4077 files changed, 59237 insertions, 34945 deletions

diff --git a/CREDITS b/CREDITS
index 1d39a6d0a510..dca6abcead6b 100644
--- a/CREDITS
+++ b/CREDITS
@@ -1677,7 +1677,7 @@ W: http://www.codemonkey.org.uk
 D: Assorted VIA x86 support.
 D: 2.5 AGPGART overhaul.
 D: CPUFREQ maintenance.
-D: Fedora kernel maintainence.
+D: Fedora kernel maintenance.
 D: Misc/Other.
 S: 314 Littleton Rd, Westford, MA 01886, USA
 
@@ -3211,7 +3211,7 @@ N: James Simmons
 E: jsimmons@infradead.org
 E: jsimmons@users.sf.net 
 D: Frame buffer device maintainer
-D: input layer developement 
+D: input layer development
 D: tty/console layer
 D: various mipsel devices 
 S: 115 Carmel Avenue 
@@ -3290,7 +3290,7 @@ S: USA
 N: Manfred Spraul
 E: manfred@colorfullife.com
 W: http://www.colorfullife.com/~manfred
-D: Lots of tiny hacks. Larger improvments to SysV IPC msg,
+D: Lots of tiny hacks. Larger improvements to SysV IPC msg,
 D: slab, pipe, select.
 S: 71701 Schwieberdingen
 S: Germany
diff --git a/Documentation/00-INDEX b/Documentation/00-INDEX
index f607367e642f..c17cd4bb2290 100644
--- a/Documentation/00-INDEX
+++ b/Documentation/00-INDEX
@@ -206,8 +206,8 @@ laptops/
 	- directory with laptop related info and laptop driver documentation.
 ldm.txt
 	- a brief description of LDM (Windows Dynamic Disks).
-leds-class.txt
-	- documents LED handling under Linux.
+leds/
+	- directory with info about LED handling under Linux.
 local_ops.txt
 	- semantics and behavior of local atomic operations.
 lockdep-design.txt
diff --git a/Documentation/ABI/testing/sysfs-bus-css b/Documentation/ABI/testing/sysfs-bus-css
index b585ec258a08..2979c40c10e9 100644
--- a/Documentation/ABI/testing/sysfs-bus-css
+++ b/Documentation/ABI/testing/sysfs-bus-css
@@ -29,7 +29,7 @@ Contact:	Cornelia Huck <cornelia.huck@de.ibm.com>
 		linux-s390@vger.kernel.org
 Description:	Contains the PIM/PAM/POM values, as reported by the
 		channel subsystem when last queried by the common I/O
-		layer (this implies that this attribute is not neccessarily
+		layer (this implies that this attribute is not necessarily
 		in sync with the values current in the channel subsystem).
 		Note: This is an I/O-subchannel specific attribute.
 Users:		s390-tools, HAL
diff --git a/Documentation/ABI/testing/sysfs-bus-pci-devices-cciss b/Documentation/ABI/testing/sysfs-bus-pci-devices-cciss
index 4f29e5f1ebfa..f5bb0a3bb8c0 100644
--- a/Documentation/ABI/testing/sysfs-bus-pci-devices-cciss
+++ b/Documentation/ABI/testing/sysfs-bus-pci-devices-cciss
@@ -59,3 +59,15 @@ Kernel Version: 2.6.31
 Contact:	iss_storagedev@hp.com
 Description:	Displays the usage count (number of opens) of logical drive Y
 		of controller X.
+
+Where:		/sys/bus/pci/devices/<dev>/ccissX/resettable
+Date:		February 2011
+Kernel Version:	2.6.38
+Contact:	iss_storagedev@hp.com
+Description:	Value of 1 indicates the controller can honor the reset_devices
+		kernel parameter.  Value of 0 indicates reset_devices cannot be
+		honored.  This is to allow, for example, kexec tools to be able
+		to warn the user if they designate an unresettable device as
+		a dump device, as kdump requires resetting the device in order
+		to work reliably.
+
diff --git a/Documentation/ABI/testing/sysfs-class-led b/Documentation/ABI/testing/sysfs-class-led
index edff6630c805..3646ec85d513 100644
--- a/Documentation/ABI/testing/sysfs-class-led
+++ b/Documentation/ABI/testing/sysfs-class-led
@@ -33,5 +33,5 @@ Contact:	Richard Purdie <rpurdie@rpsys.net>
 Description:
 		Invert the LED on/off state. This parameter is specific to
 		gpio and backlight triggers. In case of the backlight trigger,
-		it is usefull when driving a LED which is intended to indicate
+		it is useful when driving a LED which is intended to indicate
 		a device in a standby like state.
diff --git a/Documentation/ABI/testing/sysfs-driver-hid-roccat-kone b/Documentation/ABI/testing/sysfs-driver-hid-roccat-kone
index b4c4f158ab9c..3ca3971109bf 100644
--- a/Documentation/ABI/testing/sysfs-driver-hid-roccat-kone
+++ b/Documentation/ABI/testing/sysfs-driver-hid-roccat-kone
@@ -40,7 +40,7 @@ What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-
 Date:		March 2010
 Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
 Description:	The mouse can store 5 profiles which can be switched by the
-                press of a button. A profile holds informations like button
+                press of a button. A profile holds information like button
                 mappings, sensitivity, the colors of the 5 leds and light
                 effects.
                 When read, these files return the respective profile. The
diff --git a/Documentation/ABI/testing/sysfs-driver-hid-roccat-koneplus b/Documentation/ABI/testing/sysfs-driver-hid-roccat-koneplus
index 00efced73969..326e05452da7 100644
--- a/Documentation/ABI/testing/sysfs-driver-hid-roccat-koneplus
+++ b/Documentation/ABI/testing/sysfs-driver-hid-roccat-koneplus
@@ -33,7 +33,7 @@ Date:		August 2010
 Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
 Description:	The mouse can store 5 profiles which can be switched by the
 		press of a button. A profile is split in settings and buttons.
-		profile_buttons holds informations about button layout.
+		profile_buttons holds information about button layout.
 		When written, this file lets one write the respective profile
 		buttons back to the mouse. The data has to be 77 bytes long.
 		The mouse will reject invalid data.
@@ -47,7 +47,7 @@ Date:		August 2010
 Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
 Description:	The mouse can store 5 profiles which can be switched by the
 		press of a button. A profile is split in settings and buttons.
-		profile_buttons holds informations about button layout.
+		profile_buttons holds information about button layout.
 		When read, these files return the respective profile buttons.
 		The returned data is 77 bytes in size.
 		This file is readonly.
@@ -58,7 +58,7 @@ Date:		October 2010
 Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
 Description:	The mouse can store 5 profiles which can be switched by the
 		press of a button. A profile is split in settings and buttons.
-		profile_settings holds informations like resolution, sensitivity
+		profile_settings holds information like resolution, sensitivity
 		and light effects.
 		When written, this file lets one write the respective profile
 		settings back to the mouse. The data has to be 43 bytes long.
@@ -73,7 +73,7 @@ Date:		August 2010
 Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
 Description:	The mouse can store 5 profiles which can be switched by the
 		press of a button. A profile is split in settings and buttons.
-		profile_settings holds informations like resolution, sensitivity
+		profile_settings holds information like resolution, sensitivity
 		and light effects.
 		When read, these files return the respective profile settings.
 		The returned data is 43 bytes in size.
diff --git a/Documentation/ABI/testing/sysfs-driver-hid-roccat-kovaplus b/Documentation/ABI/testing/sysfs-driver-hid-roccat-kovaplus
index fdfa16f8189b..20f937c9d84f 100644
--- a/Documentation/ABI/testing/sysfs-driver-hid-roccat-kovaplus
+++ b/Documentation/ABI/testing/sysfs-driver-hid-roccat-kovaplus
@@ -52,7 +52,7 @@ Date:		January 2011
 Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
 Description:	The mouse can store 5 profiles which can be switched by the
 		press of a button. A profile is split in settings and buttons.
-		profile_buttons holds informations about button layout.
+		profile_buttons holds information about button layout.
 		When written, this file lets one write the respective profile
 		buttons back to the mouse. The data has to be 23 bytes long.
 		The mouse will reject invalid data.
@@ -66,7 +66,7 @@ Date:		January 2011
 Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
 Description:	The mouse can store 5 profiles which can be switched by the
 		press of a button. A profile is split in settings and buttons.
-		profile_buttons holds informations about button layout.
+		profile_buttons holds information about button layout.
 		When read, these files return the respective profile buttons.
 		The returned data is 23 bytes in size.
 		This file is readonly.
@@ -77,7 +77,7 @@ Date:		January 2011
 Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
 Description:	The mouse can store 5 profiles which can be switched by the
 		press of a button. A profile is split in settings and buttons.
-		profile_settings holds informations like resolution, sensitivity
+		profile_settings holds information like resolution, sensitivity
 		and light effects.
 		When written, this file lets one write the respective profile
 		settings back to the mouse. The data has to be 16 bytes long.
@@ -92,7 +92,7 @@ Date:		January 2011
 Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
 Description:	The mouse can store 5 profiles which can be switched by the
 		press of a button. A profile is split in settings and buttons.
-		profile_settings holds informations like resolution, sensitivity
+		profile_settings holds information like resolution, sensitivity
 		and light effects.
 		When read, these files return the respective profile settings.
 		The returned data is 16 bytes in size.
diff --git a/Documentation/ABI/testing/sysfs-driver-hid-roccat-pyra b/Documentation/ABI/testing/sysfs-driver-hid-roccat-pyra
index 5fab71af3c46..3f8de50e4ff1 100644
--- a/Documentation/ABI/testing/sysfs-driver-hid-roccat-pyra
+++ b/Documentation/ABI/testing/sysfs-driver-hid-roccat-pyra
@@ -39,7 +39,7 @@ Date:		August 2010
 Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
 Description:	The mouse can store 5 profiles which can be switched by the
 		press of a button. A profile is split in settings and buttons.
-		profile_settings holds informations like resolution, sensitivity
+		profile_settings holds information like resolution, sensitivity
 		and light effects.
 		When written, this file lets one write the respective profile
 		settings back to the mouse. The data has to be 13 bytes long.
@@ -54,7 +54,7 @@ Date:		August 2010
 Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
 Description:	The mouse can store 5 profiles which can be switched by the
 		press of a button. A profile is split in settings and buttons.
-		profile_settings holds informations like resolution, sensitivity
+		profile_settings holds information like resolution, sensitivity
 		and light effects.
 		When read, these files return the respective profile settings.
 		The returned data is 13 bytes in size.
@@ -66,7 +66,7 @@ Date:		August 2010
 Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
 Description:	The mouse can store 5 profiles which can be switched by the
 		press of a button. A profile is split in settings and buttons.
-		profile_buttons holds informations about button layout.
+		profile_buttons holds information about button layout.
 		When written, this file lets one write the respective profile
 		buttons back to the mouse. The data has to be 19 bytes long.
 		The mouse will reject invalid data.
@@ -80,7 +80,7 @@ Date:		August 2010
 Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
 Description:	The mouse can store 5 profiles which can be switched by the
 		press of a button. A profile is split in settings and buttons.
-		profile_buttons holds informations about button layout.
+		profile_buttons holds information about button layout.
 		When read, these files return the respective profile buttons.
 		The returned data is 19 bytes in size.
 		This file is readonly.
diff --git a/Documentation/ABI/testing/sysfs-driver-samsung-laptop b/Documentation/ABI/testing/sysfs-driver-samsung-laptop
new file mode 100644
index 000000000000..0a810231aad4
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-driver-samsung-laptop
@@ -0,0 +1,19 @@
+What:		/sys/devices/platform/samsung/performance_level
+Date:		January 1, 2010
+KernelVersion:	2.6.33
+Contact:	Greg Kroah-Hartman <gregkh@suse.de>
+Description:	Some Samsung laptops have different "performance levels"
+		that are can be modified by a function key, and by this
+		sysfs file.  These values don't always make a whole lot
+		of sense, but some users like to modify them to keep
+		their fans quiet at all costs.  Reading from this file
+		will show the current performance level.  Writing to the
+		file can change this value.
+			Valid options:
+				"silent"
+				"normal"
+				"overclock"
+		Note that not all laptops support all of these options.
+		Specifically, not all support the "overclock" option,
+		and it's still unknown if this value even changes
+		anything, other than making the user feel a bit better.
diff --git a/Documentation/ABI/testing/sysfs-fs-ext4 b/Documentation/ABI/testing/sysfs-fs-ext4
index 5fb709997d96..f22ac0872ae8 100644
--- a/Documentation/ABI/testing/sysfs-fs-ext4
+++ b/Documentation/ABI/testing/sysfs-fs-ext4
@@ -48,7 +48,7 @@ Description:
 		 will have its blocks allocated out of its own unique
 		 preallocation pool.
 
-What:		/sys/fs/ext4/<disk>/inode_readahead
+What:		/sys/fs/ext4/<disk>/inode_readahead_blks
 Date:		March 2008
 Contact:	"Theodore Ts'o" <tytso@mit.edu>
 Description:
@@ -85,7 +85,14 @@ Date:		June 2008
 Contact:	"Theodore Ts'o" <tytso@mit.edu>
 Description:
 		Tuning parameter which (if non-zero) controls the goal
-		inode used by the inode allocator in p0reference to
-		all other allocation hueristics.  This is intended for
+		inode used by the inode allocator in preference to
+		all other allocation heuristics.  This is intended for
 		debugging use only, and should be 0 on production
 		systems.
+
+What:		/sys/fs/ext4/<disk>/max_writeback_mb_bump
+Date:		September 2009
+Contact:	"Theodore Ts'o" <tytso@mit.edu>
+Description:
+		The maximum number of megabytes the writeback code will
+		try to write out before move on to another inode.
diff --git a/Documentation/ABI/testing/sysfs-platform-asus-laptop b/Documentation/ABI/testing/sysfs-platform-asus-laptop
index 41ff8ae4dee0..cd9d667c3da2 100644
--- a/Documentation/ABI/testing/sysfs-platform-asus-laptop
+++ b/Documentation/ABI/testing/sysfs-platform-asus-laptop
@@ -27,7 +27,7 @@ KernelVersion:	2.6.20
 Contact:	"Corentin Chary" <corentincj@iksaif.net>
 Description:
 		Some models like the W1N have a LED display that can be
-		used to display several informations.
+		used to display several items of information.
 		To control the LED display, use the following :
 		    echo 0x0T000DDD > /sys/devices/platform/asus_laptop/
 		where T control the 3 letters display, and DDD the 3 digits display.
diff --git a/Documentation/ABI/testing/sysfs-platform-asus-wmi b/Documentation/ABI/testing/sysfs-platform-asus-wmi
new file mode 100644
index 000000000000..2e7df91620de
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-platform-asus-wmi
@@ -0,0 +1,31 @@
+What:		/sys/devices/platform/<platform>/cpufv
+Date:		Oct 2010
+KernelVersion:	2.6.37
+Contact:	"Corentin Chary" <corentincj@iksaif.net>
+Description:
+		Change CPU clock configuration (write-only).
+		There are three available clock configuration:
+		    * 0 -> Super Performance Mode
+		    * 1 -> High Performance Mode
+		    * 2 -> Power Saving Mode
+
+What:		/sys/devices/platform/<platform>/camera
+Date:		Jan 2010
+KernelVersion:	2.6.39
+Contact:	"Corentin Chary" <corentincj@iksaif.net>
+Description:
+		Control the camera. 1 means on, 0 means off.
+
+What:		/sys/devices/platform/<platform>/cardr
+Date:		Jan 2010
+KernelVersion:	2.6.39
+Contact:	"Corentin Chary" <corentincj@iksaif.net>
+Description:
+		Control the card reader. 1 means on, 0 means off.
+
+What:		/sys/devices/platform/<platform>/touchpad
+Date:		Jan 2010
+KernelVersion:	2.6.39
+Contact:	"Corentin Chary" <corentincj@iksaif.net>
+Description:
+		Control the card touchpad. 1 means on, 0 means off.
diff --git a/Documentation/ABI/testing/sysfs-platform-eeepc-wmi b/Documentation/ABI/testing/sysfs-platform-eeepc-wmi
deleted file mode 100644
index e4b5fef5fadd..000000000000
--- a/Documentation/ABI/testing/sysfs-platform-eeepc-wmi
+++ /dev/null
@@ -1,10 +0,0 @@
-What:		/sys/devices/platform/eeepc-wmi/cpufv
-Date:		Oct 2010
-KernelVersion:	2.6.37
-Contact:	"Corentin Chary" <corentincj@iksaif.net>
-Description:
-		Change CPU clock configuration (write-only).
-		There are three available clock configuration:
-		    * 0 -> Super Performance Mode
-		    * 1 -> High Performance Mode
-		    * 2 -> Power Saving Mode
diff --git a/Documentation/DocBook/Makefile b/Documentation/DocBook/Makefile
index 2deb069aedf1..8436b018c289 100644
--- a/Documentation/DocBook/Makefile
+++ b/Documentation/DocBook/Makefile
@@ -55,7 +55,6 @@ mandocs: $(MAN)
 build_images = mkdir -p $(objtree)/Documentation/DocBook/media/ && \
 	       cp $(srctree)/Documentation/DocBook/dvb/*.png \
 	          $(srctree)/Documentation/DocBook/v4l/*.gif \
-	          $(srctree)/Documentation/DocBook/v4l/*.png \
 		  $(objtree)/Documentation/DocBook/media/
 
 xmldoclinks:
diff --git a/Documentation/DocBook/dvb/dvbproperty.xml b/Documentation/DocBook/dvb/dvbproperty.xml
index 5f57c7ccd4ba..97f397e2fb3a 100644
--- a/Documentation/DocBook/dvb/dvbproperty.xml
+++ b/Documentation/DocBook/dvb/dvbproperty.xml
@@ -40,7 +40,7 @@
 
 			<para>Central frequency of the channel.</para>
 
-			<para>For ISDB-T the channels are usally transmitted with an offset of 143kHz. E.g. a
+			<para>For ISDB-T the channels are usually transmitted with an offset of 143kHz. E.g. a
 				valid frequncy could be 474143 kHz. The stepping is bound to the bandwidth of
 				the channel which is 6MHz.</para>
 
diff --git a/Documentation/DocBook/dvb/frontend.xml b/Documentation/DocBook/dvb/frontend.xml
index 78d756de5906..60c6976fb311 100644
--- a/Documentation/DocBook/dvb/frontend.xml
+++ b/Documentation/DocBook/dvb/frontend.xml
@@ -139,7 +139,7 @@ consistently to the DiSEqC commands as described in the DiSEqC spec.</para>
 <section id="frontend_sec_tone">
 <title>SEC continuous tone</title>
 
-<para>The continous 22KHz tone is usually used with non-DiSEqC capable LNBs to switch the
+<para>The continuous 22KHz tone is usually used with non-DiSEqC capable LNBs to switch the
 high/low band of a dual-band LNB. When using DiSEqC epuipment this voltage has to
 be switched consistently to the DiSEqC commands as described in the DiSEqC
 spec.</para>
diff --git a/Documentation/DocBook/kernel-locking.tmpl b/Documentation/DocBook/kernel-locking.tmpl
index f66f4df18690..67e7ab41c0a6 100644
--- a/Documentation/DocBook/kernel-locking.tmpl
+++ b/Documentation/DocBook/kernel-locking.tmpl
@@ -1763,7 +1763,7 @@ as it would be on UP.
 There is a furthur optimization possible here: remember our original
 cache code, where there were no reference counts and the caller simply
 held the lock whenever using the object?  This is still possible: if
-you hold the lock, noone can delete the object, so you don't need to
+you hold the lock, no one can delete the object, so you don't need to
 get and put the reference count.
 </para>
 
diff --git a/Documentation/DocBook/libata.tmpl b/Documentation/DocBook/libata.tmpl
index 8c5411cfeaf0..cdd1bb9aac0d 100644
--- a/Documentation/DocBook/libata.tmpl
+++ b/Documentation/DocBook/libata.tmpl
@@ -1032,7 +1032,7 @@ and other resources, etc.
 	   <listitem>
 	   <para>
 	   This is indicated by ICRC bit in the ERROR register and
-	   means that corruption occurred during data transfer.  Upto
+	   means that corruption occurred during data transfer.  Up to
 	   ATA/ATAPI-7, the standard specifies that this bit is only
 	   applicable to UDMA transfers but ATA/ATAPI-8 draft revision
 	   1f says that the bit may be applicable to multiword DMA and
@@ -1045,10 +1045,10 @@ and other resources, etc.
 	   <term>ABRT error during data transfer or on completion</term>
 	   <listitem>
 	   <para>
-	   Upto ATA/ATAPI-7, the standard specifies that ABRT could be
+	   Up to ATA/ATAPI-7, the standard specifies that ABRT could be
 	   set on ICRC errors and on cases where a device is not able
 	   to complete a command.  Combined with the fact that MWDMA
-	   and PIO transfer errors aren't allowed to use ICRC bit upto
+	   and PIO transfer errors aren't allowed to use ICRC bit up to
 	   ATA/ATAPI-7, it seems to imply that ABRT bit alone could
 	   indicate tranfer errors.
 	   </para>
@@ -1122,7 +1122,7 @@ and other resources, etc.
 	<para>
 	Depending on commands, not all STATUS/ERROR bits are
 	applicable.  These non-applicable bits are marked with
-	&quot;na&quot; in the output descriptions but upto ATA/ATAPI-7
+	&quot;na&quot; in the output descriptions but up to ATA/ATAPI-7
 	no definition of &quot;na&quot; can be found.  However,
 	ATA/ATAPI-8 draft revision 1f describes &quot;N/A&quot; as
 	follows.
@@ -1507,7 +1507,7 @@ and other resources, etc.
 
 	<listitem>
 	<para>
-	CHS set up with INITIALIZE DEVICE PARAMETERS (seldomly used)
+	CHS set up with INITIALIZE DEVICE PARAMETERS (seldom used)
 	</para>
 	</listitem>
 
diff --git a/Documentation/DocBook/mtdnand.tmpl b/Documentation/DocBook/mtdnand.tmpl
index 620eb3f6a90a..6f242d5dee9a 100644
--- a/Documentation/DocBook/mtdnand.tmpl
+++ b/Documentation/DocBook/mtdnand.tmpl
@@ -485,7 +485,7 @@ static void board_select_chip (struct mtd_info *mtd, int chip)
 				Reed-Solomon library.
 			</para>
 			<para>
-				The ECC bytes must be placed immidiately after the data
+				The ECC bytes must be placed immediately after the data
 				bytes in order to make the syndrome generator work. This
 				is contrary to the usual layout used by software ECC. The
 				separation of data and out of band area is not longer
@@ -629,7 +629,7 @@ static void board_select_chip (struct mtd_info *mtd, int chip)
 				holds the bad block table. Store a pointer to the pattern  
 				in the pattern field. Further the length of the pattern has to be 
 				stored in len and the offset in the spare area must be given
-				in the offs member of the nand_bbt_descr stucture. For mirrored
+				in the offs member of the nand_bbt_descr structure. For mirrored
 				bad block tables different patterns are mandatory.</para></listitem>
 				<listitem><para>Table creation</para>
 				<para>Set the option NAND_BBT_CREATE to enable the table creation
@@ -648,7 +648,7 @@ static void board_select_chip (struct mtd_info *mtd, int chip)
 				<listitem><para>Table version control</para>
 				<para>Set the option NAND_BBT_VERSION to enable the table version control.
 				It's highly recommended to enable this for mirrored tables with write
-				support. It makes sure that the risk of loosing the bad block
+				support. It makes sure that the risk of losing the bad block
 				table information is reduced to the loss of the information about the
 				one worn out block which should be marked bad. The version is stored in
 				4 consecutive bytes in the spare area of the device. The position of
@@ -1060,19 +1060,19 @@ data in this page</entry>
 <row>
 <entry>0x3D</entry>
 <entry>ECC byte 21</entry>
-<entry>Error correction code byte 0 of the eigth 256 Bytes of data
+<entry>Error correction code byte 0 of the eighth 256 Bytes of data
 in this page</entry>
 </row>
 <row>
 <entry>0x3E</entry>
 <entry>ECC byte 22</entry>
-<entry>Error correction code byte 1 of the eigth 256 Bytes of data
+<entry>Error correction code byte 1 of the eighth 256 Bytes of data
 in this page</entry>
 </row>
 <row>
 <entry>0x3F</entry>
 <entry>ECC byte 23</entry>
-<entry>Error correction code byte 2 of the eigth 256 Bytes of data
+<entry>Error correction code byte 2 of the eighth 256 Bytes of data
 in this page</entry>
 </row>
 </tbody></tgroup></informaltable>
diff --git a/Documentation/DocBook/rapidio.tmpl b/Documentation/DocBook/rapidio.tmpl
index 54eb26b57372..50479360d845 100644
--- a/Documentation/DocBook/rapidio.tmpl
+++ b/Documentation/DocBook/rapidio.tmpl
@@ -133,7 +133,6 @@
 !Idrivers/rapidio/rio-sysfs.c
      </sect1>
      <sect1 id="PPC32_support"><title>PPC32 support</title>
-!Earch/powerpc/sysdev/fsl_rio.c
 !Iarch/powerpc/sysdev/fsl_rio.c
      </sect1>
   </chapter>
diff --git a/Documentation/DocBook/regulator.tmpl b/Documentation/DocBook/regulator.tmpl
index 53f4f8d3b810..346e552fa2cc 100644
--- a/Documentation/DocBook/regulator.tmpl
+++ b/Documentation/DocBook/regulator.tmpl
@@ -267,8 +267,8 @@
      <sect1 id="machine-constraint">
        <title>Constraints</title>
        <para>
-	 As well as definining the connections the machine interface
-	 also provides constraints definining the operations that
+	 As well as defining the connections the machine interface
+	 also provides constraints defining the operations that
 	 clients are allowed to perform and the parameters that may be
 	 set.  This is required since generally regulator devices will
 	 offer more flexibility than it is safe to use on a given
diff --git a/Documentation/DocBook/uio-howto.tmpl b/Documentation/DocBook/uio-howto.tmpl
index b4665b9c40b0..7c4b514d62b1 100644
--- a/Documentation/DocBook/uio-howto.tmpl
+++ b/Documentation/DocBook/uio-howto.tmpl
@@ -797,7 +797,7 @@ framework to set up sysfs files for this region. Simply leave it alone.
 	perform some initialization. After that, your hardware
 	starts working and will generate an interrupt as soon
 	as it's finished, has some data available, or needs your
-	attention because an error occured.
+	attention because an error occurred.
 	</para>
 	<para>
 	<filename>/dev/uioX</filename> is a read-only file. A
diff --git a/Documentation/DocBook/usb.tmpl b/Documentation/DocBook/usb.tmpl
index af293606fbe3..8d57c1888dca 100644
--- a/Documentation/DocBook/usb.tmpl
+++ b/Documentation/DocBook/usb.tmpl
@@ -690,7 +690,7 @@ usbdev_ioctl (int fd, int ifno, unsigned request, void *param)
 		    </para><para>
 		    This request lets kernel drivers talk to user mode code
 		    through filesystem operations even when they don't create
-		    a charactor or block special device.
+		    a character or block special device.
 		    It's also been used to do things like ask devices what
 		    device special file should be used.
 		    Two pre-defined ioctls are used
diff --git a/Documentation/DocBook/v4l/common.xml b/Documentation/DocBook/v4l/common.xml
index dbab79c215c1..9028721438dc 100644
--- a/Documentation/DocBook/v4l/common.xml
+++ b/Documentation/DocBook/v4l/common.xml
@@ -100,7 +100,7 @@ linux-kernel@vger.kernel.org, 2002-11-20. --></para>
 
       <para>By convention system administrators create various
 character device special files with these major and minor numbers in
-the <filename>/dev</filename> directory. The names recomended for the
+the <filename>/dev</filename> directory. The names recommended for the
 different V4L2 device types are listed in <xref linkend="devices" />.
 </para>
 
diff --git a/Documentation/DocBook/v4l/controls.xml b/Documentation/DocBook/v4l/controls.xml
index 2fae3e87ce73..a920ee80f640 100644
--- a/Documentation/DocBook/v4l/controls.xml
+++ b/Documentation/DocBook/v4l/controls.xml
@@ -1243,7 +1243,7 @@ values are:</entry>
 	      </row><row><entry spanname="descr">Mutes the audio when
 capturing. This is not done by muting audio hardware, which can still
 produce a slight hiss, but in the encoder itself, guaranteeing a fixed
-and reproducable audio bitstream. 0 = unmuted, 1 = muted.</entry>
+and reproducible audio bitstream. 0 = unmuted, 1 = muted.</entry>
 	      </row>
 	      <row><entry></entry></row>
 	      <row id="v4l2-mpeg-video-encoding">
diff --git a/Documentation/DocBook/v4l/dev-subdev.xml b/Documentation/DocBook/v4l/dev-subdev.xml
index 21caff6d159b..05c8fefcbcbe 100644
--- a/Documentation/DocBook/v4l/dev-subdev.xml
+++ b/Documentation/DocBook/v4l/dev-subdev.xml
@@ -90,7 +90,7 @@
     processing hardware.</para>
 
     <figure id="pipeline-scaling">
-      <title>Image Format Negotation on Pipelines</title>
+      <title>Image Format Negotiation on Pipelines</title>
       <mediaobject>
 	<imageobject>
 	  <imagedata fileref="pipeline.pdf" format="PS" />
diff --git a/Documentation/DocBook/v4l/libv4l.xml b/Documentation/DocBook/v4l/libv4l.xml
index c14fc3db2a81..3cb10ec51929 100644
--- a/Documentation/DocBook/v4l/libv4l.xml
+++ b/Documentation/DocBook/v4l/libv4l.xml
@@ -140,7 +140,7 @@ and is not locked sets the cid to the scaled value.
 			<para>int v4l2_get_control(int fd, int cid) -
 This function returns a value of 0 - 65535, scaled to from the actual range
 of the given v4l control id. when the cid does not exist, could not be
-accessed for some reason, or some error occured 0 is returned.
+accessed for some reason, or some error occurred 0 is returned.
 </para></listitem>
 </itemizedlist>
 		</section>
diff --git a/Documentation/DocBook/v4l/remote_controllers.xml b/Documentation/DocBook/v4l/remote_controllers.xml
index 3c3b667b28e7..160e464d44b7 100644
--- a/Documentation/DocBook/v4l/remote_controllers.xml
+++ b/Documentation/DocBook/v4l/remote_controllers.xml
@@ -133,7 +133,7 @@ different IR's. Due to that, V4L2 API now specifies a standard for mapping Media
 <row><entry><constant>KEY_LEFT</constant></entry><entry>Left key</entry><entry>LEFT</entry></row>
 <row><entry><constant>KEY_RIGHT</constant></entry><entry>Right key</entry><entry>RIGHT</entry></row>
 
-<row><entry><emphasis role="bold">Miscelaneous keys</emphasis></entry></row>
+<row><entry><emphasis role="bold">Miscellaneous keys</emphasis></entry></row>
 
 <row><entry><constant>KEY_DOT</constant></entry><entry>Return a dot</entry><entry>.</entry></row>
 <row><entry><constant>KEY_FN</constant></entry><entry>Select a function</entry><entry>FUNCTION</entry></row>
diff --git a/Documentation/DocBook/writing-an-alsa-driver.tmpl b/Documentation/DocBook/writing-an-alsa-driver.tmpl
index 0ba149de2608..58ced2346e67 100644
--- a/Documentation/DocBook/writing-an-alsa-driver.tmpl
+++ b/Documentation/DocBook/writing-an-alsa-driver.tmpl
@@ -4784,7 +4784,7 @@ struct _snd_pcm_runtime {
         FM registers can be directly accessed through the direct-FM API,
       defined in <filename>&lt;sound/asound_fm.h&gt;</filename>. In
       ALSA native mode, FM registers are accessed through
-      the Hardware-Dependant Device direct-FM extension API, whereas in
+      the Hardware-Dependent Device direct-FM extension API, whereas in
       OSS compatible mode, FM registers can be accessed with the OSS
       direct-FM compatible API in <filename>/dev/dmfmX</filename> device. 
       </para>
diff --git a/Documentation/PCI/MSI-HOWTO.txt b/Documentation/PCI/MSI-HOWTO.txt
index dcf7acc720e1..3f5e0b09bed5 100644
--- a/Documentation/PCI/MSI-HOWTO.txt
+++ b/Documentation/PCI/MSI-HOWTO.txt
@@ -253,8 +253,8 @@ In constrast, MSI is restricted to a maximum of 32 interrupts (and
 must be a power of two).  In addition, the MSI interrupt vectors must
 be allocated consecutively, so the system may not be able to allocate
 as many vectors for MSI as it could for MSI-X.  On some platforms, MSI
-interrupts must all be targetted at the same set of CPUs whereas MSI-X
-interrupts can all be targetted at different CPUs.
+interrupts must all be targeted at the same set of CPUs whereas MSI-X
+interrupts can all be targeted at different CPUs.
 
 4.5.2 Spinlocks
 
diff --git a/Documentation/SecurityBugs b/Documentation/SecurityBugs
index 26c3b3635d9f..a660d494c8ed 100644
--- a/Documentation/SecurityBugs
+++ b/Documentation/SecurityBugs
@@ -28,7 +28,7 @@ expect these delays to be short, measurable in days, not weeks or months.
 A disclosure date is negotiated by the security team working with the
 bug submitter as well as vendors.  However, the kernel security team
 holds the final say when setting a disclosure date.  The timeframe for
-disclosure is from immediate (esp. if it's already publically known)
+disclosure is from immediate (esp. if it's already publicly known)
 to a few weeks.  As a basic default policy, we expect report date to
 disclosure date to be on the order of 7 days.
 
diff --git a/Documentation/SubmittingDrivers b/Documentation/SubmittingDrivers
index 38d2aab59cac..319baa8b60dd 100644
--- a/Documentation/SubmittingDrivers
+++ b/Documentation/SubmittingDrivers
@@ -101,7 +101,7 @@ PM support:	Since Linux is used on many portable and desktop systems, your
 		complete overview of the power management issues related to
 		drivers see Documentation/power/devices.txt .
 
-Control:	In general if there is active maintainance of a driver by
+Control:	In general if there is active maintenance of a driver by
 		the author then patches will be redirected to them unless
 		they are totally obvious and without need of checking.
 		If you want to be the contact and update point for the
diff --git a/Documentation/SubmittingPatches b/Documentation/SubmittingPatches
index 689e2371095c..e439cd0d3375 100644
--- a/Documentation/SubmittingPatches
+++ b/Documentation/SubmittingPatches
@@ -729,7 +729,7 @@ Linus Torvalds's mail on the canonical patch format:
   <http://lkml.org/lkml/2005/4/7/183>
 
 Andi Kleen, "On submitting kernel patches"
-  Some strategies to get difficult or controversal changes in.
+  Some strategies to get difficult or controversial changes in.
   http://halobates.de/on-submitting-patches.pdf
 
 --
diff --git a/Documentation/arm/IXP4xx b/Documentation/arm/IXP4xx
index 133c5fa6c7a1..7b9351f2f555 100644
--- a/Documentation/arm/IXP4xx
+++ b/Documentation/arm/IXP4xx
@@ -36,7 +36,7 @@ Linux currently supports the following features on the IXP4xx chips:
 - Timers (watchdog, OS)
 
 The following components of the chips are not supported by Linux and
-require the use of Intel's propietary CSR softare:
+require the use of Intel's proprietary CSR softare:
 
 - USB device interface
 - Network interfaces (HSS, Utopia, NPEs, etc)
@@ -47,7 +47,7 @@ software from:
 
    http://developer.intel.com/design/network/products/npfamily/ixp425.htm    
 
-DO NOT POST QUESTIONS TO THE LINUX MAILING LISTS REGARDING THE PROPIETARY
+DO NOT POST QUESTIONS TO THE LINUX MAILING LISTS REGARDING THE PROPRIETARY
 SOFTWARE.
 
 There are several websites that provide directions/pointers on using
diff --git a/Documentation/arm/Samsung-S3C24XX/Suspend.txt b/Documentation/arm/Samsung-S3C24XX/Suspend.txt
index 7edd0e2e6c5b..1ca63b3e5635 100644
--- a/Documentation/arm/Samsung-S3C24XX/Suspend.txt
+++ b/Documentation/arm/Samsung-S3C24XX/Suspend.txt
@@ -116,7 +116,7 @@ Configuration
     Allows the entire memory to be checksummed before and after the
     suspend to see if there has been any corruption of the contents.
 
-    Note, the time to calculate the CRC is dependant on the CPU speed
+    Note, the time to calculate the CRC is dependent on the CPU speed
     and the size of memory. For an 64Mbyte RAM area on an 200MHz
     S3C2410, this can take approximately 4 seconds to complete.
 
diff --git a/Documentation/arm/Samsung/GPIO.txt b/Documentation/arm/Samsung/GPIO.txt
index 05850c62abeb..513f2562c1a3 100644
--- a/Documentation/arm/Samsung/GPIO.txt
+++ b/Documentation/arm/Samsung/GPIO.txt
@@ -5,7 +5,7 @@ Introduction
 ------------
 
 This outlines the Samsung GPIO implementation and the architecture
-specfic calls provided alongisde the drivers/gpio core.
+specific calls provided alongisde the drivers/gpio core.
 
 
 S3C24XX (Legacy)
diff --git a/Documentation/block/biodoc.txt b/Documentation/block/biodoc.txt
index 2a7b38c832c7..c6d84cfd2f56 100644
--- a/Documentation/block/biodoc.txt
+++ b/Documentation/block/biodoc.txt
@@ -497,7 +497,7 @@ The scatter gather list is in the form of an array of <page, offset, len>
 entries with their corresponding dma address mappings filled in at the
 appropriate time. As an optimization, contiguous physical pages can be
 covered by a single entry where <page> refers to the first page and <len>
-covers the range of pages (upto 16 contiguous pages could be covered this
+covers the range of pages (up to 16 contiguous pages could be covered this
 way). There is a helper routine (blk_rq_map_sg) which drivers can use to build
 the sg list.
 
@@ -565,7 +565,7 @@ struct request {
 	.
 	int tag;	/* command tag associated with request */
 	void *special;  /* same as before */
-	char *buffer;   /* valid only for low memory buffers upto
+	char *buffer;   /* valid only for low memory buffers up to
 			 current_nr_sectors */
 	.
 	.
diff --git a/Documentation/cgroups/cgroups.txt b/Documentation/cgroups/cgroups.txt
index cbdfb7d9455b..aedf1bd02fdd 100644
--- a/Documentation/cgroups/cgroups.txt
+++ b/Documentation/cgroups/cgroups.txt
@@ -110,22 +110,22 @@ university server with various users - students, professors, system
 tasks etc. The resource planning for this server could be along the
 following lines:
 
-       CPU :           Top cpuset
+       CPU :          "Top cpuset"
                        /       \
                CPUSet1         CPUSet2
-                  |              |
-               (Profs)         (Students)
+                  |               |
+               (Professors)    (Students)
 
                In addition (system tasks) are attached to topcpuset (so
                that they can run anywhere) with a limit of 20%
 
-       Memory : Professors (50%), students (30%), system (20%)
+       Memory : Professors (50%), Students (30%), system (20%)
 
-       Disk : Prof (50%), students (30%), system (20%)
+       Disk : Professors (50%), Students (30%), system (20%)
 
        Network : WWW browsing (20%), Network File System (60%), others (20%)
                                / \
-                       Prof (15%) students (5%)
+               Professors (15%)  students (5%)
 
 Browsers like Firefox/Lynx go into the WWW network class, while (k)nfsd go
 into NFS network class.
diff --git a/Documentation/cpu-hotplug.txt b/Documentation/cpu-hotplug.txt
index 45d5a217484f..a20bfd415e41 100644
--- a/Documentation/cpu-hotplug.txt
+++ b/Documentation/cpu-hotplug.txt
@@ -196,7 +196,7 @@ the state as 0 when a cpu if offline and 1 when its online.
 	#To display the current cpu state.
 	#cat /sys/devices/system/cpu/cpuX/online
 
-Q: Why cant i remove CPU0 on some systems?
+Q: Why can't i remove CPU0 on some systems?
 A: Some architectures may have some special dependency on a certain CPU.
 
 For e.g in IA64 platforms we have ability to sent platform interrupts to the
diff --git a/Documentation/dell_rbu.txt b/Documentation/dell_rbu.txt
index 15174985ad08..d262e22bddec 100644
--- a/Documentation/dell_rbu.txt
+++ b/Documentation/dell_rbu.txt
@@ -62,7 +62,7 @@ image file and then arrange all these packets back to back in to one single
 file.
 This file is then copied to /sys/class/firmware/dell_rbu/data.
 Once this file gets to the driver, the driver extracts packet_size data from
-the file and spreads it accross the physical memory in contiguous packet_sized
+the file and spreads it across the physical memory in contiguous packet_sized
 space.
 This method makes sure that all the packets get to the driver in a single operation.
 
diff --git a/Documentation/development-process/1.Intro b/Documentation/development-process/1.Intro
index 8cc2cba2b10d..9b614480aa84 100644
--- a/Documentation/development-process/1.Intro
+++ b/Documentation/development-process/1.Intro
@@ -56,13 +56,13 @@ information on kernel development.
 
 1.2: WHAT THIS DOCUMENT IS ABOUT
 
-The Linux kernel, at over 6 million lines of code and well over 1000 active
-contributors, is one of the largest and most active free software projects
-in existence.  Since its humble beginning in 1991, this kernel has evolved
-into a best-of-breed operating system component which runs on pocket-sized
-digital music players, desktop PCs, the largest supercomputers in
-existence, and all types of systems in between.  It is a robust, efficient,
-and scalable solution for almost any situation.
+The Linux kernel, at over 8 million lines of code and well over 1000
+contributors to each release, is one of the largest and most active free
+software projects in existence.  Since its humble beginning in 1991, this
+kernel has evolved into a best-of-breed operating system component which
+runs on pocket-sized digital music players, desktop PCs, the largest
+supercomputers in existence, and all types of systems in between.  It is a
+robust, efficient, and scalable solution for almost any situation.
 
 With the growth of Linux has come an increase in the number of developers
 (and companies) wishing to participate in its development.  Hardware
@@ -115,7 +115,7 @@ This document was written by Jonathan Corbet, corbet@lwn.net.  It has been
 improved by comments from Johannes Berg, James Berry, Alex Chiang, Roland
 Dreier, Randy Dunlap, Jake Edge, Jiri Kosina, Matt Mackall, Arthur Marsh,
 Amanda McPherson, Andrew Morton, Andrew Price, Tsugikazu Shibata, and
-Jochen Voß. 
+Jochen Voß.
 
 This work was supported by the Linux Foundation; thanks especially to
 Amanda McPherson, who saw the value of this effort and made it all happen.
@@ -221,7 +221,7 @@ include:
 - Everything that was said above about code review applies doubly to
   closed-source code.  Since this code is not available at all, it cannot
   have been reviewed by the community and will, beyond doubt, have serious
-  problems. 
+  problems.
 
 Makers of embedded systems, in particular, may be tempted to disregard much
 of what has been said in this section in the belief that they are shipping
diff --git a/Documentation/development-process/2.Process b/Documentation/development-process/2.Process
index 911a45186340..4823577c6509 100644
--- a/Documentation/development-process/2.Process
+++ b/Documentation/development-process/2.Process
@@ -14,16 +14,15 @@ The kernel developers use a loosely time-based release process, with a new
 major kernel release happening every two or three months.  The recent
 release history looks like this:
 
-	2.6.26	July 13, 2008
-	2.6.25	April 16, 2008
-	2.6.24	January 24, 2008
-	2.6.23	October 9, 2007
-	2.6.22	July 8, 2007
-	2.6.21	April 25, 2007
-	2.6.20	February 4, 2007
+	2.6.38	March 14, 2011
+	2.6.37	January 4, 2011
+	2.6.36	October 20, 2010
+	2.6.35	August 1, 2010
+	2.6.34	May 15, 2010
+	2.6.33	February 24, 2010
 
 Every 2.6.x release is a major kernel release with new features, internal
-API changes, and more.  A typical 2.6 release can contain over 10,000
+API changes, and more.  A typical 2.6 release can contain nearly 10,000
 changesets with changes to several hundred thousand lines of code.  2.6 is
 thus the leading edge of Linux kernel development; the kernel uses a
 rolling development model which is continually integrating major changes.
@@ -42,13 +41,13 @@ merge window do not come out of thin air; they have been collected, tested,
 and staged ahead of time.  How that process works will be described in
 detail later on).
 
-The merge window lasts for two weeks.  At the end of this time, Linus
-Torvalds will declare that the window is closed and release the first of
-the "rc" kernels.  For the kernel which is destined to be 2.6.26, for
-example, the release which happens at the end of the merge window will be
-called 2.6.26-rc1.  The -rc1 release is the signal that the time to merge
-new features has passed, and that the time to stabilize the next kernel has
-begun.
+The merge window lasts for approximately two weeks.  At the end of this
+time, Linus Torvalds will declare that the window is closed and release the
+first of the "rc" kernels.  For the kernel which is destined to be 2.6.40,
+for example, the release which happens at the end of the merge window will
+be called 2.6.40-rc1.  The -rc1 release is the signal that the time to
+merge new features has passed, and that the time to stabilize the next
+kernel has begun.
 
 Over the next six to ten weeks, only patches which fix problems should be
 submitted to the mainline.  On occasion a more significant change will be
@@ -66,20 +65,19 @@ will get up to somewhere between -rc6 and -rc9 before the kernel is
 considered to be sufficiently stable and the final 2.6.x release is made.
 At that point the whole process starts over again.
 
-As an example, here is how the 2.6.25 development cycle went (all dates in
-2008): 
-
-	January 24	2.6.24 stable release
-	February 10	2.6.25-rc1, merge window closes
-	February 15	2.6.25-rc2
-	February 24	2.6.25-rc3
-	March 4	 	2.6.25-rc4
-	March 9		2.6.25-rc5
-	March 16	2.6.25-rc6
-	March 25	2.6.25-rc7
-	April 1		2.6.25-rc8
-	April 11	2.6.25-rc9
-	April 16	2.6.25 stable release
+As an example, here is how the 2.6.38 development cycle went (all dates in
+2011):
+
+	January 4	2.6.37 stable release
+	January 18	2.6.38-rc1, merge window closes
+	January 21	2.6.38-rc2
+	February 1	2.6.38-rc3
+	February 7	2.6.38-rc4
+	February 15	2.6.38-rc5
+	February 21	2.6.38-rc6
+	March 1		2.6.38-rc7
+	March 7		2.6.38-rc8
+	March 14	2.6.38 stable release
 
 How do the developers decide when to close the development cycle and create
 the stable release?  The most significant metric used is the list of
@@ -87,7 +85,7 @@ regressions from previous releases.  No bugs are welcome, but those which
 break systems which worked in the past are considered to be especially
 serious.  For this reason, patches which cause regressions are looked upon
 unfavorably and are quite likely to be reverted during the stabilization
-period. 
+period.
 
 The developers' goal is to fix all known regressions before the stable
 release is made.  In the real world, this kind of perfection is hard to
@@ -99,26 +97,34 @@ kernels go out with a handful of known regressions though, hopefully, none
 of them are serious.
 
 Once a stable release is made, its ongoing maintenance is passed off to the
-"stable team," currently comprised of Greg Kroah-Hartman and Chris Wright.
-The stable team will release occasional updates to the stable release using
-the 2.6.x.y numbering scheme.  To be considered for an update release, a
-patch must (1) fix a significant bug, and (2) already be merged into the
-mainline for the next development kernel.  Continuing our 2.6.25 example,
-the history (as of this writing) is:
-
-	May 1		2.6.25.1
-	May 6		2.6.25.2 
-	May 9		2.6.25.3 
-	May 15		2.6.25.4
-	June 7		2.6.25.5
-	June 9		2.6.25.6
-	June 16		2.6.25.7
-	June 21		2.6.25.8
-	June 24		2.6.25.9
-
-Stable updates for a given kernel are made for approximately six months;
-after that, the maintenance of stable releases is solely the responsibility
-of the distributors which have shipped that particular kernel.
+"stable team," currently consisting of Greg Kroah-Hartman.  The stable team
+will release occasional updates to the stable release using the 2.6.x.y
+numbering scheme.  To be considered for an update release, a patch must (1)
+fix a significant bug, and (2) already be merged into the mainline for the
+next development kernel.  Kernels will typically receive stable updates for
+a little more than one development cycle past their initial release.  So,
+for example, the 2.6.36 kernel's history looked like:
+
+	October 10	2.6.36 stable release
+	November 22	2.6.36.1
+	December 9	2.6.36.2
+	January 7	2.6.36.3
+	February 17	2.6.36.4
+
+2.6.36.4 was the final stable update for the 2.6.36 release.
+
+Some kernels are designated "long term" kernels; they will receive support
+for a longer period.  As of this writing, the current long term kernels
+and their maintainers are:
+
+	2.6.27	Willy Tarreau		(Deep-frozen stable kernel)
+	2.6.32	Greg Kroah-Hartman
+	2.6.35	Andi Kleen		(Embedded flag kernel)
+
+The selection of a kernel for long-term support is purely a matter of a
+maintainer having the need and the time to maintain that release.  There
+are no known plans for long-term support for any specific upcoming
+release.
 
 
 2.2: THE LIFECYCLE OF A PATCH
@@ -130,7 +136,7 @@ each patch implements a change which is desirable to have in the mainline.
 This process can happen quickly for minor fixes, or, in the case of large
 and controversial changes, go on for years.  Much developer frustration
 comes from a lack of understanding of this process or from attempts to
-circumvent it.  
+circumvent it.
 
 In the hopes of reducing that frustration, this document will describe how
 a patch gets into the kernel.  What follows below is an introduction which
@@ -193,8 +199,8 @@ involved.
 2.3: HOW PATCHES GET INTO THE KERNEL
 
 There is exactly one person who can merge patches into the mainline kernel
-repository: Linus Torvalds.  But, of the over 12,000 patches which went
-into the 2.6.25 kernel, only 250 (around 2%) were directly chosen by Linus
+repository: Linus Torvalds.  But, of the over 9,500 patches which went
+into the 2.6.38 kernel, only 112 (around 1.3%) were directly chosen by Linus
 himself.  The kernel project has long since grown to a size where no single
 developer could possibly inspect and select every patch unassisted.  The
 way the kernel developers have addressed this growth is through the use of
@@ -229,7 +235,7 @@ first in trees dedicated to network device drivers, wireless networking,
 etc.  This chain of repositories can be arbitrarily long, though it rarely
 exceeds two or three links.  Since each maintainer in the chain trusts
 those managing lower-level trees, this process is known as the "chain of
-trust." 
+trust."
 
 Clearly, in a system like this, getting patches into the kernel depends on
 finding the right maintainer.  Sending patches directly to Linus is not
@@ -254,7 +260,7 @@ The answer comes in the form of -next trees, where subsystem trees are
 collected for testing and review.  The older of these trees, maintained by
 Andrew Morton, is called "-mm" (for memory management, which is how it got
 started).  The -mm tree integrates patches from a long list of subsystem
-trees; it also has some patches aimed at helping with debugging.  
+trees; it also has some patches aimed at helping with debugging.
 
 Beyond that, -mm contains a significant collection of patches which have
 been selected by Andrew directly.  These patches may have been posted on a
@@ -264,8 +270,8 @@ subsystem tree of last resort; if there is no other obvious path for a
 patch into the mainline, it is likely to end up in -mm.  Miscellaneous
 patches which accumulate in -mm will eventually either be forwarded on to
 an appropriate subsystem tree or be sent directly to Linus.  In a typical
-development cycle, approximately 10% of the patches going into the mainline
-get there via -mm.
+development cycle, approximately 5-10% of the patches going into the
+mainline get there via -mm.
 
 The current -mm patch is available in the "mmotm" (-mm of the moment)
 directory at:
@@ -275,7 +281,7 @@ directory at:
 Use of the MMOTM tree is likely to be a frustrating experience, though;
 there is a definite chance that it will not even compile.
 
-The other -next tree, started more recently, is linux-next, maintained by
+The primary tree for next-cycle patch merging is linux-next, maintained by
 Stephen Rothwell.  The linux-next tree is, by design, a snapshot of what
 the mainline is expected to look like after the next merge window closes.
 Linux-next trees are announced on the linux-kernel and linux-next mailing
@@ -287,25 +293,14 @@ Some information about linux-next has been gathered at:
 
 	http://linux.f-seidel.de/linux-next/pmwiki/
 
-How the linux-next tree will fit into the development process is still
-changing.  As of this writing, the first full development cycle involving
-linux-next (2.6.26) is coming to an end; thus far, it has proved to be a
-valuable resource for finding and fixing integration problems before the
-beginning of the merge window.  See http://lwn.net/Articles/287155/ for
-more information on how linux-next has worked to set up the 2.6.27 merge
-window.
-
-Some developers have begun to suggest that linux-next should be used as the
-target for future development as well.  The linux-next tree does tend to be
-far ahead of the mainline and is more representative of the tree into which
-any new work will be merged.  The downside to this idea is that the
-volatility of linux-next tends to make it a difficult development target.
-See http://lwn.net/Articles/289013/ for more information on this topic, and
-stay tuned; much is still in flux where linux-next is involved.
+Linux-next has become an integral part of the kernel development process;
+all patches merged during a given merge window should really have found
+their way into linux-next some time before the merge window opens.
+
 
 2.4.1: STAGING TREES
 
-The kernel source tree now contains the drivers/staging/ directory, where
+The kernel source tree contains the drivers/staging/ directory, where
 many sub-directories for drivers or filesystems that are on their way to
 being added to the kernel tree live.  They remain in drivers/staging while
 they still need more work; once complete, they can be moved into the
@@ -313,15 +308,23 @@ kernel proper.  This is a way to keep track of drivers that aren't
 up to Linux kernel coding or quality standards, but people may want to use
 them and track development.
 
-Greg Kroah-Hartman currently (as of 2.6.36) maintains the staging tree.
-Drivers that still need work are sent to him, with each driver having
-its own subdirectory in drivers/staging/.  Along with the driver source
-files, a TODO file should be present in the directory as well.  The TODO
-file lists the pending work that the driver needs for acceptance into
-the kernel proper, as well as a list of people that should be Cc'd for any
-patches to the driver.  Staging drivers that don't currently build should
-have their config entries depend upon CONFIG_BROKEN.  Once they can
-be successfully built without outside patches, CONFIG_BROKEN can be removed.
+Greg Kroah-Hartman currently maintains the staging tree.  Drivers that
+still need work are sent to him, with each driver having its own
+subdirectory in drivers/staging/.  Along with the driver source files, a
+TODO file should be present in the directory as well.  The TODO file lists
+the pending work that the driver needs for acceptance into the kernel
+proper, as well as a list of people that should be Cc'd for any patches to
+the driver.  Current rules require that drivers contributed to staging
+must, at a minimum, compile properly.
+
+Staging can be a relatively easy way to get new drivers into the mainline
+where, with luck, they will come to the attention of other developers and
+improve quickly.  Entry into staging is not the end of the story, though;
+code in staging which is not seeing regular progress will eventually be
+removed.  Distributors also tend to be relatively reluctant to enable
+staging drivers.  So staging is, at best, a stop on the way toward becoming
+a proper mainline driver.
+
 
 2.5: TOOLS
 
@@ -347,11 +350,7 @@ page at:
 
 	http://git-scm.com/
 
-That page has pointers to documentation and tutorials.  One should be
-aware, in particular, of the Kernel Hacker's Guide to git, which has
-information specific to kernel development:
-
-	http://linux.yyz.us/git-howto.html
+That page has pointers to documentation and tutorials.
 
 Among the kernel developers who do not use git, the most popular choice is
 almost certainly Mercurial:
@@ -408,7 +407,7 @@ There are a few hints which can help with linux-kernel survival:
   important to filter on both the topic of interest (though note that
   long-running conversations can drift away from the original subject
   without changing the email subject line) and the people who are
-  participating.  
+  participating.
 
 - Do not feed the trolls.  If somebody is trying to stir up an angry
   response, ignore them.
diff --git a/Documentation/development-process/3.Early-stage b/Documentation/development-process/3.Early-stage
index 307a159a70ca..f87ba7b3fbac 100644
--- a/Documentation/development-process/3.Early-stage
+++ b/Documentation/development-process/3.Early-stage
@@ -110,8 +110,8 @@ the kernel community's standards.  Some examples include:
 
  - The AppArmor security module made use of internal virtual filesystem
    data structures in ways which were considered to be unsafe and
-   unreliable.  This code has since been significantly reworked, but
-   remains outside of the mainline.
+   unreliable.  This concern (among others) kept AppArmor out of the
+   mainline for years.
 
 In each of these cases, a great deal of pain and extra work could have been
 avoided with some early discussion with the kernel developers.
@@ -138,6 +138,19 @@ patches, and who, if anybody, is attaching Signed-off-by lines to those
 patches.  Those are the people who will be best placed to help with a new
 development project.
 
+The task of finding the right maintainer is sometimes challenging enough
+that the kernel developers have added a script to ease the process:
+
+	.../scripts/get_maintainer.pl
+
+This script will return the current maintainer(s) for a given file or
+directory when given the "-f" option.  If passed a patch on the
+command line, it will list the maintainers who should probably receive
+copies of the patch.  There are a number of options regulating how hard
+get_maintainer.pl will search for maintainers; please be careful about
+using the more aggressive options as you may end up including developers
+who have no real interest in the code you are modifying.
+
 If all else fails, talking to Andrew Morton can be an effective way to
 track down a maintainer for a specific piece of code.
 
@@ -155,11 +168,15 @@ reaction, but, instead, little or no reaction at all.  The sad truth of the
 matter is (1) kernel developers tend to be busy, (2) there is no shortage
 of people with grand plans and little code (or even prospect of code) to
 back them up, and (3) nobody is obligated to review or comment on ideas
-posted by others.  If a request-for-comments posting yields little in the
-way of comments, do not assume that it means there is no interest in the
-project.  Unfortunately, you also cannot assume that there are no problems
-with your idea.  The best thing to do in this situation is to proceed,
-keeping the community informed as you go.
+posted by others.  Beyond that, high-level designs often hide problems
+which are only reviewed when somebody actually tries to implement those
+designs; for that reason, kernel developers would rather see the code.
+
+If a request-for-comments posting yields little in the way of comments, do
+not assume that it means there is no interest in the project.
+Unfortunately, you also cannot assume that there are no problems with your
+idea.  The best thing to do in this situation is to proceed, keeping the
+community informed as you go.
 
 
 3.5: GETTING OFFICIAL BUY-IN
diff --git a/Documentation/development-process/4.Coding b/Documentation/development-process/4.Coding
index 2278693c8ffa..f3f1a469443c 100644
--- a/Documentation/development-process/4.Coding
+++ b/Documentation/development-process/4.Coding
@@ -131,6 +131,11 @@ classic time/space tradeoff taught in beginning data structures classes
 often does not apply to contemporary hardware.  Space *is* time, in that a
 larger program will run slower than one which is more compact.
 
+More recent compilers take an increasingly active role in deciding whether
+a given function should actually be inlined or not.  So the liberal
+placement of "inline" keywords may not just be excessive; it could also be
+irrelevant.
+
 
 * Locking
 
@@ -285,6 +290,13 @@ be found at https://sparse.wiki.kernel.org/index.php/Main_Page if your
 distributor does not package it); it can then be run on the code by adding
 "C=1" to your make command.
 
+The "Coccinelle" tool (http://coccinelle.lip6.fr/) is able to find a wide
+variety of potential coding problems; it can also propose fixes for those
+problems.  Quite a few "semantic patches" for the kernel have been packaged
+under the scripts/coccinelle directory; running "make coccicheck" will run
+through those semantic patches and report on any problems found.  See
+Documentation/coccinelle.txt for more information.
+
 Other kinds of portability errors are best found by compiling your code for
 other architectures.  If you do not happen to have an S/390 system or a
 Blackfin development board handy, you can still perform the compilation
@@ -308,7 +320,9 @@ The first piece of documentation for any patch is its associated
 changelog.  Log entries should describe the problem being solved, the form
 of the solution, the people who worked on the patch, any relevant
 effects on performance, and anything else that might be needed to
-understand the patch.
+understand the patch.  Be sure that the changelog says *why* the patch is
+worth applying; a surprising number of developers fail to provide that
+information.
 
 Any code which adds a new user-space interface - including new sysfs or
 /proc files - should include documentation of that interface which enables
@@ -321,7 +335,7 @@ boot-time parameters.  Any patch which adds new parameters should add the
 appropriate entries to this file.
 
 Any new configuration options must be accompanied by help text which
-clearly explains the options and when the user might want to select them. 
+clearly explains the options and when the user might want to select them.
 
 Internal API information for many subsystems is documented by way of
 specially-formatted comments; these comments can be extracted and formatted
@@ -372,7 +386,8 @@ which is broken by the change.  For a widely-used function, this duty can
 lead to literally hundreds or thousands of changes - many of which are
 likely to conflict with work being done by other developers.  Needless to
 say, this can be a large job, so it is best to be sure that the
-justification is solid.
+justification is solid.  Note that the Coccinelle tool can help with
+wide-ranging API changes.
 
 When making an incompatible API change, one should, whenever possible,
 ensure that code which has not been updated is caught by the compiler.
diff --git a/Documentation/development-process/5.Posting b/Documentation/development-process/5.Posting
index f622c1e9f0f9..903a2546f138 100644
--- a/Documentation/development-process/5.Posting
+++ b/Documentation/development-process/5.Posting
@@ -60,12 +60,15 @@ even in the short term.
 
 Patches must be prepared against a specific version of the kernel.  As a
 general rule, a patch should be based on the current mainline as found in
-Linus's git tree.  It may become necessary to make versions against -mm,
-linux-next, or a subsystem tree, though, to facilitate wider testing and
-review.  Depending on the area of your patch and what is going on
-elsewhere, basing a patch against these other trees can require a
-significant amount of work resolving conflicts and dealing with API
-changes.
+Linus's git tree.  When basing on mainline, start with a well-known release
+point - a stable or -rc release - rather than branching off the mainline at
+an arbitrary spot.
+
+It may become necessary to make versions against -mm, linux-next, or a
+subsystem tree, though, to facilitate wider testing and review.  Depending
+on the area of your patch and what is going on elsewhere, basing a patch
+against these other trees can require a significant amount of work
+resolving conflicts and dealing with API changes.
 
 Only the most simple changes should be formatted as a single patch;
 everything else should be made as a logical series of changes.  Splitting
@@ -100,11 +103,11 @@ rules of thumb, however, which can help considerably:
    result is a broken kernel, you will make life harder for developers and
    users who are engaging in the noble work of tracking down problems.
 
- - Do not overdo it, though.  One developer recently posted a set of edits
+ - Do not overdo it, though.  One developer once posted a set of edits
    to a single file as 500 separate patches - an act which did not make him
    the most popular person on the kernel mailing list.  A single patch can
    be reasonably large as long as it still contains a single *logical*
-   change. 
+   change.
 
  - It can be tempting to add a whole new infrastructure with a series of
    patches, but to leave that infrastructure unused until the final patch
@@ -162,7 +165,8 @@ To that end, the summary line should describe the effects of and motivation
 for the change as well as possible given the one-line constraint.  The
 detailed description can then amplify on those topics and provide any
 needed additional information.  If the patch fixes a bug, cite the commit
-which introduced the bug if possible.  If a problem is associated with
+which introduced the bug if possible (and please provide both the commit ID
+and the title when citing commits).  If a problem is associated with
 specific log or compiler output, include that output to help others
 searching for a solution to the same problem.  If the change is meant to
 support other changes coming in later patch, say so.  If internal APIs are
@@ -230,7 +234,7 @@ take care of:
    which have had gratuitous white-space changes or line wrapping performed
    by the mail client will not apply at the other end, and often will not
    be examined in any detail.  If there is any doubt at all, mail the patch
-   to yourself and convince yourself that it shows up intact.  
+   to yourself and convince yourself that it shows up intact.
 
    Documentation/email-clients.txt has some helpful hints on making
    specific mail clients work for sending patches.
@@ -287,7 +291,7 @@ something like:
 
 where "nn" is the ordinal number of the patch, "mm" is the total number of
 patches in the series, and "subsys" is the name of the affected subsystem.
-Clearly, nn/mm can be omitted for a single, standalone patch.  
+Clearly, nn/mm can be omitted for a single, standalone patch.
 
 If you have a significant series of patches, it is customary to send an
 introductory description as part zero.  This convention is not universally
@@ -299,5 +303,5 @@ In general, the second and following parts of a multi-part patch should be
 sent as a reply to the first part so that they all thread together at the
 receiving end.  Tools like git and quilt have commands to mail out a set of
 patches with the proper threading.  If you have a long series, though, and
-are using git, please provide the --no-chain-reply-to option to avoid
+are using git, please stay away from the --chain-reply-to option to avoid
 creating exceptionally deep nesting.
diff --git a/Documentation/development-process/6.Followthrough b/Documentation/development-process/6.Followthrough
index a8fba3d83a85..41d324a9420d 100644
--- a/Documentation/development-process/6.Followthrough
+++ b/Documentation/development-process/6.Followthrough
@@ -66,6 +66,11 @@ be easy to become blinded by your own solution to a problem to the point
 that you don't realize that something is fundamentally wrong or, perhaps,
 you're not even solving the right problem.
 
+Andrew Morton has suggested that every review comment which does not result
+in a code change should result in an additional code comment instead; that
+can help future reviewers avoid the questions which came up the first time
+around.
+
 One fatal mistake is to ignore review comments in the hope that they will
 go away.  They will not go away.  If you repost code without having
 responded to the comments you got the time before, you're likely to find
@@ -100,7 +105,7 @@ entry into a subsystem maintainer's tree.  How that works varies from one
 subsystem to the next; each maintainer has his or her own way of doing
 things.  In particular, there may be more than one tree - one, perhaps,
 dedicated to patches planned for the next merge window, and another for
-longer-term work.  
+longer-term work.
 
 For patches applying to areas for which there is no obvious subsystem tree
 (memory management patches, for example), the default tree often ends up
@@ -109,11 +114,10 @@ through the -mm tree.
 
 Inclusion into a subsystem tree can bring a higher level of visibility to a
 patch.  Now other developers working with that tree will get the patch by
-default.  Subsystem trees typically feed into -mm and linux-next as well,
-making their contents visible to the development community as a whole.  At
-this point, there's a good chance that you will get more comments from a
-new set of reviewers; these comments need to be answered as in the previous
-round.
+default.  Subsystem trees typically feed linux-next as well, making their
+contents visible to the development community as a whole.  At this point,
+there's a good chance that you will get more comments from a new set of
+reviewers; these comments need to be answered as in the previous round.
 
 What may also happen at this point, depending on the nature of your patch,
 is that conflicts with work being done by others turn up.  In the worst
diff --git a/Documentation/development-process/7.AdvancedTopics b/Documentation/development-process/7.AdvancedTopics
index 837179447e17..26dc3fa196e4 100644
--- a/Documentation/development-process/7.AdvancedTopics
+++ b/Documentation/development-process/7.AdvancedTopics
@@ -119,7 +119,7 @@ can affect your ability to get trees pulled in the future.  Quoting Linus:
 	to trust things *without* then having to go and check every
 	individual change by hand.
 
-(http://lwn.net/Articles/224135/).  
+(http://lwn.net/Articles/224135/).
 
 To avoid this kind of situation, ensure that all patches within a given
 branch stick closely to the associated topic; a "driver fixes" branch
@@ -138,7 +138,7 @@ When requesting a pull, be sure to give all the relevant information: where
 your tree is, what branch to pull, and what changes will result from the
 pull.  The git request-pull command can be helpful in this regard; it will
 format the request as other developers expect, and will also check to be
-sure that you have remembered to push those changes to the public server. 
+sure that you have remembered to push those changes to the public server.
 
 
 7.2: REVIEWING PATCHES
diff --git a/Documentation/device-mapper/dm-flakey.txt b/Documentation/device-mapper/dm-flakey.txt
new file mode 100644
index 000000000000..c8efdfd19a65
--- /dev/null
+++ b/Documentation/device-mapper/dm-flakey.txt
@@ -0,0 +1,17 @@
+dm-flakey
+=========
+
+This target is the same as the linear target except that it returns I/O
+errors periodically.  It's been found useful in simulating failing
+devices for testing purposes.
+
+Starting from the time the table is loaded, the device is available for
+<up interval> seconds, then returns errors for <down interval> seconds,
+and then this cycle repeats.
+
+Parameters: <dev path> <offset> <up interval> <down interval>
+    <dev path>: Full pathname to the underlying block-device, or a
+                "major:minor" device-number.
+    <offset>: Starting sector within the device.
+    <up interval>: Number of seconds device is available.
+    <down interval>: Number of seconds device returns errors.
diff --git a/Documentation/device-mapper/dm-service-time.txt b/Documentation/device-mapper/dm-service-time.txt
index 7d00668e97bb..fb1d4a0cf122 100644
--- a/Documentation/device-mapper/dm-service-time.txt
+++ b/Documentation/device-mapper/dm-service-time.txt
@@ -37,7 +37,7 @@ Algorithm
 =========
 
 dm-service-time adds the I/O size to 'in-flight-size' when the I/O is
-dispatched and substracts when completed.
+dispatched and subtracts when completed.
 Basically, dm-service-time selects a path having minimum service time
 which is calculated by:
 
diff --git a/Documentation/devicetree/bindings/fb/sm501fb.txt b/Documentation/devicetree/bindings/fb/sm501fb.txt
index 7d319fba9b5b..9d9f0098092b 100644
--- a/Documentation/devicetree/bindings/fb/sm501fb.txt
+++ b/Documentation/devicetree/bindings/fb/sm501fb.txt
@@ -18,9 +18,9 @@ Optional properties:
 - edid : verbatim EDID data block describing attached display.
   Data from the detailed timing descriptor will be used to
   program the display controller.
-- little-endian: availiable on big endian systems, to
+- little-endian: available on big endian systems, to
   set different foreign endian.
-- big-endian: availiable on little endian systems, to
+- big-endian: available on little endian systems, to
   set different foreign endian.
 
 Example for MPC5200:
diff --git a/Documentation/devicetree/bindings/mtd/fsl-upm-nand.txt b/Documentation/devicetree/bindings/mtd/fsl-upm-nand.txt
index a48b2cadc7f0..00f1f546b32e 100644
--- a/Documentation/devicetree/bindings/mtd/fsl-upm-nand.txt
+++ b/Documentation/devicetree/bindings/mtd/fsl-upm-nand.txt
@@ -15,7 +15,7 @@ Optional properties:
 - gpios : may specify optional GPIOs connected to the Ready-Not-Busy pins
 	(R/B#). For multi-chip devices, "n" GPIO definitions are required
 	according to the number of chips.
-- chip-delay : chip dependent delay for transfering data from array to
+- chip-delay : chip dependent delay for transferring data from array to
 	read registers (tR). Required if property "gpios" is not used
 	(R/B# pins not connected).
 
diff --git a/Documentation/devicetree/bindings/net/can/sja1000.txt b/Documentation/devicetree/bindings/net/can/sja1000.txt
index d6d209ded937..c2dbcec0ee31 100644
--- a/Documentation/devicetree/bindings/net/can/sja1000.txt
+++ b/Documentation/devicetree/bindings/net/can/sja1000.txt
@@ -39,7 +39,7 @@ Optional properties:
 
 - nxp,no-comparator-bypass : Allows to disable the CAN input comperator.
 
-For futher information, please have a look to the SJA1000 data sheet.
+For further information, please have a look to the SJA1000 data sheet.
 
 Examples:
 
diff --git a/Documentation/devicetree/bindings/powerpc/fsl/mpic.txt b/Documentation/devicetree/bindings/powerpc/fsl/mpic.txt
index 8aa10f45ebe6..4f6145859aab 100644
--- a/Documentation/devicetree/bindings/powerpc/fsl/mpic.txt
+++ b/Documentation/devicetree/bindings/powerpc/fsl/mpic.txt
@@ -199,7 +199,7 @@ EXAMPLE 4
 
 EXAMPLE 5
 	/*
-	 * Definition of an error interrupt (interupt type 1).
+	 * Definition of an error interrupt (interrupt type 1).
 	 * SoC interrupt number is 16 and the specific error
          * interrupt bit in the error interrupt summary register
 	 * is 23.
diff --git a/Documentation/devicetree/booting-without-of.txt b/Documentation/devicetree/booting-without-of.txt
index 55fd2623445b..50619a0720a8 100644
--- a/Documentation/devicetree/booting-without-of.txt
+++ b/Documentation/devicetree/booting-without-of.txt
@@ -138,7 +138,7 @@ and properties to be present. This will be described in detail in
 section III, but, for example, the kernel does not require you to
 create a node for every PCI device in the system. It is a requirement
 to have a node for PCI host bridges in order to provide interrupt
-routing informations and memory/IO ranges, among others. It is also
+routing information and memory/IO ranges, among others. It is also
 recommended to define nodes for on chip devices and other buses that
 don't specifically fit in an existing OF specification. This creates a
 great flexibility in the way the kernel can then probe those and match
@@ -385,7 +385,7 @@ struct boot_param_header {
      among others, by kexec. If you are on an SMP system, this value
      should match the content of the "reg" property of the CPU node in
      the device-tree corresponding to the CPU calling the kernel entry
-     point (see further chapters for more informations on the required
+     point (see further chapters for more information on the required
      device-tree contents)
 
    - size_dt_strings
@@ -553,7 +553,7 @@ looks like in practice.
 
 This tree is almost a minimal tree. It pretty much contains the
 minimal set of required nodes and properties to boot a linux kernel;
-that is, some basic model informations at the root, the CPUs, and the
+that is, some basic model information at the root, the CPUs, and the
 physical memory layout.  It also includes misc information passed
 through /chosen, like in this example, the platform type (mandatory)
 and the kernel command line arguments (optional).
diff --git a/Documentation/dvb/README.dvb-usb b/Documentation/dvb/README.dvb-usb
index c8238e44ed6b..c4d963a67d6f 100644
--- a/Documentation/dvb/README.dvb-usb
+++ b/Documentation/dvb/README.dvb-usb
@@ -138,7 +138,7 @@ Hotplug is able to load the driver, when it is needed (because you plugged
 in the device).
 
 If you want to enable debug output, you have to load the driver manually and
-from withing the dvb-kernel cvs repository.
+from within the dvb-kernel cvs repository.
 
 first have a look, which debug level are available:
 
diff --git a/Documentation/dvb/ci.txt b/Documentation/dvb/ci.txt
index 4a0c2b56e690..6c3bda50f7dc 100644
--- a/Documentation/dvb/ci.txt
+++ b/Documentation/dvb/ci.txt
@@ -47,7 +47,7 @@ so on.
 
 * CI modules that are supported
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-The CI module support is largely dependant upon the firmware on the cards
+The CI module support is largely dependent upon the firmware on the cards
 Some cards do support almost all of the available CI modules. There is
 nothing much that can be done in order to make additional CI modules
 working with these cards.
diff --git a/Documentation/dvb/faq.txt b/Documentation/dvb/faq.txt
index 121832e5d899..97b1373f2428 100644
--- a/Documentation/dvb/faq.txt
+++ b/Documentation/dvb/faq.txt
@@ -106,7 +106,7 @@ Some very frequently asked questions about linuxtv-dvb
 5. The dvb_net device doesn't give me any packets at all
 
 	Run tcpdump on the dvb0_0 interface. This sets the interface
-	into promiscous mode so it accepts any packets from the PID
+	into promiscuous mode so it accepts any packets from the PID
 	you have configured with the dvbnet utility. Check if there
 	are any packets with the IP addr and MAC addr you have
 	configured with ifconfig.
diff --git a/Documentation/dvb/udev.txt b/Documentation/dvb/udev.txt
index 68ee224b6aae..412305b7c557 100644
--- a/Documentation/dvb/udev.txt
+++ b/Documentation/dvb/udev.txt
@@ -1,7 +1,7 @@
 The DVB subsystem currently registers to the sysfs subsystem using the
 "class_simple" interface.
 
-This means that only the basic informations like module loading parameters
+This means that only the basic information like module loading parameters
 are presented through sysfs. Other things that might be interesting are
 currently *not* available.
 
diff --git a/Documentation/dynamic-debug-howto.txt b/Documentation/dynamic-debug-howto.txt
index e6c4b757025b..f959909d7154 100644
--- a/Documentation/dynamic-debug-howto.txt
+++ b/Documentation/dynamic-debug-howto.txt
@@ -6,7 +6,7 @@ This document describes how to use the dynamic debug (ddebug) feature.
 
 Dynamic debug is designed to allow you to dynamically enable/disable kernel
 code to obtain additional kernel information. Currently, if
-CONFIG_DYNAMIC_DEBUG is set, then all pr_debug()/dev_debug() calls can be
+CONFIG_DYNAMIC_DEBUG is set, then all pr_debug()/dev_dbg() calls can be
 dynamically enabled per-callsite.
 
 Dynamic debug has even more useful features:
@@ -26,7 +26,7 @@ Dynamic debug has even more useful features:
 Controlling dynamic debug Behaviour
 ===================================
 
-The behaviour of pr_debug()/dev_debug()s are controlled via writing to a
+The behaviour of pr_debug()/dev_dbg()s are controlled via writing to a
 control file in the 'debugfs' filesystem. Thus, you must first mount the debugfs
 filesystem, in order to make use of this feature. Subsequently, we refer to the
 control file as: <debugfs>/dynamic_debug/control. For example, if you want to
diff --git a/Documentation/edac.txt b/Documentation/edac.txt
index 9ee774de57cd..249822cde82b 100644
--- a/Documentation/edac.txt
+++ b/Documentation/edac.txt
@@ -311,7 +311,7 @@ Total Correctable Errors count attribute file:
 	'ce_noinfo_count'
 
 	This attribute file displays the number of CEs that
-	have occurred wherewith no informations as to which DIMM slot
+	have occurred wherewith no information as to which DIMM slot
 	is having errors. Memory is handicapped, but operational,
 	yet no information is available to indicate which slot
 	the failing memory is in. This count field should be also
@@ -741,7 +741,7 @@ were done at i7core_edac driver. This chapter will cover those differences
    As EDAC API maps the minimum unity is csrows, the driver sequencially
    maps channel/dimm into different csrows.
 
-   For example, suposing the following layout:
+   For example, supposing the following layout:
 	Ch0 phy rd0, wr0 (0x063f4031): 2 ranks, UDIMMs
 	  dimm 0 1024 Mb offset: 0, bank: 8, rank: 1, row: 0x4000, col: 0x400
 	  dimm 1 1024 Mb offset: 4, bank: 8, rank: 1, row: 0x4000, col: 0x400
diff --git a/Documentation/eisa.txt b/Documentation/eisa.txt
index f297fc1202ae..38cf0c7b559f 100644
--- a/Documentation/eisa.txt
+++ b/Documentation/eisa.txt
@@ -84,7 +84,7 @@ struct eisa_driver {
 
 id_table	: an array of NULL terminated EISA id strings,
 		  followed by an empty string. Each string can
-		  optionally be paired with a driver-dependant value
+		  optionally be paired with a driver-dependent value
 		  (driver_data).
 
 driver		: a generic driver, such as described in
diff --git a/Documentation/fb/viafb.txt b/Documentation/fb/viafb.txt
index 1a2e8aa3fbb1..444e34b52ae1 100644
--- a/Documentation/fb/viafb.txt
+++ b/Documentation/fb/viafb.txt
@@ -204,7 +204,7 @@ Notes:
 
     supported_output_devices
 
-        This read-only file contains a full ',' seperated list containing all
+        This read-only file contains a full ',' separated list containing all
         output devices that could be available on your platform. It is likely
         that not all of those have a connector on your hardware but it should
         provide a good starting point to figure out which of those names match
@@ -225,7 +225,7 @@ Notes:
         This can happen for example if only one (the other) iga is used.
         Writing to these files allows adjusting the output devices during
         runtime. One can add new devices, remove existing ones or switch
-        between igas. Essentially you can write a ',' seperated list of device
+        between igas. Essentially you can write a ',' separated list of device
         names (or a single one) in the same format as the output to those
         files. You can add a '+' or '-' as a prefix allowing simple addition
         and removal of devices. So a prefix '+' adds the devices from your list
diff --git a/Documentation/filesystems/Locking b/Documentation/filesystems/Locking
index 2e994efe12cb..61b31acb9176 100644
--- a/Documentation/filesystems/Locking
+++ b/Documentation/filesystems/Locking
@@ -128,7 +128,7 @@ alloc_inode:
 destroy_inode:
 dirty_inode:				(must not sleep)
 write_inode:
-drop_inode:				!!!inode_lock!!!
+drop_inode:				!!!inode->i_lock!!!
 evict_inode:
 put_super:		write
 write_super:		read
diff --git a/Documentation/filesystems/autofs4-mount-control.txt b/Documentation/filesystems/autofs4-mount-control.txt
index 51986bf08a4d..4c95935cbcf4 100644
--- a/Documentation/filesystems/autofs4-mount-control.txt
+++ b/Documentation/filesystems/autofs4-mount-control.txt
@@ -309,7 +309,7 @@ ioctlfd field set to the descriptor obtained from the open call.
 AUTOFS_DEV_IOCTL_TIMEOUT_CMD
 ----------------------------
 
-Set the expire timeout for mounts withing an autofs mount point.
+Set the expire timeout for mounts within an autofs mount point.
 
 The call requires an initialized struct autofs_dev_ioctl with the
 ioctlfd field set to the descriptor obtained from the open call.
diff --git a/Documentation/filesystems/caching/netfs-api.txt b/Documentation/filesystems/caching/netfs-api.txt
index 1902c57b72ef..a167ab876c35 100644
--- a/Documentation/filesystems/caching/netfs-api.txt
+++ b/Documentation/filesystems/caching/netfs-api.txt
@@ -95,7 +95,7 @@ restraints as possible on how an index is structured and where it is placed in
 the tree.  The netfs can even mix indices and data files at the same level, but
 it's not recommended.
 
-Each index entry consists of a key of indeterminate length plus some auxilliary
+Each index entry consists of a key of indeterminate length plus some auxiliary
 data, also of indeterminate length.
 
 There are some limits on indices:
@@ -203,23 +203,23 @@ This has the following fields:
 
      If the function is absent, a file size of 0 is assumed.
 
- (6) A function to retrieve auxilliary data from the netfs [optional].
+ (6) A function to retrieve auxiliary data from the netfs [optional].
 
      This function will be called with the netfs data that was passed to the
-     cookie acquisition function and the maximum length of auxilliary data that
-     it may provide.  It should write the auxilliary data into the given buffer
+     cookie acquisition function and the maximum length of auxiliary data that
+     it may provide.  It should write the auxiliary data into the given buffer
      and return the quantity it wrote.
 
-     If this function is absent, the auxilliary data length will be set to 0.
+     If this function is absent, the auxiliary data length will be set to 0.
 
-     The length of the auxilliary data buffer may be dependent on the key
+     The length of the auxiliary data buffer may be dependent on the key
      length.  A netfs mustn't rely on being able to provide more than 400 bytes
      for both.
 
- (7) A function to check the auxilliary data [optional].
+ (7) A function to check the auxiliary data [optional].
 
      This function will be called to check that a match found in the cache for
-     this object is valid.  For instance with AFS it could check the auxilliary
+     this object is valid.  For instance with AFS it could check the auxiliary
      data against the data version number returned by the server to determine
      whether the index entry in a cache is still valid.
 
@@ -232,7 +232,7 @@ This has the following fields:
 	(*) FSCACHE_CHECKAUX_NEEDS_UPDATE	- the entry requires update
 	(*) FSCACHE_CHECKAUX_OBSOLETE		- the entry should be deleted
 
-     This function can also be used to extract data from the auxilliary data in
+     This function can also be used to extract data from the auxiliary data in
      the cache and copy it into the netfs's structures.
 
  (8) A pair of functions to manage contexts for the completion callback
diff --git a/Documentation/filesystems/configfs/configfs.txt b/Documentation/filesystems/configfs/configfs.txt
index fabcb0e00f25..dd57bb6bb390 100644
--- a/Documentation/filesystems/configfs/configfs.txt
+++ b/Documentation/filesystems/configfs/configfs.txt
@@ -409,7 +409,7 @@ As a consequence of this, default_groups cannot be removed directly via
 rmdir(2).  They also are not considered when rmdir(2) on the parent
 group is checking for children.
 
-[Dependant Subsystems]
+[Dependent Subsystems]
 
 Sometimes other drivers depend on particular configfs items.  For
 example, ocfs2 mounts depend on a heartbeat region item.  If that
diff --git a/Documentation/filesystems/ext4.txt b/Documentation/filesystems/ext4.txt
index 6ab9442d7eeb..c79ec58fd7f6 100644
--- a/Documentation/filesystems/ext4.txt
+++ b/Documentation/filesystems/ext4.txt
@@ -97,7 +97,7 @@ Note: More extensive information for getting started with ext4 can be
 * Inode allocation using large virtual block groups via flex_bg
 * delayed allocation
 * large block (up to pagesize) support
-* efficent new ordered mode in JBD2 and ext4(avoid using buffer head to force
+* efficient new ordered mode in JBD2 and ext4(avoid using buffer head to force
   the ordering)
 
 [1] Filesystems with a block size of 1k may see a limit imposed by the
@@ -106,7 +106,7 @@ directory hash tree having a maximum depth of two.
 2.2 Candidate features for future inclusion
 
 * Online defrag (patches available but not well tested)
-* reduced mke2fs time via lazy itable initialization in conjuction with
+* reduced mke2fs time via lazy itable initialization in conjunction with
   the uninit_bg feature (capability to do this is available in e2fsprogs
   but a kernel thread to do lazy zeroing of unused inode table blocks
   after filesystem is first mounted is required for safety)
@@ -367,12 +367,47 @@ init_itable=n		The lazy itable init code will wait n times the
 			minimizes the impact on the systme performance
 			while file system's inode table is being initialized.
 
-discard		Controls whether ext4 should issue discard/TRIM
+discard			Controls whether ext4 should issue discard/TRIM
 nodiscard(*)		commands to the underlying block device when
 			blocks are freed.  This is useful for SSD devices
 			and sparse/thinly-provisioned LUNs, but it is off
 			by default until sufficient testing has been done.
 
+nouid32			Disables 32-bit UIDs and GIDs.  This is for
+			interoperability  with  older kernels which only
+			store and expect 16-bit values.
+
+resize			Allows to resize filesystem to the end of the last
+			existing block group, further resize has to be done
+			with resize2fs either online, or offline. It can be
+			used only with conjunction with remount.
+
+block_validity		This options allows to enables/disables the in-kernel
+noblock_validity	facility for tracking filesystem metadata blocks
+			within internal data structures. This allows multi-
+			block allocator and other routines to quickly locate
+			extents which might overlap with filesystem metadata
+			blocks. This option is intended for debugging
+			purposes and since it negatively affects the
+			performance, it is off by default.
+
+dioread_lock		Controls whether or not ext4 should use the DIO read
+dioread_nolock		locking. If the dioread_nolock option is specified
+			ext4 will allocate uninitialized extent before buffer
+			write and convert the extent to initialized after IO
+			completes. This approach allows ext4 code to avoid
+			using inode mutex, which improves scalability on high
+			speed storages. However this does not work with nobh
+			option and the mount will fail. Nor does it work with
+			data journaling and dioread_nolock option will be
+			ignored with kernel warning. Note that dioread_nolock
+			code path is only used for extent-based files.
+			Because of the restrictions this options comprises
+			it is off by default (e.g. dioread_lock).
+
+i_version		Enable 64-bit inode version support. This option is
+			off by default.
+
 Data Mode
 =========
 There are 3 different data modes:
@@ -400,6 +435,176 @@ needs to be read from and written to disk at the same time where it
 outperforms all others modes.  Currently ext4 does not have delayed
 allocation support if this data journalling mode is selected.
 
+/proc entries
+=============
+
+Information about mounted ext4 file systems can be found in
+/proc/fs/ext4.  Each mounted filesystem will have a directory in
+/proc/fs/ext4 based on its device name (i.e., /proc/fs/ext4/hdc or
+/proc/fs/ext4/dm-0).   The files in each per-device directory are shown
+in table below.
+
+Files in /proc/fs/ext4/<devname>
+..............................................................................
+ File            Content
+ mb_groups       details of multiblock allocator buddy cache of free blocks
+..............................................................................
+
+/sys entries
+============
+
+Information about mounted ext4 file systems can be found in
+/sys/fs/ext4.  Each mounted filesystem will have a directory in
+/sys/fs/ext4 based on its device name (i.e., /sys/fs/ext4/hdc or
+/sys/fs/ext4/dm-0).   The files in each per-device directory are shown
+in table below.
+
+Files in /sys/fs/ext4/<devname>
+(see also Documentation/ABI/testing/sysfs-fs-ext4)
+..............................................................................
+ File                         Content
+
+ delayed_allocation_blocks    This file is read-only and shows the number of
+                              blocks that are dirty in the page cache, but
+                              which do not have their location in the
+                              filesystem allocated yet.
+
+ inode_goal                   Tuning parameter which (if non-zero) controls
+                              the goal inode used by the inode allocator in
+                              preference to all other allocation heuristics.
+                              This is intended for debugging use only, and
+                              should be 0 on production systems.
+
+ inode_readahead_blks         Tuning parameter which controls the maximum
+                              number of inode table blocks that ext4's inode
+                              table readahead algorithm will pre-read into
+                              the buffer cache
+
+ lifetime_write_kbytes        This file is read-only and shows the number of
+                              kilobytes of data that have been written to this
+                              filesystem since it was created.
+
+ max_writeback_mb_bump        The maximum number of megabytes the writeback
+                              code will try to write out before move on to
+                              another inode.
+
+ mb_group_prealloc            The multiblock allocator will round up allocation
+                              requests to a multiple of this tuning parameter if
+                              the stripe size is not set in the ext4 superblock
+
+ mb_max_to_scan               The maximum number of extents the multiblock
+                              allocator will search to find the best extent
+
+ mb_min_to_scan               The minimum number of extents the multiblock
+                              allocator will search to find the best extent
+
+ mb_order2_req                Tuning parameter which controls the minimum size
+                              for requests (as a power of 2) where the buddy
+                              cache is used
+
+ mb_stats                     Controls whether the multiblock allocator should
+                              collect statistics, which are shown during the
+                              unmount. 1 means to collect statistics, 0 means
+                              not to collect statistics
+
+ mb_stream_req                Files which have fewer blocks than this tunable
+                              parameter will have their blocks allocated out
+                              of a block group specific preallocation pool, so
+                              that small files are packed closely together.
+                              Each large file will have its blocks allocated
+                              out of its own unique preallocation pool.
+
+ session_write_kbytes         This file is read-only and shows the number of
+                              kilobytes of data that have been written to this
+                              filesystem since it was mounted.
+..............................................................................
+
+Ioctls
+======
+
+There is some Ext4 specific functionality which can be accessed by applications
+through the system call interfaces. The list of all Ext4 specific ioctls are
+shown in the table below.
+
+Table of Ext4 specific ioctls
+..............................................................................
+ Ioctl			      Description
+ EXT4_IOC_GETFLAGS	      Get additional attributes associated with inode.
+			      The ioctl argument is an integer bitfield, with
+			      bit values described in ext4.h. This ioctl is an
+			      alias for FS_IOC_GETFLAGS.
+
+ EXT4_IOC_SETFLAGS	      Set additional attributes associated with inode.
+			      The ioctl argument is an integer bitfield, with
+			      bit values described in ext4.h. This ioctl is an
+			      alias for FS_IOC_SETFLAGS.
+
+ EXT4_IOC_GETVERSION
+ EXT4_IOC_GETVERSION_OLD
+			      Get the inode i_generation number stored for
+			      each inode. The i_generation number is normally
+			      changed only when new inode is created and it is
+			      particularly useful for network filesystems. The
+			      '_OLD' version of this ioctl is an alias for
+			      FS_IOC_GETVERSION.
+
+ EXT4_IOC_SETVERSION
+ EXT4_IOC_SETVERSION_OLD
+			      Set the inode i_generation number stored for
+			      each inode. The '_OLD' version of this ioctl
+			      is an alias for FS_IOC_SETVERSION.
+
+ EXT4_IOC_GROUP_EXTEND	      This ioctl has the same purpose as the resize
+			      mount option. It allows to resize filesystem
+			      to the end of the last existing block group,
+			      further resize has to be done with resize2fs,
+			      either online, or offline. The argument points
+			      to the unsigned logn number representing the
+			      filesystem new block count.
+
+ EXT4_IOC_MOVE_EXT	      Move the block extents from orig_fd (the one
+			      this ioctl is pointing to) to the donor_fd (the
+			      one specified in move_extent structure passed
+			      as an argument to this ioctl). Then, exchange
+			      inode metadata between orig_fd and donor_fd.
+			      This is especially useful for online
+			      defragmentation, because the allocator has the
+			      opportunity to allocate moved blocks better,
+			      ideally into one contiguous extent.
+
+ EXT4_IOC_GROUP_ADD	      Add a new group descriptor to an existing or
+			      new group descriptor block. The new group
+			      descriptor is described by ext4_new_group_input
+			      structure, which is passed as an argument to
+			      this ioctl. This is especially useful in
+			      conjunction with EXT4_IOC_GROUP_EXTEND,
+			      which allows online resize of the filesystem
+			      to the end of the last existing block group.
+			      Those two ioctls combined is used in userspace
+			      online resize tool (e.g. resize2fs).
+
+ EXT4_IOC_MIGRATE	      This ioctl operates on the filesystem itself.
+			      It converts (migrates) ext3 indirect block mapped
+			      inode to ext4 extent mapped inode by walking
+			      through indirect block mapping of the original
+			      inode and converting contiguous block ranges
+			      into ext4 extents of the temporary inode. Then,
+			      inodes are swapped. This ioctl might help, when
+			      migrating from ext3 to ext4 filesystem, however
+			      suggestion is to create fresh ext4 filesystem
+			      and copy data from the backup. Note, that
+			      filesystem has to support extents for this ioctl
+			      to work.
+
+ EXT4_IOC_ALLOC_DA_BLKS	      Force all of the delay allocated blocks to be
+			      allocated to preserve application-expected ext3
+			      behaviour. Note that this will also start
+			      triggering a write of the data blocks, but this
+			      behaviour may change in the future as it is
+			      not necessary and has been done this way only
+			      for sake of simplicity.
+..............................................................................
+
 References
 ==========
 
diff --git a/Documentation/filesystems/gfs2-uevents.txt b/Documentation/filesystems/gfs2-uevents.txt
index fd966dc9979a..d81889669293 100644
--- a/Documentation/filesystems/gfs2-uevents.txt
+++ b/Documentation/filesystems/gfs2-uevents.txt
@@ -62,7 +62,7 @@ be fixed.
 
 The REMOVE uevent is generated at the end of an unsuccessful mount
 or at the end of a umount of the filesystem. All REMOVE uevents will
-have been preceeded by at least an ADD uevent for the same fileystem,
+have been preceded by at least an ADD uevent for the same fileystem,
 and unlike the other uevents is generated automatically by the kernel's
 kobject subsystem.
 
diff --git a/Documentation/filesystems/gfs2.txt b/Documentation/filesystems/gfs2.txt
index 0b59c0200912..4cda926628aa 100644
--- a/Documentation/filesystems/gfs2.txt
+++ b/Documentation/filesystems/gfs2.txt
@@ -11,7 +11,7 @@ their I/O so file system consistency is maintained.  One of the nifty
 features of GFS is perfect consistency -- changes made to the file system
 on one machine show up immediately on all other machines in the cluster.
 
-GFS uses interchangable inter-node locking mechanisms, the currently
+GFS uses interchangeable inter-node locking mechanisms, the currently
 supported mechanisms are:
 
   lock_nolock -- allows gfs to be used as a local file system
diff --git a/Documentation/filesystems/ntfs.txt b/Documentation/filesystems/ntfs.txt
index 933bc66ccff1..791af8dac065 100644
--- a/Documentation/filesystems/ntfs.txt
+++ b/Documentation/filesystems/ntfs.txt
@@ -350,7 +350,7 @@ Note the "Should sync?" parameter "nosync" means that the two mirrors are
 already in sync which will be the case on a clean shutdown of Windows.  If the
 mirrors are not clean, you can specify the "sync" option instead of "nosync"
 and the Device-Mapper driver will then copy the entirety of the "Source Device"
-to the "Target Device" or if you specified multipled target devices to all of
+to the "Target Device" or if you specified multiple target devices to all of
 them.
 
 Once you have your table, save it in a file somewhere (e.g. /etc/ntfsvolume1),
diff --git a/Documentation/filesystems/ocfs2.txt b/Documentation/filesystems/ocfs2.txt
index 5393e6611691..9ed920a8cd79 100644
--- a/Documentation/filesystems/ocfs2.txt
+++ b/Documentation/filesystems/ocfs2.txt
@@ -80,7 +80,7 @@ user_xattr	(*)	Enables Extended User Attributes.
 nouser_xattr		Disables Extended User Attributes.
 acl			Enables POSIX Access Control Lists support.
 noacl		(*)	Disables POSIX Access Control Lists support.
-resv_level=2	(*)	Set how agressive allocation reservations will be.
+resv_level=2	(*)	Set how aggressive allocation reservations will be.
 			Valid values are between 0 (reservations off) to 8
 			(maximum space for reservations).
 dir_resv_level=	(*)	By default, directory reservations will scale with file
diff --git a/Documentation/filesystems/path-lookup.txt b/Documentation/filesystems/path-lookup.txt
index eb59c8b44be9..3571667c7105 100644
--- a/Documentation/filesystems/path-lookup.txt
+++ b/Documentation/filesystems/path-lookup.txt
@@ -42,7 +42,7 @@ Path walking overview
 A name string specifies a start (root directory, cwd, fd-relative) and a
 sequence of elements (directory entry names), which together refer to a path in
 the namespace. A path is represented as a (dentry, vfsmount) tuple. The name
-elements are sub-strings, seperated by '/'.
+elements are sub-strings, separated by '/'.
 
 Name lookups will want to find a particular path that a name string refers to
 (usually the final element, or parent of final element). This is done by taking
@@ -354,7 +354,7 @@ vfstest 24185492        4945    708725(2.9%) 1076136(4.4%)     0        2651
 
 What this shows is that failed rcu-walk lookups, ie. ones that are restarted
 entirely with ref-walk, are quite rare. Even the "vfstest" case which
-specifically has concurrent renames/mkdir/rmdir/ creat/unlink/etc to excercise
+specifically has concurrent renames/mkdir/rmdir/ creat/unlink/etc to exercise
 such races is not showing a huge amount of restarts.
 
 Dropping from rcu-walk to ref-walk mean that we have encountered a dentry where
diff --git a/Documentation/filesystems/pohmelfs/network_protocol.txt b/Documentation/filesystems/pohmelfs/network_protocol.txt
index 40ea6c295afb..65e03dd44823 100644
--- a/Documentation/filesystems/pohmelfs/network_protocol.txt
+++ b/Documentation/filesystems/pohmelfs/network_protocol.txt
@@ -20,7 +20,7 @@ Commands can be embedded into transaction command (which in turn has own command
 so one can extend protocol as needed without breaking backward compatibility as long
 as old commands are supported. All string lengths include tail 0 byte.
 
-All commans are transfered over the network in big-endian. CPU endianess is used at the end peers.
+All commands are transferred over the network in big-endian. CPU endianess is used at the end peers.
 
 @cmd - command number, which specifies command to be processed. Following
 	commands are used currently:
diff --git a/Documentation/filesystems/porting b/Documentation/filesystems/porting
index 0c986c9e8519..6e29954851a2 100644
--- a/Documentation/filesystems/porting
+++ b/Documentation/filesystems/porting
@@ -298,11 +298,14 @@ be used instead.  It gets called whenever the inode is evicted, whether it has
 remaining links or not.  Caller does *not* evict the pagecache or inode-associated
 metadata buffers; getting rid of those is responsibility of method, as it had
 been for ->delete_inode().
-	->drop_inode() returns int now; it's called on final iput() with inode_lock
-held and it returns true if filesystems wants the inode to be dropped.  As before,
-generic_drop_inode() is still the default and it's been updated appropriately.
-generic_delete_inode() is also alive and it consists simply of return 1.  Note that
-all actual eviction work is done by caller after ->drop_inode() returns.
+
+	->drop_inode() returns int now; it's called on final iput() with
+inode->i_lock held and it returns true if filesystems wants the inode to be
+dropped.  As before, generic_drop_inode() is still the default and it's been
+updated appropriately.  generic_delete_inode() is also alive and it consists
+simply of return 1.  Note that all actual eviction work is done by caller after
+->drop_inode() returns.
+
 	clear_inode() is gone; use end_writeback() instead.  As before, it must
 be called exactly once on each call of ->evict_inode() (as it used to be for
 each call of ->delete_inode()).  Unlike before, if you are using inode-associated
@@ -397,6 +400,9 @@ a file off.
 
 --
 [mandatory]
+
+--
+[mandatory]
 	->get_sb() is gone.  Switch to use of ->mount().  Typically it's just
 a matter of switching from calling get_sb_... to mount_... and changing the
 function type.  If you were doing it manually, just switch from setting ->mnt_root
diff --git a/Documentation/filesystems/proc.txt b/Documentation/filesystems/proc.txt
index 23cae6548d3a..b0b814d75ca1 100644
--- a/Documentation/filesystems/proc.txt
+++ b/Documentation/filesystems/proc.txt
@@ -543,7 +543,7 @@ just those considered 'most important'.  The new vectors are:
   their statistics are used by kernel developers and interested users to
   determine the occurrence of interrupts of the given type.
 
-The above IRQ vectors are displayed only when relevent.  For example,
+The above IRQ vectors are displayed only when relevant.  For example,
 the threshold vector does not exist on x86_64 platforms.  Others are
 suppressed when the system is a uniprocessor.  As of this writing, only
 i386 and x86_64 platforms support the new IRQ vector displays.
@@ -1202,7 +1202,7 @@ The columns are:
                        W = can do write operations
                        U = can do unblank
   flags                E = it is enabled
-                       C = it is prefered console
+                       C = it is preferred console
                        B = it is primary boot console
                        p = it is used for printk buffer
                        b = it is not a TTY but a Braille device
@@ -1331,7 +1331,7 @@ NOTICE: /proc/<pid>/oom_adj is deprecated and will be removed, please see
 Documentation/feature-removal-schedule.txt.
 
 Caveat: when a parent task is selected, the oom killer will sacrifice any first
-generation children with seperate address spaces instead, if possible.  This
+generation children with separate address spaces instead, if possible.  This
 avoids servers and important system daemons from being killed and loses the
 minimal amount of work.
 
diff --git a/Documentation/filesystems/squashfs.txt b/Documentation/filesystems/squashfs.txt
index 2d78f1911844..d4d41465a0b1 100644
--- a/Documentation/filesystems/squashfs.txt
+++ b/Documentation/filesystems/squashfs.txt
@@ -219,7 +219,7 @@ or if it is stored out of line (in which case the value field stores a
 reference to where the actual value is stored).  This allows large values
 to be stored out of line improving scanning and lookup performance and it
 also allows values to be de-duplicated, the value being stored once, and
-all other occurences holding an out of line reference to that value.
+all other occurrences holding an out of line reference to that value.
 
 The xattr lists are packed into compressed 8K metadata blocks.
 To reduce overhead in inodes, rather than storing the on-disk
diff --git a/Documentation/filesystems/sysfs.txt b/Documentation/filesystems/sysfs.txt
index f806e50aaa63..597f728e7b4e 100644
--- a/Documentation/filesystems/sysfs.txt
+++ b/Documentation/filesystems/sysfs.txt
@@ -62,7 +62,7 @@ values of the same type.
 
 Mixing types, expressing multiple lines of data, and doing fancy
 formatting of data is heavily frowned upon. Doing these things may get
-you publically humiliated and your code rewritten without notice. 
+you publicly humiliated and your code rewritten without notice. 
 
 
 An attribute definition is simply:
diff --git a/Documentation/filesystems/vfs.txt b/Documentation/filesystems/vfs.txt
index 306f0ae8df09..21a7dc467bba 100644
--- a/Documentation/filesystems/vfs.txt
+++ b/Documentation/filesystems/vfs.txt
@@ -97,7 +97,7 @@ functions:
 The passed struct file_system_type describes your filesystem. When a
 request is made to mount a filesystem onto a directory in your namespace,
 the VFS will call the appropriate mount() method for the specific
-filesystem.  New vfsmount refering to the tree returned by ->mount()
+filesystem.  New vfsmount referring to the tree returned by ->mount()
 will be attached to the mountpoint, so that when pathname resolution
 reaches the mountpoint it will jump into the root of that vfsmount.
 
@@ -254,7 +254,7 @@ or bottom half).
 	should be synchronous or not, not all filesystems check this flag.
 
   drop_inode: called when the last access to the inode is dropped,
-	with the inode_lock spinlock held.
+	with the inode->i_lock spinlock held.
 
 	This method should be either NULL (normal UNIX filesystem
 	semantics) or "generic_delete_inode" (for filesystems that do not
diff --git a/Documentation/filesystems/xfs-delayed-logging-design.txt b/Documentation/filesystems/xfs-delayed-logging-design.txt
index 5282e3e51413..2ce36439c09f 100644
--- a/Documentation/filesystems/xfs-delayed-logging-design.txt
+++ b/Documentation/filesystems/xfs-delayed-logging-design.txt
@@ -42,7 +42,7 @@ the aggregation of all the previous changes currently held only in the log.
 This relogging technique also allows objects to be moved forward in the log so
 that an object being relogged does not prevent the tail of the log from ever
 moving forward.  This can be seen in the table above by the changing
-(increasing) LSN of each subsquent transaction - the LSN is effectively a
+(increasing) LSN of each subsequent transaction - the LSN is effectively a
 direct encoding of the location in the log of the transaction.
 
 This relogging is also used to implement long-running, multiple-commit
@@ -338,7 +338,7 @@ the same time another transaction modifies the item and inserts the log item
 into the new CIL, then checkpoint transaction commit code cannot use log items
 to store the list of log vectors that need to be written into the transaction.
 Hence log vectors need to be able to be chained together to allow them to be
-detatched from the log items. That is, when the CIL is flushed the memory
+detached from the log items. That is, when the CIL is flushed the memory
 buffer and log vector attached to each log item needs to be attached to the
 checkpoint context so that the log item can be released. In diagrammatic form,
 the CIL would look like this before the flush:
@@ -577,7 +577,7 @@ only becomes unpinned when all the transactions complete and there are no
 pending transactions. Thus the pinning and unpinning of a log item is symmetric
 as there is a 1:1 relationship with transaction commit and log item completion.
 
-For delayed logging, however, we have an assymetric transaction commit to
+For delayed logging, however, we have an asymmetric transaction commit to
 completion relationship. Every time an object is relogged in the CIL it goes
 through the commit process without a corresponding completion being registered.
 That is, we now have a many-to-one relationship between transaction commit and
@@ -780,7 +780,7 @@ With delayed logging, there are new steps inserted into the life cycle:
 From this, it can be seen that the only life cycle differences between the two
 logging methods are in the middle of the life cycle - they still have the same
 beginning and end and execution constraints. The only differences are in the
-commiting of the log items to the log itself and the completion processing.
+committing of the log items to the log itself and the completion processing.
 Hence delayed logging should not introduce any constraints on log item
 behaviour, allocation or freeing that don't already exist.
 
diff --git a/Documentation/hwmon/abituguru b/Documentation/hwmon/abituguru
index 5eb3b9d5f0d5..915f32063a26 100644
--- a/Documentation/hwmon/abituguru
+++ b/Documentation/hwmon/abituguru
@@ -78,7 +78,7 @@ motherboards (most modern Abit motherboards).
 
 The first and second revision of the uGuru chip in reality is a Winbond
 W83L950D in disguise (despite Abit claiming it is "a new microprocessor
-designed by the ABIT Engineers"). Unfortunatly this doesn't help since the
+designed by the ABIT Engineers"). Unfortunately this doesn't help since the
 W83L950D is a generic microcontroller with a custom Abit application running
 on it.
 
diff --git a/Documentation/hwmon/abituguru-datasheet b/Documentation/hwmon/abituguru-datasheet
index d9251efdcec7..8d2be8a0b1e3 100644
--- a/Documentation/hwmon/abituguru-datasheet
+++ b/Documentation/hwmon/abituguru-datasheet
@@ -5,9 +5,9 @@ First of all, what I know about uGuru is no fact based on any help, hints or
 datasheet from Abit. The data I have got on uGuru have I assembled through
 my weak knowledge in "backwards engineering".
 And just for the record, you may have noticed uGuru isn't a chip developed by
-Abit, as they claim it to be. It's realy just an microprocessor (uC) created by
+Abit, as they claim it to be. It's really just an microprocessor (uC) created by
 Winbond (W83L950D). And no, reading the manual for this specific uC or
-mailing  Windbond for help won't give any usefull data about uGuru, as it is
+mailing  Windbond for help won't give any useful data about uGuru, as it is
 the program inside the uC that is responding to calls.
 
 Olle Sandberg <ollebull@gmail.com>, 2005-05-25
@@ -41,7 +41,7 @@ later on attached again data-port will hold 0x08, more about this later.
 
 After wider testing of the Linux kernel driver some variants of the uGuru have
 turned up which will hold 0x00 instead of 0xAC at the CMD port, thus we also
-have to test CMD for two different values. On these uGuru's DATA will initally
+have to test CMD for two different values. On these uGuru's DATA will initially
 hold 0x09 and will only hold 0x08 after reading CMD first, so CMD must be read
 first!
 
@@ -308,5 +308,5 @@ the voltage / clock programming out, I tried reading and only reading banks
 resulted in a _permanent_ reprogramming of the voltages, luckily I had the
 sensors part configured so that it would shutdown my system on any out of spec
 voltages which proprably safed my computer (after a reboot I managed to
-immediatly enter the bios and reload the defaults). This probably means that
+immediately enter the bios and reload the defaults). This probably means that
 the read/write cycle for the non sensor part is different from the sensor part.
diff --git a/Documentation/hwmon/abituguru3 b/Documentation/hwmon/abituguru3
index fa598aac22fa..a6ccfe4bb6aa 100644
--- a/Documentation/hwmon/abituguru3
+++ b/Documentation/hwmon/abituguru3
@@ -47,7 +47,7 @@ This driver supports the hardware monitoring features of the third revision of
 the Abit uGuru chip, found on recent Abit uGuru featuring motherboards.
 
 The 3rd revision of the uGuru chip in reality is a Winbond W83L951G.
-Unfortunatly this doesn't help since the W83L951G is a generic microcontroller
+Unfortunately this doesn't help since the W83L951G is a generic microcontroller
 with a custom Abit application running on it.
 
 Despite Abit not releasing any information regarding the uGuru revision 3,
diff --git a/Documentation/hwmon/f71882fg b/Documentation/hwmon/f71882fg
index 4d0bc70f1852..df02245d1419 100644
--- a/Documentation/hwmon/f71882fg
+++ b/Documentation/hwmon/f71882fg
@@ -2,6 +2,10 @@ Kernel driver f71882fg
 ======================
 
 Supported chips:
+  * Fintek F71808E
+    Prefix: 'f71808e'
+    Addresses scanned: none, address read from Super I/O config space
+    Datasheet: Not public
   * Fintek F71858FG
     Prefix: 'f71858fg'
     Addresses scanned: none, address read from Super I/O config space
@@ -26,10 +30,25 @@ Supported chips:
     Prefix: 'f71889ed'
     Addresses scanned: none, address read from Super I/O config space
     Datasheet: Should become available on the Fintek website soon
+  * Fintek F71889A
+    Prefix: 'f71889a'
+    Addresses scanned: none, address read from Super I/O config space
+    Datasheet: Should become available on the Fintek website soon
   * Fintek F8000
     Prefix: 'f8000'
     Addresses scanned: none, address read from Super I/O config space
     Datasheet: Not public
+  * Fintek F81801U
+    Prefix: 'f71889fg'
+    Addresses scanned: none, address read from Super I/O config space
+    Datasheet: Not public
+    Note: This is the 64-pin variant of the F71889FG, they have the
+	  same device ID and are fully compatible as far as hardware
+	  monitoring is concerned.
+  * Fintek F81865F
+    Prefix: 'f81865f'
+    Addresses scanned: none, address read from Super I/O config space
+    Datasheet: Available from the Fintek website
 
 Author: Hans de Goede <hdegoede@redhat.com>
 
diff --git a/Documentation/hwmon/pmbus b/Documentation/hwmon/pmbus
index f2d42e8bdf48..dc4933e96344 100644
--- a/Documentation/hwmon/pmbus
+++ b/Documentation/hwmon/pmbus
@@ -150,11 +150,11 @@ The following attributes are supported. Limits are read-write; all other
 attributes are read-only.
 
 inX_input		Measured voltage. From READ_VIN or READ_VOUT register.
-inX_min			Minumum Voltage.
+inX_min			Minimum Voltage.
 			From VIN_UV_WARN_LIMIT or VOUT_UV_WARN_LIMIT register.
 inX_max			Maximum voltage.
 			From VIN_OV_WARN_LIMIT or VOUT_OV_WARN_LIMIT register.
-inX_lcrit		Critical minumum Voltage.
+inX_lcrit		Critical minimum Voltage.
 			From VIN_UV_FAULT_LIMIT or VOUT_UV_FAULT_LIMIT register.
 inX_crit		Critical maximum voltage.
 			From VIN_OV_FAULT_LIMIT or VOUT_OV_FAULT_LIMIT register.
@@ -169,7 +169,7 @@ inX_label		"vin", "vcap", or "voutY"
 currX_input		Measured current. From READ_IIN or READ_IOUT register.
 currX_max		Maximum current.
 			From IIN_OC_WARN_LIMIT or IOUT_OC_WARN_LIMIT register.
-currX_lcrit		Critical minumum output current.
+currX_lcrit		Critical minimum output current.
 			From IOUT_UC_FAULT_LIMIT register.
 currX_crit		Critical maximum current.
 			From IIN_OC_FAULT_LIMIT or IOUT_OC_FAULT_LIMIT register.
diff --git a/Documentation/hwmon/sysfs-interface b/Documentation/hwmon/sysfs-interface
index 83a698773ade..8f63c244f1aa 100644
--- a/Documentation/hwmon/sysfs-interface
+++ b/Documentation/hwmon/sysfs-interface
@@ -579,7 +579,7 @@ channel should not be trusted.
 fan[1-*]_fault
 temp[1-*]_fault
 		Input fault condition
-		0: no fault occured
+		0: no fault occurred
 		1: fault condition
 		RO
 
diff --git a/Documentation/hwmon/w83781d b/Documentation/hwmon/w83781d
index ecbc1e4574b4..129b0a3b555b 100644
--- a/Documentation/hwmon/w83781d
+++ b/Documentation/hwmon/w83781d
@@ -403,7 +403,7 @@ found out the following values do work as a form of coarse pwm:
 
 0x80 - seems to turn fans off after some time(1-2 minutes)... might be
 some form of auto-fan-control based on temp? hmm (Qfan? this mobo is an
-old ASUS, it isn't marketed as Qfan. Maybe some beta pre-attemp at Qfan
+old ASUS, it isn't marketed as Qfan. Maybe some beta pre-attempt at Qfan
 that was dropped at the BIOS)
 0x81 - off
 0x82 - slightly "on-ner" than off, but my fans do not get to move. I can
diff --git a/Documentation/hwmon/w83791d b/Documentation/hwmon/w83791d
index 5663e491655c..90387c3540f7 100644
--- a/Documentation/hwmon/w83791d
+++ b/Documentation/hwmon/w83791d
@@ -93,7 +93,7 @@ The sysfs interface to the beep bitmask has migrated from the original legacy
 method of a single sysfs beep_mask file to a newer method using multiple
 *_beep files as described in .../Documentation/hwmon/sysfs-interface.
 
-A similar change has occured for the bitmap corresponding to the alarms. The
+A similar change has occurred for the bitmap corresponding to the alarms. The
 original legacy method used a single sysfs alarms file containing a bitmap
 of triggered alarms. The newer method uses multiple sysfs *_alarm files
 (again following the pattern described in sysfs-interface).
diff --git a/Documentation/i2c/busses/i2c-parport-light b/Documentation/i2c/busses/i2c-parport-light
index bdc9cbb2e0f2..c22ee063e1e5 100644
--- a/Documentation/i2c/busses/i2c-parport-light
+++ b/Documentation/i2c/busses/i2c-parport-light
@@ -4,7 +4,7 @@ Author: Jean Delvare <khali@linux-fr.org>
 
 This driver is a light version of i2c-parport. It doesn't depend        
 on the parport driver, and uses direct I/O access instead. This might be
-prefered on embedded systems where wasting memory for the clean but heavy
+preferred on embedded systems where wasting memory for the clean but heavy
 parport handling is not an option. The drawback is a reduced portability
 and the impossibility to daisy-chain other parallel port devices.                 
   
diff --git a/Documentation/i2c/busses/i2c-sis96x b/Documentation/i2c/busses/i2c-sis96x
index 70e6a0cc1e15..0b979f3252a4 100644
--- a/Documentation/i2c/busses/i2c-sis96x
+++ b/Documentation/i2c/busses/i2c-sis96x
@@ -35,7 +35,7 @@ or perhaps this...
 
 (kernel versions later than 2.4.18 may fill in the "Unknown"s)
 
-If you cant see it please look on quirk_sis_96x_smbus
+If you can't see it please look on quirk_sis_96x_smbus
 (drivers/pci/quirks.c) (also if southbridge detection fails)
 
 I suspect that this driver could be made to work for the following SiS
diff --git a/Documentation/i2c/busses/i2c-taos-evm b/Documentation/i2c/busses/i2c-taos-evm
index 9146e33be6dd..63f62bcbf592 100644
--- a/Documentation/i2c/busses/i2c-taos-evm
+++ b/Documentation/i2c/busses/i2c-taos-evm
@@ -13,7 +13,7 @@ Currently supported devices are:
 
 * TAOS TSL2550 EVM
 
-For addtional information on TAOS products, please see
+For additional information on TAOS products, please see
   http://www.taosinc.com/
 
 
diff --git a/Documentation/i2o/README b/Documentation/i2o/README
index 0ebf58c73f54..ee91e2626ff0 100644
--- a/Documentation/i2o/README
+++ b/Documentation/i2o/README
@@ -53,7 +53,7 @@ Symbios Logic (Now LSI)
 BoxHill Corporation
 	Loan of initial FibreChannel disk array used for development work.
 
-European Comission
+European Commission
 	Funding the work done by the University of Helsinki
 
 SysKonnect
diff --git a/Documentation/ia64/aliasing-test.c b/Documentation/ia64/aliasing-test.c
index 3dfb76ca6931..5caa2af33207 100644
--- a/Documentation/ia64/aliasing-test.c
+++ b/Documentation/ia64/aliasing-test.c
@@ -177,7 +177,7 @@ static int scan_rom(char *path, char *file)
 
 			/*
 			 * It's OK if the ROM is unreadable.  Maybe there
-			 * is no ROM, or some other error ocurred.  The
+			 * is no ROM, or some other error occurred.  The
 			 * important thing is that no MCA happened.
 			 */
 			if (rc > 0)
diff --git a/Documentation/input/joystick-parport.txt b/Documentation/input/joystick-parport.txt
index 1c856f32ff2c..56870c70a796 100644
--- a/Documentation/input/joystick-parport.txt
+++ b/Documentation/input/joystick-parport.txt
@@ -272,7 +272,7 @@ if you want to use gamecon.c.
 
   Also, the connection is a bit more complex. You'll need a bunch of diodes,
 and one pullup resistor. First, you connect the Directions and the button
-the same as for db9, however with the diodes inbetween.
+the same as for db9, however with the diodes between.
 
 	    Diodes
 (pin 2) -----|<|----> Up
diff --git a/Documentation/input/rotary-encoder.txt b/Documentation/input/rotary-encoder.txt
index 8b4129de1d2d..943e8f6f2b15 100644
--- a/Documentation/input/rotary-encoder.txt
+++ b/Documentation/input/rotary-encoder.txt
@@ -46,7 +46,7 @@ c) Falling edge on channel A, channel B in high state
 
 d) Falling edge on channel B, channel A in low state
 	Parking position. If the encoder enters this state, a full transition
-	should have happend, unless it flipped back on half the way. The
+	should have happened, unless it flipped back on half the way. The
 	'armed' state tells us about that.
 
 2. Platform requirements
diff --git a/Documentation/input/walkera0701.txt b/Documentation/input/walkera0701.txt
index 8f4289efc5c4..561385d38482 100644
--- a/Documentation/input/walkera0701.txt
+++ b/Documentation/input/walkera0701.txt
@@ -77,7 +77,7 @@ pulse length:
 
 24 bin+oct values + 1 bin value = 24*4+1 bits  = 97 bits
 
-(Warning, pulses on ACK ar inverted by transistor, irq is rised up on sync
+(Warning, pulses on ACK are inverted by transistor, irq is raised up on sync
 to bin change or octal value to bin change).
 
 Binary data representations:
diff --git a/Documentation/irqflags-tracing.txt b/Documentation/irqflags-tracing.txt
index 6a444877ee0b..67aa71e73035 100644
--- a/Documentation/irqflags-tracing.txt
+++ b/Documentation/irqflags-tracing.txt
@@ -53,5 +53,5 @@ implementation in an architecture: lockdep will detect that and will
 turn itself off. I.e. the lock validator will still be reliable. There
 should be no crashes due to irq-tracing bugs. (except if the assembly
 changes break other code by modifying conditions or registers that
-shouldnt be)
+shouldn't be)
 
diff --git a/Documentation/isdn/INTERFACE.CAPI b/Documentation/isdn/INTERFACE.CAPI
index 309eb5ed942b..1688b5a1fd77 100644
--- a/Documentation/isdn/INTERFACE.CAPI
+++ b/Documentation/isdn/INTERFACE.CAPI
@@ -240,7 +240,7 @@ Functions capi_cmsg2message() and capi_message2cmsg() are provided to convert
 messages between their transport encoding described in the CAPI 2.0 standard
 and their _cmsg structure representation. Note that capi_cmsg2message() does
 not know or check the size of its destination buffer. The caller must make
-sure it is big enough to accomodate the resulting CAPI message.
+sure it is big enough to accommodate the resulting CAPI message.
 
 
 5. Lower Layer Interface Functions
diff --git a/Documentation/kbuild/kbuild.txt b/Documentation/kbuild/kbuild.txt
index f1431d099fce..7c2a89ba674c 100644
--- a/Documentation/kbuild/kbuild.txt
+++ b/Documentation/kbuild/kbuild.txt
@@ -26,11 +26,11 @@ Additional options to the assembler (for built-in and modules).
 
 AFLAGS_MODULE
 --------------------------------------------------
-Addtional module specific options to use for $(AS).
+Additional module specific options to use for $(AS).
 
 AFLAGS_KERNEL
 --------------------------------------------------
-Addtional options for $(AS) when used for assembler
+Additional options for $(AS) when used for assembler
 code for code that is compiled as built-in.
 
 KCFLAGS
@@ -39,12 +39,12 @@ Additional options to the C compiler (for built-in and modules).
 
 CFLAGS_KERNEL
 --------------------------------------------------
-Addtional options for $(CC) when used to compile
+Additional options for $(CC) when used to compile
 code that is compiled as built-in.
 
 CFLAGS_MODULE
 --------------------------------------------------
-Addtional module specific options to use for $(CC).
+Additional module specific options to use for $(CC).
 
 LDFLAGS_MODULE
 --------------------------------------------------
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index c357a31411cd..cc85a9278190 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -699,7 +699,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 	ekgdboc=	[X86,KGDB] Allow early kernel console debugging
 			ekgdboc=kbd
 
-			This is desgined to be used in conjunction with
+			This is designed to be used in conjunction with
 			the boot argument: earlyprintk=vga
 
 	edd=		[EDD]
@@ -1832,15 +1832,17 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 				perfmon on Intel CPUs instead of the
 				CPU specific event set.
 
-	oops=panic	Always panic on oopses. Default is to just kill the process,
-			but there is a small probability of deadlocking the machine.
+	oops=panic	Always panic on oopses. Default is to just kill the
+			process, but there is a small probability of
+			deadlocking the machine.
 			This will also cause panics on machine check exceptions.
 			Useful together with panic=30 to trigger a reboot.
 
 	OSS		[HW,OSS]
 			See Documentation/sound/oss/oss-parameters.txt
 
-	panic=		[KNL] Kernel behaviour on panic
+	panic=		[KNL] Kernel behaviour on panic: delay <timeout>
+			seconds before rebooting
 			Format: <timeout>
 
 	parkbd.port=	[HW] Parallel port number the keyboard adapter is
@@ -2343,6 +2345,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 
 	softlockup_panic=
 			[KNL] Should the soft-lockup detector generate panics.
+			Format: <integer>
 
 	sonypi.*=	[HW] Sony Programmable I/O Control Device driver
 			See Documentation/sonypi.txt
@@ -2475,8 +2478,8 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 	topology=	[S390]
 			Format: {off | on}
 			Specify if the kernel should make use of the cpu
-			topology informations if the hardware supports these.
-			The scheduler will make use of these informations and
+			topology information if the hardware supports this.
+			The scheduler will make use of this information and
 			e.g. base its process migration decisions on it.
 			Default is on.
 
@@ -2529,8 +2532,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 			reported either.
 
 	unknown_nmi_panic
-			[X86]
-			Set unknown_nmi_panic=1 early on boot.
+			[X86] Cause panic on unknown NMI.
 
 	usbcore.autosuspend=
 			[USB] The autosuspend time delay (in seconds) used
diff --git a/Documentation/kmemleak.txt b/Documentation/kmemleak.txt
index 34f6638aa5ac..090e6ee04536 100644
--- a/Documentation/kmemleak.txt
+++ b/Documentation/kmemleak.txt
@@ -11,6 +11,7 @@ with the difference that the orphan objects are not freed but only
 reported via /sys/kernel/debug/kmemleak. A similar method is used by the
 Valgrind tool (memcheck --leak-check) to detect the memory leaks in
 user-space applications.
+Kmemleak is supported on x86, arm, powerpc, sparc, sh, microblaze and tile.
 
 Usage
 -----
@@ -178,5 +179,4 @@ block doesn't need to be freed (some cases in the init_call functions),
 the pointer is calculated by other methods than the usual container_of
 macro or the pointer is stored in a location not scanned by kmemleak.
 
-Page allocations and ioremap are not tracked. Only the ARM and x86
-architectures are currently supported.
+Page allocations and ioremap are not tracked.
diff --git a/Documentation/kvm/mmu.txt b/Documentation/kvm/mmu.txt
index 142cc5136650..f46aa58389ca 100644
--- a/Documentation/kvm/mmu.txt
+++ b/Documentation/kvm/mmu.txt
@@ -23,7 +23,7 @@ The mmu code attempts to satisfy the following requirements:
                and framebuffer-based displays
 - footprint:   keep the amount of pinned kernel memory low (most memory
                should be shrinkable)
-- reliablity:  avoid multipage or GFP_ATOMIC allocations
+- reliability:  avoid multipage or GFP_ATOMIC allocations
 
 Acronyms
 ========
diff --git a/Documentation/kvm/ppc-pv.txt b/Documentation/kvm/ppc-pv.txt
index a7f2244b3be9..3ab969c59046 100644
--- a/Documentation/kvm/ppc-pv.txt
+++ b/Documentation/kvm/ppc-pv.txt
@@ -136,7 +136,7 @@ Patched instructions
 ====================
 
 The "ld" and "std" instructions are transormed to "lwz" and "stw" instructions
-respectively on 32 bit systems with an added offset of 4 to accomodate for big
+respectively on 32 bit systems with an added offset of 4 to accommodate for big
 endianness.
 
 The following is a list of mapping the Linux kernel performs when running as
diff --git a/Documentation/kvm/timekeeping.txt b/Documentation/kvm/timekeeping.txt
index 0c5033a58c9e..df8946377cb6 100644
--- a/Documentation/kvm/timekeeping.txt
+++ b/Documentation/kvm/timekeeping.txt
@@ -81,7 +81,7 @@ Mode 0: Single Timeout.   This is a one-shot software timeout that counts down
  when the gate is high (always true for timers 0 and 1).  When the count
  reaches zero, the output goes high.
 
-Mode 1: Triggered One-shot.  The output is intially set high.  When the gate
+Mode 1: Triggered One-shot.  The output is initially set high.  When the gate
  line is set high, a countdown is initiated (which does not stop if the gate is
  lowered), during which the output is set low.  When the count reaches zero,
  the output goes high.
diff --git a/Documentation/laptops/asus-laptop.txt b/Documentation/laptops/asus-laptop.txt
index c1c5be84e4b1..803e51f6768b 100644
--- a/Documentation/laptops/asus-laptop.txt
+++ b/Documentation/laptops/asus-laptop.txt
@@ -61,7 +61,7 @@ Usage
   Hotkeys are also reported as input keys (like keyboards) you can check
   which key are supported using "xev" under X11.
 
-  You can get informations on the version of your DSDT table by reading the
+  You can get information on the version of your DSDT table by reading the
   /sys/devices/platform/asus-laptop/infos entry. If you have a question or a
   bug report to do, please include the output of this entry.
 
@@ -178,7 +178,7 @@ LED display
 -----------
 
   Some models like the W1N have a LED display that can be used to display
-  several informations.
+  several items of information.
 
   LED display works for the following models:
     W1000N
diff --git a/Documentation/laptops/sony-laptop.txt b/Documentation/laptops/sony-laptop.txt
index 23ce7d350d1a..2bd4e82e5d9f 100644
--- a/Documentation/laptops/sony-laptop.txt
+++ b/Documentation/laptops/sony-laptop.txt
@@ -14,7 +14,8 @@ Some models report hotkeys through the SNC or SPIC devices, such events are
 reported both through the ACPI subsystem as acpi events and through the INPUT
 subsystem. See the logs of acpid or /proc/acpi/event and
 /proc/bus/input/devices to find out what those events are and which input
-devices are created by the driver.
+devices are created by the driver. Additionally, loading the driver with the
+debug option will report all events in the kernel log.
 
 Backlight control:
 ------------------
@@ -64,6 +65,16 @@ powers off the sound card,
 	# echo "1" > /sys/devices/platform/sony-laptop/audiopower
 powers on the sound card.
 
+
+RFkill control:
+---------------
+More recent Vaio models expose a consistent set of ACPI methods to
+control radio frequency emitting devices. If you are a lucky owner of
+such a laptop you will find the necessary rfkill devices under
+/sys/class/rfkill. Check those starting with sony-* in
+	# grep . /sys/class/rfkill/*/{state,name}
+
+
 Development:
 ------------
 
@@ -75,8 +86,21 @@ pass the option 'debug=1'.
 REPEAT: DON'T DO THIS IF YOU DON'T LIKE RISKY BUSINESS.
 
 In your kernel logs you will find the list of all ACPI methods
-the SNC device has on your laptop. You can see the GCDP/GCDP methods
-used to pwer on/off the CD drive, but there are others.
+the SNC device has on your laptop.
+
+* For new models you will see a long list of meaningless method names,
+reading the DSDT table source should reveal that:
+(1) the SNC device uses an internal capability lookup table
+(2) SN00 is used to find values in the lookup table
+(3) SN06 and SN07 are used to call into the real methods based on
+    offsets you can obtain iterating the table using SN00
+(4) SN02 used to enable events.
+Some values in the capability lookup table are more or less known, see
+the code for all sony_call_snc_handle calls, others are more obscure.
+
+* For old models you can see the GCDP/GCDP methods used to pwer on/off
+the CD drive, but there are others and they are usually different from
+model to model.
 
 I HAVE NO IDEA WHAT THOSE METHODS DO.
 
@@ -108,9 +132,8 @@ Bugs/Limitations:
   laptop, including permanent damage.
 
 * The sony-laptop and sonypi drivers do not interact at all. In the
-  future, sonypi could use sony-laptop to do (part of) its business.
+  future, sonypi will be removed and replaced by sony-laptop.
 
 * spicctrl, which is the userspace tool used to communicate with the
-  sonypi driver (through /dev/sonypi) does not try to use the
-  sony-laptop driver. In the future, spicctrl could try sonypi first,
-  and if it isn't present, try sony-laptop instead.
+  sonypi driver (through /dev/sonypi) is deprecated as well since all
+  its features are now available under the sysfs tree via sony-laptop.
diff --git a/Documentation/leds/00-INDEX b/Documentation/leds/00-INDEX
new file mode 100644
index 000000000000..29f481df32c7
--- /dev/null
+++ b/Documentation/leds/00-INDEX
@@ -0,0 +1,8 @@
+leds-class.txt
+	- documents LED handling under Linux.
+leds-lp3944.txt
+	- notes on how to use the leds-lp3944 driver.
+leds-lp5521.txt
+	- notes on how to use the leds-lp5521 driver.
+leds-lp5523.txt
+	- notes on how to use the leds-lp5523 driver.
diff --git a/Documentation/leds-class.txt b/Documentation/leds/leds-class.txt
index 58b266bd1846..4996586e27e8 100644
--- a/Documentation/leds-class.txt
+++ b/Documentation/leds/leds-class.txt
@@ -95,4 +95,3 @@ There are a number of cases where a trigger might only be mappable to a
 particular LED (ACPI?). The addition of triggers provided by the LED driver
 should cover this option and be possible to add without breaking the
 current interface.
-
diff --git a/Documentation/leds-lp3944.txt b/Documentation/leds/leds-lp3944.txt
index c6eda18b15ef..c6eda18b15ef 100644
--- a/Documentation/leds-lp3944.txt
+++ b/Documentation/leds/leds-lp3944.txt
diff --git a/Documentation/media-framework.txt b/Documentation/media-framework.txt
index fd48add02cb0..76a2087db205 100644
--- a/Documentation/media-framework.txt
+++ b/Documentation/media-framework.txt
@@ -194,7 +194,7 @@ each pad.
 
 Links are represented by a struct media_link instance, defined in
 include/media/media-entity.h. Each entity stores all links originating at or
-targetting any of its pads in a links array. A given link is thus stored
+targeting any of its pads in a links array. A given link is thus stored
 twice, once in the source entity and once in the target entity. The array is
 pre-allocated and grows dynamically as needed.
 
@@ -348,6 +348,6 @@ a streaming entity. Links that can be modified while streaming must be marked
 with the MEDIA_LNK_FL_DYNAMIC flag.
 
 If other operations need to be disallowed on streaming entities (such as
-changing entities configuration parameters) drivers can explictly check the
+changing entities configuration parameters) drivers can explicitly check the
 media_entity stream_count field to find out if an entity is streaming. This
 operation must be done with the media_device graph_mutex held.
diff --git a/Documentation/mips/AU1xxx_IDE.README b/Documentation/mips/AU1xxx_IDE.README
index 8ace35ebdcd5..cc887ecfd6eb 100644
--- a/Documentation/mips/AU1xxx_IDE.README
+++ b/Documentation/mips/AU1xxx_IDE.README
@@ -39,13 +39,13 @@ Note: for more information, please refer "AMD Alchemy Au1200/Au1550 IDE
       Interface and Linux Device Driver" Application Note.
 
 
-FILES, CONFIGS AND COMPATABILITY
+FILES, CONFIGS AND COMPATIBILITY
 --------------------------------
 
 Two files are introduced:
 
   a) 'arch/mips/include/asm/mach-au1x00/au1xxx_ide.h'
-     containes : struct _auide_hwif
+     contains : struct _auide_hwif
                  timing parameters for PIO mode 0/1/2/3/4
                  timing parameters for MWDMA 0/1/2
 
diff --git a/Documentation/misc-devices/ics932s401 b/Documentation/misc-devices/ics932s401
index 07a739f406d8..bdac67ff6e3f 100644
--- a/Documentation/misc-devices/ics932s401
+++ b/Documentation/misc-devices/ics932s401
@@ -5,7 +5,7 @@ Supported chips:
   * IDT ICS932S401
     Prefix: 'ics932s401'
     Addresses scanned: I2C 0x69
-    Datasheet: Publically available at the IDT website
+    Datasheet: Publicly available at the IDT website
 
 Author: Darrick J. Wong
 
diff --git a/Documentation/networking/3c359.txt b/Documentation/networking/3c359.txt
index 4af8071a6d18..dadfe8147ab8 100644
--- a/Documentation/networking/3c359.txt
+++ b/Documentation/networking/3c359.txt
@@ -45,7 +45,7 @@ debugging messages on, that must be done by modified the source code.
 
 Variable MTU size:
 
-The driver can handle a MTU size upto either 4500 or 18000 depending upon 
+The driver can handle a MTU size up to either 4500 or 18000 depending upon 
 ring speed.  The driver also changes the size of the receive buffers as part
 of the mtu re-sizing, so if you set mtu = 18000, you will need to be able
 to allocate 16 * (sk_buff with 18000 buffer size) call it 18500 bytes per ring 
diff --git a/Documentation/networking/README.ipw2200 b/Documentation/networking/README.ipw2200
index 616a8e540b0b..b7658bed4906 100644
--- a/Documentation/networking/README.ipw2200
+++ b/Documentation/networking/README.ipw2200
@@ -256,7 +256,7 @@ You can set the debug level via:
 
 Where $VALUE would be a number in the case of this sysfs entry.  The 
 input to sysfs files does not have to be a number.  For example, the 
-firmware loader used by hotplug utilizes sysfs entries for transfering 
+firmware loader used by hotplug utilizes sysfs entries for transferring 
 the firmware image from user space into the driver.
 
 The Intel(R) PRO/Wireless 2915ABG Driver for Linux exposes sysfs entries 
diff --git a/Documentation/networking/batman-adv.txt b/Documentation/networking/batman-adv.txt
index 18afcd8afd51..ee496eb2f4a6 100644
--- a/Documentation/networking/batman-adv.txt
+++ b/Documentation/networking/batman-adv.txt
@@ -72,7 +72,7 @@ folder:
 #  fragmentation    gw_sel_class  vis_mode
 
 
-There is a special folder for debugging informations:
+There is a special folder for debugging information:
 
 #  ls /sys/kernel/debug/batman_adv/bat0/
 #  gateways     socket        transtable_global  vis_data
diff --git a/Documentation/networking/bonding.txt b/Documentation/networking/bonding.txt
index b36e741e94db..e27202bb8d75 100644
--- a/Documentation/networking/bonding.txt
+++ b/Documentation/networking/bonding.txt
@@ -368,7 +368,7 @@ fail_over_mac
 		gratuitous ARP is lost, communication may be
 		disrupted.
 
-		When this policy is used in conjuction with the mii
+		When this policy is used in conjunction with the mii
 		monitor, devices which assert link up prior to being
 		able to actually transmit and receive are particularly
 		susceptible to loss of the gratuitous ARP, and an
diff --git a/Documentation/networking/caif/Linux-CAIF.txt b/Documentation/networking/caif/Linux-CAIF.txt
index 7fe7a9a33a4f..e52fd62bef3a 100644
--- a/Documentation/networking/caif/Linux-CAIF.txt
+++ b/Documentation/networking/caif/Linux-CAIF.txt
@@ -136,7 +136,7 @@ The CAIF Protocol implementation contains:
       - CFMUX CAIF Mux layer. Handles multiplexing between multiple
 	physical bearers and multiple channels such as VEI, Datagram, etc.
 	The MUX keeps track of the existing CAIF Channels and
-	Physical Instances and selects the apropriate instance based
+	Physical Instances and selects the appropriate instance based
 	on Channel-Id and Physical-ID.
 
       - CFFRML CAIF Framing layer. Handles Framing i.e. Frame length
diff --git a/Documentation/networking/caif/spi_porting.txt b/Documentation/networking/caif/spi_porting.txt
index 0cb8cb9098f4..9efd0687dc4c 100644
--- a/Documentation/networking/caif/spi_porting.txt
+++ b/Documentation/networking/caif/spi_porting.txt
@@ -150,7 +150,7 @@ static int sspi_init_xfer(struct cfspi_xfer *xfer, struct cfspi_dev *dev)
 void sspi_sig_xfer(bool xfer, struct cfspi_dev *dev)
 {
 	/* If xfer is true then you should assert the SPI_INT to indicate to
-	 * the master that you are ready to recieve the data from the master
+	 * the master that you are ready to receive the data from the master
 	 * SPI. If xfer is false then you should de-assert SPI_INT to indicate
 	 * that the transfer is done.
 	 */
diff --git a/Documentation/networking/can.txt b/Documentation/networking/can.txt
index 5b04b67ddca2..56ca3b75376e 100644
--- a/Documentation/networking/can.txt
+++ b/Documentation/networking/can.txt
@@ -240,7 +240,7 @@ solution for a couple of reasons:
   the user application using the common CAN filter mechanisms. Inside
   this filter definition the (interested) type of errors may be
   selected. The reception of error frames is disabled by default.
-  The format of the CAN error frame is briefly decribed in the Linux
+  The format of the CAN error frame is briefly described in the Linux
   header file "include/linux/can/error.h".
 
 4. How to use Socket CAN
diff --git a/Documentation/networking/ieee802154.txt b/Documentation/networking/ieee802154.txt
index 23c995e64032..f41ea2405220 100644
--- a/Documentation/networking/ieee802154.txt
+++ b/Documentation/networking/ieee802154.txt
@@ -9,7 +9,7 @@ The Linux-ZigBee project goal is to provide complete implementation
 of IEEE 802.15.4 / ZigBee / 6LoWPAN protocols. IEEE 802.15.4 is a stack
 of protocols for organizing Low-Rate Wireless Personal Area Networks.
 
-Currently only IEEE 802.15.4 layer is implemented. We have choosen
+Currently only IEEE 802.15.4 layer is implemented. We have chosen
 to use plain Berkeley socket API, the generic Linux networking stack
 to transfer IEEE 802.15.4 messages and a special protocol over genetlink
 for configuration/management
diff --git a/Documentation/networking/olympic.txt b/Documentation/networking/olympic.txt
index c65a94010ea8..b95b5bf96751 100644
--- a/Documentation/networking/olympic.txt
+++ b/Documentation/networking/olympic.txt
@@ -65,7 +65,7 @@ together.
 
 Variable MTU size:
 
-The driver can handle a MTU size upto either 4500 or 18000 depending upon 
+The driver can handle a MTU size up to either 4500 or 18000 depending upon 
 ring speed.  The driver also changes the size of the receive buffers as part
 of the mtu re-sizing, so if you set mtu = 18000, you will need to be able
 to allocate 16 * (sk_buff with 18000 buffer size) call it 18500 bytes per ring 
diff --git a/Documentation/networking/packet_mmap.txt b/Documentation/networking/packet_mmap.txt
index 073894d1c093..4acea6603720 100644
--- a/Documentation/networking/packet_mmap.txt
+++ b/Documentation/networking/packet_mmap.txt
@@ -223,7 +223,7 @@ we will get the following buffer structure:
 
 A frame can be of any size with the only condition it can fit in a block. A block
 can only hold an integer number of frames, or in other words, a frame cannot 
-be spawned accross two blocks, so there are some details you have to take into 
+be spawned across two blocks, so there are some details you have to take into 
 account when choosing the frame_size. See "Mapping and use of the circular 
 buffer (ring)".
 
diff --git a/Documentation/networking/s2io.txt b/Documentation/networking/s2io.txt
index 9d4e0f4df5a8..4be0c039edbc 100644
--- a/Documentation/networking/s2io.txt
+++ b/Documentation/networking/s2io.txt
@@ -37,7 +37,7 @@ To associate an interface with a physical adapter use "ethtool -p <ethX>".
 The corresponding adapter's LED will blink multiple times.
 
 3.	Features supported:
-a. Jumbo frames. Xframe I/II supports MTU upto 9600 bytes,
+a. Jumbo frames. Xframe I/II supports MTU up to 9600 bytes,
 modifiable using ifconfig command.
 
 b. Offloads. Supports checksum offload(TCP/UDP/IP) on transmit
@@ -49,7 +49,7 @@ significant performance improvement on certain platforms(SGI Altix,
 IBM xSeries).
 
 d. MSI/MSI-X. Can be enabled on platforms which support this feature
-(IA64, Xeon) resulting in noticeable performance improvement(upto 7%
+(IA64, Xeon) resulting in noticeable performance improvement(up to 7%
 on certain platforms).
 
 e. Statistics. Comprehensive MAC-level and software statistics displayed
diff --git a/Documentation/networking/tc-actions-env-rules.txt b/Documentation/networking/tc-actions-env-rules.txt
index dcadf6f88e34..70d6cf608251 100644
--- a/Documentation/networking/tc-actions-env-rules.txt
+++ b/Documentation/networking/tc-actions-env-rules.txt
@@ -1,5 +1,5 @@
 
-The "enviromental" rules for authors of any new tc actions are:
+The "environmental" rules for authors of any new tc actions are:
 
 1) If you stealeth or borroweth any packet thou shalt be branching
 from the righteous path and thou shalt cloneth.
@@ -20,7 +20,7 @@ this way any action downstream can stomp on the packet.
 3) Dropping packets you don't own is a no-no. You simply return
 TC_ACT_SHOT to the caller and they will drop it.
 
-The "enviromental" rules for callers of actions (qdiscs etc) are:
+The "environmental" rules for callers of actions (qdiscs etc) are:
 
 *) Thou art responsible for freeing anything returned as being
 TC_ACT_SHOT/STOLEN/QUEUED. If none of TC_ACT_SHOT/STOLEN/QUEUED is
diff --git a/Documentation/power/devices.txt b/Documentation/power/devices.txt
index f023ba6bba62..1971bcf48a60 100644
--- a/Documentation/power/devices.txt
+++ b/Documentation/power/devices.txt
@@ -367,7 +367,7 @@ Drivers need to be able to handle hardware which has been reset since the
 suspend methods were called, for example by complete reinitialization.
 This may be the hardest part, and the one most protected by NDA'd documents
 and chip errata.  It's simplest if the hardware state hasn't changed since
-the suspend was carried out, but that can't be guaranteed (in fact, it ususally
+the suspend was carried out, but that can't be guaranteed (in fact, it usually
 is not the case).
 
 Drivers must also be prepared to notice that the device has been removed
diff --git a/Documentation/power/notifiers.txt b/Documentation/power/notifiers.txt
index ae1b7ec07684..cf980709122a 100644
--- a/Documentation/power/notifiers.txt
+++ b/Documentation/power/notifiers.txt
@@ -24,7 +24,7 @@ PM_HIBERNATION_PREPARE	The system is going to hibernate or suspend, tasks will
 			be frozen immediately.
 
 PM_POST_HIBERNATION	The system memory state has been restored from a
-			hibernation image or an error occured during the
+			hibernation image or an error occurred during the
 			hibernation.  Device drivers' .resume() callbacks have
 			been executed and tasks have been thawed.
 
@@ -38,7 +38,7 @@ PM_POST_RESTORE		An error occurred during the hibernation restore.
 
 PM_SUSPEND_PREPARE	The system is preparing for a suspend.
 
-PM_POST_SUSPEND		The system has just resumed or an error occured during
+PM_POST_SUSPEND		The system has just resumed or an error occurred during
 			the suspend.	Device drivers' .resume() callbacks have
 			been executed and tasks have been thawed.
 
diff --git a/Documentation/power/opp.txt b/Documentation/power/opp.txt
index cd445582d1f8..5ae70a12c1e2 100644
--- a/Documentation/power/opp.txt
+++ b/Documentation/power/opp.txt
@@ -178,7 +178,7 @@ opp_find_freq_ceil - Search for an available OPP which is *at least* the
 		if (!IS_ERR(opp))
 			soc_switch_to_freq_voltage(freq);
 		else
-			/* do something when we cant satisfy the req */
+			/* do something when we can't satisfy the req */
 		/* do other stuff */
 	 }
 
diff --git a/Documentation/power/swsusp.txt b/Documentation/power/swsusp.txt
index ea718891a665..ac190cf1963e 100644
--- a/Documentation/power/swsusp.txt
+++ b/Documentation/power/swsusp.txt
@@ -192,7 +192,7 @@ Q: There don't seem to be any generally useful behavioral
 distinctions between SUSPEND and FREEZE.
 
 A: Doing SUSPEND when you are asked to do FREEZE is always correct,
-but it may be unneccessarily slow. If you want your driver to stay simple,
+but it may be unnecessarily slow. If you want your driver to stay simple,
 slowness may not matter to you. It can always be fixed later.
 
 For devices like disk it does matter, you do not want to spindown for
@@ -237,7 +237,7 @@ disk. Whole sequence goes like
 
       running system, user asks for suspend-to-disk
 
-      user processes are stopped (in common case there are none, but with resume-from-initrd, noone knows)
+      user processes are stopped (in common case there are none, but with resume-from-initrd, no one knows)
 
       read image from disk
 
diff --git a/Documentation/power/userland-swsusp.txt b/Documentation/power/userland-swsusp.txt
index 81680f9f5909..1101bee4e822 100644
--- a/Documentation/power/userland-swsusp.txt
+++ b/Documentation/power/userland-swsusp.txt
@@ -98,7 +98,7 @@ SNAPSHOT_S2RAM - suspend to RAM; using this call causes the kernel to
 The device's read() operation can be used to transfer the snapshot image from
 the kernel.  It has the following limitations:
 - you cannot read() more than one virtual memory page at a time
-- read()s accross page boundaries are impossible (ie. if ypu read() 1/2 of
+- read()s across page boundaries are impossible (ie. if ypu read() 1/2 of
 	a page in the previous call, you will only be able to read()
 	_at_ _most_ 1/2 of the page in the next call)
 
@@ -137,7 +137,7 @@ mechanism and the userland utilities using the interface SHOULD use additional
 means, such as checksums, to ensure the integrity of the snapshot image.
 
 The suspending and resuming utilities MUST lock themselves in memory,
-preferrably using mlockall(), before calling SNAPSHOT_FREEZE.
+preferably using mlockall(), before calling SNAPSHOT_FREEZE.
 
 The suspending utility MUST check the value stored by SNAPSHOT_CREATE_IMAGE
 in the memory location pointed to by the last argument of ioctl() and proceed
@@ -147,7 +147,7 @@ in accordance with it:
 	(a)	The suspending utility MUST NOT close the snapshot device
 		_unless_ the whole suspend procedure is to be cancelled, in
 		which case, if the snapshot image has already been saved, the
-		suspending utility SHOULD destroy it, preferrably by zapping
+		suspending utility SHOULD destroy it, preferably by zapping
 		its header.  If the suspend is not to be cancelled, the
 		system MUST be powered off or rebooted after the snapshot
 		image has been saved.
diff --git a/Documentation/powerpc/hvcs.txt b/Documentation/powerpc/hvcs.txt
index 6d8be3468d7d..a730ca5a07f8 100644
--- a/Documentation/powerpc/hvcs.txt
+++ b/Documentation/powerpc/hvcs.txt
@@ -528,7 +528,7 @@ this driver assignment of hotplug added vty-servers may be in a different
 order than how they would be exposed on module load.  Rebooting or
 reloading the module after dynamic addition may result in the /dev/hvcs*
 and vty-server coupling changing if a vty-server adapter was added in a
-slot inbetween two other vty-server adapters.  Refer to the section above
+slot between two other vty-server adapters.  Refer to the section above
 on how to determine which vty-server goes with which /dev/hvcs* node.
 Hint; look at the sysfs "index" attribute for the vty-server.
 
diff --git a/Documentation/s390/Debugging390.txt b/Documentation/s390/Debugging390.txt
index 86f9f74b2b34..efe998becc5b 100644
--- a/Documentation/s390/Debugging390.txt
+++ b/Documentation/s390/Debugging390.txt
@@ -2273,7 +2273,7 @@ IP forwarding is on.
 There is a lot of useful info in here best found by going in & having a look around,
 so I'll take you through some entries I consider important.
 
-All the processes running on the machine have there own entry defined by
+All the processes running on the machine have their own entry defined by
 /proc/<pid>
 So lets have a look at the init process
 cd /proc/1
diff --git a/Documentation/scheduler/sched-design-CFS.txt b/Documentation/scheduler/sched-design-CFS.txt
index 8239ebbcddce..99961993257a 100644
--- a/Documentation/scheduler/sched-design-CFS.txt
+++ b/Documentation/scheduler/sched-design-CFS.txt
@@ -164,7 +164,7 @@ This is the (partial) list of the hooks:
    It puts the scheduling entity (task) into the red-black tree and
    increments the nr_running variable.
 
- - dequeue_tree(...)
+ - dequeue_task(...)
 
    When a task is no longer runnable, this function is called to keep the
    corresponding scheduling entity out of the red-black tree.  It decrements
@@ -195,11 +195,6 @@ This is the (partial) list of the hooks:
    This function is mostly called from time tick functions; it might lead to
    process switch.  This drives the running preemption.
 
- - task_new(...)
-
-   The core scheduler gives the scheduling module an opportunity to manage new
-   task startup.  The CFS scheduling module uses it for group scheduling, while
-   the scheduling module for a real-time task does not use it.
 
 
 
diff --git a/Documentation/scheduler/sched-domains.txt b/Documentation/scheduler/sched-domains.txt
index 373ceacc367e..b7ee379b651b 100644
--- a/Documentation/scheduler/sched-domains.txt
+++ b/Documentation/scheduler/sched-domains.txt
@@ -1,8 +1,7 @@
-Each CPU has a "base" scheduling domain (struct sched_domain). These are
-accessed via cpu_sched_domain(i) and this_sched_domain() macros. The domain
+Each CPU has a "base" scheduling domain (struct sched_domain). The domain
 hierarchy is built from these base domains via the ->parent pointer. ->parent
-MUST be NULL terminated, and domain structures should be per-CPU as they
-are locklessly updated.
+MUST be NULL terminated, and domain structures should be per-CPU as they are
+locklessly updated.
 
 Each scheduling domain spans a number of CPUs (stored in the ->span field).
 A domain's span MUST be a superset of it child's span (this restriction could
@@ -26,11 +25,26 @@ is treated as one entity. The load of a group is defined as the sum of the
 load of each of its member CPUs, and only when the load of a group becomes
 out of balance are tasks moved between groups.
 
-In kernel/sched.c, rebalance_tick is run periodically on each CPU. This
-function takes its CPU's base sched domain and checks to see if has reached
-its rebalance interval. If so, then it will run load_balance on that domain.
-rebalance_tick then checks the parent sched_domain (if it exists), and the
-parent of the parent and so forth.
+In kernel/sched.c, trigger_load_balance() is run periodically on each CPU
+through scheduler_tick(). It raises a softirq after the next regularly scheduled
+rebalancing event for the current runqueue has arrived. The actual load
+balancing workhorse, run_rebalance_domains()->rebalance_domains(), is then run
+in softirq context (SCHED_SOFTIRQ).
+
+The latter function takes two arguments: the current CPU and whether it was idle
+at the time the scheduler_tick() happened and iterates over all sched domains
+our CPU is on, starting from its base domain and going up the ->parent chain.
+While doing that, it checks to see if the current domain has exhausted its
+rebalance interval. If so, it runs load_balance() on that domain. It then checks
+the parent sched_domain (if it exists), and the parent of the parent and so
+forth.
+
+Initially, load_balance() finds the busiest group in the current sched domain.
+If it succeeds, it looks for the busiest runqueue of all the CPUs' runqueues in
+that group. If it manages to find such a runqueue, it locks both our initial
+CPU's runqueue and the newly found busiest one and starts moving tasks from it
+to our runqueue. The exact number of tasks amounts to an imbalance previously
+computed while iterating over this sched domain's groups.
 
 *** Implementing sched domains ***
 The "base" domain will "span" the first level of the hierarchy. In the case
diff --git a/Documentation/scsi/ChangeLog.lpfc b/Documentation/scsi/ChangeLog.lpfc
index 5e83769c6aa9..c56ec99d7b2f 100644
--- a/Documentation/scsi/ChangeLog.lpfc
+++ b/Documentation/scsi/ChangeLog.lpfc
@@ -352,7 +352,7 @@ Changes from 20041229 to 20050110
 	  lpfc_scsiport.c
 	* In remote port changes: no longer nulling target->pnode when
 	  removing from mapped list. Pnode get nulled when the node is
-	  freed (after nodev tmo). This bug was causing i/o recieved in
+	  freed (after nodev tmo). This bug was causing i/o received in
 	  the small window while the device was blocked to be errored w/
 	  did_no_connect. With the fix, it returns host_busy
 	  (per the pre-remote port changes).
@@ -530,7 +530,7 @@ Changes from 20041018 to 20041123
 	  coherent mappings.  Note: There are more consistent mappings
 	  that are using pci_dma_sync calls. Probably these should be
 	  removed as well.
-	* Modified lpfc_free_scsi_buf to accomodate all three scsi_buf
+	* Modified lpfc_free_scsi_buf to accommodate all three scsi_buf
 	  free types to alleviate miscellaneous panics with cable pull
 	  testing.
 	* Set hotplug to default 0 and lpfc_target_remove to not remove
@@ -583,7 +583,7 @@ Changes from 20041018 to 20041123
 	  included more than once.
 	* Replaced "set_current_state(TASK_UNINTERRUPTIBLE);
 	  schedule_timeout(timeout)" with "msleep(timeout)".
-	* Fixnode was loosing starget when rediscovered. We saw messages
+	* Fixnode was losing starget when rediscovered. We saw messages
 	  like: lpfc 0000:04:02.0: 0:0263 Cannot block scsi target as a
 	  result.  Moved starget field into struct lpfc_target which is
 	  referenced from the node.
@@ -604,7 +604,7 @@ Changes from 20041018 to 20041123
 	* Make 3 functions static: lpfc_get_hba_sym_node_name,
 	  lpfc_intr_prep and lpfc_setup_slim_access.  Move lpfc_intr_prep
 	  and lpfc_setup_slim_access so they're defined before being used.
-	* Remove an unecessary list_del() in lpfc_hbadisc.c.
+	* Remove an unnecessary list_del() in lpfc_hbadisc.c.
 	* Set nlp_state before calling lpfc_nlp_list() since this will
 	  potentially call fc_target_unblock which may cause a race in
 	  queuecommand by releasing host_lock.
@@ -753,7 +753,7 @@ Changes from 20040908 to 20040920
 	* Changed version number to 8.0.12
 	* Removed used #defines: DEFAULT_PCI_LATENCY_CLOCKS and
 	  PCI_LATENCY_VALUE from lpfc_hw.h.
-	* Changes to accomodate rnid.
+	* Changes to accommodate rnid.
 	* Fix RSCN handling so RSCN NS queries only effect NPorts found in
 	  RSCN data.
 	* If we rcv a plogi on a NPort queued up for discovery, clear the
@@ -813,7 +813,7 @@ Changes from 20040908 to 20040920
 	  counter instead, brd_no isn't reused anymore.  Also some tiny
 	  whitespace cleanups in surrounding code.
 	* Reorder functions in lpfc_els.c to remove need for prototypes.
-	* Removed unsed prototypes from lpfc_crtn.h -
+	* Removed unused prototypes from lpfc_crtn.h -
 	  lpfc_ip_timeout_handler, lpfc_read_pci and lpfc_revoke.
 	* Removed some unused prototypes from lpfc_crtn.h -
 	  lpfc_scsi_hba_reset, lpfc_scsi_issue_inqsn,
@@ -863,7 +863,7 @@ Changes from 20040823 to 20040908
 	* Minimal support for SCSI flat space addressing/volume set
 	  addressing.  Use 16 bits of LUN address so that flat
 	  addressing/VSA will work.
-	* Changed 2 occurences of if( 1 != f(x)) to if(f(x) != 1)
+	* Changed 2 occurrences of if( 1 != f(x)) to if(f(x) != 1)
 	* Drop include of lpfc_cfgparm.h.
 	* Reduce stack usage of lpfc_fdmi_cmd in lpfc_ct.c.
 	* Add minimum range checking property to /sys write/store
@@ -1449,7 +1449,7 @@ Changes from 20040402 to 20040409
 	* Removed lpfc_els_chk_latt from the lpfc_config_post function.
 	  lpfc_els_chk_latt will enable the link event interrupts when
 	  flogi is pending which causes two discovery state machines
-	  running parallely.
+	  running parallelly.
 	* Add pci_disable_device to unload path.
 	* Move lpfc_sleep_event from lpfc_fcp.c to lpfc_util_ioctl.c
 	* Call dma_map_single() & pci_map_single() directly instead of via
@@ -1590,7 +1590,7 @@ Changes from 20040326 to 20040402
 	  ELX_WRITE_HS ELX_WRITE_HA ELX_WRITE_CA ELX_READ_HC
 	  ELX_READ_HS ELX_READ_HA ELX_READ_CA ELX_READ_MB ELX_RESET
 	  ELX_READ_HBA ELX_INSTANCE ELX_LIP.  Also introduced
-	  attribute "set" to be used in conjuction with the above
+	  attribute "set" to be used in conjunction with the above
 	  attributes.
 	* Removed DLINK, enque and deque declarations now that clock
 	  doesn't use them anymore
diff --git a/Documentation/scsi/ChangeLog.megaraid b/Documentation/scsi/ChangeLog.megaraid
index 5e07d320817d..d2052fdbedd2 100644
--- a/Documentation/scsi/ChangeLog.megaraid
+++ b/Documentation/scsi/ChangeLog.megaraid
@@ -168,7 +168,7 @@ Older Version	: 2.20.4.6 (scsi module), 2.20.2.6 (cmm module)
 
 1.	Sorted out PCI IDs to remove megaraid support overlaps.
 	Based on the patch from Daniel, sorted out PCI IDs along with
-	charactor node name change from 'megadev' to 'megadev_legacy' to avoid
+	character node name change from 'megadev' to 'megadev_legacy' to avoid
 	conflict.
 	---
 	Hopefully we'll be getting the build restriction zapped much sooner, 
diff --git a/Documentation/scsi/ChangeLog.ncr53c8xx b/Documentation/scsi/ChangeLog.ncr53c8xx
index 8b278c10edfd..9288e3d8974a 100644
--- a/Documentation/scsi/ChangeLog.ncr53c8xx
+++ b/Documentation/scsi/ChangeLog.ncr53c8xx
@@ -200,7 +200,7 @@ Sun Feb  14:00 1999 Gerard Roudier (groudier@club-internet.fr)
 	  By default the driver uses both IRQF_SHARED and IRQF_DISABLED.
 	  Option 'ncr53c8xx=irqm:0x20' may be used when an IRQ is shared by 
 	  a 53C8XX adapter and a network board.
-	- Tiny mispelling fixed (ABORT instead of ABRT). Was fortunately 
+	- Tiny misspelling fixed (ABORT instead of ABRT). Was fortunately 
 	  harmless.
 	- Negotiate SYNC data transfers with CCS devices.
 
diff --git a/Documentation/scsi/ChangeLog.sym53c8xx b/Documentation/scsi/ChangeLog.sym53c8xx
index 02ffbc1e8a84..c1933707d0bc 100644
--- a/Documentation/scsi/ChangeLog.sym53c8xx
+++ b/Documentation/scsi/ChangeLog.sym53c8xx
@@ -457,7 +457,7 @@ Fri Jan  1  20:00 1999 Gerard Roudier (groudier@club-internet.fr)
 Sat Dec 19  21:00 1998 Gerard Roudier (groudier@club-internet.fr)
 	* version sym53c8xx-1.0
 	- Define some new IO registers for the 896 (istat1, mbox0, mbox1)
-	- Revamp slighly the Symbios NVRAM lay-out based on the excerpt of 
+	- Revamp slightly the Symbios NVRAM lay-out based on the excerpt of 
 	  the header file I received from Symbios.
 	- Check the PCI bus number for the boot order (Using a fast 
 	  PCI controller behing a PCI-PCI bridge seems sub-optimal).
diff --git a/Documentation/scsi/aha152x.txt b/Documentation/scsi/aha152x.txt
index 29ce6d87e451..94848734ac66 100644
--- a/Documentation/scsi/aha152x.txt
+++ b/Documentation/scsi/aha152x.txt
@@ -124,7 +124,7 @@ in the partition table and therefore every operating system has to know
 the right geometry to be able to interpret it.
 
 Moreover there are certain limitations to the C/H/S addressing scheme,
-namely the address space is limited to upto 255 heads, upto 63 sectors
+namely the address space is limited to up to 255 heads, up to 63 sectors
 and a maximum of 1023 cylinders.
 
 The AHA-1522 BIOS calculates the geometry by fixing the number of heads
diff --git a/Documentation/scsi/aic79xx.txt b/Documentation/scsi/aic79xx.txt
index 16e054c9c70b..64ac7093c872 100644
--- a/Documentation/scsi/aic79xx.txt
+++ b/Documentation/scsi/aic79xx.txt
@@ -267,7 +267,7 @@ The following information is available in this file:
               Option: tag_info:{{value[,value...]}[,{value[,value...]}...]}
           Definition: Set the per-target tagged queue depth on a
                       per controller basis.  Both controllers and targets
-                      may be ommitted indicating that they should retain
+                      may be omitted indicating that they should retain
                       the default tag depth.
             Examples: tag_info:{{16,32,32,64,8,8,,32,32,32,32,32,32,32,32,32}
                         On Controller 0
@@ -291,7 +291,7 @@ The following information is available in this file:
                       The rd_strm_bitmask is a 16 bit hex value in which
                       each bit represents a target.  Setting the target's
                       bit to '1' enables read streaming for that
-                      target.  Controllers may be ommitted indicating that
+                      target.  Controllers may be omitted indicating that
                       they should retain the default read streaming setting.
              Example: rd_strm:{0x0041}
                         On Controller 0
@@ -313,7 +313,7 @@ The following information is available in this file:
    -----------------------------------------------------------------
               Option: dv: {value[,value...]}
           Definition: Set Domain Validation Policy on a per-controller basis.
-                      Controllers may be ommitted indicating that
+                      Controllers may be omitted indicating that
                       they should retain the default read streaming setting.
              Example: dv:{-1,0,,1,1,0}
                         On Controller 0 leave DV at its default setting.
@@ -340,7 +340,7 @@ The following information is available in this file:
               Option: precomp: {value[,value...]}
           Definition: Set IO Cell precompensation value on a per-controller
                       basis.
-                      Controllers may be ommitted indicating that
+                      Controllers may be omitted indicating that
                       they should retain the default precompensation setting.
              Example: precomp:{0x1}
                         On Controller 0 set precompensation to 1.
@@ -353,7 +353,7 @@ The following information is available in this file:
    -----------------------------------------------------------------
               Option: slewrate: {value[,value...]}
           Definition: Set IO Cell slew rate on a per-controller basis.
-                      Controllers may be ommitted indicating that
+                      Controllers may be omitted indicating that
                       they should retain the default slew rate setting.
              Example: slewrate:{0x1}
                         On Controller 0 set slew rate to 1.
@@ -366,7 +366,7 @@ The following information is available in this file:
    -----------------------------------------------------------------
               Option: amplitude: {value[,value...]}
           Definition: Set IO Cell signal amplitude on a per-controller basis.
-                      Controllers may be ommitted indicating that
+                      Controllers may be omitted indicating that
                       they should retain the default read streaming setting.
              Example: amplitude:{0x1}
                         On Controller 0 set amplitude to 1.
diff --git a/Documentation/scsi/ibmmca.txt b/Documentation/scsi/ibmmca.txt
index 45d61ad8c6f7..ac41a9fcac77 100644
--- a/Documentation/scsi/ibmmca.txt
+++ b/Documentation/scsi/ibmmca.txt
@@ -303,7 +303,7 @@
    (scb) and calls a local function issue_cmd(), which writes a scb 
    command into subsystem I/O ports. Once the scb command is carried out, 
    the interrupt_handler() is invoked. If a device is determined to be 
-   existant and it has not assigned any ldn, it gets one dynamically.
+   existent and it has not assigned any ldn, it gets one dynamically.
    For this, the whole stuff is done in ibmmca_queuecommand().
 
    2.6 Abort & Reset Commands
@@ -741,7 +741,7 @@
       some error appeared, else it is undefined. Now, this is fixed. Before
       any SCB command gets queued, the tsb.dev_status is set to 0, so the 
       cmd->result won't screw up Linux higher level drivers.
-   2) The reset-function has slightly improved. This is still planed for 
+   2) The reset-function has slightly improved. This is still planned for 
       abort. During the abort and the reset function, no interrupts are 
       allowed. This is however quite hard to cope with, so the INT-status
       register is read. When the interrupt gets queued, one can find its
diff --git a/Documentation/scsi/scsi-changer.txt b/Documentation/scsi/scsi-changer.txt
index 032399b16a53..ade046ea7c17 100644
--- a/Documentation/scsi/scsi-changer.txt
+++ b/Documentation/scsi/scsi-changer.txt
@@ -102,7 +102,7 @@ Trouble?
 
 If you insmod the driver with "insmod debug=1", it will be verbose and
 prints a lot of stuff to the syslog.  Compiling the kernel with
-CONFIG_SCSI_CONSTANTS=y improves the quality of the error messages alot
+CONFIG_SCSI_CONSTANTS=y improves the quality of the error messages a lot
 because the kernel will translate the error codes into human-readable
 strings then.
 
diff --git a/Documentation/scsi/scsi_eh.txt b/Documentation/scsi/scsi_eh.txt
index 7acbebb17fa6..6ff16b620d84 100644
--- a/Documentation/scsi/scsi_eh.txt
+++ b/Documentation/scsi/scsi_eh.txt
@@ -290,7 +290,7 @@ scmd->allowed.
 	SCSI transports/LLDDs automatically acquire sense data on
 	command failures (autosense).  Autosense is recommended for
 	performance reasons and as sense information could get out of
-	sync inbetween occurrence of CHECK CONDITION and this action.
+	sync between occurrence of CHECK CONDITION and this action.
 
 	Note that if autosense is not supported, scmd->sense_buffer
 	contains invalid sense data when error-completing the scmd
diff --git a/Documentation/scsi/scsi_fc_transport.txt b/Documentation/scsi/scsi_fc_transport.txt
index e00192de4d1c..f79282fc48d7 100644
--- a/Documentation/scsi/scsi_fc_transport.txt
+++ b/Documentation/scsi/scsi_fc_transport.txt
@@ -291,7 +291,7 @@ Transport <-> LLDD Interfaces :
 Vport support by LLDD:
 
   The LLDD indicates support for vports by supplying a vport_create()
-  function in the transport template.  The presense of this function will
+  function in the transport template.  The presence of this function will
   cause the creation of the new attributes on the fc_host.  As part of
   the physical port completing its initialization relative to the
   transport, it should set the max_npiv_vports attribute to indicate the
diff --git a/Documentation/scsi/sym53c8xx_2.txt b/Documentation/scsi/sym53c8xx_2.txt
index 6f63b7989679..6af8f7a7770f 100644
--- a/Documentation/scsi/sym53c8xx_2.txt
+++ b/Documentation/scsi/sym53c8xx_2.txt
@@ -285,7 +285,7 @@ from the driver.
 
 7. Profiling information
 
-This driver does not provide profiling informations as did its predecessors.
+This driver does not provide profiling information as did its predecessors.
 This feature was not this useful and added complexity to the code. 
 As the driver code got more complex, I have decided to remove everything 
 that didn't seem actually useful.
diff --git a/Documentation/serial/moxa-smartio b/Documentation/serial/moxa-smartio
index d10443918684..5d2a33be0bd8 100644
--- a/Documentation/serial/moxa-smartio
+++ b/Documentation/serial/moxa-smartio
@@ -473,7 +473,7 @@ Content
    spd_normal	  Use  38.4kb  when  the application requests 38.4kb.
    spd_cust	  Use  the custom divisor to set the speed when  the
 		  application requests 38.4kb.
-   divisor	  This option set the custom divison.
+   divisor	  This option set the custom division.
    baud_base	  This option set the base baud rate.
 
 -----------------------------------------------------------------------------
diff --git a/Documentation/serial/n_gsm.txt b/Documentation/serial/n_gsm.txt
index 397f41a1f153..a5d91126a8f7 100644
--- a/Documentation/serial/n_gsm.txt
+++ b/Documentation/serial/n_gsm.txt
@@ -34,7 +34,7 @@ Major parts of the initialization program :
 	/* configure the serial port : speed, flow control ... */
 
 	/* send the AT commands to switch the modem to CMUX mode
-	   and check that it's succesful (should return OK) */
+	   and check that it's successful (should return OK) */
 	write(fd, "AT+CMUX=0\r", 10);
 
 	/* experience showed that some modems need some time before
diff --git a/Documentation/sound/alsa/ALSA-Configuration.txt b/Documentation/sound/alsa/ALSA-Configuration.txt
index 3c1eddd9fcc7..9822afb6313c 100644
--- a/Documentation/sound/alsa/ALSA-Configuration.txt
+++ b/Documentation/sound/alsa/ALSA-Configuration.txt
@@ -322,7 +322,7 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
     "port" needs to match the BASE ADDRESS jumper on the card (0x220 or 0x240)
     or the value stored in the card's EEPROM for cards that have an EEPROM and
     their "CONFIG MODE" jumper set to "EEPROM SETTING". The other values can
-    be choosen freely from the options enumerated above.
+    be chosen freely from the options enumerated above.
 
     If dma2 is specified and different from dma1, the card will operate in
     full-duplex mode. When dma1=3, only dma2=0 is valid and the only way to
@@ -356,7 +356,7 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
     "port" needs to match the BASE ADDRESS jumper on the card (0x220 or 0x240)
     or the value stored in the card's EEPROM for cards that have an EEPROM and
     their "CONFIG MODE" jumper set to "EEPROM SETTING". The other values can
-    be choosen freely from the options enumerated above.
+    be chosen freely from the options enumerated above.
 
     If dma2 is specified and different from dma1, the card will operate in
     full-duplex mode. When dma1=3, only dma2=0 is valid and the only way to
@@ -2229,7 +2229,7 @@ Proc interfaces (/proc/asound)
 
 /proc/asound/card#/pcm#[cp]/oss
 -------------------------------
-  String "erase" - erase all additional informations about OSS applications
+  String "erase" - erase all additional information about OSS applications
   String "<app_name> <fragments> <fragment_size> [<options>]"
 
    <app_name> - name of application with (higher priority) or without path
diff --git a/Documentation/sound/oss/AudioExcelDSP16 b/Documentation/sound/oss/AudioExcelDSP16
index c0f08922993b..e0dc0641b480 100644
--- a/Documentation/sound/oss/AudioExcelDSP16
+++ b/Documentation/sound/oss/AudioExcelDSP16
@@ -1,10 +1,10 @@
 Driver
 ------
 
-Informations about Audio Excel DSP 16 driver can be found in the source
+Information about Audio Excel DSP 16 driver can be found in the source
 file aedsp16.c
 Please, read the head of the source before using it. It contain useful
-informations.
+information.
 
 Configuration
 -------------
@@ -68,7 +68,7 @@ Sound cards supported
 This driver supports the SC-6000 and SC-6600 based Gallant's sound card.
 It don't support the Audio Excel DSP 16 III (try the SC-6600 code).
 I'm working on the III version of the card: if someone have useful
-informations about it, please let me know.
+information about it, please let me know.
 For all the non-supported audio cards, you have to boot MS-DOS (or WIN95)
 activating the audio card with the MS-DOS device driver, then you have to
 <ctrl>-<alt>-<del> and boot Linux.
diff --git a/Documentation/sound/oss/README.OSS b/Documentation/sound/oss/README.OSS
index c615debbf08d..4be259428a1c 100644
--- a/Documentation/sound/oss/README.OSS
+++ b/Documentation/sound/oss/README.OSS
@@ -1352,7 +1352,7 @@ OSS-mixer.
 The PCM20 contains a radio tuner, which is also controlled by
 ACI. This radio tuner is supported by the ACI driver together with the
 miropcm20.o module. Also the 7-band equalizer is integrated
-(limited by the OSS-design). Developement has started and maybe
+(limited by the OSS-design). Development has started and maybe
 finished for the RDS decoder on this card, too. You will be able to
 read RadioText, the Programme Service name, Programme TYpe and
 others. Even the v4l radio module benefits from it with a refined
diff --git a/Documentation/sound/oss/README.ymfsb b/Documentation/sound/oss/README.ymfsb
index af8a7d3a4e8e..b6b77906b58d 100644
--- a/Documentation/sound/oss/README.ymfsb
+++ b/Documentation/sound/oss/README.ymfsb
@@ -5,7 +5,7 @@ FIRST OF ALL
 ============
 
   This code references YAMAHA's sample codes and data sheets.
-  I respect and thank for all people they made open the informations
+  I respect and thank for all people they made open the information
   about YMF7xx cards.
 
   And this codes heavily based on Jeff Garzik <jgarzik@pobox.com>'s
diff --git a/Documentation/spi/pxa2xx b/Documentation/spi/pxa2xx
index 68a4fe3818a1..493dada57372 100644
--- a/Documentation/spi/pxa2xx
+++ b/Documentation/spi/pxa2xx
@@ -143,7 +143,7 @@ configured to use SSPFRM instead.
 NOTE: the SPI driver cannot control the chip select if SSPFRM is used, so the
 chipselect is dropped after each spi_transfer.  Most devices need chip select
 asserted around the complete message.  Use SSPFRM as a GPIO (through cs_control)
-to accomodate these chips.
+to accommodate these chips.
 
 
 NSSP SLAVE SAMPLE
diff --git a/Documentation/spi/spi-lm70llp b/Documentation/spi/spi-lm70llp
index 34a9cfd746bd..463f6d01fa15 100644
--- a/Documentation/spi/spi-lm70llp
+++ b/Documentation/spi/spi-lm70llp
@@ -46,7 +46,7 @@ The hardware interfacing on the LM70 LLP eval board is as follows:
 
 Note that since the LM70 uses a "3-wire" variant of SPI, the SI/SO pin
 is connected to both pin D7 (as Master Out) and Select (as Master In)
-using an arrangment that lets either the parport or the LM70 pull the
+using an arrangement that lets either the parport or the LM70 pull the
 pin low.  This can't be shared with true SPI devices, but other 3-wire
 devices might share the same SI/SO pin.
 
diff --git a/Documentation/target/tcm_mod_builder.py b/Documentation/target/tcm_mod_builder.py
index dbeb8a0d7175..7ef9b843d529 100755
--- a/Documentation/target/tcm_mod_builder.py
+++ b/Documentation/target/tcm_mod_builder.py
@@ -239,8 +239,8 @@ def tcm_mod_build_configfs(proto_ident, fabric_mod_dir_var, fabric_mod_name):
 	buf += "#include <target/target_core_configfs.h>\n"
 	buf += "#include <target/target_core_base.h>\n"
 	buf += "#include <target/configfs_macros.h>\n\n"
-	buf += "#include <" + fabric_mod_name + "_base.h>\n"
-	buf += "#include <" + fabric_mod_name + "_fabric.h>\n\n"
+	buf += "#include \"" + fabric_mod_name + "_base.h\"\n"
+	buf += "#include \"" + fabric_mod_name + "_fabric.h\"\n\n"
 
 	buf += "/* Local pointer to allocated TCM configfs fabric module */\n"
 	buf += "struct target_fabric_configfs *" + fabric_mod_name + "_fabric_configfs;\n\n"
@@ -289,6 +289,7 @@ def tcm_mod_build_configfs(proto_ident, fabric_mod_dir_var, fabric_mod_name):
 	buf += "{\n"
 	buf += "	struct " + fabric_mod_name + "_nacl *nacl = container_of(se_acl,\n"
 	buf += "				struct " + fabric_mod_name + "_nacl, se_node_acl);\n"
+	buf += "	core_tpg_del_initiator_node_acl(se_acl->se_tpg, se_acl, 1);\n"
 	buf += "	kfree(nacl);\n"
 	buf += "}\n\n"
 
@@ -583,9 +584,9 @@ def tcm_mod_dump_fabric_ops(proto_ident, fabric_mod_dir_var, fabric_mod_name):
 	buf += "#include <target/target_core_fabric_lib.h>\n"
 	buf += "#include <target/target_core_device.h>\n"
 	buf += "#include <target/target_core_tpg.h>\n"
-	buf += "#include <target/target_core_configfs.h>\n"
-	buf += "#include <" + fabric_mod_name + "_base.h>\n"
-	buf += "#include <" + fabric_mod_name + "_fabric.h>\n\n"
+	buf += "#include <target/target_core_configfs.h>\n\n"
+	buf += "#include \"" + fabric_mod_name + "_base.h\"\n"
+	buf += "#include \"" + fabric_mod_name + "_fabric.h\"\n\n"
 
 	buf += "int " + fabric_mod_name + "_check_true(struct se_portal_group *se_tpg)\n"
 	buf += "{\n"
@@ -973,14 +974,13 @@ def tcm_mod_dump_fabric_ops(proto_ident, fabric_mod_dir_var, fabric_mod_name):
 def tcm_mod_build_kbuild(fabric_mod_dir_var, fabric_mod_name):
 
 	buf = ""
-	f = fabric_mod_dir_var + "/Kbuild"
+	f = fabric_mod_dir_var + "/Makefile"
 	print "Writing file: " + f
 
 	p = open(f, 'w')
 	if not p:
 		tcm_mod_err("Unable to open file: " + f)
 
-	buf = "EXTRA_CFLAGS += -I$(srctree)/drivers/target/ -I$(srctree)/include/ -I$(srctree)/drivers/scsi/ -I$(srctree)/include/scsi/ -I$(srctree)/drivers/target/" + fabric_mod_name + "\n\n"
 	buf += fabric_mod_name + "-objs			:= " + fabric_mod_name + "_fabric.o \\\n"
 	buf += "					   " + fabric_mod_name + "_configfs.o\n"
 	buf += "obj-$(CONFIG_" + fabric_mod_name.upper() + ")		+= " + fabric_mod_name + ".o\n"
@@ -1018,7 +1018,7 @@ def tcm_mod_build_kconfig(fabric_mod_dir_var, fabric_mod_name):
 
 def tcm_mod_add_kbuild(tcm_dir, fabric_mod_name):
 	buf = "obj-$(CONFIG_" + fabric_mod_name.upper() + ")	+= " + fabric_mod_name.lower() + "/\n"
-	kbuild = tcm_dir + "/drivers/target/Kbuild"
+	kbuild = tcm_dir + "/drivers/target/Makefile"
 
 	f = open(kbuild, 'a')
 	f.write(buf)
@@ -1064,7 +1064,7 @@ def main(modname, proto_ident):
 	tcm_mod_build_kbuild(fabric_mod_dir, fabric_mod_name)
 	tcm_mod_build_kconfig(fabric_mod_dir, fabric_mod_name)
 
-	input = raw_input("Would you like to add " + fabric_mod_name + "to drivers/target/Kbuild..? [yes,no]: ")
+	input = raw_input("Would you like to add " + fabric_mod_name + "to drivers/target/Makefile..? [yes,no]: ")
 	if input == "yes" or input == "y":
 		tcm_mod_add_kbuild(tcm_dir, fabric_mod_name)
 
diff --git a/Documentation/telephony/ixj.txt b/Documentation/telephony/ixj.txt
index 4fb314d51702..db94fb6c5678 100644
--- a/Documentation/telephony/ixj.txt
+++ b/Documentation/telephony/ixj.txt
@@ -51,7 +51,7 @@ be removed to protect the rights of others.
 Specifically, very old Internet PhoneJACK cards have non-standard
 G.723.1 codecs (due to the early nature of the DSPs in those days).
 The auto-conversion code to bring those cards into compliance with
-todays standards is available as a binary only module to those people
+today's standards is available as a binary only module to those people
 needing it.  If you bought your card after 1997 or so, you are OK -
 it's only the very old cards that are affected.
 
diff --git a/Documentation/trace/ring-buffer-design.txt b/Documentation/trace/ring-buffer-design.txt
index d299ff31df57..7d350b496585 100644
--- a/Documentation/trace/ring-buffer-design.txt
+++ b/Documentation/trace/ring-buffer-design.txt
@@ -237,7 +237,7 @@ with the previous write.
       |written  |
       +---------+
       |written  |
-      +---------+  <--- next positon for write (current commit)
+      +---------+  <--- next position for write (current commit)
       | empty   |
       +---------+
 
diff --git a/Documentation/video4linux/README.pvrusb2 b/Documentation/video4linux/README.pvrusb2
index a747200fe67c..2137b589276b 100644
--- a/Documentation/video4linux/README.pvrusb2
+++ b/Documentation/video4linux/README.pvrusb2
@@ -172,7 +172,7 @@ Source file list / functional overview:
     to provide a streaming API usable by a read() system call style of
     I/O.  Right now this is the only layer on top of pvrusb2-io.[ch],
     however the underlying architecture here was intended to allow for
-    other styles of I/O to be implemented with additonal modules, like
+    other styles of I/O to be implemented with additional modules, like
     mmap()'ed buffers or something even more exotic.
 
   pvrusb2-main.c - This is the top level of the driver.  Module level
diff --git a/Documentation/video4linux/bttv/Insmod-options b/Documentation/video4linux/bttv/Insmod-options
index bbe3ed667d91..14c065fa23ef 100644
--- a/Documentation/video4linux/bttv/Insmod-options
+++ b/Documentation/video4linux/bttv/Insmod-options
@@ -1,5 +1,5 @@
 
-Note: "modinfo <module>" prints various informations about a kernel
+Note: "modinfo <module>" prints various information about a kernel
 module, among them a complete and up-to-date list of insmod options.
 This list tends to be outdated because it is updated manually ...
 
diff --git a/Documentation/video4linux/bttv/README b/Documentation/video4linux/bttv/README
index 3a367cdb664e..7cbf4fb6cf31 100644
--- a/Documentation/video4linux/bttv/README
+++ b/Documentation/video4linux/bttv/README
@@ -70,7 +70,7 @@ If you have trouble with some specific TV card, try to ask there
 instead of mailing me directly.  The chance that someone with the
 same card listens there is much higher...
 
-For problems with sound:  There are alot of different systems used
+For problems with sound:  There are a lot of different systems used
 for TV sound all over the world.  And there are also different chips
 which decode the audio signal.  Reports about sound problems ("stereo
 does'nt work") are pretty useless unless you include some details
diff --git a/Documentation/video4linux/bttv/README.freeze b/Documentation/video4linux/bttv/README.freeze
index 4259dccc8287..5eddfa076cfb 100644
--- a/Documentation/video4linux/bttv/README.freeze
+++ b/Documentation/video4linux/bttv/README.freeze
@@ -33,7 +33,7 @@ state is stuck.
 
 I've seen reports that bttv 0.7.x crashes whereas 0.8.x works rock solid
 for some people.  Thus probably a small buglet left somewhere in bttv
-0.7.x.  I have no idea where exactly, it works stable for me and alot of
+0.7.x.  I have no idea where exactly, it works stable for me and a lot of
 other people.  But in case you have problems with the 0.7.x versions you
 can give 0.8.x a try ...
 
diff --git a/Documentation/video4linux/bttv/Sound-FAQ b/Documentation/video4linux/bttv/Sound-FAQ
index 1e6328f91083..395f6c6fdd98 100644
--- a/Documentation/video4linux/bttv/Sound-FAQ
+++ b/Documentation/video4linux/bttv/Sound-FAQ
@@ -2,13 +2,13 @@
 bttv and sound mini howto
 =========================
 
-There are alot of different bt848/849/878/879 based boards available.
+There are a lot of different bt848/849/878/879 based boards available.
 Making video work often is not a big deal, because this is handled
 completely by the bt8xx chip, which is common on all boards.  But
 sound is handled in slightly different ways on each board.
 
 To handle the grabber boards correctly, there is a array tvcards[] in
-bttv-cards.c, which holds the informations required for each board.
+bttv-cards.c, which holds the information required for each board.
 Sound will work only, if the correct entry is used (for video it often
 makes no difference).  The bttv driver prints a line to the kernel
 log, telling which card type is used.  Like this one:
diff --git a/Documentation/video4linux/et61x251.txt b/Documentation/video4linux/et61x251.txt
index 1247566c4de3..e0cdae491858 100644
--- a/Documentation/video4linux/et61x251.txt
+++ b/Documentation/video4linux/et61x251.txt
@@ -191,10 +191,10 @@ Syntax:         <n>
 Description:    Debugging information level, from 0 to 3:
 		0 = none (use carefully)
 		1 = critical errors
-		2 = significant informations
+		2 = significant information
 		3 = more verbose messages
 		Level 3 is useful for testing only, when only one device
-		is used at the same time. It also shows some more informations
+		is used at the same time. It also shows some more information
 		about the hardware being detected. This module parameter can be
 		changed at runtime thanks to the /sys filesystem interface.
 Default:        2
diff --git a/Documentation/video4linux/pxa_camera.txt b/Documentation/video4linux/pxa_camera.txt
index 4f6d0ca01956..51ed1578b0e8 100644
--- a/Documentation/video4linux/pxa_camera.txt
+++ b/Documentation/video4linux/pxa_camera.txt
@@ -84,12 +84,12 @@ DMA usage
        transfer is not started. On "End Of Frame" interrupt, the irq handler
        starts the DMA chain.
      - capture of one videobuffer
-       The DMA chain starts transfering data into videobuffer RAM pages.
-       When all pages are transfered, the DMA irq is raised on "ENDINTR" status
+       The DMA chain starts transferring data into videobuffer RAM pages.
+       When all pages are transferred, the DMA irq is raised on "ENDINTR" status
      - finishing one videobuffer
        The DMA irq handler marks the videobuffer as "done", and removes it from
        the active running queue
-       Meanwhile, the next videobuffer (if there is one), is transfered by DMA
+       Meanwhile, the next videobuffer (if there is one), is transferred by DMA
      - finishing the last videobuffer
        On the DMA irq of the last videobuffer, the QCI is stopped.
 
@@ -101,7 +101,7 @@ DMA usage
 
      This structure is pointed by dma->sg_cpu.
      The descriptors are used as follows :
-      - desc-sg[i]: i-th descriptor, transfering the i-th sg
+      - desc-sg[i]: i-th descriptor, transferring the i-th sg
         element to the video buffer scatter gather
       - finisher: has ddadr=DADDR_STOP, dcmd=ENDIRQEN
       - linker: has ddadr= desc-sg[0] of next video buffer, dcmd=0
diff --git a/Documentation/video4linux/sn9c102.txt b/Documentation/video4linux/sn9c102.txt
index 73de4050d637..b4f67040403a 100644
--- a/Documentation/video4linux/sn9c102.txt
+++ b/Documentation/video4linux/sn9c102.txt
@@ -214,10 +214,10 @@ Syntax:         <n>
 Description:    Debugging information level, from 0 to 3:
 		0 = none (use carefully)
 		1 = critical errors
-		2 = significant informations
+		2 = significant information
 		3 = more verbose messages
 		Level 3 is useful for testing only. It also shows some more
-		informations about the hardware being detected.
+		information about the hardware being detected.
 		This parameter can be changed at runtime thanks to the /sys
 		filesystem interface.
 Default:        2
diff --git a/Documentation/video4linux/v4l2-framework.txt b/Documentation/video4linux/v4l2-framework.txt
index 3b15608ee070..cf21f7aae976 100644
--- a/Documentation/video4linux/v4l2-framework.txt
+++ b/Documentation/video4linux/v4l2-framework.txt
@@ -343,7 +343,7 @@ ignored. If you want to check for errors use this:
 	err = v4l2_device_call_until_err(v4l2_dev, 0, core, g_chip_ident, &chip);
 
 Any error except -ENOIOCTLCMD will exit the loop with that error. If no
-errors (except -ENOIOCTLCMD) occured, then 0 is returned.
+errors (except -ENOIOCTLCMD) occurred, then 0 is returned.
 
 The second argument to both calls is a group ID. If 0, then all subdevs are
 called. If non-zero, then only those whose group ID match that value will
diff --git a/Documentation/video4linux/w9968cf.txt b/Documentation/video4linux/w9968cf.txt
index 05138e8aea07..9649450f3b90 100644
--- a/Documentation/video4linux/w9968cf.txt
+++ b/Documentation/video4linux/w9968cf.txt
@@ -413,7 +413,7 @@ Syntax:         <n>
 Description:    Debugging information level, from 0 to 6:
 		0 = none (use carefully)
 		1 = critical errors
-		2 = significant informations
+		2 = significant information
 		3 = configuration or general messages
 		4 = warnings
 		5 = called functions
diff --git a/Documentation/video4linux/zc0301.txt b/Documentation/video4linux/zc0301.txt
index befdfdacdc5b..b41c83cf09f4 100644
--- a/Documentation/video4linux/zc0301.txt
+++ b/Documentation/video4linux/zc0301.txt
@@ -181,10 +181,10 @@ Syntax:         <n>
 Description:    Debugging information level, from 0 to 3:
 		0 = none (use carefully)
 		1 = critical errors
-		2 = significant informations
+		2 = significant information
 		3 = more verbose messages
 		Level 3 is useful for testing only, when only one device
-		is used at the same time. It also shows some more informations
+		is used at the same time. It also shows some information
 		about the hardware being detected. This module parameter can be
 		changed at runtime thanks to the /sys filesystem interface.
 Default:        2
@@ -261,7 +261,7 @@ the fingerprint is: '88E8 F32F 7244 68BA 3958  5D40 99DA 5D2A FCE6 35A4'.
 
 11. Credits
 ===========
-- Informations about the chip internals needed to enable the I2C protocol have
+- Information about the chip internals needed to enable the I2C protocol have
   been taken from the documentation of the ZC030x Video4Linux1 driver written
   by Andrew Birkett <andy@nobugs.org>;
 - The initialization values of the ZC0301 controller connected to the PAS202BCB
diff --git a/Documentation/vm/active_mm.txt b/Documentation/vm/active_mm.txt
index 4ee1f643d897..dbf45817405f 100644
--- a/Documentation/vm/active_mm.txt
+++ b/Documentation/vm/active_mm.txt
@@ -74,7 +74,7 @@ we have a user context", and is generally done by the page fault handler
 and things like that).
 
 Anyway, I put a pre-patch-2.3.13-1 on ftp.kernel.org just a moment ago,
-because it slightly changes the interfaces to accomodate the alpha (who
+because it slightly changes the interfaces to accommodate the alpha (who
 would have thought it, but the alpha actually ends up having one of the
 ugliest context switch codes - unlike the other architectures where the MM
 and register state is separate, the alpha PALcode joins the two, and you
diff --git a/Documentation/vm/hugetlbpage.txt b/Documentation/vm/hugetlbpage.txt
index 457634c1e03e..f8551b3879f8 100644
--- a/Documentation/vm/hugetlbpage.txt
+++ b/Documentation/vm/hugetlbpage.txt
@@ -72,7 +72,7 @@ number of huge pages requested.  This is the most reliable method of
 allocating huge pages as memory has not yet become fragmented.
 
 Some platforms support multiple huge page sizes.  To allocate huge pages
-of a specific size, one must preceed the huge pages boot command parameters
+of a specific size, one must precede the huge pages boot command parameters
 with a huge page size selection parameter "hugepagesz=<size>".  <size> must
 be specified in bytes with optional scale suffix [kKmMgG].  The default huge
 page size may be selected with the "default_hugepagesz=<size>" boot parameter.
diff --git a/Documentation/vm/overcommit-accounting b/Documentation/vm/overcommit-accounting
index 21c7b1f8f32b..706d7ed9d8d2 100644
--- a/Documentation/vm/overcommit-accounting
+++ b/Documentation/vm/overcommit-accounting
@@ -4,7 +4,7 @@ The Linux kernel supports the following overcommit handling modes
 		address space are refused. Used for a typical system. It
 		ensures a seriously wild allocation fails while allowing
 		overcommit to reduce swap usage.  root is allowed to 
-		allocate slighly more memory in this mode. This is the 
+		allocate slightly more memory in this mode. This is the 
 		default.
 
 1	-	Always overcommit. Appropriate for some scientific
diff --git a/Documentation/w1/slaves/w1_ds2423 b/Documentation/w1/slaves/w1_ds2423
index 90a65d23cf59..3f98b505a0ee 100644
--- a/Documentation/w1/slaves/w1_ds2423
+++ b/Documentation/w1/slaves/w1_ds2423
@@ -21,8 +21,8 @@ value and associated ram buffer is outpputed to own line.
 
 Each lines will contain the values of 42 bytes read from the counter and
 memory page along the crc=YES or NO for indicating whether the read operation
-was successfull and CRC matched.
-If the operation was successfull, there is also in the end of each line
+was successful and CRC matched.
+If the operation was successful, there is also in the end of each line
 a counter value expressed as an integer after c=
 
 Meaning of 42 bytes represented is following:
@@ -34,7 +34,7 @@ Meaning of 42 bytes represented is following:
  - crc=YES/NO indicating whether read was ok and crc matched
  - c=<int> current counter value
 
-example from the successfull read:
+example from the successful read:
 00 02 00 00 00 00 00 00 00 6d 38 00 ff ff 00 00 fe ff 00 00 ff ff 00 00 ff ff 00 00 ff ff 00 00 ff ff 00 00 ff ff 00 00 ff ff crc=YES c=2
 00 02 00 00 00 00 00 00 00 e0 1f 00 ff ff 00 00 ff ff 00 00 ff ff 00 00 ff ff 00 00 ff ff 00 00 ff ff 00 00 ff ff 00 00 ff ff crc=YES c=2
 00 29 c6 5d 18 00 00 00 00 04 37 00 ff ff 00 00 ff ff 00 00 ff ff 00 00 ff ff 00 00 ff ff 00 00 ff ff 00 00 ff ff 00 00 ff ff crc=YES c=408798761
diff --git a/Documentation/w1/w1.netlink b/Documentation/w1/w1.netlink
index 804445f745ed..f59a31965d50 100644
--- a/Documentation/w1/w1.netlink
+++ b/Documentation/w1/w1.netlink
@@ -81,7 +81,7 @@ which will contain list of all registered master ids in the following
 format:
 
 	cn_msg (CN_W1_IDX.CN_W1_VAL as id, len is equal to sizeof(struct
-	w1_netlink_msg) plus number of masters multipled by 4)
+	w1_netlink_msg) plus number of masters multiplied by 4)
 	w1_netlink_msg (type: W1_LIST_MASTERS, len is equal to
 		number of masters multiplied by 4 (u32 size))
 	id0 ... idN
diff --git a/Documentation/watchdog/hpwdt.txt b/Documentation/watchdog/hpwdt.txt
index 9c24d5ffbb06..9488078900e0 100644
--- a/Documentation/watchdog/hpwdt.txt
+++ b/Documentation/watchdog/hpwdt.txt
@@ -8,7 +8,7 @@ Last reviewed: 06/02/2009
  The HP iLO2 NMI Watchdog driver is a kernel module that provides basic
  watchdog functionality and the added benefit of NMI sourcing. Both the
  watchdog functionality and the NMI sourcing capability need to be enabled
- by the user. Remember that the two modes are not dependant on one another.
+ by the user. Remember that the two modes are not dependent on one another.
  A user can have the NMI sourcing without the watchdog timer and vice-versa.
 
  Watchdog functionality is enabled like any other common watchdog driver. That
diff --git a/MAINTAINERS b/MAINTAINERS
index 749f9cd38089..6b4b9cdec370 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -548,10 +548,8 @@ S:	Maintained
 F:	sound/aoa/
 
 APM DRIVER
-M:	Stephen Rothwell <sfr@canb.auug.org.au>
 L:	linux-laptop@vger.kernel.org
-W:	http://www.canb.auug.org.au/~sfr/
-S:	Supported
+S:	Orphan
 F:	arch/x86/kernel/apm_32.c
 F:	include/linux/apm_bios.h
 
@@ -1159,14 +1157,14 @@ S:	Maintained
 F:	Documentation/hwmon/asc7621
 F:	drivers/hwmon/asc7621.c
 
-ASUS ACPI EXTRAS DRIVER
+ASUS NOTEBOOKS AND EEEPC ACPI/WMI EXTRAS DRIVERS
 M:	Corentin Chary <corentincj@iksaif.net>
-M:	Karol Kozimor <sziwan@users.sourceforge.net>
 L:	acpi4asus-user@lists.sourceforge.net
 L:	platform-driver-x86@vger.kernel.org
 W:	http://acpi4asus.sf.net
 S:	Maintained
-F:	drivers/platform/x86/asus_acpi.c
+F:	drivers/platform/x86/asus*.c
+F:	drivers/platform/x86/eeepc*.c
 
 ASUS ASB100 HARDWARE MONITOR DRIVER
 M:	"Mark M. Hoffman" <mhoffman@lightlink.com>
@@ -1174,14 +1172,6 @@ L:	lm-sensors@lm-sensors.org
 S:	Maintained
 F:	drivers/hwmon/asb100.c
 
-ASUS LAPTOP EXTRAS DRIVER
-M:	Corentin Chary <corentincj@iksaif.net>
-L:	acpi4asus-user@lists.sourceforge.net
-L:	platform-driver-x86@vger.kernel.org
-W:	http://acpi4asus.sf.net
-S:	Maintained
-F:	drivers/platform/x86/asus-laptop.c
-
 ASYNCHRONOUS TRANSFERS/TRANSFORMS (IOAT) API
 M:	Dan Williams <dan.j.williams@intel.com>
 W:	http://sourceforge.net/projects/xscaleiop
@@ -2416,22 +2406,6 @@ T:	git git://git.alsa-project.org/alsa-kernel.git
 S:	Maintained
 F:	sound/usb/misc/ua101.c
 
-EEEPC LAPTOP EXTRAS DRIVER
-M:	Corentin Chary <corentincj@iksaif.net>
-L:	acpi4asus-user@lists.sourceforge.net
-L:	platform-driver-x86@vger.kernel.org
-W:	http://acpi4asus.sf.net
-S:	Maintained
-F:	drivers/platform/x86/eeepc-laptop.c
-
-EEEPC WMI EXTRAS DRIVER
-M:	Corentin Chary <corentincj@iksaif.net>
-L:	acpi4asus-user@lists.sourceforge.net
-L:	platform-driver-x86@vger.kernel.org
-W:	http://acpi4asus.sf.net
-S:	Maintained
-F:	drivers/platform/x86/eeepc-wmi.c
-
 EFIFB FRAMEBUFFER DRIVER
 L:	linux-fbdev@vger.kernel.org
 M:	Peter Jones <pjones@redhat.com>
@@ -5291,6 +5265,11 @@ S:	Maintained
 F:	drivers/mtd/nand/r852.c
 F:	drivers/mtd/nand/r852.h
 
+RICOH R5C592 MEMORYSTICK DRIVER
+M:	Maxim Levitsky <maximlevitsky@gmail.com>
+S:	Maintained
+F:	drivers/memstick/host/r592.*
+
 RISCOM8 DRIVER
 S:	Orphan
 F:	Documentation/serial/riscom8.txt
@@ -6628,6 +6607,7 @@ F:	drivers/media/video/zr364xx.c
 
 USER-MODE LINUX (UML)
 M:	Jeff Dike <jdike@addtoit.com>
+M:	Richard Weinberger <richard@nod.at>
 L:	user-mode-linux-devel@lists.sourceforge.net
 L:	user-mode-linux-user@lists.sourceforge.net
 W:	http://user-mode-linux.sourceforge.net
diff --git a/Makefile b/Makefile
index 7d4e9c8da729..8392b64079df 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 VERSION = 2
 PATCHLEVEL = 6
-SUBLEVEL = 38
-EXTRAVERSION =
+SUBLEVEL = 39
+EXTRAVERSION = -rc2
 NAME = Flesh-Eating Bats with Fangs
 
 # *DOCUMENTATION*
diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index cc31bec2e316..9808998cc073 100644
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -11,7 +11,7 @@ config ALPHA
 	select HAVE_GENERIC_HARDIRQS
 	select GENERIC_IRQ_PROBE
 	select AUTO_IRQ_AFFINITY if SMP
-	select GENERIC_HARDIRQS_NO_DEPRECATED
+	select GENERIC_IRQ_SHOW
 	help
 	  The Alpha is a 64-bit general-purpose processor designed and
 	  marketed by the Digital Equipment Corporation of blessed memory,
diff --git a/arch/alpha/include/asm/elf.h b/arch/alpha/include/asm/elf.h
index 9baae8afe8a3..da5449e22175 100644
--- a/arch/alpha/include/asm/elf.h
+++ b/arch/alpha/include/asm/elf.h
@@ -101,7 +101,7 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
 
 #define ELF_PLAT_INIT(_r, load_addr)	_r->r0 = 0
 
-/* The registers are layed out in pt_regs for PAL and syscall
+/* The registers are laid out in pt_regs for PAL and syscall
    convenience.  Re-order them for the linear elf_gregset_t.  */
 
 struct pt_regs;
diff --git a/arch/alpha/kernel/core_lca.c b/arch/alpha/kernel/core_lca.c
index 4843f6ec9f3a..cb2801cfd3df 100644
--- a/arch/alpha/kernel/core_lca.c
+++ b/arch/alpha/kernel/core_lca.c
@@ -133,7 +133,7 @@ conf_read(unsigned long addr)
 
 	local_irq_save(flags);
 
-	/* Reset status register to avoid loosing errors.  */
+	/* Reset status register to avoid losing errors.  */
 	stat0 = *(vulp)LCA_IOC_STAT0;
 	*(vulp)LCA_IOC_STAT0 = stat0;
 	mb();
@@ -170,7 +170,7 @@ conf_write(unsigned long addr, unsigned int value)
 
 	local_irq_save(flags);	/* avoid getting hit by machine check */
 
-	/* Reset status register to avoid loosing errors.  */
+	/* Reset status register to avoid losing errors.  */
 	stat0 = *(vulp)LCA_IOC_STAT0;
 	*(vulp)LCA_IOC_STAT0 = stat0;
 	mb();
diff --git a/arch/alpha/kernel/err_marvel.c b/arch/alpha/kernel/err_marvel.c
index 648ae88aeb8a..ae54ad91e18f 100644
--- a/arch/alpha/kernel/err_marvel.c
+++ b/arch/alpha/kernel/err_marvel.c
@@ -1027,7 +1027,7 @@ marvel_process_logout_frame(struct ev7_lf_subpackets *lf_subpackets, int print)
 	 * normal operation, dismiss them.
 	 *
 	 * Dismiss if:
-	 *	C_STAT		= 0x14 		(Error Reponse)
+	 *	C_STAT		= 0x14 		(Error Response)
 	 *	C_STS<3>	= 0    		(C_ADDR valid)
 	 *	C_ADDR<42>	= 1    		(I/O)
 	 *	C_ADDR<31:22>	= 111110xxb	(PCI Config space)
diff --git a/arch/alpha/kernel/irq.c b/arch/alpha/kernel/irq.c
index a19d60082299..381431a2d6d9 100644
--- a/arch/alpha/kernel/irq.c
+++ b/arch/alpha/kernel/irq.c
@@ -67,68 +67,21 @@ int irq_select_affinity(unsigned int irq)
 }
 #endif /* CONFIG_SMP */
 
-int
-show_interrupts(struct seq_file *p, void *v)
+int arch_show_interrupts(struct seq_file *p, int prec)
 {
 	int j;
-	int irq = *(loff_t *) v;
-	struct irqaction * action;
-	struct irq_desc *desc;
-	unsigned long flags;
 
 #ifdef CONFIG_SMP
-	if (irq == 0) {
-		seq_puts(p, "           ");
-		for_each_online_cpu(j)
-			seq_printf(p, "CPU%d       ", j);
-		seq_putc(p, '\n');
-	}
-#endif
-
-	if (irq < ACTUAL_NR_IRQS) {
-		desc = irq_to_desc(irq);
-
-		if (!desc)
-			return 0;
-
-		raw_spin_lock_irqsave(&desc->lock, flags);
-		action = desc->action;
-		if (!action) 
-			goto unlock;
-		seq_printf(p, "%3d: ", irq);
-#ifndef CONFIG_SMP
-		seq_printf(p, "%10u ", kstat_irqs(irq));
-#else
-		for_each_online_cpu(j)
-			seq_printf(p, "%10u ", kstat_irqs_cpu(irq, j));
+	seq_puts(p, "IPI: ");
+	for_each_online_cpu(j)
+		seq_printf(p, "%10lu ", cpu_data[j].ipi_count);
+	seq_putc(p, '\n');
 #endif
-		seq_printf(p, " %14s", get_irq_desc_chip(desc)->name);
-		seq_printf(p, "  %c%s",
-			(action->flags & IRQF_DISABLED)?'+':' ',
-			action->name);
-
-		for (action=action->next; action; action = action->next) {
-			seq_printf(p, ", %c%s",
-				  (action->flags & IRQF_DISABLED)?'+':' ',
-				   action->name);
-		}
-
-		seq_putc(p, '\n');
-unlock:
-		raw_spin_unlock_irqrestore(&desc->lock, flags);
-	} else if (irq == ACTUAL_NR_IRQS) {
-#ifdef CONFIG_SMP
-		seq_puts(p, "IPI: ");
-		for_each_online_cpu(j)
-			seq_printf(p, "%10lu ", cpu_data[j].ipi_count);
-		seq_putc(p, '\n');
-#endif
-		seq_puts(p, "PMI: ");
-		for_each_online_cpu(j)
-			seq_printf(p, "%10lu ", per_cpu(irq_pmi_count, j));
-		seq_puts(p, "          Performance Monitoring\n");
-		seq_printf(p, "ERR: %10lu\n", irq_err_count);
-	}
+	seq_puts(p, "PMI: ");
+	for_each_online_cpu(j)
+		seq_printf(p, "%10lu ", per_cpu(irq_pmi_count, j));
+	seq_puts(p, "          Performance Monitoring\n");
+	seq_printf(p, "ERR: %10lu\n", irq_err_count);
 	return 0;
 }
 
diff --git a/arch/alpha/kernel/irq_alpha.c b/arch/alpha/kernel/irq_alpha.c
index 411ca11d0a18..1479dc6ebd97 100644
--- a/arch/alpha/kernel/irq_alpha.c
+++ b/arch/alpha/kernel/irq_alpha.c
@@ -228,7 +228,7 @@ struct irqaction timer_irqaction = {
 void __init
 init_rtc_irq(void)
 {
-	set_irq_chip_and_handler_name(RTC_IRQ, &no_irq_chip,
+	irq_set_chip_and_handler_name(RTC_IRQ, &no_irq_chip,
 				      handle_simple_irq, "RTC");
 	setup_irq(RTC_IRQ, &timer_irqaction);
 }
diff --git a/arch/alpha/kernel/irq_i8259.c b/arch/alpha/kernel/irq_i8259.c
index c7cc9813e45f..e1861c77dabc 100644
--- a/arch/alpha/kernel/irq_i8259.c
+++ b/arch/alpha/kernel/irq_i8259.c
@@ -92,7 +92,7 @@ init_i8259a_irqs(void)
 	outb(0xff, 0xA1);	/* mask all of 8259A-2 */
 
 	for (i = 0; i < 16; i++) {
-		set_irq_chip_and_handler(i, &i8259a_irq_type, handle_level_irq);
+		irq_set_chip_and_handler(i, &i8259a_irq_type, handle_level_irq);
 	}
 
 	setup_irq(2, &cascade);
diff --git a/arch/alpha/kernel/irq_pyxis.c b/arch/alpha/kernel/irq_pyxis.c
index b30227fa7f5f..13c97a5b31e8 100644
--- a/arch/alpha/kernel/irq_pyxis.c
+++ b/arch/alpha/kernel/irq_pyxis.c
@@ -102,7 +102,7 @@ init_pyxis_irqs(unsigned long ignore_mask)
 	for (i = 16; i < 48; ++i) {
 		if ((ignore_mask >> i) & 1)
 			continue;
-		set_irq_chip_and_handler(i, &pyxis_irq_type, handle_level_irq);
+		irq_set_chip_and_handler(i, &pyxis_irq_type, handle_level_irq);
 		irq_set_status_flags(i, IRQ_LEVEL);
 	}
 
diff --git a/arch/alpha/kernel/irq_srm.c b/arch/alpha/kernel/irq_srm.c
index 82a47bba41c4..a79fa30e7552 100644
--- a/arch/alpha/kernel/irq_srm.c
+++ b/arch/alpha/kernel/irq_srm.c
@@ -51,7 +51,7 @@ init_srm_irqs(long max, unsigned long ignore_mask)
 	for (i = 16; i < max; ++i) {
 		if (i < 64 && ((ignore_mask >> i) & 1))
 			continue;
-		set_irq_chip_and_handler(i, &srm_irq_type, handle_level_irq);
+		irq_set_chip_and_handler(i, &srm_irq_type, handle_level_irq);
 		irq_set_status_flags(i, IRQ_LEVEL);
 	}
 }
diff --git a/arch/alpha/kernel/sys_alcor.c b/arch/alpha/kernel/sys_alcor.c
index 88d95e872f55..0e1439904cdb 100644
--- a/arch/alpha/kernel/sys_alcor.c
+++ b/arch/alpha/kernel/sys_alcor.c
@@ -125,7 +125,7 @@ alcor_init_irq(void)
 		   on while IRQ probing.  */
 		if (i >= 16+20 && i <= 16+30)
 			continue;
-		set_irq_chip_and_handler(i, &alcor_irq_type, handle_level_irq);
+		irq_set_chip_and_handler(i, &alcor_irq_type, handle_level_irq);
 		irq_set_status_flags(i, IRQ_LEVEL);
 	}
 	i8259a_irq_type.irq_ack = alcor_isa_mask_and_ack_irq;
diff --git a/arch/alpha/kernel/sys_cabriolet.c b/arch/alpha/kernel/sys_cabriolet.c
index 57eb6307bc27..c8c112d51584 100644
--- a/arch/alpha/kernel/sys_cabriolet.c
+++ b/arch/alpha/kernel/sys_cabriolet.c
@@ -105,8 +105,8 @@ common_init_irq(void (*srm_dev_int)(unsigned long v))
 		outb(0xff, 0x806);
 
 		for (i = 16; i < 35; ++i) {
-			set_irq_chip_and_handler(i, &cabriolet_irq_type,
-				handle_level_irq);
+			irq_set_chip_and_handler(i, &cabriolet_irq_type,
+						 handle_level_irq);
 			irq_set_status_flags(i, IRQ_LEVEL);
 		}
 	}
diff --git a/arch/alpha/kernel/sys_dp264.c b/arch/alpha/kernel/sys_dp264.c
index 481df4ecb651..5ac00fd4cd0c 100644
--- a/arch/alpha/kernel/sys_dp264.c
+++ b/arch/alpha/kernel/sys_dp264.c
@@ -270,7 +270,7 @@ init_tsunami_irqs(struct irq_chip * ops, int imin, int imax)
 {
 	long i;
 	for (i = imin; i <= imax; ++i) {
-		set_irq_chip_and_handler(i, ops, handle_level_irq);
+		irq_set_chip_and_handler(i, ops, handle_level_irq);
 		irq_set_status_flags(i, IRQ_LEVEL);
 	}
 }
diff --git a/arch/alpha/kernel/sys_eb64p.c b/arch/alpha/kernel/sys_eb64p.c
index 402e908ffb3e..a7a23b40eec5 100644
--- a/arch/alpha/kernel/sys_eb64p.c
+++ b/arch/alpha/kernel/sys_eb64p.c
@@ -118,7 +118,7 @@ eb64p_init_irq(void)
 	init_i8259a_irqs();
 
 	for (i = 16; i < 32; ++i) {
-		set_irq_chip_and_handler(i, &eb64p_irq_type, handle_level_irq);
+		irq_set_chip_and_handler(i, &eb64p_irq_type, handle_level_irq);
 		irq_set_status_flags(i, IRQ_LEVEL);
 	}
 
diff --git a/arch/alpha/kernel/sys_eiger.c b/arch/alpha/kernel/sys_eiger.c
index 0b44a54c1522..a60cd5b2621e 100644
--- a/arch/alpha/kernel/sys_eiger.c
+++ b/arch/alpha/kernel/sys_eiger.c
@@ -138,7 +138,7 @@ eiger_init_irq(void)
 	init_i8259a_irqs();
 
 	for (i = 16; i < 128; ++i) {
-		set_irq_chip_and_handler(i, &eiger_irq_type, handle_level_irq);
+		irq_set_chip_and_handler(i, &eiger_irq_type, handle_level_irq);
 		irq_set_status_flags(i, IRQ_LEVEL);
 	}
 }
diff --git a/arch/alpha/kernel/sys_jensen.c b/arch/alpha/kernel/sys_jensen.c
index 00341b75c8b2..7f1a87f176e2 100644
--- a/arch/alpha/kernel/sys_jensen.c
+++ b/arch/alpha/kernel/sys_jensen.c
@@ -171,11 +171,11 @@ jensen_init_irq(void)
 {
 	init_i8259a_irqs();
 
-	set_irq_chip_and_handler(1, &jensen_local_irq_type, handle_level_irq);
-	set_irq_chip_and_handler(4, &jensen_local_irq_type, handle_level_irq);
-	set_irq_chip_and_handler(3, &jensen_local_irq_type, handle_level_irq);
-	set_irq_chip_and_handler(7, &jensen_local_irq_type, handle_level_irq);
-	set_irq_chip_and_handler(9, &jensen_local_irq_type, handle_level_irq);
+	irq_set_chip_and_handler(1, &jensen_local_irq_type, handle_level_irq);
+	irq_set_chip_and_handler(4, &jensen_local_irq_type, handle_level_irq);
+	irq_set_chip_and_handler(3, &jensen_local_irq_type, handle_level_irq);
+	irq_set_chip_and_handler(7, &jensen_local_irq_type, handle_level_irq);
+	irq_set_chip_and_handler(9, &jensen_local_irq_type, handle_level_irq);
 
 	common_init_isa_dma();
 }
diff --git a/arch/alpha/kernel/sys_marvel.c b/arch/alpha/kernel/sys_marvel.c
index e61910734e41..388b99d1779d 100644
--- a/arch/alpha/kernel/sys_marvel.c
+++ b/arch/alpha/kernel/sys_marvel.c
@@ -276,7 +276,7 @@ init_io7_irqs(struct io7 *io7,
 
 	/* Set up the lsi irqs.  */
 	for (i = 0; i < 128; ++i) {
-		set_irq_chip_and_handler(base + i, lsi_ops, handle_level_irq);
+		irq_set_chip_and_handler(base + i, lsi_ops, handle_level_irq);
 		irq_set_status_flags(i, IRQ_LEVEL);
 	}
 
@@ -290,7 +290,7 @@ init_io7_irqs(struct io7 *io7,
 
 	/* Set up the msi irqs.  */
 	for (i = 128; i < (128 + 512); ++i) {
-		set_irq_chip_and_handler(base + i, msi_ops, handle_level_irq);
+		irq_set_chip_and_handler(base + i, msi_ops, handle_level_irq);
 		irq_set_status_flags(i, IRQ_LEVEL);
 	}
 
@@ -308,8 +308,8 @@ marvel_init_irq(void)
 
 	/* Reserve the legacy irqs.  */
 	for (i = 0; i < 16; ++i) {
-		set_irq_chip_and_handler(i, &marvel_legacy_irq_type,
-			handle_level_irq);
+		irq_set_chip_and_handler(i, &marvel_legacy_irq_type,
+					 handle_level_irq);
 	}
 
 	/* Init the io7 irqs.  */
diff --git a/arch/alpha/kernel/sys_mikasa.c b/arch/alpha/kernel/sys_mikasa.c
index cf7f43dd3147..0e6e4697a025 100644
--- a/arch/alpha/kernel/sys_mikasa.c
+++ b/arch/alpha/kernel/sys_mikasa.c
@@ -98,7 +98,8 @@ mikasa_init_irq(void)
 	mikasa_update_irq_hw(0);
 
 	for (i = 16; i < 32; ++i) {
-		set_irq_chip_and_handler(i, &mikasa_irq_type, handle_level_irq);
+		irq_set_chip_and_handler(i, &mikasa_irq_type,
+					 handle_level_irq);
 		irq_set_status_flags(i, IRQ_LEVEL);
 	}
 
diff --git a/arch/alpha/kernel/sys_noritake.c b/arch/alpha/kernel/sys_noritake.c
index 92bc188e94a9..a00ac7087167 100644
--- a/arch/alpha/kernel/sys_noritake.c
+++ b/arch/alpha/kernel/sys_noritake.c
@@ -127,7 +127,8 @@ noritake_init_irq(void)
 	outw(0, 0x54c);
 
 	for (i = 16; i < 48; ++i) {
-		set_irq_chip_and_handler(i, &noritake_irq_type, handle_level_irq);
+		irq_set_chip_and_handler(i, &noritake_irq_type,
+					 handle_level_irq);
 		irq_set_status_flags(i, IRQ_LEVEL);
 	}
 
diff --git a/arch/alpha/kernel/sys_rawhide.c b/arch/alpha/kernel/sys_rawhide.c
index 936d4140ed5f..7f52161f3d88 100644
--- a/arch/alpha/kernel/sys_rawhide.c
+++ b/arch/alpha/kernel/sys_rawhide.c
@@ -180,7 +180,8 @@ rawhide_init_irq(void)
 	}
 
 	for (i = 16; i < 128; ++i) {
-		set_irq_chip_and_handler(i, &rawhide_irq_type, handle_level_irq);
+		irq_set_chip_and_handler(i, &rawhide_irq_type,
+					 handle_level_irq);
 		irq_set_status_flags(i, IRQ_LEVEL);
 	}
 
diff --git a/arch/alpha/kernel/sys_rx164.c b/arch/alpha/kernel/sys_rx164.c
index cea22a62913b..216d94d9c0c1 100644
--- a/arch/alpha/kernel/sys_rx164.c
+++ b/arch/alpha/kernel/sys_rx164.c
@@ -99,7 +99,7 @@ rx164_init_irq(void)
 
 	rx164_update_irq_hw(0);
 	for (i = 16; i < 40; ++i) {
-		set_irq_chip_and_handler(i, &rx164_irq_type, handle_level_irq);
+		irq_set_chip_and_handler(i, &rx164_irq_type, handle_level_irq);
 		irq_set_status_flags(i, IRQ_LEVEL);
 	}
 
diff --git a/arch/alpha/kernel/sys_sable.c b/arch/alpha/kernel/sys_sable.c
index a349538aabc9..da714e427c5f 100644
--- a/arch/alpha/kernel/sys_sable.c
+++ b/arch/alpha/kernel/sys_sable.c
@@ -518,8 +518,8 @@ sable_lynx_init_irq(int nr_of_irqs)
 	long i;
 
 	for (i = 0; i < nr_of_irqs; ++i) {
-		set_irq_chip_and_handler(i, &sable_lynx_irq_type,
-			handle_level_irq);
+		irq_set_chip_and_handler(i, &sable_lynx_irq_type,
+					 handle_level_irq);
 		irq_set_status_flags(i, IRQ_LEVEL);
 	}
 
diff --git a/arch/alpha/kernel/sys_takara.c b/arch/alpha/kernel/sys_takara.c
index 42a5331f13c4..a31f8cd9bd6b 100644
--- a/arch/alpha/kernel/sys_takara.c
+++ b/arch/alpha/kernel/sys_takara.c
@@ -138,7 +138,8 @@ takara_init_irq(void)
 		takara_update_irq_hw(i, -1);
 
 	for (i = 16; i < 128; ++i) {
-		set_irq_chip_and_handler(i, &takara_irq_type, handle_level_irq);
+		irq_set_chip_and_handler(i, &takara_irq_type,
+					 handle_level_irq);
 		irq_set_status_flags(i, IRQ_LEVEL);
 	}
 
diff --git a/arch/alpha/kernel/sys_titan.c b/arch/alpha/kernel/sys_titan.c
index 8c13a0c77830..fea0e4620994 100644
--- a/arch/alpha/kernel/sys_titan.c
+++ b/arch/alpha/kernel/sys_titan.c
@@ -179,7 +179,7 @@ init_titan_irqs(struct irq_chip * ops, int imin, int imax)
 {
 	long i;
 	for (i = imin; i <= imax; ++i) {
-		set_irq_chip_and_handler(i, ops, handle_level_irq);
+		irq_set_chip_and_handler(i, ops, handle_level_irq);
 		irq_set_status_flags(i, IRQ_LEVEL);
 	}
 }
diff --git a/arch/alpha/kernel/sys_wildfire.c b/arch/alpha/kernel/sys_wildfire.c
index ca60a387ef0a..d3cb28bb8eb0 100644
--- a/arch/alpha/kernel/sys_wildfire.c
+++ b/arch/alpha/kernel/sys_wildfire.c
@@ -183,17 +183,17 @@ wildfire_init_irq_per_pca(int qbbno, int pcano)
 	for (i = 0; i < 16; ++i) {
 		if (i == 2)
 			continue;
-		set_irq_chip_and_handler(i+irq_bias, &wildfire_irq_type,
-			handle_level_irq);
+		irq_set_chip_and_handler(i + irq_bias, &wildfire_irq_type,
+					 handle_level_irq);
 		irq_set_status_flags(i + irq_bias, IRQ_LEVEL);
 	}
 
-	set_irq_chip_and_handler(36+irq_bias, &wildfire_irq_type,
-		handle_level_irq);
+	irq_set_chip_and_handler(36 + irq_bias, &wildfire_irq_type,
+				 handle_level_irq);
 	irq_set_status_flags(36 + irq_bias, IRQ_LEVEL);
 	for (i = 40; i < 64; ++i) {
-		set_irq_chip_and_handler(i+irq_bias, &wildfire_irq_type,
-			handle_level_irq);
+		irq_set_chip_and_handler(i + irq_bias, &wildfire_irq_type,
+					 handle_level_irq);
 		irq_set_status_flags(i + irq_bias, IRQ_LEVEL);
 	}
 
diff --git a/arch/alpha/lib/ev67-strrchr.S b/arch/alpha/lib/ev67-strrchr.S
index 3fd8bf414c7b..dd0d8c6b9f59 100644
--- a/arch/alpha/lib/ev67-strrchr.S
+++ b/arch/alpha/lib/ev67-strrchr.S
@@ -82,7 +82,7 @@ $loop:
 $eos:
 	negq	t1, t4		# E : isolate first null byte match
 	and	t1, t4, t4	# E :
-	subq	t4, 1, t5	# E : build a mask of the bytes upto...
+	subq	t4, 1, t5	# E : build a mask of the bytes up to...
 	or	t4, t5, t4	# E : ... and including the null
 
 	and	t3, t4, t3	# E : mask out char matches after null
diff --git a/arch/alpha/lib/fls.c b/arch/alpha/lib/fls.c
index 32afaa3fa686..ddd048c0d825 100644
--- a/arch/alpha/lib/fls.c
+++ b/arch/alpha/lib/fls.c
@@ -6,7 +6,7 @@
 #include <linux/bitops.h>
 
 /* This is fls(x)-1, except zero is held to zero.  This allows most
-   efficent input into extbl, plus it allows easy handling of fls(0)=0.  */
+   efficient input into extbl, plus it allows easy handling of fls(0)=0.  */
 
 const unsigned char __flsm1_tab[256] = 
 {
diff --git a/arch/alpha/lib/strrchr.S b/arch/alpha/lib/strrchr.S
index 82cfd0ac907b..1970dc07cfd1 100644
--- a/arch/alpha/lib/strrchr.S
+++ b/arch/alpha/lib/strrchr.S
@@ -54,7 +54,7 @@ $loop:
 $eos:
 	negq	t1, t4		# e0    : isolate first null byte match
 	and	t1, t4, t4	# e1    :
-	subq	t4, 1, t5	# e0    : build a mask of the bytes upto...
+	subq	t4, 1, t5	# e0    : build a mask of the bytes up to...
 	or	t4, t5, t4	# e1    : ... and including the null
 
 	and	t3, t4, t3	# e0    : mask out char matches after null
diff --git a/arch/alpha/oprofile/op_model_ev67.c b/arch/alpha/oprofile/op_model_ev67.c
index 70302086283c..5b9d178e0228 100644
--- a/arch/alpha/oprofile/op_model_ev67.c
+++ b/arch/alpha/oprofile/op_model_ev67.c
@@ -192,7 +192,7 @@ ev67_handle_interrupt(unsigned long which, struct pt_regs *regs,
 		case TRAP_INVALID1:
 		case TRAP_INVALID2:
 		case TRAP_INVALID3:
-			/* Pipeline redirection ocurred. PMPC points
+			/* Pipeline redirection occurred. PMPC points
 			   to PALcode. Recognize ITB miss by PALcode
 			   offset address, and get actual PC from
 			   EXC_ADDR.  */
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 93d595a7477a..fdc9d4dbf85b 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -28,6 +28,7 @@ config ARM
 	select HAVE_C_RECORDMCOUNT
 	select HAVE_GENERIC_HARDIRQS
 	select HAVE_SPARSE_IRQ
+	select GENERIC_IRQ_SHOW
 	help
 	  The ARM series is a line of low-power-consumption RISC chip designs
 	  licensed by ARM Ltd and targeted at embedded applications and
@@ -365,6 +366,7 @@ config ARCH_MXC
 	select GENERIC_CLOCKEVENTS
 	select ARCH_REQUIRE_GPIOLIB
 	select CLKDEV_LOOKUP
+	select HAVE_SCHED_CLOCK
 	help
 	  Support for Freescale MXC/iMX-based family of processors
 
@@ -692,7 +694,7 @@ config ARCH_S3C2410
 	  the Samsung SMDK2410 development board (and derivatives).
 
 	  Note, the S3C2416 and the S3C2450 are so close that they even share
-	  the same SoC ID code. This means that there is no seperate machine
+	  the same SoC ID code. This means that there is no separate machine
 	  directory (no arch/arm/mach-s3c2450) as the S3C2416 was first.
 
 config ARCH_S3C64XX
@@ -2009,6 +2011,7 @@ menu "Power management options"
 source "kernel/power/Kconfig"
 
 config ARCH_SUSPEND_POSSIBLE
+	depends on !ARCH_S5P64X0 && !ARCH_S5P6442
 	def_bool y
 
 endmenu
diff --git a/arch/arm/Kconfig-nommu b/arch/arm/Kconfig-nommu
index 901e6dff8437..2cef8e13f9f8 100644
--- a/arch/arm/Kconfig-nommu
+++ b/arch/arm/Kconfig-nommu
@@ -34,7 +34,7 @@ config PROCESSOR_ID
 	  used instead of the auto-probing which utilizes the register.
 
 config REMAP_VECTORS_TO_RAM
-	bool 'Install vectors to the begining of RAM' if DRAM_BASE
+	bool 'Install vectors to the beginning of RAM' if DRAM_BASE
 	depends on DRAM_BASE
 	help
 	  The kernel needs to change the hardware exception vectors.
diff --git a/arch/arm/boot/compressed/head.S b/arch/arm/boot/compressed/head.S
index 84ac4d656310..adf583cd0c35 100644
--- a/arch/arm/boot/compressed/head.S
+++ b/arch/arm/boot/compressed/head.S
@@ -21,20 +21,12 @@
 
 #if defined(CONFIG_DEBUG_ICEDCC)
 
-#if defined(CONFIG_CPU_V6) || defined(CONFIG_CPU_V6K)
+#if defined(CONFIG_CPU_V6) || defined(CONFIG_CPU_V6K) || defined(CONFIG_CPU_V7)
 		.macro	loadsp, rb, tmp
 		.endm
 		.macro	writeb, ch, rb
 		mcr	p14, 0, \ch, c0, c5, 0
 		.endm
-#elif defined(CONFIG_CPU_V7)
-		.macro	loadsp, rb, tmp
-		.endm
-		.macro	writeb, ch, rb
-wait:		mrc	p14, 0, pc, c0, c1, 0
-		bcs	wait
-		mcr	p14, 0, \ch, c0, c5, 0
-		.endm
 #elif defined(CONFIG_CPU_XSCALE)
 		.macro	loadsp, rb, tmp
 		.endm
diff --git a/arch/arm/boot/compressed/misc.c b/arch/arm/boot/compressed/misc.c
index 4657e877bf8f..2df38263124c 100644
--- a/arch/arm/boot/compressed/misc.c
+++ b/arch/arm/boot/compressed/misc.c
@@ -36,7 +36,7 @@ extern void error(char *x);
 
 #ifdef CONFIG_DEBUG_ICEDCC
 
-#if defined(CONFIG_CPU_V6) || defined(CONFIG_CPU_V6K)
+#if defined(CONFIG_CPU_V6) || defined(CONFIG_CPU_V6K) || defined(CONFIG_CPU_V7)
 
 static void icedcc_putc(int ch)
 {
@@ -52,16 +52,6 @@ static void icedcc_putc(int ch)
 	asm("mcr p14, 0, %0, c0, c5, 0" : : "r" (ch));
 }
 
-#elif defined(CONFIG_CPU_V7)
-
-static void icedcc_putc(int ch)
-{
-	asm(
-	"wait:	mrc	p14, 0, pc, c0, c1, 0			\n\
-		bcs	wait					\n\
-		mcr     p14, 0, %0, c0, c5, 0			"
-	: : "r" (ch));
-}
 
 #elif defined(CONFIG_CPU_XSCALE)
 
diff --git a/arch/arm/common/gic.c b/arch/arm/common/gic.c
index cb6b041c39d2..f70ec7dadebb 100644
--- a/arch/arm/common/gic.c
+++ b/arch/arm/common/gic.c
@@ -213,8 +213,8 @@ static int gic_set_wake(struct irq_data *d, unsigned int on)
 
 static void gic_handle_cascade_irq(unsigned int irq, struct irq_desc *desc)
 {
-	struct gic_chip_data *chip_data = get_irq_data(irq);
-	struct irq_chip *chip = get_irq_chip(irq);
+	struct gic_chip_data *chip_data = irq_get_handler_data(irq);
+	struct irq_chip *chip = irq_get_chip(irq);
 	unsigned int cascade_irq, gic_irq;
 	unsigned long status;
 
@@ -257,9 +257,9 @@ void __init gic_cascade_irq(unsigned int gic_nr, unsigned int irq)
 {
 	if (gic_nr >= MAX_GIC_NR)
 		BUG();
-	if (set_irq_data(irq, &gic_data[gic_nr]) != 0)
+	if (irq_set_handler_data(irq, &gic_data[gic_nr]) != 0)
 		BUG();
-	set_irq_chained_handler(irq, gic_handle_cascade_irq);
+	irq_set_chained_handler(irq, gic_handle_cascade_irq);
 }
 
 static void __init gic_dist_init(struct gic_chip_data *gic,
@@ -319,9 +319,8 @@ static void __init gic_dist_init(struct gic_chip_data *gic,
 	 * Setup the Linux IRQ subsystem.
 	 */
 	for (i = irq_start; i < irq_limit; i++) {
-		set_irq_chip(i, &gic_chip);
-		set_irq_chip_data(i, gic);
-		set_irq_handler(i, handle_level_irq);
+		irq_set_chip_and_handler(i, &gic_chip, handle_level_irq);
+		irq_set_chip_data(i, gic);
 		set_irq_flags(i, IRQF_VALID | IRQF_PROBE);
 	}
 
@@ -382,7 +381,7 @@ void __cpuinit gic_enable_ppi(unsigned int irq)
 	unsigned long flags;
 
 	local_irq_save(flags);
-	irq_to_desc(irq)->status |= IRQ_NOPROBE;
+	irq_set_status_flags(irq, IRQ_NOPROBE);
 	gic_unmask_irq(irq_get_irq_data(irq));
 	local_irq_restore(flags);
 }
diff --git a/arch/arm/common/it8152.c b/arch/arm/common/it8152.c
index fcddd48fe9da..7a21927c52e1 100644
--- a/arch/arm/common/it8152.c
+++ b/arch/arm/common/it8152.c
@@ -88,8 +88,8 @@ void it8152_init_irq(void)
 	__raw_writel((0), IT8152_INTC_LDCNIRR);
 
 	for (irq = IT8152_IRQ(0); irq <= IT8152_LAST_IRQ; irq++) {
-		set_irq_chip(irq, &it8152_irq_chip);
-		set_irq_handler(irq, handle_level_irq);
+		irq_set_chip_and_handler(irq, &it8152_irq_chip,
+					 handle_level_irq);
 		set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
 	}
 }
diff --git a/arch/arm/common/locomo.c b/arch/arm/common/locomo.c
index a026a6bf4892..b55c3625d7ee 100644
--- a/arch/arm/common/locomo.c
+++ b/arch/arm/common/locomo.c
@@ -140,7 +140,7 @@ static struct locomo_dev_info locomo_devices[] = {
 
 static void locomo_handler(unsigned int irq, struct irq_desc *desc)
 {
-	struct locomo *lchip = get_irq_chip_data(irq);
+	struct locomo *lchip = irq_get_chip_data(irq);
 	int req, i;
 
 	/* Acknowledge the parent IRQ */
@@ -197,15 +197,14 @@ static void locomo_setup_irq(struct locomo *lchip)
 	/*
 	 * Install handler for IRQ_LOCOMO_HW.
 	 */
-	set_irq_type(lchip->irq, IRQ_TYPE_EDGE_FALLING);
-	set_irq_chip_data(lchip->irq, lchip);
-	set_irq_chained_handler(lchip->irq, locomo_handler);
+	irq_set_irq_type(lchip->irq, IRQ_TYPE_EDGE_FALLING);
+	irq_set_chip_data(lchip->irq, lchip);
+	irq_set_chained_handler(lchip->irq, locomo_handler);
 
 	/* Install handlers for IRQ_LOCOMO_* */
 	for ( ; irq <= lchip->irq_base + 3; irq++) {
-		set_irq_chip(irq, &locomo_chip);
-		set_irq_chip_data(irq, lchip);
-		set_irq_handler(irq, handle_level_irq);
+		irq_set_chip_and_handler(irq, &locomo_chip, handle_level_irq);
+		irq_set_chip_data(irq, lchip);
 		set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
 	}
 }
@@ -476,8 +475,8 @@ static void __locomo_remove(struct locomo *lchip)
 	device_for_each_child(lchip->dev, NULL, locomo_remove_child);
 
 	if (lchip->irq != NO_IRQ) {
-		set_irq_chained_handler(lchip->irq, NULL);
-		set_irq_data(lchip->irq, NULL);
+		irq_set_chained_handler(lchip->irq, NULL);
+		irq_set_handler_data(lchip->irq, NULL);
 	}
 
 	iounmap(lchip->base);
diff --git a/arch/arm/common/pl330.c b/arch/arm/common/pl330.c
index 8f0f86db3602..97912fa48782 100644
--- a/arch/arm/common/pl330.c
+++ b/arch/arm/common/pl330.c
@@ -1045,7 +1045,7 @@ static inline int _loop(unsigned dry_run, u8 buf[],
 	unsigned lcnt0, lcnt1, ljmp0, ljmp1;
 	struct _arg_LPEND lpend;
 
-	/* Max iterations possibile in DMALP is 256 */
+	/* Max iterations possible in DMALP is 256 */
 	if (*bursts >= 256*256) {
 		lcnt1 = 256;
 		lcnt0 = 256;
@@ -1446,7 +1446,7 @@ int pl330_update(const struct pl330_info *pi)
 	}
 
 	for (ev = 0; ev < pi->pcfg.num_events; ev++) {
-		if (val & (1 << ev)) { /* Event occured */
+		if (val & (1 << ev)) { /* Event occurred */
 			struct pl330_thread *thrd;
 			u32 inten = readl(regs + INTEN);
 			int active;
diff --git a/arch/arm/common/sa1111.c b/arch/arm/common/sa1111.c
index eb9796b0dab2..a12b33c0dc42 100644
--- a/arch/arm/common/sa1111.c
+++ b/arch/arm/common/sa1111.c
@@ -202,7 +202,7 @@ static void
 sa1111_irq_handler(unsigned int irq, struct irq_desc *desc)
 {
 	unsigned int stat0, stat1, i;
-	struct sa1111 *sachip = get_irq_data(irq);
+	struct sa1111 *sachip = irq_get_handler_data(irq);
 	void __iomem *mapbase = sachip->base + SA1111_INTC;
 
 	stat0 = sa1111_readl(mapbase + SA1111_INTSTATCLR0);
@@ -472,25 +472,25 @@ static void sa1111_setup_irq(struct sa1111 *sachip)
 	sa1111_writel(~0, irqbase + SA1111_INTSTATCLR1);
 
 	for (irq = IRQ_GPAIN0; irq <= SSPROR; irq++) {
-		set_irq_chip(irq, &sa1111_low_chip);
-		set_irq_chip_data(irq, sachip);
-		set_irq_handler(irq, handle_edge_irq);
+		irq_set_chip_and_handler(irq, &sa1111_low_chip,
+					 handle_edge_irq);
+		irq_set_chip_data(irq, sachip);
 		set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
 	}
 
 	for (irq = AUDXMTDMADONEA; irq <= IRQ_S1_BVD1_STSCHG; irq++) {
-		set_irq_chip(irq, &sa1111_high_chip);
-		set_irq_chip_data(irq, sachip);
-		set_irq_handler(irq, handle_edge_irq);
+		irq_set_chip_and_handler(irq, &sa1111_high_chip,
+					 handle_edge_irq);
+		irq_set_chip_data(irq, sachip);
 		set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
 	}
 
 	/*
 	 * Register SA1111 interrupt
 	 */
-	set_irq_type(sachip->irq, IRQ_TYPE_EDGE_RISING);
-	set_irq_data(sachip->irq, sachip);
-	set_irq_chained_handler(sachip->irq, sa1111_irq_handler);
+	irq_set_irq_type(sachip->irq, IRQ_TYPE_EDGE_RISING);
+	irq_set_handler_data(sachip->irq, sachip);
+	irq_set_chained_handler(sachip->irq, sa1111_irq_handler);
 }
 
 /*
@@ -815,8 +815,8 @@ static void __sa1111_remove(struct sa1111 *sachip)
 	clk_disable(sachip->clk);
 
 	if (sachip->irq != NO_IRQ) {
-		set_irq_chained_handler(sachip->irq, NULL);
-		set_irq_data(sachip->irq, NULL);
+		irq_set_chained_handler(sachip->irq, NULL);
+		irq_set_handler_data(sachip->irq, NULL);
 
 		release_mem_region(sachip->phys + SA1111_INTC, 512);
 	}
diff --git a/arch/arm/common/vic.c b/arch/arm/common/vic.c
index ae5fe7292e0d..113085a77123 100644
--- a/arch/arm/common/vic.c
+++ b/arch/arm/common/vic.c
@@ -305,9 +305,9 @@ static void __init vic_set_irq_sources(void __iomem *base,
 		if (vic_sources & (1 << i)) {
 			unsigned int irq = irq_start + i;
 
-			set_irq_chip(irq, &vic_chip);
-			set_irq_chip_data(irq, base);
-			set_irq_handler(irq, handle_level_irq);
+			irq_set_chip_and_handler(irq, &vic_chip,
+						 handle_level_irq);
+			irq_set_chip_data(irq, base);
 			set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
 		}
 	}
diff --git a/arch/arm/include/asm/fpstate.h b/arch/arm/include/asm/fpstate.h
index ee5e03efc1bb..3ad4c10d0d84 100644
--- a/arch/arm/include/asm/fpstate.h
+++ b/arch/arm/include/asm/fpstate.h
@@ -18,7 +18,7 @@
  * VFP storage area has:
  *  - FPEXC, FPSCR, FPINST and FPINST2.
  *  - 16 or 32 double precision data registers
- *  - an implementation-dependant word of state for FLDMX/FSTMX (pre-ARMv6)
+ *  - an implementation-dependent word of state for FLDMX/FSTMX (pre-ARMv6)
  * 
  *  FPEXC will always be non-zero once the VFP has been used in this process.
  */
diff --git a/arch/arm/include/asm/glue-cache.h b/arch/arm/include/asm/glue-cache.h
index c7afbc552c7f..7e30874377e6 100644
--- a/arch/arm/include/asm/glue-cache.h
+++ b/arch/arm/include/asm/glue-cache.h
@@ -126,7 +126,7 @@
 #endif
 
 #if !defined(_CACHE) && !defined(MULTI_CACHE)
-#error Unknown cache maintainence model
+#error Unknown cache maintenance model
 #endif
 
 #ifndef MULTI_CACHE
diff --git a/arch/arm/include/asm/glue.h b/arch/arm/include/asm/glue.h
index 0ec35d1698aa..fbf71d75ec83 100644
--- a/arch/arm/include/asm/glue.h
+++ b/arch/arm/include/asm/glue.h
@@ -10,8 +10,8 @@
  *
  *  This file provides the glue to stick the processor-specific bits
  *  into the kernel in an efficient manner.  The idea is to use branches
- *  when we're only targetting one class of TLB, or indirect calls
- *  when we're targetting multiple classes of TLBs.
+ *  when we're only targeting one class of TLB, or indirect calls
+ *  when we're targeting multiple classes of TLBs.
  */
 #ifdef __KERNEL__
 
diff --git a/arch/arm/include/asm/hardware/pl080.h b/arch/arm/include/asm/hardware/pl080.h
index f35b86e68dd5..e4a04e4e5627 100644
--- a/arch/arm/include/asm/hardware/pl080.h
+++ b/arch/arm/include/asm/hardware/pl080.h
@@ -16,7 +16,7 @@
  * make it not entierly compatible with the PL080 specification from
  * ARM. When in doubt, check the Samsung documentation first.
  *
- * The Samsung defines are PL080S, and add an extra controll register,
+ * The Samsung defines are PL080S, and add an extra control register,
  * the ability to move more than 2^11 counts of data and some extra
  * OneNAND features.
 */
diff --git a/arch/arm/include/asm/hw_irq.h b/arch/arm/include/asm/hw_irq.h
index 5586b7c8ef6f..a71b417b1856 100644
--- a/arch/arm/include/asm/hw_irq.h
+++ b/arch/arm/include/asm/hw_irq.h
@@ -10,14 +10,6 @@ static inline void ack_bad_irq(int irq)
 	irq_err_count++;
 }
 
-/*
- * Obsolete inline function for calling irq descriptor handlers.
- */
-static inline void desc_handle_irq(unsigned int irq, struct irq_desc *desc)
-{
-	desc->handle_irq(irq, desc);
-}
-
 void set_irq_flags(unsigned int irq, unsigned int flags);
 
 #define IRQF_VALID	(1 << 0)
diff --git a/arch/arm/include/asm/mach/udc_pxa2xx.h b/arch/arm/include/asm/mach/udc_pxa2xx.h
index 833306ee9e7f..ea297ac70bc6 100644
--- a/arch/arm/include/asm/mach/udc_pxa2xx.h
+++ b/arch/arm/include/asm/mach/udc_pxa2xx.h
@@ -20,8 +20,6 @@ struct pxa2xx_udc_mach_info {
 	 * VBUS IRQ and omit the methods above.  Store the GPIO number
 	 * here.  Note that sometimes the signals go through inverters...
 	 */
-	bool	gpio_vbus_inverted;
-	int	gpio_vbus;			/* high == vbus present */
 	bool	gpio_pullup_inverted;
 	int	gpio_pullup;			/* high == pullup activated */
 };
diff --git a/arch/arm/include/asm/system.h b/arch/arm/include/asm/system.h
index 9a87823642d0..885be097769d 100644
--- a/arch/arm/include/asm/system.h
+++ b/arch/arm/include/asm/system.h
@@ -249,7 +249,7 @@ do {									\
  * cache totally.  This means that the cache becomes inconsistent, and,
  * since we use normal loads/stores as well, this is really bad.
  * Typically, this causes oopsen in filp_close, but could have other,
- * more disasterous effects.  There are two work-arounds:
+ * more disastrous effects.  There are two work-arounds:
  *  1. Disable interrupts and emulate the atomic swap
  *  2. Clean the cache, perform atomic swap, flush the cache
  *
diff --git a/arch/arm/include/asm/ucontext.h b/arch/arm/include/asm/ucontext.h
index 47f023aa8495..14749aec94bf 100644
--- a/arch/arm/include/asm/ucontext.h
+++ b/arch/arm/include/asm/ucontext.h
@@ -47,7 +47,7 @@ struct crunch_sigframe {
 #endif
 
 #ifdef CONFIG_IWMMXT
-/* iwmmxt_area is 0x98 bytes long, preceeded by 8 bytes of signature */
+/* iwmmxt_area is 0x98 bytes long, preceded by 8 bytes of signature */
 #define IWMMXT_MAGIC		0x12ef842a
 #define IWMMXT_STORAGE_SIZE	(IWMMXT_SIZE + 8)
 
diff --git a/arch/arm/kernel/bios32.c b/arch/arm/kernel/bios32.c
index d86fcd44b220..e4ee050aad7d 100644
--- a/arch/arm/kernel/bios32.c
+++ b/arch/arm/kernel/bios32.c
@@ -159,31 +159,6 @@ static void __devinit pci_fixup_dec21285(struct pci_dev *dev)
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_21285, pci_fixup_dec21285);
 
 /*
- * Same as above. The PrPMC800 carrier board for the PrPMC1100 
- * card maps the host-bridge @ 00:01:00 for some reason and it
- * ends up getting scanned. Note that we only want to do this
- * fixup when we find the IXP4xx on a PrPMC system, which is why
- * we check the machine type. We could be running on a board
- * with an IXP4xx target device and we don't want to kill the
- * resources in that case.
- */
-static void __devinit pci_fixup_prpmc1100(struct pci_dev *dev)
-{
-	int i;
-
-	if (machine_is_prpmc1100()) {
-		dev->class &= 0xff;
-		dev->class |= PCI_CLASS_BRIDGE_HOST << 8;
-		for (i = 0; i < PCI_NUM_RESOURCES; i++) {
-			dev->resource[i].start = 0;
-			dev->resource[i].end   = 0;
-			dev->resource[i].flags = 0;
-		}
-	}
-}
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_IXP4XX, pci_fixup_prpmc1100);
-
-/*
  * PCI IDE controllers use non-standard I/O port decoding, respect it.
  */
 static void __devinit pci_fixup_ide_bases(struct pci_dev *dev)
diff --git a/arch/arm/kernel/debug.S b/arch/arm/kernel/debug.S
index d2d983be096d..bcd66e00bdbe 100644
--- a/arch/arm/kernel/debug.S
+++ b/arch/arm/kernel/debug.S
@@ -25,7 +25,7 @@
 		.macro	addruart, rp, rv
 		.endm
 
-#if defined(CONFIG_CPU_V6) || defined(CONFIG_CPU_V6K)
+#if defined(CONFIG_CPU_V6) || defined(CONFIG_CPU_V6K) || defined(CONFIG_CPU_V7)
 
 		.macro	senduart, rd, rx
 		mcr	p14, 0, \rd, c0, c5, 0
@@ -49,23 +49,6 @@
 1002:
 		.endm
 
-#elif defined(CONFIG_CPU_V7)
-
-		.macro	senduart, rd, rx
-		mcr	p14, 0, \rd, c0, c5, 0
-		.endm
-
-		.macro	busyuart, rd, rx
-busy:		mrc	p14, 0, pc, c0, c1, 0
-		bcs	busy
-		.endm
-
-		.macro	waituart, rd, rx
-wait:		mrc	p14, 0, pc, c0, c1, 0
-		bcs	wait
-
-		.endm
-
 #elif defined(CONFIG_CPU_XSCALE)
 
 		.macro	senduart, rd, rx
diff --git a/arch/arm/kernel/ecard.c b/arch/arm/kernel/ecard.c
index 2ad62df37730..d16500110ee9 100644
--- a/arch/arm/kernel/ecard.c
+++ b/arch/arm/kernel/ecard.c
@@ -1043,8 +1043,8 @@ ecard_probe(int slot, card_type_t type)
 	 */
 	if (slot < 8) {
 		ec->irq = 32 + slot;
-		set_irq_chip(ec->irq, &ecard_chip);
-		set_irq_handler(ec->irq, handle_level_irq);
+		irq_set_chip_and_handler(ec->irq, &ecard_chip,
+					 handle_level_irq);
 		set_irq_flags(ec->irq, IRQF_VALID);
 	}
 
@@ -1103,7 +1103,7 @@ static int __init ecard_init(void)
 
 	irqhw = ecard_probeirqhw();
 
-	set_irq_chained_handler(IRQ_EXPANSIONCARD,
+	irq_set_chained_handler(IRQ_EXPANSIONCARD,
 				irqhw ? ecard_irqexp_handler : ecard_irq_handler);
 
 	ecard_proc_init();
diff --git a/arch/arm/kernel/etm.c b/arch/arm/kernel/etm.c
index 052b509e2d5f..1bec8b5f22f0 100644
--- a/arch/arm/kernel/etm.c
+++ b/arch/arm/kernel/etm.c
@@ -338,7 +338,7 @@ static struct miscdevice etb_miscdev = {
 	.fops = &etb_fops,
 };
 
-static int __init etb_probe(struct amba_device *dev, const struct amba_id *id)
+static int __devinit etb_probe(struct amba_device *dev, const struct amba_id *id)
 {
 	struct tracectx *t = &tracer;
 	int ret = 0;
@@ -530,7 +530,7 @@ static ssize_t trace_mode_store(struct kobject *kobj,
 static struct kobj_attribute trace_mode_attr =
 	__ATTR(trace_mode, 0644, trace_mode_show, trace_mode_store);
 
-static int __init etm_probe(struct amba_device *dev, const struct amba_id *id)
+static int __devinit etm_probe(struct amba_device *dev, const struct amba_id *id)
 {
 	struct tracectx *t = &tracer;
 	int ret = 0;
diff --git a/arch/arm/kernel/irq.c b/arch/arm/kernel/irq.c
index 3535d3793e65..83bbad03fcc6 100644
--- a/arch/arm/kernel/irq.c
+++ b/arch/arm/kernel/irq.c
@@ -51,63 +51,18 @@
 
 unsigned long irq_err_count;
 
-int show_interrupts(struct seq_file *p, void *v)
+int arch_show_interrupts(struct seq_file *p, int prec)
 {
-	int i = *(loff_t *) v, cpu;
-	struct irq_desc *desc;
-	struct irqaction * action;
-	unsigned long flags;
-	int prec, n;
-
-	for (prec = 3, n = 1000; prec < 10 && n <= nr_irqs; prec++)
-		n *= 10;
-
-#ifdef CONFIG_SMP
-	if (prec < 4)
-		prec = 4;
-#endif
-
-	if (i == 0) {
-		char cpuname[12];
-
-		seq_printf(p, "%*s ", prec, "");
-		for_each_present_cpu(cpu) {
-			sprintf(cpuname, "CPU%d", cpu);
-			seq_printf(p, " %10s", cpuname);
-		}
-		seq_putc(p, '\n');
-	}
-
-	if (i < nr_irqs) {
-		desc = irq_to_desc(i);
-		raw_spin_lock_irqsave(&desc->lock, flags);
-		action = desc->action;
-		if (!action)
-			goto unlock;
-
-		seq_printf(p, "%*d: ", prec, i);
-		for_each_present_cpu(cpu)
-			seq_printf(p, "%10u ", kstat_irqs_cpu(i, cpu));
-		seq_printf(p, " %10s", desc->irq_data.chip->name ? : "-");
-		seq_printf(p, "  %s", action->name);
-		for (action = action->next; action; action = action->next)
-			seq_printf(p, ", %s", action->name);
-
-		seq_putc(p, '\n');
-unlock:
-		raw_spin_unlock_irqrestore(&desc->lock, flags);
-	} else if (i == nr_irqs) {
 #ifdef CONFIG_FIQ
-		show_fiq_list(p, prec);
+	show_fiq_list(p, prec);
 #endif
 #ifdef CONFIG_SMP
-		show_ipi_list(p, prec);
+	show_ipi_list(p, prec);
 #endif
 #ifdef CONFIG_LOCAL_TIMERS
-		show_local_irqs(p, prec);
+	show_local_irqs(p, prec);
 #endif
-		seq_printf(p, "%*s: %10lu\n", prec, "Err", irq_err_count);
-	}
+	seq_printf(p, "%*s: %10lu\n", prec, "Err", irq_err_count);
 	return 0;
 }
 
@@ -144,24 +99,21 @@ asm_do_IRQ(unsigned int irq, struct pt_regs *regs)
 
 void set_irq_flags(unsigned int irq, unsigned int iflags)
 {
-	struct irq_desc *desc;
-	unsigned long flags;
+	unsigned long clr = 0, set = IRQ_NOREQUEST | IRQ_NOPROBE | IRQ_NOAUTOEN;
 
 	if (irq >= nr_irqs) {
 		printk(KERN_ERR "Trying to set irq flags for IRQ%d\n", irq);
 		return;
 	}
 
-	desc = irq_to_desc(irq);
-	raw_spin_lock_irqsave(&desc->lock, flags);
-	desc->status |= IRQ_NOREQUEST | IRQ_NOPROBE | IRQ_NOAUTOEN;
 	if (iflags & IRQF_VALID)
-		desc->status &= ~IRQ_NOREQUEST;
+		clr |= IRQ_NOREQUEST;
 	if (iflags & IRQF_PROBE)
-		desc->status &= ~IRQ_NOPROBE;
+		clr |= IRQ_NOPROBE;
 	if (!(iflags & IRQF_NOAUTOEN))
-		desc->status &= ~IRQ_NOAUTOEN;
-	raw_spin_unlock_irqrestore(&desc->lock, flags);
+		clr |= IRQ_NOAUTOEN;
+	/* Order is clear bits in "clr" then set bits in "set" */
+	irq_modify_status(irq, clr, set & ~clr);
 }
 
 void __init init_IRQ(void)
diff --git a/arch/arm/kernel/kprobes-decode.c b/arch/arm/kernel/kprobes-decode.c
index 8f6ed43861f1..23891317dc4b 100644
--- a/arch/arm/kernel/kprobes-decode.c
+++ b/arch/arm/kernel/kprobes-decode.c
@@ -594,7 +594,8 @@ static void __kprobes emulate_ldr(struct kprobe *p, struct pt_regs *regs)
 	long cpsr = regs->ARM_cpsr;
 
 	fnr.dr = insnslot_llret_3arg_rflags(rnv, 0, rmv, cpsr, i_fn);
-	regs->uregs[rn] = fnr.r0;  /* Save Rn in case of writeback. */
+	if (rn != 15)
+		regs->uregs[rn] = fnr.r0;  /* Save Rn in case of writeback. */
 	rdv = fnr.r1;
 
 	if (rd == 15) {
@@ -622,10 +623,11 @@ static void __kprobes emulate_str(struct kprobe *p, struct pt_regs *regs)
 	long rdv = (rd == 15) ? iaddr + str_pc_offset : regs->uregs[rd];
 	long rnv = (rn == 15) ? iaddr +  8 : regs->uregs[rn];
 	long rmv = regs->uregs[rm];  /* rm/rmv may be invalid, don't care. */
+	long rnv_wb;
 
-	/* Save Rn in case of writeback. */
-	regs->uregs[rn] =
-		insnslot_3arg_rflags(rnv, rdv, rmv, regs->ARM_cpsr, i_fn);
+	rnv_wb = insnslot_3arg_rflags(rnv, rdv, rmv, regs->ARM_cpsr, i_fn);
+	if (rn != 15)
+		regs->uregs[rn] = rnv_wb;  /* Save Rn in case of writeback. */
 }
 
 static void __kprobes emulate_mrrc(struct kprobe *p, struct pt_regs *regs)
diff --git a/arch/arm/kernel/perf_event.c b/arch/arm/kernel/perf_event.c
index 22e194eb8536..69cfee0fe00f 100644
--- a/arch/arm/kernel/perf_event.c
+++ b/arch/arm/kernel/perf_event.c
@@ -79,6 +79,7 @@ struct arm_pmu {
 	void		(*write_counter)(int idx, u32 val);
 	void		(*start)(void);
 	void		(*stop)(void);
+	void		(*reset)(void *);
 	const unsigned	(*cache_map)[PERF_COUNT_HW_CACHE_MAX]
 				    [PERF_COUNT_HW_CACHE_OP_MAX]
 				    [PERF_COUNT_HW_CACHE_RESULT_MAX];
@@ -204,11 +205,9 @@ armpmu_event_set_period(struct perf_event *event,
 static u64
 armpmu_event_update(struct perf_event *event,
 		    struct hw_perf_event *hwc,
-		    int idx)
+		    int idx, int overflow)
 {
-	int shift = 64 - 32;
-	s64 prev_raw_count, new_raw_count;
-	u64 delta;
+	u64 delta, prev_raw_count, new_raw_count;
 
 again:
 	prev_raw_count = local64_read(&hwc->prev_count);
@@ -218,8 +217,13 @@ again:
 			     new_raw_count) != prev_raw_count)
 		goto again;
 
-	delta = (new_raw_count << shift) - (prev_raw_count << shift);
-	delta >>= shift;
+	new_raw_count &= armpmu->max_period;
+	prev_raw_count &= armpmu->max_period;
+
+	if (overflow)
+		delta = armpmu->max_period - prev_raw_count + new_raw_count;
+	else
+		delta = new_raw_count - prev_raw_count;
 
 	local64_add(delta, &event->count);
 	local64_sub(delta, &hwc->period_left);
@@ -236,7 +240,7 @@ armpmu_read(struct perf_event *event)
 	if (hwc->idx < 0)
 		return;
 
-	armpmu_event_update(event, hwc, hwc->idx);
+	armpmu_event_update(event, hwc, hwc->idx, 0);
 }
 
 static void
@@ -254,7 +258,7 @@ armpmu_stop(struct perf_event *event, int flags)
 	if (!(hwc->state & PERF_HES_STOPPED)) {
 		armpmu->disable(hwc, hwc->idx);
 		barrier(); /* why? */
-		armpmu_event_update(event, hwc, hwc->idx);
+		armpmu_event_update(event, hwc, hwc->idx, 0);
 		hwc->state |= PERF_HES_STOPPED | PERF_HES_UPTODATE;
 	}
 }
@@ -624,6 +628,19 @@ static struct pmu pmu = {
 #include "perf_event_v6.c"
 #include "perf_event_v7.c"
 
+/*
+ * Ensure the PMU has sane values out of reset.
+ * This requires SMP to be available, so exists as a separate initcall.
+ */
+static int __init
+armpmu_reset(void)
+{
+	if (armpmu && armpmu->reset)
+		return on_each_cpu(armpmu->reset, NULL, 1);
+	return 0;
+}
+arch_initcall(armpmu_reset);
+
 static int __init
 init_hw_perf_events(void)
 {
diff --git a/arch/arm/kernel/perf_event_v6.c b/arch/arm/kernel/perf_event_v6.c
index 6fc2d228db55..f1e8dd94afe8 100644
--- a/arch/arm/kernel/perf_event_v6.c
+++ b/arch/arm/kernel/perf_event_v6.c
@@ -474,7 +474,7 @@ armv6pmu_handle_irq(int irq_num,
 			continue;
 
 		hwc = &event->hw;
-		armpmu_event_update(event, hwc, idx);
+		armpmu_event_update(event, hwc, idx, 1);
 		data.period = event->hw.last_period;
 		if (!armpmu_event_set_period(event, hwc, idx))
 			continue;
diff --git a/arch/arm/kernel/perf_event_v7.c b/arch/arm/kernel/perf_event_v7.c
index 2e1402556fa0..4960686afb58 100644
--- a/arch/arm/kernel/perf_event_v7.c
+++ b/arch/arm/kernel/perf_event_v7.c
@@ -466,6 +466,7 @@ static inline unsigned long armv7_pmnc_read(void)
 static inline void armv7_pmnc_write(unsigned long val)
 {
 	val &= ARMV7_PMNC_MASK;
+	isb();
 	asm volatile("mcr p15, 0, %0, c9, c12, 0" : : "r"(val));
 }
 
@@ -502,6 +503,7 @@ static inline int armv7_pmnc_select_counter(unsigned int idx)
 
 	val = (idx - ARMV7_EVENT_CNT_TO_CNTx) & ARMV7_SELECT_MASK;
 	asm volatile("mcr p15, 0, %0, c9, c12, 5" : : "r" (val));
+	isb();
 
 	return idx;
 }
@@ -780,7 +782,7 @@ static irqreturn_t armv7pmu_handle_irq(int irq_num, void *dev)
 			continue;
 
 		hwc = &event->hw;
-		armpmu_event_update(event, hwc, idx);
+		armpmu_event_update(event, hwc, idx, 1);
 		data.period = event->hw.last_period;
 		if (!armpmu_event_set_period(event, hwc, idx))
 			continue;
@@ -847,6 +849,18 @@ static int armv7pmu_get_event_idx(struct cpu_hw_events *cpuc,
 	}
 }
 
+static void armv7pmu_reset(void *info)
+{
+	u32 idx, nb_cnt = armpmu->num_events;
+
+	/* The counter and interrupt enable registers are unknown at reset. */
+	for (idx = 1; idx < nb_cnt; ++idx)
+		armv7pmu_disable_event(NULL, idx);
+
+	/* Initialize & Reset PMNC: C and P bits */
+	armv7_pmnc_write(ARMV7_PMNC_P | ARMV7_PMNC_C);
+}
+
 static struct arm_pmu armv7pmu = {
 	.handle_irq		= armv7pmu_handle_irq,
 	.enable			= armv7pmu_enable_event,
@@ -856,17 +870,15 @@ static struct arm_pmu armv7pmu = {
 	.get_event_idx		= armv7pmu_get_event_idx,
 	.start			= armv7pmu_start,
 	.stop			= armv7pmu_stop,
+	.reset			= armv7pmu_reset,
 	.raw_event_mask		= 0xFF,
 	.max_period		= (1LLU << 32) - 1,
 };
 
-static u32 __init armv7_reset_read_pmnc(void)
+static u32 __init armv7_read_num_pmnc_events(void)
 {
 	u32 nb_cnt;
 
-	/* Initialize & Reset PMNC: C and P bits */
-	armv7_pmnc_write(ARMV7_PMNC_P | ARMV7_PMNC_C);
-
 	/* Read the nb of CNTx counters supported from PMNC */
 	nb_cnt = (armv7_pmnc_read() >> ARMV7_PMNC_N_SHIFT) & ARMV7_PMNC_N_MASK;
 
@@ -880,7 +892,7 @@ static const struct arm_pmu *__init armv7_a8_pmu_init(void)
 	armv7pmu.name		= "ARMv7 Cortex-A8";
 	armv7pmu.cache_map	= &armv7_a8_perf_cache_map;
 	armv7pmu.event_map	= &armv7_a8_perf_map;
-	armv7pmu.num_events	= armv7_reset_read_pmnc();
+	armv7pmu.num_events	= armv7_read_num_pmnc_events();
 	return &armv7pmu;
 }
 
@@ -890,7 +902,7 @@ static const struct arm_pmu *__init armv7_a9_pmu_init(void)
 	armv7pmu.name		= "ARMv7 Cortex-A9";
 	armv7pmu.cache_map	= &armv7_a9_perf_cache_map;
 	armv7pmu.event_map	= &armv7_a9_perf_map;
-	armv7pmu.num_events	= armv7_reset_read_pmnc();
+	armv7pmu.num_events	= armv7_read_num_pmnc_events();
 	return &armv7pmu;
 }
 #else
diff --git a/arch/arm/kernel/perf_event_xscale.c b/arch/arm/kernel/perf_event_xscale.c
index 28cd3b025bc3..39affbe4fdb2 100644
--- a/arch/arm/kernel/perf_event_xscale.c
+++ b/arch/arm/kernel/perf_event_xscale.c
@@ -246,7 +246,7 @@ xscale1pmu_handle_irq(int irq_num, void *dev)
 			continue;
 
 		hwc = &event->hw;
-		armpmu_event_update(event, hwc, idx);
+		armpmu_event_update(event, hwc, idx, 1);
 		data.period = event->hw.last_period;
 		if (!armpmu_event_set_period(event, hwc, idx))
 			continue;
@@ -578,7 +578,7 @@ xscale2pmu_handle_irq(int irq_num, void *dev)
 			continue;
 
 		hwc = &event->hw;
-		armpmu_event_update(event, hwc, idx);
+		armpmu_event_update(event, hwc, idx, 1);
 		data.period = event->hw.last_period;
 		if (!armpmu_event_set_period(event, hwc, idx))
 			continue;
diff --git a/arch/arm/kernel/sleep.S b/arch/arm/kernel/sleep.S
index bfad698a02e7..6398ead9d1c0 100644
--- a/arch/arm/kernel/sleep.S
+++ b/arch/arm/kernel/sleep.S
@@ -119,11 +119,19 @@ ENTRY(cpu_resume)
 #else
 	ldr	r0, sleep_save_sp	@ stack phys addr
 #endif
-	msr	cpsr_c, #PSR_I_BIT | PSR_F_BIT | SVC_MODE @ set SVC, irqs off
+	setmode	PSR_I_BIT | PSR_F_BIT | SVC_MODE, r1  @ set SVC, irqs off
 #ifdef MULTI_CPU
-	ldmia	r0!, {r1, sp, lr, pc}	@ load v:p, stack, return fn, resume fn
+	@ load v:p, stack, return fn, resume fn
+  ARM(	ldmia	r0!, {r1, sp, lr, pc}	)
+THUMB(	ldmia	r0!, {r1, r2, r3, r4}	)
+THUMB(	mov	sp, r2			)
+THUMB(	mov	lr, r3			)
+THUMB(	bx	r4			)
 #else
-	ldmia	r0!, {r1, sp, lr}	@ load v:p, stack, return fn
+	@ load v:p, stack, return fn
+  ARM(	ldmia	r0!, {r1, sp, lr}	)
+THUMB(	ldmia	r0!, {r1, r2, lr}	)
+THUMB(	mov	sp, r2			)
 	b	cpu_do_resume
 #endif
 ENDPROC(cpu_resume)
diff --git a/arch/arm/kernel/swp_emulate.c b/arch/arm/kernel/swp_emulate.c
index 7a5760922914..40ee7e5045e4 100644
--- a/arch/arm/kernel/swp_emulate.c
+++ b/arch/arm/kernel/swp_emulate.c
@@ -158,7 +158,7 @@ static int emulate_swpX(unsigned int address, unsigned int *data,
 
 	if (res == 0) {
 		/*
-		 * Barrier also required between aquiring a lock for a
+		 * Barrier also required between acquiring a lock for a
 		 * protected resource and accessing the resource. Inserted for
 		 * same reason as above.
 		 */
diff --git a/arch/arm/mach-at91/at91cap9_devices.c b/arch/arm/mach-at91/at91cap9_devices.c
index d1f775e86353..9ffbf3a2dfea 100644
--- a/arch/arm/mach-at91/at91cap9_devices.c
+++ b/arch/arm/mach-at91/at91cap9_devices.c
@@ -72,7 +72,7 @@ void __init at91_add_device_usbh(struct at91_usbh_data *data)
 		return;
 
 	if (cpu_is_at91cap9_revB())
-		set_irq_type(AT91CAP9_ID_UHP, IRQ_TYPE_LEVEL_HIGH);
+		irq_set_irq_type(AT91CAP9_ID_UHP, IRQ_TYPE_LEVEL_HIGH);
 
 	/* Enable VBus control for UHP ports */
 	for (i = 0; i < data->ports; i++) {
@@ -157,7 +157,7 @@ static struct platform_device at91_usba_udc_device = {
 void __init at91_add_device_usba(struct usba_platform_data *data)
 {
 	if (cpu_is_at91cap9_revB()) {
-		set_irq_type(AT91CAP9_ID_UDPHS, IRQ_TYPE_LEVEL_HIGH);
+		irq_set_irq_type(AT91CAP9_ID_UDPHS, IRQ_TYPE_LEVEL_HIGH);
 		at91_sys_write(AT91_MATRIX_UDPHS, AT91_MATRIX_SELECT_UDPHS |
 						  AT91_MATRIX_UDPHS_BYPASS_LOCK);
 	}
@@ -861,7 +861,7 @@ void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data)
 		return;
 
 	if (cpu_is_at91cap9_revB())
-		set_irq_type(AT91CAP9_ID_LCDC, IRQ_TYPE_LEVEL_HIGH);
+		irq_set_irq_type(AT91CAP9_ID_LCDC, IRQ_TYPE_LEVEL_HIGH);
 
 	at91_set_A_periph(AT91_PIN_PC1, 0);	/* LCDHSYNC */
 	at91_set_A_periph(AT91_PIN_PC2, 0);	/* LCDDOTCK */
diff --git a/arch/arm/mach-at91/board-carmeva.c b/arch/arm/mach-at91/board-carmeva.c
index 2e74a19874d1..295e1e77fa60 100644
--- a/arch/arm/mach-at91/board-carmeva.c
+++ b/arch/arm/mach-at91/board-carmeva.c
@@ -76,7 +76,7 @@ static struct at91_udc_data __initdata carmeva_udc_data = {
 	.pullup_pin	= AT91_PIN_PD9,
 };
 
-/* FIXME: user dependant */
+/* FIXME: user dependent */
 // static struct at91_cf_data __initdata carmeva_cf_data = {
 //	.det_pin	= AT91_PIN_PB0,
 //	.rst_pin	= AT91_PIN_PC5,
diff --git a/arch/arm/mach-at91/gpio.c b/arch/arm/mach-at91/gpio.c
index af818a21587c..4615528205c8 100644
--- a/arch/arm/mach-at91/gpio.c
+++ b/arch/arm/mach-at91/gpio.c
@@ -287,7 +287,7 @@ static int gpio_irq_set_wake(struct irq_data *d, unsigned state)
 	else
 		wakeups[bank] &= ~mask;
 
-	set_irq_wake(gpio_chip[bank].bank->id, state);
+	irq_set_irq_wake(gpio_chip[bank].bank->id, state);
 
 	return 0;
 }
@@ -375,6 +375,7 @@ static int gpio_irq_type(struct irq_data *d, unsigned type)
 
 static struct irq_chip gpio_irqchip = {
 	.name		= "GPIO",
+	.irq_disable	= gpio_irq_mask,
 	.irq_mask	= gpio_irq_mask,
 	.irq_unmask	= gpio_irq_unmask,
 	.irq_set_type	= gpio_irq_type,
@@ -384,16 +385,14 @@ static struct irq_chip gpio_irqchip = {
 static void gpio_irq_handler(unsigned irq, struct irq_desc *desc)
 {
 	unsigned	pin;
-	struct irq_desc	*gpio;
-	struct at91_gpio_chip *at91_gpio;
-	void __iomem	*pio;
+	struct irq_data *idata = irq_desc_get_irq_data(desc);
+	struct irq_chip *chip = irq_data_get_irq_chip(idata);
+	struct at91_gpio_chip *at91_gpio = irq_data_get_irq_chip_data(idata);
+	void __iomem	*pio = at91_gpio->regbase;
 	u32		isr;
 
-	at91_gpio = get_irq_chip_data(irq);
-	pio = at91_gpio->regbase;
-
 	/* temporarily mask (level sensitive) parent IRQ */
-	desc->irq_data.chip->irq_ack(&desc->irq_data);
+	chip->irq_ack(idata);
 	for (;;) {
 		/* Reading ISR acks pending (edge triggered) GPIO interrupts.
 		 * When there none are pending, we're finished unless we need
@@ -409,27 +408,15 @@ static void gpio_irq_handler(unsigned irq, struct irq_desc *desc)
 		}
 
 		pin = at91_gpio->chip.base;
-		gpio = &irq_desc[pin];
 
 		while (isr) {
-			if (isr & 1) {
-				if (unlikely(gpio->depth)) {
-					/*
-					 * The core ARM interrupt handler lazily disables IRQs so
-					 * another IRQ must be generated before it actually gets
-					 * here to be disabled on the GPIO controller.
-					 */
-					gpio_irq_mask(irq_get_irq_data(pin));
-				}
-				else
-					generic_handle_irq(pin);
-			}
+			if (isr & 1)
+				generic_handle_irq(pin);
 			pin++;
-			gpio++;
 			isr >>= 1;
 		}
 	}
-	desc->irq_data.chip->irq_unmask(&desc->irq_data);
+	chip->irq_unmask(idata);
 	/* now it may re-trigger */
 }
 
@@ -518,14 +505,14 @@ void __init at91_gpio_irq_setup(void)
 		__raw_writel(~0, this->regbase + PIO_IDR);
 
 		for (i = 0, pin = this->chip.base; i < 32; i++, pin++) {
-			lockdep_set_class(&irq_desc[pin].lock, &gpio_lock_class);
+			irq_set_lockdep_class(pin, &gpio_lock_class);
 
 			/*
 			 * Can use the "simple" and not "edge" handler since it's
 			 * shorter, and the AIC handles interrupts sanely.
 			 */
-			set_irq_chip(pin, &gpio_irqchip);
-			set_irq_handler(pin, handle_simple_irq);
+			irq_set_chip_and_handler(pin, &gpio_irqchip,
+						 handle_simple_irq);
 			set_irq_flags(pin, IRQF_VALID);
 		}
 
@@ -536,8 +523,8 @@ void __init at91_gpio_irq_setup(void)
 		if (prev && prev->next == this)
 			continue;
 
-		set_irq_chip_data(id, this);
-		set_irq_chained_handler(id, gpio_irq_handler);
+		irq_set_chip_data(id, this);
+		irq_set_chained_handler(id, gpio_irq_handler);
 	}
 	pr_info("AT91: %d gpio irqs in %d banks\n", pin - PIN_BASE, gpio_banks);
 }
diff --git a/arch/arm/mach-at91/include/mach/at572d940hf.h b/arch/arm/mach-at91/include/mach/at572d940hf.h
index 2d9b0af9c4d5..be510cfc56be 100644
--- a/arch/arm/mach-at91/include/mach/at572d940hf.h
+++ b/arch/arm/mach-at91/include/mach/at572d940hf.h
@@ -89,7 +89,7 @@
 /*
  * System Peripherals (offset from AT91_BASE_SYS)
  */
-#define AT91_SDRAMC	(0xffffea00 - AT91_BASE_SYS)
+#define AT91_SDRAMC0	(0xffffea00 - AT91_BASE_SYS)
 #define AT91_SMC	(0xffffec00 - AT91_BASE_SYS)
 #define AT91_MATRIX	(0xffffee00 - AT91_BASE_SYS)
 #define AT91_AIC	(0xfffff000 - AT91_BASE_SYS)
diff --git a/arch/arm/mach-at91/include/mach/at91_mci.h b/arch/arm/mach-at91/include/mach/at91_mci.h
index 27ac6f550fe3..02182c16a022 100644
--- a/arch/arm/mach-at91/include/mach/at91_mci.h
+++ b/arch/arm/mach-at91/include/mach/at91_mci.h
@@ -102,7 +102,7 @@
 #define		AT91_MCI_RDIRE		(1 << 17)	/* Response Direction Error */
 #define		AT91_MCI_RCRCE		(1 << 18)	/* Response CRC Error */
 #define		AT91_MCI_RENDE		(1 << 19)	/* Response End Bit Error */
-#define		AT91_MCI_RTOE		(1 << 20)	/* Reponse Time-out Error */
+#define		AT91_MCI_RTOE		(1 << 20)	/* Response Time-out Error */
 #define		AT91_MCI_DCRCE		(1 << 21)	/* Data CRC Error */
 #define		AT91_MCI_DTOE		(1 << 22)	/* Data Time-out Error */
 #define		AT91_MCI_OVRE		(1 << 30)	/* Overrun */
diff --git a/arch/arm/mach-at91/include/mach/gpio.h b/arch/arm/mach-at91/include/mach/gpio.h
index ddeb64536756..056dc6674b6b 100644
--- a/arch/arm/mach-at91/include/mach/gpio.h
+++ b/arch/arm/mach-at91/include/mach/gpio.h
@@ -208,7 +208,7 @@ extern void at91_gpio_resume(void);
 
 /*-------------------------------------------------------------------------*/
 
-/* wrappers for "new style" GPIO calls. the old AT91-specfic ones should
+/* wrappers for "new style" GPIO calls. the old AT91-specific ones should
  * eventually be removed (along with this errno.h inclusion), and the
  * gpio request/free calls should probably be implemented.
  */
diff --git a/arch/arm/mach-at91/irq.c b/arch/arm/mach-at91/irq.c
index b56d6b3a4087..9665265ec757 100644
--- a/arch/arm/mach-at91/irq.c
+++ b/arch/arm/mach-at91/irq.c
@@ -143,8 +143,7 @@ void __init at91_aic_init(unsigned int priority[NR_AIC_IRQS])
 		/* Active Low interrupt, with the specified priority */
 		at91_sys_write(AT91_AIC_SMR(i), AT91_AIC_SRCTYPE_LOW | priority[i]);
 
-		set_irq_chip(i, &at91_aic_chip);
-		set_irq_handler(i, handle_level_irq);
+		irq_set_chip_and_handler(i, &at91_aic_chip, handle_level_irq);
 		set_irq_flags(i, IRQF_VALID | IRQF_PROBE);
 
 		/* Perform 8 End Of Interrupt Command to make sure AIC will not Lock out nIRQ */
diff --git a/arch/arm/mach-bcmring/csp/dmac/dmacHw_extra.c b/arch/arm/mach-bcmring/csp/dmac/dmacHw_extra.c
index 77f84b40dda9..a1f328357aa4 100644
--- a/arch/arm/mach-bcmring/csp/dmac/dmacHw_extra.c
+++ b/arch/arm/mach-bcmring/csp/dmac/dmacHw_extra.c
@@ -551,7 +551,7 @@ int dmacHw_calculateDescriptorCount(dmacHw_CONFIG_t *pConfig,	/*   [ IN ] Config
 
 /****************************************************************************/
 /**
-*  @brief   Check the existance of pending descriptor
+*  @brief   Check the existence of pending descriptor
 *
 *  This function confirmes if there is any pending descriptor in the chain
 *  to program the channel
@@ -775,7 +775,7 @@ int dmacHw_setVariableDataDescriptor(dmacHw_HANDLE_t handle,	/*   [ IN ] DMA Cha
 /**
 *  @brief   Read data DMAed to memory
 *
-*  This function will read data that has been DMAed to memory while transfering from:
+*  This function will read data that has been DMAed to memory while transferring from:
 *          - Memory to memory
 *          - Peripheral to memory
 *
@@ -941,7 +941,7 @@ int dmacHw_setControlDescriptor(dmacHw_CONFIG_t *pConfig,	/*   [ IN ] Configurat
 /**
 *  @brief   Sets channel specific user data
 *
-*  This function associates user data to a specif DMA channel
+*  This function associates user data to a specific DMA channel
 *
 */
 /****************************************************************************/
diff --git a/arch/arm/mach-bcmring/dma.c b/arch/arm/mach-bcmring/dma.c
index 8d1baf3f4683..d87ad30dda35 100644
--- a/arch/arm/mach-bcmring/dma.c
+++ b/arch/arm/mach-bcmring/dma.c
@@ -629,7 +629,7 @@ EXPORT_SYMBOL(dma_get_device_descriptor_ring);
 *   Configures a DMA channel.
 *
 *   @return
-*       >= 0    - Initialization was successfull.
+*       >= 0    - Initialization was successful.
 *
 *       -EBUSY  - Device is currently being used.
 *       -ENODEV - Device handed in is invalid.
@@ -673,7 +673,7 @@ static int ConfigChannel(DMA_Handle_t handle)
 /**
 *   Initializes all of the data structures associated with the DMA.
 *   @return
-*       >= 0    - Initialization was successfull.
+*       >= 0    - Initialization was successful.
 *
 *       -EBUSY  - Device is currently being used.
 *       -ENODEV - Device handed in is invalid.
diff --git a/arch/arm/mach-bcmring/include/csp/dmacHw.h b/arch/arm/mach-bcmring/include/csp/dmacHw.h
index 6c8da2b9fc1f..e6a1dc484ca7 100644
--- a/arch/arm/mach-bcmring/include/csp/dmacHw.h
+++ b/arch/arm/mach-bcmring/include/csp/dmacHw.h
@@ -362,7 +362,7 @@ int dmacHw_setControlDescriptor(dmacHw_CONFIG_t *pConfig,	/*  [ IN ] Configurati
 /**
 *  @brief   Read data DMA transferred to memory
 *
-*  This function will read data that has been DMAed to memory while transfering from:
+*  This function will read data that has been DMAed to memory while transferring from:
 *          - Memory to memory
 *          - Peripheral to memory
 *
@@ -446,7 +446,7 @@ void dmacHw_stopTransfer(dmacHw_HANDLE_t handle	/*   [ IN ] DMA Channel handle *
 
 /****************************************************************************/
 /**
-*  @brief   Check the existance of pending descriptor
+*  @brief   Check the existence of pending descriptor
 *
 *  This function confirmes if there is any pending descriptor in the chain
 *  to program the channel
@@ -542,7 +542,7 @@ dmacHw_HANDLE_t dmacHw_getInterruptSource(void);
 /**
 *  @brief   Sets channel specific user data
 *
-*  This function associates user data to a specif DMA channel
+*  This function associates user data to a specific DMA channel
 *
 */
 /****************************************************************************/
diff --git a/arch/arm/mach-bcmring/include/mach/csp/chipcHw_def.h b/arch/arm/mach-bcmring/include/mach/csp/chipcHw_def.h
index 70eaea866cfe..161973385faf 100644
--- a/arch/arm/mach-bcmring/include/mach/csp/chipcHw_def.h
+++ b/arch/arm/mach-bcmring/include/mach/csp/chipcHw_def.h
@@ -180,7 +180,7 @@ typedef enum {
 
 #define chipcHw_XTAL_FREQ_Hz                    25000000	/* Reference clock frequency in Hz */
 
-/* Programable pin defines */
+/* Programmable pin defines */
 #define chipcHw_PIN_GPIO(n)                     ((((n) >= 0) && ((n) < (chipcHw_GPIO_COUNT))) ? (n) : 0xFFFFFFFF)
 									     /* GPIO pin 0 - 60 */
 #define chipcHw_PIN_UARTTXD                     (chipcHw_GPIO_COUNT + 0)	/* UART Transmit */
diff --git a/arch/arm/mach-bcmring/include/mach/csp/chipcHw_inline.h b/arch/arm/mach-bcmring/include/mach/csp/chipcHw_inline.h
index c78833acb37a..03238c299001 100644
--- a/arch/arm/mach-bcmring/include/mach/csp/chipcHw_inline.h
+++ b/arch/arm/mach-bcmring/include/mach/csp/chipcHw_inline.h
@@ -832,7 +832,7 @@ static inline void chipcHw_setUsbDevice(void)
 
 /****************************************************************************/
 /**
-*  @brief   Lower layer funtion to enable/disable a clock of a certain device
+*  @brief   Lower layer function to enable/disable a clock of a certain device
 *
 *  This function enables/disables a core clock
 *
diff --git a/arch/arm/mach-bcmring/include/mach/csp/intcHw_reg.h b/arch/arm/mach-bcmring/include/mach/csp/intcHw_reg.h
index e01fc4607c91..0aeb6a6fe7f8 100644
--- a/arch/arm/mach-bcmring/include/mach/csp/intcHw_reg.h
+++ b/arch/arm/mach-bcmring/include/mach/csp/intcHw_reg.h
@@ -109,9 +109,9 @@
 #define INTCHW_INTC0_DMA0C0               (1<<INTCHW_INTC0_DMA0C0_BITNUM)
 
 /* INTC1 - interrupt controller 1 */
-#define INTCHW_INTC1_DDRVPMP_BITNUM       27	/* DDR and VPM PLL clock phase relationship interupt (Not for A0) */
+#define INTCHW_INTC1_DDRVPMP_BITNUM       27	/* DDR and VPM PLL clock phase relationship interrupt (Not for A0) */
 #define INTCHW_INTC1_DDRVPMT_BITNUM       26	/* DDR and VPM HW phase align timeout interrupt (Not for A0) */
-#define INTCHW_INTC1_DDRP_BITNUM          26	/* DDR and PLL clock phase relationship interupt (For A0 only)) */
+#define INTCHW_INTC1_DDRP_BITNUM          26	/* DDR and PLL clock phase relationship interrupt (For A0 only)) */
 #define INTCHW_INTC1_RTC2_BITNUM          25	/* Real time clock tamper interrupt */
 #define INTCHW_INTC1_VDEC_BITNUM          24	/* Hantro Video Decoder interrupt */
 /* Bits 13-23 are non-secure versions of the corresponding secure bits in SINTC bits 0-10. */
diff --git a/arch/arm/mach-bcmring/include/mach/reg_umi.h b/arch/arm/mach-bcmring/include/mach/reg_umi.h
index 06a355481ea6..0992842caa77 100644
--- a/arch/arm/mach-bcmring/include/mach/reg_umi.h
+++ b/arch/arm/mach-bcmring/include/mach/reg_umi.h
@@ -88,7 +88,7 @@
 /* REG_UMI_FLASH0/1/2_TCR, REG_UMI_SRAM0/1_TCR bits */
 /* Enable wait pin during burst write or read */
 #define REG_UMI_TCR_WAITEN              0x80000000
-/* Enable mem ctrlr to work iwth ext mem of lower freq than AHB clk */
+/* Enable mem ctrlr to work with ext mem of lower freq than AHB clk */
 #define REG_UMI_TCR_LOWFREQ             0x40000000
 /* 1=synch write, 0=async write */
 #define REG_UMI_TCR_MEMTYPE_SYNCWRITE   0x20000000
diff --git a/arch/arm/mach-bcmring/irq.c b/arch/arm/mach-bcmring/irq.c
index 84dcda0d1d9a..c48feaf4e8e9 100644
--- a/arch/arm/mach-bcmring/irq.c
+++ b/arch/arm/mach-bcmring/irq.c
@@ -93,11 +93,11 @@ static void vic_init(void __iomem *base, struct irq_chip *chip,
 	unsigned int i;
 	for (i = 0; i < 32; i++) {
 		unsigned int irq = irq_start + i;
-		set_irq_chip(irq, chip);
-		set_irq_chip_data(irq, base);
+		irq_set_chip(irq, chip);
+		irq_set_chip_data(irq, base);
 
 		if (vic_sources & (1 << i)) {
-			set_irq_handler(irq, handle_level_irq);
+			irq_set_handler(irq, handle_level_irq);
 			set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
 		}
 	}
@@ -119,9 +119,9 @@ void __init bcmring_init_irq(void)
 
 	/* special cases */
 	if (INTCHW_INTC1_GPIO0 & IRQ_INTC1_VALID_MASK) {
-		set_irq_handler(IRQ_GPIO0, handle_simple_irq);
+		irq_set_handler(IRQ_GPIO0, handle_simple_irq);
 	}
 	if (INTCHW_INTC1_GPIO1 & IRQ_INTC1_VALID_MASK) {
-		set_irq_handler(IRQ_GPIO1, handle_simple_irq);
+		irq_set_handler(IRQ_GPIO1, handle_simple_irq);
 	}
 }
diff --git a/arch/arm/mach-clps711x/irq.c b/arch/arm/mach-clps711x/irq.c
index 86da7a1b2bbe..c2eceee645e3 100644
--- a/arch/arm/mach-clps711x/irq.c
+++ b/arch/arm/mach-clps711x/irq.c
@@ -112,13 +112,13 @@ void __init clps711x_init_irq(void)
 
 	for (i = 0; i < NR_IRQS; i++) {
 	        if (INT1_IRQS & (1 << i)) {
-	        	set_irq_handler(i, handle_level_irq);
-	        	set_irq_chip(i, &int1_chip);
+	        	irq_set_chip_and_handler(i, &int1_chip,
+						 handle_level_irq);
 	        	set_irq_flags(i, IRQF_VALID | IRQF_PROBE);
 		}
 		if (INT2_IRQS & (1 << i)) {
-			set_irq_handler(i, handle_level_irq);
-			set_irq_chip(i, &int2_chip);
+			irq_set_chip_and_handler(i, &int2_chip,
+						 handle_level_irq);
 			set_irq_flags(i, IRQF_VALID | IRQF_PROBE);
 		}			
 	}
diff --git a/arch/arm/mach-davinci/board-neuros-osd2.c b/arch/arm/mach-davinci/board-neuros-osd2.c
index 6c389ff1020e..3e7be2de96de 100644
--- a/arch/arm/mach-davinci/board-neuros-osd2.c
+++ b/arch/arm/mach-davinci/board-neuros-osd2.c
@@ -11,7 +11,7 @@
  * DM644X-EVM board. It has:
  * 	DM6446M02 module with 256MB NAND, 256MB RAM, TLV320AIC32 AIC,
  * 	USB, Ethernet, SD/MMC, UART, THS8200, TVP7000 for video.
- * 	Additionaly realtime clock, IR remote control receiver,
+ * 	Additionally realtime clock, IR remote control receiver,
  * 	IR Blaster based on MSP430 (firmware although is different
  * 	from used in DM644X-EVM), internal ATA-6 3.5� HDD drive
  * 	with PATA interface, two muxed red-green leds.
diff --git a/arch/arm/mach-davinci/cp_intc.c b/arch/arm/mach-davinci/cp_intc.c
index 9abc80a86a22..f83152d643c5 100644
--- a/arch/arm/mach-davinci/cp_intc.c
+++ b/arch/arm/mach-davinci/cp_intc.c
@@ -167,9 +167,9 @@ void __init cp_intc_init(void)
 
 	/* Set up genirq dispatching for cp_intc */
 	for (i = 0; i < num_irq; i++) {
-		set_irq_chip(i, &cp_intc_irq_chip);
+		irq_set_chip(i, &cp_intc_irq_chip);
 		set_irq_flags(i, IRQF_VALID | IRQF_PROBE);
-		set_irq_handler(i, handle_edge_irq);
+		irq_set_handler(i, handle_edge_irq);
 	}
 
 	/* Enable global interrupt */
diff --git a/arch/arm/mach-davinci/cpufreq.c b/arch/arm/mach-davinci/cpufreq.c
index 4a68c2b1ec11..0a95be1512bb 100644
--- a/arch/arm/mach-davinci/cpufreq.c
+++ b/arch/arm/mach-davinci/cpufreq.c
@@ -167,7 +167,7 @@ static int davinci_cpu_init(struct cpufreq_policy *policy)
 	/*
 	 * Time measurement across the target() function yields ~1500-1800us
 	 * time taken with no drivers on notification list.
-	 * Setting the latency to 2000 us to accomodate addition of drivers
+	 * Setting the latency to 2000 us to accommodate addition of drivers
 	 * to pre/post change notification list.
 	 */
 	policy->cpuinfo.transition_latency = 2000 * 1000;
diff --git a/arch/arm/mach-davinci/da850.c b/arch/arm/mach-davinci/da850.c
index 68fe4c289d77..b95b9196deed 100644
--- a/arch/arm/mach-davinci/da850.c
+++ b/arch/arm/mach-davinci/da850.c
@@ -1123,7 +1123,7 @@ void __init da850_init(void)
 	 * This helps keeping the peripherals on this domain insulated
 	 * from CPU frequency changes caused by DVFS. The firmware sets
 	 * both PLL0 and PLL1 to the same frequency so, there should not
-	 * be any noticible change even in non-DVFS use cases.
+	 * be any noticeable change even in non-DVFS use cases.
 	 */
 	da850_set_async3_src(1);
 
diff --git a/arch/arm/mach-davinci/dm355.c b/arch/arm/mach-davinci/dm355.c
index 76364d1345df..f68012239641 100644
--- a/arch/arm/mach-davinci/dm355.c
+++ b/arch/arm/mach-davinci/dm355.c
@@ -314,7 +314,7 @@ static struct clk timer2_clk = {
 	.name = "timer2",
 	.parent = &pll1_aux_clk,
 	.lpsc = DAVINCI_LPSC_TIMER2,
-	.usecount = 1,              /* REVISIT: why cant' this be disabled? */
+	.usecount = 1,              /* REVISIT: why can't' this be disabled? */
 };
 
 static struct clk timer3_clk = {
diff --git a/arch/arm/mach-davinci/dm644x.c b/arch/arm/mach-davinci/dm644x.c
index 9a2376b3137c..5f8a65424184 100644
--- a/arch/arm/mach-davinci/dm644x.c
+++ b/arch/arm/mach-davinci/dm644x.c
@@ -274,7 +274,7 @@ static struct clk timer2_clk = {
 	.name = "timer2",
 	.parent = &pll1_aux_clk,
 	.lpsc = DAVINCI_LPSC_TIMER2,
-	.usecount = 1,              /* REVISIT: why cant' this be disabled? */
+	.usecount = 1,              /* REVISIT: why can't' this be disabled? */
 };
 
 static struct clk_lookup dm644x_clks[] = {
diff --git a/arch/arm/mach-davinci/gpio.c b/arch/arm/mach-davinci/gpio.c
index 20d66e5e4663..a0b838894ac9 100644
--- a/arch/arm/mach-davinci/gpio.c
+++ b/arch/arm/mach-davinci/gpio.c
@@ -62,7 +62,7 @@ static inline struct davinci_gpio_regs __iomem *irq2regs(int irq)
 {
 	struct davinci_gpio_regs __iomem *g;
 
-	g = (__force struct davinci_gpio_regs __iomem *)get_irq_chip_data(irq);
+	g = (__force struct davinci_gpio_regs __iomem *)irq_get_chip_data(irq);
 
 	return g;
 }
@@ -208,7 +208,7 @@ pure_initcall(davinci_gpio_setup);
 static void gpio_irq_disable(struct irq_data *d)
 {
 	struct davinci_gpio_regs __iomem *g = irq2regs(d->irq);
-	u32 mask = (u32) irq_data_get_irq_data(d);
+	u32 mask = (u32) irq_data_get_irq_handler_data(d);
 
 	__raw_writel(mask, &g->clr_falling);
 	__raw_writel(mask, &g->clr_rising);
@@ -217,8 +217,8 @@ static void gpio_irq_disable(struct irq_data *d)
 static void gpio_irq_enable(struct irq_data *d)
 {
 	struct davinci_gpio_regs __iomem *g = irq2regs(d->irq);
-	u32 mask = (u32) irq_data_get_irq_data(d);
-	unsigned status = irq_desc[d->irq].status;
+	u32 mask = (u32) irq_data_get_irq_handler_data(d);
+	unsigned status = irqd_get_trigger_type(d);
 
 	status &= IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_EDGE_RISING;
 	if (!status)
@@ -233,21 +233,11 @@ static void gpio_irq_enable(struct irq_data *d)
 static int gpio_irq_type(struct irq_data *d, unsigned trigger)
 {
 	struct davinci_gpio_regs __iomem *g = irq2regs(d->irq);
-	u32 mask = (u32) irq_data_get_irq_data(d);
+	u32 mask = (u32) irq_data_get_irq_handler_data(d);
 
 	if (trigger & ~(IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_EDGE_RISING))
 		return -EINVAL;
 
-	irq_desc[d->irq].status &= ~IRQ_TYPE_SENSE_MASK;
-	irq_desc[d->irq].status |= trigger;
-
-	/* don't enable the IRQ if it's currently disabled */
-	if (irq_desc[d->irq].depth == 0) {
-		__raw_writel(mask, (trigger & IRQ_TYPE_EDGE_FALLING)
-			     ? &g->set_falling : &g->clr_falling);
-		__raw_writel(mask, (trigger & IRQ_TYPE_EDGE_RISING)
-			     ? &g->set_rising : &g->clr_rising);
-	}
 	return 0;
 }
 
@@ -256,6 +246,7 @@ static struct irq_chip gpio_irqchip = {
 	.irq_enable	= gpio_irq_enable,
 	.irq_disable	= gpio_irq_disable,
 	.irq_set_type	= gpio_irq_type,
+	.flags		= IRQCHIP_SET_TYPE_MASKED,
 };
 
 static void
@@ -285,7 +276,7 @@ gpio_irq_handler(unsigned irq, struct irq_desc *desc)
 			status >>= 16;
 
 		/* now demux them to the right lowlevel handler */
-		n = (int)get_irq_data(irq);
+		n = (int)irq_get_handler_data(irq);
 		while (status) {
 			res = ffs(status);
 			n += res;
@@ -323,7 +314,7 @@ static int gpio_to_irq_unbanked(struct gpio_chip *chip, unsigned offset)
 static int gpio_irq_type_unbanked(struct irq_data *d, unsigned trigger)
 {
 	struct davinci_gpio_regs __iomem *g = irq2regs(d->irq);
-	u32 mask = (u32) irq_data_get_irq_data(d);
+	u32 mask = (u32) irq_data_get_irq_handler_data(d);
 
 	if (trigger & ~(IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_EDGE_RISING))
 		return -EINVAL;
@@ -395,7 +386,7 @@ static int __init davinci_gpio_irq_setup(void)
 
 		/* AINTC handles mask/unmask; GPIO handles triggering */
 		irq = bank_irq;
-		gpio_irqchip_unbanked = *get_irq_desc_chip(irq_to_desc(irq));
+		gpio_irqchip_unbanked = *irq_get_chip(irq);
 		gpio_irqchip_unbanked.name = "GPIO-AINTC";
 		gpio_irqchip_unbanked.irq_set_type = gpio_irq_type_unbanked;
 
@@ -406,10 +397,10 @@ static int __init davinci_gpio_irq_setup(void)
 
 		/* set the direct IRQs up to use that irqchip */
 		for (gpio = 0; gpio < soc_info->gpio_unbanked; gpio++, irq++) {
-			set_irq_chip(irq, &gpio_irqchip_unbanked);
-			set_irq_data(irq, (void *) __gpio_mask(gpio));
-			set_irq_chip_data(irq, (__force void *) g);
-			irq_desc[irq].status |= IRQ_TYPE_EDGE_BOTH;
+			irq_set_chip(irq, &gpio_irqchip_unbanked);
+			irq_set_handler_data(irq, (void *)__gpio_mask(gpio));
+			irq_set_chip_data(irq, (__force void *)g);
+			irq_set_status_flags(irq, IRQ_TYPE_EDGE_BOTH);
 		}
 
 		goto done;
@@ -430,15 +421,15 @@ static int __init davinci_gpio_irq_setup(void)
 		__raw_writel(~0, &g->clr_rising);
 
 		/* set up all irqs in this bank */
-		set_irq_chained_handler(bank_irq, gpio_irq_handler);
-		set_irq_chip_data(bank_irq, (__force void *) g);
-		set_irq_data(bank_irq, (void *) irq);
+		irq_set_chained_handler(bank_irq, gpio_irq_handler);
+		irq_set_chip_data(bank_irq, (__force void *)g);
+		irq_set_handler_data(bank_irq, (void *)irq);
 
 		for (i = 0; i < 16 && gpio < ngpio; i++, irq++, gpio++) {
-			set_irq_chip(irq, &gpio_irqchip);
-			set_irq_chip_data(irq, (__force void *) g);
-			set_irq_data(irq, (void *) __gpio_mask(gpio));
-			set_irq_handler(irq, handle_simple_irq);
+			irq_set_chip(irq, &gpio_irqchip);
+			irq_set_chip_data(irq, (__force void *)g);
+			irq_set_handler_data(irq, (void *)__gpio_mask(gpio));
+			irq_set_handler(irq, handle_simple_irq);
 			set_irq_flags(irq, IRQF_VALID);
 		}
 
diff --git a/arch/arm/mach-davinci/include/mach/cputype.h b/arch/arm/mach-davinci/include/mach/cputype.h
index cea6b8972043..957fb87e832e 100644
--- a/arch/arm/mach-davinci/include/mach/cputype.h
+++ b/arch/arm/mach-davinci/include/mach/cputype.h
@@ -4,7 +4,7 @@
  * Author: Kevin Hilman, Deep Root Systems, LLC
  *
  * Defines the cpu_is_*() macros for runtime detection of DaVinci
- * device type.  In addtion, if support for a given device is not
+ * device type.  In addition, if support for a given device is not
  * compiled in to the kernel, the macros return 0 so that
  * resulting code can be optimized out.
  *
diff --git a/arch/arm/mach-davinci/irq.c b/arch/arm/mach-davinci/irq.c
index 5e05c9b64e1f..e6269a6e0014 100644
--- a/arch/arm/mach-davinci/irq.c
+++ b/arch/arm/mach-davinci/irq.c
@@ -154,11 +154,11 @@ void __init davinci_irq_init(void)
 
 	/* set up genirq dispatch for ARM INTC */
 	for (i = 0; i < davinci_soc_info.intc_irq_num; i++) {
-		set_irq_chip(i, &davinci_irq_chip_0);
+		irq_set_chip(i, &davinci_irq_chip_0);
 		set_irq_flags(i, IRQF_VALID | IRQF_PROBE);
 		if (i != IRQ_TINT1_TINT34)
-			set_irq_handler(i, handle_edge_irq);
+			irq_set_handler(i, handle_edge_irq);
 		else
-			set_irq_handler(i, handle_level_irq);
+			irq_set_handler(i, handle_level_irq);
 	}
 }
diff --git a/arch/arm/mach-dove/include/mach/dove.h b/arch/arm/mach-dove/include/mach/dove.h
index e5fcdd3f5bf5..b20ec9af7882 100644
--- a/arch/arm/mach-dove/include/mach/dove.h
+++ b/arch/arm/mach-dove/include/mach/dove.h
@@ -136,7 +136,7 @@
 #define DOVE_MPP_GENERAL_VIRT_BASE	(DOVE_SB_REGS_VIRT_BASE | 0xe803c)
 #define  DOVE_AU1_SPDIFO_GPIO_EN	(1 << 1)
 #define  DOVE_NAND_GPIO_EN		(1 << 0)
-#define DOVE_MPP_CTRL4_VIRT_BASE	(DOVE_GPIO_VIRT_BASE + 0x40)
+#define DOVE_MPP_CTRL4_VIRT_BASE	(DOVE_GPIO_LO_VIRT_BASE + 0x40)
 #define  DOVE_SPI_GPIO_SEL		(1 << 5)
 #define  DOVE_UART1_GPIO_SEL		(1 << 4)
 #define  DOVE_AU1_GPIO_SEL		(1 << 3)
diff --git a/arch/arm/mach-dove/irq.c b/arch/arm/mach-dove/irq.c
index 101707fa2e2c..f07fd16e0c9b 100644
--- a/arch/arm/mach-dove/irq.c
+++ b/arch/arm/mach-dove/irq.c
@@ -86,8 +86,7 @@ static void pmu_irq_handler(unsigned int irq, struct irq_desc *desc)
 		if (!(cause & (1 << irq)))
 			continue;
 		irq = pmu_to_irq(irq);
-		desc = irq_desc + irq;
-		desc_handle_irq(irq, desc);
+		generic_handle_irq(irq);
 	}
 }
 
@@ -103,14 +102,14 @@ void __init dove_init_irq(void)
 	 */
 	orion_gpio_init(0, 32, DOVE_GPIO_LO_VIRT_BASE, 0,
 			IRQ_DOVE_GPIO_START);
-	set_irq_chained_handler(IRQ_DOVE_GPIO_0_7, gpio_irq_handler);
-	set_irq_chained_handler(IRQ_DOVE_GPIO_8_15, gpio_irq_handler);
-	set_irq_chained_handler(IRQ_DOVE_GPIO_16_23, gpio_irq_handler);
-	set_irq_chained_handler(IRQ_DOVE_GPIO_24_31, gpio_irq_handler);
+	irq_set_chained_handler(IRQ_DOVE_GPIO_0_7, gpio_irq_handler);
+	irq_set_chained_handler(IRQ_DOVE_GPIO_8_15, gpio_irq_handler);
+	irq_set_chained_handler(IRQ_DOVE_GPIO_16_23, gpio_irq_handler);
+	irq_set_chained_handler(IRQ_DOVE_GPIO_24_31, gpio_irq_handler);
 
 	orion_gpio_init(32, 32, DOVE_GPIO_HI_VIRT_BASE, 0,
 			IRQ_DOVE_GPIO_START + 32);
-	set_irq_chained_handler(IRQ_DOVE_HIGH_GPIO, gpio_irq_handler);
+	irq_set_chained_handler(IRQ_DOVE_HIGH_GPIO, gpio_irq_handler);
 
 	orion_gpio_init(64, 8, DOVE_GPIO2_VIRT_BASE, 0,
 			IRQ_DOVE_GPIO_START + 64);
@@ -122,10 +121,9 @@ void __init dove_init_irq(void)
 	writel(0, PMU_INTERRUPT_CAUSE);
 
 	for (i = IRQ_DOVE_PMU_START; i < NR_IRQS; i++) {
-		set_irq_chip(i, &pmu_irq_chip);
-		set_irq_handler(i, handle_level_irq);
-		irq_desc[i].status |= IRQ_LEVEL;
+		irq_set_chip_and_handler(i, &pmu_irq_chip, handle_level_irq);
+		irq_set_status_flags(i, IRQ_LEVEL);
 		set_irq_flags(i, IRQF_VALID);
 	}
-	set_irq_chained_handler(IRQ_DOVE_PMU, pmu_irq_handler);
+	irq_set_chained_handler(IRQ_DOVE_PMU, pmu_irq_handler);
 }
diff --git a/arch/arm/mach-dove/mpp.c b/arch/arm/mach-dove/mpp.c
index 71db2bdf2f28..c66c76346904 100644
--- a/arch/arm/mach-dove/mpp.c
+++ b/arch/arm/mach-dove/mpp.c
@@ -147,9 +147,6 @@ void __init dove_mpp_conf(unsigned int *mpp_list)
 	u32 pmu_sig_ctrl[PMU_SIG_REGS];
 	int i;
 
-	/* Initialize gpiolib. */
-	orion_gpio_init();
-
 	for (i = 0; i < MPP_NR_REGS; i++)
 		mpp_ctrl[i] = readl(MPP_CTRL(i));
 
diff --git a/arch/arm/mach-ebsa110/core.c b/arch/arm/mach-ebsa110/core.c
index 7df083f37fa7..087bc771ac23 100644
--- a/arch/arm/mach-ebsa110/core.c
+++ b/arch/arm/mach-ebsa110/core.c
@@ -66,8 +66,8 @@ static void __init ebsa110_init_irq(void)
 	local_irq_restore(flags);
 
 	for (irq = 0; irq < NR_IRQS; irq++) {
-		set_irq_chip(irq, &ebsa110_irq_chip);
-		set_irq_handler(irq, handle_level_irq);
+		irq_set_chip_and_handler(irq, &ebsa110_irq_chip,
+					 handle_level_irq);
 		set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
 	}
 }
diff --git a/arch/arm/mach-ep93xx/gpio.c b/arch/arm/mach-ep93xx/gpio.c
index a889fa7c3ba1..a5a9ff70b198 100644
--- a/arch/arm/mach-ep93xx/gpio.c
+++ b/arch/arm/mach-ep93xx/gpio.c
@@ -101,7 +101,7 @@ static void ep93xx_gpio_ab_irq_handler(unsigned int irq, struct irq_desc *desc)
 static void ep93xx_gpio_f_irq_handler(unsigned int irq, struct irq_desc *desc)
 {
 	/*
-	 * map discontiguous hw irq range to continous sw irq range:
+	 * map discontiguous hw irq range to continuous sw irq range:
 	 *
 	 *  IRQ_EP93XX_GPIO{0..7}MUX -> gpio_to_irq(EP93XX_GPIO_LINE_F({0..7})
 	 */
@@ -117,7 +117,7 @@ static void ep93xx_gpio_irq_ack(struct irq_data *d)
 	int port = line >> 3;
 	int port_mask = 1 << (line & 7);
 
-	if ((irq_desc[d->irq].status & IRQ_TYPE_SENSE_MASK) == IRQ_TYPE_EDGE_BOTH) {
+	if (irqd_get_trigger_type(d) == IRQ_TYPE_EDGE_BOTH) {
 		gpio_int_type2[port] ^= port_mask; /* switch edge direction */
 		ep93xx_gpio_update_int_params(port);
 	}
@@ -131,7 +131,7 @@ static void ep93xx_gpio_irq_mask_ack(struct irq_data *d)
 	int port = line >> 3;
 	int port_mask = 1 << (line & 7);
 
-	if ((irq_desc[d->irq].status & IRQ_TYPE_SENSE_MASK) == IRQ_TYPE_EDGE_BOTH)
+	if (irqd_get_trigger_type(d) == IRQ_TYPE_EDGE_BOTH)
 		gpio_int_type2[port] ^= port_mask; /* switch edge direction */
 
 	gpio_int_unmasked[port] &= ~port_mask;
@@ -165,10 +165,10 @@ static void ep93xx_gpio_irq_unmask(struct irq_data *d)
  */
 static int ep93xx_gpio_irq_type(struct irq_data *d, unsigned int type)
 {
-	struct irq_desc *desc = irq_desc + d->irq;
 	const int gpio = irq_to_gpio(d->irq);
 	const int port = gpio >> 3;
 	const int port_mask = 1 << (gpio & 7);
+	irq_flow_handler_t handler;
 
 	gpio_direction_input(gpio);
 
@@ -176,22 +176,22 @@ static int ep93xx_gpio_irq_type(struct irq_data *d, unsigned int type)
 	case IRQ_TYPE_EDGE_RISING:
 		gpio_int_type1[port] |= port_mask;
 		gpio_int_type2[port] |= port_mask;
-		desc->handle_irq = handle_edge_irq;
+		handler = handle_edge_irq;
 		break;
 	case IRQ_TYPE_EDGE_FALLING:
 		gpio_int_type1[port] |= port_mask;
 		gpio_int_type2[port] &= ~port_mask;
-		desc->handle_irq = handle_edge_irq;
+		handler = handle_edge_irq;
 		break;
 	case IRQ_TYPE_LEVEL_HIGH:
 		gpio_int_type1[port] &= ~port_mask;
 		gpio_int_type2[port] |= port_mask;
-		desc->handle_irq = handle_level_irq;
+		handler = handle_level_irq;
 		break;
 	case IRQ_TYPE_LEVEL_LOW:
 		gpio_int_type1[port] &= ~port_mask;
 		gpio_int_type2[port] &= ~port_mask;
-		desc->handle_irq = handle_level_irq;
+		handler = handle_level_irq;
 		break;
 	case IRQ_TYPE_EDGE_BOTH:
 		gpio_int_type1[port] |= port_mask;
@@ -200,17 +200,16 @@ static int ep93xx_gpio_irq_type(struct irq_data *d, unsigned int type)
 			gpio_int_type2[port] &= ~port_mask; /* falling */
 		else
 			gpio_int_type2[port] |= port_mask; /* rising */
-		desc->handle_irq = handle_edge_irq;
+		handler = handle_edge_irq;
 		break;
 	default:
 		pr_err("failed to set irq type %d for gpio %d\n", type, gpio);
 		return -EINVAL;
 	}
 
-	gpio_int_enabled[port] |= port_mask;
+	__irq_set_handler_locked(d->irq, handler);
 
-	desc->status &= ~IRQ_TYPE_SENSE_MASK;
-	desc->status |= type & IRQ_TYPE_SENSE_MASK;
+	gpio_int_enabled[port] |= port_mask;
 
 	ep93xx_gpio_update_int_params(port);
 
@@ -232,20 +231,29 @@ void __init ep93xx_gpio_init_irq(void)
 
 	for (gpio_irq = gpio_to_irq(0);
 	     gpio_irq <= gpio_to_irq(EP93XX_GPIO_LINE_MAX_IRQ); ++gpio_irq) {
-		set_irq_chip(gpio_irq, &ep93xx_gpio_irq_chip);
-		set_irq_handler(gpio_irq, handle_level_irq);
+		irq_set_chip_and_handler(gpio_irq, &ep93xx_gpio_irq_chip,
+					 handle_level_irq);
 		set_irq_flags(gpio_irq, IRQF_VALID);
 	}
 
-	set_irq_chained_handler(IRQ_EP93XX_GPIO_AB, ep93xx_gpio_ab_irq_handler);
-	set_irq_chained_handler(IRQ_EP93XX_GPIO0MUX, ep93xx_gpio_f_irq_handler);
-	set_irq_chained_handler(IRQ_EP93XX_GPIO1MUX, ep93xx_gpio_f_irq_handler);
-	set_irq_chained_handler(IRQ_EP93XX_GPIO2MUX, ep93xx_gpio_f_irq_handler);
-	set_irq_chained_handler(IRQ_EP93XX_GPIO3MUX, ep93xx_gpio_f_irq_handler);
-	set_irq_chained_handler(IRQ_EP93XX_GPIO4MUX, ep93xx_gpio_f_irq_handler);
-	set_irq_chained_handler(IRQ_EP93XX_GPIO5MUX, ep93xx_gpio_f_irq_handler);
-	set_irq_chained_handler(IRQ_EP93XX_GPIO6MUX, ep93xx_gpio_f_irq_handler);
-	set_irq_chained_handler(IRQ_EP93XX_GPIO7MUX, ep93xx_gpio_f_irq_handler);
+	irq_set_chained_handler(IRQ_EP93XX_GPIO_AB,
+				ep93xx_gpio_ab_irq_handler);
+	irq_set_chained_handler(IRQ_EP93XX_GPIO0MUX,
+				ep93xx_gpio_f_irq_handler);
+	irq_set_chained_handler(IRQ_EP93XX_GPIO1MUX,
+				ep93xx_gpio_f_irq_handler);
+	irq_set_chained_handler(IRQ_EP93XX_GPIO2MUX,
+				ep93xx_gpio_f_irq_handler);
+	irq_set_chained_handler(IRQ_EP93XX_GPIO3MUX,
+				ep93xx_gpio_f_irq_handler);
+	irq_set_chained_handler(IRQ_EP93XX_GPIO4MUX,
+				ep93xx_gpio_f_irq_handler);
+	irq_set_chained_handler(IRQ_EP93XX_GPIO5MUX,
+				ep93xx_gpio_f_irq_handler);
+	irq_set_chained_handler(IRQ_EP93XX_GPIO6MUX,
+				ep93xx_gpio_f_irq_handler);
+	irq_set_chained_handler(IRQ_EP93XX_GPIO7MUX,
+				ep93xx_gpio_f_irq_handler);
 }
 
 
@@ -360,52 +368,14 @@ static void ep93xx_gpio_dbg_show(struct seq_file *s, struct gpio_chip *chip)
 	gpio = ep93xx_chip->chip.base;
 	for (i = 0; i < chip->ngpio; i++, gpio++) {
 		int is_out = data_dir_reg & (1 << i);
+		int irq = gpio_to_irq(gpio);
 
-		seq_printf(s, " %s%d gpio-%-3d (%-12s) %s %s",
+		seq_printf(s, " %s%d gpio-%-3d (%-12s) %s %s %s\n",
 				chip->label, i, gpio,
 				gpiochip_is_requested(chip, i) ? : "",
 				is_out ? "out" : "in ",
-				(data_reg & (1 << i)) ? "hi" : "lo");
-
-		if (!is_out) {
-			int irq = gpio_to_irq(gpio);
-			struct irq_desc *desc = irq_desc + irq;
-
-			if (irq >= 0 && desc->action) {
-				char *trigger;
-
-				switch (desc->status & IRQ_TYPE_SENSE_MASK) {
-				case IRQ_TYPE_NONE:
-					trigger = "(default)";
-					break;
-				case IRQ_TYPE_EDGE_FALLING:
-					trigger = "edge-falling";
-					break;
-				case IRQ_TYPE_EDGE_RISING:
-					trigger = "edge-rising";
-					break;
-				case IRQ_TYPE_EDGE_BOTH:
-					trigger = "edge-both";
-					break;
-				case IRQ_TYPE_LEVEL_HIGH:
-					trigger = "level-high";
-					break;
-				case IRQ_TYPE_LEVEL_LOW:
-					trigger = "level-low";
-					break;
-				default:
-					trigger = "?trigger?";
-					break;
-				}
-
-				seq_printf(s, " irq-%d %s%s",
-						irq, trigger,
-						(desc->status & IRQ_WAKEUP)
-							? " wakeup" : "");
-			}
-		}
-
-		seq_printf(s, "\n");
+				(data_reg & (1<<  i)) ? "hi" : "lo",
+				(!is_out && irq>= 0) ? "(interrupt)" : "");
 	}
 }
 
diff --git a/arch/arm/mach-exynos4/Kconfig b/arch/arm/mach-exynos4/Kconfig
index a021b5240bba..e849f67be47d 100644
--- a/arch/arm/mach-exynos4/Kconfig
+++ b/arch/arm/mach-exynos4/Kconfig
@@ -20,6 +20,11 @@ config EXYNOS4_MCT
 	help
 	  Use MCT (Multi Core Timer) as kernel timers
 
+config EXYNOS4_DEV_AHCI
+	bool
+	help
+	  Compile in platform device definitions for AHCI
+
 config EXYNOS4_DEV_PD
 	bool
 	help
@@ -134,9 +139,9 @@ config MACH_ARMLEX4210
 	select S3C_DEV_HSMMC
 	select S3C_DEV_HSMMC2
 	select S3C_DEV_HSMMC3
+	select EXYNOS4_DEV_AHCI
 	select EXYNOS4_DEV_SYSMMU
 	select EXYNOS4_SETUP_SDHCI
-	select SATA_AHCI_PLATFORM
 	help
 	  Machine support for Samsung ARMLEX4210 based on EXYNOS4210
 
diff --git a/arch/arm/mach-exynos4/Makefile b/arch/arm/mach-exynos4/Makefile
index b8f0e7d82d7e..9be104f63c0b 100644
--- a/arch/arm/mach-exynos4/Makefile
+++ b/arch/arm/mach-exynos4/Makefile
@@ -39,6 +39,7 @@ obj-$(CONFIG_MACH_NURI)			+= mach-nuri.o
 # device support
 
 obj-y					+= dev-audio.o
+obj-$(CONFIG_EXYNOS4_DEV_AHCI)		+= dev-ahci.o
 obj-$(CONFIG_EXYNOS4_DEV_PD)		+= dev-pd.o
 obj-$(CONFIG_EXYNOS4_DEV_SYSMMU)	+= dev-sysmmu.o
 
@@ -53,4 +54,3 @@ obj-$(CONFIG_EXYNOS4_SETUP_I2C7)	+= setup-i2c7.o
 obj-$(CONFIG_EXYNOS4_SETUP_KEYPAD)	+= setup-keypad.o
 obj-$(CONFIG_EXYNOS4_SETUP_SDHCI)	+= setup-sdhci.o
 obj-$(CONFIG_EXYNOS4_SETUP_SDHCI_GPIO)	+= setup-sdhci-gpio.o
-obj-$(CONFIG_SATA_AHCI_PLATFORM)	+= dev-ahci.o
diff --git a/arch/arm/mach-exynos4/include/mach/debug-macro.S b/arch/arm/mach-exynos4/include/mach/debug-macro.S
index 58bbd049a6c4..a442ef861167 100644
--- a/arch/arm/mach-exynos4/include/mach/debug-macro.S
+++ b/arch/arm/mach-exynos4/include/mach/debug-macro.S
@@ -21,8 +21,8 @@
 	 */
 
 	.macro addruart, rp, rv
-		ldreq	\rp, = S3C_PA_UART
-		ldrne	\rv, = S3C_VA_UART
+		ldr	\rp, = S3C_PA_UART
+		ldr	\rv, = S3C_VA_UART
 #if CONFIG_DEBUG_S3C_UART != 0
 		add	\rp, \rp, #(0x10000 * CONFIG_DEBUG_S3C_UART)
 		add	\rv, \rv, #(0x10000 * CONFIG_DEBUG_S3C_UART)
diff --git a/arch/arm/mach-exynos4/include/mach/gpio.h b/arch/arm/mach-exynos4/include/mach/gpio.h
index 939728b38d48..be9266b10fdb 100644
--- a/arch/arm/mach-exynos4/include/mach/gpio.h
+++ b/arch/arm/mach-exynos4/include/mach/gpio.h
@@ -18,7 +18,7 @@
 #define gpio_cansleep	__gpio_cansleep
 #define gpio_to_irq	__gpio_to_irq
 
-/* Practically, GPIO banks upto GPZ are the configurable gpio banks */
+/* Practically, GPIO banks up to GPZ are the configurable gpio banks */
 
 /* GPIO bank sizes */
 #define EXYNOS4_GPIO_A0_NR	(8)
diff --git a/arch/arm/mach-exynos4/irq-combiner.c b/arch/arm/mach-exynos4/irq-combiner.c
index 31618d91ce15..f488b66d6806 100644
--- a/arch/arm/mach-exynos4/irq-combiner.c
+++ b/arch/arm/mach-exynos4/irq-combiner.c
@@ -54,8 +54,8 @@ static void combiner_unmask_irq(struct irq_data *data)
 
 static void combiner_handle_cascade_irq(unsigned int irq, struct irq_desc *desc)
 {
-	struct combiner_chip_data *chip_data = get_irq_data(irq);
-	struct irq_chip *chip = get_irq_chip(irq);
+	struct combiner_chip_data *chip_data = irq_get_handler_data(irq);
+	struct irq_chip *chip = irq_get_chip(irq);
 	unsigned int cascade_irq, combiner_irq;
 	unsigned long status;
 
@@ -93,9 +93,9 @@ void __init combiner_cascade_irq(unsigned int combiner_nr, unsigned int irq)
 {
 	if (combiner_nr >= MAX_COMBINER_NR)
 		BUG();
-	if (set_irq_data(irq, &combiner_data[combiner_nr]) != 0)
+	if (irq_set_handler_data(irq, &combiner_data[combiner_nr]) != 0)
 		BUG();
-	set_irq_chained_handler(irq, combiner_handle_cascade_irq);
+	irq_set_chained_handler(irq, combiner_handle_cascade_irq);
 }
 
 void __init combiner_init(unsigned int combiner_nr, void __iomem *base,
@@ -119,9 +119,8 @@ void __init combiner_init(unsigned int combiner_nr, void __iomem *base,
 
 	for (i = irq_start; i < combiner_data[combiner_nr].irq_offset
 				+ MAX_IRQ_IN_COMBINER; i++) {
-		set_irq_chip(i, &combiner_chip);
-		set_irq_chip_data(i, &combiner_data[combiner_nr]);
-		set_irq_handler(i, handle_level_irq);
+		irq_set_chip_and_handler(i, &combiner_chip, handle_level_irq);
+		irq_set_chip_data(i, &combiner_data[combiner_nr]);
 		set_irq_flags(i, IRQF_VALID | IRQF_PROBE);
 	}
 }
diff --git a/arch/arm/mach-exynos4/irq-eint.c b/arch/arm/mach-exynos4/irq-eint.c
index 4f7ad4a796e4..9d87d2ac7f68 100644
--- a/arch/arm/mach-exynos4/irq-eint.c
+++ b/arch/arm/mach-exynos4/irq-eint.c
@@ -190,8 +190,8 @@ static void exynos4_irq_demux_eint16_31(unsigned int irq, struct irq_desc *desc)
 
 static void exynos4_irq_eint0_15(unsigned int irq, struct irq_desc *desc)
 {
-	u32 *irq_data = get_irq_data(irq);
-	struct irq_chip *chip = get_irq_chip(irq);
+	u32 *irq_data = irq_get_handler_data(irq);
+	struct irq_chip *chip = irq_get_chip(irq);
 
 	chip->irq_mask(&desc->irq_data);
 
@@ -208,18 +208,19 @@ int __init exynos4_init_irq_eint(void)
 	int irq;
 
 	for (irq = 0 ; irq <= 31 ; irq++) {
-		set_irq_chip(IRQ_EINT(irq), &exynos4_irq_eint);
-		set_irq_handler(IRQ_EINT(irq), handle_level_irq);
+		irq_set_chip_and_handler(IRQ_EINT(irq), &exynos4_irq_eint,
+					 handle_level_irq);
 		set_irq_flags(IRQ_EINT(irq), IRQF_VALID);
 	}
 
-	set_irq_chained_handler(IRQ_EINT16_31, exynos4_irq_demux_eint16_31);
+	irq_set_chained_handler(IRQ_EINT16_31, exynos4_irq_demux_eint16_31);
 
 	for (irq = 0 ; irq <= 15 ; irq++) {
 		eint0_15_data[irq] = IRQ_EINT(irq);
 
-		set_irq_data(exynos4_get_irq_nr(irq), &eint0_15_data[irq]);
-		set_irq_chained_handler(exynos4_get_irq_nr(irq),
+		irq_set_handler_data(exynos4_get_irq_nr(irq),
+				     &eint0_15_data[irq]);
+		irq_set_chained_handler(exynos4_get_irq_nr(irq),
 					exynos4_irq_eint0_15);
 	}
 
diff --git a/arch/arm/mach-exynos4/mach-smdkc210.c b/arch/arm/mach-exynos4/mach-smdkc210.c
index 25a256818122..e645f7a955f0 100644
--- a/arch/arm/mach-exynos4/mach-smdkc210.c
+++ b/arch/arm/mach-exynos4/mach-smdkc210.c
@@ -125,7 +125,7 @@ static struct resource smdkc210_smsc911x_resources[] = {
 };
 
 static struct smsc911x_platform_config smsc9215_config = {
-	.irq_polarity	= SMSC911X_IRQ_POLARITY_ACTIVE_HIGH,
+	.irq_polarity	= SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
 	.irq_type	= SMSC911X_IRQ_TYPE_PUSH_PULL,
 	.flags		= SMSC911X_USE_16BIT | SMSC911X_FORCE_INTERNAL_PHY,
 	.phy_interface	= PHY_INTERFACE_MODE_MII,
diff --git a/arch/arm/mach-exynos4/mach-smdkv310.c b/arch/arm/mach-exynos4/mach-smdkv310.c
index 88e0275143be..152676471b67 100644
--- a/arch/arm/mach-exynos4/mach-smdkv310.c
+++ b/arch/arm/mach-exynos4/mach-smdkv310.c
@@ -127,7 +127,7 @@ static struct resource smdkv310_smsc911x_resources[] = {
 };
 
 static struct smsc911x_platform_config smsc9215_config = {
-	.irq_polarity	= SMSC911X_IRQ_POLARITY_ACTIVE_HIGH,
+	.irq_polarity	= SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
 	.irq_type	= SMSC911X_IRQ_TYPE_PUSH_PULL,
 	.flags		= SMSC911X_USE_16BIT | SMSC911X_FORCE_INTERNAL_PHY,
 	.phy_interface	= PHY_INTERFACE_MODE_MII,
diff --git a/arch/arm/mach-exynos4/mct.c b/arch/arm/mach-exynos4/mct.c
index af82a8fbb68b..14ac10b7ec02 100644
--- a/arch/arm/mach-exynos4/mct.c
+++ b/arch/arm/mach-exynos4/mct.c
@@ -276,7 +276,7 @@ static void exynos4_mct_tick_start(unsigned long cycles,
 	/* update interrupt count buffer */
 	exynos4_mct_write(tmp, mevt->base + MCT_L_ICNTB_OFFSET);
 
-	/* enable MCT tick interupt */
+	/* enable MCT tick interrupt */
 	exynos4_mct_write(0x1, mevt->base + MCT_L_INT_ENB_OFFSET);
 
 	tmp = __raw_readl(mevt->base + MCT_L_TCON_OFFSET);
diff --git a/arch/arm/mach-exynos4/setup-sdhci-gpio.c b/arch/arm/mach-exynos4/setup-sdhci-gpio.c
index 1b3d3a2de95c..e8d08bf8965a 100644
--- a/arch/arm/mach-exynos4/setup-sdhci-gpio.c
+++ b/arch/arm/mach-exynos4/setup-sdhci-gpio.c
@@ -38,14 +38,14 @@ void exynos4_setup_sdhci0_cfg_gpio(struct platform_device *dev, int width)
 	switch (width) {
 	case 8:
 		for (gpio = EXYNOS4_GPK1(3); gpio <= EXYNOS4_GPK1(6); gpio++) {
-			/* Data pin GPK1[3:6] to special-funtion 3 */
+			/* Data pin GPK1[3:6] to special-function 3 */
 			s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(3));
 			s3c_gpio_setpull(gpio, S3C_GPIO_PULL_UP);
 			s5p_gpio_set_drvstr(gpio, S5P_GPIO_DRVSTR_LV4);
 		}
 	case 4:
 		for (gpio = EXYNOS4_GPK0(3); gpio <= EXYNOS4_GPK0(6); gpio++) {
-			/* Data pin GPK0[3:6] to special-funtion 2 */
+			/* Data pin GPK0[3:6] to special-function 2 */
 			s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2));
 			s3c_gpio_setpull(gpio, S3C_GPIO_PULL_UP);
 			s5p_gpio_set_drvstr(gpio, S5P_GPIO_DRVSTR_LV4);
diff --git a/arch/arm/mach-exynos4/setup-sdhci.c b/arch/arm/mach-exynos4/setup-sdhci.c
index 85f9433d4836..1e83f8cf236d 100644
--- a/arch/arm/mach-exynos4/setup-sdhci.c
+++ b/arch/arm/mach-exynos4/setup-sdhci.c
@@ -35,7 +35,7 @@ void exynos4_setup_sdhci_cfg_card(struct platform_device *dev, void __iomem *r,
 {
 	u32 ctrl2, ctrl3;
 
-	/* don't need to alter anything acording to card-type */
+	/* don't need to alter anything according to card-type */
 
 	ctrl2 = readl(r + S3C_SDHCI_CONTROL2);
 
diff --git a/arch/arm/mach-footbridge/common.c b/arch/arm/mach-footbridge/common.c
index 84c5f258f2d8..38a44f9b9da2 100644
--- a/arch/arm/mach-footbridge/common.c
+++ b/arch/arm/mach-footbridge/common.c
@@ -102,8 +102,7 @@ static void __init __fb_init_irq(void)
 	*CSR_FIQ_DISABLE = -1;
 
 	for (irq = _DC21285_IRQ(0); irq < _DC21285_IRQ(20); irq++) {
-		set_irq_chip(irq, &fb_chip);
-		set_irq_handler(irq, handle_level_irq);
+		irq_set_chip_and_handler(irq, &fb_chip, handle_level_irq);
 		set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
 	}
 }
diff --git a/arch/arm/mach-footbridge/dc21285-timer.c b/arch/arm/mach-footbridge/dc21285-timer.c
index a921fe92b858..5f1f9867fc70 100644
--- a/arch/arm/mach-footbridge/dc21285-timer.c
+++ b/arch/arm/mach-footbridge/dc21285-timer.c
@@ -30,7 +30,7 @@ static int cksrc_dc21285_enable(struct clocksource *cs)
 	return 0;
 }
 
-static int cksrc_dc21285_disable(struct clocksource *cs)
+static void cksrc_dc21285_disable(struct clocksource *cs)
 {
 	*CSR_TIMER2_CNTL = 0;
 }
diff --git a/arch/arm/mach-footbridge/isa-irq.c b/arch/arm/mach-footbridge/isa-irq.c
index de7a5cb5dbe1..c3a0abbc9049 100644
--- a/arch/arm/mach-footbridge/isa-irq.c
+++ b/arch/arm/mach-footbridge/isa-irq.c
@@ -151,14 +151,14 @@ void __init isa_init_irq(unsigned int host_irq)
 
 	if (host_irq != (unsigned int)-1) {
 		for (irq = _ISA_IRQ(0); irq < _ISA_IRQ(8); irq++) {
-			set_irq_chip(irq, &isa_lo_chip);
-			set_irq_handler(irq, handle_level_irq);
+			irq_set_chip_and_handler(irq, &isa_lo_chip,
+						 handle_level_irq);
 			set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
 		}
 
 		for (irq = _ISA_IRQ(8); irq < _ISA_IRQ(16); irq++) {
-			set_irq_chip(irq, &isa_hi_chip);
-			set_irq_handler(irq, handle_level_irq);
+			irq_set_chip_and_handler(irq, &isa_hi_chip,
+						 handle_level_irq);
 			set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
 		}
 
@@ -166,7 +166,7 @@ void __init isa_init_irq(unsigned int host_irq)
 		request_resource(&ioport_resource, &pic2_resource);
 		setup_irq(IRQ_ISA_CASCADE, &irq_cascade);
 
-		set_irq_chained_handler(host_irq, isa_irq_handler);
+		irq_set_chained_handler(host_irq, isa_irq_handler);
 
 		/*
 		 * On the NetWinder, don't automatically
diff --git a/arch/arm/mach-gemini/gpio.c b/arch/arm/mach-gemini/gpio.c
index fa3d333f21e1..fdc7ef1391d3 100644
--- a/arch/arm/mach-gemini/gpio.c
+++ b/arch/arm/mach-gemini/gpio.c
@@ -127,8 +127,8 @@ static int gpio_set_irq_type(struct irq_data *d, unsigned int type)
 
 static void gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
 {
+	unsigned int port = (unsigned int)irq_desc_get_handler_data(desc);
 	unsigned int gpio_irq_no, irq_stat;
-	unsigned int port = (unsigned int)get_irq_data(irq);
 
 	irq_stat = __raw_readl(GPIO_BASE(port) + GPIO_INT_STAT);
 
@@ -138,9 +138,7 @@ static void gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
 		if ((irq_stat & 1) == 0)
 			continue;
 
-		BUG_ON(!(irq_desc[gpio_irq_no].handle_irq));
-		irq_desc[gpio_irq_no].handle_irq(gpio_irq_no,
-				&irq_desc[gpio_irq_no]);
+		generic_handle_irq(gpio_irq_no);
 	}
 }
 
@@ -219,13 +217,13 @@ void __init gemini_gpio_init(void)
 
 		for (j = GPIO_IRQ_BASE + i * 32;
 		     j < GPIO_IRQ_BASE + (i + 1) * 32; j++) {
-			set_irq_chip(j, &gpio_irq_chip);
-			set_irq_handler(j, handle_edge_irq);
+			irq_set_chip_and_handler(j, &gpio_irq_chip,
+						 handle_edge_irq);
 			set_irq_flags(j, IRQF_VALID);
 		}
 
-		set_irq_chained_handler(IRQ_GPIO(i), gpio_irq_handler);
-		set_irq_data(IRQ_GPIO(i), (void *)i);
+		irq_set_chained_handler(IRQ_GPIO(i), gpio_irq_handler);
+		irq_set_handler_data(IRQ_GPIO(i), (void *)i);
 	}
 
 	BUG_ON(gpiochip_add(&gemini_gpio_chip));
diff --git a/arch/arm/mach-gemini/irq.c b/arch/arm/mach-gemini/irq.c
index 96bc227dd849..9485a8fdf851 100644
--- a/arch/arm/mach-gemini/irq.c
+++ b/arch/arm/mach-gemini/irq.c
@@ -81,13 +81,13 @@ void __init gemini_init_irq(void)
 	request_resource(&iomem_resource, &irq_resource);
 
 	for (i = 0; i < NR_IRQS; i++) {
-		set_irq_chip(i, &gemini_irq_chip);
+		irq_set_chip(i, &gemini_irq_chip);
 		if((i >= IRQ_TIMER1 && i <= IRQ_TIMER3) || (i >= IRQ_SERIRQ0 && i <= IRQ_SERIRQ1)) {
-			set_irq_handler(i, handle_edge_irq);
+			irq_set_handler(i, handle_edge_irq);
 			mode |= 1 << i;
 			level |= 1 << i;
 		} else {			
-			set_irq_handler(i, handle_level_irq);
+			irq_set_handler(i, handle_level_irq);
 		}
 		set_irq_flags(i, IRQF_VALID | IRQF_PROBE);
 	}
diff --git a/arch/arm/mach-h720x/common.c b/arch/arm/mach-h720x/common.c
index 1f28c90932c7..51d4e44ab973 100644
--- a/arch/arm/mach-h720x/common.c
+++ b/arch/arm/mach-h720x/common.c
@@ -199,29 +199,29 @@ void __init h720x_init_irq (void)
 
 	/* Initialize global IRQ's, fast path */
 	for (irq = 0; irq < NR_GLBL_IRQS; irq++) {
-		set_irq_chip(irq, &h720x_global_chip);
-		set_irq_handler(irq, handle_level_irq);
+		irq_set_chip_and_handler(irq, &h720x_global_chip,
+					 handle_level_irq);
 		set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
 	}
 
 	/* Initialize multiplexed IRQ's, slow path */
 	for (irq = IRQ_CHAINED_GPIOA(0) ; irq <= IRQ_CHAINED_GPIOD(31); irq++) {
-		set_irq_chip(irq, &h720x_gpio_chip);
-		set_irq_handler(irq, handle_edge_irq);
+		irq_set_chip_and_handler(irq, &h720x_gpio_chip,
+					 handle_edge_irq);
 		set_irq_flags(irq, IRQF_VALID );
 	}
-	set_irq_chained_handler(IRQ_GPIOA, h720x_gpioa_demux_handler);
-	set_irq_chained_handler(IRQ_GPIOB, h720x_gpiob_demux_handler);
-	set_irq_chained_handler(IRQ_GPIOC, h720x_gpioc_demux_handler);
-	set_irq_chained_handler(IRQ_GPIOD, h720x_gpiod_demux_handler);
+	irq_set_chained_handler(IRQ_GPIOA, h720x_gpioa_demux_handler);
+	irq_set_chained_handler(IRQ_GPIOB, h720x_gpiob_demux_handler);
+	irq_set_chained_handler(IRQ_GPIOC, h720x_gpioc_demux_handler);
+	irq_set_chained_handler(IRQ_GPIOD, h720x_gpiod_demux_handler);
 
 #ifdef CONFIG_CPU_H7202
 	for (irq = IRQ_CHAINED_GPIOE(0) ; irq <= IRQ_CHAINED_GPIOE(31); irq++) {
-		set_irq_chip(irq, &h720x_gpio_chip);
-		set_irq_handler(irq, handle_edge_irq);
+		irq_set_chip_and_handler(irq, &h720x_gpio_chip,
+					 handle_edge_irq);
 		set_irq_flags(irq, IRQF_VALID );
 	}
-	set_irq_chained_handler(IRQ_GPIOE, h720x_gpioe_demux_handler);
+	irq_set_chained_handler(IRQ_GPIOE, h720x_gpioe_demux_handler);
 #endif
 
 	/* Enable multiplexed irq's */
diff --git a/arch/arm/mach-h720x/cpu-h7202.c b/arch/arm/mach-h720x/cpu-h7202.c
index ac3f91442376..c37d570b852d 100644
--- a/arch/arm/mach-h720x/cpu-h7202.c
+++ b/arch/arm/mach-h720x/cpu-h7202.c
@@ -141,13 +141,18 @@ h7202_timer_interrupt(int irq, void *dev_id)
 /*
  * mask multiplexed timer IRQs
  */
-static void inline mask_timerx_irq(struct irq_data *d)
+static void inline __mask_timerx_irq(unsigned int irq)
 {
 	unsigned int bit;
-	bit = 2 << ((d->irq == IRQ_TIMER64B) ? 4 : (d->irq - IRQ_TIMER1));
+	bit = 2 << ((irq == IRQ_TIMER64B) ? 4 : (irq - IRQ_TIMER1));
 	CPU_REG (TIMER_VIRT, TIMER_TOPCTRL) &= ~bit;
 }
 
+static void inline mask_timerx_irq(struct irq_data *d)
+{
+	__mask_timerx_irq(d->irq);
+}
+
 /*
  * unmask multiplexed timer IRQs
  */
@@ -196,12 +201,12 @@ void __init h7202_init_irq (void)
 
 	for (irq = IRQ_TIMER1;
 	                  irq < IRQ_CHAINED_TIMERX(NR_TIMERX_IRQS); irq++) {
-		mask_timerx_irq(irq);
-		set_irq_chip(irq, &h7202_timerx_chip);
-		set_irq_handler(irq, handle_edge_irq);
+		__mask_timerx_irq(irq);
+		irq_set_chip_and_handler(irq, &h7202_timerx_chip,
+					 handle_edge_irq);
 		set_irq_flags(irq, IRQF_VALID );
 	}
-	set_irq_chained_handler(IRQ_TIMERX, h7202_timerx_demux_handler);
+	irq_set_chained_handler(IRQ_TIMERX, h7202_timerx_demux_handler);
 
 	h720x_init_irq();
 }
diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig
index 5eec099e0c72..56b930a13443 100644
--- a/arch/arm/mach-imx/Kconfig
+++ b/arch/arm/mach-imx/Kconfig
@@ -255,6 +255,7 @@ config MACH_IMX27_VISSTRIM_M10
 	bool "Vista Silicon i.MX27 Visstrim_m10"
 	select SOC_IMX27
 	select IMX_HAVE_PLATFORM_IMX_I2C
+	select IMX_HAVE_PLATFORM_IMX_SSI
 	select IMX_HAVE_PLATFORM_IMX_UART
 	select IMX_HAVE_PLATFORM_MXC_MMC
 	select IMX_HAVE_PLATFORM_MXC_EHCI
diff --git a/arch/arm/mach-imx/eukrea_mbimxsd25-baseboard.c b/arch/arm/mach-imx/eukrea_mbimxsd25-baseboard.c
index cb705c28de02..6269053505f7 100644
--- a/arch/arm/mach-imx/eukrea_mbimxsd25-baseboard.c
+++ b/arch/arm/mach-imx/eukrea_mbimxsd25-baseboard.c
@@ -34,6 +34,7 @@
 #include <mach/mx25.h>
 #include <mach/imx-uart.h>
 #include <mach/audmux.h>
+#include <mach/esdhc.h>
 
 #include "devices-imx25.h"
 
@@ -242,6 +243,11 @@ struct imx_ssi_platform_data eukrea_mbimxsd_ssi_pdata __initconst = {
 	.flags = IMX_SSI_SYN | IMX_SSI_NET | IMX_SSI_USE_I2S_SLAVE,
 };
 
+static struct esdhc_platform_data sd1_pdata = {
+	.cd_gpio = GPIO_SD1CD,
+	.wp_gpio = -EINVAL,
+};
+
 /*
  * system init for baseboard usage. Will be called by cpuimx25 init.
  *
@@ -275,7 +281,7 @@ void __init eukrea_mbimxsd25_baseboard_init(void)
 	imx25_add_imx_ssi(0, &eukrea_mbimxsd_ssi_pdata);
 
 	imx25_add_flexcan1(NULL);
-	imx25_add_sdhci_esdhc_imx(0, NULL);
+	imx25_add_sdhci_esdhc_imx(0, &sd1_pdata);
 
 	gpio_request(GPIO_LED1, "LED1");
 	gpio_direction_output(GPIO_LED1, 1);
diff --git a/arch/arm/mach-iop13xx/irq.c b/arch/arm/mach-iop13xx/irq.c
index a233470dd10c..bc739701c301 100644
--- a/arch/arm/mach-iop13xx/irq.c
+++ b/arch/arm/mach-iop13xx/irq.c
@@ -224,15 +224,15 @@ void __init iop13xx_init_irq(void)
 
 	for(i = 0; i <= IRQ_IOP13XX_HPI; i++) {
 		if (i < 32)
-			set_irq_chip(i, &iop13xx_irqchip1);
+			irq_set_chip(i, &iop13xx_irqchip1);
 		else if (i < 64)
-			set_irq_chip(i, &iop13xx_irqchip2);
+			irq_set_chip(i, &iop13xx_irqchip2);
 		else if (i < 96)
-			set_irq_chip(i, &iop13xx_irqchip3);
+			irq_set_chip(i, &iop13xx_irqchip3);
 		else
-			set_irq_chip(i, &iop13xx_irqchip4);
+			irq_set_chip(i, &iop13xx_irqchip4);
 
-		set_irq_handler(i, handle_level_irq);
+		irq_set_handler(i, handle_level_irq);
 		set_irq_flags(i, IRQF_VALID | IRQF_PROBE);
 	}
 
diff --git a/arch/arm/mach-iop13xx/msi.c b/arch/arm/mach-iop13xx/msi.c
index c9c02e3698bc..560d5b2dec22 100644
--- a/arch/arm/mach-iop13xx/msi.c
+++ b/arch/arm/mach-iop13xx/msi.c
@@ -118,7 +118,7 @@ static void iop13xx_msi_handler(unsigned int irq, struct irq_desc *desc)
 
 void __init iop13xx_msi_init(void)
 {
-	set_irq_chained_handler(IRQ_IOP13XX_INBD_MSI, iop13xx_msi_handler);
+	irq_set_chained_handler(IRQ_IOP13XX_INBD_MSI, iop13xx_msi_handler);
 }
 
 /*
@@ -178,7 +178,7 @@ int arch_setup_msi_irq(struct pci_dev *pdev, struct msi_desc *desc)
 	if (irq < 0)
 		return irq;
 
-	set_irq_msi(irq, desc);
+	irq_set_msi_desc(irq, desc);
 
 	msg.address_hi = 0x0;
 	msg.address_lo = IOP13XX_MU_MIMR_PCI;
@@ -187,7 +187,7 @@ int arch_setup_msi_irq(struct pci_dev *pdev, struct msi_desc *desc)
 	msg.data = (id << IOP13XX_MU_MIMR_CORE_SELECT) | (irq & 0x7f);
 
 	write_msi_msg(irq, &msg);
-	set_irq_chip_and_handler(irq, &iop13xx_msi_chip, handle_simple_irq);
+	irq_set_chip_and_handler(irq, &iop13xx_msi_chip, handle_simple_irq);
 
 	return 0;
 }
diff --git a/arch/arm/mach-iop13xx/pci.c b/arch/arm/mach-iop13xx/pci.c
index 773ea0c95b9f..ba3dae352a2d 100644
--- a/arch/arm/mach-iop13xx/pci.c
+++ b/arch/arm/mach-iop13xx/pci.c
@@ -225,7 +225,7 @@ static u32 iop13xx_atue_cfg_address(struct pci_bus *bus, int devfn, int where)
 /* This routine checks the status of the last configuration cycle.  If an error
  * was detected it returns >0, else it returns a 0.  The errors being checked
  * are parity, master abort, target abort (master and target).  These types of
- * errors occure during a config cycle where there is no device, like during
+ * errors occur during a config cycle where there is no device, like during
  * the discovery stage.
  */
 static int iop13xx_atux_pci_status(int clear)
@@ -332,7 +332,7 @@ static struct pci_ops iop13xx_atux_ops = {
 /* This routine checks the status of the last configuration cycle.  If an error
  * was detected it returns >0, else it returns a 0.  The errors being checked
  * are parity, master abort, target abort (master and target).  These types of
- * errors occure during a config cycle where there is no device, like during
+ * errors occur during a config cycle where there is no device, like during
  * the discovery stage.
  */
 static int iop13xx_atue_pci_status(int clear)
diff --git a/arch/arm/mach-iop32x/irq.c b/arch/arm/mach-iop32x/irq.c
index d3426a120599..d7ee2789d890 100644
--- a/arch/arm/mach-iop32x/irq.c
+++ b/arch/arm/mach-iop32x/irq.c
@@ -68,8 +68,7 @@ void __init iop32x_init_irq(void)
 		*IOP3XX_PCIIRSR = 0x0f;
 
 	for (i = 0; i < NR_IRQS; i++) {
-		set_irq_chip(i, &ext_chip);
-		set_irq_handler(i, handle_level_irq);
+		irq_set_chip_and_handler(i, &ext_chip, handle_level_irq);
 		set_irq_flags(i, IRQF_VALID | IRQF_PROBE);
 	}
 }
diff --git a/arch/arm/mach-iop33x/irq.c b/arch/arm/mach-iop33x/irq.c
index 0ff2f74363a5..f7f5d3e451c7 100644
--- a/arch/arm/mach-iop33x/irq.c
+++ b/arch/arm/mach-iop33x/irq.c
@@ -110,8 +110,9 @@ void __init iop33x_init_irq(void)
 		*IOP3XX_PCIIRSR = 0x0f;
 
 	for (i = 0; i < NR_IRQS; i++) {
-		set_irq_chip(i, (i < 32) ? &iop33x_irqchip1 : &iop33x_irqchip2);
-		set_irq_handler(i, handle_level_irq);
+		irq_set_chip_and_handler(i,
+					 (i < 32) ? &iop33x_irqchip1 : &iop33x_irqchip2,
+					 handle_level_irq);
 		set_irq_flags(i, IRQF_VALID | IRQF_PROBE);
 	}
 }
diff --git a/arch/arm/mach-ixp2000/core.c b/arch/arm/mach-ixp2000/core.c
index 5fc4e064b650..4068166c8993 100644
--- a/arch/arm/mach-ixp2000/core.c
+++ b/arch/arm/mach-ixp2000/core.c
@@ -476,8 +476,8 @@ void __init ixp2000_init_irq(void)
 	 */
 	for (irq = IRQ_IXP2000_SOFT_INT; irq <= IRQ_IXP2000_THDB3; irq++) {
 		if ((1 << irq) & IXP2000_VALID_IRQ_MASK) {
-			set_irq_chip(irq, &ixp2000_irq_chip);
-			set_irq_handler(irq, handle_level_irq);
+			irq_set_chip_and_handler(irq, &ixp2000_irq_chip,
+						 handle_level_irq);
 			set_irq_flags(irq, IRQF_VALID);
 		} else set_irq_flags(irq, 0);
 	}
@@ -485,21 +485,21 @@ void __init ixp2000_init_irq(void)
 	for (irq = IRQ_IXP2000_DRAM0_MIN_ERR; irq <= IRQ_IXP2000_SP_INT; irq++) {
 		if((1 << (irq - IRQ_IXP2000_DRAM0_MIN_ERR)) &
 				IXP2000_VALID_ERR_IRQ_MASK) {
-			set_irq_chip(irq, &ixp2000_err_irq_chip);
-			set_irq_handler(irq, handle_level_irq);
+			irq_set_chip_and_handler(irq, &ixp2000_err_irq_chip,
+						 handle_level_irq);
 			set_irq_flags(irq, IRQF_VALID);
 		}
 		else
 			set_irq_flags(irq, 0);
 	}
-	set_irq_chained_handler(IRQ_IXP2000_ERRSUM, ixp2000_err_irq_handler);
+	irq_set_chained_handler(IRQ_IXP2000_ERRSUM, ixp2000_err_irq_handler);
 
 	for (irq = IRQ_IXP2000_GPIO0; irq <= IRQ_IXP2000_GPIO7; irq++) {
-		set_irq_chip(irq, &ixp2000_GPIO_irq_chip);
-		set_irq_handler(irq, handle_level_irq);
+		irq_set_chip_and_handler(irq, &ixp2000_GPIO_irq_chip,
+					 handle_level_irq);
 		set_irq_flags(irq, IRQF_VALID);
 	}
-	set_irq_chained_handler(IRQ_IXP2000_GPIO, ixp2000_GPIO_irq_handler);
+	irq_set_chained_handler(IRQ_IXP2000_GPIO, ixp2000_GPIO_irq_handler);
 
 	/*
 	 * Enable PCI irqs.  The actual PCI[AB] decoding is done in
@@ -508,8 +508,8 @@ void __init ixp2000_init_irq(void)
 	 */
 	ixp2000_reg_write(IXP2000_IRQ_ENABLE_SET, (1 << IRQ_IXP2000_PCI));
 	for (irq = IRQ_IXP2000_PCIA; irq <= IRQ_IXP2000_PCIB; irq++) {
-		set_irq_chip(irq, &ixp2000_pci_irq_chip);
-		set_irq_handler(irq, handle_level_irq);
+		irq_set_chip_and_handler(irq, &ixp2000_pci_irq_chip,
+					 handle_level_irq);
 		set_irq_flags(irq, IRQF_VALID);
 	}
 }
diff --git a/arch/arm/mach-ixp2000/ixdp2x00.c b/arch/arm/mach-ixp2000/ixdp2x00.c
index 7d90d3f13ee8..235638f800e5 100644
--- a/arch/arm/mach-ixp2000/ixdp2x00.c
+++ b/arch/arm/mach-ixp2000/ixdp2x00.c
@@ -158,13 +158,13 @@ void __init ixdp2x00_init_irq(volatile unsigned long *stat_reg, volatile unsigne
 	*board_irq_mask = 0xffffffff;
 
 	for(irq = IXP2000_BOARD_IRQ(0); irq < IXP2000_BOARD_IRQ(board_irq_count); irq++) {
-		set_irq_chip(irq, &ixdp2x00_cpld_irq_chip);
-		set_irq_handler(irq, handle_level_irq);
+		irq_set_chip_and_handler(irq, &ixdp2x00_cpld_irq_chip,
+					 handle_level_irq);
 		set_irq_flags(irq, IRQF_VALID);
 	}
 
 	/* Hook into PCI interrupt */
-	set_irq_chained_handler(IRQ_IXP2000_PCIB, ixdp2x00_irq_handler);
+	irq_set_chained_handler(IRQ_IXP2000_PCIB, ixdp2x00_irq_handler);
 }
 
 /*************************************************************************
diff --git a/arch/arm/mach-ixp2000/ixdp2x01.c b/arch/arm/mach-ixp2000/ixdp2x01.c
index 34b1b2af37c8..84835b209557 100644
--- a/arch/arm/mach-ixp2000/ixdp2x01.c
+++ b/arch/arm/mach-ixp2000/ixdp2x01.c
@@ -115,8 +115,8 @@ void __init ixdp2x01_init_irq(void)
 
 	for (irq = NR_IXP2000_IRQS; irq < NR_IXDP2X01_IRQS; irq++) {
 		if (irq & valid_irq_mask) {
-			set_irq_chip(irq, &ixdp2x01_irq_chip);
-			set_irq_handler(irq, handle_level_irq);
+			irq_set_chip_and_handler(irq, &ixdp2x01_irq_chip,
+						 handle_level_irq);
 			set_irq_flags(irq, IRQF_VALID);
 		} else {
 			set_irq_flags(irq, 0);
@@ -124,7 +124,7 @@ void __init ixdp2x01_init_irq(void)
 	}
 
 	/* Hook into PCI interrupts */
-	set_irq_chained_handler(IRQ_IXP2000_PCIB, ixdp2x01_irq_handler);
+	irq_set_chained_handler(IRQ_IXP2000_PCIB, ixdp2x01_irq_handler);
 }
 
 
diff --git a/arch/arm/mach-ixp23xx/core.c b/arch/arm/mach-ixp23xx/core.c
index 9c8a33903216..a1bee33d183e 100644
--- a/arch/arm/mach-ixp23xx/core.c
+++ b/arch/arm/mach-ixp23xx/core.c
@@ -289,12 +289,12 @@ static void ixp23xx_config_irq(unsigned int irq, enum ixp23xx_irq_type type)
 {
 	switch (type) {
 	case IXP23XX_IRQ_LEVEL:
-		set_irq_chip(irq, &ixp23xx_irq_level_chip);
-		set_irq_handler(irq, handle_level_irq);
+		irq_set_chip_and_handler(irq, &ixp23xx_irq_level_chip,
+					 handle_level_irq);
 		break;
 	case IXP23XX_IRQ_EDGE:
-		set_irq_chip(irq, &ixp23xx_irq_edge_chip);
-		set_irq_handler(irq, handle_edge_irq);
+		irq_set_chip_and_handler(irq, &ixp23xx_irq_edge_chip,
+					 handle_edge_irq);
 		break;
 	}
 	set_irq_flags(irq, IRQF_VALID);
@@ -324,12 +324,12 @@ void __init ixp23xx_init_irq(void)
 	}
 
 	for (irq = IRQ_IXP23XX_INTA; irq <= IRQ_IXP23XX_INTB; irq++) {
-		set_irq_chip(irq, &ixp23xx_pci_irq_chip);
-		set_irq_handler(irq, handle_level_irq);
+		irq_set_chip_and_handler(irq, &ixp23xx_pci_irq_chip,
+					 handle_level_irq);
 		set_irq_flags(irq, IRQF_VALID);
 	}
 
-	set_irq_chained_handler(IRQ_IXP23XX_PCI_INT_RPH, pci_handler);
+	irq_set_chained_handler(IRQ_IXP23XX_PCI_INT_RPH, pci_handler);
 }
 
 
diff --git a/arch/arm/mach-ixp23xx/ixdp2351.c b/arch/arm/mach-ixp23xx/ixdp2351.c
index 181116aa6591..8dcba17c81e7 100644
--- a/arch/arm/mach-ixp23xx/ixdp2351.c
+++ b/arch/arm/mach-ixp23xx/ixdp2351.c
@@ -136,8 +136,8 @@ void __init ixdp2351_init_irq(void)
 	     irq++) {
 		if (IXDP2351_INTA_IRQ_MASK(irq) & IXDP2351_INTA_IRQ_VALID) {
 			set_irq_flags(irq, IRQF_VALID);
-			set_irq_handler(irq, handle_level_irq);
-			set_irq_chip(irq, &ixdp2351_inta_chip);
+			irq_set_chip_and_handler(irq, &ixdp2351_inta_chip,
+						 handle_level_irq);
 		}
 	}
 
@@ -147,13 +147,13 @@ void __init ixdp2351_init_irq(void)
 	     irq++) {
 		if (IXDP2351_INTB_IRQ_MASK(irq) & IXDP2351_INTB_IRQ_VALID) {
 			set_irq_flags(irq, IRQF_VALID);
-			set_irq_handler(irq, handle_level_irq);
-			set_irq_chip(irq, &ixdp2351_intb_chip);
+			irq_set_chip_and_handler(irq, &ixdp2351_intb_chip,
+						 handle_level_irq);
 		}
 	}
 
-	set_irq_chained_handler(IRQ_IXP23XX_INTA, ixdp2351_inta_handler);
-	set_irq_chained_handler(IRQ_IXP23XX_INTB, ixdp2351_intb_handler);
+	irq_set_chained_handler(IRQ_IXP23XX_INTA, ixdp2351_inta_handler);
+	irq_set_chained_handler(IRQ_IXP23XX_INTB, ixdp2351_intb_handler);
 }
 
 /*
diff --git a/arch/arm/mach-ixp23xx/roadrunner.c b/arch/arm/mach-ixp23xx/roadrunner.c
index 76c61ba73218..8fe0c6273262 100644
--- a/arch/arm/mach-ixp23xx/roadrunner.c
+++ b/arch/arm/mach-ixp23xx/roadrunner.c
@@ -110,8 +110,8 @@ static int __init roadrunner_map_irq(struct pci_dev *dev, u8 idsel, u8 pin)
 
 static void __init roadrunner_pci_preinit(void)
 {
-	set_irq_type(IRQ_ROADRUNNER_PCI_INTC, IRQ_TYPE_LEVEL_LOW);
-	set_irq_type(IRQ_ROADRUNNER_PCI_INTD, IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(IRQ_ROADRUNNER_PCI_INTC, IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(IRQ_ROADRUNNER_PCI_INTD, IRQ_TYPE_LEVEL_LOW);
 
 	ixp23xx_pci_preinit();
 }
diff --git a/arch/arm/mach-ixp4xx/avila-pci.c b/arch/arm/mach-ixp4xx/avila-pci.c
index 845e1b500548..162043ff29ff 100644
--- a/arch/arm/mach-ixp4xx/avila-pci.c
+++ b/arch/arm/mach-ixp4xx/avila-pci.c
@@ -39,10 +39,10 @@
 
 void __init avila_pci_preinit(void)
 {
-	set_irq_type(IXP4XX_GPIO_IRQ(INTA), IRQ_TYPE_LEVEL_LOW);
-	set_irq_type(IXP4XX_GPIO_IRQ(INTB), IRQ_TYPE_LEVEL_LOW);
-	set_irq_type(IXP4XX_GPIO_IRQ(INTC), IRQ_TYPE_LEVEL_LOW);
-	set_irq_type(IXP4XX_GPIO_IRQ(INTD), IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(IXP4XX_GPIO_IRQ(INTA), IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(IXP4XX_GPIO_IRQ(INTB), IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(IXP4XX_GPIO_IRQ(INTC), IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(IXP4XX_GPIO_IRQ(INTD), IRQ_TYPE_LEVEL_LOW);
 	ixp4xx_pci_preinit();
 }
 
diff --git a/arch/arm/mach-ixp4xx/common.c b/arch/arm/mach-ixp4xx/common.c
index 9fd894271d5d..ed19bc314318 100644
--- a/arch/arm/mach-ixp4xx/common.c
+++ b/arch/arm/mach-ixp4xx/common.c
@@ -252,8 +252,8 @@ void __init ixp4xx_init_irq(void)
 
         /* Default to all level triggered */
 	for(i = 0; i < NR_IRQS; i++) {
-		set_irq_chip(i, &ixp4xx_irq_chip);
-		set_irq_handler(i, handle_level_irq);
+		irq_set_chip_and_handler(i, &ixp4xx_irq_chip,
+					 handle_level_irq);
 		set_irq_flags(i, IRQF_VALID);
 	}
 }
diff --git a/arch/arm/mach-ixp4xx/coyote-pci.c b/arch/arm/mach-ixp4xx/coyote-pci.c
index b978ea8bd6f0..37fda7d6e83d 100644
--- a/arch/arm/mach-ixp4xx/coyote-pci.c
+++ b/arch/arm/mach-ixp4xx/coyote-pci.c
@@ -32,8 +32,8 @@
 
 void __init coyote_pci_preinit(void)
 {
-	set_irq_type(IXP4XX_GPIO_IRQ(SLOT0_INTA), IRQ_TYPE_LEVEL_LOW);
-	set_irq_type(IXP4XX_GPIO_IRQ(SLOT1_INTA), IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(IXP4XX_GPIO_IRQ(SLOT0_INTA), IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(IXP4XX_GPIO_IRQ(SLOT1_INTA), IRQ_TYPE_LEVEL_LOW);
 	ixp4xx_pci_preinit();
 }
 
diff --git a/arch/arm/mach-ixp4xx/dsmg600-pci.c b/arch/arm/mach-ixp4xx/dsmg600-pci.c
index fa70fed462ba..c7612010b3fc 100644
--- a/arch/arm/mach-ixp4xx/dsmg600-pci.c
+++ b/arch/arm/mach-ixp4xx/dsmg600-pci.c
@@ -35,12 +35,12 @@
 
 void __init dsmg600_pci_preinit(void)
 {
-	set_irq_type(IXP4XX_GPIO_IRQ(INTA), IRQ_TYPE_LEVEL_LOW);
-	set_irq_type(IXP4XX_GPIO_IRQ(INTB), IRQ_TYPE_LEVEL_LOW);
-	set_irq_type(IXP4XX_GPIO_IRQ(INTC), IRQ_TYPE_LEVEL_LOW);
-	set_irq_type(IXP4XX_GPIO_IRQ(INTD), IRQ_TYPE_LEVEL_LOW);
-	set_irq_type(IXP4XX_GPIO_IRQ(INTE), IRQ_TYPE_LEVEL_LOW);
-	set_irq_type(IXP4XX_GPIO_IRQ(INTF), IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(IXP4XX_GPIO_IRQ(INTA), IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(IXP4XX_GPIO_IRQ(INTB), IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(IXP4XX_GPIO_IRQ(INTC), IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(IXP4XX_GPIO_IRQ(INTD), IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(IXP4XX_GPIO_IRQ(INTE), IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(IXP4XX_GPIO_IRQ(INTF), IRQ_TYPE_LEVEL_LOW);
 	ixp4xx_pci_preinit();
 }
 
diff --git a/arch/arm/mach-ixp4xx/fsg-pci.c b/arch/arm/mach-ixp4xx/fsg-pci.c
index 5a810c930624..44ccde9d4879 100644
--- a/arch/arm/mach-ixp4xx/fsg-pci.c
+++ b/arch/arm/mach-ixp4xx/fsg-pci.c
@@ -32,9 +32,9 @@
 
 void __init fsg_pci_preinit(void)
 {
-	set_irq_type(IXP4XX_GPIO_IRQ(INTA), IRQ_TYPE_LEVEL_LOW);
-	set_irq_type(IXP4XX_GPIO_IRQ(INTB), IRQ_TYPE_LEVEL_LOW);
-	set_irq_type(IXP4XX_GPIO_IRQ(INTC), IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(IXP4XX_GPIO_IRQ(INTA), IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(IXP4XX_GPIO_IRQ(INTB), IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(IXP4XX_GPIO_IRQ(INTC), IRQ_TYPE_LEVEL_LOW);
 	ixp4xx_pci_preinit();
 }
 
diff --git a/arch/arm/mach-ixp4xx/gateway7001-pci.c b/arch/arm/mach-ixp4xx/gateway7001-pci.c
index 7e93a0975c4d..fc1124168874 100644
--- a/arch/arm/mach-ixp4xx/gateway7001-pci.c
+++ b/arch/arm/mach-ixp4xx/gateway7001-pci.c
@@ -29,8 +29,8 @@
 
 void __init gateway7001_pci_preinit(void)
 {
-	set_irq_type(IRQ_IXP4XX_GPIO10, IRQ_TYPE_LEVEL_LOW);
-	set_irq_type(IRQ_IXP4XX_GPIO11, IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(IRQ_IXP4XX_GPIO10, IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(IRQ_IXP4XX_GPIO11, IRQ_TYPE_LEVEL_LOW);
 
 	ixp4xx_pci_preinit();
 }
diff --git a/arch/arm/mach-ixp4xx/goramo_mlr.c b/arch/arm/mach-ixp4xx/goramo_mlr.c
index d0e4861ac03d..3e8c0e33b59c 100644
--- a/arch/arm/mach-ixp4xx/goramo_mlr.c
+++ b/arch/arm/mach-ixp4xx/goramo_mlr.c
@@ -420,8 +420,8 @@ static void __init gmlr_init(void)
 	gpio_line_config(GPIO_HSS1_RTS_N, IXP4XX_GPIO_OUT);
 	gpio_line_config(GPIO_HSS0_DCD_N, IXP4XX_GPIO_IN);
 	gpio_line_config(GPIO_HSS1_DCD_N, IXP4XX_GPIO_IN);
-	set_irq_type(IXP4XX_GPIO_IRQ(GPIO_HSS0_DCD_N), IRQ_TYPE_EDGE_BOTH);
-	set_irq_type(IXP4XX_GPIO_IRQ(GPIO_HSS1_DCD_N), IRQ_TYPE_EDGE_BOTH);
+	irq_set_irq_type(IXP4XX_GPIO_IRQ(GPIO_HSS0_DCD_N), IRQ_TYPE_EDGE_BOTH);
+	irq_set_irq_type(IXP4XX_GPIO_IRQ(GPIO_HSS1_DCD_N), IRQ_TYPE_EDGE_BOTH);
 
 	set_control(CONTROL_HSS0_DTR_N, 1);
 	set_control(CONTROL_HSS1_DTR_N, 1);
@@ -441,10 +441,10 @@ static void __init gmlr_init(void)
 #ifdef CONFIG_PCI
 static void __init gmlr_pci_preinit(void)
 {
-	set_irq_type(IXP4XX_GPIO_IRQ(GPIO_IRQ_ETHA), IRQ_TYPE_LEVEL_LOW);
-	set_irq_type(IXP4XX_GPIO_IRQ(GPIO_IRQ_ETHB), IRQ_TYPE_LEVEL_LOW);
-	set_irq_type(IXP4XX_GPIO_IRQ(GPIO_IRQ_NEC), IRQ_TYPE_LEVEL_LOW);
-	set_irq_type(IXP4XX_GPIO_IRQ(GPIO_IRQ_MPCI), IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(IXP4XX_GPIO_IRQ(GPIO_IRQ_ETHA), IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(IXP4XX_GPIO_IRQ(GPIO_IRQ_ETHB), IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(IXP4XX_GPIO_IRQ(GPIO_IRQ_NEC), IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(IXP4XX_GPIO_IRQ(GPIO_IRQ_MPCI), IRQ_TYPE_LEVEL_LOW);
 	ixp4xx_pci_preinit();
 }
 
diff --git a/arch/arm/mach-ixp4xx/gtwx5715-pci.c b/arch/arm/mach-ixp4xx/gtwx5715-pci.c
index 25d2c333c204..38cc0725dbd8 100644
--- a/arch/arm/mach-ixp4xx/gtwx5715-pci.c
+++ b/arch/arm/mach-ixp4xx/gtwx5715-pci.c
@@ -43,8 +43,8 @@
  */
 void __init gtwx5715_pci_preinit(void)
 {
-	set_irq_type(IXP4XX_GPIO_IRQ(INTA), IRQ_TYPE_LEVEL_LOW);
-	set_irq_type(IXP4XX_GPIO_IRQ(INTB), IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(IXP4XX_GPIO_IRQ(INTA), IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(IXP4XX_GPIO_IRQ(INTB), IRQ_TYPE_LEVEL_LOW);
 	ixp4xx_pci_preinit();
 }
 
diff --git a/arch/arm/mach-ixp4xx/ixdp425-pci.c b/arch/arm/mach-ixp4xx/ixdp425-pci.c
index 1ba165a6edac..58f400417eaf 100644
--- a/arch/arm/mach-ixp4xx/ixdp425-pci.c
+++ b/arch/arm/mach-ixp4xx/ixdp425-pci.c
@@ -36,10 +36,10 @@
 
 void __init ixdp425_pci_preinit(void)
 {
-	set_irq_type(IXP4XX_GPIO_IRQ(INTA), IRQ_TYPE_LEVEL_LOW);
-	set_irq_type(IXP4XX_GPIO_IRQ(INTB), IRQ_TYPE_LEVEL_LOW);
-	set_irq_type(IXP4XX_GPIO_IRQ(INTC), IRQ_TYPE_LEVEL_LOW);
-	set_irq_type(IXP4XX_GPIO_IRQ(INTD), IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(IXP4XX_GPIO_IRQ(INTA), IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(IXP4XX_GPIO_IRQ(INTB), IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(IXP4XX_GPIO_IRQ(INTC), IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(IXP4XX_GPIO_IRQ(INTD), IRQ_TYPE_LEVEL_LOW);
 	ixp4xx_pci_preinit();
 }
 
diff --git a/arch/arm/mach-ixp4xx/ixdpg425-pci.c b/arch/arm/mach-ixp4xx/ixdpg425-pci.c
index 4ed7ac614920..e64f6d041488 100644
--- a/arch/arm/mach-ixp4xx/ixdpg425-pci.c
+++ b/arch/arm/mach-ixp4xx/ixdpg425-pci.c
@@ -25,8 +25,8 @@
 
 void __init ixdpg425_pci_preinit(void)
 {
-	set_irq_type(IRQ_IXP4XX_GPIO6, IRQ_TYPE_LEVEL_LOW);
-	set_irq_type(IRQ_IXP4XX_GPIO7, IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(IRQ_IXP4XX_GPIO6, IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(IRQ_IXP4XX_GPIO7, IRQ_TYPE_LEVEL_LOW);
 
 	ixp4xx_pci_preinit();
 }
diff --git a/arch/arm/mach-ixp4xx/nas100d-pci.c b/arch/arm/mach-ixp4xx/nas100d-pci.c
index d0cea34cf61e..428d1202b799 100644
--- a/arch/arm/mach-ixp4xx/nas100d-pci.c
+++ b/arch/arm/mach-ixp4xx/nas100d-pci.c
@@ -33,11 +33,11 @@
 
 void __init nas100d_pci_preinit(void)
 {
-	set_irq_type(IXP4XX_GPIO_IRQ(INTA), IRQ_TYPE_LEVEL_LOW);
-	set_irq_type(IXP4XX_GPIO_IRQ(INTB), IRQ_TYPE_LEVEL_LOW);
-	set_irq_type(IXP4XX_GPIO_IRQ(INTC), IRQ_TYPE_LEVEL_LOW);
-	set_irq_type(IXP4XX_GPIO_IRQ(INTD), IRQ_TYPE_LEVEL_LOW);
-	set_irq_type(IXP4XX_GPIO_IRQ(INTE), IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(IXP4XX_GPIO_IRQ(INTA), IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(IXP4XX_GPIO_IRQ(INTB), IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(IXP4XX_GPIO_IRQ(INTC), IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(IXP4XX_GPIO_IRQ(INTD), IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(IXP4XX_GPIO_IRQ(INTE), IRQ_TYPE_LEVEL_LOW);
 	ixp4xx_pci_preinit();
 }
 
diff --git a/arch/arm/mach-ixp4xx/nslu2-pci.c b/arch/arm/mach-ixp4xx/nslu2-pci.c
index 1eb5a90470bc..2e85f76b950d 100644
--- a/arch/arm/mach-ixp4xx/nslu2-pci.c
+++ b/arch/arm/mach-ixp4xx/nslu2-pci.c
@@ -32,9 +32,9 @@
 
 void __init nslu2_pci_preinit(void)
 {
-	set_irq_type(IXP4XX_GPIO_IRQ(INTA), IRQ_TYPE_LEVEL_LOW);
-	set_irq_type(IXP4XX_GPIO_IRQ(INTB), IRQ_TYPE_LEVEL_LOW);
-	set_irq_type(IXP4XX_GPIO_IRQ(INTC), IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(IXP4XX_GPIO_IRQ(INTA), IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(IXP4XX_GPIO_IRQ(INTB), IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(IXP4XX_GPIO_IRQ(INTC), IRQ_TYPE_LEVEL_LOW);
 	ixp4xx_pci_preinit();
 }
 
diff --git a/arch/arm/mach-ixp4xx/vulcan-pci.c b/arch/arm/mach-ixp4xx/vulcan-pci.c
index f3111c6840ef..03bdec5140a7 100644
--- a/arch/arm/mach-ixp4xx/vulcan-pci.c
+++ b/arch/arm/mach-ixp4xx/vulcan-pci.c
@@ -38,8 +38,8 @@ void __init vulcan_pci_preinit(void)
 	pr_info("Vulcan PCI: limiting CardBus memory size to %dMB\n",
 		(int)(pci_cardbus_mem_size >> 20));
 #endif
-	set_irq_type(IXP4XX_GPIO_IRQ(INTA), IRQ_TYPE_LEVEL_LOW);
-	set_irq_type(IXP4XX_GPIO_IRQ(INTB), IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(IXP4XX_GPIO_IRQ(INTA), IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(IXP4XX_GPIO_IRQ(INTB), IRQ_TYPE_LEVEL_LOW);
 	ixp4xx_pci_preinit();
 }
 
diff --git a/arch/arm/mach-ixp4xx/wg302v2-pci.c b/arch/arm/mach-ixp4xx/wg302v2-pci.c
index 9b59ed03b151..17f3cf59a31b 100644
--- a/arch/arm/mach-ixp4xx/wg302v2-pci.c
+++ b/arch/arm/mach-ixp4xx/wg302v2-pci.c
@@ -29,8 +29,8 @@
 
 void __init wg302v2_pci_preinit(void)
 {
-	set_irq_type(IRQ_IXP4XX_GPIO8, IRQ_TYPE_LEVEL_LOW);
-	set_irq_type(IRQ_IXP4XX_GPIO9, IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(IRQ_IXP4XX_GPIO8, IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(IRQ_IXP4XX_GPIO9, IRQ_TYPE_LEVEL_LOW);
 
 	ixp4xx_pci_preinit();
 }
diff --git a/arch/arm/mach-kirkwood/irq.c b/arch/arm/mach-kirkwood/irq.c
index cbdb5863d13b..05d193a25b25 100644
--- a/arch/arm/mach-kirkwood/irq.c
+++ b/arch/arm/mach-kirkwood/irq.c
@@ -35,14 +35,15 @@ void __init kirkwood_init_irq(void)
 	 */
 	orion_gpio_init(0, 32, GPIO_LOW_VIRT_BASE, 0,
 			IRQ_KIRKWOOD_GPIO_START);
-	set_irq_chained_handler(IRQ_KIRKWOOD_GPIO_LOW_0_7, gpio_irq_handler);
-	set_irq_chained_handler(IRQ_KIRKWOOD_GPIO_LOW_8_15, gpio_irq_handler);
-	set_irq_chained_handler(IRQ_KIRKWOOD_GPIO_LOW_16_23, gpio_irq_handler);
-	set_irq_chained_handler(IRQ_KIRKWOOD_GPIO_LOW_24_31, gpio_irq_handler);
+	irq_set_chained_handler(IRQ_KIRKWOOD_GPIO_LOW_0_7, gpio_irq_handler);
+	irq_set_chained_handler(IRQ_KIRKWOOD_GPIO_LOW_8_15, gpio_irq_handler);
+	irq_set_chained_handler(IRQ_KIRKWOOD_GPIO_LOW_16_23, gpio_irq_handler);
+	irq_set_chained_handler(IRQ_KIRKWOOD_GPIO_LOW_24_31, gpio_irq_handler);
 
 	orion_gpio_init(32, 18, GPIO_HIGH_VIRT_BASE, 0,
 			IRQ_KIRKWOOD_GPIO_START + 32);
-	set_irq_chained_handler(IRQ_KIRKWOOD_GPIO_HIGH_0_7, gpio_irq_handler);
-	set_irq_chained_handler(IRQ_KIRKWOOD_GPIO_HIGH_8_15, gpio_irq_handler);
-	set_irq_chained_handler(IRQ_KIRKWOOD_GPIO_HIGH_16_23, gpio_irq_handler);
+	irq_set_chained_handler(IRQ_KIRKWOOD_GPIO_HIGH_0_7, gpio_irq_handler);
+	irq_set_chained_handler(IRQ_KIRKWOOD_GPIO_HIGH_8_15, gpio_irq_handler);
+	irq_set_chained_handler(IRQ_KIRKWOOD_GPIO_HIGH_16_23,
+				gpio_irq_handler);
 }
diff --git a/arch/arm/mach-kirkwood/sheevaplug-setup.c b/arch/arm/mach-kirkwood/sheevaplug-setup.c
index 0a95063f6d32..17de0bf53c08 100644
--- a/arch/arm/mach-kirkwood/sheevaplug-setup.c
+++ b/arch/arm/mach-kirkwood/sheevaplug-setup.c
@@ -58,6 +58,12 @@ static struct mvsdio_platform_data sheeva_esata_mvsdio_data = {
 
 static struct gpio_led sheevaplug_led_pins[] = {
 	{
+		.name			= "plug:red:misc",
+		.default_trigger	= "none",
+		.gpio			= 46,
+		.active_low		= 1,
+	},
+	{
 		.name			= "plug:green:health",
 		.default_trigger	= "default-on",
 		.gpio			= 49,
@@ -80,6 +86,7 @@ static struct platform_device sheevaplug_leds = {
 
 static unsigned int sheevaplug_mpp_config[] __initdata = {
 	MPP29_GPIO,	/* USB Power Enable */
+	MPP46_GPIO,	/* LED Red */
 	MPP49_GPIO,	/* LED */
 	0
 };
diff --git a/arch/arm/mach-kirkwood/tsx1x-common.c b/arch/arm/mach-kirkwood/tsx1x-common.c
index f781164e623f..24294b2bc469 100644
--- a/arch/arm/mach-kirkwood/tsx1x-common.c
+++ b/arch/arm/mach-kirkwood/tsx1x-common.c
@@ -15,7 +15,7 @@
 
 /****************************************************************************
  * 16 MiB NOR flash. The struct mtd_partition is not in the same order as the
- *     partitions on the device because we want to keep compatability with
+ *     partitions on the device because we want to keep compatibility with
  *     the QNAP firmware.
  * Layout as used by QNAP:
  *  0x00000000-0x00080000 : "U-Boot"
diff --git a/arch/arm/mach-ks8695/gpio.c b/arch/arm/mach-ks8695/gpio.c
index 55fbf7111a5b..31e456508a6f 100644
--- a/arch/arm/mach-ks8695/gpio.c
+++ b/arch/arm/mach-ks8695/gpio.c
@@ -80,7 +80,7 @@ int ks8695_gpio_interrupt(unsigned int pin, unsigned int type)
 	local_irq_restore(flags);
 
 	/* Set IRQ triggering type */
-	set_irq_type(gpio_irq[pin], type);
+	irq_set_irq_type(gpio_irq[pin], type);
 
 	/* enable interrupt mode */
 	ks8695_gpio_mode(pin, 0);
diff --git a/arch/arm/mach-ks8695/irq.c b/arch/arm/mach-ks8695/irq.c
index 7998ccaa6333..a78092dcd6fb 100644
--- a/arch/arm/mach-ks8695/irq.c
+++ b/arch/arm/mach-ks8695/irq.c
@@ -115,12 +115,12 @@ static int ks8695_irq_set_type(struct irq_data *d, unsigned int type)
 	}
 
 	if (level_triggered) {
-		set_irq_chip(d->irq, &ks8695_irq_level_chip);
-		set_irq_handler(d->irq, handle_level_irq);
+		irq_set_chip_and_handler(d->irq, &ks8695_irq_level_chip,
+					 handle_level_irq);
 	}
 	else {
-		set_irq_chip(d->irq, &ks8695_irq_edge_chip);
-		set_irq_handler(d->irq, handle_edge_irq);
+		irq_set_chip_and_handler(d->irq, &ks8695_irq_edge_chip,
+					 handle_edge_irq);
 	}
 
 	__raw_writel(ctrl, KS8695_GPIO_VA + KS8695_IOPC);
@@ -158,16 +158,18 @@ void __init ks8695_init_irq(void)
 			case KS8695_IRQ_UART_RX:
 			case KS8695_IRQ_COMM_TX:
 			case KS8695_IRQ_COMM_RX:
-				set_irq_chip(irq, &ks8695_irq_level_chip);
-				set_irq_handler(irq, handle_level_irq);
+				irq_set_chip_and_handler(irq,
+							 &ks8695_irq_level_chip,
+							 handle_level_irq);
 				break;
 
 			/* Edge-triggered interrupts */
 			default:
 				/* clear pending bit */
 				ks8695_irq_ack(irq_get_irq_data(irq));
-				set_irq_chip(irq, &ks8695_irq_edge_chip);
-				set_irq_handler(irq, handle_edge_irq);
+				irq_set_chip_and_handler(irq,
+							 &ks8695_irq_edge_chip,
+							 handle_edge_irq);
 		}
 
 		set_irq_flags(irq, IRQF_VALID);
diff --git a/arch/arm/mach-lpc32xx/irq.c b/arch/arm/mach-lpc32xx/irq.c
index 316ecbf6c586..4eae566dfdc7 100644
--- a/arch/arm/mach-lpc32xx/irq.c
+++ b/arch/arm/mach-lpc32xx/irq.c
@@ -290,7 +290,7 @@ static int lpc32xx_set_irq_type(struct irq_data *d, unsigned int type)
 	}
 
 	/* Ok to use the level handler for all types */
-	set_irq_handler(d->irq, handle_level_irq);
+	irq_set_handler(d->irq, handle_level_irq);
 
 	return 0;
 }
@@ -390,8 +390,8 @@ void __init lpc32xx_init_irq(void)
 
 	/* Configure supported IRQ's */
 	for (i = 0; i < NR_IRQS; i++) {
-		set_irq_chip(i, &lpc32xx_irq_chip);
-		set_irq_handler(i, handle_level_irq);
+		irq_set_chip_and_handler(i, &lpc32xx_irq_chip,
+					 handle_level_irq);
 		set_irq_flags(i, IRQF_VALID);
 	}
 
@@ -406,8 +406,8 @@ void __init lpc32xx_init_irq(void)
 	__raw_writel(0, LPC32XX_INTC_MASK(LPC32XX_SIC2_BASE));
 
 	/* MIC SUBIRQx interrupts will route handling to the chain handlers */
-	set_irq_chained_handler(IRQ_LPC32XX_SUB1IRQ, lpc32xx_sic1_handler);
-	set_irq_chained_handler(IRQ_LPC32XX_SUB2IRQ, lpc32xx_sic2_handler);
+	irq_set_chained_handler(IRQ_LPC32XX_SUB1IRQ, lpc32xx_sic1_handler);
+	irq_set_chained_handler(IRQ_LPC32XX_SUB2IRQ, lpc32xx_sic2_handler);
 
 	/* Initially disable all wake events */
 	__raw_writel(0, LPC32XX_CLKPWR_P01_ER);
diff --git a/arch/arm/mach-lpc32xx/pm.c b/arch/arm/mach-lpc32xx/pm.c
index e76d41bb7056..b9c80597b7bf 100644
--- a/arch/arm/mach-lpc32xx/pm.c
+++ b/arch/arm/mach-lpc32xx/pm.c
@@ -41,7 +41,7 @@
  * DRAM clocking and refresh are slightly different for systems with DDR
  * DRAM or regular SDRAM devices. If SDRAM is used in the system, the
  * SDRAM will still be accessible in direct-run mode. In DDR based systems,
- * a transistion to direct-run mode will stop all DDR accesses (no clocks).
+ * a transition to direct-run mode will stop all DDR accesses (no clocks).
  * Because of this, the code to switch power modes and the code to enter
  * and exit DRAM self-refresh modes must not be executed in DRAM. A small
  * section of IRAM is used instead for this.
diff --git a/arch/arm/mach-mmp/irq-mmp2.c b/arch/arm/mach-mmp/irq-mmp2.c
index fa037038e7b8..d21c5441a3d0 100644
--- a/arch/arm/mach-mmp/irq-mmp2.c
+++ b/arch/arm/mach-mmp/irq-mmp2.c
@@ -110,9 +110,9 @@ static void init_mux_irq(struct irq_chip *chip, int start, int num)
 		if (chip->irq_ack)
 			chip->irq_ack(d);
 
-		set_irq_chip(irq, chip);
+		irq_set_chip(irq, chip);
 		set_irq_flags(irq, IRQF_VALID);
-		set_irq_handler(irq, handle_level_irq);
+		irq_set_handler(irq, handle_level_irq);
 	}
 }
 
@@ -122,7 +122,7 @@ void __init mmp2_init_icu(void)
 
 	for (irq = 0; irq < IRQ_MMP2_MUX_BASE; irq++) {
 		icu_mask_irq(irq_get_irq_data(irq));
-		set_irq_chip(irq, &icu_irq_chip);
+		irq_set_chip(irq, &icu_irq_chip);
 		set_irq_flags(irq, IRQF_VALID);
 
 		switch (irq) {
@@ -133,7 +133,7 @@ void __init mmp2_init_icu(void)
 		case IRQ_MMP2_SSP_MUX:
 			break;
 		default:
-			set_irq_handler(irq, handle_level_irq);
+			irq_set_handler(irq, handle_level_irq);
 			break;
 		}
 	}
@@ -149,9 +149,9 @@ void __init mmp2_init_icu(void)
 	init_mux_irq(&misc_irq_chip, IRQ_MMP2_MISC_BASE, 15);
 	init_mux_irq(&ssp_irq_chip, IRQ_MMP2_SSP_BASE, 2);
 
-	set_irq_chained_handler(IRQ_MMP2_PMIC_MUX, pmic_irq_demux);
-	set_irq_chained_handler(IRQ_MMP2_RTC_MUX, rtc_irq_demux);
-	set_irq_chained_handler(IRQ_MMP2_TWSI_MUX, twsi_irq_demux);
-	set_irq_chained_handler(IRQ_MMP2_MISC_MUX, misc_irq_demux);
-	set_irq_chained_handler(IRQ_MMP2_SSP_MUX, ssp_irq_demux);
+	irq_set_chained_handler(IRQ_MMP2_PMIC_MUX, pmic_irq_demux);
+	irq_set_chained_handler(IRQ_MMP2_RTC_MUX, rtc_irq_demux);
+	irq_set_chained_handler(IRQ_MMP2_TWSI_MUX, twsi_irq_demux);
+	irq_set_chained_handler(IRQ_MMP2_MISC_MUX, misc_irq_demux);
+	irq_set_chained_handler(IRQ_MMP2_SSP_MUX, ssp_irq_demux);
 }
diff --git a/arch/arm/mach-mmp/irq-pxa168.c b/arch/arm/mach-mmp/irq-pxa168.c
index f86b450cb93c..89706a0d08f1 100644
--- a/arch/arm/mach-mmp/irq-pxa168.c
+++ b/arch/arm/mach-mmp/irq-pxa168.c
@@ -48,8 +48,7 @@ void __init icu_init_irq(void)
 
 	for (irq = 0; irq < 64; irq++) {
 		icu_mask_irq(irq_get_irq_data(irq));
-		set_irq_chip(irq, &icu_irq_chip);
-		set_irq_handler(irq, handle_level_irq);
+		irq_set_chip_and_handler(irq, &icu_irq_chip, handle_level_irq);
 		set_irq_flags(irq, IRQF_VALID);
 	}
 }
diff --git a/arch/arm/mach-mmp/time.c b/arch/arm/mach-mmp/time.c
index aeb9ae23e6ce..99833b9485cf 100644
--- a/arch/arm/mach-mmp/time.c
+++ b/arch/arm/mach-mmp/time.c
@@ -9,7 +9,7 @@
  *   2008-04-11: Jason Chagas <Jason.chagas@marvell.com>
  *   2008-10-08: Bin Yang <bin.yang@marvell.com>
  *
- * The timers module actually includes three timers, each timer with upto
+ * The timers module actually includes three timers, each timer with up to
  * three match comparators. Timer #0 is used here in free-running mode as
  * the clock source, and match comparator #1 used as clock event device.
  *
diff --git a/arch/arm/mach-msm/acpuclock-arm11.c b/arch/arm/mach-msm/acpuclock-arm11.c
index 7ffbd987eb5d..805d4ee53f7e 100644
--- a/arch/arm/mach-msm/acpuclock-arm11.c
+++ b/arch/arm/mach-msm/acpuclock-arm11.c
@@ -343,7 +343,7 @@ int acpuclk_set_rate(unsigned long rate, int for_power_collapse)
 		}
 	}
 
-	/* Set wait states for CPU inbetween frequency changes */
+	/* Set wait states for CPU between frequency changes */
 	reg_clkctl = readl(A11S_CLK_CNTL_ADDR);
 	reg_clkctl |= (100 << 16); /* set WT_ST_CNT */
 	writel(reg_clkctl, A11S_CLK_CNTL_ADDR);
diff --git a/arch/arm/mach-msm/board-msm8960.c b/arch/arm/mach-msm/board-msm8960.c
index 1993721d472e..35c7ceeb3f29 100644
--- a/arch/arm/mach-msm/board-msm8960.c
+++ b/arch/arm/mach-msm/board-msm8960.c
@@ -53,7 +53,7 @@ static void __init msm8960_init_irq(void)
 	 */
 	for (i = GIC_PPI_START; i < GIC_SPI_START; i++) {
 		if (i != AVS_SVICINT && i != AVS_SVICINTSWDONE)
-			set_irq_handler(i, handle_percpu_irq);
+			irq_set_handler(i, handle_percpu_irq);
 	}
 }
 
diff --git a/arch/arm/mach-msm/board-msm8x60.c b/arch/arm/mach-msm/board-msm8x60.c
index b3c55f138fce..1163b6fd05d2 100644
--- a/arch/arm/mach-msm/board-msm8x60.c
+++ b/arch/arm/mach-msm/board-msm8x60.c
@@ -56,7 +56,7 @@ static void __init msm8x60_init_irq(void)
 	 */
 	for (i = GIC_PPI_START; i < GIC_SPI_START; i++) {
 		if (i != AVS_SVICINT && i != AVS_SVICINTSWDONE)
-			set_irq_handler(i, handle_percpu_irq);
+			irq_set_handler(i, handle_percpu_irq);
 	}
 }
 
diff --git a/arch/arm/mach-msm/board-trout-gpio.c b/arch/arm/mach-msm/board-trout-gpio.c
index 31117a4499c4..87e1d01edecc 100644
--- a/arch/arm/mach-msm/board-trout-gpio.c
+++ b/arch/arm/mach-msm/board-trout-gpio.c
@@ -214,17 +214,17 @@ int __init trout_init_gpio(void)
 {
 	int i;
 	for(i = TROUT_INT_START; i <= TROUT_INT_END; i++) {
-		set_irq_chip(i, &trout_gpio_irq_chip);
-		set_irq_handler(i, handle_edge_irq);
+		irq_set_chip_and_handler(i, &trout_gpio_irq_chip,
+					 handle_edge_irq);
 		set_irq_flags(i, IRQF_VALID);
 	}
 
 	for (i = 0; i < ARRAY_SIZE(msm_gpio_banks); i++)
 		gpiochip_add(&msm_gpio_banks[i].chip);
 
-	set_irq_type(MSM_GPIO_TO_INT(17), IRQF_TRIGGER_HIGH);
-	set_irq_chained_handler(MSM_GPIO_TO_INT(17), trout_gpio_irq_handler);
-	set_irq_wake(MSM_GPIO_TO_INT(17), 1);
+	irq_set_irq_type(MSM_GPIO_TO_INT(17), IRQF_TRIGGER_HIGH);
+	irq_set_chained_handler(MSM_GPIO_TO_INT(17), trout_gpio_irq_handler);
+	irq_set_irq_wake(MSM_GPIO_TO_INT(17), 1);
 
 	return 0;
 }
diff --git a/arch/arm/mach-msm/board-trout-mmc.c b/arch/arm/mach-msm/board-trout-mmc.c
index 44be8464657b..f7a9724788b0 100644
--- a/arch/arm/mach-msm/board-trout-mmc.c
+++ b/arch/arm/mach-msm/board-trout-mmc.c
@@ -174,7 +174,7 @@ int __init trout_init_mmc(unsigned int sys_rev)
 	if (IS_ERR(vreg_sdslot))
 		return PTR_ERR(vreg_sdslot);
 
-	set_irq_wake(TROUT_GPIO_TO_INT(TROUT_GPIO_SDMC_CD_N), 1);
+	irq_set_irq_wake(TROUT_GPIO_TO_INT(TROUT_GPIO_SDMC_CD_N), 1);
 
 	if (!opt_disable_sdcard)
 		msm_add_sdcc(2, &trout_sdslot_data,
diff --git a/arch/arm/mach-msm/gpio-v2.c b/arch/arm/mach-msm/gpio-v2.c
index 0de19ec74e34..56a964e52ad3 100644
--- a/arch/arm/mach-msm/gpio-v2.c
+++ b/arch/arm/mach-msm/gpio-v2.c
@@ -230,18 +230,18 @@ static void msm_gpio_update_dual_edge_pos(unsigned gpio)
 	       val, val2);
 }
 
-static void msm_gpio_irq_ack(unsigned int irq)
+static void msm_gpio_irq_ack(struct irq_data *d)
 {
-	int gpio = msm_irq_to_gpio(&msm_gpio.gpio_chip, irq);
+	int gpio = msm_irq_to_gpio(&msm_gpio.gpio_chip, d->irq);
 
 	writel(BIT(INTR_STATUS), GPIO_INTR_STATUS(gpio));
 	if (test_bit(gpio, msm_gpio.dual_edge_irqs))
 		msm_gpio_update_dual_edge_pos(gpio);
 }
 
-static void msm_gpio_irq_mask(unsigned int irq)
+static void msm_gpio_irq_mask(struct irq_data *d)
 {
-	int gpio = msm_irq_to_gpio(&msm_gpio.gpio_chip, irq);
+	int gpio = msm_irq_to_gpio(&msm_gpio.gpio_chip, d->irq);
 	unsigned long irq_flags;
 
 	spin_lock_irqsave(&tlmm_lock, irq_flags);
@@ -251,9 +251,9 @@ static void msm_gpio_irq_mask(unsigned int irq)
 	spin_unlock_irqrestore(&tlmm_lock, irq_flags);
 }
 
-static void msm_gpio_irq_unmask(unsigned int irq)
+static void msm_gpio_irq_unmask(struct irq_data *d)
 {
-	int gpio = msm_irq_to_gpio(&msm_gpio.gpio_chip, irq);
+	int gpio = msm_irq_to_gpio(&msm_gpio.gpio_chip, d->irq);
 	unsigned long irq_flags;
 
 	spin_lock_irqsave(&tlmm_lock, irq_flags);
@@ -263,9 +263,9 @@ static void msm_gpio_irq_unmask(unsigned int irq)
 	spin_unlock_irqrestore(&tlmm_lock, irq_flags);
 }
 
-static int msm_gpio_irq_set_type(unsigned int irq, unsigned int flow_type)
+static int msm_gpio_irq_set_type(struct irq_data *d, unsigned int flow_type)
 {
-	int gpio = msm_irq_to_gpio(&msm_gpio.gpio_chip, irq);
+	int gpio = msm_irq_to_gpio(&msm_gpio.gpio_chip, d->irq);
 	unsigned long irq_flags;
 	uint32_t bits;
 
@@ -275,14 +275,14 @@ static int msm_gpio_irq_set_type(unsigned int irq, unsigned int flow_type)
 
 	if (flow_type & IRQ_TYPE_EDGE_BOTH) {
 		bits |= BIT(INTR_DECT_CTL);
-		irq_desc[irq].handle_irq = handle_edge_irq;
+		__irq_set_handler_locked(d->irq, handle_edge_irq);
 		if ((flow_type & IRQ_TYPE_EDGE_BOTH) == IRQ_TYPE_EDGE_BOTH)
 			__set_bit(gpio, msm_gpio.dual_edge_irqs);
 		else
 			__clear_bit(gpio, msm_gpio.dual_edge_irqs);
 	} else {
 		bits &= ~BIT(INTR_DECT_CTL);
-		irq_desc[irq].handle_irq = handle_level_irq;
+		__irq_set_handler_locked(d->irq, handle_level_irq);
 		__clear_bit(gpio, msm_gpio.dual_edge_irqs);
 	}
 
@@ -309,6 +309,7 @@ static int msm_gpio_irq_set_type(unsigned int irq, unsigned int flow_type)
  */
 static void msm_summary_irq_handler(unsigned int irq, struct irq_desc *desc)
 {
+	struct irq_data *data = irq_desc_get_irq_data(desc);
 	unsigned long i;
 
 	for (i = find_first_bit(msm_gpio.enabled_irqs, NR_GPIO_IRQS);
@@ -318,21 +319,21 @@ static void msm_summary_irq_handler(unsigned int irq, struct irq_desc *desc)
 			generic_handle_irq(msm_gpio_to_irq(&msm_gpio.gpio_chip,
 							   i));
 	}
-	desc->chip->ack(irq);
+	data->chip->irq_ack(data);
 }
 
-static int msm_gpio_irq_set_wake(unsigned int irq, unsigned int on)
+static int msm_gpio_irq_set_wake(struct irq_data *d, unsigned int on)
 {
-	int gpio = msm_irq_to_gpio(&msm_gpio.gpio_chip, irq);
+	int gpio = msm_irq_to_gpio(&msm_gpio.gpio_chip, d->irq);
 
 	if (on) {
 		if (bitmap_empty(msm_gpio.wake_irqs, NR_GPIO_IRQS))
-			set_irq_wake(TLMM_SCSS_SUMMARY_IRQ, 1);
+			irq_set_irq_wake(TLMM_SCSS_SUMMARY_IRQ, 1);
 		set_bit(gpio, msm_gpio.wake_irqs);
 	} else {
 		clear_bit(gpio, msm_gpio.wake_irqs);
 		if (bitmap_empty(msm_gpio.wake_irqs, NR_GPIO_IRQS))
-			set_irq_wake(TLMM_SCSS_SUMMARY_IRQ, 0);
+			irq_set_irq_wake(TLMM_SCSS_SUMMARY_IRQ, 0);
 	}
 
 	return 0;
@@ -340,11 +341,11 @@ static int msm_gpio_irq_set_wake(unsigned int irq, unsigned int on)
 
 static struct irq_chip msm_gpio_irq_chip = {
 	.name		= "msmgpio",
-	.mask		= msm_gpio_irq_mask,
-	.unmask		= msm_gpio_irq_unmask,
-	.ack		= msm_gpio_irq_ack,
-	.set_type	= msm_gpio_irq_set_type,
-	.set_wake	= msm_gpio_irq_set_wake,
+	.irq_mask	= msm_gpio_irq_mask,
+	.irq_unmask	= msm_gpio_irq_unmask,
+	.irq_ack	= msm_gpio_irq_ack,
+	.irq_set_type	= msm_gpio_irq_set_type,
+	.irq_set_wake	= msm_gpio_irq_set_wake,
 };
 
 static int __devinit msm_gpio_probe(struct platform_device *dev)
@@ -361,12 +362,12 @@ static int __devinit msm_gpio_probe(struct platform_device *dev)
 
 	for (i = 0; i < msm_gpio.gpio_chip.ngpio; ++i) {
 		irq = msm_gpio_to_irq(&msm_gpio.gpio_chip, i);
-		set_irq_chip(irq, &msm_gpio_irq_chip);
-		set_irq_handler(irq, handle_level_irq);
+		irq_set_chip_and_handler(irq, &msm_gpio_irq_chip,
+					 handle_level_irq);
 		set_irq_flags(irq, IRQF_VALID);
 	}
 
-	set_irq_chained_handler(TLMM_SCSS_SUMMARY_IRQ,
+	irq_set_chained_handler(TLMM_SCSS_SUMMARY_IRQ,
 				msm_summary_irq_handler);
 	return 0;
 }
@@ -378,7 +379,7 @@ static int __devexit msm_gpio_remove(struct platform_device *dev)
 	if (ret < 0)
 		return ret;
 
-	set_irq_handler(TLMM_SCSS_SUMMARY_IRQ, NULL);
+	irq_set_handler(TLMM_SCSS_SUMMARY_IRQ, NULL);
 
 	return 0;
 }
diff --git a/arch/arm/mach-msm/gpio.c b/arch/arm/mach-msm/gpio.c
index 176af9dcb8ee..5ea273b00da8 100644
--- a/arch/arm/mach-msm/gpio.c
+++ b/arch/arm/mach-msm/gpio.c
@@ -293,10 +293,10 @@ static int msm_gpio_irq_set_type(struct irq_data *d, unsigned int flow_type)
 	val = readl(msm_chip->regs.int_edge);
 	if (flow_type & IRQ_TYPE_EDGE_BOTH) {
 		writel(val | mask, msm_chip->regs.int_edge);
-		irq_desc[d->irq].handle_irq = handle_edge_irq;
+		__irq_set_handler_locked(d->irq, handle_edge_irq);
 	} else {
 		writel(val & ~mask, msm_chip->regs.int_edge);
-		irq_desc[d->irq].handle_irq = handle_level_irq;
+		__irq_set_handler_locked(d->irq, handle_level_irq);
 	}
 	if ((flow_type & IRQ_TYPE_EDGE_BOTH) == IRQ_TYPE_EDGE_BOTH) {
 		msm_chip->both_edge_detect |= mask;
@@ -354,9 +354,9 @@ static int __init msm_init_gpio(void)
 			msm_gpio_chips[j].chip.base +
 			msm_gpio_chips[j].chip.ngpio)
 			j++;
-		set_irq_chip_data(i, &msm_gpio_chips[j]);
-		set_irq_chip(i, &msm_gpio_irq_chip);
-		set_irq_handler(i, handle_edge_irq);
+		irq_set_chip_data(i, &msm_gpio_chips[j]);
+		irq_set_chip_and_handler(i, &msm_gpio_irq_chip,
+					 handle_edge_irq);
 		set_irq_flags(i, IRQF_VALID);
 	}
 
@@ -366,10 +366,10 @@ static int __init msm_init_gpio(void)
 		gpiochip_add(&msm_gpio_chips[i].chip);
 	}
 
-	set_irq_chained_handler(INT_GPIO_GROUP1, msm_gpio_irq_handler);
-	set_irq_chained_handler(INT_GPIO_GROUP2, msm_gpio_irq_handler);
-	set_irq_wake(INT_GPIO_GROUP1, 1);
-	set_irq_wake(INT_GPIO_GROUP2, 2);
+	irq_set_chained_handler(INT_GPIO_GROUP1, msm_gpio_irq_handler);
+	irq_set_chained_handler(INT_GPIO_GROUP2, msm_gpio_irq_handler);
+	irq_set_irq_wake(INT_GPIO_GROUP1, 1);
+	irq_set_irq_wake(INT_GPIO_GROUP2, 2);
 	return 0;
 }
 
diff --git a/arch/arm/mach-msm/irq-vic.c b/arch/arm/mach-msm/irq-vic.c
index 68c28bbdc969..1b54f807c2d0 100644
--- a/arch/arm/mach-msm/irq-vic.c
+++ b/arch/arm/mach-msm/irq-vic.c
@@ -313,11 +313,11 @@ static int msm_irq_set_type(struct irq_data *d, unsigned int flow_type)
 	type = msm_irq_shadow_reg[index].int_type;
 	if (flow_type & (IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING)) {
 		type |= b;
-		irq_desc[d->irq].handle_irq = handle_edge_irq;
+		__irq_set_handler_locked(d->irq, handle_edge_irq);
 	}
 	if (flow_type & (IRQF_TRIGGER_HIGH | IRQF_TRIGGER_LOW)) {
 		type &= ~b;
-		irq_desc[d->irq].handle_irq = handle_level_irq;
+		__irq_set_handler_locked(d->irq, handle_level_irq);
 	}
 	writel(type, treg);
 	msm_irq_shadow_reg[index].int_type = type;
@@ -357,8 +357,7 @@ void __init msm_init_irq(void)
 	writel(3, VIC_INT_MASTEREN);
 
 	for (n = 0; n < NR_MSM_IRQS; n++) {
-		set_irq_chip(n, &msm_irq_chip);
-		set_irq_handler(n, handle_level_irq);
+		irq_set_chip_and_handler(n, &msm_irq_chip, handle_level_irq);
 		set_irq_flags(n, IRQF_VALID);
 	}
 }
diff --git a/arch/arm/mach-msm/irq.c b/arch/arm/mach-msm/irq.c
index 0b27d899f40e..ea514be390c6 100644
--- a/arch/arm/mach-msm/irq.c
+++ b/arch/arm/mach-msm/irq.c
@@ -100,11 +100,11 @@ static int msm_irq_set_type(struct irq_data *d, unsigned int flow_type)
 
 	if (flow_type & (IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING)) {
 		writel(readl(treg) | b, treg);
-		irq_desc[d->irq].handle_irq = handle_edge_irq;
+		__irq_set_handler_locked(d->irq, handle_edge_irq);
 	}
 	if (flow_type & (IRQF_TRIGGER_HIGH | IRQF_TRIGGER_LOW)) {
 		writel(readl(treg) & (~b), treg);
-		irq_desc[d->irq].handle_irq = handle_level_irq;
+		__irq_set_handler_locked(d->irq, handle_level_irq);
 	}
 	return 0;
 }
@@ -145,8 +145,7 @@ void __init msm_init_irq(void)
 	writel(1, VIC_INT_MASTEREN);
 
 	for (n = 0; n < NR_MSM_IRQS; n++) {
-		set_irq_chip(n, &msm_irq_chip);
-		set_irq_handler(n, handle_level_irq);
+		irq_set_chip_and_handler(n, &msm_irq_chip, handle_level_irq);
 		set_irq_flags(n, IRQF_VALID);
 	}
 }
diff --git a/arch/arm/mach-msm/scm.c b/arch/arm/mach-msm/scm.c
index cfa808dd4897..232f97a04504 100644
--- a/arch/arm/mach-msm/scm.c
+++ b/arch/arm/mach-msm/scm.c
@@ -46,7 +46,7 @@ static DEFINE_MUTEX(scm_lock);
  * @id: command to be executed
  * @buf: buffer returned from scm_get_command_buffer()
  *
- * An SCM command is layed out in memory as follows:
+ * An SCM command is laid out in memory as follows:
  *
  *	------------------- <--- struct scm_command
  *	| command header  |
diff --git a/arch/arm/mach-msm/sirc.c b/arch/arm/mach-msm/sirc.c
index 11b54c7aeb09..689e78c95f38 100644
--- a/arch/arm/mach-msm/sirc.c
+++ b/arch/arm/mach-msm/sirc.c
@@ -105,10 +105,10 @@ static int sirc_irq_set_type(struct irq_data *d, unsigned int flow_type)
 	val = readl(sirc_regs.int_type);
 	if (flow_type & (IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING)) {
 		val |= mask;
-		irq_desc[d->irq].handle_irq = handle_edge_irq;
+		__irq_set_handler_locked(d->irq, handle_edge_irq);
 	} else {
 		val &= ~mask;
-		irq_desc[d->irq].handle_irq = handle_level_irq;
+		__irq_set_handler_locked(d->irq, handle_level_irq);
 	}
 
 	writel(val, sirc_regs.int_type);
@@ -158,15 +158,14 @@ void __init msm_init_sirc(void)
 	wake_enable = 0;
 
 	for (i = FIRST_SIRC_IRQ; i < LAST_SIRC_IRQ; i++) {
-		set_irq_chip(i, &sirc_irq_chip);
-		set_irq_handler(i, handle_edge_irq);
+		irq_set_chip_and_handler(i, &sirc_irq_chip, handle_edge_irq);
 		set_irq_flags(i, IRQF_VALID);
 	}
 
 	for (i = 0; i < ARRAY_SIZE(sirc_reg_table); i++) {
-		set_irq_chained_handler(sirc_reg_table[i].cascade_irq,
+		irq_set_chained_handler(sirc_reg_table[i].cascade_irq,
 					sirc_irq_handler);
-		set_irq_wake(sirc_reg_table[i].cascade_irq, 1);
+		irq_set_irq_wake(sirc_reg_table[i].cascade_irq, 1);
 	}
 	return;
 }
diff --git a/arch/arm/mach-mv78xx0/irq.c b/arch/arm/mach-mv78xx0/irq.c
index 08da497c39c2..3e24431bb5ea 100644
--- a/arch/arm/mach-mv78xx0/irq.c
+++ b/arch/arm/mach-mv78xx0/irq.c
@@ -38,8 +38,8 @@ void __init mv78xx0_init_irq(void)
 	orion_gpio_init(0, 32, GPIO_VIRT_BASE,
 			mv78xx0_core_index() ? 0x18 : 0,
 			IRQ_MV78XX0_GPIO_START);
-	set_irq_chained_handler(IRQ_MV78XX0_GPIO_0_7, gpio_irq_handler);
-	set_irq_chained_handler(IRQ_MV78XX0_GPIO_8_15, gpio_irq_handler);
-	set_irq_chained_handler(IRQ_MV78XX0_GPIO_16_23, gpio_irq_handler);
-	set_irq_chained_handler(IRQ_MV78XX0_GPIO_24_31, gpio_irq_handler);
+	irq_set_chained_handler(IRQ_MV78XX0_GPIO_0_7, gpio_irq_handler);
+	irq_set_chained_handler(IRQ_MV78XX0_GPIO_8_15, gpio_irq_handler);
+	irq_set_chained_handler(IRQ_MV78XX0_GPIO_16_23, gpio_irq_handler);
+	irq_set_chained_handler(IRQ_MV78XX0_GPIO_24_31, gpio_irq_handler);
 }
diff --git a/arch/arm/mach-mx3/eukrea_mbimxsd-baseboard.c b/arch/arm/mach-mx3/eukrea_mbimxsd-baseboard.c
index 80761474c0f8..2e288b38b4ad 100644
--- a/arch/arm/mach-mx3/eukrea_mbimxsd-baseboard.c
+++ b/arch/arm/mach-mx3/eukrea_mbimxsd-baseboard.c
@@ -43,6 +43,7 @@
 #include <mach/ipu.h>
 #include <mach/mx3fb.h>
 #include <mach/audmux.h>
+#include <mach/esdhc.h>
 
 #include "devices-imx35.h"
 #include "devices.h"
@@ -163,11 +164,14 @@ static iomux_v3_cfg_t eukrea_mbimxsd_pads[] = {
 	MX35_PAD_SD1_DATA1__ESDHC1_DAT1,
 	MX35_PAD_SD1_DATA2__ESDHC1_DAT2,
 	MX35_PAD_SD1_DATA3__ESDHC1_DAT3,
+	/* SD1 CD */
+	MX35_PAD_LD18__GPIO3_24,
 };
 
 #define GPIO_LED1	IMX_GPIO_NR(3, 29)
 #define GPIO_SWITCH1	IMX_GPIO_NR(3, 25)
-#define GPIO_LCDPWR	(4)
+#define GPIO_LCDPWR	IMX_GPIO_NR(1, 4)
+#define GPIO_SD1CD	IMX_GPIO_NR(3, 24)
 
 static void eukrea_mbimxsd_lcd_power_set(struct plat_lcd_data *pd,
 				   unsigned int power)
@@ -254,6 +258,11 @@ struct imx_ssi_platform_data eukrea_mbimxsd_ssi_pdata __initconst = {
 	.flags = IMX_SSI_SYN | IMX_SSI_NET | IMX_SSI_USE_I2S_SLAVE,
 };
 
+static struct esdhc_platform_data sd1_pdata = {
+	.cd_gpio = GPIO_SD1CD,
+	.wp_gpio = -EINVAL,
+};
+
 /*
  * system init for baseboard usage. Will be called by cpuimx35 init.
  *
@@ -289,7 +298,7 @@ void __init eukrea_mbimxsd35_baseboard_init(void)
 	imx35_add_imx_ssi(0, &eukrea_mbimxsd_ssi_pdata);
 
 	imx35_add_flexcan1(NULL);
-	imx35_add_sdhci_esdhc_imx(0, NULL);
+	imx35_add_sdhci_esdhc_imx(0, &sd1_pdata);
 
 	gpio_request(GPIO_LED1, "LED1");
 	gpio_direction_output(GPIO_LED1, 1);
@@ -301,7 +310,6 @@ void __init eukrea_mbimxsd35_baseboard_init(void)
 
 	gpio_request(GPIO_LCDPWR, "LCDPWR");
 	gpio_direction_output(GPIO_LCDPWR, 1);
-	gpio_free(GPIO_LCDPWR);
 
 	i2c_register_board_info(0, eukrea_mbimxsd_i2c_devices,
 				ARRAY_SIZE(eukrea_mbimxsd_i2c_devices));
diff --git a/arch/arm/mach-mx3/mach-mx31ads.c b/arch/arm/mach-mx3/mach-mx31ads.c
index 4e4b780c481d..3d095d69bc68 100644
--- a/arch/arm/mach-mx3/mach-mx31ads.c
+++ b/arch/arm/mach-mx3/mach-mx31ads.c
@@ -199,12 +199,11 @@ static void __init mx31ads_init_expio(void)
 	__raw_writew(0xFFFF, PBC_INTSTATUS_REG);
 	for (i = MXC_EXP_IO_BASE; i < (MXC_EXP_IO_BASE + MXC_MAX_EXP_IO_LINES);
 	     i++) {
-		set_irq_chip(i, &expio_irq_chip);
-		set_irq_handler(i, handle_level_irq);
+		irq_set_chip_and_handler(i, &expio_irq_chip, handle_level_irq);
 		set_irq_flags(i, IRQF_VALID);
 	}
-	set_irq_type(EXPIO_PARENT_INT, IRQ_TYPE_LEVEL_HIGH);
-	set_irq_chained_handler(EXPIO_PARENT_INT, mx31ads_expio_irq_handler);
+	irq_set_irq_type(EXPIO_PARENT_INT, IRQ_TYPE_LEVEL_HIGH);
+	irq_set_chained_handler(EXPIO_PARENT_INT, mx31ads_expio_irq_handler);
 }
 
 #ifdef CONFIG_MACH_MX31ADS_WM1133_EV1
diff --git a/arch/arm/mach-mx3/mach-pcm043.c b/arch/arm/mach-mx3/mach-pcm043.c
index b3ecfb22d241..036ba1a4704b 100644
--- a/arch/arm/mach-mx3/mach-pcm043.c
+++ b/arch/arm/mach-mx3/mach-pcm043.c
@@ -40,6 +40,7 @@
 #include <mach/mx3fb.h>
 #include <mach/ulpi.h>
 #include <mach/audmux.h>
+#include <mach/esdhc.h>
 
 #include "devices-imx35.h"
 #include "devices.h"
@@ -217,11 +218,15 @@ static iomux_v3_cfg_t pcm043_pads[] = {
 	MX35_PAD_SD1_DATA1__ESDHC1_DAT1,
 	MX35_PAD_SD1_DATA2__ESDHC1_DAT2,
 	MX35_PAD_SD1_DATA3__ESDHC1_DAT3,
+	MX35_PAD_ATA_DATA10__GPIO2_23, /* WriteProtect */
+	MX35_PAD_ATA_DATA11__GPIO2_24, /* CardDetect */
 };
 
 #define AC97_GPIO_TXFS	IMX_GPIO_NR(2, 31)
 #define AC97_GPIO_TXD	IMX_GPIO_NR(2, 28)
 #define AC97_GPIO_RESET	IMX_GPIO_NR(2, 0)
+#define SD1_GPIO_WP	IMX_GPIO_NR(2, 23)
+#define SD1_GPIO_CD	IMX_GPIO_NR(2, 24)
 
 static void pcm043_ac97_warm_reset(struct snd_ac97 *ac97)
 {
@@ -346,6 +351,11 @@ static int __init pcm043_otg_mode(char *options)
 }
 __setup("otg_mode=", pcm043_otg_mode);
 
+static struct esdhc_platform_data sd1_pdata = {
+	.wp_gpio = SD1_GPIO_WP,
+	.cd_gpio = SD1_GPIO_CD,
+};
+
 /*
  * Board specific initialization.
  */
@@ -395,7 +405,7 @@ static void __init pcm043_init(void)
 		imx35_add_fsl_usb2_udc(&otg_device_pdata);
 
 	imx35_add_flexcan1(NULL);
-	imx35_add_sdhci_esdhc_imx(0, NULL);
+	imx35_add_sdhci_esdhc_imx(0, &sd1_pdata);
 }
 
 static void __init pcm043_timer_init(void)
diff --git a/arch/arm/mach-mx5/Kconfig b/arch/arm/mach-mx5/Kconfig
index 83ee08847d4d..159340da9191 100644
--- a/arch/arm/mach-mx5/Kconfig
+++ b/arch/arm/mach-mx5/Kconfig
@@ -165,6 +165,7 @@ config MACH_MX53_LOCO
 	select IMX_HAVE_PLATFORM_IMX_I2C
 	select IMX_HAVE_PLATFORM_IMX_UART
 	select IMX_HAVE_PLATFORM_SDHCI_ESDHC_IMX
+	select IMX_HAVE_PLATFORM_GPIO_KEYS
 	help
 	  Include support for MX53 LOCO platform. This includes specific
 	  configurations for the board and its peripherals.
diff --git a/arch/arm/mach-mx5/Makefile b/arch/arm/mach-mx5/Makefile
index 4f63048be3ca..0b9338cec516 100644
--- a/arch/arm/mach-mx5/Makefile
+++ b/arch/arm/mach-mx5/Makefile
@@ -3,7 +3,7 @@
 #
 
 # Object file lists.
-obj-y   := cpu.o mm.o clock-mx51-mx53.o devices.o ehci.o
+obj-y   := cpu.o mm.o clock-mx51-mx53.o devices.o ehci.o system.o
 obj-$(CONFIG_SOC_IMX50) += mm-mx50.o
 
 obj-$(CONFIG_CPU_FREQ_IMX)    += cpu_op-mx51.o
diff --git a/arch/arm/mach-mx5/board-mx51_babbage.c b/arch/arm/mach-mx5/board-mx51_babbage.c
index b2ecd194e76d..bea4e4135f9d 100644
--- a/arch/arm/mach-mx5/board-mx51_babbage.c
+++ b/arch/arm/mach-mx5/board-mx51_babbage.c
@@ -228,13 +228,12 @@ static inline void babbage_fec_reset(void)
 	int ret;
 
 	/* reset FEC PHY */
-	ret = gpio_request(BABBAGE_FEC_PHY_RESET, "fec-phy-reset");
+	ret = gpio_request_one(BABBAGE_FEC_PHY_RESET,
+					GPIOF_OUT_INIT_LOW, "fec-phy-reset");
 	if (ret) {
 		printk(KERN_ERR"failed to get GPIO_FEC_PHY_RESET: %d\n", ret);
 		return;
 	}
-	gpio_direction_output(BABBAGE_FEC_PHY_RESET, 0);
-	gpio_set_value(BABBAGE_FEC_PHY_RESET, 0);
 	msleep(1);
 	gpio_set_value(BABBAGE_FEC_PHY_RESET, 1);
 }
diff --git a/arch/arm/mach-mx5/board-mx53_evk.c b/arch/arm/mach-mx5/board-mx53_evk.c
index 7b5735c5ea59..2af3f43f74db 100644
--- a/arch/arm/mach-mx5/board-mx53_evk.c
+++ b/arch/arm/mach-mx5/board-mx53_evk.c
@@ -34,7 +34,7 @@
 #include <mach/imx-uart.h>
 #include <mach/iomux-mx53.h>
 
-#define SMD_FEC_PHY_RST		IMX_GPIO_NR(7, 6)
+#define MX53_EVK_FEC_PHY_RST	IMX_GPIO_NR(7, 6)
 #define EVK_ECSPI1_CS0		IMX_GPIO_NR(2, 30)
 #define EVK_ECSPI1_CS1		IMX_GPIO_NR(3, 19)
 
@@ -82,15 +82,14 @@ static inline void mx53_evk_fec_reset(void)
 	int ret;
 
 	/* reset FEC PHY */
-	ret = gpio_request(SMD_FEC_PHY_RST, "fec-phy-reset");
+	ret = gpio_request_one(MX53_EVK_FEC_PHY_RST, GPIOF_OUT_INIT_LOW,
+							"fec-phy-reset");
 	if (ret) {
 		printk(KERN_ERR"failed to get GPIO_FEC_PHY_RESET: %d\n", ret);
 		return;
 	}
-	gpio_direction_output(SMD_FEC_PHY_RST, 0);
-	gpio_set_value(SMD_FEC_PHY_RST, 0);
 	msleep(1);
-	gpio_set_value(SMD_FEC_PHY_RST, 1);
+	gpio_set_value(MX53_EVK_FEC_PHY_RST, 1);
 }
 
 static struct fec_platform_data mx53_evk_fec_pdata = {
diff --git a/arch/arm/mach-mx5/board-mx53_loco.c b/arch/arm/mach-mx5/board-mx53_loco.c
index 0a18f8d23eb0..10a1bea10548 100644
--- a/arch/arm/mach-mx5/board-mx53_loco.c
+++ b/arch/arm/mach-mx5/board-mx53_loco.c
@@ -36,6 +36,9 @@
 #include "crm_regs.h"
 #include "devices-imx53.h"
 
+#define MX53_LOCO_POWER			IMX_GPIO_NR(1, 8)
+#define MX53_LOCO_UI1			IMX_GPIO_NR(2, 14)
+#define MX53_LOCO_UI2			IMX_GPIO_NR(2, 15)
 #define LOCO_FEC_PHY_RST		IMX_GPIO_NR(7, 6)
 
 static iomux_v3_cfg_t mx53_loco_pads[] = {
@@ -180,6 +183,27 @@ static iomux_v3_cfg_t mx53_loco_pads[] = {
 	MX53_PAD_GPIO_8__GPIO1_8,
 };
 
+#define GPIO_BUTTON(gpio_num, ev_code, act_low, descr, wake)	\
+{								\
+	.gpio		= gpio_num,				\
+	.type		= EV_KEY,				\
+	.code		= ev_code,				\
+	.active_low	= act_low,				\
+	.desc		= "btn " descr,				\
+	.wakeup		= wake,					\
+}
+
+static const struct gpio_keys_button loco_buttons[] __initconst = {
+	GPIO_BUTTON(MX53_LOCO_POWER, KEY_POWER, 1, "power", 0),
+	GPIO_BUTTON(MX53_LOCO_UI1, KEY_VOLUMEUP, 1, "volume-up", 0),
+	GPIO_BUTTON(MX53_LOCO_UI2, KEY_VOLUMEDOWN, 1, "volume-down", 0),
+};
+
+static const struct gpio_keys_platform_data loco_button_data __initconst = {
+	.buttons        = loco_buttons,
+	.nbuttons       = ARRAY_SIZE(loco_buttons),
+};
+
 static inline void mx53_loco_fec_reset(void)
 {
 	int ret;
@@ -215,6 +239,7 @@ static void __init mx53_loco_board_init(void)
 	imx53_add_imx_i2c(1, &mx53_loco_i2c_data);
 	imx53_add_sdhci_esdhc_imx(0, NULL);
 	imx53_add_sdhci_esdhc_imx(2, NULL);
+	imx_add_gpio_keys(&loco_button_data);
 }
 
 static void __init mx53_loco_timer_init(void)
diff --git a/arch/arm/mach-mx5/clock-mx51-mx53.c b/arch/arm/mach-mx5/clock-mx51-mx53.c
index 652ace413825..fdbc05ed5513 100644
--- a/arch/arm/mach-mx5/clock-mx51-mx53.c
+++ b/arch/arm/mach-mx5/clock-mx51-mx53.c
@@ -865,6 +865,13 @@ static struct clk aips_tz2_clk = {
 	.disable = _clk_ccgr_disable_inwait,
 };
 
+static struct clk gpc_dvfs_clk = {
+	.enable_reg = MXC_CCM_CCGR5,
+	.enable_shift = MXC_CCM_CCGRx_CG12_OFFSET,
+	.enable = _clk_ccgr_enable,
+	.disable = _clk_ccgr_disable,
+};
+
 static struct clk gpt_32k_clk = {
 	.id = 0,
 	.parent = &ckil_clk,
@@ -1448,6 +1455,7 @@ static struct clk_lookup mx51_lookups[] = {
 	_REGISTER_CLOCK("imx-ipuv3", NULL, ipu_clk)
 	_REGISTER_CLOCK("imx-ipuv3", "di0", ipu_di0_clk)
 	_REGISTER_CLOCK("imx-ipuv3", "di1", ipu_di1_clk)
+	_REGISTER_CLOCK(NULL, "gpc_dvfs", gpc_dvfs_clk)
 };
 
 static struct clk_lookup mx53_lookups[] = {
@@ -1511,6 +1519,7 @@ int __init mx51_clocks_init(unsigned long ckil, unsigned long osc,
 	clk_enable(&iim_clk);
 	mx51_revision();
 	clk_disable(&iim_clk);
+	mx51_display_revision();
 
 	/* move usb_phy_clk to 24MHz */
 	clk_set_parent(&usb_phy1_clk, &osc_clk);
diff --git a/arch/arm/mach-mx5/cpu.c b/arch/arm/mach-mx5/cpu.c
index df46b5e60857..472bdfab2e55 100644
--- a/arch/arm/mach-mx5/cpu.c
+++ b/arch/arm/mach-mx5/cpu.c
@@ -21,6 +21,7 @@
 static int cpu_silicon_rev = -1;
 
 #define IIM_SREV 0x24
+#define MX50_HW_ADADIG_DIGPROG	0xB0
 
 static int get_mx51_srev(void)
 {
@@ -51,6 +52,26 @@ int mx51_revision(void)
 }
 EXPORT_SYMBOL(mx51_revision);
 
+void mx51_display_revision(void)
+{
+	int rev;
+	char *srev;
+	rev = mx51_revision();
+
+	switch (rev) {
+	case IMX_CHIP_REVISION_2_0:
+		srev = IMX_CHIP_REVISION_2_0_STRING;
+		break;
+	case IMX_CHIP_REVISION_3_0:
+		srev = IMX_CHIP_REVISION_3_0_STRING;
+		break;
+	default:
+		srev = IMX_CHIP_REVISION_UNKNOWN_STRING;
+	}
+	printk(KERN_INFO "CPU identified as i.MX51, silicon rev %s\n", srev);
+}
+EXPORT_SYMBOL(mx51_display_revision);
+
 #ifdef CONFIG_NEON
 
 /*
@@ -107,6 +128,44 @@ int mx53_revision(void)
 }
 EXPORT_SYMBOL(mx53_revision);
 
+static int get_mx50_srev(void)
+{
+	void __iomem *anatop = ioremap(MX50_ANATOP_BASE_ADDR, SZ_8K);
+	u32 rev;
+
+	if (!anatop) {
+		cpu_silicon_rev = -EINVAL;
+		return 0;
+	}
+
+	rev = readl(anatop + MX50_HW_ADADIG_DIGPROG);
+	rev &= 0xff;
+
+	iounmap(anatop);
+	if (rev == 0x0)
+		return IMX_CHIP_REVISION_1_0;
+	else if (rev == 0x1)
+		return IMX_CHIP_REVISION_1_1;
+	return 0;
+}
+
+/*
+ * Returns:
+ *	the silicon revision of the cpu
+ *	-EINVAL - not a mx50
+ */
+int mx50_revision(void)
+{
+	if (!cpu_is_mx50())
+		return -EINVAL;
+
+	if (cpu_silicon_rev == -1)
+		cpu_silicon_rev = get_mx50_srev();
+
+	return cpu_silicon_rev;
+}
+EXPORT_SYMBOL(mx50_revision);
+
 static int __init post_cpu_init(void)
 {
 	unsigned int reg;
diff --git a/arch/arm/mach-mx5/eukrea_mbimx51-baseboard.c b/arch/arm/mach-mx5/eukrea_mbimx51-baseboard.c
index e83ffadb65f8..4a8550529b04 100644
--- a/arch/arm/mach-mx5/eukrea_mbimx51-baseboard.c
+++ b/arch/arm/mach-mx5/eukrea_mbimx51-baseboard.c
@@ -212,7 +212,7 @@ void __init eukrea_mbimx51_baseboard_init(void)
 
 	gpio_request(MBIMX51_TSC2007_GPIO, "tsc2007_irq");
 	gpio_direction_input(MBIMX51_TSC2007_GPIO);
-	set_irq_type(MBIMX51_TSC2007_IRQ, IRQF_TRIGGER_FALLING);
+	irq_set_irq_type(MBIMX51_TSC2007_IRQ, IRQF_TRIGGER_FALLING);
 	i2c_register_board_info(1, mbimx51_i2c_devices,
 				ARRAY_SIZE(mbimx51_i2c_devices));
 
diff --git a/arch/arm/mach-mx5/eukrea_mbimxsd-baseboard.c b/arch/arm/mach-mx5/eukrea_mbimxsd-baseboard.c
index c372a4373691..e6c1119c20ae 100644
--- a/arch/arm/mach-mx5/eukrea_mbimxsd-baseboard.c
+++ b/arch/arm/mach-mx5/eukrea_mbimxsd-baseboard.c
@@ -67,6 +67,10 @@ static iomux_v3_cfg_t eukrea_mbimxsd_pads[] = {
 	MX51_PAD_SD1_DATA1__SD1_DATA1,
 	MX51_PAD_SD1_DATA2__SD1_DATA2,
 	MX51_PAD_SD1_DATA3__SD1_DATA3,
+	/* SD1 CD */
+	_MX51_PAD_GPIO1_0__SD1_CD | MUX_PAD_CTRL(PAD_CTL_PUS_22K_UP |
+			PAD_CTL_PKE | PAD_CTL_SRE_FAST |
+			PAD_CTL_DSE_HIGH | PAD_CTL_PUE | PAD_CTL_HYS),
 };
 
 #define GPIO_LED1	IMX_GPIO_NR(3, 30)
diff --git a/arch/arm/mach-mx5/mx51_efika.c b/arch/arm/mach-mx5/mx51_efika.c
index 51a67fc7f0ef..d0c7075937cf 100644
--- a/arch/arm/mach-mx5/mx51_efika.c
+++ b/arch/arm/mach-mx5/mx51_efika.c
@@ -42,7 +42,6 @@
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
 #include <asm/mach/time.h>
-#include <asm/mach-types.h>
 
 #include "devices-imx51.h"
 #include "devices.h"
@@ -572,8 +571,10 @@ static struct mc13xxx_regulator_init_data mx51_efika_regulators[] = {
 
 static struct mc13xxx_platform_data mx51_efika_mc13892_data = {
 	.flags = MC13XXX_USE_RTC | MC13XXX_USE_REGULATOR,
-	.num_regulators = ARRAY_SIZE(mx51_efika_regulators),
-	.regulators = mx51_efika_regulators,
+	.regulators = {
+		.num_regulators = ARRAY_SIZE(mx51_efika_regulators),
+		.regulators = mx51_efika_regulators,
+	},
 };
 
 static struct spi_board_info mx51_efika_spi_board_info[] __initdata = {
diff --git a/arch/arm/mach-mx5/system.c b/arch/arm/mach-mx5/system.c
new file mode 100644
index 000000000000..76ae8dc33e00
--- /dev/null
+++ b/arch/arm/mach-mx5/system.c
@@ -0,0 +1,84 @@
+/*
+ * Copyright (C) 2011 Freescale Semiconductor, Inc. All Rights Reserved.
+ */
+
+/*
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+#include <linux/platform_device.h>
+#include <linux/io.h>
+#include <mach/hardware.h>
+#include "crm_regs.h"
+
+/* set cpu low power mode before WFI instruction. This function is called
+  * mx5 because it can be used for mx50, mx51, and mx53.*/
+void mx5_cpu_lp_set(enum mxc_cpu_pwr_mode mode)
+{
+	u32 plat_lpc, arm_srpgcr, ccm_clpcr;
+	u32 empgc0, empgc1;
+	int stop_mode = 0;
+
+	/* always allow platform to issue a deep sleep mode request */
+	plat_lpc = __raw_readl(MXC_CORTEXA8_PLAT_LPC) &
+	    ~(MXC_CORTEXA8_PLAT_LPC_DSM);
+	ccm_clpcr = __raw_readl(MXC_CCM_CLPCR) & ~(MXC_CCM_CLPCR_LPM_MASK);
+	arm_srpgcr = __raw_readl(MXC_SRPG_ARM_SRPGCR) & ~(MXC_SRPGCR_PCR);
+	empgc0 = __raw_readl(MXC_SRPG_EMPGC0_SRPGCR) & ~(MXC_SRPGCR_PCR);
+	empgc1 = __raw_readl(MXC_SRPG_EMPGC1_SRPGCR) & ~(MXC_SRPGCR_PCR);
+
+	switch (mode) {
+	case WAIT_CLOCKED:
+		break;
+	case WAIT_UNCLOCKED:
+		ccm_clpcr |= 0x1 << MXC_CCM_CLPCR_LPM_OFFSET;
+		break;
+	case WAIT_UNCLOCKED_POWER_OFF:
+	case STOP_POWER_OFF:
+		plat_lpc |= MXC_CORTEXA8_PLAT_LPC_DSM
+			    | MXC_CORTEXA8_PLAT_LPC_DBG_DSM;
+		if (mode == WAIT_UNCLOCKED_POWER_OFF) {
+			ccm_clpcr |= 0x1 << MXC_CCM_CLPCR_LPM_OFFSET;
+			ccm_clpcr &= ~MXC_CCM_CLPCR_VSTBY;
+			ccm_clpcr &= ~MXC_CCM_CLPCR_SBYOS;
+			stop_mode = 0;
+		} else {
+			ccm_clpcr |= 0x2 << MXC_CCM_CLPCR_LPM_OFFSET;
+			ccm_clpcr |= 0x3 << MXC_CCM_CLPCR_STBY_COUNT_OFFSET;
+			ccm_clpcr |= MXC_CCM_CLPCR_VSTBY;
+			ccm_clpcr |= MXC_CCM_CLPCR_SBYOS;
+			stop_mode = 1;
+		}
+		arm_srpgcr |= MXC_SRPGCR_PCR;
+
+		if (tzic_enable_wake(1) != 0)
+			return;
+		break;
+	case STOP_POWER_ON:
+		ccm_clpcr |= 0x2 << MXC_CCM_CLPCR_LPM_OFFSET;
+		break;
+	default:
+		printk(KERN_WARNING "UNKNOWN cpu power mode: %d\n", mode);
+		return;
+	}
+
+	__raw_writel(plat_lpc, MXC_CORTEXA8_PLAT_LPC);
+	__raw_writel(ccm_clpcr, MXC_CCM_CLPCR);
+	__raw_writel(arm_srpgcr, MXC_SRPG_ARM_SRPGCR);
+
+	/* Enable NEON SRPG for all but MX50TO1.0. */
+	if (mx50_revision() != IMX_CHIP_REVISION_1_0)
+		__raw_writel(arm_srpgcr, MXC_SRPG_NEON_SRPGCR);
+
+	if (stop_mode) {
+		empgc0 |= MXC_SRPGCR_PCR;
+		empgc1 |= MXC_SRPGCR_PCR;
+
+		__raw_writel(empgc0, MXC_SRPG_EMPGC0_SRPGCR);
+		__raw_writel(empgc1, MXC_SRPG_EMPGC1_SRPGCR);
+	}
+}
diff --git a/arch/arm/mach-mxs/Kconfig b/arch/arm/mach-mxs/Kconfig
index 4f6f174af6c8..4522fbb235d5 100644
--- a/arch/arm/mach-mxs/Kconfig
+++ b/arch/arm/mach-mxs/Kconfig
@@ -22,6 +22,7 @@ config MACH_MX23EVK
 	select SOC_IMX23
 	select MXS_HAVE_AMBA_DUART
 	select MXS_HAVE_PLATFORM_AUART
+	select MXS_HAVE_PLATFORM_MXS_MMC
 	select MXS_HAVE_PLATFORM_MXSFB
 	default y
 	help
@@ -35,6 +36,7 @@ config MACH_MX28EVK
 	select MXS_HAVE_PLATFORM_AUART
 	select MXS_HAVE_PLATFORM_FEC
 	select MXS_HAVE_PLATFORM_FLEXCAN
+	select MXS_HAVE_PLATFORM_MXS_MMC
 	select MXS_HAVE_PLATFORM_MXSFB
 	select MXS_OCOTP
 	default y
diff --git a/arch/arm/mach-mxs/clock-mx23.c b/arch/arm/mach-mxs/clock-mx23.c
index d133c7f30940..c3577ea789ac 100644
--- a/arch/arm/mach-mxs/clock-mx23.c
+++ b/arch/arm/mach-mxs/clock-mx23.c
@@ -521,6 +521,15 @@ static int clk_misc_init(void)
 	__raw_writel(BM_CLKCTRL_CPU_INTERRUPT_WAIT,
 			CLKCTRL_BASE_ADDR + HW_CLKCTRL_CPU_SET);
 
+	/*
+	 * 480 MHz seems too high to be ssp clock source directly,
+	 * so set frac to get a 288 MHz ref_io.
+	 */
+	reg = __raw_readl(CLKCTRL_BASE_ADDR + HW_CLKCTRL_FRAC);
+	reg &= ~BM_CLKCTRL_FRAC_IOFRAC;
+	reg |= 30 << BP_CLKCTRL_FRAC_IOFRAC;
+	__raw_writel(reg, CLKCTRL_BASE_ADDR + HW_CLKCTRL_FRAC);
+
 	return 0;
 }
 
@@ -528,6 +537,12 @@ int __init mx23_clocks_init(void)
 {
 	clk_misc_init();
 
+	/*
+	 * source ssp clock from ref_io than ref_xtal,
+	 * as ref_xtal only provides 24 MHz as maximum.
+	 */
+	clk_set_parent(&ssp_clk, &ref_io_clk);
+
 	clk_enable(&cpu_clk);
 	clk_enable(&hbus_clk);
 	clk_enable(&xbus_clk);
diff --git a/arch/arm/mach-mxs/clock-mx28.c b/arch/arm/mach-mxs/clock-mx28.c
index 5e489a2b2023..1ad97fed1e94 100644
--- a/arch/arm/mach-mxs/clock-mx28.c
+++ b/arch/arm/mach-mxs/clock-mx28.c
@@ -618,6 +618,8 @@ static struct clk_lookup lookups[] = {
 	_REGISTER_CLOCK("pll2", NULL, pll2_clk)
 	_REGISTER_CLOCK("mxs-dma-apbh", NULL, hbus_clk)
 	_REGISTER_CLOCK("mxs-dma-apbx", NULL, xbus_clk)
+	_REGISTER_CLOCK("mxs-mmc.0", NULL, ssp0_clk)
+	_REGISTER_CLOCK("mxs-mmc.1", NULL, ssp1_clk)
 	_REGISTER_CLOCK("flexcan.0", NULL, can0_clk)
 	_REGISTER_CLOCK("flexcan.1", NULL, can1_clk)
 	_REGISTER_CLOCK(NULL, "usb0", usb0_clk)
@@ -737,6 +739,15 @@ static int clk_misc_init(void)
 	reg |= BM_CLKCTRL_ENET_CLK_OUT_EN;
 	__raw_writel(reg, CLKCTRL_BASE_ADDR + HW_CLKCTRL_ENET);
 
+	/*
+	 * 480 MHz seems too high to be ssp clock source directly,
+	 * so set frac0 to get a 288 MHz ref_io0.
+	 */
+	reg = __raw_readl(CLKCTRL_BASE_ADDR + HW_CLKCTRL_FRAC0);
+	reg &= ~BM_CLKCTRL_FRAC0_IO0FRAC;
+	reg |= 30 << BP_CLKCTRL_FRAC0_IO0FRAC;
+	__raw_writel(reg, CLKCTRL_BASE_ADDR + HW_CLKCTRL_FRAC0);
+
 	return 0;
 }
 
@@ -744,6 +755,13 @@ int __init mx28_clocks_init(void)
 {
 	clk_misc_init();
 
+	/*
+	 * source ssp clock from ref_io0 than ref_xtal,
+	 * as ref_xtal only provides 24 MHz as maximum.
+	 */
+	clk_set_parent(&ssp0_clk, &ref_io0_clk);
+	clk_set_parent(&ssp1_clk, &ref_io0_clk);
+
 	clk_enable(&cpu_clk);
 	clk_enable(&hbus_clk);
 	clk_enable(&xbus_clk);
diff --git a/arch/arm/mach-mxs/devices-mx23.h b/arch/arm/mach-mxs/devices-mx23.h
index c7e14f4e3669..c6f345febd39 100644
--- a/arch/arm/mach-mxs/devices-mx23.h
+++ b/arch/arm/mach-mxs/devices-mx23.h
@@ -21,6 +21,10 @@ extern const struct mxs_auart_data mx23_auart_data[] __initconst;
 #define mx23_add_auart0()		mx23_add_auart(0)
 #define mx23_add_auart1()		mx23_add_auart(1)
 
+extern const struct mxs_mxs_mmc_data mx23_mxs_mmc_data[] __initconst;
+#define mx23_add_mxs_mmc(id, pdata) \
+	mxs_add_mxs_mmc(&mx23_mxs_mmc_data[id], pdata)
+
 #define mx23_add_mxs_pwm(id)		mxs_add_mxs_pwm(MX23_PWM_BASE_ADDR, id)
 
 struct platform_device *__init mx23_add_mxsfb(
diff --git a/arch/arm/mach-mxs/devices-mx28.h b/arch/arm/mach-mxs/devices-mx28.h
index 9d08555c4cf0..c473eddce8cf 100644
--- a/arch/arm/mach-mxs/devices-mx28.h
+++ b/arch/arm/mach-mxs/devices-mx28.h
@@ -37,6 +37,10 @@ extern const struct mxs_flexcan_data mx28_flexcan_data[] __initconst;
 extern const struct mxs_i2c_data mx28_mxs_i2c_data[] __initconst;
 #define mx28_add_mxs_i2c(id)		mxs_add_mxs_i2c(&mx28_mxs_i2c_data[id])
 
+extern const struct mxs_mxs_mmc_data mx28_mxs_mmc_data[] __initconst;
+#define mx28_add_mxs_mmc(id, pdata) \
+	mxs_add_mxs_mmc(&mx28_mxs_mmc_data[id], pdata)
+
 #define mx28_add_mxs_pwm(id)		mxs_add_mxs_pwm(MX28_PWM_BASE_ADDR, id)
 
 struct platform_device *__init mx28_add_mxsfb(
diff --git a/arch/arm/mach-mxs/devices/Kconfig b/arch/arm/mach-mxs/devices/Kconfig
index 1451ad060d82..acf9eea124c0 100644
--- a/arch/arm/mach-mxs/devices/Kconfig
+++ b/arch/arm/mach-mxs/devices/Kconfig
@@ -15,6 +15,9 @@ config MXS_HAVE_PLATFORM_FLEXCAN
 config MXS_HAVE_PLATFORM_MXS_I2C
 	bool
 
+config MXS_HAVE_PLATFORM_MXS_MMC
+	bool
+
 config MXS_HAVE_PLATFORM_MXS_PWM
 	bool
 
diff --git a/arch/arm/mach-mxs/devices/Makefile b/arch/arm/mach-mxs/devices/Makefile
index 0d9bea30b0a2..324f2824d38d 100644
--- a/arch/arm/mach-mxs/devices/Makefile
+++ b/arch/arm/mach-mxs/devices/Makefile
@@ -4,5 +4,6 @@ obj-y += platform-dma.o
 obj-$(CONFIG_MXS_HAVE_PLATFORM_FEC) += platform-fec.o
 obj-$(CONFIG_MXS_HAVE_PLATFORM_FLEXCAN) += platform-flexcan.o
 obj-$(CONFIG_MXS_HAVE_PLATFORM_MXS_I2C) += platform-mxs-i2c.o
+obj-$(CONFIG_MXS_HAVE_PLATFORM_MXS_MMC) += platform-mxs-mmc.o
 obj-$(CONFIG_MXS_HAVE_PLATFORM_MXS_PWM) += platform-mxs-pwm.o
 obj-$(CONFIG_MXS_HAVE_PLATFORM_MXSFB) += platform-mxsfb.o
diff --git a/arch/arm/mach-mxs/devices/platform-mxs-mmc.c b/arch/arm/mach-mxs/devices/platform-mxs-mmc.c
new file mode 100644
index 000000000000..382dacbeca21
--- /dev/null
+++ b/arch/arm/mach-mxs/devices/platform-mxs-mmc.c
@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) 2010 Pengutronix
+ * Uwe Kleine-Koenig <u.kleine-koenig@pengutronix.de>
+ *
+ * Copyright 2011 Freescale Semiconductor, Inc. All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License version 2 as published by the
+ * Free Software Foundation.
+ */
+
+#include <linux/compiler.h>
+#include <linux/err.h>
+#include <linux/init.h>
+
+#include <mach/mx23.h>
+#include <mach/mx28.h>
+#include <mach/devices-common.h>
+
+#define mxs_mxs_mmc_data_entry_single(soc, _id, hwid)			\
+	{								\
+		.id = _id,						\
+		.iobase = soc ## _SSP ## hwid ## _BASE_ADDR,		\
+		.dma = soc ## _DMA_SSP ## hwid,				\
+		.irq_err = soc ## _INT_SSP ## hwid ## _ERROR,		\
+		.irq_dma = soc ## _INT_SSP ## hwid ## _DMA,		\
+	}
+
+#define mxs_mxs_mmc_data_entry(soc, _id, hwid)				\
+	[_id] = mxs_mxs_mmc_data_entry_single(soc, _id, hwid)
+
+
+#ifdef CONFIG_SOC_IMX23
+const struct mxs_mxs_mmc_data mx23_mxs_mmc_data[] __initconst = {
+	mxs_mxs_mmc_data_entry(MX23, 0, 1),
+	mxs_mxs_mmc_data_entry(MX23, 1, 2),
+};
+#endif
+
+#ifdef CONFIG_SOC_IMX28
+const struct mxs_mxs_mmc_data mx28_mxs_mmc_data[] __initconst = {
+	mxs_mxs_mmc_data_entry(MX28, 0, 0),
+	mxs_mxs_mmc_data_entry(MX28, 1, 1),
+};
+#endif
+
+struct platform_device *__init mxs_add_mxs_mmc(
+		const struct mxs_mxs_mmc_data *data,
+		const struct mxs_mmc_platform_data *pdata)
+{
+	struct resource res[] = {
+		{
+			.start	= data->iobase,
+			.end	= data->iobase + SZ_8K - 1,
+			.flags	= IORESOURCE_MEM,
+		}, {
+			.start	= data->dma,
+			.end	= data->dma,
+			.flags	= IORESOURCE_DMA,
+		}, {
+			.start	= data->irq_err,
+			.end	= data->irq_err,
+			.flags	= IORESOURCE_IRQ,
+		}, {
+			.start	= data->irq_dma,
+			.end	= data->irq_dma,
+			.flags	= IORESOURCE_IRQ,
+		},
+	};
+
+	return mxs_add_platform_device("mxs-mmc", data->id,
+			res, ARRAY_SIZE(res), pdata, sizeof(*pdata));
+}
diff --git a/arch/arm/mach-mxs/gpio.c b/arch/arm/mach-mxs/gpio.c
index 56fa2ed15222..2c950fef71a8 100644
--- a/arch/arm/mach-mxs/gpio.c
+++ b/arch/arm/mach-mxs/gpio.c
@@ -136,7 +136,7 @@ static int mxs_gpio_set_irq_type(struct irq_data *d, unsigned int type)
 static void mxs_gpio_irq_handler(u32 irq, struct irq_desc *desc)
 {
 	u32 irq_stat;
-	struct mxs_gpio_port *port = (struct mxs_gpio_port *)get_irq_data(irq);
+	struct mxs_gpio_port *port = (struct mxs_gpio_port *)irq_get_handler_data(irq);
 	u32 gpio_irq_no_base = port->virtual_irq_start;
 
 	desc->irq_data.chip->irq_ack(&desc->irq_data);
@@ -265,14 +265,14 @@ int __init mxs_gpio_init(struct mxs_gpio_port *port, int cnt)
 
 		for (j = port[i].virtual_irq_start;
 			j < port[i].virtual_irq_start + 32; j++) {
-			set_irq_chip(j, &gpio_irq_chip);
-			set_irq_handler(j, handle_level_irq);
+			irq_set_chip_and_handler(j, &gpio_irq_chip,
+						 handle_level_irq);
 			set_irq_flags(j, IRQF_VALID);
 		}
 
 		/* setup one handler for each entry */
-		set_irq_chained_handler(port[i].irq, mxs_gpio_irq_handler);
-		set_irq_data(port[i].irq, &port[i]);
+		irq_set_chained_handler(port[i].irq, mxs_gpio_irq_handler);
+		irq_set_handler_data(port[i].irq, &port[i]);
 
 		/* register gpio chip */
 		port[i].chip.direction_input = mxs_gpio_direction_input;
diff --git a/arch/arm/mach-mxs/icoll.c b/arch/arm/mach-mxs/icoll.c
index 0f4c120fc169..23ca9d083b2c 100644
--- a/arch/arm/mach-mxs/icoll.c
+++ b/arch/arm/mach-mxs/icoll.c
@@ -74,8 +74,7 @@ void __init icoll_init_irq(void)
 	mxs_reset_block(icoll_base + HW_ICOLL_CTRL);
 
 	for (i = 0; i < MXS_INTERNAL_IRQS; i++) {
-		set_irq_chip(i, &mxs_icoll_chip);
-		set_irq_handler(i, handle_level_irq);
+		irq_set_chip_and_handler(i, &mxs_icoll_chip, handle_level_irq);
 		set_irq_flags(i, IRQF_VALID);
 	}
 }
diff --git a/arch/arm/mach-mxs/include/mach/devices-common.h b/arch/arm/mach-mxs/include/mach/devices-common.h
index 71f24484b044..c5137f14c364 100644
--- a/arch/arm/mach-mxs/include/mach/devices-common.h
+++ b/arch/arm/mach-mxs/include/mach/devices-common.h
@@ -73,6 +73,19 @@ struct mxs_i2c_data {
 };
 struct platform_device * __init mxs_add_mxs_i2c(const struct mxs_i2c_data *data);
 
+/* mmc */
+#include <mach/mmc.h>
+struct mxs_mxs_mmc_data {
+	int id;
+	resource_size_t iobase;
+	resource_size_t dma;
+	resource_size_t irq_err;
+	resource_size_t irq_dma;
+};
+struct platform_device *__init mxs_add_mxs_mmc(
+		const struct mxs_mxs_mmc_data *data,
+		const struct mxs_mmc_platform_data *pdata);
+
 /* pwm */
 struct platform_device *__init mxs_add_mxs_pwm(
 		resource_size_t iobase, int id);
diff --git a/arch/arm/mach-mxs/mach-mx23evk.c b/arch/arm/mach-mxs/mach-mx23evk.c
index a66994f0518f..214e5b641bbc 100644
--- a/arch/arm/mach-mxs/mach-mx23evk.c
+++ b/arch/arm/mach-mxs/mach-mx23evk.c
@@ -28,6 +28,8 @@
 
 #define MX23EVK_LCD_ENABLE	MXS_GPIO_NR(1, 18)
 #define MX23EVK_BL_ENABLE	MXS_GPIO_NR(1, 28)
+#define MX23EVK_MMC0_WRITE_PROTECT	MXS_GPIO_NR(1, 30)
+#define MX23EVK_MMC0_SLOT_POWER		MXS_GPIO_NR(1, 29)
 
 static const iomux_cfg_t mx23evk_pads[] __initconst = {
 	/* duart */
@@ -73,6 +75,36 @@ static const iomux_cfg_t mx23evk_pads[] __initconst = {
 	MX23_PAD_LCD_RESET__GPIO_1_18 | MXS_PAD_CTRL,
 	/* backlight control */
 	MX23_PAD_PWM2__GPIO_1_28 | MXS_PAD_CTRL,
+
+	/* mmc */
+	MX23_PAD_SSP1_DATA0__SSP1_DATA0 |
+		(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
+	MX23_PAD_SSP1_DATA1__SSP1_DATA1 |
+		(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
+	MX23_PAD_SSP1_DATA2__SSP1_DATA2 |
+		(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
+	MX23_PAD_SSP1_DATA3__SSP1_DATA3 |
+		(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
+	MX23_PAD_GPMI_D08__SSP1_DATA4 |
+		(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
+	MX23_PAD_GPMI_D09__SSP1_DATA5 |
+		(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
+	MX23_PAD_GPMI_D10__SSP1_DATA6 |
+		(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
+	MX23_PAD_GPMI_D11__SSP1_DATA7 |
+		(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
+	MX23_PAD_SSP1_CMD__SSP1_CMD |
+		(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
+	MX23_PAD_SSP1_DETECT__SSP1_DETECT |
+		(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
+	MX23_PAD_SSP1_SCK__SSP1_SCK |
+		(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
+	/* write protect */
+	MX23_PAD_PWM4__GPIO_1_30 |
+		(MXS_PAD_4MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
+	/* slot power enable */
+	MX23_PAD_PWM3__GPIO_1_29 |
+		(MXS_PAD_4MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
 };
 
 /* mxsfb (lcdif) */
@@ -101,6 +133,11 @@ static const struct mxsfb_platform_data mx23evk_mxsfb_pdata __initconst = {
 	.ld_intf_width	= STMLCDIF_24BIT,
 };
 
+static struct mxs_mmc_platform_data mx23evk_mmc_pdata __initdata = {
+	.wp_gpio = MX23EVK_MMC0_WRITE_PROTECT,
+	.flags = SLOTF_8_BIT_CAPABLE,
+};
+
 static void __init mx23evk_init(void)
 {
 	int ret;
@@ -110,6 +147,13 @@ static void __init mx23evk_init(void)
 	mx23_add_duart();
 	mx23_add_auart0();
 
+	/* power on mmc slot by writing 0 to the gpio */
+	ret = gpio_request_one(MX23EVK_MMC0_SLOT_POWER, GPIOF_DIR_OUT,
+			       "mmc0-slot-power");
+	if (ret)
+		pr_warn("failed to request gpio mmc0-slot-power: %d\n", ret);
+	mx23_add_mxs_mmc(0, &mx23evk_mmc_pdata);
+
 	ret = gpio_request_one(MX23EVK_LCD_ENABLE, GPIOF_DIR_OUT, "lcd-enable");
 	if (ret)
 		pr_warn("failed to request gpio lcd-enable: %d\n", ret);
diff --git a/arch/arm/mach-mxs/mach-mx28evk.c b/arch/arm/mach-mxs/mach-mx28evk.c
index 08002d02267a..bb329b9a2608 100644
--- a/arch/arm/mach-mxs/mach-mx28evk.c
+++ b/arch/arm/mach-mxs/mach-mx28evk.c
@@ -34,6 +34,11 @@
 #define MX28EVK_LCD_ENABLE	MXS_GPIO_NR(3, 30)
 #define MX28EVK_FEC_PHY_RESET	MXS_GPIO_NR(4, 13)
 
+#define MX28EVK_MMC0_WRITE_PROTECT	MXS_GPIO_NR(2, 12)
+#define MX28EVK_MMC1_WRITE_PROTECT	MXS_GPIO_NR(0, 28)
+#define MX28EVK_MMC0_SLOT_POWER		MXS_GPIO_NR(3, 28)
+#define MX28EVK_MMC1_SLOT_POWER		MXS_GPIO_NR(3, 29)
+
 static const iomux_cfg_t mx28evk_pads[] __initconst = {
 	/* duart */
 	MX28_PAD_PWM0__DUART_RX | MXS_PAD_CTRL,
@@ -115,6 +120,65 @@ static const iomux_cfg_t mx28evk_pads[] __initconst = {
 	MX28_PAD_LCD_RESET__GPIO_3_30 | MXS_PAD_CTRL,
 	/* backlight control */
 	MX28_PAD_PWM2__GPIO_3_18 | MXS_PAD_CTRL,
+	/* mmc0 */
+	MX28_PAD_SSP0_DATA0__SSP0_D0 |
+		(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
+	MX28_PAD_SSP0_DATA1__SSP0_D1 |
+		(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
+	MX28_PAD_SSP0_DATA2__SSP0_D2 |
+		(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
+	MX28_PAD_SSP0_DATA3__SSP0_D3 |
+		(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
+	MX28_PAD_SSP0_DATA4__SSP0_D4 |
+		(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
+	MX28_PAD_SSP0_DATA5__SSP0_D5 |
+		(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
+	MX28_PAD_SSP0_DATA6__SSP0_D6 |
+		(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
+	MX28_PAD_SSP0_DATA7__SSP0_D7 |
+		(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
+	MX28_PAD_SSP0_CMD__SSP0_CMD |
+		(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
+	MX28_PAD_SSP0_DETECT__SSP0_CARD_DETECT |
+		(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
+	MX28_PAD_SSP0_SCK__SSP0_SCK |
+		(MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
+	/* write protect */
+	MX28_PAD_SSP1_SCK__GPIO_2_12 |
+		(MXS_PAD_4MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
+	/* slot power enable */
+	MX28_PAD_PWM3__GPIO_3_28 |
+		(MXS_PAD_4MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
+
+	/* mmc1 */
+	MX28_PAD_GPMI_D00__SSP1_D0 |
+		(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
+	MX28_PAD_GPMI_D01__SSP1_D1 |
+		(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
+	MX28_PAD_GPMI_D02__SSP1_D2 |
+		(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
+	MX28_PAD_GPMI_D03__SSP1_D3 |
+		(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
+	MX28_PAD_GPMI_D04__SSP1_D4 |
+		(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
+	MX28_PAD_GPMI_D05__SSP1_D5 |
+		(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
+	MX28_PAD_GPMI_D06__SSP1_D6 |
+		(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
+	MX28_PAD_GPMI_D07__SSP1_D7 |
+		(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
+	MX28_PAD_GPMI_RDY1__SSP1_CMD |
+		(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
+	MX28_PAD_GPMI_RDY0__SSP1_CARD_DETECT |
+		(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
+	MX28_PAD_GPMI_WRN__SSP1_SCK |
+		(MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
+	/* write protect */
+	MX28_PAD_GPMI_RESETN__GPIO_0_28 |
+		(MXS_PAD_4MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
+	/* slot power enable */
+	MX28_PAD_PWM4__GPIO_3_29 |
+		(MXS_PAD_4MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
 };
 
 /* fec */
@@ -258,6 +322,18 @@ static const struct mxsfb_platform_data mx28evk_mxsfb_pdata __initconst = {
 	.ld_intf_width	= STMLCDIF_24BIT,
 };
 
+static struct mxs_mmc_platform_data mx28evk_mmc_pdata[] __initdata = {
+	{
+		/* mmc0 */
+		.wp_gpio = MX28EVK_MMC0_WRITE_PROTECT,
+		.flags = SLOTF_8_BIT_CAPABLE,
+	}, {
+		/* mmc1 */
+		.wp_gpio = MX28EVK_MMC1_WRITE_PROTECT,
+		.flags = SLOTF_8_BIT_CAPABLE,
+	},
+};
+
 static void __init mx28evk_init(void)
 {
 	int ret;
@@ -297,6 +373,19 @@ static void __init mx28evk_init(void)
 		gpio_set_value(MX28EVK_BL_ENABLE, 1);
 
 	mx28_add_mxsfb(&mx28evk_mxsfb_pdata);
+
+	/* power on mmc slot by writing 0 to the gpio */
+	ret = gpio_request_one(MX28EVK_MMC0_SLOT_POWER, GPIOF_DIR_OUT,
+			       "mmc0-slot-power");
+	if (ret)
+		pr_warn("failed to request gpio mmc0-slot-power: %d\n", ret);
+	mx28_add_mxs_mmc(0, &mx28evk_mmc_pdata[0]);
+
+	ret = gpio_request_one(MX28EVK_MMC1_SLOT_POWER, GPIOF_DIR_OUT,
+			       "mmc1-slot-power");
+	if (ret)
+		pr_warn("failed to request gpio mmc1-slot-power: %d\n", ret);
+	mx28_add_mxs_mmc(1, &mx28evk_mmc_pdata[1]);
 }
 
 static void __init mx28evk_timer_init(void)
diff --git a/arch/arm/mach-mxs/module-tx28.c b/arch/arm/mach-mxs/module-tx28.c
index fa0b154da67b..0fcff47009cf 100644
--- a/arch/arm/mach-mxs/module-tx28.c
+++ b/arch/arm/mach-mxs/module-tx28.c
@@ -45,7 +45,7 @@ static const iomux_cfg_t tx28_fec_gpio_pads[] __initconst = {
 };
 
 #define FEC_MODE (MXS_PAD_8MA | MXS_PAD_PULLUP | MXS_PAD_3V3)
-static const iomux_cfg_t tx28_fec_pads[] __initconst = {
+static const iomux_cfg_t tx28_fec0_pads[] __initconst = {
 	MX28_PAD_ENET0_MDC__ENET0_MDC | FEC_MODE,
 	MX28_PAD_ENET0_MDIO__ENET0_MDIO | FEC_MODE,
 	MX28_PAD_ENET0_RX_EN__ENET0_RX_EN | FEC_MODE,
@@ -57,7 +57,20 @@ static const iomux_cfg_t tx28_fec_pads[] __initconst = {
 	MX28_PAD_ENET_CLK__CLKCTRL_ENET | FEC_MODE,
 };
 
-static const struct fec_platform_data tx28_fec_data __initconst = {
+static const iomux_cfg_t tx28_fec1_pads[] __initconst = {
+	MX28_PAD_ENET0_RXD2__ENET1_RXD0,
+	MX28_PAD_ENET0_RXD3__ENET1_RXD1,
+	MX28_PAD_ENET0_TXD2__ENET1_TXD0,
+	MX28_PAD_ENET0_TXD3__ENET1_TXD1,
+	MX28_PAD_ENET0_COL__ENET1_TX_EN,
+	MX28_PAD_ENET0_CRS__ENET1_RX_EN,
+};
+
+static struct fec_platform_data tx28_fec0_data = {
+	.phy = PHY_INTERFACE_MODE_RMII,
+};
+
+static struct fec_platform_data tx28_fec1_data = {
 	.phy = PHY_INTERFACE_MODE_RMII,
 };
 
@@ -108,15 +121,15 @@ int __init tx28_add_fec0(void)
 	pr_debug("%s: Deasserting FEC PHY RESET\n", __func__);
 	gpio_set_value(TX28_FEC_PHY_RESET, 1);
 
-	ret = mxs_iomux_setup_multiple_pads(tx28_fec_pads,
-			ARRAY_SIZE(tx28_fec_pads));
+	ret = mxs_iomux_setup_multiple_pads(tx28_fec0_pads,
+			ARRAY_SIZE(tx28_fec0_pads));
 	if (ret) {
 		pr_debug("%s: mxs_iomux_setup_multiple_pads() failed with rc: %d\n",
 				__func__, ret);
 		goto free_gpios;
 	}
-	pr_debug("%s: Registering FEC device\n", __func__);
-	mx28_add_fec(0, &tx28_fec_data);
+	pr_debug("%s: Registering FEC0 device\n", __func__);
+	mx28_add_fec(0, &tx28_fec0_data);
 	return 0;
 
 free_gpios:
@@ -129,3 +142,19 @@ free_gpios:
 
 	return ret;
 }
+
+int __init tx28_add_fec1(void)
+{
+	int ret;
+
+	ret = mxs_iomux_setup_multiple_pads(tx28_fec1_pads,
+			ARRAY_SIZE(tx28_fec1_pads));
+	if (ret) {
+		pr_debug("%s: mxs_iomux_setup_multiple_pads() failed with rc: %d\n",
+				__func__, ret);
+		return ret;
+	}
+	pr_debug("%s: Registering FEC1 device\n", __func__);
+	mx28_add_fec(1, &tx28_fec1_data);
+	return 0;
+}
diff --git a/arch/arm/mach-mxs/module-tx28.h b/arch/arm/mach-mxs/module-tx28.h
index df9e1b6e81bf..8ed425457d30 100644
--- a/arch/arm/mach-mxs/module-tx28.h
+++ b/arch/arm/mach-mxs/module-tx28.h
@@ -7,3 +7,4 @@
  * Free Software Foundation.
  */
 int __init tx28_add_fec0(void);
+int __init tx28_add_fec1(void);
diff --git a/arch/arm/mach-netx/generic.c b/arch/arm/mach-netx/generic.c
index 29ffa750fbe6..00023b5cf12b 100644
--- a/arch/arm/mach-netx/generic.c
+++ b/arch/arm/mach-netx/generic.c
@@ -171,13 +171,13 @@ void __init netx_init_irq(void)
 	vic_init(__io(io_p2v(NETX_PA_VIC)), 0, ~0, 0);
 
 	for (irq = NETX_IRQ_HIF_CHAINED(0); irq <= NETX_IRQ_HIF_LAST; irq++) {
-		set_irq_chip(irq, &netx_hif_chip);
-		set_irq_handler(irq, handle_level_irq);
+		irq_set_chip_and_handler(irq, &netx_hif_chip,
+					 handle_level_irq);
 		set_irq_flags(irq, IRQF_VALID);
 	}
 
 	writel(NETX_DPMAS_INT_EN_GLB_EN, NETX_DPMAS_INT_EN);
-	set_irq_chained_handler(NETX_IRQ_HIF, netx_hif_demux_handler);
+	irq_set_chained_handler(NETX_IRQ_HIF, netx_hif_demux_handler);
 }
 
 static int __init netx_init(void)
diff --git a/arch/arm/mach-ns9xxx/board-a9m9750dev.c b/arch/arm/mach-ns9xxx/board-a9m9750dev.c
index 0c0d5248c368..e27687d53504 100644
--- a/arch/arm/mach-ns9xxx/board-a9m9750dev.c
+++ b/arch/arm/mach-ns9xxx/board-a9m9750dev.c
@@ -107,8 +107,8 @@ void __init board_a9m9750dev_init_irq(void)
 				__func__);
 
 	for (i = FPGA_IRQ(0); i <= FPGA_IRQ(7); ++i) {
-		set_irq_chip(i, &a9m9750dev_fpga_chip);
-		set_irq_handler(i, handle_level_irq);
+		irq_set_chip_and_handler(i, &a9m9750dev_fpga_chip,
+					 handle_level_irq);
 		set_irq_flags(i, IRQF_VALID);
 	}
 
@@ -118,8 +118,8 @@ void __init board_a9m9750dev_init_irq(void)
 	REGSET(eic, SYS_EIC, LVEDG, LEVEL);
 	__raw_writel(eic, SYS_EIC(2));
 
-	set_irq_chained_handler(IRQ_NS9XXX_EXT2,
-			a9m9750dev_fpga_demux_handler);
+	irq_set_chained_handler(IRQ_NS9XXX_EXT2,
+				a9m9750dev_fpga_demux_handler);
 }
 
 void __init board_a9m9750dev_init_machine(void)
diff --git a/arch/arm/mach-ns9xxx/include/mach/board.h b/arch/arm/mach-ns9xxx/include/mach/board.h
index f7e9196eb9ab..19ca6de46a45 100644
--- a/arch/arm/mach-ns9xxx/include/mach/board.h
+++ b/arch/arm/mach-ns9xxx/include/mach/board.h
@@ -14,12 +14,10 @@
 #include <asm/mach-types.h>
 
 #define board_is_a9m9750dev()	(0			\
-		|| machine_is_cc9p9360dev()		\
 		|| machine_is_cc9p9750dev()		\
 		)
 
 #define board_is_a9mvali()	(0			\
-		|| machine_is_cc9p9360val() 		\
 		|| machine_is_cc9p9750val()		\
 		)
 
diff --git a/arch/arm/mach-ns9xxx/include/mach/module.h b/arch/arm/mach-ns9xxx/include/mach/module.h
index f851a6b7da6c..628e9752589b 100644
--- a/arch/arm/mach-ns9xxx/include/mach/module.h
+++ b/arch/arm/mach-ns9xxx/include/mach/module.h
@@ -18,7 +18,6 @@
 		)
 
 #define module_is_cc9c()	(0			\
-		|| machine_is_cc9c()			\
 		)
 
 #define module_is_cc9p9210()	(0			\
@@ -32,21 +31,17 @@
 		)
 
 #define module_is_cc9p9360()	(0			\
-		|| machine_is_a9m9360()			\
 		|| machine_is_cc9p9360dev()		\
 		|| machine_is_cc9p9360js()		\
-		|| machine_is_cc9p9360val()		\
 		)
 
 #define module_is_cc9p9750()	(0			\
 		|| machine_is_a9m9750()			\
-		|| machine_is_cc9p9750dev()		\
 		|| machine_is_cc9p9750js()		\
 		|| machine_is_cc9p9750val()		\
 		)
 
 #define module_is_ccw9c()	(0			\
-		|| machine_is_ccw9c()			\
 		)
 
 #define module_is_inc20otter()	(0			\
diff --git a/arch/arm/mach-ns9xxx/irq.c b/arch/arm/mach-ns9xxx/irq.c
index 389fa5c669de..37ab0a2b83ad 100644
--- a/arch/arm/mach-ns9xxx/irq.c
+++ b/arch/arm/mach-ns9xxx/irq.c
@@ -31,17 +31,11 @@ static void ns9xxx_mask_irq(struct irq_data *d)
 	__raw_writel(ic, SYS_IC(prio / 4));
 }
 
-static void ns9xxx_ack_irq(struct irq_data *d)
+static void ns9xxx_eoi_irq(struct irq_data *d)
 {
 	__raw_writel(0, SYS_ISRADDR);
 }
 
-static void ns9xxx_maskack_irq(struct irq_data *d)
-{
-	ns9xxx_mask_irq(d);
-	ns9xxx_ack_irq(d);
-}
-
 static void ns9xxx_unmask_irq(struct irq_data *d)
 {
 	/* XXX: better use cpp symbols */
@@ -52,56 +46,11 @@ static void ns9xxx_unmask_irq(struct irq_data *d)
 }
 
 static struct irq_chip ns9xxx_chip = {
-	.irq_ack	= ns9xxx_ack_irq,
+	.irq_eoi	= ns9xxx_eoi_irq,
 	.irq_mask	= ns9xxx_mask_irq,
-	.irq_mask_ack	= ns9xxx_maskack_irq,
 	.irq_unmask	= ns9xxx_unmask_irq,
 };
 
-#if 0
-#define handle_irq handle_level_irq
-#else
-static void handle_prio_irq(unsigned int irq, struct irq_desc *desc)
-{
-	struct irqaction *action;
-	irqreturn_t action_ret;
-
-	raw_spin_lock(&desc->lock);
-
-	BUG_ON(desc->status & IRQ_INPROGRESS);
-
-	desc->status &= ~(IRQ_REPLAY | IRQ_WAITING);
-	kstat_incr_irqs_this_cpu(irq, desc);
-
-	action = desc->action;
-	if (unlikely(!action || (desc->status & IRQ_DISABLED)))
-		goto out_mask;
-
-	desc->status |= IRQ_INPROGRESS;
-	raw_spin_unlock(&desc->lock);
-
-	action_ret = handle_IRQ_event(irq, action);
-
-	/* XXX: There is no direct way to access noirqdebug, so check
-	 * unconditionally for spurious irqs...
-	 * Maybe this function should go to kernel/irq/chip.c? */
-	note_interrupt(irq, desc, action_ret);
-
-	raw_spin_lock(&desc->lock);
-	desc->status &= ~IRQ_INPROGRESS;
-
-	if (desc->status & IRQ_DISABLED)
-out_mask:
-		desc->irq_data.chip->irq_mask(&desc->irq_data);
-
-	/* ack unconditionally to unmask lower prio irqs */
-	desc->irq_data.chip->irq_ack(&desc->irq_data);
-
-	raw_spin_unlock(&desc->lock);
-}
-#define handle_irq handle_prio_irq
-#endif
-
 void __init ns9xxx_init_irq(void)
 {
 	int i;
@@ -118,8 +67,8 @@ void __init ns9xxx_init_irq(void)
 		__raw_writel(prio2irq(i), SYS_IVA(i));
 
 	for (i = 0; i <= 31; ++i) {
-		set_irq_chip(i, &ns9xxx_chip);
-		set_irq_handler(i, handle_irq);
+		irq_set_chip_and_handler(i, &ns9xxx_chip, handle_fasteoi_irq);
 		set_irq_flags(i, IRQF_VALID);
+		irq_set_status_flags(i, IRQ_LEVEL);
 	}
 }
diff --git a/arch/arm/mach-nuc93x/irq.c b/arch/arm/mach-nuc93x/irq.c
index 1f8a05a22834..aa279f23e342 100644
--- a/arch/arm/mach-nuc93x/irq.c
+++ b/arch/arm/mach-nuc93x/irq.c
@@ -59,8 +59,8 @@ void __init nuc93x_init_irq(void)
 	__raw_writel(0xFFFFFFFE, REG_AIC_MDCR);
 
 	for (irqno = IRQ_WDT; irqno <= NR_IRQS; irqno++) {
-		set_irq_chip(irqno, &nuc93x_irq_chip);
-		set_irq_handler(irqno, handle_level_irq);
+		irq_set_chip_and_handler(irqno, &nuc93x_irq_chip,
+					 handle_level_irq);
 		set_irq_flags(irqno, IRQF_VALID);
 	}
 }
diff --git a/arch/arm/mach-omap1/ams-delta-fiq-handler.S b/arch/arm/mach-omap1/ams-delta-fiq-handler.S
index 927d5a181760..c1c5fb6a5b4c 100644
--- a/arch/arm/mach-omap1/ams-delta-fiq-handler.S
+++ b/arch/arm/mach-omap1/ams-delta-fiq-handler.S
@@ -79,7 +79,7 @@
 
 
 /*
- * Register useage
+ * Register usage
  * r8  - temporary
  * r9  - the driver buffer
  * r10 - temporary
diff --git a/arch/arm/mach-omap1/board-osk.c b/arch/arm/mach-omap1/board-osk.c
index 7c5e2112c776..e68dfde1918e 100644
--- a/arch/arm/mach-omap1/board-osk.c
+++ b/arch/arm/mach-omap1/board-osk.c
@@ -276,7 +276,7 @@ static void __init osk_init_cf(void)
 		return;
 	}
 	/* the CF I/O IRQ is really active-low */
-	set_irq_type(gpio_to_irq(62), IRQ_TYPE_EDGE_FALLING);
+	irq_set_irq_type(gpio_to_irq(62), IRQ_TYPE_EDGE_FALLING);
 }
 
 static void __init osk_init_irq(void)
@@ -482,7 +482,7 @@ static void __init osk_mistral_init(void)
 	omap_cfg_reg(P20_1610_GPIO4);	/* PENIRQ */
 	gpio_request(4, "ts_int");
 	gpio_direction_input(4);
-	set_irq_type(gpio_to_irq(4), IRQ_TYPE_EDGE_FALLING);
+	irq_set_irq_type(gpio_to_irq(4), IRQ_TYPE_EDGE_FALLING);
 
 	spi_register_board_info(mistral_boardinfo,
 			ARRAY_SIZE(mistral_boardinfo));
@@ -500,7 +500,7 @@ static void __init osk_mistral_init(void)
 		int irq = gpio_to_irq(OMAP_MPUIO(2));
 
 		gpio_direction_input(OMAP_MPUIO(2));
-		set_irq_type(irq, IRQ_TYPE_EDGE_RISING);
+		irq_set_irq_type(irq, IRQ_TYPE_EDGE_RISING);
 #ifdef	CONFIG_PM
 		/* share the IRQ in case someone wants to use the
 		 * button for more than wakeup from system sleep.
diff --git a/arch/arm/mach-omap1/board-palmz71.c b/arch/arm/mach-omap1/board-palmz71.c
index d7bbbe721a75..45f01d2c3a7a 100644
--- a/arch/arm/mach-omap1/board-palmz71.c
+++ b/arch/arm/mach-omap1/board-palmz71.c
@@ -256,12 +256,12 @@ palmz71_powercable(int irq, void *dev_id)
 {
 	if (gpio_get_value(PALMZ71_USBDETECT_GPIO)) {
 		printk(KERN_INFO "PM: Power cable connected\n");
-		set_irq_type(gpio_to_irq(PALMZ71_USBDETECT_GPIO),
-				IRQ_TYPE_EDGE_FALLING);
+		irq_set_irq_type(gpio_to_irq(PALMZ71_USBDETECT_GPIO),
+				 IRQ_TYPE_EDGE_FALLING);
 	} else {
 		printk(KERN_INFO "PM: Power cable disconnected\n");
-		set_irq_type(gpio_to_irq(PALMZ71_USBDETECT_GPIO),
-				IRQ_TYPE_EDGE_RISING);
+		irq_set_irq_type(gpio_to_irq(PALMZ71_USBDETECT_GPIO),
+				 IRQ_TYPE_EDGE_RISING);
 	}
 	return IRQ_HANDLED;
 }
diff --git a/arch/arm/mach-omap1/board-sx1.c b/arch/arm/mach-omap1/board-sx1.c
index d41fe2d0616a..0ad781db4e66 100644
--- a/arch/arm/mach-omap1/board-sx1.c
+++ b/arch/arm/mach-omap1/board-sx1.c
@@ -399,7 +399,7 @@ static void __init omap_sx1_init(void)
 	sx1_mmc_init();
 
 	/* turn on USB power */
-	/* sx1_setusbpower(1); cant do it here because i2c is not ready */
+	/* sx1_setusbpower(1); can't do it here because i2c is not ready */
 	gpio_request(1, "A_IRDA_OFF");
 	gpio_request(11, "A_SWITCH");
 	gpio_request(15, "A_USB_ON");
diff --git a/arch/arm/mach-omap1/board-voiceblue.c b/arch/arm/mach-omap1/board-voiceblue.c
index bdc0ac8dc21f..65d24204937a 100644
--- a/arch/arm/mach-omap1/board-voiceblue.c
+++ b/arch/arm/mach-omap1/board-voiceblue.c
@@ -279,10 +279,10 @@ static void __init voiceblue_init(void)
 	gpio_request(13, "16C554 irq");
 	gpio_request(14, "16C554 irq");
 	gpio_request(15, "16C554 irq");
-	set_irq_type(gpio_to_irq(12), IRQ_TYPE_EDGE_RISING);
-	set_irq_type(gpio_to_irq(13), IRQ_TYPE_EDGE_RISING);
-	set_irq_type(gpio_to_irq(14), IRQ_TYPE_EDGE_RISING);
-	set_irq_type(gpio_to_irq(15), IRQ_TYPE_EDGE_RISING);
+	irq_set_irq_type(gpio_to_irq(12), IRQ_TYPE_EDGE_RISING);
+	irq_set_irq_type(gpio_to_irq(13), IRQ_TYPE_EDGE_RISING);
+	irq_set_irq_type(gpio_to_irq(14), IRQ_TYPE_EDGE_RISING);
+	irq_set_irq_type(gpio_to_irq(15), IRQ_TYPE_EDGE_RISING);
 
 	platform_add_devices(voiceblue_devices, ARRAY_SIZE(voiceblue_devices));
 	omap_board_config = voiceblue_config;
diff --git a/arch/arm/mach-omap1/devices.c b/arch/arm/mach-omap1/devices.c
index b0f4c231595f..36f26c3fa25e 100644
--- a/arch/arm/mach-omap1/devices.c
+++ b/arch/arm/mach-omap1/devices.c
@@ -281,7 +281,7 @@ static inline void omap_init_audio(void) {}
  * Claiming GPIOs, and setting their direction and initial values, is the
  * responsibility of the device drivers.  So is responding to probe().
  *
- * Board-specific knowlege like creating devices or pin setup is to be
+ * Board-specific knowledge like creating devices or pin setup is to be
  * kept out of drivers as much as possible.  In particular, pin setup
  * may be handled by the boot loader, and drivers should expect it will
  * normally have been done by the time they're probed.
diff --git a/arch/arm/mach-omap1/fpga.c b/arch/arm/mach-omap1/fpga.c
index 0ace7998aaa5..cddbf8b089ce 100644
--- a/arch/arm/mach-omap1/fpga.c
+++ b/arch/arm/mach-omap1/fpga.c
@@ -156,17 +156,17 @@ void omap1510_fpga_init_irq(void)
 			 * The touchscreen interrupt is level-sensitive, so
 			 * we'll use the regular mask_ack routine for it.
 			 */
-			set_irq_chip(i, &omap_fpga_irq_ack);
+			irq_set_chip(i, &omap_fpga_irq_ack);
 		}
 		else {
 			/*
 			 * All FPGA interrupts except the touchscreen are
 			 * edge-sensitive, so we won't mask them.
 			 */
-			set_irq_chip(i, &omap_fpga_irq);
+			irq_set_chip(i, &omap_fpga_irq);
 		}
 
-		set_irq_handler(i, handle_edge_irq);
+		irq_set_handler(i, handle_edge_irq);
 		set_irq_flags(i, IRQF_VALID);
 	}
 
@@ -183,6 +183,6 @@ void omap1510_fpga_init_irq(void)
 		return;
 	}
 	gpio_direction_input(13);
-	set_irq_type(gpio_to_irq(13), IRQ_TYPE_EDGE_RISING);
-	set_irq_chained_handler(OMAP1510_INT_FPGA, innovator_fpga_IRQ_demux);
+	irq_set_irq_type(gpio_to_irq(13), IRQ_TYPE_EDGE_RISING);
+	irq_set_chained_handler(OMAP1510_INT_FPGA, innovator_fpga_IRQ_demux);
 }
diff --git a/arch/arm/mach-omap1/include/mach/ams-delta-fiq.h b/arch/arm/mach-omap1/include/mach/ams-delta-fiq.h
index 7a2df29400ca..23eed0035ed8 100644
--- a/arch/arm/mach-omap1/include/mach/ams-delta-fiq.h
+++ b/arch/arm/mach-omap1/include/mach/ams-delta-fiq.h
@@ -31,7 +31,7 @@
 #endif
 
 /*
- * These are the offsets from the begining of the fiq_buffer. They are put here
+ * These are the offsets from the beginning of the fiq_buffer. They are put here
  * since the buffer and header need to be accessed by drivers servicing devices
  * which generate GPIO interrupts - e.g. keyboard, modem, hook switch.
  */
diff --git a/arch/arm/mach-omap1/irq.c b/arch/arm/mach-omap1/irq.c
index 731dd33bff51..5d3da7a63af3 100644
--- a/arch/arm/mach-omap1/irq.c
+++ b/arch/arm/mach-omap1/irq.c
@@ -230,8 +230,8 @@ void __init omap_init_irq(void)
 			irq_trigger = irq_banks[i].trigger_map >> IRQ_BIT(j);
 			omap_irq_set_cfg(j, 0, 0, irq_trigger);
 
-			set_irq_chip(j, &omap_irq_chip);
-			set_irq_handler(j, handle_level_irq);
+			irq_set_chip_and_handler(j, &omap_irq_chip,
+						 handle_level_irq);
 			set_irq_flags(j, IRQF_VALID);
 		}
 	}
diff --git a/arch/arm/mach-omap2/board-igep0020.c b/arch/arm/mach-omap2/board-igep0020.c
index 5f8a2fd06337..34cf982b9679 100644
--- a/arch/arm/mach-omap2/board-igep0020.c
+++ b/arch/arm/mach-omap2/board-igep0020.c
@@ -696,7 +696,7 @@ static void __init igep2_init(void)
 	igep2_init_smsc911x();
 
 	/*
-	 * WLAN-BT combo module from MuRata wich has a Marvell WLAN
+	 * WLAN-BT combo module from MuRata which has a Marvell WLAN
 	 * (88W8686) + CSR Bluetooth chipset. Uses SDIO interface.
 	 */
 	igep2_wlan_bt_init();
diff --git a/arch/arm/mach-omap2/board-igep0030.c b/arch/arm/mach-omap2/board-igep0030.c
index b10db0e6ee62..2cf86c3cb1a3 100644
--- a/arch/arm/mach-omap2/board-igep0030.c
+++ b/arch/arm/mach-omap2/board-igep0030.c
@@ -440,7 +440,7 @@ static void __init igep3_init(void)
 	igep3_leds_init();
 
 	/*
-	 * WLAN-BT combo module from MuRata wich has a Marvell WLAN
+	 * WLAN-BT combo module from MuRata which has a Marvell WLAN
 	 * (88W8686) + CSR Bluetooth chipset. Uses SDIO interface.
 	 */
 	igep3_wifi_bt_init();
diff --git a/arch/arm/mach-omap2/board-omap4panda.c b/arch/arm/mach-omap2/board-omap4panda.c
index c936c6d7ded0..f3a7b1011914 100644
--- a/arch/arm/mach-omap2/board-omap4panda.c
+++ b/arch/arm/mach-omap2/board-omap4panda.c
@@ -285,19 +285,6 @@ static int __init omap4_twl6030_hsmmc_init(struct omap2_hsmmc_info *controllers)
 	return 0;
 }
 
-static struct regulator_init_data omap4_panda_vaux1 = {
-	.constraints = {
-		.min_uV			= 1000000,
-		.max_uV			= 3000000,
-		.apply_uV		= true,
-		.valid_modes_mask	= REGULATOR_MODE_NORMAL
-					| REGULATOR_MODE_STANDBY,
-		.valid_ops_mask	 = REGULATOR_CHANGE_VOLTAGE
-					| REGULATOR_CHANGE_MODE
-					| REGULATOR_CHANGE_STATUS,
-	},
-};
-
 static struct regulator_init_data omap4_panda_vaux2 = {
 	.constraints = {
 		.min_uV			= 1200000,
@@ -353,19 +340,6 @@ static struct regulator_init_data omap4_panda_vpp = {
 	},
 };
 
-static struct regulator_init_data omap4_panda_vusim = {
-	.constraints = {
-		.min_uV			= 1200000,
-		.max_uV			= 2900000,
-		.apply_uV		= true,
-		.valid_modes_mask	= REGULATOR_MODE_NORMAL
-					| REGULATOR_MODE_STANDBY,
-		.valid_ops_mask	 = REGULATOR_CHANGE_VOLTAGE
-					| REGULATOR_CHANGE_MODE
-					| REGULATOR_CHANGE_STATUS,
-	},
-};
-
 static struct regulator_init_data omap4_panda_vana = {
 	.constraints = {
 		.min_uV			= 2100000,
@@ -424,12 +398,10 @@ static struct twl4030_platform_data omap4_panda_twldata = {
 	/* Regulators */
 	.vmmc		= &omap4_panda_vmmc,
 	.vpp		= &omap4_panda_vpp,
-	.vusim		= &omap4_panda_vusim,
 	.vana		= &omap4_panda_vana,
 	.vcxio		= &omap4_panda_vcxio,
 	.vdac		= &omap4_panda_vdac,
 	.vusb		= &omap4_panda_vusb,
-	.vaux1		= &omap4_panda_vaux1,
 	.vaux2		= &omap4_panda_vaux2,
 	.vaux3		= &omap4_panda_vaux3,
 	.clk32kg	= &omap4_panda_clk32kg,
diff --git a/arch/arm/mach-omap2/clockdomain.c b/arch/arm/mach-omap2/clockdomain.c
index ab878545bd9b..6cb6c03293df 100644
--- a/arch/arm/mach-omap2/clockdomain.c
+++ b/arch/arm/mach-omap2/clockdomain.c
@@ -258,7 +258,7 @@ static void _resolve_clkdm_deps(struct clockdomain *clkdm,
  * clkdm_init - set up the clockdomain layer
  * @clkdms: optional pointer to an array of clockdomains to register
  * @init_autodeps: optional pointer to an array of autodeps to register
- * @custom_funcs: func pointers for arch specfic implementations
+ * @custom_funcs: func pointers for arch specific implementations
  *
  * Set up internal state.  If a pointer to an array of clockdomains
  * @clkdms was supplied, loop through the list of clockdomains,
diff --git a/arch/arm/mach-omap2/clockdomain.h b/arch/arm/mach-omap2/clockdomain.h
index 85b3dce65640..5823584d9cd7 100644
--- a/arch/arm/mach-omap2/clockdomain.h
+++ b/arch/arm/mach-omap2/clockdomain.h
@@ -125,7 +125,7 @@ struct clockdomain {
 };
 
 /**
- * struct clkdm_ops - Arch specfic function implementations
+ * struct clkdm_ops - Arch specific function implementations
  * @clkdm_add_wkdep: Add a wakeup dependency between clk domains
  * @clkdm_del_wkdep: Delete a wakeup dependency between clk domains
  * @clkdm_read_wkdep: Read wakeup dependency state between clk domains
diff --git a/arch/arm/mach-omap2/cpuidle34xx.c b/arch/arm/mach-omap2/cpuidle34xx.c
index a44c52303405..1c240eff3918 100644
--- a/arch/arm/mach-omap2/cpuidle34xx.c
+++ b/arch/arm/mach-omap2/cpuidle34xx.c
@@ -297,8 +297,8 @@ DEFINE_PER_CPU(struct cpuidle_device, omap3_idle_dev);
 
 /**
  * omap3_cpuidle_update_states() - Update the cpuidle states
- * @mpu_deepest_state:	Enable states upto and including this for mpu domain
- * @core_deepest_state:	Enable states upto and including this for core domain
+ * @mpu_deepest_state:	Enable states up to and including this for mpu domain
+ * @core_deepest_state:	Enable states up to and including this for core domain
  *
  * This goes through the list of states available and enables and disables the
  * validity of C states based on deepest state that can be achieved for the
diff --git a/arch/arm/mach-omap2/devices.c b/arch/arm/mach-omap2/devices.c
index e97851492847..7b8558564591 100644
--- a/arch/arm/mach-omap2/devices.c
+++ b/arch/arm/mach-omap2/devices.c
@@ -66,7 +66,7 @@ static int __init omap3_l3_init(void)
 
 	WARN(IS_ERR(od), "could not build omap_device for %s\n", oh_name);
 
-	return PTR_ERR(od);
+	return IS_ERR(od) ? PTR_ERR(od) : 0;
 }
 postcore_initcall(omap3_l3_init);
 
@@ -253,7 +253,7 @@ int __init omap4_keyboard_init(struct omap4_keypad_platform_data
 			ARRAY_SIZE(omap_keyboard_latency), 0);
 
 	if (IS_ERR(od)) {
-		WARN(1, "Cant build omap_device for %s:%s.\n",
+		WARN(1, "Can't build omap_device for %s:%s.\n",
 						name, oh->name);
 		return PTR_ERR(od);
 	}
@@ -373,7 +373,7 @@ static int omap_mcspi_init(struct omap_hwmod *oh, void *unused)
 	od = omap_device_build(name, spi_num, oh, pdata,
 				sizeof(*pdata),	omap_mcspi_latency,
 				ARRAY_SIZE(omap_mcspi_latency), 0);
-	WARN(IS_ERR(od), "Cant build omap_device for %s:%s\n",
+	WARN(IS_ERR(od), "Can't build omap_device for %s:%s\n",
 				name, oh->name);
 	kfree(pdata);
 	return 0;
@@ -725,7 +725,7 @@ static int __init omap_init_wdt(void)
 	od = omap_device_build(dev_name, id, oh, NULL, 0,
 				omap_wdt_latency,
 				ARRAY_SIZE(omap_wdt_latency), 0);
-	WARN(IS_ERR(od), "Cant build omap_device for %s:%s.\n",
+	WARN(IS_ERR(od), "Can't build omap_device for %s:%s.\n",
 				dev_name, oh->name);
 	return 0;
 }
diff --git a/arch/arm/mach-omap2/dma.c b/arch/arm/mach-omap2/dma.c
index 34922b2d2e3f..c9ff0e79703d 100644
--- a/arch/arm/mach-omap2/dma.c
+++ b/arch/arm/mach-omap2/dma.c
@@ -262,7 +262,7 @@ static int __init omap2_system_dma_init_dev(struct omap_hwmod *oh, void *unused)
 			omap2_dma_latency, ARRAY_SIZE(omap2_dma_latency), 0);
 	kfree(p);
 	if (IS_ERR(od)) {
-		pr_err("%s: Cant build omap_device for %s:%s.\n",
+		pr_err("%s: Can't build omap_device for %s:%s.\n",
 			__func__, name, oh->name);
 		return PTR_ERR(od);
 	}
diff --git a/arch/arm/mach-omap2/gpio.c b/arch/arm/mach-omap2/gpio.c
index 413de18c1d2b..9529842ae054 100644
--- a/arch/arm/mach-omap2/gpio.c
+++ b/arch/arm/mach-omap2/gpio.c
@@ -82,7 +82,7 @@ static int omap2_gpio_dev_init(struct omap_hwmod *oh, void *unused)
 	kfree(pdata);
 
 	if (IS_ERR(od)) {
-		WARN(1, "Cant build omap_device for %s:%s.\n",
+		WARN(1, "Can't build omap_device for %s:%s.\n",
 					name, oh->name);
 		return PTR_ERR(od);
 	}
diff --git a/arch/arm/mach-omap2/gpmc.c b/arch/arm/mach-omap2/gpmc.c
index 674174365f78..130034bf01d5 100644
--- a/arch/arm/mach-omap2/gpmc.c
+++ b/arch/arm/mach-omap2/gpmc.c
@@ -693,6 +693,7 @@ static int __init gpmc_init(void)
 {
 	u32 l, irq;
 	int cs, ret = -EINVAL;
+	int gpmc_irq;
 	char *ck = NULL;
 
 	if (cpu_is_omap24xx()) {
@@ -701,12 +702,15 @@ static int __init gpmc_init(void)
 			l = OMAP2420_GPMC_BASE;
 		else
 			l = OMAP34XX_GPMC_BASE;
+		gpmc_irq = INT_34XX_GPMC_IRQ;
 	} else if (cpu_is_omap34xx()) {
 		ck = "gpmc_fck";
 		l = OMAP34XX_GPMC_BASE;
+		gpmc_irq = INT_34XX_GPMC_IRQ;
 	} else if (cpu_is_omap44xx()) {
 		ck = "gpmc_ck";
 		l = OMAP44XX_GPMC_BASE;
+		gpmc_irq = OMAP44XX_IRQ_GPMC;
 	}
 
 	if (WARN_ON(!ck))
@@ -739,16 +743,17 @@ static int __init gpmc_init(void)
 	/* initalize the irq_chained */
 	irq = OMAP_GPMC_IRQ_BASE;
 	for (cs = 0; cs < GPMC_CS_NUM; cs++) {
-		set_irq_handler(irq, handle_simple_irq);
+		irq_set_chip_and_handler(irq, &dummy_irq_chip,
+						handle_simple_irq);
 		set_irq_flags(irq, IRQF_VALID);
 		irq++;
 	}
 
-	ret = request_irq(INT_34XX_GPMC_IRQ,
+	ret = request_irq(gpmc_irq,
 			gpmc_handle_irq, IRQF_SHARED, "gpmc", gpmc_base);
 	if (ret)
 		pr_err("gpmc: irq-%d could not claim: err %d\n",
-						INT_34XX_GPMC_IRQ, ret);
+						gpmc_irq, ret);
 	return ret;
 }
 postcore_initcall(gpmc_init);
@@ -757,8 +762,6 @@ static irqreturn_t gpmc_handle_irq(int irq, void *dev)
 {
 	u8 cs;
 
-	if (irq != INT_34XX_GPMC_IRQ)
-		return IRQ_HANDLED;
 	/* check cs to invoke the irq */
 	cs = ((gpmc_read_reg(GPMC_PREFETCH_CONFIG1)) >> CS_NUM_SHIFT) & 0x7;
 	if (OMAP_GPMC_IRQ_BASE+cs <= OMAP_GPMC_IRQ_END)
diff --git a/arch/arm/mach-omap2/hsmmc.c b/arch/arm/mach-omap2/hsmmc.c
index 137e1a5f3d85..b2f30bed5a20 100644
--- a/arch/arm/mach-omap2/hsmmc.c
+++ b/arch/arm/mach-omap2/hsmmc.c
@@ -465,7 +465,7 @@ void __init omap_init_hsmmc(struct omap2_hsmmc_info *hsmmcinfo, int ctrl_nr)
 	od = omap_device_build(name, ctrl_nr - 1, oh, mmc_data,
 		sizeof(struct omap_mmc_platform_data), ohl, ohl_cnt, false);
 	if (IS_ERR(od)) {
-		WARN(1, "Cant build omap_device for %s:%s.\n", name, oh->name);
+		WARN(1, "Can't build omap_device for %s:%s.\n", name, oh->name);
 		kfree(mmc_data->slots[0].name);
 		goto done;
 	}
diff --git a/arch/arm/mach-omap2/irq.c b/arch/arm/mach-omap2/irq.c
index bc524b94fd59..237e4530abf2 100644
--- a/arch/arm/mach-omap2/irq.c
+++ b/arch/arm/mach-omap2/irq.c
@@ -223,8 +223,7 @@ void __init omap_init_irq(void)
 	       nr_of_irqs, nr_banks, nr_banks > 1 ? "s" : "");
 
 	for (i = 0; i < nr_of_irqs; i++) {
-		set_irq_chip(i, &omap_irq_chip);
-		set_irq_handler(i, handle_level_irq);
+		irq_set_chip_and_handler(i, &omap_irq_chip, handle_level_irq);
 		set_irq_flags(i, IRQF_VALID);
 	}
 }
diff --git a/arch/arm/mach-omap2/mcbsp.c b/arch/arm/mach-omap2/mcbsp.c
index 565b9064a328..4a6ef6ab8458 100644
--- a/arch/arm/mach-omap2/mcbsp.c
+++ b/arch/arm/mach-omap2/mcbsp.c
@@ -149,7 +149,7 @@ static int omap_init_mcbsp(struct omap_hwmod *oh, void *unused)
 				ARRAY_SIZE(omap2_mcbsp_latency), false);
 	kfree(pdata);
 	if (IS_ERR(od))  {
-		pr_err("%s: Cant build omap_device for %s:%s.\n", __func__,
+		pr_err("%s: Can't build omap_device for %s:%s.\n", __func__,
 					name, oh->name);
 		return PTR_ERR(od);
 	}
diff --git a/arch/arm/mach-omap2/mux.c b/arch/arm/mach-omap2/mux.c
index bb043cbb3886..a4ab1e364313 100644
--- a/arch/arm/mach-omap2/mux.c
+++ b/arch/arm/mach-omap2/mux.c
@@ -518,7 +518,7 @@ static int omap_mux_dbg_board_show(struct seq_file *s, void *unused)
 			seq_printf(s, "/* %s */\n", m->muxnames[mode]);
 
 		/*
-		 * XXX: Might be revisited to support differences accross
+		 * XXX: Might be revisited to support differences across
 		 * same OMAP generation.
 		 */
 		seq_printf(s, "OMAP%d_MUX(%s, ", omap_gen, m0_def);
diff --git a/arch/arm/mach-omap2/mux2430.h b/arch/arm/mach-omap2/mux2430.h
index adbea0d03e08..9fd93149ebd9 100644
--- a/arch/arm/mach-omap2/mux2430.h
+++ b/arch/arm/mach-omap2/mux2430.h
@@ -22,7 +22,7 @@
  * absolute addresses.  The name in the macro is the mode-0 name of
  * the pin.  NOTE: These registers are 8-bits wide.
  *
- * Note that these defines use SDMMC instead of MMC for compability
+ * Note that these defines use SDMMC instead of MMC for compatibility
  * with signal names used in 3630.
  */
 #define OMAP2430_CONTROL_PADCONF_GPMC_CLK_OFFSET		0x000
diff --git a/arch/arm/mach-omap2/omap_hwmod_2430_data.c b/arch/arm/mach-omap2/omap_hwmod_2430_data.c
index a860fb5024c2..e6e3810db77f 100644
--- a/arch/arm/mach-omap2/omap_hwmod_2430_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_2430_data.c
@@ -1559,7 +1559,7 @@ static struct omap_hwmod omap2430_i2c1_hwmod = {
 			 * I2CHS IP's do not follow the usual pattern.
 			 * prcm_reg_id alone cannot be used to program
 			 * the iclk and fclk. Needs to be handled using
-			 * additonal flags when clk handling is moved
+			 * additional flags when clk handling is moved
 			 * to hwmod framework.
 			 */
 			.module_offs = CORE_MOD,
diff --git a/arch/arm/mach-omap2/omap_l3_smx.c b/arch/arm/mach-omap2/omap_l3_smx.c
index 265bff3acb9e..5f2da7565b68 100644
--- a/arch/arm/mach-omap2/omap_l3_smx.c
+++ b/arch/arm/mach-omap2/omap_l3_smx.c
@@ -226,7 +226,6 @@ static int __init omap3_l3_probe(struct platform_device *pdev)
 	struct omap3_l3         *l3;
 	struct resource         *res;
 	int                     ret;
-	int                     irq;
 
 	l3 = kzalloc(sizeof(*l3), GFP_KERNEL);
 	if (!l3) {
@@ -249,18 +248,17 @@ static int __init omap3_l3_probe(struct platform_device *pdev)
 		goto err2;
 	}
 
-	irq = platform_get_irq(pdev, 0);
-	ret = request_irq(irq, omap3_l3_app_irq,
+	l3->debug_irq = platform_get_irq(pdev, 0);
+	ret = request_irq(l3->debug_irq, omap3_l3_app_irq,
 		IRQF_DISABLED | IRQF_TRIGGER_RISING,
 		"l3-debug-irq", l3);
 	if (ret) {
 		dev_err(&pdev->dev, "couldn't request debug irq\n");
 		goto err3;
 	}
-	l3->debug_irq = irq;
 
-	irq = platform_get_irq(pdev, 1);
-	ret = request_irq(irq, omap3_l3_app_irq,
+	l3->app_irq = platform_get_irq(pdev, 1);
+	ret = request_irq(l3->app_irq, omap3_l3_app_irq,
 		IRQF_DISABLED | IRQF_TRIGGER_RISING,
 		"l3-app-irq", l3);
 
@@ -269,7 +267,6 @@ static int __init omap3_l3_probe(struct platform_device *pdev)
 		goto err4;
 	}
 
-	l3->app_irq = irq;
 	goto err0;
 
 err4:
diff --git a/arch/arm/mach-omap2/omap_phy_internal.c b/arch/arm/mach-omap2/omap_phy_internal.c
index e2e605fe9138..05f6abc96b0d 100644
--- a/arch/arm/mach-omap2/omap_phy_internal.c
+++ b/arch/arm/mach-omap2/omap_phy_internal.c
@@ -112,12 +112,12 @@ int omap4430_phy_power(struct device *dev, int ID, int on)
 		else
 			/*
 			 * Enable VBUS Valid, AValid and IDDIG
-			 * high impedence
+			 * high impedance
 			 */
 			__raw_writel(IDDIG | AVALID | VBUSVALID,
 						ctrl_base + USBOTGHS_CONTROL);
 	} else {
-		/* Enable session END and IDIG to high impedence. */
+		/* Enable session END and IDIG to high impedance. */
 		__raw_writel(SESSEND | IDDIG, ctrl_base +
 					USBOTGHS_CONTROL);
 	}
diff --git a/arch/arm/mach-omap2/omap_twl.c b/arch/arm/mach-omap2/omap_twl.c
index 0a8e74e3e811..07d6140baa9d 100644
--- a/arch/arm/mach-omap2/omap_twl.c
+++ b/arch/arm/mach-omap2/omap_twl.c
@@ -308,7 +308,7 @@ int __init omap3_twl_init(void)
  * Strategy Software Scaling Mode (ENABLE_VMODE=0), for setting the voltages,
  * in those scenarios this bit is to be cleared (enable = false).
  *
- * Returns 0 on sucess, error is returned if I2C read/write fails.
+ * Returns 0 on success, error is returned if I2C read/write fails.
  */
 int __init omap3_twl_set_sr_bit(bool enable)
 {
diff --git a/arch/arm/mach-omap2/powerdomain.c b/arch/arm/mach-omap2/powerdomain.c
index 49c6513e90d8..9af08473bf10 100644
--- a/arch/arm/mach-omap2/powerdomain.c
+++ b/arch/arm/mach-omap2/powerdomain.c
@@ -196,7 +196,7 @@ static int _pwrdm_post_transition_cb(struct powerdomain *pwrdm, void *unused)
 /**
  * pwrdm_init - set up the powerdomain layer
  * @pwrdm_list: array of struct powerdomain pointers to register
- * @custom_funcs: func pointers for arch specfic implementations
+ * @custom_funcs: func pointers for arch specific implementations
  *
  * Loop through the array of powerdomains @pwrdm_list, registering all
  * that are available on the current CPU. If pwrdm_list is supplied
diff --git a/arch/arm/mach-omap2/powerdomain.h b/arch/arm/mach-omap2/powerdomain.h
index 027f40bd235d..d23d979b9c34 100644
--- a/arch/arm/mach-omap2/powerdomain.h
+++ b/arch/arm/mach-omap2/powerdomain.h
@@ -121,7 +121,7 @@ struct powerdomain {
 };
 
 /**
- * struct pwrdm_ops - Arch specfic function implementations
+ * struct pwrdm_ops - Arch specific function implementations
  * @pwrdm_set_next_pwrst: Set the target power state for a pd
  * @pwrdm_read_next_pwrst: Read the target power state set for a pd
  * @pwrdm_read_pwrst: Read the current power state of a pd
diff --git a/arch/arm/mach-omap2/powerdomains3xxx_data.c b/arch/arm/mach-omap2/powerdomains3xxx_data.c
index 9c9c113788b9..469a920a74dc 100644
--- a/arch/arm/mach-omap2/powerdomains3xxx_data.c
+++ b/arch/arm/mach-omap2/powerdomains3xxx_data.c
@@ -72,7 +72,7 @@ static struct powerdomain mpu_3xxx_pwrdm = {
 
 /*
  * The USBTLL Save-and-Restore mechanism is broken on
- * 3430s upto ES3.0 and 3630ES1.0. Hence this feature
+ * 3430s up to ES3.0 and 3630ES1.0. Hence this feature
  * needs to be disabled on these chips.
  * Refer: 3430 errata ID i459 and 3630 errata ID i579
  *
diff --git a/arch/arm/mach-omap2/smartreflex.c b/arch/arm/mach-omap2/smartreflex.c
index 8f674c9442bf..13e24f913dd4 100644
--- a/arch/arm/mach-omap2/smartreflex.c
+++ b/arch/arm/mach-omap2/smartreflex.c
@@ -247,7 +247,7 @@ static void sr_stop_vddautocomp(struct omap_sr *sr)
  * driver register and sr device intializtion API's. Only one call
  * will ultimately succeed.
  *
- * Currenly this function registers interrrupt handler for a particular SR
+ * Currently this function registers interrrupt handler for a particular SR
  * if smartreflex class driver is already registered and has
  * requested for interrupts and the SR interrupt line in present.
  */
diff --git a/arch/arm/mach-omap2/voltage.c b/arch/arm/mach-omap2/voltage.c
index c6facf7becf8..6fb520999b6e 100644
--- a/arch/arm/mach-omap2/voltage.c
+++ b/arch/arm/mach-omap2/voltage.c
@@ -851,7 +851,7 @@ int omap_voltage_scale_vdd(struct voltagedomain *voltdm,
  * @voltdm:	pointer to the VDD whose voltage is to be reset.
  *
  * This API finds out the correct voltage the voltage domain is supposed
- * to be at and resets the voltage to that level. Should be used expecially
+ * to be at and resets the voltage to that level. Should be used especially
  * while disabling any voltage compensation modules.
  */
 void omap_voltage_reset(struct voltagedomain *voltdm)
@@ -912,7 +912,7 @@ void omap_voltage_get_volttable(struct voltagedomain *voltdm,
  * This API searches only through the non-compensated voltages int the
  * voltage table.
  * Returns pointer to the voltage table entry corresponding to volt on
- * sucess. Returns -ENODATA if no voltage table exisits for the passed voltage
+ * success. Returns -ENODATA if no voltage table exisits for the passed voltage
  * domain or if there is no matching entry.
  */
 struct omap_volt_data *omap_voltage_get_voltdata(struct voltagedomain *voltdm,
diff --git a/arch/arm/mach-orion5x/addr-map.c b/arch/arm/mach-orion5x/addr-map.c
index 1a5d6a0e2602..5ceafdccc456 100644
--- a/arch/arm/mach-orion5x/addr-map.c
+++ b/arch/arm/mach-orion5x/addr-map.c
@@ -19,7 +19,7 @@
 #include "common.h"
 
 /*
- * The Orion has fully programable address map. There's a separate address
+ * The Orion has fully programmable address map. There's a separate address
  * map for each of the device _master_ interfaces, e.g. CPU, PCI, PCIe, USB,
  * Gigabit Ethernet, DMA/XOR engines, etc. Each interface has its own
  * address decode windows that allow it to access any of the Orion resources.
diff --git a/arch/arm/mach-orion5x/db88f5281-setup.c b/arch/arm/mach-orion5x/db88f5281-setup.c
index c10a11715376..b7d4591214e0 100644
--- a/arch/arm/mach-orion5x/db88f5281-setup.c
+++ b/arch/arm/mach-orion5x/db88f5281-setup.c
@@ -213,7 +213,7 @@ void __init db88f5281_pci_preinit(void)
 	pin = DB88F5281_PCI_SLOT0_IRQ_PIN;
 	if (gpio_request(pin, "PCI Int1") == 0) {
 		if (gpio_direction_input(pin) == 0) {
-			set_irq_type(gpio_to_irq(pin), IRQ_TYPE_LEVEL_LOW);
+			irq_set_irq_type(gpio_to_irq(pin), IRQ_TYPE_LEVEL_LOW);
 		} else {
 			printk(KERN_ERR "db88f5281_pci_preinit faield to "
 					"set_irq_type pin %d\n", pin);
@@ -226,7 +226,7 @@ void __init db88f5281_pci_preinit(void)
 	pin = DB88F5281_PCI_SLOT1_SLOT2_IRQ_PIN;
 	if (gpio_request(pin, "PCI Int2") == 0) {
 		if (gpio_direction_input(pin) == 0) {
-			set_irq_type(gpio_to_irq(pin), IRQ_TYPE_LEVEL_LOW);
+			irq_set_irq_type(gpio_to_irq(pin), IRQ_TYPE_LEVEL_LOW);
 		} else {
 			printk(KERN_ERR "db88f5281_pci_preinit faield "
 					"to set_irq_type pin %d\n", pin);
diff --git a/arch/arm/mach-orion5x/irq.c b/arch/arm/mach-orion5x/irq.c
index ed85891f8699..43cf8bc9767b 100644
--- a/arch/arm/mach-orion5x/irq.c
+++ b/arch/arm/mach-orion5x/irq.c
@@ -34,8 +34,8 @@ void __init orion5x_init_irq(void)
 	 * Initialize gpiolib for GPIOs 0-31.
 	 */
 	orion_gpio_init(0, 32, GPIO_VIRT_BASE, 0, IRQ_ORION5X_GPIO_START);
-	set_irq_chained_handler(IRQ_ORION5X_GPIO_0_7, gpio_irq_handler);
-	set_irq_chained_handler(IRQ_ORION5X_GPIO_8_15, gpio_irq_handler);
-	set_irq_chained_handler(IRQ_ORION5X_GPIO_16_23, gpio_irq_handler);
-	set_irq_chained_handler(IRQ_ORION5X_GPIO_24_31, gpio_irq_handler);
+	irq_set_chained_handler(IRQ_ORION5X_GPIO_0_7, gpio_irq_handler);
+	irq_set_chained_handler(IRQ_ORION5X_GPIO_8_15, gpio_irq_handler);
+	irq_set_chained_handler(IRQ_ORION5X_GPIO_16_23, gpio_irq_handler);
+	irq_set_chained_handler(IRQ_ORION5X_GPIO_24_31, gpio_irq_handler);
 }
diff --git a/arch/arm/mach-orion5x/net2big-setup.c b/arch/arm/mach-orion5x/net2big-setup.c
index 429ecafe9fdd..a5930f83958b 100644
--- a/arch/arm/mach-orion5x/net2big-setup.c
+++ b/arch/arm/mach-orion5x/net2big-setup.c
@@ -190,7 +190,7 @@ err_free_1:
  * The power front LEDs (blue and red) and SATA red LEDs are controlled via a
  * single GPIO line and are compatible with the leds-gpio driver.
  *
- * The SATA blue LEDs have some hardware blink capabilities which are detailled
+ * The SATA blue LEDs have some hardware blink capabilities which are detailed
  * in the following array:
  *
  * SATAx blue LED | SATAx activity | LED state
diff --git a/arch/arm/mach-orion5x/rd88f5182-setup.c b/arch/arm/mach-orion5x/rd88f5182-setup.c
index 67ec6959b267..4fc46772a087 100644
--- a/arch/arm/mach-orion5x/rd88f5182-setup.c
+++ b/arch/arm/mach-orion5x/rd88f5182-setup.c
@@ -148,7 +148,7 @@ void __init rd88f5182_pci_preinit(void)
 	pin = RD88F5182_PCI_SLOT0_IRQ_A_PIN;
 	if (gpio_request(pin, "PCI IntA") == 0) {
 		if (gpio_direction_input(pin) == 0) {
-			set_irq_type(gpio_to_irq(pin), IRQ_TYPE_LEVEL_LOW);
+			irq_set_irq_type(gpio_to_irq(pin), IRQ_TYPE_LEVEL_LOW);
 		} else {
 			printk(KERN_ERR "rd88f5182_pci_preinit faield to "
 					"set_irq_type pin %d\n", pin);
@@ -161,7 +161,7 @@ void __init rd88f5182_pci_preinit(void)
 	pin = RD88F5182_PCI_SLOT0_IRQ_B_PIN;
 	if (gpio_request(pin, "PCI IntB") == 0) {
 		if (gpio_direction_input(pin) == 0) {
-			set_irq_type(gpio_to_irq(pin), IRQ_TYPE_LEVEL_LOW);
+			irq_set_irq_type(gpio_to_irq(pin), IRQ_TYPE_LEVEL_LOW);
 		} else {
 			printk(KERN_ERR "rd88f5182_pci_preinit faield to "
 					"set_irq_type pin %d\n", pin);
diff --git a/arch/arm/mach-orion5x/terastation_pro2-setup.c b/arch/arm/mach-orion5x/terastation_pro2-setup.c
index 5653ee6c71d8..616004143912 100644
--- a/arch/arm/mach-orion5x/terastation_pro2-setup.c
+++ b/arch/arm/mach-orion5x/terastation_pro2-setup.c
@@ -88,7 +88,7 @@ void __init tsp2_pci_preinit(void)
 	pin = TSP2_PCI_SLOT0_IRQ_PIN;
 	if (gpio_request(pin, "PCI Int1") == 0) {
 		if (gpio_direction_input(pin) == 0) {
-			set_irq_type(gpio_to_irq(pin), IRQ_TYPE_LEVEL_LOW);
+			irq_set_irq_type(gpio_to_irq(pin), IRQ_TYPE_LEVEL_LOW);
 		} else {
 			printk(KERN_ERR "tsp2_pci_preinit failed "
 					"to set_irq_type pin %d\n", pin);
diff --git a/arch/arm/mach-orion5x/ts209-setup.c b/arch/arm/mach-orion5x/ts209-setup.c
index 8bbd27ea6735..e6d64494d3de 100644
--- a/arch/arm/mach-orion5x/ts209-setup.c
+++ b/arch/arm/mach-orion5x/ts209-setup.c
@@ -36,7 +36,7 @@
 
 /****************************************************************************
  * 8MiB NOR flash. The struct mtd_partition is not in the same order as the
- *     partitions on the device because we want to keep compatability with
+ *     partitions on the device because we want to keep compatibility with
  *     existing QNAP firmware.
  *
  * Layout as used by QNAP:
@@ -117,7 +117,7 @@ void __init qnap_ts209_pci_preinit(void)
 	pin = QNAP_TS209_PCI_SLOT0_IRQ_PIN;
 	if (gpio_request(pin, "PCI Int1") == 0) {
 		if (gpio_direction_input(pin) == 0) {
-			set_irq_type(gpio_to_irq(pin), IRQ_TYPE_LEVEL_LOW);
+			irq_set_irq_type(gpio_to_irq(pin), IRQ_TYPE_LEVEL_LOW);
 		} else {
 			printk(KERN_ERR "qnap_ts209_pci_preinit failed to "
 					"set_irq_type pin %d\n", pin);
@@ -131,7 +131,7 @@ void __init qnap_ts209_pci_preinit(void)
 	pin = QNAP_TS209_PCI_SLOT1_IRQ_PIN;
 	if (gpio_request(pin, "PCI Int2") == 0) {
 		if (gpio_direction_input(pin) == 0) {
-			set_irq_type(gpio_to_irq(pin), IRQ_TYPE_LEVEL_LOW);
+			irq_set_irq_type(gpio_to_irq(pin), IRQ_TYPE_LEVEL_LOW);
 		} else {
 			printk(KERN_ERR "qnap_ts209_pci_preinit failed "
 					"to set_irq_type pin %d\n", pin);
diff --git a/arch/arm/mach-orion5x/ts409-setup.c b/arch/arm/mach-orion5x/ts409-setup.c
index 92f393f08fa4..9eac8192d923 100644
--- a/arch/arm/mach-orion5x/ts409-setup.c
+++ b/arch/arm/mach-orion5x/ts409-setup.c
@@ -56,7 +56,7 @@
 
 /****************************************************************************
  * 8MiB NOR flash. The struct mtd_partition is not in the same order as the
- *     partitions on the device because we want to keep compatability with
+ *     partitions on the device because we want to keep compatibility with
  *     existing QNAP firmware.
  *
  * Layout as used by QNAP:
diff --git a/arch/arm/mach-orion5x/ts78xx-setup.c b/arch/arm/mach-orion5x/ts78xx-setup.c
index 8554707d20a9..edb1dd2d1611 100644
--- a/arch/arm/mach-orion5x/ts78xx-setup.c
+++ b/arch/arm/mach-orion5x/ts78xx-setup.c
@@ -402,7 +402,7 @@ static void ts78xx_fpga_supports(void)
 		/* enable devices if magic matches */
 		switch ((ts78xx_fpga.id >> 8) & 0xffffff) {
 		case TS7800_FPGA_MAGIC:
-			printk(KERN_WARNING "TS-7800 FPGA: unrecognized revision 0x%.2x\n",
+			pr_warning("TS-7800 FPGA: unrecognized revision 0x%.2x\n",
 					ts78xx_fpga.id & 0xff);
 			ts78xx_fpga.supports.ts_rtc.present = 1;
 			ts78xx_fpga.supports.ts_nand.present = 1;
@@ -423,7 +423,7 @@ static int ts78xx_fpga_load_devices(void)
 	if (ts78xx_fpga.supports.ts_rtc.present == 1) {
 		tmp = ts78xx_ts_rtc_load();
 		if (tmp) {
-			printk(KERN_INFO "TS-78xx: RTC not registered\n");
+			pr_info("TS-78xx: RTC not registered\n");
 			ts78xx_fpga.supports.ts_rtc.present = 0;
 		}
 		ret |= tmp;
@@ -431,7 +431,7 @@ static int ts78xx_fpga_load_devices(void)
 	if (ts78xx_fpga.supports.ts_nand.present == 1) {
 		tmp = ts78xx_ts_nand_load();
 		if (tmp) {
-			printk(KERN_INFO "TS-78xx: NAND not registered\n");
+			pr_info("TS-78xx: NAND not registered\n");
 			ts78xx_fpga.supports.ts_nand.present = 0;
 		}
 		ret |= tmp;
@@ -439,7 +439,7 @@ static int ts78xx_fpga_load_devices(void)
 	if (ts78xx_fpga.supports.ts_rng.present == 1) {
 		tmp = ts78xx_ts_rng_load();
 		if (tmp) {
-			printk(KERN_INFO "TS-78xx: RNG not registered\n");
+			pr_info("TS-78xx: RNG not registered\n");
 			ts78xx_fpga.supports.ts_rng.present = 0;
 		}
 		ret |= tmp;
@@ -466,7 +466,7 @@ static int ts78xx_fpga_load(void)
 {
 	ts78xx_fpga.id = readl(TS78XX_FPGA_REGS_VIRT_BASE);
 
-	printk(KERN_INFO "TS-78xx FPGA: magic=0x%.6x, rev=0x%.2x\n",
+	pr_info("TS-78xx FPGA: magic=0x%.6x, rev=0x%.2x\n",
 			(ts78xx_fpga.id >> 8) & 0xffffff,
 			ts78xx_fpga.id & 0xff);
 
@@ -494,7 +494,7 @@ static int ts78xx_fpga_unload(void)
 	 * UrJTAG SVN since r1381 can be used to reprogram the FPGA
 	 */
 	if (ts78xx_fpga.id != fpga_id) {
-		printk(KERN_ERR	"TS-78xx FPGA: magic/rev mismatch\n"
+		pr_err("TS-78xx FPGA: magic/rev mismatch\n"
 			"TS-78xx FPGA: was 0x%.6x/%.2x but now 0x%.6x/%.2x\n",
 			(ts78xx_fpga.id >> 8) & 0xffffff, ts78xx_fpga.id & 0xff,
 			(fpga_id >> 8) & 0xffffff, fpga_id & 0xff);
@@ -525,7 +525,7 @@ static ssize_t ts78xx_fpga_store(struct kobject *kobj,
 	int value, ret;
 
 	if (ts78xx_fpga.state < 0) {
-		printk(KERN_ERR "TS-78xx FPGA: borked, you must powercycle asap\n");
+		pr_err("TS-78xx FPGA: borked, you must powercycle asap\n");
 		return -EBUSY;
 	}
 
@@ -534,7 +534,7 @@ static ssize_t ts78xx_fpga_store(struct kobject *kobj,
 	else if (strncmp(buf, "offline", sizeof("offline") - 1) == 0)
 		value = 0;
 	else {
-		printk(KERN_ERR "ts78xx_fpga_store: Invalid value\n");
+		pr_err("ts78xx_fpga_store: Invalid value\n");
 		return -EINVAL;
 	}
 
@@ -616,7 +616,7 @@ static void __init ts78xx_init(void)
 	ret = ts78xx_fpga_load();
 	ret = sysfs_create_file(power_kobj, &ts78xx_fpga_attr.attr);
 	if (ret)
-		printk(KERN_ERR "sysfs_create_file failed: %d\n", ret);
+		pr_err("sysfs_create_file failed: %d\n", ret);
 }
 
 MACHINE_START(TS78XX, "Technologic Systems TS-78xx SBC")
diff --git a/arch/arm/mach-pnx4008/irq.c b/arch/arm/mach-pnx4008/irq.c
index c69c180aec76..7608c7a288cf 100644
--- a/arch/arm/mach-pnx4008/irq.c
+++ b/arch/arm/mach-pnx4008/irq.c
@@ -58,22 +58,22 @@ static int pnx4008_set_irq_type(struct irq_data *d, unsigned int type)
 	case IRQ_TYPE_EDGE_RISING:
 		__raw_writel(__raw_readl(INTC_ATR(d->irq)) | INTC_BIT(d->irq), INTC_ATR(d->irq));	/*edge sensitive */
 		__raw_writel(__raw_readl(INTC_APR(d->irq)) | INTC_BIT(d->irq), INTC_APR(d->irq));	/*rising edge */
-		set_irq_handler(d->irq, handle_edge_irq);
+		irq_set_handler(d->irq, handle_edge_irq);
 		break;
 	case IRQ_TYPE_EDGE_FALLING:
 		__raw_writel(__raw_readl(INTC_ATR(d->irq)) | INTC_BIT(d->irq), INTC_ATR(d->irq));	/*edge sensitive */
 		__raw_writel(__raw_readl(INTC_APR(d->irq)) & ~INTC_BIT(d->irq), INTC_APR(d->irq));	/*falling edge */
-		set_irq_handler(d->irq, handle_edge_irq);
+		irq_set_handler(d->irq, handle_edge_irq);
 		break;
 	case IRQ_TYPE_LEVEL_LOW:
 		__raw_writel(__raw_readl(INTC_ATR(d->irq)) & ~INTC_BIT(d->irq), INTC_ATR(d->irq));	/*level sensitive */
 		__raw_writel(__raw_readl(INTC_APR(d->irq)) & ~INTC_BIT(d->irq), INTC_APR(d->irq));	/*low level */
-		set_irq_handler(d->irq, handle_level_irq);
+		irq_set_handler(d->irq, handle_level_irq);
 		break;
 	case IRQ_TYPE_LEVEL_HIGH:
 		__raw_writel(__raw_readl(INTC_ATR(d->irq)) & ~INTC_BIT(d->irq), INTC_ATR(d->irq));	/*level sensitive */
 		__raw_writel(__raw_readl(INTC_APR(d->irq)) | INTC_BIT(d->irq), INTC_APR(d->irq));	/* high level */
-		set_irq_handler(d->irq, handle_level_irq);
+		irq_set_handler(d->irq, handle_level_irq);
 		break;
 
 	/* IRQ_TYPE_EDGE_BOTH is not supported */
@@ -98,7 +98,7 @@ void __init pnx4008_init_irq(void)
 	/* configure IRQ's */
 	for (i = 0; i < NR_IRQS; i++) {
 		set_irq_flags(i, IRQF_VALID);
-		set_irq_chip(i, &pnx4008_irq_chip);
+		irq_set_chip(i, &pnx4008_irq_chip);
 		pnx4008_set_irq_type(irq_get_irq_data(i), pnx4008_irq_type[i]);
 	}
 
diff --git a/arch/arm/mach-pxa/am200epd.c b/arch/arm/mach-pxa/am200epd.c
index 3499fada73ae..4cb069fd9af2 100644
--- a/arch/arm/mach-pxa/am200epd.c
+++ b/arch/arm/mach-pxa/am200epd.c
@@ -128,8 +128,8 @@ static int am200_init_gpio_regs(struct metronomefb_par *par)
 	return 0;
 
 err_req_gpio:
-	while (i > 0)
-		gpio_free(gpios[i--]);
+	while (--i >= 0)
+		gpio_free(gpios[i]);
 
 	return err;
 }
@@ -194,7 +194,7 @@ static struct notifier_block am200_fb_notif = {
 };
 
 /* this gets called as part of our init. these steps must be done now so
- * that we can use set_pxa_fb_info */
+ * that we can use pxa_set_fb_info */
 static void __init am200_presetup_fb(void)
 {
 	int fw;
@@ -249,7 +249,7 @@ static void __init am200_presetup_fb(void)
 	/* we divide since we told the LCD controller we're 16bpp */
 	am200_fb_info.modes->xres /= 2;
 
-	set_pxa_fb_info(&am200_fb_info);
+	pxa_set_fb_info(NULL, &am200_fb_info);
 
 }
 
diff --git a/arch/arm/mach-pxa/am300epd.c b/arch/arm/mach-pxa/am300epd.c
index 993d75e66390..fa8bad235d9f 100644
--- a/arch/arm/mach-pxa/am300epd.c
+++ b/arch/arm/mach-pxa/am300epd.c
@@ -125,10 +125,7 @@ static int am300_init_gpio_regs(struct broadsheetfb_par *par)
 		if (err) {
 			dev_err(&am300_device->dev, "failed requesting "
 				"gpio %d, err=%d\n", i, err);
-			while (i >= DB0_GPIO_PIN)
-				gpio_free(i--);
-			i = ARRAY_SIZE(gpios) - 1;
-			goto err_req_gpio;
+			goto err_req_gpio2;
 		}
 	}
 
@@ -159,9 +156,13 @@ static int am300_init_gpio_regs(struct broadsheetfb_par *par)
 
 	return 0;
 
+err_req_gpio2:
+	while (--i >= DB0_GPIO_PIN)
+		gpio_free(i);
+	i = ARRAY_SIZE(gpios);
 err_req_gpio:
-	while (i > 0)
-		gpio_free(gpios[i--]);
+	while (--i >= 0)
+		gpio_free(gpios[i]);
 
 	return err;
 }
diff --git a/arch/arm/mach-pxa/balloon3.c b/arch/arm/mach-pxa/balloon3.c
index d2af73321dae..bfbecec6d05f 100644
--- a/arch/arm/mach-pxa/balloon3.c
+++ b/arch/arm/mach-pxa/balloon3.c
@@ -263,7 +263,7 @@ static void __init balloon3_lcd_init(void)
 	}
 
 	balloon3_lcd_screen.pxafb_backlight_power = balloon3_backlight_power;
-	set_pxa_fb_info(&balloon3_lcd_screen);
+	pxa_set_fb_info(NULL, &balloon3_lcd_screen);
 	return;
 
 err2:
@@ -527,13 +527,13 @@ static void __init balloon3_init_irq(void)
 	pxa27x_init_irq();
 	/* setup extra Balloon3 irqs */
 	for (irq = BALLOON3_IRQ(0); irq <= BALLOON3_IRQ(7); irq++) {
-		set_irq_chip(irq, &balloon3_irq_chip);
-		set_irq_handler(irq, handle_level_irq);
+		irq_set_chip_and_handler(irq, &balloon3_irq_chip,
+					 handle_level_irq);
 		set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
 	}
 
-	set_irq_chained_handler(BALLOON3_AUX_NIRQ, balloon3_irq_handler);
-	set_irq_type(BALLOON3_AUX_NIRQ, IRQ_TYPE_EDGE_FALLING);
+	irq_set_chained_handler(BALLOON3_AUX_NIRQ, balloon3_irq_handler);
+	irq_set_irq_type(BALLOON3_AUX_NIRQ, IRQ_TYPE_EDGE_FALLING);
 
 	pr_debug("%s: chained handler installed - irq %d automatically "
 		"enabled\n", __func__, BALLOON3_AUX_NIRQ);
diff --git a/arch/arm/mach-pxa/cm-x2xx-pci.c b/arch/arm/mach-pxa/cm-x2xx-pci.c
index a2380cd76f80..8b1a30959fae 100644
--- a/arch/arm/mach-pxa/cm-x2xx-pci.c
+++ b/arch/arm/mach-pxa/cm-x2xx-pci.c
@@ -70,9 +70,10 @@ void __cmx2xx_pci_init_irq(int irq_gpio)
 
 	cmx2xx_it8152_irq_gpio = irq_gpio;
 
-	set_irq_type(gpio_to_irq(irq_gpio), IRQ_TYPE_EDGE_RISING);
+	irq_set_irq_type(gpio_to_irq(irq_gpio), IRQ_TYPE_EDGE_RISING);
 
-	set_irq_chained_handler(gpio_to_irq(irq_gpio), cmx2xx_it8152_irq_demux);
+	irq_set_chained_handler(gpio_to_irq(irq_gpio),
+				cmx2xx_it8152_irq_demux);
 }
 
 #ifdef CONFIG_PM
diff --git a/arch/arm/mach-pxa/cm-x2xx.c b/arch/arm/mach-pxa/cm-x2xx.c
index b734d8468168..8225e2e58c6e 100644
--- a/arch/arm/mach-pxa/cm-x2xx.c
+++ b/arch/arm/mach-pxa/cm-x2xx.c
@@ -379,7 +379,7 @@ __setup("monitor=", cmx2xx_set_display);
 
 static void __init cmx2xx_init_display(void)
 {
-	set_pxa_fb_info(cmx2xx_display);
+	pxa_set_fb_info(NULL, cmx2xx_display);
 }
 #else
 static inline void cmx2xx_init_display(void) {}
diff --git a/arch/arm/mach-pxa/cm-x300.c b/arch/arm/mach-pxa/cm-x300.c
index bfca7ed2fea3..b2248e76ec8b 100644
--- a/arch/arm/mach-pxa/cm-x300.c
+++ b/arch/arm/mach-pxa/cm-x300.c
@@ -296,7 +296,7 @@ static struct pxafb_mach_info cm_x300_lcd = {
 
 static void __init cm_x300_init_lcd(void)
 {
-	set_pxa_fb_info(&cm_x300_lcd);
+	pxa_set_fb_info(NULL, &cm_x300_lcd);
 }
 #else
 static inline void cm_x300_init_lcd(void) {}
@@ -765,7 +765,7 @@ static void __init cm_x300_init_da9030(void)
 {
 	pxa3xx_set_i2c_power_info(&cm_x300_pwr_i2c_info);
 	i2c_register_board_info(1, &cm_x300_pmic_info, 1);
-	set_irq_wake(IRQ_WAKEUP0, 1);
+	irq_set_irq_wake(IRQ_WAKEUP0, 1);
 }
 
 static void __init cm_x300_init_wi2wi(void)
diff --git a/arch/arm/mach-pxa/colibri-pxa270-income.c b/arch/arm/mach-pxa/colibri-pxa270-income.c
index ee797397dc5b..44c1b77ece67 100644
--- a/arch/arm/mach-pxa/colibri-pxa270-income.c
+++ b/arch/arm/mach-pxa/colibri-pxa270-income.c
@@ -175,7 +175,7 @@ static struct pxafb_mach_info income_lcd_screen = {
 
 static void __init income_lcd_init(void)
 {
-	set_pxa_fb_info(&income_lcd_screen);
+	pxa_set_fb_info(NULL, &income_lcd_screen);
 }
 #else
 static inline void income_lcd_init(void) {}
diff --git a/arch/arm/mach-pxa/colibri-pxa3xx.c b/arch/arm/mach-pxa/colibri-pxa3xx.c
index 96b2d9fbfef0..3f9be419959d 100644
--- a/arch/arm/mach-pxa/colibri-pxa3xx.c
+++ b/arch/arm/mach-pxa/colibri-pxa3xx.c
@@ -105,7 +105,7 @@ void __init colibri_pxa3xx_init_lcd(int bl_pin)
 	lcd_bl_pin = bl_pin;
 	gpio_request(bl_pin, "lcd backlight");
 	gpio_direction_output(bl_pin, 0);
-	set_pxa_fb_info(&sharp_lq43_info);
+	pxa_set_fb_info(NULL, &sharp_lq43_info);
 }
 #endif
 
diff --git a/arch/arm/mach-pxa/corgi.c b/arch/arm/mach-pxa/corgi.c
index d4e705caefea..3a5507e31919 100644
--- a/arch/arm/mach-pxa/corgi.c
+++ b/arch/arm/mach-pxa/corgi.c
@@ -462,7 +462,6 @@ static struct pxaficp_platform_data corgi_ficp_platform_data = {
  * USB Device Controller
  */
 static struct pxa2xx_udc_mach_info udc_info __initdata = {
-	.gpio_vbus		= -1,
 	/* no connect GPIO; corgi can't tell connection status */
 	.gpio_pullup		= CORGI_GPIO_USB_PULLUP,
 };
diff --git a/arch/arm/mach-pxa/devices.c b/arch/arm/mach-pxa/devices.c
index c4bf08b3eb61..2e0425404de5 100644
--- a/arch/arm/mach-pxa/devices.c
+++ b/arch/arm/mach-pxa/devices.c
@@ -90,7 +90,6 @@ void __init pxa_set_mci_info(struct pxamci_platform_data *info)
 
 static struct pxa2xx_udc_mach_info pxa_udc_info = {
 	.gpio_pullup = -1,
-	.gpio_vbus   = -1,
 };
 
 void __init pxa_set_udc_info(struct pxa2xx_udc_mach_info *info)
@@ -188,16 +187,12 @@ struct platform_device pxa_device_fb = {
 	.resource	= pxafb_resources,
 };
 
-void __init set_pxa_fb_info(struct pxafb_mach_info *info)
+void __init pxa_set_fb_info(struct device *parent, struct pxafb_mach_info *info)
 {
+	pxa_device_fb.dev.parent = parent;
 	pxa_register_device(&pxa_device_fb, info);
 }
 
-void __init set_pxa_fb_parent(struct device *parent_dev)
-{
-	pxa_device_fb.dev.parent = parent_dev;
-}
-
 static struct resource pxa_resource_ffuart[] = {
 	{
 		.start	= 0x40100000,
diff --git a/arch/arm/mach-pxa/em-x270.c b/arch/arm/mach-pxa/em-x270.c
index b411d7cbf5a1..f8a6e9d79a3a 100644
--- a/arch/arm/mach-pxa/em-x270.c
+++ b/arch/arm/mach-pxa/em-x270.c
@@ -689,7 +689,7 @@ static struct pxafb_mach_info em_x270_lcd = {
 
 static void __init em_x270_init_lcd(void)
 {
-	set_pxa_fb_info(&em_x270_lcd);
+	pxa_set_fb_info(NULL, &em_x270_lcd);
 }
 #else
 static inline void em_x270_init_lcd(void) {}
diff --git a/arch/arm/mach-pxa/eseries.c b/arch/arm/mach-pxa/eseries.c
index edca0a043293..2e3970fdde0b 100644
--- a/arch/arm/mach-pxa/eseries.c
+++ b/arch/arm/mach-pxa/eseries.c
@@ -20,6 +20,7 @@
 #include <linux/mfd/t7l66xb.h>
 #include <linux/mtd/nand.h>
 #include <linux/mtd/partitions.h>
+#include <linux/usb/gpio_vbus.h>
 
 #include <video/w100fb.h>
 
@@ -51,12 +52,20 @@ void __init eseries_fixup(struct machine_desc *desc,
 		mi->bank[0].size = (64*1024*1024);
 }
 
-struct pxa2xx_udc_mach_info e7xx_udc_mach_info = {
+struct gpio_vbus_mach_info e7xx_udc_info = {
 	.gpio_vbus   = GPIO_E7XX_USB_DISC,
 	.gpio_pullup = GPIO_E7XX_USB_PULLUP,
 	.gpio_pullup_inverted = 1
 };
 
+static struct platform_device e7xx_gpio_vbus = {
+	.name	= "gpio-vbus",
+	.id	= -1,
+	.dev	= {
+		.platform_data	= &e7xx_udc_info,
+	},
+};
+
 struct pxaficp_platform_data e7xx_ficp_platform_data = {
 	.gpio_pwdown		= GPIO_E7XX_IR_OFF,
 	.transceiver_cap	= IR_SIRMODE | IR_OFF,
@@ -165,6 +174,7 @@ static struct platform_device e330_tc6387xb_device = {
 
 static struct platform_device *e330_devices[] __initdata = {
 	&e330_tc6387xb_device,
+	&e7xx_gpio_vbus,
 };
 
 static void __init e330_init(void)
@@ -175,7 +185,6 @@ static void __init e330_init(void)
 	eseries_register_clks();
 	eseries_get_tmio_gpios();
 	platform_add_devices(ARRAY_AND_SIZE(e330_devices));
-	pxa_set_udc_info(&e7xx_udc_mach_info);
 }
 
 MACHINE_START(E330, "Toshiba e330")
@@ -214,6 +223,7 @@ static struct platform_device e350_t7l66xb_device = {
 
 static struct platform_device *e350_devices[] __initdata = {
 	&e350_t7l66xb_device,
+	&e7xx_gpio_vbus,
 };
 
 static void __init e350_init(void)
@@ -224,7 +234,6 @@ static void __init e350_init(void)
 	eseries_register_clks();
 	eseries_get_tmio_gpios();
 	platform_add_devices(ARRAY_AND_SIZE(e350_devices));
-	pxa_set_udc_info(&e7xx_udc_mach_info);
 }
 
 MACHINE_START(E350, "Toshiba e350")
@@ -333,6 +342,7 @@ static struct platform_device e400_t7l66xb_device = {
 
 static struct platform_device *e400_devices[] __initdata = {
 	&e400_t7l66xb_device,
+	&e7xx_gpio_vbus,
 };
 
 static void __init e400_init(void)
@@ -344,9 +354,8 @@ static void __init e400_init(void)
 	/* Fixme - e400 may have a switched clock */
 	eseries_register_clks();
 	eseries_get_tmio_gpios();
-	set_pxa_fb_info(&e400_pxafb_mach_info);
+	pxa_set_fb_info(NULL, &e400_pxafb_mach_info);
 	platform_add_devices(ARRAY_AND_SIZE(e400_devices));
-	pxa_set_udc_info(&e7xx_udc_mach_info);
 }
 
 MACHINE_START(E400, "Toshiba e400")
@@ -519,6 +528,7 @@ static struct platform_device e740_t7l66xb_device = {
 static struct platform_device *e740_devices[] __initdata = {
 	&e740_fb_device,
 	&e740_t7l66xb_device,
+	&e7xx_gpio_vbus,
 };
 
 static void __init e740_init(void)
@@ -532,7 +542,6 @@ static void __init e740_init(void)
 			"UDCCLK", &pxa25x_device_udc.dev),
 	eseries_get_tmio_gpios();
 	platform_add_devices(ARRAY_AND_SIZE(e740_devices));
-	pxa_set_udc_info(&e7xx_udc_mach_info);
 	pxa_set_ac97_info(NULL);
 	pxa_set_ficp_info(&e7xx_ficp_platform_data);
 }
@@ -711,6 +720,7 @@ static struct platform_device e750_tc6393xb_device = {
 static struct platform_device *e750_devices[] __initdata = {
 	&e750_fb_device,
 	&e750_tc6393xb_device,
+	&e7xx_gpio_vbus,
 };
 
 static void __init e750_init(void)
@@ -723,7 +733,6 @@ static void __init e750_init(void)
 			"GPIO11_CLK", NULL),
 	eseries_get_tmio_gpios();
 	platform_add_devices(ARRAY_AND_SIZE(e750_devices));
-	pxa_set_udc_info(&e7xx_udc_mach_info);
 	pxa_set_ac97_info(NULL);
 	pxa_set_ficp_info(&e7xx_ficp_platform_data);
 }
@@ -873,12 +882,21 @@ static struct platform_device e800_fb_device = {
 
 /* --------------------------- UDC definitions --------------------------- */
 
-static struct pxa2xx_udc_mach_info e800_udc_mach_info = {
+static struct gpio_vbus_mach_info e800_udc_info = {
 	.gpio_vbus   = GPIO_E800_USB_DISC,
 	.gpio_pullup = GPIO_E800_USB_PULLUP,
 	.gpio_pullup_inverted = 1
 };
 
+static struct platform_device e800_gpio_vbus = {
+	.name	= "gpio-vbus",
+	.id	= -1,
+	.dev	= {
+		.platform_data	= &e800_udc_info,
+	},
+};
+
+
 /* ----------------- e800 tc6393xb parameters ------------------ */
 
 static struct tc6393xb_platform_data e800_tc6393xb_info = {
@@ -907,6 +925,7 @@ static struct platform_device e800_tc6393xb_device = {
 static struct platform_device *e800_devices[] __initdata = {
 	&e800_fb_device,
 	&e800_tc6393xb_device,
+	&e800_gpio_vbus,
 };
 
 static void __init e800_init(void)
@@ -919,7 +938,6 @@ static void __init e800_init(void)
 			"GPIO11_CLK", NULL),
 	eseries_get_tmio_gpios();
 	platform_add_devices(ARRAY_AND_SIZE(e800_devices));
-	pxa_set_udc_info(&e800_udc_mach_info);
 	pxa_set_ac97_info(NULL);
 }
 
diff --git a/arch/arm/mach-pxa/ezx.c b/arch/arm/mach-pxa/ezx.c
index 93f05e024313..d88aed8fbe15 100644
--- a/arch/arm/mach-pxa/ezx.c
+++ b/arch/arm/mach-pxa/ezx.c
@@ -783,7 +783,7 @@ static void __init a780_init(void)
 
 	pxa_set_i2c_info(NULL);
 
-	set_pxa_fb_info(&ezx_fb_info_1);
+	pxa_set_fb_info(NULL, &ezx_fb_info_1);
 
 	pxa_set_keypad_info(&a780_keypad_platform_data);
 
@@ -853,7 +853,7 @@ static void __init e680_init(void)
 	pxa_set_i2c_info(NULL);
 	i2c_register_board_info(0, ARRAY_AND_SIZE(e680_i2c_board_info));
 
-	set_pxa_fb_info(&ezx_fb_info_1);
+	pxa_set_fb_info(NULL, &ezx_fb_info_1);
 
 	pxa_set_keypad_info(&e680_keypad_platform_data);
 
@@ -918,7 +918,7 @@ static void __init a1200_init(void)
 	pxa_set_i2c_info(NULL);
 	i2c_register_board_info(0, ARRAY_AND_SIZE(a1200_i2c_board_info));
 
-	set_pxa_fb_info(&ezx_fb_info_2);
+	pxa_set_fb_info(NULL, &ezx_fb_info_2);
 
 	pxa_set_keypad_info(&a1200_keypad_platform_data);
 
@@ -1103,7 +1103,7 @@ static void __init a910_init(void)
 	pxa_set_i2c_info(NULL);
 	i2c_register_board_info(0, ARRAY_AND_SIZE(a910_i2c_board_info));
 
-	set_pxa_fb_info(&ezx_fb_info_2);
+	pxa_set_fb_info(NULL, &ezx_fb_info_2);
 
 	pxa_set_keypad_info(&a910_keypad_platform_data);
 
@@ -1173,7 +1173,7 @@ static void __init e6_init(void)
 	pxa_set_i2c_info(NULL);
 	i2c_register_board_info(0, ARRAY_AND_SIZE(e6_i2c_board_info));
 
-	set_pxa_fb_info(&ezx_fb_info_2);
+	pxa_set_fb_info(NULL, &ezx_fb_info_2);
 
 	pxa_set_keypad_info(&e6_keypad_platform_data);
 
@@ -1212,7 +1212,7 @@ static void __init e2_init(void)
 	pxa_set_i2c_info(NULL);
 	i2c_register_board_info(0, ARRAY_AND_SIZE(e2_i2c_board_info));
 
-	set_pxa_fb_info(&ezx_fb_info_2);
+	pxa_set_fb_info(NULL, &ezx_fb_info_2);
 
 	pxa_set_keypad_info(&e2_keypad_platform_data);
 
diff --git a/arch/arm/mach-pxa/gumstix.c b/arch/arm/mach-pxa/gumstix.c
index 6fd319ea5284..d65e4bde9b91 100644
--- a/arch/arm/mach-pxa/gumstix.c
+++ b/arch/arm/mach-pxa/gumstix.c
@@ -26,6 +26,7 @@
 #include <linux/gpio.h>
 #include <linux/err.h>
 #include <linux/clk.h>
+#include <linux/usb/gpio_vbus.h>
 
 #include <asm/setup.h>
 #include <asm/memory.h>
@@ -106,14 +107,22 @@ static void __init gumstix_mmc_init(void)
 #endif
 
 #ifdef CONFIG_USB_GADGET_PXA25X
-static struct pxa2xx_udc_mach_info gumstix_udc_info __initdata = {
+static struct gpio_vbus_mach_info gumstix_udc_info = {
 	.gpio_vbus		= GPIO_GUMSTIX_USB_GPIOn,
 	.gpio_pullup		= GPIO_GUMSTIX_USB_GPIOx,
 };
 
+static struct platform_device gumstix_gpio_vbus = {
+	.name	= "gpio-vbus",
+	.id	= -1,
+	.dev	= {
+		.platform_data	= &gumstix_udc_info,
+	},
+};
+
 static void __init gumstix_udc_init(void)
 {
-	pxa_set_udc_info(&gumstix_udc_info);
+	platform_device_register(&gumstix_gpio_vbus);
 }
 #else
 static void gumstix_udc_init(void)
diff --git a/arch/arm/mach-pxa/idp.c b/arch/arm/mach-pxa/idp.c
index dd40e4a9291c..f7fb64f11a7d 100644
--- a/arch/arm/mach-pxa/idp.c
+++ b/arch/arm/mach-pxa/idp.c
@@ -167,7 +167,7 @@ static void __init idp_init(void)
 
 	platform_device_register(&smc91x_device);
 	//platform_device_register(&mst_audio_device);
-	set_pxa_fb_info(&sharp_lm8v31);
+	pxa_set_fb_info(NULL, &sharp_lm8v31);
 	pxa_set_mci_info(&idp_mci_platform_data);
 }
 
diff --git a/arch/arm/mach-pxa/include/mach/palmz72.h b/arch/arm/mach-pxa/include/mach/palmz72.h
index 2bbcf70dd935..0d4700a79612 100644
--- a/arch/arm/mach-pxa/include/mach/palmz72.h
+++ b/arch/arm/mach-pxa/include/mach/palmz72.h
@@ -44,6 +44,11 @@
 #define GPIO_NR_PALMZ72_BT_POWER		17
 #define GPIO_NR_PALMZ72_BT_RESET		83
 
+/* Camera */
+#define GPIO_NR_PALMZ72_CAM_PWDN		56
+#define GPIO_NR_PALMZ72_CAM_RESET		57
+#define GPIO_NR_PALMZ72_CAM_POWER		91
+
 /** Initial values **/
 
 /* Battery */
diff --git a/arch/arm/mach-pxa/include/mach/pxa3xx-regs.h b/arch/arm/mach-pxa/include/mach/pxa3xx-regs.h
index e4fb4668c26e..207ecb49a61b 100644
--- a/arch/arm/mach-pxa/include/mach/pxa3xx-regs.h
+++ b/arch/arm/mach-pxa/include/mach/pxa3xx-regs.h
@@ -38,7 +38,7 @@
 #define PCMD(x)		__REG(0x40F50110 + ((x) << 2))
 
 /*
- * Slave Power Managment Unit
+ * Slave Power Management Unit
  */
 #define ASCR		__REG(0x40f40000)	/* Application Subsystem Power Status/Configuration */
 #define ARSR		__REG(0x40f40004)	/* Application Subsystem Reset Status */
diff --git a/arch/arm/mach-pxa/include/mach/pxafb.h b/arch/arm/mach-pxa/include/mach/pxafb.h
index 160ec83f51a6..01a45ac48114 100644
--- a/arch/arm/mach-pxa/include/mach/pxafb.h
+++ b/arch/arm/mach-pxa/include/mach/pxafb.h
@@ -154,8 +154,8 @@ struct pxafb_mach_info {
 	void (*pxafb_lcd_power)(int, struct fb_var_screeninfo *);
 	void (*smart_update)(struct fb_info *);
 };
-void set_pxa_fb_info(struct pxafb_mach_info *hard_pxa_fb_info);
-void set_pxa_fb_parent(struct device *parent_dev);
+
+void pxa_set_fb_info(struct device *, struct pxafb_mach_info *);
 unsigned long pxafb_get_hsync_time(struct device *dev);
 
 extern int pxafb_smart_queue(struct fb_info *info, uint16_t *cmds, int);
diff --git a/arch/arm/mach-pxa/include/mach/z2.h b/arch/arm/mach-pxa/include/mach/z2.h
index 8835c16bc82f..7b0f71ef3167 100644
--- a/arch/arm/mach-pxa/include/mach/z2.h
+++ b/arch/arm/mach-pxa/include/mach/z2.h
@@ -25,8 +25,7 @@
 #define	GPIO98_ZIPITZ2_LID_BUTTON	98
 
 /* Libertas GSPI8686 WiFi */
-#define	GPIO14_ZIPITZ2_WIFI_RESET	14
-#define	GPIO15_ZIPITZ2_WIFI_POWER	15
+#define	GPIO14_ZIPITZ2_WIFI_POWER	14
 #define	GPIO24_ZIPITZ2_WIFI_CS		24
 #define	GPIO36_ZIPITZ2_WIFI_IRQ		36
 
diff --git a/arch/arm/mach-pxa/include/mach/zeus.h b/arch/arm/mach-pxa/include/mach/zeus.h
index faa408ab7ad7..0641f31a56b7 100644
--- a/arch/arm/mach-pxa/include/mach/zeus.h
+++ b/arch/arm/mach-pxa/include/mach/zeus.h
@@ -64,7 +64,7 @@
 
 /*
  * CPLD registers:
- * Only 4 registers, but spreaded over a 32MB address space.
+ * Only 4 registers, but spread over a 32MB address space.
  * Be gentle, and remap that over 32kB...
  */
 
diff --git a/arch/arm/mach-pxa/irq.c b/arch/arm/mach-pxa/irq.c
index 2693e3c3776f..6251e3f5c62c 100644
--- a/arch/arm/mach-pxa/irq.c
+++ b/arch/arm/mach-pxa/irq.c
@@ -137,9 +137,9 @@ static void __init pxa_init_low_gpio_irq(set_wake_t fn)
 	GEDR0 = 0x3;
 
 	for (irq = IRQ_GPIO0; irq <= IRQ_GPIO1; irq++) {
-		set_irq_chip(irq, &pxa_low_gpio_chip);
-		set_irq_chip_data(irq, irq_base(0));
-		set_irq_handler(irq, handle_edge_irq);
+		irq_set_chip_and_handler(irq, &pxa_low_gpio_chip,
+					 handle_edge_irq);
+		irq_set_chip_data(irq, irq_base(0));
 		set_irq_flags(irq, IRQF_VALID);
 	}
 
@@ -165,9 +165,9 @@ void __init pxa_init_irq(int irq_nr, set_wake_t fn)
 				__raw_writel(i | IPR_VALID, IRQ_BASE + IPR(i));
 
 			irq = PXA_IRQ(i);
-			set_irq_chip(irq, &pxa_internal_irq_chip);
-			set_irq_chip_data(irq, base);
-			set_irq_handler(irq, handle_level_irq);
+			irq_set_chip_and_handler(irq, &pxa_internal_irq_chip,
+						 handle_level_irq);
+			irq_set_chip_data(irq, base);
 			set_irq_flags(irq, IRQF_VALID);
 		}
 	}
diff --git a/arch/arm/mach-pxa/littleton.c b/arch/arm/mach-pxa/littleton.c
index 87c1ed9ccd2f..e5e326d2cdc9 100644
--- a/arch/arm/mach-pxa/littleton.c
+++ b/arch/arm/mach-pxa/littleton.c
@@ -185,7 +185,7 @@ static struct pxafb_mach_info littleton_lcd_info = {
 
 static void littleton_init_lcd(void)
 {
-	set_pxa_fb_info(&littleton_lcd_info);
+	pxa_set_fb_info(NULL, &littleton_lcd_info);
 }
 #else
 static inline void littleton_init_lcd(void) {};
diff --git a/arch/arm/mach-pxa/lpd270.c b/arch/arm/mach-pxa/lpd270.c
index c9a3e775c2de..f5de541725b1 100644
--- a/arch/arm/mach-pxa/lpd270.c
+++ b/arch/arm/mach-pxa/lpd270.c
@@ -149,12 +149,12 @@ static void __init lpd270_init_irq(void)
 
 	/* setup extra LogicPD PXA270 irqs */
 	for (irq = LPD270_IRQ(2); irq <= LPD270_IRQ(4); irq++) {
-		set_irq_chip(irq, &lpd270_irq_chip);
-		set_irq_handler(irq, handle_level_irq);
+		irq_set_chip_and_handler(irq, &lpd270_irq_chip,
+					 handle_level_irq);
 		set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
 	}
-	set_irq_chained_handler(IRQ_GPIO(0), lpd270_irq_handler);
-	set_irq_type(IRQ_GPIO(0), IRQ_TYPE_EDGE_FALLING);
+	irq_set_chained_handler(IRQ_GPIO(0), lpd270_irq_handler);
+	irq_set_irq_type(IRQ_GPIO(0), IRQ_TYPE_EDGE_FALLING);
 }
 
 
@@ -480,7 +480,7 @@ static void __init lpd270_init(void)
 	pxa_set_ac97_info(NULL);
 
 	if (lpd270_lcd_to_use != NULL)
-		set_pxa_fb_info(lpd270_lcd_to_use);
+		pxa_set_fb_info(NULL, lpd270_lcd_to_use);
 
 	pxa_set_ohci_info(&lpd270_ohci_platform_data);
 }
diff --git a/arch/arm/mach-pxa/lubbock.c b/arch/arm/mach-pxa/lubbock.c
index dca20de306bb..3ede978c83d9 100644
--- a/arch/arm/mach-pxa/lubbock.c
+++ b/arch/arm/mach-pxa/lubbock.c
@@ -165,13 +165,13 @@ static void __init lubbock_init_irq(void)
 
 	/* setup extra lubbock irqs */
 	for (irq = LUBBOCK_IRQ(0); irq <= LUBBOCK_LAST_IRQ; irq++) {
-		set_irq_chip(irq, &lubbock_irq_chip);
-		set_irq_handler(irq, handle_level_irq);
+		irq_set_chip_and_handler(irq, &lubbock_irq_chip,
+					 handle_level_irq);
 		set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
 	}
 
-	set_irq_chained_handler(IRQ_GPIO(0), lubbock_irq_handler);
-	set_irq_type(IRQ_GPIO(0), IRQ_TYPE_EDGE_FALLING);
+	irq_set_chained_handler(IRQ_GPIO(0), lubbock_irq_handler);
+	irq_set_irq_type(IRQ_GPIO(0), IRQ_TYPE_EDGE_FALLING);
 }
 
 #ifdef CONFIG_PM
@@ -521,7 +521,7 @@ static void __init lubbock_init(void)
 
 	clk_add_alias("SA1111_CLK", NULL, "GPIO11_CLK", NULL);
 	pxa_set_udc_info(&udc_info);
-	set_pxa_fb_info(&sharp_lm8v31);
+	pxa_set_fb_info(NULL, &sharp_lm8v31);
 	pxa_set_mci_info(&lubbock_mci_platform_data);
 	pxa_set_ficp_info(&lubbock_ficp_platform_data);
 	pxa_set_ac97_info(NULL);
diff --git a/arch/arm/mach-pxa/magician.c b/arch/arm/mach-pxa/magician.c
index 5535991c4a3c..a72993dde2b3 100644
--- a/arch/arm/mach-pxa/magician.c
+++ b/arch/arm/mach-pxa/magician.c
@@ -757,7 +757,7 @@ static void __init magician_init(void)
 		gpio_direction_output(GPIO104_MAGICIAN_LCD_POWER_1, 0);
 		gpio_direction_output(GPIO105_MAGICIAN_LCD_POWER_2, 0);
 		gpio_direction_output(GPIO106_MAGICIAN_LCD_POWER_3, 0);
-		set_pxa_fb_info(lcd_select ? &samsung_info : &toppoly_info);
+		pxa_set_fb_info(NULL, lcd_select ? &samsung_info : &toppoly_info);
 	} else
 		pr_err("LCD detection: CPLD mapping failed\n");
 }
diff --git a/arch/arm/mach-pxa/mainstone.c b/arch/arm/mach-pxa/mainstone.c
index f9542220595a..95163baca29e 100644
--- a/arch/arm/mach-pxa/mainstone.c
+++ b/arch/arm/mach-pxa/mainstone.c
@@ -166,8 +166,8 @@ static void __init mainstone_init_irq(void)
 
 	/* setup extra Mainstone irqs */
 	for(irq = MAINSTONE_IRQ(0); irq <= MAINSTONE_IRQ(15); irq++) {
-		set_irq_chip(irq, &mainstone_irq_chip);
-		set_irq_handler(irq, handle_level_irq);
+		irq_set_chip_and_handler(irq, &mainstone_irq_chip,
+					 handle_level_irq);
 		if (irq == MAINSTONE_IRQ(10) || irq == MAINSTONE_IRQ(14))
 			set_irq_flags(irq, IRQF_VALID | IRQF_PROBE | IRQF_NOAUTOEN);
 		else
@@ -179,8 +179,8 @@ static void __init mainstone_init_irq(void)
 	MST_INTMSKENA = 0;
 	MST_INTSETCLR = 0;
 
-	set_irq_chained_handler(IRQ_GPIO(0), mainstone_irq_handler);
-	set_irq_type(IRQ_GPIO(0), IRQ_TYPE_EDGE_FALLING);
+	irq_set_chained_handler(IRQ_GPIO(0), mainstone_irq_handler);
+	irq_set_irq_type(IRQ_GPIO(0), IRQ_TYPE_EDGE_FALLING);
 }
 
 #ifdef CONFIG_PM
@@ -592,7 +592,7 @@ static void __init mainstone_init(void)
 	else
 		mainstone_pxafb_info.modes = &toshiba_ltm035a776c_mode;
 
-	set_pxa_fb_info(&mainstone_pxafb_info);
+	pxa_set_fb_info(NULL, &mainstone_pxafb_info);
 	mainstone_backlight_register();
 
 	pxa_set_mci_info(&mainstone_mci_platform_data);
diff --git a/arch/arm/mach-pxa/mioa701.c b/arch/arm/mach-pxa/mioa701.c
index 78d98a8607ec..23925db8ff74 100644
--- a/arch/arm/mach-pxa/mioa701.c
+++ b/arch/arm/mach-pxa/mioa701.c
@@ -458,7 +458,7 @@ static struct platform_device strataflash = {
 /*
  * Suspend/Resume bootstrap management
  *
- * MIO A701 reboot sequence is highly ROM dependant. From the one dissassembled,
+ * MIO A701 reboot sequence is highly ROM dependent. From the one dissassembled,
  * this sequence is as follows :
  *   - disables interrupts
  *   - initialize SDRAM (self refresh RAM into active RAM)
@@ -795,7 +795,7 @@ static void __init mioa701_machine_init(void)
 	pxa_set_stuart_info(NULL);
 	mio_gpio_request(ARRAY_AND_SIZE(global_gpios));
 	bootstrap_init();
-	set_pxa_fb_info(&mioa701_pxafb_info);
+	pxa_set_fb_info(NULL, &mioa701_pxafb_info);
 	pxa_set_mci_info(&mioa701_mci_info);
 	pxa_set_keypad_info(&mioa701_keypad_info);
 	pxa_set_udc_info(&mioa701_udc_info);
diff --git a/arch/arm/mach-pxa/palm27x.c b/arch/arm/mach-pxa/palm27x.c
index 72adb3ae2b43..325c245c0a0d 100644
--- a/arch/arm/mach-pxa/palm27x.c
+++ b/arch/arm/mach-pxa/palm27x.c
@@ -1,8 +1,7 @@
 /*
  * Common code for Palm LD, T5, TX, Z72
  *
- * Copyright (C) 2010
- * Marek Vasut <marek.vasut@gmail.com>
+ * Copyright (C) 2010-2011 Marek Vasut <marek.vasut@gmail.com>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -158,7 +157,7 @@ void __init palm27x_lcd_init(int power, struct pxafb_mode_info *mode)
 		palm27x_lcd_screen.pxafb_lcd_power = palm27x_lcd_ctl;
 	}
 
-	set_pxa_fb_info(&palm27x_lcd_screen);
+	pxa_set_fb_info(NULL, &palm27x_lcd_screen);
 }
 #endif
 
diff --git a/arch/arm/mach-pxa/palmtc.c b/arch/arm/mach-pxa/palmtc.c
index a09a2374697b..fb06bd047272 100644
--- a/arch/arm/mach-pxa/palmtc.c
+++ b/arch/arm/mach-pxa/palmtc.c
@@ -507,7 +507,7 @@ static struct pxafb_mach_info palmtc_lcd_screen = {
 
 static void __init palmtc_lcd_init(void)
 {
-	set_pxa_fb_info(&palmtc_lcd_screen);
+	pxa_set_fb_info(NULL, &palmtc_lcd_screen);
 }
 #else
 static inline void palmtc_lcd_init(void) {}
diff --git a/arch/arm/mach-pxa/palmte2.c b/arch/arm/mach-pxa/palmte2.c
index 3f25014a136c..726f5b98dcd3 100644
--- a/arch/arm/mach-pxa/palmte2.c
+++ b/arch/arm/mach-pxa/palmte2.c
@@ -136,30 +136,14 @@ static struct platform_device palmte2_pxa_keys = {
 /******************************************************************************
  * Backlight
  ******************************************************************************/
+static struct gpio palmte_bl_gpios[] = {
+	{ GPIO_NR_PALMTE2_BL_POWER, GPIOF_INIT_LOW, "Backlight power" },
+	{ GPIO_NR_PALMTE2_LCD_POWER, GPIOF_INIT_LOW, "LCD power" },
+};
+
 static int palmte2_backlight_init(struct device *dev)
 {
-	int ret;
-
-	ret = gpio_request(GPIO_NR_PALMTE2_BL_POWER, "BL POWER");
-	if (ret)
-		goto err;
-	ret = gpio_direction_output(GPIO_NR_PALMTE2_BL_POWER, 0);
-	if (ret)
-		goto err2;
-	ret = gpio_request(GPIO_NR_PALMTE2_LCD_POWER, "LCD POWER");
-	if (ret)
-		goto err2;
-	ret = gpio_direction_output(GPIO_NR_PALMTE2_LCD_POWER, 0);
-	if (ret)
-		goto err3;
-
-	return 0;
-err3:
-	gpio_free(GPIO_NR_PALMTE2_LCD_POWER);
-err2:
-	gpio_free(GPIO_NR_PALMTE2_BL_POWER);
-err:
-	return ret;
+	return gpio_request_array(ARRAY_AND_SIZE(palmte_bl_gpios));
 }
 
 static int palmte2_backlight_notify(struct device *dev, int brightness)
@@ -171,8 +155,7 @@ static int palmte2_backlight_notify(struct device *dev, int brightness)
 
 static void palmte2_backlight_exit(struct device *dev)
 {
-	gpio_free(GPIO_NR_PALMTE2_BL_POWER);
-	gpio_free(GPIO_NR_PALMTE2_LCD_POWER);
+	gpio_free_array(ARRAY_AND_SIZE(palmte_bl_gpios));
 }
 
 static struct platform_pwm_backlight_data palmte2_backlight_data = {
@@ -363,7 +346,7 @@ static void __init palmte2_init(void)
 	pxa_set_btuart_info(NULL);
 	pxa_set_stuart_info(NULL);
 
-	set_pxa_fb_info(&palmte2_lcd_screen);
+	pxa_set_fb_info(NULL, &palmte2_lcd_screen);
 	pxa_set_mci_info(&palmte2_mci_platform_data);
 	palmte2_udc_init();
 	pxa_set_ac97_info(&palmte2_ac97_pdata);
diff --git a/arch/arm/mach-pxa/palmz72.c b/arch/arm/mach-pxa/palmz72.c
index 3010193b081e..3b8a4f37dbbe 100644
--- a/arch/arm/mach-pxa/palmz72.c
+++ b/arch/arm/mach-pxa/palmz72.c
@@ -30,6 +30,7 @@
 #include <linux/wm97xx.h>
 #include <linux/power_supply.h>
 #include <linux/usb/gpio_vbus.h>
+#include <linux/i2c-gpio.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
@@ -47,6 +48,9 @@
 #include <mach/palm27x.h>
 
 #include <mach/pm.h>
+#include <mach/camera.h>
+
+#include <media/soc_camera.h>
 
 #include "generic.h"
 #include "devices.h"
@@ -103,6 +107,28 @@ static unsigned long palmz72_pin_config[] __initdata = {
 	GPIO22_GPIO,	/* LCD border color */
 	GPIO96_GPIO,	/* lcd power */
 
+	/* PXA Camera */
+	GPIO81_CIF_DD_0,
+	GPIO48_CIF_DD_5,
+	GPIO50_CIF_DD_3,
+	GPIO51_CIF_DD_2,
+	GPIO52_CIF_DD_4,
+	GPIO53_CIF_MCLK,
+	GPIO54_CIF_PCLK,
+	GPIO55_CIF_DD_1,
+	GPIO84_CIF_FV,
+	GPIO85_CIF_LV,
+	GPIO93_CIF_DD_6,
+	GPIO108_CIF_DD_7,
+
+	GPIO56_GPIO,	/* OV9640 Powerdown */
+	GPIO57_GPIO,	/* OV9640 Reset */
+	GPIO91_GPIO,	/* OV9640 Power */
+
+	/* I2C */
+	GPIO117_GPIO,	/* I2C_SCL */
+	GPIO118_GPIO,	/* I2C_SDA */
+
 	/* Misc. */
 	GPIO0_GPIO	| WAKEUP_ON_LEVEL_HIGH,	/* power detect */
 	GPIO88_GPIO,				/* green led */
@@ -254,6 +280,106 @@ device_initcall(palmz72_pm_init);
 #endif
 
 /******************************************************************************
+ * SoC Camera
+ ******************************************************************************/
+#if defined(CONFIG_SOC_CAMERA_OV9640) || \
+	defined(CONFIG_SOC_CAMERA_OV9640_MODULE)
+static struct pxacamera_platform_data palmz72_pxacamera_platform_data = {
+	.flags		= PXA_CAMERA_MASTER | PXA_CAMERA_DATAWIDTH_8 |
+			PXA_CAMERA_PCLK_EN | PXA_CAMERA_MCLK_EN,
+	.mclk_10khz	= 2600,
+};
+
+/* Board I2C devices. */
+static struct i2c_board_info palmz72_i2c_device[] = {
+	{
+		I2C_BOARD_INFO("ov9640", 0x30),
+	}
+};
+
+static int palmz72_camera_power(struct device *dev, int power)
+{
+	gpio_set_value(GPIO_NR_PALMZ72_CAM_PWDN, !power);
+	mdelay(50);
+	return 0;
+}
+
+static int palmz72_camera_reset(struct device *dev)
+{
+	gpio_set_value(GPIO_NR_PALMZ72_CAM_RESET, 1);
+	mdelay(50);
+	gpio_set_value(GPIO_NR_PALMZ72_CAM_RESET, 0);
+	mdelay(50);
+	return 0;
+}
+
+static struct soc_camera_link palmz72_iclink = {
+	.bus_id		= 0, /* Match id in pxa27x_device_camera in device.c */
+	.board_info	= &palmz72_i2c_device[0],
+	.i2c_adapter_id	= 0,
+	.module_name	= "ov96xx",
+	.power		= &palmz72_camera_power,
+	.reset		= &palmz72_camera_reset,
+	.flags		= SOCAM_DATAWIDTH_8,
+};
+
+static struct i2c_gpio_platform_data palmz72_i2c_bus_data = {
+	.sda_pin	= 118,
+	.scl_pin	= 117,
+	.udelay		= 10,
+	.timeout	= 100,
+};
+
+static struct platform_device palmz72_i2c_bus_device = {
+	.name		= "i2c-gpio",
+	.id		= 0, /* we use this as a replacement for i2c-pxa */
+	.dev		= {
+		.platform_data	= &palmz72_i2c_bus_data,
+	}
+};
+
+static struct platform_device palmz72_camera = {
+	.name	= "soc-camera-pdrv",
+	.id	= -1,
+	.dev	= {
+		.platform_data	= &palmz72_iclink,
+	},
+};
+
+/* Here we request the camera GPIOs and configure them. We power up the camera
+ * module, deassert the reset pin, but put it into powerdown (low to no power
+ * consumption) mode. This allows us to later bring the module up fast. */
+static struct gpio palmz72_camera_gpios[] = {
+	{ GPIO_NR_PALMZ72_CAM_POWER,	GPIOF_INIT_HIGH,"Camera DVDD" },
+	{ GPIO_NR_PALMZ72_CAM_RESET,	GPIOF_INIT_LOW,	"Camera RESET" },
+	{ GPIO_NR_PALMZ72_CAM_PWDN,	GPIOF_INIT_LOW,	"Camera PWDN" },
+};
+
+static inline void __init palmz72_cam_gpio_init(void)
+{
+	int ret;
+
+	ret = gpio_request_array(ARRAY_AND_SIZE(palmz72_camera_gpios));
+	if (!ret)
+		gpio_free_array(ARRAY_AND_SIZE(palmz72_camera_gpios));
+	else
+		printk(KERN_ERR "Camera GPIO init failed!\n");
+
+	return;
+}
+
+static void __init palmz72_camera_init(void)
+{
+	palmz72_cam_gpio_init();
+	pxa_set_camera_info(&palmz72_pxacamera_platform_data);
+	platform_device_register(&palmz72_i2c_bus_device);
+	platform_device_register(&palmz72_camera);
+}
+#else
+static inline void palmz72_camera_init(void) {}
+#endif
+
+/******************************************************************************
  * Machine init
  ******************************************************************************/
 static void __init palmz72_init(void)
@@ -276,6 +402,7 @@ static void __init palmz72_init(void)
 	palm27x_pmic_init();
 	palmz72_kpc_init();
 	palmz72_leds_init();
+	palmz72_camera_init();
 }
 
 MACHINE_START(PALMZ72, "Palm Zire72")
diff --git a/arch/arm/mach-pxa/pcm990-baseboard.c b/arch/arm/mach-pxa/pcm990-baseboard.c
index 9dbf3ccd4150..6d5b7e062124 100644
--- a/arch/arm/mach-pxa/pcm990-baseboard.c
+++ b/arch/arm/mach-pxa/pcm990-baseboard.c
@@ -281,16 +281,16 @@ static void __init pcm990_init_irq(void)
 
 	/* setup extra PCM990 irqs */
 	for (irq = PCM027_IRQ(0); irq <= PCM027_IRQ(3); irq++) {
-		set_irq_chip(irq, &pcm990_irq_chip);
-		set_irq_handler(irq, handle_level_irq);
+		irq_set_chip_and_handler(irq, &pcm990_irq_chip,
+					 handle_level_irq);
 		set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
 	}
 
 	PCM990_INTMSKENA = 0x00;	/* disable all Interrupts */
 	PCM990_INTSETCLR = 0xFF;
 
-	set_irq_chained_handler(PCM990_CTRL_INT_IRQ, pcm990_irq_handler);
-	set_irq_type(PCM990_CTRL_INT_IRQ, PCM990_CTRL_INT_IRQ_EDGE);
+	irq_set_chained_handler(PCM990_CTRL_INT_IRQ, pcm990_irq_handler);
+	irq_set_irq_type(PCM990_CTRL_INT_IRQ, PCM990_CTRL_INT_IRQ_EDGE);
 }
 
 static int pcm990_mci_init(struct device *dev, irq_handler_t mci_detect_int,
@@ -515,7 +515,7 @@ void __init pcm990_baseboard_init(void)
 	pcm990_init_irq();
 
 #ifndef CONFIG_PCM990_DISPLAY_NONE
-	set_pxa_fb_info(&pcm990_fbinfo);
+	pxa_set_fb_info(NULL, &pcm990_fbinfo);
 #endif
 	platform_device_register(&pcm990_backlight_device);
 
diff --git a/arch/arm/mach-pxa/poodle.c b/arch/arm/mach-pxa/poodle.c
index 35353af345d5..16d14fd79b4b 100644
--- a/arch/arm/mach-pxa/poodle.c
+++ b/arch/arm/mach-pxa/poodle.c
@@ -445,8 +445,7 @@ static void __init poodle_init(void)
 	if (ret)
 		pr_warning("poodle: Unable to register LoCoMo device\n");
 
-	set_pxa_fb_parent(&poodle_locomo_device.dev);
-	set_pxa_fb_info(&poodle_fb_info);
+	pxa_set_fb_info(&poodle_locomo_device.dev, &poodle_fb_info);
 	pxa_set_udc_info(&udc_info);
 	pxa_set_mci_info(&poodle_mci_platform_data);
 	pxa_set_ficp_info(&poodle_ficp_platform_data);
diff --git a/arch/arm/mach-pxa/pxa3xx.c b/arch/arm/mach-pxa/pxa3xx.c
index f374247b8466..8dd107391157 100644
--- a/arch/arm/mach-pxa/pxa3xx.c
+++ b/arch/arm/mach-pxa/pxa3xx.c
@@ -362,8 +362,8 @@ static void __init pxa_init_ext_wakeup_irq(set_wake_t fn)
 	int irq;
 
 	for (irq = IRQ_WAKEUP0; irq <= IRQ_WAKEUP1; irq++) {
-		set_irq_chip(irq, &pxa_ext_wakeup_chip);
-		set_irq_handler(irq, handle_edge_irq);
+		irq_set_chip_and_handler(irq, &pxa_ext_wakeup_chip,
+					 handle_edge_irq);
 		set_irq_flags(irq, IRQF_VALID);
 	}
 
diff --git a/arch/arm/mach-pxa/raumfeld.c b/arch/arm/mach-pxa/raumfeld.c
index 47094188e029..cd1861351f75 100644
--- a/arch/arm/mach-pxa/raumfeld.c
+++ b/arch/arm/mach-pxa/raumfeld.c
@@ -597,7 +597,7 @@ static void __init raumfeld_lcd_init(void)
 {
 	int ret;
 
-	set_pxa_fb_info(&raumfeld_sharp_lcd_info);
+	pxa_set_fb_info(NULL, &raumfeld_sharp_lcd_info);
 
 	/* Earlier devices had the backlight regulator controlled
 	 * via PWM, later versions use another controller for that */
diff --git a/arch/arm/mach-pxa/saar.c b/arch/arm/mach-pxa/saar.c
index eb83c89428ef..fee97a935122 100644
--- a/arch/arm/mach-pxa/saar.c
+++ b/arch/arm/mach-pxa/saar.c
@@ -473,7 +473,7 @@ static struct pxafb_mach_info saar_lcd_info = {
 
 static void __init saar_init_lcd(void)
 {
-	set_pxa_fb_info(&saar_lcd_info);
+	pxa_set_fb_info(NULL, &saar_lcd_info);
 }
 #else
 static inline void saar_init_lcd(void) {}
diff --git a/arch/arm/mach-pxa/spitz.c b/arch/arm/mach-pxa/spitz.c
index 38e2c0912b9a..01c576963e94 100644
--- a/arch/arm/mach-pxa/spitz.c
+++ b/arch/arm/mach-pxa/spitz.c
@@ -724,7 +724,7 @@ static struct pxafb_mach_info spitz_pxafb_info = {
 
 static void __init spitz_lcd_init(void)
 {
-	set_pxa_fb_info(&spitz_pxafb_info);
+	pxa_set_fb_info(NULL, &spitz_pxafb_info);
 }
 #else
 static inline void spitz_lcd_init(void) {}
diff --git a/arch/arm/mach-pxa/tavorevb.c b/arch/arm/mach-pxa/tavorevb.c
index 9cecf8366db8..53d4a472b699 100644
--- a/arch/arm/mach-pxa/tavorevb.c
+++ b/arch/arm/mach-pxa/tavorevb.c
@@ -466,7 +466,7 @@ static void __init tavorevb_init_lcd(void)
 {
 	platform_device_register(&tavorevb_backlight_devices[0]);
 	platform_device_register(&tavorevb_backlight_devices[1]);
-	set_pxa_fb_info(&tavorevb_lcd_info);
+	pxa_set_fb_info(NULL, &tavorevb_lcd_info);
 }
 #else
 static inline void tavorevb_init_lcd(void) {}
diff --git a/arch/arm/mach-pxa/time.c b/arch/arm/mach-pxa/time.c
index e7f64d9b4f2d..428da3ff33a5 100644
--- a/arch/arm/mach-pxa/time.c
+++ b/arch/arm/mach-pxa/time.c
@@ -100,7 +100,6 @@ pxa_osmr0_set_mode(enum clock_event_mode mode, struct clock_event_device *dev)
 static struct clock_event_device ckevt_pxa_osmr0 = {
 	.name		= "osmr0",
 	.features	= CLOCK_EVT_FEAT_ONESHOT,
-	.shift		= 32,
 	.rating		= 200,
 	.set_next_event	= pxa_osmr0_set_next_event,
 	.set_mode	= pxa_osmr0_set_mode,
@@ -135,8 +134,8 @@ static void __init pxa_timer_init(void)
 
 	init_sched_clock(&cd, pxa_update_sched_clock, 32, clock_tick_rate);
 
-	ckevt_pxa_osmr0.mult =
-		div_sc(clock_tick_rate, NSEC_PER_SEC, ckevt_pxa_osmr0.shift);
+	clocksource_calc_mult_shift(&cksrc_pxa_oscr0, clock_tick_rate, 4);
+	clockevents_calc_mult_shift(&ckevt_pxa_osmr0, clock_tick_rate, 4);
 	ckevt_pxa_osmr0.max_delta_ns =
 		clockevent_delta2ns(0x7fffffff, &ckevt_pxa_osmr0);
 	ckevt_pxa_osmr0.min_delta_ns =
diff --git a/arch/arm/mach-pxa/tosa.c b/arch/arm/mach-pxa/tosa.c
index 5ad3807af334..5fa145778e7d 100644
--- a/arch/arm/mach-pxa/tosa.c
+++ b/arch/arm/mach-pxa/tosa.c
@@ -35,6 +35,7 @@
 #include <linux/spi/pxa2xx_spi.h>
 #include <linux/input/matrix_keypad.h>
 #include <linux/i2c/pxa-i2c.h>
+#include <linux/usb/gpio_vbus.h>
 
 #include <asm/setup.h>
 #include <asm/mach-types.h>
@@ -240,12 +241,20 @@ static struct scoop_pcmcia_config tosa_pcmcia_config = {
 /*
  * USB Device Controller
  */
-static struct pxa2xx_udc_mach_info udc_info __initdata = {
+static struct gpio_vbus_mach_info tosa_udc_info = {
 	.gpio_pullup		= TOSA_GPIO_USB_PULLUP,
 	.gpio_vbus		= TOSA_GPIO_USB_IN,
 	.gpio_vbus_inverted	= 1,
 };
 
+static struct platform_device tosa_gpio_vbus = {
+	.name	= "gpio-vbus",
+	.id	= -1,
+	.dev	= {
+		.platform_data	= &tosa_udc_info,
+	},
+};
+
 /*
  * MMC/SD Device
  */
@@ -891,6 +900,7 @@ static struct platform_device *devices[] __initdata = {
 	&tosa_bt_device,
 	&sharpsl_rom_device,
 	&wm9712_device,
+	&tosa_gpio_vbus,
 };
 
 static void tosa_poweroff(void)
@@ -937,7 +947,6 @@ static void __init tosa_init(void)
 	dummy = gpiochip_reserve(TOSA_TC6393XB_GPIO_BASE, 16);
 
 	pxa_set_mci_info(&tosa_mci_platform_data);
-	pxa_set_udc_info(&udc_info);
 	pxa_set_ficp_info(&tosa_ficp_platform_data);
 	pxa_set_i2c_info(NULL);
 	pxa_set_ac97_info(NULL);
diff --git a/arch/arm/mach-pxa/trizeps4.c b/arch/arm/mach-pxa/trizeps4.c
index 857bb2e63486..b9cfbebdfe9c 100644
--- a/arch/arm/mach-pxa/trizeps4.c
+++ b/arch/arm/mach-pxa/trizeps4.c
@@ -516,9 +516,9 @@ static void __init trizeps4_init(void)
 	pxa_set_stuart_info(NULL);
 
 	if (0)	/* dont know how to determine LCD */
-		set_pxa_fb_info(&sharp_lcd);
+		pxa_set_fb_info(NULL, &sharp_lcd);
 	else
-		set_pxa_fb_info(&toshiba_lcd);
+		pxa_set_fb_info(NULL, &toshiba_lcd);
 
 	pxa_set_mci_info(&trizeps4_mci_platform_data);
 #ifndef STATUS_LEDS_ON_STUART_PINS
diff --git a/arch/arm/mach-pxa/viper.c b/arch/arm/mach-pxa/viper.c
index 12279214c875..b523f119e0f0 100644
--- a/arch/arm/mach-pxa/viper.c
+++ b/arch/arm/mach-pxa/viper.c
@@ -310,14 +310,14 @@ static void __init viper_init_irq(void)
 	/* setup ISA IRQs */
 	for (level = 0; level < ARRAY_SIZE(viper_isa_irqs); level++) {
 		isa_irq = viper_bit_to_irq(level);
-		set_irq_chip(isa_irq, &viper_irq_chip);
-		set_irq_handler(isa_irq, handle_edge_irq);
+		irq_set_chip_and_handler(isa_irq, &viper_irq_chip,
+					 handle_edge_irq);
 		set_irq_flags(isa_irq, IRQF_VALID | IRQF_PROBE);
 	}
 
-	set_irq_chained_handler(gpio_to_irq(VIPER_CPLD_GPIO),
+	irq_set_chained_handler(gpio_to_irq(VIPER_CPLD_GPIO),
 				viper_irq_handler);
-	set_irq_type(gpio_to_irq(VIPER_CPLD_GPIO), IRQ_TYPE_EDGE_BOTH);
+	irq_set_irq_type(gpio_to_irq(VIPER_CPLD_GPIO), IRQ_TYPE_EDGE_BOTH);
 }
 
 /* Flat Panel */
@@ -932,7 +932,7 @@ static void __init viper_init(void)
 	/* Wake-up serial console */
 	viper_init_serial_gpio();
 
-	set_pxa_fb_info(&fb_info);
+	pxa_set_fb_info(NULL, &fb_info);
 
 	/* v1 hardware cannot use the datacs line */
 	version = viper_hw_version();
diff --git a/arch/arm/mach-pxa/vpac270.c b/arch/arm/mach-pxa/vpac270.c
index e709fd459268..f71d377c8640 100644
--- a/arch/arm/mach-pxa/vpac270.c
+++ b/arch/arm/mach-pxa/vpac270.c
@@ -572,7 +572,7 @@ static void __init vpac270_lcd_init(void)
 	}
 
 	vpac270_lcd_screen.pxafb_lcd_power = vpac270_lcd_power;
-	set_pxa_fb_info(&vpac270_lcd_screen);
+	pxa_set_fb_info(NULL, &vpac270_lcd_screen);
 	return;
 
 err2:
diff --git a/arch/arm/mach-pxa/z2.c b/arch/arm/mach-pxa/z2.c
index aaf883754ef4..fbe9e02e2f9f 100644
--- a/arch/arm/mach-pxa/z2.c
+++ b/arch/arm/mach-pxa/z2.c
@@ -91,13 +91,13 @@ static unsigned long z2_pin_config[] = {
 	GPIO47_STUART_TXD,
 
 	/* Keypad */
-	GPIO100_KP_MKIN_0	| WAKEUP_ON_LEVEL_HIGH,
-	GPIO101_KP_MKIN_1	| WAKEUP_ON_LEVEL_HIGH,
-	GPIO102_KP_MKIN_2	| WAKEUP_ON_LEVEL_HIGH,
-	GPIO34_KP_MKIN_3	| WAKEUP_ON_LEVEL_HIGH,
-	GPIO38_KP_MKIN_4	| WAKEUP_ON_LEVEL_HIGH,
-	GPIO16_KP_MKIN_5	| WAKEUP_ON_LEVEL_HIGH,
-	GPIO17_KP_MKIN_6	| WAKEUP_ON_LEVEL_HIGH,
+	GPIO100_KP_MKIN_0,
+	GPIO101_KP_MKIN_1,
+	GPIO102_KP_MKIN_2,
+	GPIO34_KP_MKIN_3,
+	GPIO38_KP_MKIN_4,
+	GPIO16_KP_MKIN_5,
+	GPIO17_KP_MKIN_6,
 	GPIO103_KP_MKOUT_0,
 	GPIO104_KP_MKOUT_1,
 	GPIO105_KP_MKOUT_2,
@@ -138,8 +138,7 @@ static unsigned long z2_pin_config[] = {
 	GPIO1_GPIO,		/* Power button */
 	GPIO37_GPIO,		/* Headphone detect */
 	GPIO98_GPIO,		/* Lid switch */
-	GPIO14_GPIO,		/* WiFi Reset */
-	GPIO15_GPIO,		/* WiFi Power */
+	GPIO14_GPIO,		/* WiFi Power */
 	GPIO24_GPIO,		/* WiFi CS */
 	GPIO36_GPIO,		/* WiFi IRQ */
 	GPIO88_GPIO,		/* LCD CS */
@@ -204,7 +203,7 @@ static struct platform_pwm_backlight_data z2_backlight_data[] = {
 		/* Keypad Backlight */
 		.pwm_id		= 1,
 		.max_brightness	= 1023,
-		.dft_brightness	= 512,
+		.dft_brightness	= 0,
 		.pwm_period_ns	= 1260320,
 	},
 	[1] = {
@@ -271,7 +270,7 @@ static struct pxafb_mach_info z2_lcd_screen = {
 
 static void __init z2_lcd_init(void)
 {
-	set_pxa_fb_info(&z2_lcd_screen);
+	pxa_set_fb_info(NULL, &z2_lcd_screen);
 }
 #else
 static inline void z2_lcd_init(void) {}
@@ -309,12 +308,12 @@ struct gpio_led z2_gpio_leds[] = {
 	.active_low		= 1,
 }, {
 	.name			= "z2:green:charged",
-	.default_trigger	= "none",
+	.default_trigger	= "mmc0",
 	.gpio			= GPIO85_ZIPITZ2_LED_CHARGED,
 	.active_low		= 1,
 }, {
 	.name			= "z2:amber:charging",
-	.default_trigger	= "none",
+	.default_trigger	= "Z2-charging-or-full",
 	.gpio			= GPIO83_ZIPITZ2_LED_CHARGING,
 	.active_low		= 1,
 },
@@ -427,8 +426,22 @@ static inline void z2_mkp_init(void) {}
  ******************************************************************************/
 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 static struct gpio_keys_button z2_pxa_buttons[] = {
-	{KEY_POWER, GPIO1_ZIPITZ2_POWER_BUTTON, 0, "Power Button" },
-	{KEY_CLOSE, GPIO98_ZIPITZ2_LID_BUTTON, 0, "Lid Button" },
+	{
+		.code		= KEY_POWER,
+		.gpio		= GPIO1_ZIPITZ2_POWER_BUTTON,
+		.active_low	= 0,
+		.desc		= "Power Button",
+		.wakeup		= 1,
+		.type		= EV_KEY,
+	},
+	{
+		.code		= SW_LID,
+		.gpio		= GPIO98_ZIPITZ2_LID_BUTTON,
+		.active_low	= 1,
+		.desc		= "Lid Switch",
+		.wakeup		= 0,
+		.type		= EV_SW,
+	},
 };
 
 static struct gpio_keys_platform_data z2_pxa_keys_data = {
@@ -461,9 +474,9 @@ static struct z2_battery_info batt_chip_info = {
 	.batt_I2C_addr	= 0x55,
 	.batt_I2C_reg	= 2,
 	.charge_gpio	= GPIO0_ZIPITZ2_AC_DETECT,
-	.min_voltage	= 2400000,
-	.max_voltage	= 3700000,
-	.batt_div	= 69,
+	.min_voltage	= 3475000,
+	.max_voltage	= 4190000,
+	.batt_div	= 59,
 	.batt_mult	= 1000000,
 	.batt_tech	= POWER_SUPPLY_TECHNOLOGY_LION,
 	.batt_name	= "Z2",
@@ -497,26 +510,16 @@ static int z2_lbs_spi_setup(struct spi_device *spi)
 {
 	int ret = 0;
 
-	ret = gpio_request(GPIO15_ZIPITZ2_WIFI_POWER, "WiFi Power");
+	ret = gpio_request(GPIO14_ZIPITZ2_WIFI_POWER, "WiFi Power");
 	if (ret)
 		goto err;
 
-	ret = gpio_direction_output(GPIO15_ZIPITZ2_WIFI_POWER, 1);
+	ret = gpio_direction_output(GPIO14_ZIPITZ2_WIFI_POWER, 1);
 	if (ret)
 		goto err2;
 
-	ret = gpio_request(GPIO14_ZIPITZ2_WIFI_RESET, "WiFi Reset");
-	if (ret)
-		goto err2;
-
-	ret = gpio_direction_output(GPIO14_ZIPITZ2_WIFI_RESET, 0);
-	if (ret)
-		goto err3;
-
-	/* Reset the card */
+	/* Wait until card is powered on */
 	mdelay(180);
-	gpio_set_value(GPIO14_ZIPITZ2_WIFI_RESET, 1);
-	mdelay(20);
 
 	spi->bits_per_word = 16;
 	spi->mode = SPI_MODE_2,
@@ -525,22 +528,18 @@ static int z2_lbs_spi_setup(struct spi_device *spi)
 
 	return 0;
 
-err3:
-	gpio_free(GPIO14_ZIPITZ2_WIFI_RESET);
 err2:
-	gpio_free(GPIO15_ZIPITZ2_WIFI_POWER);
+	gpio_free(GPIO14_ZIPITZ2_WIFI_POWER);
 err:
 	return ret;
 };
 
 static int z2_lbs_spi_teardown(struct spi_device *spi)
 {
-	gpio_set_value(GPIO14_ZIPITZ2_WIFI_RESET, 0);
-	gpio_set_value(GPIO15_ZIPITZ2_WIFI_POWER, 0);
-	gpio_free(GPIO14_ZIPITZ2_WIFI_RESET);
-	gpio_free(GPIO15_ZIPITZ2_WIFI_POWER);
-	return 0;
+	gpio_set_value(GPIO14_ZIPITZ2_WIFI_POWER, 0);
+	gpio_free(GPIO14_ZIPITZ2_WIFI_POWER);
 
+	return 0;
 };
 
 static struct pxa2xx_spi_chip z2_lbs_chip_info = {
diff --git a/arch/arm/mach-pxa/zeus.c b/arch/arm/mach-pxa/zeus.c
index 730f51e57c17..00363c7ac182 100644
--- a/arch/arm/mach-pxa/zeus.c
+++ b/arch/arm/mach-pxa/zeus.c
@@ -136,22 +136,23 @@ static void __init zeus_init_irq(void)
 
 	/* Peripheral IRQs. It would be nice to move those inside driver
 	   configuration, but it is not supported at the moment. */
-	set_irq_type(gpio_to_irq(ZEUS_AC97_GPIO),	IRQ_TYPE_EDGE_RISING);
-	set_irq_type(gpio_to_irq(ZEUS_WAKEUP_GPIO),	IRQ_TYPE_EDGE_RISING);
-	set_irq_type(gpio_to_irq(ZEUS_PTT_GPIO),	IRQ_TYPE_EDGE_RISING);
-	set_irq_type(gpio_to_irq(ZEUS_EXTGPIO_GPIO),	IRQ_TYPE_EDGE_FALLING);
-	set_irq_type(gpio_to_irq(ZEUS_CAN_GPIO),	IRQ_TYPE_EDGE_FALLING);
+	irq_set_irq_type(gpio_to_irq(ZEUS_AC97_GPIO), IRQ_TYPE_EDGE_RISING);
+	irq_set_irq_type(gpio_to_irq(ZEUS_WAKEUP_GPIO), IRQ_TYPE_EDGE_RISING);
+	irq_set_irq_type(gpio_to_irq(ZEUS_PTT_GPIO), IRQ_TYPE_EDGE_RISING);
+	irq_set_irq_type(gpio_to_irq(ZEUS_EXTGPIO_GPIO),
+			 IRQ_TYPE_EDGE_FALLING);
+	irq_set_irq_type(gpio_to_irq(ZEUS_CAN_GPIO), IRQ_TYPE_EDGE_FALLING);
 
 	/* Setup ISA IRQs */
 	for (level = 0; level < ARRAY_SIZE(zeus_isa_irqs); level++) {
 		isa_irq = zeus_bit_to_irq(level);
-		set_irq_chip(isa_irq, &zeus_irq_chip);
-		set_irq_handler(isa_irq, handle_edge_irq);
+		irq_set_chip_and_handler(isa_irq, &zeus_irq_chip,
+					 handle_edge_irq);
 		set_irq_flags(isa_irq, IRQF_VALID | IRQF_PROBE);
 	}
 
-	set_irq_type(gpio_to_irq(ZEUS_ISA_GPIO), IRQ_TYPE_EDGE_RISING);
-	set_irq_chained_handler(gpio_to_irq(ZEUS_ISA_GPIO), zeus_irq_handler);
+	irq_set_irq_type(gpio_to_irq(ZEUS_ISA_GPIO), IRQ_TYPE_EDGE_RISING);
+	irq_set_chained_handler(gpio_to_irq(ZEUS_ISA_GPIO), zeus_irq_handler);
 }
 
 
@@ -846,7 +847,7 @@ static void __init zeus_init(void)
 	if (zeus_setup_fb_gpios())
 		pr_err("Failed to setup fb gpios\n");
 	else
-		set_pxa_fb_info(&zeus_fb_info);
+		pxa_set_fb_info(NULL, &zeus_fb_info);
 
 	pxa_set_mci_info(&zeus_mci_platform_data);
 	pxa_set_udc_info(&zeus_udc_info);
diff --git a/arch/arm/mach-pxa/zylonite.c b/arch/arm/mach-pxa/zylonite.c
index a4c784aab764..5821185f77ab 100644
--- a/arch/arm/mach-pxa/zylonite.c
+++ b/arch/arm/mach-pxa/zylonite.c
@@ -208,7 +208,7 @@ static void __init zylonite_init_lcd(void)
 	platform_device_register(&zylonite_backlight_device);
 
 	if (lcd_id & 0x20) {
-		set_pxa_fb_info(&zylonite_sharp_lcd_info);
+		pxa_set_fb_info(NULL, &zylonite_sharp_lcd_info);
 		return;
 	}
 
@@ -220,7 +220,7 @@ static void __init zylonite_init_lcd(void)
 	else
 		zylonite_toshiba_lcd_info.modes = &toshiba_ltm04c380k_mode;
 
-	set_pxa_fb_info(&zylonite_toshiba_lcd_info);
+	pxa_set_fb_info(NULL, &zylonite_toshiba_lcd_info);
 }
 #else
 static inline void zylonite_init_lcd(void) {}
diff --git a/arch/arm/mach-realview/realview_eb.c b/arch/arm/mach-realview/realview_eb.c
index 2ecc1d94284e..10e75faba4c9 100644
--- a/arch/arm/mach-realview/realview_eb.c
+++ b/arch/arm/mach-realview/realview_eb.c
@@ -348,7 +348,7 @@ static void __init gic_init_irq(void)
 
 #ifndef CONFIG_REALVIEW_EB_ARM11MP_REVB
 		/* board GIC, secondary */
-		gic_init(1, 64, __io_address(REALVIEW_EB_GIC_DIST_BASE),
+		gic_init(1, 96, __io_address(REALVIEW_EB_GIC_DIST_BASE),
 			 __io_address(REALVIEW_EB_GIC_CPU_BASE));
 		gic_cascade_irq(1, IRQ_EB11MP_EB_IRQ1);
 #endif
diff --git a/arch/arm/mach-rpc/irq.c b/arch/arm/mach-rpc/irq.c
index d29cd9b737fc..2e1b5309fbab 100644
--- a/arch/arm/mach-rpc/irq.c
+++ b/arch/arm/mach-rpc/irq.c
@@ -133,25 +133,25 @@ void __init rpc_init_irq(void)
 
 		switch (irq) {
 		case 0 ... 7:
-			set_irq_chip(irq, &iomd_a_chip);
-			set_irq_handler(irq, handle_level_irq);
+			irq_set_chip_and_handler(irq, &iomd_a_chip,
+						 handle_level_irq);
 			set_irq_flags(irq, flags);
 			break;
 
 		case 8 ... 15:
-			set_irq_chip(irq, &iomd_b_chip);
-			set_irq_handler(irq, handle_level_irq);
+			irq_set_chip_and_handler(irq, &iomd_b_chip,
+						 handle_level_irq);
 			set_irq_flags(irq, flags);
 			break;
 
 		case 16 ... 21:
-			set_irq_chip(irq, &iomd_dma_chip);
-			set_irq_handler(irq, handle_level_irq);
+			irq_set_chip_and_handler(irq, &iomd_dma_chip,
+						 handle_level_irq);
 			set_irq_flags(irq, flags);
 			break;
 
 		case 64 ... 71:
-			set_irq_chip(irq, &iomd_fiq_chip);
+			irq_set_chip(irq, &iomd_fiq_chip);
 			set_irq_flags(irq, IRQF_VALID);
 			break;
 		}
diff --git a/arch/arm/mach-s3c2410/bast-irq.c b/arch/arm/mach-s3c2410/bast-irq.c
index 606cb6b1cc47..bc53d2d16d1a 100644
--- a/arch/arm/mach-s3c2410/bast-irq.c
+++ b/arch/arm/mach-s3c2410/bast-irq.c
@@ -147,15 +147,15 @@ static __init int bast_irq_init(void)
 
 		__raw_writeb(0x0, BAST_VA_PC104_IRQMASK);
 
-		set_irq_chained_handler(IRQ_ISA, bast_irq_pc104_demux);
+		irq_set_chained_handler(IRQ_ISA, bast_irq_pc104_demux);
 
 		/* register our IRQs */
 
 		for (i = 0; i < 4; i++) {
 			unsigned int irqno = bast_pc104_irqs[i];
 
-			set_irq_chip(irqno, &bast_pc104_chip);
-			set_irq_handler(irqno, handle_level_irq);
+			irq_set_chip_and_handler(irqno, &bast_pc104_chip,
+						 handle_level_irq);
 			set_irq_flags(irqno, IRQF_VALID);
 		}
 	}
diff --git a/arch/arm/mach-s3c2410/include/mach/dma.h b/arch/arm/mach-s3c2410/include/mach/dma.h
index cf68136cc668..b2b2a5bb275e 100644
--- a/arch/arm/mach-s3c2410/include/mach/dma.h
+++ b/arch/arm/mach-s3c2410/include/mach/dma.h
@@ -19,7 +19,7 @@
 #define MAX_DMA_TRANSFER_SIZE   0x100000 /* Data Unit is half word  */
 
 /* We use `virtual` dma channels to hide the fact we have only a limited
- * number of DMA channels, and not of all of them (dependant on the device)
+ * number of DMA channels, and not of all of them (dependent on the device)
  * can be attached to any DMA source. We therefore let the DMA core handle
  * the allocation of hardware channels to clients.
 */
diff --git a/arch/arm/mach-s3c2410/include/mach/regs-mem.h b/arch/arm/mach-s3c2410/include/mach/regs-mem.h
index 7f7c52947963..988a6863e54b 100644
--- a/arch/arm/mach-s3c2410/include/mach/regs-mem.h
+++ b/arch/arm/mach-s3c2410/include/mach/regs-mem.h
@@ -101,7 +101,7 @@
 #define S3C2410_BANKCON_PMC16		(0x03)
 
 /* bank configurations for banks 0..7, note banks
- * 6 and 7 have differnt configurations depending on
+ * 6 and 7 have different configurations depending on
  * the memory type bits */
 
 #define S3C2410_BANKCON_Tacp2		(0x0 << 2)
diff --git a/arch/arm/mach-s3c2410/mach-n30.c b/arch/arm/mach-s3c2410/mach-n30.c
index 66f44440d5d3..079dcaa602d3 100644
--- a/arch/arm/mach-s3c2410/mach-n30.c
+++ b/arch/arm/mach-s3c2410/mach-n30.c
@@ -252,7 +252,7 @@ static struct s3c24xx_led_platdata n30_blue_led_pdata = {
 	.def_trigger	= "",
 };
 
-/* This is the blue LED on the device. Originaly used to indicate GPS activity
+/* This is the blue LED on the device. Originally used to indicate GPS activity
  * by flashing. */
 static struct s3c24xx_led_platdata n35_blue_led_pdata = {
 	.name		= "blue_led",
diff --git a/arch/arm/mach-s3c2412/irq.c b/arch/arm/mach-s3c2412/irq.c
index eddb52ba5b65..f3355d2ec634 100644
--- a/arch/arm/mach-s3c2412/irq.c
+++ b/arch/arm/mach-s3c2412/irq.c
@@ -175,18 +175,18 @@ static int s3c2412_irq_add(struct sys_device *sysdev)
 	unsigned int irqno;
 
 	for (irqno = IRQ_EINT0; irqno <= IRQ_EINT3; irqno++) {
-		set_irq_chip(irqno, &s3c2412_irq_eint0t4);
-		set_irq_handler(irqno, handle_edge_irq);
+		irq_set_chip_and_handler(irqno, &s3c2412_irq_eint0t4,
+					 handle_edge_irq);
 		set_irq_flags(irqno, IRQF_VALID);
 	}
 
 	/* add demux support for CF/SDI */
 
-	set_irq_chained_handler(IRQ_S3C2412_CFSDI, s3c2412_irq_demux_cfsdi);
+	irq_set_chained_handler(IRQ_S3C2412_CFSDI, s3c2412_irq_demux_cfsdi);
 
 	for (irqno = IRQ_S3C2412_SDI; irqno <= IRQ_S3C2412_CF; irqno++) {
-		set_irq_chip(irqno, &s3c2412_irq_cfsdi);
-		set_irq_handler(irqno, handle_level_irq);
+		irq_set_chip_and_handler(irqno, &s3c2412_irq_cfsdi,
+					 handle_level_irq);
 		set_irq_flags(irqno, IRQF_VALID);
 	}
 
@@ -195,7 +195,7 @@ static int s3c2412_irq_add(struct sys_device *sysdev)
 	s3c2412_irq_rtc_chip = s3c_irq_chip;
 	s3c2412_irq_rtc_chip.irq_set_wake = s3c2412_irq_rtc_wake;
 
-	set_irq_chip(IRQ_RTC, &s3c2412_irq_rtc_chip);
+	irq_set_chip(IRQ_RTC, &s3c2412_irq_rtc_chip);
 
 	return 0;
 }
diff --git a/arch/arm/mach-s3c2416/irq.c b/arch/arm/mach-s3c2416/irq.c
index 680fe386aca5..77b38f2381c1 100644
--- a/arch/arm/mach-s3c2416/irq.c
+++ b/arch/arm/mach-s3c2416/irq.c
@@ -202,13 +202,11 @@ static int __init s3c2416_add_sub(unsigned int base,
 {
 	unsigned int irqno;
 
-	set_irq_chip(base, &s3c_irq_level_chip);
-	set_irq_handler(base, handle_level_irq);
-	set_irq_chained_handler(base, demux);
+	irq_set_chip_and_handler(base, &s3c_irq_level_chip, handle_level_irq);
+	irq_set_chained_handler(base, demux);
 
 	for (irqno = start; irqno <= end; irqno++) {
-		set_irq_chip(irqno, chip);
-		set_irq_handler(irqno, handle_level_irq);
+		irq_set_chip_and_handler(irqno, chip, handle_level_irq);
 		set_irq_flags(irqno, IRQF_VALID);
 	}
 
diff --git a/arch/arm/mach-s3c2440/irq.c b/arch/arm/mach-s3c2440/irq.c
index acad4428bef0..eb1cc0f0705e 100644
--- a/arch/arm/mach-s3c2440/irq.c
+++ b/arch/arm/mach-s3c2440/irq.c
@@ -100,13 +100,13 @@ static int s3c2440_irq_add(struct sys_device *sysdev)
 
 	/* add new chained handler for wdt, ac7 */
 
-	set_irq_chip(IRQ_WDT, &s3c_irq_level_chip);
-	set_irq_handler(IRQ_WDT, handle_level_irq);
-	set_irq_chained_handler(IRQ_WDT, s3c_irq_demux_wdtac97);
+	irq_set_chip_and_handler(IRQ_WDT, &s3c_irq_level_chip,
+				 handle_level_irq);
+	irq_set_chained_handler(IRQ_WDT, s3c_irq_demux_wdtac97);
 
 	for (irqno = IRQ_S3C2440_WDT; irqno <= IRQ_S3C2440_AC97; irqno++) {
-		set_irq_chip(irqno, &s3c_irq_wdtac97);
-		set_irq_handler(irqno, handle_level_irq);
+		irq_set_chip_and_handler(irqno, &s3c_irq_wdtac97,
+					 handle_level_irq);
 		set_irq_flags(irqno, IRQF_VALID);
 	}
 
diff --git a/arch/arm/mach-s3c2440/mach-mini2440.c b/arch/arm/mach-s3c2440/mach-mini2440.c
index dfedc9c9e005..dd3120df09fe 100644
--- a/arch/arm/mach-s3c2440/mach-mini2440.c
+++ b/arch/arm/mach-s3c2440/mach-mini2440.c
@@ -155,7 +155,7 @@ static struct s3c2410fb_display mini2440_lcd_cfg[] __initdata = {
 	 * the same timings, however, anything smaller than 1024x768
 	 * will only be displayed in the top left corner of a 1024x768
 	 * XGA output unless you add optional dip switches to the shield.
-	 * Therefore timings for other resolutions have been ommited here.
+	 * Therefore timings for other resolutions have been omitted here.
 	 */
 	[2] = {
 		_LCD_DECLARE(
diff --git a/arch/arm/mach-s3c2440/s3c244x-irq.c b/arch/arm/mach-s3c2440/s3c244x-irq.c
index 83daf4ece764..de07c2feaa32 100644
--- a/arch/arm/mach-s3c2440/s3c244x-irq.c
+++ b/arch/arm/mach-s3c2440/s3c244x-irq.c
@@ -95,19 +95,19 @@ static int s3c244x_irq_add(struct sys_device *sysdev)
 {
 	unsigned int irqno;
 
-	set_irq_chip(IRQ_NFCON, &s3c_irq_level_chip);
-	set_irq_handler(IRQ_NFCON, handle_level_irq);
+	irq_set_chip_and_handler(IRQ_NFCON, &s3c_irq_level_chip,
+				 handle_level_irq);
 	set_irq_flags(IRQ_NFCON, IRQF_VALID);
 
 	/* add chained handler for camera */
 
-	set_irq_chip(IRQ_CAM, &s3c_irq_level_chip);
-	set_irq_handler(IRQ_CAM, handle_level_irq);
-	set_irq_chained_handler(IRQ_CAM, s3c_irq_demux_cam);
+	irq_set_chip_and_handler(IRQ_CAM, &s3c_irq_level_chip,
+				 handle_level_irq);
+	irq_set_chained_handler(IRQ_CAM, s3c_irq_demux_cam);
 
 	for (irqno = IRQ_S3C2440_CAM_C; irqno <= IRQ_S3C2440_CAM_P; irqno++) {
-		set_irq_chip(irqno, &s3c_irq_cam);
-		set_irq_handler(irqno, handle_level_irq);
+		irq_set_chip_and_handler(irqno, &s3c_irq_cam,
+					 handle_level_irq);
 		set_irq_flags(irqno, IRQF_VALID);
 	}
 
diff --git a/arch/arm/mach-s3c2443/irq.c b/arch/arm/mach-s3c2443/irq.c
index c7820f9c1352..83ecb1173fb1 100644
--- a/arch/arm/mach-s3c2443/irq.c
+++ b/arch/arm/mach-s3c2443/irq.c
@@ -230,13 +230,11 @@ static int __init s3c2443_add_sub(unsigned int base,
 {
 	unsigned int irqno;
 
-	set_irq_chip(base, &s3c_irq_level_chip);
-	set_irq_handler(base, handle_level_irq);
-	set_irq_chained_handler(base, demux);
+	irq_set_chip_and_handler(base, &s3c_irq_level_chip, handle_level_irq);
+	irq_set_chained_handler(base, demux);
 
 	for (irqno = start; irqno <= end; irqno++) {
-		set_irq_chip(irqno, chip);
-		set_irq_handler(irqno, handle_level_irq);
+		irq_set_chip_and_handler(irqno, chip, handle_level_irq);
 		set_irq_flags(irqno, IRQF_VALID);
 	}
 
diff --git a/arch/arm/mach-s3c64xx/dma.c b/arch/arm/mach-s3c64xx/dma.c
index c35585cf8c4f..b197171e7d03 100644
--- a/arch/arm/mach-s3c64xx/dma.c
+++ b/arch/arm/mach-s3c64xx/dma.c
@@ -315,7 +315,7 @@ int s3c2410_dma_ctrl(unsigned int channel, enum s3c2410_chan_op op)
 	case S3C2410_DMAOP_FLUSH:
 		return s3c64xx_dma_flush(chan);
 
-	/* belive PAUSE/RESUME are no-ops */
+	/* believe PAUSE/RESUME are no-ops */
 	case S3C2410_DMAOP_PAUSE:
 	case S3C2410_DMAOP_RESUME:
 	case S3C2410_DMAOP_STARTED:
diff --git a/arch/arm/mach-s3c64xx/irq-eint.c b/arch/arm/mach-s3c64xx/irq-eint.c
index 2ead8189da74..4d203be1f4c3 100644
--- a/arch/arm/mach-s3c64xx/irq-eint.c
+++ b/arch/arm/mach-s3c64xx/irq-eint.c
@@ -197,16 +197,15 @@ static int __init s3c64xx_init_irq_eint(void)
 	int irq;
 
 	for (irq = IRQ_EINT(0); irq <= IRQ_EINT(27); irq++) {
-		set_irq_chip(irq, &s3c_irq_eint);
-		set_irq_chip_data(irq, (void *)eint_irq_to_bit(irq));
-		set_irq_handler(irq, handle_level_irq);
+		irq_set_chip_and_handler(irq, &s3c_irq_eint, handle_level_irq);
+		irq_set_chip_data(irq, (void *)eint_irq_to_bit(irq));
 		set_irq_flags(irq, IRQF_VALID);
 	}
 
-	set_irq_chained_handler(IRQ_EINT0_3, s3c_irq_demux_eint0_3);
-	set_irq_chained_handler(IRQ_EINT4_11, s3c_irq_demux_eint4_11);
-	set_irq_chained_handler(IRQ_EINT12_19, s3c_irq_demux_eint12_19);
-	set_irq_chained_handler(IRQ_EINT20_27, s3c_irq_demux_eint20_27);
+	irq_set_chained_handler(IRQ_EINT0_3, s3c_irq_demux_eint0_3);
+	irq_set_chained_handler(IRQ_EINT4_11, s3c_irq_demux_eint4_11);
+	irq_set_chained_handler(IRQ_EINT12_19, s3c_irq_demux_eint12_19);
+	irq_set_chained_handler(IRQ_EINT20_27, s3c_irq_demux_eint20_27);
 
 	return 0;
 }
diff --git a/arch/arm/mach-s5p64x0/cpu.c b/arch/arm/mach-s5p64x0/cpu.c
index b8d02eb4cf30..a5c00952ea35 100644
--- a/arch/arm/mach-s5p64x0/cpu.c
+++ b/arch/arm/mach-s5p64x0/cpu.c
@@ -119,7 +119,7 @@ void __init s5p6450_map_io(void)
 	s3c_adc_setname("s3c64xx-adc");
 
 	iotable_init(s5p64x0_iodesc, ARRAY_SIZE(s5p64x0_iodesc));
-	iotable_init(s5p6450_iodesc, ARRAY_SIZE(s5p6440_iodesc));
+	iotable_init(s5p6450_iodesc, ARRAY_SIZE(s5p6450_iodesc));
 }
 
 /*
diff --git a/arch/arm/mach-s5pc100/include/mach/regs-fb.h b/arch/arm/mach-s5pc100/include/mach/regs-fb.h
index 4be4cc9abf75..07aa4d6054fe 100644
--- a/arch/arm/mach-s5pc100/include/mach/regs-fb.h
+++ b/arch/arm/mach-s5pc100/include/mach/regs-fb.h
@@ -29,7 +29,7 @@
 #define WPALCON_H					(0x19c)
 #define WPALCON_L					(0x1a0)
 
-/* Pallete contro for WPAL0 and WPAL1 is the same as in S3C64xx, but
+/* Palette control for WPAL0 and WPAL1 is the same as in S3C64xx, but
  * different for WPAL2-4
  */
 /* In WPALCON_L (aka WPALCON) */
diff --git a/arch/arm/mach-s5pc100/setup-sdhci.c b/arch/arm/mach-s5pc100/setup-sdhci.c
index f16946e456e9..be25879bb2ee 100644
--- a/arch/arm/mach-s5pc100/setup-sdhci.c
+++ b/arch/arm/mach-s5pc100/setup-sdhci.c
@@ -40,7 +40,7 @@ void s5pc100_setup_sdhci0_cfg_card(struct platform_device *dev,
 {
 	u32 ctrl2, ctrl3;
 
-	/* don't need to alter anything acording to card-type */
+	/* don't need to alter anything according to card-type */
 
 	writel(S3C64XX_SDHCI_CONTROL4_DRIVE_9mA, r + S3C64XX_SDHCI_CONTROL4);
 
diff --git a/arch/arm/mach-s5pv210/include/mach/gpio.h b/arch/arm/mach-s5pv210/include/mach/gpio.h
index 1f4b595534c2..a5a1e331f8ed 100644
--- a/arch/arm/mach-s5pv210/include/mach/gpio.h
+++ b/arch/arm/mach-s5pv210/include/mach/gpio.h
@@ -18,7 +18,7 @@
 #define gpio_cansleep	__gpio_cansleep
 #define gpio_to_irq	__gpio_to_irq
 
-/* Practically, GPIO banks upto MP03 are the configurable gpio banks */
+/* Practically, GPIO banks up to MP03 are the configurable gpio banks */
 
 /* GPIO bank sizes */
 #define S5PV210_GPIO_A0_NR	(8)
diff --git a/arch/arm/mach-s5pv210/include/mach/irqs.h b/arch/arm/mach-s5pv210/include/mach/irqs.h
index 26710b35ef87..b9f9ec33384d 100644
--- a/arch/arm/mach-s5pv210/include/mach/irqs.h
+++ b/arch/arm/mach-s5pv210/include/mach/irqs.h
@@ -99,9 +99,9 @@
 #define IRQ_TC			IRQ_PENDN
 #define IRQ_KEYPAD		S5P_IRQ_VIC2(25)
 #define IRQ_CG			S5P_IRQ_VIC2(26)
-#define IRQ_SEC			S5P_IRQ_VIC2(27)
-#define IRQ_SECRX		S5P_IRQ_VIC2(28)
-#define IRQ_SECTX		S5P_IRQ_VIC2(29)
+#define IRQ_SSS_INT		S5P_IRQ_VIC2(27)
+#define IRQ_SSS_HASH		S5P_IRQ_VIC2(28)
+#define IRQ_PCM2		S5P_IRQ_VIC2(29)
 #define IRQ_SDMIRQ		S5P_IRQ_VIC2(30)
 #define IRQ_SDMFIQ		S5P_IRQ_VIC2(31)
 
diff --git a/arch/arm/mach-s5pv210/mach-smdkv210.c b/arch/arm/mach-s5pv210/mach-smdkv210.c
index bc08ac42e7cc..c6a9e86c2d5c 100644
--- a/arch/arm/mach-s5pv210/mach-smdkv210.c
+++ b/arch/arm/mach-s5pv210/mach-smdkv210.c
@@ -44,7 +44,6 @@
 #include <plat/keypad.h>
 #include <plat/pm.h>
 #include <plat/fb.h>
-#include <plat/gpio-cfg.h>
 #include <plat/s5p-time.h>
 
 /* Following are default values for UCON, ULCON and UFCON UART registers */
diff --git a/arch/arm/mach-s5pv210/setup-sdhci-gpio.c b/arch/arm/mach-s5pv210/setup-sdhci-gpio.c
index 746777d56df9..3e3ac05bb7b1 100644
--- a/arch/arm/mach-s5pv210/setup-sdhci-gpio.c
+++ b/arch/arm/mach-s5pv210/setup-sdhci-gpio.c
@@ -32,10 +32,10 @@ void s5pv210_setup_sdhci0_cfg_gpio(struct platform_device *dev, int width)
 
 	switch (width) {
 	case 8:
-		/* GPG1[3:6] special-funtion 3 */
+		/* GPG1[3:6] special-function 3 */
 		s3c_gpio_cfgrange_nopull(S5PV210_GPG1(3), 4, S3C_GPIO_SFN(3));
 	case 4:
-		/* GPG0[3:6] special-funtion 2 */
+		/* GPG0[3:6] special-function 2 */
 		s3c_gpio_cfgrange_nopull(S5PV210_GPG0(3), 4, S3C_GPIO_SFN(2));
 	default:
 		break;
diff --git a/arch/arm/mach-s5pv210/setup-sdhci.c b/arch/arm/mach-s5pv210/setup-sdhci.c
index c32e202731c1..a83b6c909f6b 100644
--- a/arch/arm/mach-s5pv210/setup-sdhci.c
+++ b/arch/arm/mach-s5pv210/setup-sdhci.c
@@ -38,7 +38,7 @@ void s5pv210_setup_sdhci_cfg_card(struct platform_device *dev,
 {
 	u32 ctrl2, ctrl3;
 
-	/* don't need to alter anything acording to card-type */
+	/* don't need to alter anything according to card-type */
 
 	writel(S3C64XX_SDHCI_CONTROL4_DRIVE_9mA, r + S3C64XX_SDHCI_CONTROL4);
 
diff --git a/arch/arm/mach-sa1100/Makefile b/arch/arm/mach-sa1100/Makefile
index e697691eed28..41252d22e659 100644
--- a/arch/arm/mach-sa1100/Makefile
+++ b/arch/arm/mach-sa1100/Makefile
@@ -50,7 +50,7 @@ led-$(CONFIG_SA1100_SIMPAD)		+= leds-simpad.o
 # LEDs support
 obj-$(CONFIG_LEDS) += $(led-y)
 
-# Miscelaneous functions
+# Miscellaneous functions
 obj-$(CONFIG_PM)			+= pm.o sleep.o
 obj-$(CONFIG_SA1100_SSP)		+= ssp.o
 
diff --git a/arch/arm/mach-sa1100/cerf.c b/arch/arm/mach-sa1100/cerf.c
index 98d780608c7e..7f3da4b11ec9 100644
--- a/arch/arm/mach-sa1100/cerf.c
+++ b/arch/arm/mach-sa1100/cerf.c
@@ -96,7 +96,7 @@ static struct resource cerf_flash_resource = {
 static void __init cerf_init_irq(void)
 {
 	sa1100_init_irq();
-	set_irq_type(CERF_ETH_IRQ, IRQ_TYPE_EDGE_RISING);
+	irq_set_irq_type(CERF_ETH_IRQ, IRQ_TYPE_EDGE_RISING);
 }
 
 static struct map_desc cerf_io_desc[] __initdata = {
diff --git a/arch/arm/mach-sa1100/cpu-sa1100.c b/arch/arm/mach-sa1100/cpu-sa1100.c
index 07d4e8ba3719..aaa8acf76b7b 100644
--- a/arch/arm/mach-sa1100/cpu-sa1100.c
+++ b/arch/arm/mach-sa1100/cpu-sa1100.c
@@ -68,7 +68,7 @@
  * clock change in ROM and jump to that code from the kernel. The main
  * disadvantage is that the ROM has to be modified, which is not
  * possible on all SA-1100 platforms. Another disadvantage is that
- * jumping to ROM makes clock switching unecessary complicated.
+ * jumping to ROM makes clock switching unnecessary complicated.
  *
  * The idea behind this driver is that the memory configuration can be
  * changed while running from DRAM (even with interrupts turned on!)
diff --git a/arch/arm/mach-sa1100/include/mach/SA-1100.h b/arch/arm/mach-sa1100/include/mach/SA-1100.h
index 4f7ea012e1e5..bae8296f5dbf 100644
--- a/arch/arm/mach-sa1100/include/mach/SA-1100.h
+++ b/arch/arm/mach-sa1100/include/mach/SA-1100.h
@@ -1794,7 +1794,7 @@
                 	(DDAR_DevRd + DDAR_Brst4 + DDAR_16BitDev + \
                 	 DDAR_Ser4SSPRc + DDAR_DevAdd (__PREG(Ser4SSDR)))
 
-#define DCSR_RUN	0x00000001	/* DMA RUNing                      */
+#define DCSR_RUN	0x00000001	/* DMA running                     */
 #define DCSR_IE 	0x00000002	/* DMA Interrupt Enable            */
 #define DCSR_ERROR	0x00000004	/* DMA ERROR                       */
 #define DCSR_DONEA	0x00000008	/* DONE DMA transfer buffer A      */
diff --git a/arch/arm/mach-sa1100/irq.c b/arch/arm/mach-sa1100/irq.c
index 3d85dfad9c1f..423ddb3d65e9 100644
--- a/arch/arm/mach-sa1100/irq.c
+++ b/arch/arm/mach-sa1100/irq.c
@@ -323,28 +323,28 @@ void __init sa1100_init_irq(void)
 	ICCR = 1;
 
 	for (irq = 0; irq <= 10; irq++) {
-		set_irq_chip(irq, &sa1100_low_gpio_chip);
-		set_irq_handler(irq, handle_edge_irq);
+		irq_set_chip_and_handler(irq, &sa1100_low_gpio_chip,
+					 handle_edge_irq);
 		set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
 	}
 
 	for (irq = 12; irq <= 31; irq++) {
-		set_irq_chip(irq, &sa1100_normal_chip);
-		set_irq_handler(irq, handle_level_irq);
+		irq_set_chip_and_handler(irq, &sa1100_normal_chip,
+					 handle_level_irq);
 		set_irq_flags(irq, IRQF_VALID);
 	}
 
 	for (irq = 32; irq <= 48; irq++) {
-		set_irq_chip(irq, &sa1100_high_gpio_chip);
-		set_irq_handler(irq, handle_edge_irq);
+		irq_set_chip_and_handler(irq, &sa1100_high_gpio_chip,
+					 handle_edge_irq);
 		set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
 	}
 
 	/*
 	 * Install handler for GPIO 11-27 edge detect interrupts
 	 */
-	set_irq_chip(IRQ_GPIO11_27, &sa1100_normal_chip);
-	set_irq_chained_handler(IRQ_GPIO11_27, sa1100_high_gpio_handler);
+	irq_set_chip(IRQ_GPIO11_27, &sa1100_normal_chip);
+	irq_set_chained_handler(IRQ_GPIO11_27, sa1100_high_gpio_handler);
 
 	sa1100_init_gpio();
 }
diff --git a/arch/arm/mach-sa1100/jornada720_ssp.c b/arch/arm/mach-sa1100/jornada720_ssp.c
index 9d490c66891c..f50b00bd18a0 100644
--- a/arch/arm/mach-sa1100/jornada720_ssp.c
+++ b/arch/arm/mach-sa1100/jornada720_ssp.c
@@ -29,7 +29,7 @@ static unsigned long jornada_ssp_flags;
 /**
  * jornada_ssp_reverse - reverses input byte
  *
- * we need to reverse all data we recieve from the mcu due to its physical location
+ * we need to reverse all data we receive from the mcu due to its physical location
  * returns : 01110111 -> 11101110
  */
 u8 inline jornada_ssp_reverse(u8 byte)
@@ -179,7 +179,7 @@ static int __devinit jornada_ssp_probe(struct platform_device *dev)
 
 static int jornada_ssp_remove(struct platform_device *dev)
 {
-	/* Note that this doesnt actually remove the driver, since theres nothing to remove
+	/* Note that this doesn't actually remove the driver, since theres nothing to remove
 	 * It just makes sure everything is turned off */
 	GPSR = GPIO_GPIO25;
 	ssp_exit();
diff --git a/arch/arm/mach-sa1100/neponset.c b/arch/arm/mach-sa1100/neponset.c
index 4aad01f73660..b4fa53a1427e 100644
--- a/arch/arm/mach-sa1100/neponset.c
+++ b/arch/arm/mach-sa1100/neponset.c
@@ -145,8 +145,8 @@ static int __devinit neponset_probe(struct platform_device *dev)
 	/*
 	 * Install handler for GPIO25.
 	 */
-	set_irq_type(IRQ_GPIO25, IRQ_TYPE_EDGE_RISING);
-	set_irq_chained_handler(IRQ_GPIO25, neponset_irq_handler);
+	irq_set_irq_type(IRQ_GPIO25, IRQ_TYPE_EDGE_RISING);
+	irq_set_chained_handler(IRQ_GPIO25, neponset_irq_handler);
 
 	/*
 	 * We would set IRQ_GPIO25 to be a wake-up IRQ, but
@@ -161,9 +161,9 @@ static int __devinit neponset_probe(struct platform_device *dev)
 	 * Setup other Neponset IRQs.  SA1111 will be done by the
 	 * generic SA1111 code.
 	 */
-	set_irq_handler(IRQ_NEPONSET_SMC9196, handle_simple_irq);
+	irq_set_handler(IRQ_NEPONSET_SMC9196, handle_simple_irq);
 	set_irq_flags(IRQ_NEPONSET_SMC9196, IRQF_VALID | IRQF_PROBE);
-	set_irq_handler(IRQ_NEPONSET_USAR, handle_simple_irq);
+	irq_set_handler(IRQ_NEPONSET_USAR, handle_simple_irq);
 	set_irq_flags(IRQ_NEPONSET_USAR, IRQF_VALID | IRQF_PROBE);
 
 	/*
diff --git a/arch/arm/mach-sa1100/pleb.c b/arch/arm/mach-sa1100/pleb.c
index 42b80400c100..65161f2bea29 100644
--- a/arch/arm/mach-sa1100/pleb.c
+++ b/arch/arm/mach-sa1100/pleb.c
@@ -142,7 +142,7 @@ static void __init pleb_map_io(void)
 
 	GPDR &= ~GPIO_ETH0_IRQ;
 
-	set_irq_type(GPIO_ETH0_IRQ, IRQ_TYPE_EDGE_FALLING);
+	irq_set_irq_type(GPIO_ETH0_IRQ, IRQ_TYPE_EDGE_FALLING);
 }
 
 MACHINE_START(PLEB, "PLEB")
diff --git a/arch/arm/mach-shark/irq.c b/arch/arm/mach-shark/irq.c
index 831fc66dfa4d..5dce13e429f3 100644
--- a/arch/arm/mach-shark/irq.c
+++ b/arch/arm/mach-shark/irq.c
@@ -80,8 +80,7 @@ void __init shark_init_irq(void)
 	int irq;
 
 	for (irq = 0; irq < NR_IRQS; irq++) {
-		set_irq_chip(irq, &fb_chip);
-		set_irq_handler(irq, handle_edge_irq);
+		irq_set_chip_and_handler(irq, &fb_chip, handle_edge_irq);
 		set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
 	}
 
diff --git a/arch/arm/mach-shmobile/board-ap4evb.c b/arch/arm/mach-shmobile/board-ap4evb.c
index a94f29da5d30..1e35fa976d64 100644
--- a/arch/arm/mach-shmobile/board-ap4evb.c
+++ b/arch/arm/mach-shmobile/board-ap4evb.c
@@ -24,9 +24,9 @@
 #include <linux/irq.h>
 #include <linux/platform_device.h>
 #include <linux/delay.h>
-#include <linux/mfd/sh_mobile_sdhi.h>
 #include <linux/mfd/tmio.h>
 #include <linux/mmc/host.h>
+#include <linux/mmc/sh_mobile_sdhi.h>
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/partitions.h>
 #include <linux/mtd/physmap.h>
@@ -312,7 +312,7 @@ static struct resource sdhi0_resources[] = {
 	[0] = {
 		.name	= "SDHI0",
 		.start  = 0xe6850000,
-		.end    = 0xe68501ff,
+		.end    = 0xe68500ff,
 		.flags  = IORESOURCE_MEM,
 	},
 	[1] = {
@@ -345,7 +345,7 @@ static struct resource sdhi1_resources[] = {
 	[0] = {
 		.name	= "SDHI1",
 		.start  = 0xe6860000,
-		.end    = 0xe68601ff,
+		.end    = 0xe68600ff,
 		.flags  = IORESOURCE_MEM,
 	},
 	[1] = {
@@ -947,7 +947,7 @@ static struct platform_device *ap4evb_devices[] __initdata = {
 	&ap4evb_camera,
 };
 
-static int __init hdmi_init_pm_clock(void)
+static void __init hdmi_init_pm_clock(void)
 {
 	struct clk *hdmi_ick = clk_get(&hdmi_device.dev, "ick");
 	int ret;
@@ -988,20 +988,15 @@ static int __init hdmi_init_pm_clock(void)
 	pr_debug("PLLC2 set frequency %lu\n", rate);
 
 	ret = clk_set_parent(hdmi_ick, &sh7372_pllc2_clk);
-	if (ret < 0) {
+	if (ret < 0)
 		pr_err("Cannot set HDMI parent: %d\n", ret);
-		goto out;
-	}
 
 out:
 	if (!IS_ERR(hdmi_ick))
 		clk_put(hdmi_ick);
-	return ret;
 }
 
-device_initcall(hdmi_init_pm_clock);
-
-static int __init fsi_init_pm_clock(void)
+static void __init fsi_init_pm_clock(void)
 {
 	struct clk *fsia_ick;
 	int ret;
@@ -1010,7 +1005,7 @@ static int __init fsi_init_pm_clock(void)
 	if (IS_ERR(fsia_ick)) {
 		ret = PTR_ERR(fsia_ick);
 		pr_err("Cannot get FSI ICK: %d\n", ret);
-		return ret;
+		return;
 	}
 
 	ret = clk_set_parent(fsia_ick, &sh7372_fsiack_clk);
@@ -1018,10 +1013,7 @@ static int __init fsi_init_pm_clock(void)
 		pr_err("Cannot set FSI-A parent: %d\n", ret);
 
 	clk_put(fsia_ick);
-
-	return ret;
 }
-device_initcall(fsi_init_pm_clock);
 
 /*
  * FIXME !!
@@ -1255,7 +1247,7 @@ static void __init ap4evb_init(void)
 	gpio_request(GPIO_FN_KEYIN4,     NULL);
 
 	/* enable TouchScreen */
-	set_irq_type(IRQ28, IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(IRQ28, IRQ_TYPE_LEVEL_LOW);
 
 	tsc_device.irq = IRQ28;
 	i2c_register_board_info(1, &tsc_device, 1);
@@ -1311,7 +1303,7 @@ static void __init ap4evb_init(void)
 	lcdc_info.ch[0].lcd_size_cfg.height	= 91;
 
 	/* enable TouchScreen */
-	set_irq_type(IRQ7, IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(IRQ7, IRQ_TYPE_LEVEL_LOW);
 
 	tsc_device.irq = IRQ7;
 	i2c_register_board_info(0, &tsc_device, 1);
@@ -1348,6 +1340,9 @@ static void __init ap4evb_init(void)
 	__raw_writel(srcr4 & ~(1 << 13), SRCR4);
 
 	platform_add_devices(ap4evb_devices, ARRAY_SIZE(ap4evb_devices));
+
+	hdmi_init_pm_clock();
+	fsi_init_pm_clock();
 }
 
 static void __init ap4evb_timer_init(void)
diff --git a/arch/arm/mach-shmobile/board-g4evm.c b/arch/arm/mach-shmobile/board-g4evm.c
index dee3e9231fb9..c87a7b7c5832 100644
--- a/arch/arm/mach-shmobile/board-g4evm.c
+++ b/arch/arm/mach-shmobile/board-g4evm.c
@@ -31,7 +31,7 @@
 #include <linux/input.h>
 #include <linux/input/sh_keysc.h>
 #include <linux/mmc/host.h>
-#include <linux/mfd/sh_mobile_sdhi.h>
+#include <linux/mmc/sh_mobile_sdhi.h>
 #include <linux/gpio.h>
 #include <mach/sh7377.h>
 #include <mach/common.h>
@@ -205,7 +205,7 @@ static struct resource sdhi0_resources[] = {
 	[0] = {
 		.name	= "SDHI0",
 		.start  = 0xe6d50000,
-		.end    = 0xe6d501ff,
+		.end    = 0xe6d50nff,
 		.flags  = IORESOURCE_MEM,
 	},
 	[1] = {
@@ -232,7 +232,7 @@ static struct resource sdhi1_resources[] = {
 	[0] = {
 		.name	= "SDHI1",
 		.start  = 0xe6d60000,
-		.end    = 0xe6d601ff,
+		.end    = 0xe6d600ff,
 		.flags  = IORESOURCE_MEM,
 	},
 	[1] = {
diff --git a/arch/arm/mach-shmobile/board-mackerel.c b/arch/arm/mach-shmobile/board-mackerel.c
index 49bc07482179..7da2ca24229d 100644
--- a/arch/arm/mach-shmobile/board-mackerel.c
+++ b/arch/arm/mach-shmobile/board-mackerel.c
@@ -32,10 +32,10 @@
 #include <linux/io.h>
 #include <linux/i2c.h>
 #include <linux/leds.h>
-#include <linux/mfd/sh_mobile_sdhi.h>
 #include <linux/mfd/tmio.h>
 #include <linux/mmc/host.h>
 #include <linux/mmc/sh_mmcif.h>
+#include <linux/mmc/sh_mobile_sdhi.h>
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/partitions.h>
 #include <linux/mtd/physmap.h>
@@ -423,7 +423,7 @@ static struct platform_device fsi_hdmi_device = {
 	.name		= "sh_fsi2_b_hdmi",
 };
 
-static int __init hdmi_init_pm_clock(void)
+static void __init hdmi_init_pm_clock(void)
 {
 	struct clk *hdmi_ick = clk_get(&hdmi_device.dev, "ick");
 	int ret;
@@ -467,17 +467,13 @@ static int __init hdmi_init_pm_clock(void)
 	pr_debug("PLLC2 set frequency %lu\n", rate);
 
 	ret = clk_set_parent(hdmi_ick, &sh7372_pllc2_clk);
-	if (ret < 0) {
+	if (ret < 0)
 		pr_err("Cannot set HDMI parent: %d\n", ret);
-		goto out;
-	}
 
 out:
 	if (!IS_ERR(hdmi_ick))
 		clk_put(hdmi_ick);
-	return ret;
 }
-device_initcall(hdmi_init_pm_clock);
 
 /* USB1 (Host) */
 static void usb1_host_port_power(int port, int power)
@@ -690,7 +686,7 @@ static struct resource sdhi0_resources[] = {
 	[0] = {
 		.name	= "SDHI0",
 		.start	= 0xe6850000,
-		.end	= 0xe68501ff,
+		.end	= 0xe68500ff,
 		.flags	= IORESOURCE_MEM,
 	},
 	[1] = {
@@ -725,7 +721,7 @@ static struct resource sdhi1_resources[] = {
 	[0] = {
 		.name	= "SDHI1",
 		.start	= 0xe6860000,
-		.end	= 0xe68601ff,
+		.end	= 0xe68600ff,
 		.flags	= IORESOURCE_MEM,
 	},
 	[1] = {
@@ -768,7 +764,7 @@ static struct resource sdhi2_resources[] = {
 	[0] = {
 		.name	= "SDHI2",
 		.start	= 0xe6870000,
-		.end	= 0xe68701ff,
+		.end	= 0xe68700ff,
 		.flags	= IORESOURCE_MEM,
 	},
 	[1] = {
@@ -1124,15 +1120,15 @@ static void __init mackerel_init(void)
 
 	/* enable Keypad */
 	gpio_request(GPIO_FN_IRQ9_42,	NULL);
-	set_irq_type(IRQ9, IRQ_TYPE_LEVEL_HIGH);
+	irq_set_irq_type(IRQ9, IRQ_TYPE_LEVEL_HIGH);
 
 	/* enable Touchscreen */
 	gpio_request(GPIO_FN_IRQ7_40,	NULL);
-	set_irq_type(IRQ7, IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(IRQ7, IRQ_TYPE_LEVEL_LOW);
 
 	/* enable Accelerometer */
 	gpio_request(GPIO_FN_IRQ21,	NULL);
-	set_irq_type(IRQ21, IRQ_TYPE_LEVEL_HIGH);
+	irq_set_irq_type(IRQ21, IRQ_TYPE_LEVEL_HIGH);
 
 	/* enable SDHI0 */
 	gpio_request(GPIO_FN_SDHICD0, NULL);
@@ -1218,6 +1214,8 @@ static void __init mackerel_init(void)
 	sh7372_add_standard_devices();
 
 	platform_add_devices(mackerel_devices, ARRAY_SIZE(mackerel_devices));
+
+	hdmi_init_pm_clock();
 }
 
 static void __init mackerel_timer_init(void)
diff --git a/arch/arm/mach-shmobile/include/mach/mmc.h b/arch/arm/mach-shmobile/include/mach/mmc.h
index e11560a525a1..21a59db638bb 100644
--- a/arch/arm/mach-shmobile/include/mach/mmc.h
+++ b/arch/arm/mach-shmobile/include/mach/mmc.h
@@ -9,7 +9,7 @@
 
 #ifdef CONFIG_MACH_AP4EVB
 #include "mach/mmc-ap4eb.h"
-#elif CONFIG_MACH_MACKEREL
+#elif defined(CONFIG_MACH_MACKEREL)
 #include "mach/mmc-mackerel.h"
 #else
 #error "unsupported board."
diff --git a/arch/arm/mach-shmobile/include/mach/zboot.h b/arch/arm/mach-shmobile/include/mach/zboot.h
index 6d6a205bcf90..9320aff0a20f 100644
--- a/arch/arm/mach-shmobile/include/mach/zboot.h
+++ b/arch/arm/mach-shmobile/include/mach/zboot.h
@@ -13,7 +13,7 @@
 #ifdef CONFIG_MACH_AP4EVB
 #define MACH_TYPE	MACH_TYPE_AP4EVB
 #include "mach/head-ap4evb.txt"
-#elif CONFIG_MACH_MACKEREL
+#elif defined(CONFIG_MACH_MACKEREL)
 #define MACH_TYPE	MACH_TYPE_MACKEREL
 #include "mach/head-mackerel.txt"
 #else
diff --git a/arch/arm/mach-shmobile/intc-sh7367.c b/arch/arm/mach-shmobile/intc-sh7367.c
index 2fe9704d5ea1..cc442d198cdc 100644
--- a/arch/arm/mach-shmobile/intc-sh7367.c
+++ b/arch/arm/mach-shmobile/intc-sh7367.c
@@ -421,7 +421,7 @@ static struct intc_desc intcs_desc __initdata = {
 
 static void intcs_demux(unsigned int irq, struct irq_desc *desc)
 {
-	void __iomem *reg = (void *)get_irq_data(irq);
+	void __iomem *reg = (void *)irq_get_handler_data(irq);
 	unsigned int evtcodeas = ioread32(reg);
 
 	generic_handle_irq(intcs_evt2irq(evtcodeas));
@@ -435,6 +435,6 @@ void __init sh7367_init_irq(void)
 	register_intc_controller(&intcs_desc);
 
 	/* demux using INTEVTSA */
-	set_irq_data(evt2irq(0xf80), (void *)intevtsa);
-	set_irq_chained_handler(evt2irq(0xf80), intcs_demux);
+	irq_set_handler_data(evt2irq(0xf80), (void *)intevtsa);
+	irq_set_chained_handler(evt2irq(0xf80), intcs_demux);
 }
diff --git a/arch/arm/mach-shmobile/intc-sh7372.c b/arch/arm/mach-shmobile/intc-sh7372.c
index ca5f9d17b39a..7a4960f9c1e3 100644
--- a/arch/arm/mach-shmobile/intc-sh7372.c
+++ b/arch/arm/mach-shmobile/intc-sh7372.c
@@ -601,7 +601,7 @@ static struct intc_desc intcs_desc __initdata = {
 
 static void intcs_demux(unsigned int irq, struct irq_desc *desc)
 {
-	void __iomem *reg = (void *)get_irq_data(irq);
+	void __iomem *reg = (void *)irq_get_handler_data(irq);
 	unsigned int evtcodeas = ioread32(reg);
 
 	generic_handle_irq(intcs_evt2irq(evtcodeas));
@@ -615,6 +615,6 @@ void __init sh7372_init_irq(void)
 	register_intc_controller(&intcs_desc);
 
 	/* demux using INTEVTSA */
-	set_irq_data(evt2irq(0xf80), (void *)intevtsa);
-	set_irq_chained_handler(evt2irq(0xf80), intcs_demux);
+	irq_set_handler_data(evt2irq(0xf80), (void *)intevtsa);
+	irq_set_chained_handler(evt2irq(0xf80), intcs_demux);
 }
diff --git a/arch/arm/mach-shmobile/intc-sh7377.c b/arch/arm/mach-shmobile/intc-sh7377.c
index dd568382cc9f..fe45154ce660 100644
--- a/arch/arm/mach-shmobile/intc-sh7377.c
+++ b/arch/arm/mach-shmobile/intc-sh7377.c
@@ -626,7 +626,7 @@ static struct intc_desc intcs_desc __initdata = {
 
 static void intcs_demux(unsigned int irq, struct irq_desc *desc)
 {
-	void __iomem *reg = (void *)get_irq_data(irq);
+	void __iomem *reg = (void *)irq_get_handler_data(irq);
 	unsigned int evtcodeas = ioread32(reg);
 
 	generic_handle_irq(intcs_evt2irq(evtcodeas));
@@ -641,6 +641,6 @@ void __init sh7377_init_irq(void)
 	register_intc_controller(&intcs_desc);
 
 	/* demux using INTEVTSA */
-	set_irq_data(evt2irq(INTCS_INTVECT), (void *)intevtsa);
-	set_irq_chained_handler(evt2irq(INTCS_INTVECT), intcs_demux);
+	irq_set_handler_data(evt2irq(INTCS_INTVECT), (void *)intevtsa);
+	irq_set_chained_handler(evt2irq(INTCS_INTVECT), intcs_demux);
 }
diff --git a/arch/arm/mach-tcc8k/irq.c b/arch/arm/mach-tcc8k/irq.c
index aa9231f4fc6e..209fa5c65d4c 100644
--- a/arch/arm/mach-tcc8k/irq.c
+++ b/arch/arm/mach-tcc8k/irq.c
@@ -102,10 +102,10 @@ void __init tcc8k_init_irq(void)
 
 	for (irqno = 0; irqno < NR_IRQS; irqno++) {
 		if (irqno < 32)
-			set_irq_chip(irqno, &tcc8000_irq_chip0);
+			irq_set_chip(irqno, &tcc8000_irq_chip0);
 		else
-			set_irq_chip(irqno, &tcc8000_irq_chip1);
-		set_irq_handler(irqno, handle_level_irq);
+			irq_set_chip(irqno, &tcc8000_irq_chip1);
+		irq_set_handler(irqno, handle_level_irq);
 		set_irq_flags(irqno, IRQF_VALID);
 	}
 }
diff --git a/arch/arm/mach-tegra/dma.c b/arch/arm/mach-tegra/dma.c
index e945ae28ee77..f4ef5eb317bd 100644
--- a/arch/arm/mach-tegra/dma.c
+++ b/arch/arm/mach-tegra/dma.c
@@ -223,7 +223,7 @@ int tegra_dma_dequeue_req(struct tegra_dma_channel *ch,
 	 *  - Change the source selector to invalid to stop the DMA from
 	 *    FIFO to memory.
 	 *  - Read the status register to know the number of pending
-	 *    bytes to be transfered.
+	 *    bytes to be transferred.
 	 *  - Finally stop or program the DMA to the next buffer in the
 	 *    list.
 	 */
@@ -244,7 +244,7 @@ int tegra_dma_dequeue_req(struct tegra_dma_channel *ch,
 	if (status & STA_BUSY)
 		req->bytes_transferred -= to_transfer;
 
-	/* In continous transfer mode, DMA only tracks the count of the
+	/* In continuous transfer mode, DMA only tracks the count of the
 	 * half DMA buffer. So, if the DMA already finished half the DMA
 	 * then add the half buffer to the completed count.
 	 *
diff --git a/arch/arm/mach-tegra/gpio.c b/arch/arm/mach-tegra/gpio.c
index 12090a2cf3e0..76a3f654220f 100644
--- a/arch/arm/mach-tegra/gpio.c
+++ b/arch/arm/mach-tegra/gpio.c
@@ -208,9 +208,9 @@ static int tegra_gpio_irq_set_type(struct irq_data *d, unsigned int type)
 	spin_unlock_irqrestore(&bank->lvl_lock[port], flags);
 
 	if (type & (IRQ_TYPE_LEVEL_LOW | IRQ_TYPE_LEVEL_HIGH))
-		__set_irq_handler_unlocked(d->irq, handle_level_irq);
+		__irq_set_handler_locked(d->irq, handle_level_irq);
 	else if (type & (IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_EDGE_RISING))
-		__set_irq_handler_unlocked(d->irq, handle_edge_irq);
+		__irq_set_handler_locked(d->irq, handle_edge_irq);
 
 	return 0;
 }
@@ -224,7 +224,7 @@ static void tegra_gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
 
 	desc->irq_data.chip->irq_ack(&desc->irq_data);
 
-	bank = get_irq_data(irq);
+	bank = irq_get_handler_data(irq);
 
 	for (port = 0; port < 4; port++) {
 		int gpio = tegra_gpio_compose(bank->bank, port, 0);
@@ -275,13 +275,6 @@ void tegra_gpio_resume(void)
 	}
 
 	local_irq_restore(flags);
-
-	for (i = INT_GPIO_BASE; i < (INT_GPIO_BASE + TEGRA_NR_GPIOS); i++) {
-		struct irq_desc *desc = irq_to_desc(i);
-		if (!desc || (desc->status & IRQ_WAKEUP))
-			continue;
-		enable_irq(i);
-	}
 }
 
 void tegra_gpio_suspend(void)
@@ -289,18 +282,6 @@ void tegra_gpio_suspend(void)
 	unsigned long flags;
 	int b, p, i;
 
-	for (i = INT_GPIO_BASE; i < (INT_GPIO_BASE + TEGRA_NR_GPIOS); i++) {
-		struct irq_desc *desc = irq_to_desc(i);
-		if (!desc)
-			continue;
-		if (desc->status & IRQ_WAKEUP) {
-			int gpio = i - INT_GPIO_BASE;
-			pr_debug("gpio %d.%d is wakeup\n", gpio/8, gpio&7);
-			continue;
-		}
-		disable_irq(i);
-	}
-
 	local_irq_save(flags);
 	for (b = 0; b < ARRAY_SIZE(tegra_gpio_banks); b++) {
 		struct tegra_gpio_bank *bank = &tegra_gpio_banks[b];
@@ -320,7 +301,7 @@ void tegra_gpio_suspend(void)
 static int tegra_gpio_wake_enable(struct irq_data *d, unsigned int enable)
 {
 	struct tegra_gpio_bank *bank = irq_data_get_irq_chip_data(d);
-	return set_irq_wake(bank->irq, enable);
+	return irq_set_irq_wake(bank->irq, enable);
 }
 #endif
 
@@ -359,18 +340,18 @@ static int __init tegra_gpio_init(void)
 	for (i = INT_GPIO_BASE; i < (INT_GPIO_BASE + TEGRA_NR_GPIOS); i++) {
 		bank = &tegra_gpio_banks[GPIO_BANK(irq_to_gpio(i))];
 
-		lockdep_set_class(&irq_desc[i].lock, &gpio_lock_class);
-		set_irq_chip_data(i, bank);
-		set_irq_chip(i, &tegra_gpio_irq_chip);
-		set_irq_handler(i, handle_simple_irq);
+		irq_set_lockdep_class(i, &gpio_lock_class);
+		irq_set_chip_data(i, bank);
+		irq_set_chip_and_handler(i, &tegra_gpio_irq_chip,
+					 handle_simple_irq);
 		set_irq_flags(i, IRQF_VALID);
 	}
 
 	for (i = 0; i < ARRAY_SIZE(tegra_gpio_banks); i++) {
 		bank = &tegra_gpio_banks[i];
 
-		set_irq_chained_handler(bank->irq, tegra_gpio_irq_handler);
-		set_irq_data(bank->irq, bank);
+		irq_set_chained_handler(bank->irq, tegra_gpio_irq_handler);
+		irq_set_handler_data(bank->irq, bank);
 
 		for (j = 0; j < 4; j++)
 			spin_lock_init(&bank->lvl_lock[j]);
diff --git a/arch/arm/mach-tegra/include/mach/dma.h b/arch/arm/mach-tegra/include/mach/dma.h
index 39011bd9a925..d0132e8031a1 100644
--- a/arch/arm/mach-tegra/include/mach/dma.h
+++ b/arch/arm/mach-tegra/include/mach/dma.h
@@ -92,11 +92,11 @@ struct tegra_dma_req {
 	/*  This is a called from the DMA ISR context when the DMA is still in
 	 *  progress and is actively filling same buffer.
 	 *
-	 *  In case of continous mode receive, this threshold is 1/2 the buffer
+	 *  In case of continuous mode receive, this threshold is 1/2 the buffer
 	 *  size. In other cases, this will not even be called as there is no
 	 *  hardware support for it.
 	 *
-	 * In the case of continous mode receive, if there is next req already
+	 * In the case of continuous mode receive, if there is next req already
 	 * queued, DMA programs the HW to use that req when this req is
 	 * completed. If there is no "next req" queued, then DMA ISR doesn't do
 	 * anything before calling this callback.
diff --git a/arch/arm/mach-tegra/irq.c b/arch/arm/mach-tegra/irq.c
index dfbc219ea492..4330d8995b27 100644
--- a/arch/arm/mach-tegra/irq.c
+++ b/arch/arm/mach-tegra/irq.c
@@ -144,7 +144,7 @@ void __init tegra_init_irq(void)
 	gic_init(0, 29, IO_ADDRESS(TEGRA_ARM_INT_DIST_BASE),
 		 IO_ADDRESS(TEGRA_ARM_PERIF_BASE + 0x100));
 
-	gic = get_irq_chip(29);
+	gic = irq_get_chip(29);
 	tegra_gic_unmask_irq = gic->irq_unmask;
 	tegra_gic_mask_irq = gic->irq_mask;
 	tegra_gic_ack_irq = gic->irq_ack;
@@ -154,8 +154,7 @@ void __init tegra_init_irq(void)
 
 	for (i = 0; i < INT_MAIN_NR; i++) {
 		irq = INT_PRI_BASE + i;
-		set_irq_chip(irq, &tegra_irq);
-		set_irq_handler(irq, handle_level_irq);
+		irq_set_chip_and_handler(irq, &tegra_irq, handle_level_irq);
 		set_irq_flags(irq, IRQF_VALID);
 	}
 }
diff --git a/arch/arm/mach-u300/clock.c b/arch/arm/mach-u300/clock.c
index fabcc49abe80..5535dd0a78c9 100644
--- a/arch/arm/mach-u300/clock.c
+++ b/arch/arm/mach-u300/clock.c
@@ -263,7 +263,7 @@ static void disable_i2s0_vcxo(void)
 	val = readw(U300_SYSCON_VBASE + U300_SYSCON_CCR);
 	val &= ~U300_SYSCON_CCR_I2S0_USE_VCXO;
 	writew(val, U300_SYSCON_VBASE + U300_SYSCON_CCR);
-	/* Deactivate VCXO if noone else is using VCXO */
+	/* Deactivate VCXO if no one else is using VCXO */
 	if (!(val & U300_SYSCON_CCR_I2S1_USE_VCXO))
 		val &= ~U300_SYSCON_CCR_TURN_VCXO_ON;
 	writew(val, U300_SYSCON_VBASE + U300_SYSCON_CCR);
@@ -283,7 +283,7 @@ static void disable_i2s1_vcxo(void)
 	val = readw(U300_SYSCON_VBASE + U300_SYSCON_CCR);
 	val &= ~U300_SYSCON_CCR_I2S1_USE_VCXO;
 	writew(val, U300_SYSCON_VBASE + U300_SYSCON_CCR);
-	/* Deactivate VCXO if noone else is using VCXO */
+	/* Deactivate VCXO if no one else is using VCXO */
 	if (!(val & U300_SYSCON_CCR_I2S0_USE_VCXO))
 		val &= ~U300_SYSCON_CCR_TURN_VCXO_ON;
 	writew(val, U300_SYSCON_VBASE + U300_SYSCON_CCR);
@@ -649,7 +649,7 @@ static unsigned long clk_round_rate_cpuclk(struct clk *clk, unsigned long rate)
  */
 long clk_round_rate(struct clk *clk, unsigned long rate)
 {
-	/* TODO: get apropriate switches for EMIFCLK, AHBCLK and MCLK */
+	/* TODO: get appropriate switches for EMIFCLK, AHBCLK and MCLK */
 	/* Else default to fixed value */
 
 	if (clk->round_rate) {
diff --git a/arch/arm/mach-ux500/Kconfig b/arch/arm/mach-ux500/Kconfig
index 203b986280f5..58626013aa32 100644
--- a/arch/arm/mach-ux500/Kconfig
+++ b/arch/arm/mach-ux500/Kconfig
@@ -23,6 +23,7 @@ menu "Ux500 target platform"
 config MACH_U8500
 	bool "U8500 Development platform"
 	depends on UX500_SOC_DB8500
+	select TPS6105X
 	help
 	  Include support for the mop500 development platform.
 
diff --git a/arch/arm/mach-ux500/board-mop500-regulators.c b/arch/arm/mach-ux500/board-mop500-regulators.c
index 875c91b2f8a4..9ed0f90cfe23 100644
--- a/arch/arm/mach-ux500/board-mop500-regulators.c
+++ b/arch/arm/mach-ux500/board-mop500-regulators.c
@@ -13,6 +13,30 @@
 #include <linux/regulator/ab8500.h>
 #include "board-mop500-regulators.h"
 
+/*
+ * TPS61052 regulator
+ */
+static struct regulator_consumer_supply tps61052_vaudio_consumers[] = {
+	/*
+	 * Boost converter supply to raise voltage on audio speaker, this
+	 * is actually connected to three pins, VInVhfL (left amplifier)
+	 * VInVhfR (right amplifier) and VIntDClassInt - all three must
+	 * be connected to the same voltage.
+	 */
+	REGULATOR_SUPPLY("vintdclassint", "ab8500-codec.0"),
+};
+
+struct regulator_init_data tps61052_regulator = {
+	.constraints = {
+		.name = "vaudio-hf",
+		.min_uV = 4500000,
+		.max_uV = 4500000,
+		.valid_ops_mask = REGULATOR_CHANGE_STATUS,
+	},
+	.num_consumer_supplies = ARRAY_SIZE(tps61052_vaudio_consumers),
+	.consumer_supplies = tps61052_vaudio_consumers,
+};
+
 static struct regulator_consumer_supply ab8500_vaux1_consumers[] = {
 	/* External displays, connector on board 2v5 power supply */
 	REGULATOR_SUPPLY("vaux12v5", "mcde.0"),
@@ -62,6 +86,182 @@ static struct regulator_consumer_supply ab8500_vana_consumers[] = {
 	REGULATOR_SUPPLY("vsmps2", "mcde.0"),
 };
 
+/* ab8500 regulator register initialization */
+struct ab8500_regulator_reg_init
+ab8500_regulator_reg_init[AB8500_NUM_REGULATOR_REGISTERS] = {
+	/*
+	 * VanaRequestCtrl          = HP/LP depending on VxRequest
+	 * VextSupply1RequestCtrl   = HP/LP depending on VxRequest
+	 */
+	INIT_REGULATOR_REGISTER(AB8500_REGUREQUESTCTRL2, 0x00),
+	/*
+	 * VextSupply2RequestCtrl   = HP/LP depending on VxRequest
+	 * VextSupply3RequestCtrl   = HP/LP depending on VxRequest
+	 * Vaux1RequestCtrl         = HP/LP depending on VxRequest
+	 * Vaux2RequestCtrl         = HP/LP depending on VxRequest
+	 */
+	INIT_REGULATOR_REGISTER(AB8500_REGUREQUESTCTRL3, 0x00),
+	/*
+	 * Vaux3RequestCtrl         = HP/LP depending on VxRequest
+	 * SwHPReq                  = Control through SWValid disabled
+	 */
+	INIT_REGULATOR_REGISTER(AB8500_REGUREQUESTCTRL4, 0x00),
+	/*
+	 * VanaSysClkReq1HPValid    = disabled
+	 * Vaux1SysClkReq1HPValid   = disabled
+	 * Vaux2SysClkReq1HPValid   = disabled
+	 * Vaux3SysClkReq1HPValid   = disabled
+	 */
+	INIT_REGULATOR_REGISTER(AB8500_REGUSYSCLKREQ1HPVALID1, 0x00),
+	/*
+	 * VextSupply1SysClkReq1HPValid = disabled
+	 * VextSupply2SysClkReq1HPValid = disabled
+	 * VextSupply3SysClkReq1HPValid = SysClkReq1 controlled
+	 */
+	INIT_REGULATOR_REGISTER(AB8500_REGUSYSCLKREQ1HPVALID2, 0x40),
+	/*
+	 * VanaHwHPReq1Valid        = disabled
+	 * Vaux1HwHPreq1Valid       = disabled
+	 * Vaux2HwHPReq1Valid       = disabled
+	 * Vaux3HwHPReqValid        = disabled
+	 */
+	INIT_REGULATOR_REGISTER(AB8500_REGUHWHPREQ1VALID1, 0x00),
+	/*
+	 * VextSupply1HwHPReq1Valid = disabled
+	 * VextSupply2HwHPReq1Valid = disabled
+	 * VextSupply3HwHPReq1Valid = disabled
+	 */
+	INIT_REGULATOR_REGISTER(AB8500_REGUHWHPREQ1VALID2, 0x00),
+	/*
+	 * VanaHwHPReq2Valid        = disabled
+	 * Vaux1HwHPReq2Valid       = disabled
+	 * Vaux2HwHPReq2Valid       = disabled
+	 * Vaux3HwHPReq2Valid       = disabled
+	 */
+	INIT_REGULATOR_REGISTER(AB8500_REGUHWHPREQ2VALID1, 0x00),
+	/*
+	 * VextSupply1HwHPReq2Valid = disabled
+	 * VextSupply2HwHPReq2Valid = disabled
+	 * VextSupply3HwHPReq2Valid = HWReq2 controlled
+	 */
+	INIT_REGULATOR_REGISTER(AB8500_REGUHWHPREQ2VALID2, 0x04),
+	/*
+	 * VanaSwHPReqValid         = disabled
+	 * Vaux1SwHPReqValid        = disabled
+	 */
+	INIT_REGULATOR_REGISTER(AB8500_REGUSWHPREQVALID1, 0x00),
+	/*
+	 * Vaux2SwHPReqValid        = disabled
+	 * Vaux3SwHPReqValid        = disabled
+	 * VextSupply1SwHPReqValid  = disabled
+	 * VextSupply2SwHPReqValid  = disabled
+	 * VextSupply3SwHPReqValid  = disabled
+	 */
+	INIT_REGULATOR_REGISTER(AB8500_REGUSWHPREQVALID2, 0x00),
+	/*
+	 * SysClkReq2Valid1         = SysClkReq2 controlled
+	 * SysClkReq3Valid1         = disabled
+	 * SysClkReq4Valid1         = SysClkReq4 controlled
+	 * SysClkReq5Valid1         = disabled
+	 * SysClkReq6Valid1         = SysClkReq6 controlled
+	 * SysClkReq7Valid1         = disabled
+	 * SysClkReq8Valid1         = disabled
+	 */
+	INIT_REGULATOR_REGISTER(AB8500_REGUSYSCLKREQVALID1, 0x2a),
+	/*
+	 * SysClkReq2Valid2         = disabled
+	 * SysClkReq3Valid2         = disabled
+	 * SysClkReq4Valid2         = disabled
+	 * SysClkReq5Valid2         = disabled
+	 * SysClkReq6Valid2         = SysClkReq6 controlled
+	 * SysClkReq7Valid2         = disabled
+	 * SysClkReq8Valid2         = disabled
+	 */
+	INIT_REGULATOR_REGISTER(AB8500_REGUSYSCLKREQVALID2, 0x20),
+	/*
+	 * VTVoutEna                = disabled
+	 * Vintcore12Ena            = disabled
+	 * Vintcore12Sel            = 1.25 V
+	 * Vintcore12LP             = inactive (HP)
+	 * VTVoutLP                 = inactive (HP)
+	 */
+	INIT_REGULATOR_REGISTER(AB8500_REGUMISC1, 0x10),
+	/*
+	 * VaudioEna                = disabled
+	 * VdmicEna                 = disabled
+	 * Vamic1Ena                = disabled
+	 * Vamic2Ena                = disabled
+	 */
+	INIT_REGULATOR_REGISTER(AB8500_VAUDIOSUPPLY, 0x00),
+	/*
+	 * Vamic1_dzout             = high-Z when Vamic1 is disabled
+	 * Vamic2_dzout             = high-Z when Vamic2 is disabled
+	 */
+	INIT_REGULATOR_REGISTER(AB8500_REGUCTRL1VAMIC, 0x00),
+	/*
+	 * VPll                     = Hw controlled
+	 * VanaRegu                 = force off
+	 */
+	INIT_REGULATOR_REGISTER(AB8500_VPLLVANAREGU, 0x02),
+	/*
+	 * VrefDDREna               = disabled
+	 * VrefDDRSleepMode         = inactive (no pulldown)
+	 */
+	INIT_REGULATOR_REGISTER(AB8500_VREFDDR, 0x00),
+	/*
+	 * VextSupply1Regu          = HW control
+	 * VextSupply2Regu          = HW control
+	 * VextSupply3Regu          = HW control
+	 * ExtSupply2Bypass         = ExtSupply12LPn ball is 0 when Ena is 0
+	 * ExtSupply3Bypass         = ExtSupply3LPn ball is 0 when Ena is 0
+	 */
+	INIT_REGULATOR_REGISTER(AB8500_EXTSUPPLYREGU, 0x2a),
+	/*
+	 * Vaux1Regu                = force HP
+	 * Vaux2Regu                = force off
+	 */
+	INIT_REGULATOR_REGISTER(AB8500_VAUX12REGU, 0x01),
+	/*
+	 * Vaux3regu                = force off
+	 */
+	INIT_REGULATOR_REGISTER(AB8500_VRF1VAUX3REGU, 0x00),
+	/*
+	 * Vsmps1                   = 1.15V
+	 */
+	INIT_REGULATOR_REGISTER(AB8500_VSMPS1SEL1, 0x24),
+	/*
+	 * Vaux1Sel                 = 2.5 V
+	 */
+	INIT_REGULATOR_REGISTER(AB8500_VAUX1SEL, 0x08),
+	/*
+	 * Vaux2Sel                 = 2.9 V
+	 */
+	INIT_REGULATOR_REGISTER(AB8500_VAUX2SEL, 0x0d),
+	/*
+	 * Vaux3Sel                 = 2.91 V
+	 */
+	INIT_REGULATOR_REGISTER(AB8500_VRF1VAUX3SEL, 0x07),
+	/*
+	 * VextSupply12LP           = disabled (no LP)
+	 */
+	INIT_REGULATOR_REGISTER(AB8500_REGUCTRL2SPARE, 0x00),
+	/*
+	 * Vaux1Disch               = short discharge time
+	 * Vaux2Disch               = short discharge time
+	 * Vaux3Disch               = short discharge time
+	 * Vintcore12Disch          = short discharge time
+	 * VTVoutDisch              = short discharge time
+	 * VaudioDisch              = short discharge time
+	 */
+	INIT_REGULATOR_REGISTER(AB8500_REGUCTRLDISCH, 0x00),
+	/*
+	 * VanaDisch                = short discharge time
+	 * VdmicPullDownEna         = pulldown disabled when Vdmic is disabled
+	 * VdmicDisch               = short discharge time
+	 */
+	INIT_REGULATOR_REGISTER(AB8500_REGUCTRLDISCH2, 0x00),
+};
+
 /* AB8500 regulators */
 struct regulator_init_data ab8500_regulators[AB8500_NUM_REGULATORS] = {
 	/* supplies to the display/camera */
@@ -72,6 +272,7 @@ struct regulator_init_data ab8500_regulators[AB8500_NUM_REGULATORS] = {
 			.max_uV = 2900000,
 			.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
 					  REGULATOR_CHANGE_STATUS,
+			.boot_on = 1, /* must be on for display */
 		},
 		.num_consumer_supplies = ARRAY_SIZE(ab8500_vaux1_consumers),
 		.consumer_supplies = ab8500_vaux1_consumers,
diff --git a/arch/arm/mach-ux500/board-mop500-regulators.h b/arch/arm/mach-ux500/board-mop500-regulators.h
index 2675fae52537..94992158d962 100644
--- a/arch/arm/mach-ux500/board-mop500-regulators.h
+++ b/arch/arm/mach-ux500/board-mop500-regulators.h
@@ -14,6 +14,9 @@
 #include <linux/regulator/machine.h>
 #include <linux/regulator/ab8500.h>
 
+extern struct ab8500_regulator_reg_init
+ab8500_regulator_reg_init[AB8500_NUM_REGULATOR_REGISTERS];
 extern struct regulator_init_data ab8500_regulators[AB8500_NUM_REGULATORS];
+extern struct regulator_init_data tps61052_regulator;
 
 #endif
diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c
index 8790d984cac8..af913741e6ec 100644
--- a/arch/arm/mach-ux500/board-mop500.c
+++ b/arch/arm/mach-ux500/board-mop500.c
@@ -20,7 +20,10 @@
 #include <linux/amba/serial.h>
 #include <linux/spi/spi.h>
 #include <linux/mfd/ab8500.h>
+#include <linux/regulator/ab8500.h>
 #include <linux/mfd/tc3589x.h>
+#include <linux/mfd/tps6105x.h>
+#include <linux/mfd/ab8500/gpio.h>
 #include <linux/leds-lp5521.h>
 #include <linux/input.h>
 #include <linux/gpio_keys.h>
@@ -41,10 +44,35 @@
 #include "board-mop500.h"
 #include "board-mop500-regulators.h"
 
+static struct ab8500_gpio_platform_data ab8500_gpio_pdata = {
+	.gpio_base		= MOP500_AB8500_GPIO(0),
+	.irq_base		= MOP500_AB8500_VIR_GPIO_IRQ_BASE,
+	/* config_reg is the initial configuration of ab8500 pins.
+	 * The pins can be configured as GPIO or alt functions based
+	 * on value present in GpioSel1 to GpioSel6 and AlternatFunction
+	 * register. This is the array of 7 configuration settings.
+	 * One has to compile time decide these settings. Below is the
+	 * explanation of these setting
+	 * GpioSel1 = 0x00 => Pins GPIO1 to GPIO8 are not used as GPIO
+	 * GpioSel2 = 0x1E => Pins GPIO10 to GPIO13 are configured as GPIO
+	 * GpioSel3 = 0x80 => Pin GPIO24 is configured as GPIO
+	 * GpioSel4 = 0x01 => Pin GPIo25 is configured as GPIO
+	 * GpioSel5 = 0x7A => Pins GPIO34, GPIO36 to GPIO39 are conf as GPIO
+	 * GpioSel6 = 0x00 => Pins GPIO41 & GPIo42 are not configured as GPIO
+	 * AlternaFunction = 0x00 => If Pins GPIO10 to 13 are not configured
+	 * as GPIO then this register selectes the alternate fucntions
+	 */
+	.config_reg		= {0x00, 0x1E, 0x80, 0x01,
+					0x7A, 0x00, 0x00},
+};
+
 static struct ab8500_platform_data ab8500_platdata = {
 	.irq_base	= MOP500_AB8500_IRQ_BASE,
+	.regulator_reg_init = ab8500_regulator_reg_init,
+	.num_regulator_reg_init	= ARRAY_SIZE(ab8500_regulator_reg_init),
 	.regulator	= ab8500_regulators,
 	.num_regulator	= ARRAY_SIZE(ab8500_regulators),
+	.gpio		= &ab8500_gpio_pdata,
 };
 
 static struct resource ab8500_resources[] = {
@@ -66,6 +94,15 @@ struct platform_device ab8500_device = {
 };
 
 /*
+ * TPS61052
+ */
+
+static struct tps6105x_platform_data mop500_tps61052_data = {
+	.mode = TPS6105X_MODE_VOLTAGE,
+	.regulator_data = &tps61052_regulator,
+};
+
+/*
  * TC35892
  */
 
@@ -135,7 +172,7 @@ static struct lp5521_platform_data __initdata lp5521_sec_data = {
        .clock_mode     = LP5521_CLOCK_EXT,
 };
 
-static struct i2c_board_info mop500_i2c0_devices[] = {
+static struct i2c_board_info __initdata mop500_i2c0_devices[] = {
 	{
 		I2C_BOARD_INFO("tc3589x", 0x42),
 		.irq		= NOMADIK_GPIO_TO_IRQ(217),
@@ -143,6 +180,14 @@ static struct i2c_board_info mop500_i2c0_devices[] = {
 	},
 };
 
+/* I2C0 devices only available prior to HREFv60 */
+static struct i2c_board_info __initdata mop500_i2c0_old_devices[] = {
+	{
+		I2C_BOARD_INFO("tps61052", 0x33),
+		.platform_data  = &mop500_tps61052_data,
+	},
+};
+
 static struct i2c_board_info __initdata mop500_i2c2_devices[] = {
 	{
 		/* lp5521 LED driver, 1st device */
@@ -405,6 +450,9 @@ static void __init mop500_init_machine(void)
 
 	i2c_register_board_info(0, mop500_i2c0_devices,
 				ARRAY_SIZE(mop500_i2c0_devices));
+	if (!machine_is_hrefv60())
+		i2c_register_board_info(0, mop500_i2c0_old_devices,
+					ARRAY_SIZE(mop500_i2c0_old_devices));
 	i2c_register_board_info(2, mop500_i2c2_devices,
 				ARRAY_SIZE(mop500_i2c2_devices));
 }
diff --git a/arch/arm/mach-ux500/board-mop500.h b/arch/arm/mach-ux500/board-mop500.h
index 56722f4be71b..03a31cc9b084 100644
--- a/arch/arm/mach-ux500/board-mop500.h
+++ b/arch/arm/mach-ux500/board-mop500.h
@@ -27,6 +27,10 @@
 #define GPIO_BU21013_CS			MOP500_EGPIO(13)
 #define GPIO_SDMMC_EN			MOP500_EGPIO(17)
 #define GPIO_SDMMC_1V8_3V_SEL		MOP500_EGPIO(18)
+#define MOP500_EGPIO_END		MOP500_EGPIO(24)
+
+/* GPIOs on the AB8500 mixed-signals circuit */
+#define MOP500_AB8500_GPIO(x)		(MOP500_EGPIO_END + (x))
 
 struct i2c_board_info;
 
diff --git a/arch/arm/mach-ux500/include/mach/db8500-regs.h b/arch/arm/mach-ux500/include/mach/db8500-regs.h
index 0fefb34c11e4..16647b255378 100644
--- a/arch/arm/mach-ux500/include/mach/db8500-regs.h
+++ b/arch/arm/mach-ux500/include/mach/db8500-regs.h
@@ -58,7 +58,7 @@
 #define U8500_GPIO2_BASE	(U8500_PER2_BASE + 0xE000)
 #define U8500_GPIO3_BASE	(U8500_PER5_BASE + 0x1E000)
 
-/* per7 base addressess */
+/* per7 base addresses */
 #define U8500_CR_BASE_ED	(U8500_PER7_BASE_ED + 0x8000)
 #define U8500_MTU0_BASE_ED	(U8500_PER7_BASE_ED + 0xa000)
 #define U8500_MTU1_BASE_ED	(U8500_PER7_BASE_ED + 0xb000)
@@ -68,7 +68,7 @@
 #define U8500_UART0_BASE	(U8500_PER1_BASE + 0x0000)
 #define U8500_UART1_BASE	(U8500_PER1_BASE + 0x1000)
 
-/* per6 base addressess */
+/* per6 base addresses */
 #define U8500_RNG_BASE		(U8500_PER6_BASE + 0x0000)
 #define U8500_PKA_BASE		(U8500_PER6_BASE + 0x1000)
 #define U8500_PKAM_BASE		(U8500_PER6_BASE + 0x2000)
@@ -79,11 +79,11 @@
 #define U8500_CRYPTO1_BASE	(U8500_PER6_BASE + 0xb000)
 #define U8500_CLKRST6_BASE	(U8500_PER6_BASE + 0xf000)
 
-/* per5 base addressess */
+/* per5 base addresses */
 #define U8500_USBOTG_BASE	(U8500_PER5_BASE + 0x00000)
 #define U8500_CLKRST5_BASE	(U8500_PER5_BASE + 0x1f000)
 
-/* per4 base addressess */
+/* per4 base addresses */
 #define U8500_BACKUPRAM0_BASE	(U8500_PER4_BASE + 0x00000)
 #define U8500_BACKUPRAM1_BASE	(U8500_PER4_BASE + 0x01000)
 #define U8500_RTT0_BASE		(U8500_PER4_BASE + 0x02000)
@@ -106,7 +106,7 @@
 #define U8500_SDI5_BASE		(U8500_PER3_BASE + 0x8000)
 #define U8500_CLKRST3_BASE	(U8500_PER3_BASE + 0xf000)
 
-/* per2 base addressess */
+/* per2 base addresses */
 #define U8500_I2C3_BASE		(U8500_PER2_BASE + 0x0000)
 #define U8500_SPI2_BASE		(U8500_PER2_BASE + 0x1000)
 #define U8500_SPI1_BASE		(U8500_PER2_BASE + 0x2000)
diff --git a/arch/arm/mach-ux500/include/mach/irqs-board-mop500.h b/arch/arm/mach-ux500/include/mach/irqs-board-mop500.h
index 7cdeb2af0ebb..97ef55f84934 100644
--- a/arch/arm/mach-ux500/include/mach/irqs-board-mop500.h
+++ b/arch/arm/mach-ux500/include/mach/irqs-board-mop500.h
@@ -35,9 +35,20 @@
 #define MOP500_STMPE1601_IRQBASE        MOP500_EGPIO_IRQ_END
 #define MOP500_STMPE1601_IRQ(x)         (MOP500_STMPE1601_IRQBASE + (x))
 
-#define MOP500_NR_IRQS          MOP500_STMPE1601_IRQ(STMPE_NR_INTERNAL_IRQS)
+#define MOP500_STMPE1601_IRQ_END	\
+	MOP500_STMPE1601_IRQ(STMPE_NR_INTERNAL_IRQS)
 
-#define MOP500_IRQ_END          MOP500_NR_IRQS
+/* AB8500 virtual gpio IRQ */
+#define AB8500_VIR_GPIO_NR_IRQS			16
+
+#define MOP500_AB8500_VIR_GPIO_IRQ_BASE		\
+	MOP500_STMPE1601_IRQ_END
+#define MOP500_AB8500_VIR_GPIO_IRQ_END		\
+	(MOP500_AB8500_VIR_GPIO_IRQ_BASE + AB8500_VIR_GPIO_NR_IRQS)
+
+#define MOP500_NR_IRQS		MOP500_AB8500_VIR_GPIO_IRQ_END
+
+#define MOP500_IRQ_END		MOP500_NR_IRQS
 
 #if MOP500_IRQ_END > IRQ_BOARD_END
 #undef IRQ_BOARD_END
diff --git a/arch/arm/mach-ux500/modem-irq-db5500.c b/arch/arm/mach-ux500/modem-irq-db5500.c
index e1296a7447c8..6b86416c94c9 100644
--- a/arch/arm/mach-ux500/modem-irq-db5500.c
+++ b/arch/arm/mach-ux500/modem-irq-db5500.c
@@ -90,8 +90,7 @@ static irqreturn_t modem_cpu_irq_handler(int irq, void *data)
 
 static void create_virtual_irq(int irq, struct irq_chip *modem_irq_chip)
 {
-	set_irq_chip(irq, modem_irq_chip);
-	set_irq_handler(irq, handle_simple_irq);
+	irq_set_chip_and_handler(irq, modem_irq_chip, handle_simple_irq);
 	set_irq_flags(irq, IRQF_VALID);
 
 	pr_debug("modem_irq: Created virtual IRQ %d\n", irq);
diff --git a/arch/arm/mach-vt8500/irq.c b/arch/arm/mach-vt8500/irq.c
index 5f4ddde4f02a..245140c0df10 100644
--- a/arch/arm/mach-vt8500/irq.c
+++ b/arch/arm/mach-vt8500/irq.c
@@ -97,15 +97,15 @@ static int vt8500_irq_set_type(unsigned int irq, unsigned int flow_type)
 		return -EINVAL;
 	case IRQF_TRIGGER_HIGH:
 		dctr |= VT8500_TRIGGER_HIGH;
-		irq_desc[orig_irq].handle_irq = handle_level_irq;
+		__irq_set_handler_locked(orig_irq, handle_level_irq);
 		break;
 	case IRQF_TRIGGER_FALLING:
 		dctr |= VT8500_TRIGGER_FALLING;
-		irq_desc[orig_irq].handle_irq = handle_edge_irq;
+		__irq_set_handler_locked(orig_irq, handle_edge_irq);
 		break;
 	case IRQF_TRIGGER_RISING:
 		dctr |= VT8500_TRIGGER_RISING;
-		irq_desc[orig_irq].handle_irq = handle_edge_irq;
+		__irq_set_handler_locked(orig_irq, handle_edge_irq);
 		break;
 	}
 	writeb(dctr, base + VT8500_IC_DCTR + irq);
@@ -136,8 +136,8 @@ void __init vt8500_init_irq(void)
 			/* Disable all interrupts and route them to IRQ */
 			writeb(0x00, ic_regbase + VT8500_IC_DCTR + i);
 
-			set_irq_chip(i, &vt8500_irq_chip);
-			set_irq_handler(i, handle_level_irq);
+			irq_set_chip_and_handler(i, &vt8500_irq_chip,
+						 handle_level_irq);
 			set_irq_flags(i, IRQF_VALID);
 		}
 	} else {
@@ -167,8 +167,8 @@ void __init wm8505_init_irq(void)
 				writeb(0x00, sic_regbase + VT8500_IC_DCTR
 								+ i - 64);
 
-			set_irq_chip(i, &vt8500_irq_chip);
-			set_irq_handler(i, handle_level_irq);
+			irq_set_chip_and_handler(i, &vt8500_irq_chip,
+						 handle_level_irq);
 			set_irq_flags(i, IRQF_VALID);
 		}
 	} else {
diff --git a/arch/arm/mach-w90x900/irq.c b/arch/arm/mach-w90x900/irq.c
index 9c350103dcda..7bf143c443f1 100644
--- a/arch/arm/mach-w90x900/irq.c
+++ b/arch/arm/mach-w90x900/irq.c
@@ -207,8 +207,8 @@ void __init nuc900_init_irq(void)
 	__raw_writel(0xFFFFFFFE, REG_AIC_MDCR);
 
 	for (irqno = IRQ_WDT; irqno <= IRQ_ADC; irqno++) {
-		set_irq_chip(irqno, &nuc900_irq_chip);
-		set_irq_handler(irqno, handle_level_irq);
+		irq_set_chip_and_handler(irqno, &nuc900_irq_chip,
+					 handle_level_irq);
 		set_irq_flags(irqno, IRQF_VALID);
 	}
 }
diff --git a/arch/arm/mm/cache-v4wb.S b/arch/arm/mm/cache-v4wb.S
index d3644db467b7..f40c69656d8d 100644
--- a/arch/arm/mm/cache-v4wb.S
+++ b/arch/arm/mm/cache-v4wb.S
@@ -32,7 +32,7 @@
 /*
  * This is the size at which it becomes more efficient to
  * clean the whole cache, rather than using the individual
- * cache line maintainence instructions.
+ * cache line maintenance instructions.
  *
  *  Size  Clean (ticks) Dirty (ticks)
  *   4096   21  20  21    53  55  54
diff --git a/arch/arm/mm/cache-v4wt.S b/arch/arm/mm/cache-v4wt.S
index 49c2b66cf3dd..a7b276dbda11 100644
--- a/arch/arm/mm/cache-v4wt.S
+++ b/arch/arm/mm/cache-v4wt.S
@@ -34,7 +34,7 @@
 /*
  * This is the size at which it becomes more efficient to
  * clean the whole cache, rather than using the individual
- * cache line maintainence instructions.
+ * cache line maintenance instructions.
  *
  * *** This needs benchmarking
  */
diff --git a/arch/arm/mm/cache-v7.S b/arch/arm/mm/cache-v7.S
index 6136e68ce953..dc18d81ef8ce 100644
--- a/arch/arm/mm/cache-v7.S
+++ b/arch/arm/mm/cache-v7.S
@@ -96,7 +96,7 @@ ENDPROC(v7_flush_dcache_all)
  *	Flush the entire cache system.
  *  The data cache flush is now achieved using atomic clean / invalidates
  *  working outwards from L1 cache. This is done using Set/Way based cache
- *  maintainance instructions.
+ *  maintenance instructions.
  *  The instruction cache can still be invalidated back to the point of
  *  unification in a single instruction.
  *
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index b3b0f0f5053d..e5f6fc428348 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -78,7 +78,7 @@ __tagtable(ATAG_INITRD2, parse_tag_initrd2);
  */
 struct meminfo meminfo;
 
-void show_mem(void)
+void show_mem(unsigned int filter)
 {
 	int free = 0, total = 0, reserved = 0;
 	int shared = 0, cached = 0, slab = 0, i;
diff --git a/arch/arm/mm/proc-arm1020.S b/arch/arm/mm/proc-arm1020.S
index 226e3d8351c2..6c4e7fd6c8af 100644
--- a/arch/arm/mm/proc-arm1020.S
+++ b/arch/arm/mm/proc-arm1020.S
@@ -64,7 +64,7 @@
 /*
  * This is the size at which it becomes more efficient to
  * clean the whole cache, rather than using the individual
- * cache line maintainence instructions.
+ * cache line maintenance instructions.
  */
 #define CACHE_DLIMIT	32768
 
diff --git a/arch/arm/mm/proc-arm1020e.S b/arch/arm/mm/proc-arm1020e.S
index 86d9c2cf0bce..4ce947c19623 100644
--- a/arch/arm/mm/proc-arm1020e.S
+++ b/arch/arm/mm/proc-arm1020e.S
@@ -64,7 +64,7 @@
 /*
  * This is the size at which it becomes more efficient to
  * clean the whole cache, rather than using the individual
- * cache line maintainence instructions.
+ * cache line maintenance instructions.
  */
 #define CACHE_DLIMIT	32768
 
diff --git a/arch/arm/mm/proc-arm1022.S b/arch/arm/mm/proc-arm1022.S
index 83d3dd34f846..c8884c5413a2 100644
--- a/arch/arm/mm/proc-arm1022.S
+++ b/arch/arm/mm/proc-arm1022.S
@@ -53,7 +53,7 @@
 /*
  * This is the size at which it becomes more efficient to
  * clean the whole cache, rather than using the individual
- * cache line maintainence instructions.
+ * cache line maintenance instructions.
  */
 #define CACHE_DLIMIT	32768
 
diff --git a/arch/arm/mm/proc-arm1026.S b/arch/arm/mm/proc-arm1026.S
index 686043ee7281..413684660aad 100644
--- a/arch/arm/mm/proc-arm1026.S
+++ b/arch/arm/mm/proc-arm1026.S
@@ -53,7 +53,7 @@
 /*
  * This is the size at which it becomes more efficient to
  * clean the whole cache, rather than using the individual
- * cache line maintainence instructions.
+ * cache line maintenance instructions.
  */
 #define CACHE_DLIMIT	32768
 
diff --git a/arch/arm/mm/proc-arm720.S b/arch/arm/mm/proc-arm720.S
index 665266da143c..7a06e5964f59 100644
--- a/arch/arm/mm/proc-arm720.S
+++ b/arch/arm/mm/proc-arm720.S
@@ -63,7 +63,7 @@ ENTRY(cpu_arm720_proc_fin)
 /*
  * Function: arm720_proc_do_idle(void)
  * Params  : r0 = unused
- * Purpose : put the processer in proper idle mode
+ * Purpose : put the processor in proper idle mode
  */
 ENTRY(cpu_arm720_do_idle)
 		mov	pc, lr
diff --git a/arch/arm/mm/proc-arm920.S b/arch/arm/mm/proc-arm920.S
index 219980ec8b6e..b46eb21f05c7 100644
--- a/arch/arm/mm/proc-arm920.S
+++ b/arch/arm/mm/proc-arm920.S
@@ -53,7 +53,7 @@
 /*
  * This is the size at which it becomes more efficient to
  * clean the whole cache, rather than using the individual
- * cache line maintainence instructions.
+ * cache line maintenance instructions.
  */
 #define CACHE_DLIMIT	65536
 
diff --git a/arch/arm/mm/proc-arm922.S b/arch/arm/mm/proc-arm922.S
index 36154b1e792a..95ba1fc56e4d 100644
--- a/arch/arm/mm/proc-arm922.S
+++ b/arch/arm/mm/proc-arm922.S
@@ -54,7 +54,7 @@
 /*
  * This is the size at which it becomes more efficient to
  * clean the whole cache, rather than using the individual
- * cache line maintainence instructions.  (I think this should
+ * cache line maintenance instructions.  (I think this should
  * be 32768).
  */
 #define CACHE_DLIMIT	8192
diff --git a/arch/arm/mm/proc-arm925.S b/arch/arm/mm/proc-arm925.S
index 89c5e0009c4c..541e4774eea1 100644
--- a/arch/arm/mm/proc-arm925.S
+++ b/arch/arm/mm/proc-arm925.S
@@ -77,7 +77,7 @@
 /*
  * This is the size at which it becomes more efficient to
  * clean the whole cache, rather than using the individual
- * cache line maintainence instructions.
+ * cache line maintenance instructions.
  */
 #define CACHE_DLIMIT	8192
 
diff --git a/arch/arm/mm/proc-macros.S b/arch/arm/mm/proc-macros.S
index e32fa499194c..34261f9486b9 100644
--- a/arch/arm/mm/proc-macros.S
+++ b/arch/arm/mm/proc-macros.S
@@ -85,7 +85,7 @@
 
 /*
  * Sanity check the PTE configuration for the code below - which makes
- * certain assumptions about how these bits are layed out.
+ * certain assumptions about how these bits are laid out.
  */
 #ifdef CONFIG_MMU
 #if L_PTE_SHARED != PTE_EXT_SHARED
diff --git a/arch/arm/mm/proc-v6.S b/arch/arm/mm/proc-v6.S
index 832b6bdc192c..bfa0c9f611c5 100644
--- a/arch/arm/mm/proc-v6.S
+++ b/arch/arm/mm/proc-v6.S
@@ -132,7 +132,7 @@ ENTRY(cpu_v6_do_suspend)
 	mrc	p15, 0, r6, c3, c0, 0	@ Domain ID
 	mrc	p15, 0, r7, c2, c0, 0	@ Translation table base 0
 	mrc	p15, 0, r8, c2, c0, 1	@ Translation table base 1
-	mrc	p15, 0, r9, c1, c0, 1	@ auxillary control register
+	mrc	p15, 0, r9, c1, c0, 1	@ auxiliary control register
 	mrc	p15, 0, r10, c1, c0, 2	@ co-processor access control
 	mrc	p15, 0, r11, c1, c0, 0	@ control register
 	stmia	r0, {r4 - r11}
@@ -151,7 +151,7 @@ ENTRY(cpu_v6_do_resume)
 	mcr	p15, 0, r6, c3, c0, 0	@ Domain ID
 	mcr	p15, 0, r7, c2, c0, 0	@ Translation table base 0
 	mcr	p15, 0, r8, c2, c0, 1	@ Translation table base 1
-	mcr	p15, 0, r9, c1, c0, 1	@ auxillary control register
+	mcr	p15, 0, r9, c1, c0, 1	@ auxiliary control register
 	mcr	p15, 0, r10, c1, c0, 2	@ co-processor access control
 	mcr	p15, 0, ip, c2, c0, 2	@ TTB control register
 	mcr	p15, 0, ip, c7, c5, 4	@ ISB
diff --git a/arch/arm/mm/proc-v7.S b/arch/arm/mm/proc-v7.S
index 262fa88a7439..c35618e42f6f 100644
--- a/arch/arm/mm/proc-v7.S
+++ b/arch/arm/mm/proc-v7.S
@@ -237,7 +237,7 @@ ENTRY(cpu_v7_do_resume)
 	mcr	p15, 0, r7, c2, c0, 0	@ TTB 0
 	mcr	p15, 0, r8, c2, c0, 1	@ TTB 1
 	mcr	p15, 0, ip, c2, c0, 2	@ TTB control register
-	mcr	p15, 0, r10, c1, c0, 1	@ Auxillary control register
+	mcr	p15, 0, r10, c1, c0, 1	@ Auxiliary control register
 	mcr	p15, 0, r11, c1, c0, 2	@ Co-processor access control
 	ldr	r4, =PRRR		@ PRRR
 	ldr	r5, =NMRR		@ NMRR
diff --git a/arch/arm/plat-mxc/3ds_debugboard.c b/arch/arm/plat-mxc/3ds_debugboard.c
index c856fa397606..f0ba0726306c 100644
--- a/arch/arm/plat-mxc/3ds_debugboard.c
+++ b/arch/arm/plat-mxc/3ds_debugboard.c
@@ -100,14 +100,9 @@ static void mxc_expio_irq_handler(u32 irq, struct irq_desc *desc)
 
 	expio_irq = MXC_BOARD_IRQ_START;
 	for (; int_valid != 0; int_valid >>= 1, expio_irq++) {
-		struct irq_desc *d;
 		if ((int_valid & 1) == 0)
 			continue;
-		d = irq_desc + expio_irq;
-		if (unlikely(!(d->handle_irq)))
-			pr_err("\nEXPIO irq: %d unhandled\n", expio_irq);
-		else
-			d->handle_irq(expio_irq, d);
+		generic_handle_irq(expio_irq);
 	}
 
 	desc->irq_data.chip->irq_ack(&desc->irq_data);
@@ -186,12 +181,11 @@ int __init mxc_expio_init(u32 base, u32 p_irq)
 	__raw_writew(0x1F, brd_io + INTR_MASK_REG);
 	for (i = MXC_EXP_IO_BASE;
 	     i < (MXC_EXP_IO_BASE + MXC_MAX_EXP_IO_LINES); i++) {
-		set_irq_chip(i, &expio_irq_chip);
-		set_irq_handler(i, handle_level_irq);
+		irq_set_chip_and_handler(i, &expio_irq_chip, handle_level_irq);
 		set_irq_flags(i, IRQF_VALID);
 	}
-	set_irq_type(p_irq, IRQF_TRIGGER_LOW);
-	set_irq_chained_handler(p_irq, mxc_expio_irq_handler);
+	irq_set_irq_type(p_irq, IRQF_TRIGGER_LOW);
+	irq_set_chained_handler(p_irq, mxc_expio_irq_handler);
 
 	/* Register Lan device on the debugboard */
 	smsc911x_resources[0].start = LAN9217_BASE_ADDR(base);
diff --git a/arch/arm/plat-mxc/avic.c b/arch/arm/plat-mxc/avic.c
index deb284bc7c4b..09e2bd0fcdca 100644
--- a/arch/arm/plat-mxc/avic.c
+++ b/arch/arm/plat-mxc/avic.c
@@ -139,8 +139,8 @@ void __init mxc_init_irq(void __iomem *irqbase)
 	__raw_writel(0, avic_base + AVIC_INTTYPEH);
 	__raw_writel(0, avic_base + AVIC_INTTYPEL);
 	for (i = 0; i < MXC_INTERNAL_IRQS; i++) {
-		set_irq_chip(i, &mxc_avic_chip.base);
-		set_irq_handler(i, handle_level_irq);
+		irq_set_chip_and_handler(i, &mxc_avic_chip.base,
+					 handle_level_irq);
 		set_irq_flags(i, IRQF_VALID);
 	}
 
diff --git a/arch/arm/plat-mxc/cpufreq.c b/arch/arm/plat-mxc/cpufreq.c
index ce81481becf1..4268a2bdf145 100644
--- a/arch/arm/plat-mxc/cpufreq.c
+++ b/arch/arm/plat-mxc/cpufreq.c
@@ -13,7 +13,7 @@
 
 /*
  * A driver for the Freescale Semiconductor i.MXC CPUfreq module.
- * The CPUFREQ driver is for controling CPU frequency. It allows you to change
+ * The CPUFREQ driver is for controlling CPU frequency. It allows you to change
  * the CPU clock speed on the fly.
  */
 
diff --git a/arch/arm/plat-mxc/devices/platform-fec.c b/arch/arm/plat-mxc/devices/platform-fec.c
index 6561c9df5f0d..ccc789e21daa 100644
--- a/arch/arm/plat-mxc/devices/platform-fec.c
+++ b/arch/arm/plat-mxc/devices/platform-fec.c
@@ -53,7 +53,7 @@ struct platform_device *__init imx_add_fec(
 	struct resource res[] = {
 		{
 			.start = data->iobase,
-			.end = data->iobase + SZ_4K,
+			.end = data->iobase + SZ_4K - 1,
 			.flags = IORESOURCE_MEM,
 		}, {
 			.start = data->irq,
diff --git a/arch/arm/plat-mxc/devices/platform-imxdi_rtc.c b/arch/arm/plat-mxc/devices/platform-imxdi_rtc.c
index 10653cc8d1fa..805336fdc252 100644
--- a/arch/arm/plat-mxc/devices/platform-imxdi_rtc.c
+++ b/arch/arm/plat-mxc/devices/platform-imxdi_rtc.c
@@ -27,7 +27,7 @@ struct platform_device *__init imx_add_imxdi_rtc(
 	struct resource res[] = {
 		{
 			.start = data->iobase,
-			.end = data->iobase + SZ_16K,
+			.end = data->iobase + SZ_16K - 1,
 			.flags = IORESOURCE_MEM,
 		}, {
 			.start = data->irq,
diff --git a/arch/arm/plat-mxc/gpio.c b/arch/arm/plat-mxc/gpio.c
index 57d59855f9ec..7a107246fd98 100644
--- a/arch/arm/plat-mxc/gpio.c
+++ b/arch/arm/plat-mxc/gpio.c
@@ -175,7 +175,7 @@ static void mxc_gpio_irq_handler(struct mxc_gpio_port *port, u32 irq_stat)
 static void mx3_gpio_irq_handler(u32 irq, struct irq_desc *desc)
 {
 	u32 irq_stat;
-	struct mxc_gpio_port *port = get_irq_data(irq);
+	struct mxc_gpio_port *port = irq_get_handler_data(irq);
 
 	irq_stat = __raw_readl(port->base + GPIO_ISR) &
 			__raw_readl(port->base + GPIO_IMR);
@@ -188,7 +188,7 @@ static void mx2_gpio_irq_handler(u32 irq, struct irq_desc *desc)
 {
 	int i;
 	u32 irq_msk, irq_stat;
-	struct mxc_gpio_port *port = get_irq_data(irq);
+	struct mxc_gpio_port *port = irq_get_handler_data(irq);
 
 	/* walk through all interrupt status registers */
 	for (i = 0; i < gpio_table_size; i++) {
@@ -311,8 +311,8 @@ int __init mxc_gpio_init(struct mxc_gpio_port *port, int cnt)
 		__raw_writel(~0, port[i].base + GPIO_ISR);
 		for (j = port[i].virtual_irq_start;
 			j < port[i].virtual_irq_start + 32; j++) {
-			set_irq_chip(j, &gpio_irq_chip);
-			set_irq_handler(j, handle_level_irq);
+			irq_set_chip_and_handler(j, &gpio_irq_chip,
+						 handle_level_irq);
 			set_irq_flags(j, IRQF_VALID);
 		}
 
@@ -331,21 +331,23 @@ int __init mxc_gpio_init(struct mxc_gpio_port *port, int cnt)
 
 		if (cpu_is_mx1() || cpu_is_mx3() || cpu_is_mx25() || cpu_is_mx51()) {
 			/* setup one handler for each entry */
-			set_irq_chained_handler(port[i].irq, mx3_gpio_irq_handler);
-			set_irq_data(port[i].irq, &port[i]);
+			irq_set_chained_handler(port[i].irq,
+						mx3_gpio_irq_handler);
+			irq_set_handler_data(port[i].irq, &port[i]);
 			if (port[i].irq_high) {
 				/* setup handler for GPIO 16 to 31 */
-				set_irq_chained_handler(port[i].irq_high,
-						mx3_gpio_irq_handler);
-				set_irq_data(port[i].irq_high, &port[i]);
+				irq_set_chained_handler(port[i].irq_high,
+							mx3_gpio_irq_handler);
+				irq_set_handler_data(port[i].irq_high,
+						     &port[i]);
 			}
 		}
 	}
 
 	if (cpu_is_mx2()) {
 		/* setup one handler for all GPIO interrupts */
-		set_irq_chained_handler(port[0].irq, mx2_gpio_irq_handler);
-		set_irq_data(port[0].irq, port);
+		irq_set_chained_handler(port[0].irq, mx2_gpio_irq_handler);
+		irq_set_handler_data(port[0].irq, port);
 	}
 
 	return 0;
diff --git a/arch/arm/plat-mxc/include/mach/audmux.h b/arch/arm/plat-mxc/include/mach/audmux.h
index 5cd6466964af..6fda788ed0e9 100644
--- a/arch/arm/plat-mxc/include/mach/audmux.h
+++ b/arch/arm/plat-mxc/include/mach/audmux.h
@@ -15,6 +15,14 @@
 #define MX31_AUDMUX_PORT5_SSI_PINS_5	4
 #define MX31_AUDMUX_PORT6_SSI_PINS_6	5
 
+#define MX51_AUDMUX_PORT1_SSI0		0
+#define MX51_AUDMUX_PORT2_SSI1		1
+#define MX51_AUDMUX_PORT3		2
+#define MX51_AUDMUX_PORT4		3
+#define MX51_AUDMUX_PORT5		4
+#define MX51_AUDMUX_PORT6		5
+#define MX51_AUDMUX_PORT7		6
+
 /* Register definitions for the i.MX21/27 Digital Audio Multiplexer */
 #define MXC_AUDMUX_V1_PCR_INMMASK(x)	((x) & 0xff)
 #define MXC_AUDMUX_V1_PCR_INMEN		(1 << 8)
@@ -28,7 +36,7 @@
 #define MXC_AUDMUX_V1_PCR_TCLKDIR	(1 << 30)
 #define MXC_AUDMUX_V1_PCR_TFSDIR	(1 << 31)
 
-/* Register definitions for the i.MX25/31/35 Digital Audio Multiplexer */
+/* Register definitions for the i.MX25/31/35/51 Digital Audio Multiplexer */
 #define MXC_AUDMUX_V2_PTCR_TFSDIR	(1 << 31)
 #define MXC_AUDMUX_V2_PTCR_TFSEL(x)	(((x) & 0xf) << 27)
 #define MXC_AUDMUX_V2_PTCR_TCLKDIR	(1 << 26)
diff --git a/arch/arm/plat-mxc/include/mach/entry-macro.S b/arch/arm/plat-mxc/include/mach/entry-macro.S
index bd9bb9799141..2e49e71b1b98 100644
--- a/arch/arm/plat-mxc/include/mach/entry-macro.S
+++ b/arch/arm/plat-mxc/include/mach/entry-macro.S
@@ -33,9 +33,9 @@
 	.macro  arch_ret_to_user, tmp1, tmp2
 	.endm
 
-	@ this macro checks which interrupt occured
+	@ this macro checks which interrupt occurred
 	@ and returns its number in irqnr
-	@ and returns if an interrupt occured in irqstat
+	@ and returns if an interrupt occurred in irqstat
 	.macro	get_irqnr_and_base, irqnr, irqstat, base, tmp
 #ifndef CONFIG_MXC_TZIC
 	@ Load offset & priority of the highest priority
diff --git a/arch/arm/plat-mxc/include/mach/iomux-mx2x.h b/arch/arm/plat-mxc/include/mach/iomux-mx2x.h
index c4f116d214f2..7a9b20abda09 100644
--- a/arch/arm/plat-mxc/include/mach/iomux-mx2x.h
+++ b/arch/arm/plat-mxc/include/mach/iomux-mx2x.h
@@ -90,12 +90,12 @@
 #define PC31_PF_SSI3_CLK	(GPIO_PORTC | GPIO_PF | GPIO_IN | 31)
 #define PD17_PF_I2C_DATA	(GPIO_PORTD | GPIO_PF | GPIO_OUT | 17)
 #define PD18_PF_I2C_CLK		(GPIO_PORTD | GPIO_PF | GPIO_OUT | 18)
-#define PD19_PF_CSPI2_SS2	(GPIO_PORTD | GPIO_PF | 19)
-#define PD20_PF_CSPI2_SS1	(GPIO_PORTD | GPIO_PF | 20)
-#define PD21_PF_CSPI2_SS0	(GPIO_PORTD | GPIO_PF | 21)
-#define PD22_PF_CSPI2_SCLK	(GPIO_PORTD | GPIO_PF | 22)
-#define PD23_PF_CSPI2_MISO	(GPIO_PORTD | GPIO_PF | 23)
-#define PD24_PF_CSPI2_MOSI	(GPIO_PORTD | GPIO_PF | 24)
+#define PD19_PF_CSPI2_SS2	(GPIO_PORTD | GPIO_PF | GPIO_OUT | 19)
+#define PD20_PF_CSPI2_SS1	(GPIO_PORTD | GPIO_PF | GPIO_OUT | 20)
+#define PD21_PF_CSPI2_SS0	(GPIO_PORTD | GPIO_PF | GPIO_OUT | 21)
+#define PD22_PF_CSPI2_SCLK	(GPIO_PORTD | GPIO_PF | GPIO_OUT | 22)
+#define PD23_PF_CSPI2_MISO	(GPIO_PORTD | GPIO_PF | GPIO_IN | 23)
+#define PD24_PF_CSPI2_MOSI	(GPIO_PORTD | GPIO_PF | GPIO_OUT | 24)
 #define PD25_PF_CSPI1_RDY	(GPIO_PORTD | GPIO_PF | GPIO_OUT | 25)
 #define PD26_PF_CSPI1_SS2	(GPIO_PORTD | GPIO_PF | GPIO_OUT | 26)
 #define PD27_PF_CSPI1_SS1	(GPIO_PORTD | GPIO_PF | GPIO_OUT | 27)
diff --git a/arch/arm/plat-mxc/include/mach/mx50.h b/arch/arm/plat-mxc/include/mach/mx50.h
index aaec2a6e7b3a..5f2da75a47f4 100644
--- a/arch/arm/plat-mxc/include/mach/mx50.h
+++ b/arch/arm/plat-mxc/include/mach/mx50.h
@@ -282,4 +282,8 @@
 #define MX50_INT_APBHDMA_CHAN6	116
 #define MX50_INT_APBHDMA_CHAN7	117
 
+#if !defined(__ASSEMBLY__) && !defined(__MXC_BOOT_UNCOMPRESS)
+extern int mx50_revision(void);
+#endif
+
 #endif /* ifndef __MACH_MX50_H__ */
diff --git a/arch/arm/plat-mxc/include/mach/mx51.h b/arch/arm/plat-mxc/include/mach/mx51.h
index 1eb339e6c857..dede19a766ff 100644
--- a/arch/arm/plat-mxc/include/mach/mx51.h
+++ b/arch/arm/plat-mxc/include/mach/mx51.h
@@ -347,6 +347,7 @@
 
 #if !defined(__ASSEMBLY__) && !defined(__MXC_BOOT_UNCOMPRESS)
 extern int mx51_revision(void);
+extern void mx51_display_revision(void);
 #endif
 
 /* tape-out 1 defines */
diff --git a/arch/arm/plat-mxc/include/mach/mxc.h b/arch/arm/plat-mxc/include/mach/mxc.h
index 7e072637eefa..1aea818d9d31 100644
--- a/arch/arm/plat-mxc/include/mach/mxc.h
+++ b/arch/arm/plat-mxc/include/mach/mxc.h
@@ -51,6 +51,20 @@
 #define IMX_CHIP_REVISION_3_3		0x33
 #define IMX_CHIP_REVISION_UNKNOWN	0xff
 
+#define IMX_CHIP_REVISION_1_0_STRING		"1.0"
+#define IMX_CHIP_REVISION_1_1_STRING		"1.1"
+#define IMX_CHIP_REVISION_1_2_STRING		"1.2"
+#define IMX_CHIP_REVISION_1_3_STRING		"1.3"
+#define IMX_CHIP_REVISION_2_0_STRING		"2.0"
+#define IMX_CHIP_REVISION_2_1_STRING		"2.1"
+#define IMX_CHIP_REVISION_2_2_STRING		"2.2"
+#define IMX_CHIP_REVISION_2_3_STRING		"2.3"
+#define IMX_CHIP_REVISION_3_0_STRING		"3.0"
+#define IMX_CHIP_REVISION_3_1_STRING		"3.1"
+#define IMX_CHIP_REVISION_3_2_STRING		"3.2"
+#define IMX_CHIP_REVISION_3_3_STRING		"3.3"
+#define IMX_CHIP_REVISION_UNKNOWN_STRING	"unknown"
+
 #ifndef __ASSEMBLY__
 extern unsigned int __mxc_cpu_type;
 #endif
@@ -181,6 +195,15 @@ struct cpu_op {
 	u32 cpu_rate;
 };
 
+int tzic_enable_wake(int is_idle);
+enum mxc_cpu_pwr_mode {
+	WAIT_CLOCKED,		/* wfi only */
+	WAIT_UNCLOCKED,		/* WAIT */
+	WAIT_UNCLOCKED_POWER_OFF,	/* WAIT + SRPG */
+	STOP_POWER_ON,		/* just STOP */
+	STOP_POWER_OFF,		/* STOP + SRPG */
+};
+
 extern struct cpu_op *(*get_cpu_op)(int *op);
 #endif
 
diff --git a/arch/arm/plat-mxc/include/mach/mxc_nand.h b/arch/arm/plat-mxc/include/mach/mxc_nand.h
index 04c0d060d814..6bb96ef1600b 100644
--- a/arch/arm/plat-mxc/include/mach/mxc_nand.h
+++ b/arch/arm/plat-mxc/include/mach/mxc_nand.h
@@ -24,7 +24,7 @@
 
 struct mxc_nand_platform_data {
 	unsigned int width;	/* data bus width in bytes */
-	unsigned int hw_ecc:1;	/* 0 if supress hardware ECC */
+	unsigned int hw_ecc:1;	/* 0 if suppress hardware ECC */
 	unsigned int flash_bbt:1; /* set to 1 to use a flash based bbt */
 	struct mtd_partition *parts;	/* partition table */
 	int nr_parts;			/* size of parts */
diff --git a/arch/arm/plat-mxc/include/mach/system.h b/arch/arm/plat-mxc/include/mach/system.h
index 95be51bfe9a9..0417da9f710d 100644
--- a/arch/arm/plat-mxc/include/mach/system.h
+++ b/arch/arm/plat-mxc/include/mach/system.h
@@ -20,6 +20,8 @@
 #include <mach/hardware.h>
 #include <mach/common.h>
 
+extern void mx5_cpu_lp_set(enum mxc_cpu_pwr_mode mode);
+
 static inline void arch_idle(void)
 {
 #ifdef CONFIG_ARCH_MXC91231
@@ -54,7 +56,9 @@ static inline void arch_idle(void)
 			"orr %0, %0, #0x00000004\n"
 			"mcr p15, 0, %0, c1, c0, 0\n"
 			: "=r" (reg));
-	} else
+	} else if (cpu_is_mx51())
+		mx5_cpu_lp_set(WAIT_UNCLOCKED_POWER_OFF);
+	else
 		cpu_do_idle();
 }
 
diff --git a/arch/arm/plat-mxc/irq-common.c b/arch/arm/plat-mxc/irq-common.c
index 0c799ac27730..e1c6eff7258a 100644
--- a/arch/arm/plat-mxc/irq-common.c
+++ b/arch/arm/plat-mxc/irq-common.c
@@ -29,7 +29,7 @@ int imx_irq_set_priority(unsigned char irq, unsigned char prio)
 
 	ret = -ENOSYS;
 
-	base = get_irq_chip(irq);
+	base = irq_get_chip(irq);
 	if (base) {
 		chip = container_of(base, struct mxc_irq_chip, base);
 		if (chip->set_priority)
@@ -48,7 +48,7 @@ int mxc_set_irq_fiq(unsigned int irq, unsigned int type)
 
 	ret = -ENOSYS;
 
-	base = get_irq_chip(irq);
+	base = irq_get_chip(irq);
 	if (base) {
 		chip = container_of(base, struct mxc_irq_chip, base);
 		if (chip->set_irq_fiq)
diff --git a/arch/arm/plat-mxc/time.c b/arch/arm/plat-mxc/time.c
index 9f0c2610595e..2237ff8b434f 100644
--- a/arch/arm/plat-mxc/time.c
+++ b/arch/arm/plat-mxc/time.c
@@ -27,6 +27,7 @@
 #include <linux/clk.h>
 
 #include <mach/hardware.h>
+#include <asm/sched_clock.h>
 #include <asm/mach/time.h>
 #include <mach/common.h>
 
@@ -105,6 +106,11 @@ static void gpt_irq_acknowledge(void)
 		__raw_writel(V2_TSTAT_OF1, timer_base + V2_TSTAT);
 }
 
+static cycle_t dummy_get_cycles(struct clocksource *cs)
+{
+	return 0;
+}
+
 static cycle_t mx1_2_get_cycles(struct clocksource *cs)
 {
 	return __raw_readl(timer_base + MX1_2_TCN);
@@ -118,18 +124,35 @@ static cycle_t v2_get_cycles(struct clocksource *cs)
 static struct clocksource clocksource_mxc = {
 	.name 		= "mxc_timer1",
 	.rating		= 200,
-	.read		= mx1_2_get_cycles,
+	.read		= dummy_get_cycles,
 	.mask		= CLOCKSOURCE_MASK(32),
 	.flags		= CLOCK_SOURCE_IS_CONTINUOUS,
 };
 
+static DEFINE_CLOCK_DATA(cd);
+unsigned long long notrace sched_clock(void)
+{
+	cycle_t cyc = clocksource_mxc.read(&clocksource_mxc);
+
+	return cyc_to_sched_clock(&cd, cyc, (u32)~0);
+}
+
+static void notrace mxc_update_sched_clock(void)
+{
+	cycle_t cyc = clocksource_mxc.read(&clocksource_mxc);
+	update_sched_clock(&cd, cyc, (u32)~0);
+}
+
 static int __init mxc_clocksource_init(struct clk *timer_clk)
 {
 	unsigned int c = clk_get_rate(timer_clk);
 
 	if (timer_is_v2())
 		clocksource_mxc.read = v2_get_cycles;
+	else
+		clocksource_mxc.read = mx1_2_get_cycles;
 
+	init_sched_clock(&cd, mxc_update_sched_clock, 32, c);
 	clocksource_register_hz(&clocksource_mxc, c);
 
 	return 0;
diff --git a/arch/arm/plat-mxc/tzic.c b/arch/arm/plat-mxc/tzic.c
index bc3a6be8a27f..57f9395f87ce 100644
--- a/arch/arm/plat-mxc/tzic.c
+++ b/arch/arm/plat-mxc/tzic.c
@@ -167,8 +167,8 @@ void __init tzic_init_irq(void __iomem *irqbase)
 	/* all IRQ no FIQ Warning :: No selection */
 
 	for (i = 0; i < MXC_INTERNAL_IRQS; i++) {
-		set_irq_chip(i, &mxc_tzic_chip.base);
-		set_irq_handler(i, handle_level_irq);
+		irq_set_chip_and_handler(i, &mxc_tzic_chip.base,
+					 handle_level_irq);
 		set_irq_flags(i, IRQF_VALID);
 	}
 
diff --git a/arch/arm/plat-nomadik/gpio.c b/arch/arm/plat-nomadik/gpio.c
index 70620426ee55..f49748eca1a3 100644
--- a/arch/arm/plat-nomadik/gpio.c
+++ b/arch/arm/plat-nomadik/gpio.c
@@ -54,6 +54,7 @@ struct nmk_gpio_chip {
 	u32 rwimsc;
 	u32 fwimsc;
 	u32 slpm;
+	u32 enabled;
 };
 
 static struct nmk_gpio_chip *
@@ -318,7 +319,7 @@ static int __nmk_config_pins(pin_cfg_t *cfgs, int num, bool sleep)
 		struct nmk_gpio_chip *nmk_chip;
 		int pin = PIN_NUM(cfgs[i]);
 
-		nmk_chip = get_irq_chip_data(NOMADIK_GPIO_TO_IRQ(pin));
+		nmk_chip = irq_get_chip_data(NOMADIK_GPIO_TO_IRQ(pin));
 		if (!nmk_chip) {
 			ret = -EINVAL;
 			break;
@@ -397,7 +398,7 @@ int nmk_gpio_set_slpm(int gpio, enum nmk_gpio_slpm mode)
 	struct nmk_gpio_chip *nmk_chip;
 	unsigned long flags;
 
-	nmk_chip = get_irq_chip_data(NOMADIK_GPIO_TO_IRQ(gpio));
+	nmk_chip = irq_get_chip_data(NOMADIK_GPIO_TO_IRQ(gpio));
 	if (!nmk_chip)
 		return -EINVAL;
 
@@ -430,7 +431,7 @@ int nmk_gpio_set_pull(int gpio, enum nmk_gpio_pull pull)
 	struct nmk_gpio_chip *nmk_chip;
 	unsigned long flags;
 
-	nmk_chip = get_irq_chip_data(NOMADIK_GPIO_TO_IRQ(gpio));
+	nmk_chip = irq_get_chip_data(NOMADIK_GPIO_TO_IRQ(gpio));
 	if (!nmk_chip)
 		return -EINVAL;
 
@@ -456,7 +457,7 @@ int nmk_gpio_set_mode(int gpio, int gpio_mode)
 	struct nmk_gpio_chip *nmk_chip;
 	unsigned long flags;
 
-	nmk_chip = get_irq_chip_data(NOMADIK_GPIO_TO_IRQ(gpio));
+	nmk_chip = irq_get_chip_data(NOMADIK_GPIO_TO_IRQ(gpio));
 	if (!nmk_chip)
 		return -EINVAL;
 
@@ -473,7 +474,7 @@ int nmk_gpio_get_mode(int gpio)
 	struct nmk_gpio_chip *nmk_chip;
 	u32 afunc, bfunc, bit;
 
-	nmk_chip = get_irq_chip_data(NOMADIK_GPIO_TO_IRQ(gpio));
+	nmk_chip = irq_get_chip_data(NOMADIK_GPIO_TO_IRQ(gpio));
 	if (!nmk_chip)
 		return -EINVAL;
 
@@ -541,13 +542,6 @@ static void __nmk_gpio_irq_modify(struct nmk_gpio_chip *nmk_chip,
 static void __nmk_gpio_set_wake(struct nmk_gpio_chip *nmk_chip,
 				int gpio, bool on)
 {
-#ifdef CONFIG_ARCH_U8500
-	if (cpu_is_u8500v2()) {
-		__nmk_gpio_set_slpm(nmk_chip, gpio - nmk_chip->chip.base,
-				    on ? NMK_GPIO_SLPM_WAKEUP_ENABLE
-				       : NMK_GPIO_SLPM_WAKEUP_DISABLE);
-	}
-#endif
 	__nmk_gpio_irq_modify(nmk_chip, gpio, WAKE, on);
 }
 
@@ -564,6 +558,11 @@ static int nmk_gpio_irq_maskunmask(struct irq_data *d, bool enable)
 	if (!nmk_chip)
 		return -EINVAL;
 
+	if (enable)
+		nmk_chip->enabled |= bitmask;
+	else
+		nmk_chip->enabled &= ~bitmask;
+
 	spin_lock_irqsave(&nmk_gpio_slpm_lock, flags);
 	spin_lock(&nmk_chip->lock);
 
@@ -590,8 +589,6 @@ static void nmk_gpio_irq_unmask(struct irq_data *d)
 
 static int nmk_gpio_irq_set_wake(struct irq_data *d, unsigned int on)
 {
-	struct irq_desc *desc = irq_to_desc(d->irq);
-	bool enabled = !(desc->status & IRQ_DISABLED);
 	struct nmk_gpio_chip *nmk_chip;
 	unsigned long flags;
 	u32 bitmask;
@@ -606,7 +603,7 @@ static int nmk_gpio_irq_set_wake(struct irq_data *d, unsigned int on)
 	spin_lock_irqsave(&nmk_gpio_slpm_lock, flags);
 	spin_lock(&nmk_chip->lock);
 
-	if (!enabled)
+	if (!(nmk_chip->enabled & bitmask))
 		__nmk_gpio_set_wake(nmk_chip, gpio, on);
 
 	if (on)
@@ -622,9 +619,7 @@ static int nmk_gpio_irq_set_wake(struct irq_data *d, unsigned int on)
 
 static int nmk_gpio_irq_set_type(struct irq_data *d, unsigned int type)
 {
-	struct irq_desc *desc = irq_to_desc(d->irq);
-	bool enabled = !(desc->status & IRQ_DISABLED);
-	bool wake = desc->wake_depth;
+	bool enabled, wake = irqd_is_wakeup_set(d);
 	int gpio;
 	struct nmk_gpio_chip *nmk_chip;
 	unsigned long flags;
@@ -641,6 +636,8 @@ static int nmk_gpio_irq_set_type(struct irq_data *d, unsigned int type)
 	if (type & IRQ_TYPE_LEVEL_LOW)
 		return -EINVAL;
 
+	enabled = nmk_chip->enabled & bitmask;
+
 	spin_lock_irqsave(&nmk_chip->lock, flags);
 
 	if (enabled)
@@ -681,7 +678,7 @@ static void __nmk_gpio_irq_handler(unsigned int irq, struct irq_desc *desc,
 				   u32 status)
 {
 	struct nmk_gpio_chip *nmk_chip;
-	struct irq_chip *host_chip = get_irq_chip(irq);
+	struct irq_chip *host_chip = irq_get_chip(irq);
 	unsigned int first_irq;
 
 	if (host_chip->irq_mask_ack)
@@ -692,7 +689,7 @@ static void __nmk_gpio_irq_handler(unsigned int irq, struct irq_desc *desc,
 			host_chip->irq_ack(&desc->irq_data);
 	}
 
-	nmk_chip = get_irq_data(irq);
+	nmk_chip = irq_get_handler_data(irq);
 	first_irq = NOMADIK_GPIO_TO_IRQ(nmk_chip->chip.base);
 	while (status) {
 		int bit = __ffs(status);
@@ -706,7 +703,7 @@ static void __nmk_gpio_irq_handler(unsigned int irq, struct irq_desc *desc,
 
 static void nmk_gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
 {
-	struct nmk_gpio_chip *nmk_chip = get_irq_data(irq);
+	struct nmk_gpio_chip *nmk_chip = irq_get_handler_data(irq);
 	u32 status = readl(nmk_chip->addr + NMK_GPIO_IS);
 
 	__nmk_gpio_irq_handler(irq, desc, status);
@@ -715,7 +712,7 @@ static void nmk_gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
 static void nmk_gpio_secondary_irq_handler(unsigned int irq,
 					   struct irq_desc *desc)
 {
-	struct nmk_gpio_chip *nmk_chip = get_irq_data(irq);
+	struct nmk_gpio_chip *nmk_chip = irq_get_handler_data(irq);
 	u32 status = nmk_chip->get_secondary_status(nmk_chip->bank);
 
 	__nmk_gpio_irq_handler(irq, desc, status);
@@ -728,20 +725,20 @@ static int nmk_gpio_init_irq(struct nmk_gpio_chip *nmk_chip)
 
 	first_irq = NOMADIK_GPIO_TO_IRQ(nmk_chip->chip.base);
 	for (i = first_irq; i < first_irq + nmk_chip->chip.ngpio; i++) {
-		set_irq_chip(i, &nmk_gpio_irq_chip);
-		set_irq_handler(i, handle_edge_irq);
+		irq_set_chip_and_handler(i, &nmk_gpio_irq_chip,
+					 handle_edge_irq);
 		set_irq_flags(i, IRQF_VALID);
-		set_irq_chip_data(i, nmk_chip);
-		set_irq_type(i, IRQ_TYPE_EDGE_FALLING);
+		irq_set_chip_data(i, nmk_chip);
+		irq_set_irq_type(i, IRQ_TYPE_EDGE_FALLING);
 	}
 
-	set_irq_chained_handler(nmk_chip->parent_irq, nmk_gpio_irq_handler);
-	set_irq_data(nmk_chip->parent_irq, nmk_chip);
+	irq_set_chained_handler(nmk_chip->parent_irq, nmk_gpio_irq_handler);
+	irq_set_handler_data(nmk_chip->parent_irq, nmk_chip);
 
 	if (nmk_chip->secondary_parent_irq >= 0) {
-		set_irq_chained_handler(nmk_chip->secondary_parent_irq,
+		irq_set_chained_handler(nmk_chip->secondary_parent_irq,
 					nmk_gpio_secondary_irq_handler);
-		set_irq_data(nmk_chip->secondary_parent_irq, nmk_chip);
+		irq_set_handler_data(nmk_chip->secondary_parent_irq, nmk_chip);
 	}
 
 	return 0;
@@ -832,51 +829,6 @@ static void nmk_gpio_dbg_show(struct seq_file *s, struct gpio_chip *chip)
 				: "?  ",
 			(mode < 0) ? "unknown" : modes[mode],
 			pull ? "pull" : "none");
-
-		if (!is_out) {
-			int		irq = gpio_to_irq(gpio);
-			struct irq_desc	*desc = irq_to_desc(irq);
-
-			/* This races with request_irq(), set_irq_type(),
-			 * and set_irq_wake() ... but those are "rare".
-			 *
-			 * More significantly, trigger type flags aren't
-			 * currently maintained by genirq.
-			 */
-			if (irq >= 0 && desc->action) {
-				char *trigger;
-
-				switch (desc->status & IRQ_TYPE_SENSE_MASK) {
-				case IRQ_TYPE_NONE:
-					trigger = "(default)";
-					break;
-				case IRQ_TYPE_EDGE_FALLING:
-					trigger = "edge-falling";
-					break;
-				case IRQ_TYPE_EDGE_RISING:
-					trigger = "edge-rising";
-					break;
-				case IRQ_TYPE_EDGE_BOTH:
-					trigger = "edge-both";
-					break;
-				case IRQ_TYPE_LEVEL_HIGH:
-					trigger = "level-high";
-					break;
-				case IRQ_TYPE_LEVEL_LOW:
-					trigger = "level-low";
-					break;
-				default:
-					trigger = "?trigger?";
-					break;
-				}
-
-				seq_printf(s, " irq-%d %s%s",
-					irq, trigger,
-					(desc->status & IRQ_WAKEUP)
-						? " wakeup" : "");
-			}
-		}
-
 		seq_printf(s, "\n");
 	}
 }
diff --git a/arch/arm/plat-omap/devices.c b/arch/arm/plat-omap/devices.c
index 7d9f815cedec..ea28f98d5d6a 100644
--- a/arch/arm/plat-omap/devices.c
+++ b/arch/arm/plat-omap/devices.c
@@ -280,7 +280,7 @@ EXPORT_SYMBOL(omap_dsp_get_mempool_base);
  * Claiming GPIOs, and setting their direction and initial values, is the
  * responsibility of the device drivers.  So is responding to probe().
  *
- * Board-specific knowlege like creating devices or pin setup is to be
+ * Board-specific knowledge like creating devices or pin setup is to be
  * kept out of drivers as much as possible.  In particular, pin setup
  * may be handled by the boot loader, and drivers should expect it will
  * normally have been done by the time they're probed.
diff --git a/arch/arm/plat-omap/dma.c b/arch/arm/plat-omap/dma.c
index 2ec3b5d9f214..c22217c2ee5f 100644
--- a/arch/arm/plat-omap/dma.c
+++ b/arch/arm/plat-omap/dma.c
@@ -1019,7 +1019,7 @@ EXPORT_SYMBOL(omap_set_dma_callback);
  * If the channel is running the caller must disable interrupts prior calling
  * this function and process the returned value before re-enabling interrupt to
  * prevent races with the interrupt handler. Note that in continuous mode there
- * is a chance for CSSA_L register overflow inbetween the two reads resulting
+ * is a chance for CSSA_L register overflow between the two reads resulting
  * in incorrect return value.
  */
 dma_addr_t omap_get_dma_src_pos(int lch)
@@ -1046,7 +1046,7 @@ EXPORT_SYMBOL(omap_get_dma_src_pos);
  * If the channel is running the caller must disable interrupts prior calling
  * this function and process the returned value before re-enabling interrupt to
  * prevent races with the interrupt handler. Note that in continuous mode there
- * is a chance for CDSA_L register overflow inbetween the two reads resulting
+ * is a chance for CDSA_L register overflow between the two reads resulting
  * in incorrect return value.
  */
 dma_addr_t omap_get_dma_dst_pos(int lch)
diff --git a/arch/arm/plat-omap/gpio.c b/arch/arm/plat-omap/gpio.c
index 971d18636942..d2adcdda23cf 100644
--- a/arch/arm/plat-omap/gpio.c
+++ b/arch/arm/plat-omap/gpio.c
@@ -755,18 +755,12 @@ static int gpio_irq_type(struct irq_data *d, unsigned type)
 	bank = irq_data_get_irq_chip_data(d);
 	spin_lock_irqsave(&bank->lock, flags);
 	retval = _set_gpio_triggering(bank, get_gpio_index(gpio), type);
-	if (retval == 0) {
-		struct irq_desc *desc = irq_to_desc(d->irq);
-
-		desc->status &= ~IRQ_TYPE_SENSE_MASK;
-		desc->status |= type;
-	}
 	spin_unlock_irqrestore(&bank->lock, flags);
 
 	if (type & (IRQ_TYPE_LEVEL_LOW | IRQ_TYPE_LEVEL_HIGH))
-		__set_irq_handler_unlocked(d->irq, handle_level_irq);
+		__irq_set_handler_locked(d->irq, handle_level_irq);
 	else if (type & (IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_EDGE_RISING))
-		__set_irq_handler_unlocked(d->irq, handle_edge_irq);
+		__irq_set_handler_locked(d->irq, handle_edge_irq);
 
 	return retval;
 }
@@ -1146,7 +1140,7 @@ static void gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
 
 	desc->irq_data.chip->irq_ack(&desc->irq_data);
 
-	bank = get_irq_data(irq);
+	bank = irq_get_handler_data(irq);
 #ifdef CONFIG_ARCH_OMAP1
 	if (bank->method == METHOD_MPUIO)
 		isr_reg = bank->base +
@@ -1270,8 +1264,7 @@ static void gpio_unmask_irq(struct irq_data *d)
 	unsigned int gpio = d->irq - IH_GPIO_BASE;
 	struct gpio_bank *bank = irq_data_get_irq_chip_data(d);
 	unsigned int irq_mask = 1 << get_gpio_index(gpio);
-	struct irq_desc *desc = irq_to_desc(d->irq);
-	u32 trigger = desc->status & IRQ_TYPE_SENSE_MASK;
+	u32 trigger = irqd_get_trigger_type(d);
 
 	if (trigger)
 		_set_gpio_triggering(bank, get_gpio_index(gpio), trigger);
@@ -1672,19 +1665,17 @@ static void __init omap_gpio_chip_init(struct gpio_bank *bank)
 
 	for (j = bank->virtual_irq_start;
 		     j < bank->virtual_irq_start + bank_width; j++) {
-		struct irq_desc *d = irq_to_desc(j);
-
-		lockdep_set_class(&d->lock, &gpio_lock_class);
-		set_irq_chip_data(j, bank);
+		irq_set_lockdep_class(j, &gpio_lock_class);
+		irq_set_chip_data(j, bank);
 		if (bank_is_mpuio(bank))
-			set_irq_chip(j, &mpuio_irq_chip);
+			irq_set_chip(j, &mpuio_irq_chip);
 		else
-			set_irq_chip(j, &gpio_irq_chip);
-		set_irq_handler(j, handle_simple_irq);
+			irq_set_chip(j, &gpio_irq_chip);
+		irq_set_handler(j, handle_simple_irq);
 		set_irq_flags(j, IRQF_VALID);
 	}
-	set_irq_chained_handler(bank->irq, gpio_irq_handler);
-	set_irq_data(bank->irq, bank);
+	irq_set_chained_handler(bank->irq, gpio_irq_handler);
+	irq_set_handler_data(bank->irq, bank);
 }
 
 static int __devinit omap_gpio_probe(struct platform_device *pdev)
diff --git a/arch/arm/plat-omap/include/plat/gpio.h b/arch/arm/plat-omap/include/plat/gpio.h
index d6f9fa0f62af..cac2e8ac6968 100644
--- a/arch/arm/plat-omap/include/plat/gpio.h
+++ b/arch/arm/plat-omap/include/plat/gpio.h
@@ -93,7 +93,7 @@ extern void omap_gpio_restore_context(void);
 /* Wrappers for "new style" GPIO calls, using the new infrastructure
  * which lets us plug in FPGA, I2C, and other implementations.
  * *
- * The original OMAP-specfic calls should eventually be removed.
+ * The original OMAP-specific calls should eventually be removed.
  */
 
 #include <linux/errno.h>
diff --git a/arch/arm/plat-omap/include/plat/gpmc.h b/arch/arm/plat-omap/include/plat/gpmc.h
index 12b316165037..1527929b445a 100644
--- a/arch/arm/plat-omap/include/plat/gpmc.h
+++ b/arch/arm/plat-omap/include/plat/gpmc.h
@@ -90,7 +90,7 @@ enum omap_ecc {
 		/* 1-bit ecc: stored at end of spare area */
 	OMAP_ECC_HAMMING_CODE_DEFAULT = 0, /* Default, s/w method */
 	OMAP_ECC_HAMMING_CODE_HW, /* gpmc to detect the error */
-		/* 1-bit ecc: stored at begining of spare area as romcode */
+		/* 1-bit ecc: stored at beginning of spare area as romcode */
 	OMAP_ECC_HAMMING_CODE_HW_ROMCODE, /* gpmc method & romcode layout */
 };
 
diff --git a/arch/arm/plat-omap/include/plat/irqs.h b/arch/arm/plat-omap/include/plat/irqs.h
index d77928370463..5a25098ea7ea 100644
--- a/arch/arm/plat-omap/include/plat/irqs.h
+++ b/arch/arm/plat-omap/include/plat/irqs.h
@@ -416,7 +416,7 @@
 
 /* GPMC related */
 #define OMAP_GPMC_IRQ_BASE	(TWL_IRQ_END)
-#define OMAP_GPMC_NR_IRQS	7
+#define OMAP_GPMC_NR_IRQS	8
 #define OMAP_GPMC_IRQ_END	(OMAP_GPMC_IRQ_BASE + OMAP_GPMC_NR_IRQS)
 
 
diff --git a/arch/arm/plat-omap/include/plat/onenand.h b/arch/arm/plat-omap/include/plat/onenand.h
index cbe897ca7f9e..2858667d2e4f 100644
--- a/arch/arm/plat-omap/include/plat/onenand.h
+++ b/arch/arm/plat-omap/include/plat/onenand.h
@@ -32,6 +32,7 @@ struct omap_onenand_platform_data {
 	int			dma_channel;
 	u8			flags;
 	u8			regulator_can_sleep;
+	u8			skip_initial_unlocking;
 };
 
 #define ONENAND_MAX_PARTITIONS 8
diff --git a/arch/arm/plat-omap/mcbsp.c b/arch/arm/plat-omap/mcbsp.c
index d598d9fd65ac..5587acf0eb2c 100644
--- a/arch/arm/plat-omap/mcbsp.c
+++ b/arch/arm/plat-omap/mcbsp.c
@@ -1103,7 +1103,7 @@ int omap_mcbsp_pollread(unsigned int id, u16 *buf)
 		/* resend */
 		return -1;
 	} else {
-		/* wait for recieve confirmation */
+		/* wait for receive confirmation */
 		int attemps = 0;
 		while (!(MCBSP_READ(mcbsp, SPCR1) & RRDY)) {
 			if (attemps++ > 1000) {
diff --git a/arch/arm/plat-orion/gpio.c b/arch/arm/plat-orion/gpio.c
index 078894bc3b9a..a431a138f402 100644
--- a/arch/arm/plat-orion/gpio.c
+++ b/arch/arm/plat-orion/gpio.c
@@ -324,9 +324,8 @@ EXPORT_SYMBOL(orion_gpio_set_blink);
 static void gpio_irq_ack(struct irq_data *d)
 {
 	struct orion_gpio_chip *ochip = irq_data_get_irq_chip_data(d);
-	int type;
+	int type = irqd_get_trigger_type(d);
 
-	type = irq_desc[d->irq].status & IRQ_TYPE_SENSE_MASK;
 	if (type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING)) {
 		int pin = d->irq - ochip->secondary_irq_base;
 
@@ -337,11 +336,10 @@ static void gpio_irq_ack(struct irq_data *d)
 static void gpio_irq_mask(struct irq_data *d)
 {
 	struct orion_gpio_chip *ochip = irq_data_get_irq_chip_data(d);
-	int type;
+	int type = irqd_get_trigger_type(d);
 	void __iomem *reg;
 	int pin;
 
-	type = irq_desc[d->irq].status & IRQ_TYPE_SENSE_MASK;
 	if (type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING))
 		reg = GPIO_EDGE_MASK(ochip);
 	else
@@ -355,11 +353,10 @@ static void gpio_irq_mask(struct irq_data *d)
 static void gpio_irq_unmask(struct irq_data *d)
 {
 	struct orion_gpio_chip *ochip = irq_data_get_irq_chip_data(d);
-	int type;
+	int type = irqd_get_trigger_type(d);
 	void __iomem *reg;
 	int pin;
 
-	type = irq_desc[d->irq].status & IRQ_TYPE_SENSE_MASK;
 	if (type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING))
 		reg = GPIO_EDGE_MASK(ochip);
 	else
@@ -389,9 +386,9 @@ static int gpio_irq_set_type(struct irq_data *d, u32 type)
 	 * Set edge/level type.
 	 */
 	if (type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING)) {
-		set_irq_handler(d->irq, handle_edge_irq);
+		__irq_set_handler_locked(d->irq, handle_edge_irq);
 	} else if (type & (IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_LEVEL_LOW)) {
-		set_irq_handler(d->irq, handle_level_irq);
+		__irq_set_handler_locked(d->irq, handle_level_irq);
 	} else {
 		printk(KERN_ERR "failed to set irq=%d (type=%d)\n",
 		       d->irq, type);
@@ -477,10 +474,10 @@ void __init orion_gpio_init(int gpio_base, int ngpio,
 	for (i = 0; i < ngpio; i++) {
 		unsigned int irq = secondary_irq_base + i;
 
-		set_irq_chip(irq, &orion_gpio_irq_chip);
-		set_irq_handler(irq, handle_level_irq);
-		set_irq_chip_data(irq, ochip);
-		irq_desc[irq].status |= IRQ_LEVEL;
+		irq_set_chip_and_handler(irq, &orion_gpio_irq_chip,
+					 handle_level_irq);
+		irq_set_chip_data(irq, ochip);
+		irq_set_status_flags(irq, IRQ_LEVEL);
 		set_irq_flags(irq, IRQF_VALID);
 	}
 }
@@ -488,7 +485,7 @@ void __init orion_gpio_init(int gpio_base, int ngpio,
 void orion_gpio_irq_handler(int pinoff)
 {
 	struct orion_gpio_chip *ochip;
-	u32 cause;
+	u32 cause, type;
 	int i;
 
 	ochip = orion_gpio_chip_find(pinoff);
@@ -500,15 +497,14 @@ void orion_gpio_irq_handler(int pinoff)
 
 	for (i = 0; i < ochip->chip.ngpio; i++) {
 		int irq;
-		struct irq_desc *desc;
 
 		irq = ochip->secondary_irq_base + i;
 
 		if (!(cause & (1 << i)))
 			continue;
 
-		desc = irq_desc + irq;
-		if ((desc->status & IRQ_TYPE_SENSE_MASK) == IRQ_TYPE_EDGE_BOTH) {
+		type = irqd_get_trigger_type(irq_get_irq_data(irq));
+		if ((type & IRQ_TYPE_SENSE_MASK) == IRQ_TYPE_EDGE_BOTH) {
 			/* Swap polarity (race with GPIO line) */
 			u32 polarity;
 
@@ -516,7 +512,6 @@ void orion_gpio_irq_handler(int pinoff)
 			polarity ^= 1 << i;
 			writel(polarity, GPIO_IN_POL(ochip));
 		}
-
-		desc_handle_irq(irq, desc);
+		generic_handle_irq(irq);
 	}
 }
diff --git a/arch/arm/plat-orion/irq.c b/arch/arm/plat-orion/irq.c
index 7d0c7eb59f09..d8d638e09f8f 100644
--- a/arch/arm/plat-orion/irq.c
+++ b/arch/arm/plat-orion/irq.c
@@ -56,10 +56,10 @@ void __init orion_irq_init(unsigned int irq_start, void __iomem *maskaddr)
 	for (i = 0; i < 32; i++) {
 		unsigned int irq = irq_start + i;
 
-		set_irq_chip(irq, &orion_irq_chip);
-		set_irq_chip_data(irq, maskaddr);
-		set_irq_handler(irq, handle_level_irq);
-		irq_desc[irq].status |= IRQ_LEVEL;
+		irq_set_chip_and_handler(irq, &orion_irq_chip,
+					 handle_level_irq);
+		irq_set_chip_data(irq, maskaddr);
+		irq_set_status_flags(irq, IRQ_LEVEL);
 		set_irq_flags(irq, IRQF_VALID);
 	}
 }
diff --git a/arch/arm/plat-pxa/gpio.c b/arch/arm/plat-pxa/gpio.c
index e7de6ae2a1e8..dce088f45678 100644
--- a/arch/arm/plat-pxa/gpio.c
+++ b/arch/arm/plat-pxa/gpio.c
@@ -284,13 +284,13 @@ void __init pxa_init_gpio(int mux_irq, int start, int end, set_wake_t fn)
 	}
 
 	for (irq  = gpio_to_irq(start); irq <= gpio_to_irq(end); irq++) {
-		set_irq_chip(irq, &pxa_muxed_gpio_chip);
-		set_irq_handler(irq, handle_edge_irq);
+		irq_set_chip_and_handler(irq, &pxa_muxed_gpio_chip,
+					 handle_edge_irq);
 		set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
 	}
 
 	/* Install handler for GPIO>=2 edge detect interrupts */
-	set_irq_chained_handler(mux_irq, pxa_gpio_demux_handler);
+	irq_set_chained_handler(mux_irq, pxa_gpio_demux_handler);
 	pxa_muxed_gpio_chip.irq_set_wake = fn;
 }
 
diff --git a/arch/arm/plat-pxa/include/plat/mfp.h b/arch/arm/plat-pxa/include/plat/mfp.h
index 75f656471240..89e68e07b0a8 100644
--- a/arch/arm/plat-pxa/include/plat/mfp.h
+++ b/arch/arm/plat-pxa/include/plat/mfp.h
@@ -434,7 +434,7 @@ typedef unsigned long mfp_cfg_t;
  *
  * mfp_init_addr() - accepts a table of "mfp_addr_map" structure, which
  * represents a range of MFP pins from "start" to "end", with the offset
- * begining at "offset", to define a single pin, let "end" = -1.
+ * beginning at "offset", to define a single pin, let "end" = -1.
  *
  * use
  *
diff --git a/arch/arm/plat-pxa/include/plat/pxa3xx_nand.h b/arch/arm/plat-pxa/include/plat/pxa3xx_nand.h
index 01a8448e471c..442301fe48b4 100644
--- a/arch/arm/plat-pxa/include/plat/pxa3xx_nand.h
+++ b/arch/arm/plat-pxa/include/plat/pxa3xx_nand.h
@@ -30,6 +30,7 @@ struct pxa3xx_nand_cmdset {
 };
 
 struct pxa3xx_nand_flash {
+	char		*name;
 	uint32_t	chip_id;
 	unsigned int	page_per_block; /* Pages per block (PG_PER_BLK) */
 	unsigned int	page_size;	/* Page size in bytes (PAGE_SZ) */
@@ -37,7 +38,6 @@ struct pxa3xx_nand_flash {
 	unsigned int	dfc_width;	/* Width of flash controller(DWIDTH_C) */
 	unsigned int	num_blocks;	/* Number of physical blocks in Flash */
 
-	struct pxa3xx_nand_cmdset *cmdset;	/* NAND command set */
 	struct pxa3xx_nand_timing *timing;	/* NAND Flash timing */
 };
 
diff --git a/arch/arm/plat-s3c24xx/Makefile b/arch/arm/plat-s3c24xx/Makefile
index c2064c308719..0291bd6e236e 100644
--- a/arch/arm/plat-s3c24xx/Makefile
+++ b/arch/arm/plat-s3c24xx/Makefile
@@ -23,7 +23,7 @@ obj-$(CONFIG_S3C24XX_DCLK)	+= clock-dclk.o
 obj-$(CONFIG_CPU_FREQ_S3C24XX)	+= cpu-freq.o
 obj-$(CONFIG_CPU_FREQ_S3C24XX_DEBUGFS) += cpu-freq-debugfs.o
 
-# Architecture dependant builds
+# Architecture dependent builds
 
 obj-$(CONFIG_PM_SIMTEC)		+= pm-simtec.o
 obj-$(CONFIG_PM)		+= pm.o
diff --git a/arch/arm/plat-s3c24xx/cpu-freq.c b/arch/arm/plat-s3c24xx/cpu-freq.c
index eea75ff81d15..b3d3d0278997 100644
--- a/arch/arm/plat-s3c24xx/cpu-freq.c
+++ b/arch/arm/plat-s3c24xx/cpu-freq.c
@@ -455,7 +455,7 @@ static int s3c_cpufreq_resume(struct cpufreq_policy *policy)
 
 	/* whilst we will be called later on, we try and re-set the
 	 * cpu frequencies as soon as possible so that we do not end
-	 * up resuming devices and then immediatley having to re-set
+	 * up resuming devices and then immediately having to re-set
 	 * a number of settings once these devices have restarted.
 	 *
 	 * as a note, it is expected devices are not used until they
diff --git a/arch/arm/plat-s3c24xx/dma.c b/arch/arm/plat-s3c24xx/dma.c
index 6ad274e7593d..27ea852e3370 100644
--- a/arch/arm/plat-s3c24xx/dma.c
+++ b/arch/arm/plat-s3c24xx/dma.c
@@ -557,7 +557,7 @@ s3c2410_dma_lastxfer(struct s3c2410_dma_chan *chan)
 		break;
 
 	case S3C2410_DMALOAD_1LOADED_1RUNNING:
-		/* I belive in this case we do not have anything to do
+		/* I believe in this case we do not have anything to do
 		 * until the next buffer comes along, and we turn off the
 		 * reload */
 		return;
diff --git a/arch/arm/plat-s3c24xx/irq.c b/arch/arm/plat-s3c24xx/irq.c
index 4434cb56bd9a..9aee7e1668b1 100644
--- a/arch/arm/plat-s3c24xx/irq.c
+++ b/arch/arm/plat-s3c24xx/irq.c
@@ -592,8 +592,8 @@ void __init s3c24xx_init_irq(void)
 		case IRQ_UART1:
 		case IRQ_UART2:
 		case IRQ_ADCPARENT:
-			set_irq_chip(irqno, &s3c_irq_level_chip);
-			set_irq_handler(irqno, handle_level_irq);
+			irq_set_chip_and_handler(irqno, &s3c_irq_level_chip,
+						 handle_level_irq);
 			break;
 
 		case IRQ_RESERVED6:
@@ -603,35 +603,35 @@ void __init s3c24xx_init_irq(void)
 
 		default:
 			//irqdbf("registering irq %d (s3c irq)\n", irqno);
-			set_irq_chip(irqno, &s3c_irq_chip);
-			set_irq_handler(irqno, handle_edge_irq);
+			irq_set_chip_and_handler(irqno, &s3c_irq_chip,
+						 handle_edge_irq);
 			set_irq_flags(irqno, IRQF_VALID);
 		}
 	}
 
 	/* setup the cascade irq handlers */
 
-	set_irq_chained_handler(IRQ_EINT4t7, s3c_irq_demux_extint4t7);
-	set_irq_chained_handler(IRQ_EINT8t23, s3c_irq_demux_extint8);
+	irq_set_chained_handler(IRQ_EINT4t7, s3c_irq_demux_extint4t7);
+	irq_set_chained_handler(IRQ_EINT8t23, s3c_irq_demux_extint8);
 
-	set_irq_chained_handler(IRQ_UART0, s3c_irq_demux_uart0);
-	set_irq_chained_handler(IRQ_UART1, s3c_irq_demux_uart1);
-	set_irq_chained_handler(IRQ_UART2, s3c_irq_demux_uart2);
-	set_irq_chained_handler(IRQ_ADCPARENT, s3c_irq_demux_adc);
+	irq_set_chained_handler(IRQ_UART0, s3c_irq_demux_uart0);
+	irq_set_chained_handler(IRQ_UART1, s3c_irq_demux_uart1);
+	irq_set_chained_handler(IRQ_UART2, s3c_irq_demux_uart2);
+	irq_set_chained_handler(IRQ_ADCPARENT, s3c_irq_demux_adc);
 
 	/* external interrupts */
 
 	for (irqno = IRQ_EINT0; irqno <= IRQ_EINT3; irqno++) {
 		irqdbf("registering irq %d (ext int)\n", irqno);
-		set_irq_chip(irqno, &s3c_irq_eint0t4);
-		set_irq_handler(irqno, handle_edge_irq);
+		irq_set_chip_and_handler(irqno, &s3c_irq_eint0t4,
+					 handle_edge_irq);
 		set_irq_flags(irqno, IRQF_VALID);
 	}
 
 	for (irqno = IRQ_EINT4; irqno <= IRQ_EINT23; irqno++) {
 		irqdbf("registering irq %d (extended s3c irq)\n", irqno);
-		set_irq_chip(irqno, &s3c_irqext_chip);
-		set_irq_handler(irqno, handle_edge_irq);
+		irq_set_chip_and_handler(irqno, &s3c_irqext_chip,
+					 handle_edge_irq);
 		set_irq_flags(irqno, IRQF_VALID);
 	}
 
@@ -641,29 +641,28 @@ void __init s3c24xx_init_irq(void)
 
 	for (irqno = IRQ_S3CUART_RX0; irqno <= IRQ_S3CUART_ERR0; irqno++) {
 		irqdbf("registering irq %d (s3c uart0 irq)\n", irqno);
-		set_irq_chip(irqno, &s3c_irq_uart0);
-		set_irq_handler(irqno, handle_level_irq);
+		irq_set_chip_and_handler(irqno, &s3c_irq_uart0,
+					 handle_level_irq);
 		set_irq_flags(irqno, IRQF_VALID);
 	}
 
 	for (irqno = IRQ_S3CUART_RX1; irqno <= IRQ_S3CUART_ERR1; irqno++) {
 		irqdbf("registering irq %d (s3c uart1 irq)\n", irqno);
-		set_irq_chip(irqno, &s3c_irq_uart1);
-		set_irq_handler(irqno, handle_level_irq);
+		irq_set_chip_and_handler(irqno, &s3c_irq_uart1,
+					 handle_level_irq);
 		set_irq_flags(irqno, IRQF_VALID);
 	}
 
 	for (irqno = IRQ_S3CUART_RX2; irqno <= IRQ_S3CUART_ERR2; irqno++) {
 		irqdbf("registering irq %d (s3c uart2 irq)\n", irqno);
-		set_irq_chip(irqno, &s3c_irq_uart2);
-		set_irq_handler(irqno, handle_level_irq);
+		irq_set_chip_and_handler(irqno, &s3c_irq_uart2,
+					 handle_level_irq);
 		set_irq_flags(irqno, IRQF_VALID);
 	}
 
 	for (irqno = IRQ_TC; irqno <= IRQ_ADC; irqno++) {
 		irqdbf("registering irq %d (s3c adc irq)\n", irqno);
-		set_irq_chip(irqno, &s3c_irq_adc);
-		set_irq_handler(irqno, handle_edge_irq);
+		irq_set_chip_and_handler(irqno, &s3c_irq_adc, handle_edge_irq);
 		set_irq_flags(irqno, IRQF_VALID);
 	}
 
diff --git a/arch/arm/plat-s5p/cpu.c b/arch/arm/plat-s5p/cpu.c
index c3bfe9b13acf..5cf5e721e6ca 100644
--- a/arch/arm/plat-s5p/cpu.c
+++ b/arch/arm/plat-s5p/cpu.c
@@ -39,7 +39,7 @@ static const char name_exynos4210[] = "EXYNOS4210";
 static struct cpu_table cpu_ids[] __initdata = {
 	{
 		.idcode		= 0x56440100,
-		.idmask		= 0xffffff00,
+		.idmask		= 0xfffff000,
 		.map_io		= s5p6440_map_io,
 		.init_clocks	= s5p6440_init_clocks,
 		.init_uarts	= s5p6440_init_uarts,
@@ -47,7 +47,7 @@ static struct cpu_table cpu_ids[] __initdata = {
 		.name		= name_s5p6440,
 	}, {
 		.idcode		= 0x36442000,
-		.idmask		= 0xffffff00,
+		.idmask		= 0xfffff000,
 		.map_io		= s5p6442_map_io,
 		.init_clocks	= s5p6442_init_clocks,
 		.init_uarts	= s5p6442_init_uarts,
@@ -55,7 +55,7 @@ static struct cpu_table cpu_ids[] __initdata = {
 		.name		= name_s5p6442,
 	}, {
 		.idcode		= 0x36450000,
-		.idmask		= 0xffffff00,
+		.idmask		= 0xfffff000,
 		.map_io		= s5p6450_map_io,
 		.init_clocks	= s5p6450_init_clocks,
 		.init_uarts	= s5p6450_init_uarts,
@@ -79,7 +79,7 @@ static struct cpu_table cpu_ids[] __initdata = {
 		.name		= name_s5pv210,
 	}, {
 		.idcode		= 0x43210000,
-		.idmask		= 0xfffff000,
+		.idmask		= 0xfffe0000,
 		.map_io		= exynos4_map_io,
 		.init_clocks	= exynos4_init_clocks,
 		.init_uarts	= exynos4_init_uarts,
diff --git a/arch/arm/plat-s5p/irq-eint.c b/arch/arm/plat-s5p/irq-eint.c
index 225aa25405db..b5bb774985b0 100644
--- a/arch/arm/plat-s5p/irq-eint.c
+++ b/arch/arm/plat-s5p/irq-eint.c
@@ -205,15 +205,14 @@ int __init s5p_init_irq_eint(void)
 	int irq;
 
 	for (irq = IRQ_EINT(0); irq <= IRQ_EINT(15); irq++)
-		set_irq_chip(irq, &s5p_irq_vic_eint);
+		irq_set_chip(irq, &s5p_irq_vic_eint);
 
 	for (irq = IRQ_EINT(16); irq <= IRQ_EINT(31); irq++) {
-		set_irq_chip(irq, &s5p_irq_eint);
-		set_irq_handler(irq, handle_level_irq);
+		irq_set_chip_and_handler(irq, &s5p_irq_eint, handle_level_irq);
 		set_irq_flags(irq, IRQF_VALID);
 	}
 
-	set_irq_chained_handler(IRQ_EINT16_31, s5p_irq_demux_eint16_31);
+	irq_set_chained_handler(IRQ_EINT16_31, s5p_irq_demux_eint16_31);
 	return 0;
 }
 
diff --git a/arch/arm/plat-s5p/irq-gpioint.c b/arch/arm/plat-s5p/irq-gpioint.c
index cd87d3256e03..cd6d67c8382a 100644
--- a/arch/arm/plat-s5p/irq-gpioint.c
+++ b/arch/arm/plat-s5p/irq-gpioint.c
@@ -43,13 +43,13 @@ LIST_HEAD(banks);
 
 static int s5p_gpioint_get_offset(struct irq_data *data)
 {
-	struct s3c_gpio_chip *chip = irq_data_get_irq_data(data);
+	struct s3c_gpio_chip *chip = irq_data_get_irq_handler_data(data);
 	return data->irq - chip->irq_base;
 }
 
 static void s5p_gpioint_ack(struct irq_data *data)
 {
-	struct s3c_gpio_chip *chip = irq_data_get_irq_data(data);
+	struct s3c_gpio_chip *chip = irq_data_get_irq_handler_data(data);
 	int group, offset, pend_offset;
 	unsigned int value;
 
@@ -64,7 +64,7 @@ static void s5p_gpioint_ack(struct irq_data *data)
 
 static void s5p_gpioint_mask(struct irq_data *data)
 {
-	struct s3c_gpio_chip *chip = irq_data_get_irq_data(data);
+	struct s3c_gpio_chip *chip = irq_data_get_irq_handler_data(data);
 	int group, offset, mask_offset;
 	unsigned int value;
 
@@ -79,7 +79,7 @@ static void s5p_gpioint_mask(struct irq_data *data)
 
 static void s5p_gpioint_unmask(struct irq_data *data)
 {
-	struct s3c_gpio_chip *chip = irq_data_get_irq_data(data);
+	struct s3c_gpio_chip *chip = irq_data_get_irq_handler_data(data);
 	int group, offset, mask_offset;
 	unsigned int value;
 
@@ -100,7 +100,7 @@ static void s5p_gpioint_mask_ack(struct irq_data *data)
 
 static int s5p_gpioint_set_type(struct irq_data *data, unsigned int type)
 {
-	struct s3c_gpio_chip *chip = irq_data_get_irq_data(data);
+	struct s3c_gpio_chip *chip = irq_data_get_irq_handler_data(data);
 	int group, offset, con_offset;
 	unsigned int value;
 
@@ -149,7 +149,7 @@ static struct irq_chip s5p_gpioint = {
 
 static void s5p_gpioint_handler(unsigned int irq, struct irq_desc *desc)
 {
-	struct s5p_gpioint_bank *bank = get_irq_data(irq);
+	struct s5p_gpioint_bank *bank = irq_get_handler_data(irq);
 	int group, pend_offset, mask_offset;
 	unsigned int pend, mask;
 
@@ -200,15 +200,15 @@ static __init int s5p_gpioint_add(struct s3c_gpio_chip *chip)
 		if (!bank->chips)
 			return -ENOMEM;
 
-		set_irq_chained_handler(bank->irq, s5p_gpioint_handler);
-		set_irq_data(bank->irq, bank);
+		irq_set_chained_handler(bank->irq, s5p_gpioint_handler);
+		irq_set_handler_data(bank->irq, bank);
 		bank->handler = s5p_gpioint_handler;
 		printk(KERN_INFO "Registered chained gpio int handler for interrupt %d.\n",
 		       bank->irq);
 	}
 
 	/*
-	 * chained GPIO irq has been sucessfully registered, allocate new gpio
+	 * chained GPIO irq has been successfully registered, allocate new gpio
 	 * int group and assign irq nubmers
 	 */
 
@@ -219,9 +219,9 @@ static __init int s5p_gpioint_add(struct s3c_gpio_chip *chip)
 	bank->chips[group - bank->start] = chip;
 	for (i = 0; i < chip->chip.ngpio; i++) {
 		irq = chip->irq_base + i;
-		set_irq_chip(irq, &s5p_gpioint);
-		set_irq_data(irq, chip);
-		set_irq_handler(irq, handle_level_irq);
+		irq_set_chip(irq, &s5p_gpioint);
+		irq_set_handler_data(irq, chip);
+		irq_set_handler(irq, handle_level_irq);
 		set_irq_flags(irq, IRQF_VALID);
 	}
 	return 0;
diff --git a/arch/arm/plat-samsung/include/plat/clock.h b/arch/arm/plat-samsung/include/plat/clock.h
index 9a82b8874918..983c578b8276 100644
--- a/arch/arm/plat-samsung/include/plat/clock.h
+++ b/arch/arm/plat-samsung/include/plat/clock.h
@@ -21,7 +21,7 @@ struct clk;
  * @set_parent: set the clock's parent, see clk_set_parent().
  *
  * Group the common clock implementations together so that we
- * don't have to keep setting the same fiels again. We leave
+ * don't have to keep setting the same fields again. We leave
  * enable in struct clk.
  *
  * Adding an extra layer of indirection into the process should
diff --git a/arch/arm/plat-samsung/include/plat/gpio-cfg-helpers.h b/arch/arm/plat-samsung/include/plat/gpio-cfg-helpers.h
index 5603db0b79bc..3ad8386599c3 100644
--- a/arch/arm/plat-samsung/include/plat/gpio-cfg-helpers.h
+++ b/arch/arm/plat-samsung/include/plat/gpio-cfg-helpers.h
@@ -114,7 +114,7 @@ extern unsigned s3c_gpio_getcfg_s3c24xx_a(struct s3c_gpio_chip *chip,
  * of control per GPIO, generally in the form of:
  *	0000 = Input
  *	0001 = Output
- *	others = Special functions (dependant on bank)
+ *	others = Special functions (dependent on bank)
  *
  * Note, since the code to deal with the case where there are two control
  * registers instead of one, we do not have a separate set of functions for
diff --git a/arch/arm/plat-samsung/include/plat/gpio-cfg.h b/arch/arm/plat-samsung/include/plat/gpio-cfg.h
index 5e04fa6eda74..1762dcb4cb9e 100644
--- a/arch/arm/plat-samsung/include/plat/gpio-cfg.h
+++ b/arch/arm/plat-samsung/include/plat/gpio-cfg.h
@@ -125,7 +125,7 @@ extern int s3c_gpio_cfgpin_range(unsigned int start, unsigned int nr,
  *
  * These values control the state of the weak pull-{up,down} resistors
  * available on most pins on the S3C series. Not all chips support both
- * up or down settings, and it may be dependant on the chip that is being
+ * up or down settings, and it may be dependent on the chip that is being
  * used to whether the particular mode is available.
  */
 #define S3C_GPIO_PULL_NONE	((__force s3c_gpio_pull_t)0x00)
@@ -138,7 +138,7 @@ extern int s3c_gpio_cfgpin_range(unsigned int start, unsigned int nr,
  * @pull: The configuration for the pull resistor.
  *
  * This function sets the state of the pull-{up,down} resistor for the
- * specified pin. It will return 0 if successfull, or a negative error
+ * specified pin. It will return 0 if successful, or a negative error
  * code if the pin cannot support the requested pull setting.
  *
  * @pull is one of S3C_GPIO_PULL_NONE, S3C_GPIO_PULL_DOWN or S3C_GPIO_PULL_UP.
@@ -202,7 +202,7 @@ extern s5p_gpio_drvstr_t s5p_gpio_get_drvstr(unsigned int pin);
  * @drvstr: The new value of the driver strength
  *
  * This function sets the driver strength value for the specified pin.
- * It will return 0 if successfull, or a negative error code if the pin
+ * It will return 0 if successful, or a negative error code if the pin
  * cannot support the requested setting.
 */
 extern int s5p_gpio_set_drvstr(unsigned int pin, s5p_gpio_drvstr_t drvstr);
diff --git a/arch/arm/plat-samsung/include/plat/gpio-core.h b/arch/arm/plat-samsung/include/plat/gpio-core.h
index dac35d0a711d..8cad4cf19c3c 100644
--- a/arch/arm/plat-samsung/include/plat/gpio-core.h
+++ b/arch/arm/plat-samsung/include/plat/gpio-core.h
@@ -108,7 +108,7 @@ extern void s3c_gpiolib_add(struct s3c_gpio_chip *chip);
  * of control per GPIO, generally in the form of:
  * 0000 = Input
  * 0001 = Output
- * others = Special functions (dependant on bank)
+ * others = Special functions (dependent on bank)
  *
  * Note, since the code to deal with the case where there are two control
  * registers instead of one, we do not have a separate set of function
diff --git a/arch/arm/plat-samsung/include/plat/sdhci.h b/arch/arm/plat-samsung/include/plat/sdhci.h
index b0bdf16549d5..058e09654fe8 100644
--- a/arch/arm/plat-samsung/include/plat/sdhci.h
+++ b/arch/arm/plat-samsung/include/plat/sdhci.h
@@ -57,7 +57,7 @@ enum clk_types {
  * @cfg_gpio: Configure the GPIO for a specific card bit-width
  * @cfg_card: Configure the interface for a specific card and speed. This
  *            is necessary the controllers and/or GPIO blocks require the
- *	      changing of driver-strength and other controls dependant on
+ *	      changing of driver-strength and other controls dependent on
  *	      the card and speed of operation.
  *
  * Initialisation data specific to either the machine or the platform
@@ -108,7 +108,7 @@ extern struct s3c_sdhci_platdata s3c_hsmmc1_def_platdata;
 extern struct s3c_sdhci_platdata s3c_hsmmc2_def_platdata;
 extern struct s3c_sdhci_platdata s3c_hsmmc3_def_platdata;
 
-/* Helper function availablity */
+/* Helper function availability */
 
 extern void s3c2416_setup_sdhci0_cfg_gpio(struct platform_device *, int w);
 extern void s3c2416_setup_sdhci1_cfg_gpio(struct platform_device *, int w);
diff --git a/arch/arm/plat-samsung/init.c b/arch/arm/plat-samsung/init.c
index 6790edfaca6f..79d10fca9090 100644
--- a/arch/arm/plat-samsung/init.c
+++ b/arch/arm/plat-samsung/init.c
@@ -36,7 +36,7 @@ static struct cpu_table * __init s3c_lookup_cpu(unsigned long idcode,
 						unsigned int count)
 {
 	for (; count != 0; count--, tab++) {
-		if ((idcode & tab->idmask) == tab->idcode)
+		if ((idcode & tab->idmask) == (tab->idcode & tab->idmask))
 			return tab;
 	}
 
diff --git a/arch/arm/plat-samsung/irq-uart.c b/arch/arm/plat-samsung/irq-uart.c
index 4e770355ccbc..4d4e571af553 100644
--- a/arch/arm/plat-samsung/irq-uart.c
+++ b/arch/arm/plat-samsung/irq-uart.c
@@ -107,7 +107,6 @@ static struct irq_chip s3c_irq_uart = {
 
 static void __init s3c_init_uart_irq(struct s3c_uart_irq *uirq)
 {
-	struct irq_desc *desc = irq_to_desc(uirq->parent_irq);
 	void __iomem *reg_base = uirq->regs;
 	unsigned int irq;
 	int offs;
@@ -118,14 +117,13 @@ static void __init s3c_init_uart_irq(struct s3c_uart_irq *uirq)
 	for (offs = 0; offs < 3; offs++) {
 		irq = uirq->base_irq + offs;
 
-		set_irq_chip(irq, &s3c_irq_uart);
-		set_irq_chip_data(irq, uirq);
-		set_irq_handler(irq, handle_level_irq);
+		irq_set_chip_and_handler(irq, &s3c_irq_uart, handle_level_irq);
+		irq_set_chip_data(irq, uirq);
 		set_irq_flags(irq, IRQF_VALID);
 	}
 
-	desc->irq_data.handler_data = uirq;
-	set_irq_chained_handler(uirq->parent_irq, s3c_irq_demux_uart);
+	irq_set_handler_data(uirq->parent_irq, uirq);
+	irq_set_chained_handler(uirq->parent_irq, s3c_irq_demux_uart);
 }
 
 /**
diff --git a/arch/arm/plat-samsung/irq-vic-timer.c b/arch/arm/plat-samsung/irq-vic-timer.c
index dd8692ae5c4c..d6ad66ab9290 100644
--- a/arch/arm/plat-samsung/irq-vic-timer.c
+++ b/arch/arm/plat-samsung/irq-vic-timer.c
@@ -77,14 +77,11 @@ static struct irq_chip s3c_irq_timer = {
 void __init s3c_init_vic_timer_irq(unsigned int parent_irq,
 				   unsigned int timer_irq)
 {
-	struct irq_desc *desc = irq_to_desc(parent_irq);
 
-	set_irq_chained_handler(parent_irq, s3c_irq_demux_vic_timer);
+	irq_set_chained_handler(parent_irq, s3c_irq_demux_vic_timer);
+	irq_set_handler_data(parent_irq, (void *)timer_irq);
 
-	set_irq_chip(timer_irq, &s3c_irq_timer);
-	set_irq_chip_data(timer_irq, (void *)(1 << (timer_irq - IRQ_TIMER0)));
-	set_irq_handler(timer_irq, handle_level_irq);
+	irq_set_chip_and_handler(timer_irq, &s3c_irq_timer, handle_level_irq);
+	irq_set_chip_data(timer_irq, (void *)(1 << (timer_irq - IRQ_TIMER0)));
 	set_irq_flags(timer_irq, IRQF_VALID);
-
-	desc->irq_data.handler_data = (void *)timer_irq;
 }
diff --git a/arch/arm/plat-samsung/s3c-pl330.c b/arch/arm/plat-samsung/s3c-pl330.c
index b4ff8d74ac40..f85638c6f5ae 100644
--- a/arch/arm/plat-samsung/s3c-pl330.c
+++ b/arch/arm/plat-samsung/s3c-pl330.c
@@ -68,7 +68,7 @@ struct s3c_pl330_xfer {
  * @req: Two requests to communicate with the PL330 engine.
  * @callback_fn: Callback function to the client.
  * @rqcfg: Channel configuration for the xfers.
- * @xfer_head: Pointer to the xfer to be next excecuted.
+ * @xfer_head: Pointer to the xfer to be next executed.
  * @dmac: Pointer to the DMAC that manages this channel, NULL if the
  * 	channel is available to be acquired.
  * @client: Client of this channel. NULL if the
diff --git a/arch/arm/plat-samsung/wakeup-mask.c b/arch/arm/plat-samsung/wakeup-mask.c
index 2e09b6ad84ca..dc814037297b 100644
--- a/arch/arm/plat-samsung/wakeup-mask.c
+++ b/arch/arm/plat-samsung/wakeup-mask.c
@@ -22,7 +22,7 @@
 void samsung_sync_wakemask(void __iomem *reg,
 			   struct samsung_wakeup_mask *mask, int nr_mask)
 {
-	struct irq_desc *desc;
+	struct irq_data *data;
 	u32 val;
 
 	val = __raw_readl(reg);
@@ -33,10 +33,10 @@ void samsung_sync_wakemask(void __iomem *reg,
 			continue;
 		}
 
-		desc = irq_to_desc(mask->irq);
+		data = irq_get_irq_data(mask->irq);
 
-		/* bit of a liberty to read this directly from irq_desc. */
-		if (desc->wake_depth > 0)
+		/* bit of a liberty to read this directly from irq_data. */
+		if (irqd_is_wakeup_set(data))
 			val &= ~mask->bit;
 		else
 			val |= mask->bit;
diff --git a/arch/arm/plat-spear/include/plat/clock.h b/arch/arm/plat-spear/include/plat/clock.h
index 2ae6606930a6..fcc0d0ad4a1f 100644
--- a/arch/arm/plat-spear/include/plat/clock.h
+++ b/arch/arm/plat-spear/include/plat/clock.h
@@ -89,7 +89,7 @@ struct rate_config {
  * @sibling: node for list of clocks having same parents
  * @private_data: clock specific private data
  * @node: list to maintain clocks linearly
- * @cl: clocklook up assoicated with this clock
+ * @cl: clocklook up associated with this clock
  * @dent: object for debugfs
  */
 struct clk {
diff --git a/arch/arm/plat-spear/shirq.c b/arch/arm/plat-spear/shirq.c
index 78189035e7f1..961fb7261243 100644
--- a/arch/arm/plat-spear/shirq.c
+++ b/arch/arm/plat-spear/shirq.c
@@ -68,7 +68,7 @@ static struct irq_chip shirq_chip = {
 static void shirq_handler(unsigned irq, struct irq_desc *desc)
 {
 	u32 i, val, mask;
-	struct spear_shirq *shirq = get_irq_data(irq);
+	struct spear_shirq *shirq = irq_get_handler_data(irq);
 
 	desc->irq_data.chip->irq_ack(&desc->irq_data);
 	while ((val = readl(shirq->regs.base + shirq->regs.status_reg) &
@@ -105,14 +105,14 @@ int spear_shirq_register(struct spear_shirq *shirq)
 	if (!shirq->dev_count)
 		return -EINVAL;
 
-	set_irq_chained_handler(shirq->irq, shirq_handler);
+	irq_set_chained_handler(shirq->irq, shirq_handler);
 	for (i = 0; i < shirq->dev_count; i++) {
-		set_irq_chip(shirq->dev_config[i].virq, &shirq_chip);
-		set_irq_handler(shirq->dev_config[i].virq, handle_simple_irq);
+		irq_set_chip_and_handler(shirq->dev_config[i].virq,
+					 &shirq_chip, handle_simple_irq);
 		set_irq_flags(shirq->dev_config[i].virq, IRQF_VALID);
-		set_irq_chip_data(shirq->dev_config[i].virq, shirq);
+		irq_set_chip_data(shirq->dev_config[i].virq, shirq);
 	}
 
-	set_irq_data(shirq->irq, shirq);
+	irq_set_handler_data(shirq->irq, shirq);
 	return 0;
 }
diff --git a/arch/arm/plat-stmp3xxx/irq.c b/arch/arm/plat-stmp3xxx/irq.c
index aaa168683d4e..6fdf9acf82ed 100644
--- a/arch/arm/plat-stmp3xxx/irq.c
+++ b/arch/arm/plat-stmp3xxx/irq.c
@@ -35,8 +35,7 @@ void __init stmp3xxx_init_irq(struct irq_chip *chip)
 	/* Disable all interrupts initially */
 	for (i = 0; i < NR_REAL_IRQS; i++) {
 		chip->irq_mask(irq_get_irq_data(i));
-		set_irq_chip(i, chip);
-		set_irq_handler(i, handle_level_irq);
+		irq_set_chip_and_handler(i, chip, handle_level_irq);
 		set_irq_flags(i, IRQF_VALID | IRQF_PROBE);
 	}
 
diff --git a/arch/arm/plat-stmp3xxx/pinmux.c b/arch/arm/plat-stmp3xxx/pinmux.c
index 66d5bac3ace2..3def03b3217d 100644
--- a/arch/arm/plat-stmp3xxx/pinmux.c
+++ b/arch/arm/plat-stmp3xxx/pinmux.c
@@ -489,14 +489,13 @@ static void stmp3xxx_gpio_free(struct gpio_chip *chip, unsigned offset)
 
 static void stmp3xxx_gpio_irq(u32 irq, struct irq_desc *desc)
 {
-	struct stmp3xxx_pinmux_bank *pm = get_irq_data(irq);
+	struct stmp3xxx_pinmux_bank *pm = irq_get_handler_data(irq);
 	int gpio_irq = pm->virq;
 	u32 stat = __raw_readl(pm->irqstat);
 
 	while (stat) {
 		if (stat & 1)
-			irq_desc[gpio_irq].handle_irq(gpio_irq,
-				&irq_desc[gpio_irq]);
+			generic_handle_irq(gpio_irq);
 		gpio_irq++;
 		stat >>= 1;
 	}
@@ -534,15 +533,15 @@ int __init stmp3xxx_pinmux_init(int virtual_irq_start)
 
 		for (virq = pm->virq; virq < pm->virq; virq++) {
 			gpio_irq_chip.irq_mask(irq_get_irq_data(virq));
-			set_irq_chip(virq, &gpio_irq_chip);
-			set_irq_handler(virq, handle_level_irq);
+			irq_set_chip_and_handler(virq, &gpio_irq_chip,
+						 handle_level_irq);
 			set_irq_flags(virq, IRQF_VALID);
 		}
 		r = gpiochip_add(&pm->chip);
 		if (r < 0)
 			break;
-		set_irq_chained_handler(pm->irq, stmp3xxx_gpio_irq);
-		set_irq_data(pm->irq, pm);
+		irq_set_chained_handler(pm->irq, stmp3xxx_gpio_irq);
+		irq_set_handler_data(pm->irq, pm);
 	}
 	return r;
 }
diff --git a/arch/arm/plat-versatile/fpga-irq.c b/arch/arm/plat-versatile/fpga-irq.c
index 31d945d37e4f..f0cc8e19b094 100644
--- a/arch/arm/plat-versatile/fpga-irq.c
+++ b/arch/arm/plat-versatile/fpga-irq.c
@@ -30,7 +30,7 @@ static void fpga_irq_unmask(struct irq_data *d)
 
 static void fpga_irq_handle(unsigned int irq, struct irq_desc *desc)
 {
-	struct fpga_irq_data *f = get_irq_desc_data(desc);
+	struct fpga_irq_data *f = irq_desc_get_handler_data(desc);
 	u32 status = readl(f->base + IRQ_STATUS);
 
 	if (status == 0) {
@@ -55,17 +55,17 @@ void __init fpga_irq_init(int parent_irq, u32 valid, struct fpga_irq_data *f)
 	f->chip.irq_unmask = fpga_irq_unmask;
 
 	if (parent_irq != -1) {
-		set_irq_data(parent_irq, f);
-		set_irq_chained_handler(parent_irq, fpga_irq_handle);
+		irq_set_handler_data(parent_irq, f);
+		irq_set_chained_handler(parent_irq, fpga_irq_handle);
 	}
 
 	for (i = 0; i < 32; i++) {
 		if (valid & (1 << i)) {
 			unsigned int irq = f->irq_start + i;
 
-			set_irq_chip_data(irq, f);
-			set_irq_chip(irq, &f->chip);
-			set_irq_handler(irq, handle_level_irq);
+			irq_set_chip_data(irq, f);
+			irq_set_chip_and_handler(irq, &f->chip,
+						 handle_level_irq);
 			set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
 		}
 	}
diff --git a/arch/avr32/Kconfig b/arch/avr32/Kconfig
index cd2062fe0f61..e9d689b7c833 100644
--- a/arch/avr32/Kconfig
+++ b/arch/avr32/Kconfig
@@ -6,6 +6,10 @@ config AVR32
 	select HAVE_CLK
 	select HAVE_OPROFILE
 	select HAVE_KPROBES
+	select HAVE_GENERIC_HARDIRQS
+	select GENERIC_IRQ_PROBE
+	select HARDIRQS_SW_RESEND
+	select GENERIC_IRQ_SHOW
 	help
 	  AVR32 is a high-performance 32-bit RISC microprocessor core,
 	  designed for cost-sensitive embedded applications, with particular
@@ -17,9 +21,6 @@ config AVR32
 config GENERIC_GPIO
 	def_bool y
 
-config GENERIC_HARDIRQS
-	def_bool y
-
 config STACKTRACE_SUPPORT
 	def_bool y
 
@@ -29,12 +30,6 @@ config LOCKDEP_SUPPORT
 config TRACE_IRQFLAGS_SUPPORT
 	def_bool y
 
-config HARDIRQS_SW_RESEND
-	def_bool y
-
-config GENERIC_IRQ_PROBE
-	def_bool y
-
 config RWSEM_GENERIC_SPINLOCK
 	def_bool y
 
diff --git a/arch/avr32/boards/atngw100/mrmt.c b/arch/avr32/boards/atngw100/mrmt.c
index 7919be311f4a..f91431963452 100644
--- a/arch/avr32/boards/atngw100/mrmt.c
+++ b/arch/avr32/boards/atngw100/mrmt.c
@@ -301,7 +301,7 @@ static int __init mrmt1_init(void)
 	/* Select the Touchscreen interrupt pin mode */
 	at32_select_periph( GPIO_PIOB_BASE, 1 << (PB_EXTINT_BASE+TS_IRQ),
 			GPIO_PERIPH_A, AT32_GPIOF_DEGLITCH);
-	set_irq_type( AT32_EXTINT(TS_IRQ), IRQ_TYPE_EDGE_FALLING );
+	irq_set_irq_type(AT32_EXTINT(TS_IRQ), IRQ_TYPE_EDGE_FALLING);
 	at32_spi_setup_slaves(0,spi01_board_info,ARRAY_SIZE(spi01_board_info));
 	spi_register_board_info(spi01_board_info,ARRAY_SIZE(spi01_board_info));
 #endif
diff --git a/arch/avr32/boards/atngw100/setup.c b/arch/avr32/boards/atngw100/setup.c
index 659d119ce712..fafed4c38fd2 100644
--- a/arch/avr32/boards/atngw100/setup.c
+++ b/arch/avr32/boards/atngw100/setup.c
@@ -322,6 +322,6 @@ static int __init atngw100_arch_init(void)
 	/* set_irq_type() after the arch_initcall for EIC has run, and
 	 * before the I2C subsystem could try using this IRQ.
 	 */
-	return set_irq_type(AT32_EXTINT(3), IRQ_TYPE_EDGE_FALLING);
+	return irq_set_irq_type(AT32_EXTINT(3), IRQ_TYPE_EDGE_FALLING);
 }
 arch_initcall(atngw100_arch_init);
diff --git a/arch/avr32/kernel/irq.c b/arch/avr32/kernel/irq.c
index 9604f7758f9a..bc3aa18293df 100644
--- a/arch/avr32/kernel/irq.c
+++ b/arch/avr32/kernel/irq.c
@@ -26,40 +26,3 @@ void __weak nmi_disable(void)
 {
 
 }
-
-#ifdef CONFIG_PROC_FS
-int show_interrupts(struct seq_file *p, void *v)
-{
-	int i = *(loff_t *)v, cpu;
-	struct irqaction *action;
-	unsigned long flags;
-
-	if (i == 0) {
-		seq_puts(p, "           ");
-		for_each_online_cpu(cpu)
-			seq_printf(p, "CPU%d       ", cpu);
-		seq_putc(p, '\n');
-	}
-
-	if (i < NR_IRQS) {
-		raw_spin_lock_irqsave(&irq_desc[i].lock, flags);
-		action = irq_desc[i].action;
-		if (!action)
-			goto unlock;
-
-		seq_printf(p, "%3d: ", i);
-		for_each_online_cpu(cpu)
-			seq_printf(p, "%10u ", kstat_irqs_cpu(i, cpu));
-		seq_printf(p, " %8s", irq_desc[i].chip->name ? : "-");
-		seq_printf(p, "  %s", action->name);
-		for (action = action->next; action; action = action->next)
-			seq_printf(p, ", %s", action->name);
-
-		seq_putc(p, '\n');
-	unlock:
-		raw_spin_unlock_irqrestore(&irq_desc[i].lock, flags);
-	}
-
-	return 0;
-}
-#endif
diff --git a/arch/avr32/mach-at32ap/extint.c b/arch/avr32/mach-at32ap/extint.c
index e9d12058ffd3..47ba4b9b6db1 100644
--- a/arch/avr32/mach-at32ap/extint.c
+++ b/arch/avr32/mach-at32ap/extint.c
@@ -61,45 +61,42 @@ struct eic {
 static struct eic *nmi_eic;
 static bool nmi_enabled;
 
-static void eic_ack_irq(unsigned int irq)
+static void eic_ack_irq(struct irq_chip *d)
 {
-	struct eic *eic = get_irq_chip_data(irq);
-	eic_writel(eic, ICR, 1 << (irq - eic->first_irq));
+	struct eic *eic = irq_data_get_irq_chip_data(data);
+	eic_writel(eic, ICR, 1 << (d->irq - eic->first_irq));
 }
 
-static void eic_mask_irq(unsigned int irq)
+static void eic_mask_irq(struct irq_chip *d)
 {
-	struct eic *eic = get_irq_chip_data(irq);
-	eic_writel(eic, IDR, 1 << (irq - eic->first_irq));
+	struct eic *eic = irq_data_get_irq_chip_data(data);
+	eic_writel(eic, IDR, 1 << (d->irq - eic->first_irq));
 }
 
-static void eic_mask_ack_irq(unsigned int irq)
+static void eic_mask_ack_irq(struct irq_chip *d)
 {
-	struct eic *eic = get_irq_chip_data(irq);
-	eic_writel(eic, ICR, 1 << (irq - eic->first_irq));
-	eic_writel(eic, IDR, 1 << (irq - eic->first_irq));
+	struct eic *eic = irq_data_get_irq_chip_data(data);
+	eic_writel(eic, ICR, 1 << (d->irq - eic->first_irq));
+	eic_writel(eic, IDR, 1 << (d->irq - eic->first_irq));
 }
 
-static void eic_unmask_irq(unsigned int irq)
+static void eic_unmask_irq(struct irq_chip *d)
 {
-	struct eic *eic = get_irq_chip_data(irq);
-	eic_writel(eic, IER, 1 << (irq - eic->first_irq));
+	struct eic *eic = irq_data_get_irq_chip_data(data);
+	eic_writel(eic, IER, 1 << (d->irq - eic->first_irq));
 }
 
-static int eic_set_irq_type(unsigned int irq, unsigned int flow_type)
+static int eic_set_irq_type(struct irq_chip *d, unsigned int flow_type)
 {
-	struct eic *eic = get_irq_chip_data(irq);
-	struct irq_desc *desc;
+	struct eic *eic = irq_data_get_irq_chip_data(data);
+	unsigned int irq = d->irq;
 	unsigned int i = irq - eic->first_irq;
 	u32 mode, edge, level;
-	int ret = 0;
 
 	flow_type &= IRQ_TYPE_SENSE_MASK;
 	if (flow_type == IRQ_TYPE_NONE)
 		flow_type = IRQ_TYPE_LEVEL_LOW;
 
-	desc = &irq_desc[irq];
-
 	mode = eic_readl(eic, MODE);
 	edge = eic_readl(eic, EDGE);
 	level = eic_readl(eic, LEVEL);
@@ -122,39 +119,34 @@ static int eic_set_irq_type(unsigned int irq, unsigned int flow_type)
 		edge &= ~(1 << i);
 		break;
 	default:
-		ret = -EINVAL;
-		break;
+		return -EINVAL;
 	}
 
-	if (ret == 0) {
-		eic_writel(eic, MODE, mode);
-		eic_writel(eic, EDGE, edge);
-		eic_writel(eic, LEVEL, level);
-
-		if (flow_type & (IRQ_TYPE_LEVEL_LOW | IRQ_TYPE_LEVEL_HIGH)) {
-			flow_type |= IRQ_LEVEL;
-			__set_irq_handler_unlocked(irq, handle_level_irq);
-		} else
-			__set_irq_handler_unlocked(irq, handle_edge_irq);
-		desc->status &= ~(IRQ_TYPE_SENSE_MASK | IRQ_LEVEL);
-		desc->status |= flow_type;
-	}
+	eic_writel(eic, MODE, mode);
+	eic_writel(eic, EDGE, edge);
+	eic_writel(eic, LEVEL, level);
 
-	return ret;
+	irqd_set_trigger_type(d, flow_type);
+	if (flow_type & (IRQ_TYPE_LEVEL_LOW | IRQ_TYPE_LEVEL_HIGH))
+		__irq_set_handler_locked(irq, handle_level_irq);
+	else
+		__irq_set_handler_locked(irq, handle_edge_irq);
+
+	return IRQ_SET_MASK_OK_NOCOPY;
 }
 
 static struct irq_chip eic_chip = {
 	.name		= "eic",
-	.ack		= eic_ack_irq,
-	.mask		= eic_mask_irq,
-	.mask_ack	= eic_mask_ack_irq,
-	.unmask		= eic_unmask_irq,
-	.set_type	= eic_set_irq_type,
+	.irq_ack	= eic_ack_irq,
+	.irq_mask	= eic_mask_irq,
+	.irq_mask_ack	= eic_mask_ack_irq,
+	.irq_unmask	= eic_unmask_irq,
+	.irq_set_type	= eic_set_irq_type,
 };
 
 static void demux_eic_irq(unsigned int irq, struct irq_desc *desc)
 {
-	struct eic *eic = desc->handler_data;
+	struct eic *eic = irq_desc_get_handler_data(desc);
 	unsigned long status, pending;
 	unsigned int i;
 
@@ -234,13 +226,13 @@ static int __init eic_probe(struct platform_device *pdev)
 	eic->chip = &eic_chip;
 
 	for (i = 0; i < nr_of_irqs; i++) {
-		set_irq_chip_and_handler(eic->first_irq + i, &eic_chip,
+		irq_set_chip_and_handler(eic->first_irq + i, &eic_chip,
 					 handle_level_irq);
-		set_irq_chip_data(eic->first_irq + i, eic);
+		irq_set_chip_data(eic->first_irq + i, eic);
 	}
 
-	set_irq_chained_handler(int_irq, demux_eic_irq);
-	set_irq_data(int_irq, eic);
+	irq_set_chained_handler(int_irq, demux_eic_irq);
+	irq_set_handler_data(int_irq, eic);
 
 	if (pdev->id == 0) {
 		nmi_eic = eic;
diff --git a/arch/avr32/mach-at32ap/intc.c b/arch/avr32/mach-at32ap/intc.c
index 994c4545e2b7..21ce35f33aa5 100644
--- a/arch/avr32/mach-at32ap/intc.c
+++ b/arch/avr32/mach-at32ap/intc.c
@@ -34,12 +34,12 @@ extern struct platform_device at32_intc0_device;
  * TODO: We may be able to implement mask/unmask by setting IxM flags
  * in the status register.
  */
-static void intc_mask_irq(unsigned int irq)
+static void intc_mask_irq(struct irq_data *d)
 {
 
 }
 
-static void intc_unmask_irq(unsigned int irq)
+static void intc_unmask_irq(struct irq_data *d)
 {
 
 }
@@ -47,8 +47,8 @@ static void intc_unmask_irq(unsigned int irq)
 static struct intc intc0 = {
 	.chip = {
 		.name		= "intc",
-		.mask		= intc_mask_irq,
-		.unmask		= intc_unmask_irq,
+		.irq_mask	= intc_mask_irq,
+		.irq_unmask	= intc_unmask_irq,
 	},
 };
 
@@ -57,7 +57,6 @@ static struct intc intc0 = {
  */
 asmlinkage void do_IRQ(int level, struct pt_regs *regs)
 {
-	struct irq_desc *desc;
 	struct pt_regs *old_regs;
 	unsigned int irq;
 	unsigned long status_reg;
@@ -69,8 +68,7 @@ asmlinkage void do_IRQ(int level, struct pt_regs *regs)
 	irq_enter();
 
 	irq = intc_readl(&intc0, INTCAUSE0 - 4 * level);
-	desc = irq_desc + irq;
-	desc->handle_irq(irq, desc);
+	generic_handle_irq(irq);
 
 	/*
 	 * Clear all interrupt level masks so that we may handle
@@ -128,7 +126,7 @@ void __init init_IRQ(void)
 		intc_writel(&intc0, INTPR0 + 4 * i, offset);
 		readback = intc_readl(&intc0, INTPR0 + 4 * i);
 		if (readback == offset)
-			set_irq_chip_and_handler(i, &intc0.chip,
+			irq_set_chip_and_handler(i, &intc0.chip,
 						 handle_simple_irq);
 	}
 
diff --git a/arch/avr32/mach-at32ap/pio.c b/arch/avr32/mach-at32ap/pio.c
index 09a274c9d0b7..f308e1ddc629 100644
--- a/arch/avr32/mach-at32ap/pio.c
+++ b/arch/avr32/mach-at32ap/pio.c
@@ -249,23 +249,23 @@ static void gpio_set(struct gpio_chip *chip, unsigned offset, int value)
 
 /* GPIO IRQ support */
 
-static void gpio_irq_mask(unsigned irq)
+static void gpio_irq_mask(struct irq_data *d)
 {
-	unsigned		gpio = irq_to_gpio(irq);
+	unsigned		gpio = irq_to_gpio(d->irq);
 	struct pio_device	*pio = &pio_dev[gpio >> 5];
 
 	pio_writel(pio, IDR, 1 << (gpio & 0x1f));
 }
 
-static void gpio_irq_unmask(unsigned irq)
+static void gpio_irq_unmask(struct irq_data *d))
 {
-	unsigned		gpio = irq_to_gpio(irq);
+	unsigned		gpio = irq_to_gpio(d->irq);
 	struct pio_device	*pio = &pio_dev[gpio >> 5];
 
 	pio_writel(pio, IER, 1 << (gpio & 0x1f));
 }
 
-static int gpio_irq_type(unsigned irq, unsigned type)
+static int gpio_irq_type(struct irq_data *d, unsigned type)
 {
 	if (type != IRQ_TYPE_EDGE_BOTH && type != IRQ_TYPE_NONE)
 		return -EINVAL;
@@ -275,20 +275,19 @@ static int gpio_irq_type(unsigned irq, unsigned type)
 
 static struct irq_chip gpio_irqchip = {
 	.name		= "gpio",
-	.mask		= gpio_irq_mask,
-	.unmask		= gpio_irq_unmask,
-	.set_type	= gpio_irq_type,
+	.irq_mask	= gpio_irq_mask,
+	.irq_unmask	= gpio_irq_unmask,
+	.irq_set_type	= gpio_irq_type,
 };
 
 static void gpio_irq_handler(unsigned irq, struct irq_desc *desc)
 {
-	struct pio_device	*pio = get_irq_chip_data(irq);
+	struct pio_device	*pio = irq_desc_get_chip_data(desc);
 	unsigned		gpio_irq;
 
-	gpio_irq = (unsigned) get_irq_data(irq);
+	gpio_irq = (unsigned) irq_get_handler_data(irq);
 	for (;;) {
 		u32		isr;
-		struct irq_desc	*d;
 
 		/* ack pending GPIO interrupts */
 		isr = pio_readl(pio, ISR) & pio_readl(pio, IMR);
@@ -301,9 +300,7 @@ static void gpio_irq_handler(unsigned irq, struct irq_desc *desc)
 			isr &= ~(1 << i);
 
 			i += gpio_irq;
-			d = &irq_desc[i];
-
-			d->handle_irq(i, d);
+			generic_handle_irq(i);
 		} while (isr);
 	}
 }
@@ -313,16 +310,16 @@ gpio_irq_setup(struct pio_device *pio, int irq, int gpio_irq)
 {
 	unsigned	i;
 
-	set_irq_chip_data(irq, pio);
-	set_irq_data(irq, (void *) gpio_irq);
+	irq_set_chip_data(irq, pio);
+	irq_set_handler_data(irq, (void *)gpio_irq);
 
 	for (i = 0; i < 32; i++, gpio_irq++) {
-		set_irq_chip_data(gpio_irq, pio);
-		set_irq_chip_and_handler(gpio_irq, &gpio_irqchip,
-				handle_simple_irq);
+		irq_set_chip_data(gpio_irq, pio);
+		irq_set_chip_and_handler(gpio_irq, &gpio_irqchip,
+					 handle_simple_irq);
 	}
 
-	set_irq_chained_handler(irq, gpio_irq_handler);
+	irq_set_chained_handler(irq, gpio_irq_handler);
 }
 
 /*--------------------------------------------------------------------------*/
diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index 672c21632f2f..8addb1220b4f 100644
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -34,7 +34,6 @@ config BLACKFIN
 	select GENERIC_ATOMIC64
 	select GENERIC_IRQ_PROBE
 	select IRQ_PER_CPU if SMP
-	select GENERIC_HARDIRQS_NO_DEPRECATED
 
 config GENERIC_CSUM
 	def_bool y
diff --git a/arch/blackfin/Kconfig.debug b/arch/blackfin/Kconfig.debug
index acb83799a215..2641731f24cd 100644
--- a/arch/blackfin/Kconfig.debug
+++ b/arch/blackfin/Kconfig.debug
@@ -59,7 +59,7 @@ config EXACT_HWERR
           be reported multiple cycles after the error happens. This delay
 	  can cause the wrong application, or even the kernel to receive a
 	  signal to be killed. If you are getting HW errors in your system,
-	  try turning this on to ensure they are at least comming from the
+	  try turning this on to ensure they are at least coming from the
 	  proper thread.
 
 	  On production systems, it is safe (and a small optimization) to say N.
diff --git a/arch/blackfin/configs/BF527-AD7160-EVAL_defconfig b/arch/blackfin/configs/BF527-AD7160-EVAL_defconfig
index 362f59dd5228..ad0881ba30af 100644
--- a/arch/blackfin/configs/BF527-AD7160-EVAL_defconfig
+++ b/arch/blackfin/configs/BF527-AD7160-EVAL_defconfig
@@ -46,7 +46,6 @@ CONFIG_UNIX=y
 # CONFIG_WIRELESS is not set
 CONFIG_BLK_DEV_LOOP=y
 CONFIG_BLK_DEV_RAM=y
-# CONFIG_MISC_DEVICES is not set
 # CONFIG_INPUT_MOUSEDEV is not set
 CONFIG_INPUT_EVDEV=y
 # CONFIG_INPUT_KEYBOARD is not set
diff --git a/arch/blackfin/configs/BF538-EZKIT_defconfig b/arch/blackfin/configs/BF538-EZKIT_defconfig
index 6883803e6ca8..580bf4296a14 100644
--- a/arch/blackfin/configs/BF538-EZKIT_defconfig
+++ b/arch/blackfin/configs/BF538-EZKIT_defconfig
@@ -70,7 +70,6 @@ CONFIG_MTD_ROM=m
 CONFIG_MTD_PHYSMAP=m
 CONFIG_MTD_NAND=m
 CONFIG_BLK_DEV_RAM=y
-# CONFIG_MISC_DEVICES is not set
 CONFIG_NETDEVICES=y
 CONFIG_PHYLIB=y
 CONFIG_SMSC_PHY=y
diff --git a/arch/blackfin/configs/BF561-ACVILON_defconfig b/arch/blackfin/configs/BF561-ACVILON_defconfig
index b7c8451f26ac..77a27e31d6d1 100644
--- a/arch/blackfin/configs/BF561-ACVILON_defconfig
+++ b/arch/blackfin/configs/BF561-ACVILON_defconfig
@@ -63,7 +63,6 @@ CONFIG_BLK_DEV_LOOP=y
 CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_RAM_COUNT=2
 CONFIG_BLK_DEV_RAM_SIZE=16384
-# CONFIG_MISC_DEVICES is not set
 CONFIG_SCSI=y
 # CONFIG_SCSI_PROC_FS is not set
 CONFIG_BLK_DEV_SD=y
diff --git a/arch/blackfin/configs/BlackStamp_defconfig b/arch/blackfin/configs/BlackStamp_defconfig
index 97ebe09a7370..85014319672c 100644
--- a/arch/blackfin/configs/BlackStamp_defconfig
+++ b/arch/blackfin/configs/BlackStamp_defconfig
@@ -58,6 +58,7 @@ CONFIG_MTD_M25P80=y
 CONFIG_BLK_DEV_LOOP=y
 CONFIG_BLK_DEV_NBD=y
 CONFIG_BLK_DEV_RAM=y
+CONFIG_MISC_DEVICES=y
 CONFIG_EEPROM_AT25=y
 CONFIG_NETDEVICES=y
 CONFIG_NET_ETHERNET=y
diff --git a/arch/blackfin/configs/CM-BF527_defconfig b/arch/blackfin/configs/CM-BF527_defconfig
index c2457543e58c..dbf750cd2db8 100644
--- a/arch/blackfin/configs/CM-BF527_defconfig
+++ b/arch/blackfin/configs/CM-BF527_defconfig
@@ -64,7 +64,6 @@ CONFIG_MTD_ROM=m
 CONFIG_MTD_COMPLEX_MAPPINGS=y
 CONFIG_MTD_GPIO_ADDR=y
 CONFIG_BLK_DEV_RAM=y
-# CONFIG_MISC_DEVICES is not set
 CONFIG_SCSI=y
 CONFIG_BLK_DEV_SD=y
 # CONFIG_SCSI_LOWLEVEL is not set
diff --git a/arch/blackfin/configs/CM-BF533_defconfig b/arch/blackfin/configs/CM-BF533_defconfig
index baf1c1573e5e..07ffbdae34ee 100644
--- a/arch/blackfin/configs/CM-BF533_defconfig
+++ b/arch/blackfin/configs/CM-BF533_defconfig
@@ -44,7 +44,6 @@ CONFIG_MTD_CFI=y
 CONFIG_MTD_CFI_INTELEXT=y
 CONFIG_MTD_RAM=y
 CONFIG_MTD_PHYSMAP=y
-# CONFIG_MISC_DEVICES is not set
 CONFIG_NETDEVICES=y
 # CONFIG_NETDEV_1000 is not set
 # CONFIG_NETDEV_10000 is not set
diff --git a/arch/blackfin/configs/CM-BF548_defconfig b/arch/blackfin/configs/CM-BF548_defconfig
index df267588efec..31d954216c05 100644
--- a/arch/blackfin/configs/CM-BF548_defconfig
+++ b/arch/blackfin/configs/CM-BF548_defconfig
@@ -63,7 +63,6 @@ CONFIG_MTD_RAM=y
 CONFIG_MTD_COMPLEX_MAPPINGS=y
 CONFIG_MTD_PHYSMAP=y
 CONFIG_BLK_DEV_RAM=y
-# CONFIG_MISC_DEVICES is not set
 CONFIG_SCSI=m
 CONFIG_BLK_DEV_SD=m
 # CONFIG_SCSI_LOWLEVEL is not set
diff --git a/arch/blackfin/configs/DNP5370_defconfig b/arch/blackfin/configs/DNP5370_defconfig
index f50313657f3e..b192acfae386 100644
--- a/arch/blackfin/configs/DNP5370_defconfig
+++ b/arch/blackfin/configs/DNP5370_defconfig
@@ -55,7 +55,6 @@ CONFIG_MTD_NAND=y
 CONFIG_MTD_NAND_PLATFORM=y
 CONFIG_BLK_DEV_LOOP=y
 CONFIG_BLK_DEV_RAM=y
-# CONFIG_MISC_DEVICES is not set
 CONFIG_NETDEVICES=y
 CONFIG_DAVICOM_PHY=y
 CONFIG_NET_ETHERNET=y
diff --git a/arch/blackfin/configs/H8606_defconfig b/arch/blackfin/configs/H8606_defconfig
index 7450127b6455..06e9f497faed 100644
--- a/arch/blackfin/configs/H8606_defconfig
+++ b/arch/blackfin/configs/H8606_defconfig
@@ -45,6 +45,7 @@ CONFIG_MTD_COMPLEX_MAPPINGS=y
 CONFIG_MTD_M25P80=y
 # CONFIG_M25PXX_USE_FAST_READ is not set
 CONFIG_BLK_DEV_RAM=y
+CONFIG_MISC_DEVICES=y
 CONFIG_EEPROM_AT25=y
 CONFIG_NETDEVICES=y
 CONFIG_NET_ETHERNET=y
diff --git a/arch/blackfin/configs/SRV1_defconfig b/arch/blackfin/configs/SRV1_defconfig
index 853809510ee9..12e66cd7cdaa 100644
--- a/arch/blackfin/configs/SRV1_defconfig
+++ b/arch/blackfin/configs/SRV1_defconfig
@@ -48,6 +48,7 @@ CONFIG_MTD_COMPLEX_MAPPINGS=y
 CONFIG_MTD_UCLINUX=y
 CONFIG_MTD_NAND=m
 CONFIG_BLK_DEV_RAM=y
+CONFIG_MISC_DEVICES=y
 CONFIG_EEPROM_AT25=m
 CONFIG_NETDEVICES=y
 # CONFIG_NETDEV_1000 is not set
diff --git a/arch/blackfin/include/asm/bitops.h b/arch/blackfin/include/asm/bitops.h
index 49762c6bb0d5..8a0fed16058f 100644
--- a/arch/blackfin/include/asm/bitops.h
+++ b/arch/blackfin/include/asm/bitops.h
@@ -25,7 +25,6 @@
 #include <asm-generic/bitops/const_hweight.h>
 #include <asm-generic/bitops/lock.h>
 
-#include <asm-generic/bitops/le.h>
 #include <asm-generic/bitops/ext2-atomic.h>
 
 #ifndef CONFIG_SMP
@@ -113,6 +112,9 @@ static inline int test_and_change_bit(int nr, volatile unsigned long *addr)
 
 #endif /* CONFIG_SMP */
 
+/* Needs to be after test_bit and friends */
+#include <asm-generic/bitops/le.h>
+
 /*
  * hweightN: returns the hamming weight (i.e. the number
  * of bits set) of a N-bit word
diff --git a/arch/blackfin/include/asm/traps.h b/arch/blackfin/include/asm/traps.h
index 9fe0da612c09..70c4e511cae6 100644
--- a/arch/blackfin/include/asm/traps.h
+++ b/arch/blackfin/include/asm/traps.h
@@ -57,7 +57,7 @@
 #define HWC_x3(level) \
 	"External Memory Addressing Error\n"
 #define EXC_0x04(level) \
-	"Unimplmented exception occured\n" \
+	"Unimplmented exception occurred\n" \
 	level " - Maybe you forgot to install a custom exception handler?\n"
 #define HWC_x12(level) \
 	"Performance Monitor Overflow\n"
diff --git a/arch/blackfin/kernel/irqchip.c b/arch/blackfin/kernel/irqchip.c
index 8f079392aff0..1696d34f51c2 100644
--- a/arch/blackfin/kernel/irqchip.c
+++ b/arch/blackfin/kernel/irqchip.c
@@ -48,7 +48,7 @@ int show_interrupts(struct seq_file *p, void *v)
 		seq_printf(p, "%3d: ", i);
 		for_each_online_cpu(j)
 			seq_printf(p, "%10u ", kstat_irqs_cpu(i, j));
-		seq_printf(p, " %8s", get_irq_desc_chip(desc)->name);
+		seq_printf(p, " %8s", irq_desc_get_chip(desc)->name);
 		seq_printf(p, "  %s", action->name);
 		for (action = action->next; action; action = action->next)
 			seq_printf(p, "  %s", action->name);
diff --git a/arch/blackfin/kernel/kgdb.c b/arch/blackfin/kernel/kgdb.c
index b8cfe34989e4..9b80b152435e 100644
--- a/arch/blackfin/kernel/kgdb.c
+++ b/arch/blackfin/kernel/kgdb.c
@@ -181,7 +181,7 @@ static int bfin_set_hw_break(unsigned long addr, int len, enum kgdb_bptype type)
 		return -ENOSPC;
 	}
 
-	/* Becasue hardware data watchpoint impelemented in current
+	/* Because hardware data watchpoint impelemented in current
 	 * Blackfin can not trigger an exception event as the hardware
 	 * instrction watchpoint does, we ignaore all data watch point here.
 	 * They can be turned on easily after future blackfin design
diff --git a/arch/blackfin/kernel/module.c b/arch/blackfin/kernel/module.c
index a6dfa6b71e63..35e350cad9d9 100644
--- a/arch/blackfin/kernel/module.c
+++ b/arch/blackfin/kernel/module.c
@@ -4,7 +4,7 @@
  * Licensed under the GPL-2 or later
  */
 
-#define pr_fmt(fmt) "module %s: " fmt
+#define pr_fmt(fmt) "module %s: " fmt, mod->name
 
 #include <linux/moduleloader.h>
 #include <linux/elf.h>
@@ -57,8 +57,7 @@ module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
 			dest = l1_inst_sram_alloc(s->sh_size);
 			mod->arch.text_l1 = dest;
 			if (dest == NULL) {
-				pr_err("L1 inst memory allocation failed\n",
-					mod->name);
+				pr_err("L1 inst memory allocation failed\n");
 				return -1;
 			}
 			dma_memcpy(dest, (void *)s->sh_addr, s->sh_size);
@@ -70,8 +69,7 @@ module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
 			dest = l1_data_sram_alloc(s->sh_size);
 			mod->arch.data_a_l1 = dest;
 			if (dest == NULL) {
-				pr_err("L1 data memory allocation failed\n",
-					mod->name);
+				pr_err("L1 data memory allocation failed\n");
 				return -1;
 			}
 			memcpy(dest, (void *)s->sh_addr, s->sh_size);
@@ -83,8 +81,7 @@ module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
 			dest = l1_data_sram_zalloc(s->sh_size);
 			mod->arch.bss_a_l1 = dest;
 			if (dest == NULL) {
-				pr_err("L1 data memory allocation failed\n",
-					mod->name);
+				pr_err("L1 data memory allocation failed\n");
 				return -1;
 			}
 
@@ -93,8 +90,7 @@ module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
 			dest = l1_data_B_sram_alloc(s->sh_size);
 			mod->arch.data_b_l1 = dest;
 			if (dest == NULL) {
-				pr_err("L1 data memory allocation failed\n",
-					mod->name);
+				pr_err("L1 data memory allocation failed\n");
 				return -1;
 			}
 			memcpy(dest, (void *)s->sh_addr, s->sh_size);
@@ -104,8 +100,7 @@ module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
 			dest = l1_data_B_sram_alloc(s->sh_size);
 			mod->arch.bss_b_l1 = dest;
 			if (dest == NULL) {
-				pr_err("L1 data memory allocation failed\n",
-					mod->name);
+				pr_err("L1 data memory allocation failed\n");
 				return -1;
 			}
 			memset(dest, 0, s->sh_size);
@@ -117,8 +112,7 @@ module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
 			dest = l2_sram_alloc(s->sh_size);
 			mod->arch.text_l2 = dest;
 			if (dest == NULL) {
-				pr_err("L2 SRAM allocation failed\n",
-					mod->name);
+				pr_err("L2 SRAM allocation failed\n");
 				return -1;
 			}
 			memcpy(dest, (void *)s->sh_addr, s->sh_size);
@@ -130,8 +124,7 @@ module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
 			dest = l2_sram_alloc(s->sh_size);
 			mod->arch.data_l2 = dest;
 			if (dest == NULL) {
-				pr_err("L2 SRAM allocation failed\n",
-					mod->name);
+				pr_err("L2 SRAM allocation failed\n");
 				return -1;
 			}
 			memcpy(dest, (void *)s->sh_addr, s->sh_size);
@@ -143,8 +136,7 @@ module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
 			dest = l2_sram_zalloc(s->sh_size);
 			mod->arch.bss_l2 = dest;
 			if (dest == NULL) {
-				pr_err("L2 SRAM allocation failed\n",
-					mod->name);
+				pr_err("L2 SRAM allocation failed\n");
 				return -1;
 			}
 
@@ -160,9 +152,9 @@ module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
 
 int
 apply_relocate(Elf_Shdr * sechdrs, const char *strtab,
-	       unsigned int symindex, unsigned int relsec, struct module *me)
+	       unsigned int symindex, unsigned int relsec, struct module *mod)
 {
-	pr_err(".rel unsupported\n", me->name);
+	pr_err(".rel unsupported\n");
 	return -ENOEXEC;
 }
 
@@ -186,7 +178,7 @@ apply_relocate_add(Elf_Shdr *sechdrs, const char *strtab,
 	Elf32_Sym *sym;
 	unsigned long location, value, size;
 
-	pr_debug("applying relocate section %u to %u\n", mod->name,
+	pr_debug("applying relocate section %u to %u\n",
 		relsec, sechdrs[relsec].sh_info);
 
 	for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) {
@@ -203,14 +195,14 @@ apply_relocate_add(Elf_Shdr *sechdrs, const char *strtab,
 
 #ifdef CONFIG_SMP
 		if (location >= COREB_L1_DATA_A_START) {
-			pr_err("cannot relocate in L1: %u (SMP kernel)",
-				mod->name, ELF32_R_TYPE(rel[i].r_info));
+			pr_err("cannot relocate in L1: %u (SMP kernel)\n",
+				ELF32_R_TYPE(rel[i].r_info));
 			return -ENOEXEC;
 		}
 #endif
 
 		pr_debug("location is %lx, value is %lx type is %d\n",
-			mod->name, location, value, ELF32_R_TYPE(rel[i].r_info));
+			location, value, ELF32_R_TYPE(rel[i].r_info));
 
 		switch (ELF32_R_TYPE(rel[i].r_info)) {
 
@@ -230,11 +222,11 @@ apply_relocate_add(Elf_Shdr *sechdrs, const char *strtab,
 		case R_BFIN_PCREL12_JUMP_S:
 		case R_BFIN_PCREL10:
 			pr_err("unsupported relocation: %u (no -mlong-calls?)\n",
-				mod->name, ELF32_R_TYPE(rel[i].r_info));
+				ELF32_R_TYPE(rel[i].r_info));
 			return -ENOEXEC;
 
 		default:
-			pr_err("unknown relocation: %u\n", mod->name,
+			pr_err("unknown relocation: %u\n",
 				ELF32_R_TYPE(rel[i].r_info));
 			return -ENOEXEC;
 		}
@@ -251,8 +243,7 @@ apply_relocate_add(Elf_Shdr *sechdrs, const char *strtab,
 			isram_memcpy((void *)location, &value, size);
 			break;
 		default:
-			pr_err("invalid relocation for %#lx\n",
-				mod->name, location);
+			pr_err("invalid relocation for %#lx\n", location);
 			return -ENOEXEC;
 		}
 	}
diff --git a/arch/blackfin/kernel/trace.c b/arch/blackfin/kernel/trace.c
index 05b550891ce5..050db44fe919 100644
--- a/arch/blackfin/kernel/trace.c
+++ b/arch/blackfin/kernel/trace.c
@@ -912,10 +912,11 @@ void show_regs(struct pt_regs *fp)
 	/* if no interrupts are going off, don't print this out */
 	if (fp->ipend & ~0x3F) {
 		for (i = 0; i < (NR_IRQS - 1); i++) {
+			struct irq_desc *desc = irq_to_desc(i);
 			if (!in_atomic)
-				raw_spin_lock_irqsave(&irq_desc[i].lock, flags);
+				raw_spin_lock_irqsave(&desc->lock, flags);
 
-			action = irq_desc[i].action;
+			action = desc->action;
 			if (!action)
 				goto unlock;
 
@@ -928,7 +929,7 @@ void show_regs(struct pt_regs *fp)
 			pr_cont("\n");
 unlock:
 			if (!in_atomic)
-				raw_spin_unlock_irqrestore(&irq_desc[i].lock, flags);
+				raw_spin_unlock_irqrestore(&desc->lock, flags);
 		}
 	}
 
diff --git a/arch/blackfin/kernel/traps.c b/arch/blackfin/kernel/traps.c
index 59c1df75e4de..655f25d139a7 100644
--- a/arch/blackfin/kernel/traps.c
+++ b/arch/blackfin/kernel/traps.c
@@ -98,7 +98,7 @@ asmlinkage notrace void trap_c(struct pt_regs *fp)
 	/* send the appropriate signal to the user program */
 	switch (trapnr) {
 
-	/* This table works in conjuction with the one in ./mach-common/entry.S
+	/* This table works in conjunction with the one in ./mach-common/entry.S
 	 * Some exceptions are handled there (in assembly, in exception space)
 	 * Some are handled here, (in C, in interrupt space)
 	 * Some, like CPLB, are handled in both, where the normal path is
diff --git a/arch/blackfin/lib/ins.S b/arch/blackfin/lib/ins.S
index 3edbd8db6598..79caccea85ca 100644
--- a/arch/blackfin/lib/ins.S
+++ b/arch/blackfin/lib/ins.S
@@ -67,7 +67,7 @@
  *  - DMA version, which do not suffer from this issue. DMA versions have
  *      different name (prefixed by dma_ ), and are located in
  *      ../kernel/bfin_dma_5xx.c
- * Using the dma related functions are recommended for transfering large
+ * Using the dma related functions are recommended for transferring large
  * buffers in/out of FIFOs.
  */
 
diff --git a/arch/blackfin/lib/memmove.S b/arch/blackfin/lib/memmove.S
index 80c240acac60..4eca566237a4 100644
--- a/arch/blackfin/lib/memmove.S
+++ b/arch/blackfin/lib/memmove.S
@@ -60,7 +60,7 @@ ENTRY(_memmove)
 	[P0++] = R1;
 
 	CC = P2 == 0;             /* any remaining bytes? */
-	P3 = I0;                  /* Ammend P3 to updated ptr. */
+	P3 = I0;                  /* Amend P3 to updated ptr. */
 	IF !CC JUMP .Lbytes;
 	P3 = I1;
 	RTS;
diff --git a/arch/blackfin/mach-bf537/boards/stamp.c b/arch/blackfin/mach-bf537/boards/stamp.c
index 2c69785a7bbe..3fa335405b31 100644
--- a/arch/blackfin/mach-bf537/boards/stamp.c
+++ b/arch/blackfin/mach-bf537/boards/stamp.c
@@ -2530,7 +2530,7 @@ static struct resource bfin_pata_resources[] = {
 static struct pata_platform_info bfin_pata_platform_data = {
 	.ioport_shift = 0,
 };
-/* CompactFlash Storage Card Memory Mapped Adressing
+/* CompactFlash Storage Card Memory Mapped Addressing
  * /REG = A11 = 1
  */
 static struct resource bfin_pata_resources[] = {
diff --git a/arch/blackfin/mach-bf561/smp.c b/arch/blackfin/mach-bf561/smp.c
index 5d68bf613b0b..7b07740cf68c 100644
--- a/arch/blackfin/mach-bf561/smp.c
+++ b/arch/blackfin/mach-bf561/smp.c
@@ -154,13 +154,13 @@ void platform_clear_ipi(unsigned int cpu, int irq)
 void __cpuinit bfin_local_timer_setup(void)
 {
 #if defined(CONFIG_TICKSOURCE_CORETMR)
-	struct irq_chip *chip = get_irq_chip(IRQ_CORETMR);
-	struct irq_desc *desc = irq_to_desc(IRQ_CORETMR);
+	struct irq_data *data = irq_get_irq_data(IRQ_CORETMR);
+	struct irq_chip *chip = irq_data_get_irq_chip(data);
 
 	bfin_coretmr_init();
 	bfin_coretmr_clockevent_init();
 
-	chip->irq_unmask(&desc->irq_data);
+	chip->irq_unmask(data);
 #else
 	/* Power down the core timer, just to play safe. */
 	bfin_write_TCNTL(0);
diff --git a/arch/blackfin/mach-common/entry.S b/arch/blackfin/mach-common/entry.S
index 46ab45704c89..f96933f48a7f 100644
--- a/arch/blackfin/mach-common/entry.S
+++ b/arch/blackfin/mach-common/entry.S
@@ -268,7 +268,7 @@ ENTRY(_handle_bad_cplb)
 	/* To get here, we just tried and failed to change a CPLB
 	 * so, handle things in trap_c (C code), by lowering to
 	 * IRQ5, just like we normally do. Since this is not a
-	 * "normal" return path, we have a do alot of stuff to
+	 * "normal" return path, we have a do a lot of stuff to
 	 * the stack to get ready so, we can fall through - we
 	 * need to make a CPLB exception look like a normal exception
 	 */
@@ -817,7 +817,7 @@ _new_old_task:
 	rets = [sp++];
 
 	/*
-	 * When we come out of resume, r0 carries "old" task, becuase we are
+	 * When we come out of resume, r0 carries "old" task, because we are
 	 * in "new" task.
 	 */
 	rts;
diff --git a/arch/blackfin/mach-common/head.S b/arch/blackfin/mach-common/head.S
index 581e2b0a71ac..76de5724c1e3 100644
--- a/arch/blackfin/mach-common/head.S
+++ b/arch/blackfin/mach-common/head.S
@@ -174,7 +174,7 @@ ENTRY(__start)
 	sp.l = lo(KERNEL_CLOCK_STACK);
 	sp.h = hi(KERNEL_CLOCK_STACK);
 	call _init_clocks;
-	sp = usp;	/* usp hasnt been touched, so restore from there */
+	sp = usp;	/* usp hasn't been touched, so restore from there */
 #endif
 
 	/* This section keeps the processor in supervisor mode
diff --git a/arch/blackfin/mach-common/ints-priority.c b/arch/blackfin/mach-common/ints-priority.c
index 6cd52395a999..43d9fb195c1e 100644
--- a/arch/blackfin/mach-common/ints-priority.c
+++ b/arch/blackfin/mach-common/ints-priority.c
@@ -559,7 +559,7 @@ static inline void bfin_set_irq_handler(unsigned irq, irq_flow_handler_t handle)
 #ifdef CONFIG_IPIPE
 	handle = handle_level_irq;
 #endif
-	__set_irq_handler_unlocked(irq, handle);
+	__irq_set_handler_locked(irq, handle);
 }
 
 static DECLARE_BITMAP(gpio_enabled, MAX_BLACKFIN_GPIOS);
@@ -578,10 +578,9 @@ static void bfin_gpio_ack_irq(struct irq_data *d)
 static void bfin_gpio_mask_ack_irq(struct irq_data *d)
 {
 	unsigned int irq = d->irq;
-	struct irq_desc *desc = irq_to_desc(irq);
 	u32 gpionr = irq_to_gpio(irq);
 
-	if (desc->handle_irq == handle_edge_irq)
+	if (!irqd_is_level_type(d))
 		set_gpio_data(gpionr, 0);
 
 	set_gpio_maska(gpionr, 0);
@@ -837,12 +836,11 @@ void init_pint_lut(void)
 
 static void bfin_gpio_ack_irq(struct irq_data *d)
 {
-	struct irq_desc *desc = irq_to_desc(d->irq);
 	u32 pint_val = irq2pint_lut[d->irq - SYS_IRQS];
 	u32 pintbit = PINT_BIT(pint_val);
 	u32 bank = PINT_2_BANK(pint_val);
 
-	if ((desc->status & IRQ_TYPE_SENSE_MASK) == IRQ_TYPE_EDGE_BOTH) {
+	if (irqd_get_trigger_type(d) == IRQ_TYPE_EDGE_BOTH) {
 		if (pint[bank]->invert_set & pintbit)
 			pint[bank]->invert_clear = pintbit;
 		else
@@ -854,12 +852,11 @@ static void bfin_gpio_ack_irq(struct irq_data *d)
 
 static void bfin_gpio_mask_ack_irq(struct irq_data *d)
 {
-	struct irq_desc *desc = irq_to_desc(d->irq);
 	u32 pint_val = irq2pint_lut[d->irq - SYS_IRQS];
 	u32 pintbit = PINT_BIT(pint_val);
 	u32 bank = PINT_2_BANK(pint_val);
 
-	if ((desc->status & IRQ_TYPE_SENSE_MASK) == IRQ_TYPE_EDGE_BOTH) {
+	if (irqd_get_trigger_type(d) == IRQ_TYPE_EDGE_BOTH) {
 		if (pint[bank]->invert_set & pintbit)
 			pint[bank]->invert_clear = pintbit;
 		else
@@ -1166,9 +1163,9 @@ int __init init_arch_irq(void)
 
 	for (irq = 0; irq <= SYS_IRQS; irq++) {
 		if (irq <= IRQ_CORETMR)
-			set_irq_chip(irq, &bfin_core_irqchip);
+			irq_set_chip(irq, &bfin_core_irqchip);
 		else
-			set_irq_chip(irq, &bfin_internal_irqchip);
+			irq_set_chip(irq, &bfin_internal_irqchip);
 
 		switch (irq) {
 #if defined(CONFIG_BF53x)
@@ -1192,50 +1189,50 @@ int __init init_arch_irq(void)
 #elif defined(CONFIG_BF538) || defined(CONFIG_BF539)
 		case IRQ_PORTF_INTA:
 #endif
-			set_irq_chained_handler(irq,
-						bfin_demux_gpio_irq);
+			irq_set_chained_handler(irq, bfin_demux_gpio_irq);
 			break;
 #ifdef BF537_GENERIC_ERROR_INT_DEMUX
 		case IRQ_GENERIC_ERROR:
-			set_irq_chained_handler(irq, bfin_demux_error_irq);
+			irq_set_chained_handler(irq, bfin_demux_error_irq);
 			break;
 #endif
 #if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
 		case IRQ_MAC_ERROR:
-			set_irq_chained_handler(irq, bfin_demux_mac_status_irq);
+			irq_set_chained_handler(irq,
+						bfin_demux_mac_status_irq);
 			break;
 #endif
 #ifdef CONFIG_SMP
 		case IRQ_SUPPLE_0:
 		case IRQ_SUPPLE_1:
-			set_irq_handler(irq, handle_percpu_irq);
+			irq_set_handler(irq, handle_percpu_irq);
 			break;
 #endif
 
 #ifdef CONFIG_TICKSOURCE_CORETMR
 		case IRQ_CORETMR:
 # ifdef CONFIG_SMP
-			set_irq_handler(irq, handle_percpu_irq);
+			irq_set_handler(irq, handle_percpu_irq);
 			break;
 # else
-			set_irq_handler(irq, handle_simple_irq);
+			irq_set_handler(irq, handle_simple_irq);
 			break;
 # endif
 #endif
 
 #ifdef CONFIG_TICKSOURCE_GPTMR0
 		case IRQ_TIMER0:
-			set_irq_handler(irq, handle_simple_irq);
+			irq_set_handler(irq, handle_simple_irq);
 			break;
 #endif
 
 #ifdef CONFIG_IPIPE
 		default:
-			set_irq_handler(irq, handle_level_irq);
+			irq_set_handler(irq, handle_level_irq);
 			break;
 #else /* !CONFIG_IPIPE */
 		default:
-			set_irq_handler(irq, handle_simple_irq);
+			irq_set_handler(irq, handle_simple_irq);
 			break;
 #endif /* !CONFIG_IPIPE */
 		}
@@ -1243,22 +1240,22 @@ int __init init_arch_irq(void)
 
 #ifdef BF537_GENERIC_ERROR_INT_DEMUX
 	for (irq = IRQ_PPI_ERROR; irq <= IRQ_UART1_ERROR; irq++)
-		set_irq_chip_and_handler(irq, &bfin_generic_error_irqchip,
+		irq_set_chip_and_handler(irq, &bfin_generic_error_irqchip,
 					 handle_level_irq);
 #if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
-	set_irq_chained_handler(IRQ_MAC_ERROR, bfin_demux_mac_status_irq);
+	irq_set_chained_handler(IRQ_MAC_ERROR, bfin_demux_mac_status_irq);
 #endif
 #endif
 
 #if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
 	for (irq = IRQ_MAC_PHYINT; irq <= IRQ_MAC_STMDONE; irq++)
-		set_irq_chip_and_handler(irq, &bfin_mac_status_irqchip,
+		irq_set_chip_and_handler(irq, &bfin_mac_status_irqchip,
 					 handle_level_irq);
 #endif
 	/* if configured as edge, then will be changed to do_edge_IRQ */
 	for (irq = GPIO_IRQ_BASE;
 		irq < (GPIO_IRQ_BASE + MAX_BLACKFIN_GPIOS); irq++)
-		set_irq_chip_and_handler(irq, &bfin_gpio_irqchip,
+		irq_set_chip_and_handler(irq, &bfin_gpio_irqchip,
 					 handle_level_irq);
 
 	bfin_write_IMASK(0);
diff --git a/arch/cris/Kconfig b/arch/cris/Kconfig
index 4db5b46e1eff..a6d03069d0ff 100644
--- a/arch/cris/Kconfig
+++ b/arch/cris/Kconfig
@@ -55,7 +55,6 @@ config CRIS
 	default y
 	select HAVE_IDE
 	select HAVE_GENERIC_HARDIRQS
-	select GENERIC_HARDIRQS_NO_DEPRECATED
 	select GENERIC_IRQ_SHOW
 
 config HZ
@@ -276,7 +275,6 @@ config ETRAX_AXISFLASHMAP
 	select MTD_CHAR
 	select MTD_BLOCK
 	select MTD_PARTITIONS
-	select MTD_CONCAT
 	select MTD_COMPLEX_MAPPINGS
 	help
 	  This option enables MTD mapping of flash devices.  Needed to use
@@ -297,8 +295,7 @@ config ETRAX_RTC
 choice
 	prompt "RTC chip"
 	depends on ETRAX_RTC
-	default ETRAX_PCF8563 if ETRAX_ARCH_V32
-	default ETRAX_DS1302 if ETRAX_ARCH_V10
+	default ETRAX_DS1302
 
 config ETRAX_DS1302
 	depends on ETRAX_ARCH_V10
diff --git a/arch/cris/arch-v10/README.mm b/arch/cris/arch-v10/README.mm
index 517d1f027fe8..67731d75cb51 100644
--- a/arch/cris/arch-v10/README.mm
+++ b/arch/cris/arch-v10/README.mm
@@ -38,7 +38,7 @@ space. We also use it to keep the user-mode virtual mapping in the same
 map during kernel-mode, so that the kernel easily can access the corresponding
 user-mode process' data.
 
-As a comparision, the Linux/i386 2.0 puts the kernel and physical RAM at
+As a comparison, the Linux/i386 2.0 puts the kernel and physical RAM at
 address 0, overlapping with the user-mode virtual space, so that descriptor
 registers are needed for each memory access to specify which MMU space to
 map through. That changed in 2.2, putting the kernel/physical RAM at 
diff --git a/arch/cris/arch-v10/drivers/axisflashmap.c b/arch/cris/arch-v10/drivers/axisflashmap.c
index b2079703af7e..ed708e19d09e 100644
--- a/arch/cris/arch-v10/drivers/axisflashmap.c
+++ b/arch/cris/arch-v10/drivers/axisflashmap.c
@@ -234,7 +234,6 @@ static struct mtd_info *flash_probe(void)
 	}
 
 	if (mtd_cse0 && mtd_cse1) {
-#ifdef CONFIG_MTD_CONCAT
 		struct mtd_info *mtds[] = { mtd_cse0, mtd_cse1 };
 
 		/* Since the concatenation layer adds a small overhead we
@@ -246,11 +245,6 @@ static struct mtd_info *flash_probe(void)
 		 */
 		mtd_cse = mtd_concat_create(mtds, ARRAY_SIZE(mtds),
 					    "cse0+cse1");
-#else
-		printk(KERN_ERR "%s and %s: Cannot concatenate due to kernel "
-		       "(mis)configuration!\n", map_cse0.name, map_cse1.name);
-		mtd_cse = NULL;
-#endif
 		if (!mtd_cse) {
 			printk(KERN_ERR "%s and %s: Concatenation failed!\n",
 			       map_cse0.name, map_cse1.name);
diff --git a/arch/cris/arch-v10/drivers/pcf8563.c b/arch/cris/arch-v10/drivers/pcf8563.c
index ea69faba9b62..1391b731ad1c 100644
--- a/arch/cris/arch-v10/drivers/pcf8563.c
+++ b/arch/cris/arch-v10/drivers/pcf8563.c
@@ -345,7 +345,7 @@ static long pcf8563_unlocked_ioctl(struct file *filp, unsigned int cmd, unsigned
 	int ret;
 
 	mutex_lock(&pcf8563_mutex);
-	return pcf8563_ioctl(filp, cmd, arg);
+	ret = pcf8563_ioctl(filp, cmd, arg);
 	mutex_unlock(&pcf8563_mutex);
 
 	return ret;
diff --git a/arch/cris/arch-v10/drivers/sync_serial.c b/arch/cris/arch-v10/drivers/sync_serial.c
index 399dc1ec8e6f..850265373611 100644
--- a/arch/cris/arch-v10/drivers/sync_serial.c
+++ b/arch/cris/arch-v10/drivers/sync_serial.c
@@ -31,7 +31,7 @@
 #include <asm/sync_serial.h>
 #include <arch/io_interface_mux.h>
 
-/* The receiver is a bit tricky beacuse of the continuous stream of data.*/
+/* The receiver is a bit tricky because of the continuous stream of data.*/
 /*                                                                       */
 /* Three DMA descriptors are linked together. Each DMA descriptor is     */
 /* responsible for port->bufchunk of a common buffer.                    */
diff --git a/arch/cris/arch-v10/kernel/signal.c b/arch/cris/arch-v10/kernel/signal.c
index b6be705c2a3e..e78fe49a9849 100644
--- a/arch/cris/arch-v10/kernel/signal.c
+++ b/arch/cris/arch-v10/kernel/signal.c
@@ -537,7 +537,7 @@ void do_signal(int canrestart, struct pt_regs *regs)
 			RESTART_CRIS_SYS(regs);
 		}
 		if (regs->r10 == -ERESTART_RESTARTBLOCK) {
-			regs->r10 = __NR_restart_syscall;
+			regs->r9 = __NR_restart_syscall;
 			regs->irp -= 2;
 		}
 	}
diff --git a/arch/cris/arch-v32/drivers/Kconfig b/arch/cris/arch-v32/drivers/Kconfig
index a2dd740c5907..1633b120aa81 100644
--- a/arch/cris/arch-v32/drivers/Kconfig
+++ b/arch/cris/arch-v32/drivers/Kconfig
@@ -406,7 +406,6 @@ config ETRAX_AXISFLASHMAP
 	select MTD_CHAR
 	select MTD_BLOCK
 	select MTD_PARTITIONS
-	select MTD_CONCAT
 	select MTD_COMPLEX_MAPPINGS
 	help
 	  This option enables MTD mapping of flash devices.  Needed to use
diff --git a/arch/cris/arch-v32/drivers/Makefile b/arch/cris/arch-v32/drivers/Makefile
index e8c02437edaf..39aa3c117a86 100644
--- a/arch/cris/arch-v32/drivers/Makefile
+++ b/arch/cris/arch-v32/drivers/Makefile
@@ -7,7 +7,6 @@ obj-$(CONFIG_ETRAX_AXISFLASHMAP)        += axisflashmap.o
 obj-$(CONFIG_ETRAXFS)                   += mach-fs/
 obj-$(CONFIG_CRIS_MACH_ARTPEC3)         += mach-a3/
 obj-$(CONFIG_ETRAX_IOP_FW_LOAD)         += iop_fw_load.o
-obj-$(CONFIG_ETRAX_PCF8563)		+= pcf8563.o
 obj-$(CONFIG_ETRAX_I2C)			+= i2c.o
 obj-$(CONFIG_ETRAX_SYNCHRONOUS_SERIAL)	+= sync_serial.o
 obj-$(CONFIG_PCI)			+= pci/
diff --git a/arch/cris/arch-v32/drivers/axisflashmap.c b/arch/cris/arch-v32/drivers/axisflashmap.c
index 51e1e85df96d..7b155f8203b8 100644
--- a/arch/cris/arch-v32/drivers/axisflashmap.c
+++ b/arch/cris/arch-v32/drivers/axisflashmap.c
@@ -215,7 +215,7 @@ static struct mtd_partition main_partition = {
 };
 #endif
 
-/* Auxilliary partition if we find another flash */
+/* Auxiliary partition if we find another flash */
 static struct mtd_partition aux_partition = {
 	.name = "aux",
 	.size = 0,
@@ -275,7 +275,6 @@ static struct mtd_info *flash_probe(void)
 	}
 
 	if (count > 1) {
-#ifdef CONFIG_MTD_CONCAT
 		/* Since the concatenation layer adds a small overhead we
 		 * could try to figure out if the chips in cse0 and cse1 are
 		 * identical and reprobe the whole cse0+cse1 window. But since
@@ -284,11 +283,6 @@ static struct mtd_info *flash_probe(void)
 		 * complicating the probing procedure.
 		 */
 		mtd_total = mtd_concat_create(mtds, count, "cse0+cse1");
-#else
-		printk(KERN_ERR "%s and %s: Cannot concatenate due to kernel "
-		       "(mis)configuration!\n", map_cse0.name, map_cse1.name);
-		mtd_toal = NULL;
-#endif
 		if (!mtd_total) {
 			printk(KERN_ERR "%s and %s: Concatenation failed!\n",
 				map_cse0.name, map_cse1.name);
diff --git a/arch/cris/arch-v32/drivers/mach-a3/nandflash.c b/arch/cris/arch-v32/drivers/mach-a3/nandflash.c
index 25d6f2b3a721..f58f2c1c5295 100644
--- a/arch/cris/arch-v32/drivers/mach-a3/nandflash.c
+++ b/arch/cris/arch-v32/drivers/mach-a3/nandflash.c
@@ -165,7 +165,7 @@ struct mtd_info *__init crisv32_nand_flash_probe(void)
 	/* Enable the following for a flash based bad block table */
 	/* this->options = NAND_USE_FLASH_BBT; */
 
-	/* Scan to find existance of the device */
+	/* Scan to find existence of the device */
 	if (nand_scan(crisv32_mtd, 1)) {
 		err = -ENXIO;
 		goto out_mtd;
diff --git a/arch/cris/arch-v32/drivers/mach-fs/nandflash.c b/arch/cris/arch-v32/drivers/mach-fs/nandflash.c
index c5a0f54763cc..d5b0cc9f976b 100644
--- a/arch/cris/arch-v32/drivers/mach-fs/nandflash.c
+++ b/arch/cris/arch-v32/drivers/mach-fs/nandflash.c
@@ -156,7 +156,7 @@ struct mtd_info *__init crisv32_nand_flash_probe(void)
 	/* Enable the following for a flash based bad block table */
 	/* this->options = NAND_USE_FLASH_BBT; */
 
-	/* Scan to find existance of the device */
+	/* Scan to find existence of the device */
 	if (nand_scan(crisv32_mtd, 1)) {
 		err = -ENXIO;
 		goto out_ior;
diff --git a/arch/cris/arch-v32/drivers/pcf8563.c b/arch/cris/arch-v32/drivers/pcf8563.c
deleted file mode 100644
index b6e4fc0aad42..000000000000
--- a/arch/cris/arch-v32/drivers/pcf8563.c
+++ /dev/null
@@ -1,377 +0,0 @@
-/*
- * PCF8563 RTC
- *
- * From Phillips' datasheet:
- *
- * The PCF8563 is a CMOS real-time clock/calendar optimized for low power
- * consumption. A programmable clock output, interrupt output and voltage
- * low detector are also provided. All address and data are transferred
- * serially via two-line bidirectional I2C-bus. Maximum bus speed is
- * 400 kbits/s. The built-in word address register is incremented
- * automatically after each written or read byte.
- *
- * Copyright (c) 2002-2007, Axis Communications AB
- * All rights reserved.
- *
- * Author: Tobias Anderberg <tobiasa@axis.com>.
- *
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/sched.h>
-#include <linux/init.h>
-#include <linux/fs.h>
-#include <linux/ioctl.h>
-#include <linux/delay.h>
-#include <linux/bcd.h>
-#include <linux/mutex.h>
-
-#include <asm/uaccess.h>
-#include <asm/system.h>
-#include <asm/io.h>
-#include <asm/rtc.h>
-
-#include "i2c.h"
-
-#define PCF8563_MAJOR	121	/* Local major number. */
-#define DEVICE_NAME	"rtc"	/* Name which is registered in /proc/devices. */
-#define PCF8563_NAME	"PCF8563"
-#define DRIVER_VERSION	"$Revision: 1.17 $"
-
-/* Two simple wrapper macros, saves a few keystrokes. */
-#define rtc_read(x) i2c_readreg(RTC_I2C_READ, x)
-#define rtc_write(x,y) i2c_writereg(RTC_I2C_WRITE, x, y)
-
-static DEFINE_MUTEX(pcf8563_mutex);
-static DEFINE_MUTEX(rtc_lock); /* Protect state etc */
-
-static const unsigned char days_in_month[] =
-	{ 0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
-
-static long pcf8563_unlocked_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
-
-/* Cache VL bit value read at driver init since writing the RTC_SECOND
- * register clears the VL status.
- */
-static int voltage_low;
-
-static const struct file_operations pcf8563_fops = {
-	.owner		= THIS_MODULE,
-	.unlocked_ioctl = pcf8563_unlocked_ioctl,
-	.llseek		= noop_llseek,
-};
-
-unsigned char
-pcf8563_readreg(int reg)
-{
-	unsigned char res = rtc_read(reg);
-
-	/* The PCF8563 does not return 0 for unimplemented bits. */
-	switch (reg) {
-		case RTC_SECONDS:
-		case RTC_MINUTES:
-			res &= 0x7F;
-			break;
-		case RTC_HOURS:
-		case RTC_DAY_OF_MONTH:
-			res &= 0x3F;
-			break;
-		case RTC_WEEKDAY:
-			res &= 0x07;
-			break;
-		case RTC_MONTH:
-			res &= 0x1F;
-			break;
-		case RTC_CONTROL1:
-			res &= 0xA8;
-			break;
-		case RTC_CONTROL2:
-			res &= 0x1F;
-			break;
-		case RTC_CLOCKOUT_FREQ:
-		case RTC_TIMER_CONTROL:
-			res &= 0x83;
-			break;
-	}
-	return res;
-}
-
-void
-pcf8563_writereg(int reg, unsigned char val)
-{
-	rtc_write(reg, val);
-}
-
-void
-get_rtc_time(struct rtc_time *tm)
-{
-	tm->tm_sec  = rtc_read(RTC_SECONDS);
-	tm->tm_min  = rtc_read(RTC_MINUTES);
-	tm->tm_hour = rtc_read(RTC_HOURS);
-	tm->tm_mday = rtc_read(RTC_DAY_OF_MONTH);
-	tm->tm_wday = rtc_read(RTC_WEEKDAY);
-	tm->tm_mon  = rtc_read(RTC_MONTH);
-	tm->tm_year = rtc_read(RTC_YEAR);
-
-	if (tm->tm_sec & 0x80) {
-		printk(KERN_ERR "%s: RTC Voltage Low - reliable date/time "
-		       "information is no longer guaranteed!\n", PCF8563_NAME);
-	}
-
-	tm->tm_year  = bcd2bin(tm->tm_year) +
-		       ((tm->tm_mon & 0x80) ? 100 : 0);
-	tm->tm_sec  &= 0x7F;
-	tm->tm_min  &= 0x7F;
-	tm->tm_hour &= 0x3F;
-	tm->tm_mday &= 0x3F;
-	tm->tm_wday &= 0x07; /* Not coded in BCD. */
-	tm->tm_mon  &= 0x1F;
-
-	tm->tm_sec = bcd2bin(tm->tm_sec);
-	tm->tm_min = bcd2bin(tm->tm_min);
-	tm->tm_hour = bcd2bin(tm->tm_hour);
-	tm->tm_mday = bcd2bin(tm->tm_mday);
-	tm->tm_mon = bcd2bin(tm->tm_mon);
-	tm->tm_mon--; /* Month is 1..12 in RTC but 0..11 in linux */
-}
-
-int __init
-pcf8563_init(void)
-{
-	static int res;
-	static int first = 1;
-
-	if (!first)
-		return res;
-	first = 0;
-
-	/* Initiate the i2c protocol. */
-	res = i2c_init();
-	if (res < 0) {
-		printk(KERN_CRIT "pcf8563_init: Failed to init i2c.\n");
-		return res;
-	}
-
-	/*
-	 * First of all we need to reset the chip. This is done by
-	 * clearing control1, control2 and clk freq and resetting
-	 * all alarms.
-	 */
-	if (rtc_write(RTC_CONTROL1, 0x00) < 0)
-		goto err;
-
-	if (rtc_write(RTC_CONTROL2, 0x00) < 0)
-		goto err;
-
-	if (rtc_write(RTC_CLOCKOUT_FREQ, 0x00) < 0)
-		goto err;
-
-	if (rtc_write(RTC_TIMER_CONTROL, 0x03) < 0)
-		goto err;
-
-	/* Reset the alarms. */
-	if (rtc_write(RTC_MINUTE_ALARM, 0x80) < 0)
-		goto err;
-
-	if (rtc_write(RTC_HOUR_ALARM, 0x80) < 0)
-		goto err;
-
-	if (rtc_write(RTC_DAY_ALARM, 0x80) < 0)
-		goto err;
-
-	if (rtc_write(RTC_WEEKDAY_ALARM, 0x80) < 0)
-		goto err;
-
-	/* Check for low voltage, and warn about it. */
-	if (rtc_read(RTC_SECONDS) & 0x80) {
-		voltage_low = 1;
-		printk(KERN_WARNING "%s: RTC Voltage Low - reliable "
-		       "date/time information is no longer guaranteed!\n",
-		       PCF8563_NAME);
-	}
-
-	return res;
-
-err:
-	printk(KERN_INFO "%s: Error initializing chip.\n", PCF8563_NAME);
-	res = -1;
-	return res;
-}
-
-void __exit
-pcf8563_exit(void)
-{
-	unregister_chrdev(PCF8563_MAJOR, DEVICE_NAME);
-}
-
-/*
- * ioctl calls for this driver. Why return -ENOTTY upon error? Because
- * POSIX says so!
- */
-static int pcf8563_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
-{
-	/* Some sanity checks. */
-	if (_IOC_TYPE(cmd) != RTC_MAGIC)
-		return -ENOTTY;
-
-	if (_IOC_NR(cmd) > RTC_MAX_IOCTL)
-		return -ENOTTY;
-
-	switch (cmd) {
-	case RTC_RD_TIME:
-	{
-		struct rtc_time tm;
-
-		mutex_lock(&rtc_lock);
-		memset(&tm, 0, sizeof tm);
-		get_rtc_time(&tm);
-
-		if (copy_to_user((struct rtc_time *) arg, &tm,
-				 sizeof tm)) {
-			mutex_unlock(&rtc_lock);
-			return -EFAULT;
-		}
-
-		mutex_unlock(&rtc_lock);
-
-		return 0;
-	}
-	case RTC_SET_TIME:
-	{
-		int leap;
-		int year;
-		int century;
-		struct rtc_time tm;
-
-		memset(&tm, 0, sizeof tm);
-		if (!capable(CAP_SYS_TIME))
-			return -EPERM;
-
-		if (copy_from_user(&tm, (struct rtc_time *) arg,
-				   sizeof tm))
-			return -EFAULT;
-
-		/* Convert from struct tm to struct rtc_time. */
-		tm.tm_year += 1900;
-		tm.tm_mon += 1;
-
-		/*
-		 * Check if tm.tm_year is a leap year. A year is a leap
-		 * year if it is divisible by 4 but not 100, except
-		 * that years divisible by 400 _are_ leap years.
-		 */
-		year = tm.tm_year;
-		leap = (tm.tm_mon == 2) &&
-			((year % 4 == 0 && year % 100 != 0) || year % 400 == 0);
-
-		/* Perform some sanity checks. */
-		if ((tm.tm_year < 1970) ||
-		    (tm.tm_mon > 12) ||
-		    (tm.tm_mday == 0) ||
-		    (tm.tm_mday > days_in_month[tm.tm_mon] + leap) ||
-		    (tm.tm_wday >= 7) ||
-		    (tm.tm_hour >= 24) ||
-		    (tm.tm_min >= 60) ||
-		    (tm.tm_sec >= 60))
-			return -EINVAL;
-
-		century = (tm.tm_year >= 2000) ? 0x80 : 0;
-		tm.tm_year = tm.tm_year % 100;
-
-		tm.tm_year = bin2bcd(tm.tm_year);
-		tm.tm_mon = bin2bcd(tm.tm_mon);
-		tm.tm_mday = bin2bcd(tm.tm_mday);
-		tm.tm_hour = bin2bcd(tm.tm_hour);
-		tm.tm_min = bin2bcd(tm.tm_min);
-		tm.tm_sec = bin2bcd(tm.tm_sec);
-		tm.tm_mon |= century;
-
-		mutex_lock(&rtc_lock);
-
-		rtc_write(RTC_YEAR, tm.tm_year);
-		rtc_write(RTC_MONTH, tm.tm_mon);
-		rtc_write(RTC_WEEKDAY, tm.tm_wday); /* Not coded in BCD. */
-		rtc_write(RTC_DAY_OF_MONTH, tm.tm_mday);
-		rtc_write(RTC_HOURS, tm.tm_hour);
-		rtc_write(RTC_MINUTES, tm.tm_min);
-		rtc_write(RTC_SECONDS, tm.tm_sec);
-
-		mutex_unlock(&rtc_lock);
-
-		return 0;
-	}
-	case RTC_VL_READ:
-		if (voltage_low)
-			printk(KERN_ERR "%s: RTC Voltage Low - "
-			       "reliable date/time information is no "
-			       "longer guaranteed!\n", PCF8563_NAME);
-
-		if (copy_to_user((int *) arg, &voltage_low, sizeof(int)))
-			return -EFAULT;
-		return 0;
-
-	case RTC_VL_CLR:
-	{
-		/* Clear the VL bit in the seconds register in case
-		 * the time has not been set already (which would
-		 * have cleared it). This does not really matter
-		 * because of the cached voltage_low value but do it
-		 * anyway for consistency. */
-
-		int ret = rtc_read(RTC_SECONDS);
-
-		rtc_write(RTC_SECONDS, (ret & 0x7F));
-
-		/* Clear the cached value. */
-		voltage_low = 0;
-
-		return 0;
-	}
-	default:
-		return -ENOTTY;
-	}
-
-	return 0;
-}
-
-static long pcf8563_unlocked_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
-{
-	int ret;
-
-	mutex_lock(&pcf8563_mutex);
-	return pcf8563_ioctl(filp, cmd, arg);
-	mutex_unlock(&pcf8563_mutex);
-
-	return ret;
-}
-
-static int __init pcf8563_register(void)
-{
-	if (pcf8563_init() < 0) {
-		printk(KERN_INFO "%s: Unable to initialize Real-Time Clock "
-		       "Driver, %s\n", PCF8563_NAME, DRIVER_VERSION);
-		return -1;
-	}
-
-	if (register_chrdev(PCF8563_MAJOR, DEVICE_NAME, &pcf8563_fops) < 0) {
-		printk(KERN_INFO "%s: Unable to get major numer %d for RTC "
-		       "device.\n", PCF8563_NAME, PCF8563_MAJOR);
-		return -1;
-	}
-
-	printk(KERN_INFO "%s Real-Time Clock Driver, %s\n", PCF8563_NAME,
-	       DRIVER_VERSION);
-
-	/* Check for low voltage, and warn about it. */
-	if (voltage_low) {
-		printk(KERN_WARNING "%s: RTC Voltage Low - reliable date/time "
-		       "information is no longer guaranteed!\n", PCF8563_NAME);
-	}
-
-	return 0;
-}
-
-module_init(pcf8563_register);
-module_exit(pcf8563_exit);
diff --git a/arch/cris/arch-v32/drivers/sync_serial.c b/arch/cris/arch-v32/drivers/sync_serial.c
index c8637a9195ea..a6a180bc566f 100644
--- a/arch/cris/arch-v32/drivers/sync_serial.c
+++ b/arch/cris/arch-v32/drivers/sync_serial.c
@@ -33,7 +33,7 @@
 #include <asm/sync_serial.h>
 
 
-/* The receiver is a bit tricky beacuse of the continuous stream of data.*/
+/* The receiver is a bit tricky because of the continuous stream of data.*/
 /*                                                                       */
 /* Three DMA descriptors are linked together. Each DMA descriptor is     */
 /* responsible for port->bufchunk of a common buffer.                    */
diff --git a/arch/cris/arch-v32/kernel/entry.S b/arch/cris/arch-v32/kernel/entry.S
index 0ecb50b8f0d9..3abf12c23e5f 100644
--- a/arch/cris/arch-v32/kernel/entry.S
+++ b/arch/cris/arch-v32/kernel/entry.S
@@ -182,7 +182,7 @@ _syscall_traced:
 	move.d	$r0, [$sp]
 
 	;; The registers carrying parameters (R10-R13) are intact. The optional
-	;; fifth and sixth parameters is in MOF and SRP respectivly. Put them
+	;; fifth and sixth parameters is in MOF and SRP respectively. Put them
 	;; back on the stack.
 	subq	4, $sp
 	move	$srp, [$sp]
diff --git a/arch/cris/arch-v32/kernel/irq.c b/arch/cris/arch-v32/kernel/irq.c
index 8023176e19b2..68a1a5901ca5 100644
--- a/arch/cris/arch-v32/kernel/irq.c
+++ b/arch/cris/arch-v32/kernel/irq.c
@@ -374,7 +374,7 @@ crisv32_do_multiple(struct pt_regs* regs)
 	irq_enter();
 
 	for (i = 0; i < NBR_REGS; i++) {
-		/* Get which IRQs that happend. */
+		/* Get which IRQs that happened. */
 		masked[i] = REG_RD_INT_VECT(intr_vect, irq_regs[cpu],
 			r_masked_vect, i);
 
diff --git a/arch/cris/arch-v32/kernel/kgdb.c b/arch/cris/arch-v32/kernel/kgdb.c
index 6b653323d796..c0343c3ea7f8 100644
--- a/arch/cris/arch-v32/kernel/kgdb.c
+++ b/arch/cris/arch-v32/kernel/kgdb.c
@@ -925,7 +925,7 @@ stub_is_stopped(int sigval)
 
 					if (reg.eda >= bp_d_regs[bp * 2] &&
 					    reg.eda <= bp_d_regs[bp * 2 + 1]) {
-						/* EDA withing range for this BP; it must be the one
+						/* EDA within range for this BP; it must be the one
 						   we're looking for. */
 						stopped_data_address = reg.eda;
 						break;
diff --git a/arch/cris/arch-v32/kernel/process.c b/arch/cris/arch-v32/kernel/process.c
index 562f84718906..0570e8ce603d 100644
--- a/arch/cris/arch-v32/kernel/process.c
+++ b/arch/cris/arch-v32/kernel/process.c
@@ -149,7 +149,7 @@ copy_thread(unsigned long clone_flags, unsigned long usp,
         childregs->r10 = 0;	/* Child returns 0 after a fork/clone. */
 
 	/* Set a new TLS ?
-	 * The TLS is in $mof beacuse it is the 5th argument to sys_clone.
+	 * The TLS is in $mof because it is the 5th argument to sys_clone.
 	 */
 	if (p->mm && (clone_flags & CLONE_SETTLS)) {
 		task_thread_info(p)->tls = regs->mof;
diff --git a/arch/cris/arch-v32/kernel/signal.c b/arch/cris/arch-v32/kernel/signal.c
index b3a05ae56214..ce4ab1a5552c 100644
--- a/arch/cris/arch-v32/kernel/signal.c
+++ b/arch/cris/arch-v32/kernel/signal.c
@@ -610,7 +610,7 @@ ugdb_trap_user(struct thread_info *ti, int sig)
 		user_regs(ti)->spc = 0;
 	}
 	/* FIXME: Filter out false h/w breakpoint hits (i.e. EDA
-	   not withing any configured h/w breakpoint range). Synchronize with
+	   not within any configured h/w breakpoint range). Synchronize with
 	   what already exists for kernel debugging.  */
 	if (((user_regs(ti)->exs & 0xff00) >> 8) == BREAK_8_INTR_VECT) {
 		/* Break 8: subtract 2 from ERP unless in a delay slot. */
diff --git a/arch/cris/arch-v32/mach-a3/arbiter.c b/arch/cris/arch-v32/mach-a3/arbiter.c
index 8b924db71c9a..15f5c9de2639 100644
--- a/arch/cris/arch-v32/mach-a3/arbiter.c
+++ b/arch/cris/arch-v32/mach-a3/arbiter.c
@@ -568,7 +568,7 @@ crisv32_foo_arbiter_irq(int irq, void *dev_id)
 	REG_WR(marb_foo_bp, watch->instance, rw_ack, ack);
 	REG_WR(marb_foo, regi_marb_foo, rw_ack_intr, ack_intr);
 
-	printk(KERN_DEBUG "IRQ occured at %X\n", (unsigned)get_irq_regs());
+	printk(KERN_DEBUG "IRQ occurred at %X\n", (unsigned)get_irq_regs());
 
 	if (watch->cb)
 		watch->cb();
@@ -624,7 +624,7 @@ crisv32_bar_arbiter_irq(int irq, void *dev_id)
 	REG_WR(marb_bar_bp, watch->instance, rw_ack, ack);
 	REG_WR(marb_bar, regi_marb_bar, rw_ack_intr, ack_intr);
 
-	printk(KERN_DEBUG "IRQ occured at %X\n", (unsigned)get_irq_regs()->erp);
+	printk(KERN_DEBUG "IRQ occurred at %X\n", (unsigned)get_irq_regs()->erp);
 
 	if (watch->cb)
 		watch->cb();
diff --git a/arch/cris/arch-v32/mach-fs/arbiter.c b/arch/cris/arch-v32/mach-fs/arbiter.c
index 82ef293c4c81..3f8ebb5c1477 100644
--- a/arch/cris/arch-v32/mach-fs/arbiter.c
+++ b/arch/cris/arch-v32/mach-fs/arbiter.c
@@ -395,7 +395,7 @@ static irqreturn_t crisv32_arbiter_irq(int irq, void *dev_id)
 	REG_WR(marb_bp, watch->instance, rw_ack, ack);
 	REG_WR(marb, regi_marb, rw_ack_intr, ack_intr);
 
-	printk(KERN_INFO "IRQ occured at %lX\n", get_irq_regs()->erp);
+	printk(KERN_INFO "IRQ occurred at %lX\n", get_irq_regs()->erp);
 
 	if (watch->cb)
 		watch->cb();
diff --git a/arch/cris/boot/rescue/head_v10.S b/arch/cris/boot/rescue/head_v10.S
index 2fafe247a25b..af55df0994b3 100644
--- a/arch/cris/boot/rescue/head_v10.S
+++ b/arch/cris/boot/rescue/head_v10.S
@@ -7,7 +7,7 @@
  * for each partition that this code should check.
  *
  * If any of the checksums fail, we assume the flash is so
- * corrupt that we cant use it to boot into the ftp flash
+ * corrupt that we can't use it to boot into the ftp flash
  * loader, and instead we initialize the serial port to
  * receive a flash-loader and new flash image. we dont include
  * any flash code here, but just accept a certain amount of
diff --git a/arch/cris/include/arch-v32/arch/hwregs/Makefile b/arch/cris/include/arch-v32/arch/hwregs/Makefile
index f9a05d2aa061..b8b3f8d666e4 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/Makefile
+++ b/arch/cris/include/arch-v32/arch/hwregs/Makefile
@@ -1,6 +1,6 @@
 # Makefile to generate or copy the latest register definitions
 # and related datastructures and helpermacros.
-# The offical place for these files is at:
+# The official place for these files is at:
 RELEASE ?= r1_alfa5
 OFFICIAL_INCDIR = /n/asic/projects/guinness/releases/$(RELEASE)/design/top/sw/include/
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/iop/Makefile b/arch/cris/include/arch-v32/arch/hwregs/iop/Makefile
index a90056a095e3..0747a22e3c07 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/iop/Makefile
+++ b/arch/cris/include/arch-v32/arch/hwregs/iop/Makefile
@@ -1,7 +1,7 @@
 # $Id: Makefile,v 1.3 2004/01/07 20:34:55 johana Exp $
 # Makefile to generate or copy the latest register definitions
 # and related datastructures and helpermacros.
-# The offical place for these files is probably at:
+# The official place for these files is probably at:
 RELEASE ?= r1_alfa5
 IOPOFFICIAL_INCDIR = /n/asic/projects/guinness/releases/$(RELEASE)/design/top/sw/include/
 
diff --git a/arch/cris/include/asm/pgtable.h b/arch/cris/include/asm/pgtable.h
index 9eaae217b21b..7df430138355 100644
--- a/arch/cris/include/asm/pgtable.h
+++ b/arch/cris/include/asm/pgtable.h
@@ -97,7 +97,7 @@ extern unsigned long empty_zero_page;
 #define pte_clear(mm,addr,xp)	do { pte_val(*(xp)) = 0; } while (0)
 
 #define pmd_none(x)     (!pmd_val(x))
-/* by removing the _PAGE_KERNEL bit from the comparision, the same pmd_bad
+/* by removing the _PAGE_KERNEL bit from the comparison, the same pmd_bad
  * works for both _PAGE_TABLE and _KERNPG_TABLE pmd entries.
  */
 #define	pmd_bad(x)	((pmd_val(x) & (~PAGE_MASK & ~_PAGE_KERNEL)) != _PAGE_TABLE)
diff --git a/arch/cris/kernel/traps.c b/arch/cris/kernel/traps.c
index 541efbf09371..8da53f34c7a7 100644
--- a/arch/cris/kernel/traps.c
+++ b/arch/cris/kernel/traps.c
@@ -183,7 +183,7 @@ __initcall(oops_nmi_register);
 
 /*
  * This gets called from entry.S when the watchdog has bitten. Show something
- * similiar to an Oops dump, and if the kernel is configured to be a nice
+ * similar to an Oops dump, and if the kernel is configured to be a nice
  * doggy, then halt instead of reboot.
  */
 void
diff --git a/arch/frv/Kconfig b/arch/frv/Kconfig
index f6037b2da25e..064f62196745 100644
--- a/arch/frv/Kconfig
+++ b/arch/frv/Kconfig
@@ -6,6 +6,7 @@ config FRV
 	select HAVE_IRQ_WORK
 	select HAVE_PERF_EVENTS
 	select HAVE_GENERIC_HARDIRQS
+	select GENERIC_IRQ_SHOW
 
 config ZONE_DMA
 	bool
@@ -361,7 +362,6 @@ menu "Power management options"
 
 config ARCH_SUSPEND_POSSIBLE
 	def_bool y
-	depends on !SMP
 
 source kernel/power/Kconfig
 endmenu
diff --git a/arch/frv/include/asm/pci.h b/arch/frv/include/asm/pci.h
index 0d5997909850..ef03baf5d89d 100644
--- a/arch/frv/include/asm/pci.h
+++ b/arch/frv/include/asm/pci.h
@@ -54,7 +54,7 @@ static inline void pci_dma_burst_advice(struct pci_dev *pdev,
 #endif
 
 /*
- *	These are pretty much arbitary with the CoMEM implementation.
+ *	These are pretty much arbitrary with the CoMEM implementation.
  *	We have the whole address space to ourselves.
  */
 #define PCIBIOS_MIN_IO		0x100
diff --git a/arch/frv/include/asm/spr-regs.h b/arch/frv/include/asm/spr-regs.h
index 01e6af5e99b8..d3883021f236 100644
--- a/arch/frv/include/asm/spr-regs.h
+++ b/arch/frv/include/asm/spr-regs.h
@@ -274,7 +274,7 @@
 #define MSR0_RD			0xc0000000	/* rounding mode */
 #define MSR0_RD_NEAREST		0x00000000	/* - nearest */
 #define MSR0_RD_ZERO		0x40000000	/* - zero */
-#define MSR0_RD_POS_INF		0x80000000	/* - postive infinity */
+#define MSR0_RD_POS_INF		0x80000000	/* - positive infinity */
 #define MSR0_RD_NEG_INF		0xc0000000	/* - negative infinity */
 
 /*
diff --git a/arch/frv/include/asm/system.h b/arch/frv/include/asm/system.h
index 0a6d8d9ca45b..6c10fd2c626d 100644
--- a/arch/frv/include/asm/system.h
+++ b/arch/frv/include/asm/system.h
@@ -45,21 +45,12 @@ do {									\
 #define wmb()			asm volatile ("membar" : : :"memory")
 #define read_barrier_depends()	do { } while (0)
 
-#ifdef CONFIG_SMP
-#define smp_mb()			mb()
-#define smp_rmb()			rmb()
-#define smp_wmb()			wmb()
-#define smp_read_barrier_depends()	read_barrier_depends()
-#define set_mb(var, value) \
-	do { xchg(&var, (value)); } while (0)
-#else
 #define smp_mb()			barrier()
 #define smp_rmb()			barrier()
 #define smp_wmb()			barrier()
 #define smp_read_barrier_depends()	do {} while(0)
 #define set_mb(var, value) \
 	do { var = (value); barrier(); } while (0)
-#endif
 
 extern void die_if_kernel(const char *, ...) __attribute__((format(printf, 1, 2)));
 extern void free_initmem(void);
diff --git a/arch/frv/include/asm/thread_info.h b/arch/frv/include/asm/thread_info.h
index 8582e9c7531c..cefbe73dc119 100644
--- a/arch/frv/include/asm/thread_info.h
+++ b/arch/frv/include/asm/thread_info.h
@@ -21,6 +21,8 @@
 
 #define THREAD_SIZE		8192
 
+#define __HAVE_ARCH_TASK_STRUCT_ALLOCATOR
+
 /*
  * low level task data that entry.S needs immediate access to
  * - this struct should fit entirely inside of one cache line
@@ -87,7 +89,7 @@ register struct thread_info *__current_thread_info asm("gr15");
 #define alloc_thread_info_node(tsk, node)			\
 		kzalloc_node(THREAD_SIZE, GFP_KERNEL, node)
 #else
-#define alloc_thread_info_node(tsk)				\
+#define alloc_thread_info_node(tsk, node)			\
 		kmalloc_node(THREAD_SIZE, GFP_KERNEL, node)
 #endif
 
diff --git a/arch/frv/include/asm/virtconvert.h b/arch/frv/include/asm/virtconvert.h
index 59788fa2a813..b26d70ab9111 100644
--- a/arch/frv/include/asm/virtconvert.h
+++ b/arch/frv/include/asm/virtconvert.h
@@ -1,4 +1,4 @@
-/* virtconvert.h: virtual/physical/page address convertion
+/* virtconvert.h: virtual/physical/page address conversion
  *
  * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved.
  * Written by David Howells (dhowells@redhat.com)
diff --git a/arch/frv/kernel/entry-table.S b/arch/frv/kernel/entry-table.S
index bf35f33e48c9..06c5ae191e59 100644
--- a/arch/frv/kernel/entry-table.S
+++ b/arch/frv/kernel/entry-table.S
@@ -86,7 +86,7 @@ __break_usertrap_fixup_table:
 	.globl		__break_kerneltrap_fixup_table
 __break_kerneltrap_fixup_table:
 
-	# handler declaration for a sofware or program interrupt
+	# handler declaration for a software or program interrupt
 .macro VECTOR_SOFTPROG tbr_tt, vec
 	.section .trap.user
 	.org		\tbr_tt
@@ -145,7 +145,7 @@ __break_kerneltrap_fixup_table:
 	.long		\vec
 .endm
 
-	# handler declaration for an MMU only sofware or program interrupt
+	# handler declaration for an MMU only software or program interrupt
 .macro VECTOR_SP_MMU tbr_tt, vec
 #ifdef CONFIG_MMU
  	VECTOR_SOFTPROG	\tbr_tt, \vec
diff --git a/arch/frv/kernel/irq-mb93091.c b/arch/frv/kernel/irq-mb93091.c
index 4dd9adaf115a..9afc2ea400dc 100644
--- a/arch/frv/kernel/irq-mb93091.c
+++ b/arch/frv/kernel/irq-mb93091.c
@@ -36,45 +36,45 @@
 /*
  * on-motherboard FPGA PIC operations
  */
-static void frv_fpga_mask(unsigned int irq)
+static void frv_fpga_mask(struct irq_data *d)
 {
 	uint16_t imr = __get_IMR();
 
-	imr |= 1 << (irq - IRQ_BASE_FPGA);
+	imr |= 1 << (d->irq - IRQ_BASE_FPGA);
 
 	__set_IMR(imr);
 }
 
-static void frv_fpga_ack(unsigned int irq)
+static void frv_fpga_ack(struct irq_data *d)
 {
-	__clr_IFR(1 << (irq - IRQ_BASE_FPGA));
+	__clr_IFR(1 << (d->irq - IRQ_BASE_FPGA));
 }
 
-static void frv_fpga_mask_ack(unsigned int irq)
+static void frv_fpga_mask_ack(struct irq_data *d)
 {
 	uint16_t imr = __get_IMR();
 
-	imr |= 1 << (irq - IRQ_BASE_FPGA);
+	imr |= 1 << (d->irq - IRQ_BASE_FPGA);
 	__set_IMR(imr);
 
-	__clr_IFR(1 << (irq - IRQ_BASE_FPGA));
+	__clr_IFR(1 << (d->irq - IRQ_BASE_FPGA));
 }
 
-static void frv_fpga_unmask(unsigned int irq)
+static void frv_fpga_unmask(struct irq_data *d)
 {
 	uint16_t imr = __get_IMR();
 
-	imr &= ~(1 << (irq - IRQ_BASE_FPGA));
+	imr &= ~(1 << (d->irq - IRQ_BASE_FPGA));
 
 	__set_IMR(imr);
 }
 
 static struct irq_chip frv_fpga_pic = {
 	.name		= "mb93091",
-	.ack		= frv_fpga_ack,
-	.mask		= frv_fpga_mask,
-	.mask_ack	= frv_fpga_mask_ack,
-	.unmask		= frv_fpga_unmask,
+	.irq_ack	= frv_fpga_ack,
+	.irq_mask	= frv_fpga_mask,
+	.irq_mask_ack	= frv_fpga_mask_ack,
+	.irq_unmask	= frv_fpga_unmask,
 };
 
 /*
@@ -146,9 +146,9 @@ void __init fpga_init(void)
 	__clr_IFR(0x0000);
 
 	for (irq = IRQ_BASE_FPGA + 1; irq <= IRQ_BASE_FPGA + 14; irq++)
-		set_irq_chip_and_handler(irq, &frv_fpga_pic, handle_level_irq);
+		irq_set_chip_and_handler(irq, &frv_fpga_pic, handle_level_irq);
 
-	set_irq_chip_and_handler(IRQ_FPGA_NMI, &frv_fpga_pic, handle_edge_irq);
+	irq_set_chip_and_handler(IRQ_FPGA_NMI, &frv_fpga_pic, handle_edge_irq);
 
 	/* the FPGA drives the first four external IRQ inputs on the CPU PIC */
 	setup_irq(IRQ_CPU_EXTERNAL0, &fpga_irq[0]);
diff --git a/arch/frv/kernel/irq-mb93093.c b/arch/frv/kernel/irq-mb93093.c
index e45209031873..4d4ad09d3c91 100644
--- a/arch/frv/kernel/irq-mb93093.c
+++ b/arch/frv/kernel/irq-mb93093.c
@@ -35,45 +35,44 @@
 /*
  * off-CPU FPGA PIC operations
  */
-static void frv_fpga_mask(unsigned int irq)
+static void frv_fpga_mask(struct irq_data *d)
 {
 	uint16_t imr = __get_IMR();
 
-	imr |= 1 << (irq - IRQ_BASE_FPGA);
+	imr |= 1 << (d->irq - IRQ_BASE_FPGA);
 	__set_IMR(imr);
 }
 
-static void frv_fpga_ack(unsigned int irq)
+static void frv_fpga_ack(struct irq_data *d)
 {
-	__clr_IFR(1 << (irq - IRQ_BASE_FPGA));
+	__clr_IFR(1 << (d->irq - IRQ_BASE_FPGA));
 }
 
-static void frv_fpga_mask_ack(unsigned int irq)
+static void frv_fpga_mask_ack(struct irq_data *d)
 {
 	uint16_t imr = __get_IMR();
 
-	imr |= 1 << (irq - IRQ_BASE_FPGA);
+	imr |= 1 << (d->irq - IRQ_BASE_FPGA);
 	__set_IMR(imr);
 
-	__clr_IFR(1 << (irq - IRQ_BASE_FPGA));
+	__clr_IFR(1 << (d->irq - IRQ_BASE_FPGA));
 }
 
-static void frv_fpga_unmask(unsigned int irq)
+static void frv_fpga_unmask(struct irq_data *d)
 {
 	uint16_t imr = __get_IMR();
 
-	imr &= ~(1 << (irq - IRQ_BASE_FPGA));
+	imr &= ~(1 << (d->irq - IRQ_BASE_FPGA));
 
 	__set_IMR(imr);
 }
 
 static struct irq_chip frv_fpga_pic = {
 	.name		= "mb93093",
-	.ack		= frv_fpga_ack,
-	.mask		= frv_fpga_mask,
-	.mask_ack	= frv_fpga_mask_ack,
-	.unmask		= frv_fpga_unmask,
-	.end		= frv_fpga_end,
+	.irq_ack	= frv_fpga_ack,
+	.irq_mask	= frv_fpga_mask,
+	.irq_mask_ack	= frv_fpga_mask_ack,
+	.irq_unmask	= frv_fpga_unmask,
 };
 
 /*
@@ -94,7 +93,7 @@ static irqreturn_t fpga_interrupt(int irq, void *_mask)
 		irq = 31 - irq;
 		mask &= ~(1 << irq);
 
-		generic_irq_handle(IRQ_BASE_FPGA + irq);
+		generic_handle_irq(IRQ_BASE_FPGA + irq);
 	}
 
 	return IRQ_HANDLED;
@@ -125,7 +124,7 @@ void __init fpga_init(void)
 	__clr_IFR(0x0000);
 
 	for (irq = IRQ_BASE_FPGA + 8; irq <= IRQ_BASE_FPGA + 10; irq++)
-		set_irq_chip_and_handler(irq, &frv_fpga_pic, handle_edge_irq);
+		irq_set_chip_and_handler(irq, &frv_fpga_pic, handle_edge_irq);
 
 	/* the FPGA drives external IRQ input #2 on the CPU PIC */
 	setup_irq(IRQ_CPU_EXTERNAL2, &fpga_irq[0]);
diff --git a/arch/frv/kernel/irq-mb93493.c b/arch/frv/kernel/irq-mb93493.c
index ba55ecdfb245..4d034c7840c9 100644
--- a/arch/frv/kernel/irq-mb93493.c
+++ b/arch/frv/kernel/irq-mb93493.c
@@ -45,46 +45,46 @@
  * daughter board PIC operations
  * - there is no way to ACK interrupts in the MB93493 chip
  */
-static void frv_mb93493_mask(unsigned int irq)
+static void frv_mb93493_mask(struct irq_data *d)
 {
 	uint32_t iqsr;
 	volatile void *piqsr;
 
-	if (IRQ_ROUTING & (1 << (irq - IRQ_BASE_MB93493)))
+	if (IRQ_ROUTING & (1 << (d->irq - IRQ_BASE_MB93493)))
 		piqsr = __addr_MB93493_IQSR(1);
 	else
 		piqsr = __addr_MB93493_IQSR(0);
 
 	iqsr = readl(piqsr);
-	iqsr &= ~(1 << (irq - IRQ_BASE_MB93493 + 16));
+	iqsr &= ~(1 << (d->irq - IRQ_BASE_MB93493 + 16));
 	writel(iqsr, piqsr);
 }
 
-static void frv_mb93493_ack(unsigned int irq)
+static void frv_mb93493_ack(struct irq_data *d)
 {
 }
 
-static void frv_mb93493_unmask(unsigned int irq)
+static void frv_mb93493_unmask(struct irq_data *d)
 {
 	uint32_t iqsr;
 	volatile void *piqsr;
 
-	if (IRQ_ROUTING & (1 << (irq - IRQ_BASE_MB93493)))
+	if (IRQ_ROUTING & (1 << (d->irq - IRQ_BASE_MB93493)))
 		piqsr = __addr_MB93493_IQSR(1);
 	else
 		piqsr = __addr_MB93493_IQSR(0);
 
 	iqsr = readl(piqsr);
-	iqsr |= 1 << (irq - IRQ_BASE_MB93493 + 16);
+	iqsr |= 1 << (d->irq - IRQ_BASE_MB93493 + 16);
 	writel(iqsr, piqsr);
 }
 
 static struct irq_chip frv_mb93493_pic = {
 	.name		= "mb93093",
-	.ack		= frv_mb93493_ack,
-	.mask		= frv_mb93493_mask,
-	.mask_ack	= frv_mb93493_mask,
-	.unmask		= frv_mb93493_unmask,
+	.irq_ack	= frv_mb93493_ack,
+	.irq_mask	= frv_mb93493_mask,
+	.irq_mask_ack	= frv_mb93493_mask,
+	.irq_unmask	= frv_mb93493_unmask,
 };
 
 /*
@@ -139,7 +139,8 @@ void __init mb93493_init(void)
 	int irq;
 
 	for (irq = IRQ_BASE_MB93493 + 0; irq <= IRQ_BASE_MB93493 + 10; irq++)
-		set_irq_chip_and_handler(irq, &frv_mb93493_pic, handle_edge_irq);
+		irq_set_chip_and_handler(irq, &frv_mb93493_pic,
+					 handle_edge_irq);
 
 	/* the MB93493 drives external IRQ inputs on the CPU PIC */
 	setup_irq(IRQ_CPU_MB93493_0, &mb93493_irq[0]);
diff --git a/arch/frv/kernel/irq.c b/arch/frv/kernel/irq.c
index 625136625a7f..a5f624a9f559 100644
--- a/arch/frv/kernel/irq.c
+++ b/arch/frv/kernel/irq.c
@@ -47,89 +47,45 @@ extern void __init mb93493_init(void);
 
 atomic_t irq_err_count;
 
-/*
- * Generic, controller-independent functions:
- */
-int show_interrupts(struct seq_file *p, void *v)
+int arch_show_interrupts(struct seq_file *p, int prec)
 {
-	int i = *(loff_t *) v, cpu;
-	struct irqaction * action;
-	unsigned long flags;
-
-	if (i == 0) {
-		char cpuname[12];
-
-		seq_printf(p, "    ");
-		for_each_present_cpu(cpu) {
-			sprintf(cpuname, "CPU%d", cpu);
-			seq_printf(p, " %10s", cpuname);
-		}
-		seq_putc(p, '\n');
-	}
-
-	if (i < NR_IRQS) {
-		raw_spin_lock_irqsave(&irq_desc[i].lock, flags);
-		action = irq_desc[i].action;
-		if (action) {
-			seq_printf(p, "%3d: ", i);
-			for_each_present_cpu(cpu)
-				seq_printf(p, "%10u ", kstat_irqs_cpu(i, cpu));
-			seq_printf(p, " %10s", irq_desc[i].chip->name ? : "-");
-			seq_printf(p, "  %s", action->name);
-			for (action = action->next;
-			     action;
-			     action = action->next)
-				seq_printf(p, ", %s", action->name);
-
-			seq_putc(p, '\n');
-		}
-
-		raw_spin_unlock_irqrestore(&irq_desc[i].lock, flags);
-	} else if (i == NR_IRQS) {
-		seq_printf(p, "Err: %10u\n", atomic_read(&irq_err_count));
-	}
-
+	seq_printf(p, "%*s: ", prec, "ERR");
+	seq_printf(p, "%10u\n", atomic_read(&irq_err_count));
 	return 0;
 }
 
 /*
  * on-CPU PIC operations
  */
-static void frv_cpupic_ack(unsigned int irqlevel)
+static void frv_cpupic_ack(struct irq_data *d)
 {
-	__clr_RC(irqlevel);
+	__clr_RC(d->irq);
 	__clr_IRL();
 }
 
-static void frv_cpupic_mask(unsigned int irqlevel)
+static void frv_cpupic_mask(struct irq_data *d)
 {
-	__set_MASK(irqlevel);
+	__set_MASK(d->irq);
 }
 
-static void frv_cpupic_mask_ack(unsigned int irqlevel)
+static void frv_cpupic_mask_ack(struct irq_data *d)
 {
-	__set_MASK(irqlevel);
-	__clr_RC(irqlevel);
+	__set_MASK(d->irq);
+	__clr_RC(d->irq);
 	__clr_IRL();
 }
 
-static void frv_cpupic_unmask(unsigned int irqlevel)
-{
-	__clr_MASK(irqlevel);
-}
-
-static void frv_cpupic_end(unsigned int irqlevel)
+static void frv_cpupic_unmask(struct irq_data *d)
 {
-	__clr_MASK(irqlevel);
+	__clr_MASK(d->irq);
 }
 
 static struct irq_chip frv_cpu_pic = {
 	.name		= "cpu",
-	.ack		= frv_cpupic_ack,
-	.mask		= frv_cpupic_mask,
-	.mask_ack	= frv_cpupic_mask_ack,
-	.unmask		= frv_cpupic_unmask,
-	.end		= frv_cpupic_end,
+	.irq_ack	= frv_cpupic_ack,
+	.irq_mask	= frv_cpupic_mask,
+	.irq_mask_ack	= frv_cpupic_mask_ack,
+	.irq_unmask	= frv_cpupic_unmask,
 };
 
 /*
@@ -161,10 +117,10 @@ void __init init_IRQ(void)
 	int level;
 
 	for (level = 1; level <= 14; level++)
-		set_irq_chip_and_handler(level, &frv_cpu_pic,
+		irq_set_chip_and_handler(level, &frv_cpu_pic,
 					 handle_level_irq);
 
-	set_irq_handler(IRQ_CPU_TIMER0, handle_edge_irq);
+	irq_set_handler(IRQ_CPU_TIMER0, handle_edge_irq);
 
 	/* set the trigger levels for internal interrupt sources
 	 * - timers all falling-edge
diff --git a/arch/h8300/Kconfig b/arch/h8300/Kconfig
index 9624db193e3c..e20322ffcaf8 100644
--- a/arch/h8300/Kconfig
+++ b/arch/h8300/Kconfig
@@ -3,7 +3,7 @@ config H8300
 	default y
 	select HAVE_IDE
 	select HAVE_GENERIC_HARDIRQS
-	select GENERIC_HARDIRQS_NO_DEPRECATED
+	select GENERIC_IRQ_SHOW
 
 config SYMBOL_PREFIX
 	string
diff --git a/arch/h8300/kernel/irq.c b/arch/h8300/kernel/irq.c
index 7643d39925d6..1f67fed476af 100644
--- a/arch/h8300/kernel/irq.c
+++ b/arch/h8300/kernel/irq.c
@@ -155,7 +155,7 @@ void __init init_IRQ(void)
 	setup_vector();
 
 	for (c = 0; c < NR_IRQS; c++)
-		set_irq_chip_and_handler(c, &h8300irq_chip, handle_simple_irq);
+		irq_set_chip_and_handler(c, &h8300irq_chip, handle_simple_irq);
 }
 
 asmlinkage void do_IRQ(int irq)
@@ -164,34 +164,3 @@ asmlinkage void do_IRQ(int irq)
 	generic_handle_irq(irq);
 	irq_exit();
 }
-
-#if defined(CONFIG_PROC_FS)
-int show_interrupts(struct seq_file *p, void *v)
-{
-	int i = *(loff_t *) v;
-	struct irqaction * action;
-	unsigned long flags;
-
-	if (i == 0)
-		seq_puts(p, "           CPU0");
-
-	if (i < NR_IRQS) {
-		raw_spin_lock_irqsave(&irq_desc[i].lock, flags);
-		action = irq_desc[i].action;
-		if (!action)
-			goto unlock;
-		seq_printf(p, "%3d: ",i);
-		seq_printf(p, "%10u ", kstat_irqs(i));
-		seq_printf(p, " %14s", irq_desc[i].irq_data.chip->name);
-		seq_printf(p, "-%-8s", irq_desc[i].name);
-		seq_printf(p, "  %s", action->name);
-
-		for (action=action->next; action; action = action->next)
-			seq_printf(p, ", %s", action->name);
-		seq_putc(p, '\n');
-unlock:
-		raw_spin_unlock_irqrestore(&irq_desc[i].lock, flags);
-	}
-	return 0;
-}
-#endif
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index fcf3b437a2d9..e5cc56ae6ce3 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -26,6 +26,7 @@ config IA64
 	select GENERIC_IRQ_PROBE
 	select GENERIC_PENDING_IRQ if SMP
 	select IRQ_PER_CPU
+	select GENERIC_IRQ_SHOW
 	default y
 	help
 	  The Itanium Processor Family is Intel's 64-bit successor to
@@ -413,11 +414,11 @@ config PERMIT_BSP_REMOVE
 	support. 
 
 config FORCE_CPEI_RETARGET
-	bool "Force assumption that CPEI can be re-targetted"
+	bool "Force assumption that CPEI can be re-targeted"
 	depends on PERMIT_BSP_REMOVE
 	default n
 	---help---
-	Say Y if you need to force the assumption that CPEI can be re-targetted to
+	Say Y if you need to force the assumption that CPEI can be re-targeted to
 	any cpu in the system. This hint is available via ACPI 3.0 specifications.
 	Tiger4 systems are capable of re-directing CPEI to any CPU other than BSP.
 	This option it useful to enable this feature on older BIOS's as well.
diff --git a/arch/ia64/hp/sim/hpsim_irq.c b/arch/ia64/hp/sim/hpsim_irq.c
index b272261d77cc..4bd9a63260ee 100644
--- a/arch/ia64/hp/sim/hpsim_irq.c
+++ b/arch/ia64/hp/sim/hpsim_irq.c
@@ -11,42 +11,41 @@
 #include <linux/irq.h>
 
 static unsigned int
-hpsim_irq_startup (unsigned int irq)
+hpsim_irq_startup(struct irq_data *data)
 {
 	return 0;
 }
 
 static void
-hpsim_irq_noop (unsigned int irq)
+hpsim_irq_noop(struct irq_data *data)
 {
 }
 
 static int
-hpsim_set_affinity_noop(unsigned int a, const struct cpumask *b)
+hpsim_set_affinity_noop(struct irq_data *d, const struct cpumask *b, bool f)
 {
 	return 0;
 }
 
 static struct irq_chip irq_type_hp_sim = {
-	.name =		"hpsim",
-	.startup =	hpsim_irq_startup,
-	.shutdown =	hpsim_irq_noop,
-	.enable =	hpsim_irq_noop,
-	.disable =	hpsim_irq_noop,
-	.ack =		hpsim_irq_noop,
-	.end =		hpsim_irq_noop,
-	.set_affinity =	hpsim_set_affinity_noop,
+	.name =			"hpsim",
+	.irq_startup =		hpsim_irq_startup,
+	.irq_shutdown =		hpsim_irq_noop,
+	.irq_enable =		hpsim_irq_noop,
+	.irq_disable =		hpsim_irq_noop,
+	.irq_ack =		hpsim_irq_noop,
+	.irq_set_affinity =	hpsim_set_affinity_noop,
 };
 
 void __init
 hpsim_irq_init (void)
 {
-	struct irq_desc *idesc;
 	int i;
 
-	for (i = 0; i < NR_IRQS; ++i) {
-		idesc = irq_desc + i;
-		if (idesc->chip == &no_irq_chip)
-			idesc->chip = &irq_type_hp_sim;
+	for_each_active_irq(i) {
+		struct irq_chip *chip = irq_get_chip(i);
+
+		if (chip == &no_irq_chip)
+			irq_set_chip(i, &irq_type_hp_sim);
 	}
 }
diff --git a/arch/ia64/include/asm/hw_irq.h b/arch/ia64/include/asm/hw_irq.h
index bf2e37493e04..a681d02cb324 100644
--- a/arch/ia64/include/asm/hw_irq.h
+++ b/arch/ia64/include/asm/hw_irq.h
@@ -151,9 +151,6 @@ static inline void ia64_native_resend_irq(unsigned int vector)
 /*
  * Default implementations for the irq-descriptor API:
  */
-
-extern struct irq_desc irq_desc[NR_IRQS];
-
 #ifndef CONFIG_IA64_GENERIC
 static inline ia64_vector __ia64_irq_to_vector(int irq)
 {
diff --git a/arch/ia64/include/asm/pal.h b/arch/ia64/include/asm/pal.h
index 6a292505b396..2e69284df8e7 100644
--- a/arch/ia64/include/asm/pal.h
+++ b/arch/ia64/include/asm/pal.h
@@ -1669,7 +1669,7 @@ typedef union pal_vp_info_u {
 } pal_vp_info_u_t;
 
 /*
- * Returns infomation about virtual processor features
+ * Returns information about virtual processor features
  */
 static inline s64
 ia64_pal_vp_info (u64 feature_set, u64 vp_buffer, u64 *vp_info, u64 *vmm_id)
diff --git a/arch/ia64/include/asm/perfmon_default_smpl.h b/arch/ia64/include/asm/perfmon_default_smpl.h
index 74724b24c2b7..a2d560c67230 100644
--- a/arch/ia64/include/asm/perfmon_default_smpl.h
+++ b/arch/ia64/include/asm/perfmon_default_smpl.h
@@ -67,8 +67,8 @@ typedef struct {
         unsigned long   ip;                     /* where did the overflow interrupt happened  */
         unsigned long   tstamp;                 /* ar.itc when entering perfmon intr. handler */
 
-        unsigned short  cpu;                    /* cpu on which the overflow occured */
-        unsigned short  set;                    /* event set active when overflow ocurred   */
+        unsigned short  cpu;                    /* cpu on which the overflow occurred */
+        unsigned short  set;                    /* event set active when overflow occurred   */
         int    		tgid;              	/* thread group id (for NPTL, this is getpid()) */
 } pfm_default_smpl_entry_t;
 
diff --git a/arch/ia64/include/asm/sn/bte.h b/arch/ia64/include/asm/sn/bte.h
index 96798d2da7c2..cc6c4dbf53af 100644
--- a/arch/ia64/include/asm/sn/bte.h
+++ b/arch/ia64/include/asm/sn/bte.h
@@ -216,7 +216,7 @@ extern void bte_error_handler(unsigned long);
 	bte_copy(0, dest, len, ((mode) | BTE_ZERO_FILL), notification)
 
 /*
- * The following is the prefered way of calling bte_unaligned_copy
+ * The following is the preferred way of calling bte_unaligned_copy
  * If the copy is fully cache line aligned, then bte_copy is
  * used instead.  Since bte_copy is inlined, this saves a call
  * stack.  NOTE: bte_copy is called synchronously and does block
diff --git a/arch/ia64/include/asm/sn/shub_mmr.h b/arch/ia64/include/asm/sn/shub_mmr.h
index 7de1d1d4b71a..a84d870f4294 100644
--- a/arch/ia64/include/asm/sn/shub_mmr.h
+++ b/arch/ia64/include/asm/sn/shub_mmr.h
@@ -459,7 +459,7 @@
 /* ==================================================================== */
 /* Some MMRs are functionally identical (or close enough) on both SHUB1 */
 /* and SHUB2 that it makes sense to define a geberic name for the MMR.  */
-/* It is acceptible to use (for example) SH_IPI_INT to reference the    */
+/* It is acceptable to use (for example) SH_IPI_INT to reference the    */
 /* the IPI MMR. The value of SH_IPI_INT is determined at runtime based  */
 /* on the type of the SHUB. Do not use these #defines in performance    */
 /* critical code  or loops - there is a small performance penalty.      */
diff --git a/arch/ia64/include/asm/sn/shubio.h b/arch/ia64/include/asm/sn/shubio.h
index 6052422a22b3..ecb8a49476b6 100644
--- a/arch/ia64/include/asm/sn/shubio.h
+++ b/arch/ia64/include/asm/sn/shubio.h
@@ -1383,7 +1383,7 @@ typedef union ii_ibcr_u {
  * response is capture in IXSM and IXSS, and IXSS[VALID] is set. The    *
  * errant header is thereby captured, and no further spurious read      *
  * respones are captured until IXSS[VALID] is cleared by setting the    *
- * appropriate bit in IECLR.Everytime a spurious read response is       *
+ * appropriate bit in IECLR. Every time a spurious read response is     *
  * detected, the SPUR_RD bit of the PRB corresponding to the incoming   *
  * message's SIDN field is set. This always happens, regarless of       *
  * whether a header is captured. The programmer should check            *
@@ -2738,7 +2738,7 @@ typedef union ii_ippr_u {
 /************************************************************************
  *									*
  * The following defines which were not formed into structures are	*
- * probably indentical to another register, and the name of the		*
+ * probably identical to another register, and the name of the		*
  * register is provided against each of these registers. This		*
  * information needs to be checked carefully				*
  *									*
diff --git a/arch/ia64/kernel/cyclone.c b/arch/ia64/kernel/cyclone.c
index d52f1f78eff2..1b811c61bdc6 100644
--- a/arch/ia64/kernel/cyclone.c
+++ b/arch/ia64/kernel/cyclone.c
@@ -31,7 +31,7 @@ static struct clocksource clocksource_cyclone = {
         .rating         = 300,
         .read           = read_cyclone,
         .mask           = (1LL << 40) - 1,
-        .mult           = 0, /*to be caluclated*/
+        .mult           = 0, /*to be calculated*/
         .shift          = 16,
         .flags          = CLOCK_SOURCE_IS_CONTINUOUS,
 };
diff --git a/arch/ia64/kernel/iosapic.c b/arch/ia64/kernel/iosapic.c
index 22c38404f539..b0f9afebb146 100644
--- a/arch/ia64/kernel/iosapic.c
+++ b/arch/ia64/kernel/iosapic.c
@@ -257,7 +257,7 @@ set_rte (unsigned int gsi, unsigned int irq, unsigned int dest, int mask)
 }
 
 static void
-nop (unsigned int irq)
+nop (struct irq_data *data)
 {
 	/* do nothing... */
 }
@@ -287,8 +287,9 @@ kexec_disable_iosapic(void)
 #endif
 
 static void
-mask_irq (unsigned int irq)
+mask_irq (struct irq_data *data)
 {
+	unsigned int irq = data->irq;
 	u32 low32;
 	int rte_index;
 	struct iosapic_rte_info *rte;
@@ -305,8 +306,9 @@ mask_irq (unsigned int irq)
 }
 
 static void
-unmask_irq (unsigned int irq)
+unmask_irq (struct irq_data *data)
 {
+	unsigned int irq = data->irq;
 	u32 low32;
 	int rte_index;
 	struct iosapic_rte_info *rte;
@@ -323,9 +325,11 @@ unmask_irq (unsigned int irq)
 
 
 static int
-iosapic_set_affinity(unsigned int irq, const struct cpumask *mask)
+iosapic_set_affinity(struct irq_data *data, const struct cpumask *mask,
+		     bool force)
 {
 #ifdef CONFIG_SMP
+	unsigned int irq = data->irq;
 	u32 high32, low32;
 	int cpu, dest, rte_index;
 	int redir = (irq & IA64_IRQ_REDIRECTED) ? 1 : 0;
@@ -379,32 +383,33 @@ iosapic_set_affinity(unsigned int irq, const struct cpumask *mask)
  */
 
 static unsigned int
-iosapic_startup_level_irq (unsigned int irq)
+iosapic_startup_level_irq (struct irq_data *data)
 {
-	unmask_irq(irq);
+	unmask_irq(data);
 	return 0;
 }
 
 static void
-iosapic_unmask_level_irq (unsigned int irq)
+iosapic_unmask_level_irq (struct irq_data *data)
 {
+	unsigned int irq = data->irq;
 	ia64_vector vec = irq_to_vector(irq);
 	struct iosapic_rte_info *rte;
 	int do_unmask_irq = 0;
 
 	irq_complete_move(irq);
-	if (unlikely(irq_desc[irq].status & IRQ_MOVE_PENDING)) {
+	if (unlikely(irqd_is_setaffinity_pending(data))) {
 		do_unmask_irq = 1;
-		mask_irq(irq);
+		mask_irq(data);
 	} else
-		unmask_irq(irq);
+		unmask_irq(data);
 
 	list_for_each_entry(rte, &iosapic_intr_info[irq].rtes, rte_list)
 		iosapic_eoi(rte->iosapic->addr, vec);
 
 	if (unlikely(do_unmask_irq)) {
-		move_masked_irq(irq);
-		unmask_irq(irq);
+		irq_move_masked_irq(data);
+		unmask_irq(data);
 	}
 }
 
@@ -414,15 +419,15 @@ iosapic_unmask_level_irq (unsigned int irq)
 #define iosapic_ack_level_irq		nop
 
 static struct irq_chip irq_type_iosapic_level = {
-	.name =		"IO-SAPIC-level",
-	.startup =	iosapic_startup_level_irq,
-	.shutdown =	iosapic_shutdown_level_irq,
-	.enable =	iosapic_enable_level_irq,
-	.disable =	iosapic_disable_level_irq,
-	.ack =		iosapic_ack_level_irq,
-	.mask =		mask_irq,
-	.unmask =	iosapic_unmask_level_irq,
-	.set_affinity =	iosapic_set_affinity
+	.name =			"IO-SAPIC-level",
+	.irq_startup =		iosapic_startup_level_irq,
+	.irq_shutdown =		iosapic_shutdown_level_irq,
+	.irq_enable =		iosapic_enable_level_irq,
+	.irq_disable =		iosapic_disable_level_irq,
+	.irq_ack =		iosapic_ack_level_irq,
+	.irq_mask =		mask_irq,
+	.irq_unmask =		iosapic_unmask_level_irq,
+	.irq_set_affinity =	iosapic_set_affinity
 };
 
 /*
@@ -430,9 +435,9 @@ static struct irq_chip irq_type_iosapic_level = {
  */
 
 static unsigned int
-iosapic_startup_edge_irq (unsigned int irq)
+iosapic_startup_edge_irq (struct irq_data *data)
 {
-	unmask_irq(irq);
+	unmask_irq(data);
 	/*
 	 * IOSAPIC simply drops interrupts pended while the
 	 * corresponding pin was masked, so we can't know if an
@@ -442,37 +447,25 @@ iosapic_startup_edge_irq (unsigned int irq)
 }
 
 static void
-iosapic_ack_edge_irq (unsigned int irq)
+iosapic_ack_edge_irq (struct irq_data *data)
 {
-	struct irq_desc *idesc = irq_desc + irq;
-
-	irq_complete_move(irq);
-	move_native_irq(irq);
-	/*
-	 * Once we have recorded IRQ_PENDING already, we can mask the
-	 * interrupt for real. This prevents IRQ storms from unhandled
-	 * devices.
-	 */
-	if ((idesc->status & (IRQ_PENDING|IRQ_DISABLED)) ==
-	    (IRQ_PENDING|IRQ_DISABLED))
-		mask_irq(irq);
+	irq_complete_move(data->irq);
+	irq_move_irq(data);
 }
 
 #define iosapic_enable_edge_irq		unmask_irq
 #define iosapic_disable_edge_irq	nop
-#define iosapic_end_edge_irq		nop
 
 static struct irq_chip irq_type_iosapic_edge = {
-	.name =		"IO-SAPIC-edge",
-	.startup =	iosapic_startup_edge_irq,
-	.shutdown =	iosapic_disable_edge_irq,
-	.enable =	iosapic_enable_edge_irq,
-	.disable =	iosapic_disable_edge_irq,
-	.ack =		iosapic_ack_edge_irq,
-	.end =		iosapic_end_edge_irq,
-	.mask =		mask_irq,
-	.unmask =	unmask_irq,
-	.set_affinity =	iosapic_set_affinity
+	.name =			"IO-SAPIC-edge",
+	.irq_startup =		iosapic_startup_edge_irq,
+	.irq_shutdown =		iosapic_disable_edge_irq,
+	.irq_enable =		iosapic_enable_edge_irq,
+	.irq_disable =		iosapic_disable_edge_irq,
+	.irq_ack =		iosapic_ack_edge_irq,
+	.irq_mask =		mask_irq,
+	.irq_unmask =		unmask_irq,
+	.irq_set_affinity =	iosapic_set_affinity
 };
 
 static unsigned int
@@ -562,8 +555,7 @@ static int
 register_intr (unsigned int gsi, int irq, unsigned char delivery,
 	       unsigned long polarity, unsigned long trigger)
 {
-	struct irq_desc *idesc;
-	struct irq_chip *irq_type;
+	struct irq_chip *chip, *irq_type;
 	int index;
 	struct iosapic_rte_info *rte;
 
@@ -610,19 +602,18 @@ register_intr (unsigned int gsi, int irq, unsigned char delivery,
 
 	irq_type = iosapic_get_irq_chip(trigger);
 
-	idesc = irq_desc + irq;
-	if (irq_type != NULL && idesc->chip != irq_type) {
-		if (idesc->chip != &no_irq_chip)
+	chip = irq_get_chip(irq);
+	if (irq_type != NULL && chip != irq_type) {
+		if (chip != &no_irq_chip)
 			printk(KERN_WARNING
 			       "%s: changing vector %d from %s to %s\n",
 			       __func__, irq_to_vector(irq),
-			       idesc->chip->name, irq_type->name);
-		idesc->chip = irq_type;
+			       chip->name, irq_type->name);
+		chip = irq_type;
 	}
-	if (trigger == IOSAPIC_EDGE)
-		__set_irq_handler_unlocked(irq, handle_edge_irq);
-	else
-		__set_irq_handler_unlocked(irq, handle_level_irq);
+	__irq_set_chip_handler_name_locked(irq, chip, trigger == IOSAPIC_EDGE ?
+					   handle_edge_irq : handle_level_irq,
+					   NULL);
 	return 0;
 }
 
@@ -732,6 +723,7 @@ iosapic_register_intr (unsigned int gsi,
 	struct iosapic_rte_info *rte;
 	u32 low32;
 	unsigned char dmode;
+	struct irq_desc *desc;
 
 	/*
 	 * If this GSI has already been registered (i.e., it's a
@@ -759,12 +751,13 @@ iosapic_register_intr (unsigned int gsi,
 			goto unlock_iosapic_lock;
 	}
 
-	raw_spin_lock(&irq_desc[irq].lock);
+	desc = irq_to_desc(irq);
+	raw_spin_lock(&desc->lock);
 	dest = get_target_cpu(gsi, irq);
 	dmode = choose_dmode();
 	err = register_intr(gsi, irq, dmode, polarity, trigger);
 	if (err < 0) {
-		raw_spin_unlock(&irq_desc[irq].lock);
+		raw_spin_unlock(&desc->lock);
 		irq = err;
 		goto unlock_iosapic_lock;
 	}
@@ -783,7 +776,7 @@ iosapic_register_intr (unsigned int gsi,
 	       (polarity == IOSAPIC_POL_HIGH ? "high" : "low"),
 	       cpu_logical_id(dest), dest, irq_to_vector(irq));
 
-	raw_spin_unlock(&irq_desc[irq].lock);
+	raw_spin_unlock(&desc->lock);
  unlock_iosapic_lock:
 	spin_unlock_irqrestore(&iosapic_lock, flags);
 	return irq;
@@ -794,7 +787,6 @@ iosapic_unregister_intr (unsigned int gsi)
 {
 	unsigned long flags;
 	int irq, index;
-	struct irq_desc *idesc;
 	u32 low32;
 	unsigned long trigger, polarity;
 	unsigned int dest;
@@ -824,7 +816,6 @@ iosapic_unregister_intr (unsigned int gsi)
 	if (--rte->refcnt > 0)
 		goto out;
 
-	idesc = irq_desc + irq;
 	rte->refcnt = NO_REF_RTE;
 
 	/* Mask the interrupt */
@@ -848,7 +839,7 @@ iosapic_unregister_intr (unsigned int gsi)
 	if (iosapic_intr_info[irq].count == 0) {
 #ifdef CONFIG_SMP
 		/* Clear affinity */
-		cpumask_setall(idesc->affinity);
+		cpumask_setall(irq_get_irq_data(irq)->affinity);
 #endif
 		/* Clear the interrupt information */
 		iosapic_intr_info[irq].dest = 0;
diff --git a/arch/ia64/kernel/irq.c b/arch/ia64/kernel/irq.c
index 94ee9d067cbd..ad69606613eb 100644
--- a/arch/ia64/kernel/irq.c
+++ b/arch/ia64/kernel/irq.c
@@ -53,47 +53,9 @@ atomic_t irq_err_count;
 /*
  * /proc/interrupts printing:
  */
-
-int show_interrupts(struct seq_file *p, void *v)
+int arch_show_interrupts(struct seq_file *p, int prec)
 {
-	int i = *(loff_t *) v, j;
-	struct irqaction * action;
-	unsigned long flags;
-
-	if (i == 0) {
-		char cpuname[16];
-		seq_printf(p, "     ");
-		for_each_online_cpu(j) {
-			snprintf(cpuname, 10, "CPU%d", j);
-			seq_printf(p, "%10s ", cpuname);
-		}
-		seq_putc(p, '\n');
-	}
-
-	if (i < NR_IRQS) {
-		raw_spin_lock_irqsave(&irq_desc[i].lock, flags);
-		action = irq_desc[i].action;
-		if (!action)
-			goto skip;
-		seq_printf(p, "%3d: ",i);
-#ifndef CONFIG_SMP
-		seq_printf(p, "%10u ", kstat_irqs(i));
-#else
-		for_each_online_cpu(j) {
-			seq_printf(p, "%10u ", kstat_irqs_cpu(i, j));
-		}
-#endif
-		seq_printf(p, " %14s", irq_desc[i].chip->name);
-		seq_printf(p, "  %s", action->name);
-
-		for (action=action->next; action; action = action->next)
-			seq_printf(p, ", %s", action->name);
-
-		seq_putc(p, '\n');
-skip:
-		raw_spin_unlock_irqrestore(&irq_desc[i].lock, flags);
-	} else if (i == NR_IRQS)
-		seq_printf(p, "ERR: %10u\n", atomic_read(&irq_err_count));
+	seq_printf(p, "ERR: %10u\n", atomic_read(&irq_err_count));
 	return 0;
 }
 
@@ -103,7 +65,7 @@ static char irq_redir [NR_IRQS]; // = { [0 ... NR_IRQS-1] = 1 };
 void set_irq_affinity_info (unsigned int irq, int hwid, int redir)
 {
 	if (irq < NR_IRQS) {
-		cpumask_copy(irq_desc[irq].affinity,
+		cpumask_copy(irq_get_irq_data(irq)->affinity,
 			     cpumask_of(cpu_logical_id(hwid)));
 		irq_redir[irq] = (char) (redir & 0xff);
 	}
@@ -130,13 +92,14 @@ unsigned int vectors_in_migration[NR_IRQS];
  */
 static void migrate_irqs(void)
 {
-	struct irq_desc *desc;
 	int 		irq, new_cpu;
 
 	for (irq=0; irq < NR_IRQS; irq++) {
-		desc = irq_desc + irq;
+		struct irq_desc *desc = irq_to_desc(irq);
+		struct irq_data *data = irq_desc_get_irq_data(desc);
+		struct irq_chip *chip = irq_data_get_irq_chip(data);
 
-		if (desc->status == IRQ_DISABLED)
+		if (irqd_irq_disabled(data))
 			continue;
 
 		/*
@@ -145,10 +108,10 @@ static void migrate_irqs(void)
 		 * tell CPU not to respond to these local intr sources.
 		 * such as ITV,CPEI,MCA etc.
 		 */
-		if (desc->status == IRQ_PER_CPU)
+		if (irqd_is_per_cpu(data))
 			continue;
 
-		if (cpumask_any_and(irq_desc[irq].affinity, cpu_online_mask)
+		if (cpumask_any_and(data->affinity, cpu_online_mask)
 		    >= nr_cpu_ids) {
 			/*
 			 * Save it for phase 2 processing
@@ -160,16 +123,16 @@ static void migrate_irqs(void)
 			/*
 			 * Al three are essential, currently WARN_ON.. maybe panic?
 			 */
-			if (desc->chip && desc->chip->disable &&
-				desc->chip->enable && desc->chip->set_affinity) {
-				desc->chip->disable(irq);
-				desc->chip->set_affinity(irq,
-							 cpumask_of(new_cpu));
-				desc->chip->enable(irq);
+			if (chip && chip->irq_disable &&
+				chip->irq_enable && chip->irq_set_affinity) {
+				chip->irq_disable(data);
+				chip->irq_set_affinity(data,
+						       cpumask_of(new_cpu), false);
+				chip->irq_enable(data);
 			} else {
-				WARN_ON((!(desc->chip) || !(desc->chip->disable) ||
-						!(desc->chip->enable) ||
-						!(desc->chip->set_affinity)));
+				WARN_ON((!chip || !chip->irq_disable ||
+					 !chip->irq_enable ||
+					 !chip->irq_set_affinity));
 			}
 		}
 	}
diff --git a/arch/ia64/kernel/irq_ia64.c b/arch/ia64/kernel/irq_ia64.c
index 38c07b866901..5b704740f160 100644
--- a/arch/ia64/kernel/irq_ia64.c
+++ b/arch/ia64/kernel/irq_ia64.c
@@ -343,7 +343,7 @@ static irqreturn_t smp_irq_move_cleanup_interrupt(int irq, void *dev_id)
 		if (irq < 0)
 			continue;
 
-		desc = irq_desc + irq;
+		desc = irq_to_desc(irq);
 		cfg = irq_cfg + irq;
 		raw_spin_lock(&desc->lock);
 		if (!cfg->move_cleanup_count)
@@ -626,17 +626,15 @@ static struct irqaction tlb_irqaction = {
 void
 ia64_native_register_percpu_irq (ia64_vector vec, struct irqaction *action)
 {
-	struct irq_desc *desc;
 	unsigned int irq;
 
 	irq = vec;
 	BUG_ON(bind_irq_vector(irq, vec, CPU_MASK_ALL));
-	desc = irq_desc + irq;
-	desc->status |= IRQ_PER_CPU;
-	set_irq_chip(irq, &irq_type_ia64_lsapic);
+	irq_set_status_flags(irq, IRQ_PER_CPU);
+	irq_set_chip(irq, &irq_type_ia64_lsapic);
 	if (action)
 		setup_irq(irq, action);
-	set_irq_handler(irq, handle_percpu_irq);
+	irq_set_handler(irq, handle_percpu_irq);
 }
 
 void __init
diff --git a/arch/ia64/kernel/irq_lsapic.c b/arch/ia64/kernel/irq_lsapic.c
index fc1549d4564d..1b3a776e5161 100644
--- a/arch/ia64/kernel/irq_lsapic.c
+++ b/arch/ia64/kernel/irq_lsapic.c
@@ -15,31 +15,30 @@
 #include <linux/irq.h>
 
 static unsigned int
-lsapic_noop_startup (unsigned int irq)
+lsapic_noop_startup (struct irq_data *data)
 {
 	return 0;
 }
 
 static void
-lsapic_noop (unsigned int irq)
+lsapic_noop (struct irq_data *data)
 {
 	/* nothing to do... */
 }
 
-static int lsapic_retrigger(unsigned int irq)
+static int lsapic_retrigger(struct irq_data *data)
 {
-	ia64_resend_irq(irq);
+	ia64_resend_irq(data->irq);
 
 	return 1;
 }
 
 struct irq_chip irq_type_ia64_lsapic = {
-	.name =		"LSAPIC",
-	.startup =	lsapic_noop_startup,
-	.shutdown =	lsapic_noop,
-	.enable =	lsapic_noop,
-	.disable =	lsapic_noop,
-	.ack =		lsapic_noop,
-	.end =		lsapic_noop,
-	.retrigger =	lsapic_retrigger,
+	.name =			"LSAPIC",
+	.irq_startup =		lsapic_noop_startup,
+	.irq_shutdown =		lsapic_noop,
+	.irq_enable =		lsapic_noop,
+	.irq_disable =		lsapic_noop,
+	.irq_ack =		lsapic_noop,
+	.irq_retrigger =	lsapic_retrigger,
 };
diff --git a/arch/ia64/kernel/mca.c b/arch/ia64/kernel/mca.c
index 80d50b83d419..84fb405eee87 100644
--- a/arch/ia64/kernel/mca.c
+++ b/arch/ia64/kernel/mca.c
@@ -2125,7 +2125,6 @@ ia64_mca_late_init(void)
 	cpe_poll_timer.function = ia64_mca_cpe_poll;
 
 	{
-		struct irq_desc *desc;
 		unsigned int irq;
 
 		if (cpe_vector >= 0) {
@@ -2133,8 +2132,7 @@ ia64_mca_late_init(void)
 			irq = local_vector_to_irq(cpe_vector);
 			if (irq > 0) {
 				cpe_poll_enabled = 0;
-				desc = irq_desc + irq;
-				desc->status |= IRQ_PER_CPU;
+				irq_set_status_flags(irq, IRQ_PER_CPU);
 				setup_irq(irq, &mca_cpe_irqaction);
 				ia64_cpe_irq = irq;
 				ia64_mca_register_cpev(cpe_vector);
diff --git a/arch/ia64/kernel/msi_ia64.c b/arch/ia64/kernel/msi_ia64.c
index 00b19a416eab..009df5434a7a 100644
--- a/arch/ia64/kernel/msi_ia64.c
+++ b/arch/ia64/kernel/msi_ia64.c
@@ -12,12 +12,13 @@
 static struct irq_chip	ia64_msi_chip;
 
 #ifdef CONFIG_SMP
-static int ia64_set_msi_irq_affinity(unsigned int irq,
-				      const cpumask_t *cpu_mask)
+static int ia64_set_msi_irq_affinity(struct irq_data *idata,
+				     const cpumask_t *cpu_mask, bool force)
 {
 	struct msi_msg msg;
 	u32 addr, data;
 	int cpu = first_cpu(*cpu_mask);
+	unsigned int irq = idata->irq;
 
 	if (!cpu_online(cpu))
 		return -1;
@@ -38,7 +39,7 @@ static int ia64_set_msi_irq_affinity(unsigned int irq,
 	msg.data = data;
 
 	write_msi_msg(irq, &msg);
-	cpumask_copy(irq_desc[irq].affinity, cpumask_of(cpu));
+	cpumask_copy(idata->affinity, cpumask_of(cpu));
 
 	return 0;
 }
@@ -55,7 +56,7 @@ int ia64_setup_msi_irq(struct pci_dev *pdev, struct msi_desc *desc)
 	if (irq < 0)
 		return irq;
 
-	set_irq_msi(irq, desc);
+	irq_set_msi_desc(irq, desc);
 	cpus_and(mask, irq_to_domain(irq), cpu_online_map);
 	dest_phys_id = cpu_physical_id(first_cpu(mask));
 	vector = irq_to_vector(irq);
@@ -74,7 +75,7 @@ int ia64_setup_msi_irq(struct pci_dev *pdev, struct msi_desc *desc)
 		MSI_DATA_VECTOR(vector);
 
 	write_msi_msg(irq, &msg);
-	set_irq_chip_and_handler(irq, &ia64_msi_chip, handle_edge_irq);
+	irq_set_chip_and_handler(irq, &ia64_msi_chip, handle_edge_irq);
 
 	return 0;
 }
@@ -84,16 +85,16 @@ void ia64_teardown_msi_irq(unsigned int irq)
 	destroy_irq(irq);
 }
 
-static void ia64_ack_msi_irq(unsigned int irq)
+static void ia64_ack_msi_irq(struct irq_data *data)
 {
-	irq_complete_move(irq);
-	move_native_irq(irq);
+	irq_complete_move(data->irq);
+	irq_move_irq(data);
 	ia64_eoi();
 }
 
-static int ia64_msi_retrigger_irq(unsigned int irq)
+static int ia64_msi_retrigger_irq(struct irq_data *data)
 {
-	unsigned int vector = irq_to_vector(irq);
+	unsigned int vector = irq_to_vector(data->irq);
 	ia64_resend_irq(vector);
 
 	return 1;
@@ -103,14 +104,14 @@ static int ia64_msi_retrigger_irq(unsigned int irq)
  * Generic ops used on most IA64 platforms.
  */
 static struct irq_chip ia64_msi_chip = {
-	.name		= "PCI-MSI",
-	.irq_mask	= mask_msi_irq,
-	.irq_unmask	= unmask_msi_irq,
-	.ack		= ia64_ack_msi_irq,
+	.name			= "PCI-MSI",
+	.irq_mask		= mask_msi_irq,
+	.irq_unmask		= unmask_msi_irq,
+	.irq_ack		= ia64_ack_msi_irq,
 #ifdef CONFIG_SMP
-	.set_affinity	= ia64_set_msi_irq_affinity,
+	.irq_set_affinity	= ia64_set_msi_irq_affinity,
 #endif
-	.retrigger	= ia64_msi_retrigger_irq,
+	.irq_retrigger		= ia64_msi_retrigger_irq,
 };
 
 
@@ -132,8 +133,10 @@ void arch_teardown_msi_irq(unsigned int irq)
 
 #ifdef CONFIG_DMAR
 #ifdef CONFIG_SMP
-static int dmar_msi_set_affinity(unsigned int irq, const struct cpumask *mask)
+static int dmar_msi_set_affinity(struct irq_data *data,
+				 const struct cpumask *mask, bool force)
 {
+	unsigned int irq = data->irq;
 	struct irq_cfg *cfg = irq_cfg + irq;
 	struct msi_msg msg;
 	int cpu = cpumask_first(mask);
@@ -152,7 +155,7 @@ static int dmar_msi_set_affinity(unsigned int irq, const struct cpumask *mask)
 	msg.address_lo |= MSI_ADDR_DEST_ID_CPU(cpu_physical_id(cpu));
 
 	dmar_msi_write(irq, &msg);
-	cpumask_copy(irq_desc[irq].affinity, mask);
+	cpumask_copy(data->affinity, mask);
 
 	return 0;
 }
@@ -162,11 +165,11 @@ static struct irq_chip dmar_msi_type = {
 	.name = "DMAR_MSI",
 	.irq_unmask = dmar_msi_unmask,
 	.irq_mask = dmar_msi_mask,
-	.ack = ia64_ack_msi_irq,
+	.irq_ack = ia64_ack_msi_irq,
 #ifdef CONFIG_SMP
-	.set_affinity = dmar_msi_set_affinity,
+	.irq_set_affinity = dmar_msi_set_affinity,
 #endif
-	.retrigger = ia64_msi_retrigger_irq,
+	.irq_retrigger = ia64_msi_retrigger_irq,
 };
 
 static int
@@ -203,8 +206,8 @@ int arch_setup_dmar_msi(unsigned int irq)
 	if (ret < 0)
 		return ret;
 	dmar_msi_write(irq, &msg);
-	set_irq_chip_and_handler_name(irq, &dmar_msi_type, handle_edge_irq,
-		"edge");
+	irq_set_chip_and_handler_name(irq, &dmar_msi_type, handle_edge_irq,
+				      "edge");
 	return 0;
 }
 #endif /* CONFIG_DMAR */
diff --git a/arch/ia64/kernel/perfmon_default_smpl.c b/arch/ia64/kernel/perfmon_default_smpl.c
index 5f637bbfcccd..30c644ea44c9 100644
--- a/arch/ia64/kernel/perfmon_default_smpl.c
+++ b/arch/ia64/kernel/perfmon_default_smpl.c
@@ -150,7 +150,7 @@ default_handler(struct task_struct *task, void *buf, pfm_ovfl_arg_t *arg, struct
 	 * current = task running at the time of the overflow.
 	 *
 	 * per-task mode:
-	 * 	- this is ususally the task being monitored.
+	 * 	- this is usually the task being monitored.
 	 * 	  Under certain conditions, it might be a different task
 	 *
 	 * system-wide:
diff --git a/arch/ia64/kernel/smpboot.c b/arch/ia64/kernel/smpboot.c
index d003b502a432..14ec641003da 100644
--- a/arch/ia64/kernel/smpboot.c
+++ b/arch/ia64/kernel/smpboot.c
@@ -677,7 +677,7 @@ extern void fixup_irqs(void);
 int migrate_platform_irqs(unsigned int cpu)
 {
 	int new_cpei_cpu;
-	struct irq_desc *desc = NULL;
+	struct irq_data *data = NULL;
 	const struct cpumask *mask;
 	int 		retval = 0;
 
@@ -693,20 +693,20 @@ int migrate_platform_irqs(unsigned int cpu)
 			new_cpei_cpu = any_online_cpu(cpu_online_map);
 			mask = cpumask_of(new_cpei_cpu);
 			set_cpei_target_cpu(new_cpei_cpu);
-			desc = irq_desc + ia64_cpe_irq;
+			data = irq_get_irq_data(ia64_cpe_irq);
 			/*
 			 * Switch for now, immediately, we need to do fake intr
 			 * as other interrupts, but need to study CPEI behaviour with
 			 * polling before making changes.
 			 */
-			if (desc) {
-				desc->chip->disable(ia64_cpe_irq);
-				desc->chip->set_affinity(ia64_cpe_irq, mask);
-				desc->chip->enable(ia64_cpe_irq);
-				printk ("Re-targetting CPEI to cpu %d\n", new_cpei_cpu);
+			if (data && data->chip) {
+				data->chip->irq_disable(data);
+				data->chip->irq_set_affinity(data, mask, false);
+				data->chip->irq_enable(data);
+				printk ("Re-targeting CPEI to cpu %d\n", new_cpei_cpu);
 			}
 		}
-		if (!desc) {
+		if (!data) {
 			printk ("Unable to retarget CPEI, offline cpu [%d] failed\n", cpu);
 			retval = -EBUSY;
 		}
diff --git a/arch/ia64/kernel/topology.c b/arch/ia64/kernel/topology.c
index 0baa1bbb65fe..0e0e0cc9e392 100644
--- a/arch/ia64/kernel/topology.c
+++ b/arch/ia64/kernel/topology.c
@@ -43,7 +43,7 @@ int __ref arch_register_cpu(int num)
 {
 #ifdef CONFIG_ACPI
 	/*
-	 * If CPEI can be re-targetted or if this is not
+	 * If CPEI can be re-targeted or if this is not
 	 * CPEI target, then it is hotpluggable
 	 */
 	if (can_cpei_retarget() || !is_cpu_cpei_target(num))
diff --git a/arch/ia64/kvm/process.c b/arch/ia64/kvm/process.c
index bb862fb224f2..b0398740b48d 100644
--- a/arch/ia64/kvm/process.c
+++ b/arch/ia64/kvm/process.c
@@ -987,7 +987,7 @@ static void vmm_sanity_check(struct kvm_vcpu *vcpu)
 
 static void kvm_do_resume_op(struct kvm_vcpu *vcpu)
 {
-	vmm_sanity_check(vcpu); /*Guarantee vcpu runing on healthy vmm!*/
+	vmm_sanity_check(vcpu); /*Guarantee vcpu running on healthy vmm!*/
 
 	if (test_and_clear_bit(KVM_REQ_RESUME, &vcpu->requests)) {
 		vcpu_do_resume(vcpu);
diff --git a/arch/ia64/lib/do_csum.S b/arch/ia64/lib/do_csum.S
index 6bec2fc9f5b2..1a431a5cf86f 100644
--- a/arch/ia64/lib/do_csum.S
+++ b/arch/ia64/lib/do_csum.S
@@ -201,7 +201,7 @@ GLOBAL_ENTRY(do_csum)
 	;;
 (p6)	adds result1[0]=1,result1[0]
 (p9)	br.cond.sptk .do_csum_exit	// if (count == 1) exit
-	// Fall through to caluculate the checksum, feeding result1[0] as
+	// Fall through to calculate the checksum, feeding result1[0] as
 	// the initial value in result1[0].
 	//
 	// Calculate the checksum loading two 8-byte words per loop.
diff --git a/arch/ia64/mm/contig.c b/arch/ia64/mm/contig.c
index 54bf54059811..9a018cde5d84 100644
--- a/arch/ia64/mm/contig.c
+++ b/arch/ia64/mm/contig.c
@@ -36,7 +36,7 @@ static unsigned long max_gap;
  * Shows a simple page count of reserved and used pages in the system.
  * For discontig machines, it does this on a per-pgdat basis.
  */
-void show_mem(void)
+void show_mem(unsigned int filter)
 {
 	int i, total_reserved = 0;
 	int total_shared = 0, total_cached = 0;
diff --git a/arch/ia64/mm/discontig.c b/arch/ia64/mm/discontig.c
index 61620323bb60..82ab1bc6afb1 100644
--- a/arch/ia64/mm/discontig.c
+++ b/arch/ia64/mm/discontig.c
@@ -614,7 +614,7 @@ void __cpuinit *per_cpu_init(void)
  * Shows a simple page count of reserved and used pages in the system.
  * For discontig machines, it does this on a per-pgdat basis.
  */
-void show_mem(void)
+void show_mem(unsigned int filter)
 {
 	int i, total_reserved = 0;
 	int total_shared = 0, total_cached = 0;
diff --git a/arch/ia64/sn/kernel/irq.c b/arch/ia64/sn/kernel/irq.c
index 13c15d968098..81a1f4e6bcd8 100644
--- a/arch/ia64/sn/kernel/irq.c
+++ b/arch/ia64/sn/kernel/irq.c
@@ -23,11 +23,9 @@
 #include <asm/sn/sn_sal.h>
 #include <asm/sn/sn_feature_sets.h>
 
-static void force_interrupt(int irq);
 static void register_intr_pda(struct sn_irq_info *sn_irq_info);
 static void unregister_intr_pda(struct sn_irq_info *sn_irq_info);
 
-int sn_force_interrupt_flag = 1;
 extern int sn_ioif_inited;
 struct list_head **sn_irq_lh;
 static DEFINE_SPINLOCK(sn_irq_info_lock); /* non-IRQ lock */
@@ -78,62 +76,40 @@ u64 sn_intr_redirect(nasid_t local_nasid, int local_widget,
 	return ret_stuff.status;
 }
 
-static unsigned int sn_startup_irq(unsigned int irq)
+static unsigned int sn_startup_irq(struct irq_data *data)
 {
 	return 0;
 }
 
-static void sn_shutdown_irq(unsigned int irq)
+static void sn_shutdown_irq(struct irq_data *data)
 {
 }
 
 extern void ia64_mca_register_cpev(int);
 
-static void sn_disable_irq(unsigned int irq)
+static void sn_disable_irq(struct irq_data *data)
 {
-	if (irq == local_vector_to_irq(IA64_CPE_VECTOR))
+	if (data->irq == local_vector_to_irq(IA64_CPE_VECTOR))
 		ia64_mca_register_cpev(0);
 }
 
-static void sn_enable_irq(unsigned int irq)
+static void sn_enable_irq(struct irq_data *data)
 {
-	if (irq == local_vector_to_irq(IA64_CPE_VECTOR))
-		ia64_mca_register_cpev(irq);
+	if (data->irq == local_vector_to_irq(IA64_CPE_VECTOR))
+		ia64_mca_register_cpev(data->irq);
 }
 
-static void sn_ack_irq(unsigned int irq)
+static void sn_ack_irq(struct irq_data *data)
 {
 	u64 event_occurred, mask;
+	unsigned int irq = data->irq & 0xff;
 
-	irq = irq & 0xff;
 	event_occurred = HUB_L((u64*)LOCAL_MMR_ADDR(SH_EVENT_OCCURRED));
 	mask = event_occurred & SH_ALL_INT_MASK;
 	HUB_S((u64*)LOCAL_MMR_ADDR(SH_EVENT_OCCURRED_ALIAS), mask);
 	__set_bit(irq, (volatile void *)pda->sn_in_service_ivecs);
 
-	move_native_irq(irq);
-}
-
-static void sn_end_irq(unsigned int irq)
-{
-	int ivec;
-	u64 event_occurred;
-
-	ivec = irq & 0xff;
-	if (ivec == SGI_UART_VECTOR) {
-		event_occurred = HUB_L((u64*)LOCAL_MMR_ADDR (SH_EVENT_OCCURRED));
-		/* If the UART bit is set here, we may have received an
-		 * interrupt from the UART that the driver missed.  To
-		 * make sure, we IPI ourselves to force us to look again.
-		 */
-		if (event_occurred & SH_EVENT_OCCURRED_UART_INT_MASK) {
-			platform_send_ipi(smp_processor_id(), SGI_UART_VECTOR,
-					  IA64_IPI_DM_INT, 0);
-		}
-	}
-	__clear_bit(ivec, (volatile void *)pda->sn_in_service_ivecs);
-	if (sn_force_interrupt_flag)
-		force_interrupt(irq);
+	irq_move_irq(data);
 }
 
 static void sn_irq_info_free(struct rcu_head *head);
@@ -228,9 +204,11 @@ finish_up:
 	return new_irq_info;
 }
 
-static int sn_set_affinity_irq(unsigned int irq, const struct cpumask *mask)
+static int sn_set_affinity_irq(struct irq_data *data,
+			       const struct cpumask *mask, bool force)
 {
 	struct sn_irq_info *sn_irq_info, *sn_irq_info_safe;
+	unsigned int irq = data->irq;
 	nasid_t nasid;
 	int slice;
 
@@ -249,7 +227,7 @@ void sn_set_err_irq_affinity(unsigned int irq)
 {
         /*
          * On systems which support CPU disabling (SHub2), all error interrupts
-         * are targetted at the boot CPU.
+         * are targeted at the boot CPU.
          */
         if (is_shub2() && sn_prom_feature_available(PRF_CPU_DISABLE_SUPPORT))
                 set_irq_affinity_info(irq, cpu_physical_id(0), 0);
@@ -259,26 +237,25 @@ void sn_set_err_irq_affinity(unsigned int irq) { }
 #endif
 
 static void
-sn_mask_irq(unsigned int irq)
+sn_mask_irq(struct irq_data *data)
 {
 }
 
 static void
-sn_unmask_irq(unsigned int irq)
+sn_unmask_irq(struct irq_data *data)
 {
 }
 
 struct irq_chip irq_type_sn = {
-	.name		= "SN hub",
-	.startup	= sn_startup_irq,
-	.shutdown	= sn_shutdown_irq,
-	.enable		= sn_enable_irq,
-	.disable	= sn_disable_irq,
-	.ack		= sn_ack_irq,
-	.end		= sn_end_irq,
-	.mask		= sn_mask_irq,
-	.unmask		= sn_unmask_irq,
-	.set_affinity	= sn_set_affinity_irq
+	.name			= "SN hub",
+	.irq_startup		= sn_startup_irq,
+	.irq_shutdown		= sn_shutdown_irq,
+	.irq_enable		= sn_enable_irq,
+	.irq_disable		= sn_disable_irq,
+	.irq_ack		= sn_ack_irq,
+	.irq_mask		= sn_mask_irq,
+	.irq_unmask		= sn_unmask_irq,
+	.irq_set_affinity	= sn_set_affinity_irq
 };
 
 ia64_vector sn_irq_to_vector(int irq)
@@ -296,15 +273,13 @@ unsigned int sn_local_vector_to_irq(u8 vector)
 void sn_irq_init(void)
 {
 	int i;
-	struct irq_desc *base_desc = irq_desc;
 
 	ia64_first_device_vector = IA64_SN2_FIRST_DEVICE_VECTOR;
 	ia64_last_device_vector = IA64_SN2_LAST_DEVICE_VECTOR;
 
 	for (i = 0; i < NR_IRQS; i++) {
-		if (base_desc[i].chip == &no_irq_chip) {
-			base_desc[i].chip = &irq_type_sn;
-		}
+		if (irq_get_chip(i) == &no_irq_chip)
+			irq_set_chip(i, &irq_type_sn);
 	}
 }
 
@@ -378,7 +353,6 @@ void sn_irq_fixup(struct pci_dev *pci_dev, struct sn_irq_info *sn_irq_info)
 	int cpu = nasid_slice_to_cpuid(nasid, slice);
 #ifdef CONFIG_SMP
 	int cpuphys;
-	struct irq_desc *desc;
 #endif
 
 	pci_dev_get(pci_dev);
@@ -395,12 +369,11 @@ void sn_irq_fixup(struct pci_dev *pci_dev, struct sn_irq_info *sn_irq_info)
 #ifdef CONFIG_SMP
 	cpuphys = cpu_physical_id(cpu);
 	set_irq_affinity_info(sn_irq_info->irq_irq, cpuphys, 0);
-	desc = irq_to_desc(sn_irq_info->irq_irq);
 	/*
 	 * Affinity was set by the PROM, prevent it from
 	 * being reset by the request_irq() path.
 	 */
-	desc->status |= IRQ_AFFINITY_SET;
+	irqd_mark_affinity_was_set(irq_get_irq_data(sn_irq_info->irq_irq));
 #endif
 }
 
@@ -439,25 +412,11 @@ sn_call_force_intr_provider(struct sn_irq_info *sn_irq_info)
 	pci_provider = sn_pci_provider[sn_irq_info->irq_bridge_type];
 
 	/* Don't force an interrupt if the irq has been disabled */
-	if (!(irq_desc[sn_irq_info->irq_irq].status & IRQ_DISABLED) &&
+	if (!irqd_irq_disabled(irq_get_irq_data(sn_irq_info->irq_irq)) &&
 	    pci_provider && pci_provider->force_interrupt)
 		(*pci_provider->force_interrupt)(sn_irq_info);
 }
 
-static void force_interrupt(int irq)
-{
-	struct sn_irq_info *sn_irq_info;
-
-	if (!sn_ioif_inited)
-		return;
-
-	rcu_read_lock();
-	list_for_each_entry_rcu(sn_irq_info, sn_irq_lh[irq], list)
-		sn_call_force_intr_provider(sn_irq_info);
-
-	rcu_read_unlock();
-}
-
 /*
  * Check for lost interrupts.  If the PIC int_status reg. says that
  * an interrupt has been sent, but not handled, and the interrupt
@@ -476,7 +435,7 @@ static void sn_check_intr(int irq, struct sn_irq_info *sn_irq_info)
 	/*
 	 * Bridge types attached to TIO (anything but PIC) do not need this WAR
 	 * since they do not target Shub II interrupt registers.  If that
-	 * ever changes, this check needs to accomodate.
+	 * ever changes, this check needs to accommodate.
 	 */
 	if (sn_irq_info->irq_bridge_type != PCIIO_ASIC_TYPE_PIC)
 		return;
diff --git a/arch/ia64/sn/kernel/msi_sn.c b/arch/ia64/sn/kernel/msi_sn.c
index a5e500f02853..2b98b9e088de 100644
--- a/arch/ia64/sn/kernel/msi_sn.c
+++ b/arch/ia64/sn/kernel/msi_sn.c
@@ -144,16 +144,16 @@ int sn_setup_msi_irq(struct pci_dev *pdev, struct msi_desc *entry)
 	 */
 	msg.data = 0x100 + irq;
 
-	set_irq_msi(irq, entry);
+	irq_set_msi_desc(irq, entry);
 	write_msi_msg(irq, &msg);
-	set_irq_chip_and_handler(irq, &sn_msi_chip, handle_edge_irq);
+	irq_set_chip_and_handler(irq, &sn_msi_chip, handle_edge_irq);
 
 	return 0;
 }
 
 #ifdef CONFIG_SMP
-static int sn_set_msi_irq_affinity(unsigned int irq,
-				    const struct cpumask *cpu_mask)
+static int sn_set_msi_irq_affinity(struct irq_data *data,
+				   const struct cpumask *cpu_mask, bool force)
 {
 	struct msi_msg msg;
 	int slice;
@@ -164,7 +164,7 @@ static int sn_set_msi_irq_affinity(unsigned int irq,
 	struct sn_irq_info *sn_irq_info;
 	struct sn_irq_info *new_irq_info;
 	struct sn_pcibus_provider *provider;
-	unsigned int cpu;
+	unsigned int cpu, irq = data->irq;
 
 	cpu = cpumask_first(cpu_mask);
 	sn_irq_info = sn_msi_info[irq].sn_irq_info;
@@ -206,33 +206,33 @@ static int sn_set_msi_irq_affinity(unsigned int irq,
 	msg.address_lo = (u32)(bus_addr & 0x00000000ffffffff);
 
 	write_msi_msg(irq, &msg);
-	cpumask_copy(irq_desc[irq].affinity, cpu_mask);
+	cpumask_copy(data->affinity, cpu_mask);
 
 	return 0;
 }
 #endif /* CONFIG_SMP */
 
-static void sn_ack_msi_irq(unsigned int irq)
+static void sn_ack_msi_irq(struct irq_data *data)
 {
-	move_native_irq(irq);
+	irq_move_irq(data);
 	ia64_eoi();
 }
 
-static int sn_msi_retrigger_irq(unsigned int irq)
+static int sn_msi_retrigger_irq(struct irq_data *data)
 {
-	unsigned int vector = irq;
+	unsigned int vector = data->irq;
 	ia64_resend_irq(vector);
 
 	return 1;
 }
 
 static struct irq_chip sn_msi_chip = {
-	.name		= "PCI-MSI",
-	.irq_mask	= mask_msi_irq,
-	.irq_unmask	= unmask_msi_irq,
-	.ack		= sn_ack_msi_irq,
+	.name			= "PCI-MSI",
+	.irq_mask		= mask_msi_irq,
+	.irq_unmask		= unmask_msi_irq,
+	.irq_ack		= sn_ack_msi_irq,
 #ifdef CONFIG_SMP
-	.set_affinity	= sn_set_msi_irq_affinity,
+	.irq_set_affinity	= sn_set_msi_irq_affinity,
 #endif
-	.retrigger	= sn_msi_retrigger_irq,
+	.irq_retrigger		= sn_msi_retrigger_irq,
 };
diff --git a/arch/ia64/sn/kernel/sn2/sn_proc_fs.c b/arch/ia64/sn/kernel/sn2/sn_proc_fs.c
index c76d8dc3aea3..7aab87f48060 100644
--- a/arch/ia64/sn/kernel/sn2/sn_proc_fs.c
+++ b/arch/ia64/sn/kernel/sn2/sn_proc_fs.c
@@ -45,38 +45,6 @@ static int licenseID_open(struct inode *inode, struct file *file)
 	return single_open(file, licenseID_show, NULL);
 }
 
-/*
- * Enable forced interrupt by default.
- * When set, the sn interrupt handler writes the force interrupt register on
- * the bridge chip.  The hardware will then send an interrupt message if the
- * interrupt line is active.  This mimics a level sensitive interrupt.
- */
-extern int sn_force_interrupt_flag;
-
-static int sn_force_interrupt_show(struct seq_file *s, void *p)
-{
-	seq_printf(s, "Force interrupt is %s\n",
-		sn_force_interrupt_flag ? "enabled" : "disabled");
-	return 0;
-}
-
-static ssize_t sn_force_interrupt_write_proc(struct file *file,
-		const char __user *buffer, size_t count, loff_t *data)
-{
-	char val;
-
-	if (copy_from_user(&val, buffer, 1))
-		return -EFAULT;
-
-	sn_force_interrupt_flag = (val == '0') ? 0 : 1;
-	return count;
-}
-
-static int sn_force_interrupt_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, sn_force_interrupt_show, NULL);
-}
-
 static int coherence_id_show(struct seq_file *s, void *p)
 {
 	seq_printf(s, "%d\n", partition_coherence_id());
@@ -114,14 +82,6 @@ static const struct file_operations proc_license_id_fops = {
 	.release	= single_release,
 };
 
-static const struct file_operations proc_sn_force_intr_fops = {
-	.open		= sn_force_interrupt_open,
-	.read		= seq_read,
-	.write		= sn_force_interrupt_write_proc,
-	.llseek		= seq_lseek,
-	.release	= single_release,
-};
-
 static const struct file_operations proc_coherence_id_fops = {
 	.open		= coherence_id_open,
 	.read		= seq_read,
@@ -149,8 +109,6 @@ void register_sn_procfs(void)
 	proc_create("system_serial_number", 0444, sgi_proc_dir,
 		    &proc_system_sn_fops);
 	proc_create("licenseID", 0444, sgi_proc_dir, &proc_license_id_fops);
-	proc_create("sn_force_interrupt", 0644, sgi_proc_dir,
-		    &proc_sn_force_intr_fops);
 	proc_create("coherence_id", 0444, sgi_proc_dir,
 		    &proc_coherence_id_fops);
 	proc_create("sn_topology", 0444, sgi_proc_dir, &proc_sn_topo_fops);
diff --git a/arch/ia64/sn/pci/pcibr/pcibr_dma.c b/arch/ia64/sn/pci/pcibr/pcibr_dma.c
index c659ad5613a0..33def666a664 100644
--- a/arch/ia64/sn/pci/pcibr/pcibr_dma.c
+++ b/arch/ia64/sn/pci/pcibr/pcibr_dma.c
@@ -227,7 +227,7 @@ pcibr_dma_unmap(struct pci_dev *hwdev, dma_addr_t dma_handle, int direction)
  * after doing the read.  For PIC this routine then forces a fake interrupt
  * on another line, which is logically associated with the slot that the PIO
  * is addressed to.  It then spins while watching the memory location that
- * the interrupt is targetted to.  When the interrupt response arrives, we 
+ * the interrupt is targeted to.  When the interrupt response arrives, we 
  * are sure that the DMA has landed in memory and it is safe for the driver
  * to proceed.	For TIOCP use the Device(x) Write Request Buffer Flush 
  * Bridge register since it ensures the data has entered the coherence domain,
diff --git a/arch/ia64/xen/irq_xen.c b/arch/ia64/xen/irq_xen.c
index a3fb7cf9ae1d..108bb858acf2 100644
--- a/arch/ia64/xen/irq_xen.c
+++ b/arch/ia64/xen/irq_xen.c
@@ -138,7 +138,6 @@ static void
 __xen_register_percpu_irq(unsigned int cpu, unsigned int vec,
 			struct irqaction *action, int save)
 {
-	struct irq_desc *desc;
 	int irq = 0;
 
 	if (xen_slab_ready) {
@@ -223,8 +222,7 @@ __xen_register_percpu_irq(unsigned int cpu, unsigned int vec,
 			 * mark the interrupt for migrations and trigger it
 			 * on cpu hotplug.
 			 */
-			desc = irq_desc + irq;
-			desc->status |= IRQ_PER_CPU;
+			irq_set_status_flags(irq, IRQ_PER_CPU);
 		}
 	}
 
diff --git a/arch/m32r/Kconfig b/arch/m32r/Kconfig
index 62afe23c9a49..736b808d2291 100644
--- a/arch/m32r/Kconfig
+++ b/arch/m32r/Kconfig
@@ -8,8 +8,8 @@ config M32R
 	select HAVE_KERNEL_BZIP2
 	select HAVE_KERNEL_LZMA
 	select HAVE_GENERIC_HARDIRQS
-	select GENERIC_HARDIRQS_NO_DEPRECATED
 	select GENERIC_IRQ_PROBE
+	select GENERIC_IRQ_SHOW
 
 config SBUS
 	bool
diff --git a/arch/m32r/include/asm/m32104ut/m32104ut_pld.h b/arch/m32r/include/asm/m32104ut/m32104ut_pld.h
index 2dc89d68b6d9..1feae9709f24 100644
--- a/arch/m32r/include/asm/m32104ut/m32104ut_pld.h
+++ b/arch/m32r/include/asm/m32104ut/m32104ut_pld.h
@@ -4,7 +4,7 @@
 /*
  * include/asm-m32r/m32104ut/m32104ut_pld.h
  *
- * Definitions for Programable Logic Device(PLD) on M32104UT board.
+ * Definitions for Programmable Logic Device(PLD) on M32104UT board.
  * Based on m32700ut_pld.h
  *
  * Copyright (c) 2002	Takeo Takahashi
diff --git a/arch/m32r/include/asm/m32700ut/m32700ut_pld.h b/arch/m32r/include/asm/m32700ut/m32700ut_pld.h
index 57623beb44cb..35294670b187 100644
--- a/arch/m32r/include/asm/m32700ut/m32700ut_pld.h
+++ b/arch/m32r/include/asm/m32700ut/m32700ut_pld.h
@@ -4,7 +4,7 @@
 /*
  * include/asm-m32r/m32700ut/m32700ut_pld.h
  *
- * Definitions for Programable Logic Device(PLD) on M32700UT board.
+ * Definitions for Programmable Logic Device(PLD) on M32700UT board.
  *
  * Copyright (c) 2002	Takeo Takahashi
  *
diff --git a/arch/m32r/include/asm/opsput/opsput_pld.h b/arch/m32r/include/asm/opsput/opsput_pld.h
index 3f11ea1aac2d..6901401fe9eb 100644
--- a/arch/m32r/include/asm/opsput/opsput_pld.h
+++ b/arch/m32r/include/asm/opsput/opsput_pld.h
@@ -4,7 +4,7 @@
 /*
  * include/asm-m32r/opsput/opsput_pld.h
  *
- * Definitions for Programable Logic Device(PLD) on OPSPUT board.
+ * Definitions for Programmable Logic Device(PLD) on OPSPUT board.
  *
  * Copyright (c) 2002	Takeo Takahashi
  *
diff --git a/arch/m32r/include/asm/pgtable-2level.h b/arch/m32r/include/asm/pgtable-2level.h
index bca3475f9595..9cdaf7350ef6 100644
--- a/arch/m32r/include/asm/pgtable-2level.h
+++ b/arch/m32r/include/asm/pgtable-2level.h
@@ -44,7 +44,7 @@ static inline int pgd_present(pgd_t pgd)	{ return 1; }
 #define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
 
 /*
- * (pmds are folded into pgds so this doesnt get actually called,
+ * (pmds are folded into pgds so this doesn't get actually called,
  * but the define is needed for a generic inline function.)
  */
 #define set_pmd(pmdptr, pmdval) (*(pmdptr) = pmdval)
diff --git a/arch/m32r/kernel/irq.c b/arch/m32r/kernel/irq.c
index 76eaf3883fbd..c7272b894283 100644
--- a/arch/m32r/kernel/irq.c
+++ b/arch/m32r/kernel/irq.c
@@ -18,55 +18,10 @@
 
 #include <linux/kernel_stat.h>
 #include <linux/interrupt.h>
-#include <linux/seq_file.h>
 #include <linux/module.h>
 #include <asm/uaccess.h>
 
 /*
- * Generic, controller-independent functions:
- */
-
-int show_interrupts(struct seq_file *p, void *v)
-{
-	int i = *(loff_t *) v, j;
-	struct irqaction * action;
-	unsigned long flags;
-
-	if (i == 0) {
-		seq_printf(p, "           ");
-		for_each_online_cpu(j)
-			seq_printf(p, "CPU%d       ",j);
-		seq_putc(p, '\n');
-	}
-
-	if (i < NR_IRQS) {
-		struct irq_desc *desc = irq_to_desc(i);
-
-		raw_spin_lock_irqsave(&desc->lock, flags);
-		action = desc->action;
-		if (!action)
-			goto skip;
-		seq_printf(p, "%3d: ",i);
-#ifndef CONFIG_SMP
-		seq_printf(p, "%10u ", kstat_irqs(i));
-#else
-		for_each_online_cpu(j)
-			seq_printf(p, "%10u ", kstat_irqs_cpu(i, j));
-#endif
-		seq_printf(p, " %14s", desc->irq_data.chip->name);
-		seq_printf(p, "  %s", action->name);
-
-		for (action=action->next; action; action = action->next)
-			seq_printf(p, ", %s", action->name);
-
-		seq_putc(p, '\n');
-skip:
-		raw_spin_unlock_irqrestore(&desc->lock, flags);
-	}
-	return 0;
-}
-
-/*
  * do_IRQ handles all normal device IRQs (the special
  * SMP cross-CPU interrupts have their own specific
  * handlers).
diff --git a/arch/m32r/mm/fault.c b/arch/m32r/mm/fault.c
index b8ec002aef8e..2c9aeb453847 100644
--- a/arch/m32r/mm/fault.c
+++ b/arch/m32r/mm/fault.c
@@ -120,7 +120,7 @@ asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long error_code,
 
 	/* When running in the kernel we expect faults to occur only to
 	 * addresses in user space.  All other faults represent errors in the
-	 * kernel and should generate an OOPS.  Unfortunatly, in the case of an
+	 * kernel and should generate an OOPS.  Unfortunately, in the case of an
 	 * erroneous fault occurring in a code path which already holds mmap_sem
 	 * we will deadlock attempting to validate the fault against the
 	 * address space.  Luckily the kernel only validly references user
@@ -128,7 +128,7 @@ asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long error_code,
 	 * exceptions table.
 	 *
 	 * As the vast majority of faults will be valid we will only perform
-	 * the source reference check when there is a possibilty of a deadlock.
+	 * the source reference check when there is a possibility of a deadlock.
 	 * Attempt to lock the address space, if we cannot we then validate the
 	 * source.  If this is invalid we can skip the address space check,
 	 * thus avoiding the deadlock.
diff --git a/arch/m32r/platforms/m32104ut/setup.c b/arch/m32r/platforms/m32104ut/setup.c
index 4a693d02c1e1..34671d32cefc 100644
--- a/arch/m32r/platforms/m32104ut/setup.c
+++ b/arch/m32r/platforms/m32104ut/setup.c
@@ -76,7 +76,7 @@ void __init init_IRQ(void)
 
 #if defined(CONFIG_SMC91X)
 	/* INT#0: LAN controller on M32104UT-LAN (SMC91C111)*/
-	set_irq_chip_and_handler(M32R_IRQ_INT0, &m32104ut_irq_type,
+	irq_set_chip_and_handler(M32R_IRQ_INT0, &m32104ut_irq_type,
 				 handle_level_irq);
 	/* "H" level sense */
 	cu_data[M32R_IRQ_INT0].icucr = M32R_ICUCR_IEN | M32R_ICUCR_ISMOD11;
@@ -84,20 +84,20 @@ void __init init_IRQ(void)
 #endif  /* CONFIG_SMC91X */
 
 	/* MFT2 : system timer */
-	set_irq_chip_and_handler(M32R_IRQ_MFT2, &m32104ut_irq_type,
+	irq_set_chip_and_handler(M32R_IRQ_MFT2, &m32104ut_irq_type,
 				 handle_level_irq);
 	icu_data[M32R_IRQ_MFT2].icucr = M32R_ICUCR_IEN;
 	disable_m32104ut_irq(M32R_IRQ_MFT2);
 
 #ifdef CONFIG_SERIAL_M32R_SIO
 	/* SIO0_R : uart receive data */
-	set_irq_chip_and_handler(M32R_IRQ_SIO0_R, &m32104ut_irq_type,
+	irq_set_chip_and_handler(M32R_IRQ_SIO0_R, &m32104ut_irq_type,
 				 handle_level_irq);
 	icu_data[M32R_IRQ_SIO0_R].icucr = M32R_ICUCR_IEN;
 	disable_m32104ut_irq(M32R_IRQ_SIO0_R);
 
 	/* SIO0_S : uart send data */
-	set_irq_chip_and_handler(M32R_IRQ_SIO0_S, &m32104ut_irq_type,
+	irq_set_chip_and_handler(M32R_IRQ_SIO0_S, &m32104ut_irq_type,
 				 handle_level_irq);
 	icu_data[M32R_IRQ_SIO0_S].icucr = M32R_ICUCR_IEN;
 	disable_m32104ut_irq(M32R_IRQ_SIO0_S);
diff --git a/arch/m32r/platforms/m32700ut/setup.c b/arch/m32r/platforms/m32700ut/setup.c
index 2074bcc841eb..1053e1cb7401 100644
--- a/arch/m32r/platforms/m32700ut/setup.c
+++ b/arch/m32r/platforms/m32700ut/setup.c
@@ -259,76 +259,76 @@ void __init init_IRQ(void)
 {
 #if defined(CONFIG_SMC91X)
 	/* INT#0: LAN controller on M32700UT-LAN (SMC91C111)*/
-	set_irq_chip_and_handler(M32700UT_LAN_IRQ_LAN,
+	irq_set_chip_and_handler(M32700UT_LAN_IRQ_LAN,
 				 &m32700ut_lanpld_irq_type, handle_level_irq);
 	lanpld_icu_data[irq2lanpldirq(M32700UT_LAN_IRQ_LAN)].icucr = PLD_ICUCR_IEN|PLD_ICUCR_ISMOD02;	/* "H" edge sense */
 	disable_m32700ut_lanpld_irq(M32700UT_LAN_IRQ_LAN);
 #endif  /* CONFIG_SMC91X */
 
 	/* MFT2 : system timer */
-	set_irq_chip_and_handler(M32R_IRQ_MFT2, &m32700ut_irq_type,
+	irq_set_chip_and_handler(M32R_IRQ_MFT2, &m32700ut_irq_type,
 				 handle_level_irq);
 	icu_data[M32R_IRQ_MFT2].icucr = M32R_ICUCR_IEN;
 	disable_m32700ut_irq(M32R_IRQ_MFT2);
 
 	/* SIO0 : receive */
-	set_irq_chip_and_handler(M32R_IRQ_SIO0_R, &m32700ut_irq_type,
+	irq_set_chip_and_handler(M32R_IRQ_SIO0_R, &m32700ut_irq_type,
 				 handle_level_irq);
 	icu_data[M32R_IRQ_SIO0_R].icucr = 0;
 	disable_m32700ut_irq(M32R_IRQ_SIO0_R);
 
 	/* SIO0 : send */
-	set_irq_chip_and_handler(M32R_IRQ_SIO0_S, &m32700ut_irq_type,
+	irq_set_chip_and_handler(M32R_IRQ_SIO0_S, &m32700ut_irq_type,
 				 handle_level_irq);
 	icu_data[M32R_IRQ_SIO0_S].icucr = 0;
 	disable_m32700ut_irq(M32R_IRQ_SIO0_S);
 
 	/* SIO1 : receive */
-	set_irq_chip_and_handler(M32R_IRQ_SIO1_R, &m32700ut_irq_type,
+	irq_set_chip_and_handler(M32R_IRQ_SIO1_R, &m32700ut_irq_type,
 				 handle_level_irq);
 	icu_data[M32R_IRQ_SIO1_R].icucr = 0;
 	disable_m32700ut_irq(M32R_IRQ_SIO1_R);
 
 	/* SIO1 : send */
-	set_irq_chip_and_handler(M32R_IRQ_SIO1_S, &m32700ut_irq_type,
+	irq_set_chip_and_handler(M32R_IRQ_SIO1_S, &m32700ut_irq_type,
 				 handle_level_irq);
 	icu_data[M32R_IRQ_SIO1_S].icucr = 0;
 	disable_m32700ut_irq(M32R_IRQ_SIO1_S);
 
 	/* DMA1 : */
-	set_irq_chip_and_handler(M32R_IRQ_DMA1, &m32700ut_irq_type,
+	irq_set_chip_and_handler(M32R_IRQ_DMA1, &m32700ut_irq_type,
 				 handle_level_irq);
 	icu_data[M32R_IRQ_DMA1].icucr = 0;
 	disable_m32700ut_irq(M32R_IRQ_DMA1);
 
 #ifdef CONFIG_SERIAL_M32R_PLDSIO
 	/* INT#1: SIO0 Receive on PLD */
-	set_irq_chip_and_handler(PLD_IRQ_SIO0_RCV, &m32700ut_pld_irq_type,
+	irq_set_chip_and_handler(PLD_IRQ_SIO0_RCV, &m32700ut_pld_irq_type,
 				 handle_level_irq);
 	pld_icu_data[irq2pldirq(PLD_IRQ_SIO0_RCV)].icucr = PLD_ICUCR_IEN|PLD_ICUCR_ISMOD03;
 	disable_m32700ut_pld_irq(PLD_IRQ_SIO0_RCV);
 
 	/* INT#1: SIO0 Send on PLD */
-	set_irq_chip_and_handler(PLD_IRQ_SIO0_SND, &m32700ut_pld_irq_type,
+	irq_set_chip_and_handler(PLD_IRQ_SIO0_SND, &m32700ut_pld_irq_type,
 				 handle_level_irq);
 	pld_icu_data[irq2pldirq(PLD_IRQ_SIO0_SND)].icucr = PLD_ICUCR_IEN|PLD_ICUCR_ISMOD03;
 	disable_m32700ut_pld_irq(PLD_IRQ_SIO0_SND);
 #endif  /* CONFIG_SERIAL_M32R_PLDSIO */
 
 	/* INT#1: CFC IREQ on PLD */
-	set_irq_chip_and_handler(PLD_IRQ_CFIREQ, &m32700ut_pld_irq_type,
+	irq_set_chip_and_handler(PLD_IRQ_CFIREQ, &m32700ut_pld_irq_type,
 				 handle_level_irq);
 	pld_icu_data[irq2pldirq(PLD_IRQ_CFIREQ)].icucr = PLD_ICUCR_IEN|PLD_ICUCR_ISMOD01;	/* 'L' level sense */
 	disable_m32700ut_pld_irq(PLD_IRQ_CFIREQ);
 
 	/* INT#1: CFC Insert on PLD */
-	set_irq_chip_and_handler(PLD_IRQ_CFC_INSERT, &m32700ut_pld_irq_type,
+	irq_set_chip_and_handler(PLD_IRQ_CFC_INSERT, &m32700ut_pld_irq_type,
 				 handle_level_irq);
 	pld_icu_data[irq2pldirq(PLD_IRQ_CFC_INSERT)].icucr = PLD_ICUCR_IEN|PLD_ICUCR_ISMOD00;	/* 'L' edge sense */
 	disable_m32700ut_pld_irq(PLD_IRQ_CFC_INSERT);
 
 	/* INT#1: CFC Eject on PLD */
-	set_irq_chip_and_handler(PLD_IRQ_CFC_EJECT, &m32700ut_pld_irq_type,
+	irq_set_chip_and_handler(PLD_IRQ_CFC_EJECT, &m32700ut_pld_irq_type,
 				 handle_level_irq);
 	pld_icu_data[irq2pldirq(PLD_IRQ_CFC_EJECT)].icucr = PLD_ICUCR_IEN|PLD_ICUCR_ISMOD02;	/* 'H' edge sense */
 	disable_m32700ut_pld_irq(PLD_IRQ_CFC_EJECT);
@@ -349,7 +349,7 @@ void __init init_IRQ(void)
 
 #if defined(CONFIG_USB)
 	outw(USBCR_OTGS, USBCR); 	/* USBCR: non-OTG */
-	set_irq_chip_and_handler(M32700UT_LCD_IRQ_USB_INT1,
+	irq_set_chip_and_handler(M32700UT_LCD_IRQ_USB_INT1,
 				 &m32700ut_lcdpld_irq_type, handle_level_irq);
 
 	lcdpld_icu_data[irq2lcdpldirq(M32700UT_LCD_IRQ_USB_INT1)].icucr = PLD_ICUCR_IEN|PLD_ICUCR_ISMOD01;	/* "L" level sense */
@@ -366,7 +366,7 @@ void __init init_IRQ(void)
 	/*
 	 * INT3# is used for AR
 	 */
-	set_irq_chip_and_handler(M32R_IRQ_INT3, &m32700ut_irq_type,
+	irq_set_chip_and_handler(M32R_IRQ_INT3, &m32700ut_irq_type,
 				 handle_level_irq);
 	icu_data[M32R_IRQ_INT3].icucr = M32R_ICUCR_IEN|M32R_ICUCR_ISMOD10;
 	disable_m32700ut_irq(M32R_IRQ_INT3);
diff --git a/arch/m32r/platforms/mappi/setup.c b/arch/m32r/platforms/mappi/setup.c
index cdd8c4574027..35130ac3f8d1 100644
--- a/arch/m32r/platforms/mappi/setup.c
+++ b/arch/m32r/platforms/mappi/setup.c
@@ -75,39 +75,39 @@ void __init init_IRQ(void)
 
 #ifdef CONFIG_NE2000
 	/* INT0 : LAN controller (RTL8019AS) */
-	set_irq_chip_and_handler(M32R_IRQ_INT0, &mappi_irq_type,
+	irq_set_chip_and_handler(M32R_IRQ_INT0, &mappi_irq_type,
 				 handle_level_irq);
 	icu_data[M32R_IRQ_INT0].icucr = M32R_ICUCR_IEN|M32R_ICUCR_ISMOD11;
 	disable_mappi_irq(M32R_IRQ_INT0);
 #endif /* CONFIG_M32R_NE2000 */
 
 	/* MFT2 : system timer */
-	set_irq_chip_and_handler(M32R_IRQ_MFT2, &mappi_irq_type,
+	irq_set_chip_and_handler(M32R_IRQ_MFT2, &mappi_irq_type,
 				 handle_level_irq);
 	icu_data[M32R_IRQ_MFT2].icucr = M32R_ICUCR_IEN;
 	disable_mappi_irq(M32R_IRQ_MFT2);
 
 #ifdef CONFIG_SERIAL_M32R_SIO
 	/* SIO0_R : uart receive data */
-	set_irq_chip_and_handler(M32R_IRQ_SIO0_R, &mappi_irq_type,
+	irq_set_chip_and_handler(M32R_IRQ_SIO0_R, &mappi_irq_type,
 				 handle_level_irq);
 	icu_data[M32R_IRQ_SIO0_R].icucr = 0;
 	disable_mappi_irq(M32R_IRQ_SIO0_R);
 
 	/* SIO0_S : uart send data */
-	set_irq_chip_and_handler(M32R_IRQ_SIO0_S, &mappi_irq_type,
+	irq_set_chip_and_handler(M32R_IRQ_SIO0_S, &mappi_irq_type,
 				 handle_level_irq);
 	icu_data[M32R_IRQ_SIO0_S].icucr = 0;
 	disable_mappi_irq(M32R_IRQ_SIO0_S);
 
 	/* SIO1_R : uart receive data */
-	set_irq_chip_and_handler(M32R_IRQ_SIO1_R, &mappi_irq_type,
+	irq_set_chip_and_handler(M32R_IRQ_SIO1_R, &mappi_irq_type,
 				 handle_level_irq);
 	icu_data[M32R_IRQ_SIO1_R].icucr = 0;
 	disable_mappi_irq(M32R_IRQ_SIO1_R);
 
 	/* SIO1_S : uart send data */
-	set_irq_chip_and_handler(M32R_IRQ_SIO1_S, &mappi_irq_type,
+	irq_set_chip_and_handler(M32R_IRQ_SIO1_S, &mappi_irq_type,
 				 handle_level_irq);
 	icu_data[M32R_IRQ_SIO1_S].icucr = 0;
 	disable_mappi_irq(M32R_IRQ_SIO1_S);
@@ -115,13 +115,13 @@ void __init init_IRQ(void)
 
 #if defined(CONFIG_M32R_PCC)
 	/* INT1 : pccard0 interrupt */
-	set_irq_chip_and_handler(M32R_IRQ_INT1, &mappi_irq_type,
+	irq_set_chip_and_handler(M32R_IRQ_INT1, &mappi_irq_type,
 				 handle_level_irq);
 	icu_data[M32R_IRQ_INT1].icucr = M32R_ICUCR_IEN | M32R_ICUCR_ISMOD00;
 	disable_mappi_irq(M32R_IRQ_INT1);
 
 	/* INT2 : pccard1 interrupt */
-	set_irq_chip_and_handler(M32R_IRQ_INT2, &mappi_irq_type,
+	irq_set_chip_and_handler(M32R_IRQ_INT2, &mappi_irq_type,
 				 handle_level_irq);
 	icu_data[M32R_IRQ_INT2].icucr = M32R_ICUCR_IEN | M32R_ICUCR_ISMOD00;
 	disable_mappi_irq(M32R_IRQ_INT2);
diff --git a/arch/m32r/platforms/mappi2/setup.c b/arch/m32r/platforms/mappi2/setup.c
index 9117c30ea365..f3ed6b60a5f8 100644
--- a/arch/m32r/platforms/mappi2/setup.c
+++ b/arch/m32r/platforms/mappi2/setup.c
@@ -76,38 +76,38 @@ void __init init_IRQ(void)
 {
 #if defined(CONFIG_SMC91X)
 	/* INT0 : LAN controller (SMC91111) */
-	set_irq_chip_and_handler(M32R_IRQ_INT0, &mappi2_irq_type,
+	irq_set_chip_and_handler(M32R_IRQ_INT0, &mappi2_irq_type,
 				 handle_level_irq);
 	icu_data[M32R_IRQ_INT0].icucr = M32R_ICUCR_IEN|M32R_ICUCR_ISMOD10;
 	disable_mappi2_irq(M32R_IRQ_INT0);
 #endif  /* CONFIG_SMC91X */
 
 	/* MFT2 : system timer */
-	set_irq_chip_and_handler(M32R_IRQ_MFT2, &mappi2_irq_type,
+	irq_set_chip_and_handler(M32R_IRQ_MFT2, &mappi2_irq_type,
 				 handle_level_irq);
 	icu_data[M32R_IRQ_MFT2].icucr = M32R_ICUCR_IEN;
 	disable_mappi2_irq(M32R_IRQ_MFT2);
 
 #ifdef CONFIG_SERIAL_M32R_SIO
 	/* SIO0_R : uart receive data */
-	set_irq_chip_and_handler(M32R_IRQ_SIO0_R, &mappi2_irq_type,
+	irq_set_chip_and_handler(M32R_IRQ_SIO0_R, &mappi2_irq_type,
 				 handle_level_irq);
 	icu_data[M32R_IRQ_SIO0_R].icucr = 0;
 	disable_mappi2_irq(M32R_IRQ_SIO0_R);
 
 	/* SIO0_S : uart send data */
-	set_irq_chip_and_handler(M32R_IRQ_SIO0_S, &mappi2_irq_type,
+	irq_set_chip_and_handler(M32R_IRQ_SIO0_S, &mappi2_irq_type,
 				 handle_level_irq);
 	icu_data[M32R_IRQ_SIO0_S].icucr = 0;
 	disable_mappi2_irq(M32R_IRQ_SIO0_S);
 	/* SIO1_R : uart receive data */
-	set_irq_chip_and_handler(M32R_IRQ_SIO1_R, &mappi2_irq_type,
+	irq_set_chip_and_handler(M32R_IRQ_SIO1_R, &mappi2_irq_type,
 				 handle_level_irq);
 	icu_data[M32R_IRQ_SIO1_R].icucr = 0;
 	disable_mappi2_irq(M32R_IRQ_SIO1_R);
 
 	/* SIO1_S : uart send data */
-	set_irq_chip_and_handler(M32R_IRQ_SIO1_S, &mappi2_irq_type,
+	irq_set_chip_and_handler(M32R_IRQ_SIO1_S, &mappi2_irq_type,
 				 handle_level_irq);
 	icu_data[M32R_IRQ_SIO1_S].icucr = 0;
 	disable_mappi2_irq(M32R_IRQ_SIO1_S);
@@ -115,27 +115,27 @@ void __init init_IRQ(void)
 
 #if defined(CONFIG_USB)
 	/* INT1 : USB Host controller interrupt */
-	set_irq_chip_and_handler(M32R_IRQ_INT1, &mappi2_irq_type,
+	irq_set_chip_and_handler(M32R_IRQ_INT1, &mappi2_irq_type,
 				 handle_level_irq);
 	icu_data[M32R_IRQ_INT1].icucr = M32R_ICUCR_ISMOD01;
 	disable_mappi2_irq(M32R_IRQ_INT1);
 #endif /* CONFIG_USB */
 
 	/* ICUCR40: CFC IREQ */
-	set_irq_chip_and_handler(PLD_IRQ_CFIREQ, &mappi2_irq_type,
+	irq_set_chip_and_handler(PLD_IRQ_CFIREQ, &mappi2_irq_type,
 				 handle_level_irq);
 	icu_data[PLD_IRQ_CFIREQ].icucr = M32R_ICUCR_IEN|M32R_ICUCR_ISMOD01;
 	disable_mappi2_irq(PLD_IRQ_CFIREQ);
 
 #if defined(CONFIG_M32R_CFC)
 	/* ICUCR41: CFC Insert */
-	set_irq_chip_and_handler(PLD_IRQ_CFC_INSERT, &mappi2_irq_type,
+	irq_set_chip_and_handler(PLD_IRQ_CFC_INSERT, &mappi2_irq_type,
 				 handle_level_irq);
 	icu_data[PLD_IRQ_CFC_INSERT].icucr = M32R_ICUCR_IEN|M32R_ICUCR_ISMOD00;
 	disable_mappi2_irq(PLD_IRQ_CFC_INSERT);
 
 	/* ICUCR42: CFC Eject */
-	set_irq_chip_and_handler(PLD_IRQ_CFC_EJECT, &mappi2_irq_type,
+	irq_set_chip_and_handler(PLD_IRQ_CFC_EJECT, &mappi2_irq_type,
 				 handle_level_irq);
 	icu_data[PLD_IRQ_CFC_EJECT].icucr = M32R_ICUCR_IEN|M32R_ICUCR_ISMOD10;
 	disable_mappi2_irq(PLD_IRQ_CFC_EJECT);
diff --git a/arch/m32r/platforms/mappi3/setup.c b/arch/m32r/platforms/mappi3/setup.c
index b44f5ded2bbe..2408e356ad10 100644
--- a/arch/m32r/platforms/mappi3/setup.c
+++ b/arch/m32r/platforms/mappi3/setup.c
@@ -75,38 +75,38 @@ void __init init_IRQ(void)
 {
 #if defined(CONFIG_SMC91X)
 	/* INT0 : LAN controller (SMC91111) */
-	set_irq_chip_and_handler(M32R_IRQ_INT0, &mappi3_irq_type,
+	irq_set_chip_and_handler(M32R_IRQ_INT0, &mappi3_irq_type,
 				 handle_level_irq);
 	icu_data[M32R_IRQ_INT0].icucr = M32R_ICUCR_IEN|M32R_ICUCR_ISMOD10;
 	disable_mappi3_irq(M32R_IRQ_INT0);
 #endif  /* CONFIG_SMC91X */
 
 	/* MFT2 : system timer */
-	set_irq_chip_and_handler(M32R_IRQ_MFT2, &mappi3_irq_type,
+	irq_set_chip_and_handler(M32R_IRQ_MFT2, &mappi3_irq_type,
 				 handle_level_irq);
 	icu_data[M32R_IRQ_MFT2].icucr = M32R_ICUCR_IEN;
 	disable_mappi3_irq(M32R_IRQ_MFT2);
 
 #ifdef CONFIG_SERIAL_M32R_SIO
 	/* SIO0_R : uart receive data */
-	set_irq_chip_and_handler(M32R_IRQ_SIO0_R, &mappi3_irq_type,
+	irq_set_chip_and_handler(M32R_IRQ_SIO0_R, &mappi3_irq_type,
 				 handle_level_irq);
 	icu_data[M32R_IRQ_SIO0_R].icucr = 0;
 	disable_mappi3_irq(M32R_IRQ_SIO0_R);
 
 	/* SIO0_S : uart send data */
-	set_irq_chip_and_handler(M32R_IRQ_SIO0_S, &mappi3_irq_type,
+	irq_set_chip_and_handler(M32R_IRQ_SIO0_S, &mappi3_irq_type,
 				 handle_level_irq);
 	icu_data[M32R_IRQ_SIO0_S].icucr = 0;
 	disable_mappi3_irq(M32R_IRQ_SIO0_S);
 	/* SIO1_R : uart receive data */
-	set_irq_chip_and_handler(M32R_IRQ_SIO1_R, &mappi3_irq_type,
+	irq_set_chip_and_handler(M32R_IRQ_SIO1_R, &mappi3_irq_type,
 				 handle_level_irq);
 	icu_data[M32R_IRQ_SIO1_R].icucr = 0;
 	disable_mappi3_irq(M32R_IRQ_SIO1_R);
 
 	/* SIO1_S : uart send data */
-	set_irq_chip_and_handler(M32R_IRQ_SIO1_S, &mappi3_irq_type,
+	irq_set_chip_and_handler(M32R_IRQ_SIO1_S, &mappi3_irq_type,
 				 handle_level_irq);
 	icu_data[M32R_IRQ_SIO1_S].icucr = 0;
 	disable_mappi3_irq(M32R_IRQ_SIO1_S);
@@ -114,21 +114,21 @@ void __init init_IRQ(void)
 
 #if defined(CONFIG_USB)
 	/* INT1 : USB Host controller interrupt */
-	set_irq_chip_and_handler(M32R_IRQ_INT1, &mappi3_irq_type,
+	irq_set_chip_and_handler(M32R_IRQ_INT1, &mappi3_irq_type,
 				 handle_level_irq);
 	icu_data[M32R_IRQ_INT1].icucr = M32R_ICUCR_ISMOD01;
 	disable_mappi3_irq(M32R_IRQ_INT1);
 #endif /* CONFIG_USB */
 
 	/* CFC IREQ */
-	set_irq_chip_and_handler(PLD_IRQ_CFIREQ, &mappi3_irq_type,
+	irq_set_chip_and_handler(PLD_IRQ_CFIREQ, &mappi3_irq_type,
 				 handle_level_irq);
 	icu_data[PLD_IRQ_CFIREQ].icucr = M32R_ICUCR_IEN|M32R_ICUCR_ISMOD01;
 	disable_mappi3_irq(PLD_IRQ_CFIREQ);
 
 #if defined(CONFIG_M32R_CFC)
 	/* ICUCR41: CFC Insert & eject */
-	set_irq_chip_and_handler(PLD_IRQ_CFC_INSERT, &mappi3_irq_type,
+	irq_set_chip_and_handler(PLD_IRQ_CFC_INSERT, &mappi3_irq_type,
 				 handle_level_irq);
 	icu_data[PLD_IRQ_CFC_INSERT].icucr = M32R_ICUCR_IEN|M32R_ICUCR_ISMOD00;
 	disable_mappi3_irq(PLD_IRQ_CFC_INSERT);
@@ -136,7 +136,7 @@ void __init init_IRQ(void)
 #endif /* CONFIG_M32R_CFC */
 
 	/* IDE IREQ */
-	set_irq_chip_and_handler(PLD_IRQ_IDEIREQ, &mappi3_irq_type,
+	irq_set_chip_and_handler(PLD_IRQ_IDEIREQ, &mappi3_irq_type,
 				 handle_level_irq);
 	icu_data[PLD_IRQ_IDEIREQ].icucr = M32R_ICUCR_IEN|M32R_ICUCR_ISMOD10;
 	disable_mappi3_irq(PLD_IRQ_IDEIREQ);
diff --git a/arch/m32r/platforms/oaks32r/setup.c b/arch/m32r/platforms/oaks32r/setup.c
index 19a02db7b818..83b46b067a17 100644
--- a/arch/m32r/platforms/oaks32r/setup.c
+++ b/arch/m32r/platforms/oaks32r/setup.c
@@ -74,39 +74,39 @@ void __init init_IRQ(void)
 
 #ifdef CONFIG_NE2000
 	/* INT3 : LAN controller (RTL8019AS) */
-	set_irq_chip_and_handler(M32R_IRQ_INT3, &oaks32r_irq_type,
+	irq_set_chip_and_handler(M32R_IRQ_INT3, &oaks32r_irq_type,
 				 handle_level_irq);
 	icu_data[M32R_IRQ_INT3].icucr = M32R_ICUCR_IEN|M32R_ICUCR_ISMOD10;
 	disable_oaks32r_irq(M32R_IRQ_INT3);
 #endif /* CONFIG_M32R_NE2000 */
 
 	/* MFT2 : system timer */
-	set_irq_chip_and_handler(M32R_IRQ_MFT2, &oaks32r_irq_type,
+	irq_set_chip_and_handler(M32R_IRQ_MFT2, &oaks32r_irq_type,
 				 handle_level_irq);
 	icu_data[M32R_IRQ_MFT2].icucr = M32R_ICUCR_IEN;
 	disable_oaks32r_irq(M32R_IRQ_MFT2);
 
 #ifdef CONFIG_SERIAL_M32R_SIO
 	/* SIO0_R : uart receive data */
-	set_irq_chip_and_handler(M32R_IRQ_SIO0_R, &oaks32r_irq_type,
+	irq_set_chip_and_handler(M32R_IRQ_SIO0_R, &oaks32r_irq_type,
 				 handle_level_irq);
 	icu_data[M32R_IRQ_SIO0_R].icucr = 0;
 	disable_oaks32r_irq(M32R_IRQ_SIO0_R);
 
 	/* SIO0_S : uart send data */
-	set_irq_chip_and_handler(M32R_IRQ_SIO0_S, &oaks32r_irq_type,
+	irq_set_chip_and_handler(M32R_IRQ_SIO0_S, &oaks32r_irq_type,
 				 handle_level_irq);
 	icu_data[M32R_IRQ_SIO0_S].icucr = 0;
 	disable_oaks32r_irq(M32R_IRQ_SIO0_S);
 
 	/* SIO1_R : uart receive data */
-	set_irq_chip_and_handler(M32R_IRQ_SIO1_R, &oaks32r_irq_type,
+	irq_set_chip_and_handler(M32R_IRQ_SIO1_R, &oaks32r_irq_type,
 				 handle_level_irq);
 	icu_data[M32R_IRQ_SIO1_R].icucr = 0;
 	disable_oaks32r_irq(M32R_IRQ_SIO1_R);
 
 	/* SIO1_S : uart send data */
-	set_irq_chip_and_handler(M32R_IRQ_SIO1_S, &oaks32r_irq_type,
+	irq_set_chip_and_handler(M32R_IRQ_SIO1_S, &oaks32r_irq_type,
 				 handle_level_irq);
 	icu_data[M32R_IRQ_SIO1_S].icucr = 0;
 	disable_oaks32r_irq(M32R_IRQ_SIO1_S);
diff --git a/arch/m32r/platforms/opsput/setup.c b/arch/m32r/platforms/opsput/setup.c
index 12731547e8bf..32660705f5fd 100644
--- a/arch/m32r/platforms/opsput/setup.c
+++ b/arch/m32r/platforms/opsput/setup.c
@@ -259,76 +259,76 @@ void __init init_IRQ(void)
 {
 #if defined(CONFIG_SMC91X)
 	/* INT#0: LAN controller on OPSPUT-LAN (SMC91C111)*/
-	set_irq_chip_and_handler(OPSPUT_LAN_IRQ_LAN, &opsput_lanpld_irq_type,
+	irq_set_chip_and_handler(OPSPUT_LAN_IRQ_LAN, &opsput_lanpld_irq_type,
 				 handle_level_irq);
 	lanpld_icu_data[irq2lanpldirq(OPSPUT_LAN_IRQ_LAN)].icucr = PLD_ICUCR_IEN|PLD_ICUCR_ISMOD02;	/* "H" edge sense */
 	disable_opsput_lanpld_irq(OPSPUT_LAN_IRQ_LAN);
 #endif  /* CONFIG_SMC91X */
 
 	/* MFT2 : system timer */
-	set_irq_chip_and_handler(M32R_IRQ_MFT2, &opsput_irq_type,
+	irq_set_chip_and_handler(M32R_IRQ_MFT2, &opsput_irq_type,
 				 handle_level_irq);
 	icu_data[M32R_IRQ_MFT2].icucr = M32R_ICUCR_IEN;
 	disable_opsput_irq(M32R_IRQ_MFT2);
 
 	/* SIO0 : receive */
-	set_irq_chip_and_handler(M32R_IRQ_SIO0_R, &opsput_irq_type,
+	irq_set_chip_and_handler(M32R_IRQ_SIO0_R, &opsput_irq_type,
 				 handle_level_irq);
 	icu_data[M32R_IRQ_SIO0_R].icucr = 0;
 	disable_opsput_irq(M32R_IRQ_SIO0_R);
 
 	/* SIO0 : send */
-	set_irq_chip_and_handler(M32R_IRQ_SIO0_S, &opsput_irq_type,
+	irq_set_chip_and_handler(M32R_IRQ_SIO0_S, &opsput_irq_type,
 				 handle_level_irq);
 	icu_data[M32R_IRQ_SIO0_S].icucr = 0;
 	disable_opsput_irq(M32R_IRQ_SIO0_S);
 
 	/* SIO1 : receive */
-	set_irq_chip_and_handler(M32R_IRQ_SIO1_R, &opsput_irq_type,
+	irq_set_chip_and_handler(M32R_IRQ_SIO1_R, &opsput_irq_type,
 				 handle_level_irq);
 	icu_data[M32R_IRQ_SIO1_R].icucr = 0;
 	disable_opsput_irq(M32R_IRQ_SIO1_R);
 
 	/* SIO1 : send */
-	set_irq_chip_and_handler(M32R_IRQ_SIO1_S, &opsput_irq_type,
+	irq_set_chip_and_handler(M32R_IRQ_SIO1_S, &opsput_irq_type,
 				 handle_level_irq);
 	icu_data[M32R_IRQ_SIO1_S].icucr = 0;
 	disable_opsput_irq(M32R_IRQ_SIO1_S);
 
 	/* DMA1 : */
-	set_irq_chip_and_handler(M32R_IRQ_DMA1, &opsput_irq_type,
+	irq_set_chip_and_handler(M32R_IRQ_DMA1, &opsput_irq_type,
 				 handle_level_irq);
 	icu_data[M32R_IRQ_DMA1].icucr = 0;
 	disable_opsput_irq(M32R_IRQ_DMA1);
 
 #ifdef CONFIG_SERIAL_M32R_PLDSIO
 	/* INT#1: SIO0 Receive on PLD */
-	set_irq_chip_and_handler(PLD_IRQ_SIO0_RCV, &opsput_pld_irq_type,
+	irq_set_chip_and_handler(PLD_IRQ_SIO0_RCV, &opsput_pld_irq_type,
 				 handle_level_irq);
 	pld_icu_data[irq2pldirq(PLD_IRQ_SIO0_RCV)].icucr = PLD_ICUCR_IEN|PLD_ICUCR_ISMOD03;
 	disable_opsput_pld_irq(PLD_IRQ_SIO0_RCV);
 
 	/* INT#1: SIO0 Send on PLD */
-	set_irq_chip_and_handler(PLD_IRQ_SIO0_SND, &opsput_pld_irq_type,
+	irq_set_chip_and_handler(PLD_IRQ_SIO0_SND, &opsput_pld_irq_type,
 				 handle_level_irq);
 	pld_icu_data[irq2pldirq(PLD_IRQ_SIO0_SND)].icucr = PLD_ICUCR_IEN|PLD_ICUCR_ISMOD03;
 	disable_opsput_pld_irq(PLD_IRQ_SIO0_SND);
 #endif  /* CONFIG_SERIAL_M32R_PLDSIO */
 
 	/* INT#1: CFC IREQ on PLD */
-	set_irq_chip_and_handler(PLD_IRQ_CFIREQ, &opsput_pld_irq_type,
+	irq_set_chip_and_handler(PLD_IRQ_CFIREQ, &opsput_pld_irq_type,
 				 handle_level_irq);
 	pld_icu_data[irq2pldirq(PLD_IRQ_CFIREQ)].icucr = PLD_ICUCR_IEN|PLD_ICUCR_ISMOD01;	/* 'L' level sense */
 	disable_opsput_pld_irq(PLD_IRQ_CFIREQ);
 
 	/* INT#1: CFC Insert on PLD */
-	set_irq_chip_and_handler(PLD_IRQ_CFC_INSERT, &opsput_pld_irq_type,
+	irq_set_chip_and_handler(PLD_IRQ_CFC_INSERT, &opsput_pld_irq_type,
 				 handle_level_irq);
 	pld_icu_data[irq2pldirq(PLD_IRQ_CFC_INSERT)].icucr = PLD_ICUCR_IEN|PLD_ICUCR_ISMOD00;	/* 'L' edge sense */
 	disable_opsput_pld_irq(PLD_IRQ_CFC_INSERT);
 
 	/* INT#1: CFC Eject on PLD */
-	set_irq_chip_and_handler(PLD_IRQ_CFC_EJECT, &opsput_pld_irq_type,
+	irq_set_chip_and_handler(PLD_IRQ_CFC_EJECT, &opsput_pld_irq_type,
 				 handle_level_irq);
 	pld_icu_data[irq2pldirq(PLD_IRQ_CFC_EJECT)].icucr = PLD_ICUCR_IEN|PLD_ICUCR_ISMOD02;	/* 'H' edge sense */
 	disable_opsput_pld_irq(PLD_IRQ_CFC_EJECT);
@@ -349,7 +349,7 @@ void __init init_IRQ(void)
 
 #if defined(CONFIG_USB)
 	outw(USBCR_OTGS, USBCR);	/* USBCR: non-OTG */
-	set_irq_chip_and_handler(OPSPUT_LCD_IRQ_USB_INT1,
+	irq_set_chip_and_handler(OPSPUT_LCD_IRQ_USB_INT1,
 				 &opsput_lcdpld_irq_type, handle_level_irq);
 	lcdpld_icu_data[irq2lcdpldirq(OPSPUT_LCD_IRQ_USB_INT1)].icucr = PLD_ICUCR_IEN|PLD_ICUCR_ISMOD01;	/* "L" level sense */
 	disable_opsput_lcdpld_irq(OPSPUT_LCD_IRQ_USB_INT1);
@@ -365,7 +365,7 @@ void __init init_IRQ(void)
 	/*
 	 * INT3# is used for AR
 	 */
-	set_irq_chip_and_handler(M32R_IRQ_INT3, &opsput_irq_type,
+	irq_set_chip_and_handler(M32R_IRQ_INT3, &opsput_irq_type,
 				 handle_level_irq);
 	icu_data[M32R_IRQ_INT3].icucr = M32R_ICUCR_IEN|M32R_ICUCR_ISMOD10;
 	disable_opsput_irq(M32R_IRQ_INT3);
diff --git a/arch/m32r/platforms/usrv/setup.c b/arch/m32r/platforms/usrv/setup.c
index f3cff26d6e74..0c7a1e8c77b0 100644
--- a/arch/m32r/platforms/usrv/setup.c
+++ b/arch/m32r/platforms/usrv/setup.c
@@ -138,32 +138,32 @@ void __init init_IRQ(void)
 		once++;
 
 	/* MFT2 : system timer */
-	set_irq_chip_and_handler(M32R_IRQ_MFT2, &mappi_irq_type,
+	irq_set_chip_and_handler(M32R_IRQ_MFT2, &mappi_irq_type,
 				 handle_level_irq);
 	icu_data[M32R_IRQ_MFT2].icucr = M32R_ICUCR_IEN;
 	disable_mappi_irq(M32R_IRQ_MFT2);
 
 #if defined(CONFIG_SERIAL_M32R_SIO)
 	/* SIO0_R : uart receive data */
-	set_irq_chip_and_handler(M32R_IRQ_SIO0_R, &mappi_irq_type,
+	irq_set_chip_and_handler(M32R_IRQ_SIO0_R, &mappi_irq_type,
 				 handle_level_irq);
 	icu_data[M32R_IRQ_SIO0_R].icucr = 0;
 	disable_mappi_irq(M32R_IRQ_SIO0_R);
 
 	/* SIO0_S : uart send data */
-	set_irq_chip_and_handler(M32R_IRQ_SIO0_S, &mappi_irq_type,
+	irq_set_chip_and_handler(M32R_IRQ_SIO0_S, &mappi_irq_type,
 				 handle_level_irq);
 	icu_data[M32R_IRQ_SIO0_S].icucr = 0;
 	disable_mappi_irq(M32R_IRQ_SIO0_S);
 
 	/* SIO1_R : uart receive data */
-	set_irq_chip_and_handler(M32R_IRQ_SIO1_R, &mappi_irq_type,
+	irq_set_chip_and_handler(M32R_IRQ_SIO1_R, &mappi_irq_type,
 				 handle_level_irq);
 	icu_data[M32R_IRQ_SIO1_R].icucr = 0;
 	disable_mappi_irq(M32R_IRQ_SIO1_R);
 
 	/* SIO1_S : uart send data */
-	set_irq_chip_and_handler(M32R_IRQ_SIO1_S, &mappi_irq_type,
+	irq_set_chip_and_handler(M32R_IRQ_SIO1_S, &mappi_irq_type,
 				 handle_level_irq);
 	icu_data[M32R_IRQ_SIO1_S].icucr = 0;
 	disable_mappi_irq(M32R_IRQ_SIO1_S);
@@ -171,7 +171,7 @@ void __init init_IRQ(void)
 
 	/* INT#67-#71: CFC#0 IREQ on PLD */
 	for (i = 0 ; i < CONFIG_M32R_CFC_NUM ; i++ ) {
-		set_irq_chip_and_handler(PLD_IRQ_CF0 + i,
+		irq_set_chip_and_handler(PLD_IRQ_CF0 + i,
 					 &m32700ut_pld_irq_type,
 					 handle_level_irq);
 		pld_icu_data[irq2pldirq(PLD_IRQ_CF0 + i)].icucr
@@ -181,14 +181,14 @@ void __init init_IRQ(void)
 
 #if defined(CONFIG_SERIAL_8250) || defined(CONFIG_SERIAL_8250_MODULE)
 	/* INT#76: 16552D#0 IREQ on PLD */
-	set_irq_chip_and_handler(PLD_IRQ_UART0, &m32700ut_pld_irq_type,
+	irq_set_chip_and_handler(PLD_IRQ_UART0, &m32700ut_pld_irq_type,
 				 handle_level_irq);
 	pld_icu_data[irq2pldirq(PLD_IRQ_UART0)].icucr
 		= PLD_ICUCR_ISMOD03;	/* 'H' level sense */
 	disable_m32700ut_pld_irq(PLD_IRQ_UART0);
 
 	/* INT#77: 16552D#1 IREQ on PLD */
-	set_irq_chip_and_handler(PLD_IRQ_UART1, &m32700ut_pld_irq_type,
+	irq_set_chip_and_handler(PLD_IRQ_UART1, &m32700ut_pld_irq_type,
 				 handle_level_irq);
 	pld_icu_data[irq2pldirq(PLD_IRQ_UART1)].icucr
 		= PLD_ICUCR_ISMOD03;	/* 'H' level sense */
@@ -197,7 +197,7 @@ void __init init_IRQ(void)
 
 #if defined(CONFIG_IDC_AK4524) || defined(CONFIG_IDC_AK4524_MODULE)
 	/* INT#80: AK4524 IREQ on PLD */
-	set_irq_chip_and_handler(PLD_IRQ_SNDINT, &m32700ut_pld_irq_type,
+	irq_set_chip_and_handler(PLD_IRQ_SNDINT, &m32700ut_pld_irq_type,
 				 handle_level_irq);
 	pld_icu_data[irq2pldirq(PLD_IRQ_SNDINT)].icucr
 		= PLD_ICUCR_ISMOD01;	/* 'L' level sense */
diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig
index 525174d41679..75531da02a40 100644
--- a/arch/m68k/Kconfig
+++ b/arch/m68k/Kconfig
@@ -1,13 +1,10 @@
 config M68K
 	bool
 	default y
-	select HAVE_AOUT
 	select HAVE_IDE
-	select GENERIC_ATOMIC64
-
-config MMU
-	bool
-	default y
+	select HAVE_AOUT if MMU
+	select GENERIC_ATOMIC64 if MMU
+	select HAVE_GENERIC_HARDIRQS if !MMU
 
 config RWSEM_GENERIC_SPINLOCK
 	bool
@@ -34,457 +31,67 @@ config TIME_LOW_RES
 	bool
 	default y
 
-config GENERIC_IOMAP
-	bool
-	default y
-
-config ARCH_MAY_HAVE_PC_FDC
-	bool
-	depends on BROKEN && (Q40 || SUN3X)
-	default y
-
 config NO_IOPORT
 	def_bool y
 
 config NO_DMA
-	def_bool SUN3
+	def_bool (MMU && SUN3) || (!MMU && !COLDFIRE)
 
+config ZONE_DMA
+	bool
+	default y
 config HZ
 	int
+	default 1000 if CLEOPATRA
 	default 100
 
-config ARCH_USES_GETTIMEOFFSET
-	def_bool y
-
 source "init/Kconfig"
 
 source "kernel/Kconfig.freezer"
 
-menu "Platform dependent setup"
-
-config EISA
-	bool
-	---help---
-	  The Extended Industry Standard Architecture (EISA) bus was
-	  developed as an open alternative to the IBM MicroChannel bus.
-
-	  The EISA bus provided some of the features of the IBM MicroChannel
-	  bus while maintaining backward compatibility with cards made for
-	  the older ISA bus.  The EISA bus saw limited use between 1988 and
-	  1995 when it was made obsolete by the PCI bus.
-
-	  Say Y here if you are building a kernel for an EISA-based machine.
-
-	  Otherwise, say N.
-
-config MCA
-	bool
-	help
-	  MicroChannel Architecture is found in some IBM PS/2 machines and
-	  laptops.  It is a bus system similar to PCI or ISA. See
-	  <file:Documentation/mca.txt> (and especially the web page given
-	  there) before attempting to build an MCA bus kernel.
-
-config PCMCIA
-	tristate
-	---help---
-	  Say Y here if you want to attach PCMCIA- or PC-cards to your Linux
-	  computer.  These are credit-card size devices such as network cards,
-	  modems or hard drives often used with laptops computers.  There are
-	  actually two varieties of these cards: the older 16 bit PCMCIA cards
-	  and the newer 32 bit CardBus cards.  If you want to use CardBus
-	  cards, you need to say Y here and also to "CardBus support" below.
-
-	  To use your PC-cards, you will need supporting software from David
-	  Hinds' pcmcia-cs package (see the file <file:Documentation/Changes>
-	  for location).  Please also read the PCMCIA-HOWTO, available from
-	  <http://www.tldp.org/docs.html#howto>.
-
-	  To compile this driver as modules, choose M here: the
-	  modules will be called pcmcia_core and ds.
-
-config AMIGA
-	bool "Amiga support"
-	select MMU_MOTOROLA if MMU
-	help
-	  This option enables support for the Amiga series of computers. If
-	  you plan to use this kernel on an Amiga, say Y here and browse the
-	  material available in <file:Documentation/m68k>; otherwise say N.
-
-config ATARI
-	bool "Atari support"
-	select MMU_MOTOROLA if MMU
-	help
-	  This option enables support for the 68000-based Atari series of
-	  computers (including the TT, Falcon and Medusa). If you plan to use
-	  this kernel on an Atari, say Y here and browse the material
-	  available in <file:Documentation/m68k>; otherwise say N.
-
-config MAC
-	bool "Macintosh support"
-	select MMU_MOTOROLA if MMU
-	help
-	  This option enables support for the Apple Macintosh series of
-	  computers (yes, there is experimental support now, at least for part
-	  of the series).
-
-	  Say N unless you're willing to code the remaining necessary support.
-	  ;)
-
-config NUBUS
-	bool
-	depends on MAC
-	default y
-
-config M68K_L2_CACHE
-	bool
-	depends on MAC
-	default y
-
-config APOLLO
-	bool "Apollo support"
-	select MMU_MOTOROLA if MMU
-	help
-	  Say Y here if you want to run Linux on an MC680x0-based Apollo
-	  Domain workstation such as the DN3500.
-
-config VME
-	bool "VME (Motorola and BVM) support"
-	select MMU_MOTOROLA if MMU
-	help
-	  Say Y here if you want to build a kernel for a 680x0 based VME
-	  board.  Boards currently supported include Motorola boards MVME147,
-	  MVME162, MVME166, MVME167, MVME172, and MVME177.  BVME4000 and
-	  BVME6000 boards from BVM Ltd are also supported.
-
-config MVME147
-	bool "MVME147 support"
-	depends on VME
-	help
-	  Say Y to include support for early Motorola VME boards.  This will
-	  build a kernel which can run on MVME147 single-board computers.  If
-	  you select this option you will have to select the appropriate
-	  drivers for SCSI, Ethernet and serial ports later on.
-
-config MVME16x
-	bool "MVME162, 166 and 167 support"
-	depends on VME
-	help
-	  Say Y to include support for Motorola VME boards.  This will build a
-	  kernel which can run on MVME162, MVME166, MVME167, MVME172, and
-	  MVME177 boards.  If you select this option you will have to select
-	  the appropriate drivers for SCSI, Ethernet and serial ports later
-	  on.
-
-config BVME6000
-	bool "BVME4000 and BVME6000 support"
-	depends on VME
-	help
-	  Say Y to include support for VME boards from BVM Ltd.  This will
-	  build a kernel which can run on BVME4000 and BVME6000 boards.  If
-	  you select this option you will have to select the appropriate
-	  drivers for SCSI, Ethernet and serial ports later on.
-
-config HP300
-	bool "HP9000/300 and HP9000/400 support"
-	select MMU_MOTOROLA if MMU
-	help
-	  This option enables support for the HP9000/300 and HP9000/400 series
-	  of workstations. Support for these machines is still somewhat
-	  experimental. If you plan to try to use the kernel on such a machine
-	  say Y here.
-	  Everybody else says N.
-
-config DIO
-	bool "DIO bus support"
-	depends on HP300
+config MMU
+	bool "MMU-based Paged Memory Management Support"
 	default y
 	help
-	  Say Y here to enable support for the "DIO" expansion bus used in
-	  HP300 machines. If you are using such a system you almost certainly
-	  want this.
-
-config SUN3X
-	bool "Sun3x support"
-	select MMU_MOTOROLA if MMU
-	select M68030
-	help
-	  This option enables support for the Sun 3x series of workstations.
-	  Be warned that this support is very experimental.
-	  Note that Sun 3x kernels are not compatible with Sun 3 hardware.
-	  General Linux information on the Sun 3x series (now discontinued)
-	  is at <http://www.angelfire.com/ca2/tech68k/sun3.html>.
-
-	  If you don't want to compile a kernel for a Sun 3x, say N.
-
-config Q40
-	bool "Q40/Q60 support"
-	select MMU_MOTOROLA if MMU
-	help
-	  The Q40 is a Motorola 68040-based successor to the Sinclair QL
-	  manufactured in Germany.  There is an official Q40 home page at
-	  <http://www.q40.de/>.  This option enables support for the Q40 and
-	  Q60. Select your CPU below.  For 68LC060 don't forget to enable FPU
-	  emulation.
-
-config SUN3
-	bool "Sun3 support"
-	depends on !MMU_MOTOROLA
-	select MMU_SUN3 if MMU
-	select M68020
-	help
-	  This option enables support for the Sun 3 series of workstations
-	  (3/50, 3/60, 3/1xx, 3/2xx systems). Enabling this option requires
-	  that all other hardware types must be disabled, as Sun 3 kernels
-	  are incompatible with all other m68k targets (including Sun 3x!).
-
-	  If you don't want to compile a kernel exclusively for a Sun 3, say N.
-
-config NATFEAT
-	bool "ARAnyM emulator support"
-	depends on ATARI
-	help
-	  This option enables support for ARAnyM native features, such as
-	  access to a disk image as /dev/hda.
-
-config NFBLOCK
-	tristate "NatFeat block device support"
-	depends on BLOCK && NATFEAT
-	help
-	  Say Y to include support for the ARAnyM NatFeat block device
-	  which allows direct access to the hard drives without using
-	  the hardware emulation.
-
-config NFCON
-	tristate "NatFeat console driver"
-	depends on NATFEAT
-	help
-	  Say Y to include support for the ARAnyM NatFeat console driver
-	  which allows the console output to be redirected to the stderr
-	  output of ARAnyM.
-
-config NFETH
-	tristate "NatFeat Ethernet support"
-	depends on NET_ETHERNET && NATFEAT
-	help
-	  Say Y to include support for the ARAnyM NatFeat network device
-	  which will emulate a regular ethernet device while presenting an
-	  ethertap device to the host system.
-
-comment "Processor type"
-
-config M68020
-	bool "68020 support"
-	help
-	  If you anticipate running this kernel on a computer with a MC68020
-	  processor, say Y. Otherwise, say N. Note that the 68020 requires a
-	  68851 MMU (Memory Management Unit) to run Linux/m68k, except on the
-	  Sun 3, which provides its own version.
-
-config M68030
-	bool "68030 support"
-	depends on !MMU_SUN3
-	help
-	  If you anticipate running this kernel on a computer with a MC68030
-	  processor, say Y. Otherwise, say N. Note that a MC68EC030 will not
-	  work, as it does not include an MMU (Memory Management Unit).
-
-config M68040
-	bool "68040 support"
-	depends on !MMU_SUN3
-	help
-	  If you anticipate running this kernel on a computer with a MC68LC040
-	  or MC68040 processor, say Y. Otherwise, say N. Note that an
-	  MC68EC040 will not work, as it does not include an MMU (Memory
-	  Management Unit).
-
-config M68060
-	bool "68060 support"
-	depends on !MMU_SUN3
-	help
-	  If you anticipate running this kernel on a computer with a MC68060
-	  processor, say Y. Otherwise, say N.
-
-config MMU_MOTOROLA
-	bool
-
-config MMU_SUN3
-	bool
-	depends on MMU && !MMU_MOTOROLA
-
-config M68KFPU_EMU
-	bool "Math emulation support (EXPERIMENTAL)"
-	depends on EXPERIMENTAL
-	help
-	  At some point in the future, this will cause floating-point math
-	  instructions to be emulated by the kernel on machines that lack a
-	  floating-point math coprocessor.  Thrill-seekers and chronically
-	  sleep-deprived psychotic hacker types can say Y now, everyone else
-	  should probably wait a while.
-
-config M68KFPU_EMU_EXTRAPREC
-	bool "Math emulation extra precision"
-	depends on M68KFPU_EMU
-	help
-	  The fpu uses normally a few bit more during calculations for
-	  correct rounding, the emulator can (often) do the same but this
-	  extra calculation can cost quite some time, so you can disable
-	  it here. The emulator will then "only" calculate with a 64 bit
-	  mantissa and round slightly incorrect, what is more than enough
-	  for normal usage.
-
-config M68KFPU_EMU_ONLY
-	bool "Math emulation only kernel"
-	depends on M68KFPU_EMU
-	help
-	  This option prevents any floating-point instructions from being
-	  compiled into the kernel, thereby the kernel doesn't save any
-	  floating point context anymore during task switches, so this
-	  kernel will only be usable on machines without a floating-point
-	  math coprocessor. This makes the kernel a bit faster as no tests
-	  needs to be executed whether a floating-point instruction in the
-	  kernel should be executed or not.
-
-config ADVANCED
-	bool "Advanced configuration options"
-	---help---
-	  This gives you access to some advanced options for the CPU. The
-	  defaults should be fine for most users, but these options may make
-	  it possible for you to improve performance somewhat if you know what
-	  you are doing.
-
-	  Note that the answer to this question won't directly affect the
-	  kernel: saying N will just cause the configurator to skip all
-	  the questions about these options.
+	  Select if you want MMU-based virtualised addressing space
+	  support by paged memory management. If unsure, say 'Y'.
 
-	  Most users should say N to this question.
-
-config RMW_INSNS
-	bool "Use read-modify-write instructions"
-	depends on ADVANCED
-	---help---
-	  This allows to use certain instructions that work with indivisible
-	  read-modify-write bus cycles. While this is faster than the
-	  workaround of disabling interrupts, it can conflict with DMA
-	  ( = direct memory access) on many Amiga systems, and it is also said
-	  to destabilize other machines. It is very likely that this will
-	  cause serious problems on any Amiga or Atari Medusa if set. The only
-	  configuration where it should work are 68030-based Ataris, where it
-	  apparently improves performance. But you've been warned! Unless you
-	  really know what you are doing, say N. Try Y only if you're quite
-	  adventurous.
-
-config SINGLE_MEMORY_CHUNK
-	bool "Use one physical chunk of memory only" if ADVANCED && !SUN3
-	default y if SUN3
-	select NEED_MULTIPLE_NODES
-	help
-	  Ignore all but the first contiguous chunk of physical memory for VM
-	  purposes.  This will save a few bytes kernel size and may speed up
-	  some operations.  Say N if not sure.
+menu "Platform dependent setup"
 
-config 060_WRITETHROUGH
-	bool "Use write-through caching for 68060 supervisor accesses"
-	depends on ADVANCED && M68060
-	---help---
-	  The 68060 generally uses copyback caching of recently accessed data.
-	  Copyback caching means that memory writes will be held in an on-chip
-	  cache and only written back to memory some time later.  Saying Y
-	  here will force supervisor (kernel) accesses to use writethrough
-	  caching.  Writethrough caching means that data is written to memory
-	  straight away, so that cache and memory data always agree.
-	  Writethrough caching is less efficient, but is needed for some
-	  drivers on 68060 based systems where the 68060 bus snooping signal
-	  is hardwired on.  The 53c710 SCSI driver is known to suffer from
-	  this problem.
-
-config ARCH_DISCONTIGMEM_ENABLE
-	def_bool !SINGLE_MEMORY_CHUNK
-
-config NODES_SHIFT
-	int
-	default "3"
-	depends on !SINGLE_MEMORY_CHUNK
+if MMU
+source arch/m68k/Kconfig.mmu
+endif
+if !MMU
+source arch/m68k/Kconfig.nommu
+endif
 
 source "mm/Kconfig"
 
 endmenu
 
-menu "General setup"
+menu "Executable file formats"
 
 source "fs/Kconfig.binfmt"
 
-config ZORRO
-	bool "Amiga Zorro (AutoConfig) bus support"
-	depends on AMIGA
-	help
-	  This enables support for the Zorro bus in the Amiga. If you have
-	  expansion cards in your Amiga that conform to the Amiga
-	  AutoConfig(tm) specification, say Y, otherwise N. Note that even
-	  expansion cards that do not fit in the Zorro slots but fit in e.g.
-	  the CPU slot may fall in this category, so you have to say Y to let
-	  Linux use these.
-
-config AMIGA_PCMCIA
-	bool "Amiga 1200/600 PCMCIA support (EXPERIMENTAL)"
-	depends on AMIGA && EXPERIMENTAL
-	help
-	  Include support in the kernel for pcmcia on Amiga 1200 and Amiga
-	  600. If you intend to use pcmcia cards say Y; otherwise say N.
-
-config STRAM_PROC
-	bool "ST-RAM statistics in /proc"
-	depends on ATARI
-	help
-	  Say Y here to report ST-RAM usage statistics in /proc/stram.
-
-config HEARTBEAT
-	bool "Use power LED as a heartbeat" if AMIGA || APOLLO || ATARI || MAC ||Q40
-	default y if !AMIGA && !APOLLO && !ATARI && !MAC && !Q40 && HP300
-	help
-	  Use the power-on LED on your machine as a load meter.  The exact
-	  behavior is platform-dependent, but normally the flash frequency is
-	  a hyperbolic function of the 5-minute load average.
-
-# We have a dedicated heartbeat LED. :-)
-config PROC_HARDWARE
-	bool "/proc/hardware support"
-	help
-	  Say Y here to support the /proc/hardware file, which gives you
-	  access to information about the machine you're running on,
-	  including the model, CPU, MMU, clock speed, BogoMIPS rating,
-	  and memory size.
-
-config ISA
-	bool
-	depends on Q40 || AMIGA_PCMCIA
-	default y
-	help
-	  Find out whether you have ISA slots on your motherboard.  ISA is the
-	  name of a bus system, i.e. the way the CPU talks to the other stuff
-	  inside your box.  Other bus systems are PCI, EISA, MicroChannel
-	  (MCA) or VESA.  ISA is an older system, now being displaced by PCI;
-	  newer boards don't support it.  If you have ISA, say Y, otherwise N.
-
-config GENERIC_ISA_DMA
-	bool
-	depends on Q40 || AMIGA_PCMCIA
-	default y
-
-config ZONE_DMA
-	bool
-	default y
+endmenu
 
-source "drivers/pci/Kconfig"
+if !MMU
+menu "Power management options"
 
-source "drivers/zorro/Kconfig"
+config PM
+        bool "Power Management support"
+        help
+          Support processor power management modes
 
 endmenu
+endif
 
 source "net/Kconfig"
 
 source "drivers/Kconfig"
 
+if MMU
+
 menu "Character devices"
 
 config ATARI_MFPSER
@@ -627,6 +234,8 @@ config SERIAL_CONSOLE
 
 endmenu
 
+endif
+
 source "fs/Kconfig"
 
 source "arch/m68k/Kconfig.debug"
diff --git a/arch/m68k/Kconfig.debug b/arch/m68k/Kconfig.debug
index f53b6d5300e5..2bdb1b01115c 100644
--- a/arch/m68k/Kconfig.debug
+++ b/arch/m68k/Kconfig.debug
@@ -2,4 +2,38 @@ menu "Kernel hacking"
 
 source "lib/Kconfig.debug"
 
+if !MMU
+
+config FULLDEBUG
+	bool "Full Symbolic/Source Debugging support"
+	help
+	  Enable debugging symbols on kernel build.
+
+config HIGHPROFILE
+	bool "Use fast second timer for profiling"
+	depends on COLDFIRE
+	help
+	  Use a fast secondary clock to produce profiling information.
+
+config BOOTPARAM
+	bool 'Compiled-in Kernel Boot Parameter'
+
+config BOOTPARAM_STRING
+	string 'Kernel Boot Parameter'
+	default 'console=ttyS0,19200'
+	depends on BOOTPARAM
+
+config NO_KERNEL_MSG
+	bool "Suppress Kernel BUG Messages"
+	help
+	  Do not output any debug BUG messages within the kernel.
+
+config BDM_DISABLE
+	bool "Disable BDM signals"
+	depends on (EXPERIMENTAL && COLDFIRE)
+	help
+	  Disable the ColdFire CPU's BDM signals.
+
+endif
+
 endmenu
diff --git a/arch/m68k/Kconfig.mmu b/arch/m68k/Kconfig.mmu
new file mode 100644
index 000000000000..16539b1d5d3a
--- /dev/null
+++ b/arch/m68k/Kconfig.mmu
@@ -0,0 +1,417 @@
+config GENERIC_IOMAP
+	bool
+	default y
+
+config ARCH_MAY_HAVE_PC_FDC
+	bool
+	depends on BROKEN && (Q40 || SUN3X)
+	default y
+
+config ARCH_USES_GETTIMEOFFSET
+	def_bool y
+
+config EISA
+	bool
+	---help---
+	  The Extended Industry Standard Architecture (EISA) bus was
+	  developed as an open alternative to the IBM MicroChannel bus.
+
+	  The EISA bus provided some of the features of the IBM MicroChannel
+	  bus while maintaining backward compatibility with cards made for
+	  the older ISA bus.  The EISA bus saw limited use between 1988 and
+	  1995 when it was made obsolete by the PCI bus.
+
+	  Say Y here if you are building a kernel for an EISA-based machine.
+
+	  Otherwise, say N.
+
+config MCA
+	bool
+	help
+	  MicroChannel Architecture is found in some IBM PS/2 machines and
+	  laptops.  It is a bus system similar to PCI or ISA. See
+	  <file:Documentation/mca.txt> (and especially the web page given
+	  there) before attempting to build an MCA bus kernel.
+
+config PCMCIA
+	tristate
+	---help---
+	  Say Y here if you want to attach PCMCIA- or PC-cards to your Linux
+	  computer.  These are credit-card size devices such as network cards,
+	  modems or hard drives often used with laptops computers.  There are
+	  actually two varieties of these cards: the older 16 bit PCMCIA cards
+	  and the newer 32 bit CardBus cards.  If you want to use CardBus
+	  cards, you need to say Y here and also to "CardBus support" below.
+
+	  To use your PC-cards, you will need supporting software from David
+	  Hinds' pcmcia-cs package (see the file <file:Documentation/Changes>
+	  for location).  Please also read the PCMCIA-HOWTO, available from
+	  <http://www.tldp.org/docs.html#howto>.
+
+	  To compile this driver as modules, choose M here: the
+	  modules will be called pcmcia_core and ds.
+
+config AMIGA
+	bool "Amiga support"
+	select MMU_MOTOROLA if MMU
+	help
+	  This option enables support for the Amiga series of computers. If
+	  you plan to use this kernel on an Amiga, say Y here and browse the
+	  material available in <file:Documentation/m68k>; otherwise say N.
+
+config ATARI
+	bool "Atari support"
+	select MMU_MOTOROLA if MMU
+	help
+	  This option enables support for the 68000-based Atari series of
+	  computers (including the TT, Falcon and Medusa). If you plan to use
+	  this kernel on an Atari, say Y here and browse the material
+	  available in <file:Documentation/m68k>; otherwise say N.
+
+config MAC
+	bool "Macintosh support"
+	select MMU_MOTOROLA if MMU
+	help
+	  This option enables support for the Apple Macintosh series of
+	  computers (yes, there is experimental support now, at least for part
+	  of the series).
+
+	  Say N unless you're willing to code the remaining necessary support.
+	  ;)
+
+config NUBUS
+	bool
+	depends on MAC
+	default y
+
+config M68K_L2_CACHE
+	bool
+	depends on MAC
+	default y
+
+config APOLLO
+	bool "Apollo support"
+	select MMU_MOTOROLA if MMU
+	help
+	  Say Y here if you want to run Linux on an MC680x0-based Apollo
+	  Domain workstation such as the DN3500.
+
+config VME
+	bool "VME (Motorola and BVM) support"
+	select MMU_MOTOROLA if MMU
+	help
+	  Say Y here if you want to build a kernel for a 680x0 based VME
+	  board.  Boards currently supported include Motorola boards MVME147,
+	  MVME162, MVME166, MVME167, MVME172, and MVME177.  BVME4000 and
+	  BVME6000 boards from BVM Ltd are also supported.
+
+config MVME147
+	bool "MVME147 support"
+	depends on VME
+	help
+	  Say Y to include support for early Motorola VME boards.  This will
+	  build a kernel which can run on MVME147 single-board computers.  If
+	  you select this option you will have to select the appropriate
+	  drivers for SCSI, Ethernet and serial ports later on.
+
+config MVME16x
+	bool "MVME162, 166 and 167 support"
+	depends on VME
+	help
+	  Say Y to include support for Motorola VME boards.  This will build a
+	  kernel which can run on MVME162, MVME166, MVME167, MVME172, and
+	  MVME177 boards.  If you select this option you will have to select
+	  the appropriate drivers for SCSI, Ethernet and serial ports later
+	  on.
+
+config BVME6000
+	bool "BVME4000 and BVME6000 support"
+	depends on VME
+	help
+	  Say Y to include support for VME boards from BVM Ltd.  This will
+	  build a kernel which can run on BVME4000 and BVME6000 boards.  If
+	  you select this option you will have to select the appropriate
+	  drivers for SCSI, Ethernet and serial ports later on.
+
+config HP300
+	bool "HP9000/300 and HP9000/400 support"
+	select MMU_MOTOROLA if MMU
+	help
+	  This option enables support for the HP9000/300 and HP9000/400 series
+	  of workstations. Support for these machines is still somewhat
+	  experimental. If you plan to try to use the kernel on such a machine
+	  say Y here.
+	  Everybody else says N.
+
+config DIO
+	bool "DIO bus support"
+	depends on HP300
+	default y
+	help
+	  Say Y here to enable support for the "DIO" expansion bus used in
+	  HP300 machines. If you are using such a system you almost certainly
+	  want this.
+
+config SUN3X
+	bool "Sun3x support"
+	select MMU_MOTOROLA if MMU
+	select M68030
+	help
+	  This option enables support for the Sun 3x series of workstations.
+	  Be warned that this support is very experimental.
+	  Note that Sun 3x kernels are not compatible with Sun 3 hardware.
+	  General Linux information on the Sun 3x series (now discontinued)
+	  is at <http://www.angelfire.com/ca2/tech68k/sun3.html>.
+
+	  If you don't want to compile a kernel for a Sun 3x, say N.
+
+config Q40
+	bool "Q40/Q60 support"
+	select MMU_MOTOROLA if MMU
+	help
+	  The Q40 is a Motorola 68040-based successor to the Sinclair QL
+	  manufactured in Germany.  There is an official Q40 home page at
+	  <http://www.q40.de/>.  This option enables support for the Q40 and
+	  Q60. Select your CPU below.  For 68LC060 don't forget to enable FPU
+	  emulation.
+
+config SUN3
+	bool "Sun3 support"
+	depends on !MMU_MOTOROLA
+	select MMU_SUN3 if MMU
+	select M68020
+	help
+	  This option enables support for the Sun 3 series of workstations
+	  (3/50, 3/60, 3/1xx, 3/2xx systems). Enabling this option requires
+	  that all other hardware types must be disabled, as Sun 3 kernels
+	  are incompatible with all other m68k targets (including Sun 3x!).
+
+	  If you don't want to compile a kernel exclusively for a Sun 3, say N.
+
+config NATFEAT
+	bool "ARAnyM emulator support"
+	depends on ATARI
+	help
+	  This option enables support for ARAnyM native features, such as
+	  access to a disk image as /dev/hda.
+
+config NFBLOCK
+	tristate "NatFeat block device support"
+	depends on BLOCK && NATFEAT
+	help
+	  Say Y to include support for the ARAnyM NatFeat block device
+	  which allows direct access to the hard drives without using
+	  the hardware emulation.
+
+config NFCON
+	tristate "NatFeat console driver"
+	depends on NATFEAT
+	help
+	  Say Y to include support for the ARAnyM NatFeat console driver
+	  which allows the console output to be redirected to the stderr
+	  output of ARAnyM.
+
+config NFETH
+	tristate "NatFeat Ethernet support"
+	depends on NET_ETHERNET && NATFEAT
+	help
+	  Say Y to include support for the ARAnyM NatFeat network device
+	  which will emulate a regular ethernet device while presenting an
+	  ethertap device to the host system.
+
+comment "Processor type"
+
+config M68020
+	bool "68020 support"
+	help
+	  If you anticipate running this kernel on a computer with a MC68020
+	  processor, say Y. Otherwise, say N. Note that the 68020 requires a
+	  68851 MMU (Memory Management Unit) to run Linux/m68k, except on the
+	  Sun 3, which provides its own version.
+
+config M68030
+	bool "68030 support"
+	depends on !MMU_SUN3
+	help
+	  If you anticipate running this kernel on a computer with a MC68030
+	  processor, say Y. Otherwise, say N. Note that a MC68EC030 will not
+	  work, as it does not include an MMU (Memory Management Unit).
+
+config M68040
+	bool "68040 support"
+	depends on !MMU_SUN3
+	help
+	  If you anticipate running this kernel on a computer with a MC68LC040
+	  or MC68040 processor, say Y. Otherwise, say N. Note that an
+	  MC68EC040 will not work, as it does not include an MMU (Memory
+	  Management Unit).
+
+config M68060
+	bool "68060 support"
+	depends on !MMU_SUN3
+	help
+	  If you anticipate running this kernel on a computer with a MC68060
+	  processor, say Y. Otherwise, say N.
+
+config MMU_MOTOROLA
+	bool
+
+config MMU_SUN3
+	bool
+	depends on MMU && !MMU_MOTOROLA
+
+config M68KFPU_EMU
+	bool "Math emulation support (EXPERIMENTAL)"
+	depends on EXPERIMENTAL
+	help
+	  At some point in the future, this will cause floating-point math
+	  instructions to be emulated by the kernel on machines that lack a
+	  floating-point math coprocessor.  Thrill-seekers and chronically
+	  sleep-deprived psychotic hacker types can say Y now, everyone else
+	  should probably wait a while.
+
+config M68KFPU_EMU_EXTRAPREC
+	bool "Math emulation extra precision"
+	depends on M68KFPU_EMU
+	help
+	  The fpu uses normally a few bit more during calculations for
+	  correct rounding, the emulator can (often) do the same but this
+	  extra calculation can cost quite some time, so you can disable
+	  it here. The emulator will then "only" calculate with a 64 bit
+	  mantissa and round slightly incorrect, what is more than enough
+	  for normal usage.
+
+config M68KFPU_EMU_ONLY
+	bool "Math emulation only kernel"
+	depends on M68KFPU_EMU
+	help
+	  This option prevents any floating-point instructions from being
+	  compiled into the kernel, thereby the kernel doesn't save any
+	  floating point context anymore during task switches, so this
+	  kernel will only be usable on machines without a floating-point
+	  math coprocessor. This makes the kernel a bit faster as no tests
+	  needs to be executed whether a floating-point instruction in the
+	  kernel should be executed or not.
+
+config ADVANCED
+	bool "Advanced configuration options"
+	---help---
+	  This gives you access to some advanced options for the CPU. The
+	  defaults should be fine for most users, but these options may make
+	  it possible for you to improve performance somewhat if you know what
+	  you are doing.
+
+	  Note that the answer to this question won't directly affect the
+	  kernel: saying N will just cause the configurator to skip all
+	  the questions about these options.
+
+	  Most users should say N to this question.
+
+config RMW_INSNS
+	bool "Use read-modify-write instructions"
+	depends on ADVANCED
+	---help---
+	  This allows to use certain instructions that work with indivisible
+	  read-modify-write bus cycles. While this is faster than the
+	  workaround of disabling interrupts, it can conflict with DMA
+	  ( = direct memory access) on many Amiga systems, and it is also said
+	  to destabilize other machines. It is very likely that this will
+	  cause serious problems on any Amiga or Atari Medusa if set. The only
+	  configuration where it should work are 68030-based Ataris, where it
+	  apparently improves performance. But you've been warned! Unless you
+	  really know what you are doing, say N. Try Y only if you're quite
+	  adventurous.
+
+config SINGLE_MEMORY_CHUNK
+	bool "Use one physical chunk of memory only" if ADVANCED && !SUN3
+	default y if SUN3
+	select NEED_MULTIPLE_NODES
+	help
+	  Ignore all but the first contiguous chunk of physical memory for VM
+	  purposes.  This will save a few bytes kernel size and may speed up
+	  some operations.  Say N if not sure.
+
+config 060_WRITETHROUGH
+	bool "Use write-through caching for 68060 supervisor accesses"
+	depends on ADVANCED && M68060
+	---help---
+	  The 68060 generally uses copyback caching of recently accessed data.
+	  Copyback caching means that memory writes will be held in an on-chip
+	  cache and only written back to memory some time later.  Saying Y
+	  here will force supervisor (kernel) accesses to use writethrough
+	  caching.  Writethrough caching means that data is written to memory
+	  straight away, so that cache and memory data always agree.
+	  Writethrough caching is less efficient, but is needed for some
+	  drivers on 68060 based systems where the 68060 bus snooping signal
+	  is hardwired on.  The 53c710 SCSI driver is known to suffer from
+	  this problem.
+
+config ARCH_DISCONTIGMEM_ENABLE
+	def_bool !SINGLE_MEMORY_CHUNK
+
+config NODES_SHIFT
+	int
+	default "3"
+	depends on !SINGLE_MEMORY_CHUNK
+
+config ZORRO
+	bool "Amiga Zorro (AutoConfig) bus support"
+	depends on AMIGA
+	help
+	  This enables support for the Zorro bus in the Amiga. If you have
+	  expansion cards in your Amiga that conform to the Amiga
+	  AutoConfig(tm) specification, say Y, otherwise N. Note that even
+	  expansion cards that do not fit in the Zorro slots but fit in e.g.
+	  the CPU slot may fall in this category, so you have to say Y to let
+	  Linux use these.
+
+config AMIGA_PCMCIA
+	bool "Amiga 1200/600 PCMCIA support (EXPERIMENTAL)"
+	depends on AMIGA && EXPERIMENTAL
+	help
+	  Include support in the kernel for pcmcia on Amiga 1200 and Amiga
+	  600. If you intend to use pcmcia cards say Y; otherwise say N.
+
+config STRAM_PROC
+	bool "ST-RAM statistics in /proc"
+	depends on ATARI
+	help
+	  Say Y here to report ST-RAM usage statistics in /proc/stram.
+
+config HEARTBEAT
+	bool "Use power LED as a heartbeat" if AMIGA || APOLLO || ATARI || MAC ||Q40
+	default y if !AMIGA && !APOLLO && !ATARI && !MAC && !Q40 && HP300
+	help
+	  Use the power-on LED on your machine as a load meter.  The exact
+	  behavior is platform-dependent, but normally the flash frequency is
+	  a hyperbolic function of the 5-minute load average.
+
+# We have a dedicated heartbeat LED. :-)
+config PROC_HARDWARE
+	bool "/proc/hardware support"
+	help
+	  Say Y here to support the /proc/hardware file, which gives you
+	  access to information about the machine you're running on,
+	  including the model, CPU, MMU, clock speed, BogoMIPS rating,
+	  and memory size.
+
+config ISA
+	bool
+	depends on Q40 || AMIGA_PCMCIA
+	default y
+	help
+	  Find out whether you have ISA slots on your motherboard.  ISA is the
+	  name of a bus system, i.e. the way the CPU talks to the other stuff
+	  inside your box.  Other bus systems are PCI, EISA, MicroChannel
+	  (MCA) or VESA.  ISA is an older system, now being displaced by PCI;
+	  newer boards don't support it.  If you have ISA, say Y, otherwise N.
+
+config GENERIC_ISA_DMA
+	bool
+	depends on Q40 || AMIGA_PCMCIA
+	default y
+
+source "drivers/pci/Kconfig"
+
+source "drivers/zorro/Kconfig"
+
diff --git a/arch/m68knommu/Kconfig b/arch/m68k/Kconfig.nommu
index b5424cf948e6..273bccab9517 100644
--- a/arch/m68knommu/Kconfig
+++ b/arch/m68k/Kconfig.nommu
@@ -1,43 +1,7 @@
-config M68K
-	bool
-	default y
-	select HAVE_IDE
-	select HAVE_GENERIC_HARDIRQS
-	select GENERIC_HARDIRQS_NO_DEPRECATED
-
-config MMU
-	bool
-	default n
-
-config NO_DMA
-	bool
-	depends on !COLDFIRE
-	default y
-
 config FPU
 	bool
 	default n
 
-config ZONE_DMA
-	bool
-	default y
-
-config RWSEM_GENERIC_SPINLOCK
-	bool
-	default y
-
-config RWSEM_XCHGADD_ALGORITHM
-	bool
-	default n
-
-config ARCH_HAS_ILOG2_U32
-	bool
-	default n
-
-config ARCH_HAS_ILOG2_U64
-	bool
-	default n
-
 config GENERIC_FIND_NEXT_BIT
 	bool
 	default y
@@ -46,29 +10,14 @@ config GENERIC_GPIO
 	bool
 	default n
 
-config GENERIC_HWEIGHT
-	bool
-	default y
-
-config GENERIC_CALIBRATE_DELAY
-	bool
-	default y
-
 config GENERIC_CMOS_UPDATE
 	bool
 	default y
 
-config TIME_LOW_RES
-	bool
-	default y
-
 config GENERIC_CLOCKEVENTS
 	bool
 	default n
 
-config NO_IOPORT
-	def_bool y
-
 config COLDFIRE_SW_A7
 	bool
 	default n
@@ -85,12 +34,6 @@ config HAVE_MBAR
 config HAVE_IPSBAR
 	bool
 
-source "init/Kconfig"
-
-source "kernel/Kconfig.freezer"
-
-menu "Processor type and features"
-
 choice
 	prompt "CPU"
 	default M68EZ328
@@ -630,11 +573,6 @@ config 4KSTACKS
 	  running more threads on a system and also reduces the pressure
 	  on the VM subsystem for higher order allocations.
 
-config HZ
-	int
-	default 1000 if CLEOPATRA
-	default 100
-
 comment "RAM configuration"
 
 config RAMBASE
@@ -803,10 +741,6 @@ endif
 
 source "kernel/time/Kconfig"
 
-source "mm/Kconfig"
-
-endmenu
-
 config ISA_DMA_API
 	bool
 	depends on !M5272
@@ -814,31 +748,3 @@ config ISA_DMA_API
 
 source "drivers/pcmcia/Kconfig"
 
-menu "Executable file formats"
-
-source "fs/Kconfig.binfmt"
-
-endmenu
-
-menu "Power management options"
-
-config PM
-	bool "Power Management support"
-	help
-	  Support processor power management modes
-
-endmenu
-
-source "net/Kconfig"
-
-source "drivers/Kconfig"
-
-source "fs/Kconfig"
-
-source "arch/m68knommu/Kconfig.debug"
-
-source "security/Kconfig"
-
-source "crypto/Kconfig"
-
-source "lib/Kconfig"
diff --git a/arch/m68k/Makefile b/arch/m68k/Makefile
index b793163abc61..be46cadd4017 100644
--- a/arch/m68k/Makefile
+++ b/arch/m68k/Makefile
@@ -1,123 +1,7 @@
-#
-# m68k/Makefile
-#
-# This file is included by the global makefile so that you can add your own
-# architecture-specific flags and dependencies. Remember to do have actions
-# for "archclean" and "archdep" for cleaning up and making dependencies for
-# this architecture
-#
-# This file is subject to the terms and conditions of the GNU General Public
-# License.  See the file "COPYING" in the main directory of this archive
-# for more details.
-#
-# Copyright (C) 1994 by Hamish Macdonald
-#
-
 KBUILD_DEFCONFIG := multi_defconfig
 
-# override top level makefile
-AS += -m68020
-LDFLAGS := -m m68kelf
-KBUILD_LDFLAGS_MODULE += -T $(srctree)/arch/m68k/kernel/module.lds
-ifneq ($(SUBARCH),$(ARCH))
-	ifeq ($(CROSS_COMPILE),)
-		CROSS_COMPILE := $(call cc-cross-prefix, \
-			m68k-linux-gnu- m68k-linux- m68k-unknown-linux-gnu-)
-	endif
-endif
-
-ifdef CONFIG_SUN3
-LDFLAGS_vmlinux = -N
-endif
-
-CHECKFLAGS += -D__mc68000__
-
-# without -fno-strength-reduce the 53c7xx.c driver fails ;-(
-KBUILD_CFLAGS += -pipe -fno-strength-reduce -ffixed-a2
-
-# enable processor switch if compiled only for a single cpu
-ifndef CONFIG_M68020
-ifndef CONFIG_M68030
-
-ifndef CONFIG_M68060
-KBUILD_CFLAGS += -m68040
-endif
-
-ifndef CONFIG_M68040
-KBUILD_CFLAGS += -m68060
-endif
-
-endif
-endif
-
-ifdef CONFIG_KGDB
-# If configured for kgdb support, include debugging infos and keep the
-# frame pointer
-KBUILD_CFLAGS := $(subst -fomit-frame-pointer,,$(KBUILD_CFLAGS)) -g
-endif
-
-ifndef CONFIG_SUN3
-head-y := arch/m68k/kernel/head.o
+ifdef CONFIG_MMU
+include $(srctree)/arch/m68k/Makefile_mm
 else
-head-y := arch/m68k/kernel/sun3-head.o
+include $(srctree)/arch/m68k/Makefile_no
 endif
-
-core-y				+= arch/m68k/kernel/	arch/m68k/mm/
-libs-y				+= arch/m68k/lib/
-
-core-$(CONFIG_Q40)		+= arch/m68k/q40/
-core-$(CONFIG_AMIGA)		+= arch/m68k/amiga/
-core-$(CONFIG_ATARI)		+= arch/m68k/atari/
-core-$(CONFIG_MAC)		+= arch/m68k/mac/
-core-$(CONFIG_HP300)		+= arch/m68k/hp300/
-core-$(CONFIG_APOLLO)		+= arch/m68k/apollo/
-core-$(CONFIG_MVME147)		+= arch/m68k/mvme147/
-core-$(CONFIG_MVME16x)		+= arch/m68k/mvme16x/
-core-$(CONFIG_BVME6000)		+= arch/m68k/bvme6000/
-core-$(CONFIG_SUN3X)		+= arch/m68k/sun3x/	arch/m68k/sun3/
-core-$(CONFIG_SUN3)		+= arch/m68k/sun3/	arch/m68k/sun3/prom/
-core-$(CONFIG_NATFEAT)		+= arch/m68k/emu/
-core-$(CONFIG_M68040)		+= arch/m68k/fpsp040/
-core-$(CONFIG_M68060)		+= arch/m68k/ifpsp060/
-core-$(CONFIG_M68KFPU_EMU)	+= arch/m68k/math-emu/
-
-all:	zImage
-
-lilo:	vmlinux
-	if [ -f $(INSTALL_PATH)/vmlinux ]; then mv -f $(INSTALL_PATH)/vmlinux $(INSTALL_PATH)/vmlinux.old; fi
-	if [ -f $(INSTALL_PATH)/System.map ]; then mv -f $(INSTALL_PATH)/System.map $(INSTALL_PATH)/System.old; fi
-	cat vmlinux > $(INSTALL_PATH)/vmlinux
-	cp System.map $(INSTALL_PATH)/System.map
-	if [ -x /sbin/lilo ]; then /sbin/lilo; else /etc/lilo/install; fi
-
-zImage compressed: vmlinux.gz
-
-vmlinux.gz: vmlinux
-
-ifndef CONFIG_KGDB
-	cp vmlinux vmlinux.tmp
-	$(STRIP) vmlinux.tmp
-	gzip -9c vmlinux.tmp >vmlinux.gz
-	rm vmlinux.tmp
-else
-	gzip -9c vmlinux >vmlinux.gz
-endif
-
-bzImage: vmlinux.bz2
-
-vmlinux.bz2: vmlinux
-
-ifndef CONFIG_KGDB
-	cp vmlinux vmlinux.tmp
-	$(STRIP) vmlinux.tmp
-	bzip2 -1c vmlinux.tmp >vmlinux.bz2
-	rm vmlinux.tmp
-else
-	bzip2 -1c vmlinux >vmlinux.bz2
-endif
-
-archclean:
-	rm -f vmlinux.gz vmlinux.bz2
-
-install:
-	sh $(srctree)/arch/m68k/install.sh $(KERNELRELEASE) vmlinux.gz System.map "$(INSTALL_PATH)"
diff --git a/arch/m68k/Makefile_mm b/arch/m68k/Makefile_mm
new file mode 100644
index 000000000000..d449b6d5aecf
--- /dev/null
+++ b/arch/m68k/Makefile_mm
@@ -0,0 +1,121 @@
+#
+# m68k/Makefile
+#
+# This file is included by the global makefile so that you can add your own
+# architecture-specific flags and dependencies. Remember to do have actions
+# for "archclean" and "archdep" for cleaning up and making dependencies for
+# this architecture
+#
+# This file is subject to the terms and conditions of the GNU General Public
+# License.  See the file "COPYING" in the main directory of this archive
+# for more details.
+#
+# Copyright (C) 1994 by Hamish Macdonald
+#
+
+# override top level makefile
+AS += -m68020
+LDFLAGS := -m m68kelf
+KBUILD_LDFLAGS_MODULE += -T $(srctree)/arch/m68k/kernel/module.lds
+ifneq ($(SUBARCH),$(ARCH))
+	ifeq ($(CROSS_COMPILE),)
+		CROSS_COMPILE := $(call cc-cross-prefix, \
+			m68k-linux-gnu- m68k-linux- m68k-unknown-linux-gnu-)
+	endif
+endif
+
+ifdef CONFIG_SUN3
+LDFLAGS_vmlinux = -N
+endif
+
+CHECKFLAGS += -D__mc68000__
+
+# without -fno-strength-reduce the 53c7xx.c driver fails ;-(
+KBUILD_CFLAGS += -pipe -fno-strength-reduce -ffixed-a2
+
+# enable processor switch if compiled only for a single cpu
+ifndef CONFIG_M68020
+ifndef CONFIG_M68030
+
+ifndef CONFIG_M68060
+KBUILD_CFLAGS += -m68040
+endif
+
+ifndef CONFIG_M68040
+KBUILD_CFLAGS += -m68060
+endif
+
+endif
+endif
+
+ifdef CONFIG_KGDB
+# If configured for kgdb support, include debugging infos and keep the
+# frame pointer
+KBUILD_CFLAGS := $(subst -fomit-frame-pointer,,$(KBUILD_CFLAGS)) -g
+endif
+
+ifndef CONFIG_SUN3
+head-y := arch/m68k/kernel/head.o
+else
+head-y := arch/m68k/kernel/sun3-head.o
+endif
+
+core-y				+= arch/m68k/kernel/	arch/m68k/mm/
+libs-y				+= arch/m68k/lib/
+
+core-$(CONFIG_Q40)		+= arch/m68k/q40/
+core-$(CONFIG_AMIGA)		+= arch/m68k/amiga/
+core-$(CONFIG_ATARI)		+= arch/m68k/atari/
+core-$(CONFIG_MAC)		+= arch/m68k/mac/
+core-$(CONFIG_HP300)		+= arch/m68k/hp300/
+core-$(CONFIG_APOLLO)		+= arch/m68k/apollo/
+core-$(CONFIG_MVME147)		+= arch/m68k/mvme147/
+core-$(CONFIG_MVME16x)		+= arch/m68k/mvme16x/
+core-$(CONFIG_BVME6000)		+= arch/m68k/bvme6000/
+core-$(CONFIG_SUN3X)		+= arch/m68k/sun3x/	arch/m68k/sun3/
+core-$(CONFIG_SUN3)		+= arch/m68k/sun3/	arch/m68k/sun3/prom/
+core-$(CONFIG_NATFEAT)		+= arch/m68k/emu/
+core-$(CONFIG_M68040)		+= arch/m68k/fpsp040/
+core-$(CONFIG_M68060)		+= arch/m68k/ifpsp060/
+core-$(CONFIG_M68KFPU_EMU)	+= arch/m68k/math-emu/
+
+all:	zImage
+
+lilo:	vmlinux
+	if [ -f $(INSTALL_PATH)/vmlinux ]; then mv -f $(INSTALL_PATH)/vmlinux $(INSTALL_PATH)/vmlinux.old; fi
+	if [ -f $(INSTALL_PATH)/System.map ]; then mv -f $(INSTALL_PATH)/System.map $(INSTALL_PATH)/System.old; fi
+	cat vmlinux > $(INSTALL_PATH)/vmlinux
+	cp System.map $(INSTALL_PATH)/System.map
+	if [ -x /sbin/lilo ]; then /sbin/lilo; else /etc/lilo/install; fi
+
+zImage compressed: vmlinux.gz
+
+vmlinux.gz: vmlinux
+
+ifndef CONFIG_KGDB
+	cp vmlinux vmlinux.tmp
+	$(STRIP) vmlinux.tmp
+	gzip -9c vmlinux.tmp >vmlinux.gz
+	rm vmlinux.tmp
+else
+	gzip -9c vmlinux >vmlinux.gz
+endif
+
+bzImage: vmlinux.bz2
+
+vmlinux.bz2: vmlinux
+
+ifndef CONFIG_KGDB
+	cp vmlinux vmlinux.tmp
+	$(STRIP) vmlinux.tmp
+	bzip2 -1c vmlinux.tmp >vmlinux.bz2
+	rm vmlinux.tmp
+else
+	bzip2 -1c vmlinux >vmlinux.bz2
+endif
+
+archclean:
+	rm -f vmlinux.gz vmlinux.bz2
+
+install:
+	sh $(srctree)/arch/m68k/install.sh $(KERNELRELEASE) vmlinux.gz System.map "$(INSTALL_PATH)"
diff --git a/arch/m68knommu/Makefile b/arch/m68k/Makefile_no
index 589613fed31d..81652ab893e1 100644
--- a/arch/m68knommu/Makefile
+++ b/arch/m68k/Makefile_no
@@ -1,5 +1,5 @@
 #
-# arch/m68knommu/Makefile
+# arch/m68k/Makefile
 #
 # This file is subject to the terms and conditions of the GNU General Public
 # License.  See the file "COPYING" in the main directory of this archive
@@ -8,8 +8,6 @@
 # (C) Copyright 2002, Greg Ungerer <gerg@snapgear.com>
 #
 
-KBUILD_DEFCONFIG := m5208evb_defconfig
-
 platform-$(CONFIG_M68328)	:= 68328
 platform-$(CONFIG_M68EZ328)	:= 68EZ328
 platform-$(CONFIG_M68VZ328)	:= 68VZ328
@@ -82,7 +80,7 @@ cpuclass-$(CONFIG_M68360)	:= 68360
 CPUCLASS := $(cpuclass-y)
 
 ifneq ($(CPUCLASS),$(PLATFORM))
-CLASSDIR := arch/m68knommu/platform/$(cpuclass-y)/
+CLASSDIR := arch/m68k/platform/$(cpuclass-y)/
 endif
 
 export PLATFORM BOARD MODEL CPUCLASS
@@ -114,13 +112,13 @@ KBUILD_CFLAGS += $(cflags-y)
 KBUILD_CFLAGS += -D__linux__
 KBUILD_CFLAGS += -DUTS_SYSNAME=\"uClinux\"
 
-head-y := arch/m68knommu/platform/$(cpuclass-y)/head.o
+head-y := arch/m68k/platform/$(cpuclass-y)/head.o
 
-core-y	+= arch/m68knommu/kernel/ \
-	   arch/m68knommu/mm/ \
+core-y	+= arch/m68k/kernel/ \
+	   arch/m68k/mm/ \
 	   $(CLASSDIR) \
-	   arch/m68knommu/platform/$(PLATFORM)/
-libs-y	+= arch/m68knommu/lib/
+	   arch/m68k/platform/$(PLATFORM)/
+libs-y	+= arch/m68k/lib/
 
 archclean:
 
diff --git a/arch/m68k/atari/atakeyb.c b/arch/m68k/atari/atakeyb.c
index 5890897d28bf..b995513d527f 100644
--- a/arch/m68k/atari/atakeyb.c
+++ b/arch/m68k/atari/atakeyb.c
@@ -130,7 +130,7 @@ KEYBOARD_STATE kb_state;
  * it's really hard to decide whether they're mouse or keyboard bytes. Since
  * overruns usually occur when moving the Atari mouse rapidly, they're seen as
  * mouse bytes here. If this is wrong, only a make code of the keyboard gets
- * lost, which isn't too bad. Loosing a break code would be disastrous,
+ * lost, which isn't too bad. Losing a break code would be disastrous,
  * because then the keyboard repeat strikes...
  */
 
diff --git a/arch/m68knommu/configs/m5208evb_defconfig b/arch/m68k/configs/m5208evb_defconfig
index 2f5655c577af..c1616824e201 100644
--- a/arch/m68knommu/configs/m5208evb_defconfig
+++ b/arch/m68k/configs/m5208evb_defconfig
@@ -1,3 +1,4 @@
+# CONFIG_MMU is not set
 CONFIG_EXPERIMENTAL=y
 CONFIG_LOG_BUF_SHIFT=14
 # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
@@ -37,6 +38,7 @@ CONFIG_INET=y
 # CONFIG_INET_LRO is not set
 # CONFIG_INET_DIAG is not set
 # CONFIG_IPV6 is not set
+# CONFIG_FW_LOADER is not set
 CONFIG_MTD=y
 CONFIG_MTD_PARTITIONS=y
 CONFIG_MTD_CHAR=y
diff --git a/arch/m68knommu/configs/m5249evb_defconfig b/arch/m68k/configs/m5249evb_defconfig
index 16df72bfbd45..a6599e42facf 100644
--- a/arch/m68knommu/configs/m5249evb_defconfig
+++ b/arch/m68k/configs/m5249evb_defconfig
@@ -1,3 +1,4 @@
+# CONFIG_MMU is not set
 CONFIG_EXPERIMENTAL=y
 CONFIG_LOG_BUF_SHIFT=14
 # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
@@ -35,6 +36,7 @@ CONFIG_INET=y
 # CONFIG_INET_LRO is not set
 # CONFIG_INET_DIAG is not set
 # CONFIG_IPV6 is not set
+# CONFIG_FW_LOADER is not set
 CONFIG_MTD=y
 CONFIG_MTD_PARTITIONS=y
 CONFIG_MTD_CHAR=y
diff --git a/arch/m68knommu/configs/m5272c3_defconfig b/arch/m68k/configs/m5272c3_defconfig
index 4e6ea50c7f33..3fa60a57a0f9 100644
--- a/arch/m68knommu/configs/m5272c3_defconfig
+++ b/arch/m68k/configs/m5272c3_defconfig
@@ -1,3 +1,4 @@
+# CONFIG_MMU is not set
 CONFIG_EXPERIMENTAL=y
 CONFIG_LOG_BUF_SHIFT=14
 # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
@@ -33,6 +34,7 @@ CONFIG_INET=y
 # CONFIG_INET_LRO is not set
 # CONFIG_INET_DIAG is not set
 # CONFIG_IPV6 is not set
+# CONFIG_FW_LOADER is not set
 CONFIG_MTD=y
 CONFIG_MTD_PARTITIONS=y
 CONFIG_MTD_CHAR=y
diff --git a/arch/m68knommu/configs/m5275evb_defconfig b/arch/m68k/configs/m5275evb_defconfig
index f3dd74115a34..33c32aeca12b 100644
--- a/arch/m68knommu/configs/m5275evb_defconfig
+++ b/arch/m68k/configs/m5275evb_defconfig
@@ -1,3 +1,4 @@
+# CONFIG_MMU is not set
 CONFIG_EXPERIMENTAL=y
 CONFIG_LOG_BUF_SHIFT=14
 # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
@@ -36,6 +37,7 @@ CONFIG_INET=y
 # CONFIG_INET_LRO is not set
 # CONFIG_INET_DIAG is not set
 # CONFIG_IPV6 is not set
+# CONFIG_FW_LOADER is not set
 CONFIG_MTD=y
 CONFIG_MTD_PARTITIONS=y
 CONFIG_MTD_CHAR=y
diff --git a/arch/m68knommu/configs/m5307c3_defconfig b/arch/m68k/configs/m5307c3_defconfig
index bce0a20c3737..43795f41f7c7 100644
--- a/arch/m68knommu/configs/m5307c3_defconfig
+++ b/arch/m68k/configs/m5307c3_defconfig
@@ -1,3 +1,4 @@
+# CONFIG_MMU is not set
 CONFIG_EXPERIMENTAL=y
 CONFIG_LOG_BUF_SHIFT=14
 # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
@@ -35,6 +36,7 @@ CONFIG_INET=y
 # CONFIG_INET_LRO is not set
 # CONFIG_INET_DIAG is not set
 # CONFIG_IPV6 is not set
+# CONFIG_FW_LOADER is not set
 CONFIG_MTD=y
 CONFIG_MTD_PARTITIONS=y
 CONFIG_MTD_CHAR=y
diff --git a/arch/m68knommu/configs/m5407c3_defconfig b/arch/m68k/configs/m5407c3_defconfig
index 618cc32691f2..72746c57a571 100644
--- a/arch/m68knommu/configs/m5407c3_defconfig
+++ b/arch/m68k/configs/m5407c3_defconfig
@@ -1,3 +1,4 @@
+# CONFIG_MMU is not set
 CONFIG_EXPERIMENTAL=y
 CONFIG_LOG_BUF_SHIFT=14
 # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
@@ -35,6 +36,7 @@ CONFIG_INET=y
 # CONFIG_INET_LRO is not set
 # CONFIG_INET_DIAG is not set
 # CONFIG_IPV6 is not set
+# CONFIG_FW_LOADER is not set
 CONFIG_MTD=y
 CONFIG_MTD_PARTITIONS=y
 CONFIG_MTD_CHAR=y
diff --git a/arch/m68k/fpsp040/bindec.S b/arch/m68k/fpsp040/bindec.S
index 72f1159cb804..f2e795231046 100644
--- a/arch/m68k/fpsp040/bindec.S
+++ b/arch/m68k/fpsp040/bindec.S
@@ -609,7 +609,7 @@ do_fint:
 |      A6.  This test occurs only on the first pass.  If the
 |      result is exactly 10^LEN, decrement ILOG and divide
 |      the mantissa by 10.  The calculation of 10^LEN cannot
-|      be inexact, since all powers of ten upto 10^27 are exact
+|      be inexact, since all powers of ten up to 10^27 are exact
 |      in extended precision, so the use of a previous power-of-ten
 |      table will introduce no error.
 |
diff --git a/arch/m68k/ifpsp060/src/fpsp.S b/arch/m68k/ifpsp060/src/fpsp.S
index 26e85e2b7a5e..78cb60f5bb4d 100644
--- a/arch/m68k/ifpsp060/src/fpsp.S
+++ b/arch/m68k/ifpsp060/src/fpsp.S
@@ -11813,7 +11813,7 @@ fmul_unfl_ena:
 	bne.b		fmul_unfl_ena_sd	# no, sgl or dbl
 
 # if the rnd mode is anything but RZ, then we have to re-do the above
-# multiplication becuase we used RZ for all.
+# multiplication because we used RZ for all.
 	fmov.l		L_SCR3(%a6),%fpcr	# set FPCR
 
 fmul_unfl_ena_cont:
@@ -18095,7 +18095,7 @@ fscc_mem_op:
 
 	rts
 
-# addresing mode is post-increment. write the result byte. if the write
+# addressing mode is post-increment. write the result byte. if the write
 # fails then don't update the address register. if write passes then
 # call inc_areg() to update the address register.
 fscc_mem_inc:
@@ -20876,7 +20876,7 @@ dst_get_dupper:
 	swap		%d0			# d0 now in upper word
 	lsl.l		&0x4,%d0		# d0 in proper place for dbl prec exp
 	tst.b		FTEMP_EX(%a0)		# test sign
-	bpl.b		dst_get_dman		# if postive, go process mantissa
+	bpl.b		dst_get_dman		# if positive, go process mantissa
 	bset		&0x1f,%d0		# if negative, set sign
 dst_get_dman:
 	mov.l		FTEMP_HI(%a0),%d1	# get ms mantissa
@@ -22943,7 +22943,7 @@ tbl_ovfl_result:
 #	FP_SRC(a6) = packed operand now as a binary FP number		#
 #									#
 # ALGORITHM ***********************************************************	#
-#	Get the correct <ea> whihc is the value on the exception stack	#
+#	Get the correct <ea> which is the value on the exception stack	#
 # frame w/ maybe a correction factor if the <ea> is -(an) or (an)+.	#
 # Then, fetch the operand from memory. If the fetch fails, exit		#
 # through facc_in_x().							#
@@ -24096,7 +24096,7 @@ do_fint12:
 #      A6.  This test occurs only on the first pass.  If the
 #      result is exactly 10^LEN, decrement ILOG and divide
 #      the mantissa by 10.  The calculation of 10^LEN cannot
-#      be inexact, since all powers of ten upto 10^27 are exact
+#      be inexact, since all powers of ten up to 10^27 are exact
 #      in extended precision, so the use of a previous power-of-ten
 #      table will introduce no error.
 #
diff --git a/arch/m68k/ifpsp060/src/pfpsp.S b/arch/m68k/ifpsp060/src/pfpsp.S
index e71ba0ab013c..4aedef973cf6 100644
--- a/arch/m68k/ifpsp060/src/pfpsp.S
+++ b/arch/m68k/ifpsp060/src/pfpsp.S
@@ -7777,7 +7777,7 @@ dst_get_dupper:
 	swap		%d0			# d0 now in upper word
 	lsl.l		&0x4,%d0		# d0 in proper place for dbl prec exp
 	tst.b		FTEMP_EX(%a0)		# test sign
-	bpl.b		dst_get_dman		# if postive, go process mantissa
+	bpl.b		dst_get_dman		# if positive, go process mantissa
 	bset		&0x1f,%d0		# if negative, set sign
 dst_get_dman:
 	mov.l		FTEMP_HI(%a0),%d1	# get ms mantissa
@@ -8244,7 +8244,7 @@ fmul_unfl_ena:
 	bne.b		fmul_unfl_ena_sd	# no, sgl or dbl
 
 # if the rnd mode is anything but RZ, then we have to re-do the above
-# multiplication becuase we used RZ for all.
+# multiplication because we used RZ for all.
 	fmov.l		L_SCR3(%a6),%fpcr	# set FPCR
 
 fmul_unfl_ena_cont:
@@ -12903,7 +12903,7 @@ store_fpreg_7:
 #	FP_SRC(a6) = packed operand now as a binary FP number		#
 #									#
 # ALGORITHM ***********************************************************	#
-#	Get the correct <ea> whihc is the value on the exception stack	#
+#	Get the correct <ea> which is the value on the exception stack	#
 # frame w/ maybe a correction factor if the <ea> is -(an) or (an)+.	#
 # Then, fetch the operand from memory. If the fetch fails, exit		#
 # through facc_in_x().							#
@@ -14056,7 +14056,7 @@ do_fint12:
 #      A6.  This test occurs only on the first pass.  If the
 #      result is exactly 10^LEN, decrement ILOG and divide
 #      the mantissa by 10.  The calculation of 10^LEN cannot
-#      be inexact, since all powers of ten upto 10^27 are exact
+#      be inexact, since all powers of ten up to 10^27 are exact
 #      in extended precision, so the use of a previous power-of-ten
 #      table will introduce no error.
 #
diff --git a/arch/m68k/include/asm/atariints.h b/arch/m68k/include/asm/atariints.h
index f597892e43a0..656bbbf5a6ff 100644
--- a/arch/m68k/include/asm/atariints.h
+++ b/arch/m68k/include/asm/atariints.h
@@ -146,7 +146,7 @@ static inline void clear_mfp_bit( unsigned irq, int type )
 
 /*
  * {en,dis}able_irq have the usual semantics of temporary blocking the
- * interrupt, but not loosing requests that happen between disabling and
+ * interrupt, but not losing requests that happen between disabling and
  * enabling. This is done with the MFP mask registers.
  */
 
diff --git a/arch/m68k/include/asm/bootstd.h b/arch/m68k/include/asm/bootstd.h
index bdc1a4ac4fe9..e518f5a575b7 100644
--- a/arch/m68k/include/asm/bootstd.h
+++ b/arch/m68k/include/asm/bootstd.h
@@ -31,7 +31,7 @@
 #define __BN_flash_write_range		20
 
 /* Calling conventions compatible to (uC)linux/68k
- * We use simmilar macros to call into the bootloader as for uClinux
+ * We use similar macros to call into the bootloader as for uClinux
  */
 
 #define __bsc_return(type, res) \
diff --git a/arch/m68k/include/asm/commproc.h b/arch/m68k/include/asm/commproc.h
index edf5eb6c08d2..a73998528d26 100644
--- a/arch/m68k/include/asm/commproc.h
+++ b/arch/m68k/include/asm/commproc.h
@@ -88,7 +88,7 @@ typedef struct cpm_buf_desc {
 
 
 /* rx bd status/control bits */
-#define BD_SC_EMPTY	((ushort)0x8000)	/* Recieve is empty */
+#define BD_SC_EMPTY	((ushort)0x8000)	/* Receive is empty */
 #define BD_SC_WRAP	((ushort)0x2000)	/* Last buffer descriptor in table */
 #define BD_SC_INTRPT	((ushort)0x1000)	/* Interrupt on change */
 #define BD_SC_LAST	((ushort)0x0800)	/* Last buffer in frame OR control char */
@@ -96,7 +96,7 @@ typedef struct cpm_buf_desc {
 #define BD_SC_FIRST	((ushort)0x0400)	/* 1st buffer in an HDLC frame */
 #define BD_SC_ADDR	((ushort)0x0400)	/* 1st byte is a multidrop address */
 
-#define BD_SC_CM	((ushort)0x0200)	/* Continous mode */
+#define BD_SC_CM	((ushort)0x0200)	/* Continuous mode */
 #define BD_SC_ID	((ushort)0x0100)	/* Received too many idles */
 
 #define BD_SC_AM	((ushort)0x0080)	/* Multidrop address match */
diff --git a/arch/m68k/include/asm/delay_no.h b/arch/m68k/include/asm/delay_no.h
index 55cbd6294ab6..c3a0edc90f21 100644
--- a/arch/m68k/include/asm/delay_no.h
+++ b/arch/m68k/include/asm/delay_no.h
@@ -16,7 +16,7 @@ static inline void __delay(unsigned long loops)
 	 * long word alignment which is the faster version.
 	 * The 0x4a8e is of course a 'tstl %fp' instruction.  This is better
 	 * than using a NOP (0x4e71) instruction because it executes in one
-	 * cycle not three and doesn't allow for an arbitary delay waiting
+	 * cycle not three and doesn't allow for an arbitrary delay waiting
 	 * for bus cycles to finish.  Also fp/a6 isn't likely to cause a
 	 * stall waiting for the register to become valid if such is added
 	 * to the coldfire at some stage.
diff --git a/arch/m68k/include/asm/gpio.h b/arch/m68k/include/asm/gpio.h
index c64c7b74cf86..b2046839f4b2 100644
--- a/arch/m68k/include/asm/gpio.h
+++ b/arch/m68k/include/asm/gpio.h
@@ -31,7 +31,7 @@
  * GPIOs in a single control area, others have some GPIOs implemented in
  * different modules.
  *
- * This implementation attempts accomodate the differences while presenting
+ * This implementation attempts accommodate the differences while presenting
  * a generic interface that will optimize to as few instructions as possible.
  */
 #if defined(CONFIG_M5206) || defined(CONFIG_M5206e) || \
diff --git a/arch/m68k/include/asm/m520xsim.h b/arch/m68k/include/asm/m520xsim.h
index 55d5a4c5fe0b..b6bf2c518bac 100644
--- a/arch/m68k/include/asm/m520xsim.h
+++ b/arch/m68k/include/asm/m520xsim.h
@@ -157,7 +157,7 @@
 #define	MCFFEC_SIZE		0x800		/* Register set size */
 
 /*
- *  Reset Controll Unit.
+ *  Reset Control Unit.
  */
 #define	MCF_RCR			0xFC0A0000
 #define	MCF_RSR			0xFC0A0001
diff --git a/arch/m68k/include/asm/m523xsim.h b/arch/m68k/include/asm/m523xsim.h
index 8996df62ede4..6235921eca4e 100644
--- a/arch/m68k/include/asm/m523xsim.h
+++ b/arch/m68k/include/asm/m523xsim.h
@@ -48,7 +48,7 @@
 #define	MCFSIM_DMR1		(MCF_IPSBAR + 0x54)	/* Address mask 1 */
 
 /*
- *  Reset Controll Unit (relative to IPSBAR).
+ *  Reset Control Unit (relative to IPSBAR).
  */
 #define	MCF_RCR			0x110000
 #define	MCF_RSR			0x110001
diff --git a/arch/m68k/include/asm/m527xsim.h b/arch/m68k/include/asm/m527xsim.h
index 74855a66c050..758810ef91ec 100644
--- a/arch/m68k/include/asm/m527xsim.h
+++ b/arch/m68k/include/asm/m527xsim.h
@@ -283,7 +283,7 @@
 #endif
 
 /*
- *  Reset Controll Unit (relative to IPSBAR).
+ *  Reset Control Unit (relative to IPSBAR).
  */
 #define	MCF_RCR			0x110000
 #define	MCF_RSR			0x110001
diff --git a/arch/m68k/include/asm/m5307sim.h b/arch/m68k/include/asm/m5307sim.h
index 4c94c01f36c4..8f8609fcc9b8 100644
--- a/arch/m68k/include/asm/m5307sim.h
+++ b/arch/m68k/include/asm/m5307sim.h
@@ -29,7 +29,7 @@
 #define	MCFSIM_SWSR		0x03		/* SW Watchdog service (r/w) */
 #define	MCFSIM_PAR		0x04		/* Pin Assignment reg (r/w) */
 #define	MCFSIM_IRQPAR		0x06		/* Interrupt Assignment reg (r/w) */
-#define	MCFSIM_PLLCR		0x08		/* PLL Controll Reg*/
+#define	MCFSIM_PLLCR		0x08		/* PLL Control Reg*/
 #define	MCFSIM_MPARK		0x0C		/* BUS Master Control Reg*/
 #define	MCFSIM_IPR		0x40		/* Interrupt Pend reg (r/w) */
 #define	MCFSIM_IMR		0x44		/* Interrupt Mask reg (r/w) */
diff --git a/arch/m68k/include/asm/m5407sim.h b/arch/m68k/include/asm/m5407sim.h
index 762c58c89050..51e00b00b8a6 100644
--- a/arch/m68k/include/asm/m5407sim.h
+++ b/arch/m68k/include/asm/m5407sim.h
@@ -29,7 +29,7 @@
 #define	MCFSIM_SWSR		0x03		/* SW Watchdog service (r/w) */
 #define	MCFSIM_PAR		0x04		/* Pin Assignment reg (r/w) */
 #define	MCFSIM_IRQPAR		0x06		/* Interrupt Assignment reg (r/w) */
-#define	MCFSIM_PLLCR		0x08		/* PLL Controll Reg*/
+#define	MCFSIM_PLLCR		0x08		/* PLL Control Reg*/
 #define	MCFSIM_MPARK		0x0C		/* BUS Master Control Reg*/
 #define	MCFSIM_IPR		0x40		/* Interrupt Pend reg (r/w) */
 #define	MCFSIM_IMR		0x44		/* Interrupt Mask reg (r/w) */
diff --git a/arch/m68k/include/asm/m68360_quicc.h b/arch/m68k/include/asm/m68360_quicc.h
index 6d40f4d18e10..59414cc108d3 100644
--- a/arch/m68k/include/asm/m68360_quicc.h
+++ b/arch/m68k/include/asm/m68360_quicc.h
@@ -32,7 +32,7 @@ struct user_data {
     /* BASE + 0x000: user data memory */
     volatile unsigned char      udata_bd_ucode[0x400]; /*user data bd's Ucode*/
     volatile unsigned char      udata_bd[0x200];       /*user data Ucode     */
-    volatile unsigned char      ucode_ext[0x100];      /*Ucode Extention ram */
+    volatile unsigned char      ucode_ext[0x100];      /*Ucode Extension ram */
     volatile unsigned char      RESERVED1[0x500];      /* Reserved area      */
 };
 #else
diff --git a/arch/m68k/include/asm/mac_oss.h b/arch/m68k/include/asm/mac_oss.h
index 7221f7251934..3cf2b6ed685a 100644
--- a/arch/m68k/include/asm/mac_oss.h
+++ b/arch/m68k/include/asm/mac_oss.h
@@ -61,7 +61,7 @@
 /*
  * OSS Interrupt levels for various sub-systems
  *
- * This mapping is layed out with two things in mind: first, we try to keep
+ * This mapping is laid out with two things in mind: first, we try to keep
  * things on their own levels to avoid having to do double-dispatches. Second,
  * the levels match as closely as possible the alternate IRQ mapping mode (aka
  * "A/UX mode") available on some VIA machines.
diff --git a/arch/m68k/include/asm/mac_via.h b/arch/m68k/include/asm/mac_via.h
index 39afb438b656..a59665e1d41b 100644
--- a/arch/m68k/include/asm/mac_via.h
+++ b/arch/m68k/include/asm/mac_via.h
@@ -204,7 +204,7 @@
 #define vT2CL	0x1000  /* [VIA only] Timer two counter low. */
 #define vT2CH	0x1200  /* [VIA only] Timer two counter high. */
 #define vSR	0x1400  /* [VIA only] Shift register. */
-#define vACR	0x1600  /* [VIA only] Auxilary control register. */
+#define vACR	0x1600  /* [VIA only] Auxiliary control register. */
 #define vPCR	0x1800  /* [VIA only] Peripheral control register. */
                         /*            CHRP sez never ever to *write* this.
 			 *            Mac family says never to *change* this.
diff --git a/arch/m68k/include/asm/macintosh.h b/arch/m68k/include/asm/macintosh.h
index 50db3591ca15..c2a1c5eac1a6 100644
--- a/arch/m68k/include/asm/macintosh.h
+++ b/arch/m68k/include/asm/macintosh.h
@@ -14,7 +14,7 @@ extern void mac_init_IRQ(void);
 extern int mac_irq_pending(unsigned int);
 
 /*
- *	Floppy driver magic hook - probably shouldnt be here
+ *	Floppy driver magic hook - probably shouldn't be here
  */
 
 extern void via1_set_head(int);
diff --git a/arch/m68k/include/asm/mcftimer.h b/arch/m68k/include/asm/mcftimer.h
index 92b276fe8240..351c27237874 100644
--- a/arch/m68k/include/asm/mcftimer.h
+++ b/arch/m68k/include/asm/mcftimer.h
@@ -27,7 +27,7 @@
 
 /*
  *	Bit definitions for the Timer Mode Register (TMR).
- *	Register bit flags are common accross ColdFires.
+ *	Register bit flags are common across ColdFires.
  */
 #define	MCFTIMER_TMR_PREMASK	0xff00		/* Prescalar mask */
 #define	MCFTIMER_TMR_DISCE	0x0000		/* Disable capture */
diff --git a/arch/m68k/kernel/Makefile b/arch/m68k/kernel/Makefile
index 55d5d6b680a2..c482ebc9dd54 100644
--- a/arch/m68k/kernel/Makefile
+++ b/arch/m68k/kernel/Makefile
@@ -1,17 +1,5 @@
-#
-# Makefile for the linux kernel.
-#
-
-ifndef CONFIG_SUN3
-  extra-y := head.o
+ifdef CONFIG_MMU
+include arch/m68k/kernel/Makefile_mm
 else
-  extra-y := sun3-head.o
+include arch/m68k/kernel/Makefile_no
 endif
-extra-y	+= vmlinux.lds
-
-obj-y	:= entry.o process.o traps.o ints.o signal.o ptrace.o module.o \
-	   sys_m68k.o time.o setup.o m68k_ksyms.o devres.o
-
-devres-y = ../../../kernel/irq/devres.o
-
-obj-y$(CONFIG_MMU_SUN3) += dma.o	# no, it's not a typo
diff --git a/arch/m68k/kernel/Makefile_mm b/arch/m68k/kernel/Makefile_mm
new file mode 100644
index 000000000000..55d5d6b680a2
--- /dev/null
+++ b/arch/m68k/kernel/Makefile_mm
@@ -0,0 +1,17 @@
+#
+# Makefile for the linux kernel.
+#
+
+ifndef CONFIG_SUN3
+  extra-y := head.o
+else
+  extra-y := sun3-head.o
+endif
+extra-y	+= vmlinux.lds
+
+obj-y	:= entry.o process.o traps.o ints.o signal.o ptrace.o module.o \
+	   sys_m68k.o time.o setup.o m68k_ksyms.o devres.o
+
+devres-y = ../../../kernel/irq/devres.o
+
+obj-y$(CONFIG_MMU_SUN3) += dma.o	# no, it's not a typo
diff --git a/arch/m68knommu/kernel/Makefile b/arch/m68k/kernel/Makefile_no
index 37c3fc074c0a..37c3fc074c0a 100644
--- a/arch/m68knommu/kernel/Makefile
+++ b/arch/m68k/kernel/Makefile_no
diff --git a/arch/m68k/kernel/asm-offsets.c b/arch/m68k/kernel/asm-offsets.c
index 78e59b82ebc3..59a69a5c62f2 100644
--- a/arch/m68k/kernel/asm-offsets.c
+++ b/arch/m68k/kernel/asm-offsets.c
@@ -1,100 +1,5 @@
-/*
- * This program is used to generate definitions needed by
- * assembly language modules.
- *
- * We use the technique used in the OSF Mach kernel code:
- * generate asm statements containing #defines,
- * compile this file to assembler, and then extract the
- * #defines from the assembly-language output.
- */
-
-#define ASM_OFFSETS_C
-
-#include <linux/stddef.h>
-#include <linux/sched.h>
-#include <linux/kernel_stat.h>
-#include <linux/kbuild.h>
-#include <asm/bootinfo.h>
-#include <asm/irq.h>
-#include <asm/amigahw.h>
-#include <linux/font.h>
-
-int main(void)
-{
-	/* offsets into the task struct */
-	DEFINE(TASK_THREAD, offsetof(struct task_struct, thread));
-	DEFINE(TASK_INFO, offsetof(struct task_struct, thread.info));
-	DEFINE(TASK_MM, offsetof(struct task_struct, mm));
 #ifdef CONFIG_MMU
-	DEFINE(TASK_TINFO, offsetof(struct task_struct, thread.info));
+#include "asm-offsets_mm.c"
+#else
+#include "asm-offsets_no.c"
 #endif
-
-	/* offsets into the thread struct */
-	DEFINE(THREAD_KSP, offsetof(struct thread_struct, ksp));
-	DEFINE(THREAD_USP, offsetof(struct thread_struct, usp));
-	DEFINE(THREAD_SR, offsetof(struct thread_struct, sr));
-	DEFINE(THREAD_FS, offsetof(struct thread_struct, fs));
-	DEFINE(THREAD_CRP, offsetof(struct thread_struct, crp));
-	DEFINE(THREAD_ESP0, offsetof(struct thread_struct, esp0));
-	DEFINE(THREAD_FPREG, offsetof(struct thread_struct, fp));
-	DEFINE(THREAD_FPCNTL, offsetof(struct thread_struct, fpcntl));
-	DEFINE(THREAD_FPSTATE, offsetof(struct thread_struct, fpstate));
-
-	/* offsets into the thread_info struct */
-	DEFINE(TINFO_PREEMPT, offsetof(struct thread_info, preempt_count));
-	DEFINE(TINFO_FLAGS, offsetof(struct thread_info, flags));
-
-	/* offsets into the pt_regs */
-	DEFINE(PT_OFF_D0, offsetof(struct pt_regs, d0));
-	DEFINE(PT_OFF_ORIG_D0, offsetof(struct pt_regs, orig_d0));
-	DEFINE(PT_OFF_D1, offsetof(struct pt_regs, d1));
-	DEFINE(PT_OFF_D2, offsetof(struct pt_regs, d2));
-	DEFINE(PT_OFF_D3, offsetof(struct pt_regs, d3));
-	DEFINE(PT_OFF_D4, offsetof(struct pt_regs, d4));
-	DEFINE(PT_OFF_D5, offsetof(struct pt_regs, d5));
-	DEFINE(PT_OFF_A0, offsetof(struct pt_regs, a0));
-	DEFINE(PT_OFF_A1, offsetof(struct pt_regs, a1));
-	DEFINE(PT_OFF_A2, offsetof(struct pt_regs, a2));
-	DEFINE(PT_OFF_PC, offsetof(struct pt_regs, pc));
-	DEFINE(PT_OFF_SR, offsetof(struct pt_regs, sr));
-	/* bitfields are a bit difficult */
-	DEFINE(PT_OFF_FORMATVEC, offsetof(struct pt_regs, pc) + 4);
-
-	/* offsets into the irq_cpustat_t struct */
-	DEFINE(CPUSTAT_SOFTIRQ_PENDING, offsetof(irq_cpustat_t, __softirq_pending));
-
-	/* offsets into the bi_record struct */
-	DEFINE(BIR_TAG, offsetof(struct bi_record, tag));
-	DEFINE(BIR_SIZE, offsetof(struct bi_record, size));
-	DEFINE(BIR_DATA, offsetof(struct bi_record, data));
-
-	/* offsets into font_desc (drivers/video/console/font.h) */
-	DEFINE(FONT_DESC_IDX, offsetof(struct font_desc, idx));
-	DEFINE(FONT_DESC_NAME, offsetof(struct font_desc, name));
-	DEFINE(FONT_DESC_WIDTH, offsetof(struct font_desc, width));
-	DEFINE(FONT_DESC_HEIGHT, offsetof(struct font_desc, height));
-	DEFINE(FONT_DESC_DATA, offsetof(struct font_desc, data));
-	DEFINE(FONT_DESC_PREF, offsetof(struct font_desc, pref));
-
-	/* signal defines */
-	DEFINE(LSIGSEGV, SIGSEGV);
-	DEFINE(LSEGV_MAPERR, SEGV_MAPERR);
-	DEFINE(LSIGTRAP, SIGTRAP);
-	DEFINE(LTRAP_TRACE, TRAP_TRACE);
-
-	/* offsets into the custom struct */
-	DEFINE(CUSTOMBASE, &amiga_custom);
-	DEFINE(C_INTENAR, offsetof(struct CUSTOM, intenar));
-	DEFINE(C_INTREQR, offsetof(struct CUSTOM, intreqr));
-	DEFINE(C_INTENA, offsetof(struct CUSTOM, intena));
-	DEFINE(C_INTREQ, offsetof(struct CUSTOM, intreq));
-	DEFINE(C_SERDATR, offsetof(struct CUSTOM, serdatr));
-	DEFINE(C_SERDAT, offsetof(struct CUSTOM, serdat));
-	DEFINE(C_SERPER, offsetof(struct CUSTOM, serper));
-	DEFINE(CIAABASE, &ciaa);
-	DEFINE(CIABBASE, &ciab);
-	DEFINE(C_PRA, offsetof(struct CIA, pra));
-	DEFINE(ZTWOBASE, zTwoBase);
-
-	return 0;
-}
diff --git a/arch/m68k/kernel/asm-offsets_mm.c b/arch/m68k/kernel/asm-offsets_mm.c
new file mode 100644
index 000000000000..78e59b82ebc3
--- /dev/null
+++ b/arch/m68k/kernel/asm-offsets_mm.c
@@ -0,0 +1,100 @@
+/*
+ * This program is used to generate definitions needed by
+ * assembly language modules.
+ *
+ * We use the technique used in the OSF Mach kernel code:
+ * generate asm statements containing #defines,
+ * compile this file to assembler, and then extract the
+ * #defines from the assembly-language output.
+ */
+
+#define ASM_OFFSETS_C
+
+#include <linux/stddef.h>
+#include <linux/sched.h>
+#include <linux/kernel_stat.h>
+#include <linux/kbuild.h>
+#include <asm/bootinfo.h>
+#include <asm/irq.h>
+#include <asm/amigahw.h>
+#include <linux/font.h>
+
+int main(void)
+{
+	/* offsets into the task struct */
+	DEFINE(TASK_THREAD, offsetof(struct task_struct, thread));
+	DEFINE(TASK_INFO, offsetof(struct task_struct, thread.info));
+	DEFINE(TASK_MM, offsetof(struct task_struct, mm));
+#ifdef CONFIG_MMU
+	DEFINE(TASK_TINFO, offsetof(struct task_struct, thread.info));
+#endif
+
+	/* offsets into the thread struct */
+	DEFINE(THREAD_KSP, offsetof(struct thread_struct, ksp));
+	DEFINE(THREAD_USP, offsetof(struct thread_struct, usp));
+	DEFINE(THREAD_SR, offsetof(struct thread_struct, sr));
+	DEFINE(THREAD_FS, offsetof(struct thread_struct, fs));
+	DEFINE(THREAD_CRP, offsetof(struct thread_struct, crp));
+	DEFINE(THREAD_ESP0, offsetof(struct thread_struct, esp0));
+	DEFINE(THREAD_FPREG, offsetof(struct thread_struct, fp));
+	DEFINE(THREAD_FPCNTL, offsetof(struct thread_struct, fpcntl));
+	DEFINE(THREAD_FPSTATE, offsetof(struct thread_struct, fpstate));
+
+	/* offsets into the thread_info struct */
+	DEFINE(TINFO_PREEMPT, offsetof(struct thread_info, preempt_count));
+	DEFINE(TINFO_FLAGS, offsetof(struct thread_info, flags));
+
+	/* offsets into the pt_regs */
+	DEFINE(PT_OFF_D0, offsetof(struct pt_regs, d0));
+	DEFINE(PT_OFF_ORIG_D0, offsetof(struct pt_regs, orig_d0));
+	DEFINE(PT_OFF_D1, offsetof(struct pt_regs, d1));
+	DEFINE(PT_OFF_D2, offsetof(struct pt_regs, d2));
+	DEFINE(PT_OFF_D3, offsetof(struct pt_regs, d3));
+	DEFINE(PT_OFF_D4, offsetof(struct pt_regs, d4));
+	DEFINE(PT_OFF_D5, offsetof(struct pt_regs, d5));
+	DEFINE(PT_OFF_A0, offsetof(struct pt_regs, a0));
+	DEFINE(PT_OFF_A1, offsetof(struct pt_regs, a1));
+	DEFINE(PT_OFF_A2, offsetof(struct pt_regs, a2));
+	DEFINE(PT_OFF_PC, offsetof(struct pt_regs, pc));
+	DEFINE(PT_OFF_SR, offsetof(struct pt_regs, sr));
+	/* bitfields are a bit difficult */
+	DEFINE(PT_OFF_FORMATVEC, offsetof(struct pt_regs, pc) + 4);
+
+	/* offsets into the irq_cpustat_t struct */
+	DEFINE(CPUSTAT_SOFTIRQ_PENDING, offsetof(irq_cpustat_t, __softirq_pending));
+
+	/* offsets into the bi_record struct */
+	DEFINE(BIR_TAG, offsetof(struct bi_record, tag));
+	DEFINE(BIR_SIZE, offsetof(struct bi_record, size));
+	DEFINE(BIR_DATA, offsetof(struct bi_record, data));
+
+	/* offsets into font_desc (drivers/video/console/font.h) */
+	DEFINE(FONT_DESC_IDX, offsetof(struct font_desc, idx));
+	DEFINE(FONT_DESC_NAME, offsetof(struct font_desc, name));
+	DEFINE(FONT_DESC_WIDTH, offsetof(struct font_desc, width));
+	DEFINE(FONT_DESC_HEIGHT, offsetof(struct font_desc, height));
+	DEFINE(FONT_DESC_DATA, offsetof(struct font_desc, data));
+	DEFINE(FONT_DESC_PREF, offsetof(struct font_desc, pref));
+
+	/* signal defines */
+	DEFINE(LSIGSEGV, SIGSEGV);
+	DEFINE(LSEGV_MAPERR, SEGV_MAPERR);
+	DEFINE(LSIGTRAP, SIGTRAP);
+	DEFINE(LTRAP_TRACE, TRAP_TRACE);
+
+	/* offsets into the custom struct */
+	DEFINE(CUSTOMBASE, &amiga_custom);
+	DEFINE(C_INTENAR, offsetof(struct CUSTOM, intenar));
+	DEFINE(C_INTREQR, offsetof(struct CUSTOM, intreqr));
+	DEFINE(C_INTENA, offsetof(struct CUSTOM, intena));
+	DEFINE(C_INTREQ, offsetof(struct CUSTOM, intreq));
+	DEFINE(C_SERDATR, offsetof(struct CUSTOM, serdatr));
+	DEFINE(C_SERDAT, offsetof(struct CUSTOM, serdat));
+	DEFINE(C_SERPER, offsetof(struct CUSTOM, serper));
+	DEFINE(CIAABASE, &ciaa);
+	DEFINE(CIABBASE, &ciab);
+	DEFINE(C_PRA, offsetof(struct CIA, pra));
+	DEFINE(ZTWOBASE, zTwoBase);
+
+	return 0;
+}
diff --git a/arch/m68knommu/kernel/asm-offsets.c b/arch/m68k/kernel/asm-offsets_no.c
index ffe02f41ad46..ffe02f41ad46 100644
--- a/arch/m68knommu/kernel/asm-offsets.c
+++ b/arch/m68k/kernel/asm-offsets_no.c
diff --git a/arch/m68k/kernel/dma.c b/arch/m68k/kernel/dma.c
index 4bbb3c2a8880..90e8cb726c8c 100644
--- a/arch/m68k/kernel/dma.c
+++ b/arch/m68k/kernel/dma.c
@@ -1,130 +1,5 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file COPYING in the main directory of this archive
- * for more details.
- */
-
-#undef DEBUG
-
-#include <linux/dma-mapping.h>
-#include <linux/device.h>
-#include <linux/kernel.h>
-#include <linux/scatterlist.h>
-#include <linux/slab.h>
-#include <linux/vmalloc.h>
-
-#include <asm/pgalloc.h>
-
-void *dma_alloc_coherent(struct device *dev, size_t size,
-			 dma_addr_t *handle, gfp_t flag)
-{
-	struct page *page, **map;
-	pgprot_t pgprot;
-	void *addr;
-	int i, order;
-
-	pr_debug("dma_alloc_coherent: %d,%x\n", size, flag);
-
-	size = PAGE_ALIGN(size);
-	order = get_order(size);
-
-	page = alloc_pages(flag, order);
-	if (!page)
-		return NULL;
-
-	*handle = page_to_phys(page);
-	map = kmalloc(sizeof(struct page *) << order, flag & ~__GFP_DMA);
-	if (!map) {
-		__free_pages(page, order);
-		return NULL;
-	}
-	split_page(page, order);
-
-	order = 1 << order;
-	size >>= PAGE_SHIFT;
-	map[0] = page;
-	for (i = 1; i < size; i++)
-		map[i] = page + i;
-	for (; i < order; i++)
-		__free_page(page + i);
-	pgprot = __pgprot(_PAGE_PRESENT | _PAGE_ACCESSED | _PAGE_DIRTY);
-	if (CPU_IS_040_OR_060)
-		pgprot_val(pgprot) |= _PAGE_GLOBAL040 | _PAGE_NOCACHE_S;
-	else
-		pgprot_val(pgprot) |= _PAGE_NOCACHE030;
-	addr = vmap(map, size, VM_MAP, pgprot);
-	kfree(map);
-
-	return addr;
-}
-EXPORT_SYMBOL(dma_alloc_coherent);
-
-void dma_free_coherent(struct device *dev, size_t size,
-		       void *addr, dma_addr_t handle)
-{
-	pr_debug("dma_free_coherent: %p, %x\n", addr, handle);
-	vfree(addr);
-}
-EXPORT_SYMBOL(dma_free_coherent);
-
-void dma_sync_single_for_device(struct device *dev, dma_addr_t handle,
-				size_t size, enum dma_data_direction dir)
-{
-	switch (dir) {
-	case DMA_TO_DEVICE:
-		cache_push(handle, size);
-		break;
-	case DMA_FROM_DEVICE:
-		cache_clear(handle, size);
-		break;
-	default:
-		if (printk_ratelimit())
-			printk("dma_sync_single_for_device: unsupported dir %u\n", dir);
-		break;
-	}
-}
-EXPORT_SYMBOL(dma_sync_single_for_device);
-
-void dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, int nents,
-			    enum dma_data_direction dir)
-{
-	int i;
-
-	for (i = 0; i < nents; sg++, i++)
-		dma_sync_single_for_device(dev, sg->dma_address, sg->length, dir);
-}
-EXPORT_SYMBOL(dma_sync_sg_for_device);
-
-dma_addr_t dma_map_single(struct device *dev, void *addr, size_t size,
-			  enum dma_data_direction dir)
-{
-	dma_addr_t handle = virt_to_bus(addr);
-
-	dma_sync_single_for_device(dev, handle, size, dir);
-	return handle;
-}
-EXPORT_SYMBOL(dma_map_single);
-
-dma_addr_t dma_map_page(struct device *dev, struct page *page,
-			unsigned long offset, size_t size,
-			enum dma_data_direction dir)
-{
-	dma_addr_t handle = page_to_phys(page) + offset;
-
-	dma_sync_single_for_device(dev, handle, size, dir);
-	return handle;
-}
-EXPORT_SYMBOL(dma_map_page);
-
-int dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
-	       enum dma_data_direction dir)
-{
-	int i;
-
-	for (i = 0; i < nents; sg++, i++) {
-		sg->dma_address = sg_phys(sg);
-		dma_sync_single_for_device(dev, sg->dma_address, sg->length, dir);
-	}
-	return nents;
-}
-EXPORT_SYMBOL(dma_map_sg);
+#ifdef CONFIG_MMU
+#include "dma_mm.c"
+#else
+#include "dma_no.c"
+#endif
diff --git a/arch/m68k/kernel/dma_mm.c b/arch/m68k/kernel/dma_mm.c
new file mode 100644
index 000000000000..4bbb3c2a8880
--- /dev/null
+++ b/arch/m68k/kernel/dma_mm.c
@@ -0,0 +1,130 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file COPYING in the main directory of this archive
+ * for more details.
+ */
+
+#undef DEBUG
+
+#include <linux/dma-mapping.h>
+#include <linux/device.h>
+#include <linux/kernel.h>
+#include <linux/scatterlist.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+
+#include <asm/pgalloc.h>
+
+void *dma_alloc_coherent(struct device *dev, size_t size,
+			 dma_addr_t *handle, gfp_t flag)
+{
+	struct page *page, **map;
+	pgprot_t pgprot;
+	void *addr;
+	int i, order;
+
+	pr_debug("dma_alloc_coherent: %d,%x\n", size, flag);
+
+	size = PAGE_ALIGN(size);
+	order = get_order(size);
+
+	page = alloc_pages(flag, order);
+	if (!page)
+		return NULL;
+
+	*handle = page_to_phys(page);
+	map = kmalloc(sizeof(struct page *) << order, flag & ~__GFP_DMA);
+	if (!map) {
+		__free_pages(page, order);
+		return NULL;
+	}
+	split_page(page, order);
+
+	order = 1 << order;
+	size >>= PAGE_SHIFT;
+	map[0] = page;
+	for (i = 1; i < size; i++)
+		map[i] = page + i;
+	for (; i < order; i++)
+		__free_page(page + i);
+	pgprot = __pgprot(_PAGE_PRESENT | _PAGE_ACCESSED | _PAGE_DIRTY);
+	if (CPU_IS_040_OR_060)
+		pgprot_val(pgprot) |= _PAGE_GLOBAL040 | _PAGE_NOCACHE_S;
+	else
+		pgprot_val(pgprot) |= _PAGE_NOCACHE030;
+	addr = vmap(map, size, VM_MAP, pgprot);
+	kfree(map);
+
+	return addr;
+}
+EXPORT_SYMBOL(dma_alloc_coherent);
+
+void dma_free_coherent(struct device *dev, size_t size,
+		       void *addr, dma_addr_t handle)
+{
+	pr_debug("dma_free_coherent: %p, %x\n", addr, handle);
+	vfree(addr);
+}
+EXPORT_SYMBOL(dma_free_coherent);
+
+void dma_sync_single_for_device(struct device *dev, dma_addr_t handle,
+				size_t size, enum dma_data_direction dir)
+{
+	switch (dir) {
+	case DMA_TO_DEVICE:
+		cache_push(handle, size);
+		break;
+	case DMA_FROM_DEVICE:
+		cache_clear(handle, size);
+		break;
+	default:
+		if (printk_ratelimit())
+			printk("dma_sync_single_for_device: unsupported dir %u\n", dir);
+		break;
+	}
+}
+EXPORT_SYMBOL(dma_sync_single_for_device);
+
+void dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, int nents,
+			    enum dma_data_direction dir)
+{
+	int i;
+
+	for (i = 0; i < nents; sg++, i++)
+		dma_sync_single_for_device(dev, sg->dma_address, sg->length, dir);
+}
+EXPORT_SYMBOL(dma_sync_sg_for_device);
+
+dma_addr_t dma_map_single(struct device *dev, void *addr, size_t size,
+			  enum dma_data_direction dir)
+{
+	dma_addr_t handle = virt_to_bus(addr);
+
+	dma_sync_single_for_device(dev, handle, size, dir);
+	return handle;
+}
+EXPORT_SYMBOL(dma_map_single);
+
+dma_addr_t dma_map_page(struct device *dev, struct page *page,
+			unsigned long offset, size_t size,
+			enum dma_data_direction dir)
+{
+	dma_addr_t handle = page_to_phys(page) + offset;
+
+	dma_sync_single_for_device(dev, handle, size, dir);
+	return handle;
+}
+EXPORT_SYMBOL(dma_map_page);
+
+int dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
+	       enum dma_data_direction dir)
+{
+	int i;
+
+	for (i = 0; i < nents; sg++, i++) {
+		sg->dma_address = sg_phys(sg);
+		dma_sync_single_for_device(dev, sg->dma_address, sg->length, dir);
+	}
+	return nents;
+}
+EXPORT_SYMBOL(dma_map_sg);
diff --git a/arch/m68knommu/kernel/dma.c b/arch/m68k/kernel/dma_no.c
index fc61541aeb71..fc61541aeb71 100644
--- a/arch/m68knommu/kernel/dma.c
+++ b/arch/m68k/kernel/dma_no.c
diff --git a/arch/m68k/kernel/entry.S b/arch/m68k/kernel/entry.S
index 1559dea36e55..081cf96f243b 100644
--- a/arch/m68k/kernel/entry.S
+++ b/arch/m68k/kernel/entry.S
@@ -1,753 +1,5 @@
-/* -*- mode: asm -*-
- *
- *  linux/arch/m68k/kernel/entry.S
- *
- *  Copyright (C) 1991, 1992  Linus Torvalds
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file README.legal in the main directory of this archive
- * for more details.
- *
- * Linux/m68k support by Hamish Macdonald
- *
- * 68060 fixes by Jesper Skov
- *
- */
-
-/*
- * entry.S  contains the system-call and fault low-level handling routines.
- * This also contains the timer-interrupt handler, as well as all interrupts
- * and faults that can result in a task-switch.
- *
- * NOTE: This code handles signal-recognition, which happens every time
- * after a timer-interrupt and after each system call.
- *
- */
-
-/*
- * 12/03/96 Jes: Currently we only support m68k single-cpu systems, so
- *               all pointers that used to be 'current' are now entry
- *               number 0 in the 'current_set' list.
- *
- *  6/05/00 RZ:	 addedd writeback completion after return from sighandler
- *		 for 68040
- */
-
-#include <linux/linkage.h>
-#include <asm/entry.h>
-#include <asm/errno.h>
-#include <asm/setup.h>
-#include <asm/segment.h>
-#include <asm/traps.h>
-#include <asm/unistd.h>
-
-#include <asm/asm-offsets.h>
-
-.globl system_call, buserr, trap, resume
-.globl sys_call_table
-.globl sys_fork, sys_clone, sys_vfork
-.globl ret_from_interrupt, bad_interrupt
-.globl auto_irqhandler_fixup
-.globl user_irqvec_fixup, user_irqhandler_fixup
-
-.text
-ENTRY(buserr)
-	SAVE_ALL_INT
-	GET_CURRENT(%d0)
-	movel	%sp,%sp@-		| stack frame pointer argument
-	bsrl	buserr_c
-	addql	#4,%sp
-	jra	.Lret_from_exception
-
-ENTRY(trap)
-	SAVE_ALL_INT
-	GET_CURRENT(%d0)
-	movel	%sp,%sp@-		| stack frame pointer argument
-	bsrl	trap_c
-	addql	#4,%sp
-	jra	.Lret_from_exception
-
-	| After a fork we jump here directly from resume,
-	| so that %d1 contains the previous task
-	| schedule_tail now used regardless of CONFIG_SMP
-ENTRY(ret_from_fork)
-	movel	%d1,%sp@-
-	jsr	schedule_tail
-	addql	#4,%sp
-	jra	.Lret_from_exception
-
-do_trace_entry:
-	movel	#-ENOSYS,%sp@(PT_OFF_D0)| needed for strace
-	subql	#4,%sp
-	SAVE_SWITCH_STACK
-	jbsr	syscall_trace
-	RESTORE_SWITCH_STACK
-	addql	#4,%sp
-	movel	%sp@(PT_OFF_ORIG_D0),%d0
-	cmpl	#NR_syscalls,%d0
-	jcs	syscall
-badsys:
-	movel	#-ENOSYS,%sp@(PT_OFF_D0)
-	jra	ret_from_syscall
-
-do_trace_exit:
-	subql	#4,%sp
-	SAVE_SWITCH_STACK
-	jbsr	syscall_trace
-	RESTORE_SWITCH_STACK
-	addql	#4,%sp
-	jra	.Lret_from_exception
-
-ENTRY(ret_from_signal)
-	tstb	%curptr@(TASK_INFO+TINFO_FLAGS+2)
-	jge	1f
-	jbsr	syscall_trace
-1:	RESTORE_SWITCH_STACK
-	addql	#4,%sp
-/* on 68040 complete pending writebacks if any */
-#ifdef CONFIG_M68040
-	bfextu	%sp@(PT_OFF_FORMATVEC){#0,#4},%d0
-	subql	#7,%d0				| bus error frame ?
-	jbne	1f
-	movel	%sp,%sp@-
-	jbsr	berr_040cleanup
-	addql	#4,%sp
-1:
+#ifdef CONFIG_MMU
+#include "entry_mm.S"
+#else
+#include "entry_no.S"
 #endif
-	jra	.Lret_from_exception
-
-ENTRY(system_call)
-	SAVE_ALL_SYS
-
-	GET_CURRENT(%d1)
-	| save top of frame
-	movel	%sp,%curptr@(TASK_THREAD+THREAD_ESP0)
-
-	| syscall trace?
-	tstb	%curptr@(TASK_INFO+TINFO_FLAGS+2)
-	jmi	do_trace_entry
-	cmpl	#NR_syscalls,%d0
-	jcc	badsys
-syscall:
-	jbsr	@(sys_call_table,%d0:l:4)@(0)
-	movel	%d0,%sp@(PT_OFF_D0)	| save the return value
-ret_from_syscall:
-	|oriw	#0x0700,%sr
-	movew	%curptr@(TASK_INFO+TINFO_FLAGS+2),%d0
-	jne	syscall_exit_work
-1:	RESTORE_ALL
-
-syscall_exit_work:
-	btst	#5,%sp@(PT_OFF_SR)	| check if returning to kernel
-	bnes	1b			| if so, skip resched, signals
-	lslw	#1,%d0
-	jcs	do_trace_exit
-	jmi	do_delayed_trace
-	lslw	#8,%d0
-	jmi	do_signal_return
-	pea	resume_userspace
-	jra	schedule
-
-
-ENTRY(ret_from_exception)
-.Lret_from_exception:
-	btst	#5,%sp@(PT_OFF_SR)	| check if returning to kernel
-	bnes	1f			| if so, skip resched, signals
-	| only allow interrupts when we are really the last one on the
-	| kernel stack, otherwise stack overflow can occur during
-	| heavy interrupt load
-	andw	#ALLOWINT,%sr
-
-resume_userspace:
-	moveb	%curptr@(TASK_INFO+TINFO_FLAGS+3),%d0
-	jne	exit_work
-1:	RESTORE_ALL
-
-exit_work:
-	| save top of frame
-	movel	%sp,%curptr@(TASK_THREAD+THREAD_ESP0)
-	lslb	#1,%d0
-	jmi	do_signal_return
-	pea	resume_userspace
-	jra	schedule
-
-
-do_signal_return:
-	|andw	#ALLOWINT,%sr
-	subql	#4,%sp			| dummy return address
-	SAVE_SWITCH_STACK
-	pea	%sp@(SWITCH_STACK_SIZE)
-	bsrl	do_signal
-	addql	#4,%sp
-	RESTORE_SWITCH_STACK
-	addql	#4,%sp
-	jbra	resume_userspace
-
-do_delayed_trace:
-	bclr	#7,%sp@(PT_OFF_SR)	| clear trace bit in SR
-	pea	1			| send SIGTRAP
-	movel	%curptr,%sp@-
-	pea	LSIGTRAP
-	jbsr	send_sig
-	addql	#8,%sp
-	addql	#4,%sp
-	jbra	resume_userspace
-
-
-/* This is the main interrupt handler for autovector interrupts */
-
-ENTRY(auto_inthandler)
-	SAVE_ALL_INT
-	GET_CURRENT(%d0)
-	addqb	#1,%curptr@(TASK_INFO+TINFO_PREEMPT+1)
-					|  put exception # in d0
-	bfextu	%sp@(PT_OFF_FORMATVEC){#4,#10},%d0
-	subw	#VEC_SPUR,%d0
-
-	movel	%sp,%sp@-
-	movel	%d0,%sp@-		|  put vector # on stack
-auto_irqhandler_fixup = . + 2
-	jsr	__m68k_handle_int	|  process the IRQ
-	addql	#8,%sp			|  pop parameters off stack
-
-ret_from_interrupt:
-	subqb	#1,%curptr@(TASK_INFO+TINFO_PREEMPT+1)
-	jeq	ret_from_last_interrupt
-2:	RESTORE_ALL
-
-	ALIGN
-ret_from_last_interrupt:
-	moveq	#(~ALLOWINT>>8)&0xff,%d0
-	andb	%sp@(PT_OFF_SR),%d0
-	jne	2b
-
-	/* check if we need to do software interrupts */
-	tstl	irq_stat+CPUSTAT_SOFTIRQ_PENDING
-	jeq	.Lret_from_exception
-	pea	ret_from_exception
-	jra	do_softirq
-
-/* Handler for user defined interrupt vectors */
-
-ENTRY(user_inthandler)
-	SAVE_ALL_INT
-	GET_CURRENT(%d0)
-	addqb	#1,%curptr@(TASK_INFO+TINFO_PREEMPT+1)
-					|  put exception # in d0
-	bfextu	%sp@(PT_OFF_FORMATVEC){#4,#10},%d0
-user_irqvec_fixup = . + 2
-	subw	#VEC_USER,%d0
-
-	movel	%sp,%sp@-
-	movel	%d0,%sp@-		|  put vector # on stack
-user_irqhandler_fixup = . + 2
-	jsr	__m68k_handle_int	|  process the IRQ
-	addql	#8,%sp			|  pop parameters off stack
-
-	subqb	#1,%curptr@(TASK_INFO+TINFO_PREEMPT+1)
-	jeq	ret_from_last_interrupt
-	RESTORE_ALL
-
-/* Handler for uninitialized and spurious interrupts */
-
-ENTRY(bad_inthandler)
-	SAVE_ALL_INT
-	GET_CURRENT(%d0)
-	addqb	#1,%curptr@(TASK_INFO+TINFO_PREEMPT+1)
-
-	movel	%sp,%sp@-
-	jsr	handle_badint
-	addql	#4,%sp
-
-	subqb	#1,%curptr@(TASK_INFO+TINFO_PREEMPT+1)
-	jeq	ret_from_last_interrupt
-	RESTORE_ALL
-
-
-ENTRY(sys_fork)
-	SAVE_SWITCH_STACK
-	pea	%sp@(SWITCH_STACK_SIZE)
-	jbsr	m68k_fork
-	addql	#4,%sp
-	RESTORE_SWITCH_STACK
-	rts
-
-ENTRY(sys_clone)
-	SAVE_SWITCH_STACK
-	pea	%sp@(SWITCH_STACK_SIZE)
-	jbsr	m68k_clone
-	addql	#4,%sp
-	RESTORE_SWITCH_STACK
-	rts
-
-ENTRY(sys_vfork)
-	SAVE_SWITCH_STACK
-	pea	%sp@(SWITCH_STACK_SIZE)
-	jbsr	m68k_vfork
-	addql	#4,%sp
-	RESTORE_SWITCH_STACK
-	rts
-
-ENTRY(sys_sigreturn)
-	SAVE_SWITCH_STACK
-	jbsr	do_sigreturn
-	RESTORE_SWITCH_STACK
-	rts
-
-ENTRY(sys_rt_sigreturn)
-	SAVE_SWITCH_STACK
-	jbsr	do_rt_sigreturn
-	RESTORE_SWITCH_STACK
-	rts
-
-resume:
-	/*
-	 * Beware - when entering resume, prev (the current task) is
-	 * in a0, next (the new task) is in a1,so don't change these
-	 * registers until their contents are no longer needed.
-	 */
-
-	/* save sr */
-	movew	%sr,%a0@(TASK_THREAD+THREAD_SR)
-
-	/* save fs (sfc,%dfc) (may be pointing to kernel memory) */
-	movec	%sfc,%d0
-	movew	%d0,%a0@(TASK_THREAD+THREAD_FS)
-
-	/* save usp */
-	/* it is better to use a movel here instead of a movew 8*) */
-	movec	%usp,%d0
-	movel	%d0,%a0@(TASK_THREAD+THREAD_USP)
-
-	/* save non-scratch registers on stack */
-	SAVE_SWITCH_STACK
-
-	/* save current kernel stack pointer */
-	movel	%sp,%a0@(TASK_THREAD+THREAD_KSP)
-
-	/* save floating point context */
-#ifndef CONFIG_M68KFPU_EMU_ONLY
-#ifdef CONFIG_M68KFPU_EMU
-	tstl	m68k_fputype
-	jeq	3f
-#endif
-	fsave	%a0@(TASK_THREAD+THREAD_FPSTATE)
-
-#if defined(CONFIG_M68060)
-#if !defined(CPU_M68060_ONLY)
-	btst	#3,m68k_cputype+3
-	beqs	1f
-#endif
-	/* The 060 FPU keeps status in bits 15-8 of the first longword */
-	tstb	%a0@(TASK_THREAD+THREAD_FPSTATE+2)
-	jeq	3f
-#if !defined(CPU_M68060_ONLY)
-	jra	2f
-#endif
-#endif /* CONFIG_M68060 */
-#if !defined(CPU_M68060_ONLY)
-1:	tstb	%a0@(TASK_THREAD+THREAD_FPSTATE)
-	jeq	3f
-#endif
-2:	fmovemx	%fp0-%fp7,%a0@(TASK_THREAD+THREAD_FPREG)
-	fmoveml	%fpcr/%fpsr/%fpiar,%a0@(TASK_THREAD+THREAD_FPCNTL)
-3:
-#endif	/* CONFIG_M68KFPU_EMU_ONLY */
-	/* Return previous task in %d1 */
-	movel	%curptr,%d1
-
-	/* switch to new task (a1 contains new task) */
-	movel	%a1,%curptr
-
-	/* restore floating point context */
-#ifndef CONFIG_M68KFPU_EMU_ONLY
-#ifdef CONFIG_M68KFPU_EMU
-	tstl	m68k_fputype
-	jeq	4f
-#endif
-#if defined(CONFIG_M68060)
-#if !defined(CPU_M68060_ONLY)
-	btst	#3,m68k_cputype+3
-	beqs	1f
-#endif
-	/* The 060 FPU keeps status in bits 15-8 of the first longword */
-	tstb	%a1@(TASK_THREAD+THREAD_FPSTATE+2)
-	jeq	3f
-#if !defined(CPU_M68060_ONLY)
-	jra	2f
-#endif
-#endif /* CONFIG_M68060 */
-#if !defined(CPU_M68060_ONLY)
-1:	tstb	%a1@(TASK_THREAD+THREAD_FPSTATE)
-	jeq	3f
-#endif
-2:	fmovemx	%a1@(TASK_THREAD+THREAD_FPREG),%fp0-%fp7
-	fmoveml	%a1@(TASK_THREAD+THREAD_FPCNTL),%fpcr/%fpsr/%fpiar
-3:	frestore %a1@(TASK_THREAD+THREAD_FPSTATE)
-4:
-#endif	/* CONFIG_M68KFPU_EMU_ONLY */
-
-	/* restore the kernel stack pointer */
-	movel	%a1@(TASK_THREAD+THREAD_KSP),%sp
-
-	/* restore non-scratch registers */
-	RESTORE_SWITCH_STACK
-
-	/* restore user stack pointer */
-	movel	%a1@(TASK_THREAD+THREAD_USP),%a0
-	movel	%a0,%usp
-
-	/* restore fs (sfc,%dfc) */
-	movew	%a1@(TASK_THREAD+THREAD_FS),%a0
-	movec	%a0,%sfc
-	movec	%a0,%dfc
-
-	/* restore status register */
-	movew	%a1@(TASK_THREAD+THREAD_SR),%sr
-
-	rts
-
-.data
-ALIGN
-sys_call_table:
-	.long sys_restart_syscall	/* 0 - old "setup()" system call, used for restarting */
-	.long sys_exit
-	.long sys_fork
-	.long sys_read
-	.long sys_write
-	.long sys_open		/* 5 */
-	.long sys_close
-	.long sys_waitpid
-	.long sys_creat
-	.long sys_link
-	.long sys_unlink	/* 10 */
-	.long sys_execve
-	.long sys_chdir
-	.long sys_time
-	.long sys_mknod
-	.long sys_chmod		/* 15 */
-	.long sys_chown16
-	.long sys_ni_syscall				/* old break syscall holder */
-	.long sys_stat
-	.long sys_lseek
-	.long sys_getpid	/* 20 */
-	.long sys_mount
-	.long sys_oldumount
-	.long sys_setuid16
-	.long sys_getuid16
-	.long sys_stime		/* 25 */
-	.long sys_ptrace
-	.long sys_alarm
-	.long sys_fstat
-	.long sys_pause
-	.long sys_utime		/* 30 */
-	.long sys_ni_syscall				/* old stty syscall holder */
-	.long sys_ni_syscall				/* old gtty syscall holder */
-	.long sys_access
-	.long sys_nice
-	.long sys_ni_syscall	/* 35 */	/* old ftime syscall holder */
-	.long sys_sync
-	.long sys_kill
-	.long sys_rename
-	.long sys_mkdir
-	.long sys_rmdir		/* 40 */
-	.long sys_dup
-	.long sys_pipe
-	.long sys_times
-	.long sys_ni_syscall				/* old prof syscall holder */
-	.long sys_brk		/* 45 */
-	.long sys_setgid16
-	.long sys_getgid16
-	.long sys_signal
-	.long sys_geteuid16
-	.long sys_getegid16	/* 50 */
-	.long sys_acct
-	.long sys_umount				/* recycled never used phys() */
-	.long sys_ni_syscall				/* old lock syscall holder */
-	.long sys_ioctl
-	.long sys_fcntl		/* 55 */
-	.long sys_ni_syscall				/* old mpx syscall holder */
-	.long sys_setpgid
-	.long sys_ni_syscall				/* old ulimit syscall holder */
-	.long sys_ni_syscall
-	.long sys_umask		/* 60 */
-	.long sys_chroot
-	.long sys_ustat
-	.long sys_dup2
-	.long sys_getppid
-	.long sys_getpgrp	/* 65 */
-	.long sys_setsid
-	.long sys_sigaction
-	.long sys_sgetmask
-	.long sys_ssetmask
-	.long sys_setreuid16	/* 70 */
-	.long sys_setregid16
-	.long sys_sigsuspend
-	.long sys_sigpending
-	.long sys_sethostname
-	.long sys_setrlimit	/* 75 */
-	.long sys_old_getrlimit
-	.long sys_getrusage
-	.long sys_gettimeofday
-	.long sys_settimeofday
-	.long sys_getgroups16	/* 80 */
-	.long sys_setgroups16
-	.long sys_old_select
-	.long sys_symlink
-	.long sys_lstat
-	.long sys_readlink	/* 85 */
-	.long sys_uselib
-	.long sys_swapon
-	.long sys_reboot
-	.long sys_old_readdir
-	.long sys_old_mmap	/* 90 */
-	.long sys_munmap
-	.long sys_truncate
-	.long sys_ftruncate
-	.long sys_fchmod
-	.long sys_fchown16	/* 95 */
-	.long sys_getpriority
-	.long sys_setpriority
-	.long sys_ni_syscall				/* old profil syscall holder */
-	.long sys_statfs
-	.long sys_fstatfs	/* 100 */
-	.long sys_ni_syscall				/* ioperm for i386 */
-	.long sys_socketcall
-	.long sys_syslog
-	.long sys_setitimer
-	.long sys_getitimer	/* 105 */
-	.long sys_newstat
-	.long sys_newlstat
-	.long sys_newfstat
-	.long sys_ni_syscall
-	.long sys_ni_syscall	/* 110 */	/* iopl for i386 */
-	.long sys_vhangup
-	.long sys_ni_syscall				/* obsolete idle() syscall */
-	.long sys_ni_syscall				/* vm86old for i386 */
-	.long sys_wait4
-	.long sys_swapoff	/* 115 */
-	.long sys_sysinfo
-	.long sys_ipc
-	.long sys_fsync
-	.long sys_sigreturn
-	.long sys_clone		/* 120 */
-	.long sys_setdomainname
-	.long sys_newuname
-	.long sys_cacheflush				/* modify_ldt for i386 */
-	.long sys_adjtimex
-	.long sys_mprotect	/* 125 */
-	.long sys_sigprocmask
-	.long sys_ni_syscall		/* old "create_module" */
-	.long sys_init_module
-	.long sys_delete_module
-	.long sys_ni_syscall	/* 130 - old "get_kernel_syms" */
-	.long sys_quotactl
-	.long sys_getpgid
-	.long sys_fchdir
-	.long sys_bdflush
-	.long sys_sysfs		/* 135 */
-	.long sys_personality
-	.long sys_ni_syscall				/* for afs_syscall */
-	.long sys_setfsuid16
-	.long sys_setfsgid16
-	.long sys_llseek	/* 140 */
-	.long sys_getdents
-	.long sys_select
-	.long sys_flock
-	.long sys_msync
-	.long sys_readv		/* 145 */
-	.long sys_writev
-	.long sys_getsid
-	.long sys_fdatasync
-	.long sys_sysctl
-	.long sys_mlock		/* 150 */
-	.long sys_munlock
-	.long sys_mlockall
-	.long sys_munlockall
-	.long sys_sched_setparam
-	.long sys_sched_getparam	/* 155 */
-	.long sys_sched_setscheduler
-	.long sys_sched_getscheduler
-	.long sys_sched_yield
-	.long sys_sched_get_priority_max
-	.long sys_sched_get_priority_min  /* 160 */
-	.long sys_sched_rr_get_interval
-	.long sys_nanosleep
-	.long sys_mremap
-	.long sys_setresuid16
-	.long sys_getresuid16	/* 165 */
-	.long sys_getpagesize
-	.long sys_ni_syscall		/* old sys_query_module */
-	.long sys_poll
-	.long sys_nfsservctl
-	.long sys_setresgid16	/* 170 */
-	.long sys_getresgid16
-	.long sys_prctl
-	.long sys_rt_sigreturn
-	.long sys_rt_sigaction
-	.long sys_rt_sigprocmask	/* 175 */
-	.long sys_rt_sigpending
-	.long sys_rt_sigtimedwait
-	.long sys_rt_sigqueueinfo
-	.long sys_rt_sigsuspend
-	.long sys_pread64	/* 180 */
-	.long sys_pwrite64
-	.long sys_lchown16;
-	.long sys_getcwd
-	.long sys_capget
-	.long sys_capset	/* 185 */
-	.long sys_sigaltstack
-	.long sys_sendfile
-	.long sys_ni_syscall				/* streams1 */
-	.long sys_ni_syscall				/* streams2 */
-	.long sys_vfork		/* 190 */
-	.long sys_getrlimit
-	.long sys_mmap2
-	.long sys_truncate64
-	.long sys_ftruncate64
-	.long sys_stat64	/* 195 */
-	.long sys_lstat64
-	.long sys_fstat64
-	.long sys_chown
-	.long sys_getuid
-	.long sys_getgid	/* 200 */
-	.long sys_geteuid
-	.long sys_getegid
-	.long sys_setreuid
-	.long sys_setregid
-	.long sys_getgroups	/* 205 */
-	.long sys_setgroups
-	.long sys_fchown
-	.long sys_setresuid
-	.long sys_getresuid
-	.long sys_setresgid	/* 210 */
-	.long sys_getresgid
-	.long sys_lchown
-	.long sys_setuid
-	.long sys_setgid
-	.long sys_setfsuid	/* 215 */
-	.long sys_setfsgid
-	.long sys_pivot_root
-	.long sys_ni_syscall
-	.long sys_ni_syscall
-	.long sys_getdents64	/* 220 */
-	.long sys_gettid
-	.long sys_tkill
-	.long sys_setxattr
-	.long sys_lsetxattr
-	.long sys_fsetxattr	/* 225 */
-	.long sys_getxattr
-	.long sys_lgetxattr
-	.long sys_fgetxattr
-	.long sys_listxattr
-	.long sys_llistxattr	/* 230 */
-	.long sys_flistxattr
-	.long sys_removexattr
-	.long sys_lremovexattr
-	.long sys_fremovexattr
-	.long sys_futex		/* 235 */
-	.long sys_sendfile64
-	.long sys_mincore
-	.long sys_madvise
-	.long sys_fcntl64
-	.long sys_readahead	/* 240 */
-	.long sys_io_setup
-	.long sys_io_destroy
-	.long sys_io_getevents
-	.long sys_io_submit
-	.long sys_io_cancel	/* 245 */
-	.long sys_fadvise64
-	.long sys_exit_group
-	.long sys_lookup_dcookie
-	.long sys_epoll_create
-	.long sys_epoll_ctl	/* 250 */
-	.long sys_epoll_wait
-	.long sys_remap_file_pages
-	.long sys_set_tid_address
-	.long sys_timer_create
-	.long sys_timer_settime	/* 255 */
-	.long sys_timer_gettime
-	.long sys_timer_getoverrun
-	.long sys_timer_delete
-	.long sys_clock_settime
-	.long sys_clock_gettime	/* 260 */
-	.long sys_clock_getres
-	.long sys_clock_nanosleep
-	.long sys_statfs64
-	.long sys_fstatfs64
-	.long sys_tgkill	/* 265 */
-	.long sys_utimes
-	.long sys_fadvise64_64
-	.long sys_mbind
-	.long sys_get_mempolicy
-	.long sys_set_mempolicy	/* 270 */
-	.long sys_mq_open
-	.long sys_mq_unlink
-	.long sys_mq_timedsend
-	.long sys_mq_timedreceive
-	.long sys_mq_notify	/* 275 */
-	.long sys_mq_getsetattr
-	.long sys_waitid
-	.long sys_ni_syscall	/* for sys_vserver */
-	.long sys_add_key
-	.long sys_request_key	/* 280 */
-	.long sys_keyctl
-	.long sys_ioprio_set
-	.long sys_ioprio_get
-	.long sys_inotify_init
-	.long sys_inotify_add_watch	/* 285 */
-	.long sys_inotify_rm_watch
-	.long sys_migrate_pages
-	.long sys_openat
-	.long sys_mkdirat
-	.long sys_mknodat		/* 290 */
-	.long sys_fchownat
-	.long sys_futimesat
-	.long sys_fstatat64
-	.long sys_unlinkat
-	.long sys_renameat		/* 295 */
-	.long sys_linkat
-	.long sys_symlinkat
-	.long sys_readlinkat
-	.long sys_fchmodat
-	.long sys_faccessat		/* 300 */
-	.long sys_ni_syscall		/* Reserved for pselect6 */
-	.long sys_ni_syscall		/* Reserved for ppoll */
-	.long sys_unshare
-	.long sys_set_robust_list
-	.long sys_get_robust_list	/* 305 */
-	.long sys_splice
-	.long sys_sync_file_range
-	.long sys_tee
-	.long sys_vmsplice
-	.long sys_move_pages		/* 310 */
-	.long sys_sched_setaffinity
-	.long sys_sched_getaffinity
-	.long sys_kexec_load
-	.long sys_getcpu
-	.long sys_epoll_pwait		/* 315 */
-	.long sys_utimensat
-	.long sys_signalfd
-	.long sys_timerfd_create
-	.long sys_eventfd
-	.long sys_fallocate		/* 320 */
-	.long sys_timerfd_settime
-	.long sys_timerfd_gettime
-	.long sys_signalfd4
-	.long sys_eventfd2
-	.long sys_epoll_create1		/* 325 */
-	.long sys_dup3
-	.long sys_pipe2
-	.long sys_inotify_init1
-	.long sys_preadv
-	.long sys_pwritev		/* 330 */
-	.long sys_rt_tgsigqueueinfo
-	.long sys_perf_event_open
-	.long sys_get_thread_area
-	.long sys_set_thread_area
-	.long sys_atomic_cmpxchg_32	/* 335 */
-	.long sys_atomic_barrier
-	.long sys_fanotify_init
-	.long sys_fanotify_mark
-	.long sys_prlimit64
-
diff --git a/arch/m68k/kernel/entry_mm.S b/arch/m68k/kernel/entry_mm.S
new file mode 100644
index 000000000000..1559dea36e55
--- /dev/null
+++ b/arch/m68k/kernel/entry_mm.S
@@ -0,0 +1,753 @@
+/* -*- mode: asm -*-
+ *
+ *  linux/arch/m68k/kernel/entry.S
+ *
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file README.legal in the main directory of this archive
+ * for more details.
+ *
+ * Linux/m68k support by Hamish Macdonald
+ *
+ * 68060 fixes by Jesper Skov
+ *
+ */
+
+/*
+ * entry.S  contains the system-call and fault low-level handling routines.
+ * This also contains the timer-interrupt handler, as well as all interrupts
+ * and faults that can result in a task-switch.
+ *
+ * NOTE: This code handles signal-recognition, which happens every time
+ * after a timer-interrupt and after each system call.
+ *
+ */
+
+/*
+ * 12/03/96 Jes: Currently we only support m68k single-cpu systems, so
+ *               all pointers that used to be 'current' are now entry
+ *               number 0 in the 'current_set' list.
+ *
+ *  6/05/00 RZ:	 addedd writeback completion after return from sighandler
+ *		 for 68040
+ */
+
+#include <linux/linkage.h>
+#include <asm/entry.h>
+#include <asm/errno.h>
+#include <asm/setup.h>
+#include <asm/segment.h>
+#include <asm/traps.h>
+#include <asm/unistd.h>
+
+#include <asm/asm-offsets.h>
+
+.globl system_call, buserr, trap, resume
+.globl sys_call_table
+.globl sys_fork, sys_clone, sys_vfork
+.globl ret_from_interrupt, bad_interrupt
+.globl auto_irqhandler_fixup
+.globl user_irqvec_fixup, user_irqhandler_fixup
+
+.text
+ENTRY(buserr)
+	SAVE_ALL_INT
+	GET_CURRENT(%d0)
+	movel	%sp,%sp@-		| stack frame pointer argument
+	bsrl	buserr_c
+	addql	#4,%sp
+	jra	.Lret_from_exception
+
+ENTRY(trap)
+	SAVE_ALL_INT
+	GET_CURRENT(%d0)
+	movel	%sp,%sp@-		| stack frame pointer argument
+	bsrl	trap_c
+	addql	#4,%sp
+	jra	.Lret_from_exception
+
+	| After a fork we jump here directly from resume,
+	| so that %d1 contains the previous task
+	| schedule_tail now used regardless of CONFIG_SMP
+ENTRY(ret_from_fork)
+	movel	%d1,%sp@-
+	jsr	schedule_tail
+	addql	#4,%sp
+	jra	.Lret_from_exception
+
+do_trace_entry:
+	movel	#-ENOSYS,%sp@(PT_OFF_D0)| needed for strace
+	subql	#4,%sp
+	SAVE_SWITCH_STACK
+	jbsr	syscall_trace
+	RESTORE_SWITCH_STACK
+	addql	#4,%sp
+	movel	%sp@(PT_OFF_ORIG_D0),%d0
+	cmpl	#NR_syscalls,%d0
+	jcs	syscall
+badsys:
+	movel	#-ENOSYS,%sp@(PT_OFF_D0)
+	jra	ret_from_syscall
+
+do_trace_exit:
+	subql	#4,%sp
+	SAVE_SWITCH_STACK
+	jbsr	syscall_trace
+	RESTORE_SWITCH_STACK
+	addql	#4,%sp
+	jra	.Lret_from_exception
+
+ENTRY(ret_from_signal)
+	tstb	%curptr@(TASK_INFO+TINFO_FLAGS+2)
+	jge	1f
+	jbsr	syscall_trace
+1:	RESTORE_SWITCH_STACK
+	addql	#4,%sp
+/* on 68040 complete pending writebacks if any */
+#ifdef CONFIG_M68040
+	bfextu	%sp@(PT_OFF_FORMATVEC){#0,#4},%d0
+	subql	#7,%d0				| bus error frame ?
+	jbne	1f
+	movel	%sp,%sp@-
+	jbsr	berr_040cleanup
+	addql	#4,%sp
+1:
+#endif
+	jra	.Lret_from_exception
+
+ENTRY(system_call)
+	SAVE_ALL_SYS
+
+	GET_CURRENT(%d1)
+	| save top of frame
+	movel	%sp,%curptr@(TASK_THREAD+THREAD_ESP0)
+
+	| syscall trace?
+	tstb	%curptr@(TASK_INFO+TINFO_FLAGS+2)
+	jmi	do_trace_entry
+	cmpl	#NR_syscalls,%d0
+	jcc	badsys
+syscall:
+	jbsr	@(sys_call_table,%d0:l:4)@(0)
+	movel	%d0,%sp@(PT_OFF_D0)	| save the return value
+ret_from_syscall:
+	|oriw	#0x0700,%sr
+	movew	%curptr@(TASK_INFO+TINFO_FLAGS+2),%d0
+	jne	syscall_exit_work
+1:	RESTORE_ALL
+
+syscall_exit_work:
+	btst	#5,%sp@(PT_OFF_SR)	| check if returning to kernel
+	bnes	1b			| if so, skip resched, signals
+	lslw	#1,%d0
+	jcs	do_trace_exit
+	jmi	do_delayed_trace
+	lslw	#8,%d0
+	jmi	do_signal_return
+	pea	resume_userspace
+	jra	schedule
+
+
+ENTRY(ret_from_exception)
+.Lret_from_exception:
+	btst	#5,%sp@(PT_OFF_SR)	| check if returning to kernel
+	bnes	1f			| if so, skip resched, signals
+	| only allow interrupts when we are really the last one on the
+	| kernel stack, otherwise stack overflow can occur during
+	| heavy interrupt load
+	andw	#ALLOWINT,%sr
+
+resume_userspace:
+	moveb	%curptr@(TASK_INFO+TINFO_FLAGS+3),%d0
+	jne	exit_work
+1:	RESTORE_ALL
+
+exit_work:
+	| save top of frame
+	movel	%sp,%curptr@(TASK_THREAD+THREAD_ESP0)
+	lslb	#1,%d0
+	jmi	do_signal_return
+	pea	resume_userspace
+	jra	schedule
+
+
+do_signal_return:
+	|andw	#ALLOWINT,%sr
+	subql	#4,%sp			| dummy return address
+	SAVE_SWITCH_STACK
+	pea	%sp@(SWITCH_STACK_SIZE)
+	bsrl	do_signal
+	addql	#4,%sp
+	RESTORE_SWITCH_STACK
+	addql	#4,%sp
+	jbra	resume_userspace
+
+do_delayed_trace:
+	bclr	#7,%sp@(PT_OFF_SR)	| clear trace bit in SR
+	pea	1			| send SIGTRAP
+	movel	%curptr,%sp@-
+	pea	LSIGTRAP
+	jbsr	send_sig
+	addql	#8,%sp
+	addql	#4,%sp
+	jbra	resume_userspace
+
+
+/* This is the main interrupt handler for autovector interrupts */
+
+ENTRY(auto_inthandler)
+	SAVE_ALL_INT
+	GET_CURRENT(%d0)
+	addqb	#1,%curptr@(TASK_INFO+TINFO_PREEMPT+1)
+					|  put exception # in d0
+	bfextu	%sp@(PT_OFF_FORMATVEC){#4,#10},%d0
+	subw	#VEC_SPUR,%d0
+
+	movel	%sp,%sp@-
+	movel	%d0,%sp@-		|  put vector # on stack
+auto_irqhandler_fixup = . + 2
+	jsr	__m68k_handle_int	|  process the IRQ
+	addql	#8,%sp			|  pop parameters off stack
+
+ret_from_interrupt:
+	subqb	#1,%curptr@(TASK_INFO+TINFO_PREEMPT+1)
+	jeq	ret_from_last_interrupt
+2:	RESTORE_ALL
+
+	ALIGN
+ret_from_last_interrupt:
+	moveq	#(~ALLOWINT>>8)&0xff,%d0
+	andb	%sp@(PT_OFF_SR),%d0
+	jne	2b
+
+	/* check if we need to do software interrupts */
+	tstl	irq_stat+CPUSTAT_SOFTIRQ_PENDING
+	jeq	.Lret_from_exception
+	pea	ret_from_exception
+	jra	do_softirq
+
+/* Handler for user defined interrupt vectors */
+
+ENTRY(user_inthandler)
+	SAVE_ALL_INT
+	GET_CURRENT(%d0)
+	addqb	#1,%curptr@(TASK_INFO+TINFO_PREEMPT+1)
+					|  put exception # in d0
+	bfextu	%sp@(PT_OFF_FORMATVEC){#4,#10},%d0
+user_irqvec_fixup = . + 2
+	subw	#VEC_USER,%d0
+
+	movel	%sp,%sp@-
+	movel	%d0,%sp@-		|  put vector # on stack
+user_irqhandler_fixup = . + 2
+	jsr	__m68k_handle_int	|  process the IRQ
+	addql	#8,%sp			|  pop parameters off stack
+
+	subqb	#1,%curptr@(TASK_INFO+TINFO_PREEMPT+1)
+	jeq	ret_from_last_interrupt
+	RESTORE_ALL
+
+/* Handler for uninitialized and spurious interrupts */
+
+ENTRY(bad_inthandler)
+	SAVE_ALL_INT
+	GET_CURRENT(%d0)
+	addqb	#1,%curptr@(TASK_INFO+TINFO_PREEMPT+1)
+
+	movel	%sp,%sp@-
+	jsr	handle_badint
+	addql	#4,%sp
+
+	subqb	#1,%curptr@(TASK_INFO+TINFO_PREEMPT+1)
+	jeq	ret_from_last_interrupt
+	RESTORE_ALL
+
+
+ENTRY(sys_fork)
+	SAVE_SWITCH_STACK
+	pea	%sp@(SWITCH_STACK_SIZE)
+	jbsr	m68k_fork
+	addql	#4,%sp
+	RESTORE_SWITCH_STACK
+	rts
+
+ENTRY(sys_clone)
+	SAVE_SWITCH_STACK
+	pea	%sp@(SWITCH_STACK_SIZE)
+	jbsr	m68k_clone
+	addql	#4,%sp
+	RESTORE_SWITCH_STACK
+	rts
+
+ENTRY(sys_vfork)
+	SAVE_SWITCH_STACK
+	pea	%sp@(SWITCH_STACK_SIZE)
+	jbsr	m68k_vfork
+	addql	#4,%sp
+	RESTORE_SWITCH_STACK
+	rts
+
+ENTRY(sys_sigreturn)
+	SAVE_SWITCH_STACK
+	jbsr	do_sigreturn
+	RESTORE_SWITCH_STACK
+	rts
+
+ENTRY(sys_rt_sigreturn)
+	SAVE_SWITCH_STACK
+	jbsr	do_rt_sigreturn
+	RESTORE_SWITCH_STACK
+	rts
+
+resume:
+	/*
+	 * Beware - when entering resume, prev (the current task) is
+	 * in a0, next (the new task) is in a1,so don't change these
+	 * registers until their contents are no longer needed.
+	 */
+
+	/* save sr */
+	movew	%sr,%a0@(TASK_THREAD+THREAD_SR)
+
+	/* save fs (sfc,%dfc) (may be pointing to kernel memory) */
+	movec	%sfc,%d0
+	movew	%d0,%a0@(TASK_THREAD+THREAD_FS)
+
+	/* save usp */
+	/* it is better to use a movel here instead of a movew 8*) */
+	movec	%usp,%d0
+	movel	%d0,%a0@(TASK_THREAD+THREAD_USP)
+
+	/* save non-scratch registers on stack */
+	SAVE_SWITCH_STACK
+
+	/* save current kernel stack pointer */
+	movel	%sp,%a0@(TASK_THREAD+THREAD_KSP)
+
+	/* save floating point context */
+#ifndef CONFIG_M68KFPU_EMU_ONLY
+#ifdef CONFIG_M68KFPU_EMU
+	tstl	m68k_fputype
+	jeq	3f
+#endif
+	fsave	%a0@(TASK_THREAD+THREAD_FPSTATE)
+
+#if defined(CONFIG_M68060)
+#if !defined(CPU_M68060_ONLY)
+	btst	#3,m68k_cputype+3
+	beqs	1f
+#endif
+	/* The 060 FPU keeps status in bits 15-8 of the first longword */
+	tstb	%a0@(TASK_THREAD+THREAD_FPSTATE+2)
+	jeq	3f
+#if !defined(CPU_M68060_ONLY)
+	jra	2f
+#endif
+#endif /* CONFIG_M68060 */
+#if !defined(CPU_M68060_ONLY)
+1:	tstb	%a0@(TASK_THREAD+THREAD_FPSTATE)
+	jeq	3f
+#endif
+2:	fmovemx	%fp0-%fp7,%a0@(TASK_THREAD+THREAD_FPREG)
+	fmoveml	%fpcr/%fpsr/%fpiar,%a0@(TASK_THREAD+THREAD_FPCNTL)
+3:
+#endif	/* CONFIG_M68KFPU_EMU_ONLY */
+	/* Return previous task in %d1 */
+	movel	%curptr,%d1
+
+	/* switch to new task (a1 contains new task) */
+	movel	%a1,%curptr
+
+	/* restore floating point context */
+#ifndef CONFIG_M68KFPU_EMU_ONLY
+#ifdef CONFIG_M68KFPU_EMU
+	tstl	m68k_fputype
+	jeq	4f
+#endif
+#if defined(CONFIG_M68060)
+#if !defined(CPU_M68060_ONLY)
+	btst	#3,m68k_cputype+3
+	beqs	1f
+#endif
+	/* The 060 FPU keeps status in bits 15-8 of the first longword */
+	tstb	%a1@(TASK_THREAD+THREAD_FPSTATE+2)
+	jeq	3f
+#if !defined(CPU_M68060_ONLY)
+	jra	2f
+#endif
+#endif /* CONFIG_M68060 */
+#if !defined(CPU_M68060_ONLY)
+1:	tstb	%a1@(TASK_THREAD+THREAD_FPSTATE)
+	jeq	3f
+#endif
+2:	fmovemx	%a1@(TASK_THREAD+THREAD_FPREG),%fp0-%fp7
+	fmoveml	%a1@(TASK_THREAD+THREAD_FPCNTL),%fpcr/%fpsr/%fpiar
+3:	frestore %a1@(TASK_THREAD+THREAD_FPSTATE)
+4:
+#endif	/* CONFIG_M68KFPU_EMU_ONLY */
+
+	/* restore the kernel stack pointer */
+	movel	%a1@(TASK_THREAD+THREAD_KSP),%sp
+
+	/* restore non-scratch registers */
+	RESTORE_SWITCH_STACK
+
+	/* restore user stack pointer */
+	movel	%a1@(TASK_THREAD+THREAD_USP),%a0
+	movel	%a0,%usp
+
+	/* restore fs (sfc,%dfc) */
+	movew	%a1@(TASK_THREAD+THREAD_FS),%a0
+	movec	%a0,%sfc
+	movec	%a0,%dfc
+
+	/* restore status register */
+	movew	%a1@(TASK_THREAD+THREAD_SR),%sr
+
+	rts
+
+.data
+ALIGN
+sys_call_table:
+	.long sys_restart_syscall	/* 0 - old "setup()" system call, used for restarting */
+	.long sys_exit
+	.long sys_fork
+	.long sys_read
+	.long sys_write
+	.long sys_open		/* 5 */
+	.long sys_close
+	.long sys_waitpid
+	.long sys_creat
+	.long sys_link
+	.long sys_unlink	/* 10 */
+	.long sys_execve
+	.long sys_chdir
+	.long sys_time
+	.long sys_mknod
+	.long sys_chmod		/* 15 */
+	.long sys_chown16
+	.long sys_ni_syscall				/* old break syscall holder */
+	.long sys_stat
+	.long sys_lseek
+	.long sys_getpid	/* 20 */
+	.long sys_mount
+	.long sys_oldumount
+	.long sys_setuid16
+	.long sys_getuid16
+	.long sys_stime		/* 25 */
+	.long sys_ptrace
+	.long sys_alarm
+	.long sys_fstat
+	.long sys_pause
+	.long sys_utime		/* 30 */
+	.long sys_ni_syscall				/* old stty syscall holder */
+	.long sys_ni_syscall				/* old gtty syscall holder */
+	.long sys_access
+	.long sys_nice
+	.long sys_ni_syscall	/* 35 */	/* old ftime syscall holder */
+	.long sys_sync
+	.long sys_kill
+	.long sys_rename
+	.long sys_mkdir
+	.long sys_rmdir		/* 40 */
+	.long sys_dup
+	.long sys_pipe
+	.long sys_times
+	.long sys_ni_syscall				/* old prof syscall holder */
+	.long sys_brk		/* 45 */
+	.long sys_setgid16
+	.long sys_getgid16
+	.long sys_signal
+	.long sys_geteuid16
+	.long sys_getegid16	/* 50 */
+	.long sys_acct
+	.long sys_umount				/* recycled never used phys() */
+	.long sys_ni_syscall				/* old lock syscall holder */
+	.long sys_ioctl
+	.long sys_fcntl		/* 55 */
+	.long sys_ni_syscall				/* old mpx syscall holder */
+	.long sys_setpgid
+	.long sys_ni_syscall				/* old ulimit syscall holder */
+	.long sys_ni_syscall
+	.long sys_umask		/* 60 */
+	.long sys_chroot
+	.long sys_ustat
+	.long sys_dup2
+	.long sys_getppid
+	.long sys_getpgrp	/* 65 */
+	.long sys_setsid
+	.long sys_sigaction
+	.long sys_sgetmask
+	.long sys_ssetmask
+	.long sys_setreuid16	/* 70 */
+	.long sys_setregid16
+	.long sys_sigsuspend
+	.long sys_sigpending
+	.long sys_sethostname
+	.long sys_setrlimit	/* 75 */
+	.long sys_old_getrlimit
+	.long sys_getrusage
+	.long sys_gettimeofday
+	.long sys_settimeofday
+	.long sys_getgroups16	/* 80 */
+	.long sys_setgroups16
+	.long sys_old_select
+	.long sys_symlink
+	.long sys_lstat
+	.long sys_readlink	/* 85 */
+	.long sys_uselib
+	.long sys_swapon
+	.long sys_reboot
+	.long sys_old_readdir
+	.long sys_old_mmap	/* 90 */
+	.long sys_munmap
+	.long sys_truncate
+	.long sys_ftruncate
+	.long sys_fchmod
+	.long sys_fchown16	/* 95 */
+	.long sys_getpriority
+	.long sys_setpriority
+	.long sys_ni_syscall				/* old profil syscall holder */
+	.long sys_statfs
+	.long sys_fstatfs	/* 100 */
+	.long sys_ni_syscall				/* ioperm for i386 */
+	.long sys_socketcall
+	.long sys_syslog
+	.long sys_setitimer
+	.long sys_getitimer	/* 105 */
+	.long sys_newstat
+	.long sys_newlstat
+	.long sys_newfstat
+	.long sys_ni_syscall
+	.long sys_ni_syscall	/* 110 */	/* iopl for i386 */
+	.long sys_vhangup
+	.long sys_ni_syscall				/* obsolete idle() syscall */
+	.long sys_ni_syscall				/* vm86old for i386 */
+	.long sys_wait4
+	.long sys_swapoff	/* 115 */
+	.long sys_sysinfo
+	.long sys_ipc
+	.long sys_fsync
+	.long sys_sigreturn
+	.long sys_clone		/* 120 */
+	.long sys_setdomainname
+	.long sys_newuname
+	.long sys_cacheflush				/* modify_ldt for i386 */
+	.long sys_adjtimex
+	.long sys_mprotect	/* 125 */
+	.long sys_sigprocmask
+	.long sys_ni_syscall		/* old "create_module" */
+	.long sys_init_module
+	.long sys_delete_module
+	.long sys_ni_syscall	/* 130 - old "get_kernel_syms" */
+	.long sys_quotactl
+	.long sys_getpgid
+	.long sys_fchdir
+	.long sys_bdflush
+	.long sys_sysfs		/* 135 */
+	.long sys_personality
+	.long sys_ni_syscall				/* for afs_syscall */
+	.long sys_setfsuid16
+	.long sys_setfsgid16
+	.long sys_llseek	/* 140 */
+	.long sys_getdents
+	.long sys_select
+	.long sys_flock
+	.long sys_msync
+	.long sys_readv		/* 145 */
+	.long sys_writev
+	.long sys_getsid
+	.long sys_fdatasync
+	.long sys_sysctl
+	.long sys_mlock		/* 150 */
+	.long sys_munlock
+	.long sys_mlockall
+	.long sys_munlockall
+	.long sys_sched_setparam
+	.long sys_sched_getparam	/* 155 */
+	.long sys_sched_setscheduler
+	.long sys_sched_getscheduler
+	.long sys_sched_yield
+	.long sys_sched_get_priority_max
+	.long sys_sched_get_priority_min  /* 160 */
+	.long sys_sched_rr_get_interval
+	.long sys_nanosleep
+	.long sys_mremap
+	.long sys_setresuid16
+	.long sys_getresuid16	/* 165 */
+	.long sys_getpagesize
+	.long sys_ni_syscall		/* old sys_query_module */
+	.long sys_poll
+	.long sys_nfsservctl
+	.long sys_setresgid16	/* 170 */
+	.long sys_getresgid16
+	.long sys_prctl
+	.long sys_rt_sigreturn
+	.long sys_rt_sigaction
+	.long sys_rt_sigprocmask	/* 175 */
+	.long sys_rt_sigpending
+	.long sys_rt_sigtimedwait
+	.long sys_rt_sigqueueinfo
+	.long sys_rt_sigsuspend
+	.long sys_pread64	/* 180 */
+	.long sys_pwrite64
+	.long sys_lchown16;
+	.long sys_getcwd
+	.long sys_capget
+	.long sys_capset	/* 185 */
+	.long sys_sigaltstack
+	.long sys_sendfile
+	.long sys_ni_syscall				/* streams1 */
+	.long sys_ni_syscall				/* streams2 */
+	.long sys_vfork		/* 190 */
+	.long sys_getrlimit
+	.long sys_mmap2
+	.long sys_truncate64
+	.long sys_ftruncate64
+	.long sys_stat64	/* 195 */
+	.long sys_lstat64
+	.long sys_fstat64
+	.long sys_chown
+	.long sys_getuid
+	.long sys_getgid	/* 200 */
+	.long sys_geteuid
+	.long sys_getegid
+	.long sys_setreuid
+	.long sys_setregid
+	.long sys_getgroups	/* 205 */
+	.long sys_setgroups
+	.long sys_fchown
+	.long sys_setresuid
+	.long sys_getresuid
+	.long sys_setresgid	/* 210 */
+	.long sys_getresgid
+	.long sys_lchown
+	.long sys_setuid
+	.long sys_setgid
+	.long sys_setfsuid	/* 215 */
+	.long sys_setfsgid
+	.long sys_pivot_root
+	.long sys_ni_syscall
+	.long sys_ni_syscall
+	.long sys_getdents64	/* 220 */
+	.long sys_gettid
+	.long sys_tkill
+	.long sys_setxattr
+	.long sys_lsetxattr
+	.long sys_fsetxattr	/* 225 */
+	.long sys_getxattr
+	.long sys_lgetxattr
+	.long sys_fgetxattr
+	.long sys_listxattr
+	.long sys_llistxattr	/* 230 */
+	.long sys_flistxattr
+	.long sys_removexattr
+	.long sys_lremovexattr
+	.long sys_fremovexattr
+	.long sys_futex		/* 235 */
+	.long sys_sendfile64
+	.long sys_mincore
+	.long sys_madvise
+	.long sys_fcntl64
+	.long sys_readahead	/* 240 */
+	.long sys_io_setup
+	.long sys_io_destroy
+	.long sys_io_getevents
+	.long sys_io_submit
+	.long sys_io_cancel	/* 245 */
+	.long sys_fadvise64
+	.long sys_exit_group
+	.long sys_lookup_dcookie
+	.long sys_epoll_create
+	.long sys_epoll_ctl	/* 250 */
+	.long sys_epoll_wait
+	.long sys_remap_file_pages
+	.long sys_set_tid_address
+	.long sys_timer_create
+	.long sys_timer_settime	/* 255 */
+	.long sys_timer_gettime
+	.long sys_timer_getoverrun
+	.long sys_timer_delete
+	.long sys_clock_settime
+	.long sys_clock_gettime	/* 260 */
+	.long sys_clock_getres
+	.long sys_clock_nanosleep
+	.long sys_statfs64
+	.long sys_fstatfs64
+	.long sys_tgkill	/* 265 */
+	.long sys_utimes
+	.long sys_fadvise64_64
+	.long sys_mbind
+	.long sys_get_mempolicy
+	.long sys_set_mempolicy	/* 270 */
+	.long sys_mq_open
+	.long sys_mq_unlink
+	.long sys_mq_timedsend
+	.long sys_mq_timedreceive
+	.long sys_mq_notify	/* 275 */
+	.long sys_mq_getsetattr
+	.long sys_waitid
+	.long sys_ni_syscall	/* for sys_vserver */
+	.long sys_add_key
+	.long sys_request_key	/* 280 */
+	.long sys_keyctl
+	.long sys_ioprio_set
+	.long sys_ioprio_get
+	.long sys_inotify_init
+	.long sys_inotify_add_watch	/* 285 */
+	.long sys_inotify_rm_watch
+	.long sys_migrate_pages
+	.long sys_openat
+	.long sys_mkdirat
+	.long sys_mknodat		/* 290 */
+	.long sys_fchownat
+	.long sys_futimesat
+	.long sys_fstatat64
+	.long sys_unlinkat
+	.long sys_renameat		/* 295 */
+	.long sys_linkat
+	.long sys_symlinkat
+	.long sys_readlinkat
+	.long sys_fchmodat
+	.long sys_faccessat		/* 300 */
+	.long sys_ni_syscall		/* Reserved for pselect6 */
+	.long sys_ni_syscall		/* Reserved for ppoll */
+	.long sys_unshare
+	.long sys_set_robust_list
+	.long sys_get_robust_list	/* 305 */
+	.long sys_splice
+	.long sys_sync_file_range
+	.long sys_tee
+	.long sys_vmsplice
+	.long sys_move_pages		/* 310 */
+	.long sys_sched_setaffinity
+	.long sys_sched_getaffinity
+	.long sys_kexec_load
+	.long sys_getcpu
+	.long sys_epoll_pwait		/* 315 */
+	.long sys_utimensat
+	.long sys_signalfd
+	.long sys_timerfd_create
+	.long sys_eventfd
+	.long sys_fallocate		/* 320 */
+	.long sys_timerfd_settime
+	.long sys_timerfd_gettime
+	.long sys_signalfd4
+	.long sys_eventfd2
+	.long sys_epoll_create1		/* 325 */
+	.long sys_dup3
+	.long sys_pipe2
+	.long sys_inotify_init1
+	.long sys_preadv
+	.long sys_pwritev		/* 330 */
+	.long sys_rt_tgsigqueueinfo
+	.long sys_perf_event_open
+	.long sys_get_thread_area
+	.long sys_set_thread_area
+	.long sys_atomic_cmpxchg_32	/* 335 */
+	.long sys_atomic_barrier
+	.long sys_fanotify_init
+	.long sys_fanotify_mark
+	.long sys_prlimit64
+
diff --git a/arch/m68knommu/kernel/entry.S b/arch/m68k/kernel/entry_no.S
index 2783f25e38bd..2783f25e38bd 100644
--- a/arch/m68knommu/kernel/entry.S
+++ b/arch/m68k/kernel/entry_no.S
diff --git a/arch/m68k/kernel/head.S b/arch/m68k/kernel/head.S
index ef54128baa0b..27622b3273c1 100644
--- a/arch/m68k/kernel/head.S
+++ b/arch/m68k/kernel/head.S
@@ -134,7 +134,7 @@
  *	Thanks to a small helping routine enabling the mmu got quite simple
  * and there is only one way left. mmu_engage makes a complete a new mapping
  * that only includes the absolute necessary to be able to jump to the final
- * postion and to restore the original mapping.
+ * position and to restore the original mapping.
  * As this code doesn't need a transparent translation register anymore this
  * means all registers are free to be used by machines that needs them for
  * other purposes.
@@ -969,7 +969,7 @@ L(mmu_init_amiga):
 	is_not_040_or_060(1f)
 
 	/*
-	 * 040: Map the 16Meg range physical 0x0 upto logical 0x8000.0000
+	 * 040: Map the 16Meg range physical 0x0 up to logical 0x8000.0000
 	 */
 	mmu_map		#0x80000000,#0,#0x01000000,#_PAGE_NOCACHE_S
 	/*
@@ -982,7 +982,7 @@ L(mmu_init_amiga):
 
 1:
 	/*
-	 * 030:	Map the 32Meg range physical 0x0 upto logical 0x8000.0000
+	 * 030:	Map the 32Meg range physical 0x0 up to logical 0x8000.0000
 	 */
 	mmu_map		#0x80000000,#0,#0x02000000,#_PAGE_NOCACHE030
 	mmu_map_tt	#1,#0x40000000,#0x20000000,#_PAGE_NOCACHE030
@@ -1074,7 +1074,7 @@ L(notq40):
 	is_040(1f)
 
 	/*
-	 * 030: Map the 32Meg range physical 0x0 upto logical 0xf000.0000
+	 * 030: Map the 32Meg range physical 0x0 up to logical 0xf000.0000
 	 */
 	mmu_map	#0xf0000000,#0,#0x02000000,#_PAGE_NOCACHE030
 
@@ -1082,7 +1082,7 @@ L(notq40):
 
 1:
 	/*
-	 * 040: Map the 16Meg range physical 0x0 upto logical 0xf000.0000
+	 * 040: Map the 16Meg range physical 0x0 up to logical 0xf000.0000
 	 */
 	mmu_map #0xf0000000,#0,#0x01000000,#_PAGE_NOCACHE_S
 
@@ -3078,7 +3078,7 @@ func_start	serial_putc,%d0/%d1/%a0/%a1
 	/*
 	 * If the loader gave us a board type then we can use that to
 	 * select an appropriate output routine; otherwise we just use
-	 * the Bug code.  If we haev to use the Bug that means the Bug
+	 * the Bug code.  If we have to use the Bug that means the Bug
 	 * workspace has to be valid, which means the Bug has to use
 	 * the SRAM, which is non-standard.
 	 */
diff --git a/arch/m68knommu/kernel/init_task.c b/arch/m68k/kernel/init_task.c
index cbf9dc3cc51d..cbf9dc3cc51d 100644
--- a/arch/m68knommu/kernel/init_task.c
+++ b/arch/m68k/kernel/init_task.c
diff --git a/arch/m68knommu/kernel/irq.c b/arch/m68k/kernel/irq.c
index c7dd48f37bee..15dbc3e9d20c 100644
--- a/arch/m68knommu/kernel/irq.c
+++ b/arch/m68k/kernel/irq.c
@@ -44,7 +44,7 @@ int show_interrupts(struct seq_file *p, void *v)
 		if (ap) {
 			seq_printf(p, "%3d: ", irq);
 			seq_printf(p, "%10u ", kstat_irqs(irq));
-			seq_printf(p, "%14s  ", get_irq_desc_chip(desc)->name);
+			seq_printf(p, "%14s  ", irq_desc_get_chip(desc)->name);
 
 			seq_printf(p, "%s", ap->name);
 			for (ap = ap->next; ap; ap = ap->next)
diff --git a/arch/m68k/kernel/m68k_ksyms.c b/arch/m68k/kernel/m68k_ksyms.c
index d900e77e5363..4752c28ce0ac 100644
--- a/arch/m68k/kernel/m68k_ksyms.c
+++ b/arch/m68k/kernel/m68k_ksyms.c
@@ -1,16 +1,5 @@
-#include <linux/module.h>
-
-asmlinkage long long __ashldi3 (long long, int);
-asmlinkage long long __ashrdi3 (long long, int);
-asmlinkage long long __lshrdi3 (long long, int);
-asmlinkage long long __muldi3 (long long, long long);
-
-/* The following are special because they're not called
-   explicitly (the C compiler generates them).  Fortunately,
-   their interface isn't gonna change any time soon now, so
-   it's OK to leave it out of version control.  */
-EXPORT_SYMBOL(__ashldi3);
-EXPORT_SYMBOL(__ashrdi3);
-EXPORT_SYMBOL(__lshrdi3);
-EXPORT_SYMBOL(__muldi3);
-
+#ifdef CONFIG_MMU
+#include "m68k_ksyms_mm.c"
+#else
+#include "m68k_ksyms_no.c"
+#endif
diff --git a/arch/m68k/kernel/m68k_ksyms_mm.c b/arch/m68k/kernel/m68k_ksyms_mm.c
new file mode 100644
index 000000000000..d900e77e5363
--- /dev/null
+++ b/arch/m68k/kernel/m68k_ksyms_mm.c
@@ -0,0 +1,16 @@
+#include <linux/module.h>
+
+asmlinkage long long __ashldi3 (long long, int);
+asmlinkage long long __ashrdi3 (long long, int);
+asmlinkage long long __lshrdi3 (long long, int);
+asmlinkage long long __muldi3 (long long, long long);
+
+/* The following are special because they're not called
+   explicitly (the C compiler generates them).  Fortunately,
+   their interface isn't gonna change any time soon now, so
+   it's OK to leave it out of version control.  */
+EXPORT_SYMBOL(__ashldi3);
+EXPORT_SYMBOL(__ashrdi3);
+EXPORT_SYMBOL(__lshrdi3);
+EXPORT_SYMBOL(__muldi3);
+
diff --git a/arch/m68knommu/kernel/m68k_ksyms.c b/arch/m68k/kernel/m68k_ksyms_no.c
index 39fe0a7aec32..39fe0a7aec32 100644
--- a/arch/m68knommu/kernel/m68k_ksyms.c
+++ b/arch/m68k/kernel/m68k_ksyms_no.c
diff --git a/arch/m68k/kernel/module.c b/arch/m68k/kernel/module.c
index cd6bcb1c957e..7ea203ce6b1a 100644
--- a/arch/m68k/kernel/module.c
+++ b/arch/m68k/kernel/module.c
@@ -1,155 +1,5 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file COPYING in the main directory of this archive
- * for more details.
- */
-
-#include <linux/moduleloader.h>
-#include <linux/elf.h>
-#include <linux/vmalloc.h>
-#include <linux/fs.h>
-#include <linux/string.h>
-#include <linux/kernel.h>
-
-#if 0
-#define DEBUGP printk
+#ifdef CONFIG_MMU
+#include "module_mm.c"
 #else
-#define DEBUGP(fmt...)
+#include "module_no.c"
 #endif
-
-#ifdef CONFIG_MODULES
-
-void *module_alloc(unsigned long size)
-{
-	if (size == 0)
-		return NULL;
-	return vmalloc(size);
-}
-
-
-/* Free memory returned from module_alloc */
-void module_free(struct module *mod, void *module_region)
-{
-	vfree(module_region);
-}
-
-/* We don't need anything special. */
-int module_frob_arch_sections(Elf_Ehdr *hdr,
-			      Elf_Shdr *sechdrs,
-			      char *secstrings,
-			      struct module *mod)
-{
-	return 0;
-}
-
-int apply_relocate(Elf32_Shdr *sechdrs,
-		   const char *strtab,
-		   unsigned int symindex,
-		   unsigned int relsec,
-		   struct module *me)
-{
-	unsigned int i;
-	Elf32_Rel *rel = (void *)sechdrs[relsec].sh_addr;
-	Elf32_Sym *sym;
-	uint32_t *location;
-
-	DEBUGP("Applying relocate section %u to %u\n", relsec,
-	       sechdrs[relsec].sh_info);
-	for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) {
-		/* This is where to make the change */
-		location = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr
-			+ rel[i].r_offset;
-		/* This is the symbol it is referring to.  Note that all
-		   undefined symbols have been resolved.  */
-		sym = (Elf32_Sym *)sechdrs[symindex].sh_addr
-			+ ELF32_R_SYM(rel[i].r_info);
-
-		switch (ELF32_R_TYPE(rel[i].r_info)) {
-		case R_68K_32:
-			/* We add the value into the location given */
-			*location += sym->st_value;
-			break;
-		case R_68K_PC32:
-			/* Add the value, subtract its postition */
-			*location += sym->st_value - (uint32_t)location;
-			break;
-		default:
-			printk(KERN_ERR "module %s: Unknown relocation: %u\n",
-			       me->name, ELF32_R_TYPE(rel[i].r_info));
-			return -ENOEXEC;
-		}
-	}
-	return 0;
-}
-
-int apply_relocate_add(Elf32_Shdr *sechdrs,
-		       const char *strtab,
-		       unsigned int symindex,
-		       unsigned int relsec,
-		       struct module *me)
-{
-	unsigned int i;
-	Elf32_Rela *rel = (void *)sechdrs[relsec].sh_addr;
-	Elf32_Sym *sym;
-	uint32_t *location;
-
-	DEBUGP("Applying relocate_add section %u to %u\n", relsec,
-	       sechdrs[relsec].sh_info);
-	for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) {
-		/* This is where to make the change */
-		location = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr
-			+ rel[i].r_offset;
-		/* This is the symbol it is referring to.  Note that all
-		   undefined symbols have been resolved.  */
-		sym = (Elf32_Sym *)sechdrs[symindex].sh_addr
-			+ ELF32_R_SYM(rel[i].r_info);
-
-		switch (ELF32_R_TYPE(rel[i].r_info)) {
-		case R_68K_32:
-			/* We add the value into the location given */
-			*location = rel[i].r_addend + sym->st_value;
-			break;
-		case R_68K_PC32:
-			/* Add the value, subtract its postition */
-			*location = rel[i].r_addend + sym->st_value - (uint32_t)location;
-			break;
-		default:
-			printk(KERN_ERR "module %s: Unknown relocation: %u\n",
-			       me->name, ELF32_R_TYPE(rel[i].r_info));
-			return -ENOEXEC;
-		}
-	}
-	return 0;
-}
-
-int module_finalize(const Elf_Ehdr *hdr,
-		    const Elf_Shdr *sechdrs,
-		    struct module *mod)
-{
-	module_fixup(mod, mod->arch.fixup_start, mod->arch.fixup_end);
-
-	return 0;
-}
-
-void module_arch_cleanup(struct module *mod)
-{
-}
-
-#endif /* CONFIG_MODULES */
-
-void module_fixup(struct module *mod, struct m68k_fixup_info *start,
-		  struct m68k_fixup_info *end)
-{
-	struct m68k_fixup_info *fixup;
-
-	for (fixup = start; fixup < end; fixup++) {
-		switch (fixup->type) {
-		case m68k_fixup_memoffset:
-			*(u32 *)fixup->addr = m68k_memoffset;
-			break;
-		case m68k_fixup_vnode_shift:
-			*(u16 *)fixup->addr += m68k_virt_to_node_shift;
-			break;
-		}
-	}
-}
diff --git a/arch/m68k/kernel/module_mm.c b/arch/m68k/kernel/module_mm.c
new file mode 100644
index 000000000000..cd6bcb1c957e
--- /dev/null
+++ b/arch/m68k/kernel/module_mm.c
@@ -0,0 +1,155 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file COPYING in the main directory of this archive
+ * for more details.
+ */
+
+#include <linux/moduleloader.h>
+#include <linux/elf.h>
+#include <linux/vmalloc.h>
+#include <linux/fs.h>
+#include <linux/string.h>
+#include <linux/kernel.h>
+
+#if 0
+#define DEBUGP printk
+#else
+#define DEBUGP(fmt...)
+#endif
+
+#ifdef CONFIG_MODULES
+
+void *module_alloc(unsigned long size)
+{
+	if (size == 0)
+		return NULL;
+	return vmalloc(size);
+}
+
+
+/* Free memory returned from module_alloc */
+void module_free(struct module *mod, void *module_region)
+{
+	vfree(module_region);
+}
+
+/* We don't need anything special. */
+int module_frob_arch_sections(Elf_Ehdr *hdr,
+			      Elf_Shdr *sechdrs,
+			      char *secstrings,
+			      struct module *mod)
+{
+	return 0;
+}
+
+int apply_relocate(Elf32_Shdr *sechdrs,
+		   const char *strtab,
+		   unsigned int symindex,
+		   unsigned int relsec,
+		   struct module *me)
+{
+	unsigned int i;
+	Elf32_Rel *rel = (void *)sechdrs[relsec].sh_addr;
+	Elf32_Sym *sym;
+	uint32_t *location;
+
+	DEBUGP("Applying relocate section %u to %u\n", relsec,
+	       sechdrs[relsec].sh_info);
+	for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) {
+		/* This is where to make the change */
+		location = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr
+			+ rel[i].r_offset;
+		/* This is the symbol it is referring to.  Note that all
+		   undefined symbols have been resolved.  */
+		sym = (Elf32_Sym *)sechdrs[symindex].sh_addr
+			+ ELF32_R_SYM(rel[i].r_info);
+
+		switch (ELF32_R_TYPE(rel[i].r_info)) {
+		case R_68K_32:
+			/* We add the value into the location given */
+			*location += sym->st_value;
+			break;
+		case R_68K_PC32:
+			/* Add the value, subtract its postition */
+			*location += sym->st_value - (uint32_t)location;
+			break;
+		default:
+			printk(KERN_ERR "module %s: Unknown relocation: %u\n",
+			       me->name, ELF32_R_TYPE(rel[i].r_info));
+			return -ENOEXEC;
+		}
+	}
+	return 0;
+}
+
+int apply_relocate_add(Elf32_Shdr *sechdrs,
+		       const char *strtab,
+		       unsigned int symindex,
+		       unsigned int relsec,
+		       struct module *me)
+{
+	unsigned int i;
+	Elf32_Rela *rel = (void *)sechdrs[relsec].sh_addr;
+	Elf32_Sym *sym;
+	uint32_t *location;
+
+	DEBUGP("Applying relocate_add section %u to %u\n", relsec,
+	       sechdrs[relsec].sh_info);
+	for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) {
+		/* This is where to make the change */
+		location = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr
+			+ rel[i].r_offset;
+		/* This is the symbol it is referring to.  Note that all
+		   undefined symbols have been resolved.  */
+		sym = (Elf32_Sym *)sechdrs[symindex].sh_addr
+			+ ELF32_R_SYM(rel[i].r_info);
+
+		switch (ELF32_R_TYPE(rel[i].r_info)) {
+		case R_68K_32:
+			/* We add the value into the location given */
+			*location = rel[i].r_addend + sym->st_value;
+			break;
+		case R_68K_PC32:
+			/* Add the value, subtract its postition */
+			*location = rel[i].r_addend + sym->st_value - (uint32_t)location;
+			break;
+		default:
+			printk(KERN_ERR "module %s: Unknown relocation: %u\n",
+			       me->name, ELF32_R_TYPE(rel[i].r_info));
+			return -ENOEXEC;
+		}
+	}
+	return 0;
+}
+
+int module_finalize(const Elf_Ehdr *hdr,
+		    const Elf_Shdr *sechdrs,
+		    struct module *mod)
+{
+	module_fixup(mod, mod->arch.fixup_start, mod->arch.fixup_end);
+
+	return 0;
+}
+
+void module_arch_cleanup(struct module *mod)
+{
+}
+
+#endif /* CONFIG_MODULES */
+
+void module_fixup(struct module *mod, struct m68k_fixup_info *start,
+		  struct m68k_fixup_info *end)
+{
+	struct m68k_fixup_info *fixup;
+
+	for (fixup = start; fixup < end; fixup++) {
+		switch (fixup->type) {
+		case m68k_fixup_memoffset:
+			*(u32 *)fixup->addr = m68k_memoffset;
+			break;
+		case m68k_fixup_vnode_shift:
+			*(u16 *)fixup->addr += m68k_virt_to_node_shift;
+			break;
+		}
+	}
+}
diff --git a/arch/m68knommu/kernel/module.c b/arch/m68k/kernel/module_no.c
index d11ffae7956a..d11ffae7956a 100644
--- a/arch/m68knommu/kernel/module.c
+++ b/arch/m68k/kernel/module_no.c
diff --git a/arch/m68k/kernel/process.c b/arch/m68k/kernel/process.c
index c2a1fc23dd75..6cf4bd6e34f8 100644
--- a/arch/m68k/kernel/process.c
+++ b/arch/m68k/kernel/process.c
@@ -1,354 +1,5 @@
-/*
- *  linux/arch/m68k/kernel/process.c
- *
- *  Copyright (C) 1995  Hamish Macdonald
- *
- *  68060 fixes by Jesper Skov
- */
-
-/*
- * This file handles the architecture-dependent parts of process handling..
- */
-
-#include <linux/errno.h>
-#include <linux/module.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/slab.h>
-#include <linux/fs.h>
-#include <linux/smp.h>
-#include <linux/stddef.h>
-#include <linux/unistd.h>
-#include <linux/ptrace.h>
-#include <linux/user.h>
-#include <linux/reboot.h>
-#include <linux/init_task.h>
-#include <linux/mqueue.h>
-
-#include <asm/uaccess.h>
-#include <asm/system.h>
-#include <asm/traps.h>
-#include <asm/machdep.h>
-#include <asm/setup.h>
-#include <asm/pgtable.h>
-
-/*
- * Initial task/thread structure. Make this a per-architecture thing,
- * because different architectures tend to have different
- * alignment requirements and potentially different initial
- * setup.
- */
-static struct signal_struct init_signals = INIT_SIGNALS(init_signals);
-static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand);
-union thread_union init_thread_union __init_task_data
-	__attribute__((aligned(THREAD_SIZE))) =
-		{ INIT_THREAD_INFO(init_task) };
-
-/* initial task structure */
-struct task_struct init_task = INIT_TASK(init_task);
-
-EXPORT_SYMBOL(init_task);
-
-asmlinkage void ret_from_fork(void);
-
-
-/*
- * Return saved PC from a blocked thread
- */
-unsigned long thread_saved_pc(struct task_struct *tsk)
-{
-	struct switch_stack *sw = (struct switch_stack *)tsk->thread.ksp;
-	/* Check whether the thread is blocked in resume() */
-	if (in_sched_functions(sw->retpc))
-		return ((unsigned long *)sw->a6)[1];
-	else
-		return sw->retpc;
-}
-
-/*
- * The idle loop on an m68k..
- */
-static void default_idle(void)
-{
-	if (!need_resched())
-#if defined(MACH_ATARI_ONLY)
-		/* block out HSYNC on the atari (falcon) */
-		__asm__("stop #0x2200" : : : "cc");
+#ifdef CONFIG_MMU
+#include "process_mm.c"
 #else
-		__asm__("stop #0x2000" : : : "cc");
+#include "process_no.c"
 #endif
-}
-
-void (*idle)(void) = default_idle;
-
-/*
- * The idle thread. There's no useful work to be
- * done, so just try to conserve power and have a
- * low exit latency (ie sit in a loop waiting for
- * somebody to say that they'd like to reschedule)
- */
-void cpu_idle(void)
-{
-	/* endless idle loop with no priority at all */
-	while (1) {
-		while (!need_resched())
-			idle();
-		preempt_enable_no_resched();
-		schedule();
-		preempt_disable();
-	}
-}
-
-void machine_restart(char * __unused)
-{
-	if (mach_reset)
-		mach_reset();
-	for (;;);
-}
-
-void machine_halt(void)
-{
-	if (mach_halt)
-		mach_halt();
-	for (;;);
-}
-
-void machine_power_off(void)
-{
-	if (mach_power_off)
-		mach_power_off();
-	for (;;);
-}
-
-void (*pm_power_off)(void) = machine_power_off;
-EXPORT_SYMBOL(pm_power_off);
-
-void show_regs(struct pt_regs * regs)
-{
-	printk("\n");
-	printk("Format %02x  Vector: %04x  PC: %08lx  Status: %04x    %s\n",
-	       regs->format, regs->vector, regs->pc, regs->sr, print_tainted());
-	printk("ORIG_D0: %08lx  D0: %08lx  A2: %08lx  A1: %08lx\n",
-	       regs->orig_d0, regs->d0, regs->a2, regs->a1);
-	printk("A0: %08lx  D5: %08lx  D4: %08lx\n",
-	       regs->a0, regs->d5, regs->d4);
-	printk("D3: %08lx  D2: %08lx  D1: %08lx\n",
-	       regs->d3, regs->d2, regs->d1);
-	if (!(regs->sr & PS_S))
-		printk("USP: %08lx\n", rdusp());
-}
-
-/*
- * Create a kernel thread
- */
-int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags)
-{
-	int pid;
-	mm_segment_t fs;
-
-	fs = get_fs();
-	set_fs (KERNEL_DS);
-
-	{
-	register long retval __asm__ ("d0");
-	register long clone_arg __asm__ ("d1") = flags | CLONE_VM | CLONE_UNTRACED;
-
-	retval = __NR_clone;
-	__asm__ __volatile__
-	  ("clrl %%d2\n\t"
-	   "trap #0\n\t"		/* Linux/m68k system call */
-	   "tstl %0\n\t"		/* child or parent */
-	   "jne 1f\n\t"			/* parent - jump */
-	   "lea %%sp@(%c7),%6\n\t"	/* reload current */
-	   "movel %6@,%6\n\t"
-	   "movel %3,%%sp@-\n\t"	/* push argument */
-	   "jsr %4@\n\t"		/* call fn */
-	   "movel %0,%%d1\n\t"		/* pass exit value */
-	   "movel %2,%%d0\n\t"		/* exit */
-	   "trap #0\n"
-	   "1:"
-	   : "+d" (retval)
-	   : "i" (__NR_clone), "i" (__NR_exit),
-	     "r" (arg), "a" (fn), "d" (clone_arg), "r" (current),
-	     "i" (-THREAD_SIZE)
-	   : "d2");
-
-	pid = retval;
-	}
-
-	set_fs (fs);
-	return pid;
-}
-EXPORT_SYMBOL(kernel_thread);
-
-void flush_thread(void)
-{
-	unsigned long zero = 0;
-	set_fs(USER_DS);
-	current->thread.fs = __USER_DS;
-	if (!FPU_IS_EMU)
-		asm volatile (".chip 68k/68881\n\t"
-			      "frestore %0@\n\t"
-			      ".chip 68k" : : "a" (&zero));
-}
-
-/*
- * "m68k_fork()".. By the time we get here, the
- * non-volatile registers have also been saved on the
- * stack. We do some ugly pointer stuff here.. (see
- * also copy_thread)
- */
-
-asmlinkage int m68k_fork(struct pt_regs *regs)
-{
-	return do_fork(SIGCHLD, rdusp(), regs, 0, NULL, NULL);
-}
-
-asmlinkage int m68k_vfork(struct pt_regs *regs)
-{
-	return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, rdusp(), regs, 0,
-		       NULL, NULL);
-}
-
-asmlinkage int m68k_clone(struct pt_regs *regs)
-{
-	unsigned long clone_flags;
-	unsigned long newsp;
-	int __user *parent_tidptr, *child_tidptr;
-
-	/* syscall2 puts clone_flags in d1 and usp in d2 */
-	clone_flags = regs->d1;
-	newsp = regs->d2;
-	parent_tidptr = (int __user *)regs->d3;
-	child_tidptr = (int __user *)regs->d4;
-	if (!newsp)
-		newsp = rdusp();
-	return do_fork(clone_flags, newsp, regs, 0,
-		       parent_tidptr, child_tidptr);
-}
-
-int copy_thread(unsigned long clone_flags, unsigned long usp,
-		 unsigned long unused,
-		 struct task_struct * p, struct pt_regs * regs)
-{
-	struct pt_regs * childregs;
-	struct switch_stack * childstack, *stack;
-	unsigned long *retp;
-
-	childregs = (struct pt_regs *) (task_stack_page(p) + THREAD_SIZE) - 1;
-
-	*childregs = *regs;
-	childregs->d0 = 0;
-
-	retp = ((unsigned long *) regs);
-	stack = ((struct switch_stack *) retp) - 1;
-
-	childstack = ((struct switch_stack *) childregs) - 1;
-	*childstack = *stack;
-	childstack->retpc = (unsigned long)ret_from_fork;
-
-	p->thread.usp = usp;
-	p->thread.ksp = (unsigned long)childstack;
-
-	if (clone_flags & CLONE_SETTLS)
-		task_thread_info(p)->tp_value = regs->d5;
-
-	/*
-	 * Must save the current SFC/DFC value, NOT the value when
-	 * the parent was last descheduled - RGH  10-08-96
-	 */
-	p->thread.fs = get_fs().seg;
-
-	if (!FPU_IS_EMU) {
-		/* Copy the current fpu state */
-		asm volatile ("fsave %0" : : "m" (p->thread.fpstate[0]) : "memory");
-
-		if (!CPU_IS_060 ? p->thread.fpstate[0] : p->thread.fpstate[2])
-		  asm volatile ("fmovemx %/fp0-%/fp7,%0\n\t"
-				"fmoveml %/fpiar/%/fpcr/%/fpsr,%1"
-				: : "m" (p->thread.fp[0]), "m" (p->thread.fpcntl[0])
-				: "memory");
-		/* Restore the state in case the fpu was busy */
-		asm volatile ("frestore %0" : : "m" (p->thread.fpstate[0]));
-	}
-
-	return 0;
-}
-
-/* Fill in the fpu structure for a core dump.  */
-
-int dump_fpu (struct pt_regs *regs, struct user_m68kfp_struct *fpu)
-{
-	char fpustate[216];
-
-	if (FPU_IS_EMU) {
-		int i;
-
-		memcpy(fpu->fpcntl, current->thread.fpcntl, 12);
-		memcpy(fpu->fpregs, current->thread.fp, 96);
-		/* Convert internal fpu reg representation
-		 * into long double format
-		 */
-		for (i = 0; i < 24; i += 3)
-			fpu->fpregs[i] = ((fpu->fpregs[i] & 0xffff0000) << 15) |
-			                 ((fpu->fpregs[i] & 0x0000ffff) << 16);
-		return 1;
-	}
-
-	/* First dump the fpu context to avoid protocol violation.  */
-	asm volatile ("fsave %0" :: "m" (fpustate[0]) : "memory");
-	if (!CPU_IS_060 ? !fpustate[0] : !fpustate[2])
-		return 0;
-
-	asm volatile ("fmovem %/fpiar/%/fpcr/%/fpsr,%0"
-		:: "m" (fpu->fpcntl[0])
-		: "memory");
-	asm volatile ("fmovemx %/fp0-%/fp7,%0"
-		:: "m" (fpu->fpregs[0])
-		: "memory");
-	return 1;
-}
-EXPORT_SYMBOL(dump_fpu);
-
-/*
- * sys_execve() executes a new program.
- */
-asmlinkage int sys_execve(const char __user *name,
-			  const char __user *const __user *argv,
-			  const char __user *const __user *envp)
-{
-	int error;
-	char * filename;
-	struct pt_regs *regs = (struct pt_regs *) &name;
-
-	filename = getname(name);
-	error = PTR_ERR(filename);
-	if (IS_ERR(filename))
-		return error;
-	error = do_execve(filename, argv, envp, regs);
-	putname(filename);
-	return error;
-}
-
-unsigned long get_wchan(struct task_struct *p)
-{
-	unsigned long fp, pc;
-	unsigned long stack_page;
-	int count = 0;
-	if (!p || p == current || p->state == TASK_RUNNING)
-		return 0;
-
-	stack_page = (unsigned long)task_stack_page(p);
-	fp = ((struct switch_stack *)p->thread.ksp)->a6;
-	do {
-		if (fp < stack_page+sizeof(struct thread_info) ||
-		    fp >= 8184+stack_page)
-			return 0;
-		pc = ((unsigned long *)fp)[1];
-		if (!in_sched_functions(pc))
-			return pc;
-		fp = *(unsigned long *) fp;
-	} while (count++ < 16);
-	return 0;
-}
diff --git a/arch/m68k/kernel/process_mm.c b/arch/m68k/kernel/process_mm.c
new file mode 100644
index 000000000000..c2a1fc23dd75
--- /dev/null
+++ b/arch/m68k/kernel/process_mm.c
@@ -0,0 +1,354 @@
+/*
+ *  linux/arch/m68k/kernel/process.c
+ *
+ *  Copyright (C) 1995  Hamish Macdonald
+ *
+ *  68060 fixes by Jesper Skov
+ */
+
+/*
+ * This file handles the architecture-dependent parts of process handling..
+ */
+
+#include <linux/errno.h>
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/slab.h>
+#include <linux/fs.h>
+#include <linux/smp.h>
+#include <linux/stddef.h>
+#include <linux/unistd.h>
+#include <linux/ptrace.h>
+#include <linux/user.h>
+#include <linux/reboot.h>
+#include <linux/init_task.h>
+#include <linux/mqueue.h>
+
+#include <asm/uaccess.h>
+#include <asm/system.h>
+#include <asm/traps.h>
+#include <asm/machdep.h>
+#include <asm/setup.h>
+#include <asm/pgtable.h>
+
+/*
+ * Initial task/thread structure. Make this a per-architecture thing,
+ * because different architectures tend to have different
+ * alignment requirements and potentially different initial
+ * setup.
+ */
+static struct signal_struct init_signals = INIT_SIGNALS(init_signals);
+static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand);
+union thread_union init_thread_union __init_task_data
+	__attribute__((aligned(THREAD_SIZE))) =
+		{ INIT_THREAD_INFO(init_task) };
+
+/* initial task structure */
+struct task_struct init_task = INIT_TASK(init_task);
+
+EXPORT_SYMBOL(init_task);
+
+asmlinkage void ret_from_fork(void);
+
+
+/*
+ * Return saved PC from a blocked thread
+ */
+unsigned long thread_saved_pc(struct task_struct *tsk)
+{
+	struct switch_stack *sw = (struct switch_stack *)tsk->thread.ksp;
+	/* Check whether the thread is blocked in resume() */
+	if (in_sched_functions(sw->retpc))
+		return ((unsigned long *)sw->a6)[1];
+	else
+		return sw->retpc;
+}
+
+/*
+ * The idle loop on an m68k..
+ */
+static void default_idle(void)
+{
+	if (!need_resched())
+#if defined(MACH_ATARI_ONLY)
+		/* block out HSYNC on the atari (falcon) */
+		__asm__("stop #0x2200" : : : "cc");
+#else
+		__asm__("stop #0x2000" : : : "cc");
+#endif
+}
+
+void (*idle)(void) = default_idle;
+
+/*
+ * The idle thread. There's no useful work to be
+ * done, so just try to conserve power and have a
+ * low exit latency (ie sit in a loop waiting for
+ * somebody to say that they'd like to reschedule)
+ */
+void cpu_idle(void)
+{
+	/* endless idle loop with no priority at all */
+	while (1) {
+		while (!need_resched())
+			idle();
+		preempt_enable_no_resched();
+		schedule();
+		preempt_disable();
+	}
+}
+
+void machine_restart(char * __unused)
+{
+	if (mach_reset)
+		mach_reset();
+	for (;;);
+}
+
+void machine_halt(void)
+{
+	if (mach_halt)
+		mach_halt();
+	for (;;);
+}
+
+void machine_power_off(void)
+{
+	if (mach_power_off)
+		mach_power_off();
+	for (;;);
+}
+
+void (*pm_power_off)(void) = machine_power_off;
+EXPORT_SYMBOL(pm_power_off);
+
+void show_regs(struct pt_regs * regs)
+{
+	printk("\n");
+	printk("Format %02x  Vector: %04x  PC: %08lx  Status: %04x    %s\n",
+	       regs->format, regs->vector, regs->pc, regs->sr, print_tainted());
+	printk("ORIG_D0: %08lx  D0: %08lx  A2: %08lx  A1: %08lx\n",
+	       regs->orig_d0, regs->d0, regs->a2, regs->a1);
+	printk("A0: %08lx  D5: %08lx  D4: %08lx\n",
+	       regs->a0, regs->d5, regs->d4);
+	printk("D3: %08lx  D2: %08lx  D1: %08lx\n",
+	       regs->d3, regs->d2, regs->d1);
+	if (!(regs->sr & PS_S))
+		printk("USP: %08lx\n", rdusp());
+}
+
+/*
+ * Create a kernel thread
+ */
+int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags)
+{
+	int pid;
+	mm_segment_t fs;
+
+	fs = get_fs();
+	set_fs (KERNEL_DS);
+
+	{
+	register long retval __asm__ ("d0");
+	register long clone_arg __asm__ ("d1") = flags | CLONE_VM | CLONE_UNTRACED;
+
+	retval = __NR_clone;
+	__asm__ __volatile__
+	  ("clrl %%d2\n\t"
+	   "trap #0\n\t"		/* Linux/m68k system call */
+	   "tstl %0\n\t"		/* child or parent */
+	   "jne 1f\n\t"			/* parent - jump */
+	   "lea %%sp@(%c7),%6\n\t"	/* reload current */
+	   "movel %6@,%6\n\t"
+	   "movel %3,%%sp@-\n\t"	/* push argument */
+	   "jsr %4@\n\t"		/* call fn */
+	   "movel %0,%%d1\n\t"		/* pass exit value */
+	   "movel %2,%%d0\n\t"		/* exit */
+	   "trap #0\n"
+	   "1:"
+	   : "+d" (retval)
+	   : "i" (__NR_clone), "i" (__NR_exit),
+	     "r" (arg), "a" (fn), "d" (clone_arg), "r" (current),
+	     "i" (-THREAD_SIZE)
+	   : "d2");
+
+	pid = retval;
+	}
+
+	set_fs (fs);
+	return pid;
+}
+EXPORT_SYMBOL(kernel_thread);
+
+void flush_thread(void)
+{
+	unsigned long zero = 0;
+	set_fs(USER_DS);
+	current->thread.fs = __USER_DS;
+	if (!FPU_IS_EMU)
+		asm volatile (".chip 68k/68881\n\t"
+			      "frestore %0@\n\t"
+			      ".chip 68k" : : "a" (&zero));
+}
+
+/*
+ * "m68k_fork()".. By the time we get here, the
+ * non-volatile registers have also been saved on the
+ * stack. We do some ugly pointer stuff here.. (see
+ * also copy_thread)
+ */
+
+asmlinkage int m68k_fork(struct pt_regs *regs)
+{
+	return do_fork(SIGCHLD, rdusp(), regs, 0, NULL, NULL);
+}
+
+asmlinkage int m68k_vfork(struct pt_regs *regs)
+{
+	return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, rdusp(), regs, 0,
+		       NULL, NULL);
+}
+
+asmlinkage int m68k_clone(struct pt_regs *regs)
+{
+	unsigned long clone_flags;
+	unsigned long newsp;
+	int __user *parent_tidptr, *child_tidptr;
+
+	/* syscall2 puts clone_flags in d1 and usp in d2 */
+	clone_flags = regs->d1;
+	newsp = regs->d2;
+	parent_tidptr = (int __user *)regs->d3;
+	child_tidptr = (int __user *)regs->d4;
+	if (!newsp)
+		newsp = rdusp();
+	return do_fork(clone_flags, newsp, regs, 0,
+		       parent_tidptr, child_tidptr);
+}
+
+int copy_thread(unsigned long clone_flags, unsigned long usp,
+		 unsigned long unused,
+		 struct task_struct * p, struct pt_regs * regs)
+{
+	struct pt_regs * childregs;
+	struct switch_stack * childstack, *stack;
+	unsigned long *retp;
+
+	childregs = (struct pt_regs *) (task_stack_page(p) + THREAD_SIZE) - 1;
+
+	*childregs = *regs;
+	childregs->d0 = 0;
+
+	retp = ((unsigned long *) regs);
+	stack = ((struct switch_stack *) retp) - 1;
+
+	childstack = ((struct switch_stack *) childregs) - 1;
+	*childstack = *stack;
+	childstack->retpc = (unsigned long)ret_from_fork;
+
+	p->thread.usp = usp;
+	p->thread.ksp = (unsigned long)childstack;
+
+	if (clone_flags & CLONE_SETTLS)
+		task_thread_info(p)->tp_value = regs->d5;
+
+	/*
+	 * Must save the current SFC/DFC value, NOT the value when
+	 * the parent was last descheduled - RGH  10-08-96
+	 */
+	p->thread.fs = get_fs().seg;
+
+	if (!FPU_IS_EMU) {
+		/* Copy the current fpu state */
+		asm volatile ("fsave %0" : : "m" (p->thread.fpstate[0]) : "memory");
+
+		if (!CPU_IS_060 ? p->thread.fpstate[0] : p->thread.fpstate[2])
+		  asm volatile ("fmovemx %/fp0-%/fp7,%0\n\t"
+				"fmoveml %/fpiar/%/fpcr/%/fpsr,%1"
+				: : "m" (p->thread.fp[0]), "m" (p->thread.fpcntl[0])
+				: "memory");
+		/* Restore the state in case the fpu was busy */
+		asm volatile ("frestore %0" : : "m" (p->thread.fpstate[0]));
+	}
+
+	return 0;
+}
+
+/* Fill in the fpu structure for a core dump.  */
+
+int dump_fpu (struct pt_regs *regs, struct user_m68kfp_struct *fpu)
+{
+	char fpustate[216];
+
+	if (FPU_IS_EMU) {
+		int i;
+
+		memcpy(fpu->fpcntl, current->thread.fpcntl, 12);
+		memcpy(fpu->fpregs, current->thread.fp, 96);
+		/* Convert internal fpu reg representation
+		 * into long double format
+		 */
+		for (i = 0; i < 24; i += 3)
+			fpu->fpregs[i] = ((fpu->fpregs[i] & 0xffff0000) << 15) |
+			                 ((fpu->fpregs[i] & 0x0000ffff) << 16);
+		return 1;
+	}
+
+	/* First dump the fpu context to avoid protocol violation.  */
+	asm volatile ("fsave %0" :: "m" (fpustate[0]) : "memory");
+	if (!CPU_IS_060 ? !fpustate[0] : !fpustate[2])
+		return 0;
+
+	asm volatile ("fmovem %/fpiar/%/fpcr/%/fpsr,%0"
+		:: "m" (fpu->fpcntl[0])
+		: "memory");
+	asm volatile ("fmovemx %/fp0-%/fp7,%0"
+		:: "m" (fpu->fpregs[0])
+		: "memory");
+	return 1;
+}
+EXPORT_SYMBOL(dump_fpu);
+
+/*
+ * sys_execve() executes a new program.
+ */
+asmlinkage int sys_execve(const char __user *name,
+			  const char __user *const __user *argv,
+			  const char __user *const __user *envp)
+{
+	int error;
+	char * filename;
+	struct pt_regs *regs = (struct pt_regs *) &name;
+
+	filename = getname(name);
+	error = PTR_ERR(filename);
+	if (IS_ERR(filename))
+		return error;
+	error = do_execve(filename, argv, envp, regs);
+	putname(filename);
+	return error;
+}
+
+unsigned long get_wchan(struct task_struct *p)
+{
+	unsigned long fp, pc;
+	unsigned long stack_page;
+	int count = 0;
+	if (!p || p == current || p->state == TASK_RUNNING)
+		return 0;
+
+	stack_page = (unsigned long)task_stack_page(p);
+	fp = ((struct switch_stack *)p->thread.ksp)->a6;
+	do {
+		if (fp < stack_page+sizeof(struct thread_info) ||
+		    fp >= 8184+stack_page)
+			return 0;
+		pc = ((unsigned long *)fp)[1];
+		if (!in_sched_functions(pc))
+			return pc;
+		fp = *(unsigned long *) fp;
+	} while (count++ < 16);
+	return 0;
+}
diff --git a/arch/m68knommu/kernel/process.c b/arch/m68k/kernel/process_no.c
index e2a63af5d517..e2a63af5d517 100644
--- a/arch/m68knommu/kernel/process.c
+++ b/arch/m68k/kernel/process_no.c
diff --git a/arch/m68k/kernel/ptrace.c b/arch/m68k/kernel/ptrace.c
index 0b252683cefb..07a417550e94 100644
--- a/arch/m68k/kernel/ptrace.c
+++ b/arch/m68k/kernel/ptrace.c
@@ -1,277 +1,5 @@
-/*
- *  linux/arch/m68k/kernel/ptrace.c
- *
- *  Copyright (C) 1994 by Hamish Macdonald
- *  Taken from linux/kernel/ptrace.c and modified for M680x0.
- *  linux/kernel/ptrace.c is by Ross Biro 1/23/92, edited by Linus Torvalds
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License.  See the file COPYING in the main directory of
- * this archive for more details.
- */
-
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/errno.h>
-#include <linux/ptrace.h>
-#include <linux/user.h>
-#include <linux/signal.h>
-
-#include <asm/uaccess.h>
-#include <asm/page.h>
-#include <asm/pgtable.h>
-#include <asm/system.h>
-#include <asm/processor.h>
-
-/*
- * does not yet catch signals sent when the child dies.
- * in exit.c or in signal.c.
- */
-
-/* determines which bits in the SR the user has access to. */
-/* 1 = access 0 = no access */
-#define SR_MASK 0x001f
-
-/* sets the trace bits. */
-#define TRACE_BITS 0xC000
-#define T1_BIT 0x8000
-#define T0_BIT 0x4000
-
-/* Find the stack offset for a register, relative to thread.esp0. */
-#define PT_REG(reg)	((long)&((struct pt_regs *)0)->reg)
-#define SW_REG(reg)	((long)&((struct switch_stack *)0)->reg \
-			 - sizeof(struct switch_stack))
-/* Mapping from PT_xxx to the stack offset at which the register is
-   saved.  Notice that usp has no stack-slot and needs to be treated
-   specially (see get_reg/put_reg below). */
-static const int regoff[] = {
-	[0]	= PT_REG(d1),
-	[1]	= PT_REG(d2),
-	[2]	= PT_REG(d3),
-	[3]	= PT_REG(d4),
-	[4]	= PT_REG(d5),
-	[5]	= SW_REG(d6),
-	[6]	= SW_REG(d7),
-	[7]	= PT_REG(a0),
-	[8]	= PT_REG(a1),
-	[9]	= PT_REG(a2),
-	[10]	= SW_REG(a3),
-	[11]	= SW_REG(a4),
-	[12]	= SW_REG(a5),
-	[13]	= SW_REG(a6),
-	[14]	= PT_REG(d0),
-	[15]	= -1,
-	[16]	= PT_REG(orig_d0),
-	[17]	= PT_REG(sr),
-	[18]	= PT_REG(pc),
-};
-
-/*
- * Get contents of register REGNO in task TASK.
- */
-static inline long get_reg(struct task_struct *task, int regno)
-{
-	unsigned long *addr;
-
-	if (regno == PT_USP)
-		addr = &task->thread.usp;
-	else if (regno < ARRAY_SIZE(regoff))
-		addr = (unsigned long *)(task->thread.esp0 + regoff[regno]);
-	else
-		return 0;
-	/* Need to take stkadj into account. */
-	if (regno == PT_SR || regno == PT_PC) {
-		long stkadj = *(long *)(task->thread.esp0 + PT_REG(stkadj));
-		addr = (unsigned long *) ((unsigned long)addr + stkadj);
-		/* The sr is actually a 16 bit register.  */
-		if (regno == PT_SR)
-			return *(unsigned short *)addr;
-	}
-	return *addr;
-}
-
-/*
- * Write contents of register REGNO in task TASK.
- */
-static inline int put_reg(struct task_struct *task, int regno,
-			  unsigned long data)
-{
-	unsigned long *addr;
-
-	if (regno == PT_USP)
-		addr = &task->thread.usp;
-	else if (regno < ARRAY_SIZE(regoff))
-		addr = (unsigned long *)(task->thread.esp0 + regoff[regno]);
-	else
-		return -1;
-	/* Need to take stkadj into account. */
-	if (regno == PT_SR || regno == PT_PC) {
-		long stkadj = *(long *)(task->thread.esp0 + PT_REG(stkadj));
-		addr = (unsigned long *) ((unsigned long)addr + stkadj);
-		/* The sr is actually a 16 bit register.  */
-		if (regno == PT_SR) {
-			*(unsigned short *)addr = data;
-			return 0;
-		}
-	}
-	*addr = data;
-	return 0;
-}
-
-/*
- * Make sure the single step bit is not set.
- */
-static inline void singlestep_disable(struct task_struct *child)
-{
-	unsigned long tmp = get_reg(child, PT_SR) & ~TRACE_BITS;
-	put_reg(child, PT_SR, tmp);
-	clear_tsk_thread_flag(child, TIF_DELAYED_TRACE);
-}
-
-/*
- * Called by kernel/ptrace.c when detaching..
- */
-void ptrace_disable(struct task_struct *child)
-{
-	singlestep_disable(child);
-}
-
-void user_enable_single_step(struct task_struct *child)
-{
-	unsigned long tmp = get_reg(child, PT_SR) & ~TRACE_BITS;
-	put_reg(child, PT_SR, tmp | T1_BIT);
-	set_tsk_thread_flag(child, TIF_DELAYED_TRACE);
-}
-
-void user_enable_block_step(struct task_struct *child)
-{
-	unsigned long tmp = get_reg(child, PT_SR) & ~TRACE_BITS;
-	put_reg(child, PT_SR, tmp | T0_BIT);
-}
-
-void user_disable_single_step(struct task_struct *child)
-{
-	singlestep_disable(child);
-}
-
-long arch_ptrace(struct task_struct *child, long request,
-		 unsigned long addr, unsigned long data)
-{
-	unsigned long tmp;
-	int i, ret = 0;
-	int regno = addr >> 2; /* temporary hack. */
-	unsigned long __user *datap = (unsigned long __user *) data;
-
-	switch (request) {
-	/* read the word at location addr in the USER area. */
-	case PTRACE_PEEKUSR:
-		if (addr & 3)
-			goto out_eio;
-
-		if (regno >= 0 && regno < 19) {
-			tmp = get_reg(child, regno);
-		} else if (regno >= 21 && regno < 49) {
-			tmp = child->thread.fp[regno - 21];
-			/* Convert internal fpu reg representation
-			 * into long double format
-			 */
-			if (FPU_IS_EMU && (regno < 45) && !(regno % 3))
-				tmp = ((tmp & 0xffff0000) << 15) |
-				      ((tmp & 0x0000ffff) << 16);
-		} else
-			goto out_eio;
-		ret = put_user(tmp, datap);
-		break;
-
-	case PTRACE_POKEUSR:
-	/* write the word at location addr in the USER area */
-		if (addr & 3)
-			goto out_eio;
-
-		if (regno == PT_SR) {
-			data &= SR_MASK;
-			data |= get_reg(child, PT_SR) & ~SR_MASK;
-		}
-		if (regno >= 0 && regno < 19) {
-			if (put_reg(child, regno, data))
-				goto out_eio;
-		} else if (regno >= 21 && regno < 48) {
-			/* Convert long double format
-			 * into internal fpu reg representation
-			 */
-			if (FPU_IS_EMU && (regno < 45) && !(regno % 3)) {
-				data <<= 15;
-				data = (data & 0xffff0000) |
-				       ((data & 0x0000ffff) >> 1);
-			}
-			child->thread.fp[regno - 21] = data;
-		} else
-			goto out_eio;
-		break;
-
-	case PTRACE_GETREGS:	/* Get all gp regs from the child. */
-		for (i = 0; i < 19; i++) {
-			tmp = get_reg(child, i);
-			ret = put_user(tmp, datap);
-			if (ret)
-				break;
-			datap++;
-		}
-		break;
-
-	case PTRACE_SETREGS:	/* Set all gp regs in the child. */
-		for (i = 0; i < 19; i++) {
-			ret = get_user(tmp, datap);
-			if (ret)
-				break;
-			if (i == PT_SR) {
-				tmp &= SR_MASK;
-				tmp |= get_reg(child, PT_SR) & ~SR_MASK;
-			}
-			put_reg(child, i, tmp);
-			datap++;
-		}
-		break;
-
-	case PTRACE_GETFPREGS:	/* Get the child FPU state. */
-		if (copy_to_user(datap, &child->thread.fp,
-				 sizeof(struct user_m68kfp_struct)))
-			ret = -EFAULT;
-		break;
-
-	case PTRACE_SETFPREGS:	/* Set the child FPU state. */
-		if (copy_from_user(&child->thread.fp, datap,
-				   sizeof(struct user_m68kfp_struct)))
-			ret = -EFAULT;
-		break;
-
-	case PTRACE_GET_THREAD_AREA:
-		ret = put_user(task_thread_info(child)->tp_value, datap);
-		break;
-
-	default:
-		ret = ptrace_request(child, request, addr, data);
-		break;
-	}
-
-	return ret;
-out_eio:
-	return -EIO;
-}
-
-asmlinkage void syscall_trace(void)
-{
-	ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD)
-				 ? 0x80 : 0));
-	/*
-	 * this isn't the same as continuing with a signal, but it will do
-	 * for normal use.  strace only continues with a signal if the
-	 * stopping signal is not SIGTRAP.  -brl
-	 */
-	if (current->exit_code) {
-		send_sig(current->exit_code, current, 1);
-		current->exit_code = 0;
-	}
-}
+#ifdef CONFIG_MMU
+#include "ptrace_mm.c"
+#else
+#include "ptrace_no.c"
+#endif
diff --git a/arch/m68k/kernel/ptrace_mm.c b/arch/m68k/kernel/ptrace_mm.c
new file mode 100644
index 000000000000..0b252683cefb
--- /dev/null
+++ b/arch/m68k/kernel/ptrace_mm.c
@@ -0,0 +1,277 @@
+/*
+ *  linux/arch/m68k/kernel/ptrace.c
+ *
+ *  Copyright (C) 1994 by Hamish Macdonald
+ *  Taken from linux/kernel/ptrace.c and modified for M680x0.
+ *  linux/kernel/ptrace.c is by Ross Biro 1/23/92, edited by Linus Torvalds
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License.  See the file COPYING in the main directory of
+ * this archive for more details.
+ */
+
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/smp.h>
+#include <linux/errno.h>
+#include <linux/ptrace.h>
+#include <linux/user.h>
+#include <linux/signal.h>
+
+#include <asm/uaccess.h>
+#include <asm/page.h>
+#include <asm/pgtable.h>
+#include <asm/system.h>
+#include <asm/processor.h>
+
+/*
+ * does not yet catch signals sent when the child dies.
+ * in exit.c or in signal.c.
+ */
+
+/* determines which bits in the SR the user has access to. */
+/* 1 = access 0 = no access */
+#define SR_MASK 0x001f
+
+/* sets the trace bits. */
+#define TRACE_BITS 0xC000
+#define T1_BIT 0x8000
+#define T0_BIT 0x4000
+
+/* Find the stack offset for a register, relative to thread.esp0. */
+#define PT_REG(reg)	((long)&((struct pt_regs *)0)->reg)
+#define SW_REG(reg)	((long)&((struct switch_stack *)0)->reg \
+			 - sizeof(struct switch_stack))
+/* Mapping from PT_xxx to the stack offset at which the register is
+   saved.  Notice that usp has no stack-slot and needs to be treated
+   specially (see get_reg/put_reg below). */
+static const int regoff[] = {
+	[0]	= PT_REG(d1),
+	[1]	= PT_REG(d2),
+	[2]	= PT_REG(d3),
+	[3]	= PT_REG(d4),
+	[4]	= PT_REG(d5),
+	[5]	= SW_REG(d6),
+	[6]	= SW_REG(d7),
+	[7]	= PT_REG(a0),
+	[8]	= PT_REG(a1),
+	[9]	= PT_REG(a2),
+	[10]	= SW_REG(a3),
+	[11]	= SW_REG(a4),
+	[12]	= SW_REG(a5),
+	[13]	= SW_REG(a6),
+	[14]	= PT_REG(d0),
+	[15]	= -1,
+	[16]	= PT_REG(orig_d0),
+	[17]	= PT_REG(sr),
+	[18]	= PT_REG(pc),
+};
+
+/*
+ * Get contents of register REGNO in task TASK.
+ */
+static inline long get_reg(struct task_struct *task, int regno)
+{
+	unsigned long *addr;
+
+	if (regno == PT_USP)
+		addr = &task->thread.usp;
+	else if (regno < ARRAY_SIZE(regoff))
+		addr = (unsigned long *)(task->thread.esp0 + regoff[regno]);
+	else
+		return 0;
+	/* Need to take stkadj into account. */
+	if (regno == PT_SR || regno == PT_PC) {
+		long stkadj = *(long *)(task->thread.esp0 + PT_REG(stkadj));
+		addr = (unsigned long *) ((unsigned long)addr + stkadj);
+		/* The sr is actually a 16 bit register.  */
+		if (regno == PT_SR)
+			return *(unsigned short *)addr;
+	}
+	return *addr;
+}
+
+/*
+ * Write contents of register REGNO in task TASK.
+ */
+static inline int put_reg(struct task_struct *task, int regno,
+			  unsigned long data)
+{
+	unsigned long *addr;
+
+	if (regno == PT_USP)
+		addr = &task->thread.usp;
+	else if (regno < ARRAY_SIZE(regoff))
+		addr = (unsigned long *)(task->thread.esp0 + regoff[regno]);
+	else
+		return -1;
+	/* Need to take stkadj into account. */
+	if (regno == PT_SR || regno == PT_PC) {
+		long stkadj = *(long *)(task->thread.esp0 + PT_REG(stkadj));
+		addr = (unsigned long *) ((unsigned long)addr + stkadj);
+		/* The sr is actually a 16 bit register.  */
+		if (regno == PT_SR) {
+			*(unsigned short *)addr = data;
+			return 0;
+		}
+	}
+	*addr = data;
+	return 0;
+}
+
+/*
+ * Make sure the single step bit is not set.
+ */
+static inline void singlestep_disable(struct task_struct *child)
+{
+	unsigned long tmp = get_reg(child, PT_SR) & ~TRACE_BITS;
+	put_reg(child, PT_SR, tmp);
+	clear_tsk_thread_flag(child, TIF_DELAYED_TRACE);
+}
+
+/*
+ * Called by kernel/ptrace.c when detaching..
+ */
+void ptrace_disable(struct task_struct *child)
+{
+	singlestep_disable(child);
+}
+
+void user_enable_single_step(struct task_struct *child)
+{
+	unsigned long tmp = get_reg(child, PT_SR) & ~TRACE_BITS;
+	put_reg(child, PT_SR, tmp | T1_BIT);
+	set_tsk_thread_flag(child, TIF_DELAYED_TRACE);
+}
+
+void user_enable_block_step(struct task_struct *child)
+{
+	unsigned long tmp = get_reg(child, PT_SR) & ~TRACE_BITS;
+	put_reg(child, PT_SR, tmp | T0_BIT);
+}
+
+void user_disable_single_step(struct task_struct *child)
+{
+	singlestep_disable(child);
+}
+
+long arch_ptrace(struct task_struct *child, long request,
+		 unsigned long addr, unsigned long data)
+{
+	unsigned long tmp;
+	int i, ret = 0;
+	int regno = addr >> 2; /* temporary hack. */
+	unsigned long __user *datap = (unsigned long __user *) data;
+
+	switch (request) {
+	/* read the word at location addr in the USER area. */
+	case PTRACE_PEEKUSR:
+		if (addr & 3)
+			goto out_eio;
+
+		if (regno >= 0 && regno < 19) {
+			tmp = get_reg(child, regno);
+		} else if (regno >= 21 && regno < 49) {
+			tmp = child->thread.fp[regno - 21];
+			/* Convert internal fpu reg representation
+			 * into long double format
+			 */
+			if (FPU_IS_EMU && (regno < 45) && !(regno % 3))
+				tmp = ((tmp & 0xffff0000) << 15) |
+				      ((tmp & 0x0000ffff) << 16);
+		} else
+			goto out_eio;
+		ret = put_user(tmp, datap);
+		break;
+
+	case PTRACE_POKEUSR:
+	/* write the word at location addr in the USER area */
+		if (addr & 3)
+			goto out_eio;
+
+		if (regno == PT_SR) {
+			data &= SR_MASK;
+			data |= get_reg(child, PT_SR) & ~SR_MASK;
+		}
+		if (regno >= 0 && regno < 19) {
+			if (put_reg(child, regno, data))
+				goto out_eio;
+		} else if (regno >= 21 && regno < 48) {
+			/* Convert long double format
+			 * into internal fpu reg representation
+			 */
+			if (FPU_IS_EMU && (regno < 45) && !(regno % 3)) {
+				data <<= 15;
+				data = (data & 0xffff0000) |
+				       ((data & 0x0000ffff) >> 1);
+			}
+			child->thread.fp[regno - 21] = data;
+		} else
+			goto out_eio;
+		break;
+
+	case PTRACE_GETREGS:	/* Get all gp regs from the child. */
+		for (i = 0; i < 19; i++) {
+			tmp = get_reg(child, i);
+			ret = put_user(tmp, datap);
+			if (ret)
+				break;
+			datap++;
+		}
+		break;
+
+	case PTRACE_SETREGS:	/* Set all gp regs in the child. */
+		for (i = 0; i < 19; i++) {
+			ret = get_user(tmp, datap);
+			if (ret)
+				break;
+			if (i == PT_SR) {
+				tmp &= SR_MASK;
+				tmp |= get_reg(child, PT_SR) & ~SR_MASK;
+			}
+			put_reg(child, i, tmp);
+			datap++;
+		}
+		break;
+
+	case PTRACE_GETFPREGS:	/* Get the child FPU state. */
+		if (copy_to_user(datap, &child->thread.fp,
+				 sizeof(struct user_m68kfp_struct)))
+			ret = -EFAULT;
+		break;
+
+	case PTRACE_SETFPREGS:	/* Set the child FPU state. */
+		if (copy_from_user(&child->thread.fp, datap,
+				   sizeof(struct user_m68kfp_struct)))
+			ret = -EFAULT;
+		break;
+
+	case PTRACE_GET_THREAD_AREA:
+		ret = put_user(task_thread_info(child)->tp_value, datap);
+		break;
+
+	default:
+		ret = ptrace_request(child, request, addr, data);
+		break;
+	}
+
+	return ret;
+out_eio:
+	return -EIO;
+}
+
+asmlinkage void syscall_trace(void)
+{
+	ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD)
+				 ? 0x80 : 0));
+	/*
+	 * this isn't the same as continuing with a signal, but it will do
+	 * for normal use.  strace only continues with a signal if the
+	 * stopping signal is not SIGTRAP.  -brl
+	 */
+	if (current->exit_code) {
+		send_sig(current->exit_code, current, 1);
+		current->exit_code = 0;
+	}
+}
diff --git a/arch/m68knommu/kernel/ptrace.c b/arch/m68k/kernel/ptrace_no.c
index 6709fb707335..6709fb707335 100644
--- a/arch/m68knommu/kernel/ptrace.c
+++ b/arch/m68k/kernel/ptrace_no.c
diff --git a/arch/m68k/kernel/setup.c b/arch/m68k/kernel/setup.c
index 334d83640376..4bf129f1d2e2 100644
--- a/arch/m68k/kernel/setup.c
+++ b/arch/m68k/kernel/setup.c
@@ -1,533 +1,5 @@
-/*
- *  linux/arch/m68k/kernel/setup.c
- *
- *  Copyright (C) 1995  Hamish Macdonald
- */
-
-/*
- * This file handles the architecture-dependent parts of system setup
- */
-
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/sched.h>
-#include <linux/delay.h>
-#include <linux/interrupt.h>
-#include <linux/fs.h>
-#include <linux/console.h>
-#include <linux/genhd.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-#include <linux/init.h>
-#include <linux/bootmem.h>
-#include <linux/proc_fs.h>
-#include <linux/seq_file.h>
-#include <linux/module.h>
-#include <linux/initrd.h>
-
-#include <asm/bootinfo.h>
-#include <asm/sections.h>
-#include <asm/setup.h>
-#include <asm/fpu.h>
-#include <asm/irq.h>
-#include <asm/io.h>
-#include <asm/machdep.h>
-#ifdef CONFIG_AMIGA
-#include <asm/amigahw.h>
-#endif
-#ifdef CONFIG_ATARI
-#include <asm/atarihw.h>
-#include <asm/atari_stram.h>
-#endif
-#ifdef CONFIG_SUN3X
-#include <asm/dvma.h>
-#endif
-#include <asm/natfeat.h>
-
-#if !FPSTATESIZE || !NR_IRQS
-#warning No CPU/platform type selected, your kernel will not work!
-#warning Are you building an allnoconfig kernel?
-#endif
-
-unsigned long m68k_machtype;
-EXPORT_SYMBOL(m68k_machtype);
-unsigned long m68k_cputype;
-EXPORT_SYMBOL(m68k_cputype);
-unsigned long m68k_fputype;
-unsigned long m68k_mmutype;
-EXPORT_SYMBOL(m68k_mmutype);
-#ifdef CONFIG_VME
-unsigned long vme_brdtype;
-EXPORT_SYMBOL(vme_brdtype);
-#endif
-
-int m68k_is040or060;
-EXPORT_SYMBOL(m68k_is040or060);
-
-extern unsigned long availmem;
-
-int m68k_num_memory;
-EXPORT_SYMBOL(m68k_num_memory);
-int m68k_realnum_memory;
-EXPORT_SYMBOL(m68k_realnum_memory);
-unsigned long m68k_memoffset;
-struct mem_info m68k_memory[NUM_MEMINFO];
-EXPORT_SYMBOL(m68k_memory);
-
-struct mem_info m68k_ramdisk;
-
-static char m68k_command_line[CL_SIZE];
-
-void (*mach_sched_init) (irq_handler_t handler) __initdata = NULL;
-/* machine dependent irq functions */
-void (*mach_init_IRQ) (void) __initdata = NULL;
-void (*mach_get_model) (char *model);
-void (*mach_get_hardware_list) (struct seq_file *m);
-/* machine dependent timer functions */
-unsigned long (*mach_gettimeoffset) (void);
-int (*mach_hwclk) (int, struct rtc_time*);
-EXPORT_SYMBOL(mach_hwclk);
-int (*mach_set_clock_mmss) (unsigned long);
-unsigned int (*mach_get_ss)(void);
-int (*mach_get_rtc_pll)(struct rtc_pll_info *);
-int (*mach_set_rtc_pll)(struct rtc_pll_info *);
-EXPORT_SYMBOL(mach_get_ss);
-EXPORT_SYMBOL(mach_get_rtc_pll);
-EXPORT_SYMBOL(mach_set_rtc_pll);
-void (*mach_reset)( void );
-void (*mach_halt)( void );
-void (*mach_power_off)( void );
-long mach_max_dma_address = 0x00ffffff; /* default set to the lower 16MB */
-#ifdef CONFIG_HEARTBEAT
-void (*mach_heartbeat) (int);
-EXPORT_SYMBOL(mach_heartbeat);
-#endif
-#ifdef CONFIG_M68K_L2_CACHE
-void (*mach_l2_flush) (int);
-#endif
-#if defined(CONFIG_INPUT_M68K_BEEP) || defined(CONFIG_INPUT_M68K_BEEP_MODULE)
-void (*mach_beep)(unsigned int, unsigned int);
-EXPORT_SYMBOL(mach_beep);
-#endif
-#if defined(CONFIG_ISA) && defined(MULTI_ISA)
-int isa_type;
-int isa_sex;
-EXPORT_SYMBOL(isa_type);
-EXPORT_SYMBOL(isa_sex);
-#endif
-
-extern int amiga_parse_bootinfo(const struct bi_record *);
-extern int atari_parse_bootinfo(const struct bi_record *);
-extern int mac_parse_bootinfo(const struct bi_record *);
-extern int q40_parse_bootinfo(const struct bi_record *);
-extern int bvme6000_parse_bootinfo(const struct bi_record *);
-extern int mvme16x_parse_bootinfo(const struct bi_record *);
-extern int mvme147_parse_bootinfo(const struct bi_record *);
-extern int hp300_parse_bootinfo(const struct bi_record *);
-extern int apollo_parse_bootinfo(const struct bi_record *);
-
-extern void config_amiga(void);
-extern void config_atari(void);
-extern void config_mac(void);
-extern void config_sun3(void);
-extern void config_apollo(void);
-extern void config_mvme147(void);
-extern void config_mvme16x(void);
-extern void config_bvme6000(void);
-extern void config_hp300(void);
-extern void config_q40(void);
-extern void config_sun3x(void);
-
-#define MASK_256K 0xfffc0000
-
-extern void paging_init(void);
-
-static void __init m68k_parse_bootinfo(const struct bi_record *record)
-{
-	while (record->tag != BI_LAST) {
-		int unknown = 0;
-		const unsigned long *data = record->data;
-
-		switch (record->tag) {
-		case BI_MACHTYPE:
-		case BI_CPUTYPE:
-		case BI_FPUTYPE:
-		case BI_MMUTYPE:
-			/* Already set up by head.S */
-			break;
-
-		case BI_MEMCHUNK:
-			if (m68k_num_memory < NUM_MEMINFO) {
-				m68k_memory[m68k_num_memory].addr = data[0];
-				m68k_memory[m68k_num_memory].size = data[1];
-				m68k_num_memory++;
-			} else
-				printk("m68k_parse_bootinfo: too many memory chunks\n");
-			break;
-
-		case BI_RAMDISK:
-			m68k_ramdisk.addr = data[0];
-			m68k_ramdisk.size = data[1];
-			break;
-
-		case BI_COMMAND_LINE:
-			strlcpy(m68k_command_line, (const char *)data,
-				sizeof(m68k_command_line));
-			break;
-
-		default:
-			if (MACH_IS_AMIGA)
-				unknown = amiga_parse_bootinfo(record);
-			else if (MACH_IS_ATARI)
-				unknown = atari_parse_bootinfo(record);
-			else if (MACH_IS_MAC)
-				unknown = mac_parse_bootinfo(record);
-			else if (MACH_IS_Q40)
-				unknown = q40_parse_bootinfo(record);
-			else if (MACH_IS_BVME6000)
-				unknown = bvme6000_parse_bootinfo(record);
-			else if (MACH_IS_MVME16x)
-				unknown = mvme16x_parse_bootinfo(record);
-			else if (MACH_IS_MVME147)
-				unknown = mvme147_parse_bootinfo(record);
-			else if (MACH_IS_HP300)
-				unknown = hp300_parse_bootinfo(record);
-			else if (MACH_IS_APOLLO)
-				unknown = apollo_parse_bootinfo(record);
-			else
-				unknown = 1;
-		}
-		if (unknown)
-			printk("m68k_parse_bootinfo: unknown tag 0x%04x ignored\n",
-			       record->tag);
-		record = (struct bi_record *)((unsigned long)record +
-					      record->size);
-	}
-
-	m68k_realnum_memory = m68k_num_memory;
-#ifdef CONFIG_SINGLE_MEMORY_CHUNK
-	if (m68k_num_memory > 1) {
-		printk("Ignoring last %i chunks of physical memory\n",
-		       (m68k_num_memory - 1));
-		m68k_num_memory = 1;
-	}
-#endif
-}
-
-void __init setup_arch(char **cmdline_p)
-{
-	int i;
-
-	/* The bootinfo is located right after the kernel bss */
-	m68k_parse_bootinfo((const struct bi_record *)_end);
-
-	if (CPU_IS_040)
-		m68k_is040or060 = 4;
-	else if (CPU_IS_060)
-		m68k_is040or060 = 6;
-
-	/* FIXME: m68k_fputype is passed in by Penguin booter, which can
-	 * be confused by software FPU emulation. BEWARE.
-	 * We should really do our own FPU check at startup.
-	 * [what do we do with buggy 68LC040s? if we have problems
-	 *  with them, we should add a test to check_bugs() below] */
-#ifndef CONFIG_M68KFPU_EMU_ONLY
-	/* clear the fpu if we have one */
-	if (m68k_fputype & (FPU_68881|FPU_68882|FPU_68040|FPU_68060)) {
-		volatile int zero = 0;
-		asm volatile ("frestore %0" : : "m" (zero));
-	}
-#endif
-
-	if (CPU_IS_060) {
-		u32 pcr;
-
-		asm (".chip 68060; movec %%pcr,%0; .chip 68k"
-		     : "=d" (pcr));
-		if (((pcr >> 8) & 0xff) <= 5) {
-			printk("Enabling workaround for errata I14\n");
-			asm (".chip 68060; movec %0,%%pcr; .chip 68k"
-			     : : "d" (pcr | 0x20));
-		}
-	}
-
-	init_mm.start_code = PAGE_OFFSET;
-	init_mm.end_code = (unsigned long)_etext;
-	init_mm.end_data = (unsigned long)_edata;
-	init_mm.brk = (unsigned long)_end;
-
-	*cmdline_p = m68k_command_line;
-	memcpy(boot_command_line, *cmdline_p, CL_SIZE);
-
-	parse_early_param();
-
-#ifdef CONFIG_DUMMY_CONSOLE
-	conswitchp = &dummy_con;
-#endif
-
-	switch (m68k_machtype) {
-#ifdef CONFIG_AMIGA
-	case MACH_AMIGA:
-		config_amiga();
-		break;
-#endif
-#ifdef CONFIG_ATARI
-	case MACH_ATARI:
-		config_atari();
-		break;
-#endif
-#ifdef CONFIG_MAC
-	case MACH_MAC:
-		config_mac();
-		break;
-#endif
-#ifdef CONFIG_SUN3
-	case MACH_SUN3:
-		config_sun3();
-		break;
-#endif
-#ifdef CONFIG_APOLLO
-	case MACH_APOLLO:
-		config_apollo();
-		break;
-#endif
-#ifdef CONFIG_MVME147
-	case MACH_MVME147:
-		config_mvme147();
-		break;
-#endif
-#ifdef CONFIG_MVME16x
-	case MACH_MVME16x:
-		config_mvme16x();
-		break;
-#endif
-#ifdef CONFIG_BVME6000
-	case MACH_BVME6000:
-		config_bvme6000();
-		break;
-#endif
-#ifdef CONFIG_HP300
-	case MACH_HP300:
-		config_hp300();
-		break;
-#endif
-#ifdef CONFIG_Q40
-	case MACH_Q40:
-		config_q40();
-		break;
-#endif
-#ifdef CONFIG_SUN3X
-	case MACH_SUN3X:
-		config_sun3x();
-		break;
-#endif
-	default:
-		panic("No configuration setup");
-	}
-
-#ifdef CONFIG_NATFEAT
-	nf_init();
-#endif
-
-	paging_init();
-
-#ifndef CONFIG_SUN3
-	for (i = 1; i < m68k_num_memory; i++)
-		free_bootmem_node(NODE_DATA(i), m68k_memory[i].addr,
-				  m68k_memory[i].size);
-#ifdef CONFIG_BLK_DEV_INITRD
-	if (m68k_ramdisk.size) {
-		reserve_bootmem_node(__virt_to_node(phys_to_virt(m68k_ramdisk.addr)),
-				     m68k_ramdisk.addr, m68k_ramdisk.size,
-				     BOOTMEM_DEFAULT);
-		initrd_start = (unsigned long)phys_to_virt(m68k_ramdisk.addr);
-		initrd_end = initrd_start + m68k_ramdisk.size;
-		printk("initrd: %08lx - %08lx\n", initrd_start, initrd_end);
-	}
-#endif
-
-#ifdef CONFIG_ATARI
-	if (MACH_IS_ATARI)
-		atari_stram_reserve_pages((void *)availmem);
-#endif
-#ifdef CONFIG_SUN3X
-	if (MACH_IS_SUN3X) {
-		dvma_init();
-	}
-#endif
-
-#endif /* !CONFIG_SUN3 */
-
-/* set ISA defs early as possible */
-#if defined(CONFIG_ISA) && defined(MULTI_ISA)
-	if (MACH_IS_Q40) {
-		isa_type = ISA_TYPE_Q40;
-		isa_sex = 0;
-	}
-#ifdef CONFIG_AMIGA_PCMCIA
-	if (MACH_IS_AMIGA && AMIGAHW_PRESENT(PCMCIA)) {
-		isa_type = ISA_TYPE_AG;
-		isa_sex = 1;
-	}
-#endif
-#endif
-}
-
-static int show_cpuinfo(struct seq_file *m, void *v)
-{
-	const char *cpu, *mmu, *fpu;
-	unsigned long clockfreq, clockfactor;
-
-#define LOOP_CYCLES_68020	(8)
-#define LOOP_CYCLES_68030	(8)
-#define LOOP_CYCLES_68040	(3)
-#define LOOP_CYCLES_68060	(1)
-
-	if (CPU_IS_020) {
-		cpu = "68020";
-		clockfactor = LOOP_CYCLES_68020;
-	} else if (CPU_IS_030) {
-		cpu = "68030";
-		clockfactor = LOOP_CYCLES_68030;
-	} else if (CPU_IS_040) {
-		cpu = "68040";
-		clockfactor = LOOP_CYCLES_68040;
-	} else if (CPU_IS_060) {
-		cpu = "68060";
-		clockfactor = LOOP_CYCLES_68060;
-	} else {
-		cpu = "680x0";
-		clockfactor = 0;
-	}
-
-#ifdef CONFIG_M68KFPU_EMU_ONLY
-	fpu = "none(soft float)";
+#ifdef CONFIG_MMU
+#include "setup_mm.c"
 #else
-	if (m68k_fputype & FPU_68881)
-		fpu = "68881";
-	else if (m68k_fputype & FPU_68882)
-		fpu = "68882";
-	else if (m68k_fputype & FPU_68040)
-		fpu = "68040";
-	else if (m68k_fputype & FPU_68060)
-		fpu = "68060";
-	else if (m68k_fputype & FPU_SUNFPA)
-		fpu = "Sun FPA";
-	else
-		fpu = "none";
-#endif
-
-	if (m68k_mmutype & MMU_68851)
-		mmu = "68851";
-	else if (m68k_mmutype & MMU_68030)
-		mmu = "68030";
-	else if (m68k_mmutype & MMU_68040)
-		mmu = "68040";
-	else if (m68k_mmutype & MMU_68060)
-		mmu = "68060";
-	else if (m68k_mmutype & MMU_SUN3)
-		mmu = "Sun-3";
-	else if (m68k_mmutype & MMU_APOLLO)
-		mmu = "Apollo";
-	else
-		mmu = "unknown";
-
-	clockfreq = loops_per_jiffy * HZ * clockfactor;
-
-	seq_printf(m, "CPU:\t\t%s\n"
-		   "MMU:\t\t%s\n"
-		   "FPU:\t\t%s\n"
-		   "Clocking:\t%lu.%1luMHz\n"
-		   "BogoMips:\t%lu.%02lu\n"
-		   "Calibration:\t%lu loops\n",
-		   cpu, mmu, fpu,
-		   clockfreq/1000000,(clockfreq/100000)%10,
-		   loops_per_jiffy/(500000/HZ),(loops_per_jiffy/(5000/HZ))%100,
-		   loops_per_jiffy);
-	return 0;
-}
-
-static void *c_start(struct seq_file *m, loff_t *pos)
-{
-	return *pos < 1 ? (void *)1 : NULL;
-}
-static void *c_next(struct seq_file *m, void *v, loff_t *pos)
-{
-	++*pos;
-	return NULL;
-}
-static void c_stop(struct seq_file *m, void *v)
-{
-}
-const struct seq_operations cpuinfo_op = {
-	.start	= c_start,
-	.next	= c_next,
-	.stop	= c_stop,
-	.show	= show_cpuinfo,
-};
-
-#ifdef CONFIG_PROC_HARDWARE
-static int hardware_proc_show(struct seq_file *m, void *v)
-{
-	char model[80];
-	unsigned long mem;
-	int i;
-
-	if (mach_get_model)
-		mach_get_model(model);
-	else
-		strcpy(model, "Unknown m68k");
-
-	seq_printf(m, "Model:\t\t%s\n", model);
-	for (mem = 0, i = 0; i < m68k_num_memory; i++)
-		mem += m68k_memory[i].size;
-	seq_printf(m, "System Memory:\t%ldK\n", mem >> 10);
-
-	if (mach_get_hardware_list)
-		mach_get_hardware_list(m);
-
-	return 0;
-}
-
-static int hardware_proc_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, hardware_proc_show, NULL);
-}
-
-static const struct file_operations hardware_proc_fops = {
-	.open		= hardware_proc_open,
-	.read		= seq_read,
-	.llseek		= seq_lseek,
-	.release	= single_release,
-};
-
-static int __init proc_hardware_init(void)
-{
-	proc_create("hardware", 0, NULL, &hardware_proc_fops);
-	return 0;
-}
-module_init(proc_hardware_init);
+#include "setup_no.c"
 #endif
-
-void check_bugs(void)
-{
-#ifndef CONFIG_M68KFPU_EMU
-	if (m68k_fputype == 0) {
-		printk(KERN_EMERG "*** YOU DO NOT HAVE A FLOATING POINT UNIT, "
-			"WHICH IS REQUIRED BY LINUX/M68K ***\n");
-		printk(KERN_EMERG "Upgrade your hardware or join the FPU "
-			"emulation project\n");
-		panic("no FPU");
-	}
-#endif /* !CONFIG_M68KFPU_EMU */
-}
-
-#ifdef CONFIG_ADB
-static int __init adb_probe_sync_enable (char *str) {
-	extern int __adb_probe_sync;
-	__adb_probe_sync = 1;
-	return 1;
-}
-
-__setup("adb_sync", adb_probe_sync_enable);
-#endif /* CONFIG_ADB */
diff --git a/arch/m68k/kernel/setup_mm.c b/arch/m68k/kernel/setup_mm.c
new file mode 100644
index 000000000000..334d83640376
--- /dev/null
+++ b/arch/m68k/kernel/setup_mm.c
@@ -0,0 +1,533 @@
+/*
+ *  linux/arch/m68k/kernel/setup.c
+ *
+ *  Copyright (C) 1995  Hamish Macdonald
+ */
+
+/*
+ * This file handles the architecture-dependent parts of system setup
+ */
+
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/sched.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/fs.h>
+#include <linux/console.h>
+#include <linux/genhd.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/init.h>
+#include <linux/bootmem.h>
+#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
+#include <linux/module.h>
+#include <linux/initrd.h>
+
+#include <asm/bootinfo.h>
+#include <asm/sections.h>
+#include <asm/setup.h>
+#include <asm/fpu.h>
+#include <asm/irq.h>
+#include <asm/io.h>
+#include <asm/machdep.h>
+#ifdef CONFIG_AMIGA
+#include <asm/amigahw.h>
+#endif
+#ifdef CONFIG_ATARI
+#include <asm/atarihw.h>
+#include <asm/atari_stram.h>
+#endif
+#ifdef CONFIG_SUN3X
+#include <asm/dvma.h>
+#endif
+#include <asm/natfeat.h>
+
+#if !FPSTATESIZE || !NR_IRQS
+#warning No CPU/platform type selected, your kernel will not work!
+#warning Are you building an allnoconfig kernel?
+#endif
+
+unsigned long m68k_machtype;
+EXPORT_SYMBOL(m68k_machtype);
+unsigned long m68k_cputype;
+EXPORT_SYMBOL(m68k_cputype);
+unsigned long m68k_fputype;
+unsigned long m68k_mmutype;
+EXPORT_SYMBOL(m68k_mmutype);
+#ifdef CONFIG_VME
+unsigned long vme_brdtype;
+EXPORT_SYMBOL(vme_brdtype);
+#endif
+
+int m68k_is040or060;
+EXPORT_SYMBOL(m68k_is040or060);
+
+extern unsigned long availmem;
+
+int m68k_num_memory;
+EXPORT_SYMBOL(m68k_num_memory);
+int m68k_realnum_memory;
+EXPORT_SYMBOL(m68k_realnum_memory);
+unsigned long m68k_memoffset;
+struct mem_info m68k_memory[NUM_MEMINFO];
+EXPORT_SYMBOL(m68k_memory);
+
+struct mem_info m68k_ramdisk;
+
+static char m68k_command_line[CL_SIZE];
+
+void (*mach_sched_init) (irq_handler_t handler) __initdata = NULL;
+/* machine dependent irq functions */
+void (*mach_init_IRQ) (void) __initdata = NULL;
+void (*mach_get_model) (char *model);
+void (*mach_get_hardware_list) (struct seq_file *m);
+/* machine dependent timer functions */
+unsigned long (*mach_gettimeoffset) (void);
+int (*mach_hwclk) (int, struct rtc_time*);
+EXPORT_SYMBOL(mach_hwclk);
+int (*mach_set_clock_mmss) (unsigned long);
+unsigned int (*mach_get_ss)(void);
+int (*mach_get_rtc_pll)(struct rtc_pll_info *);
+int (*mach_set_rtc_pll)(struct rtc_pll_info *);
+EXPORT_SYMBOL(mach_get_ss);
+EXPORT_SYMBOL(mach_get_rtc_pll);
+EXPORT_SYMBOL(mach_set_rtc_pll);
+void (*mach_reset)( void );
+void (*mach_halt)( void );
+void (*mach_power_off)( void );
+long mach_max_dma_address = 0x00ffffff; /* default set to the lower 16MB */
+#ifdef CONFIG_HEARTBEAT
+void (*mach_heartbeat) (int);
+EXPORT_SYMBOL(mach_heartbeat);
+#endif
+#ifdef CONFIG_M68K_L2_CACHE
+void (*mach_l2_flush) (int);
+#endif
+#if defined(CONFIG_INPUT_M68K_BEEP) || defined(CONFIG_INPUT_M68K_BEEP_MODULE)
+void (*mach_beep)(unsigned int, unsigned int);
+EXPORT_SYMBOL(mach_beep);
+#endif
+#if defined(CONFIG_ISA) && defined(MULTI_ISA)
+int isa_type;
+int isa_sex;
+EXPORT_SYMBOL(isa_type);
+EXPORT_SYMBOL(isa_sex);
+#endif
+
+extern int amiga_parse_bootinfo(const struct bi_record *);
+extern int atari_parse_bootinfo(const struct bi_record *);
+extern int mac_parse_bootinfo(const struct bi_record *);
+extern int q40_parse_bootinfo(const struct bi_record *);
+extern int bvme6000_parse_bootinfo(const struct bi_record *);
+extern int mvme16x_parse_bootinfo(const struct bi_record *);
+extern int mvme147_parse_bootinfo(const struct bi_record *);
+extern int hp300_parse_bootinfo(const struct bi_record *);
+extern int apollo_parse_bootinfo(const struct bi_record *);
+
+extern void config_amiga(void);
+extern void config_atari(void);
+extern void config_mac(void);
+extern void config_sun3(void);
+extern void config_apollo(void);
+extern void config_mvme147(void);
+extern void config_mvme16x(void);
+extern void config_bvme6000(void);
+extern void config_hp300(void);
+extern void config_q40(void);
+extern void config_sun3x(void);
+
+#define MASK_256K 0xfffc0000
+
+extern void paging_init(void);
+
+static void __init m68k_parse_bootinfo(const struct bi_record *record)
+{
+	while (record->tag != BI_LAST) {
+		int unknown = 0;
+		const unsigned long *data = record->data;
+
+		switch (record->tag) {
+		case BI_MACHTYPE:
+		case BI_CPUTYPE:
+		case BI_FPUTYPE:
+		case BI_MMUTYPE:
+			/* Already set up by head.S */
+			break;
+
+		case BI_MEMCHUNK:
+			if (m68k_num_memory < NUM_MEMINFO) {
+				m68k_memory[m68k_num_memory].addr = data[0];
+				m68k_memory[m68k_num_memory].size = data[1];
+				m68k_num_memory++;
+			} else
+				printk("m68k_parse_bootinfo: too many memory chunks\n");
+			break;
+
+		case BI_RAMDISK:
+			m68k_ramdisk.addr = data[0];
+			m68k_ramdisk.size = data[1];
+			break;
+
+		case BI_COMMAND_LINE:
+			strlcpy(m68k_command_line, (const char *)data,
+				sizeof(m68k_command_line));
+			break;
+
+		default:
+			if (MACH_IS_AMIGA)
+				unknown = amiga_parse_bootinfo(record);
+			else if (MACH_IS_ATARI)
+				unknown = atari_parse_bootinfo(record);
+			else if (MACH_IS_MAC)
+				unknown = mac_parse_bootinfo(record);
+			else if (MACH_IS_Q40)
+				unknown = q40_parse_bootinfo(record);
+			else if (MACH_IS_BVME6000)
+				unknown = bvme6000_parse_bootinfo(record);
+			else if (MACH_IS_MVME16x)
+				unknown = mvme16x_parse_bootinfo(record);
+			else if (MACH_IS_MVME147)
+				unknown = mvme147_parse_bootinfo(record);
+			else if (MACH_IS_HP300)
+				unknown = hp300_parse_bootinfo(record);
+			else if (MACH_IS_APOLLO)
+				unknown = apollo_parse_bootinfo(record);
+			else
+				unknown = 1;
+		}
+		if (unknown)
+			printk("m68k_parse_bootinfo: unknown tag 0x%04x ignored\n",
+			       record->tag);
+		record = (struct bi_record *)((unsigned long)record +
+					      record->size);
+	}
+
+	m68k_realnum_memory = m68k_num_memory;
+#ifdef CONFIG_SINGLE_MEMORY_CHUNK
+	if (m68k_num_memory > 1) {
+		printk("Ignoring last %i chunks of physical memory\n",
+		       (m68k_num_memory - 1));
+		m68k_num_memory = 1;
+	}
+#endif
+}
+
+void __init setup_arch(char **cmdline_p)
+{
+	int i;
+
+	/* The bootinfo is located right after the kernel bss */
+	m68k_parse_bootinfo((const struct bi_record *)_end);
+
+	if (CPU_IS_040)
+		m68k_is040or060 = 4;
+	else if (CPU_IS_060)
+		m68k_is040or060 = 6;
+
+	/* FIXME: m68k_fputype is passed in by Penguin booter, which can
+	 * be confused by software FPU emulation. BEWARE.
+	 * We should really do our own FPU check at startup.
+	 * [what do we do with buggy 68LC040s? if we have problems
+	 *  with them, we should add a test to check_bugs() below] */
+#ifndef CONFIG_M68KFPU_EMU_ONLY
+	/* clear the fpu if we have one */
+	if (m68k_fputype & (FPU_68881|FPU_68882|FPU_68040|FPU_68060)) {
+		volatile int zero = 0;
+		asm volatile ("frestore %0" : : "m" (zero));
+	}
+#endif
+
+	if (CPU_IS_060) {
+		u32 pcr;
+
+		asm (".chip 68060; movec %%pcr,%0; .chip 68k"
+		     : "=d" (pcr));
+		if (((pcr >> 8) & 0xff) <= 5) {
+			printk("Enabling workaround for errata I14\n");
+			asm (".chip 68060; movec %0,%%pcr; .chip 68k"
+			     : : "d" (pcr | 0x20));
+		}
+	}
+
+	init_mm.start_code = PAGE_OFFSET;
+	init_mm.end_code = (unsigned long)_etext;
+	init_mm.end_data = (unsigned long)_edata;
+	init_mm.brk = (unsigned long)_end;
+
+	*cmdline_p = m68k_command_line;
+	memcpy(boot_command_line, *cmdline_p, CL_SIZE);
+
+	parse_early_param();
+
+#ifdef CONFIG_DUMMY_CONSOLE
+	conswitchp = &dummy_con;
+#endif
+
+	switch (m68k_machtype) {
+#ifdef CONFIG_AMIGA
+	case MACH_AMIGA:
+		config_amiga();
+		break;
+#endif
+#ifdef CONFIG_ATARI
+	case MACH_ATARI:
+		config_atari();
+		break;
+#endif
+#ifdef CONFIG_MAC
+	case MACH_MAC:
+		config_mac();
+		break;
+#endif
+#ifdef CONFIG_SUN3
+	case MACH_SUN3:
+		config_sun3();
+		break;
+#endif
+#ifdef CONFIG_APOLLO
+	case MACH_APOLLO:
+		config_apollo();
+		break;
+#endif
+#ifdef CONFIG_MVME147
+	case MACH_MVME147:
+		config_mvme147();
+		break;
+#endif
+#ifdef CONFIG_MVME16x
+	case MACH_MVME16x:
+		config_mvme16x();
+		break;
+#endif
+#ifdef CONFIG_BVME6000
+	case MACH_BVME6000:
+		config_bvme6000();
+		break;
+#endif
+#ifdef CONFIG_HP300
+	case MACH_HP300:
+		config_hp300();
+		break;
+#endif
+#ifdef CONFIG_Q40
+	case MACH_Q40:
+		config_q40();
+		break;
+#endif
+#ifdef CONFIG_SUN3X
+	case MACH_SUN3X:
+		config_sun3x();
+		break;
+#endif
+	default:
+		panic("No configuration setup");
+	}
+
+#ifdef CONFIG_NATFEAT
+	nf_init();
+#endif
+
+	paging_init();
+
+#ifndef CONFIG_SUN3
+	for (i = 1; i < m68k_num_memory; i++)
+		free_bootmem_node(NODE_DATA(i), m68k_memory[i].addr,
+				  m68k_memory[i].size);
+#ifdef CONFIG_BLK_DEV_INITRD
+	if (m68k_ramdisk.size) {
+		reserve_bootmem_node(__virt_to_node(phys_to_virt(m68k_ramdisk.addr)),
+				     m68k_ramdisk.addr, m68k_ramdisk.size,
+				     BOOTMEM_DEFAULT);
+		initrd_start = (unsigned long)phys_to_virt(m68k_ramdisk.addr);
+		initrd_end = initrd_start + m68k_ramdisk.size;
+		printk("initrd: %08lx - %08lx\n", initrd_start, initrd_end);
+	}
+#endif
+
+#ifdef CONFIG_ATARI
+	if (MACH_IS_ATARI)
+		atari_stram_reserve_pages((void *)availmem);
+#endif
+#ifdef CONFIG_SUN3X
+	if (MACH_IS_SUN3X) {
+		dvma_init();
+	}
+#endif
+
+#endif /* !CONFIG_SUN3 */
+
+/* set ISA defs early as possible */
+#if defined(CONFIG_ISA) && defined(MULTI_ISA)
+	if (MACH_IS_Q40) {
+		isa_type = ISA_TYPE_Q40;
+		isa_sex = 0;
+	}
+#ifdef CONFIG_AMIGA_PCMCIA
+	if (MACH_IS_AMIGA && AMIGAHW_PRESENT(PCMCIA)) {
+		isa_type = ISA_TYPE_AG;
+		isa_sex = 1;
+	}
+#endif
+#endif
+}
+
+static int show_cpuinfo(struct seq_file *m, void *v)
+{
+	const char *cpu, *mmu, *fpu;
+	unsigned long clockfreq, clockfactor;
+
+#define LOOP_CYCLES_68020	(8)
+#define LOOP_CYCLES_68030	(8)
+#define LOOP_CYCLES_68040	(3)
+#define LOOP_CYCLES_68060	(1)
+
+	if (CPU_IS_020) {
+		cpu = "68020";
+		clockfactor = LOOP_CYCLES_68020;
+	} else if (CPU_IS_030) {
+		cpu = "68030";
+		clockfactor = LOOP_CYCLES_68030;
+	} else if (CPU_IS_040) {
+		cpu = "68040";
+		clockfactor = LOOP_CYCLES_68040;
+	} else if (CPU_IS_060) {
+		cpu = "68060";
+		clockfactor = LOOP_CYCLES_68060;
+	} else {
+		cpu = "680x0";
+		clockfactor = 0;
+	}
+
+#ifdef CONFIG_M68KFPU_EMU_ONLY
+	fpu = "none(soft float)";
+#else
+	if (m68k_fputype & FPU_68881)
+		fpu = "68881";
+	else if (m68k_fputype & FPU_68882)
+		fpu = "68882";
+	else if (m68k_fputype & FPU_68040)
+		fpu = "68040";
+	else if (m68k_fputype & FPU_68060)
+		fpu = "68060";
+	else if (m68k_fputype & FPU_SUNFPA)
+		fpu = "Sun FPA";
+	else
+		fpu = "none";
+#endif
+
+	if (m68k_mmutype & MMU_68851)
+		mmu = "68851";
+	else if (m68k_mmutype & MMU_68030)
+		mmu = "68030";
+	else if (m68k_mmutype & MMU_68040)
+		mmu = "68040";
+	else if (m68k_mmutype & MMU_68060)
+		mmu = "68060";
+	else if (m68k_mmutype & MMU_SUN3)
+		mmu = "Sun-3";
+	else if (m68k_mmutype & MMU_APOLLO)
+		mmu = "Apollo";
+	else
+		mmu = "unknown";
+
+	clockfreq = loops_per_jiffy * HZ * clockfactor;
+
+	seq_printf(m, "CPU:\t\t%s\n"
+		   "MMU:\t\t%s\n"
+		   "FPU:\t\t%s\n"
+		   "Clocking:\t%lu.%1luMHz\n"
+		   "BogoMips:\t%lu.%02lu\n"
+		   "Calibration:\t%lu loops\n",
+		   cpu, mmu, fpu,
+		   clockfreq/1000000,(clockfreq/100000)%10,
+		   loops_per_jiffy/(500000/HZ),(loops_per_jiffy/(5000/HZ))%100,
+		   loops_per_jiffy);
+	return 0;
+}
+
+static void *c_start(struct seq_file *m, loff_t *pos)
+{
+	return *pos < 1 ? (void *)1 : NULL;
+}
+static void *c_next(struct seq_file *m, void *v, loff_t *pos)
+{
+	++*pos;
+	return NULL;
+}
+static void c_stop(struct seq_file *m, void *v)
+{
+}
+const struct seq_operations cpuinfo_op = {
+	.start	= c_start,
+	.next	= c_next,
+	.stop	= c_stop,
+	.show	= show_cpuinfo,
+};
+
+#ifdef CONFIG_PROC_HARDWARE
+static int hardware_proc_show(struct seq_file *m, void *v)
+{
+	char model[80];
+	unsigned long mem;
+	int i;
+
+	if (mach_get_model)
+		mach_get_model(model);
+	else
+		strcpy(model, "Unknown m68k");
+
+	seq_printf(m, "Model:\t\t%s\n", model);
+	for (mem = 0, i = 0; i < m68k_num_memory; i++)
+		mem += m68k_memory[i].size;
+	seq_printf(m, "System Memory:\t%ldK\n", mem >> 10);
+
+	if (mach_get_hardware_list)
+		mach_get_hardware_list(m);
+
+	return 0;
+}
+
+static int hardware_proc_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, hardware_proc_show, NULL);
+}
+
+static const struct file_operations hardware_proc_fops = {
+	.open		= hardware_proc_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
+static int __init proc_hardware_init(void)
+{
+	proc_create("hardware", 0, NULL, &hardware_proc_fops);
+	return 0;
+}
+module_init(proc_hardware_init);
+#endif
+
+void check_bugs(void)
+{
+#ifndef CONFIG_M68KFPU_EMU
+	if (m68k_fputype == 0) {
+		printk(KERN_EMERG "*** YOU DO NOT HAVE A FLOATING POINT UNIT, "
+			"WHICH IS REQUIRED BY LINUX/M68K ***\n");
+		printk(KERN_EMERG "Upgrade your hardware or join the FPU "
+			"emulation project\n");
+		panic("no FPU");
+	}
+#endif /* !CONFIG_M68KFPU_EMU */
+}
+
+#ifdef CONFIG_ADB
+static int __init adb_probe_sync_enable (char *str) {
+	extern int __adb_probe_sync;
+	__adb_probe_sync = 1;
+	return 1;
+}
+
+__setup("adb_sync", adb_probe_sync_enable);
+#endif /* CONFIG_ADB */
diff --git a/arch/m68knommu/kernel/setup.c b/arch/m68k/kernel/setup_no.c
index 16b2de7f5101..16b2de7f5101 100644
--- a/arch/m68knommu/kernel/setup.c
+++ b/arch/m68k/kernel/setup_no.c
diff --git a/arch/m68k/kernel/signal.c b/arch/m68k/kernel/signal.c
index a0afc239304e..2e25713e2ead 100644
--- a/arch/m68k/kernel/signal.c
+++ b/arch/m68k/kernel/signal.c
@@ -1,1017 +1,5 @@
-/*
- *  linux/arch/m68k/kernel/signal.c
- *
- *  Copyright (C) 1991, 1992  Linus Torvalds
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file COPYING in the main directory of this archive
- * for more details.
- */
-
-/*
- * Linux/m68k support by Hamish Macdonald
- *
- * 68060 fixes by Jesper Skov
- *
- * 1997-12-01  Modified for POSIX.1b signals by Andreas Schwab
- *
- * mathemu support by Roman Zippel
- *  (Note: fpstate in the signal context is completely ignored for the emulator
- *         and the internal floating point format is put on stack)
- */
-
-/*
- * ++roman (07/09/96): implemented signal stacks (specially for tosemu on
- * Atari :-) Current limitation: Only one sigstack can be active at one time.
- * If a second signal with SA_ONSTACK set arrives while working on a sigstack,
- * SA_ONSTACK is ignored. This behaviour avoids lots of trouble with nested
- * signal handlers!
- */
-
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/kernel.h>
-#include <linux/signal.h>
-#include <linux/syscalls.h>
-#include <linux/errno.h>
-#include <linux/wait.h>
-#include <linux/ptrace.h>
-#include <linux/unistd.h>
-#include <linux/stddef.h>
-#include <linux/highuid.h>
-#include <linux/personality.h>
-#include <linux/tty.h>
-#include <linux/binfmts.h>
-#include <linux/module.h>
-
-#include <asm/setup.h>
-#include <asm/uaccess.h>
-#include <asm/pgtable.h>
-#include <asm/traps.h>
-#include <asm/ucontext.h>
-
-#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
-
-static const int frame_extra_sizes[16] = {
-  [1]	= -1, /* sizeof(((struct frame *)0)->un.fmt1), */
-  [2]	= sizeof(((struct frame *)0)->un.fmt2),
-  [3]	= sizeof(((struct frame *)0)->un.fmt3),
-  [4]	= sizeof(((struct frame *)0)->un.fmt4),
-  [5]	= -1, /* sizeof(((struct frame *)0)->un.fmt5), */
-  [6]	= -1, /* sizeof(((struct frame *)0)->un.fmt6), */
-  [7]	= sizeof(((struct frame *)0)->un.fmt7),
-  [8]	= -1, /* sizeof(((struct frame *)0)->un.fmt8), */
-  [9]	= sizeof(((struct frame *)0)->un.fmt9),
-  [10]	= sizeof(((struct frame *)0)->un.fmta),
-  [11]	= sizeof(((struct frame *)0)->un.fmtb),
-  [12]	= -1, /* sizeof(((struct frame *)0)->un.fmtc), */
-  [13]	= -1, /* sizeof(((struct frame *)0)->un.fmtd), */
-  [14]	= -1, /* sizeof(((struct frame *)0)->un.fmte), */
-  [15]	= -1, /* sizeof(((struct frame *)0)->un.fmtf), */
-};
-
-int handle_kernel_fault(struct pt_regs *regs)
-{
-	const struct exception_table_entry *fixup;
-	struct pt_regs *tregs;
-
-	/* Are we prepared to handle this kernel fault? */
-	fixup = search_exception_tables(regs->pc);
-	if (!fixup)
-		return 0;
-
-	/* Create a new four word stack frame, discarding the old one. */
-	regs->stkadj = frame_extra_sizes[regs->format];
-	tregs =	(struct pt_regs *)((long)regs + regs->stkadj);
-	tregs->vector = regs->vector;
-	tregs->format = 0;
-	tregs->pc = fixup->fixup;
-	tregs->sr = regs->sr;
-
-	return 1;
-}
-
-/*
- * Atomically swap in the new signal mask, and wait for a signal.
- */
-asmlinkage int
-sys_sigsuspend(int unused0, int unused1, old_sigset_t mask)
-{
-	mask &= _BLOCKABLE;
-	spin_lock_irq(&current->sighand->siglock);
-	current->saved_sigmask = current->blocked;
-	siginitset(&current->blocked, mask);
-	recalc_sigpending();
-	spin_unlock_irq(&current->sighand->siglock);
-
-	current->state = TASK_INTERRUPTIBLE;
-	schedule();
-	set_restore_sigmask();
-
-	return -ERESTARTNOHAND;
-}
-
-asmlinkage int
-sys_sigaction(int sig, const struct old_sigaction __user *act,
-	      struct old_sigaction __user *oact)
-{
-	struct k_sigaction new_ka, old_ka;
-	int ret;
-
-	if (act) {
-		old_sigset_t mask;
-		if (!access_ok(VERIFY_READ, act, sizeof(*act)) ||
-		    __get_user(new_ka.sa.sa_handler, &act->sa_handler) ||
-		    __get_user(new_ka.sa.sa_restorer, &act->sa_restorer) ||
-		    __get_user(new_ka.sa.sa_flags, &act->sa_flags) ||
-		    __get_user(mask, &act->sa_mask))
-			return -EFAULT;
-		siginitset(&new_ka.sa.sa_mask, mask);
-	}
-
-	ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
-
-	if (!ret && oact) {
-		if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) ||
-		    __put_user(old_ka.sa.sa_handler, &oact->sa_handler) ||
-		    __put_user(old_ka.sa.sa_restorer, &oact->sa_restorer) ||
-		    __put_user(old_ka.sa.sa_flags, &oact->sa_flags) ||
-		    __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask))
-			return -EFAULT;
-	}
-
-	return ret;
-}
-
-asmlinkage int
-sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss)
-{
-	return do_sigaltstack(uss, uoss, rdusp());
-}
-
-
-/*
- * Do a signal return; undo the signal stack.
- *
- * Keep the return code on the stack quadword aligned!
- * That makes the cache flush below easier.
- */
-
-struct sigframe
-{
-	char __user *pretcode;
-	int sig;
-	int code;
-	struct sigcontext __user *psc;
-	char retcode[8];
-	unsigned long extramask[_NSIG_WORDS-1];
-	struct sigcontext sc;
-};
-
-struct rt_sigframe
-{
-	char __user *pretcode;
-	int sig;
-	struct siginfo __user *pinfo;
-	void __user *puc;
-	char retcode[8];
-	struct siginfo info;
-	struct ucontext uc;
-};
-
-
-static unsigned char fpu_version;	/* version number of fpu, set by setup_frame */
-
-static inline int restore_fpu_state(struct sigcontext *sc)
-{
-	int err = 1;
-
-	if (FPU_IS_EMU) {
-	    /* restore registers */
-	    memcpy(current->thread.fpcntl, sc->sc_fpcntl, 12);
-	    memcpy(current->thread.fp, sc->sc_fpregs, 24);
-	    return 0;
-	}
-
-	if (CPU_IS_060 ? sc->sc_fpstate[2] : sc->sc_fpstate[0]) {
-	    /* Verify the frame format.  */
-	    if (!CPU_IS_060 && (sc->sc_fpstate[0] != fpu_version))
-		goto out;
-	    if (CPU_IS_020_OR_030) {
-		if (m68k_fputype & FPU_68881 &&
-		    !(sc->sc_fpstate[1] == 0x18 || sc->sc_fpstate[1] == 0xb4))
-		    goto out;
-		if (m68k_fputype & FPU_68882 &&
-		    !(sc->sc_fpstate[1] == 0x38 || sc->sc_fpstate[1] == 0xd4))
-		    goto out;
-	    } else if (CPU_IS_040) {
-		if (!(sc->sc_fpstate[1] == 0x00 ||
-                      sc->sc_fpstate[1] == 0x28 ||
-                      sc->sc_fpstate[1] == 0x60))
-		    goto out;
-	    } else if (CPU_IS_060) {
-		if (!(sc->sc_fpstate[3] == 0x00 ||
-                      sc->sc_fpstate[3] == 0x60 ||
-		      sc->sc_fpstate[3] == 0xe0))
-		    goto out;
-	    } else
-		goto out;
-
-	    __asm__ volatile (".chip 68k/68881\n\t"
-			      "fmovemx %0,%%fp0-%%fp1\n\t"
-			      "fmoveml %1,%%fpcr/%%fpsr/%%fpiar\n\t"
-			      ".chip 68k"
-			      : /* no outputs */
-			      : "m" (*sc->sc_fpregs), "m" (*sc->sc_fpcntl));
-	}
-	__asm__ volatile (".chip 68k/68881\n\t"
-			  "frestore %0\n\t"
-			  ".chip 68k" : : "m" (*sc->sc_fpstate));
-	err = 0;
-
-out:
-	return err;
-}
-
-#define FPCONTEXT_SIZE	216
-#define uc_fpstate	uc_filler[0]
-#define uc_formatvec	uc_filler[FPCONTEXT_SIZE/4]
-#define uc_extra	uc_filler[FPCONTEXT_SIZE/4+1]
-
-static inline int rt_restore_fpu_state(struct ucontext __user *uc)
-{
-	unsigned char fpstate[FPCONTEXT_SIZE];
-	int context_size = CPU_IS_060 ? 8 : 0;
-	fpregset_t fpregs;
-	int err = 1;
-
-	if (FPU_IS_EMU) {
-		/* restore fpu control register */
-		if (__copy_from_user(current->thread.fpcntl,
-				uc->uc_mcontext.fpregs.f_fpcntl, 12))
-			goto out;
-		/* restore all other fpu register */
-		if (__copy_from_user(current->thread.fp,
-				uc->uc_mcontext.fpregs.f_fpregs, 96))
-			goto out;
-		return 0;
-	}
-
-	if (__get_user(*(long *)fpstate, (long __user *)&uc->uc_fpstate))
-		goto out;
-	if (CPU_IS_060 ? fpstate[2] : fpstate[0]) {
-		if (!CPU_IS_060)
-			context_size = fpstate[1];
-		/* Verify the frame format.  */
-		if (!CPU_IS_060 && (fpstate[0] != fpu_version))
-			goto out;
-		if (CPU_IS_020_OR_030) {
-			if (m68k_fputype & FPU_68881 &&
-			    !(context_size == 0x18 || context_size == 0xb4))
-				goto out;
-			if (m68k_fputype & FPU_68882 &&
-			    !(context_size == 0x38 || context_size == 0xd4))
-				goto out;
-		} else if (CPU_IS_040) {
-			if (!(context_size == 0x00 ||
-			      context_size == 0x28 ||
-			      context_size == 0x60))
-				goto out;
-		} else if (CPU_IS_060) {
-			if (!(fpstate[3] == 0x00 ||
-			      fpstate[3] == 0x60 ||
-			      fpstate[3] == 0xe0))
-				goto out;
-		} else
-			goto out;
-		if (__copy_from_user(&fpregs, &uc->uc_mcontext.fpregs,
-				     sizeof(fpregs)))
-			goto out;
-		__asm__ volatile (".chip 68k/68881\n\t"
-				  "fmovemx %0,%%fp0-%%fp7\n\t"
-				  "fmoveml %1,%%fpcr/%%fpsr/%%fpiar\n\t"
-				  ".chip 68k"
-				  : /* no outputs */
-				  : "m" (*fpregs.f_fpregs),
-				    "m" (*fpregs.f_fpcntl));
-	}
-	if (context_size &&
-	    __copy_from_user(fpstate + 4, (long __user *)&uc->uc_fpstate + 1,
-			     context_size))
-		goto out;
-	__asm__ volatile (".chip 68k/68881\n\t"
-			  "frestore %0\n\t"
-			  ".chip 68k" : : "m" (*fpstate));
-	err = 0;
-
-out:
-	return err;
-}
-
-static int mangle_kernel_stack(struct pt_regs *regs, int formatvec,
-			       void __user *fp)
-{
-	int fsize = frame_extra_sizes[formatvec >> 12];
-	if (fsize < 0) {
-		/*
-		 * user process trying to return with weird frame format
-		 */
-#ifdef DEBUG
-		printk("user process returning with weird frame format\n");
-#endif
-		return 1;
-	}
-	if (!fsize) {
-		regs->format = formatvec >> 12;
-		regs->vector = formatvec & 0xfff;
-	} else {
-		struct switch_stack *sw = (struct switch_stack *)regs - 1;
-		unsigned long buf[fsize / 2]; /* yes, twice as much */
-
-		/* that'll make sure that expansion won't crap over data */
-		if (copy_from_user(buf + fsize / 4, fp, fsize))
-			return 1;
-
-		/* point of no return */
-		regs->format = formatvec >> 12;
-		regs->vector = formatvec & 0xfff;
-#define frame_offset (sizeof(struct pt_regs)+sizeof(struct switch_stack))
-		__asm__ __volatile__
-			("   movel %0,%/a0\n\t"
-			 "   subl %1,%/a0\n\t"     /* make room on stack */
-			 "   movel %/a0,%/sp\n\t"  /* set stack pointer */
-			 /* move switch_stack and pt_regs */
-			 "1: movel %0@+,%/a0@+\n\t"
-			 "   dbra %2,1b\n\t"
-			 "   lea %/sp@(%c3),%/a0\n\t" /* add offset of fmt */
-			 "   lsrl  #2,%1\n\t"
-			 "   subql #1,%1\n\t"
-			 /* copy to the gap we'd made */
-			 "2: movel %4@+,%/a0@+\n\t"
-			 "   dbra %1,2b\n\t"
-			 "   bral ret_from_signal\n"
-			 : /* no outputs, it doesn't ever return */
-			 : "a" (sw), "d" (fsize), "d" (frame_offset/4-1),
-			   "n" (frame_offset), "a" (buf + fsize/4)
-			 : "a0");
-#undef frame_offset
-	}
-	return 0;
-}
-
-static inline int
-restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *usc, void __user *fp)
-{
-	int formatvec;
-	struct sigcontext context;
-	int err;
-
-	/* Always make any pending restarted system calls return -EINTR */
-	current_thread_info()->restart_block.fn = do_no_restart_syscall;
-
-	/* get previous context */
-	if (copy_from_user(&context, usc, sizeof(context)))
-		goto badframe;
-
-	/* restore passed registers */
-	regs->d0 = context.sc_d0;
-	regs->d1 = context.sc_d1;
-	regs->a0 = context.sc_a0;
-	regs->a1 = context.sc_a1;
-	regs->sr = (regs->sr & 0xff00) | (context.sc_sr & 0xff);
-	regs->pc = context.sc_pc;
-	regs->orig_d0 = -1;		/* disable syscall checks */
-	wrusp(context.sc_usp);
-	formatvec = context.sc_formatvec;
-
-	err = restore_fpu_state(&context);
-
-	if (err || mangle_kernel_stack(regs, formatvec, fp))
-		goto badframe;
-
-	return 0;
-
-badframe:
-	return 1;
-}
-
-static inline int
-rt_restore_ucontext(struct pt_regs *regs, struct switch_stack *sw,
-		    struct ucontext __user *uc)
-{
-	int temp;
-	greg_t __user *gregs = uc->uc_mcontext.gregs;
-	unsigned long usp;
-	int err;
-
-	/* Always make any pending restarted system calls return -EINTR */
-	current_thread_info()->restart_block.fn = do_no_restart_syscall;
-
-	err = __get_user(temp, &uc->uc_mcontext.version);
-	if (temp != MCONTEXT_VERSION)
-		goto badframe;
-	/* restore passed registers */
-	err |= __get_user(regs->d0, &gregs[0]);
-	err |= __get_user(regs->d1, &gregs[1]);
-	err |= __get_user(regs->d2, &gregs[2]);
-	err |= __get_user(regs->d3, &gregs[3]);
-	err |= __get_user(regs->d4, &gregs[4]);
-	err |= __get_user(regs->d5, &gregs[5]);
-	err |= __get_user(sw->d6, &gregs[6]);
-	err |= __get_user(sw->d7, &gregs[7]);
-	err |= __get_user(regs->a0, &gregs[8]);
-	err |= __get_user(regs->a1, &gregs[9]);
-	err |= __get_user(regs->a2, &gregs[10]);
-	err |= __get_user(sw->a3, &gregs[11]);
-	err |= __get_user(sw->a4, &gregs[12]);
-	err |= __get_user(sw->a5, &gregs[13]);
-	err |= __get_user(sw->a6, &gregs[14]);
-	err |= __get_user(usp, &gregs[15]);
-	wrusp(usp);
-	err |= __get_user(regs->pc, &gregs[16]);
-	err |= __get_user(temp, &gregs[17]);
-	regs->sr = (regs->sr & 0xff00) | (temp & 0xff);
-	regs->orig_d0 = -1;		/* disable syscall checks */
-	err |= __get_user(temp, &uc->uc_formatvec);
-
-	err |= rt_restore_fpu_state(uc);
-
-	if (err || do_sigaltstack(&uc->uc_stack, NULL, usp) == -EFAULT)
-		goto badframe;
-
-	if (mangle_kernel_stack(regs, temp, &uc->uc_extra))
-		goto badframe;
-
-	return 0;
-
-badframe:
-	return 1;
-}
-
-asmlinkage int do_sigreturn(unsigned long __unused)
-{
-	struct switch_stack *sw = (struct switch_stack *) &__unused;
-	struct pt_regs *regs = (struct pt_regs *) (sw + 1);
-	unsigned long usp = rdusp();
-	struct sigframe __user *frame = (struct sigframe __user *)(usp - 4);
-	sigset_t set;
-
-	if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
-		goto badframe;
-	if (__get_user(set.sig[0], &frame->sc.sc_mask) ||
-	    (_NSIG_WORDS > 1 &&
-	     __copy_from_user(&set.sig[1], &frame->extramask,
-			      sizeof(frame->extramask))))
-		goto badframe;
-
-	sigdelsetmask(&set, ~_BLOCKABLE);
-	current->blocked = set;
-	recalc_sigpending();
-
-	if (restore_sigcontext(regs, &frame->sc, frame + 1))
-		goto badframe;
-	return regs->d0;
-
-badframe:
-	force_sig(SIGSEGV, current);
-	return 0;
-}
-
-asmlinkage int do_rt_sigreturn(unsigned long __unused)
-{
-	struct switch_stack *sw = (struct switch_stack *) &__unused;
-	struct pt_regs *regs = (struct pt_regs *) (sw + 1);
-	unsigned long usp = rdusp();
-	struct rt_sigframe __user *frame = (struct rt_sigframe __user *)(usp - 4);
-	sigset_t set;
-
-	if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
-		goto badframe;
-	if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
-		goto badframe;
-
-	sigdelsetmask(&set, ~_BLOCKABLE);
-	current->blocked = set;
-	recalc_sigpending();
-
-	if (rt_restore_ucontext(regs, sw, &frame->uc))
-		goto badframe;
-	return regs->d0;
-
-badframe:
-	force_sig(SIGSEGV, current);
-	return 0;
-}
-
-/*
- * Set up a signal frame.
- */
-
-static inline void save_fpu_state(struct sigcontext *sc, struct pt_regs *regs)
-{
-	if (FPU_IS_EMU) {
-		/* save registers */
-		memcpy(sc->sc_fpcntl, current->thread.fpcntl, 12);
-		memcpy(sc->sc_fpregs, current->thread.fp, 24);
-		return;
-	}
-
-	__asm__ volatile (".chip 68k/68881\n\t"
-			  "fsave %0\n\t"
-			  ".chip 68k"
-			  : : "m" (*sc->sc_fpstate) : "memory");
-
-	if (CPU_IS_060 ? sc->sc_fpstate[2] : sc->sc_fpstate[0]) {
-		fpu_version = sc->sc_fpstate[0];
-		if (CPU_IS_020_OR_030 &&
-		    regs->vector >= (VEC_FPBRUC * 4) &&
-		    regs->vector <= (VEC_FPNAN * 4)) {
-			/* Clear pending exception in 68882 idle frame */
-			if (*(unsigned short *) sc->sc_fpstate == 0x1f38)
-				sc->sc_fpstate[0x38] |= 1 << 3;
-		}
-		__asm__ volatile (".chip 68k/68881\n\t"
-				  "fmovemx %%fp0-%%fp1,%0\n\t"
-				  "fmoveml %%fpcr/%%fpsr/%%fpiar,%1\n\t"
-				  ".chip 68k"
-				  : "=m" (*sc->sc_fpregs),
-				    "=m" (*sc->sc_fpcntl)
-				  : /* no inputs */
-				  : "memory");
-	}
-}
-
-static inline int rt_save_fpu_state(struct ucontext __user *uc, struct pt_regs *regs)
-{
-	unsigned char fpstate[FPCONTEXT_SIZE];
-	int context_size = CPU_IS_060 ? 8 : 0;
-	int err = 0;
-
-	if (FPU_IS_EMU) {
-		/* save fpu control register */
-		err |= copy_to_user(uc->uc_mcontext.fpregs.f_fpcntl,
-				current->thread.fpcntl, 12);
-		/* save all other fpu register */
-		err |= copy_to_user(uc->uc_mcontext.fpregs.f_fpregs,
-				current->thread.fp, 96);
-		return err;
-	}
-
-	__asm__ volatile (".chip 68k/68881\n\t"
-			  "fsave %0\n\t"
-			  ".chip 68k"
-			  : : "m" (*fpstate) : "memory");
-
-	err |= __put_user(*(long *)fpstate, (long __user *)&uc->uc_fpstate);
-	if (CPU_IS_060 ? fpstate[2] : fpstate[0]) {
-		fpregset_t fpregs;
-		if (!CPU_IS_060)
-			context_size = fpstate[1];
-		fpu_version = fpstate[0];
-		if (CPU_IS_020_OR_030 &&
-		    regs->vector >= (VEC_FPBRUC * 4) &&
-		    regs->vector <= (VEC_FPNAN * 4)) {
-			/* Clear pending exception in 68882 idle frame */
-			if (*(unsigned short *) fpstate == 0x1f38)
-				fpstate[0x38] |= 1 << 3;
-		}
-		__asm__ volatile (".chip 68k/68881\n\t"
-				  "fmovemx %%fp0-%%fp7,%0\n\t"
-				  "fmoveml %%fpcr/%%fpsr/%%fpiar,%1\n\t"
-				  ".chip 68k"
-				  : "=m" (*fpregs.f_fpregs),
-				    "=m" (*fpregs.f_fpcntl)
-				  : /* no inputs */
-				  : "memory");
-		err |= copy_to_user(&uc->uc_mcontext.fpregs, &fpregs,
-				    sizeof(fpregs));
-	}
-	if (context_size)
-		err |= copy_to_user((long __user *)&uc->uc_fpstate + 1, fpstate + 4,
-				    context_size);
-	return err;
-}
-
-static void setup_sigcontext(struct sigcontext *sc, struct pt_regs *regs,
-			     unsigned long mask)
-{
-	sc->sc_mask = mask;
-	sc->sc_usp = rdusp();
-	sc->sc_d0 = regs->d0;
-	sc->sc_d1 = regs->d1;
-	sc->sc_a0 = regs->a0;
-	sc->sc_a1 = regs->a1;
-	sc->sc_sr = regs->sr;
-	sc->sc_pc = regs->pc;
-	sc->sc_formatvec = regs->format << 12 | regs->vector;
-	save_fpu_state(sc, regs);
-}
-
-static inline int rt_setup_ucontext(struct ucontext __user *uc, struct pt_regs *regs)
-{
-	struct switch_stack *sw = (struct switch_stack *)regs - 1;
-	greg_t __user *gregs = uc->uc_mcontext.gregs;
-	int err = 0;
-
-	err |= __put_user(MCONTEXT_VERSION, &uc->uc_mcontext.version);
-	err |= __put_user(regs->d0, &gregs[0]);
-	err |= __put_user(regs->d1, &gregs[1]);
-	err |= __put_user(regs->d2, &gregs[2]);
-	err |= __put_user(regs->d3, &gregs[3]);
-	err |= __put_user(regs->d4, &gregs[4]);
-	err |= __put_user(regs->d5, &gregs[5]);
-	err |= __put_user(sw->d6, &gregs[6]);
-	err |= __put_user(sw->d7, &gregs[7]);
-	err |= __put_user(regs->a0, &gregs[8]);
-	err |= __put_user(regs->a1, &gregs[9]);
-	err |= __put_user(regs->a2, &gregs[10]);
-	err |= __put_user(sw->a3, &gregs[11]);
-	err |= __put_user(sw->a4, &gregs[12]);
-	err |= __put_user(sw->a5, &gregs[13]);
-	err |= __put_user(sw->a6, &gregs[14]);
-	err |= __put_user(rdusp(), &gregs[15]);
-	err |= __put_user(regs->pc, &gregs[16]);
-	err |= __put_user(regs->sr, &gregs[17]);
-	err |= __put_user((regs->format << 12) | regs->vector, &uc->uc_formatvec);
-	err |= rt_save_fpu_state(uc, regs);
-	return err;
-}
-
-static inline void push_cache (unsigned long vaddr)
-{
-	/*
-	 * Using the old cache_push_v() was really a big waste.
-	 *
-	 * What we are trying to do is to flush 8 bytes to ram.
-	 * Flushing 2 cache lines of 16 bytes is much cheaper than
-	 * flushing 1 or 2 pages, as previously done in
-	 * cache_push_v().
-	 *                                                     Jes
-	 */
-	if (CPU_IS_040) {
-		unsigned long temp;
-
-		__asm__ __volatile__ (".chip 68040\n\t"
-				      "nop\n\t"
-				      "ptestr (%1)\n\t"
-				      "movec %%mmusr,%0\n\t"
-				      ".chip 68k"
-				      : "=r" (temp)
-				      : "a" (vaddr));
-
-		temp &= PAGE_MASK;
-		temp |= vaddr & ~PAGE_MASK;
-
-		__asm__ __volatile__ (".chip 68040\n\t"
-				      "nop\n\t"
-				      "cpushl %%bc,(%0)\n\t"
-				      ".chip 68k"
-				      : : "a" (temp));
-	}
-	else if (CPU_IS_060) {
-		unsigned long temp;
-		__asm__ __volatile__ (".chip 68060\n\t"
-				      "plpar (%0)\n\t"
-				      ".chip 68k"
-				      : "=a" (temp)
-				      : "0" (vaddr));
-		__asm__ __volatile__ (".chip 68060\n\t"
-				      "cpushl %%bc,(%0)\n\t"
-				      ".chip 68k"
-				      : : "a" (temp));
-	}
-	else {
-		/*
-		 * 68030/68020 have no writeback cache;
-		 * still need to clear icache.
-		 * Note that vaddr is guaranteed to be long word aligned.
-		 */
-		unsigned long temp;
-		asm volatile ("movec %%cacr,%0" : "=r" (temp));
-		temp += 4;
-		asm volatile ("movec %0,%%caar\n\t"
-			      "movec %1,%%cacr"
-			      : : "r" (vaddr), "r" (temp));
-		asm volatile ("movec %0,%%caar\n\t"
-			      "movec %1,%%cacr"
-			      : : "r" (vaddr + 4), "r" (temp));
-	}
-}
-
-static inline void __user *
-get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, size_t frame_size)
-{
-	unsigned long usp;
-
-	/* Default to using normal stack.  */
-	usp = rdusp();
-
-	/* This is the X/Open sanctioned signal stack switching.  */
-	if (ka->sa.sa_flags & SA_ONSTACK) {
-		if (!sas_ss_flags(usp))
-			usp = current->sas_ss_sp + current->sas_ss_size;
-	}
-	return (void __user *)((usp - frame_size) & -8UL);
-}
-
-static int setup_frame (int sig, struct k_sigaction *ka,
-			 sigset_t *set, struct pt_regs *regs)
-{
-	struct sigframe __user *frame;
-	int fsize = frame_extra_sizes[regs->format];
-	struct sigcontext context;
-	int err = 0;
-
-	if (fsize < 0) {
-#ifdef DEBUG
-		printk ("setup_frame: Unknown frame format %#x\n",
-			regs->format);
-#endif
-		goto give_sigsegv;
-	}
-
-	frame = get_sigframe(ka, regs, sizeof(*frame) + fsize);
-
-	if (fsize)
-		err |= copy_to_user (frame + 1, regs + 1, fsize);
-
-	err |= __put_user((current_thread_info()->exec_domain
-			   && current_thread_info()->exec_domain->signal_invmap
-			   && sig < 32
-			   ? current_thread_info()->exec_domain->signal_invmap[sig]
-			   : sig),
-			  &frame->sig);
-
-	err |= __put_user(regs->vector, &frame->code);
-	err |= __put_user(&frame->sc, &frame->psc);
-
-	if (_NSIG_WORDS > 1)
-		err |= copy_to_user(frame->extramask, &set->sig[1],
-				    sizeof(frame->extramask));
-
-	setup_sigcontext(&context, regs, set->sig[0]);
-	err |= copy_to_user (&frame->sc, &context, sizeof(context));
-
-	/* Set up to return from userspace.  */
-	err |= __put_user(frame->retcode, &frame->pretcode);
-	/* moveq #,d0; trap #0 */
-	err |= __put_user(0x70004e40 + (__NR_sigreturn << 16),
-			  (long __user *)(frame->retcode));
-
-	if (err)
-		goto give_sigsegv;
-
-	push_cache ((unsigned long) &frame->retcode);
-
-	/*
-	 * Set up registers for signal handler.  All the state we are about
-	 * to destroy is successfully copied to sigframe.
-	 */
-	wrusp ((unsigned long) frame);
-	regs->pc = (unsigned long) ka->sa.sa_handler;
-
-	/*
-	 * This is subtle; if we build more than one sigframe, all but the
-	 * first one will see frame format 0 and have fsize == 0, so we won't
-	 * screw stkadj.
-	 */
-	if (fsize)
-		regs->stkadj = fsize;
-
-	/* Prepare to skip over the extra stuff in the exception frame.  */
-	if (regs->stkadj) {
-		struct pt_regs *tregs =
-			(struct pt_regs *)((ulong)regs + regs->stkadj);
-#ifdef DEBUG
-		printk("Performing stackadjust=%04x\n", regs->stkadj);
-#endif
-		/* This must be copied with decreasing addresses to
-                   handle overlaps.  */
-		tregs->vector = 0;
-		tregs->format = 0;
-		tregs->pc = regs->pc;
-		tregs->sr = regs->sr;
-	}
-	return 0;
-
-give_sigsegv:
-	force_sigsegv(sig, current);
-	return err;
-}
-
-static int setup_rt_frame (int sig, struct k_sigaction *ka, siginfo_t *info,
-			    sigset_t *set, struct pt_regs *regs)
-{
-	struct rt_sigframe __user *frame;
-	int fsize = frame_extra_sizes[regs->format];
-	int err = 0;
-
-	if (fsize < 0) {
-#ifdef DEBUG
-		printk ("setup_frame: Unknown frame format %#x\n",
-			regs->format);
-#endif
-		goto give_sigsegv;
-	}
-
-	frame = get_sigframe(ka, regs, sizeof(*frame));
-
-	if (fsize)
-		err |= copy_to_user (&frame->uc.uc_extra, regs + 1, fsize);
-
-	err |= __put_user((current_thread_info()->exec_domain
-			   && current_thread_info()->exec_domain->signal_invmap
-			   && sig < 32
-			   ? current_thread_info()->exec_domain->signal_invmap[sig]
-			   : sig),
-			  &frame->sig);
-	err |= __put_user(&frame->info, &frame->pinfo);
-	err |= __put_user(&frame->uc, &frame->puc);
-	err |= copy_siginfo_to_user(&frame->info, info);
-
-	/* Create the ucontext.  */
-	err |= __put_user(0, &frame->uc.uc_flags);
-	err |= __put_user(NULL, &frame->uc.uc_link);
-	err |= __put_user((void __user *)current->sas_ss_sp,
-			  &frame->uc.uc_stack.ss_sp);
-	err |= __put_user(sas_ss_flags(rdusp()),
-			  &frame->uc.uc_stack.ss_flags);
-	err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size);
-	err |= rt_setup_ucontext(&frame->uc, regs);
-	err |= copy_to_user (&frame->uc.uc_sigmask, set, sizeof(*set));
-
-	/* Set up to return from userspace.  */
-	err |= __put_user(frame->retcode, &frame->pretcode);
-#ifdef __mcoldfire__
-	/* movel #__NR_rt_sigreturn,d0; trap #0 */
-	err |= __put_user(0x203c0000, (long __user *)(frame->retcode + 0));
-	err |= __put_user(0x00004e40 + (__NR_rt_sigreturn << 16),
-			  (long __user *)(frame->retcode + 4));
+#ifdef CONFIG_MMU
+#include "signal_mm.c"
 #else
-	/* moveq #,d0; notb d0; trap #0 */
-	err |= __put_user(0x70004600 + ((__NR_rt_sigreturn ^ 0xff) << 16),
-			  (long __user *)(frame->retcode + 0));
-	err |= __put_user(0x4e40, (short __user *)(frame->retcode + 4));
-#endif
-
-	if (err)
-		goto give_sigsegv;
-
-	push_cache ((unsigned long) &frame->retcode);
-
-	/*
-	 * Set up registers for signal handler.  All the state we are about
-	 * to destroy is successfully copied to sigframe.
-	 */
-	wrusp ((unsigned long) frame);
-	regs->pc = (unsigned long) ka->sa.sa_handler;
-
-	/*
-	 * This is subtle; if we build more than one sigframe, all but the
-	 * first one will see frame format 0 and have fsize == 0, so we won't
-	 * screw stkadj.
-	 */
-	if (fsize)
-		regs->stkadj = fsize;
-
-	/* Prepare to skip over the extra stuff in the exception frame.  */
-	if (regs->stkadj) {
-		struct pt_regs *tregs =
-			(struct pt_regs *)((ulong)regs + regs->stkadj);
-#ifdef DEBUG
-		printk("Performing stackadjust=%04x\n", regs->stkadj);
+#include "signal_no.c"
 #endif
-		/* This must be copied with decreasing addresses to
-                   handle overlaps.  */
-		tregs->vector = 0;
-		tregs->format = 0;
-		tregs->pc = regs->pc;
-		tregs->sr = regs->sr;
-	}
-	return 0;
-
-give_sigsegv:
-	force_sigsegv(sig, current);
-	return err;
-}
-
-static inline void
-handle_restart(struct pt_regs *regs, struct k_sigaction *ka, int has_handler)
-{
-	switch (regs->d0) {
-	case -ERESTARTNOHAND:
-		if (!has_handler)
-			goto do_restart;
-		regs->d0 = -EINTR;
-		break;
-
-	case -ERESTART_RESTARTBLOCK:
-		if (!has_handler) {
-			regs->d0 = __NR_restart_syscall;
-			regs->pc -= 2;
-			break;
-		}
-		regs->d0 = -EINTR;
-		break;
-
-	case -ERESTARTSYS:
-		if (has_handler && !(ka->sa.sa_flags & SA_RESTART)) {
-			regs->d0 = -EINTR;
-			break;
-		}
-	/* fallthrough */
-	case -ERESTARTNOINTR:
-	do_restart:
-		regs->d0 = regs->orig_d0;
-		regs->pc -= 2;
-		break;
-	}
-}
-
-void ptrace_signal_deliver(struct pt_regs *regs, void *cookie)
-{
-	if (regs->orig_d0 < 0)
-		return;
-	switch (regs->d0) {
-	case -ERESTARTNOHAND:
-	case -ERESTARTSYS:
-	case -ERESTARTNOINTR:
-		regs->d0 = regs->orig_d0;
-		regs->orig_d0 = -1;
-		regs->pc -= 2;
-		break;
-	}
-}
-
-/*
- * OK, we're invoking a handler
- */
-static void
-handle_signal(int sig, struct k_sigaction *ka, siginfo_t *info,
-	      sigset_t *oldset, struct pt_regs *regs)
-{
-	int err;
-	/* are we from a system call? */
-	if (regs->orig_d0 >= 0)
-		/* If so, check system call restarting.. */
-		handle_restart(regs, ka, 1);
-
-	/* set up the stack frame */
-	if (ka->sa.sa_flags & SA_SIGINFO)
-		err = setup_rt_frame(sig, ka, info, oldset, regs);
-	else
-		err = setup_frame(sig, ka, oldset, regs);
-
-	if (err)
-		return;
-
-	sigorsets(&current->blocked,&current->blocked,&ka->sa.sa_mask);
-	if (!(ka->sa.sa_flags & SA_NODEFER))
-		sigaddset(&current->blocked,sig);
-	recalc_sigpending();
-
-	if (test_thread_flag(TIF_DELAYED_TRACE)) {
-		regs->sr &= ~0x8000;
-		send_sig(SIGTRAP, current, 1);
-	}
-
-	clear_thread_flag(TIF_RESTORE_SIGMASK);
-}
-
-/*
- * Note that 'init' is a special process: it doesn't get signals it doesn't
- * want to handle. Thus you cannot kill init even with a SIGKILL even by
- * mistake.
- */
-asmlinkage void do_signal(struct pt_regs *regs)
-{
-	siginfo_t info;
-	struct k_sigaction ka;
-	int signr;
-	sigset_t *oldset;
-
-	current->thread.esp0 = (unsigned long) regs;
-
-	if (test_thread_flag(TIF_RESTORE_SIGMASK))
-		oldset = &current->saved_sigmask;
-	else
-		oldset = &current->blocked;
-
-	signr = get_signal_to_deliver(&info, &ka, regs, NULL);
-	if (signr > 0) {
-		/* Whee!  Actually deliver the signal.  */
-		handle_signal(signr, &ka, &info, oldset, regs);
-		return;
-	}
-
-	/* Did we come from a system call? */
-	if (regs->orig_d0 >= 0)
-		/* Restart the system call - no handlers present */
-		handle_restart(regs, NULL, 0);
-
-	/* If there's no signal to deliver, we just restore the saved mask.  */
-	if (test_thread_flag(TIF_RESTORE_SIGMASK)) {
-		clear_thread_flag(TIF_RESTORE_SIGMASK);
-		sigprocmask(SIG_SETMASK, &current->saved_sigmask, NULL);
-	}
-}
diff --git a/arch/m68k/kernel/signal_mm.c b/arch/m68k/kernel/signal_mm.c
new file mode 100644
index 000000000000..a0afc239304e
--- /dev/null
+++ b/arch/m68k/kernel/signal_mm.c
@@ -0,0 +1,1017 @@
+/*
+ *  linux/arch/m68k/kernel/signal.c
+ *
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file COPYING in the main directory of this archive
+ * for more details.
+ */
+
+/*
+ * Linux/m68k support by Hamish Macdonald
+ *
+ * 68060 fixes by Jesper Skov
+ *
+ * 1997-12-01  Modified for POSIX.1b signals by Andreas Schwab
+ *
+ * mathemu support by Roman Zippel
+ *  (Note: fpstate in the signal context is completely ignored for the emulator
+ *         and the internal floating point format is put on stack)
+ */
+
+/*
+ * ++roman (07/09/96): implemented signal stacks (specially for tosemu on
+ * Atari :-) Current limitation: Only one sigstack can be active at one time.
+ * If a second signal with SA_ONSTACK set arrives while working on a sigstack,
+ * SA_ONSTACK is ignored. This behaviour avoids lots of trouble with nested
+ * signal handlers!
+ */
+
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/kernel.h>
+#include <linux/signal.h>
+#include <linux/syscalls.h>
+#include <linux/errno.h>
+#include <linux/wait.h>
+#include <linux/ptrace.h>
+#include <linux/unistd.h>
+#include <linux/stddef.h>
+#include <linux/highuid.h>
+#include <linux/personality.h>
+#include <linux/tty.h>
+#include <linux/binfmts.h>
+#include <linux/module.h>
+
+#include <asm/setup.h>
+#include <asm/uaccess.h>
+#include <asm/pgtable.h>
+#include <asm/traps.h>
+#include <asm/ucontext.h>
+
+#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
+
+static const int frame_extra_sizes[16] = {
+  [1]	= -1, /* sizeof(((struct frame *)0)->un.fmt1), */
+  [2]	= sizeof(((struct frame *)0)->un.fmt2),
+  [3]	= sizeof(((struct frame *)0)->un.fmt3),
+  [4]	= sizeof(((struct frame *)0)->un.fmt4),
+  [5]	= -1, /* sizeof(((struct frame *)0)->un.fmt5), */
+  [6]	= -1, /* sizeof(((struct frame *)0)->un.fmt6), */
+  [7]	= sizeof(((struct frame *)0)->un.fmt7),
+  [8]	= -1, /* sizeof(((struct frame *)0)->un.fmt8), */
+  [9]	= sizeof(((struct frame *)0)->un.fmt9),
+  [10]	= sizeof(((struct frame *)0)->un.fmta),
+  [11]	= sizeof(((struct frame *)0)->un.fmtb),
+  [12]	= -1, /* sizeof(((struct frame *)0)->un.fmtc), */
+  [13]	= -1, /* sizeof(((struct frame *)0)->un.fmtd), */
+  [14]	= -1, /* sizeof(((struct frame *)0)->un.fmte), */
+  [15]	= -1, /* sizeof(((struct frame *)0)->un.fmtf), */
+};
+
+int handle_kernel_fault(struct pt_regs *regs)
+{
+	const struct exception_table_entry *fixup;
+	struct pt_regs *tregs;
+
+	/* Are we prepared to handle this kernel fault? */
+	fixup = search_exception_tables(regs->pc);
+	if (!fixup)
+		return 0;
+
+	/* Create a new four word stack frame, discarding the old one. */
+	regs->stkadj = frame_extra_sizes[regs->format];
+	tregs =	(struct pt_regs *)((long)regs + regs->stkadj);
+	tregs->vector = regs->vector;
+	tregs->format = 0;
+	tregs->pc = fixup->fixup;
+	tregs->sr = regs->sr;
+
+	return 1;
+}
+
+/*
+ * Atomically swap in the new signal mask, and wait for a signal.
+ */
+asmlinkage int
+sys_sigsuspend(int unused0, int unused1, old_sigset_t mask)
+{
+	mask &= _BLOCKABLE;
+	spin_lock_irq(&current->sighand->siglock);
+	current->saved_sigmask = current->blocked;
+	siginitset(&current->blocked, mask);
+	recalc_sigpending();
+	spin_unlock_irq(&current->sighand->siglock);
+
+	current->state = TASK_INTERRUPTIBLE;
+	schedule();
+	set_restore_sigmask();
+
+	return -ERESTARTNOHAND;
+}
+
+asmlinkage int
+sys_sigaction(int sig, const struct old_sigaction __user *act,
+	      struct old_sigaction __user *oact)
+{
+	struct k_sigaction new_ka, old_ka;
+	int ret;
+
+	if (act) {
+		old_sigset_t mask;
+		if (!access_ok(VERIFY_READ, act, sizeof(*act)) ||
+		    __get_user(new_ka.sa.sa_handler, &act->sa_handler) ||
+		    __get_user(new_ka.sa.sa_restorer, &act->sa_restorer) ||
+		    __get_user(new_ka.sa.sa_flags, &act->sa_flags) ||
+		    __get_user(mask, &act->sa_mask))
+			return -EFAULT;
+		siginitset(&new_ka.sa.sa_mask, mask);
+	}
+
+	ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
+
+	if (!ret && oact) {
+		if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) ||
+		    __put_user(old_ka.sa.sa_handler, &oact->sa_handler) ||
+		    __put_user(old_ka.sa.sa_restorer, &oact->sa_restorer) ||
+		    __put_user(old_ka.sa.sa_flags, &oact->sa_flags) ||
+		    __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask))
+			return -EFAULT;
+	}
+
+	return ret;
+}
+
+asmlinkage int
+sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss)
+{
+	return do_sigaltstack(uss, uoss, rdusp());
+}
+
+
+/*
+ * Do a signal return; undo the signal stack.
+ *
+ * Keep the return code on the stack quadword aligned!
+ * That makes the cache flush below easier.
+ */
+
+struct sigframe
+{
+	char __user *pretcode;
+	int sig;
+	int code;
+	struct sigcontext __user *psc;
+	char retcode[8];
+	unsigned long extramask[_NSIG_WORDS-1];
+	struct sigcontext sc;
+};
+
+struct rt_sigframe
+{
+	char __user *pretcode;
+	int sig;
+	struct siginfo __user *pinfo;
+	void __user *puc;
+	char retcode[8];
+	struct siginfo info;
+	struct ucontext uc;
+};
+
+
+static unsigned char fpu_version;	/* version number of fpu, set by setup_frame */
+
+static inline int restore_fpu_state(struct sigcontext *sc)
+{
+	int err = 1;
+
+	if (FPU_IS_EMU) {
+	    /* restore registers */
+	    memcpy(current->thread.fpcntl, sc->sc_fpcntl, 12);
+	    memcpy(current->thread.fp, sc->sc_fpregs, 24);
+	    return 0;
+	}
+
+	if (CPU_IS_060 ? sc->sc_fpstate[2] : sc->sc_fpstate[0]) {
+	    /* Verify the frame format.  */
+	    if (!CPU_IS_060 && (sc->sc_fpstate[0] != fpu_version))
+		goto out;
+	    if (CPU_IS_020_OR_030) {
+		if (m68k_fputype & FPU_68881 &&
+		    !(sc->sc_fpstate[1] == 0x18 || sc->sc_fpstate[1] == 0xb4))
+		    goto out;
+		if (m68k_fputype & FPU_68882 &&
+		    !(sc->sc_fpstate[1] == 0x38 || sc->sc_fpstate[1] == 0xd4))
+		    goto out;
+	    } else if (CPU_IS_040) {
+		if (!(sc->sc_fpstate[1] == 0x00 ||
+                      sc->sc_fpstate[1] == 0x28 ||
+                      sc->sc_fpstate[1] == 0x60))
+		    goto out;
+	    } else if (CPU_IS_060) {
+		if (!(sc->sc_fpstate[3] == 0x00 ||
+                      sc->sc_fpstate[3] == 0x60 ||
+		      sc->sc_fpstate[3] == 0xe0))
+		    goto out;
+	    } else
+		goto out;
+
+	    __asm__ volatile (".chip 68k/68881\n\t"
+			      "fmovemx %0,%%fp0-%%fp1\n\t"
+			      "fmoveml %1,%%fpcr/%%fpsr/%%fpiar\n\t"
+			      ".chip 68k"
+			      : /* no outputs */
+			      : "m" (*sc->sc_fpregs), "m" (*sc->sc_fpcntl));
+	}
+	__asm__ volatile (".chip 68k/68881\n\t"
+			  "frestore %0\n\t"
+			  ".chip 68k" : : "m" (*sc->sc_fpstate));
+	err = 0;
+
+out:
+	return err;
+}
+
+#define FPCONTEXT_SIZE	216
+#define uc_fpstate	uc_filler[0]
+#define uc_formatvec	uc_filler[FPCONTEXT_SIZE/4]
+#define uc_extra	uc_filler[FPCONTEXT_SIZE/4+1]
+
+static inline int rt_restore_fpu_state(struct ucontext __user *uc)
+{
+	unsigned char fpstate[FPCONTEXT_SIZE];
+	int context_size = CPU_IS_060 ? 8 : 0;
+	fpregset_t fpregs;
+	int err = 1;
+
+	if (FPU_IS_EMU) {
+		/* restore fpu control register */
+		if (__copy_from_user(current->thread.fpcntl,
+				uc->uc_mcontext.fpregs.f_fpcntl, 12))
+			goto out;
+		/* restore all other fpu register */
+		if (__copy_from_user(current->thread.fp,
+				uc->uc_mcontext.fpregs.f_fpregs, 96))
+			goto out;
+		return 0;
+	}
+
+	if (__get_user(*(long *)fpstate, (long __user *)&uc->uc_fpstate))
+		goto out;
+	if (CPU_IS_060 ? fpstate[2] : fpstate[0]) {
+		if (!CPU_IS_060)
+			context_size = fpstate[1];
+		/* Verify the frame format.  */
+		if (!CPU_IS_060 && (fpstate[0] != fpu_version))
+			goto out;
+		if (CPU_IS_020_OR_030) {
+			if (m68k_fputype & FPU_68881 &&
+			    !(context_size == 0x18 || context_size == 0xb4))
+				goto out;
+			if (m68k_fputype & FPU_68882 &&
+			    !(context_size == 0x38 || context_size == 0xd4))
+				goto out;
+		} else if (CPU_IS_040) {
+			if (!(context_size == 0x00 ||
+			      context_size == 0x28 ||
+			      context_size == 0x60))
+				goto out;
+		} else if (CPU_IS_060) {
+			if (!(fpstate[3] == 0x00 ||
+			      fpstate[3] == 0x60 ||
+			      fpstate[3] == 0xe0))
+				goto out;
+		} else
+			goto out;
+		if (__copy_from_user(&fpregs, &uc->uc_mcontext.fpregs,
+				     sizeof(fpregs)))
+			goto out;
+		__asm__ volatile (".chip 68k/68881\n\t"
+				  "fmovemx %0,%%fp0-%%fp7\n\t"
+				  "fmoveml %1,%%fpcr/%%fpsr/%%fpiar\n\t"
+				  ".chip 68k"
+				  : /* no outputs */
+				  : "m" (*fpregs.f_fpregs),
+				    "m" (*fpregs.f_fpcntl));
+	}
+	if (context_size &&
+	    __copy_from_user(fpstate + 4, (long __user *)&uc->uc_fpstate + 1,
+			     context_size))
+		goto out;
+	__asm__ volatile (".chip 68k/68881\n\t"
+			  "frestore %0\n\t"
+			  ".chip 68k" : : "m" (*fpstate));
+	err = 0;
+
+out:
+	return err;
+}
+
+static int mangle_kernel_stack(struct pt_regs *regs, int formatvec,
+			       void __user *fp)
+{
+	int fsize = frame_extra_sizes[formatvec >> 12];
+	if (fsize < 0) {
+		/*
+		 * user process trying to return with weird frame format
+		 */
+#ifdef DEBUG
+		printk("user process returning with weird frame format\n");
+#endif
+		return 1;
+	}
+	if (!fsize) {
+		regs->format = formatvec >> 12;
+		regs->vector = formatvec & 0xfff;
+	} else {
+		struct switch_stack *sw = (struct switch_stack *)regs - 1;
+		unsigned long buf[fsize / 2]; /* yes, twice as much */
+
+		/* that'll make sure that expansion won't crap over data */
+		if (copy_from_user(buf + fsize / 4, fp, fsize))
+			return 1;
+
+		/* point of no return */
+		regs->format = formatvec >> 12;
+		regs->vector = formatvec & 0xfff;
+#define frame_offset (sizeof(struct pt_regs)+sizeof(struct switch_stack))
+		__asm__ __volatile__
+			("   movel %0,%/a0\n\t"
+			 "   subl %1,%/a0\n\t"     /* make room on stack */
+			 "   movel %/a0,%/sp\n\t"  /* set stack pointer */
+			 /* move switch_stack and pt_regs */
+			 "1: movel %0@+,%/a0@+\n\t"
+			 "   dbra %2,1b\n\t"
+			 "   lea %/sp@(%c3),%/a0\n\t" /* add offset of fmt */
+			 "   lsrl  #2,%1\n\t"
+			 "   subql #1,%1\n\t"
+			 /* copy to the gap we'd made */
+			 "2: movel %4@+,%/a0@+\n\t"
+			 "   dbra %1,2b\n\t"
+			 "   bral ret_from_signal\n"
+			 : /* no outputs, it doesn't ever return */
+			 : "a" (sw), "d" (fsize), "d" (frame_offset/4-1),
+			   "n" (frame_offset), "a" (buf + fsize/4)
+			 : "a0");
+#undef frame_offset
+	}
+	return 0;
+}
+
+static inline int
+restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *usc, void __user *fp)
+{
+	int formatvec;
+	struct sigcontext context;
+	int err;
+
+	/* Always make any pending restarted system calls return -EINTR */
+	current_thread_info()->restart_block.fn = do_no_restart_syscall;
+
+	/* get previous context */
+	if (copy_from_user(&context, usc, sizeof(context)))
+		goto badframe;
+
+	/* restore passed registers */
+	regs->d0 = context.sc_d0;
+	regs->d1 = context.sc_d1;
+	regs->a0 = context.sc_a0;
+	regs->a1 = context.sc_a1;
+	regs->sr = (regs->sr & 0xff00) | (context.sc_sr & 0xff);
+	regs->pc = context.sc_pc;
+	regs->orig_d0 = -1;		/* disable syscall checks */
+	wrusp(context.sc_usp);
+	formatvec = context.sc_formatvec;
+
+	err = restore_fpu_state(&context);
+
+	if (err || mangle_kernel_stack(regs, formatvec, fp))
+		goto badframe;
+
+	return 0;
+
+badframe:
+	return 1;
+}
+
+static inline int
+rt_restore_ucontext(struct pt_regs *regs, struct switch_stack *sw,
+		    struct ucontext __user *uc)
+{
+	int temp;
+	greg_t __user *gregs = uc->uc_mcontext.gregs;
+	unsigned long usp;
+	int err;
+
+	/* Always make any pending restarted system calls return -EINTR */
+	current_thread_info()->restart_block.fn = do_no_restart_syscall;
+
+	err = __get_user(temp, &uc->uc_mcontext.version);
+	if (temp != MCONTEXT_VERSION)
+		goto badframe;
+	/* restore passed registers */
+	err |= __get_user(regs->d0, &gregs[0]);
+	err |= __get_user(regs->d1, &gregs[1]);
+	err |= __get_user(regs->d2, &gregs[2]);
+	err |= __get_user(regs->d3, &gregs[3]);
+	err |= __get_user(regs->d4, &gregs[4]);
+	err |= __get_user(regs->d5, &gregs[5]);
+	err |= __get_user(sw->d6, &gregs[6]);
+	err |= __get_user(sw->d7, &gregs[7]);
+	err |= __get_user(regs->a0, &gregs[8]);
+	err |= __get_user(regs->a1, &gregs[9]);
+	err |= __get_user(regs->a2, &gregs[10]);
+	err |= __get_user(sw->a3, &gregs[11]);
+	err |= __get_user(sw->a4, &gregs[12]);
+	err |= __get_user(sw->a5, &gregs[13]);
+	err |= __get_user(sw->a6, &gregs[14]);
+	err |= __get_user(usp, &gregs[15]);
+	wrusp(usp);
+	err |= __get_user(regs->pc, &gregs[16]);
+	err |= __get_user(temp, &gregs[17]);
+	regs->sr = (regs->sr & 0xff00) | (temp & 0xff);
+	regs->orig_d0 = -1;		/* disable syscall checks */
+	err |= __get_user(temp, &uc->uc_formatvec);
+
+	err |= rt_restore_fpu_state(uc);
+
+	if (err || do_sigaltstack(&uc->uc_stack, NULL, usp) == -EFAULT)
+		goto badframe;
+
+	if (mangle_kernel_stack(regs, temp, &uc->uc_extra))
+		goto badframe;
+
+	return 0;
+
+badframe:
+	return 1;
+}
+
+asmlinkage int do_sigreturn(unsigned long __unused)
+{
+	struct switch_stack *sw = (struct switch_stack *) &__unused;
+	struct pt_regs *regs = (struct pt_regs *) (sw + 1);
+	unsigned long usp = rdusp();
+	struct sigframe __user *frame = (struct sigframe __user *)(usp - 4);
+	sigset_t set;
+
+	if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
+		goto badframe;
+	if (__get_user(set.sig[0], &frame->sc.sc_mask) ||
+	    (_NSIG_WORDS > 1 &&
+	     __copy_from_user(&set.sig[1], &frame->extramask,
+			      sizeof(frame->extramask))))
+		goto badframe;
+
+	sigdelsetmask(&set, ~_BLOCKABLE);
+	current->blocked = set;
+	recalc_sigpending();
+
+	if (restore_sigcontext(regs, &frame->sc, frame + 1))
+		goto badframe;
+	return regs->d0;
+
+badframe:
+	force_sig(SIGSEGV, current);
+	return 0;
+}
+
+asmlinkage int do_rt_sigreturn(unsigned long __unused)
+{
+	struct switch_stack *sw = (struct switch_stack *) &__unused;
+	struct pt_regs *regs = (struct pt_regs *) (sw + 1);
+	unsigned long usp = rdusp();
+	struct rt_sigframe __user *frame = (struct rt_sigframe __user *)(usp - 4);
+	sigset_t set;
+
+	if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
+		goto badframe;
+	if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
+		goto badframe;
+
+	sigdelsetmask(&set, ~_BLOCKABLE);
+	current->blocked = set;
+	recalc_sigpending();
+
+	if (rt_restore_ucontext(regs, sw, &frame->uc))
+		goto badframe;
+	return regs->d0;
+
+badframe:
+	force_sig(SIGSEGV, current);
+	return 0;
+}
+
+/*
+ * Set up a signal frame.
+ */
+
+static inline void save_fpu_state(struct sigcontext *sc, struct pt_regs *regs)
+{
+	if (FPU_IS_EMU) {
+		/* save registers */
+		memcpy(sc->sc_fpcntl, current->thread.fpcntl, 12);
+		memcpy(sc->sc_fpregs, current->thread.fp, 24);
+		return;
+	}
+
+	__asm__ volatile (".chip 68k/68881\n\t"
+			  "fsave %0\n\t"
+			  ".chip 68k"
+			  : : "m" (*sc->sc_fpstate) : "memory");
+
+	if (CPU_IS_060 ? sc->sc_fpstate[2] : sc->sc_fpstate[0]) {
+		fpu_version = sc->sc_fpstate[0];
+		if (CPU_IS_020_OR_030 &&
+		    regs->vector >= (VEC_FPBRUC * 4) &&
+		    regs->vector <= (VEC_FPNAN * 4)) {
+			/* Clear pending exception in 68882 idle frame */
+			if (*(unsigned short *) sc->sc_fpstate == 0x1f38)
+				sc->sc_fpstate[0x38] |= 1 << 3;
+		}
+		__asm__ volatile (".chip 68k/68881\n\t"
+				  "fmovemx %%fp0-%%fp1,%0\n\t"
+				  "fmoveml %%fpcr/%%fpsr/%%fpiar,%1\n\t"
+				  ".chip 68k"
+				  : "=m" (*sc->sc_fpregs),
+				    "=m" (*sc->sc_fpcntl)
+				  : /* no inputs */
+				  : "memory");
+	}
+}
+
+static inline int rt_save_fpu_state(struct ucontext __user *uc, struct pt_regs *regs)
+{
+	unsigned char fpstate[FPCONTEXT_SIZE];
+	int context_size = CPU_IS_060 ? 8 : 0;
+	int err = 0;
+
+	if (FPU_IS_EMU) {
+		/* save fpu control register */
+		err |= copy_to_user(uc->uc_mcontext.fpregs.f_fpcntl,
+				current->thread.fpcntl, 12);
+		/* save all other fpu register */
+		err |= copy_to_user(uc->uc_mcontext.fpregs.f_fpregs,
+				current->thread.fp, 96);
+		return err;
+	}
+
+	__asm__ volatile (".chip 68k/68881\n\t"
+			  "fsave %0\n\t"
+			  ".chip 68k"
+			  : : "m" (*fpstate) : "memory");
+
+	err |= __put_user(*(long *)fpstate, (long __user *)&uc->uc_fpstate);
+	if (CPU_IS_060 ? fpstate[2] : fpstate[0]) {
+		fpregset_t fpregs;
+		if (!CPU_IS_060)
+			context_size = fpstate[1];
+		fpu_version = fpstate[0];
+		if (CPU_IS_020_OR_030 &&
+		    regs->vector >= (VEC_FPBRUC * 4) &&
+		    regs->vector <= (VEC_FPNAN * 4)) {
+			/* Clear pending exception in 68882 idle frame */
+			if (*(unsigned short *) fpstate == 0x1f38)
+				fpstate[0x38] |= 1 << 3;
+		}
+		__asm__ volatile (".chip 68k/68881\n\t"
+				  "fmovemx %%fp0-%%fp7,%0\n\t"
+				  "fmoveml %%fpcr/%%fpsr/%%fpiar,%1\n\t"
+				  ".chip 68k"
+				  : "=m" (*fpregs.f_fpregs),
+				    "=m" (*fpregs.f_fpcntl)
+				  : /* no inputs */
+				  : "memory");
+		err |= copy_to_user(&uc->uc_mcontext.fpregs, &fpregs,
+				    sizeof(fpregs));
+	}
+	if (context_size)
+		err |= copy_to_user((long __user *)&uc->uc_fpstate + 1, fpstate + 4,
+				    context_size);
+	return err;
+}
+
+static void setup_sigcontext(struct sigcontext *sc, struct pt_regs *regs,
+			     unsigned long mask)
+{
+	sc->sc_mask = mask;
+	sc->sc_usp = rdusp();
+	sc->sc_d0 = regs->d0;
+	sc->sc_d1 = regs->d1;
+	sc->sc_a0 = regs->a0;
+	sc->sc_a1 = regs->a1;
+	sc->sc_sr = regs->sr;
+	sc->sc_pc = regs->pc;
+	sc->sc_formatvec = regs->format << 12 | regs->vector;
+	save_fpu_state(sc, regs);
+}
+
+static inline int rt_setup_ucontext(struct ucontext __user *uc, struct pt_regs *regs)
+{
+	struct switch_stack *sw = (struct switch_stack *)regs - 1;
+	greg_t __user *gregs = uc->uc_mcontext.gregs;
+	int err = 0;
+
+	err |= __put_user(MCONTEXT_VERSION, &uc->uc_mcontext.version);
+	err |= __put_user(regs->d0, &gregs[0]);
+	err |= __put_user(regs->d1, &gregs[1]);
+	err |= __put_user(regs->d2, &gregs[2]);
+	err |= __put_user(regs->d3, &gregs[3]);
+	err |= __put_user(regs->d4, &gregs[4]);
+	err |= __put_user(regs->d5, &gregs[5]);
+	err |= __put_user(sw->d6, &gregs[6]);
+	err |= __put_user(sw->d7, &gregs[7]);
+	err |= __put_user(regs->a0, &gregs[8]);
+	err |= __put_user(regs->a1, &gregs[9]);
+	err |= __put_user(regs->a2, &gregs[10]);
+	err |= __put_user(sw->a3, &gregs[11]);
+	err |= __put_user(sw->a4, &gregs[12]);
+	err |= __put_user(sw->a5, &gregs[13]);
+	err |= __put_user(sw->a6, &gregs[14]);
+	err |= __put_user(rdusp(), &gregs[15]);
+	err |= __put_user(regs->pc, &gregs[16]);
+	err |= __put_user(regs->sr, &gregs[17]);
+	err |= __put_user((regs->format << 12) | regs->vector, &uc->uc_formatvec);
+	err |= rt_save_fpu_state(uc, regs);
+	return err;
+}
+
+static inline void push_cache (unsigned long vaddr)
+{
+	/*
+	 * Using the old cache_push_v() was really a big waste.
+	 *
+	 * What we are trying to do is to flush 8 bytes to ram.
+	 * Flushing 2 cache lines of 16 bytes is much cheaper than
+	 * flushing 1 or 2 pages, as previously done in
+	 * cache_push_v().
+	 *                                                     Jes
+	 */
+	if (CPU_IS_040) {
+		unsigned long temp;
+
+		__asm__ __volatile__ (".chip 68040\n\t"
+				      "nop\n\t"
+				      "ptestr (%1)\n\t"
+				      "movec %%mmusr,%0\n\t"
+				      ".chip 68k"
+				      : "=r" (temp)
+				      : "a" (vaddr));
+
+		temp &= PAGE_MASK;
+		temp |= vaddr & ~PAGE_MASK;
+
+		__asm__ __volatile__ (".chip 68040\n\t"
+				      "nop\n\t"
+				      "cpushl %%bc,(%0)\n\t"
+				      ".chip 68k"
+				      : : "a" (temp));
+	}
+	else if (CPU_IS_060) {
+		unsigned long temp;
+		__asm__ __volatile__ (".chip 68060\n\t"
+				      "plpar (%0)\n\t"
+				      ".chip 68k"
+				      : "=a" (temp)
+				      : "0" (vaddr));
+		__asm__ __volatile__ (".chip 68060\n\t"
+				      "cpushl %%bc,(%0)\n\t"
+				      ".chip 68k"
+				      : : "a" (temp));
+	}
+	else {
+		/*
+		 * 68030/68020 have no writeback cache;
+		 * still need to clear icache.
+		 * Note that vaddr is guaranteed to be long word aligned.
+		 */
+		unsigned long temp;
+		asm volatile ("movec %%cacr,%0" : "=r" (temp));
+		temp += 4;
+		asm volatile ("movec %0,%%caar\n\t"
+			      "movec %1,%%cacr"
+			      : : "r" (vaddr), "r" (temp));
+		asm volatile ("movec %0,%%caar\n\t"
+			      "movec %1,%%cacr"
+			      : : "r" (vaddr + 4), "r" (temp));
+	}
+}
+
+static inline void __user *
+get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, size_t frame_size)
+{
+	unsigned long usp;
+
+	/* Default to using normal stack.  */
+	usp = rdusp();
+
+	/* This is the X/Open sanctioned signal stack switching.  */
+	if (ka->sa.sa_flags & SA_ONSTACK) {
+		if (!sas_ss_flags(usp))
+			usp = current->sas_ss_sp + current->sas_ss_size;
+	}
+	return (void __user *)((usp - frame_size) & -8UL);
+}
+
+static int setup_frame (int sig, struct k_sigaction *ka,
+			 sigset_t *set, struct pt_regs *regs)
+{
+	struct sigframe __user *frame;
+	int fsize = frame_extra_sizes[regs->format];
+	struct sigcontext context;
+	int err = 0;
+
+	if (fsize < 0) {
+#ifdef DEBUG
+		printk ("setup_frame: Unknown frame format %#x\n",
+			regs->format);
+#endif
+		goto give_sigsegv;
+	}
+
+	frame = get_sigframe(ka, regs, sizeof(*frame) + fsize);
+
+	if (fsize)
+		err |= copy_to_user (frame + 1, regs + 1, fsize);
+
+	err |= __put_user((current_thread_info()->exec_domain
+			   && current_thread_info()->exec_domain->signal_invmap
+			   && sig < 32
+			   ? current_thread_info()->exec_domain->signal_invmap[sig]
+			   : sig),
+			  &frame->sig);
+
+	err |= __put_user(regs->vector, &frame->code);
+	err |= __put_user(&frame->sc, &frame->psc);
+
+	if (_NSIG_WORDS > 1)
+		err |= copy_to_user(frame->extramask, &set->sig[1],
+				    sizeof(frame->extramask));
+
+	setup_sigcontext(&context, regs, set->sig[0]);
+	err |= copy_to_user (&frame->sc, &context, sizeof(context));
+
+	/* Set up to return from userspace.  */
+	err |= __put_user(frame->retcode, &frame->pretcode);
+	/* moveq #,d0; trap #0 */
+	err |= __put_user(0x70004e40 + (__NR_sigreturn << 16),
+			  (long __user *)(frame->retcode));
+
+	if (err)
+		goto give_sigsegv;
+
+	push_cache ((unsigned long) &frame->retcode);
+
+	/*
+	 * Set up registers for signal handler.  All the state we are about
+	 * to destroy is successfully copied to sigframe.
+	 */
+	wrusp ((unsigned long) frame);
+	regs->pc = (unsigned long) ka->sa.sa_handler;
+
+	/*
+	 * This is subtle; if we build more than one sigframe, all but the
+	 * first one will see frame format 0 and have fsize == 0, so we won't
+	 * screw stkadj.
+	 */
+	if (fsize)
+		regs->stkadj = fsize;
+
+	/* Prepare to skip over the extra stuff in the exception frame.  */
+	if (regs->stkadj) {
+		struct pt_regs *tregs =
+			(struct pt_regs *)((ulong)regs + regs->stkadj);
+#ifdef DEBUG
+		printk("Performing stackadjust=%04x\n", regs->stkadj);
+#endif
+		/* This must be copied with decreasing addresses to
+                   handle overlaps.  */
+		tregs->vector = 0;
+		tregs->format = 0;
+		tregs->pc = regs->pc;
+		tregs->sr = regs->sr;
+	}
+	return 0;
+
+give_sigsegv:
+	force_sigsegv(sig, current);
+	return err;
+}
+
+static int setup_rt_frame (int sig, struct k_sigaction *ka, siginfo_t *info,
+			    sigset_t *set, struct pt_regs *regs)
+{
+	struct rt_sigframe __user *frame;
+	int fsize = frame_extra_sizes[regs->format];
+	int err = 0;
+
+	if (fsize < 0) {
+#ifdef DEBUG
+		printk ("setup_frame: Unknown frame format %#x\n",
+			regs->format);
+#endif
+		goto give_sigsegv;
+	}
+
+	frame = get_sigframe(ka, regs, sizeof(*frame));
+
+	if (fsize)
+		err |= copy_to_user (&frame->uc.uc_extra, regs + 1, fsize);
+
+	err |= __put_user((current_thread_info()->exec_domain
+			   && current_thread_info()->exec_domain->signal_invmap
+			   && sig < 32
+			   ? current_thread_info()->exec_domain->signal_invmap[sig]
+			   : sig),
+			  &frame->sig);
+	err |= __put_user(&frame->info, &frame->pinfo);
+	err |= __put_user(&frame->uc, &frame->puc);
+	err |= copy_siginfo_to_user(&frame->info, info);
+
+	/* Create the ucontext.  */
+	err |= __put_user(0, &frame->uc.uc_flags);
+	err |= __put_user(NULL, &frame->uc.uc_link);
+	err |= __put_user((void __user *)current->sas_ss_sp,
+			  &frame->uc.uc_stack.ss_sp);
+	err |= __put_user(sas_ss_flags(rdusp()),
+			  &frame->uc.uc_stack.ss_flags);
+	err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size);
+	err |= rt_setup_ucontext(&frame->uc, regs);
+	err |= copy_to_user (&frame->uc.uc_sigmask, set, sizeof(*set));
+
+	/* Set up to return from userspace.  */
+	err |= __put_user(frame->retcode, &frame->pretcode);
+#ifdef __mcoldfire__
+	/* movel #__NR_rt_sigreturn,d0; trap #0 */
+	err |= __put_user(0x203c0000, (long __user *)(frame->retcode + 0));
+	err |= __put_user(0x00004e40 + (__NR_rt_sigreturn << 16),
+			  (long __user *)(frame->retcode + 4));
+#else
+	/* moveq #,d0; notb d0; trap #0 */
+	err |= __put_user(0x70004600 + ((__NR_rt_sigreturn ^ 0xff) << 16),
+			  (long __user *)(frame->retcode + 0));
+	err |= __put_user(0x4e40, (short __user *)(frame->retcode + 4));
+#endif
+
+	if (err)
+		goto give_sigsegv;
+
+	push_cache ((unsigned long) &frame->retcode);
+
+	/*
+	 * Set up registers for signal handler.  All the state we are about
+	 * to destroy is successfully copied to sigframe.
+	 */
+	wrusp ((unsigned long) frame);
+	regs->pc = (unsigned long) ka->sa.sa_handler;
+
+	/*
+	 * This is subtle; if we build more than one sigframe, all but the
+	 * first one will see frame format 0 and have fsize == 0, so we won't
+	 * screw stkadj.
+	 */
+	if (fsize)
+		regs->stkadj = fsize;
+
+	/* Prepare to skip over the extra stuff in the exception frame.  */
+	if (regs->stkadj) {
+		struct pt_regs *tregs =
+			(struct pt_regs *)((ulong)regs + regs->stkadj);
+#ifdef DEBUG
+		printk("Performing stackadjust=%04x\n", regs->stkadj);
+#endif
+		/* This must be copied with decreasing addresses to
+                   handle overlaps.  */
+		tregs->vector = 0;
+		tregs->format = 0;
+		tregs->pc = regs->pc;
+		tregs->sr = regs->sr;
+	}
+	return 0;
+
+give_sigsegv:
+	force_sigsegv(sig, current);
+	return err;
+}
+
+static inline void
+handle_restart(struct pt_regs *regs, struct k_sigaction *ka, int has_handler)
+{
+	switch (regs->d0) {
+	case -ERESTARTNOHAND:
+		if (!has_handler)
+			goto do_restart;
+		regs->d0 = -EINTR;
+		break;
+
+	case -ERESTART_RESTARTBLOCK:
+		if (!has_handler) {
+			regs->d0 = __NR_restart_syscall;
+			regs->pc -= 2;
+			break;
+		}
+		regs->d0 = -EINTR;
+		break;
+
+	case -ERESTARTSYS:
+		if (has_handler && !(ka->sa.sa_flags & SA_RESTART)) {
+			regs->d0 = -EINTR;
+			break;
+		}
+	/* fallthrough */
+	case -ERESTARTNOINTR:
+	do_restart:
+		regs->d0 = regs->orig_d0;
+		regs->pc -= 2;
+		break;
+	}
+}
+
+void ptrace_signal_deliver(struct pt_regs *regs, void *cookie)
+{
+	if (regs->orig_d0 < 0)
+		return;
+	switch (regs->d0) {
+	case -ERESTARTNOHAND:
+	case -ERESTARTSYS:
+	case -ERESTARTNOINTR:
+		regs->d0 = regs->orig_d0;
+		regs->orig_d0 = -1;
+		regs->pc -= 2;
+		break;
+	}
+}
+
+/*
+ * OK, we're invoking a handler
+ */
+static void
+handle_signal(int sig, struct k_sigaction *ka, siginfo_t *info,
+	      sigset_t *oldset, struct pt_regs *regs)
+{
+	int err;
+	/* are we from a system call? */
+	if (regs->orig_d0 >= 0)
+		/* If so, check system call restarting.. */
+		handle_restart(regs, ka, 1);
+
+	/* set up the stack frame */
+	if (ka->sa.sa_flags & SA_SIGINFO)
+		err = setup_rt_frame(sig, ka, info, oldset, regs);
+	else
+		err = setup_frame(sig, ka, oldset, regs);
+
+	if (err)
+		return;
+
+	sigorsets(&current->blocked,&current->blocked,&ka->sa.sa_mask);
+	if (!(ka->sa.sa_flags & SA_NODEFER))
+		sigaddset(&current->blocked,sig);
+	recalc_sigpending();
+
+	if (test_thread_flag(TIF_DELAYED_TRACE)) {
+		regs->sr &= ~0x8000;
+		send_sig(SIGTRAP, current, 1);
+	}
+
+	clear_thread_flag(TIF_RESTORE_SIGMASK);
+}
+
+/*
+ * Note that 'init' is a special process: it doesn't get signals it doesn't
+ * want to handle. Thus you cannot kill init even with a SIGKILL even by
+ * mistake.
+ */
+asmlinkage void do_signal(struct pt_regs *regs)
+{
+	siginfo_t info;
+	struct k_sigaction ka;
+	int signr;
+	sigset_t *oldset;
+
+	current->thread.esp0 = (unsigned long) regs;
+
+	if (test_thread_flag(TIF_RESTORE_SIGMASK))
+		oldset = &current->saved_sigmask;
+	else
+		oldset = &current->blocked;
+
+	signr = get_signal_to_deliver(&info, &ka, regs, NULL);
+	if (signr > 0) {
+		/* Whee!  Actually deliver the signal.  */
+		handle_signal(signr, &ka, &info, oldset, regs);
+		return;
+	}
+
+	/* Did we come from a system call? */
+	if (regs->orig_d0 >= 0)
+		/* Restart the system call - no handlers present */
+		handle_restart(regs, NULL, 0);
+
+	/* If there's no signal to deliver, we just restore the saved mask.  */
+	if (test_thread_flag(TIF_RESTORE_SIGMASK)) {
+		clear_thread_flag(TIF_RESTORE_SIGMASK);
+		sigprocmask(SIG_SETMASK, &current->saved_sigmask, NULL);
+	}
+}
diff --git a/arch/m68knommu/kernel/signal.c b/arch/m68k/kernel/signal_no.c
index 36a81bb6835a..36a81bb6835a 100644
--- a/arch/m68knommu/kernel/signal.c
+++ b/arch/m68k/kernel/signal_no.c
diff --git a/arch/m68k/kernel/sys_m68k.c b/arch/m68k/kernel/sys_m68k.c
index 3db2e7f902aa..63013df33584 100644
--- a/arch/m68k/kernel/sys_m68k.c
+++ b/arch/m68k/kernel/sys_m68k.c
@@ -1,546 +1,5 @@
-/*
- * linux/arch/m68k/kernel/sys_m68k.c
- *
- * This file contains various random system calls that
- * have a non-standard calling sequence on the Linux/m68k
- * platform.
- */
-
-#include <linux/capability.h>
-#include <linux/errno.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/fs.h>
-#include <linux/smp.h>
-#include <linux/sem.h>
-#include <linux/msg.h>
-#include <linux/shm.h>
-#include <linux/stat.h>
-#include <linux/syscalls.h>
-#include <linux/mman.h>
-#include <linux/file.h>
-#include <linux/ipc.h>
-
-#include <asm/setup.h>
-#include <asm/uaccess.h>
-#include <asm/cachectl.h>
-#include <asm/traps.h>
-#include <asm/page.h>
-#include <asm/unistd.h>
-#include <linux/elf.h>
-#include <asm/tlb.h>
-
-asmlinkage int do_page_fault(struct pt_regs *regs, unsigned long address,
-			     unsigned long error_code);
-
-asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
-	unsigned long prot, unsigned long flags,
-	unsigned long fd, unsigned long pgoff)
-{
-	/*
-	 * This is wrong for sun3 - there PAGE_SIZE is 8Kb,
-	 * so we need to shift the argument down by 1; m68k mmap64(3)
-	 * (in libc) expects the last argument of mmap2 in 4Kb units.
-	 */
-	return sys_mmap_pgoff(addr, len, prot, flags, fd, pgoff);
-}
-
-/* Convert virtual (user) address VADDR to physical address PADDR */
-#define virt_to_phys_040(vaddr)						\
-({									\
-  unsigned long _mmusr, _paddr;						\
-									\
-  __asm__ __volatile__ (".chip 68040\n\t"				\
-			"ptestr (%1)\n\t"				\
-			"movec %%mmusr,%0\n\t"				\
-			".chip 68k"					\
-			: "=r" (_mmusr)					\
-			: "a" (vaddr));					\
-  _paddr = (_mmusr & MMU_R_040) ? (_mmusr & PAGE_MASK) : 0;		\
-  _paddr;								\
-})
-
-static inline int
-cache_flush_040 (unsigned long addr, int scope, int cache, unsigned long len)
-{
-  unsigned long paddr, i;
-
-  switch (scope)
-    {
-    case FLUSH_SCOPE_ALL:
-      switch (cache)
-	{
-	case FLUSH_CACHE_DATA:
-	  /* This nop is needed for some broken versions of the 68040.  */
-	  __asm__ __volatile__ ("nop\n\t"
-				".chip 68040\n\t"
-				"cpusha %dc\n\t"
-				".chip 68k");
-	  break;
-	case FLUSH_CACHE_INSN:
-	  __asm__ __volatile__ ("nop\n\t"
-				".chip 68040\n\t"
-				"cpusha %ic\n\t"
-				".chip 68k");
-	  break;
-	default:
-	case FLUSH_CACHE_BOTH:
-	  __asm__ __volatile__ ("nop\n\t"
-				".chip 68040\n\t"
-				"cpusha %bc\n\t"
-				".chip 68k");
-	  break;
-	}
-      break;
-
-    case FLUSH_SCOPE_LINE:
-      /* Find the physical address of the first mapped page in the
-	 address range.  */
-      if ((paddr = virt_to_phys_040(addr))) {
-        paddr += addr & ~(PAGE_MASK | 15);
-        len = (len + (addr & 15) + 15) >> 4;
-      } else {
-	unsigned long tmp = PAGE_SIZE - (addr & ~PAGE_MASK);
-
-	if (len <= tmp)
-	  return 0;
-	addr += tmp;
-	len -= tmp;
-	tmp = PAGE_SIZE;
-	for (;;)
-	  {
-	    if ((paddr = virt_to_phys_040(addr)))
-	      break;
-	    if (len <= tmp)
-	      return 0;
-	    addr += tmp;
-	    len -= tmp;
-	  }
-	len = (len + 15) >> 4;
-      }
-      i = (PAGE_SIZE - (paddr & ~PAGE_MASK)) >> 4;
-      while (len--)
-	{
-	  switch (cache)
-	    {
-	    case FLUSH_CACHE_DATA:
-	      __asm__ __volatile__ ("nop\n\t"
-				    ".chip 68040\n\t"
-				    "cpushl %%dc,(%0)\n\t"
-				    ".chip 68k"
-				    : : "a" (paddr));
-	      break;
-	    case FLUSH_CACHE_INSN:
-	      __asm__ __volatile__ ("nop\n\t"
-				    ".chip 68040\n\t"
-				    "cpushl %%ic,(%0)\n\t"
-				    ".chip 68k"
-				    : : "a" (paddr));
-	      break;
-	    default:
-	    case FLUSH_CACHE_BOTH:
-	      __asm__ __volatile__ ("nop\n\t"
-				    ".chip 68040\n\t"
-				    "cpushl %%bc,(%0)\n\t"
-				    ".chip 68k"
-				    : : "a" (paddr));
-	      break;
-	    }
-	  if (!--i && len)
-	    {
-	      /*
-	       * No need to page align here since it is done by
-	       * virt_to_phys_040().
-	       */
-	      addr += PAGE_SIZE;
-	      i = PAGE_SIZE / 16;
-	      /* Recompute physical address when crossing a page
-	         boundary. */
-	      for (;;)
-		{
-		  if ((paddr = virt_to_phys_040(addr)))
-		    break;
-		  if (len <= i)
-		    return 0;
-		  len -= i;
-		  addr += PAGE_SIZE;
-		}
-	    }
-	  else
-	    paddr += 16;
-	}
-      break;
-
-    default:
-    case FLUSH_SCOPE_PAGE:
-      len += (addr & ~PAGE_MASK) + (PAGE_SIZE - 1);
-      for (len >>= PAGE_SHIFT; len--; addr += PAGE_SIZE)
-	{
-	  if (!(paddr = virt_to_phys_040(addr)))
-	    continue;
-	  switch (cache)
-	    {
-	    case FLUSH_CACHE_DATA:
-	      __asm__ __volatile__ ("nop\n\t"
-				    ".chip 68040\n\t"
-				    "cpushp %%dc,(%0)\n\t"
-				    ".chip 68k"
-				    : : "a" (paddr));
-	      break;
-	    case FLUSH_CACHE_INSN:
-	      __asm__ __volatile__ ("nop\n\t"
-				    ".chip 68040\n\t"
-				    "cpushp %%ic,(%0)\n\t"
-				    ".chip 68k"
-				    : : "a" (paddr));
-	      break;
-	    default:
-	    case FLUSH_CACHE_BOTH:
-	      __asm__ __volatile__ ("nop\n\t"
-				    ".chip 68040\n\t"
-				    "cpushp %%bc,(%0)\n\t"
-				    ".chip 68k"
-				    : : "a" (paddr));
-	      break;
-	    }
-	}
-      break;
-    }
-  return 0;
-}
-
-#define virt_to_phys_060(vaddr)				\
-({							\
-  unsigned long paddr;					\
-  __asm__ __volatile__ (".chip 68060\n\t"		\
-			"plpar (%0)\n\t"		\
-			".chip 68k"			\
-			: "=a" (paddr)			\
-			: "0" (vaddr));			\
-  (paddr); /* XXX */					\
-})
-
-static inline int
-cache_flush_060 (unsigned long addr, int scope, int cache, unsigned long len)
-{
-  unsigned long paddr, i;
-
-  /*
-   * 68060 manual says:
-   *  cpush %dc : flush DC, remains valid (with our %cacr setup)
-   *  cpush %ic : invalidate IC
-   *  cpush %bc : flush DC + invalidate IC
-   */
-  switch (scope)
-    {
-    case FLUSH_SCOPE_ALL:
-      switch (cache)
-	{
-	case FLUSH_CACHE_DATA:
-	  __asm__ __volatile__ (".chip 68060\n\t"
-				"cpusha %dc\n\t"
-				".chip 68k");
-	  break;
-	case FLUSH_CACHE_INSN:
-	  __asm__ __volatile__ (".chip 68060\n\t"
-				"cpusha %ic\n\t"
-				".chip 68k");
-	  break;
-	default:
-	case FLUSH_CACHE_BOTH:
-	  __asm__ __volatile__ (".chip 68060\n\t"
-				"cpusha %bc\n\t"
-				".chip 68k");
-	  break;
-	}
-      break;
-
-    case FLUSH_SCOPE_LINE:
-      /* Find the physical address of the first mapped page in the
-	 address range.  */
-      len += addr & 15;
-      addr &= -16;
-      if (!(paddr = virt_to_phys_060(addr))) {
-	unsigned long tmp = PAGE_SIZE - (addr & ~PAGE_MASK);
-
-	if (len <= tmp)
-	  return 0;
-	addr += tmp;
-	len -= tmp;
-	tmp = PAGE_SIZE;
-	for (;;)
-	  {
-	    if ((paddr = virt_to_phys_060(addr)))
-	      break;
-	    if (len <= tmp)
-	      return 0;
-	    addr += tmp;
-	    len -= tmp;
-	  }
-      }
-      len = (len + 15) >> 4;
-      i = (PAGE_SIZE - (paddr & ~PAGE_MASK)) >> 4;
-      while (len--)
-	{
-	  switch (cache)
-	    {
-	    case FLUSH_CACHE_DATA:
-	      __asm__ __volatile__ (".chip 68060\n\t"
-				    "cpushl %%dc,(%0)\n\t"
-				    ".chip 68k"
-				    : : "a" (paddr));
-	      break;
-	    case FLUSH_CACHE_INSN:
-	      __asm__ __volatile__ (".chip 68060\n\t"
-				    "cpushl %%ic,(%0)\n\t"
-				    ".chip 68k"
-				    : : "a" (paddr));
-	      break;
-	    default:
-	    case FLUSH_CACHE_BOTH:
-	      __asm__ __volatile__ (".chip 68060\n\t"
-				    "cpushl %%bc,(%0)\n\t"
-				    ".chip 68k"
-				    : : "a" (paddr));
-	      break;
-	    }
-	  if (!--i && len)
-	    {
-
-	      /*
-	       * We just want to jump to the first cache line
-	       * in the next page.
-	       */
-	      addr += PAGE_SIZE;
-	      addr &= PAGE_MASK;
-
-	      i = PAGE_SIZE / 16;
-	      /* Recompute physical address when crossing a page
-	         boundary. */
-	      for (;;)
-	        {
-	          if ((paddr = virt_to_phys_060(addr)))
-	            break;
-	          if (len <= i)
-	            return 0;
-	          len -= i;
-	          addr += PAGE_SIZE;
-	        }
-	    }
-	  else
-	    paddr += 16;
-	}
-      break;
-
-    default:
-    case FLUSH_SCOPE_PAGE:
-      len += (addr & ~PAGE_MASK) + (PAGE_SIZE - 1);
-      addr &= PAGE_MASK;	/* Workaround for bug in some
-				   revisions of the 68060 */
-      for (len >>= PAGE_SHIFT; len--; addr += PAGE_SIZE)
-	{
-	  if (!(paddr = virt_to_phys_060(addr)))
-	    continue;
-	  switch (cache)
-	    {
-	    case FLUSH_CACHE_DATA:
-	      __asm__ __volatile__ (".chip 68060\n\t"
-				    "cpushp %%dc,(%0)\n\t"
-				    ".chip 68k"
-				    : : "a" (paddr));
-	      break;
-	    case FLUSH_CACHE_INSN:
-	      __asm__ __volatile__ (".chip 68060\n\t"
-				    "cpushp %%ic,(%0)\n\t"
-				    ".chip 68k"
-				    : : "a" (paddr));
-	      break;
-	    default:
-	    case FLUSH_CACHE_BOTH:
-	      __asm__ __volatile__ (".chip 68060\n\t"
-				    "cpushp %%bc,(%0)\n\t"
-				    ".chip 68k"
-				    : : "a" (paddr));
-	      break;
-	    }
-	}
-      break;
-    }
-  return 0;
-}
-
-/* sys_cacheflush -- flush (part of) the processor cache.  */
-asmlinkage int
-sys_cacheflush (unsigned long addr, int scope, int cache, unsigned long len)
-{
-	struct vm_area_struct *vma;
-	int ret = -EINVAL;
-
-	if (scope < FLUSH_SCOPE_LINE || scope > FLUSH_SCOPE_ALL ||
-	    cache & ~FLUSH_CACHE_BOTH)
-		goto out;
-
-	if (scope == FLUSH_SCOPE_ALL) {
-		/* Only the superuser may explicitly flush the whole cache. */
-		ret = -EPERM;
-		if (!capable(CAP_SYS_ADMIN))
-			goto out;
-	} else {
-		/*
-		 * Verify that the specified address region actually belongs
-		 * to this process.
-		 */
-		vma = find_vma (current->mm, addr);
-		ret = -EINVAL;
-		/* Check for overflow.  */
-		if (addr + len < addr)
-			goto out;
-		if (vma == NULL || addr < vma->vm_start || addr + len > vma->vm_end)
-			goto out;
-	}
-
-	if (CPU_IS_020_OR_030) {
-		if (scope == FLUSH_SCOPE_LINE && len < 256) {
-			unsigned long cacr;
-			__asm__ ("movec %%cacr, %0" : "=r" (cacr));
-			if (cache & FLUSH_CACHE_INSN)
-				cacr |= 4;
-			if (cache & FLUSH_CACHE_DATA)
-				cacr |= 0x400;
-			len >>= 2;
-			while (len--) {
-				__asm__ __volatile__ ("movec %1, %%caar\n\t"
-						      "movec %0, %%cacr"
-						      : /* no outputs */
-						      : "r" (cacr), "r" (addr));
-				addr += 4;
-			}
-		} else {
-			/* Flush the whole cache, even if page granularity requested. */
-			unsigned long cacr;
-			__asm__ ("movec %%cacr, %0" : "=r" (cacr));
-			if (cache & FLUSH_CACHE_INSN)
-				cacr |= 8;
-			if (cache & FLUSH_CACHE_DATA)
-				cacr |= 0x800;
-			__asm__ __volatile__ ("movec %0, %%cacr" : : "r" (cacr));
-		}
-		ret = 0;
-		goto out;
-	} else {
-	    /*
-	     * 040 or 060: don't blindly trust 'scope', someone could
-	     * try to flush a few megs of memory.
-	     */
-
-	    if (len>=3*PAGE_SIZE && scope<FLUSH_SCOPE_PAGE)
-	        scope=FLUSH_SCOPE_PAGE;
-	    if (len>=10*PAGE_SIZE && scope<FLUSH_SCOPE_ALL)
-	        scope=FLUSH_SCOPE_ALL;
-	    if (CPU_IS_040) {
-		ret = cache_flush_040 (addr, scope, cache, len);
-	    } else if (CPU_IS_060) {
-		ret = cache_flush_060 (addr, scope, cache, len);
-	    }
-	}
-out:
-	return ret;
-}
-
-asmlinkage int sys_getpagesize(void)
-{
-	return PAGE_SIZE;
-}
-
-/*
- * Do a system call from kernel instead of calling sys_execve so we
- * end up with proper pt_regs.
- */
-int kernel_execve(const char *filename,
-		  const char *const argv[],
-		  const char *const envp[])
-{
-	register long __res asm ("%d0") = __NR_execve;
-	register long __a asm ("%d1") = (long)(filename);
-	register long __b asm ("%d2") = (long)(argv);
-	register long __c asm ("%d3") = (long)(envp);
-	asm volatile ("trap  #0" : "+d" (__res)
-			: "d" (__a), "d" (__b), "d" (__c));
-	return __res;
-}
-
-asmlinkage unsigned long sys_get_thread_area(void)
-{
-	return current_thread_info()->tp_value;
-}
-
-asmlinkage int sys_set_thread_area(unsigned long tp)
-{
-	current_thread_info()->tp_value = tp;
-	return 0;
-}
-
-/* This syscall gets its arguments in A0 (mem), D2 (oldval) and
-   D1 (newval).  */
-asmlinkage int
-sys_atomic_cmpxchg_32(unsigned long newval, int oldval, int d3, int d4, int d5,
-		      unsigned long __user * mem)
-{
-	/* This was borrowed from ARM's implementation.  */
-	for (;;) {
-		struct mm_struct *mm = current->mm;
-		pgd_t *pgd;
-		pmd_t *pmd;
-		pte_t *pte;
-		spinlock_t *ptl;
-		unsigned long mem_value;
-
-		down_read(&mm->mmap_sem);
-		pgd = pgd_offset(mm, (unsigned long)mem);
-		if (!pgd_present(*pgd))
-			goto bad_access;
-		pmd = pmd_offset(pgd, (unsigned long)mem);
-		if (!pmd_present(*pmd))
-			goto bad_access;
-		pte = pte_offset_map_lock(mm, pmd, (unsigned long)mem, &ptl);
-		if (!pte_present(*pte) || !pte_dirty(*pte)
-		    || !pte_write(*pte)) {
-			pte_unmap_unlock(pte, ptl);
-			goto bad_access;
-		}
-
-		mem_value = *mem;
-		if (mem_value == oldval)
-			*mem = newval;
-
-		pte_unmap_unlock(pte, ptl);
-		up_read(&mm->mmap_sem);
-		return mem_value;
-
-	      bad_access:
-		up_read(&mm->mmap_sem);
-		/* This is not necessarily a bad access, we can get here if
-		   a memory we're trying to write to should be copied-on-write.
-		   Make the kernel do the necessary page stuff, then re-iterate.
-		   Simulate a write access fault to do that.  */
-		{
-			/* The first argument of the function corresponds to
-			   D1, which is the first field of struct pt_regs.  */
-			struct pt_regs *fp = (struct pt_regs *)&newval;
-
-			/* '3' is an RMW flag.  */
-			if (do_page_fault(fp, (unsigned long)mem, 3))
-				/* If the do_page_fault() failed, we don't
-				   have anything meaningful to return.
-				   There should be a SIGSEGV pending for
-				   the process.  */
-				return 0xdeadbeef;
-		}
-	}
-}
-
-asmlinkage int sys_atomic_barrier(void)
-{
-	/* no code needed for uniprocs */
-	return 0;
-}
+#ifdef CONFIG_MMU
+#include "sys_m68k_mm.c"
+#else
+#include "sys_m68k_no.c"
+#endif
diff --git a/arch/m68k/kernel/sys_m68k_mm.c b/arch/m68k/kernel/sys_m68k_mm.c
new file mode 100644
index 000000000000..3db2e7f902aa
--- /dev/null
+++ b/arch/m68k/kernel/sys_m68k_mm.c
@@ -0,0 +1,546 @@
+/*
+ * linux/arch/m68k/kernel/sys_m68k.c
+ *
+ * This file contains various random system calls that
+ * have a non-standard calling sequence on the Linux/m68k
+ * platform.
+ */
+
+#include <linux/capability.h>
+#include <linux/errno.h>
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/fs.h>
+#include <linux/smp.h>
+#include <linux/sem.h>
+#include <linux/msg.h>
+#include <linux/shm.h>
+#include <linux/stat.h>
+#include <linux/syscalls.h>
+#include <linux/mman.h>
+#include <linux/file.h>
+#include <linux/ipc.h>
+
+#include <asm/setup.h>
+#include <asm/uaccess.h>
+#include <asm/cachectl.h>
+#include <asm/traps.h>
+#include <asm/page.h>
+#include <asm/unistd.h>
+#include <linux/elf.h>
+#include <asm/tlb.h>
+
+asmlinkage int do_page_fault(struct pt_regs *regs, unsigned long address,
+			     unsigned long error_code);
+
+asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
+	unsigned long prot, unsigned long flags,
+	unsigned long fd, unsigned long pgoff)
+{
+	/*
+	 * This is wrong for sun3 - there PAGE_SIZE is 8Kb,
+	 * so we need to shift the argument down by 1; m68k mmap64(3)
+	 * (in libc) expects the last argument of mmap2 in 4Kb units.
+	 */
+	return sys_mmap_pgoff(addr, len, prot, flags, fd, pgoff);
+}
+
+/* Convert virtual (user) address VADDR to physical address PADDR */
+#define virt_to_phys_040(vaddr)						\
+({									\
+  unsigned long _mmusr, _paddr;						\
+									\
+  __asm__ __volatile__ (".chip 68040\n\t"				\
+			"ptestr (%1)\n\t"				\
+			"movec %%mmusr,%0\n\t"				\
+			".chip 68k"					\
+			: "=r" (_mmusr)					\
+			: "a" (vaddr));					\
+  _paddr = (_mmusr & MMU_R_040) ? (_mmusr & PAGE_MASK) : 0;		\
+  _paddr;								\
+})
+
+static inline int
+cache_flush_040 (unsigned long addr, int scope, int cache, unsigned long len)
+{
+  unsigned long paddr, i;
+
+  switch (scope)
+    {
+    case FLUSH_SCOPE_ALL:
+      switch (cache)
+	{
+	case FLUSH_CACHE_DATA:
+	  /* This nop is needed for some broken versions of the 68040.  */
+	  __asm__ __volatile__ ("nop\n\t"
+				".chip 68040\n\t"
+				"cpusha %dc\n\t"
+				".chip 68k");
+	  break;
+	case FLUSH_CACHE_INSN:
+	  __asm__ __volatile__ ("nop\n\t"
+				".chip 68040\n\t"
+				"cpusha %ic\n\t"
+				".chip 68k");
+	  break;
+	default:
+	case FLUSH_CACHE_BOTH:
+	  __asm__ __volatile__ ("nop\n\t"
+				".chip 68040\n\t"
+				"cpusha %bc\n\t"
+				".chip 68k");
+	  break;
+	}
+      break;
+
+    case FLUSH_SCOPE_LINE:
+      /* Find the physical address of the first mapped page in the
+	 address range.  */
+      if ((paddr = virt_to_phys_040(addr))) {
+        paddr += addr & ~(PAGE_MASK | 15);
+        len = (len + (addr & 15) + 15) >> 4;
+      } else {
+	unsigned long tmp = PAGE_SIZE - (addr & ~PAGE_MASK);
+
+	if (len <= tmp)
+	  return 0;
+	addr += tmp;
+	len -= tmp;
+	tmp = PAGE_SIZE;
+	for (;;)
+	  {
+	    if ((paddr = virt_to_phys_040(addr)))
+	      break;
+	    if (len <= tmp)
+	      return 0;
+	    addr += tmp;
+	    len -= tmp;
+	  }
+	len = (len + 15) >> 4;
+      }
+      i = (PAGE_SIZE - (paddr & ~PAGE_MASK)) >> 4;
+      while (len--)
+	{
+	  switch (cache)
+	    {
+	    case FLUSH_CACHE_DATA:
+	      __asm__ __volatile__ ("nop\n\t"
+				    ".chip 68040\n\t"
+				    "cpushl %%dc,(%0)\n\t"
+				    ".chip 68k"
+				    : : "a" (paddr));
+	      break;
+	    case FLUSH_CACHE_INSN:
+	      __asm__ __volatile__ ("nop\n\t"
+				    ".chip 68040\n\t"
+				    "cpushl %%ic,(%0)\n\t"
+				    ".chip 68k"
+				    : : "a" (paddr));
+	      break;
+	    default:
+	    case FLUSH_CACHE_BOTH:
+	      __asm__ __volatile__ ("nop\n\t"
+				    ".chip 68040\n\t"
+				    "cpushl %%bc,(%0)\n\t"
+				    ".chip 68k"
+				    : : "a" (paddr));
+	      break;
+	    }
+	  if (!--i && len)
+	    {
+	      /*
+	       * No need to page align here since it is done by
+	       * virt_to_phys_040().
+	       */
+	      addr += PAGE_SIZE;
+	      i = PAGE_SIZE / 16;
+	      /* Recompute physical address when crossing a page
+	         boundary. */
+	      for (;;)
+		{
+		  if ((paddr = virt_to_phys_040(addr)))
+		    break;
+		  if (len <= i)
+		    return 0;
+		  len -= i;
+		  addr += PAGE_SIZE;
+		}
+	    }
+	  else
+	    paddr += 16;
+	}
+      break;
+
+    default:
+    case FLUSH_SCOPE_PAGE:
+      len += (addr & ~PAGE_MASK) + (PAGE_SIZE - 1);
+      for (len >>= PAGE_SHIFT; len--; addr += PAGE_SIZE)
+	{
+	  if (!(paddr = virt_to_phys_040(addr)))
+	    continue;
+	  switch (cache)
+	    {
+	    case FLUSH_CACHE_DATA:
+	      __asm__ __volatile__ ("nop\n\t"
+				    ".chip 68040\n\t"
+				    "cpushp %%dc,(%0)\n\t"
+				    ".chip 68k"
+				    : : "a" (paddr));
+	      break;
+	    case FLUSH_CACHE_INSN:
+	      __asm__ __volatile__ ("nop\n\t"
+				    ".chip 68040\n\t"
+				    "cpushp %%ic,(%0)\n\t"
+				    ".chip 68k"
+				    : : "a" (paddr));
+	      break;
+	    default:
+	    case FLUSH_CACHE_BOTH:
+	      __asm__ __volatile__ ("nop\n\t"
+				    ".chip 68040\n\t"
+				    "cpushp %%bc,(%0)\n\t"
+				    ".chip 68k"
+				    : : "a" (paddr));
+	      break;
+	    }
+	}
+      break;
+    }
+  return 0;
+}
+
+#define virt_to_phys_060(vaddr)				\
+({							\
+  unsigned long paddr;					\
+  __asm__ __volatile__ (".chip 68060\n\t"		\
+			"plpar (%0)\n\t"		\
+			".chip 68k"			\
+			: "=a" (paddr)			\
+			: "0" (vaddr));			\
+  (paddr); /* XXX */					\
+})
+
+static inline int
+cache_flush_060 (unsigned long addr, int scope, int cache, unsigned long len)
+{
+  unsigned long paddr, i;
+
+  /*
+   * 68060 manual says:
+   *  cpush %dc : flush DC, remains valid (with our %cacr setup)
+   *  cpush %ic : invalidate IC
+   *  cpush %bc : flush DC + invalidate IC
+   */
+  switch (scope)
+    {
+    case FLUSH_SCOPE_ALL:
+      switch (cache)
+	{
+	case FLUSH_CACHE_DATA:
+	  __asm__ __volatile__ (".chip 68060\n\t"
+				"cpusha %dc\n\t"
+				".chip 68k");
+	  break;
+	case FLUSH_CACHE_INSN:
+	  __asm__ __volatile__ (".chip 68060\n\t"
+				"cpusha %ic\n\t"
+				".chip 68k");
+	  break;
+	default:
+	case FLUSH_CACHE_BOTH:
+	  __asm__ __volatile__ (".chip 68060\n\t"
+				"cpusha %bc\n\t"
+				".chip 68k");
+	  break;
+	}
+      break;
+
+    case FLUSH_SCOPE_LINE:
+      /* Find the physical address of the first mapped page in the
+	 address range.  */
+      len += addr & 15;
+      addr &= -16;
+      if (!(paddr = virt_to_phys_060(addr))) {
+	unsigned long tmp = PAGE_SIZE - (addr & ~PAGE_MASK);
+
+	if (len <= tmp)
+	  return 0;
+	addr += tmp;
+	len -= tmp;
+	tmp = PAGE_SIZE;
+	for (;;)
+	  {
+	    if ((paddr = virt_to_phys_060(addr)))
+	      break;
+	    if (len <= tmp)
+	      return 0;
+	    addr += tmp;
+	    len -= tmp;
+	  }
+      }
+      len = (len + 15) >> 4;
+      i = (PAGE_SIZE - (paddr & ~PAGE_MASK)) >> 4;
+      while (len--)
+	{
+	  switch (cache)
+	    {
+	    case FLUSH_CACHE_DATA:
+	      __asm__ __volatile__ (".chip 68060\n\t"
+				    "cpushl %%dc,(%0)\n\t"
+				    ".chip 68k"
+				    : : "a" (paddr));
+	      break;
+	    case FLUSH_CACHE_INSN:
+	      __asm__ __volatile__ (".chip 68060\n\t"
+				    "cpushl %%ic,(%0)\n\t"
+				    ".chip 68k"
+				    : : "a" (paddr));
+	      break;
+	    default:
+	    case FLUSH_CACHE_BOTH:
+	      __asm__ __volatile__ (".chip 68060\n\t"
+				    "cpushl %%bc,(%0)\n\t"
+				    ".chip 68k"
+				    : : "a" (paddr));
+	      break;
+	    }
+	  if (!--i && len)
+	    {
+
+	      /*
+	       * We just want to jump to the first cache line
+	       * in the next page.
+	       */
+	      addr += PAGE_SIZE;
+	      addr &= PAGE_MASK;
+
+	      i = PAGE_SIZE / 16;
+	      /* Recompute physical address when crossing a page
+	         boundary. */
+	      for (;;)
+	        {
+	          if ((paddr = virt_to_phys_060(addr)))
+	            break;
+	          if (len <= i)
+	            return 0;
+	          len -= i;
+	          addr += PAGE_SIZE;
+	        }
+	    }
+	  else
+	    paddr += 16;
+	}
+      break;
+
+    default:
+    case FLUSH_SCOPE_PAGE:
+      len += (addr & ~PAGE_MASK) + (PAGE_SIZE - 1);
+      addr &= PAGE_MASK;	/* Workaround for bug in some
+				   revisions of the 68060 */
+      for (len >>= PAGE_SHIFT; len--; addr += PAGE_SIZE)
+	{
+	  if (!(paddr = virt_to_phys_060(addr)))
+	    continue;
+	  switch (cache)
+	    {
+	    case FLUSH_CACHE_DATA:
+	      __asm__ __volatile__ (".chip 68060\n\t"
+				    "cpushp %%dc,(%0)\n\t"
+				    ".chip 68k"
+				    : : "a" (paddr));
+	      break;
+	    case FLUSH_CACHE_INSN:
+	      __asm__ __volatile__ (".chip 68060\n\t"
+				    "cpushp %%ic,(%0)\n\t"
+				    ".chip 68k"
+				    : : "a" (paddr));
+	      break;
+	    default:
+	    case FLUSH_CACHE_BOTH:
+	      __asm__ __volatile__ (".chip 68060\n\t"
+				    "cpushp %%bc,(%0)\n\t"
+				    ".chip 68k"
+				    : : "a" (paddr));
+	      break;
+	    }
+	}
+      break;
+    }
+  return 0;
+}
+
+/* sys_cacheflush -- flush (part of) the processor cache.  */
+asmlinkage int
+sys_cacheflush (unsigned long addr, int scope, int cache, unsigned long len)
+{
+	struct vm_area_struct *vma;
+	int ret = -EINVAL;
+
+	if (scope < FLUSH_SCOPE_LINE || scope > FLUSH_SCOPE_ALL ||
+	    cache & ~FLUSH_CACHE_BOTH)
+		goto out;
+
+	if (scope == FLUSH_SCOPE_ALL) {
+		/* Only the superuser may explicitly flush the whole cache. */
+		ret = -EPERM;
+		if (!capable(CAP_SYS_ADMIN))
+			goto out;
+	} else {
+		/*
+		 * Verify that the specified address region actually belongs
+		 * to this process.
+		 */
+		vma = find_vma (current->mm, addr);
+		ret = -EINVAL;
+		/* Check for overflow.  */
+		if (addr + len < addr)
+			goto out;
+		if (vma == NULL || addr < vma->vm_start || addr + len > vma->vm_end)
+			goto out;
+	}
+
+	if (CPU_IS_020_OR_030) {
+		if (scope == FLUSH_SCOPE_LINE && len < 256) {
+			unsigned long cacr;
+			__asm__ ("movec %%cacr, %0" : "=r" (cacr));
+			if (cache & FLUSH_CACHE_INSN)
+				cacr |= 4;
+			if (cache & FLUSH_CACHE_DATA)
+				cacr |= 0x400;
+			len >>= 2;
+			while (len--) {
+				__asm__ __volatile__ ("movec %1, %%caar\n\t"
+						      "movec %0, %%cacr"
+						      : /* no outputs */
+						      : "r" (cacr), "r" (addr));
+				addr += 4;
+			}
+		} else {
+			/* Flush the whole cache, even if page granularity requested. */
+			unsigned long cacr;
+			__asm__ ("movec %%cacr, %0" : "=r" (cacr));
+			if (cache & FLUSH_CACHE_INSN)
+				cacr |= 8;
+			if (cache & FLUSH_CACHE_DATA)
+				cacr |= 0x800;
+			__asm__ __volatile__ ("movec %0, %%cacr" : : "r" (cacr));
+		}
+		ret = 0;
+		goto out;
+	} else {
+	    /*
+	     * 040 or 060: don't blindly trust 'scope', someone could
+	     * try to flush a few megs of memory.
+	     */
+
+	    if (len>=3*PAGE_SIZE && scope<FLUSH_SCOPE_PAGE)
+	        scope=FLUSH_SCOPE_PAGE;
+	    if (len>=10*PAGE_SIZE && scope<FLUSH_SCOPE_ALL)
+	        scope=FLUSH_SCOPE_ALL;
+	    if (CPU_IS_040) {
+		ret = cache_flush_040 (addr, scope, cache, len);
+	    } else if (CPU_IS_060) {
+		ret = cache_flush_060 (addr, scope, cache, len);
+	    }
+	}
+out:
+	return ret;
+}
+
+asmlinkage int sys_getpagesize(void)
+{
+	return PAGE_SIZE;
+}
+
+/*
+ * Do a system call from kernel instead of calling sys_execve so we
+ * end up with proper pt_regs.
+ */
+int kernel_execve(const char *filename,
+		  const char *const argv[],
+		  const char *const envp[])
+{
+	register long __res asm ("%d0") = __NR_execve;
+	register long __a asm ("%d1") = (long)(filename);
+	register long __b asm ("%d2") = (long)(argv);
+	register long __c asm ("%d3") = (long)(envp);
+	asm volatile ("trap  #0" : "+d" (__res)
+			: "d" (__a), "d" (__b), "d" (__c));
+	return __res;
+}
+
+asmlinkage unsigned long sys_get_thread_area(void)
+{
+	return current_thread_info()->tp_value;
+}
+
+asmlinkage int sys_set_thread_area(unsigned long tp)
+{
+	current_thread_info()->tp_value = tp;
+	return 0;
+}
+
+/* This syscall gets its arguments in A0 (mem), D2 (oldval) and
+   D1 (newval).  */
+asmlinkage int
+sys_atomic_cmpxchg_32(unsigned long newval, int oldval, int d3, int d4, int d5,
+		      unsigned long __user * mem)
+{
+	/* This was borrowed from ARM's implementation.  */
+	for (;;) {
+		struct mm_struct *mm = current->mm;
+		pgd_t *pgd;
+		pmd_t *pmd;
+		pte_t *pte;
+		spinlock_t *ptl;
+		unsigned long mem_value;
+
+		down_read(&mm->mmap_sem);
+		pgd = pgd_offset(mm, (unsigned long)mem);
+		if (!pgd_present(*pgd))
+			goto bad_access;
+		pmd = pmd_offset(pgd, (unsigned long)mem);
+		if (!pmd_present(*pmd))
+			goto bad_access;
+		pte = pte_offset_map_lock(mm, pmd, (unsigned long)mem, &ptl);
+		if (!pte_present(*pte) || !pte_dirty(*pte)
+		    || !pte_write(*pte)) {
+			pte_unmap_unlock(pte, ptl);
+			goto bad_access;
+		}
+
+		mem_value = *mem;
+		if (mem_value == oldval)
+			*mem = newval;
+
+		pte_unmap_unlock(pte, ptl);
+		up_read(&mm->mmap_sem);
+		return mem_value;
+
+	      bad_access:
+		up_read(&mm->mmap_sem);
+		/* This is not necessarily a bad access, we can get here if
+		   a memory we're trying to write to should be copied-on-write.
+		   Make the kernel do the necessary page stuff, then re-iterate.
+		   Simulate a write access fault to do that.  */
+		{
+			/* The first argument of the function corresponds to
+			   D1, which is the first field of struct pt_regs.  */
+			struct pt_regs *fp = (struct pt_regs *)&newval;
+
+			/* '3' is an RMW flag.  */
+			if (do_page_fault(fp, (unsigned long)mem, 3))
+				/* If the do_page_fault() failed, we don't
+				   have anything meaningful to return.
+				   There should be a SIGSEGV pending for
+				   the process.  */
+				return 0xdeadbeef;
+		}
+	}
+}
+
+asmlinkage int sys_atomic_barrier(void)
+{
+	/* no code needed for uniprocs */
+	return 0;
+}
diff --git a/arch/m68knommu/kernel/sys_m68k.c b/arch/m68k/kernel/sys_m68k_no.c
index 68488ae47f0a..68488ae47f0a 100644
--- a/arch/m68knommu/kernel/sys_m68k.c
+++ b/arch/m68k/kernel/sys_m68k_no.c
diff --git a/arch/m68knommu/kernel/syscalltable.S b/arch/m68k/kernel/syscalltable.S
index 79b1ed198c07..79b1ed198c07 100644
--- a/arch/m68knommu/kernel/syscalltable.S
+++ b/arch/m68k/kernel/syscalltable.S
diff --git a/arch/m68k/kernel/time.c b/arch/m68k/kernel/time.c
index 18b34ee5db3b..a5cf40c26de5 100644
--- a/arch/m68k/kernel/time.c
+++ b/arch/m68k/kernel/time.c
@@ -1,114 +1,5 @@
-/*
- *  linux/arch/m68k/kernel/time.c
- *
- *  Copyright (C) 1991, 1992, 1995  Linus Torvalds
- *
- * This file contains the m68k-specific time handling details.
- * Most of the stuff is located in the machine specific files.
- *
- * 1997-09-10	Updated NTP code according to technical memorandum Jan '96
- *		"A Kernel Model for Precision Timekeeping" by Dave Mills
- */
-
-#include <linux/errno.h>
-#include <linux/module.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/param.h>
-#include <linux/string.h>
-#include <linux/mm.h>
-#include <linux/rtc.h>
-#include <linux/platform_device.h>
-
-#include <asm/machdep.h>
-#include <asm/io.h>
-#include <asm/irq_regs.h>
-
-#include <linux/time.h>
-#include <linux/timex.h>
-#include <linux/profile.h>
-
-static inline int set_rtc_mmss(unsigned long nowtime)
-{
-  if (mach_set_clock_mmss)
-    return mach_set_clock_mmss (nowtime);
-  return -1;
-}
-
-/*
- * timer_interrupt() needs to keep up the real-time clock,
- * as well as call the "xtime_update()" routine every clocktick
- */
-static irqreturn_t timer_interrupt(int irq, void *dummy)
-{
-	xtime_update(1);
-	update_process_times(user_mode(get_irq_regs()));
-	profile_tick(CPU_PROFILING);
-
-#ifdef CONFIG_HEARTBEAT
-	/* use power LED as a heartbeat instead -- much more useful
-	   for debugging -- based on the version for PReP by Cort */
-	/* acts like an actual heart beat -- ie thump-thump-pause... */
-	if (mach_heartbeat) {
-	    static unsigned cnt = 0, period = 0, dist = 0;
-
-	    if (cnt == 0 || cnt == dist)
-		mach_heartbeat( 1 );
-	    else if (cnt == 7 || cnt == dist+7)
-		mach_heartbeat( 0 );
-
-	    if (++cnt > period) {
-		cnt = 0;
-		/* The hyperbolic function below modifies the heartbeat period
-		 * length in dependency of the current (5min) load. It goes
-		 * through the points f(0)=126, f(1)=86, f(5)=51,
-		 * f(inf)->30. */
-		period = ((672<<FSHIFT)/(5*avenrun[0]+(7<<FSHIFT))) + 30;
-		dist = period / 4;
-	    }
-	}
-#endif /* CONFIG_HEARTBEAT */
-	return IRQ_HANDLED;
-}
-
-void read_persistent_clock(struct timespec *ts)
-{
-	struct rtc_time time;
-	ts->tv_sec = 0;
-	ts->tv_nsec = 0;
-
-	if (mach_hwclk) {
-		mach_hwclk(0, &time);
-
-		if ((time.tm_year += 1900) < 1970)
-			time.tm_year += 100;
-		ts->tv_sec = mktime(time.tm_year, time.tm_mon, time.tm_mday,
-				      time.tm_hour, time.tm_min, time.tm_sec);
-	}
-}
-
-void __init time_init(void)
-{
-	mach_sched_init(timer_interrupt);
-}
-
-u32 arch_gettimeoffset(void)
-{
-	return mach_gettimeoffset() * 1000;
-}
-
-static int __init rtc_init(void)
-{
-	struct platform_device *pdev;
-
-	if (!mach_hwclk)
-		return -ENODEV;
-
-	pdev = platform_device_register_simple("rtc-generic", -1, NULL, 0);
-	if (IS_ERR(pdev))
-		return PTR_ERR(pdev);
-
-	return 0;
-}
-
-module_init(rtc_init);
+#ifdef CONFIG_MMU
+#include "time_mm.c"
+#else
+#include "time_no.c"
+#endif
diff --git a/arch/m68k/kernel/time_mm.c b/arch/m68k/kernel/time_mm.c
new file mode 100644
index 000000000000..18b34ee5db3b
--- /dev/null
+++ b/arch/m68k/kernel/time_mm.c
@@ -0,0 +1,114 @@
+/*
+ *  linux/arch/m68k/kernel/time.c
+ *
+ *  Copyright (C) 1991, 1992, 1995  Linus Torvalds
+ *
+ * This file contains the m68k-specific time handling details.
+ * Most of the stuff is located in the machine specific files.
+ *
+ * 1997-09-10	Updated NTP code according to technical memorandum Jan '96
+ *		"A Kernel Model for Precision Timekeeping" by Dave Mills
+ */
+
+#include <linux/errno.h>
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/param.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/rtc.h>
+#include <linux/platform_device.h>
+
+#include <asm/machdep.h>
+#include <asm/io.h>
+#include <asm/irq_regs.h>
+
+#include <linux/time.h>
+#include <linux/timex.h>
+#include <linux/profile.h>
+
+static inline int set_rtc_mmss(unsigned long nowtime)
+{
+  if (mach_set_clock_mmss)
+    return mach_set_clock_mmss (nowtime);
+  return -1;
+}
+
+/*
+ * timer_interrupt() needs to keep up the real-time clock,
+ * as well as call the "xtime_update()" routine every clocktick
+ */
+static irqreturn_t timer_interrupt(int irq, void *dummy)
+{
+	xtime_update(1);
+	update_process_times(user_mode(get_irq_regs()));
+	profile_tick(CPU_PROFILING);
+
+#ifdef CONFIG_HEARTBEAT
+	/* use power LED as a heartbeat instead -- much more useful
+	   for debugging -- based on the version for PReP by Cort */
+	/* acts like an actual heart beat -- ie thump-thump-pause... */
+	if (mach_heartbeat) {
+	    static unsigned cnt = 0, period = 0, dist = 0;
+
+	    if (cnt == 0 || cnt == dist)
+		mach_heartbeat( 1 );
+	    else if (cnt == 7 || cnt == dist+7)
+		mach_heartbeat( 0 );
+
+	    if (++cnt > period) {
+		cnt = 0;
+		/* The hyperbolic function below modifies the heartbeat period
+		 * length in dependency of the current (5min) load. It goes
+		 * through the points f(0)=126, f(1)=86, f(5)=51,
+		 * f(inf)->30. */
+		period = ((672<<FSHIFT)/(5*avenrun[0]+(7<<FSHIFT))) + 30;
+		dist = period / 4;
+	    }
+	}
+#endif /* CONFIG_HEARTBEAT */
+	return IRQ_HANDLED;
+}
+
+void read_persistent_clock(struct timespec *ts)
+{
+	struct rtc_time time;
+	ts->tv_sec = 0;
+	ts->tv_nsec = 0;
+
+	if (mach_hwclk) {
+		mach_hwclk(0, &time);
+
+		if ((time.tm_year += 1900) < 1970)
+			time.tm_year += 100;
+		ts->tv_sec = mktime(time.tm_year, time.tm_mon, time.tm_mday,
+				      time.tm_hour, time.tm_min, time.tm_sec);
+	}
+}
+
+void __init time_init(void)
+{
+	mach_sched_init(timer_interrupt);
+}
+
+u32 arch_gettimeoffset(void)
+{
+	return mach_gettimeoffset() * 1000;
+}
+
+static int __init rtc_init(void)
+{
+	struct platform_device *pdev;
+
+	if (!mach_hwclk)
+		return -ENODEV;
+
+	pdev = platform_device_register_simple("rtc-generic", -1, NULL, 0);
+	if (IS_ERR(pdev))
+		return PTR_ERR(pdev);
+
+	return 0;
+}
+
+module_init(rtc_init);
diff --git a/arch/m68knommu/kernel/time.c b/arch/m68k/kernel/time_no.c
index 6623909f70e6..6623909f70e6 100644
--- a/arch/m68knommu/kernel/time.c
+++ b/arch/m68k/kernel/time_no.c
diff --git a/arch/m68k/kernel/traps.c b/arch/m68k/kernel/traps.c
index 4022bbc28878..c98add3f5f0f 100644
--- a/arch/m68k/kernel/traps.c
+++ b/arch/m68k/kernel/traps.c
@@ -1,1207 +1,5 @@
-/*
- *  linux/arch/m68k/kernel/traps.c
- *
- *  Copyright (C) 1993, 1994 by Hamish Macdonald
- *
- *  68040 fixes by Michael Rausch
- *  68040 fixes by Martin Apel
- *  68040 fixes and writeback by Richard Zidlicky
- *  68060 fixes by Roman Hodek
- *  68060 fixes by Jesper Skov
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file COPYING in the main directory of this archive
- * for more details.
- */
-
-/*
- * Sets up all exception vectors
- */
-
-#include <linux/sched.h>
-#include <linux/signal.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/module.h>
-#include <linux/user.h>
-#include <linux/string.h>
-#include <linux/linkage.h>
-#include <linux/init.h>
-#include <linux/ptrace.h>
-#include <linux/kallsyms.h>
-
-#include <asm/setup.h>
-#include <asm/fpu.h>
-#include <asm/system.h>
-#include <asm/uaccess.h>
-#include <asm/traps.h>
-#include <asm/pgalloc.h>
-#include <asm/machdep.h>
-#include <asm/siginfo.h>
-
-/* assembler routines */
-asmlinkage void system_call(void);
-asmlinkage void buserr(void);
-asmlinkage void trap(void);
-asmlinkage void nmihandler(void);
-#ifdef CONFIG_M68KFPU_EMU
-asmlinkage void fpu_emu(void);
-#endif
-
-e_vector vectors[256];
-
-/* nmi handler for the Amiga */
-asm(".text\n"
-    __ALIGN_STR "\n"
-    "nmihandler: rte");
-
-/*
- * this must be called very early as the kernel might
- * use some instruction that are emulated on the 060
- * and so we're prepared for early probe attempts (e.g. nf_init).
- */
-void __init base_trap_init(void)
-{
-	if (MACH_IS_SUN3X) {
-		extern e_vector *sun3x_prom_vbr;
-
-		__asm__ volatile ("movec %%vbr, %0" : "=r" (sun3x_prom_vbr));
-	}
-
-	/* setup the exception vector table */
-	__asm__ volatile ("movec %0,%%vbr" : : "r" ((void*)vectors));
-
-	if (CPU_IS_060) {
-		/* set up ISP entry points */
-		asmlinkage void unimp_vec(void) asm ("_060_isp_unimp");
-
-		vectors[VEC_UNIMPII] = unimp_vec;
-	}
-
-	vectors[VEC_BUSERR] = buserr;
-	vectors[VEC_ILLEGAL] = trap;
-	vectors[VEC_SYS] = system_call;
-}
-
-void __init trap_init (void)
-{
-	int i;
-
-	for (i = VEC_SPUR; i <= VEC_INT7; i++)
-		vectors[i] = bad_inthandler;
-
-	for (i = 0; i < VEC_USER; i++)
-		if (!vectors[i])
-			vectors[i] = trap;
-
-	for (i = VEC_USER; i < 256; i++)
-		vectors[i] = bad_inthandler;
-
-#ifdef CONFIG_M68KFPU_EMU
-	if (FPU_IS_EMU)
-		vectors[VEC_LINE11] = fpu_emu;
-#endif
-
-	if (CPU_IS_040 && !FPU_IS_EMU) {
-		/* set up FPSP entry points */
-		asmlinkage void dz_vec(void) asm ("dz");
-		asmlinkage void inex_vec(void) asm ("inex");
-		asmlinkage void ovfl_vec(void) asm ("ovfl");
-		asmlinkage void unfl_vec(void) asm ("unfl");
-		asmlinkage void snan_vec(void) asm ("snan");
-		asmlinkage void operr_vec(void) asm ("operr");
-		asmlinkage void bsun_vec(void) asm ("bsun");
-		asmlinkage void fline_vec(void) asm ("fline");
-		asmlinkage void unsupp_vec(void) asm ("unsupp");
-
-		vectors[VEC_FPDIVZ] = dz_vec;
-		vectors[VEC_FPIR] = inex_vec;
-		vectors[VEC_FPOVER] = ovfl_vec;
-		vectors[VEC_FPUNDER] = unfl_vec;
-		vectors[VEC_FPNAN] = snan_vec;
-		vectors[VEC_FPOE] = operr_vec;
-		vectors[VEC_FPBRUC] = bsun_vec;
-		vectors[VEC_LINE11] = fline_vec;
-		vectors[VEC_FPUNSUP] = unsupp_vec;
-	}
-
-	if (CPU_IS_060 && !FPU_IS_EMU) {
-		/* set up IFPSP entry points */
-		asmlinkage void snan_vec6(void) asm ("_060_fpsp_snan");
-		asmlinkage void operr_vec6(void) asm ("_060_fpsp_operr");
-		asmlinkage void ovfl_vec6(void) asm ("_060_fpsp_ovfl");
-		asmlinkage void unfl_vec6(void) asm ("_060_fpsp_unfl");
-		asmlinkage void dz_vec6(void) asm ("_060_fpsp_dz");
-		asmlinkage void inex_vec6(void) asm ("_060_fpsp_inex");
-		asmlinkage void fline_vec6(void) asm ("_060_fpsp_fline");
-		asmlinkage void unsupp_vec6(void) asm ("_060_fpsp_unsupp");
-		asmlinkage void effadd_vec6(void) asm ("_060_fpsp_effadd");
-
-		vectors[VEC_FPNAN] = snan_vec6;
-		vectors[VEC_FPOE] = operr_vec6;
-		vectors[VEC_FPOVER] = ovfl_vec6;
-		vectors[VEC_FPUNDER] = unfl_vec6;
-		vectors[VEC_FPDIVZ] = dz_vec6;
-		vectors[VEC_FPIR] = inex_vec6;
-		vectors[VEC_LINE11] = fline_vec6;
-		vectors[VEC_FPUNSUP] = unsupp_vec6;
-		vectors[VEC_UNIMPEA] = effadd_vec6;
-	}
-
-        /* if running on an amiga, make the NMI interrupt do nothing */
-	if (MACH_IS_AMIGA) {
-		vectors[VEC_INT7] = nmihandler;
-	}
-}
-
-
-static const char *vec_names[] = {
-	[VEC_RESETSP]	= "RESET SP",
-	[VEC_RESETPC]	= "RESET PC",
-	[VEC_BUSERR]	= "BUS ERROR",
-	[VEC_ADDRERR]	= "ADDRESS ERROR",
-	[VEC_ILLEGAL]	= "ILLEGAL INSTRUCTION",
-	[VEC_ZERODIV]	= "ZERO DIVIDE",
-	[VEC_CHK]	= "CHK",
-	[VEC_TRAP]	= "TRAPcc",
-	[VEC_PRIV]	= "PRIVILEGE VIOLATION",
-	[VEC_TRACE]	= "TRACE",
-	[VEC_LINE10]	= "LINE 1010",
-	[VEC_LINE11]	= "LINE 1111",
-	[VEC_RESV12]	= "UNASSIGNED RESERVED 12",
-	[VEC_COPROC]	= "COPROCESSOR PROTOCOL VIOLATION",
-	[VEC_FORMAT]	= "FORMAT ERROR",
-	[VEC_UNINT]	= "UNINITIALIZED INTERRUPT",
-	[VEC_RESV16]	= "UNASSIGNED RESERVED 16",
-	[VEC_RESV17]	= "UNASSIGNED RESERVED 17",
-	[VEC_RESV18]	= "UNASSIGNED RESERVED 18",
-	[VEC_RESV19]	= "UNASSIGNED RESERVED 19",
-	[VEC_RESV20]	= "UNASSIGNED RESERVED 20",
-	[VEC_RESV21]	= "UNASSIGNED RESERVED 21",
-	[VEC_RESV22]	= "UNASSIGNED RESERVED 22",
-	[VEC_RESV23]	= "UNASSIGNED RESERVED 23",
-	[VEC_SPUR]	= "SPURIOUS INTERRUPT",
-	[VEC_INT1]	= "LEVEL 1 INT",
-	[VEC_INT2]	= "LEVEL 2 INT",
-	[VEC_INT3]	= "LEVEL 3 INT",
-	[VEC_INT4]	= "LEVEL 4 INT",
-	[VEC_INT5]	= "LEVEL 5 INT",
-	[VEC_INT6]	= "LEVEL 6 INT",
-	[VEC_INT7]	= "LEVEL 7 INT",
-	[VEC_SYS]	= "SYSCALL",
-	[VEC_TRAP1]	= "TRAP #1",
-	[VEC_TRAP2]	= "TRAP #2",
-	[VEC_TRAP3]	= "TRAP #3",
-	[VEC_TRAP4]	= "TRAP #4",
-	[VEC_TRAP5]	= "TRAP #5",
-	[VEC_TRAP6]	= "TRAP #6",
-	[VEC_TRAP7]	= "TRAP #7",
-	[VEC_TRAP8]	= "TRAP #8",
-	[VEC_TRAP9]	= "TRAP #9",
-	[VEC_TRAP10]	= "TRAP #10",
-	[VEC_TRAP11]	= "TRAP #11",
-	[VEC_TRAP12]	= "TRAP #12",
-	[VEC_TRAP13]	= "TRAP #13",
-	[VEC_TRAP14]	= "TRAP #14",
-	[VEC_TRAP15]	= "TRAP #15",
-	[VEC_FPBRUC]	= "FPCP BSUN",
-	[VEC_FPIR]	= "FPCP INEXACT",
-	[VEC_FPDIVZ]	= "FPCP DIV BY 0",
-	[VEC_FPUNDER]	= "FPCP UNDERFLOW",
-	[VEC_FPOE]	= "FPCP OPERAND ERROR",
-	[VEC_FPOVER]	= "FPCP OVERFLOW",
-	[VEC_FPNAN]	= "FPCP SNAN",
-	[VEC_FPUNSUP]	= "FPCP UNSUPPORTED OPERATION",
-	[VEC_MMUCFG]	= "MMU CONFIGURATION ERROR",
-	[VEC_MMUILL]	= "MMU ILLEGAL OPERATION ERROR",
-	[VEC_MMUACC]	= "MMU ACCESS LEVEL VIOLATION ERROR",
-	[VEC_RESV59]	= "UNASSIGNED RESERVED 59",
-	[VEC_UNIMPEA]	= "UNASSIGNED RESERVED 60",
-	[VEC_UNIMPII]	= "UNASSIGNED RESERVED 61",
-	[VEC_RESV62]	= "UNASSIGNED RESERVED 62",
-	[VEC_RESV63]	= "UNASSIGNED RESERVED 63",
-};
-
-static const char *space_names[] = {
-	[0]		= "Space 0",
-	[USER_DATA]	= "User Data",
-	[USER_PROGRAM]	= "User Program",
-#ifndef CONFIG_SUN3
-	[3]		= "Space 3",
+#ifdef CONFIG_MMU
+#include "traps_mm.c"
 #else
-	[FC_CONTROL]	= "Control",
-#endif
-	[4]		= "Space 4",
-	[SUPER_DATA]	= "Super Data",
-	[SUPER_PROGRAM]	= "Super Program",
-	[CPU_SPACE]	= "CPU"
-};
-
-void die_if_kernel(char *,struct pt_regs *,int);
-asmlinkage int do_page_fault(struct pt_regs *regs, unsigned long address,
-                             unsigned long error_code);
-int send_fault_sig(struct pt_regs *regs);
-
-asmlinkage void trap_c(struct frame *fp);
-
-#if defined (CONFIG_M68060)
-static inline void access_error060 (struct frame *fp)
-{
-	unsigned long fslw = fp->un.fmt4.pc; /* is really FSLW for access error */
-
-#ifdef DEBUG
-	printk("fslw=%#lx, fa=%#lx\n", fslw, fp->un.fmt4.effaddr);
-#endif
-
-	if (fslw & MMU060_BPE) {
-		/* branch prediction error -> clear branch cache */
-		__asm__ __volatile__ ("movec %/cacr,%/d0\n\t"
-				      "orl   #0x00400000,%/d0\n\t"
-				      "movec %/d0,%/cacr"
-				      : : : "d0" );
-		/* return if there's no other error */
-		if (!(fslw & MMU060_ERR_BITS) && !(fslw & MMU060_SEE))
-			return;
-	}
-
-	if (fslw & (MMU060_DESC_ERR | MMU060_WP | MMU060_SP)) {
-		unsigned long errorcode;
-		unsigned long addr = fp->un.fmt4.effaddr;
-
-		if (fslw & MMU060_MA)
-			addr = (addr + PAGE_SIZE - 1) & PAGE_MASK;
-
-		errorcode = 1;
-		if (fslw & MMU060_DESC_ERR) {
-			__flush_tlb040_one(addr);
-			errorcode = 0;
-		}
-		if (fslw & MMU060_W)
-			errorcode |= 2;
-#ifdef DEBUG
-		printk("errorcode = %d\n", errorcode );
-#endif
-		do_page_fault(&fp->ptregs, addr, errorcode);
-	} else if (fslw & (MMU060_SEE)){
-		/* Software Emulation Error.
-		 * fault during mem_read/mem_write in ifpsp060/os.S
-		 */
-		send_fault_sig(&fp->ptregs);
-	} else if (!(fslw & (MMU060_RE|MMU060_WE)) ||
-		   send_fault_sig(&fp->ptregs) > 0) {
-		printk("pc=%#lx, fa=%#lx\n", fp->ptregs.pc, fp->un.fmt4.effaddr);
-		printk( "68060 access error, fslw=%lx\n", fslw );
-		trap_c( fp );
-	}
-}
-#endif /* CONFIG_M68060 */
-
-#if defined (CONFIG_M68040)
-static inline unsigned long probe040(int iswrite, unsigned long addr, int wbs)
-{
-	unsigned long mmusr;
-	mm_segment_t old_fs = get_fs();
-
-	set_fs(MAKE_MM_SEG(wbs));
-
-	if (iswrite)
-		asm volatile (".chip 68040; ptestw (%0); .chip 68k" : : "a" (addr));
-	else
-		asm volatile (".chip 68040; ptestr (%0); .chip 68k" : : "a" (addr));
-
-	asm volatile (".chip 68040; movec %%mmusr,%0; .chip 68k" : "=r" (mmusr));
-
-	set_fs(old_fs);
-
-	return mmusr;
-}
-
-static inline int do_040writeback1(unsigned short wbs, unsigned long wba,
-				   unsigned long wbd)
-{
-	int res = 0;
-	mm_segment_t old_fs = get_fs();
-
-	/* set_fs can not be moved, otherwise put_user() may oops */
-	set_fs(MAKE_MM_SEG(wbs));
-
-	switch (wbs & WBSIZ_040) {
-	case BA_SIZE_BYTE:
-		res = put_user(wbd & 0xff, (char __user *)wba);
-		break;
-	case BA_SIZE_WORD:
-		res = put_user(wbd & 0xffff, (short __user *)wba);
-		break;
-	case BA_SIZE_LONG:
-		res = put_user(wbd, (int __user *)wba);
-		break;
-	}
-
-	/* set_fs can not be moved, otherwise put_user() may oops */
-	set_fs(old_fs);
-
-
-#ifdef DEBUG
-	printk("do_040writeback1, res=%d\n",res);
-#endif
-
-	return res;
-}
-
-/* after an exception in a writeback the stack frame corresponding
- * to that exception is discarded, set a few bits in the old frame
- * to simulate what it should look like
- */
-static inline void fix_xframe040(struct frame *fp, unsigned long wba, unsigned short wbs)
-{
-	fp->un.fmt7.faddr = wba;
-	fp->un.fmt7.ssw = wbs & 0xff;
-	if (wba != current->thread.faddr)
-	    fp->un.fmt7.ssw |= MA_040;
-}
-
-static inline void do_040writebacks(struct frame *fp)
-{
-	int res = 0;
-#if 0
-	if (fp->un.fmt7.wb1s & WBV_040)
-		printk("access_error040: cannot handle 1st writeback. oops.\n");
-#endif
-
-	if ((fp->un.fmt7.wb2s & WBV_040) &&
-	    !(fp->un.fmt7.wb2s & WBTT_040)) {
-		res = do_040writeback1(fp->un.fmt7.wb2s, fp->un.fmt7.wb2a,
-				       fp->un.fmt7.wb2d);
-		if (res)
-			fix_xframe040(fp, fp->un.fmt7.wb2a, fp->un.fmt7.wb2s);
-		else
-			fp->un.fmt7.wb2s = 0;
-	}
-
-	/* do the 2nd wb only if the first one was successful (except for a kernel wb) */
-	if (fp->un.fmt7.wb3s & WBV_040 && (!res || fp->un.fmt7.wb3s & 4)) {
-		res = do_040writeback1(fp->un.fmt7.wb3s, fp->un.fmt7.wb3a,
-				       fp->un.fmt7.wb3d);
-		if (res)
-		    {
-			fix_xframe040(fp, fp->un.fmt7.wb3a, fp->un.fmt7.wb3s);
-
-			fp->un.fmt7.wb2s = fp->un.fmt7.wb3s;
-			fp->un.fmt7.wb3s &= (~WBV_040);
-			fp->un.fmt7.wb2a = fp->un.fmt7.wb3a;
-			fp->un.fmt7.wb2d = fp->un.fmt7.wb3d;
-		    }
-		else
-			fp->un.fmt7.wb3s = 0;
-	}
-
-	if (res)
-		send_fault_sig(&fp->ptregs);
-}
-
-/*
- * called from sigreturn(), must ensure userspace code didn't
- * manipulate exception frame to circumvent protection, then complete
- * pending writebacks
- * we just clear TM2 to turn it into a userspace access
- */
-asmlinkage void berr_040cleanup(struct frame *fp)
-{
-	fp->un.fmt7.wb2s &= ~4;
-	fp->un.fmt7.wb3s &= ~4;
-
-	do_040writebacks(fp);
-}
-
-static inline void access_error040(struct frame *fp)
-{
-	unsigned short ssw = fp->un.fmt7.ssw;
-	unsigned long mmusr;
-
-#ifdef DEBUG
-	printk("ssw=%#x, fa=%#lx\n", ssw, fp->un.fmt7.faddr);
-        printk("wb1s=%#x, wb2s=%#x, wb3s=%#x\n", fp->un.fmt7.wb1s,
-		fp->un.fmt7.wb2s, fp->un.fmt7.wb3s);
-	printk ("wb2a=%lx, wb3a=%lx, wb2d=%lx, wb3d=%lx\n",
-		fp->un.fmt7.wb2a, fp->un.fmt7.wb3a,
-		fp->un.fmt7.wb2d, fp->un.fmt7.wb3d);
-#endif
-
-	if (ssw & ATC_040) {
-		unsigned long addr = fp->un.fmt7.faddr;
-		unsigned long errorcode;
-
-		/*
-		 * The MMU status has to be determined AFTER the address
-		 * has been corrected if there was a misaligned access (MA).
-		 */
-		if (ssw & MA_040)
-			addr = (addr + 7) & -8;
-
-		/* MMU error, get the MMUSR info for this access */
-		mmusr = probe040(!(ssw & RW_040), addr, ssw);
-#ifdef DEBUG
-		printk("mmusr = %lx\n", mmusr);
-#endif
-		errorcode = 1;
-		if (!(mmusr & MMU_R_040)) {
-			/* clear the invalid atc entry */
-			__flush_tlb040_one(addr);
-			errorcode = 0;
-		}
-
-		/* despite what documentation seems to say, RMW
-		 * accesses have always both the LK and RW bits set */
-		if (!(ssw & RW_040) || (ssw & LK_040))
-			errorcode |= 2;
-
-		if (do_page_fault(&fp->ptregs, addr, errorcode)) {
-#ifdef DEBUG
-			printk("do_page_fault() !=0\n");
-#endif
-			if (user_mode(&fp->ptregs)){
-				/* delay writebacks after signal delivery */
-#ifdef DEBUG
-			        printk(".. was usermode - return\n");
-#endif
-				return;
-			}
-			/* disable writeback into user space from kernel
-			 * (if do_page_fault didn't fix the mapping,
-                         * the writeback won't do good)
-			 */
-disable_wb:
-#ifdef DEBUG
-			printk(".. disabling wb2\n");
-#endif
-			if (fp->un.fmt7.wb2a == fp->un.fmt7.faddr)
-				fp->un.fmt7.wb2s &= ~WBV_040;
-			if (fp->un.fmt7.wb3a == fp->un.fmt7.faddr)
-				fp->un.fmt7.wb3s &= ~WBV_040;
-		}
-	} else {
-		/* In case of a bus error we either kill the process or expect
-		 * the kernel to catch the fault, which then is also responsible
-		 * for cleaning up the mess.
-		 */
-		current->thread.signo = SIGBUS;
-		current->thread.faddr = fp->un.fmt7.faddr;
-		if (send_fault_sig(&fp->ptregs) >= 0)
-			printk("68040 bus error (ssw=%x, faddr=%lx)\n", ssw,
-			       fp->un.fmt7.faddr);
-		goto disable_wb;
-	}
-
-	do_040writebacks(fp);
-}
-#endif /* CONFIG_M68040 */
-
-#if defined(CONFIG_SUN3)
-#include <asm/sun3mmu.h>
-
-extern int mmu_emu_handle_fault (unsigned long, int, int);
-
-/* sun3 version of bus_error030 */
-
-static inline void bus_error030 (struct frame *fp)
-{
-	unsigned char buserr_type = sun3_get_buserr ();
-	unsigned long addr, errorcode;
-	unsigned short ssw = fp->un.fmtb.ssw;
-	extern unsigned long _sun3_map_test_start, _sun3_map_test_end;
-
-#ifdef DEBUG
-	if (ssw & (FC | FB))
-		printk ("Instruction fault at %#010lx\n",
-			ssw & FC ?
-			fp->ptregs.format == 0xa ? fp->ptregs.pc + 2 : fp->un.fmtb.baddr - 2
-			:
-			fp->ptregs.format == 0xa ? fp->ptregs.pc + 4 : fp->un.fmtb.baddr);
-	if (ssw & DF)
-		printk ("Data %s fault at %#010lx in %s (pc=%#lx)\n",
-			ssw & RW ? "read" : "write",
-			fp->un.fmtb.daddr,
-			space_names[ssw & DFC], fp->ptregs.pc);
-#endif
-
-	/*
-	 * Check if this page should be demand-mapped. This needs to go before
-	 * the testing for a bad kernel-space access (demand-mapping applies
-	 * to kernel accesses too).
-	 */
-
-	if ((ssw & DF)
-	    && (buserr_type & (SUN3_BUSERR_PROTERR | SUN3_BUSERR_INVALID))) {
-		if (mmu_emu_handle_fault (fp->un.fmtb.daddr, ssw & RW, 0))
-			return;
-	}
-
-	/* Check for kernel-space pagefault (BAD). */
-	if (fp->ptregs.sr & PS_S) {
-		/* kernel fault must be a data fault to user space */
-		if (! ((ssw & DF) && ((ssw & DFC) == USER_DATA))) {
-		     // try checking the kernel mappings before surrender
-		     if (mmu_emu_handle_fault (fp->un.fmtb.daddr, ssw & RW, 1))
-			  return;
-			/* instruction fault or kernel data fault! */
-			if (ssw & (FC | FB))
-				printk ("Instruction fault at %#010lx\n",
-					fp->ptregs.pc);
-			if (ssw & DF) {
-				/* was this fault incurred testing bus mappings? */
-				if((fp->ptregs.pc >= (unsigned long)&_sun3_map_test_start) &&
-				   (fp->ptregs.pc <= (unsigned long)&_sun3_map_test_end)) {
-					send_fault_sig(&fp->ptregs);
-					return;
-				}
-
-				printk ("Data %s fault at %#010lx in %s (pc=%#lx)\n",
-					ssw & RW ? "read" : "write",
-					fp->un.fmtb.daddr,
-					space_names[ssw & DFC], fp->ptregs.pc);
-			}
-			printk ("BAD KERNEL BUSERR\n");
-
-			die_if_kernel("Oops", &fp->ptregs,0);
-			force_sig(SIGKILL, current);
-			return;
-		}
-	} else {
-		/* user fault */
-		if (!(ssw & (FC | FB)) && !(ssw & DF))
-			/* not an instruction fault or data fault! BAD */
-			panic ("USER BUSERR w/o instruction or data fault");
-	}
-
-
-	/* First handle the data fault, if any.  */
-	if (ssw & DF) {
-		addr = fp->un.fmtb.daddr;
-
-// errorcode bit 0:	0 -> no page		1 -> protection fault
-// errorcode bit 1:	0 -> read fault		1 -> write fault
-
-// (buserr_type & SUN3_BUSERR_PROTERR)	-> protection fault
-// (buserr_type & SUN3_BUSERR_INVALID)	-> invalid page fault
-
-		if (buserr_type & SUN3_BUSERR_PROTERR)
-			errorcode = 0x01;
-		else if (buserr_type & SUN3_BUSERR_INVALID)
-			errorcode = 0x00;
-		else {
-#ifdef DEBUG
-			printk ("*** unexpected busfault type=%#04x\n", buserr_type);
-			printk ("invalid %s access at %#lx from pc %#lx\n",
-				!(ssw & RW) ? "write" : "read", addr,
-				fp->ptregs.pc);
-#endif
-			die_if_kernel ("Oops", &fp->ptregs, buserr_type);
-			force_sig (SIGBUS, current);
-			return;
-		}
-
-//todo: wtf is RM bit? --m
-		if (!(ssw & RW) || ssw & RM)
-			errorcode |= 0x02;
-
-		/* Handle page fault. */
-		do_page_fault (&fp->ptregs, addr, errorcode);
-
-		/* Retry the data fault now. */
-		return;
-	}
-
-	/* Now handle the instruction fault. */
-
-	/* Get the fault address. */
-	if (fp->ptregs.format == 0xA)
-		addr = fp->ptregs.pc + 4;
-	else
-		addr = fp->un.fmtb.baddr;
-	if (ssw & FC)
-		addr -= 2;
-
-	if (buserr_type & SUN3_BUSERR_INVALID) {
-		if (!mmu_emu_handle_fault (fp->un.fmtb.daddr, 1, 0))
-			do_page_fault (&fp->ptregs, addr, 0);
-       } else {
-#ifdef DEBUG
-		printk ("protection fault on insn access (segv).\n");
-#endif
-		force_sig (SIGSEGV, current);
-       }
-}
-#else
-#if defined(CPU_M68020_OR_M68030)
-static inline void bus_error030 (struct frame *fp)
-{
-	volatile unsigned short temp;
-	unsigned short mmusr;
-	unsigned long addr, errorcode;
-	unsigned short ssw = fp->un.fmtb.ssw;
-#ifdef DEBUG
-	unsigned long desc;
-
-	printk ("pid = %x  ", current->pid);
-	printk ("SSW=%#06x  ", ssw);
-
-	if (ssw & (FC | FB))
-		printk ("Instruction fault at %#010lx\n",
-			ssw & FC ?
-			fp->ptregs.format == 0xa ? fp->ptregs.pc + 2 : fp->un.fmtb.baddr - 2
-			:
-			fp->ptregs.format == 0xa ? fp->ptregs.pc + 4 : fp->un.fmtb.baddr);
-	if (ssw & DF)
-		printk ("Data %s fault at %#010lx in %s (pc=%#lx)\n",
-			ssw & RW ? "read" : "write",
-			fp->un.fmtb.daddr,
-			space_names[ssw & DFC], fp->ptregs.pc);
-#endif
-
-	/* ++andreas: If a data fault and an instruction fault happen
-	   at the same time map in both pages.  */
-
-	/* First handle the data fault, if any.  */
-	if (ssw & DF) {
-		addr = fp->un.fmtb.daddr;
-
-#ifdef DEBUG
-		asm volatile ("ptestr %3,%2@,#7,%0\n\t"
-			      "pmove %%psr,%1@"
-			      : "=a&" (desc)
-			      : "a" (&temp), "a" (addr), "d" (ssw));
-#else
-		asm volatile ("ptestr %2,%1@,#7\n\t"
-			      "pmove %%psr,%0@"
-			      : : "a" (&temp), "a" (addr), "d" (ssw));
-#endif
-		mmusr = temp;
-
-#ifdef DEBUG
-		printk("mmusr is %#x for addr %#lx in task %p\n",
-		       mmusr, addr, current);
-		printk("descriptor address is %#lx, contents %#lx\n",
-		       __va(desc), *(unsigned long *)__va(desc));
-#endif
-
-		errorcode = (mmusr & MMU_I) ? 0 : 1;
-		if (!(ssw & RW) || (ssw & RM))
-			errorcode |= 2;
-
-		if (mmusr & (MMU_I | MMU_WP)) {
-			if (ssw & 4) {
-				printk("Data %s fault at %#010lx in %s (pc=%#lx)\n",
-				       ssw & RW ? "read" : "write",
-				       fp->un.fmtb.daddr,
-				       space_names[ssw & DFC], fp->ptregs.pc);
-				goto buserr;
-			}
-			/* Don't try to do anything further if an exception was
-			   handled. */
-			if (do_page_fault (&fp->ptregs, addr, errorcode) < 0)
-				return;
-		} else if (!(mmusr & MMU_I)) {
-			/* probably a 020 cas fault */
-			if (!(ssw & RM) && send_fault_sig(&fp->ptregs) > 0)
-				printk("unexpected bus error (%#x,%#x)\n", ssw, mmusr);
-		} else if (mmusr & (MMU_B|MMU_L|MMU_S)) {
-			printk("invalid %s access at %#lx from pc %#lx\n",
-			       !(ssw & RW) ? "write" : "read", addr,
-			       fp->ptregs.pc);
-			die_if_kernel("Oops",&fp->ptregs,mmusr);
-			force_sig(SIGSEGV, current);
-			return;
-		} else {
-#if 0
-			static volatile long tlong;
-#endif
-
-			printk("weird %s access at %#lx from pc %#lx (ssw is %#x)\n",
-			       !(ssw & RW) ? "write" : "read", addr,
-			       fp->ptregs.pc, ssw);
-			asm volatile ("ptestr #1,%1@,#0\n\t"
-				      "pmove %%psr,%0@"
-				      : /* no outputs */
-				      : "a" (&temp), "a" (addr));
-			mmusr = temp;
-
-			printk ("level 0 mmusr is %#x\n", mmusr);
-#if 0
-			asm volatile ("pmove %%tt0,%0@"
-				      : /* no outputs */
-				      : "a" (&tlong));
-			printk("tt0 is %#lx, ", tlong);
-			asm volatile ("pmove %%tt1,%0@"
-				      : /* no outputs */
-				      : "a" (&tlong));
-			printk("tt1 is %#lx\n", tlong);
-#endif
-#ifdef DEBUG
-			printk("Unknown SIGSEGV - 1\n");
-#endif
-			die_if_kernel("Oops",&fp->ptregs,mmusr);
-			force_sig(SIGSEGV, current);
-			return;
-		}
-
-		/* setup an ATC entry for the access about to be retried */
-		if (!(ssw & RW) || (ssw & RM))
-			asm volatile ("ploadw %1,%0@" : /* no outputs */
-				      : "a" (addr), "d" (ssw));
-		else
-			asm volatile ("ploadr %1,%0@" : /* no outputs */
-				      : "a" (addr), "d" (ssw));
-	}
-
-	/* Now handle the instruction fault. */
-
-	if (!(ssw & (FC|FB)))
-		return;
-
-	if (fp->ptregs.sr & PS_S) {
-		printk("Instruction fault at %#010lx\n",
-			fp->ptregs.pc);
-	buserr:
-		printk ("BAD KERNEL BUSERR\n");
-		die_if_kernel("Oops",&fp->ptregs,0);
-		force_sig(SIGKILL, current);
-		return;
-	}
-
-	/* get the fault address */
-	if (fp->ptregs.format == 10)
-		addr = fp->ptregs.pc + 4;
-	else
-		addr = fp->un.fmtb.baddr;
-	if (ssw & FC)
-		addr -= 2;
-
-	if ((ssw & DF) && ((addr ^ fp->un.fmtb.daddr) & PAGE_MASK) == 0)
-		/* Insn fault on same page as data fault.  But we
-		   should still create the ATC entry.  */
-		goto create_atc_entry;
-
-#ifdef DEBUG
-	asm volatile ("ptestr #1,%2@,#7,%0\n\t"
-		      "pmove %%psr,%1@"
-		      : "=a&" (desc)
-		      : "a" (&temp), "a" (addr));
-#else
-	asm volatile ("ptestr #1,%1@,#7\n\t"
-		      "pmove %%psr,%0@"
-		      : : "a" (&temp), "a" (addr));
-#endif
-	mmusr = temp;
-
-#ifdef DEBUG
-	printk ("mmusr is %#x for addr %#lx in task %p\n",
-		mmusr, addr, current);
-	printk ("descriptor address is %#lx, contents %#lx\n",
-		__va(desc), *(unsigned long *)__va(desc));
-#endif
-
-	if (mmusr & MMU_I)
-		do_page_fault (&fp->ptregs, addr, 0);
-	else if (mmusr & (MMU_B|MMU_L|MMU_S)) {
-		printk ("invalid insn access at %#lx from pc %#lx\n",
-			addr, fp->ptregs.pc);
-#ifdef DEBUG
-		printk("Unknown SIGSEGV - 2\n");
-#endif
-		die_if_kernel("Oops",&fp->ptregs,mmusr);
-		force_sig(SIGSEGV, current);
-		return;
-	}
-
-create_atc_entry:
-	/* setup an ATC entry for the access about to be retried */
-	asm volatile ("ploadr #2,%0@" : /* no outputs */
-		      : "a" (addr));
-}
-#endif /* CPU_M68020_OR_M68030 */
-#endif /* !CONFIG_SUN3 */
-
-asmlinkage void buserr_c(struct frame *fp)
-{
-	/* Only set esp0 if coming from user mode */
-	if (user_mode(&fp->ptregs))
-		current->thread.esp0 = (unsigned long) fp;
-
-#ifdef DEBUG
-	printk ("*** Bus Error *** Format is %x\n", fp->ptregs.format);
-#endif
-
-	switch (fp->ptregs.format) {
-#if defined (CONFIG_M68060)
-	case 4:				/* 68060 access error */
-	  access_error060 (fp);
-	  break;
-#endif
-#if defined (CONFIG_M68040)
-	case 0x7:			/* 68040 access error */
-	  access_error040 (fp);
-	  break;
-#endif
-#if defined (CPU_M68020_OR_M68030)
-	case 0xa:
-	case 0xb:
-	  bus_error030 (fp);
-	  break;
-#endif
-	default:
-	  die_if_kernel("bad frame format",&fp->ptregs,0);
-#ifdef DEBUG
-	  printk("Unknown SIGSEGV - 4\n");
-#endif
-	  force_sig(SIGSEGV, current);
-	}
-}
-
-
-static int kstack_depth_to_print = 48;
-
-void show_trace(unsigned long *stack)
-{
-	unsigned long *endstack;
-	unsigned long addr;
-	int i;
-
-	printk("Call Trace:");
-	addr = (unsigned long)stack + THREAD_SIZE - 1;
-	endstack = (unsigned long *)(addr & -THREAD_SIZE);
-	i = 0;
-	while (stack + 1 <= endstack) {
-		addr = *stack++;
-		/*
-		 * If the address is either in the text segment of the
-		 * kernel, or in the region which contains vmalloc'ed
-		 * memory, it *may* be the address of a calling
-		 * routine; if so, print it so that someone tracing
-		 * down the cause of the crash will be able to figure
-		 * out the call path that was taken.
-		 */
-		if (__kernel_text_address(addr)) {
-#ifndef CONFIG_KALLSYMS
-			if (i % 5 == 0)
-				printk("\n       ");
-#endif
-			printk(" [<%08lx>] %pS\n", addr, (void *)addr);
-			i++;
-		}
-	}
-	printk("\n");
-}
-
-void show_registers(struct pt_regs *regs)
-{
-	struct frame *fp = (struct frame *)regs;
-	mm_segment_t old_fs = get_fs();
-	u16 c, *cp;
-	unsigned long addr;
-	int i;
-
-	print_modules();
-	printk("PC: [<%08lx>] %pS\n", regs->pc, (void *)regs->pc);
-	printk("SR: %04x  SP: %p  a2: %08lx\n", regs->sr, regs, regs->a2);
-	printk("d0: %08lx    d1: %08lx    d2: %08lx    d3: %08lx\n",
-	       regs->d0, regs->d1, regs->d2, regs->d3);
-	printk("d4: %08lx    d5: %08lx    a0: %08lx    a1: %08lx\n",
-	       regs->d4, regs->d5, regs->a0, regs->a1);
-
-	printk("Process %s (pid: %d, task=%p)\n",
-		current->comm, task_pid_nr(current), current);
-	addr = (unsigned long)&fp->un;
-	printk("Frame format=%X ", regs->format);
-	switch (regs->format) {
-	case 0x2:
-		printk("instr addr=%08lx\n", fp->un.fmt2.iaddr);
-		addr += sizeof(fp->un.fmt2);
-		break;
-	case 0x3:
-		printk("eff addr=%08lx\n", fp->un.fmt3.effaddr);
-		addr += sizeof(fp->un.fmt3);
-		break;
-	case 0x4:
-		printk((CPU_IS_060 ? "fault addr=%08lx fslw=%08lx\n"
-			: "eff addr=%08lx pc=%08lx\n"),
-			fp->un.fmt4.effaddr, fp->un.fmt4.pc);
-		addr += sizeof(fp->un.fmt4);
-		break;
-	case 0x7:
-		printk("eff addr=%08lx ssw=%04x faddr=%08lx\n",
-			fp->un.fmt7.effaddr, fp->un.fmt7.ssw, fp->un.fmt7.faddr);
-		printk("wb 1 stat/addr/data: %04x %08lx %08lx\n",
-			fp->un.fmt7.wb1s, fp->un.fmt7.wb1a, fp->un.fmt7.wb1dpd0);
-		printk("wb 2 stat/addr/data: %04x %08lx %08lx\n",
-			fp->un.fmt7.wb2s, fp->un.fmt7.wb2a, fp->un.fmt7.wb2d);
-		printk("wb 3 stat/addr/data: %04x %08lx %08lx\n",
-			fp->un.fmt7.wb3s, fp->un.fmt7.wb3a, fp->un.fmt7.wb3d);
-		printk("push data: %08lx %08lx %08lx %08lx\n",
-			fp->un.fmt7.wb1dpd0, fp->un.fmt7.pd1, fp->un.fmt7.pd2,
-			fp->un.fmt7.pd3);
-		addr += sizeof(fp->un.fmt7);
-		break;
-	case 0x9:
-		printk("instr addr=%08lx\n", fp->un.fmt9.iaddr);
-		addr += sizeof(fp->un.fmt9);
-		break;
-	case 0xa:
-		printk("ssw=%04x isc=%04x isb=%04x daddr=%08lx dobuf=%08lx\n",
-			fp->un.fmta.ssw, fp->un.fmta.isc, fp->un.fmta.isb,
-			fp->un.fmta.daddr, fp->un.fmta.dobuf);
-		addr += sizeof(fp->un.fmta);
-		break;
-	case 0xb:
-		printk("ssw=%04x isc=%04x isb=%04x daddr=%08lx dobuf=%08lx\n",
-			fp->un.fmtb.ssw, fp->un.fmtb.isc, fp->un.fmtb.isb,
-			fp->un.fmtb.daddr, fp->un.fmtb.dobuf);
-		printk("baddr=%08lx dibuf=%08lx ver=%x\n",
-			fp->un.fmtb.baddr, fp->un.fmtb.dibuf, fp->un.fmtb.ver);
-		addr += sizeof(fp->un.fmtb);
-		break;
-	default:
-		printk("\n");
-	}
-	show_stack(NULL, (unsigned long *)addr);
-
-	printk("Code:");
-	set_fs(KERNEL_DS);
-	cp = (u16 *)regs->pc;
-	for (i = -8; i < 16; i++) {
-		if (get_user(c, cp + i) && i >= 0) {
-			printk(" Bad PC value.");
-			break;
-		}
-		printk(i ? " %04x" : " <%04x>", c);
-	}
-	set_fs(old_fs);
-	printk ("\n");
-}
-
-void show_stack(struct task_struct *task, unsigned long *stack)
-{
-	unsigned long *p;
-	unsigned long *endstack;
-	int i;
-
-	if (!stack) {
-		if (task)
-			stack = (unsigned long *)task->thread.esp0;
-		else
-			stack = (unsigned long *)&stack;
-	}
-	endstack = (unsigned long *)(((unsigned long)stack + THREAD_SIZE - 1) & -THREAD_SIZE);
-
-	printk("Stack from %08lx:", (unsigned long)stack);
-	p = stack;
-	for (i = 0; i < kstack_depth_to_print; i++) {
-		if (p + 1 > endstack)
-			break;
-		if (i % 8 == 0)
-			printk("\n       ");
-		printk(" %08lx", *p++);
-	}
-	printk("\n");
-	show_trace(stack);
-}
-
-/*
- * The architecture-independent backtrace generator
- */
-void dump_stack(void)
-{
-	unsigned long stack;
-
-	show_trace(&stack);
-}
-
-EXPORT_SYMBOL(dump_stack);
-
-void bad_super_trap (struct frame *fp)
-{
-	console_verbose();
-	if (fp->ptregs.vector < 4 * ARRAY_SIZE(vec_names))
-		printk ("*** %s ***   FORMAT=%X\n",
-			vec_names[(fp->ptregs.vector) >> 2],
-			fp->ptregs.format);
-	else
-		printk ("*** Exception %d ***   FORMAT=%X\n",
-			(fp->ptregs.vector) >> 2,
-			fp->ptregs.format);
-	if (fp->ptregs.vector >> 2 == VEC_ADDRERR && CPU_IS_020_OR_030) {
-		unsigned short ssw = fp->un.fmtb.ssw;
-
-		printk ("SSW=%#06x  ", ssw);
-
-		if (ssw & RC)
-			printk ("Pipe stage C instruction fault at %#010lx\n",
-				(fp->ptregs.format) == 0xA ?
-				fp->ptregs.pc + 2 : fp->un.fmtb.baddr - 2);
-		if (ssw & RB)
-			printk ("Pipe stage B instruction fault at %#010lx\n",
-				(fp->ptregs.format) == 0xA ?
-				fp->ptregs.pc + 4 : fp->un.fmtb.baddr);
-		if (ssw & DF)
-			printk ("Data %s fault at %#010lx in %s (pc=%#lx)\n",
-				ssw & RW ? "read" : "write",
-				fp->un.fmtb.daddr, space_names[ssw & DFC],
-				fp->ptregs.pc);
-	}
-	printk ("Current process id is %d\n", task_pid_nr(current));
-	die_if_kernel("BAD KERNEL TRAP", &fp->ptregs, 0);
-}
-
-asmlinkage void trap_c(struct frame *fp)
-{
-	int sig;
-	siginfo_t info;
-
-	if (fp->ptregs.sr & PS_S) {
-		if (fp->ptregs.vector == VEC_TRACE << 2) {
-			/* traced a trapping instruction on a 68020/30,
-			 * real exception will be executed afterwards.
-			 */
-		} else if (!handle_kernel_fault(&fp->ptregs))
-			bad_super_trap(fp);
-		return;
-	}
-
-	/* send the appropriate signal to the user program */
-	switch ((fp->ptregs.vector) >> 2) {
-	    case VEC_ADDRERR:
-		info.si_code = BUS_ADRALN;
-		sig = SIGBUS;
-		break;
-	    case VEC_ILLEGAL:
-	    case VEC_LINE10:
-	    case VEC_LINE11:
-		info.si_code = ILL_ILLOPC;
-		sig = SIGILL;
-		break;
-	    case VEC_PRIV:
-		info.si_code = ILL_PRVOPC;
-		sig = SIGILL;
-		break;
-	    case VEC_COPROC:
-		info.si_code = ILL_COPROC;
-		sig = SIGILL;
-		break;
-	    case VEC_TRAP1:
-	    case VEC_TRAP2:
-	    case VEC_TRAP3:
-	    case VEC_TRAP4:
-	    case VEC_TRAP5:
-	    case VEC_TRAP6:
-	    case VEC_TRAP7:
-	    case VEC_TRAP8:
-	    case VEC_TRAP9:
-	    case VEC_TRAP10:
-	    case VEC_TRAP11:
-	    case VEC_TRAP12:
-	    case VEC_TRAP13:
-	    case VEC_TRAP14:
-		info.si_code = ILL_ILLTRP;
-		sig = SIGILL;
-		break;
-	    case VEC_FPBRUC:
-	    case VEC_FPOE:
-	    case VEC_FPNAN:
-		info.si_code = FPE_FLTINV;
-		sig = SIGFPE;
-		break;
-	    case VEC_FPIR:
-		info.si_code = FPE_FLTRES;
-		sig = SIGFPE;
-		break;
-	    case VEC_FPDIVZ:
-		info.si_code = FPE_FLTDIV;
-		sig = SIGFPE;
-		break;
-	    case VEC_FPUNDER:
-		info.si_code = FPE_FLTUND;
-		sig = SIGFPE;
-		break;
-	    case VEC_FPOVER:
-		info.si_code = FPE_FLTOVF;
-		sig = SIGFPE;
-		break;
-	    case VEC_ZERODIV:
-		info.si_code = FPE_INTDIV;
-		sig = SIGFPE;
-		break;
-	    case VEC_CHK:
-	    case VEC_TRAP:
-		info.si_code = FPE_INTOVF;
-		sig = SIGFPE;
-		break;
-	    case VEC_TRACE:		/* ptrace single step */
-		info.si_code = TRAP_TRACE;
-		sig = SIGTRAP;
-		break;
-	    case VEC_TRAP15:		/* breakpoint */
-		info.si_code = TRAP_BRKPT;
-		sig = SIGTRAP;
-		break;
-	    default:
-		info.si_code = ILL_ILLOPC;
-		sig = SIGILL;
-		break;
-	}
-	info.si_signo = sig;
-	info.si_errno = 0;
-	switch (fp->ptregs.format) {
-	    default:
-		info.si_addr = (void *) fp->ptregs.pc;
-		break;
-	    case 2:
-		info.si_addr = (void *) fp->un.fmt2.iaddr;
-		break;
-	    case 7:
-		info.si_addr = (void *) fp->un.fmt7.effaddr;
-		break;
-	    case 9:
-		info.si_addr = (void *) fp->un.fmt9.iaddr;
-		break;
-	    case 10:
-		info.si_addr = (void *) fp->un.fmta.daddr;
-		break;
-	    case 11:
-		info.si_addr = (void *) fp->un.fmtb.daddr;
-		break;
-	}
-	force_sig_info (sig, &info, current);
-}
-
-void die_if_kernel (char *str, struct pt_regs *fp, int nr)
-{
-	if (!(fp->sr & PS_S))
-		return;
-
-	console_verbose();
-	printk("%s: %08x\n",str,nr);
-	show_registers(fp);
-	add_taint(TAINT_DIE);
-	do_exit(SIGSEGV);
-}
-
-/*
- * This function is called if an error occur while accessing
- * user-space from the fpsp040 code.
- */
-asmlinkage void fpsp040_die(void)
-{
-	do_exit(SIGSEGV);
-}
-
-#ifdef CONFIG_M68KFPU_EMU
-asmlinkage void fpemu_signal(int signal, int code, void *addr)
-{
-	siginfo_t info;
-
-	info.si_signo = signal;
-	info.si_errno = 0;
-	info.si_code = code;
-	info.si_addr = addr;
-	force_sig_info(signal, &info, current);
-}
+#include "traps_no.c"
 #endif
diff --git a/arch/m68k/kernel/traps_mm.c b/arch/m68k/kernel/traps_mm.c
new file mode 100644
index 000000000000..4022bbc28878
--- /dev/null
+++ b/arch/m68k/kernel/traps_mm.c
@@ -0,0 +1,1207 @@
+/*
+ *  linux/arch/m68k/kernel/traps.c
+ *
+ *  Copyright (C) 1993, 1994 by Hamish Macdonald
+ *
+ *  68040 fixes by Michael Rausch
+ *  68040 fixes by Martin Apel
+ *  68040 fixes and writeback by Richard Zidlicky
+ *  68060 fixes by Roman Hodek
+ *  68060 fixes by Jesper Skov
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file COPYING in the main directory of this archive
+ * for more details.
+ */
+
+/*
+ * Sets up all exception vectors
+ */
+
+#include <linux/sched.h>
+#include <linux/signal.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/module.h>
+#include <linux/user.h>
+#include <linux/string.h>
+#include <linux/linkage.h>
+#include <linux/init.h>
+#include <linux/ptrace.h>
+#include <linux/kallsyms.h>
+
+#include <asm/setup.h>
+#include <asm/fpu.h>
+#include <asm/system.h>
+#include <asm/uaccess.h>
+#include <asm/traps.h>
+#include <asm/pgalloc.h>
+#include <asm/machdep.h>
+#include <asm/siginfo.h>
+
+/* assembler routines */
+asmlinkage void system_call(void);
+asmlinkage void buserr(void);
+asmlinkage void trap(void);
+asmlinkage void nmihandler(void);
+#ifdef CONFIG_M68KFPU_EMU
+asmlinkage void fpu_emu(void);
+#endif
+
+e_vector vectors[256];
+
+/* nmi handler for the Amiga */
+asm(".text\n"
+    __ALIGN_STR "\n"
+    "nmihandler: rte");
+
+/*
+ * this must be called very early as the kernel might
+ * use some instruction that are emulated on the 060
+ * and so we're prepared for early probe attempts (e.g. nf_init).
+ */
+void __init base_trap_init(void)
+{
+	if (MACH_IS_SUN3X) {
+		extern e_vector *sun3x_prom_vbr;
+
+		__asm__ volatile ("movec %%vbr, %0" : "=r" (sun3x_prom_vbr));
+	}
+
+	/* setup the exception vector table */
+	__asm__ volatile ("movec %0,%%vbr" : : "r" ((void*)vectors));
+
+	if (CPU_IS_060) {
+		/* set up ISP entry points */
+		asmlinkage void unimp_vec(void) asm ("_060_isp_unimp");
+
+		vectors[VEC_UNIMPII] = unimp_vec;
+	}
+
+	vectors[VEC_BUSERR] = buserr;
+	vectors[VEC_ILLEGAL] = trap;
+	vectors[VEC_SYS] = system_call;
+}
+
+void __init trap_init (void)
+{
+	int i;
+
+	for (i = VEC_SPUR; i <= VEC_INT7; i++)
+		vectors[i] = bad_inthandler;
+
+	for (i = 0; i < VEC_USER; i++)
+		if (!vectors[i])
+			vectors[i] = trap;
+
+	for (i = VEC_USER; i < 256; i++)
+		vectors[i] = bad_inthandler;
+
+#ifdef CONFIG_M68KFPU_EMU
+	if (FPU_IS_EMU)
+		vectors[VEC_LINE11] = fpu_emu;
+#endif
+
+	if (CPU_IS_040 && !FPU_IS_EMU) {
+		/* set up FPSP entry points */
+		asmlinkage void dz_vec(void) asm ("dz");
+		asmlinkage void inex_vec(void) asm ("inex");
+		asmlinkage void ovfl_vec(void) asm ("ovfl");
+		asmlinkage void unfl_vec(void) asm ("unfl");
+		asmlinkage void snan_vec(void) asm ("snan");
+		asmlinkage void operr_vec(void) asm ("operr");
+		asmlinkage void bsun_vec(void) asm ("bsun");
+		asmlinkage void fline_vec(void) asm ("fline");
+		asmlinkage void unsupp_vec(void) asm ("unsupp");
+
+		vectors[VEC_FPDIVZ] = dz_vec;
+		vectors[VEC_FPIR] = inex_vec;
+		vectors[VEC_FPOVER] = ovfl_vec;
+		vectors[VEC_FPUNDER] = unfl_vec;
+		vectors[VEC_FPNAN] = snan_vec;
+		vectors[VEC_FPOE] = operr_vec;
+		vectors[VEC_FPBRUC] = bsun_vec;
+		vectors[VEC_LINE11] = fline_vec;
+		vectors[VEC_FPUNSUP] = unsupp_vec;
+	}
+
+	if (CPU_IS_060 && !FPU_IS_EMU) {
+		/* set up IFPSP entry points */
+		asmlinkage void snan_vec6(void) asm ("_060_fpsp_snan");
+		asmlinkage void operr_vec6(void) asm ("_060_fpsp_operr");
+		asmlinkage void ovfl_vec6(void) asm ("_060_fpsp_ovfl");
+		asmlinkage void unfl_vec6(void) asm ("_060_fpsp_unfl");
+		asmlinkage void dz_vec6(void) asm ("_060_fpsp_dz");
+		asmlinkage void inex_vec6(void) asm ("_060_fpsp_inex");
+		asmlinkage void fline_vec6(void) asm ("_060_fpsp_fline");
+		asmlinkage void unsupp_vec6(void) asm ("_060_fpsp_unsupp");
+		asmlinkage void effadd_vec6(void) asm ("_060_fpsp_effadd");
+
+		vectors[VEC_FPNAN] = snan_vec6;
+		vectors[VEC_FPOE] = operr_vec6;
+		vectors[VEC_FPOVER] = ovfl_vec6;
+		vectors[VEC_FPUNDER] = unfl_vec6;
+		vectors[VEC_FPDIVZ] = dz_vec6;
+		vectors[VEC_FPIR] = inex_vec6;
+		vectors[VEC_LINE11] = fline_vec6;
+		vectors[VEC_FPUNSUP] = unsupp_vec6;
+		vectors[VEC_UNIMPEA] = effadd_vec6;
+	}
+
+        /* if running on an amiga, make the NMI interrupt do nothing */
+	if (MACH_IS_AMIGA) {
+		vectors[VEC_INT7] = nmihandler;
+	}
+}
+
+
+static const char *vec_names[] = {
+	[VEC_RESETSP]	= "RESET SP",
+	[VEC_RESETPC]	= "RESET PC",
+	[VEC_BUSERR]	= "BUS ERROR",
+	[VEC_ADDRERR]	= "ADDRESS ERROR",
+	[VEC_ILLEGAL]	= "ILLEGAL INSTRUCTION",
+	[VEC_ZERODIV]	= "ZERO DIVIDE",
+	[VEC_CHK]	= "CHK",
+	[VEC_TRAP]	= "TRAPcc",
+	[VEC_PRIV]	= "PRIVILEGE VIOLATION",
+	[VEC_TRACE]	= "TRACE",
+	[VEC_LINE10]	= "LINE 1010",
+	[VEC_LINE11]	= "LINE 1111",
+	[VEC_RESV12]	= "UNASSIGNED RESERVED 12",
+	[VEC_COPROC]	= "COPROCESSOR PROTOCOL VIOLATION",
+	[VEC_FORMAT]	= "FORMAT ERROR",
+	[VEC_UNINT]	= "UNINITIALIZED INTERRUPT",
+	[VEC_RESV16]	= "UNASSIGNED RESERVED 16",
+	[VEC_RESV17]	= "UNASSIGNED RESERVED 17",
+	[VEC_RESV18]	= "UNASSIGNED RESERVED 18",
+	[VEC_RESV19]	= "UNASSIGNED RESERVED 19",
+	[VEC_RESV20]	= "UNASSIGNED RESERVED 20",
+	[VEC_RESV21]	= "UNASSIGNED RESERVED 21",
+	[VEC_RESV22]	= "UNASSIGNED RESERVED 22",
+	[VEC_RESV23]	= "UNASSIGNED RESERVED 23",
+	[VEC_SPUR]	= "SPURIOUS INTERRUPT",
+	[VEC_INT1]	= "LEVEL 1 INT",
+	[VEC_INT2]	= "LEVEL 2 INT",
+	[VEC_INT3]	= "LEVEL 3 INT",
+	[VEC_INT4]	= "LEVEL 4 INT",
+	[VEC_INT5]	= "LEVEL 5 INT",
+	[VEC_INT6]	= "LEVEL 6 INT",
+	[VEC_INT7]	= "LEVEL 7 INT",
+	[VEC_SYS]	= "SYSCALL",
+	[VEC_TRAP1]	= "TRAP #1",
+	[VEC_TRAP2]	= "TRAP #2",
+	[VEC_TRAP3]	= "TRAP #3",
+	[VEC_TRAP4]	= "TRAP #4",
+	[VEC_TRAP5]	= "TRAP #5",
+	[VEC_TRAP6]	= "TRAP #6",
+	[VEC_TRAP7]	= "TRAP #7",
+	[VEC_TRAP8]	= "TRAP #8",
+	[VEC_TRAP9]	= "TRAP #9",
+	[VEC_TRAP10]	= "TRAP #10",
+	[VEC_TRAP11]	= "TRAP #11",
+	[VEC_TRAP12]	= "TRAP #12",
+	[VEC_TRAP13]	= "TRAP #13",
+	[VEC_TRAP14]	= "TRAP #14",
+	[VEC_TRAP15]	= "TRAP #15",
+	[VEC_FPBRUC]	= "FPCP BSUN",
+	[VEC_FPIR]	= "FPCP INEXACT",
+	[VEC_FPDIVZ]	= "FPCP DIV BY 0",
+	[VEC_FPUNDER]	= "FPCP UNDERFLOW",
+	[VEC_FPOE]	= "FPCP OPERAND ERROR",
+	[VEC_FPOVER]	= "FPCP OVERFLOW",
+	[VEC_FPNAN]	= "FPCP SNAN",
+	[VEC_FPUNSUP]	= "FPCP UNSUPPORTED OPERATION",
+	[VEC_MMUCFG]	= "MMU CONFIGURATION ERROR",
+	[VEC_MMUILL]	= "MMU ILLEGAL OPERATION ERROR",
+	[VEC_MMUACC]	= "MMU ACCESS LEVEL VIOLATION ERROR",
+	[VEC_RESV59]	= "UNASSIGNED RESERVED 59",
+	[VEC_UNIMPEA]	= "UNASSIGNED RESERVED 60",
+	[VEC_UNIMPII]	= "UNASSIGNED RESERVED 61",
+	[VEC_RESV62]	= "UNASSIGNED RESERVED 62",
+	[VEC_RESV63]	= "UNASSIGNED RESERVED 63",
+};
+
+static const char *space_names[] = {
+	[0]		= "Space 0",
+	[USER_DATA]	= "User Data",
+	[USER_PROGRAM]	= "User Program",
+#ifndef CONFIG_SUN3
+	[3]		= "Space 3",
+#else
+	[FC_CONTROL]	= "Control",
+#endif
+	[4]		= "Space 4",
+	[SUPER_DATA]	= "Super Data",
+	[SUPER_PROGRAM]	= "Super Program",
+	[CPU_SPACE]	= "CPU"
+};
+
+void die_if_kernel(char *,struct pt_regs *,int);
+asmlinkage int do_page_fault(struct pt_regs *regs, unsigned long address,
+                             unsigned long error_code);
+int send_fault_sig(struct pt_regs *regs);
+
+asmlinkage void trap_c(struct frame *fp);
+
+#if defined (CONFIG_M68060)
+static inline void access_error060 (struct frame *fp)
+{
+	unsigned long fslw = fp->un.fmt4.pc; /* is really FSLW for access error */
+
+#ifdef DEBUG
+	printk("fslw=%#lx, fa=%#lx\n", fslw, fp->un.fmt4.effaddr);
+#endif
+
+	if (fslw & MMU060_BPE) {
+		/* branch prediction error -> clear branch cache */
+		__asm__ __volatile__ ("movec %/cacr,%/d0\n\t"
+				      "orl   #0x00400000,%/d0\n\t"
+				      "movec %/d0,%/cacr"
+				      : : : "d0" );
+		/* return if there's no other error */
+		if (!(fslw & MMU060_ERR_BITS) && !(fslw & MMU060_SEE))
+			return;
+	}
+
+	if (fslw & (MMU060_DESC_ERR | MMU060_WP | MMU060_SP)) {
+		unsigned long errorcode;
+		unsigned long addr = fp->un.fmt4.effaddr;
+
+		if (fslw & MMU060_MA)
+			addr = (addr + PAGE_SIZE - 1) & PAGE_MASK;
+
+		errorcode = 1;
+		if (fslw & MMU060_DESC_ERR) {
+			__flush_tlb040_one(addr);
+			errorcode = 0;
+		}
+		if (fslw & MMU060_W)
+			errorcode |= 2;
+#ifdef DEBUG
+		printk("errorcode = %d\n", errorcode );
+#endif
+		do_page_fault(&fp->ptregs, addr, errorcode);
+	} else if (fslw & (MMU060_SEE)){
+		/* Software Emulation Error.
+		 * fault during mem_read/mem_write in ifpsp060/os.S
+		 */
+		send_fault_sig(&fp->ptregs);
+	} else if (!(fslw & (MMU060_RE|MMU060_WE)) ||
+		   send_fault_sig(&fp->ptregs) > 0) {
+		printk("pc=%#lx, fa=%#lx\n", fp->ptregs.pc, fp->un.fmt4.effaddr);
+		printk( "68060 access error, fslw=%lx\n", fslw );
+		trap_c( fp );
+	}
+}
+#endif /* CONFIG_M68060 */
+
+#if defined (CONFIG_M68040)
+static inline unsigned long probe040(int iswrite, unsigned long addr, int wbs)
+{
+	unsigned long mmusr;
+	mm_segment_t old_fs = get_fs();
+
+	set_fs(MAKE_MM_SEG(wbs));
+
+	if (iswrite)
+		asm volatile (".chip 68040; ptestw (%0); .chip 68k" : : "a" (addr));
+	else
+		asm volatile (".chip 68040; ptestr (%0); .chip 68k" : : "a" (addr));
+
+	asm volatile (".chip 68040; movec %%mmusr,%0; .chip 68k" : "=r" (mmusr));
+
+	set_fs(old_fs);
+
+	return mmusr;
+}
+
+static inline int do_040writeback1(unsigned short wbs, unsigned long wba,
+				   unsigned long wbd)
+{
+	int res = 0;
+	mm_segment_t old_fs = get_fs();
+
+	/* set_fs can not be moved, otherwise put_user() may oops */
+	set_fs(MAKE_MM_SEG(wbs));
+
+	switch (wbs & WBSIZ_040) {
+	case BA_SIZE_BYTE:
+		res = put_user(wbd & 0xff, (char __user *)wba);
+		break;
+	case BA_SIZE_WORD:
+		res = put_user(wbd & 0xffff, (short __user *)wba);
+		break;
+	case BA_SIZE_LONG:
+		res = put_user(wbd, (int __user *)wba);
+		break;
+	}
+
+	/* set_fs can not be moved, otherwise put_user() may oops */
+	set_fs(old_fs);
+
+
+#ifdef DEBUG
+	printk("do_040writeback1, res=%d\n",res);
+#endif
+
+	return res;
+}
+
+/* after an exception in a writeback the stack frame corresponding
+ * to that exception is discarded, set a few bits in the old frame
+ * to simulate what it should look like
+ */
+static inline void fix_xframe040(struct frame *fp, unsigned long wba, unsigned short wbs)
+{
+	fp->un.fmt7.faddr = wba;
+	fp->un.fmt7.ssw = wbs & 0xff;
+	if (wba != current->thread.faddr)
+	    fp->un.fmt7.ssw |= MA_040;
+}
+
+static inline void do_040writebacks(struct frame *fp)
+{
+	int res = 0;
+#if 0
+	if (fp->un.fmt7.wb1s & WBV_040)
+		printk("access_error040: cannot handle 1st writeback. oops.\n");
+#endif
+
+	if ((fp->un.fmt7.wb2s & WBV_040) &&
+	    !(fp->un.fmt7.wb2s & WBTT_040)) {
+		res = do_040writeback1(fp->un.fmt7.wb2s, fp->un.fmt7.wb2a,
+				       fp->un.fmt7.wb2d);
+		if (res)
+			fix_xframe040(fp, fp->un.fmt7.wb2a, fp->un.fmt7.wb2s);
+		else
+			fp->un.fmt7.wb2s = 0;
+	}
+
+	/* do the 2nd wb only if the first one was successful (except for a kernel wb) */
+	if (fp->un.fmt7.wb3s & WBV_040 && (!res || fp->un.fmt7.wb3s & 4)) {
+		res = do_040writeback1(fp->un.fmt7.wb3s, fp->un.fmt7.wb3a,
+				       fp->un.fmt7.wb3d);
+		if (res)
+		    {
+			fix_xframe040(fp, fp->un.fmt7.wb3a, fp->un.fmt7.wb3s);
+
+			fp->un.fmt7.wb2s = fp->un.fmt7.wb3s;
+			fp->un.fmt7.wb3s &= (~WBV_040);
+			fp->un.fmt7.wb2a = fp->un.fmt7.wb3a;
+			fp->un.fmt7.wb2d = fp->un.fmt7.wb3d;
+		    }
+		else
+			fp->un.fmt7.wb3s = 0;
+	}
+
+	if (res)
+		send_fault_sig(&fp->ptregs);
+}
+
+/*
+ * called from sigreturn(), must ensure userspace code didn't
+ * manipulate exception frame to circumvent protection, then complete
+ * pending writebacks
+ * we just clear TM2 to turn it into a userspace access
+ */
+asmlinkage void berr_040cleanup(struct frame *fp)
+{
+	fp->un.fmt7.wb2s &= ~4;
+	fp->un.fmt7.wb3s &= ~4;
+
+	do_040writebacks(fp);
+}
+
+static inline void access_error040(struct frame *fp)
+{
+	unsigned short ssw = fp->un.fmt7.ssw;
+	unsigned long mmusr;
+
+#ifdef DEBUG
+	printk("ssw=%#x, fa=%#lx\n", ssw, fp->un.fmt7.faddr);
+        printk("wb1s=%#x, wb2s=%#x, wb3s=%#x\n", fp->un.fmt7.wb1s,
+		fp->un.fmt7.wb2s, fp->un.fmt7.wb3s);
+	printk ("wb2a=%lx, wb3a=%lx, wb2d=%lx, wb3d=%lx\n",
+		fp->un.fmt7.wb2a, fp->un.fmt7.wb3a,
+		fp->un.fmt7.wb2d, fp->un.fmt7.wb3d);
+#endif
+
+	if (ssw & ATC_040) {
+		unsigned long addr = fp->un.fmt7.faddr;
+		unsigned long errorcode;
+
+		/*
+		 * The MMU status has to be determined AFTER the address
+		 * has been corrected if there was a misaligned access (MA).
+		 */
+		if (ssw & MA_040)
+			addr = (addr + 7) & -8;
+
+		/* MMU error, get the MMUSR info for this access */
+		mmusr = probe040(!(ssw & RW_040), addr, ssw);
+#ifdef DEBUG
+		printk("mmusr = %lx\n", mmusr);
+#endif
+		errorcode = 1;
+		if (!(mmusr & MMU_R_040)) {
+			/* clear the invalid atc entry */
+			__flush_tlb040_one(addr);
+			errorcode = 0;
+		}
+
+		/* despite what documentation seems to say, RMW
+		 * accesses have always both the LK and RW bits set */
+		if (!(ssw & RW_040) || (ssw & LK_040))
+			errorcode |= 2;
+
+		if (do_page_fault(&fp->ptregs, addr, errorcode)) {
+#ifdef DEBUG
+			printk("do_page_fault() !=0\n");
+#endif
+			if (user_mode(&fp->ptregs)){
+				/* delay writebacks after signal delivery */
+#ifdef DEBUG
+			        printk(".. was usermode - return\n");
+#endif
+				return;
+			}
+			/* disable writeback into user space from kernel
+			 * (if do_page_fault didn't fix the mapping,
+                         * the writeback won't do good)
+			 */
+disable_wb:
+#ifdef DEBUG
+			printk(".. disabling wb2\n");
+#endif
+			if (fp->un.fmt7.wb2a == fp->un.fmt7.faddr)
+				fp->un.fmt7.wb2s &= ~WBV_040;
+			if (fp->un.fmt7.wb3a == fp->un.fmt7.faddr)
+				fp->un.fmt7.wb3s &= ~WBV_040;
+		}
+	} else {
+		/* In case of a bus error we either kill the process or expect
+		 * the kernel to catch the fault, which then is also responsible
+		 * for cleaning up the mess.
+		 */
+		current->thread.signo = SIGBUS;
+		current->thread.faddr = fp->un.fmt7.faddr;
+		if (send_fault_sig(&fp->ptregs) >= 0)
+			printk("68040 bus error (ssw=%x, faddr=%lx)\n", ssw,
+			       fp->un.fmt7.faddr);
+		goto disable_wb;
+	}
+
+	do_040writebacks(fp);
+}
+#endif /* CONFIG_M68040 */
+
+#if defined(CONFIG_SUN3)
+#include <asm/sun3mmu.h>
+
+extern int mmu_emu_handle_fault (unsigned long, int, int);
+
+/* sun3 version of bus_error030 */
+
+static inline void bus_error030 (struct frame *fp)
+{
+	unsigned char buserr_type = sun3_get_buserr ();
+	unsigned long addr, errorcode;
+	unsigned short ssw = fp->un.fmtb.ssw;
+	extern unsigned long _sun3_map_test_start, _sun3_map_test_end;
+
+#ifdef DEBUG
+	if (ssw & (FC | FB))
+		printk ("Instruction fault at %#010lx\n",
+			ssw & FC ?
+			fp->ptregs.format == 0xa ? fp->ptregs.pc + 2 : fp->un.fmtb.baddr - 2
+			:
+			fp->ptregs.format == 0xa ? fp->ptregs.pc + 4 : fp->un.fmtb.baddr);
+	if (ssw & DF)
+		printk ("Data %s fault at %#010lx in %s (pc=%#lx)\n",
+			ssw & RW ? "read" : "write",
+			fp->un.fmtb.daddr,
+			space_names[ssw & DFC], fp->ptregs.pc);
+#endif
+
+	/*
+	 * Check if this page should be demand-mapped. This needs to go before
+	 * the testing for a bad kernel-space access (demand-mapping applies
+	 * to kernel accesses too).
+	 */
+
+	if ((ssw & DF)
+	    && (buserr_type & (SUN3_BUSERR_PROTERR | SUN3_BUSERR_INVALID))) {
+		if (mmu_emu_handle_fault (fp->un.fmtb.daddr, ssw & RW, 0))
+			return;
+	}
+
+	/* Check for kernel-space pagefault (BAD). */
+	if (fp->ptregs.sr & PS_S) {
+		/* kernel fault must be a data fault to user space */
+		if (! ((ssw & DF) && ((ssw & DFC) == USER_DATA))) {
+		     // try checking the kernel mappings before surrender
+		     if (mmu_emu_handle_fault (fp->un.fmtb.daddr, ssw & RW, 1))
+			  return;
+			/* instruction fault or kernel data fault! */
+			if (ssw & (FC | FB))
+				printk ("Instruction fault at %#010lx\n",
+					fp->ptregs.pc);
+			if (ssw & DF) {
+				/* was this fault incurred testing bus mappings? */
+				if((fp->ptregs.pc >= (unsigned long)&_sun3_map_test_start) &&
+				   (fp->ptregs.pc <= (unsigned long)&_sun3_map_test_end)) {
+					send_fault_sig(&fp->ptregs);
+					return;
+				}
+
+				printk ("Data %s fault at %#010lx in %s (pc=%#lx)\n",
+					ssw & RW ? "read" : "write",
+					fp->un.fmtb.daddr,
+					space_names[ssw & DFC], fp->ptregs.pc);
+			}
+			printk ("BAD KERNEL BUSERR\n");
+
+			die_if_kernel("Oops", &fp->ptregs,0);
+			force_sig(SIGKILL, current);
+			return;
+		}
+	} else {
+		/* user fault */
+		if (!(ssw & (FC | FB)) && !(ssw & DF))
+			/* not an instruction fault or data fault! BAD */
+			panic ("USER BUSERR w/o instruction or data fault");
+	}
+
+
+	/* First handle the data fault, if any.  */
+	if (ssw & DF) {
+		addr = fp->un.fmtb.daddr;
+
+// errorcode bit 0:	0 -> no page		1 -> protection fault
+// errorcode bit 1:	0 -> read fault		1 -> write fault
+
+// (buserr_type & SUN3_BUSERR_PROTERR)	-> protection fault
+// (buserr_type & SUN3_BUSERR_INVALID)	-> invalid page fault
+
+		if (buserr_type & SUN3_BUSERR_PROTERR)
+			errorcode = 0x01;
+		else if (buserr_type & SUN3_BUSERR_INVALID)
+			errorcode = 0x00;
+		else {
+#ifdef DEBUG
+			printk ("*** unexpected busfault type=%#04x\n", buserr_type);
+			printk ("invalid %s access at %#lx from pc %#lx\n",
+				!(ssw & RW) ? "write" : "read", addr,
+				fp->ptregs.pc);
+#endif
+			die_if_kernel ("Oops", &fp->ptregs, buserr_type);
+			force_sig (SIGBUS, current);
+			return;
+		}
+
+//todo: wtf is RM bit? --m
+		if (!(ssw & RW) || ssw & RM)
+			errorcode |= 0x02;
+
+		/* Handle page fault. */
+		do_page_fault (&fp->ptregs, addr, errorcode);
+
+		/* Retry the data fault now. */
+		return;
+	}
+
+	/* Now handle the instruction fault. */
+
+	/* Get the fault address. */
+	if (fp->ptregs.format == 0xA)
+		addr = fp->ptregs.pc + 4;
+	else
+		addr = fp->un.fmtb.baddr;
+	if (ssw & FC)
+		addr -= 2;
+
+	if (buserr_type & SUN3_BUSERR_INVALID) {
+		if (!mmu_emu_handle_fault (fp->un.fmtb.daddr, 1, 0))
+			do_page_fault (&fp->ptregs, addr, 0);
+       } else {
+#ifdef DEBUG
+		printk ("protection fault on insn access (segv).\n");
+#endif
+		force_sig (SIGSEGV, current);
+       }
+}
+#else
+#if defined(CPU_M68020_OR_M68030)
+static inline void bus_error030 (struct frame *fp)
+{
+	volatile unsigned short temp;
+	unsigned short mmusr;
+	unsigned long addr, errorcode;
+	unsigned short ssw = fp->un.fmtb.ssw;
+#ifdef DEBUG
+	unsigned long desc;
+
+	printk ("pid = %x  ", current->pid);
+	printk ("SSW=%#06x  ", ssw);
+
+	if (ssw & (FC | FB))
+		printk ("Instruction fault at %#010lx\n",
+			ssw & FC ?
+			fp->ptregs.format == 0xa ? fp->ptregs.pc + 2 : fp->un.fmtb.baddr - 2
+			:
+			fp->ptregs.format == 0xa ? fp->ptregs.pc + 4 : fp->un.fmtb.baddr);
+	if (ssw & DF)
+		printk ("Data %s fault at %#010lx in %s (pc=%#lx)\n",
+			ssw & RW ? "read" : "write",
+			fp->un.fmtb.daddr,
+			space_names[ssw & DFC], fp->ptregs.pc);
+#endif
+
+	/* ++andreas: If a data fault and an instruction fault happen
+	   at the same time map in both pages.  */
+
+	/* First handle the data fault, if any.  */
+	if (ssw & DF) {
+		addr = fp->un.fmtb.daddr;
+
+#ifdef DEBUG
+		asm volatile ("ptestr %3,%2@,#7,%0\n\t"
+			      "pmove %%psr,%1@"
+			      : "=a&" (desc)
+			      : "a" (&temp), "a" (addr), "d" (ssw));
+#else
+		asm volatile ("ptestr %2,%1@,#7\n\t"
+			      "pmove %%psr,%0@"
+			      : : "a" (&temp), "a" (addr), "d" (ssw));
+#endif
+		mmusr = temp;
+
+#ifdef DEBUG
+		printk("mmusr is %#x for addr %#lx in task %p\n",
+		       mmusr, addr, current);
+		printk("descriptor address is %#lx, contents %#lx\n",
+		       __va(desc), *(unsigned long *)__va(desc));
+#endif
+
+		errorcode = (mmusr & MMU_I) ? 0 : 1;
+		if (!(ssw & RW) || (ssw & RM))
+			errorcode |= 2;
+
+		if (mmusr & (MMU_I | MMU_WP)) {
+			if (ssw & 4) {
+				printk("Data %s fault at %#010lx in %s (pc=%#lx)\n",
+				       ssw & RW ? "read" : "write",
+				       fp->un.fmtb.daddr,
+				       space_names[ssw & DFC], fp->ptregs.pc);
+				goto buserr;
+			}
+			/* Don't try to do anything further if an exception was
+			   handled. */
+			if (do_page_fault (&fp->ptregs, addr, errorcode) < 0)
+				return;
+		} else if (!(mmusr & MMU_I)) {
+			/* probably a 020 cas fault */
+			if (!(ssw & RM) && send_fault_sig(&fp->ptregs) > 0)
+				printk("unexpected bus error (%#x,%#x)\n", ssw, mmusr);
+		} else if (mmusr & (MMU_B|MMU_L|MMU_S)) {
+			printk("invalid %s access at %#lx from pc %#lx\n",
+			       !(ssw & RW) ? "write" : "read", addr,
+			       fp->ptregs.pc);
+			die_if_kernel("Oops",&fp->ptregs,mmusr);
+			force_sig(SIGSEGV, current);
+			return;
+		} else {
+#if 0
+			static volatile long tlong;
+#endif
+
+			printk("weird %s access at %#lx from pc %#lx (ssw is %#x)\n",
+			       !(ssw & RW) ? "write" : "read", addr,
+			       fp->ptregs.pc, ssw);
+			asm volatile ("ptestr #1,%1@,#0\n\t"
+				      "pmove %%psr,%0@"
+				      : /* no outputs */
+				      : "a" (&temp), "a" (addr));
+			mmusr = temp;
+
+			printk ("level 0 mmusr is %#x\n", mmusr);
+#if 0
+			asm volatile ("pmove %%tt0,%0@"
+				      : /* no outputs */
+				      : "a" (&tlong));
+			printk("tt0 is %#lx, ", tlong);
+			asm volatile ("pmove %%tt1,%0@"
+				      : /* no outputs */
+				      : "a" (&tlong));
+			printk("tt1 is %#lx\n", tlong);
+#endif
+#ifdef DEBUG
+			printk("Unknown SIGSEGV - 1\n");
+#endif
+			die_if_kernel("Oops",&fp->ptregs,mmusr);
+			force_sig(SIGSEGV, current);
+			return;
+		}
+
+		/* setup an ATC entry for the access about to be retried */
+		if (!(ssw & RW) || (ssw & RM))
+			asm volatile ("ploadw %1,%0@" : /* no outputs */
+				      : "a" (addr), "d" (ssw));
+		else
+			asm volatile ("ploadr %1,%0@" : /* no outputs */
+				      : "a" (addr), "d" (ssw));
+	}
+
+	/* Now handle the instruction fault. */
+
+	if (!(ssw & (FC|FB)))
+		return;
+
+	if (fp->ptregs.sr & PS_S) {
+		printk("Instruction fault at %#010lx\n",
+			fp->ptregs.pc);
+	buserr:
+		printk ("BAD KERNEL BUSERR\n");
+		die_if_kernel("Oops",&fp->ptregs,0);
+		force_sig(SIGKILL, current);
+		return;
+	}
+
+	/* get the fault address */
+	if (fp->ptregs.format == 10)
+		addr = fp->ptregs.pc + 4;
+	else
+		addr = fp->un.fmtb.baddr;
+	if (ssw & FC)
+		addr -= 2;
+
+	if ((ssw & DF) && ((addr ^ fp->un.fmtb.daddr) & PAGE_MASK) == 0)
+		/* Insn fault on same page as data fault.  But we
+		   should still create the ATC entry.  */
+		goto create_atc_entry;
+
+#ifdef DEBUG
+	asm volatile ("ptestr #1,%2@,#7,%0\n\t"
+		      "pmove %%psr,%1@"
+		      : "=a&" (desc)
+		      : "a" (&temp), "a" (addr));
+#else
+	asm volatile ("ptestr #1,%1@,#7\n\t"
+		      "pmove %%psr,%0@"
+		      : : "a" (&temp), "a" (addr));
+#endif
+	mmusr = temp;
+
+#ifdef DEBUG
+	printk ("mmusr is %#x for addr %#lx in task %p\n",
+		mmusr, addr, current);
+	printk ("descriptor address is %#lx, contents %#lx\n",
+		__va(desc), *(unsigned long *)__va(desc));
+#endif
+
+	if (mmusr & MMU_I)
+		do_page_fault (&fp->ptregs, addr, 0);
+	else if (mmusr & (MMU_B|MMU_L|MMU_S)) {
+		printk ("invalid insn access at %#lx from pc %#lx\n",
+			addr, fp->ptregs.pc);
+#ifdef DEBUG
+		printk("Unknown SIGSEGV - 2\n");
+#endif
+		die_if_kernel("Oops",&fp->ptregs,mmusr);
+		force_sig(SIGSEGV, current);
+		return;
+	}
+
+create_atc_entry:
+	/* setup an ATC entry for the access about to be retried */
+	asm volatile ("ploadr #2,%0@" : /* no outputs */
+		      : "a" (addr));
+}
+#endif /* CPU_M68020_OR_M68030 */
+#endif /* !CONFIG_SUN3 */
+
+asmlinkage void buserr_c(struct frame *fp)
+{
+	/* Only set esp0 if coming from user mode */
+	if (user_mode(&fp->ptregs))
+		current->thread.esp0 = (unsigned long) fp;
+
+#ifdef DEBUG
+	printk ("*** Bus Error *** Format is %x\n", fp->ptregs.format);
+#endif
+
+	switch (fp->ptregs.format) {
+#if defined (CONFIG_M68060)
+	case 4:				/* 68060 access error */
+	  access_error060 (fp);
+	  break;
+#endif
+#if defined (CONFIG_M68040)
+	case 0x7:			/* 68040 access error */
+	  access_error040 (fp);
+	  break;
+#endif
+#if defined (CPU_M68020_OR_M68030)
+	case 0xa:
+	case 0xb:
+	  bus_error030 (fp);
+	  break;
+#endif
+	default:
+	  die_if_kernel("bad frame format",&fp->ptregs,0);
+#ifdef DEBUG
+	  printk("Unknown SIGSEGV - 4\n");
+#endif
+	  force_sig(SIGSEGV, current);
+	}
+}
+
+
+static int kstack_depth_to_print = 48;
+
+void show_trace(unsigned long *stack)
+{
+	unsigned long *endstack;
+	unsigned long addr;
+	int i;
+
+	printk("Call Trace:");
+	addr = (unsigned long)stack + THREAD_SIZE - 1;
+	endstack = (unsigned long *)(addr & -THREAD_SIZE);
+	i = 0;
+	while (stack + 1 <= endstack) {
+		addr = *stack++;
+		/*
+		 * If the address is either in the text segment of the
+		 * kernel, or in the region which contains vmalloc'ed
+		 * memory, it *may* be the address of a calling
+		 * routine; if so, print it so that someone tracing
+		 * down the cause of the crash will be able to figure
+		 * out the call path that was taken.
+		 */
+		if (__kernel_text_address(addr)) {
+#ifndef CONFIG_KALLSYMS
+			if (i % 5 == 0)
+				printk("\n       ");
+#endif
+			printk(" [<%08lx>] %pS\n", addr, (void *)addr);
+			i++;
+		}
+	}
+	printk("\n");
+}
+
+void show_registers(struct pt_regs *regs)
+{
+	struct frame *fp = (struct frame *)regs;
+	mm_segment_t old_fs = get_fs();
+	u16 c, *cp;
+	unsigned long addr;
+	int i;
+
+	print_modules();
+	printk("PC: [<%08lx>] %pS\n", regs->pc, (void *)regs->pc);
+	printk("SR: %04x  SP: %p  a2: %08lx\n", regs->sr, regs, regs->a2);
+	printk("d0: %08lx    d1: %08lx    d2: %08lx    d3: %08lx\n",
+	       regs->d0, regs->d1, regs->d2, regs->d3);
+	printk("d4: %08lx    d5: %08lx    a0: %08lx    a1: %08lx\n",
+	       regs->d4, regs->d5, regs->a0, regs->a1);
+
+	printk("Process %s (pid: %d, task=%p)\n",
+		current->comm, task_pid_nr(current), current);
+	addr = (unsigned long)&fp->un;
+	printk("Frame format=%X ", regs->format);
+	switch (regs->format) {
+	case 0x2:
+		printk("instr addr=%08lx\n", fp->un.fmt2.iaddr);
+		addr += sizeof(fp->un.fmt2);
+		break;
+	case 0x3:
+		printk("eff addr=%08lx\n", fp->un.fmt3.effaddr);
+		addr += sizeof(fp->un.fmt3);
+		break;
+	case 0x4:
+		printk((CPU_IS_060 ? "fault addr=%08lx fslw=%08lx\n"
+			: "eff addr=%08lx pc=%08lx\n"),
+			fp->un.fmt4.effaddr, fp->un.fmt4.pc);
+		addr += sizeof(fp->un.fmt4);
+		break;
+	case 0x7:
+		printk("eff addr=%08lx ssw=%04x faddr=%08lx\n",
+			fp->un.fmt7.effaddr, fp->un.fmt7.ssw, fp->un.fmt7.faddr);
+		printk("wb 1 stat/addr/data: %04x %08lx %08lx\n",
+			fp->un.fmt7.wb1s, fp->un.fmt7.wb1a, fp->un.fmt7.wb1dpd0);
+		printk("wb 2 stat/addr/data: %04x %08lx %08lx\n",
+			fp->un.fmt7.wb2s, fp->un.fmt7.wb2a, fp->un.fmt7.wb2d);
+		printk("wb 3 stat/addr/data: %04x %08lx %08lx\n",
+			fp->un.fmt7.wb3s, fp->un.fmt7.wb3a, fp->un.fmt7.wb3d);
+		printk("push data: %08lx %08lx %08lx %08lx\n",
+			fp->un.fmt7.wb1dpd0, fp->un.fmt7.pd1, fp->un.fmt7.pd2,
+			fp->un.fmt7.pd3);
+		addr += sizeof(fp->un.fmt7);
+		break;
+	case 0x9:
+		printk("instr addr=%08lx\n", fp->un.fmt9.iaddr);
+		addr += sizeof(fp->un.fmt9);
+		break;
+	case 0xa:
+		printk("ssw=%04x isc=%04x isb=%04x daddr=%08lx dobuf=%08lx\n",
+			fp->un.fmta.ssw, fp->un.fmta.isc, fp->un.fmta.isb,
+			fp->un.fmta.daddr, fp->un.fmta.dobuf);
+		addr += sizeof(fp->un.fmta);
+		break;
+	case 0xb:
+		printk("ssw=%04x isc=%04x isb=%04x daddr=%08lx dobuf=%08lx\n",
+			fp->un.fmtb.ssw, fp->un.fmtb.isc, fp->un.fmtb.isb,
+			fp->un.fmtb.daddr, fp->un.fmtb.dobuf);
+		printk("baddr=%08lx dibuf=%08lx ver=%x\n",
+			fp->un.fmtb.baddr, fp->un.fmtb.dibuf, fp->un.fmtb.ver);
+		addr += sizeof(fp->un.fmtb);
+		break;
+	default:
+		printk("\n");
+	}
+	show_stack(NULL, (unsigned long *)addr);
+
+	printk("Code:");
+	set_fs(KERNEL_DS);
+	cp = (u16 *)regs->pc;
+	for (i = -8; i < 16; i++) {
+		if (get_user(c, cp + i) && i >= 0) {
+			printk(" Bad PC value.");
+			break;
+		}
+		printk(i ? " %04x" : " <%04x>", c);
+	}
+	set_fs(old_fs);
+	printk ("\n");
+}
+
+void show_stack(struct task_struct *task, unsigned long *stack)
+{
+	unsigned long *p;
+	unsigned long *endstack;
+	int i;
+
+	if (!stack) {
+		if (task)
+			stack = (unsigned long *)task->thread.esp0;
+		else
+			stack = (unsigned long *)&stack;
+	}
+	endstack = (unsigned long *)(((unsigned long)stack + THREAD_SIZE - 1) & -THREAD_SIZE);
+
+	printk("Stack from %08lx:", (unsigned long)stack);
+	p = stack;
+	for (i = 0; i < kstack_depth_to_print; i++) {
+		if (p + 1 > endstack)
+			break;
+		if (i % 8 == 0)
+			printk("\n       ");
+		printk(" %08lx", *p++);
+	}
+	printk("\n");
+	show_trace(stack);
+}
+
+/*
+ * The architecture-independent backtrace generator
+ */
+void dump_stack(void)
+{
+	unsigned long stack;
+
+	show_trace(&stack);
+}
+
+EXPORT_SYMBOL(dump_stack);
+
+void bad_super_trap (struct frame *fp)
+{
+	console_verbose();
+	if (fp->ptregs.vector < 4 * ARRAY_SIZE(vec_names))
+		printk ("*** %s ***   FORMAT=%X\n",
+			vec_names[(fp->ptregs.vector) >> 2],
+			fp->ptregs.format);
+	else
+		printk ("*** Exception %d ***   FORMAT=%X\n",
+			(fp->ptregs.vector) >> 2,
+			fp->ptregs.format);
+	if (fp->ptregs.vector >> 2 == VEC_ADDRERR && CPU_IS_020_OR_030) {
+		unsigned short ssw = fp->un.fmtb.ssw;
+
+		printk ("SSW=%#06x  ", ssw);
+
+		if (ssw & RC)
+			printk ("Pipe stage C instruction fault at %#010lx\n",
+				(fp->ptregs.format) == 0xA ?
+				fp->ptregs.pc + 2 : fp->un.fmtb.baddr - 2);
+		if (ssw & RB)
+			printk ("Pipe stage B instruction fault at %#010lx\n",
+				(fp->ptregs.format) == 0xA ?
+				fp->ptregs.pc + 4 : fp->un.fmtb.baddr);
+		if (ssw & DF)
+			printk ("Data %s fault at %#010lx in %s (pc=%#lx)\n",
+				ssw & RW ? "read" : "write",
+				fp->un.fmtb.daddr, space_names[ssw & DFC],
+				fp->ptregs.pc);
+	}
+	printk ("Current process id is %d\n", task_pid_nr(current));
+	die_if_kernel("BAD KERNEL TRAP", &fp->ptregs, 0);
+}
+
+asmlinkage void trap_c(struct frame *fp)
+{
+	int sig;
+	siginfo_t info;
+
+	if (fp->ptregs.sr & PS_S) {
+		if (fp->ptregs.vector == VEC_TRACE << 2) {
+			/* traced a trapping instruction on a 68020/30,
+			 * real exception will be executed afterwards.
+			 */
+		} else if (!handle_kernel_fault(&fp->ptregs))
+			bad_super_trap(fp);
+		return;
+	}
+
+	/* send the appropriate signal to the user program */
+	switch ((fp->ptregs.vector) >> 2) {
+	    case VEC_ADDRERR:
+		info.si_code = BUS_ADRALN;
+		sig = SIGBUS;
+		break;
+	    case VEC_ILLEGAL:
+	    case VEC_LINE10:
+	    case VEC_LINE11:
+		info.si_code = ILL_ILLOPC;
+		sig = SIGILL;
+		break;
+	    case VEC_PRIV:
+		info.si_code = ILL_PRVOPC;
+		sig = SIGILL;
+		break;
+	    case VEC_COPROC:
+		info.si_code = ILL_COPROC;
+		sig = SIGILL;
+		break;
+	    case VEC_TRAP1:
+	    case VEC_TRAP2:
+	    case VEC_TRAP3:
+	    case VEC_TRAP4:
+	    case VEC_TRAP5:
+	    case VEC_TRAP6:
+	    case VEC_TRAP7:
+	    case VEC_TRAP8:
+	    case VEC_TRAP9:
+	    case VEC_TRAP10:
+	    case VEC_TRAP11:
+	    case VEC_TRAP12:
+	    case VEC_TRAP13:
+	    case VEC_TRAP14:
+		info.si_code = ILL_ILLTRP;
+		sig = SIGILL;
+		break;
+	    case VEC_FPBRUC:
+	    case VEC_FPOE:
+	    case VEC_FPNAN:
+		info.si_code = FPE_FLTINV;
+		sig = SIGFPE;
+		break;
+	    case VEC_FPIR:
+		info.si_code = FPE_FLTRES;
+		sig = SIGFPE;
+		break;
+	    case VEC_FPDIVZ:
+		info.si_code = FPE_FLTDIV;
+		sig = SIGFPE;
+		break;
+	    case VEC_FPUNDER:
+		info.si_code = FPE_FLTUND;
+		sig = SIGFPE;
+		break;
+	    case VEC_FPOVER:
+		info.si_code = FPE_FLTOVF;
+		sig = SIGFPE;
+		break;
+	    case VEC_ZERODIV:
+		info.si_code = FPE_INTDIV;
+		sig = SIGFPE;
+		break;
+	    case VEC_CHK:
+	    case VEC_TRAP:
+		info.si_code = FPE_INTOVF;
+		sig = SIGFPE;
+		break;
+	    case VEC_TRACE:		/* ptrace single step */
+		info.si_code = TRAP_TRACE;
+		sig = SIGTRAP;
+		break;
+	    case VEC_TRAP15:		/* breakpoint */
+		info.si_code = TRAP_BRKPT;
+		sig = SIGTRAP;
+		break;
+	    default:
+		info.si_code = ILL_ILLOPC;
+		sig = SIGILL;
+		break;
+	}
+	info.si_signo = sig;
+	info.si_errno = 0;
+	switch (fp->ptregs.format) {
+	    default:
+		info.si_addr = (void *) fp->ptregs.pc;
+		break;
+	    case 2:
+		info.si_addr = (void *) fp->un.fmt2.iaddr;
+		break;
+	    case 7:
+		info.si_addr = (void *) fp->un.fmt7.effaddr;
+		break;
+	    case 9:
+		info.si_addr = (void *) fp->un.fmt9.iaddr;
+		break;
+	    case 10:
+		info.si_addr = (void *) fp->un.fmta.daddr;
+		break;
+	    case 11:
+		info.si_addr = (void *) fp->un.fmtb.daddr;
+		break;
+	}
+	force_sig_info (sig, &info, current);
+}
+
+void die_if_kernel (char *str, struct pt_regs *fp, int nr)
+{
+	if (!(fp->sr & PS_S))
+		return;
+
+	console_verbose();
+	printk("%s: %08x\n",str,nr);
+	show_registers(fp);
+	add_taint(TAINT_DIE);
+	do_exit(SIGSEGV);
+}
+
+/*
+ * This function is called if an error occur while accessing
+ * user-space from the fpsp040 code.
+ */
+asmlinkage void fpsp040_die(void)
+{
+	do_exit(SIGSEGV);
+}
+
+#ifdef CONFIG_M68KFPU_EMU
+asmlinkage void fpemu_signal(int signal, int code, void *addr)
+{
+	siginfo_t info;
+
+	info.si_signo = signal;
+	info.si_errno = 0;
+	info.si_code = code;
+	info.si_addr = addr;
+	force_sig_info(signal, &info, current);
+}
+#endif
diff --git a/arch/m68knommu/kernel/traps.c b/arch/m68k/kernel/traps_no.c
index a768008dfd06..a768008dfd06 100644
--- a/arch/m68knommu/kernel/traps.c
+++ b/arch/m68k/kernel/traps_no.c
diff --git a/arch/m68k/kernel/vmlinux.lds.S b/arch/m68k/kernel/vmlinux.lds.S
index 99ba315bd0a8..030dabf0bc53 100644
--- a/arch/m68k/kernel/vmlinux.lds.S
+++ b/arch/m68k/kernel/vmlinux.lds.S
@@ -1,10 +1,5 @@
-PHDRS
-{
-  text PT_LOAD FILEHDR PHDRS FLAGS (7);
-  data PT_LOAD FLAGS (7);
-}
-#ifdef CONFIG_SUN3
-#include "vmlinux-sun3.lds"
+#ifdef CONFIG_MMU
+#include "vmlinux.lds_mm.S"
 #else
-#include "vmlinux-std.lds"
+#include "vmlinux.lds_no.S"
 #endif
diff --git a/arch/m68k/kernel/vmlinux.lds_mm.S b/arch/m68k/kernel/vmlinux.lds_mm.S
new file mode 100644
index 000000000000..99ba315bd0a8
--- /dev/null
+++ b/arch/m68k/kernel/vmlinux.lds_mm.S
@@ -0,0 +1,10 @@
+PHDRS
+{
+  text PT_LOAD FILEHDR PHDRS FLAGS (7);
+  data PT_LOAD FLAGS (7);
+}
+#ifdef CONFIG_SUN3
+#include "vmlinux-sun3.lds"
+#else
+#include "vmlinux-std.lds"
+#endif
diff --git a/arch/m68knommu/kernel/vmlinux.lds.S b/arch/m68k/kernel/vmlinux.lds_no.S
index 47e15ebfd893..f4d715cdca0e 100644
--- a/arch/m68knommu/kernel/vmlinux.lds.S
+++ b/arch/m68k/kernel/vmlinux.lds_no.S
@@ -3,7 +3,7 @@
  *
  *	(C) Copyright 2002-2006, Greg Ungerer <gerg@snapgear.com>
  *
- *	This linker script is equiped to build either ROM loaded or RAM
+ *	This linker script is equipped to build either ROM loaded or RAM
  *	run kernels.
  */
 
diff --git a/arch/m68k/lib/Makefile b/arch/m68k/lib/Makefile
index af9abf8d9d98..1f95881d8437 100644
--- a/arch/m68k/lib/Makefile
+++ b/arch/m68k/lib/Makefile
@@ -1,6 +1,5 @@
-#
-# Makefile for m68k-specific library files..
-#
-
-lib-y	:= ashldi3.o ashrdi3.o lshrdi3.o muldi3.o \
-	   checksum.o string.o uaccess.o
+ifdef CONFIG_MMU
+include arch/m68k/lib/Makefile_mm
+else
+include arch/m68k/lib/Makefile_no
+endif
diff --git a/arch/m68k/lib/Makefile_mm b/arch/m68k/lib/Makefile_mm
new file mode 100644
index 000000000000..af9abf8d9d98
--- /dev/null
+++ b/arch/m68k/lib/Makefile_mm
@@ -0,0 +1,6 @@
+#
+# Makefile for m68k-specific library files..
+#
+
+lib-y	:= ashldi3.o ashrdi3.o lshrdi3.o muldi3.o \
+	   checksum.o string.o uaccess.o
diff --git a/arch/m68knommu/lib/Makefile b/arch/m68k/lib/Makefile_no
index 32d852e586d7..32d852e586d7 100644
--- a/arch/m68knommu/lib/Makefile
+++ b/arch/m68k/lib/Makefile_no
diff --git a/arch/m68k/lib/checksum.c b/arch/m68k/lib/checksum.c
index 6216f12a756b..1297536060de 100644
--- a/arch/m68k/lib/checksum.c
+++ b/arch/m68k/lib/checksum.c
@@ -1,425 +1,5 @@
-/*
- * INET		An implementation of the TCP/IP protocol suite for the LINUX
- *		operating system.  INET is implemented using the  BSD Socket
- *		interface as the means of communication with the user level.
- *
- *		IP/TCP/UDP checksumming routines
- *
- * Authors:	Jorge Cwik, <jorge@laser.satlink.net>
- *		Arnt Gulbrandsen, <agulbra@nvg.unit.no>
- *		Tom May, <ftom@netcom.com>
- *		Andreas Schwab, <schwab@issan.informatik.uni-dortmund.de>
- *		Lots of code moved from tcp.c and ip.c; see those files
- *		for more names.
- *
- * 03/02/96	Jes Sorensen, Andreas Schwab, Roman Hodek:
- *		Fixed some nasty bugs, causing some horrible crashes.
- *		A: At some points, the sum (%0) was used as
- *		length-counter instead of the length counter
- *		(%1). Thanks to Roman Hodek for pointing this out.
- *		B: GCC seems to mess up if one uses too many
- *		data-registers to hold input values and one tries to
- *		specify d0 and d1 as scratch registers. Letting gcc
- *		choose these registers itself solves the problem.
- *
- *		This program is free software; you can redistribute it and/or
- *		modify it under the terms of the GNU General Public License
- *		as published by the Free Software Foundation; either version
- *		2 of the License, or (at your option) any later version.
- *
- * 1998/8/31	Andreas Schwab:
- *		Zero out rest of buffer on exception in
- *		csum_partial_copy_from_user.
- */
-
-#include <linux/module.h>
-#include <net/checksum.h>
-
-/*
- * computes a partial checksum, e.g. for TCP/UDP fragments
- */
-
-__wsum csum_partial(const void *buff, int len, __wsum sum)
-{
-	unsigned long tmp1, tmp2;
-	  /*
-	   * Experiments with ethernet and slip connections show that buff
-	   * is aligned on either a 2-byte or 4-byte boundary.
-	   */
-	__asm__("movel %2,%3\n\t"
-		"btst #1,%3\n\t"	/* Check alignment */
-		"jeq 2f\n\t"
-		"subql #2,%1\n\t"	/* buff%4==2: treat first word */
-		"jgt 1f\n\t"
-		"addql #2,%1\n\t"	/* len was == 2, treat only rest */
-		"jra 4f\n"
-	     "1:\t"
-		"addw %2@+,%0\n\t"	/* add first word to sum */
-		"clrl %3\n\t"
-		"addxl %3,%0\n"		/* add X bit */
-	     "2:\t"
-		/* unrolled loop for the main part: do 8 longs at once */
-		"movel %1,%3\n\t"	/* save len in tmp1 */
-		"lsrl #5,%1\n\t"	/* len/32 */
-		"jeq 2f\n\t"		/* not enough... */
-		"subql #1,%1\n"
-	     "1:\t"
-		"movel %2@+,%4\n\t"
-		"addxl %4,%0\n\t"
-		"movel %2@+,%4\n\t"
-		"addxl %4,%0\n\t"
-		"movel %2@+,%4\n\t"
-		"addxl %4,%0\n\t"
-		"movel %2@+,%4\n\t"
-		"addxl %4,%0\n\t"
-		"movel %2@+,%4\n\t"
-		"addxl %4,%0\n\t"
-		"movel %2@+,%4\n\t"
-		"addxl %4,%0\n\t"
-		"movel %2@+,%4\n\t"
-		"addxl %4,%0\n\t"
-		"movel %2@+,%4\n\t"
-		"addxl %4,%0\n\t"
-		"dbra %1,1b\n\t"
-		"clrl %4\n\t"
-		"addxl %4,%0\n\t"	/* add X bit */
-		"clrw %1\n\t"
-		"subql #1,%1\n\t"
-		"jcc 1b\n"
-	     "2:\t"
-		"movel %3,%1\n\t"	/* restore len from tmp1 */
-		"andw #0x1c,%3\n\t"	/* number of rest longs */
-		"jeq 4f\n\t"
-		"lsrw #2,%3\n\t"
-		"subqw #1,%3\n"
-	     "3:\t"
-		/* loop for rest longs */
-		"movel %2@+,%4\n\t"
-		"addxl %4,%0\n\t"
-		"dbra %3,3b\n\t"
-		"clrl %4\n\t"
-		"addxl %4,%0\n"		/* add X bit */
-	     "4:\t"
-		/* now check for rest bytes that do not fit into longs */
-		"andw #3,%1\n\t"
-		"jeq 7f\n\t"
-		"clrl %4\n\t"		/* clear tmp2 for rest bytes */
-		"subqw #2,%1\n\t"
-		"jlt 5f\n\t"
-		"movew %2@+,%4\n\t"	/* have rest >= 2: get word */
-		"swap %4\n\t"		/* into bits 16..31 */
-		"tstw %1\n\t"		/* another byte? */
-		"jeq 6f\n"
-	     "5:\t"
-		"moveb %2@,%4\n\t"	/* have odd rest: get byte */
-		"lslw #8,%4\n\t"	/* into bits 8..15; 16..31 untouched */
-	     "6:\t"
-		"addl %4,%0\n\t"	/* now add rest long to sum */
-		"clrl %4\n\t"
-		"addxl %4,%0\n"		/* add X bit */
-	     "7:\t"
-		: "=d" (sum), "=d" (len), "=a" (buff),
-		  "=&d" (tmp1), "=&d" (tmp2)
-		: "0" (sum), "1" (len), "2" (buff)
-	    );
-	return(sum);
-}
-
-EXPORT_SYMBOL(csum_partial);
-
-
-/*
- * copy from user space while checksumming, with exception handling.
- */
-
-__wsum
-csum_partial_copy_from_user(const void __user *src, void *dst,
-			    int len, __wsum sum, int *csum_err)
-{
-	/*
-	 * GCC doesn't like more than 10 operands for the asm
-	 * statements so we have to use tmp2 for the error
-	 * code.
-	 */
-	unsigned long tmp1, tmp2;
-
-	__asm__("movel %2,%4\n\t"
-		"btst #1,%4\n\t"	/* Check alignment */
-		"jeq 2f\n\t"
-		"subql #2,%1\n\t"	/* buff%4==2: treat first word */
-		"jgt 1f\n\t"
-		"addql #2,%1\n\t"	/* len was == 2, treat only rest */
-		"jra 4f\n"
-	     "1:\n"
-	     "10:\t"
-		"movesw %2@+,%4\n\t"	/* add first word to sum */
-		"addw %4,%0\n\t"
-		"movew %4,%3@+\n\t"
-		"clrl %4\n\t"
-		"addxl %4,%0\n"		/* add X bit */
-	     "2:\t"
-		/* unrolled loop for the main part: do 8 longs at once */
-		"movel %1,%4\n\t"	/* save len in tmp1 */
-		"lsrl #5,%1\n\t"	/* len/32 */
-		"jeq 2f\n\t"		/* not enough... */
-		"subql #1,%1\n"
-	     "1:\n"
-	     "11:\t"
-		"movesl %2@+,%5\n\t"
-		"addxl %5,%0\n\t"
-		"movel %5,%3@+\n\t"
-	     "12:\t"
-		"movesl %2@+,%5\n\t"
-		"addxl %5,%0\n\t"
-		"movel %5,%3@+\n\t"
-	     "13:\t"
-		"movesl %2@+,%5\n\t"
-		"addxl %5,%0\n\t"
-		"movel %5,%3@+\n\t"
-	     "14:\t"
-		"movesl %2@+,%5\n\t"
-		"addxl %5,%0\n\t"
-		"movel %5,%3@+\n\t"
-	     "15:\t"
-		"movesl %2@+,%5\n\t"
-		"addxl %5,%0\n\t"
-		"movel %5,%3@+\n\t"
-	     "16:\t"
-		"movesl %2@+,%5\n\t"
-		"addxl %5,%0\n\t"
-		"movel %5,%3@+\n\t"
-	     "17:\t"
-		"movesl %2@+,%5\n\t"
-		"addxl %5,%0\n\t"
-		"movel %5,%3@+\n\t"
-	     "18:\t"
-		"movesl %2@+,%5\n\t"
-		"addxl %5,%0\n\t"
-		"movel %5,%3@+\n\t"
-		"dbra %1,1b\n\t"
-		"clrl %5\n\t"
-		"addxl %5,%0\n\t"	/* add X bit */
-		"clrw %1\n\t"
-		"subql #1,%1\n\t"
-		"jcc 1b\n"
-	     "2:\t"
-		"movel %4,%1\n\t"	/* restore len from tmp1 */
-		"andw #0x1c,%4\n\t"	/* number of rest longs */
-		"jeq 4f\n\t"
-		"lsrw #2,%4\n\t"
-		"subqw #1,%4\n"
-	     "3:\n"
-		/* loop for rest longs */
-	     "19:\t"
-		"movesl %2@+,%5\n\t"
-		"addxl %5,%0\n\t"
-		"movel %5,%3@+\n\t"
-		"dbra %4,3b\n\t"
-		"clrl %5\n\t"
-		"addxl %5,%0\n"		/* add X bit */
-	     "4:\t"
-		/* now check for rest bytes that do not fit into longs */
-		"andw #3,%1\n\t"
-		"jeq 7f\n\t"
-		"clrl %5\n\t"		/* clear tmp2 for rest bytes */
-		"subqw #2,%1\n\t"
-		"jlt 5f\n\t"
-	     "20:\t"
-		"movesw %2@+,%5\n\t"	/* have rest >= 2: get word */
-		"movew %5,%3@+\n\t"
-		"swap %5\n\t"		/* into bits 16..31 */
-		"tstw %1\n\t"		/* another byte? */
-		"jeq 6f\n"
-	     "5:\n"
-	     "21:\t"
-		"movesb %2@,%5\n\t"	/* have odd rest: get byte */
-		"moveb %5,%3@+\n\t"
-		"lslw #8,%5\n\t"	/* into bits 8..15; 16..31 untouched */
-	     "6:\t"
-		"addl %5,%0\n\t"	/* now add rest long to sum */
-		"clrl %5\n\t"
-		"addxl %5,%0\n\t"	/* add X bit */
-	     "7:\t"
-		"clrl %5\n"		/* no error - clear return value */
-	     "8:\n"
-		".section .fixup,\"ax\"\n"
-		".even\n"
-		/* If any exception occurs zero out the rest.
-		   Similarities with the code above are intentional :-) */
-	     "90:\t"
-		"clrw %3@+\n\t"
-		"movel %1,%4\n\t"
-		"lsrl #5,%1\n\t"
-		"jeq 1f\n\t"
-		"subql #1,%1\n"
-	     "91:\t"
-		"clrl %3@+\n"
-	     "92:\t"
-		"clrl %3@+\n"
-	     "93:\t"
-		"clrl %3@+\n"
-	     "94:\t"
-		"clrl %3@+\n"
-	     "95:\t"
-		"clrl %3@+\n"
-	     "96:\t"
-		"clrl %3@+\n"
-	     "97:\t"
-		"clrl %3@+\n"
-	     "98:\t"
-		"clrl %3@+\n\t"
-		"dbra %1,91b\n\t"
-		"clrw %1\n\t"
-		"subql #1,%1\n\t"
-		"jcc 91b\n"
-	     "1:\t"
-		"movel %4,%1\n\t"
-		"andw #0x1c,%4\n\t"
-		"jeq 1f\n\t"
-		"lsrw #2,%4\n\t"
-		"subqw #1,%4\n"
-	     "99:\t"
-		"clrl %3@+\n\t"
-		"dbra %4,99b\n\t"
-	     "1:\t"
-		"andw #3,%1\n\t"
-		"jeq 9f\n"
-	     "100:\t"
-		"clrw %3@+\n\t"
-		"tstw %1\n\t"
-		"jeq 9f\n"
-	     "101:\t"
-		"clrb %3@+\n"
-	     "9:\t"
-#define STR(X) STR1(X)
-#define STR1(X) #X
-		"moveq #-" STR(EFAULT) ",%5\n\t"
-		"jra 8b\n"
-		".previous\n"
-		".section __ex_table,\"a\"\n"
-		".long 10b,90b\n"
-		".long 11b,91b\n"
-		".long 12b,92b\n"
-		".long 13b,93b\n"
-		".long 14b,94b\n"
-		".long 15b,95b\n"
-		".long 16b,96b\n"
-		".long 17b,97b\n"
-		".long 18b,98b\n"
-		".long 19b,99b\n"
-		".long 20b,100b\n"
-		".long 21b,101b\n"
-		".previous"
-		: "=d" (sum), "=d" (len), "=a" (src), "=a" (dst),
-		  "=&d" (tmp1), "=d" (tmp2)
-		: "0" (sum), "1" (len), "2" (src), "3" (dst)
-	    );
-
-	*csum_err = tmp2;
-
-	return(sum);
-}
-
-EXPORT_SYMBOL(csum_partial_copy_from_user);
-
-
-/*
- * copy from kernel space while checksumming, otherwise like csum_partial
- */
-
-__wsum
-csum_partial_copy_nocheck(const void *src, void *dst, int len, __wsum sum)
-{
-	unsigned long tmp1, tmp2;
-	__asm__("movel %2,%4\n\t"
-		"btst #1,%4\n\t"	/* Check alignment */
-		"jeq 2f\n\t"
-		"subql #2,%1\n\t"	/* buff%4==2: treat first word */
-		"jgt 1f\n\t"
-		"addql #2,%1\n\t"	/* len was == 2, treat only rest */
-		"jra 4f\n"
-	     "1:\t"
-		"movew %2@+,%4\n\t"	/* add first word to sum */
-		"addw %4,%0\n\t"
-		"movew %4,%3@+\n\t"
-		"clrl %4\n\t"
-		"addxl %4,%0\n"		/* add X bit */
-	     "2:\t"
-		/* unrolled loop for the main part: do 8 longs at once */
-		"movel %1,%4\n\t"	/* save len in tmp1 */
-		"lsrl #5,%1\n\t"	/* len/32 */
-		"jeq 2f\n\t"		/* not enough... */
-		"subql #1,%1\n"
-	     "1:\t"
-		"movel %2@+,%5\n\t"
-		"addxl %5,%0\n\t"
-		"movel %5,%3@+\n\t"
-		"movel %2@+,%5\n\t"
-		"addxl %5,%0\n\t"
-		"movel %5,%3@+\n\t"
-		"movel %2@+,%5\n\t"
-		"addxl %5,%0\n\t"
-		"movel %5,%3@+\n\t"
-		"movel %2@+,%5\n\t"
-		"addxl %5,%0\n\t"
-		"movel %5,%3@+\n\t"
-		"movel %2@+,%5\n\t"
-		"addxl %5,%0\n\t"
-		"movel %5,%3@+\n\t"
-		"movel %2@+,%5\n\t"
-		"addxl %5,%0\n\t"
-		"movel %5,%3@+\n\t"
-		"movel %2@+,%5\n\t"
-		"addxl %5,%0\n\t"
-		"movel %5,%3@+\n\t"
-		"movel %2@+,%5\n\t"
-		"addxl %5,%0\n\t"
-		"movel %5,%3@+\n\t"
-		"dbra %1,1b\n\t"
-		"clrl %5\n\t"
-		"addxl %5,%0\n\t"	/* add X bit */
-		"clrw %1\n\t"
-		"subql #1,%1\n\t"
-		"jcc 1b\n"
-	     "2:\t"
-		"movel %4,%1\n\t"	/* restore len from tmp1 */
-		"andw #0x1c,%4\n\t"	/* number of rest longs */
-		"jeq 4f\n\t"
-		"lsrw #2,%4\n\t"
-		"subqw #1,%4\n"
-	     "3:\t"
-		/* loop for rest longs */
-		"movel %2@+,%5\n\t"
-		"addxl %5,%0\n\t"
-		"movel %5,%3@+\n\t"
-		"dbra %4,3b\n\t"
-		"clrl %5\n\t"
-		"addxl %5,%0\n"		/* add X bit */
-	     "4:\t"
-		/* now check for rest bytes that do not fit into longs */
-		"andw #3,%1\n\t"
-		"jeq 7f\n\t"
-		"clrl %5\n\t"		/* clear tmp2 for rest bytes */
-		"subqw #2,%1\n\t"
-		"jlt 5f\n\t"
-		"movew %2@+,%5\n\t"	/* have rest >= 2: get word */
-		"movew %5,%3@+\n\t"
-		"swap %5\n\t"		/* into bits 16..31 */
-		"tstw %1\n\t"		/* another byte? */
-		"jeq 6f\n"
-	     "5:\t"
-		"moveb %2@,%5\n\t"	/* have odd rest: get byte */
-		"moveb %5,%3@+\n\t"
-		"lslw #8,%5\n"		/* into bits 8..15; 16..31 untouched */
-	     "6:\t"
-		"addl %5,%0\n\t"	/* now add rest long to sum */
-		"clrl %5\n\t"
-		"addxl %5,%0\n"		/* add X bit */
-	     "7:\t"
-		: "=d" (sum), "=d" (len), "=a" (src), "=a" (dst),
-		  "=&d" (tmp1), "=&d" (tmp2)
-		: "0" (sum), "1" (len), "2" (src), "3" (dst)
-	    );
-    return(sum);
-}
-EXPORT_SYMBOL(csum_partial_copy_nocheck);
+#ifdef CONFIG_MMU
+#include "checksum_mm.c"
+#else
+#include "checksum_no.c"
+#endif
diff --git a/arch/m68k/lib/checksum_mm.c b/arch/m68k/lib/checksum_mm.c
new file mode 100644
index 000000000000..6216f12a756b
--- /dev/null
+++ b/arch/m68k/lib/checksum_mm.c
@@ -0,0 +1,425 @@
+/*
+ * INET		An implementation of the TCP/IP protocol suite for the LINUX
+ *		operating system.  INET is implemented using the  BSD Socket
+ *		interface as the means of communication with the user level.
+ *
+ *		IP/TCP/UDP checksumming routines
+ *
+ * Authors:	Jorge Cwik, <jorge@laser.satlink.net>
+ *		Arnt Gulbrandsen, <agulbra@nvg.unit.no>
+ *		Tom May, <ftom@netcom.com>
+ *		Andreas Schwab, <schwab@issan.informatik.uni-dortmund.de>
+ *		Lots of code moved from tcp.c and ip.c; see those files
+ *		for more names.
+ *
+ * 03/02/96	Jes Sorensen, Andreas Schwab, Roman Hodek:
+ *		Fixed some nasty bugs, causing some horrible crashes.
+ *		A: At some points, the sum (%0) was used as
+ *		length-counter instead of the length counter
+ *		(%1). Thanks to Roman Hodek for pointing this out.
+ *		B: GCC seems to mess up if one uses too many
+ *		data-registers to hold input values and one tries to
+ *		specify d0 and d1 as scratch registers. Letting gcc
+ *		choose these registers itself solves the problem.
+ *
+ *		This program is free software; you can redistribute it and/or
+ *		modify it under the terms of the GNU General Public License
+ *		as published by the Free Software Foundation; either version
+ *		2 of the License, or (at your option) any later version.
+ *
+ * 1998/8/31	Andreas Schwab:
+ *		Zero out rest of buffer on exception in
+ *		csum_partial_copy_from_user.
+ */
+
+#include <linux/module.h>
+#include <net/checksum.h>
+
+/*
+ * computes a partial checksum, e.g. for TCP/UDP fragments
+ */
+
+__wsum csum_partial(const void *buff, int len, __wsum sum)
+{
+	unsigned long tmp1, tmp2;
+	  /*
+	   * Experiments with ethernet and slip connections show that buff
+	   * is aligned on either a 2-byte or 4-byte boundary.
+	   */
+	__asm__("movel %2,%3\n\t"
+		"btst #1,%3\n\t"	/* Check alignment */
+		"jeq 2f\n\t"
+		"subql #2,%1\n\t"	/* buff%4==2: treat first word */
+		"jgt 1f\n\t"
+		"addql #2,%1\n\t"	/* len was == 2, treat only rest */
+		"jra 4f\n"
+	     "1:\t"
+		"addw %2@+,%0\n\t"	/* add first word to sum */
+		"clrl %3\n\t"
+		"addxl %3,%0\n"		/* add X bit */
+	     "2:\t"
+		/* unrolled loop for the main part: do 8 longs at once */
+		"movel %1,%3\n\t"	/* save len in tmp1 */
+		"lsrl #5,%1\n\t"	/* len/32 */
+		"jeq 2f\n\t"		/* not enough... */
+		"subql #1,%1\n"
+	     "1:\t"
+		"movel %2@+,%4\n\t"
+		"addxl %4,%0\n\t"
+		"movel %2@+,%4\n\t"
+		"addxl %4,%0\n\t"
+		"movel %2@+,%4\n\t"
+		"addxl %4,%0\n\t"
+		"movel %2@+,%4\n\t"
+		"addxl %4,%0\n\t"
+		"movel %2@+,%4\n\t"
+		"addxl %4,%0\n\t"
+		"movel %2@+,%4\n\t"
+		"addxl %4,%0\n\t"
+		"movel %2@+,%4\n\t"
+		"addxl %4,%0\n\t"
+		"movel %2@+,%4\n\t"
+		"addxl %4,%0\n\t"
+		"dbra %1,1b\n\t"
+		"clrl %4\n\t"
+		"addxl %4,%0\n\t"	/* add X bit */
+		"clrw %1\n\t"
+		"subql #1,%1\n\t"
+		"jcc 1b\n"
+	     "2:\t"
+		"movel %3,%1\n\t"	/* restore len from tmp1 */
+		"andw #0x1c,%3\n\t"	/* number of rest longs */
+		"jeq 4f\n\t"
+		"lsrw #2,%3\n\t"
+		"subqw #1,%3\n"
+	     "3:\t"
+		/* loop for rest longs */
+		"movel %2@+,%4\n\t"
+		"addxl %4,%0\n\t"
+		"dbra %3,3b\n\t"
+		"clrl %4\n\t"
+		"addxl %4,%0\n"		/* add X bit */
+	     "4:\t"
+		/* now check for rest bytes that do not fit into longs */
+		"andw #3,%1\n\t"
+		"jeq 7f\n\t"
+		"clrl %4\n\t"		/* clear tmp2 for rest bytes */
+		"subqw #2,%1\n\t"
+		"jlt 5f\n\t"
+		"movew %2@+,%4\n\t"	/* have rest >= 2: get word */
+		"swap %4\n\t"		/* into bits 16..31 */
+		"tstw %1\n\t"		/* another byte? */
+		"jeq 6f\n"
+	     "5:\t"
+		"moveb %2@,%4\n\t"	/* have odd rest: get byte */
+		"lslw #8,%4\n\t"	/* into bits 8..15; 16..31 untouched */
+	     "6:\t"
+		"addl %4,%0\n\t"	/* now add rest long to sum */
+		"clrl %4\n\t"
+		"addxl %4,%0\n"		/* add X bit */
+	     "7:\t"
+		: "=d" (sum), "=d" (len), "=a" (buff),
+		  "=&d" (tmp1), "=&d" (tmp2)
+		: "0" (sum), "1" (len), "2" (buff)
+	    );
+	return(sum);
+}
+
+EXPORT_SYMBOL(csum_partial);
+
+
+/*
+ * copy from user space while checksumming, with exception handling.
+ */
+
+__wsum
+csum_partial_copy_from_user(const void __user *src, void *dst,
+			    int len, __wsum sum, int *csum_err)
+{
+	/*
+	 * GCC doesn't like more than 10 operands for the asm
+	 * statements so we have to use tmp2 for the error
+	 * code.
+	 */
+	unsigned long tmp1, tmp2;
+
+	__asm__("movel %2,%4\n\t"
+		"btst #1,%4\n\t"	/* Check alignment */
+		"jeq 2f\n\t"
+		"subql #2,%1\n\t"	/* buff%4==2: treat first word */
+		"jgt 1f\n\t"
+		"addql #2,%1\n\t"	/* len was == 2, treat only rest */
+		"jra 4f\n"
+	     "1:\n"
+	     "10:\t"
+		"movesw %2@+,%4\n\t"	/* add first word to sum */
+		"addw %4,%0\n\t"
+		"movew %4,%3@+\n\t"
+		"clrl %4\n\t"
+		"addxl %4,%0\n"		/* add X bit */
+	     "2:\t"
+		/* unrolled loop for the main part: do 8 longs at once */
+		"movel %1,%4\n\t"	/* save len in tmp1 */
+		"lsrl #5,%1\n\t"	/* len/32 */
+		"jeq 2f\n\t"		/* not enough... */
+		"subql #1,%1\n"
+	     "1:\n"
+	     "11:\t"
+		"movesl %2@+,%5\n\t"
+		"addxl %5,%0\n\t"
+		"movel %5,%3@+\n\t"
+	     "12:\t"
+		"movesl %2@+,%5\n\t"
+		"addxl %5,%0\n\t"
+		"movel %5,%3@+\n\t"
+	     "13:\t"
+		"movesl %2@+,%5\n\t"
+		"addxl %5,%0\n\t"
+		"movel %5,%3@+\n\t"
+	     "14:\t"
+		"movesl %2@+,%5\n\t"
+		"addxl %5,%0\n\t"
+		"movel %5,%3@+\n\t"
+	     "15:\t"
+		"movesl %2@+,%5\n\t"
+		"addxl %5,%0\n\t"
+		"movel %5,%3@+\n\t"
+	     "16:\t"
+		"movesl %2@+,%5\n\t"
+		"addxl %5,%0\n\t"
+		"movel %5,%3@+\n\t"
+	     "17:\t"
+		"movesl %2@+,%5\n\t"
+		"addxl %5,%0\n\t"
+		"movel %5,%3@+\n\t"
+	     "18:\t"
+		"movesl %2@+,%5\n\t"
+		"addxl %5,%0\n\t"
+		"movel %5,%3@+\n\t"
+		"dbra %1,1b\n\t"
+		"clrl %5\n\t"
+		"addxl %5,%0\n\t"	/* add X bit */
+		"clrw %1\n\t"
+		"subql #1,%1\n\t"
+		"jcc 1b\n"
+	     "2:\t"
+		"movel %4,%1\n\t"	/* restore len from tmp1 */
+		"andw #0x1c,%4\n\t"	/* number of rest longs */
+		"jeq 4f\n\t"
+		"lsrw #2,%4\n\t"
+		"subqw #1,%4\n"
+	     "3:\n"
+		/* loop for rest longs */
+	     "19:\t"
+		"movesl %2@+,%5\n\t"
+		"addxl %5,%0\n\t"
+		"movel %5,%3@+\n\t"
+		"dbra %4,3b\n\t"
+		"clrl %5\n\t"
+		"addxl %5,%0\n"		/* add X bit */
+	     "4:\t"
+		/* now check for rest bytes that do not fit into longs */
+		"andw #3,%1\n\t"
+		"jeq 7f\n\t"
+		"clrl %5\n\t"		/* clear tmp2 for rest bytes */
+		"subqw #2,%1\n\t"
+		"jlt 5f\n\t"
+	     "20:\t"
+		"movesw %2@+,%5\n\t"	/* have rest >= 2: get word */
+		"movew %5,%3@+\n\t"
+		"swap %5\n\t"		/* into bits 16..31 */
+		"tstw %1\n\t"		/* another byte? */
+		"jeq 6f\n"
+	     "5:\n"
+	     "21:\t"
+		"movesb %2@,%5\n\t"	/* have odd rest: get byte */
+		"moveb %5,%3@+\n\t"
+		"lslw #8,%5\n\t"	/* into bits 8..15; 16..31 untouched */
+	     "6:\t"
+		"addl %5,%0\n\t"	/* now add rest long to sum */
+		"clrl %5\n\t"
+		"addxl %5,%0\n\t"	/* add X bit */
+	     "7:\t"
+		"clrl %5\n"		/* no error - clear return value */
+	     "8:\n"
+		".section .fixup,\"ax\"\n"
+		".even\n"
+		/* If any exception occurs zero out the rest.
+		   Similarities with the code above are intentional :-) */
+	     "90:\t"
+		"clrw %3@+\n\t"
+		"movel %1,%4\n\t"
+		"lsrl #5,%1\n\t"
+		"jeq 1f\n\t"
+		"subql #1,%1\n"
+	     "91:\t"
+		"clrl %3@+\n"
+	     "92:\t"
+		"clrl %3@+\n"
+	     "93:\t"
+		"clrl %3@+\n"
+	     "94:\t"
+		"clrl %3@+\n"
+	     "95:\t"
+		"clrl %3@+\n"
+	     "96:\t"
+		"clrl %3@+\n"
+	     "97:\t"
+		"clrl %3@+\n"
+	     "98:\t"
+		"clrl %3@+\n\t"
+		"dbra %1,91b\n\t"
+		"clrw %1\n\t"
+		"subql #1,%1\n\t"
+		"jcc 91b\n"
+	     "1:\t"
+		"movel %4,%1\n\t"
+		"andw #0x1c,%4\n\t"
+		"jeq 1f\n\t"
+		"lsrw #2,%4\n\t"
+		"subqw #1,%4\n"
+	     "99:\t"
+		"clrl %3@+\n\t"
+		"dbra %4,99b\n\t"
+	     "1:\t"
+		"andw #3,%1\n\t"
+		"jeq 9f\n"
+	     "100:\t"
+		"clrw %3@+\n\t"
+		"tstw %1\n\t"
+		"jeq 9f\n"
+	     "101:\t"
+		"clrb %3@+\n"
+	     "9:\t"
+#define STR(X) STR1(X)
+#define STR1(X) #X
+		"moveq #-" STR(EFAULT) ",%5\n\t"
+		"jra 8b\n"
+		".previous\n"
+		".section __ex_table,\"a\"\n"
+		".long 10b,90b\n"
+		".long 11b,91b\n"
+		".long 12b,92b\n"
+		".long 13b,93b\n"
+		".long 14b,94b\n"
+		".long 15b,95b\n"
+		".long 16b,96b\n"
+		".long 17b,97b\n"
+		".long 18b,98b\n"
+		".long 19b,99b\n"
+		".long 20b,100b\n"
+		".long 21b,101b\n"
+		".previous"
+		: "=d" (sum), "=d" (len), "=a" (src), "=a" (dst),
+		  "=&d" (tmp1), "=d" (tmp2)
+		: "0" (sum), "1" (len), "2" (src), "3" (dst)
+	    );
+
+	*csum_err = tmp2;
+
+	return(sum);
+}
+
+EXPORT_SYMBOL(csum_partial_copy_from_user);
+
+
+/*
+ * copy from kernel space while checksumming, otherwise like csum_partial
+ */
+
+__wsum
+csum_partial_copy_nocheck(const void *src, void *dst, int len, __wsum sum)
+{
+	unsigned long tmp1, tmp2;
+	__asm__("movel %2,%4\n\t"
+		"btst #1,%4\n\t"	/* Check alignment */
+		"jeq 2f\n\t"
+		"subql #2,%1\n\t"	/* buff%4==2: treat first word */
+		"jgt 1f\n\t"
+		"addql #2,%1\n\t"	/* len was == 2, treat only rest */
+		"jra 4f\n"
+	     "1:\t"
+		"movew %2@+,%4\n\t"	/* add first word to sum */
+		"addw %4,%0\n\t"
+		"movew %4,%3@+\n\t"
+		"clrl %4\n\t"
+		"addxl %4,%0\n"		/* add X bit */
+	     "2:\t"
+		/* unrolled loop for the main part: do 8 longs at once */
+		"movel %1,%4\n\t"	/* save len in tmp1 */
+		"lsrl #5,%1\n\t"	/* len/32 */
+		"jeq 2f\n\t"		/* not enough... */
+		"subql #1,%1\n"
+	     "1:\t"
+		"movel %2@+,%5\n\t"
+		"addxl %5,%0\n\t"
+		"movel %5,%3@+\n\t"
+		"movel %2@+,%5\n\t"
+		"addxl %5,%0\n\t"
+		"movel %5,%3@+\n\t"
+		"movel %2@+,%5\n\t"
+		"addxl %5,%0\n\t"
+		"movel %5,%3@+\n\t"
+		"movel %2@+,%5\n\t"
+		"addxl %5,%0\n\t"
+		"movel %5,%3@+\n\t"
+		"movel %2@+,%5\n\t"
+		"addxl %5,%0\n\t"
+		"movel %5,%3@+\n\t"
+		"movel %2@+,%5\n\t"
+		"addxl %5,%0\n\t"
+		"movel %5,%3@+\n\t"
+		"movel %2@+,%5\n\t"
+		"addxl %5,%0\n\t"
+		"movel %5,%3@+\n\t"
+		"movel %2@+,%5\n\t"
+		"addxl %5,%0\n\t"
+		"movel %5,%3@+\n\t"
+		"dbra %1,1b\n\t"
+		"clrl %5\n\t"
+		"addxl %5,%0\n\t"	/* add X bit */
+		"clrw %1\n\t"
+		"subql #1,%1\n\t"
+		"jcc 1b\n"
+	     "2:\t"
+		"movel %4,%1\n\t"	/* restore len from tmp1 */
+		"andw #0x1c,%4\n\t"	/* number of rest longs */
+		"jeq 4f\n\t"
+		"lsrw #2,%4\n\t"
+		"subqw #1,%4\n"
+	     "3:\t"
+		/* loop for rest longs */
+		"movel %2@+,%5\n\t"
+		"addxl %5,%0\n\t"
+		"movel %5,%3@+\n\t"
+		"dbra %4,3b\n\t"
+		"clrl %5\n\t"
+		"addxl %5,%0\n"		/* add X bit */
+	     "4:\t"
+		/* now check for rest bytes that do not fit into longs */
+		"andw #3,%1\n\t"
+		"jeq 7f\n\t"
+		"clrl %5\n\t"		/* clear tmp2 for rest bytes */
+		"subqw #2,%1\n\t"
+		"jlt 5f\n\t"
+		"movew %2@+,%5\n\t"	/* have rest >= 2: get word */
+		"movew %5,%3@+\n\t"
+		"swap %5\n\t"		/* into bits 16..31 */
+		"tstw %1\n\t"		/* another byte? */
+		"jeq 6f\n"
+	     "5:\t"
+		"moveb %2@,%5\n\t"	/* have odd rest: get byte */
+		"moveb %5,%3@+\n\t"
+		"lslw #8,%5\n"		/* into bits 8..15; 16..31 untouched */
+	     "6:\t"
+		"addl %5,%0\n\t"	/* now add rest long to sum */
+		"clrl %5\n\t"
+		"addxl %5,%0\n"		/* add X bit */
+	     "7:\t"
+		: "=d" (sum), "=d" (len), "=a" (src), "=a" (dst),
+		  "=&d" (tmp1), "=&d" (tmp2)
+		: "0" (sum), "1" (len), "2" (src), "3" (dst)
+	    );
+    return(sum);
+}
+EXPORT_SYMBOL(csum_partial_copy_nocheck);
diff --git a/arch/m68knommu/lib/checksum.c b/arch/m68k/lib/checksum_no.c
index eccf25d3d73e..eccf25d3d73e 100644
--- a/arch/m68knommu/lib/checksum.c
+++ b/arch/m68k/lib/checksum_no.c
diff --git a/arch/m68knommu/lib/delay.c b/arch/m68k/lib/delay.c
index 5bd5472d38a0..5bd5472d38a0 100644
--- a/arch/m68knommu/lib/delay.c
+++ b/arch/m68k/lib/delay.c
diff --git a/arch/m68knommu/lib/divsi3.S b/arch/m68k/lib/divsi3.S
index ec307b61991e..ec307b61991e 100644
--- a/arch/m68knommu/lib/divsi3.S
+++ b/arch/m68k/lib/divsi3.S
diff --git a/arch/m68knommu/lib/memcpy.c b/arch/m68k/lib/memcpy.c
index b50dbcad4746..b50dbcad4746 100644
--- a/arch/m68knommu/lib/memcpy.c
+++ b/arch/m68k/lib/memcpy.c
diff --git a/arch/m68knommu/lib/memmove.c b/arch/m68k/lib/memmove.c
index b3dcfe9dab7e..b3dcfe9dab7e 100644
--- a/arch/m68knommu/lib/memmove.c
+++ b/arch/m68k/lib/memmove.c
diff --git a/arch/m68knommu/lib/memset.c b/arch/m68k/lib/memset.c
index 1389bf455633..1389bf455633 100644
--- a/arch/m68knommu/lib/memset.c
+++ b/arch/m68k/lib/memset.c
diff --git a/arch/m68knommu/lib/modsi3.S b/arch/m68k/lib/modsi3.S
index ef3849435768..ef3849435768 100644
--- a/arch/m68knommu/lib/modsi3.S
+++ b/arch/m68k/lib/modsi3.S
diff --git a/arch/m68k/lib/muldi3.c b/arch/m68k/lib/muldi3.c
index be4f275649e3..16e0eb338ee0 100644
--- a/arch/m68k/lib/muldi3.c
+++ b/arch/m68k/lib/muldi3.c
@@ -1,63 +1,5 @@
-/* muldi3.c extracted from gcc-2.7.2.3/libgcc2.c and
-			   gcc-2.7.2.3/longlong.h which is: */
-/* Copyright (C) 1989, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
-
-This file is part of GNU CC.
-
-GNU CC is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
-
-GNU CC is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GNU CC; see the file COPYING.  If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA.  */
-
-#define BITS_PER_UNIT 8
-
-#define umul_ppmm(w1, w0, u, v) \
-  __asm__ ("mulu%.l %3,%1:%0"						\
-           : "=d" ((USItype)(w0)),					\
-             "=d" ((USItype)(w1))					\
-           : "%0" ((USItype)(u)),					\
-             "dmi" ((USItype)(v)))
-
-#define __umulsidi3(u, v) \
-  ({DIunion __w;							\
-    umul_ppmm (__w.s.high, __w.s.low, u, v);				\
-    __w.ll; })
-
-typedef		 int SItype	__attribute__ ((mode (SI)));
-typedef unsigned int USItype	__attribute__ ((mode (SI)));
-typedef		 int DItype	__attribute__ ((mode (DI)));
-typedef int word_type __attribute__ ((mode (__word__)));
-
-struct DIstruct {SItype high, low;};
-
-typedef union
-{
-  struct DIstruct s;
-  DItype ll;
-} DIunion;
-
-DItype
-__muldi3 (DItype u, DItype v)
-{
-  DIunion w;
-  DIunion uu, vv;
-
-  uu.ll = u,
-  vv.ll = v;
-
-  w.ll = __umulsidi3 (uu.s.low, vv.s.low);
-  w.s.high += ((USItype) uu.s.low * (USItype) vv.s.high
-	       + (USItype) uu.s.high * (USItype) vv.s.low);
-
-  return w.ll;
-}
+#ifdef CONFIG_MMU
+#include "muldi3_mm.c"
+#else
+#include "muldi3_no.c"
+#endif
diff --git a/arch/m68knommu/lib/ashrdi3.c b/arch/m68k/lib/muldi3_mm.c
index 78efb65e315a..be4f275649e3 100644
--- a/arch/m68knommu/lib/ashrdi3.c
+++ b/arch/m68k/lib/muldi3_mm.c
@@ -1,4 +1,5 @@
-/* ashrdi3.c extracted from gcc-2.7.2/libgcc2.c which is: */
+/* muldi3.c extracted from gcc-2.7.2.3/libgcc2.c and
+			   gcc-2.7.2.3/longlong.h which is: */
 /* Copyright (C) 1989, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
 
 This file is part of GNU CC.
@@ -20,7 +21,19 @@ Boston, MA 02111-1307, USA.  */
 
 #define BITS_PER_UNIT 8
 
-typedef 	 int SItype	__attribute__ ((mode (SI)));
+#define umul_ppmm(w1, w0, u, v) \
+  __asm__ ("mulu%.l %3,%1:%0"						\
+           : "=d" ((USItype)(w0)),					\
+             "=d" ((USItype)(w1))					\
+           : "%0" ((USItype)(u)),					\
+             "dmi" ((USItype)(v)))
+
+#define __umulsidi3(u, v) \
+  ({DIunion __w;							\
+    umul_ppmm (__w.s.high, __w.s.low, u, v);				\
+    __w.ll; })
+
+typedef		 int SItype	__attribute__ ((mode (SI)));
 typedef unsigned int USItype	__attribute__ ((mode (SI)));
 typedef		 int DItype	__attribute__ ((mode (DI)));
 typedef int word_type __attribute__ ((mode (__word__)));
@@ -34,30 +47,17 @@ typedef union
 } DIunion;
 
 DItype
-__ashrdi3 (DItype u, word_type b)
+__muldi3 (DItype u, DItype v)
 {
   DIunion w;
-  word_type bm;
-  DIunion uu;
-
-  if (b == 0)
-    return u;
-
-  uu.ll = u;
-
-  bm = (sizeof (SItype) * BITS_PER_UNIT) - b;
-  if (bm <= 0)
-    {
-      /* w.s.high = 1..1 or 0..0 */
-      w.s.high = uu.s.high >> (sizeof (SItype) * BITS_PER_UNIT - 1);
-      w.s.low = uu.s.high >> -bm;
-    }
-  else
-    {
-      USItype carries = (USItype)uu.s.high << bm;
-      w.s.high = uu.s.high >> b;
-      w.s.low = ((USItype)uu.s.low >> b) | carries;
-    }
+  DIunion uu, vv;
+
+  uu.ll = u,
+  vv.ll = v;
+
+  w.ll = __umulsidi3 (uu.s.low, vv.s.low);
+  w.s.high += ((USItype) uu.s.low * (USItype) vv.s.high
+	       + (USItype) uu.s.high * (USItype) vv.s.low);
 
   return w.ll;
 }
diff --git a/arch/m68knommu/lib/muldi3.c b/arch/m68k/lib/muldi3_no.c
index 34af72c30303..34af72c30303 100644
--- a/arch/m68knommu/lib/muldi3.c
+++ b/arch/m68k/lib/muldi3_no.c
diff --git a/arch/m68knommu/lib/mulsi3.S b/arch/m68k/lib/mulsi3.S
index ce29ea37b45f..ce29ea37b45f 100644
--- a/arch/m68knommu/lib/mulsi3.S
+++ b/arch/m68k/lib/mulsi3.S
diff --git a/arch/m68knommu/lib/udivsi3.S b/arch/m68k/lib/udivsi3.S
index c424c4a1f0a3..c424c4a1f0a3 100644
--- a/arch/m68knommu/lib/udivsi3.S
+++ b/arch/m68k/lib/udivsi3.S
diff --git a/arch/m68knommu/lib/umodsi3.S b/arch/m68k/lib/umodsi3.S
index 5def5f626478..5def5f626478 100644
--- a/arch/m68knommu/lib/umodsi3.S
+++ b/arch/m68k/lib/umodsi3.S
diff --git a/arch/m68k/mm/Makefile b/arch/m68k/mm/Makefile
index 5eaa43c4cb3c..b60270e4954b 100644
--- a/arch/m68k/mm/Makefile
+++ b/arch/m68k/mm/Makefile
@@ -1,8 +1,5 @@
-#
-# Makefile for the linux m68k-specific parts of the memory manager.
-#
-
-obj-y		:= cache.o init.o fault.o hwtest.o
-
-obj-$(CONFIG_MMU_MOTOROLA)	+= kmap.o memory.o motorola.o
-obj-$(CONFIG_MMU_SUN3)		+= sun3kmap.o sun3mmu.o
+ifdef CONFIG_MMU
+include arch/m68k/mm/Makefile_mm
+else
+include arch/m68k/mm/Makefile_no
+endif
diff --git a/arch/m68k/mm/Makefile_mm b/arch/m68k/mm/Makefile_mm
new file mode 100644
index 000000000000..5eaa43c4cb3c
--- /dev/null
+++ b/arch/m68k/mm/Makefile_mm
@@ -0,0 +1,8 @@
+#
+# Makefile for the linux m68k-specific parts of the memory manager.
+#
+
+obj-y		:= cache.o init.o fault.o hwtest.o
+
+obj-$(CONFIG_MMU_MOTOROLA)	+= kmap.o memory.o motorola.o
+obj-$(CONFIG_MMU_SUN3)		+= sun3kmap.o sun3mmu.o
diff --git a/arch/m68knommu/mm/Makefile b/arch/m68k/mm/Makefile_no
index b54ab6b4b523..b54ab6b4b523 100644
--- a/arch/m68knommu/mm/Makefile
+++ b/arch/m68k/mm/Makefile_no
diff --git a/arch/m68k/mm/init.c b/arch/m68k/mm/init.c
index 8bc842554e5b..27b5ce089a34 100644
--- a/arch/m68k/mm/init.c
+++ b/arch/m68k/mm/init.c
@@ -1,150 +1,5 @@
-/*
- *  linux/arch/m68k/mm/init.c
- *
- *  Copyright (C) 1995  Hamish Macdonald
- *
- *  Contains common initialization routines, specific init code moved
- *  to motorola.c and sun3mmu.c
- */
-
-#include <linux/module.h>
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/swap.h>
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/types.h>
-#include <linux/init.h>
-#include <linux/bootmem.h>
-#include <linux/gfp.h>
-
-#include <asm/setup.h>
-#include <asm/uaccess.h>
-#include <asm/page.h>
-#include <asm/pgalloc.h>
-#include <asm/system.h>
-#include <asm/machdep.h>
-#include <asm/io.h>
-#ifdef CONFIG_ATARI
-#include <asm/atari_stram.h>
-#endif
-#include <asm/sections.h>
-#include <asm/tlb.h>
-
-DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
-
-pg_data_t pg_data_map[MAX_NUMNODES];
-EXPORT_SYMBOL(pg_data_map);
-
-int m68k_virt_to_node_shift;
-
-#ifndef CONFIG_SINGLE_MEMORY_CHUNK
-pg_data_t *pg_data_table[65];
-EXPORT_SYMBOL(pg_data_table);
-#endif
-
-void __init m68k_setup_node(int node)
-{
-#ifndef CONFIG_SINGLE_MEMORY_CHUNK
-	struct mem_info *info = m68k_memory + node;
-	int i, end;
-
-	i = (unsigned long)phys_to_virt(info->addr) >> __virt_to_node_shift();
-	end = (unsigned long)phys_to_virt(info->addr + info->size - 1) >> __virt_to_node_shift();
-	for (; i <= end; i++) {
-		if (pg_data_table[i])
-			printk("overlap at %u for chunk %u\n", i, node);
-		pg_data_table[i] = pg_data_map + node;
-	}
-#endif
-	pg_data_map[node].bdata = bootmem_node_data + node;
-	node_set_online(node);
-}
-
-
-/*
- * ZERO_PAGE is a special page that is used for zero-initialized
- * data and COW.
- */
-
-void *empty_zero_page;
-EXPORT_SYMBOL(empty_zero_page);
-
-extern void init_pointer_table(unsigned long ptable);
-
-/* References to section boundaries */
-
-extern pmd_t *zero_pgtable;
-
-void __init mem_init(void)
-{
-	pg_data_t *pgdat;
-	int codepages = 0;
-	int datapages = 0;
-	int initpages = 0;
-	int i;
-
-#ifdef CONFIG_ATARI
-	if (MACH_IS_ATARI)
-		atari_stram_mem_init_hook();
-#endif
-
-	/* this will put all memory onto the freelists */
-	totalram_pages = num_physpages = 0;
-	for_each_online_pgdat(pgdat) {
-		num_physpages += pgdat->node_present_pages;
-
-		totalram_pages += free_all_bootmem_node(pgdat);
-		for (i = 0; i < pgdat->node_spanned_pages; i++) {
-			struct page *page = pgdat->node_mem_map + i;
-			char *addr = page_to_virt(page);
-
-			if (!PageReserved(page))
-				continue;
-			if (addr >= _text &&
-			    addr < _etext)
-				codepages++;
-			else if (addr >= __init_begin &&
-				 addr < __init_end)
-				initpages++;
-			else
-				datapages++;
-		}
-	}
-
-#ifndef CONFIG_SUN3
-	/* insert pointer tables allocated so far into the tablelist */
-	init_pointer_table((unsigned long)kernel_pg_dir);
-	for (i = 0; i < PTRS_PER_PGD; i++) {
-		if (pgd_present(kernel_pg_dir[i]))
-			init_pointer_table(__pgd_page(kernel_pg_dir[i]));
-	}
-
-	/* insert also pointer table that we used to unmap the zero page */
-	if (zero_pgtable)
-		init_pointer_table((unsigned long)zero_pgtable);
-#endif
-
-	printk("Memory: %luk/%luk available (%dk kernel code, %dk data, %dk init)\n",
-	       nr_free_pages() << (PAGE_SHIFT-10),
-	       totalram_pages << (PAGE_SHIFT-10),
-	       codepages << (PAGE_SHIFT-10),
-	       datapages << (PAGE_SHIFT-10),
-	       initpages << (PAGE_SHIFT-10));
-}
-
-#ifdef CONFIG_BLK_DEV_INITRD
-void free_initrd_mem(unsigned long start, unsigned long end)
-{
-	int pages = 0;
-	for (; start < end; start += PAGE_SIZE) {
-		ClearPageReserved(virt_to_page(start));
-		init_page_count(virt_to_page(start));
-		free_page(start);
-		totalram_pages++;
-		pages++;
-	}
-	printk ("Freeing initrd memory: %dk freed\n", pages);
-}
+#ifdef CONFIG_MMU
+#include "init_mm.c"
+#else
+#include "init_no.c"
 #endif
diff --git a/arch/m68k/mm/init_mm.c b/arch/m68k/mm/init_mm.c
new file mode 100644
index 000000000000..8bc842554e5b
--- /dev/null
+++ b/arch/m68k/mm/init_mm.c
@@ -0,0 +1,150 @@
+/*
+ *  linux/arch/m68k/mm/init.c
+ *
+ *  Copyright (C) 1995  Hamish Macdonald
+ *
+ *  Contains common initialization routines, specific init code moved
+ *  to motorola.c and sun3mmu.c
+ */
+
+#include <linux/module.h>
+#include <linux/signal.h>
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/swap.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/bootmem.h>
+#include <linux/gfp.h>
+
+#include <asm/setup.h>
+#include <asm/uaccess.h>
+#include <asm/page.h>
+#include <asm/pgalloc.h>
+#include <asm/system.h>
+#include <asm/machdep.h>
+#include <asm/io.h>
+#ifdef CONFIG_ATARI
+#include <asm/atari_stram.h>
+#endif
+#include <asm/sections.h>
+#include <asm/tlb.h>
+
+DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
+
+pg_data_t pg_data_map[MAX_NUMNODES];
+EXPORT_SYMBOL(pg_data_map);
+
+int m68k_virt_to_node_shift;
+
+#ifndef CONFIG_SINGLE_MEMORY_CHUNK
+pg_data_t *pg_data_table[65];
+EXPORT_SYMBOL(pg_data_table);
+#endif
+
+void __init m68k_setup_node(int node)
+{
+#ifndef CONFIG_SINGLE_MEMORY_CHUNK
+	struct mem_info *info = m68k_memory + node;
+	int i, end;
+
+	i = (unsigned long)phys_to_virt(info->addr) >> __virt_to_node_shift();
+	end = (unsigned long)phys_to_virt(info->addr + info->size - 1) >> __virt_to_node_shift();
+	for (; i <= end; i++) {
+		if (pg_data_table[i])
+			printk("overlap at %u for chunk %u\n", i, node);
+		pg_data_table[i] = pg_data_map + node;
+	}
+#endif
+	pg_data_map[node].bdata = bootmem_node_data + node;
+	node_set_online(node);
+}
+
+
+/*
+ * ZERO_PAGE is a special page that is used for zero-initialized
+ * data and COW.
+ */
+
+void *empty_zero_page;
+EXPORT_SYMBOL(empty_zero_page);
+
+extern void init_pointer_table(unsigned long ptable);
+
+/* References to section boundaries */
+
+extern pmd_t *zero_pgtable;
+
+void __init mem_init(void)
+{
+	pg_data_t *pgdat;
+	int codepages = 0;
+	int datapages = 0;
+	int initpages = 0;
+	int i;
+
+#ifdef CONFIG_ATARI
+	if (MACH_IS_ATARI)
+		atari_stram_mem_init_hook();
+#endif
+
+	/* this will put all memory onto the freelists */
+	totalram_pages = num_physpages = 0;
+	for_each_online_pgdat(pgdat) {
+		num_physpages += pgdat->node_present_pages;
+
+		totalram_pages += free_all_bootmem_node(pgdat);
+		for (i = 0; i < pgdat->node_spanned_pages; i++) {
+			struct page *page = pgdat->node_mem_map + i;
+			char *addr = page_to_virt(page);
+
+			if (!PageReserved(page))
+				continue;
+			if (addr >= _text &&
+			    addr < _etext)
+				codepages++;
+			else if (addr >= __init_begin &&
+				 addr < __init_end)
+				initpages++;
+			else
+				datapages++;
+		}
+	}
+
+#ifndef CONFIG_SUN3
+	/* insert pointer tables allocated so far into the tablelist */
+	init_pointer_table((unsigned long)kernel_pg_dir);
+	for (i = 0; i < PTRS_PER_PGD; i++) {
+		if (pgd_present(kernel_pg_dir[i]))
+			init_pointer_table(__pgd_page(kernel_pg_dir[i]));
+	}
+
+	/* insert also pointer table that we used to unmap the zero page */
+	if (zero_pgtable)
+		init_pointer_table((unsigned long)zero_pgtable);
+#endif
+
+	printk("Memory: %luk/%luk available (%dk kernel code, %dk data, %dk init)\n",
+	       nr_free_pages() << (PAGE_SHIFT-10),
+	       totalram_pages << (PAGE_SHIFT-10),
+	       codepages << (PAGE_SHIFT-10),
+	       datapages << (PAGE_SHIFT-10),
+	       initpages << (PAGE_SHIFT-10));
+}
+
+#ifdef CONFIG_BLK_DEV_INITRD
+void free_initrd_mem(unsigned long start, unsigned long end)
+{
+	int pages = 0;
+	for (; start < end; start += PAGE_SIZE) {
+		ClearPageReserved(virt_to_page(start));
+		init_page_count(virt_to_page(start));
+		free_page(start);
+		totalram_pages++;
+		pages++;
+	}
+	printk ("Freeing initrd memory: %dk freed\n", pages);
+}
+#endif
diff --git a/arch/m68knommu/mm/init.c b/arch/m68k/mm/init_no.c
index 8a6653f56bd8..8a6653f56bd8 100644
--- a/arch/m68knommu/mm/init.c
+++ b/arch/m68k/mm/init_no.c
diff --git a/arch/m68k/mm/kmap.c b/arch/m68k/mm/kmap.c
index 69345849454b..a373d136b2b2 100644
--- a/arch/m68k/mm/kmap.c
+++ b/arch/m68k/mm/kmap.c
@@ -1,367 +1,5 @@
-/*
- *  linux/arch/m68k/mm/kmap.c
- *
- *  Copyright (C) 1997 Roman Hodek
- *
- *  10/01/99 cleaned up the code and changing to the same interface
- *	     used by other architectures		/Roman Zippel
- */
-
-#include <linux/module.h>
-#include <linux/mm.h>
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/types.h>
-#include <linux/slab.h>
-#include <linux/vmalloc.h>
-
-#include <asm/setup.h>
-#include <asm/segment.h>
-#include <asm/page.h>
-#include <asm/pgalloc.h>
-#include <asm/io.h>
-#include <asm/system.h>
-
-#undef DEBUG
-
-#define PTRTREESIZE	(256*1024)
-
-/*
- * For 040/060 we can use the virtual memory area like other architectures,
- * but for 020/030 we want to use early termination page descriptor and we
- * can't mix this with normal page descriptors, so we have to copy that code
- * (mm/vmalloc.c) and return appriorate aligned addresses.
- */
-
-#ifdef CPU_M68040_OR_M68060_ONLY
-
-#define IO_SIZE		PAGE_SIZE
-
-static inline struct vm_struct *get_io_area(unsigned long size)
-{
-	return get_vm_area(size, VM_IOREMAP);
-}
-
-
-static inline void free_io_area(void *addr)
-{
-	vfree((void *)(PAGE_MASK & (unsigned long)addr));
-}
-
+#ifdef CONFIG_MMU
+#include "kmap_mm.c"
 #else
-
-#define IO_SIZE		(256*1024)
-
-static struct vm_struct *iolist;
-
-static struct vm_struct *get_io_area(unsigned long size)
-{
-	unsigned long addr;
-	struct vm_struct **p, *tmp, *area;
-
-	area = kmalloc(sizeof(*area), GFP_KERNEL);
-	if (!area)
-		return NULL;
-	addr = KMAP_START;
-	for (p = &iolist; (tmp = *p) ; p = &tmp->next) {
-		if (size + addr < (unsigned long)tmp->addr)
-			break;
-		if (addr > KMAP_END-size) {
-			kfree(area);
-			return NULL;
-		}
-		addr = tmp->size + (unsigned long)tmp->addr;
-	}
-	area->addr = (void *)addr;
-	area->size = size + IO_SIZE;
-	area->next = *p;
-	*p = area;
-	return area;
-}
-
-static inline void free_io_area(void *addr)
-{
-	struct vm_struct **p, *tmp;
-
-	if (!addr)
-		return;
-	addr = (void *)((unsigned long)addr & -IO_SIZE);
-	for (p = &iolist ; (tmp = *p) ; p = &tmp->next) {
-		if (tmp->addr == addr) {
-			*p = tmp->next;
-			__iounmap(tmp->addr, tmp->size);
-			kfree(tmp);
-			return;
-		}
-	}
-}
-
+#include "kmap_no.c"
 #endif
-
-/*
- * Map some physical address range into the kernel address space.
- */
-/* Rewritten by Andreas Schwab to remove all races. */
-
-void __iomem *__ioremap(unsigned long physaddr, unsigned long size, int cacheflag)
-{
-	struct vm_struct *area;
-	unsigned long virtaddr, retaddr;
-	long offset;
-	pgd_t *pgd_dir;
-	pmd_t *pmd_dir;
-	pte_t *pte_dir;
-
-	/*
-	 * Don't allow mappings that wrap..
-	 */
-	if (!size || physaddr > (unsigned long)(-size))
-		return NULL;
-
-#ifdef CONFIG_AMIGA
-	if (MACH_IS_AMIGA) {
-		if ((physaddr >= 0x40000000) && (physaddr + size < 0x60000000)
-		    && (cacheflag == IOMAP_NOCACHE_SER))
-			return (void __iomem *)physaddr;
-	}
-#endif
-
-#ifdef DEBUG
-	printk("ioremap: 0x%lx,0x%lx(%d) - ", physaddr, size, cacheflag);
-#endif
-	/*
-	 * Mappings have to be aligned
-	 */
-	offset = physaddr & (IO_SIZE - 1);
-	physaddr &= -IO_SIZE;
-	size = (size + offset + IO_SIZE - 1) & -IO_SIZE;
-
-	/*
-	 * Ok, go for it..
-	 */
-	area = get_io_area(size);
-	if (!area)
-		return NULL;
-
-	virtaddr = (unsigned long)area->addr;
-	retaddr = virtaddr + offset;
-#ifdef DEBUG
-	printk("0x%lx,0x%lx,0x%lx", physaddr, virtaddr, retaddr);
-#endif
-
-	/*
-	 * add cache and table flags to physical address
-	 */
-	if (CPU_IS_040_OR_060) {
-		physaddr |= (_PAGE_PRESENT | _PAGE_GLOBAL040 |
-			     _PAGE_ACCESSED | _PAGE_DIRTY);
-		switch (cacheflag) {
-		case IOMAP_FULL_CACHING:
-			physaddr |= _PAGE_CACHE040;
-			break;
-		case IOMAP_NOCACHE_SER:
-		default:
-			physaddr |= _PAGE_NOCACHE_S;
-			break;
-		case IOMAP_NOCACHE_NONSER:
-			physaddr |= _PAGE_NOCACHE;
-			break;
-		case IOMAP_WRITETHROUGH:
-			physaddr |= _PAGE_CACHE040W;
-			break;
-		}
-	} else {
-		physaddr |= (_PAGE_PRESENT | _PAGE_ACCESSED | _PAGE_DIRTY);
-		switch (cacheflag) {
-		case IOMAP_NOCACHE_SER:
-		case IOMAP_NOCACHE_NONSER:
-		default:
-			physaddr |= _PAGE_NOCACHE030;
-			break;
-		case IOMAP_FULL_CACHING:
-		case IOMAP_WRITETHROUGH:
-			break;
-		}
-	}
-
-	while ((long)size > 0) {
-#ifdef DEBUG
-		if (!(virtaddr & (PTRTREESIZE-1)))
-			printk ("\npa=%#lx va=%#lx ", physaddr, virtaddr);
-#endif
-		pgd_dir = pgd_offset_k(virtaddr);
-		pmd_dir = pmd_alloc(&init_mm, pgd_dir, virtaddr);
-		if (!pmd_dir) {
-			printk("ioremap: no mem for pmd_dir\n");
-			return NULL;
-		}
-
-		if (CPU_IS_020_OR_030) {
-			pmd_dir->pmd[(virtaddr/PTRTREESIZE) & 15] = physaddr;
-			physaddr += PTRTREESIZE;
-			virtaddr += PTRTREESIZE;
-			size -= PTRTREESIZE;
-		} else {
-			pte_dir = pte_alloc_kernel(pmd_dir, virtaddr);
-			if (!pte_dir) {
-				printk("ioremap: no mem for pte_dir\n");
-				return NULL;
-			}
-
-			pte_val(*pte_dir) = physaddr;
-			virtaddr += PAGE_SIZE;
-			physaddr += PAGE_SIZE;
-			size -= PAGE_SIZE;
-		}
-	}
-#ifdef DEBUG
-	printk("\n");
-#endif
-	flush_tlb_all();
-
-	return (void __iomem *)retaddr;
-}
-EXPORT_SYMBOL(__ioremap);
-
-/*
- * Unmap a ioremap()ed region again
- */
-void iounmap(void __iomem *addr)
-{
-#ifdef CONFIG_AMIGA
-	if ((!MACH_IS_AMIGA) ||
-	    (((unsigned long)addr < 0x40000000) ||
-	     ((unsigned long)addr > 0x60000000)))
-			free_io_area((__force void *)addr);
-#else
-	free_io_area((__force void *)addr);
-#endif
-}
-EXPORT_SYMBOL(iounmap);
-
-/*
- * __iounmap unmaps nearly everything, so be careful
- * it doesn't free currently pointer/page tables anymore but it
- * wans't used anyway and might be added later.
- */
-void __iounmap(void *addr, unsigned long size)
-{
-	unsigned long virtaddr = (unsigned long)addr;
-	pgd_t *pgd_dir;
-	pmd_t *pmd_dir;
-	pte_t *pte_dir;
-
-	while ((long)size > 0) {
-		pgd_dir = pgd_offset_k(virtaddr);
-		if (pgd_bad(*pgd_dir)) {
-			printk("iounmap: bad pgd(%08lx)\n", pgd_val(*pgd_dir));
-			pgd_clear(pgd_dir);
-			return;
-		}
-		pmd_dir = pmd_offset(pgd_dir, virtaddr);
-
-		if (CPU_IS_020_OR_030) {
-			int pmd_off = (virtaddr/PTRTREESIZE) & 15;
-			int pmd_type = pmd_dir->pmd[pmd_off] & _DESCTYPE_MASK;
-
-			if (pmd_type == _PAGE_PRESENT) {
-				pmd_dir->pmd[pmd_off] = 0;
-				virtaddr += PTRTREESIZE;
-				size -= PTRTREESIZE;
-				continue;
-			} else if (pmd_type == 0)
-				continue;
-		}
-
-		if (pmd_bad(*pmd_dir)) {
-			printk("iounmap: bad pmd (%08lx)\n", pmd_val(*pmd_dir));
-			pmd_clear(pmd_dir);
-			return;
-		}
-		pte_dir = pte_offset_kernel(pmd_dir, virtaddr);
-
-		pte_val(*pte_dir) = 0;
-		virtaddr += PAGE_SIZE;
-		size -= PAGE_SIZE;
-	}
-
-	flush_tlb_all();
-}
-
-/*
- * Set new cache mode for some kernel address space.
- * The caller must push data for that range itself, if such data may already
- * be in the cache.
- */
-void kernel_set_cachemode(void *addr, unsigned long size, int cmode)
-{
-	unsigned long virtaddr = (unsigned long)addr;
-	pgd_t *pgd_dir;
-	pmd_t *pmd_dir;
-	pte_t *pte_dir;
-
-	if (CPU_IS_040_OR_060) {
-		switch (cmode) {
-		case IOMAP_FULL_CACHING:
-			cmode = _PAGE_CACHE040;
-			break;
-		case IOMAP_NOCACHE_SER:
-		default:
-			cmode = _PAGE_NOCACHE_S;
-			break;
-		case IOMAP_NOCACHE_NONSER:
-			cmode = _PAGE_NOCACHE;
-			break;
-		case IOMAP_WRITETHROUGH:
-			cmode = _PAGE_CACHE040W;
-			break;
-		}
-	} else {
-		switch (cmode) {
-		case IOMAP_NOCACHE_SER:
-		case IOMAP_NOCACHE_NONSER:
-		default:
-			cmode = _PAGE_NOCACHE030;
-			break;
-		case IOMAP_FULL_CACHING:
-		case IOMAP_WRITETHROUGH:
-			cmode = 0;
-		}
-	}
-
-	while ((long)size > 0) {
-		pgd_dir = pgd_offset_k(virtaddr);
-		if (pgd_bad(*pgd_dir)) {
-			printk("iocachemode: bad pgd(%08lx)\n", pgd_val(*pgd_dir));
-			pgd_clear(pgd_dir);
-			return;
-		}
-		pmd_dir = pmd_offset(pgd_dir, virtaddr);
-
-		if (CPU_IS_020_OR_030) {
-			int pmd_off = (virtaddr/PTRTREESIZE) & 15;
-
-			if ((pmd_dir->pmd[pmd_off] & _DESCTYPE_MASK) == _PAGE_PRESENT) {
-				pmd_dir->pmd[pmd_off] = (pmd_dir->pmd[pmd_off] &
-							 _CACHEMASK040) | cmode;
-				virtaddr += PTRTREESIZE;
-				size -= PTRTREESIZE;
-				continue;
-			}
-		}
-
-		if (pmd_bad(*pmd_dir)) {
-			printk("iocachemode: bad pmd (%08lx)\n", pmd_val(*pmd_dir));
-			pmd_clear(pmd_dir);
-			return;
-		}
-		pte_dir = pte_offset_kernel(pmd_dir, virtaddr);
-
-		pte_val(*pte_dir) = (pte_val(*pte_dir) & _CACHEMASK040) | cmode;
-		virtaddr += PAGE_SIZE;
-		size -= PAGE_SIZE;
-	}
-
-	flush_tlb_all();
-}
-EXPORT_SYMBOL(kernel_set_cachemode);
diff --git a/arch/m68k/mm/kmap_mm.c b/arch/m68k/mm/kmap_mm.c
new file mode 100644
index 000000000000..69345849454b
--- /dev/null
+++ b/arch/m68k/mm/kmap_mm.c
@@ -0,0 +1,367 @@
+/*
+ *  linux/arch/m68k/mm/kmap.c
+ *
+ *  Copyright (C) 1997 Roman Hodek
+ *
+ *  10/01/99 cleaned up the code and changing to the same interface
+ *	     used by other architectures		/Roman Zippel
+ */
+
+#include <linux/module.h>
+#include <linux/mm.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/types.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+
+#include <asm/setup.h>
+#include <asm/segment.h>
+#include <asm/page.h>
+#include <asm/pgalloc.h>
+#include <asm/io.h>
+#include <asm/system.h>
+
+#undef DEBUG
+
+#define PTRTREESIZE	(256*1024)
+
+/*
+ * For 040/060 we can use the virtual memory area like other architectures,
+ * but for 020/030 we want to use early termination page descriptor and we
+ * can't mix this with normal page descriptors, so we have to copy that code
+ * (mm/vmalloc.c) and return appriorate aligned addresses.
+ */
+
+#ifdef CPU_M68040_OR_M68060_ONLY
+
+#define IO_SIZE		PAGE_SIZE
+
+static inline struct vm_struct *get_io_area(unsigned long size)
+{
+	return get_vm_area(size, VM_IOREMAP);
+}
+
+
+static inline void free_io_area(void *addr)
+{
+	vfree((void *)(PAGE_MASK & (unsigned long)addr));
+}
+
+#else
+
+#define IO_SIZE		(256*1024)
+
+static struct vm_struct *iolist;
+
+static struct vm_struct *get_io_area(unsigned long size)
+{
+	unsigned long addr;
+	struct vm_struct **p, *tmp, *area;
+
+	area = kmalloc(sizeof(*area), GFP_KERNEL);
+	if (!area)
+		return NULL;
+	addr = KMAP_START;
+	for (p = &iolist; (tmp = *p) ; p = &tmp->next) {
+		if (size + addr < (unsigned long)tmp->addr)
+			break;
+		if (addr > KMAP_END-size) {
+			kfree(area);
+			return NULL;
+		}
+		addr = tmp->size + (unsigned long)tmp->addr;
+	}
+	area->addr = (void *)addr;
+	area->size = size + IO_SIZE;
+	area->next = *p;
+	*p = area;
+	return area;
+}
+
+static inline void free_io_area(void *addr)
+{
+	struct vm_struct **p, *tmp;
+
+	if (!addr)
+		return;
+	addr = (void *)((unsigned long)addr & -IO_SIZE);
+	for (p = &iolist ; (tmp = *p) ; p = &tmp->next) {
+		if (tmp->addr == addr) {
+			*p = tmp->next;
+			__iounmap(tmp->addr, tmp->size);
+			kfree(tmp);
+			return;
+		}
+	}
+}
+
+#endif
+
+/*
+ * Map some physical address range into the kernel address space.
+ */
+/* Rewritten by Andreas Schwab to remove all races. */
+
+void __iomem *__ioremap(unsigned long physaddr, unsigned long size, int cacheflag)
+{
+	struct vm_struct *area;
+	unsigned long virtaddr, retaddr;
+	long offset;
+	pgd_t *pgd_dir;
+	pmd_t *pmd_dir;
+	pte_t *pte_dir;
+
+	/*
+	 * Don't allow mappings that wrap..
+	 */
+	if (!size || physaddr > (unsigned long)(-size))
+		return NULL;
+
+#ifdef CONFIG_AMIGA
+	if (MACH_IS_AMIGA) {
+		if ((physaddr >= 0x40000000) && (physaddr + size < 0x60000000)
+		    && (cacheflag == IOMAP_NOCACHE_SER))
+			return (void __iomem *)physaddr;
+	}
+#endif
+
+#ifdef DEBUG
+	printk("ioremap: 0x%lx,0x%lx(%d) - ", physaddr, size, cacheflag);
+#endif
+	/*
+	 * Mappings have to be aligned
+	 */
+	offset = physaddr & (IO_SIZE - 1);
+	physaddr &= -IO_SIZE;
+	size = (size + offset + IO_SIZE - 1) & -IO_SIZE;
+
+	/*
+	 * Ok, go for it..
+	 */
+	area = get_io_area(size);
+	if (!area)
+		return NULL;
+
+	virtaddr = (unsigned long)area->addr;
+	retaddr = virtaddr + offset;
+#ifdef DEBUG
+	printk("0x%lx,0x%lx,0x%lx", physaddr, virtaddr, retaddr);
+#endif
+
+	/*
+	 * add cache and table flags to physical address
+	 */
+	if (CPU_IS_040_OR_060) {
+		physaddr |= (_PAGE_PRESENT | _PAGE_GLOBAL040 |
+			     _PAGE_ACCESSED | _PAGE_DIRTY);
+		switch (cacheflag) {
+		case IOMAP_FULL_CACHING:
+			physaddr |= _PAGE_CACHE040;
+			break;
+		case IOMAP_NOCACHE_SER:
+		default:
+			physaddr |= _PAGE_NOCACHE_S;
+			break;
+		case IOMAP_NOCACHE_NONSER:
+			physaddr |= _PAGE_NOCACHE;
+			break;
+		case IOMAP_WRITETHROUGH:
+			physaddr |= _PAGE_CACHE040W;
+			break;
+		}
+	} else {
+		physaddr |= (_PAGE_PRESENT | _PAGE_ACCESSED | _PAGE_DIRTY);
+		switch (cacheflag) {
+		case IOMAP_NOCACHE_SER:
+		case IOMAP_NOCACHE_NONSER:
+		default:
+			physaddr |= _PAGE_NOCACHE030;
+			break;
+		case IOMAP_FULL_CACHING:
+		case IOMAP_WRITETHROUGH:
+			break;
+		}
+	}
+
+	while ((long)size > 0) {
+#ifdef DEBUG
+		if (!(virtaddr & (PTRTREESIZE-1)))
+			printk ("\npa=%#lx va=%#lx ", physaddr, virtaddr);
+#endif
+		pgd_dir = pgd_offset_k(virtaddr);
+		pmd_dir = pmd_alloc(&init_mm, pgd_dir, virtaddr);
+		if (!pmd_dir) {
+			printk("ioremap: no mem for pmd_dir\n");
+			return NULL;
+		}
+
+		if (CPU_IS_020_OR_030) {
+			pmd_dir->pmd[(virtaddr/PTRTREESIZE) & 15] = physaddr;
+			physaddr += PTRTREESIZE;
+			virtaddr += PTRTREESIZE;
+			size -= PTRTREESIZE;
+		} else {
+			pte_dir = pte_alloc_kernel(pmd_dir, virtaddr);
+			if (!pte_dir) {
+				printk("ioremap: no mem for pte_dir\n");
+				return NULL;
+			}
+
+			pte_val(*pte_dir) = physaddr;
+			virtaddr += PAGE_SIZE;
+			physaddr += PAGE_SIZE;
+			size -= PAGE_SIZE;
+		}
+	}
+#ifdef DEBUG
+	printk("\n");
+#endif
+	flush_tlb_all();
+
+	return (void __iomem *)retaddr;
+}
+EXPORT_SYMBOL(__ioremap);
+
+/*
+ * Unmap a ioremap()ed region again
+ */
+void iounmap(void __iomem *addr)
+{
+#ifdef CONFIG_AMIGA
+	if ((!MACH_IS_AMIGA) ||
+	    (((unsigned long)addr < 0x40000000) ||
+	     ((unsigned long)addr > 0x60000000)))
+			free_io_area((__force void *)addr);
+#else
+	free_io_area((__force void *)addr);
+#endif
+}
+EXPORT_SYMBOL(iounmap);
+
+/*
+ * __iounmap unmaps nearly everything, so be careful
+ * it doesn't free currently pointer/page tables anymore but it
+ * wans't used anyway and might be added later.
+ */
+void __iounmap(void *addr, unsigned long size)
+{
+	unsigned long virtaddr = (unsigned long)addr;
+	pgd_t *pgd_dir;
+	pmd_t *pmd_dir;
+	pte_t *pte_dir;
+
+	while ((long)size > 0) {
+		pgd_dir = pgd_offset_k(virtaddr);
+		if (pgd_bad(*pgd_dir)) {
+			printk("iounmap: bad pgd(%08lx)\n", pgd_val(*pgd_dir));
+			pgd_clear(pgd_dir);
+			return;
+		}
+		pmd_dir = pmd_offset(pgd_dir, virtaddr);
+
+		if (CPU_IS_020_OR_030) {
+			int pmd_off = (virtaddr/PTRTREESIZE) & 15;
+			int pmd_type = pmd_dir->pmd[pmd_off] & _DESCTYPE_MASK;
+
+			if (pmd_type == _PAGE_PRESENT) {
+				pmd_dir->pmd[pmd_off] = 0;
+				virtaddr += PTRTREESIZE;
+				size -= PTRTREESIZE;
+				continue;
+			} else if (pmd_type == 0)
+				continue;
+		}
+
+		if (pmd_bad(*pmd_dir)) {
+			printk("iounmap: bad pmd (%08lx)\n", pmd_val(*pmd_dir));
+			pmd_clear(pmd_dir);
+			return;
+		}
+		pte_dir = pte_offset_kernel(pmd_dir, virtaddr);
+
+		pte_val(*pte_dir) = 0;
+		virtaddr += PAGE_SIZE;
+		size -= PAGE_SIZE;
+	}
+
+	flush_tlb_all();
+}
+
+/*
+ * Set new cache mode for some kernel address space.
+ * The caller must push data for that range itself, if such data may already
+ * be in the cache.
+ */
+void kernel_set_cachemode(void *addr, unsigned long size, int cmode)
+{
+	unsigned long virtaddr = (unsigned long)addr;
+	pgd_t *pgd_dir;
+	pmd_t *pmd_dir;
+	pte_t *pte_dir;
+
+	if (CPU_IS_040_OR_060) {
+		switch (cmode) {
+		case IOMAP_FULL_CACHING:
+			cmode = _PAGE_CACHE040;
+			break;
+		case IOMAP_NOCACHE_SER:
+		default:
+			cmode = _PAGE_NOCACHE_S;
+			break;
+		case IOMAP_NOCACHE_NONSER:
+			cmode = _PAGE_NOCACHE;
+			break;
+		case IOMAP_WRITETHROUGH:
+			cmode = _PAGE_CACHE040W;
+			break;
+		}
+	} else {
+		switch (cmode) {
+		case IOMAP_NOCACHE_SER:
+		case IOMAP_NOCACHE_NONSER:
+		default:
+			cmode = _PAGE_NOCACHE030;
+			break;
+		case IOMAP_FULL_CACHING:
+		case IOMAP_WRITETHROUGH:
+			cmode = 0;
+		}
+	}
+
+	while ((long)size > 0) {
+		pgd_dir = pgd_offset_k(virtaddr);
+		if (pgd_bad(*pgd_dir)) {
+			printk("iocachemode: bad pgd(%08lx)\n", pgd_val(*pgd_dir));
+			pgd_clear(pgd_dir);
+			return;
+		}
+		pmd_dir = pmd_offset(pgd_dir, virtaddr);
+
+		if (CPU_IS_020_OR_030) {
+			int pmd_off = (virtaddr/PTRTREESIZE) & 15;
+
+			if ((pmd_dir->pmd[pmd_off] & _DESCTYPE_MASK) == _PAGE_PRESENT) {
+				pmd_dir->pmd[pmd_off] = (pmd_dir->pmd[pmd_off] &
+							 _CACHEMASK040) | cmode;
+				virtaddr += PTRTREESIZE;
+				size -= PTRTREESIZE;
+				continue;
+			}
+		}
+
+		if (pmd_bad(*pmd_dir)) {
+			printk("iocachemode: bad pmd (%08lx)\n", pmd_val(*pmd_dir));
+			pmd_clear(pmd_dir);
+			return;
+		}
+		pte_dir = pte_offset_kernel(pmd_dir, virtaddr);
+
+		pte_val(*pte_dir) = (pte_val(*pte_dir) & _CACHEMASK040) | cmode;
+		virtaddr += PAGE_SIZE;
+		size -= PAGE_SIZE;
+	}
+
+	flush_tlb_all();
+}
+EXPORT_SYMBOL(kernel_set_cachemode);
diff --git a/arch/m68knommu/mm/kmap.c b/arch/m68k/mm/kmap_no.c
index ece8d5ad4e6c..ece8d5ad4e6c 100644
--- a/arch/m68knommu/mm/kmap.c
+++ b/arch/m68k/mm/kmap_no.c
diff --git a/arch/m68knommu/platform/5206/Makefile b/arch/m68k/platform/5206/Makefile
index b5db05625cfa..b5db05625cfa 100644
--- a/arch/m68knommu/platform/5206/Makefile
+++ b/arch/m68k/platform/5206/Makefile
diff --git a/arch/m68knommu/platform/5206/config.c b/arch/m68k/platform/5206/config.c
index 9c335465e66d..9c335465e66d 100644
--- a/arch/m68knommu/platform/5206/config.c
+++ b/arch/m68k/platform/5206/config.c
diff --git a/arch/m68knommu/platform/5206/gpio.c b/arch/m68k/platform/5206/gpio.c
index b9ab4a120f28..b9ab4a120f28 100644
--- a/arch/m68knommu/platform/5206/gpio.c
+++ b/arch/m68k/platform/5206/gpio.c
diff --git a/arch/m68knommu/platform/5206e/Makefile b/arch/m68k/platform/5206e/Makefile
index b5db05625cfa..b5db05625cfa 100644
--- a/arch/m68knommu/platform/5206e/Makefile
+++ b/arch/m68k/platform/5206e/Makefile
diff --git a/arch/m68knommu/platform/5206e/config.c b/arch/m68k/platform/5206e/config.c
index 942397984c66..942397984c66 100644
--- a/arch/m68knommu/platform/5206e/config.c
+++ b/arch/m68k/platform/5206e/config.c
diff --git a/arch/m68knommu/platform/5206e/gpio.c b/arch/m68k/platform/5206e/gpio.c
index b9ab4a120f28..b9ab4a120f28 100644
--- a/arch/m68knommu/platform/5206e/gpio.c
+++ b/arch/m68k/platform/5206e/gpio.c
diff --git a/arch/m68knommu/platform/520x/Makefile b/arch/m68k/platform/520x/Makefile
index ad3f4e5a57ce..ad3f4e5a57ce 100644
--- a/arch/m68knommu/platform/520x/Makefile
+++ b/arch/m68k/platform/520x/Makefile
diff --git a/arch/m68knommu/platform/520x/config.c b/arch/m68k/platform/520x/config.c
index 621238f1a219..621238f1a219 100644
--- a/arch/m68knommu/platform/520x/config.c
+++ b/arch/m68k/platform/520x/config.c
diff --git a/arch/m68knommu/platform/520x/gpio.c b/arch/m68k/platform/520x/gpio.c
index d757328563d1..d757328563d1 100644
--- a/arch/m68knommu/platform/520x/gpio.c
+++ b/arch/m68k/platform/520x/gpio.c
diff --git a/arch/m68knommu/platform/523x/Makefile b/arch/m68k/platform/523x/Makefile
index c04b8f71c88c..c04b8f71c88c 100644
--- a/arch/m68knommu/platform/523x/Makefile
+++ b/arch/m68k/platform/523x/Makefile
diff --git a/arch/m68knommu/platform/523x/config.c b/arch/m68k/platform/523x/config.c
index 418a76feb1e3..71f4436ec809 100644
--- a/arch/m68knommu/platform/523x/config.c
+++ b/arch/m68k/platform/523x/config.c
@@ -3,7 +3,7 @@
 /*
  *	linux/arch/m68knommu/platform/523x/config.c
  *
- *	Sub-architcture dependant initialization code for the Freescale
+ *	Sub-architcture dependent initialization code for the Freescale
  *	523x CPUs.
  *
  *	Copyright (C) 1999-2005, Greg Ungerer (gerg@snapgear.com)
diff --git a/arch/m68knommu/platform/523x/gpio.c b/arch/m68k/platform/523x/gpio.c
index 327ebf142c8e..327ebf142c8e 100644
--- a/arch/m68knommu/platform/523x/gpio.c
+++ b/arch/m68k/platform/523x/gpio.c
diff --git a/arch/m68knommu/platform/5249/Makefile b/arch/m68k/platform/5249/Makefile
index 4bed30fd0073..4bed30fd0073 100644
--- a/arch/m68knommu/platform/5249/Makefile
+++ b/arch/m68k/platform/5249/Makefile
diff --git a/arch/m68knommu/platform/5249/config.c b/arch/m68k/platform/5249/config.c
index ceb31e5744a6..ceb31e5744a6 100644
--- a/arch/m68knommu/platform/5249/config.c
+++ b/arch/m68k/platform/5249/config.c
diff --git a/arch/m68knommu/platform/5249/gpio.c b/arch/m68k/platform/5249/gpio.c
index 2b56c6ef65bf..2b56c6ef65bf 100644
--- a/arch/m68knommu/platform/5249/gpio.c
+++ b/arch/m68k/platform/5249/gpio.c
diff --git a/arch/m68knommu/platform/5249/intc2.c b/arch/m68k/platform/5249/intc2.c
index 8f4b63e17366..f343bf7bf5b0 100644
--- a/arch/m68knommu/platform/5249/intc2.c
+++ b/arch/m68k/platform/5249/intc2.c
@@ -51,8 +51,8 @@ static int __init mcf_intc2_init(void)
 
 	/* GPIO interrupt sources */
 	for (irq = MCFINTC2_GPIOIRQ0; (irq <= MCFINTC2_GPIOIRQ7); irq++) {
-		set_irq_chip(irq, &intc2_irq_gpio_chip);
-		set_irq_handler(irq, handle_edge_irq);
+		irq_set_chip(irq, &intc2_irq_gpio_chip);
+		irq_set_handler(irq, handle_edge_irq);
 	}
 
 	return 0;
diff --git a/arch/m68knommu/platform/5272/Makefile b/arch/m68k/platform/5272/Makefile
index 34110fc14301..34110fc14301 100644
--- a/arch/m68knommu/platform/5272/Makefile
+++ b/arch/m68k/platform/5272/Makefile
diff --git a/arch/m68knommu/platform/5272/config.c b/arch/m68k/platform/5272/config.c
index 65bb582734e1..65bb582734e1 100644
--- a/arch/m68knommu/platform/5272/config.c
+++ b/arch/m68k/platform/5272/config.c
diff --git a/arch/m68knommu/platform/5272/gpio.c b/arch/m68k/platform/5272/gpio.c
index 57ac10a5d7f7..57ac10a5d7f7 100644
--- a/arch/m68knommu/platform/5272/gpio.c
+++ b/arch/m68k/platform/5272/gpio.c
diff --git a/arch/m68knommu/platform/5272/intc.c b/arch/m68k/platform/5272/intc.c
index 969ff0a467c6..7e715dfe2819 100644
--- a/arch/m68knommu/platform/5272/intc.c
+++ b/arch/m68k/platform/5272/intc.c
@@ -33,7 +33,7 @@
  *
  * Note that the external interrupts are edge triggered (unlike the
  * internal interrupt sources which are level triggered). Which means
- * they also need acknowledgeing via acknowledge bits.
+ * they also need acknowledging via acknowledge bits.
  */
 struct irqmap {
 	unsigned char	icr;
@@ -145,7 +145,7 @@ static int intc_irq_set_type(struct irq_data *d, unsigned int type)
  */
 static void intc_external_irq(unsigned int irq, struct irq_desc *desc)
 {
-	get_irq_desc_chip(desc)->irq_ack(&desc->irq_data);
+	irq_desc_get_chip(desc)->irq_ack(&desc->irq_data);
 	handle_simple_irq(irq, desc);
 }
 
@@ -171,16 +171,16 @@ void __init init_IRQ(void)
 	writel(0x88888888, MCF_MBAR + MCFSIM_ICR4);
 
 	for (irq = 0; (irq < NR_IRQS); irq++) {
-		set_irq_chip(irq, &intc_irq_chip);
+		irq_set_chip(irq, &intc_irq_chip);
 		edge = 0;
 		if ((irq >= MCFINT_VECBASE) && (irq <= MCFINT_VECMAX))
 			edge = intc_irqmap[irq - MCFINT_VECBASE].ack;
 		if (edge) {
-			set_irq_type(irq, IRQ_TYPE_EDGE_RISING);
-			set_irq_handler(irq, intc_external_irq);
+			irq_set_irq_type(irq, IRQ_TYPE_EDGE_RISING);
+			irq_set_handler(irq, intc_external_irq);
 		} else {
-			set_irq_type(irq, IRQ_TYPE_LEVEL_HIGH);
-			set_irq_handler(irq, handle_level_irq);
+			irq_set_irq_type(irq, IRQ_TYPE_LEVEL_HIGH);
+			irq_set_handler(irq, handle_level_irq);
 		}
 	}
 }
diff --git a/arch/m68knommu/platform/527x/Makefile b/arch/m68k/platform/527x/Makefile
index 6ac4b57370ea..6ac4b57370ea 100644
--- a/arch/m68knommu/platform/527x/Makefile
+++ b/arch/m68k/platform/527x/Makefile
diff --git a/arch/m68knommu/platform/527x/config.c b/arch/m68k/platform/527x/config.c
index fa359593b613..3ebc769cefda 100644
--- a/arch/m68knommu/platform/527x/config.c
+++ b/arch/m68k/platform/527x/config.c
@@ -3,7 +3,7 @@
 /*
  *	linux/arch/m68knommu/platform/527x/config.c
  *
- *	Sub-architcture dependant initialization code for the Freescale
+ *	Sub-architcture dependent initialization code for the Freescale
  *	5270/5271 CPUs.
  *
  *	Copyright (C) 1999-2004, Greg Ungerer (gerg@snapgear.com)
diff --git a/arch/m68knommu/platform/527x/gpio.c b/arch/m68k/platform/527x/gpio.c
index 205da0aa0f2d..205da0aa0f2d 100644
--- a/arch/m68knommu/platform/527x/gpio.c
+++ b/arch/m68k/platform/527x/gpio.c
diff --git a/arch/m68knommu/platform/528x/Makefile b/arch/m68k/platform/528x/Makefile
index 6ac4b57370ea..6ac4b57370ea 100644
--- a/arch/m68knommu/platform/528x/Makefile
+++ b/arch/m68k/platform/528x/Makefile
diff --git a/arch/m68knommu/platform/528x/config.c b/arch/m68k/platform/528x/config.c
index ac39fc661219..7abe77a2f3e3 100644
--- a/arch/m68knommu/platform/528x/config.c
+++ b/arch/m68k/platform/528x/config.c
@@ -3,7 +3,7 @@
 /*
  *	linux/arch/m68knommu/platform/528x/config.c
  *
- *	Sub-architcture dependant initialization code for the Freescale
+ *	Sub-architcture dependent initialization code for the Freescale
  *	5280, 5281 and 5282 CPUs.
  *
  *	Copyright (C) 1999-2003, Greg Ungerer (gerg@snapgear.com)
diff --git a/arch/m68knommu/platform/528x/gpio.c b/arch/m68k/platform/528x/gpio.c
index 526db665d87e..526db665d87e 100644
--- a/arch/m68knommu/platform/528x/gpio.c
+++ b/arch/m68k/platform/528x/gpio.c
diff --git a/arch/m68knommu/platform/5307/Makefile b/arch/m68k/platform/5307/Makefile
index d4293b791f2e..d4293b791f2e 100644
--- a/arch/m68knommu/platform/5307/Makefile
+++ b/arch/m68k/platform/5307/Makefile
diff --git a/arch/m68knommu/platform/5307/config.c b/arch/m68k/platform/5307/config.c
index 00900ac06a9c..00900ac06a9c 100644
--- a/arch/m68knommu/platform/5307/config.c
+++ b/arch/m68k/platform/5307/config.c
diff --git a/arch/m68knommu/platform/5307/gpio.c b/arch/m68k/platform/5307/gpio.c
index 5850612b4a38..5850612b4a38 100644
--- a/arch/m68knommu/platform/5307/gpio.c
+++ b/arch/m68k/platform/5307/gpio.c
diff --git a/arch/m68knommu/platform/5307/nettel.c b/arch/m68k/platform/5307/nettel.c
index e925ea4602f8..e925ea4602f8 100644
--- a/arch/m68knommu/platform/5307/nettel.c
+++ b/arch/m68k/platform/5307/nettel.c
diff --git a/arch/m68knommu/platform/532x/Makefile b/arch/m68k/platform/532x/Makefile
index ce01669399c6..ce01669399c6 100644
--- a/arch/m68knommu/platform/532x/Makefile
+++ b/arch/m68k/platform/532x/Makefile
diff --git a/arch/m68knommu/platform/532x/config.c b/arch/m68k/platform/532x/config.c
index ca51323f957b..ca51323f957b 100644
--- a/arch/m68knommu/platform/532x/config.c
+++ b/arch/m68k/platform/532x/config.c
diff --git a/arch/m68knommu/platform/532x/gpio.c b/arch/m68k/platform/532x/gpio.c
index 212a85deac90..212a85deac90 100644
--- a/arch/m68knommu/platform/532x/gpio.c
+++ b/arch/m68k/platform/532x/gpio.c
diff --git a/arch/m68knommu/platform/5407/Makefile b/arch/m68k/platform/5407/Makefile
index e83fe148eddc..e83fe148eddc 100644
--- a/arch/m68knommu/platform/5407/Makefile
+++ b/arch/m68k/platform/5407/Makefile
diff --git a/arch/m68knommu/platform/5407/config.c b/arch/m68k/platform/5407/config.c
index 70ea789a400c..70ea789a400c 100644
--- a/arch/m68knommu/platform/5407/config.c
+++ b/arch/m68k/platform/5407/config.c
diff --git a/arch/m68knommu/platform/5407/gpio.c b/arch/m68k/platform/5407/gpio.c
index 5850612b4a38..5850612b4a38 100644
--- a/arch/m68knommu/platform/5407/gpio.c
+++ b/arch/m68k/platform/5407/gpio.c
diff --git a/arch/m68knommu/platform/54xx/Makefile b/arch/m68k/platform/54xx/Makefile
index 6cfd090ec3cd..6cfd090ec3cd 100644
--- a/arch/m68knommu/platform/54xx/Makefile
+++ b/arch/m68k/platform/54xx/Makefile
diff --git a/arch/m68knommu/platform/54xx/config.c b/arch/m68k/platform/54xx/config.c
index 78130984db95..78130984db95 100644
--- a/arch/m68knommu/platform/54xx/config.c
+++ b/arch/m68k/platform/54xx/config.c
diff --git a/arch/m68knommu/platform/54xx/firebee.c b/arch/m68k/platform/54xx/firebee.c
index 46d50534f981..46d50534f981 100644
--- a/arch/m68knommu/platform/54xx/firebee.c
+++ b/arch/m68k/platform/54xx/firebee.c
diff --git a/arch/m68knommu/platform/68328/Makefile b/arch/m68k/platform/68328/Makefile
index 5e5435552d56..5e5435552d56 100644
--- a/arch/m68knommu/platform/68328/Makefile
+++ b/arch/m68k/platform/68328/Makefile
diff --git a/arch/m68knommu/platform/68328/bootlogo.h b/arch/m68k/platform/68328/bootlogo.h
index 67bc2c17386e..67bc2c17386e 100644
--- a/arch/m68knommu/platform/68328/bootlogo.h
+++ b/arch/m68k/platform/68328/bootlogo.h
diff --git a/arch/m68knommu/platform/68328/bootlogo.pl b/arch/m68k/platform/68328/bootlogo.pl
index b04ae3f50da5..b04ae3f50da5 100644
--- a/arch/m68knommu/platform/68328/bootlogo.pl
+++ b/arch/m68k/platform/68328/bootlogo.pl
diff --git a/arch/m68knommu/platform/68328/config.c b/arch/m68k/platform/68328/config.c
index a7bd21deb00f..a7bd21deb00f 100644
--- a/arch/m68knommu/platform/68328/config.c
+++ b/arch/m68k/platform/68328/config.c
diff --git a/arch/m68knommu/platform/68328/entry.S b/arch/m68k/platform/68328/entry.S
index 676960cf022a..676960cf022a 100644
--- a/arch/m68knommu/platform/68328/entry.S
+++ b/arch/m68k/platform/68328/entry.S
diff --git a/arch/m68knommu/platform/68328/head-de2.S b/arch/m68k/platform/68328/head-de2.S
index f632fdcb93e9..f632fdcb93e9 100644
--- a/arch/m68knommu/platform/68328/head-de2.S
+++ b/arch/m68k/platform/68328/head-de2.S
diff --git a/arch/m68knommu/platform/68328/head-pilot.S b/arch/m68k/platform/68328/head-pilot.S
index aecff532b343..aecff532b343 100644
--- a/arch/m68knommu/platform/68328/head-pilot.S
+++ b/arch/m68k/platform/68328/head-pilot.S
diff --git a/arch/m68knommu/platform/68328/head-ram.S b/arch/m68k/platform/68328/head-ram.S
index 7f1aeeacb219..7f1aeeacb219 100644
--- a/arch/m68knommu/platform/68328/head-ram.S
+++ b/arch/m68k/platform/68328/head-ram.S
diff --git a/arch/m68knommu/platform/68328/head-rom.S b/arch/m68k/platform/68328/head-rom.S
index 6ec77d3ea0b3..6ec77d3ea0b3 100644
--- a/arch/m68knommu/platform/68328/head-rom.S
+++ b/arch/m68k/platform/68328/head-rom.S
diff --git a/arch/m68knommu/platform/68328/ints.c b/arch/m68k/platform/68328/ints.c
index e5631831a200..a90288cf7446 100644
--- a/arch/m68knommu/platform/68328/ints.c
+++ b/arch/m68k/platform/68328/ints.c
@@ -179,8 +179,8 @@ void __init init_IRQ(void)
 	IMR = ~0;
 
 	for (i = 0; (i < NR_IRQS); i++) {
-		set_irq_chip(i, &intc_irq_chip);
-		set_irq_handler(i, handle_level_irq);
+		irq_set_chip(i, &intc_irq_chip);
+		irq_set_handler(i, handle_level_irq);
 	}
 }
 
diff --git a/arch/m68knommu/platform/68328/romvec.S b/arch/m68k/platform/68328/romvec.S
index 31084466eae8..31084466eae8 100644
--- a/arch/m68knommu/platform/68328/romvec.S
+++ b/arch/m68k/platform/68328/romvec.S
diff --git a/arch/m68knommu/platform/68328/timers.c b/arch/m68k/platform/68328/timers.c
index 309f725995bf..309f725995bf 100644
--- a/arch/m68knommu/platform/68328/timers.c
+++ b/arch/m68k/platform/68328/timers.c
diff --git a/arch/m68knommu/platform/68360/Makefile b/arch/m68k/platform/68360/Makefile
index cf5af73a5789..cf5af73a5789 100644
--- a/arch/m68knommu/platform/68360/Makefile
+++ b/arch/m68k/platform/68360/Makefile
diff --git a/arch/m68knommu/platform/68360/commproc.c b/arch/m68k/platform/68360/commproc.c
index 8e4e10cc0080..8e4e10cc0080 100644
--- a/arch/m68knommu/platform/68360/commproc.c
+++ b/arch/m68k/platform/68360/commproc.c
diff --git a/arch/m68knommu/platform/68360/config.c b/arch/m68k/platform/68360/config.c
index 9dd5bca38749..9dd5bca38749 100644
--- a/arch/m68knommu/platform/68360/config.c
+++ b/arch/m68k/platform/68360/config.c
diff --git a/arch/m68knommu/platform/68360/entry.S b/arch/m68k/platform/68360/entry.S
index 46c1b18c9dcb..46c1b18c9dcb 100644
--- a/arch/m68knommu/platform/68360/entry.S
+++ b/arch/m68k/platform/68360/entry.S
diff --git a/arch/m68knommu/platform/68360/head-ram.S b/arch/m68k/platform/68360/head-ram.S
index 8eb94fb6b971..8eb94fb6b971 100644
--- a/arch/m68knommu/platform/68360/head-ram.S
+++ b/arch/m68k/platform/68360/head-ram.S
diff --git a/arch/m68knommu/platform/68360/head-rom.S b/arch/m68k/platform/68360/head-rom.S
index 97510e55b802..97510e55b802 100644
--- a/arch/m68knommu/platform/68360/head-rom.S
+++ b/arch/m68k/platform/68360/head-rom.S
diff --git a/arch/m68knommu/platform/68360/ints.c b/arch/m68k/platform/68360/ints.c
index 8de3feb568c6..4af0f4e30f74 100644
--- a/arch/m68knommu/platform/68360/ints.c
+++ b/arch/m68k/platform/68360/ints.c
@@ -132,8 +132,8 @@ void init_IRQ(void)
 	pquicc->intr_cimr = 0x00000000;
 
 	for (i = 0; (i < NR_IRQS); i++) {
-		set_irq_chip(i, &intc_irq_chip);
-		set_irq_handler(i, handle_level_irq);
+		irq_set_chip(i, &intc_irq_chip);
+		irq_set_handler(i, handle_level_irq);
 	}
 }
 
diff --git a/arch/m68knommu/platform/68EZ328/Makefile b/arch/m68k/platform/68EZ328/Makefile
index ee97735a242c..ee97735a242c 100644
--- a/arch/m68knommu/platform/68EZ328/Makefile
+++ b/arch/m68k/platform/68EZ328/Makefile
diff --git a/arch/m68knommu/platform/68EZ328/bootlogo.h b/arch/m68k/platform/68EZ328/bootlogo.h
index e842bdae5839..e842bdae5839 100644
--- a/arch/m68knommu/platform/68EZ328/bootlogo.h
+++ b/arch/m68k/platform/68EZ328/bootlogo.h
diff --git a/arch/m68knommu/platform/68EZ328/config.c b/arch/m68k/platform/68EZ328/config.c
index 1be1a16f6896..1be1a16f6896 100644
--- a/arch/m68knommu/platform/68EZ328/config.c
+++ b/arch/m68k/platform/68EZ328/config.c
diff --git a/arch/m68knommu/platform/68VZ328/Makefile b/arch/m68k/platform/68VZ328/Makefile
index 447ffa0fd7c7..447ffa0fd7c7 100644
--- a/arch/m68knommu/platform/68VZ328/Makefile
+++ b/arch/m68k/platform/68VZ328/Makefile
diff --git a/arch/m68knommu/platform/68VZ328/config.c b/arch/m68k/platform/68VZ328/config.c
index eabaabe8af36..eabaabe8af36 100644
--- a/arch/m68knommu/platform/68VZ328/config.c
+++ b/arch/m68k/platform/68VZ328/config.c
diff --git a/arch/m68knommu/platform/Makefile b/arch/m68k/platform/Makefile
index fc932bf65d34..fc932bf65d34 100644
--- a/arch/m68knommu/platform/Makefile
+++ b/arch/m68k/platform/Makefile
diff --git a/arch/m68knommu/platform/coldfire/Makefile b/arch/m68k/platform/coldfire/Makefile
index a8967baabd72..a8967baabd72 100644
--- a/arch/m68knommu/platform/coldfire/Makefile
+++ b/arch/m68k/platform/coldfire/Makefile
diff --git a/arch/m68knommu/platform/coldfire/cache.c b/arch/m68k/platform/coldfire/cache.c
index 235d3c4f4f0f..71beeaf0c5c4 100644
--- a/arch/m68knommu/platform/coldfire/cache.c
+++ b/arch/m68k/platform/coldfire/cache.c
@@ -1,7 +1,7 @@
 /***************************************************************************/
 
 /*
- *	cache.c -- general ColdFire Cache maintainence code
+ *	cache.c -- general ColdFire Cache maintenance code
  *
  *	Copyright (C) 2010, Greg Ungerer (gerg@snapgear.com)
  */
diff --git a/arch/m68knommu/platform/coldfire/clk.c b/arch/m68k/platform/coldfire/clk.c
index 9f1260c5e2ad..9f1260c5e2ad 100644
--- a/arch/m68knommu/platform/coldfire/clk.c
+++ b/arch/m68k/platform/coldfire/clk.c
diff --git a/arch/m68knommu/platform/coldfire/dma.c b/arch/m68k/platform/coldfire/dma.c
index e88b95e2cc62..e88b95e2cc62 100644
--- a/arch/m68knommu/platform/coldfire/dma.c
+++ b/arch/m68k/platform/coldfire/dma.c
diff --git a/arch/m68knommu/platform/coldfire/dma_timer.c b/arch/m68k/platform/coldfire/dma_timer.c
index a5f562823d7a..a5f562823d7a 100644
--- a/arch/m68knommu/platform/coldfire/dma_timer.c
+++ b/arch/m68k/platform/coldfire/dma_timer.c
diff --git a/arch/m68knommu/platform/coldfire/entry.S b/arch/m68k/platform/coldfire/entry.S
index 5837cf080b6d..eab63f09965b 100644
--- a/arch/m68knommu/platform/coldfire/entry.S
+++ b/arch/m68k/platform/coldfire/entry.S
@@ -163,7 +163,7 @@ Lsignal_return:
 
 /*
  * This is the generic interrupt handler (for all hardware interrupt
- * sources). Calls upto high level code to do all the work.
+ * sources). Calls up to high level code to do all the work.
  */
 ENTRY(inthandler)
 	SAVE_ALL
diff --git a/arch/m68knommu/platform/coldfire/gpio.c b/arch/m68k/platform/coldfire/gpio.c
index ff0045793450..ff0045793450 100644
--- a/arch/m68knommu/platform/coldfire/gpio.c
+++ b/arch/m68k/platform/coldfire/gpio.c
diff --git a/arch/m68knommu/platform/coldfire/head.S b/arch/m68k/platform/coldfire/head.S
index 129bff4956b5..6ae91a499184 100644
--- a/arch/m68knommu/platform/coldfire/head.S
+++ b/arch/m68k/platform/coldfire/head.S
@@ -20,7 +20,7 @@
 
 /*
  *	If we don't have a fixed memory size, then lets build in code
- *	to auto detect the DRAM size. Obviously this is the prefered
+ *	to auto detect the DRAM size. Obviously this is the preferred
  *	method, and should work for most boards. It won't work for those
  *	that do not have their RAM starting at address 0, and it only
  *	works on SDRAM (not boards fitted with SRAM).
diff --git a/arch/m68knommu/platform/coldfire/intc-2.c b/arch/m68k/platform/coldfire/intc-2.c
index 2cbfbf035db9..74b55cfbc3cb 100644
--- a/arch/m68knommu/platform/coldfire/intc-2.c
+++ b/arch/m68k/platform/coldfire/intc-2.c
@@ -164,7 +164,7 @@ static int intc_irq_set_type(struct irq_data *d, unsigned int type)
 	}
 
 	if (tb)
-		set_irq_handler(irq, handle_edge_irq);
+		irq_set_handler(irq, handle_edge_irq);
 
 	irq -= EINT0;
 	pa = __raw_readw(MCFEPORT_EPPAR);
@@ -204,11 +204,11 @@ void __init init_IRQ(void)
 
 	for (irq = MCFINT_VECBASE; (irq < MCFINT_VECBASE + NR_VECS); irq++) {
 		if ((irq >= EINT1) && (irq <=EINT7))
-			set_irq_chip(irq, &intc_irq_chip_edge_port);
+			irq_set_chip(irq, &intc_irq_chip_edge_port);
 		else
-			set_irq_chip(irq, &intc_irq_chip);
-		set_irq_type(irq, IRQ_TYPE_LEVEL_HIGH);
-		set_irq_handler(irq, handle_level_irq);
+			irq_set_chip(irq, &intc_irq_chip);
+		irq_set_irq_type(irq, IRQ_TYPE_LEVEL_HIGH);
+		irq_set_handler(irq, handle_level_irq);
 	}
 }
 
diff --git a/arch/m68knommu/platform/coldfire/intc-simr.c b/arch/m68k/platform/coldfire/intc-simr.c
index e642b24ab729..d6a4d9d53e42 100644
--- a/arch/m68knommu/platform/coldfire/intc-simr.c
+++ b/arch/m68k/platform/coldfire/intc-simr.c
@@ -141,7 +141,7 @@ static int intc_irq_set_type(struct irq_data *d, unsigned int type)
 	}
 
 	if (tb)
-		set_irq_handler(irq, handle_edge_irq);
+		irq_set_handler(irq, handle_edge_irq);
 
 	ebit = irq2ebit(irq) * 2;
 	pa = __raw_readw(MCFEPORT_EPPAR);
@@ -181,11 +181,11 @@ void __init init_IRQ(void)
 	eirq = MCFINT_VECBASE + 64 + (MCFINTC1_ICR0 ? 64 : 0);
 	for (irq = MCFINT_VECBASE; (irq < eirq); irq++) {
 		if ((irq >= EINT1) && (irq <= EINT7))
-			set_irq_chip(irq, &intc_irq_chip_edge_port);
+			irq_set_chip(irq, &intc_irq_chip_edge_port);
 		else
-			set_irq_chip(irq, &intc_irq_chip);
-		set_irq_type(irq, IRQ_TYPE_LEVEL_HIGH);
-		set_irq_handler(irq, handle_level_irq);
+			irq_set_chip(irq, &intc_irq_chip);
+		irq_set_irq_type(irq, IRQ_TYPE_LEVEL_HIGH);
+		irq_set_handler(irq, handle_level_irq);
 	}
 }
 
diff --git a/arch/m68knommu/platform/coldfire/intc.c b/arch/m68k/platform/coldfire/intc.c
index d648081a63f6..0bbb414856eb 100644
--- a/arch/m68knommu/platform/coldfire/intc.c
+++ b/arch/m68k/platform/coldfire/intc.c
@@ -37,7 +37,7 @@ unsigned char mcf_irq2imr[NR_IRQS];
 /*
  * In the early version 2 core ColdFire parts the IMR register was 16 bits
  * in size. Version 3 (and later version 2) core parts have a 32 bit
- * sized IMR register. Provide some size independant methods to access the
+ * sized IMR register. Provide some size independent methods to access the
  * IMR register.
  */
 #ifdef MCFSIM_IMR_IS_16BITS
@@ -143,9 +143,9 @@ void __init init_IRQ(void)
 	mcf_maskimr(0xffffffff);
 
 	for (irq = 0; (irq < NR_IRQS); irq++) {
-		set_irq_chip(irq, &intc_irq_chip);
-		set_irq_type(irq, IRQ_TYPE_LEVEL_HIGH);
-		set_irq_handler(irq, handle_level_irq);
+		irq_set_chip(irq, &intc_irq_chip);
+		irq_set_irq_type(irq, IRQ_TYPE_LEVEL_HIGH);
+		irq_set_handler(irq, handle_level_irq);
 	}
 }
 
diff --git a/arch/m68knommu/platform/coldfire/pinmux.c b/arch/m68k/platform/coldfire/pinmux.c
index 8c62b825939f..8c62b825939f 100644
--- a/arch/m68knommu/platform/coldfire/pinmux.c
+++ b/arch/m68k/platform/coldfire/pinmux.c
diff --git a/arch/m68knommu/platform/coldfire/pit.c b/arch/m68k/platform/coldfire/pit.c
index c2b980926bec..c2b980926bec 100644
--- a/arch/m68knommu/platform/coldfire/pit.c
+++ b/arch/m68k/platform/coldfire/pit.c
diff --git a/arch/m68knommu/platform/coldfire/sltimers.c b/arch/m68k/platform/coldfire/sltimers.c
index 0a1b937c3e18..6a85daf9a7fd 100644
--- a/arch/m68knommu/platform/coldfire/sltimers.c
+++ b/arch/m68k/platform/coldfire/sltimers.c
@@ -106,7 +106,7 @@ static cycle_t mcfslt_read_clk(struct clocksource *cs)
 	cycles = mcfslt_cnt;
 	local_irq_restore(flags);
 
-	/* substract because slice timers count down */
+	/* subtract because slice timers count down */
 	return cycles - scnt;
 }
 
diff --git a/arch/m68knommu/platform/coldfire/timers.c b/arch/m68k/platform/coldfire/timers.c
index 60242f65fea9..60242f65fea9 100644
--- a/arch/m68knommu/platform/coldfire/timers.c
+++ b/arch/m68k/platform/coldfire/timers.c
diff --git a/arch/m68knommu/platform/coldfire/vectors.c b/arch/m68k/platform/coldfire/vectors.c
index a21d3f870b7a..a21d3f870b7a 100644
--- a/arch/m68knommu/platform/coldfire/vectors.c
+++ b/arch/m68k/platform/coldfire/vectors.c
diff --git a/arch/m68k/q40/README b/arch/m68k/q40/README
index f877b7249790..b26d5f55e91d 100644
--- a/arch/m68k/q40/README
+++ b/arch/m68k/q40/README
@@ -89,7 +89,7 @@ The main interrupt register IIRQ_REG will indicate whether an IRQ was internal
 or from some ISA devices, EIRQ_REG can distinguish up to 8 ISA IRQs.
 
 The Q40 custom chip is programmable to provide 2 periodic timers:
-	- 50 or 200 Hz - level 2, !!THIS CANT BE DISABLED!!
+	- 50 or 200 Hz - level 2, !!THIS CAN'T BE DISABLED!!
 	- 10 or 20 KHz - level 4, used for dma-sound
 
 Linux uses the 200 Hz interrupt for timer and beep by default.
diff --git a/arch/m68knommu/Kconfig.debug b/arch/m68knommu/Kconfig.debug
deleted file mode 100644
index ed6d9a83bfdb..000000000000
--- a/arch/m68knommu/Kconfig.debug
+++ /dev/null
@@ -1,35 +0,0 @@
-menu "Kernel hacking"
-
-source "lib/Kconfig.debug"
-
-config FULLDEBUG
-	bool "Full Symbolic/Source Debugging support"
-	help
-	  Enable debugging symbols on kernel build.
-
-config HIGHPROFILE
-	bool "Use fast second timer for profiling"
-	depends on COLDFIRE
-	help
-	  Use a fast secondary clock to produce profiling information.
-
-config BOOTPARAM
-	bool 'Compiled-in Kernel Boot Parameter'
-
-config BOOTPARAM_STRING
-	string 'Kernel Boot Parameter'
-	default 'console=ttyS0,19200'
-	depends on BOOTPARAM
-
-config NO_KERNEL_MSG
-	bool "Suppress Kernel BUG Messages"
-	help
-	  Do not output any debug BUG messages within the kernel.
-
-config BDM_DISABLE
-	bool "Disable BDM signals"
-	depends on (EXPERIMENTAL && COLDFIRE)
-	help
-	  Disable the ColdFire CPU's BDM signals.
-
-endmenu
diff --git a/arch/m68knommu/defconfig b/arch/m68knommu/defconfig
deleted file mode 100644
index 2f5655c577af..000000000000
--- a/arch/m68knommu/defconfig
+++ /dev/null
@@ -1,74 +0,0 @@
-CONFIG_EXPERIMENTAL=y
-CONFIG_LOG_BUF_SHIFT=14
-# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
-CONFIG_EXPERT=y
-# CONFIG_KALLSYMS is not set
-# CONFIG_HOTPLUG is not set
-# CONFIG_FUTEX is not set
-# CONFIG_EPOLL is not set
-# CONFIG_SIGNALFD is not set
-# CONFIG_TIMERFD is not set
-# CONFIG_EVENTFD is not set
-# CONFIG_AIO is not set
-# CONFIG_VM_EVENT_COUNTERS is not set
-# CONFIG_COMPAT_BRK is not set
-# CONFIG_BLK_DEV_BSG is not set
-# CONFIG_IOSCHED_DEADLINE is not set
-# CONFIG_IOSCHED_CFQ is not set
-CONFIG_M520x=y
-CONFIG_CLOCK_SET=y
-CONFIG_CLOCK_FREQ=166666666
-CONFIG_CLOCK_DIV=2
-CONFIG_M5208EVB=y
-# CONFIG_4KSTACKS is not set
-CONFIG_RAMBASE=0x40000000
-CONFIG_RAMSIZE=0x2000000
-CONFIG_VECTORBASE=0x40000000
-CONFIG_KERNELBASE=0x40020000
-CONFIG_RAM16BIT=y
-CONFIG_BINFMT_FLAT=y
-CONFIG_NET=y
-CONFIG_PACKET=y
-CONFIG_UNIX=y
-CONFIG_INET=y
-# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
-# CONFIG_INET_XFRM_MODE_TUNNEL is not set
-# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
-# CONFIG_INET_DIAG is not set
-# CONFIG_IPV6 is not set
-CONFIG_MTD=y
-CONFIG_MTD_PARTITIONS=y
-CONFIG_MTD_CHAR=y
-CONFIG_MTD_BLOCK=y
-CONFIG_MTD_RAM=y
-CONFIG_MTD_UCLINUX=y
-CONFIG_BLK_DEV_RAM=y
-# CONFIG_MISC_DEVICES is not set
-CONFIG_NETDEVICES=y
-CONFIG_NET_ETHERNET=y
-CONFIG_FEC=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
-# CONFIG_INPUT is not set
-# CONFIG_SERIO is not set
-# CONFIG_VT is not set
-CONFIG_SERIAL_MCF=y
-CONFIG_SERIAL_MCF_BAUDRATE=115200
-CONFIG_SERIAL_MCF_CONSOLE=y
-# CONFIG_UNIX98_PTYS is not set
-# CONFIG_HW_RANDOM is not set
-# CONFIG_HWMON is not set
-# CONFIG_USB_SUPPORT is not set
-CONFIG_EXT2_FS=y
-# CONFIG_FILE_LOCKING is not set
-# CONFIG_DNOTIFY is not set
-# CONFIG_SYSFS is not set
-CONFIG_ROMFS_FS=y
-CONFIG_ROMFS_BACKED_BY_MTD=y
-# CONFIG_NETWORK_FILESYSTEMS is not set
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
-CONFIG_SYSCTL_SYSCALL_CHECK=y
-CONFIG_FULLDEBUG=y
-CONFIG_BOOTPARAM=y
-CONFIG_BOOTPARAM_STRING="root=/dev/mtdblock0"
diff --git a/arch/m68knommu/kernel/.gitignore b/arch/m68knommu/kernel/.gitignore
deleted file mode 100644
index c5f676c3c224..000000000000
--- a/arch/m68knommu/kernel/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-vmlinux.lds
diff --git a/arch/m68knommu/lib/ashldi3.c b/arch/m68knommu/lib/ashldi3.c
deleted file mode 100644
index 008403eb8ce2..000000000000
--- a/arch/m68knommu/lib/ashldi3.c
+++ /dev/null
@@ -1,62 +0,0 @@
-/* ashrdi3.c extracted from gcc-2.95.2/libgcc2.c which is: */
-/* Copyright (C) 1989, 92-98, 1999 Free Software Foundation, Inc.
-
-This file is part of GNU CC.
-
-GNU CC is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
-
-GNU CC is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GNU CC; see the file COPYING.  If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA.  */
-
-#define BITS_PER_UNIT 8
-
-typedef 	 int SItype	__attribute__ ((mode (SI)));
-typedef unsigned int USItype	__attribute__ ((mode (SI)));
-typedef		 int DItype	__attribute__ ((mode (DI)));
-typedef int word_type __attribute__ ((mode (__word__)));
-
-struct DIstruct {SItype high, low;};
-
-typedef union
-{
-  struct DIstruct s;
-  DItype ll;
-} DIunion;
-
-DItype
-__ashldi3 (DItype u, word_type b)
-{
-  DIunion w;
-  word_type bm;
-  DIunion uu;
-
-  if (b == 0)
-    return u;
-
-  uu.ll = u;
-
-  bm = (sizeof (SItype) * BITS_PER_UNIT) - b;
-  if (bm <= 0)
-    {
-      w.s.low = 0;
-      w.s.high = (USItype)uu.s.low << -bm;
-    }
-  else
-    {
-      USItype carries = (USItype)uu.s.low >> bm;
-      w.s.low = (USItype)uu.s.low << b;
-      w.s.high = ((USItype)uu.s.high << b) | carries;
-    }
-
-  return w.ll;
-}
diff --git a/arch/m68knommu/lib/lshrdi3.c b/arch/m68knommu/lib/lshrdi3.c
deleted file mode 100644
index 93b1cb6fdee8..000000000000
--- a/arch/m68knommu/lib/lshrdi3.c
+++ /dev/null
@@ -1,62 +0,0 @@
-/* lshrdi3.c extracted from gcc-2.7.2/libgcc2.c which is: */
-/* Copyright (C) 1989, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
-
-This file is part of GNU CC.
-
-GNU CC is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
-
-GNU CC is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GNU CC; see the file COPYING.  If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA.  */
-
-#define BITS_PER_UNIT 8
-
-typedef 	 int SItype	__attribute__ ((mode (SI)));
-typedef unsigned int USItype	__attribute__ ((mode (SI)));
-typedef		 int DItype	__attribute__ ((mode (DI)));
-typedef int word_type __attribute__ ((mode (__word__)));
-
-struct DIstruct {SItype high, low;};
-
-typedef union
-{
-  struct DIstruct s;
-  DItype ll;
-} DIunion;
-
-DItype
-__lshrdi3 (DItype u, word_type b)
-{
-  DIunion w;
-  word_type bm;
-  DIunion uu;
-
-  if (b == 0)
-    return u;
-
-  uu.ll = u;
-
-  bm = (sizeof (SItype) * BITS_PER_UNIT) - b;
-  if (bm <= 0)
-    {
-      w.s.high = 0;
-      w.s.low = (USItype)uu.s.high >> -bm;
-    }
-  else
-    {
-      USItype carries = (USItype)uu.s.high << bm;
-      w.s.high = (USItype)uu.s.high >> b;
-      w.s.low = ((USItype)uu.s.low >> b) | carries;
-    }
-
-  return w.ll;
-}
diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index 5f0cf0e32653..851b3bf6e962 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -17,7 +17,7 @@ config MICROBLAZE
 	select OF_EARLY_FLATTREE
 	select HAVE_GENERIC_HARDIRQS
 	select GENERIC_IRQ_PROBE
-	select GENERIC_HARDIRQS_NO_DEPRECATED
+	select GENERIC_IRQ_SHOW
 
 config SWAP
 	def_bool n
diff --git a/arch/microblaze/Makefile b/arch/microblaze/Makefile
index 6f432e6df9af..b23c40eb7a52 100644
--- a/arch/microblaze/Makefile
+++ b/arch/microblaze/Makefile
@@ -18,7 +18,7 @@ export CPU_VER CPU_MAJOR CPU_MINOR CPU_REV
 # rather than bools y/n
 
 # Work out HW multipler support. This is tricky.
-# 1. Spartan2 has no HW multiplers.
+# 1. Spartan2 has no HW multipliers.
 # 2. MicroBlaze v3.x always uses them, except in Spartan 2
 # 3. All other FPGa/CPU ver combos, we can trust the CONFIG_ settings
 ifeq (,$(findstring spartan2,$(CONFIG_XILINX_MICROBLAZE0_FAMILY)))
diff --git a/arch/microblaze/include/asm/io.h b/arch/microblaze/include/asm/io.h
index eae32220f447..8cdac14b55b0 100644
--- a/arch/microblaze/include/asm/io.h
+++ b/arch/microblaze/include/asm/io.h
@@ -70,7 +70,7 @@ static inline void __raw_writeq(unsigned long v, volatile void __iomem *addr)
 
 /*
  * read (readb, readw, readl, readq) and write (writeb, writew,
- * writel, writeq) accessors are for PCI and thus littel endian.
+ * writel, writeq) accessors are for PCI and thus little endian.
  * Linux 2.4 for Microblaze had this wrong.
  */
 static inline unsigned char readb(const volatile void __iomem *addr)
diff --git a/arch/microblaze/include/asm/pci-bridge.h b/arch/microblaze/include/asm/pci-bridge.h
index 10717669e0c2..746df91e5796 100644
--- a/arch/microblaze/include/asm/pci-bridge.h
+++ b/arch/microblaze/include/asm/pci-bridge.h
@@ -76,7 +76,7 @@ struct pci_controller {
 	 * Used for variants of PCI indirect handling and possible quirks:
 	 *  SET_CFG_TYPE - used on 4xx or any PHB that does explicit type0/1
 	 *  EXT_REG - provides access to PCI-e extended registers
-	 *  SURPRESS_PRIMARY_BUS - we surpress the setting of PCI_PRIMARY_BUS
+	 *  SURPRESS_PRIMARY_BUS - we suppress the setting of PCI_PRIMARY_BUS
 	 *   on Freescale PCI-e controllers since they used the PCI_PRIMARY_BUS
 	 *   to determine which bus number to match on when generating type0
 	 *   config cycles
diff --git a/arch/microblaze/include/asm/pci.h b/arch/microblaze/include/asm/pci.h
index 2232ff942ba9..ba65cf472544 100644
--- a/arch/microblaze/include/asm/pci.h
+++ b/arch/microblaze/include/asm/pci.h
@@ -158,7 +158,7 @@ extern void pci_resource_to_user(const struct pci_dev *dev, int bar,
 extern void pcibios_setup_bus_devices(struct pci_bus *bus);
 extern void pcibios_setup_bus_self(struct pci_bus *bus);
 
-/* This part of code was originaly in xilinx-pci.h */
+/* This part of code was originally in xilinx-pci.h */
 #ifdef CONFIG_PCI_XILINX
 extern void __init xilinx_pci_init(void);
 #else
diff --git a/arch/microblaze/include/asm/unistd.h b/arch/microblaze/include/asm/unistd.h
index d770b00ec6b1..30edd61a6b8f 100644
--- a/arch/microblaze/include/asm/unistd.h
+++ b/arch/microblaze/include/asm/unistd.h
@@ -386,8 +386,12 @@
 #define __NR_fanotify_init	368
 #define __NR_fanotify_mark	369
 #define __NR_prlimit64		370
+#define __NR_name_to_handle_at	371
+#define __NR_open_by_handle_at	372
+#define __NR_clock_adjtime	373
+#define __NR_syncfs		374
 
-#define __NR_syscalls		371
+#define __NR_syscalls		375
 
 #ifdef __KERNEL__
 #ifndef __ASSEMBLY__
diff --git a/arch/microblaze/kernel/Makefile b/arch/microblaze/kernel/Makefile
index f0cb5c26c81c..494b63b72dd7 100644
--- a/arch/microblaze/kernel/Makefile
+++ b/arch/microblaze/kernel/Makefile
@@ -10,6 +10,7 @@ CFLAGS_REMOVE_early_printk.o = -pg
 CFLAGS_REMOVE_selfmod.o = -pg
 CFLAGS_REMOVE_heartbeat.o = -pg
 CFLAGS_REMOVE_ftrace.o = -pg
+CFLAGS_REMOVE_process.o = -pg
 endif
 
 extra-y := head.o vmlinux.lds
diff --git a/arch/microblaze/kernel/cpu/cache.c b/arch/microblaze/kernel/cpu/cache.c
index cf0afd90a2c0..4b7d8a3f4aef 100644
--- a/arch/microblaze/kernel/cpu/cache.c
+++ b/arch/microblaze/kernel/cpu/cache.c
@@ -129,7 +129,7 @@ do {									\
  * to use for simple wdc or wic.
  *
  * start address is cache aligned
- * end address is not aligned, if end is aligned then I have to substract
+ * end address is not aligned, if end is aligned then I have to subtract
  * cacheline length because I can't flush/invalidate the next cacheline.
  * If is not, I align it because I will flush/invalidate whole line.
  */
diff --git a/arch/microblaze/kernel/ftrace.c b/arch/microblaze/kernel/ftrace.c
index 515feb404555..357d56abe24a 100644
--- a/arch/microblaze/kernel/ftrace.c
+++ b/arch/microblaze/kernel/ftrace.c
@@ -51,6 +51,9 @@ void prepare_ftrace_return(unsigned long *parent, unsigned long self_addr)
 			: "r" (parent), "r" (return_hooker)
 	);
 
+	flush_dcache_range((u32)parent, (u32)parent + 4);
+	flush_icache_range((u32)parent, (u32)parent + 4);
+
 	if (unlikely(faulted)) {
 		ftrace_graph_stop();
 		WARN_ON(1);
@@ -95,6 +98,9 @@ static int ftrace_modify_code(unsigned long addr, unsigned int value)
 	if (unlikely(faulted))
 		return -EFAULT;
 
+	flush_dcache_range(addr, addr + 4);
+	flush_icache_range(addr, addr + 4);
+
 	return 0;
 }
 
@@ -195,8 +201,6 @@ int ftrace_update_ftrace_func(ftrace_func_t func)
 	ret += ftrace_modify_code((unsigned long)&ftrace_caller,
 				  MICROBLAZE_NOP);
 
-	/* All changes are done - lets do caches consistent */
-	flush_icache();
 	return ret;
 }
 
@@ -210,7 +214,6 @@ int ftrace_enable_ftrace_graph_caller(void)
 
 	old_jump = *(unsigned int *)ip; /* save jump over instruction */
 	ret = ftrace_modify_code(ip, MICROBLAZE_NOP);
-	flush_icache();
 
 	pr_debug("%s: Replace instruction: 0x%x\n", __func__, old_jump);
 	return ret;
@@ -222,7 +225,6 @@ int ftrace_disable_ftrace_graph_caller(void)
 	unsigned long ip = (unsigned long)(&ftrace_call_graph);
 
 	ret = ftrace_modify_code(ip, old_jump);
-	flush_icache();
 
 	pr_debug("%s\n", __func__);
 	return ret;
diff --git a/arch/microblaze/kernel/intc.c b/arch/microblaze/kernel/intc.c
index e4661285118e..c88f066f41bd 100644
--- a/arch/microblaze/kernel/intc.c
+++ b/arch/microblaze/kernel/intc.c
@@ -50,7 +50,7 @@ static void intc_enable_or_unmask(struct irq_data *d)
 	 * ack function since the handle_level_irq function
 	 * acks the irq before calling the interrupt handler
 	 */
-	if (irq_to_desc(d->irq)->status & IRQ_LEVEL)
+	if (irqd_is_level_type(d))
 		out_be32(INTC_BASE + IAR, mask);
 }
 
@@ -157,12 +157,12 @@ void __init init_IRQ(void)
 
 	for (i = 0; i < nr_irq; ++i) {
 		if (intr_type & (0x00000001 << i)) {
-			set_irq_chip_and_handler_name(i, &intc_dev,
-				handle_edge_irq, intc_dev.name);
+			irq_set_chip_and_handler_name(i, &intc_dev,
+				handle_edge_irq, "edge");
 			irq_clear_status_flags(i, IRQ_LEVEL);
 		} else {
-			set_irq_chip_and_handler_name(i, &intc_dev,
-				handle_level_irq, intc_dev.name);
+			irq_set_chip_and_handler_name(i, &intc_dev,
+				handle_level_irq, "level");
 			irq_set_status_flags(i, IRQ_LEVEL);
 		}
 	}
diff --git a/arch/microblaze/kernel/irq.c b/arch/microblaze/kernel/irq.c
index 098822413729..ce7ac8435d5c 100644
--- a/arch/microblaze/kernel/irq.c
+++ b/arch/microblaze/kernel/irq.c
@@ -47,48 +47,6 @@ next_irq:
 	trace_hardirqs_on();
 }
 
-int show_interrupts(struct seq_file *p, void *v)
-{
-	int i = *(loff_t *) v, j;
-	struct irq_desc *desc;
-	struct irqaction *action;
-	unsigned long flags;
-
-	if (i == 0) {
-		seq_printf(p, "		");
-		for_each_online_cpu(j)
-			seq_printf(p, "CPU%-8d", j);
-		seq_putc(p, '\n');
-	}
-
-	if (i < nr_irq) {
-		desc = irq_to_desc(i);
-		raw_spin_lock_irqsave(&desc->lock, flags);
-		action = desc->action;
-		if (!action)
-			goto skip;
-		seq_printf(p, "%3d: ", i);
-#ifndef CONFIG_SMP
-		seq_printf(p, "%10u ", kstat_irqs(i));
-#else
-		for_each_online_cpu(j)
-			seq_printf(p, "%10u ", kstat_cpu(j).irqs[i]);
-#endif
-		seq_printf(p, " %8s", desc->status &
-					IRQ_LEVEL ? "level" : "edge");
-		seq_printf(p, " %8s", desc->irq_data.chip->name);
-		seq_printf(p, "  %s", action->name);
-
-		for (action = action->next; action; action = action->next)
-			seq_printf(p, ", %s", action->name);
-
-		seq_putc(p, '\n');
-skip:
-		raw_spin_unlock_irqrestore(&desc->lock, flags);
-	}
-	return 0;
-}
-
 /* MS: There is no any advance mapping mechanism. We are using simple 32bit
   intc without any cascades or any connection that's why mapping is 1:1 */
 unsigned int irq_create_mapping(struct irq_host *host, irq_hw_number_t hwirq)
diff --git a/arch/microblaze/kernel/syscall_table.S b/arch/microblaze/kernel/syscall_table.S
index e88a930fd1e3..85cea81d1ca1 100644
--- a/arch/microblaze/kernel/syscall_table.S
+++ b/arch/microblaze/kernel/syscall_table.S
@@ -375,3 +375,7 @@ ENTRY(sys_call_table)
 	.long sys_fanotify_init
 	.long sys_fanotify_mark
 	.long sys_prlimit64	/* 370 */
+	.long sys_name_to_handle_at
+	.long sys_open_by_handle_at
+	.long sys_clock_adjtime
+	.long sys_syncfs
diff --git a/arch/microblaze/lib/Makefile b/arch/microblaze/lib/Makefile
index f1fcbff3da25..10c320aa908b 100644
--- a/arch/microblaze/lib/Makefile
+++ b/arch/microblaze/lib/Makefile
@@ -2,6 +2,12 @@
 # Makefile
 #
 
+ifdef CONFIG_FUNCTION_TRACER
+CFLAGS_REMOVE_ashldi3.o = -pg
+CFLAGS_REMOVE_ashrdi3.o = -pg
+CFLAGS_REMOVE_lshrdi3.o = -pg
+endif
+
 lib-y :=  memset.o
 
 ifeq ($(CONFIG_OPT_LIB_ASM),y)
diff --git a/arch/microblaze/lib/memcpy.c b/arch/microblaze/lib/memcpy.c
index cc495d7d99cc..52746e718dfa 100644
--- a/arch/microblaze/lib/memcpy.c
+++ b/arch/microblaze/lib/memcpy.c
@@ -63,8 +63,8 @@ void *memcpy(void *v_dst, const void *v_src, __kernel_size_t c)
 	if (likely(c >= 4)) {
 		unsigned  value, buf_hold;
 
-		/* Align the dstination to a word boundry. */
-		/* This is done in an endian independant manner. */
+		/* Align the destination to a word boundary. */
+		/* This is done in an endian independent manner. */
 		switch ((unsigned long)dst & 3) {
 		case 1:
 			*dst++ = *src++;
@@ -80,7 +80,7 @@ void *memcpy(void *v_dst, const void *v_src, __kernel_size_t c)
 		i_dst = (void *)dst;
 
 		/* Choose a copy scheme based on the source */
-		/* alignment relative to dstination. */
+		/* alignment relative to destination. */
 		switch ((unsigned long)src & 3) {
 		case 0x0:	/* Both byte offsets are aligned */
 			i_src  = (const void *)src;
@@ -173,7 +173,7 @@ void *memcpy(void *v_dst, const void *v_src, __kernel_size_t c)
 	}
 
 	/* Finish off any remaining bytes */
-	/* simple fast copy, ... unless a cache boundry is crossed */
+	/* simple fast copy, ... unless a cache boundary is crossed */
 	switch (c) {
 	case 3:
 		*dst++ = *src++;
diff --git a/arch/microblaze/lib/memmove.c b/arch/microblaze/lib/memmove.c
index 810fd68775e3..2146c3752a80 100644
--- a/arch/microblaze/lib/memmove.c
+++ b/arch/microblaze/lib/memmove.c
@@ -83,8 +83,8 @@ void *memmove(void *v_dst, const void *v_src, __kernel_size_t c)
 	if (c >= 4) {
 		unsigned  value, buf_hold;
 
-		/* Align the destination to a word boundry. */
-		/* This is done in an endian independant manner. */
+		/* Align the destination to a word boundary. */
+		/* This is done in an endian independent manner. */
 
 		switch ((unsigned long)dst & 3) {
 		case 3:
@@ -193,7 +193,7 @@ void *memmove(void *v_dst, const void *v_src, __kernel_size_t c)
 		dst = (void *)i_dst;
 	}
 
-	/* simple fast copy, ... unless a cache boundry is crossed */
+	/* simple fast copy, ... unless a cache boundary is crossed */
 	/* Finish off any remaining bytes */
 	switch (c) {
 	case 4:
diff --git a/arch/microblaze/lib/memset.c b/arch/microblaze/lib/memset.c
index 834565d1607e..ddf67939576d 100644
--- a/arch/microblaze/lib/memset.c
+++ b/arch/microblaze/lib/memset.c
@@ -64,7 +64,7 @@ void *memset(void *v_src, int c, __kernel_size_t n)
 
 	if (likely(n >= 4)) {
 		/* Align the destination to a word boundary */
-		/* This is done in an endian independant manner */
+		/* This is done in an endian independent manner */
 		switch ((unsigned) src & 3) {
 		case 1:
 			*src++ = c;
diff --git a/arch/microblaze/pci/indirect_pci.c b/arch/microblaze/pci/indirect_pci.c
index 25f18f017f21..4196eb6bd764 100644
--- a/arch/microblaze/pci/indirect_pci.c
+++ b/arch/microblaze/pci/indirect_pci.c
@@ -108,7 +108,7 @@ indirect_write_config(struct pci_bus *bus, unsigned int devfn, int offset,
 		out_le32(hose->cfg_addr, (0x80000000 | (bus_no << 16) |
 			 (devfn << 8) | reg | cfg_type));
 
-	/* surpress setting of PCI_PRIMARY_BUS */
+	/* suppress setting of PCI_PRIMARY_BUS */
 	if (hose->indirect_type & INDIRECT_TYPE_SURPRESS_PRIMARY_BUS)
 		if ((offset == PCI_PRIMARY_BUS) &&
 			(bus->number == hose->first_busno))
diff --git a/arch/microblaze/pci/pci-common.c b/arch/microblaze/pci/pci-common.c
index 1e01a1253631..53599067d2f9 100644
--- a/arch/microblaze/pci/pci-common.c
+++ b/arch/microblaze/pci/pci-common.c
@@ -237,7 +237,7 @@ int pci_read_irq_line(struct pci_dev *pci_dev)
 
 		virq = irq_create_mapping(NULL, line);
 		if (virq != NO_IRQ)
-			set_irq_type(virq, IRQ_TYPE_LEVEL_LOW);
+			irq_set_irq_type(virq, IRQ_TYPE_LEVEL_LOW);
 	} else {
 		pr_debug(" Got one, spec %d cells (0x%08x 0x%08x...) on %s\n",
 			 oirq.size, oirq.specifier[0], oirq.specifier[1],
diff --git a/arch/microblaze/platform/generic/Kconfig.auto b/arch/microblaze/platform/generic/Kconfig.auto
index 5d86fc19029d..25a6f019e94d 100644
--- a/arch/microblaze/platform/generic/Kconfig.auto
+++ b/arch/microblaze/platform/generic/Kconfig.auto
@@ -29,7 +29,7 @@ config KERNEL_BASE_ADDR
 	  BASE Address for kernel
 
 config XILINX_MICROBLAZE0_FAMILY
-	string "Targetted FPGA family"
+	string "Targeted FPGA family"
 	default "virtex5"
 
 config XILINX_MICROBLAZE0_USE_MSR_INSTR
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 9905e2e85de4..8e256cc5dcd9 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -22,6 +22,7 @@ config MIPS
 	select HAVE_DMA_API_DEBUG
 	select HAVE_GENERIC_HARDIRQS
 	select GENERIC_IRQ_PROBE
+	select GENERIC_IRQ_SHOW
 	select HAVE_ARCH_JUMP_LABEL
 
 menu "Machine selection"
@@ -862,6 +863,9 @@ config GPIO_TXX9
 config CFE
 	bool
 
+config ARCH_DMA_ADDR_T_64BIT
+	def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
+
 config DMA_COHERENT
 	bool
 
@@ -1131,7 +1135,7 @@ config CPU_LOONGSON2E
 	  The Loongson 2E processor implements the MIPS III instruction set
 	  with many extensions.
 
-	  It has an internal FPGA northbridge, which is compatiable to
+	  It has an internal FPGA northbridge, which is compatible to
 	  bonito64.
 
 config CPU_LOONGSON2F
diff --git a/arch/mips/Makefile b/arch/mips/Makefile
index ac1d5b611a27..53e3514ba10e 100644
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -101,7 +101,7 @@ cflags-y += -ffreestanding
 # carefully avoid to add it redundantly because gcc 3.3/3.4 complains
 # when fed the toolchain default!
 #
-# Certain gcc versions upto gcc 4.1.1 (probably 4.2-subversion as of
+# Certain gcc versions up to gcc 4.1.1 (probably 4.2-subversion as of
 # 2006-10-10 don't properly change the predefined symbols if -EB / -EL
 # are used, so we kludge that here.  A bug has been filed at
 # http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29413.
@@ -314,5 +314,5 @@ define archhelp
 	echo '  vmlinuz.bin          - Raw binary zboot image'
 	echo '  vmlinuz.srec         - SREC zboot image'
 	echo
-	echo '  These will be default as apropriate for a configured platform.'
+	echo '  These will be default as appropriate for a configured platform.'
 endef
diff --git a/arch/mips/alchemy/common/clocks.c b/arch/mips/alchemy/common/clocks.c
index af0fe41055af..f38298a8b98c 100644
--- a/arch/mips/alchemy/common/clocks.c
+++ b/arch/mips/alchemy/common/clocks.c
@@ -75,7 +75,7 @@ void set_au1x00_uart_baud_base(unsigned long new_baud_base)
  * counter, if it exists.  If we don't have an accurate processor
  * speed, all of the peripherals that derive their clocks based on
  * this advertised speed will introduce error and sometimes not work
- * properly.  This function is futher convoluted to still allow configurations
+ * properly.  This function is further convoluted to still allow configurations
  * to do that in case they have really, really old silicon with a
  * write-only PLL register.			-- Dan
  */
diff --git a/arch/mips/alchemy/common/irq.c b/arch/mips/alchemy/common/irq.c
index 9f78ada83b3c..55dd7c888517 100644
--- a/arch/mips/alchemy/common/irq.c
+++ b/arch/mips/alchemy/common/irq.c
@@ -39,7 +39,7 @@
 #include <asm/mach-pb1x00/pb1000.h>
 #endif
 
-static int au1x_ic_settype(unsigned int irq, unsigned int flow_type);
+static int au1x_ic_settype(struct irq_data *d, unsigned int flow_type);
 
 /* NOTE on interrupt priorities: The original writers of this code said:
  *
@@ -218,17 +218,17 @@ struct au1xxx_irqmap au1200_irqmap[] __initdata = {
 };
 
 
-static void au1x_ic0_unmask(unsigned int irq_nr)
+static void au1x_ic0_unmask(struct irq_data *d)
 {
-	unsigned int bit = irq_nr - AU1000_INTC0_INT_BASE;
+	unsigned int bit = d->irq - AU1000_INTC0_INT_BASE;
 	au_writel(1 << bit, IC0_MASKSET);
 	au_writel(1 << bit, IC0_WAKESET);
 	au_sync();
 }
 
-static void au1x_ic1_unmask(unsigned int irq_nr)
+static void au1x_ic1_unmask(struct irq_data *d)
 {
-	unsigned int bit = irq_nr - AU1000_INTC1_INT_BASE;
+	unsigned int bit = d->irq - AU1000_INTC1_INT_BASE;
 	au_writel(1 << bit, IC1_MASKSET);
 	au_writel(1 << bit, IC1_WAKESET);
 
@@ -236,31 +236,31 @@ static void au1x_ic1_unmask(unsigned int irq_nr)
  * nowhere in the current kernel sources is it disabled.	--mlau
  */
 #if defined(CONFIG_MIPS_PB1000)
-	if (irq_nr == AU1000_GPIO15_INT)
+	if (d->irq == AU1000_GPIO15_INT)
 		au_writel(0x4000, PB1000_MDR); /* enable int */
 #endif
 	au_sync();
 }
 
-static void au1x_ic0_mask(unsigned int irq_nr)
+static void au1x_ic0_mask(struct irq_data *d)
 {
-	unsigned int bit = irq_nr - AU1000_INTC0_INT_BASE;
+	unsigned int bit = d->irq - AU1000_INTC0_INT_BASE;
 	au_writel(1 << bit, IC0_MASKCLR);
 	au_writel(1 << bit, IC0_WAKECLR);
 	au_sync();
 }
 
-static void au1x_ic1_mask(unsigned int irq_nr)
+static void au1x_ic1_mask(struct irq_data *d)
 {
-	unsigned int bit = irq_nr - AU1000_INTC1_INT_BASE;
+	unsigned int bit = d->irq - AU1000_INTC1_INT_BASE;
 	au_writel(1 << bit, IC1_MASKCLR);
 	au_writel(1 << bit, IC1_WAKECLR);
 	au_sync();
 }
 
-static void au1x_ic0_ack(unsigned int irq_nr)
+static void au1x_ic0_ack(struct irq_data *d)
 {
-	unsigned int bit = irq_nr - AU1000_INTC0_INT_BASE;
+	unsigned int bit = d->irq - AU1000_INTC0_INT_BASE;
 
 	/*
 	 * This may assume that we don't get interrupts from
@@ -271,9 +271,9 @@ static void au1x_ic0_ack(unsigned int irq_nr)
 	au_sync();
 }
 
-static void au1x_ic1_ack(unsigned int irq_nr)
+static void au1x_ic1_ack(struct irq_data *d)
 {
-	unsigned int bit = irq_nr - AU1000_INTC1_INT_BASE;
+	unsigned int bit = d->irq - AU1000_INTC1_INT_BASE;
 
 	/*
 	 * This may assume that we don't get interrupts from
@@ -284,9 +284,9 @@ static void au1x_ic1_ack(unsigned int irq_nr)
 	au_sync();
 }
 
-static void au1x_ic0_maskack(unsigned int irq_nr)
+static void au1x_ic0_maskack(struct irq_data *d)
 {
-	unsigned int bit = irq_nr - AU1000_INTC0_INT_BASE;
+	unsigned int bit = d->irq - AU1000_INTC0_INT_BASE;
 
 	au_writel(1 << bit, IC0_WAKECLR);
 	au_writel(1 << bit, IC0_MASKCLR);
@@ -295,9 +295,9 @@ static void au1x_ic0_maskack(unsigned int irq_nr)
 	au_sync();
 }
 
-static void au1x_ic1_maskack(unsigned int irq_nr)
+static void au1x_ic1_maskack(struct irq_data *d)
 {
-	unsigned int bit = irq_nr - AU1000_INTC1_INT_BASE;
+	unsigned int bit = d->irq - AU1000_INTC1_INT_BASE;
 
 	au_writel(1 << bit, IC1_WAKECLR);
 	au_writel(1 << bit, IC1_MASKCLR);
@@ -306,9 +306,9 @@ static void au1x_ic1_maskack(unsigned int irq_nr)
 	au_sync();
 }
 
-static int au1x_ic1_setwake(unsigned int irq, unsigned int on)
+static int au1x_ic1_setwake(struct irq_data *d, unsigned int on)
 {
-	int bit = irq - AU1000_INTC1_INT_BASE;
+	int bit = d->irq - AU1000_INTC1_INT_BASE;
 	unsigned long wakemsk, flags;
 
 	/* only GPIO 0-7 can act as wakeup source.  Fortunately these
@@ -336,28 +336,30 @@ static int au1x_ic1_setwake(unsigned int irq, unsigned int on)
  */
 static struct irq_chip au1x_ic0_chip = {
 	.name		= "Alchemy-IC0",
-	.ack		= au1x_ic0_ack,
-	.mask		= au1x_ic0_mask,
-	.mask_ack	= au1x_ic0_maskack,
-	.unmask		= au1x_ic0_unmask,
-	.set_type	= au1x_ic_settype,
+	.irq_ack	= au1x_ic0_ack,
+	.irq_mask	= au1x_ic0_mask,
+	.irq_mask_ack	= au1x_ic0_maskack,
+	.irq_unmask	= au1x_ic0_unmask,
+	.irq_set_type	= au1x_ic_settype,
 };
 
 static struct irq_chip au1x_ic1_chip = {
 	.name		= "Alchemy-IC1",
-	.ack		= au1x_ic1_ack,
-	.mask		= au1x_ic1_mask,
-	.mask_ack	= au1x_ic1_maskack,
-	.unmask		= au1x_ic1_unmask,
-	.set_type	= au1x_ic_settype,
-	.set_wake	= au1x_ic1_setwake,
+	.irq_ack	= au1x_ic1_ack,
+	.irq_mask	= au1x_ic1_mask,
+	.irq_mask_ack	= au1x_ic1_maskack,
+	.irq_unmask	= au1x_ic1_unmask,
+	.irq_set_type	= au1x_ic_settype,
+	.irq_set_wake	= au1x_ic1_setwake,
 };
 
-static int au1x_ic_settype(unsigned int irq, unsigned int flow_type)
+static int au1x_ic_settype(struct irq_data *d, unsigned int flow_type)
 {
 	struct irq_chip *chip;
 	unsigned long icr[6];
-	unsigned int bit, ic;
+	unsigned int bit, ic, irq = d->irq;
+	irq_flow_handler_t handler = NULL;
+	unsigned char *name = NULL;
 	int ret;
 
 	if (irq >= AU1000_INTC1_INT_BASE) {
@@ -387,47 +389,47 @@ static int au1x_ic_settype(unsigned int irq, unsigned int flow_type)
 		au_writel(1 << bit, icr[5]);
 		au_writel(1 << bit, icr[4]);
 		au_writel(1 << bit, icr[0]);
-		set_irq_chip_and_handler_name(irq, chip,
-				handle_edge_irq, "riseedge");
+		handler = handle_edge_irq;
+		name = "riseedge";
 		break;
 	case IRQ_TYPE_EDGE_FALLING:	/* 0:1:0 */
 		au_writel(1 << bit, icr[5]);
 		au_writel(1 << bit, icr[1]);
 		au_writel(1 << bit, icr[3]);
-		set_irq_chip_and_handler_name(irq, chip,
-				handle_edge_irq, "falledge");
+		handler = handle_edge_irq;
+		name = "falledge";
 		break;
 	case IRQ_TYPE_EDGE_BOTH:	/* 0:1:1 */
 		au_writel(1 << bit, icr[5]);
 		au_writel(1 << bit, icr[1]);
 		au_writel(1 << bit, icr[0]);
-		set_irq_chip_and_handler_name(irq, chip,
-				handle_edge_irq, "bothedge");
+		handler = handle_edge_irq;
+		name = "bothedge";
 		break;
 	case IRQ_TYPE_LEVEL_HIGH:	/* 1:0:1 */
 		au_writel(1 << bit, icr[2]);
 		au_writel(1 << bit, icr[4]);
 		au_writel(1 << bit, icr[0]);
-		set_irq_chip_and_handler_name(irq, chip,
-				handle_level_irq, "hilevel");
+		handler = handle_level_irq;
+		name = "hilevel";
 		break;
 	case IRQ_TYPE_LEVEL_LOW:	/* 1:1:0 */
 		au_writel(1 << bit, icr[2]);
 		au_writel(1 << bit, icr[1]);
 		au_writel(1 << bit, icr[3]);
-		set_irq_chip_and_handler_name(irq, chip,
-				handle_level_irq, "lowlevel");
+		handler = handle_level_irq;
+		name = "lowlevel";
 		break;
 	case IRQ_TYPE_NONE:		/* 0:0:0 */
 		au_writel(1 << bit, icr[5]);
 		au_writel(1 << bit, icr[4]);
 		au_writel(1 << bit, icr[3]);
-		/* set at least chip so we can call set_irq_type() on it */
-		set_irq_chip(irq, chip);
 		break;
 	default:
 		ret = -EINVAL;
 	}
+	__irq_set_chip_handler_name_locked(d->irq, chip, handler, name);
+
 	au_sync();
 
 	return ret;
@@ -504,11 +506,11 @@ static void __init au1000_init_irq(struct au1xxx_irqmap *map)
 	 */
 	for (i = AU1000_INTC0_INT_BASE;
 	     (i < AU1000_INTC0_INT_BASE + 32); i++)
-		au1x_ic_settype(i, IRQ_TYPE_NONE);
+		au1x_ic_settype(irq_get_irq_data(i), IRQ_TYPE_NONE);
 
 	for (i = AU1000_INTC1_INT_BASE;
 	     (i < AU1000_INTC1_INT_BASE + 32); i++)
-		au1x_ic_settype(i, IRQ_TYPE_NONE);
+		au1x_ic_settype(irq_get_irq_data(i), IRQ_TYPE_NONE);
 
 	/*
 	 * Initialize IC0, which is fixed per processor.
@@ -526,7 +528,7 @@ static void __init au1000_init_irq(struct au1xxx_irqmap *map)
 				au_writel(1 << bit, IC0_ASSIGNSET);
 		}
 
-		au1x_ic_settype(irq_nr, map->im_type);
+		au1x_ic_settype(irq_get_irq_data(irq_nr), map->im_type);
 		++map;
 	}
 
diff --git a/arch/mips/alchemy/devboards/bcsr.c b/arch/mips/alchemy/devboards/bcsr.c
index c52af8821da0..596ad00e7f05 100644
--- a/arch/mips/alchemy/devboards/bcsr.c
+++ b/arch/mips/alchemy/devboards/bcsr.c
@@ -97,26 +97,26 @@ static void bcsr_csc_handler(unsigned int irq, struct irq_desc *d)
  * CPLD generates tons of spurious interrupts (at least on my DB1200).
  *	-- mlau
  */
-static void bcsr_irq_mask(unsigned int irq_nr)
+static void bcsr_irq_mask(struct irq_data *d)
 {
-	unsigned short v = 1 << (irq_nr - bcsr_csc_base);
+	unsigned short v = 1 << (d->irq - bcsr_csc_base);
 	__raw_writew(v, bcsr_virt + BCSR_REG_INTCLR);
 	__raw_writew(v, bcsr_virt + BCSR_REG_MASKCLR);
 	wmb();
 }
 
-static void bcsr_irq_maskack(unsigned int irq_nr)
+static void bcsr_irq_maskack(struct irq_data *d)
 {
-	unsigned short v = 1 << (irq_nr - bcsr_csc_base);
+	unsigned short v = 1 << (d->irq - bcsr_csc_base);
 	__raw_writew(v, bcsr_virt + BCSR_REG_INTCLR);
 	__raw_writew(v, bcsr_virt + BCSR_REG_MASKCLR);
 	__raw_writew(v, bcsr_virt + BCSR_REG_INTSTAT);	/* ack */
 	wmb();
 }
 
-static void bcsr_irq_unmask(unsigned int irq_nr)
+static void bcsr_irq_unmask(struct irq_data *d)
 {
-	unsigned short v = 1 << (irq_nr - bcsr_csc_base);
+	unsigned short v = 1 << (d->irq - bcsr_csc_base);
 	__raw_writew(v, bcsr_virt + BCSR_REG_INTSET);
 	__raw_writew(v, bcsr_virt + BCSR_REG_MASKSET);
 	wmb();
@@ -124,9 +124,9 @@ static void bcsr_irq_unmask(unsigned int irq_nr)
 
 static struct irq_chip bcsr_irq_type = {
 	.name		= "CPLD",
-	.mask		= bcsr_irq_mask,
-	.mask_ack	= bcsr_irq_maskack,
-	.unmask		= bcsr_irq_unmask,
+	.irq_mask	= bcsr_irq_mask,
+	.irq_mask_ack	= bcsr_irq_maskack,
+	.irq_unmask	= bcsr_irq_unmask,
 };
 
 void __init bcsr_init_irq(int csc_start, int csc_end, int hook_irq)
@@ -142,8 +142,8 @@ void __init bcsr_init_irq(int csc_start, int csc_end, int hook_irq)
 	bcsr_csc_base = csc_start;
 
 	for (irq = csc_start; irq <= csc_end; irq++)
-		set_irq_chip_and_handler_name(irq, &bcsr_irq_type,
-			handle_level_irq, "level");
+		irq_set_chip_and_handler_name(irq, &bcsr_irq_type,
+					      handle_level_irq, "level");
 
-	set_irq_chained_handler(hook_irq, bcsr_csc_handler);
+	irq_set_chained_handler(hook_irq, bcsr_csc_handler);
 }
diff --git a/arch/mips/alchemy/devboards/db1200/setup.c b/arch/mips/alchemy/devboards/db1200/setup.c
index 887619547553..4a8980027ecf 100644
--- a/arch/mips/alchemy/devboards/db1200/setup.c
+++ b/arch/mips/alchemy/devboards/db1200/setup.c
@@ -63,20 +63,19 @@ void __init board_setup(void)
 static int __init db1200_arch_init(void)
 {
 	/* GPIO7 is low-level triggered CPLD cascade */
-	set_irq_type(AU1200_GPIO7_INT, IRQF_TRIGGER_LOW);
+	irq_set_irq_type(AU1200_GPIO7_INT, IRQF_TRIGGER_LOW);
 	bcsr_init_irq(DB1200_INT_BEGIN, DB1200_INT_END, AU1200_GPIO7_INT);
 
 	/* insert/eject pairs: one of both is always screaming.  To avoid
 	 * issues they must not be automatically enabled when initially
 	 * requested.
 	 */
-	irq_to_desc(DB1200_SD0_INSERT_INT)->status |= IRQ_NOAUTOEN;
-	irq_to_desc(DB1200_SD0_EJECT_INT)->status |= IRQ_NOAUTOEN;
-	irq_to_desc(DB1200_PC0_INSERT_INT)->status |= IRQ_NOAUTOEN;
-	irq_to_desc(DB1200_PC0_EJECT_INT)->status |= IRQ_NOAUTOEN;
-	irq_to_desc(DB1200_PC1_INSERT_INT)->status |= IRQ_NOAUTOEN;
-	irq_to_desc(DB1200_PC1_EJECT_INT)->status |= IRQ_NOAUTOEN;
-
+	irq_set_status_flags(DB1200_SD0_INSERT_INT, IRQ_NOAUTOEN);
+	irq_set_status_flags(DB1200_SD0_EJECT_INT, IRQ_NOAUTOEN);
+	irq_set_status_flags(DB1200_PC0_INSERT_INT, IRQ_NOAUTOEN);
+	irq_set_status_flags(DB1200_PC0_EJECT_INT, IRQ_NOAUTOEN);
+	irq_set_status_flags(DB1200_PC1_INSERT_INT, IRQ_NOAUTOEN);
+	irq_set_status_flags(DB1200_PC1_EJECT_INT, IRQ_NOAUTOEN);
 	return 0;
 }
 arch_initcall(db1200_arch_init);
diff --git a/arch/mips/alchemy/devboards/db1x00/board_setup.c b/arch/mips/alchemy/devboards/db1x00/board_setup.c
index 9e45971343ed..05f120ff90f9 100644
--- a/arch/mips/alchemy/devboards/db1x00/board_setup.c
+++ b/arch/mips/alchemy/devboards/db1x00/board_setup.c
@@ -215,35 +215,35 @@ void __init board_setup(void)
 static int __init db1x00_init_irq(void)
 {
 #if defined(CONFIG_MIPS_MIRAGE)
-	set_irq_type(AU1500_GPIO7_INT, IRQF_TRIGGER_RISING); /* TS pendown */
+	irq_set_irq_type(AU1500_GPIO7_INT, IRQF_TRIGGER_RISING); /* TS pendown */
 #elif defined(CONFIG_MIPS_DB1550)
-	set_irq_type(AU1550_GPIO0_INT, IRQF_TRIGGER_LOW);  /* CD0# */
-	set_irq_type(AU1550_GPIO1_INT, IRQF_TRIGGER_LOW);  /* CD1# */
-	set_irq_type(AU1550_GPIO3_INT, IRQF_TRIGGER_LOW);  /* CARD0# */
-	set_irq_type(AU1550_GPIO5_INT, IRQF_TRIGGER_LOW);  /* CARD1# */
-	set_irq_type(AU1550_GPIO21_INT, IRQF_TRIGGER_LOW); /* STSCHG0# */
-	set_irq_type(AU1550_GPIO22_INT, IRQF_TRIGGER_LOW); /* STSCHG1# */
+	irq_set_irq_type(AU1550_GPIO0_INT, IRQF_TRIGGER_LOW);  /* CD0# */
+	irq_set_irq_type(AU1550_GPIO1_INT, IRQF_TRIGGER_LOW);  /* CD1# */
+	irq_set_irq_type(AU1550_GPIO3_INT, IRQF_TRIGGER_LOW);  /* CARD0# */
+	irq_set_irq_type(AU1550_GPIO5_INT, IRQF_TRIGGER_LOW);  /* CARD1# */
+	irq_set_irq_type(AU1550_GPIO21_INT, IRQF_TRIGGER_LOW); /* STSCHG0# */
+	irq_set_irq_type(AU1550_GPIO22_INT, IRQF_TRIGGER_LOW); /* STSCHG1# */
 #elif defined(CONFIG_MIPS_DB1500)
-	set_irq_type(AU1500_GPIO0_INT, IRQF_TRIGGER_LOW); /* CD0# */
-	set_irq_type(AU1500_GPIO3_INT, IRQF_TRIGGER_LOW); /* CD1# */
-	set_irq_type(AU1500_GPIO2_INT, IRQF_TRIGGER_LOW); /* CARD0# */
-	set_irq_type(AU1500_GPIO5_INT, IRQF_TRIGGER_LOW); /* CARD1# */
-	set_irq_type(AU1500_GPIO1_INT, IRQF_TRIGGER_LOW); /* STSCHG0# */
-	set_irq_type(AU1500_GPIO4_INT, IRQF_TRIGGER_LOW); /* STSCHG1# */
+	irq_set_irq_type(AU1500_GPIO0_INT, IRQF_TRIGGER_LOW); /* CD0# */
+	irq_set_irq_type(AU1500_GPIO3_INT, IRQF_TRIGGER_LOW); /* CD1# */
+	irq_set_irq_type(AU1500_GPIO2_INT, IRQF_TRIGGER_LOW); /* CARD0# */
+	irq_set_irq_type(AU1500_GPIO5_INT, IRQF_TRIGGER_LOW); /* CARD1# */
+	irq_set_irq_type(AU1500_GPIO1_INT, IRQF_TRIGGER_LOW); /* STSCHG0# */
+	irq_set_irq_type(AU1500_GPIO4_INT, IRQF_TRIGGER_LOW); /* STSCHG1# */
 #elif defined(CONFIG_MIPS_DB1100)
-	set_irq_type(AU1100_GPIO0_INT, IRQF_TRIGGER_LOW); /* CD0# */
-	set_irq_type(AU1100_GPIO3_INT, IRQF_TRIGGER_LOW); /* CD1# */
-	set_irq_type(AU1100_GPIO2_INT, IRQF_TRIGGER_LOW); /* CARD0# */
-	set_irq_type(AU1100_GPIO5_INT, IRQF_TRIGGER_LOW); /* CARD1# */
-	set_irq_type(AU1100_GPIO1_INT, IRQF_TRIGGER_LOW); /* STSCHG0# */
-	set_irq_type(AU1100_GPIO4_INT, IRQF_TRIGGER_LOW); /* STSCHG1# */
+	irq_set_irq_type(AU1100_GPIO0_INT, IRQF_TRIGGER_LOW); /* CD0# */
+	irq_set_irq_type(AU1100_GPIO3_INT, IRQF_TRIGGER_LOW); /* CD1# */
+	irq_set_irq_type(AU1100_GPIO2_INT, IRQF_TRIGGER_LOW); /* CARD0# */
+	irq_set_irq_type(AU1100_GPIO5_INT, IRQF_TRIGGER_LOW); /* CARD1# */
+	irq_set_irq_type(AU1100_GPIO1_INT, IRQF_TRIGGER_LOW); /* STSCHG0# */
+	irq_set_irq_type(AU1100_GPIO4_INT, IRQF_TRIGGER_LOW); /* STSCHG1# */
 #elif defined(CONFIG_MIPS_DB1000)
-	set_irq_type(AU1000_GPIO0_INT, IRQF_TRIGGER_LOW); /* CD0# */
-	set_irq_type(AU1000_GPIO3_INT, IRQF_TRIGGER_LOW); /* CD1# */
-	set_irq_type(AU1000_GPIO2_INT, IRQF_TRIGGER_LOW); /* CARD0# */
-	set_irq_type(AU1000_GPIO5_INT, IRQF_TRIGGER_LOW); /* CARD1# */
-	set_irq_type(AU1000_GPIO1_INT, IRQF_TRIGGER_LOW); /* STSCHG0# */
-	set_irq_type(AU1000_GPIO4_INT, IRQF_TRIGGER_LOW); /* STSCHG1# */
+	irq_set_irq_type(AU1000_GPIO0_INT, IRQF_TRIGGER_LOW); /* CD0# */
+	irq_set_irq_type(AU1000_GPIO3_INT, IRQF_TRIGGER_LOW); /* CD1# */
+	irq_set_irq_type(AU1000_GPIO2_INT, IRQF_TRIGGER_LOW); /* CARD0# */
+	irq_set_irq_type(AU1000_GPIO5_INT, IRQF_TRIGGER_LOW); /* CARD1# */
+	irq_set_irq_type(AU1000_GPIO1_INT, IRQF_TRIGGER_LOW); /* STSCHG0# */
+	irq_set_irq_type(AU1000_GPIO4_INT, IRQF_TRIGGER_LOW); /* STSCHG1# */
 #endif
 	return 0;
 }
diff --git a/arch/mips/alchemy/devboards/pb1000/board_setup.c b/arch/mips/alchemy/devboards/pb1000/board_setup.c
index f6540ec47a64..2d85c4b5be09 100644
--- a/arch/mips/alchemy/devboards/pb1000/board_setup.c
+++ b/arch/mips/alchemy/devboards/pb1000/board_setup.c
@@ -197,7 +197,7 @@ void __init board_setup(void)
 
 static int __init pb1000_init_irq(void)
 {
-	set_irq_type(AU1000_GPIO15_INT, IRQF_TRIGGER_LOW);
+	irq_set_irq_type(AU1000_GPIO15_INT, IRQF_TRIGGER_LOW);
 	return 0;
 }
 arch_initcall(pb1000_init_irq);
diff --git a/arch/mips/alchemy/devboards/pb1100/board_setup.c b/arch/mips/alchemy/devboards/pb1100/board_setup.c
index 90dda5f3ecc5..d108fd573aaf 100644
--- a/arch/mips/alchemy/devboards/pb1100/board_setup.c
+++ b/arch/mips/alchemy/devboards/pb1100/board_setup.c
@@ -117,10 +117,10 @@ void __init board_setup(void)
 
 static int __init pb1100_init_irq(void)
 {
-	set_irq_type(AU1100_GPIO9_INT,  IRQF_TRIGGER_LOW); /* PCCD# */
-	set_irq_type(AU1100_GPIO10_INT, IRQF_TRIGGER_LOW); /* PCSTSCHG# */
-	set_irq_type(AU1100_GPIO11_INT, IRQF_TRIGGER_LOW); /* PCCard# */
-	set_irq_type(AU1100_GPIO13_INT, IRQF_TRIGGER_LOW); /* DC_IRQ# */
+	irq_set_irq_type(AU1100_GPIO9_INT, IRQF_TRIGGER_LOW); /* PCCD# */
+	irq_set_irq_type(AU1100_GPIO10_INT, IRQF_TRIGGER_LOW); /* PCSTSCHG# */
+	irq_set_irq_type(AU1100_GPIO11_INT, IRQF_TRIGGER_LOW); /* PCCard# */
+	irq_set_irq_type(AU1100_GPIO13_INT, IRQF_TRIGGER_LOW); /* DC_IRQ# */
 
 	return 0;
 }
diff --git a/arch/mips/alchemy/devboards/pb1200/board_setup.c b/arch/mips/alchemy/devboards/pb1200/board_setup.c
index 8b4466f2d44a..6d06b07c2381 100644
--- a/arch/mips/alchemy/devboards/pb1200/board_setup.c
+++ b/arch/mips/alchemy/devboards/pb1200/board_setup.c
@@ -142,7 +142,7 @@ static int __init pb1200_init_irq(void)
 		panic("Game over.  Your score is 0.");
 	}
 
-	set_irq_type(AU1200_GPIO7_INT, IRQF_TRIGGER_LOW);
+	irq_set_irq_type(AU1200_GPIO7_INT, IRQF_TRIGGER_LOW);
 	bcsr_init_irq(PB1200_INT_BEGIN, PB1200_INT_END, AU1200_GPIO7_INT);
 
 	return 0;
diff --git a/arch/mips/alchemy/devboards/pb1500/board_setup.c b/arch/mips/alchemy/devboards/pb1500/board_setup.c
index 9cd9dfa698e7..83f46215eb0c 100644
--- a/arch/mips/alchemy/devboards/pb1500/board_setup.c
+++ b/arch/mips/alchemy/devboards/pb1500/board_setup.c
@@ -134,14 +134,14 @@ void __init board_setup(void)
 
 static int __init pb1500_init_irq(void)
 {
-	set_irq_type(AU1500_GPIO9_INT, IRQF_TRIGGER_LOW);   /* CD0# */
-	set_irq_type(AU1500_GPIO10_INT, IRQF_TRIGGER_LOW);  /* CARD0 */
-	set_irq_type(AU1500_GPIO11_INT, IRQF_TRIGGER_LOW);  /* STSCHG0# */
-	set_irq_type(AU1500_GPIO204_INT, IRQF_TRIGGER_HIGH);
-	set_irq_type(AU1500_GPIO201_INT, IRQF_TRIGGER_LOW);
-	set_irq_type(AU1500_GPIO202_INT, IRQF_TRIGGER_LOW);
-	set_irq_type(AU1500_GPIO203_INT, IRQF_TRIGGER_LOW);
-	set_irq_type(AU1500_GPIO205_INT, IRQF_TRIGGER_LOW);
+	irq_set_irq_type(AU1500_GPIO9_INT, IRQF_TRIGGER_LOW);   /* CD0# */
+	irq_set_irq_type(AU1500_GPIO10_INT, IRQF_TRIGGER_LOW);  /* CARD0 */
+	irq_set_irq_type(AU1500_GPIO11_INT, IRQF_TRIGGER_LOW);  /* STSCHG0# */
+	irq_set_irq_type(AU1500_GPIO204_INT, IRQF_TRIGGER_HIGH);
+	irq_set_irq_type(AU1500_GPIO201_INT, IRQF_TRIGGER_LOW);
+	irq_set_irq_type(AU1500_GPIO202_INT, IRQF_TRIGGER_LOW);
+	irq_set_irq_type(AU1500_GPIO203_INT, IRQF_TRIGGER_LOW);
+	irq_set_irq_type(AU1500_GPIO205_INT, IRQF_TRIGGER_LOW);
 
 	return 0;
 }
diff --git a/arch/mips/alchemy/devboards/pb1550/board_setup.c b/arch/mips/alchemy/devboards/pb1550/board_setup.c
index 9d7d6edafa8d..b790213848bd 100644
--- a/arch/mips/alchemy/devboards/pb1550/board_setup.c
+++ b/arch/mips/alchemy/devboards/pb1550/board_setup.c
@@ -73,9 +73,9 @@ void __init board_setup(void)
 
 static int __init pb1550_init_irq(void)
 {
-	set_irq_type(AU1550_GPIO0_INT, IRQF_TRIGGER_LOW);
-	set_irq_type(AU1550_GPIO1_INT, IRQF_TRIGGER_LOW);
-	set_irq_type(AU1550_GPIO201_205_INT, IRQF_TRIGGER_HIGH);
+	irq_set_irq_type(AU1550_GPIO0_INT, IRQF_TRIGGER_LOW);
+	irq_set_irq_type(AU1550_GPIO1_INT, IRQF_TRIGGER_LOW);
+	irq_set_irq_type(AU1550_GPIO201_205_INT, IRQF_TRIGGER_HIGH);
 
 	/* enable both PCMCIA card irqs in the shared line */
 	alchemy_gpio2_enable_int(201);
diff --git a/arch/mips/alchemy/mtx-1/board_setup.c b/arch/mips/alchemy/mtx-1/board_setup.c
index 40b84b991191..cf436ab679ae 100644
--- a/arch/mips/alchemy/mtx-1/board_setup.c
+++ b/arch/mips/alchemy/mtx-1/board_setup.c
@@ -123,11 +123,11 @@ mtx1_pci_idsel(unsigned int devsel, int assert)
 
 static int __init mtx1_init_irq(void)
 {
-	set_irq_type(AU1500_GPIO204_INT, IRQF_TRIGGER_HIGH);
-	set_irq_type(AU1500_GPIO201_INT, IRQF_TRIGGER_LOW);
-	set_irq_type(AU1500_GPIO202_INT, IRQF_TRIGGER_LOW);
-	set_irq_type(AU1500_GPIO203_INT, IRQF_TRIGGER_LOW);
-	set_irq_type(AU1500_GPIO205_INT, IRQF_TRIGGER_LOW);
+	irq_set_irq_type(AU1500_GPIO204_INT, IRQF_TRIGGER_HIGH);
+	irq_set_irq_type(AU1500_GPIO201_INT, IRQF_TRIGGER_LOW);
+	irq_set_irq_type(AU1500_GPIO202_INT, IRQF_TRIGGER_LOW);
+	irq_set_irq_type(AU1500_GPIO203_INT, IRQF_TRIGGER_LOW);
+	irq_set_irq_type(AU1500_GPIO205_INT, IRQF_TRIGGER_LOW);
 
 	return 0;
 }
diff --git a/arch/mips/alchemy/xxs1500/board_setup.c b/arch/mips/alchemy/xxs1500/board_setup.c
index 80c521e5290d..febfb0fb0896 100644
--- a/arch/mips/alchemy/xxs1500/board_setup.c
+++ b/arch/mips/alchemy/xxs1500/board_setup.c
@@ -85,19 +85,19 @@ void __init board_setup(void)
 
 static int __init xxs1500_init_irq(void)
 {
-	set_irq_type(AU1500_GPIO204_INT, IRQF_TRIGGER_HIGH);
-	set_irq_type(AU1500_GPIO201_INT, IRQF_TRIGGER_LOW);
-	set_irq_type(AU1500_GPIO202_INT, IRQF_TRIGGER_LOW);
-	set_irq_type(AU1500_GPIO203_INT, IRQF_TRIGGER_LOW);
-	set_irq_type(AU1500_GPIO205_INT, IRQF_TRIGGER_LOW);
-	set_irq_type(AU1500_GPIO207_INT, IRQF_TRIGGER_LOW);
+	irq_set_irq_type(AU1500_GPIO204_INT, IRQF_TRIGGER_HIGH);
+	irq_set_irq_type(AU1500_GPIO201_INT, IRQF_TRIGGER_LOW);
+	irq_set_irq_type(AU1500_GPIO202_INT, IRQF_TRIGGER_LOW);
+	irq_set_irq_type(AU1500_GPIO203_INT, IRQF_TRIGGER_LOW);
+	irq_set_irq_type(AU1500_GPIO205_INT, IRQF_TRIGGER_LOW);
+	irq_set_irq_type(AU1500_GPIO207_INT, IRQF_TRIGGER_LOW);
 
-	set_irq_type(AU1500_GPIO0_INT, IRQF_TRIGGER_LOW);
-	set_irq_type(AU1500_GPIO1_INT, IRQF_TRIGGER_LOW);
-	set_irq_type(AU1500_GPIO2_INT, IRQF_TRIGGER_LOW);
-	set_irq_type(AU1500_GPIO3_INT, IRQF_TRIGGER_LOW);
-	set_irq_type(AU1500_GPIO4_INT, IRQF_TRIGGER_LOW); /* CF irq */
-	set_irq_type(AU1500_GPIO5_INT, IRQF_TRIGGER_LOW);
+	irq_set_irq_type(AU1500_GPIO0_INT, IRQF_TRIGGER_LOW);
+	irq_set_irq_type(AU1500_GPIO1_INT, IRQF_TRIGGER_LOW);
+	irq_set_irq_type(AU1500_GPIO2_INT, IRQF_TRIGGER_LOW);
+	irq_set_irq_type(AU1500_GPIO3_INT, IRQF_TRIGGER_LOW);
+	irq_set_irq_type(AU1500_GPIO4_INT, IRQF_TRIGGER_LOW); /* CF irq */
+	irq_set_irq_type(AU1500_GPIO5_INT, IRQF_TRIGGER_LOW);
 
 	return 0;
 }
diff --git a/arch/mips/ar7/irq.c b/arch/mips/ar7/irq.c
index 4ec2642c568f..03db3daadbd8 100644
--- a/arch/mips/ar7/irq.c
+++ b/arch/mips/ar7/irq.c
@@ -49,51 +49,51 @@
 
 static int ar7_irq_base;
 
-static void ar7_unmask_irq(unsigned int irq)
+static void ar7_unmask_irq(struct irq_data *d)
 {
-	writel(1 << ((irq - ar7_irq_base) % 32),
-	       REG(ESR_OFFSET(irq - ar7_irq_base)));
+	writel(1 << ((d->irq - ar7_irq_base) % 32),
+	       REG(ESR_OFFSET(d->irq - ar7_irq_base)));
 }
 
-static void ar7_mask_irq(unsigned int irq)
+static void ar7_mask_irq(struct irq_data *d)
 {
-	writel(1 << ((irq - ar7_irq_base) % 32),
-	       REG(ECR_OFFSET(irq - ar7_irq_base)));
+	writel(1 << ((d->irq - ar7_irq_base) % 32),
+	       REG(ECR_OFFSET(d->irq - ar7_irq_base)));
 }
 
-static void ar7_ack_irq(unsigned int irq)
+static void ar7_ack_irq(struct irq_data *d)
 {
-	writel(1 << ((irq - ar7_irq_base) % 32),
-	       REG(CR_OFFSET(irq - ar7_irq_base)));
+	writel(1 << ((d->irq - ar7_irq_base) % 32),
+	       REG(CR_OFFSET(d->irq - ar7_irq_base)));
 }
 
-static void ar7_unmask_sec_irq(unsigned int irq)
+static void ar7_unmask_sec_irq(struct irq_data *d)
 {
-	writel(1 << (irq - ar7_irq_base - 40), REG(SEC_ESR_OFFSET));
+	writel(1 << (d->irq - ar7_irq_base - 40), REG(SEC_ESR_OFFSET));
 }
 
-static void ar7_mask_sec_irq(unsigned int irq)
+static void ar7_mask_sec_irq(struct irq_data *d)
 {
-	writel(1 << (irq - ar7_irq_base - 40), REG(SEC_ECR_OFFSET));
+	writel(1 << (d->irq - ar7_irq_base - 40), REG(SEC_ECR_OFFSET));
 }
 
-static void ar7_ack_sec_irq(unsigned int irq)
+static void ar7_ack_sec_irq(struct irq_data *d)
 {
-	writel(1 << (irq - ar7_irq_base - 40), REG(SEC_CR_OFFSET));
+	writel(1 << (d->irq - ar7_irq_base - 40), REG(SEC_CR_OFFSET));
 }
 
 static struct irq_chip ar7_irq_type = {
 	.name = "AR7",
-	.unmask = ar7_unmask_irq,
-	.mask = ar7_mask_irq,
-	.ack = ar7_ack_irq
+	.irq_unmask = ar7_unmask_irq,
+	.irq_mask = ar7_mask_irq,
+	.irq_ack = ar7_ack_irq
 };
 
 static struct irq_chip ar7_sec_irq_type = {
 	.name = "AR7",
-	.unmask = ar7_unmask_sec_irq,
-	.mask = ar7_mask_sec_irq,
-	.ack = ar7_ack_sec_irq,
+	.irq_unmask = ar7_unmask_sec_irq,
+	.irq_mask = ar7_mask_sec_irq,
+	.irq_ack = ar7_ack_sec_irq,
 };
 
 static struct irqaction ar7_cascade_action = {
@@ -119,11 +119,11 @@ static void __init ar7_irq_init(int base)
 	for (i = 0; i < 40; i++) {
 		writel(i, REG(CHNL_OFFSET(i)));
 		/* Primary IRQ's */
-		set_irq_chip_and_handler(base + i, &ar7_irq_type,
+		irq_set_chip_and_handler(base + i, &ar7_irq_type,
 					 handle_level_irq);
 		/* Secondary IRQ's */
 		if (i < 32)
-			set_irq_chip_and_handler(base + i + 40,
+			irq_set_chip_and_handler(base + i + 40,
 						 &ar7_sec_irq_type,
 						 handle_level_irq);
 	}
diff --git a/arch/mips/ath79/irq.c b/arch/mips/ath79/irq.c
index 1bf7f719ba53..ac610d5fe3ba 100644
--- a/arch/mips/ath79/irq.c
+++ b/arch/mips/ath79/irq.c
@@ -62,13 +62,12 @@ static void ath79_misc_irq_handler(unsigned int irq, struct irq_desc *desc)
 		spurious_interrupt();
 }
 
-static void ar71xx_misc_irq_unmask(unsigned int irq)
+static void ar71xx_misc_irq_unmask(struct irq_data *d)
 {
+	unsigned int irq = d->irq - ATH79_MISC_IRQ_BASE;
 	void __iomem *base = ath79_reset_base;
 	u32 t;
 
-	irq -= ATH79_MISC_IRQ_BASE;
-
 	t = __raw_readl(base + AR71XX_RESET_REG_MISC_INT_ENABLE);
 	__raw_writel(t | (1 << irq), base + AR71XX_RESET_REG_MISC_INT_ENABLE);
 
@@ -76,13 +75,12 @@ static void ar71xx_misc_irq_unmask(unsigned int irq)
 	__raw_readl(base + AR71XX_RESET_REG_MISC_INT_ENABLE);
 }
 
-static void ar71xx_misc_irq_mask(unsigned int irq)
+static void ar71xx_misc_irq_mask(struct irq_data *d)
 {
+	unsigned int irq = d->irq - ATH79_MISC_IRQ_BASE;
 	void __iomem *base = ath79_reset_base;
 	u32 t;
 
-	irq -= ATH79_MISC_IRQ_BASE;
-
 	t = __raw_readl(base + AR71XX_RESET_REG_MISC_INT_ENABLE);
 	__raw_writel(t & ~(1 << irq), base + AR71XX_RESET_REG_MISC_INT_ENABLE);
 
@@ -90,13 +88,12 @@ static void ar71xx_misc_irq_mask(unsigned int irq)
 	__raw_readl(base + AR71XX_RESET_REG_MISC_INT_ENABLE);
 }
 
-static void ar724x_misc_irq_ack(unsigned int irq)
+static void ar724x_misc_irq_ack(struct irq_data *d)
 {
+	unsigned int irq = d->irq - ATH79_MISC_IRQ_BASE;
 	void __iomem *base = ath79_reset_base;
 	u32 t;
 
-	irq -= ATH79_MISC_IRQ_BASE;
-
 	t = __raw_readl(base + AR71XX_RESET_REG_MISC_INT_STATUS);
 	__raw_writel(t & ~(1 << irq), base + AR71XX_RESET_REG_MISC_INT_STATUS);
 
@@ -106,8 +103,8 @@ static void ar724x_misc_irq_ack(unsigned int irq)
 
 static struct irq_chip ath79_misc_irq_chip = {
 	.name		= "MISC",
-	.unmask		= ar71xx_misc_irq_unmask,
-	.mask		= ar71xx_misc_irq_mask,
+	.irq_unmask	= ar71xx_misc_irq_unmask,
+	.irq_mask	= ar71xx_misc_irq_mask,
 };
 
 static void __init ath79_misc_irq_init(void)
@@ -119,20 +116,19 @@ static void __init ath79_misc_irq_init(void)
 	__raw_writel(0, base + AR71XX_RESET_REG_MISC_INT_STATUS);
 
 	if (soc_is_ar71xx() || soc_is_ar913x())
-		ath79_misc_irq_chip.mask_ack = ar71xx_misc_irq_mask;
+		ath79_misc_irq_chip.irq_mask_ack = ar71xx_misc_irq_mask;
 	else if (soc_is_ar724x())
-		ath79_misc_irq_chip.ack = ar724x_misc_irq_ack;
+		ath79_misc_irq_chip.irq_ack = ar724x_misc_irq_ack;
 	else
 		BUG();
 
 	for (i = ATH79_MISC_IRQ_BASE;
 	     i < ATH79_MISC_IRQ_BASE + ATH79_MISC_IRQ_COUNT; i++) {
-		irq_desc[i].status = IRQ_DISABLED;
-		set_irq_chip_and_handler(i, &ath79_misc_irq_chip,
+		irq_set_chip_and_handler(i, &ath79_misc_irq_chip,
 					 handle_level_irq);
 	}
 
-	set_irq_chained_handler(ATH79_CPU_IRQ_MISC, ath79_misc_irq_handler);
+	irq_set_chained_handler(ATH79_CPU_IRQ_MISC, ath79_misc_irq_handler);
 }
 
 asmlinkage void plat_irq_dispatch(void)
diff --git a/arch/mips/bcm63xx/irq.c b/arch/mips/bcm63xx/irq.c
index 3be87f2422f0..cea6021cb8d7 100644
--- a/arch/mips/bcm63xx/irq.c
+++ b/arch/mips/bcm63xx/irq.c
@@ -76,88 +76,80 @@ asmlinkage void plat_irq_dispatch(void)
  * internal IRQs operations: only mask/unmask on PERF irq mask
  * register.
  */
-static inline void bcm63xx_internal_irq_mask(unsigned int irq)
+static inline void bcm63xx_internal_irq_mask(struct irq_data *d)
 {
+	unsigned int irq = d->irq - IRQ_INTERNAL_BASE;
 	u32 mask;
 
-	irq -= IRQ_INTERNAL_BASE;
 	mask = bcm_perf_readl(PERF_IRQMASK_REG);
 	mask &= ~(1 << irq);
 	bcm_perf_writel(mask, PERF_IRQMASK_REG);
 }
 
-static void bcm63xx_internal_irq_unmask(unsigned int irq)
+static void bcm63xx_internal_irq_unmask(struct irq_data *d)
 {
+	unsigned int irq = d->irq - IRQ_INTERNAL_BASE;
 	u32 mask;
 
-	irq -= IRQ_INTERNAL_BASE;
 	mask = bcm_perf_readl(PERF_IRQMASK_REG);
 	mask |= (1 << irq);
 	bcm_perf_writel(mask, PERF_IRQMASK_REG);
 }
 
-static unsigned int bcm63xx_internal_irq_startup(unsigned int irq)
-{
-	bcm63xx_internal_irq_unmask(irq);
-	return 0;
-}
-
 /*
  * external IRQs operations: mask/unmask and clear on PERF external
  * irq control register.
  */
-static void bcm63xx_external_irq_mask(unsigned int irq)
+static void bcm63xx_external_irq_mask(struct irq_data *d)
 {
+	unsigned int irq = d->irq - IRQ_EXT_BASE;
 	u32 reg;
 
-	irq -= IRQ_EXT_BASE;
 	reg = bcm_perf_readl(PERF_EXTIRQ_CFG_REG);
 	reg &= ~EXTIRQ_CFG_MASK(irq);
 	bcm_perf_writel(reg, PERF_EXTIRQ_CFG_REG);
 }
 
-static void bcm63xx_external_irq_unmask(unsigned int irq)
+static void bcm63xx_external_irq_unmask(struct irq_data *d)
 {
+	unsigned int irq = d->irq - IRQ_EXT_BASE;
 	u32 reg;
 
-	irq -= IRQ_EXT_BASE;
 	reg = bcm_perf_readl(PERF_EXTIRQ_CFG_REG);
 	reg |= EXTIRQ_CFG_MASK(irq);
 	bcm_perf_writel(reg, PERF_EXTIRQ_CFG_REG);
 }
 
-static void bcm63xx_external_irq_clear(unsigned int irq)
+static void bcm63xx_external_irq_clear(struct irq_data *d)
 {
+	unsigned int irq = d->irq - IRQ_EXT_BASE;
 	u32 reg;
 
-	irq -= IRQ_EXT_BASE;
 	reg = bcm_perf_readl(PERF_EXTIRQ_CFG_REG);
 	reg |= EXTIRQ_CFG_CLEAR(irq);
 	bcm_perf_writel(reg, PERF_EXTIRQ_CFG_REG);
 }
 
-static unsigned int bcm63xx_external_irq_startup(unsigned int irq)
+static unsigned int bcm63xx_external_irq_startup(struct irq_data *d)
 {
-	set_c0_status(0x100 << (irq - IRQ_MIPS_BASE));
+	set_c0_status(0x100 << (d->irq - IRQ_MIPS_BASE));
 	irq_enable_hazard();
-	bcm63xx_external_irq_unmask(irq);
+	bcm63xx_external_irq_unmask(d);
 	return 0;
 }
 
-static void bcm63xx_external_irq_shutdown(unsigned int irq)
+static void bcm63xx_external_irq_shutdown(struct irq_data *d)
 {
-	bcm63xx_external_irq_mask(irq);
-	clear_c0_status(0x100 << (irq - IRQ_MIPS_BASE));
+	bcm63xx_external_irq_mask(d);
+	clear_c0_status(0x100 << (d->irq - IRQ_MIPS_BASE));
 	irq_disable_hazard();
 }
 
-static int bcm63xx_external_irq_set_type(unsigned int irq,
+static int bcm63xx_external_irq_set_type(struct irq_data *d,
 					 unsigned int flow_type)
 {
+	unsigned int irq = d->irq - IRQ_EXT_BASE;
 	u32 reg;
-	struct irq_desc *desc = irq_desc + irq;
-
-	irq -= IRQ_EXT_BASE;
 
 	flow_type &= IRQ_TYPE_SENSE_MASK;
 
@@ -199,37 +191,32 @@ static int bcm63xx_external_irq_set_type(unsigned int irq,
 	}
 	bcm_perf_writel(reg, PERF_EXTIRQ_CFG_REG);
 
-	if (flow_type & (IRQ_TYPE_LEVEL_LOW | IRQ_TYPE_LEVEL_HIGH))  {
-		desc->status |= IRQ_LEVEL;
-		desc->handle_irq = handle_level_irq;
-	} else {
-		desc->handle_irq = handle_edge_irq;
-	}
+	irqd_set_trigger_type(d, flow_type);
+	if (flow_type & (IRQ_TYPE_LEVEL_LOW | IRQ_TYPE_LEVEL_HIGH))
+		__irq_set_handler_locked(d->irq, handle_level_irq);
+	else
+		__irq_set_handler_locked(d->irq, handle_edge_irq);
 
-	return 0;
+	return IRQ_SET_MASK_OK_NOCOPY;
 }
 
 static struct irq_chip bcm63xx_internal_irq_chip = {
 	.name		= "bcm63xx_ipic",
-	.startup	= bcm63xx_internal_irq_startup,
-	.shutdown	= bcm63xx_internal_irq_mask,
-
-	.mask		= bcm63xx_internal_irq_mask,
-	.mask_ack	= bcm63xx_internal_irq_mask,
-	.unmask		= bcm63xx_internal_irq_unmask,
+	.irq_mask	= bcm63xx_internal_irq_mask,
+	.irq_unmask	= bcm63xx_internal_irq_unmask,
 };
 
 static struct irq_chip bcm63xx_external_irq_chip = {
 	.name		= "bcm63xx_epic",
-	.startup	= bcm63xx_external_irq_startup,
-	.shutdown	= bcm63xx_external_irq_shutdown,
+	.irq_startup	= bcm63xx_external_irq_startup,
+	.irq_shutdown	= bcm63xx_external_irq_shutdown,
 
-	.ack		= bcm63xx_external_irq_clear,
+	.irq_ack	= bcm63xx_external_irq_clear,
 
-	.mask		= bcm63xx_external_irq_mask,
-	.unmask		= bcm63xx_external_irq_unmask,
+	.irq_mask	= bcm63xx_external_irq_mask,
+	.irq_unmask	= bcm63xx_external_irq_unmask,
 
-	.set_type	= bcm63xx_external_irq_set_type,
+	.irq_set_type	= bcm63xx_external_irq_set_type,
 };
 
 static struct irqaction cpu_ip2_cascade_action = {
@@ -243,11 +230,11 @@ void __init arch_init_irq(void)
 
 	mips_cpu_irq_init();
 	for (i = IRQ_INTERNAL_BASE; i < NR_IRQS; ++i)
-		set_irq_chip_and_handler(i, &bcm63xx_internal_irq_chip,
+		irq_set_chip_and_handler(i, &bcm63xx_internal_irq_chip,
 					 handle_level_irq);
 
 	for (i = IRQ_EXT_BASE; i < IRQ_EXT_BASE + 4; ++i)
-		set_irq_chip_and_handler(i, &bcm63xx_external_irq_chip,
+		irq_set_chip_and_handler(i, &bcm63xx_external_irq_chip,
 					 handle_edge_irq);
 
 	setup_irq(IRQ_MIPS_BASE + 2, &cpu_ip2_cascade_action);
diff --git a/arch/mips/cavium-octeon/executive/octeon-model.c b/arch/mips/cavium-octeon/executive/octeon-model.c
index 9afc3794ed1b..c8d35684504e 100644
--- a/arch/mips/cavium-octeon/executive/octeon-model.c
+++ b/arch/mips/cavium-octeon/executive/octeon-model.c
@@ -75,7 +75,7 @@ const char *octeon_model_get_string_buffer(uint32_t chip_id, char *buffer)
 
 	num_cores = cvmx_octeon_num_cores();
 
-	/* Make sure the non existant devices look disabled */
+	/* Make sure the non existent devices look disabled */
 	switch ((chip_id >> 8) & 0xff) {
 	case 6:		/* CN50XX */
 	case 2:		/* CN30XX */
diff --git a/arch/mips/cavium-octeon/octeon-irq.c b/arch/mips/cavium-octeon/octeon-irq.c
index ce7500cdf5b7..ffd4ae660f79 100644
--- a/arch/mips/cavium-octeon/octeon-irq.c
+++ b/arch/mips/cavium-octeon/octeon-irq.c
@@ -3,10 +3,13 @@
  * License.  See the file "COPYING" in the main directory of this archive
  * for more details.
  *
- * Copyright (C) 2004-2008, 2009, 2010 Cavium Networks
+ * Copyright (C) 2004-2008, 2009, 2010, 2011 Cavium Networks
  */
-#include <linux/irq.h>
+
 #include <linux/interrupt.h>
+#include <linux/bitops.h>
+#include <linux/percpu.h>
+#include <linux/irq.h>
 #include <linux/smp.h>
 
 #include <asm/octeon/octeon.h>
@@ -14,6 +17,47 @@
 static DEFINE_RAW_SPINLOCK(octeon_irq_ciu0_lock);
 static DEFINE_RAW_SPINLOCK(octeon_irq_ciu1_lock);
 
+static DEFINE_PER_CPU(unsigned long, octeon_irq_ciu0_en_mirror);
+static DEFINE_PER_CPU(unsigned long, octeon_irq_ciu1_en_mirror);
+
+static __read_mostly u8 octeon_irq_ciu_to_irq[8][64];
+
+union octeon_ciu_chip_data {
+	void *p;
+	unsigned long l;
+	struct {
+		unsigned int line:6;
+		unsigned int bit:6;
+	} s;
+};
+
+struct octeon_core_chip_data {
+	struct mutex core_irq_mutex;
+	bool current_en;
+	bool desired_en;
+	u8 bit;
+};
+
+#define MIPS_CORE_IRQ_LINES 8
+
+static struct octeon_core_chip_data octeon_irq_core_chip_data[MIPS_CORE_IRQ_LINES];
+
+static void __init octeon_irq_set_ciu_mapping(int irq, int line, int bit,
+					      struct irq_chip *chip,
+					      irq_flow_handler_t handler)
+{
+	union octeon_ciu_chip_data cd;
+
+	irq_set_chip_and_handler(irq, chip, handler);
+
+	cd.l = 0;
+	cd.s.line = line;
+	cd.s.bit = bit;
+
+	irq_set_chip_data(irq, cd.p);
+	octeon_irq_ciu_to_irq[line][bit] = irq;
+}
+
 static int octeon_coreid_for_cpu(int cpu)
 {
 #ifdef CONFIG_SMP
@@ -23,9 +67,20 @@ static int octeon_coreid_for_cpu(int cpu)
 #endif
 }
 
-static void octeon_irq_core_ack(unsigned int irq)
+static int octeon_cpu_for_coreid(int coreid)
+{
+#ifdef CONFIG_SMP
+	return cpu_number_map(coreid);
+#else
+	return smp_processor_id();
+#endif
+}
+
+static void octeon_irq_core_ack(struct irq_data *data)
 {
-	unsigned int bit = irq - OCTEON_IRQ_SW0;
+	struct octeon_core_chip_data *cd = irq_data_get_irq_chip_data(data);
+	unsigned int bit = cd->bit;
+
 	/*
 	 * We don't need to disable IRQs to make these atomic since
 	 * they are already disabled earlier in the low level
@@ -37,131 +92,121 @@ static void octeon_irq_core_ack(unsigned int irq)
 		clear_c0_cause(0x100 << bit);
 }
 
-static void octeon_irq_core_eoi(unsigned int irq)
+static void octeon_irq_core_eoi(struct irq_data *data)
 {
-	struct irq_desc *desc = irq_to_desc(irq);
-	unsigned int bit = irq - OCTEON_IRQ_SW0;
-	/*
-	 * If an IRQ is being processed while we are disabling it the
-	 * handler will attempt to unmask the interrupt after it has
-	 * been disabled.
-	 */
-	if ((unlikely(desc->status & IRQ_DISABLED)))
-		return;
+	struct octeon_core_chip_data *cd = irq_data_get_irq_chip_data(data);
+
 	/*
 	 * We don't need to disable IRQs to make these atomic since
 	 * they are already disabled earlier in the low level
 	 * interrupt code.
 	 */
-	set_c0_status(0x100 << bit);
+	set_c0_status(0x100 << cd->bit);
 }
 
-static void octeon_irq_core_enable(unsigned int irq)
+static void octeon_irq_core_set_enable_local(void *arg)
 {
-	unsigned long flags;
-	unsigned int bit = irq - OCTEON_IRQ_SW0;
+	struct irq_data *data = arg;
+	struct octeon_core_chip_data *cd = irq_data_get_irq_chip_data(data);
+	unsigned int mask = 0x100 << cd->bit;
 
 	/*
-	 * We need to disable interrupts to make sure our updates are
-	 * atomic.
+	 * Interrupts are already disabled, so these are atomic.
 	 */
-	local_irq_save(flags);
-	set_c0_status(0x100 << bit);
-	local_irq_restore(flags);
+	if (cd->desired_en)
+		set_c0_status(mask);
+	else
+		clear_c0_status(mask);
+
 }
 
-static void octeon_irq_core_disable_local(unsigned int irq)
+static void octeon_irq_core_disable(struct irq_data *data)
 {
-	unsigned long flags;
-	unsigned int bit = irq - OCTEON_IRQ_SW0;
-	/*
-	 * We need to disable interrupts to make sure our updates are
-	 * atomic.
-	 */
-	local_irq_save(flags);
-	clear_c0_status(0x100 << bit);
-	local_irq_restore(flags);
+	struct octeon_core_chip_data *cd = irq_data_get_irq_chip_data(data);
+	cd->desired_en = false;
 }
 
-static void octeon_irq_core_disable(unsigned int irq)
+static void octeon_irq_core_enable(struct irq_data *data)
 {
-#ifdef CONFIG_SMP
-	on_each_cpu((void (*)(void *)) octeon_irq_core_disable_local,
-		    (void *) (long) irq, 1);
-#else
-	octeon_irq_core_disable_local(irq);
-#endif
+	struct octeon_core_chip_data *cd = irq_data_get_irq_chip_data(data);
+	cd->desired_en = true;
 }
 
-static struct irq_chip octeon_irq_chip_core = {
-	.name = "Core",
-	.enable = octeon_irq_core_enable,
-	.disable = octeon_irq_core_disable,
-	.ack = octeon_irq_core_ack,
-	.eoi = octeon_irq_core_eoi,
-};
+static void octeon_irq_core_bus_lock(struct irq_data *data)
+{
+	struct octeon_core_chip_data *cd = irq_data_get_irq_chip_data(data);
 
+	mutex_lock(&cd->core_irq_mutex);
+}
 
-static void octeon_irq_ciu0_ack(unsigned int irq)
+static void octeon_irq_core_bus_sync_unlock(struct irq_data *data)
 {
-	switch (irq) {
-	case OCTEON_IRQ_GMX_DRP0:
-	case OCTEON_IRQ_GMX_DRP1:
-	case OCTEON_IRQ_IPD_DRP:
-	case OCTEON_IRQ_KEY_ZERO:
-	case OCTEON_IRQ_TIMER0:
-	case OCTEON_IRQ_TIMER1:
-	case OCTEON_IRQ_TIMER2:
-	case OCTEON_IRQ_TIMER3:
-	{
-		int index = cvmx_get_core_num() * 2;
-		u64 mask = 1ull << (irq - OCTEON_IRQ_WORKQ0);
-		/*
-		 * CIU timer type interrupts must be acknoleged by
-		 * writing a '1' bit to their sum0 bit.
-		 */
-		cvmx_write_csr(CVMX_CIU_INTX_SUM0(index), mask);
-		break;
-	}
-	default:
-		break;
+	struct octeon_core_chip_data *cd = irq_data_get_irq_chip_data(data);
+
+	if (cd->desired_en != cd->current_en) {
+		on_each_cpu(octeon_irq_core_set_enable_local, data, 1);
+
+		cd->current_en = cd->desired_en;
 	}
 
-	/*
-	 * In order to avoid any locking accessing the CIU, we
-	 * acknowledge CIU interrupts by disabling all of them.  This
-	 * way we can use a per core register and avoid any out of
-	 * core locking requirements.  This has the side affect that
-	 * CIU interrupts can't be processed recursively.
-	 *
-	 * We don't need to disable IRQs to make these atomic since
-	 * they are already disabled earlier in the low level
-	 * interrupt code.
-	 */
-	clear_c0_status(0x100 << 2);
+	mutex_unlock(&cd->core_irq_mutex);
 }
 
-static void octeon_irq_ciu0_eoi(unsigned int irq)
+static struct irq_chip octeon_irq_chip_core = {
+	.name = "Core",
+	.irq_enable = octeon_irq_core_enable,
+	.irq_disable = octeon_irq_core_disable,
+	.irq_ack = octeon_irq_core_ack,
+	.irq_eoi = octeon_irq_core_eoi,
+	.irq_bus_lock = octeon_irq_core_bus_lock,
+	.irq_bus_sync_unlock = octeon_irq_core_bus_sync_unlock,
+
+	.irq_cpu_online = octeon_irq_core_eoi,
+	.irq_cpu_offline = octeon_irq_core_ack,
+	.flags = IRQCHIP_ONOFFLINE_ENABLED,
+};
+
+static void __init octeon_irq_init_core(void)
 {
-	/*
-	 * Enable all CIU interrupts again.  We don't need to disable
-	 * IRQs to make these atomic since they are already disabled
-	 * earlier in the low level interrupt code.
-	 */
-	set_c0_status(0x100 << 2);
+	int i;
+	int irq;
+	struct octeon_core_chip_data *cd;
+
+	for (i = 0; i < MIPS_CORE_IRQ_LINES; i++) {
+		cd = &octeon_irq_core_chip_data[i];
+		cd->current_en = false;
+		cd->desired_en = false;
+		cd->bit = i;
+		mutex_init(&cd->core_irq_mutex);
+
+		irq = OCTEON_IRQ_SW0 + i;
+		switch (irq) {
+		case OCTEON_IRQ_TIMER:
+		case OCTEON_IRQ_SW0:
+		case OCTEON_IRQ_SW1:
+		case OCTEON_IRQ_5:
+		case OCTEON_IRQ_PERF:
+			irq_set_chip_data(irq, cd);
+			irq_set_chip_and_handler(irq, &octeon_irq_chip_core,
+						 handle_percpu_irq);
+			break;
+		default:
+			break;
+		}
+	}
 }
 
-static int next_coreid_for_irq(struct irq_desc *desc)
+static int next_cpu_for_irq(struct irq_data *data)
 {
 
 #ifdef CONFIG_SMP
-	int coreid;
-	int weight = cpumask_weight(desc->affinity);
+	int cpu;
+	int weight = cpumask_weight(data->affinity);
 
 	if (weight > 1) {
-		int cpu = smp_processor_id();
+		cpu = smp_processor_id();
 		for (;;) {
-			cpu = cpumask_next(cpu, desc->affinity);
+			cpu = cpumask_next(cpu, data->affinity);
 			if (cpu >= nr_cpu_ids) {
 				cpu = -1;
 				continue;
@@ -169,83 +214,175 @@ static int next_coreid_for_irq(struct irq_desc *desc)
 				break;
 			}
 		}
-		coreid = octeon_coreid_for_cpu(cpu);
 	} else if (weight == 1) {
-		coreid = octeon_coreid_for_cpu(cpumask_first(desc->affinity));
+		cpu = cpumask_first(data->affinity);
 	} else {
-		coreid = cvmx_get_core_num();
+		cpu = smp_processor_id();
 	}
-	return coreid;
+	return cpu;
 #else
-	return cvmx_get_core_num();
+	return smp_processor_id();
 #endif
 }
 
-static void octeon_irq_ciu0_enable(unsigned int irq)
+static void octeon_irq_ciu_enable(struct irq_data *data)
 {
-	struct irq_desc *desc = irq_to_desc(irq);
-	int coreid = next_coreid_for_irq(desc);
+	int cpu = next_cpu_for_irq(data);
+	int coreid = octeon_coreid_for_cpu(cpu);
+	unsigned long *pen;
 	unsigned long flags;
-	uint64_t en0;
-	int bit = irq - OCTEON_IRQ_WORKQ0;	/* Bit 0-63 of EN0 */
+	union octeon_ciu_chip_data cd;
+
+	cd.p = irq_data_get_irq_chip_data(data);
 
-	raw_spin_lock_irqsave(&octeon_irq_ciu0_lock, flags);
-	en0 = cvmx_read_csr(CVMX_CIU_INTX_EN0(coreid * 2));
-	en0 |= 1ull << bit;
-	cvmx_write_csr(CVMX_CIU_INTX_EN0(coreid * 2), en0);
-	cvmx_read_csr(CVMX_CIU_INTX_EN0(coreid * 2));
-	raw_spin_unlock_irqrestore(&octeon_irq_ciu0_lock, flags);
+	if (cd.s.line == 0) {
+		raw_spin_lock_irqsave(&octeon_irq_ciu0_lock, flags);
+		pen = &per_cpu(octeon_irq_ciu0_en_mirror, cpu);
+		set_bit(cd.s.bit, pen);
+		cvmx_write_csr(CVMX_CIU_INTX_EN0(coreid * 2), *pen);
+		raw_spin_unlock_irqrestore(&octeon_irq_ciu0_lock, flags);
+	} else {
+		raw_spin_lock_irqsave(&octeon_irq_ciu1_lock, flags);
+		pen = &per_cpu(octeon_irq_ciu1_en_mirror, cpu);
+		set_bit(cd.s.bit, pen);
+		cvmx_write_csr(CVMX_CIU_INTX_EN1(coreid * 2 + 1), *pen);
+		raw_spin_unlock_irqrestore(&octeon_irq_ciu1_lock, flags);
+	}
 }
 
-static void octeon_irq_ciu0_enable_mbox(unsigned int irq)
+static void octeon_irq_ciu_enable_local(struct irq_data *data)
 {
-	int coreid = cvmx_get_core_num();
+	unsigned long *pen;
+	unsigned long flags;
+	union octeon_ciu_chip_data cd;
+
+	cd.p = irq_data_get_irq_chip_data(data);
+
+	if (cd.s.line == 0) {
+		raw_spin_lock_irqsave(&octeon_irq_ciu0_lock, flags);
+		pen = &__get_cpu_var(octeon_irq_ciu0_en_mirror);
+		set_bit(cd.s.bit, pen);
+		cvmx_write_csr(CVMX_CIU_INTX_EN0(cvmx_get_core_num() * 2), *pen);
+		raw_spin_unlock_irqrestore(&octeon_irq_ciu0_lock, flags);
+	} else {
+		raw_spin_lock_irqsave(&octeon_irq_ciu1_lock, flags);
+		pen = &__get_cpu_var(octeon_irq_ciu1_en_mirror);
+		set_bit(cd.s.bit, pen);
+		cvmx_write_csr(CVMX_CIU_INTX_EN1(cvmx_get_core_num() * 2 + 1), *pen);
+		raw_spin_unlock_irqrestore(&octeon_irq_ciu1_lock, flags);
+	}
+}
+
+static void octeon_irq_ciu_disable_local(struct irq_data *data)
+{
+	unsigned long *pen;
 	unsigned long flags;
-	uint64_t en0;
-	int bit = irq - OCTEON_IRQ_WORKQ0;	/* Bit 0-63 of EN0 */
+	union octeon_ciu_chip_data cd;
+
+	cd.p = irq_data_get_irq_chip_data(data);
 
-	raw_spin_lock_irqsave(&octeon_irq_ciu0_lock, flags);
-	en0 = cvmx_read_csr(CVMX_CIU_INTX_EN0(coreid * 2));
-	en0 |= 1ull << bit;
-	cvmx_write_csr(CVMX_CIU_INTX_EN0(coreid * 2), en0);
-	cvmx_read_csr(CVMX_CIU_INTX_EN0(coreid * 2));
-	raw_spin_unlock_irqrestore(&octeon_irq_ciu0_lock, flags);
+	if (cd.s.line == 0) {
+		raw_spin_lock_irqsave(&octeon_irq_ciu0_lock, flags);
+		pen = &__get_cpu_var(octeon_irq_ciu0_en_mirror);
+		clear_bit(cd.s.bit, pen);
+		cvmx_write_csr(CVMX_CIU_INTX_EN0(cvmx_get_core_num() * 2), *pen);
+		raw_spin_unlock_irqrestore(&octeon_irq_ciu0_lock, flags);
+	} else {
+		raw_spin_lock_irqsave(&octeon_irq_ciu1_lock, flags);
+		pen = &__get_cpu_var(octeon_irq_ciu1_en_mirror);
+		clear_bit(cd.s.bit, pen);
+		cvmx_write_csr(CVMX_CIU_INTX_EN1(cvmx_get_core_num() * 2 + 1), *pen);
+		raw_spin_unlock_irqrestore(&octeon_irq_ciu1_lock, flags);
+	}
 }
 
-static void octeon_irq_ciu0_disable(unsigned int irq)
+static void octeon_irq_ciu_disable_all(struct irq_data *data)
 {
-	int bit = irq - OCTEON_IRQ_WORKQ0;	/* Bit 0-63 of EN0 */
 	unsigned long flags;
-	uint64_t en0;
+	unsigned long *pen;
 	int cpu;
-	raw_spin_lock_irqsave(&octeon_irq_ciu0_lock, flags);
-	for_each_online_cpu(cpu) {
-		int coreid = octeon_coreid_for_cpu(cpu);
-		en0 = cvmx_read_csr(CVMX_CIU_INTX_EN0(coreid * 2));
-		en0 &= ~(1ull << bit);
-		cvmx_write_csr(CVMX_CIU_INTX_EN0(coreid * 2), en0);
+	union octeon_ciu_chip_data cd;
+
+	wmb(); /* Make sure flag changes arrive before register updates. */
+
+	cd.p = irq_data_get_irq_chip_data(data);
+
+	if (cd.s.line == 0) {
+		raw_spin_lock_irqsave(&octeon_irq_ciu0_lock, flags);
+		for_each_online_cpu(cpu) {
+			int coreid = octeon_coreid_for_cpu(cpu);
+			pen = &per_cpu(octeon_irq_ciu0_en_mirror, cpu);
+			clear_bit(cd.s.bit, pen);
+			cvmx_write_csr(CVMX_CIU_INTX_EN0(coreid * 2), *pen);
+		}
+		raw_spin_unlock_irqrestore(&octeon_irq_ciu0_lock, flags);
+	} else {
+		raw_spin_lock_irqsave(&octeon_irq_ciu1_lock, flags);
+		for_each_online_cpu(cpu) {
+			int coreid = octeon_coreid_for_cpu(cpu);
+			pen = &per_cpu(octeon_irq_ciu1_en_mirror, cpu);
+			clear_bit(cd.s.bit, pen);
+			cvmx_write_csr(CVMX_CIU_INTX_EN1(coreid * 2 + 1), *pen);
+		}
+		raw_spin_unlock_irqrestore(&octeon_irq_ciu1_lock, flags);
+	}
+}
+
+static void octeon_irq_ciu_enable_all(struct irq_data *data)
+{
+	unsigned long flags;
+	unsigned long *pen;
+	int cpu;
+	union octeon_ciu_chip_data cd;
+
+	cd.p = irq_data_get_irq_chip_data(data);
+
+	if (cd.s.line == 0) {
+		raw_spin_lock_irqsave(&octeon_irq_ciu0_lock, flags);
+		for_each_online_cpu(cpu) {
+			int coreid = octeon_coreid_for_cpu(cpu);
+			pen = &per_cpu(octeon_irq_ciu0_en_mirror, cpu);
+			set_bit(cd.s.bit, pen);
+			cvmx_write_csr(CVMX_CIU_INTX_EN0(coreid * 2), *pen);
+		}
+		raw_spin_unlock_irqrestore(&octeon_irq_ciu0_lock, flags);
+	} else {
+		raw_spin_lock_irqsave(&octeon_irq_ciu1_lock, flags);
+		for_each_online_cpu(cpu) {
+			int coreid = octeon_coreid_for_cpu(cpu);
+			pen = &per_cpu(octeon_irq_ciu1_en_mirror, cpu);
+			set_bit(cd.s.bit, pen);
+			cvmx_write_csr(CVMX_CIU_INTX_EN1(coreid * 2 + 1), *pen);
+		}
+		raw_spin_unlock_irqrestore(&octeon_irq_ciu1_lock, flags);
 	}
-	/*
-	 * We need to do a read after the last update to make sure all
-	 * of them are done.
-	 */
-	cvmx_read_csr(CVMX_CIU_INTX_EN0(cvmx_get_core_num() * 2));
-	raw_spin_unlock_irqrestore(&octeon_irq_ciu0_lock, flags);
 }
 
 /*
  * Enable the irq on the next core in the affinity set for chips that
  * have the EN*_W1{S,C} registers.
  */
-static void octeon_irq_ciu0_enable_v2(unsigned int irq)
+static void octeon_irq_ciu_enable_v2(struct irq_data *data)
 {
-	int index;
-	u64 mask = 1ull << (irq - OCTEON_IRQ_WORKQ0);
-	struct irq_desc *desc = irq_to_desc(irq);
+	u64 mask;
+	int cpu = next_cpu_for_irq(data);
+	union octeon_ciu_chip_data cd;
+
+	cd.p = irq_data_get_irq_chip_data(data);
+	mask = 1ull << (cd.s.bit);
 
-	if ((desc->status & IRQ_DISABLED) == 0) {
-		index = next_coreid_for_irq(desc) * 2;
+	/*
+	 * Called under the desc lock, so these should never get out
+	 * of sync.
+	 */
+	if (cd.s.line == 0) {
+		int index = octeon_coreid_for_cpu(cpu) * 2;
+		set_bit(cd.s.bit, &per_cpu(octeon_irq_ciu0_en_mirror, cpu));
 		cvmx_write_csr(CVMX_CIU_INTX_EN0_W1S(index), mask);
+	} else {
+		int index = octeon_coreid_for_cpu(cpu) * 2 + 1;
+		set_bit(cd.s.bit, &per_cpu(octeon_irq_ciu1_en_mirror, cpu));
+		cvmx_write_csr(CVMX_CIU_INTX_EN1_W1S(index), mask);
 	}
 }
 
@@ -253,83 +390,155 @@ static void octeon_irq_ciu0_enable_v2(unsigned int irq)
  * Enable the irq on the current CPU for chips that
  * have the EN*_W1{S,C} registers.
  */
-static void octeon_irq_ciu0_enable_mbox_v2(unsigned int irq)
+static void octeon_irq_ciu_enable_local_v2(struct irq_data *data)
+{
+	u64 mask;
+	union octeon_ciu_chip_data cd;
+
+	cd.p = irq_data_get_irq_chip_data(data);
+	mask = 1ull << (cd.s.bit);
+
+	if (cd.s.line == 0) {
+		int index = cvmx_get_core_num() * 2;
+		set_bit(cd.s.bit, &__get_cpu_var(octeon_irq_ciu0_en_mirror));
+		cvmx_write_csr(CVMX_CIU_INTX_EN0_W1S(index), mask);
+	} else {
+		int index = cvmx_get_core_num() * 2 + 1;
+		set_bit(cd.s.bit, &__get_cpu_var(octeon_irq_ciu1_en_mirror));
+		cvmx_write_csr(CVMX_CIU_INTX_EN1_W1S(index), mask);
+	}
+}
+
+static void octeon_irq_ciu_disable_local_v2(struct irq_data *data)
 {
-	int index;
-	u64 mask = 1ull << (irq - OCTEON_IRQ_WORKQ0);
+	u64 mask;
+	union octeon_ciu_chip_data cd;
 
-	index = cvmx_get_core_num() * 2;
-	cvmx_write_csr(CVMX_CIU_INTX_EN0_W1S(index), mask);
+	cd.p = irq_data_get_irq_chip_data(data);
+	mask = 1ull << (cd.s.bit);
+
+	if (cd.s.line == 0) {
+		int index = cvmx_get_core_num() * 2;
+		clear_bit(cd.s.bit, &__get_cpu_var(octeon_irq_ciu0_en_mirror));
+		cvmx_write_csr(CVMX_CIU_INTX_EN0_W1C(index), mask);
+	} else {
+		int index = cvmx_get_core_num() * 2 + 1;
+		clear_bit(cd.s.bit, &__get_cpu_var(octeon_irq_ciu1_en_mirror));
+		cvmx_write_csr(CVMX_CIU_INTX_EN1_W1C(index), mask);
+	}
 }
 
 /*
- * Disable the irq on the current core for chips that have the EN*_W1{S,C}
- * registers.
+ * Write to the W1C bit in CVMX_CIU_INTX_SUM0 to clear the irq.
  */
-static void octeon_irq_ciu0_ack_v2(unsigned int irq)
-{
-	int index = cvmx_get_core_num() * 2;
-	u64 mask = 1ull << (irq - OCTEON_IRQ_WORKQ0);
-
-	switch (irq) {
-	case OCTEON_IRQ_GMX_DRP0:
-	case OCTEON_IRQ_GMX_DRP1:
-	case OCTEON_IRQ_IPD_DRP:
-	case OCTEON_IRQ_KEY_ZERO:
-	case OCTEON_IRQ_TIMER0:
-	case OCTEON_IRQ_TIMER1:
-	case OCTEON_IRQ_TIMER2:
-	case OCTEON_IRQ_TIMER3:
-		/*
-		 * CIU timer type interrupts must be acknoleged by
-		 * writing a '1' bit to their sum0 bit.
-		 */
+static void octeon_irq_ciu_ack(struct irq_data *data)
+{
+	u64 mask;
+	union octeon_ciu_chip_data cd;
+
+	cd.p = data->chip_data;
+	mask = 1ull << (cd.s.bit);
+
+	if (cd.s.line == 0) {
+		int index = cvmx_get_core_num() * 2;
 		cvmx_write_csr(CVMX_CIU_INTX_SUM0(index), mask);
-		break;
-	default:
-		break;
+	} else {
+		cvmx_write_csr(CVMX_CIU_INT_SUM1, mask);
 	}
-
-	cvmx_write_csr(CVMX_CIU_INTX_EN0_W1C(index), mask);
 }
 
 /*
- * Enable the irq on the current core for chips that have the EN*_W1{S,C}
+ * Disable the irq on the all cores for chips that have the EN*_W1{S,C}
  * registers.
  */
-static void octeon_irq_ciu0_eoi_mbox_v2(unsigned int irq)
+static void octeon_irq_ciu_disable_all_v2(struct irq_data *data)
 {
-	struct irq_desc *desc = irq_to_desc(irq);
-	int index = cvmx_get_core_num() * 2;
-	u64 mask = 1ull << (irq - OCTEON_IRQ_WORKQ0);
+	int cpu;
+	u64 mask;
+	union octeon_ciu_chip_data cd;
 
-	if (likely((desc->status & IRQ_DISABLED) == 0))
-		cvmx_write_csr(CVMX_CIU_INTX_EN0_W1S(index), mask);
+	wmb(); /* Make sure flag changes arrive before register updates. */
+
+	cd.p = data->chip_data;
+	mask = 1ull << (cd.s.bit);
+
+	if (cd.s.line == 0) {
+		for_each_online_cpu(cpu) {
+			int index = octeon_coreid_for_cpu(cpu) * 2;
+			clear_bit(cd.s.bit, &per_cpu(octeon_irq_ciu0_en_mirror, cpu));
+			cvmx_write_csr(CVMX_CIU_INTX_EN0_W1C(index), mask);
+		}
+	} else {
+		for_each_online_cpu(cpu) {
+			int index = octeon_coreid_for_cpu(cpu) * 2 + 1;
+			clear_bit(cd.s.bit, &per_cpu(octeon_irq_ciu1_en_mirror, cpu));
+			cvmx_write_csr(CVMX_CIU_INTX_EN1_W1C(index), mask);
+		}
+	}
 }
 
 /*
- * Disable the irq on the all cores for chips that have the EN*_W1{S,C}
+ * Enable the irq on the all cores for chips that have the EN*_W1{S,C}
  * registers.
  */
-static void octeon_irq_ciu0_disable_all_v2(unsigned int irq)
+static void octeon_irq_ciu_enable_all_v2(struct irq_data *data)
 {
-	u64 mask = 1ull << (irq - OCTEON_IRQ_WORKQ0);
-	int index;
 	int cpu;
-	for_each_online_cpu(cpu) {
-		index = octeon_coreid_for_cpu(cpu) * 2;
-		cvmx_write_csr(CVMX_CIU_INTX_EN0_W1C(index), mask);
+	u64 mask;
+	union octeon_ciu_chip_data cd;
+
+	cd.p = data->chip_data;
+	mask = 1ull << (cd.s.bit);
+
+	if (cd.s.line == 0) {
+		for_each_online_cpu(cpu) {
+			int index = octeon_coreid_for_cpu(cpu) * 2;
+			set_bit(cd.s.bit, &per_cpu(octeon_irq_ciu0_en_mirror, cpu));
+			cvmx_write_csr(CVMX_CIU_INTX_EN0_W1S(index), mask);
+		}
+	} else {
+		for_each_online_cpu(cpu) {
+			int index = octeon_coreid_for_cpu(cpu) * 2 + 1;
+			set_bit(cd.s.bit, &per_cpu(octeon_irq_ciu1_en_mirror, cpu));
+			cvmx_write_csr(CVMX_CIU_INTX_EN1_W1S(index), mask);
+		}
 	}
 }
 
 #ifdef CONFIG_SMP
-static int octeon_irq_ciu0_set_affinity(unsigned int irq, const struct cpumask *dest)
+
+static void octeon_irq_cpu_offline_ciu(struct irq_data *data)
+{
+	int cpu = smp_processor_id();
+	cpumask_t new_affinity;
+
+	if (!cpumask_test_cpu(cpu, data->affinity))
+		return;
+
+	if (cpumask_weight(data->affinity) > 1) {
+		/*
+		 * It has multi CPU affinity, just remove this CPU
+		 * from the affinity set.
+		 */
+		cpumask_copy(&new_affinity, data->affinity);
+		cpumask_clear_cpu(cpu, &new_affinity);
+	} else {
+		/* Otherwise, put it on lowest numbered online CPU. */
+		cpumask_clear(&new_affinity);
+		cpumask_set_cpu(cpumask_first(cpu_online_mask), &new_affinity);
+	}
+	__irq_set_affinity_locked(data, &new_affinity);
+}
+
+static int octeon_irq_ciu_set_affinity(struct irq_data *data,
+				       const struct cpumask *dest, bool force)
 {
 	int cpu;
-	struct irq_desc *desc = irq_to_desc(irq);
-	int enable_one = (desc->status & IRQ_DISABLED) == 0;
+	bool enable_one = !irqd_irq_disabled(data) && !irqd_irq_masked(data);
 	unsigned long flags;
-	int bit = irq - OCTEON_IRQ_WORKQ0;	/* Bit 0-63 of EN0 */
+	union octeon_ciu_chip_data cd;
+
+	cd.p = data->chip_data;
 
 	/*
 	 * For non-v2 CIU, we will allow only single CPU affinity.
@@ -339,26 +548,40 @@ static int octeon_irq_ciu0_set_affinity(unsigned int irq, const struct cpumask *
 	if (cpumask_weight(dest) != 1)
 		return -EINVAL;
 
-	raw_spin_lock_irqsave(&octeon_irq_ciu0_lock, flags);
-	for_each_online_cpu(cpu) {
-		int coreid = octeon_coreid_for_cpu(cpu);
-		uint64_t en0 =
-			cvmx_read_csr(CVMX_CIU_INTX_EN0(coreid * 2));
-		if (cpumask_test_cpu(cpu, dest) && enable_one) {
-			enable_one = 0;
-			en0 |= 1ull << bit;
-		} else {
-			en0 &= ~(1ull << bit);
+	if (!enable_one)
+		return 0;
+
+	if (cd.s.line == 0) {
+		raw_spin_lock_irqsave(&octeon_irq_ciu0_lock, flags);
+		for_each_online_cpu(cpu) {
+			int coreid = octeon_coreid_for_cpu(cpu);
+			unsigned long *pen = &per_cpu(octeon_irq_ciu0_en_mirror, cpu);
+
+			if (cpumask_test_cpu(cpu, dest) && enable_one) {
+				enable_one = false;
+				set_bit(cd.s.bit, pen);
+			} else {
+				clear_bit(cd.s.bit, pen);
+			}
+			cvmx_write_csr(CVMX_CIU_INTX_EN0(coreid * 2), *pen);
 		}
-		cvmx_write_csr(CVMX_CIU_INTX_EN0(coreid * 2), en0);
+		raw_spin_unlock_irqrestore(&octeon_irq_ciu0_lock, flags);
+	} else {
+		raw_spin_lock_irqsave(&octeon_irq_ciu1_lock, flags);
+		for_each_online_cpu(cpu) {
+			int coreid = octeon_coreid_for_cpu(cpu);
+			unsigned long *pen = &per_cpu(octeon_irq_ciu1_en_mirror, cpu);
+
+			if (cpumask_test_cpu(cpu, dest) && enable_one) {
+				enable_one = false;
+				set_bit(cd.s.bit, pen);
+			} else {
+				clear_bit(cd.s.bit, pen);
+			}
+			cvmx_write_csr(CVMX_CIU_INTX_EN1(coreid * 2 + 1), *pen);
+		}
+		raw_spin_unlock_irqrestore(&octeon_irq_ciu1_lock, flags);
 	}
-	/*
-	 * We need to do a read after the last update to make sure all
-	 * of them are done.
-	 */
-	cvmx_read_csr(CVMX_CIU_INTX_EN0(cvmx_get_core_num() * 2));
-	raw_spin_unlock_irqrestore(&octeon_irq_ciu0_lock, flags);
-
 	return 0;
 }
 
@@ -366,22 +589,46 @@ static int octeon_irq_ciu0_set_affinity(unsigned int irq, const struct cpumask *
  * Set affinity for the irq for chips that have the EN*_W1{S,C}
  * registers.
  */
-static int octeon_irq_ciu0_set_affinity_v2(unsigned int irq,
-					   const struct cpumask *dest)
+static int octeon_irq_ciu_set_affinity_v2(struct irq_data *data,
+					  const struct cpumask *dest,
+					  bool force)
 {
 	int cpu;
-	int index;
-	struct irq_desc *desc = irq_to_desc(irq);
-	int enable_one = (desc->status & IRQ_DISABLED) == 0;
-	u64 mask = 1ull << (irq - OCTEON_IRQ_WORKQ0);
-
-	for_each_online_cpu(cpu) {
-		index = octeon_coreid_for_cpu(cpu) * 2;
-		if (cpumask_test_cpu(cpu, dest) && enable_one) {
-			enable_one = 0;
-			cvmx_write_csr(CVMX_CIU_INTX_EN0_W1S(index), mask);
-		} else {
-			cvmx_write_csr(CVMX_CIU_INTX_EN0_W1C(index), mask);
+	bool enable_one = !irqd_irq_disabled(data) && !irqd_irq_masked(data);
+	u64 mask;
+	union octeon_ciu_chip_data cd;
+
+	if (!enable_one)
+		return 0;
+
+	cd.p = data->chip_data;
+	mask = 1ull << cd.s.bit;
+
+	if (cd.s.line == 0) {
+		for_each_online_cpu(cpu) {
+			unsigned long *pen = &per_cpu(octeon_irq_ciu0_en_mirror, cpu);
+			int index = octeon_coreid_for_cpu(cpu) * 2;
+			if (cpumask_test_cpu(cpu, dest) && enable_one) {
+				enable_one = false;
+				set_bit(cd.s.bit, pen);
+				cvmx_write_csr(CVMX_CIU_INTX_EN0_W1S(index), mask);
+			} else {
+				clear_bit(cd.s.bit, pen);
+				cvmx_write_csr(CVMX_CIU_INTX_EN0_W1C(index), mask);
+			}
+		}
+	} else {
+		for_each_online_cpu(cpu) {
+			unsigned long *pen = &per_cpu(octeon_irq_ciu1_en_mirror, cpu);
+			int index = octeon_coreid_for_cpu(cpu) * 2 + 1;
+			if (cpumask_test_cpu(cpu, dest) && enable_one) {
+				enable_one = false;
+				set_bit(cd.s.bit, pen);
+				cvmx_write_csr(CVMX_CIU_INTX_EN1_W1S(index), mask);
+			} else {
+				clear_bit(cd.s.bit, pen);
+				cvmx_write_csr(CVMX_CIU_INTX_EN1_W1C(index), mask);
+			}
 		}
 	}
 	return 0;
@@ -389,80 +636,102 @@ static int octeon_irq_ciu0_set_affinity_v2(unsigned int irq,
 #endif
 
 /*
+ * The v1 CIU code already masks things, so supply a dummy version to
+ * the core chip code.
+ */
+static void octeon_irq_dummy_mask(struct irq_data *data)
+{
+}
+
+/*
  * Newer octeon chips have support for lockless CIU operation.
  */
-static struct irq_chip octeon_irq_chip_ciu0_v2 = {
-	.name = "CIU0",
-	.enable = octeon_irq_ciu0_enable_v2,
-	.disable = octeon_irq_ciu0_disable_all_v2,
-	.eoi = octeon_irq_ciu0_enable_v2,
+static struct irq_chip octeon_irq_chip_ciu_v2 = {
+	.name = "CIU",
+	.irq_enable = octeon_irq_ciu_enable_v2,
+	.irq_disable = octeon_irq_ciu_disable_all_v2,
+	.irq_mask = octeon_irq_ciu_disable_local_v2,
+	.irq_unmask = octeon_irq_ciu_enable_v2,
 #ifdef CONFIG_SMP
-	.set_affinity = octeon_irq_ciu0_set_affinity_v2,
+	.irq_set_affinity = octeon_irq_ciu_set_affinity_v2,
+	.irq_cpu_offline = octeon_irq_cpu_offline_ciu,
 #endif
 };
 
-static struct irq_chip octeon_irq_chip_ciu0 = {
-	.name = "CIU0",
-	.enable = octeon_irq_ciu0_enable,
-	.disable = octeon_irq_ciu0_disable,
-	.eoi = octeon_irq_ciu0_eoi,
+static struct irq_chip octeon_irq_chip_ciu_edge_v2 = {
+	.name = "CIU-E",
+	.irq_enable = octeon_irq_ciu_enable_v2,
+	.irq_disable = octeon_irq_ciu_disable_all_v2,
+	.irq_ack = octeon_irq_ciu_ack,
+	.irq_mask = octeon_irq_ciu_disable_local_v2,
+	.irq_unmask = octeon_irq_ciu_enable_v2,
 #ifdef CONFIG_SMP
-	.set_affinity = octeon_irq_ciu0_set_affinity,
+	.irq_set_affinity = octeon_irq_ciu_set_affinity_v2,
+	.irq_cpu_offline = octeon_irq_cpu_offline_ciu,
 #endif
 };
 
-/* The mbox versions don't do any affinity or round-robin. */
-static struct irq_chip octeon_irq_chip_ciu0_mbox_v2 = {
-	.name = "CIU0-M",
-	.enable = octeon_irq_ciu0_enable_mbox_v2,
-	.disable = octeon_irq_ciu0_disable,
-	.eoi = octeon_irq_ciu0_eoi_mbox_v2,
+static struct irq_chip octeon_irq_chip_ciu = {
+	.name = "CIU",
+	.irq_enable = octeon_irq_ciu_enable,
+	.irq_disable = octeon_irq_ciu_disable_all,
+	.irq_mask = octeon_irq_dummy_mask,
+#ifdef CONFIG_SMP
+	.irq_set_affinity = octeon_irq_ciu_set_affinity,
+	.irq_cpu_offline = octeon_irq_cpu_offline_ciu,
+#endif
 };
 
-static struct irq_chip octeon_irq_chip_ciu0_mbox = {
-	.name = "CIU0-M",
-	.enable = octeon_irq_ciu0_enable_mbox,
-	.disable = octeon_irq_ciu0_disable,
-	.eoi = octeon_irq_ciu0_eoi,
+static struct irq_chip octeon_irq_chip_ciu_edge = {
+	.name = "CIU-E",
+	.irq_enable = octeon_irq_ciu_enable,
+	.irq_disable = octeon_irq_ciu_disable_all,
+	.irq_mask = octeon_irq_dummy_mask,
+	.irq_ack = octeon_irq_ciu_ack,
+#ifdef CONFIG_SMP
+	.irq_set_affinity = octeon_irq_ciu_set_affinity,
+	.irq_cpu_offline = octeon_irq_cpu_offline_ciu,
+#endif
 };
 
-static void octeon_irq_ciu1_ack(unsigned int irq)
-{
-	/*
-	 * In order to avoid any locking accessing the CIU, we
-	 * acknowledge CIU interrupts by disabling all of them.  This
-	 * way we can use a per core register and avoid any out of
-	 * core locking requirements.  This has the side affect that
-	 * CIU interrupts can't be processed recursively.  We don't
-	 * need to disable IRQs to make these atomic since they are
-	 * already disabled earlier in the low level interrupt code.
-	 */
-	clear_c0_status(0x100 << 3);
-}
+/* The mbox versions don't do any affinity or round-robin. */
+static struct irq_chip octeon_irq_chip_ciu_mbox_v2 = {
+	.name = "CIU-M",
+	.irq_enable = octeon_irq_ciu_enable_all_v2,
+	.irq_disable = octeon_irq_ciu_disable_all_v2,
+	.irq_ack = octeon_irq_ciu_disable_local_v2,
+	.irq_eoi = octeon_irq_ciu_enable_local_v2,
+
+	.irq_cpu_online = octeon_irq_ciu_enable_local_v2,
+	.irq_cpu_offline = octeon_irq_ciu_disable_local_v2,
+	.flags = IRQCHIP_ONOFFLINE_ENABLED,
+};
 
-static void octeon_irq_ciu1_eoi(unsigned int irq)
-{
-	/*
-	 * Enable all CIU interrupts again.  We don't need to disable
-	 * IRQs to make these atomic since they are already disabled
-	 * earlier in the low level interrupt code.
-	 */
-	set_c0_status(0x100 << 3);
-}
+static struct irq_chip octeon_irq_chip_ciu_mbox = {
+	.name = "CIU-M",
+	.irq_enable = octeon_irq_ciu_enable_all,
+	.irq_disable = octeon_irq_ciu_disable_all,
+
+	.irq_cpu_online = octeon_irq_ciu_enable_local,
+	.irq_cpu_offline = octeon_irq_ciu_disable_local,
+	.flags = IRQCHIP_ONOFFLINE_ENABLED,
+};
 
-static void octeon_irq_ciu1_enable(unsigned int irq)
+/*
+ * Watchdog interrupts are special.  They are associated with a single
+ * core, so we hardwire the affinity to that core.
+ */
+static void octeon_irq_ciu_wd_enable(struct irq_data *data)
 {
-	struct irq_desc *desc = irq_to_desc(irq);
-	int coreid = next_coreid_for_irq(desc);
 	unsigned long flags;
-	uint64_t en1;
-	int bit = irq - OCTEON_IRQ_WDOG0;	/* Bit 0-63 of EN1 */
+	unsigned long *pen;
+	int coreid = data->irq - OCTEON_IRQ_WDOG0;	/* Bit 0-63 of EN1 */
+	int cpu = octeon_cpu_for_coreid(coreid);
 
 	raw_spin_lock_irqsave(&octeon_irq_ciu1_lock, flags);
-	en1 = cvmx_read_csr(CVMX_CIU_INTX_EN1(coreid * 2 + 1));
-	en1 |= 1ull << bit;
-	cvmx_write_csr(CVMX_CIU_INTX_EN1(coreid * 2 + 1), en1);
-	cvmx_read_csr(CVMX_CIU_INTX_EN1(coreid * 2 + 1));
+	pen = &per_cpu(octeon_irq_ciu1_en_mirror, cpu);
+	set_bit(coreid, pen);
+	cvmx_write_csr(CVMX_CIU_INTX_EN1(coreid * 2 + 1), *pen);
 	raw_spin_unlock_irqrestore(&octeon_irq_ciu1_lock, flags);
 }
 
@@ -470,286 +739,281 @@ static void octeon_irq_ciu1_enable(unsigned int irq)
  * Watchdog interrupts are special.  They are associated with a single
  * core, so we hardwire the affinity to that core.
  */
-static void octeon_irq_ciu1_wd_enable(unsigned int irq)
+static void octeon_irq_ciu1_wd_enable_v2(struct irq_data *data)
 {
-	unsigned long flags;
-	uint64_t en1;
-	int bit = irq - OCTEON_IRQ_WDOG0;	/* Bit 0-63 of EN1 */
-	int coreid = bit;
+	int coreid = data->irq - OCTEON_IRQ_WDOG0;
+	int cpu = octeon_cpu_for_coreid(coreid);
 
-	raw_spin_lock_irqsave(&octeon_irq_ciu1_lock, flags);
-	en1 = cvmx_read_csr(CVMX_CIU_INTX_EN1(coreid * 2 + 1));
-	en1 |= 1ull << bit;
-	cvmx_write_csr(CVMX_CIU_INTX_EN1(coreid * 2 + 1), en1);
-	cvmx_read_csr(CVMX_CIU_INTX_EN1(coreid * 2 + 1));
-	raw_spin_unlock_irqrestore(&octeon_irq_ciu1_lock, flags);
+	set_bit(coreid, &per_cpu(octeon_irq_ciu1_en_mirror, cpu));
+	cvmx_write_csr(CVMX_CIU_INTX_EN1_W1S(coreid * 2 + 1), 1ull << coreid);
 }
 
-static void octeon_irq_ciu1_disable(unsigned int irq)
+
+static struct irq_chip octeon_irq_chip_ciu_wd_v2 = {
+	.name = "CIU-W",
+	.irq_enable = octeon_irq_ciu1_wd_enable_v2,
+	.irq_disable = octeon_irq_ciu_disable_all_v2,
+	.irq_mask = octeon_irq_ciu_disable_local_v2,
+	.irq_unmask = octeon_irq_ciu_enable_local_v2,
+};
+
+static struct irq_chip octeon_irq_chip_ciu_wd = {
+	.name = "CIU-W",
+	.irq_enable = octeon_irq_ciu_wd_enable,
+	.irq_disable = octeon_irq_ciu_disable_all,
+	.irq_mask = octeon_irq_dummy_mask,
+};
+
+static void octeon_irq_ip2_v1(void)
 {
-	int bit = irq - OCTEON_IRQ_WDOG0;	/* Bit 0-63 of EN1 */
-	unsigned long flags;
-	uint64_t en1;
-	int cpu;
-	raw_spin_lock_irqsave(&octeon_irq_ciu1_lock, flags);
-	for_each_online_cpu(cpu) {
-		int coreid = octeon_coreid_for_cpu(cpu);
-		en1 = cvmx_read_csr(CVMX_CIU_INTX_EN1(coreid * 2 + 1));
-		en1 &= ~(1ull << bit);
-		cvmx_write_csr(CVMX_CIU_INTX_EN1(coreid * 2 + 1), en1);
+	const unsigned long core_id = cvmx_get_core_num();
+	u64 ciu_sum = cvmx_read_csr(CVMX_CIU_INTX_SUM0(core_id * 2));
+
+	ciu_sum &= __get_cpu_var(octeon_irq_ciu0_en_mirror);
+	clear_c0_status(STATUSF_IP2);
+	if (likely(ciu_sum)) {
+		int bit = fls64(ciu_sum) - 1;
+		int irq = octeon_irq_ciu_to_irq[0][bit];
+		if (likely(irq))
+			do_IRQ(irq);
+		else
+			spurious_interrupt();
+	} else {
+		spurious_interrupt();
 	}
-	/*
-	 * We need to do a read after the last update to make sure all
-	 * of them are done.
-	 */
-	cvmx_read_csr(CVMX_CIU_INTX_EN1(cvmx_get_core_num() * 2 + 1));
-	raw_spin_unlock_irqrestore(&octeon_irq_ciu1_lock, flags);
+	set_c0_status(STATUSF_IP2);
 }
 
-/*
- * Enable the irq on the current core for chips that have the EN*_W1{S,C}
- * registers.
- */
-static void octeon_irq_ciu1_enable_v2(unsigned int irq)
+static void octeon_irq_ip2_v2(void)
 {
-	int index;
-	u64 mask = 1ull << (irq - OCTEON_IRQ_WDOG0);
-	struct irq_desc *desc = irq_to_desc(irq);
-
-	if ((desc->status & IRQ_DISABLED) == 0) {
-		index = next_coreid_for_irq(desc) * 2 + 1;
-		cvmx_write_csr(CVMX_CIU_INTX_EN1_W1S(index), mask);
+	const unsigned long core_id = cvmx_get_core_num();
+	u64 ciu_sum = cvmx_read_csr(CVMX_CIU_INTX_SUM0(core_id * 2));
+
+	ciu_sum &= __get_cpu_var(octeon_irq_ciu0_en_mirror);
+	if (likely(ciu_sum)) {
+		int bit = fls64(ciu_sum) - 1;
+		int irq = octeon_irq_ciu_to_irq[0][bit];
+		if (likely(irq))
+			do_IRQ(irq);
+		else
+			spurious_interrupt();
+	} else {
+		spurious_interrupt();
 	}
 }
-
-/*
- * Watchdog interrupts are special.  They are associated with a single
- * core, so we hardwire the affinity to that core.
- */
-static void octeon_irq_ciu1_wd_enable_v2(unsigned int irq)
+static void octeon_irq_ip3_v1(void)
 {
-	int index;
-	int coreid = irq - OCTEON_IRQ_WDOG0;
-	u64 mask = 1ull << (irq - OCTEON_IRQ_WDOG0);
-	struct irq_desc *desc = irq_to_desc(irq);
-
-	if ((desc->status & IRQ_DISABLED) == 0) {
-		index = coreid * 2 + 1;
-		cvmx_write_csr(CVMX_CIU_INTX_EN1_W1S(index), mask);
+	u64 ciu_sum = cvmx_read_csr(CVMX_CIU_INT_SUM1);
+
+	ciu_sum &= __get_cpu_var(octeon_irq_ciu1_en_mirror);
+	clear_c0_status(STATUSF_IP3);
+	if (likely(ciu_sum)) {
+		int bit = fls64(ciu_sum) - 1;
+		int irq = octeon_irq_ciu_to_irq[1][bit];
+		if (likely(irq))
+			do_IRQ(irq);
+		else
+			spurious_interrupt();
+	} else {
+		spurious_interrupt();
 	}
+	set_c0_status(STATUSF_IP3);
 }
 
-/*
- * Disable the irq on the current core for chips that have the EN*_W1{S,C}
- * registers.
- */
-static void octeon_irq_ciu1_ack_v2(unsigned int irq)
+static void octeon_irq_ip3_v2(void)
 {
-	int index = cvmx_get_core_num() * 2 + 1;
-	u64 mask = 1ull << (irq - OCTEON_IRQ_WDOG0);
-
-	cvmx_write_csr(CVMX_CIU_INTX_EN1_W1C(index), mask);
+	u64 ciu_sum = cvmx_read_csr(CVMX_CIU_INT_SUM1);
+
+	ciu_sum &= __get_cpu_var(octeon_irq_ciu1_en_mirror);
+	if (likely(ciu_sum)) {
+		int bit = fls64(ciu_sum) - 1;
+		int irq = octeon_irq_ciu_to_irq[1][bit];
+		if (likely(irq))
+			do_IRQ(irq);
+		else
+			spurious_interrupt();
+	} else {
+		spurious_interrupt();
+	}
 }
 
-/*
- * Disable the irq on the all cores for chips that have the EN*_W1{S,C}
- * registers.
- */
-static void octeon_irq_ciu1_disable_all_v2(unsigned int irq)
+static void octeon_irq_ip4_mask(void)
 {
-	u64 mask = 1ull << (irq - OCTEON_IRQ_WDOG0);
-	int index;
-	int cpu;
-	for_each_online_cpu(cpu) {
-		index = octeon_coreid_for_cpu(cpu) * 2 + 1;
-		cvmx_write_csr(CVMX_CIU_INTX_EN1_W1C(index), mask);
-	}
+	clear_c0_status(STATUSF_IP4);
+	spurious_interrupt();
 }
 
-#ifdef CONFIG_SMP
-static int octeon_irq_ciu1_set_affinity(unsigned int irq,
-					const struct cpumask *dest)
-{
-	int cpu;
-	struct irq_desc *desc = irq_to_desc(irq);
-	int enable_one = (desc->status & IRQ_DISABLED) == 0;
-	unsigned long flags;
-	int bit = irq - OCTEON_IRQ_WDOG0;	/* Bit 0-63 of EN1 */
+static void (*octeon_irq_ip2)(void);
+static void (*octeon_irq_ip3)(void);
+static void (*octeon_irq_ip4)(void);
 
-	/*
-	 * For non-v2 CIU, we will allow only single CPU affinity.
-	 * This removes the need to do locking in the .ack/.eoi
-	 * functions.
-	 */
-	if (cpumask_weight(dest) != 1)
-		return -EINVAL;
+void __cpuinitdata (*octeon_irq_setup_secondary)(void);
 
-	raw_spin_lock_irqsave(&octeon_irq_ciu1_lock, flags);
-	for_each_online_cpu(cpu) {
-		int coreid = octeon_coreid_for_cpu(cpu);
-		uint64_t en1 =
-			cvmx_read_csr(CVMX_CIU_INTX_EN1(coreid * 2 + 1));
-		if (cpumask_test_cpu(cpu, dest) && enable_one) {
-			enable_one = 0;
-			en1 |= 1ull << bit;
-		} else {
-			en1 &= ~(1ull << bit);
-		}
-		cvmx_write_csr(CVMX_CIU_INTX_EN1(coreid * 2 + 1), en1);
-	}
+static void __cpuinit octeon_irq_percpu_enable(void)
+{
+	irq_cpu_online();
+}
+
+static void __cpuinit octeon_irq_init_ciu_percpu(void)
+{
+	int coreid = cvmx_get_core_num();
 	/*
-	 * We need to do a read after the last update to make sure all
-	 * of them are done.
+	 * Disable All CIU Interrupts. The ones we need will be
+	 * enabled later.  Read the SUM register so we know the write
+	 * completed.
 	 */
-	cvmx_read_csr(CVMX_CIU_INTX_EN1(cvmx_get_core_num() * 2 + 1));
-	raw_spin_unlock_irqrestore(&octeon_irq_ciu1_lock, flags);
-
-	return 0;
+	cvmx_write_csr(CVMX_CIU_INTX_EN0((coreid * 2)), 0);
+	cvmx_write_csr(CVMX_CIU_INTX_EN0((coreid * 2 + 1)), 0);
+	cvmx_write_csr(CVMX_CIU_INTX_EN1((coreid * 2)), 0);
+	cvmx_write_csr(CVMX_CIU_INTX_EN1((coreid * 2 + 1)), 0);
+	cvmx_read_csr(CVMX_CIU_INTX_SUM0((coreid * 2)));
 }
 
-/*
- * Set affinity for the irq for chips that have the EN*_W1{S,C}
- * registers.
- */
-static int octeon_irq_ciu1_set_affinity_v2(unsigned int irq,
-					   const struct cpumask *dest)
+static void __cpuinit octeon_irq_setup_secondary_ciu(void)
 {
-	int cpu;
-	int index;
-	struct irq_desc *desc = irq_to_desc(irq);
-	int enable_one = (desc->status & IRQ_DISABLED) == 0;
-	u64 mask = 1ull << (irq - OCTEON_IRQ_WDOG0);
-	for_each_online_cpu(cpu) {
-		index = octeon_coreid_for_cpu(cpu) * 2 + 1;
-		if (cpumask_test_cpu(cpu, dest) && enable_one) {
-			enable_one = 0;
-			cvmx_write_csr(CVMX_CIU_INTX_EN1_W1S(index), mask);
-		} else {
-			cvmx_write_csr(CVMX_CIU_INTX_EN1_W1C(index), mask);
-		}
-	}
-	return 0;
-}
-#endif
 
-/*
- * Newer octeon chips have support for lockless CIU operation.
- */
-static struct irq_chip octeon_irq_chip_ciu1_v2 = {
-	.name = "CIU1",
-	.enable = octeon_irq_ciu1_enable_v2,
-	.disable = octeon_irq_ciu1_disable_all_v2,
-	.eoi = octeon_irq_ciu1_enable_v2,
-#ifdef CONFIG_SMP
-	.set_affinity = octeon_irq_ciu1_set_affinity_v2,
-#endif
-};
+	__get_cpu_var(octeon_irq_ciu0_en_mirror) = 0;
+	__get_cpu_var(octeon_irq_ciu1_en_mirror) = 0;
 
-static struct irq_chip octeon_irq_chip_ciu1 = {
-	.name = "CIU1",
-	.enable = octeon_irq_ciu1_enable,
-	.disable = octeon_irq_ciu1_disable,
-	.eoi = octeon_irq_ciu1_eoi,
-#ifdef CONFIG_SMP
-	.set_affinity = octeon_irq_ciu1_set_affinity,
-#endif
-};
+	octeon_irq_init_ciu_percpu();
+	octeon_irq_percpu_enable();
 
-static struct irq_chip octeon_irq_chip_ciu1_wd_v2 = {
-	.name = "CIU1-W",
-	.enable = octeon_irq_ciu1_wd_enable_v2,
-	.disable = octeon_irq_ciu1_disable_all_v2,
-	.eoi = octeon_irq_ciu1_wd_enable_v2,
-};
+	/* Enable the CIU lines */
+	set_c0_status(STATUSF_IP3 | STATUSF_IP2);
+	clear_c0_status(STATUSF_IP4);
+}
 
-static struct irq_chip octeon_irq_chip_ciu1_wd = {
-	.name = "CIU1-W",
-	.enable = octeon_irq_ciu1_wd_enable,
-	.disable = octeon_irq_ciu1_disable,
-	.eoi = octeon_irq_ciu1_eoi,
-};
+static void __init octeon_irq_init_ciu(void)
+{
+	unsigned int i;
+	struct irq_chip *chip;
+	struct irq_chip *chip_edge;
+	struct irq_chip *chip_mbox;
+	struct irq_chip *chip_wd;
+
+	octeon_irq_init_ciu_percpu();
+	octeon_irq_setup_secondary = octeon_irq_setup_secondary_ciu;
 
-static void (*octeon_ciu0_ack)(unsigned int);
-static void (*octeon_ciu1_ack)(unsigned int);
+	if (OCTEON_IS_MODEL(OCTEON_CN58XX_PASS2_X) ||
+	    OCTEON_IS_MODEL(OCTEON_CN56XX_PASS2_X) ||
+	    OCTEON_IS_MODEL(OCTEON_CN52XX_PASS2_X) ||
+	    OCTEON_IS_MODEL(OCTEON_CN6XXX)) {
+		octeon_irq_ip2 = octeon_irq_ip2_v2;
+		octeon_irq_ip3 = octeon_irq_ip3_v2;
+		chip = &octeon_irq_chip_ciu_v2;
+		chip_edge = &octeon_irq_chip_ciu_edge_v2;
+		chip_mbox = &octeon_irq_chip_ciu_mbox_v2;
+		chip_wd = &octeon_irq_chip_ciu_wd_v2;
+	} else {
+		octeon_irq_ip2 = octeon_irq_ip2_v1;
+		octeon_irq_ip3 = octeon_irq_ip3_v1;
+		chip = &octeon_irq_chip_ciu;
+		chip_edge = &octeon_irq_chip_ciu_edge;
+		chip_mbox = &octeon_irq_chip_ciu_mbox;
+		chip_wd = &octeon_irq_chip_ciu_wd;
+	}
+	octeon_irq_ip4 = octeon_irq_ip4_mask;
+
+	/* Mips internal */
+	octeon_irq_init_core();
+
+	/* CIU_0 */
+	for (i = 0; i < 16; i++)
+		octeon_irq_set_ciu_mapping(i + OCTEON_IRQ_WORKQ0, 0, i + 0, chip, handle_level_irq);
+	for (i = 0; i < 16; i++)
+		octeon_irq_set_ciu_mapping(i + OCTEON_IRQ_GPIO0, 0, i + 16, chip, handle_level_irq);
+
+	octeon_irq_set_ciu_mapping(OCTEON_IRQ_MBOX0, 0, 32, chip_mbox, handle_percpu_irq);
+	octeon_irq_set_ciu_mapping(OCTEON_IRQ_MBOX1, 0, 33, chip_mbox, handle_percpu_irq);
+
+	octeon_irq_set_ciu_mapping(OCTEON_IRQ_UART0, 0, 34, chip, handle_level_irq);
+	octeon_irq_set_ciu_mapping(OCTEON_IRQ_UART1, 0, 35, chip, handle_level_irq);
+
+	for (i = 0; i < 4; i++)
+		octeon_irq_set_ciu_mapping(i + OCTEON_IRQ_PCI_INT0, 0, i + 36, chip, handle_level_irq);
+	for (i = 0; i < 4; i++)
+		octeon_irq_set_ciu_mapping(i + OCTEON_IRQ_PCI_MSI0, 0, i + 40, chip, handle_level_irq);
+
+	octeon_irq_set_ciu_mapping(OCTEON_IRQ_TWSI, 0, 45, chip, handle_level_irq);
+	octeon_irq_set_ciu_mapping(OCTEON_IRQ_RML, 0, 46, chip, handle_level_irq);
+	octeon_irq_set_ciu_mapping(OCTEON_IRQ_TRACE0, 0, 47, chip, handle_level_irq);
+
+	for (i = 0; i < 2; i++)
+		octeon_irq_set_ciu_mapping(i + OCTEON_IRQ_GMX_DRP0, 0, i + 48, chip_edge, handle_edge_irq);
+
+	octeon_irq_set_ciu_mapping(OCTEON_IRQ_IPD_DRP, 0, 50, chip_edge, handle_edge_irq);
+	octeon_irq_set_ciu_mapping(OCTEON_IRQ_KEY_ZERO, 0, 51, chip_edge, handle_edge_irq);
+
+	for (i = 0; i < 4; i++)
+		octeon_irq_set_ciu_mapping(i + OCTEON_IRQ_TIMER0, 0, i + 52, chip_edge, handle_edge_irq);
+
+	octeon_irq_set_ciu_mapping(OCTEON_IRQ_USB0, 0, 56, chip, handle_level_irq);
+	octeon_irq_set_ciu_mapping(OCTEON_IRQ_PCM, 0, 57, chip, handle_level_irq);
+	octeon_irq_set_ciu_mapping(OCTEON_IRQ_MPI, 0, 58, chip, handle_level_irq);
+	octeon_irq_set_ciu_mapping(OCTEON_IRQ_TWSI2, 0, 59, chip, handle_level_irq);
+	octeon_irq_set_ciu_mapping(OCTEON_IRQ_POWIQ, 0, 60, chip, handle_level_irq);
+	octeon_irq_set_ciu_mapping(OCTEON_IRQ_IPDPPTHR, 0, 61, chip, handle_level_irq);
+	octeon_irq_set_ciu_mapping(OCTEON_IRQ_MII0, 0, 62, chip, handle_level_irq);
+	octeon_irq_set_ciu_mapping(OCTEON_IRQ_BOOTDMA, 0, 63, chip, handle_level_irq);
+
+	/* CIU_1 */
+	for (i = 0; i < 16; i++)
+		octeon_irq_set_ciu_mapping(i + OCTEON_IRQ_WDOG0, 1, i + 0, chip_wd, handle_level_irq);
+
+	octeon_irq_set_ciu_mapping(OCTEON_IRQ_UART2, 1, 16, chip, handle_level_irq);
+	octeon_irq_set_ciu_mapping(OCTEON_IRQ_USB1, 1, 17, chip, handle_level_irq);
+	octeon_irq_set_ciu_mapping(OCTEON_IRQ_MII1, 1, 18, chip, handle_level_irq);
+	octeon_irq_set_ciu_mapping(OCTEON_IRQ_NAND, 1, 19, chip, handle_level_irq);
+	octeon_irq_set_ciu_mapping(OCTEON_IRQ_MIO, 1, 20, chip, handle_level_irq);
+	octeon_irq_set_ciu_mapping(OCTEON_IRQ_IOB, 1, 21, chip, handle_level_irq);
+	octeon_irq_set_ciu_mapping(OCTEON_IRQ_FPA, 1, 22, chip, handle_level_irq);
+	octeon_irq_set_ciu_mapping(OCTEON_IRQ_POW, 1, 23, chip, handle_level_irq);
+	octeon_irq_set_ciu_mapping(OCTEON_IRQ_L2C, 1, 24, chip, handle_level_irq);
+	octeon_irq_set_ciu_mapping(OCTEON_IRQ_IPD, 1, 25, chip, handle_level_irq);
+	octeon_irq_set_ciu_mapping(OCTEON_IRQ_PIP, 1, 26, chip, handle_level_irq);
+	octeon_irq_set_ciu_mapping(OCTEON_IRQ_PKO, 1, 27, chip, handle_level_irq);
+	octeon_irq_set_ciu_mapping(OCTEON_IRQ_ZIP, 1, 28, chip, handle_level_irq);
+	octeon_irq_set_ciu_mapping(OCTEON_IRQ_TIM, 1, 29, chip, handle_level_irq);
+	octeon_irq_set_ciu_mapping(OCTEON_IRQ_RAD, 1, 30, chip, handle_level_irq);
+	octeon_irq_set_ciu_mapping(OCTEON_IRQ_KEY, 1, 31, chip, handle_level_irq);
+	octeon_irq_set_ciu_mapping(OCTEON_IRQ_DFA, 1, 32, chip, handle_level_irq);
+	octeon_irq_set_ciu_mapping(OCTEON_IRQ_USBCTL, 1, 33, chip, handle_level_irq);
+	octeon_irq_set_ciu_mapping(OCTEON_IRQ_SLI, 1, 34, chip, handle_level_irq);
+	octeon_irq_set_ciu_mapping(OCTEON_IRQ_DPI, 1, 35, chip, handle_level_irq);
+
+	octeon_irq_set_ciu_mapping(OCTEON_IRQ_AGX0, 1, 36, chip, handle_level_irq);
+
+	octeon_irq_set_ciu_mapping(OCTEON_IRQ_AGL, 1, 46, chip, handle_level_irq);
+
+	octeon_irq_set_ciu_mapping(OCTEON_IRQ_PTP, 1, 47, chip_edge, handle_edge_irq);
+
+	octeon_irq_set_ciu_mapping(OCTEON_IRQ_PEM0, 1, 48, chip, handle_level_irq);
+	octeon_irq_set_ciu_mapping(OCTEON_IRQ_PEM1, 1, 49, chip, handle_level_irq);
+	octeon_irq_set_ciu_mapping(OCTEON_IRQ_SRIO0, 1, 50, chip, handle_level_irq);
+	octeon_irq_set_ciu_mapping(OCTEON_IRQ_SRIO1, 1, 51, chip, handle_level_irq);
+	octeon_irq_set_ciu_mapping(OCTEON_IRQ_LMC0, 1, 52, chip, handle_level_irq);
+	octeon_irq_set_ciu_mapping(OCTEON_IRQ_DFM, 1, 56, chip, handle_level_irq);
+	octeon_irq_set_ciu_mapping(OCTEON_IRQ_RST, 1, 63, chip, handle_level_irq);
+
+	/* Enable the CIU lines */
+	set_c0_status(STATUSF_IP3 | STATUSF_IP2);
+	clear_c0_status(STATUSF_IP4);
+}
 
 void __init arch_init_irq(void)
 {
-	unsigned int irq;
-	struct irq_chip *chip0;
-	struct irq_chip *chip0_mbox;
-	struct irq_chip *chip1;
-	struct irq_chip *chip1_wd;
-
 #ifdef CONFIG_SMP
 	/* Set the default affinity to the boot cpu. */
 	cpumask_clear(irq_default_affinity);
 	cpumask_set_cpu(smp_processor_id(), irq_default_affinity);
 #endif
-
-	if (NR_IRQS < OCTEON_IRQ_LAST)
-		pr_err("octeon_irq_init: NR_IRQS is set too low\n");
-
-	if (OCTEON_IS_MODEL(OCTEON_CN58XX_PASS2_X) ||
-	    OCTEON_IS_MODEL(OCTEON_CN56XX_PASS2_X) ||
-	    OCTEON_IS_MODEL(OCTEON_CN52XX_PASS2_X)) {
-		octeon_ciu0_ack = octeon_irq_ciu0_ack_v2;
-		octeon_ciu1_ack = octeon_irq_ciu1_ack_v2;
-		chip0 = &octeon_irq_chip_ciu0_v2;
-		chip0_mbox = &octeon_irq_chip_ciu0_mbox_v2;
-		chip1 = &octeon_irq_chip_ciu1_v2;
-		chip1_wd = &octeon_irq_chip_ciu1_wd_v2;
-	} else {
-		octeon_ciu0_ack = octeon_irq_ciu0_ack;
-		octeon_ciu1_ack = octeon_irq_ciu1_ack;
-		chip0 = &octeon_irq_chip_ciu0;
-		chip0_mbox = &octeon_irq_chip_ciu0_mbox;
-		chip1 = &octeon_irq_chip_ciu1;
-		chip1_wd = &octeon_irq_chip_ciu1_wd;
-	}
-
-	/* 0 - 15 reserved for i8259 master and slave controller. */
-
-	/* 17 - 23 Mips internal */
-	for (irq = OCTEON_IRQ_SW0; irq <= OCTEON_IRQ_TIMER; irq++) {
-		set_irq_chip_and_handler(irq, &octeon_irq_chip_core,
-					 handle_percpu_irq);
-	}
-
-	/* 24 - 87 CIU_INT_SUM0 */
-	for (irq = OCTEON_IRQ_WORKQ0; irq <= OCTEON_IRQ_BOOTDMA; irq++) {
-		switch (irq) {
-		case OCTEON_IRQ_MBOX0:
-		case OCTEON_IRQ_MBOX1:
-			set_irq_chip_and_handler(irq, chip0_mbox, handle_percpu_irq);
-			break;
-		default:
-			set_irq_chip_and_handler(irq, chip0, handle_fasteoi_irq);
-			break;
-		}
-	}
-
-	/* 88 - 151 CIU_INT_SUM1 */
-	for (irq = OCTEON_IRQ_WDOG0; irq <= OCTEON_IRQ_WDOG15; irq++)
-		set_irq_chip_and_handler(irq, chip1_wd, handle_fasteoi_irq);
-
-	for (irq = OCTEON_IRQ_UART2; irq <= OCTEON_IRQ_RESERVED151; irq++)
-		set_irq_chip_and_handler(irq, chip1, handle_fasteoi_irq);
-
-	set_c0_status(0x300 << 2);
+	octeon_irq_init_ciu();
 }
 
 asmlinkage void plat_irq_dispatch(void)
 {
-	const unsigned long core_id = cvmx_get_core_num();
-	const uint64_t ciu_sum0_address = CVMX_CIU_INTX_SUM0(core_id * 2);
-	const uint64_t ciu_en0_address = CVMX_CIU_INTX_EN0(core_id * 2);
-	const uint64_t ciu_sum1_address = CVMX_CIU_INT_SUM1;
-	const uint64_t ciu_en1_address = CVMX_CIU_INTX_EN1(core_id * 2 + 1);
 	unsigned long cop0_cause;
 	unsigned long cop0_status;
-	uint64_t ciu_en;
-	uint64_t ciu_sum;
-	unsigned int irq;
 
 	while (1) {
 		cop0_cause = read_c0_cause();
@@ -757,33 +1021,16 @@ asmlinkage void plat_irq_dispatch(void)
 		cop0_cause &= cop0_status;
 		cop0_cause &= ST0_IM;
 
-		if (unlikely(cop0_cause & STATUSF_IP2)) {
-			ciu_sum = cvmx_read_csr(ciu_sum0_address);
-			ciu_en = cvmx_read_csr(ciu_en0_address);
-			ciu_sum &= ciu_en;
-			if (likely(ciu_sum)) {
-				irq = fls64(ciu_sum) + OCTEON_IRQ_WORKQ0 - 1;
-				octeon_ciu0_ack(irq);
-				do_IRQ(irq);
-			} else {
-				spurious_interrupt();
-			}
-		} else if (unlikely(cop0_cause & STATUSF_IP3)) {
-			ciu_sum = cvmx_read_csr(ciu_sum1_address);
-			ciu_en = cvmx_read_csr(ciu_en1_address);
-			ciu_sum &= ciu_en;
-			if (likely(ciu_sum)) {
-				irq = fls64(ciu_sum) + OCTEON_IRQ_WDOG0 - 1;
-				octeon_ciu1_ack(irq);
-				do_IRQ(irq);
-			} else {
-				spurious_interrupt();
-			}
-		} else if (likely(cop0_cause)) {
+		if (unlikely(cop0_cause & STATUSF_IP2))
+			octeon_irq_ip2();
+		else if (unlikely(cop0_cause & STATUSF_IP3))
+			octeon_irq_ip3();
+		else if (unlikely(cop0_cause & STATUSF_IP4))
+			octeon_irq_ip4();
+		else if (likely(cop0_cause))
 			do_IRQ(fls(cop0_cause) - 9 + MIPS_CPU_IRQ_BASE);
-		} else {
+		else
 			break;
-		}
 	}
 }
 
@@ -791,83 +1038,7 @@ asmlinkage void plat_irq_dispatch(void)
 
 void fixup_irqs(void)
 {
-	int irq;
-	struct irq_desc *desc;
-	cpumask_t new_affinity;
-	unsigned long flags;
-	int do_set_affinity;
-	int cpu;
-
-	cpu = smp_processor_id();
-
-	for (irq = OCTEON_IRQ_SW0; irq <= OCTEON_IRQ_TIMER; irq++)
-		octeon_irq_core_disable_local(irq);
-
-	for (irq = OCTEON_IRQ_WORKQ0; irq < OCTEON_IRQ_LAST; irq++) {
-		desc = irq_to_desc(irq);
-		switch (irq) {
-		case OCTEON_IRQ_MBOX0:
-		case OCTEON_IRQ_MBOX1:
-			/* The eoi function will disable them on this CPU. */
-			desc->chip->eoi(irq);
-			break;
-		case OCTEON_IRQ_WDOG0:
-		case OCTEON_IRQ_WDOG1:
-		case OCTEON_IRQ_WDOG2:
-		case OCTEON_IRQ_WDOG3:
-		case OCTEON_IRQ_WDOG4:
-		case OCTEON_IRQ_WDOG5:
-		case OCTEON_IRQ_WDOG6:
-		case OCTEON_IRQ_WDOG7:
-		case OCTEON_IRQ_WDOG8:
-		case OCTEON_IRQ_WDOG9:
-		case OCTEON_IRQ_WDOG10:
-		case OCTEON_IRQ_WDOG11:
-		case OCTEON_IRQ_WDOG12:
-		case OCTEON_IRQ_WDOG13:
-		case OCTEON_IRQ_WDOG14:
-		case OCTEON_IRQ_WDOG15:
-			/*
-			 * These have special per CPU semantics and
-			 * are handled in the watchdog driver.
-			 */
-			break;
-		default:
-			raw_spin_lock_irqsave(&desc->lock, flags);
-			/*
-			 * If this irq has an action, it is in use and
-			 * must be migrated if it has affinity to this
-			 * cpu.
-			 */
-			if (desc->action && cpumask_test_cpu(cpu, desc->affinity)) {
-				if (cpumask_weight(desc->affinity) > 1) {
-					/*
-					 * It has multi CPU affinity,
-					 * just remove this CPU from
-					 * the affinity set.
-					 */
-					cpumask_copy(&new_affinity, desc->affinity);
-					cpumask_clear_cpu(cpu, &new_affinity);
-				} else {
-					/*
-					 * Otherwise, put it on lowest
-					 * numbered online CPU.
-					 */
-					cpumask_clear(&new_affinity);
-					cpumask_set_cpu(cpumask_first(cpu_online_mask), &new_affinity);
-				}
-				do_set_affinity = 1;
-			} else {
-				do_set_affinity = 0;
-			}
-			raw_spin_unlock_irqrestore(&desc->lock, flags);
-
-			if (do_set_affinity)
-				irq_set_affinity(irq, &new_affinity);
-
-			break;
-		}
-	}
+	irq_cpu_offline();
 }
 
 #endif /* CONFIG_HOTPLUG_CPU */
diff --git a/arch/mips/cavium-octeon/octeon-platform.c b/arch/mips/cavium-octeon/octeon-platform.c
index cecaf62aef32..cd61d7281d91 100644
--- a/arch/mips/cavium-octeon/octeon-platform.c
+++ b/arch/mips/cavium-octeon/octeon-platform.c
@@ -75,7 +75,7 @@ static int __init octeon_cf_device_init(void)
 		 * zero.
 		 */
 
-		/* Asume that CS1 immediately follows. */
+		/* Assume that CS1 immediately follows. */
 		mio_boot_reg_cfg.u64 =
 			cvmx_read_csr(CVMX_MIO_BOOT_REG_CFGX(i + 1));
 		region_base = mio_boot_reg_cfg.s.base << 16;
diff --git a/arch/mips/cavium-octeon/setup.c b/arch/mips/cavium-octeon/setup.c
index b0c3686c96dd..0707fae3f0ee 100644
--- a/arch/mips/cavium-octeon/setup.c
+++ b/arch/mips/cavium-octeon/setup.c
@@ -420,7 +420,6 @@ void octeon_user_io_init(void)
 void __init prom_init(void)
 {
 	struct cvmx_sysinfo *sysinfo;
-	const int coreid = cvmx_get_core_num();
 	int i;
 	int argc;
 #ifdef CONFIG_CAVIUM_RESERVE32
@@ -537,17 +536,6 @@ void __init prom_init(void)
 
 	octeon_uart = octeon_get_boot_uart();
 
-	/*
-	 * Disable All CIU Interrupts. The ones we need will be
-	 * enabled later.  Read the SUM register so we know the write
-	 * completed.
-	 */
-	cvmx_write_csr(CVMX_CIU_INTX_EN0((coreid * 2)), 0);
-	cvmx_write_csr(CVMX_CIU_INTX_EN0((coreid * 2 + 1)), 0);
-	cvmx_write_csr(CVMX_CIU_INTX_EN1((coreid * 2)), 0);
-	cvmx_write_csr(CVMX_CIU_INTX_EN1((coreid * 2 + 1)), 0);
-	cvmx_read_csr(CVMX_CIU_INTX_SUM0((coreid * 2)));
-
 #ifdef CONFIG_SMP
 	octeon_write_lcd("LinuxSMP");
 #else
@@ -674,7 +662,7 @@ void __init plat_mem_setup(void)
 	 * some memory vectors. When SPARSEMEM is in use, it doesn't
 	 * verify that the size is big enough for the final
 	 * vectors. Making the smallest chuck 4MB seems to be enough
-	 * to consistantly work.
+	 * to consistently work.
 	 */
 	mem_alloc_size = 4 << 20;
 	if (mem_alloc_size > MAX_MEMORY)
diff --git a/arch/mips/cavium-octeon/smp.c b/arch/mips/cavium-octeon/smp.c
index 391cefe556b3..ba78b21cc8d0 100644
--- a/arch/mips/cavium-octeon/smp.c
+++ b/arch/mips/cavium-octeon/smp.c
@@ -171,41 +171,19 @@ static void octeon_boot_secondary(int cpu, struct task_struct *idle)
  * After we've done initial boot, this function is called to allow the
  * board code to clean up state, if needed
  */
-static void octeon_init_secondary(void)
+static void __cpuinit octeon_init_secondary(void)
 {
-	const int coreid = cvmx_get_core_num();
-	union cvmx_ciu_intx_sum0 interrupt_enable;
 	unsigned int sr;
 
-#ifdef CONFIG_HOTPLUG_CPU
-	struct linux_app_boot_info *labi;
-
-	labi = (struct linux_app_boot_info *)PHYS_TO_XKSEG_CACHED(LABI_ADDR_IN_BOOTLOADER);
-
-	if (labi->labi_signature != LABI_SIGNATURE)
-		panic("The bootloader version on this board is incorrect.");
-#endif
-
 	sr = set_c0_status(ST0_BEV);
 	write_c0_ebase((u32)ebase);
 	write_c0_status(sr);
 
 	octeon_check_cpu_bist();
 	octeon_init_cvmcount();
-	/*
-	pr_info("SMP: CPU%d (CoreId %lu) started\n", cpu, coreid);
-	*/
-	/* Enable Mailbox interrupts to this core. These are the only
-	   interrupts allowed on line 3 */
-	cvmx_write_csr(CVMX_CIU_MBOX_CLRX(coreid), 0xffffffff);
-	interrupt_enable.u64 = 0;
-	interrupt_enable.s.mbox = 0x3;
-	cvmx_write_csr(CVMX_CIU_INTX_EN0((coreid * 2)), interrupt_enable.u64);
-	cvmx_write_csr(CVMX_CIU_INTX_EN0((coreid * 2 + 1)), 0);
-	cvmx_write_csr(CVMX_CIU_INTX_EN1((coreid * 2)), 0);
-	cvmx_write_csr(CVMX_CIU_INTX_EN1((coreid * 2 + 1)), 0);
-	/* Enable core interrupt processing for 2,3 and 7 */
-	set_c0_status(0x8c01);
+
+	octeon_irq_setup_secondary();
+	raw_local_irq_enable();
 }
 
 /**
@@ -214,6 +192,15 @@ static void octeon_init_secondary(void)
  */
 void octeon_prepare_cpus(unsigned int max_cpus)
 {
+#ifdef CONFIG_HOTPLUG_CPU
+	struct linux_app_boot_info *labi;
+
+	labi = (struct linux_app_boot_info *)PHYS_TO_XKSEG_CACHED(LABI_ADDR_IN_BOOTLOADER);
+
+	if (labi->labi_signature != LABI_SIGNATURE)
+		panic("The bootloader version on this board is incorrect.");
+#endif
+
 	cvmx_write_csr(CVMX_CIU_MBOX_CLRX(cvmx_get_core_num()), 0xffffffff);
 	if (request_irq(OCTEON_IRQ_MBOX0, mailbox_interrupt, IRQF_DISABLED,
 			"mailbox0", mailbox_interrupt)) {
diff --git a/arch/mips/dec/ioasic-irq.c b/arch/mips/dec/ioasic-irq.c
index cb41954fc321..824e08c73798 100644
--- a/arch/mips/dec/ioasic-irq.c
+++ b/arch/mips/dec/ioasic-irq.c
@@ -17,80 +17,48 @@
 #include <asm/dec/ioasic_addrs.h>
 #include <asm/dec/ioasic_ints.h>
 
-
 static int ioasic_irq_base;
 
-
-static inline void unmask_ioasic_irq(unsigned int irq)
+static void unmask_ioasic_irq(struct irq_data *d)
 {
 	u32 simr;
 
 	simr = ioasic_read(IO_REG_SIMR);
-	simr |= (1 << (irq - ioasic_irq_base));
+	simr |= (1 << (d->irq - ioasic_irq_base));
 	ioasic_write(IO_REG_SIMR, simr);
 }
 
-static inline void mask_ioasic_irq(unsigned int irq)
+static void mask_ioasic_irq(struct irq_data *d)
 {
 	u32 simr;
 
 	simr = ioasic_read(IO_REG_SIMR);
-	simr &= ~(1 << (irq - ioasic_irq_base));
+	simr &= ~(1 << (d->irq - ioasic_irq_base));
 	ioasic_write(IO_REG_SIMR, simr);
 }
 
-static inline void clear_ioasic_irq(unsigned int irq)
+static void ack_ioasic_irq(struct irq_data *d)
 {
-	u32 sir;
-
-	sir = ~(1 << (irq - ioasic_irq_base));
-	ioasic_write(IO_REG_SIR, sir);
-}
-
-static inline void ack_ioasic_irq(unsigned int irq)
-{
-	mask_ioasic_irq(irq);
+	mask_ioasic_irq(d);
 	fast_iob();
 }
 
-static inline void end_ioasic_irq(unsigned int irq)
-{
-	if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS)))
-		unmask_ioasic_irq(irq);
-}
-
 static struct irq_chip ioasic_irq_type = {
 	.name = "IO-ASIC",
-	.ack = ack_ioasic_irq,
-	.mask = mask_ioasic_irq,
-	.mask_ack = ack_ioasic_irq,
-	.unmask = unmask_ioasic_irq,
+	.irq_ack = ack_ioasic_irq,
+	.irq_mask = mask_ioasic_irq,
+	.irq_mask_ack = ack_ioasic_irq,
+	.irq_unmask = unmask_ioasic_irq,
 };
 
-
-#define unmask_ioasic_dma_irq unmask_ioasic_irq
-
-#define mask_ioasic_dma_irq mask_ioasic_irq
-
-#define ack_ioasic_dma_irq ack_ioasic_irq
-
-static inline void end_ioasic_dma_irq(unsigned int irq)
-{
-	clear_ioasic_irq(irq);
-	fast_iob();
-	end_ioasic_irq(irq);
-}
-
 static struct irq_chip ioasic_dma_irq_type = {
 	.name = "IO-ASIC-DMA",
-	.ack = ack_ioasic_dma_irq,
-	.mask = mask_ioasic_dma_irq,
-	.mask_ack = ack_ioasic_dma_irq,
-	.unmask = unmask_ioasic_dma_irq,
-	.end = end_ioasic_dma_irq,
+	.irq_ack = ack_ioasic_irq,
+	.irq_mask = mask_ioasic_irq,
+	.irq_mask_ack = ack_ioasic_irq,
+	.irq_unmask = unmask_ioasic_irq,
 };
 
-
 void __init init_ioasic_irqs(int base)
 {
 	int i;
@@ -100,10 +68,10 @@ void __init init_ioasic_irqs(int base)
 	fast_iob();
 
 	for (i = base; i < base + IO_INR_DMA; i++)
-		set_irq_chip_and_handler(i, &ioasic_irq_type,
+		irq_set_chip_and_handler(i, &ioasic_irq_type,
 					 handle_level_irq);
 	for (; i < base + IO_IRQ_LINES; i++)
-		set_irq_chip(i, &ioasic_dma_irq_type);
+		irq_set_chip(i, &ioasic_dma_irq_type);
 
 	ioasic_irq_base = base;
 }
diff --git a/arch/mips/dec/kn02-irq.c b/arch/mips/dec/kn02-irq.c
index ed90a8deabcc..37199f742c45 100644
--- a/arch/mips/dec/kn02-irq.c
+++ b/arch/mips/dec/kn02-irq.c
@@ -27,43 +27,40 @@
  */
 u32 cached_kn02_csr;
 
-
 static int kn02_irq_base;
 
-
-static inline void unmask_kn02_irq(unsigned int irq)
+static void unmask_kn02_irq(struct irq_data *d)
 {
 	volatile u32 *csr = (volatile u32 *)CKSEG1ADDR(KN02_SLOT_BASE +
 						       KN02_CSR);
 
-	cached_kn02_csr |= (1 << (irq - kn02_irq_base + 16));
+	cached_kn02_csr |= (1 << (d->irq - kn02_irq_base + 16));
 	*csr = cached_kn02_csr;
 }
 
-static inline void mask_kn02_irq(unsigned int irq)
+static void mask_kn02_irq(struct irq_data *d)
 {
 	volatile u32 *csr = (volatile u32 *)CKSEG1ADDR(KN02_SLOT_BASE +
 						       KN02_CSR);
 
-	cached_kn02_csr &= ~(1 << (irq - kn02_irq_base + 16));
+	cached_kn02_csr &= ~(1 << (d->irq - kn02_irq_base + 16));
 	*csr = cached_kn02_csr;
 }
 
-static void ack_kn02_irq(unsigned int irq)
+static void ack_kn02_irq(struct irq_data *d)
 {
-	mask_kn02_irq(irq);
+	mask_kn02_irq(d);
 	iob();
 }
 
 static struct irq_chip kn02_irq_type = {
 	.name = "KN02-CSR",
-	.ack = ack_kn02_irq,
-	.mask = mask_kn02_irq,
-	.mask_ack = ack_kn02_irq,
-	.unmask = unmask_kn02_irq,
+	.irq_ack = ack_kn02_irq,
+	.irq_mask = mask_kn02_irq,
+	.irq_mask_ack = ack_kn02_irq,
+	.irq_unmask = unmask_kn02_irq,
 };
 
-
 void __init init_kn02_irqs(int base)
 {
 	volatile u32 *csr = (volatile u32 *)CKSEG1ADDR(KN02_SLOT_BASE +
@@ -76,7 +73,7 @@ void __init init_kn02_irqs(int base)
 	iob();
 
 	for (i = base; i < base + KN02_IRQ_LINES; i++)
-		set_irq_chip_and_handler(i, &kn02_irq_type, handle_level_irq);
+		irq_set_chip_and_handler(i, &kn02_irq_type, handle_level_irq);
 
 	kn02_irq_base = base;
 }
diff --git a/arch/mips/emma/markeins/irq.c b/arch/mips/emma/markeins/irq.c
index 3a96799eb65f..3dbd7a5a6ad3 100644
--- a/arch/mips/emma/markeins/irq.c
+++ b/arch/mips/emma/markeins/irq.c
@@ -34,13 +34,10 @@
 
 #include <asm/emma/emma2rh.h>
 
-static void emma2rh_irq_enable(unsigned int irq)
+static void emma2rh_irq_enable(struct irq_data *d)
 {
-	u32 reg_value;
-	u32 reg_bitmask;
-	u32 reg_index;
-
-	irq -= EMMA2RH_IRQ_BASE;
+	unsigned int irq = d->irq - EMMA2RH_IRQ_BASE;
+	u32 reg_value, reg_bitmask, reg_index;
 
 	reg_index = EMMA2RH_BHIF_INT_EN_0 +
 		    (EMMA2RH_BHIF_INT_EN_1 - EMMA2RH_BHIF_INT_EN_0) * (irq / 32);
@@ -49,13 +46,10 @@ static void emma2rh_irq_enable(unsigned int irq)
 	emma2rh_out32(reg_index, reg_value | reg_bitmask);
 }
 
-static void emma2rh_irq_disable(unsigned int irq)
+static void emma2rh_irq_disable(struct irq_data *d)
 {
-	u32 reg_value;
-	u32 reg_bitmask;
-	u32 reg_index;
-
-	irq -= EMMA2RH_IRQ_BASE;
+	unsigned int irq = d->irq - EMMA2RH_IRQ_BASE;
+	u32 reg_value, reg_bitmask, reg_index;
 
 	reg_index = EMMA2RH_BHIF_INT_EN_0 +
 		    (EMMA2RH_BHIF_INT_EN_1 - EMMA2RH_BHIF_INT_EN_0) * (irq / 32);
@@ -66,10 +60,8 @@ static void emma2rh_irq_disable(unsigned int irq)
 
 struct irq_chip emma2rh_irq_controller = {
 	.name = "emma2rh_irq",
-	.ack = emma2rh_irq_disable,
-	.mask = emma2rh_irq_disable,
-	.mask_ack = emma2rh_irq_disable,
-	.unmask = emma2rh_irq_enable,
+	.irq_mask = emma2rh_irq_disable,
+	.irq_unmask = emma2rh_irq_enable,
 };
 
 void emma2rh_irq_init(void)
@@ -77,28 +69,26 @@ void emma2rh_irq_init(void)
 	u32 i;
 
 	for (i = 0; i < NUM_EMMA2RH_IRQ; i++)
-		set_irq_chip_and_handler_name(EMMA2RH_IRQ_BASE + i,
+		irq_set_chip_and_handler_name(EMMA2RH_IRQ_BASE + i,
 					      &emma2rh_irq_controller,
 					      handle_level_irq, "level");
 }
 
-static void emma2rh_sw_irq_enable(unsigned int irq)
+static void emma2rh_sw_irq_enable(struct irq_data *d)
 {
+	unsigned int irq = d->irq - EMMA2RH_SW_IRQ_BASE;
 	u32 reg;
 
-	irq -= EMMA2RH_SW_IRQ_BASE;
-
 	reg = emma2rh_in32(EMMA2RH_BHIF_SW_INT_EN);
 	reg |= 1 << irq;
 	emma2rh_out32(EMMA2RH_BHIF_SW_INT_EN, reg);
 }
 
-static void emma2rh_sw_irq_disable(unsigned int irq)
+static void emma2rh_sw_irq_disable(struct irq_data *d)
 {
+	unsigned int irq = d->irq - EMMA2RH_SW_IRQ_BASE;
 	u32 reg;
 
-	irq -= EMMA2RH_SW_IRQ_BASE;
-
 	reg = emma2rh_in32(EMMA2RH_BHIF_SW_INT_EN);
 	reg &= ~(1 << irq);
 	emma2rh_out32(EMMA2RH_BHIF_SW_INT_EN, reg);
@@ -106,10 +96,8 @@ static void emma2rh_sw_irq_disable(unsigned int irq)
 
 struct irq_chip emma2rh_sw_irq_controller = {
 	.name = "emma2rh_sw_irq",
-	.ack = emma2rh_sw_irq_disable,
-	.mask = emma2rh_sw_irq_disable,
-	.mask_ack = emma2rh_sw_irq_disable,
-	.unmask = emma2rh_sw_irq_enable,
+	.irq_mask = emma2rh_sw_irq_disable,
+	.irq_unmask = emma2rh_sw_irq_enable,
 };
 
 void emma2rh_sw_irq_init(void)
@@ -117,44 +105,43 @@ void emma2rh_sw_irq_init(void)
 	u32 i;
 
 	for (i = 0; i < NUM_EMMA2RH_IRQ_SW; i++)
-		set_irq_chip_and_handler_name(EMMA2RH_SW_IRQ_BASE + i,
+		irq_set_chip_and_handler_name(EMMA2RH_SW_IRQ_BASE + i,
 					      &emma2rh_sw_irq_controller,
 					      handle_level_irq, "level");
 }
 
-static void emma2rh_gpio_irq_enable(unsigned int irq)
+static void emma2rh_gpio_irq_enable(struct irq_data *d)
 {
+	unsigned int irq = d->irq - EMMA2RH_GPIO_IRQ_BASE;
 	u32 reg;
 
-	irq -= EMMA2RH_GPIO_IRQ_BASE;
-
 	reg = emma2rh_in32(EMMA2RH_GPIO_INT_MASK);
 	reg |= 1 << irq;
 	emma2rh_out32(EMMA2RH_GPIO_INT_MASK, reg);
 }
 
-static void emma2rh_gpio_irq_disable(unsigned int irq)
+static void emma2rh_gpio_irq_disable(struct irq_data *d)
 {
+	unsigned int irq = d->irq - EMMA2RH_GPIO_IRQ_BASE;
 	u32 reg;
 
-	irq -= EMMA2RH_GPIO_IRQ_BASE;
-
 	reg = emma2rh_in32(EMMA2RH_GPIO_INT_MASK);
 	reg &= ~(1 << irq);
 	emma2rh_out32(EMMA2RH_GPIO_INT_MASK, reg);
 }
 
-static void emma2rh_gpio_irq_ack(unsigned int irq)
+static void emma2rh_gpio_irq_ack(struct irq_data *d)
 {
-	irq -= EMMA2RH_GPIO_IRQ_BASE;
+	unsigned int irq = d->irq - EMMA2RH_GPIO_IRQ_BASE;
+
 	emma2rh_out32(EMMA2RH_GPIO_INT_ST, ~(1 << irq));
 }
 
-static void emma2rh_gpio_irq_mask_ack(unsigned int irq)
+static void emma2rh_gpio_irq_mask_ack(struct irq_data *d)
 {
+	unsigned int irq = d->irq - EMMA2RH_GPIO_IRQ_BASE;
 	u32 reg;
 
-	irq -= EMMA2RH_GPIO_IRQ_BASE;
 	emma2rh_out32(EMMA2RH_GPIO_INT_ST, ~(1 << irq));
 
 	reg = emma2rh_in32(EMMA2RH_GPIO_INT_MASK);
@@ -164,10 +151,10 @@ static void emma2rh_gpio_irq_mask_ack(unsigned int irq)
 
 struct irq_chip emma2rh_gpio_irq_controller = {
 	.name = "emma2rh_gpio_irq",
-	.ack = emma2rh_gpio_irq_ack,
-	.mask = emma2rh_gpio_irq_disable,
-	.mask_ack = emma2rh_gpio_irq_mask_ack,
-	.unmask = emma2rh_gpio_irq_enable,
+	.irq_ack = emma2rh_gpio_irq_ack,
+	.irq_mask = emma2rh_gpio_irq_disable,
+	.irq_mask_ack = emma2rh_gpio_irq_mask_ack,
+	.irq_unmask = emma2rh_gpio_irq_enable,
 };
 
 void emma2rh_gpio_irq_init(void)
@@ -175,7 +162,7 @@ void emma2rh_gpio_irq_init(void)
 	u32 i;
 
 	for (i = 0; i < NUM_EMMA2RH_IRQ_GPIO; i++)
-		set_irq_chip_and_handler_name(EMMA2RH_GPIO_IRQ_BASE + i,
+		irq_set_chip_and_handler_name(EMMA2RH_GPIO_IRQ_BASE + i,
 					      &emma2rh_gpio_irq_controller,
 					      handle_edge_irq, "edge");
 }
diff --git a/arch/mips/fw/arc/promlib.c b/arch/mips/fw/arc/promlib.c
index c508c00dbb64..b7f9dd3c93c6 100644
--- a/arch/mips/fw/arc/promlib.c
+++ b/arch/mips/fw/arc/promlib.c
@@ -4,7 +4,7 @@
  * for more details.
  *
  * Copyright (C) 1996 David S. Miller (dm@sgi.com)
- * Compability with board caches, Ulf Carlsson
+ * Compatibility with board caches, Ulf Carlsson
  */
 #include <linux/kernel.h>
 #include <asm/sgialib.h>
diff --git a/arch/mips/include/asm/dec/prom.h b/arch/mips/include/asm/dec/prom.h
index b9c8203688d5..c0ead6313845 100644
--- a/arch/mips/include/asm/dec/prom.h
+++ b/arch/mips/include/asm/dec/prom.h
@@ -108,7 +108,7 @@ extern int (*__pmax_close)(int);
 
 /*
  * On MIPS64 we have to call PROM functions via a helper
- * dispatcher to accomodate ABI incompatibilities.
+ * dispatcher to accommodate ABI incompatibilities.
  */
 #define __DEC_PROM_O32(fun, arg) fun arg __asm__(#fun); \
 				 __asm__(#fun " = call_o32")
diff --git a/arch/mips/include/asm/floppy.h b/arch/mips/include/asm/floppy.h
index 992d232adc83..c5c7c0e6064c 100644
--- a/arch/mips/include/asm/floppy.h
+++ b/arch/mips/include/asm/floppy.h
@@ -24,7 +24,7 @@ static inline void fd_cacheflush(char * addr, long size)
  * And on Mips's the CMOS info fails also ...
  *
  * FIXME: This information should come from the ARC configuration tree
- *        or whereever a particular machine has stored this ...
+ *        or wherever a particular machine has stored this ...
  */
 #define FLOPPY0_TYPE 		fd_drive_type(0)
 #define FLOPPY1_TYPE		fd_drive_type(1)
diff --git a/arch/mips/include/asm/hw_irq.h b/arch/mips/include/asm/hw_irq.h
index aca05a43a97b..77adda297ad9 100644
--- a/arch/mips/include/asm/hw_irq.h
+++ b/arch/mips/include/asm/hw_irq.h
@@ -13,7 +13,7 @@
 extern atomic_t irq_err_count;
 
 /*
- * interrupt-retrigger: NOP for now. This may not be apropriate for all
+ * interrupt-retrigger: NOP for now. This may not be appropriate for all
  * machines, we'll see ...
  */
 
diff --git a/arch/mips/include/asm/io.h b/arch/mips/include/asm/io.h
index 5b017f23e243..b04e4de5dd2e 100644
--- a/arch/mips/include/asm/io.h
+++ b/arch/mips/include/asm/io.h
@@ -242,7 +242,7 @@ static inline void __iomem * __ioremap_mode(phys_t offset, unsigned long size,
  * This version of ioremap ensures that the memory is marked uncachable
  * on the CPU as well as honouring existing caching rules from things like
  * the PCI bus. Note that there are other caches and buffers on many
- * busses. In paticular driver authors should read up on PCI writes
+ * busses. In particular driver authors should read up on PCI writes
  *
  * It's useful if some control registers are in such an area and
  * write combining or read caching is not desirable:
diff --git a/arch/mips/include/asm/irq.h b/arch/mips/include/asm/irq.h
index b003ed52ed17..0ec01294b063 100644
--- a/arch/mips/include/asm/irq.h
+++ b/arch/mips/include/asm/irq.h
@@ -55,9 +55,9 @@ static inline void smtc_im_ack_irq(unsigned int irq)
 #ifdef CONFIG_MIPS_MT_SMTC_IRQAFF
 #include <linux/cpumask.h>
 
-extern int plat_set_irq_affinity(unsigned int irq,
-				  const struct cpumask *affinity);
-extern void smtc_forward_irq(unsigned int irq);
+extern int plat_set_irq_affinity(struct irq_data *d,
+				 const struct cpumask *affinity, bool force);
+extern void smtc_forward_irq(struct irq_data *d);
 
 /*
  * IRQ affinity hook invoked at the beginning of interrupt dispatch
@@ -70,51 +70,53 @@ extern void smtc_forward_irq(unsigned int irq);
  * cpumask implementations, this version is optimistically assuming
  * that cpumask.h macro overhead is reasonable during interrupt dispatch.
  */
-#define IRQ_AFFINITY_HOOK(irq)						\
-do {									\
-    if (!cpumask_test_cpu(smp_processor_id(), irq_desc[irq].affinity)) {\
-	smtc_forward_irq(irq);						\
-	irq_exit();							\
-	return;								\
-    }									\
-} while (0)
+static inline int handle_on_other_cpu(unsigned int irq)
+{
+	struct irq_data *d = irq_get_irq_data(irq);
+
+	if (cpumask_test_cpu(smp_processor_id(), d->affinity))
+		return 0;
+	smtc_forward_irq(d);
+	return 1;
+}
 
 #else /* Not doing SMTC affinity */
 
-#define IRQ_AFFINITY_HOOK(irq) do { } while (0)
+static inline int handle_on_other_cpu(unsigned int irq) { return 0; }
 
 #endif /* CONFIG_MIPS_MT_SMTC_IRQAFF */
 
 #ifdef CONFIG_MIPS_MT_SMTC_IM_BACKSTOP
 
+static inline void smtc_im_backstop(unsigned int irq)
+{
+	if (irq_hwmask[irq] & 0x0000ff00)
+		write_c0_tccontext(read_c0_tccontext() &
+				   ~(irq_hwmask[irq] & 0x0000ff00));
+}
+
 /*
  * Clear interrupt mask handling "backstop" if irq_hwmask
  * entry so indicates. This implies that the ack() or end()
  * functions will take over re-enabling the low-level mask.
  * Otherwise it will be done on return from exception.
  */
-#define __DO_IRQ_SMTC_HOOK(irq)						\
-do {									\
-	IRQ_AFFINITY_HOOK(irq);						\
-	if (irq_hwmask[irq] & 0x0000ff00)				\
-		write_c0_tccontext(read_c0_tccontext() &		\
-				   ~(irq_hwmask[irq] & 0x0000ff00));	\
-} while (0)
-
-#define __NO_AFFINITY_IRQ_SMTC_HOOK(irq)				\
-do {									\
-	if (irq_hwmask[irq] & 0x0000ff00)                               \
-		write_c0_tccontext(read_c0_tccontext() &		\
-				   ~(irq_hwmask[irq] & 0x0000ff00));	\
-} while (0)
+static inline int smtc_handle_on_other_cpu(unsigned int irq)
+{
+	int ret = handle_on_other_cpu(irq);
+
+	if (!ret)
+		smtc_im_backstop(irq);
+	return ret;
+}
 
 #else
 
-#define __DO_IRQ_SMTC_HOOK(irq)						\
-do {									\
-	IRQ_AFFINITY_HOOK(irq);						\
-} while (0)
-#define __NO_AFFINITY_IRQ_SMTC_HOOK(irq) do { } while (0)
+static inline void smtc_im_backstop(unsigned int irq) { }
+static inline int smtc_handle_on_other_cpu(unsigned int irq)
+{
+	return handle_on_other_cpu(irq);
+}
 
 #endif
 
diff --git a/arch/mips/include/asm/irqflags.h b/arch/mips/include/asm/irqflags.h
index 9ef3b0d17896..309cbcd6909c 100644
--- a/arch/mips/include/asm/irqflags.h
+++ b/arch/mips/include/asm/irqflags.h
@@ -174,7 +174,7 @@ __asm__(
 	"mtc0	\\flags, $2, 1						\n"
 #elif defined(CONFIG_CPU_MIPSR2) && defined(CONFIG_IRQ_CPU)
 	/*
-	 * Slow, but doesn't suffer from a relativly unlikely race
+	 * Slow, but doesn't suffer from a relatively unlikely race
 	 * condition we're having since days 1.
 	 */
 	"	beqz	\\flags, 1f					\n"
diff --git a/arch/mips/include/asm/mach-bcm63xx/bcm963xx_tag.h b/arch/mips/include/asm/mach-bcm63xx/bcm963xx_tag.h
index 5325084d5c48..32978d32561a 100644
--- a/arch/mips/include/asm/mach-bcm63xx/bcm963xx_tag.h
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm963xx_tag.h
@@ -4,7 +4,7 @@
 #define TAGVER_LEN		4	/* Length of Tag Version */
 #define TAGLAYOUT_LEN		4	/* Length of FlashLayoutVer */
 #define SIG1_LEN		20	/* Company Signature 1 Length */
-#define SIG2_LEN		14	/* Company Signature 2 Lenght */
+#define SIG2_LEN		14	/* Company Signature 2 Length */
 #define BOARDID_LEN		16	/* Length of BoardId */
 #define ENDIANFLAG_LEN		2	/* Endian Flag Length */
 #define CHIPID_LEN		6	/* Chip Id Length */
diff --git a/arch/mips/include/asm/mach-cavium-octeon/irq.h b/arch/mips/include/asm/mach-cavium-octeon/irq.h
index 6ddab8aef644..5b05f186e395 100644
--- a/arch/mips/include/asm/mach-cavium-octeon/irq.h
+++ b/arch/mips/include/asm/mach-cavium-octeon/irq.h
@@ -11,172 +11,91 @@
 #define NR_IRQS OCTEON_IRQ_LAST
 #define MIPS_CPU_IRQ_BASE OCTEON_IRQ_SW0
 
-/* 0 - 7 represent the i8259 master */
-#define OCTEON_IRQ_I8259M0	0
-#define OCTEON_IRQ_I8259M1	1
-#define OCTEON_IRQ_I8259M2	2
-#define OCTEON_IRQ_I8259M3	3
-#define OCTEON_IRQ_I8259M4	4
-#define OCTEON_IRQ_I8259M5	5
-#define OCTEON_IRQ_I8259M6	6
-#define OCTEON_IRQ_I8259M7	7
-/* 8 - 15 represent the i8259 slave */
-#define OCTEON_IRQ_I8259S0	8
-#define OCTEON_IRQ_I8259S1	9
-#define OCTEON_IRQ_I8259S2	10
-#define OCTEON_IRQ_I8259S3	11
-#define OCTEON_IRQ_I8259S4	12
-#define OCTEON_IRQ_I8259S5	13
-#define OCTEON_IRQ_I8259S6	14
-#define OCTEON_IRQ_I8259S7	15
-/* 16 - 23 represent the 8 MIPS standard interrupt sources */
-#define OCTEON_IRQ_SW0		16
-#define OCTEON_IRQ_SW1		17
-#define OCTEON_IRQ_CIU0		18
-#define OCTEON_IRQ_CIU1		19
-#define OCTEON_IRQ_CIU4		20
-#define OCTEON_IRQ_5		21
-#define OCTEON_IRQ_PERF		22
-#define OCTEON_IRQ_TIMER	23
-/* 24 - 87 represent the sources in CIU_INTX_EN0 */
-#define OCTEON_IRQ_WORKQ0	24
-#define OCTEON_IRQ_WORKQ1	25
-#define OCTEON_IRQ_WORKQ2	26
-#define OCTEON_IRQ_WORKQ3	27
-#define OCTEON_IRQ_WORKQ4	28
-#define OCTEON_IRQ_WORKQ5	29
-#define OCTEON_IRQ_WORKQ6	30
-#define OCTEON_IRQ_WORKQ7	31
-#define OCTEON_IRQ_WORKQ8	32
-#define OCTEON_IRQ_WORKQ9	33
-#define OCTEON_IRQ_WORKQ10	34
-#define OCTEON_IRQ_WORKQ11	35
-#define OCTEON_IRQ_WORKQ12	36
-#define OCTEON_IRQ_WORKQ13	37
-#define OCTEON_IRQ_WORKQ14	38
-#define OCTEON_IRQ_WORKQ15	39
-#define OCTEON_IRQ_GPIO0	40
-#define OCTEON_IRQ_GPIO1	41
-#define OCTEON_IRQ_GPIO2	42
-#define OCTEON_IRQ_GPIO3	43
-#define OCTEON_IRQ_GPIO4	44
-#define OCTEON_IRQ_GPIO5	45
-#define OCTEON_IRQ_GPIO6	46
-#define OCTEON_IRQ_GPIO7	47
-#define OCTEON_IRQ_GPIO8	48
-#define OCTEON_IRQ_GPIO9	49
-#define OCTEON_IRQ_GPIO10	50
-#define OCTEON_IRQ_GPIO11	51
-#define OCTEON_IRQ_GPIO12	52
-#define OCTEON_IRQ_GPIO13	53
-#define OCTEON_IRQ_GPIO14	54
-#define OCTEON_IRQ_GPIO15	55
-#define OCTEON_IRQ_MBOX0	56
-#define OCTEON_IRQ_MBOX1	57
-#define OCTEON_IRQ_UART0	58
-#define OCTEON_IRQ_UART1	59
-#define OCTEON_IRQ_PCI_INT0	60
-#define OCTEON_IRQ_PCI_INT1	61
-#define OCTEON_IRQ_PCI_INT2	62
-#define OCTEON_IRQ_PCI_INT3	63
-#define OCTEON_IRQ_PCI_MSI0	64
-#define OCTEON_IRQ_PCI_MSI1	65
-#define OCTEON_IRQ_PCI_MSI2	66
-#define OCTEON_IRQ_PCI_MSI3	67
-#define OCTEON_IRQ_RESERVED68	68	/* Summary of CIU_INT_SUM1 */
-#define OCTEON_IRQ_TWSI		69
-#define OCTEON_IRQ_RML		70
-#define OCTEON_IRQ_TRACE	71
-#define OCTEON_IRQ_GMX_DRP0	72
-#define OCTEON_IRQ_GMX_DRP1	73
-#define OCTEON_IRQ_IPD_DRP	74
-#define OCTEON_IRQ_KEY_ZERO	75
-#define OCTEON_IRQ_TIMER0	76
-#define OCTEON_IRQ_TIMER1	77
-#define OCTEON_IRQ_TIMER2	78
-#define OCTEON_IRQ_TIMER3	79
-#define OCTEON_IRQ_USB0		80
-#define OCTEON_IRQ_PCM		81
-#define OCTEON_IRQ_MPI		82
-#define OCTEON_IRQ_TWSI2	83
-#define OCTEON_IRQ_POWIQ	84
-#define OCTEON_IRQ_IPDPPTHR	85
-#define OCTEON_IRQ_MII0		86
-#define OCTEON_IRQ_BOOTDMA	87
-/* 88 - 151 represent the sources in CIU_INTX_EN1 */
-#define OCTEON_IRQ_WDOG0	88
-#define OCTEON_IRQ_WDOG1	89
-#define OCTEON_IRQ_WDOG2	90
-#define OCTEON_IRQ_WDOG3	91
-#define OCTEON_IRQ_WDOG4	92
-#define OCTEON_IRQ_WDOG5	93
-#define OCTEON_IRQ_WDOG6	94
-#define OCTEON_IRQ_WDOG7	95
-#define OCTEON_IRQ_WDOG8	96
-#define OCTEON_IRQ_WDOG9	97
-#define OCTEON_IRQ_WDOG10	98
-#define OCTEON_IRQ_WDOG11	99
-#define OCTEON_IRQ_WDOG12	100
-#define OCTEON_IRQ_WDOG13	101
-#define OCTEON_IRQ_WDOG14	102
-#define OCTEON_IRQ_WDOG15	103
-#define OCTEON_IRQ_UART2	104
-#define OCTEON_IRQ_USB1		105
-#define OCTEON_IRQ_MII1		106
-#define OCTEON_IRQ_RESERVED107	107
-#define OCTEON_IRQ_RESERVED108	108
-#define OCTEON_IRQ_RESERVED109	109
-#define OCTEON_IRQ_RESERVED110	110
-#define OCTEON_IRQ_RESERVED111	111
-#define OCTEON_IRQ_RESERVED112	112
-#define OCTEON_IRQ_RESERVED113	113
-#define OCTEON_IRQ_RESERVED114	114
-#define OCTEON_IRQ_RESERVED115	115
-#define OCTEON_IRQ_RESERVED116	116
-#define OCTEON_IRQ_RESERVED117	117
-#define OCTEON_IRQ_RESERVED118	118
-#define OCTEON_IRQ_RESERVED119	119
-#define OCTEON_IRQ_RESERVED120	120
-#define OCTEON_IRQ_RESERVED121	121
-#define OCTEON_IRQ_RESERVED122	122
-#define OCTEON_IRQ_RESERVED123	123
-#define OCTEON_IRQ_RESERVED124	124
-#define OCTEON_IRQ_RESERVED125	125
-#define OCTEON_IRQ_RESERVED126	126
-#define OCTEON_IRQ_RESERVED127	127
-#define OCTEON_IRQ_RESERVED128	128
-#define OCTEON_IRQ_RESERVED129	129
-#define OCTEON_IRQ_RESERVED130	130
-#define OCTEON_IRQ_RESERVED131	131
-#define OCTEON_IRQ_RESERVED132	132
-#define OCTEON_IRQ_RESERVED133	133
-#define OCTEON_IRQ_RESERVED134	134
-#define OCTEON_IRQ_RESERVED135	135
-#define OCTEON_IRQ_RESERVED136	136
-#define OCTEON_IRQ_RESERVED137	137
-#define OCTEON_IRQ_RESERVED138	138
-#define OCTEON_IRQ_RESERVED139	139
-#define OCTEON_IRQ_RESERVED140	140
-#define OCTEON_IRQ_RESERVED141	141
-#define OCTEON_IRQ_RESERVED142	142
-#define OCTEON_IRQ_RESERVED143	143
-#define OCTEON_IRQ_RESERVED144	144
-#define OCTEON_IRQ_RESERVED145	145
-#define OCTEON_IRQ_RESERVED146	146
-#define OCTEON_IRQ_RESERVED147	147
-#define OCTEON_IRQ_RESERVED148	148
-#define OCTEON_IRQ_RESERVED149	149
-#define OCTEON_IRQ_RESERVED150	150
-#define OCTEON_IRQ_RESERVED151	151
+enum octeon_irq {
+/* 1 - 8 represent the 8 MIPS standard interrupt sources */
+	OCTEON_IRQ_SW0 = 1,
+	OCTEON_IRQ_SW1,
+/* CIU0, CUI2, CIU4 are 3, 4, 5 */
+	OCTEON_IRQ_5 = 6,
+	OCTEON_IRQ_PERF,
+	OCTEON_IRQ_TIMER,
+/* sources in CIU_INTX_EN0 */
+	OCTEON_IRQ_WORKQ0,
+	OCTEON_IRQ_GPIO0 = OCTEON_IRQ_WORKQ0 + 16,
+	OCTEON_IRQ_WDOG0 = OCTEON_IRQ_GPIO0 + 16,
+	OCTEON_IRQ_WDOG15 = OCTEON_IRQ_WDOG0 + 15,
+	OCTEON_IRQ_MBOX0 = OCTEON_IRQ_WDOG0 + 16,
+	OCTEON_IRQ_MBOX1,
+	OCTEON_IRQ_UART0,
+	OCTEON_IRQ_UART1,
+	OCTEON_IRQ_UART2,
+	OCTEON_IRQ_PCI_INT0,
+	OCTEON_IRQ_PCI_INT1,
+	OCTEON_IRQ_PCI_INT2,
+	OCTEON_IRQ_PCI_INT3,
+	OCTEON_IRQ_PCI_MSI0,
+	OCTEON_IRQ_PCI_MSI1,
+	OCTEON_IRQ_PCI_MSI2,
+	OCTEON_IRQ_PCI_MSI3,
+
+	OCTEON_IRQ_TWSI,
+	OCTEON_IRQ_TWSI2,
+	OCTEON_IRQ_RML,
+	OCTEON_IRQ_TRACE0,
+	OCTEON_IRQ_GMX_DRP0 = OCTEON_IRQ_TRACE0 + 4,
+	OCTEON_IRQ_IPD_DRP = OCTEON_IRQ_GMX_DRP0 + 5,
+	OCTEON_IRQ_KEY_ZERO,
+	OCTEON_IRQ_TIMER0,
+	OCTEON_IRQ_TIMER1,
+	OCTEON_IRQ_TIMER2,
+	OCTEON_IRQ_TIMER3,
+	OCTEON_IRQ_USB0,
+	OCTEON_IRQ_USB1,
+	OCTEON_IRQ_PCM,
+	OCTEON_IRQ_MPI,
+	OCTEON_IRQ_POWIQ,
+	OCTEON_IRQ_IPDPPTHR,
+	OCTEON_IRQ_MII0,
+	OCTEON_IRQ_MII1,
+	OCTEON_IRQ_BOOTDMA,
+
+	OCTEON_IRQ_NAND,
+	OCTEON_IRQ_MIO,		/* Summary of MIO_BOOT_ERR */
+	OCTEON_IRQ_IOB,		/* Summary of IOB_INT_SUM */
+	OCTEON_IRQ_FPA,		/* Summary of FPA_INT_SUM */
+	OCTEON_IRQ_POW,		/* Summary of POW_ECC_ERR */
+	OCTEON_IRQ_L2C,		/* Summary of L2C_INT_STAT */
+	OCTEON_IRQ_IPD,		/* Summary of IPD_INT_SUM */
+	OCTEON_IRQ_PIP,		/* Summary of PIP_INT_REG */
+	OCTEON_IRQ_PKO,		/* Summary of PKO_REG_ERROR */
+	OCTEON_IRQ_ZIP,		/* Summary of ZIP_ERROR */
+	OCTEON_IRQ_TIM,		/* Summary of TIM_REG_ERROR */
+	OCTEON_IRQ_RAD,		/* Summary of RAD_REG_ERROR */
+	OCTEON_IRQ_KEY,		/* Summary of KEY_INT_SUM */
+	OCTEON_IRQ_DFA,		/* Summary of DFA */
+	OCTEON_IRQ_USBCTL,	/* Summary of USBN0_INT_SUM */
+	OCTEON_IRQ_SLI,		/* Summary of SLI_INT_SUM */
+	OCTEON_IRQ_DPI,		/* Summary of DPI_INT_SUM */
+	OCTEON_IRQ_AGX0,	/* Summary of GMX0*+PCS0_INT*_REG */
+	OCTEON_IRQ_AGL  = OCTEON_IRQ_AGX0 + 5,
+	OCTEON_IRQ_PTP,
+	OCTEON_IRQ_PEM0,
+	OCTEON_IRQ_PEM1,
+	OCTEON_IRQ_SRIO0,
+	OCTEON_IRQ_SRIO1,
+	OCTEON_IRQ_LMC0,
+	OCTEON_IRQ_DFM = OCTEON_IRQ_LMC0 + 4,		/* Summary of DFM */
+	OCTEON_IRQ_RST,
+};
 
 #ifdef CONFIG_PCI_MSI
-/* 152 - 215 represent the MSI interrupts 0-63 */
-#define OCTEON_IRQ_MSI_BIT0	152
-#define OCTEON_IRQ_MSI_LAST	(OCTEON_IRQ_MSI_BIT0 + 255)
+/* 152 - 407 represent the MSI interrupts 0-255 */
+#define OCTEON_IRQ_MSI_BIT0	(OCTEON_IRQ_RST + 1)
 
-#define OCTEON_IRQ_LAST		(OCTEON_IRQ_MSI_LAST + 1)
+#define OCTEON_IRQ_MSI_LAST      (OCTEON_IRQ_MSI_BIT0 + 255)
+#define OCTEON_IRQ_LAST          (OCTEON_IRQ_MSI_LAST + 1)
 #else
-#define OCTEON_IRQ_LAST         152
+#define OCTEON_IRQ_LAST         (OCTEON_IRQ_RST + 1)
 #endif
 
 #endif
diff --git a/arch/mips/include/asm/mach-ip32/mc146818rtc.h b/arch/mips/include/asm/mach-ip32/mc146818rtc.h
index c28ba8d84076..6b6bab43d5c1 100644
--- a/arch/mips/include/asm/mach-ip32/mc146818rtc.h
+++ b/arch/mips/include/asm/mach-ip32/mc146818rtc.h
@@ -26,7 +26,7 @@ static inline void CMOS_WRITE(unsigned char data, unsigned long addr)
 }
 
 /*
- * FIXME: Do it right. For now just assume that noone lives in 20th century
+ * FIXME: Do it right. For now just assume that no one lives in 20th century
  * and no O2 user in 22th century ;-)
  */
 #define mc146818_decode_year(year) ((year) + 2000)
diff --git a/arch/mips/include/asm/mach-loongson/cs5536/cs5536.h b/arch/mips/include/asm/mach-loongson/cs5536/cs5536.h
index 021f77ca59ec..2a8e2bb5d539 100644
--- a/arch/mips/include/asm/mach-loongson/cs5536/cs5536.h
+++ b/arch/mips/include/asm/mach-loongson/cs5536/cs5536.h
@@ -1,5 +1,5 @@
 /*
- * The header file of cs5536 sourth bridge.
+ * The header file of cs5536 south bridge.
  *
  * Copyright (C) 2007 Lemote, Inc.
  * Author : jlliu <liujl@lemote.com>
diff --git a/arch/mips/include/asm/mach-pb1x00/pb1000.h b/arch/mips/include/asm/mach-pb1x00/pb1000.h
index 6d1ff9060e44..65059255dc1e 100644
--- a/arch/mips/include/asm/mach-pb1x00/pb1000.h
+++ b/arch/mips/include/asm/mach-pb1x00/pb1000.h
@@ -1,5 +1,5 @@
 /*
- * Alchemy Semi Pb1000 Referrence Board
+ * Alchemy Semi Pb1000 Reference Board
  *
  * Copyright 2001, 2008 MontaVista Software Inc.
  * Author: MontaVista Software, Inc. <source@mvista.com>
diff --git a/arch/mips/include/asm/mach-pb1x00/pb1200.h b/arch/mips/include/asm/mach-pb1x00/pb1200.h
index 962eb55dc880..fce4332ebb7f 100644
--- a/arch/mips/include/asm/mach-pb1x00/pb1200.h
+++ b/arch/mips/include/asm/mach-pb1x00/pb1200.h
@@ -1,5 +1,5 @@
 /*
- * AMD Alchemy Pb1200 Referrence Board
+ * AMD Alchemy Pb1200 Reference Board
  * Board Registers defines.
  *
  * ########################################################################
diff --git a/arch/mips/include/asm/mach-pb1x00/pb1550.h b/arch/mips/include/asm/mach-pb1x00/pb1550.h
index fc4d766641ce..f835c88e9593 100644
--- a/arch/mips/include/asm/mach-pb1x00/pb1550.h
+++ b/arch/mips/include/asm/mach-pb1x00/pb1550.h
@@ -1,5 +1,5 @@
 /*
- * AMD Alchemy Semi PB1550 Referrence Board
+ * AMD Alchemy Semi PB1550 Reference Board
  * Board Registers defines.
  *
  * Copyright 2004 Embedded Edge LLC.
diff --git a/arch/mips/include/asm/mach-powertv/dma-coherence.h b/arch/mips/include/asm/mach-powertv/dma-coherence.h
index f76029c2406e..a8e72cf12142 100644
--- a/arch/mips/include/asm/mach-powertv/dma-coherence.h
+++ b/arch/mips/include/asm/mach-powertv/dma-coherence.h
@@ -48,7 +48,7 @@ static inline unsigned long virt_to_phys_from_pte(void *addr)
 				/* check for a valid page */
 				if (pte_present(pte)) {
 					/* get the physical address the page is
-					 * refering to */
+					 * referring to */
 					phys_addr = (unsigned long)
 						page_to_phys(pte_page(pte));
 					/* add the offset within the page */
diff --git a/arch/mips/include/asm/mipsregs.h b/arch/mips/include/asm/mipsregs.h
index 4d9870975382..6a6f8a8f542d 100644
--- a/arch/mips/include/asm/mipsregs.h
+++ b/arch/mips/include/asm/mipsregs.h
@@ -922,7 +922,7 @@ do {									\
 #define write_c0_config7(val)	__write_32bit_c0_register($16, 7, val)
 
 /*
- * The WatchLo register.  There may be upto 8 of them.
+ * The WatchLo register.  There may be up to 8 of them.
  */
 #define read_c0_watchlo0()	__read_ulong_c0_register($18, 0)
 #define read_c0_watchlo1()	__read_ulong_c0_register($18, 1)
@@ -942,7 +942,7 @@ do {									\
 #define write_c0_watchlo7(val)	__write_ulong_c0_register($18, 7, val)
 
 /*
- * The WatchHi register.  There may be upto 8 of them.
+ * The WatchHi register.  There may be up to 8 of them.
  */
 #define read_c0_watchhi0()	__read_32bit_c0_register($19, 0)
 #define read_c0_watchhi1()	__read_32bit_c0_register($19, 1)
diff --git a/arch/mips/include/asm/octeon/cvmx-bootinfo.h b/arch/mips/include/asm/octeon/cvmx-bootinfo.h
index f3c23a43f845..4e4c3a8282d6 100644
--- a/arch/mips/include/asm/octeon/cvmx-bootinfo.h
+++ b/arch/mips/include/asm/octeon/cvmx-bootinfo.h
@@ -200,7 +200,7 @@ enum cvmx_chip_types_enum {
 	CVMX_CHIP_TYPE_MAX,
 };
 
-/* Compatability alias for NAC38 name change, planned to be removed
+/* Compatibility alias for NAC38 name change, planned to be removed
  * from SDK 1.7 */
 #define CVMX_BOARD_TYPE_NAO38	CVMX_BOARD_TYPE_NAC38
 
diff --git a/arch/mips/include/asm/octeon/cvmx-bootmem.h b/arch/mips/include/asm/octeon/cvmx-bootmem.h
index 8e708bdb43f7..877845b84b14 100644
--- a/arch/mips/include/asm/octeon/cvmx-bootmem.h
+++ b/arch/mips/include/asm/octeon/cvmx-bootmem.h
@@ -67,7 +67,7 @@ struct cvmx_bootmem_block_header {
 
 /*
  * Structure for named memory blocks.  Number of descriptors available
- * can be changed without affecting compatiblity, but name length
+ * can be changed without affecting compatibility, but name length
  * changes require a bump in the bootmem descriptor version Note: This
  * structure must be naturally 64 bit aligned, as a single memory
  * image will be used by both 32 and 64 bit programs.
diff --git a/arch/mips/include/asm/octeon/cvmx-l2c.h b/arch/mips/include/asm/octeon/cvmx-l2c.h
index 0b32c5b118e2..2c8ff9e33ec3 100644
--- a/arch/mips/include/asm/octeon/cvmx-l2c.h
+++ b/arch/mips/include/asm/octeon/cvmx-l2c.h
@@ -157,7 +157,7 @@ enum cvmx_l2c_tad_event {
 
 /**
  * Configure one of the four L2 Cache performance counters to capture event
- * occurences.
+ * occurrences.
  *
  * @counter:        The counter to configure. Range 0..3.
  * @event:          The type of L2 Cache event occurrence to count.
diff --git a/arch/mips/include/asm/octeon/cvmx.h b/arch/mips/include/asm/octeon/cvmx.h
index 9d9381e2e3d8..7e1286706d46 100644
--- a/arch/mips/include/asm/octeon/cvmx.h
+++ b/arch/mips/include/asm/octeon/cvmx.h
@@ -151,7 +151,7 @@ enum cvmx_mips_space {
 #endif
 
 /**
- * Convert a memory pointer (void*) into a hardware compatable
+ * Convert a memory pointer (void*) into a hardware compatible
  * memory address (uint64_t). Octeon hardware widgets don't
  * understand logical addresses.
  *
diff --git a/arch/mips/include/asm/octeon/octeon.h b/arch/mips/include/asm/octeon/octeon.h
index 6b34afd0d4e7..f72f768cd3a4 100644
--- a/arch/mips/include/asm/octeon/octeon.h
+++ b/arch/mips/include/asm/octeon/octeon.h
@@ -257,4 +257,6 @@ extern struct cvmx_bootinfo *octeon_bootinfo;
 
 extern uint64_t octeon_bootloader_entry_addr;
 
+extern void (*octeon_irq_setup_secondary)(void);
+
 #endif /* __ASM_OCTEON_OCTEON_H */
diff --git a/arch/mips/include/asm/paccess.h b/arch/mips/include/asm/paccess.h
index c2394f8b0fe1..9ce5a1e7e14c 100644
--- a/arch/mips/include/asm/paccess.h
+++ b/arch/mips/include/asm/paccess.h
@@ -7,7 +7,7 @@
  * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
  *
  * Protected memory access.  Used for everything that might take revenge
- * by sending a DBE error like accessing possibly non-existant memory or
+ * by sending a DBE error like accessing possibly non-existent memory or
  * devices.
  */
 #ifndef _ASM_PACCESS_H
diff --git a/arch/mips/include/asm/pci/bridge.h b/arch/mips/include/asm/pci/bridge.h
index f1f508e4f971..be44fb0266da 100644
--- a/arch/mips/include/asm/pci/bridge.h
+++ b/arch/mips/include/asm/pci/bridge.h
@@ -262,7 +262,7 @@ typedef volatile struct bridge_s {
 } bridge_t;
 
 /*
- * Field formats for Error Command Word and Auxillary Error Command Word
+ * Field formats for Error Command Word and Auxiliary Error Command Word
  * of bridge.
  */
 typedef struct bridge_err_cmdword_s {
diff --git a/arch/mips/include/asm/pmc-sierra/msp71xx/cpu-feature-overrides.h b/arch/mips/include/asm/pmc-sierra/msp71xx/cpu-feature-overrides.h
new file mode 100644
index 000000000000..a80801b094bd
--- /dev/null
+++ b/arch/mips/include/asm/pmc-sierra/msp71xx/cpu-feature-overrides.h
@@ -0,0 +1,21 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2003, 04, 07 Ralf Baechle (ralf@linux-mips.org)
+ */
+#ifndef __ASM_MACH_MSP71XX_CPU_FEATURE_OVERRIDES_H
+#define __ASM_MACH_MSP71XX_CPU_FEATURE_OVERRIDES_H
+
+#define cpu_has_mips16		1
+#define cpu_has_dsp		1
+#define cpu_has_mipsmt		1
+#define cpu_has_fpu		0
+
+#define cpu_has_mips32r1	0
+#define cpu_has_mips32r2	1
+#define cpu_has_mips64r1	0
+#define cpu_has_mips64r2	0
+
+#endif /* __ASM_MACH_MSP71XX_CPU_FEATURE_OVERRIDES_H */
diff --git a/arch/mips/include/asm/pmc-sierra/msp71xx/msp_gpio_macros.h b/arch/mips/include/asm/pmc-sierra/msp71xx/msp_gpio_macros.h
new file mode 100644
index 000000000000..156f320c69e7
--- /dev/null
+++ b/arch/mips/include/asm/pmc-sierra/msp71xx/msp_gpio_macros.h
@@ -0,0 +1,343 @@
+/*
+ *
+ * Macros for external SMP-safe access to the PMC MSP71xx reference
+ * board GPIO pins
+ *
+ * Copyright 2010 PMC-Sierra, Inc.
+ *
+ *  This program is free software; you can redistribute  it and/or modify it
+ *  under  the terms of  the GNU General  Public License as published by the
+ *  Free Software Foundation;  either version 2 of the  License, or (at your
+ *  option) any later version.
+ *
+ *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
+ *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
+ *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
+ *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
+ *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
+ *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
+ *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *  You should have received a copy of the  GNU General Public License along
+ *  with this program; if not, write  to the Free Software Foundation, Inc.,
+ *  675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef __MSP_GPIO_MACROS_H__
+#define __MSP_GPIO_MACROS_H__
+
+#include <msp_regops.h>
+#include <msp_regs.h>
+
+#ifdef CONFIG_PMC_MSP7120_GW
+#define MSP_NUM_GPIOS		20
+#else
+#define MSP_NUM_GPIOS		28
+#endif
+
+/* -- GPIO Enumerations -- */
+enum msp_gpio_data {
+	MSP_GPIO_LO = 0,
+	MSP_GPIO_HI = 1,
+	MSP_GPIO_NONE,		/* Special - Means pin is out of range */
+	MSP_GPIO_TOGGLE,	/* Special - Sets pin to opposite */
+};
+
+enum msp_gpio_mode {
+	MSP_GPIO_INPUT		= 0x0,
+	/* MSP_GPIO_ INTERRUPT	= 0x1,	Not supported yet */
+	MSP_GPIO_UART_INPUT	= 0x2,	/* Only GPIO 4 or 5 */
+	MSP_GPIO_OUTPUT		= 0x8,
+	MSP_GPIO_UART_OUTPUT	= 0x9,	/* Only GPIO 2 or 3 */
+	MSP_GPIO_PERIF_TIMERA	= 0x9,	/* Only GPIO 0 or 1 */
+	MSP_GPIO_PERIF_TIMERB	= 0xa,	/* Only GPIO 0 or 1 */
+	MSP_GPIO_UNKNOWN	= 0xb,  /* No such GPIO or mode */
+};
+
+/* -- Static Tables -- */
+
+/* Maps pins to data register */
+static volatile u32 * const MSP_GPIO_DATA_REGISTER[] = {
+	/* GPIO 0 and 1 on the first register */
+	GPIO_DATA1_REG, GPIO_DATA1_REG,
+	/* GPIO 2, 3, 4, and 5 on the second register */
+	GPIO_DATA2_REG, GPIO_DATA2_REG, GPIO_DATA2_REG, GPIO_DATA2_REG,
+	/* GPIO 6, 7, 8, and 9 on the third register */
+	GPIO_DATA3_REG, GPIO_DATA3_REG, GPIO_DATA3_REG, GPIO_DATA3_REG,
+	/* GPIO 10, 11, 12, 13, 14, and 15 on the fourth register */
+	GPIO_DATA4_REG, GPIO_DATA4_REG, GPIO_DATA4_REG, GPIO_DATA4_REG,
+	GPIO_DATA4_REG, GPIO_DATA4_REG,
+	/* GPIO 16 - 23 on the first strange EXTENDED register */
+	EXTENDED_GPIO1_REG, EXTENDED_GPIO1_REG, EXTENDED_GPIO1_REG,
+	EXTENDED_GPIO1_REG, EXTENDED_GPIO1_REG, EXTENDED_GPIO1_REG,
+	EXTENDED_GPIO1_REG, EXTENDED_GPIO1_REG,
+	/* GPIO 24 - 27 on the second strange EXTENDED register */
+	EXTENDED_GPIO2_REG, EXTENDED_GPIO2_REG, EXTENDED_GPIO2_REG,
+	EXTENDED_GPIO2_REG,
+};
+
+/* Maps pins to mode register */
+static volatile u32 * const MSP_GPIO_MODE_REGISTER[] = {
+	/* GPIO 0 and 1 on the first register */
+	GPIO_CFG1_REG, GPIO_CFG1_REG,
+	/* GPIO 2, 3, 4, and 5 on the second register */
+	GPIO_CFG2_REG, GPIO_CFG2_REG, GPIO_CFG2_REG, GPIO_CFG2_REG,
+	/* GPIO 6, 7, 8, and 9 on the third register */
+	GPIO_CFG3_REG, GPIO_CFG3_REG, GPIO_CFG3_REG, GPIO_CFG3_REG,
+	/* GPIO 10, 11, 12, 13, 14, and 15 on the fourth register */
+	GPIO_CFG4_REG, GPIO_CFG4_REG, GPIO_CFG4_REG, GPIO_CFG4_REG,
+	GPIO_CFG4_REG, GPIO_CFG4_REG,
+	/* GPIO 16 - 23 on the first strange EXTENDED register */
+	EXTENDED_GPIO1_REG, EXTENDED_GPIO1_REG, EXTENDED_GPIO1_REG,
+	EXTENDED_GPIO1_REG, EXTENDED_GPIO1_REG, EXTENDED_GPIO1_REG,
+	EXTENDED_GPIO1_REG, EXTENDED_GPIO1_REG,
+	/* GPIO 24 - 27 on the second strange EXTENDED register */
+	EXTENDED_GPIO2_REG, EXTENDED_GPIO2_REG, EXTENDED_GPIO2_REG,
+	EXTENDED_GPIO2_REG,
+};
+
+/* Maps 'basic' pins to relative offset from 0 per register */
+static int MSP_GPIO_OFFSET[] = {
+	/* GPIO 0 and 1 on the first register */
+	0, 0,
+	/* GPIO 2, 3, 4, and 5 on the second register */
+	2, 2, 2, 2,
+	/* GPIO 6, 7, 8, and 9 on the third register */
+	6, 6, 6, 6,
+	/* GPIO 10, 11, 12, 13, 14, and 15 on the fourth register */
+	10, 10, 10, 10, 10, 10,
+};
+
+/* Maps MODE to allowed pin mask */
+static unsigned int MSP_GPIO_MODE_ALLOWED[] = {
+	0xffffffff,	/* Mode 0 - INPUT */
+	0x00000,	/* Mode 1 - INTERRUPT */
+	0x00030,	/* Mode 2 - UART_INPUT (GPIO 4, 5)*/
+	0, 0, 0, 0, 0,	/* Modes 3, 4, 5, 6, and 7 are reserved */
+	0xffffffff,	/* Mode 8 - OUTPUT */
+	0x0000f,	/* Mode 9 - UART_OUTPUT/
+				PERF_TIMERA (GPIO 0, 1, 2, 3) */
+	0x00003,	/* Mode a - PERF_TIMERB (GPIO 0, 1) */
+	0x00000,	/* Mode b - Not really a mode! */
+};
+
+/* -- Bit masks -- */
+
+/* This gives you the 'register relative offset gpio' number */
+#define OFFSET_GPIO_NUMBER(gpio)	(gpio - MSP_GPIO_OFFSET[gpio])
+
+/* These take the 'register relative offset gpio' number */
+#define BASIC_DATA_REG_MASK(ogpio)		(1 << ogpio)
+#define BASIC_MODE_REG_VALUE(mode, ogpio)	\
+	(mode << BASIC_MODE_REG_SHIFT(ogpio))
+#define BASIC_MODE_REG_MASK(ogpio)		\
+	BASIC_MODE_REG_VALUE(0xf, ogpio)
+#define BASIC_MODE_REG_SHIFT(ogpio)		(ogpio * 4)
+#define BASIC_MODE_REG_FROM_REG(data, ogpio)	\
+	((data & BASIC_MODE_REG_MASK(ogpio)) >> BASIC_MODE_REG_SHIFT(ogpio))
+
+/* These take the actual GPIO number (0 through 15) */
+#define BASIC_DATA_MASK(gpio)	\
+	BASIC_DATA_REG_MASK(OFFSET_GPIO_NUMBER(gpio))
+#define BASIC_MODE_MASK(gpio)	\
+	BASIC_MODE_REG_MASK(OFFSET_GPIO_NUMBER(gpio))
+#define BASIC_MODE(mode, gpio)	\
+	BASIC_MODE_REG_VALUE(mode, OFFSET_GPIO_NUMBER(gpio))
+#define BASIC_MODE_SHIFT(gpio)	\
+	BASIC_MODE_REG_SHIFT(OFFSET_GPIO_NUMBER(gpio))
+#define BASIC_MODE_FROM_REG(data, gpio)	\
+	BASIC_MODE_REG_FROM_REG(data, OFFSET_GPIO_NUMBER(gpio))
+
+/*
+ * Each extended GPIO register is 32 bits long and is responsible for up to
+ * eight GPIOs. The least significant 16 bits contain the set and clear bit
+ * pair for each of the GPIOs. The most significant 16 bits contain the
+ * disable and enable bit pair for each of the GPIOs. For example, the
+ * extended GPIO reg for GPIOs 16-23 is as follows:
+ *
+ *	31: GPIO23_DISABLE
+ *	...
+ *	19: GPIO17_DISABLE
+ *	18: GPIO17_ENABLE
+ *	17: GPIO16_DISABLE
+ *	16: GPIO16_ENABLE
+ *	...
+ *	3:  GPIO17_SET
+ *	2:  GPIO17_CLEAR
+ *	1:  GPIO16_SET
+ *	0:  GPIO16_CLEAR
+ */
+
+/* This gives the 'register relative offset gpio' number */
+#define EXTENDED_OFFSET_GPIO(gpio)	(gpio < 24 ? gpio - 16 : gpio - 24)
+
+/* These take the 'register relative offset gpio' number */
+#define EXTENDED_REG_DISABLE(ogpio)	(0x2 << ((ogpio * 2) + 16))
+#define EXTENDED_REG_ENABLE(ogpio)	(0x1 << ((ogpio * 2) + 16))
+#define EXTENDED_REG_SET(ogpio)		(0x2 << (ogpio * 2))
+#define EXTENDED_REG_CLR(ogpio)		(0x1 << (ogpio * 2))
+
+/* These take the actual GPIO number (16 through 27) */
+#define EXTENDED_DISABLE(gpio)	\
+	EXTENDED_REG_DISABLE(EXTENDED_OFFSET_GPIO(gpio))
+#define EXTENDED_ENABLE(gpio)	\
+	EXTENDED_REG_ENABLE(EXTENDED_OFFSET_GPIO(gpio))
+#define EXTENDED_SET(gpio)	\
+	EXTENDED_REG_SET(EXTENDED_OFFSET_GPIO(gpio))
+#define EXTENDED_CLR(gpio)	\
+	EXTENDED_REG_CLR(EXTENDED_OFFSET_GPIO(gpio))
+
+#define EXTENDED_FULL_MASK		(0xffffffff)
+
+/* -- API inline-functions -- */
+
+/*
+ * Gets the current value of the specified pin
+ */
+static inline enum msp_gpio_data msp_gpio_pin_get(unsigned int gpio)
+{
+	u32 pinhi_mask = 0, pinhi_mask2 = 0;
+
+	if (gpio >= MSP_NUM_GPIOS)
+		return MSP_GPIO_NONE;
+
+	if (gpio < 16) {
+		pinhi_mask = BASIC_DATA_MASK(gpio);
+	} else {
+		/*
+		 * Two cases are possible with the EXTENDED register:
+		 *  - In output mode (ENABLED flag set), check the CLR bit
+		 *  - In input mode (ENABLED flag not set), check the SET bit
+		 */
+		pinhi_mask = EXTENDED_ENABLE(gpio) | EXTENDED_CLR(gpio);
+		pinhi_mask2 = EXTENDED_SET(gpio);
+	}
+	if (((*MSP_GPIO_DATA_REGISTER[gpio] & pinhi_mask) == pinhi_mask) ||
+	    (*MSP_GPIO_DATA_REGISTER[gpio] & pinhi_mask2))
+		return MSP_GPIO_HI;
+	else
+		return MSP_GPIO_LO;
+}
+
+/* Sets the specified pin to the specified value */
+static inline void msp_gpio_pin_set(enum msp_gpio_data data, unsigned int gpio)
+{
+	if (gpio >= MSP_NUM_GPIOS)
+		return;
+
+	if (gpio < 16) {
+		if (data == MSP_GPIO_TOGGLE)
+			toggle_reg32(MSP_GPIO_DATA_REGISTER[gpio],
+					BASIC_DATA_MASK(gpio));
+		else if (data == MSP_GPIO_HI)
+			set_reg32(MSP_GPIO_DATA_REGISTER[gpio],
+					BASIC_DATA_MASK(gpio));
+		else
+			clear_reg32(MSP_GPIO_DATA_REGISTER[gpio],
+					BASIC_DATA_MASK(gpio));
+	} else {
+		if (data == MSP_GPIO_TOGGLE) {
+			/* Special ugly case:
+			 *   We have to read the CLR bit.
+			 *   If set, we write the CLR bit.
+			 *   If not, we write the SET bit.
+			 */
+			u32 tmpdata;
+
+			custom_read_reg32(MSP_GPIO_DATA_REGISTER[gpio],
+								tmpdata);
+			if (tmpdata & EXTENDED_CLR(gpio))
+				tmpdata = EXTENDED_CLR(gpio);
+			else
+				tmpdata = EXTENDED_SET(gpio);
+			custom_write_reg32(MSP_GPIO_DATA_REGISTER[gpio],
+								tmpdata);
+		} else {
+			u32 newdata;
+
+			if (data == MSP_GPIO_HI)
+				newdata = EXTENDED_SET(gpio);
+			else
+				newdata = EXTENDED_CLR(gpio);
+			set_value_reg32(MSP_GPIO_DATA_REGISTER[gpio],
+						EXTENDED_FULL_MASK, newdata);
+		}
+	}
+}
+
+/* Sets the specified pin to the specified value */
+static inline void msp_gpio_pin_hi(unsigned int gpio)
+{
+	msp_gpio_pin_set(MSP_GPIO_HI, gpio);
+}
+
+/* Sets the specified pin to the specified value */
+static inline void msp_gpio_pin_lo(unsigned int gpio)
+{
+	msp_gpio_pin_set(MSP_GPIO_LO, gpio);
+}
+
+/* Sets the specified pin to the opposite value */
+static inline void msp_gpio_pin_toggle(unsigned int gpio)
+{
+	msp_gpio_pin_set(MSP_GPIO_TOGGLE, gpio);
+}
+
+/* Gets the mode of the specified pin */
+static inline enum msp_gpio_mode msp_gpio_pin_get_mode(unsigned int gpio)
+{
+	enum msp_gpio_mode retval = MSP_GPIO_UNKNOWN;
+	uint32_t data;
+
+	if (gpio >= MSP_NUM_GPIOS)
+		return retval;
+
+	data = *MSP_GPIO_MODE_REGISTER[gpio];
+
+	if (gpio < 16) {
+		retval = BASIC_MODE_FROM_REG(data, gpio);
+	} else {
+		/* Extended pins can only be either INPUT or OUTPUT */
+		if (data & EXTENDED_ENABLE(gpio))
+			retval = MSP_GPIO_OUTPUT;
+		else
+			retval = MSP_GPIO_INPUT;
+	}
+
+	return retval;
+}
+
+/*
+ * Sets the specified mode on the requested pin
+ * Returns 0 on success, or -1 if that mode is not allowed on this pin
+ */
+static inline int msp_gpio_pin_mode(enum msp_gpio_mode mode, unsigned int gpio)
+{
+	u32 modemask, newmode;
+
+	if ((1 << gpio) & ~MSP_GPIO_MODE_ALLOWED[mode])
+		return -1;
+
+	if (gpio >= MSP_NUM_GPIOS)
+		return -1;
+
+	if (gpio < 16) {
+		modemask = BASIC_MODE_MASK(gpio);
+		newmode =  BASIC_MODE(mode, gpio);
+	} else {
+		modemask = EXTENDED_FULL_MASK;
+		if (mode == MSP_GPIO_INPUT)
+			newmode = EXTENDED_DISABLE(gpio);
+		else
+			newmode = EXTENDED_ENABLE(gpio);
+	}
+	/* Do the set atomically */
+	set_value_reg32(MSP_GPIO_MODE_REGISTER[gpio], modemask, newmode);
+
+	return 0;
+}
+
+#endif /* __MSP_GPIO_MACROS_H__ */
diff --git a/arch/mips/include/asm/pmc-sierra/msp71xx/msp_regops.h b/arch/mips/include/asm/pmc-sierra/msp71xx/msp_regops.h
index 60a5a38dd5b2..7d41474e5488 100644
--- a/arch/mips/include/asm/pmc-sierra/msp71xx/msp_regops.h
+++ b/arch/mips/include/asm/pmc-sierra/msp71xx/msp_regops.h
@@ -205,7 +205,7 @@ static inline u32 blocking_read_reg32(volatile u32 *const addr)
  *   custom_read_reg32(address, tmp);	<-- Reads the address and put the value
  *						in the 'tmp' variable given
  *
- *	From here on out, you are (basicly) atomic, so don't do anything too
+ *	From here on out, you are (basically) atomic, so don't do anything too
  *	fancy!
  *	Also, this code may loop if the end of this block fails to write
  *	everything back safely due do the other CPU, so do NOT do anything
diff --git a/arch/mips/include/asm/pmc-sierra/msp71xx/msp_regs.h b/arch/mips/include/asm/pmc-sierra/msp71xx/msp_regs.h
index 603eb737b4a8..692c1b658b92 100644
--- a/arch/mips/include/asm/pmc-sierra/msp71xx/msp_regs.h
+++ b/arch/mips/include/asm/pmc-sierra/msp71xx/msp_regs.h
@@ -91,12 +91,10 @@
 					/* MAC C device registers       */
 #define MSP_ADSL2_BASE		(MSP_MSB_BASE + 0xA80000)
 					/* ADSL2 device registers       */
-#define MSP_USB_BASE		(MSP_MSB_BASE + 0xB40000)
-					/* USB device registers         */
-#define MSP_USB_BASE_START	(MSP_MSB_BASE + 0xB40100)
-					/* USB device registers         */
-#define MSP_USB_BASE_END	(MSP_MSB_BASE + 0xB401FF)
-					/* USB device registers         */
+#define MSP_USB0_BASE		(MSP_MSB_BASE + 0xB00000)
+					/* USB0 device registers        */
+#define MSP_USB1_BASE		(MSP_MSB_BASE + 0x300000)
+					/* USB1 device registers	*/
 #define MSP_CPUIF_BASE		(MSP_MSB_BASE + 0xC00000)
 					/* CPU interface registers      */
 
@@ -319,8 +317,11 @@
 #define CPU_ERR2_REG		regptr(MSP_SLP_BASE + 0x184)
 					/* CPU/SLP Error status 1       */
 
-#define EXTENDED_GPIO_REG	regptr(MSP_SLP_BASE + 0x188)
-					/* Extended GPIO register       */
+/* Extended GPIO registers       */
+#define EXTENDED_GPIO1_REG	regptr(MSP_SLP_BASE + 0x188)
+#define EXTENDED_GPIO2_REG	regptr(MSP_SLP_BASE + 0x18c)
+#define EXTENDED_GPIO_REG	EXTENDED_GPIO1_REG
+					/* Backward-compatibility	*/
 
 /* System Error registers */
 #define SLP_ERR_STS_REG		regptr(MSP_SLP_BASE + 0x190)
diff --git a/arch/mips/include/asm/pmc-sierra/msp71xx/msp_usb.h b/arch/mips/include/asm/pmc-sierra/msp71xx/msp_usb.h
new file mode 100644
index 000000000000..4c9348df9df2
--- /dev/null
+++ b/arch/mips/include/asm/pmc-sierra/msp71xx/msp_usb.h
@@ -0,0 +1,144 @@
+/******************************************************************
+ * Copyright (c) 2000-2007 PMC-Sierra INC.
+ *
+ *     This program is free software; you can redistribute it
+ *     and/or modify it under the terms of the GNU General
+ *     Public License as published by the Free Software
+ *     Foundation; either version 2 of the License, or (at your
+ *     option) any later version.
+ *
+ *     This program is distributed in the hope that it will be
+ *     useful, but WITHOUT ANY WARRANTY; without even the implied
+ *     warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ *     PURPOSE.  See the GNU General Public License for more
+ *     details.
+ *
+ *     You should have received a copy of the GNU General Public
+ *     License along with this program; if not, write to the Free
+ *     Software Foundation, Inc., 675 Mass Ave, Cambridge, MA
+ *     02139, USA.
+ *
+ * PMC-SIERRA INC. DISCLAIMS ANY LIABILITY OF ANY KIND
+ * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS
+ * SOFTWARE.
+ */
+#ifndef MSP_USB_H_
+#define MSP_USB_H_
+
+#ifdef CONFIG_MSP_HAS_DUAL_USB
+#define NUM_USB_DEVS   2
+#else
+#define NUM_USB_DEVS   1
+#endif
+
+/* Register spaces for USB host 0 */
+#define MSP_USB0_MAB_START	(MSP_USB0_BASE + 0x0)
+#define MSP_USB0_MAB_END	(MSP_USB0_BASE + 0x17)
+#define MSP_USB0_ID_START	(MSP_USB0_BASE + 0x40000)
+#define MSP_USB0_ID_END		(MSP_USB0_BASE + 0x4008f)
+#define MSP_USB0_HS_START	(MSP_USB0_BASE + 0x40100)
+#define MSP_USB0_HS_END		(MSP_USB0_BASE + 0x401FF)
+
+/* Register spaces for USB host 1 */
+#define	MSP_USB1_MAB_START	(MSP_USB1_BASE + 0x0)
+#define MSP_USB1_MAB_END	(MSP_USB1_BASE + 0x17)
+#define MSP_USB1_ID_START	(MSP_USB1_BASE + 0x40000)
+#define MSP_USB1_ID_END		(MSP_USB1_BASE + 0x4008f)
+#define MSP_USB1_HS_START	(MSP_USB1_BASE + 0x40100)
+#define MSP_USB1_HS_END		(MSP_USB1_BASE + 0x401ff)
+
+/* USB Identification registers */
+struct msp_usbid_regs {
+	u32 id;		/* 0x0: Identification register */
+	u32 hwgen;	/* 0x4: General HW params */
+	u32 hwhost;	/* 0x8: Host HW params */
+	u32 hwdev;	/* 0xc: Device HW params */
+	u32 hwtxbuf;	/* 0x10: Tx buffer HW params */
+	u32 hwrxbuf;	/* 0x14: Rx buffer HW params */
+	u32 reserved[26];
+	u32 timer0_load; /* 0x80: General-purpose timer 0 load*/
+	u32 timer0_ctrl; /* 0x84: General-purpose timer 0 control */
+	u32 timer1_load; /* 0x88: General-purpose timer 1 load*/
+	u32 timer1_ctrl; /* 0x8c: General-purpose timer 1 control */
+};
+
+/* MSBus to AMBA registers */
+struct msp_mab_regs {
+	u32 isr;	/* 0x0: Interrupt status */
+	u32 imr;	/* 0x4: Interrupt mask */
+	u32 thcr0;	/* 0x8: Transaction header capture 0 */
+	u32 thcr1;	/* 0xc: Transaction header capture 1 */
+	u32 int_stat;	/* 0x10: Interrupt status summary */
+	u32 phy_cfg;	/* 0x14: USB phy config */
+};
+
+/* EHCI registers */
+struct msp_usbhs_regs {
+	u32 hciver;	/* 0x0: Version and offset to operational regs */
+	u32 hcsparams;	/* 0x4: Host control structural parameters */
+	u32 hccparams;	/* 0x8: Host control capability parameters */
+	u32 reserved0[5];
+	u32 dciver;	/* 0x20: Device interface version */
+	u32 dccparams;	/* 0x24: Device control capability parameters */
+	u32 reserved1[6];
+	u32 cmd;	/* 0x40: USB command */
+	u32 sts;	/* 0x44: USB status */
+	u32 int_ena;	/* 0x48: USB interrupt enable */
+	u32 frindex;	/* 0x4c: Frame index */
+	u32 reserved3;
+	union {
+		struct {
+			u32 flb_addr; /* 0x54: Frame list base address */
+			u32 next_async_addr; /* 0x58: next asynchronous addr */
+			u32 ttctrl; /* 0x5c: embedded transaction translator
+							async buffer status */
+			u32 burst_size; /* 0x60: Controller burst size */
+			u32 tx_fifo_ctrl; /* 0x64: Tx latency FIFO tuning */
+			u32 reserved0[4];
+			u32 endpt_nak; /* 0x78: Endpoint NAK */
+			u32 endpt_nak_ena; /* 0x7c: Endpoint NAK enable */
+			u32 cfg_flag; /* 0x80: Config flag */
+			u32 port_sc1; /* 0x84: Port status & control 1 */
+			u32 reserved1[7];
+			u32 otgsc;	/* 0xa4: OTG status & control */
+			u32 mode;	/* 0xa8: USB controller mode */
+		} host;
+
+		struct {
+			u32 dev_addr; /* 0x54: Device address */
+			u32 endpt_list_addr; /* 0x58: Endpoint list address */
+			u32 reserved0[7];
+			u32 endpt_nak;	/* 0x74 */
+			u32 endpt_nak_ctrl; /* 0x78 */
+			u32 cfg_flag; /* 0x80 */
+			u32 port_sc1; /* 0x84: Port status & control 1 */
+			u32 reserved[7];
+			u32 otgsc;	/* 0xa4: OTG status & control */
+			u32 mode;	/* 0xa8: USB controller mode */
+			u32 endpt_setup_stat; /* 0xac */
+			u32 endpt_prime; /* 0xb0 */
+			u32 endpt_flush; /* 0xb4 */
+			u32 endpt_stat; /* 0xb8 */
+			u32 endpt_complete; /* 0xbc */
+			u32 endpt_ctrl0; /* 0xc0 */
+			u32 endpt_ctrl1; /* 0xc4 */
+			u32 endpt_ctrl2; /* 0xc8 */
+			u32 endpt_ctrl3; /* 0xcc */
+		} device;
+	} u;
+};
+/*
+ * Container for the more-generic platform_device.
+ * This exists mainly as a way to map the non-standard register
+ * spaces and make them accessible to the USB ISR.
+ */
+struct mspusb_device {
+	struct msp_mab_regs   __iomem *mab_regs;
+	struct msp_usbid_regs __iomem *usbid_regs;
+	struct msp_usbhs_regs __iomem *usbhs_regs;
+	struct platform_device dev;
+};
+
+#define to_mspusb_device(x) container_of((x), struct mspusb_device, dev)
+#define TO_HOST_ID(x) ((x) & 0x3)
+#endif /*MSP_USB_H_*/
diff --git a/arch/mips/include/asm/processor.h b/arch/mips/include/asm/processor.h
index ead6928fa6b8..c104f1039a69 100644
--- a/arch/mips/include/asm/processor.h
+++ b/arch/mips/include/asm/processor.h
@@ -337,7 +337,7 @@ unsigned long get_wchan(struct task_struct *p);
 /*
  * Return_address is a replacement for __builtin_return_address(count)
  * which on certain architectures cannot reasonably be implemented in GCC
- * (MIPS, Alpha) or is unuseable with -fomit-frame-pointer (i386).
+ * (MIPS, Alpha) or is unusable with -fomit-frame-pointer (i386).
  * Note that __builtin_return_address(x>=1) is forbidden because GCC
  * aborts compilation on some CPUs.  It's simply not possible to unwind
  * some CPU's stackframes.
diff --git a/arch/mips/include/asm/sgi/ioc.h b/arch/mips/include/asm/sgi/ioc.h
index 57a971904cfe..380347b648e2 100644
--- a/arch/mips/include/asm/sgi/ioc.h
+++ b/arch/mips/include/asm/sgi/ioc.h
@@ -17,7 +17,7 @@
 #include <asm/sgi/pi1.h>
 
 /*
- * All registers are 8-bit wide alligned on 32-bit boundary. Bad things
+ * All registers are 8-bit wide aligned on 32-bit boundary. Bad things
  * happen if you try word access them. You have been warned.
  */
 
diff --git a/arch/mips/include/asm/sibyte/sb1250_mac.h b/arch/mips/include/asm/sibyte/sb1250_mac.h
index 591b9061fd8e..77f787284235 100644
--- a/arch/mips/include/asm/sibyte/sb1250_mac.h
+++ b/arch/mips/include/asm/sibyte/sb1250_mac.h
@@ -520,7 +520,7 @@
 #define G_MAC_RX_EOP_COUNTER(x)     _SB_GETVALUE(x, S_MAC_RX_EOP_COUNTER, M_MAC_RX_EOP_COUNTER)
 
 /*
- * MAC Recieve Address Filter Exact Match Registers (Table 9-21)
+ * MAC Receive Address Filter Exact Match Registers (Table 9-21)
  * Registers: MAC_ADDR0_0 through MAC_ADDR7_0
  * Registers: MAC_ADDR0_1 through MAC_ADDR7_1
  * Registers: MAC_ADDR0_2 through MAC_ADDR7_2
@@ -538,7 +538,7 @@
 /* No bitfields */
 
 /*
- * MAC Recieve Address Filter Hash Match Registers (Table 9-22)
+ * MAC Receive Address Filter Hash Match Registers (Table 9-22)
  * Registers: MAC_HASH0_0 through MAC_HASH7_0
  * Registers: MAC_HASH0_1 through MAC_HASH7_1
  * Registers: MAC_HASH0_2 through MAC_HASH7_2
diff --git a/arch/mips/include/asm/siginfo.h b/arch/mips/include/asm/siginfo.h
index 1ca64b4d33d9..20ebeb875ee6 100644
--- a/arch/mips/include/asm/siginfo.h
+++ b/arch/mips/include/asm/siginfo.h
@@ -101,7 +101,7 @@ typedef struct siginfo {
 
 /*
  * si_code values
- * Again these have been choosen to be IRIX compatible.
+ * Again these have been chosen to be IRIX compatible.
  */
 #undef SI_ASYNCIO
 #undef SI_TIMER
diff --git a/arch/mips/include/asm/sn/klconfig.h b/arch/mips/include/asm/sn/klconfig.h
index 09e590daca17..fe02900b930d 100644
--- a/arch/mips/include/asm/sn/klconfig.h
+++ b/arch/mips/include/asm/sn/klconfig.h
@@ -78,7 +78,7 @@ typedef s32 klconf_off_t;
  */
 #define MAX_SLOTS_PER_NODE	(1 + 2 + 6 + 2)
 
-/* XXX if each node is guranteed to have some memory */
+/* XXX if each node is guaranteed to have some memory */
 
 #define MAX_PCI_DEVS		8
 
@@ -539,7 +539,7 @@ typedef struct klinfo_s {                  /* Generic info */
 #define KLSTRUCT_IOC3_TTY 	24
 
 /* Early Access IO proms are compatible
-   only with KLSTRUCT values upto 24. */
+   only with KLSTRUCT values up to 24. */
 
 #define KLSTRUCT_FIBERCHANNEL 	25
 #define KLSTRUCT_MOD_SERIAL_NUM 26
diff --git a/arch/mips/include/asm/sn/sn0/hubio.h b/arch/mips/include/asm/sn/sn0/hubio.h
index 31c76c021bb6..46286d8302a7 100644
--- a/arch/mips/include/asm/sn/sn0/hubio.h
+++ b/arch/mips/include/asm/sn/sn0/hubio.h
@@ -622,7 +622,7 @@ typedef union h1_icrbb_u {
  */
 #define	IIO_ICRB_PROC0		0	/* Source of request is Proc 0 */
 #define	IIO_ICRB_PROC1		1	/* Source of request is Proc 1 */
-#define	IIO_ICRB_GB_REQ		2	/* Source is Guranteed BW request */
+#define	IIO_ICRB_GB_REQ		2	/* Source is Guaranteed BW request */
 #define	IIO_ICRB_IO_REQ		3	/* Source is Normal IO request	*/
 
 /*
diff --git a/arch/mips/include/asm/spinlock.h b/arch/mips/include/asm/spinlock.h
index 396e402fbe2c..ca61e846ab0f 100644
--- a/arch/mips/include/asm/spinlock.h
+++ b/arch/mips/include/asm/spinlock.h
@@ -245,16 +245,16 @@ static inline void arch_read_lock(arch_rwlock_t *rw)
 		__asm__ __volatile__(
 		"	.set	noreorder	# arch_read_lock	\n"
 		"1:	ll	%1, %2					\n"
-		"	bltz	%1, 2f					\n"
+		"	bltz	%1, 3f					\n"
 		"	 addu	%1, 1					\n"
-		"	sc	%1, %0					\n"
+		"2:	sc	%1, %0					\n"
 		"	beqz	%1, 1b					\n"
 		"	 nop						\n"
 		"	.subsection 2					\n"
-		"2:	ll	%1, %2					\n"
-		"	bltz	%1, 2b					\n"
+		"3:	ll	%1, %2					\n"
+		"	bltz	%1, 3b					\n"
 		"	 addu	%1, 1					\n"
-		"	b	1b					\n"
+		"	b	2b					\n"
 		"	 nop						\n"
 		"	.previous					\n"
 		"	.set	reorder					\n"
@@ -324,16 +324,16 @@ static inline void arch_write_lock(arch_rwlock_t *rw)
 		__asm__ __volatile__(
 		"	.set	noreorder	# arch_write_lock	\n"
 		"1:	ll	%1, %2					\n"
-		"	bnez	%1, 2f					\n"
+		"	bnez	%1, 3f					\n"
 		"	 lui	%1, 0x8000				\n"
-		"	sc	%1, %0					\n"
-		"	beqz	%1, 2f					\n"
+		"2:	sc	%1, %0					\n"
+		"	beqz	%1, 3f					\n"
 		"	 nop						\n"
 		"	.subsection 2					\n"
-		"2:	ll	%1, %2					\n"
-		"	bnez	%1, 2b					\n"
+		"3:	ll	%1, %2					\n"
+		"	bnez	%1, 3b					\n"
 		"	 lui	%1, 0x8000				\n"
-		"	b	1b					\n"
+		"	b	2b					\n"
 		"	 nop						\n"
 		"	.previous					\n"
 		"	.set	reorder					\n"
diff --git a/arch/mips/include/asm/stackframe.h b/arch/mips/include/asm/stackframe.h
index 58730c5ce4bf..b4ba2449444b 100644
--- a/arch/mips/include/asm/stackframe.h
+++ b/arch/mips/include/asm/stackframe.h
@@ -346,7 +346,7 @@
 		 * we can't dispatch it directly without trashing
 		 * some registers, so we'll try to detect this unlikely
 		 * case and program a software interrupt in the VPE,
-		 * as would be done for a cross-VPE IPI.  To accomodate
+		 * as would be done for a cross-VPE IPI.  To accommodate
 		 * the handling of that case, we're doing a DVPE instead
 		 * of just a DMT here to protect against other threads.
 		 * This is a lot of cruft to cover a tiny window.
diff --git a/arch/mips/include/asm/unistd.h b/arch/mips/include/asm/unistd.h
index 550725b881d5..fa2e37ea2be1 100644
--- a/arch/mips/include/asm/unistd.h
+++ b/arch/mips/include/asm/unistd.h
@@ -359,16 +359,20 @@
 #define __NR_fanotify_init		(__NR_Linux + 336)
 #define __NR_fanotify_mark		(__NR_Linux + 337)
 #define __NR_prlimit64			(__NR_Linux + 338)
+#define __NR_name_to_handle_at		(__NR_Linux + 339)
+#define __NR_open_by_handle_at		(__NR_Linux + 340)
+#define __NR_clock_adjtime		(__NR_Linux + 341)
+#define __NR_syncfs			(__NR_Linux + 342)
 
 /*
  * Offset of the last Linux o32 flavoured syscall
  */
-#define __NR_Linux_syscalls		338
+#define __NR_Linux_syscalls		342
 
 #endif /* _MIPS_SIM == _MIPS_SIM_ABI32 */
 
 #define __NR_O32_Linux			4000
-#define __NR_O32_Linux_syscalls		338
+#define __NR_O32_Linux_syscalls		342
 
 #if _MIPS_SIM == _MIPS_SIM_ABI64
 
@@ -674,16 +678,20 @@
 #define __NR_fanotify_init		(__NR_Linux + 295)
 #define __NR_fanotify_mark		(__NR_Linux + 296)
 #define __NR_prlimit64			(__NR_Linux + 297)
+#define __NR_name_to_handle_at		(__NR_Linux + 298)
+#define __NR_open_by_handle_at		(__NR_Linux + 299)
+#define __NR_clock_adjtime		(__NR_Linux + 300)
+#define __NR_syncfs			(__NR_Linux + 301)
 
 /*
  * Offset of the last Linux 64-bit flavoured syscall
  */
-#define __NR_Linux_syscalls		297
+#define __NR_Linux_syscalls		301
 
 #endif /* _MIPS_SIM == _MIPS_SIM_ABI64 */
 
 #define __NR_64_Linux			5000
-#define __NR_64_Linux_syscalls		297
+#define __NR_64_Linux_syscalls		301
 
 #if _MIPS_SIM == _MIPS_SIM_NABI32
 
@@ -994,16 +1002,20 @@
 #define __NR_fanotify_init		(__NR_Linux + 300)
 #define __NR_fanotify_mark		(__NR_Linux + 301)
 #define __NR_prlimit64			(__NR_Linux + 302)
+#define __NR_name_to_handle_at		(__NR_Linux + 303)
+#define __NR_open_by_handle_at		(__NR_Linux + 304)
+#define __NR_clock_adjtime		(__NR_Linux + 305)
+#define __NR_syncfs			(__NR_Linux + 306)
 
 /*
  * Offset of the last N32 flavoured syscall
  */
-#define __NR_Linux_syscalls		302
+#define __NR_Linux_syscalls		306
 
 #endif /* _MIPS_SIM == _MIPS_SIM_NABI32 */
 
 #define __NR_N32_Linux			6000
-#define __NR_N32_Linux_syscalls		302
+#define __NR_N32_Linux_syscalls		306
 
 #ifdef __KERNEL__
 
diff --git a/arch/mips/include/asm/war.h b/arch/mips/include/asm/war.h
index 22361d5e3bf0..fa133c1bc1f9 100644
--- a/arch/mips/include/asm/war.h
+++ b/arch/mips/include/asm/war.h
@@ -227,7 +227,7 @@
 #endif
 
 /*
- * On the R10000 upto version 2.6 (not sure about 2.7) there is a bug that
+ * On the R10000 up to version 2.6 (not sure about 2.7) there is a bug that
  * may cause ll / sc and lld / scd sequences to execute non-atomically.
  */
 #ifndef R10000_LLSC_WAR
diff --git a/arch/mips/jazz/irq.c b/arch/mips/jazz/irq.c
index 35b3e2f0af04..260df4750949 100644
--- a/arch/mips/jazz/irq.c
+++ b/arch/mips/jazz/irq.c
@@ -23,9 +23,9 @@
 
 static DEFINE_RAW_SPINLOCK(r4030_lock);
 
-static void enable_r4030_irq(unsigned int irq)
+static void enable_r4030_irq(struct irq_data *d)
 {
-	unsigned int mask = 1 << (irq - JAZZ_IRQ_START);
+	unsigned int mask = 1 << (d->irq - JAZZ_IRQ_START);
 	unsigned long flags;
 
 	raw_spin_lock_irqsave(&r4030_lock, flags);
@@ -34,9 +34,9 @@ static void enable_r4030_irq(unsigned int irq)
 	raw_spin_unlock_irqrestore(&r4030_lock, flags);
 }
 
-void disable_r4030_irq(unsigned int irq)
+void disable_r4030_irq(struct irq_data *d)
 {
-	unsigned int mask = ~(1 << (irq - JAZZ_IRQ_START));
+	unsigned int mask = ~(1 << (d->irq - JAZZ_IRQ_START));
 	unsigned long flags;
 
 	raw_spin_lock_irqsave(&r4030_lock, flags);
@@ -47,10 +47,8 @@ void disable_r4030_irq(unsigned int irq)
 
 static struct irq_chip r4030_irq_type = {
 	.name = "R4030",
-	.ack = disable_r4030_irq,
-	.mask = disable_r4030_irq,
-	.mask_ack = disable_r4030_irq,
-	.unmask = enable_r4030_irq,
+	.irq_mask = disable_r4030_irq,
+	.irq_unmask = enable_r4030_irq,
 };
 
 void __init init_r4030_ints(void)
@@ -58,7 +56,7 @@ void __init init_r4030_ints(void)
 	int i;
 
 	for (i = JAZZ_IRQ_START; i <= JAZZ_IRQ_END; i++)
-		set_irq_chip_and_handler(i, &r4030_irq_type, handle_level_irq);
+		irq_set_chip_and_handler(i, &r4030_irq_type, handle_level_irq);
 
 	r4030_write_reg16(JAZZ_IO_IRQ_ENABLE, 0);
 	r4030_read_reg16(JAZZ_IO_IRQ_SOURCE);		/* clear pending IRQs */
diff --git a/arch/mips/jz4740/board-qi_lb60.c b/arch/mips/jz4740/board-qi_lb60.c
index 2c0e107966ad..c3b04be3fb2b 100644
--- a/arch/mips/jz4740/board-qi_lb60.c
+++ b/arch/mips/jz4740/board-qi_lb60.c
@@ -23,6 +23,7 @@
 #include <linux/spi/spi_gpio.h>
 #include <linux/power_supply.h>
 #include <linux/power/jz4740-battery.h>
+#include <linux/power/gpio-charger.h>
 
 #include <asm/mach-jz4740/jz4740_fb.h>
 #include <asm/mach-jz4740/jz4740_mmc.h>
@@ -49,14 +50,14 @@ static bool is_avt2;
 
 /* NAND */
 static struct nand_ecclayout qi_lb60_ecclayout_1gb = {
-/*	.eccbytes = 36,
+	.eccbytes = 36,
 	.eccpos = {
 		6,  7,  8,  9,  10, 11, 12, 13,
 		14, 15, 16, 17, 18, 19, 20, 21,
 		22, 23, 24, 25, 26, 27, 28, 29,
 		30, 31, 32, 33, 34, 35, 36, 37,
 		38, 39, 40, 41
-	},*/
+	},
 	.oobfree = {
 		{ .offset = 2, .length = 4 },
 		{ .offset = 42, .length = 22 }
@@ -64,7 +65,7 @@ static struct nand_ecclayout qi_lb60_ecclayout_1gb = {
 };
 
 /* Early prototypes of the QI LB60 had only 1GB of NAND.
- * In order to support these devices aswell the partition and ecc layout is
+ * In order to support these devices as well the partition and ecc layout is
  * initialized depending on the NAND size */
 static struct mtd_partition qi_lb60_partitions_1gb[] = {
 	{
@@ -85,7 +86,7 @@ static struct mtd_partition qi_lb60_partitions_1gb[] = {
 };
 
 static struct nand_ecclayout qi_lb60_ecclayout_2gb = {
-/*	.eccbytes = 72,
+	.eccbytes = 72,
 	.eccpos = {
 		12, 13, 14, 15, 16, 17, 18, 19,
 		20, 21, 22, 23, 24, 25, 26, 27,
@@ -96,7 +97,7 @@ static struct nand_ecclayout qi_lb60_ecclayout_2gb = {
 		60, 61, 62, 63, 64, 65, 66, 67,
 		68, 69, 70, 71, 72, 73, 74, 75,
 		76, 77, 78, 79, 80, 81, 82, 83
-	},*/
+	},
 	.oobfree = {
 		{ .offset = 2, .length = 10 },
 		{ .offset = 84, .length = 44 },
@@ -396,6 +397,28 @@ static struct platform_device qi_lb60_pwm_beeper = {
 	},
 };
 
+/* charger */
+static char *qi_lb60_batteries[] = {
+	"battery",
+};
+
+static struct gpio_charger_platform_data qi_lb60_charger_pdata = {
+	.name = "usb",
+	.type = POWER_SUPPLY_TYPE_USB,
+	.gpio = JZ_GPIO_PORTD(28),
+	.gpio_active_low = 1,
+	.supplied_to = qi_lb60_batteries,
+	.num_supplicants = ARRAY_SIZE(qi_lb60_batteries),
+};
+
+static struct platform_device qi_lb60_charger_device = {
+	.name = "gpio-charger",
+	.dev = {
+		.platform_data = &qi_lb60_charger_pdata,
+	},
+};
+
+
 static struct platform_device *jz_platform_devices[] __initdata = {
 	&jz4740_udc_device,
 	&jz4740_mmc_device,
@@ -410,12 +433,13 @@ static struct platform_device *jz_platform_devices[] __initdata = {
 	&jz4740_adc_device,
 	&qi_lb60_gpio_keys,
 	&qi_lb60_pwm_beeper,
+	&qi_lb60_charger_device,
 };
 
 static void __init board_gpio_setup(void)
 {
 	/* We only need to enable/disable pullup here for pins used in generic
-	 * drivers. Everything else is done by the drivers themselfs. */
+	 * drivers. Everything else is done by the drivers themselves. */
 	jz_gpio_disable_pullup(QI_LB60_GPIO_SD_VCC_EN_N);
 	jz_gpio_disable_pullup(QI_LB60_GPIO_SD_CD);
 }
diff --git a/arch/mips/jz4740/gpio.c b/arch/mips/jz4740/gpio.c
index 88e6aeda5bf1..73031f7fc827 100644
--- a/arch/mips/jz4740/gpio.c
+++ b/arch/mips/jz4740/gpio.c
@@ -86,7 +86,6 @@ struct jz_gpio_chip {
 	spinlock_t lock;
 
 	struct gpio_chip gpio_chip;
-	struct irq_chip irq_chip;
 	struct sys_device sysdev;
 };
 
@@ -102,9 +101,9 @@ static inline struct jz_gpio_chip *gpio_chip_to_jz_gpio_chip(struct gpio_chip *g
 	return container_of(gpio_chip, struct jz_gpio_chip, gpio_chip);
 }
 
-static inline struct jz_gpio_chip *irq_to_jz_gpio_chip(unsigned int irq)
+static inline struct jz_gpio_chip *irq_to_jz_gpio_chip(struct irq_data *data)
 {
-	return get_irq_chip_data(irq);
+	return irq_data_get_irq_chip_data(data);
 }
 
 static inline void jz_gpio_write_bit(unsigned int gpio, unsigned int reg)
@@ -307,7 +306,7 @@ static void jz_gpio_irq_demux_handler(unsigned int irq, struct irq_desc *desc)
 	uint32_t flag;
 	unsigned int gpio_irq;
 	unsigned int gpio_bank;
-	struct jz_gpio_chip *chip = get_irq_desc_data(desc);
+	struct jz_gpio_chip *chip = irq_desc_get_handler_data(desc);
 
 	gpio_bank = JZ4740_IRQ_GPIO0 - irq;
 
@@ -325,62 +324,52 @@ static void jz_gpio_irq_demux_handler(unsigned int irq, struct irq_desc *desc)
 	generic_handle_irq(gpio_irq);
 };
 
-static inline void jz_gpio_set_irq_bit(unsigned int irq, unsigned int reg)
+static inline void jz_gpio_set_irq_bit(struct irq_data *data, unsigned int reg)
 {
-	struct jz_gpio_chip *chip = irq_to_jz_gpio_chip(irq);
-	writel(IRQ_TO_BIT(irq), chip->base + reg);
+	struct jz_gpio_chip *chip = irq_to_jz_gpio_chip(data);
+	writel(IRQ_TO_BIT(data->irq), chip->base + reg);
 }
 
-static void jz_gpio_irq_mask(unsigned int irq)
+static void jz_gpio_irq_mask(struct irq_data *data)
 {
-	jz_gpio_set_irq_bit(irq, JZ_REG_GPIO_MASK_SET);
+	jz_gpio_set_irq_bit(data, JZ_REG_GPIO_MASK_SET);
 };
 
-static void jz_gpio_irq_unmask(unsigned int irq)
+static void jz_gpio_irq_unmask(struct irq_data *data)
 {
-	struct jz_gpio_chip *chip = irq_to_jz_gpio_chip(irq);
+	struct jz_gpio_chip *chip = irq_to_jz_gpio_chip(data);
 
-	jz_gpio_check_trigger_both(chip, irq);
+	jz_gpio_check_trigger_both(chip, data->irq);
 
-	jz_gpio_set_irq_bit(irq, JZ_REG_GPIO_MASK_CLEAR);
+	jz_gpio_set_irq_bit(data, JZ_REG_GPIO_MASK_CLEAR);
 };
 
 /* TODO: Check if function is gpio */
-static unsigned int jz_gpio_irq_startup(unsigned int irq)
+static unsigned int jz_gpio_irq_startup(struct irq_data *data)
 {
-	struct irq_desc *desc = irq_to_desc(irq);
-
-	jz_gpio_set_irq_bit(irq, JZ_REG_GPIO_SELECT_SET);
-
-	desc->status &= ~IRQ_MASKED;
-	jz_gpio_irq_unmask(irq);
-
+	jz_gpio_set_irq_bit(data, JZ_REG_GPIO_SELECT_SET);
+	jz_gpio_irq_unmask(data);
 	return 0;
 }
 
-static void jz_gpio_irq_shutdown(unsigned int irq)
+static void jz_gpio_irq_shutdown(struct irq_data *data)
 {
-	struct irq_desc *desc = irq_to_desc(irq);
-
-	jz_gpio_irq_mask(irq);
-	desc->status |= IRQ_MASKED;
+	jz_gpio_irq_mask(data);
 
 	/* Set direction to input */
-	jz_gpio_set_irq_bit(irq, JZ_REG_GPIO_DIRECTION_CLEAR);
-	jz_gpio_set_irq_bit(irq, JZ_REG_GPIO_SELECT_CLEAR);
+	jz_gpio_set_irq_bit(data, JZ_REG_GPIO_DIRECTION_CLEAR);
+	jz_gpio_set_irq_bit(data, JZ_REG_GPIO_SELECT_CLEAR);
 }
 
-static void jz_gpio_irq_ack(unsigned int irq)
+static void jz_gpio_irq_ack(struct irq_data *data)
 {
-	jz_gpio_set_irq_bit(irq, JZ_REG_GPIO_FLAG_CLEAR);
+	jz_gpio_set_irq_bit(data, JZ_REG_GPIO_FLAG_CLEAR);
 };
 
-static int jz_gpio_irq_set_type(unsigned int irq, unsigned int flow_type)
+static int jz_gpio_irq_set_type(struct irq_data *data, unsigned int flow_type)
 {
-	struct jz_gpio_chip *chip = irq_to_jz_gpio_chip(irq);
-	struct irq_desc *desc = irq_to_desc(irq);
-
-	jz_gpio_irq_mask(irq);
+	struct jz_gpio_chip *chip = irq_to_jz_gpio_chip(data);
+	unsigned int irq = data->irq;
 
 	if (flow_type == IRQ_TYPE_EDGE_BOTH) {
 		uint32_t value = readl(chip->base + JZ_REG_GPIO_PIN);
@@ -395,45 +384,54 @@ static int jz_gpio_irq_set_type(unsigned int irq, unsigned int flow_type)
 
 	switch (flow_type) {
 	case IRQ_TYPE_EDGE_RISING:
-		jz_gpio_set_irq_bit(irq, JZ_REG_GPIO_DIRECTION_SET);
-		jz_gpio_set_irq_bit(irq, JZ_REG_GPIO_TRIGGER_SET);
+		jz_gpio_set_irq_bit(data, JZ_REG_GPIO_DIRECTION_SET);
+		jz_gpio_set_irq_bit(data, JZ_REG_GPIO_TRIGGER_SET);
 		break;
 	case IRQ_TYPE_EDGE_FALLING:
-		jz_gpio_set_irq_bit(irq, JZ_REG_GPIO_DIRECTION_CLEAR);
-		jz_gpio_set_irq_bit(irq, JZ_REG_GPIO_TRIGGER_SET);
+		jz_gpio_set_irq_bit(data, JZ_REG_GPIO_DIRECTION_CLEAR);
+		jz_gpio_set_irq_bit(data, JZ_REG_GPIO_TRIGGER_SET);
 		break;
 	case IRQ_TYPE_LEVEL_HIGH:
-		jz_gpio_set_irq_bit(irq, JZ_REG_GPIO_DIRECTION_SET);
-		jz_gpio_set_irq_bit(irq, JZ_REG_GPIO_TRIGGER_CLEAR);
+		jz_gpio_set_irq_bit(data, JZ_REG_GPIO_DIRECTION_SET);
+		jz_gpio_set_irq_bit(data, JZ_REG_GPIO_TRIGGER_CLEAR);
 		break;
 	case IRQ_TYPE_LEVEL_LOW:
-		jz_gpio_set_irq_bit(irq, JZ_REG_GPIO_DIRECTION_CLEAR);
-		jz_gpio_set_irq_bit(irq, JZ_REG_GPIO_TRIGGER_CLEAR);
+		jz_gpio_set_irq_bit(data, JZ_REG_GPIO_DIRECTION_CLEAR);
+		jz_gpio_set_irq_bit(data, JZ_REG_GPIO_TRIGGER_CLEAR);
 		break;
 	default:
 		return -EINVAL;
 	}
 
-	if (!(desc->status & IRQ_MASKED))
-		jz_gpio_irq_unmask(irq);
-
 	return 0;
 }
 
-static int jz_gpio_irq_set_wake(unsigned int irq, unsigned int on)
+static int jz_gpio_irq_set_wake(struct irq_data *data, unsigned int on)
 {
-	struct jz_gpio_chip *chip = irq_to_jz_gpio_chip(irq);
+	struct jz_gpio_chip *chip = irq_to_jz_gpio_chip(data);
 	spin_lock(&chip->lock);
 	if (on)
-		chip->wakeup |= IRQ_TO_BIT(irq);
+		chip->wakeup |= IRQ_TO_BIT(data->irq);
 	else
-		chip->wakeup &= ~IRQ_TO_BIT(irq);
+		chip->wakeup &= ~IRQ_TO_BIT(data->irq);
 	spin_unlock(&chip->lock);
 
-	set_irq_wake(chip->irq, on);
+	irq_set_irq_wake(chip->irq, on);
 	return 0;
 }
 
+static struct irq_chip jz_gpio_irq_chip = {
+	.name = "GPIO",
+	.irq_mask = jz_gpio_irq_mask,
+	.irq_unmask = jz_gpio_irq_unmask,
+	.irq_ack = jz_gpio_irq_ack,
+	.irq_startup = jz_gpio_irq_startup,
+	.irq_shutdown = jz_gpio_irq_shutdown,
+	.irq_set_type = jz_gpio_irq_set_type,
+	.irq_set_wake = jz_gpio_irq_set_wake,
+	.flags = IRQCHIP_SET_TYPE_MASKED,
+};
+
 /*
  * This lock class tells lockdep that GPIO irqs are in a different
  * category than their parents, so it won't report false recursion.
@@ -452,16 +450,6 @@ static struct lock_class_key gpio_lock_class;
 		.base = JZ4740_GPIO_BASE_ ## _bank, \
 		.ngpio = JZ4740_GPIO_NUM_ ## _bank, \
 	}, \
-	.irq_chip =  { \
-		.name = "GPIO Bank " # _bank, \
-		.mask = jz_gpio_irq_mask, \
-		.unmask = jz_gpio_irq_unmask, \
-		.ack = jz_gpio_irq_ack, \
-		.startup = jz_gpio_irq_startup, \
-		.shutdown = jz_gpio_irq_shutdown, \
-		.set_type = jz_gpio_irq_set_type, \
-		.set_wake = jz_gpio_irq_set_wake, \
-	}, \
 }
 
 static struct jz_gpio_chip jz4740_gpio_chips[] = {
@@ -522,13 +510,14 @@ static int jz4740_gpio_chip_init(struct jz_gpio_chip *chip, unsigned int id)
 	gpiochip_add(&chip->gpio_chip);
 
 	chip->irq = JZ4740_IRQ_INTC_GPIO(id);
-	set_irq_data(chip->irq, chip);
-	set_irq_chained_handler(chip->irq, jz_gpio_irq_demux_handler);
+	irq_set_handler_data(chip->irq, chip);
+	irq_set_chained_handler(chip->irq, jz_gpio_irq_demux_handler);
 
 	for (irq = chip->irq_base; irq < chip->irq_base + chip->gpio_chip.ngpio; ++irq) {
-		lockdep_set_class(&irq_desc[irq].lock, &gpio_lock_class);
-		set_irq_chip_data(irq, chip);
-		set_irq_chip_and_handler(irq, &chip->irq_chip, handle_level_irq);
+		irq_set_lockdep_class(irq, &gpio_lock_class);
+		irq_set_chip_data(irq, chip);
+		irq_set_chip_and_handler(irq, &jz_gpio_irq_chip,
+					 handle_level_irq);
 	}
 
 	return 0;
diff --git a/arch/mips/jz4740/irq.c b/arch/mips/jz4740/irq.c
index 7d33ff83580f..d82c0c430e03 100644
--- a/arch/mips/jz4740/irq.c
+++ b/arch/mips/jz4740/irq.c
@@ -43,32 +43,37 @@ static uint32_t jz_intc_saved;
 
 #define IRQ_BIT(x) BIT((x) - JZ4740_IRQ_BASE)
 
-static void intc_irq_unmask(unsigned int irq)
+static inline unsigned long intc_irq_bit(struct irq_data *data)
 {
-	writel(IRQ_BIT(irq), jz_intc_base + JZ_REG_INTC_CLEAR_MASK);
+	return (unsigned long)irq_data_get_irq_chip_data(data);
 }
 
-static void intc_irq_mask(unsigned int irq)
+static void intc_irq_unmask(struct irq_data *data)
 {
-	writel(IRQ_BIT(irq), jz_intc_base + JZ_REG_INTC_SET_MASK);
+	writel(intc_irq_bit(data), jz_intc_base + JZ_REG_INTC_CLEAR_MASK);
 }
 
-static int intc_irq_set_wake(unsigned int irq, unsigned int on)
+static void intc_irq_mask(struct irq_data *data)
+{
+	writel(intc_irq_bit(data), jz_intc_base + JZ_REG_INTC_SET_MASK);
+}
+
+static int intc_irq_set_wake(struct irq_data *data, unsigned int on)
 {
 	if (on)
-		jz_intc_wakeup |= IRQ_BIT(irq);
+		jz_intc_wakeup |= intc_irq_bit(data);
 	else
-		jz_intc_wakeup &= ~IRQ_BIT(irq);
+		jz_intc_wakeup &= ~intc_irq_bit(data);
 
 	return 0;
 }
 
 static struct irq_chip intc_irq_type = {
 	.name =		"INTC",
-	.mask =		intc_irq_mask,
-	.mask_ack =	intc_irq_mask,
-	.unmask =	intc_irq_unmask,
-	.set_wake =	intc_irq_set_wake,
+	.irq_mask =	intc_irq_mask,
+	.irq_mask_ack =	intc_irq_mask,
+	.irq_unmask =	intc_irq_unmask,
+	.irq_set_wake =	intc_irq_set_wake,
 };
 
 static irqreturn_t jz4740_cascade(int irq, void *data)
@@ -95,9 +100,12 @@ void __init arch_init_irq(void)
 
 	jz_intc_base = ioremap(JZ4740_INTC_BASE_ADDR, 0x14);
 
+	/* Mask all irqs */
+	writel(0xffffffff, jz_intc_base + JZ_REG_INTC_SET_MASK);
+
 	for (i = JZ4740_IRQ_BASE; i < JZ4740_IRQ_BASE + 32; i++) {
-		intc_irq_mask(i);
-		set_irq_chip_and_handler(i, &intc_irq_type, handle_level_irq);
+		irq_set_chip_data(i, (void *)IRQ_BIT(i));
+		irq_set_chip_and_handler(i, &intc_irq_type, handle_level_irq);
 	}
 
 	setup_irq(2, &jz4740_cascade_action);
diff --git a/arch/mips/kernel/cpu-bugs64.c b/arch/mips/kernel/cpu-bugs64.c
index b8bb8ba60869..f305ca14351b 100644
--- a/arch/mips/kernel/cpu-bugs64.c
+++ b/arch/mips/kernel/cpu-bugs64.c
@@ -73,7 +73,7 @@ static inline void mult_sh_align_mod(long *v1, long *v2, long *w,
 		: "0" (5), "1" (8), "2" (5));
 	align_mod(align, mod);
 	/*
-	 * The trailing nop is needed to fullfill the two-instruction
+	 * The trailing nop is needed to fulfill the two-instruction
 	 * requirement between reading hi/lo and staring a mult/div.
 	 * Leaving it out may cause gas insert a nop itself breaking
 	 * the desired alignment of the next chunk.
diff --git a/arch/mips/kernel/i8259.c b/arch/mips/kernel/i8259.c
index c58176cc796b..c018696765d4 100644
--- a/arch/mips/kernel/i8259.c
+++ b/arch/mips/kernel/i8259.c
@@ -31,19 +31,19 @@
 
 static int i8259A_auto_eoi = -1;
 DEFINE_RAW_SPINLOCK(i8259A_lock);
-static void disable_8259A_irq(unsigned int irq);
-static void enable_8259A_irq(unsigned int irq);
-static void mask_and_ack_8259A(unsigned int irq);
+static void disable_8259A_irq(struct irq_data *d);
+static void enable_8259A_irq(struct irq_data *d);
+static void mask_and_ack_8259A(struct irq_data *d);
 static void init_8259A(int auto_eoi);
 
 static struct irq_chip i8259A_chip = {
-	.name		= "XT-PIC",
-	.mask		= disable_8259A_irq,
-	.disable	= disable_8259A_irq,
-	.unmask		= enable_8259A_irq,
-	.mask_ack	= mask_and_ack_8259A,
+	.name			= "XT-PIC",
+	.irq_mask		= disable_8259A_irq,
+	.irq_disable		= disable_8259A_irq,
+	.irq_unmask		= enable_8259A_irq,
+	.irq_mask_ack		= mask_and_ack_8259A,
 #ifdef CONFIG_MIPS_MT_SMTC_IRQAFF
-	.set_affinity	= plat_set_irq_affinity,
+	.irq_set_affinity	= plat_set_irq_affinity,
 #endif /* CONFIG_MIPS_MT_SMTC_IRQAFF */
 };
 
@@ -59,12 +59,11 @@ static unsigned int cached_irq_mask = 0xffff;
 #define cached_master_mask	(cached_irq_mask)
 #define cached_slave_mask	(cached_irq_mask >> 8)
 
-static void disable_8259A_irq(unsigned int irq)
+static void disable_8259A_irq(struct irq_data *d)
 {
-	unsigned int mask;
+	unsigned int mask, irq = d->irq - I8259A_IRQ_BASE;
 	unsigned long flags;
 
-	irq -= I8259A_IRQ_BASE;
 	mask = 1 << irq;
 	raw_spin_lock_irqsave(&i8259A_lock, flags);
 	cached_irq_mask |= mask;
@@ -75,12 +74,11 @@ static void disable_8259A_irq(unsigned int irq)
 	raw_spin_unlock_irqrestore(&i8259A_lock, flags);
 }
 
-static void enable_8259A_irq(unsigned int irq)
+static void enable_8259A_irq(struct irq_data *d)
 {
-	unsigned int mask;
+	unsigned int mask, irq = d->irq - I8259A_IRQ_BASE;
 	unsigned long flags;
 
-	irq -= I8259A_IRQ_BASE;
 	mask = ~(1 << irq);
 	raw_spin_lock_irqsave(&i8259A_lock, flags);
 	cached_irq_mask &= mask;
@@ -112,7 +110,7 @@ int i8259A_irq_pending(unsigned int irq)
 void make_8259A_irq(unsigned int irq)
 {
 	disable_irq_nosync(irq);
-	set_irq_chip_and_handler(irq, &i8259A_chip, handle_level_irq);
+	irq_set_chip_and_handler(irq, &i8259A_chip, handle_level_irq);
 	enable_irq(irq);
 }
 
@@ -145,12 +143,11 @@ static inline int i8259A_irq_real(unsigned int irq)
  * first, _then_ send the EOI, and the order of EOI
  * to the two 8259s is important!
  */
-static void mask_and_ack_8259A(unsigned int irq)
+static void mask_and_ack_8259A(struct irq_data *d)
 {
-	unsigned int irqmask;
+	unsigned int irqmask, irq = d->irq - I8259A_IRQ_BASE;
 	unsigned long flags;
 
-	irq -= I8259A_IRQ_BASE;
 	irqmask = 1 << irq;
 	raw_spin_lock_irqsave(&i8259A_lock, flags);
 	/*
@@ -290,9 +287,9 @@ static void init_8259A(int auto_eoi)
 		 * In AEOI mode we just have to mask the interrupt
 		 * when acking.
 		 */
-		i8259A_chip.mask_ack = disable_8259A_irq;
+		i8259A_chip.irq_mask_ack = disable_8259A_irq;
 	else
-		i8259A_chip.mask_ack = mask_and_ack_8259A;
+		i8259A_chip.irq_mask_ack = mask_and_ack_8259A;
 
 	udelay(100);		/* wait for 8259A to initialize */
 
@@ -339,8 +336,8 @@ void __init init_i8259_irqs(void)
 	init_8259A(0);
 
 	for (i = I8259A_IRQ_BASE; i < I8259A_IRQ_BASE + 16; i++) {
-		set_irq_chip_and_handler(i, &i8259A_chip, handle_level_irq);
-		set_irq_probe(i);
+		irq_set_chip_and_handler(i, &i8259A_chip, handle_level_irq);
+		irq_set_probe(i);
 	}
 
 	setup_irq(I8259A_IRQ_BASE + PIC_CASCADE_IR, &irq2);
diff --git a/arch/mips/kernel/irq-gic.c b/arch/mips/kernel/irq-gic.c
index 1774271af848..0c527f652196 100644
--- a/arch/mips/kernel/irq-gic.c
+++ b/arch/mips/kernel/irq-gic.c
@@ -87,17 +87,10 @@ unsigned int gic_get_int(void)
 	return i;
 }
 
-static unsigned int gic_irq_startup(unsigned int irq)
+static void gic_irq_ack(struct irq_data *d)
 {
-	irq -= _irqbase;
-	pr_debug("CPU%d: %s: irq%d\n", smp_processor_id(), __func__, irq);
-	GIC_SET_INTR_MASK(irq);
-	return 0;
-}
+	unsigned int irq = d->irq - _irqbase;
 
-static void gic_irq_ack(unsigned int irq)
-{
-	irq -= _irqbase;
 	pr_debug("CPU%d: %s: irq%d\n", smp_processor_id(), __func__, irq);
 	GIC_CLR_INTR_MASK(irq);
 
@@ -105,16 +98,16 @@ static void gic_irq_ack(unsigned int irq)
 		GICWRITE(GIC_REG(SHARED, GIC_SH_WEDGE), irq);
 }
 
-static void gic_mask_irq(unsigned int irq)
+static void gic_mask_irq(struct irq_data *d)
 {
-	irq -= _irqbase;
+	unsigned int irq = d->irq - _irqbase;
 	pr_debug("CPU%d: %s: irq%d\n", smp_processor_id(), __func__, irq);
 	GIC_CLR_INTR_MASK(irq);
 }
 
-static void gic_unmask_irq(unsigned int irq)
+static void gic_unmask_irq(struct irq_data *d)
 {
-	irq -= _irqbase;
+	unsigned int irq = d->irq - _irqbase;
 	pr_debug("CPU%d: %s: irq%d\n", smp_processor_id(), __func__, irq);
 	GIC_SET_INTR_MASK(irq);
 }
@@ -123,13 +116,14 @@ static void gic_unmask_irq(unsigned int irq)
 
 static DEFINE_SPINLOCK(gic_lock);
 
-static int gic_set_affinity(unsigned int irq, const struct cpumask *cpumask)
+static int gic_set_affinity(struct irq_data *d, const struct cpumask *cpumask,
+			    bool force)
 {
+	unsigned int irq = d->irq - _irqbase;
 	cpumask_t	tmp = CPU_MASK_NONE;
 	unsigned long	flags;
 	int		i;
 
-	irq -= _irqbase;
 	pr_debug("%s(%d) called\n", __func__, irq);
 	cpumask_and(&tmp, cpumask, cpu_online_mask);
 	if (cpus_empty(tmp))
@@ -147,23 +141,22 @@ static int gic_set_affinity(unsigned int irq, const struct cpumask *cpumask)
 		set_bit(irq, pcpu_masks[first_cpu(tmp)].pcpu_mask);
 
 	}
-	cpumask_copy(irq_desc[irq].affinity, cpumask);
+	cpumask_copy(d->affinity, cpumask);
 	spin_unlock_irqrestore(&gic_lock, flags);
 
-	return 0;
+	return IRQ_SET_MASK_OK_NOCOPY;
 }
 #endif
 
 static struct irq_chip gic_irq_controller = {
-	.name		=	"MIPS GIC",
-	.startup	=	gic_irq_startup,
-	.ack		=	gic_irq_ack,
-	.mask		=	gic_mask_irq,
-	.mask_ack	=	gic_mask_irq,
-	.unmask		=	gic_unmask_irq,
-	.eoi		=	gic_unmask_irq,
+	.name			=	"MIPS GIC",
+	.irq_ack		=	gic_irq_ack,
+	.irq_mask		=	gic_mask_irq,
+	.irq_mask_ack		=	gic_mask_irq,
+	.irq_unmask		=	gic_unmask_irq,
+	.irq_eoi		=	gic_unmask_irq,
 #ifdef CONFIG_SMP
-	.set_affinity	=	gic_set_affinity,
+	.irq_set_affinity	=	gic_set_affinity,
 #endif
 };
 
@@ -236,7 +229,7 @@ static void __init gic_basic_init(int numintrs, int numvpes,
 	vpe_local_setup(numvpes);
 
 	for (i = _irqbase; i < (_irqbase + numintrs); i++)
-		set_irq_chip(i, &gic_irq_controller);
+		irq_set_chip(i, &gic_irq_controller);
 }
 
 void __init gic_init(unsigned long gic_base_addr,
diff --git a/arch/mips/kernel/irq-gt641xx.c b/arch/mips/kernel/irq-gt641xx.c
index 42ef81461bfc..883fc6cead36 100644
--- a/arch/mips/kernel/irq-gt641xx.c
+++ b/arch/mips/kernel/irq-gt641xx.c
@@ -29,64 +29,64 @@
 
 static DEFINE_RAW_SPINLOCK(gt641xx_irq_lock);
 
-static void ack_gt641xx_irq(unsigned int irq)
+static void ack_gt641xx_irq(struct irq_data *d)
 {
 	unsigned long flags;
 	u32 cause;
 
 	raw_spin_lock_irqsave(&gt641xx_irq_lock, flags);
 	cause = GT_READ(GT_INTRCAUSE_OFS);
-	cause &= ~GT641XX_IRQ_TO_BIT(irq);
+	cause &= ~GT641XX_IRQ_TO_BIT(d->irq);
 	GT_WRITE(GT_INTRCAUSE_OFS, cause);
 	raw_spin_unlock_irqrestore(&gt641xx_irq_lock, flags);
 }
 
-static void mask_gt641xx_irq(unsigned int irq)
+static void mask_gt641xx_irq(struct irq_data *d)
 {
 	unsigned long flags;
 	u32 mask;
 
 	raw_spin_lock_irqsave(&gt641xx_irq_lock, flags);
 	mask = GT_READ(GT_INTRMASK_OFS);
-	mask &= ~GT641XX_IRQ_TO_BIT(irq);
+	mask &= ~GT641XX_IRQ_TO_BIT(d->irq);
 	GT_WRITE(GT_INTRMASK_OFS, mask);
 	raw_spin_unlock_irqrestore(&gt641xx_irq_lock, flags);
 }
 
-static void mask_ack_gt641xx_irq(unsigned int irq)
+static void mask_ack_gt641xx_irq(struct irq_data *d)
 {
 	unsigned long flags;
 	u32 cause, mask;
 
 	raw_spin_lock_irqsave(&gt641xx_irq_lock, flags);
 	mask = GT_READ(GT_INTRMASK_OFS);
-	mask &= ~GT641XX_IRQ_TO_BIT(irq);
+	mask &= ~GT641XX_IRQ_TO_BIT(d->irq);
 	GT_WRITE(GT_INTRMASK_OFS, mask);
 
 	cause = GT_READ(GT_INTRCAUSE_OFS);
-	cause &= ~GT641XX_IRQ_TO_BIT(irq);
+	cause &= ~GT641XX_IRQ_TO_BIT(d->irq);
 	GT_WRITE(GT_INTRCAUSE_OFS, cause);
 	raw_spin_unlock_irqrestore(&gt641xx_irq_lock, flags);
 }
 
-static void unmask_gt641xx_irq(unsigned int irq)
+static void unmask_gt641xx_irq(struct irq_data *d)
 {
 	unsigned long flags;
 	u32 mask;
 
 	raw_spin_lock_irqsave(&gt641xx_irq_lock, flags);
 	mask = GT_READ(GT_INTRMASK_OFS);
-	mask |= GT641XX_IRQ_TO_BIT(irq);
+	mask |= GT641XX_IRQ_TO_BIT(d->irq);
 	GT_WRITE(GT_INTRMASK_OFS, mask);
 	raw_spin_unlock_irqrestore(&gt641xx_irq_lock, flags);
 }
 
 static struct irq_chip gt641xx_irq_chip = {
 	.name		= "GT641xx",
-	.ack		= ack_gt641xx_irq,
-	.mask		= mask_gt641xx_irq,
-	.mask_ack	= mask_ack_gt641xx_irq,
-	.unmask		= unmask_gt641xx_irq,
+	.irq_ack	= ack_gt641xx_irq,
+	.irq_mask	= mask_gt641xx_irq,
+	.irq_mask_ack	= mask_ack_gt641xx_irq,
+	.irq_unmask	= unmask_gt641xx_irq,
 };
 
 void gt641xx_irq_dispatch(void)
@@ -126,6 +126,6 @@ void __init gt641xx_irq_init(void)
 	 * bit31: logical or of bits[25:1].
 	 */
 	for (i = 1; i < 30; i++)
-		set_irq_chip_and_handler(GT641XX_IRQ_BASE + i,
-		                         &gt641xx_irq_chip, handle_level_irq);
+		irq_set_chip_and_handler(GT641XX_IRQ_BASE + i,
+					 &gt641xx_irq_chip, handle_level_irq);
 }
diff --git a/arch/mips/kernel/irq-msc01.c b/arch/mips/kernel/irq-msc01.c
index 6a8cd28133d5..0c6afeed89d2 100644
--- a/arch/mips/kernel/irq-msc01.c
+++ b/arch/mips/kernel/irq-msc01.c
@@ -28,8 +28,10 @@ static unsigned long _icctrl_msc;
 static unsigned int irq_base;
 
 /* mask off an interrupt */
-static inline void mask_msc_irq(unsigned int irq)
+static inline void mask_msc_irq(struct irq_data *d)
 {
+	unsigned int irq = d->irq;
+
 	if (irq < (irq_base + 32))
 		MSCIC_WRITE(MSC01_IC_DISL, 1<<(irq - irq_base));
 	else
@@ -37,8 +39,10 @@ static inline void mask_msc_irq(unsigned int irq)
 }
 
 /* unmask an interrupt */
-static inline void unmask_msc_irq(unsigned int irq)
+static inline void unmask_msc_irq(struct irq_data *d)
 {
+	unsigned int irq = d->irq;
+
 	if (irq < (irq_base + 32))
 		MSCIC_WRITE(MSC01_IC_ENAL, 1<<(irq - irq_base));
 	else
@@ -48,9 +52,11 @@ static inline void unmask_msc_irq(unsigned int irq)
 /*
  * Masks and ACKs an IRQ
  */
-static void level_mask_and_ack_msc_irq(unsigned int irq)
+static void level_mask_and_ack_msc_irq(struct irq_data *d)
 {
-	mask_msc_irq(irq);
+	unsigned int irq = d->irq;
+
+	mask_msc_irq(d);
 	if (!cpu_has_veic)
 		MSCIC_WRITE(MSC01_IC_EOI, 0);
 	/* This actually needs to be a call into platform code */
@@ -60,9 +66,11 @@ static void level_mask_and_ack_msc_irq(unsigned int irq)
 /*
  * Masks and ACKs an IRQ
  */
-static void edge_mask_and_ack_msc_irq(unsigned int irq)
+static void edge_mask_and_ack_msc_irq(struct irq_data *d)
 {
-	mask_msc_irq(irq);
+	unsigned int irq = d->irq;
+
+	mask_msc_irq(d);
 	if (!cpu_has_veic)
 		MSCIC_WRITE(MSC01_IC_EOI, 0);
 	else {
@@ -75,15 +83,6 @@ static void edge_mask_and_ack_msc_irq(unsigned int irq)
 }
 
 /*
- * End IRQ processing
- */
-static void end_msc_irq(unsigned int irq)
-{
-	if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)))
-		unmask_msc_irq(irq);
-}
-
-/*
  * Interrupt handler for interrupts coming from SOC-it.
  */
 void ll_msc_irq(void)
@@ -107,22 +106,20 @@ static void msc_bind_eic_interrupt(int irq, int set)
 
 static struct irq_chip msc_levelirq_type = {
 	.name = "SOC-it-Level",
-	.ack = level_mask_and_ack_msc_irq,
-	.mask = mask_msc_irq,
-	.mask_ack = level_mask_and_ack_msc_irq,
-	.unmask = unmask_msc_irq,
-	.eoi = unmask_msc_irq,
-	.end = end_msc_irq,
+	.irq_ack = level_mask_and_ack_msc_irq,
+	.irq_mask = mask_msc_irq,
+	.irq_mask_ack = level_mask_and_ack_msc_irq,
+	.irq_unmask = unmask_msc_irq,
+	.irq_eoi = unmask_msc_irq,
 };
 
 static struct irq_chip msc_edgeirq_type = {
 	.name = "SOC-it-Edge",
-	.ack = edge_mask_and_ack_msc_irq,
-	.mask = mask_msc_irq,
-	.mask_ack = edge_mask_and_ack_msc_irq,
-	.unmask = unmask_msc_irq,
-	.eoi = unmask_msc_irq,
-	.end = end_msc_irq,
+	.irq_ack = edge_mask_and_ack_msc_irq,
+	.irq_mask = mask_msc_irq,
+	.irq_mask_ack = edge_mask_and_ack_msc_irq,
+	.irq_unmask = unmask_msc_irq,
+	.irq_eoi = unmask_msc_irq,
 };
 
 
@@ -140,16 +137,20 @@ void __init init_msc_irqs(unsigned long icubase, unsigned int irqbase, msc_irqma
 
 		switch (imp->im_type) {
 		case MSC01_IRQ_EDGE:
-			set_irq_chip_and_handler_name(irqbase + n,
-				&msc_edgeirq_type, handle_edge_irq, "edge");
+			irq_set_chip_and_handler_name(irqbase + n,
+						      &msc_edgeirq_type,
+						      handle_edge_irq,
+						      "edge");
 			if (cpu_has_veic)
 				MSCIC_WRITE(MSC01_IC_SUP+n*8, MSC01_IC_SUP_EDGE_BIT);
 			else
 				MSCIC_WRITE(MSC01_IC_SUP+n*8, MSC01_IC_SUP_EDGE_BIT | imp->im_lvl);
 			break;
 		case MSC01_IRQ_LEVEL:
-			set_irq_chip_and_handler_name(irqbase+n,
-				&msc_levelirq_type, handle_level_irq, "level");
+			irq_set_chip_and_handler_name(irqbase + n,
+						      &msc_levelirq_type,
+						      handle_level_irq,
+						      "level");
 			if (cpu_has_veic)
 				MSCIC_WRITE(MSC01_IC_SUP+n*8, 0);
 			else
diff --git a/arch/mips/kernel/irq-rm7000.c b/arch/mips/kernel/irq-rm7000.c
index 9731e8b47862..a8a8977d5887 100644
--- a/arch/mips/kernel/irq-rm7000.c
+++ b/arch/mips/kernel/irq-rm7000.c
@@ -18,23 +18,23 @@
 #include <asm/mipsregs.h>
 #include <asm/system.h>
 
-static inline void unmask_rm7k_irq(unsigned int irq)
+static inline void unmask_rm7k_irq(struct irq_data *d)
 {
-	set_c0_intcontrol(0x100 << (irq - RM7K_CPU_IRQ_BASE));
+	set_c0_intcontrol(0x100 << (d->irq - RM7K_CPU_IRQ_BASE));
 }
 
-static inline void mask_rm7k_irq(unsigned int irq)
+static inline void mask_rm7k_irq(struct irq_data *d)
 {
-	clear_c0_intcontrol(0x100 << (irq - RM7K_CPU_IRQ_BASE));
+	clear_c0_intcontrol(0x100 << (d->irq - RM7K_CPU_IRQ_BASE));
 }
 
 static struct irq_chip rm7k_irq_controller = {
 	.name = "RM7000",
-	.ack = mask_rm7k_irq,
-	.mask = mask_rm7k_irq,
-	.mask_ack = mask_rm7k_irq,
-	.unmask = unmask_rm7k_irq,
-	.eoi	= unmask_rm7k_irq
+	.irq_ack = mask_rm7k_irq,
+	.irq_mask = mask_rm7k_irq,
+	.irq_mask_ack = mask_rm7k_irq,
+	.irq_unmask = unmask_rm7k_irq,
+	.irq_eoi = unmask_rm7k_irq
 };
 
 void __init rm7k_cpu_irq_init(void)
@@ -45,6 +45,6 @@ void __init rm7k_cpu_irq_init(void)
 	clear_c0_intcontrol(0x00000f00);		/* Mask all */
 
 	for (i = base; i < base + 4; i++)
-		set_irq_chip_and_handler(i, &rm7k_irq_controller,
+		irq_set_chip_and_handler(i, &rm7k_irq_controller,
 					 handle_percpu_irq);
 }
diff --git a/arch/mips/kernel/irq-rm9000.c b/arch/mips/kernel/irq-rm9000.c
index b7e4025b58a8..38874a4b9255 100644
--- a/arch/mips/kernel/irq-rm9000.c
+++ b/arch/mips/kernel/irq-rm9000.c
@@ -19,22 +19,22 @@
 #include <asm/mipsregs.h>
 #include <asm/system.h>
 
-static inline void unmask_rm9k_irq(unsigned int irq)
+static inline void unmask_rm9k_irq(struct irq_data *d)
 {
-	set_c0_intcontrol(0x1000 << (irq - RM9K_CPU_IRQ_BASE));
+	set_c0_intcontrol(0x1000 << (d->irq - RM9K_CPU_IRQ_BASE));
 }
 
-static inline void mask_rm9k_irq(unsigned int irq)
+static inline void mask_rm9k_irq(struct irq_data *d)
 {
-	clear_c0_intcontrol(0x1000 << (irq - RM9K_CPU_IRQ_BASE));
+	clear_c0_intcontrol(0x1000 << (d->irq - RM9K_CPU_IRQ_BASE));
 }
 
-static inline void rm9k_cpu_irq_enable(unsigned int irq)
+static inline void rm9k_cpu_irq_enable(struct irq_data *d)
 {
 	unsigned long flags;
 
 	local_irq_save(flags);
-	unmask_rm9k_irq(irq);
+	unmask_rm9k_irq(d);
 	local_irq_restore(flags);
 }
 
@@ -43,50 +43,47 @@ static inline void rm9k_cpu_irq_enable(unsigned int irq)
  */
 static void local_rm9k_perfcounter_irq_startup(void *args)
 {
-	unsigned int irq = (unsigned int) args;
-
-	rm9k_cpu_irq_enable(irq);
+	rm9k_cpu_irq_enable(args);
 }
 
-static unsigned int rm9k_perfcounter_irq_startup(unsigned int irq)
+static unsigned int rm9k_perfcounter_irq_startup(struct irq_data *d)
 {
-	on_each_cpu(local_rm9k_perfcounter_irq_startup, (void *) irq, 1);
+	on_each_cpu(local_rm9k_perfcounter_irq_startup, d, 1);
 
 	return 0;
 }
 
 static void local_rm9k_perfcounter_irq_shutdown(void *args)
 {
-	unsigned int irq = (unsigned int) args;
 	unsigned long flags;
 
 	local_irq_save(flags);
-	mask_rm9k_irq(irq);
+	mask_rm9k_irq(args);
 	local_irq_restore(flags);
 }
 
-static void rm9k_perfcounter_irq_shutdown(unsigned int irq)
+static void rm9k_perfcounter_irq_shutdown(struct irq_data *d)
 {
-	on_each_cpu(local_rm9k_perfcounter_irq_shutdown, (void *) irq, 1);
+	on_each_cpu(local_rm9k_perfcounter_irq_shutdown, d, 1);
 }
 
 static struct irq_chip rm9k_irq_controller = {
 	.name = "RM9000",
-	.ack = mask_rm9k_irq,
-	.mask = mask_rm9k_irq,
-	.mask_ack = mask_rm9k_irq,
-	.unmask = unmask_rm9k_irq,
-	.eoi	= unmask_rm9k_irq
+	.irq_ack = mask_rm9k_irq,
+	.irq_mask = mask_rm9k_irq,
+	.irq_mask_ack = mask_rm9k_irq,
+	.irq_unmask = unmask_rm9k_irq,
+	.irq_eoi = unmask_rm9k_irq
 };
 
 static struct irq_chip rm9k_perfcounter_irq = {
 	.name = "RM9000",
-	.startup = rm9k_perfcounter_irq_startup,
-	.shutdown = rm9k_perfcounter_irq_shutdown,
-	.ack = mask_rm9k_irq,
-	.mask = mask_rm9k_irq,
-	.mask_ack = mask_rm9k_irq,
-	.unmask = unmask_rm9k_irq,
+	.irq_startup = rm9k_perfcounter_irq_startup,
+	.irq_shutdown = rm9k_perfcounter_irq_shutdown,
+	.irq_ack = mask_rm9k_irq,
+	.irq_mask = mask_rm9k_irq,
+	.irq_mask_ack = mask_rm9k_irq,
+	.irq_unmask = unmask_rm9k_irq,
 };
 
 unsigned int rm9000_perfcount_irq;
@@ -101,10 +98,10 @@ void __init rm9k_cpu_irq_init(void)
 	clear_c0_intcontrol(0x0000f000);		/* Mask all */
 
 	for (i = base; i < base + 4; i++)
-		set_irq_chip_and_handler(i, &rm9k_irq_controller,
+		irq_set_chip_and_handler(i, &rm9k_irq_controller,
 					 handle_level_irq);
 
 	rm9000_perfcount_irq = base + 1;
-	set_irq_chip_and_handler(rm9000_perfcount_irq, &rm9k_perfcounter_irq,
+	irq_set_chip_and_handler(rm9000_perfcount_irq, &rm9k_perfcounter_irq,
 				 handle_percpu_irq);
 }
diff --git a/arch/mips/kernel/irq.c b/arch/mips/kernel/irq.c
index 4f93db58a79e..9b734d74ae8e 100644
--- a/arch/mips/kernel/irq.c
+++ b/arch/mips/kernel/irq.c
@@ -81,48 +81,9 @@ void ack_bad_irq(unsigned int irq)
 
 atomic_t irq_err_count;
 
-/*
- * Generic, controller-independent functions:
- */
-
-int show_interrupts(struct seq_file *p, void *v)
+int arch_show_interrupts(struct seq_file *p, int prec)
 {
-	int i = *(loff_t *) v, j;
-	struct irqaction * action;
-	unsigned long flags;
-
-	if (i == 0) {
-		seq_printf(p, "           ");
-		for_each_online_cpu(j)
-			seq_printf(p, "CPU%d       ", j);
-		seq_putc(p, '\n');
-	}
-
-	if (i < NR_IRQS) {
-		raw_spin_lock_irqsave(&irq_desc[i].lock, flags);
-		action = irq_desc[i].action;
-		if (!action)
-			goto skip;
-		seq_printf(p, "%3d: ", i);
-#ifndef CONFIG_SMP
-		seq_printf(p, "%10u ", kstat_irqs(i));
-#else
-		for_each_online_cpu(j)
-			seq_printf(p, "%10u ", kstat_irqs_cpu(i, j));
-#endif
-		seq_printf(p, " %14s", irq_desc[i].chip->name);
-		seq_printf(p, "  %s", action->name);
-
-		for (action=action->next; action; action = action->next)
-			seq_printf(p, ", %s", action->name);
-
-		seq_putc(p, '\n');
-skip:
-		raw_spin_unlock_irqrestore(&irq_desc[i].lock, flags);
-	} else if (i == NR_IRQS) {
-		seq_putc(p, '\n');
-		seq_printf(p, "ERR: %10u\n", atomic_read(&irq_err_count));
-	}
+	seq_printf(p, "%*s: %10u\n", prec, "ERR", atomic_read(&irq_err_count));
 	return 0;
 }
 
@@ -141,7 +102,7 @@ void __init init_IRQ(void)
 #endif
 
 	for (i = 0; i < NR_IRQS; i++)
-		set_irq_noprobe(i);
+		irq_set_noprobe(i);
 
 	arch_init_irq();
 
@@ -183,8 +144,8 @@ void __irq_entry do_IRQ(unsigned int irq)
 {
 	irq_enter();
 	check_stack_overflow();
-	__DO_IRQ_SMTC_HOOK(irq);
-	generic_handle_irq(irq);
+	if (!smtc_handle_on_other_cpu(irq))
+		generic_handle_irq(irq);
 	irq_exit();
 }
 
@@ -197,7 +158,7 @@ void __irq_entry do_IRQ(unsigned int irq)
 void __irq_entry do_IRQ_no_affinity(unsigned int irq)
 {
 	irq_enter();
-	__NO_AFFINITY_IRQ_SMTC_HOOK(irq);
+	smtc_im_backstop(irq);
 	generic_handle_irq(irq);
 	irq_exit();
 }
diff --git a/arch/mips/kernel/irq_cpu.c b/arch/mips/kernel/irq_cpu.c
index 0262abe09121..6e71b284f6c9 100644
--- a/arch/mips/kernel/irq_cpu.c
+++ b/arch/mips/kernel/irq_cpu.c
@@ -37,42 +37,38 @@
 #include <asm/mipsmtregs.h>
 #include <asm/system.h>
 
-static inline void unmask_mips_irq(unsigned int irq)
+static inline void unmask_mips_irq(struct irq_data *d)
 {
-	set_c0_status(0x100 << (irq - MIPS_CPU_IRQ_BASE));
+	set_c0_status(0x100 << (d->irq - MIPS_CPU_IRQ_BASE));
 	irq_enable_hazard();
 }
 
-static inline void mask_mips_irq(unsigned int irq)
+static inline void mask_mips_irq(struct irq_data *d)
 {
-	clear_c0_status(0x100 << (irq - MIPS_CPU_IRQ_BASE));
+	clear_c0_status(0x100 << (d->irq - MIPS_CPU_IRQ_BASE));
 	irq_disable_hazard();
 }
 
 static struct irq_chip mips_cpu_irq_controller = {
 	.name		= "MIPS",
-	.ack		= mask_mips_irq,
-	.mask		= mask_mips_irq,
-	.mask_ack	= mask_mips_irq,
-	.unmask		= unmask_mips_irq,
-	.eoi		= unmask_mips_irq,
+	.irq_ack	= mask_mips_irq,
+	.irq_mask	= mask_mips_irq,
+	.irq_mask_ack	= mask_mips_irq,
+	.irq_unmask	= unmask_mips_irq,
+	.irq_eoi	= unmask_mips_irq,
 };
 
 /*
  * Basically the same as above but taking care of all the MT stuff
  */
 
-#define unmask_mips_mt_irq	unmask_mips_irq
-#define mask_mips_mt_irq	mask_mips_irq
-
-static unsigned int mips_mt_cpu_irq_startup(unsigned int irq)
+static unsigned int mips_mt_cpu_irq_startup(struct irq_data *d)
 {
 	unsigned int vpflags = dvpe();
 
-	clear_c0_cause(0x100 << (irq - MIPS_CPU_IRQ_BASE));
+	clear_c0_cause(0x100 << (d->irq - MIPS_CPU_IRQ_BASE));
 	evpe(vpflags);
-	unmask_mips_mt_irq(irq);
-
+	unmask_mips_irq(d);
 	return 0;
 }
 
@@ -80,22 +76,22 @@ static unsigned int mips_mt_cpu_irq_startup(unsigned int irq)
  * While we ack the interrupt interrupts are disabled and thus we don't need
  * to deal with concurrency issues.  Same for mips_cpu_irq_end.
  */
-static void mips_mt_cpu_irq_ack(unsigned int irq)
+static void mips_mt_cpu_irq_ack(struct irq_data *d)
 {
 	unsigned int vpflags = dvpe();
-	clear_c0_cause(0x100 << (irq - MIPS_CPU_IRQ_BASE));
+	clear_c0_cause(0x100 << (d->irq - MIPS_CPU_IRQ_BASE));
 	evpe(vpflags);
-	mask_mips_mt_irq(irq);
+	mask_mips_irq(d);
 }
 
 static struct irq_chip mips_mt_cpu_irq_controller = {
 	.name		= "MIPS",
-	.startup	= mips_mt_cpu_irq_startup,
-	.ack		= mips_mt_cpu_irq_ack,
-	.mask		= mask_mips_mt_irq,
-	.mask_ack	= mips_mt_cpu_irq_ack,
-	.unmask		= unmask_mips_mt_irq,
-	.eoi		= unmask_mips_mt_irq,
+	.irq_startup	= mips_mt_cpu_irq_startup,
+	.irq_ack	= mips_mt_cpu_irq_ack,
+	.irq_mask	= mask_mips_irq,
+	.irq_mask_ack	= mips_mt_cpu_irq_ack,
+	.irq_unmask	= unmask_mips_irq,
+	.irq_eoi	= unmask_mips_irq,
 };
 
 void __init mips_cpu_irq_init(void)
@@ -113,10 +109,10 @@ void __init mips_cpu_irq_init(void)
 	 */
 	if (cpu_has_mipsmt)
 		for (i = irq_base; i < irq_base + 2; i++)
-			set_irq_chip_and_handler(i, &mips_mt_cpu_irq_controller,
+			irq_set_chip_and_handler(i, &mips_mt_cpu_irq_controller,
 						 handle_percpu_irq);
 
 	for (i = irq_base + 2; i < irq_base + 8; i++)
-		set_irq_chip_and_handler(i, &mips_cpu_irq_controller,
+		irq_set_chip_and_handler(i, &mips_cpu_irq_controller,
 					 handle_percpu_irq);
 }
diff --git a/arch/mips/kernel/irq_txx9.c b/arch/mips/kernel/irq_txx9.c
index 95a96f69172d..b0c55b50218e 100644
--- a/arch/mips/kernel/irq_txx9.c
+++ b/arch/mips/kernel/irq_txx9.c
@@ -63,9 +63,9 @@ static struct {
 	unsigned char mode;
 } txx9irq[TXx9_MAX_IR] __read_mostly;
 
-static void txx9_irq_unmask(unsigned int irq)
+static void txx9_irq_unmask(struct irq_data *d)
 {
-	unsigned int irq_nr = irq - TXX9_IRQ_BASE;
+	unsigned int irq_nr = d->irq - TXX9_IRQ_BASE;
 	u32 __iomem *ilrp = &txx9_ircptr->ilr[(irq_nr % 16 ) / 2];
 	int ofs = irq_nr / 16 * 16 + (irq_nr & 1) * 8;
 
@@ -79,9 +79,9 @@ static void txx9_irq_unmask(unsigned int irq)
 #endif
 }
 
-static inline void txx9_irq_mask(unsigned int irq)
+static inline void txx9_irq_mask(struct irq_data *d)
 {
-	unsigned int irq_nr = irq - TXX9_IRQ_BASE;
+	unsigned int irq_nr = d->irq - TXX9_IRQ_BASE;
 	u32 __iomem *ilrp = &txx9_ircptr->ilr[(irq_nr % 16) / 2];
 	int ofs = irq_nr / 16 * 16 + (irq_nr & 1) * 8;
 
@@ -99,19 +99,19 @@ static inline void txx9_irq_mask(unsigned int irq)
 #endif
 }
 
-static void txx9_irq_mask_ack(unsigned int irq)
+static void txx9_irq_mask_ack(struct irq_data *d)
 {
-	unsigned int irq_nr = irq - TXX9_IRQ_BASE;
+	unsigned int irq_nr = d->irq - TXX9_IRQ_BASE;
 
-	txx9_irq_mask(irq);
+	txx9_irq_mask(d);
 	/* clear edge detection */
 	if (unlikely(TXx9_IRCR_EDGE(txx9irq[irq_nr].mode)))
 		__raw_writel(TXx9_IRSCR_EIClrE | irq_nr, &txx9_ircptr->scr);
 }
 
-static int txx9_irq_set_type(unsigned int irq, unsigned int flow_type)
+static int txx9_irq_set_type(struct irq_data *d, unsigned int flow_type)
 {
-	unsigned int irq_nr = irq - TXX9_IRQ_BASE;
+	unsigned int irq_nr = d->irq - TXX9_IRQ_BASE;
 	u32 cr;
 	u32 __iomem *crp;
 	int ofs;
@@ -139,11 +139,11 @@ static int txx9_irq_set_type(unsigned int irq, unsigned int flow_type)
 
 static struct irq_chip txx9_irq_chip = {
 	.name		= "TXX9",
-	.ack		= txx9_irq_mask_ack,
-	.mask		= txx9_irq_mask,
-	.mask_ack	= txx9_irq_mask_ack,
-	.unmask		= txx9_irq_unmask,
-	.set_type	= txx9_irq_set_type,
+	.irq_ack	= txx9_irq_mask_ack,
+	.irq_mask	= txx9_irq_mask,
+	.irq_mask_ack	= txx9_irq_mask_ack,
+	.irq_unmask	= txx9_irq_unmask,
+	.irq_set_type	= txx9_irq_set_type,
 };
 
 void __init txx9_irq_init(unsigned long baseaddr)
@@ -154,8 +154,8 @@ void __init txx9_irq_init(unsigned long baseaddr)
 	for (i = 0; i < TXx9_MAX_IR; i++) {
 		txx9irq[i].level = 4; /* middle level */
 		txx9irq[i].mode = TXx9_IRCR_LOW;
-		set_irq_chip_and_handler(TXX9_IRQ_BASE + i,
-					 &txx9_irq_chip, handle_level_irq);
+		irq_set_chip_and_handler(TXX9_IRQ_BASE + i, &txx9_irq_chip,
+					 handle_level_irq);
 	}
 
 	/* mask all IRC interrupts */
diff --git a/arch/mips/kernel/perf_event_mipsxx.c b/arch/mips/kernel/perf_event_mipsxx.c
index d9a7db78ed62..75266ff4cc33 100644
--- a/arch/mips/kernel/perf_event_mipsxx.c
+++ b/arch/mips/kernel/perf_event_mipsxx.c
@@ -721,7 +721,7 @@ static void mipsxx_pmu_start(void)
 
 /*
  * MIPS performance counters can be per-TC. The control registers can
- * not be directly accessed accross CPUs. Hence if we want to do global
+ * not be directly accessed across CPUs. Hence if we want to do global
  * control, we need cross CPU calls. on_each_cpu() can help us, but we
  * can not make sure this function is called with interrupts enabled. So
  * here we pause local counters and then grab a rwlock and leave the
diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c
index ae167df73ddd..d2112d3cf115 100644
--- a/arch/mips/kernel/process.c
+++ b/arch/mips/kernel/process.c
@@ -410,7 +410,7 @@ unsigned long unwind_stack(struct task_struct *task, unsigned long *sp,
 	if (!kallsyms_lookup_size_offset(pc, &size, &ofs))
 		return 0;
 	/*
-	 * Return ra if an exception occured at the first instruction
+	 * Return ra if an exception occurred at the first instruction
 	 */
 	if (unlikely(ofs == 0)) {
 		pc = *ra;
diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S
index fbaabad0e6e2..7f5468b38d4c 100644
--- a/arch/mips/kernel/scall32-o32.S
+++ b/arch/mips/kernel/scall32-o32.S
@@ -586,6 +586,10 @@ einval:	li	v0, -ENOSYS
 	sys	sys_fanotify_init	2
 	sys	sys_fanotify_mark	6
 	sys	sys_prlimit64		4
+	sys	sys_name_to_handle_at	5
+	sys	sys_open_by_handle_at	3	/* 4340 */
+	sys	sys_clock_adjtime	2
+	sys	sys_syncfs		1
 	.endm
 
 	/* We pre-compute the number of _instruction_ bytes needed to
diff --git a/arch/mips/kernel/scall64-64.S b/arch/mips/kernel/scall64-64.S
index 3f4179283207..a2e1fcbc41dc 100644
--- a/arch/mips/kernel/scall64-64.S
+++ b/arch/mips/kernel/scall64-64.S
@@ -425,4 +425,8 @@ sys_call_table:
 	PTR	sys_fanotify_init		/* 5295 */
 	PTR	sys_fanotify_mark
 	PTR	sys_prlimit64
+	PTR	sys_name_to_handle_at
+	PTR	sys_open_by_handle_at
+	PTR	sys_clock_adjtime		/* 5300 */
+	PTR	sys_syncfs
 	.size	sys_call_table,.-sys_call_table
diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S
index f08ece6d8acc..b2c7624995b8 100644
--- a/arch/mips/kernel/scall64-n32.S
+++ b/arch/mips/kernel/scall64-n32.S
@@ -425,4 +425,8 @@ EXPORT(sysn32_call_table)
 	PTR	sys_fanotify_init		/* 6300 */
 	PTR	sys_fanotify_mark
 	PTR	sys_prlimit64
+	PTR	sys_name_to_handle_at
+	PTR	sys_open_by_handle_at
+	PTR	compat_sys_clock_adjtime	/* 6305 */
+	PTR	sys_syncfs
 	.size	sysn32_call_table,.-sysn32_call_table
diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S
index 78d768a3e19d..049a9c8c49a0 100644
--- a/arch/mips/kernel/scall64-o32.S
+++ b/arch/mips/kernel/scall64-o32.S
@@ -543,4 +543,8 @@ sys_call_table:
 	PTR	sys_fanotify_init
 	PTR	sys_32_fanotify_mark
 	PTR	sys_prlimit64
+	PTR	sys_name_to_handle_at
+	PTR	compat_sys_open_by_handle_at	/* 4340 */
+	PTR	compat_sys_clock_adjtime
+	PTR	sys_syncfs
 	.size	sys_call_table,.-sys_call_table
diff --git a/arch/mips/kernel/smp-mt.c b/arch/mips/kernel/smp-mt.c
index c0e81418ba21..1ec56e635d04 100644
--- a/arch/mips/kernel/smp-mt.c
+++ b/arch/mips/kernel/smp-mt.c
@@ -120,7 +120,7 @@ static void vsmp_send_ipi_single(int cpu, unsigned int action)
 
 	local_irq_save(flags);
 
-	vpflags = dvpe();	/* cant access the other CPU's registers whilst MVPE enabled */
+	vpflags = dvpe();	/* can't access the other CPU's registers whilst MVPE enabled */
 
 	switch (action) {
 	case SMP_CALL_FUNCTION:
diff --git a/arch/mips/kernel/smtc.c b/arch/mips/kernel/smtc.c
index 39c08254b0f1..5a88cc4ccd5a 100644
--- a/arch/mips/kernel/smtc.c
+++ b/arch/mips/kernel/smtc.c
@@ -677,8 +677,9 @@ void smtc_set_irq_affinity(unsigned int irq, cpumask_t affinity)
 	 */
 }
 
-void smtc_forward_irq(unsigned int irq)
+void smtc_forward_irq(struct irq_data *d)
 {
+	unsigned int irq = d->irq;
 	int target;
 
 	/*
@@ -692,7 +693,7 @@ void smtc_forward_irq(unsigned int irq)
 	 * and efficiency, we just pick the easiest one to find.
 	 */
 
-	target = cpumask_first(irq_desc[irq].affinity);
+	target = cpumask_first(d->affinity);
 
 	/*
 	 * We depend on the platform code to have correctly processed
@@ -707,12 +708,10 @@ void smtc_forward_irq(unsigned int irq)
 	 */
 
 	/* If no one is eligible, service locally */
-	if (target >= NR_CPUS) {
+	if (target >= NR_CPUS)
 		do_IRQ_no_affinity(irq);
-		return;
-	}
-
-	smtc_send_ipi(target, IRQ_AFFINITY_IPI, irq);
+	else
+		smtc_send_ipi(target, IRQ_AFFINITY_IPI, irq);
 }
 
 #endif /* CONFIG_MIPS_MT_SMTC_IRQAFF */
@@ -1147,7 +1146,7 @@ static void setup_cross_vpe_interrupts(unsigned int nvpe)
 
 	setup_irq_smtc(cpu_ipi_irq, &irq_ipi, (0x100 << MIPS_CPU_IPI_IRQ));
 
-	set_irq_handler(cpu_ipi_irq, handle_percpu_irq);
+	irq_set_handler(cpu_ipi_irq, handle_percpu_irq);
 }
 
 /*
diff --git a/arch/mips/kernel/time.c b/arch/mips/kernel/time.c
index fb7497405510..1083ad4e1017 100644
--- a/arch/mips/kernel/time.c
+++ b/arch/mips/kernel/time.c
@@ -102,7 +102,7 @@ static __init int cpu_has_mfc0_count_bug(void)
 	case CPU_R4400SC:
 	case CPU_R4400MC:
 		/*
-		 * The published errata for the R4400 upto 3.0 say the CPU
+		 * The published errata for the R4400 up to 3.0 say the CPU
 		 * has the mfc0 from count bug.
 		 */
 		if ((current_cpu_data.processor_id & 0xff) <= 0x30)
diff --git a/arch/mips/kernel/vpe.c b/arch/mips/kernel/vpe.c
index ab52b7cf3b6b..dbb6b408f001 100644
--- a/arch/mips/kernel/vpe.c
+++ b/arch/mips/kernel/vpe.c
@@ -19,7 +19,7 @@
  * VPE support module
  *
  * Provides support for loading a MIPS SP program on VPE1.
- * The SP enviroment is rather simple, no tlb's.  It needs to be relocatable
+ * The SP environment is rather simple, no tlb's.  It needs to be relocatable
  * (or partially linked). You should initialise your stack in the startup
  * code. This loader looks for the symbol __start and sets up
  * execution to resume from there. The MIPS SDE kit contains suitable examples.
diff --git a/arch/mips/lasat/interrupt.c b/arch/mips/lasat/interrupt.c
index 1353fb135ed3..de4c165515d7 100644
--- a/arch/mips/lasat/interrupt.c
+++ b/arch/mips/lasat/interrupt.c
@@ -32,24 +32,24 @@ static volatile int *lasat_int_status;
 static volatile int *lasat_int_mask;
 static volatile int lasat_int_mask_shift;
 
-void disable_lasat_irq(unsigned int irq_nr)
+void disable_lasat_irq(struct irq_data *d)
 {
-	irq_nr -= LASAT_IRQ_BASE;
+	unsigned int irq_nr = d->irq - LASAT_IRQ_BASE;
+
 	*lasat_int_mask &= ~(1 << irq_nr) << lasat_int_mask_shift;
 }
 
-void enable_lasat_irq(unsigned int irq_nr)
+void enable_lasat_irq(struct irq_data *d)
 {
-	irq_nr -= LASAT_IRQ_BASE;
+	unsigned int irq_nr = d->irq - LASAT_IRQ_BASE;
+
 	*lasat_int_mask |= (1 << irq_nr) << lasat_int_mask_shift;
 }
 
 static struct irq_chip lasat_irq_type = {
 	.name = "Lasat",
-	.ack = disable_lasat_irq,
-	.mask = disable_lasat_irq,
-	.mask_ack = disable_lasat_irq,
-	.unmask = enable_lasat_irq,
+	.irq_mask = disable_lasat_irq,
+	.irq_unmask = enable_lasat_irq,
 };
 
 static inline int ls1bit32(unsigned int x)
@@ -128,7 +128,7 @@ void __init arch_init_irq(void)
 	mips_cpu_irq_init();
 
 	for (i = LASAT_IRQ_BASE; i <= LASAT_IRQ_END; i++)
-		set_irq_chip_and_handler(i, &lasat_irq_type, handle_level_irq);
+		irq_set_chip_and_handler(i, &lasat_irq_type, handle_level_irq);
 
 	setup_irq(LASAT_CASCADE_IRQ, &cascade);
 }
diff --git a/arch/mips/lib/strnlen_user.S b/arch/mips/lib/strnlen_user.S
index c768e3000616..64457162f7e0 100644
--- a/arch/mips/lib/strnlen_user.S
+++ b/arch/mips/lib/strnlen_user.S
@@ -17,7 +17,7 @@
 	.previous
 
 /*
- * Return the size of a string including the ending NUL character upto a
+ * Return the size of a string including the ending NUL character up to a
  * maximum of a1 or 0 in case of error.
  *
  * Note: for performance reasons we deliberately accept that a user may
diff --git a/arch/mips/loongson/common/bonito-irq.c b/arch/mips/loongson/common/bonito-irq.c
index 2dc2a4cc632a..f27d7ccca92a 100644
--- a/arch/mips/loongson/common/bonito-irq.c
+++ b/arch/mips/loongson/common/bonito-irq.c
@@ -16,24 +16,22 @@
 
 #include <loongson.h>
 
-static inline void bonito_irq_enable(unsigned int irq)
+static inline void bonito_irq_enable(struct irq_data *d)
 {
-	LOONGSON_INTENSET = (1 << (irq - LOONGSON_IRQ_BASE));
+	LOONGSON_INTENSET = (1 << (d->irq - LOONGSON_IRQ_BASE));
 	mmiowb();
 }
 
-static inline void bonito_irq_disable(unsigned int irq)
+static inline void bonito_irq_disable(struct irq_data *d)
 {
-	LOONGSON_INTENCLR = (1 << (irq - LOONGSON_IRQ_BASE));
+	LOONGSON_INTENCLR = (1 << (d->irq - LOONGSON_IRQ_BASE));
 	mmiowb();
 }
 
 static struct irq_chip bonito_irq_type = {
-	.name	= "bonito_irq",
-	.ack	= bonito_irq_disable,
-	.mask	= bonito_irq_disable,
-	.mask_ack = bonito_irq_disable,
-	.unmask	= bonito_irq_enable,
+	.name		= "bonito_irq",
+	.irq_mask	= bonito_irq_disable,
+	.irq_unmask	= bonito_irq_enable,
 };
 
 static struct irqaction __maybe_unused dma_timeout_irqaction = {
@@ -46,7 +44,8 @@ void bonito_irq_init(void)
 	u32 i;
 
 	for (i = LOONGSON_IRQ_BASE; i < LOONGSON_IRQ_BASE + 32; i++)
-		set_irq_chip_and_handler(i, &bonito_irq_type, handle_level_irq);
+		irq_set_chip_and_handler(i, &bonito_irq_type,
+					 handle_level_irq);
 
 #ifdef CONFIG_CPU_LOONGSON2E
 	setup_irq(LOONGSON_IRQ_BASE + 10, &dma_timeout_irqaction);
diff --git a/arch/mips/math-emu/dp_fsp.c b/arch/mips/math-emu/dp_fsp.c
index 1dfbd92ba9d0..daed6834dc15 100644
--- a/arch/mips/math-emu/dp_fsp.c
+++ b/arch/mips/math-emu/dp_fsp.c
@@ -62,7 +62,7 @@ ieee754dp ieee754dp_fsp(ieee754sp x)
 		break;
 	}
 
-	/* CANT possibly overflow,underflow, or need rounding
+	/* CAN'T possibly overflow,underflow, or need rounding
 	 */
 
 	/* drop the hidden bit */
diff --git a/arch/mips/math-emu/dp_mul.c b/arch/mips/math-emu/dp_mul.c
index aa566e785f5a..09175f461920 100644
--- a/arch/mips/math-emu/dp_mul.c
+++ b/arch/mips/math-emu/dp_mul.c
@@ -104,7 +104,7 @@ ieee754dp ieee754dp_mul(ieee754dp x, ieee754dp y)
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_NORM):
 		break;
 	}
-	/* rm = xm * ym, re = xe+ye basicly */
+	/* rm = xm * ym, re = xe+ye basically */
 	assert(xm & DP_HIDDEN_BIT);
 	assert(ym & DP_HIDDEN_BIT);
 	{
diff --git a/arch/mips/math-emu/dsemul.c b/arch/mips/math-emu/dsemul.c
index 36d975ae08f8..3c4a8c5ba7f2 100644
--- a/arch/mips/math-emu/dsemul.c
+++ b/arch/mips/math-emu/dsemul.c
@@ -32,7 +32,7 @@
  * not change cp0_epc due to the instruction
  *
  * According to the spec:
- * 1) it shouldnt be a branch :-)
+ * 1) it shouldn't be a branch :-)
  * 2) it can be a COP instruction :-(
  * 3) if we are tring to run a protected memory space we must take
  *    special care on memory access instructions :-(
diff --git a/arch/mips/math-emu/sp_mul.c b/arch/mips/math-emu/sp_mul.c
index c06bb4022be5..2722a2570ea4 100644
--- a/arch/mips/math-emu/sp_mul.c
+++ b/arch/mips/math-emu/sp_mul.c
@@ -104,7 +104,7 @@ ieee754sp ieee754sp_mul(ieee754sp x, ieee754sp y)
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_NORM):
 		break;
 	}
-	/* rm = xm * ym, re = xe+ye basicly */
+	/* rm = xm * ym, re = xe+ye basically */
 	assert(xm & SP_HIDDEN_BIT);
 	assert(ym & SP_HIDDEN_BIT);
 
diff --git a/arch/mips/mipssim/sim_smtc.c b/arch/mips/mipssim/sim_smtc.c
index 5da30b6a65b7..30df47258c2c 100644
--- a/arch/mips/mipssim/sim_smtc.c
+++ b/arch/mips/mipssim/sim_smtc.c
@@ -27,6 +27,7 @@
 #include <asm/atomic.h>
 #include <asm/cpu.h>
 #include <asm/processor.h>
+#include <asm/smtc.h>
 #include <asm/system.h>
 #include <asm/mmu_context.h>
 #include <asm/smtc_ipi.h>
@@ -57,8 +58,6 @@ static inline void ssmtc_send_ipi_mask(const struct cpumask *mask,
  */
 static void __cpuinit ssmtc_init_secondary(void)
 {
-	void smtc_init_secondary(void);
-
 	smtc_init_secondary();
 }
 
diff --git a/arch/mips/mm/cex-sb1.S b/arch/mips/mm/cex-sb1.S
index 2d08268bb705..89c412bc4b64 100644
--- a/arch/mips/mm/cex-sb1.S
+++ b/arch/mips/mm/cex-sb1.S
@@ -79,7 +79,7 @@ LEAF(except_vec2_sb1)
 recovered_dcache:
 	/*
 	 * Unlock CacheErr-D (which in turn unlocks CacheErr-DPA).
-	 * Ought to log the occurence of this recovered dcache error.
+	 * Ought to log the occurrence of this recovered dcache error.
 	 */
 	b	recovered
 	 mtc0	$0,C0_CERR_D
diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c
index 04f9e17db9d0..5ef294fbb6e7 100644
--- a/arch/mips/mm/tlbex.c
+++ b/arch/mips/mm/tlbex.c
@@ -352,7 +352,7 @@ static void __cpuinit __maybe_unused build_tlb_probe_entry(u32 **p)
 
 /*
  * Write random or indexed TLB entry, and care about the hazards from
- * the preceeding mtc0 and for the following eret.
+ * the preceding mtc0 and for the following eret.
  */
 enum tlb_write_entry { tlb_random, tlb_indexed };
 
diff --git a/arch/mips/mti-malta/malta-int.c b/arch/mips/mti-malta/malta-int.c
index b79b24afe3a2..9027061f0ead 100644
--- a/arch/mips/mti-malta/malta-int.c
+++ b/arch/mips/mti-malta/malta-int.c
@@ -472,7 +472,7 @@ static void __init fill_ipi_map(void)
 void __init arch_init_ipiirq(int irq, struct irqaction *action)
 {
 	setup_irq(irq, action);
-	set_irq_handler(irq, handle_percpu_irq);
+	irq_set_handler(irq, handle_percpu_irq);
 }
 
 void __init arch_init_irq(void)
diff --git a/arch/mips/mti-malta/malta-smtc.c b/arch/mips/mti-malta/malta-smtc.c
index 192cfd2a539c..49a38b09a488 100644
--- a/arch/mips/mti-malta/malta-smtc.c
+++ b/arch/mips/mti-malta/malta-smtc.c
@@ -34,7 +34,6 @@ static void msmtc_send_ipi_mask(const struct cpumask *mask, unsigned int action)
  */
 static void __cpuinit msmtc_init_secondary(void)
 {
-	void smtc_init_secondary(void);
 	int myvpe;
 
 	/* Don't enable Malta I/O interrupts (IP2) for secondary VPEs */
@@ -114,7 +113,8 @@ struct plat_smp_ops msmtc_smp_ops = {
  */
 
 
-int plat_set_irq_affinity(unsigned int irq, const struct cpumask *affinity)
+int plat_set_irq_affinity(struct irq_data *d, const struct cpumask *affinity,
+			  bool force)
 {
 	cpumask_t tmask;
 	int cpu = 0;
@@ -130,7 +130,7 @@ int plat_set_irq_affinity(unsigned int irq, const struct cpumask *affinity)
 	 * cleared in the affinity mask, there will never be any
 	 * interrupt forwarding.  But as soon as a program or operator
 	 * sets affinity for one of the related IRQs, we need to make
-	 * sure that we don't ever try to forward across the VPE boundry,
+	 * sure that we don't ever try to forward across the VPE boundary,
 	 * at least not until we engineer a system where the interrupt
 	 * _ack() or _end() function can somehow know that it corresponds
 	 * to an interrupt taken on another VPE, and perform the appropriate
@@ -144,7 +144,7 @@ int plat_set_irq_affinity(unsigned int irq, const struct cpumask *affinity)
 		if ((cpu_data[cpu].vpe_id != 0) || !cpu_online(cpu))
 			cpu_clear(cpu, tmask);
 	}
-	cpumask_copy(irq_desc[irq].affinity, &tmask);
+	cpumask_copy(d->affinity, &tmask);
 
 	if (cpus_empty(tmask))
 		/*
@@ -155,8 +155,8 @@ int plat_set_irq_affinity(unsigned int irq, const struct cpumask *affinity)
 			"IRQ affinity leaves no legal CPU for IRQ %d\n", irq);
 
 	/* Do any generic SMTC IRQ affinity setup */
-	smtc_set_irq_affinity(irq, tmask);
+	smtc_set_irq_affinity(d->irq, tmask);
 
-	return 0;
+	return IRQ_SET_MASK_OK_NOCOPY;
 }
 #endif /* CONFIG_MIPS_MT_SMTC_IRQAFF */
diff --git a/arch/mips/mti-malta/malta-time.c b/arch/mips/mti-malta/malta-time.c
index 3c6f190aa61c..1620b83cd13e 100644
--- a/arch/mips/mti-malta/malta-time.c
+++ b/arch/mips/mti-malta/malta-time.c
@@ -119,7 +119,7 @@ static void __init plat_perf_setup(void)
 			set_vi_handler(cp0_perfcount_irq, mips_perf_dispatch);
 		mips_cpu_perf_irq = MIPS_CPU_IRQ_BASE + cp0_perfcount_irq;
 #ifdef CONFIG_SMP
-		set_irq_handler(mips_cpu_perf_irq, handle_percpu_irq);
+		irq_set_handler(mips_cpu_perf_irq, handle_percpu_irq);
 #endif
 	}
 }
diff --git a/arch/mips/pci/msi-octeon.c b/arch/mips/pci/msi-octeon.c
index d8080499872a..5d530f89d872 100644
--- a/arch/mips/pci/msi-octeon.c
+++ b/arch/mips/pci/msi-octeon.c
@@ -172,7 +172,7 @@ msi_irq_allocated:
 	pci_write_config_word(dev, desc->msi_attrib.pos + PCI_MSI_FLAGS,
 			      control);
 
-	set_irq_msi(irq, desc);
+	irq_set_msi_desc(irq, desc);
 	write_msi_msg(irq, &msg);
 	return 0;
 }
@@ -259,11 +259,11 @@ static DEFINE_RAW_SPINLOCK(octeon_irq_msi_lock);
 static u64 msi_rcv_reg[4];
 static u64 mis_ena_reg[4];
 
-static void octeon_irq_msi_enable_pcie(unsigned int irq)
+static void octeon_irq_msi_enable_pcie(struct irq_data *data)
 {
 	u64 en;
 	unsigned long flags;
-	int msi_number = irq - OCTEON_IRQ_MSI_BIT0;
+	int msi_number = data->irq - OCTEON_IRQ_MSI_BIT0;
 	int irq_index = msi_number >> 6;
 	int irq_bit = msi_number & 0x3f;
 
@@ -275,11 +275,11 @@ static void octeon_irq_msi_enable_pcie(unsigned int irq)
 	raw_spin_unlock_irqrestore(&octeon_irq_msi_lock, flags);
 }
 
-static void octeon_irq_msi_disable_pcie(unsigned int irq)
+static void octeon_irq_msi_disable_pcie(struct irq_data *data)
 {
 	u64 en;
 	unsigned long flags;
-	int msi_number = irq - OCTEON_IRQ_MSI_BIT0;
+	int msi_number = data->irq - OCTEON_IRQ_MSI_BIT0;
 	int irq_index = msi_number >> 6;
 	int irq_bit = msi_number & 0x3f;
 
@@ -293,11 +293,11 @@ static void octeon_irq_msi_disable_pcie(unsigned int irq)
 
 static struct irq_chip octeon_irq_chip_msi_pcie = {
 	.name = "MSI",
-	.enable = octeon_irq_msi_enable_pcie,
-	.disable = octeon_irq_msi_disable_pcie,
+	.irq_enable = octeon_irq_msi_enable_pcie,
+	.irq_disable = octeon_irq_msi_disable_pcie,
 };
 
-static void octeon_irq_msi_enable_pci(unsigned int irq)
+static void octeon_irq_msi_enable_pci(struct irq_data *data)
 {
 	/*
 	 * Octeon PCI doesn't have the ability to mask/unmask MSI
@@ -308,15 +308,15 @@ static void octeon_irq_msi_enable_pci(unsigned int irq)
 	 */
 }
 
-static void octeon_irq_msi_disable_pci(unsigned int irq)
+static void octeon_irq_msi_disable_pci(struct irq_data *data)
 {
 	/* See comment in enable */
 }
 
 static struct irq_chip octeon_irq_chip_msi_pci = {
 	.name = "MSI",
-	.enable = octeon_irq_msi_enable_pci,
-	.disable = octeon_irq_msi_disable_pci,
+	.irq_enable = octeon_irq_msi_enable_pci,
+	.irq_disable = octeon_irq_msi_disable_pci,
 };
 
 /*
@@ -388,7 +388,7 @@ int __init octeon_msi_initialize(void)
 	}
 
 	for (irq = OCTEON_IRQ_MSI_BIT0; irq <= OCTEON_IRQ_MSI_LAST; irq++)
-		set_irq_chip_and_handler(irq, msi, handle_simple_irq);
+		irq_set_chip_and_handler(irq, msi, handle_simple_irq);
 
 	if (octeon_has_feature(OCTEON_FEATURE_PCIE)) {
 		if (request_irq(OCTEON_IRQ_PCI_MSI0, octeon_msi_interrupt0,
diff --git a/arch/mips/pci/ops-pmcmsp.c b/arch/mips/pci/ops-pmcmsp.c
index 68798f869c0f..8fbfbf2b931c 100644
--- a/arch/mips/pci/ops-pmcmsp.c
+++ b/arch/mips/pci/ops-pmcmsp.c
@@ -344,7 +344,7 @@ static irqreturn_t bpci_interrupt(int irq, void *dev_id)
  *                              PCI_ACCESS_WRITE and PCI_ACCESS_READ.
  *
  *               bus          - pointer to the bus number of the device to
- *                              be targetted for the configuration cycle.
+ *                              be targeted for the configuration cycle.
  *                              The only element of the pci_bus structure
  *                              used is bus->number. This argument determines
  *                              if the configuration access will be Type 0 or
@@ -354,7 +354,7 @@ static irqreturn_t bpci_interrupt(int irq, void *dev_id)
  *
  *               devfn        - this is an 8-bit field. The lower three bits
  *                              specify the function number of the device to
- *                              be targetted for the configuration cycle, with
+ *                              be targeted for the configuration cycle, with
  *                              all three-bit combinations being legal. The
  *                              upper five bits specify the device number,
  *                              with legal values being 10 to 31.
diff --git a/arch/mips/pci/pci-bcm1480.c b/arch/mips/pci/pci-bcm1480.c
index 6f5e24c6ae67..af8c31996965 100644
--- a/arch/mips/pci/pci-bcm1480.c
+++ b/arch/mips/pci/pci-bcm1480.c
@@ -210,7 +210,7 @@ static int __init bcm1480_pcibios_init(void)
 	PCIBIOS_MIN_IO = 0x00008000UL;
 	PCIBIOS_MIN_MEM = 0x01000000UL;
 
-	/* Set I/O resource limits. - unlimited for now to accomodate HT */
+	/* Set I/O resource limits. - unlimited for now to accommodate HT */
 	ioport_resource.end = 0xffffffffUL;
 	iomem_resource.end = 0xffffffffUL;
 
diff --git a/arch/mips/pci/pci-octeon.c b/arch/mips/pci/pci-octeon.c
index 2d74fc9ae3ba..ed1c54284b8f 100644
--- a/arch/mips/pci/pci-octeon.c
+++ b/arch/mips/pci/pci-octeon.c
@@ -441,7 +441,7 @@ static void octeon_pci_initialize(void)
 
 	/*
 	 * TDOMC must be set to one in PCI mode. TDOMC should be set to 4
-	 * in PCI-X mode to allow four oustanding splits. Otherwise,
+	 * in PCI-X mode to allow four outstanding splits. Otherwise,
 	 * should not change from its reset value. Don't write PCI_CFG19
 	 * in PCI mode (0x82000001 reset value), write it to 0x82000004
 	 * after PCI-X mode is known. MRBCI,MDWE,MDRE -> must be zero.
@@ -515,7 +515,7 @@ static void octeon_pci_initialize(void)
 #endif	/* USE_OCTEON_INTERNAL_ARBITER */
 
 	/*
-	 * Preferrably written to 1 to set MLTD. [RDSATI,TRTAE,
+	 * Preferably written to 1 to set MLTD. [RDSATI,TRTAE,
 	 * TWTAE,TMAE,DPPMR -> must be zero. TILT -> must not be set to
 	 * 1..7.
 	 */
diff --git a/arch/mips/pci/pci.c b/arch/mips/pci/pci.c
index 38bc28005b4a..33bba7bff258 100644
--- a/arch/mips/pci/pci.c
+++ b/arch/mips/pci/pci.c
@@ -125,7 +125,7 @@ void __devinit register_pci_controller(struct pci_controller *hose)
 	hose_tail = &hose->next;
 
 	/*
-	 * Do not panic here but later - this might hapen before console init.
+	 * Do not panic here but later - this might happen before console init.
 	 */
 	if (!hose->io_map_base) {
 		printk(KERN_WARNING
diff --git a/arch/mips/pmc-sierra/Kconfig b/arch/mips/pmc-sierra/Kconfig
index 8d798497c614..bbd76082fa8c 100644
--- a/arch/mips/pmc-sierra/Kconfig
+++ b/arch/mips/pmc-sierra/Kconfig
@@ -23,6 +23,8 @@ config PMC_MSP7120_GW
 	select SYS_SUPPORTS_MULTITHREADING
 	select IRQ_MSP_CIC
 	select HW_HAS_PCI
+	select MSP_HAS_USB
+	select MSP_ETH
 
 config PMC_MSP7120_FPGA
 	bool "PMC-Sierra MSP7120 FPGA"
@@ -35,3 +37,16 @@ endchoice
 config HYPERTRANSPORT
 	bool "Hypertransport Support for PMC-Sierra Yosemite"
 	depends on PMC_YOSEMITE
+
+config MSP_HAS_USB
+	boolean
+	depends on PMC_MSP
+
+config MSP_ETH
+	boolean
+	select MSP_HAS_MAC
+	depends on PMC_MSP
+
+config MSP_HAS_MAC
+	boolean
+	depends on PMC_MSP
diff --git a/arch/mips/pmc-sierra/msp71xx/Makefile b/arch/mips/pmc-sierra/msp71xx/Makefile
index e107f79b1491..cefba7733b73 100644
--- a/arch/mips/pmc-sierra/msp71xx/Makefile
+++ b/arch/mips/pmc-sierra/msp71xx/Makefile
@@ -6,7 +6,9 @@ obj-y += msp_prom.o msp_setup.o msp_irq.o \
 obj-$(CONFIG_HAVE_GPIO_LIB) += gpio.o gpio_extended.o
 obj-$(CONFIG_PMC_MSP7120_GW) += msp_hwbutton.o
 obj-$(CONFIG_IRQ_MSP_SLP) += msp_irq_slp.o
-obj-$(CONFIG_IRQ_MSP_CIC) += msp_irq_cic.o
+obj-$(CONFIG_IRQ_MSP_CIC) += msp_irq_cic.o msp_irq_per.o
 obj-$(CONFIG_PCI) += msp_pci.o
-obj-$(CONFIG_MSPETH) += msp_eth.o
-obj-$(CONFIG_USB_MSP71XX) += msp_usb.o
+obj-$(CONFIG_MSP_HAS_MAC) += msp_eth.o
+obj-$(CONFIG_MSP_HAS_USB) += msp_usb.o
+obj-$(CONFIG_MIPS_MT_SMP) += msp_smp.o
+obj-$(CONFIG_MIPS_MT_SMTC) += msp_smtc.o
diff --git a/arch/mips/pmc-sierra/msp71xx/msp_eth.c b/arch/mips/pmc-sierra/msp71xx/msp_eth.c
new file mode 100644
index 000000000000..c584df393de2
--- /dev/null
+++ b/arch/mips/pmc-sierra/msp71xx/msp_eth.c
@@ -0,0 +1,187 @@
+/*
+ * The setup file for ethernet related hardware on PMC-Sierra MSP processors.
+ *
+ * Copyright 2010 PMC-Sierra, Inc.
+ *
+ *  This program is free software; you can redistribute  it and/or modify it
+ *  under  the terms of  the GNU General  Public License as published by the
+ *  Free Software Foundation;  either version 2 of the  License, or (at your
+ *  option) any later version.
+ *
+ *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
+ *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
+ *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
+ *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
+ *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
+ *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
+ *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *  You should have received a copy of the  GNU General Public License along
+ *  with this program; if not, write  to the Free Software Foundation, Inc.,
+ *  675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/ioport.h>
+#include <linux/platform_device.h>
+#include <linux/delay.h>
+#include <msp_regs.h>
+#include <msp_int.h>
+#include <msp_gpio_macros.h>
+
+
+#define MSP_ETHERNET_GPIO0	14
+#define MSP_ETHERNET_GPIO1	15
+#define MSP_ETHERNET_GPIO2	16
+
+#ifdef CONFIG_MSP_HAS_TSMAC
+#define MSP_TSMAC_SIZE	0x10020
+#define MSP_TSMAC_ID	"pmc_tsmac"
+
+static struct resource msp_tsmac0_resources[] = {
+	[0] = {
+		.start	= MSP_MAC0_BASE,
+		.end	= MSP_MAC0_BASE + MSP_TSMAC_SIZE - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= MSP_INT_MAC0,
+		.end	= MSP_INT_MAC0,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct resource msp_tsmac1_resources[] = {
+	[0] = {
+		.start	= MSP_MAC1_BASE,
+		.end	= MSP_MAC1_BASE + MSP_TSMAC_SIZE - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= MSP_INT_MAC1,
+		.end	= MSP_INT_MAC1,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+static struct resource msp_tsmac2_resources[] = {
+	[0] = {
+		.start	= MSP_MAC2_BASE,
+		.end	= MSP_MAC2_BASE + MSP_TSMAC_SIZE - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= MSP_INT_SAR,
+		.end	= MSP_INT_SAR,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+
+static struct platform_device tsmac_device[] = {
+	[0] = {
+		.name	= MSP_TSMAC_ID,
+		.id	= 0,
+		.num_resources = ARRAY_SIZE(msp_tsmac0_resources),
+		.resource = msp_tsmac0_resources,
+	},
+	[1] = {
+		.name	= MSP_TSMAC_ID,
+		.id	= 1,
+		.num_resources = ARRAY_SIZE(msp_tsmac1_resources),
+		.resource = msp_tsmac1_resources,
+	},
+	[2] = {
+		.name	= MSP_TSMAC_ID,
+		.id	= 2,
+		.num_resources = ARRAY_SIZE(msp_tsmac2_resources),
+		.resource = msp_tsmac2_resources,
+	},
+};
+#define msp_eth_devs	tsmac_device
+
+#else
+/* If it is not TSMAC assume MSP_ETH (100Mbps) */
+#define MSP_ETH_ID	"pmc_mspeth"
+#define MSP_ETH_SIZE	0xE0
+static struct resource msp_eth0_resources[] = {
+	[0] = {
+		.start	= MSP_MAC0_BASE,
+		.end	= MSP_MAC0_BASE + MSP_ETH_SIZE - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= MSP_INT_MAC0,
+		.end	= MSP_INT_MAC0,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct resource msp_eth1_resources[] = {
+	[0] = {
+		.start	= MSP_MAC1_BASE,
+		.end	= MSP_MAC1_BASE + MSP_ETH_SIZE - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= MSP_INT_MAC1,
+		.end	= MSP_INT_MAC1,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+
+
+static struct platform_device mspeth_device[] = {
+	[0] = {
+		.name	= MSP_ETH_ID,
+		.id	= 0,
+		.num_resources = ARRAY_SIZE(msp_eth0_resources),
+		.resource = msp_eth0_resources,
+	},
+	[1] = {
+		.name	= MSP_ETH_ID,
+		.id	= 1,
+		.num_resources = ARRAY_SIZE(msp_eth1_resources),
+		.resource = msp_eth1_resources,
+	},
+
+};
+#define msp_eth_devs	mspeth_device
+
+#endif
+int __init msp_eth_setup(void)
+{
+	int i, ret = 0;
+
+	/* Configure the GPIO and take the ethernet PHY out of reset */
+	msp_gpio_pin_mode(MSP_GPIO_OUTPUT, MSP_ETHERNET_GPIO0);
+	msp_gpio_pin_hi(MSP_ETHERNET_GPIO0);
+
+#ifdef CONFIG_MSP_HAS_TSMAC
+	/* 3 phys on boards with TSMAC */
+	msp_gpio_pin_mode(MSP_GPIO_OUTPUT, MSP_ETHERNET_GPIO1);
+	msp_gpio_pin_hi(MSP_ETHERNET_GPIO1);
+
+	msp_gpio_pin_mode(MSP_GPIO_OUTPUT, MSP_ETHERNET_GPIO2);
+	msp_gpio_pin_hi(MSP_ETHERNET_GPIO2);
+#endif
+	for (i = 0; i < ARRAY_SIZE(msp_eth_devs); i++) {
+		ret = platform_device_register(&msp_eth_devs[i]);
+		printk(KERN_INFO "device: %d, return value = %d\n", i, ret);
+		if (ret) {
+			platform_device_unregister(&msp_eth_devs[i]);
+			break;
+		}
+	}
+
+	if (ret)
+		printk(KERN_WARNING "Could not initialize "
+						"MSPETH device structures.\n");
+
+	return ret;
+}
+subsys_initcall(msp_eth_setup);
diff --git a/arch/mips/pmc-sierra/msp71xx/msp_irq.c b/arch/mips/pmc-sierra/msp71xx/msp_irq.c
index 734d598a2e3a..4531c4a514bc 100644
--- a/arch/mips/pmc-sierra/msp71xx/msp_irq.c
+++ b/arch/mips/pmc-sierra/msp71xx/msp_irq.c
@@ -19,8 +19,6 @@
 
 #include <msp_int.h>
 
-extern void msp_int_handle(void);
-
 /* SLP bases systems */
 extern void msp_slp_irq_init(void);
 extern void msp_slp_irq_dispatch(void);
@@ -29,6 +27,18 @@ extern void msp_slp_irq_dispatch(void);
 extern void msp_cic_irq_init(void);
 extern void msp_cic_irq_dispatch(void);
 
+/* VSMP support init */
+extern void msp_vsmp_int_init(void);
+
+/* vectored interrupt implementation */
+
+/* SW0/1 interrupts are used for SMP/SMTC */
+static inline void mac0_int_dispatch(void) { do_IRQ(MSP_INT_MAC0); }
+static inline void mac1_int_dispatch(void) { do_IRQ(MSP_INT_MAC1); }
+static inline void mac2_int_dispatch(void) { do_IRQ(MSP_INT_SAR); }
+static inline void usb_int_dispatch(void)  { do_IRQ(MSP_INT_USB);  }
+static inline void sec_int_dispatch(void)  { do_IRQ(MSP_INT_SEC);  }
+
 /*
  * The PMC-Sierra MSP interrupts are arranged in a 3 level cascaded
  * hierarchical system.  The first level are the direct MIPS interrupts
@@ -96,29 +106,57 @@ asmlinkage void plat_irq_dispatch(struct pt_regs *regs)
 		do_IRQ(MSP_INT_SW1);
 }
 
-static struct irqaction cascade_msp = {
+static struct irqaction cic_cascade_msp = {
 	.handler = no_action,
-	.name	 = "MSP cascade"
+	.name	 = "MSP CIC cascade"
 };
 
+static struct irqaction per_cascade_msp = {
+	.handler = no_action,
+	.name	 = "MSP PER cascade"
+};
 
 void __init arch_init_irq(void)
 {
+	/* assume we'll be using vectored interrupt mode except in UP mode*/
+#ifdef CONFIG_MIPS_MT
+	BUG_ON(!cpu_has_vint);
+#endif
 	/* initialize the 1st-level CPU based interrupt controller */
 	mips_cpu_irq_init();
 
 #ifdef CONFIG_IRQ_MSP_CIC
 	msp_cic_irq_init();
-
+#ifdef CONFIG_MIPS_MT
+	set_vi_handler(MSP_INT_CIC, msp_cic_irq_dispatch);
+	set_vi_handler(MSP_INT_MAC0, mac0_int_dispatch);
+	set_vi_handler(MSP_INT_MAC1, mac1_int_dispatch);
+	set_vi_handler(MSP_INT_SAR, mac2_int_dispatch);
+	set_vi_handler(MSP_INT_USB, usb_int_dispatch);
+	set_vi_handler(MSP_INT_SEC, sec_int_dispatch);
+#ifdef CONFIG_MIPS_MT_SMP
+	msp_vsmp_int_init();
+#elif defined CONFIG_MIPS_MT_SMTC
+	/*Set hwmask for all platform devices */
+	irq_hwmask[MSP_INT_MAC0] = C_IRQ0;
+	irq_hwmask[MSP_INT_MAC1] = C_IRQ1;
+	irq_hwmask[MSP_INT_USB] = C_IRQ2;
+	irq_hwmask[MSP_INT_SAR] = C_IRQ3;
+	irq_hwmask[MSP_INT_SEC] = C_IRQ5;
+
+#endif	/* CONFIG_MIPS_MT_SMP */
+#endif	/* CONFIG_MIPS_MT */
 	/* setup the cascaded interrupts */
-	setup_irq(MSP_INT_CIC, &cascade_msp);
-	setup_irq(MSP_INT_PER, &cascade_msp);
+	setup_irq(MSP_INT_CIC, &cic_cascade_msp);
+	setup_irq(MSP_INT_PER, &per_cascade_msp);
+
 #else
 	/* setup the 2nd-level SLP register based interrupt controller */
+	/* VSMP /SMTC support support is not enabled for SLP */
 	msp_slp_irq_init();
 
 	/* setup the cascaded SLP/PER interrupts */
-	setup_irq(MSP_INT_SLP, &cascade_msp);
-	setup_irq(MSP_INT_PER, &cascade_msp);
+	setup_irq(MSP_INT_SLP, &cic_cascade_msp);
+	setup_irq(MSP_INT_PER, &per_cascade_msp);
 #endif
 }
diff --git a/arch/mips/pmc-sierra/msp71xx/msp_irq_cic.c b/arch/mips/pmc-sierra/msp71xx/msp_irq_cic.c
index 07e71ff2433f..c4fa2d775d8b 100644
--- a/arch/mips/pmc-sierra/msp71xx/msp_irq_cic.c
+++ b/arch/mips/pmc-sierra/msp71xx/msp_irq_cic.c
@@ -1,8 +1,7 @@
 /*
- * This file define the irq handler for MSP SLM subsystem interrupts.
+ * Copyright 2010 PMC-Sierra, Inc, derived from irq_cpu.c
  *
- * Copyright 2005-2007 PMC-Sierra, Inc, derived from irq_cpu.c
- * Author: Andrew Hughes, Andrew_Hughes@pmc-sierra.com
+ * This file define the irq handler for MSP CIC subsystem interrupts.
  *
  * This program is free software; you can redistribute  it and/or modify it
  * under  the terms of  the GNU General  Public License as published by the
@@ -16,119 +15,203 @@
 #include <linux/bitops.h>
 #include <linux/irq.h>
 
+#include <asm/mipsregs.h>
 #include <asm/system.h>
 
 #include <msp_cic_int.h>
 #include <msp_regs.h>
 
 /*
- * NOTE: We are only enabling support for VPE0 right now.
+ * External API
  */
+extern void msp_per_irq_init(void);
+extern void msp_per_irq_dispatch(void);
 
-static inline void unmask_msp_cic_irq(unsigned int irq)
+
+/*
+ * Convenience Macro.  Should be somewhere generic.
+ */
+#define get_current_vpe()   \
+	((read_c0_tcbind() >> TCBIND_CURVPE_SHIFT) & TCBIND_CURVPE)
+
+#ifdef CONFIG_SMP
+
+#define LOCK_VPE(flags, mtflags) \
+do {				\
+	local_irq_save(flags);	\
+	mtflags = dmt();	\
+} while (0)
+
+#define UNLOCK_VPE(flags, mtflags) \
+do {				\
+	emt(mtflags);		\
+	local_irq_restore(flags);\
+} while (0)
+
+#define LOCK_CORE(flags, mtflags) \
+do {				\
+	local_irq_save(flags);	\
+	mtflags = dvpe();	\
+} while (0)
+
+#define UNLOCK_CORE(flags, mtflags)		\
+do {				\
+	evpe(mtflags);		\
+	local_irq_restore(flags);\
+} while (0)
+
+#else
+
+#define LOCK_VPE(flags, mtflags)
+#define UNLOCK_VPE(flags, mtflags)
+#endif
+
+/* ensure writes to cic are completed */
+static inline void cic_wmb(void)
 {
+	const volatile void __iomem *cic_mem = CIC_VPE0_MSK_REG;
+	volatile u32 dummy_read;
 
-	/* check for PER interrupt range */
-	if (irq < MSP_PER_INTBASE)
-		*CIC_VPE0_MSK_REG |= (1 << (irq - MSP_CIC_INTBASE));
-	else
-		*PER_INT_MSK_REG |= (1 << (irq - MSP_PER_INTBASE));
+	wmb();
+	dummy_read = __raw_readl(cic_mem);
+	dummy_read++;
 }
 
-static inline void mask_msp_cic_irq(unsigned int irq)
+static void unmask_cic_irq(struct irq_data *d)
 {
-	/* check for PER interrupt range */
-	if (irq < MSP_PER_INTBASE)
-		*CIC_VPE0_MSK_REG &= ~(1 << (irq - MSP_CIC_INTBASE));
-	else
-		*PER_INT_MSK_REG &= ~(1 << (irq - MSP_PER_INTBASE));
+	volatile u32   *cic_msk_reg = CIC_VPE0_MSK_REG;
+	int vpe;
+#ifdef CONFIG_SMP
+	unsigned int mtflags;
+	unsigned long  flags;
+
+	/*
+	* Make sure we have IRQ affinity.  It may have changed while
+	* we were processing the IRQ.
+	*/
+	if (!cpumask_test_cpu(smp_processor_id(), d->affinity))
+		return;
+#endif
+
+	vpe = get_current_vpe();
+	LOCK_VPE(flags, mtflags);
+	cic_msk_reg[vpe] |= (1 << (d->irq - MSP_CIC_INTBASE));
+	UNLOCK_VPE(flags, mtflags);
+	cic_wmb();
 }
 
-/*
- * While we ack the interrupt interrupts are disabled and thus we don't need
- * to deal with concurrency issues.  Same for msp_cic_irq_end.
- */
-static inline void ack_msp_cic_irq(unsigned int irq)
+static void mask_cic_irq(struct irq_data *d)
 {
-	mask_msp_cic_irq(irq);
-
+	volatile u32 *cic_msk_reg = CIC_VPE0_MSK_REG;
+	int	vpe = get_current_vpe();
+#ifdef CONFIG_SMP
+	unsigned long flags, mtflags;
+#endif
+	LOCK_VPE(flags, mtflags);
+	cic_msk_reg[vpe] &= ~(1 << (d->irq - MSP_CIC_INTBASE));
+	UNLOCK_VPE(flags, mtflags);
+	cic_wmb();
+}
+static void msp_cic_irq_ack(struct irq_data *d)
+{
+	mask_cic_irq(d);
 	/*
-	 * only really necessary for 18, 16-14 and sometimes 3:0 (since
-	 * these can be edge sensitive) but it doesn't hurt for the others.
-	 */
-
-	/* check for PER interrupt range */
-	if (irq < MSP_PER_INTBASE)
-		*CIC_STS_REG = (1 << (irq - MSP_CIC_INTBASE));
-	else
-		*PER_INT_STS_REG = (1 << (irq - MSP_PER_INTBASE));
+	* Only really necessary for 18, 16-14 and sometimes 3:0
+	* (since these can be edge sensitive) but it doesn't
+	* hurt for the others
+	*/
+	*CIC_STS_REG = (1 << (d->irq - MSP_CIC_INTBASE));
+	smtc_im_ack_irq(d->irq);
 }
 
+/*Note: Limiting to VSMP . Not tested in SMTC */
+
+#ifdef CONFIG_MIPS_MT_SMP
+static int msp_cic_irq_set_affinity(struct irq_data *d,
+				    const struct cpumask *cpumask, bool force)
+{
+	int cpu;
+	unsigned long flags;
+	unsigned int  mtflags;
+	unsigned long imask = (1 << (irq - MSP_CIC_INTBASE));
+	volatile u32 *cic_mask = (volatile u32 *)CIC_VPE0_MSK_REG;
+
+	/* timer balancing should be disabled in kernel code */
+	BUG_ON(irq == MSP_INT_VPE0_TIMER || irq == MSP_INT_VPE1_TIMER);
+
+	LOCK_CORE(flags, mtflags);
+	/* enable if any of each VPE's TCs require this IRQ */
+	for_each_online_cpu(cpu) {
+		if (cpumask_test_cpu(cpu, cpumask))
+			cic_mask[cpu] |= imask;
+		else
+			cic_mask[cpu] &= ~imask;
+
+	}
+
+	UNLOCK_CORE(flags, mtflags);
+	return 0;
+
+}
+#endif
+
 static struct irq_chip msp_cic_irq_controller = {
 	.name = "MSP_CIC",
-	.ack = ack_msp_cic_irq,
-	.mask = ack_msp_cic_irq,
-	.mask_ack = ack_msp_cic_irq,
-	.unmask = unmask_msp_cic_irq,
+	.irq_mask = mask_cic_irq,
+	.irq_mask_ack = msp_cic_irq_ack,
+	.irq_unmask = unmask_cic_irq,
+	.irq_ack = msp_cic_irq_ack,
+#ifdef CONFIG_MIPS_MT_SMP
+	.irq_set_affinity = msp_cic_irq_set_affinity,
+#endif
 };
 
-
 void __init msp_cic_irq_init(void)
 {
 	int i;
-
 	/* Mask/clear interrupts. */
 	*CIC_VPE0_MSK_REG = 0x00000000;
-	*PER_INT_MSK_REG  = 0x00000000;
+	*CIC_VPE1_MSK_REG = 0x00000000;
 	*CIC_STS_REG      = 0xFFFFFFFF;
-	*PER_INT_STS_REG  = 0xFFFFFFFF;
-
-#if defined(CONFIG_PMC_MSP7120_GW) || \
-    defined(CONFIG_PMC_MSP7120_EVAL)
 	/*
-	 * The MSP7120 RG and EVBD boards use IRQ[6:4] for PCI.
-	 * These inputs map to EXT_INT_POL[6:4] inside the CIC.
-	 * They are to be active low, level sensitive.
-	 */
+	* The MSP7120 RG and EVBD boards use IRQ[6:4] for PCI.
+	* These inputs map to EXT_INT_POL[6:4] inside the CIC.
+	* They are to be active low, level sensitive.
+	*/
 	*CIC_EXT_CFG_REG &= 0xFFFF8F8F;
-#endif
 
 	/* initialize all the IRQ descriptors */
-	for (i = MSP_CIC_INTBASE; i < MSP_PER_INTBASE + 32; i++)
-		set_irq_chip_and_handler(i, &msp_cic_irq_controller,
+	for (i = MSP_CIC_INTBASE ; i < MSP_CIC_INTBASE + 32 ; i++) {
+		irq_set_chip_and_handler(i, &msp_cic_irq_controller,
 					 handle_level_irq);
+#ifdef CONFIG_MIPS_MT_SMTC
+		/* Mask of CIC interrupt */
+		irq_hwmask[i] = C_IRQ4;
+#endif
+	}
+
+	/* Initialize the PER interrupt sub-system */
+	 msp_per_irq_init();
 }
 
+/* CIC masked by CIC vector processing before dispatch called */
 void msp_cic_irq_dispatch(void)
 {
-	u32 pending;
-	int intbase;
-
-	intbase = MSP_CIC_INTBASE;
-	pending = *CIC_STS_REG & *CIC_VPE0_MSK_REG;
-
-	/* check for PER interrupt */
-	if (pending == (1 << (MSP_INT_PER - MSP_CIC_INTBASE))) {
-		intbase = MSP_PER_INTBASE;
-		pending = *PER_INT_STS_REG & *PER_INT_MSK_REG;
-	}
-
-	/* check for spurious interrupt */
-	if (pending == 0x00000000) {
-		printk(KERN_ERR
-			"Spurious %s interrupt? status %08x, mask %08x\n",
-			(intbase == MSP_CIC_INTBASE) ? "CIC" : "PER",
-			(intbase == MSP_CIC_INTBASE) ?
-				*CIC_STS_REG : *PER_INT_STS_REG,
-			(intbase == MSP_CIC_INTBASE) ?
-				*CIC_VPE0_MSK_REG : *PER_INT_MSK_REG);
-		return;
-	}
-
-	/* check for the timer and dispatch it first */
-	if ((intbase == MSP_CIC_INTBASE) &&
-	    (pending & (1 << (MSP_INT_VPE0_TIMER - MSP_CIC_INTBASE))))
+	volatile u32	*cic_msk_reg = (volatile u32 *)CIC_VPE0_MSK_REG;
+	u32	cic_mask;
+	u32	 pending;
+	int	cic_status = *CIC_STS_REG;
+	cic_mask = cic_msk_reg[get_current_vpe()];
+	pending = cic_status & cic_mask;
+	if (pending & (1 << (MSP_INT_VPE0_TIMER - MSP_CIC_INTBASE))) {
 		do_IRQ(MSP_INT_VPE0_TIMER);
-	else
-		do_IRQ(ffs(pending) + intbase - 1);
+	} else if (pending & (1 << (MSP_INT_VPE1_TIMER - MSP_CIC_INTBASE))) {
+		do_IRQ(MSP_INT_VPE1_TIMER);
+	} else if (pending & (1 << (MSP_INT_PER - MSP_CIC_INTBASE))) {
+		msp_per_irq_dispatch();
+	} else if (pending) {
+		do_IRQ(ffs(pending) + MSP_CIC_INTBASE - 1);
+	} else{
+		spurious_interrupt();
+	}
 }
diff --git a/arch/mips/pmc-sierra/msp71xx/msp_irq_per.c b/arch/mips/pmc-sierra/msp71xx/msp_irq_per.c
new file mode 100644
index 000000000000..f9b9dcdfa9dd
--- /dev/null
+++ b/arch/mips/pmc-sierra/msp71xx/msp_irq_per.c
@@ -0,0 +1,135 @@
+/*
+ * Copyright 2010 PMC-Sierra, Inc, derived from irq_cpu.c
+ *
+ * This file define the irq handler for MSP PER subsystem interrupts.
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/kernel.h>
+#include <linux/spinlock.h>
+#include <linux/bitops.h>
+
+#include <asm/mipsregs.h>
+#include <asm/system.h>
+
+#include <msp_cic_int.h>
+#include <msp_regs.h>
+
+
+/*
+ * Convenience Macro.  Should be somewhere generic.
+ */
+#define get_current_vpe()	\
+	((read_c0_tcbind() >> TCBIND_CURVPE_SHIFT) & TCBIND_CURVPE)
+
+#ifdef CONFIG_SMP
+/*
+ * The PER registers must be protected from concurrent access.
+ */
+
+static DEFINE_SPINLOCK(per_lock);
+#endif
+
+/* ensure writes to per are completed */
+
+static inline void per_wmb(void)
+{
+	const volatile void __iomem *per_mem = PER_INT_MSK_REG;
+	volatile u32 dummy_read;
+
+	wmb();
+	dummy_read = __raw_readl(per_mem);
+	dummy_read++;
+}
+
+static inline void unmask_per_irq(struct irq_data *d)
+{
+#ifdef CONFIG_SMP
+	unsigned long flags;
+	spin_lock_irqsave(&per_lock, flags);
+	*PER_INT_MSK_REG |= (1 << (d->irq - MSP_PER_INTBASE));
+	spin_unlock_irqrestore(&per_lock, flags);
+#else
+	*PER_INT_MSK_REG |= (1 << (d->irq - MSP_PER_INTBASE));
+#endif
+	per_wmb();
+}
+
+static inline void mask_per_irq(struct irq_data *d)
+{
+#ifdef CONFIG_SMP
+	unsigned long flags;
+	spin_lock_irqsave(&per_lock, flags);
+	*PER_INT_MSK_REG &= ~(1 << (d->irq - MSP_PER_INTBASE));
+	spin_unlock_irqrestore(&per_lock, flags);
+#else
+	*PER_INT_MSK_REG &= ~(1 << (d->irq - MSP_PER_INTBASE));
+#endif
+	per_wmb();
+}
+
+static inline void msp_per_irq_ack(struct irq_data *d)
+{
+	mask_per_irq(d);
+	/*
+	 * In the PER interrupt controller, only bits 11 and 10
+	 * are write-to-clear, (SPI TX complete, SPI RX complete).
+	 * It does nothing for any others.
+	 */
+	*PER_INT_STS_REG = (1 << (d->irq - MSP_PER_INTBASE));
+}
+
+#ifdef CONFIG_SMP
+static int msp_per_irq_set_affinity(struct irq_data *d,
+				    const struct cpumask *affinity, bool force)
+{
+	/* WTF is this doing ????? */
+	unmask_per_irq(d);
+	return 0;
+}
+#endif
+
+static struct irq_chip msp_per_irq_controller = {
+	.name = "MSP_PER",
+	.irq_enable = unmask_per_irq.
+	.irq_disable = mask_per_irq,
+	.irq_ack = msp_per_irq_ack,
+#ifdef CONFIG_SMP
+	.irq_set_affinity = msp_per_irq_set_affinity,
+#endif
+};
+
+void __init msp_per_irq_init(void)
+{
+	int i;
+	/* Mask/clear interrupts. */
+	*PER_INT_MSK_REG  = 0x00000000;
+	*PER_INT_STS_REG  = 0xFFFFFFFF;
+	/* initialize all the IRQ descriptors */
+	for (i = MSP_PER_INTBASE; i < MSP_PER_INTBASE + 32; i++) {
+		irq_set_chip(i, &msp_per_irq_controller);
+#ifdef CONFIG_MIPS_MT_SMTC
+		irq_hwmask[i] = C_IRQ4;
+#endif
+	}
+}
+
+void msp_per_irq_dispatch(void)
+{
+	u32	per_mask = *PER_INT_MSK_REG;
+	u32	per_status = *PER_INT_STS_REG;
+	u32	pending;
+
+	pending = per_status & per_mask;
+	if (pending) {
+		do_IRQ(ffs(pending) + MSP_PER_INTBASE - 1);
+	} else {
+		spurious_interrupt();
+	}
+}
diff --git a/arch/mips/pmc-sierra/msp71xx/msp_irq_slp.c b/arch/mips/pmc-sierra/msp71xx/msp_irq_slp.c
index 61f390232346..5bbcc47da6b9 100644
--- a/arch/mips/pmc-sierra/msp71xx/msp_irq_slp.c
+++ b/arch/mips/pmc-sierra/msp71xx/msp_irq_slp.c
@@ -21,8 +21,10 @@
 #include <msp_slp_int.h>
 #include <msp_regs.h>
 
-static inline void unmask_msp_slp_irq(unsigned int irq)
+static inline void unmask_msp_slp_irq(struct irq_data *d)
 {
+	unsigned int irq = d->irq;
+
 	/* check for PER interrupt range */
 	if (irq < MSP_PER_INTBASE)
 		*SLP_INT_MSK_REG |= (1 << (irq - MSP_SLP_INTBASE));
@@ -30,8 +32,10 @@ static inline void unmask_msp_slp_irq(unsigned int irq)
 		*PER_INT_MSK_REG |= (1 << (irq - MSP_PER_INTBASE));
 }
 
-static inline void mask_msp_slp_irq(unsigned int irq)
+static inline void mask_msp_slp_irq(struct irq_data *d)
 {
+	unsigned int irq = d->irq;
+
 	/* check for PER interrupt range */
 	if (irq < MSP_PER_INTBASE)
 		*SLP_INT_MSK_REG &= ~(1 << (irq - MSP_SLP_INTBASE));
@@ -43,8 +47,10 @@ static inline void mask_msp_slp_irq(unsigned int irq)
  * While we ack the interrupt interrupts are disabled and thus we don't need
  * to deal with concurrency issues.  Same for msp_slp_irq_end.
  */
-static inline void ack_msp_slp_irq(unsigned int irq)
+static inline void ack_msp_slp_irq(struct irq_data *d)
 {
+	unsigned int irq = d->irq;
+
 	/* check for PER interrupt range */
 	if (irq < MSP_PER_INTBASE)
 		*SLP_INT_STS_REG = (1 << (irq - MSP_SLP_INTBASE));
@@ -54,9 +60,9 @@ static inline void ack_msp_slp_irq(unsigned int irq)
 
 static struct irq_chip msp_slp_irq_controller = {
 	.name = "MSP_SLP",
-	.ack = ack_msp_slp_irq,
-	.mask = mask_msp_slp_irq,
-	.unmask = unmask_msp_slp_irq,
+	.irq_ack = ack_msp_slp_irq,
+	.irq_mask = mask_msp_slp_irq,
+	.irq_unmask = unmask_msp_slp_irq,
 };
 
 void __init msp_slp_irq_init(void)
@@ -71,7 +77,7 @@ void __init msp_slp_irq_init(void)
 
 	/* initialize all the IRQ descriptors */
 	for (i = MSP_SLP_INTBASE; i < MSP_PER_INTBASE + 32; i++)
-		set_irq_chip_and_handler(i, &msp_slp_irq_controller,
+		irq_set_chip_and_handler(i, &msp_slp_irq_controller,
 					 handle_level_irq);
 }
 
diff --git a/arch/mips/pmc-sierra/msp71xx/msp_setup.c b/arch/mips/pmc-sierra/msp71xx/msp_setup.c
index a54e85b3cf29..2413ea67877e 100644
--- a/arch/mips/pmc-sierra/msp71xx/msp_setup.c
+++ b/arch/mips/pmc-sierra/msp71xx/msp_setup.c
@@ -146,6 +146,8 @@ void __init plat_mem_setup(void)
 	pm_power_off = msp_power_off;
 }
 
+extern struct plat_smp_ops msp_smtc_smp_ops;
+
 void __init prom_init(void)
 {
 	unsigned long family;
@@ -226,10 +228,18 @@ void __init prom_init(void)
 	 */
 	msp_serial_setup();
 
+#ifdef CONFIG_MIPS_MT_SMP
+	register_smp_ops(&vsmp_smp_ops);
+#endif
+
+#ifdef CONFIG_MIPS_MT_SMTC
+	register_smp_ops(&msp_smtc_smp_ops);
+#endif
+
 #ifdef CONFIG_PMCTWILED
 	/*
 	 * Setup LED states before the subsys_initcall loads other
-	 * dependant drivers/modules.
+	 * dependent drivers/modules.
 	 */
 	pmctwiled_setup();
 #endif
diff --git a/arch/mips/pmc-sierra/msp71xx/msp_smp.c b/arch/mips/pmc-sierra/msp71xx/msp_smp.c
new file mode 100644
index 000000000000..bec17901ff03
--- /dev/null
+++ b/arch/mips/pmc-sierra/msp71xx/msp_smp.c
@@ -0,0 +1,77 @@
+/*
+ * Copyright (C) 2000, 2001, 2004 MIPS Technologies, Inc.
+ * Copyright (C) 2001 Ralf Baechle
+ * Copyright (C) 2010 PMC-Sierra, Inc.
+ *
+ *  VSMP support for MSP platforms . Derived from malta vsmp support.
+ *
+ *  This program is free software; you can distribute it and/or modify it
+ *  under the terms of the GNU General Public License (Version 2) as
+ *  published by the Free Software Foundation.
+ *
+ *  This program is distributed in the hope it will be useful, but WITHOUT
+ *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ *  for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ */
+#include <linux/smp.h>
+#include <linux/interrupt.h>
+
+#ifdef CONFIG_MIPS_MT_SMP
+#define MIPS_CPU_IPI_RESCHED_IRQ 0	/* SW int 0 for resched */
+#define MIPS_CPU_IPI_CALL_IRQ 1		/* SW int 1 for call */
+
+
+static void ipi_resched_dispatch(void)
+{
+	do_IRQ(MIPS_CPU_IPI_RESCHED_IRQ);
+}
+
+static void ipi_call_dispatch(void)
+{
+	do_IRQ(MIPS_CPU_IPI_CALL_IRQ);
+}
+
+static irqreturn_t ipi_resched_interrupt(int irq, void *dev_id)
+{
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t ipi_call_interrupt(int irq, void *dev_id)
+{
+	smp_call_function_interrupt();
+
+	return IRQ_HANDLED;
+}
+
+static struct irqaction irq_resched = {
+	.handler	= ipi_resched_interrupt,
+	.flags		= IRQF_DISABLED | IRQF_PERCPU,
+	.name		= "IPI_resched"
+};
+
+static struct irqaction irq_call = {
+	.handler	= ipi_call_interrupt,
+	.flags		= IRQF_DISABLED | IRQF_PERCPU,
+	.name		= "IPI_call"
+};
+
+void __init arch_init_ipiirq(int irq, struct irqaction *action)
+{
+	setup_irq(irq, action);
+	irq_set_handler(irq, handle_percpu_irq);
+}
+
+void __init msp_vsmp_int_init(void)
+{
+	set_vi_handler(MIPS_CPU_IPI_RESCHED_IRQ, ipi_resched_dispatch);
+	set_vi_handler(MIPS_CPU_IPI_CALL_IRQ, ipi_call_dispatch);
+	arch_init_ipiirq(MIPS_CPU_IPI_RESCHED_IRQ, &irq_resched);
+	arch_init_ipiirq(MIPS_CPU_IPI_CALL_IRQ, &irq_call);
+}
+#endif /* CONFIG_MIPS_MT_SMP */
diff --git a/arch/mips/pmc-sierra/msp71xx/msp_smtc.c b/arch/mips/pmc-sierra/msp71xx/msp_smtc.c
new file mode 100644
index 000000000000..c8dcc1c01e18
--- /dev/null
+++ b/arch/mips/pmc-sierra/msp71xx/msp_smtc.c
@@ -0,0 +1,105 @@
+/*
+ * MSP71xx Platform-specific hooks for SMP operation
+ */
+#include <linux/irq.h>
+#include <linux/init.h>
+
+#include <asm/mipsmtregs.h>
+#include <asm/mipsregs.h>
+#include <asm/smtc.h>
+#include <asm/smtc_ipi.h>
+
+/* VPE/SMP Prototype implements platform interfaces directly */
+
+/*
+ * Cause the specified action to be performed on a targeted "CPU"
+ */
+
+static void msp_smtc_send_ipi_single(int cpu, unsigned int action)
+{
+	/* "CPU" may be TC of same VPE, VPE of same CPU, or different CPU */
+	smtc_send_ipi(cpu, LINUX_SMP_IPI, action);
+}
+
+static void msp_smtc_send_ipi_mask(const struct cpumask *mask,
+						unsigned int action)
+{
+	unsigned int i;
+
+	for_each_cpu(i, mask)
+		msp_smtc_send_ipi_single(i, action);
+}
+
+/*
+ * Post-config but pre-boot cleanup entry point
+ */
+static void __cpuinit msp_smtc_init_secondary(void)
+{
+	int myvpe;
+
+	/* Don't enable Malta I/O interrupts (IP2) for secondary VPEs */
+	myvpe = read_c0_tcbind() & TCBIND_CURVPE;
+	if (myvpe > 0)
+		change_c0_status(ST0_IM, STATUSF_IP0 | STATUSF_IP1 |
+				STATUSF_IP6 | STATUSF_IP7);
+	smtc_init_secondary();
+}
+
+/*
+ * Platform "CPU" startup hook
+ */
+static void __cpuinit msp_smtc_boot_secondary(int cpu,
+					struct task_struct *idle)
+{
+	smtc_boot_secondary(cpu, idle);
+}
+
+/*
+ * SMP initialization finalization entry point
+ */
+static void __cpuinit msp_smtc_smp_finish(void)
+{
+	smtc_smp_finish();
+}
+
+/*
+ * Hook for after all CPUs are online
+ */
+
+static void msp_smtc_cpus_done(void)
+{
+}
+
+/*
+ * Platform SMP pre-initialization
+ *
+ * As noted above, we can assume a single CPU for now
+ * but it may be multithreaded.
+ */
+
+static void __init msp_smtc_smp_setup(void)
+{
+	/*
+	 * we won't get the definitive value until
+	 * we've run smtc_prepare_cpus later, but
+	 */
+
+	if (read_c0_config3() & (1 << 2))
+		smp_num_siblings = smtc_build_cpu_map(0);
+}
+
+static void __init msp_smtc_prepare_cpus(unsigned int max_cpus)
+{
+	smtc_prepare_cpus(max_cpus);
+}
+
+struct plat_smp_ops msp_smtc_smp_ops = {
+	.send_ipi_single	= msp_smtc_send_ipi_single,
+	.send_ipi_mask		= msp_smtc_send_ipi_mask,
+	.init_secondary		= msp_smtc_init_secondary,
+	.smp_finish		= msp_smtc_smp_finish,
+	.cpus_done		= msp_smtc_cpus_done,
+	.boot_secondary		= msp_smtc_boot_secondary,
+	.smp_setup		= msp_smtc_smp_setup,
+	.prepare_cpus		= msp_smtc_prepare_cpus,
+};
diff --git a/arch/mips/pmc-sierra/msp71xx/msp_time.c b/arch/mips/pmc-sierra/msp71xx/msp_time.c
index 01df84ce31e2..8b42f307a7a7 100644
--- a/arch/mips/pmc-sierra/msp71xx/msp_time.c
+++ b/arch/mips/pmc-sierra/msp71xx/msp_time.c
@@ -29,6 +29,7 @@
 #include <linux/module.h>
 #include <linux/ptrace.h>
 
+#include <asm/cevt-r4k.h>
 #include <asm/mipsregs.h>
 #include <asm/time.h>
 
@@ -36,6 +37,12 @@
 #include <msp_int.h>
 #include <msp_regs.h>
 
+#define get_current_vpe()   \
+	((read_c0_tcbind() >> TCBIND_CURVPE_SHIFT) & TCBIND_CURVPE)
+
+static struct irqaction timer_vpe1;
+static int tim_installed;
+
 void __init plat_time_init(void)
 {
 	char    *endp, *s;
@@ -83,5 +90,12 @@ void __init plat_time_init(void)
 
 unsigned int __cpuinit get_c0_compare_int(void)
 {
-	return MSP_INT_VPE0_TIMER;
+	/* MIPS_MT modes may want timer for second VPE */
+	if ((get_current_vpe()) && !tim_installed) {
+		memcpy(&timer_vpe1, &c0_compare_irqaction, sizeof(timer_vpe1));
+		setup_irq(MSP_INT_VPE1_TIMER, &timer_vpe1);
+		tim_installed++;
+	}
+
+	return get_current_vpe() ? MSP_INT_VPE1_TIMER : MSP_INT_VPE0_TIMER;
 }
diff --git a/arch/mips/pmc-sierra/msp71xx/msp_usb.c b/arch/mips/pmc-sierra/msp71xx/msp_usb.c
index 0ee01e359dd8..9a1aef89bd4c 100644
--- a/arch/mips/pmc-sierra/msp71xx/msp_usb.c
+++ b/arch/mips/pmc-sierra/msp71xx/msp_usb.c
@@ -1,7 +1,7 @@
 /*
  * The setup file for USB related hardware on PMC-Sierra MSP processors.
  *
- * Copyright 2006-2007 PMC-Sierra, Inc.
+ * Copyright 2006 PMC-Sierra, Inc.
  *
  * This program is free software; you can redistribute  it and/or modify it
  * under  the terms of  the GNU General  Public License as published by the
@@ -23,8 +23,8 @@
  *  with this program; if not, write  to the Free Software Foundation, Inc.,
  *  675 Mass Ave, Cambridge, MA 02139, USA.
  */
+#if defined(CONFIG_USB_EHCI_HCD) || defined(CONFIG_USB_GADGET)
 
-#include <linux/dma-mapping.h>
 #include <linux/init.h>
 #include <linux/ioport.h>
 #include <linux/platform_device.h>
@@ -34,40 +34,56 @@
 #include <msp_regs.h>
 #include <msp_int.h>
 #include <msp_prom.h>
+#include <msp_usb.h>
+
 
 #if defined(CONFIG_USB_EHCI_HCD)
-static struct resource msp_usbhost_resources [] = {
-	[0] = {
-		.start	= MSP_USB_BASE_START,
-		.end	= MSP_USB_BASE_END,
-		.flags 	= IORESOURCE_MEM,
+static struct resource msp_usbhost0_resources[] = {
+	[0] = { /* EHCI-HS operational and capabilities registers */
+		.start  = MSP_USB0_HS_START,
+		.end    = MSP_USB0_HS_END,
+		.flags  = IORESOURCE_MEM,
 	},
 	[1] = {
-		.start	= MSP_INT_USB,
-		.end	= MSP_INT_USB,
-		.flags	= IORESOURCE_IRQ,
+		.start  = MSP_INT_USB,
+		.end    = MSP_INT_USB,
+		.flags  = IORESOURCE_IRQ,
+	},
+	[2] = { /* MSBus-to-AMBA bridge register space */
+		.start	= MSP_USB0_MAB_START,
+		.end	= MSP_USB0_MAB_END,
+		.flags	= IORESOURCE_MEM,
+	},
+	[3] = { /* Identification and general hardware parameters */
+		.start	= MSP_USB0_ID_START,
+		.end	= MSP_USB0_ID_END,
+		.flags	= IORESOURCE_MEM,
 	},
 };
 
-static u64 msp_usbhost_dma_mask = DMA_BIT_MASK(32);
+static u64 msp_usbhost0_dma_mask = 0xffffffffUL;
 
-static struct platform_device msp_usbhost_device = {
-	.name	= "pmcmsp-ehci",
-	.id	= 0,
+static struct mspusb_device msp_usbhost0_device = {
 	.dev	= {
-		.dma_mask = &msp_usbhost_dma_mask,
-		.coherent_dma_mask = DMA_BIT_MASK(32),
+		.name	= "pmcmsp-ehci",
+		.id	= 0,
+		.dev	= {
+			.dma_mask = &msp_usbhost0_dma_mask,
+			.coherent_dma_mask = 0xffffffffUL,
+		},
+		.num_resources  = ARRAY_SIZE(msp_usbhost0_resources),
+		.resource       = msp_usbhost0_resources,
 	},
-	.num_resources 	= ARRAY_SIZE(msp_usbhost_resources),
-	.resource	= msp_usbhost_resources,
 };
-#endif /* CONFIG_USB_EHCI_HCD */
 
-#if defined(CONFIG_USB_GADGET)
-static struct resource msp_usbdev_resources [] = {
-	[0] = {
-		.start	= MSP_USB_BASE,
-		.end	= MSP_USB_BASE_END,
+/* MSP7140/MSP82XX has two USB2 hosts. */
+#ifdef CONFIG_MSP_HAS_DUAL_USB
+static u64 msp_usbhost1_dma_mask = 0xffffffffUL;
+
+static struct resource msp_usbhost1_resources[] = {
+	[0] = { /* EHCI-HS operational and capabilities registers */
+		.start	= MSP_USB1_HS_START,
+		.end	= MSP_USB1_HS_END,
 		.flags	= IORESOURCE_MEM,
 	},
 	[1] = {
@@ -75,76 +91,173 @@ static struct resource msp_usbdev_resources [] = {
 		.end	= MSP_INT_USB,
 		.flags	= IORESOURCE_IRQ,
 	},
+	[2] = { /* MSBus-to-AMBA bridge register space */
+		.start	= MSP_USB1_MAB_START,
+		.end	= MSP_USB1_MAB_END,
+		.flags	= IORESOURCE_MEM,
+	},
+	[3] = { /* Identification and general hardware parameters */
+		.start	= MSP_USB1_ID_START,
+		.end	= MSP_USB1_ID_END,
+		.flags	= IORESOURCE_MEM,
+	},
+};
+
+static struct mspusb_device msp_usbhost1_device = {
+	.dev	= {
+		.name	= "pmcmsp-ehci",
+		.id	= 1,
+		.dev	= {
+			.dma_mask = &msp_usbhost1_dma_mask,
+			.coherent_dma_mask = 0xffffffffUL,
+		},
+		.num_resources	= ARRAY_SIZE(msp_usbhost1_resources),
+		.resource	= msp_usbhost1_resources,
+	},
 };
+#endif /* CONFIG_MSP_HAS_DUAL_USB */
+#endif /* CONFIG_USB_EHCI_HCD */
 
-static u64 msp_usbdev_dma_mask = DMA_BIT_MASK(32);
+#if defined(CONFIG_USB_GADGET)
+static struct resource msp_usbdev0_resources[] = {
+	[0] = { /* EHCI-HS operational and capabilities registers */
+		.start  = MSP_USB0_HS_START,
+		.end    = MSP_USB0_HS_END,
+		.flags  = IORESOURCE_MEM,
+	},
+	[1] = {
+		.start  = MSP_INT_USB,
+		.end    = MSP_INT_USB,
+		.flags  = IORESOURCE_IRQ,
+	},
+	[2] = { /* MSBus-to-AMBA bridge register space */
+		.start	= MSP_USB0_MAB_START,
+		.end	= MSP_USB0_MAB_END,
+		.flags	= IORESOURCE_MEM,
+	},
+	[3] = { /* Identification and general hardware parameters */
+		.start	= MSP_USB0_ID_START,
+		.end	= MSP_USB0_ID_END,
+		.flags	= IORESOURCE_MEM,
+	},
+};
 
-static struct platform_device msp_usbdev_device = {
-	.name	= "msp71xx_udc",
-	.id	= 0,
+static u64 msp_usbdev_dma_mask = 0xffffffffUL;
+
+/* This may need to be converted to a mspusb_device, too. */
+static struct mspusb_device msp_usbdev0_device = {
 	.dev	= {
-		.dma_mask = &msp_usbdev_dma_mask,
-		.coherent_dma_mask = DMA_BIT_MASK(32),
+		.name	= "msp71xx_udc",
+		.id	= 0,
+		.dev	= {
+			.dma_mask = &msp_usbdev_dma_mask,
+			.coherent_dma_mask = 0xffffffffUL,
+		},
+		.num_resources  = ARRAY_SIZE(msp_usbdev0_resources),
+		.resource       = msp_usbdev0_resources,
 	},
-	.num_resources	= ARRAY_SIZE(msp_usbdev_resources),
-	.resource	= msp_usbdev_resources,
 };
-#endif /* CONFIG_USB_GADGET */
 
-#if defined(CONFIG_USB_EHCI_HCD) || defined(CONFIG_USB_GADGET)
-static struct platform_device *msp_devs[1];
-#endif
+#ifdef CONFIG_MSP_HAS_DUAL_USB
+static struct resource msp_usbdev1_resources[] = {
+	[0] = { /* EHCI-HS operational and capabilities registers */
+		.start  = MSP_USB1_HS_START,
+		.end    = MSP_USB1_HS_END,
+		.flags  = IORESOURCE_MEM,
+	},
+	[1] = {
+		.start  = MSP_INT_USB,
+		.end    = MSP_INT_USB,
+		.flags  = IORESOURCE_IRQ,
+	},
+	[2] = { /* MSBus-to-AMBA bridge register space */
+		.start	= MSP_USB1_MAB_START,
+		.end	= MSP_USB1_MAB_END,
+		.flags	= IORESOURCE_MEM,
+	},
+	[3] = { /* Identification and general hardware parameters */
+		.start	= MSP_USB1_ID_START,
+		.end	= MSP_USB1_ID_END,
+		.flags	= IORESOURCE_MEM,
+	},
+};
 
+/* This may need to be converted to a mspusb_device, too. */
+static struct mspusb_device msp_usbdev1_device = {
+	.dev	= {
+		.name	= "msp71xx_udc",
+		.id	= 0,
+		.dev	= {
+			.dma_mask = &msp_usbdev_dma_mask,
+			.coherent_dma_mask = 0xffffffffUL,
+		},
+		.num_resources  = ARRAY_SIZE(msp_usbdev1_resources),
+		.resource       = msp_usbdev1_resources,
+	},
+};
+
+#endif /* CONFIG_MSP_HAS_DUAL_USB */
+#endif /* CONFIG_USB_GADGET */
 
 static int __init msp_usb_setup(void)
 {
-#if defined(CONFIG_USB_EHCI_HCD) || defined(CONFIG_USB_GADGET)
-	char *strp;
-	char envstr[32];
-	unsigned int val = 0;
-	int result = 0;
+	char		*strp;
+	char		envstr[32];
+	struct platform_device *msp_devs[NUM_USB_DEVS];
+	unsigned int val;
 
+	/* construct environment name usbmode */
+	/* set usbmode <host/device> as pmon environment var */
 	/*
-	 * construct environment name usbmode
-	 * set usbmode <host/device> as pmon environment var
+	 * Could this perhaps be integrated into the "features" env var?
+	 * Use the features key "U", and follow with "H" for host-mode,
+	 * "D" for device-mode.  If it works for Ethernet, why not USB...
+	 *  -- hammtrev, 2007/03/22
 	 */
 	snprintf((char *)&envstr[0], sizeof(envstr), "usbmode");
 
-#if defined(CONFIG_USB_EHCI_HCD)
-	/* default to host mode */
+	/* set default host mode */
 	val = 1;
-#endif
 
 	/* get environment string */
 	strp = prom_getenv((char *)&envstr[0]);
 	if (strp) {
+		/* compare string */
 		if (!strcmp(strp, "device"))
 			val = 0;
 	}
 
 	if (val) {
 #if defined(CONFIG_USB_EHCI_HCD)
-		/* get host mode device */
-		msp_devs[0] = &msp_usbhost_device;
-		ppfinit("platform add USB HOST done %s.\n",
-			    msp_devs[0]->name);
-
-		result = platform_add_devices(msp_devs, ARRAY_SIZE(msp_devs));
-#endif /* CONFIG_USB_EHCI_HCD */
-	}
+		msp_devs[0] = &msp_usbhost0_device.dev;
+		ppfinit("platform add USB HOST done %s.\n", msp_devs[0]->name);
+#ifdef CONFIG_MSP_HAS_DUAL_USB
+		msp_devs[1] = &msp_usbhost1_device.dev;
+		ppfinit("platform add USB HOST done %s.\n", msp_devs[1]->name);
+#endif
+#else
+		ppfinit("%s: echi_hcd not supported\n", __FILE__);
+#endif  /* CONFIG_USB_EHCI_HCD */
+	} else {
 #if defined(CONFIG_USB_GADGET)
-	else {
 		/* get device mode structure */
-		msp_devs[0] = &msp_usbdev_device;
-		ppfinit("platform add USB DEVICE done %s.\n",
-			    msp_devs[0]->name);
-
-		result = platform_add_devices(msp_devs, ARRAY_SIZE(msp_devs));
+		msp_devs[0] = &msp_usbdev0_device.dev;
+		ppfinit("platform add USB DEVICE done %s.\n"
+					, msp_devs[0]->name);
+#ifdef CONFIG_MSP_HAS_DUAL_USB
+		msp_devs[1] = &msp_usbdev1_device.dev;
+		ppfinit("platform add USB DEVICE done %s.\n"
+					, msp_devs[1]->name);
+#endif
+#else
+		ppfinit("%s: usb_gadget not supported\n", __FILE__);
+#endif  /* CONFIG_USB_GADGET */
 	}
-#endif /* CONFIG_USB_GADGET */
-#endif /* CONFIG_USB_EHCI_HCD || CONFIG_USB_GADGET */
+	/* add device */
+	platform_add_devices(msp_devs, ARRAY_SIZE(msp_devs));
 
-	return result;
+	return 0;
 }
 
 subsys_initcall(msp_usb_setup);
+#endif /* CONFIG_USB_EHCI_HCD || CONFIG_USB_GADGET */
diff --git a/arch/mips/pnx833x/common/interrupts.c b/arch/mips/pnx833x/common/interrupts.c
index 941916f8aaff..adc171c8846f 100644
--- a/arch/mips/pnx833x/common/interrupts.c
+++ b/arch/mips/pnx833x/common/interrupts.c
@@ -152,10 +152,6 @@ static inline void pnx833x_hard_disable_pic_irq(unsigned int irq)
 	PNX833X_PIC_INT_REG(irq) = 0;
 }
 
-static int irqflags[PNX833X_PIC_NUM_IRQ];	/* initialized by zeroes */
-#define IRQFLAG_STARTED		1
-#define IRQFLAG_DISABLED	2
-
 static DEFINE_RAW_SPINLOCK(pnx833x_irq_lock);
 
 static unsigned int pnx833x_startup_pic_irq(unsigned int irq)
@@ -164,108 +160,54 @@ static unsigned int pnx833x_startup_pic_irq(unsigned int irq)
 	unsigned int pic_irq = irq - PNX833X_PIC_IRQ_BASE;
 
 	raw_spin_lock_irqsave(&pnx833x_irq_lock, flags);
-
-	irqflags[pic_irq] = IRQFLAG_STARTED;	/* started, not disabled */
 	pnx833x_hard_enable_pic_irq(pic_irq);
-
 	raw_spin_unlock_irqrestore(&pnx833x_irq_lock, flags);
 	return 0;
 }
 
-static void pnx833x_shutdown_pic_irq(unsigned int irq)
-{
-	unsigned long flags;
-	unsigned int pic_irq = irq - PNX833X_PIC_IRQ_BASE;
-
-	raw_spin_lock_irqsave(&pnx833x_irq_lock, flags);
-
-	irqflags[pic_irq] = 0;			/* not started */
-	pnx833x_hard_disable_pic_irq(pic_irq);
-
-	raw_spin_unlock_irqrestore(&pnx833x_irq_lock, flags);
-}
-
-static void pnx833x_enable_pic_irq(unsigned int irq)
+static void pnx833x_enable_pic_irq(struct irq_data *d)
 {
 	unsigned long flags;
-	unsigned int pic_irq = irq - PNX833X_PIC_IRQ_BASE;
+	unsigned int pic_irq = d->irq - PNX833X_PIC_IRQ_BASE;
 
 	raw_spin_lock_irqsave(&pnx833x_irq_lock, flags);
-
-	irqflags[pic_irq] &= ~IRQFLAG_DISABLED;
-	if (irqflags[pic_irq] == IRQFLAG_STARTED)
-		pnx833x_hard_enable_pic_irq(pic_irq);
-
+	pnx833x_hard_enable_pic_irq(pic_irq);
 	raw_spin_unlock_irqrestore(&pnx833x_irq_lock, flags);
 }
 
-static void pnx833x_disable_pic_irq(unsigned int irq)
+static void pnx833x_disable_pic_irq(struct irq_data *d)
 {
 	unsigned long flags;
-	unsigned int pic_irq = irq - PNX833X_PIC_IRQ_BASE;
+	unsigned int pic_irq = d->irq - PNX833X_PIC_IRQ_BASE;
 
 	raw_spin_lock_irqsave(&pnx833x_irq_lock, flags);
-
-	irqflags[pic_irq] |= IRQFLAG_DISABLED;
 	pnx833x_hard_disable_pic_irq(pic_irq);
-
 	raw_spin_unlock_irqrestore(&pnx833x_irq_lock, flags);
 }
 
-static void pnx833x_ack_pic_irq(unsigned int irq)
-{
-}
-
-static void pnx833x_end_pic_irq(unsigned int irq)
-{
-}
-
 static DEFINE_RAW_SPINLOCK(pnx833x_gpio_pnx833x_irq_lock);
 
-static unsigned int pnx833x_startup_gpio_irq(unsigned int irq)
-{
-	int pin = irq - PNX833X_GPIO_IRQ_BASE;
-	unsigned long flags;
-	raw_spin_lock_irqsave(&pnx833x_gpio_pnx833x_irq_lock, flags);
-	pnx833x_gpio_enable_irq(pin);
-	raw_spin_unlock_irqrestore(&pnx833x_gpio_pnx833x_irq_lock, flags);
-	return 0;
-}
-
-static void pnx833x_enable_gpio_irq(unsigned int irq)
+static void pnx833x_enable_gpio_irq(struct irq_data *d)
 {
-	int pin = irq - PNX833X_GPIO_IRQ_BASE;
+	int pin = d->irq - PNX833X_GPIO_IRQ_BASE;
 	unsigned long flags;
 	raw_spin_lock_irqsave(&pnx833x_gpio_pnx833x_irq_lock, flags);
 	pnx833x_gpio_enable_irq(pin);
 	raw_spin_unlock_irqrestore(&pnx833x_gpio_pnx833x_irq_lock, flags);
 }
 
-static void pnx833x_disable_gpio_irq(unsigned int irq)
+static void pnx833x_disable_gpio_irq(struct irq_data *d)
 {
-	int pin = irq - PNX833X_GPIO_IRQ_BASE;
+	int pin = d->irq - PNX833X_GPIO_IRQ_BASE;
 	unsigned long flags;
 	raw_spin_lock_irqsave(&pnx833x_gpio_pnx833x_irq_lock, flags);
 	pnx833x_gpio_disable_irq(pin);
 	raw_spin_unlock_irqrestore(&pnx833x_gpio_pnx833x_irq_lock, flags);
 }
 
-static void pnx833x_ack_gpio_irq(unsigned int irq)
-{
-}
-
-static void pnx833x_end_gpio_irq(unsigned int irq)
-{
-	int pin = irq - PNX833X_GPIO_IRQ_BASE;
-	unsigned long flags;
-	raw_spin_lock_irqsave(&pnx833x_gpio_pnx833x_irq_lock, flags);
-	pnx833x_gpio_clear_irq(pin);
-	raw_spin_unlock_irqrestore(&pnx833x_gpio_pnx833x_irq_lock, flags);
-}
-
-static int pnx833x_set_type_gpio_irq(unsigned int irq, unsigned int flow_type)
+static int pnx833x_set_type_gpio_irq(struct irq_data *d, unsigned int flow_type)
 {
-	int pin = irq - PNX833X_GPIO_IRQ_BASE;
+	int pin = d->irq - PNX833X_GPIO_IRQ_BASE;
 	int gpio_mode;
 
 	switch (flow_type) {
@@ -296,23 +238,15 @@ static int pnx833x_set_type_gpio_irq(unsigned int irq, unsigned int flow_type)
 
 static struct irq_chip pnx833x_pic_irq_type = {
 	.name = "PNX-PIC",
-	.startup = pnx833x_startup_pic_irq,
-	.shutdown = pnx833x_shutdown_pic_irq,
-	.enable = pnx833x_enable_pic_irq,
-	.disable = pnx833x_disable_pic_irq,
-	.ack = pnx833x_ack_pic_irq,
-	.end = pnx833x_end_pic_irq
+	.irq_enable = pnx833x_enable_pic_irq,
+	.irq_disable = pnx833x_disable_pic_irq,
 };
 
 static struct irq_chip pnx833x_gpio_irq_type = {
 	.name = "PNX-GPIO",
-	.startup = pnx833x_startup_gpio_irq,
-	.shutdown = pnx833x_disable_gpio_irq,
-	.enable = pnx833x_enable_gpio_irq,
-	.disable = pnx833x_disable_gpio_irq,
-	.ack = pnx833x_ack_gpio_irq,
-	.end = pnx833x_end_gpio_irq,
-	.set_type = pnx833x_set_type_gpio_irq
+	.irq_enable = pnx833x_enable_gpio_irq,
+	.irq_disable = pnx833x_disable_gpio_irq,
+	.irq_set_type = pnx833x_set_type_gpio_irq,
 };
 
 void __init arch_init_irq(void)
@@ -325,11 +259,13 @@ void __init arch_init_irq(void)
 	/* Set IRQ information in irq_desc */
 	for (irq = PNX833X_PIC_IRQ_BASE; irq < (PNX833X_PIC_IRQ_BASE + PNX833X_PIC_NUM_IRQ); irq++) {
 		pnx833x_hard_disable_pic_irq(irq);
-		set_irq_chip_and_handler(irq, &pnx833x_pic_irq_type, handle_simple_irq);
+		irq_set_chip_and_handler(irq, &pnx833x_pic_irq_type,
+					 handle_simple_irq);
 	}
 
 	for (irq = PNX833X_GPIO_IRQ_BASE; irq < (PNX833X_GPIO_IRQ_BASE + PNX833X_GPIO_NUM_IRQ); irq++)
-		set_irq_chip_and_handler(irq, &pnx833x_gpio_irq_type, handle_simple_irq);
+		irq_set_chip_and_handler(irq, &pnx833x_gpio_irq_type,
+					 handle_simple_irq);
 
 	/* Set PIC priority limiter register to 0 */
 	PNX833X_PIC_INT_PRIORITY = 0;
diff --git a/arch/mips/pnx833x/common/platform.c b/arch/mips/pnx833x/common/platform.c
index ce45df17fd09..87167dcc79fa 100644
--- a/arch/mips/pnx833x/common/platform.c
+++ b/arch/mips/pnx833x/common/platform.c
@@ -165,7 +165,7 @@ static struct i2c_pnx0105_dev pnx833x_i2c_dev[] = {
 	{
 		.base = PNX833X_I2C0_PORTS_START,
 		.irq = -1, /* should be PNX833X_PIC_I2C0_INT but polling is faster */
-		.clock = 6,	/* 0 == 400 kHz, 4 == 100 kHz(Maximum HDMI), 6 = 50kHz(Prefered HDCP) */
+		.clock = 6,	/* 0 == 400 kHz, 4 == 100 kHz(Maximum HDMI), 6 = 50kHz(Preferred HDCP) */
 		.bus_addr = 0,	/* no slave support */
 	},
 	{
diff --git a/arch/mips/pnx8550/common/int.c b/arch/mips/pnx8550/common/int.c
index cfed5051dc6d..6b93c81779c1 100644
--- a/arch/mips/pnx8550/common/int.c
+++ b/arch/mips/pnx8550/common/int.c
@@ -114,8 +114,10 @@ static inline void unmask_gic_int(unsigned int irq_nr)
 	PNX8550_GIC_REQ(irq_nr) = (1<<26 | 1<<16) | (1<<28) | gic_prio[irq_nr];
 }
 
-static inline void mask_irq(unsigned int irq_nr)
+static inline void mask_irq(struct irq_data *d)
 {
+	unsigned int irq_nr = d->irq;
+
 	if ((PNX8550_INT_CP0_MIN <= irq_nr) && (irq_nr <= PNX8550_INT_CP0_MAX)) {
 		modify_cp0_intmask(1 << irq_nr, 0);
 	} else if ((PNX8550_INT_GIC_MIN <= irq_nr) &&
@@ -129,8 +131,10 @@ static inline void mask_irq(unsigned int irq_nr)
 	}
 }
 
-static inline void unmask_irq(unsigned int irq_nr)
+static inline void unmask_irq(struct irq_data *d)
 {
+	unsigned int irq_nr = d->irq;
+
 	if ((PNX8550_INT_CP0_MIN <= irq_nr) && (irq_nr <= PNX8550_INT_CP0_MAX)) {
 		modify_cp0_intmask(0, 1 << irq_nr);
 	} else if ((PNX8550_INT_GIC_MIN <= irq_nr) &&
@@ -157,10 +161,8 @@ int pnx8550_set_gic_priority(int irq, int priority)
 
 static struct irq_chip level_irq_type = {
 	.name =		"PNX Level IRQ",
-	.ack =		mask_irq,
-	.mask =		mask_irq,
-	.mask_ack =	mask_irq,
-	.unmask =	unmask_irq,
+	.irq_mask =	mask_irq,
+	.irq_unmask =	unmask_irq,
 };
 
 static struct irqaction gic_action = {
@@ -180,10 +182,8 @@ void __init arch_init_irq(void)
 	int i;
 	int configPR;
 
-	for (i = 0; i < PNX8550_INT_CP0_TOTINT; i++) {
-		set_irq_chip_and_handler(i, &level_irq_type, handle_level_irq);
-		mask_irq(i);	/* mask the irq just in case  */
-	}
+	for (i = 0; i < PNX8550_INT_CP0_TOTINT; i++)
+		irq_set_chip_and_handler(i, &level_irq_type, handle_level_irq);
 
 	/* init of GIC/IPC interrupts */
 	/* should be done before cp0 since cp0 init enables the GIC int */
@@ -206,7 +206,7 @@ void __init arch_init_irq(void)
 		/* mask/priority is still 0 so we will not get any
 		 * interrupts until it is unmasked */
 
-		set_irq_chip_and_handler(i, &level_irq_type, handle_level_irq);
+		irq_set_chip_and_handler(i, &level_irq_type, handle_level_irq);
 	}
 
 	/* Priority level 0 */
@@ -215,20 +215,20 @@ void __init arch_init_irq(void)
 	/* Set int vector table address */
 	PNX8550_GIC_VECTOR_0 = PNX8550_GIC_VECTOR_1 = 0;
 
-	set_irq_chip_and_handler(MIPS_CPU_GIC_IRQ, &level_irq_type,
+	irq_set_chip_and_handler(MIPS_CPU_GIC_IRQ, &level_irq_type,
 				 handle_level_irq);
 	setup_irq(MIPS_CPU_GIC_IRQ, &gic_action);
 
 	/* init of Timer interrupts */
 	for (i = PNX8550_INT_TIMER_MIN; i <= PNX8550_INT_TIMER_MAX; i++)
-		set_irq_chip_and_handler(i, &level_irq_type, handle_level_irq);
+		irq_set_chip_and_handler(i, &level_irq_type, handle_level_irq);
 
 	/* Stop Timer 1-3 */
 	configPR = read_c0_config7();
 	configPR |= 0x00000038;
 	write_c0_config7(configPR);
 
-	set_irq_chip_and_handler(MIPS_CPU_TIMER_IRQ, &level_irq_type,
+	irq_set_chip_and_handler(MIPS_CPU_TIMER_IRQ, &level_irq_type,
 				 handle_level_irq);
 	setup_irq(MIPS_CPU_TIMER_IRQ, &timer_action);
 }
diff --git a/arch/mips/powertv/asic/irq_asic.c b/arch/mips/powertv/asic/irq_asic.c
index e55382434155..7fb97fb0931e 100644
--- a/arch/mips/powertv/asic/irq_asic.c
+++ b/arch/mips/powertv/asic/irq_asic.c
@@ -21,9 +21,10 @@
 
 #include <asm/mach-powertv/asic_regs.h>
 
-static inline void unmask_asic_irq(unsigned int irq)
+static inline void unmask_asic_irq(struct irq_data *d)
 {
 	unsigned long enable_bit;
+	unsigned int irq = d->irq;
 
 	enable_bit = (1 << (irq & 0x1f));
 
@@ -45,9 +46,10 @@ static inline void unmask_asic_irq(unsigned int irq)
 	}
 }
 
-static inline void mask_asic_irq(unsigned int irq)
+static inline void mask_asic_irq(struct irq_data *d)
 {
 	unsigned long disable_mask;
+	unsigned int irq = d->irq;
 
 	disable_mask = ~(1 << (irq & 0x1f));
 
@@ -71,11 +73,8 @@ static inline void mask_asic_irq(unsigned int irq)
 
 static struct irq_chip asic_irq_chip = {
 	.name = "ASIC Level",
-	.ack = mask_asic_irq,
-	.mask = mask_asic_irq,
-	.mask_ack = mask_asic_irq,
-	.unmask = unmask_asic_irq,
-	.eoi = unmask_asic_irq,
+	.irq_mask = mask_asic_irq,
+	.irq_unmask = unmask_asic_irq,
 };
 
 void __init asic_irq_init(void)
@@ -113,5 +112,5 @@ void __init asic_irq_init(void)
 	 * Initialize interrupt handlers.
 	 */
 	for (i = 0; i < NR_IRQS; i++)
-		set_irq_chip_and_handler(i, &asic_irq_chip, handle_level_irq);
+		irq_set_chip_and_handler(i, &asic_irq_chip, handle_level_irq);
 }
diff --git a/arch/mips/rb532/irq.c b/arch/mips/rb532/irq.c
index ea6cec3c1e0d..7c6db74e3fad 100644
--- a/arch/mips/rb532/irq.c
+++ b/arch/mips/rb532/irq.c
@@ -111,10 +111,10 @@ static inline void ack_local_irq(unsigned int ip)
 	clear_c0_cause(ipnum);
 }
 
-static void rb532_enable_irq(unsigned int irq_nr)
+static void rb532_enable_irq(struct irq_data *d)
 {
+	unsigned int group, intr_bit, irq_nr = d->irq;
 	int ip = irq_nr - GROUP0_IRQ_BASE;
-	unsigned int group, intr_bit;
 	volatile unsigned int *addr;
 
 	if (ip < 0)
@@ -132,10 +132,10 @@ static void rb532_enable_irq(unsigned int irq_nr)
 	}
 }
 
-static void rb532_disable_irq(unsigned int irq_nr)
+static void rb532_disable_irq(struct irq_data *d)
 {
+	unsigned int group, intr_bit, mask, irq_nr = d->irq;
 	int ip = irq_nr - GROUP0_IRQ_BASE;
-	unsigned int group, intr_bit, mask;
 	volatile unsigned int *addr;
 
 	if (ip < 0) {
@@ -163,18 +163,18 @@ static void rb532_disable_irq(unsigned int irq_nr)
 	}
 }
 
-static void rb532_mask_and_ack_irq(unsigned int irq_nr)
+static void rb532_mask_and_ack_irq(struct irq_data *d)
 {
-	rb532_disable_irq(irq_nr);
-	ack_local_irq(group_to_ip(irq_to_group(irq_nr)));
+	rb532_disable_irq(d);
+	ack_local_irq(group_to_ip(irq_to_group(d->irq)));
 }
 
-static int rb532_set_type(unsigned int irq_nr, unsigned type)
+static int rb532_set_type(struct irq_data *d,  unsigned type)
 {
-	int gpio = irq_nr - GPIO_MAPPED_IRQ_BASE;
-	int group = irq_to_group(irq_nr);
+	int gpio = d->irq - GPIO_MAPPED_IRQ_BASE;
+	int group = irq_to_group(d->irq);
 
-	if (group != GPIO_MAPPED_IRQ_GROUP || irq_nr > (GROUP4_IRQ_BASE + 13))
+	if (group != GPIO_MAPPED_IRQ_GROUP || d->irq > (GROUP4_IRQ_BASE + 13))
 		return (type == IRQ_TYPE_LEVEL_HIGH) ? 0 : -EINVAL;
 
 	switch (type) {
@@ -193,11 +193,11 @@ static int rb532_set_type(unsigned int irq_nr, unsigned type)
 
 static struct irq_chip rc32434_irq_type = {
 	.name		= "RB532",
-	.ack		= rb532_disable_irq,
-	.mask		= rb532_disable_irq,
-	.mask_ack	= rb532_mask_and_ack_irq,
-	.unmask		= rb532_enable_irq,
-	.set_type	= rb532_set_type,
+	.irq_ack	= rb532_disable_irq,
+	.irq_mask	= rb532_disable_irq,
+	.irq_mask_ack	= rb532_mask_and_ack_irq,
+	.irq_unmask	= rb532_enable_irq,
+	.irq_set_type	= rb532_set_type,
 };
 
 void __init arch_init_irq(void)
@@ -207,8 +207,8 @@ void __init arch_init_irq(void)
 	pr_info("Initializing IRQ's: %d out of %d\n", RC32434_NR_IRQS, NR_IRQS);
 
 	for (i = 0; i < RC32434_NR_IRQS; i++)
-		set_irq_chip_and_handler(i,  &rc32434_irq_type,
-					handle_level_irq);
+		irq_set_chip_and_handler(i, &rc32434_irq_type,
+					 handle_level_irq);
 }
 
 /* Main Interrupt dispatcher */
diff --git a/arch/mips/sgi-ip22/ip22-int.c b/arch/mips/sgi-ip22/ip22-int.c
index 383f11d7f442..476423a01296 100644
--- a/arch/mips/sgi-ip22/ip22-int.c
+++ b/arch/mips/sgi-ip22/ip22-int.c
@@ -31,88 +31,80 @@ static char lc3msk_to_irqnr[256];
 
 extern int ip22_eisa_init(void);
 
-static void enable_local0_irq(unsigned int irq)
+static void enable_local0_irq(struct irq_data *d)
 {
 	/* don't allow mappable interrupt to be enabled from setup_irq,
 	 * we have our own way to do so */
-	if (irq != SGI_MAP_0_IRQ)
-		sgint->imask0 |= (1 << (irq - SGINT_LOCAL0));
+	if (d->irq != SGI_MAP_0_IRQ)
+		sgint->imask0 |= (1 << (d->irq - SGINT_LOCAL0));
 }
 
-static void disable_local0_irq(unsigned int irq)
+static void disable_local0_irq(struct irq_data *d)
 {
-	sgint->imask0 &= ~(1 << (irq - SGINT_LOCAL0));
+	sgint->imask0 &= ~(1 << (d->irq - SGINT_LOCAL0));
 }
 
 static struct irq_chip ip22_local0_irq_type = {
 	.name		= "IP22 local 0",
-	.ack		= disable_local0_irq,
-	.mask		= disable_local0_irq,
-	.mask_ack	= disable_local0_irq,
-	.unmask		= enable_local0_irq,
+	.irq_mask	= disable_local0_irq,
+	.irq_unmask	= enable_local0_irq,
 };
 
-static void enable_local1_irq(unsigned int irq)
+static void enable_local1_irq(struct irq_data *d)
 {
 	/* don't allow mappable interrupt to be enabled from setup_irq,
 	 * we have our own way to do so */
-	if (irq != SGI_MAP_1_IRQ)
-		sgint->imask1 |= (1 << (irq - SGINT_LOCAL1));
+	if (d->irq != SGI_MAP_1_IRQ)
+		sgint->imask1 |= (1 << (d->irq - SGINT_LOCAL1));
 }
 
-static void disable_local1_irq(unsigned int irq)
+static void disable_local1_irq(struct irq_data *d)
 {
-	sgint->imask1 &= ~(1 << (irq - SGINT_LOCAL1));
+	sgint->imask1 &= ~(1 << (d->irq - SGINT_LOCAL1));
 }
 
 static struct irq_chip ip22_local1_irq_type = {
 	.name		= "IP22 local 1",
-	.ack		= disable_local1_irq,
-	.mask		= disable_local1_irq,
-	.mask_ack	= disable_local1_irq,
-	.unmask		= enable_local1_irq,
+	.irq_mask	= disable_local1_irq,
+	.irq_unmask	= enable_local1_irq,
 };
 
-static void enable_local2_irq(unsigned int irq)
+static void enable_local2_irq(struct irq_data *d)
 {
 	sgint->imask0 |= (1 << (SGI_MAP_0_IRQ - SGINT_LOCAL0));
-	sgint->cmeimask0 |= (1 << (irq - SGINT_LOCAL2));
+	sgint->cmeimask0 |= (1 << (d->irq - SGINT_LOCAL2));
 }
 
-static void disable_local2_irq(unsigned int irq)
+static void disable_local2_irq(struct irq_data *d)
 {
-	sgint->cmeimask0 &= ~(1 << (irq - SGINT_LOCAL2));
+	sgint->cmeimask0 &= ~(1 << (d->irq - SGINT_LOCAL2));
 	if (!sgint->cmeimask0)
 		sgint->imask0 &= ~(1 << (SGI_MAP_0_IRQ - SGINT_LOCAL0));
 }
 
 static struct irq_chip ip22_local2_irq_type = {
 	.name		= "IP22 local 2",
-	.ack		= disable_local2_irq,
-	.mask		= disable_local2_irq,
-	.mask_ack	= disable_local2_irq,
-	.unmask		= enable_local2_irq,
+	.irq_mask	= disable_local2_irq,
+	.irq_unmask	= enable_local2_irq,
 };
 
-static void enable_local3_irq(unsigned int irq)
+static void enable_local3_irq(struct irq_data *d)
 {
 	sgint->imask1 |= (1 << (SGI_MAP_1_IRQ - SGINT_LOCAL1));
-	sgint->cmeimask1 |= (1 << (irq - SGINT_LOCAL3));
+	sgint->cmeimask1 |= (1 << (d->irq - SGINT_LOCAL3));
 }
 
-static void disable_local3_irq(unsigned int irq)
+static void disable_local3_irq(struct irq_data *d)
 {
-	sgint->cmeimask1 &= ~(1 << (irq - SGINT_LOCAL3));
+	sgint->cmeimask1 &= ~(1 << (d->irq - SGINT_LOCAL3));
 	if (!sgint->cmeimask1)
 		sgint->imask1 &= ~(1 << (SGI_MAP_1_IRQ - SGINT_LOCAL1));
 }
 
 static struct irq_chip ip22_local3_irq_type = {
 	.name		= "IP22 local 3",
-	.ack		= disable_local3_irq,
-	.mask		= disable_local3_irq,
-	.mask_ack	= disable_local3_irq,
-	.unmask		= enable_local3_irq,
+	.irq_mask	= disable_local3_irq,
+	.irq_unmask	= enable_local3_irq,
 };
 
 static void indy_local0_irqdispatch(void)
@@ -320,7 +312,7 @@ void __init arch_init_irq(void)
 		else
 			handler		= &ip22_local3_irq_type;
 
-		set_irq_chip_and_handler(i, handler, handle_level_irq);
+		irq_set_chip_and_handler(i, handler, handle_level_irq);
 	}
 
 	/* vector handler. this register the IRQ as non-sharable */
diff --git a/arch/mips/sgi-ip27/Kconfig b/arch/mips/sgi-ip27/Kconfig
index 5e960ae9735a..bc5e9769bb73 100644
--- a/arch/mips/sgi-ip27/Kconfig
+++ b/arch/mips/sgi-ip27/Kconfig
@@ -1,7 +1,7 @@
 #config SGI_SN0_XXL
 #	bool "IP27 XXL"
 #	depends on SGI_IP27
-#	  This options adds support for userspace processes upto 16TB size.
+#	  This options adds support for userspace processes up to 16TB size.
 #	  Normally the limit is just .5TB.
 
 choice
diff --git a/arch/mips/sgi-ip27/TODO b/arch/mips/sgi-ip27/TODO
index 19f1512c8f2e..160857ff1483 100644
--- a/arch/mips/sgi-ip27/TODO
+++ b/arch/mips/sgi-ip27/TODO
@@ -13,7 +13,7 @@ being invoked on all nodes in ip27-memory.c.
 9. start_thread must turn off UX64 ... and define tlb_refill_debug.
 10. Need a bad pmd table, bad pte table. __bad_pmd_table/__bad_pagetable
 does not agree with pgd_bad/pmd_bad.
-11. All intrs (ip27_do_irq handlers) are targetted at cpu A on the node.
+11. All intrs (ip27_do_irq handlers) are targeted at cpu A on the node.
 This might need to change later. Only the timer intr is set up to be
 received on both Cpu A and B. (ip27_do_irq()/bridge_startup())
 13. Cache flushing (specially the SMP version) has to be investigated.
diff --git a/arch/mips/sgi-ip27/ip27-init.c b/arch/mips/sgi-ip27/ip27-init.c
index 51d3a4f2d7e1..923c080f77bd 100644
--- a/arch/mips/sgi-ip27/ip27-init.c
+++ b/arch/mips/sgi-ip27/ip27-init.c
@@ -93,7 +93,7 @@ static void __cpuinit per_hub_init(cnodeid_t cnode)
 
 	/*
 	 * Some interrupts are reserved by hardware or by software convention.
-	 * Mark these as reserved right away so they won't be used accidently
+	 * Mark these as reserved right away so they won't be used accidentally
 	 * later.
 	 */
 	for (i = 0; i <= BASE_PCI_IRQ; i++) {
diff --git a/arch/mips/sgi-ip27/ip27-irq.c b/arch/mips/sgi-ip27/ip27-irq.c
index 6a123ea72de5..0a04603d577c 100644
--- a/arch/mips/sgi-ip27/ip27-irq.c
+++ b/arch/mips/sgi-ip27/ip27-irq.c
@@ -41,7 +41,7 @@
  * Linux has a controller-independent x86 interrupt architecture.
  * every controller has a 'controller-template', that is used
  * by the main code to do the right thing. Each driver-visible
- * interrupt source is transparently wired to the apropriate
+ * interrupt source is transparently wired to the appropriate
  * controller. Thus drivers need not be aware of the
  * interrupt-controller.
  *
@@ -240,7 +240,7 @@ static int intr_disconnect_level(int cpu, int bit)
 }
 
 /* Startup one of the (PCI ...) IRQs routes over a bridge.  */
-static unsigned int startup_bridge_irq(unsigned int irq)
+static unsigned int startup_bridge_irq(struct irq_data *d)
 {
 	struct bridge_controller *bc;
 	bridgereg_t device;
@@ -248,16 +248,16 @@ static unsigned int startup_bridge_irq(unsigned int irq)
 	int pin, swlevel;
 	cpuid_t cpu;
 
-	pin = SLOT_FROM_PCI_IRQ(irq);
-	bc = IRQ_TO_BRIDGE(irq);
+	pin = SLOT_FROM_PCI_IRQ(d->irq);
+	bc = IRQ_TO_BRIDGE(d->irq);
 	bridge = bc->base;
 
-	pr_debug("bridge_startup(): irq= 0x%x  pin=%d\n", irq, pin);
+	pr_debug("bridge_startup(): irq= 0x%x  pin=%d\n", d->irq, pin);
 	/*
 	 * "map" irq to a swlevel greater than 6 since the first 6 bits
 	 * of INT_PEND0 are taken
 	 */
-	swlevel = find_level(&cpu, irq);
+	swlevel = find_level(&cpu, d->irq);
 	bridge->b_int_addr[pin].addr = (0x20000 | swlevel | (bc->nasid << 8));
 	bridge->b_int_enable |= (1 << pin);
 	bridge->b_int_enable |= 0x7ffffe00;	/* more stuff in int_enable */
@@ -288,58 +288,56 @@ static unsigned int startup_bridge_irq(unsigned int irq)
 }
 
 /* Shutdown one of the (PCI ...) IRQs routes over a bridge.  */
-static void shutdown_bridge_irq(unsigned int irq)
+static void shutdown_bridge_irq(struct irq_data *d)
 {
-	struct bridge_controller *bc = IRQ_TO_BRIDGE(irq);
+	struct bridge_controller *bc = IRQ_TO_BRIDGE(d->irq);
 	bridge_t *bridge = bc->base;
 	int pin, swlevel;
 	cpuid_t cpu;
 
-	pr_debug("bridge_shutdown: irq 0x%x\n", irq);
-	pin = SLOT_FROM_PCI_IRQ(irq);
+	pr_debug("bridge_shutdown: irq 0x%x\n", d->irq);
+	pin = SLOT_FROM_PCI_IRQ(d->irq);
 
 	/*
 	 * map irq to a swlevel greater than 6 since the first 6 bits
 	 * of INT_PEND0 are taken
 	 */
-	swlevel = find_level(&cpu, irq);
+	swlevel = find_level(&cpu, d->irq);
 	intr_disconnect_level(cpu, swlevel);
 
 	bridge->b_int_enable &= ~(1 << pin);
 	bridge->b_wid_tflush;
 }
 
-static inline void enable_bridge_irq(unsigned int irq)
+static inline void enable_bridge_irq(struct irq_data *d)
 {
 	cpuid_t cpu;
 	int swlevel;
 
-	swlevel = find_level(&cpu, irq);	/* Criminal offence */
+	swlevel = find_level(&cpu, d->irq);	/* Criminal offence */
 	intr_connect_level(cpu, swlevel);
 }
 
-static inline void disable_bridge_irq(unsigned int irq)
+static inline void disable_bridge_irq(struct irq_data *d)
 {
 	cpuid_t cpu;
 	int swlevel;
 
-	swlevel = find_level(&cpu, irq);	/* Criminal offence */
+	swlevel = find_level(&cpu, d->irq);	/* Criminal offence */
 	intr_disconnect_level(cpu, swlevel);
 }
 
 static struct irq_chip bridge_irq_type = {
 	.name		= "bridge",
-	.startup	= startup_bridge_irq,
-	.shutdown	= shutdown_bridge_irq,
-	.ack		= disable_bridge_irq,
-	.mask		= disable_bridge_irq,
-	.mask_ack	= disable_bridge_irq,
-	.unmask		= enable_bridge_irq,
+	.irq_startup	= startup_bridge_irq,
+	.irq_shutdown	= shutdown_bridge_irq,
+	.irq_mask	= disable_bridge_irq,
+	.irq_unmask	= enable_bridge_irq,
 };
 
 void __devinit register_bridge_irq(unsigned int irq)
 {
-	set_irq_chip_and_handler(irq, &bridge_irq_type, handle_level_irq);
+	irq_set_chip_and_handler(irq, &bridge_irq_type, handle_level_irq);
 }
 
 int __devinit request_bridge_irq(struct bridge_controller *bc)
diff --git a/arch/mips/sgi-ip27/ip27-timer.c b/arch/mips/sgi-ip27/ip27-timer.c
index d6802d6d1f82..a152538d3c97 100644
--- a/arch/mips/sgi-ip27/ip27-timer.c
+++ b/arch/mips/sgi-ip27/ip27-timer.c
@@ -36,21 +36,18 @@
 #include <asm/sn/sn0/hubio.h>
 #include <asm/pci/bridge.h>
 
-static void enable_rt_irq(unsigned int irq)
+static void enable_rt_irq(struct irq_data *d)
 {
 }
 
-static void disable_rt_irq(unsigned int irq)
+static void disable_rt_irq(struct irq_data *d)
 {
 }
 
 static struct irq_chip rt_irq_type = {
 	.name		= "SN HUB RT timer",
-	.ack		= disable_rt_irq,
-	.mask		= disable_rt_irq,
-	.mask_ack	= disable_rt_irq,
-	.unmask		= enable_rt_irq,
-	.eoi		= enable_rt_irq,
+	.irq_mask	= disable_rt_irq,
+	.irq_unmask	= enable_rt_irq,
 };
 
 static int rt_next_event(unsigned long delta, struct clock_event_device *evt)
@@ -156,7 +153,7 @@ static void __init hub_rt_clock_event_global_init(void)
 			panic("Allocation of irq number for timer failed");
 	} while (xchg(&rt_timer_irq, irq));
 
-	set_irq_chip_and_handler(irq, &rt_irq_type, handle_percpu_irq);
+	irq_set_chip_and_handler(irq, &rt_irq_type, handle_percpu_irq);
 	setup_irq(irq, &hub_rt_irqaction);
 }
 
diff --git a/arch/mips/sgi-ip32/ip32-irq.c b/arch/mips/sgi-ip32/ip32-irq.c
index eb40824b172a..c65ea76d56c7 100644
--- a/arch/mips/sgi-ip32/ip32-irq.c
+++ b/arch/mips/sgi-ip32/ip32-irq.c
@@ -130,70 +130,48 @@ static struct irqaction cpuerr_irq = {
 
 static uint64_t crime_mask;
 
-static inline void crime_enable_irq(unsigned int irq)
+static inline void crime_enable_irq(struct irq_data *d)
 {
-	unsigned int bit = irq - CRIME_IRQ_BASE;
+	unsigned int bit = d->irq - CRIME_IRQ_BASE;
 
 	crime_mask |= 1 << bit;
 	crime->imask = crime_mask;
 }
 
-static inline void crime_disable_irq(unsigned int irq)
+static inline void crime_disable_irq(struct irq_data *d)
 {
-	unsigned int bit = irq - CRIME_IRQ_BASE;
+	unsigned int bit = d->irq - CRIME_IRQ_BASE;
 
 	crime_mask &= ~(1 << bit);
 	crime->imask = crime_mask;
 	flush_crime_bus();
 }
 
-static void crime_level_mask_and_ack_irq(unsigned int irq)
-{
-	crime_disable_irq(irq);
-}
-
-static void crime_level_end_irq(unsigned int irq)
-{
-	if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS)))
-		crime_enable_irq(irq);
-}
-
 static struct irq_chip crime_level_interrupt = {
 	.name		= "IP32 CRIME",
-	.ack		= crime_level_mask_and_ack_irq,
-	.mask		= crime_disable_irq,
-	.mask_ack	= crime_level_mask_and_ack_irq,
-	.unmask		= crime_enable_irq,
-	.end		= crime_level_end_irq,
+	.irq_mask	= crime_disable_irq,
+	.irq_unmask	= crime_enable_irq,
 };
 
-static void crime_edge_mask_and_ack_irq(unsigned int irq)
+static void crime_edge_mask_and_ack_irq(struct irq_data *d)
 {
-	unsigned int bit = irq - CRIME_IRQ_BASE;
+	unsigned int bit = d->irq - CRIME_IRQ_BASE;
 	uint64_t crime_int;
 
 	/* Edge triggered interrupts must be cleared. */
-
 	crime_int = crime->hard_int;
 	crime_int &= ~(1 << bit);
 	crime->hard_int = crime_int;
 
-	crime_disable_irq(irq);
-}
-
-static void crime_edge_end_irq(unsigned int irq)
-{
-	if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS)))
-		crime_enable_irq(irq);
+	crime_disable_irq(d);
 }
 
 static struct irq_chip crime_edge_interrupt = {
 	.name		= "IP32 CRIME",
-	.ack		= crime_edge_mask_and_ack_irq,
-	.mask		= crime_disable_irq,
-	.mask_ack	= crime_edge_mask_and_ack_irq,
-	.unmask		= crime_enable_irq,
-	.end		= crime_edge_end_irq,
+	.irq_ack	= crime_edge_mask_and_ack_irq,
+	.irq_mask	= crime_disable_irq,
+	.irq_mask_ack	= crime_edge_mask_and_ack_irq,
+	.irq_unmask	= crime_enable_irq,
 };
 
 /*
@@ -204,37 +182,28 @@ static struct irq_chip crime_edge_interrupt = {
 
 static unsigned long macepci_mask;
 
-static void enable_macepci_irq(unsigned int irq)
+static void enable_macepci_irq(struct irq_data *d)
 {
-	macepci_mask |= MACEPCI_CONTROL_INT(irq - MACEPCI_SCSI0_IRQ);
+	macepci_mask |= MACEPCI_CONTROL_INT(d->irq - MACEPCI_SCSI0_IRQ);
 	mace->pci.control = macepci_mask;
-	crime_mask |= 1 << (irq - CRIME_IRQ_BASE);
+	crime_mask |= 1 << (d->irq - CRIME_IRQ_BASE);
 	crime->imask = crime_mask;
 }
 
-static void disable_macepci_irq(unsigned int irq)
+static void disable_macepci_irq(struct irq_data *d)
 {
-	crime_mask &= ~(1 << (irq - CRIME_IRQ_BASE));
+	crime_mask &= ~(1 << (d->irq - CRIME_IRQ_BASE));
 	crime->imask = crime_mask;
 	flush_crime_bus();
-	macepci_mask &= ~MACEPCI_CONTROL_INT(irq - MACEPCI_SCSI0_IRQ);
+	macepci_mask &= ~MACEPCI_CONTROL_INT(d->irq - MACEPCI_SCSI0_IRQ);
 	mace->pci.control = macepci_mask;
 	flush_mace_bus();
 }
 
-static void end_macepci_irq(unsigned int irq)
-{
-	if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)))
-		enable_macepci_irq(irq);
-}
-
 static struct irq_chip ip32_macepci_interrupt = {
 	.name = "IP32 MACE PCI",
-	.ack = disable_macepci_irq,
-	.mask = disable_macepci_irq,
-	.mask_ack = disable_macepci_irq,
-	.unmask = enable_macepci_irq,
-	.end = end_macepci_irq,
+	.irq_mask = disable_macepci_irq,
+	.irq_unmask = enable_macepci_irq,
 };
 
 /* This is used for MACE ISA interrupts.  That means bits 4-6 in the
@@ -276,13 +245,13 @@ static struct irq_chip ip32_macepci_interrupt = {
 
 static unsigned long maceisa_mask;
 
-static void enable_maceisa_irq(unsigned int irq)
+static void enable_maceisa_irq(struct irq_data *d)
 {
 	unsigned int crime_int = 0;
 
-	pr_debug("maceisa enable: %u\n", irq);
+	pr_debug("maceisa enable: %u\n", d->irq);
 
-	switch (irq) {
+	switch (d->irq) {
 	case MACEISA_AUDIO_SW_IRQ ... MACEISA_AUDIO3_MERR_IRQ:
 		crime_int = MACE_AUDIO_INT;
 		break;
@@ -296,15 +265,15 @@ static void enable_maceisa_irq(unsigned int irq)
 	pr_debug("crime_int %08x enabled\n", crime_int);
 	crime_mask |= crime_int;
 	crime->imask = crime_mask;
-	maceisa_mask |= 1 << (irq - MACEISA_AUDIO_SW_IRQ);
+	maceisa_mask |= 1 << (d->irq - MACEISA_AUDIO_SW_IRQ);
 	mace->perif.ctrl.imask = maceisa_mask;
 }
 
-static void disable_maceisa_irq(unsigned int irq)
+static void disable_maceisa_irq(struct irq_data *d)
 {
 	unsigned int crime_int = 0;
 
-	maceisa_mask &= ~(1 << (irq - MACEISA_AUDIO_SW_IRQ));
+	maceisa_mask &= ~(1 << (d->irq - MACEISA_AUDIO_SW_IRQ));
         if (!(maceisa_mask & MACEISA_AUDIO_INT))
 		crime_int |= MACE_AUDIO_INT;
         if (!(maceisa_mask & MACEISA_MISC_INT))
@@ -318,76 +287,57 @@ static void disable_maceisa_irq(unsigned int irq)
 	flush_mace_bus();
 }
 
-static void mask_and_ack_maceisa_irq(unsigned int irq)
+static void mask_and_ack_maceisa_irq(struct irq_data *d)
 {
 	unsigned long mace_int;
 
 	/* edge triggered */
 	mace_int = mace->perif.ctrl.istat;
-	mace_int &= ~(1 << (irq - MACEISA_AUDIO_SW_IRQ));
+	mace_int &= ~(1 << (d->irq - MACEISA_AUDIO_SW_IRQ));
 	mace->perif.ctrl.istat = mace_int;
 
-	disable_maceisa_irq(irq);
-}
-
-static void end_maceisa_irq(unsigned irq)
-{
-	if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS)))
-		enable_maceisa_irq(irq);
+	disable_maceisa_irq(d);
 }
 
 static struct irq_chip ip32_maceisa_level_interrupt = {
 	.name		= "IP32 MACE ISA",
-	.ack		= disable_maceisa_irq,
-	.mask		= disable_maceisa_irq,
-	.mask_ack	= disable_maceisa_irq,
-	.unmask		= enable_maceisa_irq,
-	.end		= end_maceisa_irq,
+	.irq_mask	= disable_maceisa_irq,
+	.irq_unmask	= enable_maceisa_irq,
 };
 
 static struct irq_chip ip32_maceisa_edge_interrupt = {
 	.name		= "IP32 MACE ISA",
-	.ack		= mask_and_ack_maceisa_irq,
-	.mask		= disable_maceisa_irq,
-	.mask_ack	= mask_and_ack_maceisa_irq,
-	.unmask		= enable_maceisa_irq,
-	.end		= end_maceisa_irq,
+	.irq_ack	= mask_and_ack_maceisa_irq,
+	.irq_mask	= disable_maceisa_irq,
+	.irq_mask_ack	= mask_and_ack_maceisa_irq,
+	.irq_unmask	= enable_maceisa_irq,
 };
 
 /* This is used for regular non-ISA, non-PCI MACE interrupts.  That means
  * bits 0-3 and 7 in the CRIME register.
  */
 
-static void enable_mace_irq(unsigned int irq)
+static void enable_mace_irq(struct irq_data *d)
 {
-	unsigned int bit = irq - CRIME_IRQ_BASE;
+	unsigned int bit = d->irq - CRIME_IRQ_BASE;
 
 	crime_mask |= (1 << bit);
 	crime->imask = crime_mask;
 }
 
-static void disable_mace_irq(unsigned int irq)
+static void disable_mace_irq(struct irq_data *d)
 {
-	unsigned int bit = irq - CRIME_IRQ_BASE;
+	unsigned int bit = d->irq - CRIME_IRQ_BASE;
 
 	crime_mask &= ~(1 << bit);
 	crime->imask = crime_mask;
 	flush_crime_bus();
 }
 
-static void end_mace_irq(unsigned int irq)
-{
-	if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)))
-		enable_mace_irq(irq);
-}
-
 static struct irq_chip ip32_mace_interrupt = {
 	.name = "IP32 MACE",
-	.ack = disable_mace_irq,
-	.mask = disable_mace_irq,
-	.mask_ack = disable_mace_irq,
-	.unmask = enable_mace_irq,
-	.end = end_mace_irq,
+	.irq_mask = disable_mace_irq,
+	.irq_unmask = enable_mace_irq,
 };
 
 static void ip32_unknown_interrupt(void)
@@ -501,43 +451,51 @@ void __init arch_init_irq(void)
 	for (irq = CRIME_IRQ_BASE; irq <= IP32_IRQ_MAX; irq++) {
 		switch (irq) {
 		case MACE_VID_IN1_IRQ ... MACE_PCI_BRIDGE_IRQ:
-			set_irq_chip_and_handler_name(irq,&ip32_mace_interrupt,
-				handle_level_irq, "level");
+			irq_set_chip_and_handler_name(irq,
+						      &ip32_mace_interrupt,
+						      handle_level_irq,
+						      "level");
 			break;
 
 		case MACEPCI_SCSI0_IRQ ...  MACEPCI_SHARED2_IRQ:
-			set_irq_chip_and_handler_name(irq,
-				&ip32_macepci_interrupt, handle_level_irq,
-				"level");
+			irq_set_chip_and_handler_name(irq,
+						      &ip32_macepci_interrupt,
+						      handle_level_irq,
+						      "level");
 			break;
 
 		case CRIME_CPUERR_IRQ:
 		case CRIME_MEMERR_IRQ:
-			set_irq_chip_and_handler_name(irq,
-				&crime_level_interrupt, handle_level_irq,
-				"level");
+			irq_set_chip_and_handler_name(irq,
+						      &crime_level_interrupt,
+						      handle_level_irq,
+						      "level");
 			break;
 
 		case CRIME_GBE0_IRQ ... CRIME_GBE3_IRQ:
 		case CRIME_RE_EMPTY_E_IRQ ... CRIME_RE_IDLE_E_IRQ:
 		case CRIME_SOFT0_IRQ ... CRIME_SOFT2_IRQ:
 		case CRIME_VICE_IRQ:
-			set_irq_chip_and_handler_name(irq,
-				&crime_edge_interrupt, handle_edge_irq, "edge");
+			irq_set_chip_and_handler_name(irq,
+						      &crime_edge_interrupt,
+						      handle_edge_irq,
+						      "edge");
 			break;
 
 		case MACEISA_PARALLEL_IRQ:
 		case MACEISA_SERIAL1_TDMAPR_IRQ:
 		case MACEISA_SERIAL2_TDMAPR_IRQ:
-			set_irq_chip_and_handler_name(irq,
-				&ip32_maceisa_edge_interrupt, handle_edge_irq,
-				"edge");
+			irq_set_chip_and_handler_name(irq,
+						      &ip32_maceisa_edge_interrupt,
+						      handle_edge_irq,
+						      "edge");
 			break;
 
 		default:
-			set_irq_chip_and_handler_name(irq,
-				&ip32_maceisa_level_interrupt, handle_level_irq,
-				"level");
+			irq_set_chip_and_handler_name(irq,
+						      &ip32_maceisa_level_interrupt,
+						      handle_level_irq,
+						      "level");
 			break;
 		}
 	}
diff --git a/arch/mips/sibyte/bcm1480/irq.c b/arch/mips/sibyte/bcm1480/irq.c
index 044bbe462c2c..09740d60e187 100644
--- a/arch/mips/sibyte/bcm1480/irq.c
+++ b/arch/mips/sibyte/bcm1480/irq.c
@@ -44,31 +44,10 @@
  * for interrupt lines
  */
 
-
-static void end_bcm1480_irq(unsigned int irq);
-static void enable_bcm1480_irq(unsigned int irq);
-static void disable_bcm1480_irq(unsigned int irq);
-static void ack_bcm1480_irq(unsigned int irq);
-#ifdef CONFIG_SMP
-static int bcm1480_set_affinity(unsigned int irq, const struct cpumask *mask);
-#endif
-
 #ifdef CONFIG_PCI
 extern unsigned long ht_eoi_space;
 #endif
 
-static struct irq_chip bcm1480_irq_type = {
-	.name = "BCM1480-IMR",
-	.ack = ack_bcm1480_irq,
-	.mask = disable_bcm1480_irq,
-	.mask_ack = ack_bcm1480_irq,
-	.unmask = enable_bcm1480_irq,
-	.end = end_bcm1480_irq,
-#ifdef CONFIG_SMP
-	.set_affinity = bcm1480_set_affinity
-#endif
-};
-
 /* Store the CPU id (not the logical number) */
 int bcm1480_irq_owner[BCM1480_NR_IRQS];
 
@@ -109,12 +88,13 @@ void bcm1480_unmask_irq(int cpu, int irq)
 }
 
 #ifdef CONFIG_SMP
-static int bcm1480_set_affinity(unsigned int irq, const struct cpumask *mask)
+static int bcm1480_set_affinity(struct irq_data *d, const struct cpumask *mask,
+				bool force)
 {
+	unsigned int irq_dirty, irq = d->irq;
 	int i = 0, old_cpu, cpu, int_on, k;
 	u64 cur_ints;
 	unsigned long flags;
-	unsigned int irq_dirty;
 
 	i = cpumask_first(mask);
 
@@ -156,21 +136,25 @@ static int bcm1480_set_affinity(unsigned int irq, const struct cpumask *mask)
 
 /*****************************************************************************/
 
-static void disable_bcm1480_irq(unsigned int irq)
+static void disable_bcm1480_irq(struct irq_data *d)
 {
+	unsigned int irq = d->irq;
+
 	bcm1480_mask_irq(bcm1480_irq_owner[irq], irq);
 }
 
-static void enable_bcm1480_irq(unsigned int irq)
+static void enable_bcm1480_irq(struct irq_data *d)
 {
+	unsigned int irq = d->irq;
+
 	bcm1480_unmask_irq(bcm1480_irq_owner[irq], irq);
 }
 
 
-static void ack_bcm1480_irq(unsigned int irq)
+static void ack_bcm1480_irq(struct irq_data *d)
 {
+	unsigned int irq_dirty, irq = d->irq;
 	u64 pending;
-	unsigned int irq_dirty;
 	int k;
 
 	/*
@@ -217,21 +201,23 @@ static void ack_bcm1480_irq(unsigned int irq)
 	bcm1480_mask_irq(bcm1480_irq_owner[irq], irq);
 }
 
-
-static void end_bcm1480_irq(unsigned int irq)
-{
-	if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS))) {
-		bcm1480_unmask_irq(bcm1480_irq_owner[irq], irq);
-	}
-}
-
+static struct irq_chip bcm1480_irq_type = {
+	.name = "BCM1480-IMR",
+	.irq_mask_ack = ack_bcm1480_irq,
+	.irq_mask = disable_bcm1480_irq,
+	.irq_unmask = enable_bcm1480_irq,
+#ifdef CONFIG_SMP
+	.irq_set_affinity = bcm1480_set_affinity
+#endif
+};
 
 void __init init_bcm1480_irqs(void)
 {
 	int i;
 
 	for (i = 0; i < BCM1480_NR_IRQS; i++) {
-		set_irq_chip_and_handler(i, &bcm1480_irq_type, handle_level_irq);
+		irq_set_chip_and_handler(i, &bcm1480_irq_type,
+					 handle_level_irq);
 		bcm1480_irq_owner[i] = 0;
 	}
 }
diff --git a/arch/mips/sibyte/sb1250/irq.c b/arch/mips/sibyte/sb1250/irq.c
index 12ac04a658ee..be4460a5f6a8 100644
--- a/arch/mips/sibyte/sb1250/irq.c
+++ b/arch/mips/sibyte/sb1250/irq.c
@@ -43,31 +43,10 @@
  * for interrupt lines
  */
 
-
-static void end_sb1250_irq(unsigned int irq);
-static void enable_sb1250_irq(unsigned int irq);
-static void disable_sb1250_irq(unsigned int irq);
-static void ack_sb1250_irq(unsigned int irq);
-#ifdef CONFIG_SMP
-static int sb1250_set_affinity(unsigned int irq, const struct cpumask *mask);
-#endif
-
 #ifdef CONFIG_SIBYTE_HAS_LDT
 extern unsigned long ldt_eoi_space;
 #endif
 
-static struct irq_chip sb1250_irq_type = {
-	.name = "SB1250-IMR",
-	.ack = ack_sb1250_irq,
-	.mask = disable_sb1250_irq,
-	.mask_ack = ack_sb1250_irq,
-	.unmask = enable_sb1250_irq,
-	.end = end_sb1250_irq,
-#ifdef CONFIG_SMP
-	.set_affinity = sb1250_set_affinity
-#endif
-};
-
 /* Store the CPU id (not the logical number) */
 int sb1250_irq_owner[SB1250_NR_IRQS];
 
@@ -102,9 +81,11 @@ void sb1250_unmask_irq(int cpu, int irq)
 }
 
 #ifdef CONFIG_SMP
-static int sb1250_set_affinity(unsigned int irq, const struct cpumask *mask)
+static int sb1250_set_affinity(struct irq_data *d, const struct cpumask *mask,
+			       bool force)
 {
 	int i = 0, old_cpu, cpu, int_on;
+	unsigned int irq = d->irq;
 	u64 cur_ints;
 	unsigned long flags;
 
@@ -142,21 +123,17 @@ static int sb1250_set_affinity(unsigned int irq, const struct cpumask *mask)
 }
 #endif
 
-/*****************************************************************************/
-
-static void disable_sb1250_irq(unsigned int irq)
+static void enable_sb1250_irq(struct irq_data *d)
 {
-	sb1250_mask_irq(sb1250_irq_owner[irq], irq);
-}
+	unsigned int irq = d->irq;
 
-static void enable_sb1250_irq(unsigned int irq)
-{
 	sb1250_unmask_irq(sb1250_irq_owner[irq], irq);
 }
 
 
-static void ack_sb1250_irq(unsigned int irq)
+static void ack_sb1250_irq(struct irq_data *d)
 {
+	unsigned int irq = d->irq;
 #ifdef CONFIG_SIBYTE_HAS_LDT
 	u64 pending;
 
@@ -199,21 +176,22 @@ static void ack_sb1250_irq(unsigned int irq)
 	sb1250_mask_irq(sb1250_irq_owner[irq], irq);
 }
 
-
-static void end_sb1250_irq(unsigned int irq)
-{
-	if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS))) {
-		sb1250_unmask_irq(sb1250_irq_owner[irq], irq);
-	}
-}
-
+static struct irq_chip sb1250_irq_type = {
+	.name = "SB1250-IMR",
+	.irq_mask_ack = ack_sb1250_irq,
+	.irq_unmask = enable_sb1250_irq,
+#ifdef CONFIG_SMP
+	.irq_set_affinity = sb1250_set_affinity
+#endif
+};
 
 void __init init_sb1250_irqs(void)
 {
 	int i;
 
 	for (i = 0; i < SB1250_NR_IRQS; i++) {
-		set_irq_chip_and_handler(i, &sb1250_irq_type, handle_level_irq);
+		irq_set_chip_and_handler(i, &sb1250_irq_type,
+					 handle_level_irq);
 		sb1250_irq_owner[i] = 0;
 	}
 }
diff --git a/arch/mips/sni/a20r.c b/arch/mips/sni/a20r.c
index bbe7187879fa..c48194c3073b 100644
--- a/arch/mips/sni/a20r.c
+++ b/arch/mips/sni/a20r.c
@@ -168,33 +168,22 @@ static u32 a20r_ack_hwint(void)
 	return status;
 }
 
-static inline void unmask_a20r_irq(unsigned int irq)
+static inline void unmask_a20r_irq(struct irq_data *d)
 {
-	set_c0_status(0x100 << (irq - SNI_A20R_IRQ_BASE));
+	set_c0_status(0x100 << (d->irq - SNI_A20R_IRQ_BASE));
 	irq_enable_hazard();
 }
 
-static inline void mask_a20r_irq(unsigned int irq)
+static inline void mask_a20r_irq(struct irq_data *d)
 {
-	clear_c0_status(0x100 << (irq - SNI_A20R_IRQ_BASE));
+	clear_c0_status(0x100 << (d->irq - SNI_A20R_IRQ_BASE));
 	irq_disable_hazard();
 }
 
-static void end_a20r_irq(unsigned int irq)
-{
-	if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS))) {
-		a20r_ack_hwint();
-		unmask_a20r_irq(irq);
-	}
-}
-
 static struct irq_chip a20r_irq_type = {
 	.name		= "A20R",
-	.ack		= mask_a20r_irq,
-	.mask		= mask_a20r_irq,
-	.mask_ack	= mask_a20r_irq,
-	.unmask		= unmask_a20r_irq,
-	.end		= end_a20r_irq,
+	.irq_mask	= mask_a20r_irq,
+	.irq_unmask	= unmask_a20r_irq,
 };
 
 /*
@@ -220,7 +209,7 @@ void __init sni_a20r_irq_init(void)
 	int i;
 
 	for (i = SNI_A20R_IRQ_BASE + 2 ; i < SNI_A20R_IRQ_BASE + 8; i++)
-		set_irq_chip_and_handler(i, &a20r_irq_type, handle_level_irq);
+		irq_set_chip_and_handler(i, &a20r_irq_type, handle_level_irq);
 	sni_hwint = a20r_hwint;
 	change_c0_status(ST0_IM, IE_IRQ0);
 	setup_irq(SNI_A20R_IRQ_BASE + 3, &sni_isa_irq);
diff --git a/arch/mips/sni/pcimt.c b/arch/mips/sni/pcimt.c
index 8c92c73bc717..ed3b3d317358 100644
--- a/arch/mips/sni/pcimt.c
+++ b/arch/mips/sni/pcimt.c
@@ -194,33 +194,24 @@ static struct pci_controller sni_controller = {
 	.io_map_base    = SNI_PORT_BASE
 };
 
-static void enable_pcimt_irq(unsigned int irq)
+static void enable_pcimt_irq(struct irq_data *d)
 {
-	unsigned int mask = 1 << (irq - PCIMT_IRQ_INT2);
+	unsigned int mask = 1 << (d->irq - PCIMT_IRQ_INT2);
 
 	*(volatile u8 *) PCIMT_IRQSEL |= mask;
 }
 
-void disable_pcimt_irq(unsigned int irq)
+void disable_pcimt_irq(struct irq_data *d)
 {
-	unsigned int mask = ~(1 << (irq - PCIMT_IRQ_INT2));
+	unsigned int mask = ~(1 << (d->irq - PCIMT_IRQ_INT2));
 
 	*(volatile u8 *) PCIMT_IRQSEL &= mask;
 }
 
-static void end_pcimt_irq(unsigned int irq)
-{
-	if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)))
-		enable_pcimt_irq(irq);
-}
-
 static struct irq_chip pcimt_irq_type = {
 	.name = "PCIMT",
-	.ack = disable_pcimt_irq,
-	.mask = disable_pcimt_irq,
-	.mask_ack = disable_pcimt_irq,
-	.unmask = enable_pcimt_irq,
-	.end = end_pcimt_irq,
+	.irq_mask = disable_pcimt_irq,
+	.irq_unmask = enable_pcimt_irq,
 };
 
 /*
@@ -305,7 +296,7 @@ void __init sni_pcimt_irq_init(void)
 	mips_cpu_irq_init();
 	/* Actually we've got more interrupts to handle ...  */
 	for (i = PCIMT_IRQ_INT2; i <= PCIMT_IRQ_SCSI; i++)
-		set_irq_chip_and_handler(i, &pcimt_irq_type, handle_level_irq);
+		irq_set_chip_and_handler(i, &pcimt_irq_type, handle_level_irq);
 	sni_hwint = sni_pcimt_hwint;
 	change_c0_status(ST0_IM, IE_IRQ1|IE_IRQ3);
 }
diff --git a/arch/mips/sni/pcit.c b/arch/mips/sni/pcit.c
index dc9874553bec..b5246373d16b 100644
--- a/arch/mips/sni/pcit.c
+++ b/arch/mips/sni/pcit.c
@@ -156,33 +156,24 @@ static struct pci_controller sni_pcit_controller = {
 	.io_map_base    = SNI_PORT_BASE
 };
 
-static void enable_pcit_irq(unsigned int irq)
+static void enable_pcit_irq(struct irq_data *d)
 {
-	u32 mask = 1 << (irq - SNI_PCIT_INT_START + 24);
+	u32 mask = 1 << (d->irq - SNI_PCIT_INT_START + 24);
 
 	*(volatile u32 *)SNI_PCIT_INT_REG |= mask;
 }
 
-void disable_pcit_irq(unsigned int irq)
+void disable_pcit_irq(struct irq_data *d)
 {
-	u32 mask = 1 << (irq - SNI_PCIT_INT_START + 24);
+	u32 mask = 1 << (d->irq - SNI_PCIT_INT_START + 24);
 
 	*(volatile u32 *)SNI_PCIT_INT_REG &= ~mask;
 }
 
-void end_pcit_irq(unsigned int irq)
-{
-	if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)))
-		enable_pcit_irq(irq);
-}
-
 static struct irq_chip pcit_irq_type = {
 	.name = "PCIT",
-	.ack = disable_pcit_irq,
-	.mask = disable_pcit_irq,
-	.mask_ack = disable_pcit_irq,
-	.unmask = enable_pcit_irq,
-	.end = end_pcit_irq,
+	.irq_mask = disable_pcit_irq,
+	.irq_unmask = enable_pcit_irq,
 };
 
 static void pcit_hwint1(void)
@@ -247,7 +238,7 @@ void __init sni_pcit_irq_init(void)
 
 	mips_cpu_irq_init();
 	for (i = SNI_PCIT_INT_START; i <= SNI_PCIT_INT_END; i++)
-		set_irq_chip_and_handler(i, &pcit_irq_type, handle_level_irq);
+		irq_set_chip_and_handler(i, &pcit_irq_type, handle_level_irq);
 	*(volatile u32 *)SNI_PCIT_INT_REG = 0;
 	sni_hwint = sni_pcit_hwint;
 	change_c0_status(ST0_IM, IE_IRQ1);
@@ -260,7 +251,7 @@ void __init sni_pcit_cplus_irq_init(void)
 
 	mips_cpu_irq_init();
 	for (i = SNI_PCIT_INT_START; i <= SNI_PCIT_INT_END; i++)
-		set_irq_chip_and_handler(i, &pcit_irq_type, handle_level_irq);
+		irq_set_chip_and_handler(i, &pcit_irq_type, handle_level_irq);
 	*(volatile u32 *)SNI_PCIT_INT_REG = 0x40000000;
 	sni_hwint = sni_pcit_hwint_cplus;
 	change_c0_status(ST0_IM, IE_IRQ0);
diff --git a/arch/mips/sni/rm200.c b/arch/mips/sni/rm200.c
index 0e6f42c2bbc8..a7e5a6d917b1 100644
--- a/arch/mips/sni/rm200.c
+++ b/arch/mips/sni/rm200.c
@@ -155,12 +155,11 @@ static __iomem u8 *rm200_pic_slave;
 #define cached_master_mask	(rm200_cached_irq_mask)
 #define cached_slave_mask	(rm200_cached_irq_mask >> 8)
 
-static void sni_rm200_disable_8259A_irq(unsigned int irq)
+static void sni_rm200_disable_8259A_irq(struct irq_data *d)
 {
-	unsigned int mask;
+	unsigned int mask, irq = d->irq - RM200_I8259A_IRQ_BASE;
 	unsigned long flags;
 
-	irq -= RM200_I8259A_IRQ_BASE;
 	mask = 1 << irq;
 	raw_spin_lock_irqsave(&sni_rm200_i8259A_lock, flags);
 	rm200_cached_irq_mask |= mask;
@@ -171,12 +170,11 @@ static void sni_rm200_disable_8259A_irq(unsigned int irq)
 	raw_spin_unlock_irqrestore(&sni_rm200_i8259A_lock, flags);
 }
 
-static void sni_rm200_enable_8259A_irq(unsigned int irq)
+static void sni_rm200_enable_8259A_irq(struct irq_data *d)
 {
-	unsigned int mask;
+	unsigned int mask, irq = d->irq - RM200_I8259A_IRQ_BASE;
 	unsigned long flags;
 
-	irq -= RM200_I8259A_IRQ_BASE;
 	mask = ~(1 << irq);
 	raw_spin_lock_irqsave(&sni_rm200_i8259A_lock, flags);
 	rm200_cached_irq_mask &= mask;
@@ -210,12 +208,11 @@ static inline int sni_rm200_i8259A_irq_real(unsigned int irq)
  * first, _then_ send the EOI, and the order of EOI
  * to the two 8259s is important!
  */
-void sni_rm200_mask_and_ack_8259A(unsigned int irq)
+void sni_rm200_mask_and_ack_8259A(struct irq_data *d)
 {
-	unsigned int irqmask;
+	unsigned int irqmask, irq = d->irq - RM200_I8259A_IRQ_BASE;
 	unsigned long flags;
 
-	irq -= RM200_I8259A_IRQ_BASE;
 	irqmask = 1 << irq;
 	raw_spin_lock_irqsave(&sni_rm200_i8259A_lock, flags);
 	/*
@@ -285,9 +282,9 @@ spurious_8259A_irq:
 
 static struct irq_chip sni_rm200_i8259A_chip = {
 	.name		= "RM200-XT-PIC",
-	.mask		= sni_rm200_disable_8259A_irq,
-	.unmask		= sni_rm200_enable_8259A_irq,
-	.mask_ack	= sni_rm200_mask_and_ack_8259A,
+	.irq_mask	= sni_rm200_disable_8259A_irq,
+	.irq_unmask	= sni_rm200_enable_8259A_irq,
+	.irq_mask_ack	= sni_rm200_mask_and_ack_8259A,
 };
 
 /*
@@ -416,7 +413,7 @@ void __init sni_rm200_i8259_irqs(void)
 	sni_rm200_init_8259A();
 
 	for (i = RM200_I8259A_IRQ_BASE; i < RM200_I8259A_IRQ_BASE + 16; i++)
-		set_irq_chip_and_handler(i, &sni_rm200_i8259A_chip,
+		irq_set_chip_and_handler(i, &sni_rm200_i8259A_chip,
 					 handle_level_irq);
 
 	setup_irq(RM200_I8259A_IRQ_BASE + PIC_CASCADE_IR, &sni_rm200_irq2);
@@ -429,33 +426,24 @@ void __init sni_rm200_i8259_irqs(void)
 #define SNI_RM200_INT_START  24
 #define SNI_RM200_INT_END    28
 
-static void enable_rm200_irq(unsigned int irq)
+static void enable_rm200_irq(struct irq_data *d)
 {
-	unsigned int mask = 1 << (irq - SNI_RM200_INT_START);
+	unsigned int mask = 1 << (d->irq - SNI_RM200_INT_START);
 
 	*(volatile u8 *)SNI_RM200_INT_ENA_REG &= ~mask;
 }
 
-void disable_rm200_irq(unsigned int irq)
+void disable_rm200_irq(struct irq_data *d)
 {
-	unsigned int mask = 1 << (irq - SNI_RM200_INT_START);
+	unsigned int mask = 1 << (d->irq - SNI_RM200_INT_START);
 
 	*(volatile u8 *)SNI_RM200_INT_ENA_REG |= mask;
 }
 
-void end_rm200_irq(unsigned int irq)
-{
-	if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)))
-		enable_rm200_irq(irq);
-}
-
 static struct irq_chip rm200_irq_type = {
 	.name = "RM200",
-	.ack = disable_rm200_irq,
-	.mask = disable_rm200_irq,
-	.mask_ack = disable_rm200_irq,
-	.unmask = enable_rm200_irq,
-	.end = end_rm200_irq,
+	.irq_mask = disable_rm200_irq,
+	.irq_unmask = enable_rm200_irq,
 };
 
 static void sni_rm200_hwint(void)
@@ -489,7 +477,7 @@ void __init sni_rm200_irq_init(void)
 	mips_cpu_irq_init();
 	/* Actually we've got more interrupts to handle ...  */
 	for (i = SNI_RM200_INT_START; i <= SNI_RM200_INT_END; i++)
-		set_irq_chip_and_handler(i, &rm200_irq_type, handle_level_irq);
+		irq_set_chip_and_handler(i, &rm200_irq_type, handle_level_irq);
 	sni_hwint = sni_rm200_hwint;
 	change_c0_status(ST0_IM, IE_IRQ0);
 	setup_irq(SNI_RM200_INT_START + 0, &sni_rm200_i8259A_irq);
diff --git a/arch/mips/txx9/generic/irq_tx4927.c b/arch/mips/txx9/generic/irq_tx4927.c
index e1828e8bcaef..7e3ac5782da4 100644
--- a/arch/mips/txx9/generic/irq_tx4927.c
+++ b/arch/mips/txx9/generic/irq_tx4927.c
@@ -35,7 +35,7 @@ void __init tx4927_irq_init(void)
 
 	mips_cpu_irq_init();
 	txx9_irq_init(TX4927_IRC_REG & 0xfffffffffULL);
-	set_irq_chained_handler(MIPS_CPU_IRQ_BASE + TX4927_IRC_INT,
+	irq_set_chained_handler(MIPS_CPU_IRQ_BASE + TX4927_IRC_INT,
 				handle_simple_irq);
 	/* raise priority for errors, timers, SIO */
 	txx9_irq_set_pri(TX4927_IR_ECCERR, 7);
diff --git a/arch/mips/txx9/generic/irq_tx4938.c b/arch/mips/txx9/generic/irq_tx4938.c
index a6e6e805097a..aace85653329 100644
--- a/arch/mips/txx9/generic/irq_tx4938.c
+++ b/arch/mips/txx9/generic/irq_tx4938.c
@@ -23,7 +23,7 @@ void __init tx4938_irq_init(void)
 
 	mips_cpu_irq_init();
 	txx9_irq_init(TX4938_IRC_REG & 0xfffffffffULL);
-	set_irq_chained_handler(MIPS_CPU_IRQ_BASE + TX4938_IRC_INT,
+	irq_set_chained_handler(MIPS_CPU_IRQ_BASE + TX4938_IRC_INT,
 				handle_simple_irq);
 	/* raise priority for errors, timers, SIO */
 	txx9_irq_set_pri(TX4938_IR_ECCERR, 7);
diff --git a/arch/mips/txx9/generic/irq_tx4939.c b/arch/mips/txx9/generic/irq_tx4939.c
index 3886ad77cbad..6b067dbd2ae1 100644
--- a/arch/mips/txx9/generic/irq_tx4939.c
+++ b/arch/mips/txx9/generic/irq_tx4939.c
@@ -50,9 +50,9 @@ static struct {
 	unsigned char mode;
 } tx4939irq[TX4939_NUM_IR] __read_mostly;
 
-static void tx4939_irq_unmask(unsigned int irq)
+static void tx4939_irq_unmask(struct irq_data *d)
 {
-	unsigned int irq_nr = irq - TXX9_IRQ_BASE;
+	unsigned int irq_nr = d->irq - TXX9_IRQ_BASE;
 	u32 __iomem *lvlp;
 	int ofs;
 	if (irq_nr < 32) {
@@ -68,9 +68,9 @@ static void tx4939_irq_unmask(unsigned int irq)
 		     lvlp);
 }
 
-static inline void tx4939_irq_mask(unsigned int irq)
+static inline void tx4939_irq_mask(struct irq_data *d)
 {
-	unsigned int irq_nr = irq - TXX9_IRQ_BASE;
+	unsigned int irq_nr = d->irq - TXX9_IRQ_BASE;
 	u32 __iomem *lvlp;
 	int ofs;
 	if (irq_nr < 32) {
@@ -87,11 +87,11 @@ static inline void tx4939_irq_mask(unsigned int irq)
 	mmiowb();
 }
 
-static void tx4939_irq_mask_ack(unsigned int irq)
+static void tx4939_irq_mask_ack(struct irq_data *d)
 {
-	unsigned int irq_nr = irq - TXX9_IRQ_BASE;
+	unsigned int irq_nr = d->irq - TXX9_IRQ_BASE;
 
-	tx4939_irq_mask(irq);
+	tx4939_irq_mask(d);
 	if (TXx9_IRCR_EDGE(tx4939irq[irq_nr].mode)) {
 		irq_nr--;
 		/* clear edge detection */
@@ -101,9 +101,9 @@ static void tx4939_irq_mask_ack(unsigned int irq)
 	}
 }
 
-static int tx4939_irq_set_type(unsigned int irq, unsigned int flow_type)
+static int tx4939_irq_set_type(struct irq_data *d, unsigned int flow_type)
 {
-	unsigned int irq_nr = irq - TXX9_IRQ_BASE;
+	unsigned int irq_nr = d->irq - TXX9_IRQ_BASE;
 	u32 cr;
 	u32 __iomem *crp;
 	int ofs;
@@ -145,11 +145,11 @@ static int tx4939_irq_set_type(unsigned int irq, unsigned int flow_type)
 
 static struct irq_chip tx4939_irq_chip = {
 	.name		= "TX4939",
-	.ack		= tx4939_irq_mask_ack,
-	.mask		= tx4939_irq_mask,
-	.mask_ack	= tx4939_irq_mask_ack,
-	.unmask		= tx4939_irq_unmask,
-	.set_type	= tx4939_irq_set_type,
+	.irq_ack	= tx4939_irq_mask_ack,
+	.irq_mask	= tx4939_irq_mask,
+	.irq_mask_ack	= tx4939_irq_mask_ack,
+	.irq_unmask	= tx4939_irq_unmask,
+	.irq_set_type	= tx4939_irq_set_type,
 };
 
 static int tx4939_irq_set_pri(int irc_irq, int new_pri)
@@ -176,8 +176,8 @@ void __init tx4939_irq_init(void)
 	for (i = 1; i < TX4939_NUM_IR; i++) {
 		tx4939irq[i].level = 4; /* middle level */
 		tx4939irq[i].mode = TXx9_IRCR_LOW;
-		set_irq_chip_and_handler(TXX9_IRQ_BASE + i,
-					 &tx4939_irq_chip, handle_level_irq);
+		irq_set_chip_and_handler(TXX9_IRQ_BASE + i, &tx4939_irq_chip,
+					 handle_level_irq);
 	}
 
 	/* mask all IRC interrupts */
@@ -193,7 +193,7 @@ void __init tx4939_irq_init(void)
 	__raw_writel(TXx9_IRCER_ICE, &tx4939_ircptr->den.r);
 	__raw_writel(irc_elevel, &tx4939_ircptr->msk.r);
 
-	set_irq_chained_handler(MIPS_CPU_IRQ_BASE + TX4939_IRC_INT,
+	irq_set_chained_handler(MIPS_CPU_IRQ_BASE + TX4939_IRC_INT,
 				handle_simple_irq);
 
 	/* raise priority for errors, timers, sio */
diff --git a/arch/mips/txx9/jmr3927/irq.c b/arch/mips/txx9/jmr3927/irq.c
index 0a7f8e3b9fd7..c22c859a2c49 100644
--- a/arch/mips/txx9/jmr3927/irq.c
+++ b/arch/mips/txx9/jmr3927/irq.c
@@ -47,20 +47,20 @@
  * CP0_STATUS is a thread's resource (saved/restored on context switch).
  * So disable_irq/enable_irq MUST handle IOC/IRC registers.
  */
-static void mask_irq_ioc(unsigned int irq)
+static void mask_irq_ioc(struct irq_data *d)
 {
 	/* 0: mask */
-	unsigned int irq_nr = irq - JMR3927_IRQ_IOC;
+	unsigned int irq_nr = d->irq - JMR3927_IRQ_IOC;
 	unsigned char imask = jmr3927_ioc_reg_in(JMR3927_IOC_INTM_ADDR);
 	unsigned int bit = 1 << irq_nr;
 	jmr3927_ioc_reg_out(imask & ~bit, JMR3927_IOC_INTM_ADDR);
 	/* flush write buffer */
 	(void)jmr3927_ioc_reg_in(JMR3927_IOC_REV_ADDR);
 }
-static void unmask_irq_ioc(unsigned int irq)
+static void unmask_irq_ioc(struct irq_data *d)
 {
 	/* 0: mask */
-	unsigned int irq_nr = irq - JMR3927_IRQ_IOC;
+	unsigned int irq_nr = d->irq - JMR3927_IRQ_IOC;
 	unsigned char imask = jmr3927_ioc_reg_in(JMR3927_IOC_INTM_ADDR);
 	unsigned int bit = 1 << irq_nr;
 	jmr3927_ioc_reg_out(imask | bit, JMR3927_IOC_INTM_ADDR);
@@ -95,10 +95,8 @@ static int jmr3927_irq_dispatch(int pending)
 
 static struct irq_chip jmr3927_irq_ioc = {
 	.name = "jmr3927_ioc",
-	.ack = mask_irq_ioc,
-	.mask = mask_irq_ioc,
-	.mask_ack = mask_irq_ioc,
-	.unmask = unmask_irq_ioc,
+	.irq_mask = mask_irq_ioc,
+	.irq_unmask = unmask_irq_ioc,
 };
 
 void __init jmr3927_irq_setup(void)
@@ -122,8 +120,9 @@ void __init jmr3927_irq_setup(void)
 
 	tx3927_irq_init();
 	for (i = JMR3927_IRQ_IOC; i < JMR3927_IRQ_IOC + JMR3927_NR_IRQ_IOC; i++)
-		set_irq_chip_and_handler(i, &jmr3927_irq_ioc, handle_level_irq);
+		irq_set_chip_and_handler(i, &jmr3927_irq_ioc,
+					 handle_level_irq);
 
 	/* setup IOC interrupt 1 (PCI, MODEM) */
-	set_irq_chained_handler(JMR3927_IRQ_IOCINT, handle_simple_irq);
+	irq_set_chained_handler(JMR3927_IRQ_IOCINT, handle_simple_irq);
 }
diff --git a/arch/mips/txx9/rbtx4927/irq.c b/arch/mips/txx9/rbtx4927/irq.c
index c4b54d20efd3..6c22c496090b 100644
--- a/arch/mips/txx9/rbtx4927/irq.c
+++ b/arch/mips/txx9/rbtx4927/irq.c
@@ -117,18 +117,6 @@
 #include <asm/txx9/generic.h>
 #include <asm/txx9/rbtx4927.h>
 
-static void toshiba_rbtx4927_irq_ioc_enable(unsigned int irq);
-static void toshiba_rbtx4927_irq_ioc_disable(unsigned int irq);
-
-#define TOSHIBA_RBTX4927_IOC_NAME "RBTX4927-IOC"
-static struct irq_chip toshiba_rbtx4927_irq_ioc_type = {
-	.name = TOSHIBA_RBTX4927_IOC_NAME,
-	.ack = toshiba_rbtx4927_irq_ioc_disable,
-	.mask = toshiba_rbtx4927_irq_ioc_disable,
-	.mask_ack = toshiba_rbtx4927_irq_ioc_disable,
-	.unmask = toshiba_rbtx4927_irq_ioc_enable,
-};
-
 static int toshiba_rbtx4927_irq_nested(int sw_irq)
 {
 	u8 level3;
@@ -139,41 +127,47 @@ static int toshiba_rbtx4927_irq_nested(int sw_irq)
 	return RBTX4927_IRQ_IOC + __fls8(level3);
 }
 
-static void __init toshiba_rbtx4927_irq_ioc_init(void)
-{
-	int i;
-
-	/* mask all IOC interrupts */
-	writeb(0, rbtx4927_imask_addr);
-	/* clear SoftInt interrupts */
-	writeb(0, rbtx4927_softint_addr);
-
-	for (i = RBTX4927_IRQ_IOC;
-	     i < RBTX4927_IRQ_IOC + RBTX4927_NR_IRQ_IOC; i++)
-		set_irq_chip_and_handler(i, &toshiba_rbtx4927_irq_ioc_type,
-					 handle_level_irq);
-	set_irq_chained_handler(RBTX4927_IRQ_IOCINT, handle_simple_irq);
-}
-
-static void toshiba_rbtx4927_irq_ioc_enable(unsigned int irq)
+static void toshiba_rbtx4927_irq_ioc_enable(struct irq_data *d)
 {
 	unsigned char v;
 
 	v = readb(rbtx4927_imask_addr);
-	v |= (1 << (irq - RBTX4927_IRQ_IOC));
+	v |= (1 << (d->irq - RBTX4927_IRQ_IOC));
 	writeb(v, rbtx4927_imask_addr);
 }
 
-static void toshiba_rbtx4927_irq_ioc_disable(unsigned int irq)
+static void toshiba_rbtx4927_irq_ioc_disable(struct irq_data *d)
 {
 	unsigned char v;
 
 	v = readb(rbtx4927_imask_addr);
-	v &= ~(1 << (irq - RBTX4927_IRQ_IOC));
+	v &= ~(1 << (d->irq - RBTX4927_IRQ_IOC));
 	writeb(v, rbtx4927_imask_addr);
 	mmiowb();
 }
 
+#define TOSHIBA_RBTX4927_IOC_NAME "RBTX4927-IOC"
+static struct irq_chip toshiba_rbtx4927_irq_ioc_type = {
+	.name = TOSHIBA_RBTX4927_IOC_NAME,
+	.irq_mask = toshiba_rbtx4927_irq_ioc_disable,
+	.irq_unmask = toshiba_rbtx4927_irq_ioc_enable,
+};
+
+static void __init toshiba_rbtx4927_irq_ioc_init(void)
+{
+	int i;
+
+	/* mask all IOC interrupts */
+	writeb(0, rbtx4927_imask_addr);
+	/* clear SoftInt interrupts */
+	writeb(0, rbtx4927_softint_addr);
+
+	for (i = RBTX4927_IRQ_IOC;
+	     i < RBTX4927_IRQ_IOC + RBTX4927_NR_IRQ_IOC; i++)
+		irq_set_chip_and_handler(i, &toshiba_rbtx4927_irq_ioc_type,
+					 handle_level_irq);
+	irq_set_chained_handler(RBTX4927_IRQ_IOCINT, handle_simple_irq);
+}
 
 static int rbtx4927_irq_dispatch(int pending)
 {
@@ -200,5 +194,5 @@ void __init rbtx4927_irq_setup(void)
 	tx4927_irq_init();
 	toshiba_rbtx4927_irq_ioc_init();
 	/* Onboard 10M Ether: High Active */
-	set_irq_type(RBTX4927_RTL_8019_IRQ, IRQF_TRIGGER_HIGH);
+	irq_set_irq_type(RBTX4927_RTL_8019_IRQ, IRQF_TRIGGER_HIGH);
 }
diff --git a/arch/mips/txx9/rbtx4938/irq.c b/arch/mips/txx9/rbtx4938/irq.c
index 67a73a8065ec..58cd7a9272cc 100644
--- a/arch/mips/txx9/rbtx4938/irq.c
+++ b/arch/mips/txx9/rbtx4938/irq.c
@@ -69,18 +69,6 @@
 #include <asm/txx9/generic.h>
 #include <asm/txx9/rbtx4938.h>
 
-static void toshiba_rbtx4938_irq_ioc_enable(unsigned int irq);
-static void toshiba_rbtx4938_irq_ioc_disable(unsigned int irq);
-
-#define TOSHIBA_RBTX4938_IOC_NAME "RBTX4938-IOC"
-static struct irq_chip toshiba_rbtx4938_irq_ioc_type = {
-	.name = TOSHIBA_RBTX4938_IOC_NAME,
-	.ack = toshiba_rbtx4938_irq_ioc_disable,
-	.mask = toshiba_rbtx4938_irq_ioc_disable,
-	.mask_ack = toshiba_rbtx4938_irq_ioc_disable,
-	.unmask = toshiba_rbtx4938_irq_ioc_enable,
-};
-
 static int toshiba_rbtx4938_irq_nested(int sw_irq)
 {
 	u8 level3;
@@ -92,41 +80,33 @@ static int toshiba_rbtx4938_irq_nested(int sw_irq)
 	return RBTX4938_IRQ_IOC + __fls8(level3);
 }
 
-static void __init
-toshiba_rbtx4938_irq_ioc_init(void)
-{
-	int i;
-
-	for (i = RBTX4938_IRQ_IOC;
-	     i < RBTX4938_IRQ_IOC + RBTX4938_NR_IRQ_IOC; i++)
-		set_irq_chip_and_handler(i, &toshiba_rbtx4938_irq_ioc_type,
-					 handle_level_irq);
-
-	set_irq_chained_handler(RBTX4938_IRQ_IOCINT, handle_simple_irq);
-}
-
-static void
-toshiba_rbtx4938_irq_ioc_enable(unsigned int irq)
+static void toshiba_rbtx4938_irq_ioc_enable(struct irq_data *d)
 {
 	unsigned char v;
 
 	v = readb(rbtx4938_imask_addr);
-	v |= (1 << (irq - RBTX4938_IRQ_IOC));
+	v |= (1 << (d->irq - RBTX4938_IRQ_IOC));
 	writeb(v, rbtx4938_imask_addr);
 	mmiowb();
 }
 
-static void
-toshiba_rbtx4938_irq_ioc_disable(unsigned int irq)
+static void toshiba_rbtx4938_irq_ioc_disable(struct irq_data *d)
 {
 	unsigned char v;
 
 	v = readb(rbtx4938_imask_addr);
-	v &= ~(1 << (irq - RBTX4938_IRQ_IOC));
+	v &= ~(1 << (d->irq - RBTX4938_IRQ_IOC));
 	writeb(v, rbtx4938_imask_addr);
 	mmiowb();
 }
 
+#define TOSHIBA_RBTX4938_IOC_NAME "RBTX4938-IOC"
+static struct irq_chip toshiba_rbtx4938_irq_ioc_type = {
+	.name = TOSHIBA_RBTX4938_IOC_NAME,
+	.irq_mask = toshiba_rbtx4938_irq_ioc_disable,
+	.irq_unmask = toshiba_rbtx4938_irq_ioc_enable,
+};
+
 static int rbtx4938_irq_dispatch(int pending)
 {
 	int irq;
@@ -146,6 +126,18 @@ static int rbtx4938_irq_dispatch(int pending)
 	return irq;
 }
 
+static void __init toshiba_rbtx4938_irq_ioc_init(void)
+{
+	int i;
+
+	for (i = RBTX4938_IRQ_IOC;
+	     i < RBTX4938_IRQ_IOC + RBTX4938_NR_IRQ_IOC; i++)
+		irq_set_chip_and_handler(i, &toshiba_rbtx4938_irq_ioc_type,
+					 handle_level_irq);
+
+	irq_set_chained_handler(RBTX4938_IRQ_IOCINT, handle_simple_irq);
+}
+
 void __init rbtx4938_irq_setup(void)
 {
 	txx9_irq_dispatch = rbtx4938_irq_dispatch;
@@ -161,5 +153,5 @@ void __init rbtx4938_irq_setup(void)
 	tx4938_irq_init();
 	toshiba_rbtx4938_irq_ioc_init();
 	/* Onboard 10M Ether: High Active */
-	set_irq_type(RBTX4938_IRQ_ETHER, IRQF_TRIGGER_HIGH);
+	irq_set_irq_type(RBTX4938_IRQ_ETHER, IRQF_TRIGGER_HIGH);
 }
diff --git a/arch/mips/txx9/rbtx4939/irq.c b/arch/mips/txx9/rbtx4939/irq.c
index 57fa740a7205..69a80616f0c9 100644
--- a/arch/mips/txx9/rbtx4939/irq.c
+++ b/arch/mips/txx9/rbtx4939/irq.c
@@ -19,16 +19,16 @@
  * RBTX4939 IOC controller definition
  */
 
-static void rbtx4939_ioc_irq_unmask(unsigned int irq)
+static void rbtx4939_ioc_irq_unmask(struct irq_data *d)
 {
-	int ioc_nr = irq - RBTX4939_IRQ_IOC;
+	int ioc_nr = d->irq - RBTX4939_IRQ_IOC;
 
 	writeb(readb(rbtx4939_ien_addr) | (1 << ioc_nr), rbtx4939_ien_addr);
 }
 
-static void rbtx4939_ioc_irq_mask(unsigned int irq)
+static void rbtx4939_ioc_irq_mask(struct irq_data *d)
 {
-	int ioc_nr = irq - RBTX4939_IRQ_IOC;
+	int ioc_nr = d->irq - RBTX4939_IRQ_IOC;
 
 	writeb(readb(rbtx4939_ien_addr) & ~(1 << ioc_nr), rbtx4939_ien_addr);
 	mmiowb();
@@ -36,10 +36,8 @@ static void rbtx4939_ioc_irq_mask(unsigned int irq)
 
 static struct irq_chip rbtx4939_ioc_irq_chip = {
 	.name		= "IOC",
-	.ack		= rbtx4939_ioc_irq_mask,
-	.mask		= rbtx4939_ioc_irq_mask,
-	.mask_ack	= rbtx4939_ioc_irq_mask,
-	.unmask		= rbtx4939_ioc_irq_unmask,
+	.irq_mask	= rbtx4939_ioc_irq_mask,
+	.irq_unmask	= rbtx4939_ioc_irq_unmask,
 };
 
 
@@ -90,8 +88,8 @@ void __init rbtx4939_irq_setup(void)
 	tx4939_irq_init();
 	for (i = RBTX4939_IRQ_IOC;
 	     i < RBTX4939_IRQ_IOC + RBTX4939_NR_IRQ_IOC; i++)
-		set_irq_chip_and_handler(i, &rbtx4939_ioc_irq_chip,
+		irq_set_chip_and_handler(i, &rbtx4939_ioc_irq_chip,
 					 handle_level_irq);
 
-	set_irq_chained_handler(RBTX4939_IRQ_IOCINT, handle_simple_irq);
+	irq_set_chained_handler(RBTX4939_IRQ_IOCINT, handle_simple_irq);
 }
diff --git a/arch/mips/vr41xx/common/icu.c b/arch/mips/vr41xx/common/icu.c
index 6153b6a05ccf..a39ef3207d71 100644
--- a/arch/mips/vr41xx/common/icu.c
+++ b/arch/mips/vr41xx/common/icu.c
@@ -154,7 +154,7 @@ static inline uint16_t icu2_clear(uint8_t offset, uint16_t clear)
 
 void vr41xx_enable_piuint(uint16_t mask)
 {
-	struct irq_desc *desc = irq_desc + PIU_IRQ;
+	struct irq_desc *desc = irq_to_desc(PIU_IRQ);
 	unsigned long flags;
 
 	if (current_cpu_type() == CPU_VR4111 ||
@@ -169,7 +169,7 @@ EXPORT_SYMBOL(vr41xx_enable_piuint);
 
 void vr41xx_disable_piuint(uint16_t mask)
 {
-	struct irq_desc *desc = irq_desc + PIU_IRQ;
+	struct irq_desc *desc = irq_to_desc(PIU_IRQ);
 	unsigned long flags;
 
 	if (current_cpu_type() == CPU_VR4111 ||
@@ -184,7 +184,7 @@ EXPORT_SYMBOL(vr41xx_disable_piuint);
 
 void vr41xx_enable_aiuint(uint16_t mask)
 {
-	struct irq_desc *desc = irq_desc + AIU_IRQ;
+	struct irq_desc *desc = irq_to_desc(AIU_IRQ);
 	unsigned long flags;
 
 	if (current_cpu_type() == CPU_VR4111 ||
@@ -199,7 +199,7 @@ EXPORT_SYMBOL(vr41xx_enable_aiuint);
 
 void vr41xx_disable_aiuint(uint16_t mask)
 {
-	struct irq_desc *desc = irq_desc + AIU_IRQ;
+	struct irq_desc *desc = irq_to_desc(AIU_IRQ);
 	unsigned long flags;
 
 	if (current_cpu_type() == CPU_VR4111 ||
@@ -214,7 +214,7 @@ EXPORT_SYMBOL(vr41xx_disable_aiuint);
 
 void vr41xx_enable_kiuint(uint16_t mask)
 {
-	struct irq_desc *desc = irq_desc + KIU_IRQ;
+	struct irq_desc *desc = irq_to_desc(KIU_IRQ);
 	unsigned long flags;
 
 	if (current_cpu_type() == CPU_VR4111 ||
@@ -229,7 +229,7 @@ EXPORT_SYMBOL(vr41xx_enable_kiuint);
 
 void vr41xx_disable_kiuint(uint16_t mask)
 {
-	struct irq_desc *desc = irq_desc + KIU_IRQ;
+	struct irq_desc *desc = irq_to_desc(KIU_IRQ);
 	unsigned long flags;
 
 	if (current_cpu_type() == CPU_VR4111 ||
@@ -244,7 +244,7 @@ EXPORT_SYMBOL(vr41xx_disable_kiuint);
 
 void vr41xx_enable_macint(uint16_t mask)
 {
-	struct irq_desc *desc = irq_desc + ETHERNET_IRQ;
+	struct irq_desc *desc = irq_to_desc(ETHERNET_IRQ);
 	unsigned long flags;
 
 	raw_spin_lock_irqsave(&desc->lock, flags);
@@ -256,7 +256,7 @@ EXPORT_SYMBOL(vr41xx_enable_macint);
 
 void vr41xx_disable_macint(uint16_t mask)
 {
-	struct irq_desc *desc = irq_desc + ETHERNET_IRQ;
+	struct irq_desc *desc = irq_to_desc(ETHERNET_IRQ);
 	unsigned long flags;
 
 	raw_spin_lock_irqsave(&desc->lock, flags);
@@ -268,7 +268,7 @@ EXPORT_SYMBOL(vr41xx_disable_macint);
 
 void vr41xx_enable_dsiuint(uint16_t mask)
 {
-	struct irq_desc *desc = irq_desc + DSIU_IRQ;
+	struct irq_desc *desc = irq_to_desc(DSIU_IRQ);
 	unsigned long flags;
 
 	raw_spin_lock_irqsave(&desc->lock, flags);
@@ -280,7 +280,7 @@ EXPORT_SYMBOL(vr41xx_enable_dsiuint);
 
 void vr41xx_disable_dsiuint(uint16_t mask)
 {
-	struct irq_desc *desc = irq_desc + DSIU_IRQ;
+	struct irq_desc *desc = irq_to_desc(DSIU_IRQ);
 	unsigned long flags;
 
 	raw_spin_lock_irqsave(&desc->lock, flags);
@@ -292,7 +292,7 @@ EXPORT_SYMBOL(vr41xx_disable_dsiuint);
 
 void vr41xx_enable_firint(uint16_t mask)
 {
-	struct irq_desc *desc = irq_desc + FIR_IRQ;
+	struct irq_desc *desc = irq_to_desc(FIR_IRQ);
 	unsigned long flags;
 
 	raw_spin_lock_irqsave(&desc->lock, flags);
@@ -304,7 +304,7 @@ EXPORT_SYMBOL(vr41xx_enable_firint);
 
 void vr41xx_disable_firint(uint16_t mask)
 {
-	struct irq_desc *desc = irq_desc + FIR_IRQ;
+	struct irq_desc *desc = irq_to_desc(FIR_IRQ);
 	unsigned long flags;
 
 	raw_spin_lock_irqsave(&desc->lock, flags);
@@ -316,7 +316,7 @@ EXPORT_SYMBOL(vr41xx_disable_firint);
 
 void vr41xx_enable_pciint(void)
 {
-	struct irq_desc *desc = irq_desc + PCI_IRQ;
+	struct irq_desc *desc = irq_to_desc(PCI_IRQ);
 	unsigned long flags;
 
 	if (current_cpu_type() == CPU_VR4122 ||
@@ -332,7 +332,7 @@ EXPORT_SYMBOL(vr41xx_enable_pciint);
 
 void vr41xx_disable_pciint(void)
 {
-	struct irq_desc *desc = irq_desc + PCI_IRQ;
+	struct irq_desc *desc = irq_to_desc(PCI_IRQ);
 	unsigned long flags;
 
 	if (current_cpu_type() == CPU_VR4122 ||
@@ -348,7 +348,7 @@ EXPORT_SYMBOL(vr41xx_disable_pciint);
 
 void vr41xx_enable_scuint(void)
 {
-	struct irq_desc *desc = irq_desc + SCU_IRQ;
+	struct irq_desc *desc = irq_to_desc(SCU_IRQ);
 	unsigned long flags;
 
 	if (current_cpu_type() == CPU_VR4122 ||
@@ -364,7 +364,7 @@ EXPORT_SYMBOL(vr41xx_enable_scuint);
 
 void vr41xx_disable_scuint(void)
 {
-	struct irq_desc *desc = irq_desc + SCU_IRQ;
+	struct irq_desc *desc = irq_to_desc(SCU_IRQ);
 	unsigned long flags;
 
 	if (current_cpu_type() == CPU_VR4122 ||
@@ -380,7 +380,7 @@ EXPORT_SYMBOL(vr41xx_disable_scuint);
 
 void vr41xx_enable_csiint(uint16_t mask)
 {
-	struct irq_desc *desc = irq_desc + CSI_IRQ;
+	struct irq_desc *desc = irq_to_desc(CSI_IRQ);
 	unsigned long flags;
 
 	if (current_cpu_type() == CPU_VR4122 ||
@@ -396,7 +396,7 @@ EXPORT_SYMBOL(vr41xx_enable_csiint);
 
 void vr41xx_disable_csiint(uint16_t mask)
 {
-	struct irq_desc *desc = irq_desc + CSI_IRQ;
+	struct irq_desc *desc = irq_to_desc(CSI_IRQ);
 	unsigned long flags;
 
 	if (current_cpu_type() == CPU_VR4122 ||
@@ -412,7 +412,7 @@ EXPORT_SYMBOL(vr41xx_disable_csiint);
 
 void vr41xx_enable_bcuint(void)
 {
-	struct irq_desc *desc = irq_desc + BCU_IRQ;
+	struct irq_desc *desc = irq_to_desc(BCU_IRQ);
 	unsigned long flags;
 
 	if (current_cpu_type() == CPU_VR4122 ||
@@ -428,7 +428,7 @@ EXPORT_SYMBOL(vr41xx_enable_bcuint);
 
 void vr41xx_disable_bcuint(void)
 {
-	struct irq_desc *desc = irq_desc + BCU_IRQ;
+	struct irq_desc *desc = irq_to_desc(BCU_IRQ);
 	unsigned long flags;
 
 	if (current_cpu_type() == CPU_VR4122 ||
@@ -442,45 +442,41 @@ void vr41xx_disable_bcuint(void)
 
 EXPORT_SYMBOL(vr41xx_disable_bcuint);
 
-static void disable_sysint1_irq(unsigned int irq)
+static void disable_sysint1_irq(struct irq_data *d)
 {
-	icu1_clear(MSYSINT1REG, 1 << SYSINT1_IRQ_TO_PIN(irq));
+	icu1_clear(MSYSINT1REG, 1 << SYSINT1_IRQ_TO_PIN(d->irq));
 }
 
-static void enable_sysint1_irq(unsigned int irq)
+static void enable_sysint1_irq(struct irq_data *d)
 {
-	icu1_set(MSYSINT1REG, 1 << SYSINT1_IRQ_TO_PIN(irq));
+	icu1_set(MSYSINT1REG, 1 << SYSINT1_IRQ_TO_PIN(d->irq));
 }
 
 static struct irq_chip sysint1_irq_type = {
 	.name		= "SYSINT1",
-	.ack		= disable_sysint1_irq,
-	.mask		= disable_sysint1_irq,
-	.mask_ack	= disable_sysint1_irq,
-	.unmask		= enable_sysint1_irq,
+	.irq_mask	= disable_sysint1_irq,
+	.irq_unmask	= enable_sysint1_irq,
 };
 
-static void disable_sysint2_irq(unsigned int irq)
+static void disable_sysint2_irq(struct irq_data *d)
 {
-	icu2_clear(MSYSINT2REG, 1 << SYSINT2_IRQ_TO_PIN(irq));
+	icu2_clear(MSYSINT2REG, 1 << SYSINT2_IRQ_TO_PIN(d->irq));
 }
 
-static void enable_sysint2_irq(unsigned int irq)
+static void enable_sysint2_irq(struct irq_data *d)
 {
-	icu2_set(MSYSINT2REG, 1 << SYSINT2_IRQ_TO_PIN(irq));
+	icu2_set(MSYSINT2REG, 1 << SYSINT2_IRQ_TO_PIN(d->irq));
 }
 
 static struct irq_chip sysint2_irq_type = {
 	.name		= "SYSINT2",
-	.ack		= disable_sysint2_irq,
-	.mask		= disable_sysint2_irq,
-	.mask_ack	= disable_sysint2_irq,
-	.unmask		= enable_sysint2_irq,
+	.irq_mask	= disable_sysint2_irq,
+	.irq_unmask	= enable_sysint2_irq,
 };
 
 static inline int set_sysint1_assign(unsigned int irq, unsigned char assign)
 {
-	struct irq_desc *desc = irq_desc + irq;
+	struct irq_desc *desc = irq_to_desc(irq);
 	uint16_t intassign0, intassign1;
 	unsigned int pin;
 
@@ -540,7 +536,7 @@ static inline int set_sysint1_assign(unsigned int irq, unsigned char assign)
 
 static inline int set_sysint2_assign(unsigned int irq, unsigned char assign)
 {
-	struct irq_desc *desc = irq_desc + irq;
+	struct irq_desc *desc = irq_to_desc(irq);
 	uint16_t intassign2, intassign3;
 	unsigned int pin;
 
@@ -714,11 +710,11 @@ static int __init vr41xx_icu_init(void)
 	icu2_write(MGIUINTHREG, 0xffff);
 
 	for (i = SYSINT1_IRQ_BASE; i <= SYSINT1_IRQ_LAST; i++)
-		set_irq_chip_and_handler(i, &sysint1_irq_type,
+		irq_set_chip_and_handler(i, &sysint1_irq_type,
 					 handle_level_irq);
 
 	for (i = SYSINT2_IRQ_BASE; i <= SYSINT2_IRQ_LAST; i++)
-		set_irq_chip_and_handler(i, &sysint2_irq_type,
+		irq_set_chip_and_handler(i, &sysint2_irq_type,
 					 handle_level_irq);
 
 	cascade_irq(INT0_IRQ, icu_get_irq);
diff --git a/arch/mips/vr41xx/common/irq.c b/arch/mips/vr41xx/common/irq.c
index 0975eb72d385..70a3b85f3757 100644
--- a/arch/mips/vr41xx/common/irq.c
+++ b/arch/mips/vr41xx/common/irq.c
@@ -62,7 +62,6 @@ EXPORT_SYMBOL_GPL(cascade_irq);
 static void irq_dispatch(unsigned int irq)
 {
 	irq_cascade_t *cascade;
-	struct irq_desc *desc;
 
 	if (irq >= NR_IRQS) {
 		atomic_inc(&irq_err_count);
@@ -71,14 +70,16 @@ static void irq_dispatch(unsigned int irq)
 
 	cascade = irq_cascade + irq;
 	if (cascade->get_irq != NULL) {
-		unsigned int source_irq = irq;
+		struct irq_desc *desc = irq_to_desc(irq);
+		struct irq_data *idata = irq_desc_get_irq_data(desc);
+		struct irq_chip *chip = irq_desc_get_chip(desc);
 		int ret;
-		desc = irq_desc + source_irq;
-		if (desc->chip->mask_ack)
-			desc->chip->mask_ack(source_irq);
+
+		if (chip->irq_mask_ack)
+			chip->irq_mask_ack(idata);
 		else {
-			desc->chip->mask(source_irq);
-			desc->chip->ack(source_irq);
+			chip->irq_mask(idata);
+			chip->irq_ack(idata);
 		}
 		ret = cascade->get_irq(irq);
 		irq = ret;
@@ -86,8 +87,8 @@ static void irq_dispatch(unsigned int irq)
 			atomic_inc(&irq_err_count);
 		else
 			irq_dispatch(irq);
-		if (!(desc->status & IRQ_DISABLED) && desc->chip->unmask)
-			desc->chip->unmask(source_irq);
+		if (!irqd_irq_disabled(idata) && chip->irq_unmask)
+			chip->irq_unmask(idata);
 	} else
 		do_IRQ(irq);
 }
diff --git a/arch/mn10300/Kconfig b/arch/mn10300/Kconfig
index d8ab97a73db2..feaf09cc8632 100644
--- a/arch/mn10300/Kconfig
+++ b/arch/mn10300/Kconfig
@@ -2,7 +2,7 @@ config MN10300
 	def_bool y
 	select HAVE_OPROFILE
 	select HAVE_GENERIC_HARDIRQS
-	select GENERIC_HARDIRQS_NO_DEPRECATED
+	select GENERIC_IRQ_SHOW
 	select HAVE_ARCH_TRACEHOOK
 	select HAVE_ARCH_KGDB
 
diff --git a/arch/mn10300/include/asm/cpu-regs.h b/arch/mn10300/include/asm/cpu-regs.h
index 90ed4a365c97..c54effae2202 100644
--- a/arch/mn10300/include/asm/cpu-regs.h
+++ b/arch/mn10300/include/asm/cpu-regs.h
@@ -49,7 +49,7 @@ asm(" .am33_2\n");
 #define EPSW_IM_6		0x00000600	/* interrupt mode 6 */
 #define EPSW_IM_7		0x00000700	/* interrupt mode 7 */
 #define EPSW_IE			0x00000800	/* interrupt enable */
-#define EPSW_S			0x00003000	/* software auxilliary bits */
+#define EPSW_S			0x00003000	/* software auxiliary bits */
 #define EPSW_T			0x00008000	/* trace enable */
 #define EPSW_nSL		0x00010000	/* not supervisor level */
 #define EPSW_NMID		0x00020000	/* nonmaskable interrupt disable */
diff --git a/arch/mn10300/kernel/irq.c b/arch/mn10300/kernel/irq.c
index 5f7fc3eb45e6..86af0d7d0771 100644
--- a/arch/mn10300/kernel/irq.c
+++ b/arch/mn10300/kernel/irq.c
@@ -263,7 +263,7 @@ void set_intr_level(int irq, u16 level)
  */
 void mn10300_set_lateack_irq_type(int irq)
 {
-	set_irq_chip_and_handler(irq, &mn10300_cpu_pic_level,
+	irq_set_chip_and_handler(irq, &mn10300_cpu_pic_level,
 				 handle_level_irq);
 }
 
@@ -275,12 +275,12 @@ void __init init_IRQ(void)
 	int irq;
 
 	for (irq = 0; irq < NR_IRQS; irq++)
-		if (get_irq_chip(irq) == &no_irq_chip)
+		if (irq_get_chip(irq) == &no_irq_chip)
 			/* due to the PIC latching interrupt requests, even
 			 * when the IRQ is disabled, IRQ_PENDING is superfluous
 			 * and we can use handle_level_irq() for edge-triggered
 			 * interrupts */
-			set_irq_chip_and_handler(irq, &mn10300_cpu_pic_edge,
+			irq_set_chip_and_handler(irq, &mn10300_cpu_pic_edge,
 						 handle_level_irq);
 
 	unit_init_IRQ();
@@ -335,91 +335,42 @@ asmlinkage void do_IRQ(void)
 /*
  * Display interrupt management information through /proc/interrupts
  */
-int show_interrupts(struct seq_file *p, void *v)
+int arch_show_interrupts(struct seq_file *p, int prec)
 {
-	int i = *(loff_t *) v, j, cpu;
-	struct irqaction *action;
-	unsigned long flags;
-
-	switch (i) {
-		/* display column title bar naming CPUs */
-	case 0:
-		seq_printf(p, "           ");
-		for (j = 0; j < NR_CPUS; j++)
-			if (cpu_online(j))
-				seq_printf(p, "CPU%d       ", j);
-		seq_putc(p, '\n');
-		break;
-
-		/* display information rows, one per active CPU */
-	case 1 ... NR_IRQS - 1:
-		raw_spin_lock_irqsave(&irq_desc[i].lock, flags);
-
-		action = irq_desc[i].action;
-		if (action) {
-			seq_printf(p, "%3d: ", i);
-			for_each_present_cpu(cpu)
-				seq_printf(p, "%10u ", kstat_irqs_cpu(i, cpu));
-
-			if (i < NR_CPU_IRQS)
-				seq_printf(p, " %14s.%u",
-					   irq_desc[i].irq_data.chip->name,
-					   (GxICR(i) & GxICR_LEVEL) >>
-					   GxICR_LEVEL_SHIFT);
-			else
-				seq_printf(p, " %14s",
-					   irq_desc[i].irq_data.chip->name);
-
-			seq_printf(p, "  %s", action->name);
-
-			for (action = action->next;
-			     action;
-			     action = action->next)
-				seq_printf(p, ", %s", action->name);
-
-			seq_putc(p, '\n');
-		}
-
-		raw_spin_unlock_irqrestore(&irq_desc[i].lock, flags);
-		break;
-
-		/* polish off with NMI and error counters */
-	case NR_IRQS:
 #ifdef CONFIG_MN10300_WD_TIMER
-		seq_printf(p, "NMI: ");
-		for (j = 0; j < NR_CPUS; j++)
-			if (cpu_online(j))
-				seq_printf(p, "%10u ", nmi_count(j));
-		seq_putc(p, '\n');
-#endif
+	int j;
 
-		seq_printf(p, "ERR: %10u\n", atomic_read(&irq_err_count));
-		break;
-	}
+	seq_printf(p, "%*s: ", prec, "NMI");
+	for (j = 0; j < NR_CPUS; j++)
+		if (cpu_online(j))
+			seq_printf(p, "%10u ", nmi_count(j));
+	seq_putc(p, '\n');
+#endif
 
+	seq_printf(p, "%*s: ", prec, "ERR");
+	seq_printf(p, "%10u\n", atomic_read(&irq_err_count));
 	return 0;
 }
 
 #ifdef CONFIG_HOTPLUG_CPU
 void migrate_irqs(void)
 {
-	irq_desc_t *desc;
 	int irq;
 	unsigned int self, new;
 	unsigned long flags;
 
 	self = smp_processor_id();
 	for (irq = 0; irq < NR_IRQS; irq++) {
-		desc = irq_desc + irq;
+		struct irq_data *data = irq_get_irq_data(irq);
 
-		if (desc->status == IRQ_PER_CPU)
+		if (irqd_is_per_cpu(data))
 			continue;
 
-		if (cpu_isset(self, irq_desc[irq].affinity) &&
+		if (cpu_isset(self, data->affinity) &&
 		    !cpus_intersects(irq_affinity[irq], cpu_online_map)) {
 			int cpu_id;
 			cpu_id = first_cpu(cpu_online_map);
-			cpu_set(cpu_id, irq_desc[irq].affinity);
+			cpu_set(cpu_id, data->affinity);
 		}
 		/* We need to operate irq_affinity_online atomically. */
 		arch_local_cli_save(flags);
@@ -430,7 +381,7 @@ void migrate_irqs(void)
 			GxICR(irq) = x & GxICR_LEVEL;
 			tmp = GxICR(irq);
 
-			new = any_online_cpu(irq_desc[irq].affinity);
+			new = any_online_cpu(data->affinity);
 			irq_affinity_online[irq] = new;
 
 			CROSS_GxICR(irq, new) =
diff --git a/arch/mn10300/kernel/mn10300-serial.c b/arch/mn10300/kernel/mn10300-serial.c
index efca426a2ed4..94901c56baf1 100644
--- a/arch/mn10300/kernel/mn10300-serial.c
+++ b/arch/mn10300/kernel/mn10300-serial.c
@@ -933,7 +933,7 @@ static int mn10300_serial_startup(struct uart_port *_port)
 		NUM2GxICR_LEVEL(CONFIG_MN10300_SERIAL_IRQ_LEVEL));
 	set_intr_level(port->tx_irq,
 		NUM2GxICR_LEVEL(CONFIG_MN10300_SERIAL_IRQ_LEVEL));
-	set_irq_chip(port->tm_irq, &mn10300_serial_pic);
+	irq_set_chip(port->tm_irq, &mn10300_serial_pic);
 
 	if (request_irq(port->rx_irq, mn10300_serial_interrupt,
 			IRQF_DISABLED, port->rx_name, port) < 0)
diff --git a/arch/mn10300/kernel/smp.c b/arch/mn10300/kernel/smp.c
index 51c02f97dcea..226c826a2194 100644
--- a/arch/mn10300/kernel/smp.c
+++ b/arch/mn10300/kernel/smp.c
@@ -156,15 +156,15 @@ static void init_ipi(void)
 	u16 tmp16;
 
 	/* set up the reschedule IPI */
-	set_irq_chip_and_handler(RESCHEDULE_IPI,
-				 &mn10300_ipi_type, handle_percpu_irq);
+	irq_set_chip_and_handler(RESCHEDULE_IPI, &mn10300_ipi_type,
+				 handle_percpu_irq);
 	setup_irq(RESCHEDULE_IPI, &reschedule_ipi);
 	set_intr_level(RESCHEDULE_IPI, RESCHEDULE_GxICR_LV);
 	mn10300_ipi_enable(RESCHEDULE_IPI);
 
 	/* set up the call function IPI */
-	set_irq_chip_and_handler(CALL_FUNC_SINGLE_IPI,
-				 &mn10300_ipi_type, handle_percpu_irq);
+	irq_set_chip_and_handler(CALL_FUNC_SINGLE_IPI, &mn10300_ipi_type,
+				 handle_percpu_irq);
 	setup_irq(CALL_FUNC_SINGLE_IPI, &call_function_ipi);
 	set_intr_level(CALL_FUNC_SINGLE_IPI, CALL_FUNCTION_GxICR_LV);
 	mn10300_ipi_enable(CALL_FUNC_SINGLE_IPI);
@@ -172,8 +172,8 @@ static void init_ipi(void)
 	/* set up the local timer IPI */
 #if !defined(CONFIG_GENERIC_CLOCKEVENTS) || \
     defined(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST)
-	set_irq_chip_and_handler(LOCAL_TIMER_IPI,
-				 &mn10300_ipi_type, handle_percpu_irq);
+	irq_set_chip_and_handler(LOCAL_TIMER_IPI, &mn10300_ipi_type,
+				 handle_percpu_irq);
 	setup_irq(LOCAL_TIMER_IPI, &local_timer_ipi);
 	set_intr_level(LOCAL_TIMER_IPI, LOCAL_TIMER_GxICR_LV);
 	mn10300_ipi_enable(LOCAL_TIMER_IPI);
diff --git a/arch/mn10300/unit-asb2364/irq-fpga.c b/arch/mn10300/unit-asb2364/irq-fpga.c
index ee84e62b16ed..e16c216f31dc 100644
--- a/arch/mn10300/unit-asb2364/irq-fpga.c
+++ b/arch/mn10300/unit-asb2364/irq-fpga.c
@@ -100,7 +100,8 @@ void __init irq_fpga_init(void)
 	SyncExBus();
 
 	for (irq = NR_CPU_IRQS; irq < NR_IRQS; irq++)
-		set_irq_chip_and_handler(irq, &asb2364_fpga_pic, handle_level_irq);
+		irq_set_chip_and_handler(irq, &asb2364_fpga_pic,
+					 handle_level_irq);
 
 	/* the FPGA drives the XIRQ1 input on the CPU PIC */
 	setup_irq(XIRQ1, &fpga_irq[0]);
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 9b1f427cdc37..69ff049c8571 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -15,7 +15,6 @@ config PARISC
 	select HAVE_GENERIC_HARDIRQS
 	select GENERIC_IRQ_PROBE
 	select IRQ_PER_CPU
-	select GENERIC_HARDIRQS_NO_DEPRECATED
 
 	help
 	  The PA-RISC microprocessor is designed by Hewlett-Packard and used
diff --git a/arch/parisc/include/asm/eisa_eeprom.h b/arch/parisc/include/asm/eisa_eeprom.h
index 9c9da980402a..8ce8b85ca588 100644
--- a/arch/parisc/include/asm/eisa_eeprom.h
+++ b/arch/parisc/include/asm/eisa_eeprom.h
@@ -27,7 +27,7 @@ struct eeprom_header
 	u_int8_t  ver_maj;
 	u_int8_t  ver_min;
 	u_int8_t  num_slots;        /* number of EISA slots in system */
-	u_int16_t csum;             /* checksum, I don't know how to calulate this */
+	u_int16_t csum;             /* checksum, I don't know how to calculate this */
 	u_int8_t  pad[10];
 } __attribute__ ((packed));
 
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index e5477092a5d4..ead8d2a1034c 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -187,8 +187,8 @@
 
 	/* Register definitions for tlb miss handler macros */
 
-	va  = r8	/* virtual address for which the trap occured */
-	spc = r24	/* space for which the trap occured */
+	va  = r8	/* virtual address for which the trap occurred */
+	spc = r24	/* space for which the trap occurred */
 
 #ifndef CONFIG_64BIT
 
@@ -882,7 +882,7 @@ ENTRY(syscall_exit_rfi)
 	 * (we don't store them in the sigcontext), so set them
 	 * to "proper" values now (otherwise we'll wind up restoring
 	 * whatever was last stored in the task structure, which might
-	 * be inconsistent if an interrupt occured while on the gateway
+	 * be inconsistent if an interrupt occurred while on the gateway
 	 * page). Note that we may be "trashing" values the user put in
 	 * them, but we don't support the user changing them.
 	 */
@@ -1156,11 +1156,11 @@ ENDPROC(intr_save)
 	 */
 
 	t0 = r1		/* temporary register 0 */
-	va = r8		/* virtual address for which the trap occured */
+	va = r8		/* virtual address for which the trap occurred */
 	t1 = r9		/* temporary register 1 */
 	pte  = r16	/* pte/phys page # */
 	prot = r17	/* prot bits */
-	spc  = r24	/* space for which the trap occured */
+	spc  = r24	/* space for which the trap occurred */
 	ptp = r25	/* page directory/page table pointer */
 
 #ifdef CONFIG_64BIT
diff --git a/arch/parisc/kernel/head.S b/arch/parisc/kernel/head.S
index 4dbdf0ed6fa0..145c5e4caaa0 100644
--- a/arch/parisc/kernel/head.S
+++ b/arch/parisc/kernel/head.S
@@ -131,7 +131,7 @@ $pgt_fill_loop:
 	ldo             THREAD_SZ_ALGN(%r6),%sp
 
 #ifdef CONFIG_SMP
-	/* Set the smp rendevous address into page zero.
+	/* Set the smp rendezvous address into page zero.
 	** It would be safer to do this in init_smp_config() but
 	** it's just way easier to deal with here because
 	** of 64-bit function ptrs and the address is local to this file.
diff --git a/arch/parisc/kernel/inventory.c b/arch/parisc/kernel/inventory.c
index d228d8237879..08324aac3544 100644
--- a/arch/parisc/kernel/inventory.c
+++ b/arch/parisc/kernel/inventory.c
@@ -93,7 +93,7 @@ void __init setup_pdc(void)
 	case 0x6:		/* 705, 710 */
 	case 0x7:		/* 715, 725 */
 	case 0x8:		/* 745, 747, 742 */
-	case 0xA:		/* 712 and similiar */
+	case 0xA:		/* 712 and similar */
 	case 0xC:		/* 715/64, at least */
 
 		pdc_type = PDC_TYPE_SNAKE;
diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index cb450e1e79b3..c0b1affc06a8 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -113,13 +113,8 @@ int cpu_check_affinity(struct irq_data *d, const struct cpumask *dest)
 	int cpu_dest;
 
 	/* timer and ipi have to always be received on all CPUs */
-	if (CHECK_IRQ_PER_CPU(irq_to_desc(d->irq)->status)) {
-		/* Bad linux design decision.  The mask has already
-		 * been set; we must reset it. Will fix - tglx
-		 */
-		cpumask_setall(d->affinity);
+	if (irqd_is_per_cpu(d))
 		return -EINVAL;
-	}
 
 	/* whatever mask they set, we just allow one CPU */
 	cpu_dest = first_cpu(*dest);
@@ -174,10 +169,11 @@ int show_interrupts(struct seq_file *p, void *v)
 	}
 
 	if (i < NR_IRQS) {
+		struct irq_desc *desc = irq_to_desc(i);
 		struct irqaction *action;
 
-		raw_spin_lock_irqsave(&irq_desc[i].lock, flags);
-		action = irq_desc[i].action;
+		raw_spin_lock_irqsave(&desc->lock, flags);
+		action = desc->action;
 		if (!action)
 			goto skip;
 		seq_printf(p, "%3d: ", i);
@@ -188,7 +184,7 @@ int show_interrupts(struct seq_file *p, void *v)
 		seq_printf(p, "%10u ", kstat_irqs(i));
 #endif
 
-		seq_printf(p, " %14s", irq_desc[i].irq_data.chip->name);
+		seq_printf(p, " %14s", irq_desc_get_chip(desc)->name);
 #ifndef PARISC_IRQ_CR16_COUNTS
 		seq_printf(p, "  %s", action->name);
 
@@ -220,7 +216,7 @@ int show_interrupts(struct seq_file *p, void *v)
 
 		seq_putc(p, '\n');
  skip:
-		raw_spin_unlock_irqrestore(&irq_desc[i].lock, flags);
+		raw_spin_unlock_irqrestore(&desc->lock, flags);
 	}
 
 	return 0;
@@ -238,15 +234,15 @@ int show_interrupts(struct seq_file *p, void *v)
 
 int cpu_claim_irq(unsigned int irq, struct irq_chip *type, void *data)
 {
-	if (irq_desc[irq].action)
+	if (irq_has_action(irq))
 		return -EBUSY;
-	if (get_irq_chip(irq) != &cpu_interrupt_type)
+	if (irq_get_chip(irq) != &cpu_interrupt_type)
 		return -EBUSY;
 
 	/* for iosapic interrupts */
 	if (type) {
-		set_irq_chip_and_handler(irq, type, handle_percpu_irq);
-		set_irq_chip_data(irq, data);
+		irq_set_chip_and_handler(irq, type, handle_percpu_irq);
+		irq_set_chip_data(irq, data);
 		__cpu_unmask_irq(irq);
 	}
 	return 0;
@@ -357,7 +353,7 @@ void do_cpu_irq_mask(struct pt_regs *regs)
 #ifdef CONFIG_SMP
 	desc = irq_to_desc(irq);
 	cpumask_copy(&dest, desc->irq_data.affinity);
-	if (CHECK_IRQ_PER_CPU(desc->status) &&
+	if (irqd_is_per_cpu(&desc->irq_data) &&
 	    !cpu_isset(smp_processor_id(), dest)) {
 		int cpu = first_cpu(dest);
 
@@ -398,14 +394,14 @@ static void claim_cpu_irqs(void)
 {
 	int i;
 	for (i = CPU_IRQ_BASE; i <= CPU_IRQ_MAX; i++) {
-		set_irq_chip_and_handler(i, &cpu_interrupt_type,
+		irq_set_chip_and_handler(i, &cpu_interrupt_type,
 					 handle_percpu_irq);
 	}
 
-	set_irq_handler(TIMER_IRQ, handle_percpu_irq);
+	irq_set_handler(TIMER_IRQ, handle_percpu_irq);
 	setup_irq(TIMER_IRQ, &timer_action);
 #ifdef CONFIG_SMP
-	set_irq_handler(IPI_IRQ, handle_percpu_irq);
+	irq_set_handler(IPI_IRQ, handle_percpu_irq);
 	setup_irq(IPI_IRQ, &ipi_action);
 #endif
 }
diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index 609a331878e7..12c1ed33dc18 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -291,7 +291,7 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 		DBG(1,"setup_rt_frame: frame->uc = 0x%p\n", &frame->uc);
 		DBG(1,"setup_rt_frame: frame->uc.uc_mcontext = 0x%p\n", &frame->uc.uc_mcontext);
 		err |= setup_sigcontext(&frame->uc.uc_mcontext, regs, in_syscall);
-		/* FIXME: Should probably be converted aswell for the compat case */
+		/* FIXME: Should probably be converted as well for the compat case */
 		err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
 	}
 	
diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index 68e75ce838d6..82a52b2fb13f 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -605,7 +605,7 @@ cas_action:
 	copy	%r0, %r21
 
 3:		
-	/* Error occured on load or store */
+	/* Error occurred on load or store */
 	/* Free lock */
 	stw	%r20, 0(%sr2,%r20)
 #if ENABLE_LWS_DEBUG
diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index 74867dfdabe5..4be85ee10b85 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -34,7 +34,7 @@
 /* Use ENTRY_SAME for 32-bit syscalls which are the same on wide and
  * narrow palinux.  Use ENTRY_DIFF for those where a 32-bit specific
  * implementation is required on wide palinux.  Use ENTRY_COMP where
- * the compatability layer has a useful 32-bit implementation.
+ * the compatibility layer has a useful 32-bit implementation.
  */
 #define ENTRY_SAME(_name_) .dword sys_##_name_
 #define ENTRY_DIFF(_name_) .dword sys32_##_name_
diff --git a/arch/parisc/math-emu/dfadd.c b/arch/parisc/math-emu/dfadd.c
index e147d7d3b0f4..d37e2d2cb6fe 100644
--- a/arch/parisc/math-emu/dfadd.c
+++ b/arch/parisc/math-emu/dfadd.c
@@ -303,7 +303,7 @@ dbl_fadd(
 	if(Dbl_iszero_hidden(resultp1))
 	    {
 	    /* Handle normalization */
-	    /* A straight foward algorithm would now shift the result
+	    /* A straight forward algorithm would now shift the result
 	     * and extension left until the hidden bit becomes one.  Not
 	     * all of the extension bits need participate in the shift.
 	     * Only the two most significant bits (round and guard) are
diff --git a/arch/parisc/math-emu/dfsub.c b/arch/parisc/math-emu/dfsub.c
index 87ebc60d465b..2e8b5a79bff7 100644
--- a/arch/parisc/math-emu/dfsub.c
+++ b/arch/parisc/math-emu/dfsub.c
@@ -306,7 +306,7 @@ dbl_fsub(
 	if(Dbl_iszero_hidden(resultp1))
 	    {
 	    /* Handle normalization */
-	    /* A straight foward algorithm would now shift the result
+	    /* A straight forward algorithm would now shift the result
 	     * and extension left until the hidden bit becomes one.  Not
 	     * all of the extension bits need participate in the shift.
 	     * Only the two most significant bits (round and guard) are
diff --git a/arch/parisc/math-emu/fmpyfadd.c b/arch/parisc/math-emu/fmpyfadd.c
index 5dd7f93a89be..b067c45c872d 100644
--- a/arch/parisc/math-emu/fmpyfadd.c
+++ b/arch/parisc/math-emu/fmpyfadd.c
@@ -531,7 +531,7 @@ dbl_fmpyfadd(
 		sign_save = Dbl_signextendedsign(resultp1);
 		if (Dbl_iszero_hidden(resultp1)) {
 			/* Handle normalization */
-		/* A straight foward algorithm would now shift the
+		/* A straightforward algorithm would now shift the
 		 * result and extension left until the hidden bit
 		 * becomes one.  Not all of the extension bits need
 		 * participate in the shift.  Only the two most 
@@ -1191,7 +1191,7 @@ unsigned int *status;
 		sign_save = Dbl_signextendedsign(resultp1);
 		if (Dbl_iszero_hidden(resultp1)) {
 			/* Handle normalization */
-		/* A straight foward algorithm would now shift the
+		/* A straightforward algorithm would now shift the
 		 * result and extension left until the hidden bit
 		 * becomes one.  Not all of the extension bits need
 		 * participate in the shift.  Only the two most 
@@ -1841,7 +1841,7 @@ unsigned int *status;
 		sign_save = Sgl_signextendedsign(resultp1);
 		if (Sgl_iszero_hidden(resultp1)) {
 			/* Handle normalization */
-		/* A straight foward algorithm would now shift the
+		/* A straightforward algorithm would now shift the
 		 * result and extension left until the hidden bit
 		 * becomes one.  Not all of the extension bits need
 		 * participate in the shift.  Only the two most 
@@ -2483,7 +2483,7 @@ unsigned int *status;
 		sign_save = Sgl_signextendedsign(resultp1);
 		if (Sgl_iszero_hidden(resultp1)) {
 			/* Handle normalization */
-		/* A straight foward algorithm would now shift the
+		/* A straightforward algorithm would now shift the
 		 * result and extension left until the hidden bit
 		 * becomes one.  Not all of the extension bits need
 		 * participate in the shift.  Only the two most 
diff --git a/arch/parisc/math-emu/sfadd.c b/arch/parisc/math-emu/sfadd.c
index 008d721b5d22..f802cd6c7869 100644
--- a/arch/parisc/math-emu/sfadd.c
+++ b/arch/parisc/math-emu/sfadd.c
@@ -298,7 +298,7 @@ sgl_fadd(
 	if(Sgl_iszero_hidden(result))
 	    {
 	    /* Handle normalization */
-	    /* A straight foward algorithm would now shift the result
+	    /* A straightforward algorithm would now shift the result
 	     * and extension left until the hidden bit becomes one.  Not
 	     * all of the extension bits need participate in the shift.
 	     * Only the two most significant bits (round and guard) are
diff --git a/arch/parisc/math-emu/sfsub.c b/arch/parisc/math-emu/sfsub.c
index 24eef61c8e3b..5f90d0f31a52 100644
--- a/arch/parisc/math-emu/sfsub.c
+++ b/arch/parisc/math-emu/sfsub.c
@@ -301,7 +301,7 @@ sgl_fsub(
 	if(Sgl_iszero_hidden(result))
 	    {
 	    /* Handle normalization */
-	    /* A straight foward algorithm would now shift the result
+	    /* A straightforward algorithm would now shift the result
 	     * and extension left until the hidden bit becomes one.  Not
 	     * all of the extension bits need participate in the shift.
 	     * Only the two most significant bits (round and guard) are
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index f4f4d700833a..b7ed8d7a9b33 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -544,7 +544,7 @@ void __init mem_init(void)
 unsigned long *empty_zero_page __read_mostly;
 EXPORT_SYMBOL(empty_zero_page);
 
-void show_mem(void)
+void show_mem(unsigned int filter)
 {
 	int i,free = 0,total = 0,reserved = 0;
 	int shared = 0, cached = 0;
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 3584e4d4a4ad..b6ff882f695b 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -138,7 +138,8 @@ config PPC
 	select HAVE_GENERIC_HARDIRQS
 	select HAVE_SPARSE_IRQ
 	select IRQ_PER_CPU
-	select GENERIC_HARDIRQS_NO_DEPRECATED
+	select GENERIC_IRQ_SHOW
+	select GENERIC_IRQ_SHOW_LEVEL
 
 config EARLY_PRINTK
 	bool
diff --git a/arch/powerpc/boot/dts/p1020rdb.dts b/arch/powerpc/boot/dts/p1020rdb.dts
index 22f64b62d7f6..e0668f877794 100644
--- a/arch/powerpc/boot/dts/p1020rdb.dts
+++ b/arch/powerpc/boot/dts/p1020rdb.dts
@@ -1,7 +1,7 @@
 /*
  * P1020 RDB Device Tree Source
  *
- * Copyright 2009 Freescale Semiconductor Inc.
+ * Copyright 2009-2011 Freescale Semiconductor Inc.
  *
  * This program is free software; you can redistribute  it and/or modify it
  * under  the terms of  the GNU General  Public License as published by the
@@ -553,7 +553,7 @@
 		reg = <0 0xffe09000 0 0x1000>;
 		bus-range = <0 255>;
 		ranges = <0x2000000 0x0 0xa0000000 0 0xa0000000 0x0 0x20000000
-			  0x1000000 0x0 0x00000000 0 0xffc30000 0x0 0x10000>;
+			  0x1000000 0x0 0x00000000 0 0xffc10000 0x0 0x10000>;
 		clock-frequency = <33333333>;
 		interrupt-parent = <&mpic>;
 		interrupts = <16 2>;
@@ -580,8 +580,8 @@
 		#address-cells = <3>;
 		reg = <0 0xffe0a000 0 0x1000>;
 		bus-range = <0 255>;
-		ranges = <0x2000000 0x0 0xc0000000 0 0xc0000000 0x0 0x20000000
-			  0x1000000 0x0 0x00000000 0 0xffc20000 0x0 0x10000>;
+		ranges = <0x2000000 0x0 0x80000000 0 0x80000000 0x0 0x20000000
+			  0x1000000 0x0 0x00000000 0 0xffc00000 0x0 0x10000>;
 		clock-frequency = <33333333>;
 		interrupt-parent = <&mpic>;
 		interrupts = <16 2>;
@@ -590,8 +590,8 @@
 			#size-cells = <2>;
 			#address-cells = <3>;
 			device_type = "pci";
-			ranges = <0x2000000 0x0 0xc0000000
-				  0x2000000 0x0 0xc0000000
+			ranges = <0x2000000 0x0 0x80000000
+				  0x2000000 0x0 0x80000000
 				  0x0 0x20000000
 
 				  0x1000000 0x0 0x0
diff --git a/arch/powerpc/boot/dts/p2020rdb.dts b/arch/powerpc/boot/dts/p2020rdb.dts
index da4cb0d8d215..e2d48fd4416e 100644
--- a/arch/powerpc/boot/dts/p2020rdb.dts
+++ b/arch/powerpc/boot/dts/p2020rdb.dts
@@ -1,7 +1,7 @@
 /*
  * P2020 RDB Device Tree Source
  *
- * Copyright 2009 Freescale Semiconductor Inc.
+ * Copyright 2009-2011 Freescale Semiconductor Inc.
  *
  * This program is free software; you can redistribute  it and/or modify it
  * under  the terms of  the GNU General  Public License as published by the
@@ -537,7 +537,7 @@
 		reg = <0 0xffe09000 0 0x1000>;
 		bus-range = <0 255>;
 		ranges = <0x2000000 0x0 0xa0000000 0 0xa0000000 0x0 0x20000000
-			  0x1000000 0x0 0x00000000 0 0xffc30000 0x0 0x10000>;
+			  0x1000000 0x0 0x00000000 0 0xffc10000 0x0 0x10000>;
 		clock-frequency = <33333333>;
 		interrupt-parent = <&mpic>;
 		interrupts = <25 2>;
@@ -564,8 +564,8 @@
 		#address-cells = <3>;
 		reg = <0 0xffe0a000 0 0x1000>;
 		bus-range = <0 255>;
-		ranges = <0x2000000 0x0 0xc0000000 0 0xc0000000 0x0 0x20000000
-			  0x1000000 0x0 0x00000000 0 0xffc20000 0x0 0x10000>;
+		ranges = <0x2000000 0x0 0x80000000 0 0x80000000 0x0 0x20000000
+			  0x1000000 0x0 0x00000000 0 0xffc00000 0x0 0x10000>;
 		clock-frequency = <33333333>;
 		interrupt-parent = <&mpic>;
 		interrupts = <26 2>;
@@ -574,8 +574,8 @@
 			#size-cells = <2>;
 			#address-cells = <3>;
 			device_type = "pci";
-			ranges = <0x2000000 0x0 0xc0000000
-				  0x2000000 0x0 0xc0000000
+			ranges = <0x2000000 0x0 0x80000000
+				  0x2000000 0x0 0x80000000
 				  0x0 0x20000000
 
 				  0x1000000 0x0 0x0
diff --git a/arch/powerpc/boot/dts/p2020rdb_camp_core0.dts b/arch/powerpc/boot/dts/p2020rdb_camp_core0.dts
index 0fe93d0c8b2e..b69c3a5dc858 100644
--- a/arch/powerpc/boot/dts/p2020rdb_camp_core0.dts
+++ b/arch/powerpc/boot/dts/p2020rdb_camp_core0.dts
@@ -6,7 +6,7 @@
  * This dts file allows core0 to have memory, l2, i2c, spi, gpio, dma1, usb,
  * eth1, eth2, sdhc, crypto, global-util, pci0.
  *
- * Copyright 2009 Freescale Semiconductor Inc.
+ * Copyright 2009-2011 Freescale Semiconductor Inc.
  *
  * This program is free software; you can redistribute  it and/or modify it
  * under  the terms of  the GNU General  Public License as published by the
@@ -342,7 +342,7 @@
 		reg = <0 0xffe09000 0 0x1000>;
 		bus-range = <0 255>;
 		ranges = <0x2000000 0x0 0xa0000000 0 0xa0000000 0x0 0x20000000
-			  0x1000000 0x0 0x00000000 0 0xffc30000 0x0 0x10000>;
+			  0x1000000 0x0 0x00000000 0 0xffc10000 0x0 0x10000>;
 		clock-frequency = <33333333>;
 		interrupt-parent = <&mpic>;
 		interrupts = <25 2>;
diff --git a/arch/powerpc/boot/dts/p2020rdb_camp_core1.dts b/arch/powerpc/boot/dts/p2020rdb_camp_core1.dts
index e95a51285328..7a31d46c01b0 100644
--- a/arch/powerpc/boot/dts/p2020rdb_camp_core1.dts
+++ b/arch/powerpc/boot/dts/p2020rdb_camp_core1.dts
@@ -7,7 +7,7 @@
  *
  * Please note to add "-b 1" for core1's dts compiling.
  *
- * Copyright 2009 Freescale Semiconductor Inc.
+ * Copyright 2009-2011 Freescale Semiconductor Inc.
  *
  * This program is free software; you can redistribute  it and/or modify it
  * under  the terms of  the GNU General  Public License as published by the
@@ -162,8 +162,8 @@
 		#address-cells = <3>;
 		reg = <0 0xffe0a000 0 0x1000>;
 		bus-range = <0 255>;
-		ranges = <0x2000000 0x0 0xc0000000 0 0xc0000000 0x0 0x20000000
-			  0x1000000 0x0 0x00000000 0 0xffc20000 0x0 0x10000>;
+		ranges = <0x2000000 0x0 0x80000000 0 0x80000000 0x0 0x20000000
+			  0x1000000 0x0 0x00000000 0 0xffc00000 0x0 0x10000>;
 		clock-frequency = <33333333>;
 		interrupt-parent = <&mpic>;
 		interrupts = <26 2>;
@@ -172,8 +172,8 @@
 			#size-cells = <2>;
 			#address-cells = <3>;
 			device_type = "pci";
-			ranges = <0x2000000 0x0 0xc0000000
-				  0x2000000 0x0 0xc0000000
+			ranges = <0x2000000 0x0 0x80000000
+				  0x2000000 0x0 0x80000000
 				  0x0 0x20000000
 
 				  0x1000000 0x0 0x0
diff --git a/arch/powerpc/configs/44x/warp_defconfig b/arch/powerpc/configs/44x/warp_defconfig
index 6cf9d6614805..abf74dc1f79c 100644
--- a/arch/powerpc/configs/44x/warp_defconfig
+++ b/arch/powerpc/configs/44x/warp_defconfig
@@ -47,6 +47,7 @@ CONFIG_MTD_NAND_NDFC=y
 CONFIG_MTD_UBI=y
 CONFIG_PROC_DEVICETREE=y
 CONFIG_BLK_DEV_RAM=y
+CONFIG_MISC_DEVICES=y
 CONFIG_EEPROM_AT24=y
 CONFIG_SCSI=y
 CONFIG_BLK_DEV_SD=y
diff --git a/arch/powerpc/configs/52xx/motionpro_defconfig b/arch/powerpc/configs/52xx/motionpro_defconfig
index 6828eda02bdc..0c7de9620ea6 100644
--- a/arch/powerpc/configs/52xx/motionpro_defconfig
+++ b/arch/powerpc/configs/52xx/motionpro_defconfig
@@ -43,6 +43,7 @@ CONFIG_PROC_DEVICETREE=y
 CONFIG_BLK_DEV_LOOP=y
 CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_RAM_SIZE=32768
+CONFIG_MISC_DEVICES=y
 CONFIG_EEPROM_LEGACY=y
 CONFIG_SCSI_TGT=y
 CONFIG_BLK_DEV_SD=y
diff --git a/arch/powerpc/configs/86xx/gef_ppc9a_defconfig b/arch/powerpc/configs/86xx/gef_ppc9a_defconfig
index 4b2441244eab..d41857a5152d 100644
--- a/arch/powerpc/configs/86xx/gef_ppc9a_defconfig
+++ b/arch/powerpc/configs/86xx/gef_ppc9a_defconfig
@@ -85,6 +85,7 @@ CONFIG_BLK_DEV_CRYPTOLOOP=m
 CONFIG_BLK_DEV_NBD=m
 CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_RAM_SIZE=131072
+CONFIG_MISC_DEVICES=y
 CONFIG_DS1682=y
 CONFIG_IDE=y
 CONFIG_BLK_DEV_IDECS=y
diff --git a/arch/powerpc/configs/86xx/gef_sbc310_defconfig b/arch/powerpc/configs/86xx/gef_sbc310_defconfig
index a360ba44b928..38303ec11bcd 100644
--- a/arch/powerpc/configs/86xx/gef_sbc310_defconfig
+++ b/arch/powerpc/configs/86xx/gef_sbc310_defconfig
@@ -85,6 +85,7 @@ CONFIG_BLK_DEV_CRYPTOLOOP=m
 CONFIG_BLK_DEV_NBD=m
 CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_RAM_SIZE=131072
+CONFIG_MISC_DEVICES=y
 CONFIG_DS1682=y
 CONFIG_IDE=y
 CONFIG_BLK_DEV_IDECS=y
diff --git a/arch/powerpc/configs/86xx/gef_sbc610_defconfig b/arch/powerpc/configs/86xx/gef_sbc610_defconfig
index be2829dd129f..98533973d20f 100644
--- a/arch/powerpc/configs/86xx/gef_sbc610_defconfig
+++ b/arch/powerpc/configs/86xx/gef_sbc610_defconfig
@@ -138,6 +138,7 @@ CONFIG_BLK_DEV_CRYPTOLOOP=m
 CONFIG_BLK_DEV_NBD=m
 CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_RAM_SIZE=131072
+CONFIG_MISC_DEVICES=y
 CONFIG_DS1682=y
 CONFIG_BLK_DEV_SD=y
 CONFIG_CHR_DEV_ST=y
diff --git a/arch/powerpc/configs/86xx/mpc8641_hpcn_defconfig b/arch/powerpc/configs/86xx/mpc8641_hpcn_defconfig
index 0c9c7ed7ec75..b614508d6fd2 100644
--- a/arch/powerpc/configs/86xx/mpc8641_hpcn_defconfig
+++ b/arch/powerpc/configs/86xx/mpc8641_hpcn_defconfig
@@ -63,6 +63,7 @@ CONFIG_BLK_DEV_LOOP=y
 CONFIG_BLK_DEV_NBD=y
 CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_RAM_SIZE=131072
+CONFIG_MISC_DEVICES=y
 CONFIG_EEPROM_LEGACY=y
 CONFIG_BLK_DEV_SD=y
 CONFIG_CHR_DEV_ST=y
diff --git a/arch/powerpc/configs/e55xx_smp_defconfig b/arch/powerpc/configs/e55xx_smp_defconfig
index 06f95492afc7..9fa1613e5e2b 100644
--- a/arch/powerpc/configs/e55xx_smp_defconfig
+++ b/arch/powerpc/configs/e55xx_smp_defconfig
@@ -32,6 +32,7 @@ CONFIG_PROC_DEVICETREE=y
 CONFIG_BLK_DEV_LOOP=y
 CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_RAM_SIZE=131072
+CONFIG_MISC_DEVICES=y
 CONFIG_EEPROM_LEGACY=y
 CONFIG_INPUT_FF_MEMLESS=m
 # CONFIG_INPUT_MOUSEDEV is not set
diff --git a/arch/powerpc/configs/linkstation_defconfig b/arch/powerpc/configs/linkstation_defconfig
index f39d0cf876dd..8a874b999867 100644
--- a/arch/powerpc/configs/linkstation_defconfig
+++ b/arch/powerpc/configs/linkstation_defconfig
@@ -78,6 +78,7 @@ CONFIG_BLK_DEV_LOOP=y
 CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_RAM_COUNT=2
 CONFIG_BLK_DEV_RAM_SIZE=8192
+CONFIG_MISC_DEVICES=y
 CONFIG_EEPROM_LEGACY=m
 CONFIG_BLK_DEV_SD=y
 CONFIG_CHR_DEV_SG=y
diff --git a/arch/powerpc/configs/mpc512x_defconfig b/arch/powerpc/configs/mpc512x_defconfig
index 62db8a3df162..c02bbb2fddf8 100644
--- a/arch/powerpc/configs/mpc512x_defconfig
+++ b/arch/powerpc/configs/mpc512x_defconfig
@@ -61,6 +61,7 @@ CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_RAM_COUNT=1
 CONFIG_BLK_DEV_RAM_SIZE=8192
 CONFIG_BLK_DEV_XIP=y
+CONFIG_MISC_DEVICES=y
 CONFIG_EEPROM_AT24=y
 CONFIG_SCSI=y
 # CONFIG_SCSI_PROC_FS is not set
diff --git a/arch/powerpc/configs/mpc5200_defconfig b/arch/powerpc/configs/mpc5200_defconfig
index 7376e27b8ed4..e63f537b854a 100644
--- a/arch/powerpc/configs/mpc5200_defconfig
+++ b/arch/powerpc/configs/mpc5200_defconfig
@@ -52,6 +52,7 @@ CONFIG_PROC_DEVICETREE=y
 CONFIG_BLK_DEV_LOOP=y
 CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_RAM_SIZE=32768
+CONFIG_MISC_DEVICES=y
 CONFIG_EEPROM_AT24=y
 CONFIG_SCSI_TGT=y
 CONFIG_BLK_DEV_SD=y
diff --git a/arch/powerpc/configs/mpc85xx_defconfig b/arch/powerpc/configs/mpc85xx_defconfig
index 99a19d1e9bf8..c06a86c33098 100644
--- a/arch/powerpc/configs/mpc85xx_defconfig
+++ b/arch/powerpc/configs/mpc85xx_defconfig
@@ -82,6 +82,7 @@ CONFIG_BLK_DEV_LOOP=y
 CONFIG_BLK_DEV_NBD=y
 CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_RAM_SIZE=131072
+CONFIG_MISC_DEVICES=y
 CONFIG_EEPROM_LEGACY=y
 CONFIG_BLK_DEV_SD=y
 CONFIG_CHR_DEV_ST=y
diff --git a/arch/powerpc/configs/mpc85xx_smp_defconfig b/arch/powerpc/configs/mpc85xx_smp_defconfig
index c636f23f8c92..942ced90557c 100644
--- a/arch/powerpc/configs/mpc85xx_smp_defconfig
+++ b/arch/powerpc/configs/mpc85xx_smp_defconfig
@@ -84,6 +84,7 @@ CONFIG_BLK_DEV_LOOP=y
 CONFIG_BLK_DEV_NBD=y
 CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_RAM_SIZE=131072
+CONFIG_MISC_DEVICES=y
 CONFIG_EEPROM_LEGACY=y
 CONFIG_BLK_DEV_SD=y
 CONFIG_CHR_DEV_ST=y
diff --git a/arch/powerpc/configs/mpc86xx_defconfig b/arch/powerpc/configs/mpc86xx_defconfig
index 55b54318fef6..038a308cbfc4 100644
--- a/arch/powerpc/configs/mpc86xx_defconfig
+++ b/arch/powerpc/configs/mpc86xx_defconfig
@@ -66,6 +66,7 @@ CONFIG_BLK_DEV_LOOP=y
 CONFIG_BLK_DEV_NBD=y
 CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_RAM_SIZE=131072
+CONFIG_MISC_DEVICES=y
 CONFIG_EEPROM_LEGACY=y
 CONFIG_BLK_DEV_SD=y
 CONFIG_CHR_DEV_ST=y
diff --git a/arch/powerpc/configs/pasemi_defconfig b/arch/powerpc/configs/pasemi_defconfig
index edd2d54c8196..f4deb0b78cf0 100644
--- a/arch/powerpc/configs/pasemi_defconfig
+++ b/arch/powerpc/configs/pasemi_defconfig
@@ -59,6 +59,7 @@ CONFIG_PROC_DEVICETREE=y
 CONFIG_BLK_DEV_LOOP=y
 CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_RAM_SIZE=16384
+CONFIG_MISC_DEVICES=y
 CONFIG_EEPROM_LEGACY=y
 CONFIG_IDE=y
 CONFIG_BLK_DEV_IDECD=y
diff --git a/arch/powerpc/configs/ppc6xx_defconfig b/arch/powerpc/configs/ppc6xx_defconfig
index 9d64a6822d86..0a10fb009ef7 100644
--- a/arch/powerpc/configs/ppc6xx_defconfig
+++ b/arch/powerpc/configs/ppc6xx_defconfig
@@ -398,6 +398,7 @@ CONFIG_BLK_DEV_RAM_SIZE=16384
 CONFIG_CDROM_PKTCDVD=m
 CONFIG_VIRTIO_BLK=m
 CONFIG_BLK_DEV_HD=y
+CONFIG_MISC_DEVICES=y
 CONFIG_ENCLOSURE_SERVICES=m
 CONFIG_SENSORS_TSL2550=m
 CONFIG_EEPROM_AT24=m
diff --git a/arch/powerpc/configs/pseries_defconfig b/arch/powerpc/configs/pseries_defconfig
index 9c3f22c6cde1..249ddd0a27cd 100644
--- a/arch/powerpc/configs/pseries_defconfig
+++ b/arch/powerpc/configs/pseries_defconfig
@@ -189,6 +189,7 @@ CONFIG_TIGON3=y
 CONFIG_BNX2=m
 CONFIG_CHELSIO_T1=m
 CONFIG_CHELSIO_T3=m
+CONFIG_CHELSIO_T4=m
 CONFIG_EHEA=y
 CONFIG_IXGBE=m
 CONFIG_IXGB=m
@@ -255,6 +256,8 @@ CONFIG_INFINIBAND_USER_MAD=m
 CONFIG_INFINIBAND_USER_ACCESS=m
 CONFIG_INFINIBAND_MTHCA=m
 CONFIG_INFINIBAND_EHCA=m
+CONFIG_INFINIBAND_CXGB3=m
+CONFIG_INFINIBAND_CXGB4=m
 CONFIG_MLX4_INFINIBAND=m
 CONFIG_INFINIBAND_IPOIB=m
 CONFIG_INFINIBAND_IPOIB_CM=y
diff --git a/arch/powerpc/include/asm/bitops.h b/arch/powerpc/include/asm/bitops.h
index 2e561876fc89..f18c6d9b9510 100644
--- a/arch/powerpc/include/asm/bitops.h
+++ b/arch/powerpc/include/asm/bitops.h
@@ -209,8 +209,8 @@ static __inline__ unsigned long ffz(unsigned long x)
 		return BITS_PER_LONG;
 
 	/*
-	 * Calculate the bit position of the least signficant '1' bit in x
-	 * (since x has been changed this will actually be the least signficant
+	 * Calculate the bit position of the least significant '1' bit in x
+	 * (since x has been changed this will actually be the least significant
 	 * '0' bit in * the original x).  Note: (x & -x) gives us a mask that
 	 * is the least significant * (RIGHT-most) 1-bit of the value in x.
 	 */
diff --git a/arch/powerpc/include/asm/compat.h b/arch/powerpc/include/asm/compat.h
index 2296112e247b..91010e8f8479 100644
--- a/arch/powerpc/include/asm/compat.h
+++ b/arch/powerpc/include/asm/compat.h
@@ -140,7 +140,7 @@ static inline void __user *arch_compat_alloc_user_space(long len)
 	unsigned long usp = regs->gpr[1];
 
 	/*
-	 * We cant access below the stack pointer in the 32bit ABI and
+	 * We can't access below the stack pointer in the 32bit ABI and
 	 * can access 288 bytes in the 64bit ABI
 	 */
 	if (!is_32bit_task())
diff --git a/arch/powerpc/include/asm/cpm.h b/arch/powerpc/include/asm/cpm.h
index e50323fe941f..4398a6cdcf53 100644
--- a/arch/powerpc/include/asm/cpm.h
+++ b/arch/powerpc/include/asm/cpm.h
@@ -98,7 +98,7 @@ typedef struct cpm_buf_desc {
 #define BD_SC_INTRPT	(0x1000)	/* Interrupt on change */
 #define BD_SC_LAST	(0x0800)	/* Last buffer in frame */
 #define BD_SC_TC	(0x0400)	/* Transmit CRC */
-#define BD_SC_CM	(0x0200)	/* Continous mode */
+#define BD_SC_CM	(0x0200)	/* Continuous mode */
 #define BD_SC_ID	(0x0100)	/* Rec'd too many idles */
 #define BD_SC_P		(0x0100)	/* xmt preamble */
 #define BD_SC_BR	(0x0020)	/* Break received */
diff --git a/arch/powerpc/include/asm/cpm1.h b/arch/powerpc/include/asm/cpm1.h
index bd07650dca56..8ee4211ca0c6 100644
--- a/arch/powerpc/include/asm/cpm1.h
+++ b/arch/powerpc/include/asm/cpm1.h
@@ -4,7 +4,7 @@
  *
  * This file contains structures and information for the communication
  * processor channels.  Some CPM control and status is available
- * throught the MPC8xx internal memory map.  See immap.h for details.
+ * through the MPC8xx internal memory map.  See immap.h for details.
  * This file only contains what I need for the moment, not the total
  * CPM capabilities.  I (or someone else) will add definitions as they
  * are needed.  -- Dan
diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h
index 6d2416a85709..dd70fac57ec8 100644
--- a/arch/powerpc/include/asm/dma-mapping.h
+++ b/arch/powerpc/include/asm/dma-mapping.h
@@ -42,6 +42,7 @@ extern void __dma_free_coherent(size_t size, void *vaddr);
 extern void __dma_sync(void *vaddr, size_t size, int direction);
 extern void __dma_sync_page(struct page *page, unsigned long offset,
 				 size_t size, int direction);
+extern unsigned long __dma_get_coherent_pfn(unsigned long cpu_addr);
 
 #else /* ! CONFIG_NOT_COHERENT_CACHE */
 /*
@@ -198,6 +199,11 @@ static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
 #define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
 #define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h)
 
+extern int dma_mmap_coherent(struct device *, struct vm_area_struct *,
+			     void *, dma_addr_t, size_t);
+#define ARCH_HAS_DMA_MMAP_COHERENT
+
+
 static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
 		enum dma_data_direction direction)
 {
diff --git a/arch/powerpc/include/asm/hvcall.h b/arch/powerpc/include/asm/hvcall.h
index ec089acfa56b..8edec710cc6d 100644
--- a/arch/powerpc/include/asm/hvcall.h
+++ b/arch/powerpc/include/asm/hvcall.h
@@ -122,7 +122,7 @@
 #define H_DABRX_KERNEL		(1UL<<(63-62))
 #define H_DABRX_USER		(1UL<<(63-63))
 
-/* Each control block has to be on a 4K bondary */
+/* Each control block has to be on a 4K boundary */
 #define H_CB_ALIGNMENT          4096
 
 /* pSeries hypervisor opcodes */
diff --git a/arch/powerpc/include/asm/kprobes.h b/arch/powerpc/include/asm/kprobes.h
index d0e7701fa1f6..be0171afdc0f 100644
--- a/arch/powerpc/include/asm/kprobes.h
+++ b/arch/powerpc/include/asm/kprobes.h
@@ -50,7 +50,7 @@ typedef unsigned int kprobe_opcode_t;
  * Handle cases where:
  * 		- User passes a <.symbol> or <module:.symbol>
  * 		- User passes a <symbol> or <module:symbol>
- * 		- User passes a non-existant symbol, kallsyms_lookup_name
+ * 		- User passes a non-existent symbol, kallsyms_lookup_name
  * 		  returns 0. Don't deref the NULL pointer in that case
  */
 #define kprobe_lookup_name(name, addr)					\
diff --git a/arch/powerpc/include/asm/lppaca.h b/arch/powerpc/include/asm/lppaca.h
index 26b8c807f8f1..a077adc0b35e 100644
--- a/arch/powerpc/include/asm/lppaca.h
+++ b/arch/powerpc/include/asm/lppaca.h
@@ -105,7 +105,7 @@ struct lppaca {
 	// processing of external interrupts.  Note that PLIC will store the
 	// XIRR directly into the xXirrValue field so that another XIRR will
 	// not be presented until this one clears.  The layout of the low
-	// 4-bytes of this Dword is upto SLIC - PLIC just checks whether the
+	// 4-bytes of this Dword is up to SLIC - PLIC just checks whether the
 	// entire Dword is zero or not.  A non-zero value in the low order
 	// 2-bytes will result in SLIC being granted the highest thread
 	// priority upon return.  A 0 will return to SLIC as medium priority.
diff --git a/arch/powerpc/include/asm/machdep.h b/arch/powerpc/include/asm/machdep.h
index fe56a23e1ff0..e4f01915fbb0 100644
--- a/arch/powerpc/include/asm/machdep.h
+++ b/arch/powerpc/include/asm/machdep.h
@@ -35,9 +35,9 @@ struct smp_ops_t {
 	int   (*probe)(void);
 	void  (*kick_cpu)(int nr);
 	void  (*setup_cpu)(int nr);
+	void  (*bringup_done)(void);
 	void  (*take_timebase)(void);
 	void  (*give_timebase)(void);
-	int   (*cpu_enable)(unsigned int nr);
 	int   (*cpu_disable)(void);
 	void  (*cpu_die)(unsigned int nr);
 	int   (*cpu_bootable)(unsigned int nr);
@@ -267,7 +267,6 @@ struct machdep_calls {
 
 extern void e500_idle(void);
 extern void power4_idle(void);
-extern void power4_cpu_offline_powersave(void);
 extern void ppc6xx_idle(void);
 extern void book3e_idle(void);
 
diff --git a/arch/powerpc/include/asm/mmu-hash64.h b/arch/powerpc/include/asm/mmu-hash64.h
index acac35d5b382..ae7b3efec8e5 100644
--- a/arch/powerpc/include/asm/mmu-hash64.h
+++ b/arch/powerpc/include/asm/mmu-hash64.h
@@ -27,7 +27,7 @@
 #define STE_VSID_SHIFT	12
 
 /* Location of cpu0's segment table */
-#define STAB0_PAGE	0x6
+#define STAB0_PAGE	0x8
 #define STAB0_OFFSET	(STAB0_PAGE << 12)
 #define STAB0_PHYS_ADDR	(STAB0_OFFSET + PHYSICAL_START)
 
diff --git a/arch/powerpc/include/asm/page.h b/arch/powerpc/include/asm/page.h
index da4b20008541..2cd664ef0a5e 100644
--- a/arch/powerpc/include/asm/page.h
+++ b/arch/powerpc/include/asm/page.h
@@ -100,7 +100,7 @@ extern phys_addr_t kernstart_addr;
 #endif
 
 #ifdef CONFIG_FLATMEM
-#define ARCH_PFN_OFFSET		(MEMORY_START >> PAGE_SHIFT)
+#define ARCH_PFN_OFFSET		((unsigned long)(MEMORY_START >> PAGE_SHIFT))
 #define pfn_valid(pfn)		((pfn) >= ARCH_PFN_OFFSET && (pfn) < max_mapnr)
 #endif
 
diff --git a/arch/powerpc/include/asm/page_64.h b/arch/powerpc/include/asm/page_64.h
index 932f88dcf6fa..812b2cd80aed 100644
--- a/arch/powerpc/include/asm/page_64.h
+++ b/arch/powerpc/include/asm/page_64.h
@@ -169,7 +169,7 @@ do {						\
 /*
  * This is the default if a program doesn't have a PT_GNU_STACK
  * program header entry. The PPC64 ELF ABI has a non executable stack
- * stack by default, so in the absense of a PT_GNU_STACK program header
+ * stack by default, so in the absence of a PT_GNU_STACK program header
  * we turn execute permission off.
  */
 #define VM_STACK_DEFAULT_FLAGS32	(VM_READ | VM_WRITE | VM_EXEC | \
diff --git a/arch/powerpc/include/asm/pasemi_dma.h b/arch/powerpc/include/asm/pasemi_dma.h
index 19fd7933e2d9..eafa5a5f56de 100644
--- a/arch/powerpc/include/asm/pasemi_dma.h
+++ b/arch/powerpc/include/asm/pasemi_dma.h
@@ -522,7 +522,7 @@ extern void *pasemi_dma_alloc_buf(struct pasemi_dmachan *chan, int size,
 extern void pasemi_dma_free_buf(struct pasemi_dmachan *chan, int size,
 				dma_addr_t *handle);
 
-/* Routines to allocate flags (events) for channel syncronization */
+/* Routines to allocate flags (events) for channel synchronization */
 extern int  pasemi_dma_alloc_flag(void);
 extern void pasemi_dma_free_flag(int flag);
 extern void pasemi_dma_set_flag(int flag);
diff --git a/arch/powerpc/include/asm/pci-bridge.h b/arch/powerpc/include/asm/pci-bridge.h
index 5e156e034fe2..b90dbf8e5cd9 100644
--- a/arch/powerpc/include/asm/pci-bridge.h
+++ b/arch/powerpc/include/asm/pci-bridge.h
@@ -106,7 +106,7 @@ struct pci_controller {
 	 * Used for variants of PCI indirect handling and possible quirks:
 	 *  SET_CFG_TYPE - used on 4xx or any PHB that does explicit type0/1
 	 *  EXT_REG - provides access to PCI-e extended registers
-	 *  SURPRESS_PRIMARY_BUS - we surpress the setting of PCI_PRIMARY_BUS
+	 *  SURPRESS_PRIMARY_BUS - we suppress the setting of PCI_PRIMARY_BUS
 	 *   on Freescale PCI-e controllers since they used the PCI_PRIMARY_BUS
 	 *   to determine which bus number to match on when generating type0
 	 *   config cycles
diff --git a/arch/powerpc/include/asm/pmac_feature.h b/arch/powerpc/include/asm/pmac_feature.h
index 00eedc5a4e61..10902c9375d0 100644
--- a/arch/powerpc/include/asm/pmac_feature.h
+++ b/arch/powerpc/include/asm/pmac_feature.h
@@ -53,8 +53,8 @@
 
 /* Here is the infamous serie of OHare based machines
  */
-#define PMAC_TYPE_COMET			0x20	/* Beleived to be PowerBook 2400 */
-#define PMAC_TYPE_HOOPER		0x21	/* Beleived to be PowerBook 3400 */
+#define PMAC_TYPE_COMET			0x20	/* Believed to be PowerBook 2400 */
+#define PMAC_TYPE_HOOPER		0x21	/* Believed to be PowerBook 3400 */
 #define PMAC_TYPE_KANGA			0x22	/* PowerBook 3500 (first G3) */
 #define PMAC_TYPE_ALCHEMY		0x23	/* Alchemy motherboard base */
 #define PMAC_TYPE_GAZELLE		0x24	/* Spartacus, some 5xxx/6xxx */
diff --git a/arch/powerpc/include/asm/pte-common.h b/arch/powerpc/include/asm/pte-common.h
index 76bb195e4f24..811f04ac3660 100644
--- a/arch/powerpc/include/asm/pte-common.h
+++ b/arch/powerpc/include/asm/pte-common.h
@@ -86,7 +86,7 @@ extern unsigned long bad_call_to_PMD_PAGE_SIZE(void);
 #define PTE_RPN_MASK	(~((1UL<<PTE_RPN_SHIFT)-1))
 #endif
 
-/* _PAGE_CHG_MASK masks of bits that are to be preserved accross
+/* _PAGE_CHG_MASK masks of bits that are to be preserved across
  * pgprot changes
  */
 #define _PAGE_CHG_MASK	(PTE_RPN_MASK | _PAGE_HPTEFLAGS | _PAGE_DIRTY | \
@@ -174,7 +174,7 @@ extern unsigned long bad_call_to_PMD_PAGE_SIZE(void);
 /*
  * Don't just check for any non zero bits in __PAGE_USER, since for book3e
  * and PTE_64BIT, PAGE_KERNEL_X contains _PAGE_BAP_SR which is also in
- * _PAGE_USER.  Need to explictly match _PAGE_BAP_UR bit in that case too.
+ * _PAGE_USER.  Need to explicitly match _PAGE_BAP_UR bit in that case too.
  */
 #define pte_user(val)		((val & _PAGE_USER) == _PAGE_USER)
 
diff --git a/arch/powerpc/include/asm/qe_ic.h b/arch/powerpc/include/asm/qe_ic.h
index 9e2cb2019161..f706164b0bd0 100644
--- a/arch/powerpc/include/asm/qe_ic.h
+++ b/arch/powerpc/include/asm/qe_ic.h
@@ -81,7 +81,7 @@ int qe_ic_set_high_priority(unsigned int virq, unsigned int priority, int high);
 static inline void qe_ic_cascade_low_ipic(unsigned int irq,
 					  struct irq_desc *desc)
 {
-	struct qe_ic *qe_ic = get_irq_desc_data(desc);
+	struct qe_ic *qe_ic = irq_desc_get_handler_data(desc);
 	unsigned int cascade_irq = qe_ic_get_low_irq(qe_ic);
 
 	if (cascade_irq != NO_IRQ)
@@ -91,7 +91,7 @@ static inline void qe_ic_cascade_low_ipic(unsigned int irq,
 static inline void qe_ic_cascade_high_ipic(unsigned int irq,
 					   struct irq_desc *desc)
 {
-	struct qe_ic *qe_ic = get_irq_desc_data(desc);
+	struct qe_ic *qe_ic = irq_desc_get_handler_data(desc);
 	unsigned int cascade_irq = qe_ic_get_high_irq(qe_ic);
 
 	if (cascade_irq != NO_IRQ)
@@ -101,9 +101,9 @@ static inline void qe_ic_cascade_high_ipic(unsigned int irq,
 static inline void qe_ic_cascade_low_mpic(unsigned int irq,
 					  struct irq_desc *desc)
 {
-	struct qe_ic *qe_ic = get_irq_desc_data(desc);
+	struct qe_ic *qe_ic = irq_desc_get_handler_data(desc);
 	unsigned int cascade_irq = qe_ic_get_low_irq(qe_ic);
-	struct irq_chip *chip = get_irq_desc_chip(desc);
+	struct irq_chip *chip = irq_desc_get_chip(desc);
 
 	if (cascade_irq != NO_IRQ)
 		generic_handle_irq(cascade_irq);
@@ -114,9 +114,9 @@ static inline void qe_ic_cascade_low_mpic(unsigned int irq,
 static inline void qe_ic_cascade_high_mpic(unsigned int irq,
 					   struct irq_desc *desc)
 {
-	struct qe_ic *qe_ic = get_irq_desc_data(desc);
+	struct qe_ic *qe_ic = irq_desc_get_handler_data(desc);
 	unsigned int cascade_irq = qe_ic_get_high_irq(qe_ic);
-	struct irq_chip *chip = get_irq_desc_chip(desc);
+	struct irq_chip *chip = irq_desc_get_chip(desc);
 
 	if (cascade_irq != NO_IRQ)
 		generic_handle_irq(cascade_irq);
@@ -127,9 +127,9 @@ static inline void qe_ic_cascade_high_mpic(unsigned int irq,
 static inline void qe_ic_cascade_muxed_mpic(unsigned int irq,
 					    struct irq_desc *desc)
 {
-	struct qe_ic *qe_ic = get_irq_desc_data(desc);
+	struct qe_ic *qe_ic = irq_desc_get_handler_data(desc);
 	unsigned int cascade_irq;
-	struct irq_chip *chip = get_irq_desc_chip(desc);
+	struct irq_chip *chip = irq_desc_get_chip(desc);
 
 	cascade_irq = qe_ic_get_high_irq(qe_ic);
 	if (cascade_irq == NO_IRQ)
diff --git a/arch/powerpc/include/asm/reg_booke.h b/arch/powerpc/include/asm/reg_booke.h
index 86ad8128963a..b316794aa2b5 100644
--- a/arch/powerpc/include/asm/reg_booke.h
+++ b/arch/powerpc/include/asm/reg_booke.h
@@ -2,7 +2,7 @@
  * Contains register definitions common to the Book E PowerPC
  * specification.  Notice that while the IBM-40x series of CPUs
  * are not true Book E PowerPCs, they borrowed a number of features
- * before Book E was finalized, and are included here as well.  Unfortunatly,
+ * before Book E was finalized, and are included here as well.  Unfortunately,
  * they sometimes used different locations than true Book E CPUs did.
  *
  * This program is free software; you can redistribute it and/or
@@ -110,7 +110,7 @@
 #define SPRN_MAS2	0x272	/* MMU Assist Register 2 */
 #define SPRN_MAS3	0x273	/* MMU Assist Register 3 */
 #define SPRN_MAS4	0x274	/* MMU Assist Register 4 */
-#define SPRN_MAS5	0x275	/* MMU Assist Register 5 */
+#define SPRN_MAS5	0x153	/* MMU Assist Register 5 */
 #define SPRN_MAS6	0x276	/* MMU Assist Register 6 */
 #define SPRN_PID1	0x279	/* Process ID Register 1 */
 #define SPRN_PID2	0x27A	/* Process ID Register 2 */
diff --git a/arch/powerpc/include/asm/smp.h b/arch/powerpc/include/asm/smp.h
index 66e237bbe15f..a902a0d3ae0d 100644
--- a/arch/powerpc/include/asm/smp.h
+++ b/arch/powerpc/include/asm/smp.h
@@ -36,15 +36,16 @@ extern void cpu_die(void);
 
 extern void smp_send_debugger_break(int cpu);
 extern void smp_message_recv(int);
+extern void start_secondary_resume(void);
 
 DECLARE_PER_CPU(unsigned int, cpu_pvr);
 
 #ifdef CONFIG_HOTPLUG_CPU
-extern void fixup_irqs(const struct cpumask *map);
+extern void migrate_irqs(void);
 int generic_cpu_disable(void);
-int generic_cpu_enable(unsigned int cpu);
 void generic_cpu_die(unsigned int cpu);
 void generic_mach_cpu_die(void);
+void generic_set_cpu_dead(unsigned int cpu);
 #endif
 
 #ifdef CONFIG_PPC64
diff --git a/arch/powerpc/include/asm/spu_priv1.h b/arch/powerpc/include/asm/spu_priv1.h
index 25020a34ce7f..d8f5c60f61c1 100644
--- a/arch/powerpc/include/asm/spu_priv1.h
+++ b/arch/powerpc/include/asm/spu_priv1.h
@@ -223,7 +223,7 @@ spu_disable_spu (struct spu_context *ctx)
 }
 
 /*
- * The declarations folowing are put here for convenience
+ * The declarations following are put here for convenience
  * and only intended to be used by the platform setup code.
  */
 
diff --git a/arch/powerpc/include/asm/systbl.h b/arch/powerpc/include/asm/systbl.h
index aa0f1ebb4aaf..60f64b132bd4 100644
--- a/arch/powerpc/include/asm/systbl.h
+++ b/arch/powerpc/include/asm/systbl.h
@@ -348,3 +348,7 @@ COMPAT_SYS_SPU(sendmsg)
 COMPAT_SYS_SPU(recvmsg)
 COMPAT_SYS_SPU(recvmmsg)
 SYSCALL_SPU(accept4)
+SYSCALL_SPU(name_to_handle_at)
+COMPAT_SYS_SPU(open_by_handle_at)
+COMPAT_SYS_SPU(clock_adjtime)
+SYSCALL_SPU(syncfs)
diff --git a/arch/powerpc/include/asm/uninorth.h b/arch/powerpc/include/asm/uninorth.h
index f737732c3861..ae9c899c8a6d 100644
--- a/arch/powerpc/include/asm/uninorth.h
+++ b/arch/powerpc/include/asm/uninorth.h
@@ -60,7 +60,7 @@
  *
  * Obviously, the GART is not cache coherent and so any change to it
  * must be flushed to memory (or maybe just make the GART space non
- * cachable). AGP memory itself doens't seem to be cache coherent neither.
+ * cachable). AGP memory itself does't seem to be cache coherent neither.
  *
  * In order to invalidate the GART (which is probably necessary to inval
  * the bridge internal TLBs), the following sequence has to be written,
diff --git a/arch/powerpc/include/asm/unistd.h b/arch/powerpc/include/asm/unistd.h
index 6151937657f6..3c215648ce6d 100644
--- a/arch/powerpc/include/asm/unistd.h
+++ b/arch/powerpc/include/asm/unistd.h
@@ -367,10 +367,14 @@
 #define __NR_recvmsg		342
 #define __NR_recvmmsg		343
 #define __NR_accept4		344
+#define __NR_name_to_handle_at	345
+#define __NR_open_by_handle_at	346
+#define __NR_clock_adjtime	347
+#define __NR_syncfs		348
 
 #ifdef __KERNEL__
 
-#define __NR_syscalls		345
+#define __NR_syscalls		349
 
 #define __NR__exit __NR_exit
 #define NR_syscalls	__NR_syscalls
diff --git a/arch/powerpc/include/asm/vdso_datapage.h b/arch/powerpc/include/asm/vdso_datapage.h
index 25e39220e89c..b73a8199f161 100644
--- a/arch/powerpc/include/asm/vdso_datapage.h
+++ b/arch/powerpc/include/asm/vdso_datapage.h
@@ -57,7 +57,7 @@ struct vdso_data {
 	} version;
 
 	/* Note about the platform flags: it now only contains the lpar
-	 * bit. The actual platform number is dead and burried
+	 * bit. The actual platform number is dead and buried
 	 */
 	__u32 platform;			/* Platform flags		0x18 */
 	__u32 processor;		/* Processor type		0x1C */
diff --git a/arch/powerpc/kernel/btext.c b/arch/powerpc/kernel/btext.c
index 625942ae5585..60b3e377b1e4 100644
--- a/arch/powerpc/kernel/btext.c
+++ b/arch/powerpc/kernel/btext.c
@@ -99,7 +99,7 @@ void __init btext_prepare_BAT(void)
 
 /* This function can be used to enable the early boot text when doing
  * OF booting or within bootx init. It must be followed by a btext_unmap()
- * call before the logical address becomes unuseable
+ * call before the logical address becomes unusable
  */
 void __init btext_setup_display(int width, int height, int depth, int pitch,
 				unsigned long address)
diff --git a/arch/powerpc/kernel/crash.c b/arch/powerpc/kernel/crash.c
index 3d569e2aff18..3d3d416339dd 100644
--- a/arch/powerpc/kernel/crash.c
+++ b/arch/powerpc/kernel/crash.c
@@ -163,7 +163,7 @@ static void crash_kexec_prepare_cpus(int cpu)
 }
 
 /* wait for all the CPUs to hit real mode but timeout if they don't come in */
-#ifdef CONFIG_PPC_STD_MMU_64
+#if defined(CONFIG_PPC_STD_MMU_64) && defined(CONFIG_SMP)
 static void crash_kexec_wait_realmode(int cpu)
 {
 	unsigned int msecs;
@@ -188,6 +188,8 @@ static void crash_kexec_wait_realmode(int cpu)
 	}
 	mb();
 }
+#else
+static inline void crash_kexec_wait_realmode(int cpu) {}
 #endif
 
 /*
@@ -344,9 +346,7 @@ void default_machine_crash_shutdown(struct pt_regs *regs)
 	crash_save_cpu(regs, crashing_cpu);
 	crash_kexec_prepare_cpus(crashing_cpu);
 	cpu_set(crashing_cpu, cpus_in_crash);
-#if defined(CONFIG_PPC_STD_MMU_64) && defined(CONFIG_SMP)
 	crash_kexec_wait_realmode(crashing_cpu);
-#endif
 
 	machine_kexec_mask_interrupts();
 
diff --git a/arch/powerpc/kernel/dma.c b/arch/powerpc/kernel/dma.c
index cf02cad62d9a..d238c082c3c5 100644
--- a/arch/powerpc/kernel/dma.c
+++ b/arch/powerpc/kernel/dma.c
@@ -179,3 +179,21 @@ static int __init dma_init(void)
        return 0;
 }
 fs_initcall(dma_init);
+
+int dma_mmap_coherent(struct device *dev, struct vm_area_struct *vma,
+		      void *cpu_addr, dma_addr_t handle, size_t size)
+{
+	unsigned long pfn;
+
+#ifdef CONFIG_NOT_COHERENT_CACHE
+	vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
+	pfn = __dma_get_coherent_pfn((unsigned long)cpu_addr);
+#else
+	pfn = page_to_pfn(virt_to_page(cpu_addr));
+#endif
+	return remap_pfn_range(vma, vma->vm_start,
+			       pfn + vma->vm_pgoff,
+			       vma->vm_end - vma->vm_start,
+			       vma->vm_page_prot);
+}
+EXPORT_SYMBOL_GPL(dma_mmap_coherent);
diff --git a/arch/powerpc/kernel/exceptions-64e.S b/arch/powerpc/kernel/exceptions-64e.S
index 5c43063d2506..9651acc3504a 100644
--- a/arch/powerpc/kernel/exceptions-64e.S
+++ b/arch/powerpc/kernel/exceptions-64e.S
@@ -379,7 +379,7 @@ interrupt_end_book3e:
 	mfspr	r13,SPRN_SPRG_PACA	/* get our PACA */
 	b	system_call_common
 
-/* Auxillary Processor Unavailable Interrupt */
+/* Auxiliary Processor Unavailable Interrupt */
 	START_EXCEPTION(ap_unavailable);
 	NORMAL_EXCEPTION_PROLOG(0xf20, PROLOG_ADDITION_NONE)
 	EXCEPTION_COMMON(0xf20, PACA_EXGEN, INTS_KEEP)
diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S
index 8a817995b4cd..aeb739e18769 100644
--- a/arch/powerpc/kernel/exceptions-64s.S
+++ b/arch/powerpc/kernel/exceptions-64s.S
@@ -5,7 +5,7 @@
  * handling and other fixed offset specific things.
  *
  * This file is meant to be #included from head_64.S due to
- * position dependant assembly.
+ * position dependent assembly.
  *
  * Most of this originates from head_64.S and thus has the same
  * copyright history.
@@ -977,20 +977,6 @@ _GLOBAL(do_stab_bolted)
 	rfid
 	b	.	/* prevent speculative execution */
 
-/*
- * Space for CPU0's segment table.
- *
- * On iSeries, the hypervisor must fill in at least one entry before
- * we get control (with relocate on).  The address is given to the hv
- * as a page number (see xLparMap below), so this must be at a
- * fixed address (the linker can't compute (u64)&initial_stab >>
- * PAGE_SHIFT).
- */
-	. = STAB0_OFFSET	/* 0x6000 */
-	.globl initial_stab
-initial_stab:
-	.space	4096
-
 #ifdef CONFIG_PPC_PSERIES
 /*
  * Data area reserved for FWNMI option.
@@ -1027,3 +1013,17 @@ xLparMap:
 #ifdef CONFIG_PPC_PSERIES
         . = 0x8000
 #endif /* CONFIG_PPC_PSERIES */
+
+/*
+ * Space for CPU0's segment table.
+ *
+ * On iSeries, the hypervisor must fill in at least one entry before
+ * we get control (with relocate on).  The address is given to the hv
+ * as a page number (see xLparMap above), so this must be at a
+ * fixed address (the linker can't compute (u64)&initial_stab >>
+ * PAGE_SHIFT).
+ */
+	. = STAB0_OFFSET	/* 0x8000 */
+	.globl initial_stab
+initial_stab:
+	.space	4096
diff --git a/arch/powerpc/kernel/head_32.S b/arch/powerpc/kernel/head_32.S
index 98c4b29a56f4..c5c24beb8387 100644
--- a/arch/powerpc/kernel/head_32.S
+++ b/arch/powerpc/kernel/head_32.S
@@ -890,6 +890,15 @@ __secondary_start:
 	mtspr	SPRN_SRR1,r4
 	SYNC
 	RFI
+
+_GLOBAL(start_secondary_resume)
+	/* Reset stack */
+	rlwinm	r1,r1,0,0,(31-THREAD_SHIFT)	/* current_thread_info() */
+	addi	r1,r1,THREAD_SIZE-STACK_FRAME_OVERHEAD
+	li	r3,0
+	std	r3,0(r1)		/* Zero the stack frame pointer	*/
+	bl	start_secondary
+	b	.
 #endif /* CONFIG_SMP */
 
 #ifdef CONFIG_KVM_BOOK3S_HANDLER
diff --git a/arch/powerpc/kernel/head_40x.S b/arch/powerpc/kernel/head_40x.S
index 9dd21a8c4d52..a91626d87fc9 100644
--- a/arch/powerpc/kernel/head_40x.S
+++ b/arch/powerpc/kernel/head_40x.S
@@ -766,7 +766,7 @@ DataAccess:
 	 * miss get to this point to load the TLB.
 	 * 	r10 - TLB_TAG value
 	 * 	r11 - Linux PTE
-	 *	r12, r9 - avilable to use
+	 *	r12, r9 - available to use
 	 *	PID - loaded with proper value when we get here
 	 *	Upon exit, we reload everything and RFI.
 	 * Actually, it will fit now, but oh well.....a common place
diff --git a/arch/powerpc/kernel/head_44x.S b/arch/powerpc/kernel/head_44x.S
index cbb3436b592d..5e12b741ba5f 100644
--- a/arch/powerpc/kernel/head_44x.S
+++ b/arch/powerpc/kernel/head_44x.S
@@ -178,7 +178,7 @@ interrupt_base:
 	NORMAL_EXCEPTION_PROLOG
 	EXC_XFER_EE_LITE(0x0c00, DoSyscall)
 
-	/* Auxillary Processor Unavailable Interrupt */
+	/* Auxiliary Processor Unavailable Interrupt */
 	EXCEPTION(0x2020, AuxillaryProcessorUnavailable, unknown_exception, EXC_XFER_EE)
 
 	/* Decrementer Interrupt */
diff --git a/arch/powerpc/kernel/head_64.S b/arch/powerpc/kernel/head_64.S
index 782f23df7c85..3a319f9c9d3e 100644
--- a/arch/powerpc/kernel/head_64.S
+++ b/arch/powerpc/kernel/head_64.S
@@ -40,7 +40,7 @@
 #include <asm/kvm_book3s_asm.h>
 #include <asm/ptrace.h>
 
-/* The physical memory is layed out such that the secondary processor
+/* The physical memory is laid out such that the secondary processor
  * spin code sits at 0x0000...0x00ff. On server, the vectors follow
  * using the layout described in exceptions-64s.S
  */
@@ -536,6 +536,13 @@ _GLOBAL(pmac_secondary_start)
 	add	r13,r13,r4		/* for this processor.		*/
 	mtspr	SPRN_SPRG_PACA,r13	/* Save vaddr of paca in an SPRG*/
 
+	/* Mark interrupts soft and hard disabled (they might be enabled
+	 * in the PACA when doing hotplug)
+	 */
+	li	r0,0
+	stb	r0,PACASOFTIRQEN(r13)
+	stb	r0,PACAHARDIRQEN(r13)
+
 	/* Create a temp kernel stack for use before relocation is on.	*/
 	ld	r1,PACAEMERGSP(r13)
 	subi	r1,r1,STACK_FRAME_OVERHEAD
diff --git a/arch/powerpc/kernel/head_fsl_booke.S b/arch/powerpc/kernel/head_fsl_booke.S
index 3e02710d9562..5ecf54cfa7d4 100644
--- a/arch/powerpc/kernel/head_fsl_booke.S
+++ b/arch/powerpc/kernel/head_fsl_booke.S
@@ -326,7 +326,7 @@ interrupt_base:
 	NORMAL_EXCEPTION_PROLOG
 	EXC_XFER_EE_LITE(0x0c00, DoSyscall)
 
-	/* Auxillary Processor Unavailable Interrupt */
+	/* Auxiliary Processor Unavailable Interrupt */
 	EXCEPTION(0x2900, AuxillaryProcessorUnavailable, unknown_exception, EXC_XFER_EE)
 
 	/* Decrementer Interrupt */
diff --git a/arch/powerpc/kernel/idle_power4.S b/arch/powerpc/kernel/idle_power4.S
index 5328709eeedc..ba3195478600 100644
--- a/arch/powerpc/kernel/idle_power4.S
+++ b/arch/powerpc/kernel/idle_power4.S
@@ -53,24 +53,3 @@ END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
 	isync
 	b	1b
 
-_GLOBAL(power4_cpu_offline_powersave)
-	/* Go to NAP now */
-	mfmsr	r7
-	rldicl	r0,r7,48,1
-	rotldi	r0,r0,16
-	mtmsrd	r0,1			/* hard-disable interrupts */
-	li	r0,1
-	li	r6,0
-	stb	r0,PACAHARDIRQEN(r13)	/* we'll hard-enable shortly */
-	stb	r6,PACASOFTIRQEN(r13)	/* soft-disable irqs */
-BEGIN_FTR_SECTION
-	DSSALL
-	sync
-END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
-	ori	r7,r7,MSR_EE
-	oris	r7,r7,MSR_POW@h
-	sync
-	isync
-	mtmsrd	r7
-	isync
-	blr
diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index 0a5570338b96..f621b7d2d869 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -195,7 +195,7 @@ notrace void arch_local_irq_restore(unsigned long en)
 EXPORT_SYMBOL(arch_local_irq_restore);
 #endif /* CONFIG_PPC64 */
 
-static int show_other_interrupts(struct seq_file *p, int prec)
+int arch_show_interrupts(struct seq_file *p, int prec)
 {
 	int j;
 
@@ -231,65 +231,6 @@ static int show_other_interrupts(struct seq_file *p, int prec)
 	return 0;
 }
 
-int show_interrupts(struct seq_file *p, void *v)
-{
-	unsigned long flags, any_count = 0;
-	int i = *(loff_t *) v, j, prec;
-	struct irqaction *action;
-	struct irq_desc *desc;
-	struct irq_chip *chip;
-
-	if (i > nr_irqs)
-		return 0;
-
-	for (prec = 3, j = 1000; prec < 10 && j <= nr_irqs; ++prec)
-		j *= 10;
-
-	if (i == nr_irqs)
-		return show_other_interrupts(p, prec);
-
-	/* print header */
-	if (i == 0) {
-		seq_printf(p, "%*s", prec + 8, "");
-		for_each_online_cpu(j)
-			seq_printf(p, "CPU%-8d", j);
-		seq_putc(p, '\n');
-	}
-
-	desc = irq_to_desc(i);
-	if (!desc)
-		return 0;
-
-	raw_spin_lock_irqsave(&desc->lock, flags);
-	for_each_online_cpu(j)
-		any_count |= kstat_irqs_cpu(i, j);
-	action = desc->action;
-	if (!action && !any_count)
-		goto out;
-
-	seq_printf(p, "%*d: ", prec, i);
-	for_each_online_cpu(j)
-		seq_printf(p, "%10u ", kstat_irqs_cpu(i, j));
-
-	chip = get_irq_desc_chip(desc);
-	if (chip)
-		seq_printf(p, "  %-16s", chip->name);
-	else
-		seq_printf(p, "  %-16s", "None");
-	seq_printf(p, " %-8s", (desc->status & IRQ_LEVEL) ? "Level" : "Edge");
-
-	if (action) {
-		seq_printf(p, "     %s", action->name);
-		while ((action = action->next) != NULL)
-			seq_printf(p, ", %s", action->name);
-	}
-
-	seq_putc(p, '\n');
-out:
-	raw_spin_unlock_irqrestore(&desc->lock, flags);
-	return 0;
-}
-
 /*
  * /proc/stat helpers
  */
@@ -305,34 +246,37 @@ u64 arch_irq_stat_cpu(unsigned int cpu)
 }
 
 #ifdef CONFIG_HOTPLUG_CPU
-void fixup_irqs(const struct cpumask *map)
+void migrate_irqs(void)
 {
 	struct irq_desc *desc;
 	unsigned int irq;
 	static int warned;
 	cpumask_var_t mask;
+	const struct cpumask *map = cpu_online_mask;
 
 	alloc_cpumask_var(&mask, GFP_KERNEL);
 
 	for_each_irq(irq) {
+		struct irq_data *data;
 		struct irq_chip *chip;
 
 		desc = irq_to_desc(irq);
 		if (!desc)
 			continue;
 
-		if (desc->status & IRQ_PER_CPU)
+		data = irq_desc_get_irq_data(desc);
+		if (irqd_is_per_cpu(data))
 			continue;
 
-		chip = get_irq_desc_chip(desc);
+		chip = irq_data_get_irq_chip(data);
 
-		cpumask_and(mask, desc->irq_data.affinity, map);
+		cpumask_and(mask, data->affinity, map);
 		if (cpumask_any(mask) >= nr_cpu_ids) {
 			printk("Breaking affinity for irq %i\n", irq);
 			cpumask_copy(mask, map);
 		}
 		if (chip->irq_set_affinity)
-			chip->irq_set_affinity(&desc->irq_data, mask, true);
+			chip->irq_set_affinity(data, mask, true);
 		else if (desc->action && !(warned++))
 			printk("Cannot set affinity for irq %i\n", irq);
 	}
@@ -618,7 +562,7 @@ struct irq_host *irq_alloc_host(struct device_node *of_node,
 			smp_wmb();
 
 			/* Clear norequest flags */
-			irq_to_desc(i)->status &= ~IRQ_NOREQUEST;
+			irq_clear_status_flags(i, IRQ_NOREQUEST);
 
 			/* Legacy flags are left to default at this point,
 			 * one can then use irq_create_mapping() to
@@ -827,8 +771,8 @@ unsigned int irq_create_of_mapping(struct device_node *controller,
 
 	/* Set type if specified and different than the current one */
 	if (type != IRQ_TYPE_NONE &&
-	    type != (irq_to_desc(virq)->status & IRQF_TRIGGER_MASK))
-		set_irq_type(virq, type);
+	    type != (irqd_get_trigger_type(irq_get_irq_data(virq))))
+		irq_set_irq_type(virq, type);
 	return virq;
 }
 EXPORT_SYMBOL_GPL(irq_create_of_mapping);
@@ -851,7 +795,7 @@ void irq_dispose_mapping(unsigned int virq)
 		return;
 
 	/* remove chip and handler */
-	set_irq_chip_and_handler(virq, NULL, NULL);
+	irq_set_chip_and_handler(virq, NULL, NULL);
 
 	/* Make sure it's completed */
 	synchronize_irq(virq);
@@ -1156,7 +1100,7 @@ static int virq_debug_show(struct seq_file *m, void *private)
 			seq_printf(m, "%5d  ", i);
 			seq_printf(m, "0x%05lx  ", virq_to_hw(i));
 
-			chip = get_irq_desc_chip(desc);
+			chip = irq_desc_get_chip(desc);
 			if (chip && chip->name)
 				p = chip->name;
 			else
diff --git a/arch/powerpc/kernel/l2cr_6xx.S b/arch/powerpc/kernel/l2cr_6xx.S
index 2a2f3c3f6d80..97ec8557f974 100644
--- a/arch/powerpc/kernel/l2cr_6xx.S
+++ b/arch/powerpc/kernel/l2cr_6xx.S
@@ -151,7 +151,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
 	 /**** Might be a good idea to set L2DO here - to prevent instructions
 	       from getting into the cache.  But since we invalidate
 	       the next time we enable the cache it doesn't really matter.
-	       Don't do this unless you accomodate all processor variations.
+	       Don't do this unless you accommodate all processor variations.
 	       The bit moved on the 7450.....
 	  ****/
 
diff --git a/arch/powerpc/kernel/lparcfg.c b/arch/powerpc/kernel/lparcfg.c
index 16468362ad57..301db65f05a1 100644
--- a/arch/powerpc/kernel/lparcfg.c
+++ b/arch/powerpc/kernel/lparcfg.c
@@ -262,7 +262,7 @@ static void parse_ppp_data(struct seq_file *m)
 	seq_printf(m, "system_active_processors=%d\n",
 	           ppp_data.active_system_procs);
 
-	/* pool related entries are apropriate for shared configs */
+	/* pool related entries are appropriate for shared configs */
 	if (lppaca_of(0).shared_proc) {
 		unsigned long pool_idle_time, pool_procs;
 
diff --git a/arch/powerpc/kernel/machine_kexec.c b/arch/powerpc/kernel/machine_kexec.c
index bd1e1ff17b2d..7ee50f0547cb 100644
--- a/arch/powerpc/kernel/machine_kexec.c
+++ b/arch/powerpc/kernel/machine_kexec.c
@@ -31,17 +31,17 @@ void machine_kexec_mask_interrupts(void) {
 		if (!desc)
 			continue;
 
-		chip = get_irq_desc_chip(desc);
+		chip = irq_desc_get_chip(desc);
 		if (!chip)
 			continue;
 
-		if (chip->irq_eoi && desc->status & IRQ_INPROGRESS)
+		if (chip->irq_eoi && irqd_irq_inprogress(&desc->irq_data))
 			chip->irq_eoi(&desc->irq_data);
 
 		if (chip->irq_mask)
 			chip->irq_mask(&desc->irq_data);
 
-		if (chip->irq_disable && !(desc->status & IRQ_DISABLED))
+		if (chip->irq_disable && !irqd_irq_disabled(&desc->irq_data))
 			chip->irq_disable(&desc->irq_data);
 	}
 }
diff --git a/arch/powerpc/kernel/paca.c b/arch/powerpc/kernel/paca.c
index f4adf89d7614..10f0aadee95b 100644
--- a/arch/powerpc/kernel/paca.c
+++ b/arch/powerpc/kernel/paca.c
@@ -203,7 +203,7 @@ void __init free_unused_pacas(void)
 {
 	int new_size;
 
-	new_size = PAGE_ALIGN(sizeof(struct paca_struct) * num_possible_cpus());
+	new_size = PAGE_ALIGN(sizeof(struct paca_struct) * nr_cpu_ids);
 
 	if (new_size >= paca_size)
 		return;
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index 3cd85faa8ac6..893af2a9cd03 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -261,7 +261,7 @@ int pci_read_irq_line(struct pci_dev *pci_dev)
 
 		virq = irq_create_mapping(NULL, line);
 		if (virq != NO_IRQ)
-			set_irq_type(virq, IRQ_TYPE_LEVEL_LOW);
+			irq_set_irq_type(virq, IRQ_TYPE_LEVEL_LOW);
 	} else {
 		pr_debug(" Got one, spec %d cells (0x%08x 0x%08x...) on %s\n",
 			 oirq.size, oirq.specifier[0], oirq.specifier[1],
diff --git a/arch/powerpc/kernel/perf_event.c b/arch/powerpc/kernel/perf_event.c
index 97e0ae414940..c4063b7f49a0 100644
--- a/arch/powerpc/kernel/perf_event.c
+++ b/arch/powerpc/kernel/perf_event.c
@@ -759,7 +759,7 @@ static int power_pmu_add(struct perf_event *event, int ef_flags)
 
 	/*
 	 * If group events scheduling transaction was started,
-	 * skip the schedulability test here, it will be peformed
+	 * skip the schedulability test here, it will be performed
 	 * at commit time(->commit_txn) as a whole
 	 */
 	if (cpuhw->group_flag & PERF_EVENT_TXN)
diff --git a/arch/powerpc/kernel/ppc_save_regs.S b/arch/powerpc/kernel/ppc_save_regs.S
index e83ba3f078e4..1b1787d52896 100644
--- a/arch/powerpc/kernel/ppc_save_regs.S
+++ b/arch/powerpc/kernel/ppc_save_regs.S
@@ -15,7 +15,7 @@
 
 /*
  * Grab the register values as they are now.
- * This won't do a particularily good job because we really
+ * This won't do a particularly good job because we really
  * want our caller's caller's registers, and our caller has
  * already executed its prologue.
  * ToDo: We could reach back into the caller's save area to do
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index 05b7139d6a27..e74fa12afc82 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -683,7 +683,7 @@ void __init early_init_devtree(void *params)
 #endif
 
 #ifdef CONFIG_PHYP_DUMP
-	/* scan tree to see if dump occured during last boot */
+	/* scan tree to see if dump occurred during last boot */
 	of_scan_flat_dt(early_init_dt_scan_phyp_dump, NULL);
 #endif
 
@@ -739,7 +739,7 @@ void __init early_init_devtree(void *params)
 
 	DBG("Scanning CPUs ...\n");
 
-	/* Retreive CPU related informations from the flat tree
+	/* Retrieve CPU related informations from the flat tree
 	 * (altivec support, boot CPU ID, ...)
 	 */
 	of_scan_flat_dt(early_init_dt_scan_cpus, NULL);
diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c
index 895b082f1e48..55613e33e263 100644
--- a/arch/powerpc/kernel/ptrace.c
+++ b/arch/powerpc/kernel/ptrace.c
@@ -463,7 +463,7 @@ static int vr_set(struct task_struct *target, const struct user_regset *regset,
 #ifdef CONFIG_VSX
 /*
  * Currently to set and and get all the vsx state, you need to call
- * the fp and VMX calls aswell.  This only get/sets the lower 32
+ * the fp and VMX calls as well.  This only get/sets the lower 32
  * 128bit VSX registers.
  */
 
diff --git a/arch/powerpc/kernel/rtasd.c b/arch/powerpc/kernel/rtasd.c
index 7980ec0e1e1a..67f6c3b51357 100644
--- a/arch/powerpc/kernel/rtasd.c
+++ b/arch/powerpc/kernel/rtasd.c
@@ -465,7 +465,7 @@ static void start_event_scan(void)
 	pr_debug("rtasd: will sleep for %d milliseconds\n",
 		 (30000 / rtas_event_scan_rate));
 
-	/* Retreive errors from nvram if any */
+	/* Retrieve errors from nvram if any */
 	retreive_nvram_error_log();
 
 	schedule_delayed_work_on(cpumask_first(cpu_online_mask),
diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
index 9d4882a46647..21f30cb68077 100644
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -509,6 +509,9 @@ void __init smp_setup_cpu_maps(void)
 	 */
 	cpu_init_thread_core_maps(nthreads);
 
+	/* Now that possible cpus are set, set nr_cpu_ids for later use */
+	nr_cpu_ids = find_last_bit(cpumask_bits(cpu_possible_mask),NR_CPUS) + 1;
+
 	free_unused_pacas();
 }
 #endif /* CONFIG_SMP */
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
index 981360509172..cbdbb14be4b0 100644
--- a/arch/powerpc/kernel/smp.c
+++ b/arch/powerpc/kernel/smp.c
@@ -57,6 +57,25 @@
 #define DBG(fmt...)
 #endif
 
+
+/* Store all idle threads, this can be reused instead of creating
+* a new thread. Also avoids complicated thread destroy functionality
+* for idle threads.
+*/
+#ifdef CONFIG_HOTPLUG_CPU
+/*
+ * Needed only for CONFIG_HOTPLUG_CPU because __cpuinitdata is
+ * removed after init for !CONFIG_HOTPLUG_CPU.
+ */
+static DEFINE_PER_CPU(struct task_struct *, idle_thread_array);
+#define get_idle_for_cpu(x)      (per_cpu(idle_thread_array, x))
+#define set_idle_for_cpu(x, p)   (per_cpu(idle_thread_array, x) = (p))
+#else
+static struct task_struct *idle_thread_array[NR_CPUS] __cpuinitdata ;
+#define get_idle_for_cpu(x)      (idle_thread_array[(x)])
+#define set_idle_for_cpu(x, p)   (idle_thread_array[(x)] = (p))
+#endif
+
 struct thread_info *secondary_ti;
 
 DEFINE_PER_CPU(cpumask_var_t, cpu_sibling_map);
@@ -238,23 +257,6 @@ static void __devinit smp_store_cpu_info(int id)
 	per_cpu(cpu_pvr, id) = mfspr(SPRN_PVR);
 }
 
-static void __init smp_create_idle(unsigned int cpu)
-{
-	struct task_struct *p;
-
-	/* create a process for the processor */
-	p = fork_idle(cpu);
-	if (IS_ERR(p))
-		panic("failed fork for CPU %u: %li", cpu, PTR_ERR(p));
-#ifdef CONFIG_PPC64
-	paca[cpu].__current = p;
-	paca[cpu].kstack = (unsigned long) task_thread_info(p)
-		+ THREAD_SIZE - STACK_FRAME_OVERHEAD;
-#endif
-	current_set[cpu] = task_thread_info(p);
-	task_thread_info(p)->cpu = cpu;
-}
-
 void __init smp_prepare_cpus(unsigned int max_cpus)
 {
 	unsigned int cpu;
@@ -288,10 +290,6 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
 			max_cpus = NR_CPUS;
 	else
 		max_cpus = 1;
-
-	for_each_possible_cpu(cpu)
-		if (cpu != boot_cpuid)
-			smp_create_idle(cpu);
 }
 
 void __devinit smp_prepare_boot_cpu(void)
@@ -305,7 +303,7 @@ void __devinit smp_prepare_boot_cpu(void)
 
 #ifdef CONFIG_HOTPLUG_CPU
 /* State of each CPU during hotplug phases */
-DEFINE_PER_CPU(int, cpu_state) = { 0 };
+static DEFINE_PER_CPU(int, cpu_state) = { 0 };
 
 int generic_cpu_disable(void)
 {
@@ -317,30 +315,8 @@ int generic_cpu_disable(void)
 	set_cpu_online(cpu, false);
 #ifdef CONFIG_PPC64
 	vdso_data->processorCount--;
-	fixup_irqs(cpu_online_mask);
-#endif
-	return 0;
-}
-
-int generic_cpu_enable(unsigned int cpu)
-{
-	/* Do the normal bootup if we haven't
-	 * already bootstrapped. */
-	if (system_state != SYSTEM_RUNNING)
-		return -ENOSYS;
-
-	/* get the target out of it's holding state */
-	per_cpu(cpu_state, cpu) = CPU_UP_PREPARE;
-	smp_wmb();
-
-	while (!cpu_online(cpu))
-		cpu_relax();
-
-#ifdef CONFIG_PPC64
-	fixup_irqs(cpu_online_mask);
-	/* counter the irq disable in fixup_irqs */
-	local_irq_enable();
 #endif
+	migrate_irqs();
 	return 0;
 }
 
@@ -362,37 +338,89 @@ void generic_mach_cpu_die(void)
 	unsigned int cpu;
 
 	local_irq_disable();
+	idle_task_exit();
 	cpu = smp_processor_id();
 	printk(KERN_DEBUG "CPU%d offline\n", cpu);
 	__get_cpu_var(cpu_state) = CPU_DEAD;
 	smp_wmb();
 	while (__get_cpu_var(cpu_state) != CPU_UP_PREPARE)
 		cpu_relax();
-	set_cpu_online(cpu, true);
-	local_irq_enable();
+}
+
+void generic_set_cpu_dead(unsigned int cpu)
+{
+	per_cpu(cpu_state, cpu) = CPU_DEAD;
 }
 #endif
 
-static int __devinit cpu_enable(unsigned int cpu)
+struct create_idle {
+	struct work_struct work;
+	struct task_struct *idle;
+	struct completion done;
+	int cpu;
+};
+
+static void __cpuinit do_fork_idle(struct work_struct *work)
 {
-	if (smp_ops && smp_ops->cpu_enable)
-		return smp_ops->cpu_enable(cpu);
+	struct create_idle *c_idle =
+		container_of(work, struct create_idle, work);
+
+	c_idle->idle = fork_idle(c_idle->cpu);
+	complete(&c_idle->done);
+}
+
+static int __cpuinit create_idle(unsigned int cpu)
+{
+	struct thread_info *ti;
+	struct create_idle c_idle = {
+		.cpu	= cpu,
+		.done	= COMPLETION_INITIALIZER_ONSTACK(c_idle.done),
+	};
+	INIT_WORK_ONSTACK(&c_idle.work, do_fork_idle);
+
+	c_idle.idle = get_idle_for_cpu(cpu);
+
+	/* We can't use kernel_thread since we must avoid to
+	 * reschedule the child. We use a workqueue because
+	 * we want to fork from a kernel thread, not whatever
+	 * userspace process happens to be trying to online us.
+	 */
+	if (!c_idle.idle) {
+		schedule_work(&c_idle.work);
+		wait_for_completion(&c_idle.done);
+	} else
+		init_idle(c_idle.idle, cpu);
+	if (IS_ERR(c_idle.idle)) {		
+		pr_err("Failed fork for CPU %u: %li", cpu, PTR_ERR(c_idle.idle));
+		return PTR_ERR(c_idle.idle);
+	}
+	ti = task_thread_info(c_idle.idle);
+
+#ifdef CONFIG_PPC64
+	paca[cpu].__current = c_idle.idle;
+	paca[cpu].kstack = (unsigned long)ti + THREAD_SIZE - STACK_FRAME_OVERHEAD;
+#endif
+	ti->cpu = cpu;
+	current_set[cpu] = ti;
 
-	return -ENOSYS;
+	return 0;
 }
 
 int __cpuinit __cpu_up(unsigned int cpu)
 {
-	int c;
+	int rc, c;
 
 	secondary_ti = current_set[cpu];
-	if (!cpu_enable(cpu))
-		return 0;
 
 	if (smp_ops == NULL ||
 	    (smp_ops->cpu_bootable && !smp_ops->cpu_bootable(cpu)))
 		return -EINVAL;
 
+	/* Make sure we have an idle thread */
+	rc = create_idle(cpu);
+	if (rc)
+		return rc;
+
 	/* Make sure callin-map entry is 0 (can be leftover a CPU
 	 * hotplug
 	 */
@@ -502,7 +530,7 @@ static struct device_node *cpu_to_l2cache(int cpu)
 }
 
 /* Activate a secondary processor. */
-int __devinit start_secondary(void *unused)
+void __devinit start_secondary(void *unused)
 {
 	unsigned int cpu = smp_processor_id();
 	struct device_node *l2_cache;
@@ -523,6 +551,10 @@ int __devinit start_secondary(void *unused)
 
 	secondary_cpu_time_init();
 
+#ifdef CONFIG_PPC64
+	if (system_state == SYSTEM_RUNNING)
+		vdso_data->processorCount++;
+#endif
 	ipi_call_lock();
 	notify_cpu_starting(cpu);
 	set_cpu_online(cpu, true);
@@ -558,7 +590,8 @@ int __devinit start_secondary(void *unused)
 	local_irq_enable();
 
 	cpu_idle();
-	return 0;
+
+	BUG();
 }
 
 int setup_profiling_timer(unsigned int multiplier)
@@ -585,7 +618,11 @@ void __init smp_cpus_done(unsigned int max_cpus)
 
 	free_cpumask_var(old_mask);
 
+	if (smp_ops && smp_ops->bringup_done)
+		smp_ops->bringup_done();
+
 	dump_numa_cpu_topology();
+
 }
 
 int arch_sd_sibling_asym_packing(void)
@@ -660,5 +697,9 @@ void cpu_die(void)
 {
 	if (ppc_md.cpu_die)
 		ppc_md.cpu_die();
+
+	/* If we return, we re-enter start_secondary */
+	start_secondary_resume();
 }
+
 #endif
diff --git a/arch/powerpc/kernel/swsusp_32.S b/arch/powerpc/kernel/swsusp_32.S
index b0754e237438..ba4dee3d233f 100644
--- a/arch/powerpc/kernel/swsusp_32.S
+++ b/arch/powerpc/kernel/swsusp_32.S
@@ -143,7 +143,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
 
 	/* Disable MSR:DR to make sure we don't take a TLB or
 	 * hash miss during the copy, as our hash table will
-	 * for a while be unuseable. For .text, we assume we are
+	 * for a while be unusable. For .text, we assume we are
 	 * covered by a BAT. This works only for non-G5 at this
 	 * point. G5 will need a better approach, possibly using
 	 * a small temporary hash table filled with large mappings,
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index 09d31dbf43f9..375480c56eb9 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -356,7 +356,7 @@ void account_system_vtime(struct task_struct *tsk)
 	}
 	get_paca()->user_time_scaled += user_scaled;
 
-	if (in_irq() || idle_task(smp_processor_id()) != tsk) {
+	if (in_interrupt() || idle_task(smp_processor_id()) != tsk) {
 		account_system_time(tsk, 0, delta, sys_scaled);
 		if (stolen)
 			account_steal_time(stolen);
@@ -577,14 +577,21 @@ void timer_interrupt(struct pt_regs * regs)
 	struct clock_event_device *evt = &decrementer->event;
 	u64 now;
 
+	/* Ensure a positive value is written to the decrementer, or else
+	 * some CPUs will continue to take decrementer exceptions.
+	 */
+	set_dec(DECREMENTER_MAX);
+
+	/* Some implementations of hotplug will get timer interrupts while
+	 * offline, just ignore these
+	 */
+	if (!cpu_online(smp_processor_id()))
+		return;
+
 	trace_timer_interrupt_entry(regs);
 
 	__get_cpu_var(irq_stat).timer_irqs++;
 
-	/* Ensure a positive value is written to the decrementer, or else
-	 * some CPUs will continuue to take decrementer exceptions */
-	set_dec(DECREMENTER_MAX);
-
 #if defined(CONFIG_PPC32) && defined(CONFIG_PMAC)
 	if (atomic_read(&ppc_n_lost_interrupts) != 0)
 		do_IRQ(regs);
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
index bd74fac169be..5ddb801bc154 100644
--- a/arch/powerpc/kernel/traps.c
+++ b/arch/powerpc/kernel/traps.c
@@ -959,7 +959,7 @@ void __kprobes program_check_exception(struct pt_regs *regs)
 	 * ESR_DST (!?) or 0.  In the process of chasing this with the
 	 * hardware people - not sure if it can happen on any illegal
 	 * instruction or only on FP instructions, whether there is a
-	 * pattern to occurences etc. -dgibson 31/Mar/2003 */
+	 * pattern to occurrences etc. -dgibson 31/Mar/2003 */
 	switch (do_mathemu(regs)) {
 	case 0:
 		emulate_single_step(regs);
diff --git a/arch/powerpc/kernel/udbg_16550.c b/arch/powerpc/kernel/udbg_16550.c
index b4b167b33643..baa33a7517bc 100644
--- a/arch/powerpc/kernel/udbg_16550.c
+++ b/arch/powerpc/kernel/udbg_16550.c
@@ -1,5 +1,5 @@
 /*
- * udbg for NS16550 compatable serial ports
+ * udbg for NS16550 compatible serial ports
  *
  * Copyright (C) 2001-2005 PPC 64 Team, IBM Corp
  *
diff --git a/arch/powerpc/kernel/vdso32/sigtramp.S b/arch/powerpc/kernel/vdso32/sigtramp.S
index 68d49dd71dcc..cf0c9c9c24f9 100644
--- a/arch/powerpc/kernel/vdso32/sigtramp.S
+++ b/arch/powerpc/kernel/vdso32/sigtramp.S
@@ -19,7 +19,7 @@
 
 /* The nop here is a hack.  The dwarf2 unwind routines subtract 1 from
    the return address to get an address in the middle of the presumed
-   call instruction.  Since we don't have a call here, we artifically
+   call instruction.  Since we don't have a call here, we artificially
    extend the range covered by the unwind info by adding a nop before
    the real start.  */
 	nop
diff --git a/arch/powerpc/kernel/vdso64/sigtramp.S b/arch/powerpc/kernel/vdso64/sigtramp.S
index 59eb59bb4082..45ea281e9a21 100644
--- a/arch/powerpc/kernel/vdso64/sigtramp.S
+++ b/arch/powerpc/kernel/vdso64/sigtramp.S
@@ -20,7 +20,7 @@
 
 /* The nop here is a hack.  The dwarf2 unwind routines subtract 1 from
    the return address to get an address in the middle of the presumed
-   call instruction.  Since we don't have a call here, we artifically
+   call instruction.  Since we don't have a call here, we artificially
    extend the range covered by the unwind info by padding before the
    real start.  */
 	nop
diff --git a/arch/powerpc/mm/dma-noncoherent.c b/arch/powerpc/mm/dma-noncoherent.c
index 757c0bed9a91..b42f76c4948d 100644
--- a/arch/powerpc/mm/dma-noncoherent.c
+++ b/arch/powerpc/mm/dma-noncoherent.c
@@ -399,3 +399,23 @@ void __dma_sync_page(struct page *page, unsigned long offset,
 #endif
 }
 EXPORT_SYMBOL(__dma_sync_page);
+
+/*
+ * Return the PFN for a given cpu virtual address returned by
+ * __dma_alloc_coherent. This is used by dma_mmap_coherent()
+ */
+unsigned long __dma_get_coherent_pfn(unsigned long cpu_addr)
+{
+	/* This should always be populated, so we don't test every
+	 * level. If that fails, we'll have a nice crash which
+	 * will be as good as a BUG_ON()
+	 */
+	pgd_t *pgd = pgd_offset_k(cpu_addr);
+	pud_t *pud = pud_offset(pgd, cpu_addr);
+	pmd_t *pmd = pmd_offset(pud, cpu_addr);
+	pte_t *ptep = pte_offset_kernel(pmd, cpu_addr);
+
+	if (pte_none(*ptep) || !pte_present(*ptep))
+		return 0;
+	return pte_pfn(*ptep);
+}
diff --git a/arch/powerpc/mm/hash_low_64.S b/arch/powerpc/mm/hash_low_64.S
index 3079f6b44cf5..5b7dd4ea02b5 100644
--- a/arch/powerpc/mm/hash_low_64.S
+++ b/arch/powerpc/mm/hash_low_64.S
@@ -192,8 +192,8 @@ htab_insert_pte:
 	rldicr	r3,r0,3,63-3		/* r3 = (hash & mask) << 3 */
 
 	/* Call ppc_md.hpte_insert */
-	ld	r6,STK_PARM(r4)(r1)	/* Retreive new pp bits */
-	mr	r4,r29			/* Retreive va */
+	ld	r6,STK_PARM(r4)(r1)	/* Retrieve new pp bits */
+	mr	r4,r29			/* Retrieve va */
 	li	r7,0			/* !bolted, !secondary */
 	li	r8,MMU_PAGE_4K		/* page size */
 	ld	r9,STK_PARM(r9)(r1)	/* segment size */
@@ -215,8 +215,8 @@ _GLOBAL(htab_call_hpte_insert1)
 	rldicr	r3,r0,3,63-3	/* r0 = (~hash & mask) << 3 */
 	
 	/* Call ppc_md.hpte_insert */
-	ld	r6,STK_PARM(r4)(r1)	/* Retreive new pp bits */
-	mr	r4,r29			/* Retreive va */
+	ld	r6,STK_PARM(r4)(r1)	/* Retrieve new pp bits */
+	mr	r4,r29			/* Retrieve va */
 	li	r7,HPTE_V_SECONDARY	/* !bolted, secondary */
 	li	r8,MMU_PAGE_4K		/* page size */
 	ld	r9,STK_PARM(r9)(r1)	/* segment size */
@@ -495,8 +495,8 @@ htab_special_pfn:
 	rldicr	r3,r0,3,63-3		/* r0 = (hash & mask) << 3 */
 
 	/* Call ppc_md.hpte_insert */
-	ld	r6,STK_PARM(r4)(r1)	/* Retreive new pp bits */
-	mr	r4,r29			/* Retreive va */
+	ld	r6,STK_PARM(r4)(r1)	/* Retrieve new pp bits */
+	mr	r4,r29			/* Retrieve va */
 	li	r7,0			/* !bolted, !secondary */
 	li	r8,MMU_PAGE_4K		/* page size */
 	ld	r9,STK_PARM(r9)(r1)	/* segment size */
@@ -522,8 +522,8 @@ _GLOBAL(htab_call_hpte_insert1)
 	rldicr	r3,r0,3,63-3		/* r0 = (~hash & mask) << 3 */
 
 	/* Call ppc_md.hpte_insert */
-	ld	r6,STK_PARM(r4)(r1)	/* Retreive new pp bits */
-	mr	r4,r29			/* Retreive va */
+	ld	r6,STK_PARM(r4)(r1)	/* Retrieve new pp bits */
+	mr	r4,r29			/* Retrieve va */
 	li	r7,HPTE_V_SECONDARY	/* !bolted, secondary */
 	li	r8,MMU_PAGE_4K		/* page size */
 	ld	r9,STK_PARM(r9)(r1)	/* segment size */
@@ -813,8 +813,8 @@ ht64_insert_pte:
 	rldicr	r3,r0,3,63-3	/* r0 = (hash & mask) << 3 */
 
 	/* Call ppc_md.hpte_insert */
-	ld	r6,STK_PARM(r4)(r1)	/* Retreive new pp bits */
-	mr	r4,r29			/* Retreive va */
+	ld	r6,STK_PARM(r4)(r1)	/* Retrieve new pp bits */
+	mr	r4,r29			/* Retrieve va */
 	li	r7,0			/* !bolted, !secondary */
 	li	r8,MMU_PAGE_64K
 	ld	r9,STK_PARM(r9)(r1)	/* segment size */
@@ -836,8 +836,8 @@ _GLOBAL(ht64_call_hpte_insert1)
 	rldicr	r3,r0,3,63-3	/* r0 = (~hash & mask) << 3 */
 
 	/* Call ppc_md.hpte_insert */
-	ld	r6,STK_PARM(r4)(r1)	/* Retreive new pp bits */
-	mr	r4,r29			/* Retreive va */
+	ld	r6,STK_PARM(r4)(r1)	/* Retrieve new pp bits */
+	mr	r4,r29			/* Retrieve va */
 	li	r7,HPTE_V_SECONDARY	/* !bolted, secondary */
 	li	r8,MMU_PAGE_64K
 	ld	r9,STK_PARM(r9)(r1)	/* segment size */
diff --git a/arch/powerpc/mm/hash_utils_64.c b/arch/powerpc/mm/hash_utils_64.c
index a5991facddce..58a022d0f463 100644
--- a/arch/powerpc/mm/hash_utils_64.c
+++ b/arch/powerpc/mm/hash_utils_64.c
@@ -753,7 +753,7 @@ void __cpuinit early_init_mmu_secondary(void)
 		mtspr(SPRN_SDR1, _SDR1);
 
 	/* Initialize STAB/SLB. We use a virtual address as it works
-	 * in real mode on pSeries and we want a virutal address on
+	 * in real mode on pSeries and we want a virtual address on
 	 * iSeries anyway
 	 */
 	if (cpu_has_feature(CPU_FTR_SLB))
diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c
index a66499650909..57e545b84bf1 100644
--- a/arch/powerpc/mm/mem.c
+++ b/arch/powerpc/mm/mem.c
@@ -424,7 +424,7 @@ void clear_user_page(void *page, unsigned long vaddr, struct page *pg)
 	clear_page(page);
 
 	/*
-	 * We shouldnt have to do this, but some versions of glibc
+	 * We shouldn't have to do this, but some versions of glibc
 	 * require it (ld.so assumes zero filled pages are icache clean)
 	 * - Anton
 	 */
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index 0dc95c0aa3be..5ec1dad2a19d 100644
--- a/arch/powerpc/mm/numa.c
+++ b/arch/powerpc/mm/numa.c
@@ -440,11 +440,11 @@ static void read_drconf_cell(struct of_drconf_cell *drmem, const u32 **cellp)
 }
 
 /*
- * Retreive and validate the ibm,dynamic-memory property of the device tree.
+ * Retrieve and validate the ibm,dynamic-memory property of the device tree.
  *
  * The layout of the ibm,dynamic-memory property is a number N of memblock
  * list entries followed by N memblock list entries.  Each memblock list entry
- * contains information as layed out in the of_drconf_cell struct above.
+ * contains information as laid out in the of_drconf_cell struct above.
  */
 static int of_get_drconf_memory(struct device_node *memory, const u32 **dm)
 {
@@ -468,7 +468,7 @@ static int of_get_drconf_memory(struct device_node *memory, const u32 **dm)
 }
 
 /*
- * Retreive and validate the ibm,lmb-size property for drconf memory
+ * Retrieve and validate the ibm,lmb-size property for drconf memory
  * from the device tree.
  */
 static u64 of_get_lmb_size(struct device_node *memory)
@@ -490,7 +490,7 @@ struct assoc_arrays {
 };
 
 /*
- * Retreive and validate the list of associativity arrays for drconf
+ * Retrieve and validate the list of associativity arrays for drconf
  * memory from the ibm,associativity-lookup-arrays property of the
  * device tree..
  *
@@ -604,7 +604,7 @@ static int __cpuinit cpu_numa_callback(struct notifier_block *nfb,
  * Returns the size the region should have to enforce the memory limit.
  * This will either be the original value of size, a truncated value,
  * or zero. If the returned value of size is 0 the region should be
- * discarded as it lies wholy above the memory limit.
+ * discarded as it lies wholly above the memory limit.
  */
 static unsigned long __init numa_enforce_memory_limit(unsigned long start,
 						      unsigned long size)
diff --git a/arch/powerpc/mm/tlb_low_64e.S b/arch/powerpc/mm/tlb_low_64e.S
index 8526bd9d2aa3..af0892209417 100644
--- a/arch/powerpc/mm/tlb_low_64e.S
+++ b/arch/powerpc/mm/tlb_low_64e.S
@@ -192,7 +192,7 @@ normal_tlb_miss:
 	or	r10,r15,r14
 
 BEGIN_MMU_FTR_SECTION
-	/* Set the TLB reservation and seach for existing entry. Then load
+	/* Set the TLB reservation and search for existing entry. Then load
 	 * the entry.
 	 */
 	PPC_TLBSRX_DOT(0,r16)
@@ -425,13 +425,13 @@ END_MMU_FTR_SECTION_IFSET(MMU_FTR_USE_TLBRSRV)
 
 virt_page_table_tlb_miss_fault:
 	/* If we fault here, things are a little bit tricky. We need to call
-	 * either data or instruction store fault, and we need to retreive
+	 * either data or instruction store fault, and we need to retrieve
 	 * the original fault address and ESR (for data).
 	 *
 	 * The thing is, we know that in normal circumstances, this is
 	 * always called as a second level tlb miss for SW load or as a first
 	 * level TLB miss for HW load, so we should be able to peek at the
-	 * relevant informations in the first exception frame in the PACA.
+	 * relevant information in the first exception frame in the PACA.
 	 *
 	 * However, we do need to double check that, because we may just hit
 	 * a stray kernel pointer or a userland attack trying to hit those
diff --git a/arch/powerpc/oprofile/op_model_cell.c b/arch/powerpc/oprofile/op_model_cell.c
index c4d2b7167568..cb515cff745c 100644
--- a/arch/powerpc/oprofile/op_model_cell.c
+++ b/arch/powerpc/oprofile/op_model_cell.c
@@ -67,7 +67,7 @@
 
 #define MAX_SPU_COUNT 0xFFFFFF	/* maximum 24 bit LFSR value */
 
-/* Minumum HW interval timer setting to send value to trace buffer is 10 cycle.
+/* Minimum HW interval timer setting to send value to trace buffer is 10 cycle.
  * To configure counter to send value every N cycles set counter to
  * 2^32 - 1 - N.
  */
@@ -1470,7 +1470,7 @@ static int cell_global_start(struct op_counter_config *ctr)
  * trace buffer at the maximum rate possible.  The trace buffer is configured
  * to store the PCs, wrapping when it is full.  The performance counter is
  * initialized to the max hardware count minus the number of events, N, between
- * samples.  Once the N events have occured, a HW counter overflow occurs
+ * samples.  Once the N events have occurred, a HW counter overflow occurs
  * causing the generation of a HW counter interrupt which also stops the
  * writing of the SPU PC values to the trace buffer.  Hence the last PC
  * written to the trace buffer is the SPU PC that we want.  Unfortunately,
@@ -1656,7 +1656,7 @@ static void cell_handle_interrupt_ppu(struct pt_regs *regs,
 		 * The counters were frozen by the interrupt.
 		 * Reenable the interrupt and restart the counters.
 		 * If there was a race between the interrupt handler and
-		 * the virtual counter routine.	 The virutal counter
+		 * the virtual counter routine.	 The virtual counter
 		 * routine may have cleared the interrupts.  Hence must
 		 * use the virt_cntr_inter_mask to re-enable the interrupts.
 		 */
diff --git a/arch/powerpc/oprofile/op_model_power4.c b/arch/powerpc/oprofile/op_model_power4.c
index 80774092db77..8ee51a252cf1 100644
--- a/arch/powerpc/oprofile/op_model_power4.c
+++ b/arch/powerpc/oprofile/op_model_power4.c
@@ -207,7 +207,7 @@ static unsigned long get_pc(struct pt_regs *regs)
 	unsigned long mmcra;
 	unsigned long slot;
 
-	/* Cant do much about it */
+	/* Can't do much about it */
 	if (!cur_cpu_spec->oprofile_mmcra_sihv)
 		return pc;
 
diff --git a/arch/powerpc/platforms/512x/mpc5121_ads_cpld.c b/arch/powerpc/platforms/512x/mpc5121_ads_cpld.c
index fde0ea50c97d..cfc4b2009982 100644
--- a/arch/powerpc/platforms/512x/mpc5121_ads_cpld.c
+++ b/arch/powerpc/platforms/512x/mpc5121_ads_cpld.c
@@ -132,8 +132,8 @@ static int
 cpld_pic_host_map(struct irq_host *h, unsigned int virq,
 			     irq_hw_number_t hw)
 {
-	irq_to_desc(virq)->status |= IRQ_LEVEL;
-	set_irq_chip_and_handler(virq, &cpld_pic, handle_level_irq);
+	irq_set_status_flags(virq, IRQ_LEVEL);
+	irq_set_chip_and_handler(virq, &cpld_pic, handle_level_irq);
 	return 0;
 }
 
@@ -198,7 +198,7 @@ mpc5121_ads_cpld_pic_init(void)
 		goto end;
 	}
 
-	set_irq_chained_handler(cascade_irq, cpld_pic_cascade);
+	irq_set_chained_handler(cascade_irq, cpld_pic_cascade);
 end:
 	of_node_put(np);
 }
diff --git a/arch/powerpc/platforms/52xx/media5200.c b/arch/powerpc/platforms/52xx/media5200.c
index 2bd1e6cf1f58..57a6a349e932 100644
--- a/arch/powerpc/platforms/52xx/media5200.c
+++ b/arch/powerpc/platforms/52xx/media5200.c
@@ -82,7 +82,7 @@ static struct irq_chip media5200_irq_chip = {
 
 void media5200_irq_cascade(unsigned int virq, struct irq_desc *desc)
 {
-	struct irq_chip *chip = get_irq_desc_chip(desc);
+	struct irq_chip *chip = irq_desc_get_chip(desc);
 	int sub_virq, val;
 	u32 status, enable;
 
@@ -107,7 +107,7 @@ void media5200_irq_cascade(unsigned int virq, struct irq_desc *desc)
 	/* Processing done; can reenable the cascade now */
 	raw_spin_lock(&desc->lock);
 	chip->irq_ack(&desc->irq_data);
-	if (!(desc->status & IRQ_DISABLED))
+	if (!irqd_irq_disabled(&desc->irq_data))
 		chip->irq_unmask(&desc->irq_data);
 	raw_spin_unlock(&desc->lock);
 }
@@ -115,15 +115,10 @@ void media5200_irq_cascade(unsigned int virq, struct irq_desc *desc)
 static int media5200_irq_map(struct irq_host *h, unsigned int virq,
 			     irq_hw_number_t hw)
 {
-	struct irq_desc *desc = irq_to_desc(virq);
-
 	pr_debug("%s: h=%p, virq=%i, hwirq=%i\n", __func__, h, virq, (int)hw);
-	set_irq_chip_data(virq, &media5200_irq);
-	set_irq_chip_and_handler(virq, &media5200_irq_chip, handle_level_irq);
-	set_irq_type(virq, IRQ_TYPE_LEVEL_LOW);
-	desc->status &= ~(IRQ_TYPE_SENSE_MASK | IRQ_LEVEL);
-	desc->status |= IRQ_TYPE_LEVEL_LOW | IRQ_LEVEL;
-
+	irq_set_chip_data(virq, &media5200_irq);
+	irq_set_chip_and_handler(virq, &media5200_irq_chip, handle_level_irq);
+	irq_set_status_flags(virq, IRQ_LEVEL);
 	return 0;
 }
 
@@ -187,8 +182,8 @@ static void __init media5200_init_irq(void)
 
 	media5200_irq.irqhost->host_data = &media5200_irq;
 
-	set_irq_data(cascade_virq, &media5200_irq);
-	set_irq_chained_handler(cascade_virq, media5200_irq_cascade);
+	irq_set_handler_data(cascade_virq, &media5200_irq);
+	irq_set_chained_handler(cascade_virq, media5200_irq_cascade);
 
 	return;
 
diff --git a/arch/powerpc/platforms/52xx/mpc52xx_gpt.c b/arch/powerpc/platforms/52xx/mpc52xx_gpt.c
index 6da44f0f2934..6c39b9cc2fa3 100644
--- a/arch/powerpc/platforms/52xx/mpc52xx_gpt.c
+++ b/arch/powerpc/platforms/52xx/mpc52xx_gpt.c
@@ -192,7 +192,7 @@ static struct irq_chip mpc52xx_gpt_irq_chip = {
 
 void mpc52xx_gpt_irq_cascade(unsigned int virq, struct irq_desc *desc)
 {
-	struct mpc52xx_gpt_priv *gpt = get_irq_data(virq);
+	struct mpc52xx_gpt_priv *gpt = irq_get_handler_data(virq);
 	int sub_virq;
 	u32 status;
 
@@ -209,8 +209,8 @@ static int mpc52xx_gpt_irq_map(struct irq_host *h, unsigned int virq,
 	struct mpc52xx_gpt_priv *gpt = h->host_data;
 
 	dev_dbg(gpt->dev, "%s: h=%p, virq=%i\n", __func__, h, virq);
-	set_irq_chip_data(virq, gpt);
-	set_irq_chip_and_handler(virq, &mpc52xx_gpt_irq_chip, handle_edge_irq);
+	irq_set_chip_data(virq, gpt);
+	irq_set_chip_and_handler(virq, &mpc52xx_gpt_irq_chip, handle_edge_irq);
 
 	return 0;
 }
@@ -259,8 +259,8 @@ mpc52xx_gpt_irq_setup(struct mpc52xx_gpt_priv *gpt, struct device_node *node)
 	}
 
 	gpt->irqhost->host_data = gpt;
-	set_irq_data(cascade_virq, gpt);
-	set_irq_chained_handler(cascade_virq, mpc52xx_gpt_irq_cascade);
+	irq_set_handler_data(cascade_virq, gpt);
+	irq_set_chained_handler(cascade_virq, mpc52xx_gpt_irq_cascade);
 
 	/* If the GPT is currently disabled, then change it to be in Input
 	 * Capture mode.  If the mode is non-zero, then the pin could be
diff --git a/arch/powerpc/platforms/52xx/mpc52xx_lpbfifo.c b/arch/powerpc/platforms/52xx/mpc52xx_lpbfifo.c
index 6385d883cb8d..9940ce8a2d4e 100644
--- a/arch/powerpc/platforms/52xx/mpc52xx_lpbfifo.c
+++ b/arch/powerpc/platforms/52xx/mpc52xx_lpbfifo.c
@@ -57,7 +57,7 @@ struct mpc52xx_lpbfifo {
 static struct mpc52xx_lpbfifo lpbfifo;
 
 /**
- * mpc52xx_lpbfifo_kick - Trigger the next block of data to be transfered
+ * mpc52xx_lpbfifo_kick - Trigger the next block of data to be transferred
  */
 static void mpc52xx_lpbfifo_kick(struct mpc52xx_lpbfifo_request *req)
 {
@@ -179,7 +179,7 @@ static void mpc52xx_lpbfifo_kick(struct mpc52xx_lpbfifo_request *req)
  *
  * On transmit, the dma completion irq triggers before the fifo completion
  * triggers.  Handle the dma completion here instead of the LPB FIFO Bestcomm
- * task completion irq becuase everyting is not really done until the LPB FIFO
+ * task completion irq because everything is not really done until the LPB FIFO
  * completion irq triggers.
  *
  * In other words:
@@ -195,7 +195,7 @@ static void mpc52xx_lpbfifo_kick(struct mpc52xx_lpbfifo_request *req)
  * Exit conditions:
  * 1) Transfer aborted
  * 2) FIFO complete without DMA; more data to do
- * 3) FIFO complete without DMA; all data transfered
+ * 3) FIFO complete without DMA; all data transferred
  * 4) FIFO complete using DMA
  *
  * Condition 1 can occur regardless of whether or not DMA is used.
diff --git a/arch/powerpc/platforms/52xx/mpc52xx_pic.c b/arch/powerpc/platforms/52xx/mpc52xx_pic.c
index 9f3ed582d082..1dd15400f6f0 100644
--- a/arch/powerpc/platforms/52xx/mpc52xx_pic.c
+++ b/arch/powerpc/platforms/52xx/mpc52xx_pic.c
@@ -214,7 +214,7 @@ static int mpc52xx_extirq_set_type(struct irq_data *d, unsigned int flow_type)
 	ctrl_reg |= (type << (22 - (l2irq * 2)));
 	out_be32(&intr->ctrl, ctrl_reg);
 
-	__set_irq_handler_unlocked(d->irq, handler);
+	__irq_set_handler_locked(d->irq, handler);
 
 	return 0;
 }
@@ -414,7 +414,7 @@ static int mpc52xx_irqhost_map(struct irq_host *h, unsigned int virq,
 		else
 			hndlr = handle_level_irq;
 
-		set_irq_chip_and_handler(virq, &mpc52xx_extirq_irqchip, hndlr);
+		irq_set_chip_and_handler(virq, &mpc52xx_extirq_irqchip, hndlr);
 		pr_debug("%s: External IRQ%i virq=%x, hw=%x. type=%x\n",
 			 __func__, l2irq, virq, (int)irq, type);
 		return 0;
@@ -431,7 +431,7 @@ static int mpc52xx_irqhost_map(struct irq_host *h, unsigned int virq,
 		return -EINVAL;
 	}
 
-	set_irq_chip_and_handler(virq, irqchip, handle_level_irq);
+	irq_set_chip_and_handler(virq, irqchip, handle_level_irq);
 	pr_debug("%s: virq=%x, l1=%i, l2=%i\n", __func__, virq, l1irq, l2irq);
 
 	return 0;
@@ -512,7 +512,7 @@ void __init mpc52xx_init_irq(void)
 /**
  * mpc52xx_get_irq - Get pending interrupt number hook function
  *
- * Called by the interupt handler to determine what IRQ handler needs to be
+ * Called by the interrupt handler to determine what IRQ handler needs to be
  * executed.
  *
  * Status of pending interrupts is determined by reading the encoded status
diff --git a/arch/powerpc/platforms/82xx/pq2ads-pci-pic.c b/arch/powerpc/platforms/82xx/pq2ads-pci-pic.c
index 926dfdaaf57a..4a4eb6ffa12f 100644
--- a/arch/powerpc/platforms/82xx/pq2ads-pci-pic.c
+++ b/arch/powerpc/platforms/82xx/pq2ads-pci-pic.c
@@ -81,7 +81,7 @@ static struct irq_chip pq2ads_pci_ic = {
 
 static void pq2ads_pci_irq_demux(unsigned int irq, struct irq_desc *desc)
 {
-	struct pq2ads_pci_pic *priv = get_irq_desc_data(desc);
+	struct pq2ads_pci_pic *priv = irq_desc_get_handler_data(desc);
 	u32 stat, mask, pend;
 	int bit;
 
@@ -106,17 +106,17 @@ static void pq2ads_pci_irq_demux(unsigned int irq, struct irq_desc *desc)
 static int pci_pic_host_map(struct irq_host *h, unsigned int virq,
 			    irq_hw_number_t hw)
 {
-	irq_to_desc(virq)->status |= IRQ_LEVEL;
-	set_irq_chip_data(virq, h->host_data);
-	set_irq_chip_and_handler(virq, &pq2ads_pci_ic, handle_level_irq);
+	irq_set_status_flags(virq, IRQ_LEVEL);
+	irq_set_chip_data(virq, h->host_data);
+	irq_set_chip_and_handler(virq, &pq2ads_pci_ic, handle_level_irq);
 	return 0;
 }
 
 static void pci_host_unmap(struct irq_host *h, unsigned int virq)
 {
 	/* remove chip and handler */
-	set_irq_chip_data(virq, NULL);
-	set_irq_chip(virq, NULL);
+	irq_set_chip_data(virq, NULL);
+	irq_set_chip(virq, NULL);
 }
 
 static struct irq_host_ops pci_pic_host_ops = {
@@ -175,8 +175,8 @@ int __init pq2ads_pci_init_irq(void)
 
 	priv->host = host;
 	host->host_data = priv;
-	set_irq_data(irq, priv);
-	set_irq_chained_handler(irq, pq2ads_pci_irq_demux);
+	irq_set_handler_data(irq, priv);
+	irq_set_chained_handler(irq, pq2ads_pci_irq_demux);
 
 	of_node_put(np);
 	return 0;
diff --git a/arch/powerpc/platforms/85xx/ksi8560.c b/arch/powerpc/platforms/85xx/ksi8560.c
index 64447e48f3d5..c46f9359be15 100644
--- a/arch/powerpc/platforms/85xx/ksi8560.c
+++ b/arch/powerpc/platforms/85xx/ksi8560.c
@@ -56,7 +56,7 @@ static void machine_restart(char *cmd)
 
 static void cpm2_cascade(unsigned int irq, struct irq_desc *desc)
 {
-	struct irq_chip *chip = get_irq_desc_chip(desc);
+	struct irq_chip *chip = irq_desc_get_chip(desc);
 	int cascade_irq;
 
 	while ((cascade_irq = cpm2_get_irq()) >= 0)
@@ -106,7 +106,7 @@ static void __init ksi8560_pic_init(void)
 
 	cpm2_pic_init(np);
 	of_node_put(np);
-	set_irq_chained_handler(irq, cpm2_cascade);
+	irq_set_chained_handler(irq, cpm2_cascade);
 #endif
 }
 
diff --git a/arch/powerpc/platforms/85xx/mpc85xx_ads.c b/arch/powerpc/platforms/85xx/mpc85xx_ads.c
index 1352d1107bfd..3b2c9bb66199 100644
--- a/arch/powerpc/platforms/85xx/mpc85xx_ads.c
+++ b/arch/powerpc/platforms/85xx/mpc85xx_ads.c
@@ -50,7 +50,7 @@ static int mpc85xx_exclude_device(struct pci_controller *hose,
 
 static void cpm2_cascade(unsigned int irq, struct irq_desc *desc)
 {
-	struct irq_chip *chip = get_irq_desc_chip(desc);
+	struct irq_chip *chip = irq_desc_get_chip(desc);
 	int cascade_irq;
 
 	while ((cascade_irq = cpm2_get_irq()) >= 0)
@@ -101,7 +101,7 @@ static void __init mpc85xx_ads_pic_init(void)
 
 	cpm2_pic_init(np);
 	of_node_put(np);
-	set_irq_chained_handler(irq, cpm2_cascade);
+	irq_set_chained_handler(irq, cpm2_cascade);
 #endif
 }
 
diff --git a/arch/powerpc/platforms/85xx/mpc85xx_cds.c b/arch/powerpc/platforms/85xx/mpc85xx_cds.c
index 458d91fba91d..6299a2a51ae8 100644
--- a/arch/powerpc/platforms/85xx/mpc85xx_cds.c
+++ b/arch/powerpc/platforms/85xx/mpc85xx_cds.c
@@ -255,7 +255,7 @@ static int mpc85xx_cds_8259_attach(void)
 	}
 
 	/* Success. Connect our low-level cascade handler. */
-	set_irq_handler(cascade_irq, mpc85xx_8259_cascade_handler);
+	irq_set_handler(cascade_irq, mpc85xx_8259_cascade_handler);
 
 	return 0;
 }
diff --git a/arch/powerpc/platforms/85xx/mpc85xx_ds.c b/arch/powerpc/platforms/85xx/mpc85xx_ds.c
index 793ead7993ab..c7b97f70312e 100644
--- a/arch/powerpc/platforms/85xx/mpc85xx_ds.c
+++ b/arch/powerpc/platforms/85xx/mpc85xx_ds.c
@@ -47,7 +47,7 @@
 #ifdef CONFIG_PPC_I8259
 static void mpc85xx_8259_cascade(unsigned int irq, struct irq_desc *desc)
 {
-	struct irq_chip *chip = get_irq_desc_chip(desc);
+	struct irq_chip *chip = irq_desc_get_chip(desc);
 	unsigned int cascade_irq = i8259_irq();
 
 	if (cascade_irq != NO_IRQ) {
@@ -122,7 +122,7 @@ void __init mpc85xx_ds_pic_init(void)
 	i8259_init(cascade_node, 0);
 	of_node_put(cascade_node);
 
-	set_irq_chained_handler(cascade_irq, mpc85xx_8259_cascade);
+	irq_set_chained_handler(cascade_irq, mpc85xx_8259_cascade);
 #endif	/* CONFIG_PPC_I8259 */
 }
 
diff --git a/arch/powerpc/platforms/85xx/sbc8560.c b/arch/powerpc/platforms/85xx/sbc8560.c
index d7e28ec3e072..d2dfd465fbf6 100644
--- a/arch/powerpc/platforms/85xx/sbc8560.c
+++ b/arch/powerpc/platforms/85xx/sbc8560.c
@@ -41,7 +41,7 @@
 
 static void cpm2_cascade(unsigned int irq, struct irq_desc *desc)
 {
-	struct irq_chip *chip = get_irq_desc_chip(desc);
+	struct irq_chip *chip = irq_desc_get_chip(desc);
 	int cascade_irq;
 
 	while ((cascade_irq = cpm2_get_irq()) >= 0)
@@ -92,7 +92,7 @@ static void __init sbc8560_pic_init(void)
 
 	cpm2_pic_init(np);
 	of_node_put(np);
-	set_irq_chained_handler(irq, cpm2_cascade);
+	irq_set_chained_handler(irq, cpm2_cascade);
 #endif
 }
 
diff --git a/arch/powerpc/platforms/85xx/socrates_fpga_pic.c b/arch/powerpc/platforms/85xx/socrates_fpga_pic.c
index 79d85aca4767..db864623b4ae 100644
--- a/arch/powerpc/platforms/85xx/socrates_fpga_pic.c
+++ b/arch/powerpc/platforms/85xx/socrates_fpga_pic.c
@@ -93,7 +93,7 @@ static inline unsigned int socrates_fpga_pic_get_irq(unsigned int irq)
 
 void socrates_fpga_pic_cascade(unsigned int irq, struct irq_desc *desc)
 {
-	struct irq_chip *chip = get_irq_desc_chip(desc);
+	struct irq_chip *chip = irq_desc_get_chip(desc);
 	unsigned int cascade_irq;
 
 	/*
@@ -245,9 +245,9 @@ static int socrates_fpga_pic_host_map(struct irq_host *h, unsigned int virq,
 		irq_hw_number_t hwirq)
 {
 	/* All interrupts are LEVEL sensitive */
-	irq_to_desc(virq)->status |= IRQ_LEVEL;
-	set_irq_chip_and_handler(virq, &socrates_fpga_pic_chip,
-			handle_fasteoi_irq);
+	irq_set_status_flags(virq, IRQ_LEVEL);
+	irq_set_chip_and_handler(virq, &socrates_fpga_pic_chip,
+				 handle_fasteoi_irq);
 
 	return 0;
 }
@@ -308,8 +308,8 @@ void socrates_fpga_pic_init(struct device_node *pic)
 			pr_warning("FPGA PIC: can't get irq%d.\n", i);
 			continue;
 		}
-		set_irq_chained_handler(socrates_fpga_irqs[i],
-				socrates_fpga_pic_cascade);
+		irq_set_chained_handler(socrates_fpga_irqs[i],
+					socrates_fpga_pic_cascade);
 	}
 
 	socrates_fpga_pic_iobase = of_iomap(pic, 0);
diff --git a/arch/powerpc/platforms/85xx/stx_gp3.c b/arch/powerpc/platforms/85xx/stx_gp3.c
index 2b62b064eac7..5387e9f06bdb 100644
--- a/arch/powerpc/platforms/85xx/stx_gp3.c
+++ b/arch/powerpc/platforms/85xx/stx_gp3.c
@@ -46,7 +46,7 @@
 
 static void cpm2_cascade(unsigned int irq, struct irq_desc *desc)
 {
-	struct irq_chip *chip = get_irq_desc_chip(desc);
+	struct irq_chip *chip = irq_desc_get_chip(desc);
 	int cascade_irq;
 
 	while ((cascade_irq = cpm2_get_irq()) >= 0)
@@ -102,7 +102,7 @@ static void __init stx_gp3_pic_init(void)
 
 	cpm2_pic_init(np);
 	of_node_put(np);
-	set_irq_chained_handler(irq, cpm2_cascade);
+	irq_set_chained_handler(irq, cpm2_cascade);
 #endif
 }
 
diff --git a/arch/powerpc/platforms/85xx/tqm85xx.c b/arch/powerpc/platforms/85xx/tqm85xx.c
index 2265b68e3279..325de772725a 100644
--- a/arch/powerpc/platforms/85xx/tqm85xx.c
+++ b/arch/powerpc/platforms/85xx/tqm85xx.c
@@ -44,7 +44,7 @@
 
 static void cpm2_cascade(unsigned int irq, struct irq_desc *desc)
 {
-	struct irq_chip *chip = get_irq_desc_chip(desc);
+	struct irq_chip *chip = irq_desc_get_chip(desc);
 	int cascade_irq;
 
 	while ((cascade_irq = cpm2_get_irq()) >= 0)
@@ -100,7 +100,7 @@ static void __init tqm85xx_pic_init(void)
 
 	cpm2_pic_init(np);
 	of_node_put(np);
-	set_irq_chained_handler(irq, cpm2_cascade);
+	irq_set_chained_handler(irq, cpm2_cascade);
 #endif
 }
 
diff --git a/arch/powerpc/platforms/86xx/gef_pic.c b/arch/powerpc/platforms/86xx/gef_pic.c
index 0adfe3b740cd..0beec7d5566b 100644
--- a/arch/powerpc/platforms/86xx/gef_pic.c
+++ b/arch/powerpc/platforms/86xx/gef_pic.c
@@ -95,7 +95,7 @@ static int gef_pic_cascade_irq;
 
 void gef_pic_cascade(unsigned int irq, struct irq_desc *desc)
 {
-	struct irq_chip *chip = get_irq_desc_chip(desc);
+	struct irq_chip *chip = irq_desc_get_chip(desc);
 	unsigned int cascade_irq;
 
 	/*
@@ -163,8 +163,8 @@ static int gef_pic_host_map(struct irq_host *h, unsigned int virq,
 			  irq_hw_number_t hwirq)
 {
 	/* All interrupts are LEVEL sensitive */
-	irq_to_desc(virq)->status |= IRQ_LEVEL;
-	set_irq_chip_and_handler(virq, &gef_pic_chip, handle_level_irq);
+	irq_set_status_flags(virq, IRQ_LEVEL);
+	irq_set_chip_and_handler(virq, &gef_pic_chip, handle_level_irq);
 
 	return 0;
 }
@@ -225,7 +225,7 @@ void __init gef_pic_init(struct device_node *np)
 		return;
 
 	/* Chain with parent controller */
-	set_irq_chained_handler(gef_pic_cascade_irq, gef_pic_cascade);
+	irq_set_chained_handler(gef_pic_cascade_irq, gef_pic_cascade);
 }
 
 /*
diff --git a/arch/powerpc/platforms/86xx/pic.c b/arch/powerpc/platforms/86xx/pic.c
index cbe33639b478..8ef8960abda6 100644
--- a/arch/powerpc/platforms/86xx/pic.c
+++ b/arch/powerpc/platforms/86xx/pic.c
@@ -19,7 +19,7 @@
 #ifdef CONFIG_PPC_I8259
 static void mpc86xx_8259_cascade(unsigned int irq, struct irq_desc *desc)
 {
-	struct irq_chip *chip = get_irq_desc_chip(desc);
+	struct irq_chip *chip = irq_desc_get_chip(desc);
 	unsigned int cascade_irq = i8259_irq();
 
 	if (cascade_irq != NO_IRQ)
@@ -77,6 +77,6 @@ void __init mpc86xx_init_irq(void)
 	i8259_init(cascade_node, 0);
 	of_node_put(cascade_node);
 
-	set_irq_chained_handler(cascade_irq, mpc86xx_8259_cascade);
+	irq_set_chained_handler(cascade_irq, mpc86xx_8259_cascade);
 #endif
 }
diff --git a/arch/powerpc/platforms/8xx/m8xx_setup.c b/arch/powerpc/platforms/8xx/m8xx_setup.c
index fabb108e8744..9ecce995dd4b 100644
--- a/arch/powerpc/platforms/8xx/m8xx_setup.c
+++ b/arch/powerpc/platforms/8xx/m8xx_setup.c
@@ -226,11 +226,11 @@ static void cpm_cascade(unsigned int irq, struct irq_desc *desc)
 
 		generic_handle_irq(cascade_irq);
 
-		chip = get_irq_desc_chip(cdesc);
+		chip = irq_desc_get_chip(cdesc);
 		chip->irq_eoi(&cdesc->irq_data);
 	}
 
-	chip = get_irq_desc_chip(desc);
+	chip = irq_desc_get_chip(desc);
 	chip->irq_eoi(&desc->irq_data);
 }
 
@@ -251,5 +251,5 @@ void __init mpc8xx_pics_init(void)
 
 	irq = cpm_pic_init();
 	if (irq != NO_IRQ)
-		set_irq_chained_handler(irq, cpm_cascade);
+		irq_set_chained_handler(irq, cpm_cascade);
 }
diff --git a/arch/powerpc/platforms/Kconfig b/arch/powerpc/platforms/Kconfig
index 20576829eca5..f7b07720aa30 100644
--- a/arch/powerpc/platforms/Kconfig
+++ b/arch/powerpc/platforms/Kconfig
@@ -46,7 +46,7 @@ config PPC_OF_BOOT_TRAMPOLINE
 	help
 	  Support from booting from Open Firmware or yaboot using an
 	  Open Firmware client interface. This enables the kernel to
-	  communicate with open firmware to retrieve system informations
+	  communicate with open firmware to retrieve system information
 	  such as the device tree.
 
 	  In case of doubt, say Y
diff --git a/arch/powerpc/platforms/cell/Kconfig b/arch/powerpc/platforms/cell/Kconfig
index 48cd7d2e1b75..81239ebed83f 100644
--- a/arch/powerpc/platforms/cell/Kconfig
+++ b/arch/powerpc/platforms/cell/Kconfig
@@ -9,6 +9,7 @@ config PPC_CELL_COMMON
 	select PPC_INDIRECT_IO
 	select PPC_NATIVE
 	select PPC_RTAS
+	select IRQ_EDGE_EOI_HANDLER
 
 config PPC_CELL_NATIVE
 	bool
diff --git a/arch/powerpc/platforms/cell/axon_msi.c b/arch/powerpc/platforms/cell/axon_msi.c
index c48b66a67e42..bb5ebf8fa80b 100644
--- a/arch/powerpc/platforms/cell/axon_msi.c
+++ b/arch/powerpc/platforms/cell/axon_msi.c
@@ -93,8 +93,8 @@ static void msic_dcr_write(struct axon_msic *msic, unsigned int dcr_n, u32 val)
 
 static void axon_msi_cascade(unsigned int irq, struct irq_desc *desc)
 {
-	struct irq_chip *chip = get_irq_desc_chip(desc);
-	struct axon_msic *msic = get_irq_data(irq);
+	struct irq_chip *chip = irq_desc_get_chip(desc);
+	struct axon_msic *msic = irq_get_handler_data(irq);
 	u32 write_offset, msi;
 	int idx;
 	int retry = 0;
@@ -287,7 +287,7 @@ static int axon_msi_setup_msi_irqs(struct pci_dev *dev, int nvec, int type)
 		}
 		dev_dbg(&dev->dev, "axon_msi: allocated virq 0x%x\n", virq);
 
-		set_irq_msi(virq, entry);
+		irq_set_msi_desc(virq, entry);
 		msg.data = virq;
 		write_msi_msg(virq, &msg);
 	}
@@ -305,7 +305,7 @@ static void axon_msi_teardown_msi_irqs(struct pci_dev *dev)
 		if (entry->irq == NO_IRQ)
 			continue;
 
-		set_irq_msi(entry->irq, NULL);
+		irq_set_msi_desc(entry->irq, NULL);
 		irq_dispose_mapping(entry->irq);
 	}
 }
@@ -320,7 +320,7 @@ static struct irq_chip msic_irq_chip = {
 static int msic_host_map(struct irq_host *h, unsigned int virq,
 			 irq_hw_number_t hw)
 {
-	set_irq_chip_and_handler(virq, &msic_irq_chip, handle_simple_irq);
+	irq_set_chip_and_handler(virq, &msic_irq_chip, handle_simple_irq);
 
 	return 0;
 }
@@ -400,8 +400,8 @@ static int axon_msi_probe(struct platform_device *device)
 
 	msic->irq_host->host_data = msic;
 
-	set_irq_data(virq, msic);
-	set_irq_chained_handler(virq, axon_msi_cascade);
+	irq_set_handler_data(virq, msic);
+	irq_set_chained_handler(virq, axon_msi_cascade);
 	pr_devel("axon_msi: irq 0x%x setup for axon_msi\n", virq);
 
 	/* Enable the MSIC hardware */
diff --git a/arch/powerpc/platforms/cell/beat_interrupt.c b/arch/powerpc/platforms/cell/beat_interrupt.c
index 0b8f7d7135c5..4cb9e147c307 100644
--- a/arch/powerpc/platforms/cell/beat_interrupt.c
+++ b/arch/powerpc/platforms/cell/beat_interrupt.c
@@ -136,15 +136,14 @@ static void beatic_pic_host_unmap(struct irq_host *h, unsigned int virq)
 static int beatic_pic_host_map(struct irq_host *h, unsigned int virq,
 			       irq_hw_number_t hw)
 {
-	struct irq_desc *desc = irq_to_desc(virq);
 	int64_t	err;
 
 	err = beat_construct_and_connect_irq_plug(virq, hw);
 	if (err < 0)
 		return -EIO;
 
-	desc->status |= IRQ_LEVEL;
-	set_irq_chip_and_handler(virq, &beatic_pic, handle_fasteoi_irq);
+	irq_set_status_flags(virq, IRQ_LEVEL);
+	irq_set_chip_and_handler(virq, &beatic_pic, handle_fasteoi_irq);
 	return 0;
 }
 
diff --git a/arch/powerpc/platforms/cell/interrupt.c b/arch/powerpc/platforms/cell/interrupt.c
index 624d26e72f1d..44cfd1bef89b 100644
--- a/arch/powerpc/platforms/cell/interrupt.c
+++ b/arch/powerpc/platforms/cell/interrupt.c
@@ -101,9 +101,9 @@ static void iic_ioexc_eoi(struct irq_data *d)
 
 static void iic_ioexc_cascade(unsigned int irq, struct irq_desc *desc)
 {
-	struct irq_chip *chip = get_irq_desc_chip(desc);
+	struct irq_chip *chip = irq_desc_get_chip(desc);
 	struct cbe_iic_regs __iomem *node_iic =
-		(void __iomem *)get_irq_desc_data(desc);
+		(void __iomem *)irq_desc_get_handler_data(desc);
 	unsigned int base = (irq & 0xffffff00) | IIC_IRQ_TYPE_IOEXC;
 	unsigned long bits, ack;
 	int cascade;
@@ -235,67 +235,19 @@ static int iic_host_match(struct irq_host *h, struct device_node *node)
 				    "IBM,CBEA-Internal-Interrupt-Controller");
 }
 
-extern int noirqdebug;
-
-static void handle_iic_irq(unsigned int irq, struct irq_desc *desc)
-{
-	struct irq_chip *chip = get_irq_desc_chip(desc);
-
-	raw_spin_lock(&desc->lock);
-
-	desc->status &= ~(IRQ_REPLAY | IRQ_WAITING);
-
-	/*
-	 * If we're currently running this IRQ, or its disabled,
-	 * we shouldn't process the IRQ. Mark it pending, handle
-	 * the necessary masking and go out
-	 */
-	if (unlikely((desc->status & (IRQ_INPROGRESS | IRQ_DISABLED)) ||
-		    !desc->action)) {
-		desc->status |= IRQ_PENDING;
-		goto out_eoi;
-	}
-
-	kstat_incr_irqs_this_cpu(irq, desc);
-
-	/* Mark the IRQ currently in progress.*/
-	desc->status |= IRQ_INPROGRESS;
-
-	do {
-		struct irqaction *action = desc->action;
-		irqreturn_t action_ret;
-
-		if (unlikely(!action))
-			goto out_eoi;
-
-		desc->status &= ~IRQ_PENDING;
-		raw_spin_unlock(&desc->lock);
-		action_ret = handle_IRQ_event(irq, action);
-		if (!noirqdebug)
-			note_interrupt(irq, desc, action_ret);
-		raw_spin_lock(&desc->lock);
-
-	} while ((desc->status & (IRQ_PENDING | IRQ_DISABLED)) == IRQ_PENDING);
-
-	desc->status &= ~IRQ_INPROGRESS;
-out_eoi:
-	chip->irq_eoi(&desc->irq_data);
-	raw_spin_unlock(&desc->lock);
-}
-
 static int iic_host_map(struct irq_host *h, unsigned int virq,
 			irq_hw_number_t hw)
 {
 	switch (hw & IIC_IRQ_TYPE_MASK) {
 	case IIC_IRQ_TYPE_IPI:
-		set_irq_chip_and_handler(virq, &iic_chip, handle_percpu_irq);
+		irq_set_chip_and_handler(virq, &iic_chip, handle_percpu_irq);
 		break;
 	case IIC_IRQ_TYPE_IOEXC:
-		set_irq_chip_and_handler(virq, &iic_ioexc_chip,
-					 handle_iic_irq);
+		irq_set_chip_and_handler(virq, &iic_ioexc_chip,
+					 handle_edge_eoi_irq);
 		break;
 	default:
-		set_irq_chip_and_handler(virq, &iic_chip, handle_iic_irq);
+		irq_set_chip_and_handler(virq, &iic_chip, handle_edge_eoi_irq);
 	}
 	return 0;
 }
@@ -412,8 +364,8 @@ static int __init setup_iic(void)
 		 * irq_data is a generic pointer that gets passed back
 		 * to us later, so the forced cast is fine.
 		 */
-		set_irq_data(cascade, (void __force *)node_iic);
-		set_irq_chained_handler(cascade , iic_ioexc_cascade);
+		irq_set_handler_data(cascade, (void __force *)node_iic);
+		irq_set_chained_handler(cascade, iic_ioexc_cascade);
 		out_be64(&node_iic->iic_ir,
 			 (1 << 12)		/* priority */ |
 			 (node << 4)		/* dest node */ |
diff --git a/arch/powerpc/platforms/cell/setup.c b/arch/powerpc/platforms/cell/setup.c
index 6a28d027d959..fd57bfe00edf 100644
--- a/arch/powerpc/platforms/cell/setup.c
+++ b/arch/powerpc/platforms/cell/setup.c
@@ -187,8 +187,8 @@ machine_subsys_initcall(cell, cell_publish_devices);
 
 static void cell_mpic_cascade(unsigned int irq, struct irq_desc *desc)
 {
-	struct irq_chip *chip = get_irq_desc_chip(desc);
-	struct mpic *mpic = get_irq_desc_data(desc);
+	struct irq_chip *chip = irq_desc_get_chip(desc);
+	struct mpic *mpic = irq_desc_get_handler_data(desc);
 	unsigned int virq;
 
 	virq = mpic_get_one_irq(mpic);
@@ -223,8 +223,8 @@ static void __init mpic_init_IRQ(void)
 
 		printk(KERN_INFO "%s : hooking up to IRQ %d\n",
 		       dn->full_name, virq);
-		set_irq_data(virq, mpic);
-		set_irq_chained_handler(virq, cell_mpic_cascade);
+		irq_set_handler_data(virq, mpic);
+		irq_set_chained_handler(virq, cell_mpic_cascade);
 	}
 }
 
diff --git a/arch/powerpc/platforms/cell/spider-pic.c b/arch/powerpc/platforms/cell/spider-pic.c
index b38cdfc1deb8..c5cf50e6b45a 100644
--- a/arch/powerpc/platforms/cell/spider-pic.c
+++ b/arch/powerpc/platforms/cell/spider-pic.c
@@ -102,7 +102,7 @@ static void spider_ack_irq(struct irq_data *d)
 
 	/* Reset edge detection logic if necessary
 	 */
-	if (irq_to_desc(d->irq)->status & IRQ_LEVEL)
+	if (irqd_is_level_type(d))
 		return;
 
 	/* Only interrupts 47 to 50 can be set to edge */
@@ -119,7 +119,6 @@ static int spider_set_irq_type(struct irq_data *d, unsigned int type)
 	struct spider_pic *pic = spider_virq_to_pic(d->irq);
 	unsigned int hw = irq_map[d->irq].hwirq;
 	void __iomem *cfg = spider_get_irq_config(pic, hw);
-	struct irq_desc *desc = irq_to_desc(d->irq);
 	u32 old_mask;
 	u32 ic;
 
@@ -147,12 +146,6 @@ static int spider_set_irq_type(struct irq_data *d, unsigned int type)
 		return -EINVAL;
 	}
 
-	/* Update irq_desc */
-	desc->status &= ~(IRQ_TYPE_SENSE_MASK | IRQ_LEVEL);
-	desc->status |= type & IRQ_TYPE_SENSE_MASK;
-	if (type & (IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_LEVEL_LOW))
-		desc->status |= IRQ_LEVEL;
-
 	/* Configure the source. One gross hack that was there before and
 	 * that I've kept around is the priority to the BE which I set to
 	 * be the same as the interrupt source number. I don't know wether
@@ -178,10 +171,10 @@ static struct irq_chip spider_pic = {
 static int spider_host_map(struct irq_host *h, unsigned int virq,
 			irq_hw_number_t hw)
 {
-	set_irq_chip_and_handler(virq, &spider_pic, handle_level_irq);
+	irq_set_chip_and_handler(virq, &spider_pic, handle_level_irq);
 
 	/* Set default irq type */
-	set_irq_type(virq, IRQ_TYPE_NONE);
+	irq_set_irq_type(virq, IRQ_TYPE_NONE);
 
 	return 0;
 }
@@ -207,8 +200,8 @@ static struct irq_host_ops spider_host_ops = {
 
 static void spider_irq_cascade(unsigned int irq, struct irq_desc *desc)
 {
-	struct irq_chip *chip = get_irq_desc_chip(desc);
-	struct spider_pic *pic = get_irq_desc_data(desc);
+	struct irq_chip *chip = irq_desc_get_chip(desc);
+	struct spider_pic *pic = irq_desc_get_handler_data(desc);
 	unsigned int cs, virq;
 
 	cs = in_be32(pic->regs + TIR_CS) >> 24;
@@ -328,8 +321,8 @@ static void __init spider_init_one(struct device_node *of_node, int chip,
 	virq = spider_find_cascade_and_node(pic);
 	if (virq == NO_IRQ)
 		return;
-	set_irq_data(virq, pic);
-	set_irq_chained_handler(virq, spider_irq_cascade);
+	irq_set_handler_data(virq, pic);
+	irq_set_chained_handler(virq, spider_irq_cascade);
 
 	printk(KERN_INFO "spider_pic: node %d, addr: 0x%lx %s\n",
 	       pic->node_id, addr, of_node->full_name);
diff --git a/arch/powerpc/platforms/cell/spufs/lscsa_alloc.c b/arch/powerpc/platforms/cell/spufs/lscsa_alloc.c
index 3b894f585280..147069938cfe 100644
--- a/arch/powerpc/platforms/cell/spufs/lscsa_alloc.c
+++ b/arch/powerpc/platforms/cell/spufs/lscsa_alloc.c
@@ -90,7 +90,7 @@ int spu_alloc_lscsa(struct spu_state *csa)
 	 */
 	for (i = 0; i < SPU_LSCSA_NUM_BIG_PAGES; i++) {
 		/* XXX This is likely to fail, we should use a special pool
-		 *     similiar to what hugetlbfs does.
+		 *     similar to what hugetlbfs does.
 		 */
 		csa->lscsa_pages[i] = alloc_pages(GFP_KERNEL,
 						  SPU_64K_PAGE_ORDER);
diff --git a/arch/powerpc/platforms/cell/spufs/sched.c b/arch/powerpc/platforms/cell/spufs/sched.c
index 0b0466284932..65203857b0ce 100644
--- a/arch/powerpc/platforms/cell/spufs/sched.c
+++ b/arch/powerpc/platforms/cell/spufs/sched.c
@@ -846,7 +846,7 @@ static struct spu_context *grab_runnable_context(int prio, int node)
 		struct list_head *rq = &spu_prio->runq[best];
 
 		list_for_each_entry(ctx, rq, rq) {
-			/* XXX(hch): check for affinity here aswell */
+			/* XXX(hch): check for affinity here as well */
 			if (__node_allowed(ctx, node)) {
 				__spu_del_from_rq(ctx);
 				goto found;
diff --git a/arch/powerpc/platforms/cell/spufs/spu_restore.c b/arch/powerpc/platforms/cell/spufs/spu_restore.c
index 21a9c952d88b..72c905f1ee7a 100644
--- a/arch/powerpc/platforms/cell/spufs/spu_restore.c
+++ b/arch/powerpc/platforms/cell/spufs/spu_restore.c
@@ -284,7 +284,7 @@ static inline void restore_complete(void)
 		exit_instrs[3] = BR_INSTR;
 		break;
 	default:
-		/* SPU_Status[R]=1. No additonal instructions. */
+		/* SPU_Status[R]=1. No additional instructions. */
 		break;
 	}
 	spu_sync();
diff --git a/arch/powerpc/platforms/chrp/setup.c b/arch/powerpc/platforms/chrp/setup.c
index 4c1288451a21..122786498419 100644
--- a/arch/powerpc/platforms/chrp/setup.c
+++ b/arch/powerpc/platforms/chrp/setup.c
@@ -365,7 +365,7 @@ void __init chrp_setup_arch(void)
 
 static void chrp_8259_cascade(unsigned int irq, struct irq_desc *desc)
 {
-	struct irq_chip *chip = get_irq_desc_chip(desc);
+	struct irq_chip *chip = irq_desc_get_chip(desc);
 	unsigned int cascade_irq = i8259_irq();
 
 	if (cascade_irq != NO_IRQ)
@@ -517,7 +517,7 @@ static void __init chrp_find_8259(void)
 		if (cascade_irq == NO_IRQ)
 			printk(KERN_ERR "i8259: failed to map cascade irq\n");
 		else
-			set_irq_chained_handler(cascade_irq,
+			irq_set_chained_handler(cascade_irq,
 						chrp_8259_cascade);
 	}
 }
diff --git a/arch/powerpc/platforms/embedded6xx/flipper-pic.c b/arch/powerpc/platforms/embedded6xx/flipper-pic.c
index 0aca0e28a8e5..12aa62b6f227 100644
--- a/arch/powerpc/platforms/embedded6xx/flipper-pic.c
+++ b/arch/powerpc/platforms/embedded6xx/flipper-pic.c
@@ -101,16 +101,16 @@ static struct irq_host *flipper_irq_host;
 static int flipper_pic_map(struct irq_host *h, unsigned int virq,
 			   irq_hw_number_t hwirq)
 {
-	set_irq_chip_data(virq, h->host_data);
-	irq_to_desc(virq)->status |= IRQ_LEVEL;
-	set_irq_chip_and_handler(virq, &flipper_pic, handle_level_irq);
+	irq_set_chip_data(virq, h->host_data);
+	irq_set_status_flags(virq, IRQ_LEVEL);
+	irq_set_chip_and_handler(virq, &flipper_pic, handle_level_irq);
 	return 0;
 }
 
 static void flipper_pic_unmap(struct irq_host *h, unsigned int irq)
 {
-	set_irq_chip_data(irq, NULL);
-	set_irq_chip(irq, NULL);
+	irq_set_chip_data(irq, NULL);
+	irq_set_chip(irq, NULL);
 }
 
 static int flipper_pic_match(struct irq_host *h, struct device_node *np)
diff --git a/arch/powerpc/platforms/embedded6xx/hlwd-pic.c b/arch/powerpc/platforms/embedded6xx/hlwd-pic.c
index 35e448bd8479..2bdddfc9d520 100644
--- a/arch/powerpc/platforms/embedded6xx/hlwd-pic.c
+++ b/arch/powerpc/platforms/embedded6xx/hlwd-pic.c
@@ -94,16 +94,16 @@ static struct irq_host *hlwd_irq_host;
 static int hlwd_pic_map(struct irq_host *h, unsigned int virq,
 			   irq_hw_number_t hwirq)
 {
-	set_irq_chip_data(virq, h->host_data);
-	irq_to_desc(virq)->status |= IRQ_LEVEL;
-	set_irq_chip_and_handler(virq, &hlwd_pic, handle_level_irq);
+	irq_set_chip_data(virq, h->host_data);
+	irq_set_status_flags(virq, IRQ_LEVEL);
+	irq_set_chip_and_handler(virq, &hlwd_pic, handle_level_irq);
 	return 0;
 }
 
 static void hlwd_pic_unmap(struct irq_host *h, unsigned int irq)
 {
-	set_irq_chip_data(irq, NULL);
-	set_irq_chip(irq, NULL);
+	irq_set_chip_data(irq, NULL);
+	irq_set_chip(irq, NULL);
 }
 
 static struct irq_host_ops hlwd_irq_host_ops = {
@@ -129,8 +129,8 @@ static unsigned int __hlwd_pic_get_irq(struct irq_host *h)
 static void hlwd_pic_irq_cascade(unsigned int cascade_virq,
 				      struct irq_desc *desc)
 {
-	struct irq_chip *chip = get_irq_desc_chip(desc);
-	struct irq_host *irq_host = get_irq_data(cascade_virq);
+	struct irq_chip *chip = irq_desc_get_chip(desc);
+	struct irq_host *irq_host = irq_get_handler_data(cascade_virq);
 	unsigned int virq;
 
 	raw_spin_lock(&desc->lock);
@@ -145,7 +145,7 @@ static void hlwd_pic_irq_cascade(unsigned int cascade_virq,
 
 	raw_spin_lock(&desc->lock);
 	chip->irq_ack(&desc->irq_data); /* IRQ_LEVEL */
-	if (!(desc->status & IRQ_DISABLED) && chip->irq_unmask)
+	if (!irqd_irq_disabled(&desc->irq_data) && chip->irq_unmask)
 		chip->irq_unmask(&desc->irq_data);
 	raw_spin_unlock(&desc->lock);
 }
@@ -218,8 +218,8 @@ void hlwd_pic_probe(void)
 			host = hlwd_pic_init(np);
 			BUG_ON(!host);
 			cascade_virq = irq_of_parse_and_map(np, 0);
-			set_irq_data(cascade_virq, host);
-			set_irq_chained_handler(cascade_virq,
+			irq_set_handler_data(cascade_virq, host);
+			irq_set_chained_handler(cascade_virq,
 						hlwd_pic_irq_cascade);
 			hlwd_irq_host = host;
 			break;
diff --git a/arch/powerpc/platforms/embedded6xx/holly.c b/arch/powerpc/platforms/embedded6xx/holly.c
index b21fde589ca7..487bda0d18d8 100644
--- a/arch/powerpc/platforms/embedded6xx/holly.c
+++ b/arch/powerpc/platforms/embedded6xx/holly.c
@@ -198,8 +198,8 @@ static void __init holly_init_IRQ(void)
 	cascade_pci_irq = irq_of_parse_and_map(tsi_pci, 0);
 	pr_debug("%s: tsi108 cascade_pci_irq = 0x%x\n", __func__, (u32) cascade_pci_irq);
 	tsi108_pci_int_init(cascade_node);
-	set_irq_data(cascade_pci_irq, mpic);
-	set_irq_chained_handler(cascade_pci_irq, tsi108_irq_cascade);
+	irq_set_handler_data(cascade_pci_irq, mpic);
+	irq_set_chained_handler(cascade_pci_irq, tsi108_irq_cascade);
 #endif
 	/* Configure MPIC outputs to CPU0 */
 	tsi108_write_reg(TSI108_MPIC_OFFSET + 0x30c, 0);
diff --git a/arch/powerpc/platforms/embedded6xx/mpc7448_hpc2.c b/arch/powerpc/platforms/embedded6xx/mpc7448_hpc2.c
index 7a2ba39d7811..1cb907c94359 100644
--- a/arch/powerpc/platforms/embedded6xx/mpc7448_hpc2.c
+++ b/arch/powerpc/platforms/embedded6xx/mpc7448_hpc2.c
@@ -153,8 +153,8 @@ static void __init mpc7448_hpc2_init_IRQ(void)
 	DBG("%s: tsi108 cascade_pci_irq = 0x%x\n", __func__,
 	    (u32) cascade_pci_irq);
 	tsi108_pci_int_init(cascade_node);
-	set_irq_data(cascade_pci_irq, mpic);
-	set_irq_chained_handler(cascade_pci_irq, tsi108_irq_cascade);
+	irq_set_handler_data(cascade_pci_irq, mpic);
+	irq_set_chained_handler(cascade_pci_irq, tsi108_irq_cascade);
 #endif
 	/* Configure MPIC outputs to CPU0 */
 	tsi108_write_reg(TSI108_MPIC_OFFSET + 0x30c, 0);
diff --git a/arch/powerpc/platforms/iseries/irq.c b/arch/powerpc/platforms/iseries/irq.c
index 4fb96f0b2df6..52a6889832c7 100644
--- a/arch/powerpc/platforms/iseries/irq.c
+++ b/arch/powerpc/platforms/iseries/irq.c
@@ -220,7 +220,7 @@ void __init iSeries_activate_IRQs()
 		if (!desc)
 			continue;
 
-		chip = get_irq_desc_chip(desc);
+		chip = irq_desc_get_chip(desc);
 		if (chip && chip->irq_startup) {
 			raw_spin_lock_irqsave(&desc->lock, flags);
 			chip->irq_startup(&desc->irq_data);
@@ -346,7 +346,7 @@ unsigned int iSeries_get_irq(void)
 static int iseries_irq_host_map(struct irq_host *h, unsigned int virq,
 				irq_hw_number_t hw)
 {
-	set_irq_chip_and_handler(virq, &iseries_pic, handle_fasteoi_irq);
+	irq_set_chip_and_handler(virq, &iseries_pic, handle_fasteoi_irq);
 
 	return 0;
 }
diff --git a/arch/powerpc/platforms/iseries/mf.c b/arch/powerpc/platforms/iseries/mf.c
index b5e026bdca21..62dabe3c2bfa 100644
--- a/arch/powerpc/platforms/iseries/mf.c
+++ b/arch/powerpc/platforms/iseries/mf.c
@@ -51,7 +51,7 @@
 static int mf_initialized;
 
 /*
- * This is the structure layout for the Machine Facilites LPAR event
+ * This is the structure layout for the Machine Facilities LPAR event
  * flows.
  */
 struct vsp_cmd_data {
diff --git a/arch/powerpc/platforms/iseries/viopath.c b/arch/powerpc/platforms/iseries/viopath.c
index b5f05d943a90..2376069cdc14 100644
--- a/arch/powerpc/platforms/iseries/viopath.c
+++ b/arch/powerpc/platforms/iseries/viopath.c
@@ -396,7 +396,7 @@ static void vio_handleEvent(struct HvLpEvent *event)
 			viopathStatus[remoteLp].mTargetInst)) {
 			printk(VIOPATH_KERN_WARN
 			       "message from invalid partition. "
-			       "int msg rcvd, source inst (%d) doesnt match (%d)\n",
+			       "int msg rcvd, source inst (%d) doesn't match (%d)\n",
 			       viopathStatus[remoteLp].mTargetInst,
 			       event->xSourceInstanceId);
 			return;
@@ -407,7 +407,7 @@ static void vio_handleEvent(struct HvLpEvent *event)
 			viopathStatus[remoteLp].mSourceInst)) {
 			printk(VIOPATH_KERN_WARN
 			       "message from invalid partition. "
-			       "int msg rcvd, target inst (%d) doesnt match (%d)\n",
+			       "int msg rcvd, target inst (%d) doesn't match (%d)\n",
 			       viopathStatus[remoteLp].mSourceInst,
 			       event->xTargetInstanceId);
 			return;
@@ -418,7 +418,7 @@ static void vio_handleEvent(struct HvLpEvent *event)
 		    viopathStatus[remoteLp].mSourceInst) {
 			printk(VIOPATH_KERN_WARN
 			       "message from invalid partition. "
-			       "ack msg rcvd, source inst (%d) doesnt match (%d)\n",
+			       "ack msg rcvd, source inst (%d) doesn't match (%d)\n",
 			       viopathStatus[remoteLp].mSourceInst,
 			       event->xSourceInstanceId);
 			return;
@@ -428,7 +428,7 @@ static void vio_handleEvent(struct HvLpEvent *event)
 		    viopathStatus[remoteLp].mTargetInst) {
 			printk(VIOPATH_KERN_WARN
 			       "message from invalid partition. "
-			       "viopath: ack msg rcvd, target inst (%d) doesnt match (%d)\n",
+			       "viopath: ack msg rcvd, target inst (%d) doesn't match (%d)\n",
 			       viopathStatus[remoteLp].mTargetInst,
 			       event->xTargetInstanceId);
 			return;
diff --git a/arch/powerpc/platforms/maple/pci.c b/arch/powerpc/platforms/maple/pci.c
index 04296ffff8bf..dd2e48b28508 100644
--- a/arch/powerpc/platforms/maple/pci.c
+++ b/arch/powerpc/platforms/maple/pci.c
@@ -498,7 +498,7 @@ void __devinit maple_pci_irq_fixup(struct pci_dev *dev)
 		printk(KERN_DEBUG "Fixup U4 PCIe IRQ\n");
 		dev->irq = irq_create_mapping(NULL, 1);
 		if (dev->irq != NO_IRQ)
-			set_irq_type(dev->irq, IRQ_TYPE_LEVEL_LOW);
+			irq_set_irq_type(dev->irq, IRQ_TYPE_LEVEL_LOW);
 	}
 
 	/* Hide AMD8111 IDE interrupt when in legacy mode so
diff --git a/arch/powerpc/platforms/pasemi/dma_lib.c b/arch/powerpc/platforms/pasemi/dma_lib.c
index 09695ae50f91..321a9b3a2d00 100644
--- a/arch/powerpc/platforms/pasemi/dma_lib.c
+++ b/arch/powerpc/platforms/pasemi/dma_lib.c
@@ -379,9 +379,9 @@ void pasemi_dma_free_buf(struct pasemi_dmachan *chan, int size,
 }
 EXPORT_SYMBOL(pasemi_dma_free_buf);
 
-/* pasemi_dma_alloc_flag - Allocate a flag (event) for channel syncronization
+/* pasemi_dma_alloc_flag - Allocate a flag (event) for channel synchronization
  *
- * Allocates a flag for use with channel syncronization (event descriptors).
+ * Allocates a flag for use with channel synchronization (event descriptors).
  * Returns allocated flag (0-63), < 0 on error.
  */
 int pasemi_dma_alloc_flag(void)
diff --git a/arch/powerpc/platforms/pasemi/setup.c b/arch/powerpc/platforms/pasemi/setup.c
index a6067b38d2ca..7c858e6f843c 100644
--- a/arch/powerpc/platforms/pasemi/setup.c
+++ b/arch/powerpc/platforms/pasemi/setup.c
@@ -239,7 +239,7 @@ static __init void pas_init_IRQ(void)
 	if (nmiprop) {
 		nmi_virq = irq_create_mapping(NULL, *nmiprop);
 		mpic_irq_set_priority(nmi_virq, 15);
-		set_irq_type(nmi_virq, IRQ_TYPE_EDGE_RISING);
+		irq_set_irq_type(nmi_virq, IRQ_TYPE_EDGE_RISING);
 		mpic_unmask_irq(irq_get_irq_data(nmi_virq));
 	}
 
diff --git a/arch/powerpc/platforms/powermac/Makefile b/arch/powerpc/platforms/powermac/Makefile
index 50f169392551..ea47df66fee5 100644
--- a/arch/powerpc/platforms/powermac/Makefile
+++ b/arch/powerpc/platforms/powermac/Makefile
@@ -11,7 +11,7 @@ obj-y				+= pic.o setup.o time.o feature.o pci.o \
 obj-$(CONFIG_PMAC_BACKLIGHT)	+= backlight.o
 obj-$(CONFIG_CPU_FREQ_PMAC)	+= cpufreq_32.o
 obj-$(CONFIG_CPU_FREQ_PMAC64)	+= cpufreq_64.o
-# CONFIG_NVRAM is an arch. independant tristate symbol, for pmac32 we really
+# CONFIG_NVRAM is an arch. independent tristate symbol, for pmac32 we really
 # need this to be a bool.  Cheat here and pretend CONFIG_NVRAM=m is really
 # CONFIG_NVRAM=y
 obj-$(CONFIG_NVRAM:m=y)		+= nvram.o
diff --git a/arch/powerpc/platforms/powermac/low_i2c.c b/arch/powerpc/platforms/powermac/low_i2c.c
index 480567e5fa9a..e9c8a607268e 100644
--- a/arch/powerpc/platforms/powermac/low_i2c.c
+++ b/arch/powerpc/platforms/powermac/low_i2c.c
@@ -904,7 +904,7 @@ static void __init smu_i2c_probe(void)
 	printk(KERN_INFO "SMU i2c %s\n", controller->full_name);
 
 	/* Look for childs, note that they might not be of the right
-	 * type as older device trees mix i2c busses and other thigns
+	 * type as older device trees mix i2c busses and other things
 	 * at the same level
 	 */
 	for (busnode = NULL;
diff --git a/arch/powerpc/platforms/powermac/pci.c b/arch/powerpc/platforms/powermac/pci.c
index 3bc075c788ef..f33e08d573ce 100644
--- a/arch/powerpc/platforms/powermac/pci.c
+++ b/arch/powerpc/platforms/powermac/pci.c
@@ -299,7 +299,7 @@ static void __init setup_chaos(struct pci_controller *hose,
  * This function deals with some "special cases" devices.
  *
  *  0 -> No special case
- *  1 -> Skip the device but act as if the access was successfull
+ *  1 -> Skip the device but act as if the access was successful
  *       (return 0xff's on reads, eventually, cache config space
  *       accesses in a later version)
  * -1 -> Hide the device (unsuccessful access)
@@ -988,7 +988,7 @@ void __devinit pmac_pci_irq_fixup(struct pci_dev *dev)
 	    dev->vendor == PCI_VENDOR_ID_DEC &&
 	    dev->device == PCI_DEVICE_ID_DEC_TULIP_PLUS) {
 		dev->irq = irq_create_mapping(NULL, 60);
-		set_irq_type(dev->irq, IRQ_TYPE_LEVEL_LOW);
+		irq_set_irq_type(dev->irq, IRQ_TYPE_LEVEL_LOW);
 	}
 #endif /* CONFIG_PPC32 */
 }
diff --git a/arch/powerpc/platforms/powermac/pic.c b/arch/powerpc/platforms/powermac/pic.c
index c55812bb6a51..023f24086a0a 100644
--- a/arch/powerpc/platforms/powermac/pic.c
+++ b/arch/powerpc/platforms/powermac/pic.c
@@ -157,7 +157,7 @@ static unsigned int pmac_startup_irq(struct irq_data *d)
         int i = src >> 5;
 
 	raw_spin_lock_irqsave(&pmac_pic_lock, flags);
-	if ((irq_to_desc(d->irq)->status & IRQ_LEVEL) == 0)
+	if (!irqd_is_level_type(d))
 		out_le32(&pmac_irq_hw[i]->ack, bit);
         __set_bit(src, ppc_cached_irq_mask);
         __pmac_set_irq_mask(src, 0);
@@ -289,7 +289,6 @@ static int pmac_pic_host_match(struct irq_host *h, struct device_node *node)
 static int pmac_pic_host_map(struct irq_host *h, unsigned int virq,
 			     irq_hw_number_t hw)
 {
-	struct irq_desc *desc = irq_to_desc(virq);
 	int level;
 
 	if (hw >= max_irqs)
@@ -300,9 +299,9 @@ static int pmac_pic_host_map(struct irq_host *h, unsigned int virq,
 	 */
 	level = !!(level_mask[hw >> 5] & (1UL << (hw & 0x1f)));
 	if (level)
-		desc->status |= IRQ_LEVEL;
-	set_irq_chip_and_handler(virq, &pmac_pic, level ?
-				 handle_level_irq : handle_edge_irq);
+		irq_set_status_flags(virq, IRQ_LEVEL);
+	irq_set_chip_and_handler(virq, &pmac_pic,
+				 level ? handle_level_irq : handle_edge_irq);
 	return 0;
 }
 
@@ -472,8 +471,8 @@ int of_irq_map_oldworld(struct device_node *device, int index,
 
 static void pmac_u3_cascade(unsigned int irq, struct irq_desc *desc)
 {
-	struct irq_chip *chip = get_irq_desc_chip(desc);
-	struct mpic *mpic = get_irq_desc_data(desc);
+	struct irq_chip *chip = irq_desc_get_chip(desc);
+	struct mpic *mpic = irq_desc_get_handler_data(desc);
 	unsigned int cascade_irq = mpic_get_one_irq(mpic);
 
 	if (cascade_irq != NO_IRQ)
@@ -591,8 +590,8 @@ static int __init pmac_pic_probe_mpic(void)
 		of_node_put(slave);
 		return 0;
 	}
-	set_irq_data(cascade, mpic2);
-	set_irq_chained_handler(cascade, pmac_u3_cascade);
+	irq_set_handler_data(cascade, mpic2);
+	irq_set_chained_handler(cascade, pmac_u3_cascade);
 
 	of_node_put(slave);
 	return 0;
diff --git a/arch/powerpc/platforms/powermac/pmac.h b/arch/powerpc/platforms/powermac/pmac.h
index f0bc08f6c1f0..20468f49aec0 100644
--- a/arch/powerpc/platforms/powermac/pmac.h
+++ b/arch/powerpc/platforms/powermac/pmac.h
@@ -33,7 +33,6 @@ extern void pmac_setup_pci_dma(void);
 extern void pmac_check_ht_link(void);
 
 extern void pmac_setup_smp(void);
-extern void pmac32_cpu_die(void);
 extern void low_cpu_die(void) __attribute__((noreturn));
 
 extern int pmac_nvram_init(void);
diff --git a/arch/powerpc/platforms/powermac/setup.c b/arch/powerpc/platforms/powermac/setup.c
index d5aceb7fb125..aa45281bd296 100644
--- a/arch/powerpc/platforms/powermac/setup.c
+++ b/arch/powerpc/platforms/powermac/setup.c
@@ -650,51 +650,6 @@ static int pmac_pci_probe_mode(struct pci_bus *bus)
 		return PCI_PROBE_NORMAL;
 	return PCI_PROBE_DEVTREE;
 }
-
-#ifdef CONFIG_HOTPLUG_CPU
-/* access per cpu vars from generic smp.c */
-DECLARE_PER_CPU(int, cpu_state);
-
-static void pmac64_cpu_die(void)
-{
-	/*
-	 * turn off as much as possible, we'll be
-	 * kicked out as this will only be invoked
-	 * on core99 platforms for now ...
-	 */
-
-	printk(KERN_INFO "CPU#%d offline\n", smp_processor_id());
-	__get_cpu_var(cpu_state) = CPU_DEAD;
-	smp_wmb();
-
-	/*
-	 * during the path that leads here preemption is disabled,
-	 * reenable it now so that when coming up preempt count is
-	 * zero correctly
-	 */
-	preempt_enable();
-
-	/*
-	 * hard-disable interrupts for the non-NAP case, the NAP code
-	 * needs to re-enable interrupts (but soft-disables them)
-	 */
-	hard_irq_disable();
-
-	while (1) {
-		/* let's not take timer interrupts too often ... */
-		set_dec(0x7fffffff);
-
-		/* should always be true at this point */
-		if (cpu_has_feature(CPU_FTR_CAN_NAP))
-			power4_cpu_offline_powersave();
-		else {
-			HMT_low();
-			HMT_very_low();
-		}
-	}
-}
-#endif /* CONFIG_HOTPLUG_CPU */
-
 #endif /* CONFIG_PPC64 */
 
 define_machine(powermac) {
@@ -726,15 +681,4 @@ define_machine(powermac) {
 	.pcibios_after_init	= pmac_pcibios_after_init,
 	.phys_mem_access_prot	= pci_phys_mem_access_prot,
 #endif
-#ifdef CONFIG_HOTPLUG_CPU
-#ifdef CONFIG_PPC64
-	.cpu_die		= pmac64_cpu_die,
-#endif
-#ifdef CONFIG_PPC32
-	.cpu_die		= pmac32_cpu_die,
-#endif
-#endif
-#if defined(CONFIG_HOTPLUG_CPU) && defined(CONFIG_PPC32)
-	.cpu_die		= generic_mach_cpu_die,
-#endif
 };
diff --git a/arch/powerpc/platforms/powermac/smp.c b/arch/powerpc/platforms/powermac/smp.c
index c95215f4f8b6..a830c5e80657 100644
--- a/arch/powerpc/platforms/powermac/smp.c
+++ b/arch/powerpc/platforms/powermac/smp.c
@@ -840,92 +840,149 @@ static void __devinit smp_core99_setup_cpu(int cpu_nr)
 
 	/* Setup openpic */
 	mpic_setup_this_cpu();
+}
 
-	if (cpu_nr == 0) {
-#ifdef CONFIG_PPC64
-		extern void g5_phy_disable_cpu1(void);
+#ifdef CONFIG_HOTPLUG_CPU
+static int smp_core99_cpu_notify(struct notifier_block *self,
+				 unsigned long action, void *hcpu)
+{
+	int rc;
 
-		/* Close i2c bus if it was used for tb sync */
+	switch(action) {
+	case CPU_UP_PREPARE:
+	case CPU_UP_PREPARE_FROZEN:
+		/* Open i2c bus if it was used for tb sync */
 		if (pmac_tb_clock_chip_host) {
-			pmac_i2c_close(pmac_tb_clock_chip_host);
-			pmac_tb_clock_chip_host	= NULL;
+			rc = pmac_i2c_open(pmac_tb_clock_chip_host, 1);
+			if (rc) {
+				pr_err("Failed to open i2c bus for time sync\n");
+				return notifier_from_errno(rc);
+			}
 		}
+		break;
+	case CPU_ONLINE:
+	case CPU_UP_CANCELED:
+		/* Close i2c bus if it was used for tb sync */
+		if (pmac_tb_clock_chip_host)
+			pmac_i2c_close(pmac_tb_clock_chip_host);
+		break;
+	default:
+		break;
+	}
+	return NOTIFY_OK;
+}
 
-		/* If we didn't start the second CPU, we must take
-		 * it off the bus
-		 */
-		if (of_machine_is_compatible("MacRISC4") &&
-		    num_online_cpus() < 2)		
-			g5_phy_disable_cpu1();
-#endif /* CONFIG_PPC64 */
+static struct notifier_block __cpuinitdata smp_core99_cpu_nb = {
+	.notifier_call	= smp_core99_cpu_notify,
+};
+#endif /* CONFIG_HOTPLUG_CPU */
+
+static void __init smp_core99_bringup_done(void)
+{
+#ifdef CONFIG_PPC64
+	extern void g5_phy_disable_cpu1(void);
+
+	/* Close i2c bus if it was used for tb sync */
+	if (pmac_tb_clock_chip_host)
+		pmac_i2c_close(pmac_tb_clock_chip_host);
 
-		if (ppc_md.progress)
-			ppc_md.progress("core99_setup_cpu 0 done", 0x349);
+	/* If we didn't start the second CPU, we must take
+	 * it off the bus.
+	 */
+	if (of_machine_is_compatible("MacRISC4") &&
+	    num_online_cpus() < 2) {
+		set_cpu_present(1, false);
+		g5_phy_disable_cpu1();
 	}
-}
+#endif /* CONFIG_PPC64 */
 
+#ifdef CONFIG_HOTPLUG_CPU
+	register_cpu_notifier(&smp_core99_cpu_nb);
+#endif
+	if (ppc_md.progress)
+		ppc_md.progress("smp_core99_bringup_done", 0x349);
+}
 
-#if defined(CONFIG_HOTPLUG_CPU) && defined(CONFIG_PPC32)
+#ifdef CONFIG_HOTPLUG_CPU
 
-int smp_core99_cpu_disable(void)
+static int smp_core99_cpu_disable(void)
 {
-	set_cpu_online(smp_processor_id(), false);
+	int rc = generic_cpu_disable();
+	if (rc)
+		return rc;
 
-	/* XXX reset cpu affinity here */
 	mpic_cpu_set_priority(0xf);
-	asm volatile("mtdec %0" : : "r" (0x7fffffff));
-	mb();
-	udelay(20);
-	asm volatile("mtdec %0" : : "r" (0x7fffffff));
+
 	return 0;
 }
 
-static int cpu_dead[NR_CPUS];
+#ifdef CONFIG_PPC32
 
-void pmac32_cpu_die(void)
+static void pmac_cpu_die(void)
 {
+	int cpu = smp_processor_id();
+
 	local_irq_disable();
-	cpu_dead[smp_processor_id()] = 1;
+	idle_task_exit();
+	pr_debug("CPU%d offline\n", cpu);
+	generic_set_cpu_dead(cpu);
+	smp_wmb();
 	mb();
 	low_cpu_die();
 }
 
-void smp_core99_cpu_die(unsigned int cpu)
+#else /* CONFIG_PPC32 */
+
+static void pmac_cpu_die(void)
 {
-	int timeout;
+	int cpu = smp_processor_id();
 
-	timeout = 1000;
-	while (!cpu_dead[cpu]) {
-		if (--timeout == 0) {
-			printk("CPU %u refused to die!\n", cpu);
-			break;
-		}
-		msleep(1);
+	local_irq_disable();
+	idle_task_exit();
+
+	/*
+	 * turn off as much as possible, we'll be
+	 * kicked out as this will only be invoked
+	 * on core99 platforms for now ...
+	 */
+
+	printk(KERN_INFO "CPU#%d offline\n", cpu);
+	generic_set_cpu_dead(cpu);
+	smp_wmb();
+
+	/*
+	 * Re-enable interrupts. The NAP code needs to enable them
+	 * anyways, do it now so we deal with the case where one already
+	 * happened while soft-disabled.
+	 * We shouldn't get any external interrupts, only decrementer, and the
+	 * decrementer handler is safe for use on offline CPUs
+	 */
+	local_irq_enable();
+
+	while (1) {
+		/* let's not take timer interrupts too often ... */
+		set_dec(0x7fffffff);
+
+		/* Enter NAP mode */
+		power4_idle();
 	}
-	cpu_dead[cpu] = 0;
 }
 
-#endif /* CONFIG_HOTPLUG_CPU && CONFIG_PP32 */
+#endif /* else CONFIG_PPC32 */
+#endif /* CONFIG_HOTPLUG_CPU */
 
 /* Core99 Macs (dual G4s and G5s) */
 struct smp_ops_t core99_smp_ops = {
 	.message_pass	= smp_mpic_message_pass,
 	.probe		= smp_core99_probe,
+	.bringup_done	= smp_core99_bringup_done,
 	.kick_cpu	= smp_core99_kick_cpu,
 	.setup_cpu	= smp_core99_setup_cpu,
 	.give_timebase	= smp_core99_give_timebase,
 	.take_timebase	= smp_core99_take_timebase,
 #if defined(CONFIG_HOTPLUG_CPU)
-# if defined(CONFIG_PPC32)
 	.cpu_disable	= smp_core99_cpu_disable,
-	.cpu_die	= smp_core99_cpu_die,
-# endif
-# if defined(CONFIG_PPC64)
-	.cpu_disable	= generic_cpu_disable,
 	.cpu_die	= generic_cpu_die,
-	/* intentionally do *NOT* assign cpu_enable,
-	 * the generic code will use kick_cpu then! */
-# endif
 #endif
 };
 
@@ -957,5 +1014,10 @@ void __init pmac_setup_smp(void)
 		smp_ops = &psurge_smp_ops;
 	}
 #endif /* CONFIG_PPC32 */
+
+#ifdef CONFIG_HOTPLUG_CPU
+	ppc_md.cpu_die = pmac_cpu_die;
+#endif
 }
 
+
diff --git a/arch/powerpc/platforms/ps3/interrupt.c b/arch/powerpc/platforms/ps3/interrupt.c
index 3988c86682a5..f2f6413b81d3 100644
--- a/arch/powerpc/platforms/ps3/interrupt.c
+++ b/arch/powerpc/platforms/ps3/interrupt.c
@@ -194,7 +194,7 @@ static int ps3_virq_setup(enum ps3_cpu_binding cpu, unsigned long outlet,
 	pr_debug("%s:%d: outlet %lu => cpu %u, virq %u\n", __func__, __LINE__,
 		outlet, cpu, *virq);
 
-	result = set_irq_chip_data(*virq, pd);
+	result = irq_set_chip_data(*virq, pd);
 
 	if (result) {
 		pr_debug("%s:%d: set_irq_chip_data failed\n",
@@ -221,12 +221,12 @@ fail_create:
 
 static int ps3_virq_destroy(unsigned int virq)
 {
-	const struct ps3_private *pd = get_irq_chip_data(virq);
+	const struct ps3_private *pd = irq_get_chip_data(virq);
 
 	pr_debug("%s:%d: ppe_id %llu, thread_id %llu, virq %u\n", __func__,
 		__LINE__, pd->ppe_id, pd->thread_id, virq);
 
-	set_irq_chip_data(virq, NULL);
+	irq_set_chip_data(virq, NULL);
 	irq_dispose_mapping(virq);
 
 	pr_debug("%s:%d <-\n", __func__, __LINE__);
@@ -256,7 +256,7 @@ int ps3_irq_plug_setup(enum ps3_cpu_binding cpu, unsigned long outlet,
 		goto fail_setup;
 	}
 
-	pd = get_irq_chip_data(*virq);
+	pd = irq_get_chip_data(*virq);
 
 	/* Binds outlet to cpu + virq. */
 
@@ -291,7 +291,7 @@ EXPORT_SYMBOL_GPL(ps3_irq_plug_setup);
 int ps3_irq_plug_destroy(unsigned int virq)
 {
 	int result;
-	const struct ps3_private *pd = get_irq_chip_data(virq);
+	const struct ps3_private *pd = irq_get_chip_data(virq);
 
 	pr_debug("%s:%d: ppe_id %llu, thread_id %llu, virq %u\n", __func__,
 		__LINE__, pd->ppe_id, pd->thread_id, virq);
@@ -661,7 +661,7 @@ static void dump_bmp(struct ps3_private* pd) {};
 
 static void ps3_host_unmap(struct irq_host *h, unsigned int virq)
 {
-	set_irq_chip_data(virq, NULL);
+	irq_set_chip_data(virq, NULL);
 }
 
 static int ps3_host_map(struct irq_host *h, unsigned int virq,
@@ -670,7 +670,7 @@ static int ps3_host_map(struct irq_host *h, unsigned int virq,
 	pr_debug("%s:%d: hwirq %lu, virq %u\n", __func__, __LINE__, hwirq,
 		virq);
 
-	set_irq_chip_and_handler(virq, &ps3_irq_chip, handle_fasteoi_irq);
+	irq_set_chip_and_handler(virq, &ps3_irq_chip, handle_fasteoi_irq);
 
 	return 0;
 }
diff --git a/arch/powerpc/platforms/pseries/dlpar.c b/arch/powerpc/platforms/pseries/dlpar.c
index b74a9230edc9..57ceb92b2288 100644
--- a/arch/powerpc/platforms/pseries/dlpar.c
+++ b/arch/powerpc/platforms/pseries/dlpar.c
@@ -74,7 +74,7 @@ static struct device_node *dlpar_parse_cc_node(struct cc_workarea *ccwa)
 		return NULL;
 
 	/* The configure connector reported name does not contain a
-	 * preceeding '/', so we allocate a buffer large enough to
+	 * preceding '/', so we allocate a buffer large enough to
 	 * prepend this to the full_name.
 	 */
 	name = (char *)ccwa + ccwa->name_offset;
diff --git a/arch/powerpc/platforms/pseries/eeh.c b/arch/powerpc/platforms/pseries/eeh.c
index 3cc4d102b1f1..89649173d3a3 100644
--- a/arch/powerpc/platforms/pseries/eeh.c
+++ b/arch/powerpc/platforms/pseries/eeh.c
@@ -65,7 +65,7 @@
  *  with EEH.
  *
  *  Ideally, a PCI device driver, when suspecting that an isolation
- *  event has occured (e.g. by reading 0xff's), will then ask EEH
+ *  event has occurred (e.g. by reading 0xff's), will then ask EEH
  *  whether this is the case, and then take appropriate steps to
  *  reset the PCI slot, the PCI device, and then resume operations.
  *  However, until that day,  the checking is done here, with the
diff --git a/arch/powerpc/platforms/pseries/hotplug-cpu.c b/arch/powerpc/platforms/pseries/hotplug-cpu.c
index fd50ccd4bac1..ef8c45489e20 100644
--- a/arch/powerpc/platforms/pseries/hotplug-cpu.c
+++ b/arch/powerpc/platforms/pseries/hotplug-cpu.c
@@ -216,7 +216,7 @@ static void pseries_cpu_die(unsigned int cpu)
 		       cpu, pcpu, cpu_status);
 	}
 
-	/* Isolation and deallocation are definatly done by
+	/* Isolation and deallocation are definitely done by
 	 * drslot_chrp_cpu.  If they were not they would be
 	 * done here.  Change isolate state to Isolate and
 	 * change allocation-state to Unusable.
diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c
index 154c464cdca5..6d5412a18b26 100644
--- a/arch/powerpc/platforms/pseries/iommu.c
+++ b/arch/powerpc/platforms/pseries/iommu.c
@@ -272,7 +272,7 @@ static unsigned long tce_get_pSeriesLP(struct iommu_table *tbl, long tcenum)
 	return tce_ret;
 }
 
-/* this is compatable with cells for the device tree property */
+/* this is compatible with cells for the device tree property */
 struct dynamic_dma_window_prop {
 	__be32	liobn;		/* tce table number */
 	__be64	dma_base;	/* address hi,lo */
@@ -976,7 +976,7 @@ static void pci_dma_dev_setup_pSeriesLP(struct pci_dev *dev)
 	pr_debug("pci_dma_dev_setup_pSeriesLP: %s\n", pci_name(dev));
 
 	/* dev setup for LPAR is a little tricky, since the device tree might
-	 * contain the dma-window properties per-device and not neccesarily
+	 * contain the dma-window properties per-device and not necessarily
 	 * for the bus. So we need to search upwards in the tree until we
 	 * either hit a dma-window property, OR find a parent with a table
 	 * already allocated.
@@ -1033,7 +1033,7 @@ static int dma_set_mask_pSeriesLP(struct device *dev, u64 dma_mask)
 
 		/*
 		 * the device tree might contain the dma-window properties
-		 * per-device and not neccesarily for the bus. So we need to
+		 * per-device and not necessarily for the bus. So we need to
 		 * search upwards in the tree until we either hit a dma-window
 		 * property, OR find a parent with a table already allocated.
 		 */
diff --git a/arch/powerpc/platforms/pseries/msi.c b/arch/powerpc/platforms/pseries/msi.c
index 18ac801f8e90..38d24e7e7bb1 100644
--- a/arch/powerpc/platforms/pseries/msi.c
+++ b/arch/powerpc/platforms/pseries/msi.c
@@ -137,7 +137,7 @@ static void rtas_teardown_msi_irqs(struct pci_dev *pdev)
 		if (entry->irq == NO_IRQ)
 			continue;
 
-		set_irq_msi(entry->irq, NULL);
+		irq_set_msi_desc(entry->irq, NULL);
 		irq_dispose_mapping(entry->irq);
 	}
 
@@ -437,7 +437,7 @@ static int rtas_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type)
 		}
 
 		dev_dbg(&pdev->dev, "rtas_msi: allocated virq %d\n", virq);
-		set_irq_msi(virq, entry);
+		irq_set_msi_desc(virq, entry);
 
 		/* Read config space back so we can restore after reset */
 		read_msi_msg(virq, &msg);
diff --git a/arch/powerpc/platforms/pseries/nvram.c b/arch/powerpc/platforms/pseries/nvram.c
index 419707b07248..00cc3a094885 100644
--- a/arch/powerpc/platforms/pseries/nvram.c
+++ b/arch/powerpc/platforms/pseries/nvram.c
@@ -480,8 +480,32 @@ static void oops_to_nvram(struct kmsg_dumper *dumper,
 		const char *new_msgs, unsigned long new_len)
 {
 	static unsigned int oops_count = 0;
+	static bool panicking = false;
 	size_t text_len;
 
+	switch (reason) {
+	case KMSG_DUMP_RESTART:
+	case KMSG_DUMP_HALT:
+	case KMSG_DUMP_POWEROFF:
+		/* These are almost always orderly shutdowns. */
+		return;
+	case KMSG_DUMP_OOPS:
+	case KMSG_DUMP_KEXEC:
+		break;
+	case KMSG_DUMP_PANIC:
+		panicking = true;
+		break;
+	case KMSG_DUMP_EMERG:
+		if (panicking)
+			/* Panic report already captured. */
+			return;
+		break;
+	default:
+		pr_err("%s: ignoring unrecognized KMSG_DUMP_* reason %d\n",
+						__FUNCTION__, (int) reason);
+		return;
+	}
+
 	if (clobbering_unread_rtas_event())
 		return;
 
diff --git a/arch/powerpc/platforms/pseries/offline_states.h b/arch/powerpc/platforms/pseries/offline_states.h
index 75a6f480d931..08672d9136ab 100644
--- a/arch/powerpc/platforms/pseries/offline_states.h
+++ b/arch/powerpc/platforms/pseries/offline_states.h
@@ -34,6 +34,4 @@ static inline void set_default_offline_state(int cpu)
 #endif
 
 extern enum cpu_state_vals get_preferred_offline_state(int cpu);
-extern int start_secondary(void);
-extern void start_secondary_resume(void);
 #endif
diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
index 2a0089a2c829..000724149089 100644
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -114,7 +114,7 @@ static void __init fwnmi_init(void)
 
 static void pseries_8259_cascade(unsigned int irq, struct irq_desc *desc)
 {
-	struct irq_chip *chip = get_irq_desc_chip(desc);
+	struct irq_chip *chip = irq_desc_get_chip(desc);
 	unsigned int cascade_irq = i8259_irq();
 
 	if (cascade_irq != NO_IRQ)
@@ -169,7 +169,7 @@ static void __init pseries_setup_i8259_cascade(void)
 		printk(KERN_DEBUG "pic: PCI 8259 intack at 0x%016lx\n", intack);
 	i8259_init(found, intack);
 	of_node_put(found);
-	set_irq_chained_handler(cascade, pseries_8259_cascade);
+	irq_set_chained_handler(cascade, pseries_8259_cascade);
 }
 
 static void __init pseries_mpic_init_IRQ(void)
@@ -378,7 +378,7 @@ static int __init pSeries_init_panel(void)
 
 	return 0;
 }
-arch_initcall(pSeries_init_panel);
+machine_arch_initcall(pseries, pSeries_init_panel);
 
 static int pseries_set_dabr(unsigned long dabr)
 {
diff --git a/arch/powerpc/platforms/pseries/smp.c b/arch/powerpc/platforms/pseries/smp.c
index 0317cce877c6..a509c5292a67 100644
--- a/arch/powerpc/platforms/pseries/smp.c
+++ b/arch/powerpc/platforms/pseries/smp.c
@@ -64,8 +64,8 @@ int smp_query_cpu_stopped(unsigned int pcpu)
 	int qcss_tok = rtas_token("query-cpu-stopped-state");
 
 	if (qcss_tok == RTAS_UNKNOWN_SERVICE) {
-		printk(KERN_INFO "Firmware doesn't support "
-				"query-cpu-stopped-state\n");
+		printk_once(KERN_INFO
+			"Firmware doesn't support query-cpu-stopped-state\n");
 		return QCSS_HARDWARE_ERROR;
 	}
 
@@ -112,10 +112,10 @@ static inline int __devinit smp_startup_cpu(unsigned int lcpu)
 
 	/* Fixup atomic count: it exited inside IRQ handler. */
 	task_thread_info(paca[lcpu].__current)->preempt_count	= 0;
-
+#ifdef CONFIG_HOTPLUG_CPU
 	if (get_cpu_current_state(lcpu) == CPU_STATE_INACTIVE)
 		goto out;
-
+#endif
 	/* 
 	 * If the RTAS start-cpu token does not exist then presume the
 	 * cpu is already spinning.
@@ -130,7 +130,9 @@ static inline int __devinit smp_startup_cpu(unsigned int lcpu)
 		return 0;
 	}
 
+#ifdef CONFIG_HOTPLUG_CPU
 out:
+#endif
 	return 1;
 }
 
@@ -144,16 +146,15 @@ static void __devinit smp_xics_setup_cpu(int cpu)
 		vpa_init(cpu);
 
 	cpumask_clear_cpu(cpu, of_spin_mask);
+#ifdef CONFIG_HOTPLUG_CPU
 	set_cpu_current_state(cpu, CPU_STATE_ONLINE);
 	set_default_offline_state(cpu);
-
+#endif
 }
 #endif /* CONFIG_XICS */
 
 static void __devinit smp_pSeries_kick_cpu(int nr)
 {
-	long rc;
-	unsigned long hcpuid;
 	BUG_ON(nr < 0 || nr >= NR_CPUS);
 
 	if (!smp_startup_cpu(nr))
@@ -165,16 +166,20 @@ static void __devinit smp_pSeries_kick_cpu(int nr)
 	 * the processor will continue on to secondary_start
 	 */
 	paca[nr].cpu_start = 1;
-
+#ifdef CONFIG_HOTPLUG_CPU
 	set_preferred_offline_state(nr, CPU_STATE_ONLINE);
 
 	if (get_cpu_current_state(nr) == CPU_STATE_INACTIVE) {
+		long rc;
+		unsigned long hcpuid;
+
 		hcpuid = get_hard_smp_processor_id(nr);
 		rc = plpar_hcall_norets(H_PROD, hcpuid);
 		if (rc != H_SUCCESS)
 			printk(KERN_ERR "Error: Prod to wake up processor %d "
 						"Ret= %ld\n", nr, rc);
 	}
+#endif
 }
 
 static int smp_pSeries_cpu_bootable(unsigned int nr)
diff --git a/arch/powerpc/platforms/pseries/xics.c b/arch/powerpc/platforms/pseries/xics.c
index 01fea46c0335..d6901334d66e 100644
--- a/arch/powerpc/platforms/pseries/xics.c
+++ b/arch/powerpc/platforms/pseries/xics.c
@@ -204,33 +204,33 @@ static int get_irq_server(unsigned int virq, const struct cpumask *cpumask,
 
 static void xics_unmask_irq(struct irq_data *d)
 {
-	unsigned int irq;
+	unsigned int hwirq;
 	int call_status;
 	int server;
 
 	pr_devel("xics: unmask virq %d\n", d->irq);
 
-	irq = (unsigned int)irq_map[d->irq].hwirq;
-	pr_devel(" -> map to hwirq 0x%x\n", irq);
-	if (irq == XICS_IPI || irq == XICS_IRQ_SPURIOUS)
+	hwirq = (unsigned int)irq_map[d->irq].hwirq;
+	pr_devel(" -> map to hwirq 0x%x\n", hwirq);
+	if (hwirq == XICS_IPI || hwirq == XICS_IRQ_SPURIOUS)
 		return;
 
 	server = get_irq_server(d->irq, d->affinity, 0);
 
-	call_status = rtas_call(ibm_set_xive, 3, 1, NULL, irq, server,
+	call_status = rtas_call(ibm_set_xive, 3, 1, NULL, hwirq, server,
 				DEFAULT_PRIORITY);
 	if (call_status != 0) {
 		printk(KERN_ERR
 			"%s: ibm_set_xive irq %u server %x returned %d\n",
-			__func__, irq, server, call_status);
+			__func__, hwirq, server, call_status);
 		return;
 	}
 
 	/* Now unmask the interrupt (often a no-op) */
-	call_status = rtas_call(ibm_int_on, 1, 1, NULL, irq);
+	call_status = rtas_call(ibm_int_on, 1, 1, NULL, hwirq);
 	if (call_status != 0) {
 		printk(KERN_ERR "%s: ibm_int_on irq=%u returned %d\n",
-			__func__, irq, call_status);
+			__func__, hwirq, call_status);
 		return;
 	}
 }
@@ -250,46 +250,46 @@ static unsigned int xics_startup(struct irq_data *d)
 	return 0;
 }
 
-static void xics_mask_real_irq(struct irq_data *d)
+static void xics_mask_real_irq(unsigned int hwirq)
 {
 	int call_status;
 
-	if (d->irq == XICS_IPI)
+	if (hwirq == XICS_IPI)
 		return;
 
-	call_status = rtas_call(ibm_int_off, 1, 1, NULL, d->irq);
+	call_status = rtas_call(ibm_int_off, 1, 1, NULL, hwirq);
 	if (call_status != 0) {
 		printk(KERN_ERR "%s: ibm_int_off irq=%u returned %d\n",
-			__func__, d->irq, call_status);
+			__func__, hwirq, call_status);
 		return;
 	}
 
 	/* Have to set XIVE to 0xff to be able to remove a slot */
-	call_status = rtas_call(ibm_set_xive, 3, 1, NULL, d->irq,
+	call_status = rtas_call(ibm_set_xive, 3, 1, NULL, hwirq,
 				default_server, 0xff);
 	if (call_status != 0) {
 		printk(KERN_ERR "%s: ibm_set_xive(0xff) irq=%u returned %d\n",
-			__func__, d->irq, call_status);
+			__func__, hwirq, call_status);
 		return;
 	}
 }
 
 static void xics_mask_irq(struct irq_data *d)
 {
-	unsigned int irq;
+	unsigned int hwirq;
 
 	pr_devel("xics: mask virq %d\n", d->irq);
 
-	irq = (unsigned int)irq_map[d->irq].hwirq;
-	if (irq == XICS_IPI || irq == XICS_IRQ_SPURIOUS)
+	hwirq = (unsigned int)irq_map[d->irq].hwirq;
+	if (hwirq == XICS_IPI || hwirq == XICS_IRQ_SPURIOUS)
 		return;
-	xics_mask_real_irq(d);
+	xics_mask_real_irq(hwirq);
 }
 
 static void xics_mask_unknown_vec(unsigned int vec)
 {
 	printk(KERN_ERR "Interrupt %u (real) is invalid, disabling it.\n", vec);
-	xics_mask_real_irq(irq_get_irq_data(vec));
+	xics_mask_real_irq(vec);
 }
 
 static inline unsigned int xics_xirr_vector(unsigned int xirr)
@@ -373,37 +373,37 @@ static unsigned char pop_cppr(void)
 
 static void xics_eoi_direct(struct irq_data *d)
 {
-	unsigned int irq = (unsigned int)irq_map[d->irq].hwirq;
+	unsigned int hwirq = (unsigned int)irq_map[d->irq].hwirq;
 
 	iosync();
-	direct_xirr_info_set((pop_cppr() << 24) | irq);
+	direct_xirr_info_set((pop_cppr() << 24) | hwirq);
 }
 
 static void xics_eoi_lpar(struct irq_data *d)
 {
-	unsigned int irq = (unsigned int)irq_map[d->irq].hwirq;
+	unsigned int hwirq = (unsigned int)irq_map[d->irq].hwirq;
 
 	iosync();
-	lpar_xirr_info_set((pop_cppr() << 24) | irq);
+	lpar_xirr_info_set((pop_cppr() << 24) | hwirq);
 }
 
 static int
 xics_set_affinity(struct irq_data *d, const struct cpumask *cpumask, bool force)
 {
-	unsigned int irq;
+	unsigned int hwirq;
 	int status;
 	int xics_status[2];
 	int irq_server;
 
-	irq = (unsigned int)irq_map[d->irq].hwirq;
-	if (irq == XICS_IPI || irq == XICS_IRQ_SPURIOUS)
+	hwirq = (unsigned int)irq_map[d->irq].hwirq;
+	if (hwirq == XICS_IPI || hwirq == XICS_IRQ_SPURIOUS)
 		return -1;
 
-	status = rtas_call(ibm_get_xive, 1, 3, xics_status, irq);
+	status = rtas_call(ibm_get_xive, 1, 3, xics_status, hwirq);
 
 	if (status) {
 		printk(KERN_ERR "%s: ibm,get-xive irq=%u returns %d\n",
-			__func__, irq, status);
+			__func__, hwirq, status);
 		return -1;
 	}
 
@@ -418,11 +418,11 @@ xics_set_affinity(struct irq_data *d, const struct cpumask *cpumask, bool force)
 	}
 
 	status = rtas_call(ibm_set_xive, 3, 1, NULL,
-				irq, irq_server, xics_status[1]);
+				hwirq, irq_server, xics_status[1]);
 
 	if (status) {
 		printk(KERN_ERR "%s: ibm,set-xive irq=%u returns %d\n",
-			__func__, irq, status);
+			__func__, hwirq, status);
 		return -1;
 	}
 
@@ -470,8 +470,8 @@ static int xics_host_map(struct irq_host *h, unsigned int virq,
 	/* Insert the interrupt mapping into the radix tree for fast lookup */
 	irq_radix_revmap_insert(xics_host, virq, hw);
 
-	irq_to_desc(virq)->status |= IRQ_LEVEL;
-	set_irq_chip_and_handler(virq, xics_irq_chip, handle_fasteoi_irq);
+	irq_set_status_flags(virq, IRQ_LEVEL);
+	irq_set_chip_and_handler(virq, xics_irq_chip, handle_fasteoi_irq);
 	return 0;
 }
 
@@ -600,7 +600,7 @@ static void xics_request_ipi(void)
 	 * IPIs are marked IRQF_DISABLED as they must run with irqs
 	 * disabled
 	 */
-	set_irq_handler(ipi, handle_percpu_irq);
+	irq_set_handler(ipi, handle_percpu_irq);
 	if (firmware_has_feature(FW_FEATURE_LPAR))
 		rc = request_irq(ipi, xics_ipi_action_lpar,
 				IRQF_DISABLED|IRQF_PERCPU, "IPI", NULL);
@@ -874,7 +874,7 @@ void xics_kexec_teardown_cpu(int secondary)
 void xics_migrate_irqs_away(void)
 {
 	int cpu = smp_processor_id(), hw_cpu = hard_smp_processor_id();
-	unsigned int irq, virq;
+	int virq;
 
 	/* If we used to be the default server, move to the new "boot_cpuid" */
 	if (hw_cpu == default_server)
@@ -892,18 +892,19 @@ void xics_migrate_irqs_away(void)
 	for_each_irq(virq) {
 		struct irq_desc *desc;
 		struct irq_chip *chip;
+		unsigned int hwirq;
 		int xics_status[2];
 		int status;
 		unsigned long flags;
 
-		/* We cant set affinity on ISA interrupts */
+		/* We can't set affinity on ISA interrupts */
 		if (virq < NUM_ISA_INTERRUPTS)
 			continue;
 		if (irq_map[virq].host != xics_host)
 			continue;
-		irq = (unsigned int)irq_map[virq].hwirq;
+		hwirq = (unsigned int)irq_map[virq].hwirq;
 		/* We need to get IPIs still. */
-		if (irq == XICS_IPI || irq == XICS_IRQ_SPURIOUS)
+		if (hwirq == XICS_IPI || hwirq == XICS_IRQ_SPURIOUS)
 			continue;
 
 		desc = irq_to_desc(virq);
@@ -912,16 +913,16 @@ void xics_migrate_irqs_away(void)
 		if (desc == NULL || desc->action == NULL)
 			continue;
 
-		chip = get_irq_desc_chip(desc);
+		chip = irq_desc_get_chip(desc);
 		if (chip == NULL || chip->irq_set_affinity == NULL)
 			continue;
 
 		raw_spin_lock_irqsave(&desc->lock, flags);
 
-		status = rtas_call(ibm_get_xive, 1, 3, xics_status, irq);
+		status = rtas_call(ibm_get_xive, 1, 3, xics_status, hwirq);
 		if (status) {
 			printk(KERN_ERR "%s: ibm,get-xive irq=%u returns %d\n",
-					__func__, irq, status);
+					__func__, hwirq, status);
 			goto unlock;
 		}
 
diff --git a/arch/powerpc/sysdev/axonram.c b/arch/powerpc/sysdev/axonram.c
index 27402c7d309d..1636dd896707 100644
--- a/arch/powerpc/sysdev/axonram.c
+++ b/arch/powerpc/sysdev/axonram.c
@@ -95,7 +95,7 @@ axon_ram_irq_handler(int irq, void *dev)
 
 	BUG_ON(!bank);
 
-	dev_err(&device->dev, "Correctable memory error occured\n");
+	dev_err(&device->dev, "Correctable memory error occurred\n");
 	bank->ecc_counter++;
 	return IRQ_HANDLED;
 }
diff --git a/arch/powerpc/sysdev/bestcomm/bestcomm.h b/arch/powerpc/sysdev/bestcomm/bestcomm.h
index 23a95f80dfdb..a0e2e6b19b57 100644
--- a/arch/powerpc/sysdev/bestcomm/bestcomm.h
+++ b/arch/powerpc/sysdev/bestcomm/bestcomm.h
@@ -20,7 +20,7 @@
  * struct bcom_bd - Structure describing a generic BestComm buffer descriptor
  * @status: The current status of this buffer. Exact meaning depends on the
  *          task type
- * @data: An array of u32 extra data.  Size of array is task dependant.
+ * @data: An array of u32 extra data.  Size of array is task dependent.
  *
  * Note: Don't dereference a bcom_bd pointer as an array.  The size of the
  *       bcom_bd is variable.  Use bcom_get_bd() instead.
diff --git a/arch/powerpc/sysdev/bestcomm/bestcomm_priv.h b/arch/powerpc/sysdev/bestcomm/bestcomm_priv.h
index eb0d1c883c31..3b52f3ffbdf8 100644
--- a/arch/powerpc/sysdev/bestcomm/bestcomm_priv.h
+++ b/arch/powerpc/sysdev/bestcomm/bestcomm_priv.h
@@ -97,7 +97,7 @@ struct bcom_task_header {
 	u8	reserved[8];
 };
 
-/* Descriptors stucture & co */
+/* Descriptors structure & co */
 #define BCOM_DESC_NOP		0x000001f8
 #define BCOM_LCD_MASK		0x80000000
 #define BCOM_DRD_EXTENDED	0x40000000
diff --git a/arch/powerpc/sysdev/cpm1.c b/arch/powerpc/sysdev/cpm1.c
index 0476bcc7c3e1..e0bc944eb23f 100644
--- a/arch/powerpc/sysdev/cpm1.c
+++ b/arch/powerpc/sysdev/cpm1.c
@@ -103,8 +103,8 @@ static int cpm_pic_host_map(struct irq_host *h, unsigned int virq,
 {
 	pr_debug("cpm_pic_host_map(%d, 0x%lx)\n", virq, hw);
 
-	irq_to_desc(virq)->status |= IRQ_LEVEL;
-	set_irq_chip_and_handler(virq, &cpm_pic, handle_fasteoi_irq);
+	irq_set_status_flags(virq, IRQ_LEVEL);
+	irq_set_chip_and_handler(virq, &cpm_pic, handle_fasteoi_irq);
 	return 0;
 }
 
@@ -223,7 +223,7 @@ void __init cpm_reset(void)
 
 	/* Set SDMA Bus Request priority 5.
 	 * On 860T, this also enables FEC priority 6.  I am not sure
-	 * this is what we realy want for some applications, but the
+	 * this is what we really want for some applications, but the
 	 * manual recommends it.
 	 * Bit 25, FAM can also be set to use FEC aggressive mode (860T).
 	 */
diff --git a/arch/powerpc/sysdev/cpm2_pic.c b/arch/powerpc/sysdev/cpm2_pic.c
index 473032556715..5495c1be472b 100644
--- a/arch/powerpc/sysdev/cpm2_pic.c
+++ b/arch/powerpc/sysdev/cpm2_pic.c
@@ -115,32 +115,25 @@ static void cpm2_ack(struct irq_data *d)
 
 static void cpm2_end_irq(struct irq_data *d)
 {
-	struct irq_desc *desc;
 	int	bit, word;
 	unsigned int irq_nr = virq_to_hw(d->irq);
 
-	desc = irq_to_desc(irq_nr);
-	if (!(desc->status & (IRQ_DISABLED|IRQ_INPROGRESS))
-			&& desc->action) {
-
-		bit = irq_to_siubit[irq_nr];
-		word = irq_to_siureg[irq_nr];
+	bit = irq_to_siubit[irq_nr];
+	word = irq_to_siureg[irq_nr];
 
-		ppc_cached_irq_mask[word] |= 1 << bit;
-		out_be32(&cpm2_intctl->ic_simrh + word, ppc_cached_irq_mask[word]);
+	ppc_cached_irq_mask[word] |= 1 << bit;
+	out_be32(&cpm2_intctl->ic_simrh + word, ppc_cached_irq_mask[word]);
 
-		/*
-		 * Work around large numbers of spurious IRQs on PowerPC 82xx
-		 * systems.
-		 */
-		mb();
-	}
+	/*
+	 * Work around large numbers of spurious IRQs on PowerPC 82xx
+	 * systems.
+	 */
+	mb();
 }
 
 static int cpm2_set_irq_type(struct irq_data *d, unsigned int flow_type)
 {
 	unsigned int src = virq_to_hw(d->irq);
-	struct irq_desc *desc = irq_to_desc(d->irq);
 	unsigned int vold, vnew, edibit;
 
 	/* Port C interrupts are either IRQ_TYPE_EDGE_FALLING or
@@ -162,13 +155,11 @@ static int cpm2_set_irq_type(struct irq_data *d, unsigned int flow_type)
 			goto err_sense;
 	}
 
-	desc->status &= ~(IRQ_TYPE_SENSE_MASK | IRQ_LEVEL);
-	desc->status |= flow_type & IRQ_TYPE_SENSE_MASK;
-	if (flow_type & IRQ_TYPE_LEVEL_LOW)  {
-		desc->status |= IRQ_LEVEL;
-		desc->handle_irq = handle_level_irq;
-	} else
-		desc->handle_irq = handle_edge_irq;
+	irqd_set_trigger_type(d, flow_type);
+	if (flow_type & IRQ_TYPE_LEVEL_LOW)
+		__irq_set_handler_locked(d->irq, handle_level_irq);
+	else
+		__irq_set_handler_locked(d->irq, handle_edge_irq);
 
 	/* internal IRQ senses are LEVEL_LOW
 	 * EXT IRQ and Port C IRQ senses are programmable
@@ -179,7 +170,8 @@ static int cpm2_set_irq_type(struct irq_data *d, unsigned int flow_type)
 		if (src >= CPM2_IRQ_PORTC15 && src <= CPM2_IRQ_PORTC0)
 			edibit = (31 - (CPM2_IRQ_PORTC0 - src));
 		else
-			return (flow_type & IRQ_TYPE_LEVEL_LOW) ? 0 : -EINVAL;
+			return (flow_type & IRQ_TYPE_LEVEL_LOW) ?
+				IRQ_SET_MASK_OK_NOCOPY : -EINVAL;
 
 	vold = in_be32(&cpm2_intctl->ic_siexr);
 
@@ -190,7 +182,7 @@ static int cpm2_set_irq_type(struct irq_data *d, unsigned int flow_type)
 
 	if (vold != vnew)
 		out_be32(&cpm2_intctl->ic_siexr, vnew);
-	return 0;
+	return IRQ_SET_MASK_OK_NOCOPY;
 
 err_sense:
 	pr_err("CPM2 PIC: sense type 0x%x not supported\n", flow_type);
@@ -204,6 +196,7 @@ static struct irq_chip cpm2_pic = {
 	.irq_ack = cpm2_ack,
 	.irq_eoi = cpm2_end_irq,
 	.irq_set_type = cpm2_set_irq_type,
+	.flags = IRQCHIP_EOI_IF_HANDLED,
 };
 
 unsigned int cpm2_get_irq(void)
@@ -226,8 +219,8 @@ static int cpm2_pic_host_map(struct irq_host *h, unsigned int virq,
 {
 	pr_debug("cpm2_pic_host_map(%d, 0x%lx)\n", virq, hw);
 
-	irq_to_desc(virq)->status |= IRQ_LEVEL;
-	set_irq_chip_and_handler(virq, &cpm2_pic, handle_level_irq);
+	irq_set_status_flags(virq, IRQ_LEVEL);
+	irq_set_chip_and_handler(virq, &cpm2_pic, handle_level_irq);
 	return 0;
 }
 
diff --git a/arch/powerpc/sysdev/fsl_msi.c b/arch/powerpc/sysdev/fsl_msi.c
index 58e09b2833f2..d5679dc1e20f 100644
--- a/arch/powerpc/sysdev/fsl_msi.c
+++ b/arch/powerpc/sysdev/fsl_msi.c
@@ -64,10 +64,10 @@ static int fsl_msi_host_map(struct irq_host *h, unsigned int virq,
 	struct fsl_msi *msi_data = h->host_data;
 	struct irq_chip *chip = &fsl_msi_chip;
 
-	irq_to_desc(virq)->status |= IRQ_TYPE_EDGE_FALLING;
+	irq_set_status_flags(virq, IRQ_TYPE_EDGE_FALLING);
 
-	set_irq_chip_data(virq, msi_data);
-	set_irq_chip_and_handler(virq, chip, handle_edge_irq);
+	irq_set_chip_data(virq, msi_data);
+	irq_set_chip_and_handler(virq, chip, handle_edge_irq);
 
 	return 0;
 }
@@ -110,8 +110,8 @@ static void fsl_teardown_msi_irqs(struct pci_dev *pdev)
 	list_for_each_entry(entry, &pdev->msi_list, list) {
 		if (entry->irq == NO_IRQ)
 			continue;
-		msi_data = get_irq_data(entry->irq);
-		set_irq_msi(entry->irq, NULL);
+		msi_data = irq_get_handler_data(entry->irq);
+		irq_set_msi_desc(entry->irq, NULL);
 		msi_bitmap_free_hwirqs(&msi_data->bitmap,
 				       virq_to_hw(entry->irq), 1);
 		irq_dispose_mapping(entry->irq);
@@ -168,8 +168,8 @@ static int fsl_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type)
 			rc = -ENOSPC;
 			goto out_free;
 		}
-		set_irq_data(virq, msi_data);
-		set_irq_msi(virq, entry);
+		irq_set_handler_data(virq, msi_data);
+		irq_set_msi_desc(virq, entry);
 
 		fsl_compose_msi_msg(pdev, hwirq, &msg, msi_data);
 		write_msi_msg(virq, &msg);
@@ -183,7 +183,8 @@ out_free:
 
 static void fsl_msi_cascade(unsigned int irq, struct irq_desc *desc)
 {
-	struct irq_chip *chip = get_irq_desc_chip(desc);
+	struct irq_chip *chip = irq_desc_get_chip(desc);
+	struct irq_data *idata = irq_desc_get_irq_data(desc);
 	unsigned int cascade_irq;
 	struct fsl_msi *msi_data;
 	int msir_index = -1;
@@ -192,20 +193,20 @@ static void fsl_msi_cascade(unsigned int irq, struct irq_desc *desc)
 	u32 have_shift = 0;
 	struct fsl_msi_cascade_data *cascade_data;
 
-	cascade_data = (struct fsl_msi_cascade_data *)get_irq_data(irq);
+	cascade_data = (struct fsl_msi_cascade_data *)irq_get_handler_data(irq);
 	msi_data = cascade_data->msi_data;
 
 	raw_spin_lock(&desc->lock);
 	if ((msi_data->feature &  FSL_PIC_IP_MASK) == FSL_PIC_IP_IPIC) {
 		if (chip->irq_mask_ack)
-			chip->irq_mask_ack(&desc->irq_data);
+			chip->irq_mask_ack(idata);
 		else {
-			chip->irq_mask(&desc->irq_data);
-			chip->irq_ack(&desc->irq_data);
+			chip->irq_mask(idata);
+			chip->irq_ack(idata);
 		}
 	}
 
-	if (unlikely(desc->status & IRQ_INPROGRESS))
+	if (unlikely(irqd_irq_inprogress(idata)))
 		goto unlock;
 
 	msir_index = cascade_data->index;
@@ -213,7 +214,7 @@ static void fsl_msi_cascade(unsigned int irq, struct irq_desc *desc)
 	if (msir_index >= NR_MSI_REG)
 		cascade_irq = NO_IRQ;
 
-	desc->status |= IRQ_INPROGRESS;
+	irqd_set_chained_irq_inprogress(idata);
 	switch (msi_data->feature & FSL_PIC_IP_MASK) {
 	case FSL_PIC_IP_MPIC:
 		msir_value = fsl_msi_read(msi_data->msi_regs,
@@ -235,15 +236,15 @@ static void fsl_msi_cascade(unsigned int irq, struct irq_desc *desc)
 		have_shift += intr_index + 1;
 		msir_value = msir_value >> (intr_index + 1);
 	}
-	desc->status &= ~IRQ_INPROGRESS;
+	irqd_clr_chained_irq_inprogress(idata);
 
 	switch (msi_data->feature & FSL_PIC_IP_MASK) {
 	case FSL_PIC_IP_MPIC:
-		chip->irq_eoi(&desc->irq_data);
+		chip->irq_eoi(idata);
 		break;
 	case FSL_PIC_IP_IPIC:
-		if (!(desc->status & IRQ_DISABLED) && chip->irq_unmask)
-			chip->irq_unmask(&desc->irq_data);
+		if (!irqd_irq_disabled(idata) && chip->irq_unmask)
+			chip->irq_unmask(idata);
 		break;
 	}
 unlock:
@@ -261,7 +262,7 @@ static int fsl_of_msi_remove(struct platform_device *ofdev)
 	for (i = 0; i < NR_MSI_REG; i++) {
 		virq = msi->msi_virqs[i];
 		if (virq != NO_IRQ) {
-			cascade_data = get_irq_data(virq);
+			cascade_data = irq_get_handler_data(virq);
 			kfree(cascade_data);
 			irq_dispose_mapping(virq);
 		}
@@ -297,8 +298,8 @@ static int __devinit fsl_msi_setup_hwirq(struct fsl_msi *msi,
 	msi->msi_virqs[irq_index] = virt_msir;
 	cascade_data->index = offset + irq_index;
 	cascade_data->msi_data = msi;
-	set_irq_data(virt_msir, cascade_data);
-	set_irq_chained_handler(virt_msir, fsl_msi_cascade);
+	irq_set_handler_data(virt_msir, cascade_data);
+	irq_set_chained_handler(virt_msir, fsl_msi_cascade);
 
 	return 0;
 }
diff --git a/arch/powerpc/sysdev/i8259.c b/arch/powerpc/sysdev/i8259.c
index aeda4c8d0a0a..142770cb84b6 100644
--- a/arch/powerpc/sysdev/i8259.c
+++ b/arch/powerpc/sysdev/i8259.c
@@ -175,13 +175,13 @@ static int i8259_host_map(struct irq_host *h, unsigned int virq,
 
 	/* We block the internal cascade */
 	if (hw == 2)
-		irq_to_desc(virq)->status |= IRQ_NOREQUEST;
+		irq_set_status_flags(virq, IRQ_NOREQUEST);
 
 	/* We use the level handler only for now, we might want to
 	 * be more cautious here but that works for now
 	 */
-	irq_to_desc(virq)->status |= IRQ_LEVEL;
-	set_irq_chip_and_handler(virq, &i8259_pic, handle_level_irq);
+	irq_set_status_flags(virq, IRQ_LEVEL);
+	irq_set_chip_and_handler(virq, &i8259_pic, handle_level_irq);
 	return 0;
 }
 
@@ -191,7 +191,7 @@ static void i8259_host_unmap(struct irq_host *h, unsigned int virq)
 	i8259_mask_irq(irq_get_irq_data(virq));
 
 	/* remove chip and handler */
-	set_irq_chip_and_handler(virq, NULL, NULL);
+	irq_set_chip_and_handler(virq, NULL, NULL);
 
 	/* Make sure it's completed */
 	synchronize_irq(virq);
diff --git a/arch/powerpc/sysdev/indirect_pci.c b/arch/powerpc/sysdev/indirect_pci.c
index 7ed809676642..82fdad885d20 100644
--- a/arch/powerpc/sysdev/indirect_pci.c
+++ b/arch/powerpc/sysdev/indirect_pci.c
@@ -117,7 +117,7 @@ indirect_write_config(struct pci_bus *bus, unsigned int devfn, int offset,
 		out_le32(hose->cfg_addr, (0x80000000 | (bus_no << 16) |
 			 (devfn << 8) | reg | cfg_type));
 
-	/* surpress setting of PCI_PRIMARY_BUS */
+	/* suppress setting of PCI_PRIMARY_BUS */
 	if (hose->indirect_type & PPC_INDIRECT_TYPE_SURPRESS_PRIMARY_BUS)
 		if ((offset == PCI_PRIMARY_BUS) &&
 			(bus->number == hose->first_busno))
diff --git a/arch/powerpc/sysdev/ipic.c b/arch/powerpc/sysdev/ipic.c
index 497047dc986e..fa438be962b7 100644
--- a/arch/powerpc/sysdev/ipic.c
+++ b/arch/powerpc/sysdev/ipic.c
@@ -605,7 +605,6 @@ static int ipic_set_irq_type(struct irq_data *d, unsigned int flow_type)
 {
 	struct ipic *ipic = ipic_from_irq(d->irq);
 	unsigned int src = ipic_irq_to_hw(d->irq);
-	struct irq_desc *desc = irq_to_desc(d->irq);
 	unsigned int vold, vnew, edibit;
 
 	if (flow_type == IRQ_TYPE_NONE)
@@ -623,17 +622,16 @@ static int ipic_set_irq_type(struct irq_data *d, unsigned int flow_type)
 		printk(KERN_ERR "ipic: edge sense not supported on internal "
 				"interrupts\n");
 		return -EINVAL;
+
 	}
 
-	desc->status &= ~(IRQ_TYPE_SENSE_MASK | IRQ_LEVEL);
-	desc->status |= flow_type & IRQ_TYPE_SENSE_MASK;
+	irqd_set_trigger_type(d, flow_type);
 	if (flow_type & IRQ_TYPE_LEVEL_LOW)  {
-		desc->status |= IRQ_LEVEL;
-		desc->handle_irq = handle_level_irq;
-		desc->irq_data.chip = &ipic_level_irq_chip;
+		__irq_set_handler_locked(d->irq, handle_level_irq);
+		d->chip = &ipic_level_irq_chip;
 	} else {
-		desc->handle_irq = handle_edge_irq;
-		desc->irq_data.chip = &ipic_edge_irq_chip;
+		__irq_set_handler_locked(d->irq, handle_edge_irq);
+		d->chip = &ipic_edge_irq_chip;
 	}
 
 	/* only EXT IRQ senses are programmable on ipic
@@ -655,7 +653,7 @@ static int ipic_set_irq_type(struct irq_data *d, unsigned int flow_type)
 	}
 	if (vold != vnew)
 		ipic_write(ipic->regs, IPIC_SECNR, vnew);
-	return 0;
+	return IRQ_SET_MASK_OK_NOCOPY;
 }
 
 /* level interrupts and edge interrupts have different ack operations */
@@ -687,11 +685,11 @@ static int ipic_host_map(struct irq_host *h, unsigned int virq,
 {
 	struct ipic *ipic = h->host_data;
 
-	set_irq_chip_data(virq, ipic);
-	set_irq_chip_and_handler(virq, &ipic_level_irq_chip, handle_level_irq);
+	irq_set_chip_data(virq, ipic);
+	irq_set_chip_and_handler(virq, &ipic_level_irq_chip, handle_level_irq);
 
 	/* Set default irq type */
-	set_irq_type(virq, IRQ_TYPE_NONE);
+	irq_set_irq_type(virq, IRQ_TYPE_NONE);
 
 	return 0;
 }
diff --git a/arch/powerpc/sysdev/mpc8xx_pic.c b/arch/powerpc/sysdev/mpc8xx_pic.c
index 1a75a7fb4a99..a88800ff4d01 100644
--- a/arch/powerpc/sysdev/mpc8xx_pic.c
+++ b/arch/powerpc/sysdev/mpc8xx_pic.c
@@ -72,13 +72,6 @@ static void mpc8xx_end_irq(struct irq_data *d)
 
 static int mpc8xx_set_irq_type(struct irq_data *d, unsigned int flow_type)
 {
-	struct irq_desc *desc = irq_to_desc(d->irq);
-
-	desc->status &= ~(IRQ_TYPE_SENSE_MASK | IRQ_LEVEL);
-	desc->status |= flow_type & IRQ_TYPE_SENSE_MASK;
-	if (flow_type & (IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_LEVEL_LOW))
-		desc->status |= IRQ_LEVEL;
-
 	if (flow_type & IRQ_TYPE_EDGE_FALLING) {
 		irq_hw_number_t hw = (unsigned int)irq_map[d->irq].hwirq;
 		unsigned int siel = in_be32(&siu_reg->sc_siel);
@@ -87,7 +80,7 @@ static int mpc8xx_set_irq_type(struct irq_data *d, unsigned int flow_type)
 		if ((hw & 1) == 0) {
 			siel |= (0x80000000 >> hw);
 			out_be32(&siu_reg->sc_siel, siel);
-			desc->handle_irq = handle_edge_irq;
+			__irq_set_handler_locked(d->irq, handle_edge_irq);
 		}
 	}
 	return 0;
@@ -124,7 +117,7 @@ static int mpc8xx_pic_host_map(struct irq_host *h, unsigned int virq,
 	pr_debug("mpc8xx_pic_host_map(%d, 0x%lx)\n", virq, hw);
 
 	/* Set default irq handle */
-	set_irq_chip_and_handler(virq, &mpc8xx_pic, handle_level_irq);
+	irq_set_chip_and_handler(virq, &mpc8xx_pic, handle_level_irq);
 	return 0;
 }
 
diff --git a/arch/powerpc/sysdev/mpc8xxx_gpio.c b/arch/powerpc/sysdev/mpc8xxx_gpio.c
index 232e701245d7..0892a2841c2b 100644
--- a/arch/powerpc/sysdev/mpc8xxx_gpio.c
+++ b/arch/powerpc/sysdev/mpc8xxx_gpio.c
@@ -145,7 +145,7 @@ static int mpc8xxx_gpio_to_irq(struct gpio_chip *gc, unsigned offset)
 
 static void mpc8xxx_gpio_irq_cascade(unsigned int irq, struct irq_desc *desc)
 {
-	struct mpc8xxx_gpio_chip *mpc8xxx_gc = get_irq_desc_data(desc);
+	struct mpc8xxx_gpio_chip *mpc8xxx_gc = irq_desc_get_handler_data(desc);
 	struct of_mm_gpio_chip *mm = &mpc8xxx_gc->mm_gc;
 	unsigned int mask;
 
@@ -278,9 +278,9 @@ static int mpc8xxx_gpio_irq_map(struct irq_host *h, unsigned int virq,
 	if (mpc8xxx_gc->of_dev_id_data)
 		mpc8xxx_irq_chip.irq_set_type = mpc8xxx_gc->of_dev_id_data;
 
-	set_irq_chip_data(virq, h->host_data);
-	set_irq_chip_and_handler(virq, &mpc8xxx_irq_chip, handle_level_irq);
-	set_irq_type(virq, IRQ_TYPE_NONE);
+	irq_set_chip_data(virq, h->host_data);
+	irq_set_chip_and_handler(virq, &mpc8xxx_irq_chip, handle_level_irq);
+	irq_set_irq_type(virq, IRQ_TYPE_NONE);
 
 	return 0;
 }
@@ -369,8 +369,8 @@ static void __init mpc8xxx_add_controller(struct device_node *np)
 	out_be32(mm_gc->regs + GPIO_IER, 0xffffffff);
 	out_be32(mm_gc->regs + GPIO_IMR, 0);
 
-	set_irq_data(hwirq, mpc8xxx_gc);
-	set_irq_chained_handler(hwirq, mpc8xxx_gpio_irq_cascade);
+	irq_set_handler_data(hwirq, mpc8xxx_gc);
+	irq_set_chained_handler(hwirq, mpc8xxx_gpio_irq_cascade);
 
 skip_irq:
 	return;
diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c
index 0f7c6718d261..f91c065bed5a 100644
--- a/arch/powerpc/sysdev/mpic.c
+++ b/arch/powerpc/sysdev/mpic.c
@@ -361,7 +361,7 @@ static inline void mpic_ht_end_irq(struct mpic *mpic, unsigned int source)
 }
 
 static void mpic_startup_ht_interrupt(struct mpic *mpic, unsigned int source,
-				      unsigned int irqflags)
+				      bool level)
 {
 	struct mpic_irq_fixup *fixup = &mpic->fixups[source];
 	unsigned long flags;
@@ -370,14 +370,14 @@ static void mpic_startup_ht_interrupt(struct mpic *mpic, unsigned int source,
 	if (fixup->base == NULL)
 		return;
 
-	DBG("startup_ht_interrupt(0x%x, 0x%x) index: %d\n",
-	    source, irqflags, fixup->index);
+	DBG("startup_ht_interrupt(0x%x) index: %d\n",
+	    source, fixup->index);
 	raw_spin_lock_irqsave(&mpic->fixup_lock, flags);
 	/* Enable and configure */
 	writeb(0x10 + 2 * fixup->index, fixup->base + 2);
 	tmp = readl(fixup->base + 4);
 	tmp &= ~(0x23U);
-	if (irqflags & IRQ_LEVEL)
+	if (level)
 		tmp |= 0x22;
 	writel(tmp, fixup->base + 4);
 	raw_spin_unlock_irqrestore(&mpic->fixup_lock, flags);
@@ -389,8 +389,7 @@ static void mpic_startup_ht_interrupt(struct mpic *mpic, unsigned int source,
 #endif
 }
 
-static void mpic_shutdown_ht_interrupt(struct mpic *mpic, unsigned int source,
-				       unsigned int irqflags)
+static void mpic_shutdown_ht_interrupt(struct mpic *mpic, unsigned int source)
 {
 	struct mpic_irq_fixup *fixup = &mpic->fixups[source];
 	unsigned long flags;
@@ -399,7 +398,7 @@ static void mpic_shutdown_ht_interrupt(struct mpic *mpic, unsigned int source,
 	if (fixup->base == NULL)
 		return;
 
-	DBG("shutdown_ht_interrupt(0x%x, 0x%x)\n", source, irqflags);
+	DBG("shutdown_ht_interrupt(0x%x)\n", source);
 
 	/* Disable */
 	raw_spin_lock_irqsave(&mpic->fixup_lock, flags);
@@ -616,7 +615,7 @@ static struct mpic *mpic_find(unsigned int irq)
 	if (irq < NUM_ISA_INTERRUPTS)
 		return NULL;
 
-	return get_irq_chip_data(irq);
+	return irq_get_chip_data(irq);
 }
 
 /* Determine if the linux irq is an IPI */
@@ -650,7 +649,7 @@ static inline struct mpic * mpic_from_ipi(struct irq_data *d)
 /* Get the mpic structure from the irq number */
 static inline struct mpic * mpic_from_irq(unsigned int irq)
 {
-	return get_irq_chip_data(irq);
+	return irq_get_chip_data(irq);
 }
 
 /* Get the mpic structure from the irq data */
@@ -738,7 +737,7 @@ static void mpic_unmask_ht_irq(struct irq_data *d)
 
 	mpic_unmask_irq(d);
 
-	if (irq_to_desc(d->irq)->status & IRQ_LEVEL)
+	if (irqd_is_level_type(d))
 		mpic_ht_end_irq(mpic, src);
 }
 
@@ -748,7 +747,7 @@ static unsigned int mpic_startup_ht_irq(struct irq_data *d)
 	unsigned int src = mpic_irq_to_hw(d->irq);
 
 	mpic_unmask_irq(d);
-	mpic_startup_ht_interrupt(mpic, src, irq_to_desc(d->irq)->status);
+	mpic_startup_ht_interrupt(mpic, src, irqd_is_level_type(d));
 
 	return 0;
 }
@@ -758,7 +757,7 @@ static void mpic_shutdown_ht_irq(struct irq_data *d)
 	struct mpic *mpic = mpic_from_irq_data(d);
 	unsigned int src = mpic_irq_to_hw(d->irq);
 
-	mpic_shutdown_ht_interrupt(mpic, src, irq_to_desc(d->irq)->status);
+	mpic_shutdown_ht_interrupt(mpic, src);
 	mpic_mask_irq(d);
 }
 
@@ -775,7 +774,7 @@ static void mpic_end_ht_irq(struct irq_data *d)
 	 * latched another edge interrupt coming in anyway
 	 */
 
-	if (irq_to_desc(d->irq)->status & IRQ_LEVEL)
+	if (irqd_is_level_type(d))
 		mpic_ht_end_irq(mpic, src);
 	mpic_eoi(mpic);
 }
@@ -864,7 +863,6 @@ int mpic_set_irq_type(struct irq_data *d, unsigned int flow_type)
 {
 	struct mpic *mpic = mpic_from_irq_data(d);
 	unsigned int src = mpic_irq_to_hw(d->irq);
-	struct irq_desc *desc = irq_to_desc(d->irq);
 	unsigned int vecpri, vold, vnew;
 
 	DBG("mpic: set_irq_type(mpic:@%p,virq:%d,src:0x%x,type:0x%x)\n",
@@ -879,10 +877,7 @@ int mpic_set_irq_type(struct irq_data *d, unsigned int flow_type)
 	if (flow_type == IRQ_TYPE_NONE)
 		flow_type = IRQ_TYPE_LEVEL_LOW;
 
-	desc->status &= ~(IRQ_TYPE_SENSE_MASK | IRQ_LEVEL);
-	desc->status |= flow_type & IRQ_TYPE_SENSE_MASK;
-	if (flow_type & (IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_LEVEL_LOW))
-		desc->status |= IRQ_LEVEL;
+	irqd_set_trigger_type(d, flow_type);
 
 	if (mpic_is_ht_interrupt(mpic, src))
 		vecpri = MPIC_VECPRI_POLARITY_POSITIVE |
@@ -897,7 +892,7 @@ int mpic_set_irq_type(struct irq_data *d, unsigned int flow_type)
 	if (vold != vnew)
 		mpic_irq_write(src, MPIC_INFO(IRQ_VECTOR_PRI), vnew);
 
-	return 0;
+	return IRQ_SET_MASK_OK_NOCOPY;;
 }
 
 void mpic_set_vector(unsigned int virq, unsigned int vector)
@@ -983,8 +978,8 @@ static int mpic_host_map(struct irq_host *h, unsigned int virq,
 		WARN_ON(!(mpic->flags & MPIC_PRIMARY));
 
 		DBG("mpic: mapping as IPI\n");
-		set_irq_chip_data(virq, mpic);
-		set_irq_chip_and_handler(virq, &mpic->hc_ipi,
+		irq_set_chip_data(virq, mpic);
+		irq_set_chip_and_handler(virq, &mpic->hc_ipi,
 					 handle_percpu_irq);
 		return 0;
 	}
@@ -1006,11 +1001,11 @@ static int mpic_host_map(struct irq_host *h, unsigned int virq,
 
 	DBG("mpic: mapping to irq chip @%p\n", chip);
 
-	set_irq_chip_data(virq, mpic);
-	set_irq_chip_and_handler(virq, chip, handle_fasteoi_irq);
+	irq_set_chip_data(virq, mpic);
+	irq_set_chip_and_handler(virq, chip, handle_fasteoi_irq);
 
 	/* Set default irq type */
-	set_irq_type(virq, IRQ_TYPE_NONE);
+	irq_set_irq_type(virq, IRQ_TYPE_NONE);
 
 	/* If the MPIC was reset, then all vectors have already been
 	 * initialized.  Otherwise, a per source lazy initialization
diff --git a/arch/powerpc/sysdev/mpic_pasemi_msi.c b/arch/powerpc/sysdev/mpic_pasemi_msi.c
index 0b7794acfce1..38e62382070c 100644
--- a/arch/powerpc/sysdev/mpic_pasemi_msi.c
+++ b/arch/powerpc/sysdev/mpic_pasemi_msi.c
@@ -81,7 +81,7 @@ static void pasemi_msi_teardown_msi_irqs(struct pci_dev *pdev)
 		if (entry->irq == NO_IRQ)
 			continue;
 
-		set_irq_msi(entry->irq, NULL);
+		irq_set_msi_desc(entry->irq, NULL);
 		msi_bitmap_free_hwirqs(&msi_mpic->msi_bitmap,
 				       virq_to_hw(entry->irq), ALLOC_CHUNK);
 		irq_dispose_mapping(entry->irq);
@@ -131,9 +131,9 @@ static int pasemi_msi_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type)
 		 */
 		mpic_set_vector(virq, 0);
 
-		set_irq_msi(virq, entry);
-		set_irq_chip(virq, &mpic_pasemi_msi_chip);
-		set_irq_type(virq, IRQ_TYPE_EDGE_RISING);
+		irq_set_msi_desc(virq, entry);
+		irq_set_chip(virq, &mpic_pasemi_msi_chip);
+		irq_set_irq_type(virq, IRQ_TYPE_EDGE_RISING);
 
 		pr_debug("pasemi_msi: allocated virq 0x%x (hw 0x%x) " \
 			 "addr 0x%x\n", virq, hwirq, msg.address_lo);
diff --git a/arch/powerpc/sysdev/mpic_u3msi.c b/arch/powerpc/sysdev/mpic_u3msi.c
index 71900ac78270..9a7aa0ed9c1c 100644
--- a/arch/powerpc/sysdev/mpic_u3msi.c
+++ b/arch/powerpc/sysdev/mpic_u3msi.c
@@ -129,7 +129,7 @@ static void u3msi_teardown_msi_irqs(struct pci_dev *pdev)
 		if (entry->irq == NO_IRQ)
 			continue;
 
-		set_irq_msi(entry->irq, NULL);
+		irq_set_msi_desc(entry->irq, NULL);
 		msi_bitmap_free_hwirqs(&msi_mpic->msi_bitmap,
 				       virq_to_hw(entry->irq), 1);
 		irq_dispose_mapping(entry->irq);
@@ -166,9 +166,9 @@ static int u3msi_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type)
 			return -ENOSPC;
 		}
 
-		set_irq_msi(virq, entry);
-		set_irq_chip(virq, &mpic_u3msi_chip);
-		set_irq_type(virq, IRQ_TYPE_EDGE_RISING);
+		irq_set_msi_desc(virq, entry);
+		irq_set_chip(virq, &mpic_u3msi_chip);
+		irq_set_irq_type(virq, IRQ_TYPE_EDGE_RISING);
 
 		pr_debug("u3msi: allocated virq 0x%x (hw 0x%x) addr 0x%lx\n",
 			  virq, hwirq, (unsigned long)addr);
diff --git a/arch/powerpc/sysdev/mv64x60_pic.c b/arch/powerpc/sysdev/mv64x60_pic.c
index bc61ebb8987c..e9c633c7c083 100644
--- a/arch/powerpc/sysdev/mv64x60_pic.c
+++ b/arch/powerpc/sysdev/mv64x60_pic.c
@@ -213,11 +213,12 @@ static int mv64x60_host_map(struct irq_host *h, unsigned int virq,
 {
 	int level1;
 
-	irq_to_desc(virq)->status |= IRQ_LEVEL;
+	irq_set_status_flags(virq, IRQ_LEVEL);
 
 	level1 = (hwirq & MV64x60_LEVEL1_MASK) >> MV64x60_LEVEL1_OFFSET;
 	BUG_ON(level1 > MV64x60_LEVEL1_GPP);
-	set_irq_chip_and_handler(virq, mv64x60_chips[level1], handle_level_irq);
+	irq_set_chip_and_handler(virq, mv64x60_chips[level1],
+				 handle_level_irq);
 
 	return 0;
 }
diff --git a/arch/powerpc/sysdev/ppc4xx_pci.h b/arch/powerpc/sysdev/ppc4xx_pci.h
index 56d9e5deccbf..c39a134e8684 100644
--- a/arch/powerpc/sysdev/ppc4xx_pci.h
+++ b/arch/powerpc/sysdev/ppc4xx_pci.h
@@ -324,7 +324,7 @@
 #define PESDR0_460EX_IHS2		0x036D
 
 /*
- * 460SX addtional DCRs
+ * 460SX additional DCRs
  */
 #define PESDRn_460SX_RCEI		0x02
 
diff --git a/arch/powerpc/sysdev/qe_lib/qe_ic.c b/arch/powerpc/sysdev/qe_lib/qe_ic.c
index 8c9ded8ea07c..832d6924ad1c 100644
--- a/arch/powerpc/sysdev/qe_lib/qe_ic.c
+++ b/arch/powerpc/sysdev/qe_lib/qe_ic.c
@@ -189,7 +189,7 @@ static inline void qe_ic_write(volatile __be32  __iomem * base, unsigned int reg
 
 static inline struct qe_ic *qe_ic_from_irq(unsigned int virq)
 {
-	return get_irq_chip_data(virq);
+	return irq_get_chip_data(virq);
 }
 
 static inline struct qe_ic *qe_ic_from_irq_data(struct irq_data *d)
@@ -267,10 +267,10 @@ static int qe_ic_host_map(struct irq_host *h, unsigned int virq,
 	/* Default chip */
 	chip = &qe_ic->hc_irq;
 
-	set_irq_chip_data(virq, qe_ic);
-	irq_to_desc(virq)->status |= IRQ_LEVEL;
+	irq_set_chip_data(virq, qe_ic);
+	irq_set_status_flags(virq, IRQ_LEVEL);
 
-	set_irq_chip_and_handler(virq, chip, handle_level_irq);
+	irq_set_chip_and_handler(virq, chip, handle_level_irq);
 
 	return 0;
 }
@@ -386,13 +386,13 @@ void __init qe_ic_init(struct device_node *node, unsigned int flags,
 
 	qe_ic_write(qe_ic->regs, QEIC_CICR, temp);
 
-	set_irq_data(qe_ic->virq_low, qe_ic);
-	set_irq_chained_handler(qe_ic->virq_low, low_handler);
+	irq_set_handler_data(qe_ic->virq_low, qe_ic);
+	irq_set_chained_handler(qe_ic->virq_low, low_handler);
 
 	if (qe_ic->virq_high != NO_IRQ &&
 			qe_ic->virq_high != qe_ic->virq_low) {
-		set_irq_data(qe_ic->virq_high, qe_ic);
-		set_irq_chained_handler(qe_ic->virq_high, high_handler);
+		irq_set_handler_data(qe_ic->virq_high, qe_ic);
+		irq_set_chained_handler(qe_ic->virq_high, high_handler);
 	}
 }
 
diff --git a/arch/powerpc/sysdev/tsi108_pci.c b/arch/powerpc/sysdev/tsi108_pci.c
index 02c91db90037..4d18658116e5 100644
--- a/arch/powerpc/sysdev/tsi108_pci.c
+++ b/arch/powerpc/sysdev/tsi108_pci.c
@@ -391,8 +391,8 @@ static int pci_irq_host_map(struct irq_host *h, unsigned int virq,
 	DBG("%s(%d, 0x%lx)\n", __func__, virq, hw);
 	if ((virq >= 1) && (virq <= 4)){
 		irq = virq + IRQ_PCI_INTAD_BASE - 1;
-		irq_to_desc(irq)->status |= IRQ_LEVEL;
-		set_irq_chip(irq, &tsi108_pci_irq);
+		irq_set_status_flags(irq, IRQ_LEVEL);
+		irq_set_chip(irq, &tsi108_pci_irq);
 	}
 	return 0;
 }
@@ -431,7 +431,7 @@ void __init tsi108_pci_int_init(struct device_node *node)
 
 void tsi108_irq_cascade(unsigned int irq, struct irq_desc *desc)
 {
-	struct irq_chip *chip = get_irq_desc_chip(desc);
+	struct irq_chip *chip = irq_desc_get_chip(desc);
 	unsigned int cascade_irq = get_pci_source();
 
 	if (cascade_irq != NO_IRQ)
diff --git a/arch/powerpc/sysdev/uic.c b/arch/powerpc/sysdev/uic.c
index 835f7958b237..5d9138516628 100644
--- a/arch/powerpc/sysdev/uic.c
+++ b/arch/powerpc/sysdev/uic.c
@@ -57,7 +57,6 @@ struct uic {
 
 static void uic_unmask_irq(struct irq_data *d)
 {
-	struct irq_desc *desc = irq_to_desc(d->irq);
 	struct uic *uic = irq_data_get_irq_chip_data(d);
 	unsigned int src = uic_irq_to_hw(d->irq);
 	unsigned long flags;
@@ -66,7 +65,7 @@ static void uic_unmask_irq(struct irq_data *d)
 	sr = 1 << (31-src);
 	spin_lock_irqsave(&uic->lock, flags);
 	/* ack level-triggered interrupts here */
-	if (desc->status & IRQ_LEVEL)
+	if (irqd_is_level_type(d))
 		mtdcr(uic->dcrbase + UIC_SR, sr);
 	er = mfdcr(uic->dcrbase + UIC_ER);
 	er |= sr;
@@ -101,7 +100,6 @@ static void uic_ack_irq(struct irq_data *d)
 
 static void uic_mask_ack_irq(struct irq_data *d)
 {
-	struct irq_desc *desc = irq_to_desc(d->irq);
 	struct uic *uic = irq_data_get_irq_chip_data(d);
 	unsigned int src = uic_irq_to_hw(d->irq);
 	unsigned long flags;
@@ -120,7 +118,7 @@ static void uic_mask_ack_irq(struct irq_data *d)
 	 * level interrupts are ack'ed after the actual
 	 * isr call in the uic_unmask_irq()
 	 */
-	if (!(desc->status & IRQ_LEVEL))
+	if (!irqd_is_level_type(d))
 		mtdcr(uic->dcrbase + UIC_SR, sr);
 	spin_unlock_irqrestore(&uic->lock, flags);
 }
@@ -129,7 +127,6 @@ static int uic_set_irq_type(struct irq_data *d, unsigned int flow_type)
 {
 	struct uic *uic = irq_data_get_irq_chip_data(d);
 	unsigned int src = uic_irq_to_hw(d->irq);
-	struct irq_desc *desc = irq_to_desc(d->irq);
 	unsigned long flags;
 	int trigger, polarity;
 	u32 tr, pr, mask;
@@ -166,11 +163,6 @@ static int uic_set_irq_type(struct irq_data *d, unsigned int flow_type)
 	mtdcr(uic->dcrbase + UIC_PR, pr);
 	mtdcr(uic->dcrbase + UIC_TR, tr);
 
-	desc->status &= ~(IRQ_TYPE_SENSE_MASK | IRQ_LEVEL);
-	desc->status |= flow_type & IRQ_TYPE_SENSE_MASK;
-	if (!trigger)
-		desc->status |= IRQ_LEVEL;
-
 	spin_unlock_irqrestore(&uic->lock, flags);
 
 	return 0;
@@ -190,13 +182,13 @@ static int uic_host_map(struct irq_host *h, unsigned int virq,
 {
 	struct uic *uic = h->host_data;
 
-	set_irq_chip_data(virq, uic);
+	irq_set_chip_data(virq, uic);
 	/* Despite the name, handle_level_irq() works for both level
 	 * and edge irqs on UIC.  FIXME: check this is correct */
-	set_irq_chip_and_handler(virq, &uic_irq_chip, handle_level_irq);
+	irq_set_chip_and_handler(virq, &uic_irq_chip, handle_level_irq);
 
 	/* Set default irq type */
-	set_irq_type(virq, IRQ_TYPE_NONE);
+	irq_set_irq_type(virq, IRQ_TYPE_NONE);
 
 	return 0;
 }
@@ -220,17 +212,18 @@ static struct irq_host_ops uic_host_ops = {
 
 void uic_irq_cascade(unsigned int virq, struct irq_desc *desc)
 {
-	struct irq_chip *chip = get_irq_desc_chip(desc);
-	struct uic *uic = get_irq_data(virq);
+	struct irq_chip *chip = irq_desc_get_chip(desc);
+	struct irq_data *idata = irq_desc_get_irq_data(desc);
+	struct uic *uic = irq_get_handler_data(virq);
 	u32 msr;
 	int src;
 	int subvirq;
 
 	raw_spin_lock(&desc->lock);
-	if (desc->status & IRQ_LEVEL)
-		chip->irq_mask(&desc->irq_data);
+	if (irqd_is_level_type(idata))
+		chip->irq_mask(idata);
 	else
-		chip->irq_mask_ack(&desc->irq_data);
+		chip->irq_mask_ack(idata);
 	raw_spin_unlock(&desc->lock);
 
 	msr = mfdcr(uic->dcrbase + UIC_MSR);
@@ -244,10 +237,10 @@ void uic_irq_cascade(unsigned int virq, struct irq_desc *desc)
 
 uic_irq_ret:
 	raw_spin_lock(&desc->lock);
-	if (desc->status & IRQ_LEVEL)
-		chip->irq_ack(&desc->irq_data);
-	if (!(desc->status & IRQ_DISABLED) && chip->irq_unmask)
-		chip->irq_unmask(&desc->irq_data);
+	if (irqd_is_level_type(idata))
+		chip->irq_ack(idata);
+	if (!irqd_irq_disabled(idata) && chip->irq_unmask)
+		chip->irq_unmask(idata);
 	raw_spin_unlock(&desc->lock);
 }
 
@@ -336,8 +329,8 @@ void __init uic_init_tree(void)
 
 			cascade_virq = irq_of_parse_and_map(np, 0);
 
-			set_irq_data(cascade_virq, uic);
-			set_irq_chained_handler(cascade_virq, uic_irq_cascade);
+			irq_set_handler_data(cascade_virq, uic);
+			irq_set_chained_handler(cascade_virq, uic_irq_cascade);
 
 			/* FIXME: setup critical cascade?? */
 		}
diff --git a/arch/powerpc/sysdev/xilinx_intc.c b/arch/powerpc/sysdev/xilinx_intc.c
index 7436f3ed4df6..0a13fc19e287 100644
--- a/arch/powerpc/sysdev/xilinx_intc.c
+++ b/arch/powerpc/sysdev/xilinx_intc.c
@@ -79,12 +79,6 @@ static void xilinx_intc_mask(struct irq_data *d)
 
 static int xilinx_intc_set_type(struct irq_data *d, unsigned int flow_type)
 {
-	struct irq_desc *desc = irq_to_desc(d->irq);
-
-	desc->status &= ~(IRQ_TYPE_SENSE_MASK | IRQ_LEVEL);
-	desc->status |= flow_type & IRQ_TYPE_SENSE_MASK;
-	if (flow_type & (IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_LEVEL_LOW))
-		desc->status |= IRQ_LEVEL;
 	return 0;
 }
 
@@ -170,15 +164,15 @@ static int xilinx_intc_xlate(struct irq_host *h, struct device_node *ct,
 static int xilinx_intc_map(struct irq_host *h, unsigned int virq,
 				  irq_hw_number_t irq)
 {
-	set_irq_chip_data(virq, h->host_data);
+	irq_set_chip_data(virq, h->host_data);
 
 	if (xilinx_intc_typetable[irq] == IRQ_TYPE_LEVEL_HIGH ||
 	    xilinx_intc_typetable[irq] == IRQ_TYPE_LEVEL_LOW) {
-		set_irq_chip_and_handler(virq, &xilinx_intc_level_irqchip,
-			handle_level_irq);
+		irq_set_chip_and_handler(virq, &xilinx_intc_level_irqchip,
+					 handle_level_irq);
 	} else {
-		set_irq_chip_and_handler(virq, &xilinx_intc_edge_irqchip,
-			handle_edge_irq);
+		irq_set_chip_and_handler(virq, &xilinx_intc_edge_irqchip,
+					 handle_edge_irq);
 	}
 	return 0;
 }
@@ -229,7 +223,7 @@ int xilinx_intc_get_irq(void)
  */
 static void xilinx_i8259_cascade(unsigned int irq, struct irq_desc *desc)
 {
-	struct irq_chip *chip = get_irq_desc_chip(desc);
+	struct irq_chip *chip = irq_desc_get_chip(desc);
 	unsigned int cascade_irq = i8259_irq();
 
 	if (cascade_irq)
@@ -256,7 +250,7 @@ static void __init xilinx_i8259_setup_cascade(void)
 	}
 
 	i8259_init(cascade_node, 0);
-	set_irq_chained_handler(cascade_irq, xilinx_i8259_cascade);
+	irq_set_chained_handler(cascade_irq, xilinx_i8259_cascade);
 
 	/* Program irq 7 (usb/audio), 14/15 (ide) to level sensitive */
 	/* This looks like a dirty hack to me --gcl */
diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c
index d17d04cfb2cd..33794c1d92c3 100644
--- a/arch/powerpc/xmon/xmon.c
+++ b/arch/powerpc/xmon/xmon.c
@@ -821,7 +821,7 @@ cmds(struct pt_regs *excp)
 				memzcan();
 				break;
 			case 'i':
-				show_mem();
+				show_mem(0);
 				break;
 			default:
 				termch = cmd;
diff --git a/arch/s390/include/asm/atomic.h b/arch/s390/include/asm/atomic.h
index 5c5ba10384c2..d9db13810d15 100644
--- a/arch/s390/include/asm/atomic.h
+++ b/arch/s390/include/asm/atomic.h
@@ -9,7 +9,7 @@
  *
  * Atomic operations that C can't guarantee us.
  * Useful for resource counting etc.
- * s390 uses 'Compare And Swap' for atomicity in SMP enviroment.
+ * s390 uses 'Compare And Swap' for atomicity in SMP environment.
  *
  */
 
diff --git a/arch/s390/include/asm/ccwdev.h b/arch/s390/include/asm/ccwdev.h
index ff6f62e0ec3e..623f2fb71774 100644
--- a/arch/s390/include/asm/ccwdev.h
+++ b/arch/s390/include/asm/ccwdev.h
@@ -112,7 +112,6 @@ enum uc_todo {
 
 /**
  * struct ccw driver - device driver for channel attached devices
- * @owner: owning module
  * @ids: ids supported by this driver
  * @probe: function called on probe
  * @remove: function called on remove
@@ -128,10 +127,8 @@ enum uc_todo {
  * @restore: callback for restoring after hibernation
  * @uc_handler: callback for unit check handler
  * @driver: embedded device driver structure
- * @name: device driver name
  */
 struct ccw_driver {
-	struct module *owner;
 	struct ccw_device_id *ids;
 	int (*probe) (struct ccw_device *);
 	void (*remove) (struct ccw_device *);
@@ -147,7 +144,6 @@ struct ccw_driver {
 	int (*restore)(struct ccw_device *);
 	enum uc_todo (*uc_handler) (struct ccw_device *, struct irb *);
 	struct device_driver driver;
-	char *name;
 };
 
 extern struct ccw_device *get_ccwdev_by_busid(struct ccw_driver *cdrv,
diff --git a/arch/s390/include/asm/ccwgroup.h b/arch/s390/include/asm/ccwgroup.h
index c79c1e787b86..f2ea2c56a7e1 100644
--- a/arch/s390/include/asm/ccwgroup.h
+++ b/arch/s390/include/asm/ccwgroup.h
@@ -29,8 +29,6 @@ struct ccwgroup_device {
 
 /**
  * struct ccwgroup_driver - driver for ccw group devices
- * @owner: driver owner
- * @name: driver name
  * @max_slaves: maximum number of slave devices
  * @driver_id: unique id
  * @probe: function called on probe
@@ -46,8 +44,6 @@ struct ccwgroup_device {
  * @driver: embedded driver structure
  */
 struct ccwgroup_driver {
-	struct module *owner;
-	char *name;
 	int max_slaves;
 	unsigned long driver_id;
 
diff --git a/arch/s390/include/asm/cio.h b/arch/s390/include/asm/cio.h
index e34347d567a6..fc50a3342da3 100644
--- a/arch/s390/include/asm/cio.h
+++ b/arch/s390/include/asm/cio.h
@@ -183,7 +183,7 @@ struct esw3 {
  * The irb that is handed to the device driver when an interrupt occurs. For
  * solicited interrupts, the common I/O layer already performs checks whether
  * a field is valid; a field not being valid is always passed as %0.
- * If a unit check occured, @ecw may contain sense data; this is retrieved
+ * If a unit check occurred, @ecw may contain sense data; this is retrieved
  * by the common I/O layer itself if the device doesn't support concurrent
  * sense (so that the device driver never needs to perform basic sene itself).
  * For unsolicited interrupts, the irb is passed as-is (expect for sense data,
diff --git a/arch/s390/include/asm/cmpxchg.h b/arch/s390/include/asm/cmpxchg.h
new file mode 100644
index 000000000000..7488e52efa97
--- /dev/null
+++ b/arch/s390/include/asm/cmpxchg.h
@@ -0,0 +1,225 @@
+/*
+ * Copyright IBM Corp. 1999, 2011
+ *
+ * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>,
+ */
+
+#ifndef __ASM_CMPXCHG_H
+#define __ASM_CMPXCHG_H
+
+#include <linux/types.h>
+
+extern void __xchg_called_with_bad_pointer(void);
+
+static inline unsigned long __xchg(unsigned long x, void *ptr, int size)
+{
+	unsigned long addr, old;
+	int shift;
+
+	switch (size) {
+	case 1:
+		addr = (unsigned long) ptr;
+		shift = (3 ^ (addr & 3)) << 3;
+		addr ^= addr & 3;
+		asm volatile(
+			"	l	%0,%4\n"
+			"0:	lr	0,%0\n"
+			"	nr	0,%3\n"
+			"	or	0,%2\n"
+			"	cs	%0,0,%4\n"
+			"	jl	0b\n"
+			: "=&d" (old), "=Q" (*(int *) addr)
+			: "d" (x << shift), "d" (~(255 << shift)),
+			  "Q" (*(int *) addr) : "memory", "cc", "0");
+		return old >> shift;
+	case 2:
+		addr = (unsigned long) ptr;
+		shift = (2 ^ (addr & 2)) << 3;
+		addr ^= addr & 2;
+		asm volatile(
+			"	l	%0,%4\n"
+			"0:	lr	0,%0\n"
+			"	nr	0,%3\n"
+			"	or	0,%2\n"
+			"	cs	%0,0,%4\n"
+			"	jl	0b\n"
+			: "=&d" (old), "=Q" (*(int *) addr)
+			: "d" (x << shift), "d" (~(65535 << shift)),
+			  "Q" (*(int *) addr) : "memory", "cc", "0");
+		return old >> shift;
+	case 4:
+		asm volatile(
+			"	l	%0,%3\n"
+			"0:	cs	%0,%2,%3\n"
+			"	jl	0b\n"
+			: "=&d" (old), "=Q" (*(int *) ptr)
+			: "d" (x), "Q" (*(int *) ptr)
+			: "memory", "cc");
+		return old;
+#ifdef CONFIG_64BIT
+	case 8:
+		asm volatile(
+			"	lg	%0,%3\n"
+			"0:	csg	%0,%2,%3\n"
+			"	jl	0b\n"
+			: "=&d" (old), "=m" (*(long *) ptr)
+			: "d" (x), "Q" (*(long *) ptr)
+			: "memory", "cc");
+		return old;
+#endif /* CONFIG_64BIT */
+	}
+	__xchg_called_with_bad_pointer();
+	return x;
+}
+
+#define xchg(ptr, x)							  \
+({									  \
+	__typeof__(*(ptr)) __ret;					  \
+	__ret = (__typeof__(*(ptr)))					  \
+		__xchg((unsigned long)(x), (void *)(ptr), sizeof(*(ptr)));\
+	__ret;								  \
+})
+
+/*
+ * Atomic compare and exchange.	 Compare OLD with MEM, if identical,
+ * store NEW in MEM.  Return the initial value in MEM.	Success is
+ * indicated by comparing RETURN with OLD.
+ */
+
+#define __HAVE_ARCH_CMPXCHG
+
+extern void __cmpxchg_called_with_bad_pointer(void);
+
+static inline unsigned long __cmpxchg(void *ptr, unsigned long old,
+				      unsigned long new, int size)
+{
+	unsigned long addr, prev, tmp;
+	int shift;
+
+	switch (size) {
+	case 1:
+		addr = (unsigned long) ptr;
+		shift = (3 ^ (addr & 3)) << 3;
+		addr ^= addr & 3;
+		asm volatile(
+			"	l	%0,%2\n"
+			"0:	nr	%0,%5\n"
+			"	lr	%1,%0\n"
+			"	or	%0,%3\n"
+			"	or	%1,%4\n"
+			"	cs	%0,%1,%2\n"
+			"	jnl	1f\n"
+			"	xr	%1,%0\n"
+			"	nr	%1,%5\n"
+			"	jnz	0b\n"
+			"1:"
+			: "=&d" (prev), "=&d" (tmp), "=Q" (*(int *) ptr)
+			: "d" (old << shift), "d" (new << shift),
+			  "d" (~(255 << shift)), "Q" (*(int *) ptr)
+			: "memory", "cc");
+		return prev >> shift;
+	case 2:
+		addr = (unsigned long) ptr;
+		shift = (2 ^ (addr & 2)) << 3;
+		addr ^= addr & 2;
+		asm volatile(
+			"	l	%0,%2\n"
+			"0:	nr	%0,%5\n"
+			"	lr	%1,%0\n"
+			"	or	%0,%3\n"
+			"	or	%1,%4\n"
+			"	cs	%0,%1,%2\n"
+			"	jnl	1f\n"
+			"	xr	%1,%0\n"
+			"	nr	%1,%5\n"
+			"	jnz	0b\n"
+			"1:"
+			: "=&d" (prev), "=&d" (tmp), "=Q" (*(int *) ptr)
+			: "d" (old << shift), "d" (new << shift),
+			  "d" (~(65535 << shift)), "Q" (*(int *) ptr)
+			: "memory", "cc");
+		return prev >> shift;
+	case 4:
+		asm volatile(
+			"	cs	%0,%3,%1\n"
+			: "=&d" (prev), "=Q" (*(int *) ptr)
+			: "0" (old), "d" (new), "Q" (*(int *) ptr)
+			: "memory", "cc");
+		return prev;
+#ifdef CONFIG_64BIT
+	case 8:
+		asm volatile(
+			"	csg	%0,%3,%1\n"
+			: "=&d" (prev), "=Q" (*(long *) ptr)
+			: "0" (old), "d" (new), "Q" (*(long *) ptr)
+			: "memory", "cc");
+		return prev;
+#endif /* CONFIG_64BIT */
+	}
+	__cmpxchg_called_with_bad_pointer();
+	return old;
+}
+
+#define cmpxchg(ptr, o, n)						\
+	((__typeof__(*(ptr)))__cmpxchg((ptr), (unsigned long)(o),	\
+				       (unsigned long)(n), sizeof(*(ptr))))
+
+#ifdef CONFIG_64BIT
+#define cmpxchg64(ptr, o, n)						\
+({									\
+	BUILD_BUG_ON(sizeof(*(ptr)) != 8);				\
+	cmpxchg((ptr), (o), (n));					\
+})
+#else /* CONFIG_64BIT */
+static inline unsigned long long __cmpxchg64(void *ptr,
+					     unsigned long long old,
+					     unsigned long long new)
+{
+	register_pair rp_old = {.pair = old};
+	register_pair rp_new = {.pair = new};
+
+	asm volatile(
+		"	cds	%0,%2,%1"
+		: "+&d" (rp_old), "=Q" (ptr)
+		: "d" (rp_new), "Q" (ptr)
+		: "cc");
+	return rp_old.pair;
+}
+#define cmpxchg64(ptr, o, n)						\
+	((__typeof__(*(ptr)))__cmpxchg64((ptr),				\
+					 (unsigned long long)(o),	\
+					 (unsigned long long)(n)))
+#endif /* CONFIG_64BIT */
+
+#include <asm-generic/cmpxchg-local.h>
+
+static inline unsigned long __cmpxchg_local(void *ptr,
+					    unsigned long old,
+					    unsigned long new, int size)
+{
+	switch (size) {
+	case 1:
+	case 2:
+	case 4:
+#ifdef CONFIG_64BIT
+	case 8:
+#endif
+		return __cmpxchg(ptr, old, new, size);
+	default:
+		return __cmpxchg_local_generic(ptr, old, new, size);
+	}
+
+	return old;
+}
+
+/*
+ * cmpxchg_local and cmpxchg64_local are atomic wrt current CPU. Always make
+ * them available.
+ */
+#define cmpxchg_local(ptr, o, n)					\
+	((__typeof__(*(ptr)))__cmpxchg_local((ptr), (unsigned long)(o),	\
+			(unsigned long)(n), sizeof(*(ptr))))
+
+#define cmpxchg64_local(ptr, o, n)	cmpxchg64((ptr), (o), (n))
+
+#endif /* __ASM_CMPXCHG_H */
diff --git a/arch/s390/include/asm/system.h b/arch/s390/include/asm/system.h
index 8f8d759f6a7b..d382629a0172 100644
--- a/arch/s390/include/asm/system.h
+++ b/arch/s390/include/asm/system.h
@@ -14,6 +14,7 @@
 #include <asm/setup.h>
 #include <asm/processor.h>
 #include <asm/lowcore.h>
+#include <asm/cmpxchg.h>
 
 #ifdef __KERNEL__
 
@@ -120,161 +121,6 @@ extern int memcpy_real(void *, void *, size_t);
 
 #define nop() asm volatile("nop")
 
-#define xchg(ptr,x)							  \
-({									  \
-	__typeof__(*(ptr)) __ret;					  \
-	__ret = (__typeof__(*(ptr)))					  \
-		__xchg((unsigned long)(x), (void *)(ptr),sizeof(*(ptr))); \
-	__ret;								  \
-})
-
-extern void __xchg_called_with_bad_pointer(void);
-
-static inline unsigned long __xchg(unsigned long x, void * ptr, int size)
-{
-	unsigned long addr, old;
-	int shift;
-
-        switch (size) {
-	case 1:
-		addr = (unsigned long) ptr;
-		shift = (3 ^ (addr & 3)) << 3;
-		addr ^= addr & 3;
-		asm volatile(
-			"	l	%0,%4\n"
-			"0:	lr	0,%0\n"
-			"	nr	0,%3\n"
-			"	or	0,%2\n"
-			"	cs	%0,0,%4\n"
-			"	jl	0b\n"
-			: "=&d" (old), "=Q" (*(int *) addr)
-			: "d" (x << shift), "d" (~(255 << shift)),
-			  "Q" (*(int *) addr) : "memory", "cc", "0");
-		return old >> shift;
-	case 2:
-		addr = (unsigned long) ptr;
-		shift = (2 ^ (addr & 2)) << 3;
-		addr ^= addr & 2;
-		asm volatile(
-			"	l	%0,%4\n"
-			"0:	lr	0,%0\n"
-			"	nr	0,%3\n"
-			"	or	0,%2\n"
-			"	cs	%0,0,%4\n"
-			"	jl	0b\n"
-			: "=&d" (old), "=Q" (*(int *) addr)
-			: "d" (x << shift), "d" (~(65535 << shift)),
-			  "Q" (*(int *) addr) : "memory", "cc", "0");
-		return old >> shift;
-	case 4:
-		asm volatile(
-			"	l	%0,%3\n"
-			"0:	cs	%0,%2,%3\n"
-			"	jl	0b\n"
-			: "=&d" (old), "=Q" (*(int *) ptr)
-			: "d" (x), "Q" (*(int *) ptr)
-			: "memory", "cc");
-		return old;
-#ifdef __s390x__
-	case 8:
-		asm volatile(
-			"	lg	%0,%3\n"
-			"0:	csg	%0,%2,%3\n"
-			"	jl	0b\n"
-			: "=&d" (old), "=m" (*(long *) ptr)
-			: "d" (x), "Q" (*(long *) ptr)
-			: "memory", "cc");
-		return old;
-#endif /* __s390x__ */
-	}
-	__xchg_called_with_bad_pointer();
-	return x;
-}
-
-/*
- * Atomic compare and exchange.  Compare OLD with MEM, if identical,
- * store NEW in MEM.  Return the initial value in MEM.  Success is
- * indicated by comparing RETURN with OLD.
- */
-
-#define __HAVE_ARCH_CMPXCHG 1
-
-#define cmpxchg(ptr, o, n)						\
-	((__typeof__(*(ptr)))__cmpxchg((ptr), (unsigned long)(o),	\
-					(unsigned long)(n), sizeof(*(ptr))))
-
-extern void __cmpxchg_called_with_bad_pointer(void);
-
-static inline unsigned long
-__cmpxchg(volatile void *ptr, unsigned long old, unsigned long new, int size)
-{
-	unsigned long addr, prev, tmp;
-	int shift;
-
-        switch (size) {
-	case 1:
-		addr = (unsigned long) ptr;
-		shift = (3 ^ (addr & 3)) << 3;
-		addr ^= addr & 3;
-		asm volatile(
-			"	l	%0,%2\n"
-			"0:	nr	%0,%5\n"
-			"	lr	%1,%0\n"
-			"	or	%0,%3\n"
-			"	or	%1,%4\n"
-			"	cs	%0,%1,%2\n"
-			"	jnl	1f\n"
-			"	xr	%1,%0\n"
-			"	nr	%1,%5\n"
-			"	jnz	0b\n"
-			"1:"
-			: "=&d" (prev), "=&d" (tmp), "=Q" (*(int *) ptr)
-			: "d" (old << shift), "d" (new << shift),
-			  "d" (~(255 << shift)), "Q" (*(int *) ptr)
-			: "memory", "cc");
-		return prev >> shift;
-	case 2:
-		addr = (unsigned long) ptr;
-		shift = (2 ^ (addr & 2)) << 3;
-		addr ^= addr & 2;
-		asm volatile(
-			"	l	%0,%2\n"
-			"0:	nr	%0,%5\n"
-			"	lr	%1,%0\n"
-			"	or	%0,%3\n"
-			"	or	%1,%4\n"
-			"	cs	%0,%1,%2\n"
-			"	jnl	1f\n"
-			"	xr	%1,%0\n"
-			"	nr	%1,%5\n"
-			"	jnz	0b\n"
-			"1:"
-			: "=&d" (prev), "=&d" (tmp), "=Q" (*(int *) ptr)
-			: "d" (old << shift), "d" (new << shift),
-			  "d" (~(65535 << shift)), "Q" (*(int *) ptr)
-			: "memory", "cc");
-		return prev >> shift;
-	case 4:
-		asm volatile(
-			"	cs	%0,%3,%1\n"
-			: "=&d" (prev), "=Q" (*(int *) ptr)
-			: "0" (old), "d" (new), "Q" (*(int *) ptr)
-			: "memory", "cc");
-		return prev;
-#ifdef __s390x__
-	case 8:
-		asm volatile(
-			"	csg	%0,%3,%1\n"
-			: "=&d" (prev), "=Q" (*(long *) ptr)
-			: "0" (old), "d" (new), "Q" (*(long *) ptr)
-			: "memory", "cc");
-		return prev;
-#endif /* __s390x__ */
-        }
-	__cmpxchg_called_with_bad_pointer();
-	return old;
-}
-
 /*
  * Force strict CPU ordering.
  * And yes, this is required on UP too when we're talking
@@ -353,46 +199,6 @@ __cmpxchg(volatile void *ptr, unsigned long old, unsigned long new, int size)
 	__ctl_load(__dummy, cr, cr);	\
 })
 
-#include <linux/irqflags.h>
-
-#include <asm-generic/cmpxchg-local.h>
-
-static inline unsigned long __cmpxchg_local(volatile void *ptr,
-				      unsigned long old,
-				      unsigned long new, int size)
-{
-	switch (size) {
-	case 1:
-	case 2:
-	case 4:
-#ifdef __s390x__
-	case 8:
-#endif
-		return __cmpxchg(ptr, old, new, size);
-	default:
-		return __cmpxchg_local_generic(ptr, old, new, size);
-	}
-
-	return old;
-}
-
-/*
- * cmpxchg_local and cmpxchg64_local are atomic wrt current CPU. Always make
- * them available.
- */
-#define cmpxchg_local(ptr, o, n)					\
-	((__typeof__(*(ptr)))__cmpxchg_local((ptr), (unsigned long)(o),	\
-			(unsigned long)(n), sizeof(*(ptr))))
-#ifdef __s390x__
-#define cmpxchg64_local(ptr, o, n)					\
-  ({									\
-	BUILD_BUG_ON(sizeof(*(ptr)) != 8);				\
-	cmpxchg_local((ptr), (o), (n));					\
-  })
-#else
-#define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n))
-#endif
-
 /*
  * Use to set psw mask except for the first byte which
  * won't be changed by this function.
diff --git a/arch/s390/include/asm/unistd.h b/arch/s390/include/asm/unistd.h
index 1049ef27c15e..e82152572377 100644
--- a/arch/s390/include/asm/unistd.h
+++ b/arch/s390/include/asm/unistd.h
@@ -272,7 +272,11 @@
 #define __NR_fanotify_init	332
 #define __NR_fanotify_mark	333
 #define __NR_prlimit64		334
-#define NR_syscalls 335
+#define __NR_name_to_handle_at	335
+#define __NR_open_by_handle_at	336
+#define __NR_clock_adjtime	337
+#define __NR_syncfs		338
+#define NR_syscalls 339
 
 /* 
  * There are some system calls that are not present on 64 bit, some
diff --git a/arch/s390/kernel/compat_wrapper.S b/arch/s390/kernel/compat_wrapper.S
index 8e60fb23b90d..1dc96ea08fa8 100644
--- a/arch/s390/kernel/compat_wrapper.S
+++ b/arch/s390/kernel/compat_wrapper.S
@@ -1877,3 +1877,30 @@ sys_prlimit64_wrapper:
 	llgtr	%r4,%r4			# const struct rlimit64 __user *
 	llgtr	%r5,%r5			# struct rlimit64 __user *
 	jg	sys_prlimit64		# branch to system call
+
+	.globl	sys_name_to_handle_at_wrapper
+sys_name_to_handle_at_wrapper:
+	lgfr	%r2,%r2			# int
+	llgtr	%r3,%r3			# const char __user *
+	llgtr	%r4,%r4			# struct file_handle __user *
+	llgtr	%r5,%r5			# int __user *
+	lgfr	%r6,%r6			# int
+	jg	sys_name_to_handle_at
+
+	.globl	compat_sys_open_by_handle_at_wrapper
+compat_sys_open_by_handle_at_wrapper:
+	lgfr	%r2,%r2			# int
+	llgtr	%r3,%r3			# struct file_handle __user *
+	lgfr	%r4,%r4			# int
+	jg	compat_sys_open_by_handle_at
+
+	.globl	compat_sys_clock_adjtime_wrapper
+compat_sys_clock_adjtime_wrapper:
+	lgfr	%r2,%r2			# clockid_t (int)
+	llgtr	%r3,%r3			# struct compat_timex __user *
+	jg	compat_sys_clock_adjtime
+
+	.globl	sys_syncfs_wrapper
+sys_syncfs_wrapper:
+	lgfr	%r2,%r2			# int
+	jg	sys_syncfs
diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c
index 3b7e7dddc324..068f8465c4ee 100644
--- a/arch/s390/kernel/early.c
+++ b/arch/s390/kernel/early.c
@@ -94,6 +94,7 @@ static noinline __init void create_kernel_nss(void)
 	unsigned int sinitrd_pfn, einitrd_pfn;
 #endif
 	int response;
+	int hlen;
 	size_t len;
 	char *savesys_ptr;
 	char defsys_cmd[DEFSYS_CMD_SIZE];
@@ -124,24 +125,27 @@ static noinline __init void create_kernel_nss(void)
 	end_pfn = PFN_UP(__pa(&_end));
 	min_size = end_pfn << 2;
 
-	sprintf(defsys_cmd, "DEFSYS %s 00000-%.5X EW %.5X-%.5X SR %.5X-%.5X",
-		kernel_nss_name, stext_pfn - 1, stext_pfn, eshared_pfn - 1,
-		eshared_pfn, end_pfn);
+	hlen = snprintf(defsys_cmd, DEFSYS_CMD_SIZE,
+			"DEFSYS %s 00000-%.5X EW %.5X-%.5X SR %.5X-%.5X",
+			kernel_nss_name, stext_pfn - 1, stext_pfn,
+			eshared_pfn - 1, eshared_pfn, end_pfn);
 
 #ifdef CONFIG_BLK_DEV_INITRD
 	if (INITRD_START && INITRD_SIZE) {
 		sinitrd_pfn = PFN_DOWN(__pa(INITRD_START));
 		einitrd_pfn = PFN_UP(__pa(INITRD_START + INITRD_SIZE));
 		min_size = einitrd_pfn << 2;
-		sprintf(defsys_cmd, "%s EW %.5X-%.5X", defsys_cmd,
-		sinitrd_pfn, einitrd_pfn);
+		hlen += snprintf(defsys_cmd + hlen, DEFSYS_CMD_SIZE - hlen,
+				 " EW %.5X-%.5X", sinitrd_pfn, einitrd_pfn);
 	}
 #endif
 
-	sprintf(defsys_cmd, "%s EW MINSIZE=%.7iK PARMREGS=0-13",
-		defsys_cmd, min_size);
-	sprintf(savesys_cmd, "SAVESYS %s \n IPL %s",
-		kernel_nss_name, kernel_nss_name);
+	snprintf(defsys_cmd + hlen, DEFSYS_CMD_SIZE - hlen,
+		 " EW MINSIZE=%.7iK PARMREGS=0-13", min_size);
+	defsys_cmd[DEFSYS_CMD_SIZE - 1] = '\0';
+	snprintf(savesys_cmd, SAVESYS_CMD_SIZE, "SAVESYS %s \n IPL %s",
+		 kernel_nss_name, kernel_nss_name);
+	savesys_cmd[SAVESYS_CMD_SIZE - 1] = '\0';
 
 	__cpcmd(defsys_cmd, NULL, 0, &response);
 
diff --git a/arch/s390/kernel/reipl64.S b/arch/s390/kernel/reipl64.S
index 5e73dee63baa..9eabbc90795d 100644
--- a/arch/s390/kernel/reipl64.S
+++ b/arch/s390/kernel/reipl64.S
@@ -78,7 +78,7 @@ do_reipl_asm:	basr	%r13,0
  * in the ESA psw.
  * Bit 31 of the addresses has to be 0 for the
  * 31bit lpswe instruction a fact they appear to have
- * ommited from the pop.
+ * omitted from the pop.
  */
 .Lnewpsw:	.quad	0x0000000080000000
 		.quad	.Lpg1
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index 6f6350826c81..f5434d1ecb31 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -102,16 +102,6 @@ EXPORT_SYMBOL(lowcore_ptr);
 
 #include <asm/setup.h>
 
-static struct resource code_resource = {
-	.name  = "Kernel code",
-	.flags = IORESOURCE_BUSY | IORESOURCE_MEM,
-};
-
-static struct resource data_resource = {
-	.name = "Kernel data",
-	.flags = IORESOURCE_BUSY | IORESOURCE_MEM,
-};
-
 /*
  * condev= and conmode= setup parameter.
  */
@@ -436,21 +426,43 @@ setup_lowcore(void)
 	lowcore_ptr[0] = lc;
 }
 
-static void __init
-setup_resources(void)
+static struct resource code_resource = {
+	.name  = "Kernel code",
+	.flags = IORESOURCE_BUSY | IORESOURCE_MEM,
+};
+
+static struct resource data_resource = {
+	.name = "Kernel data",
+	.flags = IORESOURCE_BUSY | IORESOURCE_MEM,
+};
+
+static struct resource bss_resource = {
+	.name = "Kernel bss",
+	.flags = IORESOURCE_BUSY | IORESOURCE_MEM,
+};
+
+static struct resource __initdata *standard_resources[] = {
+	&code_resource,
+	&data_resource,
+	&bss_resource,
+};
+
+static void __init setup_resources(void)
 {
-	struct resource *res, *sub_res;
-	int i;
+	struct resource *res, *std_res, *sub_res;
+	int i, j;
 
 	code_resource.start = (unsigned long) &_text;
 	code_resource.end = (unsigned long) &_etext - 1;
 	data_resource.start = (unsigned long) &_etext;
 	data_resource.end = (unsigned long) &_edata - 1;
+	bss_resource.start = (unsigned long) &__bss_start;
+	bss_resource.end = (unsigned long) &__bss_stop - 1;
 
 	for (i = 0; i < MEMORY_CHUNKS; i++) {
 		if (!memory_chunk[i].size)
 			continue;
-		res = alloc_bootmem_low(sizeof(struct resource));
+		res = alloc_bootmem_low(sizeof(*res));
 		res->flags = IORESOURCE_BUSY | IORESOURCE_MEM;
 		switch (memory_chunk[i].type) {
 		case CHUNK_READ_WRITE:
@@ -464,40 +476,24 @@ setup_resources(void)
 			res->name = "reserved";
 		}
 		res->start = memory_chunk[i].addr;
-		res->end = memory_chunk[i].addr +  memory_chunk[i].size - 1;
+		res->end = res->start + memory_chunk[i].size - 1;
 		request_resource(&iomem_resource, res);
 
-		if (code_resource.start >= res->start  &&
-			code_resource.start <= res->end &&
-			code_resource.end > res->end) {
-			sub_res = alloc_bootmem_low(sizeof(struct resource));
-			memcpy(sub_res, &code_resource,
-				sizeof(struct resource));
-			sub_res->end = res->end;
-			code_resource.start = res->end + 1;
-			request_resource(res, sub_res);
-		}
-
-		if (code_resource.start >= res->start &&
-			code_resource.start <= res->end &&
-			code_resource.end <= res->end)
-			request_resource(res, &code_resource);
-
-		if (data_resource.start >= res->start &&
-			data_resource.start <= res->end &&
-			data_resource.end > res->end) {
-			sub_res = alloc_bootmem_low(sizeof(struct resource));
-			memcpy(sub_res, &data_resource,
-				sizeof(struct resource));
-			sub_res->end = res->end;
-			data_resource.start = res->end + 1;
-			request_resource(res, sub_res);
+		for (j = 0; j < ARRAY_SIZE(standard_resources); j++) {
+			std_res = standard_resources[j];
+			if (std_res->start < res->start ||
+			    std_res->start > res->end)
+				continue;
+			if (std_res->end > res->end) {
+				sub_res = alloc_bootmem_low(sizeof(*sub_res));
+				*sub_res = *std_res;
+				sub_res->end = res->end;
+				std_res->start = res->end + 1;
+				request_resource(res, sub_res);
+			} else {
+				request_resource(res, std_res);
+			}
 		}
-
-		if (data_resource.start >= res->start &&
-			data_resource.start <= res->end &&
-			data_resource.end <= res->end)
-			request_resource(res, &data_resource);
 	}
 }
 
@@ -712,7 +708,7 @@ static void __init setup_hwcaps(void)
 	 * and 1ULL<<0 as bit 63. Bits 0-31 contain the same information
 	 * as stored by stfl, bits 32-xxx contain additional facilities.
 	 * How many facility words are stored depends on the number of
-	 * doublewords passed to the instruction. The additional facilites
+	 * doublewords passed to the instruction. The additional facilities
 	 * are:
 	 *   Bit 42: decimal floating point facility is installed
 	 *   Bit 44: perform floating point operation facility is installed
diff --git a/arch/s390/kernel/syscalls.S b/arch/s390/kernel/syscalls.S
index a8fee1b14395..9c65fd4ddce0 100644
--- a/arch/s390/kernel/syscalls.S
+++ b/arch/s390/kernel/syscalls.S
@@ -343,3 +343,7 @@ SYSCALL(sys_perf_event_open,sys_perf_event_open,sys_perf_event_open_wrapper)
 SYSCALL(sys_fanotify_init,sys_fanotify_init,sys_fanotify_init_wrapper)
 SYSCALL(sys_fanotify_mark,sys_fanotify_mark,sys_fanotify_mark_wrapper)
 SYSCALL(sys_prlimit64,sys_prlimit64,sys_prlimit64_wrapper)
+SYSCALL(sys_name_to_handle_at,sys_name_to_handle_at,sys_name_to_handle_at_wrapper) /* 335 */
+SYSCALL(sys_open_by_handle_at,sys_open_by_handle_at,compat_sys_open_by_handle_at_wrapper)
+SYSCALL(sys_clock_adjtime,sys_clock_adjtime,compat_sys_clock_adjtime_wrapper)
+SYSCALL(sys_syncfs,sys_syncfs,sys_syncfs_wrapper)
diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c
index 9e7b039458da..87be655557aa 100644
--- a/arch/s390/kernel/time.c
+++ b/arch/s390/kernel/time.c
@@ -724,7 +724,7 @@ static void clock_sync_cpu(struct clock_sync_data *sync)
 }
 
 /*
- * Sync the TOD clock using the port refered to by aibp. This port
+ * Sync the TOD clock using the port referred to by aibp. This port
  * has to be enabled and the other port has to be disabled. The
  * last eacr update has to be more than 1.6 seconds in the past.
  */
@@ -1012,7 +1012,7 @@ static void etr_work_fn(struct work_struct *work)
 		eacr = etr_handle_update(&aib, eacr);
 
 	/*
-	 * Select ports to enable. The prefered synchronization mode is PPS.
+	 * Select ports to enable. The preferred synchronization mode is PPS.
 	 * If a port can be enabled depends on a number of things:
 	 * 1) The port needs to be online and uptodate. A port is not
 	 *    disabled just because it is not uptodate, but it is only
@@ -1091,7 +1091,7 @@ static void etr_work_fn(struct work_struct *work)
 	/*
 	 * Update eacr and try to synchronize the clock. If the update
 	 * of eacr caused a stepping port switch (or if we have to
-	 * assume that a stepping port switch has occured) or the
+	 * assume that a stepping port switch has occurred) or the
 	 * clock syncing failed, reset the sync check control bit
 	 * and set up a timer to try again after 0.5 seconds
 	 */
diff --git a/arch/s390/kernel/vtime.c b/arch/s390/kernel/vtime.c
index 1ccdf4d8aa85..5e8ead4b4aba 100644
--- a/arch/s390/kernel/vtime.c
+++ b/arch/s390/kernel/vtime.c
@@ -44,7 +44,7 @@ static inline void set_vtimer(__u64 expires)
 	__u64 timer;
 
 	asm volatile ("  STPT %0\n"  /* Store current cpu timer value */
-		      "  SPT %1"     /* Set new value immediatly afterwards */
+		      "  SPT %1"     /* Set new value immediately afterwards */
 		      : "=m" (timer) : "m" (expires) );
 	S390_lowcore.system_timer += S390_lowcore.last_update_timer - timer;
 	S390_lowcore.last_update_timer = expires;
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index bade533ba288..30ca85cce314 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -721,7 +721,7 @@ static int __init kvm_s390_init(void)
 
 	/*
 	 * guests can ask for up to 255+1 double words, we need a full page
-	 * to hold the maximum amount of facilites. On the other hand, we
+	 * to hold the maximum amount of facilities. On the other hand, we
 	 * only set facilities that are known to work in KVM.
 	 */
 	facilities = (unsigned long long *) get_zeroed_page(GFP_KERNEL|GFP_DMA);
diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c
index 9194a4b52b22..73c47bd95db3 100644
--- a/arch/s390/kvm/priv.c
+++ b/arch/s390/kvm/priv.c
@@ -311,7 +311,7 @@ int kvm_s390_handle_b2(struct kvm_vcpu *vcpu)
 
 	/*
 	 * a lot of B2 instructions are priviledged. We first check for
-	 * the priviledges ones, that we can handle in the kernel. If the
+	 * the privileged ones, that we can handle in the kernel. If the
 	 * kernel can handle this instruction, we check for the problem
 	 * state bit and (a) handle the instruction or (b) send a code 2
 	 * program check.
diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c
index 2c57806c0858..9217e332b118 100644
--- a/arch/s390/mm/fault.c
+++ b/arch/s390/mm/fault.c
@@ -392,7 +392,7 @@ void __kprobes do_protection_exception(struct pt_regs *regs, long pgm_int_code,
 {
 	int fault;
 
-	/* Protection exception is supressing, decrement psw address. */
+	/* Protection exception is suppressing, decrement psw address. */
 	regs->psw.addr -= (pgm_int_code >> 16);
 	/*
 	 * Check for low-address protection.  This needs to be treated
diff --git a/arch/s390/oprofile/Makefile b/arch/s390/oprofile/Makefile
index d698cddcfbdd..524c4b615821 100644
--- a/arch/s390/oprofile/Makefile
+++ b/arch/s390/oprofile/Makefile
@@ -6,4 +6,5 @@ DRIVER_OBJS = $(addprefix ../../../drivers/oprofile/, \
 		oprofilefs.o oprofile_stats.o  \
 		timer_int.o )
 
-oprofile-y :=	$(DRIVER_OBJS) init.o backtrace.o hwsampler.o
+oprofile-y :=	$(DRIVER_OBJS) init.o backtrace.o
+oprofile-$(CONFIG_64BIT)	+= hwsampler.o
diff --git a/arch/s390/oprofile/init.c b/arch/s390/oprofile/init.c
index 16c76def4a9d..c63d7e58352b 100644
--- a/arch/s390/oprofile/init.c
+++ b/arch/s390/oprofile/init.c
@@ -18,6 +18,11 @@
 #include <linux/fs.h>
 
 #include "../../../drivers/oprofile/oprof.h"
+
+extern void s390_backtrace(struct pt_regs * const regs, unsigned int depth);
+
+#ifdef CONFIG_64BIT
+
 #include "hwsampler.h"
 
 #define DEFAULT_INTERVAL	4096
@@ -37,8 +42,6 @@ static int hwsampler_running;	/* start_mutex must be held to change */
 
 static struct oprofile_operations timer_ops;
 
-extern void s390_backtrace(struct pt_regs * const regs, unsigned int depth);
-
 static int oprofile_hwsampler_start(void)
 {
 	int retval;
@@ -172,14 +175,22 @@ static void oprofile_hwsampler_exit(void)
 	hwsampler_shutdown();
 }
 
+#endif /* CONFIG_64BIT */
+
 int __init oprofile_arch_init(struct oprofile_operations *ops)
 {
 	ops->backtrace = s390_backtrace;
 
+#ifdef CONFIG_64BIT
 	return oprofile_hwsampler_init(ops);
+#else
+	return -ENODEV;
+#endif
 }
 
 void oprofile_arch_exit(void)
 {
+#ifdef CONFIG_64BIT
 	oprofile_hwsampler_exit();
+#endif
 }
diff --git a/arch/score/Kconfig b/arch/score/Kconfig
index 27b2295f41f3..e73bc781cc14 100644
--- a/arch/score/Kconfig
+++ b/arch/score/Kconfig
@@ -3,6 +3,7 @@ menu "Machine selection"
 config SCORE
        def_bool y
        select HAVE_GENERIC_HARDIRQS
+       select GENERIC_IRQ_SHOW
 
 choice
 	prompt "System type"
diff --git a/arch/score/Makefile b/arch/score/Makefile
index d77dc639d8e3..974aefe86123 100644
--- a/arch/score/Makefile
+++ b/arch/score/Makefile
@@ -40,5 +40,5 @@ archclean:
 define archhelp
 	echo '  vmlinux.bin          - Raw binary boot image'
 	echo
-	echo '  These will be default as apropriate for a configured platform.'
+	echo '  These will be default as appropriate for a configured platform.'
 endef
diff --git a/arch/score/include/asm/irqflags.h b/arch/score/include/asm/irqflags.h
index 5c7563891e28..37c6ac9dd6e8 100644
--- a/arch/score/include/asm/irqflags.h
+++ b/arch/score/include/asm/irqflags.h
@@ -29,7 +29,7 @@ static inline unsigned long arch_local_save_flags(void)
 
 static inline unsigned long arch_local_irq_save(void)
 {
-	unsigned long flags
+	unsigned long flags;
 
 	asm volatile(
 		"	mfcr	r8, cr0		\n"
diff --git a/arch/score/kernel/irq.c b/arch/score/kernel/irq.c
index 47647dde09ca..d4196732c65e 100644
--- a/arch/score/kernel/irq.c
+++ b/arch/score/kernel/irq.c
@@ -52,9 +52,9 @@ asmlinkage void do_IRQ(int irq)
 	irq_exit();
 }
 
-static void score_mask(unsigned int irq_nr)
+static void score_mask(struct irq_data *d)
 {
-	unsigned int irq_source = 63 - irq_nr;
+	unsigned int irq_source = 63 - d->irq;
 
 	if (irq_source < 32)
 		__raw_writel((__raw_readl(SCORE_PIC + INT_MASKL) | \
@@ -64,9 +64,9 @@ static void score_mask(unsigned int irq_nr)
 			(1 << (irq_source - 32))), SCORE_PIC + INT_MASKH);
 }
 
-static void score_unmask(unsigned int irq_nr)
+static void score_unmask(struct irq_data *d)
 {
-	unsigned int irq_source = 63 - irq_nr;
+	unsigned int irq_source = 63 - d->irq;
 
 	if (irq_source < 32)
 		__raw_writel((__raw_readl(SCORE_PIC + INT_MASKL) & \
@@ -78,9 +78,9 @@ static void score_unmask(unsigned int irq_nr)
 
 struct irq_chip score_irq_chip = {
 	.name		= "Score7-level",
-	.mask		= score_mask,
-	.mask_ack	= score_mask,
-	.unmask		= score_unmask,
+	.irq_mask	= score_mask,
+	.irq_mask_ack	= score_mask,
+	.irq_unmask	= score_unmask,
 };
 
 /*
@@ -92,7 +92,7 @@ void __init init_IRQ(void)
 	unsigned long target_addr;
 
 	for (index = 0; index < NR_IRQS; ++index)
-		set_irq_chip_and_handler(index, &score_irq_chip,
+		irq_set_chip_and_handler(index, &score_irq_chip,
 					 handle_level_irq);
 
 	for (target_addr = IRQ_VECTOR_BASE_ADDR;
@@ -109,40 +109,3 @@ void __init init_IRQ(void)
 		: : "r" (EXCEPTION_VECTOR_BASE_ADDR | \
 			VECTOR_ADDRESS_OFFSET_MODE16));
 }
-
-/*
- * Generic, controller-independent functions:
- */
-int show_interrupts(struct seq_file *p, void *v)
-{
-	int i = *(loff_t *)v, cpu;
-	struct irqaction *action;
-	unsigned long flags;
-
-	if (i == 0) {
-		seq_puts(p, "           ");
-		for_each_online_cpu(cpu)
-			seq_printf(p, "CPU%d       ", cpu);
-		seq_putc(p, '\n');
-	}
-
-	if (i < NR_IRQS) {
-		spin_lock_irqsave(&irq_desc[i].lock, flags);
-		action = irq_desc[i].action;
-		if (!action)
-			goto unlock;
-
-		seq_printf(p, "%3d: ", i);
-		seq_printf(p, "%10u ", kstat_irqs(i));
-		seq_printf(p, " %8s", irq_desc[i].chip->name ? : "-");
-		seq_printf(p, "  %s", action->name);
-		for (action = action->next; action; action = action->next)
-			seq_printf(p, ", %s", action->name);
-
-		seq_putc(p, '\n');
-unlock:
-		spin_unlock_irqrestore(&irq_desc[i].lock, flags);
-	}
-
-	return 0;
-}
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 9af3c8d0776b..4b89da248d17 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -23,8 +23,8 @@ config SUPERH
 	select HAVE_SPARSE_IRQ
 	select RTC_LIB
 	select GENERIC_ATOMIC64
-	select GENERIC_HARDIRQS_NO_DEPRECATED
 	select GENERIC_IRQ_SHOW
+	select ARCH_NO_SYSDEV_OPS
 	help
 	  The SuperH is a RISC processor targeted for use in embedded systems
 	  and consumer electronics; it was also used in the Sega Dreamcast
diff --git a/arch/sh/Kconfig.debug b/arch/sh/Kconfig.debug
index 12fec72fec5f..1553d56cf4e0 100644
--- a/arch/sh/Kconfig.debug
+++ b/arch/sh/Kconfig.debug
@@ -82,7 +82,7 @@ config SH_NO_BSS_INIT
 	help
 	  If running in painfully slow environments, such as an RTL
 	  simulation or from remote memory via SHdebug, where the memory
-	  can already be gauranteed to ber zeroed on boot, say Y.
+	  can already be guaranteed to ber zeroed on boot, say Y.
 
 	  For all other cases, say N. If this option seems perplexing, or
 	  you aren't sure, say N.
diff --git a/arch/sh/boards/board-magicpanelr2.c b/arch/sh/boards/board-magicpanelr2.c
index efba450a0518..93f5039099b7 100644
--- a/arch/sh/boards/board-magicpanelr2.c
+++ b/arch/sh/boards/board-magicpanelr2.c
@@ -388,12 +388,12 @@ static void __init init_mpr2_IRQ(void)
 {
 	plat_irq_setup_pins(IRQ_MODE_IRQ); /* install handlers for IRQ0-5 */
 
-	set_irq_type(32, IRQ_TYPE_LEVEL_LOW);    /* IRQ0 CAN1 */
-	set_irq_type(33, IRQ_TYPE_LEVEL_LOW);    /* IRQ1 CAN2 */
-	set_irq_type(34, IRQ_TYPE_LEVEL_LOW);    /* IRQ2 CAN3 */
-	set_irq_type(35, IRQ_TYPE_LEVEL_LOW);    /* IRQ3 SMSC9115 */
-	set_irq_type(36, IRQ_TYPE_EDGE_RISING);  /* IRQ4 touchscreen */
-	set_irq_type(37, IRQ_TYPE_EDGE_FALLING); /* IRQ5 touchscreen */
+	irq_set_irq_type(32, IRQ_TYPE_LEVEL_LOW);    /* IRQ0 CAN1 */
+	irq_set_irq_type(33, IRQ_TYPE_LEVEL_LOW);    /* IRQ1 CAN2 */
+	irq_set_irq_type(34, IRQ_TYPE_LEVEL_LOW);    /* IRQ2 CAN3 */
+	irq_set_irq_type(35, IRQ_TYPE_LEVEL_LOW);    /* IRQ3 SMSC9115 */
+	irq_set_irq_type(36, IRQ_TYPE_EDGE_RISING);  /* IRQ4 touchscreen */
+	irq_set_irq_type(37, IRQ_TYPE_EDGE_FALLING); /* IRQ5 touchscreen */
 
 	intc_set_priority(32, 13);		/* IRQ0 CAN1 */
 	intc_set_priority(33, 13);		/* IRQ0 CAN2 */
diff --git a/arch/sh/boards/board-sh7757lcr.c b/arch/sh/boards/board-sh7757lcr.c
index a9e33569ad38..fa2a208ec6cb 100644
--- a/arch/sh/boards/board-sh7757lcr.c
+++ b/arch/sh/boards/board-sh7757lcr.c
@@ -17,7 +17,7 @@
 #include <linux/io.h>
 #include <linux/mmc/host.h>
 #include <linux/mmc/sh_mmcif.h>
-#include <linux/mfd/sh_mobile_sdhi.h>
+#include <linux/mmc/sh_mobile_sdhi.h>
 #include <cpu/sh7757.h>
 #include <asm/sh_eth.h>
 #include <asm/heartbeat.h>
diff --git a/arch/sh/boards/mach-ap325rxa/setup.c b/arch/sh/boards/mach-ap325rxa/setup.c
index d695e43d3c6b..618bd566cf53 100644
--- a/arch/sh/boards/mach-ap325rxa/setup.c
+++ b/arch/sh/boards/mach-ap325rxa/setup.c
@@ -14,8 +14,8 @@
 #include <linux/device.h>
 #include <linux/interrupt.h>
 #include <linux/platform_device.h>
-#include <linux/mfd/sh_mobile_sdhi.h>
 #include <linux/mmc/host.h>
+#include <linux/mmc/sh_mobile_sdhi.h>
 #include <linux/mtd/physmap.h>
 #include <linux/mtd/sh_flctl.h>
 #include <linux/delay.h>
@@ -439,7 +439,7 @@ static struct resource sdhi0_cn3_resources[] = {
 	[0] = {
 		.name	= "SDHI0",
 		.start	= 0x04ce0000,
-		.end	= 0x04ce01ff,
+		.end	= 0x04ce00ff,
 		.flags	= IORESOURCE_MEM,
 	},
 	[1] = {
@@ -469,7 +469,7 @@ static struct resource sdhi1_cn7_resources[] = {
 	[0] = {
 		.name	= "SDHI1",
 		.start	= 0x04cf0000,
-		.end	= 0x04cf01ff,
+		.end	= 0x04cf00ff,
 		.flags	= IORESOURCE_MEM,
 	},
 	[1] = {
diff --git a/arch/sh/boards/mach-cayman/irq.c b/arch/sh/boards/mach-cayman/irq.c
index d7ac5af9d102..311bcebdbd07 100644
--- a/arch/sh/boards/mach-cayman/irq.c
+++ b/arch/sh/boards/mach-cayman/irq.c
@@ -149,8 +149,8 @@ void init_cayman_irq(void)
 	}
 
 	for (i = 0; i < NR_EXT_IRQS; i++) {
-		set_irq_chip_and_handler(START_EXT_IRQS + i, &cayman_irq_type,
-					 handle_level_irq);
+		irq_set_chip_and_handler(START_EXT_IRQS + i,
+					 &cayman_irq_type, handle_level_irq);
 	}
 
 	/* Setup the SMSC interrupt */
diff --git a/arch/sh/boards/mach-dreamcast/irq.c b/arch/sh/boards/mach-dreamcast/irq.c
index 72e7ac9549da..f63d323f411f 100644
--- a/arch/sh/boards/mach-dreamcast/irq.c
+++ b/arch/sh/boards/mach-dreamcast/irq.c
@@ -51,7 +51,7 @@
  */
 #define LEVEL(event) (((event) - HW_EVENT_IRQ_BASE) / 32)
 
-/* Return the hardware event's bit positon within the EMR/ESR */
+/* Return the hardware event's bit position within the EMR/ESR */
 #define EVENT_BIT(event) (((event) - HW_EVENT_IRQ_BASE) & 31)
 
 /*
@@ -161,7 +161,6 @@ void systemasic_irq_init(void)
 			return;
 		}
 
-		set_irq_chip_and_handler(i, &systemasic_int,
-					 handle_level_irq);
+		irq_set_chip_and_handler(i, &systemasic_int, handle_level_irq);
 	}
 }
diff --git a/arch/sh/boards/mach-ecovec24/setup.c b/arch/sh/boards/mach-ecovec24/setup.c
index c68e2863bf86..86a0d565aded 100644
--- a/arch/sh/boards/mach-ecovec24/setup.c
+++ b/arch/sh/boards/mach-ecovec24/setup.c
@@ -11,9 +11,9 @@
 #include <linux/init.h>
 #include <linux/device.h>
 #include <linux/platform_device.h>
-#include <linux/mfd/sh_mobile_sdhi.h>
 #include <linux/mmc/host.h>
 #include <linux/mmc/sh_mmcif.h>
+#include <linux/mmc/sh_mobile_sdhi.h>
 #include <linux/mtd/physmap.h>
 #include <linux/gpio.h>
 #include <linux/interrupt.h>
@@ -482,7 +482,7 @@ static struct i2c_board_info ts_i2c_clients = {
 	.irq		= IRQ0,
 };
 
-#ifdef CONFIG_MFD_SH_MOBILE_SDHI
+#if defined(CONFIG_MMC_TMIO) || defined(CONFIG_MMC_TMIO_MODULE)
 /* SDHI0 */
 static void sdhi0_set_pwr(struct platform_device *pdev, int state)
 {
@@ -500,7 +500,7 @@ static struct resource sdhi0_resources[] = {
 	[0] = {
 		.name	= "SDHI0",
 		.start  = 0x04ce0000,
-		.end    = 0x04ce01ff,
+		.end    = 0x04ce00ff,
 		.flags  = IORESOURCE_MEM,
 	},
 	[1] = {
@@ -540,7 +540,7 @@ static struct resource sdhi1_resources[] = {
 	[0] = {
 		.name	= "SDHI1",
 		.start  = 0x04cf0000,
-		.end    = 0x04cf01ff,
+		.end    = 0x04cf00ff,
 		.flags  = IORESOURCE_MEM,
 	},
 	[1] = {
@@ -898,7 +898,7 @@ static struct platform_device *ecovec_devices[] __initdata = {
 	&ceu0_device,
 	&ceu1_device,
 	&keysc_device,
-#ifdef CONFIG_MFD_SH_MOBILE_SDHI
+#if defined(CONFIG_MMC_TMIO) || defined(CONFIG_MMC_TMIO_MODULE)
 	&sdhi0_device,
 #if !defined(CONFIG_MMC_SH_MMCIF)
 	&sdhi1_device,
@@ -954,7 +954,7 @@ static void __init sh_eth_init(struct sh_eth_plat_data *pd)
 		return;
 	}
 
-	/* read MAC address frome EEPROM */
+	/* read MAC address from EEPROM */
 	for (i = 0; i < sizeof(pd->mac_addr); i++) {
 		pd->mac_addr[i] = mac_read(a, 0x10 + i);
 		msleep(10);
@@ -1120,7 +1120,7 @@ static int __init arch_setup(void)
 
 		/* enable TouchScreen */
 		i2c_register_board_info(0, &ts_i2c_clients, 1);
-		set_irq_type(IRQ0, IRQ_TYPE_LEVEL_LOW);
+		irq_set_irq_type(IRQ0, IRQ_TYPE_LEVEL_LOW);
 	}
 
 	/* enable CEU0 */
@@ -1180,7 +1180,7 @@ static int __init arch_setup(void)
 	gpio_direction_input(GPIO_PTR5);
 	gpio_direction_input(GPIO_PTR6);
 
-#ifdef CONFIG_MFD_SH_MOBILE_SDHI
+#if defined(CONFIG_MMC_TMIO) || defined(CONFIG_MMC_TMIO_MODULE)
 	/* enable SDHI0 on CN11 (needs DS2.4 set to ON) */
 	gpio_request(GPIO_FN_SDHI0CD,  NULL);
 	gpio_request(GPIO_FN_SDHI0WP,  NULL);
diff --git a/arch/sh/boards/mach-kfr2r09/setup.c b/arch/sh/boards/mach-kfr2r09/setup.c
index 7504daaa85da..8b4abbbd1477 100644
--- a/arch/sh/boards/mach-kfr2r09/setup.c
+++ b/arch/sh/boards/mach-kfr2r09/setup.c
@@ -10,8 +10,8 @@
 #include <linux/init.h>
 #include <linux/platform_device.h>
 #include <linux/interrupt.h>
-#include <linux/mfd/sh_mobile_sdhi.h>
 #include <linux/mmc/host.h>
+#include <linux/mmc/sh_mobile_sdhi.h>
 #include <linux/mfd/tmio.h>
 #include <linux/mtd/physmap.h>
 #include <linux/mtd/onenand.h>
@@ -354,7 +354,7 @@ static struct resource kfr2r09_sh_sdhi0_resources[] = {
 	[0] = {
 		.name	= "SDHI0",
 		.start  = 0x04ce0000,
-		.end    = 0x04ce01ff,
+		.end    = 0x04ce00ff,
 		.flags  = IORESOURCE_MEM,
 	},
 	[1] = {
diff --git a/arch/sh/boards/mach-landisk/setup.c b/arch/sh/boards/mach-landisk/setup.c
index 94186cf079b6..f1147caebacf 100644
--- a/arch/sh/boards/mach-landisk/setup.c
+++ b/arch/sh/boards/mach-landisk/setup.c
@@ -23,7 +23,7 @@
 
 static void landisk_power_off(void)
 {
-        __raw_writeb(0x01, PA_SHUTDOWN);
+	__raw_writeb(0x01, PA_SHUTDOWN);
 }
 
 static struct resource cf_ide_resources[3];
@@ -85,7 +85,7 @@ device_initcall(landisk_devices_setup);
 
 static void __init landisk_setup(char **cmdline_p)
 {
-        /* LED ON */
+	/* LED ON */
 	__raw_writeb(__raw_readb(PA_LED) | 0x03, PA_LED);
 
 	printk(KERN_INFO "I-O DATA DEVICE, INC. \"LANDISK Series\" support.\n");
@@ -97,7 +97,6 @@ static void __init landisk_setup(char **cmdline_p)
  */
 static struct sh_machine_vector mv_landisk __initmv = {
 	.mv_name = "LANDISK",
-	.mv_nr_irqs = 72,
 	.mv_setup = landisk_setup,
 	.mv_init_irq = init_landisk_IRQ,
 };
diff --git a/arch/sh/boards/mach-microdev/irq.c b/arch/sh/boards/mach-microdev/irq.c
index c35001fd9032..4fb00369f0e2 100644
--- a/arch/sh/boards/mach-microdev/irq.c
+++ b/arch/sh/boards/mach-microdev/irq.c
@@ -117,7 +117,7 @@ static struct irq_chip microdev_irq_type = {
 static void __init make_microdev_irq(unsigned int irq)
 {
 	disable_irq_nosync(irq);
-	set_irq_chip_and_handler(irq, &microdev_irq_type, handle_level_irq);
+	irq_set_chip_and_handler(irq, &microdev_irq_type, handle_level_irq);
 	disable_microdev_irq(irq_get_irq_data(irq));
 }
 
diff --git a/arch/sh/boards/mach-migor/setup.c b/arch/sh/boards/mach-migor/setup.c
index 03a7ffe729d5..184fde169132 100644
--- a/arch/sh/boards/mach-migor/setup.c
+++ b/arch/sh/boards/mach-migor/setup.c
@@ -12,8 +12,8 @@
 #include <linux/interrupt.h>
 #include <linux/input.h>
 #include <linux/input/sh_keysc.h>
-#include <linux/mfd/sh_mobile_sdhi.h>
 #include <linux/mmc/host.h>
+#include <linux/mmc/sh_mobile_sdhi.h>
 #include <linux/mtd/physmap.h>
 #include <linux/mtd/nand.h>
 #include <linux/i2c.h>
@@ -399,7 +399,7 @@ static struct resource sdhi_cn9_resources[] = {
 	[0] = {
 		.name	= "SDHI",
 		.start	= 0x04ce0000,
-		.end	= 0x04ce01ff,
+		.end	= 0x04ce00ff,
 		.flags	= IORESOURCE_MEM,
 	},
 	[1] = {
diff --git a/arch/sh/boards/mach-se/7206/irq.c b/arch/sh/boards/mach-se/7206/irq.c
index 9070d7e60704..0db058e709e9 100644
--- a/arch/sh/boards/mach-se/7206/irq.c
+++ b/arch/sh/boards/mach-se/7206/irq.c
@@ -92,9 +92,8 @@ static void eoi_se7206_irq(struct irq_data *data)
 {
 	unsigned short sts0,sts1;
 	unsigned int irq = data->irq;
-	struct irq_desc *desc = irq_to_desc(irq);
 
-	if (!(desc->status & (IRQ_DISABLED|IRQ_INPROGRESS)))
+	if (!irqd_irq_disabled(data) && !irqd_irq_inprogress(data))
 		enable_se7206_irq(data);
 	/* FPGA isr clear */
 	sts0 = __raw_readw(INTSTS0);
@@ -126,7 +125,7 @@ static struct irq_chip se7206_irq_chip __read_mostly = {
 static void make_se7206_irq(unsigned int irq)
 {
 	disable_irq_nosync(irq);
-	set_irq_chip_and_handler_name(irq, &se7206_irq_chip,
+	irq_set_chip_and_handler_name(irq, &se7206_irq_chip,
 				      handle_level_irq, "level");
 	disable_se7206_irq(irq_get_irq_data(irq));
 }
diff --git a/arch/sh/boards/mach-se/7343/irq.c b/arch/sh/boards/mach-se/7343/irq.c
index 76255a19417f..fd45ffc48340 100644
--- a/arch/sh/boards/mach-se/7343/irq.c
+++ b/arch/sh/boards/mach-se/7343/irq.c
@@ -67,19 +67,20 @@ void __init init_7343se_IRQ(void)
 			return;
 		se7343_fpga_irq[i] = irq;
 
-		set_irq_chip_and_handler_name(se7343_fpga_irq[i],
+		irq_set_chip_and_handler_name(se7343_fpga_irq[i],
 					      &se7343_irq_chip,
-					      handle_level_irq, "level");
+					      handle_level_irq,
+					      "level");
 
-		set_irq_chip_data(se7343_fpga_irq[i], (void *)i);
+		irq_set_chip_data(se7343_fpga_irq[i], (void *)i);
 	}
 
-	set_irq_chained_handler(IRQ0_IRQ, se7343_irq_demux);
-	set_irq_type(IRQ0_IRQ, IRQ_TYPE_LEVEL_LOW);
-	set_irq_chained_handler(IRQ1_IRQ, se7343_irq_demux);
-	set_irq_type(IRQ1_IRQ, IRQ_TYPE_LEVEL_LOW);
-	set_irq_chained_handler(IRQ4_IRQ, se7343_irq_demux);
-	set_irq_type(IRQ4_IRQ, IRQ_TYPE_LEVEL_LOW);
-	set_irq_chained_handler(IRQ5_IRQ, se7343_irq_demux);
-	set_irq_type(IRQ5_IRQ, IRQ_TYPE_LEVEL_LOW);
+	irq_set_chained_handler(IRQ0_IRQ, se7343_irq_demux);
+	irq_set_irq_type(IRQ0_IRQ, IRQ_TYPE_LEVEL_LOW);
+	irq_set_chained_handler(IRQ1_IRQ, se7343_irq_demux);
+	irq_set_irq_type(IRQ1_IRQ, IRQ_TYPE_LEVEL_LOW);
+	irq_set_chained_handler(IRQ4_IRQ, se7343_irq_demux);
+	irq_set_irq_type(IRQ4_IRQ, IRQ_TYPE_LEVEL_LOW);
+	irq_set_chained_handler(IRQ5_IRQ, se7343_irq_demux);
+	irq_set_irq_type(IRQ5_IRQ, IRQ_TYPE_LEVEL_LOW);
 }
diff --git a/arch/sh/boards/mach-se/7722/irq.c b/arch/sh/boards/mach-se/7722/irq.c
index c013f95628ed..aac92f21ebd2 100644
--- a/arch/sh/boards/mach-se/7722/irq.c
+++ b/arch/sh/boards/mach-se/7722/irq.c
@@ -67,16 +67,17 @@ void __init init_se7722_IRQ(void)
 			return;
 		se7722_fpga_irq[i] = irq;
 
-		set_irq_chip_and_handler_name(se7722_fpga_irq[i],
+		irq_set_chip_and_handler_name(se7722_fpga_irq[i],
 					      &se7722_irq_chip,
-					      handle_level_irq, "level");
+					      handle_level_irq,
+					      "level");
 
-		set_irq_chip_data(se7722_fpga_irq[i], (void *)i);
+		irq_set_chip_data(se7722_fpga_irq[i], (void *)i);
 	}
 
-	set_irq_chained_handler(IRQ0_IRQ, se7722_irq_demux);
-	set_irq_type(IRQ0_IRQ, IRQ_TYPE_LEVEL_LOW);
+	irq_set_chained_handler(IRQ0_IRQ, se7722_irq_demux);
+	irq_set_irq_type(IRQ0_IRQ, IRQ_TYPE_LEVEL_LOW);
 
-	set_irq_chained_handler(IRQ1_IRQ, se7722_irq_demux);
-	set_irq_type(IRQ1_IRQ, IRQ_TYPE_LEVEL_LOW);
+	irq_set_chained_handler(IRQ1_IRQ, se7722_irq_demux);
+	irq_set_irq_type(IRQ1_IRQ, IRQ_TYPE_LEVEL_LOW);
 }
diff --git a/arch/sh/boards/mach-se/7724/irq.c b/arch/sh/boards/mach-se/7724/irq.c
index 5bd87c22b65b..c6342ce7768d 100644
--- a/arch/sh/boards/mach-se/7724/irq.c
+++ b/arch/sh/boards/mach-se/7724/irq.c
@@ -140,17 +140,16 @@ void __init init_se7724_IRQ(void)
 			return;
 		}
 
-		set_irq_chip_and_handler_name(irq,
-					      &se7724_irq_chip,
+		irq_set_chip_and_handler_name(irq, &se7724_irq_chip,
 					      handle_level_irq, "level");
 	}
 
-	set_irq_chained_handler(IRQ0_IRQ, se7724_irq_demux);
-	set_irq_type(IRQ0_IRQ, IRQ_TYPE_LEVEL_LOW);
+	irq_set_chained_handler(IRQ0_IRQ, se7724_irq_demux);
+	irq_set_irq_type(IRQ0_IRQ, IRQ_TYPE_LEVEL_LOW);
 
-	set_irq_chained_handler(IRQ1_IRQ, se7724_irq_demux);
-	set_irq_type(IRQ1_IRQ, IRQ_TYPE_LEVEL_LOW);
+	irq_set_chained_handler(IRQ1_IRQ, se7724_irq_demux);
+	irq_set_irq_type(IRQ1_IRQ, IRQ_TYPE_LEVEL_LOW);
 
-	set_irq_chained_handler(IRQ2_IRQ, se7724_irq_demux);
-	set_irq_type(IRQ2_IRQ, IRQ_TYPE_LEVEL_LOW);
+	irq_set_chained_handler(IRQ2_IRQ, se7724_irq_demux);
+	irq_set_irq_type(IRQ2_IRQ, IRQ_TYPE_LEVEL_LOW);
 }
diff --git a/arch/sh/boards/mach-se/7724/setup.c b/arch/sh/boards/mach-se/7724/setup.c
index c8bcf6a19b55..12357671023e 100644
--- a/arch/sh/boards/mach-se/7724/setup.c
+++ b/arch/sh/boards/mach-se/7724/setup.c
@@ -14,8 +14,8 @@
 #include <linux/device.h>
 #include <linux/interrupt.h>
 #include <linux/platform_device.h>
-#include <linux/mfd/sh_mobile_sdhi.h>
 #include <linux/mmc/host.h>
+#include <linux/mmc/sh_mobile_sdhi.h>
 #include <linux/mtd/physmap.h>
 #include <linux/delay.h>
 #include <linux/smc91x.h>
@@ -456,7 +456,7 @@ static struct resource sdhi0_cn7_resources[] = {
 	[0] = {
 		.name	= "SDHI0",
 		.start  = 0x04ce0000,
-		.end    = 0x04ce01ff,
+		.end    = 0x04ce00ff,
 		.flags  = IORESOURCE_MEM,
 	},
 	[1] = {
@@ -488,7 +488,7 @@ static struct resource sdhi1_cn8_resources[] = {
 	[0] = {
 		.name	= "SDHI1",
 		.start  = 0x04cf0000,
-		.end    = 0x04cf01ff,
+		.end    = 0x04cf00ff,
 		.flags  = IORESOURCE_MEM,
 	},
 	[1] = {
diff --git a/arch/sh/boards/mach-x3proto/gpio.c b/arch/sh/boards/mach-x3proto/gpio.c
index 239e74066253..f33b2b57019c 100644
--- a/arch/sh/boards/mach-x3proto/gpio.c
+++ b/arch/sh/boards/mach-x3proto/gpio.c
@@ -102,8 +102,8 @@ int __init x3proto_gpio_setup(void)
 
 		spin_lock_irqsave(&x3proto_gpio_lock, flags);
 		x3proto_gpio_irq_map[i] = irq;
-		set_irq_chip_and_handler_name(irq, &dummy_irq_chip,
-					handle_simple_irq, "gpio");
+		irq_set_chip_and_handler_name(irq, &dummy_irq_chip,
+					      handle_simple_irq, "gpio");
 		spin_unlock_irqrestore(&x3proto_gpio_lock, flags);
 	}
 
@@ -113,8 +113,8 @@ int __init x3proto_gpio_setup(void)
 		x3proto_gpio_chip.base + x3proto_gpio_chip.ngpio,
 		ilsel);
 
-	set_irq_chained_handler(ilsel, x3proto_gpio_irq_handler);
-	set_irq_wake(ilsel, 1);
+	irq_set_chained_handler(ilsel, x3proto_gpio_irq_handler);
+	irq_set_irq_wake(ilsel, 1);
 
 	return 0;
 
diff --git a/arch/sh/cchips/hd6446x/hd64461.c b/arch/sh/cchips/hd6446x/hd64461.c
index 177a10b25cad..eb4ea4d44d59 100644
--- a/arch/sh/cchips/hd6446x/hd64461.c
+++ b/arch/sh/cchips/hd6446x/hd64461.c
@@ -107,12 +107,12 @@ int __init setup_hd64461(void)
 			return -EINVAL;
 		}
 
-		set_irq_chip_and_handler(i, &hd64461_irq_chip,
+		irq_set_chip_and_handler(i, &hd64461_irq_chip,
 					 handle_level_irq);
 	}
 
-	set_irq_chained_handler(CONFIG_HD64461_IRQ, hd64461_irq_demux);
-	set_irq_type(CONFIG_HD64461_IRQ, IRQ_TYPE_LEVEL_LOW);
+	irq_set_chained_handler(CONFIG_HD64461_IRQ, hd64461_irq_demux);
+	irq_set_irq_type(CONFIG_HD64461_IRQ, IRQ_TYPE_LEVEL_LOW);
 
 #ifdef CONFIG_HD64461_ENABLER
 	printk(KERN_INFO "HD64461: enabling PCMCIA devices\n");
diff --git a/arch/sh/drivers/pci/pci-sh7751.h b/arch/sh/drivers/pci/pci-sh7751.h
index 4983a4d20355..5ede38c330d3 100644
--- a/arch/sh/drivers/pci/pci-sh7751.h
+++ b/arch/sh/drivers/pci/pci-sh7751.h
@@ -61,7 +61,7 @@
   #define SH7751_PCICONF3_BIST7      0x80000000  /* Bist Supported */
   #define SH7751_PCICONF3_BIST6      0x40000000  /* Bist Executing */
   #define SH7751_PCICONF3_BIST3_0    0x0F000000  /* Bist Passed */
-  #define SH7751_PCICONF3_HD7        0x00800000  /* Single Funtion device */
+  #define SH7751_PCICONF3_HD7        0x00800000  /* Single Function device */
   #define SH7751_PCICONF3_HD6_0      0x007F0000  /* Configuration Layout */
   #define SH7751_PCICONF3_LAT        0x0000FF00  /* Latency Timer */
   #define SH7751_PCICONF3_CLS        0x000000FF  /* Cache Line Size */
diff --git a/arch/sh/drivers/pci/pci.c b/arch/sh/drivers/pci/pci.c
index a09c77dd09db..194231cb5a70 100644
--- a/arch/sh/drivers/pci/pci.c
+++ b/arch/sh/drivers/pci/pci.c
@@ -84,7 +84,7 @@ int __devinit register_pci_controller(struct pci_channel *hose)
 	hose_tail = &hose->next;
 
 	/*
-	 * Do not panic here but later - this might hapen before console init.
+	 * Do not panic here but later - this might happen before console init.
 	 */
 	if (!hose->io_map_base) {
 		printk(KERN_WARNING
diff --git a/arch/sh/include/asm/page.h b/arch/sh/include/asm/page.h
index c4e0b3d472b9..822d6084195b 100644
--- a/arch/sh/include/asm/page.h
+++ b/arch/sh/include/asm/page.h
@@ -186,7 +186,7 @@ typedef struct page *pgtable_t;
 /*
  * While BYTES_PER_WORD == 4 on the current sh64 ABI, GCC will still
  * happily generate {ld/st}.q pairs, requiring us to have 8-byte
- * alignment to avoid traps. The kmalloc alignment is gauranteed by
+ * alignment to avoid traps. The kmalloc alignment is guaranteed by
  * virtue of L1_CACHE_BYTES, requiring this to only be special cased
  * for slab caches.
  */
diff --git a/arch/sh/include/asm/pgtable_32.h b/arch/sh/include/asm/pgtable_32.h
index b799fe71114c..0bce3d81569e 100644
--- a/arch/sh/include/asm/pgtable_32.h
+++ b/arch/sh/include/asm/pgtable_32.h
@@ -167,7 +167,7 @@ static inline unsigned long copy_ptea_attributes(unsigned long x)
 #endif
 
 /*
- * Mask of bits that are to be preserved accross pgprot changes.
+ * Mask of bits that are to be preserved across pgprot changes.
  */
 #define _PAGE_CHG_MASK \
 	(PTE_MASK | _PAGE_ACCESSED | _PAGE_CACHABLE | \
diff --git a/arch/sh/include/asm/unaligned-sh4a.h b/arch/sh/include/asm/unaligned-sh4a.h
index c48a9c3420da..95adc500cabc 100644
--- a/arch/sh/include/asm/unaligned-sh4a.h
+++ b/arch/sh/include/asm/unaligned-sh4a.h
@@ -9,7 +9,7 @@
  * struct.
  *
  * The same note as with the movli.l/movco.l pair applies here, as long
- * as the load is gauranteed to be inlined, nothing else will hook in to
+ * as the load is guaranteed to be inlined, nothing else will hook in to
  * r0 and we get the return value for free.
  *
  * NOTE: Due to the fact we require r0 encoding, care should be taken to
diff --git a/arch/sh/include/mach-common/mach/highlander.h b/arch/sh/include/mach-common/mach/highlander.h
index 5d9d4d5154be..6ce944e33e59 100644
--- a/arch/sh/include/mach-common/mach/highlander.h
+++ b/arch/sh/include/mach-common/mach/highlander.h
@@ -24,7 +24,7 @@
 #define PA_OBLED        (PA_BCR+0x001c) /* On Board LED control */
 #define PA_OBSW         (PA_BCR+0x001e) /* On Board Switch control */
 #define PA_AUDIOSEL     (PA_BCR+0x0020) /* Sound Interface Select control */
-#define PA_EXTPLR       (PA_BCR+0x001e) /* Extention Pin Polarity control */
+#define PA_EXTPLR       (PA_BCR+0x001e) /* Extension Pin Polarity control */
 #define PA_TPCTL        (PA_BCR+0x0100) /* Touch Panel Access control */
 #define PA_TPDCKCTL     (PA_BCR+0x0102) /* Touch Panel Access data control */
 #define PA_TPCTLCLR     (PA_BCR+0x0104) /* Touch Panel Access control */
@@ -89,7 +89,7 @@
 #define PA_OBLED	(PA_BCR+0x0018)	/* On Board LED control */
 #define PA_OBSW		(PA_BCR+0x001a)	/* On Board Switch control */
 #define PA_AUDIOSEL	(PA_BCR+0x001c)	/* Sound Interface Select control */
-#define PA_EXTPLR	(PA_BCR+0x001e)	/* Extention Pin Polarity control */
+#define PA_EXTPLR	(PA_BCR+0x001e)	/* Extension Pin Polarity control */
 #define PA_TPCTL	(PA_BCR+0x0100)	/* Touch Panel Access control */
 #define PA_TPDCKCTL	(PA_BCR+0x0102)	/* Touch Panel Access data control */
 #define PA_TPCTLCLR	(PA_BCR+0x0104)	/* Touch Panel Access control */
diff --git a/arch/sh/include/mach-common/mach/r2d.h b/arch/sh/include/mach-common/mach/r2d.h
index 0a800157b826..e04f75eaa153 100644
--- a/arch/sh/include/mach-common/mach/r2d.h
+++ b/arch/sh/include/mach-common/mach/r2d.h
@@ -18,18 +18,18 @@
 #define PA_DISPCTL	0xa4000008	/* Display Timing control */
 #define PA_SDMPOW	0xa400000a	/* SD Power control */
 #define PA_RTCCE	0xa400000c	/* RTC(9701) Enable control */
-#define PA_PCICD	0xa400000e	/* PCI Extention detect control */
+#define PA_PCICD	0xa400000e	/* PCI Extension detect control */
 #define PA_VOYAGERRTS	0xa4000020	/* VOYAGER Reset control */
 
 #define PA_R2D1_AXRST		0xa4000022	/* AX_LAN Reset control */
 #define PA_R2D1_CFRST		0xa4000024	/* CF Reset control */
 #define PA_R2D1_ADMRTS		0xa4000026	/* SD Reset control */
-#define PA_R2D1_EXTRST		0xa4000028	/* Extention Reset control */
+#define PA_R2D1_EXTRST		0xa4000028	/* Extension Reset control */
 #define PA_R2D1_CFCDINTCLR	0xa400002a	/* CF Insert Interrupt clear */
 
 #define PA_R2DPLUS_CFRST	0xa4000022	/* CF Reset control */
 #define PA_R2DPLUS_ADMRTS	0xa4000024	/* SD Reset control */
-#define PA_R2DPLUS_EXTRST	0xa4000026	/* Extention Reset control */
+#define PA_R2DPLUS_EXTRST	0xa4000026	/* Extension Reset control */
 #define PA_R2DPLUS_CFCDINTCLR	0xa4000028	/* CF Insert Interrupt clear */
 #define PA_R2DPLUS_KEYCTLCLR	0xa400002a	/* Key Interrupt clear */
 
diff --git a/arch/sh/kernel/cpu/clock-cpg.c b/arch/sh/kernel/cpu/clock-cpg.c
index dd0e0f211359..8f63a264a842 100644
--- a/arch/sh/kernel/cpu/clock-cpg.c
+++ b/arch/sh/kernel/cpu/clock-cpg.c
@@ -67,7 +67,7 @@ int __init __deprecated cpg_clk_init(void)
 }
 
 /*
- * Placeholder for compatability, until the lazy CPUs do this
+ * Placeholder for compatibility, until the lazy CPUs do this
  * on their own.
  */
 int __init __weak arch_clk_init(void)
diff --git a/arch/sh/kernel/cpu/irq/imask.c b/arch/sh/kernel/cpu/irq/imask.c
index 32c825c9488e..39b6a24c159d 100644
--- a/arch/sh/kernel/cpu/irq/imask.c
+++ b/arch/sh/kernel/cpu/irq/imask.c
@@ -80,6 +80,6 @@ static struct irq_chip imask_irq_chip = {
 
 void make_imask_irq(unsigned int irq)
 {
-	set_irq_chip_and_handler_name(irq, &imask_irq_chip,
-				      handle_level_irq, "level");
+	irq_set_chip_and_handler_name(irq, &imask_irq_chip, handle_level_irq,
+				      "level");
 }
diff --git a/arch/sh/kernel/cpu/irq/intc-sh5.c b/arch/sh/kernel/cpu/irq/intc-sh5.c
index 5af48f8357e5..9e056a3a0c73 100644
--- a/arch/sh/kernel/cpu/irq/intc-sh5.c
+++ b/arch/sh/kernel/cpu/irq/intc-sh5.c
@@ -135,7 +135,7 @@ void __init plat_irq_setup(void)
 
 	/* Set default: per-line enable/disable, priority driven ack/eoi */
 	for (i = 0; i < NR_INTC_IRQS; i++)
-		set_irq_chip_and_handler(i, &intc_irq_type, handle_level_irq);
+		irq_set_chip_and_handler(i, &intc_irq_type, handle_level_irq);
 
 
 	/* Disable all interrupts and set all priorities to 0 to avoid trouble */
diff --git a/arch/sh/kernel/cpu/irq/ipr.c b/arch/sh/kernel/cpu/irq/ipr.c
index 7516c35ee514..5de6dff5c21b 100644
--- a/arch/sh/kernel/cpu/irq/ipr.c
+++ b/arch/sh/kernel/cpu/irq/ipr.c
@@ -74,9 +74,9 @@ void register_ipr_controller(struct ipr_desc *desc)
 		}
 
 		disable_irq_nosync(p->irq);
-		set_irq_chip_and_handler_name(p->irq, &desc->chip,
-				      handle_level_irq, "level");
-		set_irq_chip_data(p->irq, p);
+		irq_set_chip_and_handler_name(p->irq, &desc->chip,
+					      handle_level_irq, "level");
+		irq_set_chip_data(p->irq, p);
 		disable_ipr_irq(irq_get_irq_data(p->irq));
 	}
 }
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7786.c b/arch/sh/kernel/cpu/sh4a/setup-sh7786.c
index 1656b8c91faf..beba32beb6d9 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7786.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7786.c
@@ -648,7 +648,7 @@ static void __init sh7786_usb_setup(void)
 	 * The following settings are necessary
 	 * for using the USB modules.
 	 *
-	 * see "USB Inital Settings" for detail
+	 * see "USB Initial Settings" for detail
 	 */
 	__raw_writel(USBINITVAL1, USBINITREG1);
 	__raw_writel(USBINITVAL2, USBINITREG2);
diff --git a/arch/sh/kernel/irq.c b/arch/sh/kernel/irq.c
index 64ea0b165399..91971103b62b 100644
--- a/arch/sh/kernel/irq.c
+++ b/arch/sh/kernel/irq.c
@@ -183,7 +183,7 @@ asmlinkage void do_softirq(void)
 		);
 
 		/*
-		 * Shouldnt happen, we returned above if in_interrupt():
+		 * Shouldn't happen, we returned above if in_interrupt():
 		 */
 		WARN_ON_ONCE(softirq_count());
 	}
diff --git a/arch/sh/kernel/setup.c b/arch/sh/kernel/setup.c
index 4f267160c515..58bff45d1156 100644
--- a/arch/sh/kernel/setup.c
+++ b/arch/sh/kernel/setup.c
@@ -150,7 +150,7 @@ void __init check_for_initrd(void)
 	}
 
 	/*
-	 * If we got this far inspite of the boot loader's best efforts
+	 * If we got this far in spite of the boot loader's best efforts
 	 * to the contrary, assume we actually have a valid initrd and
 	 * fix up the root dev.
 	 */
diff --git a/arch/sh/lib64/copy_user_memcpy.S b/arch/sh/lib64/copy_user_memcpy.S
index 2a62816d2ddd..49aeabeba2c2 100644
--- a/arch/sh/lib64/copy_user_memcpy.S
+++ b/arch/sh/lib64/copy_user_memcpy.S
@@ -27,7 +27,7 @@
 ! 2.: When there are two or three bytes in the last word of an 11-or-more
 !     bytes memory chunk to b copied, the rest of the word can be read
 !     without side effects.
-!     This could be easily changed by increasing the minumum size of
+!     This could be easily changed by increasing the minimum size of
 !     a fast memcpy and the amount subtracted from r7 before L_2l_loop be 2,
 !     however, this would cost a few extra cyles on average.
 !     For SHmedia, the assumption is that any quadword can be read in its
diff --git a/arch/sh/lib64/memcpy.S b/arch/sh/lib64/memcpy.S
index dd300c372ce1..5d682e0ee24f 100644
--- a/arch/sh/lib64/memcpy.S
+++ b/arch/sh/lib64/memcpy.S
@@ -29,7 +29,7 @@
 ! 2.: When there are two or three bytes in the last word of an 11-or-more
 !     bytes memory chunk to b copied, the rest of the word can be read
 !     without side effects.
-!     This could be easily changed by increasing the minumum size of
+!     This could be easily changed by increasing the minimum size of
 !     a fast memcpy and the amount subtracted from r7 before L_2l_loop be 2,
 !     however, this would cost a few extra cyles on average.
 !     For SHmedia, the assumption is that any quadword can be read in its
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index f766e6bf370e..e560d102215a 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -51,7 +51,8 @@ config SPARC64
 	select HAVE_PERF_EVENTS
 	select PERF_USE_VMALLOC
 	select HAVE_GENERIC_HARDIRQS
-	select GENERIC_HARDIRQS_NO_DEPRECATED
+	select GENERIC_IRQ_SHOW
+	select IRQ_PREFLOW_FASTEOI
 
 config ARCH_DEFCONFIG
 	string
diff --git a/arch/sparc/include/asm/hypervisor.h b/arch/sparc/include/asm/hypervisor.h
index bafe5a631b6d..75686409be24 100644
--- a/arch/sparc/include/asm/hypervisor.h
+++ b/arch/sparc/include/asm/hypervisor.h
@@ -654,7 +654,7 @@ extern unsigned long sun4v_mmu_tsb_ctx0(unsigned long num_descriptions,
  * ARG3:	mmu context
  * ARG4:	flags (HV_MMU_{IMMU,DMMU})
  * RET0:	status
- * ERRORS:	EINVAL			Invalid virutal address, context, or
+ * ERRORS:	EINVAL			Invalid virtual address, context, or
  *					flags value
  *		ENOTSUPPORTED		ARG0 or ARG1 is non-zero
  *
@@ -721,7 +721,7 @@ extern void sun4v_mmu_demap_all(void);
  * ARG2:	TTE
  * ARG3:	flags (HV_MMU_{IMMU,DMMU})
  * RET0:	status
- * ERRORS:	EINVAL			Invalid virutal address or flags value
+ * ERRORS:	EINVAL			Invalid virtual address or flags value
  *		EBADPGSZ		Invalid page size value
  *		ENORADDR		Invalid real address in TTE
  *		ETOOMANY		Too many mappings (max of 8 reached)
@@ -800,7 +800,7 @@ extern unsigned long sun4v_mmu_map_perm_addr(unsigned long vaddr,
  * ARG1:	reserved, must be zero
  * ARG2:	flags (HV_MMU_{IMMU,DMMU})
  * RET0:	status
- * ERRORS:	EINVAL			Invalid virutal address or flags value
+ * ERRORS:	EINVAL			Invalid virtual address or flags value
  *		ENOMAP			Specified mapping was not found
  *
  * Demaps any permanent page mapping (established via
@@ -1205,7 +1205,7 @@ struct hv_trap_trace_control {
  * structure contents.  Attempts to do so will result in undefined
  * behavior for the guest.
  *
- * Each trap trace buffer entry is layed out as follows:
+ * Each trap trace buffer entry is laid out as follows:
  */
 #ifndef __ASSEMBLY__
 struct hv_trap_trace_entry {
@@ -1300,7 +1300,7 @@ struct hv_trap_trace_entry {
  * state in RET1.  Future systems may define various flags for the
  * enable argument (ARG0), for the moment a guest should pass
  * "(uint64_t) -1" to enable, and "(uint64_t) 0" to disable all
- * tracing - which will ensure future compatability.
+ * tracing - which will ensure future compatibility.
  */
 #define HV_FAST_TTRACE_ENABLE		0x92
 
@@ -1880,7 +1880,7 @@ extern unsigned long sun4v_vintr_set_target(unsigned long dev_handle,
  * pci_device, at pci_config_offset from the beginning of the device's
  * configuration space.  If there was no error, RET1 is set to zero and
  * RET2 is set to the data read.  Insignificant bits in RET2 are not
- * guarenteed to have any specific value and therefore must be ignored.
+ * guaranteed to have any specific value and therefore must be ignored.
  *
  * The data returned in RET2 is size based byte swapped.
  *
@@ -1941,9 +1941,9 @@ extern unsigned long sun4v_vintr_set_target(unsigned long dev_handle,
  * and return the actual data read in RET2.  The data returned is size based
  * byte swapped.
  *
- * Non-significant bits in RET2 are not guarenteed to have any specific value
+ * Non-significant bits in RET2 are not guaranteed to have any specific value
  * and therefore must be ignored.  If RET1 is returned as non-zero, the data
- * value is not guarenteed to have any specific value and should be ignored.
+ * value is not guaranteed to have any specific value and should be ignored.
  *
  * The caller must have permission to read from the given devhandle, real
  * address, which must be an IO address.  The argument real address must be a
@@ -2456,9 +2456,9 @@ extern unsigned long sun4v_vintr_set_target(unsigned long dev_handle,
  *
  * As receive queue configuration causes a reset of the queue's head and
  * tail pointers there is no way for a gues to determine how many entries
- * have been received between a preceeding ldc_get_rx_state() API call
+ * have been received between a preceding ldc_get_rx_state() API call
  * and the completion of the configuration operation.  It should be noted
- * that datagram delivery is not guarenteed via domain channels anyway,
+ * that datagram delivery is not guaranteed via domain channels anyway,
  * and therefore any higher protocol should be resilient to datagram
  * loss if necessary.  However, to overcome this specific race potential
  * it is recommended, for example, that a higher level protocol be employed
diff --git a/arch/sparc/include/asm/ns87303.h b/arch/sparc/include/asm/ns87303.h
index 686defe6aaa0..af755483e17d 100644
--- a/arch/sparc/include/asm/ns87303.h
+++ b/arch/sparc/include/asm/ns87303.h
@@ -37,7 +37,7 @@
 /* Power and Test Register (PTR) bits */
 #define PTR_LPTB_IRQ7	0x08
 #define PTR_LEVEL_IRQ	0x80	/* When not ECP/EPP: Use level IRQ           */
-#define PTR_LPT_REG_DIR	0x80	/* When ECP/EPP: LPT CTR controlls direction */
+#define PTR_LPT_REG_DIR	0x80	/* When ECP/EPP: LPT CTR controls direction */
 				/*               of the parallel port	     */
 
 /* Function Control Register (FCR) bits */
diff --git a/arch/sparc/include/asm/pcr.h b/arch/sparc/include/asm/pcr.h
index 843e4faf6a50..288d7beba051 100644
--- a/arch/sparc/include/asm/pcr.h
+++ b/arch/sparc/include/asm/pcr.h
@@ -31,7 +31,7 @@ extern unsigned int picl_shift;
 
 /* In order to commonize as much of the implementation as
  * possible, we use PICH as our counter.  Mostly this is
- * to accomodate Niagara-1 which can only count insn cycles
+ * to accommodate Niagara-1 which can only count insn cycles
  * in PICH.
  */
 static inline u64 picl_value(unsigned int nmi_hz)
diff --git a/arch/sparc/include/asm/ptrace.h b/arch/sparc/include/asm/ptrace.h
index 30b0b797dc0c..c7ad3fe2b252 100644
--- a/arch/sparc/include/asm/ptrace.h
+++ b/arch/sparc/include/asm/ptrace.h
@@ -33,7 +33,7 @@ struct pt_regs {
 	 * things like "in a system call" etc. for an arbitray
 	 * process.
 	 *
-	 * The PT_REGS_MAGIC is choosen such that it can be
+	 * The PT_REGS_MAGIC is chosen such that it can be
 	 * loaded completely using just a sethi instruction.
 	 */
 	unsigned int magic;
diff --git a/arch/sparc/include/asm/unistd.h b/arch/sparc/include/asm/unistd.h
index 2f475d7c0b53..9d897b6db983 100644
--- a/arch/sparc/include/asm/unistd.h
+++ b/arch/sparc/include/asm/unistd.h
@@ -403,8 +403,9 @@
 #define __NR_name_to_handle_at	332
 #define __NR_open_by_handle_at	333
 #define __NR_clock_adjtime	334
+#define __NR_syncfs		335
 
-#define NR_syscalls		335
+#define NR_syscalls		336
 
 #ifdef __32bit_syscall_numbers__
 /* Sparc 32-bit only has the "setresuid32", "getresuid32" variants,
diff --git a/arch/sparc/kernel/auxio_64.c b/arch/sparc/kernel/auxio_64.c
index 2abace076c7d..773091ac71a3 100644
--- a/arch/sparc/kernel/auxio_64.c
+++ b/arch/sparc/kernel/auxio_64.c
@@ -93,7 +93,7 @@ void auxio_set_lte(int on)
 }
 EXPORT_SYMBOL(auxio_set_lte);
 
-static struct of_device_id __initdata auxio_match[] = {
+static const struct of_device_id auxio_match[] = {
 	{
 		.name = "auxio",
 	},
diff --git a/arch/sparc/kernel/central.c b/arch/sparc/kernel/central.c
index 136d3718a74a..7eef3f741963 100644
--- a/arch/sparc/kernel/central.c
+++ b/arch/sparc/kernel/central.c
@@ -140,7 +140,7 @@ out_free:
 	goto out;
 }
 
-static struct of_device_id __initdata clock_board_match[] = {
+static const struct of_device_id clock_board_match[] = {
 	{
 		.name = "clock-board",
 	},
@@ -245,7 +245,7 @@ out_free:
 	goto out;
 }
 
-static struct of_device_id __initdata fhc_match[] = {
+static const struct of_device_id fhc_match[] = {
 	{
 		.name = "fhc",
 	},
diff --git a/arch/sparc/kernel/ds.c b/arch/sparc/kernel/ds.c
index 4a700f4b79ce..3add4de8a1a9 100644
--- a/arch/sparc/kernel/ds.c
+++ b/arch/sparc/kernel/ds.c
@@ -1218,7 +1218,7 @@ static int ds_remove(struct vio_dev *vdev)
 	return 0;
 }
 
-static struct vio_device_id __initdata ds_match[] = {
+static const struct vio_device_id ds_match[] = {
 	{
 		.type = "domain-services-port",
 	},
diff --git a/arch/sparc/kernel/entry.S b/arch/sparc/kernel/entry.S
index 1504df8ddf70..6da784a5612b 100644
--- a/arch/sparc/kernel/entry.S
+++ b/arch/sparc/kernel/entry.S
@@ -801,7 +801,7 @@ vac_linesize_patch_32:		subcc	%l7, 32, %l7
 	.globl	vac_hwflush_patch1_on, vac_hwflush_patch2_on
 
 /*
- * Ugly, but we cant use hardware flushing on the sun4 and we'd require
+ * Ugly, but we can't use hardware flushing on the sun4 and we'd require
  * two instructions (Anton)
  */
 vac_hwflush_patch1_on:		addcc	%l7, -PAGE_SIZE, %l7
@@ -851,7 +851,7 @@ sun4c_fault:
 	 sethi	%hi(~((1 << SUN4C_REAL_PGDIR_SHIFT) - 1)), %l4
 
 	/* If the kernel references a bum kernel pointer, or a pte which
-	 * points to a non existant page in ram, we will run this code
+	 * points to a non existent page in ram, we will run this code
 	 * _forever_ and lock up the machine!!!!! So we must check for
 	 * this condition, the AC_SYNC_ERR bits are what we must examine.
 	 * Also a parity error would make this happen as well.  So we just
@@ -1283,7 +1283,7 @@ linux_syscall_trace:
 	.globl	ret_from_fork
 ret_from_fork:
 	call	schedule_tail
-	 mov	%g3, %o0
+	 ld	[%g3 + TI_TASK], %o0
 	b	ret_sys_call
 	 ld	[%sp + STACKFRAME_SZ + PT_I0], %o0
 
diff --git a/arch/sparc/kernel/head_64.S b/arch/sparc/kernel/head_64.S
index f8f21050448b..aa594c792d19 100644
--- a/arch/sparc/kernel/head_64.S
+++ b/arch/sparc/kernel/head_64.S
@@ -85,7 +85,7 @@ sparc_ramdisk_image64:
 sparc64_boot:
 	mov	%o4, %l7
 
-	/* We need to remap the kernel.  Use position independant
+	/* We need to remap the kernel.  Use position independent
 	 * code to remap us to KERNBASE.
 	 *
 	 * SILO can invoke us with 32-bit address masking enabled,
diff --git a/arch/sparc/kernel/init_task.c b/arch/sparc/kernel/init_task.c
index 5fe3d65581f7..35f141a9f506 100644
--- a/arch/sparc/kernel/init_task.c
+++ b/arch/sparc/kernel/init_task.c
@@ -15,7 +15,7 @@ EXPORT_SYMBOL(init_task);
 
 /* .text section in head.S is aligned at 8k boundary and this gets linked
  * right after that so that the init_thread_union is aligned properly as well.
- * If this is not aligned on a 8k boundry, then you should change code
+ * If this is not aligned on a 8k boundary, then you should change code
  * in etrap.S which assumes it.
  */
 union thread_union init_thread_union __init_task_data =
diff --git a/arch/sparc/kernel/irq_64.c b/arch/sparc/kernel/irq_64.c
index eb16e3b8a2dd..b1d275ce3435 100644
--- a/arch/sparc/kernel/irq_64.c
+++ b/arch/sparc/kernel/irq_64.c
@@ -162,47 +162,14 @@ void irq_free(unsigned int irq)
 /*
  * /proc/interrupts printing:
  */
-
-int show_interrupts(struct seq_file *p, void *v)
+int arch_show_interrupts(struct seq_file *p, int prec)
 {
-	int i = *(loff_t *) v, j;
-	struct irqaction * action;
-	unsigned long flags;
+	int j;
 
-	if (i == 0) {
-		seq_printf(p, "           ");
-		for_each_online_cpu(j)
-			seq_printf(p, "CPU%d       ",j);
-		seq_putc(p, '\n');
-	}
-
-	if (i < NR_IRQS) {
-		raw_spin_lock_irqsave(&irq_desc[i].lock, flags);
-		action = irq_desc[i].action;
-		if (!action)
-			goto skip;
-		seq_printf(p, "%3d: ",i);
-#ifndef CONFIG_SMP
-		seq_printf(p, "%10u ", kstat_irqs(i));
-#else
-		for_each_online_cpu(j)
-			seq_printf(p, "%10u ", kstat_irqs_cpu(i, j));
-#endif
-		seq_printf(p, " %9s", irq_desc[i].irq_data.chip->name);
-		seq_printf(p, "  %s", action->name);
-
-		for (action=action->next; action; action = action->next)
-			seq_printf(p, ", %s", action->name);
-
-		seq_putc(p, '\n');
-skip:
-		raw_spin_unlock_irqrestore(&irq_desc[i].lock, flags);
-	} else if (i == NR_IRQS) {
-		seq_printf(p, "NMI: ");
-		for_each_online_cpu(j)
-			seq_printf(p, "%10u ", cpu_data(j).__nmi_count);
-		seq_printf(p, "     Non-maskable interrupts\n");
-	}
+	seq_printf(p, "NMI: ");
+	for_each_online_cpu(j)
+		seq_printf(p, "%10u ", cpu_data(j).__nmi_count);
+	seq_printf(p, "     Non-maskable interrupts\n");
 	return 0;
 }
 
@@ -344,10 +311,6 @@ static void sun4u_irq_disable(struct irq_data *data)
 static void sun4u_irq_eoi(struct irq_data *data)
 {
 	struct irq_handler_data *handler_data = data->handler_data;
-	struct irq_desc *desc = irq_desc + data->irq;
-
-	if (unlikely(desc->status & (IRQ_DISABLED|IRQ_INPROGRESS)))
-		return;
 
 	if (likely(handler_data))
 		upa_writeq(ICLR_IDLE, handler_data->iclr);
@@ -402,12 +365,8 @@ static void sun4v_irq_disable(struct irq_data *data)
 static void sun4v_irq_eoi(struct irq_data *data)
 {
 	unsigned int ino = irq_table[data->irq].dev_ino;
-	struct irq_desc *desc = irq_desc + data->irq;
 	int err;
 
-	if (unlikely(desc->status & (IRQ_DISABLED|IRQ_INPROGRESS)))
-		return;
-
 	err = sun4v_intr_setstate(ino, HV_INTR_STATE_IDLE);
 	if (err != HV_EOK)
 		printk(KERN_ERR "sun4v_intr_setstate(%x): "
@@ -481,13 +440,9 @@ static void sun4v_virq_disable(struct irq_data *data)
 
 static void sun4v_virq_eoi(struct irq_data *data)
 {
-	struct irq_desc *desc = irq_desc + data->irq;
 	unsigned long dev_handle, dev_ino;
 	int err;
 
-	if (unlikely(desc->status & (IRQ_DISABLED|IRQ_INPROGRESS)))
-		return;
-
 	dev_handle = irq_table[data->irq].dev_handle;
 	dev_ino = irq_table[data->irq].dev_ino;
 
@@ -505,6 +460,7 @@ static struct irq_chip sun4u_irq = {
 	.irq_disable		= sun4u_irq_disable,
 	.irq_eoi		= sun4u_irq_eoi,
 	.irq_set_affinity	= sun4u_set_affinity,
+	.flags			= IRQCHIP_EOI_IF_HANDLED,
 };
 
 static struct irq_chip sun4v_irq = {
@@ -513,6 +469,7 @@ static struct irq_chip sun4v_irq = {
 	.irq_disable		= sun4v_irq_disable,
 	.irq_eoi		= sun4v_irq_eoi,
 	.irq_set_affinity	= sun4v_set_affinity,
+	.flags			= IRQCHIP_EOI_IF_HANDLED,
 };
 
 static struct irq_chip sun4v_virq = {
@@ -521,30 +478,28 @@ static struct irq_chip sun4v_virq = {
 	.irq_disable		= sun4v_virq_disable,
 	.irq_eoi		= sun4v_virq_eoi,
 	.irq_set_affinity	= sun4v_virt_set_affinity,
+	.flags			= IRQCHIP_EOI_IF_HANDLED,
 };
 
-static void pre_flow_handler(unsigned int irq, struct irq_desc *desc)
+static void pre_flow_handler(struct irq_data *d)
 {
-	struct irq_handler_data *handler_data = get_irq_data(irq);
-	unsigned int ino = irq_table[irq].dev_ino;
+	struct irq_handler_data *handler_data = irq_data_get_irq_handler_data(d);
+	unsigned int ino = irq_table[d->irq].dev_ino;
 
 	handler_data->pre_handler(ino, handler_data->arg1, handler_data->arg2);
-
-	handle_fasteoi_irq(irq, desc);
 }
 
 void irq_install_pre_handler(int irq,
 			     void (*func)(unsigned int, void *, void *),
 			     void *arg1, void *arg2)
 {
-	struct irq_handler_data *handler_data = get_irq_data(irq);
-	struct irq_desc *desc = irq_desc + irq;
+	struct irq_handler_data *handler_data = irq_get_handler_data(irq);
 
 	handler_data->pre_handler = func;
 	handler_data->arg1 = arg1;
 	handler_data->arg2 = arg2;
 
-	desc->handle_irq = pre_flow_handler;
+	__irq_set_preflow_handler(irq, pre_flow_handler);
 }
 
 unsigned int build_irq(int inofixup, unsigned long iclr, unsigned long imap)
@@ -562,13 +517,11 @@ unsigned int build_irq(int inofixup, unsigned long iclr, unsigned long imap)
 	if (!irq) {
 		irq = irq_alloc(0, ino);
 		bucket_set_irq(__pa(bucket), irq);
-		set_irq_chip_and_handler_name(irq,
-					      &sun4u_irq,
-					      handle_fasteoi_irq,
-					      "IVEC");
+		irq_set_chip_and_handler_name(irq, &sun4u_irq,
+					      handle_fasteoi_irq, "IVEC");
 	}
 
-	handler_data = get_irq_data(irq);
+	handler_data = irq_get_handler_data(irq);
 	if (unlikely(handler_data))
 		goto out;
 
@@ -577,7 +530,7 @@ unsigned int build_irq(int inofixup, unsigned long iclr, unsigned long imap)
 		prom_printf("IRQ: kzalloc(irq_handler_data) failed.\n");
 		prom_halt();
 	}
-	set_irq_data(irq, handler_data);
+	irq_set_handler_data(irq, handler_data);
 
 	handler_data->imap  = imap;
 	handler_data->iclr  = iclr;
@@ -600,12 +553,11 @@ static unsigned int sun4v_build_common(unsigned long sysino,
 	if (!irq) {
 		irq = irq_alloc(0, sysino);
 		bucket_set_irq(__pa(bucket), irq);
-		set_irq_chip_and_handler_name(irq, chip,
-					      handle_fasteoi_irq,
+		irq_set_chip_and_handler_name(irq, chip, handle_fasteoi_irq,
 					      "IVEC");
 	}
 
-	handler_data = get_irq_data(irq);
+	handler_data = irq_get_handler_data(irq);
 	if (unlikely(handler_data))
 		goto out;
 
@@ -614,7 +566,7 @@ static unsigned int sun4v_build_common(unsigned long sysino,
 		prom_printf("IRQ: kzalloc(irq_handler_data) failed.\n");
 		prom_halt();
 	}
-	set_irq_data(irq, handler_data);
+	irq_set_handler_data(irq, handler_data);
 
 	/* Catch accidental accesses to these things.  IMAP/ICLR handling
 	 * is done by hypervisor calls on sun4v platforms, not by direct
@@ -639,7 +591,6 @@ unsigned int sun4v_build_virq(u32 devhandle, unsigned int devino)
 	struct irq_handler_data *handler_data;
 	unsigned long hv_err, cookie;
 	struct ino_bucket *bucket;
-	struct irq_desc *desc;
 	unsigned int irq;
 
 	bucket = kzalloc(sizeof(struct ino_bucket), GFP_ATOMIC);
@@ -660,8 +611,7 @@ unsigned int sun4v_build_virq(u32 devhandle, unsigned int devino)
 	irq = irq_alloc(devhandle, devino);
 	bucket_set_irq(__pa(bucket), irq);
 
-	set_irq_chip_and_handler_name(irq, &sun4v_virq,
-				      handle_fasteoi_irq,
+	irq_set_chip_and_handler_name(irq, &sun4v_virq, handle_fasteoi_irq,
 				      "IVEC");
 
 	handler_data = kzalloc(sizeof(struct irq_handler_data), GFP_ATOMIC);
@@ -672,10 +622,8 @@ unsigned int sun4v_build_virq(u32 devhandle, unsigned int devino)
 	 * especially wrt. locking, we do not let request_irq() enable
 	 * the interrupt.
 	 */
-	desc = irq_desc + irq;
-	desc->status |= IRQ_NOAUTOEN;
-
-	set_irq_data(irq, handler_data);
+	irq_set_status_flags(irq, IRQ_NOAUTOEN);
+	irq_set_handler_data(irq, handler_data);
 
 	/* Catch accidental accesses to these things.  IMAP/ICLR handling
 	 * is done by hypervisor calls on sun4v platforms, not by direct
@@ -734,7 +682,6 @@ void __irq_entry handler_irq(int pil, struct pt_regs *regs)
 	orig_sp = set_hardirq_stack();
 
 	while (bucket_pa) {
-		struct irq_desc *desc;
 		unsigned long next_pa;
 		unsigned int irq;
 
@@ -742,10 +689,7 @@ void __irq_entry handler_irq(int pil, struct pt_regs *regs)
 		irq = bucket_get_irq(bucket_pa);
 		bucket_clear_chain_pa(bucket_pa);
 
-		desc = irq_desc + irq;
-
-		if (!(desc->status & IRQ_DISABLED))
-			desc->handle_irq(irq, desc);
+		generic_handle_irq(irq);
 
 		bucket_pa = next_pa;
 	}
@@ -788,19 +732,18 @@ void fixup_irqs(void)
 	unsigned int irq;
 
 	for (irq = 0; irq < NR_IRQS; irq++) {
+		struct irq_desc *desc = irq_to_desc(irq);
+		struct irq_data *data = irq_desc_get_irq_data(desc);
 		unsigned long flags;
 
-		raw_spin_lock_irqsave(&irq_desc[irq].lock, flags);
-		if (irq_desc[irq].action &&
-		    !(irq_desc[irq].status & IRQ_PER_CPU)) {
-			struct irq_data *data = irq_get_irq_data(irq);
-
+		raw_spin_lock_irqsave(&desc->lock, flags);
+		if (desc->action && !irqd_is_per_cpu(data)) {
 			if (data->chip->irq_set_affinity)
 				data->chip->irq_set_affinity(data,
-				                             data->affinity,
-				                             false);
+							     data->affinity,
+							     false);
 		}
-		raw_spin_unlock_irqrestore(&irq_desc[irq].lock, flags);
+		raw_spin_unlock_irqrestore(&desc->lock, flags);
 	}
 
 	tick_ops->disable_irq();
@@ -1038,5 +981,5 @@ void __init init_IRQ(void)
 			     : "i" (PSTATE_IE)
 			     : "g1");
 
-	irq_desc[0].action = &timer_irq_action;
+	irq_to_desc(0)->action = &timer_irq_action;
 }
diff --git a/arch/sparc/kernel/mdesc.c b/arch/sparc/kernel/mdesc.c
index 6addb914fcc8..56db06432ce9 100644
--- a/arch/sparc/kernel/mdesc.c
+++ b/arch/sparc/kernel/mdesc.c
@@ -107,7 +107,7 @@ static struct mdesc_handle * __init mdesc_memblock_alloc(unsigned int mdesc_size
 	return hp;
 }
 
-static void mdesc_memblock_free(struct mdesc_handle *hp)
+static void __init mdesc_memblock_free(struct mdesc_handle *hp)
 {
 	unsigned int alloc_size;
 	unsigned long start;
diff --git a/arch/sparc/kernel/of_device_64.c b/arch/sparc/kernel/of_device_64.c
index 63cd4e5d47c2..5c149689bb20 100644
--- a/arch/sparc/kernel/of_device_64.c
+++ b/arch/sparc/kernel/of_device_64.c
@@ -459,7 +459,7 @@ apply_interrupt_map(struct device_node *dp, struct device_node *pp,
 		 *
 		 * Handle this by deciding that, if we didn't get a
 		 * match in the parent's 'interrupt-map', and the
-		 * parent is an IRQ translater, then use the parent as
+		 * parent is an IRQ translator, then use the parent as
 		 * our IRQ controller.
 		 */
 		if (pp->irq_trans)
diff --git a/arch/sparc/kernel/pci.c b/arch/sparc/kernel/pci.c
index 44f41e312f73..713dc91020a6 100644
--- a/arch/sparc/kernel/pci.c
+++ b/arch/sparc/kernel/pci.c
@@ -1012,7 +1012,7 @@ int arch_setup_msi_irq(struct pci_dev *pdev, struct msi_desc *desc)
 
 void arch_teardown_msi_irq(unsigned int irq)
 {
-	struct msi_desc *entry = get_irq_msi(irq);
+	struct msi_desc *entry = irq_get_msi_desc(irq);
 	struct pci_dev *pdev = entry->dev;
 	struct pci_pbm_info *pbm = pdev->dev.archdata.host_controller;
 
diff --git a/arch/sparc/kernel/pci_fire.c b/arch/sparc/kernel/pci_fire.c
index 3d70f8326efd..d29a32fcc5e4 100644
--- a/arch/sparc/kernel/pci_fire.c
+++ b/arch/sparc/kernel/pci_fire.c
@@ -496,7 +496,7 @@ out_err:
 	return err;
 }
 
-static struct of_device_id __initdata fire_match[] = {
+static const struct of_device_id fire_match[] = {
 	{
 		.name = "pci",
 		.compatible = "pciex108e,80f0",
diff --git a/arch/sparc/kernel/pci_msi.c b/arch/sparc/kernel/pci_msi.c
index 550e937720e7..30982e9ab626 100644
--- a/arch/sparc/kernel/pci_msi.c
+++ b/arch/sparc/kernel/pci_msi.c
@@ -30,13 +30,10 @@ static irqreturn_t sparc64_msiq_interrupt(int irq, void *cookie)
 
 		err = ops->dequeue_msi(pbm, msiqid, &head, &msi);
 		if (likely(err > 0)) {
-			struct irq_desc *desc;
 			unsigned int irq;
 
 			irq = pbm->msi_irq_table[msi - pbm->msi_first];
-			desc = irq_desc + irq;
-
-			desc->handle_irq(irq, desc);
+			generic_handle_irq(irq);
 		}
 
 		if (unlikely(err < 0))
@@ -136,8 +133,8 @@ static int sparc64_setup_msi_irq(unsigned int *irq_p,
 	if (!*irq_p)
 		goto out_err;
 
-	set_irq_chip_and_handler_name(*irq_p, &msi_irq,
-				      handle_simple_irq, "MSI");
+	irq_set_chip_and_handler_name(*irq_p, &msi_irq, handle_simple_irq,
+				      "MSI");
 
 	err = alloc_msi(pbm);
 	if (unlikely(err < 0))
@@ -163,7 +160,7 @@ static int sparc64_setup_msi_irq(unsigned int *irq_p,
 	}
 	msg.data = msi;
 
-	set_irq_msi(*irq_p, entry);
+	irq_set_msi_desc(*irq_p, entry);
 	write_msi_msg(*irq_p, &msg);
 
 	return 0;
@@ -172,7 +169,7 @@ out_msi_free:
 	free_msi(pbm, msi);
 
 out_irq_free:
-	set_irq_chip(*irq_p, NULL);
+	irq_set_chip(*irq_p, NULL);
 	irq_free(*irq_p);
 	*irq_p = 0;
 
@@ -211,7 +208,7 @@ static void sparc64_teardown_msi_irq(unsigned int irq,
 
 	free_msi(pbm, msi_num);
 
-	set_irq_chip(irq, NULL);
+	irq_set_chip(irq, NULL);
 	irq_free(irq);
 }
 
diff --git a/arch/sparc/kernel/pci_psycho.c b/arch/sparc/kernel/pci_psycho.c
index 56ee745064de..86ae08d9b6ee 100644
--- a/arch/sparc/kernel/pci_psycho.c
+++ b/arch/sparc/kernel/pci_psycho.c
@@ -592,7 +592,7 @@ out_err:
 	return err;
 }
 
-static struct of_device_id __initdata psycho_match[] = {
+static const struct of_device_id psycho_match[] = {
 	{
 		.name = "pci",
 		.compatible = "pci108e,8000",
diff --git a/arch/sparc/kernel/pci_sabre.c b/arch/sparc/kernel/pci_sabre.c
index 2857073342d2..948068a083fc 100644
--- a/arch/sparc/kernel/pci_sabre.c
+++ b/arch/sparc/kernel/pci_sabre.c
@@ -581,7 +581,7 @@ out_err:
 	return err;
 }
 
-static struct of_device_id __initdata sabre_match[] = {
+static const struct of_device_id sabre_match[] = {
 	{
 		.name = "pci",
 		.compatible = "pci108e,a001",
diff --git a/arch/sparc/kernel/pci_schizo.c b/arch/sparc/kernel/pci_schizo.c
index 1d41af73a92f..fecfcb2063c8 100644
--- a/arch/sparc/kernel/pci_schizo.c
+++ b/arch/sparc/kernel/pci_schizo.c
@@ -1470,7 +1470,7 @@ static int __devinit schizo_probe(struct platform_device *op)
  * and pci108e,8001.  So list the chips in reverse chronological
  * order.
  */
-static struct of_device_id __initdata schizo_match[] = {
+static const struct of_device_id schizo_match[] = {
 	{
 		.name = "pci",
 		.compatible = "pci108e,a801",
diff --git a/arch/sparc/kernel/pci_sun4v.c b/arch/sparc/kernel/pci_sun4v.c
index 6cf534681788..b01a06e9ae4e 100644
--- a/arch/sparc/kernel/pci_sun4v.c
+++ b/arch/sparc/kernel/pci_sun4v.c
@@ -998,7 +998,7 @@ out_err:
 	return err;
 }
 
-static struct of_device_id __initdata pci_sun4v_match[] = {
+static const struct of_device_id pci_sun4v_match[] = {
 	{
 		.name = "pci",
 		.compatible = "SUNW,sun4v-pci",
diff --git a/arch/sparc/kernel/perf_event.c b/arch/sparc/kernel/perf_event.c
index 760578687e7c..ee8426ede7c7 100644
--- a/arch/sparc/kernel/perf_event.c
+++ b/arch/sparc/kernel/perf_event.c
@@ -1027,7 +1027,7 @@ static int sparc_pmu_add(struct perf_event *event, int ef_flags)
 
 	/*
 	 * If group events scheduling transaction was started,
-	 * skip the schedulability test here, it will be peformed
+	 * skip the schedulability test here, it will be performed
 	 * at commit time(->commit_txn) as a whole
 	 */
 	if (cpuc->group_flag & PERF_EVENT_TXN)
diff --git a/arch/sparc/kernel/power.c b/arch/sparc/kernel/power.c
index cd725fe238b2..cb4c0f57c024 100644
--- a/arch/sparc/kernel/power.c
+++ b/arch/sparc/kernel/power.c
@@ -52,7 +52,7 @@ static int __devinit power_probe(struct platform_device *op)
 	return 0;
 }
 
-static struct of_device_id __initdata power_match[] = {
+static const struct of_device_id power_match[] = {
 	{
 		.name = "power",
 	},
diff --git a/arch/sparc/kernel/systbls_32.S b/arch/sparc/kernel/systbls_32.S
index 4b86eaf04fe5..47ac73c32e88 100644
--- a/arch/sparc/kernel/systbls_32.S
+++ b/arch/sparc/kernel/systbls_32.S
@@ -84,4 +84,4 @@ sys_call_table:
 /*320*/	.long sys_dup3, sys_pipe2, sys_inotify_init1, sys_accept4, sys_preadv
 /*325*/	.long sys_pwritev, sys_rt_tgsigqueueinfo, sys_perf_event_open, sys_recvmmsg, sys_fanotify_init
 /*330*/	.long sys_fanotify_mark, sys_prlimit64, sys_name_to_handle_at, sys_open_by_handle_at, sys_clock_adjtime
-
+/*335*/	.long sys_syncfs
diff --git a/arch/sparc/kernel/systbls_64.S b/arch/sparc/kernel/systbls_64.S
index 0331bafdf3a3..4f3170c1ef47 100644
--- a/arch/sparc/kernel/systbls_64.S
+++ b/arch/sparc/kernel/systbls_64.S
@@ -85,6 +85,7 @@ sys_call_table32:
 /*320*/	.word sys_dup3, sys_pipe2, sys_inotify_init1, sys_accept4, compat_sys_preadv
 	.word compat_sys_pwritev, compat_sys_rt_tgsigqueueinfo, sys_perf_event_open, compat_sys_recvmmsg, sys_fanotify_init
 /*330*/	.word sys32_fanotify_mark, sys_prlimit64, sys_name_to_handle_at, compat_sys_open_by_handle_at, compat_sys_clock_adjtime
+	.word sys_syncfs
 
 #endif /* CONFIG_COMPAT */
 
@@ -161,3 +162,4 @@ sys_call_table:
 /*320*/	.word sys_dup3, sys_pipe2, sys_inotify_init1, sys_accept4, sys_preadv
 	.word sys_pwritev, sys_rt_tgsigqueueinfo, sys_perf_event_open, sys_recvmmsg, sys_fanotify_init
 /*330*/	.word sys_fanotify_mark, sys_prlimit64, sys_name_to_handle_at, sys_open_by_handle_at, sys_clock_adjtime
+	.word sys_syncfs
diff --git a/arch/sparc/kernel/time_32.c b/arch/sparc/kernel/time_32.c
index 8237dd4dfeb4..4e236391b635 100644
--- a/arch/sparc/kernel/time_32.c
+++ b/arch/sparc/kernel/time_32.c
@@ -145,6 +145,10 @@ static int __devinit clock_probe(struct platform_device *op)
 	if (!model)
 		return -ENODEV;
 
+	/* Only the primary RTC has an address property */
+	if (!of_find_property(dp, "address", NULL))
+		return -ENODEV;
+
 	m48t59_rtc.resource = &op->resource[0];
 	if (!strcmp(model, "mk48t02")) {
 		/* Map the clock register io area read-only */
diff --git a/arch/sparc/kernel/time_64.c b/arch/sparc/kernel/time_64.c
index 95ec25faba39..2b8d54b2d850 100644
--- a/arch/sparc/kernel/time_64.c
+++ b/arch/sparc/kernel/time_64.c
@@ -442,7 +442,7 @@ static int __devinit rtc_probe(struct platform_device *op)
 	return platform_device_register(&rtc_cmos_device);
 }
 
-static struct of_device_id __initdata rtc_match[] = {
+static const struct of_device_id rtc_match[] = {
 	{
 		.name = "rtc",
 		.compatible = "m5819",
@@ -487,7 +487,7 @@ static int __devinit bq4802_probe(struct platform_device *op)
 	return platform_device_register(&rtc_bq4802_device);
 }
 
-static struct of_device_id __initdata bq4802_match[] = {
+static const struct of_device_id bq4802_match[] = {
 	{
 		.name = "rtc",
 		.compatible = "bq4802",
@@ -552,7 +552,7 @@ static int __devinit mostek_probe(struct platform_device *op)
 	return platform_device_register(&m48t59_rtc);
 }
 
-static struct of_device_id __initdata mostek_match[] = {
+static const struct of_device_id mostek_match[] = {
 	{
 		.name = "eeprom",
 	},
diff --git a/arch/sparc/math-emu/Makefile b/arch/sparc/math-emu/Makefile
index b9085ecbb27b..825dbee94d84 100644
--- a/arch/sparc/math-emu/Makefile
+++ b/arch/sparc/math-emu/Makefile
@@ -2,7 +2,7 @@
 # Makefile for the FPU instruction emulation.
 #
 
-# supress all warnings - as math.c produces a lot!
+# suppress all warnings - as math.c produces a lot!
 ccflags-y := -w
 
 obj-y    := math_$(BITS).o
diff --git a/arch/sparc/mm/init_32.c b/arch/sparc/mm/init_32.c
index 6d0e02c4fe09..4c31e2b6e71b 100644
--- a/arch/sparc/mm/init_32.c
+++ b/arch/sparc/mm/init_32.c
@@ -75,7 +75,7 @@ void __init kmap_init(void)
 	kmap_prot = __pgprot(SRMMU_ET_PTE | SRMMU_PRIV | SRMMU_CACHE);
 }
 
-void show_mem(void)
+void show_mem(unsigned int filter)
 {
 	printk("Mem-info:\n");
 	show_free_areas();
diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig
index f3b78701c219..e32b0c23c4c8 100644
--- a/arch/tile/Kconfig
+++ b/arch/tile/Kconfig
@@ -11,7 +11,7 @@ config TILE
 	select HAVE_GENERIC_HARDIRQS
 	select GENERIC_IRQ_PROBE
 	select GENERIC_PENDING_IRQ if SMP
-	select GENERIC_HARDIRQS_NO_DEPRECATED
+	select GENERIC_IRQ_SHOW
 
 # FIXME: investigate whether we need/want these options.
 #	select HAVE_IOREMAP_PROT
@@ -51,7 +51,7 @@ config GENERIC_TIME
 config GENERIC_CLOCKEVENTS
 	def_bool y
 
-# FIXME: tilegx can implement a more efficent rwsem.
+# FIXME: tilegx can implement a more efficient rwsem.
 config RWSEM_GENERIC_SPINLOCK
 	def_bool y
 
diff --git a/arch/tile/include/hv/drv_xgbe_intf.h b/arch/tile/include/hv/drv_xgbe_intf.h
index 146e47d5334b..f13188ac281a 100644
--- a/arch/tile/include/hv/drv_xgbe_intf.h
+++ b/arch/tile/include/hv/drv_xgbe_intf.h
@@ -319,7 +319,7 @@ typedef union
  *         is an error code, or zero if no error.  The val0 member is the
  *         updated value of seqno; it has been incremented by 1 for each
  *         packet sent.  That increment may be less than nentries if an
- *         error occured, or if some of the entries in the vector contain
+ *         error occurred, or if some of the entries in the vector contain
  *         handles equal to NETIO_PKT_HANDLE_NONE.  The val1 member is the
  *         updated value of nentries; it has been decremented by 1 for each
  *         vector entry processed.  Again, that decrement may be less than
diff --git a/arch/tile/include/hv/hypervisor.h b/arch/tile/include/hv/hypervisor.h
index 1b8bf03d62a0..ee41bca4c8c4 100644
--- a/arch/tile/include/hv/hypervisor.h
+++ b/arch/tile/include/hv/hypervisor.h
@@ -1340,7 +1340,7 @@ typedef struct
  *  this operation.  If any permanent delivery errors were encountered,
  *  the routine returns HV_ERECIP.  In the event of permanent delivery
  *  errors, it may be the case that delivery was not attempted to all
- *  recipients; if any messages were succesfully delivered, however,
+ *  recipients; if any messages were successfully delivered, however,
  *  recipients' state values will be updated appropriately.
  *
  *  It is explicitly legal to specify a recipient structure whose state
@@ -1359,7 +1359,7 @@ typedef struct
  *  never call hv_receive_message, or could register a different state
  *  buffer, losing the message.
  *
- *  Specifiying the same recipient more than once in the recipient list
+ *  Specifying the same recipient more than once in the recipient list
  *  is an error, which will not result in an error return but which may
  *  or may not result in more than one message being delivered to the
  *  recipient tile.
diff --git a/arch/tile/kernel/irq.c b/arch/tile/kernel/irq.c
index 0baa7580121f..aa0134db2dd6 100644
--- a/arch/tile/kernel/irq.c
+++ b/arch/tile/kernel/irq.c
@@ -241,14 +241,14 @@ void tile_irq_activate(unsigned int irq, int tile_irq_type)
 	irq_flow_handler_t handle = handle_level_irq;
 	if (tile_irq_type == TILE_IRQ_PERCPU)
 		handle = handle_percpu_irq;
-	set_irq_chip_and_handler(irq, &tile_irq_chip, handle);
+	irq_set_chip_and_handler(irq, &tile_irq_chip, handle);
 
 	/*
 	 * Flag interrupts that are hardware-cleared so that ack()
 	 * won't clear them.
 	 */
 	if (tile_irq_type == TILE_IRQ_HW_CLEAR)
-		set_irq_chip_data(irq, (void *)IS_HW_CLEARED);
+		irq_set_chip_data(irq, (void *)IS_HW_CLEARED);
 }
 EXPORT_SYMBOL(tile_irq_activate);
 
@@ -262,47 +262,6 @@ void ack_bad_irq(unsigned int irq)
  * Generic, controller-independent functions:
  */
 
-int show_interrupts(struct seq_file *p, void *v)
-{
-	int i = *(loff_t *) v, j;
-	struct irqaction *action;
-	unsigned long flags;
-
-	if (i == 0) {
-		seq_printf(p, "           ");
-		for (j = 0; j < NR_CPUS; j++)
-			if (cpu_online(j))
-				seq_printf(p, "CPU%-8d", j);
-		seq_putc(p, '\n');
-	}
-
-	if (i < NR_IRQS) {
-		struct irq_desc *desc = irq_to_desc(i);
-
-		raw_spin_lock_irqsave(&desc->lock, flags);
-		action = desc->action;
-		if (!action)
-			goto skip;
-		seq_printf(p, "%3d: ", i);
-#ifndef CONFIG_SMP
-		seq_printf(p, "%10u ", kstat_irqs(i));
-#else
-		for_each_online_cpu(j)
-			seq_printf(p, "%10u ", kstat_irqs_cpu(i, j));
-#endif
-		seq_printf(p, " %14s", get_irq_desc_chip(desc)->name);
-		seq_printf(p, "  %s", action->name);
-
-		for (action = action->next; action; action = action->next)
-			seq_printf(p, ", %s", action->name);
-
-		seq_putc(p, '\n');
-skip:
-		raw_spin_unlock_irqrestore(&desc->lock, flags);
-	}
-	return 0;
-}
-
 #if CHIP_HAS_IPI()
 int create_irq(void)
 {
diff --git a/arch/tile/kernel/pci.c b/arch/tile/kernel/pci.c
index a1ee25be9ad9..ea38f0c9ec7c 100644
--- a/arch/tile/kernel/pci.c
+++ b/arch/tile/kernel/pci.c
@@ -36,7 +36,7 @@
  * Initialization flow and process
  * -------------------------------
  *
- * This files containes the routines to search for PCI buses,
+ * This files contains the routines to search for PCI buses,
  * enumerate the buses, and configure any attached devices.
  *
  * There are two entry points here:
@@ -519,7 +519,7 @@ static int __devinit tile_cfg_read(struct pci_bus *bus,
 
 
 /*
- * See tile_cfg_read() for relevent comments.
+ * See tile_cfg_read() for relevant comments.
  * Note that "val" is the value to write, not a pointer to that value.
  */
 static int __devinit tile_cfg_write(struct pci_bus *bus,
diff --git a/arch/tile/mm/fault.c b/arch/tile/mm/fault.c
index 758f597f488c..51f8663bf074 100644
--- a/arch/tile/mm/fault.c
+++ b/arch/tile/mm/fault.c
@@ -290,7 +290,7 @@ static int handle_page_fault(struct pt_regs *regs,
 	/*
 	 * Early on, we need to check for migrating PTE entries;
 	 * see homecache.c.  If we find a migrating PTE, we wait until
-	 * the backing page claims to be done migrating, then we procede.
+	 * the backing page claims to be done migrating, then we proceed.
 	 * For kernel PTEs, we rewrite the PTE and return and retry.
 	 * Otherwise, we treat the fault like a normal "no PTE" fault,
 	 * rather than trying to patch up the existing PTE.
diff --git a/arch/tile/mm/hugetlbpage.c b/arch/tile/mm/hugetlbpage.c
index 201a582c4137..42cfcba4e1ef 100644
--- a/arch/tile/mm/hugetlbpage.c
+++ b/arch/tile/mm/hugetlbpage.c
@@ -219,7 +219,7 @@ try_again:
 	if (mm->free_area_cache < len)
 		goto fail;
 
-	/* either no address requested or cant fit in requested address hole */
+	/* either no address requested or can't fit in requested address hole */
 	addr = (mm->free_area_cache - len) & huge_page_mask(h);
 	do {
 		/*
diff --git a/arch/tile/mm/pgtable.c b/arch/tile/mm/pgtable.c
index 1a2b36f8866d..de7d8e21e01d 100644
--- a/arch/tile/mm/pgtable.c
+++ b/arch/tile/mm/pgtable.c
@@ -41,7 +41,7 @@
  * The normal show_free_areas() is too verbose on Tile, with dozens
  * of processors and often four NUMA zones each with high and lowmem.
  */
-void show_mem(void)
+void show_mem(unsigned int filter)
 {
 	struct zone *zone;
 
diff --git a/arch/um/Kconfig.common b/arch/um/Kconfig.common
index 1e78940218c0..a9234838e8a2 100644
--- a/arch/um/Kconfig.common
+++ b/arch/um/Kconfig.common
@@ -7,7 +7,7 @@ config UML
 	bool
 	default y
 	select HAVE_GENERIC_HARDIRQS
-	select GENERIC_HARDIRQS_NO_DEPRECATED
+	select GENERIC_IRQ_SHOW
 
 config MMU
 	bool
diff --git a/arch/um/Kconfig.net b/arch/um/Kconfig.net
index 9e9a4aaa703d..3160b1a5adb7 100644
--- a/arch/um/Kconfig.net
+++ b/arch/um/Kconfig.net
@@ -186,7 +186,7 @@ config UML_NET_SLIRP
         other transports, SLiRP works without the need of root level
         privleges, setuid binaries, or SLIP devices on the host.  This
         also means not every type of connection is possible, but most
-        situations can be accomodated with carefully crafted slirp
+        situations can be accommodated with carefully crafted slirp
         commands that can be passed along as part of the network device's
         setup string.  The effect of this transport on the UML is similar
         that of a host behind a firewall that masquerades all network
diff --git a/arch/um/kernel/irq.c b/arch/um/kernel/irq.c
index 64cfea80cfe2..9e485c770308 100644
--- a/arch/um/kernel/irq.c
+++ b/arch/um/kernel/irq.c
@@ -18,52 +18,6 @@
 #include "os.h"
 
 /*
- * Generic, controller-independent functions:
- */
-
-int show_interrupts(struct seq_file *p, void *v)
-{
-	int i = *(loff_t *) v, j;
-	struct irqaction * action;
-	unsigned long flags;
-
-	if (i == 0) {
-		seq_printf(p, "           ");
-		for_each_online_cpu(j)
-			seq_printf(p, "CPU%d       ",j);
-		seq_putc(p, '\n');
-	}
-
-	if (i < NR_IRQS) {
-		struct irq_desc *desc = irq_to_desc(i);
-
-		raw_spin_lock_irqsave(&desc->lock, flags);
-		action = desc->action;
-		if (!action)
-			goto skip;
-		seq_printf(p, "%3d: ",i);
-#ifndef CONFIG_SMP
-		seq_printf(p, "%10u ", kstat_irqs(i));
-#else
-		for_each_online_cpu(j)
-			seq_printf(p, "%10u ", kstat_irqs_cpu(i, j));
-#endif
-		seq_printf(p, " %14s", get_irq_desc_chip(desc)->name);
-		seq_printf(p, "  %s", action->name);
-
-		for (action=action->next; action; action = action->next)
-			seq_printf(p, ", %s", action->name);
-
-		seq_putc(p, '\n');
-skip:
-		raw_spin_unlock_irqrestore(&desc->lock, flags);
-	} else if (i == NR_IRQS)
-		seq_putc(p, '\n');
-
-	return 0;
-}
-
-/*
  * This list is accessed under irq_lock, except in sigio_handler,
  * where it is safe from being modified.  IRQ handlers won't change it -
  * if an IRQ source has vanished, it will be freed by free_irqs just
@@ -390,11 +344,10 @@ void __init init_IRQ(void)
 {
 	int i;
 
-	set_irq_chip_and_handler(TIMER_IRQ, &SIGVTALRM_irq_type, handle_edge_irq);
+	irq_set_chip_and_handler(TIMER_IRQ, &SIGVTALRM_irq_type, handle_edge_irq);
 
-	for (i = 1; i < NR_IRQS; i++) {
-		set_irq_chip_and_handler(i, &normal_irq_type, handle_edge_irq);
-	}
+	for (i = 1; i < NR_IRQS; i++)
+		irq_set_chip_and_handler(i, &normal_irq_type, handle_edge_irq);
 }
 
 /*
diff --git a/arch/unicore32/Kconfig b/arch/unicore32/Kconfig
index 4a36db45fb3d..d3a303246c9f 100644
--- a/arch/unicore32/Kconfig
+++ b/arch/unicore32/Kconfig
@@ -10,7 +10,7 @@ config UNICORE32
 	select HAVE_KERNEL_LZMA
 	select GENERIC_FIND_FIRST_BIT
 	select GENERIC_IRQ_PROBE
-	select GENERIC_HARDIRQS_NO_DEPRECATED
+	select GENERIC_IRQ_SHOW
 	select ARCH_WANT_FRAME_POINTERS
 	help
 	  UniCore-32 is 32-bit Instruction Set Architecture,
diff --git a/arch/unicore32/Makefile b/arch/unicore32/Makefile
index e08d6d370a8a..76a8beec7d03 100644
--- a/arch/unicore32/Makefile
+++ b/arch/unicore32/Makefile
@@ -48,7 +48,7 @@ ASM_GENERIC_HEADERS	+= bitsperlong.h bug.h bugs.h
 ASM_GENERIC_HEADERS	+= cputime.h current.h
 ASM_GENERIC_HEADERS	+= device.h div64.h
 ASM_GENERIC_HEADERS	+= emergency-restart.h errno.h
-ASM_GENERIC_HEADERS	+= fb.h fcntl.h ftrace.h
+ASM_GENERIC_HEADERS	+= fb.h fcntl.h ftrace.h futex.h
 ASM_GENERIC_HEADERS	+= hardirq.h hw_irq.h
 ASM_GENERIC_HEADERS	+= ioctl.h ioctls.h ipcbuf.h irq_regs.h
 ASM_GENERIC_HEADERS	+= kdebug.h kmap_types.h
diff --git a/arch/unicore32/include/asm/futex.h b/arch/unicore32/include/asm/futex.h
deleted file mode 100644
index 07dea6170558..000000000000
--- a/arch/unicore32/include/asm/futex.h
+++ /dev/null
@@ -1,143 +0,0 @@
-/*
- * linux/arch/unicore32/include/asm/futex.h
- *
- * Code specific to PKUnity SoC and UniCore ISA
- *
- * Copyright (C) 2001-2010 GUAN Xue-tao
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef __UNICORE_FUTEX_H__
-#define __UNICORE_FUTEX_H__
-
-#ifdef __KERNEL__
-
-#include <linux/futex.h>
-#include <linux/preempt.h>
-#include <linux/uaccess.h>
-#include <linux/errno.h>
-
-#define __futex_atomic_op(insn, ret, oldval, uaddr, oparg)	\
-	__asm__ __volatile__(					\
-	"1:	ldw.u	%1, [%2]\n"				\
-	"	" insn "\n"					\
-	"2:	stw.u	%0, [%2]\n"				\
-	"	mov	%0, #0\n"				\
-	"3:\n"							\
-	"	.pushsection __ex_table,\"a\"\n"		\
-	"	.align	3\n"					\
-	"	.long	1b, 4f, 2b, 4f\n"			\
-	"	.popsection\n"					\
-	"	.pushsection .fixup,\"ax\"\n"			\
-	"4:	mov	%0, %4\n"				\
-	"	b	3b\n"					\
-	"	.popsection"					\
-	: "=&r" (ret), "=&r" (oldval)				\
-	: "r" (uaddr), "r" (oparg), "Ir" (-EFAULT)		\
-	: "cc", "memory")
-
-static inline int
-futex_atomic_op_inuser(int encoded_op, int __user *uaddr)
-{
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
-	int oldval = 0, ret;
-
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(int)))
-		return -EFAULT;
-
-	pagefault_disable();	/* implies preempt_disable() */
-
-	switch (op) {
-	case FUTEX_OP_SET:
-		__futex_atomic_op("mov	%0, %3", ret, oldval, uaddr, oparg);
-		break;
-	case FUTEX_OP_ADD:
-		__futex_atomic_op("add	%0, %1, %3", ret, oldval, uaddr, oparg);
-		break;
-	case FUTEX_OP_OR:
-		__futex_atomic_op("or	%0, %1, %3", ret, oldval, uaddr, oparg);
-		break;
-	case FUTEX_OP_ANDN:
-		__futex_atomic_op("and	%0, %1, %3",
-				ret, oldval, uaddr, ~oparg);
-		break;
-	case FUTEX_OP_XOR:
-		__futex_atomic_op("xor	%0, %1, %3", ret, oldval, uaddr, oparg);
-		break;
-	default:
-		ret = -ENOSYS;
-	}
-
-	pagefault_enable();	/* subsumes preempt_enable() */
-
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ:
-			ret = (oldval == cmparg);
-			break;
-		case FUTEX_OP_CMP_NE:
-			ret = (oldval != cmparg);
-			break;
-		case FUTEX_OP_CMP_LT:
-			ret = (oldval <  cmparg);
-			break;
-		case FUTEX_OP_CMP_GE:
-			ret = (oldval >= cmparg);
-			break;
-		case FUTEX_OP_CMP_LE:
-			ret = (oldval <= cmparg);
-			break;
-		case FUTEX_OP_CMP_GT:
-			ret = (oldval >  cmparg);
-			break;
-		default:
-			ret = -ENOSYS;
-		}
-	}
-	return ret;
-}
-
-static inline int
-futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval, int newval)
-{
-	int val;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(int)))
-		return -EFAULT;
-
-	pagefault_disable();	/* implies preempt_disable() */
-
-	__asm__ __volatile__("@futex_atomic_cmpxchg_inatomic\n"
-	"1:	ldw.u	%0, [%3]\n"
-	"	cmpxor.a	%0, %1\n"
-	"	bne	3f\n"
-	"2:	stw.u	%2, [%3]\n"
-	"3:\n"
-	"	.pushsection __ex_table,\"a\"\n"
-	"	.align	3\n"
-	"	.long	1b, 4f, 2b, 4f\n"
-	"	.popsection\n"
-	"	.pushsection .fixup,\"ax\"\n"
-	"4:	mov	%0, %4\n"
-	"	b	3b\n"
-	"	.popsection"
-	: "=&r" (val)
-	: "r" (oldval), "r" (newval), "r" (uaddr), "Ir" (-EFAULT)
-	: "cc", "memory");
-
-	pagefault_enable();	/* subsumes preempt_enable() */
-
-	return val;
-}
-
-#endif /* __KERNEL__ */
-#endif /* __UNICORE_FUTEX_H__ */
diff --git a/arch/unicore32/include/mach/PKUnity.h b/arch/unicore32/include/mach/PKUnity.h
index a18bdc3810e6..8040d575dddb 100644
--- a/arch/unicore32/include/mach/PKUnity.h
+++ b/arch/unicore32/include/mach/PKUnity.h
@@ -24,16 +24,6 @@
 #define PKUNITY_MMIO_BASE		0x80000000 /* 0x80000000 - 0xFFFFFFFF 2GB */
 
 /*
- * PKUNITY Memory Map Addresses: 0x0D000000 - 0x0EFFFFFF (32MB)
- *	0x0D000000 - 0x0DFFFFFF 16MB: for UVC
- *	0x0E000000 - 0x0EFFFFFF 16MB: for UNIGFX
- */
-#define PKUNITY_UVC_MMAP_BASE		0x0D000000
-#define PKUNITY_UVC_MMAP_SIZE		0x01000000 /* 16MB */
-#define PKUNITY_UNIGFX_MMAP_BASE        0x0E000000
-#define PKUNITY_UNIGFX_MMAP_SIZE        0x01000000 /* 16MB */
-
-/*
  * PKUNITY System Bus Addresses (PCI): 0x80000000 - 0xBFFFFFFF (1GB)
  * 0x80000000 - 0x8000000B 12B    PCI Configuration regs
  * 0x80010000 - 0x80010250 592B   PCI Bridge Base
diff --git a/arch/unicore32/include/mach/memory.h b/arch/unicore32/include/mach/memory.h
index 0bf21c944710..4be72c21d491 100644
--- a/arch/unicore32/include/mach/memory.h
+++ b/arch/unicore32/include/mach/memory.h
@@ -50,7 +50,6 @@ void puv3_pci_adjust_zones(unsigned long *size, unsigned long *holes);
 
 /* kuser area */
 #define KUSER_VECPAGE_BASE	(KUSER_BASE + UL(0x3fff0000))
-#define KUSER_UNIGFX_BASE	(PAGE_OFFSET + PKUNITY_UNIGFX_MMAP_BASE)
 /* kuser_vecpage (0xbfff0000) is ro, and vectors page (0xffff0000) is rw */
 #define kuser_vecpage_to_vectors(x)	((x) - (KUSER_VECPAGE_BASE)	\
 					+ (VECTORS_BASE))
diff --git a/arch/unicore32/include/mach/regs-umal.h b/arch/unicore32/include/mach/regs-umal.h
index 885bb62fee71..aa22df74e11d 100644
--- a/arch/unicore32/include/mach/regs-umal.h
+++ b/arch/unicore32/include/mach/regs-umal.h
@@ -52,7 +52,7 @@
  */
 #define UMAL_MIISTATUS		(PKUNITY_UMAL_BASE + 0x0030)
 /*
- * MII Managment Indicator UMAL_MIIIDCT
+ * MII Management Indicator UMAL_MIIIDCT
  */
 #define UMAL_MIIIDCT		(PKUNITY_UMAL_BASE + 0x0034)
 /*
@@ -91,7 +91,7 @@
 #define UMAL_FIFORAM6		(PKUNITY_UMAL_BASE + 0x0078)
 #define UMAL_FIFORAM7		(PKUNITY_UMAL_BASE + 0x007c)
 
-/* MAHBE MODUEL OF UMAL */
+/* MAHBE MODULE OF UMAL */
 /* UMAL's MAHBE module interfaces to the host system through 32-bit AHB Master
  * and Slave ports.Registers within the M-AHBE provide Control and Status
  * information concerning these transfers.
diff --git a/arch/unicore32/kernel/head.S b/arch/unicore32/kernel/head.S
index 92255f3ab6a7..8caf322e110d 100644
--- a/arch/unicore32/kernel/head.S
+++ b/arch/unicore32/kernel/head.S
@@ -164,7 +164,7 @@ ENTRY(stext)
 ENDPROC(stext)
 
 /*
- * Enable the MMU.  This completely changes the stucture of the visible
+ * Enable the MMU.  This completely changes the structure of the visible
  * memory space.  You will not be able to trace execution through this.
  *
  *  r0  = cp#0 control register
diff --git a/arch/unicore32/kernel/irq.c b/arch/unicore32/kernel/irq.c
index b23624cf3062..2aa30a364bbe 100644
--- a/arch/unicore32/kernel/irq.c
+++ b/arch/unicore32/kernel/irq.c
@@ -321,24 +321,24 @@ void __init init_IRQ(void)
 	writel(1, INTC_ICCR);
 
 	for (irq = 0; irq < IRQ_GPIOHIGH; irq++) {
-		set_irq_chip(irq, &puv3_low_gpio_chip);
-		set_irq_handler(irq, handle_edge_irq);
+		irq_set_chip(irq, &puv3_low_gpio_chip);
+		irq_set_handler(irq, handle_edge_irq);
 		irq_modify_status(irq,
 			IRQ_NOREQUEST | IRQ_NOPROBE | IRQ_NOAUTOEN,
 			0);
 	}
 
 	for (irq = IRQ_GPIOHIGH + 1; irq < IRQ_GPIO0; irq++) {
-		set_irq_chip(irq, &puv3_normal_chip);
-		set_irq_handler(irq, handle_level_irq);
+		irq_set_chip(irq, &puv3_normal_chip);
+		irq_set_handler(irq, handle_level_irq);
 		irq_modify_status(irq,
 			IRQ_NOREQUEST | IRQ_NOAUTOEN,
 			IRQ_NOPROBE);
 	}
 
 	for (irq = IRQ_GPIO0; irq <= IRQ_GPIO27; irq++) {
-		set_irq_chip(irq, &puv3_high_gpio_chip);
-		set_irq_handler(irq, handle_edge_irq);
+		irq_set_chip(irq, &puv3_high_gpio_chip);
+		irq_set_handler(irq, handle_edge_irq);
 		irq_modify_status(irq,
 			IRQ_NOREQUEST | IRQ_NOPROBE | IRQ_NOAUTOEN,
 			0);
@@ -347,56 +347,14 @@ void __init init_IRQ(void)
 	/*
 	 * Install handler for GPIO 0-27 edge detect interrupts
 	 */
-	set_irq_chip(IRQ_GPIOHIGH, &puv3_normal_chip);
-	set_irq_chained_handler(IRQ_GPIOHIGH, puv3_gpio_handler);
+	irq_set_chip(IRQ_GPIOHIGH, &puv3_normal_chip);
+	irq_set_chained_handler(IRQ_GPIOHIGH, puv3_gpio_handler);
 
 #ifdef CONFIG_PUV3_GPIO
 	puv3_init_gpio();
 #endif
 }
 
-int show_interrupts(struct seq_file *p, void *v)
-{
-	int i = *(loff_t *) v, cpu;
-	struct irq_desc *desc;
-	struct irqaction *action;
-	unsigned long flags;
-
-	if (i == 0) {
-		char cpuname[12];
-
-		seq_printf(p, "    ");
-		for_each_present_cpu(cpu) {
-			sprintf(cpuname, "CPU%d", cpu);
-			seq_printf(p, " %10s", cpuname);
-		}
-		seq_putc(p, '\n');
-	}
-
-	if (i < nr_irqs) {
-		desc = irq_to_desc(i);
-		raw_spin_lock_irqsave(&desc->lock, flags);
-		action = desc->action;
-		if (!action)
-			goto unlock;
-
-		seq_printf(p, "%3d: ", i);
-		for_each_present_cpu(cpu)
-			seq_printf(p, "%10u ", kstat_irqs_cpu(i, cpu));
-		seq_printf(p, " %10s", desc->irq_data.chip->name ? : "-");
-		seq_printf(p, "  %s", action->name);
-		for (action = action->next; action; action = action->next)
-			seq_printf(p, ", %s", action->name);
-
-		seq_putc(p, '\n');
-unlock:
-		raw_spin_unlock_irqrestore(&desc->lock, flags);
-	} else if (i == nr_irqs) {
-		seq_printf(p, "Error in interrupt!\n");
-	}
-	return 0;
-}
-
 /*
  * do_IRQ handles all hardware IRQ's.  Decoded IRQs should not
  * come via this function.  Instead, they should provide their
diff --git a/arch/unicore32/kernel/puv3-core.c b/arch/unicore32/kernel/puv3-core.c
index 8b1b6beb858e..1a505a787765 100644
--- a/arch/unicore32/kernel/puv3-core.c
+++ b/arch/unicore32/kernel/puv3-core.c
@@ -99,11 +99,6 @@ static struct resource puv3_unigfx_resources[] = {
 		.end	= io_v2p(PKUNITY_UNIGFX_BASE) + 0xfff,
 		.flags	= IORESOURCE_MEM,
 	},
-	[1] = {
-		.start	= PKUNITY_UNIGFX_MMAP_BASE,
-		.end	= PKUNITY_UNIGFX_MMAP_BASE + PKUNITY_UNIGFX_MMAP_SIZE,
-		.flags	= IORESOURCE_MEM,
-	},
 };
 
 static struct resource puv3_rtc_resources[] = {
diff --git a/arch/unicore32/kernel/rtc.c b/arch/unicore32/kernel/rtc.c
index c5f068295b51..8cad70b3302c 100644
--- a/arch/unicore32/kernel/rtc.c
+++ b/arch/unicore32/kernel/rtc.c
@@ -88,11 +88,6 @@ static int puv3_rtc_setpie(struct device *dev, int enabled)
 	return 0;
 }
 
-static int puv3_rtc_setfreq(struct device *dev, int freq)
-{
-	return 0;
-}
-
 /* Time read/write */
 
 static int puv3_rtc_gettime(struct device *dev, struct rtc_time *rtc_tm)
@@ -214,8 +209,6 @@ static const struct rtc_class_ops puv3_rtcops = {
 	.set_time	= puv3_rtc_settime,
 	.read_alarm	= puv3_rtc_getalarm,
 	.set_alarm	= puv3_rtc_setalarm,
-	.irq_set_freq	= puv3_rtc_setfreq,
-	.irq_set_state	= puv3_rtc_setpie,
 	.proc	        = puv3_rtc_proc,
 };
 
@@ -294,8 +287,6 @@ static int puv3_rtc_probe(struct platform_device *pdev)
 
 	puv3_rtc_enable(pdev, 1);
 
-	puv3_rtc_setfreq(&pdev->dev, 1);
-
 	/* register RTC and exit */
 
 	rtc = rtc_device_register("pkunity", &pdev->dev, &puv3_rtcops,
diff --git a/arch/unicore32/kernel/setup.c b/arch/unicore32/kernel/setup.c
index 1e175a82844d..471b6bca8da4 100644
--- a/arch/unicore32/kernel/setup.c
+++ b/arch/unicore32/kernel/setup.c
@@ -64,12 +64,6 @@ static char default_command_line[COMMAND_LINE_SIZE] __initdata = CONFIG_CMDLINE;
  */
 static struct resource mem_res[] = {
 	{
-		.name = "Video RAM",
-		.start = 0,
-		.end = 0,
-		.flags = IORESOURCE_MEM
-	},
-	{
 		.name = "Kernel text",
 		.start = 0,
 		.end = 0,
@@ -83,9 +77,8 @@ static struct resource mem_res[] = {
 	}
 };
 
-#define video_ram   mem_res[0]
-#define kernel_code mem_res[1]
-#define kernel_data mem_res[2]
+#define kernel_code mem_res[0]
+#define kernel_data mem_res[1]
 
 /*
  * These functions re-use the assembly code in head.S, which
@@ -224,10 +217,6 @@ request_standard_resources(struct meminfo *mi)
 		    kernel_data.end <= res->end)
 			request_resource(res, &kernel_data);
 	}
-
-	video_ram.start = PKUNITY_UNIGFX_MMAP_BASE;
-	video_ram.end   = PKUNITY_UNIGFX_MMAP_BASE + PKUNITY_UNIGFX_MMAP_SIZE;
-	request_resource(&iomem_resource, &video_ram);
 }
 
 static void (*init_machine)(void) __initdata;
diff --git a/arch/unicore32/kernel/traps.c b/arch/unicore32/kernel/traps.c
index 25abbb101729..254e36fa9513 100644
--- a/arch/unicore32/kernel/traps.c
+++ b/arch/unicore32/kernel/traps.c
@@ -22,7 +22,6 @@
 #include <linux/delay.h>
 #include <linux/hardirq.h>
 #include <linux/init.h>
-#include <linux/uaccess.h>
 #include <linux/atomic.h>
 #include <linux/unistd.h>
 
diff --git a/arch/unicore32/kernel/vmlinux.lds.S b/arch/unicore32/kernel/vmlinux.lds.S
index 0b4eb89729e7..9bf7f7af52c5 100644
--- a/arch/unicore32/kernel/vmlinux.lds.S
+++ b/arch/unicore32/kernel/vmlinux.lds.S
@@ -14,6 +14,7 @@
 #include <asm/thread_info.h>
 #include <asm/memory.h>
 #include <asm/page.h>
+#include <asm/cache.h>
 
 OUTPUT_ARCH(unicore32)
 ENTRY(stext)
@@ -29,7 +30,7 @@ SECTIONS
 	HEAD_TEXT_SECTION
 	INIT_TEXT_SECTION(PAGE_SIZE)
 	INIT_DATA_SECTION(16)
-	PERCPU(PAGE_SIZE)
+	PERCPU(L1_CACHE_BYTES, PAGE_SIZE)
 	__init_end = .;
 
 	_stext = .;
@@ -45,10 +46,10 @@ SECTIONS
 
 	_sdata = .;
 	RO_DATA_SECTION(PAGE_SIZE)
-	RW_DATA_SECTION(32, PAGE_SIZE, THREAD_SIZE)
+	RW_DATA_SECTION(L1_CACHE_BYTES, PAGE_SIZE, THREAD_SIZE)
 	_edata = .;
 
-	EXCEPTION_TABLE(32)
+	EXCEPTION_TABLE(L1_CACHE_BYTES)
 	NOTES
 
 	BSS_SECTION(0, 0, 0)
diff --git a/arch/unicore32/mm/init.c b/arch/unicore32/mm/init.c
index 3dbe3709b69d..1fc02633f700 100644
--- a/arch/unicore32/mm/init.c
+++ b/arch/unicore32/mm/init.c
@@ -55,7 +55,7 @@ early_param("initrd", early_initrd);
  */
 struct meminfo meminfo;
 
-void show_mem(void)
+void show_mem(unsigned int filter)
 {
 	int free = 0, total = 0, reserved = 0;
 	int shared = 0, cached = 0, slab = 0, i;
diff --git a/arch/unicore32/mm/mmu.c b/arch/unicore32/mm/mmu.c
index 7bf3d588631f..db2d334941b4 100644
--- a/arch/unicore32/mm/mmu.c
+++ b/arch/unicore32/mm/mmu.c
@@ -338,15 +338,6 @@ void __init uc32_mm_memblock_reserve(void)
 	 * and can only be in node 0.
 	 */
 	memblock_reserve(__pa(swapper_pg_dir), PTRS_PER_PGD * sizeof(pgd_t));
-
-#ifdef CONFIG_PUV3_UNIGFX
-	/*
-	 * These should likewise go elsewhere.  They pre-reserve the
-	 * screen/video memory region at the 48M~64M of main system memory.
-	 */
-	memblock_reserve(PKUNITY_UNIGFX_MMAP_BASE, PKUNITY_UNIGFX_MMAP_SIZE);
-	memblock_reserve(PKUNITY_UVC_MMAP_BASE, PKUNITY_UVC_MMAP_SIZE);
-#endif
 }
 
 /*
@@ -371,17 +362,6 @@ static void __init devicemaps_init(void)
 		pmd_clear(pmd_off_k(addr));
 
 	/*
-	 * Create a mapping for UniGFX VRAM
-	 */
-#ifdef CONFIG_PUV3_UNIGFX
-	map.pfn = __phys_to_pfn(PKUNITY_UNIGFX_MMAP_BASE);
-	map.virtual = KUSER_UNIGFX_BASE;
-	map.length = PKUNITY_UNIGFX_MMAP_SIZE;
-	map.type = MT_KUSER;
-	create_mapping(&map);
-#endif
-
-	/*
 	 * Create a mapping for the machine vectors at the high-vectors
 	 * location (0xffff0000).  If we aren't using high-vectors, also
 	 * create a mapping at the low-vectors virtual address.
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 140e254fe546..cc6c53a95bfd 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -71,6 +71,7 @@ config X86
 	select GENERIC_IRQ_SHOW
 	select IRQ_FORCED_THREADING
 	select USE_GENERIC_SMP_HELPERS if SMP
+	select ARCH_NO_SYSDEV_OPS
 
 config INSTRUCTION_DECODER
 	def_bool (KPROBES || PERF_EVENTS)
diff --git a/arch/x86/crypto/aesni-intel_asm.S b/arch/x86/crypto/aesni-intel_asm.S
index adcf794b22e2..be6d9e365a80 100644
--- a/arch/x86/crypto/aesni-intel_asm.S
+++ b/arch/x86/crypto/aesni-intel_asm.S
@@ -1612,6 +1612,7 @@ _zero_cipher_left_encrypt:
         movdqa SHUF_MASK(%rip), %xmm10
 	PSHUFB_XMM %xmm10, %xmm0
 
+
 	ENCRYPT_SINGLE_BLOCK	%xmm0, %xmm1        # Encrypt(K, Yn)
 	sub $16, %r11
 	add %r13, %r11
@@ -1634,7 +1635,9 @@ _zero_cipher_left_encrypt:
 	# GHASH computation for the last <16 byte block
 	sub	%r13, %r11
 	add	$16, %r11
-	PSHUFB_XMM %xmm10, %xmm1
+
+	movdqa SHUF_MASK(%rip), %xmm10
+	PSHUFB_XMM %xmm10, %xmm0
 
 	# shuffle xmm0 back to output as ciphertext
 
diff --git a/arch/x86/crypto/aesni-intel_glue.c b/arch/x86/crypto/aesni-intel_glue.c
index e0e6340c8dad..2577613fb32b 100644
--- a/arch/x86/crypto/aesni-intel_glue.c
+++ b/arch/x86/crypto/aesni-intel_glue.c
@@ -828,9 +828,15 @@ static int rfc4106_init(struct crypto_tfm *tfm)
 	struct cryptd_aead *cryptd_tfm;
 	struct aesni_rfc4106_gcm_ctx *ctx = (struct aesni_rfc4106_gcm_ctx *)
 		PTR_ALIGN((u8 *)crypto_tfm_ctx(tfm), AESNI_ALIGN);
+	struct crypto_aead *cryptd_child;
+	struct aesni_rfc4106_gcm_ctx *child_ctx;
 	cryptd_tfm = cryptd_alloc_aead("__driver-gcm-aes-aesni", 0, 0);
 	if (IS_ERR(cryptd_tfm))
 		return PTR_ERR(cryptd_tfm);
+
+	cryptd_child = cryptd_aead_child(cryptd_tfm);
+	child_ctx = aesni_rfc4106_gcm_ctx_get(cryptd_child);
+	memcpy(child_ctx, ctx, sizeof(*ctx));
 	ctx->cryptd_tfm = cryptd_tfm;
 	tfm->crt_aead.reqsize = sizeof(struct aead_request)
 		+ crypto_aead_reqsize(&cryptd_tfm->base);
@@ -923,6 +929,9 @@ static int rfc4106_set_key(struct crypto_aead *parent, const u8 *key,
 	int ret = 0;
 	struct crypto_tfm *tfm = crypto_aead_tfm(parent);
 	struct aesni_rfc4106_gcm_ctx *ctx = aesni_rfc4106_gcm_ctx_get(parent);
+	struct crypto_aead *cryptd_child = cryptd_aead_child(ctx->cryptd_tfm);
+	struct aesni_rfc4106_gcm_ctx *child_ctx =
+                                 aesni_rfc4106_gcm_ctx_get(cryptd_child);
 	u8 *new_key_mem = NULL;
 
 	if (key_len < 4) {
@@ -966,6 +975,7 @@ static int rfc4106_set_key(struct crypto_aead *parent, const u8 *key,
 		goto exit;
 	}
 	ret = rfc4106_set_hash_subkey(ctx->hash_subkey, key, key_len);
+	memcpy(child_ctx, ctx, sizeof(*ctx));
 exit:
 	kfree(new_key_mem);
 	return ret;
@@ -997,7 +1007,6 @@ static int rfc4106_encrypt(struct aead_request *req)
 	int ret;
 	struct crypto_aead *tfm = crypto_aead_reqtfm(req);
 	struct aesni_rfc4106_gcm_ctx *ctx = aesni_rfc4106_gcm_ctx_get(tfm);
-	struct crypto_aead *cryptd_child = cryptd_aead_child(ctx->cryptd_tfm);
 
 	if (!irq_fpu_usable()) {
 		struct aead_request *cryptd_req =
@@ -1006,6 +1015,7 @@ static int rfc4106_encrypt(struct aead_request *req)
 		aead_request_set_tfm(cryptd_req, &ctx->cryptd_tfm->base);
 		return crypto_aead_encrypt(cryptd_req);
 	} else {
+		struct crypto_aead *cryptd_child = cryptd_aead_child(ctx->cryptd_tfm);
 		kernel_fpu_begin();
 		ret = cryptd_child->base.crt_aead.encrypt(req);
 		kernel_fpu_end();
@@ -1018,7 +1028,6 @@ static int rfc4106_decrypt(struct aead_request *req)
 	int ret;
 	struct crypto_aead *tfm = crypto_aead_reqtfm(req);
 	struct aesni_rfc4106_gcm_ctx *ctx = aesni_rfc4106_gcm_ctx_get(tfm);
-	struct crypto_aead *cryptd_child = cryptd_aead_child(ctx->cryptd_tfm);
 
 	if (!irq_fpu_usable()) {
 		struct aead_request *cryptd_req =
@@ -1027,6 +1036,7 @@ static int rfc4106_decrypt(struct aead_request *req)
 		aead_request_set_tfm(cryptd_req, &ctx->cryptd_tfm->base);
 		return crypto_aead_decrypt(cryptd_req);
 	} else {
+		struct crypto_aead *cryptd_child = cryptd_aead_child(ctx->cryptd_tfm);
 		kernel_fpu_begin();
 		ret = cryptd_child->base.crt_aead.decrypt(req);
 		kernel_fpu_end();
diff --git a/arch/x86/include/asm/apic.h b/arch/x86/include/asm/apic.h
index a279d98ea95e..2b7d573be549 100644
--- a/arch/x86/include/asm/apic.h
+++ b/arch/x86/include/asm/apic.h
@@ -2,7 +2,6 @@
 #define _ASM_X86_APIC_H
 
 #include <linux/cpumask.h>
-#include <linux/delay.h>
 #include <linux/pm.h>
 
 #include <asm/alternative.h>
diff --git a/arch/x86/include/asm/dma.h b/arch/x86/include/asm/dma.h
index 97b6d8114a43..057099e5faba 100644
--- a/arch/x86/include/asm/dma.h
+++ b/arch/x86/include/asm/dma.h
@@ -10,7 +10,6 @@
 
 #include <linux/spinlock.h>	/* And spinlocks */
 #include <asm/io.h>		/* need byte IO */
-#include <linux/delay.h>
 
 #ifdef HAVE_REALLY_SLOW_DMA_CONTROLLER
 #define dma_outb	outb_p
diff --git a/arch/x86/include/asm/i387.h b/arch/x86/include/asm/i387.h
index ef328901c802..c9e09ea05644 100644
--- a/arch/x86/include/asm/i387.h
+++ b/arch/x86/include/asm/i387.h
@@ -237,7 +237,7 @@ static inline void fpu_save_init(struct fpu *fpu)
 	} else if (use_fxsr()) {
 		fpu_fxsave(fpu);
 	} else {
-		asm volatile("fsave %[fx]; fwait"
+		asm volatile("fnsave %[fx]; fwait"
 			     : [fx] "=m" (fpu->state->fsave));
 		return;
 	}
diff --git a/arch/x86/include/asm/percpu.h b/arch/x86/include/asm/percpu.h
index a09e1f052d84..d475b4398d8b 100644
--- a/arch/x86/include/asm/percpu.h
+++ b/arch/x86/include/asm/percpu.h
@@ -45,7 +45,7 @@
 #include <linux/stringify.h>
 
 #ifdef CONFIG_SMP
-#define __percpu_arg(x)		"%%"__stringify(__percpu_seg)":%P" #x
+#define __percpu_prefix		"%%"__stringify(__percpu_seg)":"
 #define __my_cpu_offset		percpu_read(this_cpu_off)
 
 /*
@@ -62,9 +62,11 @@
 	(typeof(*(ptr)) __kernel __force *)tcp_ptr__;	\
 })
 #else
-#define __percpu_arg(x)		"%P" #x
+#define __percpu_prefix		""
 #endif
 
+#define __percpu_arg(x)		__percpu_prefix "%P" #x
+
 /*
  * Initialized pointers to per-cpu variables needed for the boot
  * processor need to use these macros to get the proper address
@@ -516,11 +518,11 @@ do {									\
 	typeof(o2) __n2 = n2;						\
 	typeof(o2) __dummy;						\
 	alternative_io("call this_cpu_cmpxchg16b_emu\n\t" P6_NOP4,	\
-		       "cmpxchg16b %%gs:(%%rsi)\n\tsetz %0\n\t",	\
+		       "cmpxchg16b " __percpu_prefix "(%%rsi)\n\tsetz %0\n\t",	\
 		       X86_FEATURE_CX16,				\
 		       ASM_OUTPUT2("=a"(__ret), "=d"(__dummy)),		\
 		       "S" (&pcp1), "b"(__n1), "c"(__n2),		\
-		       "a"(__o1), "d"(__o2));				\
+		       "a"(__o1), "d"(__o2) : "memory");		\
 	__ret;								\
 })
 
diff --git a/arch/x86/kernel/amd_iommu_init.c b/arch/x86/kernel/amd_iommu_init.c
index 6e11c8134158..246d727b65b7 100644
--- a/arch/x86/kernel/amd_iommu_init.c
+++ b/arch/x86/kernel/amd_iommu_init.c
@@ -21,7 +21,7 @@
 #include <linux/acpi.h>
 #include <linux/list.h>
 #include <linux/slab.h>
-#include <linux/sysdev.h>
+#include <linux/syscore_ops.h>
 #include <linux/interrupt.h>
 #include <linux/msi.h>
 #include <asm/pci-direct.h>
@@ -1260,7 +1260,7 @@ static void disable_iommus(void)
  * disable suspend until real resume implemented
  */
 
-static int amd_iommu_resume(struct sys_device *dev)
+static void amd_iommu_resume(void)
 {
 	struct amd_iommu *iommu;
 
@@ -1276,11 +1276,9 @@ static int amd_iommu_resume(struct sys_device *dev)
 	 */
 	amd_iommu_flush_all_devices();
 	amd_iommu_flush_all_domains();
-
-	return 0;
 }
 
-static int amd_iommu_suspend(struct sys_device *dev, pm_message_t state)
+static int amd_iommu_suspend(void)
 {
 	/* disable IOMMUs to go out of the way for BIOS */
 	disable_iommus();
@@ -1288,17 +1286,11 @@ static int amd_iommu_suspend(struct sys_device *dev, pm_message_t state)
 	return 0;
 }
 
-static struct sysdev_class amd_iommu_sysdev_class = {
-	.name = "amd_iommu",
+static struct syscore_ops amd_iommu_syscore_ops = {
 	.suspend = amd_iommu_suspend,
 	.resume = amd_iommu_resume,
 };
 
-static struct sys_device device_amd_iommu = {
-	.id = 0,
-	.cls = &amd_iommu_sysdev_class,
-};
-
 /*
  * This is the core init function for AMD IOMMU hardware in the system.
  * This function is called from the generic x86 DMA layer initialization
@@ -1415,14 +1407,6 @@ static int __init amd_iommu_init(void)
 		goto free;
 	}
 
-	ret = sysdev_class_register(&amd_iommu_sysdev_class);
-	if (ret)
-		goto free;
-
-	ret = sysdev_register(&device_amd_iommu);
-	if (ret)
-		goto free;
-
 	ret = amd_iommu_init_devices();
 	if (ret)
 		goto free;
@@ -1441,6 +1425,8 @@ static int __init amd_iommu_init(void)
 
 	amd_iommu_init_notifier();
 
+	register_syscore_ops(&amd_iommu_syscore_ops);
+
 	if (iommu_pass_through)
 		goto out;
 
diff --git a/arch/x86/kernel/amd_nb.c b/arch/x86/kernel/amd_nb.c
index 6801959a8b2a..4c39baa8facc 100644
--- a/arch/x86/kernel/amd_nb.c
+++ b/arch/x86/kernel/amd_nb.c
@@ -21,7 +21,7 @@ const struct pci_device_id amd_nb_misc_ids[] = {
 EXPORT_SYMBOL(amd_nb_misc_ids);
 
 static struct pci_device_id amd_nb_link_ids[] = {
-	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_15H_NB_LINK) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_15H_NB_F4) },
 	{}
 };
 
diff --git a/arch/x86/kernel/apb_timer.c b/arch/x86/kernel/apb_timer.c
index 1293c709ee85..cd1ffed4ee22 100644
--- a/arch/x86/kernel/apb_timer.c
+++ b/arch/x86/kernel/apb_timer.c
@@ -316,7 +316,7 @@ static void apbt_setup_irq(struct apbt_dev *adev)
 	irq_modify_status(adev->irq, 0, IRQ_MOVE_PCNTXT);
 	irq_set_affinity(adev->irq, cpumask_of(adev->cpu));
 	/* APB timer irqs are set up as mp_irqs, timer is edge type */
-	__set_irq_handler(adev->irq, handle_edge_irq, 0, "edge");
+	__irq_set_handler(adev->irq, handle_edge_irq, 0, "edge");
 
 	if (system_state == SYSTEM_BOOTING) {
 		if (request_irq(adev->irq, apbt_interrupt_handler,
diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c
index 966673f44141..fabf01eff771 100644
--- a/arch/x86/kernel/apic/apic.c
+++ b/arch/x86/kernel/apic/apic.c
@@ -24,7 +24,7 @@
 #include <linux/ftrace.h>
 #include <linux/ioport.h>
 #include <linux/module.h>
-#include <linux/sysdev.h>
+#include <linux/syscore_ops.h>
 #include <linux/delay.h>
 #include <linux/timex.h>
 #include <linux/dmar.h>
@@ -2046,7 +2046,7 @@ static struct {
 	unsigned int apic_thmr;
 } apic_pm_state;
 
-static int lapic_suspend(struct sys_device *dev, pm_message_t state)
+static int lapic_suspend(void)
 {
 	unsigned long flags;
 	int maxlvt;
@@ -2084,23 +2084,21 @@ static int lapic_suspend(struct sys_device *dev, pm_message_t state)
 	return 0;
 }
 
-static int lapic_resume(struct sys_device *dev)
+static void lapic_resume(void)
 {
 	unsigned int l, h;
 	unsigned long flags;
-	int maxlvt;
-	int ret = 0;
+	int maxlvt, ret;
 	struct IO_APIC_route_entry **ioapic_entries = NULL;
 
 	if (!apic_pm_state.active)
-		return 0;
+		return;
 
 	local_irq_save(flags);
 	if (intr_remapping_enabled) {
 		ioapic_entries = alloc_ioapic_entries();
 		if (!ioapic_entries) {
 			WARN(1, "Alloc ioapic_entries in lapic resume failed.");
-			ret = -ENOMEM;
 			goto restore;
 		}
 
@@ -2162,8 +2160,6 @@ static int lapic_resume(struct sys_device *dev)
 	}
 restore:
 	local_irq_restore(flags);
-
-	return ret;
 }
 
 /*
@@ -2171,17 +2167,11 @@ restore:
  * are needed on every CPU up until machine_halt/restart/poweroff.
  */
 
-static struct sysdev_class lapic_sysclass = {
-	.name		= "lapic",
+static struct syscore_ops lapic_syscore_ops = {
 	.resume		= lapic_resume,
 	.suspend	= lapic_suspend,
 };
 
-static struct sys_device device_lapic = {
-	.id	= 0,
-	.cls	= &lapic_sysclass,
-};
-
 static void __cpuinit apic_pm_activate(void)
 {
 	apic_pm_state.active = 1;
@@ -2189,16 +2179,11 @@ static void __cpuinit apic_pm_activate(void)
 
 static int __init init_lapic_sysfs(void)
 {
-	int error;
-
-	if (!cpu_has_apic)
-		return 0;
 	/* XXX: remove suspend/resume procs if !apic_pm_state.active? */
+	if (cpu_has_apic)
+		register_syscore_ops(&lapic_syscore_ops);
 
-	error = sysdev_class_register(&lapic_sysclass);
-	if (!error)
-		error = sysdev_register(&device_lapic);
-	return error;
+	return 0;
 }
 
 /* local apic needs to resume before other devices access its registers. */
diff --git a/arch/x86/kernel/apic/hw_nmi.c b/arch/x86/kernel/apic/hw_nmi.c
index c4e557a1ebb6..5260fe91bcb6 100644
--- a/arch/x86/kernel/apic/hw_nmi.c
+++ b/arch/x86/kernel/apic/hw_nmi.c
@@ -16,6 +16,7 @@
 #include <linux/kprobes.h>
 #include <linux/nmi.h>
 #include <linux/module.h>
+#include <linux/delay.h>
 
 #ifdef CONFIG_HARDLOCKUP_DETECTOR
 u64 hw_nmi_get_sample_period(void)
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index 180ca240e03c..68df09bba92e 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -30,7 +30,7 @@
 #include <linux/compiler.h>
 #include <linux/acpi.h>
 #include <linux/module.h>
-#include <linux/sysdev.h>
+#include <linux/syscore_ops.h>
 #include <linux/msi.h>
 #include <linux/htirq.h>
 #include <linux/freezer.h>
@@ -2918,89 +2918,84 @@ static int __init io_apic_bug_finalize(void)
 
 late_initcall(io_apic_bug_finalize);
 
-struct sysfs_ioapic_data {
-	struct sys_device dev;
-	struct IO_APIC_route_entry entry[0];
-};
-static struct sysfs_ioapic_data * mp_ioapic_data[MAX_IO_APICS];
+static struct IO_APIC_route_entry *ioapic_saved_data[MAX_IO_APICS];
 
-static int ioapic_suspend(struct sys_device *dev, pm_message_t state)
+static void suspend_ioapic(int ioapic_id)
 {
-	struct IO_APIC_route_entry *entry;
-	struct sysfs_ioapic_data *data;
+	struct IO_APIC_route_entry *saved_data = ioapic_saved_data[ioapic_id];
 	int i;
 
-	data = container_of(dev, struct sysfs_ioapic_data, dev);
-	entry = data->entry;
-	for (i = 0; i < nr_ioapic_registers[dev->id]; i ++, entry ++ )
-		*entry = ioapic_read_entry(dev->id, i);
+	if (!saved_data)
+		return;
+
+	for (i = 0; i < nr_ioapic_registers[ioapic_id]; i++)
+		saved_data[i] = ioapic_read_entry(ioapic_id, i);
+}
+
+static int ioapic_suspend(void)
+{
+	int ioapic_id;
+
+	for (ioapic_id = 0; ioapic_id < nr_ioapics; ioapic_id++)
+		suspend_ioapic(ioapic_id);
 
 	return 0;
 }
 
-static int ioapic_resume(struct sys_device *dev)
+static void resume_ioapic(int ioapic_id)
 {
-	struct IO_APIC_route_entry *entry;
-	struct sysfs_ioapic_data *data;
+	struct IO_APIC_route_entry *saved_data = ioapic_saved_data[ioapic_id];
 	unsigned long flags;
 	union IO_APIC_reg_00 reg_00;
 	int i;
 
-	data = container_of(dev, struct sysfs_ioapic_data, dev);
-	entry = data->entry;
+	if (!saved_data)
+		return;
 
 	raw_spin_lock_irqsave(&ioapic_lock, flags);
-	reg_00.raw = io_apic_read(dev->id, 0);
-	if (reg_00.bits.ID != mp_ioapics[dev->id].apicid) {
-		reg_00.bits.ID = mp_ioapics[dev->id].apicid;
-		io_apic_write(dev->id, 0, reg_00.raw);
+	reg_00.raw = io_apic_read(ioapic_id, 0);
+	if (reg_00.bits.ID != mp_ioapics[ioapic_id].apicid) {
+		reg_00.bits.ID = mp_ioapics[ioapic_id].apicid;
+		io_apic_write(ioapic_id, 0, reg_00.raw);
 	}
 	raw_spin_unlock_irqrestore(&ioapic_lock, flags);
-	for (i = 0; i < nr_ioapic_registers[dev->id]; i++)
-		ioapic_write_entry(dev->id, i, entry[i]);
+	for (i = 0; i < nr_ioapic_registers[ioapic_id]; i++)
+		ioapic_write_entry(ioapic_id, i, saved_data[i]);
+}
 
-	return 0;
+static void ioapic_resume(void)
+{
+	int ioapic_id;
+
+	for (ioapic_id = nr_ioapics - 1; ioapic_id >= 0; ioapic_id--)
+		resume_ioapic(ioapic_id);
 }
 
-static struct sysdev_class ioapic_sysdev_class = {
-	.name = "ioapic",
+static struct syscore_ops ioapic_syscore_ops = {
 	.suspend = ioapic_suspend,
 	.resume = ioapic_resume,
 };
 
-static int __init ioapic_init_sysfs(void)
+static int __init ioapic_init_ops(void)
 {
-	struct sys_device * dev;
-	int i, size, error;
+	int i;
 
-	error = sysdev_class_register(&ioapic_sysdev_class);
-	if (error)
-		return error;
+	for (i = 0; i < nr_ioapics; i++) {
+		unsigned int size;
 
-	for (i = 0; i < nr_ioapics; i++ ) {
-		size = sizeof(struct sys_device) + nr_ioapic_registers[i]
+		size = nr_ioapic_registers[i]
 			* sizeof(struct IO_APIC_route_entry);
-		mp_ioapic_data[i] = kzalloc(size, GFP_KERNEL);
-		if (!mp_ioapic_data[i]) {
-			printk(KERN_ERR "Can't suspend/resume IOAPIC %d\n", i);
-			continue;
-		}
-		dev = &mp_ioapic_data[i]->dev;
-		dev->id = i;
-		dev->cls = &ioapic_sysdev_class;
-		error = sysdev_register(dev);
-		if (error) {
-			kfree(mp_ioapic_data[i]);
-			mp_ioapic_data[i] = NULL;
-			printk(KERN_ERR "Can't suspend/resume IOAPIC %d\n", i);
-			continue;
-		}
+		ioapic_saved_data[i] = kzalloc(size, GFP_KERNEL);
+		if (!ioapic_saved_data[i])
+			pr_err("IOAPIC %d: suspend/resume impossible!\n", i);
 	}
 
+	register_syscore_ops(&ioapic_syscore_ops);
+
 	return 0;
 }
 
-device_initcall(ioapic_init_sysfs);
+device_initcall(ioapic_init_ops);
 
 /*
  * Dynamic irq allocate and deallocation
diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c
index 3c289281394c..33b10a0fc095 100644
--- a/arch/x86/kernel/apic/x2apic_uv_x.c
+++ b/arch/x86/kernel/apic/x2apic_uv_x.c
@@ -23,6 +23,8 @@
 #include <linux/io.h>
 #include <linux/pci.h>
 #include <linux/kdebug.h>
+#include <linux/delay.h>
+#include <linux/crash_dump.h>
 
 #include <asm/uv/uv_mmrs.h>
 #include <asm/uv/uv_hub.h>
@@ -34,6 +36,7 @@
 #include <asm/ipi.h>
 #include <asm/smp.h>
 #include <asm/x86_init.h>
+#include <asm/emergency-restart.h>
 
 DEFINE_PER_CPU(int, x2apic_extra_bits);
 
@@ -810,4 +813,11 @@ void __init uv_system_init(void)
 
 	/* register Legacy VGA I/O redirection handler */
 	pci_register_set_vga_state(uv_set_vga_state);
+
+	/*
+	 * For a kdump kernel the reset must be BOOT_ACPI, not BOOT_EFI, as
+	 * EFI is not enabled in the kdump kernel.
+	 */
+	if (is_kdump_kernel())
+		reboot_type = BOOT_ACPI;
 }
diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c
index ab1122998dba..3385ea26f684 100644
--- a/arch/x86/kernel/cpu/mcheck/mce.c
+++ b/arch/x86/kernel/cpu/mcheck/mce.c
@@ -21,6 +21,7 @@
 #include <linux/percpu.h>
 #include <linux/string.h>
 #include <linux/sysdev.h>
+#include <linux/syscore_ops.h>
 #include <linux/delay.h>
 #include <linux/ctype.h>
 #include <linux/sched.h>
@@ -1625,7 +1626,7 @@ out:
 static unsigned int mce_poll(struct file *file, poll_table *wait)
 {
 	poll_wait(file, &mce_wait, wait);
-	if (rcu_dereference_check_mce(mcelog.next))
+	if (rcu_access_index(mcelog.next))
 		return POLLIN | POLLRDNORM;
 	if (!mce_apei_read_done && apei_check_mce())
 		return POLLIN | POLLRDNORM;
@@ -1749,14 +1750,14 @@ static int mce_disable_error_reporting(void)
 	return 0;
 }
 
-static int mce_suspend(struct sys_device *dev, pm_message_t state)
+static int mce_suspend(void)
 {
 	return mce_disable_error_reporting();
 }
 
-static int mce_shutdown(struct sys_device *dev)
+static void mce_shutdown(void)
 {
-	return mce_disable_error_reporting();
+	mce_disable_error_reporting();
 }
 
 /*
@@ -1764,14 +1765,18 @@ static int mce_shutdown(struct sys_device *dev)
  * Only one CPU is active at this time, the others get re-added later using
  * CPU hotplug:
  */
-static int mce_resume(struct sys_device *dev)
+static void mce_resume(void)
 {
 	__mcheck_cpu_init_generic();
 	__mcheck_cpu_init_vendor(__this_cpu_ptr(&cpu_info));
-
-	return 0;
 }
 
+static struct syscore_ops mce_syscore_ops = {
+	.suspend	= mce_suspend,
+	.shutdown	= mce_shutdown,
+	.resume		= mce_resume,
+};
+
 static void mce_cpu_restart(void *data)
 {
 	del_timer_sync(&__get_cpu_var(mce_timer));
@@ -1808,9 +1813,6 @@ static void mce_enable_ce(void *all)
 }
 
 static struct sysdev_class mce_sysclass = {
-	.suspend	= mce_suspend,
-	.shutdown	= mce_shutdown,
-	.resume		= mce_resume,
 	.name		= "machinecheck",
 };
 
@@ -2139,6 +2141,7 @@ static __init int mcheck_init_device(void)
 			return err;
 	}
 
+	register_syscore_ops(&mce_syscore_ops);
 	register_hotcpu_notifier(&mce_cpu_notifier);
 	misc_register(&mce_log_device);
 
diff --git a/arch/x86/kernel/cpu/mtrr/main.c b/arch/x86/kernel/cpu/mtrr/main.c
index bebabec5b448..929739a653d1 100644
--- a/arch/x86/kernel/cpu/mtrr/main.c
+++ b/arch/x86/kernel/cpu/mtrr/main.c
@@ -45,6 +45,7 @@
 #include <linux/cpu.h>
 #include <linux/pci.h>
 #include <linux/smp.h>
+#include <linux/syscore_ops.h>
 
 #include <asm/processor.h>
 #include <asm/e820.h>
@@ -292,14 +293,24 @@ set_mtrr(unsigned int reg, unsigned long base, unsigned long size, mtrr_type typ
 
 	/*
 	 * HACK!
-	 * We use this same function to initialize the mtrrs on boot.
-	 * The state of the boot cpu's mtrrs has been saved, and we want
-	 * to replicate across all the APs.
-	 * If we're doing that @reg is set to something special...
+	 *
+	 * We use this same function to initialize the mtrrs during boot,
+	 * resume, runtime cpu online and on an explicit request to set a
+	 * specific MTRR.
+	 *
+	 * During boot or suspend, the state of the boot cpu's mtrrs has been
+	 * saved, and we want to replicate that across all the cpus that come
+	 * online (either at the end of boot or resume or during a runtime cpu
+	 * online). If we're doing that, @reg is set to something special and on
+	 * this cpu we still do mtrr_if->set_all(). During boot/resume, this
+	 * is unnecessary if at this point we are still on the cpu that started
+	 * the boot/resume sequence. But there is no guarantee that we are still
+	 * on the same cpu. So we do mtrr_if->set_all() on this cpu aswell to be
+	 * sure that we are in sync with everyone else.
 	 */
 	if (reg != ~0U)
 		mtrr_if->set(reg, base, size, type);
-	else if (!mtrr_aps_delayed_init)
+	else
 		mtrr_if->set_all();
 
 	/* Wait for the others */
@@ -630,7 +641,7 @@ struct mtrr_value {
 
 static struct mtrr_value mtrr_value[MTRR_MAX_VAR_RANGES];
 
-static int mtrr_save(struct sys_device *sysdev, pm_message_t state)
+static int mtrr_save(void)
 {
 	int i;
 
@@ -642,7 +653,7 @@ static int mtrr_save(struct sys_device *sysdev, pm_message_t state)
 	return 0;
 }
 
-static int mtrr_restore(struct sys_device *sysdev)
+static void mtrr_restore(void)
 {
 	int i;
 
@@ -653,12 +664,11 @@ static int mtrr_restore(struct sys_device *sysdev)
 				    mtrr_value[i].ltype);
 		}
 	}
-	return 0;
 }
 
 
 
-static struct sysdev_driver mtrr_sysdev_driver = {
+static struct syscore_ops mtrr_syscore_ops = {
 	.suspend	= mtrr_save,
 	.resume		= mtrr_restore,
 };
@@ -839,7 +849,7 @@ static int __init mtrr_init_finialize(void)
 	 * TBD: is there any system with such CPU which supports
 	 * suspend/resume? If no, we should remove the code.
 	 */
-	sysdev_driver_register(&cpu_sysdev_class, &mtrr_sysdev_driver);
+	register_syscore_ops(&mtrr_syscore_ops);
 
 	return 0;
 }
diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c
index 87eab4a27dfc..eed3673a8656 100644
--- a/arch/x86/kernel/cpu/perf_event.c
+++ b/arch/x86/kernel/cpu/perf_event.c
@@ -500,12 +500,17 @@ static bool check_hw_exists(void)
 	return true;
 
 bios_fail:
-	printk(KERN_CONT "Broken BIOS detected, using software events only.\n");
+	/*
+	 * We still allow the PMU driver to operate:
+	 */
+	printk(KERN_CONT "Broken BIOS detected, complain to your hardware vendor.\n");
 	printk(KERN_ERR FW_BUG "the BIOS has corrupted hw-PMU resources (MSR %x is %Lx)\n", reg, val);
-	return false;
+
+	return true;
 
 msr_fail:
 	printk(KERN_CONT "Broken PMU hardware detected, using software events only.\n");
+
 	return false;
 }
 
@@ -912,7 +917,7 @@ static inline void x86_assign_hw_event(struct perf_event *event,
 		hwc->event_base	= 0;
 	} else if (hwc->idx >= X86_PMC_IDX_FIXED) {
 		hwc->config_base = MSR_ARCH_PERFMON_FIXED_CTR_CTRL;
-		hwc->event_base = MSR_ARCH_PERFMON_FIXED_CTR0;
+		hwc->event_base = MSR_ARCH_PERFMON_FIXED_CTR0 + (hwc->idx - X86_PMC_IDX_FIXED);
 	} else {
 		hwc->config_base = x86_pmu_config_addr(hwc->idx);
 		hwc->event_base  = x86_pmu_event_addr(hwc->idx);
diff --git a/arch/x86/kernel/cpu/perf_event_p4.c b/arch/x86/kernel/cpu/perf_event_p4.c
index 0811f5ebfba6..c2520e178d32 100644
--- a/arch/x86/kernel/cpu/perf_event_p4.c
+++ b/arch/x86/kernel/cpu/perf_event_p4.c
@@ -777,6 +777,7 @@ static inline int p4_pmu_clear_cccr_ovf(struct hw_perf_event *hwc)
 	 * the counter has reached zero value and continued counting before
 	 * real NMI signal was received:
 	 */
+	rdmsrl(hwc->event_base, v);
 	if (!(v & ARCH_P4_UNFLAGGED_BIT))
 		return 1;
 
diff --git a/arch/x86/kernel/devicetree.c b/arch/x86/kernel/devicetree.c
index 7a8cebc9ff29..706a9fb46a58 100644
--- a/arch/x86/kernel/devicetree.c
+++ b/arch/x86/kernel/devicetree.c
@@ -65,12 +65,10 @@ unsigned int irq_create_of_mapping(struct device_node *controller,
 		return 0;
 	ret = ih->xlate(ih, intspec, intsize, &virq, &type);
 	if (ret)
-		return ret;
+		return 0;
 	if (type == IRQ_TYPE_NONE)
 		return virq;
-	/* set the mask if it is different from current */
-	if (type == (irq_to_desc(virq)->status & IRQF_TRIGGER_MASK))
-		set_irq_type(virq, type);
+	irq_set_irq_type(virq, type);
 	return virq;
 }
 EXPORT_SYMBOL_GPL(irq_create_of_mapping);
diff --git a/arch/x86/kernel/dumpstack.c b/arch/x86/kernel/dumpstack.c
index 81ac6c78c01c..e2a3f0606da4 100644
--- a/arch/x86/kernel/dumpstack.c
+++ b/arch/x86/kernel/dumpstack.c
@@ -27,7 +27,7 @@ static int die_counter;
 
 void printk_address(unsigned long address, int reliable)
 {
-	printk(" [<%p>] %s%pS\n", (void *) address,
+	printk(" [<%p>] %s%pB\n", (void *) address,
 			reliable ? "" : "? ", (void *) address);
 }
 
diff --git a/arch/x86/kernel/i8237.c b/arch/x86/kernel/i8237.c
index b42ca694dc68..8eeaa81de066 100644
--- a/arch/x86/kernel/i8237.c
+++ b/arch/x86/kernel/i8237.c
@@ -10,7 +10,7 @@
  */
 
 #include <linux/init.h>
-#include <linux/sysdev.h>
+#include <linux/syscore_ops.h>
 
 #include <asm/dma.h>
 
@@ -21,7 +21,7 @@
  * in asm/dma.h.
  */
 
-static int i8237A_resume(struct sys_device *dev)
+static void i8237A_resume(void)
 {
 	unsigned long flags;
 	int i;
@@ -41,31 +41,15 @@ static int i8237A_resume(struct sys_device *dev)
 	enable_dma(4);
 
 	release_dma_lock(flags);
-
-	return 0;
 }
 
-static int i8237A_suspend(struct sys_device *dev, pm_message_t state)
-{
-	return 0;
-}
-
-static struct sysdev_class i8237_sysdev_class = {
-	.name		= "i8237",
-	.suspend	= i8237A_suspend,
+static struct syscore_ops i8237_syscore_ops = {
 	.resume		= i8237A_resume,
 };
 
-static struct sys_device device_i8237A = {
-	.id		= 0,
-	.cls		= &i8237_sysdev_class,
-};
-
-static int __init i8237A_init_sysfs(void)
+static int __init i8237A_init_ops(void)
 {
-	int error = sysdev_class_register(&i8237_sysdev_class);
-	if (!error)
-		error = sysdev_register(&device_i8237A);
-	return error;
+	register_syscore_ops(&i8237_syscore_ops);
+	return 0;
 }
-device_initcall(i8237A_init_sysfs);
+device_initcall(i8237A_init_ops);
diff --git a/arch/x86/kernel/i8259.c b/arch/x86/kernel/i8259.c
index d9ca749c123b..65b8f5c2eebf 100644
--- a/arch/x86/kernel/i8259.c
+++ b/arch/x86/kernel/i8259.c
@@ -8,7 +8,7 @@
 #include <linux/random.h>
 #include <linux/init.h>
 #include <linux/kernel_stat.h>
-#include <linux/sysdev.h>
+#include <linux/syscore_ops.h>
 #include <linux/bitops.h>
 #include <linux/acpi.h>
 #include <linux/io.h>
@@ -245,20 +245,19 @@ static void save_ELCR(char *trigger)
 	trigger[1] = inb(0x4d1) & 0xDE;
 }
 
-static int i8259A_resume(struct sys_device *dev)
+static void i8259A_resume(void)
 {
 	init_8259A(i8259A_auto_eoi);
 	restore_ELCR(irq_trigger);
-	return 0;
 }
 
-static int i8259A_suspend(struct sys_device *dev, pm_message_t state)
+static int i8259A_suspend(void)
 {
 	save_ELCR(irq_trigger);
 	return 0;
 }
 
-static int i8259A_shutdown(struct sys_device *dev)
+static void i8259A_shutdown(void)
 {
 	/* Put the i8259A into a quiescent state that
 	 * the kernel initialization code can get it
@@ -266,21 +265,14 @@ static int i8259A_shutdown(struct sys_device *dev)
 	 */
 	outb(0xff, PIC_MASTER_IMR);	/* mask all of 8259A-1 */
 	outb(0xff, PIC_SLAVE_IMR);	/* mask all of 8259A-1 */
-	return 0;
 }
 
-static struct sysdev_class i8259_sysdev_class = {
-	.name = "i8259",
+static struct syscore_ops i8259_syscore_ops = {
 	.suspend = i8259A_suspend,
 	.resume = i8259A_resume,
 	.shutdown = i8259A_shutdown,
 };
 
-static struct sys_device device_i8259A = {
-	.id	= 0,
-	.cls	= &i8259_sysdev_class,
-};
-
 static void mask_8259A(void)
 {
 	unsigned long flags;
@@ -399,17 +391,12 @@ struct legacy_pic default_legacy_pic = {
 
 struct legacy_pic *legacy_pic = &default_legacy_pic;
 
-static int __init i8259A_init_sysfs(void)
+static int __init i8259A_init_ops(void)
 {
-	int error;
-
-	if (legacy_pic != &default_legacy_pic)
-		return 0;
+	if (legacy_pic == &default_legacy_pic)
+		register_syscore_ops(&i8259_syscore_ops);
 
-	error = sysdev_class_register(&i8259_sysdev_class);
-	if (!error)
-		error = sysdev_register(&device_i8259A);
-	return error;
+	return 0;
 }
 
-device_initcall(i8259A_init_sysfs);
+device_initcall(i8259A_init_ops);
diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c
index 948a31eae75f..1cb0b9fc78dc 100644
--- a/arch/x86/kernel/irq.c
+++ b/arch/x86/kernel/irq.c
@@ -8,6 +8,7 @@
 #include <linux/seq_file.h>
 #include <linux/smp.h>
 #include <linux/ftrace.h>
+#include <linux/delay.h>
 
 #include <asm/apic.h>
 #include <asm/io_apic.h>
diff --git a/arch/x86/kernel/kgdb.c b/arch/x86/kernel/kgdb.c
index dba0b36941a5..5f9ecff328b5 100644
--- a/arch/x86/kernel/kgdb.c
+++ b/arch/x86/kernel/kgdb.c
@@ -121,8 +121,8 @@ char *dbg_get_reg(int regno, void *mem, struct pt_regs *regs)
 		memcpy(mem, (void *)regs + dbg_reg_def[regno].offset,
 		       dbg_reg_def[regno].size);
 
-	switch (regno) {
 #ifdef CONFIG_X86_32
+	switch (regno) {
 	case GDB_SS:
 		if (!user_mode_vm(regs))
 			*(unsigned long *)mem = __KERNEL_DS;
@@ -135,8 +135,8 @@ char *dbg_get_reg(int regno, void *mem, struct pt_regs *regs)
 	case GDB_FS:
 		*(unsigned long *)mem = 0xFFFF;
 		break;
-#endif
 	}
+#endif
 	return dbg_reg_def[regno].name;
 }
 
diff --git a/arch/x86/kernel/microcode_core.c b/arch/x86/kernel/microcode_core.c
index 87af68e0e1e1..f9242800bc84 100644
--- a/arch/x86/kernel/microcode_core.c
+++ b/arch/x86/kernel/microcode_core.c
@@ -82,6 +82,7 @@
 #include <linux/cpu.h>
 #include <linux/fs.h>
 #include <linux/mm.h>
+#include <linux/syscore_ops.h>
 
 #include <asm/microcode.h>
 #include <asm/processor.h>
@@ -438,33 +439,25 @@ static int mc_sysdev_remove(struct sys_device *sys_dev)
 	return 0;
 }
 
-static int mc_sysdev_resume(struct sys_device *dev)
+static struct sysdev_driver mc_sysdev_driver = {
+	.add			= mc_sysdev_add,
+	.remove			= mc_sysdev_remove,
+};
+
+/**
+ * mc_bp_resume - Update boot CPU microcode during resume.
+ */
+static void mc_bp_resume(void)
 {
-	int cpu = dev->id;
+	int cpu = smp_processor_id();
 	struct ucode_cpu_info *uci = ucode_cpu_info + cpu;
 
-	if (!cpu_online(cpu))
-		return 0;
-
-	/*
-	 * All non-bootup cpus are still disabled,
-	 * so only CPU 0 will apply ucode here.
-	 *
-	 * Moreover, there can be no concurrent
-	 * updates from any other places at this point.
-	 */
-	WARN_ON(cpu != 0);
-
 	if (uci->valid && uci->mc)
 		microcode_ops->apply_microcode(cpu);
-
-	return 0;
 }
 
-static struct sysdev_driver mc_sysdev_driver = {
-	.add			= mc_sysdev_add,
-	.remove			= mc_sysdev_remove,
-	.resume			= mc_sysdev_resume,
+static struct syscore_ops mc_syscore_ops = {
+	.resume			= mc_bp_resume,
 };
 
 static __cpuinit int
@@ -542,6 +535,7 @@ static int __init microcode_init(void)
 	if (error)
 		return error;
 
+	register_syscore_ops(&mc_syscore_ops);
 	register_hotcpu_notifier(&mc_cpu_notifier);
 
 	pr_info("Microcode Update Driver: v" MICROCODE_VERSION
@@ -556,6 +550,7 @@ static void __exit microcode_exit(void)
 	microcode_dev_exit();
 
 	unregister_hotcpu_notifier(&mc_cpu_notifier);
+	unregister_syscore_ops(&mc_syscore_ops);
 
 	get_online_cpus();
 	mutex_lock(&microcode_mutex);
diff --git a/arch/x86/kernel/mpparse.c b/arch/x86/kernel/mpparse.c
index 6f789a887c06..5a532ce646bf 100644
--- a/arch/x86/kernel/mpparse.c
+++ b/arch/x86/kernel/mpparse.c
@@ -714,10 +714,6 @@ static void __init check_irq_src(struct mpc_intsrc *m, int *nr_m_spare)
 		*nr_m_spare += 1;
 	}
 }
-#else /* CONFIG_X86_IO_APIC */
-static
-inline void __init check_irq_src(struct mpc_intsrc *m, int *nr_m_spare) {}
-#endif /* CONFIG_X86_IO_APIC */
 
 static int
 check_slot(unsigned long mpc_new_phys, unsigned long mpc_new_length, int count)
@@ -731,6 +727,10 @@ check_slot(unsigned long mpc_new_phys, unsigned long mpc_new_length, int count)
 
 	return ret;
 }
+#else /* CONFIG_X86_IO_APIC */
+static
+inline void __init check_irq_src(struct mpc_intsrc *m, int *nr_m_spare) {}
+#endif /* CONFIG_X86_IO_APIC */
 
 static int  __init replace_intsrc_all(struct mpc_table *mpc,
 					unsigned long mpc_new_phys,
diff --git a/arch/x86/kernel/pci-gart_64.c b/arch/x86/kernel/pci-gart_64.c
index c01ffa5b9b87..82ada01625b9 100644
--- a/arch/x86/kernel/pci-gart_64.c
+++ b/arch/x86/kernel/pci-gart_64.c
@@ -27,7 +27,7 @@
 #include <linux/kdebug.h>
 #include <linux/scatterlist.h>
 #include <linux/iommu-helper.h>
-#include <linux/sysdev.h>
+#include <linux/syscore_ops.h>
 #include <linux/io.h>
 #include <linux/gfp.h>
 #include <asm/atomic.h>
@@ -589,7 +589,7 @@ void set_up_gart_resume(u32 aper_order, u32 aper_alloc)
 	aperture_alloc = aper_alloc;
 }
 
-static void gart_fixup_northbridges(struct sys_device *dev)
+static void gart_fixup_northbridges(void)
 {
 	int i;
 
@@ -613,33 +613,20 @@ static void gart_fixup_northbridges(struct sys_device *dev)
 	}
 }
 
-static int gart_resume(struct sys_device *dev)
+static void gart_resume(void)
 {
 	pr_info("PCI-DMA: Resuming GART IOMMU\n");
 
-	gart_fixup_northbridges(dev);
+	gart_fixup_northbridges();
 
 	enable_gart_translations();
-
-	return 0;
 }
 
-static int gart_suspend(struct sys_device *dev, pm_message_t state)
-{
-	return 0;
-}
-
-static struct sysdev_class gart_sysdev_class = {
-	.name		= "gart",
-	.suspend	= gart_suspend,
+static struct syscore_ops gart_syscore_ops = {
 	.resume		= gart_resume,
 
 };
 
-static struct sys_device device_gart = {
-	.cls		= &gart_sysdev_class,
-};
-
 /*
  * Private Northbridge GATT initialization in case we cannot use the
  * AGP driver for some reason.
@@ -650,7 +637,7 @@ static __init int init_amd_gatt(struct agp_kern_info *info)
 	unsigned aper_base, new_aper_base;
 	struct pci_dev *dev;
 	void *gatt;
-	int i, error;
+	int i;
 
 	pr_info("PCI-DMA: Disabling AGP.\n");
 
@@ -685,12 +672,7 @@ static __init int init_amd_gatt(struct agp_kern_info *info)
 
 	agp_gatt_table = gatt;
 
-	error = sysdev_class_register(&gart_sysdev_class);
-	if (!error)
-		error = sysdev_register(&device_gart);
-	if (error)
-		panic("Could not register gart_sysdev -- "
-		      "would corrupt data on next suspend");
+	register_syscore_ops(&gart_syscore_ops);
 
 	flush_gart();
 
diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
index d3ce37edb54d..08c44b08bf5b 100644
--- a/arch/x86/kernel/reboot.c
+++ b/arch/x86/kernel/reboot.c
@@ -6,6 +6,7 @@
 #include <linux/dmi.h>
 #include <linux/sched.h>
 #include <linux/tboot.h>
+#include <linux/delay.h>
 #include <acpi/reboot.h>
 #include <asm/io.h>
 #include <asm/apic.h>
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index 5a0484a95ad6..4be9b398470e 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -976,6 +976,11 @@ void __init setup_arch(char **cmdline_p)
 	paging_init();
 	x86_init.paging.pagetable_setup_done(swapper_pg_dir);
 
+	if (boot_cpu_data.cpuid_level >= 0) {
+		/* A CPU has %cr4 if and only if it has CPUID */
+		mmu_cr4_features = read_cr4();
+	}
+
 #ifdef CONFIG_X86_32
 	/* sync back kernel address range */
 	clone_pgd_range(initial_page_table + KERNEL_PGD_BOUNDARY,
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 58f517b59645..934b4c6b0bf9 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -2395,9 +2395,9 @@ static void do_cpuid_ent(struct kvm_cpuid_entry2 *entry, u32 function,
 		int i;
 
 		entry->flags |= KVM_CPUID_FLAG_SIGNIFCANT_INDEX;
-		for (i = 1; *nent < maxnent; ++i) {
-			if (entry[i - 1].eax == 0 && i != 2)
-				break;
+		for (i = 1; *nent < maxnent && i < 64; ++i) {
+			if (entry[i].eax == 0)
+				continue;
 			do_cpuid_1_ent(&entry[i], function, i);
 			entry[i].flags |=
 			       KVM_CPUID_FLAG_SIGNIFCANT_INDEX;
@@ -4958,12 +4958,6 @@ struct kvm_cpuid_entry2 *kvm_find_cpuid_entry(struct kvm_vcpu *vcpu,
 			best = e;
 			break;
 		}
-		/*
-		 * Both basic or both extended?
-		 */
-		if (((e->function ^ function) & 0x80000000) == 0)
-			if (!best || e->function > best->function)
-				best = e;
 	}
 	return best;
 }
@@ -4983,6 +4977,27 @@ not_found:
 	return 36;
 }
 
+/*
+ * If no match is found, check whether we exceed the vCPU's limit
+ * and return the content of the highest valid _standard_ leaf instead.
+ * This is to satisfy the CPUID specification.
+ */
+static struct kvm_cpuid_entry2* check_cpuid_limit(struct kvm_vcpu *vcpu,
+                                                  u32 function, u32 index)
+{
+	struct kvm_cpuid_entry2 *maxlevel;
+
+	maxlevel = kvm_find_cpuid_entry(vcpu, function & 0x80000000, 0);
+	if (!maxlevel || maxlevel->eax >= function)
+		return NULL;
+	if (function & 0x80000000) {
+		maxlevel = kvm_find_cpuid_entry(vcpu, 0, 0);
+		if (!maxlevel)
+			return NULL;
+	}
+	return kvm_find_cpuid_entry(vcpu, maxlevel->eax, index);
+}
+
 void kvm_emulate_cpuid(struct kvm_vcpu *vcpu)
 {
 	u32 function, index;
@@ -4995,6 +5010,10 @@ void kvm_emulate_cpuid(struct kvm_vcpu *vcpu)
 	kvm_register_write(vcpu, VCPU_REGS_RCX, 0);
 	kvm_register_write(vcpu, VCPU_REGS_RDX, 0);
 	best = kvm_find_cpuid_entry(vcpu, function, index);
+
+	if (!best)
+		best = check_cpuid_limit(vcpu, function, index);
+
 	if (best) {
 		kvm_register_write(vcpu, VCPU_REGS_RAX, best->eax);
 		kvm_register_write(vcpu, VCPU_REGS_RBX, best->ebx);
diff --git a/arch/x86/lib/cmpxchg16b_emu.S b/arch/x86/lib/cmpxchg16b_emu.S
index 3e8b08a6de2b..1e572c507d06 100644
--- a/arch/x86/lib/cmpxchg16b_emu.S
+++ b/arch/x86/lib/cmpxchg16b_emu.S
@@ -10,6 +10,12 @@
 #include <asm/frame.h>
 #include <asm/dwarf2.h>
 
+#ifdef CONFIG_SMP
+#define SEG_PREFIX %gs:
+#else
+#define SEG_PREFIX
+#endif
+
 .text
 
 /*
@@ -37,13 +43,13 @@ this_cpu_cmpxchg16b_emu:
 	pushf
 	cli
 
-	cmpq %gs:(%rsi), %rax
+	cmpq SEG_PREFIX(%rsi), %rax
 	jne not_same
-	cmpq %gs:8(%rsi), %rdx
+	cmpq SEG_PREFIX 8(%rsi), %rdx
 	jne not_same
 
-	movq %rbx, %gs:(%rsi)
-	movq %rcx, %gs:8(%rsi)
+	movq %rbx, SEG_PREFIX(%rsi)
+	movq %rcx, SEG_PREFIX 8(%rsi)
 
 	popf
 	mov $1, %al
diff --git a/arch/x86/mm/srat_32.c b/arch/x86/mm/srat_32.c
index 48651c6f657d..364f36bdfad8 100644
--- a/arch/x86/mm/srat_32.c
+++ b/arch/x86/mm/srat_32.c
@@ -211,10 +211,12 @@ int __init get_memcfg_from_srat(void)
 {
 	int i, j, nid;
 
-
 	if (srat_disabled())
 		goto out_fail;
 
+	if (acpi_numa_init() < 0)
+		goto out_fail;
+
 	if (num_memory_chunks == 0) {
 		printk(KERN_DEBUG
 			 "could not find any ACPI SRAT memory areas.\n");
diff --git a/arch/x86/oprofile/nmi_int.c b/arch/x86/oprofile/nmi_int.c
index e2b7b0c06cdf..cf9750004a08 100644
--- a/arch/x86/oprofile/nmi_int.c
+++ b/arch/x86/oprofile/nmi_int.c
@@ -15,7 +15,7 @@
 #include <linux/notifier.h>
 #include <linux/smp.h>
 #include <linux/oprofile.h>
-#include <linux/sysdev.h>
+#include <linux/syscore_ops.h>
 #include <linux/slab.h>
 #include <linux/moduleparam.h>
 #include <linux/kdebug.h>
@@ -49,6 +49,10 @@ u64 op_x86_get_ctrl(struct op_x86_model_spec const *model,
 	val |= counter_config->user ? ARCH_PERFMON_EVENTSEL_USR : 0;
 	val |= counter_config->kernel ? ARCH_PERFMON_EVENTSEL_OS : 0;
 	val |= (counter_config->unit_mask & 0xFF) << 8;
+	counter_config->extra &= (ARCH_PERFMON_EVENTSEL_INV |
+				  ARCH_PERFMON_EVENTSEL_EDGE |
+				  ARCH_PERFMON_EVENTSEL_CMASK);
+	val |= counter_config->extra;
 	event &= model->event_mask ? model->event_mask : 0xFF;
 	val |= event & 0xFF;
 	val |= (event & 0x0F00) << 24;
@@ -440,6 +444,7 @@ static int nmi_create_files(struct super_block *sb, struct dentry *root)
 		oprofilefs_create_ulong(sb, dir, "unit_mask", &counter_config[i].unit_mask);
 		oprofilefs_create_ulong(sb, dir, "kernel", &counter_config[i].kernel);
 		oprofilefs_create_ulong(sb, dir, "user", &counter_config[i].user);
+		oprofilefs_create_ulong(sb, dir, "extra", &counter_config[i].extra);
 	}
 
 	return 0;
@@ -536,7 +541,7 @@ static void nmi_shutdown(void)
 
 #ifdef CONFIG_PM
 
-static int nmi_suspend(struct sys_device *dev, pm_message_t state)
+static int nmi_suspend(void)
 {
 	/* Only one CPU left, just stop that one */
 	if (nmi_enabled == 1)
@@ -544,49 +549,31 @@ static int nmi_suspend(struct sys_device *dev, pm_message_t state)
 	return 0;
 }
 
-static int nmi_resume(struct sys_device *dev)
+static void nmi_resume(void)
 {
 	if (nmi_enabled == 1)
 		nmi_cpu_start(NULL);
-	return 0;
 }
 
-static struct sysdev_class oprofile_sysclass = {
-	.name		= "oprofile",
+static struct syscore_ops oprofile_syscore_ops = {
 	.resume		= nmi_resume,
 	.suspend	= nmi_suspend,
 };
 
-static struct sys_device device_oprofile = {
-	.id	= 0,
-	.cls	= &oprofile_sysclass,
-};
-
-static int __init init_sysfs(void)
+static void __init init_suspend_resume(void)
 {
-	int error;
-
-	error = sysdev_class_register(&oprofile_sysclass);
-	if (error)
-		return error;
-
-	error = sysdev_register(&device_oprofile);
-	if (error)
-		sysdev_class_unregister(&oprofile_sysclass);
-
-	return error;
+	register_syscore_ops(&oprofile_syscore_ops);
 }
 
-static void exit_sysfs(void)
+static void exit_suspend_resume(void)
 {
-	sysdev_unregister(&device_oprofile);
-	sysdev_class_unregister(&oprofile_sysclass);
+	unregister_syscore_ops(&oprofile_syscore_ops);
 }
 
 #else
 
-static inline int  init_sysfs(void) { return 0; }
-static inline void exit_sysfs(void) { }
+static inline void init_suspend_resume(void) { }
+static inline void exit_suspend_resume(void) { }
 
 #endif /* CONFIG_PM */
 
@@ -789,9 +776,7 @@ int __init op_nmi_init(struct oprofile_operations *ops)
 
 	mux_init(ops);
 
-	ret = init_sysfs();
-	if (ret)
-		return ret;
+	init_suspend_resume();
 
 	printk(KERN_INFO "oprofile: using NMI interrupt.\n");
 	return 0;
@@ -799,5 +784,5 @@ int __init op_nmi_init(struct oprofile_operations *ops)
 
 void op_nmi_exit(void)
 {
-	exit_sysfs();
+	exit_suspend_resume();
 }
diff --git a/arch/x86/oprofile/op_counter.h b/arch/x86/oprofile/op_counter.h
index e28398df0df2..0b7b7b179cbe 100644
--- a/arch/x86/oprofile/op_counter.h
+++ b/arch/x86/oprofile/op_counter.h
@@ -22,6 +22,7 @@ struct op_counter_config {
 	unsigned long kernel;
 	unsigned long user;
 	unsigned long unit_mask;
+	unsigned long extra;
 };
 
 extern struct op_counter_config counter_config[];
diff --git a/arch/x86/platform/mrst/vrtc.c b/arch/x86/platform/mrst/vrtc.c
index 04cf645feb92..73d70d65e76e 100644
--- a/arch/x86/platform/mrst/vrtc.c
+++ b/arch/x86/platform/mrst/vrtc.c
@@ -100,9 +100,11 @@ int vrtc_set_mmss(unsigned long nowtime)
 
 void __init mrst_rtc_init(void)
 {
-	unsigned long vrtc_paddr = sfi_mrtc_array[0].phys_addr;
+	unsigned long vrtc_paddr;
 
 	sfi_table_parse(SFI_SIG_MRTC, NULL, NULL, sfi_parse_mrtc);
+
+	vrtc_paddr = sfi_mrtc_array[0].phys_addr;
 	if (!sfi_mrtc_num || !vrtc_paddr)
 		return;
 
diff --git a/arch/x86/platform/olpc/olpc-xo1.c b/arch/x86/platform/olpc/olpc-xo1.c
index 99513642a0e6..ab81fb271760 100644
--- a/arch/x86/platform/olpc/olpc-xo1.c
+++ b/arch/x86/platform/olpc/olpc-xo1.c
@@ -72,9 +72,9 @@ static int __devinit olpc_xo1_probe(struct platform_device *pdev)
 		dev_err(&pdev->dev, "can't fetch device resource info\n");
 		return -EIO;
 	}
-	if (strcmp(pdev->name, "olpc-xo1-pms") == 0)
+	if (strcmp(pdev->name, "cs5535-pms") == 0)
 		pms_base = res->start;
-	else if (strcmp(pdev->name, "olpc-xo1-ac-acpi") == 0)
+	else if (strcmp(pdev->name, "olpc-xo1-pm-acpi") == 0)
 		acpi_base = res->start;
 
 	/* If we have both addresses, we can override the poweroff hook */
@@ -90,9 +90,9 @@ static int __devexit olpc_xo1_remove(struct platform_device *pdev)
 {
 	mfd_cell_disable(pdev);
 
-	if (strcmp(pdev->name, "olpc-xo1-pms") == 0)
+	if (strcmp(pdev->name, "cs5535-pms") == 0)
 		pms_base = 0;
-	else if (strcmp(pdev->name, "olpc-xo1-acpi") == 0)
+	else if (strcmp(pdev->name, "olpc-xo1-pm-acpi") == 0)
 		acpi_base = 0;
 
 	pm_power_off = NULL;
@@ -101,7 +101,7 @@ static int __devexit olpc_xo1_remove(struct platform_device *pdev)
 
 static struct platform_driver cs5535_pms_drv = {
 	.driver = {
-		.name = "olpc-xo1-pms",
+		.name = "cs5535-pms",
 		.owner = THIS_MODULE,
 	},
 	.probe = olpc_xo1_probe,
@@ -110,7 +110,7 @@ static struct platform_driver cs5535_pms_drv = {
 
 static struct platform_driver cs5535_acpi_drv = {
 	.driver = {
-		.name = "olpc-xo1-acpi",
+		.name = "olpc-xo1-pm-acpi",
 		.owner = THIS_MODULE,
 	},
 	.probe = olpc_xo1_probe,
@@ -121,22 +121,21 @@ static int __init olpc_xo1_init(void)
 {
 	int r;
 
-	r = mfd_shared_platform_driver_register(&cs5535_pms_drv, "cs5535-pms");
+	r = platform_driver_register(&cs5535_pms_drv);
 	if (r)
 		return r;
 
-	r = mfd_shared_platform_driver_register(&cs5535_acpi_drv,
-			"cs5535-acpi");
+	r = platform_driver_register(&cs5535_acpi_drv);
 	if (r)
-		mfd_shared_platform_driver_unregister(&cs5535_pms_drv);
+		platform_driver_unregister(&cs5535_pms_drv);
 
 	return r;
 }
 
 static void __exit olpc_xo1_exit(void)
 {
-	mfd_shared_platform_driver_unregister(&cs5535_acpi_drv);
-	mfd_shared_platform_driver_unregister(&cs5535_pms_drv);
+	platform_driver_unregister(&cs5535_acpi_drv);
+	platform_driver_unregister(&cs5535_pms_drv);
 }
 
 MODULE_AUTHOR("Daniel Drake <dsd@laptop.org>");
diff --git a/arch/x86/platform/uv/tlb_uv.c b/arch/x86/platform/uv/tlb_uv.c
index a7b38d35c29a..7cb6424317f6 100644
--- a/arch/x86/platform/uv/tlb_uv.c
+++ b/arch/x86/platform/uv/tlb_uv.c
@@ -11,6 +11,7 @@
 #include <linux/debugfs.h>
 #include <linux/kernel.h>
 #include <linux/slab.h>
+#include <linux/delay.h>
 
 #include <asm/mmu_context.h>
 #include <asm/uv/uv.h>
diff --git a/arch/x86/platform/visws/visws_quirks.c b/arch/x86/platform/visws/visws_quirks.c
index fe4cf8294878..c7abf13a213f 100644
--- a/arch/x86/platform/visws/visws_quirks.c
+++ b/arch/x86/platform/visws/visws_quirks.c
@@ -471,15 +471,7 @@ static unsigned int startup_piix4_master_irq(struct irq_data *data)
 {
 	legacy_pic->init(0);
 	enable_cobalt_irq(data);
-}
-
-static void end_piix4_master_irq(struct irq_data *data)
-{
-	unsigned long flags;
-
-	spin_lock_irqsave(&cobalt_lock, flags);
-	enable_cobalt_irq(data);
-	spin_unlock_irqrestore(&cobalt_lock, flags);
+	return 0;
 }
 
 static struct irq_chip piix4_master_irq_type = {
@@ -492,7 +484,7 @@ static void pii4_mask(struct irq_data *data) { }
 
 static struct irq_chip piix4_virtual_irq_type = {
 	.name		= "PIIX4-virtual",
-	.mask		= pii4_mask,
+	.irq_mask	= pii4_mask,
 };
 
 /*
@@ -580,9 +572,9 @@ static struct irqaction cascade_action = {
 
 static inline void set_piix4_virtual_irq_type(void)
 {
-	piix4_virtual_irq_type.enable =	i8259A_chip.unmask;
-	piix4_virtual_irq_type.disable = i8259A_chip.mask;
-	piix4_virtual_irq_type.unmask =	i8259A_chip.unmask;
+	piix4_virtual_irq_type.irq_enable = i8259A_chip.irq_unmask;
+	piix4_virtual_irq_type.irq_disable = i8259A_chip.irq_mask;
+	piix4_virtual_irq_type.irq_unmask = i8259A_chip.irq_unmask;
 }
 
 static void __init visws_pre_intr_init(void)
@@ -599,7 +591,7 @@ static void __init visws_pre_intr_init(void)
 		else if (i == CO_IRQ_IDE0)
 			chip = &cobalt_irq_type;
 		else if (i == CO_IRQ_IDE1)
-			>chip = &cobalt_irq_type;
+			chip = &cobalt_irq_type;
 		else if (i == CO_IRQ_8259)
 			chip = &piix4_master_irq_type;
 		else if (i < CO_IRQ_APIC0)
diff --git a/arch/x86/xen/p2m.c b/arch/x86/xen/p2m.c
index 215a3ce61068..141eb0de8b06 100644
--- a/arch/x86/xen/p2m.c
+++ b/arch/x86/xen/p2m.c
@@ -497,7 +497,7 @@ static bool alloc_p2m(unsigned long pfn)
 	return true;
 }
 
-bool __early_alloc_p2m(unsigned long pfn)
+static bool __init __early_alloc_p2m(unsigned long pfn)
 {
 	unsigned topidx, mididx, idx;
 
@@ -530,7 +530,7 @@ bool __early_alloc_p2m(unsigned long pfn)
 	}
 	return idx != 0;
 }
-unsigned long set_phys_range_identity(unsigned long pfn_s,
+unsigned long __init set_phys_range_identity(unsigned long pfn_s,
 				      unsigned long pfn_e)
 {
 	unsigned long pfn;
@@ -671,7 +671,9 @@ int m2p_add_override(unsigned long mfn, struct page *page)
 	page->private = mfn;
 	page->index = pfn_to_mfn(pfn);
 
-	__set_phys_to_machine(pfn, FOREIGN_FRAME(mfn));
+	if (unlikely(!set_phys_to_machine(pfn, FOREIGN_FRAME(mfn))))
+		return -ENOMEM;
+
 	if (!PageHighMem(page))
 		/* Just zap old mapping for now */
 		pte_clear(&init_mm, address, ptep);
@@ -709,7 +711,7 @@ int m2p_remove_override(struct page *page)
 	spin_lock_irqsave(&m2p_override_lock, flags);
 	list_del(&page->lru);
 	spin_unlock_irqrestore(&m2p_override_lock, flags);
-	__set_phys_to_machine(pfn, page->index);
+	set_phys_to_machine(pfn, page->index);
 
 	if (!PageHighMem(page))
 		set_pte_at(&init_mm, address, ptep,
diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig
index 72839190f503..7c275f5d0df0 100644
--- a/arch/xtensa/Kconfig
+++ b/arch/xtensa/Kconfig
@@ -7,6 +7,8 @@ config ZONE_DMA
 config XTENSA
 	def_bool y
 	select HAVE_IDE
+	select HAVE_GENERIC_HARDIRQS
+	select GENERIC_IRQ_SHOW
 	help
 	  Xtensa processors are 32-bit RISC machines designed by Tensilica
 	  primarily for embedded systems.  These processors are both
@@ -27,9 +29,6 @@ config GENERIC_FIND_BIT_LE
 config GENERIC_HWEIGHT
 	def_bool y
 
-config GENERIC_HARDIRQS
-	def_bool y
-
 config GENERIC_GPIO
 	def_bool y
 
diff --git a/arch/xtensa/include/asm/dma.h b/arch/xtensa/include/asm/dma.h
index 137ca3945b07..bb099a373b5a 100644
--- a/arch/xtensa/include/asm/dma.h
+++ b/arch/xtensa/include/asm/dma.h
@@ -37,7 +37,7 @@
  *	the size of the statically mapped kernel segment
  *	(XCHAL_KSEG_{CACHED,BYPASS}_SIZE), ie. 128 MB.
  *
- * NOTE: When the entire KSEG area is DMA capable, we substract
+ * NOTE: When the entire KSEG area is DMA capable, we subtract
  *	one from the max address so that the virt_to_phys() macro
  *	works correctly on the address (otherwise the address
  *	enters another area, and virt_to_phys() may not return
diff --git a/arch/xtensa/kernel/entry.S b/arch/xtensa/kernel/entry.S
index 5fd01f6aaf37..6223f3346b5c 100644
--- a/arch/xtensa/kernel/entry.S
+++ b/arch/xtensa/kernel/entry.S
@@ -1026,7 +1026,7 @@ ENTRY(fast_syscall_unrecoverable)
  * TRY	 adds an entry to the __ex_table fixup table for the immediately
  *	 following instruction.
  *
- * CATCH catches any exception that occurred at one of the preceeding TRY
+ * CATCH catches any exception that occurred at one of the preceding TRY
  *       statements and continues from there
  *
  * Usage TRY	l32i	a0, a1, 0
diff --git a/arch/xtensa/kernel/irq.c b/arch/xtensa/kernel/irq.c
index 87508886cbbd..d77089df412e 100644
--- a/arch/xtensa/kernel/irq.c
+++ b/arch/xtensa/kernel/irq.c
@@ -35,7 +35,6 @@ atomic_t irq_err_count;
 asmlinkage void do_IRQ(int irq, struct pt_regs *regs)
 {
 	struct pt_regs *old_regs = set_irq_regs(regs);
-	struct irq_desc *desc = irq_desc + irq;
 
 	if (irq >= NR_IRQS) {
 		printk(KERN_EMERG "%s: cannot handle IRQ %d\n",
@@ -57,104 +56,69 @@ asmlinkage void do_IRQ(int irq, struct pt_regs *regs)
 			       sp - sizeof(struct thread_info));
 	}
 #endif
-	desc->handle_irq(irq, desc);
+	generic_handle_irq(irq);
 
 	irq_exit();
 	set_irq_regs(old_regs);
 }
 
-/*
- * Generic, controller-independent functions:
- */
-
-int show_interrupts(struct seq_file *p, void *v)
+int arch_show_interrupts(struct seq_file *p, int prec)
 {
-	int i = *(loff_t *) v, j;
-	struct irqaction * action;
-	unsigned long flags;
-
-	if (i == 0) {
-		seq_printf(p, "           ");
-		for_each_online_cpu(j)
-			seq_printf(p, "CPU%d       ",j);
-		seq_putc(p, '\n');
-	}
-
-	if (i < NR_IRQS) {
-		raw_spin_lock_irqsave(&irq_desc[i].lock, flags);
-		action = irq_desc[i].action;
-		if (!action)
-			goto skip;
-		seq_printf(p, "%3d: ",i);
-#ifndef CONFIG_SMP
-		seq_printf(p, "%10u ", kstat_irqs(i));
-#else
-		for_each_online_cpu(j)
-			seq_printf(p, "%10u ", kstat_irqs_cpu(i, j));
-#endif
-		seq_printf(p, " %14s", irq_desc[i].chip->name);
-		seq_printf(p, "  %s", action->name);
-
-		for (action=action->next; action; action = action->next)
-			seq_printf(p, ", %s", action->name);
-
-		seq_putc(p, '\n');
-skip:
-		raw_spin_unlock_irqrestore(&irq_desc[i].lock, flags);
-	} else if (i == NR_IRQS) {
-		seq_printf(p, "NMI: ");
-		for_each_online_cpu(j)
-			seq_printf(p, "%10u ", nmi_count(j));
-		seq_putc(p, '\n');
-		seq_printf(p, "ERR: %10u\n", atomic_read(&irq_err_count));
-	}
+	int j;
+
+	seq_printf(p, "%*s: ", prec, "NMI");
+	for_each_online_cpu(j)
+		seq_printf(p, "%10u ", nmi_count(j));
+	seq_putc(p, '\n');
+	seq_printf(p, "%*s: ", prec, "ERR");
+	seq_printf(p, "%10u\n", atomic_read(&irq_err_count));
 	return 0;
 }
 
-static void xtensa_irq_mask(unsigned int irq)
+static void xtensa_irq_mask(struct irq_chip *d)
 {
-	cached_irq_mask &= ~(1 << irq);
+	cached_irq_mask &= ~(1 << d->irq);
 	set_sr (cached_irq_mask, INTENABLE);
 }
 
-static void xtensa_irq_unmask(unsigned int irq)
+static void xtensa_irq_unmask(struct irq_chip *d)
 {
-	cached_irq_mask |= 1 << irq;
+	cached_irq_mask |= 1 << d->irq;
 	set_sr (cached_irq_mask, INTENABLE);
 }
 
-static void xtensa_irq_enable(unsigned int irq)
+static void xtensa_irq_enable(struct irq_chip *d)
 {
-	variant_irq_enable(irq);
-	xtensa_irq_unmask(irq);
+	variant_irq_enable(d->irq);
+	xtensa_irq_unmask(d->irq);
 }
 
-static void xtensa_irq_disable(unsigned int irq)
+static void xtensa_irq_disable(struct irq_chip *d)
 {
-	xtensa_irq_mask(irq);
-	variant_irq_disable(irq);
+	xtensa_irq_mask(d->irq);
+	variant_irq_disable(d->irq);
 }
 
-static void xtensa_irq_ack(unsigned int irq)
+static void xtensa_irq_ack(struct irq_chip *d)
 {
-	set_sr(1 << irq, INTCLEAR);
+	set_sr(1 << d->irq, INTCLEAR);
 }
 
-static int xtensa_irq_retrigger(unsigned int irq)
+static int xtensa_irq_retrigger(struct irq_chip *d)
 {
-	set_sr (1 << irq, INTSET);
+	set_sr (1 << d->irq, INTSET);
 	return 1;
 }
 
 
 static struct irq_chip xtensa_irq_chip = {
 	.name		= "xtensa",
-	.enable		= xtensa_irq_enable,
-	.disable	= xtensa_irq_disable,
-	.mask		= xtensa_irq_mask,
-	.unmask		= xtensa_irq_unmask,
-	.ack		= xtensa_irq_ack,
-	.retrigger	= xtensa_irq_retrigger,
+	.irq_enable	= xtensa_irq_enable,
+	.irq_disable	= xtensa_irq_disable,
+	.irq_mask	= xtensa_irq_mask,
+	.irq_unmask	= xtensa_irq_unmask,
+	.irq_ack	= xtensa_irq_ack,
+	.irq_retrigger	= xtensa_irq_retrigger,
 };
 
 void __init init_IRQ(void)
@@ -165,25 +129,25 @@ void __init init_IRQ(void)
 		int mask = 1 << index;
 
 		if (mask & XCHAL_INTTYPE_MASK_SOFTWARE)
-			set_irq_chip_and_handler(index, &xtensa_irq_chip,
+			irq_set_chip_and_handler(index, &xtensa_irq_chip,
 						 handle_simple_irq);
 
 		else if (mask & XCHAL_INTTYPE_MASK_EXTERN_EDGE)
-			set_irq_chip_and_handler(index, &xtensa_irq_chip,
+			irq_set_chip_and_handler(index, &xtensa_irq_chip,
 						 handle_edge_irq);
 
 		else if (mask & XCHAL_INTTYPE_MASK_EXTERN_LEVEL)
-			set_irq_chip_and_handler(index, &xtensa_irq_chip,
+			irq_set_chip_and_handler(index, &xtensa_irq_chip,
 						 handle_level_irq);
 
 		else if (mask & XCHAL_INTTYPE_MASK_TIMER)
-			set_irq_chip_and_handler(index, &xtensa_irq_chip,
+			irq_set_chip_and_handler(index, &xtensa_irq_chip,
 						 handle_edge_irq);
 
 		else	/* XCHAL_INTTYPE_MASK_WRITE_ERROR */
 			/* XCHAL_INTTYPE_MASK_NMI */
 
-			set_irq_chip_and_handler(index, &xtensa_irq_chip,
+			irq_set_chip_and_handler(index, &xtensa_irq_chip,
 						 handle_level_irq);
 	}
 
diff --git a/arch/xtensa/platforms/s6105/device.c b/arch/xtensa/platforms/s6105/device.c
index 65333ffefb07..4f4fc971042f 100644
--- a/arch/xtensa/platforms/s6105/device.c
+++ b/arch/xtensa/platforms/s6105/device.c
@@ -120,7 +120,7 @@ static int __init prepare_phy_irq(int pin)
 	irq = gpio_to_irq(pin);
 	if (irq < 0)
 		goto free;
-	if (set_irq_type(irq, IRQ_TYPE_LEVEL_LOW) < 0)
+	if (irq_set_irq_type(irq, IRQ_TYPE_LEVEL_LOW) < 0)
 		goto free;
 	return irq;
 free:
diff --git a/arch/xtensa/variants/s6000/gpio.c b/arch/xtensa/variants/s6000/gpio.c
index 380a70fff756..7af0757e001b 100644
--- a/arch/xtensa/variants/s6000/gpio.c
+++ b/arch/xtensa/variants/s6000/gpio.c
@@ -85,30 +85,29 @@ int s6_gpio_init(u32 afsel)
 	return gpiochip_add(&gpiochip);
 }
 
-static void ack(unsigned int irq)
+static void ack(struct irq_data *d)
 {
-	writeb(1 << (irq - IRQ_BASE), S6_REG_GPIO + S6_GPIO_IC);
+	writeb(1 << (d->irq - IRQ_BASE), S6_REG_GPIO + S6_GPIO_IC);
 }
 
-static void mask(unsigned int irq)
+static void mask(struct irq_data *d)
 {
 	u8 r = readb(S6_REG_GPIO + S6_GPIO_IE);
-	r &= ~(1 << (irq - IRQ_BASE));
+	r &= ~(1 << (d->irq - IRQ_BASE));
 	writeb(r, S6_REG_GPIO + S6_GPIO_IE);
 }
 
-static void unmask(unsigned int irq)
+static void unmask(struct irq_data *d)
 {
 	u8 m = readb(S6_REG_GPIO + S6_GPIO_IE);
-	m |= 1 << (irq - IRQ_BASE);
+	m |= 1 << (d->irq - IRQ_BASE);
 	writeb(m, S6_REG_GPIO + S6_GPIO_IE);
 }
 
-static int set_type(unsigned int irq, unsigned int type)
+static int set_type(struct irq_data *d, unsigned int type)
 {
-	const u8 m = 1 << (irq - IRQ_BASE);
+	const u8 m = 1 << (d->irq - IRQ_BASE);
 	irq_flow_handler_t handler;
-	struct irq_desc *desc;
 	u8 reg;
 
 	if (type == IRQ_TYPE_PROBE) {
@@ -129,8 +128,7 @@ static int set_type(unsigned int irq, unsigned int type)
 		handler = handle_edge_irq;
 	}
 	writeb(reg, S6_REG_GPIO + S6_GPIO_BANK(0) + S6_GPIO_IS);
-	desc = irq_to_desc(irq);
-	desc->handle_irq = handler;
+	__irq_set_handler_locked(irq, handler);
 
 	reg = readb(S6_REG_GPIO + S6_GPIO_BANK(0) + S6_GPIO_IEV);
 	if (type & (IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_EDGE_RISING))
@@ -150,22 +148,23 @@ static int set_type(unsigned int irq, unsigned int type)
 
 static struct irq_chip gpioirqs = {
 	.name = "GPIO",
-	.ack = ack,
-	.mask = mask,
-	.unmask = unmask,
-	.set_type = set_type,
+	.irq_ack = ack,
+	.irq_mask = mask,
+	.irq_unmask = unmask,
+	.irq_set_type = set_type,
 };
 
 static u8 demux_masks[4];
 
 static void demux_irqs(unsigned int irq, struct irq_desc *desc)
 {
-	u8 *mask = get_irq_desc_data(desc);
+	struct irq_chip *chip = irq_desc_get_chip(desc);
+	u8 *mask = irq_desc_get_handler_data(desc);
 	u8 pending;
 	int cirq;
 
-	desc->chip->mask(irq);
-	desc->chip->ack(irq);
+	chip->irq_mask(&desc->irq_data);
+	chip->irq_ack(&desc->irq_data));
 	pending = readb(S6_REG_GPIO + S6_GPIO_BANK(0) + S6_GPIO_MIS) & *mask;
 	cirq = IRQ_BASE - 1;
 	while (pending) {
@@ -174,7 +173,7 @@ static void demux_irqs(unsigned int irq, struct irq_desc *desc)
 		pending >>= n;
 		generic_handle_irq(cirq);
 	}
-	desc->chip->unmask(irq);
+	chip->irq_unmask(&desc->irq_data));
 }
 
 extern const signed char *platform_irq_mappings[XTENSA_NR_IRQS];
@@ -219,11 +218,11 @@ void __init variant_init_irq(void)
 				i = ffs(mask);
 				cirq += i;
 				mask >>= i;
-				set_irq_chip(cirq, &gpioirqs);
-				set_irq_type(irq, IRQ_TYPE_LEVEL_LOW);
+				irq_set_chip(cirq, &gpioirqs);
+				irq_set_irq_type(irq, IRQ_TYPE_LEVEL_LOW);
 			} while (mask);
-			set_irq_data(irq, demux_masks + n);
-			set_irq_chained_handler(irq, demux_irqs);
+			irq_set_handler_data(irq, demux_masks + n);
+			irq_set_chained_handler(irq, demux_irqs);
 			if (++n == ARRAY_SIZE(demux_masks))
 				break;
 		}
diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c
index 2bef5705ce24..f0605ab2a761 100644
--- a/block/blk-cgroup.c
+++ b/block/blk-cgroup.c
@@ -868,7 +868,7 @@ static void blkio_update_policy_rule(struct blkio_policy_node *oldpn,
 }
 
 /*
- * Some rules/values in blkg have changed. Propogate those to respective
+ * Some rules/values in blkg have changed. Propagate those to respective
  * policies.
  */
 static void blkio_update_blkg_policy(struct blkio_cgroup *blkcg,
@@ -903,7 +903,7 @@ static void blkio_update_blkg_policy(struct blkio_cgroup *blkcg,
 }
 
 /*
- * A policy node rule has been updated. Propogate this update to all the
+ * A policy node rule has been updated. Propagate this update to all the
  * block groups which might be affected by this update.
  */
 static void blkio_update_policy_node_blkg(struct blkio_cgroup *blkcg,
diff --git a/block/blk-core.c b/block/blk-core.c
index 59b5c00c0126..90f22cc30799 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -271,7 +271,7 @@ EXPORT_SYMBOL(blk_start_queue);
  **/
 void blk_stop_queue(struct request_queue *q)
 {
-	cancel_delayed_work(&q->delay_work);
+	__cancel_delayed_work(&q->delay_work);
 	queue_flag_set(QUEUE_FLAG_STOPPED, q);
 }
 EXPORT_SYMBOL(blk_stop_queue);
@@ -1184,7 +1184,7 @@ static bool bio_attempt_front_merge(struct request_queue *q,
 
 /*
  * Attempts to merge with the plugged list in the current process. Returns
- * true if merge was succesful, otherwise false.
+ * true if merge was successful, otherwise false.
  */
 static bool attempt_plug_merge(struct task_struct *tsk, struct request_queue *q,
 			       struct bio *bio)
@@ -2163,7 +2163,7 @@ bool blk_update_request(struct request *req, int error, unsigned int nr_bytes)
 	 * size, something has gone terribly wrong.
 	 */
 	if (blk_rq_bytes(req) < blk_rq_cur_bytes(req)) {
-		printk(KERN_ERR "blk: request botched\n");
+		blk_dump_rq_flags(req, "request botched");
 		req->__data_len = blk_rq_cur_bytes(req);
 	}
 
@@ -2665,7 +2665,7 @@ static int plug_rq_cmp(void *priv, struct list_head *a, struct list_head *b)
 	struct request *rqa = container_of(a, struct request, queuelist);
 	struct request *rqb = container_of(b, struct request, queuelist);
 
-	return !(rqa->q == rqb->q);
+	return !(rqa->q <= rqb->q);
 }
 
 static void flush_plug_list(struct blk_plug *plug)
@@ -2702,7 +2702,10 @@ static void flush_plug_list(struct blk_plug *plug)
 		/*
 		 * rq is already accounted, so use raw insert
 		 */
-		__elv_add_request(q, rq, ELEVATOR_INSERT_SORT_MERGE);
+		if (rq->cmd_flags & (REQ_FLUSH | REQ_FUA))
+			__elv_add_request(q, rq, ELEVATOR_INSERT_FLUSH);
+		else
+			__elv_add_request(q, rq, ELEVATOR_INSERT_SORT_MERGE);
 	}
 
 	if (q) {
diff --git a/block/blk-flush.c b/block/blk-flush.c
index 93d5fd8e51eb..eba4a2790c6c 100644
--- a/block/blk-flush.c
+++ b/block/blk-flush.c
@@ -261,7 +261,7 @@ static bool blk_kick_flush(struct request_queue *q)
 	q->flush_rq.end_io = flush_end_io;
 
 	q->flush_pending_idx ^= 1;
-	elv_insert(q, &q->flush_rq, ELEVATOR_INSERT_REQUEUE);
+	list_add_tail(&q->flush_rq.queuelist, &q->queue_head);
 	return true;
 }
 
@@ -281,7 +281,7 @@ static void flush_data_end_io(struct request *rq, int error)
  * blk_insert_flush - insert a new FLUSH/FUA request
  * @rq: request to insert
  *
- * To be called from elv_insert() for %ELEVATOR_INSERT_FLUSH insertions.
+ * To be called from __elv_add_request() for %ELEVATOR_INSERT_FLUSH insertions.
  * @rq is being submitted.  Analyze what needs to be done and put it on the
  * right queue.
  *
@@ -312,7 +312,7 @@ void blk_insert_flush(struct request *rq)
 	 */
 	if ((policy & REQ_FSEQ_DATA) &&
 	    !(policy & (REQ_FSEQ_PREFLUSH | REQ_FSEQ_POSTFLUSH))) {
-		list_add(&rq->queuelist, &q->queue_head);
+		list_add_tail(&rq->queuelist, &q->queue_head);
 		return;
 	}
 
diff --git a/block/blk-integrity.c b/block/blk-integrity.c
index 54bcba6c02a7..129b9e209a3b 100644
--- a/block/blk-integrity.c
+++ b/block/blk-integrity.c
@@ -30,6 +30,8 @@
 
 static struct kmem_cache *integrity_cachep;
 
+static const char *bi_unsupported_name = "unsupported";
+
 /**
  * blk_rq_count_integrity_sg - Count number of integrity scatterlist elements
  * @q:		request queue
@@ -358,6 +360,14 @@ static struct kobj_type integrity_ktype = {
 	.release	= blk_integrity_release,
 };
 
+bool blk_integrity_is_initialized(struct gendisk *disk)
+{
+	struct blk_integrity *bi = blk_get_integrity(disk);
+
+	return (bi && bi->name && strcmp(bi->name, bi_unsupported_name) != 0);
+}
+EXPORT_SYMBOL(blk_integrity_is_initialized);
+
 /**
  * blk_integrity_register - Register a gendisk as being integrity-capable
  * @disk:	struct gendisk pointer to make integrity-aware
@@ -407,7 +417,7 @@ int blk_integrity_register(struct gendisk *disk, struct blk_integrity *template)
 		bi->get_tag_fn = template->get_tag_fn;
 		bi->tag_size = template->tag_size;
 	} else
-		bi->name = "unsupported";
+		bi->name = bi_unsupported_name;
 
 	return 0;
 }
diff --git a/block/blk-throttle.c b/block/blk-throttle.c
index 5352bdafbcf0..0475a22a420d 100644
--- a/block/blk-throttle.c
+++ b/block/blk-throttle.c
@@ -77,7 +77,7 @@ struct throtl_grp {
 	unsigned long slice_end[2];
 
 	/* Some throttle limits got updated for the group */
-	bool limits_changed;
+	int limits_changed;
 };
 
 struct throtl_data
@@ -102,7 +102,7 @@ struct throtl_data
 	/* Work for dispatching throttled bios */
 	struct delayed_work throtl_work;
 
-	bool limits_changed;
+	int limits_changed;
 };
 
 enum tg_state_flags {
@@ -916,7 +916,7 @@ static void throtl_update_blkio_group_common(struct throtl_data *td,
 /*
  * For all update functions, key should be a valid pointer because these
  * update functions are called under blkcg_lock, that means, blkg is
- * valid and in turn key is valid. queue exit path can not race becuase
+ * valid and in turn key is valid. queue exit path can not race because
  * of blkcg_lock
  *
  * Can not take queue lock in update functions as queue lock under blkcg_lock
diff --git a/block/blk.h b/block/blk.h
index c8db371a921d..61263463e38e 100644
--- a/block/blk.h
+++ b/block/blk.h
@@ -32,7 +32,7 @@ enum rq_atomic_flags {
 
 /*
  * EH timer and IO completion will both attempt to 'grab' the request, make
- * sure that only one of them suceeds
+ * sure that only one of them succeeds
  */
 static inline int blk_mark_rq_complete(struct request *rq)
 {
diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c
index 7785169f3c8f..3be881ec95ad 100644
--- a/block/cfq-iosched.c
+++ b/block/cfq-iosched.c
@@ -888,7 +888,7 @@ cfq_group_notify_queue_add(struct cfq_data *cfqd, struct cfq_group *cfqg)
 	/*
 	 * Currently put the group at the end. Later implement something
 	 * so that groups get lesser vtime based on their weights, so that
-	 * if group does not loose all if it was not continously backlogged.
+	 * if group does not loose all if it was not continuously backlogged.
 	 */
 	n = rb_last(&st->rb);
 	if (n) {
diff --git a/block/elevator.c b/block/elevator.c
index c387d3168734..0cdb4e7ebab4 100644
--- a/block/elevator.c
+++ b/block/elevator.c
@@ -610,7 +610,7 @@ void elv_requeue_request(struct request_queue *q, struct request *rq)
 
 	rq->cmd_flags &= ~REQ_STARTED;
 
-	elv_insert(q, rq, ELEVATOR_INSERT_REQUEUE);
+	__elv_add_request(q, rq, ELEVATOR_INSERT_REQUEUE);
 }
 
 void elv_drain_elevator(struct request_queue *q)
@@ -655,12 +655,25 @@ void elv_quiesce_end(struct request_queue *q)
 	queue_flag_clear(QUEUE_FLAG_ELVSWITCH, q);
 }
 
-void elv_insert(struct request_queue *q, struct request *rq, int where)
+void __elv_add_request(struct request_queue *q, struct request *rq, int where)
 {
 	trace_block_rq_insert(q, rq);
 
 	rq->q = q;
 
+	BUG_ON(rq->cmd_flags & REQ_ON_PLUG);
+
+	if (rq->cmd_flags & REQ_SOFTBARRIER) {
+		/* barriers are scheduling boundary, update end_sector */
+		if (rq->cmd_type == REQ_TYPE_FS ||
+		    (rq->cmd_flags & REQ_DISCARD)) {
+			q->end_sector = rq_end_sector(rq);
+			q->boundary_rq = rq;
+		}
+	} else if (!(rq->cmd_flags & REQ_ELVPRIV) &&
+		    where == ELEVATOR_INSERT_SORT)
+		where = ELEVATOR_INSERT_BACK;
+
 	switch (where) {
 	case ELEVATOR_INSERT_REQUEUE:
 	case ELEVATOR_INSERT_FRONT:
@@ -722,24 +735,6 @@ void elv_insert(struct request_queue *q, struct request *rq, int where)
 		BUG();
 	}
 }
-
-void __elv_add_request(struct request_queue *q, struct request *rq, int where)
-{
-	BUG_ON(rq->cmd_flags & REQ_ON_PLUG);
-
-	if (rq->cmd_flags & REQ_SOFTBARRIER) {
-		/* barriers are scheduling boundary, update end_sector */
-		if (rq->cmd_type == REQ_TYPE_FS ||
-		    (rq->cmd_flags & REQ_DISCARD)) {
-			q->end_sector = rq_end_sector(rq);
-			q->boundary_rq = rq;
-		}
-	} else if (!(rq->cmd_flags & REQ_ELVPRIV) &&
-		    where == ELEVATOR_INSERT_SORT)
-		where = ELEVATOR_INSERT_BACK;
-
-	elv_insert(q, rq, where);
-}
 EXPORT_SYMBOL(__elv_add_request);
 
 void elv_add_request(struct request_queue *q, struct request *rq, int where)
diff --git a/block/genhd.c b/block/genhd.c
index c91a2dac6b6b..b364bd038a18 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -739,7 +739,7 @@ void __init printk_all_partitions(void)
 
 		/*
 		 * Don't show empty devices or things that have been
-		 * surpressed
+		 * suppressed
 		 */
 		if (get_capacity(disk) == 0 ||
 		    (disk->flags & GENHD_FL_SUPPRESS_PARTITION_INFO))
diff --git a/crypto/ansi_cprng.c b/crypto/ansi_cprng.c
index 2bc332142849..ffa0245e2abc 100644
--- a/crypto/ansi_cprng.c
+++ b/crypto/ansi_cprng.c
@@ -83,7 +83,7 @@ static void xor_vectors(unsigned char *in1, unsigned char *in2,
 }
 /*
  * Returns DEFAULT_BLK_SZ bytes of random data per call
- * returns 0 if generation succeded, <0 if something went wrong
+ * returns 0 if generation succeeded, <0 if something went wrong
  */
 static int _get_more_prng_bytes(struct prng_context *ctx, int cont_test)
 {
diff --git a/crypto/async_tx/async_xor.c b/crypto/async_tx/async_xor.c
index 079ae8ca590b..bc28337fded2 100644
--- a/crypto/async_tx/async_xor.c
+++ b/crypto/async_tx/async_xor.c
@@ -94,7 +94,7 @@ do_async_xor(struct dma_chan *chan, struct page *dest, struct page **src_list,
 		if (unlikely(!tx))
 			async_tx_quiesce(&submit->depend_tx);
 
-		/* spin wait for the preceeding transactions to complete */
+		/* spin wait for the preceding transactions to complete */
 		while (unlikely(!tx)) {
 			dma_async_issue_pending(chan);
 			tx = dma->device_prep_dma_xor(chan, dma_dest,
diff --git a/crypto/gf128mul.c b/crypto/gf128mul.c
index a90d260528d4..df35e4ccd07e 100644
--- a/crypto/gf128mul.c
+++ b/crypto/gf128mul.c
@@ -89,7 +89,7 @@
 }
 
 /*	Given the value i in 0..255 as the byte overflow when a field element
-    in GHASH is multipled by x^8, this function will return the values that
+    in GHASH is multiplied by x^8, this function will return the values that
     are generated in the lo 16-bit word of the field value by applying the
     modular polynomial. The values lo_byte and hi_byte are returned via the
     macro xp_fun(lo_byte, hi_byte) so that the values can be assembled into
diff --git a/crypto/vmac.c b/crypto/vmac.c
index 0999274a27ac..f35ff8a3926e 100644
--- a/crypto/vmac.c
+++ b/crypto/vmac.c
@@ -95,7 +95,7 @@ const u64 mpoly = UINT64_C(0x1fffffff1fffffff);  /* Poly key mask     */
 
 /*
  * For highest performance the L1 NH and L2 polynomial hashes should be
- * carefully implemented to take advantage of one's target architechture.
+ * carefully implemented to take advantage of one's target architecture.
  * Here these two hash functions are defined multiple time; once for
  * 64-bit architectures, once for 32-bit SSE2 architectures, and once
  * for the rest (32-bit) architectures.
diff --git a/crypto/xts.c b/crypto/xts.c
index 555ecaab1e54..851705446c82 100644
--- a/crypto/xts.c
+++ b/crypto/xts.c
@@ -45,7 +45,7 @@ static int setkey(struct crypto_tfm *parent, const u8 *key,
 		return -EINVAL;
 	}
 
-	/* we need two cipher instances: one to compute the inital 'tweak'
+	/* we need two cipher instances: one to compute the initial 'tweak'
 	 * by encrypting the IV (usually the 'plain' iv) and the other
 	 * one to encrypt and decrypt the data */
 
diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c
index d1d484d4a06a..f703b2881153 100644
--- a/drivers/acpi/apei/ghes.c
+++ b/drivers/acpi/apei/ghes.c
@@ -241,7 +241,7 @@ static inline int ghes_severity(int severity)
 	case CPER_SEV_FATAL:
 		return GHES_SEV_PANIC;
 	default:
-		/* Unkown, go panic */
+		/* Unknown, go panic */
 		return GHES_SEV_PANIC;
 	}
 }
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index 85249395623b..f911a2f8cc34 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -32,6 +32,7 @@
 #include <linux/pm_runtime.h>
 #include <linux/pci.h>
 #include <linux/pci-acpi.h>
+#include <linux/pci-aspm.h>
 #include <linux/acpi.h>
 #include <linux/slab.h>
 #include <acpi/acpi_bus.h>
@@ -564,7 +565,7 @@ static int __devinit acpi_pci_root_add(struct acpi_device *device)
 	/* Indicate support for various _OSC capabilities. */
 	if (pci_ext_cfg_avail(root->bus->self))
 		flags |= OSC_EXT_PCI_CONFIG_SUPPORT;
-	if (pcie_aspm_enabled())
+	if (pcie_aspm_support_enabled())
 		flags |= OSC_ACTIVE_STATE_PWR_SUPPORT |
 			OSC_CLOCK_PWR_CAPABILITY_SUPPORT;
 	if (pci_msi_enabled())
@@ -591,12 +592,16 @@ static int __devinit acpi_pci_root_add(struct acpi_device *device)
 
 		status = acpi_pci_osc_control_set(device->handle, &flags,
 					OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL);
-		if (ACPI_SUCCESS(status))
+		if (ACPI_SUCCESS(status)) {
 			dev_info(root->bus->bridge,
 				"ACPI _OSC control (0x%02x) granted\n", flags);
-		else
+		} else {
 			dev_dbg(root->bus->bridge,
 				"ACPI _OSC request failed (code %d)\n", status);
+			printk(KERN_INFO "Unable to assume _OSC PCIe control. "
+				"Disabling ASPM\n");
+			pcie_no_aspm();
+		}
 	}
 
 	pci_acpi_add_bus_pm_notifier(device, root->bus);
diff --git a/drivers/acpi/processor_throttling.c b/drivers/acpi/processor_throttling.c
index fa84e9744330..ad3501739563 100644
--- a/drivers/acpi/processor_throttling.c
+++ b/drivers/acpi/processor_throttling.c
@@ -1164,7 +1164,7 @@ int acpi_processor_set_throttling(struct acpi_processor *pr,
 			 */
 			if (!match_pr->flags.throttling) {
 				ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-					"Throttling Controll is unsupported "
+					"Throttling Control is unsupported "
 					"on CPU %d\n", i));
 				continue;
 			}
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index a18e497f1c3c..ec574fc8fbc6 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -824,11 +824,6 @@ static void acpi_video_device_find_cap(struct acpi_video_device *device)
 		device->backlight->props.brightness =
 				acpi_video_get_brightness(device->backlight);
 
-		result = sysfs_create_link(&device->backlight->dev.kobj,
-					   &device->dev->dev.kobj, "device");
-		if (result)
-			printk(KERN_ERR PREFIX "Create sysfs link\n");
-
 		device->cooling_dev = thermal_cooling_device_register("LCD",
 					device->dev, &video_cooling_ops);
 		if (IS_ERR(device->cooling_dev)) {
@@ -1359,7 +1354,7 @@ acpi_video_bus_get_devices(struct acpi_video_bus *video,
 		status = acpi_video_bus_get_one_device(dev, video);
 		if (ACPI_FAILURE(status)) {
 			printk(KERN_WARNING PREFIX
-					"Cant attach device\n");
+					"Can't attach device\n");
 			continue;
 		}
 	}
@@ -1378,10 +1373,9 @@ static int acpi_video_bus_put_one_device(struct acpi_video_device *device)
 					    acpi_video_device_notify);
 	if (ACPI_FAILURE(status)) {
 		printk(KERN_WARNING PREFIX
-		       "Cant remove video notify handler\n");
+		       "Can't remove video notify handler\n");
 	}
 	if (device->backlight) {
-		sysfs_remove_link(&device->backlight->dev.kobj, "device");
 		backlight_device_unregister(device->backlight);
 		device->backlight = NULL;
 	}
diff --git a/drivers/amba/bus.c b/drivers/amba/bus.c
index 6d2bb2524b6e..821040503154 100644
--- a/drivers/amba/bus.c
+++ b/drivers/amba/bus.c
@@ -760,7 +760,7 @@ int amba_request_regions(struct amba_device *dev, const char *name)
 }
 
 /**
- *	amba_release_regions - release mem regions assoicated with device
+ *	amba_release_regions - release mem regions associated with device
  *	@dev: amba_device structure for device
  *
  *	Release regions claimed by a successful call to amba_request_regions.
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index e62f693be8ea..39d829cd82dd 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -926,7 +926,7 @@ static bool ahci_broken_suspend(struct pci_dev *pdev)
 		/*
 		 * Acer eMachines G725 has the same problem.  BIOS
 		 * V1.03 is known to be broken.  V3.04 is known to
-		 * work.  Inbetween, there are V1.06, V2.06 and V3.03
+		 * work.  Between, there are V1.06, V2.06 and V3.03
 		 * that we don't have much idea about.  For now,
 		 * blacklist anything older than V3.04.
 		 *
diff --git a/drivers/ata/ahci.h b/drivers/ata/ahci.h
index ccaf08122058..39865009c251 100644
--- a/drivers/ata/ahci.h
+++ b/drivers/ata/ahci.h
@@ -225,7 +225,7 @@ enum {
 	/* em_ctl bits */
 	EM_CTL_RST		= (1 << 9), /* Reset */
 	EM_CTL_TM		= (1 << 8), /* Transmit Message */
-	EM_CTL_MR		= (1 << 0), /* Message Recieved */
+	EM_CTL_MR		= (1 << 0), /* Message Received */
 	EM_CTL_ALHD		= (1 << 26), /* Activity LED */
 	EM_CTL_XMT		= (1 << 25), /* Transmit Only */
 	EM_CTL_SMB		= (1 << 24), /* Single Message Buffer */
@@ -281,7 +281,7 @@ struct ahci_port_priv {
 };
 
 struct ahci_host_priv {
-	void __iomem *		mmio;		/* bus-independant mem map */
+	void __iomem *		mmio;		/* bus-independent mem map */
 	unsigned int		flags;		/* AHCI_HFLAG_* */
 	u32			cap;		/* cap to use */
 	u32			cap2;		/* cap2 to use */
diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c
index cdec4ab3b159..0bc3fd6c3fdb 100644
--- a/drivers/ata/ata_piix.c
+++ b/drivers/ata/ata_piix.c
@@ -38,16 +38,16 @@
  *  Hardware documentation available at http://developer.intel.com/
  *
  * Documentation
- *	Publically available from Intel web site. Errata documentation
- * is also publically available. As an aide to anyone hacking on this
+ *	Publicly available from Intel web site. Errata documentation
+ * is also publicly available. As an aide to anyone hacking on this
  * driver the list of errata that are relevant is below, going back to
  * PIIX4. Older device documentation is now a bit tricky to find.
  *
  * The chipsets all follow very much the same design. The original Triton
- * series chipsets do _not_ support independant device timings, but this
+ * series chipsets do _not_ support independent device timings, but this
  * is fixed in Triton II. With the odd mobile exception the chips then
  * change little except in gaining more modes until SATA arrives. This
- * driver supports only the chips with independant timing (that is those
+ * driver supports only the chips with independent timing (that is those
  * with SITRE and the 0x44 timing register). See pata_oldpiix and pata_mpiix
  * for the early chip drivers.
  *
@@ -122,7 +122,7 @@ enum {
 	P2			= 2,  /* port 2 */
 	P3			= 3,  /* port 3 */
 	IDE			= -1, /* IDE */
-	NA			= -2, /* not avaliable */
+	NA			= -2, /* not available */
 	RV			= -3, /* reserved */
 
 	PIIX_AHCI_DEVICE	= 6,
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index b91e19cab102..423c0a6952b2 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -5340,7 +5340,7 @@ int ata_host_suspend(struct ata_host *host, pm_message_t mesg)
  *
  *	Resume @host.  Actual operation is performed by EH.  This
  *	function requests EH to perform PM operations and returns.
- *	Note that all resume operations are performed parallely.
+ *	Note that all resume operations are performed parallelly.
  *
  *	LOCKING:
  *	Kernel thread context (may sleep).
diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index df3f3140c9c7..88cd22fa65cd 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -771,7 +771,7 @@ void ata_scsi_port_error_handler(struct Scsi_Host *host, struct ata_port *ap)
 		/* process port suspend request */
 		ata_eh_handle_port_suspend(ap);
 
-		/* Exception might have happend after ->error_handler
+		/* Exception might have happened after ->error_handler
 		 * recovered the port but before this point.  Repeat
 		 * EH in such case.
 		 */
@@ -1742,7 +1742,7 @@ void ata_eh_analyze_ncq_error(struct ata_link *link)
  *
  *	Analyze taskfile of @qc and further determine cause of
  *	failure.  This function also requests ATAPI sense data if
- *	avaliable.
+ *	available.
  *
  *	LOCKING:
  *	Kernel thread context (may sleep).
@@ -1893,7 +1893,7 @@ static int speed_down_verdict_cb(struct ata_ering_entry *ent, void *void_arg)
  *	   occurred during last 5 mins, NCQ_OFF.
  *
  *	3. If more than 8 ATA_BUS, TOUT_HSM or UNK_DEV errors
- *	   ocurred during last 5 mins, FALLBACK_TO_PIO
+ *	   occurred during last 5 mins, FALLBACK_TO_PIO
  *
  *	4. If more than 3 TOUT_HSM or UNK_DEV errors occurred
  *	   during last 10 mins, NCQ_OFF.
@@ -2577,7 +2577,7 @@ int ata_eh_reset(struct ata_link *link, int classify,
 	if (link->flags & ATA_LFLAG_NO_SRST)
 		softreset = NULL;
 
-	/* make sure each reset attemp is at least COOL_DOWN apart */
+	/* make sure each reset attempt is at least COOL_DOWN apart */
 	if (ehc->i.flags & ATA_EHI_DID_RESET) {
 		now = jiffies;
 		WARN_ON(time_after(ehc->last_reset, now));
@@ -2736,7 +2736,7 @@ int ata_eh_reset(struct ata_link *link, int classify,
 			if (!reset) {
 				ata_link_printk(link, KERN_ERR,
 						"follow-up softreset required "
-						"but no softreset avaliable\n");
+						"but no softreset available\n");
 				failed_link = link;
 				rc = -EINVAL;
 				goto fail;
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index a83419991357..e2f57e9e12f0 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -999,7 +999,7 @@ static void ata_gen_passthru_sense(struct ata_queued_cmd *qc)
  *	@qc: Command that we are erroring out
  *
  *	Generate sense block for a failed ATA command @qc.  Descriptor
- *	format is used to accomodate LBA48 block address.
+ *	format is used to accommodate LBA48 block address.
  *
  *	LOCKING:
  *	None.
diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c
index cf7acbc0cfcb..f8380ce0f4d1 100644
--- a/drivers/ata/libata-sff.c
+++ b/drivers/ata/libata-sff.c
@@ -2839,7 +2839,7 @@ unsigned int ata_bmdma_port_intr(struct ata_port *ap, struct ata_queued_cmd *qc)
 		bmdma_stopped = true;
 
 		if (unlikely(host_stat & ATA_DMA_ERR)) {
-			/* error when transfering data to/from memory */
+			/* error when transferring data to/from memory */
 			qc->err_mask |= AC_ERR_HOST_BUS;
 			ap->hsm_task_state = HSM_ST_ERR;
 		}
@@ -3032,7 +3032,7 @@ void ata_bmdma_start(struct ata_queued_cmd *qc)
 	 * Or maybe I'm just being paranoid.
 	 *
 	 * FIXME: The posting of this write means I/O starts are
-	 * unneccessarily delayed for MMIO
+	 * unnecessarily delayed for MMIO
 	 */
 }
 EXPORT_SYMBOL_GPL(ata_bmdma_start);
diff --git a/drivers/ata/pata_amd.c b/drivers/ata/pata_amd.c
index 620a07cabe31..b0975a5ad8c4 100644
--- a/drivers/ata/pata_amd.c
+++ b/drivers/ata/pata_amd.c
@@ -11,7 +11,7 @@
  *	Power management on ports
  *
  *
- *  Documentation publically available.
+ *  Documentation publicly available.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/ata/pata_arasan_cf.c b/drivers/ata/pata_arasan_cf.c
index 65cee74605b4..719bb73a73e0 100644
--- a/drivers/ata/pata_arasan_cf.c
+++ b/drivers/ata/pata_arasan_cf.c
@@ -385,7 +385,7 @@ static inline int wait4buf(struct arasan_cf_dev *acdev)
 		return -ETIMEDOUT;
 	}
 
-	/* Check if PIO Error interrupt has occured */
+	/* Check if PIO Error interrupt has occurred */
 	if (acdev->dma_status & ATA_DMA_ERR)
 		return -EAGAIN;
 
@@ -450,7 +450,7 @@ static int sg_xfer(struct arasan_cf_dev *acdev, struct scatterlist *sg)
 	/*
 	 * For each sg:
 	 * MAX_XFER_COUNT data will be transferred before we get transfer
-	 * complete interrupt. Inbetween after FIFO_SIZE data
+	 * complete interrupt. Between after FIFO_SIZE data
 	 * buffer available interrupt will be generated. At this time we will
 	 * fill FIFO again: max FIFO_SIZE data.
 	 */
@@ -463,7 +463,7 @@ static int sg_xfer(struct arasan_cf_dev *acdev, struct scatterlist *sg)
 				acdev->vbase + XFER_CTR);
 		spin_unlock_irqrestore(&acdev->host->lock, flags);
 
-		/* continue dma xfers untill current sg is completed */
+		/* continue dma xfers until current sg is completed */
 		while (xfer_cnt) {
 			/* wait for read to complete */
 			if (!write) {
@@ -563,7 +563,7 @@ static void data_xfer(struct work_struct *work)
 
 chan_request_fail:
 	spin_lock_irqsave(&acdev->host->lock, flags);
-	/* error when transfering data to/from memory */
+	/* error when transferring data to/from memory */
 	qc->err_mask |= AC_ERR_HOST_BUS;
 	qc->ap->hsm_task_state = HSM_ST_ERR;
 
diff --git a/drivers/ata/pata_bf54x.c b/drivers/ata/pata_bf54x.c
index e0b58b8dfe6f..ea64967000ff 100644
--- a/drivers/ata/pata_bf54x.c
+++ b/drivers/ata/pata_bf54x.c
@@ -1342,7 +1342,7 @@ static unsigned int bfin_ata_host_intr(struct ata_port *ap,
 			ap->ops->bmdma_stop(qc);
 
 			if (unlikely(host_stat & ATA_DMA_ERR)) {
-				/* error when transfering data to/from memory */
+				/* error when transferring data to/from memory */
 				qc->err_mask |= AC_ERR_HOST_BUS;
 				ap->hsm_task_state = HSM_ST_ERR;
 			}
diff --git a/drivers/ata/pata_cs5520.c b/drivers/ata/pata_cs5520.c
index 030952f1f97c..e3254fcff0f1 100644
--- a/drivers/ata/pata_cs5520.c
+++ b/drivers/ata/pata_cs5520.c
@@ -29,7 +29,7 @@
  * General Public License for more details.
  *
  * Documentation:
- *	Not publically available.
+ *	Not publicly available.
  */
 #include <linux/kernel.h>
 #include <linux/module.h>
diff --git a/drivers/ata/pata_ixp4xx_cf.c b/drivers/ata/pata_ixp4xx_cf.c
index 5253b271b3fe..f6b3f995f58a 100644
--- a/drivers/ata/pata_ixp4xx_cf.c
+++ b/drivers/ata/pata_ixp4xx_cf.c
@@ -167,7 +167,7 @@ static __devinit int ixp4xx_pata_probe(struct platform_device *pdev)
 
 	irq = platform_get_irq(pdev, 0);
 	if (irq)
-		set_irq_type(irq, IRQ_TYPE_EDGE_RISING);
+		irq_set_irq_type(irq, IRQ_TYPE_EDGE_RISING);
 
 	/* Setup expansion bus chip selects */
 	*data->cs0_cfg = data->cs0_bits;
diff --git a/drivers/ata/pata_mpiix.c b/drivers/ata/pata_mpiix.c
index b21f0021f54a..d8d9c5807740 100644
--- a/drivers/ata/pata_mpiix.c
+++ b/drivers/ata/pata_mpiix.c
@@ -15,7 +15,7 @@
  * with PCI IDE and also that we do not disable the device when our driver is
  * unloaded (as it has many other functions).
  *
- * The driver conciously keeps this logic internally to avoid pushing quirky
+ * The driver consciously keeps this logic internally to avoid pushing quirky
  * PATA history into the clean libata layer.
  *
  * Thinkpad specific note: If you boot an MPIIX using a thinkpad with a PCMCIA
diff --git a/drivers/ata/pata_palmld.c b/drivers/ata/pata_palmld.c
index a2a73d953840..b86d7e22595e 100644
--- a/drivers/ata/pata_palmld.c
+++ b/drivers/ata/pata_palmld.c
@@ -33,6 +33,11 @@
 
 #define DRV_NAME "pata_palmld"
 
+static struct gpio palmld_hdd_gpios[] = {
+	{ GPIO_NR_PALMLD_IDE_PWEN,	GPIOF_INIT_HIGH,	"HDD Power" },
+	{ GPIO_NR_PALMLD_IDE_RESET,	GPIOF_INIT_LOW,		"HDD Reset" },
+};
+
 static struct scsi_host_template palmld_sht = {
 	ATA_PIO_SHT(DRV_NAME),
 };
@@ -52,28 +57,23 @@ static __devinit int palmld_pata_probe(struct platform_device *pdev)
 
 	/* allocate host */
 	host = ata_host_alloc(&pdev->dev, 1);
-	if (!host)
-		return -ENOMEM;
+	if (!host) {
+		ret = -ENOMEM;
+		goto err1;
+	}
 
 	/* remap drive's physical memory address */
 	mem = devm_ioremap(&pdev->dev, PALMLD_IDE_PHYS, 0x1000);
-	if (!mem)
-		return -ENOMEM;
+	if (!mem) {
+		ret = -ENOMEM;
+		goto err1;
+	}
 
 	/* request and activate power GPIO, IRQ GPIO */
-	ret = gpio_request(GPIO_NR_PALMLD_IDE_PWEN, "HDD PWR");
+	ret = gpio_request_array(palmld_hdd_gpios,
+				ARRAY_SIZE(palmld_hdd_gpios));
 	if (ret)
 		goto err1;
-	ret = gpio_direction_output(GPIO_NR_PALMLD_IDE_PWEN, 1);
-	if (ret)
-		goto err2;
-
-	ret = gpio_request(GPIO_NR_PALMLD_IDE_RESET, "HDD RST");
-	if (ret)
-		goto err2;
-	ret = gpio_direction_output(GPIO_NR_PALMLD_IDE_RESET, 0);
-	if (ret)
-		goto err3;
 
 	/* reset the drive */
 	gpio_set_value(GPIO_NR_PALMLD_IDE_RESET, 0);
@@ -96,13 +96,15 @@ static __devinit int palmld_pata_probe(struct platform_device *pdev)
 	ata_sff_std_ports(&ap->ioaddr);
 
 	/* activate host */
-	return ata_host_activate(host, 0, NULL, IRQF_TRIGGER_RISING,
+	ret = ata_host_activate(host, 0, NULL, IRQF_TRIGGER_RISING,
 					&palmld_sht);
+	if (ret)
+		goto err2;
+
+	return ret;
 
-err3:
-	gpio_free(GPIO_NR_PALMLD_IDE_RESET);
 err2:
-	gpio_free(GPIO_NR_PALMLD_IDE_PWEN);
+	gpio_free_array(palmld_hdd_gpios, ARRAY_SIZE(palmld_hdd_gpios));
 err1:
 	return ret;
 }
@@ -116,8 +118,7 @@ static __devexit int palmld_pata_remove(struct platform_device *dev)
 	/* power down the HDD */
 	gpio_set_value(GPIO_NR_PALMLD_IDE_PWEN, 0);
 
-	gpio_free(GPIO_NR_PALMLD_IDE_RESET);
-	gpio_free(GPIO_NR_PALMLD_IDE_PWEN);
+	gpio_free_array(palmld_hdd_gpios, ARRAY_SIZE(palmld_hdd_gpios));
 
 	return 0;
 }
diff --git a/drivers/ata/pata_rb532_cf.c b/drivers/ata/pata_rb532_cf.c
index baeaf938d55b..1b9d10d9c5d9 100644
--- a/drivers/ata/pata_rb532_cf.c
+++ b/drivers/ata/pata_rb532_cf.c
@@ -60,10 +60,10 @@ static irqreturn_t rb532_pata_irq_handler(int irq, void *dev_instance)
 	struct rb532_cf_info *info = ah->private_data;
 
 	if (gpio_get_value(info->gpio_line)) {
-		set_irq_type(info->irq, IRQ_TYPE_LEVEL_LOW);
+		irq_set_irq_type(info->irq, IRQ_TYPE_LEVEL_LOW);
 		ata_sff_interrupt(info->irq, dev_instance);
 	} else {
-		set_irq_type(info->irq, IRQ_TYPE_LEVEL_HIGH);
+		irq_set_irq_type(info->irq, IRQ_TYPE_LEVEL_HIGH);
 	}
 
 	return IRQ_HANDLED;
diff --git a/drivers/ata/pata_rz1000.c b/drivers/ata/pata_rz1000.c
index 4a454a88aa9d..4d04471794b6 100644
--- a/drivers/ata/pata_rz1000.c
+++ b/drivers/ata/pata_rz1000.c
@@ -112,7 +112,7 @@ static int rz1000_reinit_one(struct pci_dev *pdev)
 	if (rc)
 		return rc;
 
-	/* If this fails on resume (which is a "cant happen" case), we
+	/* If this fails on resume (which is a "can't happen" case), we
 	   must stop as any progress risks data loss */
 	if (rz1000_fifo_disable(pdev))
 		panic("rz1000 fifo");
diff --git a/drivers/ata/pata_sil680.c b/drivers/ata/pata_sil680.c
index 00eefbd84b33..118787caa93f 100644
--- a/drivers/ata/pata_sil680.c
+++ b/drivers/ata/pata_sil680.c
@@ -11,7 +11,7 @@
  *
  *  May be copied or modified under the terms of the GNU General Public License
  *
- *  Documentation publically available.
+ *  Documentation publicly available.
  *
  *	If you have strange problems with nVidia chipset systems please
  *	see the SI support documentation and update your system BIOS
@@ -43,7 +43,7 @@
  *
  *	Turn a config register offset into the right address in either
  *	PCI space or MMIO space to access the control register in question
- *	Thankfully this is a configuration operation so isnt performance
+ *	Thankfully this is a configuration operation so isn't performance
  *	criticial.
  */
 
diff --git a/drivers/ata/pata_sis.c b/drivers/ata/pata_sis.c
index c04abc393fc5..be08ff92db17 100644
--- a/drivers/ata/pata_sis.c
+++ b/drivers/ata/pata_sis.c
@@ -331,7 +331,7 @@ static void sis_old_set_dmamode (struct ata_port *ap, struct ata_device *adev)
 
 	if (adev->dma_mode < XFER_UDMA_0) {
 		/* bits 3-0 hold recovery timing bits 8-10 active timing and
-		   the higher bits are dependant on the device */
+		   the higher bits are dependent on the device */
 		timing &= ~0x870F;
 		timing |= mwdma_bits[speed];
 	} else {
@@ -371,7 +371,7 @@ static void sis_66_set_dmamode (struct ata_port *ap, struct ata_device *adev)
 
 	if (adev->dma_mode < XFER_UDMA_0) {
 		/* bits 3-0 hold recovery timing bits 8-10 active timing and
-		   the higher bits are dependant on the device, bit 15 udma */
+		   the higher bits are dependent on the device, bit 15 udma */
 		timing &= ~0x870F;
 		timing |= mwdma_bits[speed];
 	} else {
diff --git a/drivers/ata/pata_triflex.c b/drivers/ata/pata_triflex.c
index 0d1f89e571dd..03b6d69d6197 100644
--- a/drivers/ata/pata_triflex.c
+++ b/drivers/ata/pata_triflex.c
@@ -30,7 +30,7 @@
  * Loosely based on the piix & svwks drivers.
  *
  * Documentation:
- *	Not publically available.
+ *	Not publicly available.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/ata/sata_fsl.c b/drivers/ata/sata_fsl.c
index 0f91e583892e..35a71d875d0e 100644
--- a/drivers/ata/sata_fsl.c
+++ b/drivers/ata/sata_fsl.c
@@ -42,7 +42,7 @@ enum {
 
 	/*
 	 * SATA-FSL host controller supports a max. of (15+1) direct PRDEs, and
-	 * chained indirect PRDEs upto a max count of 63.
+	 * chained indirect PRDEs up to a max count of 63.
 	 * We are allocating an array of 63 PRDEs contiguously, but PRDE#15 will
 	 * be setup as an indirect descriptor, pointing to it's next
 	 * (contiguous) PRDE. Though chained indirect PRDE arrays are
@@ -907,7 +907,7 @@ static int sata_fsl_softreset(struct ata_link *link, unsigned int *class,
 	ata_msleep(ap, 1);
 
 	/*
-	 * SATA device enters reset state after receving a Control register
+	 * SATA device enters reset state after receiving a Control register
 	 * FIS with SRST bit asserted and it awaits another H2D Control reg.
 	 * FIS with SRST bit cleared, then the device does internal diags &
 	 * initialization, followed by indicating it's initialization status
diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c
index cd40651e9b72..b52c0519ad0b 100644
--- a/drivers/ata/sata_mv.c
+++ b/drivers/ata/sata_mv.c
@@ -1352,7 +1352,7 @@ static int mv_scr_write(struct ata_link *link, unsigned int sc_reg_in, u32 val)
 			/*
 			 * Workaround for 88SX60x1 FEr SATA#26:
 			 *
-			 * COMRESETs have to take care not to accidently
+			 * COMRESETs have to take care not to accidentally
 			 * put the drive to sleep when writing SCR_CONTROL.
 			 * Setting bits 12..15 prevents this problem.
 			 *
@@ -2044,7 +2044,7 @@ static void mv_qc_prep(struct ata_queued_cmd *qc)
 
 	cw = &pp->crqb[in_index].ata_cmd[0];
 
-	/* Sadly, the CRQB cannot accomodate all registers--there are
+	/* Sadly, the CRQB cannot accommodate all registers--there are
 	 * only 11 bytes...so we must pick and choose required
 	 * registers based on the command.  So, we drop feature and
 	 * hob_feature for [RW] DMA commands, but they are needed for
diff --git a/drivers/ata/sata_nv.c b/drivers/ata/sata_nv.c
index 42344e3c686d..f173ef3bfc10 100644
--- a/drivers/ata/sata_nv.c
+++ b/drivers/ata/sata_nv.c
@@ -2121,7 +2121,7 @@ static int nv_swncq_sdbfis(struct ata_port *ap)
 
 	host_stat = ap->ops->bmdma_status(ap);
 	if (unlikely(host_stat & ATA_DMA_ERR)) {
-		/* error when transfering data to/from memory */
+		/* error when transferring data to/from memory */
 		ata_ehi_clear_desc(ehi);
 		ata_ehi_push_desc(ehi, "BMDMA stat 0x%x", host_stat);
 		ehi->err_mask |= AC_ERR_HOST_BUS;
diff --git a/drivers/ata/sata_via.c b/drivers/ata/sata_via.c
index 21242c5709a0..54434db15b12 100644
--- a/drivers/ata/sata_via.c
+++ b/drivers/ata/sata_via.c
@@ -582,7 +582,7 @@ static void svia_configure(struct pci_dev *pdev, int board_id)
 	 * When host issues HOLD, device may send up to 20DW of data
 	 * before acknowledging it with HOLDA and the host should be
 	 * able to buffer them in FIFO.  Unfortunately, some WD drives
-	 * send upto 40DW before acknowledging HOLD and, in the
+	 * send up to 40DW before acknowledging HOLD and, in the
 	 * default configuration, this ends up overflowing vt6421's
 	 * FIFO, making the controller abort the transaction with
 	 * R_ERR.
diff --git a/drivers/atm/ambassador.c b/drivers/atm/ambassador.c
index 9f47e8625266..a5fcb1eb862f 100644
--- a/drivers/atm/ambassador.c
+++ b/drivers/atm/ambassador.c
@@ -497,7 +497,7 @@ static void rx_complete (amb_dev * dev, rx_out * rx) {
 	  // VC layer stats
 	  atomic_inc(&atm_vcc->stats->rx);
 	  __net_timestamp(skb);
-	  // end of our responsability
+	  // end of our responsibility
 	  atm_vcc->push (atm_vcc, skb);
 	  return;
 	  
diff --git a/drivers/atm/firestream.c b/drivers/atm/firestream.c
index 049650d42c88..ef7a658312a6 100644
--- a/drivers/atm/firestream.c
+++ b/drivers/atm/firestream.c
@@ -1782,7 +1782,7 @@ static int __devinit fs_init (struct fs_dev *dev)
 		write_fs (dev, RAS0, RAS0_DCD_XHLT 
 			  | (((1 << FS155_VPI_BITS) - 1) * RAS0_VPSEL)
 			  | (((1 << FS155_VCI_BITS) - 1) * RAS0_VCSEL));
-		/* We can chose the split arbitarily. We might be able to 
+		/* We can chose the split arbitrarily. We might be able to 
 		   support more. Whatever. This should do for now. */
 		dev->atm_dev->ci_range.vpi_bits = FS155_VPI_BITS;
 		dev->atm_dev->ci_range.vci_bits = FS155_VCI_BITS;
diff --git a/drivers/atm/fore200e.h b/drivers/atm/fore200e.h
index 7f97c09aaea5..ba34a02b717d 100644
--- a/drivers/atm/fore200e.h
+++ b/drivers/atm/fore200e.h
@@ -263,7 +263,7 @@ typedef enum opcode {
 } opcode_t;
 
 
-/* virtual path / virtual channel identifers */
+/* virtual path / virtual channel identifiers */
 
 typedef struct vpvc {
     BITFIELD3(
@@ -926,7 +926,7 @@ typedef struct fore200e_vcc {
 
 #define PCA200E_PCI_LATENCY      0x40    /* maximum slave latenty            */
 #define PCA200E_PCI_MASTER_CTRL  0x41    /* master control                   */
-#define PCA200E_PCI_THRESHOLD    0x42    /* burst / continous req threshold  */
+#define PCA200E_PCI_THRESHOLD    0x42    /* burst / continuous req threshold  */
 
 /* PBI master control register */
 
diff --git a/drivers/atm/horizon.c b/drivers/atm/horizon.c
index 24761e1d6642..d58e3fcb9db3 100644
--- a/drivers/atm/horizon.c
+++ b/drivers/atm/horizon.c
@@ -169,13 +169,13 @@ static inline void __init show_version (void) {
   Real Time (cdv and max CDT given)
   
   CBR(pcr)             pcr bandwidth always available
-  rtVBR(pcr,scr,mbs)   scr bandwidth always available, upto pcr at mbs too
+  rtVBR(pcr,scr,mbs)   scr bandwidth always available, up to pcr at mbs too
   
   Non Real Time
   
-  nrtVBR(pcr,scr,mbs)  scr bandwidth always available, upto pcr at mbs too
+  nrtVBR(pcr,scr,mbs)  scr bandwidth always available, up to pcr at mbs too
   UBR()
-  ABR(mcr,pcr)         mcr bandwidth always available, upto pcr (depending) too
+  ABR(mcr,pcr)         mcr bandwidth always available, up to pcr (depending) too
   
   mbs is max burst size (bucket)
   pcr and scr have associated cdvt values
@@ -944,7 +944,7 @@ static void hrz_close_rx (hrz_dev * dev, u16 vc) {
 // to be fixed soon, so do not define TAILRECUSRIONWORKS unless you
 // are sure it does as you may otherwise overflow the kernel stack.
 
-// giving this fn a return value would help GCC, alledgedly
+// giving this fn a return value would help GCC, allegedly
 
 static void rx_schedule (hrz_dev * dev, int irq) {
   unsigned int rx_bytes;
@@ -1036,7 +1036,7 @@ static void rx_schedule (hrz_dev * dev, int irq) {
 	  // VC layer stats
 	  atomic_inc(&vcc->stats->rx);
 	  __net_timestamp(skb);
-	  // end of our responsability
+	  // end of our responsibility
 	  vcc->push (vcc, skb);
 	}
       }
diff --git a/drivers/atm/idt77252.c b/drivers/atm/idt77252.c
index bfb7feee0400..048f99fe6f83 100644
--- a/drivers/atm/idt77252.c
+++ b/drivers/atm/idt77252.c
@@ -3495,7 +3495,7 @@ init_card(struct atm_dev *dev)
 		return -1;
 	}
 	if (dev->phy->ioctl == NULL) {
-		printk("%s: LT had no IOCTL funtion defined.\n", card->name);
+		printk("%s: LT had no IOCTL function defined.\n", card->name);
 		deinit_card(card);
 		return -1;
 	}
diff --git a/drivers/atm/idt77252.h b/drivers/atm/idt77252.h
index f53a43ae2bbe..3a82cc23a053 100644
--- a/drivers/atm/idt77252.h
+++ b/drivers/atm/idt77252.h
@@ -766,7 +766,7 @@ struct idt77252_dev
 #define SAR_RCTE_BUFFSTAT_MASK 0x00003000  /* buffer status                  */
 #define SAR_RCTE_EFCI          0x00000800  /* EFCI Congestion flag           */
 #define SAR_RCTE_CLP           0x00000400  /* Cell Loss Priority flag        */
-#define SAR_RCTE_CRC           0x00000200  /* Recieved CRC Error             */
+#define SAR_RCTE_CRC           0x00000200  /* Received CRC Error             */
 #define SAR_RCTE_CELLCNT_MASK  0x000001FF  /* cell Count                     */
 
 #define SAR_RCTE_AAL0          0x00000000  /* AAL types for ALL field        */
diff --git a/drivers/atm/iphase.c b/drivers/atm/iphase.c
index d80d51b62a1a..1c674a91f146 100644
--- a/drivers/atm/iphase.c
+++ b/drivers/atm/iphase.c
@@ -1025,7 +1025,7 @@ static void desc_dbg(IADEV *iadev) {
 } 
   
   
-/*----------------------------- Recieving side stuff --------------------------*/  
+/*----------------------------- Receiving side stuff --------------------------*/  
  
 static void rx_excp_rcvd(struct atm_dev *dev)  
 {  
@@ -1195,7 +1195,7 @@ static void rx_intr(struct atm_dev *dev)
   if (status & RX_PKT_RCVD)  
   {  
 	/* do something */  
-	/* Basically recvd an interrupt for receving a packet.  
+	/* Basically recvd an interrupt for receiving a packet.  
 	A descriptor would have been written to the packet complete   
 	queue. Get all the descriptors and set up dma to move the   
 	packets till the packet complete queue is empty..  
@@ -1855,7 +1855,7 @@ static int open_tx(struct atm_vcc *vcc)
                     return -EINVAL; 
                 }
                 if (vcc->qos.txtp.max_pcr > iadev->LineRate) {
-                   IF_CBR(printk("PCR is not availble\n");)
+                   IF_CBR(printk("PCR is not available\n");)
                    return -1;
                 }
                 vc->type = CBR;
diff --git a/drivers/atm/lanai.c b/drivers/atm/lanai.c
index 52880c8387d8..4e8ba56f75d3 100644
--- a/drivers/atm/lanai.c
+++ b/drivers/atm/lanai.c
@@ -1255,7 +1255,7 @@ static inline void lanai_endtx(struct lanai_dev *lanai,
 	/*
 	 * Since the "butt register" is a shared resounce on the card we
 	 * serialize all accesses to it through this spinlock.  This is
-	 * mostly just paranoia sicne the register is rarely "busy" anyway
+	 * mostly just paranoia since the register is rarely "busy" anyway
 	 * but is needed for correctness.
 	 */
 	spin_lock(&lanai->endtxlock);
@@ -1990,7 +1990,7 @@ static int __devinit lanai_pci_start(struct lanai_dev *lanai)
 
 /*
  * We _can_ use VCI==0 for normal traffic, but only for UBR (or we'll
- * get a CBRZERO interrupt), and we can use it only if noone is receiving
+ * get a CBRZERO interrupt), and we can use it only if no one is receiving
  * AAL0 traffic (since they will use the same queue) - according to the
  * docs we shouldn't even use it for AAL0 traffic
  */
diff --git a/drivers/atm/solos-pci.c b/drivers/atm/solos-pci.c
index 25ef1a4556e6..cd0ff66469b2 100644
--- a/drivers/atm/solos-pci.c
+++ b/drivers/atm/solos-pci.c
@@ -165,7 +165,6 @@ static uint32_t fpga_tx(struct solos_card *);
 static irqreturn_t solos_irq(int irq, void *dev_id);
 static struct atm_vcc* find_vcc(struct atm_dev *dev, short vpi, int vci);
 static int list_vccs(int vci);
-static void release_vccs(struct atm_dev *dev);
 static int atm_init(struct solos_card *, struct device *);
 static void atm_remove(struct solos_card *);
 static int send_command(struct solos_card *card, int dev, const char *buf, size_t size);
@@ -384,7 +383,6 @@ static int process_status(struct solos_card *card, int port, struct sk_buff *skb
 	/* Anything but 'Showtime' is down */
 	if (strcmp(state_str, "Showtime")) {
 		atm_dev_signal_change(card->atmdev[port], ATM_PHY_SIG_LOST);
-		release_vccs(card->atmdev[port]);
 		dev_info(&card->dev->dev, "Port %d: %s\n", port, state_str);
 		return 0;
 	}
@@ -697,7 +695,7 @@ void solos_bh(unsigned long card_arg)
 					      size);
 			}
 			if (atmdebug) {
-				dev_info(&card->dev->dev, "Received: device %d\n", port);
+				dev_info(&card->dev->dev, "Received: port %d\n", port);
 				dev_info(&card->dev->dev, "size: %d VPI: %d VCI: %d\n",
 					 size, le16_to_cpu(header->vpi),
 					 le16_to_cpu(header->vci));
@@ -710,8 +708,8 @@ void solos_bh(unsigned long card_arg)
 					       le16_to_cpu(header->vci));
 				if (!vcc) {
 					if (net_ratelimit())
-						dev_warn(&card->dev->dev, "Received packet for unknown VCI.VPI %d.%d on port %d\n",
-							 le16_to_cpu(header->vci), le16_to_cpu(header->vpi),
+						dev_warn(&card->dev->dev, "Received packet for unknown VPI.VCI %d.%d on port %d\n",
+							 le16_to_cpu(header->vpi), le16_to_cpu(header->vci),
 							 port);
 					continue;
 				}
@@ -830,28 +828,6 @@ static int list_vccs(int vci)
 	return num_found;
 }
 
-static void release_vccs(struct atm_dev *dev)
-{
-        int i;
-
-        write_lock_irq(&vcc_sklist_lock);
-        for (i = 0; i < VCC_HTABLE_SIZE; i++) {
-                struct hlist_head *head = &vcc_hash[i];
-                struct hlist_node *node, *tmp;
-                struct sock *s;
-                struct atm_vcc *vcc;
-
-                sk_for_each_safe(s, node, tmp, head) {
-                        vcc = atm_sk(s);
-                        if (vcc->dev == dev) {
-                                vcc_release_async(vcc, -EPIPE);
-                                sk_del_node_init(s);
-                        }
-                }
-        }
-        write_unlock_irq(&vcc_sklist_lock);
-}
-
 
 static int popen(struct atm_vcc *vcc)
 {
@@ -1018,8 +994,15 @@ static uint32_t fpga_tx(struct solos_card *card)
 
 			/* Clean up and free oldskb now it's gone */
 			if (atmdebug) {
+				struct pkt_hdr *header = (void *)oldskb->data;
+				int size = le16_to_cpu(header->size);
+
+				skb_pull(oldskb, sizeof(*header));
 				dev_info(&card->dev->dev, "Transmitted: port %d\n",
 					 port);
+				dev_info(&card->dev->dev, "size: %d VPI: %d VCI: %d\n",
+					 size, le16_to_cpu(header->vpi),
+					 le16_to_cpu(header->vci));
 				print_buffer(oldskb);
 			}
 
@@ -1262,7 +1245,7 @@ static int atm_init(struct solos_card *card, struct device *parent)
 		card->atmdev[i]->ci_range.vci_bits = 16;
 		card->atmdev[i]->dev_data = card;
 		card->atmdev[i]->phy_data = (void *)(unsigned long)i;
-		atm_dev_signal_change(card->atmdev[i], ATM_PHY_SIG_UNKNOWN);
+		atm_dev_signal_change(card->atmdev[i], ATM_PHY_SIG_FOUND);
 
 		skb = alloc_skb(sizeof(*header), GFP_ATOMIC);
 		if (!skb) {
diff --git a/drivers/auxdisplay/cfag12864b.c b/drivers/auxdisplay/cfag12864b.c
index 49758593a5ba..41ce4bd96813 100644
--- a/drivers/auxdisplay/cfag12864b.c
+++ b/drivers/auxdisplay/cfag12864b.c
@@ -49,7 +49,7 @@
 static unsigned int cfag12864b_rate = CONFIG_CFAG12864B_RATE;
 module_param(cfag12864b_rate, uint, S_IRUGO);
 MODULE_PARM_DESC(cfag12864b_rate,
-	"Refresh rate (hertzs)");
+	"Refresh rate (hertz)");
 
 unsigned int cfag12864b_getrate(void)
 {
@@ -60,7 +60,7 @@ unsigned int cfag12864b_getrate(void)
  * cfag12864b Commands
  *
  *	E = Enable signal
- *		Everytime E switch from low to high,
+ *		Every time E switch from low to high,
  *		cfag12864b/ks0108 reads the command/data.
  *
  *	CS1 = First ks0108controller.
diff --git a/drivers/base/Kconfig b/drivers/base/Kconfig
index d57e8d0fb823..e9e5238f3106 100644
--- a/drivers/base/Kconfig
+++ b/drivers/base/Kconfig
@@ -168,4 +168,11 @@ config SYS_HYPERVISOR
 	bool
 	default n
 
+config ARCH_NO_SYSDEV_OPS
+	bool
+	---help---
+	  To be selected by architectures that don't use sysdev class or
+	  sysdev driver power management (suspend/resume) and shutdown
+	  operations.
+
 endmenu
diff --git a/drivers/base/power/runtime.c b/drivers/base/power/runtime.c
index 54597c859ecb..3172c60d23a9 100644
--- a/drivers/base/power/runtime.c
+++ b/drivers/base/power/runtime.c
@@ -443,7 +443,7 @@ static int rpm_suspend(struct device *dev, int rpmflags)
  *
  * Check if the device's run-time PM status allows it to be resumed.  Cancel
  * any scheduled or pending requests.  If another resume has been started
- * earlier, either return imediately or wait for it to finish, depending on the
+ * earlier, either return immediately or wait for it to finish, depending on the
  * RPM_NOWAIT and RPM_ASYNC flags.  Similarly, if there's a suspend running in
  * parallel with this function, either tell the other process to resume after
  * suspending (deferred_resume) or wait for it to finish.  If the RPM_ASYNC
diff --git a/drivers/base/sys.c b/drivers/base/sys.c
index f6fb54741602..acde9b5ee131 100644
--- a/drivers/base/sys.c
+++ b/drivers/base/sys.c
@@ -197,7 +197,7 @@ kset_put:
 }
 
 /**
- *	sysdev_driver_register - Register auxillary driver
+ *	sysdev_driver_register - Register auxiliary driver
  *	@cls:	Device class driver belongs to.
  *	@drv:	Driver.
  *
@@ -250,7 +250,7 @@ unlock:
 }
 
 /**
- *	sysdev_driver_unregister - Remove an auxillary driver.
+ *	sysdev_driver_unregister - Remove an auxiliary driver.
  *	@cls:	Class driver belongs to.
  *	@drv:	Driver.
  */
@@ -302,7 +302,7 @@ int sysdev_register(struct sys_device *sysdev)
 		 * code that should have called us.
 		 */
 
-		/* Notify class auxillary drivers */
+		/* Notify class auxiliary drivers */
 		list_for_each_entry(drv, &cls->drivers, entry) {
 			if (drv->add)
 				drv->add(sysdev);
@@ -329,13 +329,13 @@ void sysdev_unregister(struct sys_device *sysdev)
 }
 
 
-
+#ifndef CONFIG_ARCH_NO_SYSDEV_OPS
 /**
  *	sysdev_shutdown - Shut down all system devices.
  *
  *	Loop over each class of system devices, and the devices in each
  *	of those classes. For each device, we call the shutdown method for
- *	each driver registered for the device - the auxillaries,
+ *	each driver registered for the device - the auxiliaries,
  *	and the class driver.
  *
  *	Note: The list is iterated in reverse order, so that we shut down
@@ -360,7 +360,7 @@ void sysdev_shutdown(void)
 			struct sysdev_driver *drv;
 			pr_debug(" %s\n", kobject_name(&sysdev->kobj));
 
-			/* Call auxillary drivers first */
+			/* Call auxiliary drivers first */
 			list_for_each_entry(drv, &cls->drivers, entry) {
 				if (drv->shutdown)
 					drv->shutdown(sysdev);
@@ -385,7 +385,7 @@ static void __sysdev_resume(struct sys_device *dev)
 	WARN_ONCE(!irqs_disabled(),
 		"Interrupts enabled after %pF\n", cls->resume);
 
-	/* Call auxillary drivers next. */
+	/* Call auxiliary drivers next. */
 	list_for_each_entry(drv, &cls->drivers, entry) {
 		if (drv->resume)
 			drv->resume(dev);
@@ -432,7 +432,7 @@ int sysdev_suspend(pm_message_t state)
 		list_for_each_entry(sysdev, &cls->kset.list, kobj.entry) {
 			pr_debug(" %s\n", kobject_name(&sysdev->kobj));
 
-			/* Call auxillary drivers first */
+			/* Call auxiliary drivers first */
 			list_for_each_entry(drv, &cls->drivers, entry) {
 				if (drv->suspend) {
 					ret = drv->suspend(sysdev, state);
@@ -524,6 +524,7 @@ int sysdev_resume(void)
 	return 0;
 }
 EXPORT_SYMBOL_GPL(sysdev_resume);
+#endif /* CONFIG_ARCH_NO_SYSDEV_OPS */
 
 int __init system_bus_init(void)
 {
diff --git a/drivers/block/DAC960.c b/drivers/block/DAC960.c
index 79882104e431..8066d086578a 100644
--- a/drivers/block/DAC960.c
+++ b/drivers/block/DAC960.c
@@ -1790,7 +1790,7 @@ static bool DAC960_V2_ReadControllerConfiguration(DAC960_Controller_T
   unsigned short LogicalDeviceNumber = 0;
   int ModelNameLength;
 
-  /* Get data into dma-able area, then copy into permanant location */
+  /* Get data into dma-able area, then copy into permanent location */
   if (!DAC960_V2_NewControllerInfo(Controller))
     return DAC960_Failure(Controller, "GET CONTROLLER INFO");
   memcpy(ControllerInfo, Controller->V2.NewControllerInformation,
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index 35658f445fca..9bf13988f1a2 100644
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -193,7 +193,7 @@ static int __devinit cciss_find_cfg_addrs(struct pci_dev *pdev,
 	u64 *cfg_offset);
 static int __devinit cciss_pci_find_memory_BAR(struct pci_dev *pdev,
 	unsigned long *memory_bar);
-
+static inline u32 cciss_tag_discard_error_bits(ctlr_info_t *h, u32 tag);
 
 /* performant mode helper functions */
 static void  calc_bucket_map(int *bucket, int num_buckets, int nsgs,
@@ -231,7 +231,7 @@ static const struct block_device_operations cciss_fops = {
  */
 static void set_performant_mode(ctlr_info_t *h, CommandList_struct *c)
 {
-	if (likely(h->transMethod == CFGTBL_Trans_Performant))
+	if (likely(h->transMethod & CFGTBL_Trans_Performant))
 		c->busaddr |= 1 | (h->blockFetchTable[c->Header.SGList] << 1);
 }
 
@@ -556,6 +556,44 @@ static void __devinit cciss_procinit(ctlr_info_t *h)
 #define to_hba(n) container_of(n, struct ctlr_info, dev)
 #define to_drv(n) container_of(n, drive_info_struct, dev)
 
+/* List of controllers which cannot be reset on kexec with reset_devices */
+static u32 unresettable_controller[] = {
+	0x324a103C, /* Smart Array P712m */
+	0x324b103C, /* SmartArray P711m */
+	0x3223103C, /* Smart Array P800 */
+	0x3234103C, /* Smart Array P400 */
+	0x3235103C, /* Smart Array P400i */
+	0x3211103C, /* Smart Array E200i */
+	0x3212103C, /* Smart Array E200 */
+	0x3213103C, /* Smart Array E200i */
+	0x3214103C, /* Smart Array E200i */
+	0x3215103C, /* Smart Array E200i */
+	0x3237103C, /* Smart Array E500 */
+	0x323D103C, /* Smart Array P700m */
+	0x409C0E11, /* Smart Array 6400 */
+	0x409D0E11, /* Smart Array 6400 EM */
+};
+
+static int ctlr_is_resettable(struct ctlr_info *h)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(unresettable_controller); i++)
+		if (unresettable_controller[i] == h->board_id)
+			return 0;
+	return 1;
+}
+
+static ssize_t host_show_resettable(struct device *dev,
+				    struct device_attribute *attr,
+				    char *buf)
+{
+	struct ctlr_info *h = to_hba(dev);
+
+	return snprintf(buf, 20, "%d\n", ctlr_is_resettable(h));
+}
+static DEVICE_ATTR(resettable, S_IRUGO, host_show_resettable, NULL);
+
 static ssize_t host_store_rescan(struct device *dev,
 				 struct device_attribute *attr,
 				 const char *buf, size_t count)
@@ -741,6 +779,7 @@ static DEVICE_ATTR(usage_count, S_IRUGO, cciss_show_usage_count, NULL);
 
 static struct attribute *cciss_host_attrs[] = {
 	&dev_attr_rescan.attr,
+	&dev_attr_resettable.attr,
 	NULL
 };
 
@@ -973,8 +1012,8 @@ static void cmd_special_free(ctlr_info_t *h, CommandList_struct *c)
 	temp64.val32.upper = c->ErrDesc.Addr.upper;
 	pci_free_consistent(h->pdev, sizeof(ErrorInfo_struct),
 			    c->err_info, (dma_addr_t) temp64.val);
-	pci_free_consistent(h->pdev, sizeof(CommandList_struct),
-			    c, (dma_addr_t) c->busaddr);
+	pci_free_consistent(h->pdev, sizeof(CommandList_struct), c,
+		(dma_addr_t) cciss_tag_discard_error_bits(h, (u32) c->busaddr));
 }
 
 static inline ctlr_info_t *get_host(struct gendisk *disk)
@@ -1490,8 +1529,7 @@ static int cciss_bigpassthru(ctlr_info_t *h, void __user *argp)
 		return -EINVAL;
 	if (!capable(CAP_SYS_RAWIO))
 		return -EPERM;
-	ioc = (BIG_IOCTL_Command_struct *)
-	    kmalloc(sizeof(*ioc), GFP_KERNEL);
+	ioc = kmalloc(sizeof(*ioc), GFP_KERNEL);
 	if (!ioc) {
 		status = -ENOMEM;
 		goto cleanup1;
@@ -2653,6 +2691,10 @@ static int process_sendcmd_error(ctlr_info_t *h, CommandList_struct *c)
 			c->Request.CDB[0]);
 		return_status = IO_NEEDS_RETRY;
 		break;
+	case CMD_UNABORTABLE:
+		dev_warn(&h->pdev->dev, "cmd unabortable\n");
+		return_status = IO_ERROR;
+		break;
 	default:
 		dev_warn(&h->pdev->dev, "cmd 0x%02x returned "
 		       "unknown status %x\n", c->Request.CDB[0],
@@ -3103,6 +3145,13 @@ static inline void complete_command(ctlr_info_t *h, CommandList_struct *cmd,
 			(cmd->rq->cmd_type == REQ_TYPE_BLOCK_PC) ?
 				DID_PASSTHROUGH : DID_ERROR);
 		break;
+	case CMD_UNABORTABLE:
+		dev_warn(&h->pdev->dev, "cmd %p unabortable\n", cmd);
+		rq->errors = make_status_bytes(SAM_STAT_GOOD,
+			cmd->err_info->CommandStatus, DRIVER_OK,
+			cmd->rq->cmd_type == REQ_TYPE_BLOCK_PC ?
+				DID_PASSTHROUGH : DID_ERROR);
+		break;
 	default:
 		dev_warn(&h->pdev->dev, "cmd %p returned "
 		       "unknown status %x\n", cmd,
@@ -3136,10 +3185,13 @@ static inline u32 cciss_tag_to_index(u32 tag)
 	return tag >> DIRECT_LOOKUP_SHIFT;
 }
 
-static inline u32 cciss_tag_discard_error_bits(u32 tag)
+static inline u32 cciss_tag_discard_error_bits(ctlr_info_t *h, u32 tag)
 {
-#define CCISS_ERROR_BITS 0x03
-	return tag & ~CCISS_ERROR_BITS;
+#define CCISS_PERF_ERROR_BITS ((1 << DIRECT_LOOKUP_SHIFT) - 1)
+#define CCISS_SIMPLE_ERROR_BITS 0x03
+	if (likely(h->transMethod & CFGTBL_Trans_Performant))
+		return tag & ~CCISS_PERF_ERROR_BITS;
+	return tag & ~CCISS_SIMPLE_ERROR_BITS;
 }
 
 static inline void cciss_mark_tag_indexed(u32 *tag)
@@ -3359,7 +3411,7 @@ static inline u32 next_command(ctlr_info_t *h)
 {
 	u32 a;
 
-	if (unlikely(h->transMethod != CFGTBL_Trans_Performant))
+	if (unlikely(!(h->transMethod & CFGTBL_Trans_Performant)))
 		return h->access.command_completed(h);
 
 	if ((*(h->reply_pool_head) & 1) == (h->reply_pool_wraparound)) {
@@ -3394,14 +3446,12 @@ static inline u32 process_indexed_cmd(ctlr_info_t *h, u32 raw_tag)
 /* process completion of a non-indexed command */
 static inline u32 process_nonindexed_cmd(ctlr_info_t *h, u32 raw_tag)
 {
-	u32 tag;
 	CommandList_struct *c = NULL;
 	__u32 busaddr_masked, tag_masked;
 
-	tag = cciss_tag_discard_error_bits(raw_tag);
+	tag_masked = cciss_tag_discard_error_bits(h, raw_tag);
 	list_for_each_entry(c, &h->cmpQ, list) {
-		busaddr_masked = cciss_tag_discard_error_bits(c->busaddr);
-		tag_masked = cciss_tag_discard_error_bits(tag);
+		busaddr_masked = cciss_tag_discard_error_bits(h, c->busaddr);
 		if (busaddr_masked == tag_masked) {
 			finish_cmd(h, c, raw_tag);
 			return next_command(h);
@@ -3753,7 +3803,8 @@ static void __devinit cciss_wait_for_mode_change_ack(ctlr_info_t *h)
 	}
 }
 
-static __devinit void cciss_enter_performant_mode(ctlr_info_t *h)
+static __devinit void cciss_enter_performant_mode(ctlr_info_t *h,
+	u32 use_short_tags)
 {
 	/* This is a bit complicated.  There are 8 registers on
 	 * the controller which we write to to tell it 8 different
@@ -3808,7 +3859,7 @@ static __devinit void cciss_enter_performant_mode(ctlr_info_t *h)
 	writel(0, &h->transtable->RepQCtrAddrHigh32);
 	writel(h->reply_pool_dhandle, &h->transtable->RepQAddr0Low32);
 	writel(0, &h->transtable->RepQAddr0High32);
-	writel(CFGTBL_Trans_Performant,
+	writel(CFGTBL_Trans_Performant | use_short_tags,
 			&(h->cfgtable->HostWrite.TransportRequest));
 
 	writel(CFGTBL_ChangeReq, h->vaddr + SA5_DOORBELL);
@@ -3855,7 +3906,8 @@ static void __devinit cciss_put_controller_into_performant_mode(ctlr_info_t *h)
 	if ((h->reply_pool == NULL) || (h->blockFetchTable == NULL))
 		goto clean_up;
 
-	cciss_enter_performant_mode(h);
+	cciss_enter_performant_mode(h,
+		trans_support & CFGTBL_Trans_use_short_tags);
 
 	/* Change the access methods to the performant access methods */
 	h->access = SA5_performant_access;
diff --git a/drivers/block/cciss.h b/drivers/block/cciss.h
index 579f74918493..554bbd907d14 100644
--- a/drivers/block/cciss.h
+++ b/drivers/block/cciss.h
@@ -222,6 +222,7 @@ static void SA5_submit_command( ctlr_info_t *h, CommandList_struct *c)
 			h->ctlr, c->busaddr);
 #endif /* CCISS_DEBUG */
          writel(c->busaddr, h->vaddr + SA5_REQUEST_PORT_OFFSET);
+	readl(h->vaddr + SA5_REQUEST_PORT_OFFSET);
 	 h->commands_outstanding++;
 	 if ( h->commands_outstanding > h->max_outstanding)
 		h->max_outstanding = h->commands_outstanding;
diff --git a/drivers/block/cciss_cmd.h b/drivers/block/cciss_cmd.h
index 35463d2f0ee7..cd441bef031f 100644
--- a/drivers/block/cciss_cmd.h
+++ b/drivers/block/cciss_cmd.h
@@ -56,6 +56,7 @@
 
 #define CFGTBL_Trans_Simple     0x00000002l
 #define CFGTBL_Trans_Performant 0x00000004l
+#define CFGTBL_Trans_use_short_tags 0x20000000l
 
 #define CFGTBL_BusType_Ultra2   0x00000001l
 #define CFGTBL_BusType_Ultra3   0x00000002l
diff --git a/drivers/block/cciss_scsi.c b/drivers/block/cciss_scsi.c
index 727d0225b7d0..df793803f5ae 100644
--- a/drivers/block/cciss_scsi.c
+++ b/drivers/block/cciss_scsi.c
@@ -824,13 +824,18 @@ static void complete_scsi_command(CommandList_struct *c, int timeout,
 			break;
 			case CMD_UNSOLICITED_ABORT:
 				cmd->result = DID_ABORT << 16;
-				dev_warn(&h->pdev->dev, "%p aborted do to an "
+				dev_warn(&h->pdev->dev, "%p aborted due to an "
 					"unsolicited abort\n", c);
 			break;
 			case CMD_TIMEOUT:
 				cmd->result = DID_TIME_OUT << 16;
 				dev_warn(&h->pdev->dev, "%p timedout\n", c);
 			break;
+			case CMD_UNABORTABLE:
+				cmd->result = DID_ERROR << 16;
+				dev_warn(&h->pdev->dev, "c %p command "
+					"unabortable\n", c);
+			break;
 			default:
 				cmd->result = DID_ERROR << 16;
 				dev_warn(&h->pdev->dev,
@@ -1007,11 +1012,15 @@ cciss_scsi_interpret_error(ctlr_info_t *h, CommandList_struct *c)
 		break;
 		case CMD_UNSOLICITED_ABORT:
 			dev_warn(&h->pdev->dev,
-				"%p aborted do to an unsolicited abort\n", c);
+				"%p aborted due to an unsolicited abort\n", c);
 		break;
 		case CMD_TIMEOUT:
 			dev_warn(&h->pdev->dev, "%p timedout\n", c);
 		break;
+		case CMD_UNABORTABLE:
+			dev_warn(&h->pdev->dev,
+				"%p unabortable\n", c);
+		break;
 		default:
 			dev_warn(&h->pdev->dev,
 				"%p returned unknown status %x\n",
diff --git a/drivers/block/drbd/drbd_actlog.c b/drivers/block/drbd/drbd_actlog.c
index aca302492ff2..c6828b68d77b 100644
--- a/drivers/block/drbd/drbd_actlog.c
+++ b/drivers/block/drbd/drbd_actlog.c
@@ -30,7 +30,7 @@
 
 /* We maintain a trivial check sum in our on disk activity log.
  * With that we can ensure correct operation even when the storage
- * device might do a partial (last) sector write while loosing power.
+ * device might do a partial (last) sector write while losing power.
  */
 struct __packed al_transaction {
 	u32       magic;
@@ -92,7 +92,7 @@ static int _drbd_md_sync_page_io(struct drbd_conf *mdev,
 	bio->bi_end_io = drbd_md_io_complete;
 	bio->bi_rw = rw;
 
-	if (FAULT_ACTIVE(mdev, (rw & WRITE) ? DRBD_FAULT_MD_WR : DRBD_FAULT_MD_RD))
+	if (drbd_insert_fault(mdev, (rw & WRITE) ? DRBD_FAULT_MD_WR : DRBD_FAULT_MD_RD))
 		bio_endio(bio, -EIO);
 	else
 		submit_bio(rw, bio);
@@ -176,13 +176,17 @@ static struct lc_element *_al_get(struct drbd_conf *mdev, unsigned int enr)
 	struct lc_element *al_ext;
 	struct lc_element *tmp;
 	unsigned long     al_flags = 0;
+	int wake;
 
 	spin_lock_irq(&mdev->al_lock);
 	tmp = lc_find(mdev->resync, enr/AL_EXT_PER_BM_SECT);
 	if (unlikely(tmp != NULL)) {
 		struct bm_extent  *bm_ext = lc_entry(tmp, struct bm_extent, lce);
 		if (test_bit(BME_NO_WRITES, &bm_ext->flags)) {
+			wake = !test_and_set_bit(BME_PRIORITY, &bm_ext->flags);
 			spin_unlock_irq(&mdev->al_lock);
+			if (wake)
+				wake_up(&mdev->al_wait);
 			return NULL;
 		}
 	}
@@ -258,6 +262,33 @@ void drbd_al_complete_io(struct drbd_conf *mdev, sector_t sector)
 	spin_unlock_irqrestore(&mdev->al_lock, flags);
 }
 
+#if (PAGE_SHIFT + 3) < (AL_EXTENT_SHIFT - BM_BLOCK_SHIFT)
+/* Currently BM_BLOCK_SHIFT, BM_EXT_SHIFT and AL_EXTENT_SHIFT
+ * are still coupled, or assume too much about their relation.
+ * Code below will not work if this is violated.
+ * Will be cleaned up with some followup patch.
+ */
+# error FIXME
+#endif
+
+static unsigned int al_extent_to_bm_page(unsigned int al_enr)
+{
+	return al_enr >>
+		/* bit to page */
+		((PAGE_SHIFT + 3) -
+		/* al extent number to bit */
+		 (AL_EXTENT_SHIFT - BM_BLOCK_SHIFT));
+}
+
+static unsigned int rs_extent_to_bm_page(unsigned int rs_enr)
+{
+	return rs_enr >>
+		/* bit to page */
+		((PAGE_SHIFT + 3) -
+		/* al extent number to bit */
+		 (BM_EXT_SHIFT - BM_BLOCK_SHIFT));
+}
+
 int
 w_al_write_transaction(struct drbd_conf *mdev, struct drbd_work *w, int unused)
 {
@@ -285,7 +316,7 @@ w_al_write_transaction(struct drbd_conf *mdev, struct drbd_work *w, int unused)
 	 * For now, we must not write the transaction,
 	 * if we cannot write out the bitmap of the evicted extent. */
 	if (mdev->state.conn < C_CONNECTED && evicted != LC_FREE)
-		drbd_bm_write_sect(mdev, evicted/AL_EXT_PER_BM_SECT);
+		drbd_bm_write_page(mdev, al_extent_to_bm_page(evicted));
 
 	/* The bitmap write may have failed, causing a state change. */
 	if (mdev->state.disk < D_INCONSISTENT) {
@@ -334,7 +365,7 @@ w_al_write_transaction(struct drbd_conf *mdev, struct drbd_work *w, int unused)
 		+ mdev->ldev->md.al_offset + mdev->al_tr_pos;
 
 	if (!drbd_md_sync_page_io(mdev, mdev->ldev, sector, WRITE))
-		drbd_chk_io_error(mdev, 1, TRUE);
+		drbd_chk_io_error(mdev, 1, true);
 
 	if (++mdev->al_tr_pos >
 	    div_ceil(mdev->act_log->nr_elements, AL_EXTENTS_PT))
@@ -511,225 +542,6 @@ cancel:
 	return 1;
 }
 
-static void atodb_endio(struct bio *bio, int error)
-{
-	struct drbd_atodb_wait *wc = bio->bi_private;
-	struct drbd_conf *mdev = wc->mdev;
-	struct page *page;
-	int uptodate = bio_flagged(bio, BIO_UPTODATE);
-
-	/* strange behavior of some lower level drivers...
-	 * fail the request by clearing the uptodate flag,
-	 * but do not return any error?! */
-	if (!error && !uptodate)
-		error = -EIO;
-
-	drbd_chk_io_error(mdev, error, TRUE);
-	if (error && wc->error == 0)
-		wc->error = error;
-
-	if (atomic_dec_and_test(&wc->count))
-		complete(&wc->io_done);
-
-	page = bio->bi_io_vec[0].bv_page;
-	put_page(page);
-	bio_put(bio);
-	mdev->bm_writ_cnt++;
-	put_ldev(mdev);
-}
-
-/* sector to word */
-#define S2W(s)	((s)<<(BM_EXT_SHIFT-BM_BLOCK_SHIFT-LN2_BPL))
-
-/* activity log to on disk bitmap -- prepare bio unless that sector
- * is already covered by previously prepared bios */
-static int atodb_prepare_unless_covered(struct drbd_conf *mdev,
-					struct bio **bios,
-					unsigned int enr,
-					struct drbd_atodb_wait *wc) __must_hold(local)
-{
-	struct bio *bio;
-	struct page *page;
-	sector_t on_disk_sector;
-	unsigned int page_offset = PAGE_SIZE;
-	int offset;
-	int i = 0;
-	int err = -ENOMEM;
-
-	/* We always write aligned, full 4k blocks,
-	 * so we can ignore the logical_block_size (for now) */
-	enr &= ~7U;
-	on_disk_sector = enr + mdev->ldev->md.md_offset
-			     + mdev->ldev->md.bm_offset;
-
-	D_ASSERT(!(on_disk_sector & 7U));
-
-	/* Check if that enr is already covered by an already created bio.
-	 * Caution, bios[] is not NULL terminated,
-	 * but only initialized to all NULL.
-	 * For completely scattered activity log,
-	 * the last invocation iterates over all bios,
-	 * and finds the last NULL entry.
-	 */
-	while ((bio = bios[i])) {
-		if (bio->bi_sector == on_disk_sector)
-			return 0;
-		i++;
-	}
-	/* bios[i] == NULL, the next not yet used slot */
-
-	/* GFP_KERNEL, we are not in the write-out path */
-	bio = bio_alloc(GFP_KERNEL, 1);
-	if (bio == NULL)
-		return -ENOMEM;
-
-	if (i > 0) {
-		const struct bio_vec *prev_bv = bios[i-1]->bi_io_vec;
-		page_offset = prev_bv->bv_offset + prev_bv->bv_len;
-		page = prev_bv->bv_page;
-	}
-	if (page_offset == PAGE_SIZE) {
-		page = alloc_page(__GFP_HIGHMEM);
-		if (page == NULL)
-			goto out_bio_put;
-		page_offset = 0;
-	} else {
-		get_page(page);
-	}
-
-	offset = S2W(enr);
-	drbd_bm_get_lel(mdev, offset,
-			min_t(size_t, S2W(8), drbd_bm_words(mdev) - offset),
-			kmap(page) + page_offset);
-	kunmap(page);
-
-	bio->bi_private = wc;
-	bio->bi_end_io = atodb_endio;
-	bio->bi_bdev = mdev->ldev->md_bdev;
-	bio->bi_sector = on_disk_sector;
-
-	if (bio_add_page(bio, page, 4096, page_offset) != 4096)
-		goto out_put_page;
-
-	atomic_inc(&wc->count);
-	/* we already know that we may do this...
-	 * get_ldev_if_state(mdev,D_ATTACHING);
-	 * just get the extra reference, so that the local_cnt reflects
-	 * the number of pending IO requests DRBD at its backing device.
-	 */
-	atomic_inc(&mdev->local_cnt);
-
-	bios[i] = bio;
-
-	return 0;
-
-out_put_page:
-	err = -EINVAL;
-	put_page(page);
-out_bio_put:
-	bio_put(bio);
-	return err;
-}
-
-/**
- * drbd_al_to_on_disk_bm() -  * Writes bitmap parts covered by active AL extents
- * @mdev:	DRBD device.
- *
- * Called when we detach (unconfigure) local storage,
- * or when we go from R_PRIMARY to R_SECONDARY role.
- */
-void drbd_al_to_on_disk_bm(struct drbd_conf *mdev)
-{
-	int i, nr_elements;
-	unsigned int enr;
-	struct bio **bios;
-	struct drbd_atodb_wait wc;
-
-	ERR_IF (!get_ldev_if_state(mdev, D_ATTACHING))
-		return; /* sorry, I don't have any act_log etc... */
-
-	wait_event(mdev->al_wait, lc_try_lock(mdev->act_log));
-
-	nr_elements = mdev->act_log->nr_elements;
-
-	/* GFP_KERNEL, we are not in anyone's write-out path */
-	bios = kzalloc(sizeof(struct bio *) * nr_elements, GFP_KERNEL);
-	if (!bios)
-		goto submit_one_by_one;
-
-	atomic_set(&wc.count, 0);
-	init_completion(&wc.io_done);
-	wc.mdev = mdev;
-	wc.error = 0;
-
-	for (i = 0; i < nr_elements; i++) {
-		enr = lc_element_by_index(mdev->act_log, i)->lc_number;
-		if (enr == LC_FREE)
-			continue;
-		/* next statement also does atomic_inc wc.count and local_cnt */
-		if (atodb_prepare_unless_covered(mdev, bios,
-						enr/AL_EXT_PER_BM_SECT,
-						&wc))
-			goto free_bios_submit_one_by_one;
-	}
-
-	/* unnecessary optimization? */
-	lc_unlock(mdev->act_log);
-	wake_up(&mdev->al_wait);
-
-	/* all prepared, submit them */
-	for (i = 0; i < nr_elements; i++) {
-		if (bios[i] == NULL)
-			break;
-		if (FAULT_ACTIVE(mdev, DRBD_FAULT_MD_WR)) {
-			bios[i]->bi_rw = WRITE;
-			bio_endio(bios[i], -EIO);
-		} else {
-			submit_bio(WRITE, bios[i]);
-		}
-	}
-
-	/* always (try to) flush bitmap to stable storage */
-	drbd_md_flush(mdev);
-
-	/* In case we did not submit a single IO do not wait for
-	 * them to complete. ( Because we would wait forever here. )
-	 *
-	 * In case we had IOs and they are already complete, there
-	 * is not point in waiting anyways.
-	 * Therefore this if () ... */
-	if (atomic_read(&wc.count))
-		wait_for_completion(&wc.io_done);
-
-	put_ldev(mdev);
-
-	kfree(bios);
-	return;
-
- free_bios_submit_one_by_one:
-	/* free everything by calling the endio callback directly. */
-	for (i = 0; i < nr_elements && bios[i]; i++)
-		bio_endio(bios[i], 0);
-
-	kfree(bios);
-
- submit_one_by_one:
-	dev_warn(DEV, "Using the slow drbd_al_to_on_disk_bm()\n");
-
-	for (i = 0; i < mdev->act_log->nr_elements; i++) {
-		enr = lc_element_by_index(mdev->act_log, i)->lc_number;
-		if (enr == LC_FREE)
-			continue;
-		/* Really slow: if we have al-extents 16..19 active,
-		 * sector 4 will be written four times! Synchronous! */
-		drbd_bm_write_sect(mdev, enr/AL_EXT_PER_BM_SECT);
-	}
-
-	lc_unlock(mdev->act_log);
-	wake_up(&mdev->al_wait);
-	put_ldev(mdev);
-}
-
 /**
  * drbd_al_apply_to_bm() - Sets the bitmap to diry(1) where covered ba active AL extents
  * @mdev:	DRBD device.
@@ -809,7 +621,7 @@ static int w_update_odbm(struct drbd_conf *mdev, struct drbd_work *w, int unused
 		return 1;
 	}
 
-	drbd_bm_write_sect(mdev, udw->enr);
+	drbd_bm_write_page(mdev, rs_extent_to_bm_page(udw->enr));
 	put_ldev(mdev);
 
 	kfree(udw);
@@ -889,7 +701,6 @@ static void drbd_try_clear_on_disk_bm(struct drbd_conf *mdev, sector_t sector,
 				dev_warn(DEV, "Kicking resync_lru element enr=%u "
 				     "out with rs_failed=%d\n",
 				     ext->lce.lc_number, ext->rs_failed);
-				set_bit(WRITE_BM_AFTER_RESYNC, &mdev->flags);
 			}
 			ext->rs_left = rs_left;
 			ext->rs_failed = success ? 0 : count;
@@ -908,7 +719,6 @@ static void drbd_try_clear_on_disk_bm(struct drbd_conf *mdev, sector_t sector,
 				drbd_queue_work_front(&mdev->data.work, &udw->w);
 			} else {
 				dev_warn(DEV, "Could not kmalloc an udw\n");
-				set_bit(WRITE_BM_AFTER_RESYNC, &mdev->flags);
 			}
 		}
 	} else {
@@ -919,6 +729,22 @@ static void drbd_try_clear_on_disk_bm(struct drbd_conf *mdev, sector_t sector,
 	}
 }
 
+void drbd_advance_rs_marks(struct drbd_conf *mdev, unsigned long still_to_go)
+{
+	unsigned long now = jiffies;
+	unsigned long last = mdev->rs_mark_time[mdev->rs_last_mark];
+	int next = (mdev->rs_last_mark + 1) % DRBD_SYNC_MARKS;
+	if (time_after_eq(now, last + DRBD_SYNC_MARK_STEP)) {
+		if (mdev->rs_mark_left[mdev->rs_last_mark] != still_to_go &&
+		    mdev->state.conn != C_PAUSED_SYNC_T &&
+		    mdev->state.conn != C_PAUSED_SYNC_S) {
+			mdev->rs_mark_time[next] = now;
+			mdev->rs_mark_left[next] = still_to_go;
+			mdev->rs_last_mark = next;
+		}
+	}
+}
+
 /* clear the bit corresponding to the piece of storage in question:
  * size byte of data starting from sector.  Only clear a bits of the affected
  * one ore more _aligned_ BM_BLOCK_SIZE blocks.
@@ -936,7 +762,7 @@ void __drbd_set_in_sync(struct drbd_conf *mdev, sector_t sector, int size,
 	int wake_up = 0;
 	unsigned long flags;
 
-	if (size <= 0 || (size & 0x1ff) != 0 || size > DRBD_MAX_SEGMENT_SIZE) {
+	if (size <= 0 || (size & 0x1ff) != 0 || size > DRBD_MAX_BIO_SIZE) {
 		dev_err(DEV, "drbd_set_in_sync: sector=%llus size=%d nonsense!\n",
 				(unsigned long long)sector, size);
 		return;
@@ -969,21 +795,9 @@ void __drbd_set_in_sync(struct drbd_conf *mdev, sector_t sector, int size,
 	 */
 	count = drbd_bm_clear_bits(mdev, sbnr, ebnr);
 	if (count && get_ldev(mdev)) {
-		unsigned long now = jiffies;
-		unsigned long last = mdev->rs_mark_time[mdev->rs_last_mark];
-		int next = (mdev->rs_last_mark + 1) % DRBD_SYNC_MARKS;
-		if (time_after_eq(now, last + DRBD_SYNC_MARK_STEP)) {
-			unsigned long tw = drbd_bm_total_weight(mdev);
-			if (mdev->rs_mark_left[mdev->rs_last_mark] != tw &&
-			    mdev->state.conn != C_PAUSED_SYNC_T &&
-			    mdev->state.conn != C_PAUSED_SYNC_S) {
-				mdev->rs_mark_time[next] = now;
-				mdev->rs_mark_left[next] = tw;
-				mdev->rs_last_mark = next;
-			}
-		}
+		drbd_advance_rs_marks(mdev, drbd_bm_total_weight(mdev));
 		spin_lock_irqsave(&mdev->al_lock, flags);
-		drbd_try_clear_on_disk_bm(mdev, sector, count, TRUE);
+		drbd_try_clear_on_disk_bm(mdev, sector, count, true);
 		spin_unlock_irqrestore(&mdev->al_lock, flags);
 
 		/* just wake_up unconditional now, various lc_chaged(),
@@ -998,27 +812,27 @@ void __drbd_set_in_sync(struct drbd_conf *mdev, sector_t sector, int size,
 /*
  * this is intended to set one request worth of data out of sync.
  * affects at least 1 bit,
- * and at most 1+DRBD_MAX_SEGMENT_SIZE/BM_BLOCK_SIZE bits.
+ * and at most 1+DRBD_MAX_BIO_SIZE/BM_BLOCK_SIZE bits.
  *
  * called by tl_clear and drbd_send_dblock (==drbd_make_request).
  * so this can be _any_ process.
  */
-void __drbd_set_out_of_sync(struct drbd_conf *mdev, sector_t sector, int size,
+int __drbd_set_out_of_sync(struct drbd_conf *mdev, sector_t sector, int size,
 			    const char *file, const unsigned int line)
 {
 	unsigned long sbnr, ebnr, lbnr, flags;
 	sector_t esector, nr_sectors;
-	unsigned int enr, count;
+	unsigned int enr, count = 0;
 	struct lc_element *e;
 
-	if (size <= 0 || (size & 0x1ff) != 0 || size > DRBD_MAX_SEGMENT_SIZE) {
+	if (size <= 0 || (size & 0x1ff) != 0 || size > DRBD_MAX_BIO_SIZE) {
 		dev_err(DEV, "sector: %llus, size: %d\n",
 			(unsigned long long)sector, size);
-		return;
+		return 0;
 	}
 
 	if (!get_ldev(mdev))
-		return; /* no disk, no metadata, no bitmap to set bits in */
+		return 0; /* no disk, no metadata, no bitmap to set bits in */
 
 	nr_sectors = drbd_get_capacity(mdev->this_bdev);
 	esector = sector + (size >> 9) - 1;
@@ -1048,6 +862,8 @@ void __drbd_set_out_of_sync(struct drbd_conf *mdev, sector_t sector, int size,
 
 out:
 	put_ldev(mdev);
+
+	return count;
 }
 
 static
@@ -1128,7 +944,10 @@ int drbd_rs_begin_io(struct drbd_conf *mdev, sector_t sector)
 	unsigned int enr = BM_SECT_TO_EXT(sector);
 	struct bm_extent *bm_ext;
 	int i, sig;
+	int sa = 200; /* Step aside 200 times, then grab the extent and let app-IO wait.
+			 200 times -> 20 seconds. */
 
+retry:
 	sig = wait_event_interruptible(mdev->al_wait,
 			(bm_ext = _bme_get(mdev, enr)));
 	if (sig)
@@ -1139,16 +958,25 @@ int drbd_rs_begin_io(struct drbd_conf *mdev, sector_t sector)
 
 	for (i = 0; i < AL_EXT_PER_BM_SECT; i++) {
 		sig = wait_event_interruptible(mdev->al_wait,
-				!_is_in_al(mdev, enr * AL_EXT_PER_BM_SECT + i));
-		if (sig) {
+					       !_is_in_al(mdev, enr * AL_EXT_PER_BM_SECT + i) ||
+					       test_bit(BME_PRIORITY, &bm_ext->flags));
+
+		if (sig || (test_bit(BME_PRIORITY, &bm_ext->flags) && sa)) {
 			spin_lock_irq(&mdev->al_lock);
 			if (lc_put(mdev->resync, &bm_ext->lce) == 0) {
-				clear_bit(BME_NO_WRITES, &bm_ext->flags);
+				bm_ext->flags = 0; /* clears BME_NO_WRITES and eventually BME_PRIORITY */
 				mdev->resync_locked--;
 				wake_up(&mdev->al_wait);
 			}
 			spin_unlock_irq(&mdev->al_lock);
-			return -EINTR;
+			if (sig)
+				return -EINTR;
+			if (schedule_timeout_interruptible(HZ/10))
+				return -EINTR;
+			if (sa && --sa == 0)
+				dev_warn(DEV,"drbd_rs_begin_io() stepped aside for 20sec."
+					 "Resync stalled?\n");
+			goto retry;
 		}
 	}
 	set_bit(BME_LOCKED, &bm_ext->flags);
@@ -1291,8 +1119,7 @@ void drbd_rs_complete_io(struct drbd_conf *mdev, sector_t sector)
 	}
 
 	if (lc_put(mdev->resync, &bm_ext->lce) == 0) {
-		clear_bit(BME_LOCKED, &bm_ext->flags);
-		clear_bit(BME_NO_WRITES, &bm_ext->flags);
+		bm_ext->flags = 0; /* clear BME_LOCKED, BME_NO_WRITES and BME_PRIORITY */
 		mdev->resync_locked--;
 		wake_up(&mdev->al_wait);
 	}
@@ -1383,7 +1210,7 @@ void drbd_rs_failed_io(struct drbd_conf *mdev, sector_t sector, int size)
 	sector_t esector, nr_sectors;
 	int wake_up = 0;
 
-	if (size <= 0 || (size & 0x1ff) != 0 || size > DRBD_MAX_SEGMENT_SIZE) {
+	if (size <= 0 || (size & 0x1ff) != 0 || size > DRBD_MAX_BIO_SIZE) {
 		dev_err(DEV, "drbd_rs_failed_io: sector=%llus size=%d nonsense!\n",
 				(unsigned long long)sector, size);
 		return;
@@ -1420,7 +1247,7 @@ void drbd_rs_failed_io(struct drbd_conf *mdev, sector_t sector, int size)
 		mdev->rs_failed += count;
 
 		if (get_ldev(mdev)) {
-			drbd_try_clear_on_disk_bm(mdev, sector, count, FALSE);
+			drbd_try_clear_on_disk_bm(mdev, sector, count, false);
 			put_ldev(mdev);
 		}
 
diff --git a/drivers/block/drbd/drbd_bitmap.c b/drivers/block/drbd/drbd_bitmap.c
index 0645ca829a94..76210ba401ac 100644
--- a/drivers/block/drbd/drbd_bitmap.c
+++ b/drivers/block/drbd/drbd_bitmap.c
@@ -28,18 +28,56 @@
 #include <linux/drbd.h>
 #include <linux/slab.h>
 #include <asm/kmap_types.h>
+
 #include "drbd_int.h"
 
+
 /* OPAQUE outside this file!
  * interface defined in drbd_int.h
 
  * convention:
  * function name drbd_bm_... => used elsewhere, "public".
  * function name      bm_... => internal to implementation, "private".
+ */
 
- * Note that since find_first_bit returns int, at the current granularity of
- * the bitmap (4KB per byte), this implementation "only" supports up to
- * 1<<(32+12) == 16 TB...
+
+/*
+ * LIMITATIONS:
+ * We want to support >= peta byte of backend storage, while for now still using
+ * a granularity of one bit per 4KiB of storage.
+ * 1 << 50		bytes backend storage (1 PiB)
+ * 1 << (50 - 12)	bits needed
+ *	38 --> we need u64 to index and count bits
+ * 1 << (38 - 3)	bitmap bytes needed
+ *	35 --> we still need u64 to index and count bytes
+ *			(that's 32 GiB of bitmap for 1 PiB storage)
+ * 1 << (35 - 2)	32bit longs needed
+ *	33 --> we'd even need u64 to index and count 32bit long words.
+ * 1 << (35 - 3)	64bit longs needed
+ *	32 --> we could get away with a 32bit unsigned int to index and count
+ *	64bit long words, but I rather stay with unsigned long for now.
+ *	We probably should neither count nor point to bytes or long words
+ *	directly, but either by bitnumber, or by page index and offset.
+ * 1 << (35 - 12)
+ *	22 --> we need that much 4KiB pages of bitmap.
+ *	1 << (22 + 3) --> on a 64bit arch,
+ *	we need 32 MiB to store the array of page pointers.
+ *
+ * Because I'm lazy, and because the resulting patch was too large, too ugly
+ * and still incomplete, on 32bit we still "only" support 16 TiB (minus some),
+ * (1 << 32) bits * 4k storage.
+ *
+
+ * bitmap storage and IO:
+ *	Bitmap is stored little endian on disk, and is kept little endian in
+ *	core memory. Currently we still hold the full bitmap in core as long
+ *	as we are "attached" to a local disk, which at 32 GiB for 1PiB storage
+ *	seems excessive.
+ *
+ *	We plan to reduce the amount of in-core bitmap pages by pageing them in
+ *	and out against their on-disk location as necessary, but need to make
+ *	sure we don't cause too much meta data IO, and must not deadlock in
+ *	tight memory situations. This needs some more work.
  */
 
 /*
@@ -55,13 +93,9 @@
 struct drbd_bitmap {
 	struct page **bm_pages;
 	spinlock_t bm_lock;
-	/* WARNING unsigned long bm_*:
-	 * 32bit number of bit offset is just enough for 512 MB bitmap.
-	 * it will blow up if we make the bitmap bigger...
-	 * not that it makes much sense to have a bitmap that large,
-	 * rather change the granularity to 16k or 64k or something.
-	 * (that implies other problems, however...)
-	 */
+
+	/* see LIMITATIONS: above */
+
 	unsigned long bm_set;       /* nr of set bits; THINK maybe atomic_t? */
 	unsigned long bm_bits;
 	size_t   bm_words;
@@ -69,29 +103,18 @@ struct drbd_bitmap {
 	sector_t bm_dev_capacity;
 	struct mutex bm_change; /* serializes resize operations */
 
-	atomic_t bm_async_io;
-	wait_queue_head_t bm_io_wait;
+	wait_queue_head_t bm_io_wait; /* used to serialize IO of single pages */
 
-	unsigned long  bm_flags;
+	enum bm_flag bm_flags;
 
 	/* debugging aid, in case we are still racy somewhere */
 	char          *bm_why;
 	struct task_struct *bm_task;
 };
 
-/* definition of bits in bm_flags */
-#define BM_LOCKED       0
-#define BM_MD_IO_ERROR  1
-#define BM_P_VMALLOCED  2
-
 static int __bm_change_bits_to(struct drbd_conf *mdev, const unsigned long s,
 			       unsigned long e, int val, const enum km_type km);
 
-static int bm_is_locked(struct drbd_bitmap *b)
-{
-	return test_bit(BM_LOCKED, &b->bm_flags);
-}
-
 #define bm_print_lock_info(m) __bm_print_lock_info(m, __func__)
 static void __bm_print_lock_info(struct drbd_conf *mdev, const char *func)
 {
@@ -108,7 +131,7 @@ static void __bm_print_lock_info(struct drbd_conf *mdev, const char *func)
 	    b->bm_task == mdev->worker.task   ? "worker"   : "?");
 }
 
-void drbd_bm_lock(struct drbd_conf *mdev, char *why)
+void drbd_bm_lock(struct drbd_conf *mdev, char *why, enum bm_flag flags)
 {
 	struct drbd_bitmap *b = mdev->bitmap;
 	int trylock_failed;
@@ -131,8 +154,9 @@ void drbd_bm_lock(struct drbd_conf *mdev, char *why)
 		    b->bm_task == mdev->worker.task   ? "worker"   : "?");
 		mutex_lock(&b->bm_change);
 	}
-	if (__test_and_set_bit(BM_LOCKED, &b->bm_flags))
+	if (BM_LOCKED_MASK & b->bm_flags)
 		dev_err(DEV, "FIXME bitmap already locked in bm_lock\n");
+	b->bm_flags |= flags & BM_LOCKED_MASK;
 
 	b->bm_why  = why;
 	b->bm_task = current;
@@ -146,31 +170,137 @@ void drbd_bm_unlock(struct drbd_conf *mdev)
 		return;
 	}
 
-	if (!__test_and_clear_bit(BM_LOCKED, &mdev->bitmap->bm_flags))
+	if (!(BM_LOCKED_MASK & mdev->bitmap->bm_flags))
 		dev_err(DEV, "FIXME bitmap not locked in bm_unlock\n");
 
+	b->bm_flags &= ~BM_LOCKED_MASK;
 	b->bm_why  = NULL;
 	b->bm_task = NULL;
 	mutex_unlock(&b->bm_change);
 }
 
-/* word offset to long pointer */
-static unsigned long *__bm_map_paddr(struct drbd_bitmap *b, unsigned long offset, const enum km_type km)
+/* we store some "meta" info about our pages in page->private */
+/* at a granularity of 4k storage per bitmap bit:
+ * one peta byte storage: 1<<50 byte, 1<<38 * 4k storage blocks
+ *  1<<38 bits,
+ *  1<<23 4k bitmap pages.
+ * Use 24 bits as page index, covers 2 peta byte storage
+ * at a granularity of 4k per bit.
+ * Used to report the failed page idx on io error from the endio handlers.
+ */
+#define BM_PAGE_IDX_MASK	((1UL<<24)-1)
+/* this page is currently read in, or written back */
+#define BM_PAGE_IO_LOCK		31
+/* if there has been an IO error for this page */
+#define BM_PAGE_IO_ERROR	30
+/* this is to be able to intelligently skip disk IO,
+ * set if bits have been set since last IO. */
+#define BM_PAGE_NEED_WRITEOUT	29
+/* to mark for lazy writeout once syncer cleared all clearable bits,
+ * we if bits have been cleared since last IO. */
+#define BM_PAGE_LAZY_WRITEOUT	28
+
+/* store_page_idx uses non-atomic assingment. It is only used directly after
+ * allocating the page.  All other bm_set_page_* and bm_clear_page_* need to
+ * use atomic bit manipulation, as set_out_of_sync (and therefore bitmap
+ * changes) may happen from various contexts, and wait_on_bit/wake_up_bit
+ * requires it all to be atomic as well. */
+static void bm_store_page_idx(struct page *page, unsigned long idx)
+{
+	BUG_ON(0 != (idx & ~BM_PAGE_IDX_MASK));
+	page_private(page) |= idx;
+}
+
+static unsigned long bm_page_to_idx(struct page *page)
 {
-	struct page *page;
-	unsigned long page_nr;
+	return page_private(page) & BM_PAGE_IDX_MASK;
+}
+
+/* As is very unlikely that the same page is under IO from more than one
+ * context, we can get away with a bit per page and one wait queue per bitmap.
+ */
+static void bm_page_lock_io(struct drbd_conf *mdev, int page_nr)
+{
+	struct drbd_bitmap *b = mdev->bitmap;
+	void *addr = &page_private(b->bm_pages[page_nr]);
+	wait_event(b->bm_io_wait, !test_and_set_bit(BM_PAGE_IO_LOCK, addr));
+}
+
+static void bm_page_unlock_io(struct drbd_conf *mdev, int page_nr)
+{
+	struct drbd_bitmap *b = mdev->bitmap;
+	void *addr = &page_private(b->bm_pages[page_nr]);
+	clear_bit(BM_PAGE_IO_LOCK, addr);
+	smp_mb__after_clear_bit();
+	wake_up(&mdev->bitmap->bm_io_wait);
+}
+
+/* set _before_ submit_io, so it may be reset due to being changed
+ * while this page is in flight... will get submitted later again */
+static void bm_set_page_unchanged(struct page *page)
+{
+	/* use cmpxchg? */
+	clear_bit(BM_PAGE_NEED_WRITEOUT, &page_private(page));
+	clear_bit(BM_PAGE_LAZY_WRITEOUT, &page_private(page));
+}
 
+static void bm_set_page_need_writeout(struct page *page)
+{
+	set_bit(BM_PAGE_NEED_WRITEOUT, &page_private(page));
+}
+
+static int bm_test_page_unchanged(struct page *page)
+{
+	volatile const unsigned long *addr = &page_private(page);
+	return (*addr & ((1UL<<BM_PAGE_NEED_WRITEOUT)|(1UL<<BM_PAGE_LAZY_WRITEOUT))) == 0;
+}
+
+static void bm_set_page_io_err(struct page *page)
+{
+	set_bit(BM_PAGE_IO_ERROR, &page_private(page));
+}
+
+static void bm_clear_page_io_err(struct page *page)
+{
+	clear_bit(BM_PAGE_IO_ERROR, &page_private(page));
+}
+
+static void bm_set_page_lazy_writeout(struct page *page)
+{
+	set_bit(BM_PAGE_LAZY_WRITEOUT, &page_private(page));
+}
+
+static int bm_test_page_lazy_writeout(struct page *page)
+{
+	return test_bit(BM_PAGE_LAZY_WRITEOUT, &page_private(page));
+}
+
+/* on a 32bit box, this would allow for exactly (2<<38) bits. */
+static unsigned int bm_word_to_page_idx(struct drbd_bitmap *b, unsigned long long_nr)
+{
 	/* page_nr = (word*sizeof(long)) >> PAGE_SHIFT; */
-	page_nr = offset >> (PAGE_SHIFT - LN2_BPL + 3);
+	unsigned int page_nr = long_nr >> (PAGE_SHIFT - LN2_BPL + 3);
 	BUG_ON(page_nr >= b->bm_number_of_pages);
-	page = b->bm_pages[page_nr];
+	return page_nr;
+}
 
+static unsigned int bm_bit_to_page_idx(struct drbd_bitmap *b, u64 bitnr)
+{
+	/* page_nr = (bitnr/8) >> PAGE_SHIFT; */
+	unsigned int page_nr = bitnr >> (PAGE_SHIFT + 3);
+	BUG_ON(page_nr >= b->bm_number_of_pages);
+	return page_nr;
+}
+
+static unsigned long *__bm_map_pidx(struct drbd_bitmap *b, unsigned int idx, const enum km_type km)
+{
+	struct page *page = b->bm_pages[idx];
 	return (unsigned long *) kmap_atomic(page, km);
 }
 
-static unsigned long * bm_map_paddr(struct drbd_bitmap *b, unsigned long offset)
+static unsigned long *bm_map_pidx(struct drbd_bitmap *b, unsigned int idx)
 {
-	return __bm_map_paddr(b, offset, KM_IRQ1);
+	return __bm_map_pidx(b, idx, KM_IRQ1);
 }
 
 static void __bm_unmap(unsigned long *p_addr, const enum km_type km)
@@ -202,6 +332,7 @@ static void bm_unmap(unsigned long *p_addr)
  * to be able to report device specific.
  */
 
+
 static void bm_free_pages(struct page **pages, unsigned long number)
 {
 	unsigned long i;
@@ -269,6 +400,9 @@ static struct page **bm_realloc_pages(struct drbd_bitmap *b, unsigned long want)
 				bm_vk_free(new_pages, vmalloced);
 				return NULL;
 			}
+			/* we want to know which page it is
+			 * from the endio handlers */
+			bm_store_page_idx(page, i);
 			new_pages[i] = page;
 		}
 	} else {
@@ -280,9 +414,9 @@ static struct page **bm_realloc_pages(struct drbd_bitmap *b, unsigned long want)
 	}
 
 	if (vmalloced)
-		set_bit(BM_P_VMALLOCED, &b->bm_flags);
+		b->bm_flags |= BM_P_VMALLOCED;
 	else
-		clear_bit(BM_P_VMALLOCED, &b->bm_flags);
+		b->bm_flags &= ~BM_P_VMALLOCED;
 
 	return new_pages;
 }
@@ -319,7 +453,7 @@ void drbd_bm_cleanup(struct drbd_conf *mdev)
 {
 	ERR_IF (!mdev->bitmap) return;
 	bm_free_pages(mdev->bitmap->bm_pages, mdev->bitmap->bm_number_of_pages);
-	bm_vk_free(mdev->bitmap->bm_pages, test_bit(BM_P_VMALLOCED, &mdev->bitmap->bm_flags));
+	bm_vk_free(mdev->bitmap->bm_pages, (BM_P_VMALLOCED & mdev->bitmap->bm_flags));
 	kfree(mdev->bitmap);
 	mdev->bitmap = NULL;
 }
@@ -329,22 +463,39 @@ void drbd_bm_cleanup(struct drbd_conf *mdev)
  * this masks out the remaining bits.
  * Returns the number of bits cleared.
  */
+#define BITS_PER_PAGE		(1UL << (PAGE_SHIFT + 3))
+#define BITS_PER_PAGE_MASK	(BITS_PER_PAGE - 1)
+#define BITS_PER_LONG_MASK	(BITS_PER_LONG - 1)
 static int bm_clear_surplus(struct drbd_bitmap *b)
 {
-	const unsigned long mask = (1UL << (b->bm_bits & (BITS_PER_LONG-1))) - 1;
-	size_t w = b->bm_bits >> LN2_BPL;
-	int cleared = 0;
+	unsigned long mask;
 	unsigned long *p_addr, *bm;
+	int tmp;
+	int cleared = 0;
 
-	p_addr = bm_map_paddr(b, w);
-	bm = p_addr + MLPP(w);
-	if (w < b->bm_words) {
+	/* number of bits modulo bits per page */
+	tmp = (b->bm_bits & BITS_PER_PAGE_MASK);
+	/* mask the used bits of the word containing the last bit */
+	mask = (1UL << (tmp & BITS_PER_LONG_MASK)) -1;
+	/* bitmap is always stored little endian,
+	 * on disk and in core memory alike */
+	mask = cpu_to_lel(mask);
+
+	p_addr = bm_map_pidx(b, b->bm_number_of_pages - 1);
+	bm = p_addr + (tmp/BITS_PER_LONG);
+	if (mask) {
+		/* If mask != 0, we are not exactly aligned, so bm now points
+		 * to the long containing the last bit.
+		 * If mask == 0, bm already points to the word immediately
+		 * after the last (long word aligned) bit. */
 		cleared = hweight_long(*bm & ~mask);
 		*bm &= mask;
-		w++; bm++;
+		bm++;
 	}
 
-	if (w < b->bm_words) {
+	if (BITS_PER_LONG == 32 && ((bm - p_addr) & 1) == 1) {
+		/* on a 32bit arch, we may need to zero out
+		 * a padding long to align with a 64bit remote */
 		cleared += hweight_long(*bm);
 		*bm = 0;
 	}
@@ -354,66 +505,75 @@ static int bm_clear_surplus(struct drbd_bitmap *b)
 
 static void bm_set_surplus(struct drbd_bitmap *b)
 {
-	const unsigned long mask = (1UL << (b->bm_bits & (BITS_PER_LONG-1))) - 1;
-	size_t w = b->bm_bits >> LN2_BPL;
+	unsigned long mask;
 	unsigned long *p_addr, *bm;
-
-	p_addr = bm_map_paddr(b, w);
-	bm = p_addr + MLPP(w);
-	if (w < b->bm_words) {
+	int tmp;
+
+	/* number of bits modulo bits per page */
+	tmp = (b->bm_bits & BITS_PER_PAGE_MASK);
+	/* mask the used bits of the word containing the last bit */
+	mask = (1UL << (tmp & BITS_PER_LONG_MASK)) -1;
+	/* bitmap is always stored little endian,
+	 * on disk and in core memory alike */
+	mask = cpu_to_lel(mask);
+
+	p_addr = bm_map_pidx(b, b->bm_number_of_pages - 1);
+	bm = p_addr + (tmp/BITS_PER_LONG);
+	if (mask) {
+		/* If mask != 0, we are not exactly aligned, so bm now points
+		 * to the long containing the last bit.
+		 * If mask == 0, bm already points to the word immediately
+		 * after the last (long word aligned) bit. */
 		*bm |= ~mask;
-		bm++; w++;
+		bm++;
 	}
 
-	if (w < b->bm_words) {
-		*bm = ~(0UL);
+	if (BITS_PER_LONG == 32 && ((bm - p_addr) & 1) == 1) {
+		/* on a 32bit arch, we may need to zero out
+		 * a padding long to align with a 64bit remote */
+		*bm = ~0UL;
 	}
 	bm_unmap(p_addr);
 }
 
-static unsigned long __bm_count_bits(struct drbd_bitmap *b, const int swap_endian)
+/* you better not modify the bitmap while this is running,
+ * or its results will be stale */
+static unsigned long bm_count_bits(struct drbd_bitmap *b)
 {
-	unsigned long *p_addr, *bm, offset = 0;
+	unsigned long *p_addr;
 	unsigned long bits = 0;
-	unsigned long i, do_now;
-
-	while (offset < b->bm_words) {
-		i = do_now = min_t(size_t, b->bm_words-offset, LWPP);
-		p_addr = __bm_map_paddr(b, offset, KM_USER0);
-		bm = p_addr + MLPP(offset);
-		while (i--) {
-#ifndef __LITTLE_ENDIAN
-			if (swap_endian)
-				*bm = lel_to_cpu(*bm);
-#endif
-			bits += hweight_long(*bm++);
-		}
+	unsigned long mask = (1UL << (b->bm_bits & BITS_PER_LONG_MASK)) -1;
+	int idx, i, last_word;
+
+	/* all but last page */
+	for (idx = 0; idx < b->bm_number_of_pages - 1; idx++) {
+		p_addr = __bm_map_pidx(b, idx, KM_USER0);
+		for (i = 0; i < LWPP; i++)
+			bits += hweight_long(p_addr[i]);
 		__bm_unmap(p_addr, KM_USER0);
-		offset += do_now;
 		cond_resched();
 	}
-
+	/* last (or only) page */
+	last_word = ((b->bm_bits - 1) & BITS_PER_PAGE_MASK) >> LN2_BPL;
+	p_addr = __bm_map_pidx(b, idx, KM_USER0);
+	for (i = 0; i < last_word; i++)
+		bits += hweight_long(p_addr[i]);
+	p_addr[last_word] &= cpu_to_lel(mask);
+	bits += hweight_long(p_addr[last_word]);
+	/* 32bit arch, may have an unused padding long */
+	if (BITS_PER_LONG == 32 && (last_word & 1) == 0)
+		p_addr[last_word+1] = 0;
+	__bm_unmap(p_addr, KM_USER0);
 	return bits;
 }
 
-static unsigned long bm_count_bits(struct drbd_bitmap *b)
-{
-	return __bm_count_bits(b, 0);
-}
-
-static unsigned long bm_count_bits_swap_endian(struct drbd_bitmap *b)
-{
-	return __bm_count_bits(b, 1);
-}
-
 /* offset and len in long words.*/
 static void bm_memset(struct drbd_bitmap *b, size_t offset, int c, size_t len)
 {
 	unsigned long *p_addr, *bm;
+	unsigned int idx;
 	size_t do_now, end;
 
-#define BM_SECTORS_PER_BIT (BM_BLOCK_SIZE/512)
-
 	end = offset + len;
 
 	if (end > b->bm_words) {
@@ -423,15 +583,16 @@ static void bm_memset(struct drbd_bitmap *b, size_t offset, int c, size_t len)
 
 	while (offset < end) {
 		do_now = min_t(size_t, ALIGN(offset + 1, LWPP), end) - offset;
-		p_addr = bm_map_paddr(b, offset);
+		idx = bm_word_to_page_idx(b, offset);
+		p_addr = bm_map_pidx(b, idx);
 		bm = p_addr + MLPP(offset);
 		if (bm+do_now > p_addr + LWPP) {
 			printk(KERN_ALERT "drbd: BUG BUG BUG! p_addr:%p bm:%p do_now:%d\n",
 			       p_addr, bm, (int)do_now);
-			break; /* breaks to after catch_oob_access_end() only! */
-		}
-		memset(bm, c, do_now * sizeof(long));
+		} else
+			memset(bm, c, do_now * sizeof(long));
 		bm_unmap(p_addr);
+		bm_set_page_need_writeout(b->bm_pages[idx]);
 		offset += do_now;
 	}
 }
@@ -447,7 +608,7 @@ static void bm_memset(struct drbd_bitmap *b, size_t offset, int c, size_t len)
 int drbd_bm_resize(struct drbd_conf *mdev, sector_t capacity, int set_new_bits)
 {
 	struct drbd_bitmap *b = mdev->bitmap;
-	unsigned long bits, words, owords, obits, *p_addr, *bm;
+	unsigned long bits, words, owords, obits;
 	unsigned long want, have, onpages; /* number of pages */
 	struct page **npages, **opages = NULL;
 	int err = 0, growing;
@@ -455,7 +616,7 @@ int drbd_bm_resize(struct drbd_conf *mdev, sector_t capacity, int set_new_bits)
 
 	ERR_IF(!b) return -ENOMEM;
 
-	drbd_bm_lock(mdev, "resize");
+	drbd_bm_lock(mdev, "resize", BM_LOCKED_MASK);
 
 	dev_info(DEV, "drbd_bm_resize called with capacity == %llu\n",
 			(unsigned long long)capacity);
@@ -463,7 +624,7 @@ int drbd_bm_resize(struct drbd_conf *mdev, sector_t capacity, int set_new_bits)
 	if (capacity == b->bm_dev_capacity)
 		goto out;
 
-	opages_vmalloced = test_bit(BM_P_VMALLOCED, &b->bm_flags);
+	opages_vmalloced = (BM_P_VMALLOCED & b->bm_flags);
 
 	if (capacity == 0) {
 		spin_lock_irq(&b->bm_lock);
@@ -491,18 +652,23 @@ int drbd_bm_resize(struct drbd_conf *mdev, sector_t capacity, int set_new_bits)
 	words = ALIGN(bits, 64) >> LN2_BPL;
 
 	if (get_ldev(mdev)) {
-		D_ASSERT((u64)bits <= (((u64)mdev->ldev->md.md_size_sect-MD_BM_OFFSET) << 12));
+		u64 bits_on_disk = ((u64)mdev->ldev->md.md_size_sect-MD_BM_OFFSET) << 12;
 		put_ldev(mdev);
+		if (bits > bits_on_disk) {
+			dev_info(DEV, "bits = %lu\n", bits);
+			dev_info(DEV, "bits_on_disk = %llu\n", bits_on_disk);
+			err = -ENOSPC;
+			goto out;
+		}
 	}
 
-	/* one extra long to catch off by one errors */
-	want = ALIGN((words+1)*sizeof(long), PAGE_SIZE) >> PAGE_SHIFT;
+	want = ALIGN(words*sizeof(long), PAGE_SIZE) >> PAGE_SHIFT;
 	have = b->bm_number_of_pages;
 	if (want == have) {
 		D_ASSERT(b->bm_pages != NULL);
 		npages = b->bm_pages;
 	} else {
-		if (FAULT_ACTIVE(mdev, DRBD_FAULT_BM_ALLOC))
+		if (drbd_insert_fault(mdev, DRBD_FAULT_BM_ALLOC))
 			npages = NULL;
 		else
 			npages = bm_realloc_pages(b, want);
@@ -542,11 +708,6 @@ int drbd_bm_resize(struct drbd_conf *mdev, sector_t capacity, int set_new_bits)
 		bm_free_pages(opages + want, have - want);
 	}
 
-	p_addr = bm_map_paddr(b, words);
-	bm = p_addr + MLPP(words);
-	*bm = DRBD_MAGIC;
-	bm_unmap(p_addr);
-
 	(void)bm_clear_surplus(b);
 
 	spin_unlock_irq(&b->bm_lock);
@@ -554,7 +715,7 @@ int drbd_bm_resize(struct drbd_conf *mdev, sector_t capacity, int set_new_bits)
 		bm_vk_free(opages, opages_vmalloced);
 	if (!growing)
 		b->bm_set = bm_count_bits(b);
-	dev_info(DEV, "resync bitmap: bits=%lu words=%lu\n", bits, words);
+	dev_info(DEV, "resync bitmap: bits=%lu words=%lu pages=%lu\n", bits, words, want);
 
  out:
 	drbd_bm_unlock(mdev);
@@ -624,6 +785,7 @@ void drbd_bm_merge_lel(struct drbd_conf *mdev, size_t offset, size_t number,
 	struct drbd_bitmap *b = mdev->bitmap;
 	unsigned long *p_addr, *bm;
 	unsigned long word, bits;
+	unsigned int idx;
 	size_t end, do_now;
 
 	end = offset + number;
@@ -638,16 +800,18 @@ void drbd_bm_merge_lel(struct drbd_conf *mdev, size_t offset, size_t number,
 	spin_lock_irq(&b->bm_lock);
 	while (offset < end) {
 		do_now = min_t(size_t, ALIGN(offset+1, LWPP), end) - offset;
-		p_addr = bm_map_paddr(b, offset);
+		idx = bm_word_to_page_idx(b, offset);
+		p_addr = bm_map_pidx(b, idx);
 		bm = p_addr + MLPP(offset);
 		offset += do_now;
 		while (do_now--) {
 			bits = hweight_long(*bm);
-			word = *bm | lel_to_cpu(*buffer++);
+			word = *bm | *buffer++;
 			*bm++ = word;
 			b->bm_set += hweight_long(word) - bits;
 		}
 		bm_unmap(p_addr);
+		bm_set_page_need_writeout(b->bm_pages[idx]);
 	}
 	/* with 32bit <-> 64bit cross-platform connect
 	 * this is only correct for current usage,
@@ -656,7 +820,6 @@ void drbd_bm_merge_lel(struct drbd_conf *mdev, size_t offset, size_t number,
 	 */
 	if (end == b->bm_words)
 		b->bm_set -= bm_clear_surplus(b);
-
 	spin_unlock_irq(&b->bm_lock);
 }
 
@@ -686,11 +849,11 @@ void drbd_bm_get_lel(struct drbd_conf *mdev, size_t offset, size_t number,
 	else {
 		while (offset < end) {
 			do_now = min_t(size_t, ALIGN(offset+1, LWPP), end) - offset;
-			p_addr = bm_map_paddr(b, offset);
+			p_addr = bm_map_pidx(b, bm_word_to_page_idx(b, offset));
 			bm = p_addr + MLPP(offset);
 			offset += do_now;
 			while (do_now--)
-				*buffer++ = cpu_to_lel(*bm++);
+				*buffer++ = *bm++;
 			bm_unmap(p_addr);
 		}
 	}
@@ -724,9 +887,22 @@ void drbd_bm_clear_all(struct drbd_conf *mdev)
 	spin_unlock_irq(&b->bm_lock);
 }
 
+struct bm_aio_ctx {
+	struct drbd_conf *mdev;
+	atomic_t in_flight;
+	struct completion done;
+	unsigned flags;
+#define BM_AIO_COPY_PAGES	1
+	int error;
+};
+
+/* bv_page may be a copy, or may be the original */
 static void bm_async_io_complete(struct bio *bio, int error)
 {
-	struct drbd_bitmap *b = bio->bi_private;
+	struct bm_aio_ctx *ctx = bio->bi_private;
+	struct drbd_conf *mdev = ctx->mdev;
+	struct drbd_bitmap *b = mdev->bitmap;
+	unsigned int idx = bm_page_to_idx(bio->bi_io_vec[0].bv_page);
 	int uptodate = bio_flagged(bio, BIO_UPTODATE);
 
 
@@ -737,38 +913,83 @@ static void bm_async_io_complete(struct bio *bio, int error)
 	if (!error && !uptodate)
 		error = -EIO;
 
+	if ((ctx->flags & BM_AIO_COPY_PAGES) == 0 &&
+	    !bm_test_page_unchanged(b->bm_pages[idx]))
+		dev_warn(DEV, "bitmap page idx %u changed during IO!\n", idx);
+
 	if (error) {
-		/* doh. what now?
-		 * for now, set all bits, and flag MD_IO_ERROR */
-		__set_bit(BM_MD_IO_ERROR, &b->bm_flags);
+		/* ctx error will hold the completed-last non-zero error code,
+		 * in case error codes differ. */
+		ctx->error = error;
+		bm_set_page_io_err(b->bm_pages[idx]);
+		/* Not identical to on disk version of it.
+		 * Is BM_PAGE_IO_ERROR enough? */
+		if (__ratelimit(&drbd_ratelimit_state))
+			dev_err(DEV, "IO ERROR %d on bitmap page idx %u\n",
+					error, idx);
+	} else {
+		bm_clear_page_io_err(b->bm_pages[idx]);
+		dynamic_dev_dbg(DEV, "bitmap page idx %u completed\n", idx);
 	}
-	if (atomic_dec_and_test(&b->bm_async_io))
-		wake_up(&b->bm_io_wait);
+
+	bm_page_unlock_io(mdev, idx);
+
+	/* FIXME give back to page pool */
+	if (ctx->flags & BM_AIO_COPY_PAGES)
+		put_page(bio->bi_io_vec[0].bv_page);
 
 	bio_put(bio);
+
+	if (atomic_dec_and_test(&ctx->in_flight))
+		complete(&ctx->done);
 }
 
-static void bm_page_io_async(struct drbd_conf *mdev, struct drbd_bitmap *b, int page_nr, int rw) __must_hold(local)
+static void bm_page_io_async(struct bm_aio_ctx *ctx, int page_nr, int rw) __must_hold(local)
 {
 	/* we are process context. we always get a bio */
 	struct bio *bio = bio_alloc(GFP_KERNEL, 1);
+	struct drbd_conf *mdev = ctx->mdev;
+	struct drbd_bitmap *b = mdev->bitmap;
+	struct page *page;
 	unsigned int len;
+
 	sector_t on_disk_sector =
 		mdev->ldev->md.md_offset + mdev->ldev->md.bm_offset;
 	on_disk_sector += ((sector_t)page_nr) << (PAGE_SHIFT-9);
 
 	/* this might happen with very small
-	 * flexible external meta data device */
+	 * flexible external meta data device,
+	 * or with PAGE_SIZE > 4k */
 	len = min_t(unsigned int, PAGE_SIZE,
 		(drbd_md_last_sector(mdev->ldev) - on_disk_sector + 1)<<9);
 
+	/* serialize IO on this page */
+	bm_page_lock_io(mdev, page_nr);
+	/* before memcpy and submit,
+	 * so it can be redirtied any time */
+	bm_set_page_unchanged(b->bm_pages[page_nr]);
+
+	if (ctx->flags & BM_AIO_COPY_PAGES) {
+		/* FIXME alloc_page is good enough for now, but actually needs
+		 * to use pre-allocated page pool */
+		void *src, *dest;
+		page = alloc_page(__GFP_HIGHMEM|__GFP_WAIT);
+		dest = kmap_atomic(page, KM_USER0);
+		src = kmap_atomic(b->bm_pages[page_nr], KM_USER1);
+		memcpy(dest, src, PAGE_SIZE);
+		kunmap_atomic(src, KM_USER1);
+		kunmap_atomic(dest, KM_USER0);
+		bm_store_page_idx(page, page_nr);
+	} else
+		page = b->bm_pages[page_nr];
+
 	bio->bi_bdev = mdev->ldev->md_bdev;
 	bio->bi_sector = on_disk_sector;
-	bio_add_page(bio, b->bm_pages[page_nr], len, 0);
-	bio->bi_private = b;
+	bio_add_page(bio, page, len, 0);
+	bio->bi_private = ctx;
 	bio->bi_end_io = bm_async_io_complete;
 
-	if (FAULT_ACTIVE(mdev, (rw & WRITE) ? DRBD_FAULT_MD_WR : DRBD_FAULT_MD_RD)) {
+	if (drbd_insert_fault(mdev, (rw & WRITE) ? DRBD_FAULT_MD_WR : DRBD_FAULT_MD_RD)) {
 		bio->bi_rw |= rw;
 		bio_endio(bio, -EIO);
 	} else {
@@ -776,87 +997,84 @@ static void bm_page_io_async(struct drbd_conf *mdev, struct drbd_bitmap *b, int
 	}
 }
 
-# if defined(__LITTLE_ENDIAN)
-	/* nothing to do, on disk == in memory */
-# define bm_cpu_to_lel(x) ((void)0)
-# else
-static void bm_cpu_to_lel(struct drbd_bitmap *b)
-{
-	/* need to cpu_to_lel all the pages ...
-	 * this may be optimized by using
-	 * cpu_to_lel(-1) == -1 and cpu_to_lel(0) == 0;
-	 * the following is still not optimal, but better than nothing */
-	unsigned int i;
-	unsigned long *p_addr, *bm;
-	if (b->bm_set == 0) {
-		/* no page at all; avoid swap if all is 0 */
-		i = b->bm_number_of_pages;
-	} else if (b->bm_set == b->bm_bits) {
-		/* only the last page */
-		i = b->bm_number_of_pages - 1;
-	} else {
-		/* all pages */
-		i = 0;
-	}
-	for (; i < b->bm_number_of_pages; i++) {
-		p_addr = kmap_atomic(b->bm_pages[i], KM_USER0);
-		for (bm = p_addr; bm < p_addr + PAGE_SIZE/sizeof(long); bm++)
-			*bm = cpu_to_lel(*bm);
-		kunmap_atomic(p_addr, KM_USER0);
-	}
-}
-# endif
-/* lel_to_cpu == cpu_to_lel */
-# define bm_lel_to_cpu(x) bm_cpu_to_lel(x)
-
 /*
  * bm_rw: read/write the whole bitmap from/to its on disk location.
  */
-static int bm_rw(struct drbd_conf *mdev, int rw) __must_hold(local)
+static int bm_rw(struct drbd_conf *mdev, int rw, unsigned lazy_writeout_upper_idx) __must_hold(local)
 {
+	struct bm_aio_ctx ctx = {
+		.mdev = mdev,
+		.in_flight = ATOMIC_INIT(1),
+		.done = COMPLETION_INITIALIZER_ONSTACK(ctx.done),
+		.flags = lazy_writeout_upper_idx ? BM_AIO_COPY_PAGES : 0,
+	};
 	struct drbd_bitmap *b = mdev->bitmap;
-	/* sector_t sector; */
-	int bm_words, num_pages, i;
+	int num_pages, i, count = 0;
 	unsigned long now;
 	char ppb[10];
 	int err = 0;
 
-	WARN_ON(!bm_is_locked(b));
-
-	/* no spinlock here, the drbd_bm_lock should be enough! */
-
-	bm_words  = drbd_bm_words(mdev);
-	num_pages = (bm_words*sizeof(long) + PAGE_SIZE-1) >> PAGE_SHIFT;
+	/*
+	 * We are protected against bitmap disappearing/resizing by holding an
+	 * ldev reference (caller must have called get_ldev()).
+	 * For read/write, we are protected against changes to the bitmap by
+	 * the bitmap lock (see drbd_bitmap_io).
+	 * For lazy writeout, we don't care for ongoing changes to the bitmap,
+	 * as we submit copies of pages anyways.
+	 */
+	if (!ctx.flags)
+		WARN_ON(!(BM_LOCKED_MASK & b->bm_flags));
 
-	/* on disk bitmap is little endian */
-	if (rw == WRITE)
-		bm_cpu_to_lel(b);
+	num_pages = b->bm_number_of_pages;
 
 	now = jiffies;
-	atomic_set(&b->bm_async_io, num_pages);
-	__clear_bit(BM_MD_IO_ERROR, &b->bm_flags);
 
 	/* let the layers below us try to merge these bios... */
-	for (i = 0; i < num_pages; i++)
-		bm_page_io_async(mdev, b, i, rw);
+	for (i = 0; i < num_pages; i++) {
+		/* ignore completely unchanged pages */
+		if (lazy_writeout_upper_idx && i == lazy_writeout_upper_idx)
+			break;
+		if (rw & WRITE) {
+			if (bm_test_page_unchanged(b->bm_pages[i])) {
+				dynamic_dev_dbg(DEV, "skipped bm write for idx %u\n", i);
+				continue;
+			}
+			/* during lazy writeout,
+			 * ignore those pages not marked for lazy writeout. */
+			if (lazy_writeout_upper_idx &&
+			    !bm_test_page_lazy_writeout(b->bm_pages[i])) {
+				dynamic_dev_dbg(DEV, "skipped bm lazy write for idx %u\n", i);
+				continue;
+			}
+		}
+		atomic_inc(&ctx.in_flight);
+		bm_page_io_async(&ctx, i, rw);
+		++count;
+		cond_resched();
+	}
 
-	wait_event(b->bm_io_wait, atomic_read(&b->bm_async_io) == 0);
+	/*
+	 * We initialize ctx.in_flight to one to make sure bm_async_io_complete
+	 * will not complete() early, and decrement / test it here.  If there
+	 * are still some bios in flight, we need to wait for them here.
+	 */
+	if (!atomic_dec_and_test(&ctx.in_flight))
+		wait_for_completion(&ctx.done);
+	dev_info(DEV, "bitmap %s of %u pages took %lu jiffies\n",
+			rw == WRITE ? "WRITE" : "READ",
+			count, jiffies - now);
 
-	if (test_bit(BM_MD_IO_ERROR, &b->bm_flags)) {
+	if (ctx.error) {
 		dev_alert(DEV, "we had at least one MD IO ERROR during bitmap IO\n");
-		drbd_chk_io_error(mdev, 1, TRUE);
-		err = -EIO;
+		drbd_chk_io_error(mdev, 1, true);
+		err = -EIO; /* ctx.error ? */
 	}
 
 	now = jiffies;
 	if (rw == WRITE) {
-		/* swap back endianness */
-		bm_lel_to_cpu(b);
-		/* flush bitmap to stable storage */
 		drbd_md_flush(mdev);
 	} else /* rw == READ */ {
-		/* just read, if necessary adjust endianness */
-		b->bm_set = bm_count_bits_swap_endian(b);
+		b->bm_set = bm_count_bits(b);
 		dev_info(DEV, "recounting of set bits took additional %lu jiffies\n",
 		     jiffies - now);
 	}
@@ -874,112 +1092,128 @@ static int bm_rw(struct drbd_conf *mdev, int rw) __must_hold(local)
  */
 int drbd_bm_read(struct drbd_conf *mdev) __must_hold(local)
 {
-	return bm_rw(mdev, READ);
+	return bm_rw(mdev, READ, 0);
 }
 
 /**
  * drbd_bm_write() - Write the whole bitmap to its on disk location.
  * @mdev:	DRBD device.
+ *
+ * Will only write pages that have changed since last IO.
  */
 int drbd_bm_write(struct drbd_conf *mdev) __must_hold(local)
 {
-	return bm_rw(mdev, WRITE);
+	return bm_rw(mdev, WRITE, 0);
 }
 
 /**
- * drbd_bm_write_sect: Writes a 512 (MD_SECTOR_SIZE) byte piece of the bitmap
+ * drbd_bm_lazy_write_out() - Write bitmap pages 0 to @upper_idx-1, if they have changed.
  * @mdev:	DRBD device.
- * @enr:	Extent number in the resync lru (happens to be sector offset)
- *
- * The BM_EXT_SIZE is on purpose exactly the amount of the bitmap covered
- * by a single sector write. Therefore enr == sector offset from the
- * start of the bitmap.
+ * @upper_idx:	0: write all changed pages; +ve: page index to stop scanning for changed pages
  */
-int drbd_bm_write_sect(struct drbd_conf *mdev, unsigned long enr) __must_hold(local)
+int drbd_bm_write_lazy(struct drbd_conf *mdev, unsigned upper_idx) __must_hold(local)
 {
-	sector_t on_disk_sector = enr + mdev->ldev->md.md_offset
-				      + mdev->ldev->md.bm_offset;
-	int bm_words, num_words, offset;
-	int err = 0;
+	return bm_rw(mdev, WRITE, upper_idx);
+}
+
 
-	mutex_lock(&mdev->md_io_mutex);
-	bm_words  = drbd_bm_words(mdev);
-	offset    = S2W(enr);	/* word offset into bitmap */
-	num_words = min(S2W(1), bm_words - offset);
-	if (num_words < S2W(1))
-		memset(page_address(mdev->md_io_page), 0, MD_SECTOR_SIZE);
-	drbd_bm_get_lel(mdev, offset, num_words,
-			page_address(mdev->md_io_page));
-	if (!drbd_md_sync_page_io(mdev, mdev->ldev, on_disk_sector, WRITE)) {
-		int i;
-		err = -EIO;
-		dev_err(DEV, "IO ERROR writing bitmap sector %lu "
-		    "(meta-disk sector %llus)\n",
-		    enr, (unsigned long long)on_disk_sector);
-		drbd_chk_io_error(mdev, 1, TRUE);
-		for (i = 0; i < AL_EXT_PER_BM_SECT; i++)
-			drbd_bm_ALe_set_all(mdev, enr*AL_EXT_PER_BM_SECT+i);
+/**
+ * drbd_bm_write_page: Writes a PAGE_SIZE aligned piece of bitmap
+ * @mdev:	DRBD device.
+ * @idx:	bitmap page index
+ *
+ * We don't want to special case on logical_block_size of the backend device,
+ * so we submit PAGE_SIZE aligned pieces.
+ * Note that on "most" systems, PAGE_SIZE is 4k.
+ *
+ * In case this becomes an issue on systems with larger PAGE_SIZE,
+ * we may want to change this again to write 4k aligned 4k pieces.
+ */
+int drbd_bm_write_page(struct drbd_conf *mdev, unsigned int idx) __must_hold(local)
+{
+	struct bm_aio_ctx ctx = {
+		.mdev = mdev,
+		.in_flight = ATOMIC_INIT(1),
+		.done = COMPLETION_INITIALIZER_ONSTACK(ctx.done),
+		.flags = BM_AIO_COPY_PAGES,
+	};
+
+	if (bm_test_page_unchanged(mdev->bitmap->bm_pages[idx])) {
+		dynamic_dev_dbg(DEV, "skipped bm page write for idx %u\n", idx);
+		return 0;
 	}
+
+	bm_page_io_async(&ctx, idx, WRITE_SYNC);
+	wait_for_completion(&ctx.done);
+
+	if (ctx.error)
+		drbd_chk_io_error(mdev, 1, true);
+		/* that should force detach, so the in memory bitmap will be
+		 * gone in a moment as well. */
+
 	mdev->bm_writ_cnt++;
-	mutex_unlock(&mdev->md_io_mutex);
-	return err;
+	return ctx.error;
 }
 
 /* NOTE
  * find_first_bit returns int, we return unsigned long.
- * should not make much difference anyways, but ...
+ * For this to work on 32bit arch with bitnumbers > (1<<32),
+ * we'd need to return u64, and get a whole lot of other places
+ * fixed where we still use unsigned long.
  *
  * this returns a bit number, NOT a sector!
  */
-#define BPP_MASK ((1UL << (PAGE_SHIFT+3)) - 1)
 static unsigned long __bm_find_next(struct drbd_conf *mdev, unsigned long bm_fo,
 	const int find_zero_bit, const enum km_type km)
 {
 	struct drbd_bitmap *b = mdev->bitmap;
-	unsigned long i = -1UL;
 	unsigned long *p_addr;
-	unsigned long bit_offset; /* bit offset of the mapped page. */
+	unsigned long bit_offset;
+	unsigned i;
+
 
 	if (bm_fo > b->bm_bits) {
 		dev_err(DEV, "bm_fo=%lu bm_bits=%lu\n", bm_fo, b->bm_bits);
+		bm_fo = DRBD_END_OF_BITMAP;
 	} else {
 		while (bm_fo < b->bm_bits) {
-			unsigned long offset;
-			bit_offset = bm_fo & ~BPP_MASK; /* bit offset of the page */
-			offset = bit_offset >> LN2_BPL;    /* word offset of the page */
-			p_addr = __bm_map_paddr(b, offset, km);
+			/* bit offset of the first bit in the page */
+			bit_offset = bm_fo & ~BITS_PER_PAGE_MASK;
+			p_addr = __bm_map_pidx(b, bm_bit_to_page_idx(b, bm_fo), km);
 
 			if (find_zero_bit)
-				i = find_next_zero_bit(p_addr, PAGE_SIZE*8, bm_fo & BPP_MASK);
+				i = find_next_zero_bit_le(p_addr,
+						PAGE_SIZE*8, bm_fo & BITS_PER_PAGE_MASK);
 			else
-				i = find_next_bit(p_addr, PAGE_SIZE*8, bm_fo & BPP_MASK);
+				i = find_next_bit_le(p_addr,
+						PAGE_SIZE*8, bm_fo & BITS_PER_PAGE_MASK);
 
 			__bm_unmap(p_addr, km);
 			if (i < PAGE_SIZE*8) {
-				i = bit_offset + i;
-				if (i >= b->bm_bits)
+				bm_fo = bit_offset + i;
+				if (bm_fo >= b->bm_bits)
 					break;
 				goto found;
 			}
 			bm_fo = bit_offset + PAGE_SIZE*8;
 		}
-		i = -1UL;
+		bm_fo = DRBD_END_OF_BITMAP;
 	}
  found:
-	return i;
+	return bm_fo;
 }
 
 static unsigned long bm_find_next(struct drbd_conf *mdev,
 	unsigned long bm_fo, const int find_zero_bit)
 {
 	struct drbd_bitmap *b = mdev->bitmap;
-	unsigned long i = -1UL;
+	unsigned long i = DRBD_END_OF_BITMAP;
 
 	ERR_IF(!b) return i;
 	ERR_IF(!b->bm_pages) return i;
 
 	spin_lock_irq(&b->bm_lock);
-	if (bm_is_locked(b))
+	if (BM_DONT_TEST & b->bm_flags)
 		bm_print_lock_info(mdev);
 
 	i = __bm_find_next(mdev, bm_fo, find_zero_bit, KM_IRQ1);
@@ -1005,13 +1239,13 @@ unsigned long drbd_bm_find_next_zero(struct drbd_conf *mdev, unsigned long bm_fo
  * you must take drbd_bm_lock() first */
 unsigned long _drbd_bm_find_next(struct drbd_conf *mdev, unsigned long bm_fo)
 {
-	/* WARN_ON(!bm_is_locked(mdev)); */
+	/* WARN_ON(!(BM_DONT_SET & mdev->b->bm_flags)); */
 	return __bm_find_next(mdev, bm_fo, 0, KM_USER1);
 }
 
 unsigned long _drbd_bm_find_next_zero(struct drbd_conf *mdev, unsigned long bm_fo)
 {
-	/* WARN_ON(!bm_is_locked(mdev)); */
+	/* WARN_ON(!(BM_DONT_SET & mdev->b->bm_flags)); */
 	return __bm_find_next(mdev, bm_fo, 1, KM_USER1);
 }
 
@@ -1027,8 +1261,9 @@ static int __bm_change_bits_to(struct drbd_conf *mdev, const unsigned long s,
 	struct drbd_bitmap *b = mdev->bitmap;
 	unsigned long *p_addr = NULL;
 	unsigned long bitnr;
-	unsigned long last_page_nr = -1UL;
+	unsigned int last_page_nr = -1U;
 	int c = 0;
+	int changed_total = 0;
 
 	if (e >= b->bm_bits) {
 		dev_err(DEV, "ASSERT FAILED: bit_s=%lu bit_e=%lu bm_bits=%lu\n",
@@ -1036,23 +1271,33 @@ static int __bm_change_bits_to(struct drbd_conf *mdev, const unsigned long s,
 		e = b->bm_bits ? b->bm_bits -1 : 0;
 	}
 	for (bitnr = s; bitnr <= e; bitnr++) {
-		unsigned long offset = bitnr>>LN2_BPL;
-		unsigned long page_nr = offset >> (PAGE_SHIFT - LN2_BPL + 3);
+		unsigned int page_nr = bm_bit_to_page_idx(b, bitnr);
 		if (page_nr != last_page_nr) {
 			if (p_addr)
 				__bm_unmap(p_addr, km);
-			p_addr = __bm_map_paddr(b, offset, km);
+			if (c < 0)
+				bm_set_page_lazy_writeout(b->bm_pages[last_page_nr]);
+			else if (c > 0)
+				bm_set_page_need_writeout(b->bm_pages[last_page_nr]);
+			changed_total += c;
+			c = 0;
+			p_addr = __bm_map_pidx(b, page_nr, km);
 			last_page_nr = page_nr;
 		}
 		if (val)
-			c += (0 == __test_and_set_bit(bitnr & BPP_MASK, p_addr));
+			c += (0 == __test_and_set_bit_le(bitnr & BITS_PER_PAGE_MASK, p_addr));
 		else
-			c -= (0 != __test_and_clear_bit(bitnr & BPP_MASK, p_addr));
+			c -= (0 != __test_and_clear_bit_le(bitnr & BITS_PER_PAGE_MASK, p_addr));
 	}
 	if (p_addr)
 		__bm_unmap(p_addr, km);
-	b->bm_set += c;
-	return c;
+	if (c < 0)
+		bm_set_page_lazy_writeout(b->bm_pages[last_page_nr]);
+	else if (c > 0)
+		bm_set_page_need_writeout(b->bm_pages[last_page_nr]);
+	changed_total += c;
+	b->bm_set += changed_total;
+	return changed_total;
 }
 
 /* returns number of bits actually changed.
@@ -1070,7 +1315,7 @@ static int bm_change_bits_to(struct drbd_conf *mdev, const unsigned long s,
 	ERR_IF(!b->bm_pages) return 0;
 
 	spin_lock_irqsave(&b->bm_lock, flags);
-	if (bm_is_locked(b))
+	if ((val ? BM_DONT_SET : BM_DONT_CLEAR) & b->bm_flags)
 		bm_print_lock_info(mdev);
 
 	c = __bm_change_bits_to(mdev, s, e, val, KM_IRQ1);
@@ -1187,12 +1432,11 @@ int drbd_bm_test_bit(struct drbd_conf *mdev, const unsigned long bitnr)
 	ERR_IF(!b->bm_pages) return 0;
 
 	spin_lock_irqsave(&b->bm_lock, flags);
-	if (bm_is_locked(b))
+	if (BM_DONT_TEST & b->bm_flags)
 		bm_print_lock_info(mdev);
 	if (bitnr < b->bm_bits) {
-		unsigned long offset = bitnr>>LN2_BPL;
-		p_addr = bm_map_paddr(b, offset);
-		i = test_bit(bitnr & BPP_MASK, p_addr) ? 1 : 0;
+		p_addr = bm_map_pidx(b, bm_bit_to_page_idx(b, bitnr));
+		i = test_bit_le(bitnr & BITS_PER_PAGE_MASK, p_addr) ? 1 : 0;
 		bm_unmap(p_addr);
 	} else if (bitnr == b->bm_bits) {
 		i = -1;
@@ -1210,10 +1454,10 @@ int drbd_bm_count_bits(struct drbd_conf *mdev, const unsigned long s, const unsi
 {
 	unsigned long flags;
 	struct drbd_bitmap *b = mdev->bitmap;
-	unsigned long *p_addr = NULL, page_nr = -1;
+	unsigned long *p_addr = NULL;
 	unsigned long bitnr;
+	unsigned int page_nr = -1U;
 	int c = 0;
-	size_t w;
 
 	/* If this is called without a bitmap, that is a bug.  But just to be
 	 * robust in case we screwed up elsewhere, in that case pretend there
@@ -1223,20 +1467,20 @@ int drbd_bm_count_bits(struct drbd_conf *mdev, const unsigned long s, const unsi
 	ERR_IF(!b->bm_pages) return 1;
 
 	spin_lock_irqsave(&b->bm_lock, flags);
-	if (bm_is_locked(b))
+	if (BM_DONT_TEST & b->bm_flags)
 		bm_print_lock_info(mdev);
 	for (bitnr = s; bitnr <= e; bitnr++) {
-		w = bitnr >> LN2_BPL;
-		if (page_nr != w >> (PAGE_SHIFT - LN2_BPL + 3)) {
-			page_nr = w >> (PAGE_SHIFT - LN2_BPL + 3);
+		unsigned int idx = bm_bit_to_page_idx(b, bitnr);
+		if (page_nr != idx) {
+			page_nr = idx;
 			if (p_addr)
 				bm_unmap(p_addr);
-			p_addr = bm_map_paddr(b, w);
+			p_addr = bm_map_pidx(b, idx);
 		}
 		ERR_IF (bitnr >= b->bm_bits) {
 			dev_err(DEV, "bitnr=%lu bm_bits=%lu\n", bitnr, b->bm_bits);
 		} else {
-			c += (0 != test_bit(bitnr - (page_nr << (PAGE_SHIFT+3)), p_addr));
+			c += (0 != test_bit_le(bitnr - (page_nr << (PAGE_SHIFT+3)), p_addr));
 		}
 	}
 	if (p_addr)
@@ -1271,7 +1515,7 @@ int drbd_bm_e_weight(struct drbd_conf *mdev, unsigned long enr)
 	ERR_IF(!b->bm_pages) return 0;
 
 	spin_lock_irqsave(&b->bm_lock, flags);
-	if (bm_is_locked(b))
+	if (BM_DONT_TEST & b->bm_flags)
 		bm_print_lock_info(mdev);
 
 	s = S2W(enr);
@@ -1279,7 +1523,7 @@ int drbd_bm_e_weight(struct drbd_conf *mdev, unsigned long enr)
 	count = 0;
 	if (s < b->bm_words) {
 		int n = e-s;
-		p_addr = bm_map_paddr(b, s);
+		p_addr = bm_map_pidx(b, bm_word_to_page_idx(b, s));
 		bm = p_addr + MLPP(s);
 		while (n--)
 			count += hweight_long(*bm++);
@@ -1291,18 +1535,20 @@ int drbd_bm_e_weight(struct drbd_conf *mdev, unsigned long enr)
 	return count;
 }
 
-/* set all bits covered by the AL-extent al_enr */
+/* Set all bits covered by the AL-extent al_enr.
+ * Returns number of bits changed. */
 unsigned long drbd_bm_ALe_set_all(struct drbd_conf *mdev, unsigned long al_enr)
 {
 	struct drbd_bitmap *b = mdev->bitmap;
 	unsigned long *p_addr, *bm;
 	unsigned long weight;
-	int count, s, e, i, do_now;
+	unsigned long s, e;
+	int count, i, do_now;
 	ERR_IF(!b) return 0;
 	ERR_IF(!b->bm_pages) return 0;
 
 	spin_lock_irq(&b->bm_lock);
-	if (bm_is_locked(b))
+	if (BM_DONT_SET & b->bm_flags)
 		bm_print_lock_info(mdev);
 	weight = b->bm_set;
 
@@ -1314,7 +1560,7 @@ unsigned long drbd_bm_ALe_set_all(struct drbd_conf *mdev, unsigned long al_enr)
 	count = 0;
 	if (s < b->bm_words) {
 		i = do_now = e-s;
-		p_addr = bm_map_paddr(b, s);
+		p_addr = bm_map_pidx(b, bm_word_to_page_idx(b, s));
 		bm = p_addr + MLPP(s);
 		while (i--) {
 			count += hweight_long(*bm);
@@ -1326,7 +1572,7 @@ unsigned long drbd_bm_ALe_set_all(struct drbd_conf *mdev, unsigned long al_enr)
 		if (e == b->bm_words)
 			b->bm_set -= bm_clear_surplus(b);
 	} else {
-		dev_err(DEV, "start offset (%d) too large in drbd_bm_ALe_set_all\n", s);
+		dev_err(DEV, "start offset (%lu) too large in drbd_bm_ALe_set_all\n", s);
 	}
 	weight = b->bm_set - weight;
 	spin_unlock_irq(&b->bm_lock);
diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h
index b0bd27dfc1e8..b2699bb2e530 100644
--- a/drivers/block/drbd/drbd_int.h
+++ b/drivers/block/drbd/drbd_int.h
@@ -72,13 +72,6 @@ extern int fault_devs;
 extern char usermode_helper[];
 
 
-#ifndef TRUE
-#define TRUE 1
-#endif
-#ifndef FALSE
-#define FALSE 0
-#endif
-
 /* I don't remember why XCPU ...
  * This is used to wake the asender,
  * and to interrupt sending the sending task
@@ -104,6 +97,7 @@ extern char usermode_helper[];
 #define ID_SYNCER (-1ULL)
 #define ID_VACANT 0
 #define is_syncer_block_id(id) ((id) == ID_SYNCER)
+#define UUID_NEW_BM_OFFSET ((u64)0x0001000000000000ULL)
 
 struct drbd_conf;
 
@@ -137,20 +131,19 @@ enum {
 	DRBD_FAULT_MAX,
 };
 
-#ifdef CONFIG_DRBD_FAULT_INJECTION
 extern unsigned int
 _drbd_insert_fault(struct drbd_conf *mdev, unsigned int type);
+
 static inline int
 drbd_insert_fault(struct drbd_conf *mdev, unsigned int type) {
+#ifdef CONFIG_DRBD_FAULT_INJECTION
 	return fault_rate &&
 		(enable_faults & (1<<type)) &&
 		_drbd_insert_fault(mdev, type);
-}
-#define FAULT_ACTIVE(_m, _t) (drbd_insert_fault((_m), (_t)))
-
 #else
-#define FAULT_ACTIVE(_m, _t) (0)
+	return 0;
 #endif
+}
 
 /* integer division, round _UP_ to the next integer */
 #define div_ceil(A, B) ((A)/(B) + ((A)%(B) ? 1 : 0))
@@ -212,8 +205,10 @@ enum drbd_packets {
 	/* P_CKPT_FENCE_REQ      = 0x25, * currently reserved for protocol D */
 	/* P_CKPT_DISABLE_REQ    = 0x26, * currently reserved for protocol D */
 	P_DELAY_PROBE         = 0x27, /* is used on BOTH sockets */
+	P_OUT_OF_SYNC         = 0x28, /* Mark as out of sync (Outrunning), data socket */
+	P_RS_CANCEL           = 0x29, /* meta: Used to cancel RS_DATA_REQUEST packet by SyncSource */
 
-	P_MAX_CMD	      = 0x28,
+	P_MAX_CMD	      = 0x2A,
 	P_MAY_IGNORE	      = 0x100, /* Flag to test if (cmd > P_MAY_IGNORE) ... */
 	P_MAX_OPT_CMD	      = 0x101,
 
@@ -269,6 +264,7 @@ static inline const char *cmdname(enum drbd_packets cmd)
 		[P_RS_IS_IN_SYNC]	= "CsumRSIsInSync",
 		[P_COMPRESSED_BITMAP]   = "CBitmap",
 		[P_DELAY_PROBE]         = "DelayProbe",
+		[P_OUT_OF_SYNC]		= "OutOfSync",
 		[P_MAX_CMD]	        = NULL,
 	};
 
@@ -512,7 +508,7 @@ struct p_sizes {
 	u64	    d_size;  /* size of disk */
 	u64	    u_size;  /* user requested size */
 	u64	    c_size;  /* current exported size */
-	u32	    max_segment_size;  /* Maximal size of a BIO */
+	u32	    max_bio_size;  /* Maximal size of a BIO */
 	u16	    queue_order_type;  /* not yet implemented in DRBD*/
 	u16	    dds_flags; /* use enum dds_flags here. */
 } __packed;
@@ -550,6 +546,13 @@ struct p_discard {
 	u32	    pad;
 } __packed;
 
+struct p_block_desc {
+	struct p_header80 head;
+	u64 sector;
+	u32 blksize;
+	u32 pad;	/* to multiple of 8 Byte */
+} __packed;
+
 /* Valid values for the encoding field.
  * Bump proto version when changing this. */
 enum drbd_bitmap_code {
@@ -619,7 +622,7 @@ DCBP_set_pad_bits(struct p_compressed_bm *p, int n)
 /* one bitmap packet, including the p_header,
  * should fit within one _architecture independend_ page.
  * so we need to use the fixed size 4KiB page size
- * most architechtures have used for a long time.
+ * most architectures have used for a long time.
  */
 #define BM_PACKET_PAYLOAD_BYTES (4096 - sizeof(struct p_header80))
 #define BM_PACKET_WORDS (BM_PACKET_PAYLOAD_BYTES/sizeof(long))
@@ -647,6 +650,7 @@ union p_polymorph {
         struct p_block_req       block_req;
 	struct p_delay_probe93   delay_probe93;
 	struct p_rs_uuid         rs_uuid;
+	struct p_block_desc      block_desc;
 } __packed;
 
 /**********************************************************************/
@@ -677,13 +681,6 @@ static inline enum drbd_thread_state get_t_state(struct drbd_thread *thi)
 	return thi->t_state;
 }
 
-
-/*
- * Having this as the first member of a struct provides sort of "inheritance".
- * "derived" structs can be "drbd_queue_work()"ed.
- * The callback should know and cast back to the descendant struct.
- * drbd_request and drbd_epoch_entry are descendants of drbd_work.
- */
 struct drbd_work;
 typedef int (*drbd_work_cb)(struct drbd_conf *, struct drbd_work *, int cancel);
 struct drbd_work {
@@ -712,9 +709,6 @@ struct drbd_request {
 	 * starting a new epoch...
 	 */
 
-	/* up to here, the struct layout is identical to drbd_epoch_entry;
-	 * we might be able to use that to our advantage...  */
-
 	struct list_head tl_requests; /* ring list in the transfer log */
 	struct bio *master_bio;       /* master bio pointer */
 	unsigned long rq_state; /* see comments above _req_mod() */
@@ -816,7 +810,7 @@ enum {
 
 /* global flag bits */
 enum {
-	CREATE_BARRIER,		/* next P_DATA is preceeded by a P_BARRIER */
+	CREATE_BARRIER,		/* next P_DATA is preceded by a P_BARRIER */
 	SIGNAL_ASENDER,		/* whether asender wants to be interrupted */
 	SEND_PING,		/* whether asender should send a ping asap */
 
@@ -831,7 +825,7 @@ enum {
 	CRASHED_PRIMARY,	/* This node was a crashed primary.
 				 * Gets cleared when the state.conn
 				 * goes into C_CONNECTED state. */
-	WRITE_BM_AFTER_RESYNC,	/* A kmalloc() during resync failed */
+	NO_BARRIER_SUPP,	/* underlying block device doesn't implement barriers */
 	CONSIDER_RESYNC,
 
 	MD_NO_FUA,		/* Users wants us to not use FUA/FLUSH on meta data dev */
@@ -856,10 +850,37 @@ enum {
 	GOT_PING_ACK,		/* set when we receive a ping_ack packet, misc wait gets woken */
 	NEW_CUR_UUID,		/* Create new current UUID when thawing IO */
 	AL_SUSPENDED,		/* Activity logging is currently suspended. */
+	AHEAD_TO_SYNC_SOURCE,   /* Ahead -> SyncSource queued */
 };
 
 struct drbd_bitmap; /* opaque for drbd_conf */
 
+/* definition of bits in bm_flags to be used in drbd_bm_lock
+ * and drbd_bitmap_io and friends. */
+enum bm_flag {
+	/* do we need to kfree, or vfree bm_pages? */
+	BM_P_VMALLOCED = 0x10000, /* internal use only, will be masked out */
+
+	/* currently locked for bulk operation */
+	BM_LOCKED_MASK = 0x7,
+
+	/* in detail, that is: */
+	BM_DONT_CLEAR = 0x1,
+	BM_DONT_SET   = 0x2,
+	BM_DONT_TEST  = 0x4,
+
+	/* (test bit, count bit) allowed (common case) */
+	BM_LOCKED_TEST_ALLOWED = 0x3,
+
+	/* testing bits, as well as setting new bits allowed, but clearing bits
+	 * would be unexpected.  Used during bitmap receive.  Setting new bits
+	 * requires sending of "out-of-sync" information, though. */
+	BM_LOCKED_SET_ALLOWED = 0x1,
+
+	/* clear is not expected while bitmap is locked for bulk operation */
+};
+
+
 /* TODO sort members for performance
  * MAYBE group them further */
 
@@ -925,6 +946,7 @@ struct drbd_md_io {
 struct bm_io_work {
 	struct drbd_work w;
 	char *why;
+	enum bm_flag flags;
 	int (*io_fn)(struct drbd_conf *mdev);
 	void (*done)(struct drbd_conf *mdev, int rv);
 };
@@ -963,9 +985,12 @@ struct drbd_conf {
 	struct drbd_work  resync_work,
 			  unplug_work,
 			  go_diskless,
-			  md_sync_work;
+			  md_sync_work,
+			  start_resync_work;
 	struct timer_list resync_timer;
 	struct timer_list md_sync_timer;
+	struct timer_list start_resync_timer;
+	struct timer_list request_timer;
 #ifdef DRBD_DEBUG_MD_SYNC
 	struct {
 		unsigned int line;
@@ -1000,9 +1025,9 @@ struct drbd_conf {
 	struct hlist_head *tl_hash;
 	unsigned int tl_hash_s;
 
-	/* blocks to sync in this run [unit BM_BLOCK_SIZE] */
+	/* blocks to resync in this run [unit BM_BLOCK_SIZE] */
 	unsigned long rs_total;
-	/* number of sync IOs that failed in this run */
+	/* number of resync blocks that failed in this run */
 	unsigned long rs_failed;
 	/* Syncer's start time [unit jiffies] */
 	unsigned long rs_start;
@@ -1101,7 +1126,8 @@ struct drbd_conf {
 	int c_sync_rate; /* current resync rate after syncer throttle magic */
 	struct fifo_buffer rs_plan_s; /* correction values of resync planer */
 	int rs_in_flight; /* resync sectors in flight (to proxy, in proxy and from proxy) */
-	int rs_planed;    /* resync sectors already planed */
+	int rs_planed;    /* resync sectors already planned */
+	atomic_t ap_in_flight; /* App sectors in flight (waiting for ack) */
 };
 
 static inline struct drbd_conf *minor_to_mdev(unsigned int minor)
@@ -1118,7 +1144,7 @@ static inline unsigned int mdev_to_minor(struct drbd_conf *mdev)
 	return mdev->minor;
 }
 
-/* returns 1 if it was successfull,
+/* returns 1 if it was successful,
  * returns 0 if there was no data socket.
  * so wherever you are going to use the data.socket, e.g. do
  * if (!drbd_get_data_sock(mdev))
@@ -1163,14 +1189,19 @@ enum dds_flags {
 };
 
 extern void drbd_init_set_defaults(struct drbd_conf *mdev);
-extern int drbd_change_state(struct drbd_conf *mdev, enum chg_state_flags f,
-			union drbd_state mask, union drbd_state val);
+extern enum drbd_state_rv drbd_change_state(struct drbd_conf *mdev,
+					    enum chg_state_flags f,
+					    union drbd_state mask,
+					    union drbd_state val);
 extern void drbd_force_state(struct drbd_conf *, union drbd_state,
 			union drbd_state);
-extern int _drbd_request_state(struct drbd_conf *, union drbd_state,
-			union drbd_state, enum chg_state_flags);
-extern int __drbd_set_state(struct drbd_conf *, union drbd_state,
-			    enum chg_state_flags, struct completion *done);
+extern enum drbd_state_rv _drbd_request_state(struct drbd_conf *,
+					      union drbd_state,
+					      union drbd_state,
+					      enum chg_state_flags);
+extern enum drbd_state_rv __drbd_set_state(struct drbd_conf *, union drbd_state,
+					   enum chg_state_flags,
+					   struct completion *done);
 extern void print_st_err(struct drbd_conf *, union drbd_state,
 			union drbd_state, int);
 extern int  drbd_thread_start(struct drbd_thread *thi);
@@ -1195,7 +1226,7 @@ extern int drbd_send(struct drbd_conf *mdev, struct socket *sock,
 extern int drbd_send_protocol(struct drbd_conf *mdev);
 extern int drbd_send_uuids(struct drbd_conf *mdev);
 extern int drbd_send_uuids_skip_initial_sync(struct drbd_conf *mdev);
-extern int drbd_send_sync_uuid(struct drbd_conf *mdev, u64 val);
+extern int drbd_gen_and_send_sync_uuid(struct drbd_conf *mdev);
 extern int drbd_send_sizes(struct drbd_conf *mdev, int trigger_reply, enum dds_flags flags);
 extern int _drbd_send_state(struct drbd_conf *mdev);
 extern int drbd_send_state(struct drbd_conf *mdev);
@@ -1220,11 +1251,10 @@ extern int drbd_send_ack_dp(struct drbd_conf *mdev, enum drbd_packets cmd,
 			struct p_data *dp, int data_size);
 extern int drbd_send_ack_ex(struct drbd_conf *mdev, enum drbd_packets cmd,
 			    sector_t sector, int blksize, u64 block_id);
+extern int drbd_send_oos(struct drbd_conf *mdev, struct drbd_request *req);
 extern int drbd_send_block(struct drbd_conf *mdev, enum drbd_packets cmd,
 			   struct drbd_epoch_entry *e);
 extern int drbd_send_dblock(struct drbd_conf *mdev, struct drbd_request *req);
-extern int _drbd_send_barrier(struct drbd_conf *mdev,
-			struct drbd_tl_epoch *barrier);
 extern int drbd_send_drequest(struct drbd_conf *mdev, int cmd,
 			      sector_t sector, int size, u64 block_id);
 extern int drbd_send_drequest_csum(struct drbd_conf *mdev,
@@ -1235,14 +1265,13 @@ extern int drbd_send_ov_request(struct drbd_conf *mdev,sector_t sector,int size)
 
 extern int drbd_send_bitmap(struct drbd_conf *mdev);
 extern int _drbd_send_bitmap(struct drbd_conf *mdev);
-extern int drbd_send_sr_reply(struct drbd_conf *mdev, int retcode);
+extern int drbd_send_sr_reply(struct drbd_conf *mdev, enum drbd_state_rv retcode);
 extern void drbd_free_bc(struct drbd_backing_dev *ldev);
 extern void drbd_mdev_cleanup(struct drbd_conf *mdev);
+void drbd_print_uuids(struct drbd_conf *mdev, const char *text);
 
-/* drbd_meta-data.c (still in drbd_main.c) */
 extern void drbd_md_sync(struct drbd_conf *mdev);
 extern int  drbd_md_read(struct drbd_conf *mdev, struct drbd_backing_dev *bdev);
-/* maybe define them below as inline? */
 extern void drbd_uuid_set(struct drbd_conf *mdev, int idx, u64 val) __must_hold(local);
 extern void _drbd_uuid_set(struct drbd_conf *mdev, int idx, u64 val) __must_hold(local);
 extern void drbd_uuid_new_current(struct drbd_conf *mdev) __must_hold(local);
@@ -1261,10 +1290,12 @@ extern void drbd_md_mark_dirty_(struct drbd_conf *mdev,
 extern void drbd_queue_bitmap_io(struct drbd_conf *mdev,
 				 int (*io_fn)(struct drbd_conf *),
 				 void (*done)(struct drbd_conf *, int),
-				 char *why);
+				 char *why, enum bm_flag flags);
+extern int drbd_bitmap_io(struct drbd_conf *mdev,
+		int (*io_fn)(struct drbd_conf *),
+		char *why, enum bm_flag flags);
 extern int drbd_bmio_set_n_write(struct drbd_conf *mdev);
 extern int drbd_bmio_clear_n_write(struct drbd_conf *mdev);
-extern int drbd_bitmap_io(struct drbd_conf *mdev, int (*io_fn)(struct drbd_conf *), char *why);
 extern void drbd_go_diskless(struct drbd_conf *mdev);
 extern void drbd_ldev_destroy(struct drbd_conf *mdev);
 
@@ -1313,6 +1344,7 @@ struct bm_extent {
 
 #define BME_NO_WRITES  0  /* bm_extent.flags: no more requests on this one! */
 #define BME_LOCKED     1  /* bm_extent.flags: syncer active on this one. */
+#define BME_PRIORITY   2  /* finish resync IO on this extent ASAP! App IO waiting! */
 
 /* drbd_bitmap.c */
 /*
@@ -1390,7 +1422,9 @@ struct bm_extent {
  * you should use 64bit OS for that much storage, anyways. */
 #define DRBD_MAX_SECTORS_FLEX BM_BIT_TO_SECT(0xffff7fff)
 #else
-#define DRBD_MAX_SECTORS_FLEX BM_BIT_TO_SECT(0x1LU << 32)
+/* we allow up to 1 PiB now on 64bit architecture with "flexible" meta data */
+#define DRBD_MAX_SECTORS_FLEX (1UL << 51)
+/* corresponds to (1UL << 38) bits right now. */
 #endif
 #endif
 
@@ -1398,7 +1432,7 @@ struct bm_extent {
  * With a value of 8 all IO in one 128K block make it to the same slot of the
  * hash table. */
 #define HT_SHIFT 8
-#define DRBD_MAX_SEGMENT_SIZE (1U<<(9+HT_SHIFT))
+#define DRBD_MAX_BIO_SIZE (1U<<(9+HT_SHIFT))
 
 #define DRBD_MAX_SIZE_H80_PACKET (1 << 15) /* The old header only allows packets up to 32Kib data */
 
@@ -1410,16 +1444,20 @@ extern int  drbd_bm_resize(struct drbd_conf *mdev, sector_t sectors, int set_new
 extern void drbd_bm_cleanup(struct drbd_conf *mdev);
 extern void drbd_bm_set_all(struct drbd_conf *mdev);
 extern void drbd_bm_clear_all(struct drbd_conf *mdev);
+/* set/clear/test only a few bits at a time */
 extern int  drbd_bm_set_bits(
 		struct drbd_conf *mdev, unsigned long s, unsigned long e);
 extern int  drbd_bm_clear_bits(
 		struct drbd_conf *mdev, unsigned long s, unsigned long e);
-/* bm_set_bits variant for use while holding drbd_bm_lock */
+extern int drbd_bm_count_bits(
+	struct drbd_conf *mdev, const unsigned long s, const unsigned long e);
+/* bm_set_bits variant for use while holding drbd_bm_lock,
+ * may process the whole bitmap in one go */
 extern void _drbd_bm_set_bits(struct drbd_conf *mdev,
 		const unsigned long s, const unsigned long e);
 extern int  drbd_bm_test_bit(struct drbd_conf *mdev, unsigned long bitnr);
 extern int  drbd_bm_e_weight(struct drbd_conf *mdev, unsigned long enr);
-extern int  drbd_bm_write_sect(struct drbd_conf *mdev, unsigned long enr) __must_hold(local);
+extern int  drbd_bm_write_page(struct drbd_conf *mdev, unsigned int idx) __must_hold(local);
 extern int  drbd_bm_read(struct drbd_conf *mdev) __must_hold(local);
 extern int  drbd_bm_write(struct drbd_conf *mdev) __must_hold(local);
 extern unsigned long drbd_bm_ALe_set_all(struct drbd_conf *mdev,
@@ -1427,6 +1465,8 @@ extern unsigned long drbd_bm_ALe_set_all(struct drbd_conf *mdev,
 extern size_t	     drbd_bm_words(struct drbd_conf *mdev);
 extern unsigned long drbd_bm_bits(struct drbd_conf *mdev);
 extern sector_t      drbd_bm_capacity(struct drbd_conf *mdev);
+
+#define DRBD_END_OF_BITMAP	(~(unsigned long)0)
 extern unsigned long drbd_bm_find_next(struct drbd_conf *mdev, unsigned long bm_fo);
 /* bm_find_next variants for use while you hold drbd_bm_lock() */
 extern unsigned long _drbd_bm_find_next(struct drbd_conf *mdev, unsigned long bm_fo);
@@ -1437,14 +1477,12 @@ extern int drbd_bm_rs_done(struct drbd_conf *mdev);
 /* for receive_bitmap */
 extern void drbd_bm_merge_lel(struct drbd_conf *mdev, size_t offset,
 		size_t number, unsigned long *buffer);
-/* for _drbd_send_bitmap and drbd_bm_write_sect */
+/* for _drbd_send_bitmap */
 extern void drbd_bm_get_lel(struct drbd_conf *mdev, size_t offset,
 		size_t number, unsigned long *buffer);
 
-extern void drbd_bm_lock(struct drbd_conf *mdev, char *why);
+extern void drbd_bm_lock(struct drbd_conf *mdev, char *why, enum bm_flag flags);
 extern void drbd_bm_unlock(struct drbd_conf *mdev);
-
-extern int drbd_bm_count_bits(struct drbd_conf *mdev, const unsigned long s, const unsigned long e);
 /* drbd_main.c */
 
 extern struct kmem_cache *drbd_request_cache;
@@ -1467,7 +1505,7 @@ extern void drbd_free_mdev(struct drbd_conf *mdev);
 extern int proc_details;
 
 /* drbd_req */
-extern int drbd_make_request_26(struct request_queue *q, struct bio *bio);
+extern int drbd_make_request(struct request_queue *q, struct bio *bio);
 extern int drbd_read_remote(struct drbd_conf *mdev, struct drbd_request *req);
 extern int drbd_merge_bvec(struct request_queue *q, struct bvec_merge_data *bvm, struct bio_vec *bvec);
 extern int is_valid_ar_handle(struct drbd_request *, sector_t);
@@ -1482,8 +1520,9 @@ enum determine_dev_size { dev_size_error = -1, unchanged = 0, shrunk = 1, grew =
 extern enum determine_dev_size drbd_determin_dev_size(struct drbd_conf *, enum dds_flags) __must_hold(local);
 extern void resync_after_online_grow(struct drbd_conf *);
 extern void drbd_setup_queue_param(struct drbd_conf *mdev, unsigned int) __must_hold(local);
-extern int drbd_set_role(struct drbd_conf *mdev, enum drbd_role new_role,
-		int force);
+extern enum drbd_state_rv drbd_set_role(struct drbd_conf *mdev,
+					enum drbd_role new_role,
+					int force);
 extern enum drbd_disk_state drbd_try_outdate_peer(struct drbd_conf *mdev);
 extern void drbd_try_outdate_peer_async(struct drbd_conf *mdev);
 extern int drbd_khelper(struct drbd_conf *mdev, char *cmd);
@@ -1499,6 +1538,7 @@ extern int drbd_resync_finished(struct drbd_conf *mdev);
 extern int drbd_md_sync_page_io(struct drbd_conf *mdev,
 		struct drbd_backing_dev *bdev, sector_t sector, int rw);
 extern void drbd_ov_oos_found(struct drbd_conf*, sector_t, int);
+extern void drbd_rs_controller_reset(struct drbd_conf *mdev);
 
 static inline void ov_oos_print(struct drbd_conf *mdev)
 {
@@ -1522,21 +1562,23 @@ extern int w_e_end_csum_rs_req(struct drbd_conf *, struct drbd_work *, int);
 extern int w_e_end_ov_reply(struct drbd_conf *, struct drbd_work *, int);
 extern int w_e_end_ov_req(struct drbd_conf *, struct drbd_work *, int);
 extern int w_ov_finished(struct drbd_conf *, struct drbd_work *, int);
-extern int w_resync_inactive(struct drbd_conf *, struct drbd_work *, int);
+extern int w_resync_timer(struct drbd_conf *, struct drbd_work *, int);
 extern int w_resume_next_sg(struct drbd_conf *, struct drbd_work *, int);
 extern int w_send_write_hint(struct drbd_conf *, struct drbd_work *, int);
-extern int w_make_resync_request(struct drbd_conf *, struct drbd_work *, int);
 extern int w_send_dblock(struct drbd_conf *, struct drbd_work *, int);
 extern int w_send_barrier(struct drbd_conf *, struct drbd_work *, int);
 extern int w_send_read_req(struct drbd_conf *, struct drbd_work *, int);
 extern int w_prev_work_done(struct drbd_conf *, struct drbd_work *, int);
 extern int w_e_reissue(struct drbd_conf *, struct drbd_work *, int);
 extern int w_restart_disk_io(struct drbd_conf *, struct drbd_work *, int);
+extern int w_send_oos(struct drbd_conf *, struct drbd_work *, int);
+extern int w_start_resync(struct drbd_conf *, struct drbd_work *, int);
 
 extern void resync_timer_fn(unsigned long data);
+extern void start_resync_timer_fn(unsigned long data);
 
 /* drbd_receiver.c */
-extern int drbd_rs_should_slow_down(struct drbd_conf *mdev);
+extern int drbd_rs_should_slow_down(struct drbd_conf *mdev, sector_t sector);
 extern int drbd_submit_ee(struct drbd_conf *mdev, struct drbd_epoch_entry *e,
 		const unsigned rw, const int fault_type);
 extern int drbd_release_ee(struct drbd_conf *mdev, struct list_head *list);
@@ -1619,16 +1661,16 @@ extern int drbd_rs_del_all(struct drbd_conf *mdev);
 extern void drbd_rs_failed_io(struct drbd_conf *mdev,
 		sector_t sector, int size);
 extern int drbd_al_read_log(struct drbd_conf *mdev, struct drbd_backing_dev *);
+extern void drbd_advance_rs_marks(struct drbd_conf *mdev, unsigned long still_to_go);
 extern void __drbd_set_in_sync(struct drbd_conf *mdev, sector_t sector,
 		int size, const char *file, const unsigned int line);
 #define drbd_set_in_sync(mdev, sector, size) \
 	__drbd_set_in_sync(mdev, sector, size, __FILE__, __LINE__)
-extern void __drbd_set_out_of_sync(struct drbd_conf *mdev, sector_t sector,
+extern int __drbd_set_out_of_sync(struct drbd_conf *mdev, sector_t sector,
 		int size, const char *file, const unsigned int line);
 #define drbd_set_out_of_sync(mdev, sector, size) \
 	__drbd_set_out_of_sync(mdev, sector, size, __FILE__, __LINE__)
 extern void drbd_al_apply_to_bm(struct drbd_conf *mdev);
-extern void drbd_al_to_on_disk_bm(struct drbd_conf *mdev);
 extern void drbd_al_shrink(struct drbd_conf *mdev);
 
 
@@ -1747,11 +1789,11 @@ static inline void drbd_state_unlock(struct drbd_conf *mdev)
 	wake_up(&mdev->misc_wait);
 }
 
-static inline int _drbd_set_state(struct drbd_conf *mdev,
-				   union drbd_state ns, enum chg_state_flags flags,
-				   struct completion *done)
+static inline enum drbd_state_rv
+_drbd_set_state(struct drbd_conf *mdev, union drbd_state ns,
+		enum chg_state_flags flags, struct completion *done)
 {
-	int rv;
+	enum drbd_state_rv rv;
 
 	read_lock(&global_state_lock);
 	rv = __drbd_set_state(mdev, ns, flags, done);
@@ -1982,17 +2024,17 @@ static inline int drbd_send_ping_ack(struct drbd_conf *mdev)
 
 static inline void drbd_thread_stop(struct drbd_thread *thi)
 {
-	_drbd_thread_stop(thi, FALSE, TRUE);
+	_drbd_thread_stop(thi, false, true);
 }
 
 static inline void drbd_thread_stop_nowait(struct drbd_thread *thi)
 {
-	_drbd_thread_stop(thi, FALSE, FALSE);
+	_drbd_thread_stop(thi, false, false);
 }
 
 static inline void drbd_thread_restart_nowait(struct drbd_thread *thi)
 {
-	_drbd_thread_stop(thi, TRUE, FALSE);
+	_drbd_thread_stop(thi, true, false);
 }
 
 /* counts how many answer packets packets we expect from our peer,
@@ -2037,7 +2079,7 @@ static inline void inc_ap_pending(struct drbd_conf *mdev)
 /* counts how many resync-related answers we still expect from the peer
  *		     increase			decrease
  * C_SYNC_TARGET sends P_RS_DATA_REQUEST (and expects P_RS_DATA_REPLY)
- * C_SYNC_SOURCE sends P_RS_DATA_REPLY   (and expects P_WRITE_ACK whith ID_SYNCER)
+ * C_SYNC_SOURCE sends P_RS_DATA_REPLY   (and expects P_WRITE_ACK with ID_SYNCER)
  *					   (or P_NEG_ACK with ID_SYNCER)
  */
 static inline void inc_rs_pending(struct drbd_conf *mdev)
@@ -2146,17 +2188,18 @@ extern int _get_ldev_if_state(struct drbd_conf *mdev, enum drbd_disk_state mins)
 static inline void drbd_get_syncer_progress(struct drbd_conf *mdev,
 		unsigned long *bits_left, unsigned int *per_mil_done)
 {
-	/*
-	 * this is to break it at compile time when we change that
-	 * (we may feel 4TB maximum storage per drbd is not enough)
-	 */
+	/* this is to break it at compile time when we change that, in case we
+	 * want to support more than (1<<32) bits on a 32bit arch. */
 	typecheck(unsigned long, mdev->rs_total);
 
 	/* note: both rs_total and rs_left are in bits, i.e. in
 	 * units of BM_BLOCK_SIZE.
 	 * for the percentage, we don't care. */
 
-	*bits_left = drbd_bm_total_weight(mdev) - mdev->rs_failed;
+	if (mdev->state.conn == C_VERIFY_S || mdev->state.conn == C_VERIFY_T)
+		*bits_left = mdev->ov_left;
+	else
+		*bits_left = drbd_bm_total_weight(mdev) - mdev->rs_failed;
 	/* >> 10 to prevent overflow,
 	 * +1 to prevent division by zero */
 	if (*bits_left > mdev->rs_total) {
@@ -2171,10 +2214,19 @@ static inline void drbd_get_syncer_progress(struct drbd_conf *mdev,
 				*bits_left, mdev->rs_total, mdev->rs_failed);
 		*per_mil_done = 0;
 	} else {
-		/* make sure the calculation happens in long context */
-		unsigned long tmp = 1000UL -
-				(*bits_left >> 10)*1000UL
-				/ ((mdev->rs_total >> 10) + 1UL);
+		/* Make sure the division happens in long context.
+		 * We allow up to one petabyte storage right now,
+		 * at a granularity of 4k per bit that is 2**38 bits.
+		 * After shift right and multiplication by 1000,
+		 * this should still fit easily into a 32bit long,
+		 * so we don't need a 64bit division on 32bit arch.
+		 * Note: currently we don't support such large bitmaps on 32bit
+		 * arch anyways, but no harm done to be prepared for it here.
+		 */
+		unsigned int shift = mdev->rs_total >= (1ULL << 32) ? 16 : 10;
+		unsigned long left = *bits_left >> shift;
+		unsigned long total = 1UL + (mdev->rs_total >> shift);
+		unsigned long tmp = 1000UL - left * 1000UL/total;
 		*per_mil_done = tmp;
 	}
 }
@@ -2193,8 +2245,9 @@ static inline int drbd_get_max_buffers(struct drbd_conf *mdev)
 	return mxb;
 }
 
-static inline int drbd_state_is_stable(union drbd_state s)
+static inline int drbd_state_is_stable(struct drbd_conf *mdev)
 {
+	union drbd_state s = mdev->state;
 
 	/* DO NOT add a default clause, we want the compiler to warn us
 	 * for any newly introduced state we may have forgotten to add here */
@@ -2211,11 +2264,9 @@ static inline int drbd_state_is_stable(union drbd_state s)
 	case C_VERIFY_T:
 	case C_PAUSED_SYNC_S:
 	case C_PAUSED_SYNC_T:
-		/* maybe stable, look at the disk state */
-		break;
-
-	/* no new io accepted during tansitional states
-	 * like handshake or teardown */
+	case C_AHEAD:
+	case C_BEHIND:
+		/* transitional states, IO allowed */
 	case C_DISCONNECTING:
 	case C_UNCONNECTED:
 	case C_TIMEOUT:
@@ -2226,7 +2277,15 @@ static inline int drbd_state_is_stable(union drbd_state s)
 	case C_WF_REPORT_PARAMS:
 	case C_STARTING_SYNC_S:
 	case C_STARTING_SYNC_T:
+		break;
+
+		/* Allow IO in BM exchange states with new protocols */
 	case C_WF_BITMAP_S:
+		if (mdev->agreed_pro_version < 96)
+			return 0;
+		break;
+
+		/* no new io accepted in these states */
 	case C_WF_BITMAP_T:
 	case C_WF_SYNC_UUID:
 	case C_MASK:
@@ -2261,41 +2320,47 @@ static inline int is_susp(union drbd_state s)
 	return s.susp || s.susp_nod || s.susp_fen;
 }
 
-static inline int __inc_ap_bio_cond(struct drbd_conf *mdev)
+static inline bool may_inc_ap_bio(struct drbd_conf *mdev)
 {
 	int mxb = drbd_get_max_buffers(mdev);
 
 	if (is_susp(mdev->state))
-		return 0;
+		return false;
 	if (test_bit(SUSPEND_IO, &mdev->flags))
-		return 0;
+		return false;
 
 	/* to avoid potential deadlock or bitmap corruption,
 	 * in various places, we only allow new application io
 	 * to start during "stable" states. */
 
 	/* no new io accepted when attaching or detaching the disk */
-	if (!drbd_state_is_stable(mdev->state))
-		return 0;
+	if (!drbd_state_is_stable(mdev))
+		return false;
 
 	/* since some older kernels don't have atomic_add_unless,
 	 * and we are within the spinlock anyways, we have this workaround.  */
 	if (atomic_read(&mdev->ap_bio_cnt) > mxb)
-		return 0;
+		return false;
 	if (test_bit(BITMAP_IO, &mdev->flags))
-		return 0;
-	return 1;
+		return false;
+	return true;
 }
 
-/* I'd like to use wait_event_lock_irq,
- * but I'm not sure when it got introduced,
- * and not sure when it has 3 or 4 arguments */
-static inline void inc_ap_bio(struct drbd_conf *mdev, int count)
+static inline bool inc_ap_bio_cond(struct drbd_conf *mdev, int count)
 {
-	/* compare with after_state_ch,
-	 * os.conn != C_WF_BITMAP_S && ns.conn == C_WF_BITMAP_S */
-	DEFINE_WAIT(wait);
+	bool rv = false;
+
+	spin_lock_irq(&mdev->req_lock);
+	rv = may_inc_ap_bio(mdev);
+	if (rv)
+		atomic_add(count, &mdev->ap_bio_cnt);
+	spin_unlock_irq(&mdev->req_lock);
+
+	return rv;
+}
 
+static inline void inc_ap_bio(struct drbd_conf *mdev, int count)
+{
 	/* we wait here
 	 *    as long as the device is suspended
 	 *    until the bitmap is no longer on the fly during connection
@@ -2304,16 +2369,7 @@ static inline void inc_ap_bio(struct drbd_conf *mdev, int count)
 	 * to avoid races with the reconnect code,
 	 * we need to atomic_inc within the spinlock. */
 
-	spin_lock_irq(&mdev->req_lock);
-	while (!__inc_ap_bio_cond(mdev)) {
-		prepare_to_wait(&mdev->misc_wait, &wait, TASK_UNINTERRUPTIBLE);
-		spin_unlock_irq(&mdev->req_lock);
-		schedule();
-		finish_wait(&mdev->misc_wait, &wait);
-		spin_lock_irq(&mdev->req_lock);
-	}
-	atomic_add(count, &mdev->ap_bio_cnt);
-	spin_unlock_irq(&mdev->req_lock);
+	wait_event(mdev->misc_wait, inc_ap_bio_cond(mdev, count));
 }
 
 static inline void dec_ap_bio(struct drbd_conf *mdev)
@@ -2333,9 +2389,11 @@ static inline void dec_ap_bio(struct drbd_conf *mdev)
 	}
 }
 
-static inline void drbd_set_ed_uuid(struct drbd_conf *mdev, u64 val)
+static inline int drbd_set_ed_uuid(struct drbd_conf *mdev, u64 val)
 {
+	int changed = mdev->ed_uuid != val;
 	mdev->ed_uuid = val;
+	return changed;
 }
 
 static inline int seq_cmp(u32 a, u32 b)
diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c
index 8a43ce0edeed..5b525c179f39 100644
--- a/drivers/block/drbd/drbd_main.c
+++ b/drivers/block/drbd/drbd_main.c
@@ -85,7 +85,8 @@ MODULE_AUTHOR("Philipp Reisner <phil@linbit.com>, "
 MODULE_DESCRIPTION("drbd - Distributed Replicated Block Device v" REL_VERSION);
 MODULE_VERSION(REL_VERSION);
 MODULE_LICENSE("GPL");
-MODULE_PARM_DESC(minor_count, "Maximum number of drbd devices (1-255)");
+MODULE_PARM_DESC(minor_count, "Maximum number of drbd devices ("
+		 __stringify(DRBD_MINOR_COUNT_MIN) "-" __stringify(DRBD_MINOR_COUNT_MAX) ")");
 MODULE_ALIAS_BLOCKDEV_MAJOR(DRBD_MAJOR);
 
 #include <linux/moduleparam.h>
@@ -115,7 +116,7 @@ module_param(fault_devs, int, 0644);
 #endif
 
 /* module parameter, defined */
-unsigned int minor_count = 32;
+unsigned int minor_count = DRBD_MINOR_COUNT_DEF;
 int disable_sendpage;
 int allow_oos;
 unsigned int cn_idx = CN_IDX_DRBD;
@@ -335,6 +336,7 @@ bail:
 	drbd_force_state(mdev, NS(conn, C_PROTOCOL_ERROR));
 }
 
+
 /**
  * _tl_restart() - Walks the transfer log, and applies an action to all requests
  * @mdev:	DRBD device.
@@ -456,7 +458,7 @@ void tl_restart(struct drbd_conf *mdev, enum drbd_req_event what)
 }
 
 /**
- * cl_wide_st_chg() - TRUE if the state change is a cluster wide one
+ * cl_wide_st_chg() - true if the state change is a cluster wide one
  * @mdev:	DRBD device.
  * @os:		old (current) state.
  * @ns:		new (wanted) state.
@@ -473,12 +475,13 @@ static int cl_wide_st_chg(struct drbd_conf *mdev,
 		(os.conn == C_CONNECTED && ns.conn == C_VERIFY_S);
 }
 
-int drbd_change_state(struct drbd_conf *mdev, enum chg_state_flags f,
-		      union drbd_state mask, union drbd_state val)
+enum drbd_state_rv
+drbd_change_state(struct drbd_conf *mdev, enum chg_state_flags f,
+		  union drbd_state mask, union drbd_state val)
 {
 	unsigned long flags;
 	union drbd_state os, ns;
-	int rv;
+	enum drbd_state_rv rv;
 
 	spin_lock_irqsave(&mdev->req_lock, flags);
 	os = mdev->state;
@@ -502,20 +505,22 @@ void drbd_force_state(struct drbd_conf *mdev,
 	drbd_change_state(mdev, CS_HARD, mask, val);
 }
 
-static int is_valid_state(struct drbd_conf *mdev, union drbd_state ns);
-static int is_valid_state_transition(struct drbd_conf *,
-				     union drbd_state, union drbd_state);
+static enum drbd_state_rv is_valid_state(struct drbd_conf *, union drbd_state);
+static enum drbd_state_rv is_valid_state_transition(struct drbd_conf *,
+						    union drbd_state,
+						    union drbd_state);
 static union drbd_state sanitize_state(struct drbd_conf *mdev, union drbd_state os,
 				       union drbd_state ns, const char **warn_sync_abort);
 int drbd_send_state_req(struct drbd_conf *,
 			union drbd_state, union drbd_state);
 
-static enum drbd_state_ret_codes _req_st_cond(struct drbd_conf *mdev,
-				    union drbd_state mask, union drbd_state val)
+static enum drbd_state_rv
+_req_st_cond(struct drbd_conf *mdev, union drbd_state mask,
+	     union drbd_state val)
 {
 	union drbd_state os, ns;
 	unsigned long flags;
-	int rv;
+	enum drbd_state_rv rv;
 
 	if (test_and_clear_bit(CL_ST_CHG_SUCCESS, &mdev->flags))
 		return SS_CW_SUCCESS;
@@ -536,7 +541,7 @@ static enum drbd_state_ret_codes _req_st_cond(struct drbd_conf *mdev,
 		if (rv == SS_SUCCESS) {
 			rv = is_valid_state_transition(mdev, ns, os);
 			if (rv == SS_SUCCESS)
-				rv = 0; /* cont waiting, otherwise fail. */
+				rv = SS_UNKNOWN_ERROR; /* cont waiting, otherwise fail. */
 		}
 	}
 	spin_unlock_irqrestore(&mdev->req_lock, flags);
@@ -554,14 +559,14 @@ static enum drbd_state_ret_codes _req_st_cond(struct drbd_conf *mdev,
  * Should not be called directly, use drbd_request_state() or
  * _drbd_request_state().
  */
-static int drbd_req_state(struct drbd_conf *mdev,
-			  union drbd_state mask, union drbd_state val,
-			  enum chg_state_flags f)
+static enum drbd_state_rv
+drbd_req_state(struct drbd_conf *mdev, union drbd_state mask,
+	       union drbd_state val, enum chg_state_flags f)
 {
 	struct completion done;
 	unsigned long flags;
 	union drbd_state os, ns;
-	int rv;
+	enum drbd_state_rv rv;
 
 	init_completion(&done);
 
@@ -636,10 +641,11 @@ abort:
  * Cousin of drbd_request_state(), useful with the CS_WAIT_COMPLETE
  * flag, or when logging of failed state change requests is not desired.
  */
-int _drbd_request_state(struct drbd_conf *mdev,	union drbd_state mask,
-			union drbd_state val,	enum chg_state_flags f)
+enum drbd_state_rv
+_drbd_request_state(struct drbd_conf *mdev, union drbd_state mask,
+		    union drbd_state val, enum chg_state_flags f)
 {
-	int rv;
+	enum drbd_state_rv rv;
 
 	wait_event(mdev->state_wait,
 		   (rv = drbd_req_state(mdev, mask, val, f)) != SS_IN_TRANSIENT_STATE);
@@ -663,8 +669,8 @@ static void print_st(struct drbd_conf *mdev, char *name, union drbd_state ns)
 	    );
 }
 
-void print_st_err(struct drbd_conf *mdev,
-	union drbd_state os, union drbd_state ns, int err)
+void print_st_err(struct drbd_conf *mdev, union drbd_state os,
+	          union drbd_state ns, enum drbd_state_rv err)
 {
 	if (err == SS_IN_TRANSIENT_STATE)
 		return;
@@ -674,32 +680,18 @@ void print_st_err(struct drbd_conf *mdev,
 }
 
 
-#define drbd_peer_str drbd_role_str
-#define drbd_pdsk_str drbd_disk_str
-
-#define drbd_susp_str(A)     ((A) ? "1" : "0")
-#define drbd_aftr_isp_str(A) ((A) ? "1" : "0")
-#define drbd_peer_isp_str(A) ((A) ? "1" : "0")
-#define drbd_user_isp_str(A) ((A) ? "1" : "0")
-
-#define PSC(A) \
-	({ if (ns.A != os.A) { \
-		pbp += sprintf(pbp, #A "( %s -> %s ) ", \
-			      drbd_##A##_str(os.A), \
-			      drbd_##A##_str(ns.A)); \
-	} })
-
 /**
  * is_valid_state() - Returns an SS_ error code if ns is not valid
  * @mdev:	DRBD device.
  * @ns:		State to consider.
  */
-static int is_valid_state(struct drbd_conf *mdev, union drbd_state ns)
+static enum drbd_state_rv
+is_valid_state(struct drbd_conf *mdev, union drbd_state ns)
 {
 	/* See drbd_state_sw_errors in drbd_strings.c */
 
 	enum drbd_fencing_p fp;
-	int rv = SS_SUCCESS;
+	enum drbd_state_rv rv = SS_SUCCESS;
 
 	fp = FP_DONT_CARE;
 	if (get_ldev(mdev)) {
@@ -762,10 +754,11 @@ static int is_valid_state(struct drbd_conf *mdev, union drbd_state ns)
  * @ns:		new state.
  * @os:		old state.
  */
-static int is_valid_state_transition(struct drbd_conf *mdev,
-				     union drbd_state ns, union drbd_state os)
+static enum drbd_state_rv
+is_valid_state_transition(struct drbd_conf *mdev, union drbd_state ns,
+			  union drbd_state os)
 {
-	int rv = SS_SUCCESS;
+	enum drbd_state_rv rv = SS_SUCCESS;
 
 	if ((ns.conn == C_STARTING_SYNC_T || ns.conn == C_STARTING_SYNC_S) &&
 	    os.conn > C_CONNECTED)
@@ -800,6 +793,10 @@ static int is_valid_state_transition(struct drbd_conf *mdev,
 	    os.conn < C_CONNECTED)
 		rv = SS_NEED_CONNECTION;
 
+	if ((ns.conn == C_SYNC_TARGET || ns.conn == C_SYNC_SOURCE)
+	    && os.conn < C_WF_REPORT_PARAMS)
+		rv = SS_NEED_CONNECTION; /* No NetworkFailure -> SyncTarget etc... */
+
 	return rv;
 }
 
@@ -817,6 +814,7 @@ static union drbd_state sanitize_state(struct drbd_conf *mdev, union drbd_state
 				       union drbd_state ns, const char **warn_sync_abort)
 {
 	enum drbd_fencing_p fp;
+	enum drbd_disk_state disk_min, disk_max, pdsk_min, pdsk_max;
 
 	fp = FP_DONT_CARE;
 	if (get_ldev(mdev)) {
@@ -869,56 +867,6 @@ static union drbd_state sanitize_state(struct drbd_conf *mdev, union drbd_state
 		ns.conn = C_CONNECTED;
 	}
 
-	if (ns.conn >= C_CONNECTED &&
-	    ((ns.disk == D_CONSISTENT || ns.disk == D_OUTDATED) ||
-	     (ns.disk == D_NEGOTIATING && ns.conn == C_WF_BITMAP_T))) {
-		switch (ns.conn) {
-		case C_WF_BITMAP_T:
-		case C_PAUSED_SYNC_T:
-			ns.disk = D_OUTDATED;
-			break;
-		case C_CONNECTED:
-		case C_WF_BITMAP_S:
-		case C_SYNC_SOURCE:
-		case C_PAUSED_SYNC_S:
-			ns.disk = D_UP_TO_DATE;
-			break;
-		case C_SYNC_TARGET:
-			ns.disk = D_INCONSISTENT;
-			dev_warn(DEV, "Implicitly set disk state Inconsistent!\n");
-			break;
-		}
-		if (os.disk == D_OUTDATED && ns.disk == D_UP_TO_DATE)
-			dev_warn(DEV, "Implicitly set disk from Outdated to UpToDate\n");
-	}
-
-	if (ns.conn >= C_CONNECTED &&
-	    (ns.pdsk == D_CONSISTENT || ns.pdsk == D_OUTDATED)) {
-		switch (ns.conn) {
-		case C_CONNECTED:
-		case C_WF_BITMAP_T:
-		case C_PAUSED_SYNC_T:
-		case C_SYNC_TARGET:
-			ns.pdsk = D_UP_TO_DATE;
-			break;
-		case C_WF_BITMAP_S:
-		case C_PAUSED_SYNC_S:
-			/* remap any consistent state to D_OUTDATED,
-			 * but disallow "upgrade" of not even consistent states.
-			 */
-			ns.pdsk =
-				(D_DISKLESS < os.pdsk && os.pdsk < D_OUTDATED)
-				? os.pdsk : D_OUTDATED;
-			break;
-		case C_SYNC_SOURCE:
-			ns.pdsk = D_INCONSISTENT;
-			dev_warn(DEV, "Implicitly set pdsk Inconsistent!\n");
-			break;
-		}
-		if (os.pdsk == D_OUTDATED && ns.pdsk == D_UP_TO_DATE)
-			dev_warn(DEV, "Implicitly set pdsk from Outdated to UpToDate\n");
-	}
-
 	/* Connection breaks down before we finished "Negotiating" */
 	if (ns.conn < C_CONNECTED && ns.disk == D_NEGOTIATING &&
 	    get_ldev_if_state(mdev, D_NEGOTIATING)) {
@@ -933,6 +881,94 @@ static union drbd_state sanitize_state(struct drbd_conf *mdev, union drbd_state
 		put_ldev(mdev);
 	}
 
+	/* D_CONSISTENT and D_OUTDATED vanish when we get connected */
+	if (ns.conn >= C_CONNECTED && ns.conn < C_AHEAD) {
+		if (ns.disk == D_CONSISTENT || ns.disk == D_OUTDATED)
+			ns.disk = D_UP_TO_DATE;
+		if (ns.pdsk == D_CONSISTENT || ns.pdsk == D_OUTDATED)
+			ns.pdsk = D_UP_TO_DATE;
+	}
+
+	/* Implications of the connection stat on the disk states */
+	disk_min = D_DISKLESS;
+	disk_max = D_UP_TO_DATE;
+	pdsk_min = D_INCONSISTENT;
+	pdsk_max = D_UNKNOWN;
+	switch ((enum drbd_conns)ns.conn) {
+	case C_WF_BITMAP_T:
+	case C_PAUSED_SYNC_T:
+	case C_STARTING_SYNC_T:
+	case C_WF_SYNC_UUID:
+	case C_BEHIND:
+		disk_min = D_INCONSISTENT;
+		disk_max = D_OUTDATED;
+		pdsk_min = D_UP_TO_DATE;
+		pdsk_max = D_UP_TO_DATE;
+		break;
+	case C_VERIFY_S:
+	case C_VERIFY_T:
+		disk_min = D_UP_TO_DATE;
+		disk_max = D_UP_TO_DATE;
+		pdsk_min = D_UP_TO_DATE;
+		pdsk_max = D_UP_TO_DATE;
+		break;
+	case C_CONNECTED:
+		disk_min = D_DISKLESS;
+		disk_max = D_UP_TO_DATE;
+		pdsk_min = D_DISKLESS;
+		pdsk_max = D_UP_TO_DATE;
+		break;
+	case C_WF_BITMAP_S:
+	case C_PAUSED_SYNC_S:
+	case C_STARTING_SYNC_S:
+	case C_AHEAD:
+		disk_min = D_UP_TO_DATE;
+		disk_max = D_UP_TO_DATE;
+		pdsk_min = D_INCONSISTENT;
+		pdsk_max = D_CONSISTENT; /* D_OUTDATED would be nice. But explicit outdate necessary*/
+		break;
+	case C_SYNC_TARGET:
+		disk_min = D_INCONSISTENT;
+		disk_max = D_INCONSISTENT;
+		pdsk_min = D_UP_TO_DATE;
+		pdsk_max = D_UP_TO_DATE;
+		break;
+	case C_SYNC_SOURCE:
+		disk_min = D_UP_TO_DATE;
+		disk_max = D_UP_TO_DATE;
+		pdsk_min = D_INCONSISTENT;
+		pdsk_max = D_INCONSISTENT;
+		break;
+	case C_STANDALONE:
+	case C_DISCONNECTING:
+	case C_UNCONNECTED:
+	case C_TIMEOUT:
+	case C_BROKEN_PIPE:
+	case C_NETWORK_FAILURE:
+	case C_PROTOCOL_ERROR:
+	case C_TEAR_DOWN:
+	case C_WF_CONNECTION:
+	case C_WF_REPORT_PARAMS:
+	case C_MASK:
+		break;
+	}
+	if (ns.disk > disk_max)
+		ns.disk = disk_max;
+
+	if (ns.disk < disk_min) {
+		dev_warn(DEV, "Implicitly set disk from %s to %s\n",
+			 drbd_disk_str(ns.disk), drbd_disk_str(disk_min));
+		ns.disk = disk_min;
+	}
+	if (ns.pdsk > pdsk_max)
+		ns.pdsk = pdsk_max;
+
+	if (ns.pdsk < pdsk_min) {
+		dev_warn(DEV, "Implicitly set pdsk from %s to %s\n",
+			 drbd_disk_str(ns.pdsk), drbd_disk_str(pdsk_min));
+		ns.pdsk = pdsk_min;
+	}
+
 	if (fp == FP_STONITH &&
 	    (ns.role == R_PRIMARY && ns.conn < C_CONNECTED && ns.pdsk > D_OUTDATED) &&
 	    !(os.role == R_PRIMARY && os.conn < C_CONNECTED && os.pdsk > D_OUTDATED))
@@ -961,6 +997,10 @@ static union drbd_state sanitize_state(struct drbd_conf *mdev, union drbd_state
 /* helper for __drbd_set_state */
 static void set_ov_position(struct drbd_conf *mdev, enum drbd_conns cs)
 {
+	if (mdev->agreed_pro_version < 90)
+		mdev->ov_start_sector = 0;
+	mdev->rs_total = drbd_bm_bits(mdev);
+	mdev->ov_position = 0;
 	if (cs == C_VERIFY_T) {
 		/* starting online verify from an arbitrary position
 		 * does not fit well into the existing protocol.
@@ -970,11 +1010,15 @@ static void set_ov_position(struct drbd_conf *mdev, enum drbd_conns cs)
 		mdev->ov_start_sector = ~(sector_t)0;
 	} else {
 		unsigned long bit = BM_SECT_TO_BIT(mdev->ov_start_sector);
-		if (bit >= mdev->rs_total)
+		if (bit >= mdev->rs_total) {
 			mdev->ov_start_sector =
 				BM_BIT_TO_SECT(mdev->rs_total - 1);
+			mdev->rs_total = 1;
+		} else
+			mdev->rs_total -= bit;
 		mdev->ov_position = mdev->ov_start_sector;
 	}
+	mdev->ov_left = mdev->rs_total;
 }
 
 static void drbd_resume_al(struct drbd_conf *mdev)
@@ -992,12 +1036,12 @@ static void drbd_resume_al(struct drbd_conf *mdev)
  *
  * Caller needs to hold req_lock, and global_state_lock. Do not call directly.
  */
-int __drbd_set_state(struct drbd_conf *mdev,
-		    union drbd_state ns, enum chg_state_flags flags,
-		    struct completion *done)
+enum drbd_state_rv
+__drbd_set_state(struct drbd_conf *mdev, union drbd_state ns,
+	         enum chg_state_flags flags, struct completion *done)
 {
 	union drbd_state os;
-	int rv = SS_SUCCESS;
+	enum drbd_state_rv rv = SS_SUCCESS;
 	const char *warn_sync_abort = NULL;
 	struct after_state_chg_work *ascw;
 
@@ -1033,22 +1077,46 @@ int __drbd_set_state(struct drbd_conf *mdev,
 		dev_warn(DEV, "%s aborted.\n", warn_sync_abort);
 
 	{
-		char *pbp, pb[300];
-		pbp = pb;
-		*pbp = 0;
-		PSC(role);
-		PSC(peer);
-		PSC(conn);
-		PSC(disk);
-		PSC(pdsk);
-		if (is_susp(ns) != is_susp(os))
-			pbp += sprintf(pbp, "susp( %s -> %s ) ",
-				       drbd_susp_str(is_susp(os)),
-				       drbd_susp_str(is_susp(ns)));
-		PSC(aftr_isp);
-		PSC(peer_isp);
-		PSC(user_isp);
-		dev_info(DEV, "%s\n", pb);
+	char *pbp, pb[300];
+	pbp = pb;
+	*pbp = 0;
+	if (ns.role != os.role)
+		pbp += sprintf(pbp, "role( %s -> %s ) ",
+			       drbd_role_str(os.role),
+			       drbd_role_str(ns.role));
+	if (ns.peer != os.peer)
+		pbp += sprintf(pbp, "peer( %s -> %s ) ",
+			       drbd_role_str(os.peer),
+			       drbd_role_str(ns.peer));
+	if (ns.conn != os.conn)
+		pbp += sprintf(pbp, "conn( %s -> %s ) ",
+			       drbd_conn_str(os.conn),
+			       drbd_conn_str(ns.conn));
+	if (ns.disk != os.disk)
+		pbp += sprintf(pbp, "disk( %s -> %s ) ",
+			       drbd_disk_str(os.disk),
+			       drbd_disk_str(ns.disk));
+	if (ns.pdsk != os.pdsk)
+		pbp += sprintf(pbp, "pdsk( %s -> %s ) ",
+			       drbd_disk_str(os.pdsk),
+			       drbd_disk_str(ns.pdsk));
+	if (is_susp(ns) != is_susp(os))
+		pbp += sprintf(pbp, "susp( %d -> %d ) ",
+			       is_susp(os),
+			       is_susp(ns));
+	if (ns.aftr_isp != os.aftr_isp)
+		pbp += sprintf(pbp, "aftr_isp( %d -> %d ) ",
+			       os.aftr_isp,
+			       ns.aftr_isp);
+	if (ns.peer_isp != os.peer_isp)
+		pbp += sprintf(pbp, "peer_isp( %d -> %d ) ",
+			       os.peer_isp,
+			       ns.peer_isp);
+	if (ns.user_isp != os.user_isp)
+		pbp += sprintf(pbp, "user_isp( %d -> %d ) ",
+			       os.user_isp,
+			       ns.user_isp);
+	dev_info(DEV, "%s\n", pb);
 	}
 
 	/* solve the race between becoming unconfigured,
@@ -1074,6 +1142,10 @@ int __drbd_set_state(struct drbd_conf *mdev,
 		atomic_inc(&mdev->local_cnt);
 
 	mdev->state = ns;
+
+	if (os.disk == D_ATTACHING && ns.disk >= D_NEGOTIATING)
+		drbd_print_uuids(mdev, "attached to UUIDs");
+
 	wake_up(&mdev->misc_wait);
 	wake_up(&mdev->state_wait);
 
@@ -1081,7 +1153,7 @@ int __drbd_set_state(struct drbd_conf *mdev,
 	if ((os.conn == C_VERIFY_S || os.conn == C_VERIFY_T) &&
 	    ns.conn < C_CONNECTED) {
 		mdev->ov_start_sector =
-			BM_BIT_TO_SECT(mdev->rs_total - mdev->ov_left);
+			BM_BIT_TO_SECT(drbd_bm_bits(mdev) - mdev->ov_left);
 		dev_info(DEV, "Online Verify reached sector %llu\n",
 			(unsigned long long)mdev->ov_start_sector);
 	}
@@ -1106,14 +1178,7 @@ int __drbd_set_state(struct drbd_conf *mdev,
 		unsigned long now = jiffies;
 		int i;
 
-		mdev->ov_position = 0;
-		mdev->rs_total = drbd_bm_bits(mdev);
-		if (mdev->agreed_pro_version >= 90)
-			set_ov_position(mdev, ns.conn);
-		else
-			mdev->ov_start_sector = 0;
-		mdev->ov_left = mdev->rs_total
-			      - BM_SECT_TO_BIT(mdev->ov_position);
+		set_ov_position(mdev, ns.conn);
 		mdev->rs_start = now;
 		mdev->rs_last_events = 0;
 		mdev->rs_last_sect_ev = 0;
@@ -1121,10 +1186,12 @@ int __drbd_set_state(struct drbd_conf *mdev,
 		mdev->ov_last_oos_start = 0;
 
 		for (i = 0; i < DRBD_SYNC_MARKS; i++) {
-			mdev->rs_mark_left[i] = mdev->rs_total;
+			mdev->rs_mark_left[i] = mdev->ov_left;
 			mdev->rs_mark_time[i] = now;
 		}
 
+		drbd_rs_controller_reset(mdev);
+
 		if (ns.conn == C_VERIFY_S) {
 			dev_info(DEV, "Starting Online Verify from sector %llu\n",
 					(unsigned long long)mdev->ov_position);
@@ -1228,6 +1295,26 @@ static void abw_start_sync(struct drbd_conf *mdev, int rv)
 	}
 }
 
+int drbd_bitmap_io_from_worker(struct drbd_conf *mdev,
+		int (*io_fn)(struct drbd_conf *),
+		char *why, enum bm_flag flags)
+{
+	int rv;
+
+	D_ASSERT(current == mdev->worker.task);
+
+	/* open coded non-blocking drbd_suspend_io(mdev); */
+	set_bit(SUSPEND_IO, &mdev->flags);
+
+	drbd_bm_lock(mdev, why, flags);
+	rv = io_fn(mdev);
+	drbd_bm_unlock(mdev);
+
+	drbd_resume_io(mdev);
+
+	return rv;
+}
+
 /**
  * after_state_ch() - Perform after state change actions that may sleep
  * @mdev:	DRBD device.
@@ -1266,16 +1353,14 @@ static void after_state_ch(struct drbd_conf *mdev, union drbd_state os,
 
 	nsm.i = -1;
 	if (ns.susp_nod) {
-		if (os.conn < C_CONNECTED && ns.conn >= C_CONNECTED) {
-			if (ns.conn == C_CONNECTED)
-				what = resend, nsm.susp_nod = 0;
-			else /* ns.conn > C_CONNECTED */
-				dev_err(DEV, "Unexpected Resynd going on!\n");
-		}
+		if (os.conn < C_CONNECTED && ns.conn >= C_CONNECTED)
+			what = resend;
 
 		if (os.disk == D_ATTACHING && ns.disk > D_ATTACHING)
-			what = restart_frozen_disk_io, nsm.susp_nod = 0;
+			what = restart_frozen_disk_io;
 
+		if (what != nothing)
+			nsm.susp_nod = 0;
 	}
 
 	if (ns.susp_fen) {
@@ -1306,13 +1391,30 @@ static void after_state_ch(struct drbd_conf *mdev, union drbd_state os,
 		spin_unlock_irq(&mdev->req_lock);
 	}
 
+	/* Became sync source.  With protocol >= 96, we still need to send out
+	 * the sync uuid now. Need to do that before any drbd_send_state, or
+	 * the other side may go "paused sync" before receiving the sync uuids,
+	 * which is unexpected. */
+	if ((os.conn != C_SYNC_SOURCE && os.conn != C_PAUSED_SYNC_S) &&
+	    (ns.conn == C_SYNC_SOURCE || ns.conn == C_PAUSED_SYNC_S) &&
+	    mdev->agreed_pro_version >= 96 && get_ldev(mdev)) {
+		drbd_gen_and_send_sync_uuid(mdev);
+		put_ldev(mdev);
+	}
+
 	/* Do not change the order of the if above and the two below... */
 	if (os.pdsk == D_DISKLESS && ns.pdsk > D_DISKLESS) {      /* attach on the peer */
 		drbd_send_uuids(mdev);
 		drbd_send_state(mdev);
 	}
-	if (os.conn != C_WF_BITMAP_S && ns.conn == C_WF_BITMAP_S)
-		drbd_queue_bitmap_io(mdev, &drbd_send_bitmap, NULL, "send_bitmap (WFBitMapS)");
+	/* No point in queuing send_bitmap if we don't have a connection
+	 * anymore, so check also the _current_ state, not only the new state
+	 * at the time this work was queued. */
+	if (os.conn != C_WF_BITMAP_S && ns.conn == C_WF_BITMAP_S &&
+	    mdev->state.conn == C_WF_BITMAP_S)
+		drbd_queue_bitmap_io(mdev, &drbd_send_bitmap, NULL,
+				"send_bitmap (WFBitMapS)",
+				BM_LOCKED_TEST_ALLOWED);
 
 	/* Lost contact to peer's copy of the data */
 	if ((os.pdsk >= D_INCONSISTENT &&
@@ -1343,7 +1445,23 @@ static void after_state_ch(struct drbd_conf *mdev, union drbd_state os,
 
 		/* D_DISKLESS Peer becomes secondary */
 		if (os.peer == R_PRIMARY && ns.peer == R_SECONDARY)
-			drbd_al_to_on_disk_bm(mdev);
+			/* We may still be Primary ourselves.
+			 * No harm done if the bitmap still changes,
+			 * redirtied pages will follow later. */
+			drbd_bitmap_io_from_worker(mdev, &drbd_bm_write,
+				"demote diskless peer", BM_LOCKED_SET_ALLOWED);
+		put_ldev(mdev);
+	}
+
+	/* Write out all changed bits on demote.
+	 * Though, no need to da that just yet
+	 * if there is a resync going on still */
+	if (os.role == R_PRIMARY && ns.role == R_SECONDARY &&
+		mdev->state.conn <= C_CONNECTED && get_ldev(mdev)) {
+		/* No changes to the bitmap expected this time, so assert that,
+		 * even though no harm was done if it did change. */
+		drbd_bitmap_io_from_worker(mdev, &drbd_bm_write,
+				"demote", BM_LOCKED_TEST_ALLOWED);
 		put_ldev(mdev);
 	}
 
@@ -1371,15 +1489,23 @@ static void after_state_ch(struct drbd_conf *mdev, union drbd_state os,
 	if (os.conn == C_WF_REPORT_PARAMS && ns.conn >= C_CONNECTED)
 		drbd_send_state(mdev);
 
+	if (os.conn != C_AHEAD && ns.conn == C_AHEAD)
+		drbd_send_state(mdev);
+
 	/* We are in the progress to start a full sync... */
 	if ((os.conn != C_STARTING_SYNC_T && ns.conn == C_STARTING_SYNC_T) ||
 	    (os.conn != C_STARTING_SYNC_S && ns.conn == C_STARTING_SYNC_S))
-		drbd_queue_bitmap_io(mdev, &drbd_bmio_set_n_write, &abw_start_sync, "set_n_write from StartingSync");
+		/* no other bitmap changes expected during this phase */
+		drbd_queue_bitmap_io(mdev,
+			&drbd_bmio_set_n_write, &abw_start_sync,
+			"set_n_write from StartingSync", BM_LOCKED_TEST_ALLOWED);
 
 	/* We are invalidating our self... */
 	if (os.conn < C_CONNECTED && ns.conn < C_CONNECTED &&
 	    os.disk > D_INCONSISTENT && ns.disk == D_INCONSISTENT)
-		drbd_queue_bitmap_io(mdev, &drbd_bmio_set_n_write, NULL, "set_n_write from invalidate");
+		/* other bitmap operation expected during this phase */
+		drbd_queue_bitmap_io(mdev, &drbd_bmio_set_n_write, NULL,
+			"set_n_write from invalidate", BM_LOCKED_MASK);
 
 	/* first half of local IO error, failure to attach,
 	 * or administrative detach */
@@ -1434,10 +1560,8 @@ static void after_state_ch(struct drbd_conf *mdev, union drbd_state os,
 
 		if (drbd_send_state(mdev))
 			dev_warn(DEV, "Notified peer that I'm now diskless.\n");
-		else
-			dev_err(DEV, "Sending state for being diskless failed\n");
 		/* corresponding get_ldev in __drbd_set_state
-		 * this may finaly trigger drbd_ldev_destroy. */
+		 * this may finally trigger drbd_ldev_destroy. */
 		put_ldev(mdev);
 	}
 
@@ -1459,6 +1583,19 @@ static void after_state_ch(struct drbd_conf *mdev, union drbd_state os,
 	if (os.disk < D_UP_TO_DATE && os.conn >= C_SYNC_SOURCE && ns.conn == C_CONNECTED)
 		drbd_send_state(mdev);
 
+	/* This triggers bitmap writeout of potentially still unwritten pages
+	 * if the resync finished cleanly, or aborted because of peer disk
+	 * failure, or because of connection loss.
+	 * For resync aborted because of local disk failure, we cannot do
+	 * any bitmap writeout anymore.
+	 * No harm done if some bits change during this phase.
+	 */
+	if (os.conn > C_CONNECTED && ns.conn <= C_CONNECTED && get_ldev(mdev)) {
+		drbd_queue_bitmap_io(mdev, &drbd_bm_write, NULL,
+			"write from resync_finished", BM_LOCKED_SET_ALLOWED);
+		put_ldev(mdev);
+	}
+
 	/* free tl_hash if we Got thawed and are C_STANDALONE */
 	if (ns.conn == C_STANDALONE && !is_susp(ns) && mdev->tl_hash)
 		drbd_free_tl_hash(mdev);
@@ -1559,7 +1696,7 @@ int drbd_thread_start(struct drbd_thread *thi)
 		if (!try_module_get(THIS_MODULE)) {
 			dev_err(DEV, "Failed to get module reference in drbd_thread_start\n");
 			spin_unlock_irqrestore(&thi->t_lock, flags);
-			return FALSE;
+			return false;
 		}
 
 		init_completion(&thi->stop);
@@ -1576,7 +1713,7 @@ int drbd_thread_start(struct drbd_thread *thi)
 			dev_err(DEV, "Couldn't start thread\n");
 
 			module_put(THIS_MODULE);
-			return FALSE;
+			return false;
 		}
 		spin_lock_irqsave(&thi->t_lock, flags);
 		thi->task = nt;
@@ -1596,7 +1733,7 @@ int drbd_thread_start(struct drbd_thread *thi)
 		break;
 	}
 
-	return TRUE;
+	return true;
 }
 
 
@@ -1694,8 +1831,8 @@ int _drbd_send_cmd(struct drbd_conf *mdev, struct socket *sock,
 {
 	int sent, ok;
 
-	ERR_IF(!h) return FALSE;
-	ERR_IF(!size) return FALSE;
+	ERR_IF(!h) return false;
+	ERR_IF(!size) return false;
 
 	h->magic   = BE_DRBD_MAGIC;
 	h->command = cpu_to_be16(cmd);
@@ -1704,8 +1841,8 @@ int _drbd_send_cmd(struct drbd_conf *mdev, struct socket *sock,
 	sent = drbd_send(mdev, sock, h, size, msg_flags);
 
 	ok = (sent == size);
-	if (!ok)
-		dev_err(DEV, "short sent %s size=%d sent=%d\n",
+	if (!ok && !signal_pending(current))
+		dev_warn(DEV, "short sent %s size=%d sent=%d\n",
 		    cmdname(cmd), (int)size, sent);
 	return ok;
 }
@@ -1840,7 +1977,7 @@ int drbd_send_protocol(struct drbd_conf *mdev)
 		else {
 			dev_err(DEV, "--dry-run is not supported by peer");
 			kfree(p);
-			return 0;
+			return -1;
 		}
 	}
 	p->conn_flags    = cpu_to_be32(cf);
@@ -1888,12 +2025,36 @@ int drbd_send_uuids_skip_initial_sync(struct drbd_conf *mdev)
 	return _drbd_send_uuids(mdev, 8);
 }
 
+void drbd_print_uuids(struct drbd_conf *mdev, const char *text)
+{
+	if (get_ldev_if_state(mdev, D_NEGOTIATING)) {
+		u64 *uuid = mdev->ldev->md.uuid;
+		dev_info(DEV, "%s %016llX:%016llX:%016llX:%016llX\n",
+		     text,
+		     (unsigned long long)uuid[UI_CURRENT],
+		     (unsigned long long)uuid[UI_BITMAP],
+		     (unsigned long long)uuid[UI_HISTORY_START],
+		     (unsigned long long)uuid[UI_HISTORY_END]);
+		put_ldev(mdev);
+	} else {
+		dev_info(DEV, "%s effective data uuid: %016llX\n",
+				text,
+				(unsigned long long)mdev->ed_uuid);
+	}
+}
 
-int drbd_send_sync_uuid(struct drbd_conf *mdev, u64 val)
+int drbd_gen_and_send_sync_uuid(struct drbd_conf *mdev)
 {
 	struct p_rs_uuid p;
+	u64 uuid;
 
-	p.uuid = cpu_to_be64(val);
+	D_ASSERT(mdev->state.disk == D_UP_TO_DATE);
+
+	uuid = mdev->ldev->md.uuid[UI_BITMAP] + UUID_NEW_BM_OFFSET;
+	drbd_uuid_set(mdev, UI_BITMAP, uuid);
+	drbd_print_uuids(mdev, "updated sync UUID");
+	drbd_md_sync(mdev);
+	p.uuid = cpu_to_be64(uuid);
 
 	return drbd_send_cmd(mdev, USE_DATA_SOCKET, P_SYNC_UUID,
 			     (struct p_header80 *)&p, sizeof(p));
@@ -1921,7 +2082,7 @@ int drbd_send_sizes(struct drbd_conf *mdev, int trigger_reply, enum dds_flags fl
 	p.d_size = cpu_to_be64(d_size);
 	p.u_size = cpu_to_be64(u_size);
 	p.c_size = cpu_to_be64(trigger_reply ? 0 : drbd_get_capacity(mdev->this_bdev));
-	p.max_segment_size = cpu_to_be32(queue_max_segment_size(mdev->rq_queue));
+	p.max_bio_size = cpu_to_be32(queue_max_hw_sectors(mdev->rq_queue) << 9);
 	p.queue_order_type = cpu_to_be16(q_order_type);
 	p.dds_flags = cpu_to_be16(flags);
 
@@ -1972,7 +2133,7 @@ int drbd_send_state_req(struct drbd_conf *mdev,
 			     (struct p_header80 *)&p, sizeof(p));
 }
 
-int drbd_send_sr_reply(struct drbd_conf *mdev, int retcode)
+int drbd_send_sr_reply(struct drbd_conf *mdev, enum drbd_state_rv retcode)
 {
 	struct p_req_state_reply p;
 
@@ -2076,9 +2237,15 @@ int fill_bitmap_rle_bits(struct drbd_conf *mdev,
 	return len;
 }
 
-enum { OK, FAILED, DONE }
+/**
+ * send_bitmap_rle_or_plain
+ *
+ * Return 0 when done, 1 when another iteration is needed, and a negative error
+ * code upon failure.
+ */
+static int
 send_bitmap_rle_or_plain(struct drbd_conf *mdev,
-	struct p_header80 *h, struct bm_xfer_ctx *c)
+			 struct p_header80 *h, struct bm_xfer_ctx *c)
 {
 	struct p_compressed_bm *p = (void*)h;
 	unsigned long num_words;
@@ -2088,7 +2255,7 @@ send_bitmap_rle_or_plain(struct drbd_conf *mdev,
 	len = fill_bitmap_rle_bits(mdev, p, c);
 
 	if (len < 0)
-		return FAILED;
+		return -EIO;
 
 	if (len) {
 		DCBP_set_code(p, RLE_VLI_Bits);
@@ -2118,11 +2285,14 @@ send_bitmap_rle_or_plain(struct drbd_conf *mdev,
 		if (c->bit_offset > c->bm_bits)
 			c->bit_offset = c->bm_bits;
 	}
-	ok = ok ? ((len == 0) ? DONE : OK) : FAILED;
-
-	if (ok == DONE)
-		INFO_bm_xfer_stats(mdev, "send", c);
-	return ok;
+	if (ok) {
+		if (len == 0) {
+			INFO_bm_xfer_stats(mdev, "send", c);
+			return 0;
+		} else
+			return 1;
+	}
+	return -EIO;
 }
 
 /* See the comment at receive_bitmap() */
@@ -2130,16 +2300,16 @@ int _drbd_send_bitmap(struct drbd_conf *mdev)
 {
 	struct bm_xfer_ctx c;
 	struct p_header80 *p;
-	int ret;
+	int err;
 
-	ERR_IF(!mdev->bitmap) return FALSE;
+	ERR_IF(!mdev->bitmap) return false;
 
 	/* maybe we should use some per thread scratch page,
 	 * and allocate that during initial device creation? */
 	p = (struct p_header80 *) __get_free_page(GFP_NOIO);
 	if (!p) {
 		dev_err(DEV, "failed to allocate one page buffer in %s\n", __func__);
-		return FALSE;
+		return false;
 	}
 
 	if (get_ldev(mdev)) {
@@ -2165,11 +2335,11 @@ int _drbd_send_bitmap(struct drbd_conf *mdev)
 	};
 
 	do {
-		ret = send_bitmap_rle_or_plain(mdev, p, &c);
-	} while (ret == OK);
+		err = send_bitmap_rle_or_plain(mdev, p, &c);
+	} while (err > 0);
 
 	free_page((unsigned long) p);
-	return (ret == DONE);
+	return err == 0;
 }
 
 int drbd_send_bitmap(struct drbd_conf *mdev)
@@ -2192,7 +2362,7 @@ int drbd_send_b_ack(struct drbd_conf *mdev, u32 barrier_nr, u32 set_size)
 	p.set_size = cpu_to_be32(set_size);
 
 	if (mdev->state.conn < C_CONNECTED)
-		return FALSE;
+		return false;
 	ok = drbd_send_cmd(mdev, USE_META_SOCKET, P_BARRIER_ACK,
 			(struct p_header80 *)&p, sizeof(p));
 	return ok;
@@ -2220,7 +2390,7 @@ static int _drbd_send_ack(struct drbd_conf *mdev, enum drbd_packets cmd,
 	p.seq_num  = cpu_to_be32(atomic_add_return(1, &mdev->packet_seq));
 
 	if (!mdev->meta.socket || mdev->state.conn < C_CONNECTED)
-		return FALSE;
+		return false;
 	ok = drbd_send_cmd(mdev, USE_META_SOCKET, cmd,
 				(struct p_header80 *)&p, sizeof(p));
 	return ok;
@@ -2326,8 +2496,8 @@ int drbd_send_ov_request(struct drbd_conf *mdev, sector_t sector, int size)
 }
 
 /* called on sndtimeo
- * returns FALSE if we should retry,
- * TRUE if we think connection is dead
+ * returns false if we should retry,
+ * true if we think connection is dead
  */
 static int we_should_drop_the_connection(struct drbd_conf *mdev, struct socket *sock)
 {
@@ -2340,7 +2510,7 @@ static int we_should_drop_the_connection(struct drbd_conf *mdev, struct socket *
 		|| mdev->state.conn < C_CONNECTED;
 
 	if (drop_it)
-		return TRUE;
+		return true;
 
 	drop_it = !--mdev->ko_count;
 	if (!drop_it) {
@@ -2531,13 +2701,39 @@ int drbd_send_dblock(struct drbd_conf *mdev, struct drbd_request *req)
 	if (ok && dgs) {
 		dgb = mdev->int_dig_out;
 		drbd_csum_bio(mdev, mdev->integrity_w_tfm, req->master_bio, dgb);
-		ok = drbd_send(mdev, mdev->data.socket, dgb, dgs, 0);
+		ok = dgs == drbd_send(mdev, mdev->data.socket, dgb, dgs, 0);
 	}
 	if (ok) {
-		if (mdev->net_conf->wire_protocol == DRBD_PROT_A)
+		/* For protocol A, we have to memcpy the payload into
+		 * socket buffers, as we may complete right away
+		 * as soon as we handed it over to tcp, at which point the data
+		 * pages may become invalid.
+		 *
+		 * For data-integrity enabled, we copy it as well, so we can be
+		 * sure that even if the bio pages may still be modified, it
+		 * won't change the data on the wire, thus if the digest checks
+		 * out ok after sending on this side, but does not fit on the
+		 * receiving side, we sure have detected corruption elsewhere.
+		 */
+		if (mdev->net_conf->wire_protocol == DRBD_PROT_A || dgs)
 			ok = _drbd_send_bio(mdev, req->master_bio);
 		else
 			ok = _drbd_send_zc_bio(mdev, req->master_bio);
+
+		/* double check digest, sometimes buffers have been modified in flight. */
+		if (dgs > 0 && dgs <= 64) {
+			/* 64 byte, 512 bit, is the larges digest size
+			 * currently supported in kernel crypto. */
+			unsigned char digest[64];
+			drbd_csum_bio(mdev, mdev->integrity_w_tfm, req->master_bio, digest);
+			if (memcmp(mdev->int_dig_out, digest, dgs)) {
+				dev_warn(DEV,
+					"Digest mismatch, buffer modified by upper layers during write: %llus +%u\n",
+					(unsigned long long)req->sector, req->size);
+			}
+		} /* else if (dgs > 64) {
+		     ... Be noisy about digest too large ...
+		} */
 	}
 
 	drbd_put_data_sock(mdev);
@@ -2587,7 +2783,7 @@ int drbd_send_block(struct drbd_conf *mdev, enum drbd_packets cmd,
 	if (ok && dgs) {
 		dgb = mdev->int_dig_out;
 		drbd_csum_ee(mdev, mdev->integrity_w_tfm, e, dgb);
-		ok = drbd_send(mdev, mdev->data.socket, dgb, dgs, 0);
+		ok = dgs == drbd_send(mdev, mdev->data.socket, dgb, dgs, 0);
 	}
 	if (ok)
 		ok = _drbd_send_zc_ee(mdev, e);
@@ -2597,6 +2793,16 @@ int drbd_send_block(struct drbd_conf *mdev, enum drbd_packets cmd,
 	return ok;
 }
 
+int drbd_send_oos(struct drbd_conf *mdev, struct drbd_request *req)
+{
+	struct p_block_desc p;
+
+	p.sector  = cpu_to_be64(req->sector);
+	p.blksize = cpu_to_be32(req->size);
+
+	return drbd_send_cmd(mdev, USE_DATA_SOCKET, P_OUT_OF_SYNC, &p.head, sizeof(p));
+}
+
 /*
   drbd_send distinguishes two cases:
 
@@ -2770,6 +2976,7 @@ void drbd_init_set_defaults(struct drbd_conf *mdev)
 	atomic_set(&mdev->pp_in_use_by_net, 0);
 	atomic_set(&mdev->rs_sect_in, 0);
 	atomic_set(&mdev->rs_sect_ev, 0);
+	atomic_set(&mdev->ap_in_flight, 0);
 
 	mutex_init(&mdev->md_io_mutex);
 	mutex_init(&mdev->data.mutex);
@@ -2798,19 +3005,27 @@ void drbd_init_set_defaults(struct drbd_conf *mdev)
 	INIT_LIST_HEAD(&mdev->unplug_work.list);
 	INIT_LIST_HEAD(&mdev->go_diskless.list);
 	INIT_LIST_HEAD(&mdev->md_sync_work.list);
+	INIT_LIST_HEAD(&mdev->start_resync_work.list);
 	INIT_LIST_HEAD(&mdev->bm_io_work.w.list);
 
-	mdev->resync_work.cb  = w_resync_inactive;
+	mdev->resync_work.cb  = w_resync_timer;
 	mdev->unplug_work.cb  = w_send_write_hint;
 	mdev->go_diskless.cb  = w_go_diskless;
 	mdev->md_sync_work.cb = w_md_sync;
 	mdev->bm_io_work.w.cb = w_bitmap_io;
+	mdev->start_resync_work.cb = w_start_resync;
 	init_timer(&mdev->resync_timer);
 	init_timer(&mdev->md_sync_timer);
+	init_timer(&mdev->start_resync_timer);
+	init_timer(&mdev->request_timer);
 	mdev->resync_timer.function = resync_timer_fn;
 	mdev->resync_timer.data = (unsigned long) mdev;
 	mdev->md_sync_timer.function = md_sync_timer_fn;
 	mdev->md_sync_timer.data = (unsigned long) mdev;
+	mdev->start_resync_timer.function = start_resync_timer_fn;
+	mdev->start_resync_timer.data = (unsigned long) mdev;
+	mdev->request_timer.function = request_timer_fn;
+	mdev->request_timer.data = (unsigned long) mdev;
 
 	init_waitqueue_head(&mdev->misc_wait);
 	init_waitqueue_head(&mdev->state_wait);
@@ -2881,6 +3096,8 @@ void drbd_mdev_cleanup(struct drbd_conf *mdev)
 	D_ASSERT(list_empty(&mdev->resync_work.list));
 	D_ASSERT(list_empty(&mdev->unplug_work.list));
 	D_ASSERT(list_empty(&mdev->go_diskless.list));
+
+	drbd_set_defaults(mdev);
 }
 
 
@@ -2923,7 +3140,7 @@ static void drbd_destroy_mempools(void)
 static int drbd_create_mempools(void)
 {
 	struct page *page;
-	const int number = (DRBD_MAX_SEGMENT_SIZE/PAGE_SIZE) * minor_count;
+	const int number = (DRBD_MAX_BIO_SIZE/PAGE_SIZE) * minor_count;
 	int i;
 
 	/* prepare our caches and mempools */
@@ -3087,11 +3304,20 @@ static void drbd_cleanup(void)
 
 	unregister_reboot_notifier(&drbd_notifier);
 
+	/* first remove proc,
+	 * drbdsetup uses it's presence to detect
+	 * whether DRBD is loaded.
+	 * If we would get stuck in proc removal,
+	 * but have netlink already deregistered,
+	 * some drbdsetup commands may wait forever
+	 * for an answer.
+	 */
+	if (drbd_proc)
+		remove_proc_entry("drbd", NULL);
+
 	drbd_nl_cleanup();
 
 	if (minor_table) {
-		if (drbd_proc)
-			remove_proc_entry("drbd", NULL);
 		i = minor_count;
 		while (i--)
 			drbd_delete_device(i);
@@ -3119,7 +3345,7 @@ static int drbd_congested(void *congested_data, int bdi_bits)
 	char reason = '-';
 	int r = 0;
 
-	if (!__inc_ap_bio_cond(mdev)) {
+	if (!may_inc_ap_bio(mdev)) {
 		/* DRBD has frozen IO */
 		r = bdi_bits;
 		reason = 'd';
@@ -3172,7 +3398,7 @@ struct drbd_conf *drbd_new_device(unsigned int minor)
 		goto out_no_disk;
 	mdev->vdisk = disk;
 
-	set_disk_ro(disk, TRUE);
+	set_disk_ro(disk, true);
 
 	disk->queue = q;
 	disk->major = DRBD_MAJOR;
@@ -3188,8 +3414,8 @@ struct drbd_conf *drbd_new_device(unsigned int minor)
 	q->backing_dev_info.congested_fn = drbd_congested;
 	q->backing_dev_info.congested_data = mdev;
 
-	blk_queue_make_request(q, drbd_make_request_26);
-	blk_queue_max_segment_size(q, DRBD_MAX_SEGMENT_SIZE);
+	blk_queue_make_request(q, drbd_make_request);
+	blk_queue_max_hw_sectors(q, DRBD_MAX_BIO_SIZE >> 9);
 	blk_queue_bounce_limit(q, BLK_BOUNCE_ANY);
 	blk_queue_merge_bvec(q, drbd_merge_bvec);
 	q->queue_lock = &mdev->req_lock;
@@ -3251,6 +3477,7 @@ void drbd_free_mdev(struct drbd_conf *mdev)
 	put_disk(mdev->vdisk);
 	blk_cleanup_queue(mdev->rq_queue);
 	free_cpumask_var(mdev->cpu_mask);
+	drbd_free_tl_hash(mdev);
 	kfree(mdev);
 }
 
@@ -3266,7 +3493,7 @@ int __init drbd_init(void)
 		return -EINVAL;
 	}
 
-	if (1 > minor_count || minor_count > 255) {
+	if (minor_count < DRBD_MINOR_COUNT_MIN || minor_count > DRBD_MINOR_COUNT_MAX) {
 		printk(KERN_ERR
 			"drbd: invalid minor_count (%d)\n", minor_count);
 #ifdef MODULE
@@ -3448,7 +3675,7 @@ void drbd_md_sync(struct drbd_conf *mdev)
 	if (!drbd_md_sync_page_io(mdev, mdev->ldev, sector, WRITE)) {
 		/* this was a try anyways ... */
 		dev_err(DEV, "meta data update failed!\n");
-		drbd_chk_io_error(mdev, 1, TRUE);
+		drbd_chk_io_error(mdev, 1, true);
 	}
 
 	/* Update mdev->ldev->md.la_size_sect,
@@ -3464,7 +3691,7 @@ void drbd_md_sync(struct drbd_conf *mdev)
  * @mdev:	DRBD device.
  * @bdev:	Device from which the meta data should be read in.
  *
- * Return 0 (NO_ERROR) on success, and an enum drbd_ret_codes in case
+ * Return 0 (NO_ERROR) on success, and an enum drbd_ret_code in case
  * something goes wrong.  Currently only: ERR_IO_MD_DISK, ERR_MD_INVALID.
  */
 int drbd_md_read(struct drbd_conf *mdev, struct drbd_backing_dev *bdev)
@@ -3479,7 +3706,7 @@ int drbd_md_read(struct drbd_conf *mdev, struct drbd_backing_dev *bdev)
 	buffer = (struct meta_data_on_disk *)page_address(mdev->md_io_page);
 
 	if (!drbd_md_sync_page_io(mdev, bdev, bdev->md.md_offset, READ)) {
-		/* NOTE: cant do normal error processing here as this is
+		/* NOTE: can't do normal error processing here as this is
 		   called BEFORE disk is attached */
 		dev_err(DEV, "Error while reading metadata.\n");
 		rv = ERR_IO_MD_DISK;
@@ -3534,28 +3761,6 @@ int drbd_md_read(struct drbd_conf *mdev, struct drbd_backing_dev *bdev)
 	return rv;
 }
 
-static void debug_drbd_uuid(struct drbd_conf *mdev, enum drbd_uuid_index index)
-{
-	static char *uuid_str[UI_EXTENDED_SIZE] = {
-		[UI_CURRENT] = "CURRENT",
-		[UI_BITMAP] = "BITMAP",
-		[UI_HISTORY_START] = "HISTORY_START",
-		[UI_HISTORY_END] = "HISTORY_END",
-		[UI_SIZE] = "SIZE",
-		[UI_FLAGS] = "FLAGS",
-	};
-
-	if (index >= UI_EXTENDED_SIZE) {
-		dev_warn(DEV, " uuid_index >= EXTENDED_SIZE\n");
-		return;
-	}
-
-	dynamic_dev_dbg(DEV, " uuid[%s] now %016llX\n",
-		 uuid_str[index],
-		 (unsigned long long)mdev->ldev->md.uuid[index]);
-}
-
-
 /**
  * drbd_md_mark_dirty() - Mark meta data super block as dirty
  * @mdev:	DRBD device.
@@ -3585,10 +3790,8 @@ static void drbd_uuid_move_history(struct drbd_conf *mdev) __must_hold(local)
 {
 	int i;
 
-	for (i = UI_HISTORY_START; i < UI_HISTORY_END; i++) {
+	for (i = UI_HISTORY_START; i < UI_HISTORY_END; i++)
 		mdev->ldev->md.uuid[i+1] = mdev->ldev->md.uuid[i];
-		debug_drbd_uuid(mdev, i+1);
-	}
 }
 
 void _drbd_uuid_set(struct drbd_conf *mdev, int idx, u64 val) __must_hold(local)
@@ -3603,7 +3806,6 @@ void _drbd_uuid_set(struct drbd_conf *mdev, int idx, u64 val) __must_hold(local)
 	}
 
 	mdev->ldev->md.uuid[idx] = val;
-	debug_drbd_uuid(mdev, idx);
 	drbd_md_mark_dirty(mdev);
 }
 
@@ -3613,7 +3815,6 @@ void drbd_uuid_set(struct drbd_conf *mdev, int idx, u64 val) __must_hold(local)
 	if (mdev->ldev->md.uuid[idx]) {
 		drbd_uuid_move_history(mdev);
 		mdev->ldev->md.uuid[UI_HISTORY_START] = mdev->ldev->md.uuid[idx];
-		debug_drbd_uuid(mdev, UI_HISTORY_START);
 	}
 	_drbd_uuid_set(mdev, idx, val);
 }
@@ -3628,14 +3829,16 @@ void drbd_uuid_set(struct drbd_conf *mdev, int idx, u64 val) __must_hold(local)
 void drbd_uuid_new_current(struct drbd_conf *mdev) __must_hold(local)
 {
 	u64 val;
+	unsigned long long bm_uuid = mdev->ldev->md.uuid[UI_BITMAP];
+
+	if (bm_uuid)
+		dev_warn(DEV, "bm UUID was already set: %llX\n", bm_uuid);
 
-	dev_info(DEV, "Creating new current UUID\n");
-	D_ASSERT(mdev->ldev->md.uuid[UI_BITMAP] == 0);
 	mdev->ldev->md.uuid[UI_BITMAP] = mdev->ldev->md.uuid[UI_CURRENT];
-	debug_drbd_uuid(mdev, UI_BITMAP);
 
 	get_random_bytes(&val, sizeof(u64));
 	_drbd_uuid_set(mdev, UI_CURRENT, val);
+	drbd_print_uuids(mdev, "new current UUID");
 	/* get it to stable storage _now_ */
 	drbd_md_sync(mdev);
 }
@@ -3649,16 +3852,12 @@ void drbd_uuid_set_bm(struct drbd_conf *mdev, u64 val) __must_hold(local)
 		drbd_uuid_move_history(mdev);
 		mdev->ldev->md.uuid[UI_HISTORY_START] = mdev->ldev->md.uuid[UI_BITMAP];
 		mdev->ldev->md.uuid[UI_BITMAP] = 0;
-		debug_drbd_uuid(mdev, UI_HISTORY_START);
-		debug_drbd_uuid(mdev, UI_BITMAP);
 	} else {
-		if (mdev->ldev->md.uuid[UI_BITMAP])
-			dev_warn(DEV, "bm UUID already set");
-
-		mdev->ldev->md.uuid[UI_BITMAP] = val;
-		mdev->ldev->md.uuid[UI_BITMAP] &= ~((u64)1);
+		unsigned long long bm_uuid = mdev->ldev->md.uuid[UI_BITMAP];
+		if (bm_uuid)
+			dev_warn(DEV, "bm UUID was already set: %llX\n", bm_uuid);
 
-		debug_drbd_uuid(mdev, UI_BITMAP);
+		mdev->ldev->md.uuid[UI_BITMAP] = val & ~((u64)1);
 	}
 	drbd_md_mark_dirty(mdev);
 }
@@ -3714,15 +3913,19 @@ int drbd_bmio_clear_n_write(struct drbd_conf *mdev)
 static int w_bitmap_io(struct drbd_conf *mdev, struct drbd_work *w, int unused)
 {
 	struct bm_io_work *work = container_of(w, struct bm_io_work, w);
-	int rv;
+	int rv = -EIO;
 
 	D_ASSERT(atomic_read(&mdev->ap_bio_cnt) == 0);
 
-	drbd_bm_lock(mdev, work->why);
-	rv = work->io_fn(mdev);
-	drbd_bm_unlock(mdev);
+	if (get_ldev(mdev)) {
+		drbd_bm_lock(mdev, work->why, work->flags);
+		rv = work->io_fn(mdev);
+		drbd_bm_unlock(mdev);
+		put_ldev(mdev);
+	}
 
 	clear_bit(BITMAP_IO, &mdev->flags);
+	smp_mb__after_clear_bit();
 	wake_up(&mdev->misc_wait);
 
 	if (work->done)
@@ -3730,6 +3933,7 @@ static int w_bitmap_io(struct drbd_conf *mdev, struct drbd_work *w, int unused)
 
 	clear_bit(BITMAP_IO_QUEUED, &mdev->flags);
 	work->why = NULL;
+	work->flags = 0;
 
 	return 1;
 }
@@ -3784,7 +3988,7 @@ void drbd_go_diskless(struct drbd_conf *mdev)
 void drbd_queue_bitmap_io(struct drbd_conf *mdev,
 			  int (*io_fn)(struct drbd_conf *),
 			  void (*done)(struct drbd_conf *, int),
-			  char *why)
+			  char *why, enum bm_flag flags)
 {
 	D_ASSERT(current == mdev->worker.task);
 
@@ -3798,15 +4002,15 @@ void drbd_queue_bitmap_io(struct drbd_conf *mdev,
 	mdev->bm_io_work.io_fn = io_fn;
 	mdev->bm_io_work.done = done;
 	mdev->bm_io_work.why = why;
+	mdev->bm_io_work.flags = flags;
 
+	spin_lock_irq(&mdev->req_lock);
 	set_bit(BITMAP_IO, &mdev->flags);
 	if (atomic_read(&mdev->ap_bio_cnt) == 0) {
-		if (list_empty(&mdev->bm_io_work.w.list)) {
-			set_bit(BITMAP_IO_QUEUED, &mdev->flags);
+		if (!test_and_set_bit(BITMAP_IO_QUEUED, &mdev->flags))
 			drbd_queue_work(&mdev->data.work, &mdev->bm_io_work.w);
-		} else
-			dev_err(DEV, "FIXME avoided double queuing bm_io_work\n");
 	}
+	spin_unlock_irq(&mdev->req_lock);
 }
 
 /**
@@ -3818,19 +4022,22 @@ void drbd_queue_bitmap_io(struct drbd_conf *mdev,
  * freezes application IO while that the actual IO operations runs. This
  * functions MAY NOT be called from worker context.
  */
-int drbd_bitmap_io(struct drbd_conf *mdev, int (*io_fn)(struct drbd_conf *), char *why)
+int drbd_bitmap_io(struct drbd_conf *mdev, int (*io_fn)(struct drbd_conf *),
+		char *why, enum bm_flag flags)
 {
 	int rv;
 
 	D_ASSERT(current != mdev->worker.task);
 
-	drbd_suspend_io(mdev);
+	if ((flags & BM_LOCKED_SET_ALLOWED) == 0)
+		drbd_suspend_io(mdev);
 
-	drbd_bm_lock(mdev, why);
+	drbd_bm_lock(mdev, why, flags);
 	rv = io_fn(mdev);
 	drbd_bm_unlock(mdev);
 
-	drbd_resume_io(mdev);
+	if ((flags & BM_LOCKED_SET_ALLOWED) == 0)
+		drbd_resume_io(mdev);
 
 	return rv;
 }
diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c
index fe81c851ca88..03b29f78a37d 100644
--- a/drivers/block/drbd/drbd_nl.c
+++ b/drivers/block/drbd/drbd_nl.c
@@ -288,10 +288,11 @@ void drbd_try_outdate_peer_async(struct drbd_conf *mdev)
 		dev_err(DEV, "out of mem, failed to invoke fence-peer helper\n");
 }
 
-int drbd_set_role(struct drbd_conf *mdev, enum drbd_role new_role, int force)
+enum drbd_state_rv
+drbd_set_role(struct drbd_conf *mdev, enum drbd_role new_role, int force)
 {
 	const int max_tries = 4;
-	int r = 0;
+	enum drbd_state_rv rv = SS_UNKNOWN_ERROR;
 	int try = 0;
 	int forced = 0;
 	union drbd_state mask, val;
@@ -306,17 +307,17 @@ int drbd_set_role(struct drbd_conf *mdev, enum drbd_role new_role, int force)
 	val.i  = 0; val.role  = new_role;
 
 	while (try++ < max_tries) {
-		r = _drbd_request_state(mdev, mask, val, CS_WAIT_COMPLETE);
+		rv = _drbd_request_state(mdev, mask, val, CS_WAIT_COMPLETE);
 
 		/* in case we first succeeded to outdate,
 		 * but now suddenly could establish a connection */
-		if (r == SS_CW_FAILED_BY_PEER && mask.pdsk != 0) {
+		if (rv == SS_CW_FAILED_BY_PEER && mask.pdsk != 0) {
 			val.pdsk = 0;
 			mask.pdsk = 0;
 			continue;
 		}
 
-		if (r == SS_NO_UP_TO_DATE_DISK && force &&
+		if (rv == SS_NO_UP_TO_DATE_DISK && force &&
 		    (mdev->state.disk < D_UP_TO_DATE &&
 		     mdev->state.disk >= D_INCONSISTENT)) {
 			mask.disk = D_MASK;
@@ -325,7 +326,7 @@ int drbd_set_role(struct drbd_conf *mdev, enum drbd_role new_role, int force)
 			continue;
 		}
 
-		if (r == SS_NO_UP_TO_DATE_DISK &&
+		if (rv == SS_NO_UP_TO_DATE_DISK &&
 		    mdev->state.disk == D_CONSISTENT && mask.pdsk == 0) {
 			D_ASSERT(mdev->state.pdsk == D_UNKNOWN);
 			nps = drbd_try_outdate_peer(mdev);
@@ -341,9 +342,9 @@ int drbd_set_role(struct drbd_conf *mdev, enum drbd_role new_role, int force)
 			continue;
 		}
 
-		if (r == SS_NOTHING_TO_DO)
+		if (rv == SS_NOTHING_TO_DO)
 			goto fail;
-		if (r == SS_PRIMARY_NOP && mask.pdsk == 0) {
+		if (rv == SS_PRIMARY_NOP && mask.pdsk == 0) {
 			nps = drbd_try_outdate_peer(mdev);
 
 			if (force && nps > D_OUTDATED) {
@@ -356,25 +357,24 @@ int drbd_set_role(struct drbd_conf *mdev, enum drbd_role new_role, int force)
 
 			continue;
 		}
-		if (r == SS_TWO_PRIMARIES) {
+		if (rv == SS_TWO_PRIMARIES) {
 			/* Maybe the peer is detected as dead very soon...
 			   retry at most once more in this case. */
-			__set_current_state(TASK_INTERRUPTIBLE);
-			schedule_timeout((mdev->net_conf->ping_timeo+1)*HZ/10);
+			schedule_timeout_interruptible((mdev->net_conf->ping_timeo+1)*HZ/10);
 			if (try < max_tries)
 				try = max_tries - 1;
 			continue;
 		}
-		if (r < SS_SUCCESS) {
-			r = _drbd_request_state(mdev, mask, val,
+		if (rv < SS_SUCCESS) {
+			rv = _drbd_request_state(mdev, mask, val,
 						CS_VERBOSE + CS_WAIT_COMPLETE);
-			if (r < SS_SUCCESS)
+			if (rv < SS_SUCCESS)
 				goto fail;
 		}
 		break;
 	}
 
-	if (r < SS_SUCCESS)
+	if (rv < SS_SUCCESS)
 		goto fail;
 
 	if (forced)
@@ -384,7 +384,7 @@ int drbd_set_role(struct drbd_conf *mdev, enum drbd_role new_role, int force)
 	wait_event(mdev->misc_wait, atomic_read(&mdev->ap_pending_cnt) == 0);
 
 	if (new_role == R_SECONDARY) {
-		set_disk_ro(mdev->vdisk, TRUE);
+		set_disk_ro(mdev->vdisk, true);
 		if (get_ldev(mdev)) {
 			mdev->ldev->md.uuid[UI_CURRENT] &= ~(u64)1;
 			put_ldev(mdev);
@@ -394,7 +394,7 @@ int drbd_set_role(struct drbd_conf *mdev, enum drbd_role new_role, int force)
 			mdev->net_conf->want_lose = 0;
 			put_net_conf(mdev);
 		}
-		set_disk_ro(mdev->vdisk, FALSE);
+		set_disk_ro(mdev->vdisk, false);
 		if (get_ldev(mdev)) {
 			if (((mdev->state.conn < C_CONNECTED ||
 			       mdev->state.pdsk <= D_FAILED)
@@ -406,10 +406,8 @@ int drbd_set_role(struct drbd_conf *mdev, enum drbd_role new_role, int force)
 		}
 	}
 
-	if ((new_role == R_SECONDARY) && get_ldev(mdev)) {
-		drbd_al_to_on_disk_bm(mdev);
-		put_ldev(mdev);
-	}
+	/* writeout of activity log covered areas of the bitmap
+	 * to stable storage done in after state change already */
 
 	if (mdev->state.conn >= C_WF_REPORT_PARAMS) {
 		/* if this was forced, we should consider sync */
@@ -423,7 +421,7 @@ int drbd_set_role(struct drbd_conf *mdev, enum drbd_role new_role, int force)
 	kobject_uevent(&disk_to_dev(mdev->vdisk)->kobj, KOBJ_CHANGE);
  fail:
 	mutex_unlock(&mdev->state_mutex);
-	return r;
+	return rv;
 }
 
 static struct drbd_conf *ensure_mdev(int minor, int create)
@@ -528,17 +526,19 @@ static void drbd_md_set_sector_offsets(struct drbd_conf *mdev,
 	}
 }
 
+/* input size is expected to be in KB */
 char *ppsize(char *buf, unsigned long long size)
 {
-	/* Needs 9 bytes at max. */
+	/* Needs 9 bytes at max including trailing NUL:
+	 * -1ULL ==> "16384 EB" */
 	static char units[] = { 'K', 'M', 'G', 'T', 'P', 'E' };
 	int base = 0;
-	while (size >= 10000) {
+	while (size >= 10000 && base < sizeof(units)-1) {
 		/* shift + round */
 		size = (size >> 10) + !!(size & (1<<9));
 		base++;
 	}
-	sprintf(buf, "%lu %cB", (long)size, units[base]);
+	sprintf(buf, "%u %cB", (unsigned)size, units[base]);
 
 	return buf;
 }
@@ -642,11 +642,19 @@ enum determine_dev_size drbd_determin_dev_size(struct drbd_conf *mdev, enum dds_
 		|| prev_size	   != mdev->ldev->md.md_size_sect;
 
 	if (la_size_changed || md_moved) {
+		int err;
+
 		drbd_al_shrink(mdev); /* All extents inactive. */
 		dev_info(DEV, "Writing the whole bitmap, %s\n",
 			 la_size_changed && md_moved ? "size changed and md moved" :
 			 la_size_changed ? "size changed" : "md moved");
-		rv = drbd_bitmap_io(mdev, &drbd_bm_write, "size changed"); /* does drbd_resume_io() ! */
+		/* next line implicitly does drbd_suspend_io()+drbd_resume_io() */
+		err = drbd_bitmap_io(mdev, &drbd_bm_write,
+				"size changed", BM_LOCKED_MASK);
+		if (err) {
+			rv = dev_size_error;
+			goto out;
+		}
 		drbd_md_mark_dirty(mdev);
 	}
 
@@ -765,22 +773,21 @@ static int drbd_check_al_size(struct drbd_conf *mdev)
 	return 0;
 }
 
-void drbd_setup_queue_param(struct drbd_conf *mdev, unsigned int max_seg_s) __must_hold(local)
+void drbd_setup_queue_param(struct drbd_conf *mdev, unsigned int max_bio_size) __must_hold(local)
 {
 	struct request_queue * const q = mdev->rq_queue;
 	struct request_queue * const b = mdev->ldev->backing_bdev->bd_disk->queue;
 	int max_segments = mdev->ldev->dc.max_bio_bvecs;
+	int max_hw_sectors = min(queue_max_hw_sectors(b), max_bio_size >> 9);
 
-	max_seg_s = min(queue_max_sectors(b) * queue_logical_block_size(b), max_seg_s);
-
-	blk_queue_max_hw_sectors(q, max_seg_s >> 9);
-	blk_queue_max_segments(q, max_segments ? max_segments : BLK_MAX_SEGMENTS);
-	blk_queue_max_segment_size(q, max_seg_s);
 	blk_queue_logical_block_size(q, 512);
-	blk_queue_segment_boundary(q, PAGE_SIZE-1);
-	blk_stack_limits(&q->limits, &b->limits, 0);
+	blk_queue_max_hw_sectors(q, max_hw_sectors);
+	/* This is the workaround for "bio would need to, but cannot, be split" */
+	blk_queue_max_segments(q, max_segments ? max_segments : BLK_MAX_SEGMENTS);
+	blk_queue_segment_boundary(q, PAGE_CACHE_SIZE-1);
+	blk_queue_stack_limits(q, b);
 
-	dev_info(DEV, "max_segment_size ( = BIO size ) = %u\n", queue_max_segment_size(q));
+	dev_info(DEV, "max BIO size = %u\n", queue_max_hw_sectors(q) << 9);
 
 	if (q->backing_dev_info.ra_pages != b->backing_dev_info.ra_pages) {
 		dev_info(DEV, "Adjusting my ra_pages to backing device's (%lu -> %lu)\n",
@@ -850,7 +857,7 @@ static void drbd_suspend_al(struct drbd_conf *mdev)
 static int drbd_nl_disk_conf(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp,
 			     struct drbd_nl_cfg_reply *reply)
 {
-	enum drbd_ret_codes retcode;
+	enum drbd_ret_code retcode;
 	enum determine_dev_size dd;
 	sector_t max_possible_sectors;
 	sector_t min_md_device_sectors;
@@ -858,8 +865,8 @@ static int drbd_nl_disk_conf(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp
 	struct block_device *bdev;
 	struct lru_cache *resync_lru = NULL;
 	union drbd_state ns, os;
-	unsigned int max_seg_s;
-	int rv;
+	unsigned int max_bio_size;
+	enum drbd_state_rv rv;
 	int cp_discovered = 0;
 	int logical_block_size;
 
@@ -1005,9 +1012,10 @@ static int drbd_nl_disk_conf(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp
 	/* and for any other previously queued work */
 	drbd_flush_workqueue(mdev);
 
-	retcode = _drbd_request_state(mdev, NS(disk, D_ATTACHING), CS_VERBOSE);
+	rv = _drbd_request_state(mdev, NS(disk, D_ATTACHING), CS_VERBOSE);
+	retcode = rv;  /* FIXME: Type mismatch. */
 	drbd_resume_io(mdev);
-	if (retcode < SS_SUCCESS)
+	if (rv < SS_SUCCESS)
 		goto fail;
 
 	if (!get_ldev_if_state(mdev, D_ATTACHING))
@@ -1109,20 +1117,20 @@ static int drbd_nl_disk_conf(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp
 	mdev->read_cnt = 0;
 	mdev->writ_cnt = 0;
 
-	max_seg_s = DRBD_MAX_SEGMENT_SIZE;
+	max_bio_size = DRBD_MAX_BIO_SIZE;
 	if (mdev->state.conn == C_CONNECTED) {
 		/* We are Primary, Connected, and now attach a new local
 		 * backing store. We must not increase the user visible maximum
 		 * bio size on this device to something the peer may not be
 		 * able to handle. */
 		if (mdev->agreed_pro_version < 94)
-			max_seg_s = queue_max_segment_size(mdev->rq_queue);
+			max_bio_size = queue_max_hw_sectors(mdev->rq_queue) << 9;
 		else if (mdev->agreed_pro_version == 94)
-			max_seg_s = DRBD_MAX_SIZE_H80_PACKET;
+			max_bio_size = DRBD_MAX_SIZE_H80_PACKET;
 		/* else: drbd 8.3.9 and later, stay with default */
 	}
 
-	drbd_setup_queue_param(mdev, max_seg_s);
+	drbd_setup_queue_param(mdev, max_bio_size);
 
 	/* If I am currently not R_PRIMARY,
 	 * but meta data primary indicator is set,
@@ -1154,12 +1162,14 @@ static int drbd_nl_disk_conf(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp
 	if (drbd_md_test_flag(mdev->ldev, MDF_FULL_SYNC)) {
 		dev_info(DEV, "Assuming that all blocks are out of sync "
 		     "(aka FullSync)\n");
-		if (drbd_bitmap_io(mdev, &drbd_bmio_set_n_write, "set_n_write from attaching")) {
+		if (drbd_bitmap_io(mdev, &drbd_bmio_set_n_write,
+			"set_n_write from attaching", BM_LOCKED_MASK)) {
 			retcode = ERR_IO_MD_DISK;
 			goto force_diskless_dec;
 		}
 	} else {
-		if (drbd_bitmap_io(mdev, &drbd_bm_read, "read from attaching") < 0) {
+		if (drbd_bitmap_io(mdev, &drbd_bm_read,
+			"read from attaching", BM_LOCKED_MASK) < 0) {
 			retcode = ERR_IO_MD_DISK;
 			goto force_diskless_dec;
 		}
@@ -1167,7 +1177,11 @@ static int drbd_nl_disk_conf(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp
 
 	if (cp_discovered) {
 		drbd_al_apply_to_bm(mdev);
-		drbd_al_to_on_disk_bm(mdev);
+		if (drbd_bitmap_io(mdev, &drbd_bm_write,
+			"crashed primary apply AL", BM_LOCKED_MASK)) {
+			retcode = ERR_IO_MD_DISK;
+			goto force_diskless_dec;
+		}
 	}
 
 	if (_drbd_bm_total_weight(mdev) == drbd_bm_bits(mdev))
@@ -1279,7 +1293,7 @@ static int drbd_nl_net_conf(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp,
 			    struct drbd_nl_cfg_reply *reply)
 {
 	int i, ns;
-	enum drbd_ret_codes retcode;
+	enum drbd_ret_code retcode;
 	struct net_conf *new_conf = NULL;
 	struct crypto_hash *tfm = NULL;
 	struct crypto_hash *integrity_w_tfm = NULL;
@@ -1324,6 +1338,8 @@ static int drbd_nl_net_conf(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp,
 	new_conf->wire_protocol    = DRBD_PROT_C;
 	new_conf->ping_timeo	   = DRBD_PING_TIMEO_DEF;
 	new_conf->rr_conflict	   = DRBD_RR_CONFLICT_DEF;
+	new_conf->on_congestion    = DRBD_ON_CONGESTION_DEF;
+	new_conf->cong_extents     = DRBD_CONG_EXTENTS_DEF;
 
 	if (!net_conf_from_tags(mdev, nlp->tag_list, new_conf)) {
 		retcode = ERR_MANDATORY_TAG;
@@ -1345,6 +1361,11 @@ static int drbd_nl_net_conf(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp,
 		}
 	}
 
+	if (new_conf->on_congestion != OC_BLOCK && new_conf->wire_protocol != DRBD_PROT_A) {
+		retcode = ERR_CONG_NOT_PROTO_A;
+		goto fail;
+	}
+
 	if (mdev->state.role == R_PRIMARY && new_conf->want_lose) {
 		retcode = ERR_DISCARD;
 		goto fail;
@@ -1525,6 +1546,21 @@ static int drbd_nl_disconnect(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nl
 			      struct drbd_nl_cfg_reply *reply)
 {
 	int retcode;
+	struct disconnect dc;
+
+	memset(&dc, 0, sizeof(struct disconnect));
+	if (!disconnect_from_tags(mdev, nlp->tag_list, &dc)) {
+		retcode = ERR_MANDATORY_TAG;
+		goto fail;
+	}
+
+	if (dc.force) {
+		spin_lock_irq(&mdev->req_lock);
+		if (mdev->state.conn >= C_WF_CONNECTION)
+			_drbd_set_state(_NS(mdev, conn, C_DISCONNECTING), CS_HARD, NULL);
+		spin_unlock_irq(&mdev->req_lock);
+		goto done;
+	}
 
 	retcode = _drbd_request_state(mdev, NS(conn, C_DISCONNECTING), CS_ORDERED);
 
@@ -1842,6 +1878,10 @@ static int drbd_nl_invalidate(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nl
 {
 	int retcode;
 
+	/* If there is still bitmap IO pending, probably because of a previous
+	 * resync just being finished, wait for it before requesting a new resync. */
+	wait_event(mdev->misc_wait, !test_bit(BITMAP_IO, &mdev->flags));
+
 	retcode = _drbd_request_state(mdev, NS(conn, C_STARTING_SYNC_T), CS_ORDERED);
 
 	if (retcode < SS_SUCCESS && retcode != SS_NEED_CONNECTION)
@@ -1877,6 +1917,10 @@ static int drbd_nl_invalidate_peer(struct drbd_conf *mdev, struct drbd_nl_cfg_re
 {
 	int retcode;
 
+	/* If there is still bitmap IO pending, probably because of a previous
+	 * resync just being finished, wait for it before requesting a new resync. */
+	wait_event(mdev->misc_wait, !test_bit(BITMAP_IO, &mdev->flags));
+
 	retcode = _drbd_request_state(mdev, NS(conn, C_STARTING_SYNC_S), CS_ORDERED);
 
 	if (retcode < SS_SUCCESS) {
@@ -1885,9 +1929,9 @@ static int drbd_nl_invalidate_peer(struct drbd_conf *mdev, struct drbd_nl_cfg_re
 			   into a full resync. */
 			retcode = drbd_request_state(mdev, NS(pdsk, D_INCONSISTENT));
 			if (retcode >= SS_SUCCESS) {
-				/* open coded drbd_bitmap_io() */
 				if (drbd_bitmap_io(mdev, &drbd_bmio_set_susp_al,
-						   "set_n_write from invalidate_peer"))
+					"set_n_write from invalidate_peer",
+					BM_LOCKED_SET_ALLOWED))
 					retcode = ERR_IO_MD_DISK;
 			}
 		} else
@@ -1914,9 +1958,17 @@ static int drbd_nl_resume_sync(struct drbd_conf *mdev, struct drbd_nl_cfg_req *n
 			       struct drbd_nl_cfg_reply *reply)
 {
 	int retcode = NO_ERROR;
+	union drbd_state s;
 
-	if (drbd_request_state(mdev, NS(user_isp, 0)) == SS_NOTHING_TO_DO)
-		retcode = ERR_PAUSE_IS_CLEAR;
+	if (drbd_request_state(mdev, NS(user_isp, 0)) == SS_NOTHING_TO_DO) {
+		s = mdev->state;
+		if (s.conn == C_PAUSED_SYNC_S || s.conn == C_PAUSED_SYNC_T) {
+			retcode = s.aftr_isp ? ERR_PIC_AFTER_DEP :
+				  s.peer_isp ? ERR_PIC_PEER_DEP : ERR_PAUSE_IS_CLEAR;
+		} else {
+			retcode = ERR_PAUSE_IS_CLEAR;
+		}
+	}
 
 	reply->ret_code = retcode;
 	return 0;
@@ -2054,6 +2106,11 @@ static int drbd_nl_start_ov(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp,
 		reply->ret_code = ERR_MANDATORY_TAG;
 		return 0;
 	}
+
+	/* If there is still bitmap IO pending, e.g. previous resync or verify
+	 * just being finished, wait for it before requesting a new resync. */
+	wait_event(mdev->misc_wait, !test_bit(BITMAP_IO, &mdev->flags));
+
 	/* w_make_ov_request expects position to be aligned */
 	mdev->ov_start_sector = args.start_sector & ~BM_SECT_PER_BIT;
 	reply->ret_code = drbd_request_state(mdev,NS(conn,C_VERIFY_S));
@@ -2097,7 +2154,8 @@ static int drbd_nl_new_c_uuid(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nl
 	drbd_uuid_new_current(mdev); /* New current, previous to UI_BITMAP */
 
 	if (args.clear_bm) {
-		err = drbd_bitmap_io(mdev, &drbd_bmio_clear_n_write, "clear_n_write from new_c_uuid");
+		err = drbd_bitmap_io(mdev, &drbd_bmio_clear_n_write,
+			"clear_n_write from new_c_uuid", BM_LOCKED_MASK);
 		if (err) {
 			dev_err(DEV, "Writing bitmap failed with %d\n",err);
 			retcode = ERR_IO_MD_DISK;
@@ -2105,6 +2163,7 @@ static int drbd_nl_new_c_uuid(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nl
 		if (skip_initial_sync) {
 			drbd_send_uuids_skip_initial_sync(mdev);
 			_drbd_uuid_set(mdev, UI_BITMAP, 0);
+			drbd_print_uuids(mdev, "cleared bitmap UUID");
 			spin_lock_irq(&mdev->req_lock);
 			_drbd_set_state(_NS2(mdev, disk, D_UP_TO_DATE, pdsk, D_UP_TO_DATE),
 					CS_VERBOSE, NULL);
@@ -2189,7 +2248,8 @@ static void drbd_connector_callback(struct cn_msg *req, struct netlink_skb_parms
 		goto fail;
 	}
 
-	if (nlp->packet_type >= P_nl_after_last_packet) {
+	if (nlp->packet_type >= P_nl_after_last_packet ||
+	    nlp->packet_type == P_return_code_only) {
 		retcode = ERR_PACKET_NR;
 		goto fail;
 	}
@@ -2205,7 +2265,7 @@ static void drbd_connector_callback(struct cn_msg *req, struct netlink_skb_parms
 	reply_size += cm->reply_body_size;
 
 	/* allocation not in the IO path, cqueue thread context */
-	cn_reply = kmalloc(reply_size, GFP_KERNEL);
+	cn_reply = kzalloc(reply_size, GFP_KERNEL);
 	if (!cn_reply) {
 		retcode = ERR_NOMEM;
 		goto fail;
@@ -2213,7 +2273,7 @@ static void drbd_connector_callback(struct cn_msg *req, struct netlink_skb_parms
 	reply = (struct drbd_nl_cfg_reply *) cn_reply->data;
 
 	reply->packet_type =
-		cm->reply_body_size ? nlp->packet_type : P_nl_after_last_packet;
+		cm->reply_body_size ? nlp->packet_type : P_return_code_only;
 	reply->minor = nlp->drbd_minor;
 	reply->ret_code = NO_ERROR; /* Might by modified by cm->function. */
 	/* reply->tag_list; might be modified by cm->function. */
@@ -2376,7 +2436,7 @@ void drbd_bcast_ee(struct drbd_conf *mdev,
 	/* receiver thread context, which is not in the writeout path (of this node),
 	 * but may be in the writeout path of the _other_ node.
 	 * GFP_NOIO to avoid potential "distributed deadlock". */
-	cn_reply = kmalloc(
+	cn_reply = kzalloc(
 		sizeof(struct cn_msg)+
 		sizeof(struct drbd_nl_cfg_reply)+
 		sizeof(struct dump_ee_tag_len_struct)+
@@ -2398,10 +2458,11 @@ void drbd_bcast_ee(struct drbd_conf *mdev,
 	tl = tl_add_int(tl, T_ee_sector, &e->sector);
 	tl = tl_add_int(tl, T_ee_block_id, &e->block_id);
 
+	/* dump the first 32k */
+	len = min_t(unsigned, e->size, 32 << 10);
 	put_unaligned(T_ee_data, tl++);
-	put_unaligned(e->size, tl++);
+	put_unaligned(len, tl++);
 
-	len = e->size;
 	page = e->pages;
 	page_chain_for_each(page) {
 		void *d = kmap_atomic(page, KM_USER0);
@@ -2410,6 +2471,8 @@ void drbd_bcast_ee(struct drbd_conf *mdev,
 		kunmap_atomic(d, KM_USER0);
 		tl = (unsigned short*)((char*)tl + l);
 		len -= l;
+		if (len == 0)
+			break;
 	}
 	put_unaligned(TT_END, tl++); /* Close the tag list */
 
@@ -2508,6 +2571,7 @@ void drbd_nl_send_reply(struct cn_msg *req, int ret_code)
 		(struct drbd_nl_cfg_reply *)cn_reply->data;
 	int rr;
 
+	memset(buffer, 0, sizeof(buffer));
 	cn_reply->id = req->id;
 
 	cn_reply->seq = req->seq;
@@ -2515,6 +2579,7 @@ void drbd_nl_send_reply(struct cn_msg *req, int ret_code)
 	cn_reply->len = sizeof(struct drbd_nl_cfg_reply);
 	cn_reply->flags = 0;
 
+	reply->packet_type = P_return_code_only;
 	reply->minor = ((struct drbd_nl_cfg_req *)req->data)->drbd_minor;
 	reply->ret_code = ret_code;
 
diff --git a/drivers/block/drbd/drbd_proc.c b/drivers/block/drbd/drbd_proc.c
index 7e6ac307e2de..2959cdfb77f5 100644
--- a/drivers/block/drbd/drbd_proc.c
+++ b/drivers/block/drbd/drbd_proc.c
@@ -34,6 +34,7 @@
 #include "drbd_int.h"
 
 static int drbd_proc_open(struct inode *inode, struct file *file);
+static int drbd_proc_release(struct inode *inode, struct file *file);
 
 
 struct proc_dir_entry *drbd_proc;
@@ -42,9 +43,22 @@ const struct file_operations drbd_proc_fops = {
 	.open		= drbd_proc_open,
 	.read		= seq_read,
 	.llseek		= seq_lseek,
-	.release	= single_release,
+	.release	= drbd_proc_release,
 };
 
+void seq_printf_with_thousands_grouping(struct seq_file *seq, long v)
+{
+	/* v is in kB/sec. We don't expect TiByte/sec yet. */
+	if (unlikely(v >= 1000000)) {
+		/* cool: > GiByte/s */
+		seq_printf(seq, "%ld,", v / 1000000);
+		v /= 1000000;
+		seq_printf(seq, "%03ld,%03ld", v/1000, v % 1000);
+	} else if (likely(v >= 1000))
+		seq_printf(seq, "%ld,%03ld", v/1000, v % 1000);
+	else
+		seq_printf(seq, "%ld", v);
+}
 
 /*lge
  * progress bars shamelessly adapted from driver/md/md.c
@@ -71,10 +85,15 @@ static void drbd_syncer_progress(struct drbd_conf *mdev, struct seq_file *seq)
 		seq_printf(seq, ".");
 	seq_printf(seq, "] ");
 
-	seq_printf(seq, "sync'ed:%3u.%u%% ", res / 10, res % 10);
-	/* if more than 1 GB display in MB */
-	if (mdev->rs_total > 0x100000L)
-		seq_printf(seq, "(%lu/%lu)M\n\t",
+	if (mdev->state.conn == C_VERIFY_S || mdev->state.conn == C_VERIFY_T)
+		seq_printf(seq, "verified:");
+	else
+		seq_printf(seq, "sync'ed:");
+	seq_printf(seq, "%3u.%u%% ", res / 10, res % 10);
+
+	/* if more than a few GB, display in MB */
+	if (mdev->rs_total > (4UL << (30 - BM_BLOCK_SHIFT)))
+		seq_printf(seq, "(%lu/%lu)M",
 			    (unsigned long) Bit2KB(rs_left >> 10),
 			    (unsigned long) Bit2KB(mdev->rs_total >> 10));
 	else
@@ -94,6 +113,7 @@ static void drbd_syncer_progress(struct drbd_conf *mdev, struct seq_file *seq)
 	/* Rolling marks. last_mark+1 may just now be modified.  last_mark+2 is
 	 * at least (DRBD_SYNC_MARKS-2)*DRBD_SYNC_MARK_STEP old, and has at
 	 * least DRBD_SYNC_MARK_STEP time before it will be modified. */
+	/* ------------------------ ~18s average ------------------------ */
 	i = (mdev->rs_last_mark + 2) % DRBD_SYNC_MARKS;
 	dt = (jiffies - mdev->rs_mark_time[i]) / HZ;
 	if (dt > (DRBD_SYNC_MARK_STEP * DRBD_SYNC_MARKS))
@@ -107,14 +127,24 @@ static void drbd_syncer_progress(struct drbd_conf *mdev, struct seq_file *seq)
 	seq_printf(seq, "finish: %lu:%02lu:%02lu",
 		rt / 3600, (rt % 3600) / 60, rt % 60);
 
-	/* current speed average over (SYNC_MARKS * SYNC_MARK_STEP) jiffies */
 	dbdt = Bit2KB(db/dt);
-	if (dbdt > 1000)
-		seq_printf(seq, " speed: %ld,%03ld",
-			dbdt/1000, dbdt % 1000);
-	else
-		seq_printf(seq, " speed: %ld", dbdt);
+	seq_printf(seq, " speed: ");
+	seq_printf_with_thousands_grouping(seq, dbdt);
+	seq_printf(seq, " (");
+	/* ------------------------- ~3s average ------------------------ */
+	if (proc_details >= 1) {
+		/* this is what drbd_rs_should_slow_down() uses */
+		i = (mdev->rs_last_mark + DRBD_SYNC_MARKS-1) % DRBD_SYNC_MARKS;
+		dt = (jiffies - mdev->rs_mark_time[i]) / HZ;
+		if (!dt)
+			dt++;
+		db = mdev->rs_mark_left[i] - rs_left;
+		dbdt = Bit2KB(db/dt);
+		seq_printf_with_thousands_grouping(seq, dbdt);
+		seq_printf(seq, " -- ");
+	}
 
+	/* --------------------- long term average ---------------------- */
 	/* mean speed since syncer started
 	 * we do account for PausedSync periods */
 	dt = (jiffies - mdev->rs_start - mdev->rs_paused) / HZ;
@@ -122,20 +152,34 @@ static void drbd_syncer_progress(struct drbd_conf *mdev, struct seq_file *seq)
 		dt = 1;
 	db = mdev->rs_total - rs_left;
 	dbdt = Bit2KB(db/dt);
-	if (dbdt > 1000)
-		seq_printf(seq, " (%ld,%03ld)",
-			dbdt/1000, dbdt % 1000);
-	else
-		seq_printf(seq, " (%ld)", dbdt);
+	seq_printf_with_thousands_grouping(seq, dbdt);
+	seq_printf(seq, ")");
 
-	if (mdev->state.conn == C_SYNC_TARGET) {
-		if (mdev->c_sync_rate > 1000)
-			seq_printf(seq, " want: %d,%03d",
-				   mdev->c_sync_rate / 1000, mdev->c_sync_rate % 1000);
-		else
-			seq_printf(seq, " want: %d", mdev->c_sync_rate);
+	if (mdev->state.conn == C_SYNC_TARGET ||
+	    mdev->state.conn == C_VERIFY_S) {
+		seq_printf(seq, " want: ");
+		seq_printf_with_thousands_grouping(seq, mdev->c_sync_rate);
 	}
 	seq_printf(seq, " K/sec%s\n", stalled ? " (stalled)" : "");
+
+	if (proc_details >= 1) {
+		/* 64 bit:
+		 * we convert to sectors in the display below. */
+		unsigned long bm_bits = drbd_bm_bits(mdev);
+		unsigned long bit_pos;
+		if (mdev->state.conn == C_VERIFY_S ||
+		    mdev->state.conn == C_VERIFY_T)
+			bit_pos = bm_bits - mdev->ov_left;
+		else
+			bit_pos = mdev->bm_resync_fo;
+		/* Total sectors may be slightly off for oddly
+		 * sized devices. So what. */
+		seq_printf(seq,
+			"\t%3d%% sector pos: %llu/%llu\n",
+			(int)(bit_pos / (bm_bits/100+1)),
+			(unsigned long long)bit_pos * BM_SECT_PER_BIT,
+			(unsigned long long)bm_bits * BM_SECT_PER_BIT);
+	}
 }
 
 static void resync_dump_detail(struct seq_file *seq, struct lc_element *e)
@@ -232,20 +276,16 @@ static int drbd_seq_show(struct seq_file *seq, void *v)
 			   mdev->epochs,
 			   write_ordering_chars[mdev->write_ordering]
 			);
-			seq_printf(seq, " oos:%lu\n",
-				   Bit2KB(drbd_bm_total_weight(mdev)));
+			seq_printf(seq, " oos:%llu\n",
+				   Bit2KB((unsigned long long)
+					   drbd_bm_total_weight(mdev)));
 		}
 		if (mdev->state.conn == C_SYNC_SOURCE ||
-		    mdev->state.conn == C_SYNC_TARGET)
+		    mdev->state.conn == C_SYNC_TARGET ||
+		    mdev->state.conn == C_VERIFY_S ||
+		    mdev->state.conn == C_VERIFY_T)
 			drbd_syncer_progress(mdev, seq);
 
-		if (mdev->state.conn == C_VERIFY_S || mdev->state.conn == C_VERIFY_T)
-			seq_printf(seq, "\t%3d%%      %lu/%lu\n",
-				   (int)((mdev->rs_total-mdev->ov_left) /
-					 (mdev->rs_total/100+1)),
-				   mdev->rs_total - mdev->ov_left,
-				   mdev->rs_total);
-
 		if (proc_details >= 1 && get_ldev_if_state(mdev, D_FAILED)) {
 			lc_seq_printf_stats(seq, mdev->resync);
 			lc_seq_printf_stats(seq, mdev->act_log);
@@ -265,7 +305,15 @@ static int drbd_seq_show(struct seq_file *seq, void *v)
 
 static int drbd_proc_open(struct inode *inode, struct file *file)
 {
-	return single_open(file, drbd_seq_show, PDE(inode)->data);
+	if (try_module_get(THIS_MODULE))
+		return single_open(file, drbd_seq_show, PDE(inode)->data);
+	return -ENODEV;
+}
+
+static int drbd_proc_release(struct inode *inode, struct file *file)
+{
+	module_put(THIS_MODULE);
+	return single_release(inode, file);
 }
 
 /* PROC FS stuff end */
diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c
index 8e68be939deb..fd26666c0b08 100644
--- a/drivers/block/drbd/drbd_receiver.c
+++ b/drivers/block/drbd/drbd_receiver.c
@@ -277,7 +277,7 @@ static void drbd_pp_free(struct drbd_conf *mdev, struct page *page, int is_net)
 	atomic_t *a = is_net ? &mdev->pp_in_use_by_net : &mdev->pp_in_use;
 	int i;
 
-	if (drbd_pp_vacant > (DRBD_MAX_SEGMENT_SIZE/PAGE_SIZE)*minor_count)
+	if (drbd_pp_vacant > (DRBD_MAX_BIO_SIZE/PAGE_SIZE)*minor_count)
 		i = page_chain_free(page);
 	else {
 		struct page *tmp;
@@ -319,7 +319,7 @@ struct drbd_epoch_entry *drbd_alloc_ee(struct drbd_conf *mdev,
 	struct page *page;
 	unsigned nr_pages = (data_size + PAGE_SIZE -1) >> PAGE_SHIFT;
 
-	if (FAULT_ACTIVE(mdev, DRBD_FAULT_AL_EE))
+	if (drbd_insert_fault(mdev, DRBD_FAULT_AL_EE))
 		return NULL;
 
 	e = mempool_alloc(drbd_ee_mempool, gfp_mask & ~__GFP_HIGHMEM);
@@ -725,16 +725,16 @@ static int drbd_socket_okay(struct drbd_conf *mdev, struct socket **sock)
 	char tb[4];
 
 	if (!*sock)
-		return FALSE;
+		return false;
 
 	rr = drbd_recv_short(mdev, *sock, tb, 4, MSG_DONTWAIT | MSG_PEEK);
 
 	if (rr > 0 || rr == -EAGAIN) {
-		return TRUE;
+		return true;
 	} else {
 		sock_release(*sock);
 		*sock = NULL;
-		return FALSE;
+		return false;
 	}
 }
 
@@ -768,8 +768,7 @@ static int drbd_connect(struct drbd_conf *mdev)
 			if (s || ++try >= 3)
 				break;
 			/* give the other side time to call bind() & listen() */
-			__set_current_state(TASK_INTERRUPTIBLE);
-			schedule_timeout(HZ / 10);
+			schedule_timeout_interruptible(HZ / 10);
 		}
 
 		if (s) {
@@ -788,8 +787,7 @@ static int drbd_connect(struct drbd_conf *mdev)
 		}
 
 		if (sock && msock) {
-			__set_current_state(TASK_INTERRUPTIBLE);
-			schedule_timeout(HZ / 10);
+			schedule_timeout_interruptible(HZ / 10);
 			ok = drbd_socket_okay(mdev, &sock);
 			ok = drbd_socket_okay(mdev, &msock) && ok;
 			if (ok)
@@ -864,7 +862,7 @@ retry:
 	msock->sk->sk_rcvtimeo = mdev->net_conf->ping_int*HZ;
 
 	/* we don't want delays.
-	 * we use TCP_CORK where apropriate, though */
+	 * we use TCP_CORK where appropriate, though */
 	drbd_tcp_nodelay(sock);
 	drbd_tcp_nodelay(msock);
 
@@ -906,7 +904,7 @@ retry:
 		put_ldev(mdev);
 	}
 
-	if (!drbd_send_protocol(mdev))
+	if (drbd_send_protocol(mdev) == -1)
 		return -1;
 	drbd_send_sync_param(mdev, &mdev->sync_conf);
 	drbd_send_sizes(mdev, 0, 0);
@@ -914,6 +912,7 @@ retry:
 	drbd_send_state(mdev);
 	clear_bit(USE_DEGR_WFC_T, &mdev->flags);
 	clear_bit(RESIZE_PENDING, &mdev->flags);
+	mod_timer(&mdev->request_timer, jiffies + HZ); /* just start it here. */
 
 	return 1;
 
@@ -932,8 +931,9 @@ static int drbd_recv_header(struct drbd_conf *mdev, enum drbd_packets *cmd, unsi
 
 	r = drbd_recv(mdev, h, sizeof(*h));
 	if (unlikely(r != sizeof(*h))) {
-		dev_err(DEV, "short read expecting header on sock: r=%d\n", r);
-		return FALSE;
+		if (!signal_pending(current))
+			dev_warn(DEV, "short read expecting header on sock: r=%d\n", r);
+		return false;
 	}
 
 	if (likely(h->h80.magic == BE_DRBD_MAGIC)) {
@@ -947,11 +947,11 @@ static int drbd_recv_header(struct drbd_conf *mdev, enum drbd_packets *cmd, unsi
 		    be32_to_cpu(h->h80.magic),
 		    be16_to_cpu(h->h80.command),
 		    be16_to_cpu(h->h80.length));
-		return FALSE;
+		return false;
 	}
 	mdev->last_received = jiffies;
 
-	return TRUE;
+	return true;
 }
 
 static void drbd_flush(struct drbd_conf *mdev)
@@ -1074,6 +1074,16 @@ void drbd_bump_write_ordering(struct drbd_conf *mdev, enum write_ordering_e wo)
  * @mdev:	DRBD device.
  * @e:		epoch entry
  * @rw:		flag field, see bio->bi_rw
+ *
+ * May spread the pages to multiple bios,
+ * depending on bio_add_page restrictions.
+ *
+ * Returns 0 if all bios have been submitted,
+ * -ENOMEM if we could not allocate enough bios,
+ * -ENOSPC (any better suggestion?) if we have not been able to bio_add_page a
+ *  single page to an empty bio (which should never happen and likely indicates
+ *  that the lower level IO stack is in some way broken). This has been observed
+ *  on certain Xen deployments.
  */
 /* TODO allocate from our own bio_set. */
 int drbd_submit_ee(struct drbd_conf *mdev, struct drbd_epoch_entry *e,
@@ -1086,6 +1096,7 @@ int drbd_submit_ee(struct drbd_conf *mdev, struct drbd_epoch_entry *e,
 	unsigned ds = e->size;
 	unsigned n_bios = 0;
 	unsigned nr_pages = (ds + PAGE_SIZE -1) >> PAGE_SHIFT;
+	int err = -ENOMEM;
 
 	/* In most cases, we will only need one bio.  But in case the lower
 	 * level restrictions happen to be different at this offset on this
@@ -1111,8 +1122,17 @@ next_bio:
 	page_chain_for_each(page) {
 		unsigned len = min_t(unsigned, ds, PAGE_SIZE);
 		if (!bio_add_page(bio, page, len, 0)) {
-			/* a single page must always be possible! */
-			BUG_ON(bio->bi_vcnt == 0);
+			/* A single page must always be possible!
+			 * But in case it fails anyways,
+			 * we deal with it, and complain (below). */
+			if (bio->bi_vcnt == 0) {
+				dev_err(DEV,
+					"bio_add_page failed for len=%u, "
+					"bi_vcnt=0 (bi_sector=%llu)\n",
+					len, (unsigned long long)bio->bi_sector);
+				err = -ENOSPC;
+				goto fail;
+			}
 			goto next_bio;
 		}
 		ds -= len;
@@ -1138,7 +1158,7 @@ fail:
 		bios = bios->bi_next;
 		bio_put(bio);
 	}
-	return -ENOMEM;
+	return err;
 }
 
 static int receive_Barrier(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned int data_size)
@@ -1160,7 +1180,7 @@ static int receive_Barrier(struct drbd_conf *mdev, enum drbd_packets cmd, unsign
 	switch (mdev->write_ordering) {
 	case WO_none:
 		if (rv == FE_RECYCLED)
-			return TRUE;
+			return true;
 
 		/* receiver context, in the writeout path of the other node.
 		 * avoid potential distributed deadlock */
@@ -1188,10 +1208,10 @@ static int receive_Barrier(struct drbd_conf *mdev, enum drbd_packets cmd, unsign
 		D_ASSERT(atomic_read(&epoch->active) == 0);
 		D_ASSERT(epoch->flags == 0);
 
-		return TRUE;
+		return true;
 	default:
 		dev_err(DEV, "Strangeness in mdev->write_ordering %d\n", mdev->write_ordering);
-		return FALSE;
+		return false;
 	}
 
 	epoch->flags = 0;
@@ -1209,7 +1229,7 @@ static int receive_Barrier(struct drbd_conf *mdev, enum drbd_packets cmd, unsign
 	}
 	spin_unlock(&mdev->epoch_lock);
 
-	return TRUE;
+	return true;
 }
 
 /* used from receive_RSDataReply (recv_resync_read)
@@ -1231,21 +1251,25 @@ read_in_block(struct drbd_conf *mdev, u64 id, sector_t sector, int data_size) __
 	if (dgs) {
 		rr = drbd_recv(mdev, dig_in, dgs);
 		if (rr != dgs) {
-			dev_warn(DEV, "short read receiving data digest: read %d expected %d\n",
-			     rr, dgs);
+			if (!signal_pending(current))
+				dev_warn(DEV,
+					"short read receiving data digest: read %d expected %d\n",
+					rr, dgs);
 			return NULL;
 		}
 	}
 
 	data_size -= dgs;
 
+	ERR_IF(data_size == 0) return NULL;
 	ERR_IF(data_size &  0x1ff) return NULL;
-	ERR_IF(data_size >  DRBD_MAX_SEGMENT_SIZE) return NULL;
+	ERR_IF(data_size >  DRBD_MAX_BIO_SIZE) return NULL;
 
 	/* even though we trust out peer,
 	 * we sometimes have to double check. */
 	if (sector + (data_size>>9) > capacity) {
-		dev_err(DEV, "capacity: %llus < sector: %llus + size: %u\n",
+		dev_err(DEV, "request from peer beyond end of local disk: "
+			"capacity: %llus < sector: %llus + size: %u\n",
 			(unsigned long long)capacity,
 			(unsigned long long)sector, data_size);
 		return NULL;
@@ -1264,15 +1288,16 @@ read_in_block(struct drbd_conf *mdev, u64 id, sector_t sector, int data_size) __
 		unsigned len = min_t(int, ds, PAGE_SIZE);
 		data = kmap(page);
 		rr = drbd_recv(mdev, data, len);
-		if (FAULT_ACTIVE(mdev, DRBD_FAULT_RECEIVE)) {
+		if (drbd_insert_fault(mdev, DRBD_FAULT_RECEIVE)) {
 			dev_err(DEV, "Fault injection: Corrupting data on receive\n");
 			data[0] = data[0] ^ (unsigned long)-1;
 		}
 		kunmap(page);
 		if (rr != len) {
 			drbd_free_ee(mdev, e);
-			dev_warn(DEV, "short read receiving data: read %d expected %d\n",
-			     rr, len);
+			if (!signal_pending(current))
+				dev_warn(DEV, "short read receiving data: read %d expected %d\n",
+				rr, len);
 			return NULL;
 		}
 		ds -= rr;
@@ -1281,7 +1306,8 @@ read_in_block(struct drbd_conf *mdev, u64 id, sector_t sector, int data_size) __
 	if (dgs) {
 		drbd_csum_ee(mdev, mdev->integrity_r_tfm, e, dig_vv);
 		if (memcmp(dig_in, dig_vv, dgs)) {
-			dev_err(DEV, "Digest integrity check FAILED.\n");
+			dev_err(DEV, "Digest integrity check FAILED: %llus +%u\n",
+				(unsigned long long)sector, data_size);
 			drbd_bcast_ee(mdev, "digest failed",
 					dgs, dig_in, dig_vv, e);
 			drbd_free_ee(mdev, e);
@@ -1302,7 +1328,7 @@ static int drbd_drain_block(struct drbd_conf *mdev, int data_size)
 	void *data;
 
 	if (!data_size)
-		return TRUE;
+		return true;
 
 	page = drbd_pp_alloc(mdev, 1, 1);
 
@@ -1311,8 +1337,10 @@ static int drbd_drain_block(struct drbd_conf *mdev, int data_size)
 		rr = drbd_recv(mdev, data, min_t(int, data_size, PAGE_SIZE));
 		if (rr != min_t(int, data_size, PAGE_SIZE)) {
 			rv = 0;
-			dev_warn(DEV, "short read receiving data: read %d expected %d\n",
-			     rr, min_t(int, data_size, PAGE_SIZE));
+			if (!signal_pending(current))
+				dev_warn(DEV,
+					"short read receiving data: read %d expected %d\n",
+					rr, min_t(int, data_size, PAGE_SIZE));
 			break;
 		}
 		data_size -= rr;
@@ -1337,8 +1365,10 @@ static int recv_dless_read(struct drbd_conf *mdev, struct drbd_request *req,
 	if (dgs) {
 		rr = drbd_recv(mdev, dig_in, dgs);
 		if (rr != dgs) {
-			dev_warn(DEV, "short read receiving data reply digest: read %d expected %d\n",
-			     rr, dgs);
+			if (!signal_pending(current))
+				dev_warn(DEV,
+					"short read receiving data reply digest: read %d expected %d\n",
+					rr, dgs);
 			return 0;
 		}
 	}
@@ -1359,9 +1389,10 @@ static int recv_dless_read(struct drbd_conf *mdev, struct drbd_request *req,
 			     expect);
 		kunmap(bvec->bv_page);
 		if (rr != expect) {
-			dev_warn(DEV, "short read receiving data reply: "
-			     "read %d expected %d\n",
-			     rr, expect);
+			if (!signal_pending(current))
+				dev_warn(DEV, "short read receiving data reply: "
+					"read %d expected %d\n",
+					rr, expect);
 			return 0;
 		}
 		data_size -= rr;
@@ -1425,11 +1456,10 @@ static int recv_resync_read(struct drbd_conf *mdev, sector_t sector, int data_si
 
 	atomic_add(data_size >> 9, &mdev->rs_sect_ev);
 	if (drbd_submit_ee(mdev, e, WRITE, DRBD_FAULT_RS_WR) == 0)
-		return TRUE;
+		return true;
 
-	/* drbd_submit_ee currently fails for one reason only:
-	 * not being able to allocate enough bios.
-	 * Is dropping the connection going to help? */
+	/* don't care for the reason here */
+	dev_err(DEV, "submit failed, triggering re-connect\n");
 	spin_lock_irq(&mdev->req_lock);
 	list_del(&e->w.list);
 	spin_unlock_irq(&mdev->req_lock);
@@ -1437,7 +1467,7 @@ static int recv_resync_read(struct drbd_conf *mdev, sector_t sector, int data_si
 	drbd_free_ee(mdev, e);
 fail:
 	put_ldev(mdev);
-	return FALSE;
+	return false;
 }
 
 static int receive_DataReply(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned int data_size)
@@ -1454,7 +1484,7 @@ static int receive_DataReply(struct drbd_conf *mdev, enum drbd_packets cmd, unsi
 	spin_unlock_irq(&mdev->req_lock);
 	if (unlikely(!req)) {
 		dev_err(DEV, "Got a corrupt block_id/sector pair(1).\n");
-		return FALSE;
+		return false;
 	}
 
 	/* hlist_del(&req->colision) is done in _req_may_be_done, to avoid
@@ -1611,15 +1641,15 @@ static int drbd_wait_peer_seq(struct drbd_conf *mdev, const u32 packet_seq)
 	return ret;
 }
 
-static unsigned long write_flags_to_bio(struct drbd_conf *mdev, u32 dpf)
+/* see also bio_flags_to_wire()
+ * DRBD_REQ_*, because we need to semantically map the flags to data packet
+ * flags and back. We may replicate to other kernel versions. */
+static unsigned long wire_flags_to_bio(struct drbd_conf *mdev, u32 dpf)
 {
-	if (mdev->agreed_pro_version >= 95)
-		return  (dpf & DP_RW_SYNC ? REQ_SYNC : 0) |
-			(dpf & DP_FUA ? REQ_FUA : 0) |
-			(dpf & DP_FLUSH ? REQ_FUA : 0) |
-			(dpf & DP_DISCARD ? REQ_DISCARD : 0);
-	else
-		return dpf & DP_RW_SYNC ? REQ_SYNC : 0;
+	return  (dpf & DP_RW_SYNC ? REQ_SYNC : 0) |
+		(dpf & DP_FUA ? REQ_FUA : 0) |
+		(dpf & DP_FLUSH ? REQ_FLUSH : 0) |
+		(dpf & DP_DISCARD ? REQ_DISCARD : 0);
 }
 
 /* mirrored write */
@@ -1632,9 +1662,6 @@ static int receive_Data(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned
 	u32 dp_flags;
 
 	if (!get_ldev(mdev)) {
-		if (__ratelimit(&drbd_ratelimit_state))
-			dev_err(DEV, "Can not write mirrored data block "
-			    "to local disk.\n");
 		spin_lock(&mdev->peer_seq_lock);
 		if (mdev->peer_seq+1 == be32_to_cpu(p->seq_num))
 			mdev->peer_seq++;
@@ -1654,23 +1681,23 @@ static int receive_Data(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned
 	e = read_in_block(mdev, p->block_id, sector, data_size);
 	if (!e) {
 		put_ldev(mdev);
-		return FALSE;
+		return false;
 	}
 
 	e->w.cb = e_end_block;
 
+	dp_flags = be32_to_cpu(p->dp_flags);
+	rw |= wire_flags_to_bio(mdev, dp_flags);
+
+	if (dp_flags & DP_MAY_SET_IN_SYNC)
+		e->flags |= EE_MAY_SET_IN_SYNC;
+
 	spin_lock(&mdev->epoch_lock);
 	e->epoch = mdev->current_epoch;
 	atomic_inc(&e->epoch->epoch_size);
 	atomic_inc(&e->epoch->active);
 	spin_unlock(&mdev->epoch_lock);
 
-	dp_flags = be32_to_cpu(p->dp_flags);
-	rw |= write_flags_to_bio(mdev, dp_flags);
-
-	if (dp_flags & DP_MAY_SET_IN_SYNC)
-		e->flags |= EE_MAY_SET_IN_SYNC;
-
 	/* I'm the receiver, I do hold a net_cnt reference. */
 	if (!mdev->net_conf->two_primaries) {
 		spin_lock_irq(&mdev->req_lock);
@@ -1773,7 +1800,7 @@ static int receive_Data(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned
 				put_ldev(mdev);
 				wake_asender(mdev);
 				finish_wait(&mdev->misc_wait, &wait);
-				return TRUE;
+				return true;
 			}
 
 			if (signal_pending(current)) {
@@ -1829,11 +1856,10 @@ static int receive_Data(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned
 	}
 
 	if (drbd_submit_ee(mdev, e, rw, DRBD_FAULT_DT_WR) == 0)
-		return TRUE;
+		return true;
 
-	/* drbd_submit_ee currently fails for one reason only:
-	 * not being able to allocate enough bios.
-	 * Is dropping the connection going to help? */
+	/* don't care for the reason here */
+	dev_err(DEV, "submit failed, triggering re-connect\n");
 	spin_lock_irq(&mdev->req_lock);
 	list_del(&e->w.list);
 	hlist_del_init(&e->colision);
@@ -1842,12 +1868,10 @@ static int receive_Data(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned
 		drbd_al_complete_io(mdev, e->sector);
 
 out_interrupted:
-	/* yes, the epoch_size now is imbalanced.
-	 * but we drop the connection anyways, so we don't have a chance to
-	 * receive a barrier... atomic_inc(&mdev->epoch_size); */
+	drbd_may_finish_epoch(mdev, e->epoch, EV_PUT + EV_CLEANUP);
 	put_ldev(mdev);
 	drbd_free_ee(mdev, e);
-	return FALSE;
+	return false;
 }
 
 /* We may throttle resync, if the lower device seems to be busy,
@@ -1861,10 +1885,11 @@ out_interrupted:
  * The current sync rate used here uses only the most recent two step marks,
  * to have a short time average so we can react faster.
  */
-int drbd_rs_should_slow_down(struct drbd_conf *mdev)
+int drbd_rs_should_slow_down(struct drbd_conf *mdev, sector_t sector)
 {
 	struct gendisk *disk = mdev->ldev->backing_bdev->bd_contains->bd_disk;
 	unsigned long db, dt, dbdt;
+	struct lc_element *tmp;
 	int curr_events;
 	int throttle = 0;
 
@@ -1872,9 +1897,22 @@ int drbd_rs_should_slow_down(struct drbd_conf *mdev)
 	if (mdev->sync_conf.c_min_rate == 0)
 		return 0;
 
+	spin_lock_irq(&mdev->al_lock);
+	tmp = lc_find(mdev->resync, BM_SECT_TO_EXT(sector));
+	if (tmp) {
+		struct bm_extent *bm_ext = lc_entry(tmp, struct bm_extent, lce);
+		if (test_bit(BME_PRIORITY, &bm_ext->flags)) {
+			spin_unlock_irq(&mdev->al_lock);
+			return 0;
+		}
+		/* Do not slow down if app IO is already waiting for this extent */
+	}
+	spin_unlock_irq(&mdev->al_lock);
+
 	curr_events = (int)part_stat_read(&disk->part0, sectors[0]) +
 		      (int)part_stat_read(&disk->part0, sectors[1]) -
 			atomic_read(&mdev->rs_sect_ev);
+
 	if (!mdev->rs_last_events || curr_events - mdev->rs_last_events > 64) {
 		unsigned long rs_left;
 		int i;
@@ -1883,8 +1921,12 @@ int drbd_rs_should_slow_down(struct drbd_conf *mdev)
 
 		/* sync speed average over the last 2*DRBD_SYNC_MARK_STEP,
 		 * approx. */
-		i = (mdev->rs_last_mark + DRBD_SYNC_MARKS-2) % DRBD_SYNC_MARKS;
-		rs_left = drbd_bm_total_weight(mdev) - mdev->rs_failed;
+		i = (mdev->rs_last_mark + DRBD_SYNC_MARKS-1) % DRBD_SYNC_MARKS;
+
+		if (mdev->state.conn == C_VERIFY_S || mdev->state.conn == C_VERIFY_T)
+			rs_left = mdev->ov_left;
+		else
+			rs_left = drbd_bm_total_weight(mdev) - mdev->rs_failed;
 
 		dt = ((long)jiffies - (long)mdev->rs_mark_time[i]) / HZ;
 		if (!dt)
@@ -1912,15 +1954,15 @@ static int receive_DataRequest(struct drbd_conf *mdev, enum drbd_packets cmd, un
 	sector = be64_to_cpu(p->sector);
 	size   = be32_to_cpu(p->blksize);
 
-	if (size <= 0 || (size & 0x1ff) != 0 || size > DRBD_MAX_SEGMENT_SIZE) {
+	if (size <= 0 || (size & 0x1ff) != 0 || size > DRBD_MAX_BIO_SIZE) {
 		dev_err(DEV, "%s:%d: sector: %llus, size: %u\n", __FILE__, __LINE__,
 				(unsigned long long)sector, size);
-		return FALSE;
+		return false;
 	}
 	if (sector + (size>>9) > capacity) {
 		dev_err(DEV, "%s:%d: sector: %llus, size: %u\n", __FILE__, __LINE__,
 				(unsigned long long)sector, size);
-		return FALSE;
+		return false;
 	}
 
 	if (!get_ldev_if_state(mdev, D_UP_TO_DATE)) {
@@ -1957,7 +1999,7 @@ static int receive_DataRequest(struct drbd_conf *mdev, enum drbd_packets cmd, un
 	e = drbd_alloc_ee(mdev, p->block_id, sector, size, GFP_NOIO);
 	if (!e) {
 		put_ldev(mdev);
-		return FALSE;
+		return false;
 	}
 
 	switch (cmd) {
@@ -1970,6 +2012,8 @@ static int receive_DataRequest(struct drbd_conf *mdev, enum drbd_packets cmd, un
 	case P_RS_DATA_REQUEST:
 		e->w.cb = w_e_end_rsdata_req;
 		fault_type = DRBD_FAULT_RS_RD;
+		/* used in the sector offset progress display */
+		mdev->bm_resync_fo = BM_SECT_TO_BIT(sector);
 		break;
 
 	case P_OV_REPLY:
@@ -1991,7 +2035,11 @@ static int receive_DataRequest(struct drbd_conf *mdev, enum drbd_packets cmd, un
 		if (cmd == P_CSUM_RS_REQUEST) {
 			D_ASSERT(mdev->agreed_pro_version >= 89);
 			e->w.cb = w_e_end_csum_rs_req;
+			/* used in the sector offset progress display */
+			mdev->bm_resync_fo = BM_SECT_TO_BIT(sector);
 		} else if (cmd == P_OV_REPLY) {
+			/* track progress, we may need to throttle */
+			atomic_add(size >> 9, &mdev->rs_sect_in);
 			e->w.cb = w_e_end_ov_reply;
 			dec_rs_pending(mdev);
 			/* drbd_rs_begin_io done when we sent this request,
@@ -2003,9 +2051,16 @@ static int receive_DataRequest(struct drbd_conf *mdev, enum drbd_packets cmd, un
 	case P_OV_REQUEST:
 		if (mdev->ov_start_sector == ~(sector_t)0 &&
 		    mdev->agreed_pro_version >= 90) {
+			unsigned long now = jiffies;
+			int i;
 			mdev->ov_start_sector = sector;
 			mdev->ov_position = sector;
-			mdev->ov_left = mdev->rs_total - BM_SECT_TO_BIT(sector);
+			mdev->ov_left = drbd_bm_bits(mdev) - BM_SECT_TO_BIT(sector);
+			mdev->rs_total = mdev->ov_left;
+			for (i = 0; i < DRBD_SYNC_MARKS; i++) {
+				mdev->rs_mark_left[i] = mdev->ov_left;
+				mdev->rs_mark_time[i] = now;
+			}
 			dev_info(DEV, "Online Verify start sector: %llu\n",
 					(unsigned long long)sector);
 		}
@@ -2042,9 +2097,9 @@ static int receive_DataRequest(struct drbd_conf *mdev, enum drbd_packets cmd, un
 	 * we would also throttle its application reads.
 	 * In that case, throttling is done on the SyncTarget only.
 	 */
-	if (mdev->state.peer != R_PRIMARY && drbd_rs_should_slow_down(mdev))
-		msleep(100);
-	if (drbd_rs_begin_io(mdev, e->sector))
+	if (mdev->state.peer != R_PRIMARY && drbd_rs_should_slow_down(mdev, sector))
+		schedule_timeout_uninterruptible(HZ/10);
+	if (drbd_rs_begin_io(mdev, sector))
 		goto out_free_e;
 
 submit_for_resync:
@@ -2057,11 +2112,10 @@ submit:
 	spin_unlock_irq(&mdev->req_lock);
 
 	if (drbd_submit_ee(mdev, e, READ, fault_type) == 0)
-		return TRUE;
+		return true;
 
-	/* drbd_submit_ee currently fails for one reason only:
-	 * not being able to allocate enough bios.
-	 * Is dropping the connection going to help? */
+	/* don't care for the reason here */
+	dev_err(DEV, "submit failed, triggering re-connect\n");
 	spin_lock_irq(&mdev->req_lock);
 	list_del(&e->w.list);
 	spin_unlock_irq(&mdev->req_lock);
@@ -2070,7 +2124,7 @@ submit:
 out_free_e:
 	put_ldev(mdev);
 	drbd_free_ee(mdev, e);
-	return FALSE;
+	return false;
 }
 
 static int drbd_asb_recover_0p(struct drbd_conf *mdev) __must_hold(local)
@@ -2147,10 +2201,7 @@ static int drbd_asb_recover_0p(struct drbd_conf *mdev) __must_hold(local)
 
 static int drbd_asb_recover_1p(struct drbd_conf *mdev) __must_hold(local)
 {
-	int self, peer, hg, rv = -100;
-
-	self = mdev->ldev->md.uuid[UI_BITMAP] & 1;
-	peer = mdev->p_uuid[UI_BITMAP] & 1;
+	int hg, rv = -100;
 
 	switch (mdev->net_conf->after_sb_1p) {
 	case ASB_DISCARD_YOUNGER_PRI:
@@ -2177,12 +2228,14 @@ static int drbd_asb_recover_1p(struct drbd_conf *mdev) __must_hold(local)
 	case ASB_CALL_HELPER:
 		hg = drbd_asb_recover_0p(mdev);
 		if (hg == -1 && mdev->state.role == R_PRIMARY) {
-			self = drbd_set_role(mdev, R_SECONDARY, 0);
+			enum drbd_state_rv rv2;
+
+			drbd_set_role(mdev, R_SECONDARY, 0);
 			 /* drbd_change_state() does not sleep while in SS_IN_TRANSIENT_STATE,
 			  * we might be here in C_WF_REPORT_PARAMS which is transient.
 			  * we do not need to wait for the after state change work either. */
-			self = drbd_change_state(mdev, CS_VERBOSE, NS(role, R_SECONDARY));
-			if (self != SS_SUCCESS) {
+			rv2 = drbd_change_state(mdev, CS_VERBOSE, NS(role, R_SECONDARY));
+			if (rv2 != SS_SUCCESS) {
 				drbd_khelper(mdev, "pri-lost-after-sb");
 			} else {
 				dev_warn(DEV, "Successfully gave up primary role.\n");
@@ -2197,10 +2250,7 @@ static int drbd_asb_recover_1p(struct drbd_conf *mdev) __must_hold(local)
 
 static int drbd_asb_recover_2p(struct drbd_conf *mdev) __must_hold(local)
 {
-	int self, peer, hg, rv = -100;
-
-	self = mdev->ldev->md.uuid[UI_BITMAP] & 1;
-	peer = mdev->p_uuid[UI_BITMAP] & 1;
+	int hg, rv = -100;
 
 	switch (mdev->net_conf->after_sb_2p) {
 	case ASB_DISCARD_YOUNGER_PRI:
@@ -2220,11 +2270,13 @@ static int drbd_asb_recover_2p(struct drbd_conf *mdev) __must_hold(local)
 	case ASB_CALL_HELPER:
 		hg = drbd_asb_recover_0p(mdev);
 		if (hg == -1) {
+			enum drbd_state_rv rv2;
+
 			 /* drbd_change_state() does not sleep while in SS_IN_TRANSIENT_STATE,
 			  * we might be here in C_WF_REPORT_PARAMS which is transient.
 			  * we do not need to wait for the after state change work either. */
-			self = drbd_change_state(mdev, CS_VERBOSE, NS(role, R_SECONDARY));
-			if (self != SS_SUCCESS) {
+			rv2 = drbd_change_state(mdev, CS_VERBOSE, NS(role, R_SECONDARY));
+			if (rv2 != SS_SUCCESS) {
 				drbd_khelper(mdev, "pri-lost-after-sb");
 			} else {
 				dev_warn(DEV, "Successfully gave up primary role.\n");
@@ -2263,6 +2315,8 @@ static void drbd_uuid_dump(struct drbd_conf *mdev, char *text, u64 *uuid,
    -2	C_SYNC_TARGET set BitMap
  -100	after split brain, disconnect
 -1000	unrelated data
+-1091   requires proto 91
+-1096   requires proto 96
  */
 static int drbd_uuid_compare(struct drbd_conf *mdev, int *rule_nr) __must_hold(local)
 {
@@ -2292,7 +2346,7 @@ static int drbd_uuid_compare(struct drbd_conf *mdev, int *rule_nr) __must_hold(l
 		if (mdev->p_uuid[UI_BITMAP] == (u64)0 && mdev->ldev->md.uuid[UI_BITMAP] != (u64)0) {
 
 			if (mdev->agreed_pro_version < 91)
-				return -1001;
+				return -1091;
 
 			if ((mdev->ldev->md.uuid[UI_BITMAP] & ~((u64)1)) == (mdev->p_uuid[UI_HISTORY_START] & ~((u64)1)) &&
 			    (mdev->ldev->md.uuid[UI_HISTORY_START] & ~((u64)1)) == (mdev->p_uuid[UI_HISTORY_START + 1] & ~((u64)1))) {
@@ -2313,7 +2367,7 @@ static int drbd_uuid_compare(struct drbd_conf *mdev, int *rule_nr) __must_hold(l
 		if (mdev->ldev->md.uuid[UI_BITMAP] == (u64)0 && mdev->p_uuid[UI_BITMAP] != (u64)0) {
 
 			if (mdev->agreed_pro_version < 91)
-				return -1001;
+				return -1091;
 
 			if ((mdev->ldev->md.uuid[UI_HISTORY_START] & ~((u64)1)) == (mdev->p_uuid[UI_BITMAP] & ~((u64)1)) &&
 			    (mdev->ldev->md.uuid[UI_HISTORY_START + 1] & ~((u64)1)) == (mdev->p_uuid[UI_HISTORY_START] & ~((u64)1))) {
@@ -2358,17 +2412,22 @@ static int drbd_uuid_compare(struct drbd_conf *mdev, int *rule_nr) __must_hold(l
 	*rule_nr = 51;
 	peer = mdev->p_uuid[UI_HISTORY_START] & ~((u64)1);
 	if (self == peer) {
-		self = mdev->ldev->md.uuid[UI_HISTORY_START] & ~((u64)1);
-		peer = mdev->p_uuid[UI_HISTORY_START + 1] & ~((u64)1);
-		if (self == peer) {
+		if (mdev->agreed_pro_version < 96 ?
+		    (mdev->ldev->md.uuid[UI_HISTORY_START] & ~((u64)1)) ==
+		    (mdev->p_uuid[UI_HISTORY_START + 1] & ~((u64)1)) :
+		    peer + UUID_NEW_BM_OFFSET == (mdev->p_uuid[UI_BITMAP] & ~((u64)1))) {
 			/* The last P_SYNC_UUID did not get though. Undo the last start of
 			   resync as sync source modifications of the peer's UUIDs. */
 
 			if (mdev->agreed_pro_version < 91)
-				return -1001;
+				return -1091;
 
 			mdev->p_uuid[UI_BITMAP] = mdev->p_uuid[UI_HISTORY_START];
 			mdev->p_uuid[UI_HISTORY_START] = mdev->p_uuid[UI_HISTORY_START + 1];
+
+			dev_info(DEV, "Did not got last syncUUID packet, corrected:\n");
+			drbd_uuid_dump(mdev, "peer", mdev->p_uuid, mdev->p_uuid[UI_SIZE], mdev->p_uuid[UI_FLAGS]);
+
 			return -1;
 		}
 	}
@@ -2390,20 +2449,20 @@ static int drbd_uuid_compare(struct drbd_conf *mdev, int *rule_nr) __must_hold(l
 	*rule_nr = 71;
 	self = mdev->ldev->md.uuid[UI_HISTORY_START] & ~((u64)1);
 	if (self == peer) {
-		self = mdev->ldev->md.uuid[UI_HISTORY_START + 1] & ~((u64)1);
-		peer = mdev->p_uuid[UI_HISTORY_START] & ~((u64)1);
-		if (self == peer) {
+		if (mdev->agreed_pro_version < 96 ?
+		    (mdev->ldev->md.uuid[UI_HISTORY_START + 1] & ~((u64)1)) ==
+		    (mdev->p_uuid[UI_HISTORY_START] & ~((u64)1)) :
+		    self + UUID_NEW_BM_OFFSET == (mdev->ldev->md.uuid[UI_BITMAP] & ~((u64)1))) {
 			/* The last P_SYNC_UUID did not get though. Undo the last start of
 			   resync as sync source modifications of our UUIDs. */
 
 			if (mdev->agreed_pro_version < 91)
-				return -1001;
+				return -1091;
 
 			_drbd_uuid_set(mdev, UI_BITMAP, mdev->ldev->md.uuid[UI_HISTORY_START]);
 			_drbd_uuid_set(mdev, UI_HISTORY_START, mdev->ldev->md.uuid[UI_HISTORY_START + 1]);
 
-			dev_info(DEV, "Undid last start of resync:\n");
-
+			dev_info(DEV, "Last syncUUID did not get through, corrected:\n");
 			drbd_uuid_dump(mdev, "self", mdev->ldev->md.uuid,
 				       mdev->state.disk >= D_NEGOTIATING ? drbd_bm_total_weight(mdev) : 0, 0);
 
@@ -2466,8 +2525,8 @@ static enum drbd_conns drbd_sync_handshake(struct drbd_conf *mdev, enum drbd_rol
 		dev_alert(DEV, "Unrelated data, aborting!\n");
 		return C_MASK;
 	}
-	if (hg == -1001) {
-		dev_alert(DEV, "To resolve this both sides have to support at least protocol\n");
+	if (hg < -1000) {
+		dev_alert(DEV, "To resolve this both sides have to support at least protocol %d\n", -hg - 1000);
 		return C_MASK;
 	}
 
@@ -2566,7 +2625,8 @@ static enum drbd_conns drbd_sync_handshake(struct drbd_conf *mdev, enum drbd_rol
 
 	if (abs(hg) >= 2) {
 		dev_info(DEV, "Writing the whole bitmap, full sync required after drbd_sync_handshake.\n");
-		if (drbd_bitmap_io(mdev, &drbd_bmio_set_n_write, "set_n_write from sync_handshake"))
+		if (drbd_bitmap_io(mdev, &drbd_bmio_set_n_write, "set_n_write from sync_handshake",
+					BM_LOCKED_SET_ALLOWED))
 			return C_MASK;
 	}
 
@@ -2660,7 +2720,7 @@ static int receive_protocol(struct drbd_conf *mdev, enum drbd_packets cmd, unsig
 		unsigned char *my_alg = mdev->net_conf->integrity_alg;
 
 		if (drbd_recv(mdev, p_integrity_alg, data_size) != data_size)
-			return FALSE;
+			return false;
 
 		p_integrity_alg[SHARED_SECRET_MAX-1] = 0;
 		if (strcmp(p_integrity_alg, my_alg)) {
@@ -2671,11 +2731,11 @@ static int receive_protocol(struct drbd_conf *mdev, enum drbd_packets cmd, unsig
 		     my_alg[0] ? my_alg : (unsigned char *)"<not-used>");
 	}
 
-	return TRUE;
+	return true;
 
 disconnect:
 	drbd_force_state(mdev, NS(conn, C_DISCONNECTING));
-	return FALSE;
+	return false;
 }
 
 /* helper function
@@ -2707,7 +2767,7 @@ struct crypto_hash *drbd_crypto_alloc_digest_safe(const struct drbd_conf *mdev,
 
 static int receive_SyncParam(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned int packet_size)
 {
-	int ok = TRUE;
+	int ok = true;
 	struct p_rs_param_95 *p = &mdev->data.rbuf.rs_param_95;
 	unsigned int header_size, data_size, exp_max_sz;
 	struct crypto_hash *verify_tfm = NULL;
@@ -2725,7 +2785,7 @@ static int receive_SyncParam(struct drbd_conf *mdev, enum drbd_packets cmd, unsi
 	if (packet_size > exp_max_sz) {
 		dev_err(DEV, "SyncParam packet too long: received %u, expected <= %u bytes\n",
 		    packet_size, exp_max_sz);
-		return FALSE;
+		return false;
 	}
 
 	if (apv <= 88) {
@@ -2745,7 +2805,7 @@ static int receive_SyncParam(struct drbd_conf *mdev, enum drbd_packets cmd, unsi
 	memset(p->verify_alg, 0, 2 * SHARED_SECRET_MAX);
 
 	if (drbd_recv(mdev, &p->head.payload, header_size) != header_size)
-		return FALSE;
+		return false;
 
 	mdev->sync_conf.rate	  = be32_to_cpu(p->rate);
 
@@ -2755,11 +2815,11 @@ static int receive_SyncParam(struct drbd_conf *mdev, enum drbd_packets cmd, unsi
 				dev_err(DEV, "verify-alg too long, "
 				    "peer wants %u, accepting only %u byte\n",
 						data_size, SHARED_SECRET_MAX);
-				return FALSE;
+				return false;
 			}
 
 			if (drbd_recv(mdev, p->verify_alg, data_size) != data_size)
-				return FALSE;
+				return false;
 
 			/* we expect NUL terminated string */
 			/* but just in case someone tries to be evil */
@@ -2853,7 +2913,7 @@ disconnect:
 	/* but free the verify_tfm again, if csums_tfm did not work out */
 	crypto_free_hash(verify_tfm);
 	drbd_force_state(mdev, NS(conn, C_DISCONNECTING));
-	return FALSE;
+	return false;
 }
 
 static void drbd_setup_order_type(struct drbd_conf *mdev, int peer)
@@ -2879,7 +2939,7 @@ static int receive_sizes(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned
 {
 	struct p_sizes *p = &mdev->data.rbuf.sizes;
 	enum determine_dev_size dd = unchanged;
-	unsigned int max_seg_s;
+	unsigned int max_bio_size;
 	sector_t p_size, p_usize, my_usize;
 	int ldsc = 0; /* local disk size changed */
 	enum dds_flags ddsf;
@@ -2890,7 +2950,7 @@ static int receive_sizes(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned
 	if (p_size == 0 && mdev->state.disk == D_DISKLESS) {
 		dev_err(DEV, "some backing storage is needed\n");
 		drbd_force_state(mdev, NS(conn, C_DISCONNECTING));
-		return FALSE;
+		return false;
 	}
 
 	/* just store the peer's disk size for now.
@@ -2927,18 +2987,17 @@ static int receive_sizes(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned
 			drbd_force_state(mdev, NS(conn, C_DISCONNECTING));
 			mdev->ldev->dc.disk_size = my_usize;
 			put_ldev(mdev);
-			return FALSE;
+			return false;
 		}
 		put_ldev(mdev);
 	}
-#undef min_not_zero
 
 	ddsf = be16_to_cpu(p->dds_flags);
 	if (get_ldev(mdev)) {
 		dd = drbd_determin_dev_size(mdev, ddsf);
 		put_ldev(mdev);
 		if (dd == dev_size_error)
-			return FALSE;
+			return false;
 		drbd_md_sync(mdev);
 	} else {
 		/* I am diskless, need to accept the peer's size. */
@@ -2952,14 +3011,14 @@ static int receive_sizes(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned
 		}
 
 		if (mdev->agreed_pro_version < 94)
-			max_seg_s = be32_to_cpu(p->max_segment_size);
+			max_bio_size = be32_to_cpu(p->max_bio_size);
 		else if (mdev->agreed_pro_version == 94)
-			max_seg_s = DRBD_MAX_SIZE_H80_PACKET;
+			max_bio_size = DRBD_MAX_SIZE_H80_PACKET;
 		else /* drbd 8.3.8 onwards */
-			max_seg_s = DRBD_MAX_SEGMENT_SIZE;
+			max_bio_size = DRBD_MAX_BIO_SIZE;
 
-		if (max_seg_s != queue_max_segment_size(mdev->rq_queue))
-			drbd_setup_queue_param(mdev, max_seg_s);
+		if (max_bio_size != queue_max_hw_sectors(mdev->rq_queue) << 9)
+			drbd_setup_queue_param(mdev, max_bio_size);
 
 		drbd_setup_order_type(mdev, be16_to_cpu(p->queue_order_type));
 		put_ldev(mdev);
@@ -2985,14 +3044,14 @@ static int receive_sizes(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned
 		}
 	}
 
-	return TRUE;
+	return true;
 }
 
 static int receive_uuids(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned int data_size)
 {
 	struct p_uuids *p = &mdev->data.rbuf.uuids;
 	u64 *p_uuid;
-	int i;
+	int i, updated_uuids = 0;
 
 	p_uuid = kmalloc(sizeof(u64)*UI_EXTENDED_SIZE, GFP_NOIO);
 
@@ -3009,7 +3068,7 @@ static int receive_uuids(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned
 		dev_err(DEV, "Can only connect to data with current UUID=%016llX\n",
 		    (unsigned long long)mdev->ed_uuid);
 		drbd_force_state(mdev, NS(conn, C_DISCONNECTING));
-		return FALSE;
+		return false;
 	}
 
 	if (get_ldev(mdev)) {
@@ -3021,19 +3080,21 @@ static int receive_uuids(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned
 		if (skip_initial_sync) {
 			dev_info(DEV, "Accepted new current UUID, preparing to skip initial sync\n");
 			drbd_bitmap_io(mdev, &drbd_bmio_clear_n_write,
-					"clear_n_write from receive_uuids");
+					"clear_n_write from receive_uuids",
+					BM_LOCKED_TEST_ALLOWED);
 			_drbd_uuid_set(mdev, UI_CURRENT, p_uuid[UI_CURRENT]);
 			_drbd_uuid_set(mdev, UI_BITMAP, 0);
 			_drbd_set_state(_NS2(mdev, disk, D_UP_TO_DATE, pdsk, D_UP_TO_DATE),
 					CS_VERBOSE, NULL);
 			drbd_md_sync(mdev);
+			updated_uuids = 1;
 		}
 		put_ldev(mdev);
 	} else if (mdev->state.disk < D_INCONSISTENT &&
 		   mdev->state.role == R_PRIMARY) {
 		/* I am a diskless primary, the peer just created a new current UUID
 		   for me. */
-		drbd_set_ed_uuid(mdev, p_uuid[UI_CURRENT]);
+		updated_uuids = drbd_set_ed_uuid(mdev, p_uuid[UI_CURRENT]);
 	}
 
 	/* Before we test for the disk state, we should wait until an eventually
@@ -3042,9 +3103,12 @@ static int receive_uuids(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned
 	   new disk state... */
 	wait_event(mdev->misc_wait, !test_bit(CLUSTER_ST_CHANGE, &mdev->flags));
 	if (mdev->state.conn >= C_CONNECTED && mdev->state.disk < D_INCONSISTENT)
-		drbd_set_ed_uuid(mdev, p_uuid[UI_CURRENT]);
+		updated_uuids |= drbd_set_ed_uuid(mdev, p_uuid[UI_CURRENT]);
 
-	return TRUE;
+	if (updated_uuids)
+		drbd_print_uuids(mdev, "receiver updated UUIDs to");
+
+	return true;
 }
 
 /**
@@ -3081,7 +3145,7 @@ static int receive_req_state(struct drbd_conf *mdev, enum drbd_packets cmd, unsi
 {
 	struct p_req_state *p = &mdev->data.rbuf.req_state;
 	union drbd_state mask, val;
-	int rv;
+	enum drbd_state_rv rv;
 
 	mask.i = be32_to_cpu(p->mask);
 	val.i = be32_to_cpu(p->val);
@@ -3089,7 +3153,7 @@ static int receive_req_state(struct drbd_conf *mdev, enum drbd_packets cmd, unsi
 	if (test_bit(DISCARD_CONCURRENT, &mdev->flags) &&
 	    test_bit(CLUSTER_ST_CHANGE, &mdev->flags)) {
 		drbd_send_sr_reply(mdev, SS_CONCURRENT_ST_CHG);
-		return TRUE;
+		return true;
 	}
 
 	mask = convert_state(mask);
@@ -3100,7 +3164,7 @@ static int receive_req_state(struct drbd_conf *mdev, enum drbd_packets cmd, unsi
 	drbd_send_sr_reply(mdev, rv);
 	drbd_md_sync(mdev);
 
-	return TRUE;
+	return true;
 }
 
 static int receive_state(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned int data_size)
@@ -3145,7 +3209,7 @@ static int receive_state(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned
 			 peer_state.conn == C_CONNECTED) {
 			if (drbd_bm_total_weight(mdev) <= mdev->rs_failed)
 				drbd_resync_finished(mdev);
-			return TRUE;
+			return true;
 		}
 	}
 
@@ -3161,6 +3225,9 @@ static int receive_state(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned
 	if (ns.conn == C_WF_REPORT_PARAMS)
 		ns.conn = C_CONNECTED;
 
+	if (peer_state.conn == C_AHEAD)
+		ns.conn = C_BEHIND;
+
 	if (mdev->p_uuid && peer_state.disk >= D_NEGOTIATING &&
 	    get_ldev_if_state(mdev, D_NEGOTIATING)) {
 		int cr; /* consider resync */
@@ -3195,10 +3262,10 @@ static int receive_state(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned
 				real_peer_disk = D_DISKLESS;
 			} else {
 				if (test_and_clear_bit(CONN_DRY_RUN, &mdev->flags))
-					return FALSE;
+					return false;
 				D_ASSERT(os.conn == C_WF_REPORT_PARAMS);
 				drbd_force_state(mdev, NS(conn, C_DISCONNECTING));
-				return FALSE;
+				return false;
 			}
 		}
 	}
@@ -3223,7 +3290,7 @@ static int receive_state(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned
 		drbd_uuid_new_current(mdev);
 		clear_bit(NEW_CUR_UUID, &mdev->flags);
 		drbd_force_state(mdev, NS2(conn, C_PROTOCOL_ERROR, susp, 0));
-		return FALSE;
+		return false;
 	}
 	rv = _drbd_set_state(mdev, ns, cs_flags, NULL);
 	ns = mdev->state;
@@ -3231,7 +3298,7 @@ static int receive_state(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned
 
 	if (rv < SS_SUCCESS) {
 		drbd_force_state(mdev, NS(conn, C_DISCONNECTING));
-		return FALSE;
+		return false;
 	}
 
 	if (os.conn > C_WF_REPORT_PARAMS) {
@@ -3249,7 +3316,7 @@ static int receive_state(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned
 
 	drbd_md_sync(mdev); /* update connected indicator, la_size, ... */
 
-	return TRUE;
+	return true;
 }
 
 static int receive_sync_uuid(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned int data_size)
@@ -3258,6 +3325,7 @@ static int receive_sync_uuid(struct drbd_conf *mdev, enum drbd_packets cmd, unsi
 
 	wait_event(mdev->misc_wait,
 		   mdev->state.conn == C_WF_SYNC_UUID ||
+		   mdev->state.conn == C_BEHIND ||
 		   mdev->state.conn < C_CONNECTED ||
 		   mdev->state.disk < D_NEGOTIATING);
 
@@ -3269,32 +3337,42 @@ static int receive_sync_uuid(struct drbd_conf *mdev, enum drbd_packets cmd, unsi
 		_drbd_uuid_set(mdev, UI_CURRENT, be64_to_cpu(p->uuid));
 		_drbd_uuid_set(mdev, UI_BITMAP, 0UL);
 
+		drbd_print_uuids(mdev, "updated sync uuid");
 		drbd_start_resync(mdev, C_SYNC_TARGET);
 
 		put_ldev(mdev);
 	} else
 		dev_err(DEV, "Ignoring SyncUUID packet!\n");
 
-	return TRUE;
+	return true;
 }
 
-enum receive_bitmap_ret { OK, DONE, FAILED };
-
-static enum receive_bitmap_ret
+/**
+ * receive_bitmap_plain
+ *
+ * Return 0 when done, 1 when another iteration is needed, and a negative error
+ * code upon failure.
+ */
+static int
 receive_bitmap_plain(struct drbd_conf *mdev, unsigned int data_size,
 		     unsigned long *buffer, struct bm_xfer_ctx *c)
 {
 	unsigned num_words = min_t(size_t, BM_PACKET_WORDS, c->bm_words - c->word_offset);
 	unsigned want = num_words * sizeof(long);
+	int err;
 
 	if (want != data_size) {
 		dev_err(DEV, "%s:want (%u) != data_size (%u)\n", __func__, want, data_size);
-		return FAILED;
+		return -EIO;
 	}
 	if (want == 0)
-		return DONE;
-	if (drbd_recv(mdev, buffer, want) != want)
-		return FAILED;
+		return 0;
+	err = drbd_recv(mdev, buffer, want);
+	if (err != want) {
+		if (err >= 0)
+			err = -EIO;
+		return err;
+	}
 
 	drbd_bm_merge_lel(mdev, c->word_offset, num_words, buffer);
 
@@ -3303,10 +3381,16 @@ receive_bitmap_plain(struct drbd_conf *mdev, unsigned int data_size,
 	if (c->bit_offset > c->bm_bits)
 		c->bit_offset = c->bm_bits;
 
-	return OK;
+	return 1;
 }
 
-static enum receive_bitmap_ret
+/**
+ * recv_bm_rle_bits
+ *
+ * Return 0 when done, 1 when another iteration is needed, and a negative error
+ * code upon failure.
+ */
+static int
 recv_bm_rle_bits(struct drbd_conf *mdev,
 		struct p_compressed_bm *p,
 		struct bm_xfer_ctx *c)
@@ -3326,18 +3410,18 @@ recv_bm_rle_bits(struct drbd_conf *mdev,
 
 	bits = bitstream_get_bits(&bs, &look_ahead, 64);
 	if (bits < 0)
-		return FAILED;
+		return -EIO;
 
 	for (have = bits; have > 0; s += rl, toggle = !toggle) {
 		bits = vli_decode_bits(&rl, look_ahead);
 		if (bits <= 0)
-			return FAILED;
+			return -EIO;
 
 		if (toggle) {
 			e = s + rl -1;
 			if (e >= c->bm_bits) {
 				dev_err(DEV, "bitmap overflow (e:%lu) while decoding bm RLE packet\n", e);
-				return FAILED;
+				return -EIO;
 			}
 			_drbd_bm_set_bits(mdev, s, e);
 		}
@@ -3347,14 +3431,14 @@ recv_bm_rle_bits(struct drbd_conf *mdev,
 				have, bits, look_ahead,
 				(unsigned int)(bs.cur.b - p->code),
 				(unsigned int)bs.buf_len);
-			return FAILED;
+			return -EIO;
 		}
 		look_ahead >>= bits;
 		have -= bits;
 
 		bits = bitstream_get_bits(&bs, &tmp, 64 - have);
 		if (bits < 0)
-			return FAILED;
+			return -EIO;
 		look_ahead |= tmp << have;
 		have += bits;
 	}
@@ -3362,10 +3446,16 @@ recv_bm_rle_bits(struct drbd_conf *mdev,
 	c->bit_offset = s;
 	bm_xfer_ctx_bit_to_word_offset(c);
 
-	return (s == c->bm_bits) ? DONE : OK;
+	return (s != c->bm_bits);
 }
 
-static enum receive_bitmap_ret
+/**
+ * decode_bitmap_c
+ *
+ * Return 0 when done, 1 when another iteration is needed, and a negative error
+ * code upon failure.
+ */
+static int
 decode_bitmap_c(struct drbd_conf *mdev,
 		struct p_compressed_bm *p,
 		struct bm_xfer_ctx *c)
@@ -3379,7 +3469,7 @@ decode_bitmap_c(struct drbd_conf *mdev,
 
 	dev_err(DEV, "receive_bitmap_c: unknown encoding %u\n", p->encoding);
 	drbd_force_state(mdev, NS(conn, C_PROTOCOL_ERROR));
-	return FAILED;
+	return -EIO;
 }
 
 void INFO_bm_xfer_stats(struct drbd_conf *mdev,
@@ -3428,13 +3518,13 @@ static int receive_bitmap(struct drbd_conf *mdev, enum drbd_packets cmd, unsigne
 {
 	struct bm_xfer_ctx c;
 	void *buffer;
-	enum receive_bitmap_ret ret;
-	int ok = FALSE;
+	int err;
+	int ok = false;
 	struct p_header80 *h = &mdev->data.rbuf.header.h80;
 
-	wait_event(mdev->misc_wait, !atomic_read(&mdev->ap_bio_cnt));
-
-	drbd_bm_lock(mdev, "receive bitmap");
+	drbd_bm_lock(mdev, "receive bitmap", BM_LOCKED_SET_ALLOWED);
+	/* you are supposed to send additional out-of-sync information
+	 * if you actually set bits during this phase */
 
 	/* maybe we should use some per thread scratch page,
 	 * and allocate that during initial device creation? */
@@ -3449,9 +3539,9 @@ static int receive_bitmap(struct drbd_conf *mdev, enum drbd_packets cmd, unsigne
 		.bm_words = drbd_bm_words(mdev),
 	};
 
-	do {
+	for(;;) {
 		if (cmd == P_BITMAP) {
-			ret = receive_bitmap_plain(mdev, data_size, buffer, &c);
+			err = receive_bitmap_plain(mdev, data_size, buffer, &c);
 		} else if (cmd == P_COMPRESSED_BITMAP) {
 			/* MAYBE: sanity check that we speak proto >= 90,
 			 * and the feature is enabled! */
@@ -3468,9 +3558,9 @@ static int receive_bitmap(struct drbd_conf *mdev, enum drbd_packets cmd, unsigne
 				goto out;
 			if (data_size <= (sizeof(*p) - sizeof(p->head))) {
 				dev_err(DEV, "ReportCBitmap packet too small (l:%u)\n", data_size);
-				return FAILED;
+				goto out;
 			}
-			ret = decode_bitmap_c(mdev, p, &c);
+			err = decode_bitmap_c(mdev, p, &c);
 		} else {
 			dev_warn(DEV, "receive_bitmap: cmd neither ReportBitMap nor ReportCBitMap (is 0x%x)", cmd);
 			goto out;
@@ -3479,24 +3569,26 @@ static int receive_bitmap(struct drbd_conf *mdev, enum drbd_packets cmd, unsigne
 		c.packets[cmd == P_BITMAP]++;
 		c.bytes[cmd == P_BITMAP] += sizeof(struct p_header80) + data_size;
 
-		if (ret != OK)
+		if (err <= 0) {
+			if (err < 0)
+				goto out;
 			break;
-
+		}
 		if (!drbd_recv_header(mdev, &cmd, &data_size))
 			goto out;
-	} while (ret == OK);
-	if (ret == FAILED)
-		goto out;
+	}
 
 	INFO_bm_xfer_stats(mdev, "receive", &c);
 
 	if (mdev->state.conn == C_WF_BITMAP_T) {
+		enum drbd_state_rv rv;
+
 		ok = !drbd_send_bitmap(mdev);
 		if (!ok)
 			goto out;
 		/* Omit CS_ORDERED with this state transition to avoid deadlocks. */
-		ok = _drbd_request_state(mdev, NS(conn, C_WF_SYNC_UUID), CS_VERBOSE);
-		D_ASSERT(ok == SS_SUCCESS);
+		rv = _drbd_request_state(mdev, NS(conn, C_WF_SYNC_UUID), CS_VERBOSE);
+		D_ASSERT(rv == SS_SUCCESS);
 	} else if (mdev->state.conn != C_WF_BITMAP_S) {
 		/* admin may have requested C_DISCONNECTING,
 		 * other threads may have noticed network errors */
@@ -3504,7 +3596,7 @@ static int receive_bitmap(struct drbd_conf *mdev, enum drbd_packets cmd, unsigne
 		    drbd_conn_str(mdev->state.conn));
 	}
 
-	ok = TRUE;
+	ok = true;
  out:
 	drbd_bm_unlock(mdev);
 	if (ok && mdev->state.conn == C_WF_BITMAP_S)
@@ -3538,7 +3630,26 @@ static int receive_UnplugRemote(struct drbd_conf *mdev, enum drbd_packets cmd, u
 	 * with the data requests being unplugged */
 	drbd_tcp_quickack(mdev->data.socket);
 
-	return TRUE;
+	return true;
+}
+
+static int receive_out_of_sync(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned int data_size)
+{
+	struct p_block_desc *p = &mdev->data.rbuf.block_desc;
+
+	switch (mdev->state.conn) {
+	case C_WF_SYNC_UUID:
+	case C_WF_BITMAP_T:
+	case C_BEHIND:
+			break;
+	default:
+		dev_err(DEV, "ASSERT FAILED cstate = %s, expected: WFSyncUUID|WFBitMapT|Behind\n",
+				drbd_conn_str(mdev->state.conn));
+	}
+
+	drbd_set_out_of_sync(mdev, be64_to_cpu(p->sector), be32_to_cpu(p->blksize));
+
+	return true;
 }
 
 typedef int (*drbd_cmd_handler_f)(struct drbd_conf *, enum drbd_packets cmd, unsigned int to_receive);
@@ -3571,6 +3682,7 @@ static struct data_cmd drbd_cmd_handler[] = {
 	[P_OV_REPLY]        = { 1, sizeof(struct p_block_req), receive_DataRequest },
 	[P_CSUM_RS_REQUEST] = { 1, sizeof(struct p_block_req), receive_DataRequest },
 	[P_DELAY_PROBE]     = { 0, sizeof(struct p_delay_probe93), receive_skip },
+	[P_OUT_OF_SYNC]     = { 0, sizeof(struct p_block_desc), receive_out_of_sync },
 	/* anything missing from this table is in
 	 * the asender_tbl, see get_asender_cmd */
 	[P_MAX_CMD]	    = { 0, 0, NULL },
@@ -3610,7 +3722,8 @@ static void drbdd(struct drbd_conf *mdev)
 		if (shs) {
 			rv = drbd_recv(mdev, &header->h80.payload, shs);
 			if (unlikely(rv != shs)) {
-				dev_err(DEV, "short read while reading sub header: rv=%d\n", rv);
+				if (!signal_pending(current))
+					dev_warn(DEV, "short read while reading sub header: rv=%d\n", rv);
 				goto err_out;
 			}
 		}
@@ -3682,9 +3795,6 @@ static void drbd_disconnect(struct drbd_conf *mdev)
 
 	if (mdev->state.conn == C_STANDALONE)
 		return;
-	if (mdev->state.conn >= C_WF_CONNECTION)
-		dev_err(DEV, "ASSERT FAILED cstate = %s, expected < WFConnection\n",
-				drbd_conn_str(mdev->state.conn));
 
 	/* asender does not clean up anything. it must not interfere, either */
 	drbd_thread_stop(&mdev->asender);
@@ -3713,6 +3823,8 @@ static void drbd_disconnect(struct drbd_conf *mdev)
 	atomic_set(&mdev->rs_pending_cnt, 0);
 	wake_up(&mdev->misc_wait);
 
+	del_timer(&mdev->request_timer);
+
 	/* make sure syncer is stopped and w_resume_next_sg queued */
 	del_timer_sync(&mdev->resync_timer);
 	resync_timer_fn((unsigned long)mdev);
@@ -3758,13 +3870,6 @@ static void drbd_disconnect(struct drbd_conf *mdev)
 	if (os.conn == C_DISCONNECTING) {
 		wait_event(mdev->net_cnt_wait, atomic_read(&mdev->net_cnt) == 0);
 
-		if (!is_susp(mdev->state)) {
-			/* we must not free the tl_hash
-			 * while application io is still on the fly */
-			wait_event(mdev->misc_wait, !atomic_read(&mdev->ap_bio_cnt));
-			drbd_free_tl_hash(mdev);
-		}
-
 		crypto_free_hash(mdev->cram_hmac_tfm);
 		mdev->cram_hmac_tfm = NULL;
 
@@ -3773,6 +3878,10 @@ static void drbd_disconnect(struct drbd_conf *mdev)
 		drbd_request_state(mdev, NS(conn, C_STANDALONE));
 	}
 
+	/* serialize with bitmap writeout triggered by the state change,
+	 * if any. */
+	wait_event(mdev->misc_wait, !test_bit(BITMAP_IO, &mdev->flags));
+
 	/* tcp_close and release of sendpage pages can be deferred.  I don't
 	 * want to use SO_LINGER, because apparently it can be deferred for
 	 * more than 20 seconds (longest time I checked).
@@ -3873,7 +3982,8 @@ static int drbd_do_handshake(struct drbd_conf *mdev)
 	rv = drbd_recv(mdev, &p->head.payload, expect);
 
 	if (rv != expect) {
-		dev_err(DEV, "short read receiving handshake packet: l=%u\n", rv);
+		if (!signal_pending(current))
+			dev_warn(DEV, "short read receiving handshake packet: l=%u\n", rv);
 		return 0;
 	}
 
@@ -3975,7 +4085,8 @@ static int drbd_do_auth(struct drbd_conf *mdev)
 	rv = drbd_recv(mdev, peers_ch, length);
 
 	if (rv != length) {
-		dev_err(DEV, "short read AuthChallenge: l=%u\n", rv);
+		if (!signal_pending(current))
+			dev_warn(DEV, "short read AuthChallenge: l=%u\n", rv);
 		rv = 0;
 		goto fail;
 	}
@@ -4022,7 +4133,8 @@ static int drbd_do_auth(struct drbd_conf *mdev)
 	rv = drbd_recv(mdev, response , resp_size);
 
 	if (rv != resp_size) {
-		dev_err(DEV, "short read receiving AuthResponse: l=%u\n", rv);
+		if (!signal_pending(current))
+			dev_warn(DEV, "short read receiving AuthResponse: l=%u\n", rv);
 		rv = 0;
 		goto fail;
 	}
@@ -4074,8 +4186,7 @@ int drbdd_init(struct drbd_thread *thi)
 		h = drbd_connect(mdev);
 		if (h == 0) {
 			drbd_disconnect(mdev);
-			__set_current_state(TASK_INTERRUPTIBLE);
-			schedule_timeout(HZ);
+			schedule_timeout_interruptible(HZ);
 		}
 		if (h == -1) {
 			dev_warn(DEV, "Discarding network configuration.\n");
@@ -4113,7 +4224,7 @@ static int got_RqSReply(struct drbd_conf *mdev, struct p_header80 *h)
 	}
 	wake_up(&mdev->state_wait);
 
-	return TRUE;
+	return true;
 }
 
 static int got_Ping(struct drbd_conf *mdev, struct p_header80 *h)
@@ -4129,7 +4240,7 @@ static int got_PingAck(struct drbd_conf *mdev, struct p_header80 *h)
 	if (!test_and_set_bit(GOT_PING_ACK, &mdev->flags))
 		wake_up(&mdev->misc_wait);
 
-	return TRUE;
+	return true;
 }
 
 static int got_IsInSync(struct drbd_conf *mdev, struct p_header80 *h)
@@ -4152,7 +4263,7 @@ static int got_IsInSync(struct drbd_conf *mdev, struct p_header80 *h)
 	dec_rs_pending(mdev);
 	atomic_add(blksize >> 9, &mdev->rs_sect_in);
 
-	return TRUE;
+	return true;
 }
 
 /* when we receive the ACK for a write request,
@@ -4176,8 +4287,6 @@ static struct drbd_request *_ack_id_to_req(struct drbd_conf *mdev,
 			return req;
 		}
 	}
-	dev_err(DEV, "_ack_id_to_req: failed to find req %p, sector %llus in list\n",
-		(void *)(unsigned long)id, (unsigned long long)sector);
 	return NULL;
 }
 
@@ -4195,15 +4304,17 @@ static int validate_req_change_req_state(struct drbd_conf *mdev,
 	req = validator(mdev, id, sector);
 	if (unlikely(!req)) {
 		spin_unlock_irq(&mdev->req_lock);
-		dev_err(DEV, "%s: got a corrupt block_id/sector pair\n", func);
-		return FALSE;
+
+		dev_err(DEV, "%s: failed to find req %p, sector %llus\n", func,
+			(void *)(unsigned long)id, (unsigned long long)sector);
+		return false;
 	}
 	__req_mod(req, what, &m);
 	spin_unlock_irq(&mdev->req_lock);
 
 	if (m.bio)
 		complete_master_bio(mdev, &m);
-	return TRUE;
+	return true;
 }
 
 static int got_BlockAck(struct drbd_conf *mdev, struct p_header80 *h)
@@ -4218,7 +4329,7 @@ static int got_BlockAck(struct drbd_conf *mdev, struct p_header80 *h)
 	if (is_syncer_block_id(p->block_id)) {
 		drbd_set_in_sync(mdev, sector, blksize);
 		dec_rs_pending(mdev);
-		return TRUE;
+		return true;
 	}
 	switch (be16_to_cpu(h->command)) {
 	case P_RS_WRITE_ACK:
@@ -4239,7 +4350,7 @@ static int got_BlockAck(struct drbd_conf *mdev, struct p_header80 *h)
 		break;
 	default:
 		D_ASSERT(0);
-		return FALSE;
+		return false;
 	}
 
 	return validate_req_change_req_state(mdev, p->block_id, sector,
@@ -4250,20 +4361,44 @@ static int got_NegAck(struct drbd_conf *mdev, struct p_header80 *h)
 {
 	struct p_block_ack *p = (struct p_block_ack *)h;
 	sector_t sector = be64_to_cpu(p->sector);
-
-	if (__ratelimit(&drbd_ratelimit_state))
-		dev_warn(DEV, "Got NegAck packet. Peer is in troubles?\n");
+	int size = be32_to_cpu(p->blksize);
+	struct drbd_request *req;
+	struct bio_and_error m;
 
 	update_peer_seq(mdev, be32_to_cpu(p->seq_num));
 
 	if (is_syncer_block_id(p->block_id)) {
-		int size = be32_to_cpu(p->blksize);
 		dec_rs_pending(mdev);
 		drbd_rs_failed_io(mdev, sector, size);
-		return TRUE;
+		return true;
 	}
-	return validate_req_change_req_state(mdev, p->block_id, sector,
-		_ack_id_to_req, __func__ , neg_acked);
+
+	spin_lock_irq(&mdev->req_lock);
+	req = _ack_id_to_req(mdev, p->block_id, sector);
+	if (!req) {
+		spin_unlock_irq(&mdev->req_lock);
+		if (mdev->net_conf->wire_protocol == DRBD_PROT_A ||
+		    mdev->net_conf->wire_protocol == DRBD_PROT_B) {
+			/* Protocol A has no P_WRITE_ACKs, but has P_NEG_ACKs.
+			   The master bio might already be completed, therefore the
+			   request is no longer in the collision hash.
+			   => Do not try to validate block_id as request. */
+			/* In Protocol B we might already have got a P_RECV_ACK
+			   but then get a P_NEG_ACK after wards. */
+			drbd_set_out_of_sync(mdev, sector, size);
+			return true;
+		} else {
+			dev_err(DEV, "%s: failed to find req %p, sector %llus\n", __func__,
+				(void *)(unsigned long)p->block_id, (unsigned long long)sector);
+			return false;
+		}
+	}
+	__req_mod(req, neg_acked, &m);
+	spin_unlock_irq(&mdev->req_lock);
+
+	if (m.bio)
+		complete_master_bio(mdev, &m);
+	return true;
 }
 
 static int got_NegDReply(struct drbd_conf *mdev, struct p_header80 *h)
@@ -4294,11 +4429,20 @@ static int got_NegRSDReply(struct drbd_conf *mdev, struct p_header80 *h)
 
 	if (get_ldev_if_state(mdev, D_FAILED)) {
 		drbd_rs_complete_io(mdev, sector);
-		drbd_rs_failed_io(mdev, sector, size);
+		switch (be16_to_cpu(h->command)) {
+		case P_NEG_RS_DREPLY:
+			drbd_rs_failed_io(mdev, sector, size);
+		case P_RS_CANCEL:
+			break;
+		default:
+			D_ASSERT(0);
+			put_ldev(mdev);
+			return false;
+		}
 		put_ldev(mdev);
 	}
 
-	return TRUE;
+	return true;
 }
 
 static int got_BarrierAck(struct drbd_conf *mdev, struct p_header80 *h)
@@ -4307,7 +4451,14 @@ static int got_BarrierAck(struct drbd_conf *mdev, struct p_header80 *h)
 
 	tl_release(mdev, p->barrier, be32_to_cpu(p->set_size));
 
-	return TRUE;
+	if (mdev->state.conn == C_AHEAD &&
+	    atomic_read(&mdev->ap_in_flight) == 0 &&
+	    !test_and_set_bit(AHEAD_TO_SYNC_SOURCE, &mdev->current_epoch->flags)) {
+		mdev->start_resync_timer.expires = jiffies + HZ;
+		add_timer(&mdev->start_resync_timer);
+	}
+
+	return true;
 }
 
 static int got_OVResult(struct drbd_conf *mdev, struct p_header80 *h)
@@ -4328,12 +4479,18 @@ static int got_OVResult(struct drbd_conf *mdev, struct p_header80 *h)
 		ov_oos_print(mdev);
 
 	if (!get_ldev(mdev))
-		return TRUE;
+		return true;
 
 	drbd_rs_complete_io(mdev, sector);
 	dec_rs_pending(mdev);
 
-	if (--mdev->ov_left == 0) {
+	--mdev->ov_left;
+
+	/* let's advance progress step marks only for every other megabyte */
+	if ((mdev->ov_left & 0x200) == 0x200)
+		drbd_advance_rs_marks(mdev, mdev->ov_left);
+
+	if (mdev->ov_left == 0) {
 		w = kmalloc(sizeof(*w), GFP_NOIO);
 		if (w) {
 			w->cb = w_ov_finished;
@@ -4345,12 +4502,12 @@ static int got_OVResult(struct drbd_conf *mdev, struct p_header80 *h)
 		}
 	}
 	put_ldev(mdev);
-	return TRUE;
+	return true;
 }
 
 static int got_skip(struct drbd_conf *mdev, struct p_header80 *h)
 {
-	return TRUE;
+	return true;
 }
 
 struct asender_cmd {
@@ -4378,6 +4535,7 @@ static struct asender_cmd *get_asender_cmd(int cmd)
 	[P_STATE_CHG_REPLY] = { sizeof(struct p_req_state_reply), got_RqSReply },
 	[P_RS_IS_IN_SYNC]   = { sizeof(struct p_block_ack), got_IsInSync },
 	[P_DELAY_PROBE]     = { sizeof(struct p_delay_probe93), got_skip },
+	[P_RS_CANCEL]       = { sizeof(struct p_block_ack), got_NegRSDReply},
 	[P_MAX_CMD]	    = { 0, NULL },
 	};
 	if (cmd > P_MAX_CMD || asender_tbl[cmd].process == NULL)
diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c
index ad3fc6228f27..5c0c8be1bb0a 100644
--- a/drivers/block/drbd/drbd_req.c
+++ b/drivers/block/drbd/drbd_req.c
@@ -140,9 +140,14 @@ static void _about_to_complete_local_write(struct drbd_conf *mdev,
 	struct hlist_node *n;
 	struct hlist_head *slot;
 
-	/* before we can signal completion to the upper layers,
-	 * we may need to close the current epoch */
+	/* Before we can signal completion to the upper layers,
+	 * we may need to close the current epoch.
+	 * We can skip this, if this request has not even been sent, because we
+	 * did not have a fully established connection yet/anymore, during
+	 * bitmap exchange, or while we are C_AHEAD due to congestion policy.
+	 */
 	if (mdev->state.conn >= C_CONNECTED &&
+	    (s & RQ_NET_SENT) != 0 &&
 	    req->epoch == mdev->newest_tle->br_number)
 		queue_barrier(mdev);
 
@@ -440,7 +445,7 @@ int __req_mod(struct drbd_request *req, enum drbd_req_event what,
 		req->rq_state |= RQ_LOCAL_COMPLETED;
 		req->rq_state &= ~RQ_LOCAL_PENDING;
 
-		__drbd_chk_io_error(mdev, FALSE);
+		__drbd_chk_io_error(mdev, false);
 		_req_may_be_done_not_susp(req, m);
 		put_ldev(mdev);
 		break;
@@ -461,7 +466,7 @@ int __req_mod(struct drbd_request *req, enum drbd_req_event what,
 
 		D_ASSERT(!(req->rq_state & RQ_NET_MASK));
 
-		__drbd_chk_io_error(mdev, FALSE);
+		__drbd_chk_io_error(mdev, false);
 		put_ldev(mdev);
 
 		/* no point in retrying if there is no good remote data,
@@ -545,6 +550,14 @@ int __req_mod(struct drbd_request *req, enum drbd_req_event what,
 
 		break;
 
+	case queue_for_send_oos:
+		req->rq_state |= RQ_NET_QUEUED;
+		req->w.cb =  w_send_oos;
+		drbd_queue_work(&mdev->data.work, &req->w);
+		break;
+
+	case oos_handed_to_network:
+		/* actually the same */
 	case send_canceled:
 		/* treat it the same */
 	case send_failed:
@@ -558,6 +571,9 @@ int __req_mod(struct drbd_request *req, enum drbd_req_event what,
 
 	case handed_over_to_network:
 		/* assert something? */
+		if (bio_data_dir(req->master_bio) == WRITE)
+			atomic_add(req->size>>9, &mdev->ap_in_flight);
+
 		if (bio_data_dir(req->master_bio) == WRITE &&
 		    mdev->net_conf->wire_protocol == DRBD_PROT_A) {
 			/* this is what is dangerous about protocol A:
@@ -591,6 +607,9 @@ int __req_mod(struct drbd_request *req, enum drbd_req_event what,
 			dec_ap_pending(mdev);
 		req->rq_state &= ~(RQ_NET_OK|RQ_NET_PENDING);
 		req->rq_state |= RQ_NET_DONE;
+		if (req->rq_state & RQ_NET_SENT && req->rq_state & RQ_WRITE)
+			atomic_sub(req->size>>9, &mdev->ap_in_flight);
+
 		/* if it is still queued, we may not complete it here.
 		 * it will be canceled soon. */
 		if (!(req->rq_state & RQ_NET_QUEUED))
@@ -628,14 +647,17 @@ int __req_mod(struct drbd_request *req, enum drbd_req_event what,
 		req->rq_state |= RQ_NET_OK;
 		D_ASSERT(req->rq_state & RQ_NET_PENDING);
 		dec_ap_pending(mdev);
+		atomic_sub(req->size>>9, &mdev->ap_in_flight);
 		req->rq_state &= ~RQ_NET_PENDING;
 		_req_may_be_done_not_susp(req, m);
 		break;
 
 	case neg_acked:
 		/* assert something? */
-		if (req->rq_state & RQ_NET_PENDING)
+		if (req->rq_state & RQ_NET_PENDING) {
 			dec_ap_pending(mdev);
+			atomic_sub(req->size>>9, &mdev->ap_in_flight);
+		}
 		req->rq_state &= ~(RQ_NET_OK|RQ_NET_PENDING);
 
 		req->rq_state |= RQ_NET_DONE;
@@ -690,8 +712,11 @@ int __req_mod(struct drbd_request *req, enum drbd_req_event what,
 			dev_err(DEV, "FIXME (barrier_acked but pending)\n");
 			list_move(&req->tl_requests, &mdev->out_of_sequence_requests);
 		}
-		D_ASSERT(req->rq_state & RQ_NET_SENT);
-		req->rq_state |= RQ_NET_DONE;
+		if ((req->rq_state & RQ_NET_MASK) != 0) {
+			req->rq_state |= RQ_NET_DONE;
+			if (mdev->net_conf->wire_protocol == DRBD_PROT_A)
+				atomic_sub(req->size>>9, &mdev->ap_in_flight);
+		}
 		_req_may_be_done(req, m); /* Allowed while state.susp */
 		break;
 
@@ -738,14 +763,14 @@ static int drbd_may_do_local_read(struct drbd_conf *mdev, sector_t sector, int s
 	return 0 == drbd_bm_count_bits(mdev, sbnr, ebnr);
 }
 
-static int drbd_make_request_common(struct drbd_conf *mdev, struct bio *bio)
+static int drbd_make_request_common(struct drbd_conf *mdev, struct bio *bio, unsigned long start_time)
 {
 	const int rw = bio_rw(bio);
 	const int size = bio->bi_size;
 	const sector_t sector = bio->bi_sector;
 	struct drbd_tl_epoch *b = NULL;
 	struct drbd_request *req;
-	int local, remote;
+	int local, remote, send_oos = 0;
 	int err = -EIO;
 	int ret = 0;
 
@@ -759,6 +784,7 @@ static int drbd_make_request_common(struct drbd_conf *mdev, struct bio *bio)
 		bio_endio(bio, -ENOMEM);
 		return 0;
 	}
+	req->start_time = start_time;
 
 	local = get_ldev(mdev);
 	if (!local) {
@@ -808,9 +834,9 @@ static int drbd_make_request_common(struct drbd_conf *mdev, struct bio *bio)
 		drbd_al_begin_io(mdev, sector);
 	}
 
-	remote = remote && (mdev->state.pdsk == D_UP_TO_DATE ||
-			    (mdev->state.pdsk == D_INCONSISTENT &&
-			     mdev->state.conn >= C_CONNECTED));
+	remote = remote && drbd_should_do_remote(mdev->state);
+	send_oos = rw == WRITE && drbd_should_send_oos(mdev->state);
+	D_ASSERT(!(remote && send_oos));
 
 	if (!(local || remote) && !is_susp(mdev->state)) {
 		if (__ratelimit(&drbd_ratelimit_state))
@@ -824,7 +850,7 @@ static int drbd_make_request_common(struct drbd_conf *mdev, struct bio *bio)
 	 * but there is a race between testing the bit and pointer outside the
 	 * spinlock, and grabbing the spinlock.
 	 * if we lost that race, we retry.  */
-	if (rw == WRITE && remote &&
+	if (rw == WRITE && (remote || send_oos) &&
 	    mdev->unused_spare_tle == NULL &&
 	    test_bit(CREATE_BARRIER, &mdev->flags)) {
 allocate_barrier:
@@ -842,18 +868,19 @@ allocate_barrier:
 	if (is_susp(mdev->state)) {
 		/* If we got suspended, use the retry mechanism of
 		   generic_make_request() to restart processing of this
-		   bio. In the next call to drbd_make_request_26
+		   bio. In the next call to drbd_make_request
 		   we sleep in inc_ap_bio() */
 		ret = 1;
 		spin_unlock_irq(&mdev->req_lock);
 		goto fail_free_complete;
 	}
 
-	if (remote) {
-		remote = (mdev->state.pdsk == D_UP_TO_DATE ||
-			    (mdev->state.pdsk == D_INCONSISTENT &&
-			     mdev->state.conn >= C_CONNECTED));
-		if (!remote)
+	if (remote || send_oos) {
+		remote = drbd_should_do_remote(mdev->state);
+		send_oos = rw == WRITE && drbd_should_send_oos(mdev->state);
+		D_ASSERT(!(remote && send_oos));
+
+		if (!(remote || send_oos))
 			dev_warn(DEV, "lost connection while grabbing the req_lock!\n");
 		if (!(local || remote)) {
 			dev_err(DEV, "IO ERROR: neither local nor remote disk\n");
@@ -866,7 +893,7 @@ allocate_barrier:
 		mdev->unused_spare_tle = b;
 		b = NULL;
 	}
-	if (rw == WRITE && remote &&
+	if (rw == WRITE && (remote || send_oos) &&
 	    mdev->unused_spare_tle == NULL &&
 	    test_bit(CREATE_BARRIER, &mdev->flags)) {
 		/* someone closed the current epoch
@@ -889,7 +916,7 @@ allocate_barrier:
 	 * barrier packet.  To get the write ordering right, we only have to
 	 * make sure that, if this is a write request and it triggered a
 	 * barrier packet, this request is queued within the same spinlock. */
-	if (remote && mdev->unused_spare_tle &&
+	if ((remote || send_oos) && mdev->unused_spare_tle &&
 	    test_and_clear_bit(CREATE_BARRIER, &mdev->flags)) {
 		_tl_add_barrier(mdev, mdev->unused_spare_tle);
 		mdev->unused_spare_tle = NULL;
@@ -937,6 +964,34 @@ allocate_barrier:
 				? queue_for_net_write
 				: queue_for_net_read);
 	}
+	if (send_oos && drbd_set_out_of_sync(mdev, sector, size))
+		_req_mod(req, queue_for_send_oos);
+
+	if (remote &&
+	    mdev->net_conf->on_congestion != OC_BLOCK && mdev->agreed_pro_version >= 96) {
+		int congested = 0;
+
+		if (mdev->net_conf->cong_fill &&
+		    atomic_read(&mdev->ap_in_flight) >= mdev->net_conf->cong_fill) {
+			dev_info(DEV, "Congestion-fill threshold reached\n");
+			congested = 1;
+		}
+
+		if (mdev->act_log->used >= mdev->net_conf->cong_extents) {
+			dev_info(DEV, "Congestion-extents threshold reached\n");
+			congested = 1;
+		}
+
+		if (congested) {
+			queue_barrier(mdev); /* last barrier, after mirrored writes */
+
+			if (mdev->net_conf->on_congestion == OC_PULL_AHEAD)
+				_drbd_set_state(_NS(mdev, conn, C_AHEAD), 0, NULL);
+			else  /*mdev->net_conf->on_congestion == OC_DISCONNECT */
+				_drbd_set_state(_NS(mdev, conn, C_DISCONNECTING), 0, NULL);
+		}
+	}
+
 	spin_unlock_irq(&mdev->req_lock);
 	kfree(b); /* if someone else has beaten us to it... */
 
@@ -949,9 +1004,9 @@ allocate_barrier:
 		 * stable storage, and this is a WRITE, we may not even submit
 		 * this bio. */
 		if (get_ldev(mdev)) {
-			if (FAULT_ACTIVE(mdev, rw == WRITE ? DRBD_FAULT_DT_WR
-					     : rw == READ  ? DRBD_FAULT_DT_RD
-					     :               DRBD_FAULT_DT_RA))
+			if (drbd_insert_fault(mdev,   rw == WRITE ? DRBD_FAULT_DT_WR
+						    : rw == READ  ? DRBD_FAULT_DT_RD
+						    :               DRBD_FAULT_DT_RA))
 				bio_endio(req->private_bio, -EIO);
 			else
 				generic_make_request(req->private_bio);
@@ -1018,16 +1073,19 @@ static int drbd_fail_request_early(struct drbd_conf *mdev, int is_write)
 	return 0;
 }
 
-int drbd_make_request_26(struct request_queue *q, struct bio *bio)
+int drbd_make_request(struct request_queue *q, struct bio *bio)
 {
 	unsigned int s_enr, e_enr;
 	struct drbd_conf *mdev = (struct drbd_conf *) q->queuedata;
+	unsigned long start_time;
 
 	if (drbd_fail_request_early(mdev, bio_data_dir(bio) & WRITE)) {
 		bio_endio(bio, -EPERM);
 		return 0;
 	}
 
+	start_time = jiffies;
+
 	/*
 	 * what we "blindly" assume:
 	 */
@@ -1042,12 +1100,12 @@ int drbd_make_request_26(struct request_queue *q, struct bio *bio)
 
 	if (likely(s_enr == e_enr)) {
 		inc_ap_bio(mdev, 1);
-		return drbd_make_request_common(mdev, bio);
+		return drbd_make_request_common(mdev, bio, start_time);
 	}
 
 	/* can this bio be split generically?
 	 * Maybe add our own split-arbitrary-bios function. */
-	if (bio->bi_vcnt != 1 || bio->bi_idx != 0 || bio->bi_size > DRBD_MAX_SEGMENT_SIZE) {
+	if (bio->bi_vcnt != 1 || bio->bi_idx != 0 || bio->bi_size > DRBD_MAX_BIO_SIZE) {
 		/* rather error out here than BUG in bio_split */
 		dev_err(DEV, "bio would need to, but cannot, be split: "
 		    "(vcnt=%u,idx=%u,size=%u,sector=%llu)\n",
@@ -1069,11 +1127,7 @@ int drbd_make_request_26(struct request_queue *q, struct bio *bio)
 		const int sps = 1 << HT_SHIFT; /* sectors per slot */
 		const int mask = sps - 1;
 		const sector_t first_sectors = sps - (sect & mask);
-		bp = bio_split(bio,
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,28)
-				bio_split_pool,
-#endif
-				first_sectors);
+		bp = bio_split(bio, first_sectors);
 
 		/* we need to get a "reference count" (ap_bio_cnt)
 		 * to avoid races with the disconnect/reconnect/suspend code.
@@ -1084,10 +1138,10 @@ int drbd_make_request_26(struct request_queue *q, struct bio *bio)
 
 		D_ASSERT(e_enr == s_enr + 1);
 
-		while (drbd_make_request_common(mdev, &bp->bio1))
+		while (drbd_make_request_common(mdev, &bp->bio1, start_time))
 			inc_ap_bio(mdev, 1);
 
-		while (drbd_make_request_common(mdev, &bp->bio2))
+		while (drbd_make_request_common(mdev, &bp->bio2, start_time))
 			inc_ap_bio(mdev, 1);
 
 		dec_ap_bio(mdev);
@@ -1098,7 +1152,7 @@ int drbd_make_request_26(struct request_queue *q, struct bio *bio)
 }
 
 /* This is called by bio_add_page().  With this function we reduce
- * the number of BIOs that span over multiple DRBD_MAX_SEGMENT_SIZEs
+ * the number of BIOs that span over multiple DRBD_MAX_BIO_SIZEs
  * units (was AL_EXTENTs).
  *
  * we do the calculation within the lower 32bit of the byte offsets,
@@ -1108,7 +1162,7 @@ int drbd_make_request_26(struct request_queue *q, struct bio *bio)
  * As long as the BIO is empty we have to allow at least one bvec,
  * regardless of size and offset.  so the resulting bio may still
  * cross extent boundaries.  those are dealt with (bio_split) in
- * drbd_make_request_26.
+ * drbd_make_request.
  */
 int drbd_merge_bvec(struct request_queue *q, struct bvec_merge_data *bvm, struct bio_vec *bvec)
 {
@@ -1118,8 +1172,8 @@ int drbd_merge_bvec(struct request_queue *q, struct bvec_merge_data *bvm, struct
 	unsigned int bio_size = bvm->bi_size;
 	int limit, backing_limit;
 
-	limit = DRBD_MAX_SEGMENT_SIZE
-	      - ((bio_offset & (DRBD_MAX_SEGMENT_SIZE-1)) + bio_size);
+	limit = DRBD_MAX_BIO_SIZE
+	      - ((bio_offset & (DRBD_MAX_BIO_SIZE-1)) + bio_size);
 	if (limit < 0)
 		limit = 0;
 	if (bio_size == 0) {
@@ -1136,3 +1190,42 @@ int drbd_merge_bvec(struct request_queue *q, struct bvec_merge_data *bvm, struct
 	}
 	return limit;
 }
+
+void request_timer_fn(unsigned long data)
+{
+	struct drbd_conf *mdev = (struct drbd_conf *) data;
+	struct drbd_request *req; /* oldest request */
+	struct list_head *le;
+	unsigned long et = 0; /* effective timeout = ko_count * timeout */
+
+	if (get_net_conf(mdev)) {
+		et = mdev->net_conf->timeout*HZ/10 * mdev->net_conf->ko_count;
+		put_net_conf(mdev);
+	}
+	if (!et || mdev->state.conn < C_WF_REPORT_PARAMS)
+		return; /* Recurring timer stopped */
+
+	spin_lock_irq(&mdev->req_lock);
+	le = &mdev->oldest_tle->requests;
+	if (list_empty(le)) {
+		spin_unlock_irq(&mdev->req_lock);
+		mod_timer(&mdev->request_timer, jiffies + et);
+		return;
+	}
+
+	le = le->prev;
+	req = list_entry(le, struct drbd_request, tl_requests);
+	if (time_is_before_eq_jiffies(req->start_time + et)) {
+		if (req->rq_state & RQ_NET_PENDING) {
+			dev_warn(DEV, "Remote failed to finish a request within ko-count * timeout\n");
+			_drbd_set_state(_NS(mdev, conn, C_TIMEOUT), CS_VERBOSE, NULL);
+		} else {
+			dev_warn(DEV, "Local backing block device frozen?\n");
+			mod_timer(&mdev->request_timer, jiffies + et);
+		}
+	} else {
+		mod_timer(&mdev->request_timer, req->start_time + et);
+	}
+
+	spin_unlock_irq(&mdev->req_lock);
+}
diff --git a/drivers/block/drbd/drbd_req.h b/drivers/block/drbd/drbd_req.h
index ab2bd09d54b4..32e2c3e6a813 100644
--- a/drivers/block/drbd/drbd_req.h
+++ b/drivers/block/drbd/drbd_req.h
@@ -82,14 +82,16 @@ enum drbd_req_event {
 	to_be_submitted,
 
 	/* XXX yes, now I am inconsistent...
-	 * these two are not "events" but "actions"
+	 * these are not "events" but "actions"
 	 * oh, well... */
 	queue_for_net_write,
 	queue_for_net_read,
+	queue_for_send_oos,
 
 	send_canceled,
 	send_failed,
 	handed_over_to_network,
+	oos_handed_to_network,
 	connection_lost_while_pending,
 	read_retry_remote_canceled,
 	recv_acked_by_peer,
@@ -289,7 +291,6 @@ static inline struct drbd_request *drbd_req_new(struct drbd_conf *mdev,
 		req->epoch       = 0;
 		req->sector      = bio_src->bi_sector;
 		req->size        = bio_src->bi_size;
-		req->start_time  = jiffies;
 		INIT_HLIST_NODE(&req->colision);
 		INIT_LIST_HEAD(&req->tl_requests);
 		INIT_LIST_HEAD(&req->w.list);
@@ -321,6 +322,7 @@ extern int __req_mod(struct drbd_request *req, enum drbd_req_event what,
 		struct bio_and_error *m);
 extern void complete_master_bio(struct drbd_conf *mdev,
 		struct bio_and_error *m);
+extern void request_timer_fn(unsigned long data);
 
 /* use this if you don't want to deal with calling complete_master_bio()
  * outside the spinlock, e.g. when walking some list on cleanup. */
@@ -338,23 +340,43 @@ static inline int _req_mod(struct drbd_request *req, enum drbd_req_event what)
 	return rv;
 }
 
-/* completion of master bio is outside of spinlock.
- * If you need it irqsave, do it your self!
- * Which means: don't use from bio endio callback. */
+/* completion of master bio is outside of our spinlock.
+ * We still may or may not be inside some irqs disabled section
+ * of the lower level driver completion callback, so we need to
+ * spin_lock_irqsave here. */
 static inline int req_mod(struct drbd_request *req,
 		enum drbd_req_event what)
 {
+	unsigned long flags;
 	struct drbd_conf *mdev = req->mdev;
 	struct bio_and_error m;
 	int rv;
 
-	spin_lock_irq(&mdev->req_lock);
+	spin_lock_irqsave(&mdev->req_lock, flags);
 	rv = __req_mod(req, what, &m);
-	spin_unlock_irq(&mdev->req_lock);
+	spin_unlock_irqrestore(&mdev->req_lock, flags);
 
 	if (m.bio)
 		complete_master_bio(mdev, &m);
 
 	return rv;
 }
+
+static inline bool drbd_should_do_remote(union drbd_state s)
+{
+	return s.pdsk == D_UP_TO_DATE ||
+		(s.pdsk >= D_INCONSISTENT &&
+		 s.conn >= C_WF_BITMAP_T &&
+		 s.conn < C_AHEAD);
+	/* Before proto 96 that was >= CONNECTED instead of >= C_WF_BITMAP_T.
+	   That is equivalent since before 96 IO was frozen in the C_WF_BITMAP*
+	   states. */
+}
+static inline bool drbd_should_send_oos(union drbd_state s)
+{
+	return s.conn == C_AHEAD || s.conn == C_WF_BITMAP_S;
+	/* pdsk = D_INCONSISTENT as a consequence. Protocol 96 check not necessary
+	   since we enter state C_AHEAD only if proto >= 96 */
+}
+
 #endif
diff --git a/drivers/block/drbd/drbd_strings.c b/drivers/block/drbd/drbd_strings.c
index 85179e1fb50a..c44a2a602772 100644
--- a/drivers/block/drbd/drbd_strings.c
+++ b/drivers/block/drbd/drbd_strings.c
@@ -48,6 +48,8 @@ static const char *drbd_conn_s_names[] = {
 	[C_PAUSED_SYNC_T]    = "PausedSyncT",
 	[C_VERIFY_S]         = "VerifyS",
 	[C_VERIFY_T]         = "VerifyT",
+	[C_AHEAD]            = "Ahead",
+	[C_BEHIND]           = "Behind",
 };
 
 static const char *drbd_role_s_names[] = {
@@ -92,7 +94,7 @@ static const char *drbd_state_sw_errors[] = {
 const char *drbd_conn_str(enum drbd_conns s)
 {
 	/* enums are unsigned... */
-	return s > C_PAUSED_SYNC_T ? "TOO_LARGE" : drbd_conn_s_names[s];
+	return s > C_BEHIND ? "TOO_LARGE" : drbd_conn_s_names[s];
 }
 
 const char *drbd_role_str(enum drbd_role s)
@@ -105,7 +107,7 @@ const char *drbd_disk_str(enum drbd_disk_state s)
 	return s > D_UP_TO_DATE    ? "TOO_LARGE" : drbd_disk_s_names[s];
 }
 
-const char *drbd_set_st_err_str(enum drbd_state_ret_codes err)
+const char *drbd_set_st_err_str(enum drbd_state_rv err)
 {
 	return err <= SS_AFTER_LAST_ERROR ? "TOO_SMALL" :
 	       err > SS_TWO_PRIMARIES ? "TOO_LARGE"
diff --git a/drivers/block/drbd/drbd_vli.h b/drivers/block/drbd/drbd_vli.h
index fc824006e721..8cb1532a3816 100644
--- a/drivers/block/drbd/drbd_vli.h
+++ b/drivers/block/drbd/drbd_vli.h
@@ -32,7 +32,7 @@
  * the bitmap transfer time can take much too long,
  * if transmitted in plain text.
  *
- * We try to reduce the transfered bitmap information
+ * We try to reduce the transferred bitmap information
  * by encoding runlengths of bit polarity.
  *
  * We never actually need to encode a "zero" (runlengths are positive).
diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c
index e027446590d3..f7e6c92f8d03 100644
--- a/drivers/block/drbd/drbd_worker.c
+++ b/drivers/block/drbd/drbd_worker.c
@@ -39,18 +39,17 @@
 #include "drbd_req.h"
 
 static int w_make_ov_request(struct drbd_conf *mdev, struct drbd_work *w, int cancel);
+static int w_make_resync_request(struct drbd_conf *mdev,
+				 struct drbd_work *w, int cancel);
 
 
 
-/* defined here:
-   drbd_md_io_complete
-   drbd_endio_sec
-   drbd_endio_pri
-
- * more endio handlers:
-   atodb_endio in drbd_actlog.c
-   drbd_bm_async_io_complete in drbd_bitmap.c
-
+/* endio handlers:
+ *   drbd_md_io_complete (defined here)
+ *   drbd_endio_pri (defined here)
+ *   drbd_endio_sec (defined here)
+ *   bm_async_io_complete (defined in drbd_bitmap.c)
+ *
  * For all these callbacks, note the following:
  * The callbacks will be called in irq context by the IDE drivers,
  * and in Softirqs/Tasklets/BH context by the SCSI drivers.
@@ -94,7 +93,7 @@ void drbd_endio_read_sec_final(struct drbd_epoch_entry *e) __releases(local)
 	if (list_empty(&mdev->read_ee))
 		wake_up(&mdev->ee_wait);
 	if (test_bit(__EE_WAS_ERROR, &e->flags))
-		__drbd_chk_io_error(mdev, FALSE);
+		__drbd_chk_io_error(mdev, false);
 	spin_unlock_irqrestore(&mdev->req_lock, flags);
 
 	drbd_queue_work(&mdev->data.work, &e->w);
@@ -137,7 +136,7 @@ static void drbd_endio_write_sec_final(struct drbd_epoch_entry *e) __releases(lo
 		: list_empty(&mdev->active_ee);
 
 	if (test_bit(__EE_WAS_ERROR, &e->flags))
-		__drbd_chk_io_error(mdev, FALSE);
+		__drbd_chk_io_error(mdev, false);
 	spin_unlock_irqrestore(&mdev->req_lock, flags);
 
 	if (is_syncer_req)
@@ -163,14 +162,15 @@ void drbd_endio_sec(struct bio *bio, int error)
 	int uptodate = bio_flagged(bio, BIO_UPTODATE);
 	int is_write = bio_data_dir(bio) == WRITE;
 
-	if (error)
+	if (error && __ratelimit(&drbd_ratelimit_state))
 		dev_warn(DEV, "%s: error=%d s=%llus\n",
 				is_write ? "write" : "read", error,
 				(unsigned long long)e->sector);
 	if (!error && !uptodate) {
-		dev_warn(DEV, "%s: setting error to -EIO s=%llus\n",
-				is_write ? "write" : "read",
-				(unsigned long long)e->sector);
+		if (__ratelimit(&drbd_ratelimit_state))
+			dev_warn(DEV, "%s: setting error to -EIO s=%llus\n",
+					is_write ? "write" : "read",
+					(unsigned long long)e->sector);
 		/* strange behavior of some lower level drivers...
 		 * fail the request by clearing the uptodate flag,
 		 * but do not return any error?! */
@@ -250,13 +250,6 @@ int w_read_retry_remote(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
 	return w_send_read_req(mdev, w, 0);
 }
 
-int w_resync_inactive(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
-{
-	ERR_IF(cancel) return 1;
-	dev_err(DEV, "resync inactive, but callback triggered??\n");
-	return 1; /* Simply ignore this! */
-}
-
 void drbd_csum_ee(struct drbd_conf *mdev, struct crypto_hash *tfm, struct drbd_epoch_entry *e, void *digest)
 {
 	struct hash_desc desc;
@@ -355,7 +348,7 @@ static int read_for_csum(struct drbd_conf *mdev, sector_t sector, int size)
 	if (!get_ldev(mdev))
 		return -EIO;
 
-	if (drbd_rs_should_slow_down(mdev))
+	if (drbd_rs_should_slow_down(mdev, sector))
 		goto defer;
 
 	/* GFP_TRY, because if there is no memory available right now, this may
@@ -373,9 +366,10 @@ static int read_for_csum(struct drbd_conf *mdev, sector_t sector, int size)
 	if (drbd_submit_ee(mdev, e, READ, DRBD_FAULT_RS_RD) == 0)
 		return 0;
 
-	/* drbd_submit_ee currently fails for one reason only:
-	 * not being able to allocate enough bios.
-	 * Is dropping the connection going to help? */
+	/* If it failed because of ENOMEM, retry should help.  If it failed
+	 * because bio_add_page failed (probably broken lower level driver),
+	 * retry may or may not help.
+	 * If it does not, you may need to force disconnect. */
 	spin_lock_irq(&mdev->req_lock);
 	list_del(&e->w.list);
 	spin_unlock_irq(&mdev->req_lock);
@@ -386,26 +380,25 @@ defer:
 	return -EAGAIN;
 }
 
-void resync_timer_fn(unsigned long data)
+int w_resync_timer(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
 {
-	struct drbd_conf *mdev = (struct drbd_conf *) data;
-	int queue;
-
-	queue = 1;
 	switch (mdev->state.conn) {
 	case C_VERIFY_S:
-		mdev->resync_work.cb = w_make_ov_request;
+		w_make_ov_request(mdev, w, cancel);
 		break;
 	case C_SYNC_TARGET:
-		mdev->resync_work.cb = w_make_resync_request;
+		w_make_resync_request(mdev, w, cancel);
 		break;
-	default:
-		queue = 0;
-		mdev->resync_work.cb = w_resync_inactive;
 	}
 
-	/* harmless race: list_empty outside data.work.q_lock */
-	if (list_empty(&mdev->resync_work.list) && queue)
+	return 1;
+}
+
+void resync_timer_fn(unsigned long data)
+{
+	struct drbd_conf *mdev = (struct drbd_conf *) data;
+
+	if (list_empty(&mdev->resync_work.list))
 		drbd_queue_work(&mdev->data.work, &mdev->resync_work);
 }
 
@@ -438,7 +431,7 @@ static void fifo_add_val(struct fifo_buffer *fb, int value)
 		fb->values[i] += value;
 }
 
-int drbd_rs_controller(struct drbd_conf *mdev)
+static int drbd_rs_controller(struct drbd_conf *mdev)
 {
 	unsigned int sect_in;  /* Number of sectors that came in since the last turn */
 	unsigned int want;     /* The number of sectors we want in the proxy */
@@ -492,29 +485,36 @@ int drbd_rs_controller(struct drbd_conf *mdev)
 	return req_sect;
 }
 
-int w_make_resync_request(struct drbd_conf *mdev,
-		struct drbd_work *w, int cancel)
+static int drbd_rs_number_requests(struct drbd_conf *mdev)
+{
+	int number;
+	if (mdev->rs_plan_s.size) { /* mdev->sync_conf.c_plan_ahead */
+		number = drbd_rs_controller(mdev) >> (BM_BLOCK_SHIFT - 9);
+		mdev->c_sync_rate = number * HZ * (BM_BLOCK_SIZE / 1024) / SLEEP_TIME;
+	} else {
+		mdev->c_sync_rate = mdev->sync_conf.rate;
+		number = SLEEP_TIME * mdev->c_sync_rate  / ((BM_BLOCK_SIZE / 1024) * HZ);
+	}
+
+	/* ignore the amount of pending requests, the resync controller should
+	 * throttle down to incoming reply rate soon enough anyways. */
+	return number;
+}
+
+static int w_make_resync_request(struct drbd_conf *mdev,
+				 struct drbd_work *w, int cancel)
 {
 	unsigned long bit;
 	sector_t sector;
 	const sector_t capacity = drbd_get_capacity(mdev->this_bdev);
-	int max_segment_size;
-	int number, rollback_i, size, pe, mx;
+	int max_bio_size;
+	int number, rollback_i, size;
 	int align, queued, sndbuf;
 	int i = 0;
 
 	if (unlikely(cancel))
 		return 1;
 
-	if (unlikely(mdev->state.conn < C_CONNECTED)) {
-		dev_err(DEV, "Confused in w_make_resync_request()! cstate < Connected");
-		return 0;
-	}
-
-	if (mdev->state.conn != C_SYNC_TARGET)
-		dev_err(DEV, "%s in w_make_resync_request\n",
-			drbd_conn_str(mdev->state.conn));
-
 	if (mdev->rs_total == 0) {
 		/* empty resync? */
 		drbd_resync_finished(mdev);
@@ -527,49 +527,19 @@ int w_make_resync_request(struct drbd_conf *mdev,
 		   to continue resync with a broken disk makes no sense at
 		   all */
 		dev_err(DEV, "Disk broke down during resync!\n");
-		mdev->resync_work.cb = w_resync_inactive;
 		return 1;
 	}
 
 	/* starting with drbd 8.3.8, we can handle multi-bio EEs,
 	 * if it should be necessary */
-	max_segment_size =
-		mdev->agreed_pro_version < 94 ? queue_max_segment_size(mdev->rq_queue) :
-		mdev->agreed_pro_version < 95 ?	DRBD_MAX_SIZE_H80_PACKET : DRBD_MAX_SEGMENT_SIZE;
+	max_bio_size =
+		mdev->agreed_pro_version < 94 ? queue_max_hw_sectors(mdev->rq_queue) << 9 :
+		mdev->agreed_pro_version < 95 ?	DRBD_MAX_SIZE_H80_PACKET : DRBD_MAX_BIO_SIZE;
 
-	if (mdev->rs_plan_s.size) { /* mdev->sync_conf.c_plan_ahead */
-		number = drbd_rs_controller(mdev) >> (BM_BLOCK_SHIFT - 9);
-		mdev->c_sync_rate = number * HZ * (BM_BLOCK_SIZE / 1024) / SLEEP_TIME;
-	} else {
-		mdev->c_sync_rate = mdev->sync_conf.rate;
-		number = SLEEP_TIME * mdev->c_sync_rate  / ((BM_BLOCK_SIZE / 1024) * HZ);
-	}
-
-	/* Throttle resync on lower level disk activity, which may also be
-	 * caused by application IO on Primary/SyncTarget.
-	 * Keep this after the call to drbd_rs_controller, as that assumes
-	 * to be called as precisely as possible every SLEEP_TIME,
-	 * and would be confused otherwise. */
-	if (drbd_rs_should_slow_down(mdev))
+	number = drbd_rs_number_requests(mdev);
+	if (number == 0)
 		goto requeue;
 
-	mutex_lock(&mdev->data.mutex);
-	if (mdev->data.socket)
-		mx = mdev->data.socket->sk->sk_rcvbuf / sizeof(struct p_block_req);
-	else
-		mx = 1;
-	mutex_unlock(&mdev->data.mutex);
-
-	/* For resync rates >160MB/sec, allow more pending RS requests */
-	if (number > mx)
-		mx = number;
-
-	/* Limit the number of pending RS requests to no more than the peer's receive buffer */
-	pe = atomic_read(&mdev->rs_pending_cnt);
-	if ((pe + number) > mx) {
-		number = mx - pe;
-	}
-
 	for (i = 0; i < number; i++) {
 		/* Stop generating RS requests, when half of the send buffer is filled */
 		mutex_lock(&mdev->data.mutex);
@@ -588,16 +558,16 @@ next_sector:
 		size = BM_BLOCK_SIZE;
 		bit  = drbd_bm_find_next(mdev, mdev->bm_resync_fo);
 
-		if (bit == -1UL) {
+		if (bit == DRBD_END_OF_BITMAP) {
 			mdev->bm_resync_fo = drbd_bm_bits(mdev);
-			mdev->resync_work.cb = w_resync_inactive;
 			put_ldev(mdev);
 			return 1;
 		}
 
 		sector = BM_BIT_TO_SECT(bit);
 
-		if (drbd_try_rs_begin_io(mdev, sector)) {
+		if (drbd_rs_should_slow_down(mdev, sector) ||
+		    drbd_try_rs_begin_io(mdev, sector)) {
 			mdev->bm_resync_fo = bit;
 			goto requeue;
 		}
@@ -608,7 +578,7 @@ next_sector:
 			goto next_sector;
 		}
 
-#if DRBD_MAX_SEGMENT_SIZE > BM_BLOCK_SIZE
+#if DRBD_MAX_BIO_SIZE > BM_BLOCK_SIZE
 		/* try to find some adjacent bits.
 		 * we stop if we have already the maximum req size.
 		 *
@@ -618,7 +588,7 @@ next_sector:
 		align = 1;
 		rollback_i = i;
 		for (;;) {
-			if (size + BM_BLOCK_SIZE > max_segment_size)
+			if (size + BM_BLOCK_SIZE > max_bio_size)
 				break;
 
 			/* Be always aligned */
@@ -685,7 +655,6 @@ next_sector:
 		 * resync data block, and the last bit is cleared.
 		 * until then resync "work" is "inactive" ...
 		 */
-		mdev->resync_work.cb = w_resync_inactive;
 		put_ldev(mdev);
 		return 1;
 	}
@@ -706,27 +675,18 @@ static int w_make_ov_request(struct drbd_conf *mdev, struct drbd_work *w, int ca
 	if (unlikely(cancel))
 		return 1;
 
-	if (unlikely(mdev->state.conn < C_CONNECTED)) {
-		dev_err(DEV, "Confused in w_make_ov_request()! cstate < Connected");
-		return 0;
-	}
-
-	number = SLEEP_TIME*mdev->sync_conf.rate / ((BM_BLOCK_SIZE/1024)*HZ);
-	if (atomic_read(&mdev->rs_pending_cnt) > number)
-		goto requeue;
-
-	number -= atomic_read(&mdev->rs_pending_cnt);
+	number = drbd_rs_number_requests(mdev);
 
 	sector = mdev->ov_position;
 	for (i = 0; i < number; i++) {
 		if (sector >= capacity) {
-			mdev->resync_work.cb = w_resync_inactive;
 			return 1;
 		}
 
 		size = BM_BLOCK_SIZE;
 
-		if (drbd_try_rs_begin_io(mdev, sector)) {
+		if (drbd_rs_should_slow_down(mdev, sector) ||
+		    drbd_try_rs_begin_io(mdev, sector)) {
 			mdev->ov_position = sector;
 			goto requeue;
 		}
@@ -744,11 +704,33 @@ static int w_make_ov_request(struct drbd_conf *mdev, struct drbd_work *w, int ca
 	mdev->ov_position = sector;
 
  requeue:
+	mdev->rs_in_flight += (i << (BM_BLOCK_SHIFT - 9));
 	mod_timer(&mdev->resync_timer, jiffies + SLEEP_TIME);
 	return 1;
 }
 
 
+void start_resync_timer_fn(unsigned long data)
+{
+	struct drbd_conf *mdev = (struct drbd_conf *) data;
+
+	drbd_queue_work(&mdev->data.work, &mdev->start_resync_work);
+}
+
+int w_start_resync(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
+{
+	if (atomic_read(&mdev->unacked_cnt) || atomic_read(&mdev->rs_pending_cnt)) {
+		dev_warn(DEV, "w_start_resync later...\n");
+		mdev->start_resync_timer.expires = jiffies + HZ/10;
+		add_timer(&mdev->start_resync_timer);
+		return 1;
+	}
+
+	drbd_start_resync(mdev, C_SYNC_SOURCE);
+	clear_bit(AHEAD_TO_SYNC_SOURCE, &mdev->current_epoch->flags);
+	return 1;
+}
+
 int w_ov_finished(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
 {
 	kfree(w);
@@ -782,6 +764,7 @@ int drbd_resync_finished(struct drbd_conf *mdev)
 	union drbd_state os, ns;
 	struct drbd_work *w;
 	char *khelper_cmd = NULL;
+	int verify_done = 0;
 
 	/* Remove all elements from the resync LRU. Since future actions
 	 * might set bits in the (main) bitmap, then the entries in the
@@ -792,8 +775,7 @@ int drbd_resync_finished(struct drbd_conf *mdev)
 		 * queue (or even the read operations for those packets
 		 * is not finished by now).   Retry in 100ms. */
 
-		__set_current_state(TASK_INTERRUPTIBLE);
-		schedule_timeout(HZ / 10);
+		schedule_timeout_interruptible(HZ / 10);
 		w = kmalloc(sizeof(struct drbd_work), GFP_ATOMIC);
 		if (w) {
 			w->cb = w_resync_finished;
@@ -818,6 +800,8 @@ int drbd_resync_finished(struct drbd_conf *mdev)
 	spin_lock_irq(&mdev->req_lock);
 	os = mdev->state;
 
+	verify_done = (os.conn == C_VERIFY_S || os.conn == C_VERIFY_T);
+
 	/* This protects us against multiple calls (that can happen in the presence
 	   of application IO), and against connectivity loss just before we arrive here. */
 	if (os.conn <= C_CONNECTED)
@@ -827,8 +811,7 @@ int drbd_resync_finished(struct drbd_conf *mdev)
 	ns.conn = C_CONNECTED;
 
 	dev_info(DEV, "%s done (total %lu sec; paused %lu sec; %lu K/sec)\n",
-	     (os.conn == C_VERIFY_S || os.conn == C_VERIFY_T) ?
-	     "Online verify " : "Resync",
+	     verify_done ? "Online verify " : "Resync",
 	     dt + mdev->rs_paused, mdev->rs_paused, dbdt);
 
 	n_oos = drbd_bm_total_weight(mdev);
@@ -886,14 +869,18 @@ int drbd_resync_finished(struct drbd_conf *mdev)
 			}
 		}
 
-		drbd_uuid_set_bm(mdev, 0UL);
-
-		if (mdev->p_uuid) {
-			/* Now the two UUID sets are equal, update what we
-			 * know of the peer. */
-			int i;
-			for (i = UI_CURRENT ; i <= UI_HISTORY_END ; i++)
-				mdev->p_uuid[i] = mdev->ldev->md.uuid[i];
+		if (!(os.conn == C_VERIFY_S || os.conn == C_VERIFY_T)) {
+			/* for verify runs, we don't update uuids here,
+			 * so there would be nothing to report. */
+			drbd_uuid_set_bm(mdev, 0UL);
+			drbd_print_uuids(mdev, "updated UUIDs");
+			if (mdev->p_uuid) {
+				/* Now the two UUID sets are equal, update what we
+				 * know of the peer. */
+				int i;
+				for (i = UI_CURRENT ; i <= UI_HISTORY_END ; i++)
+					mdev->p_uuid[i] = mdev->ldev->md.uuid[i];
+			}
 		}
 	}
 
@@ -905,15 +892,11 @@ out:
 	mdev->rs_total  = 0;
 	mdev->rs_failed = 0;
 	mdev->rs_paused = 0;
-	mdev->ov_start_sector = 0;
+	if (verify_done)
+		mdev->ov_start_sector = 0;
 
 	drbd_md_sync(mdev);
 
-	if (test_and_clear_bit(WRITE_BM_AFTER_RESYNC, &mdev->flags)) {
-		dev_info(DEV, "Writing the whole bitmap\n");
-		drbd_queue_bitmap_io(mdev, &drbd_bm_write, NULL, "write from resync_finished");
-	}
-
 	if (khelper_cmd)
 		drbd_khelper(mdev, khelper_cmd);
 
@@ -994,7 +977,9 @@ int w_e_end_rsdata_req(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
 		put_ldev(mdev);
 	}
 
-	if (likely((e->flags & EE_WAS_ERROR) == 0)) {
+	if (mdev->state.conn == C_AHEAD) {
+		ok = drbd_send_ack(mdev, P_RS_CANCEL, e);
+	} else if (likely((e->flags & EE_WAS_ERROR) == 0)) {
 		if (likely(mdev->state.pdsk >= D_INCONSISTENT)) {
 			inc_rs_pending(mdev);
 			ok = drbd_send_block(mdev, P_RS_DATA_REPLY, e);
@@ -1096,25 +1081,27 @@ int w_e_end_ov_req(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
 	if (unlikely(cancel))
 		goto out;
 
-	if (unlikely((e->flags & EE_WAS_ERROR) != 0))
-		goto out;
-
 	digest_size = crypto_hash_digestsize(mdev->verify_tfm);
-	/* FIXME if this allocation fails, online verify will not terminate! */
 	digest = kmalloc(digest_size, GFP_NOIO);
-	if (digest) {
-		drbd_csum_ee(mdev, mdev->verify_tfm, e, digest);
-		inc_rs_pending(mdev);
-		ok = drbd_send_drequest_csum(mdev, e->sector, e->size,
-					     digest, digest_size, P_OV_REPLY);
-		if (!ok)
-			dec_rs_pending(mdev);
-		kfree(digest);
+	if (!digest) {
+		ok = 0;	/* terminate the connection in case the allocation failed */
+		goto out;
 	}
 
+	if (likely(!(e->flags & EE_WAS_ERROR)))
+		drbd_csum_ee(mdev, mdev->verify_tfm, e, digest);
+	else
+		memset(digest, 0, digest_size);
+
+	inc_rs_pending(mdev);
+	ok = drbd_send_drequest_csum(mdev, e->sector, e->size,
+				     digest, digest_size, P_OV_REPLY);
+	if (!ok)
+		dec_rs_pending(mdev);
+	kfree(digest);
+
 out:
 	drbd_free_ee(mdev, e);
-
 	dec_unacked(mdev);
 
 	return ok;
@@ -1129,7 +1116,6 @@ void drbd_ov_oos_found(struct drbd_conf *mdev, sector_t sector, int size)
 		mdev->ov_last_oos_size = size>>9;
 	}
 	drbd_set_out_of_sync(mdev, sector, size);
-	set_bit(WRITE_BM_AFTER_RESYNC, &mdev->flags);
 }
 
 int w_e_end_ov_reply(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
@@ -1165,10 +1151,6 @@ int w_e_end_ov_reply(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
 			eq = !memcmp(digest, di->digest, digest_size);
 			kfree(digest);
 		}
-	} else {
-		ok = drbd_send_ack(mdev, P_NEG_RS_DREPLY, e);
-		if (__ratelimit(&drbd_ratelimit_state))
-			dev_err(DEV, "Sending NegDReply. I guess it gets messy.\n");
 	}
 
 	dec_unacked(mdev);
@@ -1182,7 +1164,13 @@ int w_e_end_ov_reply(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
 
 	drbd_free_ee(mdev, e);
 
-	if (--mdev->ov_left == 0) {
+	--mdev->ov_left;
+
+	/* let's advance progress step marks only for every other megabyte */
+	if ((mdev->ov_left & 0x200) == 0x200)
+		drbd_advance_rs_marks(mdev, mdev->ov_left);
+
+	if (mdev->ov_left == 0) {
 		ov_oos_print(mdev);
 		drbd_resync_finished(mdev);
 	}
@@ -1235,6 +1223,22 @@ int w_send_write_hint(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
 	return drbd_send_short_cmd(mdev, P_UNPLUG_REMOTE);
 }
 
+int w_send_oos(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
+{
+	struct drbd_request *req = container_of(w, struct drbd_request, w);
+	int ok;
+
+	if (unlikely(cancel)) {
+		req_mod(req, send_canceled);
+		return 1;
+	}
+
+	ok = drbd_send_oos(mdev, req);
+	req_mod(req, oos_handed_to_network);
+
+	return ok;
+}
+
 /**
  * w_send_dblock() - Worker callback to send a P_DATA packet in order to mirror a write request
  * @mdev:	DRBD device.
@@ -1430,6 +1434,17 @@ int drbd_alter_sa(struct drbd_conf *mdev, int na)
 	return retcode;
 }
 
+void drbd_rs_controller_reset(struct drbd_conf *mdev)
+{
+	atomic_set(&mdev->rs_sect_in, 0);
+	atomic_set(&mdev->rs_sect_ev, 0);
+	mdev->rs_in_flight = 0;
+	mdev->rs_planed = 0;
+	spin_lock(&mdev->peer_seq_lock);
+	fifo_set(&mdev->rs_plan_s, 0);
+	spin_unlock(&mdev->peer_seq_lock);
+}
+
 /**
  * drbd_start_resync() - Start the resync process
  * @mdev:	DRBD device.
@@ -1443,13 +1458,18 @@ void drbd_start_resync(struct drbd_conf *mdev, enum drbd_conns side)
 	union drbd_state ns;
 	int r;
 
-	if (mdev->state.conn >= C_SYNC_SOURCE) {
+	if (mdev->state.conn >= C_SYNC_SOURCE && mdev->state.conn < C_AHEAD) {
 		dev_err(DEV, "Resync already running!\n");
 		return;
 	}
 
-	/* In case a previous resync run was aborted by an IO error/detach on the peer. */
-	drbd_rs_cancel_all(mdev);
+	if (mdev->state.conn < C_AHEAD) {
+		/* In case a previous resync run was aborted by an IO error/detach on the peer. */
+		drbd_rs_cancel_all(mdev);
+		/* This should be done when we abort the resync. We definitely do not
+		   want to have this for connections going back and forth between
+		   Ahead/Behind and SyncSource/SyncTarget */
+	}
 
 	if (side == C_SYNC_TARGET) {
 		/* Since application IO was locked out during C_WF_BITMAP_T and
@@ -1463,6 +1483,20 @@ void drbd_start_resync(struct drbd_conf *mdev, enum drbd_conns side)
 			drbd_force_state(mdev, NS(conn, C_DISCONNECTING));
 			return;
 		}
+	} else /* C_SYNC_SOURCE */ {
+		r = drbd_khelper(mdev, "before-resync-source");
+		r = (r >> 8) & 0xff;
+		if (r > 0) {
+			if (r == 3) {
+				dev_info(DEV, "before-resync-source handler returned %d, "
+					 "ignoring. Old userland tools?", r);
+			} else {
+				dev_info(DEV, "before-resync-source handler returned %d, "
+					 "dropping connection.\n", r);
+				drbd_force_state(mdev, NS(conn, C_DISCONNECTING));
+				return;
+			}
+		}
 	}
 
 	drbd_state_lock(mdev);
@@ -1472,18 +1506,6 @@ void drbd_start_resync(struct drbd_conf *mdev, enum drbd_conns side)
 		return;
 	}
 
-	if (side == C_SYNC_TARGET) {
-		mdev->bm_resync_fo = 0;
-	} else /* side == C_SYNC_SOURCE */ {
-		u64 uuid;
-
-		get_random_bytes(&uuid, sizeof(u64));
-		drbd_uuid_set(mdev, UI_BITMAP, uuid);
-		drbd_send_sync_uuid(mdev, uuid);
-
-		D_ASSERT(mdev->state.disk == D_UP_TO_DATE);
-	}
-
 	write_lock_irq(&global_state_lock);
 	ns = mdev->state;
 
@@ -1521,13 +1543,24 @@ void drbd_start_resync(struct drbd_conf *mdev, enum drbd_conns side)
 		_drbd_pause_after(mdev);
 	}
 	write_unlock_irq(&global_state_lock);
-	put_ldev(mdev);
 
 	if (r == SS_SUCCESS) {
 		dev_info(DEV, "Began resync as %s (will sync %lu KB [%lu bits set]).\n",
 		     drbd_conn_str(ns.conn),
 		     (unsigned long) mdev->rs_total << (BM_BLOCK_SHIFT-10),
 		     (unsigned long) mdev->rs_total);
+		if (side == C_SYNC_TARGET)
+			mdev->bm_resync_fo = 0;
+
+		/* Since protocol 96, we must serialize drbd_gen_and_send_sync_uuid
+		 * with w_send_oos, or the sync target will get confused as to
+		 * how much bits to resync.  We cannot do that always, because for an
+		 * empty resync and protocol < 95, we need to do it here, as we call
+		 * drbd_resync_finished from here in that case.
+		 * We drbd_gen_and_send_sync_uuid here for protocol < 96,
+		 * and from after_state_ch otherwise. */
+		if (side == C_SYNC_SOURCE && mdev->agreed_pro_version < 96)
+			drbd_gen_and_send_sync_uuid(mdev);
 
 		if (mdev->agreed_pro_version < 95 && mdev->rs_total == 0) {
 			/* This still has a race (about when exactly the peers
@@ -1547,13 +1580,7 @@ void drbd_start_resync(struct drbd_conf *mdev, enum drbd_conns side)
 			drbd_resync_finished(mdev);
 		}
 
-		atomic_set(&mdev->rs_sect_in, 0);
-		atomic_set(&mdev->rs_sect_ev, 0);
-		mdev->rs_in_flight = 0;
-		mdev->rs_planed = 0;
-		spin_lock(&mdev->peer_seq_lock);
-		fifo_set(&mdev->rs_plan_s, 0);
-		spin_unlock(&mdev->peer_seq_lock);
+		drbd_rs_controller_reset(mdev);
 		/* ns.conn may already be != mdev->state.conn,
 		 * we may have been paused in between, or become paused until
 		 * the timer triggers.
@@ -1563,6 +1590,7 @@ void drbd_start_resync(struct drbd_conf *mdev, enum drbd_conns side)
 
 		drbd_md_sync(mdev);
 	}
+	put_ldev(mdev);
 	drbd_state_unlock(mdev);
 }
 
diff --git a/drivers/block/drbd/drbd_wrappers.h b/drivers/block/drbd/drbd_wrappers.h
index 53586fa5ae1b..151f1a37478f 100644
--- a/drivers/block/drbd/drbd_wrappers.h
+++ b/drivers/block/drbd/drbd_wrappers.h
@@ -39,7 +39,7 @@ static inline void drbd_generic_make_request(struct drbd_conf *mdev,
 		return;
 	}
 
-	if (FAULT_ACTIVE(mdev, fault_type))
+	if (drbd_insert_fault(mdev, fault_type))
 		bio_endio(bio, -EIO);
 	else
 		generic_make_request(bio);
diff --git a/drivers/block/hd.c b/drivers/block/hd.c
index 30ec6b37424e..007c630904c1 100644
--- a/drivers/block/hd.c
+++ b/drivers/block/hd.c
@@ -733,7 +733,7 @@ static int __init hd_init(void)
 		 * the BIOS or CMOS.  This doesn't work all that well,
 		 * since this assumes that this is a primary or secondary
 		 * drive, and if we're using this legacy driver, it's
-		 * probably an auxilliary controller added to recover
+		 * probably an auxiliary controller added to recover
 		 * legacy data off an ST-506 drive.  Either way, it's
 		 * definitely safest to have the user explicitly specify
 		 * the information.
diff --git a/drivers/block/viodasd.c b/drivers/block/viodasd.c
index e2ff697697c2..9a5b2a2d616d 100644
--- a/drivers/block/viodasd.c
+++ b/drivers/block/viodasd.c
@@ -94,7 +94,7 @@ static const struct vio_error_entry viodasd_err_table[] = {
 	{ 0x0204, EIO, "Use Error" },
 	{ 0x0205, EIO, "Release Error" },
 	{ 0x0206, EINVAL, "Invalid Disk" },
-	{ 0x0207, EBUSY, "Cant Lock" },
+	{ 0x0207, EBUSY, "Can't Lock" },
 	{ 0x0208, EIO, "Already Locked" },
 	{ 0x0209, EIO, "Already Unlocked" },
 	{ 0x020A, EIO, "Invalid Arg" },
diff --git a/drivers/block/xsysace.c b/drivers/block/xsysace.c
index 73354b081ed3..645ff765cd12 100644
--- a/drivers/block/xsysace.c
+++ b/drivers/block/xsysace.c
@@ -621,7 +621,7 @@ static void ace_fsm_dostate(struct ace_device *ace)
 		ace_dump_mem(ace->cf_id, 512);	/* Debug: Dump out disk ID */
 
 		if (ace->data_result) {
-			/* Error occured, disable the disk */
+			/* Error occurred, disable the disk */
 			ace->media_change = 1;
 			set_capacity(ace->gd, 0);
 			dev_err(ace->dev, "error fetching CF id (%i)\n",
@@ -801,7 +801,7 @@ static int ace_interrupt_checkstate(struct ace_device *ace)
 	u32 sreg = ace_in32(ace, ACE_STATUS);
 	u16 creg = ace_in(ace, ACE_CTRL);
 
-	/* Check for error occurance */
+	/* Check for error occurrence */
 	if ((sreg & (ACE_STATUS_CFGERROR | ACE_STATUS_CFCERROR)) &&
 	    (creg & ACE_CTRL_ERRORIRQ)) {
 		dev_err(ace->dev, "transfer failure\n");
@@ -1169,7 +1169,7 @@ static int __devinit ace_probe(struct platform_device *dev)
 			irq = dev->resource[i].start;
 	}
 
-	/* Call the bus-independant setup code */
+	/* Call the bus-independent setup code */
 	return ace_alloc(&dev->dev, id, physaddr, irq, bus_width);
 }
 
@@ -1222,7 +1222,7 @@ static int __devinit ace_of_probe(struct platform_device *op)
 	if (of_find_property(op->dev.of_node, "8-bit", NULL))
 		bus_width = ACE_BUS_WIDTH_8;
 
-	/* Call the bus-independant setup code */
+	/* Call the bus-independent setup code */
 	return ace_alloc(&op->dev, id ? be32_to_cpup(id) : 0,
 						physaddr, irq, bus_width);
 }
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index 866811428e20..762a5109c68a 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -71,6 +71,9 @@ static struct usb_device_id btusb_table[] = {
 	/* Apple MacBookAir3,1, MacBookAir3,2 */
 	{ USB_DEVICE(0x05ac, 0x821b) },
 
+	/* Apple MacBookPro8,2 */
+	{ USB_DEVICE(0x05ac, 0x821a) },
+
 	/* AVM BlueFRITZ! USB v2.0 */
 	{ USB_DEVICE(0x057c, 0x3800) },
 
@@ -690,7 +693,8 @@ static int btusb_send_frame(struct sk_buff *skb)
 		break;
 
 	case HCI_ACLDATA_PKT:
-		if (!data->bulk_tx_ep || hdev->conn_hash.acl_num < 1)
+		if (!data->bulk_tx_ep || (hdev->conn_hash.acl_num < 1 &&
+						hdev->conn_hash.le_num < 1))
 			return -ENODEV;
 
 		urb = usb_alloc_urb(0, GFP_ATOMIC);
diff --git a/drivers/bluetooth/hci_ll.c b/drivers/bluetooth/hci_ll.c
index 38595e782d02..7e4b435f79f0 100644
--- a/drivers/bluetooth/hci_ll.c
+++ b/drivers/bluetooth/hci_ll.c
@@ -207,7 +207,7 @@ static void ll_device_want_to_wakeup(struct hci_uart *hu)
 		/*
 		 * This state means that both the host and the BRF chip
 		 * have simultaneously sent a wake-up-indication packet.
-		 * Traditionaly, in this case, receiving a wake-up-indication
+		 * Traditionally, in this case, receiving a wake-up-indication
 		 * was enough and an additional wake-up-ack wasn't needed.
 		 * This has changed with the BRF6350, which does require an
 		 * explicit wake-up-ack. Other BRF versions, which do not
diff --git a/drivers/cdrom/cdrom.c b/drivers/cdrom/cdrom.c
index e2c48a7eccff..514dd8efaf73 100644
--- a/drivers/cdrom/cdrom.c
+++ b/drivers/cdrom/cdrom.c
@@ -30,7 +30,7 @@
   changelog for the 1.x series, David?
 
 2.00  Dec  2, 1997 -- Erik Andersen <andersee@debian.org>
-  -- New maintainer! As David A. van Leeuwen has been too busy to activly
+  -- New maintainer! As David A. van Leeuwen has been too busy to actively
   maintain and improve this driver, I am now carrying on the torch. If
   you have a problem with this driver, please feel free to contact me.
 
@@ -2520,7 +2520,7 @@ static int cdrom_ioctl_drive_status(struct cdrom_device_info *cdi,
 /*
  * Ok, this is where problems start.  The current interface for the
  * CDROM_DISC_STATUS ioctl is flawed.  It makes the false assumption that
- * CDs are all CDS_DATA_1 or all CDS_AUDIO, etc.  Unfortunatly, while this
+ * CDs are all CDS_DATA_1 or all CDS_AUDIO, etc.  Unfortunately, while this
  * is often the case, it is also very common for CDs to have some tracks
  * with data, and some tracks with audio.  Just because I feel like it,
  * I declare the following to be the best way to cope.  If the CD has ANY
diff --git a/drivers/char/agp/agp.h b/drivers/char/agp/agp.h
index 3e67ddde9e16..923f99df4f1c 100644
--- a/drivers/char/agp/agp.h
+++ b/drivers/char/agp/agp.h
@@ -237,7 +237,7 @@ extern int agp_try_unsupported_boot;
 
 long compat_agp_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
 
-/* Chipset independant registers (from AGP Spec) */
+/* Chipset independent registers (from AGP Spec) */
 #define AGP_APBASE	0x10
 
 #define AGPSTAT		0x4
diff --git a/drivers/char/agp/amd-k7-agp.c b/drivers/char/agp/amd-k7-agp.c
index 45681c0ff3b6..f7e88787af97 100644
--- a/drivers/char/agp/amd-k7-agp.c
+++ b/drivers/char/agp/amd-k7-agp.c
@@ -272,7 +272,7 @@ static void amd_irongate_cleanup(void)
  * This routine could be implemented by taking the addresses
  * written to the GATT, and flushing them individually.  However
  * currently it just flushes the whole table.  Which is probably
- * more efficent, since agp_memory blocks can be a large number of
+ * more efficient, since agp_memory blocks can be a large number of
  * entries.
  */
 
diff --git a/drivers/char/agp/sworks-agp.c b/drivers/char/agp/sworks-agp.c
index 13acaaf64edb..f02f9b07fd4c 100644
--- a/drivers/char/agp/sworks-agp.c
+++ b/drivers/char/agp/sworks-agp.c
@@ -229,7 +229,7 @@ static int serverworks_fetch_size(void)
  * This routine could be implemented by taking the addresses
  * written to the GATT, and flushing them individually.  However
  * currently it just flushes the whole table.  Which is probably
- * more efficent, since agp_memory blocks can be a large number of
+ * more efficient, since agp_memory blocks can be a large number of
  * entries.
  */
 static void serverworks_tlbflush(struct agp_memory *temp)
diff --git a/drivers/char/agp/via-agp.c b/drivers/char/agp/via-agp.c
index df67e80019d2..8bc384937401 100644
--- a/drivers/char/agp/via-agp.c
+++ b/drivers/char/agp/via-agp.c
@@ -400,7 +400,7 @@ static struct agp_device_ids via_agp_device_ids[] __devinitdata =
 	 * the traditional AGP which resides only in chipset. AGP is used
 	 * by 3D driver which wasn't available for the VT3336 and VT3364
 	 * generation until now.  Unfortunately, by testing, VT3364 works
-	 * but VT3336 doesn't. - explaination from via, just leave this as
+	 * but VT3336 doesn't. - explanation from via, just leave this as
 	 * as a placeholder to avoid future patches adding it back in.
 	 */
 #if 0
diff --git a/drivers/char/ipmi/ipmi_poweroff.c b/drivers/char/ipmi/ipmi_poweroff.c
index 0dec5da000ef..2efa176beab0 100644
--- a/drivers/char/ipmi/ipmi_poweroff.c
+++ b/drivers/char/ipmi/ipmi_poweroff.c
@@ -122,7 +122,7 @@ static struct ipmi_recv_msg halt_recv_msg = {
 
 
 /*
- * Code to send a message and wait for the reponse.
+ * Code to send a message and wait for the response.
  */
 
 static void receive_handler(struct ipmi_recv_msg *recv_msg, void *handler_data)
diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c
index d28b484aee45..cc6c9b2546a3 100644
--- a/drivers/char/ipmi/ipmi_si_intf.c
+++ b/drivers/char/ipmi/ipmi_si_intf.c
@@ -339,7 +339,7 @@ static void return_hosed_msg(struct smi_info *smi_info, int cCode)
 		cCode = IPMI_ERR_UNSPECIFIED;
 	/* else use it as is */
 
-	/* Make it a reponse */
+	/* Make it a response */
 	msg->rsp[0] = msg->data[0] | 4;
 	msg->rsp[1] = msg->data[1];
 	msg->rsp[2] = cCode;
@@ -2927,7 +2927,7 @@ static void return_hosed_msg_badsize(struct smi_info *smi_info)
 {
 	struct ipmi_smi_msg *msg = smi_info->curr_msg;
 
-	/* Make it a reponse */
+	/* Make it a response */
 	msg->rsp[0] = msg->data[0] | 4;
 	msg->rsp[1] = msg->data[1];
 	msg->rsp[2] = CANNOT_RETURN_REQUESTED_LENGTH;
diff --git a/drivers/char/mbcs.h b/drivers/char/mbcs.h
index ba671589f4cb..1a36884c48b5 100644
--- a/drivers/char/mbcs.h
+++ b/drivers/char/mbcs.h
@@ -36,13 +36,13 @@
 #define MBCS_RD_DMA_CTRL	0x0110	/* Read DMA Control */
 #define MBCS_RD_DMA_AMO_DEST	0x0118	/* Read DMA AMO Destination */
 #define MBCS_RD_DMA_INT_DEST	0x0120	/* Read DMA Interrupt Destination */
-#define MBCS_RD_DMA_AUX_STAT	0x0130	/* Read DMA Auxillary Status */
+#define MBCS_RD_DMA_AUX_STAT	0x0130	/* Read DMA Auxiliary Status */
 #define MBCS_WR_DMA_SYS_ADDR	0x0200	/* Write DMA System Address */
 #define MBCS_WR_DMA_LOC_ADDR	0x0208	/* Write DMA Local Address */
 #define MBCS_WR_DMA_CTRL	0x0210	/* Write DMA Control */
 #define MBCS_WR_DMA_AMO_DEST	0x0218	/* Write DMA AMO Destination */
 #define MBCS_WR_DMA_INT_DEST	0x0220	/* Write DMA Interrupt Destination */
-#define MBCS_WR_DMA_AUX_STAT	0x0230	/* Write DMA Auxillary Status */
+#define MBCS_WR_DMA_AUX_STAT	0x0230	/* Write DMA Auxiliary Status */
 #define MBCS_ALG_AMO_DEST	0x0300	/* Algorithm AMO Destination */
 #define MBCS_ALG_INT_DEST	0x0308	/* Algorithm Interrupt Destination */
 #define MBCS_ALG_OFFSETS	0x0310
diff --git a/drivers/char/mwave/3780i.h b/drivers/char/mwave/3780i.h
index 270431ca7dae..fba6ab1160ce 100644
--- a/drivers/char/mwave/3780i.h
+++ b/drivers/char/mwave/3780i.h
@@ -122,7 +122,7 @@ typedef struct {
 typedef struct {
 	unsigned char Dma:3;	/* RW: DMA channel selection */
 	unsigned char NumTransfers:2;	/* RW: Maximum # of transfers once being granted the ISA bus */
-	unsigned char ReRequest:2;	/* RW: Minumum delay between releasing the ISA bus and requesting it again */
+	unsigned char ReRequest:2;	/* RW: Minimum delay between releasing the ISA bus and requesting it again */
 	unsigned char MEMCS16:1;	/* RW: ISA signal MEMCS16: 0=disabled, 1=enabled */
 } DSP_BUSMASTER_CFG_1;
 
diff --git a/drivers/char/nwbutton.c b/drivers/char/nwbutton.c
index 8994ce32e6c7..04a480f86c6c 100644
--- a/drivers/char/nwbutton.c
+++ b/drivers/char/nwbutton.c
@@ -75,7 +75,7 @@ int button_add_callback (void (*callback) (void), int count)
  * with -EINVAL. If there is more than one entry with the same address,
  * because it searches the list from end to beginning, it will unregister the
  * last one to be registered first (FILO- First In Last Out).
- * Note that this is not neccessarily true if the entries are not submitted
+ * Note that this is not necessarily true if the entries are not submitted
  * at the same time, because another driver could have unregistered a callback
  * between the submissions creating a gap earlier in the list, which would
  * be filled first at submission time.
diff --git a/drivers/char/pcmcia/cm4000_cs.c b/drivers/char/pcmcia/cm4000_cs.c
index bcbbc71febb7..90bd01671c70 100644
--- a/drivers/char/pcmcia/cm4000_cs.c
+++ b/drivers/char/pcmcia/cm4000_cs.c
@@ -806,7 +806,7 @@ static void monitor_card(unsigned long p)
 		dev->flags1 = 0x01;
 		xoutb(dev->flags1, REG_FLAGS1(iobase));
 
-		/* atr is present (which doesnt mean it's valid) */
+		/* atr is present (which doesn't mean it's valid) */
 		set_bit(IS_ATR_PRESENT, &dev->flags);
 		if (dev->atr[0] == 0x03)
 			str_invert_revert(dev->atr, dev->atr_len);
diff --git a/drivers/char/pcmcia/synclink_cs.c b/drivers/char/pcmcia/synclink_cs.c
index beca80bb9bdb..b575411c69b2 100644
--- a/drivers/char/pcmcia/synclink_cs.c
+++ b/drivers/char/pcmcia/synclink_cs.c
@@ -1290,7 +1290,7 @@ static int startup(MGSLPC_INFO * info, struct tty_struct *tty)
 	/* Allocate and claim adapter resources */
 	retval = claim_resources(info);
 
-	/* perform existance check and diagnostics */
+	/* perform existence check and diagnostics */
 	if ( !retval )
 		retval = adapter_test(info);
 
@@ -2680,7 +2680,7 @@ static void rx_free_buffers(MGSLPC_INFO *info)
 static int claim_resources(MGSLPC_INFO *info)
 {
 	if (rx_alloc_buffers(info) < 0 ) {
-		printk( "Cant allocate rx buffer %s\n", info->device_name);
+		printk( "Can't allocate rx buffer %s\n", info->device_name);
 		release_resources(info);
 		return -ENODEV;
 	}
diff --git a/drivers/char/random.c b/drivers/char/random.c
index 5e29e8031bbc..d4ddeba56682 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -732,7 +732,7 @@ static ssize_t extract_entropy(struct entropy_store *r, void *buf,
 			       size_t nbytes, int min, int rsvd);
 
 /*
- * This utility inline function is responsible for transfering entropy
+ * This utility inline function is responsible for transferring entropy
  * from the primary pool to the secondary extraction pool. We make
  * sure we pull enough for a 'catastrophic reseed'.
  */
diff --git a/drivers/char/sonypi.c b/drivers/char/sonypi.c
index 79e36c878a4c..1ee8ce7d2762 100644
--- a/drivers/char/sonypi.c
+++ b/drivers/char/sonypi.c
@@ -1241,7 +1241,7 @@ static int __devinit sonypi_setup_ioports(struct sonypi_device *dev,
 	while (check_ioport && check->port1) {
 		if (!request_region(check->port1,
 				   sonypi_device.region_size,
-				   "Sony Programable I/O Device Check")) {
+				   "Sony Programmable I/O Device Check")) {
 			printk(KERN_ERR "sonypi: ioport 0x%.4x busy, using sony-laptop? "
 					"if not use check_ioport=0\n",
 					check->port1);
@@ -1255,7 +1255,7 @@ static int __devinit sonypi_setup_ioports(struct sonypi_device *dev,
 
 		if (request_region(ioport_list->port1,
 				   sonypi_device.region_size,
-				   "Sony Programable I/O Device")) {
+				   "Sony Programmable I/O Device")) {
 			dev->ioport1 = ioport_list->port1;
 			dev->ioport2 = ioport_list->port2;
 			return 0;
diff --git a/drivers/char/tpm/tpm.c b/drivers/char/tpm/tpm.c
index 1f46f1cd9225..7beb0e25f1e1 100644
--- a/drivers/char/tpm/tpm.c
+++ b/drivers/char/tpm/tpm.c
@@ -980,7 +980,7 @@ int tpm_open(struct inode *inode, struct file *file)
 		return -EBUSY;
 	}
 
-	chip->data_buffer = kmalloc(TPM_BUFSIZE * sizeof(u8), GFP_KERNEL);
+	chip->data_buffer = kzalloc(TPM_BUFSIZE, GFP_KERNEL);
 	if (chip->data_buffer == NULL) {
 		clear_bit(0, &chip->is_open);
 		put_device(chip->dev);
diff --git a/drivers/char/xilinx_hwicap/xilinx_hwicap.c b/drivers/char/xilinx_hwicap/xilinx_hwicap.c
index d3c9d755ed98..d6412c16385f 100644
--- a/drivers/char/xilinx_hwicap/xilinx_hwicap.c
+++ b/drivers/char/xilinx_hwicap/xilinx_hwicap.c
@@ -67,7 +67,7 @@
  * cp foo.bit /dev/icap0
  *
  * Note that unless foo.bit is an appropriately constructed partial
- * bitstream, this has a high likelyhood of overwriting the design
+ * bitstream, this has a high likelihood of overwriting the design
  * currently programmed in the FPGA.
  */
 
diff --git a/drivers/connector/cn_queue.c b/drivers/connector/cn_queue.c
index 55653aba6735..c42c9d517790 100644
--- a/drivers/connector/cn_queue.c
+++ b/drivers/connector/cn_queue.c
@@ -31,24 +31,9 @@
 #include <linux/connector.h>
 #include <linux/delay.h>
 
-void cn_queue_wrapper(struct work_struct *work)
-{
-	struct cn_callback_entry *cbq =
-		container_of(work, struct cn_callback_entry, work);
-	struct cn_callback_data *d = &cbq->data;
-	struct cn_msg *msg = NLMSG_DATA(nlmsg_hdr(d->skb));
-	struct netlink_skb_parms *nsp = &NETLINK_CB(d->skb);
-
-	d->callback(msg, nsp);
-
-	kfree_skb(d->skb);
-	d->skb = NULL;
-
-	kfree(d->free);
-}
-
 static struct cn_callback_entry *
-cn_queue_alloc_callback_entry(const char *name, struct cb_id *id,
+cn_queue_alloc_callback_entry(struct cn_queue_dev *dev, const char *name,
+			      struct cb_id *id,
 			      void (*callback)(struct cn_msg *, struct netlink_skb_parms *))
 {
 	struct cn_callback_entry *cbq;
@@ -59,17 +44,23 @@ cn_queue_alloc_callback_entry(const char *name, struct cb_id *id,
 		return NULL;
 	}
 
+	atomic_set(&cbq->refcnt, 1);
+
+	atomic_inc(&dev->refcnt);
+	cbq->pdev = dev;
+
 	snprintf(cbq->id.name, sizeof(cbq->id.name), "%s", name);
 	memcpy(&cbq->id.id, id, sizeof(struct cb_id));
-	cbq->data.callback = callback;
-
-	INIT_WORK(&cbq->work, &cn_queue_wrapper);
+	cbq->callback = callback;
 	return cbq;
 }
 
-static void cn_queue_free_callback(struct cn_callback_entry *cbq)
+void cn_queue_release_callback(struct cn_callback_entry *cbq)
 {
-	flush_workqueue(cbq->pdev->cn_queue);
+	if (!atomic_dec_and_test(&cbq->refcnt))
+		return;
+
+	atomic_dec(&cbq->pdev->refcnt);
 	kfree(cbq);
 }
 
@@ -85,13 +76,10 @@ int cn_queue_add_callback(struct cn_queue_dev *dev, const char *name,
 	struct cn_callback_entry *cbq, *__cbq;
 	int found = 0;
 
-	cbq = cn_queue_alloc_callback_entry(name, id, callback);
+	cbq = cn_queue_alloc_callback_entry(dev, name, id, callback);
 	if (!cbq)
 		return -ENOMEM;
 
-	atomic_inc(&dev->refcnt);
-	cbq->pdev = dev;
-
 	spin_lock_bh(&dev->queue_lock);
 	list_for_each_entry(__cbq, &dev->queue_list, callback_entry) {
 		if (cn_cb_equal(&__cbq->id.id, id)) {
@@ -104,8 +92,7 @@ int cn_queue_add_callback(struct cn_queue_dev *dev, const char *name,
 	spin_unlock_bh(&dev->queue_lock);
 
 	if (found) {
-		cn_queue_free_callback(cbq);
-		atomic_dec(&dev->refcnt);
+		cn_queue_release_callback(cbq);
 		return -EINVAL;
 	}
 
@@ -130,10 +117,8 @@ void cn_queue_del_callback(struct cn_queue_dev *dev, struct cb_id *id)
 	}
 	spin_unlock_bh(&dev->queue_lock);
 
-	if (found) {
-		cn_queue_free_callback(cbq);
-		atomic_dec(&dev->refcnt);
-	}
+	if (found)
+		cn_queue_release_callback(cbq);
 }
 
 struct cn_queue_dev *cn_queue_alloc_dev(const char *name, struct sock *nls)
@@ -151,12 +136,6 @@ struct cn_queue_dev *cn_queue_alloc_dev(const char *name, struct sock *nls)
 
 	dev->nls = nls;
 
-	dev->cn_queue = alloc_ordered_workqueue(dev->name, 0);
-	if (!dev->cn_queue) {
-		kfree(dev);
-		return NULL;
-	}
-
 	return dev;
 }
 
@@ -164,9 +143,6 @@ void cn_queue_free_dev(struct cn_queue_dev *dev)
 {
 	struct cn_callback_entry *cbq, *n;
 
-	flush_workqueue(dev->cn_queue);
-	destroy_workqueue(dev->cn_queue);
-
 	spin_lock_bh(&dev->queue_lock);
 	list_for_each_entry_safe(cbq, n, &dev->queue_list, callback_entry)
 		list_del(&cbq->callback_entry);
diff --git a/drivers/connector/connector.c b/drivers/connector/connector.c
index f7554de3be5e..d77005849af8 100644
--- a/drivers/connector/connector.c
+++ b/drivers/connector/connector.c
@@ -122,51 +122,28 @@ EXPORT_SYMBOL_GPL(cn_netlink_send);
  */
 static int cn_call_callback(struct sk_buff *skb)
 {
-	struct cn_callback_entry *__cbq, *__new_cbq;
+	struct cn_callback_entry *i, *cbq = NULL;
 	struct cn_dev *dev = &cdev;
 	struct cn_msg *msg = NLMSG_DATA(nlmsg_hdr(skb));
+	struct netlink_skb_parms *nsp = &NETLINK_CB(skb);
 	int err = -ENODEV;
 
 	spin_lock_bh(&dev->cbdev->queue_lock);
-	list_for_each_entry(__cbq, &dev->cbdev->queue_list, callback_entry) {
-		if (cn_cb_equal(&__cbq->id.id, &msg->id)) {
-			if (likely(!work_pending(&__cbq->work) &&
-					__cbq->data.skb == NULL)) {
-				__cbq->data.skb = skb;
-
-				if (queue_work(dev->cbdev->cn_queue,
-					       &__cbq->work))
-					err = 0;
-				else
-					err = -EINVAL;
-			} else {
-				struct cn_callback_data *d;
-
-				err = -ENOMEM;
-				__new_cbq = kzalloc(sizeof(struct cn_callback_entry), GFP_ATOMIC);
-				if (__new_cbq) {
-					d = &__new_cbq->data;
-					d->skb = skb;
-					d->callback = __cbq->data.callback;
-					d->free = __new_cbq;
-
-					INIT_WORK(&__new_cbq->work,
-							&cn_queue_wrapper);
-
-					if (queue_work(dev->cbdev->cn_queue,
-						       &__new_cbq->work))
-						err = 0;
-					else {
-						kfree(__new_cbq);
-						err = -EINVAL;
-					}
-				}
-			}
+	list_for_each_entry(i, &dev->cbdev->queue_list, callback_entry) {
+		if (cn_cb_equal(&i->id.id, &msg->id)) {
+			atomic_inc(&i->refcnt);
+			cbq = i;
 			break;
 		}
 	}
 	spin_unlock_bh(&dev->cbdev->queue_lock);
 
+	if (cbq != NULL) {
+		cbq->callback(msg, nsp);
+		kfree_skb(skb);
+		cn_queue_release_callback(cbq);
+	}
+
 	return err;
 }
 
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 0f17ad8585d7..2dafc5c38ae7 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -28,6 +28,7 @@
 #include <linux/cpu.h>
 #include <linux/completion.h>
 #include <linux/mutex.h>
+#include <linux/syscore_ops.h>
 
 #include <trace/events/power.h>
 
@@ -1340,35 +1341,31 @@ out:
 }
 EXPORT_SYMBOL(cpufreq_get);
 
+static struct sysdev_driver cpufreq_sysdev_driver = {
+	.add		= cpufreq_add_dev,
+	.remove		= cpufreq_remove_dev,
+};
+
 
 /**
- *	cpufreq_suspend - let the low level driver prepare for suspend
+ * cpufreq_bp_suspend - Prepare the boot CPU for system suspend.
+ *
+ * This function is only executed for the boot processor.  The other CPUs
+ * have been put offline by means of CPU hotplug.
  */
-
-static int cpufreq_suspend(struct sys_device *sysdev, pm_message_t pmsg)
+static int cpufreq_bp_suspend(void)
 {
 	int ret = 0;
 
-	int cpu = sysdev->id;
+	int cpu = smp_processor_id();
 	struct cpufreq_policy *cpu_policy;
 
 	dprintk("suspending cpu %u\n", cpu);
 
-	if (!cpu_online(cpu))
-		return 0;
-
-	/* we may be lax here as interrupts are off. Nonetheless
-	 * we need to grab the correct cpu policy, as to check
-	 * whether we really run on this CPU.
-	 */
-
+	/* If there's no policy for the boot CPU, we have nothing to do. */
 	cpu_policy = cpufreq_cpu_get(cpu);
 	if (!cpu_policy)
-		return -EINVAL;
-
-	/* only handle each CPU group once */
-	if (unlikely(cpu_policy->cpu != cpu))
-		goto out;
+		return 0;
 
 	if (cpufreq_driver->suspend) {
 		ret = cpufreq_driver->suspend(cpu_policy);
@@ -1377,13 +1374,12 @@ static int cpufreq_suspend(struct sys_device *sysdev, pm_message_t pmsg)
 					"step on CPU %u\n", cpu_policy->cpu);
 	}
 
-out:
 	cpufreq_cpu_put(cpu_policy);
 	return ret;
 }
 
 /**
- *	cpufreq_resume -  restore proper CPU frequency handling after resume
+ * cpufreq_bp_resume - Restore proper frequency handling of the boot CPU.
  *
  *	1.) resume CPUfreq hardware support (cpufreq_driver->resume())
  *	2.) schedule call cpufreq_update_policy() ASAP as interrupts are
@@ -1391,31 +1387,23 @@ out:
  *	    what we believe it to be. This is a bit later than when it
  *	    should be, but nonethteless it's better than calling
  *	    cpufreq_driver->get() here which might re-enable interrupts...
+ *
+ * This function is only executed for the boot CPU.  The other CPUs have not
+ * been turned on yet.
  */
-static int cpufreq_resume(struct sys_device *sysdev)
+static void cpufreq_bp_resume(void)
 {
 	int ret = 0;
 
-	int cpu = sysdev->id;
+	int cpu = smp_processor_id();
 	struct cpufreq_policy *cpu_policy;
 
 	dprintk("resuming cpu %u\n", cpu);
 
-	if (!cpu_online(cpu))
-		return 0;
-
-	/* we may be lax here as interrupts are off. Nonetheless
-	 * we need to grab the correct cpu policy, as to check
-	 * whether we really run on this CPU.
-	 */
-
+	/* If there's no policy for the boot CPU, we have nothing to do. */
 	cpu_policy = cpufreq_cpu_get(cpu);
 	if (!cpu_policy)
-		return -EINVAL;
-
-	/* only handle each CPU group once */
-	if (unlikely(cpu_policy->cpu != cpu))
-		goto fail;
+		return;
 
 	if (cpufreq_driver->resume) {
 		ret = cpufreq_driver->resume(cpu_policy);
@@ -1430,14 +1418,11 @@ static int cpufreq_resume(struct sys_device *sysdev)
 
 fail:
 	cpufreq_cpu_put(cpu_policy);
-	return ret;
 }
 
-static struct sysdev_driver cpufreq_sysdev_driver = {
-	.add		= cpufreq_add_dev,
-	.remove		= cpufreq_remove_dev,
-	.suspend	= cpufreq_suspend,
-	.resume		= cpufreq_resume,
+static struct syscore_ops cpufreq_syscore_ops = {
+	.suspend	= cpufreq_bp_suspend,
+	.resume		= cpufreq_bp_resume,
 };
 
 
@@ -1797,7 +1782,7 @@ error_out:
  *	cpufreq_update_policy - re-evaluate an existing cpufreq policy
  *	@cpu: CPU which shall be re-evaluated
  *
- *	Usefull for policy notifiers which have different necessities
+ *	Useful for policy notifiers which have different necessities
  *	at different times.
  */
 int cpufreq_update_policy(unsigned int cpu)
@@ -2002,6 +1987,7 @@ static int __init cpufreq_core_init(void)
 	cpufreq_global_kobject = kobject_create_and_add("cpufreq",
 						&cpu_sysdev_class.kset.kobj);
 	BUG_ON(!cpufreq_global_kobject);
+	register_syscore_ops(&cpufreq_syscore_ops);
 
 	return 0;
 }
diff --git a/drivers/crypto/amcc/crypto4xx_sa.c b/drivers/crypto/amcc/crypto4xx_sa.c
index 466fd94cd4a3..de8a7a48775a 100644
--- a/drivers/crypto/amcc/crypto4xx_sa.c
+++ b/drivers/crypto/amcc/crypto4xx_sa.c
@@ -17,7 +17,7 @@
  * @file crypto4xx_sa.c
  *
  * This file implements the security context
- * assoicate format.
+ * associate format.
  */
 #include <linux/kernel.h>
 #include <linux/module.h>
diff --git a/drivers/crypto/amcc/crypto4xx_sa.h b/drivers/crypto/amcc/crypto4xx_sa.h
index 4b83ed7e5570..1352d58d4e34 100644
--- a/drivers/crypto/amcc/crypto4xx_sa.h
+++ b/drivers/crypto/amcc/crypto4xx_sa.h
@@ -15,7 +15,7 @@
  * GNU General Public License for more details.
  *
  * This file defines the security context
- * assoicate format.
+ * associate format.
  */
 
 #ifndef __CRYPTO4XX_SA_H__
diff --git a/drivers/crypto/ixp4xx_crypto.c b/drivers/crypto/ixp4xx_crypto.c
index 0d662213c066..4c20c5bf6058 100644
--- a/drivers/crypto/ixp4xx_crypto.c
+++ b/drivers/crypto/ixp4xx_crypto.c
@@ -1044,7 +1044,7 @@ static int aead_perform(struct aead_request *req, int encrypt,
 	memcpy(crypt->iv, req->iv, ivsize);
 
 	if (req->src != req->dst) {
-		BUG(); /* -ENOTSUP because of my lazyness */
+		BUG(); /* -ENOTSUP because of my laziness */
 	}
 
 	/* ASSOC data */
diff --git a/drivers/dma/at_hdmac.c b/drivers/dma/at_hdmac.c
index 3d7d705f026f..235f53bf494e 100644
--- a/drivers/dma/at_hdmac.c
+++ b/drivers/dma/at_hdmac.c
@@ -167,7 +167,7 @@ static void atc_desc_put(struct at_dma_chan *atchan, struct at_desc *desc)
 /**
  * atc_assign_cookie - compute and assign new cookie
  * @atchan: channel we work on
- * @desc: descriptor to asign cookie for
+ * @desc: descriptor to assign cookie for
  *
  * Called with atchan->lock held and bh disabled
  */
diff --git a/drivers/dma/coh901318.c b/drivers/dma/coh901318.c
index 00deabd9a04b..f48e54006518 100644
--- a/drivers/dma/coh901318.c
+++ b/drivers/dma/coh901318.c
@@ -529,7 +529,7 @@ static void coh901318_pause(struct dma_chan *chan)
 	val = readl(virtbase + COH901318_CX_CFG +
 		    COH901318_CX_CFG_SPACING * channel);
 
-	/* Stopping infinit transfer */
+	/* Stopping infinite transfer */
 	if ((val & COH901318_CX_CTRL_TC_ENABLE) == 0 &&
 	    (val & COH901318_CX_CFG_CH_ENABLE))
 		cohc->stopped = 1;
diff --git a/drivers/dma/intel_mid_dma.c b/drivers/dma/intel_mid_dma.c
index 798f46a4590d..3d4ec38b9b62 100644
--- a/drivers/dma/intel_mid_dma.c
+++ b/drivers/dma/intel_mid_dma.c
@@ -911,8 +911,8 @@ static int intel_mid_dma_alloc_chan_resources(struct dma_chan *chan)
 
 /**
  * midc_handle_error -	Handle DMA txn error
- * @mid: controller where error occured
- * @midc: chan where error occured
+ * @mid: controller where error occurred
+ * @midc: chan where error occurred
  *
  * Scan the descriptor for error
  */
@@ -1099,7 +1099,7 @@ static int mid_setup_dma(struct pci_dev *pdev)
 		dma->mask_reg = ioremap(LNW_PERIPHRAL_MASK_BASE,
 					LNW_PERIPHRAL_MASK_SIZE);
 		if (dma->mask_reg == NULL) {
-			pr_err("ERR_MDMA:Cant map periphral intr space !!\n");
+			pr_err("ERR_MDMA:Can't map periphral intr space !!\n");
 			return -ENOMEM;
 		}
 	} else
@@ -1373,7 +1373,7 @@ int dma_resume(struct pci_dev *pci)
 	pci_restore_state(pci);
 	ret = pci_enable_device(pci);
 	if (ret) {
-		pr_err("MDMA: device cant be enabled for %x\n", pci->device);
+		pr_err("MDMA: device can't be enabled for %x\n", pci->device);
 		return ret;
 	}
 	device->state = RUNNING;
diff --git a/drivers/dma/intel_mid_dma_regs.h b/drivers/dma/intel_mid_dma_regs.h
index 709fecbdde79..aea5ee88ce03 100644
--- a/drivers/dma/intel_mid_dma_regs.h
+++ b/drivers/dma/intel_mid_dma_regs.h
@@ -174,8 +174,8 @@ union intel_mid_dma_cfg_hi {
  * @dma: dma device struture pointer
  * @busy: bool representing if ch is busy (active txn) or not
  * @in_use: bool representing if ch is in use or not
- * @raw_tfr: raw trf interrupt recieved
- * @raw_block: raw block interrupt recieved
+ * @raw_tfr: raw trf interrupt received
+ * @raw_block: raw block interrupt received
  */
 struct intel_mid_dma_chan {
 	struct dma_chan		chan;
diff --git a/drivers/dma/ipu/ipu_irq.c b/drivers/dma/ipu/ipu_irq.c
index dd8ebc75b667..ab8a4eff072a 100644
--- a/drivers/dma/ipu/ipu_irq.c
+++ b/drivers/dma/ipu/ipu_irq.c
@@ -94,9 +94,9 @@ static struct ipu_irq_map *src2map(unsigned int src)
 	return NULL;
 }
 
-static void ipu_irq_unmask(unsigned int irq)
+static void ipu_irq_unmask(struct irq_data *d)
 {
-	struct ipu_irq_map *map = get_irq_chip_data(irq);
+	struct ipu_irq_map *map = irq_data_get_irq_chip_data(d);
 	struct ipu_irq_bank *bank;
 	uint32_t reg;
 	unsigned long lock_flags;
@@ -106,7 +106,7 @@ static void ipu_irq_unmask(unsigned int irq)
 	bank = map->bank;
 	if (!bank) {
 		spin_unlock_irqrestore(&bank_lock, lock_flags);
-		pr_err("IPU: %s(%u) - unmapped!\n", __func__, irq);
+		pr_err("IPU: %s(%u) - unmapped!\n", __func__, d->irq);
 		return;
 	}
 
@@ -117,9 +117,9 @@ static void ipu_irq_unmask(unsigned int irq)
 	spin_unlock_irqrestore(&bank_lock, lock_flags);
 }
 
-static void ipu_irq_mask(unsigned int irq)
+static void ipu_irq_mask(struct irq_data *d)
 {
-	struct ipu_irq_map *map = get_irq_chip_data(irq);
+	struct ipu_irq_map *map = irq_data_get_irq_chip_data(d);
 	struct ipu_irq_bank *bank;
 	uint32_t reg;
 	unsigned long lock_flags;
@@ -129,7 +129,7 @@ static void ipu_irq_mask(unsigned int irq)
 	bank = map->bank;
 	if (!bank) {
 		spin_unlock_irqrestore(&bank_lock, lock_flags);
-		pr_err("IPU: %s(%u) - unmapped!\n", __func__, irq);
+		pr_err("IPU: %s(%u) - unmapped!\n", __func__, d->irq);
 		return;
 	}
 
@@ -140,9 +140,9 @@ static void ipu_irq_mask(unsigned int irq)
 	spin_unlock_irqrestore(&bank_lock, lock_flags);
 }
 
-static void ipu_irq_ack(unsigned int irq)
+static void ipu_irq_ack(struct irq_data *d)
 {
-	struct ipu_irq_map *map = get_irq_chip_data(irq);
+	struct ipu_irq_map *map = irq_data_get_irq_chip_data(d);
 	struct ipu_irq_bank *bank;
 	unsigned long lock_flags;
 
@@ -151,7 +151,7 @@ static void ipu_irq_ack(unsigned int irq)
 	bank = map->bank;
 	if (!bank) {
 		spin_unlock_irqrestore(&bank_lock, lock_flags);
-		pr_err("IPU: %s(%u) - unmapped!\n", __func__, irq);
+		pr_err("IPU: %s(%u) - unmapped!\n", __func__, d->irq);
 		return;
 	}
 
@@ -167,7 +167,7 @@ static void ipu_irq_ack(unsigned int irq)
  */
 bool ipu_irq_status(unsigned int irq)
 {
-	struct ipu_irq_map *map = get_irq_chip_data(irq);
+	struct ipu_irq_map *map = irq_get_chip_data(irq);
 	struct ipu_irq_bank *bank;
 	unsigned long lock_flags;
 	bool ret;
@@ -269,7 +269,7 @@ int ipu_irq_unmap(unsigned int source)
 /* Chained IRQ handler for IPU error interrupt */
 static void ipu_irq_err(unsigned int irq, struct irq_desc *desc)
 {
-	struct ipu *ipu = get_irq_data(irq);
+	struct ipu *ipu = irq_get_handler_data(irq);
 	u32 status;
 	int i, line;
 
@@ -310,7 +310,7 @@ static void ipu_irq_err(unsigned int irq, struct irq_desc *desc)
 /* Chained IRQ handler for IPU function interrupt */
 static void ipu_irq_fn(unsigned int irq, struct irq_desc *desc)
 {
-	struct ipu *ipu = get_irq_data(irq);
+	struct ipu *ipu = irq_desc_get_handler_data(desc);
 	u32 status;
 	int i, line;
 
@@ -345,10 +345,10 @@ static void ipu_irq_fn(unsigned int irq, struct irq_desc *desc)
 }
 
 static struct irq_chip ipu_irq_chip = {
-	.name	= "ipu_irq",
-	.ack	= ipu_irq_ack,
-	.mask	= ipu_irq_mask,
-	.unmask	= ipu_irq_unmask,
+	.name		= "ipu_irq",
+	.irq_ack	= ipu_irq_ack,
+	.irq_mask	= ipu_irq_mask,
+	.irq_unmask	= ipu_irq_unmask,
 };
 
 /* Install the IRQ handler */
@@ -366,26 +366,26 @@ int __init ipu_irq_attach_irq(struct ipu *ipu, struct platform_device *dev)
 		int ret;
 
 		irq = irq_base + i;
-		ret = set_irq_chip(irq, &ipu_irq_chip);
+		ret = irq_set_chip(irq, &ipu_irq_chip);
 		if (ret < 0)
 			return ret;
-		ret = set_irq_chip_data(irq, irq_map + i);
+		ret = irq_set_chip_data(irq, irq_map + i);
 		if (ret < 0)
 			return ret;
 		irq_map[i].ipu = ipu;
 		irq_map[i].irq = irq;
 		irq_map[i].source = -EINVAL;
-		set_irq_handler(irq, handle_level_irq);
+		irq_set_handler(irq, handle_level_irq);
 #ifdef CONFIG_ARM
 		set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
 #endif
 	}
 
-	set_irq_data(ipu->irq_fn, ipu);
-	set_irq_chained_handler(ipu->irq_fn, ipu_irq_fn);
+	irq_set_handler_data(ipu->irq_fn, ipu);
+	irq_set_chained_handler(ipu->irq_fn, ipu_irq_fn);
 
-	set_irq_data(ipu->irq_err, ipu);
-	set_irq_chained_handler(ipu->irq_err, ipu_irq_err);
+	irq_set_handler_data(ipu->irq_err, ipu);
+	irq_set_chained_handler(ipu->irq_err, ipu_irq_err);
 
 	return 0;
 }
@@ -397,17 +397,17 @@ void ipu_irq_detach_irq(struct ipu *ipu, struct platform_device *dev)
 
 	irq_base = pdata->irq_base;
 
-	set_irq_chained_handler(ipu->irq_fn, NULL);
-	set_irq_data(ipu->irq_fn, NULL);
+	irq_set_chained_handler(ipu->irq_fn, NULL);
+	irq_set_handler_data(ipu->irq_fn, NULL);
 
-	set_irq_chained_handler(ipu->irq_err, NULL);
-	set_irq_data(ipu->irq_err, NULL);
+	irq_set_chained_handler(ipu->irq_err, NULL);
+	irq_set_handler_data(ipu->irq_err, NULL);
 
 	for (irq = irq_base; irq < irq_base + CONFIG_MX3_IPU_IRQS; irq++) {
 #ifdef CONFIG_ARM
 		set_irq_flags(irq, 0);
 #endif
-		set_irq_chip(irq, NULL);
-		set_irq_chip_data(irq, NULL);
+		irq_set_chip(irq, NULL);
+		irq_set_chip_data(irq, NULL);
 	}
 }
diff --git a/drivers/dma/mpc512x_dma.c b/drivers/dma/mpc512x_dma.c
index 4f95d31f5a20..b9bae94f2015 100644
--- a/drivers/dma/mpc512x_dma.c
+++ b/drivers/dma/mpc512x_dma.c
@@ -328,7 +328,7 @@ static irqreturn_t mpc_dma_irq(int irq, void *data)
 	return IRQ_HANDLED;
 }
 
-/* proccess completed descriptors */
+/* process completed descriptors */
 static void mpc_dma_process_completed(struct mpc_dma *mdma)
 {
 	dma_cookie_t last_cookie = 0;
diff --git a/drivers/dma/shdma.c b/drivers/dma/shdma.c
index 6451b581a70b..d50da41ac328 100644
--- a/drivers/dma/shdma.c
+++ b/drivers/dma/shdma.c
@@ -865,7 +865,12 @@ static unsigned int sh_dmae_reset(struct sh_dmae_device *shdev)
 
 static irqreturn_t sh_dmae_err(int irq, void *data)
 {
-	return IRQ_RETVAL(sh_dmae_reset(data));
+	struct sh_dmae_device *shdev = data;
+
+	if (dmaor_read(shdev) & DMAOR_AE)
+		return IRQ_RETVAL(sh_dmae_reset(data));
+	else
+		return IRQ_NONE;
 }
 
 static void dmae_do_tasklet(unsigned long data)
diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c
index af955de035f4..94ee15dd3aed 100644
--- a/drivers/dma/ste_dma40.c
+++ b/drivers/dma/ste_dma40.c
@@ -90,7 +90,7 @@ struct d40_lli_pool {
  * @lli_log: Same as above but for logical channels.
  * @lli_pool: The pool with two entries pre-allocated.
  * @lli_len: Number of llis of current descriptor.
- * @lli_current: Number of transfered llis.
+ * @lli_current: Number of transferred llis.
  * @lcla_alloc: Number of LCLA entries allocated.
  * @txd: DMA engine struct. Used for among other things for communication
  * during a transfer.
@@ -1214,7 +1214,7 @@ static void dma_tasklet(unsigned long data)
 	return;
 
  err:
-	/* Rescue manouver if receiving double interrupts */
+	/* Rescue manoeuvre if receiving double interrupts */
 	if (d40c->pending_tx > 0)
 		d40c->pending_tx--;
 	spin_unlock_irqrestore(&d40c->lock, flags);
diff --git a/drivers/edac/Kconfig b/drivers/edac/Kconfig
index fac1a2002e67..af1a17d42bd7 100644
--- a/drivers/edac/Kconfig
+++ b/drivers/edac/Kconfig
@@ -45,7 +45,7 @@ config EDAC_DECODE_MCE
 	default y
 	---help---
 	  Enable this option if you want to decode Machine Check Exceptions
-	  occuring on your machine in human-readable form.
+	  occurring on your machine in human-readable form.
 
 	  You should definitely say Y here in case you want to decode MCEs
 	  which occur really early upon boot, before the module infrastructure
diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c
index 0be30e978c85..31e71c4fc831 100644
--- a/drivers/edac/amd64_edac.c
+++ b/drivers/edac/amd64_edac.c
@@ -2679,7 +2679,7 @@ static int __init amd64_edac_init(void)
 	mcis	  = kzalloc(amd_nb_num() * sizeof(mcis[0]), GFP_KERNEL);
 	ecc_stngs = kzalloc(amd_nb_num() * sizeof(ecc_stngs[0]), GFP_KERNEL);
 	if (!(mcis && ecc_stngs))
-		goto err_ret;
+		goto err_free;
 
 	msrs = msrs_alloc();
 	if (!msrs)
diff --git a/drivers/edac/cpc925_edac.c b/drivers/edac/cpc925_edac.c
index b9a781c47e3c..837ad8f85b48 100644
--- a/drivers/edac/cpc925_edac.c
+++ b/drivers/edac/cpc925_edac.c
@@ -817,7 +817,7 @@ static void cpc925_del_edac_devices(void)
 	}
 }
 
-/* Convert current back-ground scrub rate into byte/sec bandwith */
+/* Convert current back-ground scrub rate into byte/sec bandwidth */
 static int cpc925_get_sdram_scrub_rate(struct mem_ctl_info *mci)
 {
 	struct cpc925_mc_pdata *pdata = mci->pvt_info;
diff --git a/drivers/edac/edac_core.h b/drivers/edac/edac_core.h
index 3d965347a673..eefa3501916b 100644
--- a/drivers/edac/edac_core.h
+++ b/drivers/edac/edac_core.h
@@ -164,7 +164,7 @@ enum mem_type {
 /* chipset Error Detection and Correction capabilities and mode */
 enum edac_type {
 	EDAC_UNKNOWN = 0,	/* Unknown if ECC is available */
-	EDAC_NONE,		/* Doesnt support ECC */
+	EDAC_NONE,		/* Doesn't support ECC */
 	EDAC_RESERVED,		/* Reserved ECC type */
 	EDAC_PARITY,		/* Detects parity errors */
 	EDAC_EC,		/* Error Checking - no correction */
@@ -233,7 +233,7 @@ enum scrub_type {
  *			of these in parallel provides 64 bits which is common
  *			for a memory stick.
  *
- * Memory Stick:	A printed circuit board that agregates multiple
+ * Memory Stick:	A printed circuit board that aggregates multiple
  *			memory devices in parallel.  This is the atomic
  *			memory component that is purchaseable by Joe consumer
  *			and loaded into a memory socket.
@@ -385,7 +385,7 @@ struct mem_ctl_info {
 
 	/* Get the current sdram memory scrub rate from the internal
 	   representation and converts it to the closest matching
-	   bandwith in bytes/sec.
+	   bandwidth in bytes/sec.
 	 */
 	int (*get_sdram_scrub_rate) (struct mem_ctl_info * mci);
 
@@ -823,7 +823,7 @@ extern int edac_mc_find_csrow_by_page(struct mem_ctl_info *mci,
  * There are a limited number of error logging registers that can
  * be exausted.  When all registers are exhausted and an additional
  * error occurs then an error overflow register records that an
- * error occured and the type of error, but doesn't have any
+ * error occurred and the type of error, but doesn't have any
  * further information.  The ce/ue versions make for cleaner
  * reporting logic and function interface - reduces conditional
  * statement clutter and extra function arguments.
diff --git a/drivers/edac/edac_device.c b/drivers/edac/edac_device.c
index d5e13c94714f..a7408cf86f37 100644
--- a/drivers/edac/edac_device.c
+++ b/drivers/edac/edac_device.c
@@ -672,7 +672,7 @@ void edac_device_handle_ce(struct edac_device_ctl_info *edac_dev,
 		block->counters.ce_count++;
 	}
 
-	/* Propogate the count up the 'totals' tree */
+	/* Propagate the count up the 'totals' tree */
 	instance->counters.ce_count++;
 	edac_dev->counters.ce_count++;
 
@@ -718,7 +718,7 @@ void edac_device_handle_ue(struct edac_device_ctl_info *edac_dev,
 		block->counters.ue_count++;
 	}
 
-	/* Propogate the count up the 'totals' tree */
+	/* Propagate the count up the 'totals' tree */
 	instance->counters.ue_count++;
 	edac_dev->counters.ue_count++;
 
diff --git a/drivers/edac/edac_device_sysfs.c b/drivers/edac/edac_device_sysfs.c
index 400de071cabc..86649df00285 100644
--- a/drivers/edac/edac_device_sysfs.c
+++ b/drivers/edac/edac_device_sysfs.c
@@ -533,7 +533,7 @@ static int edac_device_create_block(struct edac_device_ctl_info *edac_dev,
 	memset(&block->kobj, 0, sizeof(struct kobject));
 
 	/* bump the main kobject's reference count for this controller
-	 * and this instance is dependant on the main
+	 * and this instance is dependent on the main
 	 */
 	main_kobj = kobject_get(&edac_dev->kobj);
 	if (!main_kobj) {
@@ -635,7 +635,7 @@ static int edac_device_create_instance(struct edac_device_ctl_info *edac_dev,
 	instance->ctl = edac_dev;
 
 	/* bump the main kobject's reference count for this controller
-	 * and this instance is dependant on the main
+	 * and this instance is dependent on the main
 	 */
 	main_kobj = kobject_get(&edac_dev->kobj);
 	if (!main_kobj) {
diff --git a/drivers/edac/edac_mc.c b/drivers/edac/edac_mc.c
index a4e9db2d6524..1d8056049072 100644
--- a/drivers/edac/edac_mc.c
+++ b/drivers/edac/edac_mc.c
@@ -724,7 +724,7 @@ void edac_mc_handle_ce(struct mem_ctl_info *mci,
 		 * Some MC's can remap memory so that it is still available
 		 * at a different address when PCI devices map into memory.
 		 * MC's that can't do this lose the memory where PCI devices
-		 * are mapped.  This mapping is MC dependant and so we call
+		 * are mapped.  This mapping is MC dependent and so we call
 		 * back into the MC driver for it to map the MC page to
 		 * a physical (CPU) page which can then be mapped to a virtual
 		 * page - which can then be scrubbed.
diff --git a/drivers/edac/edac_mc_sysfs.c b/drivers/edac/edac_mc_sysfs.c
index 73196f7b7229..26343fd46596 100644
--- a/drivers/edac/edac_mc_sysfs.c
+++ b/drivers/edac/edac_mc_sysfs.c
@@ -850,7 +850,7 @@ static void edac_remove_mci_instance_attributes(struct mem_ctl_info *mci,
 
 	/*
 	 * loop if there are attributes and until we hit a NULL entry
-	 * Remove first all the atributes
+	 * Remove first all the attributes
 	 */
 	while (sysfs_attrib) {
 		debugf4("%s() sysfs_attrib = %p\n",__func__, sysfs_attrib);
diff --git a/drivers/edac/edac_pci_sysfs.c b/drivers/edac/edac_pci_sysfs.c
index 023b01cb5175..495198ad059c 100644
--- a/drivers/edac/edac_pci_sysfs.c
+++ b/drivers/edac/edac_pci_sysfs.c
@@ -352,7 +352,7 @@ static int edac_pci_main_kobj_setup(void)
 		return 0;
 
 	/* First time, so create the main kobject and its
-	 * controls and atributes
+	 * controls and attributes
 	 */
 	edac_class = edac_get_sysfs_class();
 	if (edac_class == NULL) {
@@ -551,7 +551,7 @@ static void edac_pci_dev_parity_clear(struct pci_dev *dev)
 /*
  *  PCI Parity polling
  *
- *	Fucntion to retrieve the current parity status
+ *	Function to retrieve the current parity status
  *	and decode it
  *
  */
diff --git a/drivers/edac/i5000_edac.c b/drivers/edac/i5000_edac.c
index a5cefab8d65d..87f427c2ce5c 100644
--- a/drivers/edac/i5000_edac.c
+++ b/drivers/edac/i5000_edac.c
@@ -1372,7 +1372,7 @@ static int i5000_probe1(struct pci_dev *pdev, int dev_idx)
 	 * actual number of slots/dimms per channel, we thus utilize the
 	 * resource as specified by the chipset. Thus, we might have
 	 * have more DIMMs per channel than actually on the mobo, but this
-	 * allows the driver to support upto the chipset max, without
+	 * allows the driver to support up to the chipset max, without
 	 * some fancy mobo determination.
 	 */
 	i5000_get_dimm_and_channel_counts(pdev, &num_dimms_per_channel,
diff --git a/drivers/edac/i5100_edac.c b/drivers/edac/i5100_edac.c
index 0448da0af75d..bcbdeeca48b8 100644
--- a/drivers/edac/i5100_edac.c
+++ b/drivers/edac/i5100_edac.c
@@ -11,7 +11,7 @@
  *
  * The intel 5100 has two independent channels. EDAC core currently
  * can not reflect this configuration so instead the chip-select
- * rows for each respective channel are layed out one after another,
+ * rows for each respective channel are laid out one after another,
  * the first half belonging to channel 0, the second half belonging
  * to channel 1.
  */
diff --git a/drivers/edac/i5400_edac.c b/drivers/edac/i5400_edac.c
index 38a9be9e1c7c..80a465efbae8 100644
--- a/drivers/edac/i5400_edac.c
+++ b/drivers/edac/i5400_edac.c
@@ -648,7 +648,7 @@ static void i5400_process_nonfatal_error_info(struct mem_ctl_info *mci,
 		return;
 	}
 
-	/* Miscelaneous errors */
+	/* Miscellaneous errors */
 	errnum = find_first_bit(&allErrors, ARRAY_SIZE(error_name));
 
 	branch = extract_fbdchan_indx(info->ferr_nf_fbd);
@@ -1240,7 +1240,7 @@ static int i5400_probe1(struct pci_dev *pdev, int dev_idx)
 	 * actual number of slots/dimms per channel, we thus utilize the
 	 * resource as specified by the chipset. Thus, we might have
 	 * have more DIMMs per channel than actually on the mobo, but this
-	 * allows the driver to support upto the chipset max, without
+	 * allows the driver to support up to the chipset max, without
 	 * some fancy mobo determination.
 	 */
 	num_dimms_per_channel = MAX_DIMMS_PER_CHANNEL;
diff --git a/drivers/edac/i7300_edac.c b/drivers/edac/i7300_edac.c
index 76d1f576cdc8..363cc1602944 100644
--- a/drivers/edac/i7300_edac.c
+++ b/drivers/edac/i7300_edac.c
@@ -1065,7 +1065,7 @@ static int __devinit i7300_init_one(struct pci_dev *pdev,
 	 * actual number of slots/dimms per channel, we thus utilize the
 	 * resource as specified by the chipset. Thus, we might have
 	 * have more DIMMs per channel than actually on the mobo, but this
-	 * allows the driver to support upto the chipset max, without
+	 * allows the driver to support up to the chipset max, without
 	 * some fancy mobo determination.
 	 */
 	num_dimms_per_channel = MAX_SLOTS;
diff --git a/drivers/edac/i7core_edac.c b/drivers/edac/i7core_edac.c
index 81154ab296b6..465cbc25149f 100644
--- a/drivers/edac/i7core_edac.c
+++ b/drivers/edac/i7core_edac.c
@@ -1772,7 +1772,7 @@ static void i7core_check_error(struct mem_ctl_info *mci)
 	/*
 	 * MCE first step: Copy all mce errors into a temporary buffer
 	 * We use a double buffering here, to reduce the risk of
-	 * loosing an error.
+	 * losing an error.
 	 */
 	smp_rmb();
 	count = (pvt->mce_out + MCE_LOG_LEN - pvt->mce_in)
diff --git a/drivers/edac/i82443bxgx_edac.c b/drivers/edac/i82443bxgx_edac.c
index 678405ab04e4..4329d39f902c 100644
--- a/drivers/edac/i82443bxgx_edac.c
+++ b/drivers/edac/i82443bxgx_edac.c
@@ -203,7 +203,7 @@ static void i82443bxgx_init_csrows(struct mem_ctl_info *mci,
 		row_high_limit = ((u32) drbar << 23);
 		/* find the DRAM Chip Select Base address and mask */
 		debugf1("MC%d: %s: %s() Row=%d, "
-			"Boundry Address=%#0x, Last = %#0x\n",
+			"Boundary Address=%#0x, Last = %#0x\n",
 			mci->mc_idx, __FILE__, __func__, index, row_high_limit,
 			row_high_limit_last);
 
@@ -305,7 +305,7 @@ static int i82443bxgx_edacmc_probe1(struct pci_dev *pdev, int dev_idx)
 	i82443bxgx_init_csrows(mci, pdev, edac_mode, mtype);
 
 	/* Many BIOSes don't clear error flags on boot, so do this
-	 * here, or we get "phantom" errors occuring at module-load
+	 * here, or we get "phantom" errors occurring at module-load
 	 * time. */
 	pci_write_bits32(pdev, I82443BXGX_EAP,
 			(I82443BXGX_EAP_OFFSET_SBE |
diff --git a/drivers/edac/mce_amd_inj.c b/drivers/edac/mce_amd_inj.c
index 733a7e7a8d6f..a4987e03f59e 100644
--- a/drivers/edac/mce_amd_inj.c
+++ b/drivers/edac/mce_amd_inj.c
@@ -90,7 +90,7 @@ static ssize_t edac_inject_bank_store(struct kobject *kobj,
 
 	if (value > 5)
 		if (boot_cpu_data.x86 != 0x15 || value > 6) {
-			printk(KERN_ERR "Non-existant MCE bank: %lu\n", value);
+			printk(KERN_ERR "Non-existent MCE bank: %lu\n", value);
 			return -EINVAL;
 		}
 
diff --git a/drivers/edac/mpc85xx_edac.c b/drivers/edac/mpc85xx_edac.c
index ffb5ad080bee..38ab8e2cd7f4 100644
--- a/drivers/edac/mpc85xx_edac.c
+++ b/drivers/edac/mpc85xx_edac.c
@@ -1147,13 +1147,14 @@ static struct platform_driver mpc85xx_mc_err_driver = {
 static void __init mpc85xx_mc_clear_rfxe(void *data)
 {
 	orig_hid1[smp_processor_id()] = mfspr(SPRN_HID1);
-	mtspr(SPRN_HID1, (orig_hid1[smp_processor_id()] & ~0x20000));
+	mtspr(SPRN_HID1, (orig_hid1[smp_processor_id()] & ~HID1_RFXE));
 }
 #endif
 
 static int __init mpc85xx_mc_init(void)
 {
 	int res = 0;
+	u32 pvr = 0;
 
 	printk(KERN_INFO "Freescale(R) MPC85xx EDAC driver, "
 	       "(C) 2006 Montavista Software\n");
@@ -1183,12 +1184,17 @@ static int __init mpc85xx_mc_init(void)
 #endif
 
 #ifdef CONFIG_FSL_SOC_BOOKE
-	/*
-	 * need to clear HID1[RFXE] to disable machine check int
-	 * so we can catch it
-	 */
-	if (edac_op_state == EDAC_OPSTATE_INT)
-		on_each_cpu(mpc85xx_mc_clear_rfxe, NULL, 0);
+	pvr = mfspr(SPRN_PVR);
+
+	if ((PVR_VER(pvr) == PVR_VER_E500V1) ||
+	    (PVR_VER(pvr) == PVR_VER_E500V2)) {
+		/*
+		 * need to clear HID1[RFXE] to disable machine check int
+		 * so we can catch it
+		 */
+		if (edac_op_state == EDAC_OPSTATE_INT)
+			on_each_cpu(mpc85xx_mc_clear_rfxe, NULL, 0);
+	}
 #endif
 
 	return 0;
@@ -1206,7 +1212,12 @@ static void __exit mpc85xx_mc_restore_hid1(void *data)
 static void __exit mpc85xx_mc_exit(void)
 {
 #ifdef CONFIG_FSL_SOC_BOOKE
-	on_each_cpu(mpc85xx_mc_restore_hid1, NULL, 0);
+	u32 pvr = mfspr(SPRN_PVR);
+
+	if ((PVR_VER(pvr) == PVR_VER_E500V1) ||
+	    (PVR_VER(pvr) == PVR_VER_E500V2)) {
+		on_each_cpu(mpc85xx_mc_restore_hid1, NULL, 0);
+	}
 #endif
 #ifdef CONFIG_PCI
 	platform_driver_unregister(&mpc85xx_pci_err_driver);
diff --git a/drivers/edac/r82600_edac.c b/drivers/edac/r82600_edac.c
index 6a822c631ef5..678513738c33 100644
--- a/drivers/edac/r82600_edac.c
+++ b/drivers/edac/r82600_edac.c
@@ -120,7 +120,7 @@
 				 *        write 0=NOP
 				 */
 
-#define R82600_DRBA	0x60	/* + 0x60..0x63 SDRAM Row Boundry Address
+#define R82600_DRBA	0x60	/* + 0x60..0x63 SDRAM Row Boundary Address
 				 *  Registers
 				 *
 				 * 7:0  Address lines 30:24 - upper limit of
@@ -217,7 +217,7 @@ static void r82600_init_csrows(struct mem_ctl_info *mci, struct pci_dev *pdev,
 {
 	struct csrow_info *csrow;
 	int index;
-	u8 drbar;		/* SDRAM Row Boundry Address Register */
+	u8 drbar;		/* SDRAM Row Boundary Address Register */
 	u32 row_high_limit, row_high_limit_last;
 	u32 reg_sdram, ecc_on, row_base;
 
@@ -236,7 +236,7 @@ static void r82600_init_csrows(struct mem_ctl_info *mci, struct pci_dev *pdev,
 		row_high_limit = ((u32) drbar << 24);
 /*		row_high_limit = ((u32)drbar << 24) | 0xffffffUL; */
 
-		debugf1("%s() Row=%d, Boundry Address=%#0x, Last = %#0x\n",
+		debugf1("%s() Row=%d, Boundary Address=%#0x, Last = %#0x\n",
 			__func__, index, row_high_limit, row_high_limit_last);
 
 		/* Empty row [p.57] */
diff --git a/drivers/firewire/net.c b/drivers/firewire/net.c
index 7ed08fd1214e..3f04dd3681cf 100644
--- a/drivers/firewire/net.c
+++ b/drivers/firewire/net.c
@@ -453,7 +453,7 @@ static bool fwnet_pd_update(struct fwnet_peer *peer,
 	memcpy(pd->pbuf + frag_off, frag_buf, frag_len);
 
 	/*
-	 * Move list entry to beginnig of list so that oldest partial
+	 * Move list entry to beginning of list so that oldest partial
 	 * datagrams percolate to the end of the list
 	 */
 	list_move_tail(&pd->pd_link, &peer->pd_list);
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index d8d0cda2641d..d3b295305542 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -414,4 +414,9 @@ config GPIO_JANZ_TTL
 	  This driver provides support for driving the pins in output
 	  mode only. Input mode is not supported.
 
+config AB8500_GPIO
+	bool "ST-Ericsson AB8500 Mixed Signal Circuit gpio functions"
+	depends on AB8500_CORE && BROKEN
+	help
+	  Select this to enable the AB8500 IC GPIO driver
 endif
diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile
index 3351cf87b0ed..becef5954356 100644
--- a/drivers/gpio/Makefile
+++ b/drivers/gpio/Makefile
@@ -42,3 +42,4 @@ obj-$(CONFIG_GPIO_JANZ_TTL)	+= janz-ttl.o
 obj-$(CONFIG_GPIO_SX150X)	+= sx150x.o
 obj-$(CONFIG_GPIO_VX855)	+= vx855_gpio.o
 obj-$(CONFIG_GPIO_ML_IOH)	+= ml_ioh_gpio.o
+obj-$(CONFIG_AB8500_GPIO)       += ab8500-gpio.o
diff --git a/drivers/gpio/ab8500-gpio.c b/drivers/gpio/ab8500-gpio.c
new file mode 100644
index 000000000000..e7b834d054b7
--- /dev/null
+++ b/drivers/gpio/ab8500-gpio.c
@@ -0,0 +1,522 @@
+/*
+ * Copyright (C) ST-Ericsson SA 2011
+ *
+ * Author: BIBEK BASU <bibek.basu@stericsson.com>
+ * License terms: GNU General Public License (GPL) version 2
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/gpio.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <linux/mfd/ab8500.h>
+#include <linux/mfd/abx500.h>
+#include <linux/mfd/ab8500/gpio.h>
+
+/*
+ * GPIO registers offset
+ * Bank: 0x10
+ */
+#define AB8500_GPIO_SEL1_REG	0x00
+#define AB8500_GPIO_SEL2_REG	0x01
+#define AB8500_GPIO_SEL3_REG	0x02
+#define AB8500_GPIO_SEL4_REG	0x03
+#define AB8500_GPIO_SEL5_REG	0x04
+#define AB8500_GPIO_SEL6_REG	0x05
+
+#define AB8500_GPIO_DIR1_REG	0x10
+#define AB8500_GPIO_DIR2_REG	0x11
+#define AB8500_GPIO_DIR3_REG	0x12
+#define AB8500_GPIO_DIR4_REG	0x13
+#define AB8500_GPIO_DIR5_REG	0x14
+#define AB8500_GPIO_DIR6_REG	0x15
+
+#define AB8500_GPIO_OUT1_REG	0x20
+#define AB8500_GPIO_OUT2_REG	0x21
+#define AB8500_GPIO_OUT3_REG	0x22
+#define AB8500_GPIO_OUT4_REG	0x23
+#define AB8500_GPIO_OUT5_REG	0x24
+#define AB8500_GPIO_OUT6_REG	0x25
+
+#define AB8500_GPIO_PUD1_REG	0x30
+#define AB8500_GPIO_PUD2_REG	0x31
+#define AB8500_GPIO_PUD3_REG	0x32
+#define AB8500_GPIO_PUD4_REG	0x33
+#define AB8500_GPIO_PUD5_REG	0x34
+#define AB8500_GPIO_PUD6_REG	0x35
+
+#define AB8500_GPIO_IN1_REG	0x40
+#define AB8500_GPIO_IN2_REG	0x41
+#define AB8500_GPIO_IN3_REG	0x42
+#define AB8500_GPIO_IN4_REG	0x43
+#define AB8500_GPIO_IN5_REG	0x44
+#define AB8500_GPIO_IN6_REG	0x45
+#define AB8500_GPIO_ALTFUN_REG	0x45
+#define ALTFUN_REG_INDEX	6
+#define AB8500_NUM_GPIO		42
+#define AB8500_NUM_VIR_GPIO_IRQ	16
+
+enum ab8500_gpio_action {
+	NONE,
+	STARTUP,
+	SHUTDOWN,
+	MASK,
+	UNMASK
+};
+
+struct ab8500_gpio {
+	struct gpio_chip chip;
+	struct ab8500 *parent;
+	struct device *dev;
+	struct mutex lock;
+	u32 irq_base;
+	enum ab8500_gpio_action irq_action;
+	u16 rising;
+	u16 falling;
+};
+/**
+ * to_ab8500_gpio() - get the pointer to ab8500_gpio
+ * @chip:	Member of the structure ab8500_gpio
+ */
+static inline struct ab8500_gpio *to_ab8500_gpio(struct gpio_chip *chip)
+{
+	return container_of(chip, struct ab8500_gpio, chip);
+}
+
+static int ab8500_gpio_set_bits(struct gpio_chip *chip, u8 reg,
+					unsigned offset, int val)
+{
+	struct ab8500_gpio *ab8500_gpio = to_ab8500_gpio(chip);
+	u8 pos = offset % 8;
+	int ret;
+
+	reg = reg + (offset / 8);
+	ret = abx500_mask_and_set_register_interruptible(ab8500_gpio->dev,
+				AB8500_MISC, reg, 1 << pos, val << pos);
+	if (ret < 0)
+		dev_err(ab8500_gpio->dev, "%s write failed\n", __func__);
+	return ret;
+}
+/**
+ * ab8500_gpio_get() - Get the particular GPIO value
+ * @chip: Gpio device
+ * @offset: GPIO number to read
+ */
+static int ab8500_gpio_get(struct gpio_chip *chip, unsigned offset)
+{
+	struct ab8500_gpio *ab8500_gpio = to_ab8500_gpio(chip);
+	u8 mask = 1 << (offset % 8);
+	u8 reg = AB8500_GPIO_OUT1_REG + (offset / 8);
+	int ret;
+	u8 data;
+	ret = abx500_get_register_interruptible(ab8500_gpio->dev, AB8500_MISC,
+						reg, &data);
+	if (ret < 0) {
+		dev_err(ab8500_gpio->dev, "%s read failed\n", __func__);
+		return ret;
+	}
+	return (data & mask) >> (offset % 8);
+}
+
+static void ab8500_gpio_set(struct gpio_chip *chip, unsigned offset, int val)
+{
+	struct ab8500_gpio *ab8500_gpio = to_ab8500_gpio(chip);
+	int ret;
+	/* Write the data */
+	ret = ab8500_gpio_set_bits(chip, AB8500_GPIO_OUT1_REG, offset, 1);
+	if (ret < 0)
+		dev_err(ab8500_gpio->dev, "%s write failed\n", __func__);
+}
+
+static int ab8500_gpio_direction_output(struct gpio_chip *chip, unsigned offset,
+					int val)
+{
+	int ret;
+	/* set direction as output */
+	ret = ab8500_gpio_set_bits(chip, AB8500_GPIO_DIR1_REG, offset, 1);
+	if (ret < 0)
+		return ret;
+	/* disable pull down */
+	ret = ab8500_gpio_set_bits(chip, AB8500_GPIO_PUD1_REG, offset, 1);
+	if (ret < 0)
+		return ret;
+	/* set the output as 1 or 0 */
+	return ab8500_gpio_set_bits(chip, AB8500_GPIO_OUT1_REG, offset, val);
+
+}
+
+static int ab8500_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
+{
+	/* set the register as input */
+	return ab8500_gpio_set_bits(chip, AB8500_GPIO_DIR1_REG, offset, 0);
+}
+
+static int ab8500_gpio_to_irq(struct gpio_chip *chip, unsigned offset)
+{
+	/*
+	 * Only some GPIOs are interrupt capable, and they are
+	 * organized in discontiguous clusters:
+	 *
+	 *	GPIO6 to GPIO13
+	 *	GPIO24 and GPIO25
+	 *	GPIO36 to GPIO41
+	 */
+	static struct ab8500_gpio_irq_cluster {
+		int start;
+		int end;
+	} clusters[] = {
+		{.start = 6,  .end = 13},
+		{.start = 24, .end = 25},
+		{.start = 36, .end = 41},
+	};
+	struct ab8500_gpio *ab8500_gpio = to_ab8500_gpio(chip);
+	int base = ab8500_gpio->irq_base;
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(clusters); i++) {
+		struct ab8500_gpio_irq_cluster *cluster = &clusters[i];
+
+		if (offset >= cluster->start && offset <= cluster->end)
+			return base + offset - cluster->start;
+
+		/* Advance by the number of gpios in this cluster */
+		base += cluster->end - cluster->start + 1;
+	}
+
+	return -EINVAL;
+}
+
+static struct gpio_chip ab8500gpio_chip = {
+	.label			= "ab8500_gpio",
+	.owner			= THIS_MODULE,
+	.direction_input	= ab8500_gpio_direction_input,
+	.get			= ab8500_gpio_get,
+	.direction_output	= ab8500_gpio_direction_output,
+	.set			= ab8500_gpio_set,
+	.to_irq			= ab8500_gpio_to_irq,
+};
+
+static unsigned int irq_to_rising(unsigned int irq)
+{
+	struct ab8500_gpio *ab8500_gpio = get_irq_chip_data(irq);
+	int offset = irq - ab8500_gpio->irq_base;
+	int new_irq = offset +  AB8500_INT_GPIO6R
+			+ ab8500_gpio->parent->irq_base;
+	return new_irq;
+}
+
+static unsigned int irq_to_falling(unsigned int irq)
+{
+	struct ab8500_gpio *ab8500_gpio = get_irq_chip_data(irq);
+	int offset = irq - ab8500_gpio->irq_base;
+	int new_irq = offset +  AB8500_INT_GPIO6F
+			+  ab8500_gpio->parent->irq_base;
+	return new_irq;
+
+}
+
+static unsigned int rising_to_irq(unsigned int irq, void *dev)
+{
+	struct ab8500_gpio *ab8500_gpio = dev;
+	int offset = irq - AB8500_INT_GPIO6R
+			- ab8500_gpio->parent->irq_base ;
+	int new_irq = offset + ab8500_gpio->irq_base;
+	return new_irq;
+}
+
+static unsigned int falling_to_irq(unsigned int irq, void *dev)
+{
+	struct ab8500_gpio *ab8500_gpio = dev;
+	int offset = irq - AB8500_INT_GPIO6F
+			- ab8500_gpio->parent->irq_base ;
+	int new_irq = offset + ab8500_gpio->irq_base;
+	return new_irq;
+
+}
+
+/*
+ * IRQ handler
+ */
+
+static irqreturn_t handle_rising(int irq, void *dev)
+{
+
+	handle_nested_irq(rising_to_irq(irq , dev));
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t handle_falling(int irq, void *dev)
+{
+
+	handle_nested_irq(falling_to_irq(irq, dev));
+	return IRQ_HANDLED;
+}
+
+static void ab8500_gpio_irq_lock(unsigned int irq)
+{
+	struct ab8500_gpio *ab8500_gpio = get_irq_chip_data(irq);
+	mutex_lock(&ab8500_gpio->lock);
+}
+
+static void ab8500_gpio_irq_sync_unlock(unsigned int irq)
+{
+	struct ab8500_gpio *ab8500_gpio = get_irq_chip_data(irq);
+	int offset = irq - ab8500_gpio->irq_base;
+	bool rising = ab8500_gpio->rising & BIT(offset);
+	bool falling = ab8500_gpio->falling & BIT(offset);
+	int ret;
+
+	switch (ab8500_gpio->irq_action)	{
+	case STARTUP:
+		if (rising)
+			ret = request_threaded_irq(irq_to_rising(irq),
+					NULL, handle_rising,
+					IRQF_TRIGGER_RISING,
+					"ab8500-gpio-r", ab8500_gpio);
+		if (falling)
+			ret = request_threaded_irq(irq_to_falling(irq),
+				       NULL, handle_falling,
+				       IRQF_TRIGGER_FALLING,
+				       "ab8500-gpio-f", ab8500_gpio);
+		break;
+	case SHUTDOWN:
+		if (rising)
+			free_irq(irq_to_rising(irq), ab8500_gpio);
+		if (falling)
+			free_irq(irq_to_falling(irq), ab8500_gpio);
+		break;
+	case MASK:
+		if (rising)
+			disable_irq(irq_to_rising(irq));
+		if (falling)
+			disable_irq(irq_to_falling(irq));
+		break;
+	case UNMASK:
+		if (rising)
+			enable_irq(irq_to_rising(irq));
+		if (falling)
+			enable_irq(irq_to_falling(irq));
+		break;
+	case NONE:
+		break;
+	}
+	ab8500_gpio->irq_action = NONE;
+	ab8500_gpio->rising &= ~(BIT(offset));
+	ab8500_gpio->falling &= ~(BIT(offset));
+	mutex_unlock(&ab8500_gpio->lock);
+}
+
+
+static void ab8500_gpio_irq_mask(unsigned int irq)
+{
+	struct ab8500_gpio *ab8500_gpio = get_irq_chip_data(irq);
+	ab8500_gpio->irq_action = MASK;
+}
+
+static void ab8500_gpio_irq_unmask(unsigned int irq)
+{
+	struct ab8500_gpio *ab8500_gpio = get_irq_chip_data(irq);
+	ab8500_gpio->irq_action = UNMASK;
+}
+
+static int ab8500_gpio_irq_set_type(unsigned int irq, unsigned int type)
+{
+	struct ab8500_gpio *ab8500_gpio = get_irq_chip_data(irq);
+	int offset = irq - ab8500_gpio->irq_base;
+
+	if (type == IRQ_TYPE_EDGE_BOTH) {
+		ab8500_gpio->rising =  BIT(offset);
+		ab8500_gpio->falling = BIT(offset);
+	} else if (type == IRQ_TYPE_EDGE_RISING) {
+		ab8500_gpio->rising =  BIT(offset);
+	} else  {
+		ab8500_gpio->falling = BIT(offset);
+	}
+	return 0;
+}
+
+unsigned int ab8500_gpio_irq_startup(unsigned int irq)
+{
+	struct ab8500_gpio *ab8500_gpio = get_irq_chip_data(irq);
+	ab8500_gpio->irq_action = STARTUP;
+	return 0;
+}
+
+void ab8500_gpio_irq_shutdown(unsigned int irq)
+{
+	struct ab8500_gpio *ab8500_gpio = get_irq_chip_data(irq);
+	ab8500_gpio->irq_action = SHUTDOWN;
+}
+
+static struct irq_chip ab8500_gpio_irq_chip = {
+	.name			= "ab8500-gpio",
+	.startup		= ab8500_gpio_irq_startup,
+	.shutdown		= ab8500_gpio_irq_shutdown,
+	.bus_lock		= ab8500_gpio_irq_lock,
+	.bus_sync_unlock	= ab8500_gpio_irq_sync_unlock,
+	.mask			= ab8500_gpio_irq_mask,
+	.unmask			= ab8500_gpio_irq_unmask,
+	.set_type		= ab8500_gpio_irq_set_type,
+};
+
+static int ab8500_gpio_irq_init(struct ab8500_gpio *ab8500_gpio)
+{
+	u32 base = ab8500_gpio->irq_base;
+	int irq;
+
+	for (irq = base; irq < base + AB8500_NUM_VIR_GPIO_IRQ ; irq++) {
+		set_irq_chip_data(irq, ab8500_gpio);
+		set_irq_chip_and_handler(irq, &ab8500_gpio_irq_chip,
+				handle_simple_irq);
+		set_irq_nested_thread(irq, 1);
+#ifdef CONFIG_ARM
+		set_irq_flags(irq, IRQF_VALID);
+#else
+		set_irq_noprobe(irq);
+#endif
+	}
+
+	return 0;
+}
+
+static void ab8500_gpio_irq_remove(struct ab8500_gpio *ab8500_gpio)
+{
+	int base = ab8500_gpio->irq_base;
+	int irq;
+
+	for (irq = base; irq < base + AB8500_NUM_VIR_GPIO_IRQ; irq++) {
+#ifdef CONFIG_ARM
+		set_irq_flags(irq, 0);
+#endif
+		set_irq_chip_and_handler(irq, NULL, NULL);
+		set_irq_chip_data(irq, NULL);
+	}
+}
+
+static int __devinit ab8500_gpio_probe(struct platform_device *pdev)
+{
+	struct ab8500_platform_data *ab8500_pdata =
+				dev_get_platdata(pdev->dev.parent);
+	struct ab8500_gpio_platform_data *pdata;
+	struct ab8500_gpio *ab8500_gpio;
+	int ret;
+	int i;
+
+	pdata = ab8500_pdata->gpio;
+	if (!pdata)	{
+		dev_err(&pdev->dev, "gpio platform data missing\n");
+		return -ENODEV;
+	}
+
+	ab8500_gpio = kzalloc(sizeof(struct ab8500_gpio), GFP_KERNEL);
+	if (ab8500_gpio == NULL) {
+		dev_err(&pdev->dev, "failed to allocate memory\n");
+		return -ENOMEM;
+	}
+	ab8500_gpio->dev = &pdev->dev;
+	ab8500_gpio->parent = dev_get_drvdata(pdev->dev.parent);
+	ab8500_gpio->chip = ab8500gpio_chip;
+	ab8500_gpio->chip.ngpio = AB8500_NUM_GPIO;
+	ab8500_gpio->chip.dev = &pdev->dev;
+	ab8500_gpio->chip.base = pdata->gpio_base;
+	ab8500_gpio->irq_base = pdata->irq_base;
+	/* initialize the lock */
+	mutex_init(&ab8500_gpio->lock);
+	/*
+	 * AB8500 core will handle and clear the IRQ
+	 * configre GPIO based on config-reg value.
+	 * These values are for selecting the PINs as
+	 * GPIO or alternate function
+	 */
+	for (i = AB8500_GPIO_SEL1_REG; i <= AB8500_GPIO_SEL6_REG; i++)	{
+		ret = abx500_set_register_interruptible(ab8500_gpio->dev,
+				AB8500_MISC, i,
+				pdata->config_reg[i]);
+		if (ret < 0)
+			goto out_free;
+	}
+	ret = abx500_set_register_interruptible(ab8500_gpio->dev, AB8500_MISC,
+				AB8500_GPIO_ALTFUN_REG,
+				pdata->config_reg[ALTFUN_REG_INDEX]);
+	if (ret < 0)
+		goto out_free;
+
+	ret = ab8500_gpio_irq_init(ab8500_gpio);
+	if (ret)
+		goto out_free;
+	ret = gpiochip_add(&ab8500_gpio->chip);
+	if (ret) {
+		dev_err(&pdev->dev, "unable to add gpiochip: %d\n",
+				ret);
+		goto out_rem_irq;
+	}
+	platform_set_drvdata(pdev, ab8500_gpio);
+	return 0;
+
+out_rem_irq:
+	ab8500_gpio_irq_remove(ab8500_gpio);
+out_free:
+	mutex_destroy(&ab8500_gpio->lock);
+	kfree(ab8500_gpio);
+	return ret;
+}
+
+/*
+ * ab8500_gpio_remove() - remove Ab8500-gpio driver
+ * @pdev :	Platform device registered
+ */
+static int __devexit ab8500_gpio_remove(struct platform_device *pdev)
+{
+	struct ab8500_gpio *ab8500_gpio = platform_get_drvdata(pdev);
+	int ret;
+
+	ret = gpiochip_remove(&ab8500_gpio->chip);
+	if (ret < 0) {
+		dev_err(ab8500_gpio->dev, "unable to remove gpiochip:\
+				%d\n", ret);
+		return ret;
+	}
+
+	platform_set_drvdata(pdev, NULL);
+	mutex_destroy(&ab8500_gpio->lock);
+	kfree(ab8500_gpio);
+
+	return 0;
+}
+
+static struct platform_driver ab8500_gpio_driver = {
+	.driver = {
+		.name = "ab8500-gpio",
+		.owner = THIS_MODULE,
+	},
+	.probe = ab8500_gpio_probe,
+	.remove = __devexit_p(ab8500_gpio_remove),
+};
+
+static int __init ab8500_gpio_init(void)
+{
+	return platform_driver_register(&ab8500_gpio_driver);
+}
+arch_initcall(ab8500_gpio_init);
+
+static void __exit ab8500_gpio_exit(void)
+{
+	platform_driver_unregister(&ab8500_gpio_driver);
+}
+module_exit(ab8500_gpio_exit);
+
+MODULE_AUTHOR("BIBEK BASU <bibek.basu@stericsson.com>");
+MODULE_DESCRIPTION("Driver allows to use AB8500 unused pins\
+			to be used as GPIO");
+MODULE_ALIAS("AB8500 GPIO driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/gpio/adp5588-gpio.c b/drivers/gpio/adp5588-gpio.c
index 33fc685cb385..3525ad918771 100644
--- a/drivers/gpio/adp5588-gpio.c
+++ b/drivers/gpio/adp5588-gpio.c
@@ -289,10 +289,10 @@ static int adp5588_irq_setup(struct adp5588_gpio *dev)
 
 	for (gpio = 0; gpio < dev->gpio_chip.ngpio; gpio++) {
 		int irq = gpio + dev->irq_base;
-		set_irq_chip_data(irq, dev);
-		set_irq_chip_and_handler(irq, &adp5588_irq_chip,
+		irq_set_chip_data(irq, dev);
+		irq_set_chip_and_handler(irq, &adp5588_irq_chip,
 					 handle_level_irq);
-		set_irq_nested_thread(irq, 1);
+		irq_set_nested_thread(irq, 1);
 #ifdef CONFIG_ARM
 		/*
 		 * ARM needs us to explicitly flag the IRQ as VALID,
@@ -300,7 +300,7 @@ static int adp5588_irq_setup(struct adp5588_gpio *dev)
 		 */
 		set_irq_flags(irq, IRQF_VALID);
 #else
-		set_irq_noprobe(irq);
+		irq_set_noprobe(irq);
 #endif
 	}
 
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 649550e2cae9..36a2974815b7 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -1656,51 +1656,6 @@ static void gpiolib_dbg_show(struct seq_file *s, struct gpio_chip *chip)
 			chip->get
 				? (chip->get(chip, i) ? "hi" : "lo")
 				: "?  ");
-
-		if (!is_out) {
-			int		irq = gpio_to_irq(gpio);
-			struct irq_desc	*desc = irq_to_desc(irq);
-
-			/* This races with request_irq(), set_irq_type(),
-			 * and set_irq_wake() ... but those are "rare".
-			 *
-			 * More significantly, trigger type flags aren't
-			 * currently maintained by genirq.
-			 */
-			if (irq >= 0 && desc->action) {
-				char *trigger;
-
-				switch (desc->status & IRQ_TYPE_SENSE_MASK) {
-				case IRQ_TYPE_NONE:
-					trigger = "(default)";
-					break;
-				case IRQ_TYPE_EDGE_FALLING:
-					trigger = "edge-falling";
-					break;
-				case IRQ_TYPE_EDGE_RISING:
-					trigger = "edge-rising";
-					break;
-				case IRQ_TYPE_EDGE_BOTH:
-					trigger = "edge-both";
-					break;
-				case IRQ_TYPE_LEVEL_HIGH:
-					trigger = "level-high";
-					break;
-				case IRQ_TYPE_LEVEL_LOW:
-					trigger = "level-low";
-					break;
-				default:
-					trigger = "?trigger?";
-					break;
-				}
-
-				seq_printf(s, " irq-%d %s%s",
-					irq, trigger,
-					(desc->status & IRQ_WAKEUP)
-						? " wakeup" : "");
-			}
-		}
-
 		seq_printf(s, "\n");
 	}
 }
diff --git a/drivers/gpio/max732x.c b/drivers/gpio/max732x.c
index 9e1d01f0071a..ad6951edc16c 100644
--- a/drivers/gpio/max732x.c
+++ b/drivers/gpio/max732x.c
@@ -470,14 +470,14 @@ static int max732x_irq_setup(struct max732x_chip *chip,
 			if (!(chip->dir_input & (1 << lvl)))
 				continue;
 
-			set_irq_chip_data(irq, chip);
-			set_irq_chip_and_handler(irq, &max732x_irq_chip,
+			irq_set_chip_data(irq, chip);
+			irq_set_chip_and_handler(irq, &max732x_irq_chip,
 						 handle_edge_irq);
-			set_irq_nested_thread(irq, 1);
+			irq_set_nested_thread(irq, 1);
 #ifdef CONFIG_ARM
 			set_irq_flags(irq, IRQF_VALID);
 #else
-			set_irq_noprobe(irq);
+			irq_set_noprobe(irq);
 #endif
 		}
 
diff --git a/drivers/gpio/mc33880.c b/drivers/gpio/mc33880.c
index 00f6d24c669d..4ec797593bdb 100644
--- a/drivers/gpio/mc33880.c
+++ b/drivers/gpio/mc33880.c
@@ -45,7 +45,7 @@
  * To save time we cache them here in memory
  */
 struct mc33880 {
-	struct mutex	lock;	/* protect from simultanous accesses */
+	struct mutex	lock;	/* protect from simultaneous accesses */
 	u8		port_config;
 	struct gpio_chip chip;
 	struct spi_device *spi;
diff --git a/drivers/gpio/pca953x.c b/drivers/gpio/pca953x.c
index 2fc25dec7cf5..583e92592073 100644
--- a/drivers/gpio/pca953x.c
+++ b/drivers/gpio/pca953x.c
@@ -395,13 +395,13 @@ static int pca953x_irq_setup(struct pca953x_chip *chip,
 		for (lvl = 0; lvl < chip->gpio_chip.ngpio; lvl++) {
 			int irq = lvl + chip->irq_base;
 
-			set_irq_chip_data(irq, chip);
-			set_irq_chip_and_handler(irq, &pca953x_irq_chip,
+			irq_set_chip_data(irq, chip);
+			irq_set_chip_and_handler(irq, &pca953x_irq_chip,
 						 handle_edge_irq);
 #ifdef CONFIG_ARM
 			set_irq_flags(irq, IRQF_VALID);
 #else
-			set_irq_noprobe(irq);
+			irq_set_noprobe(irq);
 #endif
 		}
 
diff --git a/drivers/gpio/pl061.c b/drivers/gpio/pl061.c
index 838ddbdf90cc..6fcb28cdd862 100644
--- a/drivers/gpio/pl061.c
+++ b/drivers/gpio/pl061.c
@@ -210,7 +210,7 @@ static struct irq_chip pl061_irqchip = {
 
 static void pl061_irq_handler(unsigned irq, struct irq_desc *desc)
 {
-	struct list_head *chip_list = get_irq_data(irq);
+	struct list_head *chip_list = irq_get_handler_data(irq);
 	struct list_head *ptr;
 	struct pl061_gpio *chip;
 
@@ -294,7 +294,7 @@ static int pl061_probe(struct amba_device *dev, const struct amba_id *id)
 		ret = -ENODEV;
 		goto iounmap;
 	}
-	set_irq_chained_handler(irq, pl061_irq_handler);
+	irq_set_chained_handler(irq, pl061_irq_handler);
 	if (!test_and_set_bit(irq, init_irq)) { /* list initialized? */
 		chip_list = kmalloc(sizeof(*chip_list), GFP_KERNEL);
 		if (chip_list == NULL) {
@@ -303,9 +303,9 @@ static int pl061_probe(struct amba_device *dev, const struct amba_id *id)
 			goto iounmap;
 		}
 		INIT_LIST_HEAD(chip_list);
-		set_irq_data(irq, chip_list);
+		irq_set_handler_data(irq, chip_list);
 	} else
-		chip_list = get_irq_data(irq);
+		chip_list = irq_get_handler_data(irq);
 	list_add(&chip->list, chip_list);
 
 	for (i = 0; i < PL061_GPIO_NR; i++) {
@@ -315,10 +315,10 @@ static int pl061_probe(struct amba_device *dev, const struct amba_id *id)
 		else
 			pl061_direction_input(&chip->gc, i);
 
-		set_irq_chip(i+chip->irq_base, &pl061_irqchip);
-		set_irq_handler(i+chip->irq_base, handle_simple_irq);
+		irq_set_chip_and_handler(i + chip->irq_base, &pl061_irqchip,
+					 handle_simple_irq);
 		set_irq_flags(i+chip->irq_base, IRQF_VALID);
-		set_irq_chip_data(i+chip->irq_base, chip);
+		irq_set_chip_data(i + chip->irq_base, chip);
 	}
 
 	return 0;
diff --git a/drivers/gpio/stmpe-gpio.c b/drivers/gpio/stmpe-gpio.c
index eb2901f8ab5e..4c980b573328 100644
--- a/drivers/gpio/stmpe-gpio.c
+++ b/drivers/gpio/stmpe-gpio.c
@@ -254,14 +254,14 @@ static int __devinit stmpe_gpio_irq_init(struct stmpe_gpio *stmpe_gpio)
 	int irq;
 
 	for (irq = base; irq < base + stmpe_gpio->chip.ngpio; irq++) {
-		set_irq_chip_data(irq, stmpe_gpio);
-		set_irq_chip_and_handler(irq, &stmpe_gpio_irq_chip,
+		irq_set_chip_data(irq, stmpe_gpio);
+		irq_set_chip_and_handler(irq, &stmpe_gpio_irq_chip,
 					 handle_simple_irq);
-		set_irq_nested_thread(irq, 1);
+		irq_set_nested_thread(irq, 1);
 #ifdef CONFIG_ARM
 		set_irq_flags(irq, IRQF_VALID);
 #else
-		set_irq_noprobe(irq);
+		irq_set_noprobe(irq);
 #endif
 	}
 
@@ -277,8 +277,8 @@ static void stmpe_gpio_irq_remove(struct stmpe_gpio *stmpe_gpio)
 #ifdef CONFIG_ARM
 		set_irq_flags(irq, 0);
 #endif
-		set_irq_chip_and_handler(irq, NULL, NULL);
-		set_irq_chip_data(irq, NULL);
+		irq_set_chip_and_handler(irq, NULL, NULL);
+		irq_set_chip_data(irq, NULL);
 	}
 }
 
diff --git a/drivers/gpio/sx150x.c b/drivers/gpio/sx150x.c
index d2f874c3d3d5..a4f73534394e 100644
--- a/drivers/gpio/sx150x.c
+++ b/drivers/gpio/sx150x.c
@@ -551,12 +551,12 @@ static int sx150x_install_irq_chip(struct sx150x_chip *chip,
 
 	for (n = 0; n < chip->dev_cfg->ngpios; ++n) {
 		irq = irq_base + n;
-		set_irq_chip_and_handler(irq, &chip->irq_chip, handle_edge_irq);
-		set_irq_nested_thread(irq, 1);
+		irq_set_chip_and_handler(irq, &chip->irq_chip, handle_edge_irq);
+		irq_set_nested_thread(irq, 1);
 #ifdef CONFIG_ARM
 		set_irq_flags(irq, IRQF_VALID);
 #else
-		set_irq_noprobe(irq);
+		irq_set_noprobe(irq);
 #endif
 	}
 
@@ -583,8 +583,7 @@ static void sx150x_remove_irq_chip(struct sx150x_chip *chip)
 
 	for (n = 0; n < chip->dev_cfg->ngpios; ++n) {
 		irq = chip->irq_base + n;
-		set_irq_handler(irq, NULL);
-		set_irq_chip(irq, NULL);
+		irq_set_chip_and_handler(irq, NULL, NULL);
 	}
 }
 
diff --git a/drivers/gpio/tc3589x-gpio.c b/drivers/gpio/tc3589x-gpio.c
index 27200af1a595..2a82e8999a42 100644
--- a/drivers/gpio/tc3589x-gpio.c
+++ b/drivers/gpio/tc3589x-gpio.c
@@ -239,14 +239,14 @@ static int tc3589x_gpio_irq_init(struct tc3589x_gpio *tc3589x_gpio)
 	int irq;
 
 	for (irq = base; irq < base + tc3589x_gpio->chip.ngpio; irq++) {
-		set_irq_chip_data(irq, tc3589x_gpio);
-		set_irq_chip_and_handler(irq, &tc3589x_gpio_irq_chip,
+		irq_set_chip_data(irq, tc3589x_gpio);
+		irq_set_chip_and_handler(irq, &tc3589x_gpio_irq_chip,
 					 handle_simple_irq);
-		set_irq_nested_thread(irq, 1);
+		irq_set_nested_thread(irq, 1);
 #ifdef CONFIG_ARM
 		set_irq_flags(irq, IRQF_VALID);
 #else
-		set_irq_noprobe(irq);
+		irq_set_noprobe(irq);
 #endif
 	}
 
@@ -262,8 +262,8 @@ static void tc3589x_gpio_irq_remove(struct tc3589x_gpio *tc3589x_gpio)
 #ifdef CONFIG_ARM
 		set_irq_flags(irq, 0);
 #endif
-		set_irq_chip_and_handler(irq, NULL, NULL);
-		set_irq_chip_data(irq, NULL);
+		irq_set_chip_and_handler(irq, NULL, NULL);
+		irq_set_chip_data(irq, NULL);
 	}
 }
 
diff --git a/drivers/gpio/timbgpio.c b/drivers/gpio/timbgpio.c
index ffcd815b8b8b..edbe1eae531f 100644
--- a/drivers/gpio/timbgpio.c
+++ b/drivers/gpio/timbgpio.c
@@ -196,7 +196,7 @@ out:
 
 static void timbgpio_irq(unsigned int irq, struct irq_desc *desc)
 {
-	struct timbgpio *tgpio = get_irq_data(irq);
+	struct timbgpio *tgpio = irq_get_handler_data(irq);
 	unsigned long ipr;
 	int offset;
 
@@ -292,16 +292,16 @@ static int __devinit timbgpio_probe(struct platform_device *pdev)
 		return 0;
 
 	for (i = 0; i < pdata->nr_pins; i++) {
-		set_irq_chip_and_handler_name(tgpio->irq_base + i,
+		irq_set_chip_and_handler_name(tgpio->irq_base + i,
 			&timbgpio_irqchip, handle_simple_irq, "mux");
-		set_irq_chip_data(tgpio->irq_base + i, tgpio);
+		irq_set_chip_data(tgpio->irq_base + i, tgpio);
 #ifdef CONFIG_ARM
 		set_irq_flags(tgpio->irq_base + i, IRQF_VALID | IRQF_PROBE);
 #endif
 	}
 
-	set_irq_data(irq, tgpio);
-	set_irq_chained_handler(irq, timbgpio_irq);
+	irq_set_handler_data(irq, tgpio);
+	irq_set_chained_handler(irq, timbgpio_irq);
 
 	return 0;
 
@@ -327,12 +327,12 @@ static int __devexit timbgpio_remove(struct platform_device *pdev)
 	if (irq >= 0 && tgpio->irq_base > 0) {
 		int i;
 		for (i = 0; i < tgpio->gpio.ngpio; i++) {
-			set_irq_chip(tgpio->irq_base + i, NULL);
-			set_irq_chip_data(tgpio->irq_base + i, NULL);
+			irq_set_chip(tgpio->irq_base + i, NULL);
+			irq_set_chip_data(tgpio->irq_base + i, NULL);
 		}
 
-		set_irq_handler(irq, NULL);
-		set_irq_data(irq, NULL);
+		irq_set_handler(irq, NULL);
+		irq_set_handler_data(irq, NULL);
 	}
 
 	err = gpiochip_remove(&tgpio->gpio);
diff --git a/drivers/gpio/vr41xx_giu.c b/drivers/gpio/vr41xx_giu.c
index cffa3bd7ad3b..a365be040b36 100644
--- a/drivers/gpio/vr41xx_giu.c
+++ b/drivers/gpio/vr41xx_giu.c
@@ -238,13 +238,13 @@ void vr41xx_set_irq_trigger(unsigned int pin, irq_trigger_t trigger,
 					break;
 				}
 			}
-			set_irq_chip_and_handler(GIU_IRQ(pin),
+			irq_set_chip_and_handler(GIU_IRQ(pin),
 						 &giuint_low_irq_chip,
 						 handle_edge_irq);
 		} else {
 			giu_clear(GIUINTTYPL, mask);
 			giu_clear(GIUINTHTSELL, mask);
-			set_irq_chip_and_handler(GIU_IRQ(pin),
+			irq_set_chip_and_handler(GIU_IRQ(pin),
 						 &giuint_low_irq_chip,
 						 handle_level_irq);
 		}
@@ -273,13 +273,13 @@ void vr41xx_set_irq_trigger(unsigned int pin, irq_trigger_t trigger,
 					break;
 				}
 			}
-			set_irq_chip_and_handler(GIU_IRQ(pin),
+			irq_set_chip_and_handler(GIU_IRQ(pin),
 						 &giuint_high_irq_chip,
 						 handle_edge_irq);
 		} else {
 			giu_clear(GIUINTTYPH, mask);
 			giu_clear(GIUINTHTSELH, mask);
-			set_irq_chip_and_handler(GIU_IRQ(pin),
+			irq_set_chip_and_handler(GIU_IRQ(pin),
 						 &giuint_high_irq_chip,
 						 handle_level_irq);
 		}
@@ -539,9 +539,9 @@ static int __devinit giu_probe(struct platform_device *pdev)
 			chip = &giuint_high_irq_chip;
 
 		if (trigger & (1 << pin))
-			set_irq_chip_and_handler(i, chip, handle_edge_irq);
+			irq_set_chip_and_handler(i, chip, handle_edge_irq);
 		else
-			set_irq_chip_and_handler(i, chip, handle_level_irq);
+			irq_set_chip_and_handler(i, chip, handle_level_irq);
 
 	}
 
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index 4c95b5fd9df3..872747c5a544 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -1073,6 +1073,9 @@ int drm_mode_getresources(struct drm_device *dev, void *data,
 	uint32_t __user *encoder_id;
 	struct drm_mode_group *mode_group;
 
+	if (!drm_core_check_feature(dev, DRIVER_MODESET))
+		return -EINVAL;
+
 	mutex_lock(&dev->mode_config.mutex);
 
 	/*
@@ -1244,6 +1247,9 @@ int drm_mode_getcrtc(struct drm_device *dev,
 	struct drm_mode_object *obj;
 	int ret = 0;
 
+	if (!drm_core_check_feature(dev, DRIVER_MODESET))
+		return -EINVAL;
+
 	mutex_lock(&dev->mode_config.mutex);
 
 	obj = drm_mode_object_find(dev, crtc_resp->crtc_id,
@@ -1312,6 +1318,9 @@ int drm_mode_getconnector(struct drm_device *dev, void *data,
 	uint64_t __user *prop_values;
 	uint32_t __user *encoder_ptr;
 
+	if (!drm_core_check_feature(dev, DRIVER_MODESET))
+		return -EINVAL;
+
 	memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo));
 
 	DRM_DEBUG_KMS("[CONNECTOR:%d:?]\n", out_resp->connector_id);
@@ -1431,6 +1440,9 @@ int drm_mode_getencoder(struct drm_device *dev, void *data,
 	struct drm_encoder *encoder;
 	int ret = 0;
 
+	if (!drm_core_check_feature(dev, DRIVER_MODESET))
+		return -EINVAL;
+
 	mutex_lock(&dev->mode_config.mutex);
 	obj = drm_mode_object_find(dev, enc_resp->encoder_id,
 				   DRM_MODE_OBJECT_ENCODER);
@@ -1486,6 +1498,9 @@ int drm_mode_setcrtc(struct drm_device *dev, void *data,
 	int ret = 0;
 	int i;
 
+	if (!drm_core_check_feature(dev, DRIVER_MODESET))
+		return -EINVAL;
+
 	mutex_lock(&dev->mode_config.mutex);
 	obj = drm_mode_object_find(dev, crtc_req->crtc_id,
 				   DRM_MODE_OBJECT_CRTC);
@@ -1603,6 +1618,9 @@ int drm_mode_cursor_ioctl(struct drm_device *dev,
 	struct drm_crtc *crtc;
 	int ret = 0;
 
+	if (!drm_core_check_feature(dev, DRIVER_MODESET))
+		return -EINVAL;
+
 	if (!req->flags) {
 		DRM_ERROR("no operation set\n");
 		return -EINVAL;
@@ -1667,6 +1685,9 @@ int drm_mode_addfb(struct drm_device *dev,
 	struct drm_framebuffer *fb;
 	int ret = 0;
 
+	if (!drm_core_check_feature(dev, DRIVER_MODESET))
+		return -EINVAL;
+
 	if ((config->min_width > r->width) || (r->width > config->max_width)) {
 		DRM_ERROR("mode new framebuffer width not within limits\n");
 		return -EINVAL;
@@ -1678,7 +1699,7 @@ int drm_mode_addfb(struct drm_device *dev,
 
 	mutex_lock(&dev->mode_config.mutex);
 
-	/* TODO check buffer is sufficently large */
+	/* TODO check buffer is sufficiently large */
 	/* TODO setup destructor callback */
 
 	fb = dev->mode_config.funcs->fb_create(dev, file_priv, r);
@@ -1724,9 +1745,12 @@ int drm_mode_rmfb(struct drm_device *dev,
 	int ret = 0;
 	int found = 0;
 
+	if (!drm_core_check_feature(dev, DRIVER_MODESET))
+		return -EINVAL;
+
 	mutex_lock(&dev->mode_config.mutex);
 	obj = drm_mode_object_find(dev, *id, DRM_MODE_OBJECT_FB);
-	/* TODO check that we realy get a framebuffer back. */
+	/* TODO check that we really get a framebuffer back. */
 	if (!obj) {
 		DRM_ERROR("mode invalid framebuffer id\n");
 		ret = -EINVAL;
@@ -1780,6 +1804,9 @@ int drm_mode_getfb(struct drm_device *dev,
 	struct drm_framebuffer *fb;
 	int ret = 0;
 
+	if (!drm_core_check_feature(dev, DRIVER_MODESET))
+		return -EINVAL;
+
 	mutex_lock(&dev->mode_config.mutex);
 	obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB);
 	if (!obj) {
@@ -1813,6 +1840,9 @@ int drm_mode_dirtyfb_ioctl(struct drm_device *dev,
 	int num_clips;
 	int ret = 0;
 
+	if (!drm_core_check_feature(dev, DRIVER_MODESET))
+		return -EINVAL;
+
 	mutex_lock(&dev->mode_config.mutex);
 	obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB);
 	if (!obj) {
@@ -1996,6 +2026,9 @@ int drm_mode_attachmode_ioctl(struct drm_device *dev,
 	struct drm_mode_modeinfo *umode = &mode_cmd->mode;
 	int ret = 0;
 
+	if (!drm_core_check_feature(dev, DRIVER_MODESET))
+		return -EINVAL;
+
 	mutex_lock(&dev->mode_config.mutex);
 
 	obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR);
@@ -2042,6 +2075,9 @@ int drm_mode_detachmode_ioctl(struct drm_device *dev,
 	struct drm_mode_modeinfo *umode = &mode_cmd->mode;
 	int ret = 0;
 
+	if (!drm_core_check_feature(dev, DRIVER_MODESET))
+		return -EINVAL;
+
 	mutex_lock(&dev->mode_config.mutex);
 
 	obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR);
@@ -2211,6 +2247,9 @@ int drm_mode_getproperty_ioctl(struct drm_device *dev,
 	uint64_t __user *values_ptr;
 	uint32_t __user *blob_length_ptr;
 
+	if (!drm_core_check_feature(dev, DRIVER_MODESET))
+		return -EINVAL;
+
 	mutex_lock(&dev->mode_config.mutex);
 	obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY);
 	if (!obj) {
@@ -2333,6 +2372,9 @@ int drm_mode_getblob_ioctl(struct drm_device *dev,
 	int ret = 0;
 	void *blob_ptr;
 
+	if (!drm_core_check_feature(dev, DRIVER_MODESET))
+		return -EINVAL;
+
 	mutex_lock(&dev->mode_config.mutex);
 	obj = drm_mode_object_find(dev, out_resp->blob_id, DRM_MODE_OBJECT_BLOB);
 	if (!obj) {
@@ -2393,6 +2435,9 @@ int drm_mode_connector_property_set_ioctl(struct drm_device *dev,
 	int ret = -EINVAL;
 	int i;
 
+	if (!drm_core_check_feature(dev, DRIVER_MODESET))
+		return -EINVAL;
+
 	mutex_lock(&dev->mode_config.mutex);
 
 	obj = drm_mode_object_find(dev, out_resp->connector_id, DRM_MODE_OBJECT_CONNECTOR);
@@ -2509,6 +2554,9 @@ int drm_mode_gamma_set_ioctl(struct drm_device *dev,
 	int size;
 	int ret = 0;
 
+	if (!drm_core_check_feature(dev, DRIVER_MODESET))
+		return -EINVAL;
+
 	mutex_lock(&dev->mode_config.mutex);
 	obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
 	if (!obj) {
@@ -2560,6 +2608,9 @@ int drm_mode_gamma_get_ioctl(struct drm_device *dev,
 	int size;
 	int ret = 0;
 
+	if (!drm_core_check_feature(dev, DRIVER_MODESET))
+		return -EINVAL;
+
 	mutex_lock(&dev->mode_config.mutex);
 	obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
 	if (!obj) {
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 9c595e3b9c20..adc9358c9bec 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -1297,7 +1297,7 @@ add_detailed_modes(struct drm_connector *connector, struct edid *edid,
 /**
  * Search EDID for CEA extension block.
  */
-static u8 *drm_find_cea_extension(struct edid *edid)
+u8 *drm_find_cea_extension(struct edid *edid)
 {
 	u8 *edid_ext = NULL;
 	int i;
@@ -1318,6 +1318,7 @@ static u8 *drm_find_cea_extension(struct edid *edid)
 
 	return edid_ext;
 }
+EXPORT_SYMBOL(drm_find_cea_extension);
 
 /**
  * drm_detect_hdmi_monitor - detect whether monitor is hdmi.
diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c
index 57ce27c9a747..74e4ff578017 100644
--- a/drivers/gpu/drm/drm_gem.c
+++ b/drivers/gpu/drm/drm_gem.c
@@ -499,11 +499,12 @@ EXPORT_SYMBOL(drm_gem_vm_open);
 void drm_gem_vm_close(struct vm_area_struct *vma)
 {
 	struct drm_gem_object *obj = vma->vm_private_data;
+	struct drm_device *dev = obj->dev;
 
-	mutex_lock(&obj->dev->struct_mutex);
+	mutex_lock(&dev->struct_mutex);
 	drm_vm_close_locked(vma);
 	drm_gem_object_unreference(obj);
-	mutex_unlock(&obj->dev->struct_mutex);
+	mutex_unlock(&dev->struct_mutex);
 }
 EXPORT_SYMBOL(drm_gem_vm_close);
 
diff --git a/drivers/gpu/drm/drm_ioctl.c b/drivers/gpu/drm/drm_ioctl.c
index 7f6912a16761..904d7e9c8e47 100644
--- a/drivers/gpu/drm/drm_ioctl.c
+++ b/drivers/gpu/drm/drm_ioctl.c
@@ -280,6 +280,9 @@ int drm_getcap(struct drm_device *dev, void *data, struct drm_file *file_priv)
 		if (dev->driver->dumb_create)
 			req->value = 1;
 		break;
+	case DRM_CAP_VBLANK_HIGH_CRTC:
+		req->value = 1;
+		break;
 	default:
 		return -EINVAL;
 	}
diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c
index a34ef97d3c81..741457bd1c46 100644
--- a/drivers/gpu/drm/drm_irq.c
+++ b/drivers/gpu/drm/drm_irq.c
@@ -1125,7 +1125,7 @@ int drm_wait_vblank(struct drm_device *dev, void *data,
 {
 	union drm_wait_vblank *vblwait = data;
 	int ret = 0;
-	unsigned int flags, seq, crtc;
+	unsigned int flags, seq, crtc, high_crtc;
 
 	if ((!drm_dev_to_irq(dev)) || (!dev->irq_enabled))
 		return -EINVAL;
@@ -1134,16 +1134,21 @@ int drm_wait_vblank(struct drm_device *dev, void *data,
 		return -EINVAL;
 
 	if (vblwait->request.type &
-	    ~(_DRM_VBLANK_TYPES_MASK | _DRM_VBLANK_FLAGS_MASK)) {
+	    ~(_DRM_VBLANK_TYPES_MASK | _DRM_VBLANK_FLAGS_MASK |
+	      _DRM_VBLANK_HIGH_CRTC_MASK)) {
 		DRM_ERROR("Unsupported type value 0x%x, supported mask 0x%x\n",
 			  vblwait->request.type,
-			  (_DRM_VBLANK_TYPES_MASK | _DRM_VBLANK_FLAGS_MASK));
+			  (_DRM_VBLANK_TYPES_MASK | _DRM_VBLANK_FLAGS_MASK |
+			   _DRM_VBLANK_HIGH_CRTC_MASK));
 		return -EINVAL;
 	}
 
 	flags = vblwait->request.type & _DRM_VBLANK_FLAGS_MASK;
-	crtc = flags & _DRM_VBLANK_SECONDARY ? 1 : 0;
-
+	high_crtc = (vblwait->request.type & _DRM_VBLANK_HIGH_CRTC_MASK);
+	if (high_crtc)
+		crtc = high_crtc >> _DRM_VBLANK_HIGH_CRTC_SHIFT;
+	else
+		crtc = flags & _DRM_VBLANK_SECONDARY ? 1 : 0;
 	if (crtc >= dev->num_crtcs)
 		return -EINVAL;
 
diff --git a/drivers/gpu/drm/drm_mm.c b/drivers/gpu/drm/drm_mm.c
index add1737dae0d..5d00b0fc0d91 100644
--- a/drivers/gpu/drm/drm_mm.c
+++ b/drivers/gpu/drm/drm_mm.c
@@ -551,7 +551,7 @@ EXPORT_SYMBOL(drm_mm_scan_add_block);
  * corrupted.
  *
  * When the scan list is empty, the selected memory nodes can be freed. An
- * immediatly following drm_mm_search_free with best_match = 0 will then return
+ * immediately following drm_mm_search_free with best_match = 0 will then return
  * the just freed block (because its at the top of the free_stack list).
  *
  * Returns one if this block should be evicted, zero otherwise. Will always
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 09e0327fc6ce..87c8e29465e3 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -892,7 +892,7 @@ static int i915_cur_delayinfo(struct seq_file *m, void *unused)
 		seq_printf(m, "Render p-state limit: %d\n",
 			   rp_state_limits & 0xff);
 		seq_printf(m, "CAGF: %dMHz\n", ((rpstat & GEN6_CAGF_MASK) >>
-						GEN6_CAGF_SHIFT) * 100);
+						GEN6_CAGF_SHIFT) * 50);
 		seq_printf(m, "RP CUR UP EI: %dus\n", rpupei &
 			   GEN6_CURICONT_MASK);
 		seq_printf(m, "RP CUR UP: %dus\n", rpcurup &
@@ -908,15 +908,15 @@ static int i915_cur_delayinfo(struct seq_file *m, void *unused)
 
 		max_freq = (rp_state_cap & 0xff0000) >> 16;
 		seq_printf(m, "Lowest (RPN) frequency: %dMHz\n",
-			   max_freq * 100);
+			   max_freq * 50);
 
 		max_freq = (rp_state_cap & 0xff00) >> 8;
 		seq_printf(m, "Nominal (RP1) frequency: %dMHz\n",
-			   max_freq * 100);
+			   max_freq * 50);
 
 		max_freq = rp_state_cap & 0xff;
 		seq_printf(m, "Max non-overclocked (RP0) frequency: %dMHz\n",
-			   max_freq * 100);
+			   max_freq * 50);
 
 		__gen6_gt_force_wake_put(dev_priv);
 	} else {
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 5004724ea57e..1c1b27c97e5c 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -630,7 +630,7 @@ typedef struct drm_i915_private {
 		 * Flag if the hardware appears to be wedged.
 		 *
 		 * This is set when attempts to idle the device timeout.
-		 * It prevents command submission from occuring and makes
+		 * It prevents command submission from occurring and makes
 		 * every pending request fail
 		 */
 		atomic_t wedged;
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index c4c2855d002d..7ce3f353af33 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -224,7 +224,7 @@ i915_gem_dumb_create(struct drm_file *file,
 		     struct drm_mode_create_dumb *args)
 {
 	/* have to work out size/pitch and return them */
-	args->pitch = ALIGN(args->width & ((args->bpp + 1) / 8), 64);
+	args->pitch = ALIGN(args->width * ((args->bpp + 7) / 8), 64);
 	args->size = args->pitch * args->height;
 	return i915_gem_create(file, dev,
 			       args->size, &args->handle);
@@ -1356,9 +1356,10 @@ i915_gem_release_mmap(struct drm_i915_gem_object *obj)
 	if (!obj->fault_mappable)
 		return;
 
-	unmap_mapping_range(obj->base.dev->dev_mapping,
-			    (loff_t)obj->base.map_list.hash.key<<PAGE_SHIFT,
-			    obj->base.size, 1);
+	if (obj->base.dev->dev_mapping)
+		unmap_mapping_range(obj->base.dev->dev_mapping,
+				    (loff_t)obj->base.map_list.hash.key<<PAGE_SHIFT,
+				    obj->base.size, 1);
 
 	obj->fault_mappable = false;
 }
@@ -1796,8 +1797,10 @@ i915_gem_request_remove_from_client(struct drm_i915_gem_request *request)
 		return;
 
 	spin_lock(&file_priv->mm.lock);
-	list_del(&request->client_list);
-	request->file_priv = NULL;
+	if (request->file_priv) {
+		list_del(&request->client_list);
+		request->file_priv = NULL;
+	}
 	spin_unlock(&file_priv->mm.lock);
 }
 
@@ -2217,13 +2220,18 @@ i915_gem_flush_ring(struct intel_ring_buffer *ring,
 {
 	int ret;
 
+	if (((invalidate_domains | flush_domains) & I915_GEM_GPU_DOMAINS) == 0)
+		return 0;
+
 	trace_i915_gem_ring_flush(ring, invalidate_domains, flush_domains);
 
 	ret = ring->flush(ring, invalidate_domains, flush_domains);
 	if (ret)
 		return ret;
 
-	i915_gem_process_flushing_list(ring, flush_domains);
+	if (flush_domains & I915_GEM_GPU_DOMAINS)
+		i915_gem_process_flushing_list(ring, flush_domains);
+
 	return 0;
 }
 
@@ -2579,8 +2587,23 @@ i915_gem_object_get_fence(struct drm_i915_gem_object *obj,
 		reg = &dev_priv->fence_regs[obj->fence_reg];
 		list_move_tail(&reg->lru_list, &dev_priv->mm.fence_list);
 
-		if (!obj->fenced_gpu_access && !obj->last_fenced_seqno)
-			pipelined = NULL;
+		if (obj->tiling_changed) {
+			ret = i915_gem_object_flush_fence(obj, pipelined);
+			if (ret)
+				return ret;
+
+			if (!obj->fenced_gpu_access && !obj->last_fenced_seqno)
+				pipelined = NULL;
+
+			if (pipelined) {
+				reg->setup_seqno =
+					i915_gem_next_request_seqno(pipelined);
+				obj->last_fenced_seqno = reg->setup_seqno;
+				obj->last_fenced_ring = pipelined;
+			}
+
+			goto update;
+		}
 
 		if (!pipelined) {
 			if (reg->setup_seqno) {
@@ -2599,31 +2622,6 @@ i915_gem_object_get_fence(struct drm_i915_gem_object *obj,
 			ret = i915_gem_object_flush_fence(obj, pipelined);
 			if (ret)
 				return ret;
-		} else if (obj->tiling_changed) {
-			if (obj->fenced_gpu_access) {
-				if (obj->base.write_domain & I915_GEM_GPU_DOMAINS) {
-					ret = i915_gem_flush_ring(obj->ring,
-								  0, obj->base.write_domain);
-					if (ret)
-						return ret;
-				}
-
-				obj->fenced_gpu_access = false;
-			}
-		}
-
-		if (!obj->fenced_gpu_access && !obj->last_fenced_seqno)
-			pipelined = NULL;
-		BUG_ON(!pipelined && reg->setup_seqno);
-
-		if (obj->tiling_changed) {
-			if (pipelined) {
-				reg->setup_seqno =
-					i915_gem_next_request_seqno(pipelined);
-				obj->last_fenced_seqno = reg->setup_seqno;
-				obj->last_fenced_ring = pipelined;
-			}
-			goto update;
 		}
 
 		return 0;
@@ -3606,6 +3604,8 @@ static void i915_gem_free_object_tail(struct drm_i915_gem_object *obj)
 		return;
 	}
 
+	trace_i915_gem_object_destroy(obj);
+
 	if (obj->base.map_list.map)
 		i915_gem_free_mmap_offset(obj);
 
@@ -3615,8 +3615,6 @@ static void i915_gem_free_object_tail(struct drm_i915_gem_object *obj)
 	kfree(obj->page_cpu_valid);
 	kfree(obj->bit_17);
 	kfree(obj);
-
-	trace_i915_gem_object_destroy(obj);
 }
 
 void i915_gem_free_object(struct drm_gem_object *gem_obj)
diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
index 7ff7f933ddf1..20a4cc5b818f 100644
--- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
@@ -367,6 +367,10 @@ i915_gem_execbuffer_relocate_entry(struct drm_i915_gem_object *obj,
 		uint32_t __iomem *reloc_entry;
 		void __iomem *reloc_page;
 
+		/* We can't wait for rendering with pagefaults disabled */
+		if (obj->active && in_atomic())
+			return -EFAULT;
+
 		ret = i915_gem_object_set_to_gtt_domain(obj, 1);
 		if (ret)
 			return ret;
@@ -440,15 +444,24 @@ i915_gem_execbuffer_relocate(struct drm_device *dev,
 			     struct list_head *objects)
 {
 	struct drm_i915_gem_object *obj;
-	int ret;
-
+	int ret = 0;
+
+	/* This is the fast path and we cannot handle a pagefault whilst
+	 * holding the struct mutex lest the user pass in the relocations
+	 * contained within a mmaped bo. For in such a case we, the page
+	 * fault handler would call i915_gem_fault() and we would try to
+	 * acquire the struct mutex again. Obviously this is bad and so
+	 * lockdep complains vehemently.
+	 */
+	pagefault_disable();
 	list_for_each_entry(obj, objects, exec_list) {
 		ret = i915_gem_execbuffer_relocate_object(obj, eb);
 		if (ret)
-			return ret;
+			break;
 	}
+	pagefault_enable();
 
-	return 0;
+	return ret;
 }
 
 static int
diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c
index 8342259f3160..d03fc05b39c0 100644
--- a/drivers/gpu/drm/i915/intel_crt.c
+++ b/drivers/gpu/drm/i915/intel_crt.c
@@ -269,21 +269,6 @@ static bool intel_crt_detect_hotplug(struct drm_connector *connector)
 	return ret;
 }
 
-static bool intel_crt_ddc_probe(struct drm_i915_private *dev_priv, int ddc_bus)
-{
-	u8 buf;
-	struct i2c_msg msgs[] = {
-		{
-			.addr = 0xA0,
-			.flags = 0,
-			.len = 1,
-			.buf = &buf,
-		},
-	};
-	/* DDC monitor detect: Does it ACK a write to 0xA0? */
-	return i2c_transfer(&dev_priv->gmbus[ddc_bus].adapter, msgs, 1) == 1;
-}
-
 static bool intel_crt_detect_ddc(struct drm_connector *connector)
 {
 	struct intel_crt *crt = intel_attached_crt(connector);
@@ -293,11 +278,6 @@ static bool intel_crt_detect_ddc(struct drm_connector *connector)
 	if (crt->base.type != INTEL_OUTPUT_ANALOG)
 		return false;
 
-	if (intel_crt_ddc_probe(dev_priv, dev_priv->crt_ddc_pin)) {
-		DRM_DEBUG_KMS("CRT detected via DDC:0xa0\n");
-		return true;
-	}
-
 	if (intel_ddc_probe(&crt->base, dev_priv->crt_ddc_pin)) {
 		struct edid *edid;
 		bool is_digital = false;
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 3106c0dc8389..432fc04c6bff 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -1516,9 +1516,10 @@ static void intel_enable_pipe(struct drm_i915_private *dev_priv, enum pipe pipe,
 
 	reg = PIPECONF(pipe);
 	val = I915_READ(reg);
-	val |= PIPECONF_ENABLE;
-	I915_WRITE(reg, val);
-	POSTING_READ(reg);
+	if (val & PIPECONF_ENABLE)
+		return;
+
+	I915_WRITE(reg, val | PIPECONF_ENABLE);
 	intel_wait_for_vblank(dev_priv->dev, pipe);
 }
 
@@ -1552,9 +1553,10 @@ static void intel_disable_pipe(struct drm_i915_private *dev_priv,
 
 	reg = PIPECONF(pipe);
 	val = I915_READ(reg);
-	val &= ~PIPECONF_ENABLE;
-	I915_WRITE(reg, val);
-	POSTING_READ(reg);
+	if ((val & PIPECONF_ENABLE) == 0)
+		return;
+
+	I915_WRITE(reg, val & ~PIPECONF_ENABLE);
 	intel_wait_for_pipe_off(dev_priv->dev, pipe);
 }
 
@@ -1577,9 +1579,10 @@ static void intel_enable_plane(struct drm_i915_private *dev_priv,
 
 	reg = DSPCNTR(plane);
 	val = I915_READ(reg);
-	val |= DISPLAY_PLANE_ENABLE;
-	I915_WRITE(reg, val);
-	POSTING_READ(reg);
+	if (val & DISPLAY_PLANE_ENABLE)
+		return;
+
+	I915_WRITE(reg, val | DISPLAY_PLANE_ENABLE);
 	intel_wait_for_vblank(dev_priv->dev, pipe);
 }
 
@@ -1610,9 +1613,10 @@ static void intel_disable_plane(struct drm_i915_private *dev_priv,
 
 	reg = DSPCNTR(plane);
 	val = I915_READ(reg);
-	val &= ~DISPLAY_PLANE_ENABLE;
-	I915_WRITE(reg, val);
-	POSTING_READ(reg);
+	if ((val & DISPLAY_PLANE_ENABLE) == 0)
+		return;
+
+	I915_WRITE(reg, val & ~DISPLAY_PLANE_ENABLE);
 	intel_flush_display_plane(dev_priv, plane);
 	intel_wait_for_vblank(dev_priv->dev, pipe);
 }
@@ -1769,7 +1773,6 @@ static void g4x_enable_fbc(struct drm_crtc *crtc, unsigned long interval)
 			return;
 
 		I915_WRITE(DPFC_CONTROL, dpfc_ctl & ~DPFC_CTL_EN);
-		POSTING_READ(DPFC_CONTROL);
 		intel_wait_for_vblank(dev, intel_crtc->pipe);
 	}
 
@@ -1861,7 +1864,6 @@ static void ironlake_enable_fbc(struct drm_crtc *crtc, unsigned long interval)
 			return;
 
 		I915_WRITE(ILK_DPFC_CONTROL, dpfc_ctl & ~DPFC_CTL_EN);
-		POSTING_READ(ILK_DPFC_CONTROL);
 		intel_wait_for_vblank(dev, intel_crtc->pipe);
 	}
 
@@ -3883,10 +3885,7 @@ static bool g4x_compute_srwm(struct drm_device *dev,
 			      display, cursor);
 }
 
-static inline bool single_plane_enabled(unsigned int mask)
-{
-	return mask && (mask & -mask) == 0;
-}
+#define single_plane_enabled(mask) is_power_of_2(mask)
 
 static void g4x_update_wm(struct drm_device *dev)
 {
@@ -5777,7 +5776,6 @@ static void intel_increase_pllclock(struct drm_crtc *crtc)
 
 		dpll &= ~DISPLAY_RATE_SELECT_FPA1;
 		I915_WRITE(dpll_reg, dpll);
-		POSTING_READ(dpll_reg);
 		intel_wait_for_vblank(dev, pipe);
 
 		dpll = I915_READ(dpll_reg);
@@ -5821,7 +5819,6 @@ static void intel_decrease_pllclock(struct drm_crtc *crtc)
 
 		dpll |= DISPLAY_RATE_SELECT_FPA1;
 		I915_WRITE(dpll_reg, dpll);
-		dpll = I915_READ(dpll_reg);
 		intel_wait_for_vblank(dev, pipe);
 		dpll = I915_READ(dpll_reg);
 		if (!(dpll & DISPLAY_RATE_SELECT_FPA1))
@@ -6933,7 +6930,7 @@ void gen6_enable_rps(struct drm_i915_private *dev_priv)
 		DRM_ERROR("timeout waiting for pcode mailbox to finish\n");
 	if (pcu_mbox & (1<<31)) { /* OC supported */
 		max_freq = pcu_mbox & 0xff;
-		DRM_DEBUG_DRIVER("overclocking supported, adjusting frequency max to %dMHz\n", pcu_mbox * 100);
+		DRM_DEBUG_DRIVER("overclocking supported, adjusting frequency max to %dMHz\n", pcu_mbox * 50);
 	}
 
 	/* In units of 100MHz */
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index d29e33f815d7..cb8578b7e443 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -213,7 +213,7 @@ intel_dp_mode_valid(struct drm_connector *connector,
 			return MODE_PANEL;
 	}
 
-	/* only refuse the mode on non eDP since we have seen some wierd eDP panels
+	/* only refuse the mode on non eDP since we have seen some weird eDP panels
 	   which are outside spec tolerances but somehow work by magic */
 	if (!is_edp(intel_dp) &&
 	    (intel_dp_link_required(connector->dev, intel_dp, mode->clock)
@@ -1957,9 +1957,9 @@ intel_dp_init(struct drm_device *dev, int output_reg)
 					DP_NO_AUX_HANDSHAKE_LINK_TRAINING;
 		} else {
 			/* if this fails, presume the device is a ghost */
-			DRM_ERROR("failed to retrieve link info\n");
-			intel_dp_destroy(&intel_connector->base);
+			DRM_INFO("failed to retrieve link info, disabling eDP\n");
 			intel_dp_encoder_destroy(&intel_dp->base.base);
+			intel_dp_destroy(&intel_connector->base);
 			return;
 		}
 	}
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 5daa991cb287..f5b0d8306d83 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -39,7 +39,7 @@
 			ret__ = -ETIMEDOUT;				\
 			break;						\
 		}							\
-		if (W && !in_dbg_master()) msleep(W);			\
+		if (W && !(in_atomic() || in_dbg_master())) msleep(W);	\
 	}								\
 	ret__;								\
 })
diff --git a/drivers/gpu/drm/i915/intel_i2c.c b/drivers/gpu/drm/i915/intel_i2c.c
index 82d04c5899d2..d3b903bce7c5 100644
--- a/drivers/gpu/drm/i915/intel_i2c.c
+++ b/drivers/gpu/drm/i915/intel_i2c.c
@@ -259,7 +259,7 @@ gmbus_xfer(struct i2c_adapter *adapter,
 				if (wait_for(I915_READ(GMBUS2 + reg_offset) & (GMBUS_SATOER | GMBUS_HW_RDY), 50))
 					goto timeout;
 				if (I915_READ(GMBUS2 + reg_offset) & GMBUS_SATOER)
-					return 0;
+					goto clear_err;
 
 				val = I915_READ(GMBUS3 + reg_offset);
 				do {
@@ -287,7 +287,7 @@ gmbus_xfer(struct i2c_adapter *adapter,
 				if (wait_for(I915_READ(GMBUS2 + reg_offset) & (GMBUS_SATOER | GMBUS_HW_RDY), 50))
 					goto timeout;
 				if (I915_READ(GMBUS2 + reg_offset) & GMBUS_SATOER)
-					return 0;
+					goto clear_err;
 
 				val = loop = 0;
 				do {
@@ -302,14 +302,31 @@ gmbus_xfer(struct i2c_adapter *adapter,
 		if (i + 1 < num && wait_for(I915_READ(GMBUS2 + reg_offset) & (GMBUS_SATOER | GMBUS_HW_WAIT_PHASE), 50))
 			goto timeout;
 		if (I915_READ(GMBUS2 + reg_offset) & GMBUS_SATOER)
-			return 0;
+			goto clear_err;
 	}
 
-	return num;
+	goto done;
+
+clear_err:
+	/* Toggle the Software Clear Interrupt bit. This has the effect
+	 * of resetting the GMBUS controller and so clearing the
+	 * BUS_ERROR raised by the slave's NAK.
+	 */
+	I915_WRITE(GMBUS1 + reg_offset, GMBUS_SW_CLR_INT);
+	I915_WRITE(GMBUS1 + reg_offset, 0);
+
+done:
+	/* Mark the GMBUS interface as disabled. We will re-enable it at the
+	 * start of the next xfer, till then let it sleep.
+	 */
+	I915_WRITE(GMBUS0 + reg_offset, 0);
+	return i;
 
 timeout:
 	DRM_INFO("GMBUS timed out, falling back to bit banging on pin %d [%s]\n",
 		 bus->reg0 & 0xff, bus->adapter.name);
+	I915_WRITE(GMBUS0 + reg_offset, 0);
+
 	/* Hardware may not support GMBUS over these pins? Try GPIO bitbanging instead. */
 	bus->force_bit = intel_gpio_create(dev_priv, bus->reg0 & 0xff);
 	if (!bus->force_bit)
diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c
index 1a311ad01116..a562bd2648c7 100644
--- a/drivers/gpu/drm/i915/intel_lvds.c
+++ b/drivers/gpu/drm/i915/intel_lvds.c
@@ -473,19 +473,13 @@ static enum drm_connector_status
 intel_lvds_detect(struct drm_connector *connector, bool force)
 {
 	struct drm_device *dev = connector->dev;
-	enum drm_connector_status status = connector_status_connected;
+	enum drm_connector_status status;
 
 	status = intel_panel_detect(dev);
 	if (status != connector_status_unknown)
 		return status;
 
-	/* ACPI lid methods were generally unreliable in this generation, so
-	 * don't even bother.
-	 */
-	if (IS_GEN2(dev) || IS_GEN3(dev))
-		return connector_status_connected;
-
-	return status;
+	return connector_status_connected;
 }
 
 /**
@@ -835,25 +829,6 @@ static bool lvds_is_present_in_vbt(struct drm_device *dev,
 	return false;
 }
 
-static bool intel_lvds_ddc_probe(struct drm_device *dev, u8 pin)
-{
-	struct drm_i915_private *dev_priv = dev->dev_private;
-	u8 buf = 0;
-	struct i2c_msg msgs[] = {
-		{
-			.addr = 0xA0,
-			.flags = 0,
-			.len = 1,
-			.buf = &buf,
-		},
-	};
-	struct i2c_adapter *i2c = &dev_priv->gmbus[pin].adapter;
-	/* XXX this only appears to work when using GMBUS */
-	if (intel_gmbus_is_forced_bit(i2c))
-		return true;
-	return i2c_transfer(i2c, msgs, 1) == 1;
-}
-
 /**
  * intel_lvds_init - setup LVDS connectors on this device
  * @dev: drm device
@@ -894,11 +869,6 @@ bool intel_lvds_init(struct drm_device *dev)
 		}
 	}
 
-	if (!intel_lvds_ddc_probe(dev, pin)) {
-		DRM_DEBUG_KMS("LVDS did not respond to DDC probe\n");
-		return false;
-	}
-
 	intel_lvds = kzalloc(sizeof(struct intel_lvds), GFP_KERNEL);
 	if (!intel_lvds) {
 		return false;
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index 789c47801ba8..e9e6f71418a4 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -65,62 +65,60 @@ render_ring_flush(struct intel_ring_buffer *ring,
 	u32 cmd;
 	int ret;
 
-	if ((invalidate_domains | flush_domains) & I915_GEM_GPU_DOMAINS) {
+	/*
+	 * read/write caches:
+	 *
+	 * I915_GEM_DOMAIN_RENDER is always invalidated, but is
+	 * only flushed if MI_NO_WRITE_FLUSH is unset.  On 965, it is
+	 * also flushed at 2d versus 3d pipeline switches.
+	 *
+	 * read-only caches:
+	 *
+	 * I915_GEM_DOMAIN_SAMPLER is flushed on pre-965 if
+	 * MI_READ_FLUSH is set, and is always flushed on 965.
+	 *
+	 * I915_GEM_DOMAIN_COMMAND may not exist?
+	 *
+	 * I915_GEM_DOMAIN_INSTRUCTION, which exists on 965, is
+	 * invalidated when MI_EXE_FLUSH is set.
+	 *
+	 * I915_GEM_DOMAIN_VERTEX, which exists on 965, is
+	 * invalidated with every MI_FLUSH.
+	 *
+	 * TLBs:
+	 *
+	 * On 965, TLBs associated with I915_GEM_DOMAIN_COMMAND
+	 * and I915_GEM_DOMAIN_CPU in are invalidated at PTE write and
+	 * I915_GEM_DOMAIN_RENDER and I915_GEM_DOMAIN_SAMPLER
+	 * are flushed at any MI_FLUSH.
+	 */
+
+	cmd = MI_FLUSH | MI_NO_WRITE_FLUSH;
+	if ((invalidate_domains|flush_domains) &
+	    I915_GEM_DOMAIN_RENDER)
+		cmd &= ~MI_NO_WRITE_FLUSH;
+	if (INTEL_INFO(dev)->gen < 4) {
 		/*
-		 * read/write caches:
-		 *
-		 * I915_GEM_DOMAIN_RENDER is always invalidated, but is
-		 * only flushed if MI_NO_WRITE_FLUSH is unset.  On 965, it is
-		 * also flushed at 2d versus 3d pipeline switches.
-		 *
-		 * read-only caches:
-		 *
-		 * I915_GEM_DOMAIN_SAMPLER is flushed on pre-965 if
-		 * MI_READ_FLUSH is set, and is always flushed on 965.
-		 *
-		 * I915_GEM_DOMAIN_COMMAND may not exist?
-		 *
-		 * I915_GEM_DOMAIN_INSTRUCTION, which exists on 965, is
-		 * invalidated when MI_EXE_FLUSH is set.
-		 *
-		 * I915_GEM_DOMAIN_VERTEX, which exists on 965, is
-		 * invalidated with every MI_FLUSH.
-		 *
-		 * TLBs:
-		 *
-		 * On 965, TLBs associated with I915_GEM_DOMAIN_COMMAND
-		 * and I915_GEM_DOMAIN_CPU in are invalidated at PTE write and
-		 * I915_GEM_DOMAIN_RENDER and I915_GEM_DOMAIN_SAMPLER
-		 * are flushed at any MI_FLUSH.
+		 * On the 965, the sampler cache always gets flushed
+		 * and this bit is reserved.
 		 */
+		if (invalidate_domains & I915_GEM_DOMAIN_SAMPLER)
+			cmd |= MI_READ_FLUSH;
+	}
+	if (invalidate_domains & I915_GEM_DOMAIN_INSTRUCTION)
+		cmd |= MI_EXE_FLUSH;
 
-		cmd = MI_FLUSH | MI_NO_WRITE_FLUSH;
-		if ((invalidate_domains|flush_domains) &
-		    I915_GEM_DOMAIN_RENDER)
-			cmd &= ~MI_NO_WRITE_FLUSH;
-		if (INTEL_INFO(dev)->gen < 4) {
-			/*
-			 * On the 965, the sampler cache always gets flushed
-			 * and this bit is reserved.
-			 */
-			if (invalidate_domains & I915_GEM_DOMAIN_SAMPLER)
-				cmd |= MI_READ_FLUSH;
-		}
-		if (invalidate_domains & I915_GEM_DOMAIN_INSTRUCTION)
-			cmd |= MI_EXE_FLUSH;
-
-		if (invalidate_domains & I915_GEM_DOMAIN_COMMAND &&
-		    (IS_G4X(dev) || IS_GEN5(dev)))
-			cmd |= MI_INVALIDATE_ISP;
+	if (invalidate_domains & I915_GEM_DOMAIN_COMMAND &&
+	    (IS_G4X(dev) || IS_GEN5(dev)))
+		cmd |= MI_INVALIDATE_ISP;
 
-		ret = intel_ring_begin(ring, 2);
-		if (ret)
-			return ret;
+	ret = intel_ring_begin(ring, 2);
+	if (ret)
+		return ret;
 
-		intel_ring_emit(ring, cmd);
-		intel_ring_emit(ring, MI_NOOP);
-		intel_ring_advance(ring);
-	}
+	intel_ring_emit(ring, cmd);
+	intel_ring_emit(ring, MI_NOOP);
+	intel_ring_advance(ring);
 
 	return 0;
 }
@@ -568,9 +566,6 @@ bsd_ring_flush(struct intel_ring_buffer *ring,
 {
 	int ret;
 
-	if ((flush_domains & I915_GEM_DOMAIN_RENDER) == 0)
-		return 0;
-
 	ret = intel_ring_begin(ring, 2);
 	if (ret)
 		return ret;
@@ -1056,9 +1051,6 @@ static int gen6_ring_flush(struct intel_ring_buffer *ring,
 	uint32_t cmd;
 	int ret;
 
-	if (((invalidate | flush) & I915_GEM_GPU_DOMAINS) == 0)
-		return 0;
-
 	ret = intel_ring_begin(ring, 4);
 	if (ret)
 		return ret;
@@ -1230,9 +1222,6 @@ static int blt_ring_flush(struct intel_ring_buffer *ring,
 	uint32_t cmd;
 	int ret;
 
-	if (((invalidate | flush) & I915_GEM_DOMAIN_RENDER) == 0)
-		return 0;
-
 	ret = blt_ring_begin(ring, 4);
 	if (ret)
 		return ret;
diff --git a/drivers/gpu/drm/i915/intel_sdvo_regs.h b/drivers/gpu/drm/i915/intel_sdvo_regs.h
index a386b022e538..4f4e23bc2d16 100644
--- a/drivers/gpu/drm/i915/intel_sdvo_regs.h
+++ b/drivers/gpu/drm/i915/intel_sdvo_regs.h
@@ -230,7 +230,7 @@ struct intel_sdvo_set_target_input_args {
 } __attribute__((packed));
 
 /**
- * Takes a struct intel_sdvo_output_flags of which outputs are targetted by
+ * Takes a struct intel_sdvo_output_flags of which outputs are targeted by
  * future output commands.
  *
  * Affected commands inclue SET_OUTPUT_TIMINGS_PART[12],
diff --git a/drivers/gpu/drm/mga/mga_dma.c b/drivers/gpu/drm/mga/mga_dma.c
index 1e1eb1d7e971..5ccb65deb83c 100644
--- a/drivers/gpu/drm/mga/mga_dma.c
+++ b/drivers/gpu/drm/mga/mga_dma.c
@@ -426,7 +426,7 @@ int mga_driver_load(struct drm_device *dev, unsigned long flags)
  * Bootstrap the driver for AGP DMA.
  *
  * \todo
- * Investigate whether there is any benifit to storing the WARP microcode in
+ * Investigate whether there is any benefit to storing the WARP microcode in
  * AGP memory.  If not, the microcode may as well always be put in PCI
  * memory.
  *
diff --git a/drivers/gpu/drm/nouveau/nouveau_channel.c b/drivers/gpu/drm/nouveau/nouveau_channel.c
index 3837090d66af..4cea35c57d15 100644
--- a/drivers/gpu/drm/nouveau/nouveau_channel.c
+++ b/drivers/gpu/drm/nouveau/nouveau_channel.c
@@ -200,7 +200,7 @@ nouveau_channel_alloc(struct drm_device *dev, struct nouveau_channel **chan_ret,
 	/* disable the fifo caches */
 	pfifo->reassign(dev, false);
 
-	/* Construct inital RAMFC for new channel */
+	/* Construct initial RAMFC for new channel */
 	ret = pfifo->create_context(chan);
 	if (ret) {
 		nouveau_channel_put(&chan);
@@ -278,7 +278,7 @@ nouveau_channel_put_unlocked(struct nouveau_channel **pchan)
 		return;
 	}
 
-	/* noone wants the channel anymore */
+	/* no one wants the channel anymore */
 	NV_DEBUG(dev, "freeing channel %d\n", chan->id);
 	nouveau_debugfs_channel_fini(chan);
 
diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.h b/drivers/gpu/drm/nouveau/nouveau_drv.h
index fff180a99867..57e5302503db 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drv.h
+++ b/drivers/gpu/drm/nouveau/nouveau_drv.h
@@ -216,7 +216,7 @@ struct nouveau_channel {
 	/* mapping of the fifo itself */
 	struct drm_local_map *map;
 
-	/* mapping of the regs controling the fifo */
+	/* mapping of the regs controlling the fifo */
 	void __iomem *user;
 	uint32_t user_get;
 	uint32_t user_put;
diff --git a/drivers/gpu/drm/nouveau/nouveau_gem.c b/drivers/gpu/drm/nouveau/nouveau_gem.c
index e8b04f4aed7e..b52e46018245 100644
--- a/drivers/gpu/drm/nouveau/nouveau_gem.c
+++ b/drivers/gpu/drm/nouveau/nouveau_gem.c
@@ -97,7 +97,7 @@ nouveau_gem_new(struct drm_device *dev, struct nouveau_channel *chan,
 		return -ENOMEM;
 	}
 
-	nvbo->bo.persistant_swap_storage = nvbo->gem->filp;
+	nvbo->bo.persistent_swap_storage = nvbo->gem->filp;
 	nvbo->gem->driver_private = nvbo;
 	return 0;
 }
diff --git a/drivers/gpu/drm/nouveau/nouveau_state.c b/drivers/gpu/drm/nouveau/nouveau_state.c
index 4fcbd091a117..5bb2859001e2 100644
--- a/drivers/gpu/drm/nouveau/nouveau_state.c
+++ b/drivers/gpu/drm/nouveau/nouveau_state.c
@@ -963,7 +963,7 @@ int nouveau_load(struct drm_device *dev, unsigned long flags)
 	if (ret)
 		goto err_mmio;
 
-	/* Map PRAMIN BAR, or on older cards, the aperture withing BAR0 */
+	/* Map PRAMIN BAR, or on older cards, the aperture within BAR0 */
 	if (dev_priv->card_type >= NV_40) {
 		int ramin_bar = 2;
 		if (pci_resource_len(dev->pdev, ramin_bar) == 0)
diff --git a/drivers/gpu/drm/nouveau/nv04_crtc.c b/drivers/gpu/drm/nouveau/nv04_crtc.c
index a260fbbe3d9b..748b9d9c2949 100644
--- a/drivers/gpu/drm/nouveau/nv04_crtc.c
+++ b/drivers/gpu/drm/nouveau/nv04_crtc.c
@@ -164,7 +164,7 @@ nv_crtc_dpms(struct drm_crtc *crtc, int mode)
 	NV_DEBUG_KMS(dev, "Setting dpms mode %d on CRTC %d\n", mode,
 							nv_crtc->index);
 
-	if (nv_crtc->last_dpms == mode) /* Don't do unnecesary mode changes. */
+	if (nv_crtc->last_dpms == mode) /* Don't do unnecessary mode changes. */
 		return;
 
 	nv_crtc->last_dpms = mode;
@@ -677,7 +677,7 @@ static void nv_crtc_prepare(struct drm_crtc *crtc)
 
 	NVBlankScreen(dev, nv_crtc->index, true);
 
-	/* Some more preperation. */
+	/* Some more preparation. */
 	NVWriteCRTC(dev, nv_crtc->index, NV_PCRTC_CONFIG, NV_PCRTC_CONFIG_START_ADDRESS_NON_VGA);
 	if (dev_priv->card_type == NV_40) {
 		uint32_t reg900 = NVReadRAMDAC(dev, nv_crtc->index, NV_PRAMDAC_900);
diff --git a/drivers/gpu/drm/nouveau/nv40_graph.c b/drivers/gpu/drm/nouveau/nv40_graph.c
index 18d30c2c1aa6..fceb44c0ec74 100644
--- a/drivers/gpu/drm/nouveau/nv40_graph.c
+++ b/drivers/gpu/drm/nouveau/nv40_graph.c
@@ -181,7 +181,7 @@ nv40_graph_load_context(struct nouveau_channel *chan)
 		  NV40_PGRAPH_CTXCTL_CUR_LOADED);
 	/* 0x32E0 records the instance address of the active FIFO's PGRAPH
 	 * context.  If at any time this doesn't match 0x40032C, you will
-	 * recieve PGRAPH_INTR_CONTEXT_SWITCH
+	 * receive PGRAPH_INTR_CONTEXT_SWITCH
 	 */
 	nv_wr32(dev, NV40_PFIFO_GRCTX_INSTANCE, inst);
 	return 0;
diff --git a/drivers/gpu/drm/radeon/atombios.h b/drivers/gpu/drm/radeon/atombios.h
index 04b269d14a59..7fd88497b930 100644
--- a/drivers/gpu/drm/radeon/atombios.h
+++ b/drivers/gpu/drm/radeon/atombios.h
@@ -738,13 +738,13 @@ typedef struct _ATOM_DIG_ENCODER_CONFIG_V3
 {
 #if ATOM_BIG_ENDIAN
     UCHAR ucReserved1:1;
-    UCHAR ucDigSel:3;             // =0/1/2/3/4/5: DIG0/1/2/3/4/5 (In register spec also refered as DIGA/B/C/D/E/F)
+    UCHAR ucDigSel:3;             // =0/1/2/3/4/5: DIG0/1/2/3/4/5 (In register spec also referred as DIGA/B/C/D/E/F)
     UCHAR ucReserved:3;
     UCHAR ucDPLinkRate:1;         // =0: 1.62Ghz, =1: 2.7Ghz
 #else
     UCHAR ucDPLinkRate:1;         // =0: 1.62Ghz, =1: 2.7Ghz
     UCHAR ucReserved:3;
-    UCHAR ucDigSel:3;             // =0/1/2/3/4/5: DIG0/1/2/3/4/5 (In register spec also refered as DIGA/B/C/D/E/F)
+    UCHAR ucDigSel:3;             // =0/1/2/3/4/5: DIG0/1/2/3/4/5 (In register spec also referred as DIGA/B/C/D/E/F)
     UCHAR ucReserved1:1;
 #endif
 }ATOM_DIG_ENCODER_CONFIG_V3;
@@ -785,13 +785,13 @@ typedef struct _ATOM_DIG_ENCODER_CONFIG_V4
 {
 #if ATOM_BIG_ENDIAN
     UCHAR ucReserved1:1;
-    UCHAR ucDigSel:3;             // =0/1/2/3/4/5: DIG0/1/2/3/4/5 (In register spec also refered as DIGA/B/C/D/E/F)
+    UCHAR ucDigSel:3;             // =0/1/2/3/4/5: DIG0/1/2/3/4/5 (In register spec also referred as DIGA/B/C/D/E/F)
     UCHAR ucReserved:2;
     UCHAR ucDPLinkRate:2;         // =0: 1.62Ghz, =1: 2.7Ghz, 2=5.4Ghz    <= Changed comparing to previous version
 #else
     UCHAR ucDPLinkRate:2;         // =0: 1.62Ghz, =1: 2.7Ghz, 2=5.4Ghz    <= Changed comparing to previous version
     UCHAR ucReserved:2;
-    UCHAR ucDigSel:3;             // =0/1/2/3/4/5: DIG0/1/2/3/4/5 (In register spec also refered as DIGA/B/C/D/E/F)
+    UCHAR ucDigSel:3;             // =0/1/2/3/4/5: DIG0/1/2/3/4/5 (In register spec also referred as DIGA/B/C/D/E/F)
     UCHAR ucReserved1:1;
 #endif
 }ATOM_DIG_ENCODER_CONFIG_V4;
@@ -2126,7 +2126,7 @@ typedef struct _ATOM_MULTIMEDIA_CONFIG_INFO
 // Structures used in FirmwareInfoTable
 /****************************************************************************/	
 
-// usBIOSCapability Defintion:
+// usBIOSCapability Definition:
 // Bit 0 = 0: Bios image is not Posted, =1:Bios image is Posted; 
 // Bit 1 = 0: Dual CRTC is not supported, =1: Dual CRTC is supported; 
 // Bit 2 = 0: Extended Desktop is not supported, =1: Extended Desktop is supported; 
@@ -3341,7 +3341,7 @@ typedef struct _ATOM_SPREAD_SPECTRUM_INFO
 /****************************************************************************/	
 // Structure used in AnalogTV_InfoTable (Top level)
 /****************************************************************************/	
-//ucTVBootUpDefaultStd definiton:
+//ucTVBootUpDefaultStd definition:
 
 //ATOM_TV_NTSC                1
 //ATOM_TV_NTSCJ               2
@@ -3816,7 +3816,7 @@ typedef  struct _ATOM_EXTERNAL_DISPLAY_CONNECTION_INFO
   UCHAR                    Reserved [6];                          // for potential expansion
 }ATOM_EXTERNAL_DISPLAY_CONNECTION_INFO;
 
-//Related definitions, all records are differnt but they have a commond header
+//Related definitions, all records are different but they have a commond header
 typedef struct _ATOM_COMMON_RECORD_HEADER
 {
   UCHAR               ucRecordType;                      //An emun to indicate the record type
@@ -4365,14 +4365,14 @@ ucUMAChannelNumber:      	        System memory channel numbers.
 ulCSR_M3_ARB_CNTL_DEFAULT[10]:    Arrays with values for CSR M3 arbiter for default
 ulCSR_M3_ARB_CNTL_UVD[10]:        Arrays with values for CSR M3 arbiter for UVD playback.
 ulCSR_M3_ARB_CNTL_FS3D[10]:       Arrays with values for CSR M3 arbiter for Full Screen 3D applications.
-sAvail_SCLK[5]:                   Arrays to provide availabe list of SLCK and corresponding voltage, order from low to high  
+sAvail_SCLK[5]:                   Arrays to provide available list of SLCK and corresponding voltage, order from low to high  
 ulGMCRestoreResetTime:            GMC power restore and GMC reset time to calculate data reconnection latency. Unit in ns. 
 ulMinimumNClk:                    Minimum NCLK speed among all NB-Pstates to calcualte data reconnection latency. Unit in 10kHz. 
 ulIdleNClk:                       NCLK speed while memory runs in self-refresh state. Unit in 10kHz.
 ulDDR_DLL_PowerUpTime:            DDR PHY DLL power up time. Unit in ns.
 ulDDR_PLL_PowerUpTime:            DDR PHY PLL power up time. Unit in ns.
-usPCIEClkSSPercentage:            PCIE Clock Spred Spectrum Percentage in unit 0.01%; 100 mean 1%.
-usPCIEClkSSType:                  PCIE Clock Spred Spectrum Type. 0 for Down spread(default); 1 for Center spread.
+usPCIEClkSSPercentage:            PCIE Clock Spread Spectrum Percentage in unit 0.01%; 100 mean 1%.
+usPCIEClkSSType:                  PCIE Clock Spread Spectrum Type. 0 for Down spread(default); 1 for Center spread.
 usLvdsSSPercentage:               LVDS panel ( not include eDP ) Spread Spectrum Percentage in unit of 0.01%, =0, use VBIOS default setting. 
 usLvdsSSpreadRateIn10Hz:          LVDS panel ( not include eDP ) Spread Spectrum frequency in unit of 10Hz, =0, use VBIOS default setting. 
 usHDMISSPercentage:               HDMI Spread Spectrum Percentage in unit 0.01%; 100 mean 1%,  =0, use VBIOS default setting. 
@@ -4555,7 +4555,7 @@ typedef struct _ATOM_ASIC_INTERNAL_SS_INFO_V3
 #define ATOM_S0_SYSTEM_POWER_STATE_VALUE_LITEAC 3
 #define ATOM_S0_SYSTEM_POWER_STATE_VALUE_LIT2AC 4
 
-//Byte aligned defintion for BIOS usage
+//Byte aligned definition for BIOS usage
 #define ATOM_S0_CRT1_MONOb0             0x01
 #define ATOM_S0_CRT1_COLORb0            0x02
 #define ATOM_S0_CRT1_MASKb0             (ATOM_S0_CRT1_MONOb0+ATOM_S0_CRT1_COLORb0)
@@ -4621,7 +4621,7 @@ typedef struct _ATOM_ASIC_INTERNAL_SS_INFO_V3
 #define ATOM_S2_DISPLAY_ROTATION_ANGLE_MASK   0xC0000000L
 
 
-//Byte aligned defintion for BIOS usage
+//Byte aligned definition for BIOS usage
 #define ATOM_S2_TV1_STANDARD_MASKb0     0x0F
 #define ATOM_S2_CURRENT_BL_LEVEL_MASKb1 0xFF
 #define ATOM_S2_DEVICE_DPMS_STATEb2     0x01
@@ -4671,7 +4671,7 @@ typedef struct _ATOM_ASIC_INTERNAL_SS_INFO_V3
 #define ATOM_S3_ALLOW_FAST_PWR_SWITCH   0x40000000L
 #define ATOM_S3_RQST_GPU_USE_MIN_PWR    0x80000000L
 
-//Byte aligned defintion for BIOS usage
+//Byte aligned definition for BIOS usage
 #define ATOM_S3_CRT1_ACTIVEb0           0x01
 #define ATOM_S3_LCD1_ACTIVEb0           0x02
 #define ATOM_S3_TV1_ACTIVEb0            0x04
@@ -4707,7 +4707,7 @@ typedef struct _ATOM_ASIC_INTERNAL_SS_INFO_V3
 #define ATOM_S4_LCD1_REFRESH_MASK       0x0000FF00L
 #define ATOM_S4_LCD1_REFRESH_SHIFT      8
 
-//Byte aligned defintion for BIOS usage
+//Byte aligned definition for BIOS usage
 #define ATOM_S4_LCD1_PANEL_ID_MASKb0	  0x0FF
 #define ATOM_S4_LCD1_REFRESH_MASKb1		  ATOM_S4_LCD1_PANEL_ID_MASKb0
 #define ATOM_S4_VRAM_INFO_MASKb2        ATOM_S4_LCD1_PANEL_ID_MASKb0
@@ -4786,7 +4786,7 @@ typedef struct _ATOM_ASIC_INTERNAL_SS_INFO_V3
 #define ATOM_S6_VRI_BRIGHTNESS_CHANGE       0x40000000L
 #define ATOM_S6_CONFIG_DISPLAY_CHANGE_MASK  0x80000000L
 
-//Byte aligned defintion for BIOS usage
+//Byte aligned definition for BIOS usage
 #define ATOM_S6_DEVICE_CHANGEb0         0x01
 #define ATOM_S6_SCALER_CHANGEb0         0x02
 #define ATOM_S6_LID_CHANGEb0            0x04
@@ -5027,7 +5027,7 @@ typedef struct _ENABLE_GRAPH_SURFACE_PS_ALLOCATION
 
 typedef struct _MEMORY_CLEAN_UP_PARAMETERS
 {
-  USHORT  usMemoryStart;                //in 8Kb boundry, offset from memory base address
+  USHORT  usMemoryStart;                //in 8Kb boundary, offset from memory base address
   USHORT  usMemorySize;                 //8Kb blocks aligned
 }MEMORY_CLEAN_UP_PARAMETERS;
 #define MEMORY_CLEAN_UP_PS_ALLOCATION MEMORY_CLEAN_UP_PARAMETERS
@@ -6855,7 +6855,7 @@ typedef struct _ATOM_PPLIB_Clock_Voltage_Limit_Table
 /**************************************************************************/
 
 
-// Following definitions are for compatiblity issue in different SW components. 
+// Following definitions are for compatibility issue in different SW components. 
 #define ATOM_MASTER_DATA_TABLE_REVISION   0x01
 #define Object_Info												Object_Header			
 #define	AdjustARB_SEQ											MC_InitParameter
diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c
index 3cd3234ba0af..b41ec59c7100 100644
--- a/drivers/gpu/drm/radeon/atombios_crtc.c
+++ b/drivers/gpu/drm/radeon/atombios_crtc.c
@@ -957,7 +957,11 @@ static void atombios_crtc_set_pll(struct drm_crtc *crtc, struct drm_display_mode
 	/* adjust pixel clock as needed */
 	adjusted_clock = atombios_adjust_pll(crtc, mode, pll, ss_enabled, &ss);
 
-	if (ASIC_IS_AVIVO(rdev))
+	if (radeon_encoder->active_device & (ATOM_DEVICE_TV_SUPPORT))
+		/* TV seems to prefer the legacy algo on some boards */
+		radeon_compute_pll_legacy(pll, adjusted_clock, &pll_clock, &fb_div, &frac_fb_div,
+					  &ref_div, &post_div);
+	else if (ASIC_IS_AVIVO(rdev))
 		radeon_compute_pll_avivo(pll, adjusted_clock, &pll_clock, &fb_div, &frac_fb_div,
 					 &ref_div, &post_div);
 	else
@@ -1005,6 +1009,7 @@ static int dce4_crtc_do_set_base(struct drm_crtc *crtc,
 	uint64_t fb_location;
 	uint32_t fb_format, fb_pitch_pixels, tiling_flags;
 	u32 fb_swap = EVERGREEN_GRPH_ENDIAN_SWAP(EVERGREEN_GRPH_ENDIAN_NONE);
+	u32 tmp;
 	int r;
 
 	/* no fb bound */
@@ -1133,6 +1138,15 @@ static int dce4_crtc_do_set_base(struct drm_crtc *crtc,
 	WREG32(EVERGREEN_VIEWPORT_SIZE + radeon_crtc->crtc_offset,
 	       (crtc->mode.hdisplay << 16) | crtc->mode.vdisplay);
 
+	/* pageflip setup */
+	/* make sure flip is at vb rather than hb */
+	tmp = RREG32(EVERGREEN_GRPH_FLIP_CONTROL + radeon_crtc->crtc_offset);
+	tmp &= ~EVERGREEN_GRPH_SURFACE_UPDATE_H_RETRACE_EN;
+	WREG32(EVERGREEN_GRPH_FLIP_CONTROL + radeon_crtc->crtc_offset, tmp);
+
+	/* set pageflip to happen anywhere in vblank interval */
+	WREG32(EVERGREEN_MASTER_UPDATE_MODE + radeon_crtc->crtc_offset, 0);
+
 	if (!atomic && fb && fb != crtc->fb) {
 		radeon_fb = to_radeon_framebuffer(fb);
 		rbo = gem_to_radeon_bo(radeon_fb->obj);
@@ -1163,6 +1177,7 @@ static int avivo_crtc_do_set_base(struct drm_crtc *crtc,
 	uint64_t fb_location;
 	uint32_t fb_format, fb_pitch_pixels, tiling_flags;
 	u32 fb_swap = R600_D1GRPH_SWAP_ENDIAN_NONE;
+	u32 tmp;
 	int r;
 
 	/* no fb bound */
@@ -1290,6 +1305,15 @@ static int avivo_crtc_do_set_base(struct drm_crtc *crtc,
 	WREG32(AVIVO_D1MODE_VIEWPORT_SIZE + radeon_crtc->crtc_offset,
 	       (crtc->mode.hdisplay << 16) | crtc->mode.vdisplay);
 
+	/* pageflip setup */
+	/* make sure flip is at vb rather than hb */
+	tmp = RREG32(AVIVO_D1GRPH_FLIP_CONTROL + radeon_crtc->crtc_offset);
+	tmp &= ~AVIVO_D1GRPH_SURFACE_UPDATE_H_RETRACE_EN;
+	WREG32(AVIVO_D1GRPH_FLIP_CONTROL + radeon_crtc->crtc_offset, tmp);
+
+	/* set pageflip to happen anywhere in vblank interval */
+	WREG32(AVIVO_D1MODE_MASTER_UPDATE_MODE + radeon_crtc->crtc_offset, 0);
+
 	if (!atomic && fb && fb != crtc->fb) {
 		radeon_fb = to_radeon_framebuffer(fb);
 		rbo = gem_to_radeon_bo(radeon_fb->obj);
diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
index 941080a77940..0b0cc74c08c0 100644
--- a/drivers/gpu/drm/radeon/evergreen.c
+++ b/drivers/gpu/drm/radeon/evergreen.c
@@ -43,17 +43,6 @@ static void evergreen_pcie_gen2_enable(struct radeon_device *rdev);
 
 void evergreen_pre_page_flip(struct radeon_device *rdev, int crtc)
 {
-	struct radeon_crtc *radeon_crtc = rdev->mode_info.crtcs[crtc];
-	u32 tmp;
-
-	/* make sure flip is at vb rather than hb */
-	tmp = RREG32(EVERGREEN_GRPH_FLIP_CONTROL + radeon_crtc->crtc_offset);
-	tmp &= ~EVERGREEN_GRPH_SURFACE_UPDATE_H_RETRACE_EN;
-	WREG32(EVERGREEN_GRPH_FLIP_CONTROL + radeon_crtc->crtc_offset, tmp);
-
-	/* set pageflip to happen anywhere in vblank interval */
-	WREG32(EVERGREEN_MASTER_UPDATE_MODE + radeon_crtc->crtc_offset, 0);
-
 	/* enable the pflip int */
 	radeon_irq_kms_pflip_irq_get(rdev, crtc);
 }
diff --git a/drivers/gpu/drm/radeon/evergreen_cs.c b/drivers/gpu/drm/radeon/evergreen_cs.c
index edde90b37554..23d36417158d 100644
--- a/drivers/gpu/drm/radeon/evergreen_cs.c
+++ b/drivers/gpu/drm/radeon/evergreen_cs.c
@@ -442,7 +442,7 @@ static inline int evergreen_cs_check_reg(struct radeon_cs_parser *p, u32 reg, u3
 	}
 	ib = p->ib->ptr;
 	switch (reg) {
-	/* force following reg to 0 in an attemp to disable out buffer
+	/* force following reg to 0 in an attempt to disable out buffer
 	 * which will need us to better understand how it works to perform
 	 * security check on it (Jerome)
 	 */
diff --git a/drivers/gpu/drm/radeon/r300.c b/drivers/gpu/drm/radeon/r300.c
index 8713731fa014..55a7f190027e 100644
--- a/drivers/gpu/drm/radeon/r300.c
+++ b/drivers/gpu/drm/radeon/r300.c
@@ -437,7 +437,7 @@ int r300_asic_reset(struct radeon_device *rdev)
 	status = RREG32(R_000E40_RBBM_STATUS);
 	dev_info(rdev->dev, "(%s:%d) RBBM_STATUS=0x%08X\n", __func__, __LINE__, status);
 	/* resetting the CP seems to be problematic sometimes it end up
-	 * hard locking the computer, but it's necessary for successfull
+	 * hard locking the computer, but it's necessary for successful
 	 * reset more test & playing is needed on R3XX/R4XX to find a
 	 * reliable (if any solution)
 	 */
diff --git a/drivers/gpu/drm/radeon/r300_reg.h b/drivers/gpu/drm/radeon/r300_reg.h
index f0bce399c9f3..00c0d2ba22d3 100644
--- a/drivers/gpu/drm/radeon/r300_reg.h
+++ b/drivers/gpu/drm/radeon/r300_reg.h
@@ -608,7 +608,7 @@
  * My guess is that there are two bits for each zbias primitive
  * (FILL, LINE, POINT).
  *  One to enable depth test and one for depth write.
- * Yet this doesnt explain why depth writes work ...
+ * Yet this doesn't explain why depth writes work ...
  */
 #define R300_RE_OCCLUSION_CNTL		    0x42B4
 #	define R300_OCCLUSION_ON		(1<<1)
@@ -817,7 +817,7 @@
 #	define R300_TX_MIN_FILTER_LINEAR_MIP_NEAREST        (6  <<  11)
 #	define R300_TX_MIN_FILTER_LINEAR_MIP_LINEAR         (10 <<  11)
 
-/* NOTE: NEAREST doesnt seem to exist.
+/* NOTE: NEAREST doesn't seem to exist.
  * Im not seting MAG_FILTER_MASK and (3 << 11) on for all
  * anisotropy modes because that would void selected mag filter
  */
diff --git a/drivers/gpu/drm/radeon/r600_cs.c b/drivers/gpu/drm/radeon/r600_cs.c
index 3324620b2db6..fd18be9871ab 100644
--- a/drivers/gpu/drm/radeon/r600_cs.c
+++ b/drivers/gpu/drm/radeon/r600_cs.c
@@ -921,7 +921,7 @@ static inline int r600_cs_check_reg(struct radeon_cs_parser *p, u32 reg, u32 idx
 		return 0;
 	ib = p->ib->ptr;
 	switch (reg) {
-	/* force following reg to 0 in an attemp to disable out buffer
+	/* force following reg to 0 in an attempt to disable out buffer
 	 * which will need us to better understand how it works to perform
 	 * security check on it (Jerome)
 	 */
diff --git a/drivers/gpu/drm/radeon/r600_hdmi.c b/drivers/gpu/drm/radeon/r600_hdmi.c
index 50db6d62eec2..f5ac7e788d81 100644
--- a/drivers/gpu/drm/radeon/r600_hdmi.c
+++ b/drivers/gpu/drm/radeon/r600_hdmi.c
@@ -334,7 +334,7 @@ void r600_hdmi_setmode(struct drm_encoder *encoder, struct drm_display_mode *mod
 	r600_hdmi_videoinfoframe(encoder, RGB, 0, 0, 0, 0,
 		0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
 
-	/* it's unknown what these bits do excatly, but it's indeed quite usefull for debugging */
+	/* it's unknown what these bits do excatly, but it's indeed quite useful for debugging */
 	WREG32(offset+R600_HDMI_AUDIO_DEBUG_0, 0x00FFFFFF);
 	WREG32(offset+R600_HDMI_AUDIO_DEBUG_1, 0x007FFFFF);
 	WREG32(offset+R600_HDMI_AUDIO_DEBUG_2, 0x00000001);
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index cfe3af1a7935..93f536594c73 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -679,11 +679,11 @@ struct radeon_wb {
  * @sideport_bandwidth: sideport bandwidth the gpu has (MByte/s) (IGP)
  * @ht_bandwidth:       ht bandwidth the gpu has (MByte/s) (IGP)
  * @core_bandwidth:     core GPU bandwidth the gpu has (MByte/s) (IGP)
- * @sclk:          	GPU clock Mhz (core bandwith depends of this clock)
+ * @sclk:          	GPU clock Mhz (core bandwidth depends of this clock)
  * @needed_bandwidth:   current bandwidth needs
  *
  * It keeps track of various data needed to take powermanagement decision.
- * Bandwith need is used to determine minimun clock of the GPU and memory.
+ * Bandwidth need is used to determine minimun clock of the GPU and memory.
  * Equation between gpu/memory clock and available bandwidth is hw dependent
  * (type of memory, bus size, efficiency, ...)
  */
diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c
index 02d5c415f499..99768d9d91da 100644
--- a/drivers/gpu/drm/radeon/radeon_atombios.c
+++ b/drivers/gpu/drm/radeon/radeon_atombios.c
@@ -675,7 +675,8 @@ bool radeon_get_atom_connector_info_from_object_table(struct drm_device *dev)
 							ATOM_ENCODER_CAP_RECORD *cap_record;
 							u16 caps = 0;
 
-							while (record->ucRecordType > 0 &&
+							while (record->ucRecordSize > 0 &&
+							       record->ucRecordType > 0 &&
 							       record->ucRecordType <= ATOM_MAX_OBJECT_RECORD_NUMBER) {
 								switch (record->ucRecordType) {
 								case ATOM_ENCODER_CAP_RECORD_TYPE:
@@ -720,7 +721,8 @@ bool radeon_get_atom_connector_info_from_object_table(struct drm_device *dev)
 									break;
 							}
 
-							while (record->ucRecordType > 0 &&
+							while (record->ucRecordSize > 0 &&
+							       record->ucRecordType > 0 &&
 							       record->ucRecordType <= ATOM_MAX_OBJECT_RECORD_NUMBER) {
 								switch (record->ucRecordType) {
 								case ATOM_I2C_RECORD_TYPE:
@@ -782,10 +784,9 @@ bool radeon_get_atom_connector_info_from_object_table(struct drm_device *dev)
 						ATOM_HPD_INT_RECORD *hpd_record;
 						ATOM_I2C_ID_CONFIG_ACCESS *i2c_config;
 
-						while (record->ucRecordType > 0
-						       && record->
-						       ucRecordType <=
-						       ATOM_MAX_OBJECT_RECORD_NUMBER) {
+						while (record->ucRecordSize > 0 &&
+						       record->ucRecordType > 0 &&
+						       record->ucRecordType <= ATOM_MAX_OBJECT_RECORD_NUMBER) {
 							switch (record->ucRecordType) {
 							case ATOM_I2C_RECORD_TYPE:
 								i2c_record =
diff --git a/drivers/gpu/drm/radeon/radeon_combios.c b/drivers/gpu/drm/radeon/radeon_combios.c
index cf7c8d5b4ec2..8caf546c8e92 100644
--- a/drivers/gpu/drm/radeon/radeon_combios.c
+++ b/drivers/gpu/drm/radeon/radeon_combios.c
@@ -448,7 +448,7 @@ static uint16_t combios_get_table_offset(struct drm_device *dev,
 
 bool radeon_combios_check_hardcoded_edid(struct radeon_device *rdev)
 {
-	int edid_info;
+	int edid_info, size;
 	struct edid *edid;
 	unsigned char *raw;
 	edid_info = combios_get_table_offset(rdev->ddev, COMBIOS_HARDCODED_EDID_TABLE);
@@ -456,11 +456,12 @@ bool radeon_combios_check_hardcoded_edid(struct radeon_device *rdev)
 		return false;
 
 	raw = rdev->bios + edid_info;
-	edid = kmalloc(EDID_LENGTH * (raw[0x7e] + 1), GFP_KERNEL);
+	size = EDID_LENGTH * (raw[0x7e] + 1);
+	edid = kmalloc(size, GFP_KERNEL);
 	if (edid == NULL)
 		return false;
 
-	memcpy((unsigned char *)edid, raw, EDID_LENGTH * (raw[0x7e] + 1));
+	memcpy((unsigned char *)edid, raw, size);
 
 	if (!drm_edid_is_valid(edid)) {
 		kfree(edid);
@@ -468,6 +469,7 @@ bool radeon_combios_check_hardcoded_edid(struct radeon_device *rdev)
 	}
 
 	rdev->mode_info.bios_hardcoded_edid = edid;
+	rdev->mode_info.bios_hardcoded_edid_size = size;
 	return true;
 }
 
@@ -475,8 +477,17 @@ bool radeon_combios_check_hardcoded_edid(struct radeon_device *rdev)
 struct edid *
 radeon_bios_get_hardcoded_edid(struct radeon_device *rdev)
 {
-	if (rdev->mode_info.bios_hardcoded_edid)
-		return rdev->mode_info.bios_hardcoded_edid;
+	struct edid *edid;
+
+	if (rdev->mode_info.bios_hardcoded_edid) {
+		edid = kmalloc(rdev->mode_info.bios_hardcoded_edid_size, GFP_KERNEL);
+		if (edid) {
+			memcpy((unsigned char *)edid,
+			       (unsigned char *)rdev->mode_info.bios_hardcoded_edid,
+			       rdev->mode_info.bios_hardcoded_edid_size);
+			return edid;
+		}
+	}
 	return NULL;
 }
 
@@ -2068,6 +2079,19 @@ bool radeon_get_legacy_connector_info_from_table(struct drm_device *dev)
 					    DRM_MODE_CONNECTOR_DVII, &ddc_i2c,
 					    CONNECTOR_OBJECT_ID_SINGLE_LINK_DVI_I,
 					    &hpd);
+		/* TV - TV DAC */
+		ddc_i2c.valid = false;
+		hpd.hpd = RADEON_HPD_NONE;
+		radeon_add_legacy_encoder(dev,
+					  radeon_get_encoder_enum(dev,
+								ATOM_DEVICE_TV1_SUPPORT,
+								2),
+					  ATOM_DEVICE_TV1_SUPPORT);
+		radeon_add_legacy_connector(dev, 2, ATOM_DEVICE_TV1_SUPPORT,
+					    DRM_MODE_CONNECTOR_SVIDEO,
+					    &ddc_i2c,
+					    CONNECTOR_OBJECT_ID_SVIDEO,
+					    &hpd);
 		break;
 	default:
 		DRM_INFO("Connector table: %d (invalid)\n",
diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c
index 28c7961cd19b..2ef6d5135064 100644
--- a/drivers/gpu/drm/radeon/radeon_connectors.c
+++ b/drivers/gpu/drm/radeon/radeon_connectors.c
@@ -633,6 +633,8 @@ static int radeon_vga_mode_valid(struct drm_connector *connector,
 static enum drm_connector_status
 radeon_vga_detect(struct drm_connector *connector, bool force)
 {
+	struct drm_device *dev = connector->dev;
+	struct radeon_device *rdev = dev->dev_private;
 	struct radeon_connector *radeon_connector = to_radeon_connector(connector);
 	struct drm_encoder *encoder;
 	struct drm_encoder_helper_funcs *encoder_funcs;
@@ -683,6 +685,17 @@ radeon_vga_detect(struct drm_connector *connector, bool force)
 
 	if (ret == connector_status_connected)
 		ret = radeon_connector_analog_encoder_conflict_solve(connector, encoder, ret, true);
+
+	/* RN50 and some RV100 asics in servers often have a hardcoded EDID in the
+	 * vbios to deal with KVMs. If we have one and are not able to detect a monitor
+	 * by other means, assume the CRT is connected and use that EDID.
+	 */
+	if ((!rdev->is_atom_bios) &&
+	    (ret == connector_status_disconnected) &&
+	    rdev->mode_info.bios_hardcoded_edid_size) {
+		ret = connector_status_connected;
+	}
+
 	radeon_connector_update_scratch_regs(connector, ret);
 	return ret;
 }
@@ -794,6 +807,8 @@ static int radeon_dvi_get_modes(struct drm_connector *connector)
 static enum drm_connector_status
 radeon_dvi_detect(struct drm_connector *connector, bool force)
 {
+	struct drm_device *dev = connector->dev;
+	struct radeon_device *rdev = dev->dev_private;
 	struct radeon_connector *radeon_connector = to_radeon_connector(connector);
 	struct drm_encoder *encoder = NULL;
 	struct drm_encoder_helper_funcs *encoder_funcs;
@@ -833,8 +848,6 @@ radeon_dvi_detect(struct drm_connector *connector, bool force)
 			 * you don't really know what's connected to which port as both are digital.
 			 */
 			if (radeon_connector->shared_ddc && (ret == connector_status_connected)) {
-				struct drm_device *dev = connector->dev;
-				struct radeon_device *rdev = dev->dev_private;
 				struct drm_connector *list_connector;
 				struct radeon_connector *list_radeon_connector;
 				list_for_each_entry(list_connector, &dev->mode_config.connector_list, head) {
@@ -899,6 +912,19 @@ radeon_dvi_detect(struct drm_connector *connector, bool force)
 		ret = radeon_connector_analog_encoder_conflict_solve(connector, encoder, ret, true);
 	}
 
+	/* RN50 and some RV100 asics in servers often have a hardcoded EDID in the
+	 * vbios to deal with KVMs. If we have one and are not able to detect a monitor
+	 * by other means, assume the DFP is connected and use that EDID.  In most
+	 * cases the DVI port is actually a virtual KVM port connected to the service
+	 * processor.
+	 */
+	if ((!rdev->is_atom_bios) &&
+	    (ret == connector_status_disconnected) &&
+	    rdev->mode_info.bios_hardcoded_edid_size) {
+		radeon_connector->use_digital = true;
+		ret = connector_status_connected;
+	}
+
 out:
 	/* updated in get modes as well since we need to know if it's analog or digital */
 	radeon_connector_update_scratch_regs(connector, ret);
diff --git a/drivers/gpu/drm/radeon/radeon_cp.c b/drivers/gpu/drm/radeon/radeon_cp.c
index 3d599e33b9cc..75867792a4e2 100644
--- a/drivers/gpu/drm/radeon/radeon_cp.c
+++ b/drivers/gpu/drm/radeon/radeon_cp.c
@@ -244,7 +244,7 @@ void radeon_write_agp_base(drm_radeon_private_t *dev_priv, u64 agp_base)
 	u32 agp_base_lo = agp_base & 0xffffffff;
 	u32 r6xx_agp_base = (agp_base >> 22) & 0x3ffff;
 
-	/* R6xx/R7xx must be aligned to a 4MB boundry */
+	/* R6xx/R7xx must be aligned to a 4MB boundary */
 	if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_RV770)
 		RADEON_WRITE(R700_MC_VM_AGP_BASE, r6xx_agp_base);
 	else if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600)
diff --git a/drivers/gpu/drm/radeon/radeon_cursor.c b/drivers/gpu/drm/radeon/radeon_cursor.c
index 017ac54920fb..bdf2fa1189ae 100644
--- a/drivers/gpu/drm/radeon/radeon_cursor.c
+++ b/drivers/gpu/drm/radeon/radeon_cursor.c
@@ -226,7 +226,7 @@ int radeon_crtc_cursor_move(struct drm_crtc *crtc,
 		y += crtc->y;
 		DRM_DEBUG("x %d y %d c->x %d c->y %d\n", x, y, crtc->x, crtc->y);
 
-		/* avivo cursor image can't end on 128 pixel boundry or
+		/* avivo cursor image can't end on 128 pixel boundary or
 		 * go past the end of the frame if both crtcs are enabled
 		 */
 		list_for_each_entry(crtc_p, &crtc->dev->mode_config.crtc_list, head) {
diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
index f0209be7a34b..890217e678d3 100644
--- a/drivers/gpu/drm/radeon/radeon_device.c
+++ b/drivers/gpu/drm/radeon/radeon_device.c
@@ -262,7 +262,7 @@ int radeon_wb_init(struct radeon_device *rdev)
  * Note: GTT start, end, size should be initialized before calling this
  * function on AGP platform.
  *
- * Note: We don't explictly enforce VRAM start to be aligned on VRAM size,
+ * Note: We don't explicitly enforce VRAM start to be aligned on VRAM size,
  * this shouldn't be a problem as we are using the PCI aperture as a reference.
  * Otherwise this would be needed for rv280, all r3xx, and all r4xx, but
  * not IGP.
diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c
index 4be58793dc17..bdbab5c43bdc 100644
--- a/drivers/gpu/drm/radeon/radeon_display.c
+++ b/drivers/gpu/drm/radeon/radeon_display.c
@@ -1492,7 +1492,7 @@ bool radeon_crtc_scaling_mode_fixup(struct drm_crtc *crtc,
  *
  * \return Flags, or'ed together as follows:
  *
- * DRM_SCANOUTPOS_VALID = Query successfull.
+ * DRM_SCANOUTPOS_VALID = Query successful.
  * DRM_SCANOUTPOS_INVBL = Inside vblank.
  * DRM_SCANOUTPOS_ACCURATE = Returned position is accurate. A lack of
  * this flag means that returned position may be offset by a constant but
diff --git a/drivers/gpu/drm/radeon/radeon_drv.h b/drivers/gpu/drm/radeon/radeon_drv.h
index 5cba46b9779a..a1b59ca96d01 100644
--- a/drivers/gpu/drm/radeon/radeon_drv.h
+++ b/drivers/gpu/drm/radeon/radeon_drv.h
@@ -271,7 +271,7 @@ typedef struct drm_radeon_private {
 
 	int have_z_offset;
 
-	/* starting from here on, data is preserved accross an open */
+	/* starting from here on, data is preserved across an open */
 	uint32_t flags;		/* see radeon_chip_flags */
 	resource_size_t fb_aper_offset;
 
diff --git a/drivers/gpu/drm/radeon/radeon_mode.h b/drivers/gpu/drm/radeon/radeon_mode.h
index e4582814bb78..9c57538231d5 100644
--- a/drivers/gpu/drm/radeon/radeon_mode.h
+++ b/drivers/gpu/drm/radeon/radeon_mode.h
@@ -239,6 +239,7 @@ struct radeon_mode_info {
 	struct drm_property *underscan_vborder_property;
 	/* hardcoded DFP edid from BIOS */
 	struct edid *bios_hardcoded_edid;
+	int bios_hardcoded_edid_size;
 
 	/* pointer to fbdev info structure */
 	struct radeon_fbdev *rfbdev;
diff --git a/drivers/gpu/drm/radeon/radeon_object.h b/drivers/gpu/drm/radeon/radeon_object.h
index 7f8e778dba46..ede6c13628f2 100644
--- a/drivers/gpu/drm/radeon/radeon_object.h
+++ b/drivers/gpu/drm/radeon/radeon_object.h
@@ -87,7 +87,7 @@ static inline void radeon_bo_unreserve(struct radeon_bo *bo)
  * Returns current GPU offset of the object.
  *
  * Note: object should either be pinned or reserved when calling this
- * function, it might be usefull to add check for this for debugging.
+ * function, it might be useful to add check for this for debugging.
  */
 static inline u64 radeon_bo_gpu_offset(struct radeon_bo *bo)
 {
diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c
index 2aed03bde4b2..08de669e025a 100644
--- a/drivers/gpu/drm/radeon/radeon_pm.c
+++ b/drivers/gpu/drm/radeon/radeon_pm.c
@@ -365,12 +365,14 @@ static ssize_t radeon_set_pm_profile(struct device *dev,
 		else if (strncmp("high", buf, strlen("high")) == 0)
 			rdev->pm.profile = PM_PROFILE_HIGH;
 		else {
-			DRM_ERROR("invalid power profile!\n");
+			count = -EINVAL;
 			goto fail;
 		}
 		radeon_pm_update_profile(rdev);
 		radeon_pm_set_clocks(rdev);
-	}
+	} else
+		count = -EINVAL;
+
 fail:
 	mutex_unlock(&rdev->pm.mutex);
 
@@ -413,7 +415,7 @@ static ssize_t radeon_set_pm_method(struct device *dev,
 		mutex_unlock(&rdev->pm.mutex);
 		cancel_delayed_work_sync(&rdev->pm.dynpm_idle_work);
 	} else {
-		DRM_ERROR("invalid power method!\n");
+		count = -EINVAL;
 		goto fail;
 	}
 	radeon_pm_compute_clocks(rdev);
diff --git a/drivers/gpu/drm/radeon/radeon_state.c b/drivers/gpu/drm/radeon/radeon_state.c
index 4ae5a3d1074e..92e7ea73b7c5 100644
--- a/drivers/gpu/drm/radeon/radeon_state.c
+++ b/drivers/gpu/drm/radeon/radeon_state.c
@@ -980,7 +980,7 @@ static void radeon_cp_dispatch_clear(struct drm_device * dev,
 	}
 
 	/* hyper z clear */
-	/* no docs available, based on reverse engeneering by Stephane Marchesin */
+	/* no docs available, based on reverse engineering by Stephane Marchesin */
 	if ((flags & (RADEON_DEPTH | RADEON_STENCIL))
 	    && (flags & RADEON_CLEAR_FASTZ)) {
 
diff --git a/drivers/gpu/drm/radeon/rs600.c b/drivers/gpu/drm/radeon/rs600.c
index 19763f5df5e1..876cebc4b8ba 100644
--- a/drivers/gpu/drm/radeon/rs600.c
+++ b/drivers/gpu/drm/radeon/rs600.c
@@ -48,17 +48,6 @@ int rs600_mc_wait_for_idle(struct radeon_device *rdev);
 
 void rs600_pre_page_flip(struct radeon_device *rdev, int crtc)
 {
-	struct radeon_crtc *radeon_crtc = rdev->mode_info.crtcs[crtc];
-	u32 tmp;
-
-	/* make sure flip is at vb rather than hb */
-	tmp = RREG32(AVIVO_D1GRPH_FLIP_CONTROL + radeon_crtc->crtc_offset);
-	tmp &= ~AVIVO_D1GRPH_SURFACE_UPDATE_H_RETRACE_EN;
-	WREG32(AVIVO_D1GRPH_FLIP_CONTROL + radeon_crtc->crtc_offset, tmp);
-
-	/* set pageflip to happen anywhere in vblank interval */
-	WREG32(AVIVO_D1MODE_MASTER_UPDATE_MODE + radeon_crtc->crtc_offset, 0);
-
 	/* enable the pflip int */
 	radeon_irq_kms_pflip_irq_get(rdev, crtc);
 }
diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index 0b6a55ac2f87..2e618b5ac465 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -1168,7 +1168,7 @@ int ttm_bo_init(struct ttm_bo_device *bdev,
 		uint32_t page_alignment,
 		unsigned long buffer_start,
 		bool interruptible,
-		struct file *persistant_swap_storage,
+		struct file *persistent_swap_storage,
 		size_t acc_size,
 		void (*destroy) (struct ttm_buffer_object *))
 {
@@ -1211,7 +1211,7 @@ int ttm_bo_init(struct ttm_bo_device *bdev,
 	bo->priv_flags = 0;
 	bo->mem.placement = (TTM_PL_FLAG_SYSTEM | TTM_PL_FLAG_CACHED);
 	bo->seq_valid = false;
-	bo->persistant_swap_storage = persistant_swap_storage;
+	bo->persistent_swap_storage = persistent_swap_storage;
 	bo->acc_size = acc_size;
 	atomic_inc(&bo->glob->bo_count);
 
@@ -1260,7 +1260,7 @@ int ttm_bo_create(struct ttm_bo_device *bdev,
 			uint32_t page_alignment,
 			unsigned long buffer_start,
 			bool interruptible,
-			struct file *persistant_swap_storage,
+			struct file *persistent_swap_storage,
 			struct ttm_buffer_object **p_bo)
 {
 	struct ttm_buffer_object *bo;
@@ -1282,7 +1282,7 @@ int ttm_bo_create(struct ttm_bo_device *bdev,
 
 	ret = ttm_bo_init(bdev, bo, size, type, placement, page_alignment,
 				buffer_start, interruptible,
-				persistant_swap_storage, acc_size, NULL);
+				persistent_swap_storage, acc_size, NULL);
 	if (likely(ret == 0))
 		*p_bo = bo;
 
@@ -1863,7 +1863,7 @@ static int ttm_bo_swapout(struct ttm_mem_shrink *shrink)
 	if (bo->bdev->driver->swap_notify)
 		bo->bdev->driver->swap_notify(bo);
 
-	ret = ttm_tt_swapout(bo->ttm, bo->persistant_swap_storage);
+	ret = ttm_tt_swapout(bo->ttm, bo->persistent_swap_storage);
 out:
 
 	/**
diff --git a/drivers/gpu/drm/ttm/ttm_tt.c b/drivers/gpu/drm/ttm/ttm_tt.c
index 86d5b1745a45..90e23e0bfadb 100644
--- a/drivers/gpu/drm/ttm/ttm_tt.c
+++ b/drivers/gpu/drm/ttm/ttm_tt.c
@@ -332,7 +332,7 @@ void ttm_tt_destroy(struct ttm_tt *ttm)
 		ttm_tt_free_page_directory(ttm);
 	}
 
-	if (!(ttm->page_flags & TTM_PAGE_FLAG_PERSISTANT_SWAP) &&
+	if (!(ttm->page_flags & TTM_PAGE_FLAG_PERSISTENT_SWAP) &&
 	    ttm->swap_storage)
 		fput(ttm->swap_storage);
 
@@ -503,7 +503,7 @@ static int ttm_tt_swapin(struct ttm_tt *ttm)
 		page_cache_release(from_page);
 	}
 
-	if (!(ttm->page_flags & TTM_PAGE_FLAG_PERSISTANT_SWAP))
+	if (!(ttm->page_flags & TTM_PAGE_FLAG_PERSISTENT_SWAP))
 		fput(swap_storage);
 	ttm->swap_storage = NULL;
 	ttm->page_flags &= ~TTM_PAGE_FLAG_SWAPPED;
@@ -514,7 +514,7 @@ out_err:
 	return ret;
 }
 
-int ttm_tt_swapout(struct ttm_tt *ttm, struct file *persistant_swap_storage)
+int ttm_tt_swapout(struct ttm_tt *ttm, struct file *persistent_swap_storage)
 {
 	struct address_space *swap_space;
 	struct file *swap_storage;
@@ -540,7 +540,7 @@ int ttm_tt_swapout(struct ttm_tt *ttm, struct file *persistant_swap_storage)
 		return 0;
 	}
 
-	if (!persistant_swap_storage) {
+	if (!persistent_swap_storage) {
 		swap_storage = shmem_file_setup("ttm swap",
 						ttm->num_pages << PAGE_SHIFT,
 						0);
@@ -549,7 +549,7 @@ int ttm_tt_swapout(struct ttm_tt *ttm, struct file *persistant_swap_storage)
 			return PTR_ERR(swap_storage);
 		}
 	} else
-		swap_storage = persistant_swap_storage;
+		swap_storage = persistent_swap_storage;
 
 	swap_space = swap_storage->f_path.dentry->d_inode->i_mapping;
 
@@ -577,12 +577,12 @@ int ttm_tt_swapout(struct ttm_tt *ttm, struct file *persistant_swap_storage)
 	ttm_tt_free_alloced_pages(ttm);
 	ttm->swap_storage = swap_storage;
 	ttm->page_flags |= TTM_PAGE_FLAG_SWAPPED;
-	if (persistant_swap_storage)
-		ttm->page_flags |= TTM_PAGE_FLAG_PERSISTANT_SWAP;
+	if (persistent_swap_storage)
+		ttm->page_flags |= TTM_PAGE_FLAG_PERSISTENT_SWAP;
 
 	return 0;
 out_err:
-	if (!persistant_swap_storage)
+	if (!persistent_swap_storage)
 		fput(swap_storage);
 
 	return ret;
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
index cceeb42789b6..dfe32e62bd90 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
@@ -245,7 +245,7 @@ void vmw_kms_cursor_snoop(struct vmw_surface *srf,
 		/* TODO handle none page aligned offsets */
 		/* TODO handle partial uploads and pitch != 256 */
 		/* TODO handle more then one copy (size != 64) */
-		DRM_ERROR("lazy programer, cant handle wierd stuff\n");
+		DRM_ERROR("lazy programmer, can't handle weird stuff\n");
 		return;
 	}
 
diff --git a/drivers/gpu/vga/vgaarb.c b/drivers/gpu/vga/vgaarb.c
index ace2b1623b21..be8d4cb5861c 100644
--- a/drivers/gpu/vga/vgaarb.c
+++ b/drivers/gpu/vga/vgaarb.c
@@ -151,7 +151,7 @@ static inline void vga_irq_set_state(struct vga_device *vgadev, bool state)
 static void vga_check_first_use(void)
 {
 	/* we should inform all GPUs in the system that
-	 * VGA arb has occured and to try and disable resources
+	 * VGA arb has occurred and to try and disable resources
 	 * if they can */
 	if (!vga_arbiter_used) {
 		vga_arbiter_used = true;
@@ -774,7 +774,7 @@ static ssize_t vga_arb_read(struct file *file, char __user * buf,
 	 */
 	spin_lock_irqsave(&vga_lock, flags);
 
-	/* If we are targetting the default, use it */
+	/* If we are targeting the default, use it */
 	pdev = priv->target;
 	if (pdev == NULL || pdev == PCI_INVALID_CARD) {
 		spin_unlock_irqrestore(&vga_lock, flags);
diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
index b7ec4057841d..9de9e97149ec 100644
--- a/drivers/hid/Kconfig
+++ b/drivers/hid/Kconfig
@@ -185,7 +185,7 @@ config HID_EZKEY
 	Support for Ezkey BTC 8193 keyboard.
 
 config HID_KEYTOUCH
-	tristate "Keyoutch HID devices"
+	tristate "Keytouch HID devices"
 	depends on USB_HID
 	---help---
 	Support for Keytouch HID devices not fully compliant with
@@ -340,10 +340,17 @@ config HID_NTRIG
 	Support for N-Trig touch screen.
 
 config HID_ORTEK
-	tristate "Ortek PKB-1700/WKB-2000 wireless keyboard and mouse trackpad"
+	tristate "Ortek PKB-1700/WKB-2000/Skycable wireless keyboard and mouse trackpad"
 	depends on USB_HID
 	---help---
-	Support for Ortek PKB-1700/WKB-2000 wireless keyboard + mouse trackpad.
+	There are certain devices which have LogicalMaximum wrong in the keyboard
+	usage page of their report descriptor. The most prevailing ones so far
+	are manufactured by Ortek, thus the name of the driver. Currently
+	supported devices by this driver are
+
+	   - Ortek PKB-1700
+	   - Ortek WKB-2000
+	   - Skycable wireless presenter
 
 config HID_PANTHERLORD
 	tristate "Pantherlord/GreenAsia game controller"
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index e9687768a335..408c4bea4d8d 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -306,7 +306,7 @@ static int hid_parser_global(struct hid_parser *parser, struct hid_item *item)
 	case HID_GLOBAL_ITEM_TAG_PUSH:
 
 		if (parser->global_stack_ptr == HID_GLOBAL_STACK_SIZE) {
-			dbg_hid("global enviroment stack overflow\n");
+			dbg_hid("global environment stack overflow\n");
 			return -1;
 		}
 
@@ -317,7 +317,7 @@ static int hid_parser_global(struct hid_parser *parser, struct hid_item *item)
 	case HID_GLOBAL_ITEM_TAG_POP:
 
 		if (!parser->global_stack_ptr) {
-			dbg_hid("global enviroment stack underflow\n");
+			dbg_hid("global environment stack underflow\n");
 			return -1;
 		}
 
@@ -1449,8 +1449,10 @@ static const struct hid_device_id hid_have_special_driver[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPLUS) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KOVAPLUS) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRED) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRELESS) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_IR_REMOTE) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_WIRELESS_KBD_MOUSE) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_SKYCABLE, USB_DEVICE_ID_SKYCABLE_WIRELESS_PRESENTER) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE) },
diff --git a/drivers/hid/hid-debug.c b/drivers/hid/hid-debug.c
index 555382fc7417..bae48745bb42 100644
--- a/drivers/hid/hid-debug.c
+++ b/drivers/hid/hid-debug.c
@@ -341,7 +341,7 @@ static const struct hid_usage_entry hid_usage_table[] = {
     { 0x85, 0x83, "DesignCapacity" },
     { 0x85, 0x85, "ManufacturerDate" },
     { 0x85, 0x89, "iDeviceChemistry" },
-    { 0x85, 0x8b, "Rechargable" },
+    { 0x85, 0x8b, "Rechargeable" },
     { 0x85, 0x8f, "iOEMInformation" },
     { 0x85, 0x8d, "CapacityGranularity1" },
     { 0x85, 0xd0, "ACPresent" },
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 65ac53d7aecc..00a94b535d28 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -150,6 +150,7 @@
 #define USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6 0x0f01
 
 #define USB_VENDOR_ID_CH		0x068e
+#define USB_DEVICE_ID_CH_PRO_THROTTLE	0x00f1
 #define USB_DEVICE_ID_CH_PRO_PEDALS	0x00f2
 #define USB_DEVICE_ID_CH_COMBATSTICK	0x00f4
 #define USB_DEVICE_ID_CH_FLIGHT_SIM_ECLIPSE_YOKE       0x0051
@@ -524,6 +525,9 @@
 #define USB_DEVICE_ID_SAMSUNG_IR_REMOTE	0x0001
 #define USB_DEVICE_ID_SAMSUNG_WIRELESS_KBD_MOUSE	0x0600
 
+#define USB_VENDOR_ID_SKYCABLE			0x1223
+#define	USB_DEVICE_ID_SKYCABLE_WIRELESS_PRESENTER	0x3F07
+
 #define USB_VENDOR_ID_SONY			0x054c
 #define USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE	0x024b
 #define USB_DEVICE_ID_SONY_PS3_CONTROLLER	0x0268
diff --git a/drivers/hid/hid-lgff.c b/drivers/hid/hid-lgff.c
index 90d0ef2c92be..f099079ca6b9 100644
--- a/drivers/hid/hid-lgff.c
+++ b/drivers/hid/hid-lgff.c
@@ -73,6 +73,8 @@ static const struct dev_type devices[] = {
 	{ 0x046d, 0xc293, ff_joystick },
 	{ 0x046d, 0xc294, ff_wheel },
 	{ 0x046d, 0xc295, ff_joystick },
+	{ 0x046d, 0xc298, ff_wheel },
+	{ 0x046d, 0xc299, ff_wheel },
 	{ 0x046d, 0xca03, ff_wheel },
 };
 
diff --git a/drivers/hid/hid-magicmouse.c b/drivers/hid/hid-magicmouse.c
index 318cc40df92d..0ec91c18a421 100644
--- a/drivers/hid/hid-magicmouse.c
+++ b/drivers/hid/hid-magicmouse.c
@@ -76,7 +76,7 @@ MODULE_PARM_DESC(report_undeciphered, "Report undeciphered multi-touch state fie
  * This is true when single_touch_id is equal to NO_TOUCHES. If multiple touches
  * are down and the touch providing for single touch emulation is lifted,
  * single_touch_id is equal to SINGLE_TOUCH_UP. While single touch emulation is
- * occuring, single_touch_id corresponds with the tracking id of the touch used.
+ * occurring, single_touch_id corresponds with the tracking id of the touch used.
  */
 #define NO_TOUCHES -1
 #define SINGLE_TOUCH_UP -2
@@ -418,6 +418,8 @@ static void magicmouse_setup_input(struct input_dev *input, struct hid_device *h
 			input_set_abs_params(input, ABS_MT_POSITION_Y, -2456,
 				2565, 4, 0);
 		}
+
+		input_set_events_per_packet(input, 60);
 	}
 
 	if (report_undeciphered) {
diff --git a/drivers/hid/hid-ortek.c b/drivers/hid/hid-ortek.c
index f9b7dd4f607f..0ffa1d2d64f0 100644
--- a/drivers/hid/hid-ortek.c
+++ b/drivers/hid/hid-ortek.c
@@ -1,8 +1,14 @@
 /*
- *  HID driver for Ortek PKB-1700/WKB-2000 (wireless keyboard + mouse trackpad).
- *  Fixes LogicalMaximum error in HID report description.
+ *  HID driver for various devices which are apparently based on the same chipset
+ *  from certain vendor which produces chips that contain wrong LogicalMaximum
+ *  value in their HID report descriptor. Currently supported devices are:
+ *
+ *    Ortek PKB-1700
+ *    Ortek WKB-2000
+ *    Skycable wireless presenter
  *
  *  Copyright (c) 2010 Johnathon Harris <jmharris@gmail.com>
+ *  Copyright (c) 2011 Jiri Kosina
  */
 
 /*
@@ -22,8 +28,11 @@ static __u8 *ortek_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 		unsigned int *rsize)
 {
 	if (*rsize >= 56 && rdesc[54] == 0x25 && rdesc[55] == 0x01) {
-		hid_info(hdev, "Fixing up Ortek WKB-2000 report descriptor\n");
+		hid_info(hdev, "Fixing up logical minimum in report descriptor (Ortek)\n");
 		rdesc[55] = 0x92;
+	} else if (*rsize >= 54 && rdesc[52] == 0x25 && rdesc[53] == 0x01) {
+		hid_info(hdev, "Fixing up logical minimum in report descriptor (Skycable)\n");
+		rdesc[53] = 0x65;
 	}
 	return rdesc;
 }
@@ -31,6 +40,7 @@ static __u8 *ortek_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 static const struct hid_device_id ortek_devices[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_PKB1700) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_WKB2000) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_SKYCABLE, USB_DEVICE_ID_SKYCABLE_WIRELESS_PRESENTER) },
 	{ }
 };
 MODULE_DEVICE_TABLE(hid, ortek_devices);
diff --git a/drivers/hid/hid-picolcd.c b/drivers/hid/hid-picolcd.c
index 657da5a3d5c6..b2f56a13bcf5 100644
--- a/drivers/hid/hid-picolcd.c
+++ b/drivers/hid/hid-picolcd.c
@@ -1806,13 +1806,13 @@ static ssize_t picolcd_debug_flash_write(struct file *f, const char __user *u,
 /*
  * Notes:
  * - concurrent writing is prevented by mutex and all writes must be
- *   n*64 bytes and 64-byte aligned, each write being preceeded by an
+ *   n*64 bytes and 64-byte aligned, each write being preceded by an
  *   ERASE which erases a 64byte block.
  *   If less than requested was written or an error is returned for an
  *   otherwise correct write request the next 64-byte block which should
  *   have been written is in undefined state (mostly: original, erased,
  *   (half-)written with write error)
- * - reading can happend without special restriction
+ * - reading can happen without special restriction
  */
 static const struct file_operations picolcd_debug_flash_fops = {
 	.owner    = THIS_MODULE,
diff --git a/drivers/hid/hid-roccat-kone.h b/drivers/hid/hid-roccat-kone.h
index 64abb5b8a59a..4109a028e138 100644
--- a/drivers/hid/hid-roccat-kone.h
+++ b/drivers/hid/hid-roccat-kone.h
@@ -166,7 +166,7 @@ enum kone_mouse_events {
 	/* osd events are thought to be display on screen */
 	kone_mouse_event_osd_dpi = 0xa0,
 	kone_mouse_event_osd_profile = 0xb0,
-	/* TODO clarify meaning and occurence of kone_mouse_event_calibration */
+	/* TODO clarify meaning and occurrence of kone_mouse_event_calibration */
 	kone_mouse_event_calibration = 0xc0,
 	kone_mouse_event_call_overlong_macro = 0xe0,
 	/* switch events notify if user changed values with mousebutton click */
diff --git a/drivers/hid/hid-roccat-pyra.c b/drivers/hid/hid-roccat-pyra.c
index 160f481344f6..38280c055a19 100644
--- a/drivers/hid/hid-roccat-pyra.c
+++ b/drivers/hid/hid-roccat-pyra.c
@@ -652,7 +652,8 @@ static int pyra_raw_event(struct hid_device *hdev, struct hid_report *report,
 static const struct hid_device_id pyra_devices[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT,
 			USB_DEVICE_ID_ROCCAT_PYRA_WIRED) },
-	/* TODO add USB_DEVICE_ID_ROCCAT_PYRA_WIRELESS after testing */
+	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT,
+			USB_DEVICE_ID_ROCCAT_PYRA_WIRELESS) },
 	{ }
 };
 
diff --git a/drivers/hid/usbhid/hid-quirks.c b/drivers/hid/usbhid/hid-quirks.c
index 9a94b643ccde..a8426f15e9ab 100644
--- a/drivers/hid/usbhid/hid-quirks.c
+++ b/drivers/hid/usbhid/hid-quirks.c
@@ -59,6 +59,7 @@ static const struct hid_blacklist {
 	{ USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_COMBATSTICK, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_FLIGHT_SIM_ECLIPSE_YOKE, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_FLIGHT_SIM_YOKE, HID_QUIRK_NOGET },
+	{ USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_PRO_THROTTLE, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_PRO_PEDALS, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_3AXIS_5BUTTON_STICK, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_AXIS_295, HID_QUIRK_NOGET },
diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index 81131eda5544..060ef6327876 100644
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -315,11 +315,22 @@ config SENSORS_F71805F
 	  will be called f71805f.
 
 config SENSORS_F71882FG
-	tristate "Fintek F71858FG, F71862FG, F71882FG, F71889FG and F8000"
+	tristate "Fintek F71882FG and compatibles"
 	help
 	  If you say yes here you get support for hardware monitoring
-	  features of the Fintek F71858FG, F71862FG/71863FG, F71882FG/F71883FG,
-	  F71889FG and F8000 Super-I/O chips.
+	  features of many Fintek Super-I/O (LPC) chips. The currently
+	  supported chips are:
+	    F71808E
+	    F71858FG
+	    F71862FG
+	    F71863FG
+	    F71869F/E
+	    F71882FG
+	    F71883FG
+	    F71889FG/ED/A
+	    F8000
+	    F81801U
+	    F81865F
 
 	  This driver can also be built as a module.  If so, the module
 	  will be called f71882fg.
diff --git a/drivers/hwmon/abituguru.c b/drivers/hwmon/abituguru.c
index 0e05aa179eaa..e7d4c4687f02 100644
--- a/drivers/hwmon/abituguru.c
+++ b/drivers/hwmon/abituguru.c
@@ -1422,7 +1422,7 @@ static int __init abituguru_detect(void)
 	   at DATA and 0xAC, when this driver has already been loaded once
 	   DATA will hold 0x08. For most uGuru's CMD will hold 0xAC in either
 	   scenario but some will hold 0x00.
-	   Some uGuru's initally hold 0x09 at DATA and will only hold 0x08
+	   Some uGuru's initially hold 0x09 at DATA and will only hold 0x08
 	   after reading CMD first, so CMD must be read first! */
 	u8 cmd_val = inb_p(ABIT_UGURU_BASE + ABIT_UGURU_CMD);
 	u8 data_val = inb_p(ABIT_UGURU_BASE + ABIT_UGURU_DATA);
diff --git a/drivers/hwmon/abituguru3.c b/drivers/hwmon/abituguru3.c
index 034cebfcd273..e89d572e3320 100644
--- a/drivers/hwmon/abituguru3.c
+++ b/drivers/hwmon/abituguru3.c
@@ -151,7 +151,7 @@ struct abituguru3_data {
 	/* Pointer to the sensors info for the detected motherboard */
 	const struct abituguru3_sensor_info *sensors;
 
-	/* The abituguru3 supports upto 48 sensors, and thus has registers
+	/* The abituguru3 supports up to 48 sensors, and thus has registers
 	   sets for 48 sensors, for convienence reasons / simplicity of the
 	   code we always read and store all registers for all 48 sensors */
 
diff --git a/drivers/hwmon/adm1026.c b/drivers/hwmon/adm1026.c
index be0fdd58aa29..0531867484f4 100644
--- a/drivers/hwmon/adm1026.c
+++ b/drivers/hwmon/adm1026.c
@@ -175,7 +175,7 @@ static u16 ADM1026_REG_TEMP_OFFSET[] = { 0x1e, 0x6e, 0x6f };
  * these macros are called: arguments may be evaluated more than once.
  */
 
-/* IN are scaled acording to built-in resistors.  These are the
+/* IN are scaled according to built-in resistors.  These are the
  *   voltages corresponding to 3/4 of full scale (192 or 0xc0)
  *   NOTE: The -12V input needs an additional factor to account
  *      for the Vref pullup resistor.
diff --git a/drivers/hwmon/f71882fg.c b/drivers/hwmon/f71882fg.c
index a4d430ee7e20..ca07a32447c2 100644
--- a/drivers/hwmon/f71882fg.c
+++ b/drivers/hwmon/f71882fg.c
@@ -54,7 +54,9 @@
 #define SIO_F71882_ID		0x0541	/* Chipset ID */
 #define SIO_F71889_ID		0x0723	/* Chipset ID */
 #define SIO_F71889E_ID		0x0909	/* Chipset ID */
+#define SIO_F71889A_ID		0x1005	/* Chipset ID */
 #define SIO_F8000_ID		0x0581	/* Chipset ID */
+#define SIO_F81865_ID		0x0704	/* Chipset ID */
 
 #define REGION_LENGTH		8
 #define ADDR_REG_OFFSET		5
@@ -106,7 +108,7 @@ module_param(force_id, ushort, 0);
 MODULE_PARM_DESC(force_id, "Override the detected device ID");
 
 enum chips { f71808e, f71858fg, f71862fg, f71869, f71882fg, f71889fg,
-	     f71889ed, f8000 };
+	     f71889ed, f71889a, f8000, f81865f };
 
 static const char *f71882fg_names[] = {
 	"f71808e",
@@ -114,42 +116,76 @@ static const char *f71882fg_names[] = {
 	"f71862fg",
 	"f71869", /* Both f71869f and f71869e, reg. compatible and same id */
 	"f71882fg",
-	"f71889fg",
+	"f71889fg", /* f81801u too, same id */
 	"f71889ed",
+	"f71889a",
 	"f8000",
+	"f81865f",
 };
 
-static const char f71882fg_has_in[8][F71882FG_MAX_INS] = {
-	{ 1, 1, 1, 1, 1, 1, 0, 1, 1 }, /* f71808e */
-	{ 1, 1, 1, 0, 0, 0, 0, 0, 0 }, /* f71858fg */
-	{ 1, 1, 1, 1, 1, 1, 1, 1, 1 }, /* f71862fg */
-	{ 1, 1, 1, 1, 1, 1, 1, 1, 1 }, /* f71869 */
-	{ 1, 1, 1, 1, 1, 1, 1, 1, 1 }, /* f71882fg */
-	{ 1, 1, 1, 1, 1, 1, 1, 1, 1 }, /* f71889fg */
-	{ 1, 1, 1, 1, 1, 1, 1, 1, 1 }, /* f71889ed */
-	{ 1, 1, 1, 0, 0, 0, 0, 0, 0 }, /* f8000 */
+static const char f71882fg_has_in[][F71882FG_MAX_INS] = {
+	[f71808e]	= { 1, 1, 1, 1, 1, 1, 0, 1, 1 },
+	[f71858fg]	= { 1, 1, 1, 0, 0, 0, 0, 0, 0 },
+	[f71862fg]	= { 1, 1, 1, 1, 1, 1, 1, 1, 1 },
+	[f71869]	= { 1, 1, 1, 1, 1, 1, 1, 1, 1 },
+	[f71882fg]	= { 1, 1, 1, 1, 1, 1, 1, 1, 1 },
+	[f71889fg]	= { 1, 1, 1, 1, 1, 1, 1, 1, 1 },
+	[f71889ed]	= { 1, 1, 1, 1, 1, 1, 1, 1, 1 },
+	[f71889a]	= { 1, 1, 1, 1, 1, 1, 1, 1, 1 },
+	[f8000]		= { 1, 1, 1, 0, 0, 0, 0, 0, 0 },
+	[f81865f]	= { 1, 1, 1, 1, 1, 1, 1, 0, 0 },
 };
 
-static const char f71882fg_has_in1_alarm[8] = {
-	0, /* f71808e */
-	0, /* f71858fg */
-	0, /* f71862fg */
-	0, /* f71869 */
-	1, /* f71882fg */
-	1, /* f71889fg */
-	1, /* f71889ed */
-	0, /* f8000 */
+static const char f71882fg_has_in1_alarm[] = {
+	[f71808e]	= 0,
+	[f71858fg]	= 0,
+	[f71862fg]	= 0,
+	[f71869]	= 0,
+	[f71882fg]	= 1,
+	[f71889fg]	= 1,
+	[f71889ed]	= 1,
+	[f71889a]	= 1,
+	[f8000]		= 0,
+	[f81865f]	= 1,
 };
 
-static const char f71882fg_has_beep[8] = {
-	0, /* f71808e */
-	0, /* f71858fg */
-	1, /* f71862fg */
-	1, /* f71869 */
-	1, /* f71882fg */
-	1, /* f71889fg */
-	1, /* f71889ed */
-	0, /* f8000 */
+static const char f71882fg_has_beep[] = {
+	[f71808e]	= 0,
+	[f71858fg]	= 0,
+	[f71862fg]	= 1,
+	[f71869]	= 1,
+	[f71882fg]	= 1,
+	[f71889fg]	= 1,
+	[f71889ed]	= 1,
+	[f71889a]	= 1,
+	[f8000]		= 0,
+	[f81865f]	= 1,
+};
+
+static const char f71882fg_nr_fans[] = {
+	[f71808e]	= 3,
+	[f71858fg]	= 3,
+	[f71862fg]	= 3,
+	[f71869]	= 3,
+	[f71882fg]	= 4,
+	[f71889fg]	= 3,
+	[f71889ed]	= 3,
+	[f71889a]	= 3,
+	[f8000]		= 3,
+	[f81865f]	= 2,
+};
+
+static const char f71882fg_nr_temps[] = {
+	[f71808e]	= 2,
+	[f71858fg]	= 3,
+	[f71862fg]	= 3,
+	[f71869]	= 3,
+	[f71882fg]	= 3,
+	[f71889fg]	= 3,
+	[f71889ed]	= 3,
+	[f71889a]	= 3,
+	[f8000]		= 3,
+	[f81865f]	= 2,
 };
 
 static struct platform_device *f71882fg_pdev;
@@ -1071,9 +1107,9 @@ static u16 f71882fg_read_temp(struct f71882fg_data *data, int nr)
 static struct f71882fg_data *f71882fg_update_device(struct device *dev)
 {
 	struct f71882fg_data *data = dev_get_drvdata(dev);
+	int nr_fans = f71882fg_nr_fans[data->type];
+	int nr_temps = f71882fg_nr_temps[data->type];
 	int nr, reg, point;
-	int nr_fans = (data->type == f71882fg) ? 4 : 3;
-	int nr_temps = (data->type == f71808e) ? 2 : 3;
 
 	mutex_lock(&data->update_lock);
 
@@ -2042,8 +2078,9 @@ static int __devinit f71882fg_probe(struct platform_device *pdev)
 {
 	struct f71882fg_data *data;
 	struct f71882fg_sio_data *sio_data = pdev->dev.platform_data;
-	int err, i, nr_fans = (sio_data->type == f71882fg) ? 4 : 3;
-	int nr_temps = (sio_data->type == f71808e) ? 2 : 3;
+	int nr_fans = f71882fg_nr_fans[sio_data->type];
+	int nr_temps = f71882fg_nr_temps[sio_data->type];
+	int err, i;
 	u8 start_reg, reg;
 
 	data = kzalloc(sizeof(struct f71882fg_data), GFP_KERNEL);
@@ -2138,6 +2175,7 @@ static int __devinit f71882fg_probe(struct platform_device *pdev)
 			/* Fall through to select correct fan/pwm reg bank! */
 		case f71889fg:
 		case f71889ed:
+		case f71889a:
 			reg = f71882fg_read8(data, F71882FG_REG_FAN_FAULT_T);
 			if (reg & F71882FG_FAN_NEG_TEMP_EN)
 				data->auto_point_temp_signed = 1;
@@ -2163,16 +2201,12 @@ static int __devinit f71882fg_probe(struct platform_device *pdev)
 		case f71862fg:
 			err = (data->pwm_enable & 0x15) != 0x15;
 			break;
-		case f71808e:
-		case f71869:
-		case f71882fg:
-		case f71889fg:
-		case f71889ed:
-			err = 0;
-			break;
 		case f8000:
 			err = data->pwm_enable & 0x20;
 			break;
+		default:
+			err = 0;
+			break;
 		}
 		if (err) {
 			dev_err(&pdev->dev,
@@ -2199,6 +2233,7 @@ static int __devinit f71882fg_probe(struct platform_device *pdev)
 		case f71869:
 		case f71889fg:
 		case f71889ed:
+		case f71889a:
 			for (i = 0; i < nr_fans; i++) {
 				data->pwm_auto_point_mapping[i] =
 					f71882fg_read8(data,
@@ -2276,8 +2311,9 @@ exit_free:
 static int f71882fg_remove(struct platform_device *pdev)
 {
 	struct f71882fg_data *data = platform_get_drvdata(pdev);
-	int i, nr_fans = (data->type == f71882fg) ? 4 : 3;
-	int nr_temps = (data->type == f71808e) ? 2 : 3;
+	int nr_fans = f71882fg_nr_fans[data->type];
+	int nr_temps = f71882fg_nr_temps[data->type];
+	int i;
 	u8 start_reg = f71882fg_read8(data, F71882FG_REG_START);
 
 	if (data->hwmon_dev)
@@ -2406,9 +2442,15 @@ static int __init f71882fg_find(int sioaddr, unsigned short *address,
 	case SIO_F71889E_ID:
 		sio_data->type = f71889ed;
 		break;
+	case SIO_F71889A_ID:
+		sio_data->type = f71889a;
+		break;
 	case SIO_F8000_ID:
 		sio_data->type = f8000;
 		break;
+	case SIO_F81865_ID:
+		sio_data->type = f81865f;
+		break;
 	default:
 		pr_info("Unsupported Fintek device: %04x\n",
 			(unsigned int)devid);
diff --git a/drivers/hwmon/gpio-fan.c b/drivers/hwmon/gpio-fan.c
index f141a1de519c..89aa9fb743af 100644
--- a/drivers/hwmon/gpio-fan.c
+++ b/drivers/hwmon/gpio-fan.c
@@ -116,7 +116,7 @@ static int fan_alarm_init(struct gpio_fan_data *fan_data,
 		return 0;
 
 	INIT_WORK(&fan_data->alarm_work, fan_alarm_notify);
-	set_irq_type(alarm_irq, IRQ_TYPE_EDGE_BOTH);
+	irq_set_irq_type(alarm_irq, IRQ_TYPE_EDGE_BOTH);
 	err = request_irq(alarm_irq, fan_alarm_irq_handler, IRQF_SHARED,
 			  "GPIO fan alarm", fan_data);
 	if (err)
diff --git a/drivers/hwmon/lm85.c b/drivers/hwmon/lm85.c
index cf47e6e476ed..250d099ca398 100644
--- a/drivers/hwmon/lm85.c
+++ b/drivers/hwmon/lm85.c
@@ -130,7 +130,7 @@ enum chips {
    these macros are called: arguments may be evaluated more than once.
  */
 
-/* IN are scaled acording to built-in resistors */
+/* IN are scaled according to built-in resistors */
 static const int lm85_scaling[] = {  /* .001 Volts */
 	2500, 2250, 3300, 5000, 12000,
 	3300, 1500, 1800 /*EMC6D100*/
diff --git a/drivers/hwmon/lm90.c b/drivers/hwmon/lm90.c
index 812781c655a7..c43b4e9f96a9 100644
--- a/drivers/hwmon/lm90.c
+++ b/drivers/hwmon/lm90.c
@@ -356,7 +356,7 @@ static int lm90_read16(struct i2c_client *client, u8 regh, u8 regl, u16 *value)
 	/*
 	 * There is a trick here. We have to read two registers to have the
 	 * sensor temperature, but we have to beware a conversion could occur
-	 * inbetween the readings. The datasheet says we should either use
+	 * between the readings. The datasheet says we should either use
 	 * the one-shot conversion register, which we don't want to do
 	 * (disables hardware monitoring) or monitor the busy bit, which is
 	 * impossible (we can't read the values and monitor that bit at the
diff --git a/drivers/hwmon/pmbus_core.c b/drivers/hwmon/pmbus_core.c
index 6474512f49b0..edfb92e41735 100644
--- a/drivers/hwmon/pmbus_core.c
+++ b/drivers/hwmon/pmbus_core.c
@@ -752,7 +752,7 @@ static void pmbus_add_boolean_cmp(struct pmbus_data *data,
 static void pmbus_add_sensor(struct pmbus_data *data,
 			     const char *name, const char *type, int seq,
 			     int page, int reg, enum pmbus_sensor_classes class,
-			     bool update)
+			     bool update, bool readonly)
 {
 	struct pmbus_sensor *sensor;
 
@@ -765,7 +765,7 @@ static void pmbus_add_sensor(struct pmbus_data *data,
 	sensor->reg = reg;
 	sensor->class = class;
 	sensor->update = update;
-	if (update)
+	if (readonly)
 		PMBUS_ADD_GET_ATTR(data, sensor->name, sensor,
 				   data->num_sensors);
 	else
@@ -916,14 +916,14 @@ static void pmbus_find_attributes(struct i2c_client *client,
 
 		i0 = data->num_sensors;
 		pmbus_add_label(data, "in", in_index, "vin", 0);
-		pmbus_add_sensor(data, "in", "input", in_index,
-				 0, PMBUS_READ_VIN, PSC_VOLTAGE_IN, true);
+		pmbus_add_sensor(data, "in", "input", in_index, 0,
+				 PMBUS_READ_VIN, PSC_VOLTAGE_IN, true, true);
 		if (pmbus_check_word_register(client, 0,
 					      PMBUS_VIN_UV_WARN_LIMIT)) {
 			i1 = data->num_sensors;
 			pmbus_add_sensor(data, "in", "min", in_index,
 					 0, PMBUS_VIN_UV_WARN_LIMIT,
-					 PSC_VOLTAGE_IN, false);
+					 PSC_VOLTAGE_IN, false, false);
 			if (info->func[0] & PMBUS_HAVE_STATUS_INPUT) {
 				pmbus_add_boolean_reg(data, "in", "min_alarm",
 						      in_index,
@@ -937,7 +937,7 @@ static void pmbus_find_attributes(struct i2c_client *client,
 			i1 = data->num_sensors;
 			pmbus_add_sensor(data, "in", "lcrit", in_index,
 					 0, PMBUS_VIN_UV_FAULT_LIMIT,
-					 PSC_VOLTAGE_IN, false);
+					 PSC_VOLTAGE_IN, false, false);
 			if (info->func[0] & PMBUS_HAVE_STATUS_INPUT) {
 				pmbus_add_boolean_reg(data, "in", "lcrit_alarm",
 						      in_index,
@@ -951,7 +951,7 @@ static void pmbus_find_attributes(struct i2c_client *client,
 			i1 = data->num_sensors;
 			pmbus_add_sensor(data, "in", "max", in_index,
 					 0, PMBUS_VIN_OV_WARN_LIMIT,
-					 PSC_VOLTAGE_IN, false);
+					 PSC_VOLTAGE_IN, false, false);
 			if (info->func[0] & PMBUS_HAVE_STATUS_INPUT) {
 				pmbus_add_boolean_reg(data, "in", "max_alarm",
 						      in_index,
@@ -965,7 +965,7 @@ static void pmbus_find_attributes(struct i2c_client *client,
 			i1 = data->num_sensors;
 			pmbus_add_sensor(data, "in", "crit", in_index,
 					 0, PMBUS_VIN_OV_FAULT_LIMIT,
-					 PSC_VOLTAGE_IN, false);
+					 PSC_VOLTAGE_IN, false, false);
 			if (info->func[0] & PMBUS_HAVE_STATUS_INPUT) {
 				pmbus_add_boolean_reg(data, "in", "crit_alarm",
 						      in_index,
@@ -988,7 +988,7 @@ static void pmbus_find_attributes(struct i2c_client *client,
 	if (info->func[0] & PMBUS_HAVE_VCAP) {
 		pmbus_add_label(data, "in", in_index, "vcap", 0);
 		pmbus_add_sensor(data, "in", "input", in_index, 0,
-				 PMBUS_READ_VCAP, PSC_VOLTAGE_IN, true);
+				 PMBUS_READ_VCAP, PSC_VOLTAGE_IN, true, true);
 		in_index++;
 	}
 
@@ -1004,13 +1004,13 @@ static void pmbus_find_attributes(struct i2c_client *client,
 		i0 = data->num_sensors;
 		pmbus_add_label(data, "in", in_index, "vout", page + 1);
 		pmbus_add_sensor(data, "in", "input", in_index, page,
-				 PMBUS_READ_VOUT, PSC_VOLTAGE_OUT, true);
+				 PMBUS_READ_VOUT, PSC_VOLTAGE_OUT, true, true);
 		if (pmbus_check_word_register(client, page,
 					      PMBUS_VOUT_UV_WARN_LIMIT)) {
 			i1 = data->num_sensors;
 			pmbus_add_sensor(data, "in", "min", in_index, page,
 					 PMBUS_VOUT_UV_WARN_LIMIT,
-					 PSC_VOLTAGE_OUT, false);
+					 PSC_VOLTAGE_OUT, false, false);
 			if (info->func[page] & PMBUS_HAVE_STATUS_VOUT) {
 				pmbus_add_boolean_reg(data, "in", "min_alarm",
 						      in_index,
@@ -1025,7 +1025,7 @@ static void pmbus_find_attributes(struct i2c_client *client,
 			i1 = data->num_sensors;
 			pmbus_add_sensor(data, "in", "lcrit", in_index, page,
 					 PMBUS_VOUT_UV_FAULT_LIMIT,
-					 PSC_VOLTAGE_OUT, false);
+					 PSC_VOLTAGE_OUT, false, false);
 			if (info->func[page] & PMBUS_HAVE_STATUS_VOUT) {
 				pmbus_add_boolean_reg(data, "in", "lcrit_alarm",
 						      in_index,
@@ -1040,7 +1040,7 @@ static void pmbus_find_attributes(struct i2c_client *client,
 			i1 = data->num_sensors;
 			pmbus_add_sensor(data, "in", "max", in_index, page,
 					 PMBUS_VOUT_OV_WARN_LIMIT,
-					 PSC_VOLTAGE_OUT, false);
+					 PSC_VOLTAGE_OUT, false, false);
 			if (info->func[page] & PMBUS_HAVE_STATUS_VOUT) {
 				pmbus_add_boolean_reg(data, "in", "max_alarm",
 						      in_index,
@@ -1055,7 +1055,7 @@ static void pmbus_find_attributes(struct i2c_client *client,
 			i1 = data->num_sensors;
 			pmbus_add_sensor(data, "in", "crit", in_index, page,
 					 PMBUS_VOUT_OV_FAULT_LIMIT,
-					 PSC_VOLTAGE_OUT, false);
+					 PSC_VOLTAGE_OUT, false, false);
 			if (info->func[page] & PMBUS_HAVE_STATUS_VOUT) {
 				pmbus_add_boolean_reg(data, "in", "crit_alarm",
 						      in_index,
@@ -1088,14 +1088,14 @@ static void pmbus_find_attributes(struct i2c_client *client,
 	if (info->func[0] & PMBUS_HAVE_IIN) {
 		i0 = data->num_sensors;
 		pmbus_add_label(data, "curr", in_index, "iin", 0);
-		pmbus_add_sensor(data, "curr", "input", in_index,
-				 0, PMBUS_READ_IIN, PSC_CURRENT_IN, true);
+		pmbus_add_sensor(data, "curr", "input", in_index, 0,
+				 PMBUS_READ_IIN, PSC_CURRENT_IN, true, true);
 		if (pmbus_check_word_register(client, 0,
 					      PMBUS_IIN_OC_WARN_LIMIT)) {
 			i1 = data->num_sensors;
 			pmbus_add_sensor(data, "curr", "max", in_index,
 					 0, PMBUS_IIN_OC_WARN_LIMIT,
-					 PSC_CURRENT_IN, false);
+					 PSC_CURRENT_IN, false, false);
 			if (info->func[0] & PMBUS_HAVE_STATUS_INPUT) {
 				pmbus_add_boolean_reg(data, "curr", "max_alarm",
 						      in_index,
@@ -1108,7 +1108,7 @@ static void pmbus_find_attributes(struct i2c_client *client,
 			i1 = data->num_sensors;
 			pmbus_add_sensor(data, "curr", "crit", in_index,
 					 0, PMBUS_IIN_OC_FAULT_LIMIT,
-					 PSC_CURRENT_IN, false);
+					 PSC_CURRENT_IN, false, false);
 			if (info->func[0] & PMBUS_HAVE_STATUS_INPUT)
 				pmbus_add_boolean_reg(data, "curr",
 						      "crit_alarm",
@@ -1131,13 +1131,13 @@ static void pmbus_find_attributes(struct i2c_client *client,
 		i0 = data->num_sensors;
 		pmbus_add_label(data, "curr", in_index, "iout", page + 1);
 		pmbus_add_sensor(data, "curr", "input", in_index, page,
-				 PMBUS_READ_IOUT, PSC_CURRENT_OUT, true);
+				 PMBUS_READ_IOUT, PSC_CURRENT_OUT, true, true);
 		if (pmbus_check_word_register(client, page,
 					      PMBUS_IOUT_OC_WARN_LIMIT)) {
 			i1 = data->num_sensors;
 			pmbus_add_sensor(data, "curr", "max", in_index, page,
 					 PMBUS_IOUT_OC_WARN_LIMIT,
-					 PSC_CURRENT_OUT, false);
+					 PSC_CURRENT_OUT, false, false);
 			if (info->func[page] & PMBUS_HAVE_STATUS_IOUT) {
 				pmbus_add_boolean_reg(data, "curr", "max_alarm",
 						      in_index,
@@ -1151,7 +1151,7 @@ static void pmbus_find_attributes(struct i2c_client *client,
 			i1 = data->num_sensors;
 			pmbus_add_sensor(data, "curr", "lcrit", in_index, page,
 					 PMBUS_IOUT_UC_FAULT_LIMIT,
-					 PSC_CURRENT_OUT, false);
+					 PSC_CURRENT_OUT, false, false);
 			if (info->func[page] & PMBUS_HAVE_STATUS_IOUT) {
 				pmbus_add_boolean_reg(data, "curr",
 						      "lcrit_alarm",
@@ -1166,7 +1166,7 @@ static void pmbus_find_attributes(struct i2c_client *client,
 			i1 = data->num_sensors;
 			pmbus_add_sensor(data, "curr", "crit", in_index, page,
 					 PMBUS_IOUT_OC_FAULT_LIMIT,
-					 PSC_CURRENT_OUT, false);
+					 PSC_CURRENT_OUT, false, false);
 			if (info->func[page] & PMBUS_HAVE_STATUS_IOUT) {
 				pmbus_add_boolean_reg(data, "curr",
 						      "crit_alarm",
@@ -1199,13 +1199,13 @@ static void pmbus_find_attributes(struct i2c_client *client,
 		i0 = data->num_sensors;
 		pmbus_add_label(data, "power", in_index, "pin", 0);
 		pmbus_add_sensor(data, "power", "input", in_index,
-				 0, PMBUS_READ_PIN, PSC_POWER, true);
+				 0, PMBUS_READ_PIN, PSC_POWER, true, true);
 		if (pmbus_check_word_register(client, 0,
 					      PMBUS_PIN_OP_WARN_LIMIT)) {
 			i1 = data->num_sensors;
 			pmbus_add_sensor(data, "power", "max", in_index,
 					 0, PMBUS_PIN_OP_WARN_LIMIT, PSC_POWER,
-					 false);
+					 false, false);
 			if (info->func[0] & PMBUS_HAVE_STATUS_INPUT)
 				pmbus_add_boolean_reg(data, "power",
 						      "alarm",
@@ -1228,7 +1228,7 @@ static void pmbus_find_attributes(struct i2c_client *client,
 		i0 = data->num_sensors;
 		pmbus_add_label(data, "power", in_index, "pout", page + 1);
 		pmbus_add_sensor(data, "power", "input", in_index, page,
-				 PMBUS_READ_POUT, PSC_POWER, true);
+				 PMBUS_READ_POUT, PSC_POWER, true, true);
 		/*
 		 * Per hwmon sysfs API, power_cap is to be used to limit output
 		 * power.
@@ -1241,7 +1241,8 @@ static void pmbus_find_attributes(struct i2c_client *client,
 		if (pmbus_check_word_register(client, page, PMBUS_POUT_MAX)) {
 			i1 = data->num_sensors;
 			pmbus_add_sensor(data, "power", "cap", in_index, page,
-					 PMBUS_POUT_MAX, PSC_POWER, false);
+					 PMBUS_POUT_MAX, PSC_POWER,
+					 false, false);
 			need_alarm = true;
 		}
 		if (pmbus_check_word_register(client, page,
@@ -1249,7 +1250,7 @@ static void pmbus_find_attributes(struct i2c_client *client,
 			i1 = data->num_sensors;
 			pmbus_add_sensor(data, "power", "max", in_index, page,
 					 PMBUS_POUT_OP_WARN_LIMIT, PSC_POWER,
-					 false);
+					 false, false);
 			need_alarm = true;
 		}
 		if (need_alarm && (info->func[page] & PMBUS_HAVE_STATUS_IOUT))
@@ -1264,7 +1265,7 @@ static void pmbus_find_attributes(struct i2c_client *client,
 			i1 = data->num_sensors;
 			pmbus_add_sensor(data, "power", "crit", in_index, page,
 					 PMBUS_POUT_OP_FAULT_LIMIT, PSC_POWER,
-					 false);
+					 false, false);
 			if (info->func[page] & PMBUS_HAVE_STATUS_IOUT)
 				pmbus_add_boolean_reg(data, "power",
 						      "crit_alarm",
@@ -1302,7 +1303,7 @@ static void pmbus_find_attributes(struct i2c_client *client,
 			i0 = data->num_sensors;
 			pmbus_add_sensor(data, "temp", "input", in_index, page,
 					 pmbus_temp_registers[t],
-					 PSC_TEMPERATURE, true);
+					 PSC_TEMPERATURE, true, true);
 
 			/*
 			 * PMBus provides only one status register for TEMP1-3.
@@ -1323,7 +1324,7 @@ static void pmbus_find_attributes(struct i2c_client *client,
 				i1 = data->num_sensors;
 				pmbus_add_sensor(data, "temp", "min", in_index,
 						 page, PMBUS_UT_WARN_LIMIT,
-						 PSC_TEMPERATURE, true);
+						 PSC_TEMPERATURE, true, false);
 				if (info->func[page] & PMBUS_HAVE_STATUS_TEMP) {
 					pmbus_add_boolean_cmp(data, "temp",
 						"min_alarm", in_index, i1, i0,
@@ -1338,7 +1339,7 @@ static void pmbus_find_attributes(struct i2c_client *client,
 				pmbus_add_sensor(data, "temp", "lcrit",
 						 in_index, page,
 						 PMBUS_UT_FAULT_LIMIT,
-						 PSC_TEMPERATURE, true);
+						 PSC_TEMPERATURE, true, false);
 				if (info->func[page] & PMBUS_HAVE_STATUS_TEMP) {
 					pmbus_add_boolean_cmp(data, "temp",
 						"lcrit_alarm", in_index, i1, i0,
@@ -1352,7 +1353,7 @@ static void pmbus_find_attributes(struct i2c_client *client,
 				i1 = data->num_sensors;
 				pmbus_add_sensor(data, "temp", "max", in_index,
 						 page, PMBUS_OT_WARN_LIMIT,
-						 PSC_TEMPERATURE, true);
+						 PSC_TEMPERATURE, true, false);
 				if (info->func[page] & PMBUS_HAVE_STATUS_TEMP) {
 					pmbus_add_boolean_cmp(data, "temp",
 						"max_alarm", in_index, i0, i1,
@@ -1366,7 +1367,7 @@ static void pmbus_find_attributes(struct i2c_client *client,
 				i1 = data->num_sensors;
 				pmbus_add_sensor(data, "temp", "crit", in_index,
 						 page, PMBUS_OT_FAULT_LIMIT,
-						 PSC_TEMPERATURE, true);
+						 PSC_TEMPERATURE, true, false);
 				if (info->func[page] & PMBUS_HAVE_STATUS_TEMP) {
 					pmbus_add_boolean_cmp(data, "temp",
 						"crit_alarm", in_index, i0, i1,
@@ -1421,7 +1422,8 @@ static void pmbus_find_attributes(struct i2c_client *client,
 
 			i0 = data->num_sensors;
 			pmbus_add_sensor(data, "fan", "input", in_index, page,
-					 pmbus_fan_registers[f], PSC_FAN, true);
+					 pmbus_fan_registers[f], PSC_FAN, true,
+					 true);
 
 			/*
 			 * Each fan status register covers multiple fans,
diff --git a/drivers/hwmon/sht15.c b/drivers/hwmon/sht15.c
index 1a9c32d6893a..f4e617adb220 100644
--- a/drivers/hwmon/sht15.c
+++ b/drivers/hwmon/sht15.c
@@ -52,7 +52,7 @@
 #define SHT15_TSU		150	/* data setup time */
 
 /**
- * struct sht15_temppair - elements of voltage dependant temp calc
+ * struct sht15_temppair - elements of voltage dependent temp calc
  * @vdd:	supply voltage in microvolts
  * @d1:		see data sheet
  */
@@ -251,7 +251,7 @@ static inline int sht15_update_single_val(struct sht15_data *data,
 	enable_irq(gpio_to_irq(data->pdata->gpio_data));
 	if (gpio_get_value(data->pdata->gpio_data) == 0) {
 		disable_irq_nosync(gpio_to_irq(data->pdata->gpio_data));
-		/* Only relevant if the interrupt hasn't occured. */
+		/* Only relevant if the interrupt hasn't occurred. */
 		if (!atomic_read(&data->interrupt_handled))
 			schedule_work(&data->read_work);
 	}
@@ -452,7 +452,7 @@ static void sht15_bh_read_data(struct work_struct *work_s)
 		*/
 		atomic_set(&data->interrupt_handled, 0);
 		enable_irq(gpio_to_irq(data->pdata->gpio_data));
-		/* If still not occured or another handler has been scheduled */
+		/* If still not occurred or another handler has been scheduled */
 		if (gpio_get_value(data->pdata->gpio_data)
 		    || atomic_read(&data->interrupt_handled))
 			return;
diff --git a/drivers/hwmon/tmp102.c b/drivers/hwmon/tmp102.c
index 93187c3cb5e7..5bd194968801 100644
--- a/drivers/hwmon/tmp102.c
+++ b/drivers/hwmon/tmp102.c
@@ -166,7 +166,7 @@ static int __devinit tmp102_probe(struct i2c_client *client,
 
 	if (!i2c_check_functionality(client->adapter,
 				     I2C_FUNC_SMBUS_WORD_DATA)) {
-		dev_err(&client->dev, "adapter doesnt support SMBus word "
+		dev_err(&client->dev, "adapter doesn't support SMBus word "
 			"transactions\n");
 		return -ENODEV;
 	}
diff --git a/drivers/hwmon/twl4030-madc-hwmon.c b/drivers/hwmon/twl4030-madc-hwmon.c
index 97e22bef85ab..de5819199e2e 100644
--- a/drivers/hwmon/twl4030-madc-hwmon.c
+++ b/drivers/hwmon/twl4030-madc-hwmon.c
@@ -154,4 +154,4 @@ module_exit(twl4030_madc_hwmon_exit);
 MODULE_DESCRIPTION("TWL4030 ADC Hwmon driver");
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("J Keerthy");
-MODULE_ALIAS("twl4030_madc_hwmon");
+MODULE_ALIAS("platform:twl4030_madc_hwmon");
diff --git a/drivers/hwmon/w83791d.c b/drivers/hwmon/w83791d.c
index 400a88bde278..17cf1ab95521 100644
--- a/drivers/hwmon/w83791d.c
+++ b/drivers/hwmon/w83791d.c
@@ -556,7 +556,7 @@ static ssize_t show_fan_div(struct device *dev, struct device_attribute *attr,
 
 /* Note: we save and restore the fan minimum here, because its value is
    determined in part by the fan divisor.  This follows the principle of
-   least suprise; the user doesn't expect the fan minimum to change just
+   least surprise; the user doesn't expect the fan minimum to change just
    because the divisor changed. */
 static ssize_t store_fan_div(struct device *dev, struct device_attribute *attr,
 				const char *buf, size_t count)
diff --git a/drivers/hwmon/w83792d.c b/drivers/hwmon/w83792d.c
index 63841f8cec07..f3e7130c4cda 100644
--- a/drivers/hwmon/w83792d.c
+++ b/drivers/hwmon/w83792d.c
@@ -244,7 +244,7 @@ FAN_TO_REG(long rpm, int div)
 #define TEMP1_TO_REG(val)	(SENSORS_LIMIT(((val) < 0 ? (val)+0x100*1000 \
 					: (val)) / 1000, 0, 0xff))
 #define TEMP1_FROM_REG(val)	(((val) & 0x80 ? (val)-0x100 : (val)) * 1000)
-/* for temp2 and temp3, because they need addtional resolution */
+/* for temp2 and temp3, because they need additional resolution */
 #define TEMP_ADD_FROM_REG(val1, val2) \
 	((((val1) & 0x80 ? (val1)-0x100 \
 		: (val1)) * 1000) + ((val2 & 0x80) ? 500 : 0))
diff --git a/drivers/hwmon/w83793.c b/drivers/hwmon/w83793.c
index e3bdedfb5347..854f9117f1aa 100644
--- a/drivers/hwmon/w83793.c
+++ b/drivers/hwmon/w83793.c
@@ -1921,7 +1921,7 @@ static void w83793_update_nonvolatile(struct device *dev)
 	struct w83793_data *data = i2c_get_clientdata(client);
 	int i, j;
 	/*
-	   They are somewhat "stable" registers, and to update them everytime
+	   They are somewhat "stable" registers, and to update them every time
 	   takes so much time, it's just not worthy. Update them in a long
 	   interval to avoid exception.
 	 */
diff --git a/drivers/hwspinlock/Kconfig b/drivers/hwspinlock/Kconfig
index eb4af28f8567..1f29bab6b3e5 100644
--- a/drivers/hwspinlock/Kconfig
+++ b/drivers/hwspinlock/Kconfig
@@ -4,6 +4,7 @@
 
 config HWSPINLOCK
 	tristate "Generic Hardware Spinlock framework"
+	depends on ARCH_OMAP4
 	help
 	  Say y here to support the generic hardware spinlock framework.
 	  You only need to enable this if you have hardware spinlock module
diff --git a/drivers/i2c/algos/i2c-algo-pca.c b/drivers/i2c/algos/i2c-algo-pca.c
index 2b9a8f54bb2c..4ca9cf9cde73 100644
--- a/drivers/i2c/algos/i2c-algo-pca.c
+++ b/drivers/i2c/algos/i2c-algo-pca.c
@@ -343,7 +343,7 @@ static int pca_xfer(struct i2c_adapter *i2c_adap,
 
 	ret = curmsg;
  out:
-	DEB1("}}} transfered %d/%d messages. "
+	DEB1("}}} transferred %d/%d messages. "
 	     "status is %#04x. control is %#04x\n",
 	     curmsg, num, pca_status(adap),
 	     pca_get_con(adap));
diff --git a/drivers/i2c/busses/i2c-ali1535.c b/drivers/i2c/busses/i2c-ali1535.c
index 906a3ca50db6..dd364171f9c5 100644
--- a/drivers/i2c/busses/i2c-ali1535.c
+++ b/drivers/i2c/busses/i2c-ali1535.c
@@ -295,7 +295,7 @@ static int ali1535_transaction(struct i2c_adapter *adap)
 	}
 
 	/* Unfortunately the ALI SMB controller maps "no response" and "bus
-	 * collision" into a single bit. No reponse is the usual case so don't
+	 * collision" into a single bit. No response is the usual case so don't
 	 * do a printk.  This means that bus collisions go unreported.
 	 */
 	if (temp & ALI1535_STS_BUSERR) {
diff --git a/drivers/i2c/busses/i2c-ali15x3.c b/drivers/i2c/busses/i2c-ali15x3.c
index b14f6d68221d..83e8a60cdc86 100644
--- a/drivers/i2c/busses/i2c-ali15x3.c
+++ b/drivers/i2c/busses/i2c-ali15x3.c
@@ -318,7 +318,7 @@ static int ali15x3_transaction(struct i2c_adapter *adap)
 
 	/*
 	  Unfortunately the ALI SMB controller maps "no response" and "bus
-	  collision" into a single bit. No reponse is the usual case so don't
+	  collision" into a single bit. No response is the usual case so don't
 	  do a printk.
 	  This means that bus collisions go unreported.
 	*/
diff --git a/drivers/i2c/busses/i2c-davinci.c b/drivers/i2c/busses/i2c-davinci.c
index 5795c8398c7c..a76d85fa3ad7 100644
--- a/drivers/i2c/busses/i2c-davinci.c
+++ b/drivers/i2c/busses/i2c-davinci.c
@@ -355,7 +355,7 @@ i2c_davinci_xfer_msg(struct i2c_adapter *adap, struct i2c_msg *msg, int stop)
 	/*
 	 * Write mode register first as needed for correct behaviour
 	 * on OMAP-L138, but don't set STT yet to avoid a race with XRDY
-	 * occuring before we have loaded DXR
+	 * occurring before we have loaded DXR
 	 */
 	davinci_i2c_write_reg(dev, DAVINCI_I2C_MDR_REG, flag);
 
diff --git a/drivers/i2c/busses/i2c-designware.c b/drivers/i2c/busses/i2c-designware.c
index b664ed8bbdb3..b7a51c43b185 100644
--- a/drivers/i2c/busses/i2c-designware.c
+++ b/drivers/i2c/busses/i2c-designware.c
@@ -178,7 +178,7 @@ static char *abort_sources[] = {
  * @lock: protect this struct and IO registers
  * @clk: input reference clock
  * @cmd_err: run time hadware error code
- * @msgs: points to an array of messages currently being transfered
+ * @msgs: points to an array of messages currently being transferred
  * @msgs_num: the number of elements in msgs
  * @msg_write_idx: the element index of the current tx message in the msgs
  *	array
diff --git a/drivers/i2c/busses/i2c-elektor.c b/drivers/i2c/busses/i2c-elektor.c
index e5b1a3bf5b80..37e2e82a9c88 100644
--- a/drivers/i2c/busses/i2c-elektor.c
+++ b/drivers/i2c/busses/i2c-elektor.c
@@ -22,7 +22,7 @@
 /* With some changes from Kyösti Mälkki <kmalkki@cc.hut.fi> and even
    Frodo Looijaard <frodol@dds.nl> */
 
-/* Partialy rewriten by Oleg I. Vdovikin for mmapped support of
+/* Partially rewriten by Oleg I. Vdovikin for mmapped support of
    for Alpha Processor Inc. UP-2000(+) boards */
 
 #include <linux/kernel.h>
diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c
index ed2e0c5ea37c..72c0415f6f94 100644
--- a/drivers/i2c/busses/i2c-i801.c
+++ b/drivers/i2c/busses/i2c-i801.c
@@ -96,7 +96,7 @@
 #define SMBHSTCFG_SMB_SMI_EN	2
 #define SMBHSTCFG_I2C_EN	4
 
-/* Auxillary control register bits, ICH4+ only */
+/* Auxiliary control register bits, ICH4+ only */
 #define SMBAUXCTL_CRC		1
 #define SMBAUXCTL_E32B		2
 
diff --git a/drivers/i2c/busses/i2c-ibm_iic.c b/drivers/i2c/busses/i2c-ibm_iic.c
index e4f88dca99b5..3c110fbc409b 100644
--- a/drivers/i2c/busses/i2c-ibm_iic.c
+++ b/drivers/i2c/busses/i2c-ibm_iic.c
@@ -494,7 +494,7 @@ static int iic_xfer_bytes(struct ibm_iic_private* dev, struct i2c_msg* pm,
 		if (unlikely(ret < 0))
 			break;
 		else if (unlikely(ret != count)){
-			DBG("%d: xfer_bytes, requested %d, transfered %d\n",
+			DBG("%d: xfer_bytes, requested %d, transferred %d\n",
 				dev->idx, count, ret);
 
 			/* If it's not a last part of xfer, abort it */
@@ -593,7 +593,7 @@ static int iic_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num)
 	if (unlikely((in_8(&iic->extsts) & EXTSTS_BCS_MASK) != EXTSTS_BCS_FREE)){
 		DBG("%d: iic_xfer, bus is not free\n", dev->idx);
 
-		/* Usually it means something serious has happend.
+		/* Usually it means something serious has happened.
 		 * We *cannot* have unfinished previous transfer
 		 * so it doesn't make any sense to try to stop it.
 		 * Probably we were not able to recover from the
diff --git a/drivers/i2c/busses/i2c-intel-mid.c b/drivers/i2c/busses/i2c-intel-mid.c
index c71492782bbd..e828ac85cfa7 100644
--- a/drivers/i2c/busses/i2c-intel-mid.c
+++ b/drivers/i2c/busses/i2c-intel-mid.c
@@ -170,8 +170,8 @@ struct intel_mid_i2c_private {
 /* Raw Interrupt Status Register */
 #define IC_RAW_INTR_STAT	0x34		/* Read Only */
 #define GEN_CALL		(1 << 11)	/* General call */
-#define START_DET		(1 << 10)	/* (RE)START occured */
-#define STOP_DET		(1 << 9)	/* STOP occured */
+#define START_DET		(1 << 10)	/* (RE)START occurred */
+#define STOP_DET		(1 << 9)	/* STOP occurred */
 #define ACTIVITY		(1 << 8)	/* Bus busy */
 #define RX_DONE			(1 << 7)	/* Not used in Master mode */
 #define	TX_ABRT			(1 << 6)	/* Transmit Abort */
@@ -375,7 +375,7 @@ static int intel_mid_i2c_disable(struct i2c_adapter *adap)
  * I2C should be disabled prior to other register operation. If failed, an
  * errno is returned. Mask and Clear all interrpts, this should be done at
  * first.  Set common registers which will not be modified during normal
- * transfers, including: controll register, FIFO threshold and clock freq.
+ * transfers, including: control register, FIFO threshold and clock freq.
  * Check APB data width at last.
  */
 static int intel_mid_i2c_hwinit(struct intel_mid_i2c_private *i2c)
@@ -455,7 +455,7 @@ static inline bool intel_mid_i2c_address_neq(const struct i2c_msg *p1,
  *
  * By reading register IC_TX_ABRT_SOURCE, various transfer errors can be
  * distingushed. At present, no circumstances have been found out that
- * multiple errors would be occured simutaneously, so we simply use the
+ * multiple errors would be occurred simutaneously, so we simply use the
  * register value directly.
  *
  * At last the error bits are cleared. (Note clear ABRT_SBYTE_NORSTRT bit need
@@ -469,7 +469,7 @@ static void intel_mid_i2c_abort(struct intel_mid_i2c_private *i2c)
 
 	/* Single transfer error check:
 	 * According to databook, TX/RX FIFOs would be flushed when
-	 * the abort interrupt occured.
+	 * the abort interrupt occurred.
 	 */
 	if (abort & ABRT_MASTER_DIS)
 		dev_err(&adap->dev,
@@ -569,7 +569,7 @@ static int xfer_read(struct i2c_adapter *adap, unsigned char *buf, int length)
  * Return Values:
  * 0	if the read transfer succeeds
  * -ETIMEDOUT	if we cannot read the "raw" interrupt register
- * -EINVAL	if a transfer abort occured
+ * -EINVAL	if a transfer abort occurred
  *
  * For every byte, a "WRITE" command will be loaded into IC_DATA_CMD prior to
  * data transfer. The actual "write" operation will be performed when the
@@ -697,7 +697,7 @@ static int intel_mid_i2c_setup(struct i2c_adapter *adap,  struct i2c_msg *pmsg)
  * @num: number of i2c_msg
  *
  * Return Values:
- * +		number of messages transfered
+ * +		number of messages transferred
  * -ETIMEDOUT	If cannot disable I2C controller or read IC_STATUS
  * -EINVAL	If the address in i2c_msg is invalid
  *
diff --git a/drivers/i2c/busses/i2c-isch.c b/drivers/i2c/busses/i2c-isch.c
index ddc258edb34f..0682f8f277b0 100644
--- a/drivers/i2c/busses/i2c-isch.c
+++ b/drivers/i2c/busses/i2c-isch.c
@@ -141,7 +141,7 @@ static int sch_transaction(void)
  * This is the main access entry for i2c-sch access
  * adap is i2c_adapter pointer, addr is the i2c device bus address, read_write
  * (0 for read and 1 for write), size is i2c transaction type and data is the
- * union of transaction for data to be transfered or data read from bus.
+ * union of transaction for data to be transferred or data read from bus.
  * return 0 for success and others for failure.
  */
 static s32 sch_access(struct i2c_adapter *adap, u16 addr,
diff --git a/drivers/i2c/busses/i2c-mxs.c b/drivers/i2c/busses/i2c-mxs.c
index caf96dc8ca1b..7e78f7c87857 100644
--- a/drivers/i2c/busses/i2c-mxs.c
+++ b/drivers/i2c/busses/i2c-mxs.c
@@ -149,7 +149,7 @@ static void mxs_i2c_pioq_setup_write(struct mxs_i2c_dev *i2c,
 	 * We have to copy the slave address (u8) and buffer (arbitrary number
 	 * of u8) into the data register (u32). To achieve that, the u8 are put
 	 * into the MSBs of 'data' which is then shifted for the next u8. When
-	 * apropriate, 'data' is written to MXS_I2C_DATA. So, the first u32
+	 * appropriate, 'data' is written to MXS_I2C_DATA. So, the first u32
 	 * looks like this:
 	 *
 	 *  3          2          1          0
diff --git a/drivers/i2c/busses/i2c-nomadik.c b/drivers/i2c/busses/i2c-nomadik.c
index 594ed5059c4a..e10e5cf3751a 100644
--- a/drivers/i2c/busses/i2c-nomadik.c
+++ b/drivers/i2c/busses/i2c-nomadik.c
@@ -126,9 +126,9 @@ enum i2c_operation {
 /**
  * struct i2c_nmk_client - client specific data
  * @slave_adr: 7-bit slave address
- * @count: no. bytes to be transfered
+ * @count: no. bytes to be transferred
  * @buffer: client data buffer
- * @xfer_bytes: bytes transfered till now
+ * @xfer_bytes: bytes transferred till now
  * @operation: current I2C operation
  */
 struct i2c_nmk_client {
@@ -330,7 +330,7 @@ static void setup_i2c_controller(struct nmk_i2c_dev *dev)
 	 * slsu defines the data setup time after SCL clock
 	 * stretching in terms of i2c clk cycles. The
 	 * needed setup time for the three modes are 250ns,
-	 * 100ns, 10ns repectively thus leading to the values
+	 * 100ns, 10ns respectively thus leading to the values
 	 * of 14, 6, 2 for a 48 MHz i2c clk.
 	 */
 	writel(dev->cfg.slsu << 16, dev->virtbase + I2C_SCR);
@@ -364,7 +364,7 @@ static void setup_i2c_controller(struct nmk_i2c_dev *dev)
 	/*
 	 * set the speed mode. Currently we support
 	 * only standard and fast mode of operation
-	 * TODO - support for fast mode plus (upto 1Mb/s)
+	 * TODO - support for fast mode plus (up to 1Mb/s)
 	 * and high speed (up to 3.4 Mb/s)
 	 */
 	if (dev->cfg.sm > I2C_FREQ_MODE_FAST) {
diff --git a/drivers/i2c/busses/i2c-s6000.c b/drivers/i2c/busses/i2c-s6000.c
index cadc0216e02f..cb5d01e279c6 100644
--- a/drivers/i2c/busses/i2c-s6000.c
+++ b/drivers/i2c/busses/i2c-s6000.c
@@ -318,7 +318,7 @@ static int __devinit s6i2c_probe(struct platform_device *dev)
 	rc = request_irq(iface->irq, s6i2c_interrupt_entry,
 			 IRQF_SHARED, dev->name, iface);
 	if (rc) {
-		dev_err(&p_adap->dev, "s6i2c: cant get IRQ %d\n", iface->irq);
+		dev_err(&p_adap->dev, "s6i2c: can't get IRQ %d\n", iface->irq);
 		goto err_clk_dis;
 	}
 
diff --git a/drivers/i2c/busses/i2c-stu300.c b/drivers/i2c/busses/i2c-stu300.c
index 266135ddf7fa..99879617e686 100644
--- a/drivers/i2c/busses/i2c-stu300.c
+++ b/drivers/i2c/busses/i2c-stu300.c
@@ -497,7 +497,7 @@ static int stu300_set_clk(struct stu300_dev *dev, unsigned long clkrate)
 	u32 val;
 	int i = 0;
 
-	/* Locate the apropriate clock setting */
+	/* Locate the appropriate clock setting */
 	while (i < ARRAY_SIZE(stu300_clktable) - 1 &&
 	       stu300_clktable[i].rate < clkrate)
 		i++;
@@ -644,7 +644,7 @@ static int stu300_send_address(struct stu300_dev *dev,
 	ret = stu300_await_event(dev, STU300_EVENT_6);
 
 	/*
-	 * Clear any pending EVENT 6 no matter what happend during
+	 * Clear any pending EVENT 6 no matter what happened during
 	 * await_event.
 	 */
 	val = stu300_r8(dev->virtbase + I2C_CR);
diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c
index 3921f664c9c3..b4ab39b741eb 100644
--- a/drivers/i2c/busses/i2c-tegra.c
+++ b/drivers/i2c/busses/i2c-tegra.c
@@ -386,7 +386,7 @@ static irqreturn_t tegra_i2c_isr(int irq, void *dev_id)
 		dvc_writel(i2c_dev, DVC_STATUS_I2C_DONE_INTR, DVC_STATUS);
 	return IRQ_HANDLED;
 err:
-	/* An error occured, mask all interrupts */
+	/* An error occurred, mask all interrupts */
 	tegra_i2c_mask_irq(i2c_dev, I2C_INT_NO_ACK | I2C_INT_ARBITRATION_LOST |
 		I2C_INT_PACKET_XFER_COMPLETE | I2C_INT_TX_FIFO_DATA_REQ |
 		I2C_INT_RX_FIFO_DATA_REQ);
diff --git a/drivers/i2c/busses/i2c-xiic.c b/drivers/i2c/busses/i2c-xiic.c
index 9fbd7e6fe32e..e9d5ff4d1496 100644
--- a/drivers/i2c/busses/i2c-xiic.c
+++ b/drivers/i2c/busses/i2c-xiic.c
@@ -21,7 +21,7 @@
  * to the automotive development board Russellville. The copyright holder
  * as seen in the header is Intel corporation.
  * Mocean Laboratories forked off the GNU/Linux platform work into a
- * separate company called Pelagicore AB, which commited the code to the
+ * separate company called Pelagicore AB, which committed the code to the
  * kernel.
  */
 
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index e5f76a0372fd..70c30e6bce0b 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -348,7 +348,7 @@ EXPORT_SYMBOL(i2c_verify_client);
 
 
 /* This is a permissive address validity check, I2C address map constraints
- * are purposedly not enforced, except for the general call address. */
+ * are purposely not enforced, except for the general call address. */
 static int i2c_check_client_addr_validity(const struct i2c_client *client)
 {
 	if (client->flags & I2C_CLIENT_TEN) {
diff --git a/drivers/ide/cy82c693.c b/drivers/ide/cy82c693.c
index 9383f67deae1..3be60da52123 100644
--- a/drivers/ide/cy82c693.c
+++ b/drivers/ide/cy82c693.c
@@ -67,7 +67,7 @@ static void cy82c693_set_dma_mode(ide_hwif_t *hwif, ide_drive_t *drive)
 
 	/*
 	 * note: below we set the value for Bus Master IDE TimeOut Register
-	 * I'm not absolutly sure what this does, but it solved my problem
+	 * I'm not absolutely sure what this does, but it solved my problem
 	 * with IDE DMA and sound, so I now can play sound and work with
 	 * my IDE driver at the same time :-)
 	 *
diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c
index 5406b6ea3ad1..5a702d02c848 100644
--- a/drivers/ide/ide-floppy.c
+++ b/drivers/ide/ide-floppy.c
@@ -107,7 +107,7 @@ static int ide_floppy_callback(ide_drive_t *drive, int dsc)
 static void ide_floppy_report_error(struct ide_disk_obj *floppy,
 				    struct ide_atapi_pc *pc)
 {
-	/* supress error messages resulting from Medium not present */
+	/* suppress error messages resulting from Medium not present */
 	if (floppy->sense_key == 0x02 &&
 	    floppy->asc       == 0x3a &&
 	    floppy->ascq      == 0x00)
diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index f4077840d3ab..177db6d5b2f5 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -430,6 +430,26 @@ static inline void ide_unlock_host(struct ide_host *host)
 	}
 }
 
+static void __ide_requeue_and_plug(struct request_queue *q, struct request *rq)
+{
+	if (rq)
+		blk_requeue_request(q, rq);
+	if (rq || blk_peek_request(q)) {
+		/* Use 3ms as that was the old plug delay */
+		blk_delay_queue(q, 3);
+	}
+}
+
+void ide_requeue_and_plug(ide_drive_t *drive, struct request *rq)
+{
+	struct request_queue *q = drive->queue;
+	unsigned long flags;
+
+	spin_lock_irqsave(q->queue_lock, flags);
+	__ide_requeue_and_plug(q, rq);
+	spin_unlock_irqrestore(q->queue_lock, flags);
+}
+
 /*
  * Issue a new request to a device.
  */
@@ -440,6 +460,7 @@ void do_ide_request(struct request_queue *q)
 	struct ide_host *host = hwif->host;
 	struct request	*rq = NULL;
 	ide_startstop_t	startstop;
+	unsigned long queue_run_ms = 3; /* old plug delay */
 
 	spin_unlock_irq(q->queue_lock);
 
@@ -459,6 +480,9 @@ repeat:
 		prev_port = hwif->host->cur_port;
 		if (drive->dev_flags & IDE_DFLAG_SLEEPING &&
 		    time_after(drive->sleep, jiffies)) {
+			unsigned long left = jiffies - drive->sleep;
+
+			queue_run_ms = jiffies_to_msecs(left + 1);
 			ide_unlock_port(hwif);
 			goto plug_device;
 		}
@@ -546,22 +570,7 @@ plug_device:
 	ide_unlock_host(host);
 plug_device_2:
 	spin_lock_irq(q->queue_lock);
-
-	if (rq)
-		blk_requeue_request(q, rq);
-}
-
-void ide_requeue_and_plug(ide_drive_t *drive, struct request *rq)
-{
-	struct request_queue *q = drive->queue;
-	unsigned long flags;
-
-	spin_lock_irqsave(q->queue_lock, flags);
-
-	if (rq)
-		blk_requeue_request(q, rq);
-
-	spin_unlock_irqrestore(q->queue_lock, flags);
+	__ide_requeue_and_plug(q, rq);
 }
 
 static int drive_is_ready(ide_drive_t *drive)
diff --git a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c
index 34b9872f35d1..600c89a3d137 100644
--- a/drivers/ide/ide-taskfile.c
+++ b/drivers/ide/ide-taskfile.c
@@ -201,7 +201,7 @@ static u8 wait_drive_not_busy(ide_drive_t *drive)
 	u8 stat;
 
 	/*
-	 * Last sector was transfered, wait until device is ready.  This can
+	 * Last sector was transferred, wait until device is ready.  This can
 	 * take up to 6 ms on some ATAPI devices, so we will wait max 10 ms.
 	 */
 	for (retries = 0; retries < 1000; retries++) {
diff --git a/drivers/ide/piix.c b/drivers/ide/piix.c
index 1bdca49e5a03..b59d04c72051 100644
--- a/drivers/ide/piix.c
+++ b/drivers/ide/piix.c
@@ -8,8 +8,8 @@
  *
  * Documentation:
  *
- *	Publically available from Intel web site. Errata documentation
- * is also publically available. As an aide to anyone hacking on this
+ *	Publicly available from Intel web site. Errata documentation
+ * is also publicly available. As an aide to anyone hacking on this
  * driver the list of errata that are relevant is below.going back to
  * PIIX4. Older device documentation is now a bit tricky to find.
  *
diff --git a/drivers/ide/sis5513.c b/drivers/ide/sis5513.c
index db7f4e761dbc..4a0022567758 100644
--- a/drivers/ide/sis5513.c
+++ b/drivers/ide/sis5513.c
@@ -53,7 +53,7 @@
 
 #define DRV_NAME "sis5513"
 
-/* registers layout and init values are chipset family dependant */
+/* registers layout and init values are chipset family dependent */
 
 #define ATA_16		0x01
 #define ATA_33		0x02
@@ -406,7 +406,7 @@ static int __devinit sis_find_family(struct pci_dev *dev)
 					pci_name(dev));
 				chipset_family = ATA_133;
 
-				/* Check for 5513 compability mapping
+				/* Check for 5513 compatibility mapping
 				 * We must use this, else the port enabled code will fail,
 				 * as it expects the enablebits at 0x4a.
 				 */
diff --git a/drivers/ide/triflex.c b/drivers/ide/triflex.c
index 7953447eae0f..e53a1b78378b 100644
--- a/drivers/ide/triflex.c
+++ b/drivers/ide/triflex.c
@@ -22,7 +22,7 @@
  * Loosely based on the piix & svwks drivers.
  *
  * Documentation:
- *	Not publically available.
+ *	Not publicly available.
  */
 
 #include <linux/types.h>
diff --git a/drivers/ide/via82cxxx.c b/drivers/ide/via82cxxx.c
index d2a0997b78f8..f46f49cfcc28 100644
--- a/drivers/ide/via82cxxx.c
+++ b/drivers/ide/via82cxxx.c
@@ -14,7 +14,7 @@
  *	Andre Hedrick
  *
  * Documentation:
- *	Obsolete device documentation publically available from via.com.tw
+ *	Obsolete device documentation publicly available from via.com.tw
  *	Current device documentation available under NDA only
  */
 
diff --git a/drivers/infiniband/hw/amso1100/c2_ae.c b/drivers/infiniband/hw/amso1100/c2_ae.c
index 62af74295dbe..24f9e3a90e8e 100644
--- a/drivers/infiniband/hw/amso1100/c2_ae.c
+++ b/drivers/infiniband/hw/amso1100/c2_ae.c
@@ -157,7 +157,7 @@ void c2_ae_event(struct c2_dev *c2dev, u32 mq_index)
 	int status;
 
 	/*
-	 * retreive the message
+	 * retrieve the message
 	 */
 	wr = c2_mq_consume(mq);
 	if (!wr)
diff --git a/drivers/infiniband/hw/amso1100/c2_qp.c b/drivers/infiniband/hw/amso1100/c2_qp.c
index d8f4bb8bf42e..0d7b6f23caff 100644
--- a/drivers/infiniband/hw/amso1100/c2_qp.c
+++ b/drivers/infiniband/hw/amso1100/c2_qp.c
@@ -612,7 +612,7 @@ void c2_free_qp(struct c2_dev *c2dev, struct c2_qp *qp)
 	c2_unlock_cqs(send_cq, recv_cq);
 
 	/*
-	 * Destory qp in the rnic...
+	 * Destroy qp in the rnic...
 	 */
 	destroy_qp(c2dev, qp);
 
diff --git a/drivers/infiniband/hw/amso1100/c2_wr.h b/drivers/infiniband/hw/amso1100/c2_wr.h
index c65fbdd6e469..8d4b4ca463ca 100644
--- a/drivers/infiniband/hw/amso1100/c2_wr.h
+++ b/drivers/infiniband/hw/amso1100/c2_wr.h
@@ -131,7 +131,7 @@ enum c2wr_ids {
 	 *          All the preceding IDs are fixed, and must not change.
 	 *          You can add new IDs, but must not remove or reorder
 	 *          any IDs. If you do, YOU will ruin any hope of
-	 *          compatability between versions.
+	 *          compatibility between versions.
 	 */
 	CCWR_LAST,
 
@@ -242,7 +242,7 @@ enum c2_acf {
 /*
  *  to fix bug 1815 we define the max size allowable of the
  *  terminate message (per the IETF spec).Refer to the IETF
- *  protocal specification, section 12.1.6, page 64)
+ *  protocol specification, section 12.1.6, page 64)
  *  The message is prefixed by 20 types of DDP info.
  *
  *  Then the message has 6 bytes for the terminate control
diff --git a/drivers/infiniband/hw/ipath/ipath_driver.c b/drivers/infiniband/hw/ipath/ipath_driver.c
index 47db4bf34628..58c0e417bc30 100644
--- a/drivers/infiniband/hw/ipath/ipath_driver.c
+++ b/drivers/infiniband/hw/ipath/ipath_driver.c
@@ -2392,7 +2392,7 @@ void ipath_shutdown_device(struct ipath_devdata *dd)
 	/*
 	 * clear SerdesEnable and turn the leds off; do this here because
 	 * we are unloading, so don't count on interrupts to move along
-	 * Turn the LEDs off explictly for the same reason.
+	 * Turn the LEDs off explicitly for the same reason.
 	 */
 	dd->ipath_f_quiet_serdes(dd);
 
diff --git a/drivers/infiniband/hw/ipath/ipath_file_ops.c b/drivers/infiniband/hw/ipath/ipath_file_ops.c
index 6d4b29c4cd89..ee79a2d97b14 100644
--- a/drivers/infiniband/hw/ipath/ipath_file_ops.c
+++ b/drivers/infiniband/hw/ipath/ipath_file_ops.c
@@ -1972,7 +1972,7 @@ static int ipath_do_user_init(struct file *fp,
 	 * 0 to 1.  So for those chips, we turn it off and then back on.
 	 * This will (very briefly) affect any other open ports, but the
 	 * duration is very short, and therefore isn't an issue.  We
-	 * explictly set the in-memory tail copy to 0 beforehand, so we
+	 * explicitly set the in-memory tail copy to 0 beforehand, so we
 	 * don't have to wait to be sure the DMA update has happened
 	 * (chip resets head/tail to 0 on transition to enable).
 	 */
diff --git a/drivers/infiniband/hw/ipath/ipath_init_chip.c b/drivers/infiniband/hw/ipath/ipath_init_chip.c
index fef0f4201257..7c1eebe8c7c9 100644
--- a/drivers/infiniband/hw/ipath/ipath_init_chip.c
+++ b/drivers/infiniband/hw/ipath/ipath_init_chip.c
@@ -335,7 +335,7 @@ done:
  * @dd: the infinipath device
  *
  * sanity check at least some of the values after reset, and
- * ensure no receive or transmit (explictly, in case reset
+ * ensure no receive or transmit (explicitly, in case reset
  * failed
  */
 static int init_chip_reset(struct ipath_devdata *dd)
diff --git a/drivers/infiniband/hw/ipath/ipath_ud.c b/drivers/infiniband/hw/ipath/ipath_ud.c
index 7420715256a9..e8a2a915251e 100644
--- a/drivers/infiniband/hw/ipath/ipath_ud.c
+++ b/drivers/infiniband/hw/ipath/ipath_ud.c
@@ -86,7 +86,7 @@ static void ipath_ud_loopback(struct ipath_qp *sqp, struct ipath_swqe *swqe)
 	}
 
 	/*
-	 * A GRH is expected to preceed the data even if not
+	 * A GRH is expected to precede the data even if not
 	 * present on the wire.
 	 */
 	length = swqe->length;
@@ -515,7 +515,7 @@ void ipath_ud_rcv(struct ipath_ibdev *dev, struct ipath_ib_header *hdr,
 	}
 
 	/*
-	 * A GRH is expected to preceed the data even if not
+	 * A GRH is expected to precede the data even if not
 	 * present on the wire.
 	 */
 	wc.byte_len = tlen + sizeof(struct ib_grh);
diff --git a/drivers/infiniband/hw/ipath/ipath_user_sdma.c b/drivers/infiniband/hw/ipath/ipath_user_sdma.c
index be78f6643c06..f5cb13b21445 100644
--- a/drivers/infiniband/hw/ipath/ipath_user_sdma.c
+++ b/drivers/infiniband/hw/ipath/ipath_user_sdma.c
@@ -236,7 +236,7 @@ static int ipath_user_sdma_num_pages(const struct iovec *iov)
 	return 1 + ((epage - spage) >> PAGE_SHIFT);
 }
 
-/* truncate length to page boundry */
+/* truncate length to page boundary */
 static int ipath_user_sdma_page_length(unsigned long addr, unsigned long len)
 {
 	const unsigned long offset = addr & ~PAGE_MASK;
diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c
index c7a6213c6996..fbe1973f77b0 100644
--- a/drivers/infiniband/hw/mlx4/main.c
+++ b/drivers/infiniband/hw/mlx4/main.c
@@ -625,7 +625,7 @@ static int mlx4_ib_mcg_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
 
 	err = mlx4_multicast_attach(mdev->dev, &mqp->mqp, gid->raw,
 				    !!(mqp->flags & MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK),
-				    MLX4_PROTOCOL_IB);
+				    MLX4_PROT_IB_IPV6);
 	if (err)
 		return err;
 
@@ -636,7 +636,7 @@ static int mlx4_ib_mcg_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
 	return 0;
 
 err_add:
-	mlx4_multicast_detach(mdev->dev, &mqp->mqp, gid->raw, MLX4_PROTOCOL_IB);
+	mlx4_multicast_detach(mdev->dev, &mqp->mqp, gid->raw, MLX4_PROT_IB_IPV6);
 	return err;
 }
 
@@ -666,7 +666,7 @@ static int mlx4_ib_mcg_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
 	struct mlx4_ib_gid_entry *ge;
 
 	err = mlx4_multicast_detach(mdev->dev,
-				    &mqp->mqp, gid->raw, MLX4_PROTOCOL_IB);
+				    &mqp->mqp, gid->raw, MLX4_PROT_IB_IPV6);
 	if (err)
 		return err;
 
@@ -721,7 +721,6 @@ static int init_node_data(struct mlx4_ib_dev *dev)
 	if (err)
 		goto out;
 
-	dev->dev->rev_id = be32_to_cpup((__be32 *) (out_mad->data + 32));
 	memcpy(&dev->ib_dev.node_guid, out_mad->data + 12, 8);
 
 out:
@@ -954,7 +953,7 @@ static int mlx4_ib_netdev_event(struct notifier_block *this, unsigned long event
 	mlx4_foreach_ib_transport_port(port, ibdev->dev) {
 		oldnd = iboe->netdevs[port - 1];
 		iboe->netdevs[port - 1] =
-			mlx4_get_protocol_dev(ibdev->dev, MLX4_PROTOCOL_EN, port);
+			mlx4_get_protocol_dev(ibdev->dev, MLX4_PROT_ETH, port);
 		if (oldnd != iboe->netdevs[port - 1]) {
 			if (iboe->netdevs[port - 1])
 				netdev_added(ibdev, port);
@@ -1207,7 +1206,7 @@ static struct mlx4_interface mlx4_ib_interface = {
 	.add		= mlx4_ib_add,
 	.remove		= mlx4_ib_remove,
 	.event		= mlx4_ib_event,
-	.protocol	= MLX4_PROTOCOL_IB
+	.protocol	= MLX4_PROT_IB_IPV6
 };
 
 static int __init mlx4_ib_init(void)
diff --git a/drivers/infiniband/hw/nes/nes_cm.c b/drivers/infiniband/hw/nes/nes_cm.c
index ef3291551bc6..33c7eedaba6c 100644
--- a/drivers/infiniband/hw/nes/nes_cm.c
+++ b/drivers/infiniband/hw/nes/nes_cm.c
@@ -1116,7 +1116,7 @@ static int nes_addr_resolve_neigh(struct nes_vnic *nesvnic, u32 dst_ip, int arpi
 		return rc;
 	}
 
-	if (netif_is_bond_slave(netdev))
+	if (netif_is_bond_slave(nesvnic->netdev))
 		netdev = nesvnic->netdev->master;
 	else
 		netdev = nesvnic->netdev;
@@ -1397,7 +1397,7 @@ static void handle_fin_pkt(struct nes_cm_node *cm_node)
 		cleanup_retrans_entry(cm_node);
 		cm_node->state = NES_CM_STATE_CLOSING;
 		send_ack(cm_node, NULL);
-		/* Wait for ACK as this is simultanous close..
+		/* Wait for ACK as this is simultaneous close..
 		* After we receive ACK, do not send anything..
 		* Just rm the node.. Done.. */
 		break;
diff --git a/drivers/infiniband/hw/nes/nes_hw.c b/drivers/infiniband/hw/nes/nes_hw.c
index 08c194861af5..10d0a5ec9add 100644
--- a/drivers/infiniband/hw/nes/nes_hw.c
+++ b/drivers/infiniband/hw/nes/nes_hw.c
@@ -80,7 +80,7 @@ static void nes_terminate_start_timer(struct nes_qp *nesqp);
 
 #ifdef CONFIG_INFINIBAND_NES_DEBUG
 static unsigned char *nes_iwarp_state_str[] = {
-	"Non-Existant",
+	"Non-Existent",
 	"Idle",
 	"RTS",
 	"Closing",
@@ -91,7 +91,7 @@ static unsigned char *nes_iwarp_state_str[] = {
 };
 
 static unsigned char *nes_tcp_state_str[] = {
-	"Non-Existant",
+	"Non-Existent",
 	"Closed",
 	"Listen",
 	"SYN Sent",
diff --git a/drivers/infiniband/hw/nes/nes_nic.c b/drivers/infiniband/hw/nes/nes_nic.c
index 2c9c1933bbe3..e96b8fb5d44c 100644
--- a/drivers/infiniband/hw/nes/nes_nic.c
+++ b/drivers/infiniband/hw/nes/nes_nic.c
@@ -902,7 +902,7 @@ static void nes_netdev_set_multicast_list(struct net_device *netdev)
 		nes_write_indexed(nesdev, NES_IDX_NIC_UNICAST_ALL, nic_active);
 	}
 
-	nes_debug(NES_DBG_NIC_RX, "Number of MC entries = %d, Promiscous = %d, All Multicast = %d.\n",
+	nes_debug(NES_DBG_NIC_RX, "Number of MC entries = %d, Promiscuous = %d, All Multicast = %d.\n",
 		  mc_count, !!(netdev->flags & IFF_PROMISC),
 		  !!(netdev->flags & IFF_ALLMULTI));
 	if (!mc_all_on) {
diff --git a/drivers/infiniband/hw/qib/qib.h b/drivers/infiniband/hw/qib/qib.h
index 73225eee3cc6..769a1d9da4b7 100644
--- a/drivers/infiniband/hw/qib/qib.h
+++ b/drivers/infiniband/hw/qib/qib.h
@@ -653,7 +653,7 @@ struct diag_observer_list_elt;
 
 /* device data struct now contains only "general per-device" info.
  * fields related to a physical IB port are in a qib_pportdata struct,
- * described above) while fields only used by a particualr chip-type are in
+ * described above) while fields only used by a particular chip-type are in
  * a qib_chipdata struct, whose contents are opaque to this file.
  */
 struct qib_devdata {
diff --git a/drivers/infiniband/hw/qib/qib_file_ops.c b/drivers/infiniband/hw/qib/qib_file_ops.c
index 75bfad16c114..406fca50d036 100644
--- a/drivers/infiniband/hw/qib/qib_file_ops.c
+++ b/drivers/infiniband/hw/qib/qib_file_ops.c
@@ -1539,7 +1539,7 @@ done_chk_sdma:
 
 		/*
 		 * If process has NOT already set it's affinity, select and
-		 * reserve a processor for it, as a rendevous for all
+		 * reserve a processor for it, as a rendezvous for all
 		 * users of the driver.  If they don't actually later
 		 * set affinity to this cpu, or set it to some other cpu,
 		 * it just means that sooner or later we don't recommend
@@ -1657,7 +1657,7 @@ static int qib_do_user_init(struct file *fp,
 	 * 0 to 1.  So for those chips, we turn it off and then back on.
 	 * This will (very briefly) affect any other open ctxts, but the
 	 * duration is very short, and therefore isn't an issue.  We
-	 * explictly set the in-memory tail copy to 0 beforehand, so we
+	 * explicitly set the in-memory tail copy to 0 beforehand, so we
 	 * don't have to wait to be sure the DMA update has happened
 	 * (chip resets head/tail to 0 on transition to enable).
 	 */
diff --git a/drivers/infiniband/hw/qib/qib_iba6120.c b/drivers/infiniband/hw/qib/qib_iba6120.c
index 774dea897e9c..7de4b7ebffc5 100644
--- a/drivers/infiniband/hw/qib/qib_iba6120.c
+++ b/drivers/infiniband/hw/qib/qib_iba6120.c
@@ -1799,7 +1799,7 @@ static int qib_6120_setup_reset(struct qib_devdata *dd)
 	/*
 	 * Keep chip from being accessed until we are ready.  Use
 	 * writeq() directly, to allow the write even though QIB_PRESENT
-	 * isnt' set.
+	 * isn't' set.
 	 */
 	dd->flags &= ~(QIB_INITTED | QIB_PRESENT);
 	dd->int_counter = 0; /* so we check interrupts work again */
@@ -2171,7 +2171,7 @@ static void rcvctrl_6120_mod(struct qib_pportdata *ppd, unsigned int op,
 		 * Init the context registers also; if we were
 		 * disabled, tail and head should both be zero
 		 * already from the enable, but since we don't
-		 * know, we have to do it explictly.
+		 * know, we have to do it explicitly.
 		 */
 		val = qib_read_ureg32(dd, ur_rcvegrindextail, ctxt);
 		qib_write_ureg(dd, ur_rcvegrindexhead, val, ctxt);
diff --git a/drivers/infiniband/hw/qib/qib_iba7220.c b/drivers/infiniband/hw/qib/qib_iba7220.c
index de799f17cb9e..74fe0360bec7 100644
--- a/drivers/infiniband/hw/qib/qib_iba7220.c
+++ b/drivers/infiniband/hw/qib/qib_iba7220.c
@@ -2111,7 +2111,7 @@ static int qib_setup_7220_reset(struct qib_devdata *dd)
 	/*
 	 * Keep chip from being accessed until we are ready.  Use
 	 * writeq() directly, to allow the write even though QIB_PRESENT
-	 * isnt' set.
+	 * isn't' set.
 	 */
 	dd->flags &= ~(QIB_INITTED | QIB_PRESENT);
 	dd->int_counter = 0; /* so we check interrupts work again */
@@ -2479,7 +2479,7 @@ static int qib_7220_set_ib_cfg(struct qib_pportdata *ppd, int which, u32 val)
 		 * we command the link down.  As with width, only write the
 		 * actual register if the link is currently down, otherwise
 		 * takes effect on next link change.  Since setting is being
-		 * explictly requested (via MAD or sysfs), clear autoneg
+		 * explicitly requested (via MAD or sysfs), clear autoneg
 		 * failure status if speed autoneg is enabled.
 		 */
 		ppd->link_speed_enabled = val;
@@ -2778,7 +2778,7 @@ static void rcvctrl_7220_mod(struct qib_pportdata *ppd, unsigned int op,
 		 * Init the context registers also; if we were
 		 * disabled, tail and head should both be zero
 		 * already from the enable, but since we don't
-		 * know, we have to do it explictly.
+		 * know, we have to do it explicitly.
 		 */
 		val = qib_read_ureg32(dd, ur_rcvegrindextail, ctxt);
 		qib_write_ureg(dd, ur_rcvegrindexhead, val, ctxt);
diff --git a/drivers/infiniband/hw/qib/qib_iba7322.c b/drivers/infiniband/hw/qib/qib_iba7322.c
index 4a2d21e15a70..55de3cf3441c 100644
--- a/drivers/infiniband/hw/qib/qib_iba7322.c
+++ b/drivers/infiniband/hw/qib/qib_iba7322.c
@@ -3299,7 +3299,7 @@ static int qib_do_7322_reset(struct qib_devdata *dd)
 	/*
 	 * Keep chip from being accessed until we are ready.  Use
 	 * writeq() directly, to allow the write even though QIB_PRESENT
-	 * isnt' set.
+	 * isn't' set.
 	 */
 	dd->flags &= ~(QIB_INITTED | QIB_PRESENT | QIB_BADINTR);
 	dd->flags |= QIB_DOING_RESET;
@@ -3727,7 +3727,7 @@ static int qib_7322_set_ib_cfg(struct qib_pportdata *ppd, int which, u32 val)
 		/*
 		 * As with width, only write the actual register if the
 		 * link is currently down, otherwise takes effect on next
-		 * link change.  Since setting is being explictly requested
+		 * link change.  Since setting is being explicitly requested
 		 * (via MAD or sysfs), clear autoneg failure status if speed
 		 * autoneg is enabled.
 		 */
@@ -4163,7 +4163,7 @@ static void rcvctrl_7322_mod(struct qib_pportdata *ppd, unsigned int op,
 		 * Init the context registers also; if we were
 		 * disabled, tail and head should both be zero
 		 * already from the enable, but since we don't
-		 * know, we have to do it explictly.
+		 * know, we have to do it explicitly.
 		 */
 		val = qib_read_ureg32(dd, ur_rcvegrindextail, ctxt);
 		qib_write_ureg(dd, ur_rcvegrindexhead, val, ctxt);
@@ -7483,7 +7483,7 @@ static int serdes_7322_init_new(struct qib_pportdata *ppd)
 	/*       Baseline Wander Correction Gain [13:4-0] (leave as default) */
 	/*       Baseline Wander Correction Gain [3:7-5] (leave as default) */
 	/*       Data Rate Select [5:7-6] (leave as default) */
-	/*       RX Parralel Word Width [3:10-8] (leave as default) */
+	/*       RX Parallel Word Width [3:10-8] (leave as default) */
 
 	/* RX REST */
 	/*       Single- or Multi-channel reset */
diff --git a/drivers/infiniband/hw/qib/qib_init.c b/drivers/infiniband/hw/qib/qib_init.c
index ffefb78b8949..a01f3fce8eb3 100644
--- a/drivers/infiniband/hw/qib/qib_init.c
+++ b/drivers/infiniband/hw/qib/qib_init.c
@@ -346,7 +346,7 @@ done:
  * @dd: the qlogic_ib device
  *
  * sanity check at least some of the values after reset, and
- * ensure no receive or transmit (explictly, in case reset
+ * ensure no receive or transmit (explicitly, in case reset
  * failed
  */
 static int init_after_reset(struct qib_devdata *dd)
diff --git a/drivers/infiniband/hw/qib/qib_mad.h b/drivers/infiniband/hw/qib/qib_mad.h
index 147aff9117d7..7840ab593bcf 100644
--- a/drivers/infiniband/hw/qib/qib_mad.h
+++ b/drivers/infiniband/hw/qib/qib_mad.h
@@ -73,7 +73,7 @@ struct ib_mad_notice_attr {
 
 		struct {
 			__be16	reserved;
-			__be16	lid;		/* LID where change occured */
+			__be16	lid;		/* LID where change occurred */
 			u8	reserved2;
 			u8	local_changes;	/* low bit - local changes */
 			__be32	new_cap_mask;	/* new capability mask */
diff --git a/drivers/infiniband/hw/qib/qib_twsi.c b/drivers/infiniband/hw/qib/qib_twsi.c
index 6f31ca5039db..ddde72e11edb 100644
--- a/drivers/infiniband/hw/qib/qib_twsi.c
+++ b/drivers/infiniband/hw/qib/qib_twsi.c
@@ -41,7 +41,7 @@
  * QLogic_IB "Two Wire Serial Interface" driver.
  * Originally written for a not-quite-i2c serial eeprom, which is
  * still used on some supported boards. Later boards have added a
- * variety of other uses, most board-specific, so teh bit-boffing
+ * variety of other uses, most board-specific, so the bit-boffing
  * part has been split off to this file, while the other parts
  * have been moved to chip-specific files.
  *
diff --git a/drivers/infiniband/hw/qib/qib_ud.c b/drivers/infiniband/hw/qib/qib_ud.c
index 4a51fd1e9cb7..828609fa4d28 100644
--- a/drivers/infiniband/hw/qib/qib_ud.c
+++ b/drivers/infiniband/hw/qib/qib_ud.c
@@ -116,7 +116,7 @@ static void qib_ud_loopback(struct qib_qp *sqp, struct qib_swqe *swqe)
 	}
 
 	/*
-	 * A GRH is expected to preceed the data even if not
+	 * A GRH is expected to precede the data even if not
 	 * present on the wire.
 	 */
 	length = swqe->length;
@@ -520,7 +520,7 @@ void qib_ud_rcv(struct qib_ibport *ibp, struct qib_ib_header *hdr,
 		goto drop;
 
 	/*
-	 * A GRH is expected to preceed the data even if not
+	 * A GRH is expected to precede the data even if not
 	 * present on the wire.
 	 */
 	wc.byte_len = tlen + sizeof(struct ib_grh);
diff --git a/drivers/infiniband/hw/qib/qib_user_sdma.c b/drivers/infiniband/hw/qib/qib_user_sdma.c
index 66208bcd7c13..82442085cbe6 100644
--- a/drivers/infiniband/hw/qib/qib_user_sdma.c
+++ b/drivers/infiniband/hw/qib/qib_user_sdma.c
@@ -239,7 +239,7 @@ static int qib_user_sdma_num_pages(const struct iovec *iov)
 }
 
 /*
- * Truncate length to page boundry.
+ * Truncate length to page boundary.
  */
 static int qib_user_sdma_page_length(unsigned long addr, unsigned long len)
 {
diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.h b/drivers/infiniband/ulp/iser/iscsi_iser.h
index f1df01567bb6..2f02ab0ccc1e 100644
--- a/drivers/infiniband/ulp/iser/iscsi_iser.h
+++ b/drivers/infiniband/ulp/iser/iscsi_iser.h
@@ -91,7 +91,7 @@
 #define SIZE_4K	(1UL << SHIFT_4K)
 #define MASK_4K	(~(SIZE_4K-1))
 
-					/* support upto 512KB in one RDMA */
+					/* support up to 512KB in one RDMA */
 #define ISCSI_ISER_SG_TABLESIZE         (0x80000 >> SHIFT_4K)
 #define ISER_DEF_CMD_PER_LUN		128
 
diff --git a/drivers/input/joydev.c b/drivers/input/joydev.c
index 3182c9cd1b0e..5688b5c88f24 100644
--- a/drivers/input/joydev.c
+++ b/drivers/input/joydev.c
@@ -758,7 +758,7 @@ static void joydev_remove_chrdev(struct joydev *joydev)
 }
 
 /*
- * Mark device non-existant. This disables writes, ioctls and
+ * Mark device non-existent. This disables writes, ioctls and
  * prevents new users from opening the device. Already posted
  * blocking reads will stay, however new ones will fail.
  */
@@ -777,7 +777,7 @@ static void joydev_cleanup(struct joydev *joydev)
 	joydev_hangup(joydev);
 	joydev_remove_chrdev(joydev);
 
-	/* joydev is marked dead so noone else accesses joydev->open */
+	/* joydev is marked dead so no one else accesses joydev->open */
 	if (joydev->open)
 		input_close_device(handle);
 }
diff --git a/drivers/input/joystick/a3d.c b/drivers/input/joystick/a3d.c
index d259b41354b8..1639ab2b94b7 100644
--- a/drivers/input/joystick/a3d.c
+++ b/drivers/input/joystick/a3d.c
@@ -3,7 +3,7 @@
  */
 
 /*
- * FP-Gaming Assasin 3D joystick driver for Linux
+ * FP-Gaming Assassin 3D joystick driver for Linux
  */
 
 /*
@@ -34,7 +34,7 @@
 #include <linux/input.h>
 #include <linux/jiffies.h>
 
-#define DRIVER_DESC	"FP-Gaming Assasin 3D joystick driver"
+#define DRIVER_DESC	"FP-Gaming Assassin 3D joystick driver"
 
 MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
 MODULE_DESCRIPTION(DRIVER_DESC);
diff --git a/drivers/input/keyboard/davinci_keyscan.c b/drivers/input/keyboard/davinci_keyscan.c
index a91ee941b5c1..cd89d17162a3 100644
--- a/drivers/input/keyboard/davinci_keyscan.c
+++ b/drivers/input/keyboard/davinci_keyscan.c
@@ -5,7 +5,7 @@
  *
  * Author: Miguel Aguilar <miguel.aguilar@ridgerun.com>
  *
- * Intial Code: Sandeep Paulraj <s-paulraj@ti.com>
+ * Initial Code: Sandeep Paulraj <s-paulraj@ti.com>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/drivers/input/keyboard/lm8323.c b/drivers/input/keyboard/lm8323.c
index b732870ecc89..71f744a8e686 100644
--- a/drivers/input/keyboard/lm8323.c
+++ b/drivers/input/keyboard/lm8323.c
@@ -809,7 +809,7 @@ static int lm8323_suspend(struct device *dev)
 	struct lm8323_chip *lm = i2c_get_clientdata(client);
 	int i;
 
-	set_irq_wake(client->irq, 0);
+	irq_set_irq_wake(client->irq, 0);
 	disable_irq(client->irq);
 
 	mutex_lock(&lm->lock);
@@ -838,7 +838,7 @@ static int lm8323_resume(struct device *dev)
 			led_classdev_resume(&lm->pwm[i].cdev);
 
 	enable_irq(client->irq);
-	set_irq_wake(client->irq, 1);
+	irq_set_irq_wake(client->irq, 1);
 
 	return 0;
 }
diff --git a/drivers/input/keyboard/spear-keyboard.c b/drivers/input/keyboard/spear-keyboard.c
index bee03d64c453..d712dffd2157 100644
--- a/drivers/input/keyboard/spear-keyboard.c
+++ b/drivers/input/keyboard/spear-keyboard.c
@@ -69,7 +69,7 @@ static irqreturn_t spear_kbd_interrupt(int irq, void *dev_id)
 	u8 sts, val;
 
 	sts = readb(kbd->io_base + STATUS_REG);
-	if (sts & DATA_AVAIL)
+	if (!(sts & DATA_AVAIL))
 		return IRQ_NONE;
 
 	if (kbd->last_key != KEY_RESERVED) {
diff --git a/drivers/input/misc/adxl34x.c b/drivers/input/misc/adxl34x.c
index de5900d50788..144ddbdeb9b3 100644
--- a/drivers/input/misc/adxl34x.c
+++ b/drivers/input/misc/adxl34x.c
@@ -716,7 +716,7 @@ struct adxl34x *adxl34x_probe(struct device *dev, int irq,
 	pdata = dev->platform_data;
 	if (!pdata) {
 		dev_dbg(dev,
-			"No platfrom data: Using default initialization\n");
+			"No platform data: Using default initialization\n");
 		pdata = &adxl34x_default_init;
 	}
 
diff --git a/drivers/input/misc/keyspan_remote.c b/drivers/input/misc/keyspan_remote.c
index a93c525475c6..fc62256c963f 100644
--- a/drivers/input/misc/keyspan_remote.c
+++ b/drivers/input/misc/keyspan_remote.c
@@ -312,7 +312,7 @@ static void keyspan_check_data(struct usb_keyspan *remote)
 			remote->data.tester = remote->data.tester >> 5;
 			remote->data.bits_left -= 5;
 		} else {
-			err("Bad message recieved, no stop bit found.\n");
+			err("Bad message received, no stop bit found.\n");
 		}
 
 		dev_dbg(&remote->udev->dev,
diff --git a/drivers/input/misc/uinput.c b/drivers/input/misc/uinput.c
index 364bdf43a381..736056897e50 100644
--- a/drivers/input/misc/uinput.c
+++ b/drivers/input/misc/uinput.c
@@ -302,10 +302,14 @@ static int uinput_validate_absbits(struct input_dev *dev)
 	int retval = 0;
 
 	for (cnt = 0; cnt < ABS_CNT; cnt++) {
+		int min, max;
 		if (!test_bit(cnt, dev->absbit))
 			continue;
 
-		if (input_abs_get_max(dev, cnt) <= input_abs_get_min(dev, cnt)) {
+		min = input_abs_get_min(dev, cnt);
+		max = input_abs_get_max(dev, cnt);
+
+		if ((min != 0 || max != 0) && max <= min) {
 			printk(KERN_DEBUG
 				"%s: invalid abs[%02x] min:%d max:%d\n",
 				UINPUT_NAME, cnt,
diff --git a/drivers/input/misc/wistron_btns.c b/drivers/input/misc/wistron_btns.c
index 12501de0c5cd..52b419348983 100644
--- a/drivers/input/misc/wistron_btns.c
+++ b/drivers/input/misc/wistron_btns.c
@@ -274,7 +274,7 @@ static struct key_entry keymap_fs_amilo_pro_v3505[] __initdata = {
 	{ KE_BLUETOOTH, 0x30 },                      /* Fn+F10 */
 	{ KE_KEY,       0x31, {KEY_MAIL} },          /* mail button */
 	{ KE_KEY,       0x36, {KEY_WWW} },           /* www button */
-	{ KE_WIFI,      0x78 },                      /* satelite dish button */
+	{ KE_WIFI,      0x78 },                      /* satellite dish button */
 	{ KE_END,       0 }
 };
 
diff --git a/drivers/input/mouse/bcm5974.c b/drivers/input/mouse/bcm5974.c
index 3aead91bacc8..3126983c004a 100644
--- a/drivers/input/mouse/bcm5974.c
+++ b/drivers/input/mouse/bcm5974.c
@@ -639,7 +639,7 @@ exit:
  * device, resulting in trackpad malfunction under certain
  * circumstances. To get around this problem, there is at least one
  * example that utilizes the USB_QUIRK_RESET_RESUME quirk in order to
- * recieve a reset_resume request rather than the normal resume.
+ * receive a reset_resume request rather than the normal resume.
  * Since the implementation of reset_resume is equal to mode switch
  * plus start_traffic, it seems easier to always do the switch when
  * starting traffic on the device.
diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c
index aa186cf6c514..e06e045bf907 100644
--- a/drivers/input/mouse/synaptics.c
+++ b/drivers/input/mouse/synaptics.c
@@ -836,8 +836,8 @@ static const struct dmi_system_id __initconst toshiba_dmi_table[] = {
 		},
 
 	},
-	{ }
 #endif
+	{ }
 };
 
 static bool broken_olpc_ec;
@@ -851,8 +851,8 @@ static const struct dmi_system_id __initconst olpc_dmi_table[] = {
 			DMI_MATCH(DMI_PRODUCT_NAME, "XO"),
 		},
 	},
-	{ }
 #endif
+	{ }
 };
 
 void __init synaptics_module_init(void)
diff --git a/drivers/input/mouse/synaptics_i2c.c b/drivers/input/mouse/synaptics_i2c.c
index f6aa26d305ed..cba3c84d2f21 100644
--- a/drivers/input/mouse/synaptics_i2c.c
+++ b/drivers/input/mouse/synaptics_i2c.c
@@ -462,7 +462,7 @@ static void synaptics_i2c_work_handler(struct work_struct *work)
 	 * While interrupt driven, there is no real need to poll the device.
 	 * But touchpads are very sensitive, so there could be errors
 	 * related to physical environment and the attention line isn't
-	 * neccesarily asserted. In such case we can lose the touchpad.
+	 * necessarily asserted. In such case we can lose the touchpad.
 	 * We poll the device once in THREAD_IRQ_SLEEP_SECS and
 	 * if error is detected, we try to reset and reconfigure the touchpad.
 	 */
diff --git a/drivers/input/mouse/vsxxxaa.c b/drivers/input/mouse/vsxxxaa.c
index bf2c0c80d6cc..eb9a3cfbeefa 100644
--- a/drivers/input/mouse/vsxxxaa.c
+++ b/drivers/input/mouse/vsxxxaa.c
@@ -334,7 +334,7 @@ static void vsxxxaa_handle_POR_packet(struct vsxxxaa *mouse)
 	 * M: manufacturer location code
 	 * R: revision code
 	 * E: Error code. If it's in the range of 0x00..0x1f, only some
-	 *    minor problem occured. Errors >= 0x20 are considered bad
+	 *    minor problem occurred. Errors >= 0x20 are considered bad
 	 *    and the device may not work properly...
 	 * D: <0010> == mouse, <0100> == tablet
 	 */
diff --git a/drivers/input/serio/ams_delta_serio.c b/drivers/input/serio/ams_delta_serio.c
index ebe955325677..4b2a42f9f0bb 100644
--- a/drivers/input/serio/ams_delta_serio.c
+++ b/drivers/input/serio/ams_delta_serio.c
@@ -149,7 +149,7 @@ static int __init ams_delta_serio_init(void)
 	 * at FIQ level, switch back from edge to simple interrupt handler
 	 * to avoid bad interaction.
 	 */
-	set_irq_handler(gpio_to_irq(AMS_DELTA_GPIO_PIN_KEYBRD_CLK),
+	irq_set_handler(gpio_to_irq(AMS_DELTA_GPIO_PIN_KEYBRD_CLK),
 			handle_simple_irq);
 
 	serio_register_port(ams_delta_serio);
diff --git a/drivers/input/serio/hp_sdc.c b/drivers/input/serio/hp_sdc.c
index 8c0b51c31424..42206205e4f5 100644
--- a/drivers/input/serio/hp_sdc.c
+++ b/drivers/input/serio/hp_sdc.c
@@ -955,7 +955,7 @@ static int __init hp_sdc_init_hppa(struct parisc_device *d)
 	INIT_DELAYED_WORK(&moduleloader_work, request_module_delayed);
 
 	ret = hp_sdc_init();
-	/* after successfull initialization give SDC some time to settle
+	/* after successful initialization give SDC some time to settle
 	 * and then load the hp_sdc_mlc upper layer driver */
 	if (!ret)
 		schedule_delayed_work(&moduleloader_work,
diff --git a/drivers/input/serio/i8042.c b/drivers/input/serio/i8042.c
index ac4c93689ab9..d37a48e099d0 100644
--- a/drivers/input/serio/i8042.c
+++ b/drivers/input/serio/i8042.c
@@ -869,15 +869,15 @@ static int i8042_controller_selftest(void)
 	do {
 
 		if (i8042_command(&param, I8042_CMD_CTL_TEST)) {
-			pr_err("i8042 controller self test timeout\n");
+			pr_err("i8042 controller selftest timeout\n");
 			return -ENODEV;
 		}
 
 		if (param == I8042_RET_CTL_TEST)
 			return 0;
 
-		pr_err("i8042 controller selftest failed. (%#x != %#x)\n",
-		       param, I8042_RET_CTL_TEST);
+		dbg("i8042 controller selftest: %#x != %#x\n",
+		    param, I8042_RET_CTL_TEST);
 		msleep(50);
 	} while (i++ < 5);
 
@@ -891,6 +891,7 @@ static int i8042_controller_selftest(void)
 	pr_info("giving up on controller selftest, continuing anyway...\n");
 	return 0;
 #else
+	pr_err("i8042 controller selftest failed\n");
 	return -EIO;
 #endif
 }
diff --git a/drivers/input/serio/rpckbd.c b/drivers/input/serio/rpckbd.c
index 9da6fbcaaa7e..7ec3c97dc1b9 100644
--- a/drivers/input/serio/rpckbd.c
+++ b/drivers/input/serio/rpckbd.c
@@ -90,7 +90,7 @@ static int rpckbd_open(struct serio *port)
 
 	if (request_irq(IRQ_KEYBOARDTX, rpckbd_tx, 0, "rpckbd", port) != 0) {
 		printk(KERN_ERR "rpckbd.c: Could not allocate keyboard transmit IRQ\n");
-		free_irq(IRQ_KEYBOARDRX, NULL);
+		free_irq(IRQ_KEYBOARDRX, port);
 		return -EBUSY;
 	}
 
diff --git a/drivers/input/serio/xilinx_ps2.c b/drivers/input/serio/xilinx_ps2.c
index 7540bafc95cf..80baa53da5b1 100644
--- a/drivers/input/serio/xilinx_ps2.c
+++ b/drivers/input/serio/xilinx_ps2.c
@@ -225,7 +225,7 @@ static void sxps2_close(struct serio *pserio)
 /**
  * xps2_of_probe - probe method for the PS/2 device.
  * @of_dev:	pointer to OF device structure
- * @match:	pointer to the stucture used for matching a device
+ * @match:	pointer to the structure used for matching a device
  *
  * This function probes the PS/2 device in the device tree.
  * It initializes the driver data structure and the hardware.
diff --git a/drivers/input/sparse-keymap.c b/drivers/input/sparse-keymap.c
index 337bf51bc984..fdb6a3976f94 100644
--- a/drivers/input/sparse-keymap.c
+++ b/drivers/input/sparse-keymap.c
@@ -208,6 +208,12 @@ int sparse_keymap_setup(struct input_dev *dev,
 		}
 	}
 
+	if (test_bit(EV_KEY, dev->evbit)) {
+		__set_bit(KEY_UNKNOWN, dev->keybit);
+		__set_bit(EV_MSC, dev->evbit);
+		__set_bit(MSC_SCAN, dev->mscbit);
+	}
+
 	dev->keycode = map;
 	dev->keycodemax = map_size;
 	dev->getkeycode = sparse_keymap_getkeycode;
@@ -268,6 +274,7 @@ void sparse_keymap_report_entry(struct input_dev *dev, const struct key_entry *k
 {
 	switch (ke->type) {
 	case KE_KEY:
+		input_event(dev, EV_MSC, MSC_SCAN, ke->code);
 		input_report_key(dev, ke->keycode, value);
 		input_sync(dev);
 		if (value && autorelease) {
@@ -305,12 +312,19 @@ bool sparse_keymap_report_event(struct input_dev *dev, unsigned int code,
 {
 	const struct key_entry *ke =
 		sparse_keymap_entry_from_scancode(dev, code);
+	struct key_entry unknown_ke;
 
 	if (ke) {
 		sparse_keymap_report_entry(dev, ke, value, autorelease);
 		return true;
 	}
 
+	/* Report an unknown key event as a debugging aid */
+	unknown_ke.type = KE_KEY;
+	unknown_ke.code = code;
+	unknown_ke.keycode = KEY_UNKNOWN;
+	sparse_keymap_report_entry(dev, &unknown_ke, value, true);
+
 	return false;
 }
 EXPORT_SYMBOL(sparse_keymap_report_event);
diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c
index 5597637cfd41..08ba5ad9c9be 100644
--- a/drivers/input/tablet/wacom_wac.c
+++ b/drivers/input/tablet/wacom_wac.c
@@ -16,6 +16,14 @@
 #include "wacom.h"
 #include <linux/input/mt.h>
 
+/* resolution for penabled devices */
+#define WACOM_PL_RES		20
+#define WACOM_PENPRTN_RES	40
+#define WACOM_VOLITO_RES	50
+#define WACOM_GRAPHIRE_RES	80
+#define WACOM_INTUOS_RES	100
+#define WACOM_INTUOS3_RES	200
+
 static int wacom_penpartner_irq(struct wacom_wac *wacom)
 {
 	unsigned char *data = wacom->data;
@@ -1055,6 +1063,19 @@ void wacom_setup_input_capabilities(struct input_dev *input_dev,
 	input_set_abs_params(input_dev, ABS_PRESSURE, 0, features->pressure_max,
 			     features->pressure_fuzz, 0);
 
+	if (features->device_type == BTN_TOOL_PEN) {
+		/* penabled devices have fixed resolution for each model */
+		input_abs_set_res(input_dev, ABS_X, features->x_resolution);
+		input_abs_set_res(input_dev, ABS_Y, features->y_resolution);
+	} else {
+		input_abs_set_res(input_dev, ABS_X,
+			wacom_calculate_touch_res(features->x_max,
+						features->x_phy));
+		input_abs_set_res(input_dev, ABS_Y,
+			wacom_calculate_touch_res(features->y_max,
+						features->y_phy));
+	}
+
 	__set_bit(ABS_MISC, input_dev->absbit);
 
 	switch (wacom_wac->features.type) {
@@ -1171,15 +1192,9 @@ void wacom_setup_input_capabilities(struct input_dev *input_dev,
 	case TABLETPC:
 		__clear_bit(ABS_MISC, input_dev->absbit);
 
-		if (features->device_type != BTN_TOOL_PEN) {
-			input_abs_set_res(input_dev, ABS_X,
-				wacom_calculate_touch_res(features->x_max,
-							features->x_phy));
-			input_abs_set_res(input_dev, ABS_Y,
-				wacom_calculate_touch_res(features->y_max,
-							features->y_phy));
+		if (features->device_type != BTN_TOOL_PEN)
 			break;  /* no need to process stylus stuff */
-		}
+
 		/* fall through */
 
 	case PL:
@@ -1216,12 +1231,6 @@ void wacom_setup_input_capabilities(struct input_dev *input_dev,
 			input_set_abs_params(input_dev, ABS_MT_PRESSURE,
 					     0, features->pressure_max,
 					     features->pressure_fuzz, 0);
-			input_abs_set_res(input_dev, ABS_X,
-				wacom_calculate_touch_res(features->x_max,
-							features->x_phy));
-			input_abs_set_res(input_dev, ABS_Y,
-				wacom_calculate_touch_res(features->y_max,
-							features->y_phy));
 		} else if (features->device_type == BTN_TOOL_PEN) {
 			__set_bit(BTN_TOOL_RUBBER, input_dev->keybit);
 			__set_bit(BTN_TOOL_PEN, input_dev->keybit);
@@ -1233,161 +1242,242 @@ void wacom_setup_input_capabilities(struct input_dev *input_dev,
 }
 
 static const struct wacom_features wacom_features_0x00 =
-	{ "Wacom Penpartner",     WACOM_PKGLEN_PENPRTN,    5040,  3780,  255,  0, PENPARTNER };
+	{ "Wacom Penpartner",     WACOM_PKGLEN_PENPRTN,    5040,  3780,  255,
+	  0, PENPARTNER, WACOM_PENPRTN_RES, WACOM_PENPRTN_RES };
 static const struct wacom_features wacom_features_0x10 =
-	{ "Wacom Graphire",       WACOM_PKGLEN_GRAPHIRE,  10206,  7422,  511, 63, GRAPHIRE };
+	{ "Wacom Graphire",       WACOM_PKGLEN_GRAPHIRE,  10206,  7422,  511,
+	  63, GRAPHIRE, WACOM_GRAPHIRE_RES, WACOM_GRAPHIRE_RES };
 static const struct wacom_features wacom_features_0x11 =
-	{ "Wacom Graphire2 4x5",  WACOM_PKGLEN_GRAPHIRE,  10206,  7422,  511, 63, GRAPHIRE };
+	{ "Wacom Graphire2 4x5",  WACOM_PKGLEN_GRAPHIRE,  10206,  7422,  511,
+	  63, GRAPHIRE, WACOM_GRAPHIRE_RES, WACOM_GRAPHIRE_RES };
 static const struct wacom_features wacom_features_0x12 =
-	{ "Wacom Graphire2 5x7",  WACOM_PKGLEN_GRAPHIRE,  13918, 10206,  511, 63, GRAPHIRE };
+	{ "Wacom Graphire2 5x7",  WACOM_PKGLEN_GRAPHIRE,  13918, 10206,  511,
+	  63, GRAPHIRE, WACOM_GRAPHIRE_RES, WACOM_GRAPHIRE_RES };
 static const struct wacom_features wacom_features_0x13 =
-	{ "Wacom Graphire3",      WACOM_PKGLEN_GRAPHIRE,  10208,  7424,  511, 63, GRAPHIRE };
+	{ "Wacom Graphire3",      WACOM_PKGLEN_GRAPHIRE,  10208,  7424,  511,
+	  63, GRAPHIRE, WACOM_GRAPHIRE_RES, WACOM_GRAPHIRE_RES };
 static const struct wacom_features wacom_features_0x14 =
-	{ "Wacom Graphire3 6x8",  WACOM_PKGLEN_GRAPHIRE,  16704, 12064,  511, 63, GRAPHIRE };
+	{ "Wacom Graphire3 6x8",  WACOM_PKGLEN_GRAPHIRE,  16704, 12064,  511,
+	  63, GRAPHIRE, WACOM_GRAPHIRE_RES, WACOM_GRAPHIRE_RES };
 static const struct wacom_features wacom_features_0x15 =
-	{ "Wacom Graphire4 4x5",  WACOM_PKGLEN_GRAPHIRE,  10208,  7424,  511, 63, WACOM_G4 };
+	{ "Wacom Graphire4 4x5",  WACOM_PKGLEN_GRAPHIRE,  10208,  7424,  511,
+	  63, WACOM_G4, WACOM_GRAPHIRE_RES, WACOM_GRAPHIRE_RES };
 static const struct wacom_features wacom_features_0x16 =
-	{ "Wacom Graphire4 6x8",  WACOM_PKGLEN_GRAPHIRE,  16704, 12064,  511, 63, WACOM_G4 };
+	{ "Wacom Graphire4 6x8",  WACOM_PKGLEN_GRAPHIRE,  16704, 12064,  511,
+	  63, WACOM_G4, WACOM_GRAPHIRE_RES, WACOM_GRAPHIRE_RES };
 static const struct wacom_features wacom_features_0x17 =
-	{ "Wacom BambooFun 4x5",  WACOM_PKGLEN_BBFUN,     14760,  9225,  511, 63, WACOM_MO };
+	{ "Wacom BambooFun 4x5",  WACOM_PKGLEN_BBFUN,     14760,  9225,  511,
+	  63, WACOM_MO, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
 static const struct wacom_features wacom_features_0x18 =
-	{ "Wacom BambooFun 6x8",  WACOM_PKGLEN_BBFUN,     21648, 13530,  511, 63, WACOM_MO };
+	{ "Wacom BambooFun 6x8",  WACOM_PKGLEN_BBFUN,     21648, 13530,  511,
+	  63, WACOM_MO, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
 static const struct wacom_features wacom_features_0x19 =
-	{ "Wacom Bamboo1 Medium", WACOM_PKGLEN_GRAPHIRE,  16704, 12064,  511, 63, GRAPHIRE };
+	{ "Wacom Bamboo1 Medium", WACOM_PKGLEN_GRAPHIRE,  16704, 12064,  511,
+	  63, GRAPHIRE, WACOM_GRAPHIRE_RES, WACOM_GRAPHIRE_RES };
 static const struct wacom_features wacom_features_0x60 =
-	{ "Wacom Volito",         WACOM_PKGLEN_GRAPHIRE,   5104,  3712,  511, 63, GRAPHIRE };
+	{ "Wacom Volito",         WACOM_PKGLEN_GRAPHIRE,   5104,  3712,  511,
+	  63, GRAPHIRE, WACOM_VOLITO_RES, WACOM_VOLITO_RES };
 static const struct wacom_features wacom_features_0x61 =
-	{ "Wacom PenStation2",    WACOM_PKGLEN_GRAPHIRE,   3250,  2320,  255, 63, GRAPHIRE };
+	{ "Wacom PenStation2",    WACOM_PKGLEN_GRAPHIRE,   3250,  2320,  255,
+	  63, GRAPHIRE, WACOM_VOLITO_RES, WACOM_VOLITO_RES };
 static const struct wacom_features wacom_features_0x62 =
-	{ "Wacom Volito2 4x5",    WACOM_PKGLEN_GRAPHIRE,   5104,  3712,  511, 63, GRAPHIRE };
+	{ "Wacom Volito2 4x5",    WACOM_PKGLEN_GRAPHIRE,   5104,  3712,  511,
+	  63, GRAPHIRE, WACOM_VOLITO_RES, WACOM_VOLITO_RES };
 static const struct wacom_features wacom_features_0x63 =
-	{ "Wacom Volito2 2x3",    WACOM_PKGLEN_GRAPHIRE,   3248,  2320,  511, 63, GRAPHIRE };
+	{ "Wacom Volito2 2x3",    WACOM_PKGLEN_GRAPHIRE,   3248,  2320,  511,
+	  63, GRAPHIRE, WACOM_VOLITO_RES, WACOM_VOLITO_RES };
 static const struct wacom_features wacom_features_0x64 =
-	{ "Wacom PenPartner2",    WACOM_PKGLEN_GRAPHIRE,   3250,  2320,  511, 63, GRAPHIRE };
+	{ "Wacom PenPartner2",    WACOM_PKGLEN_GRAPHIRE,   3250,  2320,  511,
+	  63, GRAPHIRE, WACOM_VOLITO_RES, WACOM_VOLITO_RES };
 static const struct wacom_features wacom_features_0x65 =
-	{ "Wacom Bamboo",         WACOM_PKGLEN_BBFUN,     14760,  9225,  511, 63, WACOM_MO };
+	{ "Wacom Bamboo",         WACOM_PKGLEN_BBFUN,     14760,  9225,  511,
+	  63, WACOM_MO, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
 static const struct wacom_features wacom_features_0x69 =
-	{ "Wacom Bamboo1",        WACOM_PKGLEN_GRAPHIRE,   5104,  3712,  511, 63, GRAPHIRE };
+	{ "Wacom Bamboo1",        WACOM_PKGLEN_GRAPHIRE,   5104,  3712,  511,
+	  63, GRAPHIRE, WACOM_PENPRTN_RES, WACOM_PENPRTN_RES };
 static const struct wacom_features wacom_features_0x20 =
-	{ "Wacom Intuos 4x5",     WACOM_PKGLEN_INTUOS,    12700, 10600, 1023, 31, INTUOS };
+	{ "Wacom Intuos 4x5",     WACOM_PKGLEN_INTUOS,    12700, 10600, 1023,
+	  31, INTUOS, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
 static const struct wacom_features wacom_features_0x21 =
-	{ "Wacom Intuos 6x8",     WACOM_PKGLEN_INTUOS,    20320, 16240, 1023, 31, INTUOS };
+	{ "Wacom Intuos 6x8",     WACOM_PKGLEN_INTUOS,    20320, 16240, 1023,
+	  31, INTUOS, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
 static const struct wacom_features wacom_features_0x22 =
-	{ "Wacom Intuos 9x12",    WACOM_PKGLEN_INTUOS,    30480, 24060, 1023, 31, INTUOS };
+	{ "Wacom Intuos 9x12",    WACOM_PKGLEN_INTUOS,    30480, 24060, 1023,
+	  31, INTUOS, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
 static const struct wacom_features wacom_features_0x23 =
-	{ "Wacom Intuos 12x12",   WACOM_PKGLEN_INTUOS,    30480, 31680, 1023, 31, INTUOS };
+	{ "Wacom Intuos 12x12",   WACOM_PKGLEN_INTUOS,    30480, 31680, 1023,
+	  31, INTUOS, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
 static const struct wacom_features wacom_features_0x24 =
-	{ "Wacom Intuos 12x18",   WACOM_PKGLEN_INTUOS,    45720, 31680, 1023, 31, INTUOS };
+	{ "Wacom Intuos 12x18",   WACOM_PKGLEN_INTUOS,    45720, 31680, 1023,
+	  31, INTUOS, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
 static const struct wacom_features wacom_features_0x30 =
-	{ "Wacom PL400",          WACOM_PKGLEN_GRAPHIRE,   5408,  4056,  255,  0, PL };
+	{ "Wacom PL400",          WACOM_PKGLEN_GRAPHIRE,   5408,  4056,  255,
+	  0, PL, WACOM_PL_RES, WACOM_PL_RES };
 static const struct wacom_features wacom_features_0x31 =
-	{ "Wacom PL500",          WACOM_PKGLEN_GRAPHIRE,   6144,  4608,  255,  0, PL };
+	{ "Wacom PL500",          WACOM_PKGLEN_GRAPHIRE,   6144,  4608,  255,
+	  0, PL, WACOM_PL_RES, WACOM_PL_RES };
 static const struct wacom_features wacom_features_0x32 =
-	{ "Wacom PL600",          WACOM_PKGLEN_GRAPHIRE,   6126,  4604,  255,  0, PL };
+	{ "Wacom PL600",          WACOM_PKGLEN_GRAPHIRE,   6126,  4604,  255,
+	  0, PL, WACOM_PL_RES, WACOM_PL_RES };
 static const struct wacom_features wacom_features_0x33 =
-	{ "Wacom PL600SX",        WACOM_PKGLEN_GRAPHIRE,   6260,  5016,  255,  0, PL };
+	{ "Wacom PL600SX",        WACOM_PKGLEN_GRAPHIRE,   6260,  5016,  255,
+	  0, PL, WACOM_PL_RES, WACOM_PL_RES };
 static const struct wacom_features wacom_features_0x34 =
-	{ "Wacom PL550",          WACOM_PKGLEN_GRAPHIRE,   6144,  4608,  511,  0, PL };
+	{ "Wacom PL550",          WACOM_PKGLEN_GRAPHIRE,   6144,  4608,  511,
+	  0, PL, WACOM_PL_RES, WACOM_PL_RES };
 static const struct wacom_features wacom_features_0x35 =
-	{ "Wacom PL800",          WACOM_PKGLEN_GRAPHIRE,   7220,  5780,  511,  0, PL };
+	{ "Wacom PL800",          WACOM_PKGLEN_GRAPHIRE,   7220,  5780,  511,
+	  0, PL, WACOM_PL_RES, WACOM_PL_RES };
 static const struct wacom_features wacom_features_0x37 =
-	{ "Wacom PL700",          WACOM_PKGLEN_GRAPHIRE,   6758,  5406,  511,  0, PL };
+	{ "Wacom PL700",          WACOM_PKGLEN_GRAPHIRE,   6758,  5406,  511,
+	  0, PL, WACOM_PL_RES, WACOM_PL_RES };
 static const struct wacom_features wacom_features_0x38 =
-	{ "Wacom PL510",          WACOM_PKGLEN_GRAPHIRE,   6282,  4762,  511,  0, PL };
+	{ "Wacom PL510",          WACOM_PKGLEN_GRAPHIRE,   6282,  4762,  511,
+	  0, PL, WACOM_PL_RES, WACOM_PL_RES };
 static const struct wacom_features wacom_features_0x39 =
-	{ "Wacom DTU710",         WACOM_PKGLEN_GRAPHIRE,  34080, 27660,  511,  0, PL };
+	{ "Wacom DTU710",         WACOM_PKGLEN_GRAPHIRE,  34080, 27660,  511,
+	  0, PL, WACOM_PL_RES, WACOM_PL_RES };
 static const struct wacom_features wacom_features_0xC4 =
-	{ "Wacom DTF521",         WACOM_PKGLEN_GRAPHIRE,   6282,  4762,  511,  0, PL };
+	{ "Wacom DTF521",         WACOM_PKGLEN_GRAPHIRE,   6282,  4762,  511,
+	  0, PL, WACOM_PL_RES, WACOM_PL_RES };
 static const struct wacom_features wacom_features_0xC0 =
-	{ "Wacom DTF720",         WACOM_PKGLEN_GRAPHIRE,   6858,  5506,  511,  0, PL };
+	{ "Wacom DTF720",         WACOM_PKGLEN_GRAPHIRE,   6858,  5506,  511,
+	  0, PL, WACOM_PL_RES, WACOM_PL_RES };
 static const struct wacom_features wacom_features_0xC2 =
-	{ "Wacom DTF720a",        WACOM_PKGLEN_GRAPHIRE,   6858,  5506,  511,  0, PL };
+	{ "Wacom DTF720a",        WACOM_PKGLEN_GRAPHIRE,   6858,  5506,  511,
+	  0, PL, WACOM_PL_RES, WACOM_PL_RES };
 static const struct wacom_features wacom_features_0x03 =
-	{ "Wacom Cintiq Partner", WACOM_PKGLEN_GRAPHIRE,  20480, 15360,  511,  0, PTU };
+	{ "Wacom Cintiq Partner", WACOM_PKGLEN_GRAPHIRE,  20480, 15360,  511,
+	  0, PTU, WACOM_PL_RES, WACOM_PL_RES };
 static const struct wacom_features wacom_features_0x41 =
-	{ "Wacom Intuos2 4x5",    WACOM_PKGLEN_INTUOS,    12700, 10600, 1023, 31, INTUOS };
+	{ "Wacom Intuos2 4x5",    WACOM_PKGLEN_INTUOS,    12700, 10600, 1023,
+	  31, INTUOS, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
 static const struct wacom_features wacom_features_0x42 =
-	{ "Wacom Intuos2 6x8",    WACOM_PKGLEN_INTUOS,    20320, 16240, 1023, 31, INTUOS };
+	{ "Wacom Intuos2 6x8",    WACOM_PKGLEN_INTUOS,    20320, 16240, 1023,
+	  31, INTUOS, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
 static const struct wacom_features wacom_features_0x43 =
-	{ "Wacom Intuos2 9x12",   WACOM_PKGLEN_INTUOS,    30480, 24060, 1023, 31, INTUOS };
+	{ "Wacom Intuos2 9x12",   WACOM_PKGLEN_INTUOS,    30480, 24060, 1023,
+	  31, INTUOS, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
 static const struct wacom_features wacom_features_0x44 =
-	{ "Wacom Intuos2 12x12",  WACOM_PKGLEN_INTUOS,    30480, 31680, 1023, 31, INTUOS };
+	{ "Wacom Intuos2 12x12",  WACOM_PKGLEN_INTUOS,    30480, 31680, 1023,
+	  31, INTUOS, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
 static const struct wacom_features wacom_features_0x45 =
-	{ "Wacom Intuos2 12x18",  WACOM_PKGLEN_INTUOS,    45720, 31680, 1023, 31, INTUOS };
+	{ "Wacom Intuos2 12x18",  WACOM_PKGLEN_INTUOS,    45720, 31680, 1023,
+	  31, INTUOS, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
 static const struct wacom_features wacom_features_0xB0 =
-	{ "Wacom Intuos3 4x5",    WACOM_PKGLEN_INTUOS,    25400, 20320, 1023, 63, INTUOS3S };
+	{ "Wacom Intuos3 4x5",    WACOM_PKGLEN_INTUOS,    25400, 20320, 1023,
+	  63, INTUOS3S, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES };
 static const struct wacom_features wacom_features_0xB1 =
-	{ "Wacom Intuos3 6x8",    WACOM_PKGLEN_INTUOS,    40640, 30480, 1023, 63, INTUOS3 };
+	{ "Wacom Intuos3 6x8",    WACOM_PKGLEN_INTUOS,    40640, 30480, 1023,
+	  63, INTUOS3, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES };
 static const struct wacom_features wacom_features_0xB2 =
-	{ "Wacom Intuos3 9x12",   WACOM_PKGLEN_INTUOS,    60960, 45720, 1023, 63, INTUOS3 };
+	{ "Wacom Intuos3 9x12",   WACOM_PKGLEN_INTUOS,    60960, 45720, 1023,
+	  63, INTUOS3, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES };
 static const struct wacom_features wacom_features_0xB3 =
-	{ "Wacom Intuos3 12x12",  WACOM_PKGLEN_INTUOS,    60960, 60960, 1023, 63, INTUOS3L };
+	{ "Wacom Intuos3 12x12",  WACOM_PKGLEN_INTUOS,    60960, 60960, 1023,
+	  63, INTUOS3L, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES };
 static const struct wacom_features wacom_features_0xB4 =
-	{ "Wacom Intuos3 12x19",  WACOM_PKGLEN_INTUOS,    97536, 60960, 1023, 63, INTUOS3L };
+	{ "Wacom Intuos3 12x19",  WACOM_PKGLEN_INTUOS,    97536, 60960, 1023,
+	  63, INTUOS3L, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES };
 static const struct wacom_features wacom_features_0xB5 =
-	{ "Wacom Intuos3 6x11",   WACOM_PKGLEN_INTUOS,    54204, 31750, 1023, 63, INTUOS3 };
+	{ "Wacom Intuos3 6x11",   WACOM_PKGLEN_INTUOS,    54204, 31750, 1023,
+	  63, INTUOS3, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES };
 static const struct wacom_features wacom_features_0xB7 =
-	{ "Wacom Intuos3 4x6",    WACOM_PKGLEN_INTUOS,    31496, 19685, 1023, 63, INTUOS3S };
+	{ "Wacom Intuos3 4x6",    WACOM_PKGLEN_INTUOS,    31496, 19685, 1023,
+	  63, INTUOS3S, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES };
 static const struct wacom_features wacom_features_0xB8 =
-	{ "Wacom Intuos4 4x6",    WACOM_PKGLEN_INTUOS,    31496, 19685, 2047, 63, INTUOS4S };
+	{ "Wacom Intuos4 4x6",    WACOM_PKGLEN_INTUOS,    31496, 19685, 2047,
+	  63, INTUOS4S, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES };
 static const struct wacom_features wacom_features_0xB9 =
-	{ "Wacom Intuos4 6x9",    WACOM_PKGLEN_INTUOS,    44704, 27940, 2047, 63, INTUOS4 };
+	{ "Wacom Intuos4 6x9",    WACOM_PKGLEN_INTUOS,    44704, 27940, 2047,
+	  63, INTUOS4, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES };
 static const struct wacom_features wacom_features_0xBA =
-	{ "Wacom Intuos4 8x13",   WACOM_PKGLEN_INTUOS,    65024, 40640, 2047, 63, INTUOS4L };
+	{ "Wacom Intuos4 8x13",   WACOM_PKGLEN_INTUOS,    65024, 40640, 2047,
+	  63, INTUOS4L, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES };
 static const struct wacom_features wacom_features_0xBB =
-	{ "Wacom Intuos4 12x19",  WACOM_PKGLEN_INTUOS,    97536, 60960, 2047, 63, INTUOS4L };
+	{ "Wacom Intuos4 12x19",  WACOM_PKGLEN_INTUOS,    97536, 60960, 2047,
+	  63, INTUOS4L, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES };
 static const struct wacom_features wacom_features_0xBC =
-	{ "Wacom Intuos4 WL",     WACOM_PKGLEN_INTUOS,    40840, 25400, 2047, 63, INTUOS4 };
+	{ "Wacom Intuos4 WL",     WACOM_PKGLEN_INTUOS,    40840, 25400, 2047,
+	  63, INTUOS4, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES };
 static const struct wacom_features wacom_features_0x3F =
-	{ "Wacom Cintiq 21UX",    WACOM_PKGLEN_INTUOS,    87200, 65600, 1023, 63, CINTIQ };
+	{ "Wacom Cintiq 21UX",    WACOM_PKGLEN_INTUOS,    87200, 65600, 1023,
+	  63, CINTIQ, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES };
 static const struct wacom_features wacom_features_0xC5 =
-	{ "Wacom Cintiq 20WSX",   WACOM_PKGLEN_INTUOS,    86680, 54180, 1023, 63, WACOM_BEE };
+	{ "Wacom Cintiq 20WSX",   WACOM_PKGLEN_INTUOS,    86680, 54180, 1023,
+	  63, WACOM_BEE, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES };
 static const struct wacom_features wacom_features_0xC6 =
-	{ "Wacom Cintiq 12WX",    WACOM_PKGLEN_INTUOS,    53020, 33440, 1023, 63, WACOM_BEE };
+	{ "Wacom Cintiq 12WX",    WACOM_PKGLEN_INTUOS,    53020, 33440, 1023,
+	  63, WACOM_BEE, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES };
 static const struct wacom_features wacom_features_0xC7 =
-	{ "Wacom DTU1931",        WACOM_PKGLEN_GRAPHIRE,  37832, 30305,  511,  0, PL };
+	{ "Wacom DTU1931",        WACOM_PKGLEN_GRAPHIRE,  37832, 30305,  511,
+	  0, PL, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
 static const struct wacom_features wacom_features_0xCE =
-	{ "Wacom DTU2231",        WACOM_PKGLEN_GRAPHIRE,  47864, 27011,  511,  0, DTU };
+	{ "Wacom DTU2231",        WACOM_PKGLEN_GRAPHIRE,  47864, 27011,  511,
+	  0, DTU, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
 static const struct wacom_features wacom_features_0xF0 =
-	{ "Wacom DTU1631",        WACOM_PKGLEN_GRAPHIRE,  34623, 19553,  511,  0, DTU };
+	{ "Wacom DTU1631",        WACOM_PKGLEN_GRAPHIRE,  34623, 19553,  511,
+	  0, DTU, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
 static const struct wacom_features wacom_features_0xCC =
-	{ "Wacom Cintiq 21UX2",   WACOM_PKGLEN_INTUOS,    87200, 65600, 2047, 63, WACOM_21UX2 };
+	{ "Wacom Cintiq 21UX2",   WACOM_PKGLEN_INTUOS,    87200, 65600, 2047,
+	  63, WACOM_21UX2, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES };
 static const struct wacom_features wacom_features_0x90 =
-	{ "Wacom ISDv4 90",       WACOM_PKGLEN_GRAPHIRE,  26202, 16325,  255,  0, TABLETPC };
+	{ "Wacom ISDv4 90",       WACOM_PKGLEN_GRAPHIRE,  26202, 16325,  255,
+	  0, TABLETPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
 static const struct wacom_features wacom_features_0x93 =
-	{ "Wacom ISDv4 93",       WACOM_PKGLEN_GRAPHIRE,  26202, 16325,  255,  0, TABLETPC };
+	{ "Wacom ISDv4 93",       WACOM_PKGLEN_GRAPHIRE,  26202, 16325,  255,
+	  0, TABLETPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
 static const struct wacom_features wacom_features_0x9A =
-	{ "Wacom ISDv4 9A",       WACOM_PKGLEN_GRAPHIRE,  26202, 16325,  255,  0, TABLETPC };
+	{ "Wacom ISDv4 9A",       WACOM_PKGLEN_GRAPHIRE,  26202, 16325,  255,
+	  0, TABLETPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
 static const struct wacom_features wacom_features_0x9F =
-	{ "Wacom ISDv4 9F",       WACOM_PKGLEN_GRAPHIRE,  26202, 16325,  255,  0, TABLETPC };
+	{ "Wacom ISDv4 9F",       WACOM_PKGLEN_GRAPHIRE,  26202, 16325,  255,
+	  0, TABLETPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
 static const struct wacom_features wacom_features_0xE2 =
-	{ "Wacom ISDv4 E2",       WACOM_PKGLEN_TPC2FG,    26202, 16325,  255,  0, TABLETPC2FG };
+	{ "Wacom ISDv4 E2",       WACOM_PKGLEN_TPC2FG,    26202, 16325,  255,
+	  0, TABLETPC2FG, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
 static const struct wacom_features wacom_features_0xE3 =
-	{ "Wacom ISDv4 E3",       WACOM_PKGLEN_TPC2FG,    26202, 16325,  255,  0, TABLETPC2FG };
+	{ "Wacom ISDv4 E3",       WACOM_PKGLEN_TPC2FG,    26202, 16325,  255,
+	  0, TABLETPC2FG, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+static const struct wacom_features wacom_features_0xE6 =
+	{ "Wacom ISDv4 E6",       WACOM_PKGLEN_TPC2FG,    27760, 15694,  255,
+	  0, TABLETPC2FG, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
 static const struct wacom_features wacom_features_0x47 =
-	{ "Wacom Intuos2 6x8",    WACOM_PKGLEN_INTUOS,    20320, 16240, 1023, 31, INTUOS };
-static struct wacom_features wacom_features_0xD0 =
-	{ "Wacom Bamboo 2FG",     WACOM_PKGLEN_BBFUN,     14720,  9200, 1023, 63, BAMBOO_PT };
-static struct wacom_features wacom_features_0xD1 =
-	{ "Wacom Bamboo 2FG 4x5", WACOM_PKGLEN_BBFUN,     14720,  9200, 1023, 63, BAMBOO_PT };
-static struct wacom_features wacom_features_0xD2 =
-	{ "Wacom Bamboo Craft",   WACOM_PKGLEN_BBFUN,     14720,  9200, 1023, 63, BAMBOO_PT };
-static struct wacom_features wacom_features_0xD3 =
-	{ "Wacom Bamboo 2FG 6x8", WACOM_PKGLEN_BBFUN,     21648, 13530, 1023, 63, BAMBOO_PT };
+	{ "Wacom Intuos2 6x8",    WACOM_PKGLEN_INTUOS,    20320, 16240, 1023,
+	  31, INTUOS, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+static const struct wacom_features wacom_features_0xD0 =
+	{ "Wacom Bamboo 2FG",     WACOM_PKGLEN_BBFUN,     14720,  9200, 1023,
+	  63, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+static const struct wacom_features wacom_features_0xD1 =
+	{ "Wacom Bamboo 2FG 4x5", WACOM_PKGLEN_BBFUN,     14720,  9200, 1023,
+	  63, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+static const struct wacom_features wacom_features_0xD2 =
+	{ "Wacom Bamboo Craft",   WACOM_PKGLEN_BBFUN,     14720,  9200, 1023,
+	  63, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+static const struct wacom_features wacom_features_0xD3 =
+	{ "Wacom Bamboo 2FG 6x8", WACOM_PKGLEN_BBFUN,     21648, 13530, 1023,
+	  63, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
 static const struct wacom_features wacom_features_0xD4 =
-	{ "Wacom Bamboo Pen",     WACOM_PKGLEN_BBFUN,     14720,  9200,  255, 63, BAMBOO_PT };
-static struct wacom_features wacom_features_0xD6 =
-	{ "Wacom BambooPT 2FG 4x5", WACOM_PKGLEN_BBFUN,   14720,  9200, 1023, 63, BAMBOO_PT };
-static struct wacom_features wacom_features_0xD7 =
-	{ "Wacom BambooPT 2FG Small", WACOM_PKGLEN_BBFUN, 14720,  9200, 1023, 63, BAMBOO_PT };
-static struct wacom_features wacom_features_0xD8 =
-	{ "Wacom Bamboo Comic 2FG", WACOM_PKGLEN_BBFUN,   21648, 13530, 1023, 63, BAMBOO_PT };
-static struct wacom_features wacom_features_0xDA =
-	{ "Wacom Bamboo 2FG 4x5 SE", WACOM_PKGLEN_BBFUN,  14720,  9200, 1023, 63, BAMBOO_PT };
+	{ "Wacom Bamboo Pen",     WACOM_PKGLEN_BBFUN,     14720,  9200,  255,
+	  63, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+static const struct wacom_features wacom_features_0xD6 =
+	{ "Wacom BambooPT 2FG 4x5", WACOM_PKGLEN_BBFUN,   14720,  9200, 1023,
+	  63, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+static const struct wacom_features wacom_features_0xD7 =
+	{ "Wacom BambooPT 2FG Small", WACOM_PKGLEN_BBFUN, 14720,  9200, 1023,
+	  63, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+static const struct wacom_features wacom_features_0xD8 =
+	{ "Wacom Bamboo Comic 2FG", WACOM_PKGLEN_BBFUN,   21648, 13530, 1023,
+	  63, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+static const struct wacom_features wacom_features_0xDA =
+	{ "Wacom Bamboo 2FG 4x5 SE", WACOM_PKGLEN_BBFUN,  14720,  9200, 1023,
+	  63, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
 static struct wacom_features wacom_features_0xDB =
-	{ "Wacom Bamboo 2FG 6x8 SE", WACOM_PKGLEN_BBFUN,  21648, 13530, 1023, 63, BAMBOO_PT };
+	{ "Wacom Bamboo 2FG 6x8 SE", WACOM_PKGLEN_BBFUN,  21648, 13530, 1023,
+	  63, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
 static const struct wacom_features wacom_features_0x6004 =
-	{ "ISD-V4",               WACOM_PKGLEN_GRAPHIRE,  12800, 8000, 255, 0, TABLETPC };
+	{ "ISD-V4",               WACOM_PKGLEN_GRAPHIRE,  12800,  8000,  255,
+	  0, TABLETPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
 
 #define USB_DEVICE_WACOM(prod)					\
 	USB_DEVICE(USB_VENDOR_ID_WACOM, prod),			\
@@ -1474,6 +1564,7 @@ const struct usb_device_id wacom_ids[] = {
 	{ USB_DEVICE_WACOM(0x9F) },
 	{ USB_DEVICE_WACOM(0xE2) },
 	{ USB_DEVICE_WACOM(0xE3) },
+	{ USB_DEVICE_WACOM(0xE6) },
 	{ USB_DEVICE_WACOM(0x47) },
 	{ USB_DEVICE_LENOVO(0x6004) },
 	{ }
diff --git a/drivers/input/tablet/wacom_wac.h b/drivers/input/tablet/wacom_wac.h
index 835f756b150c..53eb71b68330 100644
--- a/drivers/input/tablet/wacom_wac.h
+++ b/drivers/input/tablet/wacom_wac.h
@@ -74,6 +74,8 @@ struct wacom_features {
 	int pressure_max;
 	int distance_max;
 	int type;
+	int x_resolution;
+	int y_resolution;
 	int device_type;
 	int x_phy;
 	int y_phy;
diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig
index 112ec55f2939..434fd800cd24 100644
--- a/drivers/input/touchscreen/Kconfig
+++ b/drivers/input/touchscreen/Kconfig
@@ -641,7 +641,7 @@ config TOUCHSCREEN_TOUCHIT213
 
 config TOUCHSCREEN_TSC2005
         tristate "TSC2005 based touchscreens"
-        depends on SPI_MASTER
+        depends on SPI_MASTER && GENERIC_HARDIRQS
         help
           Say Y here if you have a TSC2005 based touchscreen.
 
diff --git a/drivers/input/touchscreen/h3600_ts_input.c b/drivers/input/touchscreen/h3600_ts_input.c
index b4d7f63deff1..efa06882de00 100644
--- a/drivers/input/touchscreen/h3600_ts_input.c
+++ b/drivers/input/touchscreen/h3600_ts_input.c
@@ -62,7 +62,7 @@ MODULE_LICENSE("GPL");
         Programmer has no control over these numbers.
         TODO there are holes - specifically  1,7,0x0a
 */
-#define VERSION_ID              0       /* Get Version (request/respose) */
+#define VERSION_ID              0       /* Get Version (request/response) */
 #define KEYBD_ID                2       /* Keyboard (event) */
 #define TOUCHS_ID               3       /* Touch Screen (event)*/
 #define EEPROM_READ_ID          4       /* (request/response) */
diff --git a/drivers/input/touchscreen/intel-mid-touch.c b/drivers/input/touchscreen/intel-mid-touch.c
index c0307b22d86f..66c96bfc5522 100644
--- a/drivers/input/touchscreen/intel-mid-touch.c
+++ b/drivers/input/touchscreen/intel-mid-touch.c
@@ -542,7 +542,7 @@ static int __devinit mrstouch_adc_init(struct mrstouch_dev *tsdev)
 	 * ADC power on, start, enable PENDET and set loop delay
 	 * ADC loop delay is set to 4.5 ms approximately
 	 * Loop delay more than this results in jitter in adc readings
-	 * Setting loop delay to 0 (continous loop) in MAXIM stops PENDET
+	 * Setting loop delay to 0 (continuous loop) in MAXIM stops PENDET
 	 * interrupt generation sometimes.
 	 */
 
diff --git a/drivers/input/touchscreen/mainstone-wm97xx.c b/drivers/input/touchscreen/mainstone-wm97xx.c
index b6b8b1c7ecea..3242e7076258 100644
--- a/drivers/input/touchscreen/mainstone-wm97xx.c
+++ b/drivers/input/touchscreen/mainstone-wm97xx.c
@@ -219,7 +219,7 @@ static int wm97xx_acc_startup(struct wm97xx *wm)
 		}
 
 		wm->pen_irq = gpio_to_irq(irq);
-		set_irq_type(wm->pen_irq, IRQ_TYPE_EDGE_BOTH);
+		irq_set_irq_type(wm->pen_irq, IRQ_TYPE_EDGE_BOTH);
 	} else /* pen irq not supported */
 		pen_int = 0;
 
diff --git a/drivers/input/touchscreen/tsc2005.c b/drivers/input/touchscreen/tsc2005.c
index 87420616efa4..cbf0ff322676 100644
--- a/drivers/input/touchscreen/tsc2005.c
+++ b/drivers/input/touchscreen/tsc2005.c
@@ -358,7 +358,7 @@ static void __tsc2005_enable(struct tsc2005 *ts)
 	if (ts->esd_timeout && ts->set_reset) {
 		ts->last_valid_interrupt = jiffies;
 		schedule_delayed_work(&ts->esd_work,
-				round_jiffies(jiffies +
+				round_jiffies_relative(
 					msecs_to_jiffies(ts->esd_timeout)));
 	}
 
@@ -477,7 +477,14 @@ static void tsc2005_esd_work(struct work_struct *work)
 	int error;
 	u16 r;
 
-	mutex_lock(&ts->mutex);
+	if (!mutex_trylock(&ts->mutex)) {
+		/*
+		 * If the mutex is taken, it means that disable or enable is in
+		 * progress. In that case just reschedule the work. If the work
+		 * is not needed, it will be canceled by disable.
+		 */
+		goto reschedule;
+	}
 
 	if (time_is_after_jiffies(ts->last_valid_interrupt +
 				  msecs_to_jiffies(ts->esd_timeout)))
@@ -510,11 +517,12 @@ static void tsc2005_esd_work(struct work_struct *work)
 	tsc2005_start_scan(ts);
 
 out:
+	mutex_unlock(&ts->mutex);
+reschedule:
 	/* re-arm the watchdog */
 	schedule_delayed_work(&ts->esd_work,
-			      round_jiffies(jiffies +
+			      round_jiffies_relative(
 					msecs_to_jiffies(ts->esd_timeout)));
-	mutex_unlock(&ts->mutex);
 }
 
 static int tsc2005_open(struct input_dev *input)
@@ -663,7 +671,7 @@ static int __devinit tsc2005_probe(struct spi_device *spi)
 		goto err_remove_sysfs;
 	}
 
-	set_irq_wake(spi->irq, 1);
+	irq_set_irq_wake(spi->irq, 1);
 	return 0;
 
 err_remove_sysfs:
diff --git a/drivers/input/touchscreen/ucb1400_ts.c b/drivers/input/touchscreen/ucb1400_ts.c
index 028a5363eea1..3b5b5df04dd6 100644
--- a/drivers/input/touchscreen/ucb1400_ts.c
+++ b/drivers/input/touchscreen/ucb1400_ts.c
@@ -6,7 +6,7 @@
  *  Copyright:	MontaVista Software, Inc.
  *
  * Spliting done by: Marek Vasut <marek.vasut@gmail.com>
- * If something doesnt work and it worked before spliting, e-mail me,
+ * If something doesn't work and it worked before spliting, e-mail me,
  * dont bother Nicolas please ;-)
  *
  * This program is free software; you can redistribute it and/or modify
diff --git a/drivers/input/touchscreen/wm9705.c b/drivers/input/touchscreen/wm9705.c
index 6b5be742c27d..98e61175d3f5 100644
--- a/drivers/input/touchscreen/wm9705.c
+++ b/drivers/input/touchscreen/wm9705.c
@@ -306,7 +306,7 @@ static int wm9705_acc_enable(struct wm97xx *wm, int enable)
 	dig2 = wm->dig[2];
 
 	if (enable) {
-		/* continous mode */
+		/* continuous mode */
 		if (wm->mach_ops->acc_startup &&
 		    (ret = wm->mach_ops->acc_startup(wm)) < 0)
 			return ret;
diff --git a/drivers/input/touchscreen/wm9712.c b/drivers/input/touchscreen/wm9712.c
index 7490b05c3566..2bc2fb801009 100644
--- a/drivers/input/touchscreen/wm9712.c
+++ b/drivers/input/touchscreen/wm9712.c
@@ -419,7 +419,7 @@ static int wm9712_acc_enable(struct wm97xx *wm, int enable)
 	dig2 = wm->dig[2];
 
 	if (enable) {
-		/* continous mode */
+		/* continuous mode */
 		if (wm->mach_ops->acc_startup) {
 			ret = wm->mach_ops->acc_startup(wm);
 			if (ret < 0)
diff --git a/drivers/input/touchscreen/wm9713.c b/drivers/input/touchscreen/wm9713.c
index 238b5132712e..73ec99568f12 100644
--- a/drivers/input/touchscreen/wm9713.c
+++ b/drivers/input/touchscreen/wm9713.c
@@ -431,7 +431,7 @@ static int wm9713_acc_enable(struct wm97xx *wm, int enable)
 	dig3 = wm->dig[2];
 
 	if (enable) {
-		/* continous mode */
+		/* continuous mode */
 		if (wm->mach_ops->acc_startup &&
 			(ret = wm->mach_ops->acc_startup(wm)) < 0)
 			return ret;
diff --git a/drivers/input/touchscreen/wm97xx-core.c b/drivers/input/touchscreen/wm97xx-core.c
index 6b75c9f660ae..5dbe73af2f8f 100644
--- a/drivers/input/touchscreen/wm97xx-core.c
+++ b/drivers/input/touchscreen/wm97xx-core.c
@@ -335,7 +335,7 @@ static void wm97xx_pen_irq_worker(struct work_struct *work)
 	 */
 	if (!wm->mach_ops->acc_enabled || wm->mach_ops->acc_pen_down) {
 		if (wm->pen_is_down && !pen_was_down) {
-			/* Data is not availiable immediately on pen down */
+			/* Data is not available immediately on pen down */
 			queue_delayed_work(wm->ts_workq, &wm->ts_reader, 1);
 		}
 
@@ -354,7 +354,7 @@ static void wm97xx_pen_irq_worker(struct work_struct *work)
  * Codec PENDOWN irq handler
  *
  * We have to disable the codec interrupt in the handler because it
- * can take upto 1ms to clear the interrupt source. We schedule a task
+ * can take up to 1ms to clear the interrupt source. We schedule a task
  * in a work queue to do the actual interaction with the chip.  The
  * interrupt is then enabled again in the slow handler when the source
  * has been cleared.
diff --git a/drivers/input/touchscreen/zylonite-wm97xx.c b/drivers/input/touchscreen/zylonite-wm97xx.c
index 048849867643..5b0f15ec874a 100644
--- a/drivers/input/touchscreen/zylonite-wm97xx.c
+++ b/drivers/input/touchscreen/zylonite-wm97xx.c
@@ -193,7 +193,7 @@ static int zylonite_wm97xx_probe(struct platform_device *pdev)
 		gpio_touch_irq = mfp_to_gpio(MFP_PIN_GPIO26);
 
 	wm->pen_irq = IRQ_GPIO(gpio_touch_irq);
-	set_irq_type(IRQ_GPIO(gpio_touch_irq), IRQ_TYPE_EDGE_BOTH);
+	irq_set_irq_type(IRQ_GPIO(gpio_touch_irq), IRQ_TYPE_EDGE_BOTH);
 
 	wm97xx_config_gpio(wm, WM97XX_GPIO_13, WM97XX_GPIO_IN,
 			   WM97XX_GPIO_POL_HIGH,
diff --git a/drivers/isdn/hardware/eicon/divacapi.h b/drivers/isdn/hardware/eicon/divacapi.h
index 9f5b68037a26..e330da0c5fc0 100644
--- a/drivers/isdn/hardware/eicon/divacapi.h
+++ b/drivers/isdn/hardware/eicon/divacapi.h
@@ -673,7 +673,7 @@ struct async_s {
 
 
 /*------------------------------------------------------------------*/
-/* auxilliary states for supplementary services                     */
+/* auxiliary states for supplementary services                     */
 /*------------------------------------------------------------------*/
 
 #define IDLE                0
diff --git a/drivers/isdn/hardware/eicon/io.h b/drivers/isdn/hardware/eicon/io.h
index 0c6c650d76bb..a6f175596364 100644
--- a/drivers/isdn/hardware/eicon/io.h
+++ b/drivers/isdn/hardware/eicon/io.h
@@ -60,7 +60,7 @@ typedef struct _diva_xdi_capi_cfg {
   -------------------------------------------------------------------------- */
 struct _ISDN_ADAPTER {
  void             (* DIRequest)(PISDN_ADAPTER, ENTITY *) ;
- int                 State ; /* from NT4 1.srv, a good idea, but  a poor achievment */
+ int                 State ; /* from NT4 1.srv, a good idea, but  a poor achievement */
  int                 Initialized ;
  int         RegisteredWithDidd ;
  int                 Unavailable ;  /* callback function possible? */
diff --git a/drivers/isdn/hardware/eicon/message.c b/drivers/isdn/hardware/eicon/message.c
index 341ef17c22ac..8c5c563c4f12 100644
--- a/drivers/isdn/hardware/eicon/message.c
+++ b/drivers/isdn/hardware/eicon/message.c
@@ -2639,7 +2639,7 @@ static byte connect_b3_req(dword Id, word Number, DIVA_CAPI_ADAPTER *a,
     }
     else
     {
-      /* local reply if assign unsuccessfull
+      /* local reply if assign unsuccessful
          or B3 protocol allows only one layer 3 connection
            and already connected
              or B2 protocol not any LAPD
@@ -8189,7 +8189,7 @@ static word add_b23(PLCI *plci, API_PARSE *bp)
       dlc[ 0] = 15;
       if(b2_config->length >= 8) { /* PIAFS control abilities */
         dlc[ 7] = 10; 
-        dlc[16] = 2; /* Length of PIAFS extention */
+        dlc[16] = 2; /* Length of PIAFS extension */
         dlc[17] = PIAFS_UDATA_ABILITIES; /* control (UDATA) ability */
         dlc[18] = b2_config_parms[4].info[0]; /* value */
         dlc[ 0] = 18;
diff --git a/drivers/isdn/hardware/eicon/pc.h b/drivers/isdn/hardware/eicon/pc.h
index 1c6945768a35..bf6b01812400 100644
--- a/drivers/isdn/hardware/eicon/pc.h
+++ b/drivers/isdn/hardware/eicon/pc.h
@@ -701,7 +701,7 @@ Byte | 8 7 6 5 4 3 2 1
 #define PROTCAP_FREE12    0x1000  /* not used                            */
 #define PROTCAP_FREE13    0x2000  /* not used                            */
 #define PROTCAP_FREE14    0x4000  /* not used                            */
-#define PROTCAP_EXTENSION 0x8000  /* used for future extentions          */
+#define PROTCAP_EXTENSION 0x8000  /* used for future extensions          */
 /* -----------------------------------------------------------* */
 /* Onhook data transmission ETS30065901 */
 /* Message Type */
diff --git a/drivers/isdn/hardware/eicon/um_idi.c b/drivers/isdn/hardware/eicon/um_idi.c
index 6563db998d06..ac0bdd1f23fa 100644
--- a/drivers/isdn/hardware/eicon/um_idi.c
+++ b/drivers/isdn/hardware/eicon/um_idi.c
@@ -363,7 +363,7 @@ int diva_um_idi_read(void *entity,
 
 		if ((ret = (*cp_fn) (os_handle, dst, data, length)) >= 0) {
 			/*
-			   Acknowledge only if read was successfull
+			   Acknowledge only if read was successful
 			 */
 			diva_data_q_ack_segment4read(q);
 		}
diff --git a/drivers/isdn/hardware/mISDN/hfcmulti.c b/drivers/isdn/hardware/mISDN/hfcmulti.c
index 4e3780d78ac7..f6f3c87cc7c2 100644
--- a/drivers/isdn/hardware/mISDN/hfcmulti.c
+++ b/drivers/isdn/hardware/mISDN/hfcmulti.c
@@ -118,7 +118,7 @@
  *	-> See hfc_multi.h for HFC_IO_MODE_* values
  *	By default, the IO mode is pci memory IO (MEMIO).
  *	Some cards require specific IO mode, so it cannot be changed.
- *	It may be usefull to set IO mode to register io (REGIO) to solve
+ *	It may be useful to set IO mode to register io (REGIO) to solve
  *	PCI bridge problems.
  *	If unsure, don't give this parameter.
  *
@@ -903,7 +903,7 @@ vpm_echocan_off(struct hfc_multi *hc, int ch)
 /*
  * Speech Design resync feature
  * NOTE: This is called sometimes outside interrupt handler.
- * We must lock irqsave, so no other interrupt (other card) will occurr!
+ * We must lock irqsave, so no other interrupt (other card) will occur!
  * Also multiple interrupts may nest, so must lock each access (lists, card)!
  */
 static inline void
diff --git a/drivers/isdn/hardware/mISDN/hfcpci.c b/drivers/isdn/hardware/mISDN/hfcpci.c
index 15d323b8be60..4343abac0b13 100644
--- a/drivers/isdn/hardware/mISDN/hfcpci.c
+++ b/drivers/isdn/hardware/mISDN/hfcpci.c
@@ -272,7 +272,7 @@ reset_hfcpci(struct hfc_pci *hc)
 	 * D- and monitor/CI channel are not enabled
 	 * STIO1 is used as output for data, B1+B2 from ST->IOM+HFC
 	 * STIO2 is used as data input, B1+B2 from IOM->ST
-	 * ST B-channel send disabled -> continous 1s
+	 * ST B-channel send disabled -> continuous 1s
 	 * The IOM slots are always enabled
 	 */
 	if (test_bit(HFC_CFG_PCM, &hc->cfg)) {
diff --git a/drivers/isdn/hisax/hfc_pci.c b/drivers/isdn/hisax/hfc_pci.c
index 3147020d188b..0cb0546ead88 100644
--- a/drivers/isdn/hisax/hfc_pci.c
+++ b/drivers/isdn/hisax/hfc_pci.c
@@ -146,7 +146,7 @@ reset_hfcpci(struct IsdnCardState *cs)
 	/* D- and monitor/CI channel are not enabled */
 	/* STIO1 is used as output for data, B1+B2 from ST->IOM+HFC */
 	/* STIO2 is used as data input, B1+B2 from IOM->ST */
-	/* ST B-channel send disabled -> continous 1s */
+	/* ST B-channel send disabled -> continuous 1s */
 	/* The IOM slots are always enabled */
 	cs->hw.hfcpci.conn = 0x36;	/* set data flow directions */
 	Write_hfc(cs, HFCPCI_CONNECT, cs->hw.hfcpci.conn);
diff --git a/drivers/isdn/hisax/hfc_sx.c b/drivers/isdn/hisax/hfc_sx.c
index 1235b7131ae1..156d7c63d944 100644
--- a/drivers/isdn/hisax/hfc_sx.c
+++ b/drivers/isdn/hisax/hfc_sx.c
@@ -399,7 +399,7 @@ reset_hfcsx(struct IsdnCardState *cs)
 	/* D- and monitor/CI channel are not enabled */
 	/* STIO1 is used as output for data, B1+B2 from ST->IOM+HFC */
 	/* STIO2 is used as data input, B1+B2 from IOM->ST */
-	/* ST B-channel send disabled -> continous 1s */
+	/* ST B-channel send disabled -> continuous 1s */
 	/* The IOM slots are always enabled */
 	cs->hw.hfcsx.conn = 0x36;	/* set data flow directions */
 	Write_hfc(cs, HFCSX_CONNECT, cs->hw.hfcsx.conn);
diff --git a/drivers/isdn/hisax/hfc_usb.h b/drivers/isdn/hisax/hfc_usb.h
index e79f56568d30..2f581c0b4693 100644
--- a/drivers/isdn/hisax/hfc_usb.h
+++ b/drivers/isdn/hisax/hfc_usb.h
@@ -126,7 +126,7 @@ static struct hfcusb_symbolic_list urb_errlist[] = {
 
 
 /*
- * device dependant information to support different
+ * device dependent information to support different
  * ISDN Ta's using the HFC-S USB chip
  */
 
diff --git a/drivers/isdn/hisax/l3dss1.c b/drivers/isdn/hisax/l3dss1.c
index cc6ee2d39880..8e2fd02ecce0 100644
--- a/drivers/isdn/hisax/l3dss1.c
+++ b/drivers/isdn/hisax/l3dss1.c
@@ -1595,7 +1595,7 @@ l3dss1_setup(struct l3_process *pc, u_char pr, void *arg)
 	 * Bearer Capabilities
 	 */
 	p = skb->data;
-	/* only the first occurence 'll be detected ! */
+	/* only the first occurrence 'll be detected ! */
 	if ((p = findie(p, skb->len, 0x04, 0))) {
 		if ((p[1] < 2) || (p[1] > 11))
 			err = 1;
@@ -2161,7 +2161,7 @@ static void l3dss1_redir_req_early(struct l3_process *pc, u_char pr, void *arg)
 
 /***********************************************/
 /* handle special commands for this protocol.  */
-/* Examples are call independant services like */
+/* Examples are call independent services like */
 /* remote operations with dummy  callref.      */
 /***********************************************/
 static int l3dss1_cmd_global(struct PStack *st, isdn_ctrl *ic)
diff --git a/drivers/isdn/hisax/l3ni1.c b/drivers/isdn/hisax/l3ni1.c
index f9584491fe8e..7b229c0ce115 100644
--- a/drivers/isdn/hisax/l3ni1.c
+++ b/drivers/isdn/hisax/l3ni1.c
@@ -1449,7 +1449,7 @@ l3ni1_setup(struct l3_process *pc, u_char pr, void *arg)
 	 * Bearer Capabilities
 	 */
 	p = skb->data;
-	/* only the first occurence 'll be detected ! */
+	/* only the first occurrence 'll be detected ! */
 	if ((p = findie(p, skb->len, 0x04, 0))) {
 		if ((p[1] < 2) || (p[1] > 11))
 			err = 1;
@@ -2017,7 +2017,7 @@ static void l3ni1_redir_req_early(struct l3_process *pc, u_char pr, void *arg)
 
 /***********************************************/
 /* handle special commands for this protocol.  */
-/* Examples are call independant services like */
+/* Examples are call independent services like */
 /* remote operations with dummy  callref.      */
 /***********************************************/
 static int l3ni1_cmd_global(struct PStack *st, isdn_ctrl *ic)
diff --git a/drivers/isdn/hisax/nj_s.c b/drivers/isdn/hisax/nj_s.c
index 2344e7b33448..a1b89524b505 100644
--- a/drivers/isdn/hisax/nj_s.c
+++ b/drivers/isdn/hisax/nj_s.c
@@ -167,7 +167,7 @@ static int __devinit njs_pci_probe(struct pci_dev *dev_netjet,
 		return(0);
 	}
 	/* the TJ300 and TJ320 must be detected, the IRQ handling is different
-	 * unfortunatly the chips use the same device ID, but the TJ320 has
+	 * unfortunately the chips use the same device ID, but the TJ320 has
 	 * the bit20 in status PCI cfg register set
 	 */
 	pci_read_config_dword(dev_netjet, 0x04, &cfg);
diff --git a/drivers/isdn/hisax/st5481_b.c b/drivers/isdn/hisax/st5481_b.c
index e56e5af889b6..ed4bc564dc63 100644
--- a/drivers/isdn/hisax/st5481_b.c
+++ b/drivers/isdn/hisax/st5481_b.c
@@ -124,7 +124,7 @@ static void usb_b_out(struct st5481_bcs *bcs,int buf_nr)
 }
 
 /*
- * Start transfering (flags or data) on the B channel, since
+ * Start transferring (flags or data) on the B channel, since
  * FIFO counters has been set to a non-zero value.
  */
 static void st5481B_start_xfer(void *context)
diff --git a/drivers/isdn/hisax/st5481_usb.c b/drivers/isdn/hisax/st5481_usb.c
index 10d41c5d73ed..159e8fa00fd6 100644
--- a/drivers/isdn/hisax/st5481_usb.c
+++ b/drivers/isdn/hisax/st5481_usb.c
@@ -470,7 +470,7 @@ void st5481_release_isocpipes(struct urb* urb[2])
 
 /*
  * Decode frames received on the B/D channel.
- * Note that this function will be called continously
+ * Note that this function will be called continuously
  * with 64Kbit/s / 16Kbit/s of data and hence it will be 
  * called 50 times per second with 20 ISOC descriptors. 
  * Called at interrupt.
diff --git a/drivers/isdn/hisax/teles_cs.c b/drivers/isdn/hisax/teles_cs.c
index 282a4467ef19..aa25e183bf79 100644
--- a/drivers/isdn/hisax/teles_cs.c
+++ b/drivers/isdn/hisax/teles_cs.c
@@ -9,7 +9,7 @@
     Also inspired by ELSA PCMCIA driver 
     by Klaus Lichtenwalder <Lichtenwalder@ACM.org>
     
-    Extentions to new hisax_pcmcia by Karsten Keil
+    Extensions to new hisax_pcmcia by Karsten Keil
 
     minor changes to be compatible with kernel 2.4.x
     by Jan.Schubert@GMX.li
diff --git a/drivers/isdn/hysdn/hysdn_sched.c b/drivers/isdn/hysdn/hysdn_sched.c
index 81db4a190d41..3674d30d6a03 100644
--- a/drivers/isdn/hysdn/hysdn_sched.c
+++ b/drivers/isdn/hysdn/hysdn_sched.c
@@ -143,7 +143,7 @@ hysdn_sched_tx(hysdn_card *card, unsigned char *buf,
 /* send one config line to the card and return 0 if successful, otherwise a */
 /* negative error code.                                                      */
 /* The function works with timeouts perhaps not giving the greatest speed    */
-/* sending the line, but this should be meaningless beacuse only some lines  */
+/* sending the line, but this should be meaningless because only some lines  */
 /* are to be sent and this happens very seldom.                              */
 /*****************************************************************************/
 int
diff --git a/drivers/isdn/i4l/isdn_net.c b/drivers/isdn/i4l/isdn_net.c
index afeede7ee295..2a7d17c19489 100644
--- a/drivers/isdn/i4l/isdn_net.c
+++ b/drivers/isdn/i4l/isdn_net.c
@@ -1530,7 +1530,7 @@ isdn_net_ciscohdlck_slarp_send_keepalive(unsigned long data)
 		printk (KERN_WARNING
 				"UPDOWN: Line protocol on Interface %s,"
 				" changed state to down\n", lp->netdev->dev->name);
-		/* should stop routing higher-level data accross */
+		/* should stop routing higher-level data across */
 	} else if ((!lp->cisco_line_state) &&
 		(myseq_diff >= 0) && (myseq_diff <= 2)) {
 		/* line down -> up */
@@ -1538,7 +1538,7 @@ isdn_net_ciscohdlck_slarp_send_keepalive(unsigned long data)
 		printk (KERN_WARNING
 				"UPDOWN: Line protocol on Interface %s,"
 				" changed state to up\n", lp->netdev->dev->name);
-		/* restart routing higher-level data accross */
+		/* restart routing higher-level data across */
 	}
 
 	if (lp->cisco_debserint)
diff --git a/drivers/isdn/i4l/isdn_ppp.c b/drivers/isdn/i4l/isdn_ppp.c
index 9e8162c80bb0..1b002b0002a4 100644
--- a/drivers/isdn/i4l/isdn_ppp.c
+++ b/drivers/isdn/i4l/isdn_ppp.c
@@ -1514,7 +1514,7 @@ int isdn_ppp_autodial_filter(struct sk_buff *skb, isdn_net_local *lp)
 #define MP_LONGSEQ_MAXBIT	((MP_LONGSEQ_MASK+1)>>1)
 #define MP_SHORTSEQ_MAXBIT	((MP_SHORTSEQ_MASK+1)>>1)
 
-/* sequence-wrap safe comparisions (for long sequence)*/ 
+/* sequence-wrap safe comparisons (for long sequence)*/
 #define MP_LT(a,b)	((a-b)&MP_LONGSEQ_MAXBIT)
 #define MP_LE(a,b) 	!((b-a)&MP_LONGSEQ_MAXBIT)
 #define MP_GT(a,b) 	((b-a)&MP_LONGSEQ_MAXBIT)
@@ -1746,7 +1746,7 @@ static void isdn_ppp_mp_receive(isdn_net_dev * net_dev, isdn_net_local * lp,
 		 * then next fragment should be the start of new reassembly
 		 * if sequence is contiguous, but we haven't reassembled yet,
 		 * keep going.
-		 * if sequence is not contiguous, either clear everyting
+		 * if sequence is not contiguous, either clear everything
 		 * below low watermark and set start to the next frag or
 		 * clear start ptr.
 		 */ 
diff --git a/drivers/isdn/i4l/isdn_tty.c b/drivers/isdn/i4l/isdn_tty.c
index 3d88f15aa218..607d846ae063 100644
--- a/drivers/isdn/i4l/isdn_tty.c
+++ b/drivers/isdn/i4l/isdn_tty.c
@@ -792,7 +792,7 @@ isdn_tty_suspend(char *id, modem_info * info, atemu * m)
 }
 
 /* isdn_tty_resume() tries to resume a suspended call
- * setup of the lower levels before that. unfortunatly here is no
+ * setup of the lower levels before that. unfortunately here is no
  * checking for compatibility of used protocols implemented by Q931
  * It does the same things like isdn_tty_dial, the last command
  * is different, may be we can merge it.
diff --git a/drivers/isdn/isdnloop/isdnloop.c b/drivers/isdn/isdnloop/isdnloop.c
index b8a1098b66ed..d497db0a26d0 100644
--- a/drivers/isdn/isdnloop/isdnloop.c
+++ b/drivers/isdn/isdnloop/isdnloop.c
@@ -954,7 +954,7 @@ isdnloop_parse_cmd(isdnloop_card * card)
 /*
  * Put command-strings into the of the 'card'. In reality, execute them
  * right in place by calling isdnloop_parse_cmd(). Also copy every
- * command to the read message ringbuffer, preceeding it with a '>'.
+ * command to the read message ringbuffer, preceding it with a '>'.
  * These mesagges can be read at /dev/isdnctrl.
  *
  * Parameter:
diff --git a/drivers/isdn/mISDN/dsp.h b/drivers/isdn/mISDN/dsp.h
index 18af86879c05..8549431430f0 100644
--- a/drivers/isdn/mISDN/dsp.h
+++ b/drivers/isdn/mISDN/dsp.h
@@ -21,7 +21,7 @@
 /* options may be:
  *
  * bit 0 = use ulaw instead of alaw
- * bit 1 = enable hfc hardware accelleration for all channels
+ * bit 1 = enable hfc hardware acceleration for all channels
  *
  */
 #define DSP_OPT_ULAW		(1<<0)
diff --git a/drivers/isdn/mISDN/dsp_cmx.c b/drivers/isdn/mISDN/dsp_cmx.c
index 309bacf1fadc..4d395dea32f3 100644
--- a/drivers/isdn/mISDN/dsp_cmx.c
+++ b/drivers/isdn/mISDN/dsp_cmx.c
@@ -1513,7 +1513,7 @@ dsp_cmx_send_member(struct dsp *dsp, int len, s32 *c, int members)
 	/* -> if echo is NOT enabled */
 	if (!dsp->echo.software) {
 		/*
-		 * -> substract rx-data from conf-data,
+		 * -> subtract rx-data from conf-data,
 		 * if tx-data is available, mix
 		 */
 		while (r != rr && t != tt) {
@@ -1572,7 +1572,7 @@ dsp_cmx_send_member(struct dsp *dsp, int len, s32 *c, int members)
 send_packet:
 	/*
 	 * send tx-data if enabled - don't filter,
-	 * becuase we want what we send, not what we filtered
+	 * because we want what we send, not what we filtered
 	 */
 	if (dsp->tx_data) {
 		if (tx_data_only) {
diff --git a/drivers/isdn/mISDN/dsp_core.c b/drivers/isdn/mISDN/dsp_core.c
index 6f5b54864283..2877291a9ed8 100644
--- a/drivers/isdn/mISDN/dsp_core.c
+++ b/drivers/isdn/mISDN/dsp_core.c
@@ -115,7 +115,7 @@
  *
  * The CMX has special functions for conferences with one, two and more
  * members. It will allow different types of data flow. Receive and transmit
- * data to/form upper layer may be swithed on/off individually without loosing
+ * data to/form upper layer may be swithed on/off individually without losing
  * features of CMX, Tones and DTMF.
  *
  * Echo Cancellation: Sometimes we like to cancel echo from the interface.
@@ -127,9 +127,9 @@
  *
  * If all used features can be realized in hardware, and if transmit and/or
  * receive data ist disabled, the card may not send/receive any data at all.
- * Not receiving is usefull if only announcements are played. Not sending is
- * usefull if an answering machine records audio. Not sending and receiving is
- * usefull during most states of the call. If supported by hardware, tones
+ * Not receiving is useful if only announcements are played. Not sending is
+ * useful if an answering machine records audio. Not sending and receiving is
+ * useful during most states of the call. If supported by hardware, tones
  * will be played without cpu load. Small PBXs and NT-Mode applications will
  * not need expensive hardware when processing calls.
  *
diff --git a/drivers/isdn/mISDN/dsp_dtmf.c b/drivers/isdn/mISDN/dsp_dtmf.c
index 9ae2d33b06f7..5b484c3f4af6 100644
--- a/drivers/isdn/mISDN/dsp_dtmf.c
+++ b/drivers/isdn/mISDN/dsp_dtmf.c
@@ -106,7 +106,7 @@ void dsp_dtmf_hardware(struct dsp *dsp)
  * tested it allot. it even works with very short tones (40ms). the only
  * disadvantage is, that it doesn't work good with different volumes of both
  * tones. this will happen, if accoustically coupled dialers are used.
- * it sometimes detects tones during speach, which is normal for decoders.
+ * it sometimes detects tones during speech, which is normal for decoders.
  * use sequences to given commands during calls.
  *
  * dtmf - points to a structure of the current dtmf state
@@ -244,7 +244,7 @@ coefficients:
 		if (result[i] < tresh) {
 			lowgroup = -1;
 			highgroup = -1;
-			break;  /* noise inbetween */
+			break;  /* noise in between */
 		}
 		/* good level found. This is allowed only one time per group */
 		if (i < NCOEFF/2) {
diff --git a/drivers/isdn/mISDN/dsp_tones.c b/drivers/isdn/mISDN/dsp_tones.c
index 7dbe54ed1deb..4e4440e8bae5 100644
--- a/drivers/isdn/mISDN/dsp_tones.c
+++ b/drivers/isdn/mISDN/dsp_tones.c
@@ -394,7 +394,7 @@ void dsp_tone_copy(struct dsp *dsp, u8 *data, int len)
 	while (len) {
 		/* find sample to start with */
 		while (42) {
-			/* warp arround */
+			/* wrap around */
 			if (!pat->seq[index]) {
 				count = 0;
 				index = 0;
diff --git a/drivers/isdn/mISDN/l1oip_core.c b/drivers/isdn/mISDN/l1oip_core.c
index bd526f664a39..22f8ec8b9247 100644
--- a/drivers/isdn/mISDN/l1oip_core.c
+++ b/drivers/isdn/mISDN/l1oip_core.c
@@ -179,7 +179,7 @@ NOTE: A value of 0 equals 256 bytes of data.
 - Time Base = Timestamp of first sample in frame
 The "Time Base" is used to rearange packets and to detect packet loss.
 The 16 bits are sent in network order (MSB first) and count 1/8000 th of a
-second. This causes a wrap arround each 8,192 seconds. There is no requirement
+second. This causes a wrap around each 8,192 seconds. There is no requirement
 for the initial "Time Base", but 0 should be used for the first packet.
 In case of HDLC data, this timestamp counts the packet or byte number.
 
@@ -205,7 +205,7 @@ On Demand:
 
 If the ondemand parameter is given, the remote IP is set to 0 on timeout.
 This will stop keepalive traffic to remote. If the remote is online again,
-traffic will continue to the remote address. This is usefull for road warriors.
+traffic will continue to the remote address. This is useful for road warriors.
 This feature only works with ID set, otherwhise it is highly unsecure.
 
 
@@ -590,7 +590,7 @@ multiframe:
 			return;
 		}
 	} else
-		mlen = len-2; /* single frame, substract timebase */
+		mlen = len-2; /* single frame, subtract timebase */
 
 	if (len < 2) {
 		printk(KERN_WARNING "%s: packet error - packet too short, time "
diff --git a/drivers/isdn/mISDN/layer2.c b/drivers/isdn/mISDN/layer2.c
index 4ae75053c9d2..d0aeb44ee7c0 100644
--- a/drivers/isdn/mISDN/layer2.c
+++ b/drivers/isdn/mISDN/layer2.c
@@ -1864,7 +1864,7 @@ ph_data_indication(struct layer2 *l2, struct mISDNhead *hh, struct sk_buff *skb)
 		psapi >>= 2;
 		ptei >>= 1;
 		if (psapi != l2->sapi) {
-			/* not our bussiness */
+			/* not our business */
 			if (*debug & DEBUG_L2)
 				printk(KERN_DEBUG "%s: sapi %d/%d mismatch\n",
 					__func__, psapi, l2->sapi);
@@ -1872,7 +1872,7 @@ ph_data_indication(struct layer2 *l2, struct mISDNhead *hh, struct sk_buff *skb)
 			return 0;
 		}
 		if ((ptei != l2->tei) && (ptei != GROUP_TEI)) {
-			/* not our bussiness */
+			/* not our business */
 			if (*debug & DEBUG_L2)
 				printk(KERN_DEBUG "%s: tei %d/%d mismatch\n",
 					__func__, ptei, l2->tei);
diff --git a/drivers/leds/led-triggers.c b/drivers/leds/led-triggers.c
index c41eb6180c9c..4bebae733349 100644
--- a/drivers/leds/led-triggers.c
+++ b/drivers/leds/led-triggers.c
@@ -231,6 +231,26 @@ void led_trigger_event(struct led_trigger *trigger,
 }
 EXPORT_SYMBOL_GPL(led_trigger_event);
 
+void led_trigger_blink(struct led_trigger *trigger,
+		       unsigned long *delay_on,
+		       unsigned long *delay_off)
+{
+	struct list_head *entry;
+
+	if (!trigger)
+		return;
+
+	read_lock(&trigger->leddev_list_lock);
+	list_for_each(entry, &trigger->led_cdevs) {
+		struct led_classdev *led_cdev;
+
+		led_cdev = list_entry(entry, struct led_classdev, trig_list);
+		led_blink_set(led_cdev, delay_on, delay_off);
+	}
+	read_unlock(&trigger->leddev_list_lock);
+}
+EXPORT_SYMBOL_GPL(led_trigger_blink);
+
 void led_trigger_register_simple(const char *name, struct led_trigger **tp)
 {
 	struct led_trigger *trigger;
diff --git a/drivers/leds/leds-pca9532.c b/drivers/leds/leds-pca9532.c
index afac338d5025..5bf63af09ddf 100644
--- a/drivers/leds/leds-pca9532.c
+++ b/drivers/leds/leds-pca9532.c
@@ -58,7 +58,7 @@ static struct i2c_driver pca9532_driver = {
 	.id_table = pca9532_id,
 };
 
-/* We have two pwm/blinkers, but 16 possible leds to drive. Additionaly,
+/* We have two pwm/blinkers, but 16 possible leds to drive. Additionally,
  * the clever Thecus people are using one pwm to drive the beeper. So,
  * as a compromise we average one pwm to the values requested by all
  * leds that are not ON/OFF.
diff --git a/drivers/leds/leds-wm8350.c b/drivers/leds/leds-wm8350.c
index a04523273282..f14edd82cb00 100644
--- a/drivers/leds/leds-wm8350.c
+++ b/drivers/leds/leds-wm8350.c
@@ -215,13 +215,13 @@ static int wm8350_led_probe(struct platform_device *pdev)
 
 	isink = regulator_get(&pdev->dev, "led_isink");
 	if (IS_ERR(isink)) {
-		printk(KERN_ERR "%s: cant get ISINK\n", __func__);
+		printk(KERN_ERR "%s: can't get ISINK\n", __func__);
 		return PTR_ERR(isink);
 	}
 
 	dcdc = regulator_get(&pdev->dev, "led_vcc");
 	if (IS_ERR(dcdc)) {
-		printk(KERN_ERR "%s: cant get DCDC\n", __func__);
+		printk(KERN_ERR "%s: can't get DCDC\n", __func__);
 		ret = PTR_ERR(dcdc);
 		goto err_isink;
 	}
diff --git a/drivers/lguest/lguest_user.c b/drivers/lguest/lguest_user.c
index 3c781cdddda9..948c547b8e9e 100644
--- a/drivers/lguest/lguest_user.c
+++ b/drivers/lguest/lguest_user.c
@@ -130,7 +130,7 @@ static int add_eventfd(struct lguest *lg, unsigned long addr, int fd)
 	rcu_assign_pointer(lg->eventfds, new);
 
 	/*
-	 * We're not in a big hurry.  Wait until noone's looking at old
+	 * We're not in a big hurry.  Wait until no one's looking at old
 	 * version, then free it.
 	 */
 	synchronize_rcu();
diff --git a/drivers/macintosh/adbhid.c b/drivers/macintosh/adbhid.c
index 5396c67ba0a4..09d72bb00d12 100644
--- a/drivers/macintosh/adbhid.c
+++ b/drivers/macintosh/adbhid.c
@@ -328,7 +328,7 @@ adbhid_input_keycode(int id, int scancode, int repeat)
 	switch (keycode) {
 	case ADB_KEY_CAPSLOCK:
 		if (!restore_capslock_events) {
-			/* Generate down/up events for CapsLock everytime. */
+			/* Generate down/up events for CapsLock every time. */
 			input_report_key(ahid->input, KEY_CAPSLOCK, 1);
 			input_sync(ahid->input);
 			input_report_key(ahid->input, KEY_CAPSLOCK, 0);
diff --git a/drivers/macintosh/macio-adb.c b/drivers/macintosh/macio-adb.c
index bd6da7a9c55b..b6ef8f590764 100644
--- a/drivers/macintosh/macio-adb.c
+++ b/drivers/macintosh/macio-adb.c
@@ -147,7 +147,7 @@ static int macio_adb_reset_bus(void)
 
 	/* Hrm... we may want to not lock interrupts for so
 	 * long ... oh well, who uses that chip anyway ? :)
-	 * That function will be seldomly used during boot
+	 * That function will be seldom used during boot
 	 * on rare machines, so...
 	 */
 	spin_lock_irqsave(&macio_lock, flags);
diff --git a/drivers/macintosh/therm_adt746x.c b/drivers/macintosh/therm_adt746x.c
index 9e3e2c566598..02367308ff2e 100644
--- a/drivers/macintosh/therm_adt746x.c
+++ b/drivers/macintosh/therm_adt746x.c
@@ -662,7 +662,7 @@ static void thermostat_create_files(void)
 		err |= device_create_file(&of_dev->dev, &dev_attr_sensor2_fan_speed);
 	if (err)
 		printk(KERN_WARNING
-			"Failed to create tempertaure attribute file(s).\n");
+			"Failed to create temperature attribute file(s).\n");
 }
 
 static void thermostat_remove_files(void)
diff --git a/drivers/macintosh/therm_pm72.c b/drivers/macintosh/therm_pm72.c
index bca2af2e3760..bb8b722a9783 100644
--- a/drivers/macintosh/therm_pm72.c
+++ b/drivers/macintosh/therm_pm72.c
@@ -91,7 +91,7 @@
  *
  *  Mar. 10, 2005 : 1.2
  *	- Add basic support for Xserve G5
- *	- Retreive pumps min/max from EEPROM image in device-tree (broken)
+ *	- Retrieve pumps min/max from EEPROM image in device-tree (broken)
  *	- Use min/max macros here or there
  *	- Latest darwin updated U3H min fan speed to 20% PWM
  *
@@ -153,7 +153,7 @@ static struct i2c_adapter *		u3_0;
 static struct i2c_adapter *		u3_1;
 static struct i2c_adapter *		k2;
 static struct i2c_client *		fcu;
-static struct cpu_pid_state		cpu_state[2];
+static struct cpu_pid_state		processor_state[2];
 static struct basckside_pid_params	backside_params;
 static struct backside_pid_state	backside_state;
 static struct drives_pid_state		drives_state;
@@ -375,7 +375,7 @@ static int read_smon_adc(struct cpu_pid_state *state, int chan)
 		rc = i2c_master_send(state->monitor, buf, 2);
 		if (rc <= 0)
 			goto error;
-		/* Wait for convertion */
+		/* Wait for conversion */
 		msleep(1);
 		/* Switch to data register */
 		buf[0] = 4;
@@ -664,8 +664,8 @@ static int read_eeprom(int cpu, struct mpu_data *out)
 
 static void fetch_cpu_pumps_minmax(void)
 {
-	struct cpu_pid_state *state0 = &cpu_state[0];
-	struct cpu_pid_state *state1 = &cpu_state[1];
+	struct cpu_pid_state *state0 = &processor_state[0];
+	struct cpu_pid_state *state1 = &processor_state[1];
 	u16 pump_min = 0, pump_max = 0xffff;
 	u16 tmp[4];
 
@@ -717,17 +717,17 @@ static ssize_t show_##name(struct device *dev, struct device_attribute *attr, ch
 	return sprintf(buf, "%d", data);			\
 }
 
-BUILD_SHOW_FUNC_FIX(cpu0_temperature, cpu_state[0].last_temp)
-BUILD_SHOW_FUNC_FIX(cpu0_voltage, cpu_state[0].voltage)
-BUILD_SHOW_FUNC_FIX(cpu0_current, cpu_state[0].current_a)
-BUILD_SHOW_FUNC_INT(cpu0_exhaust_fan_rpm, cpu_state[0].rpm)
-BUILD_SHOW_FUNC_INT(cpu0_intake_fan_rpm, cpu_state[0].intake_rpm)
+BUILD_SHOW_FUNC_FIX(cpu0_temperature, processor_state[0].last_temp)
+BUILD_SHOW_FUNC_FIX(cpu0_voltage, processor_state[0].voltage)
+BUILD_SHOW_FUNC_FIX(cpu0_current, processor_state[0].current_a)
+BUILD_SHOW_FUNC_INT(cpu0_exhaust_fan_rpm, processor_state[0].rpm)
+BUILD_SHOW_FUNC_INT(cpu0_intake_fan_rpm, processor_state[0].intake_rpm)
 
-BUILD_SHOW_FUNC_FIX(cpu1_temperature, cpu_state[1].last_temp)
-BUILD_SHOW_FUNC_FIX(cpu1_voltage, cpu_state[1].voltage)
-BUILD_SHOW_FUNC_FIX(cpu1_current, cpu_state[1].current_a)
-BUILD_SHOW_FUNC_INT(cpu1_exhaust_fan_rpm, cpu_state[1].rpm)
-BUILD_SHOW_FUNC_INT(cpu1_intake_fan_rpm, cpu_state[1].intake_rpm)
+BUILD_SHOW_FUNC_FIX(cpu1_temperature, processor_state[1].last_temp)
+BUILD_SHOW_FUNC_FIX(cpu1_voltage, processor_state[1].voltage)
+BUILD_SHOW_FUNC_FIX(cpu1_current, processor_state[1].current_a)
+BUILD_SHOW_FUNC_INT(cpu1_exhaust_fan_rpm, processor_state[1].rpm)
+BUILD_SHOW_FUNC_INT(cpu1_intake_fan_rpm, processor_state[1].intake_rpm)
 
 BUILD_SHOW_FUNC_FIX(backside_temperature, backside_state.last_temp)
 BUILD_SHOW_FUNC_INT(backside_fan_pwm, backside_state.pwm)
@@ -919,8 +919,8 @@ static void do_cpu_pid(struct cpu_pid_state *state, s32 temp, s32 power)
 
 static void do_monitor_cpu_combined(void)
 {
-	struct cpu_pid_state *state0 = &cpu_state[0];
-	struct cpu_pid_state *state1 = &cpu_state[1];
+	struct cpu_pid_state *state0 = &processor_state[0];
+	struct cpu_pid_state *state1 = &processor_state[1];
 	s32 temp0, power0, temp1, power1;
 	s32 temp_combi, power_combi;
 	int rc, intake, pump;
@@ -1150,7 +1150,7 @@ static void do_monitor_cpu_rack(struct cpu_pid_state *state)
 /*
  * Initialize the state structure for one CPU control loop
  */
-static int init_cpu_state(struct cpu_pid_state *state, int index)
+static int init_processor_state(struct cpu_pid_state *state, int index)
 {
 	int err;
 
@@ -1192,7 +1192,7 @@ static int init_cpu_state(struct cpu_pid_state *state, int index)
 		err |= device_create_file(&of_dev->dev, &dev_attr_cpu1_intake_fan_rpm);
 	}
 	if (err)
-		printk(KERN_WARNING "Failed to create some of the atribute"
+		printk(KERN_WARNING "Failed to create some of the attribute"
 			"files for CPU %d\n", index);
 
 	return 0;
@@ -1205,7 +1205,7 @@ static int init_cpu_state(struct cpu_pid_state *state, int index)
 /*
  * Dispose of the state data for one CPU control loop
  */
-static void dispose_cpu_state(struct cpu_pid_state *state)
+static void dispose_processor_state(struct cpu_pid_state *state)
 {
 	if (state->monitor == NULL)
 		return;
@@ -1804,9 +1804,9 @@ static int main_control_loop(void *x)
 		set_pwm_fan(SLOTS_FAN_PWM_INDEX, SLOTS_FAN_DEFAULT_PWM);
 
 	/* Initialize ADCs */
-	initialize_adc(&cpu_state[0]);
-	if (cpu_state[1].monitor != NULL)
-		initialize_adc(&cpu_state[1]);
+	initialize_adc(&processor_state[0]);
+	if (processor_state[1].monitor != NULL)
+		initialize_adc(&processor_state[1]);
 
 	fcu_tickle_ticks = FCU_TICKLE_TICKS;
 
@@ -1833,14 +1833,14 @@ static int main_control_loop(void *x)
 		if (cpu_pid_type == CPU_PID_TYPE_COMBINED)
 			do_monitor_cpu_combined();
 		else if (cpu_pid_type == CPU_PID_TYPE_RACKMAC) {
-			do_monitor_cpu_rack(&cpu_state[0]);
-			if (cpu_state[1].monitor != NULL)
-				do_monitor_cpu_rack(&cpu_state[1]);
+			do_monitor_cpu_rack(&processor_state[0]);
+			if (processor_state[1].monitor != NULL)
+				do_monitor_cpu_rack(&processor_state[1]);
 			// better deal with UP
 		} else {
-			do_monitor_cpu_split(&cpu_state[0]);
-			if (cpu_state[1].monitor != NULL)
-				do_monitor_cpu_split(&cpu_state[1]);
+			do_monitor_cpu_split(&processor_state[0]);
+			if (processor_state[1].monitor != NULL)
+				do_monitor_cpu_split(&processor_state[1]);
 			// better deal with UP
 		}
 		/* Then, the rest */
@@ -1885,8 +1885,8 @@ static int main_control_loop(void *x)
  */
 static void dispose_control_loops(void)
 {
-	dispose_cpu_state(&cpu_state[0]);
-	dispose_cpu_state(&cpu_state[1]);
+	dispose_processor_state(&processor_state[0]);
+	dispose_processor_state(&processor_state[1]);
 	dispose_backside_state(&backside_state);
 	dispose_drives_state(&drives_state);
 	dispose_slots_state(&slots_state);
@@ -1928,12 +1928,12 @@ static int create_control_loops(void)
 	/* Create control loops for everything. If any fail, everything
 	 * fails
 	 */
-	if (init_cpu_state(&cpu_state[0], 0))
+	if (init_processor_state(&processor_state[0], 0))
 		goto fail;
 	if (cpu_pid_type == CPU_PID_TYPE_COMBINED)
 		fetch_cpu_pumps_minmax();
 
-	if (cpu_count > 1 && init_cpu_state(&cpu_state[1], 1))
+	if (cpu_count > 1 && init_processor_state(&processor_state[1], 1))
 		goto fail;
 	if (init_backside_state(&backside_state))
 		goto fail;
diff --git a/drivers/macintosh/therm_windtunnel.c b/drivers/macintosh/therm_windtunnel.c
index d37819fd5ad3..46c4e95f10d6 100644
--- a/drivers/macintosh/therm_windtunnel.c
+++ b/drivers/macintosh/therm_windtunnel.c
@@ -45,7 +45,7 @@
 #include <asm/sections.h>
 #include <asm/macio.h>
 
-#define LOG_TEMP		0			/* continously log temperature */
+#define LOG_TEMP		0			/* continuously log temperature */
 
 static struct {
 	volatile int		running;
diff --git a/drivers/md/Kconfig b/drivers/md/Kconfig
index 98d9ec85e0eb..8420129fc5ee 100644
--- a/drivers/md/Kconfig
+++ b/drivers/md/Kconfig
@@ -327,4 +327,10 @@ config DM_UEVENT
 	---help---
 	Generate udev events for DM events.
 
+config DM_FLAKEY
+       tristate "Flakey target (EXPERIMENTAL)"
+       depends on BLK_DEV_DM && EXPERIMENTAL
+       ---help---
+         A target that intermittently fails I/O for debugging purposes.
+
 endif # MD
diff --git a/drivers/md/Makefile b/drivers/md/Makefile
index d0138606c2e8..448838b1f92a 100644
--- a/drivers/md/Makefile
+++ b/drivers/md/Makefile
@@ -29,6 +29,7 @@ obj-$(CONFIG_BLK_DEV_MD)	+= md-mod.o
 obj-$(CONFIG_BLK_DEV_DM)	+= dm-mod.o
 obj-$(CONFIG_DM_CRYPT)		+= dm-crypt.o
 obj-$(CONFIG_DM_DELAY)		+= dm-delay.o
+obj-$(CONFIG_DM_FLAKEY)		+= dm-flakey.o
 obj-$(CONFIG_DM_MULTIPATH)	+= dm-multipath.o dm-round-robin.o
 obj-$(CONFIG_DM_MULTIPATH_QL)	+= dm-queue-length.o
 obj-$(CONFIG_DM_MULTIPATH_ST)	+= dm-service-time.o
diff --git a/drivers/md/bitmap.h b/drivers/md/bitmap.h
index 931a7a7c3796..d0aeaf46d932 100644
--- a/drivers/md/bitmap.h
+++ b/drivers/md/bitmap.h
@@ -45,7 +45,7 @@
  *
  * The counter counts pending write requests, plus the on-disk bit.
  * When the counter is '1' and the resync bits are clear, the on-disk
- * bit can be cleared aswell, thus setting the counter to 0.
+ * bit can be cleared as well, thus setting the counter to 0.
  * When we set a bit, or in the counter (to start a write), if the fields is
  * 0, we first set the disk bit and set the counter to 1.
  *
diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index 2c62c1169f78..c8827ffd85bb 100644
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -1324,20 +1324,29 @@ static int crypt_setkey_allcpus(struct crypt_config *cc)
 
 static int crypt_set_key(struct crypt_config *cc, char *key)
 {
+	int r = -EINVAL;
+	int key_string_len = strlen(key);
+
 	/* The key size may not be changed. */
-	if (cc->key_size != (strlen(key) >> 1))
-		return -EINVAL;
+	if (cc->key_size != (key_string_len >> 1))
+		goto out;
 
 	/* Hyphen (which gives a key_size of zero) means there is no key. */
 	if (!cc->key_size && strcmp(key, "-"))
-		return -EINVAL;
+		goto out;
 
 	if (cc->key_size && crypt_decode_key(cc->key, key, cc->key_size) < 0)
-		return -EINVAL;
+		goto out;
 
 	set_bit(DM_CRYPT_KEY_VALID, &cc->flags);
 
-	return crypt_setkey_allcpus(cc);
+	r = crypt_setkey_allcpus(cc);
+
+out:
+	/* Hex key string not needed after here, so wipe it. */
+	memset(key, '0', key_string_len);
+
+	return r;
 }
 
 static int crypt_wipe_key(struct crypt_config *cc)
diff --git a/drivers/md/dm-flakey.c b/drivers/md/dm-flakey.c
new file mode 100644
index 000000000000..ea790623c30b
--- /dev/null
+++ b/drivers/md/dm-flakey.c
@@ -0,0 +1,212 @@
+/*
+ * Copyright (C) 2003 Sistina Software (UK) Limited.
+ * Copyright (C) 2004, 2010 Red Hat, Inc. All rights reserved.
+ *
+ * This file is released under the GPL.
+ */
+
+#include <linux/device-mapper.h>
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/blkdev.h>
+#include <linux/bio.h>
+#include <linux/slab.h>
+
+#define DM_MSG_PREFIX "flakey"
+
+/*
+ * Flakey: Used for testing only, simulates intermittent,
+ * catastrophic device failure.
+ */
+struct flakey_c {
+	struct dm_dev *dev;
+	unsigned long start_time;
+	sector_t start;
+	unsigned up_interval;
+	unsigned down_interval;
+};
+
+/*
+ * Construct a flakey mapping: <dev_path> <offset> <up interval> <down interval>
+ */
+static int flakey_ctr(struct dm_target *ti, unsigned int argc, char **argv)
+{
+	struct flakey_c *fc;
+	unsigned long long tmp;
+
+	if (argc != 4) {
+		ti->error = "dm-flakey: Invalid argument count";
+		return -EINVAL;
+	}
+
+	fc = kmalloc(sizeof(*fc), GFP_KERNEL);
+	if (!fc) {
+		ti->error = "dm-flakey: Cannot allocate linear context";
+		return -ENOMEM;
+	}
+	fc->start_time = jiffies;
+
+	if (sscanf(argv[1], "%llu", &tmp) != 1) {
+		ti->error = "dm-flakey: Invalid device sector";
+		goto bad;
+	}
+	fc->start = tmp;
+
+	if (sscanf(argv[2], "%u", &fc->up_interval) != 1) {
+		ti->error = "dm-flakey: Invalid up interval";
+		goto bad;
+	}
+
+	if (sscanf(argv[3], "%u", &fc->down_interval) != 1) {
+		ti->error = "dm-flakey: Invalid down interval";
+		goto bad;
+	}
+
+	if (!(fc->up_interval + fc->down_interval)) {
+		ti->error = "dm-flakey: Total (up + down) interval is zero";
+		goto bad;
+	}
+
+	if (fc->up_interval + fc->down_interval < fc->up_interval) {
+		ti->error = "dm-flakey: Interval overflow";
+		goto bad;
+	}
+
+	if (dm_get_device(ti, argv[0], dm_table_get_mode(ti->table), &fc->dev)) {
+		ti->error = "dm-flakey: Device lookup failed";
+		goto bad;
+	}
+
+	ti->num_flush_requests = 1;
+	ti->private = fc;
+	return 0;
+
+bad:
+	kfree(fc);
+	return -EINVAL;
+}
+
+static void flakey_dtr(struct dm_target *ti)
+{
+	struct flakey_c *fc = ti->private;
+
+	dm_put_device(ti, fc->dev);
+	kfree(fc);
+}
+
+static sector_t flakey_map_sector(struct dm_target *ti, sector_t bi_sector)
+{
+	struct flakey_c *fc = ti->private;
+
+	return fc->start + (bi_sector - ti->begin);
+}
+
+static void flakey_map_bio(struct dm_target *ti, struct bio *bio)
+{
+	struct flakey_c *fc = ti->private;
+
+	bio->bi_bdev = fc->dev->bdev;
+	if (bio_sectors(bio))
+		bio->bi_sector = flakey_map_sector(ti, bio->bi_sector);
+}
+
+static int flakey_map(struct dm_target *ti, struct bio *bio,
+		      union map_info *map_context)
+{
+	struct flakey_c *fc = ti->private;
+	unsigned elapsed;
+
+	/* Are we alive ? */
+	elapsed = (jiffies - fc->start_time) / HZ;
+	if (elapsed % (fc->up_interval + fc->down_interval) >= fc->up_interval)
+		return -EIO;
+
+	flakey_map_bio(ti, bio);
+
+	return DM_MAPIO_REMAPPED;
+}
+
+static int flakey_status(struct dm_target *ti, status_type_t type,
+			 char *result, unsigned int maxlen)
+{
+	struct flakey_c *fc = ti->private;
+
+	switch (type) {
+	case STATUSTYPE_INFO:
+		result[0] = '\0';
+		break;
+
+	case STATUSTYPE_TABLE:
+		snprintf(result, maxlen, "%s %llu %u %u", fc->dev->name,
+			 (unsigned long long)fc->start, fc->up_interval,
+			 fc->down_interval);
+		break;
+	}
+	return 0;
+}
+
+static int flakey_ioctl(struct dm_target *ti, unsigned int cmd, unsigned long arg)
+{
+	struct flakey_c *fc = ti->private;
+
+	return __blkdev_driver_ioctl(fc->dev->bdev, fc->dev->mode, cmd, arg);
+}
+
+static int flakey_merge(struct dm_target *ti, struct bvec_merge_data *bvm,
+			struct bio_vec *biovec, int max_size)
+{
+	struct flakey_c *fc = ti->private;
+	struct request_queue *q = bdev_get_queue(fc->dev->bdev);
+
+	if (!q->merge_bvec_fn)
+		return max_size;
+
+	bvm->bi_bdev = fc->dev->bdev;
+	bvm->bi_sector = flakey_map_sector(ti, bvm->bi_sector);
+
+	return min(max_size, q->merge_bvec_fn(q, bvm, biovec));
+}
+
+static int flakey_iterate_devices(struct dm_target *ti, iterate_devices_callout_fn fn, void *data)
+{
+	struct flakey_c *fc = ti->private;
+
+	return fn(ti, fc->dev, fc->start, ti->len, data);
+}
+
+static struct target_type flakey_target = {
+	.name   = "flakey",
+	.version = {1, 1, 0},
+	.module = THIS_MODULE,
+	.ctr    = flakey_ctr,
+	.dtr    = flakey_dtr,
+	.map    = flakey_map,
+	.status = flakey_status,
+	.ioctl	= flakey_ioctl,
+	.merge	= flakey_merge,
+	.iterate_devices = flakey_iterate_devices,
+};
+
+static int __init dm_flakey_init(void)
+{
+	int r = dm_register_target(&flakey_target);
+
+	if (r < 0)
+		DMERR("register failed %d", r);
+
+	return r;
+}
+
+static void __exit dm_flakey_exit(void)
+{
+	dm_unregister_target(&flakey_target);
+}
+
+/* Module hooks */
+module_init(dm_flakey_init);
+module_exit(dm_flakey_exit);
+
+MODULE_DESCRIPTION(DM_NAME " flakey target");
+MODULE_AUTHOR("Joe Thornber <dm-devel@redhat.com>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/md/dm-ioctl.c b/drivers/md/dm-ioctl.c
index 6d12775a1061..4cacdad2270a 100644
--- a/drivers/md/dm-ioctl.c
+++ b/drivers/md/dm-ioctl.c
@@ -1501,14 +1501,10 @@ static int check_version(unsigned int cmd, struct dm_ioctl __user *user)
 	return r;
 }
 
-static void free_params(struct dm_ioctl *param)
-{
-	vfree(param);
-}
-
 static int copy_params(struct dm_ioctl __user *user, struct dm_ioctl **param)
 {
 	struct dm_ioctl tmp, *dmi;
+	int secure_data;
 
 	if (copy_from_user(&tmp, user, sizeof(tmp) - sizeof(tmp.data)))
 		return -EFAULT;
@@ -1516,17 +1512,30 @@ static int copy_params(struct dm_ioctl __user *user, struct dm_ioctl **param)
 	if (tmp.data_size < (sizeof(tmp) - sizeof(tmp.data)))
 		return -EINVAL;
 
+	secure_data = tmp.flags & DM_SECURE_DATA_FLAG;
+
 	dmi = vmalloc(tmp.data_size);
-	if (!dmi)
+	if (!dmi) {
+		if (secure_data && clear_user(user, tmp.data_size))
+			return -EFAULT;
 		return -ENOMEM;
-
-	if (copy_from_user(dmi, user, tmp.data_size)) {
-		vfree(dmi);
-		return -EFAULT;
 	}
 
+	if (copy_from_user(dmi, user, tmp.data_size))
+		goto bad;
+
+	/* Wipe the user buffer so we do not return it to userspace */
+	if (secure_data && clear_user(user, tmp.data_size))
+		goto bad;
+
 	*param = dmi;
 	return 0;
+
+bad:
+	if (secure_data)
+		memset(dmi, 0, tmp.data_size);
+	vfree(dmi);
+	return -EFAULT;
 }
 
 static int validate_params(uint cmd, struct dm_ioctl *param)
@@ -1534,6 +1543,7 @@ static int validate_params(uint cmd, struct dm_ioctl *param)
 	/* Always clear this flag */
 	param->flags &= ~DM_BUFFER_FULL_FLAG;
 	param->flags &= ~DM_UEVENT_GENERATED_FLAG;
+	param->flags &= ~DM_SECURE_DATA_FLAG;
 
 	/* Ignores parameters */
 	if (cmd == DM_REMOVE_ALL_CMD ||
@@ -1561,10 +1571,11 @@ static int validate_params(uint cmd, struct dm_ioctl *param)
 static int ctl_ioctl(uint command, struct dm_ioctl __user *user)
 {
 	int r = 0;
+	int wipe_buffer;
 	unsigned int cmd;
 	struct dm_ioctl *uninitialized_var(param);
 	ioctl_fn fn = NULL;
-	size_t param_size;
+	size_t input_param_size;
 
 	/* only root can play with this */
 	if (!capable(CAP_SYS_ADMIN))
@@ -1611,13 +1622,15 @@ static int ctl_ioctl(uint command, struct dm_ioctl __user *user)
 	if (r)
 		return r;
 
+	input_param_size = param->data_size;
+	wipe_buffer = param->flags & DM_SECURE_DATA_FLAG;
+
 	r = validate_params(cmd, param);
 	if (r)
 		goto out;
 
-	param_size = param->data_size;
 	param->data_size = sizeof(*param);
-	r = fn(param, param_size);
+	r = fn(param, input_param_size);
 
 	/*
 	 * Copy the results back to userland.
@@ -1625,8 +1638,11 @@ static int ctl_ioctl(uint command, struct dm_ioctl __user *user)
 	if (!r && copy_to_user(user, param, param->data_size))
 		r = -EFAULT;
 
- out:
-	free_params(param);
+out:
+	if (wipe_buffer)
+		memset(param, 0, input_param_size);
+
+	vfree(param);
 	return r;
 }
 
diff --git a/drivers/md/dm-log.c b/drivers/md/dm-log.c
index 57968eb382c1..a1f321889676 100644
--- a/drivers/md/dm-log.c
+++ b/drivers/md/dm-log.c
@@ -543,7 +543,7 @@ static int disk_ctr(struct dm_dirty_log *log, struct dm_target *ti,
 		return -EINVAL;
 	}
 
-	r = dm_get_device(ti, argv[0], FMODE_READ | FMODE_WRITE, &dev);
+	r = dm_get_device(ti, argv[0], dm_table_get_mode(ti->table), &dev);
 	if (r)
 		return r;
 
diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c
index 4b0b63c290a6..a550a057d991 100644
--- a/drivers/md/dm-mpath.c
+++ b/drivers/md/dm-mpath.c
@@ -844,8 +844,8 @@ static int multipath_ctr(struct dm_target *ti, unsigned int argc,
 {
 	/* target parameters */
 	static struct param _params[] = {
-		{1, 1024, "invalid number of priority groups"},
-		{1, 1024, "invalid initial priority group number"},
+		{0, 1024, "invalid number of priority groups"},
+		{0, 1024, "invalid initial priority group number"},
 	};
 
 	int r;
@@ -879,6 +879,13 @@ static int multipath_ctr(struct dm_target *ti, unsigned int argc,
 	if (r)
 		goto bad;
 
+	if ((!m->nr_priority_groups && next_pg_num) ||
+	    (m->nr_priority_groups && !next_pg_num)) {
+		ti->error = "invalid initial priority group";
+		r = -EINVAL;
+		goto bad;
+	}
+
 	/* parse the priority groups */
 	while (as.argc) {
 		struct priority_group *pg;
@@ -1065,7 +1072,7 @@ out:
 static int action_dev(struct multipath *m, struct dm_dev *dev,
 		      action_fn action)
 {
-	int r = 0;
+	int r = -EINVAL;
 	struct pgpath *pgpath;
 	struct priority_group *pg;
 
@@ -1415,7 +1422,7 @@ static int multipath_status(struct dm_target *ti, status_type_t type,
 	else if (m->current_pg)
 		pg_num = m->current_pg->pg_num;
 	else
-			pg_num = 1;
+		pg_num = (m->nr_priority_groups ? 1 : 0);
 
 	DMEMIT("%u ", pg_num);
 
@@ -1669,7 +1676,7 @@ out:
  *---------------------------------------------------------------*/
 static struct target_type multipath_target = {
 	.name = "multipath",
-	.version = {1, 2, 0},
+	.version = {1, 3, 0},
 	.module = THIS_MODULE,
 	.ctr = multipath_ctr,
 	.dtr = multipath_dtr,
diff --git a/drivers/md/dm-region-hash.c b/drivers/md/dm-region-hash.c
index dad011aed0c9..7771ed212182 100644
--- a/drivers/md/dm-region-hash.c
+++ b/drivers/md/dm-region-hash.c
@@ -419,7 +419,7 @@ void dm_rh_mark_nosync(struct dm_region_hash *rh, struct bio *bio)
 	/*
 	 * Possible cases:
 	 *   1) DM_RH_DIRTY
-	 *   2) DM_RH_NOSYNC: was dirty, other preceeding writes failed
+	 *   2) DM_RH_NOSYNC: was dirty, other preceding writes failed
 	 *   3) DM_RH_RECOVERING: flushing pending writes
 	 * Either case, the region should have not been connected to list.
 	 */
diff --git a/drivers/md/dm-snap.c b/drivers/md/dm-snap.c
index fdde53cd12b7..a2d330942cb2 100644
--- a/drivers/md/dm-snap.c
+++ b/drivers/md/dm-snap.c
@@ -1080,7 +1080,7 @@ static int snapshot_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 	argv++;
 	argc--;
 
-	r = dm_get_device(ti, cow_path, FMODE_READ | FMODE_WRITE, &s->cow);
+	r = dm_get_device(ti, cow_path, dm_table_get_mode(ti->table), &s->cow);
 	if (r) {
 		ti->error = "Cannot get COW device";
 		goto bad_cow;
diff --git a/drivers/md/dm-stripe.c b/drivers/md/dm-stripe.c
index dddfa14f2982..3d80cf0c152d 100644
--- a/drivers/md/dm-stripe.c
+++ b/drivers/md/dm-stripe.c
@@ -396,9 +396,29 @@ static void stripe_io_hints(struct dm_target *ti,
 	blk_limits_io_opt(limits, chunk_size * sc->stripes);
 }
 
+static int stripe_merge(struct dm_target *ti, struct bvec_merge_data *bvm,
+			struct bio_vec *biovec, int max_size)
+{
+	struct stripe_c *sc = ti->private;
+	sector_t bvm_sector = bvm->bi_sector;
+	uint32_t stripe;
+	struct request_queue *q;
+
+	stripe_map_sector(sc, bvm_sector, &stripe, &bvm_sector);
+
+	q = bdev_get_queue(sc->stripe[stripe].dev->bdev);
+	if (!q->merge_bvec_fn)
+		return max_size;
+
+	bvm->bi_bdev = sc->stripe[stripe].dev->bdev;
+	bvm->bi_sector = sc->stripe[stripe].physical_start + bvm_sector;
+
+	return min(max_size, q->merge_bvec_fn(q, bvm, biovec));
+}
+
 static struct target_type stripe_target = {
 	.name   = "striped",
-	.version = {1, 3, 1},
+	.version = {1, 4, 0},
 	.module = THIS_MODULE,
 	.ctr    = stripe_ctr,
 	.dtr    = stripe_dtr,
@@ -407,6 +427,7 @@ static struct target_type stripe_target = {
 	.status = stripe_status,
 	.iterate_devices = stripe_iterate_devices,
 	.io_hints = stripe_io_hints,
+	.merge  = stripe_merge,
 };
 
 int __init dm_stripe_init(void)
diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index 416d4e258df6..cb8380c9767f 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -927,20 +927,80 @@ static int dm_table_build_index(struct dm_table *t)
 }
 
 /*
+ * Get a disk whose integrity profile reflects the table's profile.
+ * If %match_all is true, all devices' profiles must match.
+ * If %match_all is false, all devices must at least have an
+ * allocated integrity profile; but uninitialized is ok.
+ * Returns NULL if integrity support was inconsistent or unavailable.
+ */
+static struct gendisk * dm_table_get_integrity_disk(struct dm_table *t,
+						    bool match_all)
+{
+	struct list_head *devices = dm_table_get_devices(t);
+	struct dm_dev_internal *dd = NULL;
+	struct gendisk *prev_disk = NULL, *template_disk = NULL;
+
+	list_for_each_entry(dd, devices, list) {
+		template_disk = dd->dm_dev.bdev->bd_disk;
+		if (!blk_get_integrity(template_disk))
+			goto no_integrity;
+		if (!match_all && !blk_integrity_is_initialized(template_disk))
+			continue; /* skip uninitialized profiles */
+		else if (prev_disk &&
+			 blk_integrity_compare(prev_disk, template_disk) < 0)
+			goto no_integrity;
+		prev_disk = template_disk;
+	}
+
+	return template_disk;
+
+no_integrity:
+	if (prev_disk)
+		DMWARN("%s: integrity not set: %s and %s profile mismatch",
+		       dm_device_name(t->md),
+		       prev_disk->disk_name,
+		       template_disk->disk_name);
+	return NULL;
+}
+
+/*
  * Register the mapped device for blk_integrity support if
- * the underlying devices support it.
+ * the underlying devices have an integrity profile.  But all devices
+ * may not have matching profiles (checking all devices isn't reliable
+ * during table load because this table may use other DM device(s) which
+ * must be resumed before they will have an initialized integity profile).
+ * Stacked DM devices force a 2 stage integrity profile validation:
+ * 1 - during load, validate all initialized integrity profiles match
+ * 2 - during resume, validate all integrity profiles match
  */
 static int dm_table_prealloc_integrity(struct dm_table *t, struct mapped_device *md)
 {
-	struct list_head *devices = dm_table_get_devices(t);
-	struct dm_dev_internal *dd;
+	struct gendisk *template_disk = NULL;
 
-	list_for_each_entry(dd, devices, list)
-		if (bdev_get_integrity(dd->dm_dev.bdev)) {
-			t->integrity_supported = 1;
-			return blk_integrity_register(dm_disk(md), NULL);
-		}
+	template_disk = dm_table_get_integrity_disk(t, false);
+	if (!template_disk)
+		return 0;
 
+	if (!blk_integrity_is_initialized(dm_disk(md))) {
+		t->integrity_supported = 1;
+		return blk_integrity_register(dm_disk(md), NULL);
+	}
+
+	/*
+	 * If DM device already has an initalized integrity
+	 * profile the new profile should not conflict.
+	 */
+	if (blk_integrity_is_initialized(template_disk) &&
+	    blk_integrity_compare(dm_disk(md), template_disk) < 0) {
+		DMWARN("%s: conflict with existing integrity profile: "
+		       "%s profile mismatch",
+		       dm_device_name(t->md),
+		       template_disk->disk_name);
+		return 1;
+	}
+
+	/* Preserve existing initialized integrity profile */
+	t->integrity_supported = 1;
 	return 0;
 }
 
@@ -1094,41 +1154,27 @@ combine_limits:
 
 /*
  * Set the integrity profile for this device if all devices used have
- * matching profiles.
+ * matching profiles.  We're quite deep in the resume path but still
+ * don't know if all devices (particularly DM devices this device
+ * may be stacked on) have matching profiles.  Even if the profiles
+ * don't match we have no way to fail (to resume) at this point.
  */
 static void dm_table_set_integrity(struct dm_table *t)
 {
-	struct list_head *devices = dm_table_get_devices(t);
-	struct dm_dev_internal *prev = NULL, *dd = NULL;
+	struct gendisk *template_disk = NULL;
 
 	if (!blk_get_integrity(dm_disk(t->md)))
 		return;
 
-	list_for_each_entry(dd, devices, list) {
-		if (prev &&
-		    blk_integrity_compare(prev->dm_dev.bdev->bd_disk,
-					  dd->dm_dev.bdev->bd_disk) < 0) {
-			DMWARN("%s: integrity not set: %s and %s mismatch",
-			       dm_device_name(t->md),
-			       prev->dm_dev.bdev->bd_disk->disk_name,
-			       dd->dm_dev.bdev->bd_disk->disk_name);
-			goto no_integrity;
-		}
-		prev = dd;
+	template_disk = dm_table_get_integrity_disk(t, true);
+	if (!template_disk &&
+	    blk_integrity_is_initialized(dm_disk(t->md))) {
+		DMWARN("%s: device no longer has a valid integrity profile",
+		       dm_device_name(t->md));
+		return;
 	}
-
-	if (!prev || !bdev_get_integrity(prev->dm_dev.bdev))
-		goto no_integrity;
-
 	blk_integrity_register(dm_disk(t->md),
-			       bdev_get_integrity(prev->dm_dev.bdev));
-
-	return;
-
-no_integrity:
-	blk_integrity_register(dm_disk(t->md), NULL);
-
-	return;
+			       blk_get_integrity(template_disk));
 }
 
 void dm_table_set_restrictions(struct dm_table *t, struct request_queue *q,
diff --git a/drivers/md/faulty.c b/drivers/md/faulty.c
index 339fdc670751..23078dabb6df 100644
--- a/drivers/md/faulty.c
+++ b/drivers/md/faulty.c
@@ -30,7 +30,7 @@
  *
  * Different modes can be active at a time, but only
  * one can be set at array creation.  Others can be added later.
- * A mode can be one-shot or recurrent with the recurrance being
+ * A mode can be one-shot or recurrent with the recurrence being
  * once in every N requests.
  * The bottom 5 bits of the "layout" indicate the mode.  The
  * remainder indicate a period, or 0 for one-shot.
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 06ecea751a39..b12b3776c0c0 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -1777,12 +1777,6 @@ int md_integrity_register(mddev_t *mddev)
 			continue;
 		if (rdev->raid_disk < 0)
 			continue;
-		/*
-		 * If at least one rdev is not integrity capable, we can not
-		 * enable data integrity for the md device.
-		 */
-		if (!bdev_get_integrity(rdev->bdev))
-			return -EINVAL;
 		if (!reference) {
 			/* Use the first rdev as the reference */
 			reference = rdev;
@@ -1793,6 +1787,8 @@ int md_integrity_register(mddev_t *mddev)
 				rdev->bdev->bd_disk) < 0)
 			return -EINVAL;
 	}
+	if (!reference || !bdev_get_integrity(reference->bdev))
+		return 0;
 	/*
 	 * All component devices are integrity capable and have matching
 	 * profiles, register the common profile for the md device.
@@ -6270,7 +6266,7 @@ static void status_resync(struct seq_file *seq, mddev_t * mddev)
 	 * rt is a sector_t, so could be 32bit or 64bit.
 	 * So we divide before multiply in case it is 32bit and close
 	 * to the limit.
-	 * We scale the divisor (db) by 32 to avoid loosing precision
+	 * We scale the divisor (db) by 32 to avoid losing precision
 	 * near the end of resync when the number of remaining sectors
 	 * is close to 'db'.
 	 * We then divide rt by 32 after multiplying by db to compensate.
diff --git a/drivers/md/md.h b/drivers/md/md.h
index 12215d437fcc..52b407369e13 100644
--- a/drivers/md/md.h
+++ b/drivers/md/md.h
@@ -94,7 +94,7 @@ struct mdk_rdev_s
 #define	In_sync		2		/* device is in_sync with rest of array */
 #define	WriteMostly	4		/* Avoid reading if at all possible */
 #define	AutoDetected	7		/* added by auto-detect */
-#define Blocked		8		/* An error occured on an externally
+#define Blocked		8		/* An error occurred on an externally
 					 * managed array, don't allow writes
 					 * until it is cleared */
 	wait_queue_head_t blocked_wait;
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index f7b62370b374..2da83d566592 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -5,7 +5,7 @@
  *
  * RAID-10 support for md.
  *
- * Base on code in raid1.c.  See raid1.c for futher copyright information.
+ * Base on code in raid1.c.  See raid1.c for further copyright information.
  *
  *
  * This program is free software; you can redistribute it and/or modify
@@ -340,14 +340,14 @@ static void raid10_end_write_request(struct bio *bio, int error)
 
 /*
  * RAID10 layout manager
- * Aswell as the chunksize and raid_disks count, there are two
+ * As well as the chunksize and raid_disks count, there are two
  * parameters: near_copies and far_copies.
  * near_copies * far_copies must be <= raid_disks.
  * Normally one of these will be 1.
  * If both are 1, we get raid0.
  * If near_copies == raid_disks, we get raid1.
  *
- * Chunks are layed out in raid0 style with near_copies copies of the
+ * Chunks are laid out in raid0 style with near_copies copies of the
  * first chunk, followed by near_copies copies of the next chunk and
  * so on.
  * If far_copies > 1, then after 1/far_copies of the array has been assigned
diff --git a/drivers/md/raid10.h b/drivers/md/raid10.h
index 2316ac2e8e21..944b1104d3b4 100644
--- a/drivers/md/raid10.h
+++ b/drivers/md/raid10.h
@@ -17,8 +17,8 @@ struct r10_private_data_s {
 	spinlock_t		device_lock;
 
 	/* geometry */
-	int			near_copies;  /* number of copies layed out raid0 style */
-	int 			far_copies;   /* number of copies layed out
+	int			near_copies;  /* number of copies laid out raid0 style */
+	int 			far_copies;   /* number of copies laid out
 					       * at large strides across drives
 					       */
 	int			far_offset;   /* far_copies are offset by 1 stripe
diff --git a/drivers/media/common/saa7146_i2c.c b/drivers/media/common/saa7146_i2c.c
index 74ee172b5bc9..b2ba9dc0dd6d 100644
--- a/drivers/media/common/saa7146_i2c.c
+++ b/drivers/media/common/saa7146_i2c.c
@@ -161,7 +161,7 @@ static int saa7146_i2c_reset(struct saa7146_dev *dev)
 		msleep(SAA7146_I2C_DELAY);
 	}
 
-	/* if any error is still present, a fatal error has occured ... */
+	/* if any error is still present, a fatal error has occurred ... */
 	status = saa7146_i2c_status(dev);
 	if ( dev->i2c_bitrate != status ) {
 		DEB_I2C(("fatal error. status:0x%08x\n",status));
@@ -326,9 +326,9 @@ static int saa7146_i2c_transfer(struct saa7146_dev *dev, const struct i2c_msg *m
 			if ( 0 != err) {
 				/* this one is unsatisfying: some i2c slaves on some
 				   dvb cards don't acknowledge correctly, so the saa7146
-				   thinks that an address error occured. in that case, the
+				   thinks that an address error occurred. in that case, the
 				   transaction should be retrying, even if an address error
-				   occured. analog saa7146 based cards extensively rely on
+				   occurred. analog saa7146 based cards extensively rely on
 				   i2c address probing, however, and address errors indicate that a
 				   device is really *not* there. retrying in that case
 				   increases the time the device needs to probe greatly, so
@@ -365,7 +365,7 @@ static int saa7146_i2c_transfer(struct saa7146_dev *dev, const struct i2c_msg *m
 	DEB_I2C(("transmission successful. (msg:%d).\n",err));
 out:
 	/* another bug in revision 0: the i2c-registers get uploaded randomly by other
-	   uploads, so we better clear them out before continueing */
+	   uploads, so we better clear them out before continuing */
 	if( 0 == dev->revision ) {
 		__le32 zero = 0;
 		saa7146_i2c_reset(dev);
diff --git a/drivers/media/common/tuners/mxl5005s.c b/drivers/media/common/tuners/mxl5005s.c
index 605e28b73263..0d6e09419044 100644
--- a/drivers/media/common/tuners/mxl5005s.c
+++ b/drivers/media/common/tuners/mxl5005s.c
@@ -106,7 +106,7 @@ enum {
 /* MXL5005 Tuner Register Struct */
 struct TunerReg {
 	u16 Reg_Num;	/* Tuner Register Address */
-	u16 Reg_Val;	/* Current sw programmed value waiting to be writen */
+	u16 Reg_Val;	/* Current sw programmed value waiting to be written */
 };
 
 enum {
diff --git a/drivers/media/common/tuners/tda18271.h b/drivers/media/common/tuners/tda18271.h
index 3abb221f3d07..50cfa8cebb93 100644
--- a/drivers/media/common/tuners/tda18271.h
+++ b/drivers/media/common/tuners/tda18271.h
@@ -98,7 +98,7 @@ struct tda18271_config {
 	/* output options that can be disabled */
 	enum tda18271_output_options output_opt;
 
-	/* some i2c providers cant write all 39 registers at once */
+	/* some i2c providers can't write all 39 registers at once */
 	enum tda18271_small_i2c small_i2c;
 
 	/* force rf tracking filter calibration on startup */
diff --git a/drivers/media/dvb/b2c2/flexcop-pci.c b/drivers/media/dvb/b2c2/flexcop-pci.c
index 227c0200b70a..955254090a0e 100644
--- a/drivers/media/dvb/b2c2/flexcop-pci.c
+++ b/drivers/media/dvb/b2c2/flexcop-pci.c
@@ -58,7 +58,7 @@ struct flexcop_pci {
 
 	int active_dma1_addr; /* 0 = addr0 of dma1; 1 = addr1 of dma1 */
 	u32 last_dma1_cur_pos;
-	/* position of the pointer last time the timer/packet irq occured */
+	/* position of the pointer last time the timer/packet irq occurred */
 	int count;
 	int count_prev;
 	int stream_problem;
diff --git a/drivers/media/dvb/bt8xx/dvb-bt8xx.c b/drivers/media/dvb/bt8xx/dvb-bt8xx.c
index 78fc469f0f69..1e1106dcd063 100644
--- a/drivers/media/dvb/bt8xx/dvb-bt8xx.c
+++ b/drivers/media/dvb/bt8xx/dvb-bt8xx.c
@@ -427,10 +427,10 @@ static void or51211_reset(struct dvb_frontend * fe)
 	struct dvb_bt8xx_card *bt = fe->dvb->priv;
 
 	/* RESET DEVICE
-	 * reset is controled by GPIO-0
+	 * reset is controlled by GPIO-0
 	 * when set to 0 causes reset and when to 1 for normal op
 	 * must remain reset for 128 clock cycles on a 50Mhz clock
-	 * also PRM1 PRM2 & PRM4 are controled by GPIO-1,GPIO-2 & GPIO-4
+	 * also PRM1 PRM2 & PRM4 are controlled by GPIO-1,GPIO-2 & GPIO-4
 	 * We assume that the reset has be held low long enough or we
 	 * have been reset by a power on.  When the driver is unloaded
 	 * reset set to 0 so if reloaded we have been reset.
diff --git a/drivers/media/dvb/dvb-core/dvb_frontend.c b/drivers/media/dvb/dvb-core/dvb_frontend.c
index cad6634610ea..31e2c0d45db3 100644
--- a/drivers/media/dvb/dvb-core/dvb_frontend.c
+++ b/drivers/media/dvb/dvb-core/dvb_frontend.c
@@ -1638,7 +1638,7 @@ static int dvb_frontend_ioctl_legacy(struct file *file,
 	case FE_READ_STATUS: {
 		fe_status_t* status = parg;
 
-		/* if retune was requested but hasn't occured yet, prevent
+		/* if retune was requested but hasn't occurred yet, prevent
 		 * that user get signal state from previous tuning */
 		if (fepriv->state == FESTATE_RETUNE ||
 		    fepriv->state == FESTATE_ERROR) {
@@ -1729,7 +1729,7 @@ static int dvb_frontend_ioctl_legacy(struct file *file,
 			 * Dish network legacy switches (as used by Dish500)
 			 * are controlled by sending 9-bit command words
 			 * spaced 8msec apart.
-			 * the actual command word is switch/port dependant
+			 * the actual command word is switch/port dependent
 			 * so it is up to the userspace application to send
 			 * the right command.
 			 * The command must always start with a '0' after
diff --git a/drivers/media/dvb/dvb-usb/af9005-fe.c b/drivers/media/dvb/dvb-usb/af9005-fe.c
index 199ece0d4883..6ad94745bbdd 100644
--- a/drivers/media/dvb/dvb-usb/af9005-fe.c
+++ b/drivers/media/dvb/dvb-usb/af9005-fe.c
@@ -580,7 +580,7 @@ static int af9005_fe_program_cfoe(struct dvb_usb_device *d, fe_bandwidth_t bw)
 		NS_coeff2_8k = 0x724925;
 		break;
 	default:
-		err("Invalid bandwith %d.", bw);
+		err("Invalid bandwidth %d.", bw);
 		return -EINVAL;
 	}
 
@@ -789,7 +789,7 @@ static int af9005_fe_select_bw(struct dvb_usb_device *d, fe_bandwidth_t bw)
 		temp = 2;
 		break;
 	default:
-		err("Invalid bandwith %d.", bw);
+		err("Invalid bandwidth %d.", bw);
 		return -EINVAL;
 	}
 	return af9005_write_register_bits(d, xd_g_reg_bw, reg_bw_pos,
@@ -930,7 +930,7 @@ static int af9005_fe_init(struct dvb_frontend *fe)
 	if (ret)
 		return ret;
 
-	/* init other parameters: program cfoe and select bandwith */
+	/* init other parameters: program cfoe and select bandwidth */
 	deb_info("program cfoe\n");
 	if ((ret = af9005_fe_program_cfoe(state->d, BANDWIDTH_6_MHZ)))
 		return ret;
@@ -1167,7 +1167,7 @@ static int af9005_fe_set_frontend(struct dvb_frontend *fe,
 	if (ret)
 		return ret;
 
-	/* select bandwith */
+	/* select bandwidth */
 	deb_info("select bandwidth");
 	ret = af9005_fe_select_bw(state->d, fep->u.ofdm.bandwidth);
 	if (ret)
diff --git a/drivers/media/dvb/dvb-usb/friio.h b/drivers/media/dvb/dvb-usb/friio.h
index af8d55e390fb..0f461ca10cb9 100644
--- a/drivers/media/dvb/dvb-usb/friio.h
+++ b/drivers/media/dvb/dvb-usb/friio.h
@@ -20,7 +20,7 @@
  *         Frontend:                             comtech JDVBT-90502
  *             (tuner PLL:                       tua6034, I2C addr:(0xC0 >> 1))
  *             (OFDM demodulator:                TC90502, I2C addr:(0x30 >> 1))
- *         LED x3 (+LNB) controll:               PIC 16F676
+ *         LED x3 (+LNB) control:                PIC 16F676
  *         EEPROM:                               24C08
  *
  *        (USB smart card reader:                AU9522)
diff --git a/drivers/media/dvb/dvb-usb/lmedm04.c b/drivers/media/dvb/dvb-usb/lmedm04.c
index cd26e7c1536a..f2db01212ca1 100644
--- a/drivers/media/dvb/dvb-usb/lmedm04.c
+++ b/drivers/media/dvb/dvb-usb/lmedm04.c
@@ -321,7 +321,7 @@ static int lme2510_int_read(struct dvb_usb_adapter *adap)
 	lme_int->lme_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
 
 	usb_submit_urb(lme_int->lme_urb, GFP_ATOMIC);
-	info("INT Interupt Service Started");
+	info("INT Interrupt Service Started");
 
 	return 0;
 }
@@ -482,7 +482,7 @@ static int lme2510_msg(struct dvb_usb_device *d,
 			break;
 		}
 
-		deb_info(4, "I2C From Interupt Message out(%02x) in(%02x)",
+		deb_info(4, "I2C From Interrupt Message out(%02x) in(%02x)",
 				wbuf[3], rbuf[1]);
 
 	}
@@ -632,11 +632,11 @@ static int lme2510_int_service(struct dvb_usb_adapter *adap)
 	}
 	d->rc_dev = rc;
 
-	/* Start the Interupt */
+	/* Start the Interrupt */
 	ret = lme2510_int_read(adap);
 	if (ret < 0) {
 		rc_unregister_device(rc);
-		info("INT Unable to start Interupt Service");
+		info("INT Unable to start Interrupt Service");
 		return -ENODEV;
 	}
 
@@ -1003,7 +1003,7 @@ static int dm04_lme2510_tuner(struct dvb_usb_adapter *adap)
 		return -ENODEV;
 	}
 
-	/* Start the Interupt & Remote*/
+	/* Start the Interrupt & Remote*/
 	ret = lme2510_int_service(adap);
 
 	return ret;
@@ -1171,7 +1171,7 @@ void *lme2510_exit_int(struct dvb_usb_device *d)
 		usb_kill_urb(st->lme_urb);
 		usb_free_coherent(d->udev, 5000, st->buffer,
 				  st->lme_urb->transfer_dma);
-		info("Interupt Service Stopped");
+		info("Interrupt Service Stopped");
 		rc_unregister_device(d->rc_dev);
 		info("Remote Stopped");
 	}
diff --git a/drivers/media/dvb/frontends/atbm8830.h b/drivers/media/dvb/frontends/atbm8830.h
index e8149f393300..024273374bd8 100644
--- a/drivers/media/dvb/frontends/atbm8830.h
+++ b/drivers/media/dvb/frontends/atbm8830.h
@@ -39,7 +39,7 @@ struct atbm8830_config {
 	/* parallel or serial transport stream */
 	u8 serial_ts;
 
-	/* transport stream clock output only when receving valid stream */
+	/* transport stream clock output only when receiving valid stream */
 	u8 ts_clk_gated;
 
 	/* Decoder sample TS data at rising edge of clock */
diff --git a/drivers/media/dvb/frontends/au8522_dig.c b/drivers/media/dvb/frontends/au8522_dig.c
index 65f6a36dfb21..1d572940e243 100644
--- a/drivers/media/dvb/frontends/au8522_dig.c
+++ b/drivers/media/dvb/frontends/au8522_dig.c
@@ -635,7 +635,7 @@ static int au8522_led_gpio_enable(struct au8522_state *state, int onoff)
 	struct au8522_led_config *led_config = state->config->led_cfg;
 	u8 val;
 
-	/* bail out if we cant control an LED */
+	/* bail out if we can't control an LED */
 	if (!led_config || !led_config->gpio_output ||
 	    !led_config->gpio_output_enable || !led_config->gpio_output_disable)
 		return 0;
@@ -665,7 +665,7 @@ static int au8522_led_ctrl(struct au8522_state *state, int led)
 	struct au8522_led_config *led_config = state->config->led_cfg;
 	int i, ret = 0;
 
-	/* bail out if we cant control an LED */
+	/* bail out if we can't control an LED */
 	if (!led_config || !led_config->gpio_leds ||
 	    !led_config->num_led_states || !led_config->led_states)
 		return 0;
@@ -803,7 +803,7 @@ static int au8522_led_status(struct au8522_state *state, const u16 *snr)
 	int led;
 	u16 strong;
 
-	/* bail out if we cant control an LED */
+	/* bail out if we can't control an LED */
 	if (!led_config)
 		return 0;
 
diff --git a/drivers/media/dvb/frontends/bcm3510.c b/drivers/media/dvb/frontends/bcm3510.c
index cf5e576dfdcf..8aff5868a5e1 100644
--- a/drivers/media/dvb/frontends/bcm3510.c
+++ b/drivers/media/dvb/frontends/bcm3510.c
@@ -155,7 +155,7 @@ static int bcm3510_hab_send_request(struct bcm3510_state *st, u8 *buf, int len)
 	unsigned long t;
 
 /* Check if any previous HAB request still needs to be serviced by the
- * Aquisition Processor before sending new request */
+ * Acquisition Processor before sending new request */
 	if ((ret = bcm3510_readB(st,0xa8,&v)) < 0)
 		return ret;
 	if (v.HABSTAT_a8.HABR) {
@@ -361,7 +361,7 @@ static int bcm3510_tuner_cmd(struct bcm3510_state* st,u8 bc, u16 n, u8 a)
 /* Set duration of the initial state of TUNCTL = 3.34 micro Sec */
 	c.TUNCTL_state = 0x40;
 
-/* PRESCALER DEVIDE RATIO | BC1_2_3_4; (band switch), 1stosc REFERENCE COUNTER REF_S12 and REF_S11 */
+/* PRESCALER DIVIDE RATIO | BC1_2_3_4; (band switch), 1stosc REFERENCE COUNTER REF_S12 and REF_S11 */
 	c.ctl_dat[0].ctrl.size = BITS_8;
 	c.ctl_dat[0].data      = 0x80 | bc;
 
@@ -397,7 +397,7 @@ static int bcm3510_tuner_cmd(struct bcm3510_state* st,u8 bc, u16 n, u8 a)
 	c.ctl_dat[7].ctrl.cs0  = 1;
 	c.ctl_dat[7].data      = 0x40;
 
-/* PRESCALER DEVIDE RATIO, 2ndosc REFERENCE COUNTER REF_S12 and REF_S11 */
+/* PRESCALER DIVIDE RATIO, 2ndosc REFERENCE COUNTER REF_S12 and REF_S11 */
 	c.ctl_dat[8].ctrl.size = BITS_8;
 	c.ctl_dat[8].data      = 0x80;
 
diff --git a/drivers/media/dvb/frontends/cx22700.c b/drivers/media/dvb/frontends/cx22700.c
index 5fbc0fc37ecd..0142214b0133 100644
--- a/drivers/media/dvb/frontends/cx22700.c
+++ b/drivers/media/dvb/frontends/cx22700.c
@@ -179,7 +179,7 @@ static int cx22700_set_tps (struct cx22700_state *state, struct dvb_ofdm_paramet
 	cx22700_writereg (state, 0x06, val);
 
 	cx22700_writereg (state, 0x08, 0x04 | 0x02);  /* use user tps parameters */
-	cx22700_writereg (state, 0x08, 0x04);         /* restart aquisition */
+	cx22700_writereg (state, 0x08, 0x04);         /* restart acquisition */
 
 	return 0;
 }
diff --git a/drivers/media/dvb/frontends/cx22702.c b/drivers/media/dvb/frontends/cx22702.c
index ff6c4983051c..3139558148ba 100644
--- a/drivers/media/dvb/frontends/cx22702.c
+++ b/drivers/media/dvb/frontends/cx22702.c
@@ -55,7 +55,7 @@ MODULE_PARM_DESC(debug, "Enable verbose debug messages");
 
 /* Register values to initialise the demod */
 static const u8 init_tab[] = {
-	0x00, 0x00, /* Stop aquisition */
+	0x00, 0x00, /* Stop acquisition */
 	0x0B, 0x06,
 	0x09, 0x01,
 	0x0D, 0x41,
@@ -310,7 +310,7 @@ static int cx22702_set_tps(struct dvb_frontend *fe,
 			& 0xfc);
 		cx22702_writereg(state, 0x0C,
 			(cx22702_readreg(state, 0x0C) & 0xBF) | 0x40);
-		cx22702_writereg(state, 0x00, 0x01); /* Begin aquisition */
+		cx22702_writereg(state, 0x00, 0x01); /* Begin acquisition */
 		dprintk("%s: Autodetecting\n", __func__);
 		return 0;
 	}
@@ -424,7 +424,7 @@ static int cx22702_set_tps(struct dvb_frontend *fe,
 	cx22702_writereg(state, 0x0C,
 		(cx22702_readreg(state, 0x0C) & 0xBF) | 0x40);
 
-	/* Begin channel aquisition */
+	/* Begin channel acquisition */
 	cx22702_writereg(state, 0x00, 0x01);
 
 	return 0;
diff --git a/drivers/media/dvb/frontends/cx24110.c b/drivers/media/dvb/frontends/cx24110.c
index 7a1a5bc337d8..bf9c999aa470 100644
--- a/drivers/media/dvb/frontends/cx24110.c
+++ b/drivers/media/dvb/frontends/cx24110.c
@@ -544,7 +544,7 @@ static int cx24110_set_frontend(struct dvb_frontend* fe, struct dvb_frontend_par
 	cx24110_set_inversion (state, p->inversion);
 	cx24110_set_fec (state, p->u.qpsk.fec_inner);
 	cx24110_set_symbolrate (state, p->u.qpsk.symbol_rate);
-	cx24110_writereg(state,0x04,0x05); /* start aquisition */
+	cx24110_writereg(state,0x04,0x05); /* start acquisition */
 
 	return 0;
 }
diff --git a/drivers/media/dvb/frontends/cx24113.h b/drivers/media/dvb/frontends/cx24113.h
index 5de0f7ffd8d2..01eb7b9c28f4 100644
--- a/drivers/media/dvb/frontends/cx24113.h
+++ b/drivers/media/dvb/frontends/cx24113.h
@@ -1,5 +1,5 @@
 /*
- *  Driver for Conexant CX24113/CX24128 Tuner (Satelite)
+ *  Driver for Conexant CX24113/CX24128 Tuner (Satellite)
  *
  *  Copyright (C) 2007-8 Patrick Boettcher <pb@linuxtv.org>
  *
diff --git a/drivers/media/dvb/frontends/cx24123.c b/drivers/media/dvb/frontends/cx24123.c
index fad6a990a39b..b1dd8acc607a 100644
--- a/drivers/media/dvb/frontends/cx24123.c
+++ b/drivers/media/dvb/frontends/cx24123.c
@@ -949,7 +949,7 @@ static int cx24123_set_frontend(struct dvb_frontend *fe,
 	else
 		err("it seems I don't have a tuner...");
 
-	/* Enable automatic aquisition and reset cycle */
+	/* Enable automatic acquisition and reset cycle */
 	cx24123_writereg(state, 0x03, (cx24123_readreg(state, 0x03) | 0x07));
 	cx24123_writereg(state, 0x00, 0x10);
 	cx24123_writereg(state, 0x00, 0);
diff --git a/drivers/media/dvb/frontends/drx397xD.c b/drivers/media/dvb/frontends/drx397xD.c
index a05007c80985..536f02b17338 100644
--- a/drivers/media/dvb/frontends/drx397xD.c
+++ b/drivers/media/dvb/frontends/drx397xD.c
@@ -1097,7 +1097,7 @@ static int drx397x_init(struct dvb_frontend *fe)
 	s->config.ifagc.w0A = 0x3ff;
 	s->config.ifagc.w0C = 0x388;
 
-	/* for signal strenght calculations */
+	/* for signal strength calculations */
 	s->config.ss76 = 820;
 	s->config.ss78 = 2200;
 	s->config.ss7A = 150;
diff --git a/drivers/media/dvb/frontends/mb86a16.c b/drivers/media/dvb/frontends/mb86a16.c
index 33b63235b86e..c283112051b1 100644
--- a/drivers/media/dvb/frontends/mb86a16.c
+++ b/drivers/media/dvb/frontends/mb86a16.c
@@ -1630,7 +1630,7 @@ static enum dvbfe_search mb86a16_search(struct dvb_frontend *fe,
 	state->srate = p->u.qpsk.symbol_rate / 1000;
 
 	if (!mb86a16_set_fe(state)) {
-		dprintk(verbose, MB86A16_ERROR, 1, "Succesfully acquired LOCK");
+		dprintk(verbose, MB86A16_ERROR, 1, "Successfully acquired LOCK");
 		return DVBFE_ALGO_SEARCH_SUCCESS;
 	}
 
diff --git a/drivers/media/dvb/frontends/mb86a20s.c b/drivers/media/dvb/frontends/mb86a20s.c
index cc4acd2f920d..0f867a5055fb 100644
--- a/drivers/media/dvb/frontends/mb86a20s.c
+++ b/drivers/media/dvb/frontends/mb86a20s.c
@@ -406,7 +406,7 @@ err:
 		printk(KERN_INFO "mb86a20s: Init failed. Will try again later\n");
 	} else {
 		state->need_init = false;
-		dprintk("Initialization succeded.\n");
+		dprintk("Initialization succeeded.\n");
 	}
 	return rc;
 }
diff --git a/drivers/media/dvb/frontends/mt312.c b/drivers/media/dvb/frontends/mt312.c
index 472907d43460..83e6f1a1b700 100644
--- a/drivers/media/dvb/frontends/mt312.c
+++ b/drivers/media/dvb/frontends/mt312.c
@@ -670,7 +670,7 @@ static int mt312_i2c_gate_ctrl(struct dvb_frontend *fe, int enable)
 		if (ret < 0)
 			goto error;
 
-		/* preserve this bit to not accidently shutdown ADC */
+		/* preserve this bit to not accidentally shutdown ADC */
 		val &= 0x80;
 		break;
 	}
diff --git a/drivers/media/dvb/frontends/s5h1420.c b/drivers/media/dvb/frontends/s5h1420.c
index e87b747ea99c..17f8cdf8afef 100644
--- a/drivers/media/dvb/frontends/s5h1420.c
+++ b/drivers/media/dvb/frontends/s5h1420.c
@@ -225,7 +225,7 @@ static int s5h1420_recv_slave_reply (struct dvb_frontend* fe,
 	unsigned long timeout;
 	int result = 0;
 
-	/* setup for DISEQC recieve */
+	/* setup for DISEQC receive */
 	val = s5h1420_readreg(state, 0x3b);
 	s5h1420_writereg(state, 0x3b, 0x82); /* FIXME: guess - do we need to set DIS_RDY(0x08) in receive mode? */
 	msleep(15);
diff --git a/drivers/media/dvb/frontends/stb6100.c b/drivers/media/dvb/frontends/stb6100.c
index 64673b8b64a2..bc1a8af4f6e1 100644
--- a/drivers/media/dvb/frontends/stb6100.c
+++ b/drivers/media/dvb/frontends/stb6100.c
@@ -360,7 +360,7 @@ static int stb6100_set_frequency(struct dvb_frontend *fe, u32 frequency)
 	else
 		odiv = 0;
 
-	/* VCO enabled, seach clock off as per LL3.7, 3.4.1 */
+	/* VCO enabled, search clock off as per LL3.7, 3.4.1 */
 	regs[STB6100_VCO] = 0xe0 | (odiv << STB6100_VCO_ODIV_SHIFT);
 
 	/* OSM	*/
diff --git a/drivers/media/dvb/frontends/stv0297.c b/drivers/media/dvb/frontends/stv0297.c
index 4fd7479bb62b..84d88f33275e 100644
--- a/drivers/media/dvb/frontends/stv0297.c
+++ b/drivers/media/dvb/frontends/stv0297.c
@@ -435,7 +435,7 @@ static int stv0297_set_frontend(struct dvb_frontend *fe, struct dvb_frontend_par
 		return -EINVAL;
 	}
 
-	// determine inversion dependant parameters
+	// determine inversion dependent parameters
 	inversion = p->inversion;
 	if (state->config->invert)
 		inversion = (inversion == INVERSION_ON) ? INVERSION_OFF : INVERSION_ON;
diff --git a/drivers/media/dvb/frontends/stv0367.c b/drivers/media/dvb/frontends/stv0367.c
index 4e0e6a873b8c..e57ab53e2e27 100644
--- a/drivers/media/dvb/frontends/stv0367.c
+++ b/drivers/media/dvb/frontends/stv0367.c
@@ -1328,7 +1328,7 @@ stv0367_ter_signal_type stv0367ter_lock_algo(struct stv0367_state *state)
 
 	/*guard=stv0367_readbits(state,F367TER_SYR_GUARD); */
 
-	/*supress EPQ auto for SYR_GARD 1/16 or 1/32
+	/*suppress EPQ auto for SYR_GARD 1/16 or 1/32
 	and set channel predictor in automatic */
 #if 0
 	switch (guard) {
diff --git a/drivers/media/dvb/frontends/stv0900_priv.h b/drivers/media/dvb/frontends/stv0900_priv.h
index b62b0f0a4fef..e0ea74c8e093 100644
--- a/drivers/media/dvb/frontends/stv0900_priv.h
+++ b/drivers/media/dvb/frontends/stv0900_priv.h
@@ -238,7 +238,7 @@ enum fe_stv0900_demod_mode {
 };
 
 struct stv0900_init_params{
-	u32	dmd_ref_clk;/* Refrence,Input clock for the demod in Hz */
+	u32	dmd_ref_clk;/* Reference,Input clock for the demod in Hz */
 
 	/* Demodulator Type (single demod or dual demod) */
 	enum fe_stv0900_demod_mode	demod_mode;
diff --git a/drivers/media/dvb/frontends/stv090x.c b/drivers/media/dvb/frontends/stv090x.c
index 41d0f0a6655d..52d8712411e5 100644
--- a/drivers/media/dvb/frontends/stv090x.c
+++ b/drivers/media/dvb/frontends/stv090x.c
@@ -1424,7 +1424,7 @@ static int stv090x_start_search(struct stv090x_state *state)
 			if (STV090x_WRITE_DEMOD(state, CFRLOW0, 0x00) < 0)
 				goto err;
 
-			/*enlarge the timing bandwith for Low SR*/
+			/*enlarge the timing bandwidth for Low SR*/
 			if (STV090x_WRITE_DEMOD(state, RTCS2, 0x68) < 0)
 				goto err;
 		} else {
@@ -1432,17 +1432,17 @@ static int stv090x_start_search(struct stv090x_state *state)
 			Set The carrier search up and low to auto mode */
 			if (STV090x_WRITE_DEMOD(state, CARCFG, 0xc4) < 0)
 				goto err;
-			/*reduce the timing bandwith for high SR*/
+			/*reduce the timing bandwidth for high SR*/
 			if (STV090x_WRITE_DEMOD(state, RTCS2, 0x44) < 0)
 				goto err;
 		}
 	} else {
 		/* >= Cut 3 */
 		if (state->srate <= 5000000) {
-			/* enlarge the timing bandwith for Low SR */
+			/* enlarge the timing bandwidth for Low SR */
 			STV090x_WRITE_DEMOD(state, RTCS2, 0x68);
 		} else {
-			/* reduce timing bandwith for high SR */
+			/* reduce timing bandwidth for high SR */
 			STV090x_WRITE_DEMOD(state, RTCS2, 0x44);
 		}
 
@@ -2482,7 +2482,7 @@ static int stv090x_sw_algo(struct stv090x_state *state)
 					dvbs2_fly_wheel = STV090x_GETFIELD_Px(reg, FLYWHEEL_CPT_FIELD);
 				}
 				if (dvbs2_fly_wheel < 0xd) {
-					/*FALSE lock, The demod is loosing lock */
+					/*FALSE lock, The demod is losing lock */
 					lock = 0;
 					if (trials < 2) {
 						if (state->internal->dev_ver >= 0x20) {
@@ -3202,7 +3202,7 @@ static enum stv090x_signal_state stv090x_algo(struct stv090x_state *state)
 			goto err;
 		if (STV090x_WRITE_DEMOD(state, CORRELMANT, 0x70) < 0)
 			goto err;
-		if (stv090x_set_srate(state, 1000000) < 0) /* inital srate = 1Msps */
+		if (stv090x_set_srate(state, 1000000) < 0) /* initial srate = 1Msps */
 			goto err;
 	} else {
 		/* known srate */
diff --git a/drivers/media/dvb/mantis/mantis_uart.c b/drivers/media/dvb/mantis/mantis_uart.c
index 97b889e8a341..f807c8ba26e4 100644
--- a/drivers/media/dvb/mantis/mantis_uart.c
+++ b/drivers/media/dvb/mantis/mantis_uart.c
@@ -172,7 +172,7 @@ int mantis_uart_init(struct mantis_pci *mantis)
 	mmwrite(mmread(MANTIS_UART_CTL) | MANTIS_UART_RXINT, MANTIS_UART_CTL);
 
 	schedule_work(&mantis->uart_work);
-	dprintk(MANTIS_DEBUG, 1, "UART succesfully initialized");
+	dprintk(MANTIS_DEBUG, 1, "UART successfully initialized");
 
 	return 0;
 }
diff --git a/drivers/media/dvb/ngene/ngene-core.c b/drivers/media/dvb/ngene/ngene-core.c
index 175a0f6c2a4c..ccc2d1af49d4 100644
--- a/drivers/media/dvb/ngene/ngene-core.c
+++ b/drivers/media/dvb/ngene/ngene-core.c
@@ -122,7 +122,7 @@ static void demux_tasklet(unsigned long data)
 						Cur->ngeneBuffer.SR.Flags &=
 							~0x40;
 						break;
-						/* Stop proccessing stream */
+						/* Stop processing stream */
 					}
 				} else {
 					/* We got a valid buffer,
@@ -133,7 +133,7 @@ static void demux_tasklet(unsigned long data)
 				printk(KERN_ERR DEVICE_NAME ": OOPS\n");
 				if (chan->HWState == HWSTATE_RUN) {
 					Cur->ngeneBuffer.SR.Flags &= ~0x40;
-					break;	/* Stop proccessing stream */
+					break;	/* Stop processing stream */
 				}
 			}
 			if (chan->AudioDTOUpdated) {
diff --git a/drivers/media/dvb/pluto2/pluto2.c b/drivers/media/dvb/pluto2/pluto2.c
index 6ca6713d527a..7cb79ec685f0 100644
--- a/drivers/media/dvb/pluto2/pluto2.c
+++ b/drivers/media/dvb/pluto2/pluto2.c
@@ -294,13 +294,13 @@ static void pluto_dma_end(struct pluto *pluto, unsigned int nbpackets)
 
 	/* Workaround for broken hardware:
 	 * [1] On startup NBPACKETS seems to contain an uninitialized value,
-	 *     but no packets have been transfered.
+	 *     but no packets have been transferred.
 	 * [2] Sometimes (actually very often) NBPACKETS stays at zero
-	 *     although one packet has been transfered.
+	 *     although one packet has been transferred.
 	 * [3] Sometimes (actually rarely), the card gets into an erroneous
 	 *     mode where it continuously generates interrupts, claiming it
-	 *     has recieved nbpackets>TS_DMA_PACKETS packets, but no packet
-	 *     has been transfered. Only a reset seems to solve this
+	 *     has received nbpackets>TS_DMA_PACKETS packets, but no packet
+	 *     has been transferred. Only a reset seems to solve this
 	 */
 	if ((nbpackets == 0) || (nbpackets > TS_DMA_PACKETS)) {
 		unsigned int i = 0;
@@ -332,7 +332,7 @@ static irqreturn_t pluto_irq(int irq, void *dev_id)
 	struct pluto *pluto = dev_id;
 	u32 tscr;
 
-	/* check whether an interrupt occured on this device */
+	/* check whether an interrupt occurred on this device */
 	tscr = pluto_readreg(pluto, REG_TSCR);
 	if (!(tscr & (TSCR_DE | TSCR_OVR)))
 		return IRQ_NONE;
diff --git a/drivers/media/dvb/siano/smsdvb.c b/drivers/media/dvb/siano/smsdvb.c
index b80d09b035a1..37c594f82782 100644
--- a/drivers/media/dvb/siano/smsdvb.c
+++ b/drivers/media/dvb/siano/smsdvb.c
@@ -650,7 +650,7 @@ static int smsdvb_dvbt_set_frontend(struct dvb_frontend *fe,
 		if (status & FE_HAS_LOCK)
 			return ret;
 
-		/* previous tune didnt lock - enable LNA and tune again */
+		/* previous tune didn't lock - enable LNA and tune again */
 		sms_board_lna_control(client->coredev, 1);
 	}
 
diff --git a/drivers/media/dvb/ttpci/av7110.c b/drivers/media/dvb/ttpci/av7110.c
index fc0a60f8a1e1..3d20719fce1a 100644
--- a/drivers/media/dvb/ttpci/av7110.c
+++ b/drivers/media/dvb/ttpci/av7110.c
@@ -2332,7 +2332,7 @@ static int frontend_init(struct av7110 *av7110)
  * increment. That's how the 7146 is programmed to do event
  * counting in this budget-patch.c
  * I *think* HPS setting has something to do with the phase
- * of HS but I cant be 100% sure in that.
+ * of HS but I can't be 100% sure in that.
  *
  * hardware debug note: a working budget card (including budget patch)
  * with vpeirq() interrupt setup in mode "0x90" (every 64K) will
diff --git a/drivers/media/dvb/ttpci/budget-patch.c b/drivers/media/dvb/ttpci/budget-patch.c
index 579835590690..3395d1a90516 100644
--- a/drivers/media/dvb/ttpci/budget-patch.c
+++ b/drivers/media/dvb/ttpci/budget-patch.c
@@ -539,7 +539,7 @@ static int budget_patch_attach (struct saa7146_dev* dev, struct saa7146_pci_exte
 **      increment. That's how the 7146 is programmed to do event
 **      counting in this budget-patch.c
 **      I *think* HPS setting has something to do with the phase
-**      of HS but I cant be 100% sure in that.
+**      of HS but I can't be 100% sure in that.
 
 **      hardware debug note: a working budget card (including budget patch)
 **      with vpeirq() interrupt setup in mode "0x90" (every 64K) will
diff --git a/drivers/media/dvb/ttusb-dec/ttusb_dec.c b/drivers/media/dvb/ttusb-dec/ttusb_dec.c
index fe1b8037b247..f893bffa08a3 100644
--- a/drivers/media/dvb/ttusb-dec/ttusb_dec.c
+++ b/drivers/media/dvb/ttusb-dec/ttusb_dec.c
@@ -234,7 +234,7 @@ static void ttusb_dec_handle_irq( struct urb *urb)
 		 * (with buffer[3] == 0x40) in an intervall of ~100ms.
 		 * But to handle this correctly we had to imlemenent some
 		 * kind of timer which signals a 'key up' event if no
-		 * keyrepeat signal is recieved for lets say 200ms.
+		 * keyrepeat signal is received for lets say 200ms.
 		 * this should/could be added later ...
 		 * for now lets report each signal as a key down and up*/
 		dprintk("%s:rc signal:%d\n", __func__, buffer[4]);
diff --git a/drivers/media/radio/radio-mr800.c b/drivers/media/radio/radio-mr800.c
index e6b2d085a449..b3a635b95820 100644
--- a/drivers/media/radio/radio-mr800.c
+++ b/drivers/media/radio/radio-mr800.c
@@ -99,7 +99,7 @@ devices, that would be 76 and 91.  */
 
 /*
  * Commands that device should understand
- * List isnt full and will be updated with implementation of new functions
+ * List isn't full and will be updated with implementation of new functions
  */
 #define AMRADIO_SET_FREQ	0xa4
 #define AMRADIO_SET_MUTE	0xab
diff --git a/drivers/media/radio/si4713-i2c.c b/drivers/media/radio/si4713-i2c.c
index 0fab6f8f7e24..deca2e06ff22 100644
--- a/drivers/media/radio/si4713-i2c.c
+++ b/drivers/media/radio/si4713-i2c.c
@@ -481,7 +481,7 @@ unlock:
 }
 
 /*
- * si4713_wait_stc - Waits STC interrupt and clears status bits. Usefull
+ * si4713_wait_stc - Waits STC interrupt and clears status bits. Useful
  *		     for TX_TUNE_POWER, TX_TUNE_FREQ and TX_TUNE_MEAS
  * @sdev: si4713_device structure for the device we are communicating
  * @usecs: timeout to wait for STC interrupt signal
diff --git a/drivers/media/radio/wl128x/fmdrv_common.c b/drivers/media/radio/wl128x/fmdrv_common.c
index 64454d39c0ca..5991ab60303d 100644
--- a/drivers/media/radio/wl128x/fmdrv_common.c
+++ b/drivers/media/radio/wl128x/fmdrv_common.c
@@ -352,7 +352,7 @@ static void send_tasklet(unsigned long arg)
 	if (!atomic_read(&fmdev->tx_cnt))
 		return;
 
-	/* Check, is there any timeout happenned to last transmitted packet */
+	/* Check, is there any timeout happened to last transmitted packet */
 	if ((jiffies - fmdev->last_tx_jiffies) > FM_DRV_TX_TIMEOUT) {
 		fmerr("TX timeout occurred\n");
 		atomic_set(&fmdev->tx_cnt, 1);
@@ -478,7 +478,7 @@ u32 fmc_send_cmd(struct fmdev *fmdev, u8 fm_op, u16 type, void *payload,
 		return -ETIMEDOUT;
 	}
 	if (!fmdev->resp_skb) {
-		fmerr("Reponse SKB is missing\n");
+		fmerr("Response SKB is missing\n");
 		return -EFAULT;
 	}
 	spin_lock_irqsave(&fmdev->resp_skb_lock, flags);
@@ -1494,12 +1494,17 @@ u32 fmc_prepare(struct fmdev *fmdev)
 	}
 
 	memset(&fm_st_proto, 0, sizeof(fm_st_proto));
-	fm_st_proto.type = ST_FM;
 	fm_st_proto.recv = fm_st_receive;
 	fm_st_proto.match_packet = NULL;
 	fm_st_proto.reg_complete_cb = fm_st_reg_comp_cb;
 	fm_st_proto.write = NULL; /* TI ST driver will fill write pointer */
 	fm_st_proto.priv_data = fmdev;
+	fm_st_proto.chnl_id = 0x08;
+	fm_st_proto.max_frame_size = 0xff;
+	fm_st_proto.hdr_len = 1;
+	fm_st_proto.offset_len_in_hdr = 0;
+	fm_st_proto.len_size = 1;
+	fm_st_proto.reserve = 1;
 
 	ret = st_register(&fm_st_proto);
 	if (ret == -EINPROGRESS) {
@@ -1532,7 +1537,7 @@ u32 fmc_prepare(struct fmdev *fmdev)
 		g_st_write = fm_st_proto.write;
 	} else {
 		fmerr("Failed to get ST write func pointer\n");
-		ret = st_unregister(ST_FM);
+		ret = st_unregister(&fm_st_proto);
 		if (ret < 0)
 			fmerr("st_unregister failed %d\n", ret);
 		return -EAGAIN;
@@ -1586,13 +1591,14 @@ u32 fmc_prepare(struct fmdev *fmdev)
  */
 u32 fmc_release(struct fmdev *fmdev)
 {
+	static struct st_proto_s fm_st_proto;
 	u32 ret;
 
 	if (!test_bit(FM_CORE_READY, &fmdev->flag)) {
 		fmdbg("FM Core is already down\n");
 		return 0;
 	}
-	/* Sevice pending read */
+	/* Service pending read */
 	wake_up_interruptible(&fmdev->rx.rds.read_queue);
 
 	tasklet_kill(&fmdev->tx_task);
@@ -1604,7 +1610,11 @@ u32 fmc_release(struct fmdev *fmdev)
 	fmdev->resp_comp = NULL;
 	fmdev->rx.freq = 0;
 
-	ret = st_unregister(ST_FM);
+	memset(&fm_st_proto, 0, sizeof(fm_st_proto));
+	fm_st_proto.chnl_id = 0x08;
+
+	ret = st_unregister(&fm_st_proto);
+
 	if (ret < 0)
 		fmerr("Failed to de-register FM from ST %d\n", ret);
 	else
diff --git a/drivers/media/radio/wl128x/fmdrv_common.h b/drivers/media/radio/wl128x/fmdrv_common.h
index 427c4164cece..aee243bb6630 100644
--- a/drivers/media/radio/wl128x/fmdrv_common.h
+++ b/drivers/media/radio/wl128x/fmdrv_common.h
@@ -362,7 +362,7 @@ struct fm_event_msg_hdr {
 #define FM_TX_PREEMPH_50US		0
 #define FM_TX_PREEMPH_75US		2
 
-/* FM TX antenna impedence values */
+/* FM TX antenna impedance values */
 #define FM_TX_ANT_IMP_50		0
 #define FM_TX_ANT_IMP_200		1
 #define FM_TX_ANT_IMP_500		2
diff --git a/drivers/media/rc/ene_ir.c b/drivers/media/rc/ene_ir.c
index 1ac49139158d..a43ed6c41bfc 100644
--- a/drivers/media/rc/ene_ir.c
+++ b/drivers/media/rc/ene_ir.c
@@ -520,7 +520,7 @@ static void ene_rx_disable(struct ene_device *dev)
 	dev->rx_enabled = false;
 }
 
-/* This resets the receiver. Usefull to stop stream of spaces at end of
+/* This resets the receiver. Useful to stop stream of spaces at end of
  * transmission
  */
 static void ene_rx_reset(struct ene_device *dev)
@@ -1089,7 +1089,7 @@ static int ene_probe(struct pnp_dev *pnp_dev, const struct pnp_device_id *id)
 	if (error < 0)
 		goto error;
 
-	ene_notice("driver has been succesfully loaded");
+	ene_notice("driver has been successfully loaded");
 	return 0;
 error:
 	if (dev && dev->irq >= 0)
diff --git a/drivers/media/rc/imon.c b/drivers/media/rc/imon.c
index f714e1a22c92..ebd68edf5b24 100644
--- a/drivers/media/rc/imon.c
+++ b/drivers/media/rc/imon.c
@@ -1293,7 +1293,7 @@ static void imon_pad_to_keys(struct imon_context *ictx, unsigned char *buf)
 	 * contain a position coordinate (x,y), with each component ranging
 	 * from -14 to 14. We want to down-sample this to only 4 discrete values
 	 * for up/down/left/right arrow keys. Also, when you get too close to
-	 * diagonals, it has a tendancy to jump back and forth, so lets try to
+	 * diagonals, it has a tendency to jump back and forth, so lets try to
 	 * ignore when they get too close.
 	 */
 	if (ictx->product != 0xffdc) {
diff --git a/drivers/media/rc/ir-raw.c b/drivers/media/rc/ir-raw.c
index 01f258a2a57a..11c19d8d0ee0 100644
--- a/drivers/media/rc/ir-raw.c
+++ b/drivers/media/rc/ir-raw.c
@@ -153,7 +153,7 @@ EXPORT_SYMBOL_GPL(ir_raw_event_store_edge);
  * @type:	the type of the event that has occurred
  *
  * This routine (which may be called from an interrupt context) works
- * in similiar manner to ir_raw_event_store_edge.
+ * in similar manner to ir_raw_event_store_edge.
  * This routine is intended for devices with limited internal buffer
  * It automerges samples of same type, and handles timeouts
  */
diff --git a/drivers/media/rc/ite-cir.c b/drivers/media/rc/ite-cir.c
index 9be6a830f1d2..accaf6c9789a 100644
--- a/drivers/media/rc/ite-cir.c
+++ b/drivers/media/rc/ite-cir.c
@@ -41,6 +41,7 @@
 #include <linux/bitops.h>
 #include <media/rc-core.h>
 #include <linux/pci_ids.h>
+#include <linux/delay.h>
 
 #include "ite-cir.h"
 
@@ -187,7 +188,7 @@ static void ite_decode_bytes(struct ite_dev *dev, const u8 * data, int
 	sample_period = dev->params.sample_period;
 	ldata = (unsigned long *)data;
 	size = length << 3;
-	next_one = generic_find_next_le_bit(ldata, size, 0);
+	next_one = find_next_bit_le(ldata, size, 0);
 	if (next_one > 0) {
 		ev.pulse = true;
 		ev.duration =
@@ -196,14 +197,14 @@ static void ite_decode_bytes(struct ite_dev *dev, const u8 * data, int
 	}
 
 	while (next_one < size) {
-		next_zero = generic_find_next_zero_le_bit(ldata, size, next_one + 1);
+		next_zero = find_next_zero_bit_le(ldata, size, next_one + 1);
 		ev.pulse = false;
 		ev.duration = ITE_BITS_TO_NS(next_zero - next_one, sample_period);
 		ir_raw_event_store_with_filter(dev->rdev, &ev);
 
 		if (next_zero < size) {
 			next_one =
-			    generic_find_next_le_bit(ldata,
+			    find_next_bit_le(ldata,
 						     size,
 						     next_zero + 1);
 			ev.pulse = true;
diff --git a/drivers/media/rc/keymaps/rc-lme2510.c b/drivers/media/rc/keymaps/rc-lme2510.c
index 3c1913926c1a..afae14fd152e 100644
--- a/drivers/media/rc/keymaps/rc-lme2510.c
+++ b/drivers/media/rc/keymaps/rc-lme2510.c
@@ -55,7 +55,7 @@ static struct rc_map_table lme2510_rc[] = {
 	{ 0xff40fb04, KEY_MEDIA_REPEAT}, /* Recall */
 	{ 0xff40e51a, KEY_PAUSE }, /* Timeshift */
 	{ 0xff40fd02, KEY_VOLUMEUP }, /* 2 x -/+ Keys not marked */
-	{ 0xff40f906, KEY_VOLUMEDOWN }, /* Volumne defined as right hand*/
+	{ 0xff40f906, KEY_VOLUMEDOWN }, /* Volume defined as right hand*/
 	{ 0xff40fe01, KEY_CHANNELUP },
 	{ 0xff40fa05, KEY_CHANNELDOWN },
 	{ 0xff40eb14, KEY_ZOOM },
@@ -76,7 +76,7 @@ static struct rc_map_table lme2510_rc[] = {
 	{ 0xff00bb44, KEY_MEDIA_REPEAT}, /* Recall */
 	{ 0xff00b54a, KEY_PAUSE }, /* Timeshift */
 	{ 0xff00b847, KEY_VOLUMEUP }, /* 2 x -/+ Keys not marked */
-	{ 0xff00bc43, KEY_VOLUMEDOWN }, /* Volumne defined as right hand*/
+	{ 0xff00bc43, KEY_VOLUMEDOWN }, /* Volume defined as right hand*/
 	{ 0xff00b946, KEY_CHANNELUP },
 	{ 0xff00bf40, KEY_CHANNELDOWN },
 	{ 0xff00f708, KEY_ZOOM },
diff --git a/drivers/media/rc/keymaps/rc-msi-tvanywhere.c b/drivers/media/rc/keymaps/rc-msi-tvanywhere.c
index 18b37facb0dd..fdd213ff1adf 100644
--- a/drivers/media/rc/keymaps/rc-msi-tvanywhere.c
+++ b/drivers/media/rc/keymaps/rc-msi-tvanywhere.c
@@ -29,7 +29,7 @@ static struct rc_map_table msi_tvanywhere[] = {
 
 	{ 0x0c, KEY_MUTE },
 	{ 0x0f, KEY_SCREEN },		/* Full Screen */
-	{ 0x10, KEY_FN },		/* Funtion */
+	{ 0x10, KEY_FN },		/* Function */
 	{ 0x11, KEY_TIME },		/* Time shift */
 	{ 0x12, KEY_POWER },
 	{ 0x13, KEY_MEDIA },		/* MTS */
diff --git a/drivers/media/rc/keymaps/rc-norwood.c b/drivers/media/rc/keymaps/rc-norwood.c
index f1c1281fbc17..f9f2fa2819b8 100644
--- a/drivers/media/rc/keymaps/rc-norwood.c
+++ b/drivers/media/rc/keymaps/rc-norwood.c
@@ -49,7 +49,7 @@ static struct rc_map_table norwood[] = {
 	{ 0x37, KEY_PLAY },		/* Play                */
 	{ 0x36, KEY_PAUSE },		/* Pause               */
 	{ 0x2b, KEY_STOP },		/* Stop                */
-	{ 0x67, KEY_FASTFORWARD },	/* Foward              */
+	{ 0x67, KEY_FASTFORWARD },	/* Forward              */
 	{ 0x66, KEY_REWIND },		/* Rewind              */
 	{ 0x3e, KEY_SEARCH },		/* Auto Scan           */
 	{ 0x2e, KEY_CAMERA },		/* Capture Video       */
diff --git a/drivers/media/rc/rc-main.c b/drivers/media/rc/rc-main.c
index 5ac1baf45c8e..f53f9c68d38d 100644
--- a/drivers/media/rc/rc-main.c
+++ b/drivers/media/rc/rc-main.c
@@ -255,7 +255,7 @@ static unsigned int ir_update_mapping(struct rc_dev *dev,
  * @rc_map:	scancode table to be searched
  * @scancode:	the desired scancode
  * @resize:	controls whether we allowed to resize the table to
- *		accomodate not yet present scancodes
+ *		accommodate not yet present scancodes
  * @return:	index of the mapping containing scancode in question
  *		or -1U in case of failure.
  *
@@ -1037,7 +1037,7 @@ int rc_register_device(struct rc_dev *dev)
 		goto out_table;
 
 	/*
-	 * Default delay of 250ms is too short for some protocols, expecially
+	 * Default delay of 250ms is too short for some protocols, especially
 	 * since the timeout is currently set to 250ms. Increase it to 500ms,
 	 * to avoid wrong repetition of the keycodes. Note that this must be
 	 * set after the call to input_register_device().
diff --git a/drivers/media/video/au0828/au0828-video.c b/drivers/media/video/au0828/au0828-video.c
index 6ad83a15d073..c03eb29a9ee6 100644
--- a/drivers/media/video/au0828/au0828-video.c
+++ b/drivers/media/video/au0828/au0828-video.c
@@ -502,7 +502,7 @@ static inline void vbi_get_next_buf(struct au0828_dmaqueue *dma_q,
 
 	/* Get the next buffer */
 	*buf = list_entry(dma_q->active.next, struct au0828_buffer, vb.queue);
-	/* Cleans up buffer - Usefull for testing for frame/URB loss */
+	/* Cleans up buffer - Useful for testing for frame/URB loss */
 	outp = videobuf_to_vmalloc(&(*buf)->vb);
 	memset(outp, 0x00, (*buf)->vb.size);
 
diff --git a/drivers/media/video/bt8xx/bttv-cards.c b/drivers/media/video/bt8xx/bttv-cards.c
index 242f0d512238..3c9e6c7e7b52 100644
--- a/drivers/media/video/bt8xx/bttv-cards.c
+++ b/drivers/media/video/bt8xx/bttv-cards.c
@@ -2244,8 +2244,8 @@ struct tvcard bttv_tvcards[] = {
 	},
 	[BTTV_BOARD_PICOLO_TETRA_CHIP] = {
 		/*Eric DEBIEF <debief@telemsa.com>*/
-		/*EURESYS Picolo Tetra : 4 Conexant Fusion 878A, no audio, video input set with analog multiplexers GPIO controled*/
-		/* adds picolo_tetra_muxsel(), picolo_tetra_init(), the folowing declaration strucure, and #define BTTV_BOARD_PICOLO_TETRA_CHIP*/
+		/*EURESYS Picolo Tetra : 4 Conexant Fusion 878A, no audio, video input set with analog multiplexers GPIO controlled*/
+		/* adds picolo_tetra_muxsel(), picolo_tetra_init(), the following declaration strucure, and #define BTTV_BOARD_PICOLO_TETRA_CHIP*/
 		/*0x79 in bttv.h*/
 		.name           = "Euresys Picolo Tetra",
 		.video_inputs   = 4,
@@ -4567,7 +4567,7 @@ static void picolo_tetra_muxsel (struct bttv* btv, unsigned int input)
  * at one input while the monitor is looking at another.
  *
  * Since I've couldn't be bothered figuring out how to add an
- * independant muxsel for the monitor bus, I've just set it to
+ * independent muxsel for the monitor bus, I've just set it to
  * whatever the card is looking at.
  *
  *  OUT0 of the TDA8540's is connected to MUX0         (0x03)
diff --git a/drivers/media/video/bt8xx/bttv-gpio.c b/drivers/media/video/bt8xx/bttv-gpio.c
index fd604d32bbb9..13ce72c04b33 100644
--- a/drivers/media/video/bt8xx/bttv-gpio.c
+++ b/drivers/media/video/bt8xx/bttv-gpio.c
@@ -3,7 +3,7 @@
     bttv-gpio.c  --  gpio sub drivers
 
     sysfs-based sub driver interface for bttv
-    mainly intented for gpio access
+    mainly intended for gpio access
 
 
     Copyright (C) 1996,97,98 Ralph  Metzler (rjkm@thp.uni-koeln.de)
diff --git a/drivers/media/video/cafe_ccic.c b/drivers/media/video/cafe_ccic.c
index 55ffd60ffa7f..664703398493 100644
--- a/drivers/media/video/cafe_ccic.c
+++ b/drivers/media/video/cafe_ccic.c
@@ -383,7 +383,7 @@ static int cafe_smbus_write_data(struct cafe_camera *cam,
 	 * causes the device to die.
 	 * Use a busy-wait because we often send a large quantity of small
 	 * commands at-once; using msleep() would cause a lot of context
-	 * switches which take longer than 2ms, resulting in a noticable
+	 * switches which take longer than 2ms, resulting in a noticeable
 	 * boot-time and capture-start delays.
 	 */
 	mdelay(2);
diff --git a/drivers/media/video/cx18/cx18-av-core.h b/drivers/media/video/cx18/cx18-av-core.h
index 188c9c3d2db1..e9c69d9c9e4a 100644
--- a/drivers/media/video/cx18/cx18-av-core.h
+++ b/drivers/media/video/cx18/cx18-av-core.h
@@ -109,7 +109,7 @@ struct cx18_av_state {
 	int is_initialized;
 
 	/*
-	 * The VBI slicer starts operating and counting lines, begining at
+	 * The VBI slicer starts operating and counting lines, beginning at
 	 * slicer line count of 1, at D lines after the deassertion of VRESET.
 	 * This staring field line, S, is 6 (& 319) or 10 (& 273) for 625 or 525
 	 * line systems respectively.  Sliced ancillary data captured on VBI
diff --git a/drivers/media/video/cx18/cx18-ioctl.c b/drivers/media/video/cx18/cx18-ioctl.c
index 86c30b9963e5..4f041c033c54 100644
--- a/drivers/media/video/cx18/cx18-ioctl.c
+++ b/drivers/media/video/cx18/cx18-ioctl.c
@@ -312,7 +312,7 @@ static int cx18_s_fmt_vbi_cap(struct file *file, void *fh,
 
 	/*
 	 * Set the digitizer registers for raw active VBI.
-	 * Note cx18_av_vbi_wipes out alot of the passed in fmt under valid
+	 * Note cx18_av_vbi_wipes out a lot of the passed in fmt under valid
 	 * calling conditions
 	 */
 	ret = v4l2_subdev_call(cx->sd_av, vbi, s_raw_fmt, &fmt->fmt.vbi);
diff --git a/drivers/media/video/cx18/cx18-vbi.c b/drivers/media/video/cx18/cx18-vbi.c
index 582227522cf0..6d3121ff45a2 100644
--- a/drivers/media/video/cx18/cx18-vbi.c
+++ b/drivers/media/video/cx18/cx18-vbi.c
@@ -29,7 +29,7 @@
 /*
  * Raster Reference/Protection (RP) bytes, used in Start/End Active
  * Video codes emitted from the digitzer in VIP 1.x mode, that flag the start
- * of VBI sample or VBI ancilliary data regions in the digitial ratser line.
+ * of VBI sample or VBI ancillary data regions in the digitial ratser line.
  *
  * Task FieldEven VerticalBlank HorizontalBlank 0 0 0 0
  */
diff --git a/drivers/media/video/cx231xx/cx231xx-avcore.c b/drivers/media/video/cx231xx/cx231xx-avcore.c
index 62843d39817c..280df43ca446 100644
--- a/drivers/media/video/cx231xx/cx231xx-avcore.c
+++ b/drivers/media/video/cx231xx/cx231xx-avcore.c
@@ -2577,7 +2577,7 @@ int cx231xx_initialize_stream_xfer(struct cx231xx *dev, u32 media_type)
 			break;
 
 		case 6:	/* ts1 parallel mode */
-			cx231xx_info("%s: set ts1 parrallel mode registers\n",
+			cx231xx_info("%s: set ts1 parallel mode registers\n",
 				     __func__);
 			status = cx231xx_mode_register(dev, TS_MODE_REG, 0x100);
 			status = cx231xx_mode_register(dev, TS1_CFG_REG, 0x400);
diff --git a/drivers/media/video/cx231xx/cx231xx-vbi.c b/drivers/media/video/cx231xx/cx231xx-vbi.c
index 1d914488dbb3..1c7a4daafecf 100644
--- a/drivers/media/video/cx231xx/cx231xx-vbi.c
+++ b/drivers/media/video/cx231xx/cx231xx-vbi.c
@@ -631,7 +631,7 @@ static inline void get_next_vbi_buf(struct cx231xx_dmaqueue *dma_q,
 	/* Get the next buffer */
 	*buf = list_entry(dma_q->active.next, struct cx231xx_buffer, vb.queue);
 
-	/* Cleans up buffer - Usefull for testing for frame/URB loss */
+	/* Cleans up buffer - Useful for testing for frame/URB loss */
 	outp = videobuf_to_vmalloc(&(*buf)->vb);
 	memset(outp, 0, (*buf)->vb.size);
 
diff --git a/drivers/media/video/cx231xx/cx231xx-video.c b/drivers/media/video/cx231xx/cx231xx-video.c
index ffd5af914c44..a69c24d8db06 100644
--- a/drivers/media/video/cx231xx/cx231xx-video.c
+++ b/drivers/media/video/cx231xx/cx231xx-video.c
@@ -309,7 +309,7 @@ static inline void get_next_buf(struct cx231xx_dmaqueue *dma_q,
 	/* Get the next buffer */
 	*buf = list_entry(dma_q->active.next, struct cx231xx_buffer, vb.queue);
 
-	/* Cleans up buffer - Usefull for testing for frame/URB loss */
+	/* Cleans up buffer - Useful for testing for frame/URB loss */
 	outp = videobuf_to_vmalloc(&(*buf)->vb);
 	memset(outp, 0, (*buf)->vb.size);
 
diff --git a/drivers/media/video/cx23885/cimax2.c b/drivers/media/video/cx23885/cimax2.c
index 209b971bd267..c9f15d6dec40 100644
--- a/drivers/media/video/cx23885/cimax2.c
+++ b/drivers/media/video/cx23885/cimax2.c
@@ -449,7 +449,7 @@ int netup_ci_init(struct cx23885_tsport *port)
 		0x04, /* ack active low */
 		0x00, /* LOCK = 0 */
 		0x33, /* serial mode, rising in, rising out, MSB first*/
-		0x31, /* syncronization */
+		0x31, /* synchronization */
 	};
 	int ret;
 
diff --git a/drivers/media/video/cx23885/cx23885.h b/drivers/media/video/cx23885/cx23885.h
index 8db2797bc7c3..c186473fc570 100644
--- a/drivers/media/video/cx23885/cx23885.h
+++ b/drivers/media/video/cx23885/cx23885.h
@@ -214,7 +214,7 @@ struct cx23885_board {
 
 	/* Vendors can and do run the PCIe bridge at different
 	 * clock rates, driven physically by crystals on the PCBs.
-	 * The core has to accomodate this. This allows the user
+	 * The core has to accommodate this. This allows the user
 	 * to add new boards with new frequencys. The value is
 	 * expressed in Hz.
 	 *
diff --git a/drivers/media/video/cx25840/cx25840-core.c b/drivers/media/video/cx25840/cx25840-core.c
index 35796e035247..b7ee2ae70583 100644
--- a/drivers/media/video/cx25840/cx25840-core.c
+++ b/drivers/media/video/cx25840/cx25840-core.c
@@ -2,7 +2,7 @@
  *
  * Copyright (C) 2004 Ulf Eklund
  *
- * Based on the saa7115 driver and on the first verison of Chris Kennedy's
+ * Based on the saa7115 driver and on the first version of Chris Kennedy's
  * cx25840 driver.
  *
  * Changes by Tyler Trafford <tatrafford@comcast.net>
@@ -445,7 +445,7 @@ static void cx25840_initialize(struct i2c_client *client)
 	cx25840_write(client, 0x918, 0xa0);
 	cx25840_write(client, 0x919, 0x01);
 
-	/* stereo prefered */
+	/* stereo preferred */
 	cx25840_write(client, 0x809, 0x04);
 	/* AC97 shift */
 	cx25840_write(client, 0x8cf, 0x0f);
@@ -546,7 +546,7 @@ static void cx23885_initialize(struct i2c_client *client)
 	 * Aux PLL
 	 * Initial setup for audio sample clock:
 	 * 48 ksps, 16 bits/sample, x160 multiplier = 122.88 MHz
-	 * Intial I2S output/master clock(?):
+	 * Initial I2S output/master clock(?):
 	 * 48 ksps, 16 bits/sample, x16 multiplier = 12.288 MHz
 	 */
 	switch (state->id) {
@@ -903,7 +903,7 @@ static void input_change(struct i2c_client *client)
 	} else if (std & V4L2_STD_PAL) {
 		/* Autodetect audio standard and audio system */
 		cx25840_write(client, 0x808, 0xff);
-		/* Since system PAL-L is pretty much non-existant and
+		/* Since system PAL-L is pretty much non-existent and
 		   not used by any public broadcast network, force
 		   6.5 MHz carrier to be interpreted as System DK,
 		   this avoids DK audio detection instability */
@@ -1851,7 +1851,7 @@ static u32 get_cx2388x_ident(struct i2c_client *client)
 			ret = V4L2_IDENT_CX23885_AV;
 		} else {
 			/* CX23887 has a broken DIF, but the registers
-			 * appear valid (but unsed), good enough to detect. */
+			 * appear valid (but unused), good enough to detect. */
 			ret = V4L2_IDENT_CX23887_AV;
 		}
 	} else if (cx25840_read4(client, 0x300) & 0x0fffffff) {
diff --git a/drivers/media/video/davinci/dm644x_ccdc.c b/drivers/media/video/davinci/dm644x_ccdc.c
index 490aafb34e2f..c8b32c1c7386 100644
--- a/drivers/media/video/davinci/dm644x_ccdc.c
+++ b/drivers/media/video/davinci/dm644x_ccdc.c
@@ -258,7 +258,7 @@ static int ccdc_update_raw_params(struct ccdc_config_params_raw *raw_params)
 	/*
 	 * Allocate memory for FPC table if current
 	 * FPC table buffer is not big enough to
-	 * accomodate FPC Number requested
+	 * accommodate FPC Number requested
 	 */
 	if (raw_params->fault_pxl.fp_num != config_params->fault_pxl.fp_num) {
 		if (fpc_physaddr != NULL) {
@@ -436,7 +436,7 @@ void ccdc_config_ycbcr(void)
 
 	/*
 	 * configure the horizontal line offset. This should be a
-	 * on 32 byte bondary. So clear LSB 5 bits
+	 * on 32 byte boundary. So clear LSB 5 bits
 	 */
 	regw(((params->win.width * 2  + 31) & ~0x1f), CCDC_HSIZE_OFF);
 
diff --git a/drivers/media/video/davinci/vpfe_capture.c b/drivers/media/video/davinci/vpfe_capture.c
index 71e961e53a56..5b38fc93ff28 100644
--- a/drivers/media/video/davinci/vpfe_capture.c
+++ b/drivers/media/video/davinci/vpfe_capture.c
@@ -1691,7 +1691,7 @@ static int vpfe_s_crop(struct file *file, void *priv,
 		goto unlock_out;
 	}
 
-	/* adjust the width to 16 pixel boundry */
+	/* adjust the width to 16 pixel boundary */
 	crop->c.width = ((crop->c.width + 15) & ~0xf);
 
 	/* make sure parameters are valid */
diff --git a/drivers/media/video/em28xx/em28xx-video.c b/drivers/media/video/em28xx/em28xx-video.c
index a83131bd00b2..7b6461d2d1ff 100644
--- a/drivers/media/video/em28xx/em28xx-video.c
+++ b/drivers/media/video/em28xx/em28xx-video.c
@@ -377,7 +377,7 @@ static inline void get_next_buf(struct em28xx_dmaqueue *dma_q,
 	/* Get the next buffer */
 	*buf = list_entry(dma_q->active.next, struct em28xx_buffer, vb.queue);
 
-	/* Cleans up buffer - Usefull for testing for frame/URB loss */
+	/* Cleans up buffer - Useful for testing for frame/URB loss */
 	outp = videobuf_to_vmalloc(&(*buf)->vb);
 	memset(outp, 0, (*buf)->vb.size);
 
@@ -404,7 +404,7 @@ static inline void vbi_get_next_buf(struct em28xx_dmaqueue *dma_q,
 
 	/* Get the next buffer */
 	*buf = list_entry(dma_q->active.next, struct em28xx_buffer, vb.queue);
-	/* Cleans up buffer - Usefull for testing for frame/URB loss */
+	/* Cleans up buffer - Useful for testing for frame/URB loss */
 	outp = videobuf_to_vmalloc(&(*buf)->vb);
 	memset(outp, 0x00, (*buf)->vb.size);
 
diff --git a/drivers/media/video/gspca/gl860/gl860-mi1320.c b/drivers/media/video/gspca/gl860/gl860-mi1320.c
index c276a7debdec..b57160e04866 100644
--- a/drivers/media/video/gspca/gl860/gl860-mi1320.c
+++ b/drivers/media/video/gspca/gl860/gl860-mi1320.c
@@ -201,7 +201,7 @@ void mi1320_init_settings(struct gspca_dev *gspca_dev)
 	sd->vmax.backlight  =  2;
 	sd->vmax.brightness =  8;
 	sd->vmax.sharpness  =  7;
-	sd->vmax.contrast   =  0; /* 10 but not working with tihs driver */
+	sd->vmax.contrast   =  0; /* 10 but not working with this driver */
 	sd->vmax.gamma      = 40;
 	sd->vmax.hue        =  5 + 1;
 	sd->vmax.saturation =  8;
diff --git a/drivers/media/video/gspca/gspca.c b/drivers/media/video/gspca/gspca.c
index 9c6a643caf01..e526aa3dedaf 100644
--- a/drivers/media/video/gspca/gspca.c
+++ b/drivers/media/video/gspca/gspca.c
@@ -857,7 +857,7 @@ static int gspca_init_transfer(struct gspca_dev *gspca_dev)
 		}
 
 		/* the bandwidth is not wide enough
-		 * negociate or try a lower alternate setting */
+		 * negotiate or try a lower alternate setting */
 		PDEBUG(D_ERR|D_STREAM,
 			"bandwidth not wide enough - trying again");
 		msleep(20);	/* wait for kill complete */
@@ -2346,7 +2346,7 @@ void gspca_disconnect(struct usb_interface *intf)
 	usb_set_intfdata(intf, NULL);
 
 	/* release the device */
-	/* (this will call gspca_release() immediatly or on last close) */
+	/* (this will call gspca_release() immediately or on last close) */
 	video_unregister_device(&gspca_dev->vdev);
 
 /*	PDEBUG(D_PROBE, "disconnect complete"); */
diff --git a/drivers/media/video/gspca/mars.c b/drivers/media/video/gspca/mars.c
index cb4d0bf0d784..0196209a948a 100644
--- a/drivers/media/video/gspca/mars.c
+++ b/drivers/media/video/gspca/mars.c
@@ -361,7 +361,7 @@ static int sd_start(struct gspca_dev *gspca_dev)
 		mi_w(gspca_dev, i + 1, mi_data[i]);
 
 	data[0] = 0x00;
-	data[1] = 0x4d;		/* ISOC transfering enable... */
+	data[1] = 0x4d;		/* ISOC transferring enable... */
 	reg_w(gspca_dev, 2);
 
 	gspca_dev->ctrl_inac = 0; /* activate the illuminator controls */
diff --git a/drivers/media/video/gspca/mr97310a.c b/drivers/media/video/gspca/mr97310a.c
index 3884c9d300c5..97e507967434 100644
--- a/drivers/media/video/gspca/mr97310a.c
+++ b/drivers/media/video/gspca/mr97310a.c
@@ -469,7 +469,7 @@ static void lcd_stop(struct gspca_dev *gspca_dev)
 static int isoc_enable(struct gspca_dev *gspca_dev)
 {
 	gspca_dev->usb_buf[0] = 0x00;
-	gspca_dev->usb_buf[1] = 0x4d;  /* ISOC transfering enable... */
+	gspca_dev->usb_buf[1] = 0x4d;  /* ISOC transferring enable... */
 	return mr_write(gspca_dev, 2);
 }
 
diff --git a/drivers/media/video/gspca/ov519.c b/drivers/media/video/gspca/ov519.c
index fd1b6082c96d..36a46fc78734 100644
--- a/drivers/media/video/gspca/ov519.c
+++ b/drivers/media/video/gspca/ov519.c
@@ -381,7 +381,7 @@ static const struct v4l2_pix_format ov519_sif_mode[] = {
    larger then necessary, however they need to be this big as the ov511 /
    ov518 always fills the entire isoc frame, using 0 padding bytes when
    it doesn't have any data. So with low framerates the amount of data
-   transfered can become quite large (libv4l will remove all the 0 padding
+   transferred can become quite large (libv4l will remove all the 0 padding
    in userspace). */
 static const struct v4l2_pix_format ov518_vga_mode[] = {
 	{320, 240, V4L2_PIX_FMT_OV518, V4L2_FIELD_NONE,
@@ -4368,7 +4368,7 @@ static void ov511_pkt_scan(struct gspca_dev *gspca_dev,
 				gspca_dev->last_packet_type = DISCARD_PACKET;
 				return;
 			}
-			/* Add 11 byte footer to frame, might be usefull */
+			/* Add 11 byte footer to frame, might be useful */
 			gspca_frame_add(gspca_dev, LAST_PACKET, in, 11);
 			return;
 		} else {
diff --git a/drivers/media/video/gspca/sonixb.c b/drivers/media/video/gspca/sonixb.c
index 5a08738fba30..146b459b08d5 100644
--- a/drivers/media/video/gspca/sonixb.c
+++ b/drivers/media/video/gspca/sonixb.c
@@ -827,7 +827,7 @@ static void setexposure(struct gspca_dev *gspca_dev)
 		   possible to use less exposure then what the fps maximum
 		   allows by setting register 10. register 10 configures the
 		   actual exposure as quotient of the full exposure, with 0
-		   being no exposure at all (not very usefull) and reg10_max
+		   being no exposure at all (not very useful) and reg10_max
 		   being max exposure possible at that framerate.
 
 		   The code maps our 0 - 510 ms exposure ctrl to these 2
diff --git a/drivers/media/video/gspca/spca500.c b/drivers/media/video/gspca/spca500.c
index 45552c3ff8d9..3e76951e3c19 100644
--- a/drivers/media/video/gspca/spca500.c
+++ b/drivers/media/video/gspca/spca500.c
@@ -607,7 +607,7 @@ static void spca500_reinit(struct gspca_dev *gspca_dev)
 	reg_w(gspca_dev, 0x00, 0x8880, 2);
 	/* family cam Quicksmart stuff */
 	reg_w(gspca_dev, 0x00, 0x800a, 0x00);
-	/* Set agc transfer: synced inbetween frames */
+	/* Set agc transfer: synced between frames */
 	reg_w(gspca_dev, 0x00, 0x820f, 0x01);
 	/* Init SDRAM - needed for SDRAM access */
 	reg_w(gspca_dev, 0x00, 0x870a, 0x04);
@@ -831,7 +831,7 @@ static int sd_start(struct gspca_dev *gspca_dev)
 
 		/* familycam Quicksmart pocketDV stuff */
 		reg_w(gspca_dev, 0x00, 0x800a, 0x00);
-		/* Set agc transfer: synced inbetween frames */
+		/* Set agc transfer: synced between frames */
 		reg_w(gspca_dev, 0x00, 0x820f, 0x01);
 		/* Init SDRAM - needed for SDRAM access */
 		reg_w(gspca_dev, 0x00, 0x870a, 0x04);
diff --git a/drivers/media/video/gspca/spca508.c b/drivers/media/video/gspca/spca508.c
index 348319371523..41dce49fb43d 100644
--- a/drivers/media/video/gspca/spca508.c
+++ b/drivers/media/video/gspca/spca508.c
@@ -592,7 +592,7 @@ static const u16 spca508_sightcam_init_data[][2] = {
 /* This line seems to setup the frame/canvas */
 	{0x000f, 0x8402},
 
-/* Theese 6 lines are needed to startup the webcam */
+/* These 6 lines are needed to startup the webcam */
 	{0x0090, 0x8110},
 	{0x0001, 0x8114},
 	{0x0001, 0x8114},
diff --git a/drivers/media/video/gspca/sq905.c b/drivers/media/video/gspca/sq905.c
index 2e9c06175192..5ba96aff2252 100644
--- a/drivers/media/video/gspca/sq905.c
+++ b/drivers/media/video/gspca/sq905.c
@@ -22,7 +22,7 @@
  * History and Acknowledgments
  *
  * The original Linux driver for SQ905 based cameras was written by
- * Marcell Lengyel and furter developed by many other contributers
+ * Marcell Lengyel and furter developed by many other contributors
  * and is available from http://sourceforge.net/projects/sqcam/
  *
  * This driver takes advantage of the reverse engineering work done for
diff --git a/drivers/media/video/gspca/stv06xx/stv06xx_hdcs.c b/drivers/media/video/gspca/stv06xx/stv06xx_hdcs.c
index 17531b41a073..b8156855f2b7 100644
--- a/drivers/media/video/gspca/stv06xx/stv06xx_hdcs.c
+++ b/drivers/media/video/gspca/stv06xx/stv06xx_hdcs.c
@@ -569,7 +569,7 @@ static int hdcs_init(struct sd *sd)
 	if (err < 0)
 		return err;
 
-	/* Enable continous frame capture, bit 2: stop when frame complete */
+	/* Enable continuous frame capture, bit 2: stop when frame complete */
 	err = stv06xx_write_sensor(sd, HDCS_REG_CONFIG(sd), BIT(3));
 	if (err < 0)
 		return err;
diff --git a/drivers/media/video/hexium_gemini.c b/drivers/media/video/hexium_gemini.c
index cdf8b191f710..cbc505a2fc29 100644
--- a/drivers/media/video/hexium_gemini.c
+++ b/drivers/media/video/hexium_gemini.c
@@ -261,7 +261,7 @@ static int vidioc_s_input(struct file *file, void *fh, unsigned int input)
 
 /* the saa7146 provides some controls (brightness, contrast, saturation)
    which gets registered *after* this function. because of this we have
-   to return with a value != 0 even if the function succeded.. */
+   to return with a value != 0 even if the function succeeded.. */
 static int vidioc_queryctrl(struct file *file, void *fh, struct v4l2_queryctrl *qc)
 {
 	struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
diff --git a/drivers/media/video/ivtv/ivtv-firmware.c b/drivers/media/video/ivtv/ivtv-firmware.c
index 4df01947a7df..14a1cea1d70d 100644
--- a/drivers/media/video/ivtv/ivtv-firmware.c
+++ b/drivers/media/video/ivtv/ivtv-firmware.c
@@ -179,7 +179,7 @@ static volatile struct ivtv_mailbox __iomem *ivtv_search_mailbox(const volatile
 {
 	int i;
 
-	/* mailbox is preceeded by a 16 byte 'magic cookie' starting at a 256-byte
+	/* mailbox is preceded by a 16 byte 'magic cookie' starting at a 256-byte
 	   address boundary */
 	for (i = 0; i < size; i += 0x100) {
 		if (readl(mem + i)      == 0x12345678 &&
@@ -377,7 +377,7 @@ int ivtv_firmware_check(struct ivtv *itv, char *where)
 			  "Reloading\n", where);
 		res = ivtv_firmware_restart(itv);
 		/*
-		 * Even if restarted ok, still signal a problem had occured.
+		 * Even if restarted ok, still signal a problem had occurred.
 		 * The caller can come through this function again to check
 		 * if things are really ok after the restart.
 		 */
diff --git a/drivers/media/video/ivtv/ivtvfb.c b/drivers/media/video/ivtv/ivtvfb.c
index f0316d02f09f..17247451c693 100644
--- a/drivers/media/video/ivtv/ivtvfb.c
+++ b/drivers/media/video/ivtv/ivtvfb.c
@@ -1080,7 +1080,7 @@ static int ivtvfb_init_vidmode(struct ivtv *itv)
 		kmalloc(sizeof(u32) * 16, GFP_KERNEL|__GFP_NOWARN);
 
 	if (!oi->ivtvfb_info.pseudo_palette) {
-		IVTVFB_ERR("abort, unable to alloc pseudo pallete\n");
+		IVTVFB_ERR("abort, unable to alloc pseudo palette\n");
 		return -ENOMEM;
 	}
 
diff --git a/drivers/media/video/msp3400-driver.c b/drivers/media/video/msp3400-driver.c
index b1763ac93ab3..8126622fb4f5 100644
--- a/drivers/media/video/msp3400-driver.c
+++ b/drivers/media/video/msp3400-driver.c
@@ -69,7 +69,7 @@ MODULE_LICENSE("GPL");
 /* module parameters */
 static int opmode   = OPMODE_AUTO;
 int msp_debug;		 /* msp_debug output */
-int msp_once;		 /* no continous stereo monitoring */
+int msp_once;		 /* no continuous stereo monitoring */
 int msp_amsound;	 /* hard-wire AM sound at 6.5 Hz (france),
 			    the autoscan seems work well only with FM... */
 int msp_standard = 1;    /* Override auto detect of audio msp_standard,
@@ -551,7 +551,7 @@ static int msp_log_status(struct v4l2_subdev *sd)
 	switch (state->mode) {
 		case MSP_MODE_AM_DETECT: p = "AM (for carrier detect)"; break;
 		case MSP_MODE_FM_RADIO: p = "FM Radio"; break;
-		case MSP_MODE_FM_TERRA: p = "Terrestial FM-mono/stereo"; break;
+		case MSP_MODE_FM_TERRA: p = "Terrestrial FM-mono/stereo"; break;
 		case MSP_MODE_FM_SAT: p = "Satellite FM-mono"; break;
 		case MSP_MODE_FM_NICAM1: p = "NICAM/FM (B/G, D/K)"; break;
 		case MSP_MODE_FM_NICAM2: p = "NICAM/FM (I)"; break;
diff --git a/drivers/media/video/msp3400-kthreads.c b/drivers/media/video/msp3400-kthreads.c
index b376fcdee652..80387e2c3eca 100644
--- a/drivers/media/video/msp3400-kthreads.c
+++ b/drivers/media/video/msp3400-kthreads.c
@@ -87,7 +87,7 @@ static struct msp3400c_init_data_dem {
 		{-8, -8, 4, 6, 78, 107},
 		MSP_CARRIER(10.7), MSP_CARRIER(10.7),
 		0x00d0, 0x0480, 0x0020, 0x3000
-	}, {	/* Terrestial FM-mono + FM-stereo */
+	}, {	/* Terrestrial FM-mono + FM-stereo */
 		{3, 18, 27, 48, 66, 72},
 		{3, 18, 27, 48, 66, 72},
 		MSP_CARRIER(5.5), MSP_CARRIER(5.5),
diff --git a/drivers/media/video/omap/omap_vout.c b/drivers/media/video/omap/omap_vout.c
index 029a4babfd61..d4fe7bc92a1d 100644
--- a/drivers/media/video/omap/omap_vout.c
+++ b/drivers/media/video/omap/omap_vout.c
@@ -473,7 +473,7 @@ static int omap_vout_vrfb_buffer_setup(struct omap_vout_device *vout,
 /*
  * Convert V4L2 rotation to DSS rotation
  *	V4L2 understand 0, 90, 180, 270.
- *	Convert to 0, 1, 2 and 3 repsectively for DSS
+ *	Convert to 0, 1, 2 and 3 respectively for DSS
  */
 static int v4l2_rot_to_dss_rot(int v4l2_rotation,
 			enum dss_rotation *rotation, bool mirror)
@@ -1142,7 +1142,7 @@ static int omap_vout_buffer_prepare(struct videobuf_queue *q,
 }
 
 /*
- * Buffer queue funtion will be called from the videobuf layer when _QBUF
+ * Buffer queue function will be called from the videobuf layer when _QBUF
  * ioctl is called. It is used to enqueue buffer, which is ready to be
  * displayed.
  */
diff --git a/drivers/media/video/omap/omap_voutlib.c b/drivers/media/video/omap/omap_voutlib.c
index b941c761eef9..2aa6a76c5e59 100644
--- a/drivers/media/video/omap/omap_voutlib.c
+++ b/drivers/media/video/omap/omap_voutlib.c
@@ -53,7 +53,7 @@ EXPORT_SYMBOL_GPL(omap_vout_default_crop);
 /* Given a new render window in new_win, adjust the window to the
  * nearest supported configuration.  The adjusted window parameters are
  * returned in new_win.
- * Returns zero if succesful, or -EINVAL if the requested window is
+ * Returns zero if successful, or -EINVAL if the requested window is
  * impossible and cannot reasonably be adjusted.
  */
 int omap_vout_try_window(struct v4l2_framebuffer *fbuf,
@@ -101,7 +101,7 @@ EXPORT_SYMBOL_GPL(omap_vout_try_window);
  * will also be adjusted if necessary.  Preference is given to keeping the
  * the window as close to the requested configuration as possible.  If
  * successful, new_win, vout->win, and crop are updated.
- * Returns zero if succesful, or -EINVAL if the requested preview window is
+ * Returns zero if successful, or -EINVAL if the requested preview window is
  * impossible and cannot reasonably be adjusted.
  */
 int omap_vout_new_window(struct v4l2_rect *crop,
@@ -155,7 +155,7 @@ EXPORT_SYMBOL_GPL(omap_vout_new_window);
  * window would fall outside the display boundaries, the cropping rectangle
  * will also be adjusted to maintain the rescaling ratios.  If successful, crop
  * and win are updated.
- * Returns zero if succesful, or -EINVAL if the requested cropping rectangle is
+ * Returns zero if successful, or -EINVAL if the requested cropping rectangle is
  * impossible and cannot reasonably be adjusted.
  */
 int omap_vout_new_crop(struct v4l2_pix_format *pix,
diff --git a/drivers/media/video/omap1_camera.c b/drivers/media/video/omap1_camera.c
index eab31cbd68eb..5954b9306630 100644
--- a/drivers/media/video/omap1_camera.c
+++ b/drivers/media/video/omap1_camera.c
@@ -687,7 +687,7 @@ static void videobuf_done(struct omap1_cam_dev *pcdev,
 		 * In CONTIG mode, the current buffer parameters had already
 		 * been entered into the DMA programming register set while the
 		 * buffer was fetched with prepare_next_vb(), they may have also
-		 * been transfered into the runtime set and already active if
+		 * been transferred into the runtime set and already active if
 		 * the DMA still running.
 		 */
 	} else {
@@ -835,7 +835,7 @@ static irqreturn_t cam_isr(int irq, void *data)
 				/*
 				 * If exactly 2 sgbufs from the next sglist have
 				 * been programmed into the DMA engine (the
-				 * frist one already transfered into the DMA
+				 * first one already transferred into the DMA
 				 * runtime register set, the second one still
 				 * in the programming set), then we are in sync.
 				 */
diff --git a/drivers/media/video/omap3isp/isp.c b/drivers/media/video/omap3isp/isp.c
index 1a9963bd6d40..503bd7922bd6 100644
--- a/drivers/media/video/omap3isp/isp.c
+++ b/drivers/media/video/omap3isp/isp.c
@@ -715,7 +715,7 @@ static int isp_pipeline_link_notify(struct media_pad *source,
  * Walk the entities chain starting at the pipeline output video node and start
  * all modules in the chain in the given mode.
  *
- * Return 0 if successfull, or the return value of the failed video::s_stream
+ * Return 0 if successful, or the return value of the failed video::s_stream
  * operation otherwise.
  */
 static int isp_pipeline_enable(struct isp_pipeline *pipe,
@@ -883,7 +883,7 @@ static int isp_pipeline_disable(struct isp_pipeline *pipe)
  * Set the pipeline to the given stream state. Pipelines can be started in
  * single-shot or continuous mode.
  *
- * Return 0 if successfull, or the return value of the failed video::s_stream
+ * Return 0 if successful, or the return value of the failed video::s_stream
  * operation otherwise.
  */
 int omap3isp_pipeline_set_stream(struct isp_pipeline *pipe,
@@ -1283,7 +1283,7 @@ static void __isp_subclk_update(struct isp_device *isp)
 		clk |= ISPCTRL_RSZ_CLK_EN;
 
 	/* NOTE: For CCDC & Preview submodules, we need to affect internal
-	 *       RAM aswell.
+	 *       RAM as well.
 	 */
 	if (isp->subclk_resources & OMAP3_ISP_SUBCLK_CCDC)
 		clk |= ISPCTRL_CCDC_CLK_EN | ISPCTRL_CCDC_RAM_EN;
@@ -1431,7 +1431,7 @@ static int isp_get_clocks(struct isp_device *isp)
  * Increment the reference count on the ISP. If the first reference is taken,
  * enable clocks and power-up all submodules.
  *
- * Return a pointer to the ISP device structure, or NULL if an error occured.
+ * Return a pointer to the ISP device structure, or NULL if an error occurred.
  */
 struct isp_device *omap3isp_get(struct isp_device *isp)
 {
diff --git a/drivers/media/video/omap3isp/ispccdc.h b/drivers/media/video/omap3isp/ispccdc.h
index d403af5d31d2..483a19cac1ad 100644
--- a/drivers/media/video/omap3isp/ispccdc.h
+++ b/drivers/media/video/omap3isp/ispccdc.h
@@ -150,7 +150,7 @@ struct ispccdc_lsc {
  * @input: Active input
  * @output: Active outputs
  * @video_out: Output video node
- * @error: A hardware error occured during capture
+ * @error: A hardware error occurred during capture
  * @alaw: A-law compression enabled (1) or disabled (0)
  * @lpf: Low pass filter enabled (1) or disabled (0)
  * @obclamp: Optical-black clamp enabled (1) or disabled (0)
@@ -163,7 +163,7 @@ struct ispccdc_lsc {
  * @shadow_update: Controls update in progress by userspace
  * @syncif: Interface synchronization configuration
  * @vpcfg: Video port configuration
- * @underrun: A buffer underrun occured and a new buffer has been queued
+ * @underrun: A buffer underrun occurred and a new buffer has been queued
  * @state: Streaming state
  * @lock: Serializes shadow_update with interrupt handler
  * @wait: Wait queue used to stop the module
diff --git a/drivers/media/video/omap3isp/ispccp2.c b/drivers/media/video/omap3isp/ispccp2.c
index 0efef2e78d93..0e16cab8e089 100644
--- a/drivers/media/video/omap3isp/ispccp2.c
+++ b/drivers/media/video/omap3isp/ispccp2.c
@@ -772,7 +772,7 @@ static int ccp2_enum_frame_size(struct v4l2_subdev *sd,
  * @sd    : pointer to v4l2 subdev structure
  * @fh    : V4L2 subdev file handle
  * @fmt   : pointer to v4l2 subdev format structure
- * return -EINVAL or zero on sucess
+ * return -EINVAL or zero on success
  */
 static int ccp2_get_format(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
 			      struct v4l2_subdev_format *fmt)
diff --git a/drivers/media/video/omap3isp/ispcsi2.c b/drivers/media/video/omap3isp/ispcsi2.c
index fb503f3db3be..69161a682b3d 100644
--- a/drivers/media/video/omap3isp/ispcsi2.c
+++ b/drivers/media/video/omap3isp/ispcsi2.c
@@ -969,7 +969,7 @@ static int csi2_enum_frame_size(struct v4l2_subdev *sd,
  * @sd : pointer to v4l2 subdev structure
  * @fh : V4L2 subdev file handle
  * @fmt: pointer to v4l2 subdev format structure
- * return -EINVAL or zero on sucess
+ * return -EINVAL or zero on success
  */
 static int csi2_get_format(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
 			   struct v4l2_subdev_format *fmt)
diff --git a/drivers/media/video/omap3isp/isppreview.c b/drivers/media/video/omap3isp/isppreview.c
index baf9374201dc..2b16988a501d 100644
--- a/drivers/media/video/omap3isp/isppreview.c
+++ b/drivers/media/video/omap3isp/isppreview.c
@@ -34,7 +34,7 @@
 #include "ispreg.h"
 #include "isppreview.h"
 
-/* Default values in Office Flourescent Light for RGBtoRGB Blending */
+/* Default values in Office Fluorescent Light for RGBtoRGB Blending */
 static struct omap3isp_prev_rgbtorgb flr_rgb2rgb = {
 	{	/* RGB-RGB Matrix */
 		{0x01E2, 0x0F30, 0x0FEE},
@@ -44,7 +44,7 @@ static struct omap3isp_prev_rgbtorgb flr_rgb2rgb = {
 	{0x0000, 0x0000, 0x0000}
 };
 
-/* Default values in Office Flourescent Light for RGB to YUV Conversion*/
+/* Default values in Office Fluorescent Light for RGB to YUV Conversion*/
 static struct omap3isp_prev_csc flr_prev_csc = {
 	{	/* CSC Coef Matrix */
 		{66, 129, 25},
@@ -54,22 +54,22 @@ static struct omap3isp_prev_csc flr_prev_csc = {
 	{0x0, 0x0, 0x0}
 };
 
-/* Default values in Office Flourescent Light for CFA Gradient*/
+/* Default values in Office Fluorescent Light for CFA Gradient*/
 #define FLR_CFA_GRADTHRS_HORZ	0x28
 #define FLR_CFA_GRADTHRS_VERT	0x28
 
-/* Default values in Office Flourescent Light for Chroma Suppression*/
+/* Default values in Office Fluorescent Light for Chroma Suppression*/
 #define FLR_CSUP_GAIN		0x0D
 #define FLR_CSUP_THRES		0xEB
 
-/* Default values in Office Flourescent Light for Noise Filter*/
+/* Default values in Office Fluorescent Light for Noise Filter*/
 #define FLR_NF_STRGTH		0x03
 
 /* Default values for White Balance */
 #define FLR_WBAL_DGAIN		0x100
 #define FLR_WBAL_COEF		0x20
 
-/* Default values in Office Flourescent Light for Black Adjustment*/
+/* Default values in Office Fluorescent Light for Black Adjustment*/
 #define FLR_BLKADJ_BLUE		0x0
 #define FLR_BLKADJ_GREEN	0x0
 #define FLR_BLKADJ_RED		0x0
@@ -137,7 +137,7 @@ preview_enable_invalaw(struct isp_prev_device *prev, u8 enable)
  * @enable: 1 - Enable, 0 - Disable
  *
  * NOTE: PRV_WSDR_ADDR and PRV_WADD_OFFSET must be set also
- * The proccess is applied for each captured frame.
+ * The process is applied for each captured frame.
  */
 static void
 preview_enable_drkframe_capture(struct isp_prev_device *prev, u8 enable)
@@ -157,7 +157,7 @@ preview_enable_drkframe_capture(struct isp_prev_device *prev, u8 enable)
  * @enable: 1 - Acquires memory bandwidth since the pixels in each frame is
  *          subtracted with the pixels in the current frame.
  *
- * The proccess is applied for each captured frame.
+ * The process is applied for each captured frame.
  */
 static void
 preview_enable_drkframe(struct isp_prev_device *prev, u8 enable)
@@ -1528,7 +1528,7 @@ static long preview_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
  * preview_set_stream - Enable/Disable streaming on preview subdev
  * @sd    : pointer to v4l2 subdev structure
  * @enable: 1 == Enable, 0 == Disable
- * return -EINVAL or zero on sucess
+ * return -EINVAL or zero on success
  */
 static int preview_set_stream(struct v4l2_subdev *sd, int enable)
 {
@@ -1780,7 +1780,7 @@ static int preview_enum_frame_size(struct v4l2_subdev *sd,
  * @sd : pointer to v4l2 subdev structure
  * @fh : V4L2 subdev file handle
  * @fmt: pointer to v4l2 subdev format structure
- * return -EINVAL or zero on sucess
+ * return -EINVAL or zero on success
  */
 static int preview_get_format(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
 			      struct v4l2_subdev_format *fmt)
diff --git a/drivers/media/video/omap3isp/isppreview.h b/drivers/media/video/omap3isp/isppreview.h
index f2d63ca4bd6f..fa943bd05c7f 100644
--- a/drivers/media/video/omap3isp/isppreview.h
+++ b/drivers/media/video/omap3isp/isppreview.h
@@ -163,7 +163,7 @@ struct isptables_update {
  * @output: Bitmask of the active output
  * @video_in: Input video entity
  * @video_out: Output video entity
- * @error: A hardware error occured during capture
+ * @error: A hardware error occurred during capture
  * @params: Module configuration data
  * @shadow_update: If set, update the hardware configured in the next interrupt
  * @underrun: Whether the preview entity has queued buffers on the output
diff --git a/drivers/media/video/omap3isp/ispqueue.h b/drivers/media/video/omap3isp/ispqueue.h
index 251de3e1679d..92c5a12157d5 100644
--- a/drivers/media/video/omap3isp/ispqueue.h
+++ b/drivers/media/video/omap3isp/ispqueue.h
@@ -46,9 +46,9 @@ struct scatterlist;
  *	device yet.
  * @ISP_BUF_STATE_ACTIVE: The buffer is in use for an active video transfer.
  * @ISP_BUF_STATE_ERROR: The device is done with the buffer and an error
- *	occured. For capture device the buffer likely contains corrupted data or
+ *	occurred. For capture device the buffer likely contains corrupted data or
  *	no data at all.
- * @ISP_BUF_STATE_DONE: The device is done with the buffer and no error occured.
+ * @ISP_BUF_STATE_DONE: The device is done with the buffer and no error occurred.
  *	For capture devices the buffer contains valid data.
  */
 enum isp_video_buffer_state {
diff --git a/drivers/media/video/omap3isp/ispresizer.c b/drivers/media/video/omap3isp/ispresizer.c
index 75d39b115d42..653f88ba56db 100644
--- a/drivers/media/video/omap3isp/ispresizer.c
+++ b/drivers/media/video/omap3isp/ispresizer.c
@@ -751,7 +751,7 @@ static void resizer_print_status(struct isp_res_device *res)
  * ratio will thus result in a resizing factor slightly larger than the
  * requested value.
  *
- * To accomodate that, and make sure the TRM equations are satisfied exactly, we
+ * To accommodate that, and make sure the TRM equations are satisfied exactly, we
  * compute the input crop rectangle as the last step.
  *
  * As if the situation wasn't complex enough, the maximum output width depends
@@ -1386,7 +1386,7 @@ static int resizer_enum_frame_size(struct v4l2_subdev *sd,
  * @sd    : pointer to v4l2 subdev structure
  * @fh    : V4L2 subdev file handle
  * @fmt   : pointer to v4l2 subdev format structure
- * return -EINVAL or zero on sucess
+ * return -EINVAL or zero on success
  */
 static int resizer_get_format(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
 			      struct v4l2_subdev_format *fmt)
diff --git a/drivers/media/video/omap3isp/ispvideo.c b/drivers/media/video/omap3isp/ispvideo.c
index a0bb5db9cb8a..208a7ec739d7 100644
--- a/drivers/media/video/omap3isp/ispvideo.c
+++ b/drivers/media/video/omap3isp/ispvideo.c
@@ -494,12 +494,12 @@ static const struct isp_video_queue_operations isp_video_queue_ops = {
 /*
  * omap3isp_video_buffer_next - Complete the current buffer and return the next
  * @video: ISP video object
- * @error: Whether an error occured during capture
+ * @error: Whether an error occurred during capture
  *
  * Remove the current video buffer from the DMA queue and fill its timestamp,
  * field count and state fields before waking up its completion handler.
  *
- * The buffer state is set to VIDEOBUF_DONE if no error occured (@error is 0)
+ * The buffer state is set to VIDEOBUF_DONE if no error occurred (@error is 0)
  * or VIDEOBUF_ERROR otherwise (@error is non-zero).
  *
  * The DMA queue is expected to contain at least one buffer.
@@ -578,7 +578,7 @@ struct isp_buffer *omap3isp_video_buffer_next(struct isp_video *video,
 /*
  * omap3isp_video_resume - Perform resume operation on the buffers
  * @video: ISP video object
- * @continuous: Pipeline is in single shot mode if 0 or continous mode otherwise
+ * @continuous: Pipeline is in single shot mode if 0 or continuous mode otherwise
  *
  * This function is intended to be used on suspend/resume scenario. It
  * requests video queue layer to discard buffers marked as DONE if it's in
diff --git a/drivers/media/video/ov6650.c b/drivers/media/video/ov6650.c
index fe8e3ebd9ce4..456d9ad9ae5a 100644
--- a/drivers/media/video/ov6650.c
+++ b/drivers/media/video/ov6650.c
@@ -1038,7 +1038,7 @@ static int ov6650_reset(struct i2c_client *client)
 	ret = ov6650_reg_rmw(client, REG_COMA, COMA_RESET, 0);
 	if (ret)
 		dev_err(&client->dev,
-			"An error occured while entering soft reset!\n");
+			"An error occurred while entering soft reset!\n");
 
 	return ret;
 }
diff --git a/drivers/media/video/ov9640.c b/drivers/media/video/ov9640.c
index 53d88a2ab920..5173ac449dd8 100644
--- a/drivers/media/video/ov9640.c
+++ b/drivers/media/video/ov9640.c
@@ -273,7 +273,7 @@ static int ov9640_reset(struct i2c_client *client)
 	ret = ov9640_reg_write(client, OV9640_COM7, OV9640_COM7_SCCB_RESET);
 	if (ret)
 		dev_err(&client->dev,
-			"An error occured while entering soft reset!\n");
+			"An error occurred while entering soft reset!\n");
 
 	return ret;
 }
diff --git a/drivers/media/video/pvrusb2/pvrusb2-eeprom.c b/drivers/media/video/pvrusb2/pvrusb2-eeprom.c
index aeed1c2945fb..9515f3a68f8f 100644
--- a/drivers/media/video/pvrusb2/pvrusb2-eeprom.c
+++ b/drivers/media/video/pvrusb2/pvrusb2-eeprom.c
@@ -32,7 +32,7 @@
 
    Read and analyze data in the eeprom.  Use tveeprom to figure out
    the packet structure, since this is another Hauppauge device and
-   internally it has a family resemblence to ivtv-type devices
+   internally it has a family resemblance to ivtv-type devices
 
 */
 
diff --git a/drivers/media/video/pvrusb2/pvrusb2-hdw.h b/drivers/media/video/pvrusb2/pvrusb2-hdw.h
index 51d3009ab57f..d7753ae9ff46 100644
--- a/drivers/media/video/pvrusb2/pvrusb2-hdw.h
+++ b/drivers/media/video/pvrusb2/pvrusb2-hdw.h
@@ -75,7 +75,7 @@ enum pvr2_v4l_type {
  *  (but it might still on the bus).  In this state there's nothing we can
  *  do; it must be replugged in order to recover.
  *
- *  COLD - Device is in an unusuable state, needs microcontroller firmware.
+ *  COLD - Device is in an unusable state, needs microcontroller firmware.
  *
  *  WARM - We can communicate with the device and the proper
  *  microcontroller firmware is running, but other device initialization is
diff --git a/drivers/media/video/pxa_camera.c b/drivers/media/video/pxa_camera.c
index 02686771740d..c1ee09a043ba 100644
--- a/drivers/media/video/pxa_camera.c
+++ b/drivers/media/video/pxa_camera.c
@@ -714,7 +714,7 @@ static void pxa_camera_wakeup(struct pxa_camera_dev *pcdev,
  *
  * The DMA chaining is done with DMA running. This means a tiny temporal window
  * remains, where a buffer is queued on the chain, while the chain is already
- * stopped. This means the tailed buffer would never be transfered by DMA.
+ * stopped. This means the tailed buffer would never be transferred by DMA.
  * This function restarts the capture for this corner case, where :
  *  - DADR() == DADDR_STOP
  *  - a videobuffer is queued on the pcdev->capture list
diff --git a/drivers/media/video/s5p-fimc/fimc-reg.c b/drivers/media/video/s5p-fimc/fimc-reg.c
index 4d929a394521..4893b2d91d84 100644
--- a/drivers/media/video/s5p-fimc/fimc-reg.c
+++ b/drivers/media/video/s5p-fimc/fimc-reg.c
@@ -356,7 +356,7 @@ void fimc_hw_en_capture(struct fimc_ctx *ctx)
 		/* one shot mode */
 		cfg |= S5P_CIIMGCPT_CPT_FREN_ENABLE | S5P_CIIMGCPT_IMGCPTEN;
 	} else {
-		/* Continous frame capture mode (freerun). */
+		/* Continuous frame capture mode (freerun). */
 		cfg &= ~(S5P_CIIMGCPT_CPT_FREN_ENABLE |
 			 S5P_CIIMGCPT_CPT_FRMOD_CNT);
 		cfg |= S5P_CIIMGCPT_IMGCPTEN;
diff --git a/drivers/media/video/saa7134/saa7134-cards.c b/drivers/media/video/saa7134/saa7134-cards.c
index 61c6007c8ea6..50f1be05ebd3 100644
--- a/drivers/media/video/saa7134/saa7134-cards.c
+++ b/drivers/media/video/saa7134/saa7134-cards.c
@@ -7460,7 +7460,7 @@ int saa7134_board_init2(struct saa7134_dev *dev)
 				dev->tuner_type = TUNER_PHILIPS_FM1216ME_MK3;
 				break;
 			default:
-				printk(KERN_ERR "%s Cant determine tuner type %x from EEPROM\n", dev->name, tuner_t);
+				printk(KERN_ERR "%s Can't determine tuner type %x from EEPROM\n", dev->name, tuner_t);
 			}
 		} else if ((data[1] != 0) && (data[1] != 0xff)) {
 			/* new config structure */
@@ -7480,7 +7480,7 @@ int saa7134_board_init2(struct saa7134_dev *dev)
 					printk(KERN_INFO "%s Board has DVB-T\n", dev->name);
 				break;
 			default:
-				printk(KERN_ERR "%s Cant determine tuner type %x from EEPROM\n", dev->name, tuner_t);
+				printk(KERN_ERR "%s Can't determine tuner type %x from EEPROM\n", dev->name, tuner_t);
 			}
 		} else {
 			printk(KERN_ERR "%s unexpected config structure\n", dev->name);
diff --git a/drivers/media/video/saa7164/saa7164-cmd.c b/drivers/media/video/saa7164/saa7164-cmd.c
index 6a4c217ed3a7..62fac7f9d04e 100644
--- a/drivers/media/video/saa7164/saa7164-cmd.c
+++ b/drivers/media/video/saa7164/saa7164-cmd.c
@@ -257,7 +257,7 @@ out:
 }
 
 /* Wait for a signal event, without holding a mutex. Either return TIMEOUT if
- * the event never occured, or SAA_OK if it was signaled during the wait.
+ * the event never occurred, or SAA_OK if it was signaled during the wait.
  */
 int saa7164_cmd_wait(struct saa7164_dev *dev, u8 seqno)
 {
diff --git a/drivers/media/video/saa7164/saa7164-fw.c b/drivers/media/video/saa7164/saa7164-fw.c
index b369300cce06..a266bf0169e6 100644
--- a/drivers/media/video/saa7164/saa7164-fw.c
+++ b/drivers/media/video/saa7164/saa7164-fw.c
@@ -444,7 +444,7 @@ int saa7164_downloadfirmware(struct saa7164_dev *dev)
 		printk(KERN_INFO " .Reserved = 0x%x\n", hdr->reserved);
 		printk(KERN_INFO " .Version = 0x%x\n", hdr->version);
 
-		/* Retreive bootloader if reqd */
+		/* Retrieve bootloader if reqd */
 		if ((hdr->firmwaresize == 0) && (hdr->bslsize == 0))
 			/* Second bootloader in the firmware file */
 			filesize = hdr->reserved * 16;
diff --git a/drivers/media/video/saa7164/saa7164-types.h b/drivers/media/video/saa7164/saa7164-types.h
index df1d2997fa6c..1d2140a3eb38 100644
--- a/drivers/media/video/saa7164/saa7164-types.h
+++ b/drivers/media/video/saa7164/saa7164-types.h
@@ -412,7 +412,7 @@ struct tmComResVBIFormatDescrHeader {
 	u8	StartLine; /* NTSC Start = 10 */
 	u8	EndLine; /* NTSC = 21 */
 	u8	FieldRate; /* 60 for NTSC */
-	u8	bNumLines; /* Unsed - scheduled for removal */
+	u8	bNumLines; /* Unused - scheduled for removal */
 } __attribute__((packed));
 
 struct tmComResProbeCommit {
diff --git a/drivers/media/video/sn9c102/sn9c102_core.c b/drivers/media/video/sn9c102/sn9c102_core.c
index ce56a1cdbf0a..0e07c493e6f0 100644
--- a/drivers/media/video/sn9c102/sn9c102_core.c
+++ b/drivers/media/video/sn9c102/sn9c102_core.c
@@ -1810,7 +1810,7 @@ static int sn9c102_open(struct file *filp)
 		/*
 		   We will not release the "open_mutex" lock, so that only one
 		   process can be in the wait queue below. This way the process
-		   will be sleeping while holding the lock, without loosing its
+		   will be sleeping while holding the lock, without losing its
 		   priority after any wake_up().
 		*/
 		err = wait_event_interruptible_exclusive(cam->wait_open,
diff --git a/drivers/media/video/sn9c102/sn9c102_sensor.h b/drivers/media/video/sn9c102/sn9c102_sensor.h
index 7f38549715b6..3679970dba2c 100644
--- a/drivers/media/video/sn9c102/sn9c102_sensor.h
+++ b/drivers/media/video/sn9c102/sn9c102_sensor.h
@@ -180,7 +180,7 @@ struct sn9c102_sensor {
 	   It should be used to initialize the sensor only, but may also
 	   configure part of the SN9C1XX chip if necessary. You don't need to
 	   setup picture settings like brightness, contrast, etc.. here, if
-	   the corrisponding controls are implemented (see below), since
+	   the corresponding controls are implemented (see below), since
 	   they are adjusted in the core driver by calling the set_ctrl()
 	   method after init(), where the arguments are the default values
 	   specified in the v4l2_queryctrl list of supported controls;
diff --git a/drivers/media/video/tcm825x.c b/drivers/media/video/tcm825x.c
index 54681a535822..b6ee1bd342dc 100644
--- a/drivers/media/video/tcm825x.c
+++ b/drivers/media/video/tcm825x.c
@@ -493,7 +493,7 @@ static int ioctl_g_ctrl(struct v4l2_int_device *s,
 	int val, r;
 	struct vcontrol *lvc;
 
-	/* exposure time is special, spread accross 2 registers */
+	/* exposure time is special, spread across 2 registers */
 	if (vc->id == V4L2_CID_EXPOSURE) {
 		int val_lower, val_upper;
 
@@ -538,7 +538,7 @@ static int ioctl_s_ctrl(struct v4l2_int_device *s,
 	struct vcontrol *lvc;
 	int val = vc->value;
 
-	/* exposure time is special, spread accross 2 registers */
+	/* exposure time is special, spread across 2 registers */
 	if (vc->id == V4L2_CID_EXPOSURE) {
 		int val_lower, val_upper;
 		val_lower = val & TCM825X_MASK(TCM825X_ESRSPD_L);
diff --git a/drivers/media/video/tvaudio.c b/drivers/media/video/tvaudio.c
index a25e2b5e1944..c46a3bb95852 100644
--- a/drivers/media/video/tvaudio.c
+++ b/drivers/media/video/tvaudio.c
@@ -1058,11 +1058,11 @@ static int tda9874a_initialize(struct CHIPSTATE *chip)
 #define TDA9875_MVR         0x1b  /* Main volume droite */
 #define TDA9875_MBA         0x1d  /* Main Basse */
 #define TDA9875_MTR         0x1e  /* Main treble */
-#define TDA9875_ACS         0x1f  /* Auxilary channel select (FM) 0b0000000*/
-#define TDA9875_AVL         0x20  /* Auxilary volume gauche */
-#define TDA9875_AVR         0x21  /* Auxilary volume droite */
-#define TDA9875_ABA         0x22  /* Auxilary Basse */
-#define TDA9875_ATR         0x23  /* Auxilary treble */
+#define TDA9875_ACS         0x1f  /* Auxiliary channel select (FM) 0b0000000*/
+#define TDA9875_AVL         0x20  /* Auxiliary volume gauche */
+#define TDA9875_AVR         0x21  /* Auxiliary volume droite */
+#define TDA9875_ABA         0x22  /* Auxiliary Basse */
+#define TDA9875_ATR         0x23  /* Auxiliary treble */
 
 #define TDA9875_MSR         0x02  /* Monitor select register */
 #define TDA9875_C1MSB       0x03  /* Carrier 1 (FM) frequency register MSB */
diff --git a/drivers/media/video/uvc/uvc_video.c b/drivers/media/video/uvc/uvc_video.c
index 545c0294813d..fc766b9f24c5 100644
--- a/drivers/media/video/uvc/uvc_video.c
+++ b/drivers/media/video/uvc/uvc_video.c
@@ -394,11 +394,11 @@ int uvc_commit_video(struct uvc_streaming *stream,
  *
  * uvc_video_decode_end is called with header data at the end of a bulk or
  * isochronous payload. It performs any additional header data processing and
- * returns 0 or a negative error code if an error occured. As header data have
+ * returns 0 or a negative error code if an error occurred. As header data have
  * already been processed by uvc_video_decode_start, this functions isn't
  * required to perform sanity checks a second time.
  *
- * For isochronous transfers where a payload is always transfered in a single
+ * For isochronous transfers where a payload is always transferred in a single
  * URB, the three functions will be called in a row.
  *
  * To let the decoder process header data and update its internal state even
@@ -658,7 +658,7 @@ static void uvc_video_decode_bulk(struct urb *urb, struct uvc_streaming *stream,
 							    buf);
 		} while (ret == -EAGAIN);
 
-		/* If an error occured skip the rest of the payload. */
+		/* If an error occurred skip the rest of the payload. */
 		if (ret < 0 || buf == NULL) {
 			stream->bulk.skip_payload = 1;
 		} else {
@@ -821,7 +821,7 @@ static int uvc_alloc_urb_buffers(struct uvc_streaming *stream,
 		return stream->urb_size / psize;
 
 	/* Compute the number of packets. Bulk endpoints might transfer UVC
-	 * payloads accross multiple URBs.
+	 * payloads across multiple URBs.
 	 */
 	npackets = DIV_ROUND_UP(size, psize);
 	if (npackets > UVC_MAX_PACKETS)
diff --git a/drivers/media/video/v4l2-ioctl.c b/drivers/media/video/v4l2-ioctl.c
index a01ed39e6c16..506edcc2ddeb 100644
--- a/drivers/media/video/v4l2-ioctl.c
+++ b/drivers/media/video/v4l2-ioctl.c
@@ -48,7 +48,7 @@
 			printk(KERN_CONT "%s: " fmt, vfd->name, ## arg);\
 		} while (0)
 
-/* Zero out the end of the struct pointed to by p.  Everthing after, but
+/* Zero out the end of the struct pointed to by p.  Everything after, but
  * not including, the specified field is cleared. */
 #define CLEAR_AFTER_FIELD(p, field) \
 	memset((u8 *)(p) + offsetof(typeof(*(p)), field) + sizeof((p)->field), \
diff --git a/drivers/media/video/vpx3220.c b/drivers/media/video/vpx3220.c
index 75301d10a838..ca372eb911d0 100644
--- a/drivers/media/video/vpx3220.c
+++ b/drivers/media/video/vpx3220.c
@@ -354,7 +354,7 @@ static int vpx3220_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
 
 	/* Here we back up the input selection because it gets
 	   overwritten when we fill the registers with the
-	   choosen video norm */
+	   chosen video norm */
 	temp_input = vpx3220_fp_read(sd, 0xf2);
 
 	v4l2_dbg(1, debug, sd, "s_std %llx\n", (unsigned long long)std);
diff --git a/drivers/media/video/zoran/videocodec.h b/drivers/media/video/zoran/videocodec.h
index b654bfff8740..def55585ad23 100644
--- a/drivers/media/video/zoran/videocodec.h
+++ b/drivers/media/video/zoran/videocodec.h
@@ -57,7 +57,7 @@
    therfor they may not be initialized.
 
    The other functions are just for convenience, as they are for sure used by
-   most/all of the codecs. The last ones may be ommited, too.
+   most/all of the codecs. The last ones may be omitted, too.
 
    See the structure declaration below for more information and which data has
    to be set up for the master and the slave.
diff --git a/drivers/media/video/zoran/zoran.h b/drivers/media/video/zoran/zoran.h
index 4bb368e6fd47..f3f640014928 100644
--- a/drivers/media/video/zoran/zoran.h
+++ b/drivers/media/video/zoran/zoran.h
@@ -259,7 +259,7 @@ struct card_info {
 	struct vfe_polarity vfe_pol;
 	u8 gpio_pol[ZR_GPIO_MAX];
 
-	/* is the /GWS line conected? */
+	/* is the /GWS line connected? */
 	u8 gws_not_connected;
 
 	/* avs6eyes mux setting */
diff --git a/drivers/media/video/zoran/zoran_driver.c b/drivers/media/video/zoran/zoran_driver.c
index 7c3921de9589..2771d818406e 100644
--- a/drivers/media/video/zoran/zoran_driver.c
+++ b/drivers/media/video/zoran/zoran_driver.c
@@ -1254,7 +1254,7 @@ static int setup_overlay(struct zoran_fh *fh, int on)
 {
 	struct zoran *zr = fh->zr;
 
-	/* If there is nothing to do, return immediatly */
+	/* If there is nothing to do, return immediately */
 	if ((on && fh->overlay_active != ZORAN_FREE) ||
 	    (!on && fh->overlay_active == ZORAN_FREE))
 		return 0;
diff --git a/drivers/memstick/core/mspro_block.c b/drivers/memstick/core/mspro_block.c
index 57b42bfc7d23..4a1909a32b60 100644
--- a/drivers/memstick/core/mspro_block.c
+++ b/drivers/memstick/core/mspro_block.c
@@ -973,7 +973,7 @@ try_again:
 }
 
 /* Memory allocated for attributes by this function should be freed by
- * mspro_block_data_clear, no matter if the initialization process succeded
+ * mspro_block_data_clear, no matter if the initialization process succeeded
  * or failed.
  */
 static int mspro_block_read_attributes(struct memstick_dev *card)
diff --git a/drivers/memstick/host/Kconfig b/drivers/memstick/host/Kconfig
index 4ce5c8dffb68..cc0997a05171 100644
--- a/drivers/memstick/host/Kconfig
+++ b/drivers/memstick/host/Kconfig
@@ -30,3 +30,15 @@ config MEMSTICK_JMICRON_38X
 
           To compile this driver as a module, choose M here: the
 	  module will be called jmb38x_ms.
+
+config MEMSTICK_R592
+	tristate "Ricoh R5C592 MemoryStick interface support (EXPERIMENTAL)"
+	depends on EXPERIMENTAL && PCI
+
+	help
+	  Say Y here if you want to be able to access MemoryStick cards with
+	  the Ricoh R5C592 MemoryStick card reader (which is part of 5 in one
+		multifunction reader)
+
+	  To compile this driver as a module, choose M here: the module will
+	  be called r592.
diff --git a/drivers/memstick/host/Makefile b/drivers/memstick/host/Makefile
index a1815e9dd019..31ba8d378e46 100644
--- a/drivers/memstick/host/Makefile
+++ b/drivers/memstick/host/Makefile
@@ -4,3 +4,4 @@
 
 obj-$(CONFIG_MEMSTICK_TIFM_MS)		+= tifm_ms.o
 obj-$(CONFIG_MEMSTICK_JMICRON_38X)	+= jmb38x_ms.o
+obj-$(CONFIG_MEMSTICK_R592)		+= r592.o
diff --git a/drivers/memstick/host/r592.c b/drivers/memstick/host/r592.c
new file mode 100644
index 000000000000..668f5c6a0399
--- /dev/null
+++ b/drivers/memstick/host/r592.c
@@ -0,0 +1,908 @@
+/*
+ * Copyright (C) 2010 - Maxim Levitsky
+ * driver for Ricoh memstick readers
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/freezer.h>
+#include <linux/jiffies.h>
+#include <linux/interrupt.h>
+#include <linux/pci.h>
+#include <linux/pci_ids.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/kthread.h>
+#include <linux/sched.h>
+#include <linux/highmem.h>
+#include <asm/byteorder.h>
+#include <linux/swab.h>
+#include "r592.h"
+
+static int r592_enable_dma = 1;
+static int debug;
+
+static const char *tpc_names[] = {
+	"MS_TPC_READ_MG_STATUS",
+	"MS_TPC_READ_LONG_DATA",
+	"MS_TPC_READ_SHORT_DATA",
+	"MS_TPC_READ_REG",
+	"MS_TPC_READ_QUAD_DATA",
+	"INVALID",
+	"MS_TPC_GET_INT",
+	"MS_TPC_SET_RW_REG_ADRS",
+	"MS_TPC_EX_SET_CMD",
+	"MS_TPC_WRITE_QUAD_DATA",
+	"MS_TPC_WRITE_REG",
+	"MS_TPC_WRITE_SHORT_DATA",
+	"MS_TPC_WRITE_LONG_DATA",
+	"MS_TPC_SET_CMD",
+};
+
+/**
+ * memstick_debug_get_tpc_name - debug helper that returns string for
+ * a TPC number
+ */
+const char *memstick_debug_get_tpc_name(int tpc)
+{
+	return tpc_names[tpc-1];
+}
+EXPORT_SYMBOL(memstick_debug_get_tpc_name);
+
+
+/* Read a register*/
+static inline u32 r592_read_reg(struct r592_device *dev, int address)
+{
+	u32 value = readl(dev->mmio + address);
+	dbg_reg("reg #%02d == 0x%08x", address, value);
+	return value;
+}
+
+/* Write a register */
+static inline void r592_write_reg(struct r592_device *dev,
+							int address, u32 value)
+{
+	dbg_reg("reg #%02d <- 0x%08x", address, value);
+	writel(value, dev->mmio + address);
+}
+
+/* Reads a big endian DWORD register */
+static inline u32 r592_read_reg_raw_be(struct r592_device *dev, int address)
+{
+	u32 value = __raw_readl(dev->mmio + address);
+	dbg_reg("reg #%02d == 0x%08x", address, value);
+	return be32_to_cpu(value);
+}
+
+/* Writes a big endian DWORD register */
+static inline void r592_write_reg_raw_be(struct r592_device *dev,
+							int address, u32 value)
+{
+	dbg_reg("reg #%02d <- 0x%08x", address, value);
+	__raw_writel(cpu_to_be32(value), dev->mmio + address);
+}
+
+/* Set specific bits in a register (little endian) */
+static inline void r592_set_reg_mask(struct r592_device *dev,
+							int address, u32 mask)
+{
+	u32 reg = readl(dev->mmio + address);
+	dbg_reg("reg #%02d |= 0x%08x (old =0x%08x)", address, mask, reg);
+	writel(reg | mask , dev->mmio + address);
+}
+
+/* Clear specific bits in a register (little endian) */
+static inline void r592_clear_reg_mask(struct r592_device *dev,
+						int address, u32 mask)
+{
+	u32 reg = readl(dev->mmio + address);
+	dbg_reg("reg #%02d &= 0x%08x (old = 0x%08x, mask = 0x%08x)",
+						address, ~mask, reg, mask);
+	writel(reg & ~mask, dev->mmio + address);
+}
+
+
+/* Wait for status bits while checking for errors */
+static int r592_wait_status(struct r592_device *dev, u32 mask, u32 wanted_mask)
+{
+	unsigned long timeout = jiffies + msecs_to_jiffies(1000);
+	u32 reg = r592_read_reg(dev, R592_STATUS);
+
+	if ((reg & mask) == wanted_mask)
+		return 0;
+
+	while (time_before(jiffies, timeout)) {
+
+		reg = r592_read_reg(dev, R592_STATUS);
+
+		if ((reg & mask) == wanted_mask)
+			return 0;
+
+		if (reg & (R592_STATUS_SEND_ERR | R592_STATUS_RECV_ERR))
+			return -EIO;
+
+		cpu_relax();
+	}
+	return -ETIME;
+}
+
+
+/* Enable/disable device */
+static int r592_enable_device(struct r592_device *dev, bool enable)
+{
+	dbg("%sabling the device", enable ? "en" : "dis");
+
+	if (enable) {
+
+		/* Power up the card */
+		r592_write_reg(dev, R592_POWER, R592_POWER_0 | R592_POWER_1);
+
+		/* Perform a reset */
+		r592_set_reg_mask(dev, R592_IO, R592_IO_RESET);
+
+		msleep(100);
+	} else
+		/* Power down the card */
+		r592_write_reg(dev, R592_POWER, 0);
+
+	return 0;
+}
+
+/* Set serial/parallel mode */
+static int r592_set_mode(struct r592_device *dev, bool parallel_mode)
+{
+	if (!parallel_mode) {
+		dbg("switching to serial mode");
+
+		/* Set serial mode */
+		r592_write_reg(dev, R592_IO_MODE, R592_IO_MODE_SERIAL);
+
+		r592_clear_reg_mask(dev, R592_POWER, R592_POWER_20);
+
+	} else {
+		dbg("switching to parallel mode");
+
+		/* This setting should be set _before_ switch TPC */
+		r592_set_reg_mask(dev, R592_POWER, R592_POWER_20);
+
+		r592_clear_reg_mask(dev, R592_IO,
+			R592_IO_SERIAL1 | R592_IO_SERIAL2);
+
+		/* Set the parallel mode now */
+		r592_write_reg(dev, R592_IO_MODE, R592_IO_MODE_PARALLEL);
+	}
+
+	dev->parallel_mode = parallel_mode;
+	return 0;
+}
+
+/* Perform a controller reset without powering down the card */
+static void r592_host_reset(struct r592_device *dev)
+{
+	r592_set_reg_mask(dev, R592_IO, R592_IO_RESET);
+	msleep(100);
+	r592_set_mode(dev, dev->parallel_mode);
+}
+
+/* Disable all hardware interrupts */
+static void r592_clear_interrupts(struct r592_device *dev)
+{
+	/* Disable & ACK all interrupts */
+	r592_clear_reg_mask(dev, R592_REG_MSC, IRQ_ALL_ACK_MASK);
+	r592_clear_reg_mask(dev, R592_REG_MSC, IRQ_ALL_EN_MASK);
+}
+
+/* Tests if there is an CRC error */
+static int r592_test_io_error(struct r592_device *dev)
+{
+	if (!(r592_read_reg(dev, R592_STATUS) &
+		(R592_STATUS_SEND_ERR | R592_STATUS_RECV_ERR)))
+		return 0;
+
+	return -EIO;
+}
+
+/* Ensure that FIFO is ready for use */
+static int r592_test_fifo_empty(struct r592_device *dev)
+{
+	if (r592_read_reg(dev, R592_REG_MSC) & R592_REG_MSC_FIFO_EMPTY)
+		return 0;
+
+	dbg("FIFO not ready, trying to reset the device");
+	r592_host_reset(dev);
+
+	if (r592_read_reg(dev, R592_REG_MSC) & R592_REG_MSC_FIFO_EMPTY)
+		return 0;
+
+	message("FIFO still not ready, giving up");
+	return -EIO;
+}
+
+/* Activates the DMA transfer from to FIFO */
+static void r592_start_dma(struct r592_device *dev, bool is_write)
+{
+	unsigned long flags;
+	u32 reg;
+	spin_lock_irqsave(&dev->irq_lock, flags);
+
+	/* Ack interrupts (just in case) + enable them */
+	r592_clear_reg_mask(dev, R592_REG_MSC, DMA_IRQ_ACK_MASK);
+	r592_set_reg_mask(dev, R592_REG_MSC, DMA_IRQ_EN_MASK);
+
+	/* Set DMA address */
+	r592_write_reg(dev, R592_FIFO_DMA, sg_dma_address(&dev->req->sg));
+
+	/* Enable the DMA */
+	reg = r592_read_reg(dev, R592_FIFO_DMA_SETTINGS);
+	reg |= R592_FIFO_DMA_SETTINGS_EN;
+
+	if (!is_write)
+		reg |= R592_FIFO_DMA_SETTINGS_DIR;
+	else
+		reg &= ~R592_FIFO_DMA_SETTINGS_DIR;
+	r592_write_reg(dev, R592_FIFO_DMA_SETTINGS, reg);
+
+	spin_unlock_irqrestore(&dev->irq_lock, flags);
+}
+
+/* Cleanups DMA related settings */
+static void r592_stop_dma(struct r592_device *dev, int error)
+{
+	r592_clear_reg_mask(dev, R592_FIFO_DMA_SETTINGS,
+		R592_FIFO_DMA_SETTINGS_EN);
+
+	/* This is only a precation */
+	r592_write_reg(dev, R592_FIFO_DMA,
+			dev->dummy_dma_page_physical_address);
+
+	r592_clear_reg_mask(dev, R592_REG_MSC, DMA_IRQ_EN_MASK);
+	r592_clear_reg_mask(dev, R592_REG_MSC, DMA_IRQ_ACK_MASK);
+	dev->dma_error = error;
+}
+
+/* Test if hardware supports DMA */
+static void r592_check_dma(struct r592_device *dev)
+{
+	dev->dma_capable = r592_enable_dma &&
+		(r592_read_reg(dev, R592_FIFO_DMA_SETTINGS) &
+			R592_FIFO_DMA_SETTINGS_CAP);
+}
+
+/* Transfers fifo contents in/out using DMA */
+static int r592_transfer_fifo_dma(struct r592_device *dev)
+{
+	int len, sg_count;
+	bool is_write;
+
+	if (!dev->dma_capable || !dev->req->long_data)
+		return -EINVAL;
+
+	len = dev->req->sg.length;
+	is_write = dev->req->data_dir == WRITE;
+
+	if (len != R592_LFIFO_SIZE)
+		return -EINVAL;
+
+	dbg_verbose("doing dma transfer");
+
+	dev->dma_error = 0;
+	INIT_COMPLETION(dev->dma_done);
+
+	/* TODO: hidden assumption about nenth beeing always 1 */
+	sg_count = dma_map_sg(&dev->pci_dev->dev, &dev->req->sg, 1, is_write ?
+		PCI_DMA_TODEVICE : PCI_DMA_FROMDEVICE);
+
+	if (sg_count != 1 ||
+			(sg_dma_len(&dev->req->sg) < dev->req->sg.length)) {
+		message("problem in dma_map_sg");
+		return -EIO;
+	}
+
+	r592_start_dma(dev, is_write);
+
+	/* Wait for DMA completion */
+	if (!wait_for_completion_timeout(
+			&dev->dma_done, msecs_to_jiffies(1000))) {
+		message("DMA timeout");
+		r592_stop_dma(dev, -ETIMEDOUT);
+	}
+
+	dma_unmap_sg(&dev->pci_dev->dev, &dev->req->sg, 1, is_write ?
+		PCI_DMA_TODEVICE : PCI_DMA_FROMDEVICE);
+
+
+	return dev->dma_error;
+}
+
+/*
+ * Writes the FIFO in 4 byte chunks.
+ * If length isn't 4 byte aligned, rest of the data if put to a fifo
+ * to be written later
+ * Use r592_flush_fifo_write to flush that fifo when writing for the
+ * last time
+ */
+static void r592_write_fifo_pio(struct r592_device *dev,
+					unsigned char *buffer, int len)
+{
+	/* flush spill from former write */
+	if (!kfifo_is_empty(&dev->pio_fifo)) {
+
+		u8 tmp[4] = {0};
+		int copy_len = kfifo_in(&dev->pio_fifo, buffer, len);
+
+		if (!kfifo_is_full(&dev->pio_fifo))
+			return;
+		len -= copy_len;
+		buffer += copy_len;
+
+		copy_len = kfifo_out(&dev->pio_fifo, tmp, 4);
+		WARN_ON(copy_len != 4);
+		r592_write_reg_raw_be(dev, R592_FIFO_PIO, *(u32 *)tmp);
+	}
+
+	WARN_ON(!kfifo_is_empty(&dev->pio_fifo));
+
+	/* write full dwords */
+	while (len >= 4) {
+		r592_write_reg_raw_be(dev, R592_FIFO_PIO, *(u32 *)buffer);
+		buffer += 4;
+		len -= 4;
+	}
+
+	/* put remaining bytes to the spill */
+	if (len)
+		kfifo_in(&dev->pio_fifo, buffer, len);
+}
+
+/* Flushes the temporary FIFO used to make aligned DWORD writes */
+static void r592_flush_fifo_write(struct r592_device *dev)
+{
+	u8 buffer[4] = { 0 };
+	int len;
+
+	if (kfifo_is_empty(&dev->pio_fifo))
+		return;
+
+	len = kfifo_out(&dev->pio_fifo, buffer, 4);
+	r592_write_reg_raw_be(dev, R592_FIFO_PIO, *(u32 *)buffer);
+}
+
+/*
+ * Read a fifo in 4 bytes chunks.
+ * If input doesn't fit the buffer, it places bytes of last dword in spill
+ * buffer, so that they don't get lost on last read, just throw these away.
+ */
+static void r592_read_fifo_pio(struct r592_device *dev,
+						unsigned char *buffer, int len)
+{
+	u8 tmp[4];
+
+	/* Read from last spill */
+	if (!kfifo_is_empty(&dev->pio_fifo)) {
+		int bytes_copied =
+			kfifo_out(&dev->pio_fifo, buffer, min(4, len));
+		buffer += bytes_copied;
+		len -= bytes_copied;
+
+		if (!kfifo_is_empty(&dev->pio_fifo))
+			return;
+	}
+
+	/* Reads dwords from FIFO */
+	while (len >= 4) {
+		*(u32 *)buffer = r592_read_reg_raw_be(dev, R592_FIFO_PIO);
+		buffer += 4;
+		len -= 4;
+	}
+
+	if (len) {
+		*(u32 *)tmp = r592_read_reg_raw_be(dev, R592_FIFO_PIO);
+		kfifo_in(&dev->pio_fifo, tmp, 4);
+		len -= kfifo_out(&dev->pio_fifo, buffer, len);
+	}
+
+	WARN_ON(len);
+	return;
+}
+
+/* Transfers actual data using PIO. */
+static int r592_transfer_fifo_pio(struct r592_device *dev)
+{
+	unsigned long flags;
+
+	bool is_write = dev->req->tpc >= MS_TPC_SET_RW_REG_ADRS;
+	struct sg_mapping_iter miter;
+
+	kfifo_reset(&dev->pio_fifo);
+
+	if (!dev->req->long_data) {
+		if (is_write) {
+			r592_write_fifo_pio(dev, dev->req->data,
+							dev->req->data_len);
+			r592_flush_fifo_write(dev);
+		} else
+			r592_read_fifo_pio(dev, dev->req->data,
+							dev->req->data_len);
+		return 0;
+	}
+
+	local_irq_save(flags);
+	sg_miter_start(&miter, &dev->req->sg, 1, SG_MITER_ATOMIC |
+		(is_write ? SG_MITER_FROM_SG : SG_MITER_TO_SG));
+
+	/* Do the transfer fifo<->memory*/
+	while (sg_miter_next(&miter))
+		if (is_write)
+			r592_write_fifo_pio(dev, miter.addr, miter.length);
+		else
+			r592_read_fifo_pio(dev, miter.addr, miter.length);
+
+
+	/* Write last few non aligned bytes*/
+	if (is_write)
+		r592_flush_fifo_write(dev);
+
+	sg_miter_stop(&miter);
+	local_irq_restore(flags);
+	return 0;
+}
+
+/* Executes one TPC (data is read/written from small or large fifo) */
+static void r592_execute_tpc(struct r592_device *dev)
+{
+	bool is_write = dev->req->tpc >= MS_TPC_SET_RW_REG_ADRS;
+	int len, error;
+	u32 status, reg;
+
+	if (!dev->req) {
+		message("BUG: tpc execution without request!");
+		return;
+	}
+
+	len = dev->req->long_data ?
+		dev->req->sg.length : dev->req->data_len;
+
+	/* Ensure that FIFO can hold the input data */
+	if (len > R592_LFIFO_SIZE) {
+		message("IO: hardware doesn't support TPCs longer that 512");
+		error = -ENOSYS;
+		goto out;
+	}
+
+	if (!(r592_read_reg(dev, R592_REG_MSC) & R592_REG_MSC_PRSNT)) {
+		dbg("IO: refusing to send TPC because card is absent");
+		error = -ENODEV;
+		goto out;
+	}
+
+	dbg("IO: executing %s LEN=%d",
+			memstick_debug_get_tpc_name(dev->req->tpc), len);
+
+	/* Set IO direction */
+	if (is_write)
+		r592_set_reg_mask(dev, R592_IO, R592_IO_DIRECTION);
+	else
+		r592_clear_reg_mask(dev, R592_IO, R592_IO_DIRECTION);
+
+
+	error = r592_test_fifo_empty(dev);
+	if (error)
+		goto out;
+
+	/* Transfer write data */
+	if (is_write) {
+		error = r592_transfer_fifo_dma(dev);
+		if (error == -EINVAL)
+			error = r592_transfer_fifo_pio(dev);
+	}
+
+	if (error)
+		goto out;
+
+	/* Trigger the TPC */
+	reg = (len << R592_TPC_EXEC_LEN_SHIFT) |
+		(dev->req->tpc << R592_TPC_EXEC_TPC_SHIFT) |
+			R592_TPC_EXEC_BIG_FIFO;
+
+	r592_write_reg(dev, R592_TPC_EXEC, reg);
+
+	/* Wait for TPC completion */
+	status = R592_STATUS_RDY;
+	if (dev->req->need_card_int)
+		status |= R592_STATUS_CED;
+
+	error = r592_wait_status(dev, status, status);
+	if (error) {
+		message("card didn't respond");
+		goto out;
+	}
+
+	/* Test IO errors */
+	error = r592_test_io_error(dev);
+	if (error) {
+		dbg("IO error");
+		goto out;
+	}
+
+	/* Read data from FIFO */
+	if (!is_write) {
+		error = r592_transfer_fifo_dma(dev);
+		if (error == -EINVAL)
+			error = r592_transfer_fifo_pio(dev);
+	}
+
+	/* read INT reg. This can be shortened with shifts, but that way
+		its more readable */
+	if (dev->parallel_mode && dev->req->need_card_int) {
+
+		dev->req->int_reg = 0;
+		status = r592_read_reg(dev, R592_STATUS);
+
+		if (status & R592_STATUS_P_CMDNACK)
+			dev->req->int_reg |= MEMSTICK_INT_CMDNAK;
+		if (status & R592_STATUS_P_BREQ)
+			dev->req->int_reg |= MEMSTICK_INT_BREQ;
+		if (status & R592_STATUS_P_INTERR)
+			dev->req->int_reg |= MEMSTICK_INT_ERR;
+		if (status & R592_STATUS_P_CED)
+			dev->req->int_reg |= MEMSTICK_INT_CED;
+	}
+
+	if (error)
+		dbg("FIFO read error");
+out:
+	dev->req->error = error;
+	r592_clear_reg_mask(dev, R592_REG_MSC, R592_REG_MSC_LED);
+	return;
+}
+
+/* Main request processing thread */
+static int r592_process_thread(void *data)
+{
+	int error;
+	struct r592_device *dev = (struct r592_device *)data;
+	unsigned long flags;
+
+	while (!kthread_should_stop()) {
+		spin_lock_irqsave(&dev->io_thread_lock, flags);
+		set_current_state(TASK_INTERRUPTIBLE);
+		error = memstick_next_req(dev->host, &dev->req);
+		spin_unlock_irqrestore(&dev->io_thread_lock, flags);
+
+		if (error) {
+			if (error == -ENXIO || error == -EAGAIN) {
+				dbg_verbose("IO: done IO, sleeping");
+			} else {
+				dbg("IO: unknown error from "
+					"memstick_next_req %d", error);
+			}
+
+			if (kthread_should_stop())
+				set_current_state(TASK_RUNNING);
+
+			schedule();
+		} else {
+			set_current_state(TASK_RUNNING);
+			r592_execute_tpc(dev);
+		}
+	}
+	return 0;
+}
+
+/* Reprogram chip to detect change in card state */
+/* eg, if card is detected, arm it to detect removal, and vice versa */
+static void r592_update_card_detect(struct r592_device *dev)
+{
+	u32 reg = r592_read_reg(dev, R592_REG_MSC);
+	bool card_detected = reg & R592_REG_MSC_PRSNT;
+
+	dbg("update card detect. card state: %s", card_detected ?
+		"present" : "absent");
+
+	reg &= ~((R592_REG_MSC_IRQ_REMOVE | R592_REG_MSC_IRQ_INSERT) << 16);
+
+	if (card_detected)
+		reg |= (R592_REG_MSC_IRQ_REMOVE << 16);
+	else
+		reg |= (R592_REG_MSC_IRQ_INSERT << 16);
+
+	r592_write_reg(dev, R592_REG_MSC, reg);
+}
+
+/* Timer routine that fires 1 second after last card detection event, */
+static void r592_detect_timer(long unsigned int data)
+{
+	struct r592_device *dev = (struct r592_device *)data;
+	r592_update_card_detect(dev);
+	memstick_detect_change(dev->host);
+}
+
+/* Interrupt handler */
+static irqreturn_t r592_irq(int irq, void *data)
+{
+	struct r592_device *dev = (struct r592_device *)data;
+	irqreturn_t ret = IRQ_NONE;
+	u32 reg;
+	u16 irq_enable, irq_status;
+	unsigned long flags;
+	int error;
+
+	spin_lock_irqsave(&dev->irq_lock, flags);
+
+	reg = r592_read_reg(dev, R592_REG_MSC);
+	irq_enable = reg >> 16;
+	irq_status = reg & 0xFFFF;
+
+	/* Ack the interrupts */
+	reg &= ~irq_status;
+	r592_write_reg(dev, R592_REG_MSC, reg);
+
+	/* Get the IRQ status minus bits that aren't enabled */
+	irq_status &= (irq_enable);
+
+	/* Due to limitation of memstick core, we don't look at bits that
+		indicate that card was removed/inserted and/or present */
+	if (irq_status & (R592_REG_MSC_IRQ_INSERT | R592_REG_MSC_IRQ_REMOVE)) {
+
+		bool card_was_added = irq_status & R592_REG_MSC_IRQ_INSERT;
+		ret = IRQ_HANDLED;
+
+		message("IRQ: card %s", card_was_added ? "added" : "removed");
+
+		mod_timer(&dev->detect_timer,
+			jiffies + msecs_to_jiffies(card_was_added ? 500 : 50));
+	}
+
+	if (irq_status &
+		(R592_REG_MSC_FIFO_DMA_DONE | R592_REG_MSC_FIFO_DMA_ERR)) {
+		ret = IRQ_HANDLED;
+
+		if (irq_status & R592_REG_MSC_FIFO_DMA_ERR) {
+			message("IRQ: DMA error");
+			error = -EIO;
+		} else {
+			dbg_verbose("IRQ: dma done");
+			error = 0;
+		}
+
+		r592_stop_dma(dev, error);
+		complete(&dev->dma_done);
+	}
+
+	spin_unlock_irqrestore(&dev->irq_lock, flags);
+	return ret;
+}
+
+/* External inteface: set settings */
+static int r592_set_param(struct memstick_host *host,
+			enum memstick_param param, int value)
+{
+	struct r592_device *dev = memstick_priv(host);
+
+	switch (param) {
+	case MEMSTICK_POWER:
+		switch (value) {
+		case MEMSTICK_POWER_ON:
+			return r592_enable_device(dev, true);
+		case MEMSTICK_POWER_OFF:
+			return r592_enable_device(dev, false);
+		default:
+			return -EINVAL;
+		}
+	case MEMSTICK_INTERFACE:
+		switch (value) {
+		case MEMSTICK_SERIAL:
+			return r592_set_mode(dev, 0);
+		case MEMSTICK_PAR4:
+			return r592_set_mode(dev, 1);
+		default:
+			return -EINVAL;
+		}
+	default:
+		return -EINVAL;
+	}
+}
+
+/* External interface: submit requests */
+static void r592_submit_req(struct memstick_host *host)
+{
+	struct r592_device *dev = memstick_priv(host);
+	unsigned long flags;
+
+	if (dev->req)
+		return;
+
+	spin_lock_irqsave(&dev->io_thread_lock, flags);
+	if (wake_up_process(dev->io_thread))
+		dbg_verbose("IO thread woken to process requests");
+	spin_unlock_irqrestore(&dev->io_thread_lock, flags);
+}
+
+static const struct pci_device_id r592_pci_id_tbl[] = {
+
+	{ PCI_VDEVICE(RICOH, 0x0592), },
+	{ },
+};
+
+/* Main entry */
+static int r592_probe(struct pci_dev *pdev, const struct pci_device_id *id)
+{
+	int error = -ENOMEM;
+	struct memstick_host *host;
+	struct r592_device *dev;
+
+	/* Allocate memory */
+	host = memstick_alloc_host(sizeof(struct r592_device), &pdev->dev);
+	if (!host)
+		goto error1;
+
+	dev = memstick_priv(host);
+	dev->host = host;
+	dev->pci_dev = pdev;
+	pci_set_drvdata(pdev, dev);
+
+	/* pci initialization */
+	error = pci_enable_device(pdev);
+	if (error)
+		goto error2;
+
+	pci_set_master(pdev);
+	error = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
+	if (error)
+		goto error3;
+
+	error = pci_request_regions(pdev, DRV_NAME);
+	if (error)
+		goto error3;
+
+	dev->mmio = pci_ioremap_bar(pdev, 0);
+	if (!dev->mmio)
+		goto error4;
+
+	dev->irq = pdev->irq;
+	spin_lock_init(&dev->irq_lock);
+	spin_lock_init(&dev->io_thread_lock);
+	init_completion(&dev->dma_done);
+	INIT_KFIFO(dev->pio_fifo);
+	setup_timer(&dev->detect_timer,
+		r592_detect_timer, (long unsigned int)dev);
+
+	/* Host initialization */
+	host->caps = MEMSTICK_CAP_PAR4;
+	host->request = r592_submit_req;
+	host->set_param = r592_set_param;
+	r592_check_dma(dev);
+
+	dev->io_thread = kthread_run(r592_process_thread, dev, "r592_io");
+	if (IS_ERR(dev->io_thread)) {
+		error = PTR_ERR(dev->io_thread);
+		goto error5;
+	}
+
+	/* This is just a precation, so don't fail */
+	dev->dummy_dma_page = pci_alloc_consistent(pdev, PAGE_SIZE,
+		&dev->dummy_dma_page_physical_address);
+	r592_stop_dma(dev , 0);
+
+	if (request_irq(dev->irq, &r592_irq, IRQF_SHARED,
+			  DRV_NAME, dev))
+		goto error6;
+
+	r592_update_card_detect(dev);
+	if (memstick_add_host(host))
+		goto error7;
+
+	message("driver successfully loaded");
+	return 0;
+error7:
+	free_irq(dev->irq, dev);
+error6:
+	if (dev->dummy_dma_page)
+		pci_free_consistent(pdev, PAGE_SIZE, dev->dummy_dma_page,
+			dev->dummy_dma_page_physical_address);
+
+	kthread_stop(dev->io_thread);
+error5:
+	iounmap(dev->mmio);
+error4:
+	pci_release_regions(pdev);
+error3:
+	pci_disable_device(pdev);
+error2:
+	memstick_free_host(host);
+error1:
+	return error;
+}
+
+static void r592_remove(struct pci_dev *pdev)
+{
+	int error = 0;
+	struct r592_device *dev = pci_get_drvdata(pdev);
+
+	/* Stop the processing thread.
+	That ensures that we won't take any more requests */
+	kthread_stop(dev->io_thread);
+
+	r592_enable_device(dev, false);
+
+	while (!error && dev->req) {
+		dev->req->error = -ETIME;
+		error = memstick_next_req(dev->host, &dev->req);
+	}
+	memstick_remove_host(dev->host);
+
+	free_irq(dev->irq, dev);
+	iounmap(dev->mmio);
+	pci_release_regions(pdev);
+	pci_disable_device(pdev);
+	memstick_free_host(dev->host);
+
+	if (dev->dummy_dma_page)
+		pci_free_consistent(pdev, PAGE_SIZE, dev->dummy_dma_page,
+			dev->dummy_dma_page_physical_address);
+}
+
+#ifdef CONFIG_PM
+static int r592_suspend(struct device *core_dev)
+{
+	struct pci_dev *pdev = to_pci_dev(core_dev);
+	struct r592_device *dev = pci_get_drvdata(pdev);
+
+	r592_clear_interrupts(dev);
+	memstick_suspend_host(dev->host);
+	del_timer_sync(&dev->detect_timer);
+	return 0;
+}
+
+static int r592_resume(struct device *core_dev)
+{
+	struct pci_dev *pdev = to_pci_dev(core_dev);
+	struct r592_device *dev = pci_get_drvdata(pdev);
+
+	r592_clear_interrupts(dev);
+	r592_enable_device(dev, false);
+	memstick_resume_host(dev->host);
+	r592_update_card_detect(dev);
+	return 0;
+}
+
+SIMPLE_DEV_PM_OPS(r592_pm_ops, r592_suspend, r592_resume);
+#endif
+
+MODULE_DEVICE_TABLE(pci, r592_pci_id_tbl);
+
+static struct pci_driver r852_pci_driver = {
+	.name		= DRV_NAME,
+	.id_table	= r592_pci_id_tbl,
+	.probe		= r592_probe,
+	.remove		= r592_remove,
+#ifdef CONFIG_PM
+	.driver.pm	= &r592_pm_ops,
+#endif
+};
+
+static __init int r592_module_init(void)
+{
+	return pci_register_driver(&r852_pci_driver);
+}
+
+static void __exit r592_module_exit(void)
+{
+	pci_unregister_driver(&r852_pci_driver);
+}
+
+module_init(r592_module_init);
+module_exit(r592_module_exit);
+
+module_param_named(enable_dma, r592_enable_dma, bool, S_IRUGO);
+MODULE_PARM_DESC(enable_dma, "Enable usage of the DMA (default)");
+module_param(debug, int, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(debug, "Debug level (0-3)");
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Maxim Levitsky <maximlevitsky@gmail.com>");
+MODULE_DESCRIPTION("Ricoh R5C592 Memstick/Memstick PRO card reader driver");
diff --git a/drivers/memstick/host/r592.h b/drivers/memstick/host/r592.h
new file mode 100644
index 000000000000..c5726c1e8832
--- /dev/null
+++ b/drivers/memstick/host/r592.h
@@ -0,0 +1,175 @@
+/*
+ * Copyright (C) 2010 - Maxim Levitsky
+ * driver for Ricoh memstick readers
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef R592_H
+
+#include <linux/memstick.h>
+#include <linux/spinlock.h>
+#include <linux/interrupt.h>
+#include <linux/workqueue.h>
+#include <linux/kfifo.h>
+#include <linux/ctype.h>
+
+/* write to this reg (number,len) triggers TPC execution */
+#define R592_TPC_EXEC			0x00
+#define R592_TPC_EXEC_LEN_SHIFT		16		/* Bits 16..25 are TPC len */
+#define R592_TPC_EXEC_BIG_FIFO		(1 << 26)	/* If bit 26 is set, large fifo is used (reg 48) */
+#define R592_TPC_EXEC_TPC_SHIFT		28		/* Bits 28..31 are the TPC number */
+
+
+/* Window for small TPC fifo (big endian)*/
+/* reads and writes always are done in  8 byte chunks */
+/* Not used in driver, because large fifo does better job */
+#define R592_SFIFO			0x08
+
+
+/* Status register (ms int, small fifo, IO)*/
+#define R592_STATUS			0x10
+							/* Parallel INT bits */
+#define R592_STATUS_P_CMDNACK		(1 << 16)	/* INT reg: NACK (parallel mode) */
+#define R592_STATUS_P_BREQ		(1 << 17)	/* INT reg: card ready (parallel mode)*/
+#define R592_STATUS_P_INTERR		(1 << 18)	/* INT reg: int error (parallel mode)*/
+#define R592_STATUS_P_CED		(1 << 19)	/* INT reg: command done (parallel mode) */
+
+							/* Fifo status */
+#define R592_STATUS_SFIFO_FULL		(1 << 20)	/* Small Fifo almost full (last chunk is written) */
+#define R592_STATUS_SFIFO_EMPTY		(1 << 21)	/* Small Fifo empty */
+
+							/* Error detection via CRC */
+#define R592_STATUS_SEND_ERR		(1 << 24)	/* Send failed */
+#define R592_STATUS_RECV_ERR		(1 << 25)	/* Receive failed */
+
+							/* Card state */
+#define R592_STATUS_RDY			(1 << 28)	/* RDY signal received */
+#define R592_STATUS_CED			(1 << 29)	/* INT: Command done (serial mode)*/
+#define R592_STATUS_SFIFO_INPUT		(1 << 30)	/* Small fifo received data*/
+
+#define R592_SFIFO_SIZE			32		/* total size of small fifo is 32 bytes */
+#define R592_SFIFO_PACKET		8		/* packet size of small fifo */
+
+/* IO control */
+#define R592_IO				0x18
+#define	R592_IO_16			(1 << 16)	/* Set by default, can be cleared */
+#define	R592_IO_18			(1 << 18)	/* Set by default, can be cleared */
+#define	R592_IO_SERIAL1			(1 << 20)	/* Set by default, can be cleared, (cleared on parallel) */
+#define	R592_IO_22			(1 << 22)	/* Set by default, can be cleared */
+#define R592_IO_DIRECTION		(1 << 24)	/* TPC direction (1 write 0 read) */
+#define	R592_IO_26			(1 << 26)	/* Set by default, can be cleared */
+#define	R592_IO_SERIAL2			(1 << 30)	/* Set by default, can be cleared (cleared on parallel), serial doesn't work if unset */
+#define R592_IO_RESET			(1 << 31)	/* Reset, sets defaults*/
+
+
+/* Turns hardware on/off */
+#define R592_POWER			0x20		/* bits 0-7 writeable */
+#define R592_POWER_0			(1 << 0)	/* set on start, cleared on stop - must be set*/
+#define R592_POWER_1			(1 << 1)	/* set on start, cleared on stop - must be set*/
+#define R592_POWER_3			(1 << 3)	/* must be clear */
+#define R592_POWER_20			(1 << 5)	/* set before switch to parallel */
+
+/* IO mode*/
+#define R592_IO_MODE			0x24
+#define R592_IO_MODE_SERIAL		1
+#define R592_IO_MODE_PARALLEL		3
+
+
+/* IRQ,card detection,large fifo (first word irq status, second enable) */
+/* IRQs are ACKed by clearing the bits */
+#define R592_REG_MSC			0x28
+#define R592_REG_MSC_PRSNT		(1 << 1)	/* card present (only status)*/
+#define R592_REG_MSC_IRQ_INSERT		(1 << 8)	/* detect insert / card insered */
+#define R592_REG_MSC_IRQ_REMOVE		(1 << 9)	/* detect removal / card removed */
+#define R592_REG_MSC_FIFO_EMPTY		(1 << 10)	/* fifo is empty */
+#define R592_REG_MSC_FIFO_DMA_DONE	(1 << 11)	/* dma enable / dma done */
+
+#define R592_REG_MSC_FIFO_USER_ORN	(1 << 12)	/* set if software reads empty fifo (if R592_REG_MSC_FIFO_EMPTY is set) */
+#define R592_REG_MSC_FIFO_MISMATH	(1 << 13)	/* set if amount of data in fifo doesn't match amount in TPC */
+#define R592_REG_MSC_FIFO_DMA_ERR	(1 << 14)	/* IO failure */
+#define R592_REG_MSC_LED		(1 << 15)	/* clear to turn led off (only status)*/
+
+#define DMA_IRQ_ACK_MASK \
+	(R592_REG_MSC_FIFO_DMA_DONE | R592_REG_MSC_FIFO_DMA_ERR)
+
+#define DMA_IRQ_EN_MASK (DMA_IRQ_ACK_MASK << 16)
+
+#define IRQ_ALL_ACK_MASK 0x00007F00
+#define IRQ_ALL_EN_MASK (IRQ_ALL_ACK_MASK << 16)
+
+/* DMA address for large FIFO read/writes*/
+#define R592_FIFO_DMA			0x2C
+
+/* PIO access to large FIFO (512 bytes) (big endian)*/
+#define R592_FIFO_PIO			0x30
+#define R592_LFIFO_SIZE			512		/* large fifo size */
+
+
+/* large FIFO DMA settings */
+#define R592_FIFO_DMA_SETTINGS		0x34
+#define R592_FIFO_DMA_SETTINGS_EN	(1 << 0)	/* DMA enabled */
+#define R592_FIFO_DMA_SETTINGS_DIR	(1 << 1)	/* Dma direction (1 read, 0 write) */
+#define R592_FIFO_DMA_SETTINGS_CAP	(1 << 24)	/* Dma is aviable */
+
+/* Maybe just an delay */
+/* Bits 17..19 are just number */
+/* bit 16 is set, then bit 20 is waited */
+/* time to wait is about 50 spins * 2 ^ (bits 17..19) */
+/* seems to be possible just to ignore */
+/* Probably debug register */
+#define R592_REG38			0x38
+#define R592_REG38_CHANGE		(1 << 16)	/* Start bit */
+#define R592_REG38_DONE			(1 << 20)	/* HW set this after the delay */
+#define R592_REG38_SHIFT		17
+
+/* Debug register, written (0xABCDEF00) when error happens - not used*/
+#define R592_REG_3C			0x3C
+
+struct r592_device {
+	struct pci_dev *pci_dev;
+	struct memstick_host	*host;		/* host backpointer */
+	struct memstick_request *req;		/* current request */
+
+	/* Registers, IRQ */
+	void __iomem *mmio;
+	int irq;
+	spinlock_t irq_lock;
+	spinlock_t io_thread_lock;
+	struct timer_list detect_timer;
+
+	struct task_struct *io_thread;
+	bool parallel_mode;
+
+	DECLARE_KFIFO(pio_fifo, u8, sizeof(u32));
+
+	/* DMA area */
+	int dma_capable;
+	int dma_error;
+	struct completion dma_done;
+	void *dummy_dma_page;
+	dma_addr_t dummy_dma_page_physical_address;
+
+};
+
+#define DRV_NAME "r592"
+
+
+#define message(format, ...) \
+	printk(KERN_INFO DRV_NAME ": " format "\n", ## __VA_ARGS__)
+
+#define __dbg(level, format, ...) \
+	do { \
+		if (debug >= level) \
+			printk(KERN_DEBUG DRV_NAME \
+				": " format "\n", ## __VA_ARGS__); \
+	} while (0)
+
+
+#define dbg(format, ...)		__dbg(1, format, ## __VA_ARGS__)
+#define dbg_verbose(format, ...)	__dbg(2, format, ## __VA_ARGS__)
+#define dbg_reg(format, ...)		__dbg(3, format, ## __VA_ARGS__)
+
+#endif
diff --git a/drivers/message/fusion/lsi/mpi_log_fc.h b/drivers/message/fusion/lsi/mpi_log_fc.h
index face6e7acc72..03be8b217709 100644
--- a/drivers/message/fusion/lsi/mpi_log_fc.h
+++ b/drivers/message/fusion/lsi/mpi_log_fc.h
@@ -38,8 +38,8 @@ typedef enum _MpiIocLogInfoFc
 {
     MPI_IOCLOGINFO_FC_INIT_BASE                     = 0x20000000,
     MPI_IOCLOGINFO_FC_INIT_ERROR_OUT_OF_ORDER_FRAME = 0x20000001, /* received an out of order frame - unsupported */
-    MPI_IOCLOGINFO_FC_INIT_ERROR_BAD_START_OF_FRAME = 0x20000002, /* Bad Rx Frame, bad start of frame primative */
-    MPI_IOCLOGINFO_FC_INIT_ERROR_BAD_END_OF_FRAME   = 0x20000003, /* Bad Rx Frame, bad end of frame primative */
+    MPI_IOCLOGINFO_FC_INIT_ERROR_BAD_START_OF_FRAME = 0x20000002, /* Bad Rx Frame, bad start of frame primitive */
+    MPI_IOCLOGINFO_FC_INIT_ERROR_BAD_END_OF_FRAME   = 0x20000003, /* Bad Rx Frame, bad end of frame primitive */
     MPI_IOCLOGINFO_FC_INIT_ERROR_OVER_RUN           = 0x20000004, /* Bad Rx Frame, overrun */
     MPI_IOCLOGINFO_FC_INIT_ERROR_RX_OTHER           = 0x20000005, /* Other errors caught by IOC which require retries */
     MPI_IOCLOGINFO_FC_INIT_ERROR_SUBPROC_DEAD       = 0x20000006, /* Main processor could not initialize sub-processor */
diff --git a/drivers/message/fusion/lsi/mpi_log_sas.h b/drivers/message/fusion/lsi/mpi_log_sas.h
index 8b04810df469..f62960b5d527 100644
--- a/drivers/message/fusion/lsi/mpi_log_sas.h
+++ b/drivers/message/fusion/lsi/mpi_log_sas.h
@@ -56,9 +56,9 @@
 #define IOP_LOGINFO_CODE_FWUPLOAD_NO_FLASH_AVAILABLE         (0x0003E000) /* Tried to upload from flash, but there is none */
 #define IOP_LOGINFO_CODE_FWUPLOAD_UNKNOWN_IMAGE_TYPE         (0x0003E001) /* ImageType field contents were invalid */
 #define IOP_LOGINFO_CODE_FWUPLOAD_WRONG_IMAGE_SIZE           (0x0003E002) /* ImageSize field in TCSGE was bad/offset in MfgPg 4 was wrong */
-#define IOP_LOGINFO_CODE_FWUPLOAD_ENTIRE_FLASH_UPLOAD_FAILED (0x0003E003) /* Error occured while attempting to upload the entire flash */
-#define IOP_LOGINFO_CODE_FWUPLOAD_REGION_UPLOAD_FAILED       (0x0003E004) /* Error occured while attempting to upload single flash region */
-#define IOP_LOGINFO_CODE_FWUPLOAD_DMA_FAILURE                (0x0003E005) /* Problem occured while DMAing FW to host memory */
+#define IOP_LOGINFO_CODE_FWUPLOAD_ENTIRE_FLASH_UPLOAD_FAILED (0x0003E003) /* Error occurred while attempting to upload the entire flash */
+#define IOP_LOGINFO_CODE_FWUPLOAD_REGION_UPLOAD_FAILED       (0x0003E004) /* Error occurred while attempting to upload single flash region */
+#define IOP_LOGINFO_CODE_FWUPLOAD_DMA_FAILURE                (0x0003E005) /* Problem occurred while DMAing FW to host memory */
 
 #define IOP_LOGINFO_CODE_DIAG_MSG_ERROR                      (0x00040000) /* Error handling diag msg - or'd with diag status */
 
@@ -187,8 +187,8 @@
 #define PL_LOGINFO_SUB_CODE_BREAK_ON_INCOMPLETE_BREAK_RCVD   (0x00005000)
 
 #define PL_LOGINFO_CODE_ENCL_MGMT_SMP_FRAME_FAILURE          (0x00200000) /* Can't get SMP Frame */
-#define PL_LOGINFO_CODE_ENCL_MGMT_SMP_READ_ERROR             (0x00200010) /* Error occured on SMP Read */
-#define PL_LOGINFO_CODE_ENCL_MGMT_SMP_WRITE_ERROR            (0x00200020) /* Error occured on SMP Write */
+#define PL_LOGINFO_CODE_ENCL_MGMT_SMP_READ_ERROR             (0x00200010) /* Error occurred on SMP Read */
+#define PL_LOGINFO_CODE_ENCL_MGMT_SMP_WRITE_ERROR            (0x00200020) /* Error occurred on SMP Write */
 #define PL_LOGINFO_CODE_ENCL_MGMT_NOT_SUPPORTED_ON_ENCL      (0x00200040) /* Encl Mgmt services not available for this WWID */
 #define PL_LOGINFO_CODE_ENCL_MGMT_ADDR_MODE_NOT_SUPPORTED    (0x00200050) /* Address Mode not suppored */
 #define PL_LOGINFO_CODE_ENCL_MGMT_BAD_SLOT_NUM               (0x00200060) /* Invalid Slot Number in SEP Msg */
@@ -207,8 +207,8 @@
 #define PL_LOGINFO_DA_SEP_RECEIVED_NACK_FROM_SLAVE           (0x00200103) /* SEP NACK'd, it is busy */
 #define PL_LOGINFO_DA_SEP_DID_NOT_RECEIVE_ACK                (0x00200104) /* SEP didn't rcv. ACK (Last Rcvd Bit = 1) */
 #define PL_LOGINFO_DA_SEP_BAD_STATUS_HDR_CHKSUM              (0x00200105) /* SEP stopped or sent bad chksum in Hdr */
-#define PL_LOGINFO_DA_SEP_STOP_ON_DATA                       (0x00200106) /* SEP stopped while transfering data */
-#define PL_LOGINFO_DA_SEP_STOP_ON_SENSE_DATA                 (0x00200107) /* SEP stopped while transfering sense data */
+#define PL_LOGINFO_DA_SEP_STOP_ON_DATA                       (0x00200106) /* SEP stopped while transferring data */
+#define PL_LOGINFO_DA_SEP_STOP_ON_SENSE_DATA                 (0x00200107) /* SEP stopped while transferring sense data */
 #define PL_LOGINFO_DA_SEP_UNSUPPORTED_SCSI_STATUS_1          (0x00200108) /* SEP returned unknown scsi status */
 #define PL_LOGINFO_DA_SEP_UNSUPPORTED_SCSI_STATUS_2          (0x00200109) /* SEP returned unknown scsi status */
 #define PL_LOGINFO_DA_SEP_CHKSUM_ERROR_AFTER_STOP            (0x0020010A) /* SEP returned bad chksum after STOP */
diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c
index ec8080c98081..fa15e853d4e8 100644
--- a/drivers/message/fusion/mptbase.c
+++ b/drivers/message/fusion/mptbase.c
@@ -3435,7 +3435,7 @@ SendPortEnable(MPT_ADAPTER *ioc, int portnum, int sleepFlag)
  *	If memory has already been allocated, the same (cached) value
  *	is returned.
  *
- *	Return 0 if successfull, or non-zero for failure
+ *	Return 0 if successful, or non-zero for failure
  **/
 int
 mpt_alloc_fw_memory(MPT_ADAPTER *ioc, int size)
@@ -6932,7 +6932,7 @@ EXPORT_SYMBOL(mpt_halt_firmware);
  *	Message Unit Reset - instructs the IOC to reset the Reply Post and
  *	Free FIFO's. All the Message Frames on Reply Free FIFO are discarded.
  *	All posted buffers are freed, and event notification is turned off.
- *	IOC doesnt reply to any outstanding request. This will transfer IOC
+ *	IOC doesn't reply to any outstanding request. This will transfer IOC
  *	to READY state.
  **/
 int
@@ -7905,7 +7905,7 @@ mpt_spi_log_info(MPT_ADAPTER *ioc, u32 log_info)
 		    "Owner", 					/* 15h */
 		"Open Transmit DMA Abort",			/* 16h */
 		"IO Device Missing Delay Retry",		/* 17h */
-		"IO Cancelled Due to Recieve Error",		/* 18h */
+		"IO Cancelled Due to Receive Error",		/* 18h */
 		NULL,						/* 19h */
 		NULL,						/* 1Ah */
 		NULL,						/* 1Bh */
diff --git a/drivers/message/fusion/mptctl.c b/drivers/message/fusion/mptctl.c
index 878bda0cce70..6e6e16aab9da 100644
--- a/drivers/message/fusion/mptctl.c
+++ b/drivers/message/fusion/mptctl.c
@@ -985,7 +985,7 @@ retry_wait:
 	ReplyMsg = (pFWDownloadReply_t)iocp->ioctl_cmds.reply;
 	iocstat = le16_to_cpu(ReplyMsg->IOCStatus) & MPI_IOCSTATUS_MASK;
 	if (iocstat == MPI_IOCSTATUS_SUCCESS) {
-		printk(MYIOC_s_INFO_FMT "F/W update successfull!\n", iocp->name);
+		printk(MYIOC_s_INFO_FMT "F/W update successful!\n", iocp->name);
 		return 0;
 	} else if (iocstat == MPI_IOCSTATUS_INVALID_FUNCTION) {
 		printk(MYIOC_s_WARN_FMT "Hmmm...  F/W download not supported!?!\n",
@@ -2407,7 +2407,7 @@ done_free_mem:
 	}
 
 	/* mf is null if command issued successfully
-	 * otherwise, failure occured after mf acquired.
+	 * otherwise, failure occurred after mf acquired.
 	 */
 	if (mf)
 		mpt_free_msg_frame(ioc, mf);
diff --git a/drivers/message/fusion/mptsas.c b/drivers/message/fusion/mptsas.c
index f5a14afad2cd..66f94125de4e 100644
--- a/drivers/message/fusion/mptsas.c
+++ b/drivers/message/fusion/mptsas.c
@@ -307,7 +307,7 @@ mptsas_requeue_fw_event(MPT_ADAPTER *ioc, struct fw_event_work *fw_event,
 	spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
 }
 
-/* free memory assoicated to a sas firmware event */
+/* free memory associated to a sas firmware event */
 static void
 mptsas_free_fw_event(MPT_ADAPTER *ioc, struct fw_event_work *fw_event)
 {
@@ -1094,7 +1094,7 @@ mptsas_block_io_starget(struct scsi_target *starget)
 /**
  * mptsas_target_reset_queue
  *
- * Receive request for TARGET_RESET after recieving an firmware
+ * Receive request for TARGET_RESET after receiving an firmware
  * event NOT_RESPONDING_EVENT, then put command in link list
  * and queue if task_queue already in use.
  *
@@ -1403,7 +1403,7 @@ mptsas_sas_enclosure_pg0(MPT_ADAPTER *ioc, struct mptsas_enclosure *enclosure,
 /**
  *	mptsas_add_end_device - report a new end device to sas transport layer
  *	@ioc: Pointer to MPT_ADAPTER structure
- *	@phy_info: decribes attached device
+ *	@phy_info: describes attached device
  *
  *	return (0) success (1) failure
  *
@@ -1481,7 +1481,7 @@ mptsas_add_end_device(MPT_ADAPTER *ioc, struct mptsas_phyinfo *phy_info)
 /**
  *	mptsas_del_end_device - report a deleted end device to sas transport layer
  *	@ioc: Pointer to MPT_ADAPTER structure
- *	@phy_info: decribes attached device
+ *	@phy_info: describes attached device
  *
  **/
 static void
diff --git a/drivers/message/i2o/README b/drivers/message/i2o/README
index 911fc3021e3b..f072a8eb3041 100644
--- a/drivers/message/i2o/README
+++ b/drivers/message/i2o/README
@@ -53,7 +53,7 @@ Symbios Logic (Now LSI)
 BoxHill Corporation
 	Loan of initial FibreChannel disk array used for development work.
 
-European Comission
+European Commission
 	Funding the work done by the University of Helsinki
 
 SysKonnect
diff --git a/drivers/message/i2o/device.c b/drivers/message/i2o/device.c
index 0ee4264f5db7..4547db99f7da 100644
--- a/drivers/message/i2o/device.c
+++ b/drivers/message/i2o/device.c
@@ -65,7 +65,7 @@ int i2o_device_claim(struct i2o_device *dev)
 
 	rc = i2o_device_issue_claim(dev, I2O_CMD_UTIL_CLAIM, I2O_CLAIM_PRIMARY);
 	if (!rc)
-		pr_debug("i2o: claim of device %d succeded\n",
+		pr_debug("i2o: claim of device %d succeeded\n",
 			 dev->lct_data.tid);
 	else
 		pr_debug("i2o: claim of device %d failed %d\n",
@@ -110,7 +110,7 @@ int i2o_device_claim_release(struct i2o_device *dev)
 	}
 
 	if (!rc)
-		pr_debug("i2o: claim release of device %d succeded\n",
+		pr_debug("i2o: claim release of device %d succeeded\n",
 			 dev->lct_data.tid);
 	else
 		pr_debug("i2o: claim release of device %d failed %d\n",
@@ -248,7 +248,7 @@ static int i2o_device_add(struct i2o_controller *c, i2o_lct_entry *entry)
 			goto unreg_dev;
 	}
 
-	/* create user entries refering to this device */
+	/* create user entries referring to this device */
 	list_for_each_entry(tmp, &c->devices, list)
 	    if ((tmp->lct_data.user_tid == i2o_dev->lct_data.tid)
 		&& (tmp != i2o_dev)) {
@@ -267,7 +267,7 @@ static int i2o_device_add(struct i2o_controller *c, i2o_lct_entry *entry)
 			goto rmlink1;
 	}
 
-	/* create parent entries refering to this device */
+	/* create parent entries referring to this device */
 	list_for_each_entry(tmp, &c->devices, list)
 	    if ((tmp->lct_data.parent_tid == i2o_dev->lct_data.tid)
 		&& (tmp != i2o_dev)) {
diff --git a/drivers/message/i2o/i2o_block.c b/drivers/message/i2o/i2o_block.c
index 47ec5bc0ed21..643ad52e3ca2 100644
--- a/drivers/message/i2o/i2o_block.c
+++ b/drivers/message/i2o/i2o_block.c
@@ -610,7 +610,7 @@ static int i2o_block_release(struct gendisk *disk, fmode_t mode)
 
 	/*
 	 * This is to deail with the case of an application
-	 * opening a device and then the device dissapears while
+	 * opening a device and then the device disappears while
 	 * it's in use, and then the application tries to release
 	 * it.  ex: Unmounting a deleted RAID volume at reboot.
 	 * If we send messages, it will just cause FAILs since
@@ -717,7 +717,7 @@ static unsigned int i2o_block_check_events(struct gendisk *disk,
 
 /**
  *	i2o_block_transfer - Transfer a request to/from the I2O controller
- *	@req: the request which should be transfered
+ *	@req: the request which should be transferred
  *
  *	This function converts the request into a I2O message. The necessary
  *	DMA buffers are allocated and after everything is setup post the message
diff --git a/drivers/message/i2o/i2o_block.h b/drivers/message/i2o/i2o_block.h
index 67f921b4419b..cf8873cbca3f 100644
--- a/drivers/message/i2o/i2o_block.h
+++ b/drivers/message/i2o/i2o_block.h
@@ -73,7 +73,7 @@ struct i2o_block_device {
 	struct i2o_device *i2o_dev;	/* pointer to I2O device */
 	struct gendisk *gd;
 	spinlock_t lock;	/* queue lock */
-	struct list_head open_queue;	/* list of transfered, but unfinished
+	struct list_head open_queue;	/* list of transferred, but unfinished
 					   requests */
 	unsigned int open_queue_depth;	/* number of requests in the queue */
 
diff --git a/drivers/message/i2o/i2o_scsi.c b/drivers/message/i2o/i2o_scsi.c
index 97bdf82ec905..f003957e8e1c 100644
--- a/drivers/message/i2o/i2o_scsi.c
+++ b/drivers/message/i2o/i2o_scsi.c
@@ -204,7 +204,7 @@ static int i2o_scsi_remove(struct device *dev)
  *	i2o_scsi_probe - verify if dev is a I2O SCSI device and install it
  *	@dev: device to verify if it is a I2O SCSI device
  *
- *	Retrieve channel, id and lun for I2O device. If everthing goes well
+ *	Retrieve channel, id and lun for I2O device. If everything goes well
  *	register the I2O device as SCSI device on the I2O SCSI controller.
  *
  *	Returns 0 on success or negative error code on failure.
diff --git a/drivers/mfd/88pm860x-core.c b/drivers/mfd/88pm860x-core.c
index 9c511c1604a5..011cb6ce861b 100644
--- a/drivers/mfd/88pm860x-core.c
+++ b/drivers/mfd/88pm860x-core.c
@@ -416,7 +416,6 @@ static int __devinit device_irq_init(struct pm860x_chip *chip,
 				: chip->companion;
 	unsigned char status_buf[INT_STATUS_NUM];
 	unsigned long flags = IRQF_TRIGGER_FALLING | IRQF_ONESHOT;
-	struct irq_desc *desc;
 	int i, data, mask, ret = -EINVAL;
 	int __irq;
 
@@ -468,19 +467,17 @@ static int __devinit device_irq_init(struct pm860x_chip *chip,
 	if (!chip->core_irq)
 		goto out;
 
-	desc = irq_to_desc(chip->core_irq);
-
 	/* register IRQ by genirq */
 	for (i = 0; i < ARRAY_SIZE(pm860x_irqs); i++) {
 		__irq = i + chip->irq_base;
-		set_irq_chip_data(__irq, chip);
-		set_irq_chip_and_handler(__irq, &pm860x_irq_chip,
+		irq_set_chip_data(__irq, chip);
+		irq_set_chip_and_handler(__irq, &pm860x_irq_chip,
 					 handle_edge_irq);
-		set_irq_nested_thread(__irq, 1);
+		irq_set_nested_thread(__irq, 1);
 #ifdef CONFIG_ARM
 		set_irq_flags(__irq, IRQF_VALID);
 #else
-		set_irq_noprobe(__irq);
+		irq_set_noprobe(__irq);
 #endif
 	}
 
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index a9a1af49281e..3ed3ff06be5d 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -60,15 +60,6 @@ config MFD_ASIC3
 	  This driver supports the ASIC3 multifunction chip found on many
 	  PDAs (mainly iPAQ and HTC based ones)
 
-config MFD_SH_MOBILE_SDHI
-	bool "Support for SuperH Mobile SDHI"
-	depends on SUPERH || ARCH_SHMOBILE
-	select MFD_CORE
-	select TMIO_MMC_DMA
-	 ---help---
-	  This driver supports the SDHI hardware block found in many
-	  SuperH Mobile SoCs.
-
 config MFD_DAVINCI_VOICECODEC
 	tristate
 	select MFD_CORE
@@ -133,6 +124,7 @@ config TPS6105X
 	tristate "TPS61050/61052 Boost Converters"
 	depends on I2C
 	select REGULATOR
+	select MFD_CORE
 	select REGULATOR_FIXED_VOLTAGE
 	help
 	  This option enables a driver for the TP61050/TPS61052
@@ -209,7 +201,7 @@ config TWL4030_POWER
 	  as clock request handshaking.
 
 	  This driver uses board-specific data to initialize the resources
-	  and load scripts controling which resources are switched off/on
+	  and load scripts controlling which resources are switched off/on
 	  or reset when a sleep, wakeup or warm reset event occurs.
 
 config TWL4030_CODEC
@@ -265,11 +257,6 @@ config MFD_TMIO
 	bool
 	default n
 
-config TMIO_MMC_DMA
-	bool
-	select DMA_ENGINE
-	select DMADEVICES
-
 config MFD_T7L66XB
 	bool "Support Toshiba T7L66XB"
 	depends on ARM && HAVE_CLK
@@ -591,7 +578,7 @@ config AB3550_CORE
 config MFD_CS5535
 	tristate "Support for CS5535 and CS5536 southbridge core functions"
 	select MFD_CORE
-	depends on PCI
+	depends on PCI && X86
 	---help---
 	  This is the core driver for CS5535/CS5536 MFD functions.  This is
           necessary for using the board's GPIO and MFGPT functionality.
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index 47f5709f3828..419caa9d7dcf 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -6,7 +6,6 @@
 obj-$(CONFIG_MFD_88PM860X)	+= 88pm860x.o
 obj-$(CONFIG_MFD_SM501)		+= sm501.o
 obj-$(CONFIG_MFD_ASIC3)		+= asic3.o tmio_core.o
-obj-$(CONFIG_MFD_SH_MOBILE_SDHI)		+= sh_mobile_sdhi.o
 
 obj-$(CONFIG_HTC_EGPIO)		+= htc-egpio.o
 obj-$(CONFIG_HTC_PASIC3)	+= htc-pasic3.o
@@ -63,7 +62,7 @@ obj-$(CONFIG_UCB1400_CORE)	+= ucb1400_core.o
 obj-$(CONFIG_PMIC_DA903X)	+= da903x.o
 max8925-objs			:= max8925-core.o max8925-i2c.o
 obj-$(CONFIG_MFD_MAX8925)	+= max8925.o
-obj-$(CONFIG_MFD_MAX8997)	+= max8997.o
+obj-$(CONFIG_MFD_MAX8997)	+= max8997.o max8997-irq.o
 obj-$(CONFIG_MFD_MAX8998)	+= max8998.o max8998-irq.o
 
 pcf50633-objs			:= pcf50633-core.o pcf50633-irq.o
diff --git a/drivers/mfd/ab3550-core.c b/drivers/mfd/ab3550-core.c
index c12d04285226..ff86acf3e6bd 100644
--- a/drivers/mfd/ab3550-core.c
+++ b/drivers/mfd/ab3550-core.c
@@ -668,7 +668,7 @@ static int ab3550_startup_irq_enabled(struct device *dev, unsigned int irq)
 	struct ab3550_platform_data *plf_data;
 	bool val;
 
-	ab = get_irq_chip_data(irq);
+	ab = irq_get_chip_data(irq);
 	plf_data = ab->i2c_client[0]->dev.platform_data;
 	irq -= plf_data->irq.base;
 	val = ((ab->startup_events[irq / 8] & BIT(irq % 8)) != 0);
@@ -1296,14 +1296,14 @@ static int __init ab3550_probe(struct i2c_client *client,
 		unsigned int irq;
 
 		irq = ab3550_plf_data->irq.base + i;
-		set_irq_chip_data(irq, ab);
-		set_irq_chip_and_handler(irq, &ab3550_irq_chip,
-			handle_simple_irq);
-		set_irq_nested_thread(irq, 1);
+		irq_set_chip_data(irq, ab);
+		irq_set_chip_and_handler(irq, &ab3550_irq_chip,
+					 handle_simple_irq);
+		irq_set_nested_thread(irq, 1);
 #ifdef CONFIG_ARM
 		set_irq_flags(irq, IRQF_VALID);
 #else
-		set_irq_noprobe(irq);
+		irq_set_noprobe(irq);
 #endif
 	}
 
diff --git a/drivers/mfd/ab8500-core.c b/drivers/mfd/ab8500-core.c
index 6e185b272d00..67d01c938284 100644
--- a/drivers/mfd/ab8500-core.c
+++ b/drivers/mfd/ab8500-core.c
@@ -334,14 +334,14 @@ static int ab8500_irq_init(struct ab8500 *ab8500)
 	int irq;
 
 	for (irq = base; irq < base + AB8500_NR_IRQS; irq++) {
-		set_irq_chip_data(irq, ab8500);
-		set_irq_chip_and_handler(irq, &ab8500_irq_chip,
+		irq_set_chip_data(irq, ab8500);
+		irq_set_chip_and_handler(irq, &ab8500_irq_chip,
 					 handle_simple_irq);
-		set_irq_nested_thread(irq, 1);
+		irq_set_nested_thread(irq, 1);
 #ifdef CONFIG_ARM
 		set_irq_flags(irq, IRQF_VALID);
 #else
-		set_irq_noprobe(irq);
+		irq_set_noprobe(irq);
 #endif
 	}
 
@@ -357,11 +357,20 @@ static void ab8500_irq_remove(struct ab8500 *ab8500)
 #ifdef CONFIG_ARM
 		set_irq_flags(irq, 0);
 #endif
-		set_irq_chip_and_handler(irq, NULL, NULL);
-		set_irq_chip_data(irq, NULL);
+		irq_set_chip_and_handler(irq, NULL, NULL);
+		irq_set_chip_data(irq, NULL);
 	}
 }
 
+static struct resource ab8500_gpio_resources[] = {
+	{
+		.name	= "GPIO_INT6",
+		.start	= AB8500_INT_GPIO6R,
+		.end	= AB8500_INT_GPIO41F,
+		.flags	= IORESOURCE_IRQ,
+	}
+};
+
 static struct resource ab8500_gpadc_resources[] = {
 	{
 		.name	= "HW_CONV_END",
@@ -596,6 +605,11 @@ static struct mfd_cell ab8500_devs[] = {
 		.name = "ab8500-regulator",
 	},
 	{
+		.name = "ab8500-gpio",
+		.num_resources = ARRAY_SIZE(ab8500_gpio_resources),
+		.resources = ab8500_gpio_resources,
+	},
+	{
 		.name = "ab8500-gpadc",
 		.num_resources = ARRAY_SIZE(ab8500_gpadc_resources),
 		.resources = ab8500_gpadc_resources,
diff --git a/drivers/mfd/ab8500-gpadc.c b/drivers/mfd/ab8500-gpadc.c
index bc93b2e8230c..6421ad1160de 100644
--- a/drivers/mfd/ab8500-gpadc.c
+++ b/drivers/mfd/ab8500-gpadc.c
@@ -314,7 +314,7 @@ int ab8500_gpadc_convert(struct ab8500_gpadc *gpadc, u8 input)
 	/* wait for completion of conversion */
 	if (!wait_for_completion_timeout(&gpadc->ab8500_gpadc_complete, 2*HZ)) {
 		dev_err(gpadc->dev,
-			"timeout: didnt recieve GPADC conversion interrupt\n");
+			"timeout: didn't receive GPADC conversion interrupt\n");
 		ret = -EINVAL;
 		goto out;
 	}
diff --git a/drivers/mfd/ab8500-i2c.c b/drivers/mfd/ab8500-i2c.c
index 6820327adf4a..821e6b86afd2 100644
--- a/drivers/mfd/ab8500-i2c.c
+++ b/drivers/mfd/ab8500-i2c.c
@@ -97,7 +97,7 @@ static void __exit ab8500_i2c_exit(void)
 {
 	platform_driver_unregister(&ab8500_i2c_driver);
 }
-subsys_initcall(ab8500_i2c_init);
+arch_initcall(ab8500_i2c_init);
 module_exit(ab8500_i2c_exit);
 
 MODULE_AUTHOR("Mattias WALLIN <mattias.wallin@stericsson.com");
diff --git a/drivers/mfd/asic3.c b/drivers/mfd/asic3.c
index 0241f08fc00d..d4a851c6b5bf 100644
--- a/drivers/mfd/asic3.c
+++ b/drivers/mfd/asic3.c
@@ -139,13 +139,12 @@ static void asic3_irq_flip_edge(struct asic3 *asic,
 
 static void asic3_irq_demux(unsigned int irq, struct irq_desc *desc)
 {
+	struct asic3 *asic = irq_desc_get_handler_data(desc);
+	struct irq_data *data = irq_desc_get_irq_data(desc);
 	int iter, i;
 	unsigned long flags;
-	struct asic3 *asic;
-
-	desc->irq_data.chip->irq_ack(&desc->irq_data);
 
-	asic = get_irq_data(irq);
+	data->chip->irq_ack(irq_data);
 
 	for (iter = 0 ; iter < MAX_ASIC_ISR_LOOPS; iter++) {
 		u32 status;
@@ -188,8 +187,7 @@ static void asic3_irq_demux(unsigned int irq, struct irq_desc *desc)
 					irqnr = asic->irq_base +
 						(ASIC3_GPIOS_PER_BANK * bank)
 						+ i;
-					desc = irq_to_desc(irqnr);
-					desc->handle_irq(irqnr, desc);
+					generic_handle_irq(irqnr);
 					if (asic->irq_bothedge[bank] & bit)
 						asic3_irq_flip_edge(asic, base,
 								    bit);
@@ -200,11 +198,8 @@ static void asic3_irq_demux(unsigned int irq, struct irq_desc *desc)
 		/* Handle remaining IRQs in the status register */
 		for (i = ASIC3_NUM_GPIOS; i < ASIC3_NR_IRQS; i++) {
 			/* They start at bit 4 and go up */
-			if (status & (1 << (i - ASIC3_NUM_GPIOS + 4))) {
-				desc = irq_to_desc(asic->irq_base + i);
-				desc->handle_irq(asic->irq_base + i,
-						 desc);
-			}
+			if (status & (1 << (i - ASIC3_NUM_GPIOS + 4)))
+				generic_handle_irq(asic->irq_base + i);
 		}
 	}
 
@@ -393,21 +388,21 @@ static int __init asic3_irq_probe(struct platform_device *pdev)
 
 	for (irq = irq_base; irq < irq_base + ASIC3_NR_IRQS; irq++) {
 		if (irq < asic->irq_base + ASIC3_NUM_GPIOS)
-			set_irq_chip(irq, &asic3_gpio_irq_chip);
+			irq_set_chip(irq, &asic3_gpio_irq_chip);
 		else
-			set_irq_chip(irq, &asic3_irq_chip);
+			irq_set_chip(irq, &asic3_irq_chip);
 
-		set_irq_chip_data(irq, asic);
-		set_irq_handler(irq, handle_level_irq);
+		irq_set_chip_data(irq, asic);
+		irq_set_handler(irq, handle_level_irq);
 		set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
 	}
 
 	asic3_write_register(asic, ASIC3_OFFSET(INTR, INT_MASK),
 			     ASIC3_INTMASK_GINTMASK);
 
-	set_irq_chained_handler(asic->irq_nr, asic3_irq_demux);
-	set_irq_type(asic->irq_nr, IRQ_TYPE_EDGE_RISING);
-	set_irq_data(asic->irq_nr, asic);
+	irq_set_chained_handler(asic->irq_nr, asic3_irq_demux);
+	irq_set_irq_type(asic->irq_nr, IRQ_TYPE_EDGE_RISING);
+	irq_set_handler_data(asic->irq_nr, asic);
 
 	return 0;
 }
@@ -421,11 +416,10 @@ static void asic3_irq_remove(struct platform_device *pdev)
 
 	for (irq = irq_base; irq < irq_base + ASIC3_NR_IRQS; irq++) {
 		set_irq_flags(irq, 0);
-		set_irq_handler(irq, NULL);
-		set_irq_chip(irq, NULL);
-		set_irq_chip_data(irq, NULL);
+		irq_set_chip_and_handler(irq, NULL, NULL);
+		irq_set_chip_data(irq, NULL);
 	}
-	set_irq_chained_handler(asic->irq_nr, NULL);
+	irq_set_chained_handler(asic->irq_nr, NULL);
 }
 
 /* GPIOs */
diff --git a/drivers/mfd/cs5535-mfd.c b/drivers/mfd/cs5535-mfd.c
index 886a06871065..155fa0407882 100644
--- a/drivers/mfd/cs5535-mfd.c
+++ b/drivers/mfd/cs5535-mfd.c
@@ -27,6 +27,7 @@
 #include <linux/mfd/core.h>
 #include <linux/module.h>
 #include <linux/pci.h>
+#include <asm/olpc.h>
 
 #define DRV_NAME "cs5535-mfd"
 
@@ -111,6 +112,20 @@ static __devinitdata struct mfd_cell cs5535_mfd_cells[] = {
 	},
 };
 
+#ifdef CONFIG_OLPC
+static void __devinit cs5535_clone_olpc_cells(void)
+{
+	const char *acpi_clones[] = { "olpc-xo1-pm-acpi", "olpc-xo1-sci-acpi" };
+
+	if (!machine_is_olpc())
+		return;
+
+	mfd_clone_cell("cs5535-acpi", acpi_clones, ARRAY_SIZE(acpi_clones));
+}
+#else
+static void cs5535_clone_olpc_cells(void) { }
+#endif
+
 static int __devinit cs5535_mfd_probe(struct pci_dev *pdev,
 		const struct pci_device_id *id)
 {
@@ -139,6 +154,7 @@ static int __devinit cs5535_mfd_probe(struct pci_dev *pdev,
 		dev_err(&pdev->dev, "MFD add devices failed: %d\n", err);
 		goto err_disable;
 	}
+	cs5535_clone_olpc_cells();
 
 	dev_info(&pdev->dev, "%zu devices registered.\n",
 			ARRAY_SIZE(cs5535_mfd_cells));
diff --git a/drivers/mfd/ezx-pcap.c b/drivers/mfd/ezx-pcap.c
index 9e2d8dd5f9e5..43a76c41cfcc 100644
--- a/drivers/mfd/ezx-pcap.c
+++ b/drivers/mfd/ezx-pcap.c
@@ -162,6 +162,7 @@ static void pcap_unmask_irq(struct irq_data *d)
 
 static struct irq_chip pcap_irq_chip = {
 	.name		= "pcap",
+	.irq_disable	= pcap_mask_irq,
 	.irq_mask	= pcap_mask_irq,
 	.irq_unmask	= pcap_unmask_irq,
 };
@@ -184,7 +185,7 @@ static void pcap_isr_work(struct work_struct *work)
 		ezx_pcap_read(pcap, PCAP_REG_MSR, &msr);
 		ezx_pcap_read(pcap, PCAP_REG_ISR, &isr);
 
-		/* We cant service/ack irqs that are assigned to port 2 */
+		/* We can't service/ack irqs that are assigned to port 2 */
 		if (!(pdata->config & PCAP_SECOND_PORT)) {
 			ezx_pcap_read(pcap, PCAP_REG_INT_SEL, &int_sel);
 			isr &= ~int_sel;
@@ -196,17 +197,8 @@ static void pcap_isr_work(struct work_struct *work)
 		local_irq_disable();
 		service = isr & ~msr;
 		for (irq = pcap->irq_base; service; service >>= 1, irq++) {
-			if (service & 1) {
-				struct irq_desc *desc = irq_to_desc(irq);
-
-				if (WARN(!desc, "Invalid PCAP IRQ %d\n", irq))
-					break;
-
-				if (desc->status & IRQ_DISABLED)
-					note_interrupt(irq, desc, IRQ_NONE);
-				else
-					desc->handle_irq(irq, desc);
-			}
+			if (service & 1)
+				generic_handle_irq(irq);
 		}
 		local_irq_enable();
 		ezx_pcap_write(pcap, PCAP_REG_MSR, pcap->msr);
@@ -215,7 +207,7 @@ static void pcap_isr_work(struct work_struct *work)
 
 static void pcap_irq_handler(unsigned int irq, struct irq_desc *desc)
 {
-	struct pcap_chip *pcap = get_irq_data(irq);
+	struct pcap_chip *pcap = irq_get_handler_data(irq);
 
 	desc->irq_data.chip->irq_ack(&desc->irq_data);
 	queue_work(pcap->workqueue, &pcap->isr_work);
@@ -419,7 +411,7 @@ static int __devexit ezx_pcap_remove(struct spi_device *spi)
 
 	/* cleanup irqchip */
 	for (i = pcap->irq_base; i < (pcap->irq_base + PCAP_NIRQS); i++)
-		set_irq_chip_and_handler(i, NULL, NULL);
+		irq_set_chip_and_handler(i, NULL, NULL);
 
 	destroy_workqueue(pcap->workqueue);
 
@@ -465,7 +457,7 @@ static int __devinit ezx_pcap_probe(struct spi_device *spi)
 	pcap->workqueue = create_singlethread_workqueue("pcapd");
 	if (!pcap->workqueue) {
 		ret = -ENOMEM;
-		dev_err(&spi->dev, "cant create pcap thread\n");
+		dev_err(&spi->dev, "can't create pcap thread\n");
 		goto free_pcap;
 	}
 
@@ -476,12 +468,12 @@ static int __devinit ezx_pcap_probe(struct spi_device *spi)
 
 	/* setup irq chip */
 	for (i = pcap->irq_base; i < (pcap->irq_base + PCAP_NIRQS); i++) {
-		set_irq_chip_and_handler(i, &pcap_irq_chip, handle_simple_irq);
-		set_irq_chip_data(i, pcap);
+		irq_set_chip_and_handler(i, &pcap_irq_chip, handle_simple_irq);
+		irq_set_chip_data(i, pcap);
 #ifdef CONFIG_ARM
 		set_irq_flags(i, IRQF_VALID);
 #else
-		set_irq_noprobe(i);
+		irq_set_noprobe(i);
 #endif
 	}
 
@@ -490,10 +482,10 @@ static int __devinit ezx_pcap_probe(struct spi_device *spi)
 	ezx_pcap_write(pcap, PCAP_REG_ISR, PCAP_CLEAR_INTERRUPT_REGISTER);
 	pcap->msr = PCAP_MASK_ALL_INTERRUPT;
 
-	set_irq_type(spi->irq, IRQ_TYPE_EDGE_RISING);
-	set_irq_data(spi->irq, pcap);
-	set_irq_chained_handler(spi->irq, pcap_irq_handler);
-	set_irq_wake(spi->irq, 1);
+	irq_set_irq_type(spi->irq, IRQ_TYPE_EDGE_RISING);
+	irq_set_handler_data(spi->irq, pcap);
+	irq_set_chained_handler(spi->irq, pcap_irq_handler);
+	irq_set_irq_wake(spi->irq, 1);
 
 	/* ADC */
 	adc_irq = pcap_to_irq(pcap, (pdata->config & PCAP_SECOND_PORT) ?
@@ -522,7 +514,7 @@ remove_subdevs:
 	free_irq(adc_irq, pcap);
 free_irqchip:
 	for (i = pcap->irq_base; i < (pcap->irq_base + PCAP_NIRQS); i++)
-		set_irq_chip_and_handler(i, NULL, NULL);
+		irq_set_chip_and_handler(i, NULL, NULL);
 /* destroy_workqueue: */
 	destroy_workqueue(pcap->workqueue);
 free_pcap:
diff --git a/drivers/mfd/htc-egpio.c b/drivers/mfd/htc-egpio.c
index d00b6d1a69e5..bbaec0ccba8f 100644
--- a/drivers/mfd/htc-egpio.c
+++ b/drivers/mfd/htc-egpio.c
@@ -100,7 +100,7 @@ static struct irq_chip egpio_muxed_chip = {
 
 static void egpio_handler(unsigned int irq, struct irq_desc *desc)
 {
-	struct egpio_info *ei = get_irq_data(irq);
+	struct egpio_info *ei = irq_desc_get_handler_data(desc);
 	int irqpin;
 
 	/* Read current pins. */
@@ -113,9 +113,7 @@ static void egpio_handler(unsigned int irq, struct irq_desc *desc)
 	for_each_set_bit(irqpin, &readval, ei->nirqs) {
 		/* Run irq handler */
 		pr_debug("got IRQ %d\n", irqpin);
-		irq = ei->irq_start + irqpin;
-		desc = irq_to_desc(irq);
-		desc->handle_irq(irq, desc);
+		generic_handle_irq(ei->irq_start + irqpin);
 	}
 }
 
@@ -346,14 +344,14 @@ static int __init egpio_probe(struct platform_device *pdev)
 			ei->ack_write = 0;
 		irq_end = ei->irq_start + ei->nirqs;
 		for (irq = ei->irq_start; irq < irq_end; irq++) {
-			set_irq_chip(irq, &egpio_muxed_chip);
-			set_irq_chip_data(irq, ei);
-			set_irq_handler(irq, handle_simple_irq);
+			irq_set_chip_and_handler(irq, &egpio_muxed_chip,
+						 handle_simple_irq);
+			irq_set_chip_data(irq, ei);
 			set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
 		}
-		set_irq_type(ei->chained_irq, IRQ_TYPE_EDGE_RISING);
-		set_irq_data(ei->chained_irq, ei);
-		set_irq_chained_handler(ei->chained_irq, egpio_handler);
+		irq_set_irq_type(ei->chained_irq, IRQ_TYPE_EDGE_RISING);
+		irq_set_handler_data(ei->chained_irq, ei);
+		irq_set_chained_handler(ei->chained_irq, egpio_handler);
 		ack_irqs(ei);
 
 		device_init_wakeup(&pdev->dev, 1);
@@ -375,11 +373,10 @@ static int __exit egpio_remove(struct platform_device *pdev)
 	if (ei->chained_irq) {
 		irq_end = ei->irq_start + ei->nirqs;
 		for (irq = ei->irq_start; irq < irq_end; irq++) {
-			set_irq_chip(irq, NULL);
-			set_irq_handler(irq, NULL);
+			irq_set_chip_and_handler(irq, NULL, NULL);
 			set_irq_flags(irq, 0);
 		}
-		set_irq_chained_handler(ei->chained_irq, NULL);
+		irq_set_chained_handler(ei->chained_irq, NULL);
 		device_init_wakeup(&pdev->dev, 0);
 	}
 	iounmap(ei->base_addr);
diff --git a/drivers/mfd/htc-i2cpld.c b/drivers/mfd/htc-i2cpld.c
index 296ad1562f69..d55065cc324c 100644
--- a/drivers/mfd/htc-i2cpld.c
+++ b/drivers/mfd/htc-i2cpld.c
@@ -58,6 +58,7 @@ struct htcpld_chip {
 	uint                    irq_start;
 	int                     nirqs;
 
+	unsigned int		flow_type;
 	/*
 	 * Work structure to allow for setting values outside of any
 	 * possible interrupt context
@@ -97,12 +98,7 @@ static void htcpld_unmask(struct irq_data *data)
 
 static int htcpld_set_type(struct irq_data *data, unsigned int flags)
 {
-	struct irq_desc *d = irq_to_desc(data->irq);
-
-	if (!d) {
-		pr_err("HTCPLD invalid IRQ: %d\n", data->irq);
-		return -EINVAL;
-	}
+	struct htcpld_chip *chip = irq_data_get_irq_chip_data(data);
 
 	if (flags & ~IRQ_TYPE_SENSE_MASK)
 		return -EINVAL;
@@ -111,9 +107,7 @@ static int htcpld_set_type(struct irq_data *data, unsigned int flags)
 	if (flags & (IRQ_TYPE_LEVEL_LOW|IRQ_TYPE_LEVEL_HIGH))
 		return -EINVAL;
 
-	d->status &= ~IRQ_TYPE_SENSE_MASK;
-	d->status |= flags;
-
+	chip->flow_type = flags;
 	return 0;
 }
 
@@ -135,7 +129,6 @@ static irqreturn_t htcpld_handler(int irq, void *dev)
 	unsigned int i;
 	unsigned long flags;
 	int irqpin;
-	struct irq_desc *desc;
 
 	if (!htcpld) {
 		pr_debug("htcpld is null in ISR\n");
@@ -195,23 +188,19 @@ static irqreturn_t htcpld_handler(int irq, void *dev)
 		 * associated interrupts.
 		 */
 		for (irqpin = 0; irqpin < chip->nirqs; irqpin++) {
-			unsigned oldb, newb;
-			int flags;
+			unsigned oldb, newb, type = chip->flow_type;
 
 			irq = chip->irq_start + irqpin;
-			desc = irq_to_desc(irq);
-			flags = desc->status;
 
 			/* Run the IRQ handler, but only if the bit value
 			 * changed, and the proper flags are set */
 			oldb = (old_val >> irqpin) & 1;
 			newb = (uval >> irqpin) & 1;
 
-			if ((!oldb && newb && (flags & IRQ_TYPE_EDGE_RISING)) ||
-			    (oldb && !newb &&
-			     (flags & IRQ_TYPE_EDGE_FALLING))) {
+			if ((!oldb && newb && (type & IRQ_TYPE_EDGE_RISING)) ||
+			    (oldb && !newb && (type & IRQ_TYPE_EDGE_FALLING))) {
 				pr_debug("fire IRQ %d\n", irqpin);
-				desc->handle_irq(irq, desc);
+				generic_handle_irq(irq);
 			}
 		}
 	}
@@ -359,13 +348,13 @@ static int __devinit htcpld_setup_chip_irq(
 	/* Setup irq handlers */
 	irq_end = chip->irq_start + chip->nirqs;
 	for (irq = chip->irq_start; irq < irq_end; irq++) {
-		set_irq_chip(irq, &htcpld_muxed_chip);
-		set_irq_chip_data(irq, chip);
-		set_irq_handler(irq, handle_simple_irq);
+		irq_set_chip_and_handler(irq, &htcpld_muxed_chip,
+					 handle_simple_irq);
+		irq_set_chip_data(irq, chip);
 #ifdef CONFIG_ARM
 		set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
 #else
-		set_irq_probe(irq);
+		irq_set_probe(irq);
 #endif
 	}
 
diff --git a/drivers/mfd/jz4740-adc.c b/drivers/mfd/jz4740-adc.c
index aa518b9beaf5..a0bd0cf05af3 100644
--- a/drivers/mfd/jz4740-adc.c
+++ b/drivers/mfd/jz4740-adc.c
@@ -112,7 +112,7 @@ static struct irq_chip jz4740_adc_irq_chip = {
 
 static void jz4740_adc_irq_demux(unsigned int irq, struct irq_desc *desc)
 {
-	struct jz4740_adc *adc = get_irq_desc_data(desc);
+	struct jz4740_adc *adc = irq_desc_get_handler_data(desc);
 	uint8_t status;
 	unsigned int i;
 
@@ -310,13 +310,13 @@ static int __devinit jz4740_adc_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, adc);
 
 	for (irq = adc->irq_base; irq < adc->irq_base + 5; ++irq) {
-		set_irq_chip_data(irq, adc);
-		set_irq_chip_and_handler(irq, &jz4740_adc_irq_chip,
-		    handle_level_irq);
+		irq_set_chip_data(irq, adc);
+		irq_set_chip_and_handler(irq, &jz4740_adc_irq_chip,
+					 handle_level_irq);
 	}
 
-	set_irq_data(adc->irq, adc);
-	set_irq_chained_handler(adc->irq, jz4740_adc_irq_demux);
+	irq_set_handler_data(adc->irq, adc);
+	irq_set_chained_handler(adc->irq, jz4740_adc_irq_demux);
 
 	writeb(0x00, adc->base + JZ_REG_ADC_ENABLE);
 	writeb(0xff, adc->base + JZ_REG_ADC_CTRL);
@@ -347,8 +347,8 @@ static int __devexit jz4740_adc_remove(struct platform_device *pdev)
 
 	mfd_remove_devices(&pdev->dev);
 
-	set_irq_data(adc->irq, NULL);
-	set_irq_chained_handler(adc->irq, NULL);
+	irq_set_handler_data(adc->irq, NULL);
+	irq_set_chained_handler(adc->irq, NULL);
 
 	iounmap(adc->base);
 	release_mem_region(adc->mem->start, resource_size(adc->mem));
diff --git a/drivers/mfd/max8925-core.c b/drivers/mfd/max8925-core.c
index 0e998dc4e7d8..58cc5fdde016 100644
--- a/drivers/mfd/max8925-core.c
+++ b/drivers/mfd/max8925-core.c
@@ -517,7 +517,6 @@ static int max8925_irq_init(struct max8925_chip *chip, int irq,
 			    struct max8925_platform_data *pdata)
 {
 	unsigned long flags = IRQF_TRIGGER_FALLING | IRQF_ONESHOT;
-	struct irq_desc *desc;
 	int i, ret;
 	int __irq;
 
@@ -544,19 +543,18 @@ static int max8925_irq_init(struct max8925_chip *chip, int irq,
 	mutex_init(&chip->irq_lock);
 	chip->core_irq = irq;
 	chip->irq_base = pdata->irq_base;
-	desc = irq_to_desc(chip->core_irq);
 
 	/* register with genirq */
 	for (i = 0; i < ARRAY_SIZE(max8925_irqs); i++) {
 		__irq = i + chip->irq_base;
-		set_irq_chip_data(__irq, chip);
-		set_irq_chip_and_handler(__irq, &max8925_irq_chip,
+		irq_set_chip_data(__irq, chip);
+		irq_set_chip_and_handler(__irq, &max8925_irq_chip,
 					 handle_edge_irq);
-		set_irq_nested_thread(__irq, 1);
+		irq_set_nested_thread(__irq, 1);
 #ifdef CONFIG_ARM
 		set_irq_flags(__irq, IRQF_VALID);
 #else
-		set_irq_noprobe(__irq);
+		irq_set_noprobe(__irq);
 #endif
 	}
 	if (!irq) {
diff --git a/drivers/mfd/max8997-irq.c b/drivers/mfd/max8997-irq.c
new file mode 100644
index 000000000000..638bf7e4d3b3
--- /dev/null
+++ b/drivers/mfd/max8997-irq.c
@@ -0,0 +1,377 @@
+/*
+ * max8997-irq.c - Interrupt controller support for MAX8997
+ *
+ * Copyright (C) 2011 Samsung Electronics Co.Ltd
+ * MyungJoo Ham <myungjoo.ham@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * This driver is based on max8998-irq.c
+ */
+
+#include <linux/err.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <linux/mfd/max8997.h>
+#include <linux/mfd/max8997-private.h>
+
+static const u8 max8997_mask_reg[] = {
+	[PMIC_INT1] = MAX8997_REG_INT1MSK,
+	[PMIC_INT2] = MAX8997_REG_INT2MSK,
+	[PMIC_INT3] = MAX8997_REG_INT3MSK,
+	[PMIC_INT4] = MAX8997_REG_INT4MSK,
+	[FUEL_GAUGE] = MAX8997_REG_INVALID,
+	[MUIC_INT1] = MAX8997_MUIC_REG_INTMASK1,
+	[MUIC_INT2] = MAX8997_MUIC_REG_INTMASK2,
+	[MUIC_INT3] = MAX8997_MUIC_REG_INTMASK3,
+	[GPIO_LOW] = MAX8997_REG_INVALID,
+	[GPIO_HI] = MAX8997_REG_INVALID,
+	[FLASH_STATUS] = MAX8997_REG_INVALID,
+};
+
+static struct i2c_client *get_i2c(struct max8997_dev *max8997,
+				enum max8997_irq_source src)
+{
+	switch (src) {
+	case PMIC_INT1 ... PMIC_INT4:
+		return max8997->i2c;
+	case FUEL_GAUGE:
+		return NULL;
+	case MUIC_INT1 ... MUIC_INT3:
+		return max8997->muic;
+	case GPIO_LOW ... GPIO_HI:
+		return max8997->i2c;
+	case FLASH_STATUS:
+		return max8997->i2c;
+	default:
+		return ERR_PTR(-EINVAL);
+	}
+
+	return ERR_PTR(-EINVAL);
+}
+
+struct max8997_irq_data {
+	int mask;
+	enum max8997_irq_source group;
+};
+
+#define DECLARE_IRQ(idx, _group, _mask)		\
+	[(idx)] = { .group = (_group), .mask = (_mask) }
+static const struct max8997_irq_data max8997_irqs[] = {
+	DECLARE_IRQ(MAX8997_PMICIRQ_PWRONR,	PMIC_INT1, 1 << 0),
+	DECLARE_IRQ(MAX8997_PMICIRQ_PWRONF,	PMIC_INT1, 1 << 1),
+	DECLARE_IRQ(MAX8997_PMICIRQ_PWRON1SEC,	PMIC_INT1, 1 << 3),
+	DECLARE_IRQ(MAX8997_PMICIRQ_JIGONR,	PMIC_INT1, 1 << 4),
+	DECLARE_IRQ(MAX8997_PMICIRQ_JIGONF,	PMIC_INT1, 1 << 5),
+	DECLARE_IRQ(MAX8997_PMICIRQ_LOWBAT2,	PMIC_INT1, 1 << 6),
+	DECLARE_IRQ(MAX8997_PMICIRQ_LOWBAT1,	PMIC_INT1, 1 << 7),
+
+	DECLARE_IRQ(MAX8997_PMICIRQ_JIGR,	PMIC_INT2, 1 << 0),
+	DECLARE_IRQ(MAX8997_PMICIRQ_JIGF,	PMIC_INT2, 1 << 1),
+	DECLARE_IRQ(MAX8997_PMICIRQ_MR,		PMIC_INT2, 1 << 2),
+	DECLARE_IRQ(MAX8997_PMICIRQ_DVS1OK,	PMIC_INT2, 1 << 3),
+	DECLARE_IRQ(MAX8997_PMICIRQ_DVS2OK,	PMIC_INT2, 1 << 4),
+	DECLARE_IRQ(MAX8997_PMICIRQ_DVS3OK,	PMIC_INT2, 1 << 5),
+	DECLARE_IRQ(MAX8997_PMICIRQ_DVS4OK,	PMIC_INT2, 1 << 6),
+
+	DECLARE_IRQ(MAX8997_PMICIRQ_CHGINS,	PMIC_INT3, 1 << 0),
+	DECLARE_IRQ(MAX8997_PMICIRQ_CHGRM,	PMIC_INT3, 1 << 1),
+	DECLARE_IRQ(MAX8997_PMICIRQ_DCINOVP,	PMIC_INT3, 1 << 2),
+	DECLARE_IRQ(MAX8997_PMICIRQ_TOPOFFR,	PMIC_INT3, 1 << 3),
+	DECLARE_IRQ(MAX8997_PMICIRQ_CHGRSTF,	PMIC_INT3, 1 << 5),
+	DECLARE_IRQ(MAX8997_PMICIRQ_MBCHGTMEXPD,	PMIC_INT3, 1 << 7),
+
+	DECLARE_IRQ(MAX8997_PMICIRQ_RTC60S,	PMIC_INT4, 1 << 0),
+	DECLARE_IRQ(MAX8997_PMICIRQ_RTCA1,	PMIC_INT4, 1 << 1),
+	DECLARE_IRQ(MAX8997_PMICIRQ_RTCA2,	PMIC_INT4, 1 << 2),
+	DECLARE_IRQ(MAX8997_PMICIRQ_SMPL_INT,	PMIC_INT4, 1 << 3),
+	DECLARE_IRQ(MAX8997_PMICIRQ_RTC1S,	PMIC_INT4, 1 << 4),
+	DECLARE_IRQ(MAX8997_PMICIRQ_WTSR,	PMIC_INT4, 1 << 5),
+
+	DECLARE_IRQ(MAX8997_MUICIRQ_ADCError,	MUIC_INT1, 1 << 2),
+	DECLARE_IRQ(MAX8997_MUICIRQ_ADCLow,	MUIC_INT1, 1 << 1),
+	DECLARE_IRQ(MAX8997_MUICIRQ_ADC,	MUIC_INT1, 1 << 0),
+
+	DECLARE_IRQ(MAX8997_MUICIRQ_VBVolt,	MUIC_INT2, 1 << 4),
+	DECLARE_IRQ(MAX8997_MUICIRQ_DBChg,	MUIC_INT2, 1 << 3),
+	DECLARE_IRQ(MAX8997_MUICIRQ_DCDTmr,	MUIC_INT2, 1 << 2),
+	DECLARE_IRQ(MAX8997_MUICIRQ_ChgDetRun,	MUIC_INT2, 1 << 1),
+	DECLARE_IRQ(MAX8997_MUICIRQ_ChgTyp,	MUIC_INT2, 1 << 0),
+
+	DECLARE_IRQ(MAX8997_MUICIRQ_OVP,	MUIC_INT3, 1 << 2),
+};
+
+static void max8997_irq_lock(struct irq_data *data)
+{
+	struct max8997_dev *max8997 = irq_get_chip_data(data->irq);
+
+	mutex_lock(&max8997->irqlock);
+}
+
+static void max8997_irq_sync_unlock(struct irq_data *data)
+{
+	struct max8997_dev *max8997 = irq_get_chip_data(data->irq);
+	int i;
+
+	for (i = 0; i < MAX8997_IRQ_GROUP_NR; i++) {
+		u8 mask_reg = max8997_mask_reg[i];
+		struct i2c_client *i2c = get_i2c(max8997, i);
+
+		if (mask_reg == MAX8997_REG_INVALID ||
+				IS_ERR_OR_NULL(i2c))
+			continue;
+		max8997->irq_masks_cache[i] = max8997->irq_masks_cur[i];
+
+		max8997_write_reg(i2c, max8997_mask_reg[i],
+				max8997->irq_masks_cur[i]);
+	}
+
+	mutex_unlock(&max8997->irqlock);
+}
+
+static const inline struct max8997_irq_data *
+irq_to_max8997_irq(struct max8997_dev *max8997, int irq)
+{
+	return &max8997_irqs[irq - max8997->irq_base];
+}
+
+static void max8997_irq_mask(struct irq_data *data)
+{
+	struct max8997_dev *max8997 = irq_get_chip_data(data->irq);
+	const struct max8997_irq_data *irq_data = irq_to_max8997_irq(max8997,
+								data->irq);
+
+	max8997->irq_masks_cur[irq_data->group] |= irq_data->mask;
+}
+
+static void max8997_irq_unmask(struct irq_data *data)
+{
+	struct max8997_dev *max8997 = irq_get_chip_data(data->irq);
+	const struct max8997_irq_data *irq_data = irq_to_max8997_irq(max8997,
+								data->irq);
+
+	max8997->irq_masks_cur[irq_data->group] &= ~irq_data->mask;
+}
+
+static struct irq_chip max8997_irq_chip = {
+	.name			= "max8997",
+	.irq_bus_lock		= max8997_irq_lock,
+	.irq_bus_sync_unlock	= max8997_irq_sync_unlock,
+	.irq_mask		= max8997_irq_mask,
+	.irq_unmask		= max8997_irq_unmask,
+};
+
+#define MAX8997_IRQSRC_PMIC		(1 << 1)
+#define MAX8997_IRQSRC_FUELGAUGE	(1 << 2)
+#define MAX8997_IRQSRC_MUIC		(1 << 3)
+#define MAX8997_IRQSRC_GPIO		(1 << 4)
+#define MAX8997_IRQSRC_FLASH		(1 << 5)
+static irqreturn_t max8997_irq_thread(int irq, void *data)
+{
+	struct max8997_dev *max8997 = data;
+	u8 irq_reg[MAX8997_IRQ_GROUP_NR] = {};
+	u8 irq_src;
+	int ret;
+	int i;
+
+	ret = max8997_read_reg(max8997->i2c, MAX8997_REG_INTSRC, &irq_src);
+	if (ret < 0) {
+		dev_err(max8997->dev, "Failed to read interrupt source: %d\n",
+				ret);
+		return IRQ_NONE;
+	}
+
+	if (irq_src & MAX8997_IRQSRC_PMIC) {
+		/* PMIC INT1 ~ INT4 */
+		max8997_bulk_read(max8997->i2c, MAX8997_REG_INT1, 4,
+				&irq_reg[PMIC_INT1]);
+	}
+	if (irq_src & MAX8997_IRQSRC_FUELGAUGE) {
+		/*
+		 * TODO: FUEL GAUGE
+		 *
+		 * This is to be supported by Max17042 driver. When
+		 * an interrupt incurs here, it should be relayed to a
+		 * Max17042 device that is connected (probably by
+		 * platform-data). However, we do not have interrupt
+		 * handling in Max17042 driver currently. The Max17042 IRQ
+		 * driver should be ready to be used as a stand-alone device and
+		 * a Max8997-dependent device. Because it is not ready in
+		 * Max17042-side and it is not too critical in operating
+		 * Max8997, we do not implement this in initial releases.
+		 */
+		irq_reg[FUEL_GAUGE] = 0;
+	}
+	if (irq_src & MAX8997_IRQSRC_MUIC) {
+		/* MUIC INT1 ~ INT3 */
+		max8997_bulk_read(max8997->muic, MAX8997_MUIC_REG_INT1, 3,
+				&irq_reg[MUIC_INT1]);
+	}
+	if (irq_src & MAX8997_IRQSRC_GPIO) {
+		/* GPIO Interrupt */
+		u8 gpio_info[MAX8997_NUM_GPIO];
+
+		irq_reg[GPIO_LOW] = 0;
+		irq_reg[GPIO_HI] = 0;
+
+		max8997_bulk_read(max8997->i2c, MAX8997_REG_GPIOCNTL1,
+				MAX8997_NUM_GPIO, gpio_info);
+		for (i = 0; i < MAX8997_NUM_GPIO; i++) {
+			bool interrupt = false;
+
+			switch (gpio_info[i] & MAX8997_GPIO_INT_MASK) {
+			case MAX8997_GPIO_INT_BOTH:
+				if (max8997->gpio_status[i] != gpio_info[i])
+					interrupt = true;
+				break;
+			case MAX8997_GPIO_INT_RISE:
+				if ((max8997->gpio_status[i] != gpio_info[i]) &&
+				    (gpio_info[i] & MAX8997_GPIO_DATA_MASK))
+					interrupt = true;
+				break;
+			case MAX8997_GPIO_INT_FALL:
+				if ((max8997->gpio_status[i] != gpio_info[i]) &&
+				    !(gpio_info[i] & MAX8997_GPIO_DATA_MASK))
+					interrupt = true;
+				break;
+			default:
+				break;
+			}
+
+			if (interrupt) {
+				if (i < 8)
+					irq_reg[GPIO_LOW] |= (1 << i);
+				else
+					irq_reg[GPIO_HI] |= (1 << (i - 8));
+			}
+
+		}
+	}
+	if (irq_src & MAX8997_IRQSRC_FLASH) {
+		/* Flash Status Interrupt */
+		ret = max8997_read_reg(max8997->i2c, MAX8997_REG_FLASHSTATUS,
+				&irq_reg[FLASH_STATUS]);
+	}
+
+	/* Apply masking */
+	for (i = 0; i < MAX8997_IRQ_GROUP_NR; i++)
+		irq_reg[i] &= ~max8997->irq_masks_cur[i];
+
+	/* Report */
+	for (i = 0; i < MAX8997_IRQ_NR; i++) {
+		if (irq_reg[max8997_irqs[i].group] & max8997_irqs[i].mask)
+			handle_nested_irq(max8997->irq_base + i);
+	}
+
+	return IRQ_HANDLED;
+}
+
+int max8997_irq_resume(struct max8997_dev *max8997)
+{
+	if (max8997->irq && max8997->irq_base)
+		max8997_irq_thread(max8997->irq_base, max8997);
+	return 0;
+}
+
+int max8997_irq_init(struct max8997_dev *max8997)
+{
+	int i;
+	int cur_irq;
+	int ret;
+	u8 val;
+
+	if (!max8997->irq) {
+		dev_warn(max8997->dev, "No interrupt specified.\n");
+		max8997->irq_base = 0;
+		return 0;
+	}
+
+	if (!max8997->irq_base) {
+		dev_err(max8997->dev, "No interrupt base specified.\n");
+		return 0;
+	}
+
+	mutex_init(&max8997->irqlock);
+
+	/* Mask individual interrupt sources */
+	for (i = 0; i < MAX8997_IRQ_GROUP_NR; i++) {
+		struct i2c_client *i2c;
+
+		max8997->irq_masks_cur[i] = 0xff;
+		max8997->irq_masks_cache[i] = 0xff;
+		i2c = get_i2c(max8997, i);
+
+		if (IS_ERR_OR_NULL(i2c))
+			continue;
+		if (max8997_mask_reg[i] == MAX8997_REG_INVALID)
+			continue;
+
+		max8997_write_reg(i2c, max8997_mask_reg[i], 0xff);
+	}
+
+	for (i = 0; i < MAX8997_NUM_GPIO; i++) {
+		max8997->gpio_status[i] = (max8997_read_reg(max8997->i2c,
+						MAX8997_REG_GPIOCNTL1 + i,
+						&val)
+					& MAX8997_GPIO_DATA_MASK) ?
+					true : false;
+	}
+
+	/* Register with genirq */
+	for (i = 0; i < MAX8997_IRQ_NR; i++) {
+		cur_irq = i + max8997->irq_base;
+		irq_set_chip_data(cur_irq, max8997);
+		irq_set_chip_and_handler(cur_irq, &max8997_irq_chip,
+				handle_edge_irq);
+		irq_set_nested_thread(cur_irq, 1);
+#ifdef CONFIG_ARM
+		set_irq_flags(cur_irq, IRQF_VALID);
+#else
+		irq_set_noprobe(cur_irq);
+#endif
+	}
+
+	ret = request_threaded_irq(max8997->irq, NULL, max8997_irq_thread,
+			IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
+			"max8997-irq", max8997);
+
+	if (ret) {
+		dev_err(max8997->dev, "Failed to request IRQ %d: %d\n",
+				max8997->irq, ret);
+		return ret;
+	}
+
+	if (!max8997->ono)
+		return 0;
+
+	ret = request_threaded_irq(max8997->ono, NULL, max8997_irq_thread,
+			IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING |
+			IRQF_ONESHOT, "max8997-ono", max8997);
+
+	if (ret)
+		dev_err(max8997->dev, "Failed to request ono-IRQ %d: %d\n",
+				max8997->ono, ret);
+
+	return 0;
+}
+
+void max8997_irq_exit(struct max8997_dev *max8997)
+{
+	if (max8997->ono)
+		free_irq(max8997->ono, max8997);
+
+	if (max8997->irq)
+		free_irq(max8997->irq, max8997);
+}
diff --git a/drivers/mfd/max8998-irq.c b/drivers/mfd/max8998-irq.c
index 3903e1fbb334..5919710dc9ed 100644
--- a/drivers/mfd/max8998-irq.c
+++ b/drivers/mfd/max8998-irq.c
@@ -224,14 +224,14 @@ int max8998_irq_init(struct max8998_dev *max8998)
 	/* register with genirq */
 	for (i = 0; i < MAX8998_IRQ_NR; i++) {
 		cur_irq = i + max8998->irq_base;
-		set_irq_chip_data(cur_irq, max8998);
-		set_irq_chip_and_handler(cur_irq, &max8998_irq_chip,
+		irq_set_chip_data(cur_irq, max8998);
+		irq_set_chip_and_handler(cur_irq, &max8998_irq_chip,
 					 handle_edge_irq);
-		set_irq_nested_thread(cur_irq, 1);
+		irq_set_nested_thread(cur_irq, 1);
 #ifdef CONFIG_ARM
 		set_irq_flags(cur_irq, IRQF_VALID);
 #else
-		set_irq_noprobe(cur_irq);
+		irq_set_noprobe(cur_irq);
 #endif
 	}
 
diff --git a/drivers/mfd/max8998.c b/drivers/mfd/max8998.c
index c00214257da2..9ec7570f5b81 100644
--- a/drivers/mfd/max8998.c
+++ b/drivers/mfd/max8998.c
@@ -209,7 +209,7 @@ static int max8998_suspend(struct device *dev)
 	struct max8998_dev *max8998 = i2c_get_clientdata(i2c);
 
 	if (max8998->wakeup)
-		set_irq_wake(max8998->irq, 1);
+		irq_set_irq_wake(max8998->irq, 1);
 	return 0;
 }
 
@@ -219,7 +219,7 @@ static int max8998_resume(struct device *dev)
 	struct max8998_dev *max8998 = i2c_get_clientdata(i2c);
 
 	if (max8998->wakeup)
-		set_irq_wake(max8998->irq, 0);
+		irq_set_irq_wake(max8998->irq, 0);
 	/*
 	 * In LP3974, if IRQ registers are not "read & clear"
 	 * when it's set during sleep, the interrupt becomes
diff --git a/drivers/mfd/mfd-core.c b/drivers/mfd/mfd-core.c
index 79eda0264fb2..d01574d98870 100644
--- a/drivers/mfd/mfd-core.c
+++ b/drivers/mfd/mfd-core.c
@@ -184,16 +184,12 @@ void mfd_remove_devices(struct device *parent)
 }
 EXPORT_SYMBOL(mfd_remove_devices);
 
-static int add_shared_platform_device(const char *cell, const char *name)
+int mfd_clone_cell(const char *cell, const char **clones, size_t n_clones)
 {
 	struct mfd_cell cell_entry;
 	struct device *dev;
 	struct platform_device *pdev;
-	int err;
-
-	/* check if we've already registered a device (don't fail if we have) */
-	if (bus_find_device_by_name(&platform_bus_type, NULL, name))
-		return 0;
+	int i;
 
 	/* fetch the parent cell's device (should already be registered!) */
 	dev = bus_find_device_by_name(&platform_bus_type, NULL, cell);
@@ -206,44 +202,17 @@ static int add_shared_platform_device(const char *cell, const char *name)
 
 	WARN_ON(!cell_entry.enable);
 
-	cell_entry.name = name;
-	err = mfd_add_device(pdev->dev.parent, -1, &cell_entry, NULL, 0);
-	if (err)
-		dev_err(dev, "MFD add devices failed: %d\n", err);
-	return err;
-}
-
-int mfd_shared_platform_driver_register(struct platform_driver *drv,
-		const char *cellname)
-{
-	int err;
-
-	err = add_shared_platform_device(cellname, drv->driver.name);
-	if (err)
-		printk(KERN_ERR "failed to add platform device %s\n",
-				drv->driver.name);
-
-	err = platform_driver_register(drv);
-	if (err)
-		printk(KERN_ERR "failed to add platform driver %s\n",
-				drv->driver.name);
-
-	return err;
-}
-EXPORT_SYMBOL(mfd_shared_platform_driver_register);
-
-void mfd_shared_platform_driver_unregister(struct platform_driver *drv)
-{
-	struct device *dev;
-
-	dev = bus_find_device_by_name(&platform_bus_type, NULL,
-			drv->driver.name);
-	if (dev)
-		platform_device_unregister(to_platform_device(dev));
+	for (i = 0; i < n_clones; i++) {
+		cell_entry.name = clones[i];
+		/* don't give up if a single call fails; just report error */
+		if (mfd_add_device(pdev->dev.parent, -1, &cell_entry, NULL, 0))
+			dev_err(dev, "failed to create platform device '%s'\n",
+					clones[i]);
+	}
 
-	platform_driver_unregister(drv);
+	return 0;
 }
-EXPORT_SYMBOL(mfd_shared_platform_driver_unregister);
+EXPORT_SYMBOL(mfd_clone_cell);
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Ian Molton, Dmitry Baryshkov");
diff --git a/drivers/mfd/omap-usb-host.c b/drivers/mfd/omap-usb-host.c
index cb01209754e0..53450f433f10 100644
--- a/drivers/mfd/omap-usb-host.c
+++ b/drivers/mfd/omap-usb-host.c
@@ -332,7 +332,7 @@ static int __devinit usbhs_omap_probe(struct platform_device *pdev)
 	int				i;
 
 	if (!pdata) {
-		dev_err(dev, "Missing platfrom data\n");
+		dev_err(dev, "Missing platform data\n");
 		ret = -ENOMEM;
 		goto end_probe;
 	}
diff --git a/drivers/mfd/pcf50633-core.c b/drivers/mfd/pcf50633-core.c
index c1306ed43e3c..57868416c760 100644
--- a/drivers/mfd/pcf50633-core.c
+++ b/drivers/mfd/pcf50633-core.c
@@ -51,7 +51,7 @@ static int __pcf50633_write(struct pcf50633 *pcf, u8 reg, int num, u8 *data)
 
 }
 
-/* Read a block of upto 32 regs  */
+/* Read a block of up to 32 regs  */
 int pcf50633_read_block(struct pcf50633 *pcf, u8 reg,
 					int nr_regs, u8 *data)
 {
@@ -65,7 +65,7 @@ int pcf50633_read_block(struct pcf50633 *pcf, u8 reg,
 }
 EXPORT_SYMBOL_GPL(pcf50633_read_block);
 
-/* Write a block of upto 32 regs  */
+/* Write a block of up to 32 regs  */
 int pcf50633_write_block(struct pcf50633 *pcf , u8 reg,
 					int nr_regs, u8 *data)
 {
@@ -356,7 +356,7 @@ static int __devexit pcf50633_remove(struct i2c_client *client)
 	return 0;
 }
 
-static struct i2c_device_id pcf50633_id_table[] = {
+static const struct i2c_device_id pcf50633_id_table[] = {
 	{"pcf50633", 0x73},
 	{/* end of list */}
 };
diff --git a/drivers/mfd/rdc321x-southbridge.c b/drivers/mfd/rdc321x-southbridge.c
index 193c940225b5..10dbe6374a89 100644
--- a/drivers/mfd/rdc321x-southbridge.c
+++ b/drivers/mfd/rdc321x-southbridge.c
@@ -97,6 +97,7 @@ static DEFINE_PCI_DEVICE_TABLE(rdc321x_sb_table) = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_RDC, PCI_DEVICE_ID_RDC_R6030) },
 	{}
 };
+MODULE_DEVICE_TABLE(pci, rdc321x_sb_table);
 
 static struct pci_driver rdc321x_sb_driver = {
 	.name		= "RDC321x Southbridge",
diff --git a/drivers/mfd/stmpe.c b/drivers/mfd/stmpe.c
index 3e5732b58c49..7ab7746631d4 100644
--- a/drivers/mfd/stmpe.c
+++ b/drivers/mfd/stmpe.c
@@ -762,14 +762,14 @@ static int __devinit stmpe_irq_init(struct stmpe *stmpe)
 	int irq;
 
 	for (irq = base; irq < base + num_irqs; irq++) {
-		set_irq_chip_data(irq, stmpe);
-		set_irq_chip_and_handler(irq, &stmpe_irq_chip,
+		irq_set_chip_data(irq, stmpe);
+		irq_set_chip_and_handler(irq, &stmpe_irq_chip,
 					 handle_edge_irq);
-		set_irq_nested_thread(irq, 1);
+		irq_set_nested_thread(irq, 1);
 #ifdef CONFIG_ARM
 		set_irq_flags(irq, IRQF_VALID);
 #else
-		set_irq_noprobe(irq);
+		irq_set_noprobe(irq);
 #endif
 	}
 
@@ -786,8 +786,8 @@ static void stmpe_irq_remove(struct stmpe *stmpe)
 #ifdef CONFIG_ARM
 		set_irq_flags(irq, 0);
 #endif
-		set_irq_chip_and_handler(irq, NULL, NULL);
-		set_irq_chip_data(irq, NULL);
+		irq_set_chip_and_handler(irq, NULL, NULL);
+		irq_set_chip_data(irq, NULL);
 	}
 }
 
diff --git a/drivers/mfd/t7l66xb.c b/drivers/mfd/t7l66xb.c
index af57fc706a4c..42830e692964 100644
--- a/drivers/mfd/t7l66xb.c
+++ b/drivers/mfd/t7l66xb.c
@@ -186,7 +186,7 @@ static struct mfd_cell t7l66xb_cells[] = {
 /* Handle the T7L66XB interrupt mux */
 static void t7l66xb_irq(unsigned int irq, struct irq_desc *desc)
 {
-	struct t7l66xb *t7l66xb = get_irq_data(irq);
+	struct t7l66xb *t7l66xb = irq_get_handler_data(irq);
 	unsigned int isr;
 	unsigned int i, irq_base;
 
@@ -243,17 +243,16 @@ static void t7l66xb_attach_irq(struct platform_device *dev)
 	irq_base = t7l66xb->irq_base;
 
 	for (irq = irq_base; irq < irq_base + T7L66XB_NR_IRQS; irq++) {
-		set_irq_chip(irq, &t7l66xb_chip);
-		set_irq_chip_data(irq, t7l66xb);
-		set_irq_handler(irq, handle_level_irq);
+		irq_set_chip_and_handler(irq, &t7l66xb_chip, handle_level_irq);
+		irq_set_chip_data(irq, t7l66xb);
 #ifdef CONFIG_ARM
 		set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
 #endif
 	}
 
-	set_irq_type(t7l66xb->irq, IRQ_TYPE_EDGE_FALLING);
-	set_irq_data(t7l66xb->irq, t7l66xb);
-	set_irq_chained_handler(t7l66xb->irq, t7l66xb_irq);
+	irq_set_irq_type(t7l66xb->irq, IRQ_TYPE_EDGE_FALLING);
+	irq_set_handler_data(t7l66xb->irq, t7l66xb);
+	irq_set_chained_handler(t7l66xb->irq, t7l66xb_irq);
 }
 
 static void t7l66xb_detach_irq(struct platform_device *dev)
@@ -263,15 +262,15 @@ static void t7l66xb_detach_irq(struct platform_device *dev)
 
 	irq_base = t7l66xb->irq_base;
 
-	set_irq_chained_handler(t7l66xb->irq, NULL);
-	set_irq_data(t7l66xb->irq, NULL);
+	irq_set_chained_handler(t7l66xb->irq, NULL);
+	irq_set_handler_data(t7l66xb->irq, NULL);
 
 	for (irq = irq_base; irq < irq_base + T7L66XB_NR_IRQS; irq++) {
 #ifdef CONFIG_ARM
 		set_irq_flags(irq, 0);
 #endif
-		set_irq_chip(irq, NULL);
-		set_irq_chip_data(irq, NULL);
+		irq_set_chip(irq, NULL);
+		irq_set_chip_data(irq, NULL);
 	}
 }
 
diff --git a/drivers/mfd/tc3589x.c b/drivers/mfd/tc3589x.c
index 729dbeed2ce0..c27e515b0722 100644
--- a/drivers/mfd/tc3589x.c
+++ b/drivers/mfd/tc3589x.c
@@ -192,14 +192,14 @@ static int tc3589x_irq_init(struct tc3589x *tc3589x)
 	int irq;
 
 	for (irq = base; irq < base + TC3589x_NR_INTERNAL_IRQS; irq++) {
-		set_irq_chip_data(irq, tc3589x);
-		set_irq_chip_and_handler(irq, &dummy_irq_chip,
+		irq_set_chip_data(irq, tc3589x);
+		irq_set_chip_and_handler(irq, &dummy_irq_chip,
 					 handle_edge_irq);
-		set_irq_nested_thread(irq, 1);
+		irq_set_nested_thread(irq, 1);
 #ifdef CONFIG_ARM
 		set_irq_flags(irq, IRQF_VALID);
 #else
-		set_irq_noprobe(irq);
+		irq_set_noprobe(irq);
 #endif
 	}
 
@@ -215,8 +215,8 @@ static void tc3589x_irq_remove(struct tc3589x *tc3589x)
 #ifdef CONFIG_ARM
 		set_irq_flags(irq, 0);
 #endif
-		set_irq_chip_and_handler(irq, NULL, NULL);
-		set_irq_chip_data(irq, NULL);
+		irq_set_chip_and_handler(irq, NULL, NULL);
+		irq_set_chip_data(irq, NULL);
 	}
 }
 
diff --git a/drivers/mfd/tc6393xb.c b/drivers/mfd/tc6393xb.c
index 3d62ded86a8f..fc53ce287601 100644
--- a/drivers/mfd/tc6393xb.c
+++ b/drivers/mfd/tc6393xb.c
@@ -513,7 +513,7 @@ static int tc6393xb_register_gpio(struct tc6393xb *tc6393xb, int gpio_base)
 static void
 tc6393xb_irq(unsigned int irq, struct irq_desc *desc)
 {
-	struct tc6393xb *tc6393xb = get_irq_data(irq);
+	struct tc6393xb *tc6393xb = irq_get_handler_data(irq);
 	unsigned int isr;
 	unsigned int i, irq_base;
 
@@ -572,15 +572,14 @@ static void tc6393xb_attach_irq(struct platform_device *dev)
 	irq_base = tc6393xb->irq_base;
 
 	for (irq = irq_base; irq < irq_base + TC6393XB_NR_IRQS; irq++) {
-		set_irq_chip(irq, &tc6393xb_chip);
-		set_irq_chip_data(irq, tc6393xb);
-		set_irq_handler(irq, handle_edge_irq);
+		irq_set_chip_and_handler(irq, &tc6393xb_chip, handle_edge_irq);
+		irq_set_chip_data(irq, tc6393xb);
 		set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
 	}
 
-	set_irq_type(tc6393xb->irq, IRQ_TYPE_EDGE_FALLING);
-	set_irq_data(tc6393xb->irq, tc6393xb);
-	set_irq_chained_handler(tc6393xb->irq, tc6393xb_irq);
+	irq_set_irq_type(tc6393xb->irq, IRQ_TYPE_EDGE_FALLING);
+	irq_set_handler_data(tc6393xb->irq, tc6393xb);
+	irq_set_chained_handler(tc6393xb->irq, tc6393xb_irq);
 }
 
 static void tc6393xb_detach_irq(struct platform_device *dev)
@@ -588,15 +587,15 @@ static void tc6393xb_detach_irq(struct platform_device *dev)
 	struct tc6393xb *tc6393xb = platform_get_drvdata(dev);
 	unsigned int irq, irq_base;
 
-	set_irq_chained_handler(tc6393xb->irq, NULL);
-	set_irq_data(tc6393xb->irq, NULL);
+	irq_set_chained_handler(tc6393xb->irq, NULL);
+	irq_set_handler_data(tc6393xb->irq, NULL);
 
 	irq_base = tc6393xb->irq_base;
 
 	for (irq = irq_base; irq < irq_base + TC6393XB_NR_IRQS; irq++) {
 		set_irq_flags(irq, 0);
-		set_irq_chip(irq, NULL);
-		set_irq_chip_data(irq, NULL);
+		irq_set_chip(irq, NULL);
+		irq_set_chip_data(irq, NULL);
 	}
 }
 
diff --git a/drivers/mfd/tps6586x.c b/drivers/mfd/tps6586x.c
index 0aa9186aec19..b600808690c1 100644
--- a/drivers/mfd/tps6586x.c
+++ b/drivers/mfd/tps6586x.c
@@ -422,10 +422,10 @@ static int __devinit tps6586x_irq_init(struct tps6586x *tps6586x, int irq,
 
 	for (i = 0; i < ARRAY_SIZE(tps6586x_irqs); i++) {
 		int __irq = i + tps6586x->irq_base;
-		set_irq_chip_data(__irq, tps6586x);
-		set_irq_chip_and_handler(__irq, &tps6586x->irq_chip,
+		irq_set_chip_data(__irq, tps6586x);
+		irq_set_chip_and_handler(__irq, &tps6586x->irq_chip,
 					 handle_simple_irq);
-		set_irq_nested_thread(__irq, 1);
+		irq_set_nested_thread(__irq, 1);
 #ifdef CONFIG_ARM
 		set_irq_flags(__irq, IRQF_VALID);
 #endif
diff --git a/drivers/mfd/twl4030-irq.c b/drivers/mfd/twl4030-irq.c
index 63a30e88908f..8a7ee3139b86 100644
--- a/drivers/mfd/twl4030-irq.c
+++ b/drivers/mfd/twl4030-irq.c
@@ -320,24 +320,8 @@ static int twl4030_irq_thread(void *data)
 		for (module_irq = twl4030_irq_base;
 				pih_isr;
 				pih_isr >>= 1, module_irq++) {
-			if (pih_isr & 0x1) {
-				struct irq_desc *d = irq_to_desc(module_irq);
-
-				if (!d) {
-					pr_err("twl4030: Invalid SIH IRQ: %d\n",
-					       module_irq);
-					return -EINVAL;
-				}
-
-				/* These can't be masked ... always warn
-				 * if we get any surprises.
-				 */
-				if (d->status & IRQ_DISABLED)
-					note_interrupt(module_irq, d,
-							IRQ_NONE);
-				else
-					d->handle_irq(module_irq, d);
-			}
+			if (pih_isr & 0x1)
+				generic_handle_irq(module_irq);
 		}
 		local_irq_enable();
 
@@ -470,7 +454,7 @@ static inline void activate_irq(int irq)
 	set_irq_flags(irq, IRQF_VALID);
 #else
 	/* same effect on other architectures */
-	set_irq_noprobe(irq);
+	irq_set_noprobe(irq);
 #endif
 }
 
@@ -560,24 +544,18 @@ static void twl4030_sih_do_edge(struct work_struct *work)
 	/* Modify only the bits we know must change */
 	while (edge_change) {
 		int		i = fls(edge_change) - 1;
-		struct irq_desc	*d = irq_to_desc(i + agent->irq_base);
+		struct irq_data	*idata = irq_get_irq_data(i + agent->irq_base);
 		int		byte = 1 + (i >> 2);
 		int		off = (i & 0x3) * 2;
-
-		if (!d) {
-			pr_err("twl4030: Invalid IRQ: %d\n",
-			       i + agent->irq_base);
-			return;
-		}
+		unsigned int	type;
 
 		bytes[byte] &= ~(0x03 << off);
 
-		raw_spin_lock_irq(&d->lock);
-		if (d->status & IRQ_TYPE_EDGE_RISING)
+		type = irqd_get_trigger_type(idata);
+		if (type & IRQ_TYPE_EDGE_RISING)
 			bytes[byte] |= BIT(off + 1);
-		if (d->status & IRQ_TYPE_EDGE_FALLING)
+		if (type & IRQ_TYPE_EDGE_FALLING)
 			bytes[byte] |= BIT(off + 0);
-		raw_spin_unlock_irq(&d->lock);
 
 		edge_change &= ~BIT(i);
 	}
@@ -626,21 +604,13 @@ static void twl4030_sih_unmask(struct irq_data *data)
 static int twl4030_sih_set_type(struct irq_data *data, unsigned trigger)
 {
 	struct sih_agent *sih = irq_data_get_irq_chip_data(data);
-	struct irq_desc *desc = irq_to_desc(data->irq);
 	unsigned long flags;
 
-	if (!desc) {
-		pr_err("twl4030: Invalid IRQ: %d\n", data->irq);
-		return -EINVAL;
-	}
-
 	if (trigger & ~(IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_EDGE_RISING))
 		return -EINVAL;
 
 	spin_lock_irqsave(&sih_agent_lock, flags);
-	if ((desc->status & IRQ_TYPE_SENSE_MASK) != trigger) {
-		desc->status &= ~IRQ_TYPE_SENSE_MASK;
-		desc->status |= trigger;
+	if (irqd_get_trigger_type(data) != trigger) {
 		sih->edge_change |= BIT(data->irq - sih->irq_base);
 		queue_work(wq, &sih->edge_work);
 	}
@@ -680,7 +650,7 @@ static inline int sih_read_isr(const struct sih *sih)
  */
 static void handle_twl4030_sih(unsigned irq, struct irq_desc *desc)
 {
-	struct sih_agent *agent = get_irq_data(irq);
+	struct sih_agent *agent = irq_get_handler_data(irq);
 	const struct sih *sih = agent->sih;
 	int isr;
 
@@ -754,9 +724,9 @@ int twl4030_sih_setup(int module)
 	for (i = 0; i < sih->bits; i++) {
 		irq = irq_base + i;
 
-		set_irq_chip_and_handler(irq, &twl4030_sih_irq_chip,
-				handle_edge_irq);
-		set_irq_chip_data(irq, agent);
+		irq_set_chip_and_handler(irq, &twl4030_sih_irq_chip,
+					 handle_edge_irq);
+		irq_set_chip_data(irq, agent);
 		activate_irq(irq);
 	}
 
@@ -765,8 +735,8 @@ int twl4030_sih_setup(int module)
 
 	/* replace generic PIH handler (handle_simple_irq) */
 	irq = sih_mod + twl4030_irq_base;
-	set_irq_data(irq, agent);
-	set_irq_chained_handler(irq, handle_twl4030_sih);
+	irq_set_handler_data(irq, agent);
+	irq_set_chained_handler(irq, handle_twl4030_sih);
 
 	pr_info("twl4030: %s (irq %d) chaining IRQs %d..%d\n", sih->name,
 			irq, irq_base, twl4030_irq_next - 1);
@@ -815,8 +785,8 @@ int twl4030_init_irq(int irq_num, unsigned irq_base, unsigned irq_end)
 	twl4030_sih_irq_chip.irq_ack = dummy_irq_chip.irq_ack;
 
 	for (i = irq_base; i < irq_end; i++) {
-		set_irq_chip_and_handler(i, &twl4030_irq_chip,
-				handle_simple_irq);
+		irq_set_chip_and_handler(i, &twl4030_irq_chip,
+					 handle_simple_irq);
 		activate_irq(i);
 	}
 	twl4030_irq_next = i;
@@ -856,7 +826,7 @@ fail_rqirq:
 	/* clean up twl4030_sih_setup */
 fail:
 	for (i = irq_base; i < irq_end; i++)
-		set_irq_chip_and_handler(i, NULL, NULL);
+		irq_set_chip_and_handler(i, NULL, NULL);
 	destroy_workqueue(wq);
 	wq = NULL;
 	return status;
diff --git a/drivers/mfd/twl6030-irq.c b/drivers/mfd/twl6030-irq.c
index 4082ed73613f..dfbae34e1804 100644
--- a/drivers/mfd/twl6030-irq.c
+++ b/drivers/mfd/twl6030-irq.c
@@ -140,22 +140,7 @@ static int twl6030_irq_thread(void *data)
 			if (sts.int_sts & 0x1) {
 				int module_irq = twl6030_irq_base +
 					twl6030_interrupt_mapping[i];
-				struct irq_desc *d = irq_to_desc(module_irq);
-
-				if (!d) {
-					pr_err("twl6030: Invalid SIH IRQ: %d\n",
-					       module_irq);
-					return -EINVAL;
-				}
-
-				/* These can't be masked ... always warn
-				 * if we get any surprises.
-				 */
-				if (d->status & IRQ_DISABLED)
-					note_interrupt(module_irq, d,
-							IRQ_NONE);
-				else
-					d->handle_irq(module_irq, d);
+				generic_handle_irq(module_irq);
 
 			}
 		local_irq_enable();
@@ -198,7 +183,7 @@ static inline void activate_irq(int irq)
 	set_irq_flags(irq, IRQF_VALID);
 #else
 	/* same effect on other architectures */
-	set_irq_noprobe(irq);
+	irq_set_noprobe(irq);
 #endif
 }
 
@@ -244,7 +229,7 @@ int twl6030_mmc_card_detect_config(void)
 	twl6030_interrupt_unmask(TWL6030_MMCDETECT_INT_MASK,
 						REG_INT_MSK_STS_B);
 	/*
-	 * Intially Configuring MMC_CTRL for receving interrupts &
+	 * Initially Configuring MMC_CTRL for receiving interrupts &
 	 * Card status on TWL6030 for MMC1
 	 */
 	ret = twl_i2c_read_u8(TWL6030_MODULE_ID0, &reg_val, TWL6030_MMCCTRL);
@@ -290,7 +275,7 @@ int twl6030_mmc_card_detect(struct device *dev, int slot)
 		/* TWL6030 provide's Card detect support for
 		 * only MMC1 controller.
 		 */
-		pr_err("Unkown MMC controller %d in %s\n", pdev->id, __func__);
+		pr_err("Unknown MMC controller %d in %s\n", pdev->id, __func__);
 		return ret;
 	}
 	/*
@@ -335,8 +320,8 @@ int twl6030_init_irq(int irq_num, unsigned irq_base, unsigned irq_end)
 	twl6030_irq_chip.irq_set_type = NULL;
 
 	for (i = irq_base; i < irq_end; i++) {
-		set_irq_chip_and_handler(i, &twl6030_irq_chip,
-				handle_simple_irq);
+		irq_set_chip_and_handler(i, &twl6030_irq_chip,
+					 handle_simple_irq);
 		activate_irq(i);
 	}
 
@@ -365,7 +350,7 @@ fail_irq:
 
 fail_kthread:
 	for (i = irq_base; i < irq_end; i++)
-		set_irq_chip_and_handler(i, NULL, NULL);
+		irq_set_chip_and_handler(i, NULL, NULL);
 	return status;
 }
 
diff --git a/drivers/mfd/ucb1400_core.c b/drivers/mfd/ucb1400_core.c
index d73f84ba0f08..daf69527ed83 100644
--- a/drivers/mfd/ucb1400_core.c
+++ b/drivers/mfd/ucb1400_core.c
@@ -8,7 +8,7 @@
  *  Copyright:	MontaVista Software, Inc.
  *
  * Spliting done by: Marek Vasut <marek.vasut@gmail.com>
- * If something doesnt work and it worked before spliting, e-mail me,
+ * If something doesn't work and it worked before spliting, e-mail me,
  * dont bother Nicolas please ;-)
  *
  * This program is free software; you can redistribute it and/or modify
diff --git a/drivers/mfd/wl1273-core.c b/drivers/mfd/wl1273-core.c
index f76f6c798046..04914f2836c0 100644
--- a/drivers/mfd/wl1273-core.c
+++ b/drivers/mfd/wl1273-core.c
@@ -25,7 +25,7 @@
 
 #define DRIVER_DESC "WL1273 FM Radio Core"
 
-static struct i2c_device_id wl1273_driver_id_table[] = {
+static const struct i2c_device_id wl1273_driver_id_table[] = {
 	{ WL1273_FM_DRIVER_NAME, 0 },
 	{ }
 };
diff --git a/drivers/mfd/wm831x-irq.c b/drivers/mfd/wm831x-irq.c
index a5cd17e18d09..23e66af89dea 100644
--- a/drivers/mfd/wm831x-irq.c
+++ b/drivers/mfd/wm831x-irq.c
@@ -553,17 +553,17 @@ int wm831x_irq_init(struct wm831x *wm831x, int irq)
 	for (cur_irq = wm831x->irq_base;
 	     cur_irq < ARRAY_SIZE(wm831x_irqs) + wm831x->irq_base;
 	     cur_irq++) {
-		set_irq_chip_data(cur_irq, wm831x);
-		set_irq_chip_and_handler(cur_irq, &wm831x_irq_chip,
+		irq_set_chip_data(cur_irq, wm831x);
+		irq_set_chip_and_handler(cur_irq, &wm831x_irq_chip,
 					 handle_edge_irq);
-		set_irq_nested_thread(cur_irq, 1);
+		irq_set_nested_thread(cur_irq, 1);
 
 		/* ARM needs us to explicitly flag the IRQ as valid
 		 * and will set them noprobe when we do so. */
 #ifdef CONFIG_ARM
 		set_irq_flags(cur_irq, IRQF_VALID);
 #else
-		set_irq_noprobe(cur_irq);
+		irq_set_noprobe(cur_irq);
 #endif
 	}
 
diff --git a/drivers/mfd/wm8350-irq.c b/drivers/mfd/wm8350-irq.c
index 5839966ebd85..ed4b22a167b3 100644
--- a/drivers/mfd/wm8350-irq.c
+++ b/drivers/mfd/wm8350-irq.c
@@ -518,17 +518,17 @@ int wm8350_irq_init(struct wm8350 *wm8350, int irq,
 	for (cur_irq = wm8350->irq_base;
 	     cur_irq < ARRAY_SIZE(wm8350_irqs) + wm8350->irq_base;
 	     cur_irq++) {
-		set_irq_chip_data(cur_irq, wm8350);
-		set_irq_chip_and_handler(cur_irq, &wm8350_irq_chip,
+		irq_set_chip_data(cur_irq, wm8350);
+		irq_set_chip_and_handler(cur_irq, &wm8350_irq_chip,
 					 handle_edge_irq);
-		set_irq_nested_thread(cur_irq, 1);
+		irq_set_nested_thread(cur_irq, 1);
 
 		/* ARM needs us to explicitly flag the IRQ as valid
 		 * and will set them noprobe when we do so. */
 #ifdef CONFIG_ARM
 		set_irq_flags(cur_irq, IRQF_VALID);
 #else
-		set_irq_noprobe(cur_irq);
+		irq_set_noprobe(cur_irq);
 #endif
 	}
 
diff --git a/drivers/mfd/wm8994-irq.c b/drivers/mfd/wm8994-irq.c
index 1e3bf4a2ff8e..71c6e8f9aedb 100644
--- a/drivers/mfd/wm8994-irq.c
+++ b/drivers/mfd/wm8994-irq.c
@@ -278,17 +278,17 @@ int wm8994_irq_init(struct wm8994 *wm8994)
 	for (cur_irq = wm8994->irq_base;
 	     cur_irq < ARRAY_SIZE(wm8994_irqs) + wm8994->irq_base;
 	     cur_irq++) {
-		set_irq_chip_data(cur_irq, wm8994);
-		set_irq_chip_and_handler(cur_irq, &wm8994_irq_chip,
+		irq_set_chip_data(cur_irq, wm8994);
+		irq_set_chip_and_handler(cur_irq, &wm8994_irq_chip,
 					 handle_edge_irq);
-		set_irq_nested_thread(cur_irq, 1);
+		irq_set_nested_thread(cur_irq, 1);
 
 		/* ARM needs us to explicitly flag the IRQ as valid
 		 * and will set them noprobe when we do so. */
 #ifdef CONFIG_ARM
 		set_irq_flags(cur_irq, IRQF_VALID);
 #else
-		set_irq_noprobe(cur_irq);
+		irq_set_noprobe(cur_irq);
 #endif
 	}
 
diff --git a/drivers/misc/bmp085.c b/drivers/misc/bmp085.c
index ecd276ad6b19..5f898cb706a6 100644
--- a/drivers/misc/bmp085.c
+++ b/drivers/misc/bmp085.c
@@ -2,7 +2,7 @@
 
     This driver supports the bmp085 digital barometric pressure
     and temperature sensor from Bosch Sensortec. The datasheet
-    is avaliable from their website:
+    is available from their website:
     http://www.bosch-sensortec.com/content/language1/downloads/BST-BMP085-DS000-05.pdf
 
     A pressure measurement is issued by reading from pressure0_input.
@@ -429,7 +429,7 @@ static int __devinit bmp085_probe(struct i2c_client *client,
 	if (err)
 		goto exit_free;
 
-	dev_info(&data->client->dev, "Succesfully initialized bmp085!\n");
+	dev_info(&data->client->dev, "Successfully initialized bmp085!\n");
 	goto exit;
 
 exit_free:
diff --git a/drivers/misc/c2port/c2port-duramar2150.c b/drivers/misc/c2port/c2port-duramar2150.c
index 338dcc121507..778fc3fdfb9b 100644
--- a/drivers/misc/c2port/c2port-duramar2150.c
+++ b/drivers/misc/c2port/c2port-duramar2150.c
@@ -41,7 +41,7 @@ static void duramar2150_c2port_access(struct c2port_device *dev, int status)
 		outb(v | (C2D | C2CK), DIR_PORT);
 	else
 		/* When access is "off" is important that both lines are set
-		 * as inputs or hi-impedence */
+		 * as inputs or hi-impedance */
 		outb(v & ~(C2D | C2CK), DIR_PORT);
 
 	mutex_unlock(&update_lock);
diff --git a/drivers/misc/ibmasm/remote.h b/drivers/misc/ibmasm/remote.h
index 72acf5af7a2a..00dbf1d4373a 100644
--- a/drivers/misc/ibmasm/remote.h
+++ b/drivers/misc/ibmasm/remote.h
@@ -20,7 +20,7 @@
  *
  * Author: Max Asböck <amax@us.ibm.com>
  *
- * Orignally written by Pete Reynolds
+ * Originally written by Pete Reynolds
  */
 
 #ifndef _IBMASM_REMOTE_H_
diff --git a/drivers/misc/iwmc3200top/main.c b/drivers/misc/iwmc3200top/main.c
index 727af07f1fbd..b1f4563be9ae 100644
--- a/drivers/misc/iwmc3200top/main.c
+++ b/drivers/misc/iwmc3200top/main.c
@@ -268,7 +268,7 @@ static void iwmct_irq_read_worker(struct work_struct *ws)
 		LOG_INFO(priv, IRQ, "ACK barker arrived "
 				"- starting FW download\n");
 	} else { /* REBOOT barker */
-		LOG_INFO(priv, IRQ, "Recieved reboot barker: %x\n", barker);
+		LOG_INFO(priv, IRQ, "Received reboot barker: %x\n", barker);
 		priv->barker = barker;
 
 		if (barker & BARKER_DNLOAD_SYNC_MSK) {
diff --git a/drivers/misc/kgdbts.c b/drivers/misc/kgdbts.c
index 59c118c19a91..74f16f167b8e 100644
--- a/drivers/misc/kgdbts.c
+++ b/drivers/misc/kgdbts.c
@@ -645,7 +645,7 @@ static int validate_simple_test(char *put_str)
 
 	while (*chk_str != '\0' && *put_str != '\0') {
 		/* If someone does a * to match the rest of the string, allow
-		 * it, or stop if the recieved string is complete.
+		 * it, or stop if the received string is complete.
 		 */
 		if (*put_str == '#' || *chk_str == '*')
 			return 0;
@@ -988,7 +988,7 @@ static void kgdbts_run_tests(void)
 
 static int kgdbts_option_setup(char *opt)
 {
-	if (strlen(opt) > MAX_CONFIG_LEN) {
+	if (strlen(opt) >= MAX_CONFIG_LEN) {
 		printk(KERN_ERR "kgdbts: config string too long\n");
 		return -ENOSPC;
 	}
diff --git a/drivers/misc/sgi-gru/grufile.c b/drivers/misc/sgi-gru/grufile.c
index 28852dfa310d..20e4e9395b61 100644
--- a/drivers/misc/sgi-gru/grufile.c
+++ b/drivers/misc/sgi-gru/grufile.c
@@ -373,7 +373,7 @@ static int gru_chiplet_setup_tlb_irq(int chiplet, char *irq_name,
 
 	if (gru_irq_count[chiplet] == 0) {
 		gru_chip[chiplet].name = irq_name;
-		ret = set_irq_chip(irq, &gru_chip[chiplet]);
+		ret = irq_set_chip(irq, &gru_chip[chiplet]);
 		if (ret) {
 			printk(KERN_ERR "%s: set_irq_chip failed, errno=%d\n",
 			       GRU_DRIVER_ID_STR, -ret);
diff --git a/drivers/misc/sgi-gru/grukservices.c b/drivers/misc/sgi-gru/grukservices.c
index 34749ee88dfa..9e9bddaa95ae 100644
--- a/drivers/misc/sgi-gru/grukservices.c
+++ b/drivers/misc/sgi-gru/grukservices.c
@@ -229,7 +229,7 @@ again:
 	bid = blade_id < 0 ? uv_numa_blade_id() : blade_id;
 	bs = gru_base[bid];
 
-	/* Handle the case where migration occured while waiting for the sema */
+	/* Handle the case where migration occurred while waiting for the sema */
 	down_read(&bs->bs_kgts_sema);
 	if (blade_id < 0 && bid != uv_numa_blade_id()) {
 		up_read(&bs->bs_kgts_sema);
diff --git a/drivers/misc/sgi-gru/grutables.h b/drivers/misc/sgi-gru/grutables.h
index 7a8b9068ea03..5c3ce2459675 100644
--- a/drivers/misc/sgi-gru/grutables.h
+++ b/drivers/misc/sgi-gru/grutables.h
@@ -379,7 +379,7 @@ struct gru_thread_state {
 						   required for contest */
 	char			ts_cch_req_slice;/* CCH packet slice */
 	char			ts_blade;	/* If >= 0, migrate context if
-						   ref from diferent blade */
+						   ref from different blade */
 	char			ts_force_cch_reload;
 	char			ts_cbr_idx[GRU_CBR_AU];/* CBR numbers of each
 							  allocated CB */
diff --git a/drivers/misc/ti-st/st_kim.c b/drivers/misc/ti-st/st_kim.c
index 9ee4c788aa69..b4488c8f6b23 100644
--- a/drivers/misc/ti-st/st_kim.c
+++ b/drivers/misc/ti-st/st_kim.c
@@ -649,7 +649,7 @@ static int kim_probe(struct platform_device *pdev)
 		/* multiple devices could exist */
 		st_kim_devices[pdev->id] = pdev;
 	} else {
-		/* platform's sure about existance of 1 device */
+		/* platform's sure about existence of 1 device */
 		st_kim_devices[0] = pdev;
 	}
 
diff --git a/drivers/mmc/card/mmc_test.c b/drivers/mmc/card/mmc_test.c
index 5ec8eddfcf6e..abc1a63bcc5e 100644
--- a/drivers/mmc/card/mmc_test.c
+++ b/drivers/mmc/card/mmc_test.c
@@ -292,7 +292,7 @@ static void mmc_test_free_mem(struct mmc_test_mem *mem)
 }
 
 /*
- * Allocate a lot of memory, preferrably max_sz but at least min_sz.  In case
+ * Allocate a lot of memory, preferably max_sz but at least min_sz.  In case
  * there isn't much memory do not exceed 1/16th total lowmem pages.  Also do
  * not exceed a maximum number of segments and try not to make segments much
  * bigger than maximum segment size.
@@ -1875,7 +1875,7 @@ static int mmc_test_seq_perf(struct mmc_test_card *test, int write,
 			     unsigned int tot_sz, int max_scatter)
 {
 	unsigned int dev_addr, i, cnt, sz, ssz;
-	struct timespec ts1, ts2, ts;
+	struct timespec ts1, ts2;
 	int ret;
 
 	sz = test->area.max_tfr;
@@ -1912,7 +1912,6 @@ static int mmc_test_seq_perf(struct mmc_test_card *test, int write,
 	}
 	getnstimeofday(&ts2);
 
-	ts = timespec_sub(ts2, ts1);
 	mmc_test_print_avg_rate(test, sz, cnt, &ts1, &ts2);
 
 	return 0;
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index 14e95f39a7bf..772d0d0a541b 100644
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -538,7 +538,7 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
 
 	/*
 	 * If enhanced_area_en is TRUE, host needs to enable ERASE_GRP_DEF
-	 * bit.  This bit will be lost everytime after a reset or power off.
+	 * bit.  This bit will be lost every time after a reset or power off.
 	 */
 	if (card->ext_csd.enhanced_area_en) {
 		err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
diff --git a/drivers/mmc/core/mmc_ops.c b/drivers/mmc/core/mmc_ops.c
index 60842f878ded..f3b22bf89cc9 100644
--- a/drivers/mmc/core/mmc_ops.c
+++ b/drivers/mmc/core/mmc_ops.c
@@ -105,7 +105,7 @@ int mmc_go_idle(struct mmc_host *host)
 	 * that in case of hardware that won't pull up DAT3/nCS otherwise.
 	 *
 	 * SPI hosts ignore ios.chip_select; it's managed according to
-	 * rules that must accomodate non-MMC slaves which this layer
+	 * rules that must accommodate non-MMC slaves which this layer
 	 * won't even know about.
 	 */
 	if (!mmc_host_is_spi(host)) {
diff --git a/drivers/mmc/core/sd_ops.c b/drivers/mmc/core/sd_ops.c
index 797cdb5887fd..76af349c14b4 100644
--- a/drivers/mmc/core/sd_ops.c
+++ b/drivers/mmc/core/sd_ops.c
@@ -9,6 +9,7 @@
  * your option) any later version.
  */
 
+#include <linux/slab.h>
 #include <linux/types.h>
 #include <linux/scatterlist.h>
 
@@ -252,6 +253,7 @@ int mmc_app_send_scr(struct mmc_card *card, u32 *scr)
 	struct mmc_command cmd;
 	struct mmc_data data;
 	struct scatterlist sg;
+	void *data_buf;
 
 	BUG_ON(!card);
 	BUG_ON(!card->host);
@@ -263,6 +265,13 @@ int mmc_app_send_scr(struct mmc_card *card, u32 *scr)
 	if (err)
 		return err;
 
+	/* dma onto stack is unsafe/nonportable, but callers to this
+	 * routine normally provide temporary on-stack buffers ...
+	 */
+	data_buf = kmalloc(sizeof(card->raw_scr), GFP_KERNEL);
+	if (data_buf == NULL)
+		return -ENOMEM;
+
 	memset(&mrq, 0, sizeof(struct mmc_request));
 	memset(&cmd, 0, sizeof(struct mmc_command));
 	memset(&data, 0, sizeof(struct mmc_data));
@@ -280,12 +289,15 @@ int mmc_app_send_scr(struct mmc_card *card, u32 *scr)
 	data.sg = &sg;
 	data.sg_len = 1;
 
-	sg_init_one(&sg, scr, 8);
+	sg_init_one(&sg, data_buf, 8);
 
 	mmc_set_data_timeout(&data, card);
 
 	mmc_wait_for_req(card->host, &mrq);
 
+	memcpy(scr, data_buf, sizeof(card->raw_scr));
+	kfree(data_buf);
+
 	if (cmd.error)
 		return cmd.error;
 	if (data.error)
diff --git a/drivers/mmc/core/sdio_irq.c b/drivers/mmc/core/sdio_irq.c
index bb192f90e8e9..b3001617e67d 100644
--- a/drivers/mmc/core/sdio_irq.c
+++ b/drivers/mmc/core/sdio_irq.c
@@ -45,7 +45,7 @@ static int process_sdio_pending_irqs(struct mmc_card *card)
 			struct sdio_func *func = card->sdio_func[i - 1];
 			if (!func) {
 				printk(KERN_WARNING "%s: pending IRQ for "
-					"non-existant function\n",
+					"non-existent function\n",
 					mmc_card_id(card));
 				ret = -EINVAL;
 			} else if (func->irq_handler) {
diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig
index 1a21c6427a19..94df40531c38 100644
--- a/drivers/mmc/host/Kconfig
+++ b/drivers/mmc/host/Kconfig
@@ -439,13 +439,25 @@ config MMC_SDRICOH_CS
 	  To compile this driver as a module, choose M here: the
 	  module will be called sdricoh_cs.
 
+config MMC_TMIO_CORE
+	tristate
+
 config MMC_TMIO
 	tristate "Toshiba Mobile IO Controller (TMIO) MMC/SD function support"
-	depends on MFD_TMIO || MFD_ASIC3 || MFD_SH_MOBILE_SDHI
+	depends on MFD_TMIO || MFD_ASIC3
+	select MMC_TMIO_CORE
 	help
 	  This provides support for the SD/MMC cell found in TC6393XB,
 	  T7L66XB and also HTC ASIC3
 
+config MMC_SDHI
+	tristate "SH-Mobile SDHI SD/SDIO controller support"
+	depends on SUPERH || ARCH_SHMOBILE
+	select MMC_TMIO_CORE
+	help
+	  This provides support for the SDHI SD/SDIO controller found in
+	  SuperH and ARM SH-Mobile SoCs
+
 config MMC_CB710
 	tristate "ENE CB710 MMC/SD Interface support"
 	depends on PCI
diff --git a/drivers/mmc/host/Makefile b/drivers/mmc/host/Makefile
index 30aa6867745f..4f1df0aae574 100644
--- a/drivers/mmc/host/Makefile
+++ b/drivers/mmc/host/Makefile
@@ -29,7 +29,13 @@ endif
 obj-$(CONFIG_MMC_S3C)   	+= s3cmci.o
 obj-$(CONFIG_MMC_SDRICOH_CS)	+= sdricoh_cs.o
 obj-$(CONFIG_MMC_TMIO)		+= tmio_mmc.o
-obj-$(CONFIG_MMC_CB710)	+= cb710-mmc.o
+obj-$(CONFIG_MMC_TMIO_CORE)	+= tmio_mmc_core.o
+tmio_mmc_core-y			:= tmio_mmc_pio.o
+ifneq ($(CONFIG_MMC_SDHI),n)
+tmio_mmc_core-y			+= tmio_mmc_dma.o
+endif
+obj-$(CONFIG_MMC_SDHI)		+= sh_mobile_sdhi.o
+obj-$(CONFIG_MMC_CB710)		+= cb710-mmc.o
 obj-$(CONFIG_MMC_VIA_SDMMC)	+= via-sdmmc.o
 obj-$(CONFIG_SDH_BFIN)		+= bfin_sdh.o
 obj-$(CONFIG_MMC_DW)		+= dw_mmc.o
diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c
index 80bc9a5c25cc..ea3888b65d5d 100644
--- a/drivers/mmc/host/atmel-mci.c
+++ b/drivers/mmc/host/atmel-mci.c
@@ -127,7 +127,7 @@ struct atmel_mci_dma {
  * EVENT_DATA_COMPLETE is set in @pending_events, all data-related
  * interrupts must be disabled and @data_status updated with a
  * snapshot of SR. Similarly, before EVENT_CMD_COMPLETE is set, the
- * CMDRDY interupt must be disabled and @cmd_status updated with a
+ * CMDRDY interrupt must be disabled and @cmd_status updated with a
  * snapshot of SR, and before EVENT_XFER_COMPLETE can be set, the
  * bytes_xfered field of @data must be written. This is ensured by
  * using barriers.
@@ -1082,7 +1082,7 @@ static void atmci_request_end(struct atmel_mci *host, struct mmc_request *mrq)
 	/*
 	 * Update the MMC clock rate if necessary. This may be
 	 * necessary if set_ios() is called when a different slot is
-	 * busy transfering data.
+	 * busy transferring data.
 	 */
 	if (host->need_clock_update) {
 		mci_writel(host, MR, host->mode_reg);
diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index 5a614069cb00..87e1f57ec9ba 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -316,7 +316,7 @@ static void dw_mci_idmac_stop_dma(struct dw_mci *host)
 
 	/* Stop the IDMAC running */
 	temp = mci_readl(host, BMOD);
-	temp &= ~SDMMC_IDMAC_ENABLE;
+	temp &= ~(SDMMC_IDMAC_ENABLE | SDMMC_IDMAC_FB);
 	mci_writel(host, BMOD, temp);
 }
 
@@ -385,7 +385,7 @@ static void dw_mci_idmac_start_dma(struct dw_mci *host, unsigned int sg_len)
 
 	/* Enable the IDMAC */
 	temp = mci_readl(host, BMOD);
-	temp |= SDMMC_IDMAC_ENABLE;
+	temp |= SDMMC_IDMAC_ENABLE | SDMMC_IDMAC_FB;
 	mci_writel(host, BMOD, temp);
 
 	/* Start it running */
diff --git a/drivers/mmc/host/mmc_spi.c b/drivers/mmc/host/mmc_spi.c
index 2f7fc0c5146f..7c1e16aaf17f 100644
--- a/drivers/mmc/host/mmc_spi.c
+++ b/drivers/mmc/host/mmc_spi.c
@@ -99,7 +99,7 @@
 #define r1b_timeout		(HZ * 3)
 
 /* One of the critical speed parameters is the amount of data which may
- * be transfered in one command. If this value is too low, the SD card
+ * be transferred in one command. If this value is too low, the SD card
  * controller has to do multiple partial block writes (argggh!). With
  * today (2008) SD cards there is little speed gain if we transfer more
  * than 64 KBytes at a time. So use this value until there is any indication
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index 5bbb87d10251..b4a7e4fba90f 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -68,6 +68,12 @@ static struct variant_data variant_arm = {
 	.datalength_bits	= 16,
 };
 
+static struct variant_data variant_arm_extended_fifo = {
+	.fifosize		= 128 * 4,
+	.fifohalfsize		= 64 * 4,
+	.datalength_bits	= 16,
+};
+
 static struct variant_data variant_u300 = {
 	.fifosize		= 16 * 4,
 	.fifohalfsize		= 8 * 4,
@@ -1277,10 +1283,15 @@ static int mmci_resume(struct amba_device *dev)
 static struct amba_id mmci_ids[] = {
 	{
 		.id	= 0x00041180,
-		.mask	= 0x000fffff,
+		.mask	= 0xff0fffff,
 		.data	= &variant_arm,
 	},
 	{
+		.id	= 0x01041180,
+		.mask	= 0xff0fffff,
+		.data	= &variant_arm_extended_fifo,
+	},
+	{
 		.id	= 0x00041181,
 		.mask	= 0x000fffff,
 		.data	= &variant_arm,
diff --git a/drivers/mmc/host/of_mmc_spi.c b/drivers/mmc/host/of_mmc_spi.c
index 5530def54e5b..e2aecb7f1d5c 100644
--- a/drivers/mmc/host/of_mmc_spi.c
+++ b/drivers/mmc/host/of_mmc_spi.c
@@ -15,9 +15,11 @@
 #include <linux/module.h>
 #include <linux/device.h>
 #include <linux/slab.h>
+#include <linux/irq.h>
 #include <linux/gpio.h>
 #include <linux/of.h>
 #include <linux/of_gpio.h>
+#include <linux/of_irq.h>
 #include <linux/spi/spi.h>
 #include <linux/spi/mmc_spi.h>
 #include <linux/mmc/core.h>
diff --git a/drivers/mmc/host/s3cmci.c b/drivers/mmc/host/s3cmci.c
index 1ccd4b256cee..a04f87d7ee3d 100644
--- a/drivers/mmc/host/s3cmci.c
+++ b/drivers/mmc/host/s3cmci.c
@@ -874,7 +874,7 @@ static void finalize_request(struct s3cmci_host *host)
 	if (!mrq->data)
 		goto request_done;
 
-	/* Calulate the amout of bytes transfer if there was no error */
+	/* Calculate the amout of bytes transfer if there was no error */
 	if (mrq->data->error == 0) {
 		mrq->data->bytes_xfered =
 			(mrq->data->blocks * mrq->data->blksz);
@@ -882,7 +882,7 @@ static void finalize_request(struct s3cmci_host *host)
 		mrq->data->bytes_xfered = 0;
 	}
 
-	/* If we had an error while transfering data we flush the
+	/* If we had an error while transferring data we flush the
 	 * DMA channel and the fifo to clear out any garbage. */
 	if (mrq->data->error != 0) {
 		if (s3cmci_host_usedma(host))
@@ -980,7 +980,7 @@ static int s3cmci_setup_data(struct s3cmci_host *host, struct mmc_data *data)
 
 	if ((data->blksz & 3) != 0) {
 		/* We cannot deal with unaligned blocks with more than
-		 * one block being transfered. */
+		 * one block being transferred. */
 
 		if (data->blocks > 1) {
 			pr_warning("%s: can't do non-word sized block transfers (blksz %d)\n", __func__, data->blksz);
diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
index 3b5248567973..a19967d0bfc4 100644
--- a/drivers/mmc/host/sdhci-esdhc-imx.c
+++ b/drivers/mmc/host/sdhci-esdhc-imx.c
@@ -16,14 +16,40 @@
 #include <linux/err.h>
 #include <linux/clk.h>
 #include <linux/gpio.h>
+#include <linux/slab.h>
 #include <linux/mmc/host.h>
 #include <linux/mmc/sdhci-pltfm.h>
+#include <linux/mmc/mmc.h>
+#include <linux/mmc/sdio.h>
 #include <mach/hardware.h>
 #include <mach/esdhc.h>
 #include "sdhci.h"
 #include "sdhci-pltfm.h"
 #include "sdhci-esdhc.h"
 
+/* VENDOR SPEC register */
+#define SDHCI_VENDOR_SPEC		0xC0
+#define  SDHCI_VENDOR_SPEC_SDIO_QUIRK	0x00000002
+
+#define ESDHC_FLAG_GPIO_FOR_CD_WP	(1 << 0)
+/*
+ * The CMDTYPE of the CMD register (offset 0xE) should be set to
+ * "11" when the STOP CMD12 is issued on imx53 to abort one
+ * open ended multi-blk IO. Otherwise the TC INT wouldn't
+ * be generated.
+ * In exact block transfer, the controller doesn't complete the
+ * operations automatically as required at the end of the
+ * transfer and remains on hold if the abort command is not sent.
+ * As a result, the TC flag is not asserted and SW  received timeout
+ * exeception. Bit1 of Vendor Spec registor is used to fix it.
+ */
+#define ESDHC_FLAG_MULTIBLK_NO_INT	(1 << 1)
+
+struct pltfm_imx_data {
+	int flags;
+	u32 scratchpad;
+};
+
 static inline void esdhc_clrset_le(struct sdhci_host *host, u32 mask, u32 val, int reg)
 {
 	void __iomem *base = host->ioaddr + (reg & ~0x3);
@@ -34,10 +60,14 @@ static inline void esdhc_clrset_le(struct sdhci_host *host, u32 mask, u32 val, i
 
 static u32 esdhc_readl_le(struct sdhci_host *host, int reg)
 {
+	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+	struct pltfm_imx_data *imx_data = pltfm_host->priv;
+
 	/* fake CARD_PRESENT flag on mx25/35 */
 	u32 val = readl(host->ioaddr + reg);
 
-	if (unlikely(reg == SDHCI_PRESENT_STATE)) {
+	if (unlikely((reg == SDHCI_PRESENT_STATE)
+			&& (imx_data->flags & ESDHC_FLAG_GPIO_FOR_CD_WP))) {
 		struct esdhc_platform_data *boarddata =
 				host->mmc->parent->platform_data;
 
@@ -55,13 +85,26 @@ static u32 esdhc_readl_le(struct sdhci_host *host, int reg)
 
 static void esdhc_writel_le(struct sdhci_host *host, u32 val, int reg)
 {
-	if (unlikely(reg == SDHCI_INT_ENABLE || reg == SDHCI_SIGNAL_ENABLE))
+	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+	struct pltfm_imx_data *imx_data = pltfm_host->priv;
+
+	if (unlikely((reg == SDHCI_INT_ENABLE || reg == SDHCI_SIGNAL_ENABLE)
+			&& (imx_data->flags & ESDHC_FLAG_GPIO_FOR_CD_WP)))
 		/*
 		 * these interrupts won't work with a custom card_detect gpio
 		 * (only applied to mx25/35)
 		 */
 		val &= ~(SDHCI_INT_CARD_REMOVE | SDHCI_INT_CARD_INSERT);
 
+	if (unlikely((imx_data->flags & ESDHC_FLAG_MULTIBLK_NO_INT)
+				&& (reg == SDHCI_INT_STATUS)
+				&& (val & SDHCI_INT_DATA_END))) {
+			u32 v;
+			v = readl(host->ioaddr + SDHCI_VENDOR_SPEC);
+			v &= ~SDHCI_VENDOR_SPEC_SDIO_QUIRK;
+			writel(v, host->ioaddr + SDHCI_VENDOR_SPEC);
+	}
+
 	writel(val, host->ioaddr + reg);
 }
 
@@ -76,6 +119,7 @@ static u16 esdhc_readw_le(struct sdhci_host *host, int reg)
 static void esdhc_writew_le(struct sdhci_host *host, u16 val, int reg)
 {
 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+	struct pltfm_imx_data *imx_data = pltfm_host->priv;
 
 	switch (reg) {
 	case SDHCI_TRANSFER_MODE:
@@ -83,10 +127,22 @@ static void esdhc_writew_le(struct sdhci_host *host, u16 val, int reg)
 		 * Postpone this write, we must do it together with a
 		 * command write that is down below.
 		 */
-		pltfm_host->scratchpad = val;
+		if ((imx_data->flags & ESDHC_FLAG_MULTIBLK_NO_INT)
+				&& (host->cmd->opcode == SD_IO_RW_EXTENDED)
+				&& (host->cmd->data->blocks > 1)
+				&& (host->cmd->data->flags & MMC_DATA_READ)) {
+			u32 v;
+			v = readl(host->ioaddr + SDHCI_VENDOR_SPEC);
+			v |= SDHCI_VENDOR_SPEC_SDIO_QUIRK;
+			writel(v, host->ioaddr + SDHCI_VENDOR_SPEC);
+		}
+		imx_data->scratchpad = val;
 		return;
 	case SDHCI_COMMAND:
-		writel(val << 16 | pltfm_host->scratchpad,
+		if ((host->cmd->opcode == MMC_STOP_TRANSMISSION)
+			&& (imx_data->flags & ESDHC_FLAG_MULTIBLK_NO_INT))
+			val |= SDHCI_CMD_ABORTCMD;
+		writel(val << 16 | imx_data->scratchpad,
 			host->ioaddr + SDHCI_TRANSFER_MODE);
 		return;
 	case SDHCI_BLOCK_SIZE:
@@ -146,7 +202,9 @@ static unsigned int esdhc_pltfm_get_ro(struct sdhci_host *host)
 }
 
 static struct sdhci_ops sdhci_esdhc_ops = {
+	.read_l = esdhc_readl_le,
 	.read_w = esdhc_readw_le,
+	.write_l = esdhc_writel_le,
 	.write_w = esdhc_writew_le,
 	.write_b = esdhc_writeb_le,
 	.set_clock = esdhc_set_clock,
@@ -168,6 +226,7 @@ static int esdhc_pltfm_init(struct sdhci_host *host, struct sdhci_pltfm_data *pd
 	struct esdhc_platform_data *boarddata = host->mmc->parent->platform_data;
 	struct clk *clk;
 	int err;
+	struct pltfm_imx_data *imx_data;
 
 	clk = clk_get(mmc_dev(host->mmc), NULL);
 	if (IS_ERR(clk)) {
@@ -177,7 +236,15 @@ static int esdhc_pltfm_init(struct sdhci_host *host, struct sdhci_pltfm_data *pd
 	clk_enable(clk);
 	pltfm_host->clk = clk;
 
-	if (cpu_is_mx35() || cpu_is_mx51())
+	imx_data = kzalloc(sizeof(struct pltfm_imx_data), GFP_KERNEL);
+	if (!imx_data) {
+		clk_disable(pltfm_host->clk);
+		clk_put(pltfm_host->clk);
+		return -ENOMEM;
+	}
+	pltfm_host->priv = imx_data;
+
+	if (!cpu_is_mx25())
 		host->quirks |= SDHCI_QUIRK_BROKEN_TIMEOUT_VAL;
 
 	if (cpu_is_mx25() || cpu_is_mx35()) {
@@ -187,6 +254,9 @@ static int esdhc_pltfm_init(struct sdhci_host *host, struct sdhci_pltfm_data *pd
 		sdhci_esdhc_ops.get_ro = esdhc_pltfm_get_ro;
 	}
 
+	if (!(cpu_is_mx25() || cpu_is_mx35() || cpu_is_mx51()))
+		imx_data->flags |= ESDHC_FLAG_MULTIBLK_NO_INT;
+
 	if (boarddata) {
 		err = gpio_request_one(boarddata->wp_gpio, GPIOF_IN, "ESDHC_WP");
 		if (err) {
@@ -214,8 +284,7 @@ static int esdhc_pltfm_init(struct sdhci_host *host, struct sdhci_pltfm_data *pd
 			goto no_card_detect_irq;
 		}
 
-		sdhci_esdhc_ops.write_l = esdhc_writel_le;
-		sdhci_esdhc_ops.read_l = esdhc_readl_le;
+		imx_data->flags |= ESDHC_FLAG_GPIO_FOR_CD_WP;
 		/* Now we have a working card_detect again */
 		host->quirks &= ~SDHCI_QUIRK_BROKEN_CARD_DETECTION;
 	}
@@ -227,6 +296,7 @@ static int esdhc_pltfm_init(struct sdhci_host *host, struct sdhci_pltfm_data *pd
  no_card_detect_pin:
 	boarddata->cd_gpio = err;
  not_supported:
+	kfree(imx_data);
 	return 0;
 }
 
@@ -234,6 +304,7 @@ static void esdhc_pltfm_exit(struct sdhci_host *host)
 {
 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
 	struct esdhc_platform_data *boarddata = host->mmc->parent->platform_data;
+	struct pltfm_imx_data *imx_data = pltfm_host->priv;
 
 	if (boarddata && gpio_is_valid(boarddata->wp_gpio))
 		gpio_free(boarddata->wp_gpio);
@@ -247,6 +318,7 @@ static void esdhc_pltfm_exit(struct sdhci_host *host)
 
 	clk_disable(pltfm_host->clk);
 	clk_put(pltfm_host->clk);
+	kfree(imx_data);
 }
 
 struct sdhci_pltfm_data sdhci_esdhc_imx_pdata = {
diff --git a/drivers/mmc/host/sdhci-esdhc.h b/drivers/mmc/host/sdhci-esdhc.h
index c55aae828aac..c3b08f111942 100644
--- a/drivers/mmc/host/sdhci-esdhc.h
+++ b/drivers/mmc/host/sdhci-esdhc.h
@@ -23,8 +23,7 @@
 				SDHCI_QUIRK_NONSTANDARD_CLOCK | \
 				SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK | \
 				SDHCI_QUIRK_PIO_NEEDS_DELAY | \
-				SDHCI_QUIRK_RESTORE_IRQS_AFTER_RESET | \
-				SDHCI_QUIRK_NO_CARD_NO_RESET)
+				SDHCI_QUIRK_RESTORE_IRQS_AFTER_RESET)
 
 #define ESDHC_SYSTEM_CONTROL	0x2c
 #define ESDHC_CLOCK_MASK	0x0000fff0
diff --git a/drivers/mmc/host/sdhci-of-esdhc.c b/drivers/mmc/host/sdhci-of-esdhc.c
index 08161f690ae8..ba40d6d035c7 100644
--- a/drivers/mmc/host/sdhci-of-esdhc.c
+++ b/drivers/mmc/host/sdhci-of-esdhc.c
@@ -74,7 +74,8 @@ static unsigned int esdhc_of_get_min_clock(struct sdhci_host *host)
 
 struct sdhci_of_data sdhci_esdhc = {
 	/* card detection could be handled via GPIO */
-	.quirks = ESDHC_DEFAULT_QUIRKS | SDHCI_QUIRK_BROKEN_CARD_DETECTION,
+	.quirks = ESDHC_DEFAULT_QUIRKS | SDHCI_QUIRK_BROKEN_CARD_DETECTION
+		| SDHCI_QUIRK_NO_CARD_NO_RESET,
 	.ops = {
 		.read_l = sdhci_be32bs_readl,
 		.read_w = esdhc_readw,
diff --git a/drivers/mmc/host/sdhci-pci.c b/drivers/mmc/host/sdhci-pci.c
index 2f8d46854acd..a136be706347 100644
--- a/drivers/mmc/host/sdhci-pci.c
+++ b/drivers/mmc/host/sdhci-pci.c
@@ -1016,16 +1016,14 @@ static int __devinit sdhci_pci_probe(struct pci_dev *pdev,
 	struct sdhci_pci_chip *chip;
 	struct sdhci_pci_slot *slot;
 
-	u8 slots, rev, first_bar;
+	u8 slots, first_bar;
 	int ret, i;
 
 	BUG_ON(pdev == NULL);
 	BUG_ON(ent == NULL);
 
-	pci_read_config_byte(pdev, PCI_CLASS_REVISION, &rev);
-
 	dev_info(&pdev->dev, "SDHCI controller found [%04x:%04x] (rev %x)\n",
-		 (int)pdev->vendor, (int)pdev->device, (int)rev);
+		 (int)pdev->vendor, (int)pdev->device, (int)pdev->revision);
 
 	ret = pci_read_config_byte(pdev, PCI_SLOT_INFO, &slots);
 	if (ret)
diff --git a/drivers/mmc/host/sdhci-pltfm.h b/drivers/mmc/host/sdhci-pltfm.h
index ea2e44d9be5e..2b37016ad0ac 100644
--- a/drivers/mmc/host/sdhci-pltfm.h
+++ b/drivers/mmc/host/sdhci-pltfm.h
@@ -17,7 +17,7 @@
 
 struct sdhci_pltfm_host {
 	struct clk *clk;
-	u32 scratchpad; /* to handle quirks across io-accessor calls */
+	void *priv; /* to handle quirks across io-accessor calls */
 };
 
 extern struct sdhci_pltfm_data sdhci_cns3xxx_pdata;
diff --git a/drivers/mmc/host/sdhci-spear.c b/drivers/mmc/host/sdhci-spear.c
index d70c54c7b70a..60a4c97d3d18 100644
--- a/drivers/mmc/host/sdhci-spear.c
+++ b/drivers/mmc/host/sdhci-spear.c
@@ -50,7 +50,7 @@ static irqreturn_t sdhci_gpio_irq(int irq, void *dev_id)
 	/* val == 1 -> card removed, val == 0 -> card inserted */
 	/* if card removed - set irq for low level, else vice versa */
 	gpio_irq_type = val ? IRQF_TRIGGER_LOW : IRQF_TRIGGER_HIGH;
-	set_irq_type(irq, gpio_irq_type);
+	irq_set_irq_type(irq, gpio_irq_type);
 
 	if (sdhci->data->card_power_gpio >= 0) {
 		if (!sdhci->data->power_always_enb) {
diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h
index 6e0969e40650..25e8bde600d1 100644
--- a/drivers/mmc/host/sdhci.h
+++ b/drivers/mmc/host/sdhci.h
@@ -45,6 +45,7 @@
 #define  SDHCI_CMD_CRC		0x08
 #define  SDHCI_CMD_INDEX	0x10
 #define  SDHCI_CMD_DATA		0x20
+#define  SDHCI_CMD_ABORTCMD	0xC0
 
 #define  SDHCI_CMD_RESP_NONE	0x00
 #define  SDHCI_CMD_RESP_LONG	0x01
diff --git a/drivers/mfd/sh_mobile_sdhi.c b/drivers/mmc/host/sh_mobile_sdhi.c
index 53a63024bf11..cc701236d16f 100644
--- a/drivers/mfd/sh_mobile_sdhi.c
+++ b/drivers/mmc/host/sh_mobile_sdhi.c
@@ -23,51 +23,30 @@
 #include <linux/slab.h>
 #include <linux/platform_device.h>
 #include <linux/mmc/host.h>
-#include <linux/mfd/core.h>
+#include <linux/mmc/sh_mobile_sdhi.h>
 #include <linux/mfd/tmio.h>
-#include <linux/mfd/sh_mobile_sdhi.h>
 #include <linux/sh_dma.h>
 
+#include "tmio_mmc.h"
+
 struct sh_mobile_sdhi {
 	struct clk *clk;
 	struct tmio_mmc_data mmc_data;
-	struct mfd_cell cell_mmc;
 	struct sh_dmae_slave param_tx;
 	struct sh_dmae_slave param_rx;
 	struct tmio_mmc_dma dma_priv;
 };
 
-static struct resource sh_mobile_sdhi_resources[] = {
-	{
-		.start = 0x000,
-		.end   = 0x1ff,
-		.flags = IORESOURCE_MEM,
-	},
-	{
-		.start = 0,
-		.end   = 0,
-		.flags = IORESOURCE_IRQ,
-	},
-};
-
-static struct mfd_cell sh_mobile_sdhi_cell = {
-	.name          = "tmio-mmc",
-	.num_resources = ARRAY_SIZE(sh_mobile_sdhi_resources),
-	.resources     = sh_mobile_sdhi_resources,
-};
-
-static void sh_mobile_sdhi_set_pwr(struct platform_device *tmio, int state)
+static void sh_mobile_sdhi_set_pwr(struct platform_device *pdev, int state)
 {
-	struct platform_device *pdev = to_platform_device(tmio->dev.parent);
 	struct sh_mobile_sdhi_info *p = pdev->dev.platform_data;
 
 	if (p && p->set_pwr)
 		p->set_pwr(pdev, state);
 }
 
-static int sh_mobile_sdhi_get_cd(struct platform_device *tmio)
+static int sh_mobile_sdhi_get_cd(struct platform_device *pdev)
 {
-	struct platform_device *pdev = to_platform_device(tmio->dev.parent);
 	struct sh_mobile_sdhi_info *p = pdev->dev.platform_data;
 
 	if (p && p->get_cd)
@@ -81,20 +60,9 @@ static int __devinit sh_mobile_sdhi_probe(struct platform_device *pdev)
 	struct sh_mobile_sdhi *priv;
 	struct tmio_mmc_data *mmc_data;
 	struct sh_mobile_sdhi_info *p = pdev->dev.platform_data;
-	struct resource *mem;
+	struct tmio_mmc_host *host;
 	char clk_name[8];
-	int ret, irq;
-
-	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!mem)
-		dev_err(&pdev->dev, "missing MEM resource\n");
-
-	irq = platform_get_irq(pdev, 0);
-	if (irq < 0)
-		dev_err(&pdev->dev, "missing IRQ resource\n");
-
-	if (!mem || (irq < 0))
-		return -EINVAL;
+	int ret;
 
 	priv = kzalloc(sizeof(struct sh_mobile_sdhi), GFP_KERNEL);
 	if (priv == NULL) {
@@ -109,8 +77,7 @@ static int __devinit sh_mobile_sdhi_probe(struct platform_device *pdev)
 	if (IS_ERR(priv->clk)) {
 		dev_err(&pdev->dev, "cannot get clock \"%s\"\n", clk_name);
 		ret = PTR_ERR(priv->clk);
-		kfree(priv);
-		return ret;
+		goto eclkget;
 	}
 
 	clk_enable(priv->clk);
@@ -123,6 +90,15 @@ static int __devinit sh_mobile_sdhi_probe(struct platform_device *pdev)
 		mmc_data->flags = p->tmio_flags;
 		mmc_data->ocr_mask = p->tmio_ocr_mask;
 		mmc_data->capabilities |= p->tmio_caps;
+
+		if (p->dma_slave_tx >= 0 && p->dma_slave_rx >= 0) {
+			priv->param_tx.slave_id = p->dma_slave_tx;
+			priv->param_rx.slave_id = p->dma_slave_rx;
+			priv->dma_priv.chan_priv_tx = &priv->param_tx;
+			priv->dma_priv.chan_priv_rx = &priv->param_rx;
+			priv->dma_priv.alignment_shift = 1; /* 2-byte alignment */
+			mmc_data->dma = &priv->dma_priv;
+		}
 	}
 
 	/*
@@ -136,36 +112,30 @@ static int __devinit sh_mobile_sdhi_probe(struct platform_device *pdev)
 	 */
 	mmc_data->flags |= TMIO_MMC_SDIO_IRQ;
 
-	if (p && p->dma_slave_tx >= 0 && p->dma_slave_rx >= 0) {
-		priv->param_tx.slave_id = p->dma_slave_tx;
-		priv->param_rx.slave_id = p->dma_slave_rx;
-		priv->dma_priv.chan_priv_tx = &priv->param_tx;
-		priv->dma_priv.chan_priv_rx = &priv->param_rx;
-		priv->dma_priv.alignment_shift = 1; /* 2-byte alignment */
-		mmc_data->dma = &priv->dma_priv;
-	}
+	ret = tmio_mmc_host_probe(&host, pdev, mmc_data);
+	if (ret < 0)
+		goto eprobe;
 
-	memcpy(&priv->cell_mmc, &sh_mobile_sdhi_cell, sizeof(priv->cell_mmc));
-	priv->cell_mmc.mfd_data = mmc_data;
+	pr_info("%s at 0x%08lx irq %d\n", mmc_hostname(host->mmc),
+		(unsigned long)host->ctl, host->irq);
 
-	platform_set_drvdata(pdev, priv);
-
-	ret = mfd_add_devices(&pdev->dev, pdev->id,
-			      &priv->cell_mmc, 1, mem, irq);
-	if (ret) {
-		clk_disable(priv->clk);
-		clk_put(priv->clk);
-		kfree(priv);
-	}
+	return ret;
 
+eprobe:
+	clk_disable(priv->clk);
+	clk_put(priv->clk);
+eclkget:
+	kfree(priv);
 	return ret;
 }
 
 static int sh_mobile_sdhi_remove(struct platform_device *pdev)
 {
-	struct sh_mobile_sdhi *priv = platform_get_drvdata(pdev);
+	struct mmc_host *mmc = platform_get_drvdata(pdev);
+	struct tmio_mmc_host *host = mmc_priv(mmc);
+	struct sh_mobile_sdhi *priv = container_of(host->pdata, struct sh_mobile_sdhi, mmc_data);
 
-	mfd_remove_devices(&pdev->dev);
+	tmio_mmc_host_remove(host);
 	clk_disable(priv->clk);
 	clk_put(priv->clk);
 	kfree(priv);
@@ -198,3 +168,4 @@ module_exit(sh_mobile_sdhi_exit);
 MODULE_DESCRIPTION("SuperH Mobile SDHI driver");
 MODULE_AUTHOR("Magnus Damm");
 MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:sh_mobile_sdhi");
diff --git a/drivers/mmc/host/tmio_mmc.c b/drivers/mmc/host/tmio_mmc.c
index ab1adeabdd22..79c568461d59 100644
--- a/drivers/mmc/host/tmio_mmc.c
+++ b/drivers/mmc/host/tmio_mmc.c
@@ -1,8 +1,8 @@
 /*
- *  linux/drivers/mmc/tmio_mmc.c
+ * linux/drivers/mmc/host/tmio_mmc.c
  *
- *  Copyright (C) 2004 Ian Molton
- *  Copyright (C) 2007 Ian Molton
+ * Copyright (C) 2007 Ian Molton
+ * Copyright (C) 2004 Ian Molton
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -11,1182 +11,17 @@
  * Driver for the MMC / SD / SDIO cell found in:
  *
  * TC6393XB TC6391XB TC6387XB T7L66XB ASIC3
- *
- * This driver draws mainly on scattered spec sheets, Reverse engineering
- * of the toshiba e800  SD driver and some parts of the 2.4 ASIC3 driver (4 bit
- * support). (Further 4 bit support from a later datasheet).
- *
- * TODO:
- *   Investigate using a workqueue for PIO transfers
- *   Eliminate FIXMEs
- *   SDIO support
- *   Better Power management
- *   Handle MMC errors better
- *   double buffer support
- *
  */
 
-#include <linux/delay.h>
 #include <linux/device.h>
-#include <linux/dmaengine.h>
-#include <linux/highmem.h>
-#include <linux/interrupt.h>
-#include <linux/io.h>
-#include <linux/irq.h>
 #include <linux/mfd/core.h>
 #include <linux/mfd/tmio.h>
 #include <linux/mmc/host.h>
 #include <linux/module.h>
 #include <linux/pagemap.h>
 #include <linux/scatterlist.h>
-#include <linux/workqueue.h>
-#include <linux/spinlock.h>
-
-#define CTL_SD_CMD 0x00
-#define CTL_ARG_REG 0x04
-#define CTL_STOP_INTERNAL_ACTION 0x08
-#define CTL_XFER_BLK_COUNT 0xa
-#define CTL_RESPONSE 0x0c
-#define CTL_STATUS 0x1c
-#define CTL_IRQ_MASK 0x20
-#define CTL_SD_CARD_CLK_CTL 0x24
-#define CTL_SD_XFER_LEN 0x26
-#define CTL_SD_MEM_CARD_OPT 0x28
-#define CTL_SD_ERROR_DETAIL_STATUS 0x2c
-#define CTL_SD_DATA_PORT 0x30
-#define CTL_TRANSACTION_CTL 0x34
-#define CTL_SDIO_STATUS 0x36
-#define CTL_SDIO_IRQ_MASK 0x38
-#define CTL_RESET_SD 0xe0
-#define CTL_SDIO_REGS 0x100
-#define CTL_CLK_AND_WAIT_CTL 0x138
-#define CTL_RESET_SDIO 0x1e0
-
-/* Definitions for values the CTRL_STATUS register can take. */
-#define TMIO_STAT_CMDRESPEND    0x00000001
-#define TMIO_STAT_DATAEND       0x00000004
-#define TMIO_STAT_CARD_REMOVE   0x00000008
-#define TMIO_STAT_CARD_INSERT   0x00000010
-#define TMIO_STAT_SIGSTATE      0x00000020
-#define TMIO_STAT_WRPROTECT     0x00000080
-#define TMIO_STAT_CARD_REMOVE_A 0x00000100
-#define TMIO_STAT_CARD_INSERT_A 0x00000200
-#define TMIO_STAT_SIGSTATE_A    0x00000400
-#define TMIO_STAT_CMD_IDX_ERR   0x00010000
-#define TMIO_STAT_CRCFAIL       0x00020000
-#define TMIO_STAT_STOPBIT_ERR   0x00040000
-#define TMIO_STAT_DATATIMEOUT   0x00080000
-#define TMIO_STAT_RXOVERFLOW    0x00100000
-#define TMIO_STAT_TXUNDERRUN    0x00200000
-#define TMIO_STAT_CMDTIMEOUT    0x00400000
-#define TMIO_STAT_RXRDY         0x01000000
-#define TMIO_STAT_TXRQ          0x02000000
-#define TMIO_STAT_ILL_FUNC      0x20000000
-#define TMIO_STAT_CMD_BUSY      0x40000000
-#define TMIO_STAT_ILL_ACCESS    0x80000000
-
-/* Definitions for values the CTRL_SDIO_STATUS register can take. */
-#define TMIO_SDIO_STAT_IOIRQ	0x0001
-#define TMIO_SDIO_STAT_EXPUB52	0x4000
-#define TMIO_SDIO_STAT_EXWT	0x8000
-#define TMIO_SDIO_MASK_ALL	0xc007
-
-/* Define some IRQ masks */
-/* This is the mask used at reset by the chip */
-#define TMIO_MASK_ALL           0x837f031d
-#define TMIO_MASK_READOP  (TMIO_STAT_RXRDY | TMIO_STAT_DATAEND)
-#define TMIO_MASK_WRITEOP (TMIO_STAT_TXRQ | TMIO_STAT_DATAEND)
-#define TMIO_MASK_CMD     (TMIO_STAT_CMDRESPEND | TMIO_STAT_CMDTIMEOUT | \
-		TMIO_STAT_CARD_REMOVE | TMIO_STAT_CARD_INSERT)
-#define TMIO_MASK_IRQ     (TMIO_MASK_READOP | TMIO_MASK_WRITEOP | TMIO_MASK_CMD)
-
-#define enable_mmc_irqs(host, i) \
-	do { \
-		u32 mask;\
-		mask  = sd_ctrl_read32((host), CTL_IRQ_MASK); \
-		mask &= ~((i) & TMIO_MASK_IRQ); \
-		sd_ctrl_write32((host), CTL_IRQ_MASK, mask); \
-	} while (0)
-
-#define disable_mmc_irqs(host, i) \
-	do { \
-		u32 mask;\
-		mask  = sd_ctrl_read32((host), CTL_IRQ_MASK); \
-		mask |= ((i) & TMIO_MASK_IRQ); \
-		sd_ctrl_write32((host), CTL_IRQ_MASK, mask); \
-	} while (0)
-
-#define ack_mmc_irqs(host, i) \
-	do { \
-		sd_ctrl_write32((host), CTL_STATUS, ~(i)); \
-	} while (0)
-
-/* This is arbitrary, just noone needed any higher alignment yet */
-#define MAX_ALIGN 4
-
-struct tmio_mmc_host {
-	void __iomem *ctl;
-	unsigned long bus_shift;
-	struct mmc_command      *cmd;
-	struct mmc_request      *mrq;
-	struct mmc_data         *data;
-	struct mmc_host         *mmc;
-	int                     irq;
-	unsigned int		sdio_irq_enabled;
-
-	/* Callbacks for clock / power control */
-	void (*set_pwr)(struct platform_device *host, int state);
-	void (*set_clk_div)(struct platform_device *host, int state);
-
-	/* pio related stuff */
-	struct scatterlist      *sg_ptr;
-	struct scatterlist      *sg_orig;
-	unsigned int            sg_len;
-	unsigned int            sg_off;
-
-	struct platform_device *pdev;
-
-	/* DMA support */
-	struct dma_chan		*chan_rx;
-	struct dma_chan		*chan_tx;
-	struct tasklet_struct	dma_complete;
-	struct tasklet_struct	dma_issue;
-#ifdef CONFIG_TMIO_MMC_DMA
-	u8			bounce_buf[PAGE_CACHE_SIZE] __attribute__((aligned(MAX_ALIGN)));
-	struct scatterlist	bounce_sg;
-#endif
-
-	/* Track lost interrupts */
-	struct delayed_work	delayed_reset_work;
-	spinlock_t		lock;
-	unsigned long		last_req_ts;
-};
-
-static void tmio_check_bounce_buffer(struct tmio_mmc_host *host);
-
-static u16 sd_ctrl_read16(struct tmio_mmc_host *host, int addr)
-{
-	return readw(host->ctl + (addr << host->bus_shift));
-}
-
-static void sd_ctrl_read16_rep(struct tmio_mmc_host *host, int addr,
-		u16 *buf, int count)
-{
-	readsw(host->ctl + (addr << host->bus_shift), buf, count);
-}
-
-static u32 sd_ctrl_read32(struct tmio_mmc_host *host, int addr)
-{
-	return readw(host->ctl + (addr << host->bus_shift)) |
-	       readw(host->ctl + ((addr + 2) << host->bus_shift)) << 16;
-}
-
-static void sd_ctrl_write16(struct tmio_mmc_host *host, int addr, u16 val)
-{
-	writew(val, host->ctl + (addr << host->bus_shift));
-}
-
-static void sd_ctrl_write16_rep(struct tmio_mmc_host *host, int addr,
-		u16 *buf, int count)
-{
-	writesw(host->ctl + (addr << host->bus_shift), buf, count);
-}
-
-static void sd_ctrl_write32(struct tmio_mmc_host *host, int addr, u32 val)
-{
-	writew(val, host->ctl + (addr << host->bus_shift));
-	writew(val >> 16, host->ctl + ((addr + 2) << host->bus_shift));
-}
-
-static void tmio_mmc_init_sg(struct tmio_mmc_host *host, struct mmc_data *data)
-{
-	host->sg_len = data->sg_len;
-	host->sg_ptr = data->sg;
-	host->sg_orig = data->sg;
-	host->sg_off = 0;
-}
-
-static int tmio_mmc_next_sg(struct tmio_mmc_host *host)
-{
-	host->sg_ptr = sg_next(host->sg_ptr);
-	host->sg_off = 0;
-	return --host->sg_len;
-}
-
-static char *tmio_mmc_kmap_atomic(struct scatterlist *sg, unsigned long *flags)
-{
-	local_irq_save(*flags);
-	return kmap_atomic(sg_page(sg), KM_BIO_SRC_IRQ) + sg->offset;
-}
-
-static void tmio_mmc_kunmap_atomic(struct scatterlist *sg, unsigned long *flags, void *virt)
-{
-	kunmap_atomic(virt - sg->offset, KM_BIO_SRC_IRQ);
-	local_irq_restore(*flags);
-}
-
-#ifdef CONFIG_MMC_DEBUG
-
-#define STATUS_TO_TEXT(a, status, i) \
-	do { \
-		if (status & TMIO_STAT_##a) { \
-			if (i++) \
-				printk(" | "); \
-			printk(#a); \
-		} \
-	} while (0)
-
-void pr_debug_status(u32 status)
-{
-	int i = 0;
-	printk(KERN_DEBUG "status: %08x = ", status);
-	STATUS_TO_TEXT(CARD_REMOVE, status, i);
-	STATUS_TO_TEXT(CARD_INSERT, status, i);
-	STATUS_TO_TEXT(SIGSTATE, status, i);
-	STATUS_TO_TEXT(WRPROTECT, status, i);
-	STATUS_TO_TEXT(CARD_REMOVE_A, status, i);
-	STATUS_TO_TEXT(CARD_INSERT_A, status, i);
-	STATUS_TO_TEXT(SIGSTATE_A, status, i);
-	STATUS_TO_TEXT(CMD_IDX_ERR, status, i);
-	STATUS_TO_TEXT(STOPBIT_ERR, status, i);
-	STATUS_TO_TEXT(ILL_FUNC, status, i);
-	STATUS_TO_TEXT(CMD_BUSY, status, i);
-	STATUS_TO_TEXT(CMDRESPEND, status, i);
-	STATUS_TO_TEXT(DATAEND, status, i);
-	STATUS_TO_TEXT(CRCFAIL, status, i);
-	STATUS_TO_TEXT(DATATIMEOUT, status, i);
-	STATUS_TO_TEXT(CMDTIMEOUT, status, i);
-	STATUS_TO_TEXT(RXOVERFLOW, status, i);
-	STATUS_TO_TEXT(TXUNDERRUN, status, i);
-	STATUS_TO_TEXT(RXRDY, status, i);
-	STATUS_TO_TEXT(TXRQ, status, i);
-	STATUS_TO_TEXT(ILL_ACCESS, status, i);
-	printk("\n");
-}
-
-#else
-#define pr_debug_status(s)  do { } while (0)
-#endif
-
-static void tmio_mmc_enable_sdio_irq(struct mmc_host *mmc, int enable)
-{
-	struct tmio_mmc_host *host = mmc_priv(mmc);
-
-	if (enable) {
-		host->sdio_irq_enabled = 1;
-		sd_ctrl_write16(host, CTL_TRANSACTION_CTL, 0x0001);
-		sd_ctrl_write16(host, CTL_SDIO_IRQ_MASK,
-			(TMIO_SDIO_MASK_ALL & ~TMIO_SDIO_STAT_IOIRQ));
-	} else {
-		sd_ctrl_write16(host, CTL_SDIO_IRQ_MASK, TMIO_SDIO_MASK_ALL);
-		sd_ctrl_write16(host, CTL_TRANSACTION_CTL, 0x0000);
-		host->sdio_irq_enabled = 0;
-	}
-}
-
-static void tmio_mmc_set_clock(struct tmio_mmc_host *host, int new_clock)
-{
-	u32 clk = 0, clock;
-
-	if (new_clock) {
-		for (clock = host->mmc->f_min, clk = 0x80000080;
-			new_clock >= (clock<<1); clk >>= 1)
-			clock <<= 1;
-		clk |= 0x100;
-	}
-
-	if (host->set_clk_div)
-		host->set_clk_div(host->pdev, (clk>>22) & 1);
-
-	sd_ctrl_write16(host, CTL_SD_CARD_CLK_CTL, clk & 0x1ff);
-}
-
-static void tmio_mmc_clk_stop(struct tmio_mmc_host *host)
-{
-	struct tmio_mmc_data *pdata = mfd_get_data(host->pdev);
-
-	/*
-	 * Testing on sh-mobile showed that SDIO IRQs are unmasked when
-	 * CTL_CLK_AND_WAIT_CTL gets written, so we have to disable the
-	 * device IRQ here and restore the SDIO IRQ mask before
-	 * re-enabling the device IRQ.
-	 */
-	if (pdata->flags & TMIO_MMC_SDIO_IRQ)
-		disable_irq(host->irq);
-	sd_ctrl_write16(host, CTL_CLK_AND_WAIT_CTL, 0x0000);
-	msleep(10);
-	if (pdata->flags & TMIO_MMC_SDIO_IRQ) {
-		tmio_mmc_enable_sdio_irq(host->mmc, host->sdio_irq_enabled);
-		enable_irq(host->irq);
-	}
-	sd_ctrl_write16(host, CTL_SD_CARD_CLK_CTL, ~0x0100 &
-		sd_ctrl_read16(host, CTL_SD_CARD_CLK_CTL));
-	msleep(10);
-}
-
-static void tmio_mmc_clk_start(struct tmio_mmc_host *host)
-{
-	struct tmio_mmc_data *pdata = mfd_get_data(host->pdev);
-
-	sd_ctrl_write16(host, CTL_SD_CARD_CLK_CTL, 0x0100 |
-		sd_ctrl_read16(host, CTL_SD_CARD_CLK_CTL));
-	msleep(10);
-	/* see comment in tmio_mmc_clk_stop above */
-	if (pdata->flags & TMIO_MMC_SDIO_IRQ)
-		disable_irq(host->irq);
-	sd_ctrl_write16(host, CTL_CLK_AND_WAIT_CTL, 0x0100);
-	msleep(10);
-	if (pdata->flags & TMIO_MMC_SDIO_IRQ) {
-		tmio_mmc_enable_sdio_irq(host->mmc, host->sdio_irq_enabled);
-		enable_irq(host->irq);
-	}
-}
-
-static void reset(struct tmio_mmc_host *host)
-{
-	/* FIXME - should we set stop clock reg here */
-	sd_ctrl_write16(host, CTL_RESET_SD, 0x0000);
-	sd_ctrl_write16(host, CTL_RESET_SDIO, 0x0000);
-	msleep(10);
-	sd_ctrl_write16(host, CTL_RESET_SD, 0x0001);
-	sd_ctrl_write16(host, CTL_RESET_SDIO, 0x0001);
-	msleep(10);
-}
-
-static void tmio_mmc_reset_work(struct work_struct *work)
-{
-	struct tmio_mmc_host *host = container_of(work, struct tmio_mmc_host,
-						  delayed_reset_work.work);
-	struct mmc_request *mrq;
-	unsigned long flags;
-
-	spin_lock_irqsave(&host->lock, flags);
-	mrq = host->mrq;
-
-	/* request already finished */
-	if (!mrq
-	    || time_is_after_jiffies(host->last_req_ts +
-		msecs_to_jiffies(2000))) {
-		spin_unlock_irqrestore(&host->lock, flags);
-		return;
-	}
-
-	dev_warn(&host->pdev->dev,
-		"timeout waiting for hardware interrupt (CMD%u)\n",
-		mrq->cmd->opcode);
-
-	if (host->data)
-		host->data->error = -ETIMEDOUT;
-	else if (host->cmd)
-		host->cmd->error = -ETIMEDOUT;
-	else
-		mrq->cmd->error = -ETIMEDOUT;
-
-	host->cmd = NULL;
-	host->data = NULL;
-	host->mrq = NULL;
-
-	spin_unlock_irqrestore(&host->lock, flags);
-
-	reset(host);
-
-	mmc_request_done(host->mmc, mrq);
-}
-
-static void
-tmio_mmc_finish_request(struct tmio_mmc_host *host)
-{
-	struct mmc_request *mrq = host->mrq;
-
-	if (!mrq)
-		return;
-
-	host->mrq = NULL;
-	host->cmd = NULL;
-	host->data = NULL;
-
-	cancel_delayed_work(&host->delayed_reset_work);
-
-	mmc_request_done(host->mmc, mrq);
-}
-
-/* These are the bitmasks the tmio chip requires to implement the MMC response
- * types. Note that R1 and R6 are the same in this scheme. */
-#define APP_CMD        0x0040
-#define RESP_NONE      0x0300
-#define RESP_R1        0x0400
-#define RESP_R1B       0x0500
-#define RESP_R2        0x0600
-#define RESP_R3        0x0700
-#define DATA_PRESENT   0x0800
-#define TRANSFER_READ  0x1000
-#define TRANSFER_MULTI 0x2000
-#define SECURITY_CMD   0x4000
-
-static int
-tmio_mmc_start_command(struct tmio_mmc_host *host, struct mmc_command *cmd)
-{
-	struct mmc_data *data = host->data;
-	int c = cmd->opcode;
-
-	/* Command 12 is handled by hardware */
-	if (cmd->opcode == 12 && !cmd->arg) {
-		sd_ctrl_write16(host, CTL_STOP_INTERNAL_ACTION, 0x001);
-		return 0;
-	}
-
-	switch (mmc_resp_type(cmd)) {
-	case MMC_RSP_NONE: c |= RESP_NONE; break;
-	case MMC_RSP_R1:   c |= RESP_R1;   break;
-	case MMC_RSP_R1B:  c |= RESP_R1B;  break;
-	case MMC_RSP_R2:   c |= RESP_R2;   break;
-	case MMC_RSP_R3:   c |= RESP_R3;   break;
-	default:
-		pr_debug("Unknown response type %d\n", mmc_resp_type(cmd));
-		return -EINVAL;
-	}
-
-	host->cmd = cmd;
-
-/* FIXME - this seems to be ok commented out but the spec suggest this bit
- *         should be set when issuing app commands.
- *	if(cmd->flags & MMC_FLAG_ACMD)
- *		c |= APP_CMD;
- */
-	if (data) {
-		c |= DATA_PRESENT;
-		if (data->blocks > 1) {
-			sd_ctrl_write16(host, CTL_STOP_INTERNAL_ACTION, 0x100);
-			c |= TRANSFER_MULTI;
-		}
-		if (data->flags & MMC_DATA_READ)
-			c |= TRANSFER_READ;
-	}
-
-	enable_mmc_irqs(host, TMIO_MASK_CMD);
-
-	/* Fire off the command */
-	sd_ctrl_write32(host, CTL_ARG_REG, cmd->arg);
-	sd_ctrl_write16(host, CTL_SD_CMD, c);
-
-	return 0;
-}
-
-/*
- * This chip always returns (at least?) as much data as you ask for.
- * I'm unsure what happens if you ask for less than a block. This should be
- * looked into to ensure that a funny length read doesnt hose the controller.
- */
-static void tmio_mmc_pio_irq(struct tmio_mmc_host *host)
-{
-	struct mmc_data *data = host->data;
-	void *sg_virt;
-	unsigned short *buf;
-	unsigned int count;
-	unsigned long flags;
-
-	if (!data) {
-		pr_debug("Spurious PIO IRQ\n");
-		return;
-	}
-
-	sg_virt = tmio_mmc_kmap_atomic(host->sg_ptr, &flags);
-	buf = (unsigned short *)(sg_virt + host->sg_off);
-
-	count = host->sg_ptr->length - host->sg_off;
-	if (count > data->blksz)
-		count = data->blksz;
-
-	pr_debug("count: %08x offset: %08x flags %08x\n",
-		 count, host->sg_off, data->flags);
-
-	/* Transfer the data */
-	if (data->flags & MMC_DATA_READ)
-		sd_ctrl_read16_rep(host, CTL_SD_DATA_PORT, buf, count >> 1);
-	else
-		sd_ctrl_write16_rep(host, CTL_SD_DATA_PORT, buf, count >> 1);
-
-	host->sg_off += count;
-
-	tmio_mmc_kunmap_atomic(host->sg_ptr, &flags, sg_virt);
-
-	if (host->sg_off == host->sg_ptr->length)
-		tmio_mmc_next_sg(host);
-
-	return;
-}
-
-/* needs to be called with host->lock held */
-static void tmio_mmc_do_data_irq(struct tmio_mmc_host *host)
-{
-	struct mmc_data *data = host->data;
-	struct mmc_command *stop;
-
-	host->data = NULL;
-
-	if (!data) {
-		dev_warn(&host->pdev->dev, "Spurious data end IRQ\n");
-		return;
-	}
-	stop = data->stop;
-
-	/* FIXME - return correct transfer count on errors */
-	if (!data->error)
-		data->bytes_xfered = data->blocks * data->blksz;
-	else
-		data->bytes_xfered = 0;
-
-	pr_debug("Completed data request\n");
-
-	/*
-	 * FIXME: other drivers allow an optional stop command of any given type
-	 *        which we dont do, as the chip can auto generate them.
-	 *        Perhaps we can be smarter about when to use auto CMD12 and
-	 *        only issue the auto request when we know this is the desired
-	 *        stop command, allowing fallback to the stop command the
-	 *        upper layers expect. For now, we do what works.
-	 */
-
-	if (data->flags & MMC_DATA_READ) {
-		if (!host->chan_rx)
-			disable_mmc_irqs(host, TMIO_MASK_READOP);
-		else
-			tmio_check_bounce_buffer(host);
-		dev_dbg(&host->pdev->dev, "Complete Rx request %p\n",
-			host->mrq);
-	} else {
-		if (!host->chan_tx)
-			disable_mmc_irqs(host, TMIO_MASK_WRITEOP);
-		dev_dbg(&host->pdev->dev, "Complete Tx request %p\n",
-			host->mrq);
-	}
-
-	if (stop) {
-		if (stop->opcode == 12 && !stop->arg)
-			sd_ctrl_write16(host, CTL_STOP_INTERNAL_ACTION, 0x000);
-		else
-			BUG();
-	}
-
-	tmio_mmc_finish_request(host);
-}
-
-static void tmio_mmc_data_irq(struct tmio_mmc_host *host)
-{
-	struct mmc_data *data;
-	spin_lock(&host->lock);
-	data = host->data;
-
-	if (!data)
-		goto out;
-
-	if (host->chan_tx && (data->flags & MMC_DATA_WRITE)) {
-		/*
-		 * Has all data been written out yet? Testing on SuperH showed,
-		 * that in most cases the first interrupt comes already with the
-		 * BUSY status bit clear, but on some operations, like mount or
-		 * in the beginning of a write / sync / umount, there is one
-		 * DATAEND interrupt with the BUSY bit set, in this cases
-		 * waiting for one more interrupt fixes the problem.
-		 */
-		if (!(sd_ctrl_read32(host, CTL_STATUS) & TMIO_STAT_CMD_BUSY)) {
-			disable_mmc_irqs(host, TMIO_STAT_DATAEND);
-			tasklet_schedule(&host->dma_complete);
-		}
-	} else if (host->chan_rx && (data->flags & MMC_DATA_READ)) {
-		disable_mmc_irqs(host, TMIO_STAT_DATAEND);
-		tasklet_schedule(&host->dma_complete);
-	} else {
-		tmio_mmc_do_data_irq(host);
-	}
-out:
-	spin_unlock(&host->lock);
-}
-
-static void tmio_mmc_cmd_irq(struct tmio_mmc_host *host,
-	unsigned int stat)
-{
-	struct mmc_command *cmd = host->cmd;
-	int i, addr;
-
-	spin_lock(&host->lock);
-
-	if (!host->cmd) {
-		pr_debug("Spurious CMD irq\n");
-		goto out;
-	}
-
-	host->cmd = NULL;
-
-	/* This controller is sicker than the PXA one. Not only do we need to
-	 * drop the top 8 bits of the first response word, we also need to
-	 * modify the order of the response for short response command types.
-	 */
-
-	for (i = 3, addr = CTL_RESPONSE ; i >= 0 ; i--, addr += 4)
-		cmd->resp[i] = sd_ctrl_read32(host, addr);
-
-	if (cmd->flags &  MMC_RSP_136) {
-		cmd->resp[0] = (cmd->resp[0] << 8) | (cmd->resp[1] >> 24);
-		cmd->resp[1] = (cmd->resp[1] << 8) | (cmd->resp[2] >> 24);
-		cmd->resp[2] = (cmd->resp[2] << 8) | (cmd->resp[3] >> 24);
-		cmd->resp[3] <<= 8;
-	} else if (cmd->flags & MMC_RSP_R3) {
-		cmd->resp[0] = cmd->resp[3];
-	}
-
-	if (stat & TMIO_STAT_CMDTIMEOUT)
-		cmd->error = -ETIMEDOUT;
-	else if (stat & TMIO_STAT_CRCFAIL && cmd->flags & MMC_RSP_CRC)
-		cmd->error = -EILSEQ;
-
-	/* If there is data to handle we enable data IRQs here, and
-	 * we will ultimatley finish the request in the data_end handler.
-	 * If theres no data or we encountered an error, finish now.
-	 */
-	if (host->data && !cmd->error) {
-		if (host->data->flags & MMC_DATA_READ) {
-			if (!host->chan_rx)
-				enable_mmc_irqs(host, TMIO_MASK_READOP);
-		} else {
-			if (!host->chan_tx)
-				enable_mmc_irqs(host, TMIO_MASK_WRITEOP);
-			else
-				tasklet_schedule(&host->dma_issue);
-		}
-	} else {
-		tmio_mmc_finish_request(host);
-	}
-
-out:
-	spin_unlock(&host->lock);
-
-	return;
-}
-
-static irqreturn_t tmio_mmc_irq(int irq, void *devid)
-{
-	struct tmio_mmc_host *host = devid;
-	struct tmio_mmc_data *pdata = mfd_get_data(host->pdev);
-	unsigned int ireg, irq_mask, status;
-	unsigned int sdio_ireg, sdio_irq_mask, sdio_status;
-
-	pr_debug("MMC IRQ begin\n");
-
-	status = sd_ctrl_read32(host, CTL_STATUS);
-	irq_mask = sd_ctrl_read32(host, CTL_IRQ_MASK);
-	ireg = status & TMIO_MASK_IRQ & ~irq_mask;
-
-	sdio_ireg = 0;
-	if (!ireg && pdata->flags & TMIO_MMC_SDIO_IRQ) {
-		sdio_status = sd_ctrl_read16(host, CTL_SDIO_STATUS);
-		sdio_irq_mask = sd_ctrl_read16(host, CTL_SDIO_IRQ_MASK);
-		sdio_ireg = sdio_status & TMIO_SDIO_MASK_ALL & ~sdio_irq_mask;
-
-		sd_ctrl_write16(host, CTL_SDIO_STATUS, sdio_status & ~TMIO_SDIO_MASK_ALL);
-
-		if (sdio_ireg && !host->sdio_irq_enabled) {
-			pr_warning("tmio_mmc: Spurious SDIO IRQ, disabling! 0x%04x 0x%04x 0x%04x\n",
-				   sdio_status, sdio_irq_mask, sdio_ireg);
-			tmio_mmc_enable_sdio_irq(host->mmc, 0);
-			goto out;
-		}
 
-		if (host->mmc->caps & MMC_CAP_SDIO_IRQ &&
-			sdio_ireg & TMIO_SDIO_STAT_IOIRQ)
-			mmc_signal_sdio_irq(host->mmc);
-
-		if (sdio_ireg)
-			goto out;
-	}
-
-	pr_debug_status(status);
-	pr_debug_status(ireg);
-
-	if (!ireg) {
-		disable_mmc_irqs(host, status & ~irq_mask);
-
-		pr_warning("tmio_mmc: Spurious irq, disabling! "
-			"0x%08x 0x%08x 0x%08x\n", status, irq_mask, ireg);
-		pr_debug_status(status);
-
-		goto out;
-	}
-
-	while (ireg) {
-		/* Card insert / remove attempts */
-		if (ireg & (TMIO_STAT_CARD_INSERT | TMIO_STAT_CARD_REMOVE)) {
-			ack_mmc_irqs(host, TMIO_STAT_CARD_INSERT |
-				TMIO_STAT_CARD_REMOVE);
-			mmc_detect_change(host->mmc, msecs_to_jiffies(100));
-		}
-
-		/* CRC and other errors */
-/*		if (ireg & TMIO_STAT_ERR_IRQ)
- *			handled |= tmio_error_irq(host, irq, stat);
- */
-
-		/* Command completion */
-		if (ireg & (TMIO_STAT_CMDRESPEND | TMIO_STAT_CMDTIMEOUT)) {
-			ack_mmc_irqs(host,
-				     TMIO_STAT_CMDRESPEND |
-				     TMIO_STAT_CMDTIMEOUT);
-			tmio_mmc_cmd_irq(host, status);
-		}
-
-		/* Data transfer */
-		if (ireg & (TMIO_STAT_RXRDY | TMIO_STAT_TXRQ)) {
-			ack_mmc_irqs(host, TMIO_STAT_RXRDY | TMIO_STAT_TXRQ);
-			tmio_mmc_pio_irq(host);
-		}
-
-		/* Data transfer completion */
-		if (ireg & TMIO_STAT_DATAEND) {
-			ack_mmc_irqs(host, TMIO_STAT_DATAEND);
-			tmio_mmc_data_irq(host);
-		}
-
-		/* Check status - keep going until we've handled it all */
-		status = sd_ctrl_read32(host, CTL_STATUS);
-		irq_mask = sd_ctrl_read32(host, CTL_IRQ_MASK);
-		ireg = status & TMIO_MASK_IRQ & ~irq_mask;
-
-		pr_debug("Status at end of loop: %08x\n", status);
-		pr_debug_status(status);
-	}
-	pr_debug("MMC IRQ end\n");
-
-out:
-	return IRQ_HANDLED;
-}
-
-#ifdef CONFIG_TMIO_MMC_DMA
-static void tmio_check_bounce_buffer(struct tmio_mmc_host *host)
-{
-	if (host->sg_ptr == &host->bounce_sg) {
-		unsigned long flags;
-		void *sg_vaddr = tmio_mmc_kmap_atomic(host->sg_orig, &flags);
-		memcpy(sg_vaddr, host->bounce_buf, host->bounce_sg.length);
-		tmio_mmc_kunmap_atomic(host->sg_orig, &flags, sg_vaddr);
-	}
-}
-
-static void tmio_mmc_enable_dma(struct tmio_mmc_host *host, bool enable)
-{
-#if defined(CONFIG_SUPERH) || defined(CONFIG_ARCH_SHMOBILE)
-	/* Switch DMA mode on or off - SuperH specific? */
-	sd_ctrl_write16(host, 0xd8, enable ? 2 : 0);
-#endif
-}
-
-static void tmio_dma_complete(void *arg)
-{
-	struct tmio_mmc_host *host = arg;
-
-	dev_dbg(&host->pdev->dev, "Command completed\n");
-
-	if (!host->data)
-		dev_warn(&host->pdev->dev, "NULL data in DMA completion!\n");
-	else
-		enable_mmc_irqs(host, TMIO_STAT_DATAEND);
-}
-
-static void tmio_mmc_start_dma_rx(struct tmio_mmc_host *host)
-{
-	struct scatterlist *sg = host->sg_ptr, *sg_tmp;
-	struct dma_async_tx_descriptor *desc = NULL;
-	struct dma_chan *chan = host->chan_rx;
-	struct tmio_mmc_data *pdata = mfd_get_data(host->pdev);
-	dma_cookie_t cookie;
-	int ret, i;
-	bool aligned = true, multiple = true;
-	unsigned int align = (1 << pdata->dma->alignment_shift) - 1;
-
-	for_each_sg(sg, sg_tmp, host->sg_len, i) {
-		if (sg_tmp->offset & align)
-			aligned = false;
-		if (sg_tmp->length & align) {
-			multiple = false;
-			break;
-		}
-	}
-
-	if ((!aligned && (host->sg_len > 1 || sg->length > PAGE_CACHE_SIZE ||
-			  align >= MAX_ALIGN)) || !multiple) {
-		ret = -EINVAL;
-		goto pio;
-	}
-
-	/* The only sg element can be unaligned, use our bounce buffer then */
-	if (!aligned) {
-		sg_init_one(&host->bounce_sg, host->bounce_buf, sg->length);
-		host->sg_ptr = &host->bounce_sg;
-		sg = host->sg_ptr;
-	}
-
-	ret = dma_map_sg(chan->device->dev, sg, host->sg_len, DMA_FROM_DEVICE);
-	if (ret > 0)
-		desc = chan->device->device_prep_slave_sg(chan, sg, ret,
-			DMA_FROM_DEVICE, DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
-
-	if (desc) {
-		desc->callback = tmio_dma_complete;
-		desc->callback_param = host;
-		cookie = dmaengine_submit(desc);
-		dma_async_issue_pending(chan);
-	}
-	dev_dbg(&host->pdev->dev, "%s(): mapped %d -> %d, cookie %d, rq %p\n",
-		__func__, host->sg_len, ret, cookie, host->mrq);
-
-pio:
-	if (!desc) {
-		/* DMA failed, fall back to PIO */
-		if (ret >= 0)
-			ret = -EIO;
-		host->chan_rx = NULL;
-		dma_release_channel(chan);
-		/* Free the Tx channel too */
-		chan = host->chan_tx;
-		if (chan) {
-			host->chan_tx = NULL;
-			dma_release_channel(chan);
-		}
-		dev_warn(&host->pdev->dev,
-			 "DMA failed: %d, falling back to PIO\n", ret);
-		tmio_mmc_enable_dma(host, false);
-	}
-
-	dev_dbg(&host->pdev->dev, "%s(): desc %p, cookie %d, sg[%d]\n", __func__,
-		desc, cookie, host->sg_len);
-}
-
-static void tmio_mmc_start_dma_tx(struct tmio_mmc_host *host)
-{
-	struct scatterlist *sg = host->sg_ptr, *sg_tmp;
-	struct dma_async_tx_descriptor *desc = NULL;
-	struct dma_chan *chan = host->chan_tx;
-	struct tmio_mmc_data *pdata = mfd_get_data(host->pdev);
-	dma_cookie_t cookie;
-	int ret, i;
-	bool aligned = true, multiple = true;
-	unsigned int align = (1 << pdata->dma->alignment_shift) - 1;
-
-	for_each_sg(sg, sg_tmp, host->sg_len, i) {
-		if (sg_tmp->offset & align)
-			aligned = false;
-		if (sg_tmp->length & align) {
-			multiple = false;
-			break;
-		}
-	}
-
-	if ((!aligned && (host->sg_len > 1 || sg->length > PAGE_CACHE_SIZE ||
-			  align >= MAX_ALIGN)) || !multiple) {
-		ret = -EINVAL;
-		goto pio;
-	}
-
-	/* The only sg element can be unaligned, use our bounce buffer then */
-	if (!aligned) {
-		unsigned long flags;
-		void *sg_vaddr = tmio_mmc_kmap_atomic(sg, &flags);
-		sg_init_one(&host->bounce_sg, host->bounce_buf, sg->length);
-		memcpy(host->bounce_buf, sg_vaddr, host->bounce_sg.length);
-		tmio_mmc_kunmap_atomic(sg, &flags, sg_vaddr);
-		host->sg_ptr = &host->bounce_sg;
-		sg = host->sg_ptr;
-	}
-
-	ret = dma_map_sg(chan->device->dev, sg, host->sg_len, DMA_TO_DEVICE);
-	if (ret > 0)
-		desc = chan->device->device_prep_slave_sg(chan, sg, ret,
-			DMA_TO_DEVICE, DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
-
-	if (desc) {
-		desc->callback = tmio_dma_complete;
-		desc->callback_param = host;
-		cookie = dmaengine_submit(desc);
-	}
-	dev_dbg(&host->pdev->dev, "%s(): mapped %d -> %d, cookie %d, rq %p\n",
-		__func__, host->sg_len, ret, cookie, host->mrq);
-
-pio:
-	if (!desc) {
-		/* DMA failed, fall back to PIO */
-		if (ret >= 0)
-			ret = -EIO;
-		host->chan_tx = NULL;
-		dma_release_channel(chan);
-		/* Free the Rx channel too */
-		chan = host->chan_rx;
-		if (chan) {
-			host->chan_rx = NULL;
-			dma_release_channel(chan);
-		}
-		dev_warn(&host->pdev->dev,
-			 "DMA failed: %d, falling back to PIO\n", ret);
-		tmio_mmc_enable_dma(host, false);
-	}
-
-	dev_dbg(&host->pdev->dev, "%s(): desc %p, cookie %d\n", __func__,
-		desc, cookie);
-}
-
-static void tmio_mmc_start_dma(struct tmio_mmc_host *host,
-			       struct mmc_data *data)
-{
-	if (data->flags & MMC_DATA_READ) {
-		if (host->chan_rx)
-			tmio_mmc_start_dma_rx(host);
-	} else {
-		if (host->chan_tx)
-			tmio_mmc_start_dma_tx(host);
-	}
-}
-
-static void tmio_issue_tasklet_fn(unsigned long priv)
-{
-	struct tmio_mmc_host *host = (struct tmio_mmc_host *)priv;
-	struct dma_chan *chan = host->chan_tx;
-
-	dma_async_issue_pending(chan);
-}
-
-static void tmio_tasklet_fn(unsigned long arg)
-{
-	struct tmio_mmc_host *host = (struct tmio_mmc_host *)arg;
-	unsigned long flags;
-
-	spin_lock_irqsave(&host->lock, flags);
-
-	if (!host->data)
-		goto out;
-
-	if (host->data->flags & MMC_DATA_READ)
-		dma_unmap_sg(host->chan_rx->device->dev,
-			     host->sg_ptr, host->sg_len,
-			     DMA_FROM_DEVICE);
-	else
-		dma_unmap_sg(host->chan_tx->device->dev,
-			     host->sg_ptr, host->sg_len,
-			     DMA_TO_DEVICE);
-
-	tmio_mmc_do_data_irq(host);
-out:
-	spin_unlock_irqrestore(&host->lock, flags);
-}
-
-/* It might be necessary to make filter MFD specific */
-static bool tmio_mmc_filter(struct dma_chan *chan, void *arg)
-{
-	dev_dbg(chan->device->dev, "%s: slave data %p\n", __func__, arg);
-	chan->private = arg;
-	return true;
-}
-
-static void tmio_mmc_request_dma(struct tmio_mmc_host *host,
-				 struct tmio_mmc_data *pdata)
-{
-	/* We can only either use DMA for both Tx and Rx or not use it at all */
-	if (pdata->dma) {
-		dma_cap_mask_t mask;
-
-		dma_cap_zero(mask);
-		dma_cap_set(DMA_SLAVE, mask);
-
-		host->chan_tx = dma_request_channel(mask, tmio_mmc_filter,
-						    pdata->dma->chan_priv_tx);
-		dev_dbg(&host->pdev->dev, "%s: TX: got channel %p\n", __func__,
-			host->chan_tx);
-
-		if (!host->chan_tx)
-			return;
-
-		host->chan_rx = dma_request_channel(mask, tmio_mmc_filter,
-						    pdata->dma->chan_priv_rx);
-		dev_dbg(&host->pdev->dev, "%s: RX: got channel %p\n", __func__,
-			host->chan_rx);
-
-		if (!host->chan_rx) {
-			dma_release_channel(host->chan_tx);
-			host->chan_tx = NULL;
-			return;
-		}
-
-		tasklet_init(&host->dma_complete, tmio_tasklet_fn, (unsigned long)host);
-		tasklet_init(&host->dma_issue, tmio_issue_tasklet_fn, (unsigned long)host);
-
-		tmio_mmc_enable_dma(host, true);
-	}
-}
-
-static void tmio_mmc_release_dma(struct tmio_mmc_host *host)
-{
-	if (host->chan_tx) {
-		struct dma_chan *chan = host->chan_tx;
-		host->chan_tx = NULL;
-		dma_release_channel(chan);
-	}
-	if (host->chan_rx) {
-		struct dma_chan *chan = host->chan_rx;
-		host->chan_rx = NULL;
-		dma_release_channel(chan);
-	}
-}
-#else
-static void tmio_check_bounce_buffer(struct tmio_mmc_host *host)
-{
-}
-
-static void tmio_mmc_start_dma(struct tmio_mmc_host *host,
-			       struct mmc_data *data)
-{
-}
-
-static void tmio_mmc_request_dma(struct tmio_mmc_host *host,
-				 struct tmio_mmc_data *pdata)
-{
-	host->chan_tx = NULL;
-	host->chan_rx = NULL;
-}
-
-static void tmio_mmc_release_dma(struct tmio_mmc_host *host)
-{
-}
-#endif
-
-static int tmio_mmc_start_data(struct tmio_mmc_host *host,
-	struct mmc_data *data)
-{
-	struct tmio_mmc_data *pdata = mfd_get_data(host->pdev);
-
-	pr_debug("setup data transfer: blocksize %08x  nr_blocks %d\n",
-		 data->blksz, data->blocks);
-
-	/* Some hardware cannot perform 2 byte requests in 4 bit mode */
-	if (host->mmc->ios.bus_width == MMC_BUS_WIDTH_4) {
-		int blksz_2bytes = pdata->flags & TMIO_MMC_BLKSZ_2BYTES;
-
-		if (data->blksz < 2 || (data->blksz < 4 && !blksz_2bytes)) {
-			pr_err("%s: %d byte block unsupported in 4 bit mode\n",
-			       mmc_hostname(host->mmc), data->blksz);
-			return -EINVAL;
-		}
-	}
-
-	tmio_mmc_init_sg(host, data);
-	host->data = data;
-
-	/* Set transfer length / blocksize */
-	sd_ctrl_write16(host, CTL_SD_XFER_LEN, data->blksz);
-	sd_ctrl_write16(host, CTL_XFER_BLK_COUNT, data->blocks);
-
-	tmio_mmc_start_dma(host, data);
-
-	return 0;
-}
-
-/* Process requests from the MMC layer */
-static void tmio_mmc_request(struct mmc_host *mmc, struct mmc_request *mrq)
-{
-	struct tmio_mmc_host *host = mmc_priv(mmc);
-	int ret;
-
-	if (host->mrq)
-		pr_debug("request not null\n");
-
-	host->last_req_ts = jiffies;
-	wmb();
-	host->mrq = mrq;
-
-	if (mrq->data) {
-		ret = tmio_mmc_start_data(host, mrq->data);
-		if (ret)
-			goto fail;
-	}
-
-	ret = tmio_mmc_start_command(host, mrq->cmd);
-	if (!ret) {
-		schedule_delayed_work(&host->delayed_reset_work,
-				      msecs_to_jiffies(2000));
-		return;
-	}
-
-fail:
-	host->mrq = NULL;
-	mrq->cmd->error = ret;
-	mmc_request_done(mmc, mrq);
-}
-
-/* Set MMC clock / power.
- * Note: This controller uses a simple divider scheme therefore it cannot
- * run a MMC card at full speed (20MHz). The max clock is 24MHz on SD, but as
- * MMC wont run that fast, it has to be clocked at 12MHz which is the next
- * slowest setting.
- */
-static void tmio_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
-{
-	struct tmio_mmc_host *host = mmc_priv(mmc);
-
-	if (ios->clock)
-		tmio_mmc_set_clock(host, ios->clock);
-
-	/* Power sequence - OFF -> ON -> UP */
-	switch (ios->power_mode) {
-	case MMC_POWER_OFF: /* power down SD bus */
-		if (host->set_pwr)
-			host->set_pwr(host->pdev, 0);
-		tmio_mmc_clk_stop(host);
-		break;
-	case MMC_POWER_ON: /* power up SD bus */
-		if (host->set_pwr)
-			host->set_pwr(host->pdev, 1);
-		break;
-	case MMC_POWER_UP: /* start bus clock */
-		tmio_mmc_clk_start(host);
-		break;
-	}
-
-	switch (ios->bus_width) {
-	case MMC_BUS_WIDTH_1:
-		sd_ctrl_write16(host, CTL_SD_MEM_CARD_OPT, 0x80e0);
-	break;
-	case MMC_BUS_WIDTH_4:
-		sd_ctrl_write16(host, CTL_SD_MEM_CARD_OPT, 0x00e0);
-	break;
-	}
-
-	/* Let things settle. delay taken from winCE driver */
-	udelay(140);
-}
-
-static int tmio_mmc_get_ro(struct mmc_host *mmc)
-{
-	struct tmio_mmc_host *host = mmc_priv(mmc);
-	struct tmio_mmc_data *pdata = mfd_get_data(host->pdev);
-
-	return ((pdata->flags & TMIO_MMC_WRPROTECT_DISABLE) ||
-		(sd_ctrl_read32(host, CTL_STATUS) & TMIO_STAT_WRPROTECT)) ? 0 : 1;
-}
-
-static int tmio_mmc_get_cd(struct mmc_host *mmc)
-{
-	struct tmio_mmc_host *host = mmc_priv(mmc);
-	struct tmio_mmc_data *pdata = mfd_get_data(host->pdev);
-
-	if (!pdata->get_cd)
-		return -ENOSYS;
-	else
-		return pdata->get_cd(host->pdev);
-}
-
-static const struct mmc_host_ops tmio_mmc_ops = {
-	.request	= tmio_mmc_request,
-	.set_ios	= tmio_mmc_set_ios,
-	.get_ro         = tmio_mmc_get_ro,
-	.get_cd		= tmio_mmc_get_cd,
-	.enable_sdio_irq = tmio_mmc_enable_sdio_irq,
-};
+#include "tmio_mmc.h"
 
 #ifdef CONFIG_PM
 static int tmio_mmc_suspend(struct platform_device *dev, pm_message_t state)
@@ -1227,138 +62,54 @@ out:
 #define tmio_mmc_resume NULL
 #endif
 
-static int __devinit tmio_mmc_probe(struct platform_device *dev)
+static int __devinit tmio_mmc_probe(struct platform_device *pdev)
 {
-	const struct mfd_cell *cell = mfd_get_cell(dev);
+	const struct mfd_cell *cell = mfd_get_cell(pdev);
 	struct tmio_mmc_data *pdata;
-	struct resource *res_ctl;
 	struct tmio_mmc_host *host;
-	struct mmc_host *mmc;
 	int ret = -EINVAL;
-	u32 irq_mask = TMIO_MASK_CMD;
 
-	if (dev->num_resources != 2)
+	if (pdev->num_resources != 2)
 		goto out;
 
-	res_ctl = platform_get_resource(dev, IORESOURCE_MEM, 0);
-	if (!res_ctl)
-		goto out;
-
-	pdata = mfd_get_data(dev);
+	pdata = mfd_get_data(pdev);
 	if (!pdata || !pdata->hclk)
 		goto out;
 
-	ret = -ENOMEM;
-
-	mmc = mmc_alloc_host(sizeof(struct tmio_mmc_host), &dev->dev);
-	if (!mmc)
-		goto out;
-
-	host = mmc_priv(mmc);
-	host->mmc = mmc;
-	host->pdev = dev;
-	platform_set_drvdata(dev, mmc);
-
-	host->set_pwr = pdata->set_pwr;
-	host->set_clk_div = pdata->set_clk_div;
-
-	/* SD control register space size is 0x200, 0x400 for bus_shift=1 */
-	host->bus_shift = resource_size(res_ctl) >> 10;
-
-	host->ctl = ioremap(res_ctl->start, resource_size(res_ctl));
-	if (!host->ctl)
-		goto host_free;
-
-	mmc->ops = &tmio_mmc_ops;
-	mmc->caps = MMC_CAP_4_BIT_DATA | pdata->capabilities;
-	mmc->f_max = pdata->hclk;
-	mmc->f_min = mmc->f_max / 512;
-	mmc->max_segs = 32;
-	mmc->max_blk_size = 512;
-	mmc->max_blk_count = (PAGE_CACHE_SIZE / mmc->max_blk_size) *
-		mmc->max_segs;
-	mmc->max_req_size = mmc->max_blk_size * mmc->max_blk_count;
-	mmc->max_seg_size = mmc->max_req_size;
-	if (pdata->ocr_mask)
-		mmc->ocr_avail = pdata->ocr_mask;
-	else
-		mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34;
-
 	/* Tell the MFD core we are ready to be enabled */
 	if (cell->enable) {
-		ret = cell->enable(dev);
+		ret = cell->enable(pdev);
 		if (ret)
-			goto unmap_ctl;
+			goto out;
 	}
 
-	tmio_mmc_clk_stop(host);
-	reset(host);
-
-	ret = platform_get_irq(dev, 0);
-	if (ret >= 0)
-		host->irq = ret;
-	else
-		goto cell_disable;
-
-	disable_mmc_irqs(host, TMIO_MASK_ALL);
-	if (pdata->flags & TMIO_MMC_SDIO_IRQ)
-		tmio_mmc_enable_sdio_irq(mmc, 0);
-
-	ret = request_irq(host->irq, tmio_mmc_irq, IRQF_DISABLED |
-		IRQF_TRIGGER_FALLING, dev_name(&dev->dev), host);
+	ret = tmio_mmc_host_probe(&host, pdev, pdata);
 	if (ret)
 		goto cell_disable;
 
-	spin_lock_init(&host->lock);
-
-	/* Init delayed work for request timeouts */
-	INIT_DELAYED_WORK(&host->delayed_reset_work, tmio_mmc_reset_work);
-
-	/* See if we also get DMA */
-	tmio_mmc_request_dma(host, pdata);
-
-	mmc_add_host(mmc);
-
 	pr_info("%s at 0x%08lx irq %d\n", mmc_hostname(host->mmc),
 		(unsigned long)host->ctl, host->irq);
 
-	/* Unmask the IRQs we want to know about */
-	if (!host->chan_rx)
-		irq_mask |= TMIO_MASK_READOP;
-	if (!host->chan_tx)
-		irq_mask |= TMIO_MASK_WRITEOP;
-	enable_mmc_irqs(host, irq_mask);
-
 	return 0;
 
 cell_disable:
 	if (cell->disable)
-		cell->disable(dev);
-unmap_ctl:
-	iounmap(host->ctl);
-host_free:
-	mmc_free_host(mmc);
+		cell->disable(pdev);
 out:
 	return ret;
 }
 
-static int __devexit tmio_mmc_remove(struct platform_device *dev)
+static int __devexit tmio_mmc_remove(struct platform_device *pdev)
 {
-	const struct mfd_cell *cell = mfd_get_cell(dev);
-	struct mmc_host *mmc = platform_get_drvdata(dev);
+	const struct mfd_cell *cell = mfd_get_cell(pdev);
+	struct mmc_host *mmc = platform_get_drvdata(pdev);
 
-	platform_set_drvdata(dev, NULL);
+	platform_set_drvdata(pdev, NULL);
 
 	if (mmc) {
-		struct tmio_mmc_host *host = mmc_priv(mmc);
-		mmc_remove_host(mmc);
-		cancel_delayed_work_sync(&host->delayed_reset_work);
-		tmio_mmc_release_dma(host);
-		free_irq(host->irq, host);
+		tmio_mmc_host_remove(mmc_priv(mmc));
 		if (cell->disable)
-			cell->disable(dev);
-		iounmap(host->ctl);
-		mmc_free_host(mmc);
+			cell->disable(pdev);
 	}
 
 	return 0;
diff --git a/drivers/mmc/host/tmio_mmc.h b/drivers/mmc/host/tmio_mmc.h
new file mode 100644
index 000000000000..099ed49a259b
--- /dev/null
+++ b/drivers/mmc/host/tmio_mmc.h
@@ -0,0 +1,123 @@
+/*
+ * linux/drivers/mmc/host/tmio_mmc.h
+ *
+ * Copyright (C) 2007 Ian Molton
+ * Copyright (C) 2004 Ian Molton
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Driver for the MMC / SD / SDIO cell found in:
+ *
+ * TC6393XB TC6391XB TC6387XB T7L66XB ASIC3
+ */
+
+#ifndef TMIO_MMC_H
+#define TMIO_MMC_H
+
+#include <linux/highmem.h>
+#include <linux/mmc/tmio.h>
+#include <linux/pagemap.h>
+
+/* Definitions for values the CTRL_SDIO_STATUS register can take. */
+#define TMIO_SDIO_STAT_IOIRQ	0x0001
+#define TMIO_SDIO_STAT_EXPUB52	0x4000
+#define TMIO_SDIO_STAT_EXWT	0x8000
+#define TMIO_SDIO_MASK_ALL	0xc007
+
+/* Define some IRQ masks */
+/* This is the mask used at reset by the chip */
+#define TMIO_MASK_ALL           0x837f031d
+#define TMIO_MASK_READOP  (TMIO_STAT_RXRDY | TMIO_STAT_DATAEND)
+#define TMIO_MASK_WRITEOP (TMIO_STAT_TXRQ | TMIO_STAT_DATAEND)
+#define TMIO_MASK_CMD     (TMIO_STAT_CMDRESPEND | TMIO_STAT_CMDTIMEOUT | \
+		TMIO_STAT_CARD_REMOVE | TMIO_STAT_CARD_INSERT)
+#define TMIO_MASK_IRQ     (TMIO_MASK_READOP | TMIO_MASK_WRITEOP | TMIO_MASK_CMD)
+
+struct tmio_mmc_data;
+
+struct tmio_mmc_host {
+	void __iomem *ctl;
+	unsigned long bus_shift;
+	struct mmc_command      *cmd;
+	struct mmc_request      *mrq;
+	struct mmc_data         *data;
+	struct mmc_host         *mmc;
+	int                     irq;
+	unsigned int		sdio_irq_enabled;
+
+	/* Callbacks for clock / power control */
+	void (*set_pwr)(struct platform_device *host, int state);
+	void (*set_clk_div)(struct platform_device *host, int state);
+
+	/* pio related stuff */
+	struct scatterlist      *sg_ptr;
+	struct scatterlist      *sg_orig;
+	unsigned int            sg_len;
+	unsigned int            sg_off;
+
+	struct platform_device *pdev;
+	struct tmio_mmc_data *pdata;
+
+	/* DMA support */
+	bool			force_pio;
+	struct dma_chan		*chan_rx;
+	struct dma_chan		*chan_tx;
+	struct tasklet_struct	dma_complete;
+	struct tasklet_struct	dma_issue;
+	struct scatterlist	bounce_sg;
+	u8			*bounce_buf;
+
+	/* Track lost interrupts */
+	struct delayed_work	delayed_reset_work;
+	spinlock_t		lock;
+	unsigned long		last_req_ts;
+};
+
+int tmio_mmc_host_probe(struct tmio_mmc_host **host,
+			struct platform_device *pdev,
+			struct tmio_mmc_data *pdata);
+void tmio_mmc_host_remove(struct tmio_mmc_host *host);
+void tmio_mmc_do_data_irq(struct tmio_mmc_host *host);
+
+void tmio_mmc_enable_mmc_irqs(struct tmio_mmc_host *host, u32 i);
+void tmio_mmc_disable_mmc_irqs(struct tmio_mmc_host *host, u32 i);
+
+static inline char *tmio_mmc_kmap_atomic(struct scatterlist *sg,
+					 unsigned long *flags)
+{
+	local_irq_save(*flags);
+	return kmap_atomic(sg_page(sg), KM_BIO_SRC_IRQ) + sg->offset;
+}
+
+static inline void tmio_mmc_kunmap_atomic(struct scatterlist *sg,
+					  unsigned long *flags, void *virt)
+{
+	kunmap_atomic(virt - sg->offset, KM_BIO_SRC_IRQ);
+	local_irq_restore(*flags);
+}
+
+#if defined(CONFIG_MMC_SDHI) || defined(CONFIG_MMC_SDHI_MODULE)
+void tmio_mmc_start_dma(struct tmio_mmc_host *host, struct mmc_data *data);
+void tmio_mmc_request_dma(struct tmio_mmc_host *host, struct tmio_mmc_data *pdata);
+void tmio_mmc_release_dma(struct tmio_mmc_host *host);
+#else
+static inline void tmio_mmc_start_dma(struct tmio_mmc_host *host,
+			       struct mmc_data *data)
+{
+}
+
+static inline void tmio_mmc_request_dma(struct tmio_mmc_host *host,
+				 struct tmio_mmc_data *pdata)
+{
+	host->chan_tx = NULL;
+	host->chan_rx = NULL;
+}
+
+static inline void tmio_mmc_release_dma(struct tmio_mmc_host *host)
+{
+}
+#endif
+
+#endif
diff --git a/drivers/mmc/host/tmio_mmc_dma.c b/drivers/mmc/host/tmio_mmc_dma.c
new file mode 100644
index 000000000000..d3de74ab633e
--- /dev/null
+++ b/drivers/mmc/host/tmio_mmc_dma.c
@@ -0,0 +1,317 @@
+/*
+ * linux/drivers/mmc/tmio_mmc_dma.c
+ *
+ * Copyright (C) 2010-2011 Guennadi Liakhovetski
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * DMA function for TMIO MMC implementations
+ */
+
+#include <linux/device.h>
+#include <linux/dmaengine.h>
+#include <linux/mfd/tmio.h>
+#include <linux/mmc/host.h>
+#include <linux/mmc/tmio.h>
+#include <linux/pagemap.h>
+#include <linux/scatterlist.h>
+
+#include "tmio_mmc.h"
+
+#define TMIO_MMC_MIN_DMA_LEN 8
+
+static void tmio_mmc_enable_dma(struct tmio_mmc_host *host, bool enable)
+{
+#if defined(CONFIG_SUPERH) || defined(CONFIG_ARCH_SHMOBILE)
+	/* Switch DMA mode on or off - SuperH specific? */
+	writew(enable ? 2 : 0, host->ctl + (0xd8 << host->bus_shift));
+#endif
+}
+
+static void tmio_mmc_start_dma_rx(struct tmio_mmc_host *host)
+{
+	struct scatterlist *sg = host->sg_ptr, *sg_tmp;
+	struct dma_async_tx_descriptor *desc = NULL;
+	struct dma_chan *chan = host->chan_rx;
+	struct tmio_mmc_data *pdata = host->pdata;
+	dma_cookie_t cookie;
+	int ret, i;
+	bool aligned = true, multiple = true;
+	unsigned int align = (1 << pdata->dma->alignment_shift) - 1;
+
+	for_each_sg(sg, sg_tmp, host->sg_len, i) {
+		if (sg_tmp->offset & align)
+			aligned = false;
+		if (sg_tmp->length & align) {
+			multiple = false;
+			break;
+		}
+	}
+
+	if ((!aligned && (host->sg_len > 1 || sg->length > PAGE_CACHE_SIZE ||
+			  (align & PAGE_MASK))) || !multiple) {
+		ret = -EINVAL;
+		goto pio;
+	}
+
+	if (sg->length < TMIO_MMC_MIN_DMA_LEN) {
+		host->force_pio = true;
+		return;
+	}
+
+	tmio_mmc_disable_mmc_irqs(host, TMIO_STAT_RXRDY);
+
+	/* The only sg element can be unaligned, use our bounce buffer then */
+	if (!aligned) {
+		sg_init_one(&host->bounce_sg, host->bounce_buf, sg->length);
+		host->sg_ptr = &host->bounce_sg;
+		sg = host->sg_ptr;
+	}
+
+	ret = dma_map_sg(chan->device->dev, sg, host->sg_len, DMA_FROM_DEVICE);
+	if (ret > 0)
+		desc = chan->device->device_prep_slave_sg(chan, sg, ret,
+			DMA_FROM_DEVICE, DMA_CTRL_ACK);
+
+	if (desc) {
+		cookie = dmaengine_submit(desc);
+		if (cookie < 0) {
+			desc = NULL;
+			ret = cookie;
+		}
+	}
+	dev_dbg(&host->pdev->dev, "%s(): mapped %d -> %d, cookie %d, rq %p\n",
+		__func__, host->sg_len, ret, cookie, host->mrq);
+
+pio:
+	if (!desc) {
+		/* DMA failed, fall back to PIO */
+		if (ret >= 0)
+			ret = -EIO;
+		host->chan_rx = NULL;
+		dma_release_channel(chan);
+		/* Free the Tx channel too */
+		chan = host->chan_tx;
+		if (chan) {
+			host->chan_tx = NULL;
+			dma_release_channel(chan);
+		}
+		dev_warn(&host->pdev->dev,
+			 "DMA failed: %d, falling back to PIO\n", ret);
+		tmio_mmc_enable_dma(host, false);
+	}
+
+	dev_dbg(&host->pdev->dev, "%s(): desc %p, cookie %d, sg[%d]\n", __func__,
+		desc, cookie, host->sg_len);
+}
+
+static void tmio_mmc_start_dma_tx(struct tmio_mmc_host *host)
+{
+	struct scatterlist *sg = host->sg_ptr, *sg_tmp;
+	struct dma_async_tx_descriptor *desc = NULL;
+	struct dma_chan *chan = host->chan_tx;
+	struct tmio_mmc_data *pdata = host->pdata;
+	dma_cookie_t cookie;
+	int ret, i;
+	bool aligned = true, multiple = true;
+	unsigned int align = (1 << pdata->dma->alignment_shift) - 1;
+
+	for_each_sg(sg, sg_tmp, host->sg_len, i) {
+		if (sg_tmp->offset & align)
+			aligned = false;
+		if (sg_tmp->length & align) {
+			multiple = false;
+			break;
+		}
+	}
+
+	if ((!aligned && (host->sg_len > 1 || sg->length > PAGE_CACHE_SIZE ||
+			  (align & PAGE_MASK))) || !multiple) {
+		ret = -EINVAL;
+		goto pio;
+	}
+
+	if (sg->length < TMIO_MMC_MIN_DMA_LEN) {
+		host->force_pio = true;
+		return;
+	}
+
+	tmio_mmc_disable_mmc_irqs(host, TMIO_STAT_TXRQ);
+
+	/* The only sg element can be unaligned, use our bounce buffer then */
+	if (!aligned) {
+		unsigned long flags;
+		void *sg_vaddr = tmio_mmc_kmap_atomic(sg, &flags);
+		sg_init_one(&host->bounce_sg, host->bounce_buf, sg->length);
+		memcpy(host->bounce_buf, sg_vaddr, host->bounce_sg.length);
+		tmio_mmc_kunmap_atomic(sg, &flags, sg_vaddr);
+		host->sg_ptr = &host->bounce_sg;
+		sg = host->sg_ptr;
+	}
+
+	ret = dma_map_sg(chan->device->dev, sg, host->sg_len, DMA_TO_DEVICE);
+	if (ret > 0)
+		desc = chan->device->device_prep_slave_sg(chan, sg, ret,
+			DMA_TO_DEVICE, DMA_CTRL_ACK);
+
+	if (desc) {
+		cookie = dmaengine_submit(desc);
+		if (cookie < 0) {
+			desc = NULL;
+			ret = cookie;
+		}
+	}
+	dev_dbg(&host->pdev->dev, "%s(): mapped %d -> %d, cookie %d, rq %p\n",
+		__func__, host->sg_len, ret, cookie, host->mrq);
+
+pio:
+	if (!desc) {
+		/* DMA failed, fall back to PIO */
+		if (ret >= 0)
+			ret = -EIO;
+		host->chan_tx = NULL;
+		dma_release_channel(chan);
+		/* Free the Rx channel too */
+		chan = host->chan_rx;
+		if (chan) {
+			host->chan_rx = NULL;
+			dma_release_channel(chan);
+		}
+		dev_warn(&host->pdev->dev,
+			 "DMA failed: %d, falling back to PIO\n", ret);
+		tmio_mmc_enable_dma(host, false);
+	}
+
+	dev_dbg(&host->pdev->dev, "%s(): desc %p, cookie %d\n", __func__,
+		desc, cookie);
+}
+
+void tmio_mmc_start_dma(struct tmio_mmc_host *host,
+			       struct mmc_data *data)
+{
+	if (data->flags & MMC_DATA_READ) {
+		if (host->chan_rx)
+			tmio_mmc_start_dma_rx(host);
+	} else {
+		if (host->chan_tx)
+			tmio_mmc_start_dma_tx(host);
+	}
+}
+
+static void tmio_mmc_issue_tasklet_fn(unsigned long priv)
+{
+	struct tmio_mmc_host *host = (struct tmio_mmc_host *)priv;
+	struct dma_chan *chan = NULL;
+
+	spin_lock_irq(&host->lock);
+
+	if (host && host->data) {
+		if (host->data->flags & MMC_DATA_READ)
+			chan = host->chan_rx;
+		else
+			chan = host->chan_tx;
+	}
+
+	spin_unlock_irq(&host->lock);
+
+	tmio_mmc_enable_mmc_irqs(host, TMIO_STAT_DATAEND);
+
+	if (chan)
+		dma_async_issue_pending(chan);
+}
+
+static void tmio_mmc_tasklet_fn(unsigned long arg)
+{
+	struct tmio_mmc_host *host = (struct tmio_mmc_host *)arg;
+
+	spin_lock_irq(&host->lock);
+
+	if (!host->data)
+		goto out;
+
+	if (host->data->flags & MMC_DATA_READ)
+		dma_unmap_sg(host->chan_rx->device->dev,
+			     host->sg_ptr, host->sg_len,
+			     DMA_FROM_DEVICE);
+	else
+		dma_unmap_sg(host->chan_tx->device->dev,
+			     host->sg_ptr, host->sg_len,
+			     DMA_TO_DEVICE);
+
+	tmio_mmc_do_data_irq(host);
+out:
+	spin_unlock_irq(&host->lock);
+}
+
+/* It might be necessary to make filter MFD specific */
+static bool tmio_mmc_filter(struct dma_chan *chan, void *arg)
+{
+	dev_dbg(chan->device->dev, "%s: slave data %p\n", __func__, arg);
+	chan->private = arg;
+	return true;
+}
+
+void tmio_mmc_request_dma(struct tmio_mmc_host *host, struct tmio_mmc_data *pdata)
+{
+	/* We can only either use DMA for both Tx and Rx or not use it at all */
+	if (pdata->dma) {
+		dma_cap_mask_t mask;
+
+		dma_cap_zero(mask);
+		dma_cap_set(DMA_SLAVE, mask);
+
+		host->chan_tx = dma_request_channel(mask, tmio_mmc_filter,
+						    pdata->dma->chan_priv_tx);
+		dev_dbg(&host->pdev->dev, "%s: TX: got channel %p\n", __func__,
+			host->chan_tx);
+
+		if (!host->chan_tx)
+			return;
+
+		host->chan_rx = dma_request_channel(mask, tmio_mmc_filter,
+						    pdata->dma->chan_priv_rx);
+		dev_dbg(&host->pdev->dev, "%s: RX: got channel %p\n", __func__,
+			host->chan_rx);
+
+		if (!host->chan_rx)
+			goto ereqrx;
+
+		host->bounce_buf = (u8 *)__get_free_page(GFP_KERNEL | GFP_DMA);
+		if (!host->bounce_buf)
+			goto ebouncebuf;
+
+		tasklet_init(&host->dma_complete, tmio_mmc_tasklet_fn, (unsigned long)host);
+		tasklet_init(&host->dma_issue, tmio_mmc_issue_tasklet_fn, (unsigned long)host);
+
+		tmio_mmc_enable_dma(host, true);
+
+		return;
+ebouncebuf:
+		dma_release_channel(host->chan_rx);
+		host->chan_rx = NULL;
+ereqrx:
+		dma_release_channel(host->chan_tx);
+		host->chan_tx = NULL;
+		return;
+	}
+}
+
+void tmio_mmc_release_dma(struct tmio_mmc_host *host)
+{
+	if (host->chan_tx) {
+		struct dma_chan *chan = host->chan_tx;
+		host->chan_tx = NULL;
+		dma_release_channel(chan);
+	}
+	if (host->chan_rx) {
+		struct dma_chan *chan = host->chan_rx;
+		host->chan_rx = NULL;
+		dma_release_channel(chan);
+	}
+	if (host->bounce_buf) {
+		free_pages((unsigned long)host->bounce_buf, 0);
+		host->bounce_buf = NULL;
+	}
+}
diff --git a/drivers/mmc/host/tmio_mmc_pio.c b/drivers/mmc/host/tmio_mmc_pio.c
new file mode 100644
index 000000000000..62d37de6de76
--- /dev/null
+++ b/drivers/mmc/host/tmio_mmc_pio.c
@@ -0,0 +1,897 @@
+/*
+ * linux/drivers/mmc/host/tmio_mmc_pio.c
+ *
+ * Copyright (C) 2011 Guennadi Liakhovetski
+ * Copyright (C) 2007 Ian Molton
+ * Copyright (C) 2004 Ian Molton
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Driver for the MMC / SD / SDIO IP found in:
+ *
+ * TC6393XB, TC6391XB, TC6387XB, T7L66XB, ASIC3, SH-Mobile SoCs
+ *
+ * This driver draws mainly on scattered spec sheets, Reverse engineering
+ * of the toshiba e800  SD driver and some parts of the 2.4 ASIC3 driver (4 bit
+ * support). (Further 4 bit support from a later datasheet).
+ *
+ * TODO:
+ *   Investigate using a workqueue for PIO transfers
+ *   Eliminate FIXMEs
+ *   SDIO support
+ *   Better Power management
+ *   Handle MMC errors better
+ *   double buffer support
+ *
+ */
+
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <linux/highmem.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/irq.h>
+#include <linux/mfd/tmio.h>
+#include <linux/mmc/host.h>
+#include <linux/mmc/tmio.h>
+#include <linux/module.h>
+#include <linux/pagemap.h>
+#include <linux/platform_device.h>
+#include <linux/scatterlist.h>
+#include <linux/workqueue.h>
+#include <linux/spinlock.h>
+
+#include "tmio_mmc.h"
+
+static u16 sd_ctrl_read16(struct tmio_mmc_host *host, int addr)
+{
+	return readw(host->ctl + (addr << host->bus_shift));
+}
+
+static void sd_ctrl_read16_rep(struct tmio_mmc_host *host, int addr,
+		u16 *buf, int count)
+{
+	readsw(host->ctl + (addr << host->bus_shift), buf, count);
+}
+
+static u32 sd_ctrl_read32(struct tmio_mmc_host *host, int addr)
+{
+	return readw(host->ctl + (addr << host->bus_shift)) |
+	       readw(host->ctl + ((addr + 2) << host->bus_shift)) << 16;
+}
+
+static void sd_ctrl_write16(struct tmio_mmc_host *host, int addr, u16 val)
+{
+	writew(val, host->ctl + (addr << host->bus_shift));
+}
+
+static void sd_ctrl_write16_rep(struct tmio_mmc_host *host, int addr,
+		u16 *buf, int count)
+{
+	writesw(host->ctl + (addr << host->bus_shift), buf, count);
+}
+
+static void sd_ctrl_write32(struct tmio_mmc_host *host, int addr, u32 val)
+{
+	writew(val, host->ctl + (addr << host->bus_shift));
+	writew(val >> 16, host->ctl + ((addr + 2) << host->bus_shift));
+}
+
+void tmio_mmc_enable_mmc_irqs(struct tmio_mmc_host *host, u32 i)
+{
+	u32 mask = sd_ctrl_read32(host, CTL_IRQ_MASK) & ~(i & TMIO_MASK_IRQ);
+	sd_ctrl_write32(host, CTL_IRQ_MASK, mask);
+}
+
+void tmio_mmc_disable_mmc_irqs(struct tmio_mmc_host *host, u32 i)
+{
+	u32 mask = sd_ctrl_read32(host, CTL_IRQ_MASK) | (i & TMIO_MASK_IRQ);
+	sd_ctrl_write32(host, CTL_IRQ_MASK, mask);
+}
+
+static void tmio_mmc_ack_mmc_irqs(struct tmio_mmc_host *host, u32 i)
+{
+	sd_ctrl_write32(host, CTL_STATUS, ~i);
+}
+
+static void tmio_mmc_init_sg(struct tmio_mmc_host *host, struct mmc_data *data)
+{
+	host->sg_len = data->sg_len;
+	host->sg_ptr = data->sg;
+	host->sg_orig = data->sg;
+	host->sg_off = 0;
+}
+
+static int tmio_mmc_next_sg(struct tmio_mmc_host *host)
+{
+	host->sg_ptr = sg_next(host->sg_ptr);
+	host->sg_off = 0;
+	return --host->sg_len;
+}
+
+#ifdef CONFIG_MMC_DEBUG
+
+#define STATUS_TO_TEXT(a, status, i) \
+	do { \
+		if (status & TMIO_STAT_##a) { \
+			if (i++) \
+				printk(" | "); \
+			printk(#a); \
+		} \
+	} while (0)
+
+static void pr_debug_status(u32 status)
+{
+	int i = 0;
+	printk(KERN_DEBUG "status: %08x = ", status);
+	STATUS_TO_TEXT(CARD_REMOVE, status, i);
+	STATUS_TO_TEXT(CARD_INSERT, status, i);
+	STATUS_TO_TEXT(SIGSTATE, status, i);
+	STATUS_TO_TEXT(WRPROTECT, status, i);
+	STATUS_TO_TEXT(CARD_REMOVE_A, status, i);
+	STATUS_TO_TEXT(CARD_INSERT_A, status, i);
+	STATUS_TO_TEXT(SIGSTATE_A, status, i);
+	STATUS_TO_TEXT(CMD_IDX_ERR, status, i);
+	STATUS_TO_TEXT(STOPBIT_ERR, status, i);
+	STATUS_TO_TEXT(ILL_FUNC, status, i);
+	STATUS_TO_TEXT(CMD_BUSY, status, i);
+	STATUS_TO_TEXT(CMDRESPEND, status, i);
+	STATUS_TO_TEXT(DATAEND, status, i);
+	STATUS_TO_TEXT(CRCFAIL, status, i);
+	STATUS_TO_TEXT(DATATIMEOUT, status, i);
+	STATUS_TO_TEXT(CMDTIMEOUT, status, i);
+	STATUS_TO_TEXT(RXOVERFLOW, status, i);
+	STATUS_TO_TEXT(TXUNDERRUN, status, i);
+	STATUS_TO_TEXT(RXRDY, status, i);
+	STATUS_TO_TEXT(TXRQ, status, i);
+	STATUS_TO_TEXT(ILL_ACCESS, status, i);
+	printk("\n");
+}
+
+#else
+#define pr_debug_status(s)  do { } while (0)
+#endif
+
+static void tmio_mmc_enable_sdio_irq(struct mmc_host *mmc, int enable)
+{
+	struct tmio_mmc_host *host = mmc_priv(mmc);
+
+	if (enable) {
+		host->sdio_irq_enabled = 1;
+		sd_ctrl_write16(host, CTL_TRANSACTION_CTL, 0x0001);
+		sd_ctrl_write16(host, CTL_SDIO_IRQ_MASK,
+			(TMIO_SDIO_MASK_ALL & ~TMIO_SDIO_STAT_IOIRQ));
+	} else {
+		sd_ctrl_write16(host, CTL_SDIO_IRQ_MASK, TMIO_SDIO_MASK_ALL);
+		sd_ctrl_write16(host, CTL_TRANSACTION_CTL, 0x0000);
+		host->sdio_irq_enabled = 0;
+	}
+}
+
+static void tmio_mmc_set_clock(struct tmio_mmc_host *host, int new_clock)
+{
+	u32 clk = 0, clock;
+
+	if (new_clock) {
+		for (clock = host->mmc->f_min, clk = 0x80000080;
+			new_clock >= (clock<<1); clk >>= 1)
+			clock <<= 1;
+		clk |= 0x100;
+	}
+
+	if (host->set_clk_div)
+		host->set_clk_div(host->pdev, (clk>>22) & 1);
+
+	sd_ctrl_write16(host, CTL_SD_CARD_CLK_CTL, clk & 0x1ff);
+}
+
+static void tmio_mmc_clk_stop(struct tmio_mmc_host *host)
+{
+	struct resource *res = platform_get_resource(host->pdev, IORESOURCE_MEM, 0);
+
+	/* implicit BUG_ON(!res) */
+	if (resource_size(res) > 0x100) {
+		sd_ctrl_write16(host, CTL_CLK_AND_WAIT_CTL, 0x0000);
+		msleep(10);
+	}
+
+	sd_ctrl_write16(host, CTL_SD_CARD_CLK_CTL, ~0x0100 &
+		sd_ctrl_read16(host, CTL_SD_CARD_CLK_CTL));
+	msleep(10);
+}
+
+static void tmio_mmc_clk_start(struct tmio_mmc_host *host)
+{
+	struct resource *res = platform_get_resource(host->pdev, IORESOURCE_MEM, 0);
+
+	sd_ctrl_write16(host, CTL_SD_CARD_CLK_CTL, 0x0100 |
+		sd_ctrl_read16(host, CTL_SD_CARD_CLK_CTL));
+	msleep(10);
+
+	/* implicit BUG_ON(!res) */
+	if (resource_size(res) > 0x100) {
+		sd_ctrl_write16(host, CTL_CLK_AND_WAIT_CTL, 0x0100);
+		msleep(10);
+	}
+}
+
+static void tmio_mmc_reset(struct tmio_mmc_host *host)
+{
+	struct resource *res = platform_get_resource(host->pdev, IORESOURCE_MEM, 0);
+
+	/* FIXME - should we set stop clock reg here */
+	sd_ctrl_write16(host, CTL_RESET_SD, 0x0000);
+	/* implicit BUG_ON(!res) */
+	if (resource_size(res) > 0x100)
+		sd_ctrl_write16(host, CTL_RESET_SDIO, 0x0000);
+	msleep(10);
+	sd_ctrl_write16(host, CTL_RESET_SD, 0x0001);
+	if (resource_size(res) > 0x100)
+		sd_ctrl_write16(host, CTL_RESET_SDIO, 0x0001);
+	msleep(10);
+}
+
+static void tmio_mmc_reset_work(struct work_struct *work)
+{
+	struct tmio_mmc_host *host = container_of(work, struct tmio_mmc_host,
+						  delayed_reset_work.work);
+	struct mmc_request *mrq;
+	unsigned long flags;
+
+	spin_lock_irqsave(&host->lock, flags);
+	mrq = host->mrq;
+
+	/* request already finished */
+	if (!mrq
+	    || time_is_after_jiffies(host->last_req_ts +
+		msecs_to_jiffies(2000))) {
+		spin_unlock_irqrestore(&host->lock, flags);
+		return;
+	}
+
+	dev_warn(&host->pdev->dev,
+		"timeout waiting for hardware interrupt (CMD%u)\n",
+		mrq->cmd->opcode);
+
+	if (host->data)
+		host->data->error = -ETIMEDOUT;
+	else if (host->cmd)
+		host->cmd->error = -ETIMEDOUT;
+	else
+		mrq->cmd->error = -ETIMEDOUT;
+
+	host->cmd = NULL;
+	host->data = NULL;
+	host->mrq = NULL;
+	host->force_pio = false;
+
+	spin_unlock_irqrestore(&host->lock, flags);
+
+	tmio_mmc_reset(host);
+
+	mmc_request_done(host->mmc, mrq);
+}
+
+static void tmio_mmc_finish_request(struct tmio_mmc_host *host)
+{
+	struct mmc_request *mrq = host->mrq;
+
+	if (!mrq)
+		return;
+
+	host->mrq = NULL;
+	host->cmd = NULL;
+	host->data = NULL;
+	host->force_pio = false;
+
+	cancel_delayed_work(&host->delayed_reset_work);
+
+	mmc_request_done(host->mmc, mrq);
+}
+
+/* These are the bitmasks the tmio chip requires to implement the MMC response
+ * types. Note that R1 and R6 are the same in this scheme. */
+#define APP_CMD        0x0040
+#define RESP_NONE      0x0300
+#define RESP_R1        0x0400
+#define RESP_R1B       0x0500
+#define RESP_R2        0x0600
+#define RESP_R3        0x0700
+#define DATA_PRESENT   0x0800
+#define TRANSFER_READ  0x1000
+#define TRANSFER_MULTI 0x2000
+#define SECURITY_CMD   0x4000
+
+static int tmio_mmc_start_command(struct tmio_mmc_host *host, struct mmc_command *cmd)
+{
+	struct mmc_data *data = host->data;
+	int c = cmd->opcode;
+
+	/* Command 12 is handled by hardware */
+	if (cmd->opcode == 12 && !cmd->arg) {
+		sd_ctrl_write16(host, CTL_STOP_INTERNAL_ACTION, 0x001);
+		return 0;
+	}
+
+	switch (mmc_resp_type(cmd)) {
+	case MMC_RSP_NONE: c |= RESP_NONE; break;
+	case MMC_RSP_R1:   c |= RESP_R1;   break;
+	case MMC_RSP_R1B:  c |= RESP_R1B;  break;
+	case MMC_RSP_R2:   c |= RESP_R2;   break;
+	case MMC_RSP_R3:   c |= RESP_R3;   break;
+	default:
+		pr_debug("Unknown response type %d\n", mmc_resp_type(cmd));
+		return -EINVAL;
+	}
+
+	host->cmd = cmd;
+
+/* FIXME - this seems to be ok commented out but the spec suggest this bit
+ *         should be set when issuing app commands.
+ *	if(cmd->flags & MMC_FLAG_ACMD)
+ *		c |= APP_CMD;
+ */
+	if (data) {
+		c |= DATA_PRESENT;
+		if (data->blocks > 1) {
+			sd_ctrl_write16(host, CTL_STOP_INTERNAL_ACTION, 0x100);
+			c |= TRANSFER_MULTI;
+		}
+		if (data->flags & MMC_DATA_READ)
+			c |= TRANSFER_READ;
+	}
+
+	tmio_mmc_enable_mmc_irqs(host, TMIO_MASK_CMD);
+
+	/* Fire off the command */
+	sd_ctrl_write32(host, CTL_ARG_REG, cmd->arg);
+	sd_ctrl_write16(host, CTL_SD_CMD, c);
+
+	return 0;
+}
+
+/*
+ * This chip always returns (at least?) as much data as you ask for.
+ * I'm unsure what happens if you ask for less than a block. This should be
+ * looked into to ensure that a funny length read doesn't hose the controller.
+ */
+static void tmio_mmc_pio_irq(struct tmio_mmc_host *host)
+{
+	struct mmc_data *data = host->data;
+	void *sg_virt;
+	unsigned short *buf;
+	unsigned int count;
+	unsigned long flags;
+
+	if ((host->chan_tx || host->chan_rx) && !host->force_pio) {
+		pr_err("PIO IRQ in DMA mode!\n");
+		return;
+	} else if (!data) {
+		pr_debug("Spurious PIO IRQ\n");
+		return;
+	}
+
+	sg_virt = tmio_mmc_kmap_atomic(host->sg_ptr, &flags);
+	buf = (unsigned short *)(sg_virt + host->sg_off);
+
+	count = host->sg_ptr->length - host->sg_off;
+	if (count > data->blksz)
+		count = data->blksz;
+
+	pr_debug("count: %08x offset: %08x flags %08x\n",
+		 count, host->sg_off, data->flags);
+
+	/* Transfer the data */
+	if (data->flags & MMC_DATA_READ)
+		sd_ctrl_read16_rep(host, CTL_SD_DATA_PORT, buf, count >> 1);
+	else
+		sd_ctrl_write16_rep(host, CTL_SD_DATA_PORT, buf, count >> 1);
+
+	host->sg_off += count;
+
+	tmio_mmc_kunmap_atomic(host->sg_ptr, &flags, sg_virt);
+
+	if (host->sg_off == host->sg_ptr->length)
+		tmio_mmc_next_sg(host);
+
+	return;
+}
+
+static void tmio_mmc_check_bounce_buffer(struct tmio_mmc_host *host)
+{
+	if (host->sg_ptr == &host->bounce_sg) {
+		unsigned long flags;
+		void *sg_vaddr = tmio_mmc_kmap_atomic(host->sg_orig, &flags);
+		memcpy(sg_vaddr, host->bounce_buf, host->bounce_sg.length);
+		tmio_mmc_kunmap_atomic(host->sg_orig, &flags, sg_vaddr);
+	}
+}
+
+/* needs to be called with host->lock held */
+void tmio_mmc_do_data_irq(struct tmio_mmc_host *host)
+{
+	struct mmc_data *data = host->data;
+	struct mmc_command *stop;
+
+	host->data = NULL;
+
+	if (!data) {
+		dev_warn(&host->pdev->dev, "Spurious data end IRQ\n");
+		return;
+	}
+	stop = data->stop;
+
+	/* FIXME - return correct transfer count on errors */
+	if (!data->error)
+		data->bytes_xfered = data->blocks * data->blksz;
+	else
+		data->bytes_xfered = 0;
+
+	pr_debug("Completed data request\n");
+
+	/*
+	 * FIXME: other drivers allow an optional stop command of any given type
+	 *        which we dont do, as the chip can auto generate them.
+	 *        Perhaps we can be smarter about when to use auto CMD12 and
+	 *        only issue the auto request when we know this is the desired
+	 *        stop command, allowing fallback to the stop command the
+	 *        upper layers expect. For now, we do what works.
+	 */
+
+	if (data->flags & MMC_DATA_READ) {
+		if (host->chan_rx && !host->force_pio)
+			tmio_mmc_check_bounce_buffer(host);
+		dev_dbg(&host->pdev->dev, "Complete Rx request %p\n",
+			host->mrq);
+	} else {
+		dev_dbg(&host->pdev->dev, "Complete Tx request %p\n",
+			host->mrq);
+	}
+
+	if (stop) {
+		if (stop->opcode == 12 && !stop->arg)
+			sd_ctrl_write16(host, CTL_STOP_INTERNAL_ACTION, 0x000);
+		else
+			BUG();
+	}
+
+	tmio_mmc_finish_request(host);
+}
+
+static void tmio_mmc_data_irq(struct tmio_mmc_host *host)
+{
+	struct mmc_data *data;
+	spin_lock(&host->lock);
+	data = host->data;
+
+	if (!data)
+		goto out;
+
+	if (host->chan_tx && (data->flags & MMC_DATA_WRITE) && !host->force_pio) {
+		/*
+		 * Has all data been written out yet? Testing on SuperH showed,
+		 * that in most cases the first interrupt comes already with the
+		 * BUSY status bit clear, but on some operations, like mount or
+		 * in the beginning of a write / sync / umount, there is one
+		 * DATAEND interrupt with the BUSY bit set, in this cases
+		 * waiting for one more interrupt fixes the problem.
+		 */
+		if (!(sd_ctrl_read32(host, CTL_STATUS) & TMIO_STAT_CMD_BUSY)) {
+			tmio_mmc_disable_mmc_irqs(host, TMIO_STAT_DATAEND);
+			tasklet_schedule(&host->dma_complete);
+		}
+	} else if (host->chan_rx && (data->flags & MMC_DATA_READ) && !host->force_pio) {
+		tmio_mmc_disable_mmc_irqs(host, TMIO_STAT_DATAEND);
+		tasklet_schedule(&host->dma_complete);
+	} else {
+		tmio_mmc_do_data_irq(host);
+		tmio_mmc_disable_mmc_irqs(host, TMIO_MASK_READOP | TMIO_MASK_WRITEOP);
+	}
+out:
+	spin_unlock(&host->lock);
+}
+
+static void tmio_mmc_cmd_irq(struct tmio_mmc_host *host,
+	unsigned int stat)
+{
+	struct mmc_command *cmd = host->cmd;
+	int i, addr;
+
+	spin_lock(&host->lock);
+
+	if (!host->cmd) {
+		pr_debug("Spurious CMD irq\n");
+		goto out;
+	}
+
+	host->cmd = NULL;
+
+	/* This controller is sicker than the PXA one. Not only do we need to
+	 * drop the top 8 bits of the first response word, we also need to
+	 * modify the order of the response for short response command types.
+	 */
+
+	for (i = 3, addr = CTL_RESPONSE ; i >= 0 ; i--, addr += 4)
+		cmd->resp[i] = sd_ctrl_read32(host, addr);
+
+	if (cmd->flags &  MMC_RSP_136) {
+		cmd->resp[0] = (cmd->resp[0] << 8) | (cmd->resp[1] >> 24);
+		cmd->resp[1] = (cmd->resp[1] << 8) | (cmd->resp[2] >> 24);
+		cmd->resp[2] = (cmd->resp[2] << 8) | (cmd->resp[3] >> 24);
+		cmd->resp[3] <<= 8;
+	} else if (cmd->flags & MMC_RSP_R3) {
+		cmd->resp[0] = cmd->resp[3];
+	}
+
+	if (stat & TMIO_STAT_CMDTIMEOUT)
+		cmd->error = -ETIMEDOUT;
+	else if (stat & TMIO_STAT_CRCFAIL && cmd->flags & MMC_RSP_CRC)
+		cmd->error = -EILSEQ;
+
+	/* If there is data to handle we enable data IRQs here, and
+	 * we will ultimatley finish the request in the data_end handler.
+	 * If theres no data or we encountered an error, finish now.
+	 */
+	if (host->data && !cmd->error) {
+		if (host->data->flags & MMC_DATA_READ) {
+			if (host->force_pio || !host->chan_rx)
+				tmio_mmc_enable_mmc_irqs(host, TMIO_MASK_READOP);
+			else
+				tasklet_schedule(&host->dma_issue);
+		} else {
+			if (host->force_pio || !host->chan_tx)
+				tmio_mmc_enable_mmc_irqs(host, TMIO_MASK_WRITEOP);
+			else
+				tasklet_schedule(&host->dma_issue);
+		}
+	} else {
+		tmio_mmc_finish_request(host);
+	}
+
+out:
+	spin_unlock(&host->lock);
+}
+
+static irqreturn_t tmio_mmc_irq(int irq, void *devid)
+{
+	struct tmio_mmc_host *host = devid;
+	struct tmio_mmc_data *pdata = host->pdata;
+	unsigned int ireg, irq_mask, status;
+	unsigned int sdio_ireg, sdio_irq_mask, sdio_status;
+
+	pr_debug("MMC IRQ begin\n");
+
+	status = sd_ctrl_read32(host, CTL_STATUS);
+	irq_mask = sd_ctrl_read32(host, CTL_IRQ_MASK);
+	ireg = status & TMIO_MASK_IRQ & ~irq_mask;
+
+	sdio_ireg = 0;
+	if (!ireg && pdata->flags & TMIO_MMC_SDIO_IRQ) {
+		sdio_status = sd_ctrl_read16(host, CTL_SDIO_STATUS);
+		sdio_irq_mask = sd_ctrl_read16(host, CTL_SDIO_IRQ_MASK);
+		sdio_ireg = sdio_status & TMIO_SDIO_MASK_ALL & ~sdio_irq_mask;
+
+		sd_ctrl_write16(host, CTL_SDIO_STATUS, sdio_status & ~TMIO_SDIO_MASK_ALL);
+
+		if (sdio_ireg && !host->sdio_irq_enabled) {
+			pr_warning("tmio_mmc: Spurious SDIO IRQ, disabling! 0x%04x 0x%04x 0x%04x\n",
+				   sdio_status, sdio_irq_mask, sdio_ireg);
+			tmio_mmc_enable_sdio_irq(host->mmc, 0);
+			goto out;
+		}
+
+		if (host->mmc->caps & MMC_CAP_SDIO_IRQ &&
+			sdio_ireg & TMIO_SDIO_STAT_IOIRQ)
+			mmc_signal_sdio_irq(host->mmc);
+
+		if (sdio_ireg)
+			goto out;
+	}
+
+	pr_debug_status(status);
+	pr_debug_status(ireg);
+
+	if (!ireg) {
+		tmio_mmc_disable_mmc_irqs(host, status & ~irq_mask);
+
+		pr_warning("tmio_mmc: Spurious irq, disabling! "
+			"0x%08x 0x%08x 0x%08x\n", status, irq_mask, ireg);
+		pr_debug_status(status);
+
+		goto out;
+	}
+
+	while (ireg) {
+		/* Card insert / remove attempts */
+		if (ireg & (TMIO_STAT_CARD_INSERT | TMIO_STAT_CARD_REMOVE)) {
+			tmio_mmc_ack_mmc_irqs(host, TMIO_STAT_CARD_INSERT |
+				TMIO_STAT_CARD_REMOVE);
+			mmc_detect_change(host->mmc, msecs_to_jiffies(100));
+		}
+
+		/* CRC and other errors */
+/*		if (ireg & TMIO_STAT_ERR_IRQ)
+ *			handled |= tmio_error_irq(host, irq, stat);
+ */
+
+		/* Command completion */
+		if (ireg & (TMIO_STAT_CMDRESPEND | TMIO_STAT_CMDTIMEOUT)) {
+			tmio_mmc_ack_mmc_irqs(host,
+				     TMIO_STAT_CMDRESPEND |
+				     TMIO_STAT_CMDTIMEOUT);
+			tmio_mmc_cmd_irq(host, status);
+		}
+
+		/* Data transfer */
+		if (ireg & (TMIO_STAT_RXRDY | TMIO_STAT_TXRQ)) {
+			tmio_mmc_ack_mmc_irqs(host, TMIO_STAT_RXRDY | TMIO_STAT_TXRQ);
+			tmio_mmc_pio_irq(host);
+		}
+
+		/* Data transfer completion */
+		if (ireg & TMIO_STAT_DATAEND) {
+			tmio_mmc_ack_mmc_irqs(host, TMIO_STAT_DATAEND);
+			tmio_mmc_data_irq(host);
+		}
+
+		/* Check status - keep going until we've handled it all */
+		status = sd_ctrl_read32(host, CTL_STATUS);
+		irq_mask = sd_ctrl_read32(host, CTL_IRQ_MASK);
+		ireg = status & TMIO_MASK_IRQ & ~irq_mask;
+
+		pr_debug("Status at end of loop: %08x\n", status);
+		pr_debug_status(status);
+	}
+	pr_debug("MMC IRQ end\n");
+
+out:
+	return IRQ_HANDLED;
+}
+
+static int tmio_mmc_start_data(struct tmio_mmc_host *host,
+	struct mmc_data *data)
+{
+	struct tmio_mmc_data *pdata = host->pdata;
+
+	pr_debug("setup data transfer: blocksize %08x  nr_blocks %d\n",
+		 data->blksz, data->blocks);
+
+	/* Some hardware cannot perform 2 byte requests in 4 bit mode */
+	if (host->mmc->ios.bus_width == MMC_BUS_WIDTH_4) {
+		int blksz_2bytes = pdata->flags & TMIO_MMC_BLKSZ_2BYTES;
+
+		if (data->blksz < 2 || (data->blksz < 4 && !blksz_2bytes)) {
+			pr_err("%s: %d byte block unsupported in 4 bit mode\n",
+			       mmc_hostname(host->mmc), data->blksz);
+			return -EINVAL;
+		}
+	}
+
+	tmio_mmc_init_sg(host, data);
+	host->data = data;
+
+	/* Set transfer length / blocksize */
+	sd_ctrl_write16(host, CTL_SD_XFER_LEN, data->blksz);
+	sd_ctrl_write16(host, CTL_XFER_BLK_COUNT, data->blocks);
+
+	tmio_mmc_start_dma(host, data);
+
+	return 0;
+}
+
+/* Process requests from the MMC layer */
+static void tmio_mmc_request(struct mmc_host *mmc, struct mmc_request *mrq)
+{
+	struct tmio_mmc_host *host = mmc_priv(mmc);
+	int ret;
+
+	if (host->mrq)
+		pr_debug("request not null\n");
+
+	host->last_req_ts = jiffies;
+	wmb();
+	host->mrq = mrq;
+
+	if (mrq->data) {
+		ret = tmio_mmc_start_data(host, mrq->data);
+		if (ret)
+			goto fail;
+	}
+
+	ret = tmio_mmc_start_command(host, mrq->cmd);
+	if (!ret) {
+		schedule_delayed_work(&host->delayed_reset_work,
+				      msecs_to_jiffies(2000));
+		return;
+	}
+
+fail:
+	host->mrq = NULL;
+	host->force_pio = false;
+	mrq->cmd->error = ret;
+	mmc_request_done(mmc, mrq);
+}
+
+/* Set MMC clock / power.
+ * Note: This controller uses a simple divider scheme therefore it cannot
+ * run a MMC card at full speed (20MHz). The max clock is 24MHz on SD, but as
+ * MMC wont run that fast, it has to be clocked at 12MHz which is the next
+ * slowest setting.
+ */
+static void tmio_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
+{
+	struct tmio_mmc_host *host = mmc_priv(mmc);
+
+	if (ios->clock)
+		tmio_mmc_set_clock(host, ios->clock);
+
+	/* Power sequence - OFF -> UP -> ON */
+	if (ios->power_mode == MMC_POWER_OFF || !ios->clock) {
+		/* power down SD bus */
+		if (ios->power_mode == MMC_POWER_OFF && host->set_pwr)
+			host->set_pwr(host->pdev, 0);
+		tmio_mmc_clk_stop(host);
+	} else if (ios->power_mode == MMC_POWER_UP) {
+		/* power up SD bus */
+		if (host->set_pwr)
+			host->set_pwr(host->pdev, 1);
+	} else {
+		/* start bus clock */
+		tmio_mmc_clk_start(host);
+	}
+
+	switch (ios->bus_width) {
+	case MMC_BUS_WIDTH_1:
+		sd_ctrl_write16(host, CTL_SD_MEM_CARD_OPT, 0x80e0);
+	break;
+	case MMC_BUS_WIDTH_4:
+		sd_ctrl_write16(host, CTL_SD_MEM_CARD_OPT, 0x00e0);
+	break;
+	}
+
+	/* Let things settle. delay taken from winCE driver */
+	udelay(140);
+}
+
+static int tmio_mmc_get_ro(struct mmc_host *mmc)
+{
+	struct tmio_mmc_host *host = mmc_priv(mmc);
+	struct tmio_mmc_data *pdata = host->pdata;
+
+	return ((pdata->flags & TMIO_MMC_WRPROTECT_DISABLE) ||
+		!(sd_ctrl_read32(host, CTL_STATUS) & TMIO_STAT_WRPROTECT));
+}
+
+static int tmio_mmc_get_cd(struct mmc_host *mmc)
+{
+	struct tmio_mmc_host *host = mmc_priv(mmc);
+	struct tmio_mmc_data *pdata = host->pdata;
+
+	if (!pdata->get_cd)
+		return -ENOSYS;
+	else
+		return pdata->get_cd(host->pdev);
+}
+
+static const struct mmc_host_ops tmio_mmc_ops = {
+	.request	= tmio_mmc_request,
+	.set_ios	= tmio_mmc_set_ios,
+	.get_ro         = tmio_mmc_get_ro,
+	.get_cd		= tmio_mmc_get_cd,
+	.enable_sdio_irq = tmio_mmc_enable_sdio_irq,
+};
+
+int __devinit tmio_mmc_host_probe(struct tmio_mmc_host **host,
+				  struct platform_device *pdev,
+				  struct tmio_mmc_data *pdata)
+{
+	struct tmio_mmc_host *_host;
+	struct mmc_host *mmc;
+	struct resource *res_ctl;
+	int ret;
+	u32 irq_mask = TMIO_MASK_CMD;
+
+	res_ctl = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res_ctl)
+		return -EINVAL;
+
+	mmc = mmc_alloc_host(sizeof(struct tmio_mmc_host), &pdev->dev);
+	if (!mmc)
+		return -ENOMEM;
+
+	_host = mmc_priv(mmc);
+	_host->pdata = pdata;
+	_host->mmc = mmc;
+	_host->pdev = pdev;
+	platform_set_drvdata(pdev, mmc);
+
+	_host->set_pwr = pdata->set_pwr;
+	_host->set_clk_div = pdata->set_clk_div;
+
+	/* SD control register space size is 0x200, 0x400 for bus_shift=1 */
+	_host->bus_shift = resource_size(res_ctl) >> 10;
+
+	_host->ctl = ioremap(res_ctl->start, resource_size(res_ctl));
+	if (!_host->ctl) {
+		ret = -ENOMEM;
+		goto host_free;
+	}
+
+	mmc->ops = &tmio_mmc_ops;
+	mmc->caps = MMC_CAP_4_BIT_DATA | pdata->capabilities;
+	mmc->f_max = pdata->hclk;
+	mmc->f_min = mmc->f_max / 512;
+	mmc->max_segs = 32;
+	mmc->max_blk_size = 512;
+	mmc->max_blk_count = (PAGE_CACHE_SIZE / mmc->max_blk_size) *
+		mmc->max_segs;
+	mmc->max_req_size = mmc->max_blk_size * mmc->max_blk_count;
+	mmc->max_seg_size = mmc->max_req_size;
+	if (pdata->ocr_mask)
+		mmc->ocr_avail = pdata->ocr_mask;
+	else
+		mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34;
+
+	tmio_mmc_clk_stop(_host);
+	tmio_mmc_reset(_host);
+
+	ret = platform_get_irq(pdev, 0);
+	if (ret < 0)
+		goto unmap_ctl;
+
+	_host->irq = ret;
+
+	tmio_mmc_disable_mmc_irqs(_host, TMIO_MASK_ALL);
+	if (pdata->flags & TMIO_MMC_SDIO_IRQ)
+		tmio_mmc_enable_sdio_irq(mmc, 0);
+
+	ret = request_irq(_host->irq, tmio_mmc_irq, IRQF_DISABLED |
+		IRQF_TRIGGER_FALLING, dev_name(&pdev->dev), _host);
+	if (ret)
+		goto unmap_ctl;
+
+	spin_lock_init(&_host->lock);
+
+	/* Init delayed work for request timeouts */
+	INIT_DELAYED_WORK(&_host->delayed_reset_work, tmio_mmc_reset_work);
+
+	/* See if we also get DMA */
+	tmio_mmc_request_dma(_host, pdata);
+
+	mmc_add_host(mmc);
+
+	/* Unmask the IRQs we want to know about */
+	if (!_host->chan_rx)
+		irq_mask |= TMIO_MASK_READOP;
+	if (!_host->chan_tx)
+		irq_mask |= TMIO_MASK_WRITEOP;
+
+	tmio_mmc_enable_mmc_irqs(_host, irq_mask);
+
+	*host = _host;
+
+	return 0;
+
+unmap_ctl:
+	iounmap(_host->ctl);
+host_free:
+	mmc_free_host(mmc);
+
+	return ret;
+}
+EXPORT_SYMBOL(tmio_mmc_host_probe);
+
+void tmio_mmc_host_remove(struct tmio_mmc_host *host)
+{
+	mmc_remove_host(host->mmc);
+	cancel_delayed_work_sync(&host->delayed_reset_work);
+	tmio_mmc_release_dma(host);
+	free_irq(host->irq, host);
+	iounmap(host->ctl);
+	mmc_free_host(host->mmc);
+}
+EXPORT_SYMBOL(tmio_mmc_host_remove);
+
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/mmc/host/via-sdmmc.c b/drivers/mmc/host/via-sdmmc.c
index 8c5b4881ccd6..4dfe2c02ea91 100644
--- a/drivers/mmc/host/via-sdmmc.c
+++ b/drivers/mmc/host/via-sdmmc.c
@@ -1087,14 +1087,13 @@ static int __devinit via_sd_probe(struct pci_dev *pcidev,
 	struct mmc_host *mmc;
 	struct via_crdr_mmc_host *sdhost;
 	u32 base, len;
-	u8 rev, gatt;
+	u8  gatt;
 	int ret;
 
-	pci_read_config_byte(pcidev, PCI_CLASS_REVISION, &rev);
 	pr_info(DRV_NAME
 		": VIA SDMMC controller found at %s [%04x:%04x] (rev %x)\n",
 		pci_name(pcidev), (int)pcidev->vendor, (int)pcidev->device,
-		(int)rev);
+		(int)pcidev->revision);
 
 	ret = pci_enable_device(pcidev);
 	if (ret)
diff --git a/drivers/mmc/host/wbsd.c b/drivers/mmc/host/wbsd.c
index 7fca0a386ba0..62e5a4d171e1 100644
--- a/drivers/mmc/host/wbsd.c
+++ b/drivers/mmc/host/wbsd.c
@@ -484,7 +484,7 @@ static void wbsd_fill_fifo(struct wbsd_host *host)
 
 	/*
 	 * Check that we aren't being called after the
-	 * entire buffer has been transfered.
+	 * entire buffer has been transferred.
 	 */
 	if (host->num_sg == 0)
 		return;
@@ -828,7 +828,7 @@ static void wbsd_request(struct mmc_host *mmc, struct mmc_request *mrq)
 	/*
 	 * If this is a data transfer the request
 	 * will be finished after the data has
-	 * transfered.
+	 * transferred.
 	 */
 	if (cmd->data && !cmd->error) {
 		/*
@@ -904,7 +904,7 @@ static void wbsd_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
 			setup &= ~WBSD_DAT3_H;
 
 			/*
-			 * We cannot resume card detection immediatly
+			 * We cannot resume card detection immediately
 			 * because of capacitance and delays in the chip.
 			 */
 			mod_timer(&host->ignore_timer, jiffies + HZ / 100);
diff --git a/drivers/mtd/Kconfig b/drivers/mtd/Kconfig
index 77414702cb00..b4567c35a322 100644
--- a/drivers/mtd/Kconfig
+++ b/drivers/mtd/Kconfig
@@ -33,14 +33,6 @@ config MTD_TESTS
 	  should normally be compiled as kernel modules. The modules perform
 	  various checks and verifications when loaded.
 
-config MTD_CONCAT
-	tristate "MTD concatenating support"
-	help
-	  Support for concatenating several MTD devices into a single
-	  (virtual) one. This allows you to have -for example- a JFFS(2)
-	  file system spanning multiple physical flash chips. If unsure,
-	  say 'Y'.
-
 config MTD_PARTITIONS
 	bool "MTD partitioning support"
 	help
@@ -333,6 +325,16 @@ config MTD_OOPS
 	  To use, add console=ttyMTDx to the kernel command line,
 	  where x is the MTD device number to use.
 
+config MTD_SWAP
+	tristate "Swap on MTD device support"
+	depends on MTD && SWAP
+	select MTD_BLKDEVS
+	help
+	  Provides volatile block device driver on top of mtd partition
+          suitable for swapping.  The mapping of written blocks is not saved.
+	  The driver provides wear leveling by storing erase counter into the
+	  OOB.
+
 source "drivers/mtd/chips/Kconfig"
 
 source "drivers/mtd/maps/Kconfig"
diff --git a/drivers/mtd/Makefile b/drivers/mtd/Makefile
index d4e7f25b1ebb..d578095fb255 100644
--- a/drivers/mtd/Makefile
+++ b/drivers/mtd/Makefile
@@ -4,11 +4,10 @@
 
 # Core functionality.
 obj-$(CONFIG_MTD)		+= mtd.o
-mtd-y				:= mtdcore.o mtdsuper.o
+mtd-y				:= mtdcore.o mtdsuper.o mtdconcat.o
 mtd-$(CONFIG_MTD_PARTITIONS)	+= mtdpart.o
 mtd-$(CONFIG_MTD_OF_PARTS)	+= ofpart.o
 
-obj-$(CONFIG_MTD_CONCAT)	+= mtdconcat.o
 obj-$(CONFIG_MTD_REDBOOT_PARTS) += redboot.o
 obj-$(CONFIG_MTD_CMDLINE_PARTS) += cmdlinepart.o
 obj-$(CONFIG_MTD_AFS_PARTS)	+= afs.o
@@ -26,6 +25,7 @@ obj-$(CONFIG_RFD_FTL)		+= rfd_ftl.o
 obj-$(CONFIG_SSFDC)		+= ssfdc.o
 obj-$(CONFIG_SM_FTL)		+= sm_ftl.o
 obj-$(CONFIG_MTD_OOPS)		+= mtdoops.o
+obj-$(CONFIG_MTD_SWAP)		+= mtdswap.o
 
 nftl-objs		:= nftlcore.o nftlmount.o
 inftl-objs		:= inftlcore.o inftlmount.o
diff --git a/drivers/mtd/chips/Kconfig b/drivers/mtd/chips/Kconfig
index 35c6a23b183b..b1e3c26edd6d 100644
--- a/drivers/mtd/chips/Kconfig
+++ b/drivers/mtd/chips/Kconfig
@@ -19,7 +19,7 @@ config MTD_JEDECPROBE
 	help
 	  This option enables JEDEC-style probing of flash chips which are not
 	  compatible with the Common Flash Interface, but will use the common
-	  CFI-targetted flash drivers for any chips which are identified which
+	  CFI-targeted flash drivers for any chips which are identified which
 	  are in fact compatible in all but the probe method. This actually
 	  covers most AMD/Fujitsu-compatible chips and also non-CFI
 	  Intel chips.
diff --git a/drivers/mtd/chips/cfi_cmdset_0001.c b/drivers/mtd/chips/cfi_cmdset_0001.c
index 4aaa88f8ab5f..09cb7c8d93b4 100644
--- a/drivers/mtd/chips/cfi_cmdset_0001.c
+++ b/drivers/mtd/chips/cfi_cmdset_0001.c
@@ -455,7 +455,7 @@ struct mtd_info *cfi_cmdset_0001(struct map_info *map, int primary)
 	mtd->flags   = MTD_CAP_NORFLASH;
 	mtd->name    = map->name;
 	mtd->writesize = 1;
-	mtd->writebufsize = 1 << cfi->cfiq->MaxBufWriteSize;
+	mtd->writebufsize = cfi_interleave(cfi) << cfi->cfiq->MaxBufWriteSize;
 
 	mtd->reboot_notifier.notifier_call = cfi_intelext_reboot;
 
@@ -1247,12 +1247,12 @@ static int inval_cache_and_wait_for_operation(
 			break;
 
 		if (chip->erase_suspended && chip_state == FL_ERASING)  {
-			/* Erase suspend occured while sleep: reset timeout */
+			/* Erase suspend occurred while sleep: reset timeout */
 			timeo = reset_timeo;
 			chip->erase_suspended = 0;
 		}
 		if (chip->write_suspended && chip_state == FL_WRITING)  {
-			/* Write suspend occured while sleep: reset timeout */
+			/* Write suspend occurred while sleep: reset timeout */
 			timeo = reset_timeo;
 			chip->write_suspended = 0;
 		}
diff --git a/drivers/mtd/chips/cfi_cmdset_0002.c b/drivers/mtd/chips/cfi_cmdset_0002.c
index f072fcfde04e..0b49266840b9 100644
--- a/drivers/mtd/chips/cfi_cmdset_0002.c
+++ b/drivers/mtd/chips/cfi_cmdset_0002.c
@@ -263,7 +263,7 @@ static void fixup_old_sst_eraseregion(struct mtd_info *mtd)
 	struct cfi_private *cfi = map->fldrv_priv;
 
 	/*
-	 * These flashes report two seperate eraseblock regions based on the
+	 * These flashes report two separate eraseblock regions based on the
 	 * sector_erase-size and block_erase-size, although they both operate on the
 	 * same memory. This is not allowed according to CFI, so we just pick the
 	 * sector_erase-size.
@@ -349,6 +349,7 @@ static struct cfi_fixup cfi_fixup_table[] = {
 	{ CFI_MFR_ATMEL, CFI_ID_ANY, fixup_convert_atmel_pri },
 #ifdef AMD_BOOTLOC_BUG
 	{ CFI_MFR_AMD, CFI_ID_ANY, fixup_amd_bootblock },
+	{ CFI_MFR_AMIC, CFI_ID_ANY, fixup_amd_bootblock },
 	{ CFI_MFR_MACRONIX, CFI_ID_ANY, fixup_amd_bootblock },
 #endif
 	{ CFI_MFR_AMD, 0x0050, fixup_use_secsi },
@@ -440,7 +441,7 @@ struct mtd_info *cfi_cmdset_0002(struct map_info *map, int primary)
 	mtd->flags   = MTD_CAP_NORFLASH;
 	mtd->name    = map->name;
 	mtd->writesize = 1;
-	mtd->writebufsize = 1 << cfi->cfiq->MaxBufWriteSize;
+	mtd->writebufsize = cfi_interleave(cfi) << cfi->cfiq->MaxBufWriteSize;
 
 	DEBUG(MTD_DEBUG_LEVEL3, "MTD %s(): write buffer size %d\n",
 		__func__, mtd->writebufsize);
@@ -610,8 +611,8 @@ static struct mtd_info *cfi_amdstd_setup(struct mtd_info *mtd)
  *
  * Note that anything more complicated than checking if no bits are toggling
  * (including checking DQ5 for an error status) is tricky to get working
- * correctly and is therefore not done	(particulary with interleaved chips
- * as each chip must be checked independantly of the others).
+ * correctly and is therefore not done	(particularly with interleaved chips
+ * as each chip must be checked independently of the others).
  */
 static int __xipram chip_ready(struct map_info *map, unsigned long addr)
 {
@@ -634,8 +635,8 @@ static int __xipram chip_ready(struct map_info *map, unsigned long addr)
  *
  * Note that anything more complicated than checking if no bits are toggling
  * (including checking DQ5 for an error status) is tricky to get working
- * correctly and is therefore not done	(particulary with interleaved chips
- * as each chip must be checked independantly of the others).
+ * correctly and is therefore not done	(particularly with interleaved chips
+ * as each chip must be checked independently of the others).
  *
  */
 static int __xipram chip_good(struct map_info *map, unsigned long addr, map_word expected)
diff --git a/drivers/mtd/chips/cfi_cmdset_0020.c b/drivers/mtd/chips/cfi_cmdset_0020.c
index c04b7658abe9..ed56ad3884fb 100644
--- a/drivers/mtd/chips/cfi_cmdset_0020.c
+++ b/drivers/mtd/chips/cfi_cmdset_0020.c
@@ -238,7 +238,7 @@ static struct mtd_info *cfi_staa_setup(struct map_info *map)
 	mtd->resume = cfi_staa_resume;
 	mtd->flags = MTD_CAP_NORFLASH & ~MTD_BIT_WRITEABLE;
 	mtd->writesize = 8; /* FIXME: Should be 0 for STMicro flashes w/out ECC */
-	mtd->writebufsize = 1 << cfi->cfiq->MaxBufWriteSize;
+	mtd->writebufsize = cfi_interleave(cfi) << cfi->cfiq->MaxBufWriteSize;
 	map->fldrv = &cfi_staa_chipdrv;
 	__module_get(THIS_MODULE);
 	mtd->name = map->name;
diff --git a/drivers/mtd/chips/cfi_util.c b/drivers/mtd/chips/cfi_util.c
index 6ae3d111e1e7..8e464054a631 100644
--- a/drivers/mtd/chips/cfi_util.c
+++ b/drivers/mtd/chips/cfi_util.c
@@ -1,6 +1,6 @@
 /*
  * Common Flash Interface support:
- *   Generic utility functions not dependant on command set
+ *   Generic utility functions not dependent on command set
  *
  * Copyright (C) 2002 Red Hat
  * Copyright (C) 2003 STMicroelectronics Limited
diff --git a/drivers/mtd/chips/jedec_probe.c b/drivers/mtd/chips/jedec_probe.c
index 4e1be51cc122..ea832ea0e4aa 100644
--- a/drivers/mtd/chips/jedec_probe.c
+++ b/drivers/mtd/chips/jedec_probe.c
@@ -2075,7 +2075,7 @@ static inline int jedec_match( uint32_t base,
 	}
 
 	/*
-	 * Make sure the ID's dissappear when the device is taken out of
+	 * Make sure the ID's disappear when the device is taken out of
 	 * ID mode.  The only time this should fail when it should succeed
 	 * is when the ID's are written as data to the same
 	 * addresses.  For this rare and unfortunate case the chip
diff --git a/drivers/mtd/devices/block2mtd.c b/drivers/mtd/devices/block2mtd.c
index f29a6f9df6e7..97183c8c9e33 100644
--- a/drivers/mtd/devices/block2mtd.c
+++ b/drivers/mtd/devices/block2mtd.c
@@ -295,7 +295,7 @@ static struct block2mtd_dev *add_device(char *devname, int erase_size)
 	dev->mtd.owner = THIS_MODULE;
 
 	if (add_mtd_device(&dev->mtd)) {
-		/* Device didnt get added, so free the entry */
+		/* Device didn't get added, so free the entry */
 		goto devinit_err;
 	}
 	list_add(&dev->list, &blkmtd_device_list);
diff --git a/drivers/mtd/devices/doc2001plus.c b/drivers/mtd/devices/doc2001plus.c
index 719b2915dc3a..8b36fa77a195 100644
--- a/drivers/mtd/devices/doc2001plus.c
+++ b/drivers/mtd/devices/doc2001plus.c
@@ -90,7 +90,7 @@ static inline int DoC_WaitReady(void __iomem * docptr)
 	return ret;
 }
 
-/* For some reason the Millennium Plus seems to occassionally put itself
+/* For some reason the Millennium Plus seems to occasionally put itself
  * into reset mode. For me this happens randomly, with no pattern that I
  * can detect. M-systems suggest always check this on any block level
  * operation and setting to normal mode if in reset mode.
diff --git a/drivers/mtd/devices/docecc.c b/drivers/mtd/devices/docecc.c
index a99838bb2dc0..37ef29a73ee4 100644
--- a/drivers/mtd/devices/docecc.c
+++ b/drivers/mtd/devices/docecc.c
@@ -109,7 +109,7 @@ for(ci=(n)-1;ci >=0;ci--)\
    of the integer "alpha_to[i]" with a(0) being the LSB and a(m-1) the MSB. Thus for
    example the polynomial representation of @^5 would be given by the binary
    representation of the integer "alpha_to[5]".
-                   Similarily, index_of[] can be used as follows:
+                   Similarly, index_of[] can be used as follows:
         As above, let @ represent the primitive element of GF(2^m) that is
    the root of the primitive polynomial p(x). In order to find the power
    of @ (alpha) that has the polynomial representation
@@ -121,7 +121,7 @@ for(ci=(n)-1;ci >=0;ci--)\
    NOTE:
         The element alpha_to[2^m-1] = 0 always signifying that the
    representation of "@^infinity" = 0 is (0,0,0,...,0).
-        Similarily, the element index_of[0] = A0 always signifying
+        Similarly, the element index_of[0] = A0 always signifying
    that the power of alpha which has the polynomial representation
    (0,0,...,0) is "infinity".
 
diff --git a/drivers/mtd/devices/lart.c b/drivers/mtd/devices/lart.c
index caf604167f03..4b829f97d56c 100644
--- a/drivers/mtd/devices/lart.c
+++ b/drivers/mtd/devices/lart.c
@@ -353,7 +353,7 @@ static inline int erase_block (__u32 offset)
    /* put the flash back into command mode */
    write32 (DATA_TO_FLASH (READ_ARRAY),offset);
 
-   /* was the erase successfull? */
+   /* was the erase successful? */
    if ((status & STATUS_ERASE_ERR))
 	 {
 		printk (KERN_WARNING "%s: erase error at address 0x%.8x.\n",module_name,offset);
@@ -508,7 +508,7 @@ static inline int write_dword (__u32 offset,__u32 x)
    /* put the flash back into command mode */
    write32 (DATA_TO_FLASH (READ_ARRAY),offset);
 
-   /* was the write successfull? */
+   /* was the write successful? */
    if ((status & STATUS_PGM_ERR) || read32 (offset) != x)
 	 {
 		printk (KERN_WARNING "%s: write error at address 0x%.8x.\n",module_name,offset);
diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c
index e4eba6cc1b2e..3fb981d4bb51 100644
--- a/drivers/mtd/devices/m25p80.c
+++ b/drivers/mtd/devices/m25p80.c
@@ -655,7 +655,8 @@ static const struct spi_device_id m25p_ids[] = {
 	{ "at26df161a", INFO(0x1f4601, 0, 64 * 1024, 32, SECT_4K) },
 	{ "at26df321",  INFO(0x1f4700, 0, 64 * 1024, 64, SECT_4K) },
 
-	/* EON -- en25pxx */
+	/* EON -- en25xxx */
+	{ "en25f32", INFO(0x1c3116, 0, 64 * 1024,  64, SECT_4K) },
 	{ "en25p32", INFO(0x1c2016, 0, 64 * 1024,  64, 0) },
 	{ "en25p64", INFO(0x1c2017, 0, 64 * 1024, 128, 0) },
 
@@ -728,6 +729,8 @@ static const struct spi_device_id m25p_ids[] = {
 	{ "m25pe80", INFO(0x208014,  0, 64 * 1024, 16,       0) },
 	{ "m25pe16", INFO(0x208015,  0, 64 * 1024, 32, SECT_4K) },
 
+	{ "m25px64", INFO(0x207117,  0, 64 * 1024, 128, 0) },
+
 	/* Winbond -- w25x "blocks" are 64K, "sectors" are 4KiB */
 	{ "w25x10", INFO(0xef3011, 0, 64 * 1024,  2,  SECT_4K) },
 	{ "w25x20", INFO(0xef3012, 0, 64 * 1024,  4,  SECT_4K) },
diff --git a/drivers/mtd/devices/mtdram.c b/drivers/mtd/devices/mtdram.c
index 26a6e809013d..1483e18971ce 100644
--- a/drivers/mtd/devices/mtdram.c
+++ b/drivers/mtd/devices/mtdram.c
@@ -121,6 +121,7 @@ int mtdram_init_device(struct mtd_info *mtd, void *mapped_address,
 	mtd->flags = MTD_CAP_RAM;
 	mtd->size = size;
 	mtd->writesize = 1;
+	mtd->writebufsize = 64; /* Mimic CFI NOR flashes */
 	mtd->erasesize = MTDRAM_ERASE_SIZE;
 	mtd->priv = mapped_address;
 
diff --git a/drivers/mtd/devices/phram.c b/drivers/mtd/devices/phram.c
index 52393282eaf1..8d28fa02a5a2 100644
--- a/drivers/mtd/devices/phram.c
+++ b/drivers/mtd/devices/phram.c
@@ -117,6 +117,7 @@ static void unregister_devices(void)
 	list_for_each_entry_safe(this, safe, &phram_list, list) {
 		del_mtd_device(&this->mtd);
 		iounmap(this->mtd.priv);
+		kfree(this->mtd.name);
 		kfree(this);
 	}
 }
@@ -275,6 +276,8 @@ static int phram_setup(const char *val, struct kernel_param *kp)
 	ret = register_device(name, start, len);
 	if (!ret)
 		pr_info("%s device: %#x at %#x\n", name, len, start);
+	else
+		kfree(name);
 
 	return ret;
 }
diff --git a/drivers/mtd/devices/pmc551.c b/drivers/mtd/devices/pmc551.c
index ef0aba0ce58f..41b8cdcc64cb 100644
--- a/drivers/mtd/devices/pmc551.c
+++ b/drivers/mtd/devices/pmc551.c
@@ -351,7 +351,7 @@ static int pmc551_write(struct mtd_info *mtd, loff_t to, size_t len,
  * Fixup routines for the V370PDC
  * PCI device ID 0x020011b0
  *
- * This function basicly kick starts the DRAM oboard the card and gets it
+ * This function basically kick starts the DRAM oboard the card and gets it
  * ready to be used.  Before this is done the device reads VERY erratic, so
  * much that it can crash the Linux 2.2.x series kernels when a user cat's
  * /proc/pci .. though that is mainly a kernel bug in handling the PCI DEVSEL
@@ -540,7 +540,7 @@ static u32 fixup_pmc551(struct pci_dev *dev)
 
 	/*
 	 * Check to make certain the DEVSEL is set correctly, this device
-	 * has a tendancy to assert DEVSEL and TRDY when a write is performed
+	 * has a tendency to assert DEVSEL and TRDY when a write is performed
 	 * to the memory when memory is read-only
 	 */
 	if ((cmd & PCI_STATUS_DEVSEL_MASK) != 0x0) {
diff --git a/drivers/mtd/lpddr/lpddr_cmds.c b/drivers/mtd/lpddr/lpddr_cmds.c
index 04fdfcca93f7..12679925b420 100644
--- a/drivers/mtd/lpddr/lpddr_cmds.c
+++ b/drivers/mtd/lpddr/lpddr_cmds.c
@@ -3,7 +3,7 @@
  * erase, lock/unlock support for LPDDR flash memories
  * (C) 2008 Korolev Alexey <akorolev@infradead.org>
  * (C) 2008 Vasiliy Leonenko <vasiliy.leonenko@gmail.com>
- * Many thanks to Roman Borisov for intial enabling
+ * Many thanks to Roman Borisov for initial enabling
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
@@ -171,7 +171,7 @@ static int wait_for_ready(struct map_info *map, struct flchip *chip,
 			mutex_lock(&chip->mutex);
 		}
 		if (chip->erase_suspended || chip->write_suspended)  {
-			/* Suspend has occured while sleep: reset timeout */
+			/* Suspend has occurred while sleep: reset timeout */
 			timeo = reset_timeo;
 			chip->erase_suspended = chip->write_suspended = 0;
 		}
diff --git a/drivers/mtd/maps/Kconfig b/drivers/mtd/maps/Kconfig
index 5d37d315fa98..44b1f46458ca 100644
--- a/drivers/mtd/maps/Kconfig
+++ b/drivers/mtd/maps/Kconfig
@@ -114,7 +114,7 @@ config MTD_SUN_UFLASH
 
 config MTD_SC520CDP
 	tristate "CFI Flash device mapped on AMD SC520 CDP"
-	depends on X86 && MTD_CFI && MTD_CONCAT
+	depends on X86 && MTD_CFI
 	help
 	  The SC520 CDP board has two banks of CFI-compliant chips and one
 	  Dual-in-line JEDEC chip. This 'mapping' driver supports that
@@ -262,7 +262,7 @@ config MTD_BCM963XX
 
 config MTD_DILNETPC
 	tristate "CFI Flash device mapped on DIL/Net PC"
-	depends on X86 && MTD_CONCAT && MTD_PARTITIONS && MTD_CFI_INTELEXT && BROKEN
+	depends on X86 && MTD_PARTITIONS && MTD_CFI_INTELEXT && BROKEN
 	help
 	  MTD map driver for SSV DIL/Net PC Boards "DNP" and "ADNP".
 	  For details, see <http://www.ssv-embedded.de/ssv/pc104/p169.htm>
@@ -552,4 +552,13 @@ config MTD_PISMO
 
 	  When built as a module, it will be called pismo.ko
 
+config MTD_LATCH_ADDR
+        tristate "Latch-assisted Flash Chip Support"
+        depends on MTD_COMPLEX_MAPPINGS
+        help
+          Map driver which allows flashes to be partially physically addressed
+          and have the upper address lines set by a board specific code.
+
+          If compiled as a module, it will be called latch-addr-flash.
+
 endmenu
diff --git a/drivers/mtd/maps/Makefile b/drivers/mtd/maps/Makefile
index c7869c7a6b18..08533bd5cba7 100644
--- a/drivers/mtd/maps/Makefile
+++ b/drivers/mtd/maps/Makefile
@@ -59,3 +59,4 @@ obj-$(CONFIG_MTD_RBTX4939)	+= rbtx4939-flash.o
 obj-$(CONFIG_MTD_VMU)		+= vmu-flash.o
 obj-$(CONFIG_MTD_GPIO_ADDR)	+= gpio-addr-flash.o
 obj-$(CONFIG_MTD_BCM963XX)	+= bcm963xx-flash.o
+obj-$(CONFIG_MTD_LATCH_ADDR)	+= latch-addr-flash.o
diff --git a/drivers/mtd/maps/ceiva.c b/drivers/mtd/maps/ceiva.c
index c09f4f57093e..23f551dc8ca8 100644
--- a/drivers/mtd/maps/ceiva.c
+++ b/drivers/mtd/maps/ceiva.c
@@ -42,7 +42,7 @@
  *
  * Please note:
  *  1. The flash size given should be the largest flash size that can
- *     be accomodated.
+ *     be accommodated.
  *
  *  2. The bus width must defined in clps_setup_flash.
  *
@@ -58,7 +58,7 @@
 #define BOOT_PARTITION_SIZE_KiB       (16)
 #define PARAMS_PARTITION_SIZE_KiB     (8)
 #define KERNEL_PARTITION_SIZE_KiB     (4*128)
-/* Use both remaing portion of first flash, and all of second flash */
+/* Use both remaining portion of first flash, and all of second flash */
 #define ROOT_PARTITION_SIZE_KiB       (3*128) + (8*128)
 
 static struct mtd_partition ceiva_partitions[] = {
@@ -194,16 +194,10 @@ static int __init clps_setup_mtd(struct clps_info *clps, int nr, struct mtd_info
 			 * We detected multiple devices.  Concatenate
 			 * them together.
 			 */
-#ifdef CONFIG_MTD_CONCAT
 			*rmtd = mtd_concat_create(subdev, found,
 						  "clps flash");
 			if (*rmtd == NULL)
 				ret = -ENXIO;
-#else
-			printk(KERN_ERR "clps flash: multiple devices "
-			       "found but MTD concat support disabled.\n");
-			ret = -ENXIO;
-#endif
 		}
 	}
 
diff --git a/drivers/mtd/maps/cfi_flagadm.c b/drivers/mtd/maps/cfi_flagadm.c
index b4ed81611918..f71343cd77cc 100644
--- a/drivers/mtd/maps/cfi_flagadm.c
+++ b/drivers/mtd/maps/cfi_flagadm.c
@@ -33,7 +33,7 @@
 
 
 /* We split the flash chip up into four parts.
- * 1: bootloader firts 128k			(0x00000000 - 0x0001FFFF) size 0x020000
+ * 1: bootloader first 128k			(0x00000000 - 0x0001FFFF) size 0x020000
  * 2: kernel 640k					(0x00020000 - 0x000BFFFF) size 0x0A0000
  * 3: compressed 1536k root ramdisk	(0x000C0000 - 0x0023FFFF) size 0x180000
  * 4: writeable diskpartition (jffs)(0x00240000 - 0x003FFFFF) size 0x1C0000
diff --git a/drivers/mtd/maps/integrator-flash.c b/drivers/mtd/maps/integrator-flash.c
index 2aac41bde8b3..e22ff5adbbf4 100644
--- a/drivers/mtd/maps/integrator-flash.c
+++ b/drivers/mtd/maps/integrator-flash.c
@@ -202,7 +202,6 @@ static int armflash_probe(struct platform_device *dev)
 	if (info->nr_subdev == 1)
 		info->mtd = info->subdev[0].mtd;
 	else if (info->nr_subdev > 1) {
-#ifdef CONFIG_MTD_CONCAT
 		struct mtd_info *cdev[info->nr_subdev];
 
 		/*
@@ -215,11 +214,6 @@ static int armflash_probe(struct platform_device *dev)
 					      dev_name(&dev->dev));
 		if (info->mtd == NULL)
 			err = -ENXIO;
-#else
-		printk(KERN_ERR "armflash: multiple devices found but "
-		       "MTD concat support disabled.\n");
-		err = -ENXIO;
-#endif
 	}
 
 	if (err < 0)
@@ -244,10 +238,8 @@ static int armflash_probe(struct platform_device *dev)
  cleanup:
 	if (info->mtd) {
 		del_mtd_partitions(info->mtd);
-#ifdef CONFIG_MTD_CONCAT
 		if (info->mtd != info->subdev[0].mtd)
 			mtd_concat_destroy(info->mtd);
-#endif
 	}
 	kfree(info->parts);
  subdev_err:
@@ -272,10 +264,8 @@ static int armflash_remove(struct platform_device *dev)
 	if (info) {
 		if (info->mtd) {
 			del_mtd_partitions(info->mtd);
-#ifdef CONFIG_MTD_CONCAT
 			if (info->mtd != info->subdev[0].mtd)
 				mtd_concat_destroy(info->mtd);
-#endif
 		}
 		kfree(info->parts);
 
diff --git a/drivers/mtd/maps/latch-addr-flash.c b/drivers/mtd/maps/latch-addr-flash.c
new file mode 100644
index 000000000000..ee2548085334
--- /dev/null
+++ b/drivers/mtd/maps/latch-addr-flash.c
@@ -0,0 +1,272 @@
+/*
+ * Interface for NOR flash driver whose high address lines are latched
+ *
+ * Copyright © 2000 Nicolas Pitre <nico@cam.org>
+ * Copyright © 2005-2008 Analog Devices Inc.
+ * Copyright © 2008 MontaVista Software, Inc. <source@mvista.com>
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/map.h>
+#include <linux/mtd/partitions.h>
+#include <linux/platform_device.h>
+#include <linux/mtd/latch-addr-flash.h>
+#include <linux/slab.h>
+
+#define DRIVER_NAME "latch-addr-flash"
+
+struct latch_addr_flash_info {
+	struct mtd_info		*mtd;
+	struct map_info		map;
+	struct resource		*res;
+
+	void			(*set_window)(unsigned long offset, void *data);
+	void			*data;
+
+	/* cache; could be found out of res */
+	unsigned long		win_mask;
+
+	int			nr_parts;
+	struct mtd_partition	*parts;
+
+	spinlock_t		lock;
+};
+
+static map_word lf_read(struct map_info *map, unsigned long ofs)
+{
+	struct latch_addr_flash_info *info;
+	map_word datum;
+
+	info = (struct latch_addr_flash_info *)map->map_priv_1;
+
+	spin_lock(&info->lock);
+
+	info->set_window(ofs, info->data);
+	datum = inline_map_read(map, info->win_mask & ofs);
+
+	spin_unlock(&info->lock);
+
+	return datum;
+}
+
+static void lf_write(struct map_info *map, map_word datum, unsigned long ofs)
+{
+	struct latch_addr_flash_info *info;
+
+	info = (struct latch_addr_flash_info *)map->map_priv_1;
+
+	spin_lock(&info->lock);
+
+	info->set_window(ofs, info->data);
+	inline_map_write(map, datum, info->win_mask & ofs);
+
+	spin_unlock(&info->lock);
+}
+
+static void lf_copy_from(struct map_info *map, void *to,
+		unsigned long from, ssize_t len)
+{
+	struct latch_addr_flash_info *info =
+		(struct latch_addr_flash_info *) map->map_priv_1;
+	unsigned n;
+
+	while (len > 0) {
+		n = info->win_mask + 1 - (from & info->win_mask);
+		if (n > len)
+			n = len;
+
+		spin_lock(&info->lock);
+
+		info->set_window(from, info->data);
+		memcpy_fromio(to, map->virt + (from & info->win_mask), n);
+
+		spin_unlock(&info->lock);
+
+		to += n;
+		from += n;
+		len -= n;
+	}
+}
+
+static char *rom_probe_types[] = { "cfi_probe", NULL };
+
+static char *part_probe_types[] = { "cmdlinepart", NULL };
+
+static int latch_addr_flash_remove(struct platform_device *dev)
+{
+	struct latch_addr_flash_info *info;
+	struct latch_addr_flash_data *latch_addr_data;
+
+	info = platform_get_drvdata(dev);
+	if (info == NULL)
+		return 0;
+	platform_set_drvdata(dev, NULL);
+
+	latch_addr_data = dev->dev.platform_data;
+
+	if (info->mtd != NULL) {
+		if (mtd_has_partitions()) {
+			if (info->nr_parts) {
+				del_mtd_partitions(info->mtd);
+				kfree(info->parts);
+			} else if (latch_addr_data->nr_parts) {
+				del_mtd_partitions(info->mtd);
+			} else {
+				del_mtd_device(info->mtd);
+			}
+		} else {
+			del_mtd_device(info->mtd);
+		}
+		map_destroy(info->mtd);
+	}
+
+	if (info->map.virt != NULL)
+		iounmap(info->map.virt);
+
+	if (info->res != NULL)
+		release_mem_region(info->res->start, resource_size(info->res));
+
+	kfree(info);
+
+	if (latch_addr_data->done)
+		latch_addr_data->done(latch_addr_data->data);
+
+	return 0;
+}
+
+static int __devinit latch_addr_flash_probe(struct platform_device *dev)
+{
+	struct latch_addr_flash_data *latch_addr_data;
+	struct latch_addr_flash_info *info;
+	resource_size_t win_base = dev->resource->start;
+	resource_size_t win_size = resource_size(dev->resource);
+	char **probe_type;
+	int chipsel;
+	int err;
+
+	latch_addr_data = dev->dev.platform_data;
+	if (latch_addr_data == NULL)
+		return -ENODEV;
+
+	pr_notice("latch-addr platform flash device: %#llx byte "
+		  "window at %#.8llx\n",
+		  (unsigned long long)win_size, (unsigned long long)win_base);
+
+	chipsel = dev->id;
+
+	if (latch_addr_data->init) {
+		err = latch_addr_data->init(latch_addr_data->data, chipsel);
+		if (err != 0)
+			return err;
+	}
+
+	info = kzalloc(sizeof(struct latch_addr_flash_info), GFP_KERNEL);
+	if (info == NULL) {
+		err = -ENOMEM;
+		goto done;
+	}
+
+	platform_set_drvdata(dev, info);
+
+	info->res = request_mem_region(win_base, win_size, DRIVER_NAME);
+	if (info->res == NULL) {
+		dev_err(&dev->dev, "Could not reserve memory region\n");
+		err = -EBUSY;
+		goto free_info;
+	}
+
+	info->map.name		= DRIVER_NAME;
+	info->map.size		= latch_addr_data->size;
+	info->map.bankwidth	= latch_addr_data->width;
+
+	info->map.phys		= NO_XIP;
+	info->map.virt		= ioremap(win_base, win_size);
+	if (!info->map.virt) {
+		err = -ENOMEM;
+		goto free_res;
+	}
+
+	info->map.map_priv_1	= (unsigned long)info;
+
+	info->map.read		= lf_read;
+	info->map.copy_from	= lf_copy_from;
+	info->map.write		= lf_write;
+	info->set_window	= latch_addr_data->set_window;
+	info->data		= latch_addr_data->data;
+	info->win_mask		= win_size - 1;
+
+	spin_lock_init(&info->lock);
+
+	for (probe_type = rom_probe_types; !info->mtd && *probe_type;
+		probe_type++)
+		info->mtd = do_map_probe(*probe_type, &info->map);
+
+	if (info->mtd == NULL) {
+		dev_err(&dev->dev, "map_probe failed\n");
+		err = -ENODEV;
+		goto iounmap;
+	}
+	info->mtd->owner = THIS_MODULE;
+
+	if (mtd_has_partitions()) {
+
+		err = parse_mtd_partitions(info->mtd,
+					   (const char **)part_probe_types,
+					   &info->parts, 0);
+		if (err > 0) {
+			add_mtd_partitions(info->mtd, info->parts, err);
+			return 0;
+		}
+		if (latch_addr_data->nr_parts) {
+			pr_notice("Using latch-addr-flash partition information\n");
+			add_mtd_partitions(info->mtd, latch_addr_data->parts,
+					latch_addr_data->nr_parts);
+			return 0;
+		}
+	}
+	add_mtd_device(info->mtd);
+	return 0;
+
+iounmap:
+	iounmap(info->map.virt);
+free_res:
+	release_mem_region(info->res->start, resource_size(info->res));
+free_info:
+	kfree(info);
+done:
+	if (latch_addr_data->done)
+		latch_addr_data->done(latch_addr_data->data);
+	return err;
+}
+
+static struct platform_driver latch_addr_flash_driver = {
+	.probe		= latch_addr_flash_probe,
+	.remove		= __devexit_p(latch_addr_flash_remove),
+	.driver		= {
+		.name	= DRIVER_NAME,
+	},
+};
+
+static int __init latch_addr_flash_init(void)
+{
+	return platform_driver_register(&latch_addr_flash_driver);
+}
+module_init(latch_addr_flash_init);
+
+static void __exit latch_addr_flash_exit(void)
+{
+	platform_driver_unregister(&latch_addr_flash_driver);
+}
+module_exit(latch_addr_flash_exit);
+
+MODULE_AUTHOR("David Griego <dgriego@mvista.com>");
+MODULE_DESCRIPTION("MTD map driver for flashes addressed physically with upper "
+		"address lines being set board specifically");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/mtd/maps/pcmciamtd.c b/drivers/mtd/maps/pcmciamtd.c
index 917022948399..6799e75d74e0 100644
--- a/drivers/mtd/maps/pcmciamtd.c
+++ b/drivers/mtd/maps/pcmciamtd.c
@@ -497,7 +497,7 @@ static int pcmciamtd_config(struct pcmcia_device *link)
 		dev->pcmcia_map.set_vpp = pcmciamtd_set_vpp;
 
 	/* Request a memory window for PCMCIA. Some architeures can map windows
-	 * upto the maximum that PCMCIA can support (64MiB) - this is ideal and
+	 * up to the maximum that PCMCIA can support (64MiB) - this is ideal and
 	 * we aim for a window the size of the whole card - otherwise we try
 	 * smaller windows until we succeed
 	 */
diff --git a/drivers/mtd/maps/physmap.c b/drivers/mtd/maps/physmap.c
index 4c18b98a3110..7522df4f71f1 100644
--- a/drivers/mtd/maps/physmap.c
+++ b/drivers/mtd/maps/physmap.c
@@ -59,10 +59,8 @@ static int physmap_flash_remove(struct platform_device *dev)
 #else
 		del_mtd_device(info->cmtd);
 #endif
-#ifdef CONFIG_MTD_CONCAT
 		if (info->cmtd != info->mtd[0])
 			mtd_concat_destroy(info->cmtd);
-#endif
 	}
 
 	for (i = 0; i < MAX_RESOURCES; i++) {
@@ -159,15 +157,9 @@ static int physmap_flash_probe(struct platform_device *dev)
 		/*
 		 * We detected multiple devices. Concatenate them together.
 		 */
-#ifdef CONFIG_MTD_CONCAT
 		info->cmtd = mtd_concat_create(info->mtd, devices_found, dev_name(&dev->dev));
 		if (info->cmtd == NULL)
 			err = -ENXIO;
-#else
-		printk(KERN_ERR "physmap-flash: multiple devices "
-		       "found but MTD concat support disabled.\n");
-		err = -ENXIO;
-#endif
 	}
 	if (err)
 		goto err_out;
diff --git a/drivers/mtd/maps/physmap_of.c b/drivers/mtd/maps/physmap_of.c
index 3db0cb083d31..bd483f0c57e1 100644
--- a/drivers/mtd/maps/physmap_of.c
+++ b/drivers/mtd/maps/physmap_of.c
@@ -104,12 +104,10 @@ static int of_flash_remove(struct platform_device *dev)
 		return 0;
 	dev_set_drvdata(&dev->dev, NULL);
 
-#ifdef CONFIG_MTD_CONCAT
 	if (info->cmtd != info->list[0].mtd) {
 		del_mtd_device(info->cmtd);
 		mtd_concat_destroy(info->cmtd);
 	}
-#endif
 
 	if (info->cmtd) {
 		if (OF_FLASH_PARTS(info)) {
@@ -337,16 +335,10 @@ static int __devinit of_flash_probe(struct platform_device *dev)
 		/*
 		 * We detected multiple devices. Concatenate them together.
 		 */
-#ifdef CONFIG_MTD_CONCAT
 		info->cmtd = mtd_concat_create(mtd_list, info->list_size,
 					       dev_name(&dev->dev));
 		if (info->cmtd == NULL)
 			err = -ENXIO;
-#else
-		printk(KERN_ERR "physmap_of: multiple devices "
-		       "found but MTD concat support disabled.\n");
-		err = -ENXIO;
-#endif
 	}
 	if (err)
 		goto err_out;
diff --git a/drivers/mtd/maps/pmcmsp-flash.c b/drivers/mtd/maps/pmcmsp-flash.c
index acb13fa5001c..64aea6acd48e 100644
--- a/drivers/mtd/maps/pmcmsp-flash.c
+++ b/drivers/mtd/maps/pmcmsp-flash.c
@@ -3,7 +3,7 @@
  * Config with both CFI and JEDEC device support.
  *
  * Basically physmap.c with the addition of partitions and
- * an array of mapping info to accomodate more than one flash type per board.
+ * an array of mapping info to accommodate more than one flash type per board.
  *
  * Copyright 2005-2007 PMC-Sierra, Inc.
  *
diff --git a/drivers/mtd/maps/sa1100-flash.c b/drivers/mtd/maps/sa1100-flash.c
index f3af87e08ecd..da875908ea8e 100644
--- a/drivers/mtd/maps/sa1100-flash.c
+++ b/drivers/mtd/maps/sa1100-flash.c
@@ -232,10 +232,8 @@ static void sa1100_destroy(struct sa_info *info, struct flash_platform_data *pla
 		else
 			del_mtd_partitions(info->mtd);
 #endif
-#ifdef CONFIG_MTD_CONCAT
 		if (info->mtd != info->subdev[0].mtd)
 			mtd_concat_destroy(info->mtd);
-#endif
 	}
 
 	kfree(info->parts);
@@ -321,7 +319,6 @@ sa1100_setup_mtd(struct platform_device *pdev, struct flash_platform_data *plat)
 		info->mtd = info->subdev[0].mtd;
 		ret = 0;
 	} else if (info->num_subdev > 1) {
-#ifdef CONFIG_MTD_CONCAT
 		struct mtd_info *cdev[nr];
 		/*
 		 * We detected multiple devices.  Concatenate them together.
@@ -333,11 +330,6 @@ sa1100_setup_mtd(struct platform_device *pdev, struct flash_platform_data *plat)
 					      plat->name);
 		if (info->mtd == NULL)
 			ret = -ENXIO;
-#else
-		printk(KERN_ERR "SA1100 flash: multiple devices "
-		       "found but MTD concat support disabled.\n");
-		ret = -ENXIO;
-#endif
 	}
 
 	if (ret == 0)
diff --git a/drivers/mtd/maps/sc520cdp.c b/drivers/mtd/maps/sc520cdp.c
index 85c1e56309ec..4d8aaaf4bb76 100644
--- a/drivers/mtd/maps/sc520cdp.c
+++ b/drivers/mtd/maps/sc520cdp.c
@@ -197,7 +197,7 @@ static void sc520cdp_setup_par(void)
 	}
 
 	/*
-	** Find the PARxx registers that are reponsible for activating
+	** Find the PARxx registers that are responsible for activating
 	** ROMCS0, ROMCS1 and BOOTCS. Reprogram each of these with a
 	** new value from the table.
 	*/
diff --git a/drivers/mtd/maps/tqm8xxl.c b/drivers/mtd/maps/tqm8xxl.c
index c08e140d40ed..0718dfb3ee64 100644
--- a/drivers/mtd/maps/tqm8xxl.c
+++ b/drivers/mtd/maps/tqm8xxl.c
@@ -63,7 +63,7 @@ static void __iomem *start_scan_addr;
  */
 
 #ifdef CONFIG_MTD_PARTITIONS
-/* Currently, TQM8xxL has upto 8MiB flash */
+/* Currently, TQM8xxL has up to 8MiB flash */
 static unsigned long tqm8xxl_max_flash_size = 0x00800000;
 
 /* partition definition for first flash bank
diff --git a/drivers/mtd/maps/ts5500_flash.c b/drivers/mtd/maps/ts5500_flash.c
index e2147bf11c88..e02dfa9d4ddd 100644
--- a/drivers/mtd/maps/ts5500_flash.c
+++ b/drivers/mtd/maps/ts5500_flash.c
@@ -94,7 +94,6 @@ static int __init init_ts5500_map(void)
 	return 0;
 
 err1:
-	map_destroy(mymtd);
 	iounmap(ts5500_map.virt);
 err2:
 	return rc;
diff --git a/drivers/mtd/mtd_blkdevs.c b/drivers/mtd/mtd_blkdevs.c
index e0a2373bf0e2..a534e1f0c348 100644
--- a/drivers/mtd/mtd_blkdevs.c
+++ b/drivers/mtd/mtd_blkdevs.c
@@ -40,7 +40,7 @@
 static LIST_HEAD(blktrans_majors);
 static DEFINE_MUTEX(blktrans_ref_mutex);
 
-void blktrans_dev_release(struct kref *kref)
+static void blktrans_dev_release(struct kref *kref)
 {
 	struct mtd_blktrans_dev *dev =
 		container_of(kref, struct mtd_blktrans_dev, ref);
@@ -67,7 +67,7 @@ unlock:
 	return dev;
 }
 
-void blktrans_dev_put(struct mtd_blktrans_dev *dev)
+static void blktrans_dev_put(struct mtd_blktrans_dev *dev)
 {
 	mutex_lock(&blktrans_ref_mutex);
 	kref_put(&dev->ref, blktrans_dev_release);
@@ -119,18 +119,43 @@ static int do_blktrans_request(struct mtd_blktrans_ops *tr,
 	}
 }
 
+int mtd_blktrans_cease_background(struct mtd_blktrans_dev *dev)
+{
+	if (kthread_should_stop())
+		return 1;
+
+	return dev->bg_stop;
+}
+EXPORT_SYMBOL_GPL(mtd_blktrans_cease_background);
+
 static int mtd_blktrans_thread(void *arg)
 {
 	struct mtd_blktrans_dev *dev = arg;
+	struct mtd_blktrans_ops *tr = dev->tr;
 	struct request_queue *rq = dev->rq;
 	struct request *req = NULL;
+	int background_done = 0;
 
 	spin_lock_irq(rq->queue_lock);
 
 	while (!kthread_should_stop()) {
 		int res;
 
+		dev->bg_stop = false;
 		if (!req && !(req = blk_fetch_request(rq))) {
+			if (tr->background && !background_done) {
+				spin_unlock_irq(rq->queue_lock);
+				mutex_lock(&dev->lock);
+				tr->background(dev);
+				mutex_unlock(&dev->lock);
+				spin_lock_irq(rq->queue_lock);
+				/*
+				 * Do background processing just once per idle
+				 * period.
+				 */
+				background_done = !dev->bg_stop;
+				continue;
+			}
 			set_current_state(TASK_INTERRUPTIBLE);
 
 			if (kthread_should_stop())
@@ -152,6 +177,8 @@ static int mtd_blktrans_thread(void *arg)
 
 		if (!__blk_end_request_cur(req, res))
 			req = NULL;
+
+		background_done = 0;
 	}
 
 	if (req)
@@ -172,8 +199,10 @@ static void mtd_blktrans_request(struct request_queue *rq)
 	if (!dev)
 		while ((req = blk_fetch_request(rq)) != NULL)
 			__blk_end_request_all(req, -ENODEV);
-	else
+	else {
+		dev->bg_stop = true;
 		wake_up_process(dev->thread);
+	}
 }
 
 static int blktrans_open(struct block_device *bdev, fmode_t mode)
@@ -379,9 +408,10 @@ int add_mtd_blktrans_dev(struct mtd_blktrans_dev *new)
 	new->rq->queuedata = new;
 	blk_queue_logical_block_size(new->rq, tr->blksize);
 
-	if (tr->discard)
-		queue_flag_set_unlocked(QUEUE_FLAG_DISCARD,
-					new->rq);
+	if (tr->discard) {
+		queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, new->rq);
+		new->rq->limits.max_discard_sectors = UINT_MAX;
+	}
 
 	gd->queue = new->rq;
 
diff --git a/drivers/mtd/mtdblock.c b/drivers/mtd/mtdblock.c
index 1e74ad961040..3326615ad66b 100644
--- a/drivers/mtd/mtdblock.c
+++ b/drivers/mtd/mtdblock.c
@@ -129,7 +129,7 @@ static int write_cached_data (struct mtdblk_dev *mtdblk)
 		return ret;
 
 	/*
-	 * Here we could argubly set the cache state to STATE_CLEAN.
+	 * Here we could arguably set the cache state to STATE_CLEAN.
 	 * However this could lead to inconsistency since we will not
 	 * be notified if this content is altered on the flash by other
 	 * means.  Let's declare it empty and leave buffering tasks to
diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c
index 145b3d0dc0db..4c36ef66a46b 100644
--- a/drivers/mtd/mtdchar.c
+++ b/drivers/mtd/mtdchar.c
@@ -234,7 +234,7 @@ static ssize_t mtd_read(struct file *file, char __user *buf, size_t count,loff_t
 		 * the data. For our userspace tools it is important
 		 * to dump areas with ecc errors !
 		 * For kernel internal usage it also might return -EUCLEAN
-		 * to signal the caller that a bitflip has occured and has
+		 * to signal the caller that a bitflip has occurred and has
 		 * been corrected by the ECC algorithm.
 		 * Userspace software which accesses NAND this way
 		 * must be aware of the fact that it deals with NAND
diff --git a/drivers/mtd/mtdconcat.c b/drivers/mtd/mtdconcat.c
index 5f5777bd3f75..5060e608ea5d 100644
--- a/drivers/mtd/mtdconcat.c
+++ b/drivers/mtd/mtdconcat.c
@@ -750,6 +750,7 @@ struct mtd_info *mtd_concat_create(struct mtd_info *subdev[],	/* subdevices to c
 	struct mtd_concat *concat;
 	uint32_t max_erasesize, curr_erasesize;
 	int num_erase_region;
+	int max_writebufsize = 0;
 
 	printk(KERN_NOTICE "Concatenating MTD devices:\n");
 	for (i = 0; i < num_devs; i++)
@@ -776,7 +777,12 @@ struct mtd_info *mtd_concat_create(struct mtd_info *subdev[],	/* subdevices to c
 	concat->mtd.size = subdev[0]->size;
 	concat->mtd.erasesize = subdev[0]->erasesize;
 	concat->mtd.writesize = subdev[0]->writesize;
-	concat->mtd.writebufsize = subdev[0]->writebufsize;
+
+	for (i = 0; i < num_devs; i++)
+		if (max_writebufsize < subdev[i]->writebufsize)
+			max_writebufsize = subdev[i]->writebufsize;
+	concat->mtd.writebufsize = max_writebufsize;
+
 	concat->mtd.subpage_sft = subdev[0]->subpage_sft;
 	concat->mtd.oobsize = subdev[0]->oobsize;
 	concat->mtd.oobavail = subdev[0]->oobavail;
diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c
index 527cebf58da4..da69bc8a5a7d 100644
--- a/drivers/mtd/mtdcore.c
+++ b/drivers/mtd/mtdcore.c
@@ -43,7 +43,7 @@
  * backing device capabilities for non-mappable devices (such as NAND flash)
  * - permits private mappings, copies are taken of the data
  */
-struct backing_dev_info mtd_bdi_unmappable = {
+static struct backing_dev_info mtd_bdi_unmappable = {
 	.capabilities	= BDI_CAP_MAP_COPY,
 };
 
@@ -52,7 +52,7 @@ struct backing_dev_info mtd_bdi_unmappable = {
  * - permits private mappings, copies are taken of the data
  * - permits non-writable shared mappings
  */
-struct backing_dev_info mtd_bdi_ro_mappable = {
+static struct backing_dev_info mtd_bdi_ro_mappable = {
 	.capabilities	= (BDI_CAP_MAP_COPY | BDI_CAP_MAP_DIRECT |
 			   BDI_CAP_EXEC_MAP | BDI_CAP_READ_MAP),
 };
@@ -62,7 +62,7 @@ struct backing_dev_info mtd_bdi_ro_mappable = {
  * - permits private mappings, copies are taken of the data
  * - permits non-writable shared mappings
  */
-struct backing_dev_info mtd_bdi_rw_mappable = {
+static struct backing_dev_info mtd_bdi_rw_mappable = {
 	.capabilities	= (BDI_CAP_MAP_COPY | BDI_CAP_MAP_DIRECT |
 			   BDI_CAP_EXEC_MAP | BDI_CAP_READ_MAP |
 			   BDI_CAP_WRITE_MAP),
diff --git a/drivers/mtd/mtdswap.c b/drivers/mtd/mtdswap.c
new file mode 100644
index 000000000000..237913c5c92c
--- /dev/null
+++ b/drivers/mtd/mtdswap.c
@@ -0,0 +1,1587 @@
+/*
+ * Swap block device support for MTDs
+ * Turns an MTD device into a swap device with block wear leveling
+ *
+ * Copyright © 2007,2011 Nokia Corporation. All rights reserved.
+ *
+ * Authors: Jarkko Lavinen <jarkko.lavinen@nokia.com>
+ *
+ * Based on Richard Purdie's earlier implementation in 2007. Background
+ * support and lock-less operation written by Adrian Hunter.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/blktrans.h>
+#include <linux/rbtree.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+#include <linux/genhd.h>
+#include <linux/swap.h>
+#include <linux/debugfs.h>
+#include <linux/seq_file.h>
+#include <linux/device.h>
+#include <linux/math64.h>
+
+#define MTDSWAP_PREFIX "mtdswap"
+
+/*
+ * The number of free eraseblocks when GC should stop
+ */
+#define CLEAN_BLOCK_THRESHOLD	20
+
+/*
+ * Number of free eraseblocks below which GC can also collect low frag
+ * blocks.
+ */
+#define LOW_FRAG_GC_TRESHOLD	5
+
+/*
+ * Wear level cost amortization. We want to do wear leveling on the background
+ * without disturbing gc too much. This is made by defining max GC frequency.
+ * Frequency value 6 means 1/6 of the GC passes will pick an erase block based
+ * on the biggest wear difference rather than the biggest dirtiness.
+ *
+ * The lower freq2 should be chosen so that it makes sure the maximum erase
+ * difference will decrease even if a malicious application is deliberately
+ * trying to make erase differences large.
+ */
+#define MAX_ERASE_DIFF		4000
+#define COLLECT_NONDIRTY_BASE	MAX_ERASE_DIFF
+#define COLLECT_NONDIRTY_FREQ1	6
+#define COLLECT_NONDIRTY_FREQ2	4
+
+#define PAGE_UNDEF		UINT_MAX
+#define BLOCK_UNDEF		UINT_MAX
+#define BLOCK_ERROR		(UINT_MAX - 1)
+#define BLOCK_MAX		(UINT_MAX - 2)
+
+#define EBLOCK_BAD		(1 << 0)
+#define EBLOCK_NOMAGIC		(1 << 1)
+#define EBLOCK_BITFLIP		(1 << 2)
+#define EBLOCK_FAILED		(1 << 3)
+#define EBLOCK_READERR		(1 << 4)
+#define EBLOCK_IDX_SHIFT	5
+
+struct swap_eb {
+	struct rb_node rb;
+	struct rb_root *root;
+
+	unsigned int flags;
+	unsigned int active_count;
+	unsigned int erase_count;
+	unsigned int pad;		/* speeds up pointer decremtnt */
+};
+
+#define MTDSWAP_ECNT_MIN(rbroot) (rb_entry(rb_first(rbroot), struct swap_eb, \
+				rb)->erase_count)
+#define MTDSWAP_ECNT_MAX(rbroot) (rb_entry(rb_last(rbroot), struct swap_eb, \
+				rb)->erase_count)
+
+struct mtdswap_tree {
+	struct rb_root root;
+	unsigned int count;
+};
+
+enum {
+	MTDSWAP_CLEAN,
+	MTDSWAP_USED,
+	MTDSWAP_LOWFRAG,
+	MTDSWAP_HIFRAG,
+	MTDSWAP_DIRTY,
+	MTDSWAP_BITFLIP,
+	MTDSWAP_FAILING,
+	MTDSWAP_TREE_CNT,
+};
+
+struct mtdswap_dev {
+	struct mtd_blktrans_dev *mbd_dev;
+	struct mtd_info *mtd;
+	struct device *dev;
+
+	unsigned int *page_data;
+	unsigned int *revmap;
+
+	unsigned int eblks;
+	unsigned int spare_eblks;
+	unsigned int pages_per_eblk;
+	unsigned int max_erase_count;
+	struct swap_eb *eb_data;
+
+	struct mtdswap_tree trees[MTDSWAP_TREE_CNT];
+
+	unsigned long long sect_read_count;
+	unsigned long long sect_write_count;
+	unsigned long long mtd_write_count;
+	unsigned long long mtd_read_count;
+	unsigned long long discard_count;
+	unsigned long long discard_page_count;
+
+	unsigned int curr_write_pos;
+	struct swap_eb *curr_write;
+
+	char *page_buf;
+	char *oob_buf;
+
+	struct dentry *debugfs_root;
+};
+
+struct mtdswap_oobdata {
+	__le16 magic;
+	__le32 count;
+} __attribute__((packed));
+
+#define MTDSWAP_MAGIC_CLEAN	0x2095
+#define MTDSWAP_MAGIC_DIRTY	(MTDSWAP_MAGIC_CLEAN + 1)
+#define MTDSWAP_TYPE_CLEAN	0
+#define MTDSWAP_TYPE_DIRTY	1
+#define MTDSWAP_OOBSIZE		sizeof(struct mtdswap_oobdata)
+
+#define MTDSWAP_ERASE_RETRIES	3 /* Before marking erase block bad */
+#define MTDSWAP_IO_RETRIES	3
+
+enum {
+	MTDSWAP_SCANNED_CLEAN,
+	MTDSWAP_SCANNED_DIRTY,
+	MTDSWAP_SCANNED_BITFLIP,
+	MTDSWAP_SCANNED_BAD,
+};
+
+/*
+ * In the worst case mtdswap_writesect() has allocated the last clean
+ * page from the current block and is then pre-empted by the GC
+ * thread. The thread can consume a full erase block when moving a
+ * block.
+ */
+#define MIN_SPARE_EBLOCKS	2
+#define MIN_ERASE_BLOCKS	(MIN_SPARE_EBLOCKS + 1)
+
+#define TREE_ROOT(d, name) (&d->trees[MTDSWAP_ ## name].root)
+#define TREE_EMPTY(d, name) (TREE_ROOT(d, name)->rb_node == NULL)
+#define TREE_NONEMPTY(d, name) (!TREE_EMPTY(d, name))
+#define TREE_COUNT(d, name) (d->trees[MTDSWAP_ ## name].count)
+
+#define MTDSWAP_MBD_TO_MTDSWAP(dev) ((struct mtdswap_dev *)dev->priv)
+
+static char partitions[128] = "";
+module_param_string(partitions, partitions, sizeof(partitions), 0444);
+MODULE_PARM_DESC(partitions, "MTD partition numbers to use as swap "
+		"partitions=\"1,3,5\"");
+
+static unsigned int spare_eblocks = 10;
+module_param(spare_eblocks, uint, 0444);
+MODULE_PARM_DESC(spare_eblocks, "Percentage of spare erase blocks for "
+		"garbage collection (default 10%)");
+
+static bool header; /* false */
+module_param(header, bool, 0444);
+MODULE_PARM_DESC(header,
+		"Include builtin swap header (default 0, without header)");
+
+static int mtdswap_gc(struct mtdswap_dev *d, unsigned int background);
+
+static loff_t mtdswap_eb_offset(struct mtdswap_dev *d, struct swap_eb *eb)
+{
+	return (loff_t)(eb - d->eb_data) * d->mtd->erasesize;
+}
+
+static void mtdswap_eb_detach(struct mtdswap_dev *d, struct swap_eb *eb)
+{
+	unsigned int oldidx;
+	struct mtdswap_tree *tp;
+
+	if (eb->root) {
+		tp = container_of(eb->root, struct mtdswap_tree, root);
+		oldidx = tp - &d->trees[0];
+
+		d->trees[oldidx].count--;
+		rb_erase(&eb->rb, eb->root);
+	}
+}
+
+static void __mtdswap_rb_add(struct rb_root *root, struct swap_eb *eb)
+{
+	struct rb_node **p, *parent = NULL;
+	struct swap_eb *cur;
+
+	p = &root->rb_node;
+	while (*p) {
+		parent = *p;
+		cur = rb_entry(parent, struct swap_eb, rb);
+		if (eb->erase_count > cur->erase_count)
+			p = &(*p)->rb_right;
+		else
+			p = &(*p)->rb_left;
+	}
+
+	rb_link_node(&eb->rb, parent, p);
+	rb_insert_color(&eb->rb, root);
+}
+
+static void mtdswap_rb_add(struct mtdswap_dev *d, struct swap_eb *eb, int idx)
+{
+	struct rb_root *root;
+
+	if (eb->root == &d->trees[idx].root)
+		return;
+
+	mtdswap_eb_detach(d, eb);
+	root = &d->trees[idx].root;
+	__mtdswap_rb_add(root, eb);
+	eb->root = root;
+	d->trees[idx].count++;
+}
+
+static struct rb_node *mtdswap_rb_index(struct rb_root *root, unsigned int idx)
+{
+	struct rb_node *p;
+	unsigned int i;
+
+	p = rb_first(root);
+	i = 0;
+	while (i < idx && p) {
+		p = rb_next(p);
+		i++;
+	}
+
+	return p;
+}
+
+static int mtdswap_handle_badblock(struct mtdswap_dev *d, struct swap_eb *eb)
+{
+	int ret;
+	loff_t offset;
+
+	d->spare_eblks--;
+	eb->flags |= EBLOCK_BAD;
+	mtdswap_eb_detach(d, eb);
+	eb->root = NULL;
+
+	/* badblocks not supported */
+	if (!d->mtd->block_markbad)
+		return 1;
+
+	offset = mtdswap_eb_offset(d, eb);
+	dev_warn(d->dev, "Marking bad block at %08llx\n", offset);
+	ret = d->mtd->block_markbad(d->mtd, offset);
+
+	if (ret) {
+		dev_warn(d->dev, "Mark block bad failed for block at %08llx "
+			"error %d\n", offset, ret);
+		return ret;
+	}
+
+	return 1;
+
+}
+
+static int mtdswap_handle_write_error(struct mtdswap_dev *d, struct swap_eb *eb)
+{
+	unsigned int marked = eb->flags & EBLOCK_FAILED;
+	struct swap_eb *curr_write = d->curr_write;
+
+	eb->flags |= EBLOCK_FAILED;
+	if (curr_write == eb) {
+		d->curr_write = NULL;
+
+		if (!marked && d->curr_write_pos != 0) {
+			mtdswap_rb_add(d, eb, MTDSWAP_FAILING);
+			return 0;
+		}
+	}
+
+	return mtdswap_handle_badblock(d, eb);
+}
+
+static int mtdswap_read_oob(struct mtdswap_dev *d, loff_t from,
+			struct mtd_oob_ops *ops)
+{
+	int ret = d->mtd->read_oob(d->mtd, from, ops);
+
+	if (ret == -EUCLEAN)
+		return ret;
+
+	if (ret) {
+		dev_warn(d->dev, "Read OOB failed %d for block at %08llx\n",
+			ret, from);
+		return ret;
+	}
+
+	if (ops->oobretlen < ops->ooblen) {
+		dev_warn(d->dev, "Read OOB return short read (%zd bytes not "
+			"%zd) for block at %08llx\n",
+			ops->oobretlen, ops->ooblen, from);
+		return -EIO;
+	}
+
+	return 0;
+}
+
+static int mtdswap_read_markers(struct mtdswap_dev *d, struct swap_eb *eb)
+{
+	struct mtdswap_oobdata *data, *data2;
+	int ret;
+	loff_t offset;
+	struct mtd_oob_ops ops;
+
+	offset = mtdswap_eb_offset(d, eb);
+
+	/* Check first if the block is bad. */
+	if (d->mtd->block_isbad && d->mtd->block_isbad(d->mtd, offset))
+		return MTDSWAP_SCANNED_BAD;
+
+	ops.ooblen = 2 * d->mtd->ecclayout->oobavail;
+	ops.oobbuf = d->oob_buf;
+	ops.ooboffs = 0;
+	ops.datbuf = NULL;
+	ops.mode = MTD_OOB_AUTO;
+
+	ret = mtdswap_read_oob(d, offset, &ops);
+
+	if (ret && ret != -EUCLEAN)
+		return ret;
+
+	data = (struct mtdswap_oobdata *)d->oob_buf;
+	data2 = (struct mtdswap_oobdata *)
+		(d->oob_buf + d->mtd->ecclayout->oobavail);
+
+	if (le16_to_cpu(data->magic) == MTDSWAP_MAGIC_CLEAN) {
+		eb->erase_count = le32_to_cpu(data->count);
+		if (ret == -EUCLEAN)
+			ret = MTDSWAP_SCANNED_BITFLIP;
+		else {
+			if (le16_to_cpu(data2->magic) == MTDSWAP_MAGIC_DIRTY)
+				ret = MTDSWAP_SCANNED_DIRTY;
+			else
+				ret = MTDSWAP_SCANNED_CLEAN;
+		}
+	} else {
+		eb->flags |= EBLOCK_NOMAGIC;
+		ret = MTDSWAP_SCANNED_DIRTY;
+	}
+
+	return ret;
+}
+
+static int mtdswap_write_marker(struct mtdswap_dev *d, struct swap_eb *eb,
+				u16 marker)
+{
+	struct mtdswap_oobdata n;
+	int ret;
+	loff_t offset;
+	struct mtd_oob_ops ops;
+
+	ops.ooboffs = 0;
+	ops.oobbuf = (uint8_t *)&n;
+	ops.mode = MTD_OOB_AUTO;
+	ops.datbuf = NULL;
+
+	if (marker == MTDSWAP_TYPE_CLEAN) {
+		n.magic = cpu_to_le16(MTDSWAP_MAGIC_CLEAN);
+		n.count = cpu_to_le32(eb->erase_count);
+		ops.ooblen = MTDSWAP_OOBSIZE;
+		offset = mtdswap_eb_offset(d, eb);
+	} else {
+		n.magic = cpu_to_le16(MTDSWAP_MAGIC_DIRTY);
+		ops.ooblen = sizeof(n.magic);
+		offset = mtdswap_eb_offset(d, eb) + d->mtd->writesize;
+	}
+
+	ret = d->mtd->write_oob(d->mtd, offset , &ops);
+
+	if (ret) {
+		dev_warn(d->dev, "Write OOB failed for block at %08llx "
+			"error %d\n", offset, ret);
+		if (ret == -EIO || ret == -EBADMSG)
+			mtdswap_handle_write_error(d, eb);
+		return ret;
+	}
+
+	if (ops.oobretlen != ops.ooblen) {
+		dev_warn(d->dev, "Short OOB write for block at %08llx: "
+			"%zd not %zd\n",
+			offset, ops.oobretlen, ops.ooblen);
+		return ret;
+	}
+
+	return 0;
+}
+
+/*
+ * Are there any erase blocks without MAGIC_CLEAN header, presumably
+ * because power was cut off after erase but before header write? We
+ * need to guestimate the erase count.
+ */
+static void mtdswap_check_counts(struct mtdswap_dev *d)
+{
+	struct rb_root hist_root = RB_ROOT;
+	struct rb_node *medrb;
+	struct swap_eb *eb;
+	unsigned int i, cnt, median;
+
+	cnt = 0;
+	for (i = 0; i < d->eblks; i++) {
+		eb = d->eb_data + i;
+
+		if (eb->flags & (EBLOCK_NOMAGIC | EBLOCK_BAD | EBLOCK_READERR))
+			continue;
+
+		__mtdswap_rb_add(&hist_root, eb);
+		cnt++;
+	}
+
+	if (cnt == 0)
+		return;
+
+	medrb = mtdswap_rb_index(&hist_root, cnt / 2);
+	median = rb_entry(medrb, struct swap_eb, rb)->erase_count;
+
+	d->max_erase_count = MTDSWAP_ECNT_MAX(&hist_root);
+
+	for (i = 0; i < d->eblks; i++) {
+		eb = d->eb_data + i;
+
+		if (eb->flags & (EBLOCK_NOMAGIC | EBLOCK_READERR))
+			eb->erase_count = median;
+
+		if (eb->flags & (EBLOCK_NOMAGIC | EBLOCK_BAD | EBLOCK_READERR))
+			continue;
+
+		rb_erase(&eb->rb, &hist_root);
+	}
+}
+
+static void mtdswap_scan_eblks(struct mtdswap_dev *d)
+{
+	int status;
+	unsigned int i, idx;
+	struct swap_eb *eb;
+
+	for (i = 0; i < d->eblks; i++) {
+		eb = d->eb_data + i;
+
+		status = mtdswap_read_markers(d, eb);
+		if (status < 0)
+			eb->flags |= EBLOCK_READERR;
+		else if (status == MTDSWAP_SCANNED_BAD) {
+			eb->flags |= EBLOCK_BAD;
+			continue;
+		}
+
+		switch (status) {
+		case MTDSWAP_SCANNED_CLEAN:
+			idx = MTDSWAP_CLEAN;
+			break;
+		case MTDSWAP_SCANNED_DIRTY:
+		case MTDSWAP_SCANNED_BITFLIP:
+			idx = MTDSWAP_DIRTY;
+			break;
+		default:
+			idx = MTDSWAP_FAILING;
+		}
+
+		eb->flags |= (idx << EBLOCK_IDX_SHIFT);
+	}
+
+	mtdswap_check_counts(d);
+
+	for (i = 0; i < d->eblks; i++) {
+		eb = d->eb_data + i;
+
+		if (eb->flags & EBLOCK_BAD)
+			continue;
+
+		idx = eb->flags >> EBLOCK_IDX_SHIFT;
+		mtdswap_rb_add(d, eb, idx);
+	}
+}
+
+/*
+ * Place eblk into a tree corresponding to its number of active blocks
+ * it contains.
+ */
+static void mtdswap_store_eb(struct mtdswap_dev *d, struct swap_eb *eb)
+{
+	unsigned int weight = eb->active_count;
+	unsigned int maxweight = d->pages_per_eblk;
+
+	if (eb == d->curr_write)
+		return;
+
+	if (eb->flags & EBLOCK_BITFLIP)
+		mtdswap_rb_add(d, eb, MTDSWAP_BITFLIP);
+	else if (eb->flags & (EBLOCK_READERR | EBLOCK_FAILED))
+		mtdswap_rb_add(d, eb, MTDSWAP_FAILING);
+	if (weight == maxweight)
+		mtdswap_rb_add(d, eb, MTDSWAP_USED);
+	else if (weight == 0)
+		mtdswap_rb_add(d, eb, MTDSWAP_DIRTY);
+	else if (weight > (maxweight/2))
+		mtdswap_rb_add(d, eb, MTDSWAP_LOWFRAG);
+	else
+		mtdswap_rb_add(d, eb, MTDSWAP_HIFRAG);
+}
+
+
+static void mtdswap_erase_callback(struct erase_info *done)
+{
+	wait_queue_head_t *wait_q = (wait_queue_head_t *)done->priv;
+	wake_up(wait_q);
+}
+
+static int mtdswap_erase_block(struct mtdswap_dev *d, struct swap_eb *eb)
+{
+	struct mtd_info *mtd = d->mtd;
+	struct erase_info erase;
+	wait_queue_head_t wq;
+	unsigned int retries = 0;
+	int ret;
+
+	eb->erase_count++;
+	if (eb->erase_count > d->max_erase_count)
+		d->max_erase_count = eb->erase_count;
+
+retry:
+	init_waitqueue_head(&wq);
+	memset(&erase, 0, sizeof(struct erase_info));
+
+	erase.mtd	= mtd;
+	erase.callback	= mtdswap_erase_callback;
+	erase.addr	= mtdswap_eb_offset(d, eb);
+	erase.len	= mtd->erasesize;
+	erase.priv	= (u_long)&wq;
+
+	ret = mtd->erase(mtd, &erase);
+	if (ret) {
+		if (retries++ < MTDSWAP_ERASE_RETRIES) {
+			dev_warn(d->dev,
+				"erase of erase block %#llx on %s failed",
+				erase.addr, mtd->name);
+			yield();
+			goto retry;
+		}
+
+		dev_err(d->dev, "Cannot erase erase block %#llx on %s\n",
+			erase.addr, mtd->name);
+
+		mtdswap_handle_badblock(d, eb);
+		return -EIO;
+	}
+
+	ret = wait_event_interruptible(wq, erase.state == MTD_ERASE_DONE ||
+					   erase.state == MTD_ERASE_FAILED);
+	if (ret) {
+		dev_err(d->dev, "Interrupted erase block %#llx erassure on %s",
+			erase.addr, mtd->name);
+		return -EINTR;
+	}
+
+	if (erase.state == MTD_ERASE_FAILED) {
+		if (retries++ < MTDSWAP_ERASE_RETRIES) {
+			dev_warn(d->dev,
+				"erase of erase block %#llx on %s failed",
+				erase.addr, mtd->name);
+			yield();
+			goto retry;
+		}
+
+		mtdswap_handle_badblock(d, eb);
+		return -EIO;
+	}
+
+	return 0;
+}
+
+static int mtdswap_map_free_block(struct mtdswap_dev *d, unsigned int page,
+				unsigned int *block)
+{
+	int ret;
+	struct swap_eb *old_eb = d->curr_write;
+	struct rb_root *clean_root;
+	struct swap_eb *eb;
+
+	if (old_eb == NULL || d->curr_write_pos >= d->pages_per_eblk) {
+		do {
+			if (TREE_EMPTY(d, CLEAN))
+				return -ENOSPC;
+
+			clean_root = TREE_ROOT(d, CLEAN);
+			eb = rb_entry(rb_first(clean_root), struct swap_eb, rb);
+			rb_erase(&eb->rb, clean_root);
+			eb->root = NULL;
+			TREE_COUNT(d, CLEAN)--;
+
+			ret = mtdswap_write_marker(d, eb, MTDSWAP_TYPE_DIRTY);
+		} while (ret == -EIO || ret == -EBADMSG);
+
+		if (ret)
+			return ret;
+
+		d->curr_write_pos = 0;
+		d->curr_write = eb;
+		if (old_eb)
+			mtdswap_store_eb(d, old_eb);
+	}
+
+	*block = (d->curr_write - d->eb_data) * d->pages_per_eblk +
+		d->curr_write_pos;
+
+	d->curr_write->active_count++;
+	d->revmap[*block] = page;
+	d->curr_write_pos++;
+
+	return 0;
+}
+
+static unsigned int mtdswap_free_page_cnt(struct mtdswap_dev *d)
+{
+	return TREE_COUNT(d, CLEAN) * d->pages_per_eblk +
+		d->pages_per_eblk - d->curr_write_pos;
+}
+
+static unsigned int mtdswap_enough_free_pages(struct mtdswap_dev *d)
+{
+	return mtdswap_free_page_cnt(d) > d->pages_per_eblk;
+}
+
+static int mtdswap_write_block(struct mtdswap_dev *d, char *buf,
+			unsigned int page, unsigned int *bp, int gc_context)
+{
+	struct mtd_info *mtd = d->mtd;
+	struct swap_eb *eb;
+	size_t retlen;
+	loff_t writepos;
+	int ret;
+
+retry:
+	if (!gc_context)
+		while (!mtdswap_enough_free_pages(d))
+			if (mtdswap_gc(d, 0) > 0)
+				return -ENOSPC;
+
+	ret = mtdswap_map_free_block(d, page, bp);
+	eb = d->eb_data + (*bp / d->pages_per_eblk);
+
+	if (ret == -EIO || ret == -EBADMSG) {
+		d->curr_write = NULL;
+		eb->active_count--;
+		d->revmap[*bp] = PAGE_UNDEF;
+		goto retry;
+	}
+
+	if (ret < 0)
+		return ret;
+
+	writepos = (loff_t)*bp << PAGE_SHIFT;
+	ret =  mtd->write(mtd, writepos, PAGE_SIZE, &retlen, buf);
+	if (ret == -EIO || ret == -EBADMSG) {
+		d->curr_write_pos--;
+		eb->active_count--;
+		d->revmap[*bp] = PAGE_UNDEF;
+		mtdswap_handle_write_error(d, eb);
+		goto retry;
+	}
+
+	if (ret < 0) {
+		dev_err(d->dev, "Write to MTD device failed: %d (%zd written)",
+			ret, retlen);
+		goto err;
+	}
+
+	if (retlen != PAGE_SIZE) {
+		dev_err(d->dev, "Short write to MTD device: %zd written",
+			retlen);
+		ret = -EIO;
+		goto err;
+	}
+
+	return ret;
+
+err:
+	d->curr_write_pos--;
+	eb->active_count--;
+	d->revmap[*bp] = PAGE_UNDEF;
+
+	return ret;
+}
+
+static int mtdswap_move_block(struct mtdswap_dev *d, unsigned int oldblock,
+		unsigned int *newblock)
+{
+	struct mtd_info *mtd = d->mtd;
+	struct swap_eb *eb, *oldeb;
+	int ret;
+	size_t retlen;
+	unsigned int page, retries;
+	loff_t readpos;
+
+	page = d->revmap[oldblock];
+	readpos = (loff_t) oldblock << PAGE_SHIFT;
+	retries = 0;
+
+retry:
+	ret = mtd->read(mtd, readpos, PAGE_SIZE, &retlen, d->page_buf);
+
+	if (ret < 0 && ret != -EUCLEAN) {
+		oldeb = d->eb_data + oldblock / d->pages_per_eblk;
+		oldeb->flags |= EBLOCK_READERR;
+
+		dev_err(d->dev, "Read Error: %d (block %u)\n", ret,
+			oldblock);
+		retries++;
+		if (retries < MTDSWAP_IO_RETRIES)
+			goto retry;
+
+		goto read_error;
+	}
+
+	if (retlen != PAGE_SIZE) {
+		dev_err(d->dev, "Short read: %zd (block %u)\n", retlen,
+		       oldblock);
+		ret = -EIO;
+		goto read_error;
+	}
+
+	ret = mtdswap_write_block(d, d->page_buf, page, newblock, 1);
+	if (ret < 0) {
+		d->page_data[page] = BLOCK_ERROR;
+		dev_err(d->dev, "Write error: %d\n", ret);
+		return ret;
+	}
+
+	eb = d->eb_data + *newblock / d->pages_per_eblk;
+	d->page_data[page] = *newblock;
+	d->revmap[oldblock] = PAGE_UNDEF;
+	eb = d->eb_data + oldblock / d->pages_per_eblk;
+	eb->active_count--;
+
+	return 0;
+
+read_error:
+	d->page_data[page] = BLOCK_ERROR;
+	d->revmap[oldblock] = PAGE_UNDEF;
+	return ret;
+}
+
+static int mtdswap_gc_eblock(struct mtdswap_dev *d, struct swap_eb *eb)
+{
+	unsigned int i, block, eblk_base, newblock;
+	int ret, errcode;
+
+	errcode = 0;
+	eblk_base = (eb - d->eb_data) * d->pages_per_eblk;
+
+	for (i = 0; i < d->pages_per_eblk; i++) {
+		if (d->spare_eblks < MIN_SPARE_EBLOCKS)
+			return -ENOSPC;
+
+		block = eblk_base + i;
+		if (d->revmap[block] == PAGE_UNDEF)
+			continue;
+
+		ret = mtdswap_move_block(d, block, &newblock);
+		if (ret < 0 && !errcode)
+			errcode = ret;
+	}
+
+	return errcode;
+}
+
+static int __mtdswap_choose_gc_tree(struct mtdswap_dev *d)
+{
+	int idx, stopat;
+
+	if (TREE_COUNT(d, CLEAN) < LOW_FRAG_GC_TRESHOLD)
+		stopat = MTDSWAP_LOWFRAG;
+	else
+		stopat = MTDSWAP_HIFRAG;
+
+	for (idx = MTDSWAP_BITFLIP; idx >= stopat; idx--)
+		if (d->trees[idx].root.rb_node != NULL)
+			return idx;
+
+	return -1;
+}
+
+static int mtdswap_wlfreq(unsigned int maxdiff)
+{
+	unsigned int h, x, y, dist, base;
+
+	/*
+	 * Calculate linear ramp down from f1 to f2 when maxdiff goes from
+	 * MAX_ERASE_DIFF to MAX_ERASE_DIFF + COLLECT_NONDIRTY_BASE.  Similar
+	 * to triangle with height f1 - f1 and width COLLECT_NONDIRTY_BASE.
+	 */
+
+	dist = maxdiff - MAX_ERASE_DIFF;
+	if (dist > COLLECT_NONDIRTY_BASE)
+		dist = COLLECT_NONDIRTY_BASE;
+
+	/*
+	 * Modelling the slop as right angular triangle with base
+	 * COLLECT_NONDIRTY_BASE and height freq1 - freq2. The ratio y/x is
+	 * equal to the ratio h/base.
+	 */
+	h = COLLECT_NONDIRTY_FREQ1 - COLLECT_NONDIRTY_FREQ2;
+	base = COLLECT_NONDIRTY_BASE;
+
+	x = dist - base;
+	y = (x * h + base / 2) / base;
+
+	return COLLECT_NONDIRTY_FREQ2 + y;
+}
+
+static int mtdswap_choose_wl_tree(struct mtdswap_dev *d)
+{
+	static unsigned int pick_cnt;
+	unsigned int i, idx = -1, wear, max;
+	struct rb_root *root;
+
+	max = 0;
+	for (i = 0; i <= MTDSWAP_DIRTY; i++) {
+		root = &d->trees[i].root;
+		if (root->rb_node == NULL)
+			continue;
+
+		wear = d->max_erase_count - MTDSWAP_ECNT_MIN(root);
+		if (wear > max) {
+			max = wear;
+			idx = i;
+		}
+	}
+
+	if (max > MAX_ERASE_DIFF && pick_cnt >= mtdswap_wlfreq(max) - 1) {
+		pick_cnt = 0;
+		return idx;
+	}
+
+	pick_cnt++;
+	return -1;
+}
+
+static int mtdswap_choose_gc_tree(struct mtdswap_dev *d,
+				unsigned int background)
+{
+	int idx;
+
+	if (TREE_NONEMPTY(d, FAILING) &&
+		(background || (TREE_EMPTY(d, CLEAN) && TREE_EMPTY(d, DIRTY))))
+		return MTDSWAP_FAILING;
+
+	idx = mtdswap_choose_wl_tree(d);
+	if (idx >= MTDSWAP_CLEAN)
+		return idx;
+
+	return __mtdswap_choose_gc_tree(d);
+}
+
+static struct swap_eb *mtdswap_pick_gc_eblk(struct mtdswap_dev *d,
+					unsigned int background)
+{
+	struct rb_root *rp = NULL;
+	struct swap_eb *eb = NULL;
+	int idx;
+
+	if (background && TREE_COUNT(d, CLEAN) > CLEAN_BLOCK_THRESHOLD &&
+		TREE_EMPTY(d, DIRTY) && TREE_EMPTY(d, FAILING))
+		return NULL;
+
+	idx = mtdswap_choose_gc_tree(d, background);
+	if (idx < 0)
+		return NULL;
+
+	rp = &d->trees[idx].root;
+	eb = rb_entry(rb_first(rp), struct swap_eb, rb);
+
+	rb_erase(&eb->rb, rp);
+	eb->root = NULL;
+	d->trees[idx].count--;
+	return eb;
+}
+
+static unsigned int mtdswap_test_patt(unsigned int i)
+{
+	return i % 2 ? 0x55555555 : 0xAAAAAAAA;
+}
+
+static unsigned int mtdswap_eblk_passes(struct mtdswap_dev *d,
+					struct swap_eb *eb)
+{
+	struct mtd_info *mtd = d->mtd;
+	unsigned int test, i, j, patt, mtd_pages;
+	loff_t base, pos;
+	unsigned int *p1 = (unsigned int *)d->page_buf;
+	unsigned char *p2 = (unsigned char *)d->oob_buf;
+	struct mtd_oob_ops ops;
+	int ret;
+
+	ops.mode = MTD_OOB_AUTO;
+	ops.len = mtd->writesize;
+	ops.ooblen = mtd->ecclayout->oobavail;
+	ops.ooboffs = 0;
+	ops.datbuf = d->page_buf;
+	ops.oobbuf = d->oob_buf;
+	base = mtdswap_eb_offset(d, eb);
+	mtd_pages = d->pages_per_eblk * PAGE_SIZE / mtd->writesize;
+
+	for (test = 0; test < 2; test++) {
+		pos = base;
+		for (i = 0; i < mtd_pages; i++) {
+			patt = mtdswap_test_patt(test + i);
+			memset(d->page_buf, patt, mtd->writesize);
+			memset(d->oob_buf, patt, mtd->ecclayout->oobavail);
+			ret = mtd->write_oob(mtd, pos, &ops);
+			if (ret)
+				goto error;
+
+			pos += mtd->writesize;
+		}
+
+		pos = base;
+		for (i = 0; i < mtd_pages; i++) {
+			ret = mtd->read_oob(mtd, pos, &ops);
+			if (ret)
+				goto error;
+
+			patt = mtdswap_test_patt(test + i);
+			for (j = 0; j < mtd->writesize/sizeof(int); j++)
+				if (p1[j] != patt)
+					goto error;
+
+			for (j = 0; j < mtd->ecclayout->oobavail; j++)
+				if (p2[j] != (unsigned char)patt)
+					goto error;
+
+			pos += mtd->writesize;
+		}
+
+		ret = mtdswap_erase_block(d, eb);
+		if (ret)
+			goto error;
+	}
+
+	eb->flags &= ~EBLOCK_READERR;
+	return 1;
+
+error:
+	mtdswap_handle_badblock(d, eb);
+	return 0;
+}
+
+static int mtdswap_gc(struct mtdswap_dev *d, unsigned int background)
+{
+	struct swap_eb *eb;
+	int ret;
+
+	if (d->spare_eblks < MIN_SPARE_EBLOCKS)
+		return 1;
+
+	eb = mtdswap_pick_gc_eblk(d, background);
+	if (!eb)
+		return 1;
+
+	ret = mtdswap_gc_eblock(d, eb);
+	if (ret == -ENOSPC)
+		return 1;
+
+	if (eb->flags & EBLOCK_FAILED) {
+		mtdswap_handle_badblock(d, eb);
+		return 0;
+	}
+
+	eb->flags &= ~EBLOCK_BITFLIP;
+	ret = mtdswap_erase_block(d, eb);
+	if ((eb->flags & EBLOCK_READERR) &&
+		(ret || !mtdswap_eblk_passes(d, eb)))
+		return 0;
+
+	if (ret == 0)
+		ret = mtdswap_write_marker(d, eb, MTDSWAP_TYPE_CLEAN);
+
+	if (ret == 0)
+		mtdswap_rb_add(d, eb, MTDSWAP_CLEAN);
+	else if (ret != -EIO && ret != -EBADMSG)
+		mtdswap_rb_add(d, eb, MTDSWAP_DIRTY);
+
+	return 0;
+}
+
+static void mtdswap_background(struct mtd_blktrans_dev *dev)
+{
+	struct mtdswap_dev *d = MTDSWAP_MBD_TO_MTDSWAP(dev);
+	int ret;
+
+	while (1) {
+		ret = mtdswap_gc(d, 1);
+		if (ret || mtd_blktrans_cease_background(dev))
+			return;
+	}
+}
+
+static void mtdswap_cleanup(struct mtdswap_dev *d)
+{
+	vfree(d->eb_data);
+	vfree(d->revmap);
+	vfree(d->page_data);
+	kfree(d->oob_buf);
+	kfree(d->page_buf);
+}
+
+static int mtdswap_flush(struct mtd_blktrans_dev *dev)
+{
+	struct mtdswap_dev *d = MTDSWAP_MBD_TO_MTDSWAP(dev);
+
+	if (d->mtd->sync)
+		d->mtd->sync(d->mtd);
+	return 0;
+}
+
+static unsigned int mtdswap_badblocks(struct mtd_info *mtd, uint64_t size)
+{
+	loff_t offset;
+	unsigned int badcnt;
+
+	badcnt = 0;
+
+	if (mtd->block_isbad)
+		for (offset = 0; offset < size; offset += mtd->erasesize)
+			if (mtd->block_isbad(mtd, offset))
+				badcnt++;
+
+	return badcnt;
+}
+
+static int mtdswap_writesect(struct mtd_blktrans_dev *dev,
+			unsigned long page, char *buf)
+{
+	struct mtdswap_dev *d = MTDSWAP_MBD_TO_MTDSWAP(dev);
+	unsigned int newblock, mapped;
+	struct swap_eb *eb;
+	int ret;
+
+	d->sect_write_count++;
+
+	if (d->spare_eblks < MIN_SPARE_EBLOCKS)
+		return -ENOSPC;
+
+	if (header) {
+		/* Ignore writes to the header page */
+		if (unlikely(page == 0))
+			return 0;
+
+		page--;
+	}
+
+	mapped = d->page_data[page];
+	if (mapped <= BLOCK_MAX) {
+		eb = d->eb_data + (mapped / d->pages_per_eblk);
+		eb->active_count--;
+		mtdswap_store_eb(d, eb);
+		d->page_data[page] = BLOCK_UNDEF;
+		d->revmap[mapped] = PAGE_UNDEF;
+	}
+
+	ret = mtdswap_write_block(d, buf, page, &newblock, 0);
+	d->mtd_write_count++;
+
+	if (ret < 0)
+		return ret;
+
+	eb = d->eb_data + (newblock / d->pages_per_eblk);
+	d->page_data[page] = newblock;
+
+	return 0;
+}
+
+/* Provide a dummy swap header for the kernel */
+static int mtdswap_auto_header(struct mtdswap_dev *d, char *buf)
+{
+	union swap_header *hd = (union swap_header *)(buf);
+
+	memset(buf, 0, PAGE_SIZE - 10);
+
+	hd->info.version = 1;
+	hd->info.last_page = d->mbd_dev->size - 1;
+	hd->info.nr_badpages = 0;
+
+	memcpy(buf + PAGE_SIZE - 10, "SWAPSPACE2", 10);
+
+	return 0;
+}
+
+static int mtdswap_readsect(struct mtd_blktrans_dev *dev,
+			unsigned long page, char *buf)
+{
+	struct mtdswap_dev *d = MTDSWAP_MBD_TO_MTDSWAP(dev);
+	struct mtd_info *mtd = d->mtd;
+	unsigned int realblock, retries;
+	loff_t readpos;
+	struct swap_eb *eb;
+	size_t retlen;
+	int ret;
+
+	d->sect_read_count++;
+
+	if (header) {
+		if (unlikely(page == 0))
+			return mtdswap_auto_header(d, buf);
+
+		page--;
+	}
+
+	realblock = d->page_data[page];
+	if (realblock > BLOCK_MAX) {
+		memset(buf, 0x0, PAGE_SIZE);
+		if (realblock == BLOCK_UNDEF)
+			return 0;
+		else
+			return -EIO;
+	}
+
+	eb = d->eb_data + (realblock / d->pages_per_eblk);
+	BUG_ON(d->revmap[realblock] == PAGE_UNDEF);
+
+	readpos = (loff_t)realblock << PAGE_SHIFT;
+	retries = 0;
+
+retry:
+	ret = mtd->read(mtd, readpos, PAGE_SIZE, &retlen, buf);
+
+	d->mtd_read_count++;
+	if (ret == -EUCLEAN) {
+		eb->flags |= EBLOCK_BITFLIP;
+		mtdswap_rb_add(d, eb, MTDSWAP_BITFLIP);
+		ret = 0;
+	}
+
+	if (ret < 0) {
+		dev_err(d->dev, "Read error %d\n", ret);
+		eb->flags |= EBLOCK_READERR;
+		mtdswap_rb_add(d, eb, MTDSWAP_FAILING);
+		retries++;
+		if (retries < MTDSWAP_IO_RETRIES)
+			goto retry;
+
+		return ret;
+	}
+
+	if (retlen != PAGE_SIZE) {
+		dev_err(d->dev, "Short read %zd\n", retlen);
+		return -EIO;
+	}
+
+	return 0;
+}
+
+static int mtdswap_discard(struct mtd_blktrans_dev *dev, unsigned long first,
+			unsigned nr_pages)
+{
+	struct mtdswap_dev *d = MTDSWAP_MBD_TO_MTDSWAP(dev);
+	unsigned long page;
+	struct swap_eb *eb;
+	unsigned int mapped;
+
+	d->discard_count++;
+
+	for (page = first; page < first + nr_pages; page++) {
+		mapped = d->page_data[page];
+		if (mapped <= BLOCK_MAX) {
+			eb = d->eb_data + (mapped / d->pages_per_eblk);
+			eb->active_count--;
+			mtdswap_store_eb(d, eb);
+			d->page_data[page] = BLOCK_UNDEF;
+			d->revmap[mapped] = PAGE_UNDEF;
+			d->discard_page_count++;
+		} else if (mapped == BLOCK_ERROR) {
+			d->page_data[page] = BLOCK_UNDEF;
+			d->discard_page_count++;
+		}
+	}
+
+	return 0;
+}
+
+static int mtdswap_show(struct seq_file *s, void *data)
+{
+	struct mtdswap_dev *d = (struct mtdswap_dev *) s->private;
+	unsigned long sum;
+	unsigned int count[MTDSWAP_TREE_CNT];
+	unsigned int min[MTDSWAP_TREE_CNT];
+	unsigned int max[MTDSWAP_TREE_CNT];
+	unsigned int i, cw = 0, cwp = 0, cwecount = 0, bb_cnt, mapped, pages;
+	uint64_t use_size;
+	char *name[] = {"clean", "used", "low", "high", "dirty", "bitflip",
+			"failing"};
+
+	mutex_lock(&d->mbd_dev->lock);
+
+	for (i = 0; i < MTDSWAP_TREE_CNT; i++) {
+		struct rb_root *root = &d->trees[i].root;
+
+		if (root->rb_node) {
+			count[i] = d->trees[i].count;
+			min[i] = rb_entry(rb_first(root), struct swap_eb,
+					rb)->erase_count;
+			max[i] = rb_entry(rb_last(root), struct swap_eb,
+					rb)->erase_count;
+		} else
+			count[i] = 0;
+	}
+
+	if (d->curr_write) {
+		cw = 1;
+		cwp = d->curr_write_pos;
+		cwecount = d->curr_write->erase_count;
+	}
+
+	sum = 0;
+	for (i = 0; i < d->eblks; i++)
+		sum += d->eb_data[i].erase_count;
+
+	use_size = (uint64_t)d->eblks * d->mtd->erasesize;
+	bb_cnt = mtdswap_badblocks(d->mtd, use_size);
+
+	mapped = 0;
+	pages = d->mbd_dev->size;
+	for (i = 0; i < pages; i++)
+		if (d->page_data[i] != BLOCK_UNDEF)
+			mapped++;
+
+	mutex_unlock(&d->mbd_dev->lock);
+
+	for (i = 0; i < MTDSWAP_TREE_CNT; i++) {
+		if (!count[i])
+			continue;
+
+		if (min[i] != max[i])
+			seq_printf(s, "%s:\t%5d erase blocks, erased min %d, "
+				"max %d times\n",
+				name[i], count[i], min[i], max[i]);
+		else
+			seq_printf(s, "%s:\t%5d erase blocks, all erased %d "
+				"times\n", name[i], count[i], min[i]);
+	}
+
+	if (bb_cnt)
+		seq_printf(s, "bad:\t%5u erase blocks\n", bb_cnt);
+
+	if (cw)
+		seq_printf(s, "current erase block: %u pages used, %u free, "
+			"erased %u times\n",
+			cwp, d->pages_per_eblk - cwp, cwecount);
+
+	seq_printf(s, "total erasures: %lu\n", sum);
+
+	seq_printf(s, "\n");
+
+	seq_printf(s, "mtdswap_readsect count: %llu\n", d->sect_read_count);
+	seq_printf(s, "mtdswap_writesect count: %llu\n", d->sect_write_count);
+	seq_printf(s, "mtdswap_discard count: %llu\n", d->discard_count);
+	seq_printf(s, "mtd read count: %llu\n", d->mtd_read_count);
+	seq_printf(s, "mtd write count: %llu\n", d->mtd_write_count);
+	seq_printf(s, "discarded pages count: %llu\n", d->discard_page_count);
+
+	seq_printf(s, "\n");
+	seq_printf(s, "total pages: %u\n", pages);
+	seq_printf(s, "pages mapped: %u\n", mapped);
+
+	return 0;
+}
+
+static int mtdswap_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, mtdswap_show, inode->i_private);
+}
+
+static const struct file_operations mtdswap_fops = {
+	.open		= mtdswap_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
+static int mtdswap_add_debugfs(struct mtdswap_dev *d)
+{
+	struct gendisk *gd = d->mbd_dev->disk;
+	struct device *dev = disk_to_dev(gd);
+
+	struct dentry *root;
+	struct dentry *dent;
+
+	root = debugfs_create_dir(gd->disk_name, NULL);
+	if (IS_ERR(root))
+		return 0;
+
+	if (!root) {
+		dev_err(dev, "failed to initialize debugfs\n");
+		return -1;
+	}
+
+	d->debugfs_root = root;
+
+	dent = debugfs_create_file("stats", S_IRUSR, root, d,
+				&mtdswap_fops);
+	if (!dent) {
+		dev_err(d->dev, "debugfs_create_file failed\n");
+		debugfs_remove_recursive(root);
+		d->debugfs_root = NULL;
+		return -1;
+	}
+
+	return 0;
+}
+
+static int mtdswap_init(struct mtdswap_dev *d, unsigned int eblocks,
+			unsigned int spare_cnt)
+{
+	struct mtd_info *mtd = d->mbd_dev->mtd;
+	unsigned int i, eblk_bytes, pages, blocks;
+	int ret = -ENOMEM;
+
+	d->mtd = mtd;
+	d->eblks = eblocks;
+	d->spare_eblks = spare_cnt;
+	d->pages_per_eblk = mtd->erasesize >> PAGE_SHIFT;
+
+	pages = d->mbd_dev->size;
+	blocks = eblocks * d->pages_per_eblk;
+
+	for (i = 0; i < MTDSWAP_TREE_CNT; i++)
+		d->trees[i].root = RB_ROOT;
+
+	d->page_data = vmalloc(sizeof(int)*pages);
+	if (!d->page_data)
+		goto page_data_fail;
+
+	d->revmap = vmalloc(sizeof(int)*blocks);
+	if (!d->revmap)
+		goto revmap_fail;
+
+	eblk_bytes = sizeof(struct swap_eb)*d->eblks;
+	d->eb_data = vmalloc(eblk_bytes);
+	if (!d->eb_data)
+		goto eb_data_fail;
+
+	memset(d->eb_data, 0, eblk_bytes);
+	for (i = 0; i < pages; i++)
+		d->page_data[i] = BLOCK_UNDEF;
+
+	for (i = 0; i < blocks; i++)
+		d->revmap[i] = PAGE_UNDEF;
+
+	d->page_buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
+	if (!d->page_buf)
+		goto page_buf_fail;
+
+	d->oob_buf = kmalloc(2 * mtd->ecclayout->oobavail, GFP_KERNEL);
+	if (!d->oob_buf)
+		goto oob_buf_fail;
+
+	mtdswap_scan_eblks(d);
+
+	return 0;
+
+oob_buf_fail:
+	kfree(d->page_buf);
+page_buf_fail:
+	vfree(d->eb_data);
+eb_data_fail:
+	vfree(d->revmap);
+revmap_fail:
+	vfree(d->page_data);
+page_data_fail:
+	printk(KERN_ERR "%s: init failed (%d)\n", MTDSWAP_PREFIX, ret);
+	return ret;
+}
+
+static void mtdswap_add_mtd(struct mtd_blktrans_ops *tr, struct mtd_info *mtd)
+{
+	struct mtdswap_dev *d;
+	struct mtd_blktrans_dev *mbd_dev;
+	char *parts;
+	char *this_opt;
+	unsigned long part;
+	unsigned int eblocks, eavailable, bad_blocks, spare_cnt;
+	uint64_t swap_size, use_size, size_limit;
+	struct nand_ecclayout *oinfo;
+	int ret;
+
+	parts = &partitions[0];
+	if (!*parts)
+		return;
+
+	while ((this_opt = strsep(&parts, ",")) != NULL) {
+		if (strict_strtoul(this_opt, 0, &part) < 0)
+			return;
+
+		if (mtd->index == part)
+			break;
+	}
+
+	if (mtd->index != part)
+		return;
+
+	if (mtd->erasesize < PAGE_SIZE || mtd->erasesize % PAGE_SIZE) {
+		printk(KERN_ERR "%s: Erase size %u not multiple of PAGE_SIZE "
+			"%lu\n", MTDSWAP_PREFIX, mtd->erasesize, PAGE_SIZE);
+		return;
+	}
+
+	if (PAGE_SIZE % mtd->writesize || mtd->writesize > PAGE_SIZE) {
+		printk(KERN_ERR "%s: PAGE_SIZE %lu not multiple of write size"
+			" %u\n", MTDSWAP_PREFIX, PAGE_SIZE, mtd->writesize);
+		return;
+	}
+
+	oinfo = mtd->ecclayout;
+	if (!mtd->oobsize || !oinfo || oinfo->oobavail < MTDSWAP_OOBSIZE) {
+		printk(KERN_ERR "%s: Not enough free bytes in OOB, "
+			"%d available, %lu needed.\n",
+			MTDSWAP_PREFIX, oinfo->oobavail, MTDSWAP_OOBSIZE);
+		return;
+	}
+
+	if (spare_eblocks > 100)
+		spare_eblocks = 100;
+
+	use_size = mtd->size;
+	size_limit = (uint64_t) BLOCK_MAX * PAGE_SIZE;
+
+	if (mtd->size > size_limit) {
+		printk(KERN_WARNING "%s: Device too large. Limiting size to "
+			"%llu bytes\n", MTDSWAP_PREFIX, size_limit);
+		use_size = size_limit;
+	}
+
+	eblocks = mtd_div_by_eb(use_size, mtd);
+	use_size = eblocks * mtd->erasesize;
+	bad_blocks = mtdswap_badblocks(mtd, use_size);
+	eavailable = eblocks - bad_blocks;
+
+	if (eavailable < MIN_ERASE_BLOCKS) {
+		printk(KERN_ERR "%s: Not enough erase blocks. %u available, "
+			"%d needed\n", MTDSWAP_PREFIX, eavailable,
+			MIN_ERASE_BLOCKS);
+		return;
+	}
+
+	spare_cnt = div_u64((uint64_t)eavailable * spare_eblocks, 100);
+
+	if (spare_cnt < MIN_SPARE_EBLOCKS)
+		spare_cnt = MIN_SPARE_EBLOCKS;
+
+	if (spare_cnt > eavailable - 1)
+		spare_cnt = eavailable - 1;
+
+	swap_size = (uint64_t)(eavailable - spare_cnt) * mtd->erasesize +
+		(header ? PAGE_SIZE : 0);
+
+	printk(KERN_INFO "%s: Enabling MTD swap on device %lu, size %llu KB, "
+		"%u spare, %u bad blocks\n",
+		MTDSWAP_PREFIX, part, swap_size / 1024, spare_cnt, bad_blocks);
+
+	d = kzalloc(sizeof(struct mtdswap_dev), GFP_KERNEL);
+	if (!d)
+		return;
+
+	mbd_dev = kzalloc(sizeof(struct mtd_blktrans_dev), GFP_KERNEL);
+	if (!mbd_dev) {
+		kfree(d);
+		return;
+	}
+
+	d->mbd_dev = mbd_dev;
+	mbd_dev->priv = d;
+
+	mbd_dev->mtd = mtd;
+	mbd_dev->devnum = mtd->index;
+	mbd_dev->size = swap_size >> PAGE_SHIFT;
+	mbd_dev->tr = tr;
+
+	if (!(mtd->flags & MTD_WRITEABLE))
+		mbd_dev->readonly = 1;
+
+	if (mtdswap_init(d, eblocks, spare_cnt) < 0)
+		goto init_failed;
+
+	if (add_mtd_blktrans_dev(mbd_dev) < 0)
+		goto cleanup;
+
+	d->dev = disk_to_dev(mbd_dev->disk);
+
+	ret = mtdswap_add_debugfs(d);
+	if (ret < 0)
+		goto debugfs_failed;
+
+	return;
+
+debugfs_failed:
+	del_mtd_blktrans_dev(mbd_dev);
+
+cleanup:
+	mtdswap_cleanup(d);
+
+init_failed:
+	kfree(mbd_dev);
+	kfree(d);
+}
+
+static void mtdswap_remove_dev(struct mtd_blktrans_dev *dev)
+{
+	struct mtdswap_dev *d = MTDSWAP_MBD_TO_MTDSWAP(dev);
+
+	debugfs_remove_recursive(d->debugfs_root);
+	del_mtd_blktrans_dev(dev);
+	mtdswap_cleanup(d);
+	kfree(d);
+}
+
+static struct mtd_blktrans_ops mtdswap_ops = {
+	.name		= "mtdswap",
+	.major		= 0,
+	.part_bits	= 0,
+	.blksize	= PAGE_SIZE,
+	.flush		= mtdswap_flush,
+	.readsect	= mtdswap_readsect,
+	.writesect	= mtdswap_writesect,
+	.discard	= mtdswap_discard,
+	.background	= mtdswap_background,
+	.add_mtd	= mtdswap_add_mtd,
+	.remove_dev	= mtdswap_remove_dev,
+	.owner		= THIS_MODULE,
+};
+
+static int __init mtdswap_modinit(void)
+{
+	return register_mtd_blktrans(&mtdswap_ops);
+}
+
+static void __exit mtdswap_modexit(void)
+{
+	deregister_mtd_blktrans(&mtdswap_ops);
+}
+
+module_init(mtdswap_modinit);
+module_exit(mtdswap_modexit);
+
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Jarkko Lavinen <jarkko.lavinen@nokia.com>");
+MODULE_DESCRIPTION("Block device access to an MTD suitable for using as "
+		"swap space");
diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig
index 4f6c06f16328..edec457d361d 100644
--- a/drivers/mtd/nand/Kconfig
+++ b/drivers/mtd/nand/Kconfig
@@ -31,6 +31,21 @@ config MTD_NAND_VERIFY_WRITE
 	  device thinks the write was successful, a bit could have been
 	  flipped accidentally due to device wear or something else.
 
+config MTD_NAND_BCH
+	tristate
+	select BCH
+	depends on MTD_NAND_ECC_BCH
+	default MTD_NAND
+
+config MTD_NAND_ECC_BCH
+	bool "Support software BCH ECC"
+	default n
+	help
+	  This enables support for software BCH error correction. Binary BCH
+	  codes are more powerful and cpu intensive than traditional Hamming
+	  ECC codes. They are used with NAND devices requiring more than 1 bit
+	  of error correction.
+
 config MTD_SM_COMMON
 	tristate
 	default n
@@ -224,7 +239,7 @@ config MTD_NAND_BCM_UMI
 	help
 	  This enables the NAND flash controller on the BCM UMI block.
 
-	  No board specfic support is done by this driver, each board
+	  No board specific support is done by this driver, each board
 	  must advertise a platform_device for the driver to attach.
 
 config MTD_NAND_BCM_UMI_HWCS
diff --git a/drivers/mtd/nand/Makefile b/drivers/mtd/nand/Makefile
index 8ad6faec72cb..5745d831168e 100644
--- a/drivers/mtd/nand/Makefile
+++ b/drivers/mtd/nand/Makefile
@@ -4,6 +4,7 @@
 
 obj-$(CONFIG_MTD_NAND)			+= nand.o
 obj-$(CONFIG_MTD_NAND_ECC)		+= nand_ecc.o
+obj-$(CONFIG_MTD_NAND_BCH)		+= nand_bch.o
 obj-$(CONFIG_MTD_NAND_IDS)		+= nand_ids.o
 obj-$(CONFIG_MTD_SM_COMMON) 		+= sm_common.o
 
diff --git a/drivers/mtd/nand/ams-delta.c b/drivers/mtd/nand/ams-delta.c
index a067d090cb31..bc65bf71e1a2 100644
--- a/drivers/mtd/nand/ams-delta.c
+++ b/drivers/mtd/nand/ams-delta.c
@@ -228,7 +228,7 @@ static int __devinit ams_delta_init(struct platform_device *pdev)
 					  AMS_DELTA_LATCH2_NAND_NCE |
 					  AMS_DELTA_LATCH2_NAND_NWP);
 
-	/* Scan to find existance of the device */
+	/* Scan to find existence of the device */
 	if (nand_scan(ams_delta_mtd, 1)) {
 		err = -ENXIO;
 		goto out_mtd;
diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c
index ccce0f03b5dc..6fae04b3fc6d 100644
--- a/drivers/mtd/nand/atmel_nand.c
+++ b/drivers/mtd/nand/atmel_nand.c
@@ -48,6 +48,9 @@
 #define no_ecc		0
 #endif
 
+static int use_dma = 1;
+module_param(use_dma, int, 0);
+
 static int on_flash_bbt = 0;
 module_param(on_flash_bbt, int, 0);
 
@@ -89,11 +92,20 @@ struct atmel_nand_host {
 	struct nand_chip	nand_chip;
 	struct mtd_info		mtd;
 	void __iomem		*io_base;
+	dma_addr_t		io_phys;
 	struct atmel_nand_data	*board;
 	struct device		*dev;
 	void __iomem		*ecc;
+
+	struct completion	comp;
+	struct dma_chan		*dma_chan;
 };
 
+static int cpu_has_dma(void)
+{
+	return cpu_is_at91sam9rl() || cpu_is_at91sam9g45();
+}
+
 /*
  * Enable NAND.
  */
@@ -150,7 +162,7 @@ static int atmel_nand_device_ready(struct mtd_info *mtd)
 /*
  * Minimal-overhead PIO for data access.
  */
-static void atmel_read_buf(struct mtd_info *mtd, u8 *buf, int len)
+static void atmel_read_buf8(struct mtd_info *mtd, u8 *buf, int len)
 {
 	struct nand_chip	*nand_chip = mtd->priv;
 
@@ -164,7 +176,7 @@ static void atmel_read_buf16(struct mtd_info *mtd, u8 *buf, int len)
 	__raw_readsw(nand_chip->IO_ADDR_R, buf, len / 2);
 }
 
-static void atmel_write_buf(struct mtd_info *mtd, const u8 *buf, int len)
+static void atmel_write_buf8(struct mtd_info *mtd, const u8 *buf, int len)
 {
 	struct nand_chip	*nand_chip = mtd->priv;
 
@@ -178,6 +190,121 @@ static void atmel_write_buf16(struct mtd_info *mtd, const u8 *buf, int len)
 	__raw_writesw(nand_chip->IO_ADDR_W, buf, len / 2);
 }
 
+static void dma_complete_func(void *completion)
+{
+	complete(completion);
+}
+
+static int atmel_nand_dma_op(struct mtd_info *mtd, void *buf, int len,
+			       int is_read)
+{
+	struct dma_device *dma_dev;
+	enum dma_ctrl_flags flags;
+	dma_addr_t dma_src_addr, dma_dst_addr, phys_addr;
+	struct dma_async_tx_descriptor *tx = NULL;
+	dma_cookie_t cookie;
+	struct nand_chip *chip = mtd->priv;
+	struct atmel_nand_host *host = chip->priv;
+	void *p = buf;
+	int err = -EIO;
+	enum dma_data_direction dir = is_read ? DMA_FROM_DEVICE : DMA_TO_DEVICE;
+
+	if (buf >= high_memory) {
+		struct page *pg;
+
+		if (((size_t)buf & PAGE_MASK) !=
+		    ((size_t)(buf + len - 1) & PAGE_MASK)) {
+			dev_warn(host->dev, "Buffer not fit in one page\n");
+			goto err_buf;
+		}
+
+		pg = vmalloc_to_page(buf);
+		if (pg == 0) {
+			dev_err(host->dev, "Failed to vmalloc_to_page\n");
+			goto err_buf;
+		}
+		p = page_address(pg) + ((size_t)buf & ~PAGE_MASK);
+	}
+
+	dma_dev = host->dma_chan->device;
+
+	flags = DMA_CTRL_ACK | DMA_PREP_INTERRUPT | DMA_COMPL_SKIP_SRC_UNMAP |
+		DMA_COMPL_SKIP_DEST_UNMAP;
+
+	phys_addr = dma_map_single(dma_dev->dev, p, len, dir);
+	if (dma_mapping_error(dma_dev->dev, phys_addr)) {
+		dev_err(host->dev, "Failed to dma_map_single\n");
+		goto err_buf;
+	}
+
+	if (is_read) {
+		dma_src_addr = host->io_phys;
+		dma_dst_addr = phys_addr;
+	} else {
+		dma_src_addr = phys_addr;
+		dma_dst_addr = host->io_phys;
+	}
+
+	tx = dma_dev->device_prep_dma_memcpy(host->dma_chan, dma_dst_addr,
+					     dma_src_addr, len, flags);
+	if (!tx) {
+		dev_err(host->dev, "Failed to prepare DMA memcpy\n");
+		goto err_dma;
+	}
+
+	init_completion(&host->comp);
+	tx->callback = dma_complete_func;
+	tx->callback_param = &host->comp;
+
+	cookie = tx->tx_submit(tx);
+	if (dma_submit_error(cookie)) {
+		dev_err(host->dev, "Failed to do DMA tx_submit\n");
+		goto err_dma;
+	}
+
+	dma_async_issue_pending(host->dma_chan);
+	wait_for_completion(&host->comp);
+
+	err = 0;
+
+err_dma:
+	dma_unmap_single(dma_dev->dev, phys_addr, len, dir);
+err_buf:
+	if (err != 0)
+		dev_warn(host->dev, "Fall back to CPU I/O\n");
+	return err;
+}
+
+static void atmel_read_buf(struct mtd_info *mtd, u8 *buf, int len)
+{
+	struct nand_chip *chip = mtd->priv;
+	struct atmel_nand_host *host = chip->priv;
+
+	if (use_dma && len >= mtd->oobsize)
+		if (atmel_nand_dma_op(mtd, buf, len, 1) == 0)
+			return;
+
+	if (host->board->bus_width_16)
+		atmel_read_buf16(mtd, buf, len);
+	else
+		atmel_read_buf8(mtd, buf, len);
+}
+
+static void atmel_write_buf(struct mtd_info *mtd, const u8 *buf, int len)
+{
+	struct nand_chip *chip = mtd->priv;
+	struct atmel_nand_host *host = chip->priv;
+
+	if (use_dma && len >= mtd->oobsize)
+		if (atmel_nand_dma_op(mtd, (void *)buf, len, 0) == 0)
+			return;
+
+	if (host->board->bus_width_16)
+		atmel_write_buf16(mtd, buf, len);
+	else
+		atmel_write_buf8(mtd, buf, len);
+}
+
 /*
  * Calculate HW ECC
  *
@@ -398,6 +525,8 @@ static int __init atmel_nand_probe(struct platform_device *pdev)
 		return -ENOMEM;
 	}
 
+	host->io_phys = (dma_addr_t)mem->start;
+
 	host->io_base = ioremap(mem->start, mem->end - mem->start + 1);
 	if (host->io_base == NULL) {
 		printk(KERN_ERR "atmel_nand: ioremap failed\n");
@@ -448,14 +577,11 @@ static int __init atmel_nand_probe(struct platform_device *pdev)
 
 	nand_chip->chip_delay = 20;		/* 20us command delay time */
 
-	if (host->board->bus_width_16) {	/* 16-bit bus width */
+	if (host->board->bus_width_16)	/* 16-bit bus width */
 		nand_chip->options |= NAND_BUSWIDTH_16;
-		nand_chip->read_buf = atmel_read_buf16;
-		nand_chip->write_buf = atmel_write_buf16;
-	} else {
-		nand_chip->read_buf = atmel_read_buf;
-		nand_chip->write_buf = atmel_write_buf;
-	}
+
+	nand_chip->read_buf = atmel_read_buf;
+	nand_chip->write_buf = atmel_write_buf;
 
 	platform_set_drvdata(pdev, host);
 	atmel_nand_enable(host);
@@ -473,6 +599,22 @@ static int __init atmel_nand_probe(struct platform_device *pdev)
 		nand_chip->options |= NAND_USE_FLASH_BBT;
 	}
 
+	if (cpu_has_dma() && use_dma) {
+		dma_cap_mask_t mask;
+
+		dma_cap_zero(mask);
+		dma_cap_set(DMA_MEMCPY, mask);
+		host->dma_chan = dma_request_channel(mask, 0, NULL);
+		if (!host->dma_chan) {
+			dev_err(host->dev, "Failed to request DMA channel\n");
+			use_dma = 0;
+		}
+	}
+	if (use_dma)
+		dev_info(host->dev, "Using DMA for NAND access.\n");
+	else
+		dev_info(host->dev, "No DMA support for NAND access.\n");
+
 	/* first scan to find the device and get the page size */
 	if (nand_scan_ident(mtd, 1, NULL)) {
 		res = -ENXIO;
@@ -555,6 +697,8 @@ err_scan_ident:
 err_no_card:
 	atmel_nand_disable(host);
 	platform_set_drvdata(pdev, NULL);
+	if (host->dma_chan)
+		dma_release_channel(host->dma_chan);
 	if (host->ecc)
 		iounmap(host->ecc);
 err_ecc_ioremap:
@@ -578,6 +722,10 @@ static int __exit atmel_nand_remove(struct platform_device *pdev)
 
 	if (host->ecc)
 		iounmap(host->ecc);
+
+	if (host->dma_chan)
+		dma_release_channel(host->dma_chan);
+
 	iounmap(host->io_base);
 	kfree(host);
 
diff --git a/drivers/mtd/nand/autcpu12.c b/drivers/mtd/nand/autcpu12.c
index 7c95da1f612c..0911cf03db80 100644
--- a/drivers/mtd/nand/autcpu12.c
+++ b/drivers/mtd/nand/autcpu12.c
@@ -176,7 +176,7 @@ static int __init autcpu12_init(void)
 	 */
 	this->options = NAND_USE_FLASH_BBT;
 
-	/* Scan to find existance of the device */
+	/* Scan to find existence of the device */
 	if (nand_scan(autcpu12_mtd, 1)) {
 		err = -ENXIO;
 		goto out_ior;
diff --git a/drivers/mtd/nand/cs553x_nand.c b/drivers/mtd/nand/cs553x_nand.c
index 9f1b451005ca..71c35a0b9826 100644
--- a/drivers/mtd/nand/cs553x_nand.c
+++ b/drivers/mtd/nand/cs553x_nand.c
@@ -241,7 +241,7 @@ static int __init cs553x_init_one(int cs, int mmio, unsigned long adr)
 	/* Enable the following for a flash based bad block table */
 	this->options = NAND_USE_FLASH_BBT | NAND_NO_AUTOINCR;
 
-	/* Scan to find existance of the device */
+	/* Scan to find existence of the device */
 	if (nand_scan(new_mtd, 1)) {
 		err = -ENXIO;
 		goto out_ior;
diff --git a/drivers/mtd/nand/davinci_nand.c b/drivers/mtd/nand/davinci_nand.c
index a90fde3ede28..aff3468867ac 100644
--- a/drivers/mtd/nand/davinci_nand.c
+++ b/drivers/mtd/nand/davinci_nand.c
@@ -37,9 +37,6 @@
 #include <mach/nand.h>
 #include <mach/aemif.h>
 
-#include <asm/mach-types.h>
-
-
 /*
  * This is a device driver for the NAND flash controller found on the
  * various DaVinci family chips.  It handles up to four SoC chipselects,
diff --git a/drivers/mtd/nand/denali.c b/drivers/mtd/nand/denali.c
index 8c8d3c86c0e8..4633f094c510 100644
--- a/drivers/mtd/nand/denali.c
+++ b/drivers/mtd/nand/denali.c
@@ -724,7 +724,7 @@ static uint32_t wait_for_irq(struct denali_nand_info *denali, uint32_t irq_mask)
 }
 
 /* This helper function setups the registers for ECC and whether or not
- * the spare area will be transfered. */
+ * the spare area will be transferred. */
 static void setup_ecc_for_xfer(struct denali_nand_info *denali, bool ecc_en,
 				bool transfer_spare)
 {
@@ -965,7 +965,7 @@ static bool handle_ecc(struct denali_nand_info *denali, uint8_t *buf,
 
 			if (ECC_ERROR_CORRECTABLE(err_correction_info)) {
 				/* If err_byte is larger than ECC_SECTOR_SIZE,
-				 * means error happend in OOB, so we ignore
+				 * means error happened in OOB, so we ignore
 				 * it. It's no need for us to correct it
 				 * err_device is represented the NAND error
 				 * bits are happened in if there are more
@@ -1109,7 +1109,7 @@ static void denali_write_page(struct mtd_info *mtd, struct nand_chip *chip,
 }
 
 /* This is the callback that the NAND core calls to write a page without ECC.
- * raw access is similiar to ECC page writes, so all the work is done in the
+ * raw access is similar to ECC page writes, so all the work is done in the
  * write_page() function above.
  */
 static void denali_write_page_raw(struct mtd_info *mtd, struct nand_chip *chip,
diff --git a/drivers/mtd/nand/diskonchip.c b/drivers/mtd/nand/diskonchip.c
index b7f8de7b2780..96c0b34ba8db 100644
--- a/drivers/mtd/nand/diskonchip.c
+++ b/drivers/mtd/nand/diskonchip.c
@@ -137,7 +137,7 @@ static struct rs_control *rs_decoder;
  *
  * Fabrice Bellard figured this out in the old docecc code. I added
  * some comments, improved a minor bit and converted it to make use
- * of the generic Reed-Solomon libary. tglx
+ * of the generic Reed-Solomon library. tglx
  */
 static int doc_ecc_decode(struct rs_control *rs, uint8_t *data, uint8_t *ecc)
 {
@@ -400,7 +400,7 @@ static uint16_t __init doc200x_ident_chip(struct mtd_info *mtd, int nr)
 	doc200x_hwcontrol(mtd, 0, NAND_CTRL_ALE | NAND_CTRL_CHANGE);
 	doc200x_hwcontrol(mtd, NAND_CMD_NONE, NAND_NCE | NAND_CTRL_CHANGE);
 
-	/* We cant' use dev_ready here, but at least we wait for the
+	/* We can't' use dev_ready here, but at least we wait for the
 	 * command to complete
 	 */
 	udelay(50);
@@ -986,7 +986,7 @@ static int doc200x_correct_data(struct mtd_info *mtd, u_char *dat,
 		dummy = ReadDOC(docptr, ECCConf);
 	}
 
-	/* Error occured ? */
+	/* Error occurred ? */
 	if (dummy & 0x80) {
 		for (i = 0; i < 6; i++) {
 			if (DoC_is_MillenniumPlus(doc))
@@ -1160,7 +1160,7 @@ static inline int __init nftl_partscan(struct mtd_info *mtd, struct mtd_partitio
 	/* NOTE: The lines below modify internal variables of the NAND and MTD
 	   layers; variables with have already been configured by nand_scan.
 	   Unfortunately, we didn't know before this point what these values
-	   should be.  Thus, this code is somewhat dependant on the exact
+	   should be.  Thus, this code is somewhat dependent on the exact
 	   implementation of the NAND layer.  */
 	if (mh->UnitSizeFactor != 0xff) {
 		this->bbt_erase_shift += (0xff - mh->UnitSizeFactor);
diff --git a/drivers/mtd/nand/fsl_elbc_nand.c b/drivers/mtd/nand/fsl_elbc_nand.c
index 7a13d42cbabd..537e380b8dcb 100644
--- a/drivers/mtd/nand/fsl_elbc_nand.c
+++ b/drivers/mtd/nand/fsl_elbc_nand.c
@@ -59,7 +59,7 @@ struct fsl_elbc_mtd {
 	unsigned int fmr;       /* FCM Flash Mode Register value     */
 };
 
-/* Freescale eLBC FCM controller infomation */
+/* Freescale eLBC FCM controller information */
 
 struct fsl_elbc_fcm_ctrl {
 	struct nand_hw_control controller;
diff --git a/drivers/mtd/nand/fsmc_nand.c b/drivers/mtd/nand/fsmc_nand.c
index 205b10b9f9b9..0d45ef3883e8 100644
--- a/drivers/mtd/nand/fsmc_nand.c
+++ b/drivers/mtd/nand/fsmc_nand.c
@@ -335,7 +335,7 @@ static void fsmc_enable_hwecc(struct mtd_info *mtd, int mode)
 
 /*
  * fsmc_read_hwecc_ecc4 - Hardware ECC calculator for ecc4 option supported by
- * FSMC. ECC is 13 bytes for 512 bytes of data (supports error correction upto
+ * FSMC. ECC is 13 bytes for 512 bytes of data (supports error correction up to
  * max of 8-bits)
  */
 static int fsmc_read_hwecc_ecc4(struct mtd_info *mtd, const uint8_t *data,
@@ -381,7 +381,7 @@ static int fsmc_read_hwecc_ecc4(struct mtd_info *mtd, const uint8_t *data,
 
 /*
  * fsmc_read_hwecc_ecc1 - Hardware ECC calculator for ecc1 option supported by
- * FSMC. ECC is 3 bytes for 512 bytes of data (supports error correction upto
+ * FSMC. ECC is 3 bytes for 512 bytes of data (supports error correction up to
  * max of 1-bit)
  */
 static int fsmc_read_hwecc_ecc1(struct mtd_info *mtd, const uint8_t *data,
@@ -408,10 +408,10 @@ static int fsmc_read_hwecc_ecc1(struct mtd_info *mtd, const uint8_t *data,
  * @buf:	buffer to store read data
  * @page:	page number to read
  *
- * This routine is needed for fsmc verison 8 as reading from NAND chip has to be
+ * This routine is needed for fsmc version 8 as reading from NAND chip has to be
  * performed in a strict sequence as follows:
  * data(512 byte) -> ecc(13 byte)
- * After this read, fsmc hardware generates and reports error data bits(upto a
+ * After this read, fsmc hardware generates and reports error data bits(up to a
  * max of 8 bits)
  */
 static int fsmc_read_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip,
@@ -686,7 +686,7 @@ static int __init fsmc_nand_probe(struct platform_device *pdev)
 	}
 
 	/*
-	 * Scan to find existance of the device
+	 * Scan to find existence of the device
 	 */
 	if (nand_scan_ident(&host->mtd, 1, NULL)) {
 		ret = -ENXIO;
diff --git a/drivers/mtd/nand/mpc5121_nfc.c b/drivers/mtd/nand/mpc5121_nfc.c
index c2f95437e5e9..0b81b5b499d1 100644
--- a/drivers/mtd/nand/mpc5121_nfc.c
+++ b/drivers/mtd/nand/mpc5121_nfc.c
@@ -29,6 +29,7 @@
 #include <linux/clk.h>
 #include <linux/gfp.h>
 #include <linux/delay.h>
+#include <linux/err.h>
 #include <linux/init.h>
 #include <linux/interrupt.h>
 #include <linux/io.h>
@@ -757,9 +758,9 @@ static int __devinit mpc5121_nfc_probe(struct platform_device *op)
 
 	/* Enable NFC clock */
 	prv->clk = clk_get(dev, "nfc_clk");
-	if (!prv->clk) {
+	if (IS_ERR(prv->clk)) {
 		dev_err(dev, "Unable to acquire NFC clock!\n");
-		retval = -ENODEV;
+		retval = PTR_ERR(prv->clk);
 		goto error;
 	}
 
diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c
index 5ae1d9ee2cf1..42a95fb41504 100644
--- a/drivers/mtd/nand/mxc_nand.c
+++ b/drivers/mtd/nand/mxc_nand.c
@@ -211,6 +211,31 @@ static struct nand_ecclayout nandv2_hw_eccoob_largepage = {
 	}
 };
 
+/* OOB description for 4096 byte pages with 128 byte OOB */
+static struct nand_ecclayout nandv2_hw_eccoob_4k = {
+	.eccbytes = 8 * 9,
+	.eccpos = {
+		7,  8,  9, 10, 11, 12, 13, 14, 15,
+		23, 24, 25, 26, 27, 28, 29, 30, 31,
+		39, 40, 41, 42, 43, 44, 45, 46, 47,
+		55, 56, 57, 58, 59, 60, 61, 62, 63,
+		71, 72, 73, 74, 75, 76, 77, 78, 79,
+		87, 88, 89, 90, 91, 92, 93, 94, 95,
+		103, 104, 105, 106, 107, 108, 109, 110, 111,
+		119, 120, 121, 122, 123, 124, 125, 126, 127,
+	},
+	.oobfree = {
+		{.offset = 2, .length = 4},
+		{.offset = 16, .length = 7},
+		{.offset = 32, .length = 7},
+		{.offset = 48, .length = 7},
+		{.offset = 64, .length = 7},
+		{.offset = 80, .length = 7},
+		{.offset = 96, .length = 7},
+		{.offset = 112, .length = 7},
+	}
+};
+
 #ifdef CONFIG_MTD_PARTITIONS
 static const char *part_probes[] = { "RedBoot", "cmdlinepart", NULL };
 #endif
@@ -641,9 +666,9 @@ static void mxc_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len)
 
 	n = min(n, len);
 
-	memcpy(buf, host->data_buf + col, len);
+	memcpy(buf, host->data_buf + col, n);
 
-	host->buf_start += len;
+	host->buf_start += n;
 }
 
 /* Used by the upper layer to verify the data in NAND Flash
@@ -1185,6 +1210,8 @@ static int __init mxcnd_probe(struct platform_device *pdev)
 
 	if (mtd->writesize == 2048)
 		this->ecc.layout = oob_largepage;
+	if (nfc_is_v21() && mtd->writesize == 4096)
+		this->ecc.layout = &nandv2_hw_eccoob_4k;
 
 	/* second phase scan */
 	if (nand_scan_tail(mtd)) {
diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index a9c6ce745767..c54a4cbac6bc 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -42,6 +42,7 @@
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/nand.h>
 #include <linux/mtd/nand_ecc.h>
+#include <linux/mtd/nand_bch.h>
 #include <linux/interrupt.h>
 #include <linux/bitops.h>
 #include <linux/leds.h>
@@ -1581,7 +1582,7 @@ static int nand_do_read_ops(struct mtd_info *mtd, loff_t from,
 }
 
 /**
- * nand_read - [MTD Interface] MTD compability function for nand_do_read_ecc
+ * nand_read - [MTD Interface] MTD compatibility function for nand_do_read_ecc
  * @mtd:	MTD device structure
  * @from:	offset to read from
  * @len:	number of bytes to read
@@ -2377,7 +2378,7 @@ static int nand_do_write_oob(struct mtd_info *mtd, loff_t to,
 		return -EINVAL;
 	}
 
-	/* Do not allow reads past end of device */
+	/* Do not allow write past end of device */
 	if (unlikely(to >= mtd->size ||
 		     ops->ooboffs + ops->ooblen >
 			((mtd->size >> chip->page_shift) -
@@ -3248,7 +3249,7 @@ int nand_scan_tail(struct mtd_info *mtd)
 	/*
 	 * If no default placement scheme is given, select an appropriate one
 	 */
-	if (!chip->ecc.layout) {
+	if (!chip->ecc.layout && (chip->ecc.mode != NAND_ECC_SOFT_BCH)) {
 		switch (mtd->oobsize) {
 		case 8:
 			chip->ecc.layout = &nand_oob_8;
@@ -3351,6 +3352,40 @@ int nand_scan_tail(struct mtd_info *mtd)
 		chip->ecc.bytes = 3;
 		break;
 
+	case NAND_ECC_SOFT_BCH:
+		if (!mtd_nand_has_bch()) {
+			printk(KERN_WARNING "CONFIG_MTD_ECC_BCH not enabled\n");
+			BUG();
+		}
+		chip->ecc.calculate = nand_bch_calculate_ecc;
+		chip->ecc.correct = nand_bch_correct_data;
+		chip->ecc.read_page = nand_read_page_swecc;
+		chip->ecc.read_subpage = nand_read_subpage;
+		chip->ecc.write_page = nand_write_page_swecc;
+		chip->ecc.read_page_raw = nand_read_page_raw;
+		chip->ecc.write_page_raw = nand_write_page_raw;
+		chip->ecc.read_oob = nand_read_oob_std;
+		chip->ecc.write_oob = nand_write_oob_std;
+		/*
+		 * Board driver should supply ecc.size and ecc.bytes values to
+		 * select how many bits are correctable; see nand_bch_init()
+		 * for details.
+		 * Otherwise, default to 4 bits for large page devices
+		 */
+		if (!chip->ecc.size && (mtd->oobsize >= 64)) {
+			chip->ecc.size = 512;
+			chip->ecc.bytes = 7;
+		}
+		chip->ecc.priv = nand_bch_init(mtd,
+					       chip->ecc.size,
+					       chip->ecc.bytes,
+					       &chip->ecc.layout);
+		if (!chip->ecc.priv) {
+			printk(KERN_WARNING "BCH ECC initialization failed!\n");
+			BUG();
+		}
+		break;
+
 	case NAND_ECC_NONE:
 		printk(KERN_WARNING "NAND_ECC_NONE selected by board driver. "
 		       "This is not recommended !!\n");
@@ -3501,6 +3536,9 @@ void nand_release(struct mtd_info *mtd)
 {
 	struct nand_chip *chip = mtd->priv;
 
+	if (chip->ecc.mode == NAND_ECC_SOFT_BCH)
+		nand_bch_free((struct nand_bch_control *)chip->ecc.priv);
+
 #ifdef CONFIG_MTD_PARTITIONS
 	/* Deregister partitions */
 	del_mtd_partitions(mtd);
diff --git a/drivers/mtd/nand/nand_bbt.c b/drivers/mtd/nand/nand_bbt.c
index 6ebd869993aa..af46428286fe 100644
--- a/drivers/mtd/nand/nand_bbt.c
+++ b/drivers/mtd/nand/nand_bbt.c
@@ -945,7 +945,7 @@ static int check_create(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_desc
 		rd2 = NULL;
 		/* Per chip or per device ? */
 		chipsel = (td->options & NAND_BBT_PERCHIP) ? i : -1;
-		/* Mirrored table avilable ? */
+		/* Mirrored table available ? */
 		if (md) {
 			if (td->pages[i] == -1 && md->pages[i] == -1) {
 				writeops = 0x03;
@@ -1101,12 +1101,16 @@ static void mark_bbt_region(struct mtd_info *mtd, struct nand_bbt_descr *td)
 static void verify_bbt_descr(struct mtd_info *mtd, struct nand_bbt_descr *bd)
 {
 	struct nand_chip *this = mtd->priv;
-	u32 pattern_len = bd->len;
-	u32 bits = bd->options & NAND_BBT_NRBITS_MSK;
+	u32 pattern_len;
+	u32 bits;
 	u32 table_size;
 
 	if (!bd)
 		return;
+
+	pattern_len = bd->len;
+	bits = bd->options & NAND_BBT_NRBITS_MSK;
+
 	BUG_ON((this->options & NAND_USE_FLASH_BBT_NO_OOB) &&
 			!(this->options & NAND_USE_FLASH_BBT));
 	BUG_ON(!bits);
diff --git a/drivers/mtd/nand/nand_bch.c b/drivers/mtd/nand/nand_bch.c
new file mode 100644
index 000000000000..0f931e757116
--- /dev/null
+++ b/drivers/mtd/nand/nand_bch.c
@@ -0,0 +1,243 @@
+/*
+ * This file provides ECC correction for more than 1 bit per block of data,
+ * using binary BCH codes. It relies on the generic BCH library lib/bch.c.
+ *
+ * Copyright © 2011 Ivan Djelic <ivan.djelic@parrot.com>
+ *
+ * This file is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 or (at your option) any
+ * later version.
+ *
+ * This file is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this file; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/bitops.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/nand.h>
+#include <linux/mtd/nand_bch.h>
+#include <linux/bch.h>
+
+/**
+ * struct nand_bch_control - private NAND BCH control structure
+ * @bch:       BCH control structure
+ * @ecclayout: private ecc layout for this BCH configuration
+ * @errloc:    error location array
+ * @eccmask:   XOR ecc mask, allows erased pages to be decoded as valid
+ */
+struct nand_bch_control {
+	struct bch_control   *bch;
+	struct nand_ecclayout ecclayout;
+	unsigned int         *errloc;
+	unsigned char        *eccmask;
+};
+
+/**
+ * nand_bch_calculate_ecc - [NAND Interface] Calculate ECC for data block
+ * @mtd:	MTD block structure
+ * @buf:	input buffer with raw data
+ * @code:	output buffer with ECC
+ */
+int nand_bch_calculate_ecc(struct mtd_info *mtd, const unsigned char *buf,
+			   unsigned char *code)
+{
+	const struct nand_chip *chip = mtd->priv;
+	struct nand_bch_control *nbc = chip->ecc.priv;
+	unsigned int i;
+
+	memset(code, 0, chip->ecc.bytes);
+	encode_bch(nbc->bch, buf, chip->ecc.size, code);
+
+	/* apply mask so that an erased page is a valid codeword */
+	for (i = 0; i < chip->ecc.bytes; i++)
+		code[i] ^= nbc->eccmask[i];
+
+	return 0;
+}
+EXPORT_SYMBOL(nand_bch_calculate_ecc);
+
+/**
+ * nand_bch_correct_data - [NAND Interface] Detect and correct bit error(s)
+ * @mtd:	MTD block structure
+ * @buf:	raw data read from the chip
+ * @read_ecc:	ECC from the chip
+ * @calc_ecc:	the ECC calculated from raw data
+ *
+ * Detect and correct bit errors for a data byte block
+ */
+int nand_bch_correct_data(struct mtd_info *mtd, unsigned char *buf,
+			  unsigned char *read_ecc, unsigned char *calc_ecc)
+{
+	const struct nand_chip *chip = mtd->priv;
+	struct nand_bch_control *nbc = chip->ecc.priv;
+	unsigned int *errloc = nbc->errloc;
+	int i, count;
+
+	count = decode_bch(nbc->bch, NULL, chip->ecc.size, read_ecc, calc_ecc,
+			   NULL, errloc);
+	if (count > 0) {
+		for (i = 0; i < count; i++) {
+			if (errloc[i] < (chip->ecc.size*8))
+				/* error is located in data, correct it */
+				buf[errloc[i] >> 3] ^= (1 << (errloc[i] & 7));
+			/* else error in ecc, no action needed */
+
+			DEBUG(MTD_DEBUG_LEVEL0, "%s: corrected bitflip %u\n",
+			      __func__, errloc[i]);
+		}
+	} else if (count < 0) {
+		printk(KERN_ERR "ecc unrecoverable error\n");
+		count = -1;
+	}
+	return count;
+}
+EXPORT_SYMBOL(nand_bch_correct_data);
+
+/**
+ * nand_bch_init - [NAND Interface] Initialize NAND BCH error correction
+ * @mtd:	MTD block structure
+ * @eccsize:	ecc block size in bytes
+ * @eccbytes:	ecc length in bytes
+ * @ecclayout:	output default layout
+ *
+ * Returns:
+ *  a pointer to a new NAND BCH control structure, or NULL upon failure
+ *
+ * Initialize NAND BCH error correction. Parameters @eccsize and @eccbytes
+ * are used to compute BCH parameters m (Galois field order) and t (error
+ * correction capability). @eccbytes should be equal to the number of bytes
+ * required to store m*t bits, where m is such that 2^m-1 > @eccsize*8.
+ *
+ * Example: to configure 4 bit correction per 512 bytes, you should pass
+ * @eccsize = 512  (thus, m=13 is the smallest integer such that 2^m-1 > 512*8)
+ * @eccbytes = 7   (7 bytes are required to store m*t = 13*4 = 52 bits)
+ */
+struct nand_bch_control *
+nand_bch_init(struct mtd_info *mtd, unsigned int eccsize, unsigned int eccbytes,
+	      struct nand_ecclayout **ecclayout)
+{
+	unsigned int m, t, eccsteps, i;
+	struct nand_ecclayout *layout;
+	struct nand_bch_control *nbc = NULL;
+	unsigned char *erased_page;
+
+	if (!eccsize || !eccbytes) {
+		printk(KERN_WARNING "ecc parameters not supplied\n");
+		goto fail;
+	}
+
+	m = fls(1+8*eccsize);
+	t = (eccbytes*8)/m;
+
+	nbc = kzalloc(sizeof(*nbc), GFP_KERNEL);
+	if (!nbc)
+		goto fail;
+
+	nbc->bch = init_bch(m, t, 0);
+	if (!nbc->bch)
+		goto fail;
+
+	/* verify that eccbytes has the expected value */
+	if (nbc->bch->ecc_bytes != eccbytes) {
+		printk(KERN_WARNING "invalid eccbytes %u, should be %u\n",
+		       eccbytes, nbc->bch->ecc_bytes);
+		goto fail;
+	}
+
+	eccsteps = mtd->writesize/eccsize;
+
+	/* if no ecc placement scheme was provided, build one */
+	if (!*ecclayout) {
+
+		/* handle large page devices only */
+		if (mtd->oobsize < 64) {
+			printk(KERN_WARNING "must provide an oob scheme for "
+			       "oobsize %d\n", mtd->oobsize);
+			goto fail;
+		}
+
+		layout = &nbc->ecclayout;
+		layout->eccbytes = eccsteps*eccbytes;
+
+		/* reserve 2 bytes for bad block marker */
+		if (layout->eccbytes+2 > mtd->oobsize) {
+			printk(KERN_WARNING "no suitable oob scheme available "
+			       "for oobsize %d eccbytes %u\n", mtd->oobsize,
+			       eccbytes);
+			goto fail;
+		}
+		/* put ecc bytes at oob tail */
+		for (i = 0; i < layout->eccbytes; i++)
+			layout->eccpos[i] = mtd->oobsize-layout->eccbytes+i;
+
+		layout->oobfree[0].offset = 2;
+		layout->oobfree[0].length = mtd->oobsize-2-layout->eccbytes;
+
+		*ecclayout = layout;
+	}
+
+	/* sanity checks */
+	if (8*(eccsize+eccbytes) >= (1 << m)) {
+		printk(KERN_WARNING "eccsize %u is too large\n", eccsize);
+		goto fail;
+	}
+	if ((*ecclayout)->eccbytes != (eccsteps*eccbytes)) {
+		printk(KERN_WARNING "invalid ecc layout\n");
+		goto fail;
+	}
+
+	nbc->eccmask = kmalloc(eccbytes, GFP_KERNEL);
+	nbc->errloc = kmalloc(t*sizeof(*nbc->errloc), GFP_KERNEL);
+	if (!nbc->eccmask || !nbc->errloc)
+		goto fail;
+	/*
+	 * compute and store the inverted ecc of an erased ecc block
+	 */
+	erased_page = kmalloc(eccsize, GFP_KERNEL);
+	if (!erased_page)
+		goto fail;
+
+	memset(erased_page, 0xff, eccsize);
+	memset(nbc->eccmask, 0, eccbytes);
+	encode_bch(nbc->bch, erased_page, eccsize, nbc->eccmask);
+	kfree(erased_page);
+
+	for (i = 0; i < eccbytes; i++)
+		nbc->eccmask[i] ^= 0xff;
+
+	return nbc;
+fail:
+	nand_bch_free(nbc);
+	return NULL;
+}
+EXPORT_SYMBOL(nand_bch_init);
+
+/**
+ * nand_bch_free - [NAND Interface] Release NAND BCH ECC resources
+ * @nbc:	NAND BCH control structure
+ */
+void nand_bch_free(struct nand_bch_control *nbc)
+{
+	if (nbc) {
+		free_bch(nbc->bch);
+		kfree(nbc->errloc);
+		kfree(nbc->eccmask);
+		kfree(nbc);
+	}
+}
+EXPORT_SYMBOL(nand_bch_free);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Ivan Djelic <ivan.djelic@parrot.com>");
+MODULE_DESCRIPTION("NAND software BCH ECC support");
diff --git a/drivers/mtd/nand/nandsim.c b/drivers/mtd/nand/nandsim.c
index a5aa99f014ba..893d95bfea48 100644
--- a/drivers/mtd/nand/nandsim.c
+++ b/drivers/mtd/nand/nandsim.c
@@ -34,6 +34,7 @@
 #include <linux/string.h>
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/nand.h>
+#include <linux/mtd/nand_bch.h>
 #include <linux/mtd/partitions.h>
 #include <linux/delay.h>
 #include <linux/list.h>
@@ -108,6 +109,7 @@ static unsigned int rptwear = 0;
 static unsigned int overridesize = 0;
 static char *cache_file = NULL;
 static unsigned int bbt;
+static unsigned int bch;
 
 module_param(first_id_byte,  uint, 0400);
 module_param(second_id_byte, uint, 0400);
@@ -132,6 +134,7 @@ module_param(rptwear,        uint, 0400);
 module_param(overridesize,   uint, 0400);
 module_param(cache_file,     charp, 0400);
 module_param(bbt,	     uint, 0400);
+module_param(bch,	     uint, 0400);
 
 MODULE_PARM_DESC(first_id_byte,  "The first byte returned by NAND Flash 'read ID' command (manufacturer ID)");
 MODULE_PARM_DESC(second_id_byte, "The second byte returned by NAND Flash 'read ID' command (chip ID)");
@@ -159,12 +162,14 @@ MODULE_PARM_DESC(bitflips,       "Maximum number of random bit flips per page (z
 MODULE_PARM_DESC(gravepages,     "Pages that lose data [: maximum reads (defaults to 3)]"
 				 " separated by commas e.g. 1401:2 means page 1401"
 				 " can be read only twice before failing");
-MODULE_PARM_DESC(rptwear,        "Number of erases inbetween reporting wear, if not zero");
+MODULE_PARM_DESC(rptwear,        "Number of erases between reporting wear, if not zero");
 MODULE_PARM_DESC(overridesize,   "Specifies the NAND Flash size overriding the ID bytes. "
 				 "The size is specified in erase blocks and as the exponent of a power of two"
 				 " e.g. 5 means a size of 32 erase blocks");
 MODULE_PARM_DESC(cache_file,     "File to use to cache nand pages instead of memory");
 MODULE_PARM_DESC(bbt,		 "0 OOB, 1 BBT with marker in OOB, 2 BBT with marker in data area");
+MODULE_PARM_DESC(bch,		 "Enable BCH ecc and set how many bits should "
+				 "be correctable in 512-byte blocks");
 
 /* The largest possible page size */
 #define NS_LARGEST_PAGE_SIZE	4096
@@ -2309,7 +2314,43 @@ static int __init ns_init_module(void)
 	if ((retval = parse_gravepages()) != 0)
 		goto error;
 
-	if ((retval = nand_scan(nsmtd, 1)) != 0) {
+	retval = nand_scan_ident(nsmtd, 1, NULL);
+	if (retval) {
+		NS_ERR("cannot scan NAND Simulator device\n");
+		if (retval > 0)
+			retval = -ENXIO;
+		goto error;
+	}
+
+	if (bch) {
+		unsigned int eccsteps, eccbytes;
+		if (!mtd_nand_has_bch()) {
+			NS_ERR("BCH ECC support is disabled\n");
+			retval = -EINVAL;
+			goto error;
+		}
+		/* use 512-byte ecc blocks */
+		eccsteps = nsmtd->writesize/512;
+		eccbytes = (bch*13+7)/8;
+		/* do not bother supporting small page devices */
+		if ((nsmtd->oobsize < 64) || !eccsteps) {
+			NS_ERR("bch not available on small page devices\n");
+			retval = -EINVAL;
+			goto error;
+		}
+		if ((eccbytes*eccsteps+2) > nsmtd->oobsize) {
+			NS_ERR("invalid bch value %u\n", bch);
+			retval = -EINVAL;
+			goto error;
+		}
+		chip->ecc.mode = NAND_ECC_SOFT_BCH;
+		chip->ecc.size = 512;
+		chip->ecc.bytes = eccbytes;
+		NS_INFO("using %u-bit/%u bytes BCH ECC\n", bch, chip->ecc.size);
+	}
+
+	retval = nand_scan_tail(nsmtd);
+	if (retval) {
 		NS_ERR("can't register NAND Simulator\n");
 		if (retval > 0)
 			retval = -ENXIO;
diff --git a/drivers/mtd/nand/nomadik_nand.c b/drivers/mtd/nand/nomadik_nand.c
index 8c0b69375224..a045a4a581b6 100644
--- a/drivers/mtd/nand/nomadik_nand.c
+++ b/drivers/mtd/nand/nomadik_nand.c
@@ -151,7 +151,7 @@ static int nomadik_nand_probe(struct platform_device *pdev)
 	nand->options = pdata->options;
 
 	/*
-	 * Scan to find existance of the device
+	 * Scan to find existence of the device
 	 */
 	if (nand_scan(&host->mtd, 1)) {
 		ret = -ENXIO;
diff --git a/drivers/mtd/nand/omap2.c b/drivers/mtd/nand/omap2.c
index 7b8f1fffc528..da9a351c9d79 100644
--- a/drivers/mtd/nand/omap2.c
+++ b/drivers/mtd/nand/omap2.c
@@ -668,6 +668,8 @@ static void gen_true_ecc(u8 *ecc_buf)
  *
  * This function compares two ECC's and indicates if there is an error.
  * If the error can be corrected it will be corrected to the buffer.
+ * If there is no error, %0 is returned. If there is an error but it
+ * was corrected, %1 is returned. Otherwise, %-1 is returned.
  */
 static int omap_compare_ecc(u8 *ecc_data1,	/* read from NAND memory */
 			    u8 *ecc_data2,	/* read from register */
@@ -773,7 +775,7 @@ static int omap_compare_ecc(u8 *ecc_data1,	/* read from NAND memory */
 
 		page_data[find_byte] ^= (1 << find_bit);
 
-		return 0;
+		return 1;
 	default:
 		if (isEccFF) {
 			if (ecc_data2[0] == 0 &&
@@ -794,8 +796,11 @@ static int omap_compare_ecc(u8 *ecc_data1,	/* read from NAND memory */
  * @calc_ecc: ecc read from HW ECC registers
  *
  * Compares the ecc read from nand spare area with ECC registers values
- * and if ECC's mismached, it will call 'omap_compare_ecc' for error detection
- * and correction.
+ * and if ECC's mismatched, it will call 'omap_compare_ecc' for error
+ * detection and correction. If there are no errors, %0 is returned. If
+ * there were errors and all of the errors were corrected, the number of
+ * corrected errors is returned. If uncorrectable errors exist, %-1 is
+ * returned.
  */
 static int omap_correct_data(struct mtd_info *mtd, u_char *dat,
 				u_char *read_ecc, u_char *calc_ecc)
@@ -803,6 +808,7 @@ static int omap_correct_data(struct mtd_info *mtd, u_char *dat,
 	struct omap_nand_info *info = container_of(mtd, struct omap_nand_info,
 							mtd);
 	int blockCnt = 0, i = 0, ret = 0;
+	int stat = 0;
 
 	/* Ex NAND_ECC_HW12_2048 */
 	if ((info->nand.ecc.mode == NAND_ECC_HW) &&
@@ -816,12 +822,14 @@ static int omap_correct_data(struct mtd_info *mtd, u_char *dat,
 			ret = omap_compare_ecc(read_ecc, calc_ecc, dat);
 			if (ret < 0)
 				return ret;
+			/* keep track of the number of corrected errors */
+			stat += ret;
 		}
 		read_ecc += 3;
 		calc_ecc += 3;
 		dat      += 512;
 	}
-	return 0;
+	return stat;
 }
 
 /**
diff --git a/drivers/mtd/nand/pasemi_nand.c b/drivers/mtd/nand/pasemi_nand.c
index 59efa829ef24..20bfe5f15afd 100644
--- a/drivers/mtd/nand/pasemi_nand.c
+++ b/drivers/mtd/nand/pasemi_nand.c
@@ -157,7 +157,7 @@ static int __devinit pasemi_nand_probe(struct platform_device *ofdev)
 	/* Enable the following for a flash based bad block table */
 	chip->options = NAND_USE_FLASH_BBT | NAND_NO_AUTOINCR;
 
-	/* Scan to find existance of the device */
+	/* Scan to find existence of the device */
 	if (nand_scan(pasemi_nand_mtd, 1)) {
 		err = -ENXIO;
 		goto out_lpc;
diff --git a/drivers/mtd/nand/plat_nand.c b/drivers/mtd/nand/plat_nand.c
index 317aff428e42..caf5a736340a 100644
--- a/drivers/mtd/nand/plat_nand.c
+++ b/drivers/mtd/nand/plat_nand.c
@@ -95,7 +95,7 @@ static int __devinit plat_nand_probe(struct platform_device *pdev)
 			goto out;
 	}
 
-	/* Scan to find existance of the device */
+	/* Scan to find existence of the device */
 	if (nand_scan(&data->mtd, pdata->chip.nr_chips)) {
 		err = -ENXIO;
 		goto out;
diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c
index ea2c288df3f6..ff0701276d65 100644
--- a/drivers/mtd/nand/pxa3xx_nand.c
+++ b/drivers/mtd/nand/pxa3xx_nand.c
@@ -27,6 +27,8 @@
 #include <plat/pxa3xx_nand.h>
 
 #define	CHIP_DELAY_TIMEOUT	(2 * HZ/10)
+#define NAND_STOP_DELAY		(2 * HZ/50)
+#define PAGE_CHUNK_SIZE		(2048)
 
 /* registers and bit definitions */
 #define NDCR		(0x00) /* Control register */
@@ -52,16 +54,18 @@
 #define NDCR_ND_MODE		(0x3 << 21)
 #define NDCR_NAND_MODE   	(0x0)
 #define NDCR_CLR_PG_CNT		(0x1 << 20)
-#define NDCR_CLR_ECC		(0x1 << 19)
+#define NDCR_STOP_ON_UNCOR	(0x1 << 19)
 #define NDCR_RD_ID_CNT_MASK	(0x7 << 16)
 #define NDCR_RD_ID_CNT(x)	(((x) << 16) & NDCR_RD_ID_CNT_MASK)
 
 #define NDCR_RA_START		(0x1 << 15)
 #define NDCR_PG_PER_BLK		(0x1 << 14)
 #define NDCR_ND_ARB_EN		(0x1 << 12)
+#define NDCR_INT_MASK           (0xFFF)
 
 #define NDSR_MASK		(0xfff)
-#define NDSR_RDY		(0x1 << 11)
+#define NDSR_RDY                (0x1 << 12)
+#define NDSR_FLASH_RDY          (0x1 << 11)
 #define NDSR_CS0_PAGED		(0x1 << 10)
 #define NDSR_CS1_PAGED		(0x1 << 9)
 #define NDSR_CS0_CMDD		(0x1 << 8)
@@ -74,6 +78,7 @@
 #define NDSR_RDDREQ		(0x1 << 1)
 #define NDSR_WRCMDREQ		(0x1)
 
+#define NDCB0_ST_ROW_EN         (0x1 << 26)
 #define NDCB0_AUTO_RS		(0x1 << 25)
 #define NDCB0_CSEL		(0x1 << 24)
 #define NDCB0_CMD_TYPE_MASK	(0x7 << 21)
@@ -104,18 +109,21 @@ enum {
 };
 
 enum {
-	STATE_READY	= 0,
+	STATE_IDLE = 0,
 	STATE_CMD_HANDLE,
 	STATE_DMA_READING,
 	STATE_DMA_WRITING,
 	STATE_DMA_DONE,
 	STATE_PIO_READING,
 	STATE_PIO_WRITING,
+	STATE_CMD_DONE,
+	STATE_READY,
 };
 
 struct pxa3xx_nand_info {
 	struct nand_chip	nand_chip;
 
+	struct nand_hw_control	controller;
 	struct platform_device	 *pdev;
 	struct pxa3xx_nand_cmdset *cmdset;
 
@@ -126,6 +134,7 @@ struct pxa3xx_nand_info {
 	unsigned int 		buf_start;
 	unsigned int		buf_count;
 
+	struct mtd_info         *mtd;
 	/* DMA information */
 	int			drcmr_dat;
 	int			drcmr_cmd;
@@ -149,6 +158,7 @@ struct pxa3xx_nand_info {
 
 	int			use_ecc;	/* use HW ECC ? */
 	int			use_dma;	/* use DMA ? */
+	int			is_ready;
 
 	unsigned int		page_size;	/* page size of attached chip */
 	unsigned int		data_size;	/* data size in FIFO */
@@ -174,7 +184,7 @@ struct pxa3xx_nand_info {
 
 static int use_dma = 1;
 module_param(use_dma, bool, 0444);
-MODULE_PARM_DESC(use_dma, "enable DMA for data transfering to/from NAND HW");
+MODULE_PARM_DESC(use_dma, "enable DMA for data transferring to/from NAND HW");
 
 /*
  * Default NAND flash controller configuration setup by the
@@ -201,20 +211,22 @@ static struct pxa3xx_nand_timing timing[] = {
 };
 
 static struct pxa3xx_nand_flash builtin_flash_types[] = {
-	{      0,   0, 2048,  8,  8,    0, &default_cmdset, &timing[0] },
-	{ 0x46ec,  32,  512, 16, 16, 4096, &default_cmdset, &timing[1] },
-	{ 0xdaec,  64, 2048,  8,  8, 2048, &default_cmdset, &timing[1] },
-	{ 0xd7ec, 128, 4096,  8,  8, 8192, &default_cmdset, &timing[1] },
-	{ 0xa12c,  64, 2048,  8,  8, 1024, &default_cmdset, &timing[2] },
-	{ 0xb12c,  64, 2048, 16, 16, 1024, &default_cmdset, &timing[2] },
-	{ 0xdc2c,  64, 2048,  8,  8, 4096, &default_cmdset, &timing[2] },
-	{ 0xcc2c,  64, 2048, 16, 16, 4096, &default_cmdset, &timing[2] },
-	{ 0xba20,  64, 2048, 16, 16, 2048, &default_cmdset, &timing[3] },
+{ "DEFAULT FLASH",      0,   0, 2048,  8,  8,    0, &timing[0] },
+{ "64MiB 16-bit",  0x46ec,  32,  512, 16, 16, 4096, &timing[1] },
+{ "256MiB 8-bit",  0xdaec,  64, 2048,  8,  8, 2048, &timing[1] },
+{ "4GiB 8-bit",    0xd7ec, 128, 4096,  8,  8, 8192, &timing[1] },
+{ "128MiB 8-bit",  0xa12c,  64, 2048,  8,  8, 1024, &timing[2] },
+{ "128MiB 16-bit", 0xb12c,  64, 2048, 16, 16, 1024, &timing[2] },
+{ "512MiB 8-bit",  0xdc2c,  64, 2048,  8,  8, 4096, &timing[2] },
+{ "512MiB 16-bit", 0xcc2c,  64, 2048, 16, 16, 4096, &timing[2] },
+{ "256MiB 16-bit", 0xba20,  64, 2048, 16, 16, 2048, &timing[3] },
 };
 
 /* Define a default flash type setting serve as flash detecting only */
 #define DEFAULT_FLASH_TYPE (&builtin_flash_types[0])
 
+const char *mtd_names[] = {"pxa3xx_nand-0", NULL};
+
 #define NDTR0_tCH(c)	(min((c), 7) << 19)
 #define NDTR0_tCS(c)	(min((c), 7) << 16)
 #define NDTR0_tWH(c)	(min((c), 7) << 11)
@@ -252,25 +264,6 @@ static void pxa3xx_nand_set_timing(struct pxa3xx_nand_info *info,
 	nand_writel(info, NDTR1CS0, ndtr1);
 }
 
-#define WAIT_EVENT_TIMEOUT	10
-
-static int wait_for_event(struct pxa3xx_nand_info *info, uint32_t event)
-{
-	int timeout = WAIT_EVENT_TIMEOUT;
-	uint32_t ndsr;
-
-	while (timeout--) {
-		ndsr = nand_readl(info, NDSR) & NDSR_MASK;
-		if (ndsr & event) {
-			nand_writel(info, NDSR, ndsr);
-			return 0;
-		}
-		udelay(10);
-	}
-
-	return -ETIMEDOUT;
-}
-
 static void pxa3xx_set_datasize(struct pxa3xx_nand_info *info)
 {
 	int oob_enable = info->reg_ndcr & NDCR_SPARE_EN;
@@ -291,69 +284,45 @@ static void pxa3xx_set_datasize(struct pxa3xx_nand_info *info)
 	}
 }
 
-static int prepare_read_prog_cmd(struct pxa3xx_nand_info *info,
-		uint16_t cmd, int column, int page_addr)
+/**
+ * NOTE: it is a must to set ND_RUN firstly, then write
+ * command buffer, otherwise, it does not work.
+ * We enable all the interrupt at the same time, and
+ * let pxa3xx_nand_irq to handle all logic.
+ */
+static void pxa3xx_nand_start(struct pxa3xx_nand_info *info)
 {
-	const struct pxa3xx_nand_cmdset *cmdset = info->cmdset;
-	pxa3xx_set_datasize(info);
-
-	/* generate values for NDCBx registers */
-	info->ndcb0 = cmd | ((cmd & 0xff00) ? NDCB0_DBC : 0);
-	info->ndcb1 = 0;
-	info->ndcb2 = 0;
-	info->ndcb0 |= NDCB0_ADDR_CYC(info->row_addr_cycles + info->col_addr_cycles);
-
-	if (info->col_addr_cycles == 2) {
-		/* large block, 2 cycles for column address
-		 * row address starts from 3rd cycle
-		 */
-		info->ndcb1 |= page_addr << 16;
-		if (info->row_addr_cycles == 3)
-			info->ndcb2 = (page_addr >> 16) & 0xff;
-	} else
-		/* small block, 1 cycles for column address
-		 * row address starts from 2nd cycle
-		 */
-		info->ndcb1 = page_addr << 8;
-
-	if (cmd == cmdset->program)
-		info->ndcb0 |= NDCB0_CMD_TYPE(1) | NDCB0_AUTO_RS;
+	uint32_t ndcr;
 
-	return 0;
-}
+	ndcr = info->reg_ndcr;
+	ndcr |= info->use_ecc ? NDCR_ECC_EN : 0;
+	ndcr |= info->use_dma ? NDCR_DMA_EN : 0;
+	ndcr |= NDCR_ND_RUN;
 
-static int prepare_erase_cmd(struct pxa3xx_nand_info *info,
-			uint16_t cmd, int page_addr)
-{
-	info->ndcb0 = cmd | ((cmd & 0xff00) ? NDCB0_DBC : 0);
-	info->ndcb0 |= NDCB0_CMD_TYPE(2) | NDCB0_AUTO_RS | NDCB0_ADDR_CYC(3);
-	info->ndcb1 = page_addr;
-	info->ndcb2 = 0;
-	return 0;
+	/* clear status bits and run */
+	nand_writel(info, NDCR, 0);
+	nand_writel(info, NDSR, NDSR_MASK);
+	nand_writel(info, NDCR, ndcr);
 }
 
-static int prepare_other_cmd(struct pxa3xx_nand_info *info, uint16_t cmd)
+static void pxa3xx_nand_stop(struct pxa3xx_nand_info *info)
 {
-	const struct pxa3xx_nand_cmdset *cmdset = info->cmdset;
-
-	info->ndcb0 = cmd | ((cmd & 0xff00) ? NDCB0_DBC : 0);
-	info->ndcb1 = 0;
-	info->ndcb2 = 0;
+	uint32_t ndcr;
+	int timeout = NAND_STOP_DELAY;
 
-	info->oob_size = 0;
-	if (cmd == cmdset->read_id) {
-		info->ndcb0 |= NDCB0_CMD_TYPE(3);
-		info->data_size = 8;
-	} else if (cmd == cmdset->read_status) {
-		info->ndcb0 |= NDCB0_CMD_TYPE(4);
-		info->data_size = 8;
-	} else if (cmd == cmdset->reset || cmd == cmdset->lock ||
-		   cmd == cmdset->unlock) {
-		info->ndcb0 |= NDCB0_CMD_TYPE(5);
-	} else
-		return -EINVAL;
+	/* wait RUN bit in NDCR become 0 */
+	ndcr = nand_readl(info, NDCR);
+	while ((ndcr & NDCR_ND_RUN) && (timeout-- > 0)) {
+		ndcr = nand_readl(info, NDCR);
+		udelay(1);
+	}
 
-	return 0;
+	if (timeout <= 0) {
+		ndcr &= ~NDCR_ND_RUN;
+		nand_writel(info, NDCR, ndcr);
+	}
+	/* clear status bits */
+	nand_writel(info, NDSR, NDSR_MASK);
 }
 
 static void enable_int(struct pxa3xx_nand_info *info, uint32_t int_mask)
@@ -372,39 +341,8 @@ static void disable_int(struct pxa3xx_nand_info *info, uint32_t int_mask)
 	nand_writel(info, NDCR, ndcr | int_mask);
 }
 
-/* NOTE: it is a must to set ND_RUN firstly, then write command buffer
- * otherwise, it does not work
- */
-static int write_cmd(struct pxa3xx_nand_info *info)
+static void handle_data_pio(struct pxa3xx_nand_info *info)
 {
-	uint32_t ndcr;
-
-	/* clear status bits and run */
-	nand_writel(info, NDSR, NDSR_MASK);
-
-	ndcr = info->reg_ndcr;
-
-	ndcr |= info->use_ecc ? NDCR_ECC_EN : 0;
-	ndcr |= info->use_dma ? NDCR_DMA_EN : 0;
-	ndcr |= NDCR_ND_RUN;
-
-	nand_writel(info, NDCR, ndcr);
-
-	if (wait_for_event(info, NDSR_WRCMDREQ)) {
-		printk(KERN_ERR "timed out writing command\n");
-		return -ETIMEDOUT;
-	}
-
-	nand_writel(info, NDCB0, info->ndcb0);
-	nand_writel(info, NDCB0, info->ndcb1);
-	nand_writel(info, NDCB0, info->ndcb2);
-	return 0;
-}
-
-static int handle_data_pio(struct pxa3xx_nand_info *info)
-{
-	int ret, timeout = CHIP_DELAY_TIMEOUT;
-
 	switch (info->state) {
 	case STATE_PIO_WRITING:
 		__raw_writesl(info->mmio_base + NDDB, info->data_buff,
@@ -412,14 +350,6 @@ static int handle_data_pio(struct pxa3xx_nand_info *info)
 		if (info->oob_size > 0)
 			__raw_writesl(info->mmio_base + NDDB, info->oob_buff,
 					DIV_ROUND_UP(info->oob_size, 4));
-
-		enable_int(info, NDSR_CS0_BBD | NDSR_CS0_CMDD);
-
-		ret = wait_for_completion_timeout(&info->cmd_complete, timeout);
-		if (!ret) {
-			printk(KERN_ERR "program command time out\n");
-			return -1;
-		}
 		break;
 	case STATE_PIO_READING:
 		__raw_readsl(info->mmio_base + NDDB, info->data_buff,
@@ -431,14 +361,11 @@ static int handle_data_pio(struct pxa3xx_nand_info *info)
 	default:
 		printk(KERN_ERR "%s: invalid state %d\n", __func__,
 				info->state);
-		return -EINVAL;
+		BUG();
 	}
-
-	info->state = STATE_READY;
-	return 0;
 }
 
-static void start_data_dma(struct pxa3xx_nand_info *info, int dir_out)
+static void start_data_dma(struct pxa3xx_nand_info *info)
 {
 	struct pxa_dma_desc *desc = info->data_desc;
 	int dma_len = ALIGN(info->data_size + info->oob_size, 32);
@@ -446,14 +373,21 @@ static void start_data_dma(struct pxa3xx_nand_info *info, int dir_out)
 	desc->ddadr = DDADR_STOP;
 	desc->dcmd = DCMD_ENDIRQEN | DCMD_WIDTH4 | DCMD_BURST32 | dma_len;
 
-	if (dir_out) {
+	switch (info->state) {
+	case STATE_DMA_WRITING:
 		desc->dsadr = info->data_buff_phys;
 		desc->dtadr = info->mmio_phys + NDDB;
 		desc->dcmd |= DCMD_INCSRCADDR | DCMD_FLOWTRG;
-	} else {
+		break;
+	case STATE_DMA_READING:
 		desc->dtadr = info->data_buff_phys;
 		desc->dsadr = info->mmio_phys + NDDB;
 		desc->dcmd |= DCMD_INCTRGADDR | DCMD_FLOWSRC;
+		break;
+	default:
+		printk(KERN_ERR "%s: invalid state %d\n", __func__,
+				info->state);
+		BUG();
 	}
 
 	DRCMR(info->drcmr_dat) = DRCMR_MAPVLD | info->data_dma_ch;
@@ -471,93 +405,62 @@ static void pxa3xx_nand_data_dma_irq(int channel, void *data)
 
 	if (dcsr & DCSR_BUSERR) {
 		info->retcode = ERR_DMABUSERR;
-		complete(&info->cmd_complete);
 	}
 
-	if (info->state == STATE_DMA_WRITING) {
-		info->state = STATE_DMA_DONE;
-		enable_int(info, NDSR_CS0_BBD | NDSR_CS0_CMDD);
-	} else {
-		info->state = STATE_READY;
-		complete(&info->cmd_complete);
-	}
+	info->state = STATE_DMA_DONE;
+	enable_int(info, NDCR_INT_MASK);
+	nand_writel(info, NDSR, NDSR_WRDREQ | NDSR_RDDREQ);
 }
 
 static irqreturn_t pxa3xx_nand_irq(int irq, void *devid)
 {
 	struct pxa3xx_nand_info *info = devid;
-	unsigned int status;
+	unsigned int status, is_completed = 0;
 
 	status = nand_readl(info, NDSR);
 
-	if (status & (NDSR_RDDREQ | NDSR_DBERR | NDSR_SBERR)) {
-		if (status & NDSR_DBERR)
-			info->retcode = ERR_DBERR;
-		else if (status & NDSR_SBERR)
-			info->retcode = ERR_SBERR;
-
-		disable_int(info, NDSR_RDDREQ | NDSR_DBERR | NDSR_SBERR);
-
-		if (info->use_dma) {
-			info->state = STATE_DMA_READING;
-			start_data_dma(info, 0);
-		} else {
-			info->state = STATE_PIO_READING;
-			complete(&info->cmd_complete);
-		}
-	} else if (status & NDSR_WRDREQ) {
-		disable_int(info, NDSR_WRDREQ);
+	if (status & NDSR_DBERR)
+		info->retcode = ERR_DBERR;
+	if (status & NDSR_SBERR)
+		info->retcode = ERR_SBERR;
+	if (status & (NDSR_RDDREQ | NDSR_WRDREQ)) {
+		/* whether use dma to transfer data */
 		if (info->use_dma) {
-			info->state = STATE_DMA_WRITING;
-			start_data_dma(info, 1);
+			disable_int(info, NDCR_INT_MASK);
+			info->state = (status & NDSR_RDDREQ) ?
+				      STATE_DMA_READING : STATE_DMA_WRITING;
+			start_data_dma(info);
+			goto NORMAL_IRQ_EXIT;
 		} else {
-			info->state = STATE_PIO_WRITING;
-			complete(&info->cmd_complete);
+			info->state = (status & NDSR_RDDREQ) ?
+				      STATE_PIO_READING : STATE_PIO_WRITING;
+			handle_data_pio(info);
 		}
-	} else if (status & (NDSR_CS0_BBD | NDSR_CS0_CMDD)) {
-		if (status & NDSR_CS0_BBD)
-			info->retcode = ERR_BBERR;
-
-		disable_int(info, NDSR_CS0_BBD | NDSR_CS0_CMDD);
-		info->state = STATE_READY;
-		complete(&info->cmd_complete);
 	}
-	nand_writel(info, NDSR, status);
-	return IRQ_HANDLED;
-}
-
-static int pxa3xx_nand_do_cmd(struct pxa3xx_nand_info *info, uint32_t event)
-{
-	uint32_t ndcr;
-	int ret, timeout = CHIP_DELAY_TIMEOUT;
-
-	if (write_cmd(info)) {
-		info->retcode = ERR_SENDCMD;
-		goto fail_stop;
+	if (status & NDSR_CS0_CMDD) {
+		info->state = STATE_CMD_DONE;
+		is_completed = 1;
 	}
-
-	info->state = STATE_CMD_HANDLE;
-
-	enable_int(info, event);
-
-	ret = wait_for_completion_timeout(&info->cmd_complete, timeout);
-	if (!ret) {
-		printk(KERN_ERR "command execution timed out\n");
-		info->retcode = ERR_SENDCMD;
-		goto fail_stop;
+	if (status & NDSR_FLASH_RDY) {
+		info->is_ready = 1;
+		info->state = STATE_READY;
 	}
 
-	if (info->use_dma == 0 && info->data_size > 0)
-		if (handle_data_pio(info))
-			goto fail_stop;
-
-	return 0;
+	if (status & NDSR_WRCMDREQ) {
+		nand_writel(info, NDSR, NDSR_WRCMDREQ);
+		status &= ~NDSR_WRCMDREQ;
+		info->state = STATE_CMD_HANDLE;
+		nand_writel(info, NDCB0, info->ndcb0);
+		nand_writel(info, NDCB0, info->ndcb1);
+		nand_writel(info, NDCB0, info->ndcb2);
+	}
 
-fail_stop:
-	ndcr = nand_readl(info, NDCR);
-	nand_writel(info, NDCR, ndcr & ~NDCR_ND_RUN);
-	udelay(10);
-	return -ETIMEDOUT;
+	/* clear NDSR to let the controller exit the IRQ */
+	nand_writel(info, NDSR, status);
+	if (is_completed)
+		complete(&info->cmd_complete);
+NORMAL_IRQ_EXIT:
+	return IRQ_HANDLED;
 }
 
 static int pxa3xx_nand_dev_ready(struct mtd_info *mtd)
@@ -574,125 +477,218 @@ static inline int is_buf_blank(uint8_t *buf, size_t len)
 	return 1;
 }
 
-static void pxa3xx_nand_cmdfunc(struct mtd_info *mtd, unsigned command,
-				int column, int page_addr)
+static int prepare_command_pool(struct pxa3xx_nand_info *info, int command,
+		uint16_t column, int page_addr)
 {
-	struct pxa3xx_nand_info *info = mtd->priv;
-	const struct pxa3xx_nand_cmdset *cmdset = info->cmdset;
-	int ret;
+	uint16_t cmd;
+	int addr_cycle, exec_cmd, ndcb0;
+	struct mtd_info *mtd = info->mtd;
+
+	ndcb0 = 0;
+	addr_cycle = 0;
+	exec_cmd = 1;
+
+	/* reset data and oob column point to handle data */
+	info->buf_start		= 0;
+	info->buf_count		= 0;
+	info->oob_size		= 0;
+	info->use_ecc		= 0;
+	info->is_ready		= 0;
+	info->retcode		= ERR_NONE;
 
-	info->use_dma = (use_dma) ? 1 : 0;
-	info->use_ecc = 0;
-	info->data_size = 0;
-	info->state = STATE_READY;
+	switch (command) {
+	case NAND_CMD_READ0:
+	case NAND_CMD_PAGEPROG:
+		info->use_ecc = 1;
+	case NAND_CMD_READOOB:
+		pxa3xx_set_datasize(info);
+		break;
+	case NAND_CMD_SEQIN:
+		exec_cmd = 0;
+		break;
+	default:
+		info->ndcb1 = 0;
+		info->ndcb2 = 0;
+		break;
+	}
 
-	init_completion(&info->cmd_complete);
+	info->ndcb0 = ndcb0;
+	addr_cycle = NDCB0_ADDR_CYC(info->row_addr_cycles
+				    + info->col_addr_cycles);
 
 	switch (command) {
 	case NAND_CMD_READOOB:
-		/* disable HW ECC to get all the OOB data */
-		info->buf_count = mtd->writesize + mtd->oobsize;
-		info->buf_start = mtd->writesize + column;
-		memset(info->data_buff, 0xFF, info->buf_count);
+	case NAND_CMD_READ0:
+		cmd = info->cmdset->read1;
+		if (command == NAND_CMD_READOOB)
+			info->buf_start = mtd->writesize + column;
+		else
+			info->buf_start = column;
 
-		if (prepare_read_prog_cmd(info, cmdset->read1, column, page_addr))
-			break;
+		if (unlikely(info->page_size < PAGE_CHUNK_SIZE))
+			info->ndcb0 |= NDCB0_CMD_TYPE(0)
+					| addr_cycle
+					| (cmd & NDCB0_CMD1_MASK);
+		else
+			info->ndcb0 |= NDCB0_CMD_TYPE(0)
+					| NDCB0_DBC
+					| addr_cycle
+					| cmd;
 
-		pxa3xx_nand_do_cmd(info, NDSR_RDDREQ | NDSR_DBERR | NDSR_SBERR);
+	case NAND_CMD_SEQIN:
+		/* small page addr setting */
+		if (unlikely(info->page_size < PAGE_CHUNK_SIZE)) {
+			info->ndcb1 = ((page_addr & 0xFFFFFF) << 8)
+					| (column & 0xFF);
 
-		/* We only are OOB, so if the data has error, does not matter */
-		if (info->retcode == ERR_DBERR)
-			info->retcode = ERR_NONE;
-		break;
+			info->ndcb2 = 0;
+		} else {
+			info->ndcb1 = ((page_addr & 0xFFFF) << 16)
+					| (column & 0xFFFF);
+
+			if (page_addr & 0xFF0000)
+				info->ndcb2 = (page_addr & 0xFF0000) >> 16;
+			else
+				info->ndcb2 = 0;
+		}
 
-	case NAND_CMD_READ0:
-		info->use_ecc = 1;
-		info->retcode = ERR_NONE;
-		info->buf_start = column;
 		info->buf_count = mtd->writesize + mtd->oobsize;
 		memset(info->data_buff, 0xFF, info->buf_count);
 
-		if (prepare_read_prog_cmd(info, cmdset->read1, column, page_addr))
+		break;
+
+	case NAND_CMD_PAGEPROG:
+		if (is_buf_blank(info->data_buff,
+					(mtd->writesize + mtd->oobsize))) {
+			exec_cmd = 0;
 			break;
+		}
 
-		pxa3xx_nand_do_cmd(info, NDSR_RDDREQ | NDSR_DBERR | NDSR_SBERR);
+		cmd = info->cmdset->program;
+		info->ndcb0 |= NDCB0_CMD_TYPE(0x1)
+				| NDCB0_AUTO_RS
+				| NDCB0_ST_ROW_EN
+				| NDCB0_DBC
+				| cmd
+				| addr_cycle;
+		break;
 
-		if (info->retcode == ERR_DBERR) {
-			/* for blank page (all 0xff), HW will calculate its ECC as
-			 * 0, which is different from the ECC information within
-			 * OOB, ignore such double bit errors
-			 */
-			if (is_buf_blank(info->data_buff, mtd->writesize))
-				info->retcode = ERR_NONE;
-		}
+	case NAND_CMD_READID:
+		cmd = info->cmdset->read_id;
+		info->buf_count = info->read_id_bytes;
+		info->ndcb0 |= NDCB0_CMD_TYPE(3)
+				| NDCB0_ADDR_CYC(1)
+				| cmd;
+
+		info->data_size = 8;
 		break;
-	case NAND_CMD_SEQIN:
-		info->buf_start = column;
-		info->buf_count = mtd->writesize + mtd->oobsize;
-		memset(info->data_buff, 0xff, info->buf_count);
+	case NAND_CMD_STATUS:
+		cmd = info->cmdset->read_status;
+		info->buf_count = 1;
+		info->ndcb0 |= NDCB0_CMD_TYPE(4)
+				| NDCB0_ADDR_CYC(1)
+				| cmd;
 
-		/* save column/page_addr for next CMD_PAGEPROG */
-		info->seqin_column = column;
-		info->seqin_page_addr = page_addr;
+		info->data_size = 8;
 		break;
-	case NAND_CMD_PAGEPROG:
-		info->use_ecc = (info->seqin_column >= mtd->writesize) ? 0 : 1;
 
-		if (prepare_read_prog_cmd(info, cmdset->program,
-				info->seqin_column, info->seqin_page_addr))
-			break;
+	case NAND_CMD_ERASE1:
+		cmd = info->cmdset->erase;
+		info->ndcb0 |= NDCB0_CMD_TYPE(2)
+				| NDCB0_AUTO_RS
+				| NDCB0_ADDR_CYC(3)
+				| NDCB0_DBC
+				| cmd;
+		info->ndcb1 = page_addr;
+		info->ndcb2 = 0;
 
-		pxa3xx_nand_do_cmd(info, NDSR_WRDREQ);
 		break;
-	case NAND_CMD_ERASE1:
-		if (prepare_erase_cmd(info, cmdset->erase, page_addr))
-			break;
+	case NAND_CMD_RESET:
+		cmd = info->cmdset->reset;
+		info->ndcb0 |= NDCB0_CMD_TYPE(5)
+				| cmd;
 
-		pxa3xx_nand_do_cmd(info, NDSR_CS0_BBD | NDSR_CS0_CMDD);
 		break;
+
 	case NAND_CMD_ERASE2:
+		exec_cmd = 0;
 		break;
-	case NAND_CMD_READID:
-	case NAND_CMD_STATUS:
-		info->use_dma = 0;	/* force PIO read */
-		info->buf_start = 0;
-		info->buf_count = (command == NAND_CMD_READID) ?
-				info->read_id_bytes : 1;
-
-		if (prepare_other_cmd(info, (command == NAND_CMD_READID) ?
-				cmdset->read_id : cmdset->read_status))
-			break;
 
-		pxa3xx_nand_do_cmd(info, NDSR_RDDREQ);
+	default:
+		exec_cmd = 0;
+		printk(KERN_ERR "pxa3xx-nand: non-supported"
+			" command %x\n", command);
 		break;
-	case NAND_CMD_RESET:
-		if (prepare_other_cmd(info, cmdset->reset))
-			break;
+	}
 
-		ret = pxa3xx_nand_do_cmd(info, NDSR_CS0_CMDD);
-		if (ret == 0) {
-			int timeout = 2;
-			uint32_t ndcr;
+	return exec_cmd;
+}
 
-			while (timeout--) {
-				if (nand_readl(info, NDSR) & NDSR_RDY)
-					break;
-				msleep(10);
-			}
+static void pxa3xx_nand_cmdfunc(struct mtd_info *mtd, unsigned command,
+				int column, int page_addr)
+{
+	struct pxa3xx_nand_info *info = mtd->priv;
+	int ret, exec_cmd;
 
-			ndcr = nand_readl(info, NDCR);
-			nand_writel(info, NDCR, ndcr & ~NDCR_ND_RUN);
+	/*
+	 * if this is a x16 device ,then convert the input
+	 * "byte" address into a "word" address appropriate
+	 * for indexing a word-oriented device
+	 */
+	if (info->reg_ndcr & NDCR_DWIDTH_M)
+		column /= 2;
+
+	exec_cmd = prepare_command_pool(info, command, column, page_addr);
+	if (exec_cmd) {
+		init_completion(&info->cmd_complete);
+		pxa3xx_nand_start(info);
+
+		ret = wait_for_completion_timeout(&info->cmd_complete,
+				CHIP_DELAY_TIMEOUT);
+		if (!ret) {
+			printk(KERN_ERR "Wait time out!!!\n");
+			/* Stop State Machine for next command cycle */
+			pxa3xx_nand_stop(info);
 		}
-		break;
-	default:
-		printk(KERN_ERR "non-supported command.\n");
-		break;
+		info->state = STATE_IDLE;
 	}
+}
+
+static void pxa3xx_nand_write_page_hwecc(struct mtd_info *mtd,
+		struct nand_chip *chip, const uint8_t *buf)
+{
+	chip->write_buf(mtd, buf, mtd->writesize);
+	chip->write_buf(mtd, chip->oob_poi, mtd->oobsize);
+}
 
-	if (info->retcode == ERR_DBERR) {
-		printk(KERN_ERR "double bit error @ page %08x\n", page_addr);
-		info->retcode = ERR_NONE;
+static int pxa3xx_nand_read_page_hwecc(struct mtd_info *mtd,
+		struct nand_chip *chip, uint8_t *buf, int page)
+{
+	struct pxa3xx_nand_info *info = mtd->priv;
+
+	chip->read_buf(mtd, buf, mtd->writesize);
+	chip->read_buf(mtd, chip->oob_poi, mtd->oobsize);
+
+	if (info->retcode == ERR_SBERR) {
+		switch (info->use_ecc) {
+		case 1:
+			mtd->ecc_stats.corrected++;
+			break;
+		case 0:
+		default:
+			break;
+		}
+	} else if (info->retcode == ERR_DBERR) {
+		/*
+		 * for blank page (all 0xff), HW will calculate its ECC as
+		 * 0, which is different from the ECC information within
+		 * OOB, ignore such double bit errors
+		 */
+		if (is_buf_blank(buf, mtd->writesize))
+			mtd->ecc_stats.failed++;
 	}
+
+	return 0;
 }
 
 static uint8_t pxa3xx_nand_read_byte(struct mtd_info *mtd)
@@ -769,73 +765,12 @@ static int pxa3xx_nand_waitfunc(struct mtd_info *mtd, struct nand_chip *this)
 	return 0;
 }
 
-static void pxa3xx_nand_ecc_hwctl(struct mtd_info *mtd, int mode)
-{
-	return;
-}
-
-static int pxa3xx_nand_ecc_calculate(struct mtd_info *mtd,
-		const uint8_t *dat, uint8_t *ecc_code)
-{
-	return 0;
-}
-
-static int pxa3xx_nand_ecc_correct(struct mtd_info *mtd,
-		uint8_t *dat, uint8_t *read_ecc, uint8_t *calc_ecc)
-{
-	struct pxa3xx_nand_info *info = mtd->priv;
-	/*
-	 * Any error include ERR_SEND_CMD, ERR_DBERR, ERR_BUSERR, we
-	 * consider it as a ecc error which will tell the caller the
-	 * read fail We have distinguish all the errors, but the
-	 * nand_read_ecc only check this function return value
-	 *
-	 * Corrected (single-bit) errors must also be noted.
-	 */
-	if (info->retcode == ERR_SBERR)
-		return 1;
-	else if (info->retcode != ERR_NONE)
-		return -1;
-
-	return 0;
-}
-
-static int __readid(struct pxa3xx_nand_info *info, uint32_t *id)
-{
-	const struct pxa3xx_nand_cmdset *cmdset = info->cmdset;
-	uint32_t ndcr;
-	uint8_t  id_buff[8];
-
-	if (prepare_other_cmd(info, cmdset->read_id)) {
-		printk(KERN_ERR "failed to prepare command\n");
-		return -EINVAL;
-	}
-
-	/* Send command */
-	if (write_cmd(info))
-		goto fail_timeout;
-
-	/* Wait for CMDDM(command done successfully) */
-	if (wait_for_event(info, NDSR_RDDREQ))
-		goto fail_timeout;
-
-	__raw_readsl(info->mmio_base + NDDB, id_buff, 2);
-	*id = id_buff[0] | (id_buff[1] << 8);
-	return 0;
-
-fail_timeout:
-	ndcr = nand_readl(info, NDCR);
-	nand_writel(info, NDCR, ndcr & ~NDCR_ND_RUN);
-	udelay(10);
-	return -ETIMEDOUT;
-}
-
 static int pxa3xx_nand_config_flash(struct pxa3xx_nand_info *info,
 				    const struct pxa3xx_nand_flash *f)
 {
 	struct platform_device *pdev = info->pdev;
 	struct pxa3xx_nand_platform_data *pdata = pdev->dev.platform_data;
-	uint32_t ndcr = 0x00000FFF; /* disable all interrupts */
+	uint32_t ndcr = 0x0; /* enable all interrupts */
 
 	if (f->page_size != 2048 && f->page_size != 512)
 		return -EINVAL;
@@ -844,9 +779,8 @@ static int pxa3xx_nand_config_flash(struct pxa3xx_nand_info *info,
 		return -EINVAL;
 
 	/* calculate flash information */
-	info->cmdset = f->cmdset;
+	info->cmdset = &default_cmdset;
 	info->page_size = f->page_size;
-	info->oob_buff = info->data_buff + f->page_size;
 	info->read_id_bytes = (f->page_size == 2048) ? 4 : 2;
 
 	/* calculate addressing information */
@@ -876,87 +810,18 @@ static int pxa3xx_nand_config_flash(struct pxa3xx_nand_info *info,
 static int pxa3xx_nand_detect_config(struct pxa3xx_nand_info *info)
 {
 	uint32_t ndcr = nand_readl(info, NDCR);
-	struct nand_flash_dev *type = NULL;
-	uint32_t id = -1, page_per_block, num_blocks;
-	int i;
-
-	page_per_block = ndcr & NDCR_PG_PER_BLK ? 64 : 32;
 	info->page_size = ndcr & NDCR_PAGE_SZ ? 2048 : 512;
-	/* set info fields needed to __readid */
+	/* set info fields needed to read id */
 	info->read_id_bytes = (info->page_size == 2048) ? 4 : 2;
 	info->reg_ndcr = ndcr;
 	info->cmdset = &default_cmdset;
 
-	if (__readid(info, &id))
-		return -ENODEV;
-
-	/* Lookup the flash id */
-	id = (id >> 8) & 0xff;		/* device id is byte 2 */
-	for (i = 0; nand_flash_ids[i].name != NULL; i++) {
-		if (id == nand_flash_ids[i].id) {
-			type =  &nand_flash_ids[i];
-			break;
-		}
-	}
-
-	if (!type)
-		return -ENODEV;
-
-	/* fill the missing flash information */
-	i = __ffs(page_per_block * info->page_size);
-	num_blocks = type->chipsize << (20 - i);
-
-	/* calculate addressing information */
-	info->col_addr_cycles = (info->page_size == 2048) ? 2 : 1;
-
-	if (num_blocks * page_per_block > 65536)
-		info->row_addr_cycles = 3;
-	else
-		info->row_addr_cycles = 2;
-
 	info->ndtr0cs0 = nand_readl(info, NDTR0CS0);
 	info->ndtr1cs0 = nand_readl(info, NDTR1CS0);
 
 	return 0;
 }
 
-static int pxa3xx_nand_detect_flash(struct pxa3xx_nand_info *info,
-				    const struct pxa3xx_nand_platform_data *pdata)
-{
-	const struct pxa3xx_nand_flash *f;
-	uint32_t id = -1;
-	int i;
-
-	if (pdata->keep_config)
-		if (pxa3xx_nand_detect_config(info) == 0)
-			return 0;
-
-	/* we use default timing to detect id */
-	f = DEFAULT_FLASH_TYPE;
-	pxa3xx_nand_config_flash(info, f);
-	if (__readid(info, &id))
-		goto fail_detect;
-
-	for (i=0; i<ARRAY_SIZE(builtin_flash_types) + pdata->num_flash - 1; i++) {
-		/* we first choose the flash definition from platfrom */
-		if (i < pdata->num_flash)
-			f = pdata->flash + i;
-		else
-			f = &builtin_flash_types[i - pdata->num_flash + 1];
-		if (f->chip_id == id) {
-			dev_info(&info->pdev->dev, "detect chip id: 0x%x\n", id);
-			pxa3xx_nand_config_flash(info, f);
-			return 0;
-		}
-	}
-
-	dev_warn(&info->pdev->dev,
-		 "failed to detect configured nand flash; found %04x instead of\n",
-		 id);
-fail_detect:
-	return -ENODEV;
-}
-
 /* the maximum possible buffer size for large page with OOB data
  * is: 2048 + 64 = 2112 bytes, allocate a page here for both the
  * data buffer and the DMA descriptor
@@ -998,82 +863,144 @@ static int pxa3xx_nand_init_buff(struct pxa3xx_nand_info *info)
 	return 0;
 }
 
-static struct nand_ecclayout hw_smallpage_ecclayout = {
-	.eccbytes = 6,
-	.eccpos = {8, 9, 10, 11, 12, 13 },
-	.oobfree = { {2, 6} }
-};
+static int pxa3xx_nand_sensing(struct pxa3xx_nand_info *info)
+{
+	struct mtd_info *mtd = info->mtd;
+	struct nand_chip *chip = mtd->priv;
 
-static struct nand_ecclayout hw_largepage_ecclayout = {
-	.eccbytes = 24,
-	.eccpos = {
-		40, 41, 42, 43, 44, 45, 46, 47,
-		48, 49, 50, 51, 52, 53, 54, 55,
-		56, 57, 58, 59, 60, 61, 62, 63},
-	.oobfree = { {2, 38} }
-};
+	/* use the common timing to make a try */
+	pxa3xx_nand_config_flash(info, &builtin_flash_types[0]);
+	chip->cmdfunc(mtd, NAND_CMD_RESET, 0, 0);
+	if (info->is_ready)
+		return 1;
+	else
+		return 0;
+}
 
-static void pxa3xx_nand_init_mtd(struct mtd_info *mtd,
-				 struct pxa3xx_nand_info *info)
+static int pxa3xx_nand_scan(struct mtd_info *mtd)
 {
-	struct nand_chip *this = &info->nand_chip;
-
-	this->options = (info->reg_ndcr & NDCR_DWIDTH_C) ? NAND_BUSWIDTH_16: 0;
-
-	this->waitfunc		= pxa3xx_nand_waitfunc;
-	this->select_chip	= pxa3xx_nand_select_chip;
-	this->dev_ready		= pxa3xx_nand_dev_ready;
-	this->cmdfunc		= pxa3xx_nand_cmdfunc;
-	this->read_word		= pxa3xx_nand_read_word;
-	this->read_byte		= pxa3xx_nand_read_byte;
-	this->read_buf		= pxa3xx_nand_read_buf;
-	this->write_buf		= pxa3xx_nand_write_buf;
-	this->verify_buf	= pxa3xx_nand_verify_buf;
-
-	this->ecc.mode		= NAND_ECC_HW;
-	this->ecc.hwctl		= pxa3xx_nand_ecc_hwctl;
-	this->ecc.calculate	= pxa3xx_nand_ecc_calculate;
-	this->ecc.correct	= pxa3xx_nand_ecc_correct;
-	this->ecc.size		= info->page_size;
-
-	if (info->page_size == 2048)
-		this->ecc.layout = &hw_largepage_ecclayout;
+	struct pxa3xx_nand_info *info = mtd->priv;
+	struct platform_device *pdev = info->pdev;
+	struct pxa3xx_nand_platform_data *pdata = pdev->dev.platform_data;
+	struct nand_flash_dev pxa3xx_flash_ids[2] = { {NULL,}, {NULL,} };
+	const struct pxa3xx_nand_flash *f = NULL;
+	struct nand_chip *chip = mtd->priv;
+	uint32_t id = -1;
+	uint64_t chipsize;
+	int i, ret, num;
+
+	if (pdata->keep_config && !pxa3xx_nand_detect_config(info))
+		goto KEEP_CONFIG;
+
+	ret = pxa3xx_nand_sensing(info);
+	if (!ret) {
+		kfree(mtd);
+		info->mtd = NULL;
+		printk(KERN_INFO "There is no nand chip on cs 0!\n");
+
+		return -EINVAL;
+	}
+
+	chip->cmdfunc(mtd, NAND_CMD_READID, 0, 0);
+	id = *((uint16_t *)(info->data_buff));
+	if (id != 0)
+		printk(KERN_INFO "Detect a flash id %x\n", id);
+	else {
+		kfree(mtd);
+		info->mtd = NULL;
+		printk(KERN_WARNING "Read out ID 0, potential timing set wrong!!\n");
+
+		return -EINVAL;
+	}
+
+	num = ARRAY_SIZE(builtin_flash_types) + pdata->num_flash - 1;
+	for (i = 0; i < num; i++) {
+		if (i < pdata->num_flash)
+			f = pdata->flash + i;
+		else
+			f = &builtin_flash_types[i - pdata->num_flash + 1];
+
+		/* find the chip in default list */
+		if (f->chip_id == id)
+			break;
+	}
+
+	if (i >= (ARRAY_SIZE(builtin_flash_types) + pdata->num_flash - 1)) {
+		kfree(mtd);
+		info->mtd = NULL;
+		printk(KERN_ERR "ERROR!! flash not defined!!!\n");
+
+		return -EINVAL;
+	}
+
+	pxa3xx_nand_config_flash(info, f);
+	pxa3xx_flash_ids[0].name = f->name;
+	pxa3xx_flash_ids[0].id = (f->chip_id >> 8) & 0xffff;
+	pxa3xx_flash_ids[0].pagesize = f->page_size;
+	chipsize = (uint64_t)f->num_blocks * f->page_per_block * f->page_size;
+	pxa3xx_flash_ids[0].chipsize = chipsize >> 20;
+	pxa3xx_flash_ids[0].erasesize = f->page_size * f->page_per_block;
+	if (f->flash_width == 16)
+		pxa3xx_flash_ids[0].options = NAND_BUSWIDTH_16;
+KEEP_CONFIG:
+	if (nand_scan_ident(mtd, 1, pxa3xx_flash_ids))
+		return -ENODEV;
+	/* calculate addressing information */
+	info->col_addr_cycles = (mtd->writesize >= 2048) ? 2 : 1;
+	info->oob_buff = info->data_buff + mtd->writesize;
+	if ((mtd->size >> chip->page_shift) > 65536)
+		info->row_addr_cycles = 3;
 	else
-		this->ecc.layout = &hw_smallpage_ecclayout;
+		info->row_addr_cycles = 2;
+	mtd->name = mtd_names[0];
+	chip->ecc.mode = NAND_ECC_HW;
+	chip->ecc.size = f->page_size;
+
+	chip->options = (f->flash_width == 16) ? NAND_BUSWIDTH_16 : 0;
+	chip->options |= NAND_NO_AUTOINCR;
+	chip->options |= NAND_NO_READRDY;
 
-	this->chip_delay = 25;
+	return nand_scan_tail(mtd);
 }
 
-static int pxa3xx_nand_probe(struct platform_device *pdev)
+static
+struct pxa3xx_nand_info *alloc_nand_resource(struct platform_device *pdev)
 {
-	struct pxa3xx_nand_platform_data *pdata;
 	struct pxa3xx_nand_info *info;
-	struct nand_chip *this;
+	struct nand_chip *chip;
 	struct mtd_info *mtd;
 	struct resource *r;
-	int ret = 0, irq;
-
-	pdata = pdev->dev.platform_data;
-
-	if (!pdata) {
-		dev_err(&pdev->dev, "no platform data defined\n");
-		return -ENODEV;
-	}
+	int ret, irq;
 
 	mtd = kzalloc(sizeof(struct mtd_info) + sizeof(struct pxa3xx_nand_info),
 			GFP_KERNEL);
 	if (!mtd) {
 		dev_err(&pdev->dev, "failed to allocate memory\n");
-		return -ENOMEM;
+		return NULL;
 	}
 
 	info = (struct pxa3xx_nand_info *)(&mtd[1]);
+	chip = (struct nand_chip *)(&mtd[1]);
 	info->pdev = pdev;
-
-	this = &info->nand_chip;
+	info->mtd = mtd;
 	mtd->priv = info;
 	mtd->owner = THIS_MODULE;
 
+	chip->ecc.read_page	= pxa3xx_nand_read_page_hwecc;
+	chip->ecc.write_page	= pxa3xx_nand_write_page_hwecc;
+	chip->controller        = &info->controller;
+	chip->waitfunc		= pxa3xx_nand_waitfunc;
+	chip->select_chip	= pxa3xx_nand_select_chip;
+	chip->dev_ready		= pxa3xx_nand_dev_ready;
+	chip->cmdfunc		= pxa3xx_nand_cmdfunc;
+	chip->read_word		= pxa3xx_nand_read_word;
+	chip->read_byte		= pxa3xx_nand_read_byte;
+	chip->read_buf		= pxa3xx_nand_read_buf;
+	chip->write_buf		= pxa3xx_nand_write_buf;
+	chip->verify_buf	= pxa3xx_nand_verify_buf;
+
+	spin_lock_init(&chip->controller->lock);
+	init_waitqueue_head(&chip->controller->wq);
 	info->clk = clk_get(&pdev->dev, NULL);
 	if (IS_ERR(info->clk)) {
 		dev_err(&pdev->dev, "failed to get nand clock\n");
@@ -1141,43 +1068,12 @@ static int pxa3xx_nand_probe(struct platform_device *pdev)
 		goto fail_free_buf;
 	}
 
-	ret = pxa3xx_nand_detect_flash(info, pdata);
-	if (ret) {
-		dev_err(&pdev->dev, "failed to detect flash\n");
-		ret = -ENODEV;
-		goto fail_free_irq;
-	}
-
-	pxa3xx_nand_init_mtd(mtd, info);
-
-	platform_set_drvdata(pdev, mtd);
-
-	if (nand_scan(mtd, 1)) {
-		dev_err(&pdev->dev, "failed to scan nand\n");
-		ret = -ENXIO;
-		goto fail_free_irq;
-	}
-
-#ifdef CONFIG_MTD_PARTITIONS
-	if (mtd_has_cmdlinepart()) {
-		static const char *probes[] = { "cmdlinepart", NULL };
-		struct mtd_partition *parts;
-		int nr_parts;
-
-		nr_parts = parse_mtd_partitions(mtd, probes, &parts, 0);
-
-		if (nr_parts)
-			return add_mtd_partitions(mtd, parts, nr_parts);
-	}
+	platform_set_drvdata(pdev, info);
 
-	return add_mtd_partitions(mtd, pdata->parts, pdata->nr_parts);
-#else
-	return 0;
-#endif
+	return info;
 
-fail_free_irq:
-	free_irq(irq, info);
 fail_free_buf:
+	free_irq(irq, info);
 	if (use_dma) {
 		pxa_free_dma(info->data_dma_ch);
 		dma_free_coherent(&pdev->dev, info->data_buff_size,
@@ -1193,22 +1089,18 @@ fail_put_clk:
 	clk_put(info->clk);
 fail_free_mtd:
 	kfree(mtd);
-	return ret;
+	return NULL;
 }
 
 static int pxa3xx_nand_remove(struct platform_device *pdev)
 {
-	struct mtd_info *mtd = platform_get_drvdata(pdev);
-	struct pxa3xx_nand_info *info = mtd->priv;
+	struct pxa3xx_nand_info *info = platform_get_drvdata(pdev);
+	struct mtd_info *mtd = info->mtd;
 	struct resource *r;
 	int irq;
 
 	platform_set_drvdata(pdev, NULL);
 
-	del_mtd_device(mtd);
-#ifdef CONFIG_MTD_PARTITIONS
-	del_mtd_partitions(mtd);
-#endif
 	irq = platform_get_irq(pdev, 0);
 	if (irq >= 0)
 		free_irq(irq, info);
@@ -1226,17 +1118,62 @@ static int pxa3xx_nand_remove(struct platform_device *pdev)
 	clk_disable(info->clk);
 	clk_put(info->clk);
 
-	kfree(mtd);
+	if (mtd) {
+		del_mtd_device(mtd);
+#ifdef CONFIG_MTD_PARTITIONS
+		del_mtd_partitions(mtd);
+#endif
+		kfree(mtd);
+	}
 	return 0;
 }
 
+static int pxa3xx_nand_probe(struct platform_device *pdev)
+{
+	struct pxa3xx_nand_platform_data *pdata;
+	struct pxa3xx_nand_info *info;
+
+	pdata = pdev->dev.platform_data;
+	if (!pdata) {
+		dev_err(&pdev->dev, "no platform data defined\n");
+		return -ENODEV;
+	}
+
+	info = alloc_nand_resource(pdev);
+	if (info == NULL)
+		return -ENOMEM;
+
+	if (pxa3xx_nand_scan(info->mtd)) {
+		dev_err(&pdev->dev, "failed to scan nand\n");
+		pxa3xx_nand_remove(pdev);
+		return -ENODEV;
+	}
+
+#ifdef CONFIG_MTD_PARTITIONS
+	if (mtd_has_cmdlinepart()) {
+		const char *probes[] = { "cmdlinepart", NULL };
+		struct mtd_partition *parts;
+		int nr_parts;
+
+		nr_parts = parse_mtd_partitions(info->mtd, probes, &parts, 0);
+
+		if (nr_parts)
+			return add_mtd_partitions(info->mtd, parts, nr_parts);
+	}
+
+	return add_mtd_partitions(info->mtd, pdata->parts, pdata->nr_parts);
+#else
+	return 0;
+#endif
+}
+
 #ifdef CONFIG_PM
 static int pxa3xx_nand_suspend(struct platform_device *pdev, pm_message_t state)
 {
-	struct mtd_info *mtd = (struct mtd_info *)platform_get_drvdata(pdev);
-	struct pxa3xx_nand_info *info = mtd->priv;
+	struct pxa3xx_nand_info *info = platform_get_drvdata(pdev);
+	struct mtd_info *mtd = info->mtd;
 
-	if (info->state != STATE_READY) {
+	if (info->state) {
 		dev_err(&pdev->dev, "driver busy, state = %d\n", info->state);
 		return -EAGAIN;
 	}
@@ -1246,8 +1183,8 @@ static int pxa3xx_nand_suspend(struct platform_device *pdev, pm_message_t state)
 
 static int pxa3xx_nand_resume(struct platform_device *pdev)
 {
-	struct mtd_info *mtd = (struct mtd_info *)platform_get_drvdata(pdev);
-	struct pxa3xx_nand_info *info = mtd->priv;
+	struct pxa3xx_nand_info *info = platform_get_drvdata(pdev);
+	struct mtd_info *mtd = info->mtd;
 
 	nand_writel(info, NDTR0CS0, info->ndtr0cs0);
 	nand_writel(info, NDTR1CS0, info->ndtr1cs0);
diff --git a/drivers/mtd/nand/r852.c b/drivers/mtd/nand/r852.c
index 6322d1fb5d62..cae2e013c986 100644
--- a/drivers/mtd/nand/r852.c
+++ b/drivers/mtd/nand/r852.c
@@ -185,7 +185,7 @@ static void r852_do_dma(struct r852_device *dev, uint8_t *buf, int do_read)
 
 	dbg_verbose("doing dma %s ", do_read ? "read" : "write");
 
-	/* Set intial dma state: for reading first fill on board buffer,
+	/* Set initial dma state: for reading first fill on board buffer,
 	  from device, for writes first fill the buffer  from memory*/
 	dev->dma_state = do_read ? DMA_INTERNAL : DMA_MEMORY;
 
@@ -766,7 +766,7 @@ static irqreturn_t r852_irq(int irq, void *data)
 		ret = IRQ_HANDLED;
 		dev->card_detected = !!(card_status & R852_CARD_IRQ_INSERT);
 
-		/* we shouldn't recieve any interrupts if we wait for card
+		/* we shouldn't receive any interrupts if we wait for card
 			to settle */
 		WARN_ON(dev->card_unstable);
 
@@ -794,13 +794,13 @@ static irqreturn_t r852_irq(int irq, void *data)
 		ret = IRQ_HANDLED;
 
 		if (dma_status & R852_DMA_IRQ_ERROR) {
-			dbg("recieved dma error IRQ");
+			dbg("received dma error IRQ");
 			r852_dma_done(dev, -EIO);
 			complete(&dev->dma_done);
 			goto out;
 		}
 
-		/* recieved DMA interrupt out of nowhere? */
+		/* received DMA interrupt out of nowhere? */
 		WARN_ON_ONCE(dev->dma_stage == 0);
 
 		if (dev->dma_stage == 0)
@@ -960,7 +960,7 @@ int  r852_probe(struct pci_dev *pci_dev, const struct pci_device_id *id)
 		&dev->card_detect_work, 0);
 
 
-	printk(KERN_NOTICE DRV_NAME ": driver loaded succesfully\n");
+	printk(KERN_NOTICE DRV_NAME ": driver loaded successfully\n");
 	return 0;
 
 error10:
diff --git a/drivers/mtd/nand/sh_flctl.c b/drivers/mtd/nand/sh_flctl.c
index 546c2f0eb2e8..81bbb5ee148d 100644
--- a/drivers/mtd/nand/sh_flctl.c
+++ b/drivers/mtd/nand/sh_flctl.c
@@ -78,7 +78,7 @@ static void start_translation(struct sh_flctl *flctl)
 
 static void timeout_error(struct sh_flctl *flctl, const char *str)
 {
-	dev_err(&flctl->pdev->dev, "Timeout occured in %s\n", str);
+	dev_err(&flctl->pdev->dev, "Timeout occurred in %s\n", str);
 }
 
 static void wait_completion(struct sh_flctl *flctl)
diff --git a/drivers/mtd/nand/sm_common.c b/drivers/mtd/nand/sm_common.c
index 4a8f367c295c..57cc80cd01a3 100644
--- a/drivers/mtd/nand/sm_common.c
+++ b/drivers/mtd/nand/sm_common.c
@@ -121,7 +121,7 @@ int sm_register_device(struct mtd_info *mtd, int smartmedia)
 	if (ret)
 		return ret;
 
-	/* Bad block marker postion */
+	/* Bad block marker position */
 	chip->badblockpos = 0x05;
 	chip->badblockbits = 7;
 	chip->block_markbad = sm_block_markbad;
diff --git a/drivers/mtd/nand/tmio_nand.c b/drivers/mtd/nand/tmio_nand.c
index 38fb16771f85..14c578707824 100644
--- a/drivers/mtd/nand/tmio_nand.c
+++ b/drivers/mtd/nand/tmio_nand.c
@@ -4,7 +4,7 @@
  * Slightly murky pre-git history of the driver:
  *
  * Copyright (c) Ian Molton 2004, 2005, 2008
- *    Original work, independant of sharps code. Included hardware ECC support.
+ *    Original work, independent of sharps code. Included hardware ECC support.
  *    Hard ECC did not work for writes in the early revisions.
  * Copyright (c) Dirk Opfer 2005.
  *    Modifications developed from sharps code but
diff --git a/drivers/mtd/onenand/omap2.c b/drivers/mtd/onenand/omap2.c
index 14a49abe057e..1fcb41adab07 100644
--- a/drivers/mtd/onenand/omap2.c
+++ b/drivers/mtd/onenand/omap2.c
@@ -608,7 +608,7 @@ static int omap2_onenand_enable(struct mtd_info *mtd)
 
 	ret = regulator_enable(c->regulator);
 	if (ret != 0)
-		dev_err(&c->pdev->dev, "cant enable regulator\n");
+		dev_err(&c->pdev->dev, "can't enable regulator\n");
 
 	return ret;
 }
@@ -620,7 +620,7 @@ static int omap2_onenand_disable(struct mtd_info *mtd)
 
 	ret = regulator_disable(c->regulator);
 	if (ret != 0)
-		dev_err(&c->pdev->dev, "cant disable regulator\n");
+		dev_err(&c->pdev->dev, "can't disable regulator\n");
 
 	return ret;
 }
@@ -629,6 +629,7 @@ static int __devinit omap2_onenand_probe(struct platform_device *pdev)
 {
 	struct omap_onenand_platform_data *pdata;
 	struct omap2_onenand *c;
+	struct onenand_chip *this;
 	int r;
 
 	pdata = pdev->dev.platform_data;
@@ -726,9 +727,8 @@ static int __devinit omap2_onenand_probe(struct platform_device *pdev)
 
 	c->mtd.dev.parent = &pdev->dev;
 
+	this = &c->onenand;
 	if (c->dma_channel >= 0) {
-		struct onenand_chip *this = &c->onenand;
-
 		this->wait = omap2_onenand_wait;
 		if (cpu_is_omap34xx()) {
 			this->read_bufferram = omap3_onenand_read_bufferram;
@@ -749,6 +749,9 @@ static int __devinit omap2_onenand_probe(struct platform_device *pdev)
 		c->onenand.disable = omap2_onenand_disable;
 	}
 
+	if (pdata->skip_initial_unlocking)
+		this->options |= ONENAND_SKIP_INITIAL_UNLOCKING;
+
 	if ((r = onenand_scan(&c->mtd, 1)) < 0)
 		goto err_release_regulator;
 
diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c
index bac41caa8df7..56a8b2005bda 100644
--- a/drivers/mtd/onenand/onenand_base.c
+++ b/drivers/mtd/onenand/onenand_base.c
@@ -1132,6 +1132,8 @@ static int onenand_mlc_read_ops_nolock(struct mtd_info *mtd, loff_t from,
 			onenand_update_bufferram(mtd, from, !ret);
 			if (ret == -EBADMSG)
 				ret = 0;
+			if (ret)
+				break;
 		}
 
 		this->read_bufferram(mtd, ONENAND_DATARAM, buf, column, thislen);
@@ -1646,11 +1648,10 @@ static int onenand_verify(struct mtd_info *mtd, const u_char *buf, loff_t addr,
 	int ret = 0;
 	int thislen, column;
 
+	column = addr & (this->writesize - 1);
+
 	while (len != 0) {
-		thislen = min_t(int, this->writesize, len);
-		column = addr & (this->writesize - 1);
-		if (column + thislen > this->writesize)
-			thislen = this->writesize - column;
+		thislen = min_t(int, this->writesize - column, len);
 
 		this->command(mtd, ONENAND_CMD_READ, addr, this->writesize);
 
@@ -1664,12 +1665,13 @@ static int onenand_verify(struct mtd_info *mtd, const u_char *buf, loff_t addr,
 
 		this->read_bufferram(mtd, ONENAND_DATARAM, this->verify_buf, 0, mtd->writesize);
 
-		if (memcmp(buf, this->verify_buf, thislen))
+		if (memcmp(buf, this->verify_buf + column, thislen))
 			return -EBADMSG;
 
 		len -= thislen;
 		buf += thislen;
 		addr += thislen;
+		column = 0;
 	}
 
 	return 0;
@@ -4083,7 +4085,8 @@ int onenand_scan(struct mtd_info *mtd, int maxchips)
 	mtd->writebufsize = mtd->writesize;
 
 	/* Unlock whole block */
-	this->unlock_all(mtd);
+	if (!(this->options & ONENAND_SKIP_INITIAL_UNLOCKING))
+		this->unlock_all(mtd);
 
 	ret = this->scan_bbt(mtd);
 	if ((!FLEXONENAND(this)) || ret)
diff --git a/drivers/mtd/onenand/onenand_sim.c b/drivers/mtd/onenand/onenand_sim.c
index 8b246061d511..5ef3bd547772 100644
--- a/drivers/mtd/onenand/onenand_sim.c
+++ b/drivers/mtd/onenand/onenand_sim.c
@@ -321,7 +321,7 @@ static void onenand_data_handle(struct onenand_chip *this, int cmd,
 				continue;
 			if (memcmp(dest + off, ffchars, this->subpagesize) &&
 			    onenand_check_overwrite(dest + off, src + off, this->subpagesize))
-				printk(KERN_ERR "over-write happend at 0x%08x\n", offset);
+				printk(KERN_ERR "over-write happened at 0x%08x\n", offset);
 			memcpy(dest + off, src + off, this->subpagesize);
 		}
 		/* Fall through */
@@ -335,7 +335,7 @@ static void onenand_data_handle(struct onenand_chip *this, int cmd,
 		dest = ONENAND_CORE_SPARE(flash, this, offset);
 		if (memcmp(dest, ffchars, mtd->oobsize) &&
 		    onenand_check_overwrite(dest, src, mtd->oobsize))
-			printk(KERN_ERR "OOB: over-write happend at 0x%08x\n",
+			printk(KERN_ERR "OOB: over-write happened at 0x%08x\n",
 			       offset);
 		memcpy(dest, src, mtd->oobsize);
 		break;
diff --git a/drivers/mtd/sm_ftl.c b/drivers/mtd/sm_ftl.c
index ac0d6a8613b5..ed3d6cd2c6dc 100644
--- a/drivers/mtd/sm_ftl.c
+++ b/drivers/mtd/sm_ftl.c
@@ -64,12 +64,16 @@ struct attribute_group *sm_create_sysfs_attributes(struct sm_ftl *ftl)
 					SM_SMALL_PAGE - SM_CIS_VENDOR_OFFSET);
 
 	char *vendor = kmalloc(vendor_len, GFP_KERNEL);
+	if (!vendor)
+		goto error1;
 	memcpy(vendor, ftl->cis_buffer + SM_CIS_VENDOR_OFFSET, vendor_len);
 	vendor[vendor_len] = 0;
 
 	/* Initialize sysfs attributes */
 	vendor_attribute =
 		kzalloc(sizeof(struct sm_sysfs_attribute), GFP_KERNEL);
+	if (!vendor_attribute)
+		goto error2;
 
 	sysfs_attr_init(&vendor_attribute->dev_attr.attr);
 
@@ -83,12 +87,24 @@ struct attribute_group *sm_create_sysfs_attributes(struct sm_ftl *ftl)
 	/* Create array of pointers to the attributes */
 	attributes = kzalloc(sizeof(struct attribute *) * (NUM_ATTRIBUTES + 1),
 								GFP_KERNEL);
+	if (!attributes)
+		goto error3;
 	attributes[0] = &vendor_attribute->dev_attr.attr;
 
 	/* Finally create the attribute group */
 	attr_group = kzalloc(sizeof(struct attribute_group), GFP_KERNEL);
+	if (!attr_group)
+		goto error4;
 	attr_group->attrs = attributes;
 	return attr_group;
+error4:
+	kfree(attributes);
+error3:
+	kfree(vendor_attribute);
+error2:
+	kfree(vendor);
+error1:
+	return NULL;
 }
 
 void sm_delete_sysfs_attributes(struct sm_ftl *ftl)
@@ -524,7 +540,7 @@ static int sm_check_block(struct sm_ftl *ftl, int zone, int block)
 			return -EIO;
 	}
 
-	/* If the block is sliced (partialy erased usually) erase it */
+	/* If the block is sliced (partially erased usually) erase it */
 	if (i == 2) {
 		sm_erase_block(ftl, zone, block, 1);
 		return 1;
@@ -862,7 +878,7 @@ static int sm_init_zone(struct sm_ftl *ftl, int zone_num)
 	return 0;
 }
 
-/* Get and automaticly initialize an FTL mapping for one zone */
+/* Get and automatically initialize an FTL mapping for one zone */
 struct ftl_zone *sm_get_zone(struct sm_ftl *ftl, int zone_num)
 {
 	struct ftl_zone *zone;
@@ -1178,6 +1194,8 @@ static void sm_add_mtd(struct mtd_blktrans_ops *tr, struct mtd_info *mtd)
 	}
 
 	ftl->disk_attributes = sm_create_sysfs_attributes(ftl);
+	if (!ftl->disk_attributes)
+		goto error6;
 	trans->disk_attributes = ftl->disk_attributes;
 
 	sm_printk("Found %d MiB xD/SmartMedia FTL on mtd%d",
diff --git a/drivers/mtd/tests/mtd_speedtest.c b/drivers/mtd/tests/mtd_speedtest.c
index 161feeb7b8b9..627d4e2466a3 100644
--- a/drivers/mtd/tests/mtd_speedtest.c
+++ b/drivers/mtd/tests/mtd_speedtest.c
@@ -16,7 +16,7 @@
  *
  * Test read and write speed of a MTD device.
  *
- * Author: Adrian Hunter <ext-adrian.hunter@nokia.com>
+ * Author: Adrian Hunter <adrian.hunter@nokia.com>
  */
 
 #include <linux/init.h>
@@ -33,6 +33,11 @@ static int dev;
 module_param(dev, int, S_IRUGO);
 MODULE_PARM_DESC(dev, "MTD device number to use");
 
+static int count;
+module_param(count, int, S_IRUGO);
+MODULE_PARM_DESC(count, "Maximum number of eraseblocks to use "
+			"(0 means use all)");
+
 static struct mtd_info *mtd;
 static unsigned char *iobuf;
 static unsigned char *bbt;
@@ -89,6 +94,33 @@ static int erase_eraseblock(int ebnum)
 	return 0;
 }
 
+static int multiblock_erase(int ebnum, int blocks)
+{
+	int err;
+	struct erase_info ei;
+	loff_t addr = ebnum * mtd->erasesize;
+
+	memset(&ei, 0, sizeof(struct erase_info));
+	ei.mtd  = mtd;
+	ei.addr = addr;
+	ei.len  = mtd->erasesize * blocks;
+
+	err = mtd->erase(mtd, &ei);
+	if (err) {
+		printk(PRINT_PREF "error %d while erasing EB %d, blocks %d\n",
+		       err, ebnum, blocks);
+		return err;
+	}
+
+	if (ei.state == MTD_ERASE_FAILED) {
+		printk(PRINT_PREF "some erase error occurred at EB %d,"
+		       "blocks %d\n", ebnum, blocks);
+		return -EIO;
+	}
+
+	return 0;
+}
+
 static int erase_whole_device(void)
 {
 	int err;
@@ -282,13 +314,16 @@ static inline void stop_timing(void)
 
 static long calc_speed(void)
 {
-	long ms, k, speed;
+	uint64_t k;
+	long ms;
 
 	ms = (finish.tv_sec - start.tv_sec) * 1000 +
 	     (finish.tv_usec - start.tv_usec) / 1000;
-	k = goodebcnt * mtd->erasesize / 1024;
-	speed = (k * 1000) / ms;
-	return speed;
+	if (ms == 0)
+		return 0;
+	k = goodebcnt * (mtd->erasesize / 1024) * 1000;
+	do_div(k, ms);
+	return k;
 }
 
 static int scan_for_bad_eraseblocks(void)
@@ -320,13 +355,16 @@ out:
 
 static int __init mtd_speedtest_init(void)
 {
-	int err, i;
+	int err, i, blocks, j, k;
 	long speed;
 	uint64_t tmp;
 
 	printk(KERN_INFO "\n");
 	printk(KERN_INFO "=================================================\n");
-	printk(PRINT_PREF "MTD device: %d\n", dev);
+	if (count)
+		printk(PRINT_PREF "MTD device: %d    count: %d\n", dev, count);
+	else
+		printk(PRINT_PREF "MTD device: %d\n", dev);
 
 	mtd = get_mtd_device(NULL, dev);
 	if (IS_ERR(mtd)) {
@@ -353,6 +391,9 @@ static int __init mtd_speedtest_init(void)
 	       (unsigned long long)mtd->size, mtd->erasesize,
 	       pgsize, ebcnt, pgcnt, mtd->oobsize);
 
+	if (count > 0 && count < ebcnt)
+		ebcnt = count;
+
 	err = -ENOMEM;
 	iobuf = kmalloc(mtd->erasesize, GFP_KERNEL);
 	if (!iobuf) {
@@ -484,6 +525,31 @@ static int __init mtd_speedtest_init(void)
 	speed = calc_speed();
 	printk(PRINT_PREF "erase speed is %ld KiB/s\n", speed);
 
+	/* Multi-block erase all eraseblocks */
+	for (k = 1; k < 7; k++) {
+		blocks = 1 << k;
+		printk(PRINT_PREF "Testing %dx multi-block erase speed\n",
+		       blocks);
+		start_timing();
+		for (i = 0; i < ebcnt; ) {
+			for (j = 0; j < blocks && (i + j) < ebcnt; j++)
+				if (bbt[i + j])
+					break;
+			if (j < 1) {
+				i++;
+				continue;
+			}
+			err = multiblock_erase(i, j);
+			if (err)
+				goto out;
+			cond_resched();
+			i += j;
+		}
+		stop_timing();
+		speed = calc_speed();
+		printk(PRINT_PREF "%dx multi-block erase speed is %ld KiB/s\n",
+		       blocks, speed);
+	}
 	printk(PRINT_PREF "finished\n");
 out:
 	kfree(iobuf);
diff --git a/drivers/mtd/tests/mtd_subpagetest.c b/drivers/mtd/tests/mtd_subpagetest.c
index 11204e8aab5f..334eae53a3db 100644
--- a/drivers/mtd/tests/mtd_subpagetest.c
+++ b/drivers/mtd/tests/mtd_subpagetest.c
@@ -394,6 +394,11 @@ static int __init mtd_subpagetest_init(void)
 	}
 
 	subpgsize = mtd->writesize >> mtd->subpage_sft;
+	tmp = mtd->size;
+	do_div(tmp, mtd->erasesize);
+	ebcnt = tmp;
+	pgcnt = mtd->erasesize / mtd->writesize;
+
 	printk(PRINT_PREF "MTD device size %llu, eraseblock size %u, "
 	       "page size %u, subpage size %u, count of eraseblocks %u, "
 	       "pages per eraseblock %u, OOB size %u\n",
@@ -413,11 +418,6 @@ static int __init mtd_subpagetest_init(void)
 		goto out;
 	}
 
-	tmp = mtd->size;
-	do_div(tmp, mtd->erasesize);
-	ebcnt = tmp;
-	pgcnt = mtd->erasesize / mtd->writesize;
-
 	err = scan_for_bad_eraseblocks();
 	if (err)
 		goto out;
diff --git a/drivers/mtd/ubi/Kconfig b/drivers/mtd/ubi/Kconfig
index 6abeb4f13403..4dcc752a0c0b 100644
--- a/drivers/mtd/ubi/Kconfig
+++ b/drivers/mtd/ubi/Kconfig
@@ -56,7 +56,7 @@ config MTD_UBI_DEBUG
 	bool "UBI debugging"
 	depends on SYSFS
 	select DEBUG_FS
-	select KALLSYMS_ALL if KALLSYMS && DEBUG_KERNEL
+	select KALLSYMS
 	help
 	  This option enables UBI debugging.
 
diff --git a/drivers/mtd/ubi/io.c b/drivers/mtd/ubi/io.c
index eededf94f5a6..e347cc4388ed 100644
--- a/drivers/mtd/ubi/io.c
+++ b/drivers/mtd/ubi/io.c
@@ -344,6 +344,12 @@ static int do_sync_erase(struct ubi_device *ubi, int pnum)
 	wait_queue_head_t wq;
 
 	dbg_io("erase PEB %d", pnum);
+	ubi_assert(pnum >= 0 && pnum < ubi->peb_count);
+
+	if (ubi->ro_mode) {
+		ubi_err("read-only mode");
+		return -EROFS;
+	}
 
 retry:
 	init_waitqueue_head(&wq);
@@ -390,7 +396,7 @@ retry:
 	if (err)
 		return err;
 
-	if (ubi_dbg_is_erase_failure() && !err) {
+	if (ubi_dbg_is_erase_failure()) {
 		dbg_err("cannot erase PEB %d (emulated)", pnum);
 		return -EIO;
 	}
diff --git a/drivers/mtd/ubi/scan.c b/drivers/mtd/ubi/scan.c
index 11eb8ef12485..d2d12ab7def4 100644
--- a/drivers/mtd/ubi/scan.c
+++ b/drivers/mtd/ubi/scan.c
@@ -968,7 +968,7 @@ static int process_eb(struct ubi_device *ubi, struct ubi_scan_info *si,
 			 * contains garbage because of a power cut during erase
 			 * operation. So we just schedule this PEB for erasure.
 			 *
-			 * Besides, in case of NOR flash, we deliberatly
+			 * Besides, in case of NOR flash, we deliberately
 			 * corrupt both headers because NOR flash erasure is
 			 * slow and can start from the end.
 			 */
diff --git a/drivers/mtd/ubi/vmt.c b/drivers/mtd/ubi/vmt.c
index b79e0dea3632..366eb70219a6 100644
--- a/drivers/mtd/ubi/vmt.c
+++ b/drivers/mtd/ubi/vmt.c
@@ -790,11 +790,6 @@ static int paranoid_check_volume(struct ubi_device *ubi, int vol_id)
 		goto fail;
 	}
 
-	if (!vol->name) {
-		ubi_err("NULL volume name");
-		goto fail;
-	}
-
 	n = strnlen(vol->name, vol->name_len + 1);
 	if (n != vol->name_len) {
 		ubi_err("bad name_len %lld", n);
diff --git a/drivers/net/3c501.c b/drivers/net/3c501.c
index 9e1c03eb97ae..5420f6de27df 100644
--- a/drivers/net/3c501.c
+++ b/drivers/net/3c501.c
@@ -399,7 +399,7 @@ static void el_timeout(struct net_device *dev)
  * as we may still be attempting to retrieve the last RX packet buffer.
  *
  * When a transmit times out we dump the card into control mode and just
- * start again. It happens enough that it isnt worth logging.
+ * start again. It happens enough that it isn't worth logging.
  *
  * We avoid holding the spin locks when doing the packet load to the board.
  * The device is very slow, and its DMA mode is even slower. If we held the
@@ -499,7 +499,7 @@ static netdev_tx_t el_start_xmit(struct sk_buff *skb, struct net_device *dev)
  *
  * Handle the ether interface interrupts. The 3c501 needs a lot more
  * hand holding than most cards. In particular we get a transmit interrupt
- * with a collision error because the board firmware isnt capable of rewinding
+ * with a collision error because the board firmware isn't capable of rewinding
  * its own transmit buffer pointers. It can however count to 16 for us.
  *
  * On the receive side the card is also very dumb. It has no buffering to
@@ -732,7 +732,7 @@ static void el_receive(struct net_device *dev)
  * el_reset: Reset a 3c501 card
  * @dev: The 3c501 card about to get zapped
  *
- * Even resetting a 3c501 isnt simple. When you activate reset it loses all
+ * Even resetting a 3c501 isn't simple. When you activate reset it loses all
  * its configuration. You must hold the lock when doing this. The function
  * cannot take the lock itself as it is callable from the irq handler.
  */
diff --git a/drivers/net/3c523.c b/drivers/net/3c523.c
index de579d043169..bc0d1a1c2e28 100644
--- a/drivers/net/3c523.c
+++ b/drivers/net/3c523.c
@@ -44,7 +44,7 @@
    this for the 64K version would require a lot of heinous bank
    switching, which I'm sure not interested in doing.  If you try to
    implement a bank switching version, you'll basically have to remember
-   what bank is enabled and do a switch everytime you access a memory
+   what bank is enabled and do a switch every time you access a memory
    location that's not current.  You'll also have to remap pointers on
    the driver side, because it only knows about 16K of the memory.
    Anyone desperate or masochistic enough to try?
diff --git a/drivers/net/3c527.c b/drivers/net/3c527.c
index 8c094bae8bf3..d9d056d207f3 100644
--- a/drivers/net/3c527.c
+++ b/drivers/net/3c527.c
@@ -51,7 +51,7 @@ DRV_NAME ".c:v" DRV_VERSION " " DRV_RELDATE " Richard Procter <rnp@paradise.net.
  *	circular buffer queues.
  *
  *	The mailboxes can be used for controlling how the card traverses
- *	its buffer rings, but are used only for inital setup in this
+ *	its buffer rings, but are used only for initial setup in this
  *	implementation.  The exec mailbox allows a variety of commands to
  *	be executed. Each command must complete before the next is
  *	executed. Primarily we use the exec mailbox for controlling the
@@ -813,7 +813,7 @@ static void mc32_flush_rx_ring(struct net_device *dev)
  *
  *	This sets up the host transmit data-structures.
  *
- *	First, we obtain from the card it's current postion in the tx
+ *	First, we obtain from the card it's current position in the tx
  *	ring, so that we will know where to begin transmitting
  *	packets.
  *
diff --git a/drivers/net/3c59x.c b/drivers/net/3c59x.c
index 0a92436f0538..8cc22568ebd3 100644
--- a/drivers/net/3c59x.c
+++ b/drivers/net/3c59x.c
@@ -984,7 +984,7 @@ static int __init vortex_eisa_init(void)
 		 * any device have been found when we exit from
 		 * eisa_driver_register (the bus root driver may not be
 		 * initialized yet). So we blindly assume something was
-		 * found, and let the sysfs magic happend...
+		 * found, and let the sysfs magic happened...
 		 */
 		eisa_found = 1;
 	}
diff --git a/drivers/net/a2065.c b/drivers/net/a2065.c
index f142cc21e453..deaa8bc16cf8 100644
--- a/drivers/net/a2065.c
+++ b/drivers/net/a2065.c
@@ -711,14 +711,14 @@ static int __devinit a2065_init_one(struct zorro_dev *z,
 		return -EBUSY;
 	r2 = request_mem_region(mem_start, A2065_RAM_SIZE, "RAM");
 	if (!r2) {
-		release_resource(r1);
+		release_mem_region(base_addr, sizeof(struct lance_regs));
 		return -EBUSY;
 	}
 
 	dev = alloc_etherdev(sizeof(struct lance_private));
 	if (dev == NULL) {
-		release_resource(r1);
-		release_resource(r2);
+		release_mem_region(base_addr, sizeof(struct lance_regs));
+		release_mem_region(mem_start, A2065_RAM_SIZE);
 		return -ENOMEM;
 	}
 
@@ -764,8 +764,8 @@ static int __devinit a2065_init_one(struct zorro_dev *z,
 
 	err = register_netdev(dev);
 	if (err) {
-		release_resource(r1);
-		release_resource(r2);
+		release_mem_region(base_addr, sizeof(struct lance_regs));
+		release_mem_region(mem_start, A2065_RAM_SIZE);
 		free_netdev(dev);
 		return err;
 	}
diff --git a/drivers/net/acenic.c b/drivers/net/acenic.c
index 41d9911202d0..ee648fe5d96f 100644
--- a/drivers/net/acenic.c
+++ b/drivers/net/acenic.c
@@ -1584,7 +1584,7 @@ static void ace_watchdog(struct net_device *data)
 	/*
 	 * We haven't received a stats update event for more than 2.5
 	 * seconds and there is data in the transmit queue, thus we
-	 * asume the card is stuck.
+	 * assume the card is stuck.
 	 */
 	if (*ap->tx_csm != ap->tx_ret_csm) {
 		printk(KERN_WARNING "%s: Transmitter is stuck, %08x\n",
@@ -2564,7 +2564,7 @@ restart:
 
 		/*
 		 * A TX-descriptor producer (an IRQ) might have gotten
-		 * inbetween, making the ring free again. Since xmit is
+		 * between, making the ring free again. Since xmit is
 		 * serialized, this is the only situation we have to
 		 * re-test.
 		 */
diff --git a/drivers/net/amd8111e.c b/drivers/net/amd8111e.c
index 2ca880b4c0db..88495c48a81d 100644
--- a/drivers/net/amd8111e.c
+++ b/drivers/net/amd8111e.c
@@ -1398,7 +1398,7 @@ static void amd8111e_set_multicast_list(struct net_device *dev)
 		mc_filter[1] = mc_filter[0] = 0;
 		lp->options &= ~OPTION_MULTICAST_ENABLE;
 		amd8111e_writeq(*(u64*)mc_filter,lp->mmio + LADRF);
-		/* disable promiscous mode */
+		/* disable promiscuous mode */
 		writel(PROM, lp->mmio + CMD2);
 		return;
 	}
diff --git a/drivers/net/ariadne.c b/drivers/net/ariadne.c
index 7ca0eded2561..b7f45cd756a2 100644
--- a/drivers/net/ariadne.c
+++ b/drivers/net/ariadne.c
@@ -182,14 +182,14 @@ static int __devinit ariadne_init_one(struct zorro_dev *z,
 	return -EBUSY;
     r2 = request_mem_region(mem_start, ARIADNE_RAM_SIZE, "RAM");
     if (!r2) {
-	release_resource(r1);
+	release_mem_region(base_addr, sizeof(struct Am79C960));
 	return -EBUSY;
     }
 
     dev = alloc_etherdev(sizeof(struct ariadne_private));
     if (dev == NULL) {
-	release_resource(r1);
-	release_resource(r2);
+	release_mem_region(base_addr, sizeof(struct Am79C960));
+	release_mem_region(mem_start, ARIADNE_RAM_SIZE);
 	return -ENOMEM;
     }
 
@@ -213,8 +213,8 @@ static int __devinit ariadne_init_one(struct zorro_dev *z,
 
     err = register_netdev(dev);
     if (err) {
-	release_resource(r1);
-	release_resource(r2);
+	release_mem_region(base_addr, sizeof(struct Am79C960));
+	release_mem_region(mem_start, ARIADNE_RAM_SIZE);
 	free_netdev(dev);
 	return err;
     }
diff --git a/drivers/net/at1700.c b/drivers/net/at1700.c
index f4744fc89768..65a78f965dd2 100644
--- a/drivers/net/at1700.c
+++ b/drivers/net/at1700.c
@@ -133,7 +133,7 @@ struct net_local {
 /* Run-time register bank 2 definitions. */
 #define DATAPORT		8		/* Word-wide DMA or programmed-I/O dataport. */
 #define TX_START		10
-#define COL16CNTL		11		/* Controll Reg for 16 collisions */
+#define COL16CNTL		11		/* Control Reg for 16 collisions */
 #define MODE13			13
 #define RX_CTRL			14
 /* Configuration registers only on the '865A/B chips. */
diff --git a/drivers/net/atl1e/atl1e_main.c b/drivers/net/atl1e/atl1e_main.c
index 1ff001a8270c..b0a71e2f28a9 100644
--- a/drivers/net/atl1e/atl1e_main.c
+++ b/drivers/net/atl1e/atl1e_main.c
@@ -2509,7 +2509,7 @@ static struct pci_driver atl1e_driver = {
 	.id_table = atl1e_pci_tbl,
 	.probe    = atl1e_probe,
 	.remove   = __devexit_p(atl1e_remove),
-	/* Power Managment Hooks */
+	/* Power Management Hooks */
 #ifdef CONFIG_PM
 	.suspend  = atl1e_suspend,
 	.resume   = atl1e_resume,
diff --git a/drivers/net/atlx/atl2.c b/drivers/net/atlx/atl2.c
index e637e9f28fd4..e3cbf45dc612 100644
--- a/drivers/net/atlx/atl2.c
+++ b/drivers/net/atlx/atl2.c
@@ -1701,7 +1701,7 @@ static struct pci_driver atl2_driver = {
 	.id_table = atl2_pci_tbl,
 	.probe    = atl2_probe,
 	.remove   = __devexit_p(atl2_remove),
-	/* Power Managment Hooks */
+	/* Power Management Hooks */
 	.suspend  = atl2_suspend,
 #ifdef CONFIG_PM
 	.resume   = atl2_resume,
@@ -1996,13 +1996,15 @@ static int atl2_set_eeprom(struct net_device *netdev,
 	if (!eeprom_buff)
 		return -ENOMEM;
 
-	ptr = (u32 *)eeprom_buff;
+	ptr = eeprom_buff;
 
 	if (eeprom->offset & 3) {
 		/* need read/modify/write of first changed EEPROM word */
 		/* only the second byte of the word is being modified */
-		if (!atl2_read_eeprom(hw, first_dword*4, &(eeprom_buff[0])))
-			return -EIO;
+		if (!atl2_read_eeprom(hw, first_dword*4, &(eeprom_buff[0]))) {
+			ret_val = -EIO;
+			goto out;
+		}
 		ptr++;
 	}
 	if (((eeprom->offset + eeprom->len) & 3)) {
@@ -2011,18 +2013,22 @@ static int atl2_set_eeprom(struct net_device *netdev,
 		 * only the first byte of the word is being modified
 		 */
 		if (!atl2_read_eeprom(hw, last_dword * 4,
-			&(eeprom_buff[last_dword - first_dword])))
-			return -EIO;
+					&(eeprom_buff[last_dword - first_dword]))) {
+			ret_val = -EIO;
+			goto out;
+		}
 	}
 
 	/* Device's eeprom is always little-endian, word addressable */
 	memcpy(ptr, bytes, eeprom->len);
 
 	for (i = 0; i < last_dword - first_dword + 1; i++) {
-		if (!atl2_write_eeprom(hw, ((first_dword+i)*4), eeprom_buff[i]))
-			return -EIO;
+		if (!atl2_write_eeprom(hw, ((first_dword+i)*4), eeprom_buff[i])) {
+			ret_val = -EIO;
+			goto out;
+		}
 	}
-
+ out:
 	kfree(eeprom_buff);
 	return ret_val;
 }
diff --git a/drivers/net/bcm63xx_enet.c b/drivers/net/bcm63xx_enet.c
index e94a966af418..c48104b08861 100644
--- a/drivers/net/bcm63xx_enet.c
+++ b/drivers/net/bcm63xx_enet.c
@@ -597,7 +597,7 @@ static int bcm_enet_set_mac_address(struct net_device *dev, void *p)
 }
 
 /*
- * Change rx mode (promiscous/allmulti) and update multicast list
+ * Change rx mode (promiscuous/allmulti) and update multicast list
  */
 static void bcm_enet_set_multicast_list(struct net_device *dev)
 {
diff --git a/drivers/net/benet/be_cmds.c b/drivers/net/benet/be_cmds.c
index 5a4a87e7c5ea..1e2d825bb94a 100644
--- a/drivers/net/benet/be_cmds.c
+++ b/drivers/net/benet/be_cmds.c
@@ -1331,7 +1331,7 @@ err:
 
 /*
  * Uses MCC for this command as it may be called in BH context
- * (mc == NULL) => multicast promiscous
+ * (mc == NULL) => multicast promiscuous
  */
 int be_cmd_multicast_set(struct be_adapter *adapter, u32 if_id,
 		struct net_device *netdev, struct be_dma_mem *mem)
diff --git a/drivers/net/benet/be_main.c b/drivers/net/benet/be_main.c
index a71163f1e34b..9a54c8b24ff9 100644
--- a/drivers/net/benet/be_main.c
+++ b/drivers/net/benet/be_main.c
@@ -708,7 +708,7 @@ static void be_set_multicast_list(struct net_device *netdev)
 		goto done;
 	}
 
-	/* BE was previously in promiscous mode; disable it */
+	/* BE was previously in promiscuous mode; disable it */
 	if (adapter->promiscuous) {
 		adapter->promiscuous = false;
 		be_cmd_promiscuous_config(adapter, adapter->port_num, 0);
diff --git a/drivers/net/bfin_mac.c b/drivers/net/bfin_mac.c
index 22abfb39d813..68d45ba2d9b9 100644
--- a/drivers/net/bfin_mac.c
+++ b/drivers/net/bfin_mac.c
@@ -1237,8 +1237,17 @@ static int bfin_mac_enable(struct phy_device *phydev)
 
 	if (phydev->interface == PHY_INTERFACE_MODE_RMII) {
 		opmode |= RMII; /* For Now only 100MBit are supported */
-#if (defined(CONFIG_BF537) || defined(CONFIG_BF536)) && CONFIG_BF_REV_0_2
-		opmode |= TE;
+#if defined(CONFIG_BF537) || defined(CONFIG_BF536)
+		if (__SILICON_REVISION__ < 3) {
+			/*
+			 * This isn't publicly documented (fun times!), but in
+			 * silicon <=0.2, the RX and TX pins are clocked together.
+			 * So in order to recv, we must enable the transmit side
+			 * as well.  This will cause a spurious TX interrupt too,
+			 * but we can easily consume that.
+			 */
+			opmode |= TE;
+		}
 #endif
 	}
 
diff --git a/drivers/net/bna/bna_hw.h b/drivers/net/bna/bna_hw.h
index 806b224a4c63..6cb89692f5c1 100644
--- a/drivers/net/bna/bna_hw.h
+++ b/drivers/net/bna/bna_hw.h
@@ -897,7 +897,7 @@ static struct bna_ritseg_pool_cfg name[BFI_RIT_SEG_TOTAL_POOLS] =	\
  * Catapult RSS Table Base Offset Address
  *
  * Exists in RAD memory space.
- * Each entry is 352 bits, but alligned on
+ * Each entry is 352 bits, but aligned on
  * 64 byte (512 bit) boundary. Accessed
  * 4 byte words, the whole entry can be
  * broken into 11 word accesses.
diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c
index d1865cc97313..8e6d618b5305 100644
--- a/drivers/net/bnx2.c
+++ b/drivers/net/bnx2.c
@@ -8317,7 +8317,7 @@ static const struct net_device_ops bnx2_netdev_ops = {
 #endif
 };
 
-static void inline vlan_features_add(struct net_device *dev, u32 flags)
+static inline void vlan_features_add(struct net_device *dev, u32 flags)
 {
 	dev->vlan_features |= flags;
 }
diff --git a/drivers/net/bnx2x/bnx2x.h b/drivers/net/bnx2x/bnx2x.h
index b7ff87b35fbb..e0fca701d2f3 100644
--- a/drivers/net/bnx2x/bnx2x.h
+++ b/drivers/net/bnx2x/bnx2x.h
@@ -1220,7 +1220,7 @@ struct bnx2x {
 	struct bnx2x_dcbx_port_params		dcbx_port_params;
 	int					dcb_version;
 
-	/* DCBX Negotation results */
+	/* DCBX Negotiation results */
 	struct dcbx_features			dcbx_local_feat;
 	u32					dcbx_error;
 	u32					pending_max;
diff --git a/drivers/net/bnx2x/bnx2x_hsi.h b/drivers/net/bnx2x/bnx2x_hsi.h
index be503cc0a50b..dac1bf9cbbfa 100644
--- a/drivers/net/bnx2x/bnx2x_hsi.h
+++ b/drivers/net/bnx2x/bnx2x_hsi.h
@@ -3019,7 +3019,7 @@ struct tstorm_eth_mac_filter_config {
 
 
 /*
- * common flag to indicate existance of TPA.
+ * common flag to indicate existence of TPA.
  */
 struct tstorm_eth_tpa_exist {
 #if defined(__BIG_ENDIAN)
diff --git a/drivers/net/bnx2x/bnx2x_link.c b/drivers/net/bnx2x/bnx2x_link.c
index f2f367d4e74d..974ef2be36a5 100644
--- a/drivers/net/bnx2x/bnx2x_link.c
+++ b/drivers/net/bnx2x/bnx2x_link.c
@@ -2823,7 +2823,7 @@ static u16 bnx2x_wait_reset_complete(struct bnx2x *bp,
 				     struct link_params *params)
 {
 	u16 cnt, ctrl;
-	/* Wait for soft reset to get cleared upto 1 sec */
+	/* Wait for soft reset to get cleared up to 1 sec */
 	for (cnt = 0; cnt < 1000; cnt++) {
 		bnx2x_cl45_read(bp, phy,
 				MDIO_PMA_DEVAD, MDIO_PMA_REG_CTRL, &ctrl);
@@ -4141,7 +4141,7 @@ static u8 bnx2x_8073_config_init(struct bnx2x_phy *phy,
 			val = (1<<5);
 			/*
 			 * Note that 2.5G works only when used with 1G
-			 * advertisment
+			 * advertisement
 			 */
 		} else
 			val = (1<<5);
@@ -4151,7 +4151,7 @@ static u8 bnx2x_8073_config_init(struct bnx2x_phy *phy,
 			PORT_HW_CFG_SPEED_CAPABILITY_D0_10G)
 			val |= (1<<7);
 
-		/* Note that 2.5G works only when used with 1G advertisment */
+		/* Note that 2.5G works only when used with 1G advertisement */
 		if (phy->speed_cap_mask &
 			(PORT_HW_CFG_SPEED_CAPABILITY_D0_1G |
 			 PORT_HW_CFG_SPEED_CAPABILITY_D0_2_5G))
@@ -5232,14 +5232,14 @@ static u8 bnx2x_8706_config_init(struct bnx2x_phy *phy,
 		bnx2x_cl45_write(bp, phy,
 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_LASI_CTRL, 1);
 	} else {
-		/* Force 1Gbps using autoneg with 1G advertisment */
+		/* Force 1Gbps using autoneg with 1G advertisement */
 
 		/* Allow CL37 through CL73 */
 		DP(NETIF_MSG_LINK, "XGXS 8706 AutoNeg\n");
 		bnx2x_cl45_write(bp, phy,
 				 MDIO_AN_DEVAD, MDIO_AN_REG_CL37_CL73, 0x040c);
 
-		/* Enable Full-Duplex advertisment on CL37 */
+		/* Enable Full-Duplex advertisement on CL37 */
 		bnx2x_cl45_write(bp, phy,
 				 MDIO_AN_DEVAD, MDIO_AN_REG_CL37_FC_LP, 0x0020);
 		/* Enable CL37 AN */
@@ -6269,7 +6269,7 @@ static u8 bnx2x_848x3_config_init(struct bnx2x_phy *phy,
 
 	switch (actual_phy_selection) {
 	case PORT_HW_CFG_PHY_SELECTION_HARDWARE_DEFAULT:
-		/* Do nothing. Essentialy this is like the priority copper */
+		/* Do nothing. Essentially this is like the priority copper */
 		break;
 	case PORT_HW_CFG_PHY_SELECTION_FIRST_PHY_PRIORITY:
 		val |= MDIO_CTL_REG_84823_MEDIA_PRIORITY_COPPER;
@@ -7765,7 +7765,7 @@ u8 bnx2x_link_reset(struct link_params *params, struct link_vars *vars,
 	REG_WR(bp, NIG_REG_NIG_EMAC0_EN + port*4, 0);
 
 	msleep(10);
-	/* The PHY reset is controled by GPIO 1
+	/* The PHY reset is controlled by GPIO 1
 	 * Hold it as vars low
 	 */
 	 /* clear link led */
diff --git a/drivers/net/bnx2x/bnx2x_main.c b/drivers/net/bnx2x/bnx2x_main.c
index 32e64cc85d2c..a97a4a1c344f 100644
--- a/drivers/net/bnx2x/bnx2x_main.c
+++ b/drivers/net/bnx2x/bnx2x_main.c
@@ -3702,7 +3702,7 @@ static void bnx2x_eq_int(struct bnx2x *bp)
 	if ((hw_cons & EQ_DESC_MAX_PAGE) == EQ_DESC_MAX_PAGE)
 		hw_cons++;
 
-	/* This function may never run in parralel with itself for a
+	/* This function may never run in parallel with itself for a
 	 * specific bp, thus there is no need in "paired" read memory
 	 * barrier here.
 	 */
@@ -5089,7 +5089,7 @@ static int bnx2x_init_hw_common(struct bnx2x *bp, u32 load_code)
 		/* Step 1: set zeroes to all ilt page entries with valid bit on
 		 * Step 2: set the timers first/last ilt entry to point
 		 * to the entire range to prevent ILT range error for 3rd/4th
-		 * vnic	(this code assumes existance of the vnic)
+		 * vnic	(this code assumes existence of the vnic)
 		 *
 		 * both steps performed by call to bnx2x_ilt_client_init_op()
 		 * with dummy TM client
@@ -8685,7 +8685,7 @@ static int __devinit bnx2x_get_hwinfo(struct bnx2x *bp)
 				E1H_FUNC_MAX * sizeof(struct drv_func_mb);
 		/*
 		 * get mf configuration:
-		 * 1. existance of MF configuration
+		 * 1. existence of MF configuration
 		 * 2. MAC address must be legal (check only upper bytes)
 		 *    for  Switch-Independent mode;
 		 *    OVLAN must be legal for Switch-Dependent mode
@@ -8727,7 +8727,7 @@ static int __devinit bnx2x_get_hwinfo(struct bnx2x *bp)
 			default:
 				/* Unknown configuration: reset mf_config */
 				bp->mf_config[vn] = 0;
-				DP(NETIF_MSG_PROBE, "Unkown MF mode 0x%x\n",
+				DP(NETIF_MSG_PROBE, "Unknown MF mode 0x%x\n",
 				   val);
 			}
 		}
@@ -9777,7 +9777,7 @@ static int __devinit bnx2x_init_one(struct pci_dev *pdev,
 
 #endif
 
-	/* Configure interupt mode: try to enable MSI-X/MSI if
+	/* Configure interrupt mode: try to enable MSI-X/MSI if
 	 * needed, set bp->num_queues appropriately.
 	 */
 	bnx2x_set_int_mode(bp);
diff --git a/drivers/net/bnx2x/bnx2x_reg.h b/drivers/net/bnx2x/bnx2x_reg.h
index 1c89f19a4425..1509a2318af9 100644
--- a/drivers/net/bnx2x/bnx2x_reg.h
+++ b/drivers/net/bnx2x/bnx2x_reg.h
@@ -175,9 +175,9 @@
    the initial credit value; read returns the current value of the credit
    counter. Must be initialized to 1 at start-up. */
 #define CCM_REG_CFC_INIT_CRD					 0xd0204
-/* [RW 2] Auxillary counter flag Q number 1. */
+/* [RW 2] Auxiliary counter flag Q number 1. */
 #define CCM_REG_CNT_AUX1_Q					 0xd00c8
-/* [RW 2] Auxillary counter flag Q number 2. */
+/* [RW 2] Auxiliary counter flag Q number 2. */
 #define CCM_REG_CNT_AUX2_Q					 0xd00cc
 /* [RW 28] The CM header value for QM request (primary). */
 #define CCM_REG_CQM_CCM_HDR_P					 0xd008c
@@ -457,13 +457,13 @@
 #define CSDM_REG_AGG_INT_MODE_9 				 0xc21dc
 /* [RW 13] The start address in the internal RAM for the cfc_rsp lcid */
 #define CSDM_REG_CFC_RSP_START_ADDR				 0xc2008
-/* [RW 16] The maximum value of the competion counter #0 */
+/* [RW 16] The maximum value of the completion counter #0 */
 #define CSDM_REG_CMP_COUNTER_MAX0				 0xc201c
-/* [RW 16] The maximum value of the competion counter #1 */
+/* [RW 16] The maximum value of the completion counter #1 */
 #define CSDM_REG_CMP_COUNTER_MAX1				 0xc2020
-/* [RW 16] The maximum value of the competion counter #2 */
+/* [RW 16] The maximum value of the completion counter #2 */
 #define CSDM_REG_CMP_COUNTER_MAX2				 0xc2024
-/* [RW 16] The maximum value of the competion counter #3 */
+/* [RW 16] The maximum value of the completion counter #3 */
 #define CSDM_REG_CMP_COUNTER_MAX3				 0xc2028
 /* [RW 13] The start address in the internal RAM for the completion
    counters. */
@@ -851,7 +851,7 @@
 #define IGU_REG_ATTN_MSG_ADDR_L				 0x130120
 /* [R 4] Debug: [3] - attention write done message is pending (0-no pending;
  * 1-pending). [2:0] = PFID. Pending means attention message was sent; but
- * write done didnt receive. */
+ * write done didn't receive. */
 #define IGU_REG_ATTN_WRITE_DONE_PENDING			 0x130030
 #define IGU_REG_BLOCK_CONFIGURATION				 0x130000
 #define IGU_REG_COMMAND_REG_32LSB_DATA				 0x130124
@@ -862,7 +862,7 @@
 #define IGU_REG_CSTORM_TYPE_0_SB_CLEANUP			 0x130200
 /* [R 5] Debug: ctrl_fsm */
 #define IGU_REG_CTRL_FSM					 0x130064
-/* [R 1] data availble for error memory. If this bit is clear do not red
+/* [R 1] data available for error memory. If this bit is clear do not red
  * from error_handling_memory. */
 #define IGU_REG_ERROR_HANDLING_DATA_VALID			 0x130130
 /* [RW 11] Parity mask register #0 read/write */
@@ -3015,7 +3015,7 @@
    block. Should be used for close the gates. */
 #define PXP_REG_HST_DISCARD_DOORBELLS				 0x1030a4
 /* [R 1] debug only: '1' means this PSWHST is discarding doorbells. This bit
-   should update accoring to 'hst_discard_doorbells' register when the state
+   should update according to 'hst_discard_doorbells' register when the state
    machine is idle */
 #define PXP_REG_HST_DISCARD_DOORBELLS_STATUS			 0x1030a0
 /* [RW 1] When 1; new internal writes arriving to the block are discarded.
@@ -3023,7 +3023,7 @@
 #define PXP_REG_HST_DISCARD_INTERNAL_WRITES			 0x1030a8
 /* [R 6] debug only: A bit mask for all PSWHST internal write clients. '1'
    means this PSWHST is discarding inputs from this client. Each bit should
-   update accoring to 'hst_discard_internal_writes' register when the state
+   update according to 'hst_discard_internal_writes' register when the state
    machine is idle. */
 #define PXP_REG_HST_DISCARD_INTERNAL_WRITES_STATUS		 0x10309c
 /* [WB 160] Used for initialization of the inbound interrupts memory */
@@ -3822,13 +3822,13 @@
 #define TSDM_REG_AGG_INT_T_1					 0x420bc
 /* [RW 13] The start address in the internal RAM for the cfc_rsp lcid */
 #define TSDM_REG_CFC_RSP_START_ADDR				 0x42008
-/* [RW 16] The maximum value of the competion counter #0 */
+/* [RW 16] The maximum value of the completion counter #0 */
 #define TSDM_REG_CMP_COUNTER_MAX0				 0x4201c
-/* [RW 16] The maximum value of the competion counter #1 */
+/* [RW 16] The maximum value of the completion counter #1 */
 #define TSDM_REG_CMP_COUNTER_MAX1				 0x42020
-/* [RW 16] The maximum value of the competion counter #2 */
+/* [RW 16] The maximum value of the completion counter #2 */
 #define TSDM_REG_CMP_COUNTER_MAX2				 0x42024
-/* [RW 16] The maximum value of the competion counter #3 */
+/* [RW 16] The maximum value of the completion counter #3 */
 #define TSDM_REG_CMP_COUNTER_MAX3				 0x42028
 /* [RW 13] The start address in the internal RAM for the completion
    counters. */
@@ -4284,13 +4284,13 @@
 #define USDM_REG_AGG_INT_T_6					 0xc40d0
 /* [RW 13] The start address in the internal RAM for the cfc_rsp lcid */
 #define USDM_REG_CFC_RSP_START_ADDR				 0xc4008
-/* [RW 16] The maximum value of the competion counter #0 */
+/* [RW 16] The maximum value of the completion counter #0 */
 #define USDM_REG_CMP_COUNTER_MAX0				 0xc401c
-/* [RW 16] The maximum value of the competion counter #1 */
+/* [RW 16] The maximum value of the completion counter #1 */
 #define USDM_REG_CMP_COUNTER_MAX1				 0xc4020
-/* [RW 16] The maximum value of the competion counter #2 */
+/* [RW 16] The maximum value of the completion counter #2 */
 #define USDM_REG_CMP_COUNTER_MAX2				 0xc4024
-/* [RW 16] The maximum value of the competion counter #3 */
+/* [RW 16] The maximum value of the completion counter #3 */
 #define USDM_REG_CMP_COUNTER_MAX3				 0xc4028
 /* [RW 13] The start address in the internal RAM for the completion
    counters. */
@@ -4798,13 +4798,13 @@
 #define XSDM_REG_AGG_INT_MODE_1 				 0x1661bc
 /* [RW 13] The start address in the internal RAM for the cfc_rsp lcid */
 #define XSDM_REG_CFC_RSP_START_ADDR				 0x166008
-/* [RW 16] The maximum value of the competion counter #0 */
+/* [RW 16] The maximum value of the completion counter #0 */
 #define XSDM_REG_CMP_COUNTER_MAX0				 0x16601c
-/* [RW 16] The maximum value of the competion counter #1 */
+/* [RW 16] The maximum value of the completion counter #1 */
 #define XSDM_REG_CMP_COUNTER_MAX1				 0x166020
-/* [RW 16] The maximum value of the competion counter #2 */
+/* [RW 16] The maximum value of the completion counter #2 */
 #define XSDM_REG_CMP_COUNTER_MAX2				 0x166024
-/* [RW 16] The maximum value of the competion counter #3 */
+/* [RW 16] The maximum value of the completion counter #3 */
 #define XSDM_REG_CMP_COUNTER_MAX3				 0x166028
 /* [RW 13] The start address in the internal RAM for the completion
    counters. */
diff --git a/drivers/net/bonding/bond_alb.h b/drivers/net/bonding/bond_alb.h
index 118c28aa471e..86861f08b24d 100644
--- a/drivers/net/bonding/bond_alb.h
+++ b/drivers/net/bonding/bond_alb.h
@@ -74,9 +74,9 @@ struct tlb_client_info {
 				 * packets to a Client that the Hash function
 				 * gave this entry index.
 				 */
-	u32 tx_bytes;		/* Each Client acumulates the BytesTx that
+	u32 tx_bytes;		/* Each Client accumulates the BytesTx that
 				 * were tranmitted to it, and after each
-				 * CallBack the LoadHistory is devided
+				 * CallBack the LoadHistory is divided
 				 * by the balance interval
 				 */
 	u32 load_history;	/* This field contains the amount of Bytes
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 338bea147c64..16d6fe954695 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -1482,21 +1482,16 @@ static rx_handler_result_t bond_handle_frame(struct sk_buff **pskb)
 {
 	struct sk_buff *skb = *pskb;
 	struct slave *slave;
-	struct net_device *bond_dev;
 	struct bonding *bond;
 
-	slave = bond_slave_get_rcu(skb->dev);
-	bond_dev = ACCESS_ONCE(slave->dev->master);
-	if (unlikely(!bond_dev))
-		return RX_HANDLER_PASS;
-
 	skb = skb_share_check(skb, GFP_ATOMIC);
 	if (unlikely(!skb))
 		return RX_HANDLER_CONSUMED;
 
 	*pskb = skb;
 
-	bond = netdev_priv(bond_dev);
+	slave = bond_slave_get_rcu(skb->dev);
+	bond = slave->bond;
 
 	if (bond->params.arp_interval)
 		slave->dev->last_rx = jiffies;
@@ -1505,10 +1500,10 @@ static rx_handler_result_t bond_handle_frame(struct sk_buff **pskb)
 		return RX_HANDLER_EXACT;
 	}
 
-	skb->dev = bond_dev;
+	skb->dev = bond->dev;
 
 	if (bond->params.mode == BOND_MODE_ALB &&
-	    bond_dev->priv_flags & IFF_BRIDGE_PORT &&
+	    bond->dev->priv_flags & IFF_BRIDGE_PORT &&
 	    skb->pkt_type == PACKET_HOST) {
 
 		if (unlikely(skb_cow_head(skb,
@@ -1516,7 +1511,7 @@ static rx_handler_result_t bond_handle_frame(struct sk_buff **pskb)
 			kfree_skb(skb);
 			return RX_HANDLER_CONSUMED;
 		}
-		memcpy(eth_hdr(skb)->h_dest, bond_dev->dev_addr, ETH_ALEN);
+		memcpy(eth_hdr(skb)->h_dest, bond->dev->dev_addr, ETH_ALEN);
 	}
 
 	return RX_HANDLER_ANOTHER;
@@ -1698,20 +1693,15 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
 		pr_debug("Error %d calling netdev_set_bond_master\n", res);
 		goto err_restore_mac;
 	}
-	res = netdev_rx_handler_register(slave_dev, bond_handle_frame,
-					 new_slave);
-	if (res) {
-		pr_debug("Error %d calling netdev_rx_handler_register\n", res);
-		goto err_unset_master;
-	}
 
 	/* open the slave since the application closed it */
 	res = dev_open(slave_dev);
 	if (res) {
 		pr_debug("Opening slave %s failed\n", slave_dev->name);
-		goto err_unreg_rxhandler;
+		goto err_unset_master;
 	}
 
+	new_slave->bond = bond;
 	new_slave->dev = slave_dev;
 	slave_dev->priv_flags |= IFF_BONDING;
 
@@ -1907,6 +1897,13 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
 	if (res)
 		goto err_close;
 
+	res = netdev_rx_handler_register(slave_dev, bond_handle_frame,
+					 new_slave);
+	if (res) {
+		pr_debug("Error %d calling netdev_rx_handler_register\n", res);
+		goto err_dest_symlinks;
+	}
+
 	pr_info("%s: enslaving %s as a%s interface with a%s link.\n",
 		bond_dev->name, slave_dev->name,
 		bond_is_active_slave(new_slave) ? "n active" : " backup",
@@ -1916,13 +1913,12 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
 	return 0;
 
 /* Undo stages on error */
+err_dest_symlinks:
+	bond_destroy_slave_symlinks(bond_dev, slave_dev);
+
 err_close:
 	dev_close(slave_dev);
 
-err_unreg_rxhandler:
-	netdev_rx_handler_unregister(slave_dev);
-	synchronize_net();
-
 err_unset_master:
 	netdev_set_bond_master(slave_dev, NULL);
 
@@ -1988,6 +1984,14 @@ int bond_release(struct net_device *bond_dev, struct net_device *slave_dev)
 		return -EINVAL;
 	}
 
+	/* unregister rx_handler early so bond_handle_frame wouldn't be called
+	 * for this slave anymore.
+	 */
+	netdev_rx_handler_unregister(slave_dev);
+	write_unlock_bh(&bond->lock);
+	synchronize_net();
+	write_lock_bh(&bond->lock);
+
 	if (!bond->params.fail_over_mac) {
 		if (!compare_ether_addr(bond_dev->dev_addr, slave->perm_hwaddr) &&
 		    bond->slave_cnt > 1)
@@ -2104,8 +2108,6 @@ int bond_release(struct net_device *bond_dev, struct net_device *slave_dev)
 		netif_addr_unlock_bh(bond_dev);
 	}
 
-	netdev_rx_handler_unregister(slave_dev);
-	synchronize_net();
 	netdev_set_bond_master(slave_dev, NULL);
 
 	slave_disable_netpoll(slave);
@@ -2186,6 +2188,12 @@ static int bond_release_all(struct net_device *bond_dev)
 		 */
 		write_unlock_bh(&bond->lock);
 
+		/* unregister rx_handler early so bond_handle_frame wouldn't
+		 * be called for this slave anymore.
+		 */
+		netdev_rx_handler_unregister(slave_dev);
+		synchronize_net();
+
 		if (bond_is_lb(bond)) {
 			/* must be called only after the slave
 			 * has been detached from the list
@@ -2217,8 +2225,6 @@ static int bond_release_all(struct net_device *bond_dev)
 			netif_addr_unlock_bh(bond_dev);
 		}
 
-		netdev_rx_handler_unregister(slave_dev);
-		synchronize_net();
 		netdev_set_bond_master(slave_dev, NULL);
 
 		slave_disable_netpoll(slave);
diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h
index 6b26962fd0ec..90736cb4d975 100644
--- a/drivers/net/bonding/bonding.h
+++ b/drivers/net/bonding/bonding.h
@@ -187,6 +187,7 @@ struct slave {
 	struct net_device *dev; /* first - useful for panic debug */
 	struct slave *next;
 	struct slave *prev;
+	struct bonding *bond; /* our master */
 	int    delay;
 	unsigned long jiffies;
 	unsigned long last_arp_rx;
diff --git a/drivers/net/caif/caif_shmcore.c b/drivers/net/caif/caif_shmcore.c
index 80511167f35b..731aa1193770 100644
--- a/drivers/net/caif/caif_shmcore.c
+++ b/drivers/net/caif/caif_shmcore.c
@@ -591,7 +591,7 @@ int caif_shmcore_probe(struct shmdev_layer *pshm_dev)
 			(NR_TX_BUF * TX_BUF_SZ + NR_RX_BUF * RX_BUF_SZ)) {
 
 		pr_warn("ERROR, Amount of available"
-				" Phys. SHM cannot accomodate current SHM "
+				" Phys. SHM cannot accommodate current SHM "
 				"driver configuration, Bailing out ...\n");
 		free_netdev(pshm_dev->pshm_netdev);
 		return -ENOMEM;
diff --git a/drivers/net/caif/caif_spi.c b/drivers/net/caif/caif_spi.c
index 20da1996d354..57e639373815 100644
--- a/drivers/net/caif/caif_spi.c
+++ b/drivers/net/caif/caif_spi.c
@@ -397,7 +397,7 @@ int cfspi_xmitlen(struct cfspi *cfspi)
 	int pkts = 0;
 
 	/*
-	 * Decommit previously commited frames.
+	 * Decommit previously committed frames.
 	 * skb_queue_splice_tail(&cfspi->chead,&cfspi->qhead)
 	 */
 	while (skb_peek(&cfspi->chead)) {
diff --git a/drivers/net/caif/caif_spi_slave.c b/drivers/net/caif/caif_spi_slave.c
index 1b9943a4edab..b009e03cda9e 100644
--- a/drivers/net/caif/caif_spi_slave.c
+++ b/drivers/net/caif/caif_spi_slave.c
@@ -98,7 +98,7 @@ void cfspi_xfer(struct work_struct *work)
 
 			cfspi_dbg_state(cfspi, CFSPI_STATE_FETCH_PKT);
 
-			/* Copy commited SPI frames after the SPI indication. */
+			/* Copy committed SPI frames after the SPI indication. */
 			ptr = (u8 *) cfspi->xfer.va_tx;
 			ptr += SPI_IND_SZ;
 			len = cfspi_xmitfrm(cfspi, ptr, cfspi->tx_cpck_len);
@@ -158,7 +158,7 @@ void cfspi_xfer(struct work_struct *work)
 
 		cfspi_dbg_state(cfspi, CFSPI_STATE_SIG_ACTIVE);
 
-		/* Signal that we are ready to recieve data. */
+		/* Signal that we are ready to receive data. */
 		cfspi->dev->sig_xfer(true, cfspi->dev);
 
 		cfspi_dbg_state(cfspi, CFSPI_STATE_WAIT_XFER_DONE);
diff --git a/drivers/net/can/at91_can.c b/drivers/net/can/at91_can.c
index 57d2ffbbb433..74efb5a2ad41 100644
--- a/drivers/net/can/at91_can.c
+++ b/drivers/net/can/at91_can.c
@@ -416,7 +416,7 @@ static netdev_tx_t at91_start_xmit(struct sk_buff *skb, struct net_device *dev)
 
 	stats->tx_bytes += cf->can_dlc;
 
-	/* _NOTE_: substract AT91_MB_TX_FIRST offset from mb! */
+	/* _NOTE_: subtract AT91_MB_TX_FIRST offset from mb! */
 	can_put_echo_skb(skb, dev, mb - AT91_MB_TX_FIRST);
 
 	/*
@@ -782,7 +782,7 @@ static void at91_irq_tx(struct net_device *dev, u32 reg_sr)
 		reg_msr = at91_read(priv, AT91_MSR(mb));
 		if (likely(reg_msr & AT91_MSR_MRDY &&
 			   ~reg_msr & AT91_MSR_MABT)) {
-			/* _NOTE_: substract AT91_MB_TX_FIRST offset from mb! */
+			/* _NOTE_: subtract AT91_MB_TX_FIRST offset from mb! */
 			can_get_echo_skb(dev, mb - AT91_MB_TX_FIRST);
 			dev->stats.tx_packets++;
 		}
diff --git a/drivers/net/can/c_can/c_can.c b/drivers/net/can/c_can/c_can.c
index 110eda01843c..7e5cc0bd913d 100644
--- a/drivers/net/can/c_can/c_can.c
+++ b/drivers/net/can/c_can/c_can.c
@@ -588,14 +588,9 @@ static void c_can_chip_config(struct net_device *dev)
 {
 	struct c_can_priv *priv = netdev_priv(dev);
 
-	if (priv->can.ctrlmode & CAN_CTRLMODE_ONE_SHOT)
-		/* disable automatic retransmission */
-		priv->write_reg(priv, &priv->regs->control,
-				CONTROL_DISABLE_AR);
-	else
-		/* enable automatic retransmission */
-		priv->write_reg(priv, &priv->regs->control,
-				CONTROL_ENABLE_AR);
+	/* enable automatic retransmission */
+	priv->write_reg(priv, &priv->regs->control,
+			CONTROL_ENABLE_AR);
 
 	if (priv->can.ctrlmode & (CAN_CTRLMODE_LISTENONLY &
 					CAN_CTRLMODE_LOOPBACK)) {
@@ -704,7 +699,6 @@ static void c_can_do_tx(struct net_device *dev)
 
 	for (/* nix */; (priv->tx_next - priv->tx_echo) > 0; priv->tx_echo++) {
 		msg_obj_no = get_tx_echo_msg_obj(priv);
-		c_can_inval_msg_object(dev, 0, msg_obj_no);
 		val = c_can_read_reg32(priv, &priv->regs->txrqst1);
 		if (!(val & (1 << msg_obj_no))) {
 			can_get_echo_skb(dev,
@@ -713,6 +707,7 @@ static void c_can_do_tx(struct net_device *dev)
 					&priv->regs->ifregs[0].msg_cntrl)
 					& IF_MCONT_DLC_MASK;
 			stats->tx_packets++;
+			c_can_inval_msg_object(dev, 0, msg_obj_no);
 		}
 	}
 
@@ -818,7 +813,7 @@ static int c_can_handle_state_change(struct net_device *dev,
 	struct sk_buff *skb;
 	struct can_berr_counter bec;
 
-	/* propogate the error condition to the CAN stack */
+	/* propagate the error condition to the CAN stack */
 	skb = alloc_can_err_skb(dev, &cf);
 	if (unlikely(!skb))
 		return 0;
@@ -892,7 +887,7 @@ static int c_can_handle_bus_err(struct net_device *dev,
 	if (lec_type == LEC_UNUSED || lec_type == LEC_NO_ERROR)
 		return 0;
 
-	/* propogate the error condition to the CAN stack */
+	/* propagate the error condition to the CAN stack */
 	skb = alloc_can_err_skb(dev, &cf);
 	if (unlikely(!skb))
 		return 0;
@@ -1112,8 +1107,7 @@ struct net_device *alloc_c_can_dev(void)
 	priv->can.bittiming_const = &c_can_bittiming_const;
 	priv->can.do_set_mode = c_can_set_mode;
 	priv->can.do_get_berr_counter = c_can_get_berr_counter;
-	priv->can.ctrlmode_supported = CAN_CTRLMODE_ONE_SHOT |
-					CAN_CTRLMODE_LOOPBACK |
+	priv->can.ctrlmode_supported = CAN_CTRLMODE_LOOPBACK |
 					CAN_CTRLMODE_LISTENONLY |
 					CAN_CTRLMODE_BERR_REPORTING;
 
diff --git a/drivers/net/can/c_can/c_can_platform.c b/drivers/net/can/c_can/c_can_platform.c
index e629b961ae2d..cc90824f2c9c 100644
--- a/drivers/net/can/c_can/c_can_platform.c
+++ b/drivers/net/can/c_can/c_can_platform.c
@@ -73,7 +73,8 @@ static int __devinit c_can_plat_probe(struct platform_device *pdev)
 	void __iomem *addr;
 	struct net_device *dev;
 	struct c_can_priv *priv;
-	struct resource *mem, *irq;
+	struct resource *mem;
+	int irq;
 #ifdef CONFIG_HAVE_CLK
 	struct clk *clk;
 
@@ -88,8 +89,8 @@ static int __devinit c_can_plat_probe(struct platform_device *pdev)
 
 	/* get the platform data */
 	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
-	if (!mem || (irq <= 0)) {
+	irq = platform_get_irq(pdev, 0);
+	if (!mem || irq <= 0) {
 		ret = -ENODEV;
 		goto exit_free_clk;
 	}
@@ -117,7 +118,7 @@ static int __devinit c_can_plat_probe(struct platform_device *pdev)
 
 	priv = netdev_priv(dev);
 
-	dev->irq = irq->start;
+	dev->irq = irq;
 	priv->regs = addr;
 #ifdef CONFIG_HAVE_CLK
 	priv->can.clock.freq = clk_get_rate(clk);
diff --git a/drivers/net/can/janz-ican3.c b/drivers/net/can/janz-ican3.c
index 102b16c6cc97..587fba48cdd9 100644
--- a/drivers/net/can/janz-ican3.c
+++ b/drivers/net/can/janz-ican3.c
@@ -274,7 +274,7 @@ static inline void ican3_set_page(struct ican3_dev *mod, unsigned int page)
  */
 
 /*
- * Recieve a message from the ICAN3 "old-style" firmware interface
+ * Receive a message from the ICAN3 "old-style" firmware interface
  *
  * LOCKING: must hold mod->lock
  *
@@ -1050,7 +1050,7 @@ static void ican3_handle_inquiry(struct ican3_dev *mod, struct ican3_msg *msg)
 		complete(&mod->termination_comp);
 		break;
 	default:
-		dev_err(mod->dev, "recieved an unknown inquiry response\n");
+		dev_err(mod->dev, "received an unknown inquiry response\n");
 		break;
 	}
 }
@@ -1058,7 +1058,7 @@ static void ican3_handle_inquiry(struct ican3_dev *mod, struct ican3_msg *msg)
 static void ican3_handle_unknown_message(struct ican3_dev *mod,
 					struct ican3_msg *msg)
 {
-	dev_warn(mod->dev, "recieved unknown message: spec 0x%.2x length %d\n",
+	dev_warn(mod->dev, "received unknown message: spec 0x%.2x length %d\n",
 			   msg->spec, le16_to_cpu(msg->len));
 }
 
@@ -1113,7 +1113,7 @@ static bool ican3_txok(struct ican3_dev *mod)
 }
 
 /*
- * Recieve one CAN frame from the hardware
+ * Receive one CAN frame from the hardware
  *
  * CONTEXT: must be called from user context
  */
diff --git a/drivers/net/can/mscan/mscan.c b/drivers/net/can/mscan/mscan.c
index 74cd880c7e06..92feac68b66e 100644
--- a/drivers/net/can/mscan/mscan.c
+++ b/drivers/net/can/mscan/mscan.c
@@ -246,7 +246,7 @@ static netdev_tx_t mscan_start_xmit(struct sk_buff *skb, struct net_device *dev)
 		out_be16(&regs->tx.idr3_2, can_id);
 
 		can_id >>= 16;
-		/* EFF_FLAGS are inbetween the IDs :( */
+		/* EFF_FLAGS are between the IDs :( */
 		can_id = (can_id & 0x7) | ((can_id << 2) & 0xffe0)
 			 | MSCAN_EFF_FLAGS;
 	} else {
diff --git a/drivers/net/can/sja1000/sja1000.c b/drivers/net/can/sja1000/sja1000.c
index 0a8de01d52f7..a358ea9445a2 100644
--- a/drivers/net/can/sja1000/sja1000.c
+++ b/drivers/net/can/sja1000/sja1000.c
@@ -425,7 +425,7 @@ static int sja1000_err(struct net_device *dev, uint8_t isrc, uint8_t status)
 			cf->data[3] = ecc & ECC_SEG;
 			break;
 		}
-		/* Error occured during transmission? */
+		/* Error occurred during transmission? */
 		if ((ecc & ECC_DIR) == 0)
 			cf->data[2] |= CAN_ERR_PROT_TX;
 	}
diff --git a/drivers/net/can/softing/softing.h b/drivers/net/can/softing/softing.h
index 7ec9f4db3d52..afd7d85b6915 100644
--- a/drivers/net/can/softing/softing.h
+++ b/drivers/net/can/softing/softing.h
@@ -22,7 +22,7 @@ struct softing_priv {
 	struct softing *card;
 	struct {
 		int pending;
-		/* variables wich hold the circular buffer */
+		/* variables which hold the circular buffer */
 		int echo_put;
 		int echo_get;
 	} tx;
diff --git a/drivers/net/can/softing/softing_main.c b/drivers/net/can/softing/softing_main.c
index aeea9f9ff6e8..7a70709d5608 100644
--- a/drivers/net/can/softing/softing_main.c
+++ b/drivers/net/can/softing/softing_main.c
@@ -218,7 +218,7 @@ static int softing_handle_1(struct softing *card)
 	ptr = buf;
 	cmd = *ptr++;
 	if (cmd == 0xff)
-		/* not quite usefull, probably the card has got out */
+		/* not quite useful, probably the card has got out */
 		return 0;
 	netdev = card->net[0];
 	if (cmd & CMD_BUS2)
diff --git a/drivers/net/can/ti_hecc.c b/drivers/net/can/ti_hecc.c
index 4d07f1ee7168..f7bbde9eb2cb 100644
--- a/drivers/net/can/ti_hecc.c
+++ b/drivers/net/can/ti_hecc.c
@@ -663,7 +663,7 @@ static int ti_hecc_error(struct net_device *ndev, int int_status,
 	struct can_frame *cf;
 	struct sk_buff *skb;
 
-	/* propogate the error condition to the can stack */
+	/* propagate the error condition to the can stack */
 	skb = alloc_can_err_skb(ndev, &cf);
 	if (!skb) {
 		if (printk_ratelimit())
diff --git a/drivers/net/can/usb/ems_usb.c b/drivers/net/can/usb/ems_usb.c
index e75f1a876972..a72c7bfb4090 100644
--- a/drivers/net/can/usb/ems_usb.c
+++ b/drivers/net/can/usb/ems_usb.c
@@ -386,7 +386,7 @@ static void ems_usb_rx_err(struct ems_usb *dev, struct ems_cpc_msg *msg)
 			break;
 		}
 
-		/* Error occured during transmission? */
+		/* Error occurred during transmission? */
 		if ((ecc & SJA1000_ECC_DIR) == 0)
 			cf->data[2] |= CAN_ERR_PROT_TX;
 
diff --git a/drivers/net/can/usb/esd_usb2.c b/drivers/net/can/usb/esd_usb2.c
index dc53c831ea95..eb8b0e600282 100644
--- a/drivers/net/can/usb/esd_usb2.c
+++ b/drivers/net/can/usb/esd_usb2.c
@@ -284,7 +284,7 @@ static void esd_usb2_rx_event(struct esd_usb2_net_priv *priv,
 				break;
 			}
 
-			/* Error occured during transmission? */
+			/* Error occurred during transmission? */
 			if (!(ecc & SJA1000_ECC_DIR))
 				cf->data[2] |= CAN_ERR_PROT_TX;
 
diff --git a/drivers/net/cassini.c b/drivers/net/cassini.c
index 3437613f0454..143a28c666af 100644
--- a/drivers/net/cassini.c
+++ b/drivers/net/cassini.c
@@ -51,7 +51,7 @@
  * TX has 4 queues. currently these queues are used in a round-robin
  * fashion for load balancing. They can also be used for QoS. for that
  * to work, however, QoS information needs to be exposed down to the driver
- * level so that subqueues get targetted to particular transmit rings.
+ * level so that subqueues get targeted to particular transmit rings.
  * alternatively, the queues can be configured via use of the all-purpose
  * ioctl.
  *
@@ -5165,7 +5165,7 @@ err_out_free_res:
 	pci_release_regions(pdev);
 
 err_write_cacheline:
-	/* Try to restore it in case the error occured after we
+	/* Try to restore it in case the error occurred after we
 	 * set it.
 	 */
 	pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE, orig_cacheline_size);
diff --git a/drivers/net/cassini.h b/drivers/net/cassini.h
index faf4746a0f3e..b361424d5f57 100644
--- a/drivers/net/cassini.h
+++ b/drivers/net/cassini.h
@@ -772,7 +772,7 @@
 #define    RX_DEBUG_INTR_WRITE_PTR_MASK    0xC0000000 /* interrupt write pointer
 							 of the interrupt queue */
 
-/* flow control frames are emmitted using two PAUSE thresholds:
+/* flow control frames are emitted using two PAUSE thresholds:
  * XOFF PAUSE uses pause time value pre-programmed in the Send PAUSE MAC reg
  * XON PAUSE uses a pause time of 0. granularity of threshold is 64bytes.
  * PAUSE thresholds defined in terms of FIFO occupancy and may be translated
diff --git a/drivers/net/chelsio/mv88e1xxx.c b/drivers/net/chelsio/mv88e1xxx.c
index 809047a99e96..71018a4fdf15 100644
--- a/drivers/net/chelsio/mv88e1xxx.c
+++ b/drivers/net/chelsio/mv88e1xxx.c
@@ -41,7 +41,7 @@ static void mdio_clear_bit(struct cphy *cphy, int reg, u32 bitval)
  *
  * PARAMS: cphy     - Pointer to PHY instance data.
  *
- * RETURN:  0 - Successfull reset.
+ * RETURN:  0 - Successful reset.
  *         -1 - Timeout.
  */
 static int mv88e1xxx_reset(struct cphy *cphy, int wait)
diff --git a/drivers/net/chelsio/pm3393.c b/drivers/net/chelsio/pm3393.c
index 7dbb16d36fff..40c7b93ababc 100644
--- a/drivers/net/chelsio/pm3393.c
+++ b/drivers/net/chelsio/pm3393.c
@@ -293,7 +293,7 @@ static int pm3393_enable_port(struct cmac *cmac, int which)
 	pm3393_enable(cmac, which);
 
 	/*
-	 * XXX This should be done by the PHY and preferrably not at all.
+	 * XXX This should be done by the PHY and preferably not at all.
 	 * The PHY doesn't give us link status indication on its own so have
 	 * the link management code query it instead.
 	 */
diff --git a/drivers/net/chelsio/sge.c b/drivers/net/chelsio/sge.c
index f778b15ad3fd..8754d4473042 100644
--- a/drivers/net/chelsio/sge.c
+++ b/drivers/net/chelsio/sge.c
@@ -1662,7 +1662,7 @@ irqreturn_t t1_interrupt(int irq, void *data)
  * The code figures out how many entries the sk_buff will require in the
  * cmdQ and updates the cmdQ data structure with the state once the enqueue
  * has complete. Then, it doesn't access the global structure anymore, but
- * uses the corresponding fields on the stack. In conjuction with a spinlock
+ * uses the corresponding fields on the stack. In conjunction with a spinlock
  * around that code, we can make the function reentrant without holding the
  * lock when we actually enqueue (which might be expensive, especially on
  * architectures with IO MMUs).
diff --git a/drivers/net/chelsio/vsc7326.c b/drivers/net/chelsio/vsc7326.c
index 106a590f0d9a..b0cb388f5e12 100644
--- a/drivers/net/chelsio/vsc7326.c
+++ b/drivers/net/chelsio/vsc7326.c
@@ -566,7 +566,7 @@ static int mac_disable(struct cmac *mac, int which)
 	for (i = 0; i <= 0x3a; ++i)
 		vsc_write(mac->adapter, CRA(4, port, i), 0);
 
-	/* Clear sofware counters */
+	/* Clear software counters */
 	memset(&mac->stats, 0, sizeof(struct cmac_statistics));
 
 	return 0;
diff --git a/drivers/net/cris/eth_v10.c b/drivers/net/cris/eth_v10.c
index 80c2feeefec5..9d267d3a6892 100644
--- a/drivers/net/cris/eth_v10.c
+++ b/drivers/net/cris/eth_v10.c
@@ -1383,7 +1383,7 @@ e100_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 	spin_lock(&np->lock); /* Preempt protection */
 	switch (cmd) {
 		/* The ioctls below should be considered obsolete but are */
-		/* still present for compatability with old scripts/apps  */
+		/* still present for compatibility with old scripts/apps  */
 		case SET_ETH_SPEED_10:                  /* 10 Mbps */
 			e100_set_speed(dev, 10);
 			break;
diff --git a/drivers/net/cxgb3/cxgb3_main.c b/drivers/net/cxgb3/cxgb3_main.c
index 4d538a4e9d55..910893143295 100644
--- a/drivers/net/cxgb3/cxgb3_main.c
+++ b/drivers/net/cxgb3/cxgb3_main.c
@@ -1983,14 +1983,20 @@ static int set_coalesce(struct net_device *dev, struct ethtool_coalesce *c)
 {
 	struct port_info *pi = netdev_priv(dev);
 	struct adapter *adapter = pi->adapter;
-	struct qset_params *qsp = &adapter->params.sge.qset[0];
-	struct sge_qset *qs = &adapter->sge.qs[0];
+	struct qset_params *qsp;
+	struct sge_qset *qs;
+	int i;
 
 	if (c->rx_coalesce_usecs * 10 > M_NEWTIMER)
 		return -EINVAL;
 
-	qsp->coalesce_usecs = c->rx_coalesce_usecs;
-	t3_update_qset_coalesce(qs, qsp);
+	for (i = 0; i < pi->nqsets; i++) {
+		qsp = &adapter->params.sge.qset[i];
+		qs = &adapter->sge.qs[i];
+		qsp->coalesce_usecs = c->rx_coalesce_usecs;
+		t3_update_qset_coalesce(qs, qsp);
+	}
+
 	return 0;
 }
 
diff --git a/drivers/net/cxgb3/sge.c b/drivers/net/cxgb3/sge.c
index f9f6645b2e61..bfa2d56af1ee 100644
--- a/drivers/net/cxgb3/sge.c
+++ b/drivers/net/cxgb3/sge.c
@@ -199,7 +199,7 @@ static inline void refill_rspq(struct adapter *adapter,
  *	need_skb_unmap - does the platform need unmapping of sk_buffs?
  *
  *	Returns true if the platform needs sk_buff unmapping.  The compiler
- *	optimizes away unecessary code if this returns true.
+ *	optimizes away unnecessary code if this returns true.
  */
 static inline int need_skb_unmap(void)
 {
diff --git a/drivers/net/cxgb3/t3_hw.c b/drivers/net/cxgb3/t3_hw.c
index d55db6b38e7b..c688421da9c7 100644
--- a/drivers/net/cxgb3/t3_hw.c
+++ b/drivers/net/cxgb3/t3_hw.c
@@ -1386,11 +1386,11 @@ struct intr_info {
  *	@reg: the interrupt status register to process
  *	@mask: a mask to apply to the interrupt status
  *	@acts: table of interrupt actions
- *	@stats: statistics counters tracking interrupt occurences
+ *	@stats: statistics counters tracking interrupt occurrences
  *
  *	A table driven interrupt handler that applies a set of masks to an
  *	interrupt status word and performs the corresponding actions if the
- *	interrupts described by the mask have occured.  The actions include
+ *	interrupts described by the mask have occurred.  The actions include
  *	optionally printing a warning or alert message, and optionally
  *	incrementing a stat counter.  The table is terminated by an entry
  *	specifying mask 0.  Returns the number of fatal interrupt conditions.
@@ -2783,7 +2783,7 @@ static void init_mtus(unsigned short mtus[])
 {
 	/*
 	 * See draft-mathis-plpmtud-00.txt for the values.  The min is 88 so
-	 * it can accomodate max size TCP/IP headers when SACK and timestamps
+	 * it can accommodate max size TCP/IP headers when SACK and timestamps
 	 * are enabled and still have at least 8 bytes of payload.
 	 */
 	mtus[0] = 88;
diff --git a/drivers/net/cxgb4/t4_hw.c b/drivers/net/cxgb4/t4_hw.c
index b9fd8a6f2cc4..d1ec111aebd8 100644
--- a/drivers/net/cxgb4/t4_hw.c
+++ b/drivers/net/cxgb4/t4_hw.c
@@ -883,7 +883,7 @@ struct intr_info {
  *
  *	A table driven interrupt handler that applies a set of masks to an
  *	interrupt status word and performs the corresponding actions if the
- *	interrupts described by the mask have occured.  The actions include
+ *	interrupts described by the mask have occurred.  The actions include
  *	optionally emitting a warning or alert message.  The table is terminated
  *	by an entry specifying mask 0.  Returns the number of fatal interrupt
  *	conditions.
diff --git a/drivers/net/cxgb4vf/cxgb4vf_main.c b/drivers/net/cxgb4vf/cxgb4vf_main.c
index 6aad64df4dcb..4661cbbd9bd9 100644
--- a/drivers/net/cxgb4vf/cxgb4vf_main.c
+++ b/drivers/net/cxgb4vf/cxgb4vf_main.c
@@ -2738,7 +2738,7 @@ static int __devinit cxgb4vf_pci_probe(struct pci_dev *pdev,
 	cfg_queues(adapter);
 
 	/*
-	 * Print a short notice on the existance and configuration of the new
+	 * Print a short notice on the existence and configuration of the new
 	 * VF network device ...
 	 */
 	for_each_port(adapter, pidx) {
diff --git a/drivers/net/cxgb4vf/sge.c b/drivers/net/cxgb4vf/sge.c
index e0b3d1bc2fdf..bb65121f581c 100644
--- a/drivers/net/cxgb4vf/sge.c
+++ b/drivers/net/cxgb4vf/sge.c
@@ -224,8 +224,8 @@ static inline bool is_buf_mapped(const struct rx_sw_desc *sdesc)
 /**
  *	need_skb_unmap - does the platform need unmapping of sk_buffs?
  *
- *	Returns true if the platfrom needs sk_buff unmapping.  The compiler
- *	optimizes away unecessary code if this returns true.
+ *	Returns true if the platform needs sk_buff unmapping.  The compiler
+ *	optimizes away unnecessary code if this returns true.
  */
 static inline int need_skb_unmap(void)
 {
@@ -267,7 +267,7 @@ static inline unsigned int fl_cap(const struct sge_fl *fl)
  *
  *	Tests specified Free List to see whether the number of buffers
  *	available to the hardware has falled below our "starvation"
- *	threshhold.
+ *	threshold.
  */
 static inline bool fl_starving(const struct sge_fl *fl)
 {
@@ -1149,7 +1149,7 @@ int t4vf_eth_xmit(struct sk_buff *skb, struct net_device *dev)
 	if (unlikely(credits < ETHTXQ_STOP_THRES)) {
 		/*
 		 * After we're done injecting the Work Request for this
-		 * packet, we'll be below our "stop threshhold" so stop the TX
+		 * packet, we'll be below our "stop threshold" so stop the TX
 		 * Queue now and schedule a request for an SGE Egress Queue
 		 * Update message.  The queue will get started later on when
 		 * the firmware processes this Work Request and sends us an
diff --git a/drivers/net/davinci_cpdma.c b/drivers/net/davinci_cpdma.c
index e92b2b6cd8c4..ae47f23ba930 100644
--- a/drivers/net/davinci_cpdma.c
+++ b/drivers/net/davinci_cpdma.c
@@ -76,6 +76,7 @@ struct cpdma_desc {
 
 struct cpdma_desc_pool {
 	u32			phys;
+	u32			hw_addr;
 	void __iomem		*iomap;		/* ioremap map */
 	void			*cpumap;	/* dma_alloc map */
 	int			desc_size, mem_size;
@@ -137,7 +138,8 @@ struct cpdma_chan {
  * abstract out these details
  */
 static struct cpdma_desc_pool *
-cpdma_desc_pool_create(struct device *dev, u32 phys, int size, int align)
+cpdma_desc_pool_create(struct device *dev, u32 phys, u32 hw_addr,
+				int size, int align)
 {
 	int bitmap_size;
 	struct cpdma_desc_pool *pool;
@@ -161,10 +163,12 @@ cpdma_desc_pool_create(struct device *dev, u32 phys, int size, int align)
 	if (phys) {
 		pool->phys  = phys;
 		pool->iomap = ioremap(phys, size);
+		pool->hw_addr = hw_addr;
 	} else {
 		pool->cpumap = dma_alloc_coherent(dev, size, &pool->phys,
 						  GFP_KERNEL);
 		pool->iomap = (void __force __iomem *)pool->cpumap;
+		pool->hw_addr = pool->phys;
 	}
 
 	if (pool->iomap)
@@ -201,14 +205,14 @@ static inline dma_addr_t desc_phys(struct cpdma_desc_pool *pool,
 {
 	if (!desc)
 		return 0;
-	return pool->phys + (__force dma_addr_t)desc -
+	return pool->hw_addr + (__force dma_addr_t)desc -
 			    (__force dma_addr_t)pool->iomap;
 }
 
 static inline struct cpdma_desc __iomem *
 desc_from_phys(struct cpdma_desc_pool *pool, dma_addr_t dma)
 {
-	return dma ? pool->iomap + dma - pool->phys : NULL;
+	return dma ? pool->iomap + dma - pool->hw_addr : NULL;
 }
 
 static struct cpdma_desc __iomem *
@@ -260,6 +264,7 @@ struct cpdma_ctlr *cpdma_ctlr_create(struct cpdma_params *params)
 
 	ctlr->pool = cpdma_desc_pool_create(ctlr->dev,
 					    ctlr->params.desc_mem_phys,
+					    ctlr->params.desc_hw_addr,
 					    ctlr->params.desc_mem_size,
 					    ctlr->params.desc_align);
 	if (!ctlr->pool) {
diff --git a/drivers/net/davinci_cpdma.h b/drivers/net/davinci_cpdma.h
index 868e50ebde45..afa19a0c0d81 100644
--- a/drivers/net/davinci_cpdma.h
+++ b/drivers/net/davinci_cpdma.h
@@ -33,6 +33,7 @@ struct cpdma_params {
 	bool			has_soft_reset;
 	int			min_packet_size;
 	u32			desc_mem_phys;
+	u32			desc_hw_addr;
 	int			desc_mem_size;
 	int			desc_align;
 
diff --git a/drivers/net/davinci_emac.c b/drivers/net/davinci_emac.c
index 082d6ea69920..807b6bb200eb 100644
--- a/drivers/net/davinci_emac.c
+++ b/drivers/net/davinci_emac.c
@@ -94,14 +94,14 @@ MODULE_VERSION(EMAC_MODULE_VERSION);
 static const char emac_version_string[] = "TI DaVinci EMAC Linux v6.1";
 
 /* Configuration items */
-#define EMAC_DEF_PASS_CRC		(0) /* Do not pass CRC upto frames */
+#define EMAC_DEF_PASS_CRC		(0) /* Do not pass CRC up to frames */
 #define EMAC_DEF_QOS_EN			(0) /* EMAC proprietary QoS disabled */
 #define EMAC_DEF_NO_BUFF_CHAIN		(0) /* No buffer chain */
 #define EMAC_DEF_MACCTRL_FRAME_EN	(0) /* Discard Maccontrol frames */
 #define EMAC_DEF_SHORT_FRAME_EN		(0) /* Discard short frames */
 #define EMAC_DEF_ERROR_FRAME_EN		(0) /* Discard error frames */
-#define EMAC_DEF_PROM_EN		(0) /* Promiscous disabled */
-#define EMAC_DEF_PROM_CH		(0) /* Promiscous channel is 0 */
+#define EMAC_DEF_PROM_EN		(0) /* Promiscuous disabled */
+#define EMAC_DEF_PROM_CH		(0) /* Promiscuous channel is 0 */
 #define EMAC_DEF_BCAST_EN		(1) /* Broadcast enabled */
 #define EMAC_DEF_BCAST_CH		(0) /* Broadcast channel is 0 */
 #define EMAC_DEF_MCAST_EN		(1) /* Multicast enabled */
@@ -1013,7 +1013,7 @@ static void emac_rx_handler(void *token, int len, int status)
 		return;
 	}
 
-	/* recycle on recieve error */
+	/* recycle on receive error */
 	if (status < 0) {
 		ndev->stats.rx_errors++;
 		goto recycle;
@@ -1854,10 +1854,13 @@ static int __devinit davinci_emac_probe(struct platform_device *pdev)
 	dma_params.rxcp			= priv->emac_base + 0x660;
 	dma_params.num_chan		= EMAC_MAX_TXRX_CHANNELS;
 	dma_params.min_packet_size	= EMAC_DEF_MIN_ETHPKTSIZE;
-	dma_params.desc_mem_phys	= hw_ram_addr;
+	dma_params.desc_hw_addr		= hw_ram_addr;
 	dma_params.desc_mem_size	= pdata->ctrl_ram_size;
 	dma_params.desc_align		= 16;
 
+	dma_params.desc_mem_phys = pdata->no_bd_ram ? 0 :
+			(u32 __force)res->start + pdata->ctrl_ram_offset;
+
 	priv->dma = cpdma_ctlr_create(&dma_params);
 	if (!priv->dma) {
 		dev_err(emac_dev, "DaVinci EMAC: Error initializing DMA\n");
diff --git a/drivers/net/dm9000.c b/drivers/net/dm9000.c
index 317708113601..b7af5bab9937 100644
--- a/drivers/net/dm9000.c
+++ b/drivers/net/dm9000.c
@@ -621,9 +621,9 @@ static int dm9000_set_wol(struct net_device *dev, struct ethtool_wolinfo *w)
 		/* change in wol state, update IRQ state */
 
 		if (!dm->wake_state)
-			set_irq_wake(dm->irq_wake, 1);
+			irq_set_irq_wake(dm->irq_wake, 1);
 		else if (dm->wake_state & !opts)
-			set_irq_wake(dm->irq_wake, 0);
+			irq_set_irq_wake(dm->irq_wake, 0);
 	}
 
 	dm->wake_state = opts;
@@ -1424,13 +1424,13 @@ dm9000_probe(struct platform_device *pdev)
 		} else {
 
 			/* test to see if irq is really wakeup capable */
-			ret = set_irq_wake(db->irq_wake, 1);
+			ret = irq_set_irq_wake(db->irq_wake, 1);
 			if (ret) {
 				dev_err(db->dev, "irq %d cannot set wakeup (%d)\n",
 					db->irq_wake, ret);
 				ret = 0;
 			} else {
-				set_irq_wake(db->irq_wake, 0);
+				irq_set_irq_wake(db->irq_wake, 0);
 				db->wake_supported = 1;
 			}
 		}
diff --git a/drivers/net/e1000/e1000_ethtool.c b/drivers/net/e1000/e1000_ethtool.c
index f4d0922ec65b..dd70738eb2f4 100644
--- a/drivers/net/e1000/e1000_ethtool.c
+++ b/drivers/net/e1000/e1000_ethtool.c
@@ -160,7 +160,7 @@ static int e1000_get_settings(struct net_device *netdev,
 		                                   &adapter->link_duplex);
 		ecmd->speed = adapter->link_speed;
 
-		/* unfortunatly FULL_DUPLEX != DUPLEX_FULL
+		/* unfortunately FULL_DUPLEX != DUPLEX_FULL
 		 *          and HALF_DUPLEX != DUPLEX_HALF */
 
 		if (adapter->link_duplex == FULL_DUPLEX)
diff --git a/drivers/net/e1000/e1000_hw.h b/drivers/net/e1000/e1000_hw.h
index c70b23d52284..5c9a8403668b 100644
--- a/drivers/net/e1000/e1000_hw.h
+++ b/drivers/net/e1000/e1000_hw.h
@@ -1026,7 +1026,7 @@ extern void __iomem *ce4100_gbe_mdio_base_virt;
 
 #define E1000_KUMCTRLSTA 0x00034	/* MAC-PHY interface - RW */
 #define E1000_MDPHYA     0x0003C	/* PHY address - RW */
-#define E1000_MANC2H     0x05860	/* Managment Control To Host - RW */
+#define E1000_MANC2H     0x05860	/* Management Control To Host - RW */
 #define E1000_SW_FW_SYNC 0x05B5C	/* Software-Firmware Synchronization - RW */
 
 #define E1000_GCR       0x05B00	/* PCI-Ex Control */
diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c
index bfab14092d2c..477e066a1cf0 100644
--- a/drivers/net/e1000/e1000_main.c
+++ b/drivers/net/e1000/e1000_main.c
@@ -205,7 +205,7 @@ static struct pci_driver e1000_driver = {
 	.probe    = e1000_probe,
 	.remove   = __devexit_p(e1000_remove),
 #ifdef CONFIG_PM
-	/* Power Managment Hooks */
+	/* Power Management Hooks */
 	.suspend  = e1000_suspend,
 	.resume   = e1000_resume,
 #endif
diff --git a/drivers/net/e1000e/netdev.c b/drivers/net/e1000e/netdev.c
index a39d4a4d871c..506a0a0043b3 100644
--- a/drivers/net/e1000e/netdev.c
+++ b/drivers/net/e1000e/netdev.c
@@ -4886,7 +4886,7 @@ static netdev_tx_t e1000_xmit_frame(struct sk_buff *skb,
 	if (skb->protocol == htons(ETH_P_IP))
 		tx_flags |= E1000_TX_FLAGS_IPV4;
 
-	/* if count is 0 then mapping error has occured */
+	/* if count is 0 then mapping error has occurred */
 	count = e1000_tx_map(adapter, skb, first, max_per_txd, nr_frags, mss);
 	if (count) {
 		e1000_tx_queue(adapter, tx_flags, count);
diff --git a/drivers/net/enc28j60_hw.h b/drivers/net/enc28j60_hw.h
index 1a0b20969f80..25b41de49f0e 100644
--- a/drivers/net/enc28j60_hw.h
+++ b/drivers/net/enc28j60_hw.h
@@ -303,7 +303,7 @@
 /* maximum ethernet frame length */
 #define MAX_FRAMELEN		1518
 
-/* Prefered half duplex: LEDA: Link status LEDB: Rx/Tx activity */
+/* Preferred half duplex: LEDA: Link status LEDB: Rx/Tx activity */
 #define ENC28J60_LAMPS_MODE	0x3476
 
 #endif
diff --git a/drivers/net/eth16i.c b/drivers/net/eth16i.c
index fb717be511f6..12d28e9d0cb7 100644
--- a/drivers/net/eth16i.c
+++ b/drivers/net/eth16i.c
@@ -13,7 +13,7 @@
    This driver supports following cards :
 	- ICL EtherTeam 16i
 	- ICL EtherTeam 32 EISA
-	  (Uses true 32 bit transfers rather than 16i compability mode)
+	  (Uses true 32 bit transfers rather than 16i compatibility mode)
 
    Example Module usage:
         insmod eth16i.o io=0x2a0 mediatype=bnc
diff --git a/drivers/net/ethoc.c b/drivers/net/ethoc.c
index db0290f05bdf..a83dd312c3ac 100644
--- a/drivers/net/ethoc.c
+++ b/drivers/net/ethoc.c
@@ -542,7 +542,7 @@ static irqreturn_t ethoc_interrupt(int irq, void *dev_id)
 
 	/* Figure out what triggered the interrupt...
 	 * The tricky bit here is that the interrupt source bits get
-	 * set in INT_SOURCE for an event irregardless of whether that
+	 * set in INT_SOURCE for an event regardless of whether that
 	 * event is masked or not.  Thus, in order to figure out what
 	 * triggered the interrupt, we need to remove the sources
 	 * for all events that are currently masked.  This behaviour
diff --git a/drivers/net/fec.h b/drivers/net/fec.h
index ace318df4c8d..8b2c6d797e6d 100644
--- a/drivers/net/fec.h
+++ b/drivers/net/fec.h
@@ -97,11 +97,11 @@ struct bufdesc {
  *	The following definitions courtesy of commproc.h, which where
  *	Copyright (c) 1997 Dan Malek (dmalek@jlc.net).
  */
-#define BD_SC_EMPTY     ((ushort)0x8000)        /* Recieve is empty */
+#define BD_SC_EMPTY     ((ushort)0x8000)        /* Receive is empty */
 #define BD_SC_READY     ((ushort)0x8000)        /* Transmit is ready */
 #define BD_SC_WRAP      ((ushort)0x2000)        /* Last buffer descriptor */
 #define BD_SC_INTRPT    ((ushort)0x1000)        /* Interrupt on change */
-#define BD_SC_CM        ((ushort)0x0200)        /* Continous mode */
+#define BD_SC_CM        ((ushort)0x0200)        /* Continuous mode */
 #define BD_SC_ID        ((ushort)0x0100)        /* Rec'd too many idles */
 #define BD_SC_P         ((ushort)0x0100)        /* xmt preamble */
 #define BD_SC_BR        ((ushort)0x0020)        /* Break received */
diff --git a/drivers/net/forcedeth.c b/drivers/net/forcedeth.c
index 7b92897ca66b..d5ab4dad5051 100644
--- a/drivers/net/forcedeth.c
+++ b/drivers/net/forcedeth.c
@@ -440,7 +440,7 @@ union ring_type {
 #define NV_RX3_VLAN_TAG_PRESENT (1<<16)
 #define NV_RX3_VLAN_TAG_MASK	(0x0000FFFF)
 
-/* Miscelaneous hardware related defines: */
+/* Miscellaneous hardware related defines: */
 #define NV_PCI_REGSZ_VER1	0x270
 #define NV_PCI_REGSZ_VER2	0x2d4
 #define NV_PCI_REGSZ_VER3	0x604
@@ -1488,7 +1488,7 @@ static int phy_init(struct net_device *dev)
 		}
 	}
 
-	/* some phys clear out pause advertisment on reset, set it back */
+	/* some phys clear out pause advertisement on reset, set it back */
 	mii_rw(dev, np->phyaddr, MII_ADVERTISE, reg);
 
 	/* restart auto negotiation, power down phy */
@@ -2535,7 +2535,7 @@ static void nv_tx_timeout(struct net_device *dev)
 	else
 		nv_tx_done_optimized(dev, np->tx_ring_size);
 
-	/* save current HW postion */
+	/* save current HW position */
 	if (np->tx_change_owner)
 		put_tx.ex = np->tx_change_owner->first_tx_desc;
 	else
@@ -4053,7 +4053,7 @@ static int nv_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
 
 	} else if (ecmd->autoneg == AUTONEG_DISABLE) {
 		/* Note: autonegotiation disable, speed 1000 intentionally
-		 * forbidden - noone should need that. */
+		 * forbidden - no one should need that. */
 
 		if (ecmd->speed != SPEED_10 && ecmd->speed != SPEED_100)
 			return -EINVAL;
@@ -4103,7 +4103,7 @@ static int nv_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
 			adv |= ADVERTISE_100HALF;
 		if (ecmd->advertising & ADVERTISED_100baseT_Full)
 			adv |= ADVERTISE_100FULL;
-		if (np->pause_flags & NV_PAUSEFRAME_RX_REQ)  /* for rx we set both advertisments but disable tx pause */
+		if (np->pause_flags & NV_PAUSEFRAME_RX_REQ)  /* for rx we set both advertisements but disable tx pause */
 			adv |=  ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
 		if (np->pause_flags & NV_PAUSEFRAME_TX_REQ)
 			adv |=  ADVERTISE_PAUSE_ASYM;
@@ -4148,7 +4148,7 @@ static int nv_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
 		if (ecmd->speed == SPEED_100 && ecmd->duplex == DUPLEX_FULL)
 			adv |= ADVERTISE_100FULL;
 		np->pause_flags &= ~(NV_PAUSEFRAME_AUTONEG|NV_PAUSEFRAME_RX_ENABLE|NV_PAUSEFRAME_TX_ENABLE);
-		if (np->pause_flags & NV_PAUSEFRAME_RX_REQ) {/* for rx we set both advertisments but disable tx pause */
+		if (np->pause_flags & NV_PAUSEFRAME_RX_REQ) {/* for rx we set both advertisements but disable tx pause */
 			adv |=  ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
 			np->pause_flags |= NV_PAUSEFRAME_RX_ENABLE;
 		}
@@ -4449,7 +4449,7 @@ static int nv_set_pauseparam(struct net_device *dev, struct ethtool_pauseparam*
 
 		adv = mii_rw(dev, np->phyaddr, MII_ADVERTISE, MII_READ);
 		adv &= ~(ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM);
-		if (np->pause_flags & NV_PAUSEFRAME_RX_REQ) /* for rx we set both advertisments but disable tx pause */
+		if (np->pause_flags & NV_PAUSEFRAME_RX_REQ) /* for rx we set both advertisements but disable tx pause */
 			adv |=  ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
 		if (np->pause_flags & NV_PAUSEFRAME_TX_REQ)
 			adv |=  ADVERTISE_PAUSE_ASYM;
diff --git a/drivers/net/gianfar.h b/drivers/net/gianfar.h
index ec5d595ce2e2..b2fe7edefad9 100644
--- a/drivers/net/gianfar.h
+++ b/drivers/net/gianfar.h
@@ -1043,7 +1043,7 @@ enum gfar_errata {
 };
 
 /* Struct stolen almost completely (and shamelessly) from the FCC enet source
- * (Ok, that's not so true anymore, but there is a family resemblence)
+ * (Ok, that's not so true anymore, but there is a family resemblance)
  * The GFAR buffer descriptors track the ring buffers.  The rx_bd_base
  * and tx_bd_base always point to the currently available buffer.
  * The dirty_tx tracks the current buffer that is being sent by the
diff --git a/drivers/net/hamradio/Makefile b/drivers/net/hamradio/Makefile
index 9def86704a91..104096070026 100644
--- a/drivers/net/hamradio/Makefile
+++ b/drivers/net/hamradio/Makefile
@@ -3,7 +3,7 @@
 #
 #
 # 19971130 	Moved the amateur radio related network drivers from 
-#		drivers/net/ to drivers/hamradio for easier maintainance.
+#		drivers/net/ to drivers/hamradio for easier maintenance.
 #               Joerg Reuter DL1BKE <jreuter@yaina.de>
 #
 # 20000806	Rewritten to use lists instead of if-statements.
diff --git a/drivers/net/hamradio/yam.c b/drivers/net/hamradio/yam.c
index 7d9ced0738c5..96a98d2ff151 100644
--- a/drivers/net/hamradio/yam.c
+++ b/drivers/net/hamradio/yam.c
@@ -30,7 +30,7 @@
  *   0.1 F1OAT 07.06.98  Add timer polling routine for channel arbitration
  *   0.2 F6FBB 08.06.98  Added delay after FPGA programming
  *   0.3 F6FBB 29.07.98  Delayed PTT implementation for dupmode=2
- *   0.4 F6FBB 30.07.98  Added TxTail, Slottime and Persistance
+ *   0.4 F6FBB 30.07.98  Added TxTail, Slottime and Persistence
  *   0.5 F6FBB 01.08.98  Shared IRQs, /proc/net and network statistics
  *   0.6 F6FBB 25.08.98  Added 1200Bds format
  *   0.7 F6FBB 12.09.98  Added to the kernel configuration
diff --git a/drivers/net/hp100.c b/drivers/net/hp100.c
index 8e2c4601b5f5..8e10d2f6a5ad 100644
--- a/drivers/net/hp100.c
+++ b/drivers/net/hp100.c
@@ -180,8 +180,8 @@ struct hp100_private {
 
 	u_int *page_vaddr_algn;	/* Aligned virtual address of allocated page */
 	u_long whatever_offset;	/* Offset to bus/phys/dma address */
-	int rxrcommit;		/* # Rx PDLs commited to adapter */
-	int txrcommit;		/* # Tx PDLs commited to adapter */
+	int rxrcommit;		/* # Rx PDLs committed to adapter */
+	int txrcommit;		/* # Tx PDLs committed to adapter */
 };
 
 /*
@@ -716,7 +716,7 @@ static int __devinit hp100_probe1(struct net_device *dev, int ioaddr,
 	 * implemented/tested only with the lassen chip anyway... */
 	if (lp->mode == 1) {	/* busmaster */
 		dma_addr_t page_baddr;
-		/* Get physically continous memory for TX & RX PDLs    */
+		/* Get physically continuous memory for TX & RX PDLs    */
 		/* Conversion to new PCI API :
 		 * Pages are always aligned and zeroed, no need to it ourself.
 		 * Doc says should be OK for EISA bus as well - Jean II */
@@ -1596,7 +1596,7 @@ drop:
 
 /* clean_txring checks if packets have been sent by the card by reading
  * the TX_PDL register from the performance page and comparing it to the
- * number of commited packets. It then frees the skb's of the packets that
+ * number of committed packets. It then frees the skb's of the packets that
  * obviously have been sent to the network.
  *
  * Needs the PERFORMANCE page selected.
@@ -1617,7 +1617,7 @@ static void hp100_clean_txring(struct net_device *dev)
 
 #ifdef HP100_DEBUG
 	if (donecount > MAX_TX_PDL)
-		printk("hp100: %s: Warning: More PDLs transmitted than commited to card???\n", dev->name);
+		printk("hp100: %s: Warning: More PDLs transmitted than committed to card???\n", dev->name);
 #endif
 
 	for (; 0 != donecount; donecount--) {
@@ -1765,7 +1765,7 @@ drop:
  * Receive Function (Non-Busmaster mode)
  * Called when an "Receive Packet" interrupt occurs, i.e. the receive
  * packet counter is non-zero.
- * For non-busmaster, this function does the whole work of transfering
+ * For non-busmaster, this function does the whole work of transferring
  * the packet to the host memory and then up to higher layers via skb
  * and netif_rx.
  */
@@ -1892,7 +1892,7 @@ static void hp100_rx_bm(struct net_device *dev)
 		/* RX_PKT_CNT states how many PDLs are currently formatted and available to
 		 * the cards BM engine */
 	if ((hp100_inw(RX_PKT_CNT) & 0x00ff) >= lp->rxrcommit) {
-		printk("hp100: %s: More packets received than commited? RX_PKT_CNT=0x%x, commit=0x%x\n",
+		printk("hp100: %s: More packets received than committed? RX_PKT_CNT=0x%x, commit=0x%x\n",
 				     dev->name, hp100_inw(RX_PKT_CNT) & 0x00ff,
 				     lp->rxrcommit);
 		return;
@@ -2256,7 +2256,7 @@ static irqreturn_t hp100_interrupt(int irq, void *dev_id)
 		if (lp->mode != 1)	/* non busmaster */
 			hp100_rx(dev);
 		else if (!(val & HP100_RX_PDL_FILL_COMPL)) {
-			/* Shouldnt happen - maybe we missed a RX_PDL_FILL Interrupt?  */
+			/* Shouldn't happen - maybe we missed a RX_PDL_FILL Interrupt?  */
 			hp100_rx_bm(dev);
 		}
 	}
diff --git a/drivers/net/hp100.h b/drivers/net/hp100.h
index e6ca128a5564..b60e96fe38b4 100644
--- a/drivers/net/hp100.h
+++ b/drivers/net/hp100.h
@@ -109,7 +109,7 @@
 #define HP100_REG_MAC_CFG_2	0x0d	/* RW: (8) Misc MAC functions        */
 #define HP100_REG_MAC_CFG_3     0x0e	/* RW: (8) Misc MAC functions */
 #define HP100_REG_MAC_CFG_4     0x0f	/* R:  (8) Misc MAC states */
-#define HP100_REG_DROPPED	0x10	/* R:  (16),11:0 Pkts cant fit in mem */
+#define HP100_REG_DROPPED	0x10	/* R:  (16),11:0 Pkts can't fit in mem */
 #define HP100_REG_CRC		0x12	/* R:  (8) Pkts with CRC             */
 #define HP100_REG_ABORT		0x13	/* R:  (8) Aborted Tx pkts           */
 #define HP100_REG_TRAIN_REQUEST 0x14	/* RW: (16) Endnode MAC register. */
diff --git a/drivers/net/ibm_newemac/tah.c b/drivers/net/ibm_newemac/tah.c
index 8ead6a96abaa..5f51bf7c9dc5 100644
--- a/drivers/net/ibm_newemac/tah.c
+++ b/drivers/net/ibm_newemac/tah.c
@@ -60,7 +60,7 @@ void tah_reset(struct platform_device *ofdev)
 		printk(KERN_ERR "%s: reset timeout\n",
 			ofdev->dev.of_node->full_name);
 
-	/* 10KB TAH TX FIFO accomodates the max MTU of 9000 */
+	/* 10KB TAH TX FIFO accommodates the max MTU of 9000 */
 	out_be32(&p->mr,
 		 TAH_MR_CVR | TAH_MR_ST_768 | TAH_MR_TFS_10KB | TAH_MR_DTFP |
 		 TAH_MR_DIG);
diff --git a/drivers/net/ibmlana.c b/drivers/net/ibmlana.c
index 94d9969ec0bb..8ff68ae6b520 100644
--- a/drivers/net/ibmlana.c
+++ b/drivers/net/ibmlana.c
@@ -53,7 +53,7 @@ History:
 	still work with 2.0.x....
   Jan 28th, 2000
 	in Linux 2.2.13, the version.h file mysteriously didn't get
-	included.  Added a workaround for this.  Futhermore, it now
+	included.  Added a workaround for this.  Furthermore, it now
 	not only compiles as a modules ;-)
   Jan 30th, 2000
 	newer kernels automatically probe more than one board, so the
@@ -481,7 +481,7 @@ static void InitBoard(struct net_device *dev)
 	if ((dev->flags & IFF_ALLMULTI) || netdev_mc_count(dev) > camcnt)
 		rcrval |= RCREG_AMC;
 
-	/* promiscous mode ? */
+	/* promiscuous mode ? */
 
 	if (dev->flags & IFF_PROMISC)
 		rcrval |= RCREG_PRO;
diff --git a/drivers/net/ibmlana.h b/drivers/net/ibmlana.h
index aa3ddbdee4bb..accd5efc9c8a 100644
--- a/drivers/net/ibmlana.h
+++ b/drivers/net/ibmlana.h
@@ -90,7 +90,7 @@ typedef struct {
 #define RCREG_ERR        0x8000	/* accept damaged and collided pkts */
 #define RCREG_RNT        0x4000	/* accept packets that are < 64     */
 #define RCREG_BRD        0x2000	/* accept broadcasts                */
-#define RCREG_PRO        0x1000	/* promiscous mode                  */
+#define RCREG_PRO        0x1000	/* promiscuous mode                  */
 #define RCREG_AMC        0x0800	/* accept all multicasts            */
 #define RCREG_LB_NONE    0x0000	/* no loopback                      */
 #define RCREG_LB_MAC     0x0200	/* MAC loopback                     */
diff --git a/drivers/net/igb/e1000_mac.c b/drivers/net/igb/e1000_mac.c
index 90c5e01e9235..ce8255fc3c52 100644
--- a/drivers/net/igb/e1000_mac.c
+++ b/drivers/net/igb/e1000_mac.c
@@ -181,7 +181,7 @@ s32 igb_vfta_set(struct e1000_hw *hw, u32 vid, bool add)
  *  address and must override the actual permanent MAC address.  If an
  *  alternate MAC address is fopund it is saved in the hw struct and
  *  prgrammed into RAR0 and the cuntion returns success, otherwise the
- *  fucntion returns an error.
+ *  function returns an error.
  **/
 s32 igb_check_alt_mac_addr(struct e1000_hw *hw)
 {
@@ -982,7 +982,7 @@ out:
 }
 
 /**
- *  igb_get_speed_and_duplex_copper - Retreive current speed/duplex
+ *  igb_get_speed_and_duplex_copper - Retrieve current speed/duplex
  *  @hw: pointer to the HW structure
  *  @speed: stores the current speed
  *  @duplex: stores the current duplex
diff --git a/drivers/net/igb/e1000_phy.c b/drivers/net/igb/e1000_phy.c
index 6694bf3e5ad9..d639706eb3f6 100644
--- a/drivers/net/igb/e1000_phy.c
+++ b/drivers/net/igb/e1000_phy.c
@@ -1421,7 +1421,7 @@ out:
 }
 
 /**
- *  igb_check_downshift - Checks whether a downshift in speed occured
+ *  igb_check_downshift - Checks whether a downshift in speed occurred
  *  @hw: pointer to the HW structure
  *
  *  Success returns 0, Failure returns 1
diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index 3d850af0cdda..0dfd1b93829e 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -200,7 +200,7 @@ static struct pci_driver igb_driver = {
 	.probe    = igb_probe,
 	.remove   = __devexit_p(igb_remove),
 #ifdef CONFIG_PM
-	/* Power Managment Hooks */
+	/* Power Management Hooks */
 	.suspend  = igb_suspend,
 	.resume   = igb_resume,
 #endif
@@ -2292,7 +2292,7 @@ static void igb_init_hw_timer(struct igb_adapter *adapter)
 		/**
 		 * Scale the NIC clock cycle by a large factor so that
 		 * relatively small clock corrections can be added or
-		 * substracted at each clock tick. The drawbacks of a large
+		 * subtracted at each clock tick. The drawbacks of a large
 		 * factor are a) that the clock register overflows more quickly
 		 * (not such a big deal) and b) that the increment per tick has
 		 * to fit into 24 bits.  As a result we need to use a shift of
@@ -3409,7 +3409,7 @@ static void igb_set_rx_mode(struct net_device *netdev)
 		} else {
 			/*
 			 * Write addresses to the MTA, if the attempt fails
-			 * then we should just turn on promiscous mode so
+			 * then we should just turn on promiscuous mode so
 			 * that we can at least receive multicast traffic
 			 */
 			count = igb_write_mc_addr_list(netdev);
@@ -3423,7 +3423,7 @@ static void igb_set_rx_mode(struct net_device *netdev)
 		/*
 		 * Write addresses to available RAR registers, if there is not
 		 * sufficient space to store all the addresses then enable
-		 * unicast promiscous mode
+		 * unicast promiscuous mode
 		 */
 		count = igb_write_uc_addr_list(netdev);
 		if (count < 0) {
@@ -4317,7 +4317,7 @@ netdev_tx_t igb_xmit_frame_ring_adv(struct sk_buff *skb,
 
 	/*
 	 * count reflects descriptors mapped, if 0 or less then mapping error
-	 * has occured and we need to rewind the descriptor queue
+	 * has occurred and we need to rewind the descriptor queue
 	 */
 	count = igb_tx_map_adv(tx_ring, skb, first);
 	if (!count) {
@@ -5352,8 +5352,8 @@ static void igb_msg_task(struct igb_adapter *adapter)
  *  The unicast table address is a register array of 32-bit registers.
  *  The table is meant to be used in a way similar to how the MTA is used
  *  however due to certain limitations in the hardware it is necessary to
- *  set all the hash bits to 1 and use the VMOLR ROPE bit as a promiscous
- *  enable bit to allow vlan tag stripping when promiscous mode is enabled
+ *  set all the hash bits to 1 and use the VMOLR ROPE bit as a promiscuous
+ *  enable bit to allow vlan tag stripping when promiscuous mode is enabled
  **/
 static void igb_set_uta(struct igb_adapter *adapter)
 {
diff --git a/drivers/net/igbvf/netdev.c b/drivers/net/igbvf/netdev.c
index 6ccc32fd7338..1d04ca6fdaea 100644
--- a/drivers/net/igbvf/netdev.c
+++ b/drivers/net/igbvf/netdev.c
@@ -2227,7 +2227,7 @@ static netdev_tx_t igbvf_xmit_frame_ring_adv(struct sk_buff *skb,
 
 	/*
 	 * count reflects descriptors mapped, if 0 then mapping error
-	 * has occured and we need to rewind the descriptor queue
+	 * has occurred and we need to rewind the descriptor queue
 	 */
 	count = igbvf_tx_map_adv(adapter, tx_ring, skb, first);
 
diff --git a/drivers/net/ipg.c b/drivers/net/ipg.c
index a5b0f0e194bb..58cd3202b48c 100644
--- a/drivers/net/ipg.c
+++ b/drivers/net/ipg.c
@@ -486,14 +486,14 @@ static int ipg_config_autoneg(struct net_device *dev)
 	phyctrl = ipg_r8(PHY_CTRL);
 	mac_ctrl_val = ipg_r32(MAC_CTRL);
 
-	/* Set flags for use in resolving auto-negotation, assuming
+	/* Set flags for use in resolving auto-negotiation, assuming
 	 * non-1000Mbps, half duplex, no flow control.
 	 */
 	fullduplex = 0;
 	txflowcontrol = 0;
 	rxflowcontrol = 0;
 
-	/* To accomodate a problem in 10Mbps operation,
+	/* To accommodate a problem in 10Mbps operation,
 	 * set a global flag if PHY running in 10Mbps mode.
 	 */
 	sp->tenmbpsmode = 0;
@@ -846,7 +846,7 @@ static void init_tfdlist(struct net_device *dev)
 }
 
 /*
- * Free all transmit buffers which have already been transfered
+ * Free all transmit buffers which have already been transferred
  * via DMA to the IPG.
  */
 static void ipg_nic_txfree(struct net_device *dev)
@@ -920,7 +920,7 @@ static void ipg_tx_timeout(struct net_device *dev)
 
 /*
  * For TxComplete interrupts, free all transmit
- * buffers which have already been transfered via DMA
+ * buffers which have already been transferred via DMA
  * to the IPG.
  */
 static void ipg_nic_txcleanup(struct net_device *dev)
@@ -1141,13 +1141,13 @@ static int ipg_nic_rx_check_error(struct net_device *dev)
 
 		/* Increment detailed receive error statistics. */
 		if (le64_to_cpu(rxfd->rfs) & IPG_RFS_RXFIFOOVERRUN) {
-			IPG_DEBUG_MSG("RX FIFO overrun occured.\n");
+			IPG_DEBUG_MSG("RX FIFO overrun occurred.\n");
 
 			sp->stats.rx_fifo_errors++;
 		}
 
 		if (le64_to_cpu(rxfd->rfs) & IPG_RFS_RXRUNTFRAME) {
-			IPG_DEBUG_MSG("RX runt occured.\n");
+			IPG_DEBUG_MSG("RX runt occurred.\n");
 			sp->stats.rx_length_errors++;
 		}
 
@@ -1156,7 +1156,7 @@ static int ipg_nic_rx_check_error(struct net_device *dev)
 		 */
 
 		if (le64_to_cpu(rxfd->rfs) & IPG_RFS_RXALIGNMENTERROR) {
-			IPG_DEBUG_MSG("RX alignment error occured.\n");
+			IPG_DEBUG_MSG("RX alignment error occurred.\n");
 			sp->stats.rx_frame_errors++;
 		}
 
@@ -1421,12 +1421,12 @@ static int ipg_nic_rx(struct net_device *dev)
 
 			/* Increment detailed receive error statistics. */
 			if (le64_to_cpu(rxfd->rfs) & IPG_RFS_RXFIFOOVERRUN) {
-				IPG_DEBUG_MSG("RX FIFO overrun occured.\n");
+				IPG_DEBUG_MSG("RX FIFO overrun occurred.\n");
 				sp->stats.rx_fifo_errors++;
 			}
 
 			if (le64_to_cpu(rxfd->rfs) & IPG_RFS_RXRUNTFRAME) {
-				IPG_DEBUG_MSG("RX runt occured.\n");
+				IPG_DEBUG_MSG("RX runt occurred.\n");
 				sp->stats.rx_length_errors++;
 			}
 
@@ -1436,7 +1436,7 @@ static int ipg_nic_rx(struct net_device *dev)
 			 */
 
 			if (le64_to_cpu(rxfd->rfs) & IPG_RFS_RXALIGNMENTERROR) {
-				IPG_DEBUG_MSG("RX alignment error occured.\n");
+				IPG_DEBUG_MSG("RX alignment error occurred.\n");
 				sp->stats.rx_frame_errors++;
 			}
 
@@ -1460,7 +1460,7 @@ static int ipg_nic_rx(struct net_device *dev)
 			}
 		} else {
 
-			/* Adjust the new buffer length to accomodate the size
+			/* Adjust the new buffer length to accommodate the size
 			 * of the received frame.
 			 */
 			skb_put(skb, framelen);
@@ -1488,7 +1488,7 @@ static int ipg_nic_rx(struct net_device *dev)
 	}
 
 	/*
-	 * If there are more RFDs to proces and the allocated amount of RFD
+	 * If there are more RFDs to process and the allocated amount of RFD
 	 * processing time has expired, assert Interrupt Requested to make
 	 * sure we come back to process the remaining RFDs.
 	 */
@@ -1886,7 +1886,7 @@ static netdev_tx_t ipg_nic_hard_start_xmit(struct sk_buff *skb,
 	/* Request TxComplete interrupts at an interval defined
 	 * by the constant IPG_FRAMESBETWEENTXCOMPLETES.
 	 * Request TxComplete interrupt for every frame
-	 * if in 10Mbps mode to accomodate problem with 10Mbps
+	 * if in 10Mbps mode to accommodate problem with 10Mbps
 	 * processing.
 	 */
 	if (sp->tenmbpsmode)
@@ -2098,7 +2098,7 @@ static int ipg_nic_change_mtu(struct net_device *dev, int new_mtu)
 	struct ipg_nic_private *sp = netdev_priv(dev);
 	int err;
 
-	/* Function to accomodate changes to Maximum Transfer Unit
+	/* Function to accommodate changes to Maximum Transfer Unit
 	 * (or MTU) of IPG NIC. Cannot use default function since
 	 * the default will not allow for MTU > 1500 bytes.
 	 */
diff --git a/drivers/net/irda/ali-ircc.c b/drivers/net/irda/ali-ircc.c
index 92631eb6f6a3..872183f29ec4 100644
--- a/drivers/net/irda/ali-ircc.c
+++ b/drivers/net/irda/ali-ircc.c
@@ -76,7 +76,7 @@ static int  ali_ircc_probe_53(ali_chip_t *chip, chipio_t *info);
 static int  ali_ircc_init_43(ali_chip_t *chip, chipio_t *info);
 static int  ali_ircc_init_53(ali_chip_t *chip, chipio_t *info);
 
-/* These are the currently known ALi sourth-bridge chipsets, the only one difference
+/* These are the currently known ALi south-bridge chipsets, the only one difference
  * is that M1543C doesn't support HP HDSL-3600
  */
 static ali_chip_t chips[] =
@@ -1108,7 +1108,7 @@ static void ali_ircc_sir_change_speed(struct ali_ircc_cb *priv, __u32 speed)
 	outb(lcr,		  iobase+UART_LCR); /* Set 8N1	*/
 	outb(fcr,		  iobase+UART_FCR); /* Enable FIFO's */
 
-	/* without this, the conection will be broken after come back from FIR speed,
+	/* without this, the connection will be broken after come back from FIR speed,
 	   but with this, the SIR connection is harder to established */
 	outb((UART_MCR_DTR | UART_MCR_RTS | UART_MCR_OUT2), iobase+UART_MCR);
 	
diff --git a/drivers/net/irda/donauboe.c b/drivers/net/irda/donauboe.c
index f81d944fc360..174cafad2c1a 100644
--- a/drivers/net/irda/donauboe.c
+++ b/drivers/net/irda/donauboe.c
@@ -56,7 +56,7 @@
 /* do_probe module parameter Enable this code */
 /* Probe code is very useful for understanding how the hardware works */
 /* Use it with various combinations of TT_LEN, RX_LEN */
-/* Strongly recomended, disable if the probe fails on your machine */
+/* Strongly recommended, disable if the probe fails on your machine */
 /* and send me <james@fishsoup.dhs.org> the output of dmesg */
 #define USE_PROBE 1
 #undef  USE_PROBE
diff --git a/drivers/net/irda/donauboe.h b/drivers/net/irda/donauboe.h
index 77fcf4459161..d92d54e839b9 100644
--- a/drivers/net/irda/donauboe.h
+++ b/drivers/net/irda/donauboe.h
@@ -51,7 +51,7 @@
 
 /* The documentation for this chip is allegedly released         */
 /* However I have not seen it, not have I managed to contact     */
-/* anyone who has. HOWEVER the chip bears a striking resemblence */
+/* anyone who has. HOWEVER the chip bears a striking resemblance */
 /* to the IrDA controller in the Toshiba RISC TMPR3922 chip      */
 /* the documentation for this is freely available at             */
 /* http://www.madingley.org/james/resources/toshoboe/TMPR3922.pdf */
diff --git a/drivers/net/irda/girbil-sir.c b/drivers/net/irda/girbil-sir.c
index a31b8fa8aaa9..96cdecff349d 100644
--- a/drivers/net/irda/girbil-sir.c
+++ b/drivers/net/irda/girbil-sir.c
@@ -38,7 +38,7 @@ static int girbil_change_speed(struct sir_dev *dev, unsigned speed);
 /* Control register 1 */
 #define GIRBIL_TXEN    0x01 /* Enable transmitter */
 #define GIRBIL_RXEN    0x02 /* Enable receiver */
-#define GIRBIL_ECAN    0x04 /* Cancel self emmited data */
+#define GIRBIL_ECAN    0x04 /* Cancel self emitted data */
 #define GIRBIL_ECHO    0x08 /* Echo control characters */
 
 /* LED Current Register (0x2) */
diff --git a/drivers/net/irda/irda-usb.c b/drivers/net/irda/irda-usb.c
index e4ea61944c22..d9267cb98a23 100644
--- a/drivers/net/irda/irda-usb.c
+++ b/drivers/net/irda/irda-usb.c
@@ -370,7 +370,7 @@ static void speed_bulk_callback(struct urb *urb)
 	/* urb is now available */
 	//urb->status = 0; -> tested above
 
-	/* New speed and xbof is now commited in hardware */
+	/* New speed and xbof is now committed in hardware */
 	self->new_speed = -1;
 	self->new_xbofs = -1;
 
@@ -602,7 +602,7 @@ static void write_bulk_callback(struct urb *urb)
 			IRDA_DEBUG(1, "%s(), Changing speed now...\n", __func__);
 			irda_usb_change_speed_xbofs(self);
 		} else {
-			/* New speed and xbof is now commited in hardware */
+			/* New speed and xbof is now committed in hardware */
 			self->new_speed = -1;
 			self->new_xbofs = -1;
 			/* Done, waiting for next packet */
diff --git a/drivers/net/irda/mcs7780.c b/drivers/net/irda/mcs7780.c
index cc821de2c966..be52bfed66a9 100644
--- a/drivers/net/irda/mcs7780.c
+++ b/drivers/net/irda/mcs7780.c
@@ -588,7 +588,7 @@ static int mcs_speed_change(struct mcs_cb *mcs)
 
 	mcs_get_reg(mcs, MCS_MODE_REG, &rval);
 
-	/* MINRXPW values recomended by MosChip */
+	/* MINRXPW values recommended by MosChip */
 	if (mcs->new_speed <= 115200) {
 		rval &= ~MCS_FIR;
 
@@ -799,7 +799,7 @@ static void mcs_receive_irq(struct urb *urb)
 	ret = usb_submit_urb(urb, GFP_ATOMIC);
 }
 
-/* Transmit callback funtion.  */
+/* Transmit callback function.  */
 static void mcs_send_irq(struct urb *urb)
 {
 	struct mcs_cb *mcs = urb->context;
@@ -811,7 +811,7 @@ static void mcs_send_irq(struct urb *urb)
 		netif_wake_queue(ndev);
 }
 
-/* Transmit callback funtion.  */
+/* Transmit callback function.  */
 static netdev_tx_t mcs_hard_xmit(struct sk_buff *skb,
 				       struct net_device *ndev)
 {
diff --git a/drivers/net/irda/nsc-ircc.c b/drivers/net/irda/nsc-ircc.c
index 559fe854d76d..7a963d4e6d06 100644
--- a/drivers/net/irda/nsc-ircc.c
+++ b/drivers/net/irda/nsc-ircc.c
@@ -716,7 +716,7 @@ static int nsc_ircc_probe_338(nsc_chip_t *chip, chipio_t *info)
 	int reg, com = 0;
 	int pnp;
 
-	/* Read funtion enable register (FER) */
+	/* Read function enable register (FER) */
 	outb(CFG_338_FER, cfg_base);
 	reg = inb(cfg_base+1);
 
diff --git a/drivers/net/irda/nsc-ircc.h b/drivers/net/irda/nsc-ircc.h
index 7ba7738759b9..32fa58211fad 100644
--- a/drivers/net/irda/nsc-ircc.h
+++ b/drivers/net/irda/nsc-ircc.h
@@ -135,7 +135,7 @@
 #define LSR_TXRDY       0x20 /* Transmitter ready */
 #define LSR_TXEMP       0x40 /* Transmitter empty */
 
-#define ASCR            0x07 /* Auxillary Status and Control Register */
+#define ASCR            0x07 /* Auxiliary Status and Control Register */
 #define ASCR_RXF_TOUT   0x01 /* Rx FIFO timeout */
 #define ASCR_FEND_INF   0x02 /* Frame end bytes in rx FIFO */
 #define ASCR_S_EOT      0x04 /* Set end of transmission */
diff --git a/drivers/net/irda/pxaficp_ir.c b/drivers/net/irda/pxaficp_ir.c
index c192c31e4c5c..001ed0a255f6 100644
--- a/drivers/net/irda/pxaficp_ir.c
+++ b/drivers/net/irda/pxaficp_ir.c
@@ -40,7 +40,7 @@
 
 #define ICCR0_AME	(1 << 7)	/* Address match enable */
 #define ICCR0_TIE	(1 << 6)	/* Transmit FIFO interrupt enable */
-#define ICCR0_RIE	(1 << 5)	/* Recieve FIFO interrupt enable */
+#define ICCR0_RIE	(1 << 5)	/* Receive FIFO interrupt enable */
 #define ICCR0_RXE	(1 << 4)	/* Receive enable */
 #define ICCR0_TXE	(1 << 3)	/* Transmit enable */
 #define ICCR0_TUS	(1 << 2)	/* Transmit FIFO underrun select */
@@ -483,7 +483,7 @@ static irqreturn_t pxa_irda_fir_irq(int irq, void *dev_id)
 	}
 
 	if (icsr0 & ICSR0_EIF) {
-		/* An error in FIFO occured, or there is a end of frame */
+		/* An error in FIFO occurred, or there is a end of frame */
 		pxa_irda_fir_irq_eif(si, dev, icsr0);
 	}
 
diff --git a/drivers/net/irda/smsc-ircc2.c b/drivers/net/irda/smsc-ircc2.c
index 1c1677cfea29..8800e1fe4129 100644
--- a/drivers/net/irda/smsc-ircc2.c
+++ b/drivers/net/irda/smsc-ircc2.c
@@ -1582,7 +1582,7 @@ static irqreturn_t smsc_ircc_interrupt_sir(struct net_device *dev)
 	int iobase;
 	int iir, lsr;
 
-	/* Already locked comming here in smsc_ircc_interrupt() */
+	/* Already locked coming here in smsc_ircc_interrupt() */
 	/*spin_lock(&self->lock);*/
 
 	iobase = self->io.sir_base;
diff --git a/drivers/net/irda/via-ircc.c b/drivers/net/irda/via-ircc.c
index 67c0ad42d818..f504b262ba36 100644
--- a/drivers/net/irda/via-ircc.c
+++ b/drivers/net/irda/via-ircc.c
@@ -29,7 +29,7 @@ F02 Oct/28/02: Add SB device ID for 3147 and 3177.
 
 2004-02-16: <sda@bdit.de>
 - Removed unneeded 'legacy' pci stuff.
-- Make sure SIR mode is set (hw_init()) before calling mode-dependant stuff.
+- Make sure SIR mode is set (hw_init()) before calling mode-dependent stuff.
 - On speed change from core, don't send SIR frame with new speed. 
   Use current speed and change speeds later.
 - Make module-param dongle_id actually work.
@@ -75,15 +75,9 @@ static int dongle_id = 0;	/* default: probe */
 /* We can't guess the type of connected dongle, user *must* supply it. */
 module_param(dongle_id, int, 0);
 
-/* FIXME : we should not need this, because instances should be automatically
- * managed by the PCI layer. Especially that we seem to only be using the
- * first entry. Jean II */
-/* Max 4 instances for now */
-static struct via_ircc_cb *dev_self[] = { NULL, NULL, NULL, NULL };
-
 /* Some prototypes */
-static int via_ircc_open(int i, chipio_t * info, unsigned int id);
-static int via_ircc_close(struct via_ircc_cb *self);
+static int via_ircc_open(struct pci_dev *pdev, chipio_t * info,
+			 unsigned int id);
 static int via_ircc_dma_receive(struct via_ircc_cb *self);
 static int via_ircc_dma_receive_complete(struct via_ircc_cb *self,
 					 int iobase);
@@ -215,7 +209,7 @@ static int __devinit via_init_one (struct pci_dev *pcidev, const struct pci_devi
 			pci_write_config_byte(pcidev,0x42,(bTmp | 0xf0));
 			pci_write_config_byte(pcidev,0x5a,0xc0);
 			WriteLPCReg(0x28, 0x70 );
-			if (via_ircc_open(0, &info,0x3076) == 0)
+			if (via_ircc_open(pcidev, &info, 0x3076) == 0)
 				rc=0;
 		} else
 			rc = -ENODEV; //IR not turn on	 
@@ -254,7 +248,7 @@ static int __devinit via_init_one (struct pci_dev *pcidev, const struct pci_devi
 			info.irq=FirIRQ;
 			info.dma=FirDRQ1;
 			info.dma2=FirDRQ0;
-			if (via_ircc_open(0, &info,0x3096) == 0)
+			if (via_ircc_open(pcidev, &info, 0x3096) == 0)
 				rc=0;
 		} else
 			rc = -ENODEV; //IR not turn on !!!!!
@@ -264,48 +258,10 @@ static int __devinit via_init_one (struct pci_dev *pcidev, const struct pci_devi
 	return rc;
 }
 
-/*
- * Function via_ircc_clean ()
- *
- *    Close all configured chips
- *
- */
-static void via_ircc_clean(void)
-{
-	int i;
-
-	IRDA_DEBUG(3, "%s()\n", __func__);
-
-	for (i=0; i < ARRAY_SIZE(dev_self); i++) {
-		if (dev_self[i])
-			via_ircc_close(dev_self[i]);
-	}
-}
-
-static void __devexit via_remove_one (struct pci_dev *pdev)
-{
-	IRDA_DEBUG(3, "%s()\n", __func__);
-
-	/* FIXME : This is ugly. We should use pci_get_drvdata(pdev);
-	 * to get our driver instance and call directly via_ircc_close().
-	 * See vlsi_ir for details...
-	 * Jean II */
-	via_ircc_clean();
-
-	/* FIXME : This should be in via_ircc_close(), because here we may
-	 * theoritically disable still configured devices :-( - Jean II */
-	pci_disable_device(pdev);
-}
-
 static void __exit via_ircc_cleanup(void)
 {
 	IRDA_DEBUG(3, "%s()\n", __func__);
 
-	/* FIXME : This should be redundant, as pci_unregister_driver()
-	 * should call via_remove_one() on each device.
-	 * Jean II */
-	via_ircc_clean();
-
 	/* Cleanup all instances of the driver */
 	pci_unregister_driver (&via_driver); 
 }
@@ -324,12 +280,13 @@ static const struct net_device_ops via_ircc_fir_ops = {
 };
 
 /*
- * Function via_ircc_open (iobase, irq)
+ * Function via_ircc_open(pdev, iobase, irq)
  *
  *    Open driver instance
  *
  */
-static __devinit int via_ircc_open(int i, chipio_t * info, unsigned int id)
+static __devinit int via_ircc_open(struct pci_dev *pdev, chipio_t * info,
+				   unsigned int id)
 {
 	struct net_device *dev;
 	struct via_ircc_cb *self;
@@ -337,9 +294,6 @@ static __devinit int via_ircc_open(int i, chipio_t * info, unsigned int id)
 
 	IRDA_DEBUG(3, "%s()\n", __func__);
 
-	if (i >= ARRAY_SIZE(dev_self))
-		return -ENOMEM;
-
 	/* Allocate new instance of the driver */
 	dev = alloc_irdadev(sizeof(struct via_ircc_cb));
 	if (dev == NULL) 
@@ -349,13 +303,8 @@ static __devinit int via_ircc_open(int i, chipio_t * info, unsigned int id)
 	self->netdev = dev;
 	spin_lock_init(&self->lock);
 
-	/* FIXME : We should store our driver instance in the PCI layer,
-	 * using pci_set_drvdata(), not in this array.
-	 * See vlsi_ir for details... - Jean II */
-	/* FIXME : 'i' is always 0 (see via_init_one()) :-( - Jean II */
-	/* Need to store self somewhere */
-	dev_self[i] = self;
-	self->index = i;
+	pci_set_drvdata(pdev, self);
+
 	/* Initialize Resource */
 	self->io.cfg_base = info->cfg_base;
 	self->io.fir_base = info->fir_base;
@@ -385,7 +334,7 @@ static __devinit int via_ircc_open(int i, chipio_t * info, unsigned int id)
 	self->io.dongle_id = dongle_id;
 
 	/* The only value we must override it the baudrate */
-	/* Maximum speeds and capabilities are dongle-dependant. */
+	/* Maximum speeds and capabilities are dongle-dependent. */
 	switch( self->io.dongle_id ){
 	case 0x0d:
 		self->qos.baud_rate.bits =
@@ -414,7 +363,7 @@ static __devinit int via_ircc_open(int i, chipio_t * info, unsigned int id)
 
 	/* Allocate memory if needed */
 	self->rx_buff.head =
-		dma_alloc_coherent(NULL, self->rx_buff.truesize,
+		dma_alloc_coherent(&pdev->dev, self->rx_buff.truesize,
 				   &self->rx_buff_dma, GFP_KERNEL);
 	if (self->rx_buff.head == NULL) {
 		err = -ENOMEM;
@@ -423,7 +372,7 @@ static __devinit int via_ircc_open(int i, chipio_t * info, unsigned int id)
 	memset(self->rx_buff.head, 0, self->rx_buff.truesize);
 
 	self->tx_buff.head =
-		dma_alloc_coherent(NULL, self->tx_buff.truesize,
+		dma_alloc_coherent(&pdev->dev, self->tx_buff.truesize,
 				   &self->tx_buff_dma, GFP_KERNEL);
 	if (self->tx_buff.head == NULL) {
 		err = -ENOMEM;
@@ -455,33 +404,32 @@ static __devinit int via_ircc_open(int i, chipio_t * info, unsigned int id)
 	via_hw_init(self);
 	return 0;
  err_out4:
-	dma_free_coherent(NULL, self->tx_buff.truesize,
+	dma_free_coherent(&pdev->dev, self->tx_buff.truesize,
 			  self->tx_buff.head, self->tx_buff_dma);
  err_out3:
-	dma_free_coherent(NULL, self->rx_buff.truesize,
+	dma_free_coherent(&pdev->dev, self->rx_buff.truesize,
 			  self->rx_buff.head, self->rx_buff_dma);
  err_out2:
 	release_region(self->io.fir_base, self->io.fir_ext);
  err_out1:
+	pci_set_drvdata(pdev, NULL);
 	free_netdev(dev);
-	dev_self[i] = NULL;
 	return err;
 }
 
 /*
- * Function via_ircc_close (self)
+ * Function via_remove_one(pdev)
  *
  *    Close driver instance
  *
  */
-static int via_ircc_close(struct via_ircc_cb *self)
+static void __devexit via_remove_one(struct pci_dev *pdev)
 {
+	struct via_ircc_cb *self = pci_get_drvdata(pdev);
 	int iobase;
 
 	IRDA_DEBUG(3, "%s()\n", __func__);
 
-	IRDA_ASSERT(self != NULL, return -1;);
-
 	iobase = self->io.fir_base;
 
 	ResetChip(iobase, 5);	//hardware reset.
@@ -493,16 +441,16 @@ static int via_ircc_close(struct via_ircc_cb *self)
 		   __func__, self->io.fir_base);
 	release_region(self->io.fir_base, self->io.fir_ext);
 	if (self->tx_buff.head)
-		dma_free_coherent(NULL, self->tx_buff.truesize,
+		dma_free_coherent(&pdev->dev, self->tx_buff.truesize,
 				  self->tx_buff.head, self->tx_buff_dma);
 	if (self->rx_buff.head)
-		dma_free_coherent(NULL, self->rx_buff.truesize,
+		dma_free_coherent(&pdev->dev, self->rx_buff.truesize,
 				  self->rx_buff.head, self->rx_buff_dma);
-	dev_self[self->index] = NULL;
+	pci_set_drvdata(pdev, NULL);
 
 	free_netdev(self->netdev);
 
-	return 0;
+	pci_disable_device(pdev);
 }
 
 /*
diff --git a/drivers/net/irda/vlsi_ir.h b/drivers/net/irda/vlsi_ir.h
index d66fab854bf1..a076eb125349 100644
--- a/drivers/net/irda/vlsi_ir.h
+++ b/drivers/net/irda/vlsi_ir.h
@@ -209,7 +209,7 @@ enum vlsi_pio_irintr {
 	IRINTR_ACTEN	= 0x80,	/* activity interrupt enable */
 	IRINTR_ACTIVITY	= 0x40,	/* activity monitor (traffic detected) */
 	IRINTR_RPKTEN	= 0x20,	/* receive packet interrupt enable*/
-	IRINTR_RPKTINT	= 0x10,	/* rx-packet transfered from fifo to memory finished */
+	IRINTR_RPKTINT	= 0x10,	/* rx-packet transferred from fifo to memory finished */
 	IRINTR_TPKTEN	= 0x08,	/* transmit packet interrupt enable */
 	IRINTR_TPKTINT	= 0x04,	/* last bit of tx-packet+crc shifted to ir-pulser */
 	IRINTR_OE_EN	= 0x02,	/* UART rx fifo overrun error interrupt enable */
@@ -739,7 +739,7 @@ typedef struct vlsi_irda_dev {
 /* the remapped error flags we use for returning from frame
  * post-processing in vlsi_process_tx/rx() after it was completed
  * by the hardware. These functions either return the >=0 number
- * of transfered bytes in case of success or the negative (-)
+ * of transferred bytes in case of success or the negative (-)
  * of the or'ed error flags.
  */
 
diff --git a/drivers/net/ixgbe/ixgbe_dcb.c b/drivers/net/ixgbe/ixgbe_dcb.c
index 41c529fac0ab..686a17aadef3 100644
--- a/drivers/net/ixgbe/ixgbe_dcb.c
+++ b/drivers/net/ixgbe/ixgbe_dcb.c
@@ -36,7 +36,7 @@
 /**
  * ixgbe_ieee_credits - This calculates the ieee traffic class
  * credits from the configured bandwidth percentages. Credits
- * are the smallest unit programable into the underlying
+ * are the smallest unit programmable into the underlying
  * hardware. The IEEE 802.1Qaz specification do not use bandwidth
  * groups so this is much simplified from the CEE case.
  */
diff --git a/drivers/net/ixgbe/ixgbe_dcb_nl.c b/drivers/net/ixgbe/ixgbe_dcb_nl.c
index fec4c724c37a..327c8614198c 100644
--- a/drivers/net/ixgbe/ixgbe_dcb_nl.c
+++ b/drivers/net/ixgbe/ixgbe_dcb_nl.c
@@ -360,7 +360,7 @@ static u8 ixgbe_dcbnl_set_all(struct net_device *netdev)
 		return DCB_NO_HW_CHG;
 
 	/*
-	 * Only take down the adapter if an app change occured. FCoE
+	 * Only take down the adapter if an app change occurred. FCoE
 	 * may shuffle tx rings in this case and this can not be done
 	 * without a reset currently.
 	 */
@@ -599,7 +599,7 @@ static u8 ixgbe_dcbnl_setapp(struct net_device *netdev,
 				break;
 
 			/* The FCoE application priority may be changed multiple
-			 * times in quick sucession with switches that build up
+			 * times in quick succession with switches that build up
 			 * TLVs. To avoid creating uneeded device resets this
 			 * checks the actual HW configuration and clears
 			 * BIT_APP_UPCHG if a HW configuration change is not
diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c
index f17e4a7ee731..6f8adc7f5d7c 100644
--- a/drivers/net/ixgbe/ixgbe_main.c
+++ b/drivers/net/ixgbe/ixgbe_main.c
@@ -644,7 +644,7 @@ void ixgbe_unmap_and_free_tx_resource(struct ixgbe_ring *tx_ring,
  * @adapter: driver private struct
  * @index: reg idx of queue to query (0-127)
  *
- * Helper function to determine the traffic index for a paticular
+ * Helper function to determine the traffic index for a particular
  * register index.
  *
  * Returns : a tc index for use in range 0-7, or 0-3
@@ -3556,7 +3556,7 @@ void ixgbe_set_rx_mode(struct net_device *netdev)
 		} else {
 			/*
 			 * Write addresses to the MTA, if the attempt fails
-			 * then we should just turn on promiscous mode so
+			 * then we should just turn on promiscuous mode so
 			 * that we can at least receive multicast traffic
 			 */
 			hw->mac.ops.update_mc_addr_list(hw, netdev);
@@ -3567,7 +3567,7 @@ void ixgbe_set_rx_mode(struct net_device *netdev)
 		/*
 		 * Write addresses to available RAR registers, if there is not
 		 * sufficient space to store all the addresses then enable
-		 * unicast promiscous mode
+		 * unicast promiscuous mode
 		 */
 		count = ixgbe_write_uc_addr_list(netdev);
 		if (count < 0) {
@@ -4443,7 +4443,7 @@ static inline bool ixgbe_set_sriov_queues(struct ixgbe_adapter *adapter)
 }
 
 /*
- * ixgbe_set_num_queues: Allocate queues for device, feature dependant
+ * ixgbe_set_num_queues: Allocate queues for device, feature dependent
  * @adapter: board private structure to initialize
  *
  * This is the top level queue allocation routine.  The order here is very
diff --git a/drivers/net/ixgbe/ixgbe_phy.c b/drivers/net/ixgbe/ixgbe_phy.c
index f72f705f6183..df5b8aa4795d 100644
--- a/drivers/net/ixgbe/ixgbe_phy.c
+++ b/drivers/net/ixgbe/ixgbe_phy.c
@@ -1694,7 +1694,7 @@ static void ixgbe_i2c_bus_clear(struct ixgbe_hw *hw)
 }
 
 /**
- *  ixgbe_tn_check_overtemp - Checks if an overtemp occured.
+ *  ixgbe_tn_check_overtemp - Checks if an overtemp occurred.
  *  @hw: pointer to hardware structure
  *
  *  Checks if the LASI temp alarm status was triggered due to overtemp
diff --git a/drivers/net/ixgbe/ixgbe_x540.c b/drivers/net/ixgbe/ixgbe_x540.c
index f47e93fe32be..d9323c08f5c7 100644
--- a/drivers/net/ixgbe/ixgbe_x540.c
+++ b/drivers/net/ixgbe/ixgbe_x540.c
@@ -573,7 +573,7 @@ static s32 ixgbe_acquire_swfw_sync_X540(struct ixgbe_hw *hw, u16 mask)
  * @hw: pointer to hardware structure
  * @mask: Mask to specify which semaphore to release
  *
- * Releases the SWFW semaphore throught the SW_FW_SYNC register
+ * Releases the SWFW semaphore through the SW_FW_SYNC register
  * for the specified function (CSR, PHY0, PHY1, EVM, Flash)
  **/
 static void ixgbe_release_swfw_sync_X540(struct ixgbe_hw *hw, u16 mask)
diff --git a/drivers/net/ixgbevf/ixgbevf_main.c b/drivers/net/ixgbevf/ixgbevf_main.c
index 054ab05b7c6a..05fa7c85deed 100644
--- a/drivers/net/ixgbevf/ixgbevf_main.c
+++ b/drivers/net/ixgbevf/ixgbevf_main.c
@@ -1925,7 +1925,7 @@ static void ixgbevf_acquire_msix_vectors(struct ixgbevf_adapter *adapter,
 }
 
 /*
- * ixgbevf_set_num_queues: Allocate queues for device, feature dependant
+ * ixgbevf_set_num_queues: Allocate queues for device, feature dependent
  * @adapter: board private structure to initialize
  *
  * This is the top level queue allocation routine.  The order here is very
diff --git a/drivers/net/jme.c b/drivers/net/jme.c
index f690474f4409..994c80939c7a 100644
--- a/drivers/net/jme.c
+++ b/drivers/net/jme.c
@@ -273,7 +273,7 @@ jme_clear_pm(struct jme_adapter *jme)
 {
 	jwrite32(jme, JME_PMCS, 0xFFFF0000 | jme->reg_pmcs);
 	pci_set_power_state(jme->pdev, PCI_D0);
-	pci_enable_wake(jme->pdev, PCI_D0, false);
+	device_set_wakeup_enable(&jme->pdev->dev, false);
 }
 
 static int
@@ -2538,6 +2538,8 @@ jme_set_wol(struct net_device *netdev,
 
 	jwrite32(jme, JME_PMCS, jme->reg_pmcs);
 
+	device_set_wakeup_enable(&jme->pdev->dev, jme->reg_pmcs);
+
 	return 0;
 }
 
@@ -3172,9 +3174,9 @@ jme_shutdown(struct pci_dev *pdev)
 }
 
 #ifdef CONFIG_PM
-static int
-jme_suspend(struct pci_dev *pdev, pm_message_t state)
+static int jme_suspend(struct device *dev)
 {
+	struct pci_dev *pdev = to_pci_dev(dev);
 	struct net_device *netdev = pci_get_drvdata(pdev);
 	struct jme_adapter *jme = netdev_priv(netdev);
 
@@ -3206,22 +3208,18 @@ jme_suspend(struct pci_dev *pdev, pm_message_t state)
 	tasklet_hi_enable(&jme->rxclean_task);
 	tasklet_hi_enable(&jme->rxempty_task);
 
-	pci_save_state(pdev);
 	jme_powersave_phy(jme);
-	pci_enable_wake(jme->pdev, PCI_D3hot, true);
-	pci_set_power_state(pdev, PCI_D3hot);
 
 	return 0;
 }
 
-static int
-jme_resume(struct pci_dev *pdev)
+static int jme_resume(struct device *dev)
 {
+	struct pci_dev *pdev = to_pci_dev(dev);
 	struct net_device *netdev = pci_get_drvdata(pdev);
 	struct jme_adapter *jme = netdev_priv(netdev);
 
-	jme_clear_pm(jme);
-	pci_restore_state(pdev);
+	jwrite32(jme, JME_PMCS, 0xFFFF0000 | jme->reg_pmcs);
 
 	jme_phy_on(jme);
 	if (test_bit(JME_FLAG_SSET, &jme->flags))
@@ -3238,6 +3236,13 @@ jme_resume(struct pci_dev *pdev)
 
 	return 0;
 }
+
+static SIMPLE_DEV_PM_OPS(jme_pm_ops, jme_suspend, jme_resume);
+#define JME_PM_OPS (&jme_pm_ops)
+
+#else
+
+#define JME_PM_OPS NULL
 #endif
 
 static DEFINE_PCI_DEVICE_TABLE(jme_pci_tbl) = {
@@ -3251,11 +3256,8 @@ static struct pci_driver jme_driver = {
 	.id_table       = jme_pci_tbl,
 	.probe          = jme_init_one,
 	.remove         = __devexit_p(jme_remove_one),
-#ifdef CONFIG_PM
-	.suspend        = jme_suspend,
-	.resume         = jme_resume,
-#endif /* CONFIG_PM */
 	.shutdown       = jme_shutdown,
+	.driver.pm	= JME_PM_OPS,
 };
 
 static int __init
diff --git a/drivers/net/ks8842.c b/drivers/net/ks8842.c
index efd44afeae83..f0d8346d0fa5 100644
--- a/drivers/net/ks8842.c
+++ b/drivers/net/ks8842.c
@@ -321,7 +321,7 @@ static void ks8842_reset_hw(struct ks8842_adapter *adapter)
 	/* RX 2 kb high watermark */
 	ks8842_write16(adapter, 0, 0x1000, REG_QRFCR);
 
-	/* aggresive back off in half duplex */
+	/* aggressive back off in half duplex */
 	ks8842_enable_bits(adapter, 32, 1 << 8, REG_SGCR1);
 
 	/* enable no excessive collison drop */
diff --git a/drivers/net/ks8851.c b/drivers/net/ks8851.c
index 0fa4a9887ba2..bcd9ba68c9f2 100644
--- a/drivers/net/ks8851.c
+++ b/drivers/net/ks8851.c
@@ -141,7 +141,7 @@ static int msg_enable;
  *
  * All these calls issue SPI transactions to access the chip's registers. They
  * all require that the necessary lock is held to prevent accesses when the
- * chip is busy transfering packet data (RX/TX FIFO accesses).
+ * chip is busy transferring packet data (RX/TX FIFO accesses).
  */
 
 /**
@@ -483,7 +483,7 @@ static void ks8851_rx_pkts(struct ks8851_net *ks)
 	 *
 	 * This form of operation would require us to hold the SPI bus'
 	 * chipselect low during the entie transaction to avoid any
-	 * reset to the data stream comming from the chip.
+	 * reset to the data stream coming from the chip.
 	 */
 
 	for (; rxfc != 0; rxfc--) {
@@ -634,7 +634,7 @@ static void ks8851_irq_work(struct work_struct *work)
 
 /**
  * calc_txlen - calculate size of message to send packet
- * @len: Lenght of data
+ * @len: Length of data
  *
  * Returns the size of the TXFIFO message needed to send
  * this packet.
@@ -1472,7 +1472,7 @@ static int ks8851_phy_reg(int reg)
  * @reg: The register to read.
  *
  * This call reads data from the PHY register specified in @reg. Since the
- * device does not support all the MII registers, the non-existant values
+ * device does not support all the MII registers, the non-existent values
  * are always returned as zero.
  *
  * We return zero for unsupported registers as the MII code does not check
diff --git a/drivers/net/ks8851_mll.c b/drivers/net/ks8851_mll.c
index 2e2c69b24062..61631cace913 100644
--- a/drivers/net/ks8851_mll.c
+++ b/drivers/net/ks8851_mll.c
@@ -470,7 +470,7 @@ static int msg_enable;
  *
  * All these calls issue transactions to access the chip's registers. They
  * all require that the necessary lock is held to prevent accesses when the
- * chip is busy transfering packet data (RX/TX FIFO accesses).
+ * chip is busy transferring packet data (RX/TX FIFO accesses).
  */
 
 /**
@@ -1364,7 +1364,7 @@ static int ks_phy_reg(int reg)
  * @reg: The register to read.
  *
  * This call reads data from the PHY register specified in @reg. Since the
- * device does not support all the MII registers, the non-existant values
+ * device does not support all the MII registers, the non-existent values
  * are always returned as zero.
  *
  * We return zero for unsupported registers as the MII code does not check
diff --git a/drivers/net/ksz884x.c b/drivers/net/ksz884x.c
index 540a8dcbcc46..7f7d5708a658 100644
--- a/drivers/net/ksz884x.c
+++ b/drivers/net/ksz884x.c
@@ -4898,7 +4898,7 @@ static netdev_tx_t netdev_tx(struct sk_buff *skb, struct net_device *dev)
 				goto unlock;
 			}
 			skb_copy_and_csum_dev(org_skb, skb->data);
-			org_skb->ip_summed = 0;
+			org_skb->ip_summed = CHECKSUM_NONE;
 			skb->len = org_skb->len;
 			copy_old_skb(org_skb, skb);
 		}
diff --git a/drivers/net/lib8390.c b/drivers/net/lib8390.c
index da74db4a03d4..17b75e5f1b0a 100644
--- a/drivers/net/lib8390.c
+++ b/drivers/net/lib8390.c
@@ -35,7 +35,7 @@
   Alexey Kuznetsov	: use the 8390's six bit hash multicast filter.
   Paul Gortmaker	: tweak ANK's above multicast changes a bit.
   Paul Gortmaker	: update packet statistics for v2.1.x
-  Alan Cox		: support arbitary stupid port mappings on the
+  Alan Cox		: support arbitrary stupid port mappings on the
   			  68K Macintosh. Support >16bit I/O spaces
   Paul Gortmaker	: add kmod support for auto-loading of the 8390
 			  module by all drivers that require it.
@@ -121,7 +121,7 @@ static void __NS8390_init(struct net_device *dev, int startp);
 /*
  *	SMP and the 8390 setup.
  *
- *	The 8390 isnt exactly designed to be multithreaded on RX/TX. There is
+ *	The 8390 isn't exactly designed to be multithreaded on RX/TX. There is
  *	a page register that controls bank and packet buffer access. We guard
  *	this with ei_local->page_lock. Nobody should assume or set the page other
  *	than zero when the lock is not held. Lock holders must restore page 0
diff --git a/drivers/net/lp486e.c b/drivers/net/lp486e.c
index 3698824744cb..385a95311cd2 100644
--- a/drivers/net/lp486e.c
+++ b/drivers/net/lp486e.c
@@ -27,7 +27,7 @@
 
 	Credits:
 	Thanks to Murphy Software BV for letting me write this in their time.
-	Well, actually, I get payed doing this...
+	Well, actually, I get paid doing this...
 	(Also: see http://www.murphy.nl for murphy, and my homepage ~ard for
 	more information on the Professional Workstation)
 
diff --git a/drivers/net/meth.h b/drivers/net/meth.h
index a78dc1ca8c29..5b145c6bad60 100644
--- a/drivers/net/meth.h
+++ b/drivers/net/meth.h
@@ -144,7 +144,7 @@ typedef struct rx_packet {
 				       /* Bits 22 through 28 are used to determine IPGR2 */
 
 #define METH_REV_SHIFT 29       /* Bits 29 through 31 are used to determine the revision */
-				       /* 000: Inital revision */
+				       /* 000: Initial revision */
 				       /* 001: First revision, Improved TX concatenation */
 
 
@@ -193,7 +193,7 @@ typedef struct rx_packet {
 					      	/* 1: A TX message had the INT request bit set, the packet has been sent. */
 #define METH_INT_TX_LINK_FAIL	BIT(2)	/* 0: No interrupt pending, 1: PHY has reported a link failure */
 #define METH_INT_MEM_ERROR	BIT(3)	/* 0: No interrupt pending */
-						/* 1: A memory error occurred durring DMA, DMA stopped, Fatal */
+						/* 1: A memory error occurred during DMA, DMA stopped, Fatal */
 #define METH_INT_TX_ABORT		BIT(4)	/* 0: No interrupt pending, 1: The TX aborted operation, DMA stopped, FATAL */
 #define METH_INT_RX_THRESHOLD	BIT(5)	/* 0: No interrupt pending, 1: Selected receive threshold condition Valid */
 #define METH_INT_RX_UNDERFLOW	BIT(6)	/* 0: No interrupt pending, 1: FIFO was empty, packet could not be queued */
diff --git a/drivers/net/mlx4/alloc.c b/drivers/net/mlx4/alloc.c
index 3a4277f6fac4..116cae334dad 100644
--- a/drivers/net/mlx4/alloc.c
+++ b/drivers/net/mlx4/alloc.c
@@ -62,6 +62,9 @@ u32 mlx4_bitmap_alloc(struct mlx4_bitmap *bitmap)
 	} else
 		obj = -1;
 
+	if (obj != -1)
+		--bitmap->avail;
+
 	spin_unlock(&bitmap->lock);
 
 	return obj;
@@ -101,11 +104,19 @@ u32 mlx4_bitmap_alloc_range(struct mlx4_bitmap *bitmap, int cnt, int align)
 	} else
 		obj = -1;
 
+	if (obj != -1)
+		bitmap->avail -= cnt;
+
 	spin_unlock(&bitmap->lock);
 
 	return obj;
 }
 
+u32 mlx4_bitmap_avail(struct mlx4_bitmap *bitmap)
+{
+	return bitmap->avail;
+}
+
 void mlx4_bitmap_free_range(struct mlx4_bitmap *bitmap, u32 obj, int cnt)
 {
 	obj &= bitmap->max + bitmap->reserved_top - 1;
@@ -115,6 +126,7 @@ void mlx4_bitmap_free_range(struct mlx4_bitmap *bitmap, u32 obj, int cnt)
 	bitmap->last = min(bitmap->last, obj);
 	bitmap->top = (bitmap->top + bitmap->max + bitmap->reserved_top)
 			& bitmap->mask;
+	bitmap->avail += cnt;
 	spin_unlock(&bitmap->lock);
 }
 
@@ -130,6 +142,7 @@ int mlx4_bitmap_init(struct mlx4_bitmap *bitmap, u32 num, u32 mask,
 	bitmap->max  = num - reserved_top;
 	bitmap->mask = mask;
 	bitmap->reserved_top = reserved_top;
+	bitmap->avail = num - reserved_top - reserved_bot;
 	spin_lock_init(&bitmap->lock);
 	bitmap->table = kzalloc(BITS_TO_LONGS(bitmap->max) *
 				sizeof (long), GFP_KERNEL);
diff --git a/drivers/net/mlx4/cq.c b/drivers/net/mlx4/cq.c
index 7cd34e9c7c7e..bd8ef9f2fa71 100644
--- a/drivers/net/mlx4/cq.c
+++ b/drivers/net/mlx4/cq.c
@@ -198,7 +198,7 @@ int mlx4_cq_alloc(struct mlx4_dev *dev, int nent, struct mlx4_mtt *mtt,
 	u64 mtt_addr;
 	int err;
 
-	if (vector >= dev->caps.num_comp_vectors)
+	if (vector > dev->caps.num_comp_vectors + dev->caps.comp_pool)
 		return -EINVAL;
 
 	cq->vector = vector;
diff --git a/drivers/net/mlx4/en_cq.c b/drivers/net/mlx4/en_cq.c
index 21786ad4455e..ec4b6d047fe0 100644
--- a/drivers/net/mlx4/en_cq.c
+++ b/drivers/net/mlx4/en_cq.c
@@ -51,13 +51,10 @@ int mlx4_en_create_cq(struct mlx4_en_priv *priv,
 	int err;
 
 	cq->size = entries;
-	if (mode == RX) {
+	if (mode == RX)
 		cq->buf_size = cq->size * sizeof(struct mlx4_cqe);
-		cq->vector   = ring % mdev->dev->caps.num_comp_vectors;
-	} else {
+	else
 		cq->buf_size = sizeof(struct mlx4_cqe);
-		cq->vector   = 0;
-	}
 
 	cq->ring = ring;
 	cq->is_tx = mode;
@@ -80,7 +77,8 @@ int mlx4_en_create_cq(struct mlx4_en_priv *priv,
 int mlx4_en_activate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq)
 {
 	struct mlx4_en_dev *mdev = priv->mdev;
-	int err;
+	int err = 0;
+	char name[25];
 
 	cq->dev = mdev->pndev[priv->port];
 	cq->mcq.set_ci_db  = cq->wqres.db.db;
@@ -89,6 +87,29 @@ int mlx4_en_activate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq)
 	*cq->mcq.arm_db    = 0;
 	memset(cq->buf, 0, cq->buf_size);
 
+	if (cq->is_tx == RX) {
+		if (mdev->dev->caps.comp_pool) {
+			if (!cq->vector) {
+				sprintf(name , "%s-rx-%d", priv->dev->name, cq->ring);
+				if (mlx4_assign_eq(mdev->dev, name, &cq->vector)) {
+					cq->vector = (cq->ring + 1 + priv->port) %
+						mdev->dev->caps.num_comp_vectors;
+					mlx4_warn(mdev, "Failed Assigning an EQ to "
+						  "%s_rx-%d ,Falling back to legacy EQ's\n",
+						  priv->dev->name, cq->ring);
+				}
+			}
+		} else {
+			cq->vector = (cq->ring + 1 + priv->port) %
+				mdev->dev->caps.num_comp_vectors;
+		}
+	} else {
+		if (!cq->vector || !mdev->dev->caps.comp_pool) {
+			/*Fallback to legacy pool in case of error*/
+			cq->vector   = 0;
+		}
+	}
+
 	if (!cq->is_tx)
 		cq->size = priv->rx_ring[cq->ring].actual_size;
 
@@ -112,12 +133,15 @@ int mlx4_en_activate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq)
 	return 0;
 }
 
-void mlx4_en_destroy_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq)
+void mlx4_en_destroy_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq,
+			bool reserve_vectors)
 {
 	struct mlx4_en_dev *mdev = priv->mdev;
 
 	mlx4_en_unmap_buffer(&cq->wqres.buf);
 	mlx4_free_hwq_res(mdev->dev, &cq->wqres, cq->buf_size);
+	if (priv->mdev->dev->caps.comp_pool && cq->vector && !reserve_vectors)
+		mlx4_release_eq(priv->mdev->dev, cq->vector);
 	cq->buf_size = 0;
 	cq->buf = NULL;
 }
diff --git a/drivers/net/mlx4/en_ethtool.c b/drivers/net/mlx4/en_ethtool.c
index 056152b3ff58..d54b7abf0225 100644
--- a/drivers/net/mlx4/en_ethtool.c
+++ b/drivers/net/mlx4/en_ethtool.c
@@ -45,7 +45,7 @@ mlx4_en_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *drvinfo)
 	struct mlx4_en_priv *priv = netdev_priv(dev);
 	struct mlx4_en_dev *mdev = priv->mdev;
 
-	sprintf(drvinfo->driver, DRV_NAME " (%s)", mdev->dev->board_id);
+	strncpy(drvinfo->driver, DRV_NAME, 32);
 	strncpy(drvinfo->version, DRV_VERSION " (" DRV_RELDATE ")", 32);
 	sprintf(drvinfo->fw_version, "%d.%d.%d",
 		(u16) (mdev->dev->caps.fw_ver >> 32),
@@ -131,8 +131,65 @@ static void mlx4_en_set_msglevel(struct net_device *dev, u32 val)
 static void mlx4_en_get_wol(struct net_device *netdev,
 			    struct ethtool_wolinfo *wol)
 {
-	wol->supported = 0;
-	wol->wolopts = 0;
+	struct mlx4_en_priv *priv = netdev_priv(netdev);
+	int err = 0;
+	u64 config = 0;
+
+	if (!priv->mdev->dev->caps.wol) {
+		wol->supported = 0;
+		wol->wolopts = 0;
+		return;
+	}
+
+	err = mlx4_wol_read(priv->mdev->dev, &config, priv->port);
+	if (err) {
+		en_err(priv, "Failed to get WoL information\n");
+		return;
+	}
+
+	if (config & MLX4_EN_WOL_MAGIC)
+		wol->supported = WAKE_MAGIC;
+	else
+		wol->supported = 0;
+
+	if (config & MLX4_EN_WOL_ENABLED)
+		wol->wolopts = WAKE_MAGIC;
+	else
+		wol->wolopts = 0;
+}
+
+static int mlx4_en_set_wol(struct net_device *netdev,
+			    struct ethtool_wolinfo *wol)
+{
+	struct mlx4_en_priv *priv = netdev_priv(netdev);
+	u64 config = 0;
+	int err = 0;
+
+	if (!priv->mdev->dev->caps.wol)
+		return -EOPNOTSUPP;
+
+	if (wol->supported & ~WAKE_MAGIC)
+		return -EINVAL;
+
+	err = mlx4_wol_read(priv->mdev->dev, &config, priv->port);
+	if (err) {
+		en_err(priv, "Failed to get WoL info, unable to modify\n");
+		return err;
+	}
+
+	if (wol->wolopts & WAKE_MAGIC) {
+		config |= MLX4_EN_WOL_DO_MODIFY | MLX4_EN_WOL_ENABLED |
+				MLX4_EN_WOL_MAGIC;
+	} else {
+		config &= ~(MLX4_EN_WOL_ENABLED | MLX4_EN_WOL_MAGIC);
+		config |= MLX4_EN_WOL_DO_MODIFY;
+	}
+
+	err = mlx4_wol_write(priv->mdev->dev, config, priv->port);
+	if (err)
+		en_err(priv, "Failed to set WoL information\n");
+
+	return err;
 }
 
 static int mlx4_en_get_sset_count(struct net_device *dev, int sset)
@@ -388,7 +445,7 @@ static int mlx4_en_set_ringparam(struct net_device *dev,
 		mlx4_en_stop_port(dev);
 	}
 
-	mlx4_en_free_resources(priv);
+	mlx4_en_free_resources(priv, true);
 
 	priv->prof->tx_ring_size = tx_size;
 	priv->prof->rx_ring_size = rx_size;
@@ -442,6 +499,7 @@ const struct ethtool_ops mlx4_en_ethtool_ops = {
 	.get_ethtool_stats = mlx4_en_get_ethtool_stats,
 	.self_test = mlx4_en_self_test,
 	.get_wol = mlx4_en_get_wol,
+	.set_wol = mlx4_en_set_wol,
 	.get_msglevel = mlx4_en_get_msglevel,
 	.set_msglevel = mlx4_en_set_msglevel,
 	.get_coalesce = mlx4_en_get_coalesce,
diff --git a/drivers/net/mlx4/en_main.c b/drivers/net/mlx4/en_main.c
index 1ff6ca6466ed..9276b1b25586 100644
--- a/drivers/net/mlx4/en_main.c
+++ b/drivers/net/mlx4/en_main.c
@@ -236,21 +236,23 @@ static void *mlx4_en_add(struct mlx4_dev *dev)
 		goto err_mr;
 	}
 
-	/* Configure wich ports to start according to module parameters */
+	/* Configure which ports to start according to module parameters */
 	mdev->port_cnt = 0;
 	mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_ETH)
 		mdev->port_cnt++;
 
-	/* If we did not receive an explicit number of Rx rings, default to
-	 * the number of completion vectors populated by the mlx4_core */
 	mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_ETH) {
-		mlx4_info(mdev, "Using %d tx rings for port:%d\n",
-			  mdev->profile.prof[i].tx_ring_num, i);
-		mdev->profile.prof[i].rx_ring_num = min_t(int,
-			roundup_pow_of_two(dev->caps.num_comp_vectors),
-			MAX_RX_RINGS);
-		mlx4_info(mdev, "Defaulting to %d rx rings for port:%d\n",
-			  mdev->profile.prof[i].rx_ring_num, i);
+		if (!dev->caps.comp_pool) {
+			mdev->profile.prof[i].rx_ring_num =
+				rounddown_pow_of_two(max_t(int, MIN_RX_RINGS,
+							   min_t(int,
+								 dev->caps.num_comp_vectors,
+								 MAX_RX_RINGS)));
+		} else {
+			mdev->profile.prof[i].rx_ring_num = rounddown_pow_of_two(
+				min_t(int, dev->caps.comp_pool/
+				      dev->caps.num_ports - 1 , MAX_MSIX_P_PORT - 1));
+		}
 	}
 
 	/* Create our own workqueue for reset/multicast tasks
@@ -294,7 +296,7 @@ static struct mlx4_interface mlx4_en_interface = {
 	.remove		= mlx4_en_remove,
 	.event		= mlx4_en_event,
 	.get_dev	= mlx4_en_get_netdev,
-	.protocol	= MLX4_PROTOCOL_EN,
+	.protocol	= MLX4_PROT_ETH,
 };
 
 static int __init mlx4_en_init(void)
diff --git a/drivers/net/mlx4/en_netdev.c b/drivers/net/mlx4/en_netdev.c
index 897f576b8b17..77063f91c564 100644
--- a/drivers/net/mlx4/en_netdev.c
+++ b/drivers/net/mlx4/en_netdev.c
@@ -156,9 +156,8 @@ static void mlx4_en_do_set_mac(struct work_struct *work)
 	mutex_lock(&mdev->state_lock);
 	if (priv->port_up) {
 		/* Remove old MAC and insert the new one */
-		mlx4_unregister_mac(mdev->dev, priv->port, priv->mac_index);
-		err = mlx4_register_mac(mdev->dev, priv->port,
-					priv->mac, &priv->mac_index);
+		err = mlx4_replace_mac(mdev->dev, priv->port,
+				       priv->base_qpn, priv->mac, 0);
 		if (err)
 			en_err(priv, "Failed changing HW MAC address\n");
 	} else
@@ -214,6 +213,7 @@ static void mlx4_en_do_set_multicast(struct work_struct *work)
 	struct mlx4_en_dev *mdev = priv->mdev;
 	struct net_device *dev = priv->dev;
 	u64 mcast_addr = 0;
+	u8 mc_list[16] = {0};
 	int err;
 
 	mutex_lock(&mdev->state_lock);
@@ -239,11 +239,15 @@ static void mlx4_en_do_set_multicast(struct work_struct *work)
 			priv->flags |= MLX4_EN_FLAG_PROMISC;
 
 			/* Enable promiscouos mode */
-			err = mlx4_SET_PORT_qpn_calc(mdev->dev, priv->port,
-						     priv->base_qpn, 1);
+			if (!mdev->dev->caps.vep_uc_steering)
+				err = mlx4_SET_PORT_qpn_calc(mdev->dev, priv->port,
+							     priv->base_qpn, 1);
+			else
+				err = mlx4_unicast_promisc_add(mdev->dev, priv->base_qpn,
+							       priv->port);
 			if (err)
 				en_err(priv, "Failed enabling "
-					     "promiscous mode\n");
+					     "promiscuous mode\n");
 
 			/* Disable port multicast filter (unconditionally) */
 			err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0,
@@ -252,16 +256,27 @@ static void mlx4_en_do_set_multicast(struct work_struct *work)
 				en_err(priv, "Failed disabling "
 					     "multicast filter\n");
 
-			/* Disable port VLAN filter */
-			err = mlx4_SET_VLAN_FLTR(mdev->dev, priv->port, NULL);
-			if (err)
-				en_err(priv, "Failed disabling VLAN filter\n");
+			/* Add the default qp number as multicast promisc */
+			if (!(priv->flags & MLX4_EN_FLAG_MC_PROMISC)) {
+				err = mlx4_multicast_promisc_add(mdev->dev, priv->base_qpn,
+								 priv->port);
+				if (err)
+					en_err(priv, "Failed entering multicast promisc mode\n");
+				priv->flags |= MLX4_EN_FLAG_MC_PROMISC;
+			}
+
+			if (priv->vlgrp) {
+				/* Disable port VLAN filter */
+				err = mlx4_SET_VLAN_FLTR(mdev->dev, priv->port, NULL);
+				if (err)
+					en_err(priv, "Failed disabling VLAN filter\n");
+			}
 		}
 		goto out;
 	}
 
 	/*
-	 * Not in promiscous mode
+	 * Not in promiscuous mode
 	 */
 
 	if (priv->flags & MLX4_EN_FLAG_PROMISC) {
@@ -270,10 +285,23 @@ static void mlx4_en_do_set_multicast(struct work_struct *work)
 		priv->flags &= ~MLX4_EN_FLAG_PROMISC;
 
 		/* Disable promiscouos mode */
-		err = mlx4_SET_PORT_qpn_calc(mdev->dev, priv->port,
-					     priv->base_qpn, 0);
+		if (!mdev->dev->caps.vep_uc_steering)
+			err = mlx4_SET_PORT_qpn_calc(mdev->dev, priv->port,
+						     priv->base_qpn, 0);
+		else
+			err = mlx4_unicast_promisc_remove(mdev->dev, priv->base_qpn,
+							  priv->port);
 		if (err)
-			en_err(priv, "Failed disabling promiscous mode\n");
+			en_err(priv, "Failed disabling promiscuous mode\n");
+
+		/* Disable Multicast promisc */
+		if (priv->flags & MLX4_EN_FLAG_MC_PROMISC) {
+			err = mlx4_multicast_promisc_remove(mdev->dev, priv->base_qpn,
+							    priv->port);
+			if (err)
+				en_err(priv, "Failed disabling multicast promiscuous mode\n");
+			priv->flags &= ~MLX4_EN_FLAG_MC_PROMISC;
+		}
 
 		/* Enable port VLAN filter */
 		err = mlx4_SET_VLAN_FLTR(mdev->dev, priv->port, priv->vlgrp);
@@ -287,14 +315,38 @@ static void mlx4_en_do_set_multicast(struct work_struct *work)
 					  0, MLX4_MCAST_DISABLE);
 		if (err)
 			en_err(priv, "Failed disabling multicast filter\n");
+
+		/* Add the default qp number as multicast promisc */
+		if (!(priv->flags & MLX4_EN_FLAG_MC_PROMISC)) {
+			err = mlx4_multicast_promisc_add(mdev->dev, priv->base_qpn,
+							 priv->port);
+			if (err)
+				en_err(priv, "Failed entering multicast promisc mode\n");
+			priv->flags |= MLX4_EN_FLAG_MC_PROMISC;
+		}
 	} else {
 		int i;
+		/* Disable Multicast promisc */
+		if (priv->flags & MLX4_EN_FLAG_MC_PROMISC) {
+			err = mlx4_multicast_promisc_remove(mdev->dev, priv->base_qpn,
+							    priv->port);
+			if (err)
+				en_err(priv, "Failed disabling multicast promiscuous mode\n");
+			priv->flags &= ~MLX4_EN_FLAG_MC_PROMISC;
+		}
 
 		err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0,
 					  0, MLX4_MCAST_DISABLE);
 		if (err)
 			en_err(priv, "Failed disabling multicast filter\n");
 
+		/* Detach our qp from all the multicast addresses */
+		for (i = 0; i < priv->mc_addrs_cnt; i++) {
+			memcpy(&mc_list[10], priv->mc_addrs + i * ETH_ALEN, ETH_ALEN);
+			mc_list[5] = priv->port;
+			mlx4_multicast_detach(mdev->dev, &priv->rss_map.indir_qp,
+					      mc_list, MLX4_PROT_ETH);
+		}
 		/* Flush mcast filter and init it with broadcast address */
 		mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, ETH_BCAST,
 				    1, MLX4_MCAST_CONFIG);
@@ -307,6 +359,10 @@ static void mlx4_en_do_set_multicast(struct work_struct *work)
 		for (i = 0; i < priv->mc_addrs_cnt; i++) {
 			mcast_addr =
 			      mlx4_en_mac_to_u64(priv->mc_addrs + i * ETH_ALEN);
+			memcpy(&mc_list[10], priv->mc_addrs + i * ETH_ALEN, ETH_ALEN);
+			mc_list[5] = priv->port;
+			mlx4_multicast_attach(mdev->dev, &priv->rss_map.indir_qp,
+					      mc_list, 0, MLX4_PROT_ETH);
 			mlx4_SET_MCAST_FLTR(mdev->dev, priv->port,
 					    mcast_addr, 0, MLX4_MCAST_CONFIG);
 		}
@@ -314,8 +370,6 @@ static void mlx4_en_do_set_multicast(struct work_struct *work)
 					  0, MLX4_MCAST_ENABLE);
 		if (err)
 			en_err(priv, "Failed enabling multicast filter\n");
-
-		mlx4_en_clear_list(dev);
 	}
 out:
 	mutex_unlock(&mdev->state_lock);
@@ -417,7 +471,6 @@ static void mlx4_en_auto_moderation(struct mlx4_en_priv *priv)
 	unsigned long avg_pkt_size;
 	unsigned long rx_packets;
 	unsigned long rx_bytes;
-	unsigned long rx_byte_diff;
 	unsigned long tx_packets;
 	unsigned long tx_pkt_diff;
 	unsigned long rx_pkt_diff;
@@ -441,25 +494,20 @@ static void mlx4_en_auto_moderation(struct mlx4_en_priv *priv)
 	rx_pkt_diff = ((unsigned long) (rx_packets -
 					priv->last_moder_packets));
 	packets = max(tx_pkt_diff, rx_pkt_diff);
-	rx_byte_diff = rx_bytes - priv->last_moder_bytes;
-	rx_byte_diff = rx_byte_diff ? rx_byte_diff : 1;
 	rate = packets * HZ / period;
 	avg_pkt_size = packets ? ((unsigned long) (rx_bytes -
 				 priv->last_moder_bytes)) / packets : 0;
 
 	/* Apply auto-moderation only when packet rate exceeds a rate that
 	 * it matters */
-	if (rate > MLX4_EN_RX_RATE_THRESH) {
+	if (rate > MLX4_EN_RX_RATE_THRESH && avg_pkt_size > MLX4_EN_AVG_PKT_SMALL) {
 		/* If tx and rx packet rates are not balanced, assume that
 		 * traffic is mainly BW bound and apply maximum moderation.
 		 * Otherwise, moderate according to packet rate */
-		if (2 * tx_pkt_diff > 3 * rx_pkt_diff &&
-		    rx_pkt_diff / rx_byte_diff <
-		    MLX4_EN_SMALL_PKT_SIZE)
-			moder_time = priv->rx_usecs_low;
-		else if (2 * rx_pkt_diff > 3 * tx_pkt_diff)
+		if (2 * tx_pkt_diff > 3 * rx_pkt_diff ||
+		    2 * rx_pkt_diff > 3 * tx_pkt_diff) {
 			moder_time = priv->rx_usecs_high;
-		else {
+		} else {
 			if (rate < priv->pkt_rate_low)
 				moder_time = priv->rx_usecs_low;
 			else if (rate > priv->pkt_rate_high)
@@ -471,9 +519,7 @@ static void mlx4_en_auto_moderation(struct mlx4_en_priv *priv)
 					priv->rx_usecs_low;
 		}
 	} else {
-		/* When packet rate is low, use default moderation rather than
-		 * 0 to prevent interrupt storms if traffic suddenly increases */
-		moder_time = priv->rx_usecs;
+		moder_time = priv->rx_usecs_low;
 	}
 
 	en_dbg(INTR, priv, "tx rate:%lu rx_rate:%lu\n",
@@ -565,6 +611,8 @@ int mlx4_en_start_port(struct net_device *dev)
 	int err = 0;
 	int i;
 	int j;
+	u8 mc_list[16] = {0};
+	char name[32];
 
 	if (priv->port_up) {
 		en_dbg(DRV, priv, "start port called while port already up\n");
@@ -603,16 +651,35 @@ int mlx4_en_start_port(struct net_device *dev)
 		++rx_index;
 	}
 
+	/* Set port mac number */
+	en_dbg(DRV, priv, "Setting mac for port %d\n", priv->port);
+	err = mlx4_register_mac(mdev->dev, priv->port,
+				priv->mac, &priv->base_qpn, 0);
+	if (err) {
+		en_err(priv, "Failed setting port mac\n");
+		goto cq_err;
+	}
+	mdev->mac_removed[priv->port] = 0;
+
 	err = mlx4_en_config_rss_steer(priv);
 	if (err) {
 		en_err(priv, "Failed configuring rss steering\n");
-		goto cq_err;
+		goto mac_err;
 	}
 
+	if (mdev->dev->caps.comp_pool && !priv->tx_vector) {
+		sprintf(name , "%s-tx", priv->dev->name);
+		if (mlx4_assign_eq(mdev->dev , name, &priv->tx_vector)) {
+			mlx4_warn(mdev, "Failed Assigning an EQ to "
+					"%s_tx ,Falling back to legacy "
+					"EQ's\n", priv->dev->name);
+		}
+	}
 	/* Configure tx cq's and rings */
 	for (i = 0; i < priv->tx_ring_num; i++) {
 		/* Configure cq */
 		cq = &priv->tx_cq[i];
+		cq->vector = priv->tx_vector;
 		err = mlx4_en_activate_cq(priv, cq);
 		if (err) {
 			en_err(priv, "Failed allocating Tx CQ\n");
@@ -659,24 +726,25 @@ int mlx4_en_start_port(struct net_device *dev)
 		en_err(priv, "Failed setting default qp numbers\n");
 		goto tx_err;
 	}
-	/* Set port mac number */
-	en_dbg(DRV, priv, "Setting mac for port %d\n", priv->port);
-	err = mlx4_register_mac(mdev->dev, priv->port,
-				priv->mac, &priv->mac_index);
-	if (err) {
-		en_err(priv, "Failed setting port mac\n");
-		goto tx_err;
-	}
-	mdev->mac_removed[priv->port] = 0;
 
 	/* Init port */
 	en_dbg(HW, priv, "Initializing port\n");
 	err = mlx4_INIT_PORT(mdev->dev, priv->port);
 	if (err) {
 		en_err(priv, "Failed Initializing port\n");
-		goto mac_err;
+		goto tx_err;
 	}
 
+	/* Attach rx QP to bradcast address */
+	memset(&mc_list[10], 0xff, ETH_ALEN);
+	mc_list[5] = priv->port;
+	if (mlx4_multicast_attach(mdev->dev, &priv->rss_map.indir_qp, mc_list,
+				  0, MLX4_PROT_ETH))
+		mlx4_warn(mdev, "Failed Attaching Broadcast\n");
+
+	/* Must redo promiscuous mode setup. */
+	priv->flags &= ~(MLX4_EN_FLAG_PROMISC | MLX4_EN_FLAG_MC_PROMISC);
+
 	/* Schedule multicast task to populate multicast list */
 	queue_work(mdev->workqueue, &priv->mcast_task);
 
@@ -684,8 +752,6 @@ int mlx4_en_start_port(struct net_device *dev)
 	netif_tx_start_all_queues(dev);
 	return 0;
 
-mac_err:
-	mlx4_unregister_mac(mdev->dev, priv->port, priv->mac_index);
 tx_err:
 	while (tx_index--) {
 		mlx4_en_deactivate_tx_ring(priv, &priv->tx_ring[tx_index]);
@@ -693,6 +759,8 @@ tx_err:
 	}
 
 	mlx4_en_release_rss_steer(priv);
+mac_err:
+	mlx4_unregister_mac(mdev->dev, priv->port, priv->base_qpn);
 cq_err:
 	while (rx_index--)
 		mlx4_en_deactivate_cq(priv, &priv->rx_cq[rx_index]);
@@ -708,6 +776,7 @@ void mlx4_en_stop_port(struct net_device *dev)
 	struct mlx4_en_priv *priv = netdev_priv(dev);
 	struct mlx4_en_dev *mdev = priv->mdev;
 	int i;
+	u8 mc_list[16] = {0};
 
 	if (!priv->port_up) {
 		en_dbg(DRV, priv, "stop port called while port already down\n");
@@ -722,8 +791,23 @@ void mlx4_en_stop_port(struct net_device *dev)
 	/* Set port as not active */
 	priv->port_up = false;
 
+	/* Detach All multicasts */
+	memset(&mc_list[10], 0xff, ETH_ALEN);
+	mc_list[5] = priv->port;
+	mlx4_multicast_detach(mdev->dev, &priv->rss_map.indir_qp, mc_list,
+			      MLX4_PROT_ETH);
+	for (i = 0; i < priv->mc_addrs_cnt; i++) {
+		memcpy(&mc_list[10], priv->mc_addrs + i * ETH_ALEN, ETH_ALEN);
+		mc_list[5] = priv->port;
+		mlx4_multicast_detach(mdev->dev, &priv->rss_map.indir_qp,
+				      mc_list, MLX4_PROT_ETH);
+	}
+	mlx4_en_clear_list(dev);
+	/* Flush multicast filter */
+	mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0, 1, MLX4_MCAST_CONFIG);
+
 	/* Unregister Mac address for the port */
-	mlx4_unregister_mac(mdev->dev, priv->port, priv->mac_index);
+	mlx4_unregister_mac(mdev->dev, priv->port, priv->base_qpn);
 	mdev->mac_removed[priv->port] = 1;
 
 	/* Free TX Rings */
@@ -801,7 +885,6 @@ static int mlx4_en_open(struct net_device *dev)
 		priv->rx_ring[i].packets = 0;
 	}
 
-	mlx4_en_set_default_moderation(priv);
 	err = mlx4_en_start_port(dev);
 	if (err)
 		en_err(priv, "Failed starting port:%d\n", priv->port);
@@ -828,7 +911,7 @@ static int mlx4_en_close(struct net_device *dev)
 	return 0;
 }
 
-void mlx4_en_free_resources(struct mlx4_en_priv *priv)
+void mlx4_en_free_resources(struct mlx4_en_priv *priv, bool reserve_vectors)
 {
 	int i;
 
@@ -836,14 +919,14 @@ void mlx4_en_free_resources(struct mlx4_en_priv *priv)
 		if (priv->tx_ring[i].tx_info)
 			mlx4_en_destroy_tx_ring(priv, &priv->tx_ring[i]);
 		if (priv->tx_cq[i].buf)
-			mlx4_en_destroy_cq(priv, &priv->tx_cq[i]);
+			mlx4_en_destroy_cq(priv, &priv->tx_cq[i], reserve_vectors);
 	}
 
 	for (i = 0; i < priv->rx_ring_num; i++) {
 		if (priv->rx_ring[i].rx_info)
 			mlx4_en_destroy_rx_ring(priv, &priv->rx_ring[i]);
 		if (priv->rx_cq[i].buf)
-			mlx4_en_destroy_cq(priv, &priv->rx_cq[i]);
+			mlx4_en_destroy_cq(priv, &priv->rx_cq[i], reserve_vectors);
 	}
 }
 
@@ -851,6 +934,13 @@ int mlx4_en_alloc_resources(struct mlx4_en_priv *priv)
 {
 	struct mlx4_en_port_profile *prof = priv->prof;
 	int i;
+	int base_tx_qpn, err;
+
+	err = mlx4_qp_reserve_range(priv->mdev->dev, priv->tx_ring_num, 256, &base_tx_qpn);
+	if (err) {
+		en_err(priv, "failed reserving range for TX rings\n");
+		return err;
+	}
 
 	/* Create tx Rings */
 	for (i = 0; i < priv->tx_ring_num; i++) {
@@ -858,7 +948,7 @@ int mlx4_en_alloc_resources(struct mlx4_en_priv *priv)
 				      prof->tx_ring_size, i, TX))
 			goto err;
 
-		if (mlx4_en_create_tx_ring(priv, &priv->tx_ring[i],
+		if (mlx4_en_create_tx_ring(priv, &priv->tx_ring[i], base_tx_qpn + i,
 					   prof->tx_ring_size, TXBB_SIZE))
 			goto err;
 	}
@@ -878,6 +968,7 @@ int mlx4_en_alloc_resources(struct mlx4_en_priv *priv)
 
 err:
 	en_err(priv, "Failed to allocate NIC resources\n");
+	mlx4_qp_release_range(priv->mdev->dev, base_tx_qpn, priv->tx_ring_num);
 	return -ENOMEM;
 }
 
@@ -905,7 +996,7 @@ void mlx4_en_destroy_netdev(struct net_device *dev)
 	mdev->pndev[priv->port] = NULL;
 	mutex_unlock(&mdev->state_lock);
 
-	mlx4_en_free_resources(priv);
+	mlx4_en_free_resources(priv, false);
 	free_netdev(dev);
 }
 
@@ -932,7 +1023,6 @@ static int mlx4_en_change_mtu(struct net_device *dev, int new_mtu)
 			en_dbg(DRV, priv, "Change MTU called with card down!?\n");
 		} else {
 			mlx4_en_stop_port(dev);
-			mlx4_en_set_default_moderation(priv);
 			err = mlx4_en_start_port(dev);
 			if (err) {
 				en_err(priv, "Failed restarting port:%d\n",
@@ -1079,7 +1169,25 @@ int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port,
 	en_warn(priv, "Using %d TX rings\n", prof->tx_ring_num);
 	en_warn(priv, "Using %d RX rings\n", prof->rx_ring_num);
 
+	/* Configure port */
+	err = mlx4_SET_PORT_general(mdev->dev, priv->port,
+				    MLX4_EN_MIN_MTU,
+				    0, 0, 0, 0);
+	if (err) {
+		en_err(priv, "Failed setting port general configurations "
+		       "for port %d, with error %d\n", priv->port, err);
+		goto out;
+	}
+
+	/* Init port */
+	en_warn(priv, "Initializing port\n");
+	err = mlx4_INIT_PORT(mdev->dev, priv->port);
+	if (err) {
+		en_err(priv, "Failed Initializing port\n");
+		goto out;
+	}
 	priv->registered = 1;
+	mlx4_en_set_default_moderation(priv);
 	queue_delayed_work(mdev->workqueue, &priv->stats_task, STATS_DELAY);
 	return 0;
 
diff --git a/drivers/net/mlx4/en_port.c b/drivers/net/mlx4/en_port.c
index 7f5a3221e0c1..f2a4f5dd313d 100644
--- a/drivers/net/mlx4/en_port.c
+++ b/drivers/net/mlx4/en_port.c
@@ -119,6 +119,10 @@ int mlx4_SET_PORT_qpn_calc(struct mlx4_dev *dev, u8 port, u32 base_qpn,
 	struct mlx4_set_port_rqp_calc_context *context;
 	int err;
 	u32 in_mod;
+	u32 m_promisc = (dev->caps.vep_mc_steering) ? MCAST_DIRECT : MCAST_DEFAULT;
+
+	if (dev->caps.vep_mc_steering && dev->caps.vep_uc_steering)
+		return 0;
 
 	mailbox = mlx4_alloc_cmd_mailbox(dev);
 	if (IS_ERR(mailbox))
@@ -127,8 +131,11 @@ int mlx4_SET_PORT_qpn_calc(struct mlx4_dev *dev, u8 port, u32 base_qpn,
 	memset(context, 0, sizeof *context);
 
 	context->base_qpn = cpu_to_be32(base_qpn);
-	context->promisc = cpu_to_be32(promisc << SET_PORT_PROMISC_EN_SHIFT | base_qpn);
-	context->mcast = cpu_to_be32(1 << SET_PORT_PROMISC_MODE_SHIFT | base_qpn);
+	context->n_mac = 0x7;
+	context->promisc = cpu_to_be32(promisc << SET_PORT_PROMISC_SHIFT |
+				       base_qpn);
+	context->mcast = cpu_to_be32(m_promisc << SET_PORT_MC_PROMISC_SHIFT |
+				     base_qpn);
 	context->intra_no_vlan = 0;
 	context->no_vlan = MLX4_NO_VLAN_IDX;
 	context->intra_vlan_miss = 0;
@@ -206,7 +213,7 @@ int mlx4_en_DUMP_ETH_STATS(struct mlx4_en_dev *mdev, u8 port, u8 reset)
 	}
 	stats->tx_packets = 0;
 	stats->tx_bytes = 0;
-	for (i = 0; i <= priv->tx_ring_num; i++) {
+	for (i = 0; i < priv->tx_ring_num; i++) {
 		stats->tx_packets += priv->tx_ring[i].packets;
 		stats->tx_bytes += priv->tx_ring[i].bytes;
 	}
diff --git a/drivers/net/mlx4/en_port.h b/drivers/net/mlx4/en_port.h
index 092e814b1981..e3d73e41c567 100644
--- a/drivers/net/mlx4/en_port.h
+++ b/drivers/net/mlx4/en_port.h
@@ -36,8 +36,8 @@
 
 
 #define SET_PORT_GEN_ALL_VALID	0x7
-#define SET_PORT_PROMISC_EN_SHIFT	31
-#define SET_PORT_PROMISC_MODE_SHIFT	30
+#define SET_PORT_PROMISC_SHIFT	31
+#define SET_PORT_MC_PROMISC_SHIFT	30
 
 enum {
 	MLX4_CMD_SET_VLAN_FLTR  = 0x47,
@@ -45,6 +45,12 @@ enum {
 	MLX4_CMD_DUMP_ETH_STATS = 0x49,
 };
 
+enum {
+	MCAST_DIRECT_ONLY       = 0,
+	MCAST_DIRECT            = 1,
+	MCAST_DEFAULT           = 2
+};
+
 struct mlx4_set_port_general_context {
 	u8 reserved[3];
 	u8 flags;
@@ -60,14 +66,17 @@ struct mlx4_set_port_general_context {
 
 struct mlx4_set_port_rqp_calc_context {
 	__be32 base_qpn;
-	__be32 flags;
-	u8 reserved[3];
+	u8 rererved;
+	u8 n_mac;
+	u8 n_vlan;
+	u8 n_prio;
+	u8 reserved2[3];
 	u8 mac_miss;
 	u8 intra_no_vlan;
 	u8 no_vlan;
 	u8 intra_vlan_miss;
 	u8 vlan_miss;
-	u8 reserved2[3];
+	u8 reserved3[3];
 	u8 no_vlan_prio;
 	__be32 promisc;
 	__be32 mcast;
diff --git a/drivers/net/mlx4/en_rx.c b/drivers/net/mlx4/en_rx.c
index 570f2508fb30..cfd50bc49169 100644
--- a/drivers/net/mlx4/en_rx.c
+++ b/drivers/net/mlx4/en_rx.c
@@ -706,7 +706,7 @@ int mlx4_en_poll_rx_cq(struct napi_struct *napi, int budget)
 }
 
 
-/* Calculate the last offset position that accomodates a full fragment
+/* Calculate the last offset position that accommodates a full fragment
  * (assuming fagment size = stride-align) */
 static int mlx4_en_last_alloc_offset(struct mlx4_en_priv *priv, u16 stride, u16 align)
 {
@@ -845,16 +845,10 @@ int mlx4_en_config_rss_steer(struct mlx4_en_priv *priv)
 	}
 
 	/* Configure RSS indirection qp */
-	err = mlx4_qp_reserve_range(mdev->dev, 1, 1, &priv->base_qpn);
-	if (err) {
-		en_err(priv, "Failed to reserve range for RSS "
-			     "indirection qp\n");
-		goto rss_err;
-	}
 	err = mlx4_qp_alloc(mdev->dev, priv->base_qpn, &rss_map->indir_qp);
 	if (err) {
 		en_err(priv, "Failed to allocate RSS indirection QP\n");
-		goto reserve_err;
+		goto rss_err;
 	}
 	rss_map->indir_qp.event = mlx4_en_sqp_event;
 	mlx4_en_fill_qp_context(priv, 0, 0, 0, 1, priv->base_qpn,
@@ -881,8 +875,6 @@ indir_err:
 		       MLX4_QP_STATE_RST, NULL, 0, 0, &rss_map->indir_qp);
 	mlx4_qp_remove(mdev->dev, &rss_map->indir_qp);
 	mlx4_qp_free(mdev->dev, &rss_map->indir_qp);
-reserve_err:
-	mlx4_qp_release_range(mdev->dev, priv->base_qpn, 1);
 rss_err:
 	for (i = 0; i < good_qps; i++) {
 		mlx4_qp_modify(mdev->dev, NULL, rss_map->state[i],
@@ -904,7 +896,6 @@ void mlx4_en_release_rss_steer(struct mlx4_en_priv *priv)
 		       MLX4_QP_STATE_RST, NULL, 0, 0, &rss_map->indir_qp);
 	mlx4_qp_remove(mdev->dev, &rss_map->indir_qp);
 	mlx4_qp_free(mdev->dev, &rss_map->indir_qp);
-	mlx4_qp_release_range(mdev->dev, priv->base_qpn, 1);
 
 	for (i = 0; i < priv->rx_ring_num; i++) {
 		mlx4_qp_modify(mdev->dev, NULL, rss_map->state[i],
diff --git a/drivers/net/mlx4/en_selftest.c b/drivers/net/mlx4/en_selftest.c
index 9c91a92da705..191a8dcd8a93 100644
--- a/drivers/net/mlx4/en_selftest.c
+++ b/drivers/net/mlx4/en_selftest.c
@@ -149,7 +149,7 @@ void mlx4_en_ex_selftest(struct net_device *dev, u32 *flags, u64 *buf)
 
 		netif_carrier_off(dev);
 retry_tx:
-		/* Wait untill all tx queues are empty.
+		/* Wait until all tx queues are empty.
 		 * there should not be any additional incoming traffic
 		 * since we turned the carrier off */
 		msleep(200);
diff --git a/drivers/net/mlx4/en_tx.c b/drivers/net/mlx4/en_tx.c
index a680cd4a5ab6..b229acf1855f 100644
--- a/drivers/net/mlx4/en_tx.c
+++ b/drivers/net/mlx4/en_tx.c
@@ -44,6 +44,7 @@
 
 enum {
 	MAX_INLINE = 104, /* 128 - 16 - 4 - 4 */
+	MAX_BF = 256,
 };
 
 static int inline_thold __read_mostly = MAX_INLINE;
@@ -52,7 +53,7 @@ module_param_named(inline_thold, inline_thold, int, 0444);
 MODULE_PARM_DESC(inline_thold, "threshold for using inline data");
 
 int mlx4_en_create_tx_ring(struct mlx4_en_priv *priv,
-			   struct mlx4_en_tx_ring *ring, u32 size,
+			   struct mlx4_en_tx_ring *ring, int qpn, u32 size,
 			   u16 stride)
 {
 	struct mlx4_en_dev *mdev = priv->mdev;
@@ -103,23 +104,25 @@ int mlx4_en_create_tx_ring(struct mlx4_en_priv *priv,
 	       "buf_size:%d dma:%llx\n", ring, ring->buf, ring->size,
 	       ring->buf_size, (unsigned long long) ring->wqres.buf.direct.map);
 
-	err = mlx4_qp_reserve_range(mdev->dev, 1, 1, &ring->qpn);
-	if (err) {
-		en_err(priv, "Failed reserving qp for tx ring.\n");
-		goto err_map;
-	}
-
+	ring->qpn = qpn;
 	err = mlx4_qp_alloc(mdev->dev, ring->qpn, &ring->qp);
 	if (err) {
 		en_err(priv, "Failed allocating qp %d\n", ring->qpn);
-		goto err_reserve;
+		goto err_map;
 	}
 	ring->qp.event = mlx4_en_sqp_event;
 
+	err = mlx4_bf_alloc(mdev->dev, &ring->bf);
+	if (err) {
+		en_dbg(DRV, priv, "working without blueflame (%d)", err);
+		ring->bf.uar = &mdev->priv_uar;
+		ring->bf.uar->map = mdev->uar_map;
+		ring->bf_enabled = false;
+	} else
+		ring->bf_enabled = true;
+
 	return 0;
 
-err_reserve:
-	mlx4_qp_release_range(mdev->dev, ring->qpn, 1);
 err_map:
 	mlx4_en_unmap_buffer(&ring->wqres.buf);
 err_hwq_res:
@@ -139,6 +142,8 @@ void mlx4_en_destroy_tx_ring(struct mlx4_en_priv *priv,
 	struct mlx4_en_dev *mdev = priv->mdev;
 	en_dbg(DRV, priv, "Destroying tx ring, qpn: %d\n", ring->qpn);
 
+	if (ring->bf_enabled)
+		mlx4_bf_free(mdev->dev, &ring->bf);
 	mlx4_qp_remove(mdev->dev, &ring->qp);
 	mlx4_qp_free(mdev->dev, &ring->qp);
 	mlx4_qp_release_range(mdev->dev, ring->qpn, 1);
@@ -171,6 +176,8 @@ int mlx4_en_activate_tx_ring(struct mlx4_en_priv *priv,
 
 	mlx4_en_fill_qp_context(priv, ring->size, ring->stride, 1, 0, ring->qpn,
 				ring->cqn, &ring->context);
+	if (ring->bf_enabled)
+		ring->context.usr_page = cpu_to_be32(ring->bf.uar->index);
 
 	err = mlx4_qp_to_ready(mdev->dev, &ring->wqres.mtt, &ring->context,
 			       &ring->qp, &ring->qp_state);
@@ -591,6 +598,11 @@ u16 mlx4_en_select_queue(struct net_device *dev, struct sk_buff *skb)
 	return skb_tx_hash(dev, skb);
 }
 
+static void mlx4_bf_copy(unsigned long *dst, unsigned long *src, unsigned bytecnt)
+{
+	__iowrite64_copy(dst, src, bytecnt / 8);
+}
+
 netdev_tx_t mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct mlx4_en_priv *priv = netdev_priv(dev);
@@ -609,12 +621,13 @@ netdev_tx_t mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev)
 	int desc_size;
 	int real_size;
 	dma_addr_t dma;
-	u32 index;
+	u32 index, bf_index;
 	__be32 op_own;
 	u16 vlan_tag = 0;
 	int i;
 	int lso_header_size;
 	void *fragptr;
+	bool bounce = false;
 
 	if (!priv->port_up)
 		goto tx_drop;
@@ -623,7 +636,7 @@ netdev_tx_t mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev)
 	if (unlikely(!real_size))
 		goto tx_drop;
 
-	/* Allign descriptor to TXBB size */
+	/* Align descriptor to TXBB size */
 	desc_size = ALIGN(real_size, TXBB_SIZE);
 	nr_txbb = desc_size / TXBB_SIZE;
 	if (unlikely(nr_txbb > MAX_DESC_TXBBS)) {
@@ -657,13 +670,16 @@ netdev_tx_t mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev)
 
 	/* Packet is good - grab an index and transmit it */
 	index = ring->prod & ring->size_mask;
+	bf_index = ring->prod;
 
 	/* See if we have enough space for whole descriptor TXBB for setting
 	 * SW ownership on next descriptor; if not, use a bounce buffer. */
 	if (likely(index + nr_txbb <= ring->size))
 		tx_desc = ring->buf + index * TXBB_SIZE;
-	else
+	else {
 		tx_desc = (struct mlx4_en_tx_desc *) ring->bounce_buf;
+		bounce = true;
+	}
 
 	/* Save skb in tx_info ring */
 	tx_info = &ring->tx_info[index];
@@ -768,21 +784,37 @@ netdev_tx_t mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev)
 	ring->prod += nr_txbb;
 
 	/* If we used a bounce buffer then copy descriptor back into place */
-	if (tx_desc == (struct mlx4_en_tx_desc *) ring->bounce_buf)
+	if (bounce)
 		tx_desc = mlx4_en_bounce_to_desc(priv, ring, index, desc_size);
 
 	/* Run destructor before passing skb to HW */
 	if (likely(!skb_shared(skb)))
 		skb_orphan(skb);
 
-	/* Ensure new descirptor hits memory
-	 * before setting ownership of this descriptor to HW */
-	wmb();
-	tx_desc->ctrl.owner_opcode = op_own;
+	if (ring->bf_enabled && desc_size <= MAX_BF && !bounce && !vlan_tag) {
+		*(u32 *) (&tx_desc->ctrl.vlan_tag) |= ring->doorbell_qpn;
+		op_own |= htonl((bf_index & 0xffff) << 8);
+		/* Ensure new descirptor hits memory
+		* before setting ownership of this descriptor to HW */
+		wmb();
+		tx_desc->ctrl.owner_opcode = op_own;
 
-	/* Ring doorbell! */
-	wmb();
-	writel(ring->doorbell_qpn, mdev->uar_map + MLX4_SEND_DOORBELL);
+		wmb();
+
+		mlx4_bf_copy(ring->bf.reg + ring->bf.offset, (unsigned long *) &tx_desc->ctrl,
+		     desc_size);
+
+		wmb();
+
+		ring->bf.offset ^= ring->bf.buf_size;
+	} else {
+		/* Ensure new descirptor hits memory
+		* before setting ownership of this descriptor to HW */
+		wmb();
+		tx_desc->ctrl.owner_opcode = op_own;
+		wmb();
+		writel(ring->doorbell_qpn, ring->bf.uar->map + MLX4_SEND_DOORBELL);
+	}
 
 	/* Poll CQ here */
 	mlx4_en_xmit_poll(priv, tx_ind);
diff --git a/drivers/net/mlx4/eq.c b/drivers/net/mlx4/eq.c
index 552d0fce6f67..1ad1f6029af8 100644
--- a/drivers/net/mlx4/eq.c
+++ b/drivers/net/mlx4/eq.c
@@ -42,7 +42,7 @@
 #include "fw.h"
 
 enum {
-	MLX4_IRQNAME_SIZE	= 64
+	MLX4_IRQNAME_SIZE	= 32
 };
 
 enum {
@@ -317,8 +317,8 @@ static int mlx4_num_eq_uar(struct mlx4_dev *dev)
 	 * we need to map, take the difference of highest index and
 	 * the lowest index we'll use and add 1.
 	 */
-	return (dev->caps.num_comp_vectors + 1 + dev->caps.reserved_eqs) / 4 -
-		dev->caps.reserved_eqs / 4 + 1;
+	return (dev->caps.num_comp_vectors + 1 + dev->caps.reserved_eqs +
+		 dev->caps.comp_pool)/4 - dev->caps.reserved_eqs/4 + 1;
 }
 
 static void __iomem *mlx4_get_eq_uar(struct mlx4_dev *dev, struct mlx4_eq *eq)
@@ -496,16 +496,32 @@ static void mlx4_free_eq(struct mlx4_dev *dev,
 static void mlx4_free_irqs(struct mlx4_dev *dev)
 {
 	struct mlx4_eq_table *eq_table = &mlx4_priv(dev)->eq_table;
-	int i;
+	struct mlx4_priv *priv = mlx4_priv(dev);
+	int	i, vec;
 
 	if (eq_table->have_irq)
 		free_irq(dev->pdev->irq, dev);
+
 	for (i = 0; i < dev->caps.num_comp_vectors + 1; ++i)
 		if (eq_table->eq[i].have_irq) {
 			free_irq(eq_table->eq[i].irq, eq_table->eq + i);
 			eq_table->eq[i].have_irq = 0;
 		}
 
+	for (i = 0; i < dev->caps.comp_pool; i++) {
+		/*
+		 * Freeing the assigned irq's
+		 * all bits should be 0, but we need to validate
+		 */
+		if (priv->msix_ctl.pool_bm & 1ULL << i) {
+			/* NO need protecting*/
+			vec = dev->caps.num_comp_vectors + 1 + i;
+			free_irq(priv->eq_table.eq[vec].irq,
+				 &priv->eq_table.eq[vec]);
+		}
+	}
+
+
 	kfree(eq_table->irq_names);
 }
 
@@ -578,7 +594,8 @@ int mlx4_init_eq_table(struct mlx4_dev *dev)
 		(priv->eq_table.inta_pin < 32 ? 4 : 0);
 
 	priv->eq_table.irq_names =
-		kmalloc(MLX4_IRQNAME_SIZE * (dev->caps.num_comp_vectors + 1),
+		kmalloc(MLX4_IRQNAME_SIZE * (dev->caps.num_comp_vectors + 1 +
+					     dev->caps.comp_pool),
 			GFP_KERNEL);
 	if (!priv->eq_table.irq_names) {
 		err = -ENOMEM;
@@ -586,7 +603,9 @@ int mlx4_init_eq_table(struct mlx4_dev *dev)
 	}
 
 	for (i = 0; i < dev->caps.num_comp_vectors; ++i) {
-		err = mlx4_create_eq(dev, dev->caps.num_cqs + MLX4_NUM_SPARE_EQE,
+		err = mlx4_create_eq(dev, dev->caps.num_cqs -
+					  dev->caps.reserved_cqs +
+					  MLX4_NUM_SPARE_EQE,
 				     (dev->flags & MLX4_FLAG_MSI_X) ? i : 0,
 				     &priv->eq_table.eq[i]);
 		if (err) {
@@ -601,6 +620,22 @@ int mlx4_init_eq_table(struct mlx4_dev *dev)
 	if (err)
 		goto err_out_comp;
 
+	/*if additional completion vectors poolsize is 0 this loop will not run*/
+	for (i = dev->caps.num_comp_vectors + 1;
+	      i < dev->caps.num_comp_vectors + dev->caps.comp_pool + 1; ++i) {
+
+		err = mlx4_create_eq(dev, dev->caps.num_cqs -
+					  dev->caps.reserved_cqs +
+					  MLX4_NUM_SPARE_EQE,
+				     (dev->flags & MLX4_FLAG_MSI_X) ? i : 0,
+				     &priv->eq_table.eq[i]);
+		if (err) {
+			--i;
+			goto err_out_unmap;
+		}
+	}
+
+
 	if (dev->flags & MLX4_FLAG_MSI_X) {
 		const char *eq_name;
 
@@ -686,7 +721,7 @@ void mlx4_cleanup_eq_table(struct mlx4_dev *dev)
 
 	mlx4_free_irqs(dev);
 
-	for (i = 0; i < dev->caps.num_comp_vectors + 1; ++i)
+	for (i = 0; i < dev->caps.num_comp_vectors + dev->caps.comp_pool + 1; ++i)
 		mlx4_free_eq(dev, &priv->eq_table.eq[i]);
 
 	mlx4_unmap_clr_int(dev);
@@ -743,3 +778,65 @@ int mlx4_test_interrupts(struct mlx4_dev *dev)
 	return err;
 }
 EXPORT_SYMBOL(mlx4_test_interrupts);
+
+int mlx4_assign_eq(struct mlx4_dev *dev, char* name, int * vector)
+{
+
+	struct mlx4_priv *priv = mlx4_priv(dev);
+	int vec = 0, err = 0, i;
+
+	spin_lock(&priv->msix_ctl.pool_lock);
+	for (i = 0; !vec && i < dev->caps.comp_pool; i++) {
+		if (~priv->msix_ctl.pool_bm & 1ULL << i) {
+			priv->msix_ctl.pool_bm |= 1ULL << i;
+			vec = dev->caps.num_comp_vectors + 1 + i;
+			snprintf(priv->eq_table.irq_names +
+					vec * MLX4_IRQNAME_SIZE,
+					MLX4_IRQNAME_SIZE, "%s", name);
+			err = request_irq(priv->eq_table.eq[vec].irq,
+					  mlx4_msi_x_interrupt, 0,
+					  &priv->eq_table.irq_names[vec<<5],
+					  priv->eq_table.eq + vec);
+			if (err) {
+				/*zero out bit by fliping it*/
+				priv->msix_ctl.pool_bm ^= 1 << i;
+				vec = 0;
+				continue;
+				/*we dont want to break here*/
+			}
+			eq_set_ci(&priv->eq_table.eq[vec], 1);
+		}
+	}
+	spin_unlock(&priv->msix_ctl.pool_lock);
+
+	if (vec) {
+		*vector = vec;
+	} else {
+		*vector = 0;
+		err = (i == dev->caps.comp_pool) ? -ENOSPC : err;
+	}
+	return err;
+}
+EXPORT_SYMBOL(mlx4_assign_eq);
+
+void mlx4_release_eq(struct mlx4_dev *dev, int vec)
+{
+	struct mlx4_priv *priv = mlx4_priv(dev);
+	/*bm index*/
+	int i = vec - dev->caps.num_comp_vectors - 1;
+
+	if (likely(i >= 0)) {
+		/*sanity check , making sure were not trying to free irq's
+		  Belonging to a legacy EQ*/
+		spin_lock(&priv->msix_ctl.pool_lock);
+		if (priv->msix_ctl.pool_bm & 1ULL << i) {
+			free_irq(priv->eq_table.eq[vec].irq,
+				 &priv->eq_table.eq[vec]);
+			priv->msix_ctl.pool_bm &= ~(1ULL << i);
+		}
+		spin_unlock(&priv->msix_ctl.pool_lock);
+	}
+
+}
+EXPORT_SYMBOL(mlx4_release_eq);
+
diff --git a/drivers/net/mlx4/fw.c b/drivers/net/mlx4/fw.c
index 5de1db897835..67a209ba939d 100644
--- a/drivers/net/mlx4/fw.c
+++ b/drivers/net/mlx4/fw.c
@@ -274,8 +274,11 @@ int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
 	dev_cap->stat_rate_support = stat_rate;
 	MLX4_GET(field, outbox, QUERY_DEV_CAP_UDP_RSS_OFFSET);
 	dev_cap->udp_rss = field & 0x1;
+	dev_cap->vep_uc_steering = field & 0x2;
+	dev_cap->vep_mc_steering = field & 0x4;
 	MLX4_GET(field, outbox, QUERY_DEV_CAP_ETH_UC_LOOPBACK_OFFSET);
 	dev_cap->loopback_support = field & 0x1;
+	dev_cap->wol = field & 0x40;
 	MLX4_GET(dev_cap->flags, outbox, QUERY_DEV_CAP_FLAGS_OFFSET);
 	MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_UAR_OFFSET);
 	dev_cap->reserved_uars = field >> 4;
@@ -737,6 +740,7 @@ int mlx4_INIT_HCA(struct mlx4_dev *dev, struct mlx4_init_hca_param *param)
 #define	 INIT_HCA_MC_BASE_OFFSET	 (INIT_HCA_MCAST_OFFSET + 0x00)
 #define	 INIT_HCA_LOG_MC_ENTRY_SZ_OFFSET (INIT_HCA_MCAST_OFFSET + 0x12)
 #define	 INIT_HCA_LOG_MC_HASH_SZ_OFFSET	 (INIT_HCA_MCAST_OFFSET + 0x16)
+#define  INIT_HCA_UC_STEERING_OFFSET	 (INIT_HCA_MCAST_OFFSET + 0x18)
 #define	 INIT_HCA_LOG_MC_TABLE_SZ_OFFSET (INIT_HCA_MCAST_OFFSET + 0x1b)
 #define INIT_HCA_TPT_OFFSET		 0x0f0
 #define	 INIT_HCA_DMPT_BASE_OFFSET	 (INIT_HCA_TPT_OFFSET + 0x00)
@@ -797,6 +801,8 @@ int mlx4_INIT_HCA(struct mlx4_dev *dev, struct mlx4_init_hca_param *param)
 	MLX4_PUT(inbox, param->mc_base,		INIT_HCA_MC_BASE_OFFSET);
 	MLX4_PUT(inbox, param->log_mc_entry_sz, INIT_HCA_LOG_MC_ENTRY_SZ_OFFSET);
 	MLX4_PUT(inbox, param->log_mc_hash_sz,  INIT_HCA_LOG_MC_HASH_SZ_OFFSET);
+	if (dev->caps.vep_mc_steering)
+		MLX4_PUT(inbox, (u8) (1 << 3),	INIT_HCA_UC_STEERING_OFFSET);
 	MLX4_PUT(inbox, param->log_mc_table_sz, INIT_HCA_LOG_MC_TABLE_SZ_OFFSET);
 
 	/* TPT attributes */
@@ -908,3 +914,22 @@ int mlx4_NOP(struct mlx4_dev *dev)
 	/* Input modifier of 0x1f means "finish as soon as possible." */
 	return mlx4_cmd(dev, 0, 0x1f, 0, MLX4_CMD_NOP, 100);
 }
+
+#define MLX4_WOL_SETUP_MODE (5 << 28)
+int mlx4_wol_read(struct mlx4_dev *dev, u64 *config, int port)
+{
+	u32 in_mod = MLX4_WOL_SETUP_MODE | port << 8;
+
+	return mlx4_cmd_imm(dev, 0, config, in_mod, 0x3,
+			    MLX4_CMD_MOD_STAT_CFG, MLX4_CMD_TIME_CLASS_A);
+}
+EXPORT_SYMBOL_GPL(mlx4_wol_read);
+
+int mlx4_wol_write(struct mlx4_dev *dev, u64 config, int port)
+{
+	u32 in_mod = MLX4_WOL_SETUP_MODE | port << 8;
+
+	return mlx4_cmd(dev, config, in_mod, 0x1, MLX4_CMD_MOD_STAT_CFG,
+					MLX4_CMD_TIME_CLASS_A);
+}
+EXPORT_SYMBOL_GPL(mlx4_wol_write);
diff --git a/drivers/net/mlx4/fw.h b/drivers/net/mlx4/fw.h
index 65cc72eb899d..88003ebc6185 100644
--- a/drivers/net/mlx4/fw.h
+++ b/drivers/net/mlx4/fw.h
@@ -80,6 +80,9 @@ struct mlx4_dev_cap {
 	u16 stat_rate_support;
 	int udp_rss;
 	int loopback_support;
+	int vep_uc_steering;
+	int vep_mc_steering;
+	int wol;
 	u32 flags;
 	int reserved_uars;
 	int uar_size;
diff --git a/drivers/net/mlx4/main.c b/drivers/net/mlx4/main.c
index c83501122d77..62fa7eec5f0c 100644
--- a/drivers/net/mlx4/main.c
+++ b/drivers/net/mlx4/main.c
@@ -39,6 +39,7 @@
 #include <linux/pci.h>
 #include <linux/dma-mapping.h>
 #include <linux/slab.h>
+#include <linux/io-mapping.h>
 
 #include <linux/mlx4/device.h>
 #include <linux/mlx4/doorbell.h>
@@ -227,6 +228,9 @@ static int mlx4_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
 	dev->caps.stat_rate_support  = dev_cap->stat_rate_support;
 	dev->caps.udp_rss	     = dev_cap->udp_rss;
 	dev->caps.loopback_support   = dev_cap->loopback_support;
+	dev->caps.vep_uc_steering    = dev_cap->vep_uc_steering;
+	dev->caps.vep_mc_steering    = dev_cap->vep_mc_steering;
+	dev->caps.wol		     = dev_cap->wol;
 	dev->caps.max_gso_sz	     = dev_cap->max_gso_sz;
 
 	dev->caps.log_num_macs  = log_num_mac;
@@ -718,8 +722,31 @@ static void mlx4_free_icms(struct mlx4_dev *dev)
 	mlx4_free_icm(dev, priv->fw.aux_icm, 0);
 }
 
+static int map_bf_area(struct mlx4_dev *dev)
+{
+	struct mlx4_priv *priv = mlx4_priv(dev);
+	resource_size_t bf_start;
+	resource_size_t bf_len;
+	int err = 0;
+
+	bf_start = pci_resource_start(dev->pdev, 2) + (dev->caps.num_uars << PAGE_SHIFT);
+	bf_len = pci_resource_len(dev->pdev, 2) - (dev->caps.num_uars << PAGE_SHIFT);
+	priv->bf_mapping = io_mapping_create_wc(bf_start, bf_len);
+	if (!priv->bf_mapping)
+		err = -ENOMEM;
+
+	return err;
+}
+
+static void unmap_bf_area(struct mlx4_dev *dev)
+{
+	if (mlx4_priv(dev)->bf_mapping)
+		io_mapping_free(mlx4_priv(dev)->bf_mapping);
+}
+
 static void mlx4_close_hca(struct mlx4_dev *dev)
 {
+	unmap_bf_area(dev);
 	mlx4_CLOSE_HCA(dev, 0);
 	mlx4_free_icms(dev);
 	mlx4_UNMAP_FA(dev);
@@ -772,6 +799,9 @@ static int mlx4_init_hca(struct mlx4_dev *dev)
 		goto err_stop_fw;
 	}
 
+	if (map_bf_area(dev))
+		mlx4_dbg(dev, "Failed to map blue flame area\n");
+
 	init_hca.log_uar_sz = ilog2(dev->caps.num_uars);
 
 	err = mlx4_init_icm(dev, &dev_cap, &init_hca, icm_size);
@@ -802,6 +832,7 @@ err_free_icm:
 	mlx4_free_icms(dev);
 
 err_stop_fw:
+	unmap_bf_area(dev);
 	mlx4_UNMAP_FA(dev);
 	mlx4_free_icm(dev, priv->fw.fw_icm, 0);
 
@@ -969,13 +1000,15 @@ static void mlx4_enable_msi_x(struct mlx4_dev *dev)
 {
 	struct mlx4_priv *priv = mlx4_priv(dev);
 	struct msix_entry *entries;
-	int nreq;
+	int nreq = min_t(int, dev->caps.num_ports *
+			 min_t(int, num_online_cpus() + 1, MAX_MSIX_P_PORT)
+				+ MSIX_LEGACY_SZ, MAX_MSIX);
 	int err;
 	int i;
 
 	if (msi_x) {
 		nreq = min_t(int, dev->caps.num_eqs - dev->caps.reserved_eqs,
-			     num_possible_cpus() + 1);
+			     nreq);
 		entries = kcalloc(nreq, sizeof *entries, GFP_KERNEL);
 		if (!entries)
 			goto no_msi;
@@ -998,7 +1031,15 @@ static void mlx4_enable_msi_x(struct mlx4_dev *dev)
 			goto no_msi;
 		}
 
-		dev->caps.num_comp_vectors = nreq - 1;
+		if (nreq <
+		    MSIX_LEGACY_SZ + dev->caps.num_ports * MIN_MSIX_P_PORT) {
+			/*Working in legacy mode , all EQ's shared*/
+			dev->caps.comp_pool           = 0;
+			dev->caps.num_comp_vectors = nreq - 1;
+		} else {
+			dev->caps.comp_pool           = nreq - MSIX_LEGACY_SZ;
+			dev->caps.num_comp_vectors = MSIX_LEGACY_SZ - 1;
+		}
 		for (i = 0; i < nreq; ++i)
 			priv->eq_table.eq[i].irq = entries[i].vector;
 
@@ -1010,6 +1051,7 @@ static void mlx4_enable_msi_x(struct mlx4_dev *dev)
 
 no_msi:
 	dev->caps.num_comp_vectors = 1;
+	dev->caps.comp_pool	   = 0;
 
 	for (i = 0; i < 2; ++i)
 		priv->eq_table.eq[i].irq = dev->pdev->irq;
@@ -1049,6 +1091,59 @@ static void mlx4_cleanup_port_info(struct mlx4_port_info *info)
 	device_remove_file(&info->dev->pdev->dev, &info->port_attr);
 }
 
+static int mlx4_init_steering(struct mlx4_dev *dev)
+{
+	struct mlx4_priv *priv = mlx4_priv(dev);
+	int num_entries = dev->caps.num_ports;
+	int i, j;
+
+	priv->steer = kzalloc(sizeof(struct mlx4_steer) * num_entries, GFP_KERNEL);
+	if (!priv->steer)
+		return -ENOMEM;
+
+	for (i = 0; i < num_entries; i++) {
+		for (j = 0; j < MLX4_NUM_STEERS; j++) {
+			INIT_LIST_HEAD(&priv->steer[i].promisc_qps[j]);
+			INIT_LIST_HEAD(&priv->steer[i].steer_entries[j]);
+		}
+		INIT_LIST_HEAD(&priv->steer[i].high_prios);
+	}
+	return 0;
+}
+
+static void mlx4_clear_steering(struct mlx4_dev *dev)
+{
+	struct mlx4_priv *priv = mlx4_priv(dev);
+	struct mlx4_steer_index *entry, *tmp_entry;
+	struct mlx4_promisc_qp *pqp, *tmp_pqp;
+	int num_entries = dev->caps.num_ports;
+	int i, j;
+
+	for (i = 0; i < num_entries; i++) {
+		for (j = 0; j < MLX4_NUM_STEERS; j++) {
+			list_for_each_entry_safe(pqp, tmp_pqp,
+						 &priv->steer[i].promisc_qps[j],
+						 list) {
+				list_del(&pqp->list);
+				kfree(pqp);
+			}
+			list_for_each_entry_safe(entry, tmp_entry,
+						 &priv->steer[i].steer_entries[j],
+						 list) {
+				list_del(&entry->list);
+				list_for_each_entry_safe(pqp, tmp_pqp,
+							 &entry->duplicates,
+							 list) {
+					list_del(&pqp->list);
+					kfree(pqp);
+				}
+				kfree(entry);
+			}
+		}
+	}
+	kfree(priv->steer);
+}
+
 static int __mlx4_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
 {
 	struct mlx4_priv *priv;
@@ -1130,6 +1225,11 @@ static int __mlx4_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
 	INIT_LIST_HEAD(&priv->pgdir_list);
 	mutex_init(&priv->pgdir_mutex);
 
+	pci_read_config_byte(pdev, PCI_REVISION_ID, &dev->rev_id);
+
+	INIT_LIST_HEAD(&priv->bf_list);
+	mutex_init(&priv->bf_mutex);
+
 	/*
 	 * Now reset the HCA before we touch the PCI capabilities or
 	 * attempt a firmware command, since a boot ROM may have left
@@ -1154,8 +1254,15 @@ static int __mlx4_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
 	if (err)
 		goto err_close;
 
+	priv->msix_ctl.pool_bm = 0;
+	spin_lock_init(&priv->msix_ctl.pool_lock);
+
 	mlx4_enable_msi_x(dev);
 
+	err = mlx4_init_steering(dev);
+	if (err)
+		goto err_free_eq;
+
 	err = mlx4_setup_hca(dev);
 	if (err == -EBUSY && (dev->flags & MLX4_FLAG_MSI_X)) {
 		dev->flags &= ~MLX4_FLAG_MSI_X;
@@ -1164,7 +1271,7 @@ static int __mlx4_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
 	}
 
 	if (err)
-		goto err_free_eq;
+		goto err_steer;
 
 	for (port = 1; port <= dev->caps.num_ports; port++) {
 		err = mlx4_init_port_info(dev, port);
@@ -1197,6 +1304,9 @@ err_port:
 	mlx4_cleanup_pd_table(dev);
 	mlx4_cleanup_uar_table(dev);
 
+err_steer:
+	mlx4_clear_steering(dev);
+
 err_free_eq:
 	mlx4_free_eq_table(dev);
 
@@ -1256,6 +1366,7 @@ static void mlx4_remove_one(struct pci_dev *pdev)
 		iounmap(priv->kar);
 		mlx4_uar_free(dev, &priv->driver_uar);
 		mlx4_cleanup_uar_table(dev);
+		mlx4_clear_steering(dev);
 		mlx4_free_eq_table(dev);
 		mlx4_close_hca(dev);
 		mlx4_cmd_cleanup(dev);
diff --git a/drivers/net/mlx4/mcg.c b/drivers/net/mlx4/mcg.c
index 79cf42db2ea9..e63c37d6a115 100644
--- a/drivers/net/mlx4/mcg.c
+++ b/drivers/net/mlx4/mcg.c
@@ -32,6 +32,7 @@
  */
 
 #include <linux/string.h>
+#include <linux/etherdevice.h>
 
 #include <linux/mlx4/cmd.h>
 
@@ -40,38 +41,40 @@
 #define MGM_QPN_MASK       0x00FFFFFF
 #define MGM_BLCK_LB_BIT    30
 
-struct mlx4_mgm {
-	__be32			next_gid_index;
-	__be32			members_count;
-	u32			reserved[2];
-	u8			gid[16];
-	__be32			qp[MLX4_QP_PER_MGM];
-};
-
 static const u8 zero_gid[16];	/* automatically initialized to 0 */
 
-static int mlx4_READ_MCG(struct mlx4_dev *dev, int index,
-			 struct mlx4_cmd_mailbox *mailbox)
+static int mlx4_READ_ENTRY(struct mlx4_dev *dev, int index,
+			   struct mlx4_cmd_mailbox *mailbox)
 {
 	return mlx4_cmd_box(dev, 0, mailbox->dma, index, 0, MLX4_CMD_READ_MCG,
 			    MLX4_CMD_TIME_CLASS_A);
 }
 
-static int mlx4_WRITE_MCG(struct mlx4_dev *dev, int index,
-			  struct mlx4_cmd_mailbox *mailbox)
+static int mlx4_WRITE_ENTRY(struct mlx4_dev *dev, int index,
+			    struct mlx4_cmd_mailbox *mailbox)
 {
 	return mlx4_cmd(dev, mailbox->dma, index, 0, MLX4_CMD_WRITE_MCG,
 			MLX4_CMD_TIME_CLASS_A);
 }
 
-static int mlx4_MGID_HASH(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
-			  u16 *hash)
+static int mlx4_WRITE_PROMISC(struct mlx4_dev *dev, u8 vep_num, u8 port, u8 steer,
+			      struct mlx4_cmd_mailbox *mailbox)
+{
+	u32 in_mod;
+
+	in_mod = (u32) vep_num << 24 | (u32) port << 16 | steer << 1;
+	return mlx4_cmd(dev, mailbox->dma, in_mod, 0x1,
+			MLX4_CMD_WRITE_MCG, MLX4_CMD_TIME_CLASS_A);
+}
+
+static int mlx4_GID_HASH(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
+			 u16 *hash, u8 op_mod)
 {
 	u64 imm;
 	int err;
 
-	err = mlx4_cmd_imm(dev, mailbox->dma, &imm, 0, 0, MLX4_CMD_MGID_HASH,
-			   MLX4_CMD_TIME_CLASS_A);
+	err = mlx4_cmd_imm(dev, mailbox->dma, &imm, 0, op_mod,
+			   MLX4_CMD_MGID_HASH, MLX4_CMD_TIME_CLASS_A);
 
 	if (!err)
 		*hash = imm;
@@ -79,6 +82,458 @@ static int mlx4_MGID_HASH(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox
 	return err;
 }
 
+static struct mlx4_promisc_qp *get_promisc_qp(struct mlx4_dev *dev, u8 pf_num,
+					      enum mlx4_steer_type steer,
+					      u32 qpn)
+{
+	struct mlx4_steer *s_steer = &mlx4_priv(dev)->steer[pf_num];
+	struct mlx4_promisc_qp *pqp;
+
+	list_for_each_entry(pqp, &s_steer->promisc_qps[steer], list) {
+		if (pqp->qpn == qpn)
+			return pqp;
+	}
+	/* not found */
+	return NULL;
+}
+
+/*
+ * Add new entry to steering data structure.
+ * All promisc QPs should be added as well
+ */
+static int new_steering_entry(struct mlx4_dev *dev, u8 vep_num, u8 port,
+			      enum mlx4_steer_type steer,
+			      unsigned int index, u32 qpn)
+{
+	struct mlx4_steer *s_steer;
+	struct mlx4_cmd_mailbox *mailbox;
+	struct mlx4_mgm *mgm;
+	u32 members_count;
+	struct mlx4_steer_index *new_entry;
+	struct mlx4_promisc_qp *pqp;
+	struct mlx4_promisc_qp *dqp = NULL;
+	u32 prot;
+	int err;
+	u8 pf_num;
+
+	pf_num = (dev->caps.num_ports == 1) ? vep_num : (vep_num << 1) | (port - 1);
+	s_steer = &mlx4_priv(dev)->steer[pf_num];
+	new_entry = kzalloc(sizeof *new_entry, GFP_KERNEL);
+	if (!new_entry)
+		return -ENOMEM;
+
+	INIT_LIST_HEAD(&new_entry->duplicates);
+	new_entry->index = index;
+	list_add_tail(&new_entry->list, &s_steer->steer_entries[steer]);
+
+	/* If the given qpn is also a promisc qp,
+	 * it should be inserted to duplicates list
+	 */
+	pqp = get_promisc_qp(dev, pf_num, steer, qpn);
+	if (pqp) {
+		dqp = kmalloc(sizeof *dqp, GFP_KERNEL);
+		if (!dqp) {
+			err = -ENOMEM;
+			goto out_alloc;
+		}
+		dqp->qpn = qpn;
+		list_add_tail(&dqp->list, &new_entry->duplicates);
+	}
+
+	/* if no promisc qps for this vep, we are done */
+	if (list_empty(&s_steer->promisc_qps[steer]))
+		return 0;
+
+	/* now need to add all the promisc qps to the new
+	 * steering entry, as they should also receive the packets
+	 * destined to this address */
+	mailbox = mlx4_alloc_cmd_mailbox(dev);
+	if (IS_ERR(mailbox)) {
+		err = -ENOMEM;
+		goto out_alloc;
+	}
+	mgm = mailbox->buf;
+
+	err = mlx4_READ_ENTRY(dev, index, mailbox);
+	if (err)
+		goto out_mailbox;
+
+	members_count = be32_to_cpu(mgm->members_count) & 0xffffff;
+	prot = be32_to_cpu(mgm->members_count) >> 30;
+	list_for_each_entry(pqp, &s_steer->promisc_qps[steer], list) {
+		/* don't add already existing qpn */
+		if (pqp->qpn == qpn)
+			continue;
+		if (members_count == MLX4_QP_PER_MGM) {
+			/* out of space */
+			err = -ENOMEM;
+			goto out_mailbox;
+		}
+
+		/* add the qpn */
+		mgm->qp[members_count++] = cpu_to_be32(pqp->qpn & MGM_QPN_MASK);
+	}
+	/* update the qps count and update the entry with all the promisc qps*/
+	mgm->members_count = cpu_to_be32(members_count | (prot << 30));
+	err = mlx4_WRITE_ENTRY(dev, index, mailbox);
+
+out_mailbox:
+	mlx4_free_cmd_mailbox(dev, mailbox);
+	if (!err)
+		return 0;
+out_alloc:
+	if (dqp) {
+		list_del(&dqp->list);
+		kfree(dqp);
+	}
+	list_del(&new_entry->list);
+	kfree(new_entry);
+	return err;
+}
+
+/* update the data structures with existing steering entry */
+static int existing_steering_entry(struct mlx4_dev *dev, u8 vep_num, u8 port,
+				   enum mlx4_steer_type steer,
+				   unsigned int index, u32 qpn)
+{
+	struct mlx4_steer *s_steer;
+	struct mlx4_steer_index *tmp_entry, *entry = NULL;
+	struct mlx4_promisc_qp *pqp;
+	struct mlx4_promisc_qp *dqp;
+	u8 pf_num;
+
+	pf_num = (dev->caps.num_ports == 1) ? vep_num : (vep_num << 1) | (port - 1);
+	s_steer = &mlx4_priv(dev)->steer[pf_num];
+
+	pqp = get_promisc_qp(dev, pf_num, steer, qpn);
+	if (!pqp)
+		return 0; /* nothing to do */
+
+	list_for_each_entry(tmp_entry, &s_steer->steer_entries[steer], list) {
+		if (tmp_entry->index == index) {
+			entry = tmp_entry;
+			break;
+		}
+	}
+	if (unlikely(!entry)) {
+		mlx4_warn(dev, "Steering entry at index %x is not registered\n", index);
+		return -EINVAL;
+	}
+
+	/* the given qpn is listed as a promisc qpn
+	 * we need to add it as a duplicate to this entry
+	 * for future references */
+	list_for_each_entry(dqp, &entry->duplicates, list) {
+		if (qpn == dqp->qpn)
+			return 0; /* qp is already duplicated */
+	}
+
+	/* add the qp as a duplicate on this index */
+	dqp = kmalloc(sizeof *dqp, GFP_KERNEL);
+	if (!dqp)
+		return -ENOMEM;
+	dqp->qpn = qpn;
+	list_add_tail(&dqp->list, &entry->duplicates);
+
+	return 0;
+}
+
+/* Check whether a qpn is a duplicate on steering entry
+ * If so, it should not be removed from mgm */
+static bool check_duplicate_entry(struct mlx4_dev *dev, u8 vep_num, u8 port,
+				  enum mlx4_steer_type steer,
+				  unsigned int index, u32 qpn)
+{
+	struct mlx4_steer *s_steer;
+	struct mlx4_steer_index *tmp_entry, *entry = NULL;
+	struct mlx4_promisc_qp *dqp, *tmp_dqp;
+	u8 pf_num;
+
+	pf_num = (dev->caps.num_ports == 1) ? vep_num : (vep_num << 1) | (port - 1);
+	s_steer = &mlx4_priv(dev)->steer[pf_num];
+
+	/* if qp is not promisc, it cannot be duplicated */
+	if (!get_promisc_qp(dev, pf_num, steer, qpn))
+		return false;
+
+	/* The qp is promisc qp so it is a duplicate on this index
+	 * Find the index entry, and remove the duplicate */
+	list_for_each_entry(tmp_entry, &s_steer->steer_entries[steer], list) {
+		if (tmp_entry->index == index) {
+			entry = tmp_entry;
+			break;
+		}
+	}
+	if (unlikely(!entry)) {
+		mlx4_warn(dev, "Steering entry for index %x is not registered\n", index);
+		return false;
+	}
+	list_for_each_entry_safe(dqp, tmp_dqp, &entry->duplicates, list) {
+		if (dqp->qpn == qpn) {
+			list_del(&dqp->list);
+			kfree(dqp);
+		}
+	}
+	return true;
+}
+
+/* I a steering entry contains only promisc QPs, it can be removed. */
+static bool can_remove_steering_entry(struct mlx4_dev *dev, u8 vep_num, u8 port,
+				      enum mlx4_steer_type steer,
+				      unsigned int index, u32 tqpn)
+{
+	struct mlx4_steer *s_steer;
+	struct mlx4_cmd_mailbox *mailbox;
+	struct mlx4_mgm *mgm;
+	struct mlx4_steer_index *entry = NULL, *tmp_entry;
+	u32 qpn;
+	u32 members_count;
+	bool ret = false;
+	int i;
+	u8 pf_num;
+
+	pf_num = (dev->caps.num_ports == 1) ? vep_num : (vep_num << 1) | (port - 1);
+	s_steer = &mlx4_priv(dev)->steer[pf_num];
+
+	mailbox = mlx4_alloc_cmd_mailbox(dev);
+	if (IS_ERR(mailbox))
+		return false;
+	mgm = mailbox->buf;
+
+	if (mlx4_READ_ENTRY(dev, index, mailbox))
+		goto out;
+	members_count = be32_to_cpu(mgm->members_count) & 0xffffff;
+	for (i = 0;  i < members_count; i++) {
+		qpn = be32_to_cpu(mgm->qp[i]) & MGM_QPN_MASK;
+		if (!get_promisc_qp(dev, pf_num, steer, qpn) && qpn != tqpn) {
+			/* the qp is not promisc, the entry can't be removed */
+			goto out;
+		}
+	}
+	 /* All the qps currently registered for this entry are promiscuous,
+	  * Checking for duplicates */
+	ret = true;
+	list_for_each_entry_safe(entry, tmp_entry, &s_steer->steer_entries[steer], list) {
+		if (entry->index == index) {
+			if (list_empty(&entry->duplicates)) {
+				list_del(&entry->list);
+				kfree(entry);
+			} else {
+				/* This entry contains duplicates so it shouldn't be removed */
+				ret = false;
+				goto out;
+			}
+		}
+	}
+
+out:
+	mlx4_free_cmd_mailbox(dev, mailbox);
+	return ret;
+}
+
+static int add_promisc_qp(struct mlx4_dev *dev, u8 vep_num, u8 port,
+			  enum mlx4_steer_type steer, u32 qpn)
+{
+	struct mlx4_steer *s_steer;
+	struct mlx4_cmd_mailbox *mailbox;
+	struct mlx4_mgm *mgm;
+	struct mlx4_steer_index *entry;
+	struct mlx4_promisc_qp *pqp;
+	struct mlx4_promisc_qp *dqp;
+	u32 members_count;
+	u32 prot;
+	int i;
+	bool found;
+	int last_index;
+	int err;
+	u8 pf_num;
+	struct mlx4_priv *priv = mlx4_priv(dev);
+	pf_num = (dev->caps.num_ports == 1) ? vep_num : (vep_num << 1) | (port - 1);
+	s_steer = &mlx4_priv(dev)->steer[pf_num];
+
+	mutex_lock(&priv->mcg_table.mutex);
+
+	if (get_promisc_qp(dev, pf_num, steer, qpn)) {
+		err = 0;  /* Noting to do, already exists */
+		goto out_mutex;
+	}
+
+	pqp = kmalloc(sizeof *pqp, GFP_KERNEL);
+	if (!pqp) {
+		err = -ENOMEM;
+		goto out_mutex;
+	}
+	pqp->qpn = qpn;
+
+	mailbox = mlx4_alloc_cmd_mailbox(dev);
+	if (IS_ERR(mailbox)) {
+		err = -ENOMEM;
+		goto out_alloc;
+	}
+	mgm = mailbox->buf;
+
+	/* the promisc qp needs to be added for each one of the steering
+	 * entries, if it already exists, needs to be added as a duplicate
+	 * for this entry */
+	list_for_each_entry(entry, &s_steer->steer_entries[steer], list) {
+		err = mlx4_READ_ENTRY(dev, entry->index, mailbox);
+		if (err)
+			goto out_mailbox;
+
+		members_count = be32_to_cpu(mgm->members_count) & 0xffffff;
+		prot = be32_to_cpu(mgm->members_count) >> 30;
+		found = false;
+		for (i = 0; i < members_count; i++) {
+			if ((be32_to_cpu(mgm->qp[i]) & MGM_QPN_MASK) == qpn) {
+				/* Entry already exists, add to duplicates */
+				dqp = kmalloc(sizeof *dqp, GFP_KERNEL);
+				if (!dqp)
+					goto out_mailbox;
+				dqp->qpn = qpn;
+				list_add_tail(&dqp->list, &entry->duplicates);
+				found = true;
+			}
+		}
+		if (!found) {
+			/* Need to add the qpn to mgm */
+			if (members_count == MLX4_QP_PER_MGM) {
+				/* entry is full */
+				err = -ENOMEM;
+				goto out_mailbox;
+			}
+			mgm->qp[members_count++] = cpu_to_be32(qpn & MGM_QPN_MASK);
+			mgm->members_count = cpu_to_be32(members_count | (prot << 30));
+			err = mlx4_WRITE_ENTRY(dev, entry->index, mailbox);
+			if (err)
+				goto out_mailbox;
+		}
+		last_index = entry->index;
+	}
+
+	/* add the new qpn to list of promisc qps */
+	list_add_tail(&pqp->list, &s_steer->promisc_qps[steer]);
+	/* now need to add all the promisc qps to default entry */
+	memset(mgm, 0, sizeof *mgm);
+	members_count = 0;
+	list_for_each_entry(dqp, &s_steer->promisc_qps[steer], list)
+		mgm->qp[members_count++] = cpu_to_be32(dqp->qpn & MGM_QPN_MASK);
+	mgm->members_count = cpu_to_be32(members_count | MLX4_PROT_ETH << 30);
+
+	err = mlx4_WRITE_PROMISC(dev, vep_num, port, steer, mailbox);
+	if (err)
+		goto out_list;
+
+	mlx4_free_cmd_mailbox(dev, mailbox);
+	mutex_unlock(&priv->mcg_table.mutex);
+	return 0;
+
+out_list:
+	list_del(&pqp->list);
+out_mailbox:
+	mlx4_free_cmd_mailbox(dev, mailbox);
+out_alloc:
+	kfree(pqp);
+out_mutex:
+	mutex_unlock(&priv->mcg_table.mutex);
+	return err;
+}
+
+static int remove_promisc_qp(struct mlx4_dev *dev, u8 vep_num, u8 port,
+			     enum mlx4_steer_type steer, u32 qpn)
+{
+	struct mlx4_priv *priv = mlx4_priv(dev);
+	struct mlx4_steer *s_steer;
+	struct mlx4_cmd_mailbox *mailbox;
+	struct mlx4_mgm *mgm;
+	struct mlx4_steer_index *entry;
+	struct mlx4_promisc_qp *pqp;
+	struct mlx4_promisc_qp *dqp;
+	u32 members_count;
+	bool found;
+	bool back_to_list = false;
+	int loc, i;
+	int err;
+	u8 pf_num;
+
+	pf_num = (dev->caps.num_ports == 1) ? vep_num : (vep_num << 1) | (port - 1);
+	s_steer = &mlx4_priv(dev)->steer[pf_num];
+	mutex_lock(&priv->mcg_table.mutex);
+
+	pqp = get_promisc_qp(dev, pf_num, steer, qpn);
+	if (unlikely(!pqp)) {
+		mlx4_warn(dev, "QP %x is not promiscuous QP\n", qpn);
+		/* nothing to do */
+		err = 0;
+		goto out_mutex;
+	}
+
+	/*remove from list of promisc qps */
+	list_del(&pqp->list);
+
+	/* set the default entry not to include the removed one */
+	mailbox = mlx4_alloc_cmd_mailbox(dev);
+	if (IS_ERR(mailbox)) {
+		err = -ENOMEM;
+		back_to_list = true;
+		goto out_list;
+	}
+	mgm = mailbox->buf;
+	members_count = 0;
+	list_for_each_entry(dqp, &s_steer->promisc_qps[steer], list)
+		mgm->qp[members_count++] = cpu_to_be32(dqp->qpn & MGM_QPN_MASK);
+	mgm->members_count = cpu_to_be32(members_count | MLX4_PROT_ETH << 30);
+
+	err = mlx4_WRITE_PROMISC(dev, vep_num, port, steer, mailbox);
+	if (err)
+		goto out_mailbox;
+
+	/* remove the qp from all the steering entries*/
+	list_for_each_entry(entry, &s_steer->steer_entries[steer], list) {
+		found = false;
+		list_for_each_entry(dqp, &entry->duplicates, list) {
+			if (dqp->qpn == qpn) {
+				found = true;
+				break;
+			}
+		}
+		if (found) {
+			/* a duplicate, no need to change the mgm,
+			 * only update the duplicates list */
+			list_del(&dqp->list);
+			kfree(dqp);
+		} else {
+			err = mlx4_READ_ENTRY(dev, entry->index, mailbox);
+				if (err)
+					goto out_mailbox;
+			members_count = be32_to_cpu(mgm->members_count) & 0xffffff;
+			for (loc = -1, i = 0; i < members_count; ++i)
+				if ((be32_to_cpu(mgm->qp[i]) & MGM_QPN_MASK) == qpn)
+					loc = i;
+
+			mgm->members_count = cpu_to_be32(--members_count |
+							 (MLX4_PROT_ETH << 30));
+			mgm->qp[loc] = mgm->qp[i - 1];
+			mgm->qp[i - 1] = 0;
+
+			err = mlx4_WRITE_ENTRY(dev, entry->index, mailbox);
+				if (err)
+					goto out_mailbox;
+		}
+
+	}
+
+out_mailbox:
+	mlx4_free_cmd_mailbox(dev, mailbox);
+out_list:
+	if (back_to_list)
+		list_add_tail(&pqp->list, &s_steer->promisc_qps[steer]);
+	else
+		kfree(pqp);
+out_mutex:
+	mutex_unlock(&priv->mcg_table.mutex);
+	return err;
+}
+
 /*
  * Caller must hold MCG table semaphore.  gid and mgm parameters must
  * be properly aligned for command interface.
@@ -94,15 +549,17 @@ static int mlx4_MGID_HASH(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox
  * If no AMGM exists for given gid, *index = -1, *prev = index of last
  * entry in hash chain and *mgm holds end of hash chain.
  */
-static int find_mgm(struct mlx4_dev *dev,
-		    u8 *gid, enum mlx4_protocol protocol,
-		    struct mlx4_cmd_mailbox *mgm_mailbox,
-		    u16 *hash, int *prev, int *index)
+static int find_entry(struct mlx4_dev *dev, u8 port,
+		      u8 *gid, enum mlx4_protocol prot,
+		      enum mlx4_steer_type steer,
+		      struct mlx4_cmd_mailbox *mgm_mailbox,
+		      u16 *hash, int *prev, int *index)
 {
 	struct mlx4_cmd_mailbox *mailbox;
 	struct mlx4_mgm *mgm = mgm_mailbox->buf;
 	u8 *mgid;
 	int err;
+	u8 op_mod = (prot == MLX4_PROT_ETH) ? !!(dev->caps.vep_mc_steering) : 0;
 
 	mailbox = mlx4_alloc_cmd_mailbox(dev);
 	if (IS_ERR(mailbox))
@@ -111,7 +568,7 @@ static int find_mgm(struct mlx4_dev *dev,
 
 	memcpy(mgid, gid, 16);
 
-	err = mlx4_MGID_HASH(dev, mailbox, hash);
+	err = mlx4_GID_HASH(dev, mailbox, hash, op_mod);
 	mlx4_free_cmd_mailbox(dev, mailbox);
 	if (err)
 		return err;
@@ -123,11 +580,11 @@ static int find_mgm(struct mlx4_dev *dev,
 	*prev  = -1;
 
 	do {
-		err = mlx4_READ_MCG(dev, *index, mgm_mailbox);
+		err = mlx4_READ_ENTRY(dev, *index, mgm_mailbox);
 		if (err)
 			return err;
 
-		if (!memcmp(mgm->gid, zero_gid, 16)) {
+		if (!(be32_to_cpu(mgm->members_count) & 0xffffff)) {
 			if (*index != *hash) {
 				mlx4_err(dev, "Found zero MGID in AMGM.\n");
 				err = -EINVAL;
@@ -136,7 +593,7 @@ static int find_mgm(struct mlx4_dev *dev,
 		}
 
 		if (!memcmp(mgm->gid, gid, 16) &&
-		    be32_to_cpu(mgm->members_count) >> 30 == protocol)
+		    be32_to_cpu(mgm->members_count) >> 30 == prot)
 			return err;
 
 		*prev = *index;
@@ -147,8 +604,9 @@ static int find_mgm(struct mlx4_dev *dev,
 	return err;
 }
 
-int mlx4_multicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
-			  int block_mcast_loopback, enum mlx4_protocol protocol)
+int mlx4_qp_attach_common(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
+			  int block_mcast_loopback, enum mlx4_protocol prot,
+			  enum mlx4_steer_type steer)
 {
 	struct mlx4_priv *priv = mlx4_priv(dev);
 	struct mlx4_cmd_mailbox *mailbox;
@@ -159,6 +617,8 @@ int mlx4_multicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
 	int link = 0;
 	int i;
 	int err;
+	u8 port = gid[5];
+	u8 new_entry = 0;
 
 	mailbox = mlx4_alloc_cmd_mailbox(dev);
 	if (IS_ERR(mailbox))
@@ -166,14 +626,16 @@ int mlx4_multicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
 	mgm = mailbox->buf;
 
 	mutex_lock(&priv->mcg_table.mutex);
-
-	err = find_mgm(dev, gid, protocol, mailbox, &hash, &prev, &index);
+	err = find_entry(dev, port, gid, prot, steer,
+			 mailbox, &hash, &prev, &index);
 	if (err)
 		goto out;
 
 	if (index != -1) {
-		if (!memcmp(mgm->gid, zero_gid, 16))
+		if (!(be32_to_cpu(mgm->members_count) & 0xffffff)) {
+			new_entry = 1;
 			memcpy(mgm->gid, gid, 16);
+		}
 	} else {
 		link = 1;
 
@@ -209,26 +671,34 @@ int mlx4_multicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
 	else
 		mgm->qp[members_count++] = cpu_to_be32(qp->qpn & MGM_QPN_MASK);
 
-	mgm->members_count = cpu_to_be32(members_count | (u32) protocol << 30);
+	mgm->members_count = cpu_to_be32(members_count | (u32) prot << 30);
 
-	err = mlx4_WRITE_MCG(dev, index, mailbox);
+	err = mlx4_WRITE_ENTRY(dev, index, mailbox);
 	if (err)
 		goto out;
 
 	if (!link)
 		goto out;
 
-	err = mlx4_READ_MCG(dev, prev, mailbox);
+	err = mlx4_READ_ENTRY(dev, prev, mailbox);
 	if (err)
 		goto out;
 
 	mgm->next_gid_index = cpu_to_be32(index << 6);
 
-	err = mlx4_WRITE_MCG(dev, prev, mailbox);
+	err = mlx4_WRITE_ENTRY(dev, prev, mailbox);
 	if (err)
 		goto out;
 
 out:
+	if (prot == MLX4_PROT_ETH) {
+		/* manage the steering entry for promisc mode */
+		if (new_entry)
+			new_steering_entry(dev, 0, port, steer, index, qp->qpn);
+		else
+			existing_steering_entry(dev, 0, port, steer,
+						index, qp->qpn);
+	}
 	if (err && link && index != -1) {
 		if (index < dev->caps.num_mgms)
 			mlx4_warn(dev, "Got AMGM index %d < %d",
@@ -242,10 +712,9 @@ out:
 	mlx4_free_cmd_mailbox(dev, mailbox);
 	return err;
 }
-EXPORT_SYMBOL_GPL(mlx4_multicast_attach);
 
-int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
-			  enum mlx4_protocol protocol)
+int mlx4_qp_detach_common(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
+			  enum mlx4_protocol prot, enum mlx4_steer_type steer)
 {
 	struct mlx4_priv *priv = mlx4_priv(dev);
 	struct mlx4_cmd_mailbox *mailbox;
@@ -255,6 +724,8 @@ int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
 	int prev, index;
 	int i, loc;
 	int err;
+	u8 port = gid[5];
+	bool removed_entry = false;
 
 	mailbox = mlx4_alloc_cmd_mailbox(dev);
 	if (IS_ERR(mailbox))
@@ -263,7 +734,8 @@ int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
 
 	mutex_lock(&priv->mcg_table.mutex);
 
-	err = find_mgm(dev, gid, protocol, mailbox, &hash, &prev, &index);
+	err = find_entry(dev, port, gid, prot, steer,
+			 mailbox, &hash, &prev, &index);
 	if (err)
 		goto out;
 
@@ -273,6 +745,11 @@ int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
 		goto out;
 	}
 
+	/* if this pq is also a promisc qp, it shouldn't be removed */
+	if (prot == MLX4_PROT_ETH &&
+	    check_duplicate_entry(dev, 0, port, steer, index, qp->qpn))
+		goto out;
+
 	members_count = be32_to_cpu(mgm->members_count) & 0xffffff;
 	for (loc = -1, i = 0; i < members_count; ++i)
 		if ((be32_to_cpu(mgm->qp[i]) & MGM_QPN_MASK) == qp->qpn)
@@ -285,26 +762,31 @@ int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
 	}
 
 
-	mgm->members_count = cpu_to_be32(--members_count | (u32) protocol << 30);
+	mgm->members_count = cpu_to_be32(--members_count | (u32) prot << 30);
 	mgm->qp[loc]       = mgm->qp[i - 1];
 	mgm->qp[i - 1]     = 0;
 
-	if (i != 1) {
-		err = mlx4_WRITE_MCG(dev, index, mailbox);
+	if (prot == MLX4_PROT_ETH)
+		removed_entry = can_remove_steering_entry(dev, 0, port, steer, index, qp->qpn);
+	if (i != 1 && (prot != MLX4_PROT_ETH || !removed_entry)) {
+		err = mlx4_WRITE_ENTRY(dev, index, mailbox);
 		goto out;
 	}
 
+	/* We are going to delete the entry, members count should be 0 */
+	mgm->members_count = cpu_to_be32((u32) prot << 30);
+
 	if (prev == -1) {
 		/* Remove entry from MGM */
 		int amgm_index = be32_to_cpu(mgm->next_gid_index) >> 6;
 		if (amgm_index) {
-			err = mlx4_READ_MCG(dev, amgm_index, mailbox);
+			err = mlx4_READ_ENTRY(dev, amgm_index, mailbox);
 			if (err)
 				goto out;
 		} else
 			memset(mgm->gid, 0, 16);
 
-		err = mlx4_WRITE_MCG(dev, index, mailbox);
+		err = mlx4_WRITE_ENTRY(dev, index, mailbox);
 		if (err)
 			goto out;
 
@@ -319,13 +801,13 @@ int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
 	} else {
 		/* Remove entry from AMGM */
 		int cur_next_index = be32_to_cpu(mgm->next_gid_index) >> 6;
-		err = mlx4_READ_MCG(dev, prev, mailbox);
+		err = mlx4_READ_ENTRY(dev, prev, mailbox);
 		if (err)
 			goto out;
 
 		mgm->next_gid_index = cpu_to_be32(cur_next_index << 6);
 
-		err = mlx4_WRITE_MCG(dev, prev, mailbox);
+		err = mlx4_WRITE_ENTRY(dev, prev, mailbox);
 		if (err)
 			goto out;
 
@@ -343,8 +825,85 @@ out:
 	mlx4_free_cmd_mailbox(dev, mailbox);
 	return err;
 }
+
+
+int mlx4_multicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
+			  int block_mcast_loopback, enum mlx4_protocol prot)
+{
+	enum mlx4_steer_type steer;
+
+	steer = (is_valid_ether_addr(&gid[10])) ? MLX4_UC_STEER : MLX4_MC_STEER;
+
+	if (prot == MLX4_PROT_ETH && !dev->caps.vep_mc_steering)
+		return 0;
+
+	if (prot == MLX4_PROT_ETH)
+		gid[7] |= (steer << 1);
+
+	return mlx4_qp_attach_common(dev, qp, gid,
+				     block_mcast_loopback, prot,
+				     steer);
+}
+EXPORT_SYMBOL_GPL(mlx4_multicast_attach);
+
+int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
+			  enum mlx4_protocol prot)
+{
+	enum mlx4_steer_type steer;
+
+	steer = (is_valid_ether_addr(&gid[10])) ? MLX4_UC_STEER : MLX4_MC_STEER;
+
+	if (prot == MLX4_PROT_ETH && !dev->caps.vep_mc_steering)
+		return 0;
+
+	if (prot == MLX4_PROT_ETH) {
+		gid[7] |= (steer << 1);
+	}
+
+	return mlx4_qp_detach_common(dev, qp, gid, prot, steer);
+}
 EXPORT_SYMBOL_GPL(mlx4_multicast_detach);
 
+
+int mlx4_multicast_promisc_add(struct mlx4_dev *dev, u32 qpn, u8 port)
+{
+	if (!dev->caps.vep_mc_steering)
+		return 0;
+
+
+	return add_promisc_qp(dev, 0, port, MLX4_MC_STEER, qpn);
+}
+EXPORT_SYMBOL_GPL(mlx4_multicast_promisc_add);
+
+int mlx4_multicast_promisc_remove(struct mlx4_dev *dev, u32 qpn, u8 port)
+{
+	if (!dev->caps.vep_mc_steering)
+		return 0;
+
+
+	return remove_promisc_qp(dev, 0, port, MLX4_MC_STEER, qpn);
+}
+EXPORT_SYMBOL_GPL(mlx4_multicast_promisc_remove);
+
+int mlx4_unicast_promisc_add(struct mlx4_dev *dev, u32 qpn, u8 port)
+{
+	if (!dev->caps.vep_mc_steering)
+		return 0;
+
+
+	return add_promisc_qp(dev, 0, port, MLX4_UC_STEER, qpn);
+}
+EXPORT_SYMBOL_GPL(mlx4_unicast_promisc_add);
+
+int mlx4_unicast_promisc_remove(struct mlx4_dev *dev, u32 qpn, u8 port)
+{
+	if (!dev->caps.vep_mc_steering)
+		return 0;
+
+	return remove_promisc_qp(dev, 0, port, MLX4_UC_STEER, qpn);
+}
+EXPORT_SYMBOL_GPL(mlx4_unicast_promisc_remove);
+
 int mlx4_init_mcg_table(struct mlx4_dev *dev)
 {
 	struct mlx4_priv *priv = mlx4_priv(dev);
diff --git a/drivers/net/mlx4/mlx4.h b/drivers/net/mlx4/mlx4.h
index 0da5bb7285b4..c1e0e5f1bcdb 100644
--- a/drivers/net/mlx4/mlx4.h
+++ b/drivers/net/mlx4/mlx4.h
@@ -105,6 +105,7 @@ struct mlx4_bitmap {
 	u32			max;
 	u32                     reserved_top;
 	u32			mask;
+	u32			avail;
 	spinlock_t		lock;
 	unsigned long	       *table;
 };
@@ -162,6 +163,27 @@ struct mlx4_fw {
 	u8			catas_bar;
 };
 
+#define MGM_QPN_MASK       0x00FFFFFF
+#define MGM_BLCK_LB_BIT    30
+
+struct mlx4_promisc_qp {
+	struct list_head list;
+	u32 qpn;
+};
+
+struct mlx4_steer_index {
+	struct list_head list;
+	unsigned int index;
+	struct list_head duplicates;
+};
+
+struct mlx4_mgm {
+	__be32			next_gid_index;
+	__be32			members_count;
+	u32			reserved[2];
+	u8			gid[16];
+	__be32			qp[MLX4_QP_PER_MGM];
+};
 struct mlx4_cmd {
 	struct pci_pool	       *pool;
 	void __iomem	       *hcr;
@@ -265,6 +287,10 @@ struct mlx4_vlan_table {
 	int			max;
 };
 
+struct mlx4_mac_entry {
+	u64 mac;
+};
+
 struct mlx4_port_info {
 	struct mlx4_dev	       *dev;
 	int			port;
@@ -272,7 +298,9 @@ struct mlx4_port_info {
 	struct device_attribute port_attr;
 	enum mlx4_port_type	tmp_type;
 	struct mlx4_mac_table	mac_table;
+	struct radix_tree_root	mac_tree;
 	struct mlx4_vlan_table	vlan_table;
+	int			base_qpn;
 };
 
 struct mlx4_sense {
@@ -282,6 +310,17 @@ struct mlx4_sense {
 	struct delayed_work	sense_poll;
 };
 
+struct mlx4_msix_ctl {
+	u64		pool_bm;
+	spinlock_t	pool_lock;
+};
+
+struct mlx4_steer {
+	struct list_head promisc_qps[MLX4_NUM_STEERS];
+	struct list_head steer_entries[MLX4_NUM_STEERS];
+	struct list_head high_prios;
+};
+
 struct mlx4_priv {
 	struct mlx4_dev		dev;
 
@@ -313,6 +352,11 @@ struct mlx4_priv {
 	struct mlx4_port_info	port[MLX4_MAX_PORTS + 1];
 	struct mlx4_sense       sense;
 	struct mutex		port_mutex;
+	struct mlx4_msix_ctl	msix_ctl;
+	struct mlx4_steer	*steer;
+	struct list_head	bf_list;
+	struct mutex		bf_mutex;
+	struct io_mapping	*bf_mapping;
 };
 
 static inline struct mlx4_priv *mlx4_priv(struct mlx4_dev *dev)
@@ -328,6 +372,7 @@ u32 mlx4_bitmap_alloc(struct mlx4_bitmap *bitmap);
 void mlx4_bitmap_free(struct mlx4_bitmap *bitmap, u32 obj);
 u32 mlx4_bitmap_alloc_range(struct mlx4_bitmap *bitmap, int cnt, int align);
 void mlx4_bitmap_free_range(struct mlx4_bitmap *bitmap, u32 obj, int cnt);
+u32 mlx4_bitmap_avail(struct mlx4_bitmap *bitmap);
 int mlx4_bitmap_init(struct mlx4_bitmap *bitmap, u32 num, u32 mask,
 		     u32 reserved_bot, u32 resetrved_top);
 void mlx4_bitmap_cleanup(struct mlx4_bitmap *bitmap);
@@ -403,4 +448,9 @@ void mlx4_init_vlan_table(struct mlx4_dev *dev, struct mlx4_vlan_table *table);
 int mlx4_SET_PORT(struct mlx4_dev *dev, u8 port);
 int mlx4_get_port_ib_caps(struct mlx4_dev *dev, u8 port, __be32 *caps);
 
+int mlx4_qp_detach_common(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
+			  enum mlx4_protocol prot, enum mlx4_steer_type steer);
+int mlx4_qp_attach_common(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
+			  int block_mcast_loopback, enum mlx4_protocol prot,
+			  enum mlx4_steer_type steer);
 #endif /* MLX4_H */
diff --git a/drivers/net/mlx4/mlx4_en.h b/drivers/net/mlx4/mlx4_en.h
index dfed6a07c2d7..e30f6099c0de 100644
--- a/drivers/net/mlx4/mlx4_en.h
+++ b/drivers/net/mlx4/mlx4_en.h
@@ -49,8 +49,8 @@
 #include "en_port.h"
 
 #define DRV_NAME	"mlx4_en"
-#define DRV_VERSION	"1.5.1.6"
-#define DRV_RELDATE	"August 2010"
+#define DRV_VERSION	"1.5.4.1"
+#define DRV_RELDATE	"March 2011"
 
 #define MLX4_EN_MSG_LEVEL	(NETIF_MSG_LINK | NETIF_MSG_IFDOWN)
 
@@ -62,6 +62,7 @@
 #define MLX4_EN_PAGE_SHIFT	12
 #define MLX4_EN_PAGE_SIZE	(1 << MLX4_EN_PAGE_SHIFT)
 #define MAX_RX_RINGS		16
+#define MIN_RX_RINGS		4
 #define TXBB_SIZE		64
 #define HEADROOM		(2048 / TXBB_SIZE + 1)
 #define STAMP_STRIDE		64
@@ -124,6 +125,7 @@ enum {
 #define MLX4_EN_RX_SIZE_THRESH		1024
 #define MLX4_EN_RX_RATE_THRESH		(1000000 / MLX4_EN_RX_COAL_TIME_HIGH)
 #define MLX4_EN_SAMPLE_INTERVAL		0
+#define MLX4_EN_AVG_PKT_SMALL		256
 
 #define MLX4_EN_AUTO_CONF	0xffff
 
@@ -214,6 +216,9 @@ struct mlx4_en_tx_desc {
 
 #define MLX4_EN_USE_SRQ		0x01000000
 
+#define MLX4_EN_CX3_LOW_ID	0x1000
+#define MLX4_EN_CX3_HIGH_ID	0x1005
+
 struct mlx4_en_rx_alloc {
 	struct page *page;
 	u16 offset;
@@ -243,6 +248,8 @@ struct mlx4_en_tx_ring {
 	unsigned long bytes;
 	unsigned long packets;
 	spinlock_t comp_lock;
+	struct mlx4_bf bf;
+	bool bf_enabled;
 };
 
 struct mlx4_en_rx_desc {
@@ -453,6 +460,7 @@ struct mlx4_en_priv {
 	struct mlx4_en_rss_map rss_map;
 	u32 flags;
 #define MLX4_EN_FLAG_PROMISC	0x1
+#define MLX4_EN_FLAG_MC_PROMISC	0x2
 	u32 tx_ring_num;
 	u32 rx_ring_num;
 	u32 rx_skb_size;
@@ -461,6 +469,7 @@ struct mlx4_en_priv {
 	u16 log_rx_info;
 
 	struct mlx4_en_tx_ring tx_ring[MAX_TX_RINGS];
+	int tx_vector;
 	struct mlx4_en_rx_ring rx_ring[MAX_RX_RINGS];
 	struct mlx4_en_cq tx_cq[MAX_TX_RINGS];
 	struct mlx4_en_cq rx_cq[MAX_RX_RINGS];
@@ -476,6 +485,13 @@ struct mlx4_en_priv {
 	int mc_addrs_cnt;
 	struct mlx4_en_stat_out_mbox hw_stats;
 	int vids[128];
+	bool wol;
+};
+
+enum mlx4_en_wol {
+	MLX4_EN_WOL_MAGIC = (1ULL << 61),
+	MLX4_EN_WOL_ENABLED = (1ULL << 62),
+	MLX4_EN_WOL_DO_MODIFY = (1ULL << 63),
 };
 
 
@@ -486,12 +502,13 @@ int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port,
 int mlx4_en_start_port(struct net_device *dev);
 void mlx4_en_stop_port(struct net_device *dev);
 
-void mlx4_en_free_resources(struct mlx4_en_priv *priv);
+void mlx4_en_free_resources(struct mlx4_en_priv *priv, bool reserve_vectors);
 int mlx4_en_alloc_resources(struct mlx4_en_priv *priv);
 
 int mlx4_en_create_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq,
 		      int entries, int ring, enum cq_type mode);
-void mlx4_en_destroy_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq);
+void mlx4_en_destroy_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq,
+			bool reserve_vectors);
 int mlx4_en_activate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq);
 void mlx4_en_deactivate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq);
 int mlx4_en_set_cq_moder(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq);
@@ -503,7 +520,7 @@ u16 mlx4_en_select_queue(struct net_device *dev, struct sk_buff *skb);
 netdev_tx_t mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev);
 
 int mlx4_en_create_tx_ring(struct mlx4_en_priv *priv, struct mlx4_en_tx_ring *ring,
-			   u32 size, u16 stride);
+			   int qpn, u32 size, u16 stride);
 void mlx4_en_destroy_tx_ring(struct mlx4_en_priv *priv, struct mlx4_en_tx_ring *ring);
 int mlx4_en_activate_tx_ring(struct mlx4_en_priv *priv,
 			     struct mlx4_en_tx_ring *ring,
diff --git a/drivers/net/mlx4/pd.c b/drivers/net/mlx4/pd.c
index c4988d6bd5b2..1286b886dcea 100644
--- a/drivers/net/mlx4/pd.c
+++ b/drivers/net/mlx4/pd.c
@@ -32,12 +32,17 @@
  */
 
 #include <linux/errno.h>
+#include <linux/io-mapping.h>
 
 #include <asm/page.h>
 
 #include "mlx4.h"
 #include "icm.h"
 
+enum {
+	MLX4_NUM_RESERVED_UARS = 8
+};
+
 int mlx4_pd_alloc(struct mlx4_dev *dev, u32 *pdn)
 {
 	struct mlx4_priv *priv = mlx4_priv(dev);
@@ -77,6 +82,7 @@ int mlx4_uar_alloc(struct mlx4_dev *dev, struct mlx4_uar *uar)
 		return -ENOMEM;
 
 	uar->pfn = (pci_resource_start(dev->pdev, 2) >> PAGE_SHIFT) + uar->index;
+	uar->map = NULL;
 
 	return 0;
 }
@@ -88,6 +94,102 @@ void mlx4_uar_free(struct mlx4_dev *dev, struct mlx4_uar *uar)
 }
 EXPORT_SYMBOL_GPL(mlx4_uar_free);
 
+int mlx4_bf_alloc(struct mlx4_dev *dev, struct mlx4_bf *bf)
+{
+	struct mlx4_priv *priv = mlx4_priv(dev);
+	struct mlx4_uar *uar;
+	int err = 0;
+	int idx;
+
+	if (!priv->bf_mapping)
+		return -ENOMEM;
+
+	mutex_lock(&priv->bf_mutex);
+	if (!list_empty(&priv->bf_list))
+		uar = list_entry(priv->bf_list.next, struct mlx4_uar, bf_list);
+	else {
+		if (mlx4_bitmap_avail(&priv->uar_table.bitmap) < MLX4_NUM_RESERVED_UARS) {
+			err = -ENOMEM;
+			goto out;
+		}
+		uar = kmalloc(sizeof *uar, GFP_KERNEL);
+		if (!uar) {
+			err = -ENOMEM;
+			goto out;
+		}
+		err = mlx4_uar_alloc(dev, uar);
+		if (err)
+			goto free_kmalloc;
+
+		uar->map = ioremap(uar->pfn << PAGE_SHIFT, PAGE_SIZE);
+		if (!uar->map) {
+			err = -ENOMEM;
+			goto free_uar;
+		}
+
+		uar->bf_map = io_mapping_map_wc(priv->bf_mapping, uar->index << PAGE_SHIFT);
+		if (!uar->bf_map) {
+			err = -ENOMEM;
+			goto unamp_uar;
+		}
+		uar->free_bf_bmap = 0;
+		list_add(&uar->bf_list, &priv->bf_list);
+	}
+
+	bf->uar = uar;
+	idx = ffz(uar->free_bf_bmap);
+	uar->free_bf_bmap |= 1 << idx;
+	bf->uar = uar;
+	bf->offset = 0;
+	bf->buf_size = dev->caps.bf_reg_size / 2;
+	bf->reg = uar->bf_map + idx * dev->caps.bf_reg_size;
+	if (uar->free_bf_bmap == (1 << dev->caps.bf_regs_per_page) - 1)
+		list_del_init(&uar->bf_list);
+
+	goto out;
+
+unamp_uar:
+	bf->uar = NULL;
+	iounmap(uar->map);
+
+free_uar:
+	mlx4_uar_free(dev, uar);
+
+free_kmalloc:
+	kfree(uar);
+
+out:
+	mutex_unlock(&priv->bf_mutex);
+	return err;
+}
+EXPORT_SYMBOL_GPL(mlx4_bf_alloc);
+
+void mlx4_bf_free(struct mlx4_dev *dev, struct mlx4_bf *bf)
+{
+	struct mlx4_priv *priv = mlx4_priv(dev);
+	int idx;
+
+	if (!bf->uar || !bf->uar->bf_map)
+		return;
+
+	mutex_lock(&priv->bf_mutex);
+	idx = (bf->reg - bf->uar->bf_map) / dev->caps.bf_reg_size;
+	bf->uar->free_bf_bmap &= ~(1 << idx);
+	if (!bf->uar->free_bf_bmap) {
+		if (!list_empty(&bf->uar->bf_list))
+			list_del(&bf->uar->bf_list);
+
+		io_mapping_unmap(bf->uar->bf_map);
+		iounmap(bf->uar->map);
+		mlx4_uar_free(dev, bf->uar);
+		kfree(bf->uar);
+	} else if (list_empty(&bf->uar->bf_list))
+		list_add(&bf->uar->bf_list, &priv->bf_list);
+
+	mutex_unlock(&priv->bf_mutex);
+}
+EXPORT_SYMBOL_GPL(mlx4_bf_free);
+
 int mlx4_init_uar_table(struct mlx4_dev *dev)
 {
 	if (dev->caps.num_uars <= 128) {
diff --git a/drivers/net/mlx4/port.c b/drivers/net/mlx4/port.c
index 451339559bdc..8856659fb43c 100644
--- a/drivers/net/mlx4/port.c
+++ b/drivers/net/mlx4/port.c
@@ -90,12 +90,79 @@ static int mlx4_set_port_mac_table(struct mlx4_dev *dev, u8 port,
 	return err;
 }
 
-int mlx4_register_mac(struct mlx4_dev *dev, u8 port, u64 mac, int *index)
+static int mlx4_uc_steer_add(struct mlx4_dev *dev, u8 port,
+			     u64 mac, int *qpn, u8 reserve)
 {
-	struct mlx4_mac_table *table = &mlx4_priv(dev)->port[port].mac_table;
+	struct mlx4_qp qp;
+	u8 gid[16] = {0};
+	int err;
+
+	if (reserve) {
+		err = mlx4_qp_reserve_range(dev, 1, 1, qpn);
+		if (err) {
+			mlx4_err(dev, "Failed to reserve qp for mac registration\n");
+			return err;
+		}
+	}
+	qp.qpn = *qpn;
+
+	mac &= 0xffffffffffffULL;
+	mac = cpu_to_be64(mac << 16);
+	memcpy(&gid[10], &mac, ETH_ALEN);
+	gid[5] = port;
+	gid[7] = MLX4_UC_STEER << 1;
+
+	err = mlx4_qp_attach_common(dev, &qp, gid, 0,
+				    MLX4_PROT_ETH, MLX4_UC_STEER);
+	if (err && reserve)
+		mlx4_qp_release_range(dev, *qpn, 1);
+
+	return err;
+}
+
+static void mlx4_uc_steer_release(struct mlx4_dev *dev, u8 port,
+				  u64 mac, int qpn, u8 free)
+{
+	struct mlx4_qp qp;
+	u8 gid[16] = {0};
+
+	qp.qpn = qpn;
+	mac &= 0xffffffffffffULL;
+	mac = cpu_to_be64(mac << 16);
+	memcpy(&gid[10], &mac, ETH_ALEN);
+	gid[5] = port;
+	gid[7] = MLX4_UC_STEER << 1;
+
+	mlx4_qp_detach_common(dev, &qp, gid, MLX4_PROT_ETH, MLX4_UC_STEER);
+	if (free)
+		mlx4_qp_release_range(dev, qpn, 1);
+}
+
+int mlx4_register_mac(struct mlx4_dev *dev, u8 port, u64 mac, int *qpn, u8 wrap)
+{
+	struct mlx4_port_info *info = &mlx4_priv(dev)->port[port];
+	struct mlx4_mac_table *table = &info->mac_table;
+	struct mlx4_mac_entry *entry;
 	int i, err = 0;
 	int free = -1;
 
+	if (dev->caps.vep_uc_steering) {
+		err = mlx4_uc_steer_add(dev, port, mac, qpn, 1);
+		if (!err) {
+			entry = kmalloc(sizeof *entry, GFP_KERNEL);
+			if (!entry) {
+				mlx4_uc_steer_release(dev, port, mac, *qpn, 1);
+				return -ENOMEM;
+			}
+			entry->mac = mac;
+			err = radix_tree_insert(&info->mac_tree, *qpn, entry);
+			if (err) {
+				mlx4_uc_steer_release(dev, port, mac, *qpn, 1);
+				return err;
+			}
+		} else
+			return err;
+	}
 	mlx4_dbg(dev, "Registering MAC: 0x%llx\n", (unsigned long long) mac);
 	mutex_lock(&table->mutex);
 	for (i = 0; i < MLX4_MAX_MAC_NUM - 1; i++) {
@@ -105,8 +172,7 @@ int mlx4_register_mac(struct mlx4_dev *dev, u8 port, u64 mac, int *index)
 		}
 
 		if (mac == (MLX4_MAC_MASK & be64_to_cpu(table->entries[i]))) {
-			/* MAC already registered, increase refernce count */
-			*index = i;
+			/* MAC already registered, increase references count */
 			++table->refs[i];
 			goto out;
 		}
@@ -137,7 +203,8 @@ int mlx4_register_mac(struct mlx4_dev *dev, u8 port, u64 mac, int *index)
 		goto out;
 	}
 
-	*index = free;
+	if (!dev->caps.vep_uc_steering)
+		*qpn = info->base_qpn + free;
 	++table->total;
 out:
 	mutex_unlock(&table->mutex);
@@ -145,20 +212,52 @@ out:
 }
 EXPORT_SYMBOL_GPL(mlx4_register_mac);
 
-void mlx4_unregister_mac(struct mlx4_dev *dev, u8 port, int index)
+static int validate_index(struct mlx4_dev *dev,
+			  struct mlx4_mac_table *table, int index)
 {
-	struct mlx4_mac_table *table = &mlx4_priv(dev)->port[port].mac_table;
+	int err = 0;
 
-	mutex_lock(&table->mutex);
-	if (!table->refs[index]) {
-		mlx4_warn(dev, "No MAC entry for index %d\n", index);
-		goto out;
+	if (index < 0 || index >= table->max || !table->entries[index]) {
+		mlx4_warn(dev, "No valid Mac entry for the given index\n");
+		err = -EINVAL;
 	}
-	if (--table->refs[index]) {
-		mlx4_warn(dev, "Have more references for index %d,"
-			  "no need to modify MAC table\n", index);
-		goto out;
+	return err;
+}
+
+static int find_index(struct mlx4_dev *dev,
+		      struct mlx4_mac_table *table, u64 mac)
+{
+	int i;
+	for (i = 0; i < MLX4_MAX_MAC_NUM; i++) {
+		if (mac == (MLX4_MAC_MASK & be64_to_cpu(table->entries[i])))
+			return i;
 	}
+	/* Mac not found */
+	return -EINVAL;
+}
+
+void mlx4_unregister_mac(struct mlx4_dev *dev, u8 port, int qpn)
+{
+	struct mlx4_port_info *info = &mlx4_priv(dev)->port[port];
+	struct mlx4_mac_table *table = &info->mac_table;
+	int index = qpn - info->base_qpn;
+	struct mlx4_mac_entry *entry;
+
+	if (dev->caps.vep_uc_steering) {
+		entry = radix_tree_lookup(&info->mac_tree, qpn);
+		if (entry) {
+			mlx4_uc_steer_release(dev, port, entry->mac, qpn, 1);
+			radix_tree_delete(&info->mac_tree, qpn);
+			index = find_index(dev, table, entry->mac);
+			kfree(entry);
+		}
+	}
+
+	mutex_lock(&table->mutex);
+
+	if (validate_index(dev, table, index))
+		goto out;
+
 	table->entries[index] = 0;
 	mlx4_set_port_mac_table(dev, port, table->entries);
 	--table->total;
@@ -167,6 +266,44 @@ out:
 }
 EXPORT_SYMBOL_GPL(mlx4_unregister_mac);
 
+int mlx4_replace_mac(struct mlx4_dev *dev, u8 port, int qpn, u64 new_mac, u8 wrap)
+{
+	struct mlx4_port_info *info = &mlx4_priv(dev)->port[port];
+	struct mlx4_mac_table *table = &info->mac_table;
+	int index = qpn - info->base_qpn;
+	struct mlx4_mac_entry *entry;
+	int err;
+
+	if (dev->caps.vep_uc_steering) {
+		entry = radix_tree_lookup(&info->mac_tree, qpn);
+		if (!entry)
+			return -EINVAL;
+		index = find_index(dev, table, entry->mac);
+		mlx4_uc_steer_release(dev, port, entry->mac, qpn, 0);
+		entry->mac = new_mac;
+		err = mlx4_uc_steer_add(dev, port, entry->mac, &qpn, 0);
+		if (err || index < 0)
+			return err;
+	}
+
+	mutex_lock(&table->mutex);
+
+	err = validate_index(dev, table, index);
+	if (err)
+		goto out;
+
+	table->entries[index] = cpu_to_be64(new_mac | MLX4_MAC_VALID);
+
+	err = mlx4_set_port_mac_table(dev, port, table->entries);
+	if (unlikely(err)) {
+		mlx4_err(dev, "Failed adding MAC: 0x%llx\n", (unsigned long long) new_mac);
+		table->entries[index] = 0;
+	}
+out:
+	mutex_unlock(&table->mutex);
+	return err;
+}
+EXPORT_SYMBOL_GPL(mlx4_replace_mac);
 static int mlx4_set_port_vlan_table(struct mlx4_dev *dev, u8 port,
 				    __be32 *entries)
 {
@@ -223,7 +360,7 @@ int mlx4_register_vlan(struct mlx4_dev *dev, u8 port, u16 vlan, int *index)
 		if (table->refs[i] &&
 		    (vlan == (MLX4_VLAN_MASK &
 			      be32_to_cpu(table->entries[i])))) {
-			/* Vlan already registered, increase refernce count */
+			/* Vlan already registered, increase references count */
 			*index = i;
 			++table->refs[i];
 			goto out;
diff --git a/drivers/net/mlx4/profile.c b/drivers/net/mlx4/profile.c
index e749f82865fe..b967647d0c76 100644
--- a/drivers/net/mlx4/profile.c
+++ b/drivers/net/mlx4/profile.c
@@ -107,9 +107,7 @@ u64 mlx4_make_profile(struct mlx4_dev *dev,
 	profile[MLX4_RES_AUXC].num    = request->num_qp;
 	profile[MLX4_RES_SRQ].num     = request->num_srq;
 	profile[MLX4_RES_CQ].num      = request->num_cq;
-	profile[MLX4_RES_EQ].num      = min_t(unsigned, dev_cap->max_eqs,
-					      dev_cap->reserved_eqs +
-					      num_possible_cpus() + 1);
+	profile[MLX4_RES_EQ].num      = min_t(unsigned, dev_cap->max_eqs, MAX_MSIX);
 	profile[MLX4_RES_DMPT].num    = request->num_mpt;
 	profile[MLX4_RES_CMPT].num    = MLX4_NUM_CMPTS;
 	profile[MLX4_RES_MTT].num     = request->num_mtt;
diff --git a/drivers/net/myri10ge/myri10ge.c b/drivers/net/myri10ge/myri10ge.c
index a7f2eed9a08a..1446de59ae53 100644
--- a/drivers/net/myri10ge/myri10ge.c
+++ b/drivers/net/myri10ge/myri10ge.c
@@ -1312,17 +1312,26 @@ myri10ge_unmap_rx_page(struct pci_dev *pdev,
 				 * page into an skb */
 
 static inline int
-myri10ge_rx_done(struct myri10ge_slice_state *ss, struct myri10ge_rx_buf *rx,
-		 int bytes, int len, __wsum csum)
+myri10ge_rx_done(struct myri10ge_slice_state *ss, int len, __wsum csum,
+		 int lro_enabled)
 {
 	struct myri10ge_priv *mgp = ss->mgp;
 	struct sk_buff *skb;
 	struct skb_frag_struct rx_frags[MYRI10GE_MAX_FRAGS_PER_FRAME];
-	int i, idx, hlen, remainder;
+	struct myri10ge_rx_buf *rx;
+	int i, idx, hlen, remainder, bytes;
 	struct pci_dev *pdev = mgp->pdev;
 	struct net_device *dev = mgp->dev;
 	u8 *va;
 
+	if (len <= mgp->small_bytes) {
+		rx = &ss->rx_small;
+		bytes = mgp->small_bytes;
+	} else {
+		rx = &ss->rx_big;
+		bytes = mgp->big_bytes;
+	}
+
 	len += MXGEFW_PAD;
 	idx = rx->cnt & rx->mask;
 	va = page_address(rx->info[idx].page) + rx->info[idx].page_offset;
@@ -1341,7 +1350,7 @@ myri10ge_rx_done(struct myri10ge_slice_state *ss, struct myri10ge_rx_buf *rx,
 		remainder -= MYRI10GE_ALLOC_SIZE;
 	}
 
-	if (dev->features & NETIF_F_LRO) {
+	if (lro_enabled) {
 		rx_frags[0].page_offset += MXGEFW_PAD;
 		rx_frags[0].size -= MXGEFW_PAD;
 		len -= MXGEFW_PAD;
@@ -1463,7 +1472,7 @@ myri10ge_clean_rx_done(struct myri10ge_slice_state *ss, int budget)
 {
 	struct myri10ge_rx_done *rx_done = &ss->rx_done;
 	struct myri10ge_priv *mgp = ss->mgp;
-	struct net_device *netdev = mgp->dev;
+
 	unsigned long rx_bytes = 0;
 	unsigned long rx_packets = 0;
 	unsigned long rx_ok;
@@ -1474,18 +1483,18 @@ myri10ge_clean_rx_done(struct myri10ge_slice_state *ss, int budget)
 	u16 length;
 	__wsum checksum;
 
+	/*
+	 * Prevent compiler from generating more than one ->features memory
+	 * access to avoid theoretical race condition with functions that
+	 * change NETIF_F_LRO flag at runtime.
+	 */
+	bool lro_enabled = ACCESS_ONCE(mgp->dev->features) & NETIF_F_LRO;
+
 	while (rx_done->entry[idx].length != 0 && work_done < budget) {
 		length = ntohs(rx_done->entry[idx].length);
 		rx_done->entry[idx].length = 0;
 		checksum = csum_unfold(rx_done->entry[idx].checksum);
-		if (length <= mgp->small_bytes)
-			rx_ok = myri10ge_rx_done(ss, &ss->rx_small,
-						 mgp->small_bytes,
-						 length, checksum);
-		else
-			rx_ok = myri10ge_rx_done(ss, &ss->rx_big,
-						 mgp->big_bytes,
-						 length, checksum);
+		rx_ok = myri10ge_rx_done(ss, length, checksum, lro_enabled);
 		rx_packets += rx_ok;
 		rx_bytes += rx_ok * (unsigned long)length;
 		cnt++;
@@ -1497,7 +1506,7 @@ myri10ge_clean_rx_done(struct myri10ge_slice_state *ss, int budget)
 	ss->stats.rx_packets += rx_packets;
 	ss->stats.rx_bytes += rx_bytes;
 
-	if (netdev->features & NETIF_F_LRO)
+	if (lro_enabled)
 		lro_flush_all(&rx_done->lro_mgr);
 
 	/* restock receive rings if needed */
@@ -3645,6 +3654,7 @@ static void myri10ge_free_slices(struct myri10ge_priv *mgp)
 			dma_free_coherent(&pdev->dev, bytes,
 					  ss->fw_stats, ss->fw_stats_bus);
 			ss->fw_stats = NULL;
+			netif_napi_del(&ss->napi);
 		}
 	}
 	kfree(mgp->ss);
@@ -3692,7 +3702,7 @@ abort:
 
 /*
  * This function determines the number of slices supported.
- * The number slices is the minumum of the number of CPUS,
+ * The number slices is the minimum of the number of CPUS,
  * the number of MSI-X irqs supported, the number of slices
  * supported by the firmware
  */
diff --git a/drivers/net/myri_sbus.c b/drivers/net/myri_sbus.c
index a761076b69c3..53aeea4b536e 100644
--- a/drivers/net/myri_sbus.c
+++ b/drivers/net/myri_sbus.c
@@ -1009,7 +1009,7 @@ static int __devinit myri_sbus_probe(struct platform_device *op)
 
 	/* Map in the MyriCOM register/localram set. */
 	if (mp->eeprom.cpuvers < CPUVERS_4_0) {
-		/* XXX Makes no sense, if control reg is non-existant this
+		/* XXX Makes no sense, if control reg is non-existent this
 		 * XXX driver cannot function at all... maybe pre-4.0 is
 		 * XXX only a valid version for PCI cards?  Ask feldy...
 		 */
diff --git a/drivers/net/natsemi.c b/drivers/net/natsemi.c
index 2fd39630b1e5..aa2813e06d00 100644
--- a/drivers/net/natsemi.c
+++ b/drivers/net/natsemi.c
@@ -203,7 +203,7 @@ skbuff at an offset of "+2", 16-byte aligning the IP header.
 IIId. Synchronization
 
 Most operations are synchronized on the np->lock irq spinlock, except the
-recieve and transmit paths which are synchronised using a combination of
+receive and transmit paths which are synchronised using a combination of
 hardware descriptor ownership, disabling interrupts and NAPI poll scheduling.
 
 IVb. References
@@ -726,7 +726,7 @@ static void move_int_phy(struct net_device *dev, int addr)
 	 * There are two addresses we must avoid:
 	 * - the address on the external phy that is used for transmission.
 	 * - the address that we want to access. User space can access phys
-	 *   on the mii bus with SIOCGMIIREG/SIOCSMIIREG, independant from the
+	 *   on the mii bus with SIOCGMIIREG/SIOCSMIIREG, independent from the
 	 *   phy that is used for transmission.
 	 */
 
@@ -1982,7 +1982,7 @@ static void init_ring(struct net_device *dev)
 
 	np->rx_head_desc = &np->rx_ring[0];
 
-	/* Please be carefull before changing this loop - at least gcc-2.95.1
+	/* Please be careful before changing this loop - at least gcc-2.95.1
 	 * miscompiles it otherwise.
 	 */
 	/* Initialize all Rx descriptors. */
diff --git a/drivers/net/netxen/netxen_nic_ethtool.c b/drivers/net/netxen/netxen_nic_ethtool.c
index 653d308e0f5d..3bdcc803ec68 100644
--- a/drivers/net/netxen/netxen_nic_ethtool.c
+++ b/drivers/net/netxen/netxen_nic_ethtool.c
@@ -871,7 +871,7 @@ static int netxen_nic_set_flags(struct net_device *netdev, u32 data)
 	struct netxen_adapter *adapter = netdev_priv(netdev);
 	int hw_lro;
 
-	if (data & ~ETH_FLAG_LRO)
+	if (ethtool_invalid_flags(netdev, data, ETH_FLAG_LRO))
 		return -EINVAL;
 
 	if (!(adapter->capabilities & NX_FW_CAPABILITY_HW_LRO))
diff --git a/drivers/net/netxen/netxen_nic_hdr.h b/drivers/net/netxen/netxen_nic_hdr.h
index d8bd73d7e296..dc1967c1f312 100644
--- a/drivers/net/netxen/netxen_nic_hdr.h
+++ b/drivers/net/netxen/netxen_nic_hdr.h
@@ -780,7 +780,7 @@ enum {
 
 /*
  * capabilities register, can be used to selectively enable/disable features
- * for backward compability
+ * for backward compatibility
  */
 #define CRB_NIC_CAPABILITIES_HOST	NETXEN_NIC_REG(0x1a8)
 #define CRB_NIC_MSI_MODE_HOST		NETXEN_NIC_REG(0x270)
diff --git a/drivers/net/ns83820.c b/drivers/net/ns83820.c
index a41b2cf4d917..6667e0667a88 100644
--- a/drivers/net/ns83820.c
+++ b/drivers/net/ns83820.c
@@ -512,7 +512,7 @@ static void ns83820_vlan_rx_register(struct net_device *ndev, struct vlan_group
 /* Packet Receiver
  *
  * The hardware supports linked lists of receive descriptors for
- * which ownership is transfered back and forth by means of an
+ * which ownership is transferred back and forth by means of an
  * ownership bit.  While the hardware does support the use of a
  * ring for receive descriptors, we only make use of a chain in
  * an attempt to reduce bus traffic under heavy load scenarios.
@@ -1147,7 +1147,7 @@ again:
 #ifdef NS83820_VLAN_ACCEL_SUPPORT
 	if(vlan_tx_tag_present(skb)) {
 		/* fetch the vlan tag info out of the
-		 * ancilliary data if the vlan code
+		 * ancillary data if the vlan code
 		 * is using hw vlan acceleration
 		 */
 		short tag = vlan_tx_tag_get(skb);
diff --git a/drivers/net/pch_gbe/pch_gbe.h b/drivers/net/pch_gbe/pch_gbe.h
index e1e33c80fb25..bf126e76fabf 100644
--- a/drivers/net/pch_gbe/pch_gbe.h
+++ b/drivers/net/pch_gbe/pch_gbe.h
@@ -351,7 +351,7 @@ struct pch_gbe_functions {
 };
 
 /**
- * struct pch_gbe_mac_info - MAC infomation
+ * struct pch_gbe_mac_info - MAC information
  * @addr[6]:		Store the MAC address
  * @fc:			Mode of flow control
  * @fc_autoneg:		Auto negotiation enable for flow control setting
@@ -375,7 +375,7 @@ struct pch_gbe_mac_info {
 };
 
 /**
- * struct pch_gbe_phy_info - PHY infomation
+ * struct pch_gbe_phy_info - PHY information
  * @addr:		PHY address
  * @id:			PHY's identifier
  * @revision:		PHY's revision
@@ -393,7 +393,7 @@ struct pch_gbe_phy_info {
 /*!
  * @ingroup Gigabit Ether driver Layer
  * @struct  pch_gbe_bus_info
- * @brief   Bus infomation
+ * @brief   Bus information
  */
 struct pch_gbe_bus_info {
 	u8 type;
@@ -404,7 +404,7 @@ struct pch_gbe_bus_info {
 /*!
  * @ingroup Gigabit Ether driver Layer
  * @struct  pch_gbe_hw
- * @brief   Hardware infomation
+ * @brief   Hardware information
  */
 struct pch_gbe_hw {
 	void *back;
@@ -462,7 +462,7 @@ struct pch_gbe_tx_desc {
 
 
 /**
- * struct pch_gbe_buffer - Buffer infomation
+ * struct pch_gbe_buffer - Buffer information
  * @skb:	pointer to a socket buffer
  * @dma:	DMA address
  * @time_stamp:	time stamp
@@ -477,7 +477,7 @@ struct pch_gbe_buffer {
 };
 
 /**
- * struct pch_gbe_tx_ring - tx ring infomation
+ * struct pch_gbe_tx_ring - tx ring information
  * @tx_lock:	spinlock structs
  * @desc:	pointer to the descriptor ring memory
  * @dma:	physical address of the descriptor ring
@@ -499,7 +499,7 @@ struct pch_gbe_tx_ring {
 };
 
 /**
- * struct pch_gbe_rx_ring - rx ring infomation
+ * struct pch_gbe_rx_ring - rx ring information
  * @desc:	pointer to the descriptor ring memory
  * @dma:	physical address of the descriptor ring
  * @size:	length of descriptor ring in bytes
diff --git a/drivers/net/pch_gbe/pch_gbe_ethtool.c b/drivers/net/pch_gbe/pch_gbe_ethtool.c
index c8c873b31a89..d2174a40d708 100644
--- a/drivers/net/pch_gbe/pch_gbe_ethtool.c
+++ b/drivers/net/pch_gbe/pch_gbe_ethtool.c
@@ -21,7 +21,7 @@
 #include "pch_gbe_api.h"
 
 /**
- * pch_gbe_stats - Stats item infomation
+ * pch_gbe_stats - Stats item information
  */
 struct pch_gbe_stats {
 	char string[ETH_GSTRING_LEN];
diff --git a/drivers/net/pch_gbe/pch_gbe_main.c b/drivers/net/pch_gbe/pch_gbe_main.c
index 8c66e22c3a0a..2ef2f9cdefa6 100644
--- a/drivers/net/pch_gbe/pch_gbe_main.c
+++ b/drivers/net/pch_gbe/pch_gbe_main.c
@@ -1011,7 +1011,7 @@ static void pch_gbe_tx_queue(struct pch_gbe_adapter *adapter,
 	tmp_skb->len = skb->len;
 	memcpy(&tmp_skb->data[ETH_HLEN + 2], &skb->data[ETH_HLEN],
 	       (skb->len - ETH_HLEN));
-	/*-- Set Buffer infomation --*/
+	/*-- Set Buffer information --*/
 	buffer_info->length = tmp_skb->len;
 	buffer_info->dma = dma_map_single(&adapter->pdev->dev, tmp_skb->data,
 					  buffer_info->length,
@@ -1540,7 +1540,7 @@ int pch_gbe_setup_tx_resources(struct pch_gbe_adapter *adapter,
 	size = (int)sizeof(struct pch_gbe_buffer) * tx_ring->count;
 	tx_ring->buffer_info = vzalloc(size);
 	if (!tx_ring->buffer_info) {
-		pr_err("Unable to allocate memory for the buffer infomation\n");
+		pr_err("Unable to allocate memory for the buffer information\n");
 		return -ENOMEM;
 	}
 
@@ -2441,7 +2441,7 @@ static struct pci_error_handlers pch_gbe_err_handler = {
 	.resume = pch_gbe_io_resume
 };
 
-static struct pci_driver pch_gbe_pcidev = {
+static struct pci_driver pch_gbe_driver = {
 	.name = KBUILD_MODNAME,
 	.id_table = pch_gbe_pcidev_id,
 	.probe = pch_gbe_probe,
@@ -2458,7 +2458,7 @@ static int __init pch_gbe_init_module(void)
 {
 	int ret;
 
-	ret = pci_register_driver(&pch_gbe_pcidev);
+	ret = pci_register_driver(&pch_gbe_driver);
 	if (copybreak != PCH_GBE_COPYBREAK_DEFAULT) {
 		if (copybreak == 0) {
 			pr_info("copybreak disabled\n");
@@ -2472,7 +2472,7 @@ static int __init pch_gbe_init_module(void)
 
 static void __exit pch_gbe_exit_module(void)
 {
-	pci_unregister_driver(&pch_gbe_pcidev);
+	pci_unregister_driver(&pch_gbe_driver);
 }
 
 module_init(pch_gbe_init_module);
diff --git a/drivers/net/pci-skeleton.c b/drivers/net/pci-skeleton.c
index 1766dc4f07e1..c0f23376a462 100644
--- a/drivers/net/pci-skeleton.c
+++ b/drivers/net/pci-skeleton.c
@@ -214,7 +214,7 @@ static struct {
 	{ "SMC1211TX EZCard 10/100 (RealTek RTL8139)" },
 /*	{ MPX5030, "Accton MPX5030 (RealTek RTL8139)" },*/
 	{ "Delta Electronics 8139 10/100BaseTX" },
-	{ "Addtron Technolgy 8139 10/100BaseTX" },
+	{ "Addtron Technology 8139 10/100BaseTX" },
 };
 
 
diff --git a/drivers/net/pcmcia/3c574_cs.c b/drivers/net/pcmcia/3c574_cs.c
index 321b12f82645..81ac330f931d 100644
--- a/drivers/net/pcmcia/3c574_cs.c
+++ b/drivers/net/pcmcia/3c574_cs.c
@@ -950,7 +950,7 @@ static struct net_device_stats *el3_get_stats(struct net_device *dev)
 }
 
 /*  Update statistics.
-	Suprisingly this need not be run single-threaded, but it effectively is.
+	Surprisingly this need not be run single-threaded, but it effectively is.
 	The counters clear when read, so the adds must merely be atomic.
  */
 static void update_stats(struct net_device *dev)
diff --git a/drivers/net/pcmcia/axnet_cs.c b/drivers/net/pcmcia/axnet_cs.c
index d3cb77205863..3077d72e8222 100644
--- a/drivers/net/pcmcia/axnet_cs.c
+++ b/drivers/net/pcmcia/axnet_cs.c
@@ -780,7 +780,7 @@ module_exit(exit_axnet_cs);
   Alexey Kuznetsov	: use the 8390's six bit hash multicast filter.
   Paul Gortmaker	: tweak ANK's above multicast changes a bit.
   Paul Gortmaker	: update packet statistics for v2.1.x
-  Alan Cox		: support arbitary stupid port mappings on the
+  Alan Cox		: support arbitrary stupid port mappings on the
   			  68K Macintosh. Support >16bit I/O spaces
   Paul Gortmaker	: add kmod support for auto-loading of the 8390
 			  module by all drivers that require it.
@@ -842,7 +842,7 @@ static void do_set_multicast_list(struct net_device *dev);
 /*
  *	SMP and the 8390 setup.
  *
- *	The 8390 isnt exactly designed to be multithreaded on RX/TX. There is
+ *	The 8390 isn't exactly designed to be multithreaded on RX/TX. There is
  *	a page register that controls bank and packet buffer access. We guard
  *	this with ei_local->page_lock. Nobody should assume or set the page other
  *	than zero when the lock is not held. Lock holders must restore page 0
diff --git a/drivers/net/pcmcia/smc91c92_cs.c b/drivers/net/pcmcia/smc91c92_cs.c
index 8a9ff5318923..108591756440 100644
--- a/drivers/net/pcmcia/smc91c92_cs.c
+++ b/drivers/net/pcmcia/smc91c92_cs.c
@@ -1264,7 +1264,7 @@ static netdev_tx_t smc_start_xmit(struct sk_buff *skb,
 
 /*======================================================================
 
-    Handle a Tx anomolous event.  Entered while in Window 2.
+    Handle a Tx anomalous event.  Entered while in Window 2.
 
 ======================================================================*/
 
diff --git a/drivers/net/pcnet32.c b/drivers/net/pcnet32.c
index aee3bb0358bf..768037602dff 100644
--- a/drivers/net/pcnet32.c
+++ b/drivers/net/pcnet32.c
@@ -1651,7 +1651,7 @@ pcnet32_probe1(unsigned long ioaddr, int shared, struct pci_dev *pdev)
 	/*
 	 *  On selected chips turn on the BCR18:NOUFLO bit. This stops transmit
 	 *  starting until the packet is loaded. Strike one for reliability, lose
-	 *  one for latency - although on PCI this isnt a big loss. Older chips
+	 *  one for latency - although on PCI this isn't a big loss. Older chips
 	 *  have FIFO's smaller than a packet, so you can't do this.
 	 *  Turn on BCR18:BurstRdEn and BCR18:BurstWrEn.
 	 */
diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index 993c52c82aeb..ff109fe5af6b 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -442,11 +442,11 @@ static int phy_attach_direct(struct net_device *dev, struct phy_device *phydev,
 			     u32 flags, phy_interface_t interface)
 {
 	struct device *d = &phydev->dev;
+	int err;
 
 	/* Assume that if there is no driver, that it doesn't
 	 * exist, and we should use the genphy driver. */
 	if (NULL == d->driver) {
-		int err;
 		d->driver = &genphy_driver.driver;
 
 		err = d->driver->probe(d);
@@ -474,7 +474,11 @@ static int phy_attach_direct(struct net_device *dev, struct phy_device *phydev,
 	/* Do initial configuration here, now that
 	 * we have certain key parameters
 	 * (dev_flags and interface) */
-	return phy_init_hw(phydev);
+	err = phy_init_hw(phydev);
+	if (err)
+		phy_detach(phydev);
+
+	return err;
 }
 
 /**
@@ -534,7 +538,7 @@ EXPORT_SYMBOL(phy_detach);
 /* Generic PHY support and helper functions */
 
 /**
- * genphy_config_advert - sanitize and advertise auto-negotation parameters
+ * genphy_config_advert - sanitize and advertise auto-negotiation parameters
  * @phydev: target phy_device struct
  *
  * Description: Writes MII_ADVERTISE with the appropriate values,
@@ -683,7 +687,7 @@ int genphy_config_aneg(struct phy_device *phydev)
 		return result;
 
 	if (result == 0) {
-		/* Advertisment hasn't changed, but maybe aneg was never on to
+		/* Advertisement hasn't changed, but maybe aneg was never on to
 		 * begin with?  Or maybe phy was isolated? */
 		int ctl = phy_read(phydev, MII_BMCR);
 
diff --git a/drivers/net/ppp_generic.c b/drivers/net/ppp_generic.c
index 9f6d670748d1..4609bc0e2f56 100644
--- a/drivers/net/ppp_generic.c
+++ b/drivers/net/ppp_generic.c
@@ -1448,7 +1448,7 @@ static int ppp_mp_explode(struct ppp *ppp, struct sk_buff *skb)
 
 		/*
 		 *check if we are on the last channel or
-		 *we exceded the lenght of the data to
+		 *we exceded the length of the data to
 		 *fragment
 		 */
 		if ((nfree <= 0) || (flen > len))
diff --git a/drivers/net/ppp_synctty.c b/drivers/net/ppp_synctty.c
index 4e6b72f57de8..2573f525f11c 100644
--- a/drivers/net/ppp_synctty.c
+++ b/drivers/net/ppp_synctty.c
@@ -178,7 +178,7 @@ ppp_print_buffer (const char *name, const __u8 *buf, int count)
  * way to fix this is to use a rwlock in the tty struct, but for now
  * we use a single global rwlock for all ttys in ppp line discipline.
  *
- * FIXME: Fixed in tty_io nowdays.
+ * FIXME: Fixed in tty_io nowadays.
  */
 static DEFINE_RWLOCK(disc_data_lock);
 
diff --git a/drivers/net/pppoe.c b/drivers/net/pppoe.c
index 78c0e3c9b2b5..693aaef4e3ce 100644
--- a/drivers/net/pppoe.c
+++ b/drivers/net/pppoe.c
@@ -115,7 +115,7 @@ struct pppoe_net {
  * 2) Session stage (MAC and SID are known)
  *
  * Ethernet frames have a special tag for this but
- * we use simplier approach based on session id
+ * we use simpler approach based on session id
  */
 static inline bool stage_session(__be16 sid)
 {
diff --git a/drivers/net/ps3_gelic_net.c b/drivers/net/ps3_gelic_net.c
index 5ecfa4b1e758..ffdf7349ef7a 100644
--- a/drivers/net/ps3_gelic_net.c
+++ b/drivers/net/ps3_gelic_net.c
@@ -632,7 +632,7 @@ static inline void gelic_card_enable_rxdmac(struct gelic_card *card)
  * @card: card structure
  *
  * gelic_card_disable_rxdmac terminates processing on the DMA controller by
- * turing off DMA and issueing a force end
+ * turing off DMA and issuing a force end
  */
 static inline void gelic_card_disable_rxdmac(struct gelic_card *card)
 {
@@ -650,7 +650,7 @@ static inline void gelic_card_disable_rxdmac(struct gelic_card *card)
  * @card: card structure
  *
  * gelic_card_disable_txdmac terminates processing on the DMA controller by
- * turing off DMA and issueing a force end
+ * turing off DMA and issuing a force end
  */
 static inline void gelic_card_disable_txdmac(struct gelic_card *card)
 {
diff --git a/drivers/net/ps3_gelic_net.h b/drivers/net/ps3_gelic_net.h
index 32521ae5e824..fadadf9097a3 100644
--- a/drivers/net/ps3_gelic_net.h
+++ b/drivers/net/ps3_gelic_net.h
@@ -117,7 +117,7 @@ enum gelic_descr_rx_error {
 	GELIC_DESCR_RXDATAERR	= 0x00020000, /* IP packet format error */
 	GELIC_DESCR_RXCALERR	= 0x00010000, /* cariier extension length
 					      * error */
-	GELIC_DESCR_RXCREXERR	= 0x00008000, /* carrier extention error */
+	GELIC_DESCR_RXCREXERR	= 0x00008000, /* carrier extension error */
 	GELIC_DESCR_RXMLTCST	= 0x00004000, /* multicast address frame */
 	/* bit 13..0 reserved */
 };
diff --git a/drivers/net/ps3_gelic_wireless.c b/drivers/net/ps3_gelic_wireless.c
index 4a624a29393f..b5ae29d20f2e 100644
--- a/drivers/net/ps3_gelic_wireless.c
+++ b/drivers/net/ps3_gelic_wireless.c
@@ -814,7 +814,7 @@ static int gelic_wl_set_auth(struct net_device *netdev,
 			 * you will not decide suitable cipher from
 			 * its beacon.
 			 * You should have knowledge about the AP's
-			 * cipher infomation in other method prior to
+			 * cipher information in other method prior to
 			 * the association.
 			 */
 			if (!precise_ie())
diff --git a/drivers/net/pxa168_eth.c b/drivers/net/pxa168_eth.c
index 1b63c8aef121..89f7540d90f9 100644
--- a/drivers/net/pxa168_eth.c
+++ b/drivers/net/pxa168_eth.c
@@ -462,7 +462,7 @@ static u32 hash_function(unsigned char *mac_addr_orig)
  * pep - ETHERNET .
  * mac_addr - MAC address.
  * skip - if 1, skip this address.Used in case of deleting an entry which is a
- *	  part of chain in the hash table.We cant just delete the entry since
+ *	  part of chain in the hash table.We can't just delete the entry since
  *	  that will break the chain.We need to defragment the tables time to
  *	  time.
  * rd   - 0 Discard packet upon match.
diff --git a/drivers/net/qla3xxx.h b/drivers/net/qla3xxx.h
index 3362a661248c..73e234366a82 100644
--- a/drivers/net/qla3xxx.h
+++ b/drivers/net/qla3xxx.h
@@ -770,7 +770,7 @@ enum {
 	FM93C56A_WDS = 0x0,
 	FM93C56A_ERASE = 0x3,
 	FM93C56A_ERASE_ALL = 0x0,
-/* Command Extentions */
+/* Command Extensions */
 	FM93C56A_WEN_EXT = 0x3,
 	FM93C56A_WRITE_ALL_EXT = 0x1,
 	FM93C56A_WDS_EXT = 0x0,
diff --git a/drivers/net/qlcnic/qlcnic_ethtool.c b/drivers/net/qlcnic/qlcnic_ethtool.c
index 4c14510e2a87..45b2755d6cba 100644
--- a/drivers/net/qlcnic/qlcnic_ethtool.c
+++ b/drivers/net/qlcnic/qlcnic_ethtool.c
@@ -1003,7 +1003,7 @@ static int qlcnic_set_flags(struct net_device *netdev, u32 data)
 	struct qlcnic_adapter *adapter = netdev_priv(netdev);
 	int hw_lro;
 
-	if (data & ~ETH_FLAG_LRO)
+	if (ethtool_invalid_flags(netdev, data, ETH_FLAG_LRO))
 		return -EINVAL;
 
 	if (!(adapter->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO))
diff --git a/drivers/net/qlge/qlge_main.c b/drivers/net/qlge/qlge_main.c
index 49bfa5813068..5bb311945436 100644
--- a/drivers/net/qlge/qlge_main.c
+++ b/drivers/net/qlge/qlge_main.c
@@ -660,7 +660,7 @@ static void ql_disable_interrupts(struct ql_adapter *qdev)
 /* If we're running with multiple MSI-X vectors then we enable on the fly.
  * Otherwise, we may have multiple outstanding workers and don't want to
  * enable until the last one finishes. In this case, the irq_cnt gets
- * incremented everytime we queue a worker and decremented everytime
+ * incremented every time we queue a worker and decremented every time
  * a worker finishes.  Once it hits zero we enable the interrupt.
  */
 u32 ql_enable_completion_interrupt(struct ql_adapter *qdev, u32 intr)
@@ -3299,7 +3299,7 @@ msi:
  * will service it.  An example would be if there are
  * 2 vectors (so 2 RSS rings) and 8 TX completion rings.
  * This would mean that vector 0 would service RSS ring 0
- * and TX competion rings 0,1,2 and 3.  Vector 1 would
+ * and TX completion rings 0,1,2 and 3.  Vector 1 would
  * service RSS ring 1 and TX completion rings 4,5,6 and 7.
  */
 static void ql_set_tx_vect(struct ql_adapter *qdev)
@@ -4152,7 +4152,7 @@ static int ql_change_rx_buffers(struct ql_adapter *qdev)
 	int i, status;
 	u32 lbq_buf_len;
 
-	/* Wait for an oustanding reset to complete. */
+	/* Wait for an outstanding reset to complete. */
 	if (!test_bit(QL_ADAPTER_UP, &qdev->flags)) {
 		int i = 3;
 		while (i-- && !test_bit(QL_ADAPTER_UP, &qdev->flags)) {
@@ -4281,7 +4281,7 @@ static void qlge_set_multicast_list(struct net_device *ndev)
 			if (ql_set_routing_reg
 			    (qdev, RT_IDX_PROMISCUOUS_SLOT, RT_IDX_VALID, 1)) {
 				netif_err(qdev, hw, qdev->ndev,
-					  "Failed to set promiscous mode.\n");
+					  "Failed to set promiscuous mode.\n");
 			} else {
 				set_bit(QL_PROMISCUOUS, &qdev->flags);
 			}
@@ -4291,7 +4291,7 @@ static void qlge_set_multicast_list(struct net_device *ndev)
 			if (ql_set_routing_reg
 			    (qdev, RT_IDX_PROMISCUOUS_SLOT, RT_IDX_VALID, 0)) {
 				netif_err(qdev, hw, qdev->ndev,
-					  "Failed to clear promiscous mode.\n");
+					  "Failed to clear promiscuous mode.\n");
 			} else {
 				clear_bit(QL_PROMISCUOUS, &qdev->flags);
 			}
diff --git a/drivers/net/r6040.c b/drivers/net/r6040.c
index e3ebd90ae651..200a363c3bf5 100644
--- a/drivers/net/r6040.c
+++ b/drivers/net/r6040.c
@@ -535,7 +535,7 @@ static int r6040_rx(struct net_device *dev, int limit)
 			/* RX dribble */
 			if (err & DSC_RX_ERR_DRI)
 				dev->stats.rx_frame_errors++;
-			/* Buffer lenght exceeded */
+			/* Buffer length exceeded */
 			if (err & DSC_RX_ERR_BUF)
 				dev->stats.rx_length_errors++;
 			/* Packet too long */
diff --git a/drivers/net/s2io.c b/drivers/net/s2io.c
index 2ad6364103ea..337bdcd5abc9 100644
--- a/drivers/net/s2io.c
+++ b/drivers/net/s2io.c
@@ -2353,7 +2353,7 @@ static int start_nic(struct s2io_nic *nic)
 
 	if (s2io_link_fault_indication(nic) == MAC_RMAC_ERR_TIMER) {
 		/*
-		 * Dont see link state interrupts initally on some switches,
+		 * Dont see link state interrupts initially on some switches,
 		 * so directly scheduling the link state task here.
 		 */
 		schedule_work(&nic->set_link_task);
@@ -3563,7 +3563,7 @@ static void s2io_reset(struct s2io_nic *sp)
 	}
 
 	/*
-	 * Clear spurious ECC interrupts that would have occured on
+	 * Clear spurious ECC interrupts that would have occurred on
 	 * XFRAME II cards after reset.
 	 */
 	if (sp->device_type == XFRAME_II_DEVICE) {
@@ -4065,7 +4065,7 @@ static int s2io_close(struct net_device *dev)
  *  Description :
  *  This function is the Tx entry point of the driver. S2IO NIC supports
  *  certain protocol assist features on Tx side, namely  CSO, S/G, LSO.
- *  NOTE: when device cant queue the pkt,just the trans_start variable will
+ *  NOTE: when device can't queue the pkt,just the trans_start variable will
  *  not be upadted.
  *  Return value:
  *  0 on success & 1 on failure.
@@ -6726,7 +6726,7 @@ static int s2io_ethtool_set_flags(struct net_device *dev, u32 data)
 	int rc = 0;
 	int changed = 0;
 
-	if (data & ~ETH_FLAG_LRO)
+	if (ethtool_invalid_flags(dev, data, ETH_FLAG_LRO))
 		return -EINVAL;
 
 	if (data & ETH_FLAG_LRO) {
diff --git a/drivers/net/s2io.h b/drivers/net/s2io.h
index 7d160306b651..2d144979f6f8 100644
--- a/drivers/net/s2io.h
+++ b/drivers/net/s2io.h
@@ -376,7 +376,7 @@ static const u16 fifo_selector[MAX_TX_FIFOS] = {0, 1, 3, 3, 7, 7, 7, 7};
 /* Maintains Per FIFO related information. */
 struct tx_fifo_config {
 #define	MAX_AVAILABLE_TXDS	8192
-	u32 fifo_len;		/* specifies len of FIFO upto 8192, ie no of TxDLs */
+	u32 fifo_len;		/* specifies len of FIFO up to 8192, ie no of TxDLs */
 /* Priority definition */
 #define TX_FIFO_PRI_0               0	/*Highest */
 #define TX_FIFO_PRI_1               1
diff --git a/drivers/net/sfc/efx.c b/drivers/net/sfc/efx.c
index b8bd936374f2..d890679e4c4d 100644
--- a/drivers/net/sfc/efx.c
+++ b/drivers/net/sfc/efx.c
@@ -1054,6 +1054,7 @@ static int efx_init_io(struct efx_nic *efx)
 {
 	struct pci_dev *pci_dev = efx->pci_dev;
 	dma_addr_t dma_mask = efx->type->max_dma_mask;
+	bool use_wc;
 	int rc;
 
 	netif_dbg(efx, probe, efx->net_dev, "initialising I/O\n");
@@ -1104,8 +1105,21 @@ static int efx_init_io(struct efx_nic *efx)
 		rc = -EIO;
 		goto fail3;
 	}
-	efx->membase = ioremap_wc(efx->membase_phys,
-				  efx->type->mem_map_size);
+
+	/* bug22643: If SR-IOV is enabled then tx push over a write combined
+	 * mapping is unsafe. We need to disable write combining in this case.
+	 * MSI is unsupported when SR-IOV is enabled, and the firmware will
+	 * have removed the MSI capability. So write combining is safe if
+	 * there is an MSI capability.
+	 */
+	use_wc = (!EFX_WORKAROUND_22643(efx) ||
+		  pci_find_capability(pci_dev, PCI_CAP_ID_MSI));
+	if (use_wc)
+		efx->membase = ioremap_wc(efx->membase_phys,
+					  efx->type->mem_map_size);
+	else
+		efx->membase = ioremap_nocache(efx->membase_phys,
+					       efx->type->mem_map_size);
 	if (!efx->membase) {
 		netif_err(efx, probe, efx->net_dev,
 			  "could not map memory BAR at %llx+%x\n",
diff --git a/drivers/net/sfc/falcon.c b/drivers/net/sfc/falcon.c
index 734fcfb52e85..d96b23769bd1 100644
--- a/drivers/net/sfc/falcon.c
+++ b/drivers/net/sfc/falcon.c
@@ -692,7 +692,7 @@ static int falcon_gmii_wait(struct efx_nic *efx)
 	efx_oword_t md_stat;
 	int count;
 
-	/* wait upto 50ms - taken max from datasheet */
+	/* wait up to 50ms - taken max from datasheet */
 	for (count = 0; count < 5000; count++) {
 		efx_reado(efx, &md_stat, FR_AB_MD_STAT);
 		if (EFX_OWORD_FIELD(md_stat, FRF_AB_MD_BSY) == 0) {
@@ -1221,7 +1221,7 @@ static int falcon_reset_sram(struct efx_nic *efx)
 
 			return 0;
 		}
-	} while (++count < 20);	/* wait upto 0.4 sec */
+	} while (++count < 20);	/* wait up to 0.4 sec */
 
 	netif_err(efx, hw, efx->net_dev, "timed out waiting for SRAM reset\n");
 	return -ETIMEDOUT;
diff --git a/drivers/net/sfc/mcdi.c b/drivers/net/sfc/mcdi.c
index 5e118f0d2479..d98479030ef2 100644
--- a/drivers/net/sfc/mcdi.c
+++ b/drivers/net/sfc/mcdi.c
@@ -453,7 +453,7 @@ static void efx_mcdi_ev_death(struct efx_nic *efx, int rc)
 	 *
 	 * There's a race here with efx_mcdi_rpc(), because we might receive
 	 * a REBOOT event *before* the request has been copied out. In polled
-	 * mode (during startup) this is irrelevent, because efx_mcdi_complete()
+	 * mode (during startup) this is irrelevant, because efx_mcdi_complete()
 	 * is ignored. In event mode, this condition is just an edge-case of
 	 * receiving a REBOOT event after posting the MCDI request. Did the mc
 	 * reboot before or after the copyout? The best we can do always is
diff --git a/drivers/net/sfc/mcdi_pcol.h b/drivers/net/sfc/mcdi_pcol.h
index b86a15f221ad..41fe06fa0600 100644
--- a/drivers/net/sfc/mcdi_pcol.h
+++ b/drivers/net/sfc/mcdi_pcol.h
@@ -103,7 +103,7 @@
  *
  * If Code==CMDDONE, then the fields are further interpreted as:
  *
- *   - LEVEL==INFO    Command succeded
+ *   - LEVEL==INFO    Command succeeded
  *   - LEVEL==ERR     Command failed
  *
  *    0     8         16      24     32
@@ -572,7 +572,7 @@
   (4*(_numwords))
 
 /* MC_CMD_SET_RAND_SEED:
- * Set the 16byte seed for the MC psuedo-random generator
+ * Set the 16byte seed for the MC pseudo-random generator
  */
 #define MC_CMD_SET_RAND_SEED 0x1a
 #define MC_CMD_SET_RAND_SEED_IN_LEN 16
@@ -1162,7 +1162,7 @@
 #define MC_CMD_MAC_STATS_CMD_CLEAR_WIDTH 1
 #define MC_CMD_MAC_STATS_CMD_PERIODIC_CHANGE_LBN 2
 #define MC_CMD_MAC_STATS_CMD_PERIODIC_CHANGE_WIDTH 1
-/* Remaining PERIOD* fields only relevent when PERIODIC_CHANGE is set */
+/* Remaining PERIOD* fields only relevant when PERIODIC_CHANGE is set */
 #define MC_CMD_MAC_STATS_CMD_PERIODIC_ENABLE_LBN 3
 #define MC_CMD_MAC_STATS_CMD_PERIODIC_ENABLE_WIDTH 1
 #define MC_CMD_MAC_STATS_CMD_PERIODIC_CLEAR_LBN 4
diff --git a/drivers/net/sfc/mcdi_phy.c b/drivers/net/sfc/mcdi_phy.c
index ec3f740f5465..7e3c65b0c99f 100644
--- a/drivers/net/sfc/mcdi_phy.c
+++ b/drivers/net/sfc/mcdi_phy.c
@@ -449,7 +449,7 @@ void efx_mcdi_phy_check_fcntl(struct efx_nic *efx, u32 lpa)
 	struct efx_mcdi_phy_data *phy_cfg = efx->phy_data;
 	u32 rmtadv;
 
-	/* The link partner capabilities are only relevent if the
+	/* The link partner capabilities are only relevant if the
 	 * link supports flow control autonegotiation */
 	if (~phy_cfg->supported_cap & (1 << MC_CMD_PHY_CAP_AN_LBN))
 		return;
diff --git a/drivers/net/sfc/net_driver.h b/drivers/net/sfc/net_driver.h
index 215d5c51bfa0..9ffa9a6b55a0 100644
--- a/drivers/net/sfc/net_driver.h
+++ b/drivers/net/sfc/net_driver.h
@@ -670,7 +670,7 @@ struct efx_filter_state;
  * @irq_zero_count: Number of legacy IRQs seen with queue flags == 0
  * @fatal_irq_level: IRQ level (bit number) used for serious errors
  * @mtd_list: List of MTDs attached to the NIC
- * @nic_data: Hardware dependant state
+ * @nic_data: Hardware dependent state
  * @mac_lock: MAC access lock. Protects @port_enabled, @phy_mode,
  *	@port_inhibited, efx_monitor() and efx_reconfigure_port()
  * @port_enabled: Port enabled indicator.
diff --git a/drivers/net/sfc/workarounds.h b/drivers/net/sfc/workarounds.h
index e4dd3a7f304b..99ff11400cef 100644
--- a/drivers/net/sfc/workarounds.h
+++ b/drivers/net/sfc/workarounds.h
@@ -38,6 +38,8 @@
 #define EFX_WORKAROUND_15783 EFX_WORKAROUND_ALWAYS
 /* Legacy interrupt storm when interrupt fifo fills */
 #define EFX_WORKAROUND_17213 EFX_WORKAROUND_SIENA
+/* Write combining and sriov=enabled are incompatible */
+#define EFX_WORKAROUND_22643 EFX_WORKAROUND_SIENA
 
 /* Spurious parity errors in TSORT buffers */
 #define EFX_WORKAROUND_5129 EFX_WORKAROUND_FALCON_A
diff --git a/drivers/net/sgiseeq.c b/drivers/net/sgiseeq.c
index 3a0cc63428ee..dd03bf619988 100644
--- a/drivers/net/sgiseeq.c
+++ b/drivers/net/sgiseeq.c
@@ -33,7 +33,7 @@ static char *sgiseeqstr = "SGI Seeq8003";
  * with that in mind, I've decided to make this driver look completely like a
  * stupid Lance from a driver architecture perspective.  Only difference is that
  * here our "ring buffer" looks and acts like a real Lance one does but is
- * layed out like how the HPC DMA and the Seeq want it to.  You'd be surprised
+ * laid out like how the HPC DMA and the Seeq want it to.  You'd be surprised
  * how a stupid idea like this can pay off in performance, not to mention
  * making this driver 2,000 times easier to write. ;-)
  */
@@ -77,7 +77,7 @@ struct sgiseeq_tx_desc {
 };
 
 /*
- * Warning: This structure is layed out in a certain way because HPC dma
+ * Warning: This structure is laid out in a certain way because HPC dma
  *          descriptors must be 8-byte aligned.  So don't touch this without
  *          some care.
  */
diff --git a/drivers/net/sh_eth.c b/drivers/net/sh_eth.c
index e9e7a530552c..8a72a979ee71 100644
--- a/drivers/net/sh_eth.c
+++ b/drivers/net/sh_eth.c
@@ -1875,7 +1875,7 @@ static int sh_eth_drv_probe(struct platform_device *pdev)
 	if (ret)
 		goto out_unregister;
 
-	/* print device infomation */
+	/* print device information */
 	pr_info("Base address at 0x%x, %pM, IRQ %d.\n",
 	       (u32)ndev->base_addr, ndev->dev_addr, ndev->irq);
 
diff --git a/drivers/net/sis190.c b/drivers/net/sis190.c
index 3406ed870917..b436e007eea0 100644
--- a/drivers/net/sis190.c
+++ b/drivers/net/sis190.c
@@ -93,7 +93,7 @@ enum sis190_registers {
 	IntrStatus		= 0x20,
 	IntrMask		= 0x24,
 	IntrControl		= 0x28,
-	IntrTimer		= 0x2c,	// unused (Interupt Timer)
+	IntrTimer		= 0x2c,	// unused (Interrupt Timer)
 	PMControl		= 0x30,	// unused (Power Mgmt Control/Status)
 	rsv2			= 0x34,	// reserved
 	ROMControl		= 0x38,
@@ -234,7 +234,7 @@ enum _DescStatusBit {
 	RxSizeMask	= 0x0000ffff
 	/*
 	 * The asic could apparently do vlan, TSO, jumbo (sis191 only) and
-	 * provide two (unused with Linux) Tx queues. No publically
+	 * provide two (unused with Linux) Tx queues. No publicly
 	 * available documentation alas.
 	 */
 };
diff --git a/drivers/net/sis900.c b/drivers/net/sis900.c
index 84d4167eee9a..cb317cd069ff 100644
--- a/drivers/net/sis900.c
+++ b/drivers/net/sis900.c
@@ -1180,7 +1180,7 @@ sis900_init_rx_ring(struct net_device *net_dev)
  *
  *	630E equalizer workaround rule(Cyrus Huang 08/15)
  *	PHY register 14h(Test)
- *	Bit 14: 0 -- Automatically dectect (default)
+ *	Bit 14: 0 -- Automatically detect (default)
  *		1 -- Manually set Equalizer filter
  *	Bit 13: 0 -- (Default)
  *		1 -- Speed up convergence of equalizer setting
@@ -1192,7 +1192,7 @@ sis900_init_rx_ring(struct net_device *net_dev)
  *	Then set equalizer value, and set Bit 14 to 1, Bit 9 to 0
  *	Link Off:Set Bit 13 to 1, Bit 14 to 0
  *	Calculate Equalizer value:
- *	When Link is ON and Bit 14 is 0, SIS900PHY will auto-dectect proper equalizer value.
+ *	When Link is ON and Bit 14 is 0, SIS900PHY will auto-detect proper equalizer value.
  *	When the equalizer is stable, this value is not a fixed value. It will be within
  *	a small range(eg. 7~9). Then we get a minimum and a maximum value(eg. min=7, max=9)
  *	0 <= max <= 4  --> set equalizer to max
@@ -1723,7 +1723,7 @@ static int sis900_rx(struct net_device *net_dev)
 		rx_size = data_size - CRC_SIZE;
 
 #if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
-		/* ``TOOLONG'' flag means jumbo packet recived. */
+		/* ``TOOLONG'' flag means jumbo packet received. */
 		if ((rx_status & TOOLONG) && data_size <= MAX_FRAME_SIZE)
 			rx_status &= (~ ((unsigned int)TOOLONG));
 #endif
diff --git a/drivers/net/skfp/ess.c b/drivers/net/skfp/ess.c
index 8639a0884f5c..2fc5987b41dc 100644
--- a/drivers/net/skfp/ess.c
+++ b/drivers/net/skfp/ess.c
@@ -241,7 +241,7 @@ int ess_raf_received_pack(struct s_smc *smc, SMbuf *mb, struct smt_header *sm,
 			!= SMT_RDF_SUCCESS) ||
 			(sm->smt_tid != smc->ess.alloc_trans_id)) {
 
-			DB_ESS("ESS: Allocation Responce not accepted\n",0,0) ;
+			DB_ESS("ESS: Allocation Response not accepted\n",0,0) ;
 			return fs;
 		}
 
@@ -393,7 +393,7 @@ static int process_bw_alloc(struct s_smc *smc, long int payload, long int overhe
 	 *		      |	 T-NEG	|
 	 *		       -       -
  	 *
-	 * T-NEG is discribed by the equation:
+	 * T-NEG is described by the equation:
 	 *
 	 *		     (-) fddiMACT-NEG
 	 *	T-NEG =	    -------------------
@@ -479,7 +479,7 @@ static void ess_send_response(struct s_smc *smc, struct smt_header *sm,
 	void			*p ;
 
 	/*
-	 * get and initialize the responce frame
+	 * get and initialize the response frame
 	 */
 	if (sba_cmd == CHANGE_ALLOCATION) {
 		if (!(mb=smt_build_frame(smc,SMT_RAF,SMT_REPLY,
@@ -578,7 +578,7 @@ static void ess_send_alc_req(struct s_smc *smc)
 	}
 	
 	/*
-	 * get and initialize the responce frame
+	 * get and initialize the response frame
 	 */
 	if (!(mb=smt_build_frame(smc,SMT_RAF,SMT_REQUEST,
 			sizeof(struct smt_sba_alc_req))))
diff --git a/drivers/net/skfp/fplustm.c b/drivers/net/skfp/fplustm.c
index ca4e7bb6a5a8..a20ed1a98099 100644
--- a/drivers/net/skfp/fplustm.c
+++ b/drivers/net/skfp/fplustm.c
@@ -340,7 +340,7 @@ static void mac_counter_init(struct s_smc *smc)
 	outpw(FM_A(FM_LCNTR),0) ;
 	outpw(FM_A(FM_ECNTR),0) ;
 	/*
-	 * clear internal error counter stucture
+	 * clear internal error counter structure
 	 */
 	ec = (u_long *)&smc->hw.fp.err_stats ;
 	for (i = (sizeof(struct err_st)/sizeof(long)) ; i ; i--)
@@ -1262,8 +1262,8 @@ Function	DOWNCALL/INTERN	(SMT, fplustm.c)
 
 Para	mode =	1	RX_ENABLE_ALLMULTI	enable all multicasts
 		2	RX_DISABLE_ALLMULTI	disable "enable all multicasts"
-		3	RX_ENABLE_PROMISC	enable promiscous
-		4	RX_DISABLE_PROMISC	disable promiscous
+		3	RX_ENABLE_PROMISC	enable promiscuous
+		4	RX_DISABLE_PROMISC	disable promiscuous
 		5	RX_ENABLE_NSA		enable reception of NSA frames
 		6	RX_DISABLE_NSA		disable reception of NSA frames
 
diff --git a/drivers/net/skfp/h/cmtdef.h b/drivers/net/skfp/h/cmtdef.h
index f2f771d8be76..5a6c6122ccb0 100644
--- a/drivers/net/skfp/h/cmtdef.h
+++ b/drivers/net/skfp/h/cmtdef.h
@@ -19,7 +19,7 @@
 
 /*
  * implementation specific constants
- * MODIIFY THE FOLLWOING THREE DEFINES
+ * MODIIFY THE FOLLOWING THREE DEFINES
  */
 #define AMDPLC			/* if Amd PLC chip used */
 #ifdef	CONC
@@ -456,7 +456,7 @@ struct s_plc {
 	u_long soft_err ;		/* error counter */
 	u_long parity_err ;		/* error counter */
 	u_long ebuf_err ;		/* error counter */
-	u_long ebuf_cont ;		/* continous error counter */
+	u_long ebuf_cont ;		/* continuous error counter */
 	u_long phyinv ;			/* error counter */
 	u_long vsym_ctr ;		/* error counter */
 	u_long mini_ctr ;		/* error counter */
diff --git a/drivers/net/skfp/h/fplustm.h b/drivers/net/skfp/h/fplustm.h
index 6d738e1e2393..d43191ed938b 100644
--- a/drivers/net/skfp/h/fplustm.h
+++ b/drivers/net/skfp/h/fplustm.h
@@ -237,8 +237,8 @@ struct s_smt_fp {
  */
 #define RX_ENABLE_ALLMULTI	1	/* enable all multicasts */
 #define RX_DISABLE_ALLMULTI	2	/* disable "enable all multicasts" */
-#define RX_ENABLE_PROMISC	3	/* enable promiscous */
-#define RX_DISABLE_PROMISC	4	/* disable promiscous */
+#define RX_ENABLE_PROMISC	3	/* enable promiscuous */
+#define RX_DISABLE_PROMISC	4	/* disable promiscuous */
 #define RX_ENABLE_NSA		5	/* enable reception of NSA frames */
 #define RX_DISABLE_NSA		6	/* disable reception of NSA frames */
 
diff --git a/drivers/net/skfp/h/smc.h b/drivers/net/skfp/h/smc.h
index 026a83b9f743..c774a95902f5 100644
--- a/drivers/net/skfp/h/smc.h
+++ b/drivers/net/skfp/h/smc.h
@@ -388,7 +388,7 @@ struct smt_config {
 	u_long	rmt_t_poll ;		/* RMT : claim/beacon poller */
 	u_long  rmt_dup_mac_behavior ;  /* Flag for the beavior of SMT if
 					 * a Duplicate MAC Address was detected.
-					 * FALSE: SMT will leave finaly the ring
+					 * FALSE: SMT will leave finally the ring
 					 * TRUE:  SMT will reinstert into the ring
 					 */
 	u_long	mac_d_max ;		/* MAC : D_Max timer value */
diff --git a/drivers/net/skfp/h/smt.h b/drivers/net/skfp/h/smt.h
index 2976757a36fb..2030f9cbb24b 100644
--- a/drivers/net/skfp/h/smt.h
+++ b/drivers/net/skfp/h/smt.h
@@ -793,7 +793,7 @@ struct smt_rdf {
 } ;
 
 /*
- * SBA Request Allocation Responce Frame
+ * SBA Request Allocation Response Frame
  */
 struct smt_sba_alc_res {
 	struct smt_header	smt ;		/* generic header */
diff --git a/drivers/net/skfp/h/supern_2.h b/drivers/net/skfp/h/supern_2.h
index 5ba0b8306753..0b73690280f6 100644
--- a/drivers/net/skfp/h/supern_2.h
+++ b/drivers/net/skfp/h/supern_2.h
@@ -14,7 +14,7 @@
 
 /*
 	defines for AMD Supernet II chip set
-	the chips are refered to as
+	the chips are referred to as
 		FPLUS	Formac Plus
 		PLC	Physical Layer
 
@@ -386,7 +386,7 @@ struct tx_queue {
 #define	FM_MDISRCV	(4<<8)		/* disable receive function */
 #define	FM_MRES0	(5<<8)		/* reserve */
 #define	FM_MLIMPROM	(6<<8)		/* limited-promiscuous mode */
-#define FM_MPROMISCOUS	(7<<8)		/* address detection : promiscous */
+#define FM_MPROMISCOUS	(7<<8)		/* address detection : promiscuous */
 
 #define FM_SELSA	0x0800		/* select-short-address bit */
 
diff --git a/drivers/net/skfp/hwmtm.c b/drivers/net/skfp/hwmtm.c
index af5a755e269d..e26398b5a7dc 100644
--- a/drivers/net/skfp/hwmtm.c
+++ b/drivers/net/skfp/hwmtm.c
@@ -691,7 +691,7 @@ static u_long repair_rxd_ring(struct s_smc *smc, struct s_smt_rx_queue *queue)
  *		interrupt service routine, handles the interrupt requests
  *		generated by the FDDI adapter.
  *
- * NOTE:	The operating system dependent module must garantee that the
+ * NOTE:	The operating system dependent module must guarantee that the
  *		interrupts of the adapter are disabled when it calls fddi_isr.
  *
  *	About the USE_BREAK_ISR mechanismn:
diff --git a/drivers/net/skfp/pcmplc.c b/drivers/net/skfp/pcmplc.c
index 112d35b1bf0e..88d02d0a42c4 100644
--- a/drivers/net/skfp/pcmplc.c
+++ b/drivers/net/skfp/pcmplc.c
@@ -1680,7 +1680,7 @@ void plc_irq(struct s_smc *smc, int np, unsigned int cmd)
 			 * Prevent counter from being wrapped after
 			 * hanging years in that interrupt.
 			 */
-			plc->ebuf_cont++ ;	/* Ebuf continous error */
+			plc->ebuf_cont++ ;	/* Ebuf continuous error */
 		}
 
 #ifdef	SUPERNET_3
@@ -1717,8 +1717,8 @@ void plc_irq(struct s_smc *smc, int np, unsigned int cmd)
 		}
 #endif	/* SUPERNET_3 */
 	} else {
-		/* Reset the continous error variable */
-		plc->ebuf_cont = 0 ;	/* reset Ebuf continous error */
+		/* Reset the continuous error variable */
+		plc->ebuf_cont = 0 ;	/* reset Ebuf continuous error */
 	}
 	if (cmd & PL_PHYINV) {		/* physical layer invalid signal */
 		plc->phyinv++ ;
diff --git a/drivers/net/skfp/smt.c b/drivers/net/skfp/smt.c
index 1e1bd0c201c8..08d94329c12f 100644
--- a/drivers/net/skfp/smt.c
+++ b/drivers/net/skfp/smt.c
@@ -219,7 +219,7 @@ void smt_emulate_token_ct(struct s_smc *smc, int mac_index)
 
 	/*
 	 * Only when ring is up we will have a token count. The
-	 * flag is unfortunatly a single instance value. This
+	 * flag is unfortunately a single instance value. This
 	 * doesn't matter now, because we currently have only
 	 * one MAC instance.
 	 */
diff --git a/drivers/net/skge.h b/drivers/net/skge.h
index 507addcaffa3..51c0214ac25c 100644
--- a/drivers/net/skge.h
+++ b/drivers/net/skge.h
@@ -1038,7 +1038,7 @@ enum {
 
 	PHY_ST_PRE_SUP	= 1<<6, /* Bit  6:	Preamble Suppression */
 	PHY_ST_AN_OVER	= 1<<5, /* Bit  5:	Auto-Negotiation Over */
-	PHY_ST_REM_FLT	= 1<<4, /* Bit  4:	Remote Fault Condition Occured */
+	PHY_ST_REM_FLT	= 1<<4, /* Bit  4:	Remote Fault Condition Occurred */
 	PHY_ST_AN_CAP	= 1<<3, /* Bit  3:	Auto-Negotiation Capability */
 	PHY_ST_LSYNC	= 1<<2, /* Bit  2:	Link Synchronized */
 	PHY_ST_JAB_DET	= 1<<1, /* Bit  1:	Jabber Detected */
@@ -1721,8 +1721,8 @@ enum {
 	GM_GPSR_LINK_UP		= 1<<12, /* Bit 12:	Link Up Status */
 	GM_GPSR_PAUSE		= 1<<11, /* Bit 11:	Pause State */
 	GM_GPSR_TX_ACTIVE	= 1<<10, /* Bit 10:	Tx in Progress */
-	GM_GPSR_EXC_COL		= 1<<9,	/* Bit  9:	Excessive Collisions Occured */
-	GM_GPSR_LAT_COL		= 1<<8,	/* Bit  8:	Late Collisions Occured */
+	GM_GPSR_EXC_COL		= 1<<9,	/* Bit  9:	Excessive Collisions Occurred */
+	GM_GPSR_LAT_COL		= 1<<8,	/* Bit  8:	Late Collisions Occurred */
 
 	GM_GPSR_PHY_ST_CH	= 1<<5,	/* Bit  5:	PHY Status Change */
 	GM_GPSR_GIG_SPEED	= 1<<4,	/* Bit  4:	Gigabit Speed (1 = 1000 Mbps) */
@@ -2227,7 +2227,7 @@ enum {
 	XM_ST_BC	= 1<<7,		/* Bit  7:	Broadcast packet */
 	XM_ST_MC	= 1<<6,		/* Bit  6:	Multicast packet */
 	XM_ST_UC	= 1<<5,		/* Bit  5:	Unicast packet */
-	XM_ST_TX_UR	= 1<<4,		/* Bit  4:	FIFO Underrun occured */
+	XM_ST_TX_UR	= 1<<4,		/* Bit  4:	FIFO Underrun occurred */
 	XM_ST_CS_ERR	= 1<<3,		/* Bit  3:	Carrier Sense Error */
 	XM_ST_LAT_COL	= 1<<2,		/* Bit  2:	Late Collision Error */
 	XM_ST_MUL_COL	= 1<<1,		/* Bit  1:	Multiple Collisions */
diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c
index 2a91868788f7..ff8d262dc276 100644
--- a/drivers/net/sky2.c
+++ b/drivers/net/sky2.c
@@ -932,7 +932,7 @@ static void sky2_mac_init(struct sky2_hw *hw, unsigned port)
 	sky2_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_RST_CLR);
 	sky2_write16(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_OPER_ON);
 
-	/* On chips without ram buffer, pause is controled by MAC level */
+	/* On chips without ram buffer, pause is controlled by MAC level */
 	if (!(hw->flags & SKY2_HW_RAM_BUFFER)) {
 		/* Pause threshold is scaled by 8 in bytes */
 		if (hw->chip_id == CHIP_ID_YUKON_FE_P &&
@@ -3255,7 +3255,7 @@ static void sky2_reset(struct sky2_hw *hw)
 
 /* Take device down (offline).
  * Equivalent to doing dev_stop() but this does not
- * inform upper layers of the transistion.
+ * inform upper layers of the transition.
  */
 static void sky2_detach(struct net_device *dev)
 {
diff --git a/drivers/net/sky2.h b/drivers/net/sky2.h
index 6861b0e8db9a..0c6d10c5f053 100644
--- a/drivers/net/sky2.h
+++ b/drivers/net/sky2.h
@@ -1194,7 +1194,7 @@ enum {
 
 	PHY_ST_PRE_SUP	= 1<<6, /* Bit  6:	Preamble Suppression */
 	PHY_ST_AN_OVER	= 1<<5, /* Bit  5:	Auto-Negotiation Over */
-	PHY_ST_REM_FLT	= 1<<4, /* Bit  4:	Remote Fault Condition Occured */
+	PHY_ST_REM_FLT	= 1<<4, /* Bit  4:	Remote Fault Condition Occurred */
 	PHY_ST_AN_CAP	= 1<<3, /* Bit  3:	Auto-Negotiation Capability */
 	PHY_ST_LSYNC	= 1<<2, /* Bit  2:	Link Synchronized */
 	PHY_ST_JAB_DET	= 1<<1, /* Bit  1:	Jabber Detected */
@@ -1725,8 +1725,8 @@ enum {
 	GM_GPSR_LINK_UP		= 1<<12, /* Bit 12:	Link Up Status */
 	GM_GPSR_PAUSE		= 1<<11, /* Bit 11:	Pause State */
 	GM_GPSR_TX_ACTIVE	= 1<<10, /* Bit 10:	Tx in Progress */
-	GM_GPSR_EXC_COL		= 1<<9,	/* Bit  9:	Excessive Collisions Occured */
-	GM_GPSR_LAT_COL		= 1<<8,	/* Bit  8:	Late Collisions Occured */
+	GM_GPSR_EXC_COL		= 1<<9,	/* Bit  9:	Excessive Collisions Occurred */
+	GM_GPSR_LAT_COL		= 1<<8,	/* Bit  8:	Late Collisions Occurred */
 
 	GM_GPSR_PHY_ST_CH	= 1<<5,	/* Bit  5:	PHY Status Change */
 	GM_GPSR_GIG_SPEED	= 1<<4,	/* Bit  4:	Gigabit Speed (1 = 1000 Mbps) */
diff --git a/drivers/net/smc91x.h b/drivers/net/smc91x.h
index 68d48ab6eacf..5f53fbbf67be 100644
--- a/drivers/net/smc91x.h
+++ b/drivers/net/smc91x.h
@@ -921,7 +921,7 @@ static const char * chip_ids[ 16 ] =  {
  * Hack Alert: Some setups just can't write 8 or 16 bits reliably when not
  * aligned to a 32 bit boundary.  I tell you that does exist!
  * Fortunately the affected register accesses can be easily worked around
- * since we can write zeroes to the preceeding 16 bits without adverse
+ * since we can write zeroes to the preceding 16 bits without adverse
  * effects and use a 32-bit access.
  *
  * Enforce it on any 32-bit capable setup for now.
diff --git a/drivers/net/smsc911x.c b/drivers/net/smsc911x.c
index 1566259c1f27..c498b720b532 100644
--- a/drivers/net/smsc911x.c
+++ b/drivers/net/smsc911x.c
@@ -1669,7 +1669,7 @@ static int smsc911x_eeprom_send_cmd(struct smsc911x_data *pdata, u32 op)
 	}
 
 	if (e2cmd & E2P_CMD_EPC_TIMEOUT_) {
-		SMSC_TRACE(DRV, "Error occured during eeprom operation");
+		SMSC_TRACE(DRV, "Error occurred during eeprom operation");
 		return -EINVAL;
 	}
 
diff --git a/drivers/net/smsc9420.c b/drivers/net/smsc9420.c
index b09ee1c319e8..4c92ad8be765 100644
--- a/drivers/net/smsc9420.c
+++ b/drivers/net/smsc9420.c
@@ -364,7 +364,7 @@ static int smsc9420_eeprom_send_cmd(struct smsc9420_pdata *pd, u32 op)
 	}
 
 	if (e2cmd & E2P_CMD_EPC_TIMEOUT_) {
-		smsc_info(HW, "Error occured during eeprom operation");
+		smsc_info(HW, "Error occurred during eeprom operation");
 		return -EINVAL;
 	}
 
diff --git a/drivers/net/starfire.c b/drivers/net/starfire.c
index a4f2bd52e546..36045f3b0327 100644
--- a/drivers/net/starfire.c
+++ b/drivers/net/starfire.c
@@ -144,11 +144,7 @@ static int full_duplex[MAX_UNITS] = {0, };
 /* Time in jiffies before concluding the transmitter is hung. */
 #define TX_TIMEOUT	(2 * HZ)
 
-/*
- * This SUCKS.
- * We need a much better method to determine if dma_addr_t is 64-bit.
- */
-#if (defined(__i386__) && defined(CONFIG_HIGHMEM64G)) || defined(__x86_64__) || defined (__ia64__) || defined(__alpha__) || (defined(CONFIG_MIPS) && ((defined(CONFIG_HIGHMEM) && defined(CONFIG_64BIT_PHYS_ADDR)) || defined(CONFIG_64BIT))) || (defined(__powerpc64__) || defined(CONFIG_PHYS_64BIT))
+#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT
 /* 64-bit dma_addr_t */
 #define ADDR_64BITS	/* This chip uses 64 bit addresses. */
 #define netdrv_addr_t __le64
diff --git a/drivers/net/stmmac/norm_desc.c b/drivers/net/stmmac/norm_desc.c
index cd0cc76f7a1c..029c2a2cf524 100644
--- a/drivers/net/stmmac/norm_desc.c
+++ b/drivers/net/stmmac/norm_desc.c
@@ -67,7 +67,7 @@ static int ndesc_get_tx_len(struct dma_desc *p)
 
 /* This function verifies if each incoming frame has some errors
  * and, if required, updates the multicast statistics.
- * In case of success, it returns csum_none becasue the device
+ * In case of success, it returns csum_none because the device
  * is not able to compute the csum in HW. */
 static int ndesc_get_rx_status(void *data, struct stmmac_extra_stats *x,
 			       struct dma_desc *p)
diff --git a/drivers/net/sunbmac.h b/drivers/net/sunbmac.h
index 8db88945b889..4943e975a731 100644
--- a/drivers/net/sunbmac.h
+++ b/drivers/net/sunbmac.h
@@ -185,7 +185,7 @@
 #define BIGMAC_RXCFG_ENABLE    0x00000001 /* Enable the receiver                      */
 #define BIGMAC_RXCFG_FIFO      0x0000000e /* Default rx fthresh...                    */
 #define BIGMAC_RXCFG_PSTRIP    0x00000020 /* Pad byte strip enable                    */
-#define BIGMAC_RXCFG_PMISC     0x00000040 /* Enable promiscous mode                   */
+#define BIGMAC_RXCFG_PMISC     0x00000040 /* Enable promiscuous mode                   */
 #define BIGMAC_RXCFG_DERR      0x00000080 /* Disable error checking                   */
 #define BIGMAC_RXCFG_DCRCS     0x00000100 /* Disable CRC stripping                    */
 #define BIGMAC_RXCFG_ME        0x00000200 /* Receive packets addressed to me          */
diff --git a/drivers/net/sungem.c b/drivers/net/sungem.c
index c1a344829b54..d3be735c4719 100644
--- a/drivers/net/sungem.c
+++ b/drivers/net/sungem.c
@@ -1150,7 +1150,7 @@ static void gem_pcs_reinit_adv(struct gem *gp)
 	val &= ~(PCS_CFG_ENABLE | PCS_CFG_TO);
 	writel(val, gp->regs + PCS_CFG);
 
-	/* Advertise all capabilities except assymetric
+	/* Advertise all capabilities except asymmetric
 	 * pause.
 	 */
 	val = readl(gp->regs + PCS_MIIADV);
diff --git a/drivers/net/sunhme.h b/drivers/net/sunhme.h
index 756b5bf3aa89..64f278360d89 100644
--- a/drivers/net/sunhme.h
+++ b/drivers/net/sunhme.h
@@ -223,7 +223,7 @@
 /* BigMac receive config register. */
 #define BIGMAC_RXCFG_ENABLE   0x00000001 /* Enable the receiver             */
 #define BIGMAC_RXCFG_PSTRIP   0x00000020 /* Pad byte strip enable           */
-#define BIGMAC_RXCFG_PMISC    0x00000040 /* Enable promiscous mode          */
+#define BIGMAC_RXCFG_PMISC    0x00000040 /* Enable promiscuous mode          */
 #define BIGMAC_RXCFG_DERR     0x00000080 /* Disable error checking          */
 #define BIGMAC_RXCFG_DCRCS    0x00000100 /* Disable CRC stripping           */
 #define BIGMAC_RXCFG_REJME    0x00000200 /* Reject packets addressed to me  */
diff --git a/drivers/net/tc35815.c b/drivers/net/tc35815.c
index b6eec8cea209..7ca51cebcddd 100644
--- a/drivers/net/tc35815.c
+++ b/drivers/net/tc35815.c
@@ -119,13 +119,13 @@ struct tc35815_regs {
 /*
  * Bit assignments
  */
-/* DMA_Ctl bit asign ------------------------------------------------------- */
+/* DMA_Ctl bit assign ------------------------------------------------------- */
 #define DMA_RxAlign	       0x00c00000 /* 1:Reception Alignment	     */
 #define DMA_RxAlign_1	       0x00400000
 #define DMA_RxAlign_2	       0x00800000
 #define DMA_RxAlign_3	       0x00c00000
 #define DMA_M66EnStat	       0x00080000 /* 1:66MHz Enable State	     */
-#define DMA_IntMask	       0x00040000 /* 1:Interupt mask		     */
+#define DMA_IntMask	       0x00040000 /* 1:Interrupt mask		     */
 #define DMA_SWIntReq	       0x00020000 /* 1:Software Interrupt request    */
 #define DMA_TxWakeUp	       0x00010000 /* 1:Transmit Wake Up		     */
 #define DMA_RxBigE	       0x00008000 /* 1:Receive Big Endian	     */
@@ -134,11 +134,11 @@ struct tc35815_regs {
 #define DMA_PowrMgmnt	       0x00001000 /* 1:Power Management		     */
 #define DMA_DmBurst_Mask       0x000001fc /* DMA Burst size		     */
 
-/* RxFragSize bit asign ---------------------------------------------------- */
+/* RxFragSize bit assign ---------------------------------------------------- */
 #define RxFrag_EnPack	       0x00008000 /* 1:Enable Packing		     */
 #define RxFrag_MinFragMask     0x00000ffc /* Minimum Fragment		     */
 
-/* MAC_Ctl bit asign ------------------------------------------------------- */
+/* MAC_Ctl bit assign ------------------------------------------------------- */
 #define MAC_Link10	       0x00008000 /* 1:Link Status 10Mbits	     */
 #define MAC_EnMissRoll	       0x00002000 /* 1:Enable Missed Roll	     */
 #define MAC_MissRoll	       0x00000400 /* 1:Missed Roll		     */
@@ -152,7 +152,7 @@ struct tc35815_regs {
 #define MAC_HaltImm	       0x00000002 /* 1:Halt Immediate		     */
 #define MAC_HaltReq	       0x00000001 /* 1:Halt request		     */
 
-/* PROM_Ctl bit asign ------------------------------------------------------ */
+/* PROM_Ctl bit assign ------------------------------------------------------ */
 #define PROM_Busy	       0x00008000 /* 1:Busy (Start Operation)	     */
 #define PROM_Read	       0x00004000 /*10:Read operation		     */
 #define PROM_Write	       0x00002000 /*01:Write operation		     */
@@ -162,7 +162,7 @@ struct tc35815_regs {
 #define PROM_Addr_Ena	       0x00000030 /*11xxxx:PROM Write enable	     */
 					  /*00xxxx:	      disable	     */
 
-/* CAM_Ctl bit asign ------------------------------------------------------- */
+/* CAM_Ctl bit assign ------------------------------------------------------- */
 #define CAM_CompEn	       0x00000010 /* 1:CAM Compare Enable	     */
 #define CAM_NegCAM	       0x00000008 /* 1:Reject packets CAM recognizes,*/
 					  /*			accept other */
@@ -170,7 +170,7 @@ struct tc35815_regs {
 #define CAM_GroupAcc	       0x00000002 /* 1:Multicast assept		     */
 #define CAM_StationAcc	       0x00000001 /* 1:unicast accept		     */
 
-/* CAM_Ena bit asign ------------------------------------------------------- */
+/* CAM_Ena bit assign ------------------------------------------------------- */
 #define CAM_ENTRY_MAX		       21   /* CAM Data entry max count	     */
 #define CAM_Ena_Mask ((1<<CAM_ENTRY_MAX)-1) /* CAM Enable bits (Max 21bits)  */
 #define CAM_Ena_Bit(index)	(1 << (index))
@@ -178,7 +178,7 @@ struct tc35815_regs {
 #define CAM_ENTRY_SOURCE	1
 #define CAM_ENTRY_MACCTL	20
 
-/* Tx_Ctl bit asign -------------------------------------------------------- */
+/* Tx_Ctl bit assign -------------------------------------------------------- */
 #define Tx_En		       0x00000001 /* 1:Transmit enable		     */
 #define Tx_TxHalt	       0x00000002 /* 1:Transmit Halt Request	     */
 #define Tx_NoPad	       0x00000004 /* 1:Suppress Padding		     */
@@ -192,7 +192,7 @@ struct tc35815_regs {
 #define Tx_EnTxPar	       0x00002000 /* 1:Enable Transmit Parity	     */
 #define Tx_EnComp	       0x00004000 /* 1:Enable Completion	     */
 
-/* Tx_Stat bit asign ------------------------------------------------------- */
+/* Tx_Stat bit assign ------------------------------------------------------- */
 #define Tx_TxColl_MASK	       0x0000000F /* Tx Collision Count		     */
 #define Tx_ExColl	       0x00000010 /* Excessive Collision	     */
 #define Tx_TXDefer	       0x00000020 /* Transmit Defered		     */
@@ -208,7 +208,7 @@ struct tc35815_regs {
 #define Tx_Halted	       0x00008000 /* Tx Halted			     */
 #define Tx_SQErr	       0x00010000 /* Signal Quality Error(SQE)	     */
 
-/* Rx_Ctl bit asign -------------------------------------------------------- */
+/* Rx_Ctl bit assign -------------------------------------------------------- */
 #define Rx_EnGood	       0x00004000 /* 1:Enable Good		     */
 #define Rx_EnRxPar	       0x00002000 /* 1:Enable Receive Parity	     */
 #define Rx_EnLongErr	       0x00000800 /* 1:Enable Long Error	     */
@@ -222,7 +222,7 @@ struct tc35815_regs {
 #define Rx_RxHalt	       0x00000002 /* 1:Receive Halt Request	     */
 #define Rx_RxEn		       0x00000001 /* 1:Receive Intrrupt Enable	     */
 
-/* Rx_Stat bit asign ------------------------------------------------------- */
+/* Rx_Stat bit assign ------------------------------------------------------- */
 #define Rx_Halted	       0x00008000 /* Rx Halted			     */
 #define Rx_Good		       0x00004000 /* Rx Good			     */
 #define Rx_RxPar	       0x00002000 /* Rx Parity Error		     */
@@ -238,7 +238,7 @@ struct tc35815_regs {
 
 #define Rx_Stat_Mask	       0x0000FFF0 /* Rx All Status Mask		     */
 
-/* Int_En bit asign -------------------------------------------------------- */
+/* Int_En bit assign -------------------------------------------------------- */
 #define Int_NRAbtEn	       0x00000800 /* 1:Non-recoverable Abort Enable  */
 #define Int_TxCtlCmpEn	       0x00000400 /* 1:Transmit Ctl Complete Enable  */
 #define Int_DmParErrEn	       0x00000200 /* 1:DMA Parity Error Enable	     */
@@ -253,7 +253,7 @@ struct tc35815_regs {
 #define Int_FDAExEn	       0x00000001 /* 1:Free Descriptor Area	     */
 					  /*		   Exhausted Enable  */
 
-/* Int_Src bit asign ------------------------------------------------------- */
+/* Int_Src bit assign ------------------------------------------------------- */
 #define Int_NRabt	       0x00004000 /* 1:Non Recoverable error	     */
 #define Int_DmParErrStat       0x00002000 /* 1:DMA Parity Error & Clear	     */
 #define Int_BLEx	       0x00001000 /* 1:Buffer List Empty & Clear     */
@@ -270,8 +270,8 @@ struct tc35815_regs {
 #define Int_IntMacRx	       0x00000002 /* 1:Rx controller & Clear	     */
 #define Int_IntMacTx	       0x00000001 /* 1:Tx controller & Clear	     */
 
-/* MD_CA bit asign --------------------------------------------------------- */
-#define MD_CA_PreSup	       0x00001000 /* 1:Preamble Supress		     */
+/* MD_CA bit assign --------------------------------------------------------- */
+#define MD_CA_PreSup	       0x00001000 /* 1:Preamble Suppress		     */
 #define MD_CA_Busy	       0x00000800 /* 1:Busy (Start Operation)	     */
 #define MD_CA_Wr	       0x00000400 /* 1:Write 0:Read		     */
 
@@ -296,7 +296,7 @@ struct BDesc {
 
 #define FD_ALIGN	16
 
-/* Frame Descripter bit asign ---------------------------------------------- */
+/* Frame Descripter bit assign ---------------------------------------------- */
 #define FD_FDLength_MASK       0x0000FFFF /* Length MASK		     */
 #define FD_BDCnt_MASK	       0x001F0000 /* BD count MASK in FD	     */
 #define FD_FrmOpt_MASK	       0x7C000000 /* Frame option MASK		     */
@@ -309,8 +309,8 @@ struct BDesc {
 #define FD_Next_EOL	       0x00000001 /* FD EOL indicator		     */
 #define FD_BDCnt_SHIFT	       16
 
-/* Buffer Descripter bit asign --------------------------------------------- */
-#define BD_BuffLength_MASK     0x0000FFFF /* Recieve Data Size		     */
+/* Buffer Descripter bit assign --------------------------------------------- */
+#define BD_BuffLength_MASK     0x0000FFFF /* Receive Data Size		     */
 #define BD_RxBDID_MASK	       0x00FF0000 /* BD ID Number MASK		     */
 #define BD_RxBDSeqN_MASK       0x7F000000 /* Rx BD Sequence Number	     */
 #define BD_CownsBD	       0x80000000 /* BD Controller owner bit	     */
@@ -339,7 +339,7 @@ struct BDesc {
 #define TX_THRESHOLD	1024
 /* used threshold with packet max byte for low pci transfer ability.*/
 #define TX_THRESHOLD_MAX 1536
-/* setting threshold max value when overrun error occured this count. */
+/* setting threshold max value when overrun error occurred this count. */
 #define TX_THRESHOLD_KEEP_LIMIT 10
 
 /* 16 + RX_BUF_NUM * 8 + RX_FD_NUM * 16 + TX_FD_NUM * 32 <= PAGE_SIZE*FD_PAGE_NUM */
diff --git a/drivers/net/tehuti.c b/drivers/net/tehuti.c
index 3397618d4d96..8564ec5cfb7f 100644
--- a/drivers/net/tehuti.c
+++ b/drivers/net/tehuti.c
@@ -645,7 +645,7 @@ static int bdx_ioctl_priv(struct net_device *ndev, struct ifreq *ifr, int cmd)
 	if (cmd != SIOCDEVPRIVATE) {
 		error = copy_from_user(data, ifr->ifr_data, sizeof(data));
 		if (error) {
-			pr_err("cant copy from user\n");
+			pr_err("can't copy from user\n");
 			RET(-EFAULT);
 		}
 		DBG("%d 0x%x 0x%x\n", data[0], data[1], data[2]);
@@ -999,7 +999,7 @@ static inline void bdx_rxdb_free_elem(struct rxdb *db, int n)
  *
  * RxD fifo is smaller than RxF fifo by design. Upon high load, RxD will be
  * filled and packets will be dropped by nic without getting into host or
- * cousing interrupt. Anyway, in that condition, host has no chance to proccess
+ * cousing interrupt. Anyway, in that condition, host has no chance to process
  * all packets, but dropping in nic is cheaper, since it takes 0 cpu cycles
  */
 
@@ -1200,8 +1200,8 @@ static void bdx_recycle_skb(struct bdx_priv *priv, struct rxd_desc *rxdd)
 	RET();
 }
 
-/* bdx_rx_receive - recieves full packets from RXD fifo and pass them to OS
- * NOTE: a special treatment is given to non-continous descriptors
+/* bdx_rx_receive - receives full packets from RXD fifo and pass them to OS
+ * NOTE: a special treatment is given to non-continuous descriptors
  * that start near the end, wraps around and continue at the beginning. a second
  * part is copied right after the first, and then descriptor is interpreted as
  * normal. fifo has an extra space to allow such operations
@@ -1584,9 +1584,9 @@ err_mem:
 }
 
 /*
- * bdx_tx_space - calculates avalable space in TX fifo
+ * bdx_tx_space - calculates available space in TX fifo
  * @priv - NIC private structure
- * Returns avaliable space in TX fifo in bytes
+ * Returns available space in TX fifo in bytes
  */
 static inline int bdx_tx_space(struct bdx_priv *priv)
 {
diff --git a/drivers/net/tehuti.h b/drivers/net/tehuti.h
index b6ba8601e2b5..c5642fefc9e7 100644
--- a/drivers/net/tehuti.h
+++ b/drivers/net/tehuti.h
@@ -502,7 +502,7 @@ struct txd_desc {
 #define  GMAC_RX_FILTER_ACRC  0x0010	/* accept crc error */
 #define  GMAC_RX_FILTER_AM    0x0008	/* accept multicast */
 #define  GMAC_RX_FILTER_AB    0x0004	/* accept broadcast */
-#define  GMAC_RX_FILTER_PRM   0x0001	/* [0:1] promiscous mode */
+#define  GMAC_RX_FILTER_PRM   0x0001	/* [0:1] promiscuous mode */
 
 #define  MAX_FRAME_AB_VAL       0x3fff	/* 13:0 */
 
diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index ebec88882c3b..b8c5f35577e4 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -48,9 +48,9 @@
 #include <net/ip.h>
 
 #include <asm/system.h>
-#include <asm/io.h>
+#include <linux/io.h>
 #include <asm/byteorder.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
 
 #ifdef CONFIG_SPARC
 #include <asm/idprom.h>
@@ -9712,7 +9712,7 @@ static int tg3_get_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom,
 		eeprom->len += b_count;
 	}
 
-	/* read bytes upto the last 4 byte boundary */
+	/* read bytes up to the last 4 byte boundary */
 	pd = &data[eeprom->len];
 	for (i = 0; i < (len - (len & 3)); i += 4) {
 		ret = tg3_nvram_read_be32(tp, offset + i, &val);
@@ -13118,7 +13118,7 @@ done:
 
 static struct pci_dev * __devinit tg3_find_peer(struct tg3 *);
 
-static void inline vlan_features_add(struct net_device *dev, unsigned long flags)
+static inline void vlan_features_add(struct net_device *dev, unsigned long flags)
 {
 	dev->vlan_features |= flags;
 }
diff --git a/drivers/net/tg3.h b/drivers/net/tg3.h
index 73884b69b749..5e96706ad108 100644
--- a/drivers/net/tg3.h
+++ b/drivers/net/tg3.h
@@ -2130,7 +2130,7 @@
 #define MII_TG3_DSP_EXP96		0x0f96
 #define MII_TG3_DSP_EXP97		0x0f97
 
-#define MII_TG3_AUX_CTRL		0x18 /* auxilliary control register */
+#define MII_TG3_AUX_CTRL		0x18 /* auxiliary control register */
 
 #define MII_TG3_AUXCTL_PCTL_100TX_LPWR	0x0010
 #define MII_TG3_AUXCTL_PCTL_SPR_ISOLATE	0x0020
@@ -2146,7 +2146,7 @@
 #define MII_TG3_AUXCTL_ACTL_TX_6DB	0x0400
 #define MII_TG3_AUXCTL_SHDWSEL_AUXCTL	0x0000
 
-#define MII_TG3_AUX_STAT		0x19 /* auxilliary status register */
+#define MII_TG3_AUX_STAT		0x19 /* auxiliary status register */
 #define MII_TG3_AUX_STAT_LPASS		0x0004
 #define MII_TG3_AUX_STAT_SPDMASK	0x0700
 #define MII_TG3_AUX_STAT_10HALF		0x0100
diff --git a/drivers/net/tokenring/3c359.c b/drivers/net/tokenring/3c359.c
index 10800f16a231..8a3b191b195b 100644
--- a/drivers/net/tokenring/3c359.c
+++ b/drivers/net/tokenring/3c359.c
@@ -208,7 +208,7 @@ static void print_rx_state(struct net_device *dev)
  *	passing/getting the next value from the nic. As with all requests
  *	on this nic it has to be done in two stages, a) tell the nic which
  *	memory address you want to access and b) pass/get the value from the nic.
- *	With the EEProm, you have to wait before and inbetween access a) and b).
+ *	With the EEProm, you have to wait before and between access a) and b).
  *	As this is only read at initialization time and the wait period is very 
  *	small we shouldn't have to worry about scheduling issues.
  */
diff --git a/drivers/net/tokenring/madgemc.c b/drivers/net/tokenring/madgemc.c
index 785ad1a2157b..2bedc0ace812 100644
--- a/drivers/net/tokenring/madgemc.c
+++ b/drivers/net/tokenring/madgemc.c
@@ -73,7 +73,7 @@ static void madgemc_setint(struct net_device *dev, int val);
 static irqreturn_t madgemc_interrupt(int irq, void *dev_id);
 
 /*
- * These work around paging, however they don't guarentee you're on the
+ * These work around paging, however they don't guarantee you're on the
  * right page.
  */
 #define SIFREADB(reg) (inb(dev->base_addr + ((reg<0x8)?reg:reg-0x8)))
@@ -387,7 +387,7 @@ getout:
  * both with their own disadvantages...
  *
  * 1)  	Read in the SIFSTS register from the TMS controller.  This
- *	is guarenteed to be accurate, however, there's a fairly
+ *	is guaranteed to be accurate, however, there's a fairly
  *	large performance penalty for doing so: the Madge chips
  *	must request the register from the Eagle, the Eagle must
  *	read them from its internal bus, and then take the route
@@ -454,7 +454,7 @@ static irqreturn_t madgemc_interrupt(int irq, void *dev_id)
 }
 
 /*
- * Set the card to the prefered ring speed.
+ * Set the card to the preferred ring speed.
  *
  * Unlike newer cards, the MC16/32 have their speed selection
  * circuit connected to the Madge ASICs and not to the TMS380
diff --git a/drivers/net/tokenring/smctr.c b/drivers/net/tokenring/smctr.c
index 63db5a6762ae..d9044aba7afa 100644
--- a/drivers/net/tokenring/smctr.c
+++ b/drivers/net/tokenring/smctr.c
@@ -393,7 +393,7 @@ static int smctr_alloc_shared_memory(struct net_device *dev)
         tp->rx_bdb_end[NON_MAC_QUEUE] = (BDBlock *)smctr_malloc(dev, 0);
 
         /* Allocate MAC transmit buffers.
-         * MAC Tx Buffers doen't have to be on an ODD Boundry.
+         * MAC Tx Buffers doen't have to be on an ODD Boundary.
          */
         tp->tx_buff_head[MAC_QUEUE]
                 = (__u16 *)smctr_malloc(dev, tp->tx_buff_size[MAC_QUEUE]);
@@ -415,7 +415,7 @@ static int smctr_alloc_shared_memory(struct net_device *dev)
 
         /* Allocate Non-MAC transmit buffers.
          * ?? For maximum Netware performance, put Tx Buffers on
-         * ODD Boundry and then restore malloc to Even Boundrys.
+         * ODD Boundary and then restore malloc to Even Boundrys.
          */
         smctr_malloc(dev, 1L);
         tp->tx_buff_head[NON_MAC_QUEUE]
@@ -1311,7 +1311,7 @@ static unsigned int smctr_get_num_rx_bdbs(struct net_device *dev)
         mem_used += sizeof(BDBlock) * tp->num_rx_bdbs[MAC_QUEUE];
 
         /* Allocate MAC transmit buffers.
-         * MAC transmit buffers don't have to be on an ODD Boundry.
+         * MAC transmit buffers don't have to be on an ODD Boundary.
          */
         mem_used += tp->tx_buff_size[MAC_QUEUE];
 
@@ -1325,7 +1325,7 @@ static unsigned int smctr_get_num_rx_bdbs(struct net_device *dev)
 
         /* Allocate Non-MAC transmit buffers.
          * For maximum Netware performance, put Tx Buffers on
-         * ODD Boundry,and then restore malloc to Even Boundrys.
+         * ODD Boundary,and then restore malloc to Even Boundrys.
          */
         mem_used += 1L;
         mem_used += tp->tx_buff_size[NON_MAC_QUEUE];
@@ -3069,8 +3069,8 @@ static int smctr_load_node_addr(struct net_device *dev)
  * disabled.!?
  *
  * NOTE 2: If the monitor_state is MS_BEACON_TEST_STATE and the receive_mask
- * has any multi-cast or promiscous bits set, the receive_mask needs to
- * be changed to clear the multi-cast or promiscous mode bits, the lobe_test
+ * has any multi-cast or promiscuous bits set, the receive_mask needs to
+ * be changed to clear the multi-cast or promiscuous mode bits, the lobe_test
  * run, and then the receive mask set back to its original value if the test
  * is successful.
  */
diff --git a/drivers/net/tokenring/tms380tr.h b/drivers/net/tokenring/tms380tr.h
index 60b30ee38dcb..e5a617c586c2 100644
--- a/drivers/net/tokenring/tms380tr.h
+++ b/drivers/net/tokenring/tms380tr.h
@@ -442,7 +442,7 @@ typedef struct {
 #define PASS_FIRST_BUF_ONLY	0x0100	/* Passes only first internal buffer
 					 * of each received frame; FrameSize
 					 * of RPLs must contain internal
-					 * BUFFER_SIZE bits for promiscous mode.
+					 * BUFFER_SIZE bits for promiscuous mode.
 					 */
 #define ENABLE_FULL_DUPLEX_SELECTION	0x2000 
  					/* Enable the use of full-duplex
diff --git a/drivers/net/tsi108_eth.h b/drivers/net/tsi108_eth.h
index 5a77ae6c5f36..5fee7d78dc6d 100644
--- a/drivers/net/tsi108_eth.h
+++ b/drivers/net/tsi108_eth.h
@@ -305,9 +305,9 @@
 #define TSI108_TX_CRC	(1 << 5)	/* Generate CRC for this packet */
 #define TSI108_TX_INT	(1 << 14)	/* Generate an IRQ after frag. processed */
 #define TSI108_TX_RETRY	(0xf << 16)	/* 4 bit field indicating num. of retries */
-#define TSI108_TX_COL	(1 << 20)	/* Set if a collision occured */
-#define TSI108_TX_LCOL	(1 << 24)	/* Set if a late collision occured */
-#define TSI108_TX_UNDER	(1 << 25)	/* Set if a FIFO underrun occured */
+#define TSI108_TX_COL	(1 << 20)	/* Set if a collision occurred */
+#define TSI108_TX_LCOL	(1 << 24)	/* Set if a late collision occurred */
+#define TSI108_TX_UNDER	(1 << 25)	/* Set if a FIFO underrun occurred */
 #define TSI108_TX_RLIM	(1 << 26)	/* Set if the retry limit was reached */
 #define TSI108_TX_OK	(1 << 30)	/* Set if the frame TX was successful */
 #define TSI108_TX_OWN	(1 << 31)	/* Set if the device owns the descriptor */
@@ -332,7 +332,7 @@ typedef struct {
 #define TSI108_RX_RUNT	(1 << 4)/* Packet is less than minimum size */
 #define TSI108_RX_HASH	(1 << 7)/* Hash table match */
 #define TSI108_RX_BAD	(1 << 8)	/* Bad frame */
-#define TSI108_RX_OVER	(1 << 9)	/* FIFO overrun occured */
+#define TSI108_RX_OVER	(1 << 9)	/* FIFO overrun occurred */
 #define TSI108_RX_TRUNC	(1 << 11)	/* Packet truncated due to excess length */
 #define TSI108_RX_CRC	(1 << 12)	/* Packet had a CRC error */
 #define TSI108_RX_INT	(1 << 13)	/* Generate an IRQ after frag. processed */
diff --git a/drivers/net/tulip/de4x5.c b/drivers/net/tulip/de4x5.c
index 4dbd493b996b..efaa1d69b720 100644
--- a/drivers/net/tulip/de4x5.c
+++ b/drivers/net/tulip/de4x5.c
@@ -79,7 +79,7 @@
     every  usable DECchip board,  I  pinched Donald's 'next_module' field to
     link my modules together.
 
-    Upto 15 EISA cards can be supported under this driver, limited primarily
+    Up to 15 EISA cards can be supported under this driver, limited primarily
     by the available IRQ lines.  I have  checked different configurations of
     multiple depca, EtherWORKS 3 cards and de4x5 cards and  have not found a
     problem yet (provided you have at least depca.c v0.38) ...
@@ -517,7 +517,7 @@ struct mii_phy {
     u_int mci;              /* 21142 MII Connector Interrupt info        */
 };
 
-#define DE4X5_MAX_PHY 8     /* Allow upto 8 attached PHY devices per board */
+#define DE4X5_MAX_PHY 8     /* Allow up to 8 attached PHY devices per board */
 
 struct sia_phy {
     u_char mc;              /* Media Code                                */
@@ -1436,7 +1436,7 @@ de4x5_sw_reset(struct net_device *dev)
 
     /* Poll for setup frame completion (adapter interrupts are disabled now) */
 
-    for (j=0, i=0;(i<500) && (j==0);i++) {       /* Upto 500ms delay */
+    for (j=0, i=0;(i<500) && (j==0);i++) {       /* Up to 500ms delay */
 	mdelay(1);
 	if ((s32)le32_to_cpu(lp->tx_ring[lp->tx_new].status) >= 0) j=1;
     }
diff --git a/drivers/net/tulip/dmfe.c b/drivers/net/tulip/dmfe.c
index 7064e035757a..fb07f48910ae 100644
--- a/drivers/net/tulip/dmfe.c
+++ b/drivers/net/tulip/dmfe.c
@@ -1224,7 +1224,7 @@ static void dmfe_timer(unsigned long data)
 
 
 	/* If chip reports that link is failed it could be because external
-		PHY link status pin is not conected correctly to chip
+		PHY link status pin is not connected correctly to chip
 		To be sure ask PHY too.
 	*/
 
diff --git a/drivers/net/tulip/eeprom.c b/drivers/net/tulip/eeprom.c
index 3031ed9c4a1a..296486bf0956 100644
--- a/drivers/net/tulip/eeprom.c
+++ b/drivers/net/tulip/eeprom.c
@@ -115,7 +115,7 @@ static void __devinit tulip_build_fake_mediatable(struct tulip_private *tp)
 			  0x02,       /* phy reset sequence length */
 			  0x01, 0x00, /* phy reset sequence */
 			  0x00, 0x78, /* media capabilities */
-			  0x00, 0xe0, /* nway advertisment */
+			  0x00, 0xe0, /* nway advertisement */
 			  0x00, 0x05, /* fdx bit map */
 			  0x00, 0x06  /* ttm bit map */
 			};
diff --git a/drivers/net/typhoon.c b/drivers/net/typhoon.c
index 7fa5ec2de942..82653cb07857 100644
--- a/drivers/net/typhoon.c
+++ b/drivers/net/typhoon.c
@@ -846,7 +846,7 @@ typhoon_start_tx(struct sk_buff *skb, struct net_device *dev)
 	if(typhoon_num_free_tx(txRing) < (numDesc + 2)) {
 		netif_stop_queue(dev);
 
-		/* A Tx complete IRQ could have gotten inbetween, making
+		/* A Tx complete IRQ could have gotten between, making
 		 * the ring free again. Only need to recheck here, since
 		 * Tx is serialized.
 		 */
diff --git a/drivers/net/ucc_geth.h b/drivers/net/ucc_geth.h
index 055b87ab4f07..d12fcad145e9 100644
--- a/drivers/net/ucc_geth.h
+++ b/drivers/net/ucc_geth.h
@@ -80,7 +80,7 @@ struct ucc_geth {
 				   frames) received that were between 128
 				   (Including FCS length==4) and 255 octets */
 	u32 txok;		/* Total number of octets residing in frames
-				   that where involved in successfull
+				   that where involved in successful
 				   transmission */
 	u16 txcf;		/* Total number of PAUSE control frames
 				   transmitted by this MAC */
@@ -759,7 +759,7 @@ struct ucc_geth_hardware_statistics {
 				   frames) received that were between 128
 				   (Including FCS length==4) and 255 octets */
 	u32 txok;		/* Total number of octets residing in frames
-				   that where involved in successfull
+				   that where involved in successful
 				   transmission */
 	u16 txcf;		/* Total number of PAUSE control frames
 				   transmitted by this MAC */
diff --git a/drivers/net/usb/Kconfig b/drivers/net/usb/Kconfig
index 6f600cced6e1..3ec22c307797 100644
--- a/drivers/net/usb/Kconfig
+++ b/drivers/net/usb/Kconfig
@@ -433,4 +433,19 @@ config USB_SIERRA_NET
 	  To compile this driver as a module, choose M here: the
 	  module will be called sierra_net.
 
+config USB_VL600
+	tristate "LG VL600 modem dongle"
+	depends on USB_NET_CDCETHER
+	select USB_ACM
+	help
+	  Select this if you want to use an LG Electronics 4G/LTE usb modem
+	  called VL600.  This driver only handles the ethernet
+	  interface exposed by the modem firmware.  To establish a connection
+	  you will first need a userspace program that sends the right
+	  command to the modem through its CDC ACM port, and most
+	  likely also a DHCP client.  See this thread about using the
+	  4G modem from Verizon:
+
+	  http://ubuntuforums.org/showpost.php?p=10589647&postcount=17
+
 endmenu
diff --git a/drivers/net/usb/Makefile b/drivers/net/usb/Makefile
index cac170301187..c7ec8a5f0a90 100644
--- a/drivers/net/usb/Makefile
+++ b/drivers/net/usb/Makefile
@@ -27,4 +27,5 @@ obj-$(CONFIG_USB_IPHETH)	+= ipheth.o
 obj-$(CONFIG_USB_SIERRA_NET)	+= sierra_net.o
 obj-$(CONFIG_USB_NET_CX82310_ETH)	+= cx82310_eth.o
 obj-$(CONFIG_USB_NET_CDC_NCM)	+= cdc_ncm.o
+obj-$(CONFIG_USB_VL600)		+= lg-vl600.o
 
diff --git a/drivers/net/usb/cdc_eem.c b/drivers/net/usb/cdc_eem.c
index 5f3b97668e63..882f53f708df 100644
--- a/drivers/net/usb/cdc_eem.c
+++ b/drivers/net/usb/cdc_eem.c
@@ -190,7 +190,7 @@ static int eem_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
 
 		/*
 		 * EEM packet header format:
-		 * b0..14:	EEM type dependant (Data or Command)
+		 * b0..14:	EEM type dependent (Data or Command)
 		 * b15:		bmType
 		 */
 		header = get_unaligned_le16(skb->data);
@@ -340,7 +340,7 @@ next:
 
 static const struct driver_info eem_info = {
 	.description =	"CDC EEM Device",
-	.flags =	FLAG_ETHER,
+	.flags =	FLAG_ETHER | FLAG_POINTTOPOINT,
 	.bind =		eem_bind,
 	.rx_fixup =	eem_rx_fixup,
 	.tx_fixup =	eem_tx_fixup,
diff --git a/drivers/net/usb/cdc_ether.c b/drivers/net/usb/cdc_ether.c
index 9a60e415d76b..341f7056a800 100644
--- a/drivers/net/usb/cdc_ether.c
+++ b/drivers/net/usb/cdc_ether.c
@@ -378,7 +378,7 @@ static void dumpspeed(struct usbnet *dev, __le32 *speeds)
 		   __le32_to_cpu(speeds[1]) / 1000);
 }
 
-static void cdc_status(struct usbnet *dev, struct urb *urb)
+void usbnet_cdc_status(struct usbnet *dev, struct urb *urb)
 {
 	struct usb_cdc_notification	*event;
 
@@ -418,8 +418,9 @@ static void cdc_status(struct usbnet *dev, struct urb *urb)
 		break;
 	}
 }
+EXPORT_SYMBOL_GPL(usbnet_cdc_status);
 
-static int cdc_bind(struct usbnet *dev, struct usb_interface *intf)
+int usbnet_cdc_bind(struct usbnet *dev, struct usb_interface *intf)
 {
 	int				status;
 	struct cdc_state		*info = (void *) &dev->data;
@@ -441,6 +442,7 @@ static int cdc_bind(struct usbnet *dev, struct usb_interface *intf)
 	 */
 	return 0;
 }
+EXPORT_SYMBOL_GPL(usbnet_cdc_bind);
 
 static int cdc_manage_power(struct usbnet *dev, int on)
 {
@@ -450,20 +452,20 @@ static int cdc_manage_power(struct usbnet *dev, int on)
 
 static const struct driver_info	cdc_info = {
 	.description =	"CDC Ethernet Device",
-	.flags =	FLAG_ETHER,
+	.flags =	FLAG_ETHER | FLAG_POINTTOPOINT,
 	// .check_connect = cdc_check_connect,
-	.bind =		cdc_bind,
+	.bind =		usbnet_cdc_bind,
 	.unbind =	usbnet_cdc_unbind,
-	.status =	cdc_status,
+	.status =	usbnet_cdc_status,
 	.manage_power =	cdc_manage_power,
 };
 
 static const struct driver_info mbm_info = {
 	.description =	"Mobile Broadband Network Device",
 	.flags =	FLAG_WWAN,
-	.bind = 	cdc_bind,
+	.bind =		usbnet_cdc_bind,
 	.unbind =	usbnet_cdc_unbind,
-	.status =	cdc_status,
+	.status =	usbnet_cdc_status,
 	.manage_power =	cdc_manage_power,
 };
 
@@ -560,6 +562,13 @@ static const struct usb_device_id	products [] = {
 	.driver_info		= 0,
 },
 
+/* LG Electronics VL600 wants additional headers on every frame */
+{
+	USB_DEVICE_AND_INTERFACE_INFO(0x1004, 0x61aa, USB_CLASS_COMM,
+			USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
+	.driver_info		= 0,
+},
+
 /*
  * WHITELIST!!!
  *
diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c
index 7113168473cf..967371f04454 100644
--- a/drivers/net/usb/cdc_ncm.c
+++ b/drivers/net/usb/cdc_ncm.c
@@ -1237,7 +1237,7 @@ static int cdc_ncm_manage_power(struct usbnet *dev, int status)
 
 static const struct driver_info cdc_ncm_info = {
 	.description = "CDC NCM",
-	.flags = FLAG_NO_SETINT | FLAG_MULTI_PACKET,
+	.flags = FLAG_POINTTOPOINT | FLAG_NO_SETINT | FLAG_MULTI_PACKET,
 	.bind = cdc_ncm_bind,
 	.unbind = cdc_ncm_unbind,
 	.check_connect = cdc_ncm_check_connect,
diff --git a/drivers/net/usb/cdc_subset.c b/drivers/net/usb/cdc_subset.c
index ca39ace0b0eb..fc5f13d47ad9 100644
--- a/drivers/net/usb/cdc_subset.c
+++ b/drivers/net/usb/cdc_subset.c
@@ -89,6 +89,7 @@ static int always_connected (struct usbnet *dev)
 
 static const struct driver_info	ali_m5632_info = {
 	.description =	"ALi M5632",
+	.flags       = FLAG_POINTTOPOINT,
 };
 
 #endif
@@ -110,6 +111,7 @@ static const struct driver_info	ali_m5632_info = {
 
 static const struct driver_info	an2720_info = {
 	.description =	"AnchorChips/Cypress 2720",
+	.flags       = FLAG_POINTTOPOINT,
 	// no reset available!
 	// no check_connect available!
 
@@ -132,6 +134,7 @@ static const struct driver_info	an2720_info = {
 
 static const struct driver_info	belkin_info = {
 	.description =	"Belkin, eTEK, or compatible",
+	.flags       = FLAG_POINTTOPOINT,
 };
 
 #endif	/* CONFIG_USB_BELKIN */
@@ -157,6 +160,7 @@ static const struct driver_info	belkin_info = {
 static const struct driver_info	epson2888_info = {
 	.description =	"Epson USB Device",
 	.check_connect = always_connected,
+	.flags = FLAG_POINTTOPOINT,
 
 	.in = 4, .out = 3,
 };
@@ -173,6 +177,7 @@ static const struct driver_info	epson2888_info = {
 #define HAVE_HARDWARE
 static const struct driver_info kc2190_info = {
 	.description =  "KC Technology KC-190",
+	.flags = FLAG_POINTTOPOINT,
 };
 #endif /* CONFIG_USB_KC2190 */
 
@@ -200,16 +205,19 @@ static const struct driver_info kc2190_info = {
 static const struct driver_info	linuxdev_info = {
 	.description =	"Linux Device",
 	.check_connect = always_connected,
+	.flags = FLAG_POINTTOPOINT,
 };
 
 static const struct driver_info	yopy_info = {
 	.description =	"Yopy",
 	.check_connect = always_connected,
+	.flags = FLAG_POINTTOPOINT,
 };
 
 static const struct driver_info	blob_info = {
 	.description =	"Boot Loader OBject",
 	.check_connect = always_connected,
+	.flags = FLAG_POINTTOPOINT,
 };
 
 #endif	/* CONFIG_USB_ARMLINUX */
diff --git a/drivers/net/usb/gl620a.c b/drivers/net/usb/gl620a.c
index dcd57c37ef73..c4cfd1dea881 100644
--- a/drivers/net/usb/gl620a.c
+++ b/drivers/net/usb/gl620a.c
@@ -193,7 +193,7 @@ static int genelink_bind(struct usbnet *dev, struct usb_interface *intf)
 
 static const struct driver_info	genelink_info = {
 	.description =	"Genesys GeneLink",
-	.flags =	FLAG_FRAMING_GL | FLAG_NO_SETINT,
+	.flags =	FLAG_POINTTOPOINT | FLAG_FRAMING_GL | FLAG_NO_SETINT,
 	.bind =		genelink_bind,
 	.rx_fixup =	genelink_rx_fixup,
 	.tx_fixup =	genelink_tx_fixup,
diff --git a/drivers/net/usb/kaweth.c b/drivers/net/usb/kaweth.c
index 7dc84971f26f..ad0298f9b5f9 100644
--- a/drivers/net/usb/kaweth.c
+++ b/drivers/net/usb/kaweth.c
@@ -1221,7 +1221,7 @@ static void kaweth_disconnect(struct usb_interface *intf)
 
 	usb_set_intfdata(intf, NULL);
 	if (!kaweth) {
-		dev_warn(&intf->dev, "unregistering non-existant device\n");
+		dev_warn(&intf->dev, "unregistering non-existent device\n");
 		return;
 	}
 	netdev = kaweth->net;
diff --git a/drivers/net/usb/lg-vl600.c b/drivers/net/usb/lg-vl600.c
new file mode 100644
index 000000000000..1d83ccfd7277
--- /dev/null
+++ b/drivers/net/usb/lg-vl600.c
@@ -0,0 +1,346 @@
+/*
+ * Ethernet interface part of the LG VL600 LTE modem (4G dongle)
+ *
+ * Copyright (C) 2011 Intel Corporation
+ * Author: Andrzej Zaborowski <balrogg@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+#include <linux/etherdevice.h>
+#include <linux/ethtool.h>
+#include <linux/mii.h>
+#include <linux/usb.h>
+#include <linux/usb/cdc.h>
+#include <linux/usb/usbnet.h>
+#include <linux/if_ether.h>
+#include <linux/if_arp.h>
+#include <linux/inetdevice.h>
+
+/*
+ * The device has a CDC ACM port for modem control (it claims to be
+ * CDC ACM anyway) and a CDC Ethernet port for actual network data.
+ * It will however ignore data on both ports that is not encapsulated
+ * in a specific way, any data returned is also encapsulated the same
+ * way.  The headers don't seem to follow any popular standard.
+ *
+ * This driver adds and strips these headers from the ethernet frames
+ * sent/received from the CDC Ethernet port.  The proprietary header
+ * replaces the standard ethernet header in a packet so only actual
+ * ethernet frames are allowed.  The headers allow some form of
+ * multiplexing by using non standard values of the .h_proto field.
+ * Windows/Mac drivers do send a couple of such frames to the device
+ * during initialisation, with protocol set to 0x0906 or 0x0b06 and (what
+ * seems to be) a flag in the .dummy_flags.  This doesn't seem necessary
+ * for modem operation but can possibly be used for GPS or other funcitons.
+ */
+
+struct vl600_frame_hdr {
+	__le32 len;
+	__le32 serial;
+	__le32 pkt_cnt;
+	__le32 dummy_flags;
+	__le32 dummy;
+	__le32 magic;
+} __attribute__((packed));
+
+struct vl600_pkt_hdr {
+	__le32 dummy[2];
+	__le32 len;
+	__be16 h_proto;
+} __attribute__((packed));
+
+struct vl600_state {
+	struct sk_buff *current_rx_buf;
+};
+
+static int vl600_bind(struct usbnet *dev, struct usb_interface *intf)
+{
+	int ret;
+	struct vl600_state *s = kzalloc(sizeof(struct vl600_state), GFP_KERNEL);
+
+	if (!s)
+		return -ENOMEM;
+
+	ret = usbnet_cdc_bind(dev, intf);
+	if (ret) {
+		kfree(s);
+		return ret;
+	}
+
+	dev->driver_priv = s;
+
+	/* ARP packets don't go through, but they're also of no use.  The
+	 * subnet has only two hosts anyway: us and the gateway / DHCP
+	 * server (probably simulated by modem firmware or network operator)
+	 * whose address changes everytime we connect to the intarwebz and
+	 * who doesn't bother answering ARP requests either.  So hardware
+	 * addresses have no meaning, the destination and the source of every
+	 * packet depend only on whether it is on the IN or OUT endpoint.  */
+	dev->net->flags |= IFF_NOARP;
+
+	return ret;
+}
+
+static void vl600_unbind(struct usbnet *dev, struct usb_interface *intf)
+{
+	struct vl600_state *s = dev->driver_priv;
+
+	if (s->current_rx_buf)
+		dev_kfree_skb(s->current_rx_buf);
+
+	kfree(s);
+
+	return usbnet_cdc_unbind(dev, intf);
+}
+
+static int vl600_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
+{
+	struct vl600_frame_hdr *frame;
+	struct vl600_pkt_hdr *packet;
+	struct ethhdr *ethhdr;
+	int packet_len, count;
+	struct sk_buff *buf = skb;
+	struct sk_buff *clone;
+	struct vl600_state *s = dev->driver_priv;
+
+	/* Frame lengths are generally 4B multiplies but every couple of
+	 * hours there's an odd number of bytes sized yet correct frame,
+	 * so don't require this.  */
+
+	/* Allow a packet (or multiple packets batched together) to be
+	 * split across many frames.  We don't allow a new batch to
+	 * begin in the same frame another one is ending however, and no
+	 * leading or trailing pad bytes.  */
+	if (s->current_rx_buf) {
+		frame = (struct vl600_frame_hdr *) s->current_rx_buf->data;
+		if (skb->len + s->current_rx_buf->len >
+				le32_to_cpup(&frame->len)) {
+			netif_err(dev, ifup, dev->net, "Fragment too long\n");
+			dev->net->stats.rx_length_errors++;
+			goto error;
+		}
+
+		buf = s->current_rx_buf;
+		memcpy(skb_put(buf, skb->len), skb->data, skb->len);
+	} else if (skb->len < 4) {
+		netif_err(dev, ifup, dev->net, "Frame too short\n");
+		dev->net->stats.rx_length_errors++;
+		goto error;
+	}
+
+	frame = (struct vl600_frame_hdr *) buf->data;
+	/* NOTE: Should check that frame->magic == 0x53544448?
+	 * Otherwise if we receive garbage at the beginning of the frame
+	 * we may end up allocating a huge buffer and saving all the
+	 * future incoming data into it.  */
+
+	if (buf->len < sizeof(*frame) ||
+			buf->len != le32_to_cpup(&frame->len)) {
+		/* Save this fragment for later assembly */
+		if (s->current_rx_buf)
+			return 0;
+
+		s->current_rx_buf = skb_copy_expand(skb, 0,
+				le32_to_cpup(&frame->len), GFP_ATOMIC);
+		if (!s->current_rx_buf) {
+			netif_err(dev, ifup, dev->net, "Reserving %i bytes "
+					"for packet assembly failed.\n",
+					le32_to_cpup(&frame->len));
+			dev->net->stats.rx_errors++;
+		}
+
+		return 0;
+	}
+
+	count = le32_to_cpup(&frame->pkt_cnt);
+
+	skb_pull(buf, sizeof(*frame));
+
+	while (count--) {
+		if (buf->len < sizeof(*packet)) {
+			netif_err(dev, ifup, dev->net, "Packet too short\n");
+			goto error;
+		}
+
+		packet = (struct vl600_pkt_hdr *) buf->data;
+		packet_len = sizeof(*packet) + le32_to_cpup(&packet->len);
+		if (packet_len > buf->len) {
+			netif_err(dev, ifup, dev->net,
+					"Bad packet length stored in header\n");
+			goto error;
+		}
+
+		/* Packet header is same size as the ethernet header
+		 * (sizeof(*packet) == sizeof(*ethhdr)), additionally
+		 * the h_proto field is in the same place so we just leave it
+		 * alone and fill in the remaining fields.
+		 */
+		ethhdr = (struct ethhdr *) skb->data;
+		if (be16_to_cpup(&ethhdr->h_proto) == ETH_P_ARP &&
+				buf->len > 0x26) {
+			/* Copy the addresses from packet contents */
+			memcpy(ethhdr->h_source,
+					&buf->data[sizeof(*ethhdr) + 0x8],
+					ETH_ALEN);
+			memcpy(ethhdr->h_dest,
+					&buf->data[sizeof(*ethhdr) + 0x12],
+					ETH_ALEN);
+		} else {
+			memset(ethhdr->h_source, 0, ETH_ALEN);
+			memcpy(ethhdr->h_dest, dev->net->dev_addr, ETH_ALEN);
+		}
+
+		if (count) {
+			/* Not the last packet in this batch */
+			clone = skb_clone(buf, GFP_ATOMIC);
+			if (!clone)
+				goto error;
+
+			skb_trim(clone, packet_len);
+			usbnet_skb_return(dev, clone);
+
+			skb_pull(buf, (packet_len + 3) & ~3);
+		} else {
+			skb_trim(buf, packet_len);
+
+			if (s->current_rx_buf) {
+				usbnet_skb_return(dev, buf);
+				s->current_rx_buf = NULL;
+				return 0;
+			}
+
+			return 1;
+		}
+	}
+
+error:
+	if (s->current_rx_buf) {
+		dev_kfree_skb_any(s->current_rx_buf);
+		s->current_rx_buf = NULL;
+	}
+	dev->net->stats.rx_errors++;
+	return 0;
+}
+
+static struct sk_buff *vl600_tx_fixup(struct usbnet *dev,
+		struct sk_buff *skb, gfp_t flags)
+{
+	struct sk_buff *ret;
+	struct vl600_frame_hdr *frame;
+	struct vl600_pkt_hdr *packet;
+	static uint32_t serial = 1;
+	int orig_len = skb->len - sizeof(struct ethhdr);
+	int full_len = (skb->len + sizeof(struct vl600_frame_hdr) + 3) & ~3;
+
+	frame = (struct vl600_frame_hdr *) skb->data;
+	if (skb->len > sizeof(*frame) && skb->len == le32_to_cpup(&frame->len))
+		return skb; /* Already encapsulated? */
+
+	if (skb->len < sizeof(struct ethhdr))
+		/* Drop, device can only deal with ethernet packets */
+		return NULL;
+
+	if (!skb_cloned(skb)) {
+		int headroom = skb_headroom(skb);
+		int tailroom = skb_tailroom(skb);
+
+		if (tailroom >= full_len - skb->len - sizeof(*frame) &&
+				headroom >= sizeof(*frame))
+			/* There's enough head and tail room */
+			goto encapsulate;
+
+		if (headroom + tailroom + skb->len >= full_len) {
+			/* There's enough total room, just readjust */
+			skb->data = memmove(skb->head + sizeof(*frame),
+					skb->data, skb->len);
+			skb_set_tail_pointer(skb, skb->len);
+			goto encapsulate;
+		}
+	}
+
+	/* Alloc a new skb with the required size */
+	ret = skb_copy_expand(skb, sizeof(struct vl600_frame_hdr), full_len -
+			skb->len - sizeof(struct vl600_frame_hdr), flags);
+	dev_kfree_skb_any(skb);
+	if (!ret)
+		return ret;
+	skb = ret;
+
+encapsulate:
+	/* Packet header is same size as ethernet packet header
+	 * (sizeof(*packet) == sizeof(struct ethhdr)), additionally the
+	 * h_proto field is in the same place so we just leave it alone and
+	 * overwrite the remaining fields.
+	 */
+	packet = (struct vl600_pkt_hdr *) skb->data;
+	memset(&packet->dummy, 0, sizeof(packet->dummy));
+	packet->len = cpu_to_le32(orig_len);
+
+	frame = (struct vl600_frame_hdr *) skb_push(skb, sizeof(*frame));
+	memset(frame, 0, sizeof(*frame));
+	frame->len = cpu_to_le32(full_len);
+	frame->serial = cpu_to_le32(serial++);
+	frame->pkt_cnt = cpu_to_le32(1);
+
+	if (skb->len < full_len) /* Pad */
+		skb_put(skb, full_len - skb->len);
+
+	return skb;
+}
+
+static const struct driver_info	vl600_info = {
+	.description	= "LG VL600 modem",
+	.flags		= FLAG_ETHER | FLAG_RX_ASSEMBLE,
+	.bind		= vl600_bind,
+	.unbind		= vl600_unbind,
+	.status		= usbnet_cdc_status,
+	.rx_fixup	= vl600_rx_fixup,
+	.tx_fixup	= vl600_tx_fixup,
+};
+
+static const struct usb_device_id products[] = {
+	{
+		USB_DEVICE_AND_INTERFACE_INFO(0x1004, 0x61aa, USB_CLASS_COMM,
+				USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
+		.driver_info	= (unsigned long) &vl600_info,
+	},
+	{},	/* End */
+};
+MODULE_DEVICE_TABLE(usb, products);
+
+static struct usb_driver lg_vl600_driver = {
+	.name		= "lg-vl600",
+	.id_table	= products,
+	.probe		= usbnet_probe,
+	.disconnect	= usbnet_disconnect,
+	.suspend	= usbnet_suspend,
+	.resume		= usbnet_resume,
+};
+
+static int __init vl600_init(void)
+{
+	return usb_register(&lg_vl600_driver);
+}
+module_init(vl600_init);
+
+static void __exit vl600_exit(void)
+{
+	usb_deregister(&lg_vl600_driver);
+}
+module_exit(vl600_exit);
+
+MODULE_AUTHOR("Anrzej Zaborowski");
+MODULE_DESCRIPTION("LG-VL600 modem's ethernet link");
+MODULE_LICENSE("GPL");
diff --git a/drivers/net/usb/net1080.c b/drivers/net/usb/net1080.c
index ba72a7281cb0..01db4602a39e 100644
--- a/drivers/net/usb/net1080.c
+++ b/drivers/net/usb/net1080.c
@@ -560,7 +560,7 @@ static int net1080_bind(struct usbnet *dev, struct usb_interface *intf)
 
 static const struct driver_info	net1080_info = {
 	.description =	"NetChip TurboCONNECT",
-	.flags =	FLAG_FRAMING_NC,
+	.flags =	FLAG_POINTTOPOINT | FLAG_FRAMING_NC,
 	.bind =		net1080_bind,
 	.reset =	net1080_reset,
 	.check_connect = net1080_check_connect,
diff --git a/drivers/net/usb/plusb.c b/drivers/net/usb/plusb.c
index 08ad269f6b4e..823c53751307 100644
--- a/drivers/net/usb/plusb.c
+++ b/drivers/net/usb/plusb.c
@@ -96,7 +96,7 @@ static int pl_reset(struct usbnet *dev)
 
 static const struct driver_info	prolific_info = {
 	.description =	"Prolific PL-2301/PL-2302",
-	.flags =	FLAG_NO_SETINT,
+	.flags =	FLAG_POINTTOPOINT | FLAG_NO_SETINT,
 		/* some PL-2302 versions seem to fail usb_set_interface() */
 	.reset =	pl_reset,
 };
diff --git a/drivers/net/usb/rndis_host.c b/drivers/net/usb/rndis_host.c
index dd8a4adf48ca..5994a25c56ac 100644
--- a/drivers/net/usb/rndis_host.c
+++ b/drivers/net/usb/rndis_host.c
@@ -573,7 +573,7 @@ EXPORT_SYMBOL_GPL(rndis_tx_fixup);
 
 static const struct driver_info	rndis_info = {
 	.description =	"RNDIS device",
-	.flags =	FLAG_ETHER | FLAG_FRAMING_RN | FLAG_NO_SETINT,
+	.flags =	FLAG_ETHER | FLAG_POINTTOPOINT | FLAG_FRAMING_RN | FLAG_NO_SETINT,
 	.bind =		rndis_bind,
 	.unbind =	rndis_unbind,
 	.status =	rndis_status,
diff --git a/drivers/net/usb/smsc95xx.c b/drivers/net/usb/smsc95xx.c
index bc86f4b6ecc2..727874d9deb6 100644
--- a/drivers/net/usb/smsc95xx.c
+++ b/drivers/net/usb/smsc95xx.c
@@ -49,6 +49,8 @@
 
 struct smsc95xx_priv {
 	u32 mac_cr;
+	u32 hash_hi;
+	u32 hash_lo;
 	spinlock_t mac_cr_lock;
 	bool use_tx_csum;
 	bool use_rx_csum;
@@ -370,10 +372,11 @@ static void smsc95xx_set_multicast(struct net_device *netdev)
 {
 	struct usbnet *dev = netdev_priv(netdev);
 	struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
-	u32 hash_hi = 0;
-	u32 hash_lo = 0;
 	unsigned long flags;
 
+	pdata->hash_hi = 0;
+	pdata->hash_lo = 0;
+
 	spin_lock_irqsave(&pdata->mac_cr_lock, flags);
 
 	if (dev->net->flags & IFF_PROMISC) {
@@ -394,13 +397,13 @@ static void smsc95xx_set_multicast(struct net_device *netdev)
 			u32 bitnum = smsc95xx_hash(ha->addr);
 			u32 mask = 0x01 << (bitnum & 0x1F);
 			if (bitnum & 0x20)
-				hash_hi |= mask;
+				pdata->hash_hi |= mask;
 			else
-				hash_lo |= mask;
+				pdata->hash_lo |= mask;
 		}
 
 		netif_dbg(dev, drv, dev->net, "HASHH=0x%08X, HASHL=0x%08X\n",
-				   hash_hi, hash_lo);
+				   pdata->hash_hi, pdata->hash_lo);
 	} else {
 		netif_dbg(dev, drv, dev->net, "receive own packets only\n");
 		pdata->mac_cr &=
@@ -410,8 +413,8 @@ static void smsc95xx_set_multicast(struct net_device *netdev)
 	spin_unlock_irqrestore(&pdata->mac_cr_lock, flags);
 
 	/* Initiate async writes, as we can't wait for completion here */
-	smsc95xx_write_reg_async(dev, HASHH, &hash_hi);
-	smsc95xx_write_reg_async(dev, HASHL, &hash_lo);
+	smsc95xx_write_reg_async(dev, HASHH, &pdata->hash_hi);
+	smsc95xx_write_reg_async(dev, HASHL, &pdata->hash_lo);
 	smsc95xx_write_reg_async(dev, MAC_CR, &pdata->mac_cr);
 }
 
diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c
index 95c41d56631c..069c1cf0fdf7 100644
--- a/drivers/net/usb/usbnet.c
+++ b/drivers/net/usb/usbnet.c
@@ -387,8 +387,12 @@ static int rx_submit (struct usbnet *dev, struct urb *urb, gfp_t flags)
 static inline void rx_process (struct usbnet *dev, struct sk_buff *skb)
 {
 	if (dev->driver_info->rx_fixup &&
-	    !dev->driver_info->rx_fixup (dev, skb))
-		goto error;
+	    !dev->driver_info->rx_fixup (dev, skb)) {
+		/* With RX_ASSEMBLE, rx_fixup() must update counters */
+		if (!(dev->driver_info->flags & FLAG_RX_ASSEMBLE))
+			dev->net->stats.rx_errors++;
+		goto done;
+	}
 	// else network stack removes extra byte if we forced a short packet
 
 	if (skb->len) {
@@ -401,8 +405,8 @@ static inline void rx_process (struct usbnet *dev, struct sk_buff *skb)
 	}
 
 	netif_dbg(dev, rx_err, dev->net, "drop\n");
-error:
 	dev->net->stats.rx_errors++;
+done:
 	skb_queue_tail(&dev->done, skb);
 }
 
@@ -1376,7 +1380,8 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod)
 		// else "eth%d" when there's reasonable doubt.  userspace
 		// can rename the link if it knows better.
 		if ((dev->driver_info->flags & FLAG_ETHER) != 0 &&
-		    (net->dev_addr [0] & 0x02) == 0)
+		    ((dev->driver_info->flags & FLAG_POINTTOPOINT) == 0 ||
+		     (net->dev_addr [0] & 0x02) == 0))
 			strcpy (net->name, "eth%d");
 		/* WLAN devices should always be named "wlan%d" */
 		if ((dev->driver_info->flags & FLAG_WLAN) != 0)
diff --git a/drivers/net/usb/zaurus.c b/drivers/net/usb/zaurus.c
index 3eb0b167b5b4..241756e0e86f 100644
--- a/drivers/net/usb/zaurus.c
+++ b/drivers/net/usb/zaurus.c
@@ -102,7 +102,7 @@ static int always_connected (struct usbnet *dev)
 
 static const struct driver_info	zaurus_sl5x00_info = {
 	.description =	"Sharp Zaurus SL-5x00",
-	.flags =	FLAG_FRAMING_Z,
+	.flags =	FLAG_POINTTOPOINT | FLAG_FRAMING_Z,
 	.check_connect = always_connected,
 	.bind =		zaurus_bind,
 	.unbind =	usbnet_cdc_unbind,
@@ -112,7 +112,7 @@ static const struct driver_info	zaurus_sl5x00_info = {
 
 static const struct driver_info	zaurus_pxa_info = {
 	.description =	"Sharp Zaurus, PXA-2xx based",
-	.flags =	FLAG_FRAMING_Z,
+	.flags =	FLAG_POINTTOPOINT | FLAG_FRAMING_Z,
 	.check_connect = always_connected,
 	.bind =		zaurus_bind,
 	.unbind =	usbnet_cdc_unbind,
@@ -122,7 +122,7 @@ static const struct driver_info	zaurus_pxa_info = {
 
 static const struct driver_info	olympus_mxl_info = {
 	.description =	"Olympus R1000",
-	.flags =	FLAG_FRAMING_Z,
+	.flags =	FLAG_POINTTOPOINT | FLAG_FRAMING_Z,
 	.check_connect = always_connected,
 	.bind =		zaurus_bind,
 	.unbind =	usbnet_cdc_unbind,
@@ -258,7 +258,7 @@ bad_desc:
 
 static const struct driver_info	bogus_mdlm_info = {
 	.description =	"pseudo-MDLM (BLAN) device",
-	.flags =	FLAG_FRAMING_Z,
+	.flags =	FLAG_POINTTOPOINT | FLAG_FRAMING_Z,
 	.check_connect = always_connected,
 	.tx_fixup =	zaurus_tx_fixup,
 	.bind =		blan_mdlm_bind,
diff --git a/drivers/net/via-rhine.c b/drivers/net/via-rhine.c
index 5e7f069eab53..eb5d75df5d5d 100644
--- a/drivers/net/via-rhine.c
+++ b/drivers/net/via-rhine.c
@@ -1861,7 +1861,7 @@ static void rhine_restart_tx(struct net_device *dev) {
 	u32 intr_status;
 
 	/*
-	 * If new errors occured, we need to sort them out before doing Tx.
+	 * If new errors occurred, we need to sort them out before doing Tx.
 	 * In that case the ISR will be back here RSN anyway.
 	 */
 	intr_status = get_intr_status(dev);
@@ -1887,7 +1887,7 @@ static void rhine_restart_tx(struct net_device *dev) {
 		/* This should never happen */
 		if (debug > 1)
 			printk(KERN_WARNING "%s: rhine_restart_tx() "
-			       "Another error occured %8.8x.\n",
+			       "Another error occurred %8.8x.\n",
 			       dev->name, intr_status);
 	}
 
diff --git a/drivers/net/via-velocity.c b/drivers/net/via-velocity.c
index 0d6fec6b7d93..4fe051753842 100644
--- a/drivers/net/via-velocity.c
+++ b/drivers/net/via-velocity.c
@@ -292,7 +292,7 @@ VELOCITY_PARAM(DMA_length, "DMA length");
 /* IP_byte_align[] is used for IP header DWORD byte aligned
    0: indicate the IP header won't be DWORD byte aligned.(Default) .
    1: indicate the IP header will be DWORD byte aligned.
-      In some enviroment, the IP header should be DWORD byte aligned,
+      In some environment, the IP header should be DWORD byte aligned,
       or the packet will be droped when we receive it. (eg: IPVS)
 */
 VELOCITY_PARAM(IP_byte_align, "Enable IP header dword aligned");
@@ -1994,7 +1994,7 @@ static inline void velocity_rx_csum(struct rx_desc *rd, struct sk_buff *skb)
  *	@dev: network device
  *
  *	Replace the current skb that is scheduled for Rx processing by a
- *	shorter, immediatly allocated skb, if the received packet is small
+ *	shorter, immediately allocated skb, if the received packet is small
  *	enough. This function returns a negative value if the received
  *	packet is too big or if memory is exhausted.
  */
diff --git a/drivers/net/vmxnet3/vmxnet3_drv.c b/drivers/net/vmxnet3/vmxnet3_drv.c
index cc14b4a75048..0d47c3a05307 100644
--- a/drivers/net/vmxnet3/vmxnet3_drv.c
+++ b/drivers/net/vmxnet3/vmxnet3_drv.c
@@ -892,7 +892,7 @@ vmxnet3_prepare_tso(struct sk_buff *skb,
  * Transmits a pkt thru a given tq
  * Returns:
  *    NETDEV_TX_OK:      descriptors are setup successfully
- *    NETDEV_TX_OK:      error occured, the pkt is dropped
+ *    NETDEV_TX_OK:      error occurred, the pkt is dropped
  *    NETDEV_TX_BUSY:    tx ring is full, queue is stopped
  *
  * Side-effects:
@@ -2685,7 +2685,7 @@ vmxnet3_read_mac_addr(struct vmxnet3_adapter *adapter, u8 *mac)
  * Enable MSIx vectors.
  * Returns :
  *	0 on successful enabling of required vectors,
- *	VMXNET3_LINUX_MIN_MSIX_VECT when only minumum number of vectors required
+ *	VMXNET3_LINUX_MIN_MSIX_VECT when only minimum number of vectors required
  *	 could be enabled.
  *	number of vectors which can be enabled otherwise (this number is smaller
  *	 than VMXNET3_LINUX_MIN_MSIX_VECT)
diff --git a/drivers/net/vmxnet3/vmxnet3_ethtool.c b/drivers/net/vmxnet3/vmxnet3_ethtool.c
index 81254be85b92..51f2ef142a5b 100644
--- a/drivers/net/vmxnet3/vmxnet3_ethtool.c
+++ b/drivers/net/vmxnet3/vmxnet3_ethtool.c
@@ -304,8 +304,8 @@ vmxnet3_set_flags(struct net_device *netdev, u32 data)
 	u8 lro_present = (netdev->features & NETIF_F_LRO) == 0 ? 0 : 1;
 	unsigned long flags;
 
-	if (data & ~ETH_FLAG_LRO)
-		return -EOPNOTSUPP;
+	if (ethtool_invalid_flags(netdev, data, ETH_FLAG_LRO))
+		return -EINVAL;
 
 	if (lro_requested ^ lro_present) {
 		/* toggle the LRO feature*/
diff --git a/drivers/net/vxge/vxge-config.c b/drivers/net/vxge/vxge-config.c
index e74e4b42592d..401bebf59502 100644
--- a/drivers/net/vxge/vxge-config.c
+++ b/drivers/net/vxge/vxge-config.c
@@ -187,7 +187,7 @@ vxge_hw_vpath_fw_api(struct __vxge_hw_virtualpath *vpath, u32 action,
 					   VXGE_HW_DEF_DEVICE_POLL_MILLIS);
 
 	/* The __vxge_hw_device_register_poll can udelay for a significant
-	 * amount of time, blocking other proccess from the CPU.  If it delays
+	 * amount of time, blocking other process from the CPU.  If it delays
 	 * for ~5secs, a NMI error can occur.  A way around this is to give up
 	 * the processor via msleep, but this is not allowed is under lock.
 	 * So, only allow it to sleep for ~4secs if open.  Otherwise, delay for
diff --git a/drivers/net/vxge/vxge-ethtool.c b/drivers/net/vxge/vxge-ethtool.c
index 1dd3a21b3a43..c5eb034107fd 100644
--- a/drivers/net/vxge/vxge-ethtool.c
+++ b/drivers/net/vxge/vxge-ethtool.c
@@ -1117,8 +1117,8 @@ static int vxge_set_flags(struct net_device *dev, u32 data)
 	struct vxgedev *vdev = netdev_priv(dev);
 	enum vxge_hw_status status;
 
-	if (data & ~ETH_FLAG_RXHASH)
-		return -EOPNOTSUPP;
+	if (ethtool_invalid_flags(dev, data, ETH_FLAG_RXHASH))
+		return -EINVAL;
 
 	if (!!(data & ETH_FLAG_RXHASH) == vdev->devh->config.rth_en)
 		return 0;
diff --git a/drivers/net/vxge/vxge-main.c b/drivers/net/vxge/vxge-main.c
index 395423aeec00..aff68c1118d4 100644
--- a/drivers/net/vxge/vxge-main.c
+++ b/drivers/net/vxge/vxge-main.c
@@ -2282,7 +2282,7 @@ vxge_alarm_msix_handle(int irq, void *dev_id)
 		VXGE_HW_VPATH_MSIX_ACTIVE) + VXGE_ALARM_MSIX_ID;
 
 	for (i = 0; i < vdev->no_of_vpath; i++) {
-		/* Reduce the chance of loosing alarm interrupts by masking
+		/* Reduce the chance of losing alarm interrupts by masking
 		 * the vector. A pending bit will be set if an alarm is
 		 * generated and on unmask the interrupt will be fired.
 		 */
@@ -2788,7 +2788,7 @@ static int vxge_open(struct net_device *dev)
 	}
 
 	/* Enable vpath to sniff all unicast/multicast traffic that not
-	 * addressed to them. We allow promiscous mode for PF only
+	 * addressed to them. We allow promiscuous mode for PF only
 	 */
 
 	val64 = 0;
@@ -2890,7 +2890,7 @@ out0:
 	return ret;
 }
 
-/* Loop throught the mac address list and delete all the entries */
+/* Loop through the mac address list and delete all the entries */
 static void vxge_free_mac_add_list(struct vxge_vpath *vpath)
 {
 
@@ -2957,7 +2957,7 @@ static int do_vxge_close(struct net_device *dev, int do_io)
 					val64);
 		}
 
-		/* Remove the function 0 from promiscous mode */
+		/* Remove the function 0 from promiscuous mode */
 		vxge_hw_mgmt_reg_write(vdev->devh,
 			vxge_hw_mgmt_reg_type_mrpcim,
 			0,
diff --git a/drivers/net/vxge/vxge-traffic.c b/drivers/net/vxge/vxge-traffic.c
index 8674f331311c..2638b8d97b8f 100644
--- a/drivers/net/vxge/vxge-traffic.c
+++ b/drivers/net/vxge/vxge-traffic.c
@@ -1111,7 +1111,7 @@ void vxge_hw_channel_dtr_free(struct __vxge_hw_channel *channel, void *dtrh)
  * vxge_hw_channel_dtr_count
  * @channel: Channel handle. Obtained via vxge_hw_channel_open().
  *
- * Retreive number of DTRs available. This function can not be called
+ * Retrieve number of DTRs available. This function can not be called
  * from data path. ring_initial_replenishi() is the only user.
  */
 int vxge_hw_channel_dtr_count(struct __vxge_hw_channel *channel)
@@ -2060,7 +2060,7 @@ enum vxge_hw_status vxge_hw_vpath_promisc_enable(
 
 	vpath = vp->vpath;
 
-	/* Enable promiscous mode for function 0 only */
+	/* Enable promiscuous mode for function 0 only */
 	if (!(vpath->hldev->access_rights &
 		VXGE_HW_DEVICE_ACCESS_RIGHT_MRPCIM))
 		return VXGE_HW_OK;
diff --git a/drivers/net/vxge/vxge-traffic.h b/drivers/net/vxge/vxge-traffic.h
index 9d9dfda4c7ab..6c2fc0b72af5 100644
--- a/drivers/net/vxge/vxge-traffic.h
+++ b/drivers/net/vxge/vxge-traffic.h
@@ -681,7 +681,7 @@ struct vxge_hw_xmac_aggr_stats {
  * @rx_red_discard: Count of received frames that are discarded because of RED
  *            (Random Early Discard).
  * @rx_xgmii_ctrl_err_cnt: Maintains a count of unexpected or misplaced control
- *            characters occuring between times of normal data transmission
+ *            characters occurring between times of normal data transmission
  *            (i.e. not included in RX_XGMII_DATA_ERR_CNT). This counter is
  *            incremented when either -
  *            1) The Reconciliation Sublayer (RS) is expecting one control
diff --git a/drivers/net/wan/cosa.c b/drivers/net/wan/cosa.c
index 10bafd59f9c3..6fb6f8e667d0 100644
--- a/drivers/net/wan/cosa.c
+++ b/drivers/net/wan/cosa.c
@@ -329,7 +329,7 @@ static int startmicrocode(struct cosa_data *cosa, int address);
 static int readmem(struct cosa_data *cosa, char __user *data, int addr, int len);
 static int cosa_reset_and_read_id(struct cosa_data *cosa, char *id);
 
-/* Auxilliary functions */
+/* Auxiliary functions */
 static int get_wait_data(struct cosa_data *cosa);
 static int put_wait_data(struct cosa_data *cosa, int data);
 static int puthexnumber(struct cosa_data *cosa, int number);
diff --git a/drivers/net/wan/dscc4.c b/drivers/net/wan/dscc4.c
index 4578e5b4b411..acb9ea830628 100644
--- a/drivers/net/wan/dscc4.c
+++ b/drivers/net/wan/dscc4.c
@@ -56,7 +56,7 @@
  * IV. Notes
  * The current error (XDU, RFO) recovery code is untested.
  * So far, RDO takes his RX channel down and the right sequence to enable it
- * again is still a mistery. If RDO happens, plan a reboot. More details
+ * again is still a mystery. If RDO happens, plan a reboot. More details
  * in the code (NB: as this happens, TX still works).
  * Don't mess the cables during operation, especially on DTE ports. I don't
  * suggest it for DCE either but at least one can get some messages instead
@@ -1065,7 +1065,7 @@ static int dscc4_open(struct net_device *dev)
 
 	/*
 	 * Due to various bugs, there is no way to reliably reset a
-	 * specific port (manufacturer's dependant special PCI #RST wiring
+	 * specific port (manufacturer's dependent special PCI #RST wiring
 	 * apart: it affects all ports). Thus the device goes in the best
 	 * silent mode possible at dscc4_close() time and simply claims to
 	 * be up if it's opened again. It still isn't possible to change
@@ -1230,9 +1230,9 @@ static inline int dscc4_check_clock_ability(int port)
  *   scaling. Of course some rounding may take place.
  * - no high speed mode (40Mb/s). May be trivial to do but I don't have an
  *   appropriate external clocking device for testing.
- * - no time-slot/clock mode 5: shameless lazyness.
+ * - no time-slot/clock mode 5: shameless laziness.
  *
- * The clock signals wiring can be (is ?) manufacturer dependant. Good luck.
+ * The clock signals wiring can be (is ?) manufacturer dependent. Good luck.
  *
  * BIG FAT WARNING: if the device isn't provided enough clocking signal, it
  * won't pass the init sequence. For example, straight back-to-back DTE without
diff --git a/drivers/net/wan/hostess_sv11.c b/drivers/net/wan/hostess_sv11.c
index 48edc5f4dac8..e817583e6ec5 100644
--- a/drivers/net/wan/hostess_sv11.c
+++ b/drivers/net/wan/hostess_sv11.c
@@ -15,7 +15,7 @@
  *	The hardware does the bus handling to avoid the need for delays between
  *	touching control registers.
  *
- *	Port B isnt wired (why - beats me)
+ *	Port B isn't wired (why - beats me)
  *
  *	Generic HDLC port Copyright (C) 2008 Krzysztof Halasa <khc@pm.waw.pl>
  */
diff --git a/drivers/net/wan/ixp4xx_hss.c b/drivers/net/wan/ixp4xx_hss.c
index 6c571e198835..f1e1643dc3eb 100644
--- a/drivers/net/wan/ixp4xx_hss.c
+++ b/drivers/net/wan/ixp4xx_hss.c
@@ -178,7 +178,7 @@
  *
  * The resulting average clock frequency (assuming 33.333 MHz oscillator) is:
  * freq = 66.666 MHz / (A + (B + 1) / (C + 1))
- * minumum freq = 66.666 MHz / (A + 1)
+ * minimum freq = 66.666 MHz / (A + 1)
  * maximum freq = 66.666 MHz / A
  *
  * Example: A = 2, B = 2, C = 7, CLOCK_CR register = 2 << 22 | 2 << 12 | 7
@@ -230,7 +230,7 @@
 #define PKT_PIPE_MODE_WRITE		0x57
 
 /* HDLC packet status values - desc->status */
-#define ERR_SHUTDOWN		1 /* stop or shutdown occurrance */
+#define ERR_SHUTDOWN		1 /* stop or shutdown occurrence */
 #define ERR_HDLC_ALIGN		2 /* HDLC alignment error */
 #define ERR_HDLC_FCS		3 /* HDLC Frame Check Sum error */
 #define ERR_RXFREE_Q_EMPTY	4 /* RX-free queue became empty while receiving
diff --git a/drivers/net/wan/lmc/lmc_main.c b/drivers/net/wan/lmc/lmc_main.c
index 70feb84df670..b7f2358d23be 100644
--- a/drivers/net/wan/lmc/lmc_main.c
+++ b/drivers/net/wan/lmc/lmc_main.c
@@ -24,7 +24,7 @@
   *
   * Linux driver notes:
   * Linux uses the device struct lmc_private to pass private information
-  * arround.
+  * around.
   *
   * The initialization portion of this driver (the lmc_reset() and the
   * lmc_dec_reset() functions, as well as the led controls and the
diff --git a/drivers/net/wan/lmc/lmc_var.h b/drivers/net/wan/lmc/lmc_var.h
index 65d01978e784..01ad45218d19 100644
--- a/drivers/net/wan/lmc/lmc_var.h
+++ b/drivers/net/wan/lmc/lmc_var.h
@@ -180,7 +180,7 @@ struct lmc___ctl {
 
 
 /*
- * Carefull, look at the data sheet, there's more to this
+ * Careful, look at the data sheet, there's more to this
  * structure than meets the eye.  It should probably be:
  *
  * struct tulip_desc_t {
@@ -380,7 +380,7 @@ struct lmc___softc {
 /* CSR6 settings */
 #define OPERATION_MODE  0x00000200 /* Full Duplex      */
 #define PROMISC_MODE    0x00000040 /* Promiscuous Mode */
-#define RECIEVE_ALL     0x40000000 /* Recieve All      */
+#define RECIEVE_ALL     0x40000000 /* Receive All      */
 #define PASS_BAD_FRAMES 0x00000008 /* Pass Bad Frames  */
 
 /* Dec control registers  CSR6 as well */
@@ -398,7 +398,7 @@ struct lmc___softc {
 #define TULIP_CMD_RECEIVEALL    0x40000000L /* (RW)  Receivel all frames? */
 #define TULIP_CMD_MUSTBEONE     0x02000000L /* (RW)  Must Be One (21140) */
 #define TULIP_CMD_TXTHRSHLDCTL  0x00400000L /* (RW)  Transmit Threshold Mode (21140) */
-#define TULIP_CMD_STOREFWD      0x00200000L /* (RW)  Store and Foward (21140) */
+#define TULIP_CMD_STOREFWD      0x00200000L /* (RW)  Store and Forward (21140) */
 #define TULIP_CMD_NOHEARTBEAT   0x00080000L /* (RW)  No Heartbeat (21140) */
 #define TULIP_CMD_PORTSELECT    0x00040000L /* (RW)  Post Select (100Mb) (21140) */
 #define TULIP_CMD_FULLDUPLEX    0x00000200L /* (RW)  Full Duplex Mode */
diff --git a/drivers/net/wan/z85230.c b/drivers/net/wan/z85230.c
index 93956861ea21..0806232e0f8f 100644
--- a/drivers/net/wan/z85230.c
+++ b/drivers/net/wan/z85230.c
@@ -542,7 +542,7 @@ static void z8530_dma_tx(struct z8530_channel *chan)
 		z8530_tx(chan);
 		return;
 	}
-	/* This shouldnt occur in DMA mode */
+	/* This shouldn't occur in DMA mode */
 	printk(KERN_ERR "DMA tx - bogus event!\n");
 	z8530_tx(chan);
 }
@@ -1219,7 +1219,7 @@ static const char *z8530_type_name[]={
  *	@io: the port value in question
  *
  *	Describe a Z8530 in a standard format. We must pass the I/O as
- *	the port offset isnt predictable. The main reason for this function
+ *	the port offset isn't predictable. The main reason for this function
  *	is to try and get a common format of report.
  */
 
@@ -1588,7 +1588,7 @@ static void z8530_rx_done(struct z8530_channel *c)
 		unsigned long flags;
 		
 		/*
-		 *	Complete this DMA. Neccessary to find the length
+		 *	Complete this DMA. Necessary to find the length
 		 */		
 		 
 		flags=claim_dma_lock();
@@ -1657,7 +1657,7 @@ static void z8530_rx_done(struct z8530_channel *c)
 		 *	fifo length for this. Thus we want to flip to the new
 		 *	buffer and then mess around copying and allocating
 		 *	things. For the current case it doesn't matter but
-		 *	if you build a system where the sync irq isnt blocked
+		 *	if you build a system where the sync irq isn't blocked
 		 *	by the kernel IRQ disable then you need only block the
 		 *	sync IRQ for the RT_LOCK area.
 		 *
diff --git a/drivers/net/wimax/i2400m/control.c b/drivers/net/wimax/i2400m/control.c
index 12b84ed0e38a..727d728649b7 100644
--- a/drivers/net/wimax/i2400m/control.c
+++ b/drivers/net/wimax/i2400m/control.c
@@ -378,7 +378,7 @@ void i2400m_report_tlv_system_state(struct i2400m *i2400m,
  * the device's state as sometimes we need to do a link-renew (the BS
  * wants us to renew a DHCP lease, for example).
  *
- * In fact, doc says that everytime we get a link-up, we should do a
+ * In fact, doc says that every time we get a link-up, we should do a
  * DHCP negotiation...
  */
 static
@@ -675,7 +675,7 @@ void i2400m_msg_to_dev_cancel_wait(struct i2400m *i2400m, int code)
  *  - the ack message wasn't formatted correctly
  *
  * The returned skb has been allocated with wimax_msg_to_user_alloc(),
- * it contains the reponse in a netlink attribute and is ready to be
+ * it contains the response in a netlink attribute and is ready to be
  * passed up to user space with wimax_msg_to_user_send(). To access
  * the payload and its length, use wimax_msg_{data,len}() on the skb.
  *
diff --git a/drivers/net/wimax/i2400m/driver.c b/drivers/net/wimax/i2400m/driver.c
index 65bc334ed57b..47cae7150bc1 100644
--- a/drivers/net/wimax/i2400m/driver.c
+++ b/drivers/net/wimax/i2400m/driver.c
@@ -654,7 +654,7 @@ void __i2400m_dev_reset_handle(struct work_struct *ws)
 	if (result == -EUCLEAN) {
 		/*
 		 * We come here because the reset during operational mode
-		 * wasn't successully done and need to proceed to a bus
+		 * wasn't successfully done and need to proceed to a bus
 		 * reset. For the dev_reset_handle() to be able to handle
 		 * the reset event later properly, we restore boot_mode back
 		 * to the state before previous reset. ie: just like we are
@@ -755,7 +755,7 @@ EXPORT_SYMBOL_GPL(i2400m_error_recovery);
  * Alloc the command and ack buffers for boot mode
  *
  * Get the buffers needed to deal with boot mode messages.  These
- * buffers need to be allocated before the sdio recieve irq is setup.
+ * buffers need to be allocated before the sdio receive irq is setup.
  */
 static
 int i2400m_bm_buf_alloc(struct i2400m *i2400m)
diff --git a/drivers/net/wimax/i2400m/fw.c b/drivers/net/wimax/i2400m/fw.c
index 8b55a5b14152..85dadd5bf4be 100644
--- a/drivers/net/wimax/i2400m/fw.c
+++ b/drivers/net/wimax/i2400m/fw.c
@@ -54,7 +54,7 @@
  * endpoint and read from it in the notification endpoint. In SDIO we
  * talk to it via the write address and read from the read address.
  *
- * Upon entrance to boot mode, the device sends (preceeded with a few
+ * Upon entrance to boot mode, the device sends (preceded with a few
  * zero length packets (ZLPs) on the notification endpoint in USB) a
  * reboot barker (4 le32 words with the same value). We ack it by
  * sending the same barker to the device. The device acks with a
@@ -1589,7 +1589,7 @@ int i2400m_dev_bootstrap(struct i2400m *i2400m, enum i2400m_bri flags)
 		i2400m->fw_name = fw_name;
 		ret = i2400m_fw_bootstrap(i2400m, fw, flags);
 		release_firmware(fw);
-		if (ret >= 0)	/* firmware loaded succesfully */
+		if (ret >= 0)	/* firmware loaded successfully */
 			break;
 		i2400m->fw_name = NULL;
 	}
diff --git a/drivers/net/wimax/i2400m/i2400m-usb.h b/drivers/net/wimax/i2400m/i2400m-usb.h
index eb80243e22df..6650fde99e1d 100644
--- a/drivers/net/wimax/i2400m/i2400m-usb.h
+++ b/drivers/net/wimax/i2400m/i2400m-usb.h
@@ -105,14 +105,14 @@ static inline void edc_init(struct edc *edc)
  *
  * @edc: pointer to error density counter.
  * @max_err: maximum number of errors we can accept over the timeframe
- * @timeframe: lenght of the timeframe (in jiffies).
+ * @timeframe: length of the timeframe (in jiffies).
  *
  * Returns: !0 1 if maximum acceptable errors per timeframe has been
  *     exceeded. 0 otherwise.
  *
  * This is way to determine if the number of acceptable errors per time
  * period has been exceeded. It is not accurate as there are cases in which
- * this scheme will not work, for example if there are periodic occurences
+ * this scheme will not work, for example if there are periodic occurrences
  * of errors that straddle updates to the start time. This scheme is
  * sufficient for our usage.
  *
@@ -204,7 +204,7 @@ enum {
  *     usb_autopm_get/put_interface() barriers when executing
  *     commands. See doc in i2400mu_suspend() for more information.
  *
- * @rx_size_auto_shrink: if true, the rx_size is shrinked
+ * @rx_size_auto_shrink: if true, the rx_size is shrunk
  *     automatically based on the average size of the received
  *     transactions. This allows the receive code to allocate smaller
  *     chunks of memory and thus reduce pressure on the memory
diff --git a/drivers/net/wimax/i2400m/i2400m.h b/drivers/net/wimax/i2400m/i2400m.h
index 030cbfd31704..5eacc653a94d 100644
--- a/drivers/net/wimax/i2400m/i2400m.h
+++ b/drivers/net/wimax/i2400m/i2400m.h
@@ -526,7 +526,7 @@ struct i2400m_barker_db;
  *
  * @barker: barker type that the device uses; this is initialized by
  *     i2400m_is_boot_barker() the first time it is called. Then it
- *     won't change during the life cycle of the device and everytime
+ *     won't change during the life cycle of the device and every time
  *     a boot barker is received, it is just verified for it being the
  *     same.
  *
@@ -928,7 +928,7 @@ extern void i2400m_report_tlv_rf_switches_status(
 	struct i2400m *, const struct i2400m_tlv_rf_switches_status *);
 
 /*
- * Helpers for firmware backwards compability
+ * Helpers for firmware backwards compatibility
  *
  * As we aim to support at least the firmware version that was
  * released with the previous kernel/driver release, some code will be
diff --git a/drivers/net/wimax/i2400m/netdev.c b/drivers/net/wimax/i2400m/netdev.c
index 94742e1eafe0..2edd8fe1c1f3 100644
--- a/drivers/net/wimax/i2400m/netdev.c
+++ b/drivers/net/wimax/i2400m/netdev.c
@@ -166,7 +166,7 @@ void i2400m_wake_tx_work(struct work_struct *ws)
 	d_fnstart(3, dev, "(ws %p i2400m %p skb %p)\n", ws, i2400m, skb);
 	result = -EINVAL;
 	if (skb == NULL) {
-		dev_err(dev, "WAKE&TX: skb dissapeared!\n");
+		dev_err(dev, "WAKE&TX: skb disappeared!\n");
 		goto out_put;
 	}
 	/* If we have, somehow, lost the connection after this was
diff --git a/drivers/net/wimax/i2400m/op-rfkill.c b/drivers/net/wimax/i2400m/op-rfkill.c
index 9e02b90b0080..b0dba35a8ad2 100644
--- a/drivers/net/wimax/i2400m/op-rfkill.c
+++ b/drivers/net/wimax/i2400m/op-rfkill.c
@@ -27,7 +27,7 @@
  * - report changes in the HW RF Kill switch [with
  *   wimax_rfkill_{sw,hw}_report(), which happens when we detect those
  *   indications coming through hardware reports]. We also do it on
- *   initialization to let the stack know the intial HW state.
+ *   initialization to let the stack know the initial HW state.
  *
  * - implement indications from the stack to change the SW RF Kill
  *   switch (coming from sysfs, the wimax stack or user space).
@@ -73,7 +73,7 @@ int i2400m_radio_is(struct i2400m *i2400m, enum wimax_rf_state state)
  * Generic Netlink will call this function when a message is sent from
  * userspace to change the software RF-Kill switch status.
  *
- * This function will set the device's sofware RF-Kill switch state to
+ * This function will set the device's software RF-Kill switch state to
  * match what is requested.
  *
  * NOTE: the i2400m has a strict state machine; we can only set the
diff --git a/drivers/net/wimax/i2400m/rx.c b/drivers/net/wimax/i2400m/rx.c
index 844133b44af0..2f94a872101f 100644
--- a/drivers/net/wimax/i2400m/rx.c
+++ b/drivers/net/wimax/i2400m/rx.c
@@ -349,7 +349,7 @@ error_no_waiter:
  *
  * For reports: We can't clone the original skb where the data is
  * because we need to send this up via netlink; netlink has to add
- * headers and we can't overwrite what's preceeding the payload...as
+ * headers and we can't overwrite what's preceding the payload...as
  * it is another message. So we just dup them.
  */
 static
@@ -425,7 +425,7 @@ error_check:
  *
  * As in i2400m_rx_ctl(), we can't clone the original skb where the
  * data is because we need to send this up via netlink; netlink has to
- * add headers and we can't overwrite what's preceeding the
+ * add headers and we can't overwrite what's preceding the
  * payload...as it is another message. So we just dup them.
  */
 static
diff --git a/drivers/net/wimax/i2400m/tx.c b/drivers/net/wimax/i2400m/tx.c
index 3f819efc06b5..4b30ed11d785 100644
--- a/drivers/net/wimax/i2400m/tx.c
+++ b/drivers/net/wimax/i2400m/tx.c
@@ -149,7 +149,7 @@
  * (with a moved message header to make sure it is size-aligned to
  * 16), TAIL room that was unusable (and thus is marked with a message
  * header that says 'skip this') and at the head of the buffer, an
- * imcomplete message with a couple of payloads.
+ * incomplete message with a couple of payloads.
  *
  * N   ___________________________________________________
  *    |                                                   |
@@ -819,7 +819,7 @@ EXPORT_SYMBOL_GPL(i2400m_tx);
  * the FIF that is ready for transmission.
  *
  * It sets the state in @i2400m to indicate the bus-specific driver is
- * transfering that message (i2400m->tx_msg_size).
+ * transferring that message (i2400m->tx_msg_size).
  *
  * Once the transfer is completed, call i2400m_tx_msg_sent().
  *
diff --git a/drivers/net/wimax/i2400m/usb-fw.c b/drivers/net/wimax/i2400m/usb-fw.c
index b58ec56b86f8..1fda46c55eb3 100644
--- a/drivers/net/wimax/i2400m/usb-fw.c
+++ b/drivers/net/wimax/i2400m/usb-fw.c
@@ -169,7 +169,7 @@ retry:
  *
  * Command can be a raw command, which requires no preparation (and
  * which might not even be following the command format). Checks that
- * the right amount of data was transfered.
+ * the right amount of data was transferred.
  *
  * To satisfy USB requirements (no onstack, vmalloc or in data segment
  * buffers), we copy the command to i2400m->bm_cmd_buf and send it from
diff --git a/drivers/net/wimax/i2400m/usb-rx.c b/drivers/net/wimax/i2400m/usb-rx.c
index a26483a812a5..e3257681e360 100644
--- a/drivers/net/wimax/i2400m/usb-rx.c
+++ b/drivers/net/wimax/i2400m/usb-rx.c
@@ -58,7 +58,7 @@
  *    a zillion reads; by serializing, we are throttling.
  *
  *  - RX data processing can get heavy enough so that it is not
- *    appropiate for doing it in the USB callback; thus we run it in a
+ *    appropriate for doing it in the USB callback; thus we run it in a
  *    process context.
  *
  * We provide a read buffer of an arbitrary size (short of a page); if
diff --git a/drivers/net/wimax/i2400m/usb-tx.c b/drivers/net/wimax/i2400m/usb-tx.c
index c65b9979f87e..ac357acfb3e9 100644
--- a/drivers/net/wimax/i2400m/usb-tx.c
+++ b/drivers/net/wimax/i2400m/usb-tx.c
@@ -168,7 +168,7 @@ retry:
 /*
  * Get the next TX message in the TX FIFO and send it to the device
  *
- * Note we exit the loop if i2400mu_tx() fails; that funtion only
+ * Note we exit the loop if i2400mu_tx() fails; that function only
  * fails on hard error (failing to tx a buffer not being one of them,
  * see its doc).
  *
diff --git a/drivers/net/wireless/airo.c b/drivers/net/wireless/airo.c
index 57a79b0475f6..4e5c7a11f04a 100644
--- a/drivers/net/wireless/airo.c
+++ b/drivers/net/wireless/airo.c
@@ -1884,7 +1884,7 @@ static int airo_open(struct net_device *dev) {
 	/* Make sure the card is configured.
 	 * Wireless Extensions may postpone config changes until the card
 	 * is open (to pipeline changes and speed-up card setup). If
-	 * those changes are not yet commited, do it now - Jean II */
+	 * those changes are not yet committed, do it now - Jean II */
 	if (test_bit(FLAG_COMMIT, &ai->flags)) {
 		disable_MAC(ai, 1);
 		writeConfigRid(ai, 1);
@@ -1992,7 +1992,7 @@ static int mpi_send_packet (struct net_device *dev)
 /*
  * Magic, the cards firmware needs a length count (2 bytes) in the host buffer
  * right after  TXFID_HDR.The TXFID_HDR contains the status short so payloadlen
- * is immediatly after it. ------------------------------------------------
+ * is immediately after it. ------------------------------------------------
  *                         |TXFIDHDR+STATUS|PAYLOADLEN|802.3HDR|PACKETDATA|
  *                         ------------------------------------------------
  */
@@ -2006,7 +2006,7 @@ static int mpi_send_packet (struct net_device *dev)
 		sizeof(wifictlhdr8023) + 2 ;
 
 	/*
-	 * Firmware automaticly puts 802 header on so
+	 * Firmware automatically puts 802 header on so
 	 * we don't need to account for it in the length
 	 */
 	if (test_bit(FLAG_MIC_CAPABLE, &ai->flags) && ai->micstats.enabled &&
@@ -2531,7 +2531,7 @@ static int mpi_init_descriptors (struct airo_info *ai)
 /*
  * We are setting up three things here:
  * 1) Map AUX memory for descriptors: Rid, TxFid, or RxFid.
- * 2) Map PCI memory for issueing commands.
+ * 2) Map PCI memory for issuing commands.
  * 3) Allocate memory (shared) to send and receive ethernet frames.
  */
 static int mpi_map_card(struct airo_info *ai, struct pci_dev *pci)
@@ -3947,7 +3947,7 @@ static u16 issuecommand(struct airo_info *ai, Cmd *pCmd, Resp *pRsp) {
 
 	if ( max_tries == -1 ) {
 		airo_print_err(ai->dev->name,
-			"Max tries exceeded when issueing command");
+			"Max tries exceeded when issuing command");
 		if (IN4500(ai, COMMAND) & COMMAND_BUSY)
 			OUT4500(ai, EVACK, EV_CLEARCOMMANDBUSY);
 		return ERROR;
@@ -4173,7 +4173,7 @@ done:
 }
 
 /*  Note, that we are using BAP1 which is also used by transmit, so
- *  make sure this isnt called when a transmit is happening */
+ *  make sure this isn't called when a transmit is happening */
 static int PC4500_writerid(struct airo_info *ai, u16 rid,
 			   const void *pBuf, int len, int lock)
 {
@@ -4776,7 +4776,7 @@ static int proc_stats_rid_open( struct inode *inode,
 		if (!statsLabels[i]) continue;
 		if (j+strlen(statsLabels[i])+16>4096) {
 			airo_print_warn(apriv->dev->name,
-			       "Potentially disasterous buffer overflow averted!");
+			       "Potentially disastrous buffer overflow averted!");
 			break;
 		}
 		j+=sprintf(data->rbuffer+j, "%s: %u\n", statsLabels[i],
diff --git a/drivers/net/wireless/ath/ar9170/main.c b/drivers/net/wireless/ath/ar9170/main.c
index b761fec0d721..ccc2edaaeda0 100644
--- a/drivers/net/wireless/ath/ar9170/main.c
+++ b/drivers/net/wireless/ath/ar9170/main.c
@@ -974,7 +974,7 @@ void ar9170_rx(struct ar9170 *ar, struct sk_buff *skb)
 			if (ar->rx_failover_missing <= 0) {
 				/*
 				 * nested ar9170_rx call!
-				 * termination is guranteed, even when the
+				 * termination is guaranteed, even when the
 				 * combined frame also have a element with
 				 * a bad tag.
 				 */
diff --git a/drivers/net/wireless/ath/ar9170/phy.c b/drivers/net/wireless/ath/ar9170/phy.c
index 0dbfcf79ac96..aa8d06ba1ee4 100644
--- a/drivers/net/wireless/ath/ar9170/phy.c
+++ b/drivers/net/wireless/ath/ar9170/phy.c
@@ -424,7 +424,7 @@ static u32 ar9170_get_default_phy_reg_val(u32 reg, bool is_2ghz, bool is_40mhz)
 
 /*
  * initialize some phy regs from eeprom values in modal_header[]
- * acc. to band and bandwith
+ * acc. to band and bandwidth
  */
 static int ar9170_init_phy_from_eeprom(struct ar9170 *ar,
 				bool is_2ghz, bool is_40mhz)
diff --git a/drivers/net/wireless/ath/ath5k/ani.h b/drivers/net/wireless/ath/ath5k/ani.h
index d0a664039c87..034015397093 100644
--- a/drivers/net/wireless/ath/ath5k/ani.h
+++ b/drivers/net/wireless/ath/ath5k/ani.h
@@ -27,7 +27,7 @@
 #define ATH5K_ANI_RSSI_THR_HIGH		40
 #define ATH5K_ANI_RSSI_THR_LOW		7
 
-/* maximum availabe levels */
+/* maximum available levels */
 #define ATH5K_ANI_MAX_FIRSTEP_LVL	2
 #define ATH5K_ANI_MAX_NOISE_IMM_LVL	1
 
diff --git a/drivers/net/wireless/ath/ath5k/base.c b/drivers/net/wireless/ath/ath5k/base.c
index 4d7f21ee111c..349a5963931b 100644
--- a/drivers/net/wireless/ath/ath5k/base.c
+++ b/drivers/net/wireless/ath/ath5k/base.c
@@ -1953,7 +1953,7 @@ ath5k_beacon_update_timers(struct ath5k_softc *sc, u64 bc_tsf)
 
 #define FUDGE AR5K_TUNE_SW_BEACON_RESP + 3
 	/* We use FUDGE to make sure the next TBTT is ahead of the current TU.
-	 * Since we later substract AR5K_TUNE_SW_BEACON_RESP (10) in the timer
+	 * Since we later subtract AR5K_TUNE_SW_BEACON_RESP (10) in the timer
 	 * configuration we need to make sure it is bigger than that. */
 
 	if (bc_tsf == -1) {
@@ -1971,7 +1971,7 @@ ath5k_beacon_update_timers(struct ath5k_softc *sc, u64 bc_tsf)
 		intval |= AR5K_BEACON_RESET_TSF;
 	} else if (bc_tsf > hw_tsf) {
 		/*
-		 * beacon received, SW merge happend but HW TSF not yet updated.
+		 * beacon received, SW merge happened but HW TSF not yet updated.
 		 * not possible to reconfigure timers yet, but next time we
 		 * receive a beacon with the same BSSID, the hardware will
 		 * automatically update the TSF and then we need to reconfigure
@@ -2651,7 +2651,7 @@ ath5k_reset(struct ath5k_softc *sc, struct ieee80211_channel *chan,
 	synchronize_irq(sc->irq);
 	stop_tasklets(sc);
 
-	/* Save ani mode and disable ANI durring
+	/* Save ani mode and disable ANI during
 	 * reset. If we don't we might get false
 	 * PHY error interrupts. */
 	ani_mode = ah->ah_sc->ani_state.ani_mode;
diff --git a/drivers/net/wireless/ath/ath5k/desc.c b/drivers/net/wireless/ath/ath5k/desc.c
index 16b44ff7dd3e..a8fcc94269f7 100644
--- a/drivers/net/wireless/ath/ath5k/desc.c
+++ b/drivers/net/wireless/ath/ath5k/desc.c
@@ -51,7 +51,7 @@ ath5k_hw_setup_2word_tx_desc(struct ath5k_hw *ah, struct ath5k_desc *desc,
 	/*
 	 * Validate input
 	 * - Zero retries don't make sense.
-	 * - A zero rate will put the HW into a mode where it continously sends
+	 * - A zero rate will put the HW into a mode where it continuously sends
 	 *   noise on the channel, so it is important to avoid this.
 	 */
 	if (unlikely(tx_tries0 == 0)) {
@@ -190,7 +190,7 @@ static int ath5k_hw_setup_4word_tx_desc(struct ath5k_hw *ah,
 	/*
 	 * Validate input
 	 * - Zero retries don't make sense.
-	 * - A zero rate will put the HW into a mode where it continously sends
+	 * - A zero rate will put the HW into a mode where it continuously sends
 	 *   noise on the channel, so it is important to avoid this.
 	 */
 	if (unlikely(tx_tries0 == 0)) {
@@ -300,7 +300,7 @@ ath5k_hw_setup_mrr_tx_desc(struct ath5k_hw *ah, struct ath5k_desc *desc,
 	/*
 	 * Rates can be 0 as long as the retry count is 0 too.
 	 * A zero rate and nonzero retry count will put the HW into a mode where
-	 * it continously sends noise on the channel, so it is important to
+	 * it continuously sends noise on the channel, so it is important to
 	 * avoid this.
 	 */
 	if (unlikely((tx_rate1 == 0 && tx_tries1 != 0) ||
@@ -342,7 +342,7 @@ ath5k_hw_setup_mrr_tx_desc(struct ath5k_hw *ah, struct ath5k_desc *desc,
 \***********************/
 
 /*
- * Proccess the tx status descriptor on 5210/5211
+ * Process the tx status descriptor on 5210/5211
  */
 static int ath5k_hw_proc_2word_tx_status(struct ath5k_hw *ah,
 		struct ath5k_desc *desc, struct ath5k_tx_status *ts)
@@ -394,7 +394,7 @@ static int ath5k_hw_proc_2word_tx_status(struct ath5k_hw *ah,
 }
 
 /*
- * Proccess a tx status descriptor on 5212
+ * Process a tx status descriptor on 5212
  */
 static int ath5k_hw_proc_4word_tx_status(struct ath5k_hw *ah,
 		struct ath5k_desc *desc, struct ath5k_tx_status *ts)
@@ -519,7 +519,7 @@ int ath5k_hw_setup_rx_desc(struct ath5k_hw *ah, struct ath5k_desc *desc,
 }
 
 /*
- * Proccess the rx status descriptor on 5210/5211
+ * Process the rx status descriptor on 5210/5211
  */
 static int ath5k_hw_proc_5210_rx_status(struct ath5k_hw *ah,
 		struct ath5k_desc *desc, struct ath5k_rx_status *rs)
@@ -602,7 +602,7 @@ static int ath5k_hw_proc_5210_rx_status(struct ath5k_hw *ah,
 }
 
 /*
- * Proccess the rx status descriptor on 5212
+ * Process the rx status descriptor on 5212
  */
 static int ath5k_hw_proc_5212_rx_status(struct ath5k_hw *ah,
 					struct ath5k_desc *desc,
diff --git a/drivers/net/wireless/ath/ath5k/eeprom.c b/drivers/net/wireless/ath/ath5k/eeprom.c
index b6561f785c6e..efb672cb31e4 100644
--- a/drivers/net/wireless/ath/ath5k/eeprom.c
+++ b/drivers/net/wireless/ath/ath5k/eeprom.c
@@ -1080,7 +1080,7 @@ ath5k_eeprom_read_pcal_info_5112(struct ath5k_hw *ah, int mode)
  *
  * To recreate the curves we read here the points and interpolate
  * later. Note that in most cases only 2 (higher and lower) curves are
- * used (like RF5112) but vendors have the oportunity to include all
+ * used (like RF5112) but vendors have the opportunity to include all
  * 4 curves on eeprom. The final curve (higher power) has an extra
  * point for better accuracy like RF5112.
  */
@@ -1302,7 +1302,7 @@ ath5k_eeprom_read_pcal_info_2413(struct ath5k_hw *ah, int mode)
 			/*
 			 * Pd gain 0 is not the last pd gain
 			 * so it only has 2 pd points.
-			 * Continue wih pd gain 1.
+			 * Continue with pd gain 1.
 			 */
 			pcinfo->pwr_i[1] = (val >> 10) & 0x1f;
 
diff --git a/drivers/net/wireless/ath/ath5k/pci.c b/drivers/net/wireless/ath/ath5k/pci.c
index 66598a0d1df0..3c44689a700b 100644
--- a/drivers/net/wireless/ath/ath5k/pci.c
+++ b/drivers/net/wireless/ath/ath5k/pci.c
@@ -57,7 +57,7 @@ static void ath5k_pci_read_cachesize(struct ath_common *common, int *csz)
 	*csz = (int)u8tmp;
 
 	/*
-	 * This check was put in to avoid "unplesant" consequences if
+	 * This check was put in to avoid "unpleasant" consequences if
 	 * the bootrom has not fully initialized all PCI devices.
 	 * Sometimes the cache line size register is not set
 	 */
diff --git a/drivers/net/wireless/ath/ath5k/pcu.c b/drivers/net/wireless/ath/ath5k/pcu.c
index a702817daf72..d9b3f828455a 100644
--- a/drivers/net/wireless/ath/ath5k/pcu.c
+++ b/drivers/net/wireless/ath/ath5k/pcu.c
@@ -472,7 +472,7 @@ void ath5k_hw_set_rx_filter(struct ath5k_hw *ah, u32 filter)
 	}
 
 	/*
-	 * The AR5210 uses promiscous mode to detect radar activity
+	 * The AR5210 uses promiscuous mode to detect radar activity
 	 */
 	if (ah->ah_version == AR5K_AR5210 &&
 			(filter & AR5K_RX_FILTER_RADARERR)) {
@@ -706,8 +706,8 @@ ath5k_check_timer_win(int a, int b, int window, int intval)
  * The need for this function arises from the fact that we have 4 separate
  * HW timer registers (TIMER0 - TIMER3), which are closely related to the
  * next beacon target time (NBTT), and that the HW updates these timers
- * seperately based on the current TSF value. The hardware increments each
- * timer by the beacon interval, when the local TSF coverted to TU is equal
+ * separately based on the current TSF value. The hardware increments each
+ * timer by the beacon interval, when the local TSF converted to TU is equal
  * to the value stored in the timer.
  *
  * The reception of a beacon with the same BSSID can update the local HW TSF
diff --git a/drivers/net/wireless/ath/ath5k/phy.c b/drivers/net/wireless/ath/ath5k/phy.c
index 62ce2f4e8605..55441913344d 100644
--- a/drivers/net/wireless/ath/ath5k/phy.c
+++ b/drivers/net/wireless/ath/ath5k/phy.c
@@ -335,11 +335,11 @@ static void ath5k_hw_wait_for_synth(struct ath5k_hw *ah,
  * http://madwifi-project.org/ticket/1659
  * with various measurements and diagrams
  *
- * TODO: Deal with power drops due to probes by setting an apropriate
+ * TODO: Deal with power drops due to probes by setting an appropriate
  * tx power on the probe packets ! Make this part of the calibration process.
  */
 
-/* Initialize ah_gain durring attach */
+/* Initialize ah_gain during attach */
 int ath5k_hw_rfgain_opt_init(struct ath5k_hw *ah)
 {
 	/* Initialize the gain optimization values */
@@ -1049,7 +1049,7 @@ static int ath5k_hw_rfregs_init(struct ath5k_hw *ah,
 \**************************/
 
 /*
- * Convertion needed for RF5110
+ * Conversion needed for RF5110
  */
 static u32 ath5k_hw_rf5110_chan2athchan(struct ieee80211_channel *channel)
 {
@@ -1088,7 +1088,7 @@ static int ath5k_hw_rf5110_channel(struct ath5k_hw *ah,
 }
 
 /*
- * Convertion needed for 5111
+ * Conversion needed for 5111
  */
 static int ath5k_hw_rf5111_chan2athchan(unsigned int ieee,
 		struct ath5k_athchan_2ghz *athchan)
@@ -2201,7 +2201,7 @@ ath5k_create_power_curve(s16 pmin, s16 pmax,
 /*
  * Get the surrounding per-channel power calibration piers
  * for a given frequency so that we can interpolate between
- * them and come up with an apropriate dataset for our current
+ * them and come up with an appropriate dataset for our current
  * channel.
  */
 static void
@@ -2618,7 +2618,7 @@ ath5k_write_pcdac_table(struct ath5k_hw *ah)
 /*
  * Set the gain boundaries and create final Power to PDADC table
  *
- * We can have up to 4 pd curves, we need to do a simmilar process
+ * We can have up to 4 pd curves, we need to do a similar process
  * as we do for RF5112. This time we don't have an edge_flag but we
  * set the gain boundaries on a separate register.
  */
@@ -2826,13 +2826,13 @@ ath5k_setup_channel_powertable(struct ath5k_hw *ah,
 	u32 target = channel->center_freq;
 	int pdg, i;
 
-	/* Get surounding freq piers for this channel */
+	/* Get surrounding freq piers for this channel */
 	ath5k_get_chan_pcal_surrounding_piers(ah, channel,
 						&pcinfo_L,
 						&pcinfo_R);
 
 	/* Loop over pd gain curves on
-	 * surounding freq piers by index */
+	 * surrounding freq piers by index */
 	for (pdg = 0; pdg < ee->ee_pd_gains[ee_mode]; pdg++) {
 
 		/* Fill curves in reverse order
@@ -2923,7 +2923,7 @@ ath5k_setup_channel_powertable(struct ath5k_hw *ah,
 		}
 
 		/* Interpolate between curves
-		 * of surounding freq piers to
+		 * of surrounding freq piers to
 		 * get the final curve for this
 		 * pd gain. Re-use tmpL for interpolation
 		 * output */
@@ -2947,7 +2947,7 @@ ath5k_setup_channel_powertable(struct ath5k_hw *ah,
 
 	/* Fill min and max power levels for this
 	 * channel by interpolating the values on
-	 * surounding channels to complete the dataset */
+	 * surrounding channels to complete the dataset */
 	ah->ah_txpower.txp_min_pwr = ath5k_get_interpolated_value(target,
 					(s16) pcinfo_L->freq,
 					(s16) pcinfo_R->freq,
@@ -3179,7 +3179,7 @@ ath5k_hw_txpower(struct ath5k_hw *ah, struct ieee80211_channel *channel,
 
 	/* FIXME: TPC scale reduction */
 
-	/* Get surounding channels for per-rate power table
+	/* Get surrounding channels for per-rate power table
 	 * calibration */
 	ath5k_get_rate_pcal_data(ah, channel, &rate_info);
 
diff --git a/drivers/net/wireless/ath/ath5k/reg.h b/drivers/net/wireless/ath/ath5k/reg.h
index e1c9abd8c879..d12b827033c1 100644
--- a/drivers/net/wireless/ath/ath5k/reg.h
+++ b/drivers/net/wireless/ath/ath5k/reg.h
@@ -132,8 +132,8 @@
  * As i can see in ar5k_ar5210_tx_start Reyk uses some of the values of BCR
  * for this register, so i guess TQ1V,TQ1FV and BDMAE have the same meaning
  * here and SNP/SNAP means "snapshot" (so this register gets synced with BCR).
- * So SNAPPEDBCRVALID sould also stand for "snapped BCR -values- valid", so i
- * renamed it to SNAPSHOTSVALID to make more sense. I realy have no idea what
+ * So SNAPPEDBCRVALID should also stand for "snapped BCR -values- valid", so i
+ * renamed it to SNAPSHOTSVALID to make more sense. I really have no idea what
  * else can it be. I also renamed SNPBCMD to SNPADHOC to match BCR.
  */
 #define AR5K_BSR		0x002c			/* Register Address */
@@ -283,7 +283,7 @@
  */
 #define AR5K_ISR		0x001c			/* Register Address [5210] */
 #define AR5K_PISR		0x0080			/* Register Address [5211+] */
-#define AR5K_ISR_RXOK		0x00000001	/* Frame successfuly recieved */
+#define AR5K_ISR_RXOK		0x00000001	/* Frame successfuly received */
 #define AR5K_ISR_RXDESC		0x00000002	/* RX descriptor request */
 #define AR5K_ISR_RXERR		0x00000004	/* Receive error */
 #define AR5K_ISR_RXNOFRM	0x00000008	/* No frame received (receive timeout) */
@@ -372,12 +372,12 @@
 /*
  * Interrupt Mask Registers
  *
- * As whith ISRs 5210 has one IMR (AR5K_IMR) and 5211/5212 has one primary
+ * As with ISRs 5210 has one IMR (AR5K_IMR) and 5211/5212 has one primary
  * (AR5K_PIMR) and 4 secondary IMRs (AR5K_SIMRx). Note that ISR/IMR flags match.
  */
 #define	AR5K_IMR		0x0020			/* Register Address [5210] */
 #define AR5K_PIMR		0x00a0			/* Register Address [5211+] */
-#define AR5K_IMR_RXOK		0x00000001	/* Frame successfuly recieved*/
+#define AR5K_IMR_RXOK		0x00000001	/* Frame successfuly received*/
 #define AR5K_IMR_RXDESC		0x00000002	/* RX descriptor request*/
 #define AR5K_IMR_RXERR		0x00000004	/* Receive error*/
 #define AR5K_IMR_RXNOFRM	0x00000008	/* No frame received (receive timeout)*/
@@ -895,7 +895,7 @@
 #define AR5K_PCICFG_SL_INTEN		0x00000800	/* Enable interrupts when asleep */
 #define AR5K_PCICFG_LED_BCTL		0x00001000	/* Led blink (?) [5210] */
 #define AR5K_PCICFG_RETRY_FIX		0x00001000	/* Enable pci core retry fix */
-#define AR5K_PCICFG_SL_INPEN		0x00002000	/* Sleep even whith pending interrupts*/
+#define AR5K_PCICFG_SL_INPEN		0x00002000	/* Sleep even with pending interrupts*/
 #define AR5K_PCICFG_SPWR_DN		0x00010000	/* Mask for power status */
 #define AR5K_PCICFG_LEDMODE		0x000e0000	/* Ledmode [5211+] */
 #define AR5K_PCICFG_LEDMODE_PROP	0x00000000	/* Blink on standard traffic [5211+] */
diff --git a/drivers/net/wireless/ath/ath9k/ar5008_phy.c b/drivers/net/wireless/ath/ath9k/ar5008_phy.c
index ffcf44a4058b..106c0b06cf55 100644
--- a/drivers/net/wireless/ath/ath9k/ar5008_phy.c
+++ b/drivers/net/wireless/ath/ath9k/ar5008_phy.c
@@ -142,7 +142,7 @@ static void ar5008_hw_force_bias(struct ath_hw *ah, u16 synth_freq)
 
 /**
  * ar5008_hw_set_channel - tune to a channel on the external AR2133/AR5133 radios
- * @ah: atheros hardware stucture
+ * @ah: atheros hardware structure
  * @chan:
  *
  * For the external AR2133/AR5133 radios, takes the MHz channel value and set
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
index 4a9271802991..6eadf975ae48 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
@@ -3240,7 +3240,7 @@ static int ar9300_compress_decision(struct ath_hw *ah,
 			eep = ar9003_eeprom_struct_find_by_id(reference);
 			if (eep == NULL) {
 				ath_dbg(common, ATH_DBG_EEPROM,
-					"cant find reference eeprom struct %d\n",
+					"can't find reference eeprom struct %d\n",
 					reference);
 				return -1;
 			}
diff --git a/drivers/net/wireless/ath/ath9k/htc_hst.c b/drivers/net/wireless/ath/ath9k/htc_hst.c
index c41ab8c30161..62e139a30a74 100644
--- a/drivers/net/wireless/ath/ath9k/htc_hst.c
+++ b/drivers/net/wireless/ath/ath9k/htc_hst.c
@@ -360,7 +360,7 @@ ret:
  * HTC Messages are handled directly here and the obtained SKB
  * is freed.
  *
- * Sevice messages (Data, WMI) passed to the corresponding
+ * Service messages (Data, WMI) passed to the corresponding
  * endpoint RX handlers, which have to free the SKB.
  */
 void ath9k_htc_rx_msg(struct htc_target *htc_handle,
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index 115f162c617a..dddb85de622d 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -1048,6 +1048,8 @@ static int ath9k_start(struct ieee80211_hw *hw)
 		"Starting driver with initial channel: %d MHz\n",
 		curchan->center_freq);
 
+	ath9k_ps_wakeup(sc);
+
 	mutex_lock(&sc->mutex);
 
 	/* setup initial channel */
@@ -1143,6 +1145,8 @@ static int ath9k_start(struct ieee80211_hw *hw)
 mutex_unlock:
 	mutex_unlock(&sc->mutex);
 
+	ath9k_ps_restore(sc);
+
 	return r;
 }
 
@@ -2160,6 +2164,8 @@ static void ath9k_flush(struct ieee80211_hw *hw, bool drop)
 	if (!ath_drain_all_txq(sc, false))
 		ath_reset(sc, false);
 
+	ieee80211_wake_queues(hw);
+
 out:
 	ieee80211_queue_delayed_work(hw, &sc->tx_complete_work, 0);
 	mutex_unlock(&sc->mutex);
diff --git a/drivers/net/wireless/ath/ath9k/pci.c b/drivers/net/wireless/ath/ath9k/pci.c
index e83128c50f7b..9c65459be100 100644
--- a/drivers/net/wireless/ath/ath9k/pci.c
+++ b/drivers/net/wireless/ath/ath9k/pci.c
@@ -44,7 +44,7 @@ static void ath_pci_read_cachesize(struct ath_common *common, int *csz)
 	*csz = (int)u8tmp;
 
 	/*
-	 * This check was put in to avoid "unplesant" consequences if
+	 * This check was put in to avoid "unpleasant" consequences if
 	 * the bootrom has not fully initialized all PCI devices.
 	 * Sometimes the cache line size register is not set
 	 */
diff --git a/drivers/net/wireless/ath/ath9k/rc.c b/drivers/net/wireless/ath/ath9k/rc.c
index 960d717ca7c2..4c0d36a6980f 100644
--- a/drivers/net/wireless/ath/ath9k/rc.c
+++ b/drivers/net/wireless/ath/ath9k/rc.c
@@ -792,7 +792,7 @@ static void ath_get_rate(void *priv, struct ieee80211_sta *sta, void *priv_sta,
 
 		tx_info->flags |= IEEE80211_TX_CTL_RATE_CTRL_PROBE;
 	} else {
-		/* Set the choosen rate. No RTS for first series entry. */
+		/* Set the chosen rate. No RTS for first series entry. */
 		ath_rc_rate_set_series(rate_table, &rates[i++], txrc,
 				       try_per_rate, rix, 0);
 	}
@@ -1328,7 +1328,7 @@ static void ath_tx_status(void *priv, struct ieee80211_supported_band *sband,
 
 	hdr = (struct ieee80211_hdr *)skb->data;
 	fc = hdr->frame_control;
-	for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
+	for (i = 0; i < sc->hw->max_rates; i++) {
 		struct ieee80211_tx_rate *rate = &tx_info->status.rates[i];
 		if (!rate->count)
 			break;
diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c
index ef22096d40c9..88fa7fdffd05 100644
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -628,8 +628,8 @@ static u32 ath_lookup_rate(struct ath_softc *sc, struct ath_buf *bf,
 				 (u32)ATH_AMPDU_LIMIT_MAX);
 
 	/*
-	 * h/w can accept aggregates upto 16 bit lengths (65535).
-	 * The IE, however can hold upto 65536, which shows up here
+	 * h/w can accept aggregates up to 16 bit lengths (65535).
+	 * The IE, however can hold up to 65536, which shows up here
 	 * as zero. Ignore 65536 since we  are constrained by hw.
 	 */
 	if (tid->an->maxampdu)
@@ -1725,8 +1725,8 @@ static void ath_tx_start_dma(struct ath_softc *sc, struct ath_buf *bf,
 	u8 tidno;
 
 	spin_lock_bh(&txctl->txq->axq_lock);
-
-	if (ieee80211_is_data_qos(hdr->frame_control) && txctl->an) {
+	if ((sc->sc_flags & SC_OP_TXAGGR) && txctl->an &&
+		ieee80211_is_data_qos(hdr->frame_control)) {
 		tidno = ieee80211_get_qos_ctl(hdr)[0] &
 			IEEE80211_QOS_CTL_TID_MASK;
 		tid = ATH_AN_2_TID(txctl->an, tidno);
diff --git a/drivers/net/wireless/ath/carl9170/carl9170.h b/drivers/net/wireless/ath/carl9170/carl9170.h
index c6a5fae634a0..3d4ed5863732 100644
--- a/drivers/net/wireless/ath/carl9170/carl9170.h
+++ b/drivers/net/wireless/ath/carl9170/carl9170.h
@@ -161,7 +161,7 @@ struct carl9170_sta_tid {
  * Naturally: The higher the limit, the faster the device CAN send.
  * However, even a slight over-commitment at the wrong time and the
  * hardware is doomed to send all already-queued frames at suboptimal
- * rates. This in turn leads to an enourmous amount of unsuccessful
+ * rates. This in turn leads to an enormous amount of unsuccessful
  * retries => Latency goes up, whereas the throughput goes down. CRASH!
  */
 #define CARL9170_NUM_TX_LIMIT_HARD	((AR9170_TXQ_DEPTH * 3) / 2)
@@ -443,6 +443,7 @@ struct carl9170_ba_stats {
 	u8 ampdu_len;
 	u8 ampdu_ack_len;
 	bool clear;
+	bool req;
 };
 
 struct carl9170_sta_info {
diff --git a/drivers/net/wireless/ath/carl9170/main.c b/drivers/net/wireless/ath/carl9170/main.c
index ede3d7e5a048..89fe60accf85 100644
--- a/drivers/net/wireless/ath/carl9170/main.c
+++ b/drivers/net/wireless/ath/carl9170/main.c
@@ -1355,6 +1355,7 @@ static int carl9170_op_ampdu_action(struct ieee80211_hw *hw,
 		tid_info = rcu_dereference(sta_info->agg[tid]);
 
 		sta_info->stats[tid].clear = true;
+		sta_info->stats[tid].req = false;
 
 		if (tid_info) {
 			bitmap_zero(tid_info->bitmap, CARL9170_BAW_SIZE);
diff --git a/drivers/net/wireless/ath/carl9170/phy.c b/drivers/net/wireless/ath/carl9170/phy.c
index b6b0de600506..b6ae0e179c8d 100644
--- a/drivers/net/wireless/ath/carl9170/phy.c
+++ b/drivers/net/wireless/ath/carl9170/phy.c
@@ -427,7 +427,7 @@ static u32 carl9170_def_val(u32 reg, bool is_2ghz, bool is_40mhz)
 
 /*
  * initialize some phy regs from eeprom values in modal_header[]
- * acc. to band and bandwith
+ * acc. to band and bandwidth
  */
 static int carl9170_init_phy_from_eeprom(struct ar9170 *ar,
 				bool is_2ghz, bool is_40mhz)
diff --git a/drivers/net/wireless/ath/carl9170/rx.c b/drivers/net/wireless/ath/carl9170/rx.c
index 84866a4b8350..ec21ea9fd8d5 100644
--- a/drivers/net/wireless/ath/carl9170/rx.c
+++ b/drivers/net/wireless/ath/carl9170/rx.c
@@ -849,7 +849,7 @@ static void carl9170_rx_stream(struct ar9170 *ar, void *buf, unsigned int len)
 				/*
 				 * nested carl9170_rx_stream call!
 				 *
-				 * termination is guranteed, even when the
+				 * termination is guaranteed, even when the
 				 * combined frame also have an element with
 				 * a bad tag.
 				 */
diff --git a/drivers/net/wireless/ath/carl9170/tx.c b/drivers/net/wireless/ath/carl9170/tx.c
index 0ef70b6fc512..cb70ed7ec5cc 100644
--- a/drivers/net/wireless/ath/carl9170/tx.c
+++ b/drivers/net/wireless/ath/carl9170/tx.c
@@ -383,6 +383,7 @@ static void carl9170_tx_status_process_ampdu(struct ar9170 *ar,
 
 	if (sta_info->stats[tid].clear) {
 		sta_info->stats[tid].clear = false;
+		sta_info->stats[tid].req = false;
 		sta_info->stats[tid].ampdu_len = 0;
 		sta_info->stats[tid].ampdu_ack_len = 0;
 	}
@@ -391,10 +392,16 @@ static void carl9170_tx_status_process_ampdu(struct ar9170 *ar,
 	if (txinfo->status.rates[0].count == 1)
 		sta_info->stats[tid].ampdu_ack_len++;
 
+	if (!(txinfo->flags & IEEE80211_TX_STAT_ACK))
+		sta_info->stats[tid].req = true;
+
 	if (super->f.mac_control & cpu_to_le16(AR9170_TX_MAC_IMM_BA)) {
 		super->s.rix = sta_info->stats[tid].ampdu_len;
 		super->s.cnt = sta_info->stats[tid].ampdu_ack_len;
 		txinfo->flags |= IEEE80211_TX_STAT_AMPDU;
+		if (sta_info->stats[tid].req)
+			txinfo->flags |= IEEE80211_TX_STAT_AMPDU_NO_BACK;
+
 		sta_info->stats[tid].clear = true;
 	}
 	spin_unlock_bh(&tid_info->lock);
diff --git a/drivers/net/wireless/ath/carl9170/usb.c b/drivers/net/wireless/ath/carl9170/usb.c
index f82c400be288..2fb53d067512 100644
--- a/drivers/net/wireless/ath/carl9170/usb.c
+++ b/drivers/net/wireless/ath/carl9170/usb.c
@@ -430,7 +430,7 @@ static void carl9170_usb_rx_complete(struct urb *urb)
 			 * The system is too slow to cope with
 			 * the enormous workload. We have simply
 			 * run out of active rx urbs and this
-			 * unfortunatly leads to an unpredictable
+			 * unfortunately leads to an unpredictable
 			 * device.
 			 */
 
diff --git a/drivers/net/wireless/ath/hw.c b/drivers/net/wireless/ath/hw.c
index 183c28281385..cc11d66f15bc 100644
--- a/drivers/net/wireless/ath/hw.c
+++ b/drivers/net/wireless/ath/hw.c
@@ -86,7 +86,7 @@
  * IFRAME-01:  0110
  *
  * An easy eye-inspeciton of this already should tell you that this frame
- * will not pass our check. This is beacuse the bssid_mask tells the
+ * will not pass our check. This is because the bssid_mask tells the
  * hardware to only look at the second least significant bit and the
  * common bit amongst the MAC and BSSIDs is 0, this frame has the 2nd LSB
  * as 1, which does not match 0.
diff --git a/drivers/net/wireless/ath/regd.c b/drivers/net/wireless/ath/regd.c
index f828f294ba89..0e1b8793c864 100644
--- a/drivers/net/wireless/ath/regd.c
+++ b/drivers/net/wireless/ath/regd.c
@@ -268,7 +268,7 @@ ath_reg_apply_active_scan_flags(struct wiphy *wiphy,
 	}
 
 	/*
-	 * If a country IE has been recieved check its rule for this
+	 * If a country IE has been received check its rule for this
 	 * channel first before enabling active scan. The passive scan
 	 * would have been enforced by the initial processing of our
 	 * custom regulatory domain.
@@ -476,7 +476,7 @@ ath_regd_init_wiphy(struct ath_regulatory *reg,
 		wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
 	} else {
 		/*
-		 * This gets applied in the case of the absense of CRDA,
+		 * This gets applied in the case of the absence of CRDA,
 		 * it's our own custom world regulatory domain, similar to
 		 * cfg80211's but we enable passive scanning.
 		 */
diff --git a/drivers/net/wireless/atmel.c b/drivers/net/wireless/atmel.c
index 46e382ed46aa..39a11e8af4fa 100644
--- a/drivers/net/wireless/atmel.c
+++ b/drivers/net/wireless/atmel.c
@@ -439,7 +439,7 @@ static u8 mac_reader[] = {
 };
 
 struct atmel_private {
-	void *card; /* Bus dependent stucture varies for PCcard */
+	void *card; /* Bus dependent structure varies for PCcard */
 	int (*present_callback)(void *); /* And callback which uses it */
 	char firmware_id[32];
 	AtmelFWType firmware_type;
@@ -3895,7 +3895,7 @@ static int reset_atmel_card(struct net_device *dev)
 
 	   This routine is also responsible for initialising some
 	   hardware-specific fields in the atmel_private structure,
-	   including a copy of the firmware's hostinfo stucture
+	   including a copy of the firmware's hostinfo structure
 	   which is the route into the rest of the firmware datastructures. */
 
 	struct atmel_private *priv = netdev_priv(dev);
diff --git a/drivers/net/wireless/atmel_cs.c b/drivers/net/wireless/atmel_cs.c
index c96e19da2949..05263516c113 100644
--- a/drivers/net/wireless/atmel_cs.c
+++ b/drivers/net/wireless/atmel_cs.c
@@ -99,7 +99,7 @@ static void atmel_detach(struct pcmcia_device *link)
 }
 
 /* Call-back function to interrogate PCMCIA-specific information
-   about the current existance of the card */
+   about the current existence of the card */
 static int card_present(void *arg)
 {
 	struct pcmcia_device *link = (struct pcmcia_device *)arg;
diff --git a/drivers/net/wireless/b43/b43.h b/drivers/net/wireless/b43/b43.h
index bd4cb75b6ca3..229f4388f790 100644
--- a/drivers/net/wireless/b43/b43.h
+++ b/drivers/net/wireless/b43/b43.h
@@ -648,7 +648,7 @@ struct b43_request_fw_context {
 	char errors[B43_NR_FWTYPES][128];
 	/* Temporary buffer for storing the firmware name. */
 	char fwname[64];
-	/* A fatal error occured while requesting. Firmware reqest
+	/* A fatal error occurred while requesting. Firmware reqest
 	 * can not continue, as any other reqest will also fail. */
 	int fatal_failure;
 };
diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c
index 57eb5b649730..d59b0168c14a 100644
--- a/drivers/net/wireless/b43/main.c
+++ b/drivers/net/wireless/b43/main.c
@@ -4010,7 +4010,7 @@ static int b43_wireless_core_start(struct b43_wldev *dev)
 	b43_mac_enable(dev);
 	b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, dev->irq_mask);
 
-	/* Start maintainance work */
+	/* Start maintenance work */
 	b43_periodic_tasks_setup(dev);
 
 	b43_leds_init(dev);
diff --git a/drivers/net/wireless/b43/phy_g.h b/drivers/net/wireless/b43/phy_g.h
index 8569fdd4c6be..5413c906a3e7 100644
--- a/drivers/net/wireless/b43/phy_g.h
+++ b/drivers/net/wireless/b43/phy_g.h
@@ -164,7 +164,7 @@ struct b43_phy_g {
 	/* Current Interference Mitigation mode */
 	int interfmode;
 	/* Stack of saved values from the Interference Mitigation code.
-	 * Each value in the stack is layed out as follows:
+	 * Each value in the stack is laid out as follows:
 	 * bit 0-11:  offset
 	 * bit 12-15: register ID
 	 * bit 16-32: value
diff --git a/drivers/net/wireless/b43/phy_n.h b/drivers/net/wireless/b43/phy_n.h
index 001e841f118c..e789a89f1047 100644
--- a/drivers/net/wireless/b43/phy_n.h
+++ b/drivers/net/wireless/b43/phy_n.h
@@ -703,7 +703,7 @@
 #define B43_NPHY_CHAN_ESTHANG			B43_PHY_N(0x21D) /* Channel estimate hang */
 #define B43_NPHY_FINERX2_CGC			B43_PHY_N(0x221) /* Fine RX 2 clock gate control */
 #define  B43_NPHY_FINERX2_CGC_DECGC		0x0008 /* Decode gated clocks */
-#define B43_NPHY_TXPCTL_INIT			B43_PHY_N(0x222) /* TX power controll init */
+#define B43_NPHY_TXPCTL_INIT			B43_PHY_N(0x222) /* TX power control init */
 #define  B43_NPHY_TXPCTL_INIT_PIDXI1		0x00FF /* Power index init 1 */
 #define  B43_NPHY_TXPCTL_INIT_PIDXI1_SHIFT	0
 #define B43_NPHY_PAPD_EN0			B43_PHY_N(0x297) /* PAPD Enable0 TBD */
diff --git a/drivers/net/wireless/b43legacy/b43legacy.h b/drivers/net/wireless/b43legacy/b43legacy.h
index c81b2f53b0c5..23583be1ee0b 100644
--- a/drivers/net/wireless/b43legacy/b43legacy.h
+++ b/drivers/net/wireless/b43legacy/b43legacy.h
@@ -488,7 +488,7 @@ struct b43legacy_phy {
 	/* Current Interference Mitigation mode */
 	int interfmode;
 	/* Stack of saved values from the Interference Mitigation code.
-	 * Each value in the stack is layed out as follows:
+	 * Each value in the stack is laid out as follows:
 	 * bit 0-11:  offset
 	 * bit 12-15: register ID
 	 * bit 16-32: value
diff --git a/drivers/net/wireless/hostap/hostap_ap.c b/drivers/net/wireless/hostap/hostap_ap.c
index 18d63f57777d..3d05dc15c6b8 100644
--- a/drivers/net/wireless/hostap/hostap_ap.c
+++ b/drivers/net/wireless/hostap/hostap_ap.c
@@ -2359,7 +2359,7 @@ int prism2_ap_get_sta_qual(local_info_t *local, struct sockaddr addr[],
 }
 
 
-/* Translate our list of Access Points & Stations to a card independant
+/* Translate our list of Access Points & Stations to a card independent
  * format that the Wireless Tools will understand - Jean II */
 int prism2_ap_translate_scan(struct net_device *dev,
 			     struct iw_request_info *info, char *buffer)
diff --git a/drivers/net/wireless/hostap/hostap_ap.h b/drivers/net/wireless/hostap/hostap_ap.h
index 655ceeba9612..334e2d0b8e11 100644
--- a/drivers/net/wireless/hostap/hostap_ap.h
+++ b/drivers/net/wireless/hostap/hostap_ap.h
@@ -114,7 +114,7 @@ struct sta_info {
  * has passed since last received frame from the station, a nullfunc data
  * frame is sent to the station. If this frame is not acknowledged and no other
  * frames have been received, the station will be disassociated after
- * AP_DISASSOC_DELAY. Similarily, a the station will be deauthenticated after
+ * AP_DISASSOC_DELAY. Similarly, a the station will be deauthenticated after
  * AP_DEAUTH_DELAY. AP_TIMEOUT_RESOLUTION is the resolution that is used with
  * max inactivity timer. */
 #define AP_MAX_INACTIVITY_SEC (5 * 60)
diff --git a/drivers/net/wireless/hostap/hostap_ioctl.c b/drivers/net/wireless/hostap/hostap_ioctl.c
index 6038633ef361..12de46407c71 100644
--- a/drivers/net/wireless/hostap/hostap_ioctl.c
+++ b/drivers/net/wireless/hostap/hostap_ioctl.c
@@ -1945,7 +1945,7 @@ static char * __prism2_translate_scan(local_info_t *local,
 }
 
 
-/* Translate scan data returned from the card to a card independant
+/* Translate scan data returned from the card to a card independent
  * format that the Wireless Tools will understand - Jean II */
 static inline int prism2_translate_scan(local_info_t *local,
 					struct iw_request_info *info,
@@ -2043,7 +2043,7 @@ static inline int prism2_ioctl_giwscan_sta(struct net_device *dev,
 		 * until results are ready for various reasons.
 		 * First, managing wait queues is complex and racy
 		 * (there may be multiple simultaneous callers).
-		 * Second, we grab some rtnetlink lock before comming
+		 * Second, we grab some rtnetlink lock before coming
 		 * here (in dev_ioctl()).
 		 * Third, the caller can wait on the Wireless Event
 		 * - Jean II */
diff --git a/drivers/net/wireless/hostap/hostap_wlan.h b/drivers/net/wireless/hostap/hostap_wlan.h
index 1c66b3c1030d..88dc6a52bdf1 100644
--- a/drivers/net/wireless/hostap/hostap_wlan.h
+++ b/drivers/net/wireless/hostap/hostap_wlan.h
@@ -853,7 +853,7 @@ struct local_info {
 	struct work_struct comms_qual_update;
 
 	/* RSSI to dBm adjustment (for RX descriptor fields) */
-	int rssi_to_dBm; /* substract from RSSI to get approximate dBm value */
+	int rssi_to_dBm; /* subtract from RSSI to get approximate dBm value */
 
 	/* BSS list / protected by local->lock */
 	struct list_head bss_list;
diff --git a/drivers/net/wireless/ipw2x00/ipw2100.c b/drivers/net/wireless/ipw2x00/ipw2100.c
index 4b97f918daff..44307753587d 100644
--- a/drivers/net/wireless/ipw2x00/ipw2100.c
+++ b/drivers/net/wireless/ipw2x00/ipw2100.c
@@ -63,7 +63,7 @@ When data is sent to the firmware, the first TBD is used to indicate to the
 firmware if a Command or Data is being sent.  If it is Command, all of the
 command information is contained within the physical address referred to by the
 TBD.  If it is Data, the first TBD indicates the type of data packet, number
-of fragments, etc.  The next TBD then referrs to the actual packet location.
+of fragments, etc.  The next TBD then refers to the actual packet location.
 
 The Tx flow cycle is as follows:
 
diff --git a/drivers/net/wireless/ipw2x00/ipw2200.c b/drivers/net/wireless/ipw2x00/ipw2200.c
index 160881f234cc..42c3fe37af64 100644
--- a/drivers/net/wireless/ipw2x00/ipw2200.c
+++ b/drivers/net/wireless/ipw2x00/ipw2200.c
@@ -1181,7 +1181,7 @@ static void ipw_led_shutdown(struct ipw_priv *priv)
 /*
  * The following adds a new attribute to the sysfs representation
  * of this device driver (i.e. a new file in /sys/bus/pci/drivers/ipw/)
- * used for controling the debug level.
+ * used for controlling the debug level.
  *
  * See the level definitions in ipw for details.
  */
@@ -3763,7 +3763,7 @@ static int ipw_queue_tx_init(struct ipw_priv *priv,
 
 	q->txb = kmalloc(sizeof(q->txb[0]) * count, GFP_KERNEL);
 	if (!q->txb) {
-		IPW_ERROR("vmalloc for auxilary BD structures failed\n");
+		IPW_ERROR("vmalloc for auxiliary BD structures failed\n");
 		return -ENOMEM;
 	}
 
@@ -5581,7 +5581,7 @@ static int ipw_find_adhoc_network(struct ipw_priv *priv,
 		return 0;
 	}
 
-	/* Verify privacy compatability */
+	/* Verify privacy compatibility */
 	if (((priv->capability & CAP_PRIVACY_ON) ? 1 : 0) !=
 	    ((network->capability & WLAN_CAPABILITY_PRIVACY) ? 1 : 0)) {
 		IPW_DEBUG_MERGE("Network '%s (%pM)' excluded "
@@ -5808,7 +5808,7 @@ static int ipw_best_network(struct ipw_priv *priv,
 		return 0;
 	}
 
-	/* Verify privacy compatability */
+	/* Verify privacy compatibility */
 	if (((priv->capability & CAP_PRIVACY_ON) ? 1 : 0) !=
 	    ((network->capability & WLAN_CAPABILITY_PRIVACY) ? 1 : 0)) {
 		IPW_DEBUG_ASSOC("Network '%s (%pM)' excluded "
@@ -8184,7 +8184,7 @@ static void ipw_handle_promiscuous_rx(struct ipw_priv *priv,
 static int is_network_packet(struct ipw_priv *priv,
 				    struct libipw_hdr_4addr *header)
 {
-	/* Filter incoming packets to determine if they are targetted toward
+	/* Filter incoming packets to determine if they are targeted toward
 	 * this network, discarding packets coming from ourselves */
 	switch (priv->ieee->iw_mode) {
 	case IW_MODE_ADHOC:	/* Header: Dest. | Source    | BSSID */
@@ -8340,9 +8340,9 @@ static void ipw_handle_mgmt_packet(struct ipw_priv *priv,
 }
 
 /*
- * Main entry function for recieving a packet with 80211 headers.  This
+ * Main entry function for receiving a packet with 80211 headers.  This
  * should be called when ever the FW has notified us that there is a new
- * skb in the recieve queue.
+ * skb in the receive queue.
  */
 static void ipw_rx(struct ipw_priv *priv)
 {
@@ -8683,7 +8683,7 @@ static int ipw_sw_reset(struct ipw_priv *priv, int option)
  * functions defined in ipw_main to provide the HW interaction.
  *
  * The exception to this is the use of the ipw_get_ordinal()
- * function used to poll the hardware vs. making unecessary calls.
+ * function used to poll the hardware vs. making unnecessary calls.
  *
  */
 
@@ -10419,7 +10419,7 @@ static void ipw_handle_promiscuous_tx(struct ipw_priv *priv,
 
 	memset(&dummystats, 0, sizeof(dummystats));
 
-	/* Filtering of fragment chains is done agains the first fragment */
+	/* Filtering of fragment chains is done against the first fragment */
 	hdr = (void *)txb->fragments[0]->data;
 	if (libipw_is_management(le16_to_cpu(hdr->frame_control))) {
 		if (filter & IPW_PROM_NO_MGMT)
diff --git a/drivers/net/wireless/ipw2x00/libipw_rx.c b/drivers/net/wireless/ipw2x00/libipw_rx.c
index 0de1b1893220..e5ad76cd77da 100644
--- a/drivers/net/wireless/ipw2x00/libipw_rx.c
+++ b/drivers/net/wireless/ipw2x00/libipw_rx.c
@@ -925,7 +925,7 @@ drop_free:
 static u8 qos_oui[QOS_OUI_LEN] = { 0x00, 0x50, 0xF2 };
 
 /*
-* Make ther structure we read from the beacon packet has
+* Make the structure we read from the beacon packet to have
 * the right values
 */
 static int libipw_verify_qos_info(struct libipw_qos_information_element
diff --git a/drivers/net/wireless/iwlegacy/iwl-core.c b/drivers/net/wireless/iwlegacy/iwl-core.c
index d418b647be80..7007d61bb6b5 100644
--- a/drivers/net/wireless/iwlegacy/iwl-core.c
+++ b/drivers/net/wireless/iwlegacy/iwl-core.c
@@ -1030,7 +1030,7 @@ int iwl_legacy_apm_init(struct iwl_priv *priv)
 	/*
 	 * Enable HAP INTA (interrupt from management bus) to
 	 * wake device's PCI Express link L1a -> L0s
-	 * NOTE:  This is no-op for 3945 (non-existant bit)
+	 * NOTE:  This is no-op for 3945 (non-existent bit)
 	 */
 	iwl_legacy_set_bit(priv, CSR_HW_IF_CONFIG_REG,
 				    CSR_HW_IF_CONFIG_REG_BIT_HAP_WAKE_L1A);
@@ -1805,6 +1805,15 @@ iwl_legacy_mac_change_interface(struct ieee80211_hw *hw,
 
 	mutex_lock(&priv->mutex);
 
+	if (!ctx->vif || !iwl_legacy_is_ready_rf(priv)) {
+		/*
+		 * Huh? But wait ... this can maybe happen when
+		 * we're in the middle of a firmware restart!
+		 */
+		err = -EBUSY;
+		goto out;
+	}
+
 	interface_modes = ctx->interface_modes | ctx->exclusive_interface_modes;
 
 	if (!(interface_modes & BIT(newtype))) {
@@ -1832,6 +1841,7 @@ iwl_legacy_mac_change_interface(struct ieee80211_hw *hw,
 	/* success */
 	iwl_legacy_teardown_interface(priv, vif, true);
 	vif->type = newtype;
+	vif->p2p = newp2p;
 	err = iwl_legacy_setup_interface(priv, ctx);
 	WARN_ON(err);
 	/*
diff --git a/drivers/net/wireless/iwlegacy/iwl-fh.h b/drivers/net/wireless/iwlegacy/iwl-fh.h
index 4e20c7e5c883..6e6091816e36 100644
--- a/drivers/net/wireless/iwlegacy/iwl-fh.h
+++ b/drivers/net/wireless/iwlegacy/iwl-fh.h
@@ -436,7 +436,7 @@
  * @finished_rb_num [0:11] - Indicates the index of the current RB
  * 	in which the last frame was written to
  * @finished_fr_num [0:11] - Indicates the index of the RX Frame
- * 	which was transfered
+ * 	which was transferred
  */
 struct iwl_rb_status {
 	__le16 closed_rb_num;
diff --git a/drivers/net/wireless/iwlegacy/iwl-scan.c b/drivers/net/wireless/iwlegacy/iwl-scan.c
index 60f597f796ca..353234a02c6d 100644
--- a/drivers/net/wireless/iwlegacy/iwl-scan.c
+++ b/drivers/net/wireless/iwlegacy/iwl-scan.c
@@ -143,7 +143,7 @@ static void iwl_legacy_do_scan_abort(struct iwl_priv *priv)
 		IWL_DEBUG_SCAN(priv, "Send scan abort failed %d\n", ret);
 		iwl_legacy_force_scan_end(priv);
 	} else
-		IWL_DEBUG_SCAN(priv, "Sucessfully send scan abort\n");
+		IWL_DEBUG_SCAN(priv, "Successfully send scan abort\n");
 }
 
 /**
diff --git a/drivers/net/wireless/iwlegacy/iwl-sta.c b/drivers/net/wireless/iwlegacy/iwl-sta.c
index 47c9da3834ea..66f0fb2bbe00 100644
--- a/drivers/net/wireless/iwlegacy/iwl-sta.c
+++ b/drivers/net/wireless/iwlegacy/iwl-sta.c
@@ -110,7 +110,7 @@ static int iwl_legacy_process_add_sta_resp(struct iwl_priv *priv,
 	/*
 	 * XXX: The MAC address in the command buffer is often changed from
 	 * the original sent to the device. That is, the MAC address
-	 * written to the command buffer often is not the same MAC adress
+	 * written to the command buffer often is not the same MAC address
 	 * read from the command buffer when the command returns. This
 	 * issue has not yet been resolved and this debugging is left to
 	 * observe the problem.
diff --git a/drivers/net/wireless/iwlegacy/iwl3945-base.c b/drivers/net/wireless/iwlegacy/iwl3945-base.c
index ab87e1b73529..28eb3d885ba1 100644
--- a/drivers/net/wireless/iwlegacy/iwl3945-base.c
+++ b/drivers/net/wireless/iwlegacy/iwl3945-base.c
@@ -93,6 +93,7 @@ MODULE_LICENSE("GPL");
 struct iwl_mod_params iwl3945_mod_params = {
 	.sw_crypto = 1,
 	.restart_fw = 1,
+	.disable_hw_scan = 1,
 	/* the rest are 0 by default */
 };
 
@@ -3960,8 +3961,7 @@ static int iwl3945_pci_probe(struct pci_dev *pdev, const struct pci_device_id *e
 	 * "the hard way", rather than using device's scan.
 	 */
 	if (iwl3945_mod_params.disable_hw_scan) {
-		dev_printk(KERN_DEBUG, &(pdev->dev),
-			"sw scan support is deprecated\n");
+		IWL_DEBUG_INFO(priv, "Disabling hw_scan\n");
 		iwl3945_hw_ops.hw_scan = NULL;
 	}
 
@@ -4280,8 +4280,7 @@ MODULE_PARM_DESC(swcrypto,
 		"using software crypto (default 1 [software])");
 module_param_named(disable_hw_scan, iwl3945_mod_params.disable_hw_scan,
 		int, S_IRUGO);
-MODULE_PARM_DESC(disable_hw_scan,
-		"disable hardware scanning (default 0) (deprecated)");
+MODULE_PARM_DESC(disable_hw_scan, "disable hardware scanning (default 1)");
 #ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
 module_param_named(debug, iwlegacy_debug_level, uint, S_IRUGO | S_IWUSR);
 MODULE_PARM_DESC(debug, "debug output mask");
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-ict.c b/drivers/net/wireless/iwlwifi/iwl-agn-ict.c
index b5cb3be0eb4b..ed0148d714de 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-ict.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-ict.c
@@ -69,7 +69,7 @@ int iwl_alloc_isr_ict(struct iwl_priv *priv)
 	if (!priv->_agn.ict_tbl_vir)
 		return -ENOMEM;
 
-	/* align table to PAGE_SIZE boundry */
+	/* align table to PAGE_SIZE boundary */
 	priv->_agn.aligned_ict_tbl_dma = ALIGN(priv->_agn.ict_tbl_dma, PAGE_SIZE);
 
 	IWL_DEBUG_ISR(priv, "ict dma addr %Lx dma aligned %Lx diff %d\n",
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-lib.c b/drivers/net/wireless/iwlwifi/iwl-agn-lib.c
index 2003c1d4295f..08ccb9496f76 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-lib.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-lib.c
@@ -2265,7 +2265,7 @@ signed long iwlagn_wait_notification(struct iwl_priv *priv,
 	int ret;
 
 	ret = wait_event_timeout(priv->_agn.notif_waitq,
-				 &wait_entry->triggered,
+				 wait_entry->triggered,
 				 timeout);
 
 	spin_lock_bh(&priv->_agn.notif_wait_lock);
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index 581dc9f10273..321b18b59135 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -3009,14 +3009,17 @@ static int iwl_mac_offchannel_tx_cancel_wait(struct ieee80211_hw *hw)
 
 	mutex_lock(&priv->mutex);
 
-	if (!priv->_agn.offchan_tx_skb)
-		return -EINVAL;
+	if (!priv->_agn.offchan_tx_skb) {
+		ret = -EINVAL;
+		goto unlock;
+	}
 
 	priv->_agn.offchan_tx_skb = NULL;
 
 	ret = iwl_scan_cancel_timeout(priv, 200);
 	if (ret)
 		ret = -EIO;
+unlock:
 	mutex_unlock(&priv->mutex);
 
 	return ret;
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index 6c30fa652e27..bafbe57c9602 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -1040,7 +1040,7 @@ int iwl_apm_init(struct iwl_priv *priv)
 	/*
 	 * Enable HAP INTA (interrupt from management bus) to
 	 * wake device's PCI Express link L1a -> L0s
-	 * NOTE:  This is no-op for 3945 (non-existant bit)
+	 * NOTE:  This is no-op for 3945 (non-existent bit)
 	 */
 	iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
 				    CSR_HW_IF_CONFIG_REG_BIT_HAP_WAKE_L1A);
diff --git a/drivers/net/wireless/iwlwifi/iwl-fh.h b/drivers/net/wireless/iwlwifi/iwl-fh.h
index 55b8370bc6d4..474009a244d4 100644
--- a/drivers/net/wireless/iwlwifi/iwl-fh.h
+++ b/drivers/net/wireless/iwlwifi/iwl-fh.h
@@ -436,7 +436,7 @@
  * @finished_rb_num [0:11] - Indicates the index of the current RB
  * 	in which the last frame was written to
  * @finished_fr_num [0:11] - Indicates the index of the RX Frame
- * 	which was transfered
+ * 	which was transferred
  */
 struct iwl_rb_status {
 	__le16 closed_rb_num;
diff --git a/drivers/net/wireless/iwlwifi/iwl-scan.c b/drivers/net/wireless/iwlwifi/iwl-scan.c
index 3a4d9e6b0421..914c77e44588 100644
--- a/drivers/net/wireless/iwlwifi/iwl-scan.c
+++ b/drivers/net/wireless/iwlwifi/iwl-scan.c
@@ -143,7 +143,7 @@ static void iwl_do_scan_abort(struct iwl_priv *priv)
 		IWL_DEBUG_SCAN(priv, "Send scan abort failed %d\n", ret);
 		iwl_force_scan_end(priv);
 	} else
-		IWL_DEBUG_SCAN(priv, "Sucessfully send scan abort\n");
+		IWL_DEBUG_SCAN(priv, "Successfully send scan abort\n");
 }
 
 /**
diff --git a/drivers/net/wireless/iwmc3200wifi/hal.c b/drivers/net/wireless/iwmc3200wifi/hal.c
index 907ac890997c..1cabcb39643f 100644
--- a/drivers/net/wireless/iwmc3200wifi/hal.c
+++ b/drivers/net/wireless/iwmc3200wifi/hal.c
@@ -57,7 +57,7 @@
  *   This is due to the fact the host talks exclusively
  *   to the UMAC and so there needs to be a special UMAC
  *   command for talking to the LMAC.
- *   This is how a wifi command is layed out:
+ *   This is how a wifi command is laid out:
  *    ------------------------
  *   | iwm_udma_out_wifi_hdr  |
  *    ------------------------
@@ -72,7 +72,7 @@
  *   Those commands are handled by the device's bootrom,
  *   and are typically sent when the UMAC and the LMAC
  *   are not yet available.
- *    *   This is how a non-wifi command is layed out:
+ *    *   This is how a non-wifi command is laid out:
  *    ---------------------------
  *   | iwm_udma_out_nonwifi_hdr  |
  *    ---------------------------
diff --git a/drivers/net/wireless/iwmc3200wifi/tx.c b/drivers/net/wireless/iwmc3200wifi/tx.c
index 3216621fc55a..be98074c0608 100644
--- a/drivers/net/wireless/iwmc3200wifi/tx.c
+++ b/drivers/net/wireless/iwmc3200wifi/tx.c
@@ -197,7 +197,7 @@ int iwm_tx_credit_alloc(struct iwm_priv *iwm, int id, int nb)
 	spin_lock(&iwm->tx_credit.lock);
 
 	if (!iwm_tx_credit_ok(iwm, id, nb)) {
-		IWM_DBG_TX(iwm, DBG, "No credit avaliable for pool[%d]\n", id);
+		IWM_DBG_TX(iwm, DBG, "No credit available for pool[%d]\n", id);
 		ret = -ENOSPC;
 		goto out;
 	}
diff --git a/drivers/net/wireless/libertas/README b/drivers/net/wireless/libertas/README
index 60fd1afe89ac..1453eec82a99 100644
--- a/drivers/net/wireless/libertas/README
+++ b/drivers/net/wireless/libertas/README
@@ -70,7 +70,7 @@ rdrf
 	These commands are used to read the MAC, BBP and RF registers from the
 	card.  These commands take one parameter that specifies the offset
 	location that is to be read.  This parameter must be specified in
-	hexadecimal (its possible to preceed preceding the number with a "0x").
+	hexadecimal (its possible to precede preceding the number with a "0x").
 
 	Path: /sys/kernel/debug/libertas_wireless/ethX/registers/
 
@@ -84,7 +84,7 @@ wrrf
 	These commands are used to write the MAC, BBP and RF registers in the
 	card.  These commands take two parameters that specify the offset
 	location and the value that is to be written. This parameters must
-	be specified in hexadecimal (its possible to preceed the number
+	be specified in hexadecimal (its possible to precede the number
 	with a "0x").
 
 	Usage:
diff --git a/drivers/net/wireless/libertas/cfg.c b/drivers/net/wireless/libertas/cfg.c
index 30ef0351bfc4..5caa2ac14d61 100644
--- a/drivers/net/wireless/libertas/cfg.c
+++ b/drivers/net/wireless/libertas/cfg.c
@@ -1350,7 +1350,7 @@ static int lbs_cfg_connect(struct wiphy *wiphy, struct net_device *dev,
 		 * we remove all keys like in the WPA/WPA2 setup,
 		 * we just don't set RSN.
 		 *
-		 * Therefore: fall-throught
+		 * Therefore: fall-through
 		 */
 	case WLAN_CIPHER_SUITE_TKIP:
 	case WLAN_CIPHER_SUITE_CCMP:
diff --git a/drivers/net/wireless/libertas/if_cs.c b/drivers/net/wireless/libertas/if_cs.c
index fc8121190d38..8712cb213f2f 100644
--- a/drivers/net/wireless/libertas/if_cs.c
+++ b/drivers/net/wireless/libertas/if_cs.c
@@ -913,7 +913,7 @@ static int if_cs_probe(struct pcmcia_device *p_dev)
 		goto out3;
 	}
 
-	/* Clear any interrupt cause that happend while sending
+	/* Clear any interrupt cause that happened while sending
 	 * firmware/initializing card */
 	if_cs_write16(card, IF_CS_CARD_INT_CAUSE, IF_CS_BIT_MASK);
 	if_cs_enable_ints(card);
diff --git a/drivers/net/wireless/libertas/if_spi.h b/drivers/net/wireless/libertas/if_spi.h
index 8b1417d3b71b..d2ac1dcd7e2e 100644
--- a/drivers/net/wireless/libertas/if_spi.h
+++ b/drivers/net/wireless/libertas/if_spi.h
@@ -66,7 +66,7 @@
 #define IF_SPI_HOST_INT_CTRL_REG 0x40	/* Host interrupt controller reg */
 
 #define IF_SPI_CARD_INT_CAUSE_REG 0x44	/* Card interrupt cause reg */
-#define IF_SPI_CARD_INT_STATUS_REG 0x48 /* Card interupt status reg */
+#define IF_SPI_CARD_INT_STATUS_REG 0x48 /* Card interrupt status reg */
 #define IF_SPI_CARD_INT_EVENT_MASK_REG 0x4C /* Card interrupt event mask */
 #define IF_SPI_CARD_INT_STATUS_MASK_REG	0x50 /* Card interrupt status mask */
 
diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
index 56f439d58013..f4f4257a9d67 100644
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -62,7 +62,7 @@ MODULE_PARM_DESC(fake_hw_scan, "Install fake (no-op) hw-scan handler");
  * 	an intersection to occur but each device will still use their
  * 	respective regulatory requested domains. Subsequent radios will
  * 	use the resulting intersection.
- * @HWSIM_REGTEST_WORLD_ROAM: Used for testing the world roaming. We acomplish
+ * @HWSIM_REGTEST_WORLD_ROAM: Used for testing the world roaming. We accomplish
  *	this by using a custom beacon-capable regulatory domain for the first
  *	radio. All other device world roam.
  * @HWSIM_REGTEST_CUSTOM_WORLD: Used for testing the custom world regulatory
diff --git a/drivers/net/wireless/orinoco/cfg.c b/drivers/net/wireless/orinoco/cfg.c
index 09fae2f0ea08..736bbb9bd1d0 100644
--- a/drivers/net/wireless/orinoco/cfg.c
+++ b/drivers/net/wireless/orinoco/cfg.c
@@ -153,6 +153,9 @@ static int orinoco_scan(struct wiphy *wiphy, struct net_device *dev,
 	priv->scan_request = request;
 
 	err = orinoco_hw_trigger_scan(priv, request->ssids);
+	/* On error the we aren't processing the request */
+	if (err)
+		priv->scan_request = NULL;
 
 	return err;
 }
diff --git a/drivers/net/wireless/orinoco/hw.c b/drivers/net/wireless/orinoco/hw.c
index b4772c1c6135..3c7877a7c31c 100644
--- a/drivers/net/wireless/orinoco/hw.c
+++ b/drivers/net/wireless/orinoco/hw.c
@@ -1031,7 +1031,7 @@ int __orinoco_hw_set_tkip_key(struct orinoco_private *priv, int key_idx,
 	else
 		buf.tsc[4] = 0x10;
 
-	/* Wait upto 100ms for tx queue to empty */
+	/* Wait up to 100ms for tx queue to empty */
 	for (k = 100; k > 0; k--) {
 		udelay(1000);
 		ret = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_TXQUEUEEMPTY,
diff --git a/drivers/net/wireless/orinoco/main.c b/drivers/net/wireless/orinoco/main.c
index f3d396e7544b..62c6b2b37dbe 100644
--- a/drivers/net/wireless/orinoco/main.c
+++ b/drivers/net/wireless/orinoco/main.c
@@ -1376,13 +1376,13 @@ static void orinoco_process_scan_results(struct work_struct *work)
 
 	spin_lock_irqsave(&priv->scan_lock, flags);
 	list_for_each_entry_safe(sd, temp, &priv->scan_list, list) {
-		spin_unlock_irqrestore(&priv->scan_lock, flags);
 
 		buf = sd->buf;
 		len = sd->len;
 		type = sd->type;
 
 		list_del(&sd->list);
+		spin_unlock_irqrestore(&priv->scan_lock, flags);
 		kfree(sd);
 
 		if (len > 0) {
diff --git a/drivers/net/wireless/p54/main.c b/drivers/net/wireless/p54/main.c
index 356e6bb443a6..a946991989c6 100644
--- a/drivers/net/wireless/p54/main.c
+++ b/drivers/net/wireless/p54/main.c
@@ -465,7 +465,7 @@ static int p54_set_key(struct ieee80211_hw *dev, enum set_key_cmd cmd,
 
 		if (slot < 0) {
 			/*
-			 * The device supports the choosen algorithm, but the
+			 * The device supports the chosen algorithm, but the
 			 * firmware does not provide enough key slots to store
 			 * all of them.
 			 * But encryption offload for outgoing frames is always
diff --git a/drivers/net/wireless/p54/p54spi.c b/drivers/net/wireless/p54/p54spi.c
index 18d24b7b1e34..6d9204fef90b 100644
--- a/drivers/net/wireless/p54/p54spi.c
+++ b/drivers/net/wireless/p54/p54spi.c
@@ -287,7 +287,7 @@ static void p54spi_power_on(struct p54s_priv *priv)
 	enable_irq(gpio_to_irq(p54spi_gpio_irq));
 
 	/*
-	 * need to wait a while before device can be accessed, the lenght
+	 * need to wait a while before device can be accessed, the length
 	 * is just a guess
 	 */
 	msleep(10);
@@ -649,8 +649,7 @@ static int __devinit p54spi_probe(struct spi_device *spi)
 		goto err_free_common;
 	}
 
-	set_irq_type(gpio_to_irq(p54spi_gpio_irq),
-		     IRQ_TYPE_EDGE_RISING);
+	irq_set_irq_type(gpio_to_irq(p54spi_gpio_irq), IRQ_TYPE_EDGE_RISING);
 
 	disable_irq(gpio_to_irq(p54spi_gpio_irq));
 
diff --git a/drivers/net/wireless/prism54/islpci_eth.c b/drivers/net/wireless/prism54/islpci_eth.c
index d44f8e20cce0..266d45bf86f5 100644
--- a/drivers/net/wireless/prism54/islpci_eth.c
+++ b/drivers/net/wireless/prism54/islpci_eth.c
@@ -113,7 +113,7 @@ islpci_eth_transmit(struct sk_buff *skb, struct net_device *ndev)
 	 * be aligned on a 4-byte boundary. If WDS is enabled add another 6 bytes
 	 * and add WDS address information */
 	if (likely(((long) skb->data & 0x03) | init_wds)) {
-		/* get the number of bytes to add and re-allign */
+		/* get the number of bytes to add and re-align */
 		offset = (4 - (long) skb->data) & 0x03;
 		offset += init_wds ? 6 : 0;
 
@@ -342,7 +342,7 @@ islpci_eth_receive(islpci_private *priv)
 			 priv->pci_map_rx_address[index],
 			 MAX_FRAGMENT_SIZE_RX + 2, PCI_DMA_FROMDEVICE);
 
-	/* update the skb structure and allign the buffer */
+	/* update the skb structure and align the buffer */
 	skb_put(skb, size);
 	if (offset) {
 		/* shift the buffer allocation offset bytes to get the right frame */
diff --git a/drivers/net/wireless/rayctl.h b/drivers/net/wireless/rayctl.h
index 49d9b267bc0f..d7646f299bd3 100644
--- a/drivers/net/wireless/rayctl.h
+++ b/drivers/net/wireless/rayctl.h
@@ -578,7 +578,7 @@ struct tx_msg {
     UCHAR  var[1];
 };
 
-/****** ECF Receive Control Stucture (RCS) Area at Shared RAM offset 0x0800  */
+/****** ECF Receive Control Structure (RCS) Area at Shared RAM offset 0x0800  */
 /* Structures for command specific parameters (rcs.var) */
 struct rx_packet_cmd {
     UCHAR rx_data_ptr[2];
diff --git a/drivers/net/wireless/rt2x00/rt2800.h b/drivers/net/wireless/rt2x00/rt2800.h
index 70b9abbdeb9e..8fbc5fa965e0 100644
--- a/drivers/net/wireless/rt2x00/rt2800.h
+++ b/drivers/net/wireless/rt2x00/rt2800.h
@@ -616,7 +616,7 @@
  * READ_CONTROL: 0 write BBP, 1 read BBP
  * BUSY: ASIC is busy executing BBP commands
  * BBP_PAR_DUR: 0 4 MAC clocks, 1 8 MAC clocks
- * BBP_RW_MODE: 0 serial, 1 paralell
+ * BBP_RW_MODE: 0 serial, 1 parallel
  */
 #define BBP_CSR_CFG			0x101c
 #define BBP_CSR_CFG_VALUE		FIELD32(0x000000ff)
diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index 2ee6cebb9b25..dbf74d07d947 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -1518,7 +1518,7 @@ static void rt2800_config_channel_rf2xxx(struct rt2x00_dev *rt2x00dev,
 	if (rf->channel > 14) {
 		/*
 		 * When TX power is below 0, we should increase it by 7 to
-		 * make it a positive value (Minumum value is -7).
+		 * make it a positive value (Minimum value is -7).
 		 * However this means that values between 0 and 7 have
 		 * double meaning, and we should set a 7DBm boost flag.
 		 */
diff --git a/drivers/net/wireless/rt2x00/rt2800usb.c b/drivers/net/wireless/rt2x00/rt2800usb.c
index f1a92144996f..37509d019910 100644
--- a/drivers/net/wireless/rt2x00/rt2800usb.c
+++ b/drivers/net/wireless/rt2x00/rt2800usb.c
@@ -719,6 +719,7 @@ static struct usb_device_id rt2800usb_device_table[] = {
 	{ USB_DEVICE(0x0b05, 0x1732), USB_DEVICE_DATA(&rt2800usb_ops) },
 	{ USB_DEVICE(0x0b05, 0x1742), USB_DEVICE_DATA(&rt2800usb_ops) },
 	{ USB_DEVICE(0x0b05, 0x1784), USB_DEVICE_DATA(&rt2800usb_ops) },
+	{ USB_DEVICE(0x1761, 0x0b05), USB_DEVICE_DATA(&rt2800usb_ops) },
 	/* AzureWave */
 	{ USB_DEVICE(0x13d3, 0x3247), USB_DEVICE_DATA(&rt2800usb_ops) },
 	{ USB_DEVICE(0x13d3, 0x3273), USB_DEVICE_DATA(&rt2800usb_ops) },
@@ -729,8 +730,12 @@ static struct usb_device_id rt2800usb_device_table[] = {
 	{ USB_DEVICE(0x050d, 0x8053), USB_DEVICE_DATA(&rt2800usb_ops) },
 	{ USB_DEVICE(0x050d, 0x805c), USB_DEVICE_DATA(&rt2800usb_ops) },
 	{ USB_DEVICE(0x050d, 0x815c), USB_DEVICE_DATA(&rt2800usb_ops) },
+	{ USB_DEVICE(0x050d, 0x825b), USB_DEVICE_DATA(&rt2800usb_ops) },
+	{ USB_DEVICE(0x050d, 0x935a), USB_DEVICE_DATA(&rt2800usb_ops) },
+	{ USB_DEVICE(0x050d, 0x935b), USB_DEVICE_DATA(&rt2800usb_ops) },
 	/* Buffalo */
 	{ USB_DEVICE(0x0411, 0x00e8), USB_DEVICE_DATA(&rt2800usb_ops) },
+	{ USB_DEVICE(0x0411, 0x016f), USB_DEVICE_DATA(&rt2800usb_ops) },
 	/* Conceptronic */
 	{ USB_DEVICE(0x14b2, 0x3c06), USB_DEVICE_DATA(&rt2800usb_ops) },
 	{ USB_DEVICE(0x14b2, 0x3c07), USB_DEVICE_DATA(&rt2800usb_ops) },
@@ -817,6 +822,7 @@ static struct usb_device_id rt2800usb_device_table[] = {
 	/* Pegatron */
 	{ USB_DEVICE(0x1d4d, 0x000c), USB_DEVICE_DATA(&rt2800usb_ops) },
 	{ USB_DEVICE(0x1d4d, 0x000e), USB_DEVICE_DATA(&rt2800usb_ops) },
+	{ USB_DEVICE(0x1d4d, 0x0011), USB_DEVICE_DATA(&rt2800usb_ops) },
 	/* Philips */
 	{ USB_DEVICE(0x0471, 0x200f), USB_DEVICE_DATA(&rt2800usb_ops) },
 	/* Planex */
@@ -898,6 +904,8 @@ static struct usb_device_id rt2800usb_device_table[] = {
 	{ USB_DEVICE(0x148f, 0x3572), USB_DEVICE_DATA(&rt2800usb_ops) },
 	/* Sitecom */
 	{ USB_DEVICE(0x0df6, 0x0041), USB_DEVICE_DATA(&rt2800usb_ops) },
+	/* Toshiba */
+	{ USB_DEVICE(0x0930, 0x0a07), USB_DEVICE_DATA(&rt2800usb_ops) },
 	/* Zinwell */
 	{ USB_DEVICE(0x5a57, 0x0284), USB_DEVICE_DATA(&rt2800usb_ops) },
 #endif
@@ -913,7 +921,6 @@ static struct usb_device_id rt2800usb_device_table[] = {
 	{ USB_DEVICE(0x0b05, 0x1760), USB_DEVICE_DATA(&rt2800usb_ops) },
 	{ USB_DEVICE(0x0b05, 0x1761), USB_DEVICE_DATA(&rt2800usb_ops) },
 	{ USB_DEVICE(0x0b05, 0x1790), USB_DEVICE_DATA(&rt2800usb_ops) },
-	{ USB_DEVICE(0x1761, 0x0b05), USB_DEVICE_DATA(&rt2800usb_ops) },
 	/* AzureWave */
 	{ USB_DEVICE(0x13d3, 0x3262), USB_DEVICE_DATA(&rt2800usb_ops) },
 	{ USB_DEVICE(0x13d3, 0x3284), USB_DEVICE_DATA(&rt2800usb_ops) },
@@ -937,6 +944,8 @@ static struct usb_device_id rt2800usb_device_table[] = {
 	{ USB_DEVICE(0x07d1, 0x3c13), USB_DEVICE_DATA(&rt2800usb_ops) },
 	{ USB_DEVICE(0x07d1, 0x3c15), USB_DEVICE_DATA(&rt2800usb_ops) },
 	{ USB_DEVICE(0x07d1, 0x3c17), USB_DEVICE_DATA(&rt2800usb_ops) },
+	/* Edimax */
+	{ USB_DEVICE(0x7392, 0x4085), USB_DEVICE_DATA(&rt2800usb_ops) },
 	/* Encore */
 	{ USB_DEVICE(0x203d, 0x14a1), USB_DEVICE_DATA(&rt2800usb_ops) },
 	/* Gemtek */
@@ -959,8 +968,8 @@ static struct usb_device_id rt2800usb_device_table[] = {
 	{ USB_DEVICE(0x05a6, 0x0101), USB_DEVICE_DATA(&rt2800usb_ops) },
 	{ USB_DEVICE(0x1d4d, 0x0002), USB_DEVICE_DATA(&rt2800usb_ops) },
 	{ USB_DEVICE(0x1d4d, 0x0010), USB_DEVICE_DATA(&rt2800usb_ops) },
-	{ USB_DEVICE(0x1d4d, 0x0011), USB_DEVICE_DATA(&rt2800usb_ops) },
 	/* Planex */
+	{ USB_DEVICE(0x2019, 0x5201), USB_DEVICE_DATA(&rt2800usb_ops) },
 	{ USB_DEVICE(0x2019, 0xab24), USB_DEVICE_DATA(&rt2800usb_ops) },
 	/* Qcom */
 	{ USB_DEVICE(0x18e8, 0x6259), USB_DEVICE_DATA(&rt2800usb_ops) },
diff --git a/drivers/net/wireless/rt2x00/rt2x00.h b/drivers/net/wireless/rt2x00/rt2x00.h
index a3940d7300a4..7f10239f56a8 100644
--- a/drivers/net/wireless/rt2x00/rt2x00.h
+++ b/drivers/net/wireless/rt2x00/rt2x00.h
@@ -484,13 +484,13 @@ struct rt2x00intf_conf {
 	enum nl80211_iftype type;
 
 	/*
-	 * TSF sync value, this is dependant on the operation type.
+	 * TSF sync value, this is dependent on the operation type.
 	 */
 	enum tsf_sync sync;
 
 	/*
-	 * The MAC and BSSID addressess are simple array of bytes,
-	 * these arrays are little endian, so when sending the addressess
+	 * The MAC and BSSID addresses are simple array of bytes,
+	 * these arrays are little endian, so when sending the addresses
 	 * to the drivers, copy the it into a endian-signed variable.
 	 *
 	 * Note that all devices (except rt2500usb) have 32 bits
@@ -1131,7 +1131,7 @@ void rt2x00queue_stop_queue(struct data_queue *queue);
  * @drop: True to drop all pending frames.
  *
  * This function will flush the queue. After this call
- * the queue is guarenteed to be empty.
+ * the queue is guaranteed to be empty.
  */
 void rt2x00queue_flush_queue(struct data_queue *queue, bool drop);
 
diff --git a/drivers/net/wireless/rt2x00/rt2x00config.c b/drivers/net/wireless/rt2x00/rt2x00config.c
index e7f67d5eda52..9416e36de29e 100644
--- a/drivers/net/wireless/rt2x00/rt2x00config.c
+++ b/drivers/net/wireless/rt2x00/rt2x00config.c
@@ -60,7 +60,7 @@ void rt2x00lib_config_intf(struct rt2x00_dev *rt2x00dev,
 	 * Note that when NULL is passed as address we will send
 	 * 00:00:00:00:00 to the device to clear the address.
 	 * This will prevent the device being confused when it wants
-	 * to ACK frames or consideres itself associated.
+	 * to ACK frames or considers itself associated.
 	 */
 	memset(conf.mac, 0, sizeof(conf.mac));
 	if (mac)
diff --git a/drivers/net/wireless/rt2x00/rt2x00crypto.c b/drivers/net/wireless/rt2x00/rt2x00crypto.c
index 5e9074bf2b8e..3f5688fbf3f7 100644
--- a/drivers/net/wireless/rt2x00/rt2x00crypto.c
+++ b/drivers/net/wireless/rt2x00/rt2x00crypto.c
@@ -237,7 +237,7 @@ void rt2x00crypto_rx_insert_iv(struct sk_buff *skb,
 	}
 
 	/*
-	 * NOTE: Always count the payload as transfered,
+	 * NOTE: Always count the payload as transferred,
 	 * even when alignment was set to zero. This is required
 	 * for determining the correct offset for the ICV data.
 	 */
diff --git a/drivers/net/wireless/rt2x00/rt2x00dump.h b/drivers/net/wireless/rt2x00/rt2x00dump.h
index 5d6e0b83151f..063ebcce97f8 100644
--- a/drivers/net/wireless/rt2x00/rt2x00dump.h
+++ b/drivers/net/wireless/rt2x00/rt2x00dump.h
@@ -51,7 +51,7 @@
  *   [rt2x00dump header][hardware descriptor][ieee802.11 frame]
  *
  * rt2x00dump header: The description of the dumped frame, as well as
- *	additional information usefull for debugging. See &rt2x00dump_hdr.
+ *	additional information useful for debugging. See &rt2x00dump_hdr.
  * hardware descriptor: Descriptor that was used to receive or transmit
  *	the frame.
  * ieee802.11 frame: The actual frame that was received or transmitted.
diff --git a/drivers/net/wireless/rt2x00/rt2x00link.c b/drivers/net/wireless/rt2x00/rt2x00link.c
index c975b0a12e95..29abfdeb0b65 100644
--- a/drivers/net/wireless/rt2x00/rt2x00link.c
+++ b/drivers/net/wireless/rt2x00/rt2x00link.c
@@ -283,7 +283,7 @@ void rt2x00link_start_tuner(struct rt2x00_dev *rt2x00dev)
 	/**
 	 * While scanning, link tuning is disabled. By default
 	 * the most sensitive settings will be used to make sure
-	 * that all beacons and probe responses will be recieved
+	 * that all beacons and probe responses will be received
 	 * during the scan.
 	 */
 	if (test_bit(DEVICE_STATE_SCANNING, &rt2x00dev->flags))
diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.c b/drivers/net/wireless/rt2x00/rt2x00queue.c
index 4b3c70eeef1f..4358051bfe1a 100644
--- a/drivers/net/wireless/rt2x00/rt2x00queue.c
+++ b/drivers/net/wireless/rt2x00/rt2x00queue.c
@@ -546,7 +546,7 @@ int rt2x00queue_write_tx_frame(struct data_queue *queue, struct sk_buff *skb,
 	}
 
 	/*
-	 * When DMA allocation is required we should guarentee to the
+	 * When DMA allocation is required we should guarantee to the
 	 * driver that the DMA is aligned to a 4-byte boundary.
 	 * However some drivers require L2 padding to pad the payload
 	 * rather then the header. This could be a requirement for
@@ -689,7 +689,7 @@ void rt2x00queue_for_each_entry(struct data_queue *queue,
 	spin_unlock_irqrestore(&queue->index_lock, irqflags);
 
 	/*
-	 * Start from the TX done pointer, this guarentees that we will
+	 * Start from the TX done pointer, this guarantees that we will
 	 * send out all frames in the correct order.
 	 */
 	if (index_start < index_end) {
@@ -883,7 +883,7 @@ void rt2x00queue_flush_queue(struct data_queue *queue, bool drop)
 	}
 
 	/*
-	 * Check if driver supports flushing, we can only guarentee
+	 * Check if driver supports flushing, we can only guarantee
 	 * full support for flushing if the driver is able
 	 * to cancel all pending frames (drop = true).
 	 */
diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.h b/drivers/net/wireless/rt2x00/rt2x00queue.h
index 0c8b0c699679..217861f8d95f 100644
--- a/drivers/net/wireless/rt2x00/rt2x00queue.h
+++ b/drivers/net/wireless/rt2x00/rt2x00queue.h
@@ -344,8 +344,8 @@ struct txentry_desc {
  *	only be touched after the device has signaled it is done with it.
  * @ENTRY_DATA_PENDING: This entry contains a valid frame and is waiting
  *	for the signal to start sending.
- * @ENTRY_DATA_IO_FAILED: Hardware indicated that an IO error occured
- *	while transfering the data to the hardware. No TX status report will
+ * @ENTRY_DATA_IO_FAILED: Hardware indicated that an IO error occurred
+ *	while transferring the data to the hardware. No TX status report will
  *	be expected from the hardware.
  * @ENTRY_DATA_STATUS_PENDING: The entry has been send to the device and
  *	returned. It is now waiting for the status reporting before the
@@ -365,7 +365,7 @@ enum queue_entry_flags {
  * @flags: Entry flags, see &enum queue_entry_flags.
  * @queue: The data queue (&struct data_queue) to which this entry belongs.
  * @skb: The buffer which is currently being transmitted (for TX queue),
- *	or used to directly recieve data in (for RX queue).
+ *	or used to directly receive data in (for RX queue).
  * @entry_idx: The entry index number.
  * @priv_data: Private data belonging to this queue entry. The pointer
  *	points to data specific to a particular driver and queue type.
@@ -388,7 +388,7 @@ struct queue_entry {
  * @Q_INDEX: Index pointer to the current entry in the queue, if this entry is
  *	owned by the hardware then the queue is considered to be full.
  * @Q_INDEX_DMA_DONE: Index pointer for the next entry which will have been
- *	transfered to the hardware.
+ *	transferred to the hardware.
  * @Q_INDEX_DONE: Index pointer to the next entry which will be completed by
  *	the hardware and for which we need to run the txdone handler. If this
  *	entry is not owned by the hardware the queue is considered to be empty.
@@ -627,7 +627,7 @@ static inline int rt2x00queue_threshold(struct data_queue *queue)
 }
 
 /**
- * rt2x00queue_status_timeout - Check if a timeout occured for STATUS reports
+ * rt2x00queue_status_timeout - Check if a timeout occurred for STATUS reports
  * @queue: Queue to check.
  */
 static inline int rt2x00queue_status_timeout(struct data_queue *queue)
@@ -637,7 +637,7 @@ static inline int rt2x00queue_status_timeout(struct data_queue *queue)
 }
 
 /**
- * rt2x00queue_timeout - Check if a timeout occured for DMA transfers
+ * rt2x00queue_timeout - Check if a timeout occurred for DMA transfers
  * @queue: Queue to check.
  */
 static inline int rt2x00queue_dma_timeout(struct data_queue *queue)
diff --git a/drivers/net/wireless/rt2x00/rt2x00usb.c b/drivers/net/wireless/rt2x00/rt2x00usb.c
index fbe735f5b352..36f388f97d65 100644
--- a/drivers/net/wireless/rt2x00/rt2x00usb.c
+++ b/drivers/net/wireless/rt2x00/rt2x00usb.c
@@ -173,7 +173,7 @@ static void rt2x00usb_work_txdone_entry(struct queue_entry *entry)
 	/*
 	 * If the transfer to hardware succeeded, it does not mean the
 	 * frame was send out correctly. It only means the frame
-	 * was succesfully pushed to the hardware, we have no
+	 * was successfully pushed to the hardware, we have no
 	 * way to determine the transmission status right now.
 	 * (Only indirectly by looking at the failed TX counters
 	 * in the register).
diff --git a/drivers/net/wireless/rt2x00/rt2x00usb.h b/drivers/net/wireless/rt2x00/rt2x00usb.h
index 6aaf51fc7ad8..e11c759ac9ed 100644
--- a/drivers/net/wireless/rt2x00/rt2x00usb.h
+++ b/drivers/net/wireless/rt2x00/rt2x00usb.h
@@ -400,7 +400,7 @@ void rt2x00usb_flush_queue(struct data_queue *queue);
  * @rt2x00dev: Pointer to &struct rt2x00_dev
  *
  * Check the health of the USB communication and determine
- * if timeouts have occured. If this is the case, this function
+ * if timeouts have occurred. If this is the case, this function
  * will reset all communication to restore functionality again.
  */
 void rt2x00usb_watchdog(struct rt2x00_dev *rt2x00dev);
diff --git a/drivers/net/wireless/rtlwifi/base.c b/drivers/net/wireless/rtlwifi/base.c
index bb0c781f4a1b..0d7d93e1d398 100644
--- a/drivers/net/wireless/rtlwifi/base.c
+++ b/drivers/net/wireless/rtlwifi/base.c
@@ -520,7 +520,7 @@ void rtl_get_tcb_desc(struct ieee80211_hw *hw,
 			 *because hw will nerver use hw_rate
 			 *when tcb_desc->use_driver_rate = false
 			 *so we never set highest N rate here,
-			 *and N rate will all be controled by FW
+			 *and N rate will all be controlled by FW
 			 *when tcb_desc->use_driver_rate = false
 			 */
 			if (rtlmac->ht_enable) {
diff --git a/drivers/net/wireless/rtlwifi/efuse.c b/drivers/net/wireless/rtlwifi/efuse.c
index 4f92cba6810a..f74a8701c67d 100644
--- a/drivers/net/wireless/rtlwifi/efuse.c
+++ b/drivers/net/wireless/rtlwifi/efuse.c
@@ -410,8 +410,8 @@ bool efuse_shadow_update(struct ieee80211_hw *hw)
 
 	if (!efuse_shadow_update_chk(hw)) {
 		efuse_read_all_map(hw, &rtlefuse->efuse_map[EFUSE_INIT_MAP][0]);
-		memcpy((void *)&rtlefuse->efuse_map[EFUSE_MODIFY_MAP][0],
-		       (void *)&rtlefuse->efuse_map[EFUSE_INIT_MAP][0],
+		memcpy(&rtlefuse->efuse_map[EFUSE_MODIFY_MAP][0],
+		       &rtlefuse->efuse_map[EFUSE_INIT_MAP][0],
 		       rtlpriv->cfg->maps[EFUSE_HWSET_MAX_SIZE]);
 
 		RT_TRACE(rtlpriv, COMP_EFUSE, DBG_LOUD,
@@ -446,9 +446,9 @@ bool efuse_shadow_update(struct ieee80211_hw *hw)
 
 		if (word_en != 0x0F) {
 			u8 tmpdata[8];
-			memcpy((void *)tmpdata,
-			       (void *)(&rtlefuse->
-					efuse_map[EFUSE_MODIFY_MAP][base]), 8);
+			memcpy(tmpdata,
+			       &rtlefuse->efuse_map[EFUSE_MODIFY_MAP][base],
+			       8);
 			RT_PRINT_DATA(rtlpriv, COMP_INIT, DBG_LOUD,
 				      ("U-efuse\n"), tmpdata, 8);
 
@@ -465,8 +465,8 @@ bool efuse_shadow_update(struct ieee80211_hw *hw)
 	efuse_power_switch(hw, true, false);
 	efuse_read_all_map(hw, &rtlefuse->efuse_map[EFUSE_INIT_MAP][0]);
 
-	memcpy((void *)&rtlefuse->efuse_map[EFUSE_MODIFY_MAP][0],
-	       (void *)&rtlefuse->efuse_map[EFUSE_INIT_MAP][0],
+	memcpy(&rtlefuse->efuse_map[EFUSE_MODIFY_MAP][0],
+	       &rtlefuse->efuse_map[EFUSE_INIT_MAP][0],
 	       rtlpriv->cfg->maps[EFUSE_HWSET_MAX_SIZE]);
 
 	RT_TRACE(rtlpriv, COMP_EFUSE, DBG_LOUD, ("<---\n"));
@@ -479,13 +479,12 @@ void rtl_efuse_shadow_map_update(struct ieee80211_hw *hw)
 	struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 
 	if (rtlefuse->autoload_failflag == true) {
-		memset((void *)(&rtlefuse->efuse_map[EFUSE_INIT_MAP][0]), 128,
-		       0xFF);
+		memset(&rtlefuse->efuse_map[EFUSE_INIT_MAP][0], 0xFF, 128);
 	} else
 		efuse_read_all_map(hw, &rtlefuse->efuse_map[EFUSE_INIT_MAP][0]);
 
-	memcpy((void *)&rtlefuse->efuse_map[EFUSE_MODIFY_MAP][0],
-	       (void *)&rtlefuse->efuse_map[EFUSE_INIT_MAP][0],
+	memcpy(&rtlefuse->efuse_map[EFUSE_MODIFY_MAP][0],
+	       &rtlefuse->efuse_map[EFUSE_INIT_MAP][0],
 	       rtlpriv->cfg->maps[EFUSE_HWSET_MAX_SIZE]);
 
 }
@@ -694,8 +693,8 @@ static int efuse_pg_packet_read(struct ieee80211_hw *hw, u8 offset, u8 *data)
 	if (offset > 15)
 		return false;
 
-	memset((void *)data, PGPKT_DATA_SIZE * sizeof(u8), 0xff);
-	memset((void *)tmpdata, PGPKT_DATA_SIZE * sizeof(u8), 0xff);
+	memset(data, 0xff, PGPKT_DATA_SIZE * sizeof(u8));
+	memset(tmpdata, 0xff, PGPKT_DATA_SIZE * sizeof(u8));
 
 	while (bcontinual && (efuse_addr < EFUSE_MAX_SIZE)) {
 		if (readstate & PG_STATE_HEADER) {
@@ -862,7 +861,7 @@ static void efuse_write_data_case2(struct ieee80211_hw *hw, u16 *efuse_addr,
 
 		tmp_word_cnts = efuse_calculate_word_cnts(tmp_pkt.word_en);
 
-		memset((void *)originaldata, 8 * sizeof(u8), 0xff);
+		memset(originaldata, 0xff, 8 * sizeof(u8));
 
 		if (efuse_pg_packet_read(hw, tmp_pkt.offset, originaldata)) {
 			badworden = efuse_word_enable_data_write(hw,
@@ -917,7 +916,7 @@ static int efuse_pg_packet_write(struct ieee80211_hw *hw,
 	target_pkt.offset = offset;
 	target_pkt.word_en = word_en;
 
-	memset((void *)target_pkt.data, 8 * sizeof(u8), 0xFF);
+	memset(target_pkt.data, 0xFF, 8 * sizeof(u8));
 
 	efuse_word_enable_data_read(word_en, data, target_pkt.data);
 	target_word_cnts = efuse_calculate_word_cnts(target_pkt.word_en);
@@ -1022,7 +1021,7 @@ static u8 efuse_word_enable_data_write(struct ieee80211_hw *hw,
 	u8 badworden = 0x0F;
 	u8 tmpdata[8];
 
-	memset((void *)tmpdata, PGPKT_DATA_SIZE, 0xff);
+	memset(tmpdata, 0xff, PGPKT_DATA_SIZE);
 	RT_TRACE(rtlpriv, COMP_EFUSE, DBG_LOUD,
 		 ("word_en = %x efuse_addr=%x\n", word_en, efuse_addr));
 
diff --git a/drivers/net/wireless/rtlwifi/pci.c b/drivers/net/wireless/rtlwifi/pci.c
index 9cd7703c2a30..5938f6ee21e4 100644
--- a/drivers/net/wireless/rtlwifi/pci.c
+++ b/drivers/net/wireless/rtlwifi/pci.c
@@ -395,7 +395,7 @@ static void rtl_pci_init_aspm(struct ieee80211_hw *hw)
 	 * 0 - Disable ASPM,
 	 * 1 - Enable ASPM without Clock Req,
 	 * 2 - Enable ASPM with Clock Req,
-	 * 3 - Alwyas Enable ASPM with Clock Req,
+	 * 3 - Always Enable ASPM with Clock Req,
 	 * 4 - Always Enable ASPM without Clock Req.
 	 * set defult to RTL8192CE:3 RTL8192E:2
 	 * */
diff --git a/drivers/net/wireless/rtlwifi/regd.c b/drivers/net/wireless/rtlwifi/regd.c
index 3336ca999dfd..d26f957981ad 100644
--- a/drivers/net/wireless/rtlwifi/regd.c
+++ b/drivers/net/wireless/rtlwifi/regd.c
@@ -179,7 +179,7 @@ static void _rtl_reg_apply_active_scan_flags(struct wiphy *wiphy,
 	}
 
 	/*
-	 *If a country IE has been recieved check its rule for this
+	 *If a country IE has been received check its rule for this
 	 *channel first before enabling active scan. The passive scan
 	 *would have been enforced by the initial processing of our
 	 *custom regulatory domain.
diff --git a/drivers/net/wireless/rtlwifi/wifi.h b/drivers/net/wireless/rtlwifi/wifi.h
index 01226f8e70f9..07db95ff9bc5 100644
--- a/drivers/net/wireless/rtlwifi/wifi.h
+++ b/drivers/net/wireless/rtlwifi/wifi.h
@@ -1555,7 +1555,7 @@ struct rtl_priv {
 
 
 /***************************************
-    Bluetooth Co-existance Related
+    Bluetooth Co-existence Related
 ****************************************/
 
 enum bt_ant_num {
diff --git a/drivers/net/wireless/wl1251/cmd.c b/drivers/net/wireless/wl1251/cmd.c
index 0ade4bd617c0..81f164bc4888 100644
--- a/drivers/net/wireless/wl1251/cmd.c
+++ b/drivers/net/wireless/wl1251/cmd.c
@@ -104,7 +104,7 @@ int wl1251_cmd_test(struct wl1251 *wl, void *buf, size_t buf_len, u8 answer)
  * @wl: wl struct
  * @id: acx id
  * @buf: buffer for the response, including all headers, must work with dma
- * @len: lenght of buf
+ * @len: length of buf
  */
 int wl1251_cmd_interrogate(struct wl1251 *wl, u16 id, void *buf, size_t len)
 {
diff --git a/drivers/net/wireless/wl1251/rx.c b/drivers/net/wireless/wl1251/rx.c
index c1b3b3f03da2..6af35265c900 100644
--- a/drivers/net/wireless/wl1251/rx.c
+++ b/drivers/net/wireless/wl1251/rx.c
@@ -179,7 +179,7 @@ static void wl1251_rx_body(struct wl1251 *wl,
 	rx_buffer = skb_put(skb, length);
 	wl1251_mem_read(wl, rx_packet_ring_addr, rx_buffer, length);
 
-	/* The actual lenght doesn't include the target's alignment */
+	/* The actual length doesn't include the target's alignment */
 	skb->len = desc->length  - PLCP_HEADER_LENGTH;
 
 	fc = (u16 *)skb->data;
diff --git a/drivers/net/wireless/wl1251/sdio.c b/drivers/net/wireless/wl1251/sdio.c
index d550b5e68d3c..f51a0241a440 100644
--- a/drivers/net/wireless/wl1251/sdio.c
+++ b/drivers/net/wireless/wl1251/sdio.c
@@ -265,7 +265,7 @@ static int wl1251_sdio_probe(struct sdio_func *func,
 			goto disable;
 		}
 
-		set_irq_type(wl->irq, IRQ_TYPE_EDGE_RISING);
+		irq_set_irq_type(wl->irq, IRQ_TYPE_EDGE_RISING);
 		disable_irq(wl->irq);
 
 		wl1251_sdio_ops.enable_irq = wl1251_enable_line_irq;
diff --git a/drivers/net/wireless/wl1251/spi.c b/drivers/net/wireless/wl1251/spi.c
index ac872b38960f..af6448c4d3e2 100644
--- a/drivers/net/wireless/wl1251/spi.c
+++ b/drivers/net/wireless/wl1251/spi.c
@@ -286,7 +286,7 @@ static int __devinit wl1251_spi_probe(struct spi_device *spi)
 		goto out_free;
 	}
 
-	set_irq_type(wl->irq, IRQ_TYPE_EDGE_RISING);
+	irq_set_irq_type(wl->irq, IRQ_TYPE_EDGE_RISING);
 
 	disable_irq(wl->irq);
 
diff --git a/drivers/net/wireless/wl12xx/cmd.c b/drivers/net/wireless/wl12xx/cmd.c
index f0aa7ab97bf7..96324336f936 100644
--- a/drivers/net/wireless/wl12xx/cmd.c
+++ b/drivers/net/wireless/wl12xx/cmd.c
@@ -359,7 +359,7 @@ int wl1271_cmd_test(struct wl1271 *wl, void *buf, size_t buf_len, u8 answer)
  * @wl: wl struct
  * @id: acx id
  * @buf: buffer for the response, including all headers, must work with dma
- * @len: lenght of buf
+ * @len: length of buf
  */
 int wl1271_cmd_interrogate(struct wl1271 *wl, u16 id, void *buf, size_t len)
 {
diff --git a/drivers/net/wireless/wl12xx/conf.h b/drivers/net/wireless/wl12xx/conf.h
index 856a8a2fff4f..8a8323896eec 100644
--- a/drivers/net/wireless/wl12xx/conf.h
+++ b/drivers/net/wireless/wl12xx/conf.h
@@ -497,7 +497,7 @@ struct conf_rx_settings {
 #define CONF_TX_RATE_RETRY_LIMIT       10
 
 /*
- * Rates supported for data packets when operating as AP. Note the absense
+ * Rates supported for data packets when operating as AP. Note the absence
  * of the 22Mbps rate. There is a FW limitation on 12 rates so we must drop
  * one. The rate dropped is not mandatory under any operating mode.
  */
@@ -572,7 +572,7 @@ enum conf_tx_ac {
 	CONF_TX_AC_BK = 1,         /* background */
 	CONF_TX_AC_VI = 2,         /* video */
 	CONF_TX_AC_VO = 3,         /* voice */
-	CONF_TX_AC_CTS2SELF = 4,   /* fictious AC, follows AC_VO */
+	CONF_TX_AC_CTS2SELF = 4,   /* fictitious AC, follows AC_VO */
 	CONF_TX_AC_ANY_TID = 0x1f
 };
 
@@ -1169,7 +1169,7 @@ struct conf_memory_settings {
 
 	/*
 	 * Minimum required free tx memory blocks in order to assure optimum
-	 * performence
+	 * performance
 	 *
 	 * Range: 0-120
 	 */
@@ -1177,7 +1177,7 @@ struct conf_memory_settings {
 
 	/*
 	 * Minimum required free rx memory blocks in order to assure optimum
-	 * performence
+	 * performance
 	 *
 	 * Range: 0-120
 	 */
diff --git a/drivers/net/wireless/wl12xx/io.h b/drivers/net/wireless/wl12xx/io.h
index c1aac8292089..00c771ea70bf 100644
--- a/drivers/net/wireless/wl12xx/io.h
+++ b/drivers/net/wireless/wl12xx/io.h
@@ -94,7 +94,7 @@ static inline int wl1271_translate_addr(struct wl1271 *wl, int addr)
 	 * translated region.
 	 *
 	 * The translated regions occur next to each other in physical device
-	 * memory, so just add the sizes of the preceeding address regions to
+	 * memory, so just add the sizes of the preceding address regions to
 	 * get the offset to the new region.
 	 *
 	 * Currently, only the two first regions are addressed, and the
diff --git a/drivers/net/wireless/wl3501_cs.c b/drivers/net/wireless/wl3501_cs.c
index 3e5befe4d03b..fc08f36fe1f5 100644
--- a/drivers/net/wireless/wl3501_cs.c
+++ b/drivers/net/wireless/wl3501_cs.c
@@ -290,7 +290,7 @@ static void wl3501_get_from_wla(struct wl3501_card *this, u16 src, void *dest,
  *  \               \- IEEE 802.11 -/ \-------------- len --------------/
  *   \-struct wl3501_80211_tx_hdr--/   \-------- Ethernet Frame -------/
  *
- * Return = Postion in Card
+ * Return = Position in Card
  */
 static u16 wl3501_get_tx_buffer(struct wl3501_card *this, u16 len)
 {
@@ -1932,7 +1932,7 @@ static int wl3501_config(struct pcmcia_device *link)
 	this->base_addr = dev->base_addr;
 
 	if (!wl3501_get_flash_mac_addr(this)) {
-		printk(KERN_WARNING "%s: Cant read MAC addr in flash ROM?\n",
+		printk(KERN_WARNING "%s: Can't read MAC addr in flash ROM?\n",
 		       dev->name);
 		unregister_netdev(dev);
 		goto failed;
diff --git a/drivers/net/wireless/zd1211rw/zd_rf_rf2959.c b/drivers/net/wireless/zd1211rw/zd_rf_rf2959.c
index 0597d862fbd2..e36117486c91 100644
--- a/drivers/net/wireless/zd1211rw/zd_rf_rf2959.c
+++ b/drivers/net/wireless/zd1211rw/zd_rf_rf2959.c
@@ -169,7 +169,7 @@ static int rf2959_init_hw(struct zd_rf *rf)
 		{ CR85,  0x00 }, { CR86,  0x10 }, { CR87,  0x2A },
 		{ CR88,  0x10 }, { CR89,  0x24 }, { CR90,  0x18 },
 		/* { CR91,  0x18 }, */
-		/* should solve continous CTS frame problems */
+		/* should solve continuous CTS frame problems */
 		{ CR91,  0x00 },
 		{ CR92,  0x0a }, { CR93,  0x00 }, { CR94,  0x01 },
 		{ CR95,  0x00 }, { CR96,  0x40 }, { CR97,  0x37 },
diff --git a/drivers/net/wireless/zd1211rw/zd_rf_uw2453.c b/drivers/net/wireless/zd1211rw/zd_rf_uw2453.c
index 9e74eb1b67d5..ba0a0ccb1fa0 100644
--- a/drivers/net/wireless/zd1211rw/zd_rf_uw2453.c
+++ b/drivers/net/wireless/zd1211rw/zd_rf_uw2453.c
@@ -353,7 +353,7 @@ static int uw2453_init_hw(struct zd_rf *rf)
 	};
 
 	static const u32 rv[] = {
-		UW2453_REGWRITE(4, 0x2b),    /* configure reciever gain */
+		UW2453_REGWRITE(4, 0x2b),    /* configure receiver gain */
 		UW2453_REGWRITE(5, 0x19e4f), /* configure transmitter gain */
 		UW2453_REGWRITE(6, 0xf81ad), /* enable RX/TX filter tuning */
 		UW2453_REGWRITE(7, 0x3fffe), /* disable TX gain in test mode */
diff --git a/drivers/net/wireless/zd1211rw/zd_usb.c b/drivers/net/wireless/zd1211rw/zd_usb.c
index 81e80489a052..58236e6d0921 100644
--- a/drivers/net/wireless/zd1211rw/zd_usb.c
+++ b/drivers/net/wireless/zd1211rw/zd_usb.c
@@ -60,6 +60,7 @@ static struct usb_device_id usb_ids[] = {
 	{ USB_DEVICE(0x157e, 0x300a), .driver_info = DEVICE_ZD1211 },
 	{ USB_DEVICE(0x157e, 0x300b), .driver_info = DEVICE_ZD1211 },
 	{ USB_DEVICE(0x157e, 0x3204), .driver_info = DEVICE_ZD1211 },
+	{ USB_DEVICE(0x157e, 0x3207), .driver_info = DEVICE_ZD1211 },
 	{ USB_DEVICE(0x1740, 0x2000), .driver_info = DEVICE_ZD1211 },
 	{ USB_DEVICE(0x6891, 0xa727), .driver_info = DEVICE_ZD1211 },
 	/* ZD1211B */
diff --git a/drivers/net/xilinx_emaclite.c b/drivers/net/xilinx_emaclite.c
index 2642af4ee491..372572c0adc6 100644
--- a/drivers/net/xilinx_emaclite.c
+++ b/drivers/net/xilinx_emaclite.c
@@ -786,7 +786,7 @@ static int xemaclite_mdio_read(struct mii_bus *bus, int phy_id, int reg)
  * @reg:	register number to write to
  * @val:	value to write to the register number specified by reg
  *
- * This fucntion waits till the device is ready to accept a new MDIO
+ * This function waits till the device is ready to accept a new MDIO
  * request and then writes the val to the MDIO Write Data register.
  */
 static int xemaclite_mdio_write(struct mii_bus *bus, int phy_id, int reg,
diff --git a/drivers/net/znet.c b/drivers/net/znet.c
index ae07b3dfbcc1..ec2800ff8d42 100644
--- a/drivers/net/znet.c
+++ b/drivers/net/znet.c
@@ -652,7 +652,7 @@ static irqreturn_t znet_interrupt(int irq, void *dev_id)
 					dev->stats.tx_errors++;
 
 				/* Transceiver may be stuck if cable
-				 * was removed while emiting a
+				 * was removed while emitting a
 				 * packet. Flip it off, then on to
 				 * reset it. This is very empirical,
 				 * but it seems to work. */
diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c
index c9db49c10f45..8b63a691a9ed 100644
--- a/drivers/of/fdt.c
+++ b/drivers/of/fdt.c
@@ -676,7 +676,7 @@ int __init early_init_dt_scan_chosen(unsigned long node, const char *uname,
 
 	early_init_dt_check_for_initrd(node);
 
-	/* Retreive command line */
+	/* Retrieve command line */
 	p = of_get_flat_dt_prop(node, "bootargs", &l);
 	if (p != NULL && l > 0)
 		strlcpy(cmd_line, p, min((int)l, COMMAND_LINE_SIZE));
diff --git a/drivers/of/of_mdio.c b/drivers/of/of_mdio.c
index dcd7857784f2..d35e300b0ad1 100644
--- a/drivers/of/of_mdio.c
+++ b/drivers/of/of_mdio.c
@@ -136,7 +136,7 @@ EXPORT_SYMBOL(of_phy_find_device);
  * @hndlr: Link state callback for the network device
  * @iface: PHY data interface type
  *
- * Returns a pointer to the phy_device if successfull.  NULL otherwise
+ * Returns a pointer to the phy_device if successful.  NULL otherwise
  */
 struct phy_device *of_phy_connect(struct net_device *dev,
 				  struct device_node *phy_np,
diff --git a/drivers/parisc/eisa.c b/drivers/parisc/eisa.c
index deeec32a5803..103095bbe8c0 100644
--- a/drivers/parisc/eisa.c
+++ b/drivers/parisc/eisa.c
@@ -340,7 +340,7 @@ static int __init eisa_probe(struct parisc_device *dev)
 	/* Reserve IRQ2 */
 	setup_irq(2, &irq2_action);
 	for (i = 0; i < 16; i++) {
-		set_irq_chip_and_handler(i, &eisa_interrupt_type,
+		irq_set_chip_and_handler(i, &eisa_interrupt_type,
 					 handle_simple_irq);
 	}
 	
diff --git a/drivers/parisc/gsc.c b/drivers/parisc/gsc.c
index ef31080cf591..1bab5a2cd359 100644
--- a/drivers/parisc/gsc.c
+++ b/drivers/parisc/gsc.c
@@ -152,8 +152,8 @@ int gsc_assign_irq(struct irq_chip *type, void *data)
 	if (irq > GSC_IRQ_MAX)
 		return NO_IRQ;
 
-	set_irq_chip_and_handler(irq, type, handle_simple_irq);
-	set_irq_chip_data(irq, data);
+	irq_set_chip_and_handler(irq, type, handle_simple_irq);
+	irq_set_chip_data(irq, data);
 
 	return irq++;
 }
diff --git a/drivers/parisc/pdc_stable.c b/drivers/parisc/pdc_stable.c
index 1062b8ffe244..246a92f677e4 100644
--- a/drivers/parisc/pdc_stable.c
+++ b/drivers/parisc/pdc_stable.c
@@ -141,7 +141,7 @@ struct pdcspath_attribute paths_attr_##_name = { \
  * @entry: A pointer to an allocated pdcspath_entry.
  * 
  * The general idea is that you don't read from the Stable Storage every time
- * you access the files provided by the facilites. We store a copy of the
+ * you access the files provided by the facilities. We store a copy of the
  * content of the stable storage WRT various paths in these structs. We read
  * these structs when reading the files, and we will write to these structs when
  * writing to the files, and only then write them back to the Stable Storage.
@@ -213,7 +213,7 @@ pdcspath_store(struct pdcspath_entry *entry)
 
 	/* addr, devpath and count must be word aligned */
 	if (pdc_stable_write(entry->addr, devpath, sizeof(*devpath)) != PDC_OK) {
-		printk(KERN_ERR "%s: an error occured when writing to PDC.\n"
+		printk(KERN_ERR "%s: an error occurred when writing to PDC.\n"
 				"It is likely that the Stable Storage data has been corrupted.\n"
 				"Please check it carefully upon next reboot.\n", __func__);
 		WARN_ON(1);
diff --git a/drivers/parisc/superio.c b/drivers/parisc/superio.c
index a4d8ff66a639..e3b76d409dee 100644
--- a/drivers/parisc/superio.c
+++ b/drivers/parisc/superio.c
@@ -355,7 +355,8 @@ int superio_fixup_irq(struct pci_dev *pcidev)
 #endif
 
 	for (i = 0; i < 16; i++) {
-		set_irq_chip_and_handler(i, &superio_interrupt_type, handle_simple_irq);
+		irq_set_chip_and_handler(i, &superio_interrupt_type,
+					 handle_simple_irq);
 	}
 
 	/*
diff --git a/drivers/parport/Kconfig b/drivers/parport/Kconfig
index 855f389eea40..d92185a5523b 100644
--- a/drivers/parport/Kconfig
+++ b/drivers/parport/Kconfig
@@ -142,7 +142,7 @@ config PARPORT_AX88796
 	  the AX88796 network controller chip. This code is also available
 	  as a module (say M), called parport_ax88796.
 
-	  The driver is not dependant on the AX88796 network driver, and
+	  The driver is not dependent on the AX88796 network driver, and
 	  should not interfere with the networking functions of the chip.
 
 config PARPORT_1284
diff --git a/drivers/parport/ieee1284.c b/drivers/parport/ieee1284.c
index 8901ecf6e037..f9fd4b33a546 100644
--- a/drivers/parport/ieee1284.c
+++ b/drivers/parport/ieee1284.c
@@ -355,7 +355,7 @@ int parport_negotiate (struct parport *port, int mode)
 		return 0;
 	}
 
-	/* Go to compability forward idle mode */
+	/* Go to compatibility forward idle mode */
 	if (port->ieee1284.mode != IEEE1284_MODE_COMPAT)
 		parport_ieee1284_terminate (port);
 
diff --git a/drivers/parport/parport_pc.c b/drivers/parport/parport_pc.c
index 8d62fb76cd41..a3755ffc03d4 100644
--- a/drivers/parport/parport_pc.c
+++ b/drivers/parport/parport_pc.c
@@ -1488,7 +1488,7 @@ static void __devinit winbond_check(int io, int key)
 
 	outb(key, io);
 	outb(key, io);     /* Write Magic Sequence to EFER, extended
-			      funtion enable register */
+			      function enable register */
 	outb(0x20, io);    /* Write EFIR, extended function index register */
 	devid = inb(io + 1);  /* Read EFDR, extended function data register */
 	outb(0x21, io);
@@ -1527,7 +1527,7 @@ static void __devinit winbond_check2(int io, int key)
 	x_oldid = inb(io + 2);
 
 	outb(key, io);     /* Write Magic Byte to EFER, extended
-			      funtion enable register */
+			      function enable register */
 	outb(0x20, io + 2);  /* Write EFIR, extended function index register */
 	devid = inb(io + 2);  /* Read EFDR, extended function data register */
 	outb(0x21, io + 1);
@@ -1569,7 +1569,7 @@ static void __devinit smsc_check(int io, int key)
 
 	outb(key, io);
 	outb(key, io);     /* Write Magic Sequence to EFER, extended
-			      funtion enable register */
+			      function enable register */
 	outb(0x0d, io);    /* Write EFIR, extended function index register */
 	oldid = inb(io + 1);  /* Read EFDR, extended function data register */
 	outb(0x0e, io);
diff --git a/drivers/pci/dmar.c b/drivers/pci/dmar.c
index 09933eb9126b..12e02bf92c4a 100644
--- a/drivers/pci/dmar.c
+++ b/drivers/pci/dmar.c
@@ -1226,7 +1226,7 @@ const char *dmar_get_fault_reason(u8 fault_reason, int *fault_type)
 
 void dmar_msi_unmask(struct irq_data *data)
 {
-	struct intel_iommu *iommu = irq_data_get_irq_data(data);
+	struct intel_iommu *iommu = irq_data_get_irq_handler_data(data);
 	unsigned long flag;
 
 	/* unmask it */
@@ -1240,7 +1240,7 @@ void dmar_msi_unmask(struct irq_data *data)
 void dmar_msi_mask(struct irq_data *data)
 {
 	unsigned long flag;
-	struct intel_iommu *iommu = irq_data_get_irq_data(data);
+	struct intel_iommu *iommu = irq_data_get_irq_handler_data(data);
 
 	/* mask it */
 	spin_lock_irqsave(&iommu->register_lock, flag);
@@ -1252,7 +1252,7 @@ void dmar_msi_mask(struct irq_data *data)
 
 void dmar_msi_write(int irq, struct msi_msg *msg)
 {
-	struct intel_iommu *iommu = get_irq_data(irq);
+	struct intel_iommu *iommu = irq_get_handler_data(irq);
 	unsigned long flag;
 
 	spin_lock_irqsave(&iommu->register_lock, flag);
@@ -1264,7 +1264,7 @@ void dmar_msi_write(int irq, struct msi_msg *msg)
 
 void dmar_msi_read(int irq, struct msi_msg *msg)
 {
-	struct intel_iommu *iommu = get_irq_data(irq);
+	struct intel_iommu *iommu = irq_get_handler_data(irq);
 	unsigned long flag;
 
 	spin_lock_irqsave(&iommu->register_lock, flag);
@@ -1382,12 +1382,12 @@ int dmar_set_interrupt(struct intel_iommu *iommu)
 		return -EINVAL;
 	}
 
-	set_irq_data(irq, iommu);
+	irq_set_handler_data(irq, iommu);
 	iommu->irq = irq;
 
 	ret = arch_setup_dmar_msi(irq);
 	if (ret) {
-		set_irq_data(irq, NULL);
+		irq_set_handler_data(irq, NULL);
 		iommu->irq = 0;
 		destroy_irq(irq);
 		return ret;
diff --git a/drivers/pci/hotplug/acpi_pcihp.c b/drivers/pci/hotplug/acpi_pcihp.c
index 3bc72d18b121..8f3faf343f75 100644
--- a/drivers/pci/hotplug/acpi_pcihp.c
+++ b/drivers/pci/hotplug/acpi_pcihp.c
@@ -351,7 +351,7 @@ int acpi_get_hp_hw_control_from_firmware(struct pci_dev *pdev, u32 flags)
 	 * To handle different BIOS behavior, we look for _OSC on a root
 	 * bridge preferentially (according to PCI fw spec). Later for
 	 * OSHP within the scope of the hotplug controller and its parents,
-	 * upto the host bridge under which this controller exists.
+	 * up to the host bridge under which this controller exists.
 	 */
 	handle = acpi_find_root_bridge_handle(pdev);
 	if (handle) {
diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c
index e610cfe4f07b..2f67e9bc2f96 100644
--- a/drivers/pci/hotplug/acpiphp_glue.c
+++ b/drivers/pci/hotplug/acpiphp_glue.c
@@ -585,7 +585,7 @@ static void remove_bridge(acpi_handle handle)
 
 	/*
 	 * On root bridges with hotplug slots directly underneath (ie,
-	 * no p2p bridge inbetween), we call cleanup_bridge(). 
+	 * no p2p bridge between), we call cleanup_bridge(). 
 	 *
 	 * The else clause cleans up root bridges that either had no
 	 * hotplug slots at all, or had a p2p bridge underneath.
diff --git a/drivers/pci/hotplug/rpaphp_core.c b/drivers/pci/hotplug/rpaphp_core.c
index ef7411c660b9..758adb5f47fd 100644
--- a/drivers/pci/hotplug/rpaphp_core.c
+++ b/drivers/pci/hotplug/rpaphp_core.c
@@ -290,7 +290,7 @@ static int is_php_dn(struct device_node *dn, const int **indexes,
  * @dn: device node of slot
  *
  * This subroutine will register a hotplugable slot with the
- * PCI hotplug infrastructure. This routine is typicaly called
+ * PCI hotplug infrastructure. This routine is typically called
  * during boot time, if the hotplug slots are present at boot time,
  * or is called later, by the dlpar add code, if the slot is
  * being dynamically added during runtime.
diff --git a/drivers/pci/htirq.c b/drivers/pci/htirq.c
index 834842aa5bbf..db057b6fe0c8 100644
--- a/drivers/pci/htirq.c
+++ b/drivers/pci/htirq.c
@@ -34,7 +34,7 @@ struct ht_irq_cfg {
 
 void write_ht_irq_msg(unsigned int irq, struct ht_irq_msg *msg)
 {
-	struct ht_irq_cfg *cfg = get_irq_data(irq);
+	struct ht_irq_cfg *cfg = irq_get_handler_data(irq);
 	unsigned long flags;
 	spin_lock_irqsave(&ht_irq_lock, flags);
 	if (cfg->msg.address_lo != msg->address_lo) {
@@ -53,13 +53,13 @@ void write_ht_irq_msg(unsigned int irq, struct ht_irq_msg *msg)
 
 void fetch_ht_irq_msg(unsigned int irq, struct ht_irq_msg *msg)
 {
-	struct ht_irq_cfg *cfg = get_irq_data(irq);
+	struct ht_irq_cfg *cfg = irq_get_handler_data(irq);
 	*msg = cfg->msg;
 }
 
 void mask_ht_irq(struct irq_data *data)
 {
-	struct ht_irq_cfg *cfg = irq_data_get_irq_data(data);
+	struct ht_irq_cfg *cfg = irq_data_get_irq_handler_data(data);
 	struct ht_irq_msg msg = cfg->msg;
 
 	msg.address_lo |= 1;
@@ -68,7 +68,7 @@ void mask_ht_irq(struct irq_data *data)
 
 void unmask_ht_irq(struct irq_data *data)
 {
-	struct ht_irq_cfg *cfg = irq_data_get_irq_data(data);
+	struct ht_irq_cfg *cfg = irq_data_get_irq_handler_data(data);
 	struct ht_irq_msg msg = cfg->msg;
 
 	msg.address_lo &= ~1;
@@ -126,7 +126,7 @@ int __ht_create_irq(struct pci_dev *dev, int idx, ht_irq_update_t *update)
 		kfree(cfg);
 		return -EBUSY;
 	}
-	set_irq_data(irq, cfg);
+	irq_set_handler_data(irq, cfg);
 
 	if (arch_setup_ht_irq(irq, dev) < 0) {
 		ht_destroy_irq(irq);
@@ -162,9 +162,9 @@ void ht_destroy_irq(unsigned int irq)
 {
 	struct ht_irq_cfg *cfg;
 
-	cfg = get_irq_data(irq);
-	set_irq_chip(irq, NULL);
-	set_irq_data(irq, NULL);
+	cfg = irq_get_handler_data(irq);
+	irq_set_chip(irq, NULL);
+	irq_set_handler_data(irq, NULL);
 	destroy_irq(irq);
 
 	kfree(cfg);
diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c
index 4789f8e8bf7a..505c1c7075f0 100644
--- a/drivers/pci/intel-iommu.c
+++ b/drivers/pci/intel-iommu.c
@@ -36,7 +36,7 @@
 #include <linux/iova.h>
 #include <linux/iommu.h>
 #include <linux/intel-iommu.h>
-#include <linux/sysdev.h>
+#include <linux/syscore_ops.h>
 #include <linux/tboot.h>
 #include <linux/dmi.h>
 #include <asm/cacheflush.h>
@@ -1206,7 +1206,7 @@ void free_dmar_iommu(struct intel_iommu *iommu)
 		iommu_disable_translation(iommu);
 
 	if (iommu->irq) {
-		set_irq_data(iommu->irq, NULL);
+		irq_set_handler_data(iommu->irq, NULL);
 		/* This will mask the irq */
 		free_irq(iommu->irq, iommu);
 		destroy_irq(iommu->irq);
@@ -2265,7 +2265,7 @@ int __init init_dmars(void)
 		/*
 		 * TBD:
 		 * we could share the same root & context tables
-		 * amoung all IOMMU's. Need to Split it later.
+		 * among all IOMMU's. Need to Split it later.
 		 */
 		ret = iommu_alloc_root_entry(iommu);
 		if (ret) {
@@ -3135,7 +3135,7 @@ static void iommu_flush_all(void)
 	}
 }
 
-static int iommu_suspend(struct sys_device *dev, pm_message_t state)
+static int iommu_suspend(void)
 {
 	struct dmar_drhd_unit *drhd;
 	struct intel_iommu *iommu = NULL;
@@ -3175,7 +3175,7 @@ nomem:
 	return -ENOMEM;
 }
 
-static int iommu_resume(struct sys_device *dev)
+static void iommu_resume(void)
 {
 	struct dmar_drhd_unit *drhd;
 	struct intel_iommu *iommu = NULL;
@@ -3183,7 +3183,7 @@ static int iommu_resume(struct sys_device *dev)
 
 	if (init_iommu_hw()) {
 		WARN(1, "IOMMU setup failed, DMAR can not resume!\n");
-		return -EIO;
+		return;
 	}
 
 	for_each_active_iommu(iommu, drhd) {
@@ -3204,40 +3204,20 @@ static int iommu_resume(struct sys_device *dev)
 
 	for_each_active_iommu(iommu, drhd)
 		kfree(iommu->iommu_state);
-
-	return 0;
 }
 
-static struct sysdev_class iommu_sysclass = {
-	.name		= "iommu",
+static struct syscore_ops iommu_syscore_ops = {
 	.resume		= iommu_resume,
 	.suspend	= iommu_suspend,
 };
 
-static struct sys_device device_iommu = {
-	.cls	= &iommu_sysclass,
-};
-
-static int __init init_iommu_sysfs(void)
+static void __init init_iommu_pm_ops(void)
 {
-	int error;
-
-	error = sysdev_class_register(&iommu_sysclass);
-	if (error)
-		return error;
-
-	error = sysdev_register(&device_iommu);
-	if (error)
-		sysdev_class_unregister(&iommu_sysclass);
-
-	return error;
+	register_syscore_ops(&iommu_syscore_ops);
 }
 
 #else
-static int __init init_iommu_sysfs(void)
-{
-	return 0;
-}
+static inline int init_iommu_pm_ops(void) { }
 #endif	/* CONFIG_PM */
 
 /*
@@ -3320,7 +3300,7 @@ int __init intel_iommu_init(void)
 #endif
 	dma_ops = &intel_dma_ops;
 
-	init_iommu_sysfs();
+	init_iommu_pm_ops();
 
 	register_iommu(&intel_iommu_ops);
 
diff --git a/drivers/pci/intr_remapping.c b/drivers/pci/intr_remapping.c
index ec87cd66f3eb..3607faf28a4d 100644
--- a/drivers/pci/intr_remapping.c
+++ b/drivers/pci/intr_remapping.c
@@ -50,7 +50,7 @@ static DEFINE_SPINLOCK(irq_2_ir_lock);
 
 static struct irq_2_iommu *irq_2_iommu(unsigned int irq)
 {
-	struct irq_cfg *cfg = get_irq_chip_data(irq);
+	struct irq_cfg *cfg = irq_get_chip_data(irq);
 	return cfg ? &cfg->irq_2_iommu : NULL;
 }
 
@@ -289,7 +289,7 @@ int free_irte(int irq)
  * source validation type
  */
 #define SVT_NO_VERIFY		0x0  /* no verification is required */
-#define SVT_VERIFY_SID_SQ	0x1  /* verify using SID and SQ fiels */
+#define SVT_VERIFY_SID_SQ	0x1  /* verify using SID and SQ fields */
 #define SVT_VERIFY_BUS		0x2  /* verify bus of request-id */
 
 /*
diff --git a/drivers/pci/iova.c b/drivers/pci/iova.c
index 7914951ef29a..9606e599a475 100644
--- a/drivers/pci/iova.c
+++ b/drivers/pci/iova.c
@@ -391,7 +391,7 @@ reserve_iova(struct iova_domain *iovad,
 				break;
 	}
 
-	/* We are here either becasue this is the first reserver node
+	/* We are here either because this is the first reserver node
 	 * or need to insert remaining non overlap addr range
 	 */
 	iova = __insert_new_range(iovad, pfn_lo, pfn_hi);
diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
index 44b0aeee83e5..2f10328bf661 100644
--- a/drivers/pci/msi.c
+++ b/drivers/pci/msi.c
@@ -236,7 +236,7 @@ void __read_msi_msg(struct msi_desc *entry, struct msi_msg *msg)
 
 void read_msi_msg(unsigned int irq, struct msi_msg *msg)
 {
-	struct msi_desc *entry = get_irq_msi(irq);
+	struct msi_desc *entry = irq_get_msi_desc(irq);
 
 	__read_msi_msg(entry, msg);
 }
@@ -253,7 +253,7 @@ void __get_cached_msi_msg(struct msi_desc *entry, struct msi_msg *msg)
 
 void get_cached_msi_msg(unsigned int irq, struct msi_msg *msg)
 {
-	struct msi_desc *entry = get_irq_msi(irq);
+	struct msi_desc *entry = irq_get_msi_desc(irq);
 
 	__get_cached_msi_msg(entry, msg);
 }
@@ -297,7 +297,7 @@ void __write_msi_msg(struct msi_desc *entry, struct msi_msg *msg)
 
 void write_msi_msg(unsigned int irq, struct msi_msg *msg)
 {
-	struct msi_desc *entry = get_irq_msi(irq);
+	struct msi_desc *entry = irq_get_msi_desc(irq);
 
 	__write_msi_msg(entry, msg);
 }
@@ -354,7 +354,7 @@ static void __pci_restore_msi_state(struct pci_dev *dev)
 	if (!dev->msi_enabled)
 		return;
 
-	entry = get_irq_msi(dev->irq);
+	entry = irq_get_msi_desc(dev->irq);
 	pos = entry->msi_attrib.pos;
 
 	pci_intx_for_msi(dev, 0);
@@ -519,7 +519,7 @@ static void msix_program_entries(struct pci_dev *dev,
 						PCI_MSIX_ENTRY_VECTOR_CTRL;
 
 		entries[i].vector = entry->irq;
-		set_irq_msi(entry->irq, entry);
+		irq_set_msi_desc(entry->irq, entry);
 		entry->masked = readl(entry->mask_base + offset);
 		msix_mask_irq(entry, 1);
 		i++;
diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
index a8a277a2e0d0..f8deb3e380a2 100644
--- a/drivers/pci/pci-sysfs.c
+++ b/drivers/pci/pci-sysfs.c
@@ -645,7 +645,7 @@ pci_adjust_legacy_attr(struct pci_bus *b, enum pci_mmap_state mmap_type)
  * a per-bus basis.  This routine creates the files and ties them into
  * their associated read, write and mmap files from pci-sysfs.c
  *
- * On error unwind, but don't propogate the error to the caller
+ * On error unwind, but don't propagate the error to the caller
  * as it is ok to set up the PCI bus without these files.
  */
 void pci_create_legacy_files(struct pci_bus *b)
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index b714d787bddd..2472e7177b4b 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -740,6 +740,12 @@ int pci_set_power_state(struct pci_dev *dev, pci_power_t state)
 
 	if (!__pci_complete_power_transition(dev, state))
 		error = 0;
+	/*
+	 * When aspm_policy is "powersave" this call ensures
+	 * that ASPM is configured.
+	 */
+	if (!error && dev->bus->self)
+		pcie_aspm_powersave_config_link(dev->bus->self);
 
 	return error;
 }
diff --git a/drivers/pci/pcie/aspm.c b/drivers/pci/pcie/aspm.c
index 3188cd96b338..eee09f756ec9 100644
--- a/drivers/pci/pcie/aspm.c
+++ b/drivers/pci/pcie/aspm.c
@@ -69,6 +69,7 @@ struct pcie_link_state {
 };
 
 static int aspm_disabled, aspm_force, aspm_clear_state;
+static bool aspm_support_enabled = true;
 static DEFINE_MUTEX(aspm_lock);
 static LIST_HEAD(link_list);
 
@@ -707,6 +708,28 @@ void pcie_aspm_pm_state_change(struct pci_dev *pdev)
 	up_read(&pci_bus_sem);
 }
 
+void pcie_aspm_powersave_config_link(struct pci_dev *pdev)
+{
+	struct pcie_link_state *link = pdev->link_state;
+
+	if (aspm_disabled || !pci_is_pcie(pdev) || !link)
+		return;
+
+	if (aspm_policy != POLICY_POWERSAVE)
+		return;
+
+	if ((pdev->pcie_type != PCI_EXP_TYPE_ROOT_PORT) &&
+	    (pdev->pcie_type != PCI_EXP_TYPE_DOWNSTREAM))
+		return;
+
+	down_read(&pci_bus_sem);
+	mutex_lock(&aspm_lock);
+	pcie_config_aspm_path(link);
+	pcie_set_clkpm(link, policy_to_clkpm_state(link));
+	mutex_unlock(&aspm_lock);
+	up_read(&pci_bus_sem);
+}
+
 /*
  * pci_disable_link_state - disable pci device's link state, so the link will
  * never enter specific states
@@ -747,6 +770,8 @@ static int pcie_aspm_set_policy(const char *val, struct kernel_param *kp)
 	int i;
 	struct pcie_link_state *link;
 
+	if (aspm_disabled)
+		return -EPERM;
 	for (i = 0; i < ARRAY_SIZE(policy_str); i++)
 		if (!strncmp(val, policy_str[i], strlen(policy_str[i])))
 			break;
@@ -801,6 +826,8 @@ static ssize_t link_state_store(struct device *dev,
 	struct pcie_link_state *link, *root = pdev->link_state->root;
 	u32 val = buf[0] - '0', state = 0;
 
+	if (aspm_disabled)
+		return -EPERM;
 	if (n < 1 || val > 3)
 		return -EINVAL;
 
@@ -896,6 +923,7 @@ static int __init pcie_aspm_disable(char *str)
 {
 	if (!strcmp(str, "off")) {
 		aspm_disabled = 1;
+		aspm_support_enabled = false;
 		printk(KERN_INFO "PCIe ASPM is disabled\n");
 	} else if (!strcmp(str, "force")) {
 		aspm_force = 1;
@@ -930,3 +958,8 @@ int pcie_aspm_enabled(void)
 }
 EXPORT_SYMBOL(pcie_aspm_enabled);
 
+bool pcie_aspm_support_enabled(void)
+{
+	return aspm_support_enabled;
+}
+EXPORT_SYMBOL(pcie_aspm_support_enabled);
diff --git a/drivers/pci/pcie/portdrv_core.c b/drivers/pci/pcie/portdrv_core.c
index 5130d0d22390..595654a1a6a6 100644
--- a/drivers/pci/pcie/portdrv_core.c
+++ b/drivers/pci/pcie/portdrv_core.c
@@ -15,7 +15,6 @@
 #include <linux/slab.h>
 #include <linux/pcieport_if.h>
 #include <linux/aer.h>
-#include <linux/pci-aspm.h>
 
 #include "../pci.h"
 #include "portdrv.h"
@@ -356,10 +355,8 @@ int pcie_port_device_register(struct pci_dev *dev)
 
 	/* Get and check PCI Express port services */
 	capabilities = get_port_device_capability(dev);
-	if (!capabilities) {
-		pcie_no_aspm();
+	if (!capabilities)
 		return 0;
-	}
 
 	pci_set_master(dev);
 	/*
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index bd80f6378463..5129ed6d8fa7 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -263,7 +263,7 @@ static void quirk_vialatency(struct pci_dev *dev)
 	 *	This happens to include the IDE controllers....
 	 *
 	 *	VIA only apply this fix when an SB Live! is present but under
-	 *	both Linux and Windows this isnt enough, and we have seen
+	 *	both Linux and Windows this isn't enough, and we have seen
 	 *	corruption without SB Live! but with things like 3 UDMA IDE
 	 *	controllers. So we ignore that bit of the VIA recommendation..
 	 */
@@ -2680,7 +2680,7 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_HINT, 0x0020, quirk_hotplug_bridge);
  * This is a quirk for the Ricoh MMC controller found as a part of
  * some mulifunction chips.
 
- * This is very similiar and based on the ricoh_mmc driver written by
+ * This is very similar and based on the ricoh_mmc driver written by
  * Philip Langdale. Thank you for these magic sequences.
  *
  * These chips implement the four main memory card controllers (SD, MMC, MS, xD)
diff --git a/drivers/pcmcia/bfin_cf_pcmcia.c b/drivers/pcmcia/bfin_cf_pcmcia.c
index eae9cbe37a3e..49221395101e 100644
--- a/drivers/pcmcia/bfin_cf_pcmcia.c
+++ b/drivers/pcmcia/bfin_cf_pcmcia.c
@@ -235,7 +235,7 @@ static int __devinit bfin_cf_probe(struct platform_device *pdev)
 	cf->irq = irq;
 	cf->socket.pci_irq = irq;
 
-	set_irq_type(irq, IRQF_TRIGGER_LOW);
+	irq_set_irq_type(irq, IRQF_TRIGGER_LOW);
 
 	io_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	attr_mem = platform_get_resource(pdev, IORESOURCE_MEM, 1);
diff --git a/drivers/pcmcia/db1xxx_ss.c b/drivers/pcmcia/db1xxx_ss.c
index 27575e6378a1..01757f18a208 100644
--- a/drivers/pcmcia/db1xxx_ss.c
+++ b/drivers/pcmcia/db1xxx_ss.c
@@ -181,7 +181,7 @@ static int db1x_pcmcia_setup_irqs(struct db1x_pcmcia_sock *sock)
 		/* all other (older) Db1x00 boards use a GPIO to show
 		 * card detection status:  use both-edge triggers.
 		 */
-		set_irq_type(sock->insert_irq, IRQ_TYPE_EDGE_BOTH);
+		irq_set_irq_type(sock->insert_irq, IRQ_TYPE_EDGE_BOTH);
 		ret = request_irq(sock->insert_irq, db1000_pcmcia_cdirq,
 				  0, "pcmcia_carddetect", sock);
 
diff --git a/drivers/pcmcia/i82092.c b/drivers/pcmcia/i82092.c
index fc7906eaf228..3e447d0387b7 100644
--- a/drivers/pcmcia/i82092.c
+++ b/drivers/pcmcia/i82092.c
@@ -54,7 +54,7 @@ static struct pccard_operations i82092aa_operations = {
 	.set_mem_map		= i82092aa_set_mem_map,
 };
 
-/* The card can do upto 4 sockets, allocate a structure for each of them */
+/* The card can do up to 4 sockets, allocate a structure for each of them */
 
 struct socket_info {
 	int	number;
diff --git a/drivers/pcmcia/pcmcia_resource.c b/drivers/pcmcia/pcmcia_resource.c
index 42fbf1a75576..fe77e8223841 100644
--- a/drivers/pcmcia/pcmcia_resource.c
+++ b/drivers/pcmcia/pcmcia_resource.c
@@ -173,7 +173,7 @@ static int pcmcia_access_config(struct pcmcia_device *p_dev,
 	c = p_dev->function_config;
 
 	if (!(c->state & CONFIG_LOCKED)) {
-		dev_dbg(&p_dev->dev, "Configuration isnt't locked\n");
+		dev_dbg(&p_dev->dev, "Configuration isn't't locked\n");
 		mutex_unlock(&s->ops_mutex);
 		return -EACCES;
 	}
diff --git a/drivers/pcmcia/pxa2xx_colibri.c b/drivers/pcmcia/pxa2xx_colibri.c
index a52039564e74..443cb7fc872d 100644
--- a/drivers/pcmcia/pxa2xx_colibri.c
+++ b/drivers/pcmcia/pxa2xx_colibri.c
@@ -34,14 +34,24 @@
 #define	COLIBRI320_DETECT_GPIO	81
 #define	COLIBRI320_READY_GPIO	29
 
-static struct {
-	int	reset_gpio;
-	int	ppen_gpio;
-	int	bvd1_gpio;
-	int	bvd2_gpio;
-	int	detect_gpio;
-	int	ready_gpio;
-} colibri_pcmcia_gpio;
+enum {
+	DETECT = 0,
+	READY = 1,
+	BVD1 = 2,
+	BVD2 = 3,
+	PPEN = 4,
+	RESET = 5,
+};
+
+/* Contents of this array are configured on-the-fly in init function */
+static struct gpio colibri_pcmcia_gpios[] = {
+	{ 0,	GPIOF_IN,	"PCMCIA Detect" },
+	{ 0,	GPIOF_IN,	"PCMCIA Ready" },
+	{ 0,	GPIOF_IN,	"PCMCIA BVD1" },
+	{ 0,	GPIOF_IN,	"PCMCIA BVD2" },
+	{ 0,	GPIOF_INIT_LOW,	"PCMCIA PPEN" },
+	{ 0,	GPIOF_INIT_HIGH,"PCMCIA Reset" },
+};
 
 static struct pcmcia_irqs colibri_irqs[] = {
 	{
@@ -54,88 +64,42 @@ static int colibri_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
 {
 	int ret;
 
-	ret = gpio_request(colibri_pcmcia_gpio.detect_gpio, "DETECT");
+	ret = gpio_request_array(colibri_pcmcia_gpios,
+				ARRAY_SIZE(colibri_pcmcia_gpios));
 	if (ret)
 		goto err1;
-	ret = gpio_direction_input(colibri_pcmcia_gpio.detect_gpio);
-	if (ret)
-		goto err2;
-
-	ret = gpio_request(colibri_pcmcia_gpio.ready_gpio, "READY");
-	if (ret)
-		goto err2;
-	ret = gpio_direction_input(colibri_pcmcia_gpio.ready_gpio);
-	if (ret)
-		goto err3;
 
-	ret = gpio_request(colibri_pcmcia_gpio.bvd1_gpio, "BVD1");
-	if (ret)
-		goto err3;
-	ret = gpio_direction_input(colibri_pcmcia_gpio.bvd1_gpio);
-	if (ret)
-		goto err4;
+	colibri_irqs[0].irq = gpio_to_irq(colibri_pcmcia_gpios[DETECT].gpio);
+	skt->socket.pci_irq = gpio_to_irq(colibri_pcmcia_gpios[READY].gpio);
 
-	ret = gpio_request(colibri_pcmcia_gpio.bvd2_gpio, "BVD2");
-	if (ret)
-		goto err4;
-	ret = gpio_direction_input(colibri_pcmcia_gpio.bvd2_gpio);
-	if (ret)
-		goto err5;
-
-	ret = gpio_request(colibri_pcmcia_gpio.ppen_gpio, "PPEN");
-	if (ret)
-		goto err5;
-	ret = gpio_direction_output(colibri_pcmcia_gpio.ppen_gpio, 0);
-	if (ret)
-		goto err6;
-
-	ret = gpio_request(colibri_pcmcia_gpio.reset_gpio, "RESET");
-	if (ret)
-		goto err6;
-	ret = gpio_direction_output(colibri_pcmcia_gpio.reset_gpio, 1);
+	ret = soc_pcmcia_request_irqs(skt, colibri_irqs,
+					ARRAY_SIZE(colibri_irqs));
 	if (ret)
-		goto err7;
-
-	colibri_irqs[0].irq = gpio_to_irq(colibri_pcmcia_gpio.detect_gpio);
-	skt->socket.pci_irq = gpio_to_irq(colibri_pcmcia_gpio.ready_gpio);
+		goto err2;
 
-	return soc_pcmcia_request_irqs(skt, colibri_irqs,
-					ARRAY_SIZE(colibri_irqs));
+	return ret;
 
-err7:
-	gpio_free(colibri_pcmcia_gpio.detect_gpio);
-err6:
-	gpio_free(colibri_pcmcia_gpio.ready_gpio);
-err5:
-	gpio_free(colibri_pcmcia_gpio.bvd1_gpio);
-err4:
-	gpio_free(colibri_pcmcia_gpio.bvd2_gpio);
-err3:
-	gpio_free(colibri_pcmcia_gpio.reset_gpio);
 err2:
-	gpio_free(colibri_pcmcia_gpio.ppen_gpio);
+	gpio_free_array(colibri_pcmcia_gpios,
+			ARRAY_SIZE(colibri_pcmcia_gpios));
 err1:
 	return ret;
 }
 
 static void colibri_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
 {
-	gpio_free(colibri_pcmcia_gpio.detect_gpio);
-	gpio_free(colibri_pcmcia_gpio.ready_gpio);
-	gpio_free(colibri_pcmcia_gpio.bvd1_gpio);
-	gpio_free(colibri_pcmcia_gpio.bvd2_gpio);
-	gpio_free(colibri_pcmcia_gpio.reset_gpio);
-	gpio_free(colibri_pcmcia_gpio.ppen_gpio);
+	gpio_free_array(colibri_pcmcia_gpios,
+			ARRAY_SIZE(colibri_pcmcia_gpios));
 }
 
 static void colibri_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
 					struct pcmcia_state *state)
 {
 
-	state->detect = !!gpio_get_value(colibri_pcmcia_gpio.detect_gpio);
-	state->ready  = !!gpio_get_value(colibri_pcmcia_gpio.ready_gpio);
-	state->bvd1   = !!gpio_get_value(colibri_pcmcia_gpio.bvd1_gpio);
-	state->bvd2   = !!gpio_get_value(colibri_pcmcia_gpio.bvd2_gpio);
+	state->detect = !!gpio_get_value(colibri_pcmcia_gpios[DETECT].gpio);
+	state->ready  = !!gpio_get_value(colibri_pcmcia_gpios[READY].gpio);
+	state->bvd1   = !!gpio_get_value(colibri_pcmcia_gpios[BVD1].gpio);
+	state->bvd2   = !!gpio_get_value(colibri_pcmcia_gpios[BVD2].gpio);
 	state->wrprot = 0;
 	state->vs_3v  = 1;
 	state->vs_Xv  = 0;
@@ -145,9 +109,10 @@ static int
 colibri_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
 				const socket_state_t *state)
 {
-	gpio_set_value(colibri_pcmcia_gpio.ppen_gpio,
+	gpio_set_value(colibri_pcmcia_gpios[PPEN].gpio,
 			!(state->Vcc == 33 && state->Vpp < 50));
-	gpio_set_value(colibri_pcmcia_gpio.reset_gpio, state->flags & SS_RESET);
+	gpio_set_value(colibri_pcmcia_gpios[RESET].gpio,
+			state->flags & SS_RESET);
 	return 0;
 }
 
@@ -190,20 +155,20 @@ static int __init colibri_pcmcia_init(void)
 
 	/* Colibri PXA270 */
 	if (machine_is_colibri()) {
-		colibri_pcmcia_gpio.reset_gpio	= COLIBRI270_RESET_GPIO;
-		colibri_pcmcia_gpio.ppen_gpio	= COLIBRI270_PPEN_GPIO;
-		colibri_pcmcia_gpio.bvd1_gpio	= COLIBRI270_BVD1_GPIO;
-		colibri_pcmcia_gpio.bvd2_gpio	= COLIBRI270_BVD2_GPIO;
-		colibri_pcmcia_gpio.detect_gpio	= COLIBRI270_DETECT_GPIO;
-		colibri_pcmcia_gpio.ready_gpio	= COLIBRI270_READY_GPIO;
+		colibri_pcmcia_gpios[RESET].gpio	= COLIBRI270_RESET_GPIO;
+		colibri_pcmcia_gpios[PPEN].gpio		= COLIBRI270_PPEN_GPIO;
+		colibri_pcmcia_gpios[BVD1].gpio		= COLIBRI270_BVD1_GPIO;
+		colibri_pcmcia_gpios[BVD2].gpio		= COLIBRI270_BVD2_GPIO;
+		colibri_pcmcia_gpios[DETECT].gpio	= COLIBRI270_DETECT_GPIO;
+		colibri_pcmcia_gpios[READY].gpio	= COLIBRI270_READY_GPIO;
 	/* Colibri PXA320 */
 	} else if (machine_is_colibri320()) {
-		colibri_pcmcia_gpio.reset_gpio	= COLIBRI320_RESET_GPIO;
-		colibri_pcmcia_gpio.ppen_gpio	= COLIBRI320_PPEN_GPIO;
-		colibri_pcmcia_gpio.bvd1_gpio	= COLIBRI320_BVD1_GPIO;
-		colibri_pcmcia_gpio.bvd2_gpio	= COLIBRI320_BVD2_GPIO;
-		colibri_pcmcia_gpio.detect_gpio	= COLIBRI320_DETECT_GPIO;
-		colibri_pcmcia_gpio.ready_gpio	= COLIBRI320_READY_GPIO;
+		colibri_pcmcia_gpios[RESET].gpio	= COLIBRI320_RESET_GPIO;
+		colibri_pcmcia_gpios[PPEN].gpio		= COLIBRI320_PPEN_GPIO;
+		colibri_pcmcia_gpios[BVD1].gpio		= COLIBRI320_BVD1_GPIO;
+		colibri_pcmcia_gpios[BVD2].gpio		= COLIBRI320_BVD2_GPIO;
+		colibri_pcmcia_gpios[DETECT].gpio	= COLIBRI320_DETECT_GPIO;
+		colibri_pcmcia_gpios[READY].gpio	= COLIBRI320_READY_GPIO;
 	}
 
 	ret = platform_device_add_data(colibri_pcmcia_device,
diff --git a/drivers/pcmcia/pxa2xx_lubbock.c b/drivers/pcmcia/pxa2xx_lubbock.c
index 25afe637c657..c21888eebb58 100644
--- a/drivers/pcmcia/pxa2xx_lubbock.c
+++ b/drivers/pcmcia/pxa2xx_lubbock.c
@@ -187,7 +187,7 @@ lubbock_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
 			 * We need to hack around the const qualifier as
 			 * well to keep this ugly workaround localized and
 			 * not force it to the rest of the code. Barf bags
-			 * avaliable in the seat pocket in front of you!
+			 * available in the seat pocket in front of you!
 			 */
 			((socket_state_t *)state)->Vcc = 50;
 			((socket_state_t *)state)->Vpp = 50;
diff --git a/drivers/pcmcia/pxa2xx_palmld.c b/drivers/pcmcia/pxa2xx_palmld.c
index 6fb6f7f0672e..69f73670949a 100644
--- a/drivers/pcmcia/pxa2xx_palmld.c
+++ b/drivers/pcmcia/pxa2xx_palmld.c
@@ -4,7 +4,7 @@
  * Driver for Palm LifeDrive PCMCIA
  *
  * Copyright (C) 2006 Alex Osborne <ato@meshy.org>
- * Copyright (C) 2007-2008 Marek Vasut <marek.vasut@gmail.com>
+ * Copyright (C) 2007-2011 Marek Vasut <marek.vasut@gmail.com>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -20,49 +20,27 @@
 #include <mach/palmld.h>
 #include "soc_common.h"
 
+static struct gpio palmld_pcmcia_gpios[] = {
+	{ GPIO_NR_PALMLD_PCMCIA_POWER,	GPIOF_INIT_LOW,	"PCMCIA Power" },
+	{ GPIO_NR_PALMLD_PCMCIA_RESET,	GPIOF_INIT_HIGH,"PCMCIA Reset" },
+	{ GPIO_NR_PALMLD_PCMCIA_READY,	GPIOF_IN,	"PCMCIA Ready" },
+};
+
 static int palmld_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
 {
 	int ret;
 
-	ret = gpio_request(GPIO_NR_PALMLD_PCMCIA_POWER, "PCMCIA PWR");
-	if (ret)
-		goto err1;
-	ret = gpio_direction_output(GPIO_NR_PALMLD_PCMCIA_POWER, 0);
-	if (ret)
-		goto err2;
-
-	ret = gpio_request(GPIO_NR_PALMLD_PCMCIA_RESET, "PCMCIA RST");
-	if (ret)
-		goto err2;
-	ret = gpio_direction_output(GPIO_NR_PALMLD_PCMCIA_RESET, 1);
-	if (ret)
-		goto err3;
-
-	ret = gpio_request(GPIO_NR_PALMLD_PCMCIA_READY, "PCMCIA RDY");
-	if (ret)
-		goto err3;
-	ret = gpio_direction_input(GPIO_NR_PALMLD_PCMCIA_READY);
-	if (ret)
-		goto err4;
+	ret = gpio_request_array(palmld_pcmcia_gpios,
+				ARRAY_SIZE(palmld_pcmcia_gpios));
 
 	skt->socket.pci_irq = IRQ_GPIO(GPIO_NR_PALMLD_PCMCIA_READY);
-	return 0;
 
-err4:
-	gpio_free(GPIO_NR_PALMLD_PCMCIA_READY);
-err3:
-	gpio_free(GPIO_NR_PALMLD_PCMCIA_RESET);
-err2:
-	gpio_free(GPIO_NR_PALMLD_PCMCIA_POWER);
-err1:
 	return ret;
 }
 
 static void palmld_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
 {
-	gpio_free(GPIO_NR_PALMLD_PCMCIA_READY);
-	gpio_free(GPIO_NR_PALMLD_PCMCIA_RESET);
-	gpio_free(GPIO_NR_PALMLD_PCMCIA_POWER);
+	gpio_free_array(palmld_pcmcia_gpios, ARRAY_SIZE(palmld_pcmcia_gpios));
 }
 
 static void palmld_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
diff --git a/drivers/pcmcia/pxa2xx_palmtc.c b/drivers/pcmcia/pxa2xx_palmtc.c
index 459a232d66be..d0ad6a76bbde 100644
--- a/drivers/pcmcia/pxa2xx_palmtc.c
+++ b/drivers/pcmcia/pxa2xx_palmtc.c
@@ -4,7 +4,7 @@
  * Driver for Palm Tungsten|C PCMCIA
  *
  * Copyright (C) 2008 Alex Osborne <ato@meshy.org>
- * Copyright (C) 2009 Marek Vasut <marek.vasut@gmail.com>
+ * Copyright (C) 2009-2011 Marek Vasut <marek.vasut@gmail.com>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -21,79 +21,30 @@
 #include <mach/palmtc.h>
 #include "soc_common.h"
 
+static struct gpio palmtc_pcmcia_gpios[] = {
+	{ GPIO_NR_PALMTC_PCMCIA_POWER1,	GPIOF_INIT_LOW,	"PCMCIA Power 1" },
+	{ GPIO_NR_PALMTC_PCMCIA_POWER2,	GPIOF_INIT_LOW,	"PCMCIA Power 2" },
+	{ GPIO_NR_PALMTC_PCMCIA_POWER3,	GPIOF_INIT_LOW,	"PCMCIA Power 3" },
+	{ GPIO_NR_PALMTC_PCMCIA_RESET,	GPIOF_INIT_HIGH,"PCMCIA Reset" },
+	{ GPIO_NR_PALMTC_PCMCIA_READY,	GPIOF_IN,	"PCMCIA Ready" },
+	{ GPIO_NR_PALMTC_PCMCIA_PWRREADY, GPIOF_IN,	"PCMCIA Power Ready" },
+};
+
 static int palmtc_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
 {
 	int ret;
 
-	ret = gpio_request(GPIO_NR_PALMTC_PCMCIA_POWER1, "PCMCIA PWR1");
-	if (ret)
-		goto err1;
-	ret = gpio_direction_output(GPIO_NR_PALMTC_PCMCIA_POWER1, 0);
-	if (ret)
-		goto err2;
-
-	ret = gpio_request(GPIO_NR_PALMTC_PCMCIA_POWER2, "PCMCIA PWR2");
-	if (ret)
-		goto err2;
-	ret = gpio_direction_output(GPIO_NR_PALMTC_PCMCIA_POWER2, 0);
-	if (ret)
-		goto err3;
-
-	ret = gpio_request(GPIO_NR_PALMTC_PCMCIA_POWER3, "PCMCIA PWR3");
-	if (ret)
-		goto err3;
-	ret = gpio_direction_output(GPIO_NR_PALMTC_PCMCIA_POWER3, 0);
-	if (ret)
-		goto err4;
-
-	ret = gpio_request(GPIO_NR_PALMTC_PCMCIA_RESET, "PCMCIA RST");
-	if (ret)
-		goto err4;
-	ret = gpio_direction_output(GPIO_NR_PALMTC_PCMCIA_RESET, 1);
-	if (ret)
-		goto err5;
-
-	ret = gpio_request(GPIO_NR_PALMTC_PCMCIA_READY, "PCMCIA RDY");
-	if (ret)
-		goto err5;
-	ret = gpio_direction_input(GPIO_NR_PALMTC_PCMCIA_READY);
-	if (ret)
-		goto err6;
-
-	ret = gpio_request(GPIO_NR_PALMTC_PCMCIA_PWRREADY, "PCMCIA PWRRDY");
-	if (ret)
-		goto err6;
-	ret = gpio_direction_input(GPIO_NR_PALMTC_PCMCIA_PWRREADY);
-	if (ret)
-		goto err7;
+	ret = gpio_request_array(palmtc_pcmcia_gpios,
+				ARRAY_SIZE(palmtc_pcmcia_gpios));
 
 	skt->socket.pci_irq = IRQ_GPIO(GPIO_NR_PALMTC_PCMCIA_READY);
-	return 0;
 
-err7:
-	gpio_free(GPIO_NR_PALMTC_PCMCIA_PWRREADY);
-err6:
-	gpio_free(GPIO_NR_PALMTC_PCMCIA_READY);
-err5:
-	gpio_free(GPIO_NR_PALMTC_PCMCIA_RESET);
-err4:
-	gpio_free(GPIO_NR_PALMTC_PCMCIA_POWER3);
-err3:
-	gpio_free(GPIO_NR_PALMTC_PCMCIA_POWER2);
-err2:
-	gpio_free(GPIO_NR_PALMTC_PCMCIA_POWER1);
-err1:
 	return ret;
 }
 
 static void palmtc_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
 {
-	gpio_free(GPIO_NR_PALMTC_PCMCIA_PWRREADY);
-	gpio_free(GPIO_NR_PALMTC_PCMCIA_READY);
-	gpio_free(GPIO_NR_PALMTC_PCMCIA_RESET);
-	gpio_free(GPIO_NR_PALMTC_PCMCIA_POWER3);
-	gpio_free(GPIO_NR_PALMTC_PCMCIA_POWER2);
-	gpio_free(GPIO_NR_PALMTC_PCMCIA_POWER1);
+	gpio_free_array(palmtc_pcmcia_gpios, ARRAY_SIZE(palmtc_pcmcia_gpios));
 }
 
 static void palmtc_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
diff --git a/drivers/pcmcia/pxa2xx_palmtx.c b/drivers/pcmcia/pxa2xx_palmtx.c
index b07b247a399f..1a2580450402 100644
--- a/drivers/pcmcia/pxa2xx_palmtx.c
+++ b/drivers/pcmcia/pxa2xx_palmtx.c
@@ -3,7 +3,7 @@
  *
  * Driver for Palm T|X PCMCIA
  *
- * Copyright (C) 2007-2008 Marek Vasut <marek.vasut@gmail.com>
+ * Copyright (C) 2007-2011 Marek Vasut <marek.vasut@gmail.com>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -13,67 +13,34 @@
 
 #include <linux/module.h>
 #include <linux/platform_device.h>
+#include <linux/gpio.h>
 
 #include <asm/mach-types.h>
-
-#include <mach/gpio.h>
 #include <mach/palmtx.h>
-
 #include "soc_common.h"
 
+static struct gpio palmtx_pcmcia_gpios[] = {
+	{ GPIO_NR_PALMTX_PCMCIA_POWER1,	GPIOF_INIT_LOW,	"PCMCIA Power 1" },
+	{ GPIO_NR_PALMTX_PCMCIA_POWER2,	GPIOF_INIT_LOW,	"PCMCIA Power 2" },
+	{ GPIO_NR_PALMTX_PCMCIA_RESET,	GPIOF_INIT_HIGH,"PCMCIA Reset" },
+	{ GPIO_NR_PALMTX_PCMCIA_READY,	GPIOF_IN,	"PCMCIA Ready" },
+};
+
 static int palmtx_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
 {
 	int ret;
 
-	ret = gpio_request(GPIO_NR_PALMTX_PCMCIA_POWER1, "PCMCIA PWR1");
-	if (ret)
-		goto err1;
-	ret = gpio_direction_output(GPIO_NR_PALMTX_PCMCIA_POWER1, 0);
-	if (ret)
-		goto err2;
-
-	ret = gpio_request(GPIO_NR_PALMTX_PCMCIA_POWER2, "PCMCIA PWR2");
-	if (ret)
-		goto err2;
-	ret = gpio_direction_output(GPIO_NR_PALMTX_PCMCIA_POWER2, 0);
-	if (ret)
-		goto err3;
-
-	ret = gpio_request(GPIO_NR_PALMTX_PCMCIA_RESET, "PCMCIA RST");
-	if (ret)
-		goto err3;
-	ret = gpio_direction_output(GPIO_NR_PALMTX_PCMCIA_RESET, 1);
-	if (ret)
-		goto err4;
-
-	ret = gpio_request(GPIO_NR_PALMTX_PCMCIA_READY, "PCMCIA RDY");
-	if (ret)
-		goto err4;
-	ret = gpio_direction_input(GPIO_NR_PALMTX_PCMCIA_READY);
-	if (ret)
-		goto err5;
+	ret = gpio_request_array(palmtx_pcmcia_gpios,
+				ARRAY_SIZE(palmtx_pcmcia_gpios));
 
 	skt->socket.pci_irq = gpio_to_irq(GPIO_NR_PALMTX_PCMCIA_READY);
-	return 0;
 
-err5:
-	gpio_free(GPIO_NR_PALMTX_PCMCIA_READY);
-err4:
-	gpio_free(GPIO_NR_PALMTX_PCMCIA_RESET);
-err3:
-	gpio_free(GPIO_NR_PALMTX_PCMCIA_POWER2);
-err2:
-	gpio_free(GPIO_NR_PALMTX_PCMCIA_POWER1);
-err1:
 	return ret;
 }
 
 static void palmtx_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
 {
-	gpio_free(GPIO_NR_PALMTX_PCMCIA_READY);
-	gpio_free(GPIO_NR_PALMTX_PCMCIA_RESET);
-	gpio_free(GPIO_NR_PALMTX_PCMCIA_POWER2);
-	gpio_free(GPIO_NR_PALMTX_PCMCIA_POWER1);
+	gpio_free_array(palmtx_pcmcia_gpios, ARRAY_SIZE(palmtx_pcmcia_gpios));
 }
 
 static void palmtx_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
diff --git a/drivers/pcmcia/pxa2xx_vpac270.c b/drivers/pcmcia/pxa2xx_vpac270.c
index 55627eccee8e..435002dfc3ca 100644
--- a/drivers/pcmcia/pxa2xx_vpac270.c
+++ b/drivers/pcmcia/pxa2xx_vpac270.c
@@ -3,8 +3,7 @@
  *
  * Driver for Voipac PXA270 PCMCIA and CF sockets
  *
- * Copyright (C) 2010
- * Marek Vasut <marek.vasut@gmail.com>
+ * Copyright (C) 2010-2011 Marek Vasut <marek.vasut@gmail.com>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -22,6 +21,19 @@
 
 #include "soc_common.h"
 
+static struct gpio vpac270_pcmcia_gpios[] = {
+	{ GPIO84_VPAC270_PCMCIA_CD,	GPIOF_IN,	"PCMCIA Card Detect" },
+	{ GPIO35_VPAC270_PCMCIA_RDY,	GPIOF_IN,	"PCMCIA Ready" },
+	{ GPIO107_VPAC270_PCMCIA_PPEN,	GPIOF_INIT_LOW,	"PCMCIA PPEN" },
+	{ GPIO11_VPAC270_PCMCIA_RESET,	GPIOF_INIT_LOW,	"PCMCIA Reset" },
+};
+
+static struct gpio vpac270_cf_gpios[] = {
+	{ GPIO17_VPAC270_CF_CD,		GPIOF_IN,	"CF Card Detect" },
+	{ GPIO12_VPAC270_CF_RDY,	GPIOF_IN,	"CF Ready" },
+	{ GPIO16_VPAC270_CF_RESET,	GPIOF_INIT_LOW,	"CF Reset" },
+};
+
 static struct pcmcia_irqs cd_irqs[] = {
 	{
 		.sock = 0,
@@ -40,96 +52,34 @@ static int vpac270_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
 	int ret;
 
 	if (skt->nr == 0) {
-		ret = gpio_request(GPIO84_VPAC270_PCMCIA_CD, "PCMCIA CD");
-		if (ret)
-			goto err1;
-		ret = gpio_direction_input(GPIO84_VPAC270_PCMCIA_CD);
-		if (ret)
-			goto err2;
-
-		ret = gpio_request(GPIO35_VPAC270_PCMCIA_RDY, "PCMCIA RDY");
-		if (ret)
-			goto err2;
-		ret = gpio_direction_input(GPIO35_VPAC270_PCMCIA_RDY);
-		if (ret)
-			goto err3;
-
-		ret = gpio_request(GPIO107_VPAC270_PCMCIA_PPEN, "PCMCIA PPEN");
-		if (ret)
-			goto err3;
-		ret = gpio_direction_output(GPIO107_VPAC270_PCMCIA_PPEN, 0);
-		if (ret)
-			goto err4;
-
-		ret = gpio_request(GPIO11_VPAC270_PCMCIA_RESET, "PCMCIA RESET");
-		if (ret)
-			goto err4;
-		ret = gpio_direction_output(GPIO11_VPAC270_PCMCIA_RESET, 0);
-		if (ret)
-			goto err5;
+		ret = gpio_request_array(vpac270_pcmcia_gpios,
+				ARRAY_SIZE(vpac270_pcmcia_gpios));
 
 		skt->socket.pci_irq = gpio_to_irq(GPIO35_VPAC270_PCMCIA_RDY);
 
-		return soc_pcmcia_request_irqs(skt, &cd_irqs[0], 1);
-
-err5:
-		gpio_free(GPIO11_VPAC270_PCMCIA_RESET);
-err4:
-		gpio_free(GPIO107_VPAC270_PCMCIA_PPEN);
-err3:
-		gpio_free(GPIO35_VPAC270_PCMCIA_RDY);
-err2:
-		gpio_free(GPIO84_VPAC270_PCMCIA_CD);
-err1:
-		return ret;
-
+		if (!ret)
+			ret = soc_pcmcia_request_irqs(skt, &cd_irqs[0], 1);
 	} else {
-		ret = gpio_request(GPIO17_VPAC270_CF_CD, "CF CD");
-		if (ret)
-			goto err6;
-		ret = gpio_direction_input(GPIO17_VPAC270_CF_CD);
-		if (ret)
-			goto err7;
-
-		ret = gpio_request(GPIO12_VPAC270_CF_RDY, "CF RDY");
-		if (ret)
-			goto err7;
-		ret = gpio_direction_input(GPIO12_VPAC270_CF_RDY);
-		if (ret)
-			goto err8;
-
-		ret = gpio_request(GPIO16_VPAC270_CF_RESET, "CF RESET");
-		if (ret)
-			goto err8;
-		ret = gpio_direction_output(GPIO16_VPAC270_CF_RESET, 0);
-		if (ret)
-			goto err9;
+		ret = gpio_request_array(vpac270_cf_gpios,
+				ARRAY_SIZE(vpac270_cf_gpios));
 
 		skt->socket.pci_irq = gpio_to_irq(GPIO12_VPAC270_CF_RDY);
 
-		return soc_pcmcia_request_irqs(skt, &cd_irqs[1], 1);
-
-err9:
-		gpio_free(GPIO16_VPAC270_CF_RESET);
-err8:
-		gpio_free(GPIO12_VPAC270_CF_RDY);
-err7:
-		gpio_free(GPIO17_VPAC270_CF_CD);
-err6:
-		return ret;
-
+		if (!ret)
+			ret = soc_pcmcia_request_irqs(skt, &cd_irqs[1], 1);
 	}
+
+	return ret;
 }
 
 static void vpac270_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
 {
-	gpio_free(GPIO11_VPAC270_PCMCIA_RESET);
-	gpio_free(GPIO107_VPAC270_PCMCIA_PPEN);
-	gpio_free(GPIO35_VPAC270_PCMCIA_RDY);
-	gpio_free(GPIO84_VPAC270_PCMCIA_CD);
-	gpio_free(GPIO16_VPAC270_CF_RESET);
-	gpio_free(GPIO12_VPAC270_CF_RDY);
-	gpio_free(GPIO17_VPAC270_CF_CD);
+	if (skt->nr == 0)
+		gpio_request_array(vpac270_pcmcia_gpios,
+					ARRAY_SIZE(vpac270_pcmcia_gpios));
+	else
+		gpio_request_array(vpac270_cf_gpios,
+					ARRAY_SIZE(vpac270_cf_gpios));
 }
 
 static void vpac270_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
diff --git a/drivers/pcmcia/sa1100_nanoengine.c b/drivers/pcmcia/sa1100_nanoengine.c
index 3d2652e2f5ae..93b9c9ba57c3 100644
--- a/drivers/pcmcia/sa1100_nanoengine.c
+++ b/drivers/pcmcia/sa1100_nanoengine.c
@@ -86,7 +86,7 @@ static int nanoengine_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
 	GPDR &= ~nano_skts[i].input_pins;
 	GPDR |= nano_skts[i].output_pins;
 	GPCR = nano_skts[i].clear_outputs;
-	set_irq_type(nano_skts[i].transition_pins, IRQ_TYPE_EDGE_BOTH);
+	irq_set_irq_type(nano_skts[i].transition_pins, IRQ_TYPE_EDGE_BOTH);
 	skt->socket.pci_irq = nano_skts[i].pci_irq;
 
 	return soc_pcmcia_request_irqs(skt,
diff --git a/drivers/pcmcia/soc_common.c b/drivers/pcmcia/soc_common.c
index 5a9a392eacdf..768f9572a8c8 100644
--- a/drivers/pcmcia/soc_common.c
+++ b/drivers/pcmcia/soc_common.c
@@ -155,11 +155,11 @@ static int soc_common_pcmcia_config_skt(
 		 */
 		if (skt->irq_state != 1 && state->io_irq) {
 			skt->irq_state = 1;
-			set_irq_type(skt->socket.pci_irq,
-				IRQ_TYPE_EDGE_FALLING);
+			irq_set_irq_type(skt->socket.pci_irq,
+					 IRQ_TYPE_EDGE_FALLING);
 		} else if (skt->irq_state == 1 && state->io_irq == 0) {
 			skt->irq_state = 0;
-			set_irq_type(skt->socket.pci_irq, IRQ_TYPE_NONE);
+			irq_set_irq_type(skt->socket.pci_irq, IRQ_TYPE_NONE);
 		}
 
 		skt->cs_state = *state;
@@ -537,7 +537,7 @@ int soc_pcmcia_request_irqs(struct soc_pcmcia_socket *skt,
 				  IRQF_DISABLED, irqs[i].str, skt);
 		if (res)
 			break;
-		set_irq_type(irqs[i].irq, IRQ_TYPE_NONE);
+		irq_set_irq_type(irqs[i].irq, IRQ_TYPE_NONE);
 	}
 
 	if (res) {
@@ -570,7 +570,7 @@ void soc_pcmcia_disable_irqs(struct soc_pcmcia_socket *skt,
 
 	for (i = 0; i < nr; i++)
 		if (irqs[i].sock == skt->nr)
-			set_irq_type(irqs[i].irq, IRQ_TYPE_NONE);
+			irq_set_irq_type(irqs[i].irq, IRQ_TYPE_NONE);
 }
 EXPORT_SYMBOL(soc_pcmcia_disable_irqs);
 
@@ -581,8 +581,8 @@ void soc_pcmcia_enable_irqs(struct soc_pcmcia_socket *skt,
 
 	for (i = 0; i < nr; i++)
 		if (irqs[i].sock == skt->nr) {
-			set_irq_type(irqs[i].irq, IRQ_TYPE_EDGE_RISING);
-			set_irq_type(irqs[i].irq, IRQ_TYPE_EDGE_BOTH);
+			irq_set_irq_type(irqs[i].irq, IRQ_TYPE_EDGE_RISING);
+			irq_set_irq_type(irqs[i].irq, IRQ_TYPE_EDGE_BOTH);
 		}
 }
 EXPORT_SYMBOL(soc_pcmcia_enable_irqs);
diff --git a/drivers/pcmcia/ti113x.h b/drivers/pcmcia/ti113x.h
index 9ffa97d0b16c..a71789486cdf 100644
--- a/drivers/pcmcia/ti113x.h
+++ b/drivers/pcmcia/ti113x.h
@@ -691,7 +691,7 @@ static int ti12xx_2nd_slot_empty(struct yenta_socket *socket)
 		/*
 		 * those are either single or dual slot CB with additional functions
 		 * like 1394, smartcard reader, etc. check the TIEALL flag for them
-		 * the TIEALL flag binds the IRQ of all functions toghether.
+		 * the TIEALL flag binds the IRQ of all functions together.
 		 * we catch the single slot variants later.
 		 */
 		sysctl = config_readl(socket, TI113X_SYSTEM_CONTROL);
diff --git a/drivers/pcmcia/xxs1500_ss.c b/drivers/pcmcia/xxs1500_ss.c
index 3b67a1b6a197..379f4218857d 100644
--- a/drivers/pcmcia/xxs1500_ss.c
+++ b/drivers/pcmcia/xxs1500_ss.c
@@ -274,7 +274,7 @@ static int __devinit xxs1500_pcmcia_probe(struct platform_device *pdev)
 	 * edge detector.
 	 */
 	irq = gpio_to_irq(GPIO_CDA);
-	set_irq_type(irq, IRQ_TYPE_EDGE_BOTH);
+	irq_set_irq_type(irq, IRQ_TYPE_EDGE_BOTH);
 	ret = request_irq(irq, cdirq, 0, "pcmcia_carddetect", sock);
 	if (ret) {
 		dev_err(&pdev->dev, "cannot setup cd irq\n");
diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
index 222dfb737b11..2ee442c2a5db 100644
--- a/drivers/platform/x86/Kconfig
+++ b/drivers/platform/x86/Kconfig
@@ -101,6 +101,19 @@ config DELL_WMI
 	  To compile this driver as a module, choose M here: the module will
 	  be called dell-wmi.
 
+config DELL_WMI_AIO
+	tristate "WMI Hotkeys for Dell All-In-One series"
+	depends on ACPI_WMI
+	depends on INPUT
+	select INPUT_SPARSEKMAP
+	---help---
+	  Say Y here if you want to support WMI-based hotkeys on Dell
+	  All-In-One machines.
+
+	  To compile this driver as a module, choose M here: the module will
+	  be called dell-wmi.
+
+
 config FUJITSU_LAPTOP
 	tristate "Fujitsu Laptop Extras"
 	depends on ACPI
@@ -438,23 +451,53 @@ config EEEPC_LAPTOP
 	  Bluetooth, backlight and allows powering on/off some other
 	  devices.
 
-	  If you have an Eee PC laptop, say Y or M here.
+	  If you have an Eee PC laptop, say Y or M here. If this driver
+	  doesn't work on your Eee PC, try eeepc-wmi instead.
 
-config EEEPC_WMI
-	tristate "Eee PC WMI Hotkey Driver (EXPERIMENTAL)"
+config ASUS_WMI
+	tristate "ASUS WMI Driver (EXPERIMENTAL)"
 	depends on ACPI_WMI
 	depends on INPUT
+	depends on HWMON
 	depends on EXPERIMENTAL
 	depends on BACKLIGHT_CLASS_DEVICE
 	depends on RFKILL || RFKILL = n
+	depends on HOTPLUG_PCI
 	select INPUT_SPARSEKMAP
 	select LEDS_CLASS
 	select NEW_LEDS
 	---help---
-	  Say Y here if you want to support WMI-based hotkeys on Eee PC laptops.
+	  Say Y here if you have a WMI aware Asus laptop (like Eee PCs or new
+	  Asus Notebooks).
 
 	  To compile this driver as a module, choose M here: the module will
-	  be called eeepc-wmi.
+	  be called asus-wmi.
+
+config ASUS_NB_WMI
+	tristate "Asus Notebook WMI Driver (EXPERIMENTAL)"
+	depends on ASUS_WMI
+	---help---
+	  This is a driver for newer Asus notebooks. It adds extra features
+	  like wireless radio and bluetooth control, leds, hotkeys, backlight...
+
+	  For more informations, see
+	  <file:Documentation/ABI/testing/sysfs-platform-asus-wmi>
+
+	  If you have an ACPI-WMI compatible Asus Notebook, say Y or M
+	  here.
+
+config EEEPC_WMI
+	tristate "Eee PC WMI Driver (EXPERIMENTAL)"
+	depends on ASUS_WMI
+	---help---
+	  This is a driver for newer Eee PC laptops. It adds extra features
+	  like wireless radio and bluetooth control, leds, hotkeys, backlight...
+
+	  For more informations, see
+	  <file:Documentation/ABI/testing/sysfs-platform-asus-wmi>
+
+	  If you have an ACPI-WMI compatible Eee PC laptop (>= 1000), say Y or M
+	  here.
 
 config ACPI_WMI
 	tristate "WMI"
@@ -616,6 +659,21 @@ config GPIO_INTEL_PMIC
 	  Say Y here to support GPIO via the SCU IPC interface
 	  on Intel MID platforms.
 
+config INTEL_MID_POWER_BUTTON
+	tristate "power button driver for Intel MID platforms"
+	depends on INTEL_SCU_IPC && INPUT
+	help
+	  This driver handles the power button on the Intel MID platforms.
+
+	  If unsure, say N.
+
+config INTEL_MFLD_THERMAL
+       tristate "Thermal driver for Intel Medfield platform"
+       depends on INTEL_SCU_IPC && THERMAL
+       help
+         Say Y here to enable thermal driver support for the  Intel Medfield
+         platform.
+
 config RAR_REGISTER
 	bool "Restricted Access Region Register Driver"
 	depends on PCI && X86_MRST
@@ -672,4 +730,26 @@ config XO1_RFKILL
 	  Support for enabling/disabling the WLAN interface on the OLPC XO-1
 	  laptop.
 
+config XO15_EBOOK
+	tristate "OLPC XO-1.5 ebook switch"
+	depends on ACPI && INPUT
+	---help---
+	  Support for the ebook switch on the OLPC XO-1.5 laptop.
+
+	  This switch is triggered as the screen is rotated and folded down to
+	  convert the device into ebook form.
+
+config SAMSUNG_LAPTOP
+	tristate "Samsung Laptop driver"
+	depends on RFKILL && BACKLIGHT_CLASS_DEVICE && X86
+	---help---
+	  This module implements a driver for a wide range of different
+	  Samsung laptops.  It offers control over the different
+	  function keys, wireless LED, LCD backlight level, and
+	  sometimes provides a "performance_control" sysfs file to allow
+	  the performance level of the laptop to be changed.
+
+	  To compile this driver as a module, choose M here: the module
+	  will be called samsung-laptop.
+
 endif # X86_PLATFORM_DEVICES
diff --git a/drivers/platform/x86/Makefile b/drivers/platform/x86/Makefile
index 299aefb3e74c..029e8861d086 100644
--- a/drivers/platform/x86/Makefile
+++ b/drivers/platform/x86/Makefile
@@ -3,6 +3,8 @@
 # x86 Platform-Specific Drivers
 #
 obj-$(CONFIG_ASUS_LAPTOP)	+= asus-laptop.o
+obj-$(CONFIG_ASUS_WMI)		+= asus-wmi.o
+obj-$(CONFIG_ASUS_NB_WMI)	+= asus-nb-wmi.o
 obj-$(CONFIG_EEEPC_LAPTOP)	+= eeepc-laptop.o
 obj-$(CONFIG_EEEPC_WMI)		+= eeepc-wmi.o
 obj-$(CONFIG_MSI_LAPTOP)	+= msi-laptop.o
@@ -10,6 +12,7 @@ obj-$(CONFIG_ACPI_CMPC)		+= classmate-laptop.o
 obj-$(CONFIG_COMPAL_LAPTOP)	+= compal-laptop.o
 obj-$(CONFIG_DELL_LAPTOP)	+= dell-laptop.o
 obj-$(CONFIG_DELL_WMI)		+= dell-wmi.o
+obj-$(CONFIG_DELL_WMI_AIO)	+= dell-wmi-aio.o
 obj-$(CONFIG_ACER_WMI)		+= acer-wmi.o
 obj-$(CONFIG_ACERHDF)		+= acerhdf.o
 obj-$(CONFIG_HP_ACCEL)		+= hp_accel.o
@@ -29,9 +32,13 @@ obj-$(CONFIG_TOPSTAR_LAPTOP)	+= topstar-laptop.o
 obj-$(CONFIG_ACPI_TOSHIBA)	+= toshiba_acpi.o
 obj-$(CONFIG_TOSHIBA_BT_RFKILL)	+= toshiba_bluetooth.o
 obj-$(CONFIG_INTEL_SCU_IPC)	+= intel_scu_ipc.o
-obj-$(CONFIG_INTEL_SCU_IPC_UTIL)+= intel_scu_ipcutil.o
+obj-$(CONFIG_INTEL_SCU_IPC_UTIL) += intel_scu_ipcutil.o
+obj-$(CONFIG_INTEL_MFLD_THERMAL) += intel_mid_thermal.o
 obj-$(CONFIG_RAR_REGISTER)	+= intel_rar_register.o
 obj-$(CONFIG_INTEL_IPS)		+= intel_ips.o
 obj-$(CONFIG_GPIO_INTEL_PMIC)	+= intel_pmic_gpio.o
 obj-$(CONFIG_XO1_RFKILL)	+= xo1-rfkill.o
+obj-$(CONFIG_XO15_EBOOK)	+= xo15-ebook.o
 obj-$(CONFIG_IBM_RTL)		+= ibm_rtl.o
+obj-$(CONFIG_SAMSUNG_LAPTOP)	+= samsung-laptop.o
+obj-$(CONFIG_INTEL_MFLD_THERMAL)	+= intel_mid_thermal.o
diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c
index c9784705f6ac..5ea6c3477d17 100644
--- a/drivers/platform/x86/acer-wmi.c
+++ b/drivers/platform/x86/acer-wmi.c
@@ -22,6 +22,8 @@
  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/init.h>
@@ -46,12 +48,6 @@ MODULE_AUTHOR("Carlos Corbacho");
 MODULE_DESCRIPTION("Acer Laptop WMI Extras Driver");
 MODULE_LICENSE("GPL");
 
-#define ACER_LOGPREFIX "acer-wmi: "
-#define ACER_ERR KERN_ERR ACER_LOGPREFIX
-#define ACER_NOTICE KERN_NOTICE ACER_LOGPREFIX
-#define ACER_INFO KERN_INFO ACER_LOGPREFIX
-#define ACER_WARNING KERN_WARNING ACER_LOGPREFIX
-
 /*
  * Magic Number
  * Meaning is unknown - this number is required for writing to ACPI for AMW0
@@ -84,7 +80,7 @@ MODULE_LICENSE("GPL");
 #define AMW0_GUID1		"67C3371D-95A3-4C37-BB61-DD47B491DAAB"
 #define AMW0_GUID2		"431F16ED-0C2B-444C-B267-27DEB140CF9C"
 #define WMID_GUID1		"6AF4F258-B401-42FD-BE91-3D4AC2D7C0D3"
-#define WMID_GUID2		"95764E09-FB56-4e83-B31A-37761F60994A"
+#define WMID_GUID2		"95764E09-FB56-4E83-B31A-37761F60994A"
 #define WMID_GUID3		"61EF69EA-865C-4BC3-A502-A0DEBA0CB531"
 
 /*
@@ -93,7 +89,7 @@ MODULE_LICENSE("GPL");
 #define ACERWMID_EVENT_GUID "676AA15E-6A47-4D9F-A2CC-1E6D18D14026"
 
 MODULE_ALIAS("wmi:67C3371D-95A3-4C37-BB61-DD47B491DAAB");
-MODULE_ALIAS("wmi:6AF4F258-B401-42fd-BE91-3D4AC2D7C0D3");
+MODULE_ALIAS("wmi:6AF4F258-B401-42Fd-BE91-3D4AC2D7C0D3");
 MODULE_ALIAS("wmi:676AA15E-6A47-4D9F-A2CC-1E6D18D14026");
 
 enum acer_wmi_event_ids {
@@ -108,7 +104,7 @@ static const struct key_entry acer_wmi_keymap[] = {
 	{KE_KEY, 0x23, {KEY_PROG3} },    /* P_Key */
 	{KE_KEY, 0x24, {KEY_PROG4} },    /* Social networking_Key */
 	{KE_KEY, 0x64, {KEY_SWITCHVIDEOMODE} },	/* Display Switch */
-	{KE_KEY, 0x82, {KEY_F22} },      /* Touch Pad On/Off */
+	{KE_KEY, 0x82, {KEY_TOUCHPAD_TOGGLE} },	/* Touch Pad On/Off */
 	{KE_END, 0}
 };
 
@@ -221,6 +217,7 @@ struct acer_debug {
 static struct rfkill *wireless_rfkill;
 static struct rfkill *bluetooth_rfkill;
 static struct rfkill *threeg_rfkill;
+static bool rfkill_inited;
 
 /* Each low-level interface must define at least some of the following */
 struct wmi_interface {
@@ -845,7 +842,7 @@ static void type_aa_dmi_decode(const struct dmi_header *header, void *dummy)
 	has_type_aa = true;
 	type_aa = (struct hotkey_function_type_aa *) header;
 
-	printk(ACER_INFO "Function bitmap for Communication Button: 0x%x\n",
+	pr_info("Function bitmap for Communication Button: 0x%x\n",
 		type_aa->commun_func_bitmap);
 
 	if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_WIRELESS)
@@ -991,6 +988,7 @@ static int __devinit acer_led_init(struct device *dev)
 
 static void acer_led_exit(void)
 {
+	set_u32(LED_OFF, ACER_CAP_MAILLED);
 	led_classdev_unregister(&mail_led);
 }
 
@@ -1036,7 +1034,7 @@ static int __devinit acer_backlight_init(struct device *dev)
 	bd = backlight_device_register("acer-wmi", dev, NULL, &acer_bl_ops,
 				       &props);
 	if (IS_ERR(bd)) {
-		printk(ACER_ERR "Could not register Acer backlight device\n");
+		pr_err("Could not register Acer backlight device\n");
 		acer_backlight_device = NULL;
 		return PTR_ERR(bd);
 	}
@@ -1083,8 +1081,7 @@ static acpi_status wmid3_get_device_status(u32 *value, u16 device)
 		return AE_ERROR;
 	}
 	if (obj->buffer.length != 8) {
-		printk(ACER_WARNING "Unknown buffer length %d\n",
-			obj->buffer.length);
+		pr_warning("Unknown buffer length %d\n", obj->buffer.length);
 		kfree(obj);
 		return AE_ERROR;
 	}
@@ -1093,7 +1090,7 @@ static acpi_status wmid3_get_device_status(u32 *value, u16 device)
 	kfree(obj);
 
 	if (return_value.error_code || return_value.ec_return_value)
-		printk(ACER_WARNING "Get Device Status failed: "
+		pr_warning("Get Device Status failed: "
 			"0x%x - 0x%x\n", return_value.error_code,
 			return_value.ec_return_value);
 	else
@@ -1161,9 +1158,13 @@ static int acer_rfkill_set(void *data, bool blocked)
 {
 	acpi_status status;
 	u32 cap = (unsigned long)data;
-	status = set_u32(!blocked, cap);
-	if (ACPI_FAILURE(status))
-		return -ENODEV;
+
+	if (rfkill_inited) {
+		status = set_u32(!blocked, cap);
+		if (ACPI_FAILURE(status))
+			return -ENODEV;
+	}
+
 	return 0;
 }
 
@@ -1187,14 +1188,16 @@ static struct rfkill *acer_rfkill_register(struct device *dev,
 		return ERR_PTR(-ENOMEM);
 
 	status = get_device_status(&state, cap);
-	if (ACPI_SUCCESS(status))
-		rfkill_init_sw_state(rfkill_dev, !state);
 
 	err = rfkill_register(rfkill_dev);
 	if (err) {
 		rfkill_destroy(rfkill_dev);
 		return ERR_PTR(err);
 	}
+
+	if (ACPI_SUCCESS(status))
+		rfkill_set_sw_state(rfkill_dev, !state);
+
 	return rfkill_dev;
 }
 
@@ -1229,14 +1232,19 @@ static int acer_rfkill_init(struct device *dev)
 		}
 	}
 
-	schedule_delayed_work(&acer_rfkill_work, round_jiffies_relative(HZ));
+	rfkill_inited = true;
+
+	if (ec_raw_mode || !wmi_has_guid(ACERWMID_EVENT_GUID))
+		schedule_delayed_work(&acer_rfkill_work,
+			round_jiffies_relative(HZ));
 
 	return 0;
 }
 
 static void acer_rfkill_exit(void)
 {
-	cancel_delayed_work_sync(&acer_rfkill_work);
+	if (ec_raw_mode || !wmi_has_guid(ACERWMID_EVENT_GUID))
+		cancel_delayed_work_sync(&acer_rfkill_work);
 
 	rfkill_unregister(wireless_rfkill);
 	rfkill_destroy(wireless_rfkill);
@@ -1309,7 +1317,7 @@ static void acer_wmi_notify(u32 value, void *context)
 
 	status = wmi_get_event_data(value, &response);
 	if (status != AE_OK) {
-		printk(ACER_WARNING "bad event status 0x%x\n", status);
+		pr_warning("bad event status 0x%x\n", status);
 		return;
 	}
 
@@ -1318,14 +1326,12 @@ static void acer_wmi_notify(u32 value, void *context)
 	if (!obj)
 		return;
 	if (obj->type != ACPI_TYPE_BUFFER) {
-		printk(ACER_WARNING "Unknown response received %d\n",
-			obj->type);
+		pr_warning("Unknown response received %d\n", obj->type);
 		kfree(obj);
 		return;
 	}
 	if (obj->buffer.length != 8) {
-		printk(ACER_WARNING "Unknown buffer length %d\n",
-			obj->buffer.length);
+		pr_warning("Unknown buffer length %d\n", obj->buffer.length);
 		kfree(obj);
 		return;
 	}
@@ -1335,13 +1341,26 @@ static void acer_wmi_notify(u32 value, void *context)
 
 	switch (return_value.function) {
 	case WMID_HOTKEY_EVENT:
+		if (return_value.device_state) {
+			u16 device_state = return_value.device_state;
+			pr_debug("deivces states: 0x%x\n", device_state);
+			if (has_cap(ACER_CAP_WIRELESS))
+				rfkill_set_sw_state(wireless_rfkill,
+				!(device_state & ACER_WMID3_GDS_WIRELESS));
+			if (has_cap(ACER_CAP_BLUETOOTH))
+				rfkill_set_sw_state(bluetooth_rfkill,
+				!(device_state & ACER_WMID3_GDS_BLUETOOTH));
+			if (has_cap(ACER_CAP_THREEG))
+				rfkill_set_sw_state(threeg_rfkill,
+				!(device_state & ACER_WMID3_GDS_THREEG));
+		}
 		if (!sparse_keymap_report_event(acer_wmi_input_dev,
 				return_value.key_num, 1, true))
-			printk(ACER_WARNING "Unknown key number - 0x%x\n",
+			pr_warning("Unknown key number - 0x%x\n",
 				return_value.key_num);
 		break;
 	default:
-		printk(ACER_WARNING "Unknown function number - %d - %d\n",
+		pr_warning("Unknown function number - %d - %d\n",
 			return_value.function, return_value.key_num);
 		break;
 	}
@@ -1370,8 +1389,7 @@ wmid3_set_lm_mode(struct lm_input_params *params,
 		return AE_ERROR;
 	}
 	if (obj->buffer.length != 4) {
-		printk(ACER_WARNING "Unknown buffer length %d\n",
-		       obj->buffer.length);
+		pr_warning("Unknown buffer length %d\n", obj->buffer.length);
 		kfree(obj);
 		return AE_ERROR;
 	}
@@ -1396,11 +1414,11 @@ static int acer_wmi_enable_ec_raw(void)
 	status = wmid3_set_lm_mode(&params, &return_value);
 
 	if (return_value.error_code || return_value.ec_return_value)
-		printk(ACER_WARNING "Enabling EC raw mode failed: "
+		pr_warning("Enabling EC raw mode failed: "
 		       "0x%x - 0x%x\n", return_value.error_code,
 		       return_value.ec_return_value);
 	else
-		printk(ACER_INFO "Enabled EC raw mode");
+		pr_info("Enabled EC raw mode");
 
 	return status;
 }
@@ -1419,7 +1437,7 @@ static int acer_wmi_enable_lm(void)
 	status = wmid3_set_lm_mode(&params, &return_value);
 
 	if (return_value.error_code || return_value.ec_return_value)
-		printk(ACER_WARNING "Enabling Launch Manager failed: "
+		pr_warning("Enabling Launch Manager failed: "
 		       "0x%x - 0x%x\n", return_value.error_code,
 		       return_value.ec_return_value);
 
@@ -1553,6 +1571,7 @@ pm_message_t state)
 
 	if (has_cap(ACER_CAP_MAILLED)) {
 		get_u32(&value, ACER_CAP_MAILLED);
+		set_u32(LED_OFF, ACER_CAP_MAILLED);
 		data->mailled = value;
 	}
 
@@ -1580,6 +1599,17 @@ static int acer_platform_resume(struct platform_device *device)
 	return 0;
 }
 
+static void acer_platform_shutdown(struct platform_device *device)
+{
+	struct acer_data *data = &interface->data;
+
+	if (!data)
+		return;
+
+	if (has_cap(ACER_CAP_MAILLED))
+		set_u32(LED_OFF, ACER_CAP_MAILLED);
+}
+
 static struct platform_driver acer_platform_driver = {
 	.driver = {
 		.name = "acer-wmi",
@@ -1589,6 +1619,7 @@ static struct platform_driver acer_platform_driver = {
 	.remove = acer_platform_remove,
 	.suspend = acer_platform_suspend,
 	.resume = acer_platform_resume,
+	.shutdown = acer_platform_shutdown,
 };
 
 static struct platform_device *acer_platform_device;
@@ -1636,7 +1667,7 @@ static int create_debugfs(void)
 {
 	interface->debug.root = debugfs_create_dir("acer-wmi", NULL);
 	if (!interface->debug.root) {
-		printk(ACER_ERR "Failed to create debugfs directory");
+		pr_err("Failed to create debugfs directory");
 		return -ENOMEM;
 	}
 
@@ -1657,11 +1688,10 @@ static int __init acer_wmi_init(void)
 {
 	int err;
 
-	printk(ACER_INFO "Acer Laptop ACPI-WMI Extras\n");
+	pr_info("Acer Laptop ACPI-WMI Extras\n");
 
 	if (dmi_check_system(acer_blacklist)) {
-		printk(ACER_INFO "Blacklisted hardware detected - "
-				"not loading\n");
+		pr_info("Blacklisted hardware detected - not loading\n");
 		return -ENODEV;
 	}
 
@@ -1678,12 +1708,11 @@ static int __init acer_wmi_init(void)
 
 	if (wmi_has_guid(WMID_GUID2) && interface) {
 		if (ACPI_FAILURE(WMID_set_capabilities())) {
-			printk(ACER_ERR "Unable to detect available WMID "
-					"devices\n");
+			pr_err("Unable to detect available WMID devices\n");
 			return -ENODEV;
 		}
 	} else if (!wmi_has_guid(WMID_GUID2) && interface) {
-		printk(ACER_ERR "No WMID device detection method found\n");
+		pr_err("No WMID device detection method found\n");
 		return -ENODEV;
 	}
 
@@ -1691,8 +1720,7 @@ static int __init acer_wmi_init(void)
 		interface = &AMW0_interface;
 
 		if (ACPI_FAILURE(AMW0_set_capabilities())) {
-			printk(ACER_ERR "Unable to detect available AMW0 "
-					"devices\n");
+			pr_err("Unable to detect available AMW0 devices\n");
 			return -ENODEV;
 		}
 	}
@@ -1701,8 +1729,7 @@ static int __init acer_wmi_init(void)
 		AMW0_find_mailled();
 
 	if (!interface) {
-		printk(ACER_INFO "No or unsupported WMI interface, unable to "
-				"load\n");
+		pr_err("No or unsupported WMI interface, unable to load\n");
 		return -ENODEV;
 	}
 
@@ -1710,22 +1737,22 @@ static int __init acer_wmi_init(void)
 
 	if (acpi_video_backlight_support() && has_cap(ACER_CAP_BRIGHTNESS)) {
 		interface->capability &= ~ACER_CAP_BRIGHTNESS;
-		printk(ACER_INFO "Brightness must be controlled by "
+		pr_info("Brightness must be controlled by "
 		       "generic video driver\n");
 	}
 
 	if (wmi_has_guid(WMID_GUID3)) {
 		if (ec_raw_mode) {
 			if (ACPI_FAILURE(acer_wmi_enable_ec_raw())) {
-				printk(ACER_ERR "Cannot enable EC raw mode\n");
+				pr_err("Cannot enable EC raw mode\n");
 				return -ENODEV;
 			}
 		} else if (ACPI_FAILURE(acer_wmi_enable_lm())) {
-			printk(ACER_ERR "Cannot enable Launch Manager mode\n");
+			pr_err("Cannot enable Launch Manager mode\n");
 			return -ENODEV;
 		}
 	} else if (ec_raw_mode) {
-		printk(ACER_INFO "No WMID EC raw mode enable method\n");
+		pr_info("No WMID EC raw mode enable method\n");
 	}
 
 	if (wmi_has_guid(ACERWMID_EVENT_GUID)) {
@@ -1736,7 +1763,7 @@ static int __init acer_wmi_init(void)
 
 	err = platform_driver_register(&acer_platform_driver);
 	if (err) {
-		printk(ACER_ERR "Unable to register platform driver.\n");
+		pr_err("Unable to register platform driver.\n");
 		goto error_platform_register;
 	}
 
@@ -1791,7 +1818,7 @@ static void __exit acer_wmi_exit(void)
 	platform_device_unregister(acer_platform_device);
 	platform_driver_unregister(&acer_platform_driver);
 
-	printk(ACER_INFO "Acer Laptop WMI Extras unloaded\n");
+	pr_info("Acer Laptop WMI Extras unloaded\n");
 	return;
 }
 
diff --git a/drivers/platform/x86/asus-laptop.c b/drivers/platform/x86/asus-laptop.c
index 5a6f7d7575d6..c53b3ff7978a 100644
--- a/drivers/platform/x86/asus-laptop.c
+++ b/drivers/platform/x86/asus-laptop.c
@@ -29,7 +29,7 @@
  *  John Belmonte  - ACPI code for Toshiba laptop was a good starting point.
  *  Eric Burghard  - LED display support for W1N
  *  Josh Green     - Light Sens support
- *  Thomas Tuttle  - His first patch for led support was very helpfull
+ *  Thomas Tuttle  - His first patch for led support was very helpful
  *  Sam Lin        - GPS support
  */
 
@@ -50,6 +50,7 @@
 #include <linux/input/sparse-keymap.h>
 #include <linux/rfkill.h>
 #include <linux/slab.h>
+#include <linux/dmi.h>
 #include <acpi/acpi_drivers.h>
 #include <acpi/acpi_bus.h>
 
@@ -157,46 +158,9 @@ MODULE_PARM_DESC(wwan_status, "Set the wireless status on boot "
 #define METHOD_BRIGHTNESS_SET	"SPLV"
 #define METHOD_BRIGHTNESS_GET	"GPLV"
 
-/* Backlight */
-static acpi_handle lcd_switch_handle;
-static char *lcd_switch_paths[] = {
-  "\\_SB.PCI0.SBRG.EC0._Q10",	/* All new models */
-  "\\_SB.PCI0.ISA.EC0._Q10",	/* A1x */
-  "\\_SB.PCI0.PX40.ECD0._Q10",	/* L3C */
-  "\\_SB.PCI0.PX40.EC0.Q10",	/* M1A */
-  "\\_SB.PCI0.LPCB.EC0._Q10",	/* P30 */
-  "\\_SB.PCI0.LPCB.EC0._Q0E", /* P30/P35 */
-  "\\_SB.PCI0.PX40.Q10",	/* S1x */
-  "\\Q10"};		/* A2x, L2D, L3D, M2E */
-
 /* Display */
 #define METHOD_SWITCH_DISPLAY	"SDSP"
 
-static acpi_handle display_get_handle;
-static char *display_get_paths[] = {
-  /* A6B, A6K A6R A7D F3JM L4R M6R A3G M6A M6V VX-1 V6J V6V W3Z */
-  "\\_SB.PCI0.P0P1.VGA.GETD",
-  /* A3E A4K, A4D A4L A6J A7J A8J Z71V M9V S5A M5A z33A W1Jc W2V G1 */
-  "\\_SB.PCI0.P0P2.VGA.GETD",
-  /* A6V A6Q */
-  "\\_SB.PCI0.P0P3.VGA.GETD",
-  /* A6T, A6M */
-  "\\_SB.PCI0.P0PA.VGA.GETD",
-  /* L3C */
-  "\\_SB.PCI0.PCI1.VGAC.NMAP",
-  /* Z96F */
-  "\\_SB.PCI0.VGA.GETD",
-  /* A2D */
-  "\\ACTD",
-  /* A4G Z71A W1N W5A W5F M2N M3N M5N M6N S1N S5N */
-  "\\ADVG",
-  /* P30 */
-  "\\DNXT",
-  /* A2H D1 L2D L3D L3H L2E L5D L5C M1A M2E L4L W3V */
-  "\\INFB",
-  /* A3F A6F A3N A3L M6N W3N W6A */
-  "\\SSTE"};
-
 #define METHOD_ALS_CONTROL	"ALSC" /* Z71A Z71V */
 #define METHOD_ALS_LEVEL	"ALSL" /* Z71A Z71V */
 
@@ -246,7 +210,6 @@ struct asus_laptop {
 
 	int wireless_status;
 	bool have_rsts;
-	int lcd_state;
 
 	struct rfkill *gps_rfkill;
 
@@ -559,48 +522,6 @@ error:
 /*
  * Backlight device
  */
-static int asus_lcd_status(struct asus_laptop *asus)
-{
-	return asus->lcd_state;
-}
-
-static int asus_lcd_set(struct asus_laptop *asus, int value)
-{
-	int lcd = 0;
-	acpi_status status = 0;
-
-	lcd = !!value;
-
-	if (lcd == asus_lcd_status(asus))
-		return 0;
-
-	if (!lcd_switch_handle)
-		return -ENODEV;
-
-	status = acpi_evaluate_object(lcd_switch_handle,
-				      NULL, NULL, NULL);
-
-	if (ACPI_FAILURE(status)) {
-		pr_warning("Error switching LCD\n");
-		return -ENODEV;
-	}
-
-	asus->lcd_state = lcd;
-	return 0;
-}
-
-static void lcd_blank(struct asus_laptop *asus, int blank)
-{
-	struct backlight_device *bd = asus->backlight_device;
-
-	asus->lcd_state = (blank == FB_BLANK_UNBLANK);
-
-	if (bd) {
-		bd->props.power = blank;
-		backlight_update_status(bd);
-	}
-}
-
 static int asus_read_brightness(struct backlight_device *bd)
 {
 	struct asus_laptop *asus = bl_get_data(bd);
@@ -628,16 +549,9 @@ static int asus_set_brightness(struct backlight_device *bd, int value)
 
 static int update_bl_status(struct backlight_device *bd)
 {
-	struct asus_laptop *asus = bl_get_data(bd);
-	int rv;
 	int value = bd->props.brightness;
 
-	rv = asus_set_brightness(bd, value);
-	if (rv)
-		return rv;
-
-	value = (bd->props.power == FB_BLANK_UNBLANK) ? 1 : 0;
-	return asus_lcd_set(asus, value);
+	return asus_set_brightness(bd, value);
 }
 
 static const struct backlight_ops asusbl_ops = {
@@ -661,8 +575,7 @@ static int asus_backlight_init(struct asus_laptop *asus)
 	struct backlight_properties props;
 
 	if (acpi_check_handle(asus->handle, METHOD_BRIGHTNESS_GET, NULL) ||
-	    acpi_check_handle(asus->handle, METHOD_BRIGHTNESS_SET, NULL) ||
-	    !lcd_switch_handle)
+	    acpi_check_handle(asus->handle, METHOD_BRIGHTNESS_SET, NULL))
 		return 0;
 
 	memset(&props, 0, sizeof(struct backlight_properties));
@@ -971,41 +884,6 @@ static void asus_set_display(struct asus_laptop *asus, int value)
 	return;
 }
 
-static int read_display(struct asus_laptop *asus)
-{
-	unsigned long long value = 0;
-	acpi_status rv = AE_OK;
-
-	/*
-	 * In most of the case, we know how to set the display, but sometime
-	 * we can't read it
-	 */
-	if (display_get_handle) {
-		rv = acpi_evaluate_integer(display_get_handle, NULL,
-					   NULL, &value);
-		if (ACPI_FAILURE(rv))
-			pr_warning("Error reading display status\n");
-	}
-
-	value &= 0x0F; /* needed for some models, shouldn't hurt others */
-
-	return value;
-}
-
-/*
- * Now, *this* one could be more user-friendly, but so far, no-one has
- * complained. The significance of bits is the same as in store_disp()
- */
-static ssize_t show_disp(struct device *dev,
-			 struct device_attribute *attr, char *buf)
-{
-	struct asus_laptop *asus = dev_get_drvdata(dev);
-
-	if (!display_get_handle)
-		return -ENODEV;
-	return sprintf(buf, "%d\n", read_display(asus));
-}
-
 /*
  * Experimental support for display switching. As of now: 1 should activate
  * the LCD output, 2 should do for CRT, 4 for TV-Out and 8 for DVI.
@@ -1247,15 +1125,6 @@ static void asus_acpi_notify(struct acpi_device *device, u32 event)
 	struct asus_laptop *asus = acpi_driver_data(device);
 	u16 count;
 
-	/*
-	 * We need to tell the backlight device when the backlight power is
-	 * switched
-	 */
-	if (event == ATKD_LCD_ON)
-		lcd_blank(asus, FB_BLANK_UNBLANK);
-	else if (event == ATKD_LCD_OFF)
-		lcd_blank(asus, FB_BLANK_POWERDOWN);
-
 	/* TODO Find a better way to handle events count. */
 	count = asus->event_count[event % 128]++;
 	acpi_bus_generate_proc_event(asus->device, event, count);
@@ -1282,7 +1151,7 @@ static DEVICE_ATTR(bluetooth, S_IRUGO | S_IWUSR,
 		   show_bluetooth, store_bluetooth);
 static DEVICE_ATTR(wimax, S_IRUGO | S_IWUSR, show_wimax, store_wimax);
 static DEVICE_ATTR(wwan, S_IRUGO | S_IWUSR, show_wwan, store_wwan);
-static DEVICE_ATTR(display, S_IRUGO | S_IWUSR, show_disp, store_disp);
+static DEVICE_ATTR(display, S_IWUSR, NULL, store_disp);
 static DEVICE_ATTR(ledd, S_IRUGO | S_IWUSR, show_ledd, store_ledd);
 static DEVICE_ATTR(ls_level, S_IRUGO | S_IWUSR, show_lslvl, store_lslvl);
 static DEVICE_ATTR(ls_switch, S_IRUGO | S_IWUSR, show_lssw, store_lssw);
@@ -1393,26 +1262,6 @@ static struct platform_driver platform_driver = {
 	}
 };
 
-static int asus_handle_init(char *name, acpi_handle * handle,
-			    char **paths, int num_paths)
-{
-	int i;
-	acpi_status status;
-
-	for (i = 0; i < num_paths; i++) {
-		status = acpi_get_handle(NULL, paths[i], handle);
-		if (ACPI_SUCCESS(status))
-			return 0;
-	}
-
-	*handle = NULL;
-	return -ENODEV;
-}
-
-#define ASUS_HANDLE_INIT(object)					\
-	asus_handle_init(#object, &object##_handle, object##_paths,	\
-			 ARRAY_SIZE(object##_paths))
-
 /*
  * This function is used to initialize the context with right values. In this
  * method, we can make all the detection we want, and modify the asus_laptop
@@ -1498,10 +1347,6 @@ static int asus_laptop_get_info(struct asus_laptop *asus)
 	if (!acpi_check_handle(asus->handle, METHOD_WL_STATUS, NULL))
 		asus->have_rsts = true;
 
-	/* Scheduled for removal */
-	ASUS_HANDLE_INIT(lcd_switch);
-	ASUS_HANDLE_INIT(display_get);
-
 	kfree(model);
 
 	return AE_OK;
@@ -1553,10 +1398,23 @@ static int __devinit asus_acpi_init(struct asus_laptop *asus)
 		asus_als_level(asus, asus->light_level);
 	}
 
-	asus->lcd_state = 1; /* LCD should be on when the module load */
 	return result;
 }
 
+static void __devinit asus_dmi_check(void)
+{
+	const char *model;
+
+	model = dmi_get_system_info(DMI_PRODUCT_NAME);
+	if (!model)
+		return;
+
+	/* On L1400B WLED control the sound card, don't mess with it ... */
+	if (strncmp(model, "L1400B", 6) == 0) {
+		wlan_status = -1;
+	}
+}
+
 static bool asus_device_present;
 
 static int __devinit asus_acpi_add(struct acpi_device *device)
@@ -1575,6 +1433,8 @@ static int __devinit asus_acpi_add(struct acpi_device *device)
 	device->driver_data = asus;
 	asus->device = device;
 
+	asus_dmi_check();
+
 	result = asus_acpi_init(asus);
 	if (result)
 		goto fail_platform;
diff --git a/drivers/platform/x86/asus-nb-wmi.c b/drivers/platform/x86/asus-nb-wmi.c
new file mode 100644
index 000000000000..0580d99b0798
--- /dev/null
+++ b/drivers/platform/x86/asus-nb-wmi.c
@@ -0,0 +1,98 @@
+/*
+ * Asus Notebooks WMI hotkey driver
+ *
+ * Copyright(C) 2010 Corentin Chary <corentin.chary@gmail.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/input/sparse-keymap.h>
+
+#include "asus-wmi.h"
+
+#define	ASUS_NB_WMI_FILE	"asus-nb-wmi"
+
+MODULE_AUTHOR("Corentin Chary <corentincj@iksaif.net>");
+MODULE_DESCRIPTION("Asus Notebooks WMI Hotkey Driver");
+MODULE_LICENSE("GPL");
+
+#define ASUS_NB_WMI_EVENT_GUID	"0B3CBB35-E3C2-45ED-91C2-4C5A6D195D1C"
+
+MODULE_ALIAS("wmi:"ASUS_NB_WMI_EVENT_GUID);
+
+static const struct key_entry asus_nb_wmi_keymap[] = {
+	{ KE_KEY, 0x30, { KEY_VOLUMEUP } },
+	{ KE_KEY, 0x31, { KEY_VOLUMEDOWN } },
+	{ KE_KEY, 0x32, { KEY_MUTE } },
+	{ KE_KEY, 0x33, { KEY_DISPLAYTOGGLE } }, /* LCD on */
+	{ KE_KEY, 0x34, { KEY_DISPLAY_OFF } }, /* LCD off */
+	{ KE_KEY, 0x40, { KEY_PREVIOUSSONG } },
+	{ KE_KEY, 0x41, { KEY_NEXTSONG } },
+	{ KE_KEY, 0x43, { KEY_STOPCD } },
+	{ KE_KEY, 0x45, { KEY_PLAYPAUSE } },
+	{ KE_KEY, 0x4c, { KEY_MEDIA } },
+	{ KE_KEY, 0x50, { KEY_EMAIL } },
+	{ KE_KEY, 0x51, { KEY_WWW } },
+	{ KE_KEY, 0x55, { KEY_CALC } },
+	{ KE_KEY, 0x5C, { KEY_F15 } },  /* Power Gear key */
+	{ KE_KEY, 0x5D, { KEY_WLAN } },
+	{ KE_KEY, 0x5E, { KEY_WLAN } },
+	{ KE_KEY, 0x5F, { KEY_WLAN } },
+	{ KE_KEY, 0x60, { KEY_SWITCHVIDEOMODE } },
+	{ KE_KEY, 0x61, { KEY_SWITCHVIDEOMODE } },
+	{ KE_KEY, 0x62, { KEY_SWITCHVIDEOMODE } },
+	{ KE_KEY, 0x63, { KEY_SWITCHVIDEOMODE } },
+	{ KE_KEY, 0x6B, { KEY_TOUCHPAD_TOGGLE } },
+	{ KE_KEY, 0x7E, { KEY_BLUETOOTH } },
+	{ KE_KEY, 0x7D, { KEY_BLUETOOTH } },
+	{ KE_KEY, 0x82, { KEY_CAMERA } },
+	{ KE_KEY, 0x88, { KEY_RFKILL  } },
+	{ KE_KEY, 0x8A, { KEY_PROG1 } },
+	{ KE_KEY, 0x95, { KEY_MEDIA } },
+	{ KE_KEY, 0x99, { KEY_PHONE } },
+	{ KE_KEY, 0xb5, { KEY_CALC } },
+	{ KE_KEY, 0xc4, { KEY_KBDILLUMUP } },
+	{ KE_KEY, 0xc5, { KEY_KBDILLUMDOWN } },
+	{ KE_END, 0},
+};
+
+static struct asus_wmi_driver asus_nb_wmi_driver = {
+	.name = ASUS_NB_WMI_FILE,
+	.owner = THIS_MODULE,
+	.event_guid = ASUS_NB_WMI_EVENT_GUID,
+	.keymap = asus_nb_wmi_keymap,
+	.input_name = "Asus WMI hotkeys",
+	.input_phys = ASUS_NB_WMI_FILE "/input0",
+};
+
+
+static int __init asus_nb_wmi_init(void)
+{
+	return asus_wmi_register_driver(&asus_nb_wmi_driver);
+}
+
+static void __exit asus_nb_wmi_exit(void)
+{
+	asus_wmi_unregister_driver(&asus_nb_wmi_driver);
+}
+
+module_init(asus_nb_wmi_init);
+module_exit(asus_nb_wmi_exit);
diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
new file mode 100644
index 000000000000..efc776cb0c66
--- /dev/null
+++ b/drivers/platform/x86/asus-wmi.c
@@ -0,0 +1,1656 @@
+/*
+ * Asus PC WMI hotkey driver
+ *
+ * Copyright(C) 2010 Intel Corporation.
+ * Copyright(C) 2010-2011 Corentin Chary <corentin.chary@gmail.com>
+ *
+ * Portions based on wistron_btns.c:
+ * Copyright (C) 2005 Miloslav Trmac <mitr@volny.cz>
+ * Copyright (C) 2005 Bernhard Rosenkraenzer <bero@arklinux.org>
+ * Copyright (C) 2005 Dmitry Torokhov <dtor@mail.ru>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/input/sparse-keymap.h>
+#include <linux/fb.h>
+#include <linux/backlight.h>
+#include <linux/leds.h>
+#include <linux/rfkill.h>
+#include <linux/pci.h>
+#include <linux/pci_hotplug.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/debugfs.h>
+#include <linux/seq_file.h>
+#include <linux/platform_device.h>
+#include <acpi/acpi_bus.h>
+#include <acpi/acpi_drivers.h>
+
+#include "asus-wmi.h"
+
+MODULE_AUTHOR("Corentin Chary <corentincj@iksaif.net>, "
+	      "Yong Wang <yong.y.wang@intel.com>");
+MODULE_DESCRIPTION("Asus Generic WMI Driver");
+MODULE_LICENSE("GPL");
+
+#define to_platform_driver(drv)					\
+	(container_of((drv), struct platform_driver, driver))
+
+#define to_asus_wmi_driver(pdrv)					\
+	(container_of((pdrv), struct asus_wmi_driver, platform_driver))
+
+#define ASUS_WMI_MGMT_GUID	"97845ED0-4E6D-11DE-8A39-0800200C9A66"
+
+#define NOTIFY_BRNUP_MIN		0x11
+#define NOTIFY_BRNUP_MAX		0x1f
+#define NOTIFY_BRNDOWN_MIN		0x20
+#define NOTIFY_BRNDOWN_MAX		0x2e
+
+/* WMI Methods */
+#define ASUS_WMI_METHODID_SPEC	        0x43455053 /* BIOS SPECification */
+#define ASUS_WMI_METHODID_SFBD		0x44424653 /* Set First Boot Device */
+#define ASUS_WMI_METHODID_GLCD		0x44434C47 /* Get LCD status */
+#define ASUS_WMI_METHODID_GPID		0x44495047 /* Get Panel ID?? (Resol) */
+#define ASUS_WMI_METHODID_QMOD		0x444F4D51 /* Quiet MODe */
+#define ASUS_WMI_METHODID_SPLV		0x4C425053 /* Set Panel Light Value */
+#define ASUS_WMI_METHODID_SFUN		0x4E554653 /* FUNCtionalities */
+#define ASUS_WMI_METHODID_SDSP		0x50534453 /* Set DiSPlay output */
+#define ASUS_WMI_METHODID_GDSP		0x50534447 /* Get DiSPlay output */
+#define ASUS_WMI_METHODID_DEVP		0x50564544 /* DEVice Policy */
+#define ASUS_WMI_METHODID_OSVR		0x5256534F /* OS VeRsion */
+#define ASUS_WMI_METHODID_DSTS		0x53544344 /* Device STatuS */
+#define ASUS_WMI_METHODID_DSTS2		0x53545344 /* Device STatuS #2*/
+#define ASUS_WMI_METHODID_BSTS		0x53545342 /* Bios STatuS ? */
+#define ASUS_WMI_METHODID_DEVS		0x53564544 /* DEVice Set */
+#define ASUS_WMI_METHODID_CFVS		0x53564643 /* CPU Frequency Volt Set */
+#define ASUS_WMI_METHODID_KBFT		0x5446424B /* KeyBoard FilTer */
+#define ASUS_WMI_METHODID_INIT		0x54494E49 /* INITialize */
+#define ASUS_WMI_METHODID_HKEY		0x59454B48 /* Hot KEY ?? */
+
+#define ASUS_WMI_UNSUPPORTED_METHOD	0xFFFFFFFE
+
+/* Wireless */
+#define ASUS_WMI_DEVID_HW_SWITCH	0x00010001
+#define ASUS_WMI_DEVID_WIRELESS_LED	0x00010002
+#define ASUS_WMI_DEVID_WLAN		0x00010011
+#define ASUS_WMI_DEVID_BLUETOOTH	0x00010013
+#define ASUS_WMI_DEVID_GPS		0x00010015
+#define ASUS_WMI_DEVID_WIMAX		0x00010017
+#define ASUS_WMI_DEVID_WWAN3G		0x00010019
+#define ASUS_WMI_DEVID_UWB		0x00010021
+
+/* Leds */
+/* 0x000200XX and 0x000400XX */
+
+/* Backlight and Brightness */
+#define ASUS_WMI_DEVID_BACKLIGHT	0x00050011
+#define ASUS_WMI_DEVID_BRIGHTNESS	0x00050012
+#define ASUS_WMI_DEVID_KBD_BACKLIGHT	0x00050021
+#define ASUS_WMI_DEVID_LIGHT_SENSOR	0x00050022 /* ?? */
+
+/* Misc */
+#define ASUS_WMI_DEVID_CAMERA		0x00060013
+
+/* Storage */
+#define ASUS_WMI_DEVID_CARDREADER	0x00080013
+
+/* Input */
+#define ASUS_WMI_DEVID_TOUCHPAD		0x00100011
+#define ASUS_WMI_DEVID_TOUCHPAD_LED	0x00100012
+
+/* Fan, Thermal */
+#define ASUS_WMI_DEVID_THERMAL_CTRL	0x00110011
+#define ASUS_WMI_DEVID_FAN_CTRL		0x00110012
+
+/* Power */
+#define ASUS_WMI_DEVID_PROCESSOR_STATE	0x00120012
+
+/* DSTS masks */
+#define ASUS_WMI_DSTS_STATUS_BIT	0x00000001
+#define ASUS_WMI_DSTS_UNKNOWN_BIT	0x00000002
+#define ASUS_WMI_DSTS_PRESENCE_BIT	0x00010000
+#define ASUS_WMI_DSTS_USER_BIT		0x00020000
+#define ASUS_WMI_DSTS_BIOS_BIT		0x00040000
+#define ASUS_WMI_DSTS_BRIGHTNESS_MASK	0x000000FF
+#define ASUS_WMI_DSTS_MAX_BRIGTH_MASK	0x0000FF00
+
+struct bios_args {
+	u32 arg0;
+	u32 arg1;
+} __packed;
+
+/*
+ * <platform>/    - debugfs root directory
+ *   dev_id      - current dev_id
+ *   ctrl_param  - current ctrl_param
+ *   method_id   - current method_id
+ *   devs        - call DEVS(dev_id, ctrl_param) and print result
+ *   dsts        - call DSTS(dev_id)  and print result
+ *   call        - call method_id(dev_id, ctrl_param) and print result
+ */
+struct asus_wmi_debug {
+	struct dentry *root;
+	u32 method_id;
+	u32 dev_id;
+	u32 ctrl_param;
+};
+
+struct asus_rfkill {
+	struct asus_wmi *asus;
+	struct rfkill *rfkill;
+	u32 dev_id;
+};
+
+struct asus_wmi {
+	int dsts_id;
+	int spec;
+	int sfun;
+
+	struct input_dev *inputdev;
+	struct backlight_device *backlight_device;
+	struct device *hwmon_device;
+	struct platform_device *platform_device;
+
+	struct led_classdev tpd_led;
+	int tpd_led_wk;
+	struct workqueue_struct *led_workqueue;
+	struct work_struct tpd_led_work;
+
+	struct asus_rfkill wlan;
+	struct asus_rfkill bluetooth;
+	struct asus_rfkill wimax;
+	struct asus_rfkill wwan3g;
+
+	struct hotplug_slot *hotplug_slot;
+	struct mutex hotplug_lock;
+	struct mutex wmi_lock;
+	struct workqueue_struct *hotplug_workqueue;
+	struct work_struct hotplug_work;
+
+	struct asus_wmi_debug debug;
+
+	struct asus_wmi_driver *driver;
+};
+
+static int asus_wmi_input_init(struct asus_wmi *asus)
+{
+	int err;
+
+	asus->inputdev = input_allocate_device();
+	if (!asus->inputdev)
+		return -ENOMEM;
+
+	asus->inputdev->name = asus->driver->input_phys;
+	asus->inputdev->phys = asus->driver->input_name;
+	asus->inputdev->id.bustype = BUS_HOST;
+	asus->inputdev->dev.parent = &asus->platform_device->dev;
+
+	err = sparse_keymap_setup(asus->inputdev, asus->driver->keymap, NULL);
+	if (err)
+		goto err_free_dev;
+
+	err = input_register_device(asus->inputdev);
+	if (err)
+		goto err_free_keymap;
+
+	return 0;
+
+err_free_keymap:
+	sparse_keymap_free(asus->inputdev);
+err_free_dev:
+	input_free_device(asus->inputdev);
+	return err;
+}
+
+static void asus_wmi_input_exit(struct asus_wmi *asus)
+{
+	if (asus->inputdev) {
+		sparse_keymap_free(asus->inputdev);
+		input_unregister_device(asus->inputdev);
+	}
+
+	asus->inputdev = NULL;
+}
+
+static int asus_wmi_evaluate_method(u32 method_id, u32 arg0, u32 arg1,
+				    u32 *retval)
+{
+	struct bios_args args = {
+		.arg0 = arg0,
+		.arg1 = arg1,
+	};
+	struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
+	struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
+	acpi_status status;
+	union acpi_object *obj;
+	u32 tmp;
+
+	status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID, 1, method_id,
+				     &input, &output);
+
+	if (ACPI_FAILURE(status))
+		goto exit;
+
+	obj = (union acpi_object *)output.pointer;
+	if (obj && obj->type == ACPI_TYPE_INTEGER)
+		tmp = (u32) obj->integer.value;
+	else
+		tmp = 0;
+
+	if (retval)
+		*retval = tmp;
+
+	kfree(obj);
+
+exit:
+	if (ACPI_FAILURE(status))
+		return -EIO;
+
+	if (tmp == ASUS_WMI_UNSUPPORTED_METHOD)
+		return -ENODEV;
+
+	return 0;
+}
+
+static int asus_wmi_get_devstate(struct asus_wmi *asus, u32 dev_id, u32 *retval)
+{
+	return asus_wmi_evaluate_method(asus->dsts_id, dev_id, 0, retval);
+}
+
+static int asus_wmi_set_devstate(u32 dev_id, u32 ctrl_param,
+				 u32 *retval)
+{
+	return asus_wmi_evaluate_method(ASUS_WMI_METHODID_DEVS, dev_id,
+					ctrl_param, retval);
+}
+
+/* Helper for special devices with magic return codes */
+static int asus_wmi_get_devstate_bits(struct asus_wmi *asus,
+				      u32 dev_id, u32 mask)
+{
+	u32 retval = 0;
+	int err;
+
+	err = asus_wmi_get_devstate(asus, dev_id, &retval);
+
+	if (err < 0)
+		return err;
+
+	if (!(retval & ASUS_WMI_DSTS_PRESENCE_BIT))
+		return -ENODEV;
+
+	if (mask == ASUS_WMI_DSTS_STATUS_BIT) {
+		if (retval & ASUS_WMI_DSTS_UNKNOWN_BIT)
+			return -ENODEV;
+	}
+
+	return retval & mask;
+}
+
+static int asus_wmi_get_devstate_simple(struct asus_wmi *asus, u32 dev_id)
+{
+	return asus_wmi_get_devstate_bits(asus, dev_id,
+					  ASUS_WMI_DSTS_STATUS_BIT);
+}
+
+/*
+ * LEDs
+ */
+/*
+ * These functions actually update the LED's, and are called from a
+ * workqueue. By doing this as separate work rather than when the LED
+ * subsystem asks, we avoid messing with the Asus ACPI stuff during a
+ * potentially bad time, such as a timer interrupt.
+ */
+static void tpd_led_update(struct work_struct *work)
+{
+	int ctrl_param;
+	struct asus_wmi *asus;
+
+	asus = container_of(work, struct asus_wmi, tpd_led_work);
+
+	ctrl_param = asus->tpd_led_wk;
+	asus_wmi_set_devstate(ASUS_WMI_DEVID_TOUCHPAD_LED, ctrl_param, NULL);
+}
+
+static void tpd_led_set(struct led_classdev *led_cdev,
+			enum led_brightness value)
+{
+	struct asus_wmi *asus;
+
+	asus = container_of(led_cdev, struct asus_wmi, tpd_led);
+
+	asus->tpd_led_wk = !!value;
+	queue_work(asus->led_workqueue, &asus->tpd_led_work);
+}
+
+static int read_tpd_led_state(struct asus_wmi *asus)
+{
+	return asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_TOUCHPAD_LED);
+}
+
+static enum led_brightness tpd_led_get(struct led_classdev *led_cdev)
+{
+	struct asus_wmi *asus;
+
+	asus = container_of(led_cdev, struct asus_wmi, tpd_led);
+
+	return read_tpd_led_state(asus);
+}
+
+static int asus_wmi_led_init(struct asus_wmi *asus)
+{
+	int rv;
+
+	if (read_tpd_led_state(asus) < 0)
+		return 0;
+
+	asus->led_workqueue = create_singlethread_workqueue("led_workqueue");
+	if (!asus->led_workqueue)
+		return -ENOMEM;
+	INIT_WORK(&asus->tpd_led_work, tpd_led_update);
+
+	asus->tpd_led.name = "asus::touchpad";
+	asus->tpd_led.brightness_set = tpd_led_set;
+	asus->tpd_led.brightness_get = tpd_led_get;
+	asus->tpd_led.max_brightness = 1;
+
+	rv = led_classdev_register(&asus->platform_device->dev, &asus->tpd_led);
+	if (rv) {
+		destroy_workqueue(asus->led_workqueue);
+		return rv;
+	}
+
+	return 0;
+}
+
+static void asus_wmi_led_exit(struct asus_wmi *asus)
+{
+	if (asus->tpd_led.dev)
+		led_classdev_unregister(&asus->tpd_led);
+	if (asus->led_workqueue)
+		destroy_workqueue(asus->led_workqueue);
+}
+
+/*
+ * PCI hotplug (for wlan rfkill)
+ */
+static bool asus_wlan_rfkill_blocked(struct asus_wmi *asus)
+{
+	int result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WLAN);
+
+	if (result < 0)
+		return false;
+	return !result;
+}
+
+static void asus_rfkill_hotplug(struct asus_wmi *asus)
+{
+	struct pci_dev *dev;
+	struct pci_bus *bus;
+	bool blocked;
+	bool absent;
+	u32 l;
+
+	mutex_lock(&asus->wmi_lock);
+	blocked = asus_wlan_rfkill_blocked(asus);
+	mutex_unlock(&asus->wmi_lock);
+
+	mutex_lock(&asus->hotplug_lock);
+
+	if (asus->wlan.rfkill)
+		rfkill_set_sw_state(asus->wlan.rfkill, blocked);
+
+	if (asus->hotplug_slot) {
+		bus = pci_find_bus(0, 1);
+		if (!bus) {
+			pr_warning("Unable to find PCI bus 1?\n");
+			goto out_unlock;
+		}
+
+		if (pci_bus_read_config_dword(bus, 0, PCI_VENDOR_ID, &l)) {
+			pr_err("Unable to read PCI config space?\n");
+			goto out_unlock;
+		}
+		absent = (l == 0xffffffff);
+
+		if (blocked != absent) {
+			pr_warning("BIOS says wireless lan is %s, "
+				   "but the pci device is %s\n",
+				   blocked ? "blocked" : "unblocked",
+				   absent ? "absent" : "present");
+			pr_warning("skipped wireless hotplug as probably "
+				   "inappropriate for this model\n");
+			goto out_unlock;
+		}
+
+		if (!blocked) {
+			dev = pci_get_slot(bus, 0);
+			if (dev) {
+				/* Device already present */
+				pci_dev_put(dev);
+				goto out_unlock;
+			}
+			dev = pci_scan_single_device(bus, 0);
+			if (dev) {
+				pci_bus_assign_resources(bus);
+				if (pci_bus_add_device(dev))
+					pr_err("Unable to hotplug wifi\n");
+			}
+		} else {
+			dev = pci_get_slot(bus, 0);
+			if (dev) {
+				pci_remove_bus_device(dev);
+				pci_dev_put(dev);
+			}
+		}
+	}
+
+out_unlock:
+	mutex_unlock(&asus->hotplug_lock);
+}
+
+static void asus_rfkill_notify(acpi_handle handle, u32 event, void *data)
+{
+	struct asus_wmi *asus = data;
+
+	if (event != ACPI_NOTIFY_BUS_CHECK)
+		return;
+
+	/*
+	 * We can't call directly asus_rfkill_hotplug because most
+	 * of the time WMBC is still being executed and not reetrant.
+	 * There is currently no way to tell ACPICA that  we want this
+	 * method to be serialized, we schedule a asus_rfkill_hotplug
+	 * call later, in a safer context.
+	 */
+	queue_work(asus->hotplug_workqueue, &asus->hotplug_work);
+}
+
+static int asus_register_rfkill_notifier(struct asus_wmi *asus, char *node)
+{
+	acpi_status status;
+	acpi_handle handle;
+
+	status = acpi_get_handle(NULL, node, &handle);
+
+	if (ACPI_SUCCESS(status)) {
+		status = acpi_install_notify_handler(handle,
+						     ACPI_SYSTEM_NOTIFY,
+						     asus_rfkill_notify, asus);
+		if (ACPI_FAILURE(status))
+			pr_warning("Failed to register notify on %s\n", node);
+	} else
+		return -ENODEV;
+
+	return 0;
+}
+
+static void asus_unregister_rfkill_notifier(struct asus_wmi *asus, char *node)
+{
+	acpi_status status = AE_OK;
+	acpi_handle handle;
+
+	status = acpi_get_handle(NULL, node, &handle);
+
+	if (ACPI_SUCCESS(status)) {
+		status = acpi_remove_notify_handler(handle,
+						    ACPI_SYSTEM_NOTIFY,
+						    asus_rfkill_notify);
+		if (ACPI_FAILURE(status))
+			pr_err("Error removing rfkill notify handler %s\n",
+			       node);
+	}
+}
+
+static int asus_get_adapter_status(struct hotplug_slot *hotplug_slot,
+				   u8 *value)
+{
+	struct asus_wmi *asus = hotplug_slot->private;
+	int result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WLAN);
+
+	if (result < 0)
+		return result;
+
+	*value = !!result;
+	return 0;
+}
+
+static void asus_cleanup_pci_hotplug(struct hotplug_slot *hotplug_slot)
+{
+	kfree(hotplug_slot->info);
+	kfree(hotplug_slot);
+}
+
+static struct hotplug_slot_ops asus_hotplug_slot_ops = {
+	.owner = THIS_MODULE,
+	.get_adapter_status = asus_get_adapter_status,
+	.get_power_status = asus_get_adapter_status,
+};
+
+static void asus_hotplug_work(struct work_struct *work)
+{
+	struct asus_wmi *asus;
+
+	asus = container_of(work, struct asus_wmi, hotplug_work);
+	asus_rfkill_hotplug(asus);
+}
+
+static int asus_setup_pci_hotplug(struct asus_wmi *asus)
+{
+	int ret = -ENOMEM;
+	struct pci_bus *bus = pci_find_bus(0, 1);
+
+	if (!bus) {
+		pr_err("Unable to find wifi PCI bus\n");
+		return -ENODEV;
+	}
+
+	asus->hotplug_workqueue =
+	    create_singlethread_workqueue("hotplug_workqueue");
+	if (!asus->hotplug_workqueue)
+		goto error_workqueue;
+
+	INIT_WORK(&asus->hotplug_work, asus_hotplug_work);
+
+	asus->hotplug_slot = kzalloc(sizeof(struct hotplug_slot), GFP_KERNEL);
+	if (!asus->hotplug_slot)
+		goto error_slot;
+
+	asus->hotplug_slot->info = kzalloc(sizeof(struct hotplug_slot_info),
+					   GFP_KERNEL);
+	if (!asus->hotplug_slot->info)
+		goto error_info;
+
+	asus->hotplug_slot->private = asus;
+	asus->hotplug_slot->release = &asus_cleanup_pci_hotplug;
+	asus->hotplug_slot->ops = &asus_hotplug_slot_ops;
+	asus_get_adapter_status(asus->hotplug_slot,
+				&asus->hotplug_slot->info->adapter_status);
+
+	ret = pci_hp_register(asus->hotplug_slot, bus, 0, "asus-wifi");
+	if (ret) {
+		pr_err("Unable to register hotplug slot - %d\n", ret);
+		goto error_register;
+	}
+
+	return 0;
+
+error_register:
+	kfree(asus->hotplug_slot->info);
+error_info:
+	kfree(asus->hotplug_slot);
+	asus->hotplug_slot = NULL;
+error_slot:
+	destroy_workqueue(asus->hotplug_workqueue);
+error_workqueue:
+	return ret;
+}
+
+/*
+ * Rfkill devices
+ */
+static int asus_rfkill_set(void *data, bool blocked)
+{
+	struct asus_rfkill *priv = data;
+	u32 ctrl_param = !blocked;
+
+	return asus_wmi_set_devstate(priv->dev_id, ctrl_param, NULL);
+}
+
+static void asus_rfkill_query(struct rfkill *rfkill, void *data)
+{
+	struct asus_rfkill *priv = data;
+	int result;
+
+	result = asus_wmi_get_devstate_simple(priv->asus, priv->dev_id);
+
+	if (result < 0)
+		return;
+
+	rfkill_set_sw_state(priv->rfkill, !result);
+}
+
+static int asus_rfkill_wlan_set(void *data, bool blocked)
+{
+	struct asus_rfkill *priv = data;
+	struct asus_wmi *asus = priv->asus;
+	int ret;
+
+	/*
+	 * This handler is enabled only if hotplug is enabled.
+	 * In this case, the asus_wmi_set_devstate() will
+	 * trigger a wmi notification and we need to wait
+	 * this call to finish before being able to call
+	 * any wmi method
+	 */
+	mutex_lock(&asus->wmi_lock);
+	ret = asus_rfkill_set(data, blocked);
+	mutex_unlock(&asus->wmi_lock);
+	return ret;
+}
+
+static const struct rfkill_ops asus_rfkill_wlan_ops = {
+	.set_block = asus_rfkill_wlan_set,
+	.query = asus_rfkill_query,
+};
+
+static const struct rfkill_ops asus_rfkill_ops = {
+	.set_block = asus_rfkill_set,
+	.query = asus_rfkill_query,
+};
+
+static int asus_new_rfkill(struct asus_wmi *asus,
+			   struct asus_rfkill *arfkill,
+			   const char *name, enum rfkill_type type, int dev_id)
+{
+	int result = asus_wmi_get_devstate_simple(asus, dev_id);
+	struct rfkill **rfkill = &arfkill->rfkill;
+
+	if (result < 0)
+		return result;
+
+	arfkill->dev_id = dev_id;
+	arfkill->asus = asus;
+
+	if (dev_id == ASUS_WMI_DEVID_WLAN && asus->driver->hotplug_wireless)
+		*rfkill = rfkill_alloc(name, &asus->platform_device->dev, type,
+				       &asus_rfkill_wlan_ops, arfkill);
+	else
+		*rfkill = rfkill_alloc(name, &asus->platform_device->dev, type,
+				       &asus_rfkill_ops, arfkill);
+
+	if (!*rfkill)
+		return -EINVAL;
+
+	rfkill_init_sw_state(*rfkill, !result);
+	result = rfkill_register(*rfkill);
+	if (result) {
+		rfkill_destroy(*rfkill);
+		*rfkill = NULL;
+		return result;
+	}
+	return 0;
+}
+
+static void asus_wmi_rfkill_exit(struct asus_wmi *asus)
+{
+	asus_unregister_rfkill_notifier(asus, "\\_SB.PCI0.P0P5");
+	asus_unregister_rfkill_notifier(asus, "\\_SB.PCI0.P0P6");
+	asus_unregister_rfkill_notifier(asus, "\\_SB.PCI0.P0P7");
+	if (asus->wlan.rfkill) {
+		rfkill_unregister(asus->wlan.rfkill);
+		rfkill_destroy(asus->wlan.rfkill);
+		asus->wlan.rfkill = NULL;
+	}
+	/*
+	 * Refresh pci hotplug in case the rfkill state was changed after
+	 * asus_unregister_rfkill_notifier()
+	 */
+	asus_rfkill_hotplug(asus);
+	if (asus->hotplug_slot)
+		pci_hp_deregister(asus->hotplug_slot);
+	if (asus->hotplug_workqueue)
+		destroy_workqueue(asus->hotplug_workqueue);
+
+	if (asus->bluetooth.rfkill) {
+		rfkill_unregister(asus->bluetooth.rfkill);
+		rfkill_destroy(asus->bluetooth.rfkill);
+		asus->bluetooth.rfkill = NULL;
+	}
+	if (asus->wimax.rfkill) {
+		rfkill_unregister(asus->wimax.rfkill);
+		rfkill_destroy(asus->wimax.rfkill);
+		asus->wimax.rfkill = NULL;
+	}
+	if (asus->wwan3g.rfkill) {
+		rfkill_unregister(asus->wwan3g.rfkill);
+		rfkill_destroy(asus->wwan3g.rfkill);
+		asus->wwan3g.rfkill = NULL;
+	}
+}
+
+static int asus_wmi_rfkill_init(struct asus_wmi *asus)
+{
+	int result = 0;
+
+	mutex_init(&asus->hotplug_lock);
+	mutex_init(&asus->wmi_lock);
+
+	result = asus_new_rfkill(asus, &asus->wlan, "asus-wlan",
+				 RFKILL_TYPE_WLAN, ASUS_WMI_DEVID_WLAN);
+
+	if (result && result != -ENODEV)
+		goto exit;
+
+	result = asus_new_rfkill(asus, &asus->bluetooth,
+				 "asus-bluetooth", RFKILL_TYPE_BLUETOOTH,
+				 ASUS_WMI_DEVID_BLUETOOTH);
+
+	if (result && result != -ENODEV)
+		goto exit;
+
+	result = asus_new_rfkill(asus, &asus->wimax, "asus-wimax",
+				 RFKILL_TYPE_WIMAX, ASUS_WMI_DEVID_WIMAX);
+
+	if (result && result != -ENODEV)
+		goto exit;
+
+	result = asus_new_rfkill(asus, &asus->wwan3g, "asus-wwan3g",
+				 RFKILL_TYPE_WWAN, ASUS_WMI_DEVID_WWAN3G);
+
+	if (result && result != -ENODEV)
+		goto exit;
+
+	if (!asus->driver->hotplug_wireless)
+		goto exit;
+
+	result = asus_setup_pci_hotplug(asus);
+	/*
+	 * If we get -EBUSY then something else is handling the PCI hotplug -
+	 * don't fail in this case
+	 */
+	if (result == -EBUSY)
+		result = 0;
+
+	asus_register_rfkill_notifier(asus, "\\_SB.PCI0.P0P5");
+	asus_register_rfkill_notifier(asus, "\\_SB.PCI0.P0P6");
+	asus_register_rfkill_notifier(asus, "\\_SB.PCI0.P0P7");
+	/*
+	 * Refresh pci hotplug in case the rfkill state was changed during
+	 * setup.
+	 */
+	asus_rfkill_hotplug(asus);
+
+exit:
+	if (result && result != -ENODEV)
+		asus_wmi_rfkill_exit(asus);
+
+	if (result == -ENODEV)
+		result = 0;
+
+	return result;
+}
+
+/*
+ * Hwmon device
+ */
+static ssize_t asus_hwmon_pwm1(struct device *dev,
+			    struct device_attribute *attr,
+			    char *buf)
+{
+	struct asus_wmi *asus = dev_get_drvdata(dev);
+	u32 value;
+	int err;
+
+	err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_FAN_CTRL, &value);
+
+	if (err < 0)
+		return err;
+
+	value |= 0xFF;
+
+	if (value == 1) /* Low Speed */
+		value = 85;
+	else if (value == 2)
+		value = 170;
+	else if (value == 3)
+		value = 255;
+	else if (value != 0) {
+		pr_err("Unknown fan speed %#x", value);
+		value = -1;
+	}
+
+	return sprintf(buf, "%d\n", value);
+}
+
+static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO, asus_hwmon_pwm1, NULL, 0);
+
+static ssize_t
+show_name(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	return sprintf(buf, "asus\n");
+}
+static SENSOR_DEVICE_ATTR(name, S_IRUGO, show_name, NULL, 0);
+
+static struct attribute *hwmon_attributes[] = {
+	&sensor_dev_attr_pwm1.dev_attr.attr,
+	&sensor_dev_attr_name.dev_attr.attr,
+	NULL
+};
+
+static mode_t asus_hwmon_sysfs_is_visible(struct kobject *kobj,
+				    struct attribute *attr, int idx)
+{
+	struct device *dev = container_of(kobj, struct device, kobj);
+	struct platform_device *pdev = to_platform_device(dev->parent);
+	struct asus_wmi *asus = platform_get_drvdata(pdev);
+	bool ok = true;
+	int dev_id = -1;
+	u32 value = ASUS_WMI_UNSUPPORTED_METHOD;
+
+	if (attr == &sensor_dev_attr_pwm1.dev_attr.attr)
+		dev_id = ASUS_WMI_DEVID_FAN_CTRL;
+
+	if (dev_id != -1) {
+		int err = asus_wmi_get_devstate(asus, dev_id, &value);
+
+		if (err < 0)
+			return err;
+	}
+
+	if (dev_id == ASUS_WMI_DEVID_FAN_CTRL) {
+		/*
+		 * We need to find a better way, probably using sfun,
+		 * bits or spec ...
+		 * Currently we disable it if:
+		 * - ASUS_WMI_UNSUPPORTED_METHOD is returned
+		 * - reverved bits are non-zero
+		 * - sfun and presence bit are not set
+		 */
+		if (value != ASUS_WMI_UNSUPPORTED_METHOD || value & 0xFFF80000
+		    || (!asus->sfun && !(value & ASUS_WMI_DSTS_PRESENCE_BIT)))
+			ok = false;
+	}
+
+	return ok ? attr->mode : 0;
+}
+
+static struct attribute_group hwmon_attribute_group = {
+	.is_visible = asus_hwmon_sysfs_is_visible,
+	.attrs = hwmon_attributes
+};
+
+static void asus_wmi_hwmon_exit(struct asus_wmi *asus)
+{
+	struct device *hwmon;
+
+	hwmon = asus->hwmon_device;
+	if (!hwmon)
+		return;
+	sysfs_remove_group(&hwmon->kobj, &hwmon_attribute_group);
+	hwmon_device_unregister(hwmon);
+	asus->hwmon_device = NULL;
+}
+
+static int asus_wmi_hwmon_init(struct asus_wmi *asus)
+{
+	struct device *hwmon;
+	int result;
+
+	hwmon = hwmon_device_register(&asus->platform_device->dev);
+	if (IS_ERR(hwmon)) {
+		pr_err("Could not register asus hwmon device\n");
+		return PTR_ERR(hwmon);
+	}
+	asus->hwmon_device = hwmon;
+	result = sysfs_create_group(&hwmon->kobj, &hwmon_attribute_group);
+	if (result)
+		asus_wmi_hwmon_exit(asus);
+	return result;
+}
+
+/*
+ * Backlight
+ */
+static int read_backlight_power(struct asus_wmi *asus)
+{
+	int ret = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_BACKLIGHT);
+
+	if (ret < 0)
+		return ret;
+
+	return ret ? FB_BLANK_UNBLANK : FB_BLANK_POWERDOWN;
+}
+
+static int read_brightness_max(struct asus_wmi *asus)
+{
+	u32 retval;
+	int err;
+
+	err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_BRIGHTNESS, &retval);
+
+	if (err < 0)
+		return err;
+
+	retval = retval & ASUS_WMI_DSTS_MAX_BRIGTH_MASK;
+	retval >>= 8;
+
+	if (!retval)
+		return -ENODEV;
+
+	return retval;
+}
+
+static int read_brightness(struct backlight_device *bd)
+{
+	struct asus_wmi *asus = bl_get_data(bd);
+	u32 retval;
+	int err;
+
+	err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_BRIGHTNESS, &retval);
+
+	if (err < 0)
+		return err;
+
+	return retval & ASUS_WMI_DSTS_BRIGHTNESS_MASK;
+}
+
+static int update_bl_status(struct backlight_device *bd)
+{
+	struct asus_wmi *asus = bl_get_data(bd);
+	u32 ctrl_param;
+	int power, err;
+
+	ctrl_param = bd->props.brightness;
+
+	err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BRIGHTNESS,
+				    ctrl_param, NULL);
+
+	if (err < 0)
+		return err;
+
+	power = read_backlight_power(asus);
+	if (power != -ENODEV && bd->props.power != power) {
+		ctrl_param = !!(bd->props.power == FB_BLANK_UNBLANK);
+		err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BACKLIGHT,
+					    ctrl_param, NULL);
+	}
+	return err;
+}
+
+static const struct backlight_ops asus_wmi_bl_ops = {
+	.get_brightness = read_brightness,
+	.update_status = update_bl_status,
+};
+
+static int asus_wmi_backlight_notify(struct asus_wmi *asus, int code)
+{
+	struct backlight_device *bd = asus->backlight_device;
+	int old = bd->props.brightness;
+	int new = old;
+
+	if (code >= NOTIFY_BRNUP_MIN && code <= NOTIFY_BRNUP_MAX)
+		new = code - NOTIFY_BRNUP_MIN + 1;
+	else if (code >= NOTIFY_BRNDOWN_MIN && code <= NOTIFY_BRNDOWN_MAX)
+		new = code - NOTIFY_BRNDOWN_MIN;
+
+	bd->props.brightness = new;
+	backlight_update_status(bd);
+	backlight_force_update(bd, BACKLIGHT_UPDATE_HOTKEY);
+
+	return old;
+}
+
+static int asus_wmi_backlight_init(struct asus_wmi *asus)
+{
+	struct backlight_device *bd;
+	struct backlight_properties props;
+	int max;
+	int power;
+
+	max = read_brightness_max(asus);
+
+	if (max == -ENODEV)
+		max = 0;
+	else if (max < 0)
+		return max;
+
+	power = read_backlight_power(asus);
+
+	if (power == -ENODEV)
+		power = FB_BLANK_UNBLANK;
+	else if (power < 0)
+		return power;
+
+	memset(&props, 0, sizeof(struct backlight_properties));
+	props.max_brightness = max;
+	bd = backlight_device_register(asus->driver->name,
+				       &asus->platform_device->dev, asus,
+				       &asus_wmi_bl_ops, &props);
+	if (IS_ERR(bd)) {
+		pr_err("Could not register backlight device\n");
+		return PTR_ERR(bd);
+	}
+
+	asus->backlight_device = bd;
+
+	bd->props.brightness = read_brightness(bd);
+	bd->props.power = power;
+	backlight_update_status(bd);
+
+	return 0;
+}
+
+static void asus_wmi_backlight_exit(struct asus_wmi *asus)
+{
+	if (asus->backlight_device)
+		backlight_device_unregister(asus->backlight_device);
+
+	asus->backlight_device = NULL;
+}
+
+static void asus_wmi_notify(u32 value, void *context)
+{
+	struct asus_wmi *asus = context;
+	struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
+	union acpi_object *obj;
+	acpi_status status;
+	int code;
+	int orig_code;
+
+	status = wmi_get_event_data(value, &response);
+	if (status != AE_OK) {
+		pr_err("bad event status 0x%x\n", status);
+		return;
+	}
+
+	obj = (union acpi_object *)response.pointer;
+
+	if (!obj || obj->type != ACPI_TYPE_INTEGER)
+		goto exit;
+
+	code = obj->integer.value;
+	orig_code = code;
+
+	if (code >= NOTIFY_BRNUP_MIN && code <= NOTIFY_BRNUP_MAX)
+		code = NOTIFY_BRNUP_MIN;
+	else if (code >= NOTIFY_BRNDOWN_MIN &&
+		 code <= NOTIFY_BRNDOWN_MAX)
+		code = NOTIFY_BRNDOWN_MIN;
+
+	if (code == NOTIFY_BRNUP_MIN || code == NOTIFY_BRNDOWN_MIN) {
+		if (!acpi_video_backlight_support())
+			asus_wmi_backlight_notify(asus, orig_code);
+	} else if (!sparse_keymap_report_event(asus->inputdev, code, 1, true))
+		pr_info("Unknown key %x pressed\n", code);
+
+exit:
+	kfree(obj);
+}
+
+/*
+ * Sys helpers
+ */
+static int parse_arg(const char *buf, unsigned long count, int *val)
+{
+	if (!count)
+		return 0;
+	if (sscanf(buf, "%i", val) != 1)
+		return -EINVAL;
+	return count;
+}
+
+static ssize_t store_sys_wmi(struct asus_wmi *asus, int devid,
+			     const char *buf, size_t count)
+{
+	u32 retval;
+	int rv, err, value;
+
+	value = asus_wmi_get_devstate_simple(asus, devid);
+	if (value == -ENODEV)	/* Check device presence */
+		return value;
+
+	rv = parse_arg(buf, count, &value);
+	err = asus_wmi_set_devstate(devid, value, &retval);
+
+	if (err < 0)
+		return err;
+
+	return rv;
+}
+
+static ssize_t show_sys_wmi(struct asus_wmi *asus, int devid, char *buf)
+{
+	int value = asus_wmi_get_devstate_simple(asus, devid);
+
+	if (value < 0)
+		return value;
+
+	return sprintf(buf, "%d\n", value);
+}
+
+#define ASUS_WMI_CREATE_DEVICE_ATTR(_name, _mode, _cm)			\
+	static ssize_t show_##_name(struct device *dev,			\
+				    struct device_attribute *attr,	\
+				    char *buf)				\
+	{								\
+		struct asus_wmi *asus = dev_get_drvdata(dev);		\
+									\
+		return show_sys_wmi(asus, _cm, buf);			\
+	}								\
+	static ssize_t store_##_name(struct device *dev,		\
+				     struct device_attribute *attr,	\
+				     const char *buf, size_t count)	\
+	{								\
+		struct asus_wmi *asus = dev_get_drvdata(dev);		\
+									\
+		return store_sys_wmi(asus, _cm, buf, count);		\
+	}								\
+	static struct device_attribute dev_attr_##_name = {		\
+		.attr = {						\
+			.name = __stringify(_name),			\
+			.mode = _mode },				\
+		.show   = show_##_name,					\
+		.store  = store_##_name,				\
+	}
+
+ASUS_WMI_CREATE_DEVICE_ATTR(touchpad, 0644, ASUS_WMI_DEVID_TOUCHPAD);
+ASUS_WMI_CREATE_DEVICE_ATTR(camera, 0644, ASUS_WMI_DEVID_CAMERA);
+ASUS_WMI_CREATE_DEVICE_ATTR(cardr, 0644, ASUS_WMI_DEVID_CARDREADER);
+
+static ssize_t store_cpufv(struct device *dev, struct device_attribute *attr,
+			   const char *buf, size_t count)
+{
+	int value;
+
+	if (!count || sscanf(buf, "%i", &value) != 1)
+		return -EINVAL;
+	if (value < 0 || value > 2)
+		return -EINVAL;
+
+	return asus_wmi_evaluate_method(ASUS_WMI_METHODID_CFVS, value, 0, NULL);
+}
+
+static DEVICE_ATTR(cpufv, S_IRUGO | S_IWUSR, NULL, store_cpufv);
+
+static struct attribute *platform_attributes[] = {
+	&dev_attr_cpufv.attr,
+	&dev_attr_camera.attr,
+	&dev_attr_cardr.attr,
+	&dev_attr_touchpad.attr,
+	NULL
+};
+
+static mode_t asus_sysfs_is_visible(struct kobject *kobj,
+				    struct attribute *attr, int idx)
+{
+	struct device *dev = container_of(kobj, struct device, kobj);
+	struct platform_device *pdev = to_platform_device(dev);
+	struct asus_wmi *asus = platform_get_drvdata(pdev);
+	bool ok = true;
+	int devid = -1;
+
+	if (attr == &dev_attr_camera.attr)
+		devid = ASUS_WMI_DEVID_CAMERA;
+	else if (attr == &dev_attr_cardr.attr)
+		devid = ASUS_WMI_DEVID_CARDREADER;
+	else if (attr == &dev_attr_touchpad.attr)
+		devid = ASUS_WMI_DEVID_TOUCHPAD;
+
+	if (devid != -1)
+		ok = !(asus_wmi_get_devstate_simple(asus, devid) < 0);
+
+	return ok ? attr->mode : 0;
+}
+
+static struct attribute_group platform_attribute_group = {
+	.is_visible = asus_sysfs_is_visible,
+	.attrs = platform_attributes
+};
+
+static void asus_wmi_sysfs_exit(struct platform_device *device)
+{
+	sysfs_remove_group(&device->dev.kobj, &platform_attribute_group);
+}
+
+static int asus_wmi_sysfs_init(struct platform_device *device)
+{
+	return sysfs_create_group(&device->dev.kobj, &platform_attribute_group);
+}
+
+/*
+ * Platform device
+ */
+static int __init asus_wmi_platform_init(struct asus_wmi *asus)
+{
+	int rv;
+
+	/* INIT enable hotkeys on some models */
+	if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_INIT, 0, 0, &rv))
+		pr_info("Initialization: %#x", rv);
+
+	/* We don't know yet what to do with this version... */
+	if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_SPEC, 0, 0x9, &rv)) {
+		pr_info("BIOS WMI version: %d.%d", rv >> 8, rv & 0xFF);
+		asus->spec = rv;
+	}
+
+	/*
+	 * The SFUN method probably allows the original driver to get the list
+	 * of features supported by a given model. For now, 0x0100 or 0x0800
+	 * bit signifies that the laptop is equipped with a Wi-Fi MiniPCI card.
+	 * The significance of others is yet to be found.
+	 */
+	if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_SFUN, 0, 0, &rv)) {
+		pr_info("SFUN value: %#x", rv);
+		asus->sfun = rv;
+	}
+
+	/*
+	 * Eee PC and Notebooks seems to have different method_id for DSTS,
+	 * but it may also be related to the BIOS's SPEC.
+	 * Note, on most Eeepc, there is no way to check if a method exist
+	 * or note, while on notebooks, they returns 0xFFFFFFFE on failure,
+	 * but once again, SPEC may probably be used for that kind of things.
+	 */
+	if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_DSTS, 0, 0, NULL))
+		asus->dsts_id = ASUS_WMI_METHODID_DSTS;
+	else if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_DSTS2, 0, 0, NULL))
+		asus->dsts_id = ASUS_WMI_METHODID_DSTS2;
+
+	if (!asus->dsts_id) {
+		pr_err("Can't find DSTS");
+		return -ENODEV;
+	}
+
+	return asus_wmi_sysfs_init(asus->platform_device);
+}
+
+static void asus_wmi_platform_exit(struct asus_wmi *asus)
+{
+	asus_wmi_sysfs_exit(asus->platform_device);
+}
+
+/*
+ * debugfs
+ */
+struct asus_wmi_debugfs_node {
+	struct asus_wmi *asus;
+	char *name;
+	int (*show) (struct seq_file *m, void *data);
+};
+
+static int show_dsts(struct seq_file *m, void *data)
+{
+	struct asus_wmi *asus = m->private;
+	int err;
+	u32 retval = -1;
+
+	err = asus_wmi_get_devstate(asus, asus->debug.dev_id, &retval);
+
+	if (err < 0)
+		return err;
+
+	seq_printf(m, "DSTS(%#x) = %#x\n", asus->debug.dev_id, retval);
+
+	return 0;
+}
+
+static int show_devs(struct seq_file *m, void *data)
+{
+	struct asus_wmi *asus = m->private;
+	int err;
+	u32 retval = -1;
+
+	err = asus_wmi_set_devstate(asus->debug.dev_id, asus->debug.ctrl_param,
+				    &retval);
+
+	if (err < 0)
+		return err;
+
+	seq_printf(m, "DEVS(%#x, %#x) = %#x\n", asus->debug.dev_id,
+		   asus->debug.ctrl_param, retval);
+
+	return 0;
+}
+
+static int show_call(struct seq_file *m, void *data)
+{
+	struct asus_wmi *asus = m->private;
+	struct bios_args args = {
+		.arg0 = asus->debug.dev_id,
+		.arg1 = asus->debug.ctrl_param,
+	};
+	struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
+	struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
+	union acpi_object *obj;
+	acpi_status status;
+
+	status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID,
+				     1, asus->debug.method_id,
+				     &input, &output);
+
+	if (ACPI_FAILURE(status))
+		return -EIO;
+
+	obj = (union acpi_object *)output.pointer;
+	if (obj && obj->type == ACPI_TYPE_INTEGER)
+		seq_printf(m, "%#x(%#x, %#x) = %#x\n", asus->debug.method_id,
+			   asus->debug.dev_id, asus->debug.ctrl_param,
+			   (u32) obj->integer.value);
+	else
+		seq_printf(m, "%#x(%#x, %#x) = t:%d\n", asus->debug.method_id,
+			   asus->debug.dev_id, asus->debug.ctrl_param,
+			   obj ? obj->type : -1);
+
+	kfree(obj);
+
+	return 0;
+}
+
+static struct asus_wmi_debugfs_node asus_wmi_debug_files[] = {
+	{NULL, "devs", show_devs},
+	{NULL, "dsts", show_dsts},
+	{NULL, "call", show_call},
+};
+
+static int asus_wmi_debugfs_open(struct inode *inode, struct file *file)
+{
+	struct asus_wmi_debugfs_node *node = inode->i_private;
+
+	return single_open(file, node->show, node->asus);
+}
+
+static const struct file_operations asus_wmi_debugfs_io_ops = {
+	.owner = THIS_MODULE,
+	.open = asus_wmi_debugfs_open,
+	.read = seq_read,
+	.llseek = seq_lseek,
+	.release = single_release,
+};
+
+static void asus_wmi_debugfs_exit(struct asus_wmi *asus)
+{
+	debugfs_remove_recursive(asus->debug.root);
+}
+
+static int asus_wmi_debugfs_init(struct asus_wmi *asus)
+{
+	struct dentry *dent;
+	int i;
+
+	asus->debug.root = debugfs_create_dir(asus->driver->name, NULL);
+	if (!asus->debug.root) {
+		pr_err("failed to create debugfs directory");
+		goto error_debugfs;
+	}
+
+	dent = debugfs_create_x32("method_id", S_IRUGO | S_IWUSR,
+				  asus->debug.root, &asus->debug.method_id);
+	if (!dent)
+		goto error_debugfs;
+
+	dent = debugfs_create_x32("dev_id", S_IRUGO | S_IWUSR,
+				  asus->debug.root, &asus->debug.dev_id);
+	if (!dent)
+		goto error_debugfs;
+
+	dent = debugfs_create_x32("ctrl_param", S_IRUGO | S_IWUSR,
+				  asus->debug.root, &asus->debug.ctrl_param);
+	if (!dent)
+		goto error_debugfs;
+
+	for (i = 0; i < ARRAY_SIZE(asus_wmi_debug_files); i++) {
+		struct asus_wmi_debugfs_node *node = &asus_wmi_debug_files[i];
+
+		node->asus = asus;
+		dent = debugfs_create_file(node->name, S_IFREG | S_IRUGO,
+					   asus->debug.root, node,
+					   &asus_wmi_debugfs_io_ops);
+		if (!dent) {
+			pr_err("failed to create debug file: %s\n", node->name);
+			goto error_debugfs;
+		}
+	}
+
+	return 0;
+
+error_debugfs:
+	asus_wmi_debugfs_exit(asus);
+	return -ENOMEM;
+}
+
+/*
+ * WMI Driver
+ */
+static int asus_wmi_add(struct platform_device *pdev)
+{
+	struct platform_driver *pdrv = to_platform_driver(pdev->dev.driver);
+	struct asus_wmi_driver *wdrv = to_asus_wmi_driver(pdrv);
+	struct asus_wmi *asus;
+	acpi_status status;
+	int err;
+
+	asus = kzalloc(sizeof(struct asus_wmi), GFP_KERNEL);
+	if (!asus)
+		return -ENOMEM;
+
+	asus->driver = wdrv;
+	asus->platform_device = pdev;
+	wdrv->platform_device = pdev;
+	platform_set_drvdata(asus->platform_device, asus);
+
+	if (wdrv->quirks)
+		wdrv->quirks(asus->driver);
+
+	err = asus_wmi_platform_init(asus);
+	if (err)
+		goto fail_platform;
+
+	err = asus_wmi_input_init(asus);
+	if (err)
+		goto fail_input;
+
+	err = asus_wmi_hwmon_init(asus);
+	if (err)
+		goto fail_hwmon;
+
+	err = asus_wmi_led_init(asus);
+	if (err)
+		goto fail_leds;
+
+	err = asus_wmi_rfkill_init(asus);
+	if (err)
+		goto fail_rfkill;
+
+	if (!acpi_video_backlight_support()) {
+		err = asus_wmi_backlight_init(asus);
+		if (err && err != -ENODEV)
+			goto fail_backlight;
+	} else
+		pr_info("Backlight controlled by ACPI video driver\n");
+
+	status = wmi_install_notify_handler(asus->driver->event_guid,
+					    asus_wmi_notify, asus);
+	if (ACPI_FAILURE(status)) {
+		pr_err("Unable to register notify handler - %d\n", status);
+		err = -ENODEV;
+		goto fail_wmi_handler;
+	}
+
+	err = asus_wmi_debugfs_init(asus);
+	if (err)
+		goto fail_debugfs;
+
+	return 0;
+
+fail_debugfs:
+	wmi_remove_notify_handler(asus->driver->event_guid);
+fail_wmi_handler:
+	asus_wmi_backlight_exit(asus);
+fail_backlight:
+	asus_wmi_rfkill_exit(asus);
+fail_rfkill:
+	asus_wmi_led_exit(asus);
+fail_leds:
+	asus_wmi_hwmon_exit(asus);
+fail_hwmon:
+	asus_wmi_input_exit(asus);
+fail_input:
+	asus_wmi_platform_exit(asus);
+fail_platform:
+	kfree(asus);
+	return err;
+}
+
+static int asus_wmi_remove(struct platform_device *device)
+{
+	struct asus_wmi *asus;
+
+	asus = platform_get_drvdata(device);
+	wmi_remove_notify_handler(asus->driver->event_guid);
+	asus_wmi_backlight_exit(asus);
+	asus_wmi_input_exit(asus);
+	asus_wmi_hwmon_exit(asus);
+	asus_wmi_led_exit(asus);
+	asus_wmi_rfkill_exit(asus);
+	asus_wmi_debugfs_exit(asus);
+	asus_wmi_platform_exit(asus);
+
+	kfree(asus);
+	return 0;
+}
+
+/*
+ * Platform driver - hibernate/resume callbacks
+ */
+static int asus_hotk_thaw(struct device *device)
+{
+	struct asus_wmi *asus = dev_get_drvdata(device);
+
+	if (asus->wlan.rfkill) {
+		bool wlan;
+
+		/*
+		 * Work around bios bug - acpi _PTS turns off the wireless led
+		 * during suspend.  Normally it restores it on resume, but
+		 * we should kick it ourselves in case hibernation is aborted.
+		 */
+		wlan = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WLAN);
+		asus_wmi_set_devstate(ASUS_WMI_DEVID_WLAN, wlan, NULL);
+	}
+
+	return 0;
+}
+
+static int asus_hotk_restore(struct device *device)
+{
+	struct asus_wmi *asus = dev_get_drvdata(device);
+	int bl;
+
+	/* Refresh both wlan rfkill state and pci hotplug */
+	if (asus->wlan.rfkill)
+		asus_rfkill_hotplug(asus);
+
+	if (asus->bluetooth.rfkill) {
+		bl = !asus_wmi_get_devstate_simple(asus,
+						   ASUS_WMI_DEVID_BLUETOOTH);
+		rfkill_set_sw_state(asus->bluetooth.rfkill, bl);
+	}
+	if (asus->wimax.rfkill) {
+		bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WIMAX);
+		rfkill_set_sw_state(asus->wimax.rfkill, bl);
+	}
+	if (asus->wwan3g.rfkill) {
+		bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WWAN3G);
+		rfkill_set_sw_state(asus->wwan3g.rfkill, bl);
+	}
+
+	return 0;
+}
+
+static const struct dev_pm_ops asus_pm_ops = {
+	.thaw = asus_hotk_thaw,
+	.restore = asus_hotk_restore,
+};
+
+static int asus_wmi_probe(struct platform_device *pdev)
+{
+	struct platform_driver *pdrv = to_platform_driver(pdev->dev.driver);
+	struct asus_wmi_driver *wdrv = to_asus_wmi_driver(pdrv);
+	int ret;
+
+	if (!wmi_has_guid(ASUS_WMI_MGMT_GUID)) {
+		pr_warning("Management GUID not found\n");
+		return -ENODEV;
+	}
+
+	if (wdrv->event_guid && !wmi_has_guid(wdrv->event_guid)) {
+		pr_warning("Event GUID not found\n");
+		return -ENODEV;
+	}
+
+	if (wdrv->probe) {
+		ret = wdrv->probe(pdev);
+		if (ret)
+			return ret;
+	}
+
+	return asus_wmi_add(pdev);
+}
+
+static bool used;
+
+int asus_wmi_register_driver(struct asus_wmi_driver *driver)
+{
+	struct platform_driver *platform_driver;
+	struct platform_device *platform_device;
+
+	if (used)
+		return -EBUSY;
+
+	platform_driver = &driver->platform_driver;
+	platform_driver->remove = asus_wmi_remove;
+	platform_driver->driver.owner = driver->owner;
+	platform_driver->driver.name = driver->name;
+	platform_driver->driver.pm = &asus_pm_ops;
+
+	platform_device = platform_create_bundle(platform_driver,
+						 asus_wmi_probe,
+						 NULL, 0, NULL, 0);
+	if (IS_ERR(platform_device))
+		return PTR_ERR(platform_device);
+
+	used = true;
+	return 0;
+}
+EXPORT_SYMBOL_GPL(asus_wmi_register_driver);
+
+void asus_wmi_unregister_driver(struct asus_wmi_driver *driver)
+{
+	platform_device_unregister(driver->platform_device);
+	platform_driver_unregister(&driver->platform_driver);
+	used = false;
+}
+EXPORT_SYMBOL_GPL(asus_wmi_unregister_driver);
+
+static int __init asus_wmi_init(void)
+{
+	if (!wmi_has_guid(ASUS_WMI_MGMT_GUID)) {
+		pr_info("Asus Management GUID not found");
+		return -ENODEV;
+	}
+
+	pr_info("ASUS WMI generic driver loaded");
+	return 0;
+}
+
+static void __exit asus_wmi_exit(void)
+{
+	pr_info("ASUS WMI generic driver unloaded");
+}
+
+module_init(asus_wmi_init);
+module_exit(asus_wmi_exit);
diff --git a/drivers/platform/x86/asus-wmi.h b/drivers/platform/x86/asus-wmi.h
new file mode 100644
index 000000000000..c044522c8766
--- /dev/null
+++ b/drivers/platform/x86/asus-wmi.h
@@ -0,0 +1,58 @@
+/*
+ * Asus PC WMI hotkey driver
+ *
+ * Copyright(C) 2010 Intel Corporation.
+ * Copyright(C) 2010-2011 Corentin Chary <corentin.chary@gmail.com>
+ *
+ * Portions based on wistron_btns.c:
+ * Copyright (C) 2005 Miloslav Trmac <mitr@volny.cz>
+ * Copyright (C) 2005 Bernhard Rosenkraenzer <bero@arklinux.org>
+ * Copyright (C) 2005 Dmitry Torokhov <dtor@mail.ru>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#ifndef _ASUS_WMI_H_
+#define _ASUS_WMI_H_
+
+#include <linux/platform_device.h>
+
+struct module;
+struct key_entry;
+struct asus_wmi;
+
+struct asus_wmi_driver {
+	bool			hotplug_wireless;
+
+	const char		*name;
+	struct module		*owner;
+
+	const char		*event_guid;
+
+	const struct key_entry	*keymap;
+	const char		*input_name;
+	const char		*input_phys;
+
+	int (*probe) (struct platform_device *device);
+	void (*quirks) (struct asus_wmi_driver *driver);
+
+	struct platform_driver	platform_driver;
+	struct platform_device *platform_device;
+};
+
+int asus_wmi_register_driver(struct asus_wmi_driver *driver);
+void asus_wmi_unregister_driver(struct asus_wmi_driver *driver);
+
+#endif /* !_ASUS_WMI_H_ */
diff --git a/drivers/platform/x86/compal-laptop.c b/drivers/platform/x86/compal-laptop.c
index eb95878fa583..c16a27641ced 100644
--- a/drivers/platform/x86/compal-laptop.c
+++ b/drivers/platform/x86/compal-laptop.c
@@ -201,7 +201,7 @@ static bool extra_features;
  * into 0x4F and read a few bytes from the output, like so:
  *	u8 writeData = 0x33;
  *	ec_transaction(0x4F, &writeData, 1, buffer, 32, 0);
- * That address is labled "fan1 table information" in the service manual.
+ * That address is labelled "fan1 table information" in the service manual.
  * It should be clear which value in 'buffer' changes). This seems to be
  * related to fan speed. It isn't a proper 'realtime' fan speed value
  * though, because physically stopping or speeding up the fan doesn't
@@ -275,7 +275,7 @@ static int set_backlight_level(int level)
 
 	ec_write(BACKLIGHT_LEVEL_ADDR, level);
 
-	return 1;
+	return 0;
 }
 
 static int get_backlight_level(void)
@@ -763,7 +763,7 @@ static int dmi_check_cb(const struct dmi_system_id *id)
 	printk(KERN_INFO DRIVER_NAME": Identified laptop model '%s'\n",
 		id->ident);
 	extra_features = false;
-	return 0;
+	return 1;
 }
 
 static int dmi_check_cb_extra(const struct dmi_system_id *id)
@@ -772,7 +772,7 @@ static int dmi_check_cb_extra(const struct dmi_system_id *id)
 		"enabling extra features\n",
 		id->ident);
 	extra_features = true;
-	return 0;
+	return 1;
 }
 
 static struct dmi_system_id __initdata compal_dmi_table[] = {
diff --git a/drivers/platform/x86/dell-wmi-aio.c b/drivers/platform/x86/dell-wmi-aio.c
new file mode 100644
index 000000000000..0ed84573ae1f
--- /dev/null
+++ b/drivers/platform/x86/dell-wmi-aio.c
@@ -0,0 +1,171 @@
+/*
+ *  WMI hotkeys support for Dell All-In-One series
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/input.h>
+#include <linux/input/sparse-keymap.h>
+#include <acpi/acpi_drivers.h>
+#include <linux/acpi.h>
+#include <linux/string.h>
+
+MODULE_DESCRIPTION("WMI hotkeys driver for Dell All-In-One series");
+MODULE_LICENSE("GPL");
+
+#define EVENT_GUID1 "284A0E6B-380E-472A-921F-E52786257FB4"
+#define EVENT_GUID2 "02314822-307C-4F66-BF0E-48AEAEB26CC8"
+
+static const char *dell_wmi_aio_guids[] = {
+	EVENT_GUID1,
+	EVENT_GUID2,
+	NULL
+};
+
+MODULE_ALIAS("wmi:"EVENT_GUID1);
+MODULE_ALIAS("wmi:"EVENT_GUID2);
+
+static const struct key_entry dell_wmi_aio_keymap[] = {
+	{ KE_KEY, 0xc0, { KEY_VOLUMEUP } },
+	{ KE_KEY, 0xc1, { KEY_VOLUMEDOWN } },
+	{ KE_END, 0 }
+};
+
+static struct input_dev *dell_wmi_aio_input_dev;
+
+static void dell_wmi_aio_notify(u32 value, void *context)
+{
+	struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
+	union acpi_object *obj;
+	acpi_status status;
+
+	status = wmi_get_event_data(value, &response);
+	if (status != AE_OK) {
+		pr_info("bad event status 0x%x\n", status);
+		return;
+	}
+
+	obj = (union acpi_object *)response.pointer;
+	if (obj) {
+		unsigned int scancode;
+
+		switch (obj->type) {
+		case ACPI_TYPE_INTEGER:
+			/* Most All-In-One correctly return integer scancode */
+			scancode = obj->integer.value;
+			sparse_keymap_report_event(dell_wmi_aio_input_dev,
+				scancode, 1, true);
+			break;
+		case ACPI_TYPE_BUFFER:
+			/* Broken machines return the scancode in a buffer */
+			if (obj->buffer.pointer && obj->buffer.length > 0) {
+				scancode = obj->buffer.pointer[0];
+				sparse_keymap_report_event(
+					dell_wmi_aio_input_dev,
+					scancode, 1, true);
+			}
+			break;
+		}
+	}
+	kfree(obj);
+}
+
+static int __init dell_wmi_aio_input_setup(void)
+{
+	int err;
+
+	dell_wmi_aio_input_dev = input_allocate_device();
+
+	if (!dell_wmi_aio_input_dev)
+		return -ENOMEM;
+
+	dell_wmi_aio_input_dev->name = "Dell AIO WMI hotkeys";
+	dell_wmi_aio_input_dev->phys = "wmi/input0";
+	dell_wmi_aio_input_dev->id.bustype = BUS_HOST;
+
+	err = sparse_keymap_setup(dell_wmi_aio_input_dev,
+			dell_wmi_aio_keymap, NULL);
+	if (err) {
+		pr_err("Unable to setup input device keymap\n");
+		goto err_free_dev;
+	}
+	err = input_register_device(dell_wmi_aio_input_dev);
+	if (err) {
+		pr_info("Unable to register input device\n");
+		goto err_free_keymap;
+	}
+	return 0;
+
+err_free_keymap:
+	sparse_keymap_free(dell_wmi_aio_input_dev);
+err_free_dev:
+	input_free_device(dell_wmi_aio_input_dev);
+	return err;
+}
+
+static const char *dell_wmi_aio_find(void)
+{
+	int i;
+
+	for (i = 0; dell_wmi_aio_guids[i] != NULL; i++)
+		if (wmi_has_guid(dell_wmi_aio_guids[i]))
+			return dell_wmi_aio_guids[i];
+
+	return NULL;
+}
+
+static int __init dell_wmi_aio_init(void)
+{
+	int err;
+	const char *guid;
+
+	guid = dell_wmi_aio_find();
+	if (!guid) {
+		pr_warning("No known WMI GUID found\n");
+		return -ENXIO;
+	}
+
+	err = dell_wmi_aio_input_setup();
+	if (err)
+		return err;
+
+	err = wmi_install_notify_handler(guid, dell_wmi_aio_notify, NULL);
+	if (err) {
+		pr_err("Unable to register notify handler - %d\n", err);
+		sparse_keymap_free(dell_wmi_aio_input_dev);
+		input_unregister_device(dell_wmi_aio_input_dev);
+		return err;
+	}
+
+	return 0;
+}
+
+static void __exit dell_wmi_aio_exit(void)
+{
+	const char *guid;
+
+	guid = dell_wmi_aio_find();
+	wmi_remove_notify_handler(guid);
+	sparse_keymap_free(dell_wmi_aio_input_dev);
+	input_unregister_device(dell_wmi_aio_input_dev);
+}
+
+module_init(dell_wmi_aio_init);
+module_exit(dell_wmi_aio_exit);
diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c
index 6605beac0d0e..5f2dd386152b 100644
--- a/drivers/platform/x86/eeepc-laptop.c
+++ b/drivers/platform/x86/eeepc-laptop.c
@@ -1322,7 +1322,7 @@ static void cmsg_quirk(struct eeepc_laptop *eeepc, int cm, const char *name)
 {
 	int dummy;
 
-	/* Some BIOSes do not report cm although it is avaliable.
+	/* Some BIOSes do not report cm although it is available.
 	   Check if cm_getv[cm] works and, if yes, assume cm should be set. */
 	if (!(eeepc->cm_supported & (1 << cm))
 	    && !read_acpi_int(eeepc->handle, cm_getv[cm], &dummy)) {
diff --git a/drivers/platform/x86/eeepc-wmi.c b/drivers/platform/x86/eeepc-wmi.c
index 4d38f98aa976..0ddc434fb93b 100644
--- a/drivers/platform/x86/eeepc-wmi.c
+++ b/drivers/platform/x86/eeepc-wmi.c
@@ -2,7 +2,7 @@
  * Eee PC WMI hotkey driver
  *
  * Copyright(C) 2010 Intel Corporation.
- * Copyright(C) 2010 Corentin Chary <corentin.chary@gmail.com>
+ * Copyright(C) 2010-2011 Corentin Chary <corentin.chary@gmail.com>
  *
  * Portions based on wistron_btns.c:
  * Copyright (C) 2005 Miloslav Trmac <mitr@volny.cz>
@@ -29,841 +29,57 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/init.h>
-#include <linux/types.h>
-#include <linux/slab.h>
 #include <linux/input.h>
 #include <linux/input/sparse-keymap.h>
-#include <linux/fb.h>
-#include <linux/backlight.h>
-#include <linux/leds.h>
-#include <linux/rfkill.h>
-#include <linux/debugfs.h>
-#include <linux/seq_file.h>
-#include <linux/platform_device.h>
+#include <linux/dmi.h>
 #include <acpi/acpi_bus.h>
-#include <acpi/acpi_drivers.h>
+
+#include "asus-wmi.h"
 
 #define	EEEPC_WMI_FILE	"eeepc-wmi"
 
-MODULE_AUTHOR("Yong Wang <yong.y.wang@intel.com>");
+MODULE_AUTHOR("Corentin Chary <corentincj@iksaif.net>");
 MODULE_DESCRIPTION("Eee PC WMI Hotkey Driver");
 MODULE_LICENSE("GPL");
 
 #define EEEPC_ACPI_HID		"ASUS010" /* old _HID used in eeepc-laptop */
 
 #define EEEPC_WMI_EVENT_GUID	"ABBC0F72-8EA1-11D1-00A0-C90629100000"
-#define EEEPC_WMI_MGMT_GUID	"97845ED0-4E6D-11DE-8A39-0800200C9A66"
 
 MODULE_ALIAS("wmi:"EEEPC_WMI_EVENT_GUID);
-MODULE_ALIAS("wmi:"EEEPC_WMI_MGMT_GUID);
-
-#define NOTIFY_BRNUP_MIN	0x11
-#define NOTIFY_BRNUP_MAX	0x1f
-#define NOTIFY_BRNDOWN_MIN	0x20
-#define NOTIFY_BRNDOWN_MAX	0x2e
 
-#define EEEPC_WMI_METHODID_DEVS	0x53564544
-#define EEEPC_WMI_METHODID_DSTS	0x53544344
-#define EEEPC_WMI_METHODID_CFVS	0x53564643
+static bool hotplug_wireless;
 
-#define EEEPC_WMI_DEVID_BACKLIGHT	0x00050012
-#define EEEPC_WMI_DEVID_TPDLED		0x00100011
-#define EEEPC_WMI_DEVID_WLAN		0x00010011
-#define EEEPC_WMI_DEVID_BLUETOOTH	0x00010013
-#define EEEPC_WMI_DEVID_WWAN3G		0x00010019
+module_param(hotplug_wireless, bool, 0444);
+MODULE_PARM_DESC(hotplug_wireless,
+		 "Enable hotplug for wireless device. "
+		 "If your laptop needs that, please report to "
+		 "acpi4asus-user@lists.sourceforge.net.");
 
 static const struct key_entry eeepc_wmi_keymap[] = {
 	/* Sleep already handled via generic ACPI code */
-	{ KE_KEY, 0x5d, { KEY_WLAN } },
-	{ KE_KEY, 0x32, { KEY_MUTE } },
-	{ KE_KEY, 0x31, { KEY_VOLUMEDOWN } },
 	{ KE_KEY, 0x30, { KEY_VOLUMEUP } },
-	{ KE_IGNORE, NOTIFY_BRNDOWN_MIN, { KEY_BRIGHTNESSDOWN } },
-	{ KE_IGNORE, NOTIFY_BRNUP_MIN, { KEY_BRIGHTNESSUP } },
+	{ KE_KEY, 0x31, { KEY_VOLUMEDOWN } },
+	{ KE_KEY, 0x32, { KEY_MUTE } },
+	{ KE_KEY, 0x5c, { KEY_F15 } }, /* Power Gear key */
+	{ KE_KEY, 0x5d, { KEY_WLAN } },
+	{ KE_KEY, 0x6b, { KEY_TOUCHPAD_TOGGLE } }, /* Toggle Touchpad */
+	{ KE_KEY, 0x82, { KEY_CAMERA } },
+	{ KE_KEY, 0x83, { KEY_CAMERA_ZOOMIN } },
+	{ KE_KEY, 0x88, { KEY_WLAN } },
 	{ KE_KEY, 0xcc, { KEY_SWITCHVIDEOMODE } },
-	{ KE_KEY, 0x6b, { KEY_F13 } }, /* Disable Touchpad */
-	{ KE_KEY, 0xe1, { KEY_F14 } },
-	{ KE_KEY, 0xe9, { KEY_DISPLAY_OFF } },
-	{ KE_KEY, 0xe0, { KEY_PROG1 } },
-	{ KE_KEY, 0x5c, { KEY_F15 } },
+	{ KE_KEY, 0xe0, { KEY_PROG1 } }, /* Task Manager */
+	{ KE_KEY, 0xe1, { KEY_F14 } }, /* Change Resolution */
+	{ KE_KEY, 0xe9, { KEY_BRIGHTNESS_ZERO } },
+	{ KE_KEY, 0xeb, { KEY_CAMERA_ZOOMOUT } },
+	{ KE_KEY, 0xec, { KEY_CAMERA_UP } },
+	{ KE_KEY, 0xed, { KEY_CAMERA_DOWN } },
+	{ KE_KEY, 0xee, { KEY_CAMERA_LEFT } },
+	{ KE_KEY, 0xef, { KEY_CAMERA_RIGHT } },
 	{ KE_END, 0},
 };
 
-struct bios_args {
-	u32	dev_id;
-	u32	ctrl_param;
-};
-
-/*
- * eeepc-wmi/    - debugfs root directory
- *   dev_id      - current dev_id
- *   ctrl_param  - current ctrl_param
- *   devs        - call DEVS(dev_id, ctrl_param) and print result
- *   dsts        - call DSTS(dev_id)  and print result
- */
-struct eeepc_wmi_debug {
-	struct dentry *root;
-	u32 dev_id;
-	u32 ctrl_param;
-};
-
-struct eeepc_wmi {
-	struct input_dev *inputdev;
-	struct backlight_device *backlight_device;
-	struct platform_device *platform_device;
-
-	struct led_classdev tpd_led;
-	int tpd_led_wk;
-	struct workqueue_struct *led_workqueue;
-	struct work_struct tpd_led_work;
-
-	struct rfkill *wlan_rfkill;
-	struct rfkill *bluetooth_rfkill;
-	struct rfkill *wwan3g_rfkill;
-
-	struct eeepc_wmi_debug debug;
-};
-
-/* Only used in eeepc_wmi_init() and eeepc_wmi_exit() */
-static struct platform_device *platform_device;
-
-static int eeepc_wmi_input_init(struct eeepc_wmi *eeepc)
-{
-	int err;
-
-	eeepc->inputdev = input_allocate_device();
-	if (!eeepc->inputdev)
-		return -ENOMEM;
-
-	eeepc->inputdev->name = "Eee PC WMI hotkeys";
-	eeepc->inputdev->phys = EEEPC_WMI_FILE "/input0";
-	eeepc->inputdev->id.bustype = BUS_HOST;
-	eeepc->inputdev->dev.parent = &eeepc->platform_device->dev;
-
-	err = sparse_keymap_setup(eeepc->inputdev, eeepc_wmi_keymap, NULL);
-	if (err)
-		goto err_free_dev;
-
-	err = input_register_device(eeepc->inputdev);
-	if (err)
-		goto err_free_keymap;
-
-	return 0;
-
-err_free_keymap:
-	sparse_keymap_free(eeepc->inputdev);
-err_free_dev:
-	input_free_device(eeepc->inputdev);
-	return err;
-}
-
-static void eeepc_wmi_input_exit(struct eeepc_wmi *eeepc)
-{
-	if (eeepc->inputdev) {
-		sparse_keymap_free(eeepc->inputdev);
-		input_unregister_device(eeepc->inputdev);
-	}
-
-	eeepc->inputdev = NULL;
-}
-
-static acpi_status eeepc_wmi_get_devstate(u32 dev_id, u32 *retval)
-{
-	struct acpi_buffer input = { (acpi_size)sizeof(u32), &dev_id };
-	struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
-	union acpi_object *obj;
-	acpi_status status;
-	u32 tmp;
-
-	status = wmi_evaluate_method(EEEPC_WMI_MGMT_GUID,
-			1, EEEPC_WMI_METHODID_DSTS, &input, &output);
-
-	if (ACPI_FAILURE(status))
-		return status;
-
-	obj = (union acpi_object *)output.pointer;
-	if (obj && obj->type == ACPI_TYPE_INTEGER)
-		tmp = (u32)obj->integer.value;
-	else
-		tmp = 0;
-
-	if (retval)
-		*retval = tmp;
-
-	kfree(obj);
-
-	return status;
-
-}
-
-static acpi_status eeepc_wmi_set_devstate(u32 dev_id, u32 ctrl_param,
-					  u32 *retval)
-{
-	struct bios_args args = {
-		.dev_id = dev_id,
-		.ctrl_param = ctrl_param,
-	};
-	struct acpi_buffer input = { (acpi_size)sizeof(args), &args };
-	acpi_status status;
-
-	if (!retval) {
-		status = wmi_evaluate_method(EEEPC_WMI_MGMT_GUID, 1,
-					     EEEPC_WMI_METHODID_DEVS,
-					     &input, NULL);
-	} else {
-		struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
-		union acpi_object *obj;
-		u32 tmp;
-
-		status = wmi_evaluate_method(EEEPC_WMI_MGMT_GUID, 1,
-					     EEEPC_WMI_METHODID_DEVS,
-					     &input, &output);
-
-		if (ACPI_FAILURE(status))
-			return status;
-
-		obj = (union acpi_object *)output.pointer;
-		if (obj && obj->type == ACPI_TYPE_INTEGER)
-			tmp = (u32)obj->integer.value;
-		else
-			tmp = 0;
-
-		*retval = tmp;
-
-		kfree(obj);
-	}
-
-	return status;
-}
-
-/*
- * LEDs
- */
-/*
- * These functions actually update the LED's, and are called from a
- * workqueue. By doing this as separate work rather than when the LED
- * subsystem asks, we avoid messing with the Eeepc ACPI stuff during a
- * potentially bad time, such as a timer interrupt.
- */
-static void tpd_led_update(struct work_struct *work)
-{
-	int ctrl_param;
-	struct eeepc_wmi *eeepc;
-
-	eeepc = container_of(work, struct eeepc_wmi, tpd_led_work);
-
-	ctrl_param = eeepc->tpd_led_wk;
-	eeepc_wmi_set_devstate(EEEPC_WMI_DEVID_TPDLED, ctrl_param, NULL);
-}
-
-static void tpd_led_set(struct led_classdev *led_cdev,
-			enum led_brightness value)
-{
-	struct eeepc_wmi *eeepc;
-
-	eeepc = container_of(led_cdev, struct eeepc_wmi, tpd_led);
-
-	eeepc->tpd_led_wk = !!value;
-	queue_work(eeepc->led_workqueue, &eeepc->tpd_led_work);
-}
-
-static int read_tpd_state(struct eeepc_wmi *eeepc)
-{
-	u32 retval;
-	acpi_status status;
-
-	status = eeepc_wmi_get_devstate(EEEPC_WMI_DEVID_TPDLED, &retval);
-
-	if (ACPI_FAILURE(status))
-		return -1;
-	else if (!retval || retval == 0x00060000)
-		/*
-		 * if touchpad led is present, DSTS will set some bits,
-		 * usually 0x00020000.
-		 * 0x00060000 means that the device is not supported
-		 */
-		return -ENODEV;
-	else
-		/* Status is stored in the first bit */
-		return retval & 0x1;
-}
-
-static enum led_brightness tpd_led_get(struct led_classdev *led_cdev)
-{
-	struct eeepc_wmi *eeepc;
-
-	eeepc = container_of(led_cdev, struct eeepc_wmi, tpd_led);
-
-	return read_tpd_state(eeepc);
-}
-
-static int eeepc_wmi_led_init(struct eeepc_wmi *eeepc)
-{
-	int rv;
-
-	if (read_tpd_state(eeepc) < 0)
-		return 0;
-
-	eeepc->led_workqueue = create_singlethread_workqueue("led_workqueue");
-	if (!eeepc->led_workqueue)
-		return -ENOMEM;
-	INIT_WORK(&eeepc->tpd_led_work, tpd_led_update);
-
-	eeepc->tpd_led.name = "eeepc::touchpad";
-	eeepc->tpd_led.brightness_set = tpd_led_set;
-	eeepc->tpd_led.brightness_get = tpd_led_get;
-	eeepc->tpd_led.max_brightness = 1;
-
-	rv = led_classdev_register(&eeepc->platform_device->dev,
-				   &eeepc->tpd_led);
-	if (rv) {
-		destroy_workqueue(eeepc->led_workqueue);
-		return rv;
-	}
-
-	return 0;
-}
-
-static void eeepc_wmi_led_exit(struct eeepc_wmi *eeepc)
-{
-	if (eeepc->tpd_led.dev)
-		led_classdev_unregister(&eeepc->tpd_led);
-	if (eeepc->led_workqueue)
-		destroy_workqueue(eeepc->led_workqueue);
-}
-
-/*
- * Rfkill devices
- */
-static int eeepc_rfkill_set(void *data, bool blocked)
-{
-	int dev_id = (unsigned long)data;
-	u32 ctrl_param = !blocked;
-
-	return eeepc_wmi_set_devstate(dev_id, ctrl_param, NULL);
-}
-
-static void eeepc_rfkill_query(struct rfkill *rfkill, void *data)
-{
-	int dev_id = (unsigned long)data;
-	u32 retval;
-	acpi_status status;
-
-	status = eeepc_wmi_get_devstate(dev_id, &retval);
-
-	if (ACPI_FAILURE(status))
-		return ;
-
-	rfkill_set_sw_state(rfkill, !(retval & 0x1));
-}
-
-static const struct rfkill_ops eeepc_rfkill_ops = {
-	.set_block = eeepc_rfkill_set,
-	.query = eeepc_rfkill_query,
-};
-
-static int eeepc_new_rfkill(struct eeepc_wmi *eeepc,
-			    struct rfkill **rfkill,
-			    const char *name,
-			    enum rfkill_type type, int dev_id)
-{
-	int result;
-	u32 retval;
-	acpi_status status;
-
-	status = eeepc_wmi_get_devstate(dev_id, &retval);
-
-	if (ACPI_FAILURE(status))
-		return -1;
-
-	/* If the device is present, DSTS will always set some bits
-	 * 0x00070000 - 1110000000000000000 - device supported
-	 * 0x00060000 - 1100000000000000000 - not supported
-	 * 0x00020000 - 0100000000000000000 - device supported
-	 * 0x00010000 - 0010000000000000000 - not supported / special mode ?
-	 */
-	if (!retval || retval == 0x00060000)
-		return -ENODEV;
-
-	*rfkill = rfkill_alloc(name, &eeepc->platform_device->dev, type,
-			       &eeepc_rfkill_ops, (void *)(long)dev_id);
-
-	if (!*rfkill)
-		return -EINVAL;
-
-	rfkill_init_sw_state(*rfkill, !(retval & 0x1));
-	result = rfkill_register(*rfkill);
-	if (result) {
-		rfkill_destroy(*rfkill);
-		*rfkill = NULL;
-		return result;
-	}
-	return 0;
-}
-
-static void eeepc_wmi_rfkill_exit(struct eeepc_wmi *eeepc)
-{
-	if (eeepc->wlan_rfkill) {
-		rfkill_unregister(eeepc->wlan_rfkill);
-		rfkill_destroy(eeepc->wlan_rfkill);
-		eeepc->wlan_rfkill = NULL;
-	}
-	if (eeepc->bluetooth_rfkill) {
-		rfkill_unregister(eeepc->bluetooth_rfkill);
-		rfkill_destroy(eeepc->bluetooth_rfkill);
-		eeepc->bluetooth_rfkill = NULL;
-	}
-	if (eeepc->wwan3g_rfkill) {
-		rfkill_unregister(eeepc->wwan3g_rfkill);
-		rfkill_destroy(eeepc->wwan3g_rfkill);
-		eeepc->wwan3g_rfkill = NULL;
-	}
-}
-
-static int eeepc_wmi_rfkill_init(struct eeepc_wmi *eeepc)
-{
-	int result = 0;
-
-	result = eeepc_new_rfkill(eeepc, &eeepc->wlan_rfkill,
-				  "eeepc-wlan", RFKILL_TYPE_WLAN,
-				  EEEPC_WMI_DEVID_WLAN);
-
-	if (result && result != -ENODEV)
-		goto exit;
-
-	result = eeepc_new_rfkill(eeepc, &eeepc->bluetooth_rfkill,
-				  "eeepc-bluetooth", RFKILL_TYPE_BLUETOOTH,
-				  EEEPC_WMI_DEVID_BLUETOOTH);
-
-	if (result && result != -ENODEV)
-		goto exit;
-
-	result = eeepc_new_rfkill(eeepc, &eeepc->wwan3g_rfkill,
-				  "eeepc-wwan3g", RFKILL_TYPE_WWAN,
-				  EEEPC_WMI_DEVID_WWAN3G);
-
-	if (result && result != -ENODEV)
-		goto exit;
-
-exit:
-	if (result && result != -ENODEV)
-		eeepc_wmi_rfkill_exit(eeepc);
-
-	if (result == -ENODEV)
-		result = 0;
-
-	return result;
-}
-
-/*
- * Backlight
- */
-static int read_brightness(struct backlight_device *bd)
-{
-	u32 retval;
-	acpi_status status;
-
-	status = eeepc_wmi_get_devstate(EEEPC_WMI_DEVID_BACKLIGHT, &retval);
-
-	if (ACPI_FAILURE(status))
-		return -1;
-	else
-		return retval & 0xFF;
-}
-
-static int update_bl_status(struct backlight_device *bd)
-{
-
-	u32 ctrl_param;
-	acpi_status status;
-
-	ctrl_param = bd->props.brightness;
-
-	status = eeepc_wmi_set_devstate(EEEPC_WMI_DEVID_BACKLIGHT,
-					ctrl_param, NULL);
-
-	if (ACPI_FAILURE(status))
-		return -1;
-	else
-		return 0;
-}
-
-static const struct backlight_ops eeepc_wmi_bl_ops = {
-	.get_brightness = read_brightness,
-	.update_status = update_bl_status,
-};
-
-static int eeepc_wmi_backlight_notify(struct eeepc_wmi *eeepc, int code)
-{
-	struct backlight_device *bd = eeepc->backlight_device;
-	int old = bd->props.brightness;
-	int new = old;
-
-	if (code >= NOTIFY_BRNUP_MIN && code <= NOTIFY_BRNUP_MAX)
-		new = code - NOTIFY_BRNUP_MIN + 1;
-	else if (code >= NOTIFY_BRNDOWN_MIN && code <= NOTIFY_BRNDOWN_MAX)
-		new = code - NOTIFY_BRNDOWN_MIN;
-
-	bd->props.brightness = new;
-	backlight_update_status(bd);
-	backlight_force_update(bd, BACKLIGHT_UPDATE_HOTKEY);
-
-	return old;
-}
-
-static int eeepc_wmi_backlight_init(struct eeepc_wmi *eeepc)
-{
-	struct backlight_device *bd;
-	struct backlight_properties props;
-
-	memset(&props, 0, sizeof(struct backlight_properties));
-	props.max_brightness = 15;
-	bd = backlight_device_register(EEEPC_WMI_FILE,
-				       &eeepc->platform_device->dev, eeepc,
-				       &eeepc_wmi_bl_ops, &props);
-	if (IS_ERR(bd)) {
-		pr_err("Could not register backlight device\n");
-		return PTR_ERR(bd);
-	}
-
-	eeepc->backlight_device = bd;
-
-	bd->props.brightness = read_brightness(bd);
-	bd->props.power = FB_BLANK_UNBLANK;
-	backlight_update_status(bd);
-
-	return 0;
-}
-
-static void eeepc_wmi_backlight_exit(struct eeepc_wmi *eeepc)
-{
-	if (eeepc->backlight_device)
-		backlight_device_unregister(eeepc->backlight_device);
-
-	eeepc->backlight_device = NULL;
-}
-
-static void eeepc_wmi_notify(u32 value, void *context)
-{
-	struct eeepc_wmi *eeepc = context;
-	struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
-	union acpi_object *obj;
-	acpi_status status;
-	int code;
-	int orig_code;
-
-	status = wmi_get_event_data(value, &response);
-	if (status != AE_OK) {
-		pr_err("bad event status 0x%x\n", status);
-		return;
-	}
-
-	obj = (union acpi_object *)response.pointer;
-
-	if (obj && obj->type == ACPI_TYPE_INTEGER) {
-		code = obj->integer.value;
-		orig_code = code;
-
-		if (code >= NOTIFY_BRNUP_MIN && code <= NOTIFY_BRNUP_MAX)
-			code = NOTIFY_BRNUP_MIN;
-		else if (code >= NOTIFY_BRNDOWN_MIN &&
-			 code <= NOTIFY_BRNDOWN_MAX)
-			code = NOTIFY_BRNDOWN_MIN;
-
-		if (code == NOTIFY_BRNUP_MIN || code == NOTIFY_BRNDOWN_MIN) {
-			if (!acpi_video_backlight_support())
-				eeepc_wmi_backlight_notify(eeepc, orig_code);
-		}
-
-		if (!sparse_keymap_report_event(eeepc->inputdev,
-						code, 1, true))
-			pr_info("Unknown key %x pressed\n", code);
-	}
-
-	kfree(obj);
-}
-
-static ssize_t store_cpufv(struct device *dev, struct device_attribute *attr,
-			   const char *buf, size_t count)
-{
-	int value;
-	struct acpi_buffer input = { (acpi_size)sizeof(value), &value };
-	acpi_status status;
-
-	if (!count || sscanf(buf, "%i", &value) != 1)
-		return -EINVAL;
-	if (value < 0 || value > 2)
-		return -EINVAL;
-
-	status = wmi_evaluate_method(EEEPC_WMI_MGMT_GUID,
-				     1, EEEPC_WMI_METHODID_CFVS, &input, NULL);
-
-	if (ACPI_FAILURE(status))
-		return -EIO;
-	else
-		return count;
-}
-
-static DEVICE_ATTR(cpufv, S_IRUGO | S_IWUSR, NULL, store_cpufv);
-
-static struct attribute *platform_attributes[] = {
-	&dev_attr_cpufv.attr,
-	NULL
-};
-
-static struct attribute_group platform_attribute_group = {
-	.attrs = platform_attributes
-};
-
-static void eeepc_wmi_sysfs_exit(struct platform_device *device)
-{
-	sysfs_remove_group(&device->dev.kobj, &platform_attribute_group);
-}
-
-static int eeepc_wmi_sysfs_init(struct platform_device *device)
-{
-	return sysfs_create_group(&device->dev.kobj, &platform_attribute_group);
-}
-
-/*
- * Platform device
- */
-static int __init eeepc_wmi_platform_init(struct eeepc_wmi *eeepc)
-{
-	int err;
-
-	eeepc->platform_device = platform_device_alloc(EEEPC_WMI_FILE, -1);
-	if (!eeepc->platform_device)
-		return -ENOMEM;
-	platform_set_drvdata(eeepc->platform_device, eeepc);
-
-	err = platform_device_add(eeepc->platform_device);
-	if (err)
-		goto fail_platform_device;
-
-	err = eeepc_wmi_sysfs_init(eeepc->platform_device);
-	if (err)
-		goto fail_sysfs;
-	return 0;
-
-fail_sysfs:
-	platform_device_del(eeepc->platform_device);
-fail_platform_device:
-	platform_device_put(eeepc->platform_device);
-	return err;
-}
-
-static void eeepc_wmi_platform_exit(struct eeepc_wmi *eeepc)
-{
-	eeepc_wmi_sysfs_exit(eeepc->platform_device);
-	platform_device_unregister(eeepc->platform_device);
-}
-
-/*
- * debugfs
- */
-struct eeepc_wmi_debugfs_node {
-	struct eeepc_wmi *eeepc;
-	char *name;
-	int (*show)(struct seq_file *m, void *data);
-};
-
-static int show_dsts(struct seq_file *m, void *data)
-{
-	struct eeepc_wmi *eeepc = m->private;
-	acpi_status status;
-	u32 retval = -1;
-
-	status = eeepc_wmi_get_devstate(eeepc->debug.dev_id, &retval);
-
-	if (ACPI_FAILURE(status))
-		return -EIO;
-
-	seq_printf(m, "DSTS(%x) = %x\n", eeepc->debug.dev_id, retval);
-
-	return 0;
-}
-
-static int show_devs(struct seq_file *m, void *data)
-{
-	struct eeepc_wmi *eeepc = m->private;
-	acpi_status status;
-	u32 retval = -1;
-
-	status = eeepc_wmi_set_devstate(eeepc->debug.dev_id,
-					eeepc->debug.ctrl_param, &retval);
-	if (ACPI_FAILURE(status))
-		return -EIO;
-
-	seq_printf(m, "DEVS(%x, %x) = %x\n", eeepc->debug.dev_id,
-		   eeepc->debug.ctrl_param, retval);
-
-	return 0;
-}
-
-static struct eeepc_wmi_debugfs_node eeepc_wmi_debug_files[] = {
-	{ NULL, "devs", show_devs },
-	{ NULL, "dsts", show_dsts },
-};
-
-static int eeepc_wmi_debugfs_open(struct inode *inode, struct file *file)
-{
-	struct eeepc_wmi_debugfs_node *node = inode->i_private;
-
-	return single_open(file, node->show, node->eeepc);
-}
-
-static const struct file_operations eeepc_wmi_debugfs_io_ops = {
-	.owner = THIS_MODULE,
-	.open  = eeepc_wmi_debugfs_open,
-	.read = seq_read,
-	.llseek = seq_lseek,
-	.release = single_release,
-};
-
-static void eeepc_wmi_debugfs_exit(struct eeepc_wmi *eeepc)
-{
-	debugfs_remove_recursive(eeepc->debug.root);
-}
-
-static int eeepc_wmi_debugfs_init(struct eeepc_wmi *eeepc)
-{
-	struct dentry *dent;
-	int i;
-
-	eeepc->debug.root = debugfs_create_dir(EEEPC_WMI_FILE, NULL);
-	if (!eeepc->debug.root) {
-		pr_err("failed to create debugfs directory");
-		goto error_debugfs;
-	}
-
-	dent = debugfs_create_x32("dev_id", S_IRUGO|S_IWUSR,
-				  eeepc->debug.root, &eeepc->debug.dev_id);
-	if (!dent)
-		goto error_debugfs;
-
-	dent = debugfs_create_x32("ctrl_param", S_IRUGO|S_IWUSR,
-				  eeepc->debug.root, &eeepc->debug.ctrl_param);
-	if (!dent)
-		goto error_debugfs;
-
-	for (i = 0; i < ARRAY_SIZE(eeepc_wmi_debug_files); i++) {
-		struct eeepc_wmi_debugfs_node *node = &eeepc_wmi_debug_files[i];
-
-		node->eeepc = eeepc;
-		dent = debugfs_create_file(node->name, S_IFREG | S_IRUGO,
-					   eeepc->debug.root, node,
-					   &eeepc_wmi_debugfs_io_ops);
-		if (!dent) {
-			pr_err("failed to create debug file: %s\n", node->name);
-			goto error_debugfs;
-		}
-	}
-
-	return 0;
-
-error_debugfs:
-	eeepc_wmi_debugfs_exit(eeepc);
-	return -ENOMEM;
-}
-
-/*
- * WMI Driver
- */
-static struct platform_device * __init eeepc_wmi_add(void)
-{
-	struct eeepc_wmi *eeepc;
-	acpi_status status;
-	int err;
-
-	eeepc = kzalloc(sizeof(struct eeepc_wmi), GFP_KERNEL);
-	if (!eeepc)
-		return ERR_PTR(-ENOMEM);
-
-	/*
-	 * Register the platform device first.  It is used as a parent for the
-	 * sub-devices below.
-	 */
-	err = eeepc_wmi_platform_init(eeepc);
-	if (err)
-		goto fail_platform;
-
-	err = eeepc_wmi_input_init(eeepc);
-	if (err)
-		goto fail_input;
-
-	err = eeepc_wmi_led_init(eeepc);
-	if (err)
-		goto fail_leds;
-
-	err = eeepc_wmi_rfkill_init(eeepc);
-	if (err)
-		goto fail_rfkill;
-
-	if (!acpi_video_backlight_support()) {
-		err = eeepc_wmi_backlight_init(eeepc);
-		if (err)
-			goto fail_backlight;
-	} else
-		pr_info("Backlight controlled by ACPI video driver\n");
-
-	status = wmi_install_notify_handler(EEEPC_WMI_EVENT_GUID,
-					    eeepc_wmi_notify, eeepc);
-	if (ACPI_FAILURE(status)) {
-		pr_err("Unable to register notify handler - %d\n",
-			status);
-		err = -ENODEV;
-		goto fail_wmi_handler;
-	}
-
-	err = eeepc_wmi_debugfs_init(eeepc);
-	if (err)
-		goto fail_debugfs;
-
-	return eeepc->platform_device;
-
-fail_debugfs:
-	wmi_remove_notify_handler(EEEPC_WMI_EVENT_GUID);
-fail_wmi_handler:
-	eeepc_wmi_backlight_exit(eeepc);
-fail_backlight:
-	eeepc_wmi_rfkill_exit(eeepc);
-fail_rfkill:
-	eeepc_wmi_led_exit(eeepc);
-fail_leds:
-	eeepc_wmi_input_exit(eeepc);
-fail_input:
-	eeepc_wmi_platform_exit(eeepc);
-fail_platform:
-	kfree(eeepc);
-	return ERR_PTR(err);
-}
-
-static int eeepc_wmi_remove(struct platform_device *device)
-{
-	struct eeepc_wmi *eeepc;
-
-	eeepc = platform_get_drvdata(device);
-	wmi_remove_notify_handler(EEEPC_WMI_EVENT_GUID);
-	eeepc_wmi_backlight_exit(eeepc);
-	eeepc_wmi_input_exit(eeepc);
-	eeepc_wmi_led_exit(eeepc);
-	eeepc_wmi_rfkill_exit(eeepc);
-	eeepc_wmi_debugfs_exit(eeepc);
-	eeepc_wmi_platform_exit(eeepc);
-
-	kfree(eeepc);
-	return 0;
-}
-
-static struct platform_driver platform_driver = {
-	.driver = {
-		.name = EEEPC_WMI_FILE,
-		.owner = THIS_MODULE,
-	},
-};
-
-static acpi_status __init eeepc_wmi_parse_device(acpi_handle handle, u32 level,
+static acpi_status eeepc_wmi_parse_device(acpi_handle handle, u32 level,
 						 void *context, void **retval)
 {
 	pr_warning("Found legacy ATKD device (%s)", EEEPC_ACPI_HID);
@@ -871,7 +87,7 @@ static acpi_status __init eeepc_wmi_parse_device(acpi_handle handle, u32 level,
 	return AE_CTRL_TERMINATE;
 }
 
-static int __init eeepc_wmi_check_atkd(void)
+static int eeepc_wmi_check_atkd(void)
 {
 	acpi_status status;
 	bool found = false;
@@ -884,16 +100,8 @@ static int __init eeepc_wmi_check_atkd(void)
 	return -1;
 }
 
-static int __init eeepc_wmi_init(void)
+static int eeepc_wmi_probe(struct platform_device *pdev)
 {
-	int err;
-
-	if (!wmi_has_guid(EEEPC_WMI_EVENT_GUID) ||
-	    !wmi_has_guid(EEEPC_WMI_MGMT_GUID)) {
-		pr_warning("No known WMI GUID found\n");
-		return -ENODEV;
-	}
-
 	if (eeepc_wmi_check_atkd()) {
 		pr_warning("WMI device present, but legacy ATKD device is also "
 			   "present and enabled.");
@@ -901,33 +109,59 @@ static int __init eeepc_wmi_init(void)
 			   "acpi_osi=\"!Windows 2009\"");
 		pr_warning("Can't load eeepc-wmi, use default acpi_osi "
 			   "(preferred) or eeepc-laptop");
-		return -ENODEV;
+		return -EBUSY;
 	}
+	return 0;
+}
 
-	platform_device = eeepc_wmi_add();
-	if (IS_ERR(platform_device)) {
-		err = PTR_ERR(platform_device);
-		goto fail_eeepc_wmi;
-	}
+static void eeepc_dmi_check(struct asus_wmi_driver *driver)
+{
+	const char *model;
+
+	model = dmi_get_system_info(DMI_PRODUCT_NAME);
+	if (!model)
+		return;
 
-	err = platform_driver_register(&platform_driver);
-	if (err) {
-		pr_warning("Unable to register platform driver\n");
-		goto fail_platform_driver;
+	/*
+	 * Whitelist for wlan hotplug
+	 *
+	 * Asus 1000H needs the current hotplug code to handle
+	 * Fn+F2 correctly. We may add other Asus here later, but
+	 * it seems that most of the laptops supported by asus-wmi
+	 * don't need to be on this list
+	 */
+	if (strcmp(model, "1000H") == 0) {
+		driver->hotplug_wireless = true;
+		pr_info("wlan hotplug enabled\n");
 	}
+}
+
+static void eeepc_wmi_quirks(struct asus_wmi_driver *driver)
+{
+	driver->hotplug_wireless = hotplug_wireless;
+	eeepc_dmi_check(driver);
+}
+
+static struct asus_wmi_driver asus_wmi_driver = {
+	.name = EEEPC_WMI_FILE,
+	.owner = THIS_MODULE,
+	.event_guid = EEEPC_WMI_EVENT_GUID,
+	.keymap = eeepc_wmi_keymap,
+	.input_name = "Eee PC WMI hotkeys",
+	.input_phys = EEEPC_WMI_FILE "/input0",
+	.probe = eeepc_wmi_probe,
+	.quirks = eeepc_wmi_quirks,
+};
 
-	return 0;
 
-fail_platform_driver:
-	eeepc_wmi_remove(platform_device);
-fail_eeepc_wmi:
-	return err;
+static int __init eeepc_wmi_init(void)
+{
+	return asus_wmi_register_driver(&asus_wmi_driver);
 }
 
 static void __exit eeepc_wmi_exit(void)
 {
-	eeepc_wmi_remove(platform_device);
-	platform_driver_unregister(&platform_driver);
+	asus_wmi_unregister_driver(&asus_wmi_driver);
 }
 
 module_init(eeepc_wmi_init);
diff --git a/drivers/platform/x86/hp-wmi.c b/drivers/platform/x86/hp-wmi.c
index 9e05af9c41cb..1bc4a7539ba9 100644
--- a/drivers/platform/x86/hp-wmi.c
+++ b/drivers/platform/x86/hp-wmi.c
@@ -2,6 +2,7 @@
  * HP WMI hotkeys
  *
  * Copyright (C) 2008 Red Hat <mjg@redhat.com>
+ * Copyright (C) 2010, 2011 Anssi Hannula <anssi.hannula@iki.fi>
  *
  * Portions based on wistron_btns.c:
  * Copyright (C) 2005 Miloslav Trmac <mitr@volny.cz>
@@ -51,6 +52,7 @@ MODULE_ALIAS("wmi:5FB7F034-2C63-45e9-BE91-3D44E2C707E4");
 #define HPWMI_HARDWARE_QUERY 0x4
 #define HPWMI_WIRELESS_QUERY 0x5
 #define HPWMI_HOTKEY_QUERY 0xc
+#define HPWMI_WIRELESS2_QUERY 0x1b
 
 #define PREFIX "HP WMI: "
 #define UNIMP "Unimplemented "
@@ -86,7 +88,46 @@ struct bios_args {
 struct bios_return {
 	u32 sigpass;
 	u32 return_code;
-	u32 value;
+};
+
+enum hp_return_value {
+	HPWMI_RET_WRONG_SIGNATURE	= 0x02,
+	HPWMI_RET_UNKNOWN_COMMAND	= 0x03,
+	HPWMI_RET_UNKNOWN_CMDTYPE	= 0x04,
+	HPWMI_RET_INVALID_PARAMETERS	= 0x05,
+};
+
+enum hp_wireless2_bits {
+	HPWMI_POWER_STATE	= 0x01,
+	HPWMI_POWER_SOFT	= 0x02,
+	HPWMI_POWER_BIOS	= 0x04,
+	HPWMI_POWER_HARD	= 0x08,
+};
+
+#define IS_HWBLOCKED(x) ((x & (HPWMI_POWER_BIOS | HPWMI_POWER_HARD)) \
+			 != (HPWMI_POWER_BIOS | HPWMI_POWER_HARD))
+#define IS_SWBLOCKED(x) !(x & HPWMI_POWER_SOFT)
+
+struct bios_rfkill2_device_state {
+	u8 radio_type;
+	u8 bus_type;
+	u16 vendor_id;
+	u16 product_id;
+	u16 subsys_vendor_id;
+	u16 subsys_product_id;
+	u8 rfkill_id;
+	u8 power;
+	u8 unknown[4];
+};
+
+/* 7 devices fit into the 128 byte buffer */
+#define HPWMI_MAX_RFKILL2_DEVICES	7
+
+struct bios_rfkill2_state {
+	u8 unknown[7];
+	u8 count;
+	u8 pad[8];
+	struct bios_rfkill2_device_state device[HPWMI_MAX_RFKILL2_DEVICES];
 };
 
 static const struct key_entry hp_wmi_keymap[] = {
@@ -108,6 +149,15 @@ static struct rfkill *wifi_rfkill;
 static struct rfkill *bluetooth_rfkill;
 static struct rfkill *wwan_rfkill;
 
+struct rfkill2_device {
+	u8 id;
+	int num;
+	struct rfkill *rfkill;
+};
+
+static int rfkill2_count;
+static struct rfkill2_device rfkill2[HPWMI_MAX_RFKILL2_DEVICES];
+
 static const struct dev_pm_ops hp_wmi_pm_ops = {
 	.resume  = hp_wmi_resume_handler,
 	.restore  = hp_wmi_resume_handler,
@@ -129,7 +179,8 @@ static struct platform_driver hp_wmi_driver = {
  * query:	The commandtype -> What should be queried
  * write:	The command -> 0 read, 1 write, 3 ODM specific
  * buffer:	Buffer used as input and/or output
- * buffersize:	Size of buffer
+ * insize:	Size of input buffer
+ * outsize:	Size of output buffer
  *
  * returns zero on success
  *         an HP WMI query specific error code (which is positive)
@@ -140,25 +191,29 @@ static struct platform_driver hp_wmi_driver = {
  *       size. E.g. Battery info query (0x7) is defined to have 1 byte input
  *       and 128 byte output. The caller would do:
  *       buffer = kzalloc(128, GFP_KERNEL);
- *       ret = hp_wmi_perform_query(0x7, 0, buffer, 128)
+ *       ret = hp_wmi_perform_query(0x7, 0, buffer, 1, 128)
  */
-static int hp_wmi_perform_query(int query, int write, u32 *buffer,
-				int buffersize)
+static int hp_wmi_perform_query(int query, int write, void *buffer,
+				int insize, int outsize)
 {
-	struct bios_return bios_return;
-	acpi_status status;
+	struct bios_return *bios_return;
+	int actual_outsize;
 	union acpi_object *obj;
 	struct bios_args args = {
 		.signature = 0x55434553,
 		.command = write ? 0x2 : 0x1,
 		.commandtype = query,
-		.datasize = buffersize,
-		.data = *buffer,
+		.datasize = insize,
+		.data = 0,
 	};
 	struct acpi_buffer input = { sizeof(struct bios_args), &args };
 	struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
 
-	status = wmi_evaluate_method(HPWMI_BIOS_GUID, 0, 0x3, &input, &output);
+	if (WARN_ON(insize > sizeof(args.data)))
+		return -EINVAL;
+	memcpy(&args.data, buffer, insize);
+
+	wmi_evaluate_method(HPWMI_BIOS_GUID, 0, 0x3, &input, &output);
 
 	obj = output.pointer;
 
@@ -169,10 +224,26 @@ static int hp_wmi_perform_query(int query, int write, u32 *buffer,
 		return -EINVAL;
 	}
 
-	bios_return = *((struct bios_return *)obj->buffer.pointer);
+	bios_return = (struct bios_return *)obj->buffer.pointer;
 
-	memcpy(buffer, &bios_return.value, sizeof(bios_return.value));
+	if (bios_return->return_code) {
+		if (bios_return->return_code != HPWMI_RET_UNKNOWN_CMDTYPE)
+			printk(KERN_WARNING PREFIX "query 0x%x returned "
+						   "error 0x%x\n",
+			       query, bios_return->return_code);
+		kfree(obj);
+		return bios_return->return_code;
+	}
+
+	if (!outsize) {
+		/* ignore output data */
+		kfree(obj);
+		return 0;
+	}
 
+	actual_outsize = min(outsize, (int)(obj->buffer.length - sizeof(*bios_return)));
+	memcpy(buffer, obj->buffer.pointer + sizeof(*bios_return), actual_outsize);
+	memset(buffer + actual_outsize, 0, outsize - actual_outsize);
 	kfree(obj);
 	return 0;
 }
@@ -181,7 +252,7 @@ static int hp_wmi_display_state(void)
 {
 	int state = 0;
 	int ret = hp_wmi_perform_query(HPWMI_DISPLAY_QUERY, 0, &state,
-				       sizeof(state));
+				       sizeof(state), sizeof(state));
 	if (ret)
 		return -EINVAL;
 	return state;
@@ -191,7 +262,7 @@ static int hp_wmi_hddtemp_state(void)
 {
 	int state = 0;
 	int ret = hp_wmi_perform_query(HPWMI_HDDTEMP_QUERY, 0, &state,
-				       sizeof(state));
+				       sizeof(state), sizeof(state));
 	if (ret)
 		return -EINVAL;
 	return state;
@@ -201,7 +272,7 @@ static int hp_wmi_als_state(void)
 {
 	int state = 0;
 	int ret = hp_wmi_perform_query(HPWMI_ALS_QUERY, 0, &state,
-				       sizeof(state));
+				       sizeof(state), sizeof(state));
 	if (ret)
 		return -EINVAL;
 	return state;
@@ -211,7 +282,7 @@ static int hp_wmi_dock_state(void)
 {
 	int state = 0;
 	int ret = hp_wmi_perform_query(HPWMI_HARDWARE_QUERY, 0, &state,
-				       sizeof(state));
+				       sizeof(state), sizeof(state));
 
 	if (ret)
 		return -EINVAL;
@@ -223,7 +294,7 @@ static int hp_wmi_tablet_state(void)
 {
 	int state = 0;
 	int ret = hp_wmi_perform_query(HPWMI_HARDWARE_QUERY, 0, &state,
-				       sizeof(state));
+				       sizeof(state), sizeof(state));
 	if (ret)
 		return ret;
 
@@ -237,7 +308,7 @@ static int hp_wmi_set_block(void *data, bool blocked)
 	int ret;
 
 	ret = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 1,
-				   &query, sizeof(query));
+				   &query, sizeof(query), 0);
 	if (ret)
 		return -EINVAL;
 	return 0;
@@ -252,7 +323,8 @@ static bool hp_wmi_get_sw_state(enum hp_wmi_radio r)
 	int wireless = 0;
 	int mask;
 	hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0,
-			     &wireless, sizeof(wireless));
+			     &wireless, sizeof(wireless),
+			     sizeof(wireless));
 	/* TBD: Pass error */
 
 	mask = 0x200 << (r * 8);
@@ -268,7 +340,8 @@ static bool hp_wmi_get_hw_state(enum hp_wmi_radio r)
 	int wireless = 0;
 	int mask;
 	hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0,
-			     &wireless, sizeof(wireless));
+			     &wireless, sizeof(wireless),
+			     sizeof(wireless));
 	/* TBD: Pass error */
 
 	mask = 0x800 << (r * 8);
@@ -279,6 +352,51 @@ static bool hp_wmi_get_hw_state(enum hp_wmi_radio r)
 		return true;
 }
 
+static int hp_wmi_rfkill2_set_block(void *data, bool blocked)
+{
+	int rfkill_id = (int)(long)data;
+	char buffer[4] = { 0x01, 0x00, rfkill_id, !blocked };
+
+	if (hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, 1,
+				   buffer, sizeof(buffer), 0))
+		return -EINVAL;
+	return 0;
+}
+
+static const struct rfkill_ops hp_wmi_rfkill2_ops = {
+	.set_block = hp_wmi_rfkill2_set_block,
+};
+
+static int hp_wmi_rfkill2_refresh(void)
+{
+	int err, i;
+	struct bios_rfkill2_state state;
+
+	err = hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, 0, &state,
+				   0, sizeof(state));
+	if (err)
+		return err;
+
+	for (i = 0; i < rfkill2_count; i++) {
+		int num = rfkill2[i].num;
+		struct bios_rfkill2_device_state *devstate;
+		devstate = &state.device[num];
+
+		if (num >= state.count ||
+		    devstate->rfkill_id != rfkill2[i].id) {
+			printk(KERN_WARNING PREFIX "power configuration of "
+			       "the wireless devices unexpectedly changed\n");
+			continue;
+		}
+
+		rfkill_set_states(rfkill2[i].rfkill,
+				  IS_SWBLOCKED(devstate->power),
+				  IS_HWBLOCKED(devstate->power));
+	}
+
+	return 0;
+}
+
 static ssize_t show_display(struct device *dev, struct device_attribute *attr,
 			    char *buf)
 {
@@ -329,7 +447,7 @@ static ssize_t set_als(struct device *dev, struct device_attribute *attr,
 {
 	u32 tmp = simple_strtoul(buf, NULL, 10);
 	int ret = hp_wmi_perform_query(HPWMI_ALS_QUERY, 1, &tmp,
-				       sizeof(tmp));
+				       sizeof(tmp), sizeof(tmp));
 	if (ret)
 		return -EINVAL;
 
@@ -402,6 +520,7 @@ static void hp_wmi_notify(u32 value, void *context)
 	case HPWMI_BEZEL_BUTTON:
 		ret = hp_wmi_perform_query(HPWMI_HOTKEY_QUERY, 0,
 					   &key_code,
+					   sizeof(key_code),
 					   sizeof(key_code));
 		if (ret)
 			break;
@@ -412,6 +531,11 @@ static void hp_wmi_notify(u32 value, void *context)
 			       key_code);
 		break;
 	case HPWMI_WIRELESS:
+		if (rfkill2_count) {
+			hp_wmi_rfkill2_refresh();
+			break;
+		}
+
 		if (wifi_rfkill)
 			rfkill_set_states(wifi_rfkill,
 					  hp_wmi_get_sw_state(HPWMI_WIFI),
@@ -502,32 +626,16 @@ static void cleanup_sysfs(struct platform_device *device)
 	device_remove_file(&device->dev, &dev_attr_tablet);
 }
 
-static int __devinit hp_wmi_bios_setup(struct platform_device *device)
+static int __devinit hp_wmi_rfkill_setup(struct platform_device *device)
 {
 	int err;
 	int wireless = 0;
 
 	err = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0, &wireless,
-				   sizeof(wireless));
+				   sizeof(wireless), sizeof(wireless));
 	if (err)
 		return err;
 
-	err = device_create_file(&device->dev, &dev_attr_display);
-	if (err)
-		goto add_sysfs_error;
-	err = device_create_file(&device->dev, &dev_attr_hddtemp);
-	if (err)
-		goto add_sysfs_error;
-	err = device_create_file(&device->dev, &dev_attr_als);
-	if (err)
-		goto add_sysfs_error;
-	err = device_create_file(&device->dev, &dev_attr_dock);
-	if (err)
-		goto add_sysfs_error;
-	err = device_create_file(&device->dev, &dev_attr_tablet);
-	if (err)
-		goto add_sysfs_error;
-
 	if (wireless & 0x1) {
 		wifi_rfkill = rfkill_alloc("hp-wifi", &device->dev,
 					   RFKILL_TYPE_WLAN,
@@ -573,14 +681,131 @@ static int __devinit hp_wmi_bios_setup(struct platform_device *device)
 	return 0;
 register_wwan_err:
 	rfkill_destroy(wwan_rfkill);
+	wwan_rfkill = NULL;
 	if (bluetooth_rfkill)
 		rfkill_unregister(bluetooth_rfkill);
 register_bluetooth_error:
 	rfkill_destroy(bluetooth_rfkill);
+	bluetooth_rfkill = NULL;
 	if (wifi_rfkill)
 		rfkill_unregister(wifi_rfkill);
 register_wifi_error:
 	rfkill_destroy(wifi_rfkill);
+	wifi_rfkill = NULL;
+	return err;
+}
+
+static int __devinit hp_wmi_rfkill2_setup(struct platform_device *device)
+{
+	int err, i;
+	struct bios_rfkill2_state state;
+	err = hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, 0, &state,
+				   0, sizeof(state));
+	if (err)
+		return err;
+
+	if (state.count > HPWMI_MAX_RFKILL2_DEVICES) {
+		printk(KERN_WARNING PREFIX "unable to parse 0x1b query output\n");
+		return -EINVAL;
+	}
+
+	for (i = 0; i < state.count; i++) {
+		struct rfkill *rfkill;
+		enum rfkill_type type;
+		char *name;
+		switch (state.device[i].radio_type) {
+		case HPWMI_WIFI:
+			type = RFKILL_TYPE_WLAN;
+			name = "hp-wifi";
+			break;
+		case HPWMI_BLUETOOTH:
+			type = RFKILL_TYPE_BLUETOOTH;
+			name = "hp-bluetooth";
+			break;
+		case HPWMI_WWAN:
+			type = RFKILL_TYPE_WWAN;
+			name = "hp-wwan";
+			break;
+		default:
+			printk(KERN_WARNING PREFIX "unknown device type 0x%x\n",
+				 state.device[i].radio_type);
+			continue;
+		}
+
+		if (!state.device[i].vendor_id) {
+			printk(KERN_WARNING PREFIX "zero device %d while %d "
+			       "reported\n", i, state.count);
+			continue;
+		}
+
+		rfkill = rfkill_alloc(name, &device->dev, type,
+				      &hp_wmi_rfkill2_ops, (void *)(long)i);
+		if (!rfkill) {
+			err = -ENOMEM;
+			goto fail;
+		}
+
+		rfkill2[rfkill2_count].id = state.device[i].rfkill_id;
+		rfkill2[rfkill2_count].num = i;
+		rfkill2[rfkill2_count].rfkill = rfkill;
+
+		rfkill_init_sw_state(rfkill,
+				     IS_SWBLOCKED(state.device[i].power));
+		rfkill_set_hw_state(rfkill,
+				    IS_HWBLOCKED(state.device[i].power));
+
+		if (!(state.device[i].power & HPWMI_POWER_BIOS))
+			printk(KERN_INFO PREFIX "device %s blocked by BIOS\n",
+			       name);
+
+		err = rfkill_register(rfkill);
+		if (err) {
+			rfkill_destroy(rfkill);
+			goto fail;
+		}
+
+		rfkill2_count++;
+	}
+
+	return 0;
+fail:
+	for (; rfkill2_count > 0; rfkill2_count--) {
+		rfkill_unregister(rfkill2[rfkill2_count - 1].rfkill);
+		rfkill_destroy(rfkill2[rfkill2_count - 1].rfkill);
+	}
+	return err;
+}
+
+static int __devinit hp_wmi_bios_setup(struct platform_device *device)
+{
+	int err;
+
+	/* clear detected rfkill devices */
+	wifi_rfkill = NULL;
+	bluetooth_rfkill = NULL;
+	wwan_rfkill = NULL;
+	rfkill2_count = 0;
+
+	if (hp_wmi_rfkill_setup(device))
+		hp_wmi_rfkill2_setup(device);
+
+	err = device_create_file(&device->dev, &dev_attr_display);
+	if (err)
+		goto add_sysfs_error;
+	err = device_create_file(&device->dev, &dev_attr_hddtemp);
+	if (err)
+		goto add_sysfs_error;
+	err = device_create_file(&device->dev, &dev_attr_als);
+	if (err)
+		goto add_sysfs_error;
+	err = device_create_file(&device->dev, &dev_attr_dock);
+	if (err)
+		goto add_sysfs_error;
+	err = device_create_file(&device->dev, &dev_attr_tablet);
+	if (err)
+		goto add_sysfs_error;
+	return 0;
+
 add_sysfs_error:
 	cleanup_sysfs(device);
 	return err;
@@ -588,8 +813,14 @@ add_sysfs_error:
 
 static int __exit hp_wmi_bios_remove(struct platform_device *device)
 {
+	int i;
 	cleanup_sysfs(device);
 
+	for (i = 0; i < rfkill2_count; i++) {
+		rfkill_unregister(rfkill2[i].rfkill);
+		rfkill_destroy(rfkill2[i].rfkill);
+	}
+
 	if (wifi_rfkill) {
 		rfkill_unregister(wifi_rfkill);
 		rfkill_destroy(wifi_rfkill);
@@ -622,6 +853,9 @@ static int hp_wmi_resume_handler(struct device *device)
 		input_sync(hp_wmi_input_dev);
 	}
 
+	if (rfkill2_count)
+		hp_wmi_rfkill2_refresh();
+
 	if (wifi_rfkill)
 		rfkill_set_states(wifi_rfkill,
 				  hp_wmi_get_sw_state(HPWMI_WIFI),
diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c
index 114d95247cdf..21b101899bae 100644
--- a/drivers/platform/x86/ideapad-laptop.c
+++ b/drivers/platform/x86/ideapad-laptop.c
@@ -459,6 +459,8 @@ static void ideapad_acpi_notify(struct acpi_device *adevice, u32 event)
 		if (test_bit(vpc_bit, &vpc1)) {
 			if (vpc_bit == 9)
 				ideapad_sync_rfk_state(adevice);
+			else if (vpc_bit == 4)
+				read_ec_data(handle, 0x12, &vpc2);
 			else
 				ideapad_input_report(priv, vpc_bit);
 		}
diff --git a/drivers/platform/x86/intel_ips.c b/drivers/platform/x86/intel_ips.c
index 1294a39373ba..85c8ad43c0c5 100644
--- a/drivers/platform/x86/intel_ips.c
+++ b/drivers/platform/x86/intel_ips.c
@@ -1111,7 +1111,7 @@ static int ips_monitor(void *data)
 		last_msecs = jiffies_to_msecs(jiffies);
 		expire = jiffies + msecs_to_jiffies(IPS_SAMPLE_PERIOD);
 
-		__set_current_state(TASK_UNINTERRUPTIBLE);
+		__set_current_state(TASK_INTERRUPTIBLE);
 		mod_timer(&timer, expire);
 		schedule();
 
diff --git a/drivers/platform/x86/intel_mid_powerbtn.c b/drivers/platform/x86/intel_mid_powerbtn.c
new file mode 100644
index 000000000000..213e79ba68d5
--- /dev/null
+++ b/drivers/platform/x86/intel_mid_powerbtn.c
@@ -0,0 +1,148 @@
+/*
+ * Power button driver for Medfield.
+ *
+ * Copyright (C) 2010 Intel Corp
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/slab.h>
+#include <linux/platform_device.h>
+#include <linux/input.h>
+#include <asm/intel_scu_ipc.h>
+
+#define DRIVER_NAME "msic_power_btn"
+
+#define MSIC_IRQ_STAT	0x02
+  #define MSIC_IRQ_PB	(1 << 0)
+#define MSIC_PB_CONFIG	0x3e
+#define MSIC_PB_STATUS	0x3f
+  #define MSIC_PB_LEVEL (1 << 3) /* 1 - release, 0 - press */
+
+struct mfld_pb_priv {
+	struct input_dev *input;
+	unsigned int irq;
+};
+
+static irqreturn_t mfld_pb_isr(int irq, void *dev_id)
+{
+	struct mfld_pb_priv *priv = dev_id;
+	int ret;
+	u8 pbstat;
+
+	ret = intel_scu_ipc_ioread8(MSIC_PB_STATUS, &pbstat);
+	if (ret < 0)
+		return IRQ_HANDLED;
+
+	input_event(priv->input, EV_KEY, KEY_POWER, !(pbstat & MSIC_PB_LEVEL));
+	input_sync(priv->input);
+
+	return IRQ_HANDLED;
+}
+
+static int __devinit mfld_pb_probe(struct platform_device *pdev)
+{
+	struct mfld_pb_priv *priv;
+	struct input_dev *input;
+	int irq;
+	int error;
+
+	irq = platform_get_irq(pdev, 0);
+	if (irq < 0)
+		return -EINVAL;
+
+	priv = kzalloc(sizeof(struct mfld_pb_priv), GFP_KERNEL);
+	input = input_allocate_device();
+	if (!priv || !input) {
+		error = -ENOMEM;
+		goto err_free_mem;
+	}
+
+	priv->input = input;
+	priv->irq = irq;
+
+	input->name = pdev->name;
+	input->phys = "power-button/input0";
+	input->id.bustype = BUS_HOST;
+	input->dev.parent = &pdev->dev;
+
+	input_set_capability(input, EV_KEY, KEY_POWER);
+
+	error = request_threaded_irq(priv->irq, NULL, mfld_pb_isr,
+				     0, DRIVER_NAME, priv);
+	if (error) {
+		dev_err(&pdev->dev,
+			"unable to request irq %d for mfld power button\n",
+			irq);
+		goto err_free_mem;
+	}
+
+	error = input_register_device(input);
+	if (error) {
+		dev_err(&pdev->dev,
+			"unable to register input dev, error %d\n", error);
+		goto err_free_irq;
+	}
+
+	platform_set_drvdata(pdev, priv);
+	return 0;
+
+err_free_irq:
+	free_irq(priv->irq, priv);
+err_free_mem:
+	input_free_device(input);
+	kfree(priv);
+	return error;
+}
+
+static int __devexit mfld_pb_remove(struct platform_device *pdev)
+{
+	struct mfld_pb_priv *priv = platform_get_drvdata(pdev);
+
+	free_irq(priv->irq, priv);
+	input_unregister_device(priv->input);
+	kfree(priv);
+
+	platform_set_drvdata(pdev, NULL);
+	return 0;
+}
+
+static struct platform_driver mfld_pb_driver = {
+	.driver = {
+		.name = DRIVER_NAME,
+		.owner = THIS_MODULE,
+	},
+	.probe	= mfld_pb_probe,
+	.remove	= __devexit_p(mfld_pb_remove),
+};
+
+static int __init mfld_pb_init(void)
+{
+	return platform_driver_register(&mfld_pb_driver);
+}
+module_init(mfld_pb_init);
+
+static void __exit mfld_pb_exit(void)
+{
+	platform_driver_unregister(&mfld_pb_driver);
+}
+module_exit(mfld_pb_exit);
+
+MODULE_AUTHOR("Hong Liu <hong.liu@intel.com>");
+MODULE_DESCRIPTION("Intel Medfield Power Button Driver");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:" DRIVER_NAME);
diff --git a/drivers/platform/x86/intel_mid_thermal.c b/drivers/platform/x86/intel_mid_thermal.c
new file mode 100644
index 000000000000..c2f4bd8013b5
--- /dev/null
+++ b/drivers/platform/x86/intel_mid_thermal.c
@@ -0,0 +1,576 @@
+/*
+ * intel_mid_thermal.c - Intel MID platform thermal driver
+ *
+ * Copyright (C) 2011 Intel Corporation
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.        See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ * Author: Durgadoss R <durgadoss.r@intel.com>
+ */
+
+#define pr_fmt(fmt) "intel_mid_thermal: " fmt
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/param.h>
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/pm.h>
+#include <linux/thermal.h>
+
+#include <asm/intel_scu_ipc.h>
+
+/* Number of thermal sensors */
+#define MSIC_THERMAL_SENSORS   4
+
+/* ADC1 - thermal registers */
+#define MSIC_THERM_ADC1CNTL1   0x1C0
+#define MSIC_ADC_ENBL          0x10
+#define MSIC_ADC_START         0x08
+
+#define MSIC_THERM_ADC1CNTL3   0x1C2
+#define MSIC_ADCTHERM_ENBL     0x04
+#define MSIC_ADCRRDATA_ENBL    0x05
+#define MSIC_CHANL_MASK_VAL    0x0F
+
+#define MSIC_STOPBIT_MASK      16
+#define MSIC_ADCTHERM_MASK     4
+#define ADC_CHANLS_MAX         15 /* Number of ADC channels */
+#define ADC_LOOP_MAX           (ADC_CHANLS_MAX - MSIC_THERMAL_SENSORS)
+
+/* ADC channel code values */
+#define SKIN_SENSOR0_CODE      0x08
+#define SKIN_SENSOR1_CODE      0x09
+#define SYS_SENSOR_CODE                0x0A
+#define MSIC_DIE_SENSOR_CODE   0x03
+
+#define SKIN_THERM_SENSOR0     0
+#define SKIN_THERM_SENSOR1     1
+#define SYS_THERM_SENSOR2      2
+#define MSIC_DIE_THERM_SENSOR3 3
+
+/* ADC code range */
+#define ADC_MAX                        977
+#define ADC_MIN                        162
+#define ADC_VAL0C              887
+#define ADC_VAL20C             720
+#define ADC_VAL40C             508
+#define ADC_VAL60C             315
+
+/* ADC base addresses */
+#define ADC_CHNL_START_ADDR    0x1C5   /* increments by 1 */
+#define ADC_DATA_START_ADDR     0x1D4   /* increments by 2 */
+
+/* MSIC die attributes */
+#define MSIC_DIE_ADC_MIN       488
+#define MSIC_DIE_ADC_MAX       1004
+
+/* This holds the address of the first free ADC channel,
+ * among the 15 channels
+ */
+static int channel_index;
+
+struct platform_info {
+       struct platform_device *pdev;
+       struct thermal_zone_device *tzd[MSIC_THERMAL_SENSORS];
+};
+
+struct thermal_device_info {
+       unsigned int chnl_addr;
+       int direct;
+       /* This holds the current temperature in millidegree celsius */
+       long curr_temp;
+};
+
+/**
+ * to_msic_die_temp - converts adc_val to msic_die temperature
+ * @adc_val: ADC value to be converted
+ *
+ * Can sleep
+ */
+static int to_msic_die_temp(uint16_t adc_val)
+{
+       return (368 * (adc_val) / 1000) - 220;
+}
+
+/**
+ * is_valid_adc - checks whether the adc code is within the defined range
+ * @min: minimum value for the sensor
+ * @max: maximum value for the sensor
+ *
+ * Can sleep
+ */
+static int is_valid_adc(uint16_t adc_val, uint16_t min, uint16_t max)
+{
+       return (adc_val >= min) && (adc_val <= max);
+}
+
+/**
+ * adc_to_temp - converts the ADC code to temperature in C
+ * @direct: true if ths channel is direct index
+ * @adc_val: the adc_val that needs to be converted
+ * @tp: temperature return value
+ *
+ * Linear approximation is used to covert the skin adc value into temperature.
+ * This technique is used to avoid very long look-up table to get
+ * the appropriate temp value from ADC value.
+ * The adc code vs sensor temp curve is split into five parts
+ * to achieve very close approximate temp value with less than
+ * 0.5C error
+ */
+static int adc_to_temp(int direct, uint16_t adc_val, unsigned long *tp)
+{
+       int temp;
+
+       /* Direct conversion for die temperature */
+       if (direct) {
+               if (is_valid_adc(adc_val, MSIC_DIE_ADC_MIN, MSIC_DIE_ADC_MAX)) {
+                       *tp = to_msic_die_temp(adc_val) * 1000;
+                       return 0;
+               }
+               return -ERANGE;
+       }
+
+       if (!is_valid_adc(adc_val, ADC_MIN, ADC_MAX))
+               return -ERANGE;
+
+       /* Linear approximation for skin temperature */
+       if (adc_val > ADC_VAL0C)
+               temp = 177 - (adc_val/5);
+       else if ((adc_val <= ADC_VAL0C) && (adc_val > ADC_VAL20C))
+               temp = 111 - (adc_val/8);
+       else if ((adc_val <= ADC_VAL20C) && (adc_val > ADC_VAL40C))
+               temp = 92 - (adc_val/10);
+       else if ((adc_val <= ADC_VAL40C) && (adc_val > ADC_VAL60C))
+               temp = 91 - (adc_val/10);
+       else
+               temp = 112 - (adc_val/6);
+
+       /* Convert temperature in celsius to milli degree celsius */
+       *tp = temp * 1000;
+       return 0;
+}
+
+/**
+ * mid_read_temp - read sensors for temperature
+ * @temp: holds the current temperature for the sensor after reading
+ *
+ * reads the adc_code from the channel and converts it to real
+ * temperature. The converted value is stored in temp.
+ *
+ * Can sleep
+ */
+static int mid_read_temp(struct thermal_zone_device *tzd, unsigned long *temp)
+{
+       struct thermal_device_info *td_info = tzd->devdata;
+       uint16_t adc_val, addr;
+       uint8_t data = 0;
+       int ret;
+       unsigned long curr_temp;
+
+
+       addr = td_info->chnl_addr;
+
+       /* Enable the msic for conversion before reading */
+       ret = intel_scu_ipc_iowrite8(MSIC_THERM_ADC1CNTL3, MSIC_ADCRRDATA_ENBL);
+       if (ret)
+               return ret;
+
+       /* Re-toggle the RRDATARD bit (temporary workaround) */
+       ret = intel_scu_ipc_iowrite8(MSIC_THERM_ADC1CNTL3, MSIC_ADCTHERM_ENBL);
+       if (ret)
+               return ret;
+
+       /* Read the higher bits of data */
+       ret = intel_scu_ipc_ioread8(addr, &data);
+       if (ret)
+               return ret;
+
+       /* Shift bits to accommodate the lower two data bits */
+       adc_val = (data << 2);
+       addr++;
+
+       ret = intel_scu_ipc_ioread8(addr, &data);/* Read lower bits */
+       if (ret)
+               return ret;
+
+       /* Adding lower two bits to the higher bits */
+       data &= 03;
+       adc_val += data;
+
+       /* Convert ADC value to temperature */
+       ret = adc_to_temp(td_info->direct, adc_val, &curr_temp);
+       if (ret == 0)
+               *temp = td_info->curr_temp = curr_temp;
+       return ret;
+}
+
+/**
+ * configure_adc - enables/disables the ADC for conversion
+ * @val: zero: disables the ADC non-zero:enables the ADC
+ *
+ * Enable/Disable the ADC depending on the argument
+ *
+ * Can sleep
+ */
+static int configure_adc(int val)
+{
+       int ret;
+       uint8_t data;
+
+       ret = intel_scu_ipc_ioread8(MSIC_THERM_ADC1CNTL1, &data);
+       if (ret)
+               return ret;
+
+       if (val) {
+               /* Enable and start the ADC */
+               data |= (MSIC_ADC_ENBL | MSIC_ADC_START);
+       } else {
+               /* Just stop the ADC */
+               data &= (~MSIC_ADC_START);
+       }
+
+       return intel_scu_ipc_iowrite8(MSIC_THERM_ADC1CNTL1, data);
+}
+
+/**
+ * set_up_therm_channel - enable thermal channel for conversion
+ * @base_addr: index of free msic ADC channel
+ *
+ * Enable all the three channels for conversion
+ *
+ * Can sleep
+ */
+static int set_up_therm_channel(u16 base_addr)
+{
+       int ret;
+
+       /* Enable all the sensor channels */
+       ret = intel_scu_ipc_iowrite8(base_addr, SKIN_SENSOR0_CODE);
+       if (ret)
+               return ret;
+
+       ret = intel_scu_ipc_iowrite8(base_addr + 1, SKIN_SENSOR1_CODE);
+       if (ret)
+               return ret;
+
+       ret = intel_scu_ipc_iowrite8(base_addr + 2, SYS_SENSOR_CODE);
+       if (ret)
+               return ret;
+
+       /* Since this is the last channel, set the stop bit
+          to 1 by ORing the DIE_SENSOR_CODE with 0x10 */
+       ret = intel_scu_ipc_iowrite8(base_addr + 3,
+                                       (MSIC_DIE_SENSOR_CODE | 0x10));
+       if (ret)
+               return ret;
+
+       /* Enable ADC and start it */
+       return configure_adc(1);
+}
+
+/**
+ * reset_stopbit - sets the stop bit to 0 on the given channel
+ * @addr: address of the channel
+ *
+ * Can sleep
+ */
+static int reset_stopbit(uint16_t addr)
+{
+       int ret;
+       uint8_t data;
+       ret = intel_scu_ipc_ioread8(addr, &data);
+       if (ret)
+               return ret;
+       /* Set the stop bit to zero */
+       return intel_scu_ipc_iowrite8(addr, (data & 0xEF));
+}
+
+/**
+ * find_free_channel - finds an empty channel for conversion
+ *
+ * If the ADC is not enabled then start using 0th channel
+ * itself. Otherwise find an empty channel by looking for a
+ * channel in which the stopbit is set to 1. returns the index
+ * of the first free channel if succeeds or an error code.
+ *
+ * Context: can sleep
+ *
+ * FIXME: Ultimately the channel allocator will move into the intel_scu_ipc
+ * code.
+ */
+static int find_free_channel(void)
+{
+       int ret;
+       int i;
+       uint8_t data;
+
+       /* check whether ADC is enabled */
+       ret = intel_scu_ipc_ioread8(MSIC_THERM_ADC1CNTL1, &data);
+       if (ret)
+               return ret;
+
+       if ((data & MSIC_ADC_ENBL) == 0)
+               return 0;
+
+       /* ADC is already enabled; Looking for an empty channel */
+       for (i = 0; i < ADC_CHANLS_MAX; i++) {
+               ret = intel_scu_ipc_ioread8(ADC_CHNL_START_ADDR + i, &data);
+               if (ret)
+                       return ret;
+
+               if (data & MSIC_STOPBIT_MASK) {
+                       ret = i;
+                       break;
+               }
+       }
+       return (ret > ADC_LOOP_MAX) ? (-EINVAL) : ret;
+}
+
+/**
+ * mid_initialize_adc - initializing the ADC
+ * @dev: our device structure
+ *
+ * Initialize the ADC for reading thermistor values. Can sleep.
+ */
+static int mid_initialize_adc(struct device *dev)
+{
+       u8  data;
+       u16 base_addr;
+       int ret;
+
+       /*
+        * Ensure that adctherm is disabled before we
+        * initialize the ADC
+        */
+       ret = intel_scu_ipc_ioread8(MSIC_THERM_ADC1CNTL3, &data);
+       if (ret)
+               return ret;
+
+       if (data & MSIC_ADCTHERM_MASK)
+               dev_warn(dev, "ADCTHERM already set");
+
+       /* Index of the first channel in which the stop bit is set */
+       channel_index = find_free_channel();
+       if (channel_index < 0) {
+               dev_err(dev, "No free ADC channels");
+               return channel_index;
+       }
+
+       base_addr = ADC_CHNL_START_ADDR + channel_index;
+
+       if (!(channel_index == 0 || channel_index == ADC_LOOP_MAX)) {
+               /* Reset stop bit for channels other than 0 and 12 */
+               ret = reset_stopbit(base_addr);
+               if (ret)
+                       return ret;
+
+               /* Index of the first free channel */
+               base_addr++;
+               channel_index++;
+       }
+
+       ret = set_up_therm_channel(base_addr);
+       if (ret) {
+               dev_err(dev, "unable to enable ADC");
+               return ret;
+       }
+       dev_dbg(dev, "ADC initialization successful");
+       return ret;
+}
+
+/**
+ * initialize_sensor - sets default temp and timer ranges
+ * @index: index of the sensor
+ *
+ * Context: can sleep
+ */
+static struct thermal_device_info *initialize_sensor(int index)
+{
+       struct thermal_device_info *td_info =
+               kzalloc(sizeof(struct thermal_device_info), GFP_KERNEL);
+
+       if (!td_info)
+               return NULL;
+
+       /* Set the base addr of the channel for this sensor */
+       td_info->chnl_addr = ADC_DATA_START_ADDR + 2 * (channel_index + index);
+       /* Sensor 3 is direct conversion */
+       if (index == 3)
+               td_info->direct = 1;
+       return td_info;
+}
+
+/**
+ * mid_thermal_resume - resume routine
+ * @pdev: platform device structure
+ *
+ * mid thermal resume: re-initializes the adc. Can sleep.
+ */
+static int mid_thermal_resume(struct platform_device *pdev)
+{
+       return mid_initialize_adc(&pdev->dev);
+}
+
+/**
+ * mid_thermal_suspend - suspend routine
+ * @pdev: platform device structure
+ *
+ * mid thermal suspend implements the suspend functionality
+ * by stopping the ADC. Can sleep.
+ */
+static int mid_thermal_suspend(struct platform_device *pdev, pm_message_t mesg)
+{
+       /*
+        * This just stops the ADC and does not disable it.
+        * temporary workaround until we have a generic ADC driver.
+        * If 0 is passed, it disables the ADC.
+        */
+       return configure_adc(0);
+}
+
+/**
+ * read_curr_temp - reads the current temperature and stores in temp
+ * @temp: holds the current temperature value after reading
+ *
+ * Can sleep
+ */
+static int read_curr_temp(struct thermal_zone_device *tzd, unsigned long *temp)
+{
+       WARN_ON(tzd == NULL);
+       return mid_read_temp(tzd, temp);
+}
+
+/* Can't be const */
+static struct thermal_zone_device_ops tzd_ops = {
+       .get_temp = read_curr_temp,
+};
+
+
+/**
+ * mid_thermal_probe - mfld thermal initialize
+ * @pdev: platform device structure
+ *
+ * mid thermal probe initializes the hardware and registers
+ * all the sensors with the generic thermal framework. Can sleep.
+ */
+static int mid_thermal_probe(struct platform_device *pdev)
+{
+       static char *name[MSIC_THERMAL_SENSORS] = {
+               "skin0", "skin1", "sys", "msicdie"
+       };
+
+       int ret;
+       int i;
+       struct platform_info *pinfo;
+
+       pinfo = kzalloc(sizeof(struct platform_info), GFP_KERNEL);
+       if (!pinfo)
+               return -ENOMEM;
+
+       /* Initializing the hardware */
+       ret = mid_initialize_adc(&pdev->dev);
+       if (ret) {
+               dev_err(&pdev->dev, "ADC init failed");
+               kfree(pinfo);
+               return ret;
+       }
+
+       /* Register each sensor with the generic thermal framework*/
+       for (i = 0; i < MSIC_THERMAL_SENSORS; i++) {
+               pinfo->tzd[i] = thermal_zone_device_register(name[i],
+                                       0, initialize_sensor(i),
+                                       &tzd_ops, 0, 0, 0, 0);
+               if (IS_ERR(pinfo->tzd[i]))
+                       goto reg_fail;
+       }
+
+       pinfo->pdev = pdev;
+       platform_set_drvdata(pdev, pinfo);
+       return 0;
+
+reg_fail:
+       ret = PTR_ERR(pinfo->tzd[i]);
+       while (--i >= 0)
+               thermal_zone_device_unregister(pinfo->tzd[i]);
+       configure_adc(0);
+       kfree(pinfo);
+       return ret;
+}
+
+/**
+ * mid_thermal_remove - mfld thermal finalize
+ * @dev: platform device structure
+ *
+ * MLFD thermal remove unregisters all the sensors from the generic
+ * thermal framework. Can sleep.
+ */
+static int mid_thermal_remove(struct platform_device *pdev)
+{
+       int i;
+       struct platform_info *pinfo = platform_get_drvdata(pdev);
+
+       for (i = 0; i < MSIC_THERMAL_SENSORS; i++)
+               thermal_zone_device_unregister(pinfo->tzd[i]);
+
+       platform_set_drvdata(pdev, NULL);
+
+       /* Stop the ADC */
+       return configure_adc(0);
+}
+
+/*********************************************************************
+ *             Driver initialisation and finalization
+ *********************************************************************/
+
+#define DRIVER_NAME "msic_sensor"
+
+static const struct platform_device_id therm_id_table[] = {
+       { DRIVER_NAME, 1 },
+       { }
+};
+
+static struct platform_driver mid_thermal_driver = {
+       .driver = {
+               .name = DRIVER_NAME,
+               .owner = THIS_MODULE,
+       },
+       .probe = mid_thermal_probe,
+       .suspend = mid_thermal_suspend,
+       .resume = mid_thermal_resume,
+       .remove = __devexit_p(mid_thermal_remove),
+       .id_table = therm_id_table,
+};
+
+static int __init mid_thermal_module_init(void)
+{
+       return platform_driver_register(&mid_thermal_driver);
+}
+
+static void __exit mid_thermal_module_exit(void)
+{
+       platform_driver_unregister(&mid_thermal_driver);
+}
+
+module_init(mid_thermal_module_init);
+module_exit(mid_thermal_module_exit);
+
+MODULE_AUTHOR("Durgadoss R <durgadoss.r@intel.com>");
+MODULE_DESCRIPTION("Intel Medfield Platform Thermal Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/platform/x86/intel_pmic_gpio.c b/drivers/platform/x86/intel_pmic_gpio.c
index 61433d492862..d653104b59cb 100644
--- a/drivers/platform/x86/intel_pmic_gpio.c
+++ b/drivers/platform/x86/intel_pmic_gpio.c
@@ -257,9 +257,11 @@ static int __devinit platform_pmic_gpio_probe(struct platform_device *pdev)
 	}
 
 	for (i = 0; i < 8; i++) {
-		set_irq_chip_and_handler_name(i + pg->irq_base, &pmic_irqchip,
-					handle_simple_irq, "demux");
-		set_irq_chip_data(i + pg->irq_base, pg);
+		irq_set_chip_and_handler_name(i + pg->irq_base,
+					      &pmic_irqchip,
+					      handle_simple_irq,
+					      "demux");
+		irq_set_chip_data(i + pg->irq_base, pg);
 	}
 	return 0;
 err:
diff --git a/drivers/platform/x86/intel_rar_register.c b/drivers/platform/x86/intel_rar_register.c
index 2b11a33325e6..bde47e9080cd 100644
--- a/drivers/platform/x86/intel_rar_register.c
+++ b/drivers/platform/x86/intel_rar_register.c
@@ -485,7 +485,7 @@ EXPORT_SYMBOL(rar_lock);
  *
  *	The register_rar function is to used by other device drivers
  *	to ensure that this driver is ready. As we cannot be sure of
- *	the compile/execute order of drivers in ther kernel, it is
+ *	the compile/execute order of drivers in the kernel, it is
  *	best to give this driver a callback function to call when
  *	it is ready to give out addresses. The callback function
  *	would have those steps that continue the initialization of
diff --git a/drivers/platform/x86/intel_scu_ipc.c b/drivers/platform/x86/intel_scu_ipc.c
index a91d510a798b..940accbe28d3 100644
--- a/drivers/platform/x86/intel_scu_ipc.c
+++ b/drivers/platform/x86/intel_scu_ipc.c
@@ -9,7 +9,7 @@
  * as published by the Free Software Foundation; version 2
  * of the License.
  *
- * SCU runing in ARC processor communicates with other entity running in IA
+ * SCU running in ARC processor communicates with other entity running in IA
  * core through IPC mechanism which in turn messaging between IA core ad SCU.
  * SCU has two IPC mechanism IPC-1 and IPC-2. IPC-1 is used between IA32 and
  * SCU where IPC-2 is used between P-Unit and SCU. This driver delas with
diff --git a/drivers/platform/x86/msi-laptop.c b/drivers/platform/x86/msi-laptop.c
index 142d38579314..23fb2afda00b 100644
--- a/drivers/platform/x86/msi-laptop.c
+++ b/drivers/platform/x86/msi-laptop.c
@@ -51,6 +51,8 @@
  * laptop as MSI S270. YMMV.
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
@@ -60,6 +62,8 @@
 #include <linux/platform_device.h>
 #include <linux/rfkill.h>
 #include <linux/i8042.h>
+#include <linux/input.h>
+#include <linux/input/sparse-keymap.h>
 
 #define MSI_DRIVER_VERSION "0.5"
 
@@ -78,6 +82,9 @@
 #define MSI_STANDARD_EC_SCM_LOAD_ADDRESS	0x2d
 #define MSI_STANDARD_EC_SCM_LOAD_MASK		(1 << 0)
 
+#define MSI_STANDARD_EC_TOUCHPAD_ADDRESS	0xe4
+#define MSI_STANDARD_EC_TOUCHPAD_MASK		(1 << 4)
+
 static int msi_laptop_resume(struct platform_device *device);
 
 #define MSI_STANDARD_EC_DEVICES_EXISTS_ADDRESS	0x2f
@@ -90,6 +97,14 @@ static int auto_brightness;
 module_param(auto_brightness, int, 0);
 MODULE_PARM_DESC(auto_brightness, "Enable automatic brightness control (0: disabled; 1: enabled; 2: don't touch)");
 
+static const struct key_entry msi_laptop_keymap[] = {
+	{KE_KEY, KEY_TOUCHPAD_ON, {KEY_TOUCHPAD_ON} },	/* Touch Pad On */
+	{KE_KEY, KEY_TOUCHPAD_OFF, {KEY_TOUCHPAD_OFF} },/* Touch Pad On */
+	{KE_END, 0}
+};
+
+static struct input_dev *msi_laptop_input_dev;
+
 static bool old_ec_model;
 static int wlan_s, bluetooth_s, threeg_s;
 static int threeg_exists;
@@ -432,8 +447,7 @@ static struct platform_device *msipf_device;
 
 static int dmi_check_cb(const struct dmi_system_id *id)
 {
-	printk(KERN_INFO "msi-laptop: Identified laptop model '%s'.\n",
-	       id->ident);
+	pr_info("Identified laptop model '%s'.\n", id->ident);
 	return 1;
 }
 
@@ -605,6 +619,21 @@ static void msi_update_rfkill(struct work_struct *ignored)
 }
 static DECLARE_DELAYED_WORK(msi_rfkill_work, msi_update_rfkill);
 
+static void msi_send_touchpad_key(struct work_struct *ignored)
+{
+	u8 rdata;
+	int result;
+
+	result = ec_read(MSI_STANDARD_EC_TOUCHPAD_ADDRESS, &rdata);
+	if (result < 0)
+		return;
+
+	sparse_keymap_report_event(msi_laptop_input_dev,
+		(rdata & MSI_STANDARD_EC_TOUCHPAD_MASK) ?
+		KEY_TOUCHPAD_ON : KEY_TOUCHPAD_OFF, 1, true);
+}
+static DECLARE_DELAYED_WORK(msi_touchpad_work, msi_send_touchpad_key);
+
 static bool msi_laptop_i8042_filter(unsigned char data, unsigned char str,
 				struct serio *port)
 {
@@ -613,12 +642,17 @@ static bool msi_laptop_i8042_filter(unsigned char data, unsigned char str,
 	if (str & 0x20)
 		return false;
 
-	/* 0x54 wwan, 0x62 bluetooth, 0x76 wlan*/
+	/* 0x54 wwan, 0x62 bluetooth, 0x76 wlan, 0xE4 touchpad toggle*/
 	if (unlikely(data == 0xe0)) {
 		extended = true;
 		return false;
 	} else if (unlikely(extended)) {
+		extended = false;
 		switch (data) {
+		case 0xE4:
+			schedule_delayed_work(&msi_touchpad_work,
+				round_jiffies_relative(0.5 * HZ));
+			break;
 		case 0x54:
 		case 0x62:
 		case 0x76:
@@ -626,7 +660,6 @@ static bool msi_laptop_i8042_filter(unsigned char data, unsigned char str,
 				round_jiffies_relative(0.5 * HZ));
 			break;
 		}
-		extended = false;
 	}
 
 	return false;
@@ -731,6 +764,42 @@ static int msi_laptop_resume(struct platform_device *device)
 	return 0;
 }
 
+static int __init msi_laptop_input_setup(void)
+{
+	int err;
+
+	msi_laptop_input_dev = input_allocate_device();
+	if (!msi_laptop_input_dev)
+		return -ENOMEM;
+
+	msi_laptop_input_dev->name = "MSI Laptop hotkeys";
+	msi_laptop_input_dev->phys = "msi-laptop/input0";
+	msi_laptop_input_dev->id.bustype = BUS_HOST;
+
+	err = sparse_keymap_setup(msi_laptop_input_dev,
+		msi_laptop_keymap, NULL);
+	if (err)
+		goto err_free_dev;
+
+	err = input_register_device(msi_laptop_input_dev);
+	if (err)
+		goto err_free_keymap;
+
+	return 0;
+
+err_free_keymap:
+	sparse_keymap_free(msi_laptop_input_dev);
+err_free_dev:
+	input_free_device(msi_laptop_input_dev);
+	return err;
+}
+
+static void msi_laptop_input_destroy(void)
+{
+	sparse_keymap_free(msi_laptop_input_dev);
+	input_unregister_device(msi_laptop_input_dev);
+}
+
 static int load_scm_model_init(struct platform_device *sdev)
 {
 	u8 data;
@@ -759,16 +828,23 @@ static int load_scm_model_init(struct platform_device *sdev)
 	if (result < 0)
 		goto fail_rfkill;
 
+	/* setup input device */
+	result = msi_laptop_input_setup();
+	if (result)
+		goto fail_input;
+
 	result = i8042_install_filter(msi_laptop_i8042_filter);
 	if (result) {
-		printk(KERN_ERR
-			"msi-laptop: Unable to install key filter\n");
+		pr_err("Unable to install key filter\n");
 		goto fail_filter;
 	}
 
 	return 0;
 
 fail_filter:
+	msi_laptop_input_destroy();
+
+fail_input:
 	rfkill_cleanup();
 
 fail_rfkill:
@@ -799,7 +875,7 @@ static int __init msi_init(void)
 	/* Register backlight stuff */
 
 	if (acpi_video_backlight_support()) {
-		printk(KERN_INFO "MSI: Brightness ignored, must be controlled "
+		pr_info("Brightness ignored, must be controlled "
 		       "by ACPI video driver\n");
 	} else {
 		struct backlight_properties props;
@@ -854,7 +930,7 @@ static int __init msi_init(void)
 	if (auto_brightness != 2)
 		set_auto_brightness(auto_brightness);
 
-	printk(KERN_INFO "msi-laptop: driver "MSI_DRIVER_VERSION" successfully loaded.\n");
+	pr_info("driver "MSI_DRIVER_VERSION" successfully loaded.\n");
 
 	return 0;
 
@@ -886,6 +962,7 @@ static void __exit msi_cleanup(void)
 {
 	if (load_scm_model) {
 		i8042_remove_filter(msi_laptop_i8042_filter);
+		msi_laptop_input_destroy();
 		cancel_delayed_work_sync(&msi_rfkill_work);
 		rfkill_cleanup();
 	}
@@ -901,7 +978,7 @@ static void __exit msi_cleanup(void)
 	if (auto_brightness != 2)
 		set_auto_brightness(1);
 
-	printk(KERN_INFO "msi-laptop: driver unloaded.\n");
+	pr_info("driver unloaded.\n");
 }
 
 module_init(msi_init);
diff --git a/drivers/platform/x86/samsung-laptop.c b/drivers/platform/x86/samsung-laptop.c
new file mode 100644
index 000000000000..de434c6dc2d6
--- /dev/null
+++ b/drivers/platform/x86/samsung-laptop.c
@@ -0,0 +1,832 @@
+/*
+ * Samsung Laptop driver
+ *
+ * Copyright (C) 2009,2011 Greg Kroah-Hartman (gregkh@suse.de)
+ * Copyright (C) 2009,2011 Novell Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ */
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/pci.h>
+#include <linux/backlight.h>
+#include <linux/fb.h>
+#include <linux/dmi.h>
+#include <linux/platform_device.h>
+#include <linux/rfkill.h>
+
+/*
+ * This driver is needed because a number of Samsung laptops do not hook
+ * their control settings through ACPI.  So we have to poke around in the
+ * BIOS to do things like brightness values, and "special" key controls.
+ */
+
+/*
+ * We have 0 - 8 as valid brightness levels.  The specs say that level 0 should
+ * be reserved by the BIOS (which really doesn't make much sense), we tell
+ * userspace that the value is 0 - 7 and then just tell the hardware 1 - 8
+ */
+#define MAX_BRIGHT	0x07
+
+
+#define SABI_IFACE_MAIN			0x00
+#define SABI_IFACE_SUB			0x02
+#define SABI_IFACE_COMPLETE		0x04
+#define SABI_IFACE_DATA			0x05
+
+/* Structure to get data back to the calling function */
+struct sabi_retval {
+	u8 retval[20];
+};
+
+struct sabi_header_offsets {
+	u8 port;
+	u8 re_mem;
+	u8 iface_func;
+	u8 en_mem;
+	u8 data_offset;
+	u8 data_segment;
+};
+
+struct sabi_commands {
+	/*
+	 * Brightness is 0 - 8, as described above.
+	 * Value 0 is for the BIOS to use
+	 */
+	u8 get_brightness;
+	u8 set_brightness;
+
+	/*
+	 * first byte:
+	 * 0x00 - wireless is off
+	 * 0x01 - wireless is on
+	 * second byte:
+	 * 0x02 - 3G is off
+	 * 0x03 - 3G is on
+	 * TODO, verify 3G is correct, that doesn't seem right...
+	 */
+	u8 get_wireless_button;
+	u8 set_wireless_button;
+
+	/* 0 is off, 1 is on */
+	u8 get_backlight;
+	u8 set_backlight;
+
+	/*
+	 * 0x80 or 0x00 - no action
+	 * 0x81 - recovery key pressed
+	 */
+	u8 get_recovery_mode;
+	u8 set_recovery_mode;
+
+	/*
+	 * on seclinux: 0 is low, 1 is high,
+	 * on swsmi: 0 is normal, 1 is silent, 2 is turbo
+	 */
+	u8 get_performance_level;
+	u8 set_performance_level;
+
+	/*
+	 * Tell the BIOS that Linux is running on this machine.
+	 * 81 is on, 80 is off
+	 */
+	u8 set_linux;
+};
+
+struct sabi_performance_level {
+	const char *name;
+	u8 value;
+};
+
+struct sabi_config {
+	const char *test_string;
+	u16 main_function;
+	const struct sabi_header_offsets header_offsets;
+	const struct sabi_commands commands;
+	const struct sabi_performance_level performance_levels[4];
+	u8 min_brightness;
+	u8 max_brightness;
+};
+
+static const struct sabi_config sabi_configs[] = {
+	{
+		.test_string = "SECLINUX",
+
+		.main_function = 0x4c49,
+
+		.header_offsets = {
+			.port = 0x00,
+			.re_mem = 0x02,
+			.iface_func = 0x03,
+			.en_mem = 0x04,
+			.data_offset = 0x05,
+			.data_segment = 0x07,
+		},
+
+		.commands = {
+			.get_brightness = 0x00,
+			.set_brightness = 0x01,
+
+			.get_wireless_button = 0x02,
+			.set_wireless_button = 0x03,
+
+			.get_backlight = 0x04,
+			.set_backlight = 0x05,
+
+			.get_recovery_mode = 0x06,
+			.set_recovery_mode = 0x07,
+
+			.get_performance_level = 0x08,
+			.set_performance_level = 0x09,
+
+			.set_linux = 0x0a,
+		},
+
+		.performance_levels = {
+			{
+				.name = "silent",
+				.value = 0,
+			},
+			{
+				.name = "normal",
+				.value = 1,
+			},
+			{ },
+		},
+		.min_brightness = 1,
+		.max_brightness = 8,
+	},
+	{
+		.test_string = "SwSmi@",
+
+		.main_function = 0x5843,
+
+		.header_offsets = {
+			.port = 0x00,
+			.re_mem = 0x04,
+			.iface_func = 0x02,
+			.en_mem = 0x03,
+			.data_offset = 0x05,
+			.data_segment = 0x07,
+		},
+
+		.commands = {
+			.get_brightness = 0x10,
+			.set_brightness = 0x11,
+
+			.get_wireless_button = 0x12,
+			.set_wireless_button = 0x13,
+
+			.get_backlight = 0x2d,
+			.set_backlight = 0x2e,
+
+			.get_recovery_mode = 0xff,
+			.set_recovery_mode = 0xff,
+
+			.get_performance_level = 0x31,
+			.set_performance_level = 0x32,
+
+			.set_linux = 0xff,
+		},
+
+		.performance_levels = {
+			{
+				.name = "normal",
+				.value = 0,
+			},
+			{
+				.name = "silent",
+				.value = 1,
+			},
+			{
+				.name = "overclock",
+				.value = 2,
+			},
+			{ },
+		},
+		.min_brightness = 0,
+		.max_brightness = 8,
+	},
+	{ },
+};
+
+static const struct sabi_config *sabi_config;
+
+static void __iomem *sabi;
+static void __iomem *sabi_iface;
+static void __iomem *f0000_segment;
+static struct backlight_device *backlight_device;
+static struct mutex sabi_mutex;
+static struct platform_device *sdev;
+static struct rfkill *rfk;
+
+static int force;
+module_param(force, bool, 0);
+MODULE_PARM_DESC(force,
+		"Disable the DMI check and forces the driver to be loaded");
+
+static int debug;
+module_param(debug, bool, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(debug, "Debug enabled or not");
+
+static int sabi_get_command(u8 command, struct sabi_retval *sretval)
+{
+	int retval = 0;
+	u16 port = readw(sabi + sabi_config->header_offsets.port);
+	u8 complete, iface_data;
+
+	mutex_lock(&sabi_mutex);
+
+	/* enable memory to be able to write to it */
+	outb(readb(sabi + sabi_config->header_offsets.en_mem), port);
+
+	/* write out the command */
+	writew(sabi_config->main_function, sabi_iface + SABI_IFACE_MAIN);
+	writew(command, sabi_iface + SABI_IFACE_SUB);
+	writeb(0, sabi_iface + SABI_IFACE_COMPLETE);
+	outb(readb(sabi + sabi_config->header_offsets.iface_func), port);
+
+	/* write protect memory to make it safe */
+	outb(readb(sabi + sabi_config->header_offsets.re_mem), port);
+
+	/* see if the command actually succeeded */
+	complete = readb(sabi_iface + SABI_IFACE_COMPLETE);
+	iface_data = readb(sabi_iface + SABI_IFACE_DATA);
+	if (complete != 0xaa || iface_data == 0xff) {
+		pr_warn("SABI get command 0x%02x failed with completion flag 0x%02x and data 0x%02x\n",
+		        command, complete, iface_data);
+		retval = -EINVAL;
+		goto exit;
+	}
+	/*
+	 * Save off the data into a structure so the caller use it.
+	 * Right now we only want the first 4 bytes,
+	 * There are commands that need more, but not for the ones we
+	 * currently care about.
+	 */
+	sretval->retval[0] = readb(sabi_iface + SABI_IFACE_DATA);
+	sretval->retval[1] = readb(sabi_iface + SABI_IFACE_DATA + 1);
+	sretval->retval[2] = readb(sabi_iface + SABI_IFACE_DATA + 2);
+	sretval->retval[3] = readb(sabi_iface + SABI_IFACE_DATA + 3);
+
+exit:
+	mutex_unlock(&sabi_mutex);
+	return retval;
+
+}
+
+static int sabi_set_command(u8 command, u8 data)
+{
+	int retval = 0;
+	u16 port = readw(sabi + sabi_config->header_offsets.port);
+	u8 complete, iface_data;
+
+	mutex_lock(&sabi_mutex);
+
+	/* enable memory to be able to write to it */
+	outb(readb(sabi + sabi_config->header_offsets.en_mem), port);
+
+	/* write out the command */
+	writew(sabi_config->main_function, sabi_iface + SABI_IFACE_MAIN);
+	writew(command, sabi_iface + SABI_IFACE_SUB);
+	writeb(0, sabi_iface + SABI_IFACE_COMPLETE);
+	writeb(data, sabi_iface + SABI_IFACE_DATA);
+	outb(readb(sabi + sabi_config->header_offsets.iface_func), port);
+
+	/* write protect memory to make it safe */
+	outb(readb(sabi + sabi_config->header_offsets.re_mem), port);
+
+	/* see if the command actually succeeded */
+	complete = readb(sabi_iface + SABI_IFACE_COMPLETE);
+	iface_data = readb(sabi_iface + SABI_IFACE_DATA);
+	if (complete != 0xaa || iface_data == 0xff) {
+		pr_warn("SABI set command 0x%02x failed with completion flag 0x%02x and data 0x%02x\n",
+		       command, complete, iface_data);
+		retval = -EINVAL;
+	}
+
+	mutex_unlock(&sabi_mutex);
+	return retval;
+}
+
+static void test_backlight(void)
+{
+	struct sabi_retval sretval;
+
+	sabi_get_command(sabi_config->commands.get_backlight, &sretval);
+	printk(KERN_DEBUG "backlight = 0x%02x\n", sretval.retval[0]);
+
+	sabi_set_command(sabi_config->commands.set_backlight, 0);
+	printk(KERN_DEBUG "backlight should be off\n");
+
+	sabi_get_command(sabi_config->commands.get_backlight, &sretval);
+	printk(KERN_DEBUG "backlight = 0x%02x\n", sretval.retval[0]);
+
+	msleep(1000);
+
+	sabi_set_command(sabi_config->commands.set_backlight, 1);
+	printk(KERN_DEBUG "backlight should be on\n");
+
+	sabi_get_command(sabi_config->commands.get_backlight, &sretval);
+	printk(KERN_DEBUG "backlight = 0x%02x\n", sretval.retval[0]);
+}
+
+static void test_wireless(void)
+{
+	struct sabi_retval sretval;
+
+	sabi_get_command(sabi_config->commands.get_wireless_button, &sretval);
+	printk(KERN_DEBUG "wireless led = 0x%02x\n", sretval.retval[0]);
+
+	sabi_set_command(sabi_config->commands.set_wireless_button, 0);
+	printk(KERN_DEBUG "wireless led should be off\n");
+
+	sabi_get_command(sabi_config->commands.get_wireless_button, &sretval);
+	printk(KERN_DEBUG "wireless led = 0x%02x\n", sretval.retval[0]);
+
+	msleep(1000);
+
+	sabi_set_command(sabi_config->commands.set_wireless_button, 1);
+	printk(KERN_DEBUG "wireless led should be on\n");
+
+	sabi_get_command(sabi_config->commands.get_wireless_button, &sretval);
+	printk(KERN_DEBUG "wireless led = 0x%02x\n", sretval.retval[0]);
+}
+
+static u8 read_brightness(void)
+{
+	struct sabi_retval sretval;
+	int user_brightness = 0;
+	int retval;
+
+	retval = sabi_get_command(sabi_config->commands.get_brightness,
+				  &sretval);
+	if (!retval) {
+		user_brightness = sretval.retval[0];
+		if (user_brightness != 0)
+			user_brightness -= sabi_config->min_brightness;
+	}
+	return user_brightness;
+}
+
+static void set_brightness(u8 user_brightness)
+{
+	u8 user_level = user_brightness - sabi_config->min_brightness;
+
+	sabi_set_command(sabi_config->commands.set_brightness, user_level);
+}
+
+static int get_brightness(struct backlight_device *bd)
+{
+	return (int)read_brightness();
+}
+
+static int update_status(struct backlight_device *bd)
+{
+	set_brightness(bd->props.brightness);
+
+	if (bd->props.power == FB_BLANK_UNBLANK)
+		sabi_set_command(sabi_config->commands.set_backlight, 1);
+	else
+		sabi_set_command(sabi_config->commands.set_backlight, 0);
+	return 0;
+}
+
+static const struct backlight_ops backlight_ops = {
+	.get_brightness	= get_brightness,
+	.update_status	= update_status,
+};
+
+static int rfkill_set(void *data, bool blocked)
+{
+	/* Do something with blocked...*/
+	/*
+	 * blocked == false is on
+	 * blocked == true is off
+	 */
+	if (blocked)
+		sabi_set_command(sabi_config->commands.set_wireless_button, 0);
+	else
+		sabi_set_command(sabi_config->commands.set_wireless_button, 1);
+
+	return 0;
+}
+
+static struct rfkill_ops rfkill_ops = {
+	.set_block = rfkill_set,
+};
+
+static int init_wireless(struct platform_device *sdev)
+{
+	int retval;
+
+	rfk = rfkill_alloc("samsung-wifi", &sdev->dev, RFKILL_TYPE_WLAN,
+			   &rfkill_ops, NULL);
+	if (!rfk)
+		return -ENOMEM;
+
+	retval = rfkill_register(rfk);
+	if (retval) {
+		rfkill_destroy(rfk);
+		return -ENODEV;
+	}
+
+	return 0;
+}
+
+static void destroy_wireless(void)
+{
+	rfkill_unregister(rfk);
+	rfkill_destroy(rfk);
+}
+
+static ssize_t get_performance_level(struct device *dev,
+				     struct device_attribute *attr, char *buf)
+{
+	struct sabi_retval sretval;
+	int retval;
+	int i;
+
+	/* Read the state */
+	retval = sabi_get_command(sabi_config->commands.get_performance_level,
+				  &sretval);
+	if (retval)
+		return retval;
+
+	/* The logic is backwards, yeah, lots of fun... */
+	for (i = 0; sabi_config->performance_levels[i].name; ++i) {
+		if (sretval.retval[0] == sabi_config->performance_levels[i].value)
+			return sprintf(buf, "%s\n", sabi_config->performance_levels[i].name);
+	}
+	return sprintf(buf, "%s\n", "unknown");
+}
+
+static ssize_t set_performance_level(struct device *dev,
+				struct device_attribute *attr, const char *buf,
+				size_t count)
+{
+	if (count >= 1) {
+		int i;
+		for (i = 0; sabi_config->performance_levels[i].name; ++i) {
+			const struct sabi_performance_level *level =
+				&sabi_config->performance_levels[i];
+			if (!strncasecmp(level->name, buf, strlen(level->name))) {
+				sabi_set_command(sabi_config->commands.set_performance_level,
+						 level->value);
+				break;
+			}
+		}
+		if (!sabi_config->performance_levels[i].name)
+			return -EINVAL;
+	}
+	return count;
+}
+static DEVICE_ATTR(performance_level, S_IWUSR | S_IRUGO,
+		   get_performance_level, set_performance_level);
+
+
+static int __init dmi_check_cb(const struct dmi_system_id *id)
+{
+	pr_info("found laptop model '%s'\n",
+		id->ident);
+	return 1;
+}
+
+static struct dmi_system_id __initdata samsung_dmi_table[] = {
+	{
+		.ident = "N128",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR,
+					"SAMSUNG ELECTRONICS CO., LTD."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "N128"),
+			DMI_MATCH(DMI_BOARD_NAME, "N128"),
+		},
+		.callback = dmi_check_cb,
+	},
+	{
+		.ident = "N130",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR,
+					"SAMSUNG ELECTRONICS CO., LTD."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "N130"),
+			DMI_MATCH(DMI_BOARD_NAME, "N130"),
+		},
+		.callback = dmi_check_cb,
+	},
+	{
+		.ident = "X125",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR,
+					"SAMSUNG ELECTRONICS CO., LTD."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "X125"),
+			DMI_MATCH(DMI_BOARD_NAME, "X125"),
+		},
+		.callback = dmi_check_cb,
+	},
+	{
+		.ident = "X120/X170",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR,
+					"SAMSUNG ELECTRONICS CO., LTD."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "X120/X170"),
+			DMI_MATCH(DMI_BOARD_NAME, "X120/X170"),
+		},
+		.callback = dmi_check_cb,
+	},
+	{
+		.ident = "NC10",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR,
+					"SAMSUNG ELECTRONICS CO., LTD."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "NC10"),
+			DMI_MATCH(DMI_BOARD_NAME, "NC10"),
+		},
+		.callback = dmi_check_cb,
+	},
+		{
+		.ident = "NP-Q45",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR,
+					"SAMSUNG ELECTRONICS CO., LTD."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "SQ45S70S"),
+			DMI_MATCH(DMI_BOARD_NAME, "SQ45S70S"),
+		},
+		.callback = dmi_check_cb,
+		},
+	{
+		.ident = "X360",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR,
+					"SAMSUNG ELECTRONICS CO., LTD."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "X360"),
+			DMI_MATCH(DMI_BOARD_NAME, "X360"),
+		},
+		.callback = dmi_check_cb,
+	},
+	{
+		.ident = "R518",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR,
+					"SAMSUNG ELECTRONICS CO., LTD."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "R518"),
+			DMI_MATCH(DMI_BOARD_NAME, "R518"),
+		},
+		.callback = dmi_check_cb,
+	},
+	{
+		.ident = "R519/R719",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR,
+					"SAMSUNG ELECTRONICS CO., LTD."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "R519/R719"),
+			DMI_MATCH(DMI_BOARD_NAME, "R519/R719"),
+		},
+		.callback = dmi_check_cb,
+	},
+	{
+		.ident = "N150/N210/N220",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR,
+					"SAMSUNG ELECTRONICS CO., LTD."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "N150/N210/N220"),
+			DMI_MATCH(DMI_BOARD_NAME, "N150/N210/N220"),
+		},
+		.callback = dmi_check_cb,
+	},
+	{
+		.ident = "N150P/N210P/N220P",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR,
+					"SAMSUNG ELECTRONICS CO., LTD."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "N150P/N210P/N220P"),
+			DMI_MATCH(DMI_BOARD_NAME, "N150P/N210P/N220P"),
+		},
+		.callback = dmi_check_cb,
+	},
+	{
+		.ident = "R530/R730",
+		.matches = {
+		      DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
+		      DMI_MATCH(DMI_PRODUCT_NAME, "R530/R730"),
+		      DMI_MATCH(DMI_BOARD_NAME, "R530/R730"),
+		},
+		.callback = dmi_check_cb,
+	},
+	{
+		.ident = "NF110/NF210/NF310",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "NF110/NF210/NF310"),
+			DMI_MATCH(DMI_BOARD_NAME, "NF110/NF210/NF310"),
+		},
+		.callback = dmi_check_cb,
+	},
+	{
+		.ident = "N145P/N250P/N260P",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "N145P/N250P/N260P"),
+			DMI_MATCH(DMI_BOARD_NAME, "N145P/N250P/N260P"),
+		},
+		.callback = dmi_check_cb,
+	},
+	{
+		.ident = "R70/R71",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR,
+					"SAMSUNG ELECTRONICS CO., LTD."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "R70/R71"),
+			DMI_MATCH(DMI_BOARD_NAME, "R70/R71"),
+		},
+		.callback = dmi_check_cb,
+	},
+	{
+		.ident = "P460",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "P460"),
+			DMI_MATCH(DMI_BOARD_NAME, "P460"),
+		},
+		.callback = dmi_check_cb,
+	},
+	{ },
+};
+MODULE_DEVICE_TABLE(dmi, samsung_dmi_table);
+
+static int find_signature(void __iomem *memcheck, const char *testStr)
+{
+	int i = 0;
+	int loca;
+
+	for (loca = 0; loca < 0xffff; loca++) {
+		char temp = readb(memcheck + loca);
+
+		if (temp == testStr[i]) {
+			if (i == strlen(testStr)-1)
+				break;
+			++i;
+		} else {
+			i = 0;
+		}
+	}
+	return loca;
+}
+
+static int __init samsung_init(void)
+{
+	struct backlight_properties props;
+	struct sabi_retval sretval;
+	unsigned int ifaceP;
+	int i;
+	int loca;
+	int retval;
+
+	mutex_init(&sabi_mutex);
+
+	if (!force && !dmi_check_system(samsung_dmi_table))
+		return -ENODEV;
+
+	f0000_segment = ioremap_nocache(0xf0000, 0xffff);
+	if (!f0000_segment) {
+		pr_err("Can't map the segment at 0xf0000\n");
+		return -EINVAL;
+	}
+
+	/* Try to find one of the signatures in memory to find the header */
+	for (i = 0; sabi_configs[i].test_string != 0; ++i) {
+		sabi_config = &sabi_configs[i];
+		loca = find_signature(f0000_segment, sabi_config->test_string);
+		if (loca != 0xffff)
+			break;
+	}
+
+	if (loca == 0xffff) {
+		pr_err("This computer does not support SABI\n");
+		goto error_no_signature;
+	}
+
+	/* point to the SMI port Number */
+	loca += 1;
+	sabi = (f0000_segment + loca);
+
+	if (debug) {
+		printk(KERN_DEBUG "This computer supports SABI==%x\n",
+			loca + 0xf0000 - 6);
+		printk(KERN_DEBUG "SABI header:\n");
+		printk(KERN_DEBUG " SMI Port Number = 0x%04x\n",
+			readw(sabi + sabi_config->header_offsets.port));
+		printk(KERN_DEBUG " SMI Interface Function = 0x%02x\n",
+			readb(sabi + sabi_config->header_offsets.iface_func));
+		printk(KERN_DEBUG " SMI enable memory buffer = 0x%02x\n",
+			readb(sabi + sabi_config->header_offsets.en_mem));
+		printk(KERN_DEBUG " SMI restore memory buffer = 0x%02x\n",
+			readb(sabi + sabi_config->header_offsets.re_mem));
+		printk(KERN_DEBUG " SABI data offset = 0x%04x\n",
+			readw(sabi + sabi_config->header_offsets.data_offset));
+		printk(KERN_DEBUG " SABI data segment = 0x%04x\n",
+			readw(sabi + sabi_config->header_offsets.data_segment));
+	}
+
+	/* Get a pointer to the SABI Interface */
+	ifaceP = (readw(sabi + sabi_config->header_offsets.data_segment) & 0x0ffff) << 4;
+	ifaceP += readw(sabi + sabi_config->header_offsets.data_offset) & 0x0ffff;
+	sabi_iface = ioremap_nocache(ifaceP, 16);
+	if (!sabi_iface) {
+		pr_err("Can't remap %x\n", ifaceP);
+		goto exit;
+	}
+	if (debug) {
+		printk(KERN_DEBUG "ifaceP = 0x%08x\n", ifaceP);
+		printk(KERN_DEBUG "sabi_iface = %p\n", sabi_iface);
+
+		test_backlight();
+		test_wireless();
+
+		retval = sabi_get_command(sabi_config->commands.get_brightness,
+					  &sretval);
+		printk(KERN_DEBUG "brightness = 0x%02x\n", sretval.retval[0]);
+	}
+
+	/* Turn on "Linux" mode in the BIOS */
+	if (sabi_config->commands.set_linux != 0xff) {
+		retval = sabi_set_command(sabi_config->commands.set_linux,
+					  0x81);
+		if (retval) {
+			pr_warn("Linux mode was not set!\n");
+			goto error_no_platform;
+		}
+	}
+
+	/* knock up a platform device to hang stuff off of */
+	sdev = platform_device_register_simple("samsung", -1, NULL, 0);
+	if (IS_ERR(sdev))
+		goto error_no_platform;
+
+	/* create a backlight device to talk to this one */
+	memset(&props, 0, sizeof(struct backlight_properties));
+	props.max_brightness = sabi_config->max_brightness;
+	backlight_device = backlight_device_register("samsung", &sdev->dev,
+						     NULL, &backlight_ops,
+						     &props);
+	if (IS_ERR(backlight_device))
+		goto error_no_backlight;
+
+	backlight_device->props.brightness = read_brightness();
+	backlight_device->props.power = FB_BLANK_UNBLANK;
+	backlight_update_status(backlight_device);
+
+	retval = init_wireless(sdev);
+	if (retval)
+		goto error_no_rfk;
+
+	retval = device_create_file(&sdev->dev, &dev_attr_performance_level);
+	if (retval)
+		goto error_file_create;
+
+exit:
+	return 0;
+
+error_file_create:
+	destroy_wireless();
+
+error_no_rfk:
+	backlight_device_unregister(backlight_device);
+
+error_no_backlight:
+	platform_device_unregister(sdev);
+
+error_no_platform:
+	iounmap(sabi_iface);
+
+error_no_signature:
+	iounmap(f0000_segment);
+	return -EINVAL;
+}
+
+static void __exit samsung_exit(void)
+{
+	/* Turn off "Linux" mode in the BIOS */
+	if (sabi_config->commands.set_linux != 0xff)
+		sabi_set_command(sabi_config->commands.set_linux, 0x80);
+
+	device_remove_file(&sdev->dev, &dev_attr_performance_level);
+	backlight_device_unregister(backlight_device);
+	destroy_wireless();
+	iounmap(sabi_iface);
+	iounmap(f0000_segment);
+	platform_device_unregister(sdev);
+}
+
+module_init(samsung_init);
+module_exit(samsung_exit);
+
+MODULE_AUTHOR("Greg Kroah-Hartman <gregkh@suse.de>");
+MODULE_DESCRIPTION("Samsung Backlight driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c
index 13d8d63bcca9..e642f5f29504 100644
--- a/drivers/platform/x86/sony-laptop.c
+++ b/drivers/platform/x86/sony-laptop.c
@@ -71,8 +71,9 @@
 #endif
 
 #define DRV_PFX			"sony-laptop: "
-#define dprintk(msg...)		do {			\
-	if (debug) printk(KERN_WARNING DRV_PFX  msg);	\
+#define dprintk(msg...)		do {	\
+	if (debug)			\
+		pr_warn(DRV_PFX msg);	\
 } while (0)
 
 #define SONY_LAPTOP_DRIVER_VERSION	"0.6"
@@ -124,6 +125,19 @@ MODULE_PARM_DESC(minor,
 		 "default is -1 (automatic)");
 #endif
 
+static int kbd_backlight;	/* = 1 */
+module_param(kbd_backlight, int, 0444);
+MODULE_PARM_DESC(kbd_backlight,
+		 "set this to 0 to disable keyboard backlight, "
+		 "1 to enable it (default: 0)");
+
+static int kbd_backlight_timeout;	/* = 0 */
+module_param(kbd_backlight_timeout, int, 0444);
+MODULE_PARM_DESC(kbd_backlight_timeout,
+		 "set this to 0 to set the default 10 seconds timeout, "
+		 "1 for 30 seconds, 2 for 60 seconds and 3 to disable timeout "
+		 "(default: 0)");
+
 enum sony_nc_rfkill {
 	SONY_WIFI,
 	SONY_BLUETOOTH,
@@ -402,7 +416,7 @@ static int sony_laptop_setup_input(struct acpi_device *acpi_device)
 	error = kfifo_alloc(&sony_laptop_input.fifo,
 			    SONY_LAPTOP_BUF_SIZE, GFP_KERNEL);
 	if (error) {
-		printk(KERN_ERR DRV_PFX "kfifo_alloc failed\n");
+		pr_err(DRV_PFX "kfifo_alloc failed\n");
 		goto err_dec_users;
 	}
 
@@ -591,7 +605,7 @@ struct sony_nc_value {
 	int value;		/* current setting */
 	int valid;		/* Has ever been set */
 	int debug;		/* active only in debug mode ? */
-	struct device_attribute devattr;	/* sysfs atribute */
+	struct device_attribute devattr;	/* sysfs attribute */
 };
 
 #define SNC_HANDLE_NAMES(_name, _values...) \
@@ -686,7 +700,7 @@ static int acpi_callgetfunc(acpi_handle handle, char *name, int *result)
 		return 0;
 	}
 
-	printk(KERN_WARNING DRV_PFX "acpi_callreadfunc failed\n");
+	pr_warn(DRV_PFX "acpi_callreadfunc failed\n");
 
 	return -1;
 }
@@ -712,7 +726,7 @@ static int acpi_callsetfunc(acpi_handle handle, char *name, int value,
 	if (status == AE_OK) {
 		if (result != NULL) {
 			if (out_obj.type != ACPI_TYPE_INTEGER) {
-				printk(KERN_WARNING DRV_PFX "acpi_evaluate_object bad "
+				pr_warn(DRV_PFX "acpi_evaluate_object bad "
 				       "return type\n");
 				return -1;
 			}
@@ -721,34 +735,103 @@ static int acpi_callsetfunc(acpi_handle handle, char *name, int value,
 		return 0;
 	}
 
-	printk(KERN_WARNING DRV_PFX "acpi_evaluate_object failed\n");
+	pr_warn(DRV_PFX "acpi_evaluate_object failed\n");
 
 	return -1;
 }
 
-static int sony_find_snc_handle(int handle)
+struct sony_nc_handles {
+	u16 cap[0x10];
+	struct device_attribute devattr;
+};
+
+static struct sony_nc_handles *handles;
+
+static ssize_t sony_nc_handles_show(struct device *dev,
+		struct device_attribute *attr, char *buffer)
+{
+	ssize_t len = 0;
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
+		len += snprintf(buffer + len, PAGE_SIZE - len, "0x%.4x ",
+				handles->cap[i]);
+	}
+	len += snprintf(buffer + len, PAGE_SIZE - len, "\n");
+
+	return len;
+}
+
+static int sony_nc_handles_setup(struct platform_device *pd)
 {
 	int i;
 	int result;
 
-	for (i = 0x20; i < 0x30; i++) {
-		acpi_callsetfunc(sony_nc_acpi_handle, "SN00", i, &result);
-		if (result == handle)
-			return i-0x20;
+	handles = kzalloc(sizeof(*handles), GFP_KERNEL);
+	if (!handles)
+		return -ENOMEM;
+
+	sysfs_attr_init(&handles->devattr.attr);
+	handles->devattr.attr.name = "handles";
+	handles->devattr.attr.mode = S_IRUGO;
+	handles->devattr.show = sony_nc_handles_show;
+
+	for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
+		if (!acpi_callsetfunc(sony_nc_acpi_handle,
+					"SN00", i + 0x20, &result)) {
+			dprintk("caching handle 0x%.4x (offset: 0x%.2x)\n",
+					result, i);
+			handles->cap[i] = result;
+		}
+	}
+
+	/* allow reading capabilities via sysfs */
+	if (device_create_file(&pd->dev, &handles->devattr)) {
+		kfree(handles);
+		handles = NULL;
+		return -1;
+	}
+
+	return 0;
+}
+
+static int sony_nc_handles_cleanup(struct platform_device *pd)
+{
+	if (handles) {
+		device_remove_file(&pd->dev, &handles->devattr);
+		kfree(handles);
+		handles = NULL;
 	}
+	return 0;
+}
 
+static int sony_find_snc_handle(int handle)
+{
+	int i;
+	for (i = 0; i < 0x10; i++) {
+		if (handles->cap[i] == handle) {
+			dprintk("found handle 0x%.4x (offset: 0x%.2x)\n",
+					handle, i);
+			return i;
+		}
+	}
+	dprintk("handle 0x%.4x not found\n", handle);
 	return -1;
 }
 
 static int sony_call_snc_handle(int handle, int argument, int *result)
 {
+	int ret = 0;
 	int offset = sony_find_snc_handle(handle);
 
 	if (offset < 0)
 		return -1;
 
-	return acpi_callsetfunc(sony_nc_acpi_handle, "SN07", offset | argument,
-				result);
+	ret = acpi_callsetfunc(sony_nc_acpi_handle, "SN07", offset | argument,
+			result);
+	dprintk("called SN07 with 0x%.4x (result: 0x%.4x)\n", offset | argument,
+			*result);
+	return ret;
 }
 
 /*
@@ -857,11 +940,39 @@ static int sony_backlight_get_brightness(struct backlight_device *bd)
 	return value - 1;
 }
 
-static struct backlight_device *sony_backlight_device;
+static int sony_nc_get_brightness_ng(struct backlight_device *bd)
+{
+	int result;
+	int *handle = (int *)bl_get_data(bd);
+
+	sony_call_snc_handle(*handle, 0x0200, &result);
+
+	return result & 0xff;
+}
+
+static int sony_nc_update_status_ng(struct backlight_device *bd)
+{
+	int value, result;
+	int *handle = (int *)bl_get_data(bd);
+
+	value = bd->props.brightness;
+	sony_call_snc_handle(*handle, 0x0100 | (value << 16), &result);
+
+	return sony_nc_get_brightness_ng(bd);
+}
+
 static const struct backlight_ops sony_backlight_ops = {
+	.options = BL_CORE_SUSPENDRESUME,
 	.update_status = sony_backlight_update_status,
 	.get_brightness = sony_backlight_get_brightness,
 };
+static const struct backlight_ops sony_backlight_ng_ops = {
+	.options = BL_CORE_SUSPENDRESUME,
+	.update_status = sony_nc_update_status_ng,
+	.get_brightness = sony_nc_get_brightness_ng,
+};
+static int backlight_ng_handle;
+static struct backlight_device *sony_backlight_device;
 
 /*
  * New SNC-only Vaios event mapping to driver known keys
@@ -972,7 +1083,7 @@ static void sony_nc_notify(struct acpi_device *device, u32 event)
 				}
 
 				if (!key_event->data)
-					printk(KERN_INFO DRV_PFX
+					pr_info(DRV_PFX
 							"Unknown event: 0x%x 0x%x\n",
 							key_handle,
 							ev);
@@ -996,7 +1107,7 @@ static acpi_status sony_walk_callback(acpi_handle handle, u32 level,
 	struct acpi_device_info *info;
 
 	if (ACPI_SUCCESS(acpi_get_object_info(handle, &info))) {
-		printk(KERN_WARNING DRV_PFX "method: name: %4.4s, args %X\n",
+		pr_warn(DRV_PFX "method: name: %4.4s, args %X\n",
 			(char *)&info->name, info->param_count);
 
 		kfree(info);
@@ -1037,7 +1148,7 @@ static int sony_nc_resume(struct acpi_device *device)
 		ret = acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset,
 				       item->value, NULL);
 		if (ret < 0) {
-			printk("%s: %d\n", __func__, ret);
+			pr_err(DRV_PFX "%s: %d\n", __func__, ret);
 			break;
 		}
 	}
@@ -1054,11 +1165,6 @@ static int sony_nc_resume(struct acpi_device *device)
 		sony_nc_function_setup(device);
 	}
 
-	/* set the last requested brightness level */
-	if (sony_backlight_device &&
-			sony_backlight_update_status(sony_backlight_device) < 0)
-		printk(KERN_WARNING DRV_PFX "unable to restore brightness level\n");
-
 	/* re-read rfkill state */
 	sony_nc_rfkill_update();
 
@@ -1206,12 +1312,12 @@ static void sony_nc_rfkill_setup(struct acpi_device *device)
 
 	device_enum = (union acpi_object *) buffer.pointer;
 	if (!device_enum) {
-		pr_err("Invalid SN06 return object\n");
+		pr_err(DRV_PFX "No SN06 return object.");
 		goto out_no_enum;
 	}
 	if (device_enum->type != ACPI_TYPE_BUFFER) {
-		pr_err("Invalid SN06 return object type 0x%.2x\n",
-		       device_enum->type);
+		pr_err(DRV_PFX "Invalid SN06 return object 0x%.2x\n",
+				device_enum->type);
 		goto out_no_enum;
 	}
 
@@ -1245,6 +1351,209 @@ out_no_enum:
 	return;
 }
 
+/* Keyboard backlight feature */
+#define KBDBL_HANDLER	0x137
+#define KBDBL_PRESENT	0xB00
+#define	SET_MODE	0xC00
+#define SET_TIMEOUT	0xE00
+
+struct kbd_backlight {
+	int mode;
+	int timeout;
+	struct device_attribute mode_attr;
+	struct device_attribute timeout_attr;
+};
+
+static struct kbd_backlight *kbdbl_handle;
+
+static ssize_t __sony_nc_kbd_backlight_mode_set(u8 value)
+{
+	int result;
+
+	if (value > 1)
+		return -EINVAL;
+
+	if (sony_call_snc_handle(KBDBL_HANDLER,
+				(value << 0x10) | SET_MODE, &result))
+		return -EIO;
+
+	kbdbl_handle->mode = value;
+
+	return 0;
+}
+
+static ssize_t sony_nc_kbd_backlight_mode_store(struct device *dev,
+		struct device_attribute *attr,
+		const char *buffer, size_t count)
+{
+	int ret = 0;
+	unsigned long value;
+
+	if (count > 31)
+		return -EINVAL;
+
+	if (strict_strtoul(buffer, 10, &value))
+		return -EINVAL;
+
+	ret = __sony_nc_kbd_backlight_mode_set(value);
+	if (ret < 0)
+		return ret;
+
+	return count;
+}
+
+static ssize_t sony_nc_kbd_backlight_mode_show(struct device *dev,
+		struct device_attribute *attr, char *buffer)
+{
+	ssize_t count = 0;
+	count = snprintf(buffer, PAGE_SIZE, "%d\n", kbdbl_handle->mode);
+	return count;
+}
+
+static int __sony_nc_kbd_backlight_timeout_set(u8 value)
+{
+	int result;
+
+	if (value > 3)
+		return -EINVAL;
+
+	if (sony_call_snc_handle(KBDBL_HANDLER,
+				(value << 0x10) | SET_TIMEOUT, &result))
+		return -EIO;
+
+	kbdbl_handle->timeout = value;
+
+	return 0;
+}
+
+static ssize_t sony_nc_kbd_backlight_timeout_store(struct device *dev,
+		struct device_attribute *attr,
+		const char *buffer, size_t count)
+{
+	int ret = 0;
+	unsigned long value;
+
+	if (count > 31)
+		return -EINVAL;
+
+	if (strict_strtoul(buffer, 10, &value))
+		return -EINVAL;
+
+	ret = __sony_nc_kbd_backlight_timeout_set(value);
+	if (ret < 0)
+		return ret;
+
+	return count;
+}
+
+static ssize_t sony_nc_kbd_backlight_timeout_show(struct device *dev,
+		struct device_attribute *attr, char *buffer)
+{
+	ssize_t count = 0;
+	count = snprintf(buffer, PAGE_SIZE, "%d\n", kbdbl_handle->timeout);
+	return count;
+}
+
+static int sony_nc_kbd_backlight_setup(struct platform_device *pd)
+{
+	int result;
+
+	if (sony_call_snc_handle(0x137, KBDBL_PRESENT, &result))
+		return 0;
+	if (!(result & 0x02))
+		return 0;
+
+	kbdbl_handle = kzalloc(sizeof(*kbdbl_handle), GFP_KERNEL);
+	if (!kbdbl_handle)
+		return -ENOMEM;
+
+	sysfs_attr_init(&kbdbl_handle->mode_attr.attr);
+	kbdbl_handle->mode_attr.attr.name = "kbd_backlight";
+	kbdbl_handle->mode_attr.attr.mode = S_IRUGO | S_IWUSR;
+	kbdbl_handle->mode_attr.show = sony_nc_kbd_backlight_mode_show;
+	kbdbl_handle->mode_attr.store = sony_nc_kbd_backlight_mode_store;
+
+	sysfs_attr_init(&kbdbl_handle->timeout_attr.attr);
+	kbdbl_handle->timeout_attr.attr.name = "kbd_backlight_timeout";
+	kbdbl_handle->timeout_attr.attr.mode = S_IRUGO | S_IWUSR;
+	kbdbl_handle->timeout_attr.show = sony_nc_kbd_backlight_timeout_show;
+	kbdbl_handle->timeout_attr.store = sony_nc_kbd_backlight_timeout_store;
+
+	if (device_create_file(&pd->dev, &kbdbl_handle->mode_attr))
+		goto outkzalloc;
+
+	if (device_create_file(&pd->dev, &kbdbl_handle->timeout_attr))
+		goto outmode;
+
+	__sony_nc_kbd_backlight_mode_set(kbd_backlight);
+	__sony_nc_kbd_backlight_timeout_set(kbd_backlight_timeout);
+
+	return 0;
+
+outmode:
+	device_remove_file(&pd->dev, &kbdbl_handle->mode_attr);
+outkzalloc:
+	kfree(kbdbl_handle);
+	kbdbl_handle = NULL;
+	return -1;
+}
+
+static int sony_nc_kbd_backlight_cleanup(struct platform_device *pd)
+{
+	if (kbdbl_handle) {
+		device_remove_file(&pd->dev, &kbdbl_handle->mode_attr);
+		device_remove_file(&pd->dev, &kbdbl_handle->timeout_attr);
+		kfree(kbdbl_handle);
+	}
+	return 0;
+}
+
+static void sony_nc_backlight_setup(void)
+{
+	acpi_handle unused;
+	int max_brightness = 0;
+	const struct backlight_ops *ops = NULL;
+	struct backlight_properties props;
+
+	if (sony_find_snc_handle(0x12f) != -1) {
+		backlight_ng_handle = 0x12f;
+		ops = &sony_backlight_ng_ops;
+		max_brightness = 0xff;
+
+	} else if (sony_find_snc_handle(0x137) != -1) {
+		backlight_ng_handle = 0x137;
+		ops = &sony_backlight_ng_ops;
+		max_brightness = 0xff;
+
+	} else if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT",
+						&unused))) {
+		ops = &sony_backlight_ops;
+		max_brightness = SONY_MAX_BRIGHTNESS - 1;
+
+	} else
+		return;
+
+	memset(&props, 0, sizeof(struct backlight_properties));
+	props.type = BACKLIGHT_PLATFORM;
+	props.max_brightness = max_brightness;
+	sony_backlight_device = backlight_device_register("sony", NULL,
+							  &backlight_ng_handle,
+							  ops, &props);
+
+	if (IS_ERR(sony_backlight_device)) {
+		pr_warning(DRV_PFX "unable to register backlight device\n");
+		sony_backlight_device = NULL;
+	} else
+		sony_backlight_device->props.brightness =
+		    ops->get_brightness(sony_backlight_device);
+}
+
+static void sony_nc_backlight_cleanup(void)
+{
+	if (sony_backlight_device)
+		backlight_device_unregister(sony_backlight_device);
+}
+
 static int sony_nc_add(struct acpi_device *device)
 {
 	acpi_status status;
@@ -1252,8 +1561,8 @@ static int sony_nc_add(struct acpi_device *device)
 	acpi_handle handle;
 	struct sony_nc_value *item;
 
-	printk(KERN_INFO DRV_PFX "%s v%s.\n",
-		SONY_NC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
+	pr_info(DRV_PFX "%s v%s.\n", SONY_NC_DRIVER_NAME,
+			SONY_LAPTOP_DRIVER_VERSION);
 
 	sony_nc_acpi_device = device;
 	strcpy(acpi_device_class(device), "sony/hotkey");
@@ -1269,13 +1578,18 @@ static int sony_nc_add(struct acpi_device *device)
 		goto outwalk;
 	}
 
+	result = sony_pf_add();
+	if (result)
+		goto outpresent;
+
 	if (debug) {
-		status = acpi_walk_namespace(ACPI_TYPE_METHOD, sony_nc_acpi_handle,
-					     1, sony_walk_callback, NULL, NULL, NULL);
+		status = acpi_walk_namespace(ACPI_TYPE_METHOD,
+				sony_nc_acpi_handle, 1, sony_walk_callback,
+				NULL, NULL, NULL);
 		if (ACPI_FAILURE(status)) {
-			printk(KERN_WARNING DRV_PFX "unable to walk acpi resources\n");
+			pr_warn(DRV_PFX "unable to walk acpi resources\n");
 			result = -ENODEV;
-			goto outwalk;
+			goto outpresent;
 		}
 	}
 
@@ -1288,6 +1602,12 @@ static int sony_nc_add(struct acpi_device *device)
 	if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "SN00",
 					 &handle))) {
 		dprintk("Doing SNC setup\n");
+		result = sony_nc_handles_setup(sony_pf_device);
+		if (result)
+			goto outpresent;
+		result = sony_nc_kbd_backlight_setup(sony_pf_device);
+		if (result)
+			goto outsnc;
 		sony_nc_function_setup(device);
 		sony_nc_rfkill_setup(device);
 	}
@@ -1295,40 +1615,17 @@ static int sony_nc_add(struct acpi_device *device)
 	/* setup input devices and helper fifo */
 	result = sony_laptop_setup_input(device);
 	if (result) {
-		printk(KERN_ERR DRV_PFX
-				"Unable to create input devices.\n");
-		goto outwalk;
+		pr_err(DRV_PFX "Unable to create input devices.\n");
+		goto outkbdbacklight;
 	}
 
 	if (acpi_video_backlight_support()) {
-		printk(KERN_INFO DRV_PFX "brightness ignored, must be "
+		pr_info(DRV_PFX "brightness ignored, must be "
 		       "controlled by ACPI video driver\n");
-	} else if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT",
-						&handle))) {
-		struct backlight_properties props;
-		memset(&props, 0, sizeof(struct backlight_properties));
-		props.type = BACKLIGHT_PLATFORM;
-		props.max_brightness = SONY_MAX_BRIGHTNESS - 1;
-		sony_backlight_device = backlight_device_register("sony", NULL,
-								  NULL,
-								  &sony_backlight_ops,
-								  &props);
-
-		if (IS_ERR(sony_backlight_device)) {
-			printk(KERN_WARNING DRV_PFX "unable to register backlight device\n");
-			sony_backlight_device = NULL;
-		} else {
-			sony_backlight_device->props.brightness =
-			    sony_backlight_get_brightness
-			    (sony_backlight_device);
-		}
-
+	} else {
+		sony_nc_backlight_setup();
 	}
 
-	result = sony_pf_add();
-	if (result)
-		goto outbacklight;
-
 	/* create sony_pf sysfs attributes related to the SNC device */
 	for (item = sony_nc_values; item->name; ++item) {
 
@@ -1374,14 +1671,19 @@ static int sony_nc_add(struct acpi_device *device)
 	for (item = sony_nc_values; item->name; ++item) {
 		device_remove_file(&sony_pf_device->dev, &item->devattr);
 	}
-	sony_pf_remove();
-
-      outbacklight:
-	if (sony_backlight_device)
-		backlight_device_unregister(sony_backlight_device);
+	sony_nc_backlight_cleanup();
 
 	sony_laptop_remove_input();
 
+      outkbdbacklight:
+	sony_nc_kbd_backlight_cleanup(sony_pf_device);
+
+      outsnc:
+	sony_nc_handles_cleanup(sony_pf_device);
+
+      outpresent:
+	sony_pf_remove();
+
       outwalk:
 	sony_nc_rfkill_cleanup();
 	return result;
@@ -1391,8 +1693,7 @@ static int sony_nc_remove(struct acpi_device *device, int type)
 {
 	struct sony_nc_value *item;
 
-	if (sony_backlight_device)
-		backlight_device_unregister(sony_backlight_device);
+	sony_nc_backlight_cleanup();
 
 	sony_nc_acpi_device = NULL;
 
@@ -1400,6 +1701,8 @@ static int sony_nc_remove(struct acpi_device *device, int type)
 		device_remove_file(&sony_pf_device->dev, &item->devattr);
 	}
 
+	sony_nc_kbd_backlight_cleanup(sony_pf_device);
+	sony_nc_handles_cleanup(sony_pf_device);
 	sony_pf_remove();
 	sony_laptop_remove_input();
 	sony_nc_rfkill_cleanup();
@@ -1438,7 +1741,6 @@ static struct acpi_driver sony_nc_driver = {
 #define SONYPI_DEVICE_TYPE1	0x00000001
 #define SONYPI_DEVICE_TYPE2	0x00000002
 #define SONYPI_DEVICE_TYPE3	0x00000004
-#define SONYPI_DEVICE_TYPE4	0x00000008
 
 #define SONYPI_TYPE1_OFFSET	0x04
 #define SONYPI_TYPE2_OFFSET	0x12
@@ -1584,8 +1886,8 @@ static struct sonypi_event sonypi_blueev[] = {
 
 /* The set of possible wireless events */
 static struct sonypi_event sonypi_wlessev[] = {
-	{ 0x59, SONYPI_EVENT_WIRELESS_ON },
-	{ 0x5a, SONYPI_EVENT_WIRELESS_OFF },
+	{ 0x59, SONYPI_EVENT_IGNORE },
+	{ 0x5a, SONYPI_EVENT_IGNORE },
 	{ 0, 0 }
 };
 
@@ -1842,7 +2144,7 @@ out:
 	if (pcidev)
 		pci_dev_put(pcidev);
 
-	printk(KERN_INFO DRV_PFX "detected Type%d model\n",
+	pr_info(DRV_PFX "detected Type%d model\n",
 			dev->model == SONYPI_DEVICE_TYPE1 ? 1 :
 			dev->model == SONYPI_DEVICE_TYPE2 ? 2 : 3);
 }
@@ -1890,7 +2192,7 @@ static int __sony_pic_camera_ready(void)
 static int __sony_pic_camera_off(void)
 {
 	if (!camera) {
-		printk(KERN_WARNING DRV_PFX "camera control not enabled\n");
+		pr_warn(DRV_PFX "camera control not enabled\n");
 		return -ENODEV;
 	}
 
@@ -1910,7 +2212,7 @@ static int __sony_pic_camera_on(void)
 	int i, j, x;
 
 	if (!camera) {
-		printk(KERN_WARNING DRV_PFX "camera control not enabled\n");
+		pr_warn(DRV_PFX "camera control not enabled\n");
 		return -ENODEV;
 	}
 
@@ -1933,7 +2235,7 @@ static int __sony_pic_camera_on(void)
 	}
 
 	if (j == 0) {
-		printk(KERN_WARNING DRV_PFX "failed to power on camera\n");
+		pr_warn(DRV_PFX "failed to power on camera\n");
 		return -ENODEV;
 	}
 
@@ -1989,7 +2291,7 @@ int sony_pic_camera_command(int command, u8 value)
 				ITERATIONS_SHORT);
 		break;
 	default:
-		printk(KERN_ERR DRV_PFX "sony_pic_camera_command invalid: %d\n",
+		pr_err(DRV_PFX "sony_pic_camera_command invalid: %d\n",
 		       command);
 		break;
 	}
@@ -2396,7 +2698,7 @@ static int sonypi_compat_init(void)
 	error =
 	 kfifo_alloc(&sonypi_compat.fifo, SONY_LAPTOP_BUF_SIZE, GFP_KERNEL);
 	if (error) {
-		printk(KERN_ERR DRV_PFX "kfifo_alloc failed\n");
+		pr_err(DRV_PFX "kfifo_alloc failed\n");
 		return error;
 	}
 
@@ -2406,11 +2708,11 @@ static int sonypi_compat_init(void)
 		sonypi_misc_device.minor = minor;
 	error = misc_register(&sonypi_misc_device);
 	if (error) {
-		printk(KERN_ERR DRV_PFX "misc_register failed\n");
+		pr_err(DRV_PFX "misc_register failed\n");
 		goto err_free_kfifo;
 	}
 	if (minor == -1)
-		printk(KERN_INFO DRV_PFX "device allocated minor is %d\n",
+		pr_info(DRV_PFX "device allocated minor is %d\n",
 		       sonypi_misc_device.minor);
 
 	return 0;
@@ -2470,8 +2772,7 @@ sony_pic_read_possible_resource(struct acpi_resource *resource, void *context)
 			}
 			for (i = 0; i < p->interrupt_count; i++) {
 				if (!p->interrupts[i]) {
-					printk(KERN_WARNING DRV_PFX
-							"Invalid IRQ %d\n",
+					pr_warn(DRV_PFX "Invalid IRQ %d\n",
 							p->interrupts[i]);
 					continue;
 				}
@@ -2510,7 +2811,7 @@ sony_pic_read_possible_resource(struct acpi_resource *resource, void *context)
 						ioport->io2.address_length);
 			}
 			else {
-				printk(KERN_ERR DRV_PFX "Unknown SPIC Type, more than 2 IO Ports\n");
+				pr_err(DRV_PFX "Unknown SPIC Type, more than 2 IO Ports\n");
 				return AE_ERROR;
 			}
 			return AE_OK;
@@ -2538,7 +2839,7 @@ static int sony_pic_possible_resources(struct acpi_device *device)
 	dprintk("Evaluating _STA\n");
 	result = acpi_bus_get_status(device);
 	if (result) {
-		printk(KERN_WARNING DRV_PFX "Unable to read status\n");
+		pr_warn(DRV_PFX "Unable to read status\n");
 		goto end;
 	}
 
@@ -2554,8 +2855,7 @@ static int sony_pic_possible_resources(struct acpi_device *device)
 	status = acpi_walk_resources(device->handle, METHOD_NAME__PRS,
 			sony_pic_read_possible_resource, &spic_dev);
 	if (ACPI_FAILURE(status)) {
-		printk(KERN_WARNING DRV_PFX
-				"Failure evaluating %s\n",
+		pr_warn(DRV_PFX "Failure evaluating %s\n",
 				METHOD_NAME__PRS);
 		result = -ENODEV;
 	}
@@ -2669,7 +2969,7 @@ static int sony_pic_enable(struct acpi_device *device,
 
 	/* check for total failure */
 	if (ACPI_FAILURE(status)) {
-		printk(KERN_ERR DRV_PFX "Error evaluating _SRS\n");
+		pr_err(DRV_PFX "Error evaluating _SRS\n");
 		result = -ENODEV;
 		goto end;
 	}
@@ -2725,6 +3025,9 @@ static irqreturn_t sony_pic_irq(int irq, void *dev_id)
 			if (ev == dev->event_types[i].events[j].data) {
 				device_event =
 					dev->event_types[i].events[j].event;
+				/* some events may require ignoring */
+				if (!device_event)
+					return IRQ_HANDLED;
 				goto found;
 			}
 		}
@@ -2744,7 +3047,6 @@ found:
 	sony_laptop_report_input_event(device_event);
 	acpi_bus_generate_proc_event(dev->acpi_dev, 1, device_event);
 	sonypi_compat_report_event(device_event);
-
 	return IRQ_HANDLED;
 }
 
@@ -2759,7 +3061,7 @@ static int sony_pic_remove(struct acpi_device *device, int type)
 	struct sony_pic_irq *irq, *tmp_irq;
 
 	if (sony_pic_disable(device)) {
-		printk(KERN_ERR DRV_PFX "Couldn't disable device.\n");
+		pr_err(DRV_PFX "Couldn't disable device.\n");
 		return -ENXIO;
 	}
 
@@ -2799,8 +3101,8 @@ static int sony_pic_add(struct acpi_device *device)
 	struct sony_pic_ioport *io, *tmp_io;
 	struct sony_pic_irq *irq, *tmp_irq;
 
-	printk(KERN_INFO DRV_PFX "%s v%s.\n",
-		SONY_PIC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
+	pr_info(DRV_PFX "%s v%s.\n", SONY_PIC_DRIVER_NAME,
+			SONY_LAPTOP_DRIVER_VERSION);
 
 	spic_dev.acpi_dev = device;
 	strcpy(acpi_device_class(device), "sony/hotkey");
@@ -2810,16 +3112,14 @@ static int sony_pic_add(struct acpi_device *device)
 	/* read _PRS resources */
 	result = sony_pic_possible_resources(device);
 	if (result) {
-		printk(KERN_ERR DRV_PFX
-				"Unable to read possible resources.\n");
+		pr_err(DRV_PFX "Unable to read possible resources.\n");
 		goto err_free_resources;
 	}
 
 	/* setup input devices and helper fifo */
 	result = sony_laptop_setup_input(device);
 	if (result) {
-		printk(KERN_ERR DRV_PFX
-				"Unable to create input devices.\n");
+		pr_err(DRV_PFX "Unable to create input devices.\n");
 		goto err_free_resources;
 	}
 
@@ -2829,7 +3129,7 @@ static int sony_pic_add(struct acpi_device *device)
 	/* request io port */
 	list_for_each_entry_reverse(io, &spic_dev.ioports, list) {
 		if (request_region(io->io1.minimum, io->io1.address_length,
-					"Sony Programable I/O Device")) {
+					"Sony Programmable I/O Device")) {
 			dprintk("I/O port1: 0x%.4x (0x%.4x) + 0x%.2x\n",
 					io->io1.minimum, io->io1.maximum,
 					io->io1.address_length);
@@ -2837,7 +3137,7 @@ static int sony_pic_add(struct acpi_device *device)
 			if (io->io2.minimum) {
 				if (request_region(io->io2.minimum,
 						io->io2.address_length,
-						"Sony Programable I/O Device")) {
+						"Sony Programmable I/O Device")) {
 					dprintk("I/O port2: 0x%.4x (0x%.4x) + 0x%.2x\n",
 							io->io2.minimum, io->io2.maximum,
 							io->io2.address_length);
@@ -2860,7 +3160,7 @@ static int sony_pic_add(struct acpi_device *device)
 		}
 	}
 	if (!spic_dev.cur_ioport) {
-		printk(KERN_ERR DRV_PFX "Failed to request_region.\n");
+		pr_err(DRV_PFX "Failed to request_region.\n");
 		result = -ENODEV;
 		goto err_remove_compat;
 	}
@@ -2880,7 +3180,7 @@ static int sony_pic_add(struct acpi_device *device)
 		}
 	}
 	if (!spic_dev.cur_irq) {
-		printk(KERN_ERR DRV_PFX "Failed to request_irq.\n");
+		pr_err(DRV_PFX "Failed to request_irq.\n");
 		result = -ENODEV;
 		goto err_release_region;
 	}
@@ -2888,7 +3188,7 @@ static int sony_pic_add(struct acpi_device *device)
 	/* set resource status _SRS */
 	result = sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
 	if (result) {
-		printk(KERN_ERR DRV_PFX "Couldn't enable device.\n");
+		pr_err(DRV_PFX "Couldn't enable device.\n");
 		goto err_free_irq;
 	}
 
@@ -2997,8 +3297,7 @@ static int __init sony_laptop_init(void)
 	if (!no_spic && dmi_check_system(sonypi_dmi_table)) {
 		result = acpi_bus_register_driver(&sony_pic_driver);
 		if (result) {
-			printk(KERN_ERR DRV_PFX
-					"Unable to register SPIC driver.");
+			pr_err(DRV_PFX "Unable to register SPIC driver.");
 			goto out;
 		}
 		spic_drv_registered = 1;
@@ -3006,7 +3305,7 @@ static int __init sony_laptop_init(void)
 
 	result = acpi_bus_register_driver(&sony_nc_driver);
 	if (result) {
-		printk(KERN_ERR DRV_PFX "Unable to register SNC driver.");
+		pr_err(DRV_PFX "Unable to register SNC driver.");
 		goto out_unregister_pic;
 	}
 
diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index 947bdcaa0ce9..a08561f5349e 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -2407,7 +2407,7 @@ static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn,
 	 * This code is supposed to duplicate the IBM firmware behaviour:
 	 * - Pressing MUTE issues mute hotkey message, even when already mute
 	 * - Pressing Volume up/down issues volume up/down hotkey messages,
-	 *   even when already at maximum or minumum volume
+	 *   even when already at maximum or minimum volume
 	 * - The act of unmuting issues volume up/down notification,
 	 *   depending which key was used to unmute
 	 *
@@ -2990,7 +2990,7 @@ static void tpacpi_send_radiosw_update(void)
 	 * rfkill input events, or we will race the rfkill core input
 	 * handler.
 	 *
-	 * tpacpi_inputdev_send_mutex works as a syncronization point
+	 * tpacpi_inputdev_send_mutex works as a synchronization point
 	 * for the above.
 	 *
 	 * We optimize to avoid numerous calls to hotkey_get_wlsw.
diff --git a/drivers/platform/x86/xo15-ebook.c b/drivers/platform/x86/xo15-ebook.c
new file mode 100644
index 000000000000..c1372ed9d2e9
--- /dev/null
+++ b/drivers/platform/x86/xo15-ebook.c
@@ -0,0 +1,180 @@
+/*
+ *  OLPC XO-1.5 ebook switch driver
+ *  (based on generic ACPI button driver)
+ *
+ *  Copyright (C) 2009 Paul Fox <pgf@laptop.org>
+ *  Copyright (C) 2010 One Laptop per Child
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or (at
+ *  your option) any later version.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/input.h>
+#include <acpi/acpi_bus.h>
+#include <acpi/acpi_drivers.h>
+
+#define MODULE_NAME "xo15-ebook"
+#define PREFIX MODULE_NAME ": "
+
+#define XO15_EBOOK_CLASS		MODULE_NAME
+#define XO15_EBOOK_TYPE_UNKNOWN	0x00
+#define XO15_EBOOK_NOTIFY_STATUS	0x80
+
+#define XO15_EBOOK_SUBCLASS		"ebook"
+#define XO15_EBOOK_HID			"XO15EBK"
+#define XO15_EBOOK_DEVICE_NAME		"EBook Switch"
+
+ACPI_MODULE_NAME(MODULE_NAME);
+
+MODULE_DESCRIPTION("OLPC XO-1.5 ebook switch driver");
+MODULE_LICENSE("GPL");
+
+static const struct acpi_device_id ebook_device_ids[] = {
+	{ XO15_EBOOK_HID, 0 },
+	{ "", 0 },
+};
+MODULE_DEVICE_TABLE(acpi, ebook_device_ids);
+
+struct ebook_switch {
+	struct input_dev *input;
+	char phys[32];			/* for input device */
+};
+
+static int ebook_send_state(struct acpi_device *device)
+{
+	struct ebook_switch *button = acpi_driver_data(device);
+	unsigned long long state;
+	acpi_status status;
+
+	status = acpi_evaluate_integer(device->handle, "EBK", NULL, &state);
+	if (ACPI_FAILURE(status))
+		return -EIO;
+
+	/* input layer checks if event is redundant */
+	input_report_switch(button->input, SW_TABLET_MODE, !state);
+	input_sync(button->input);
+	return 0;
+}
+
+static void ebook_switch_notify(struct acpi_device *device, u32 event)
+{
+	switch (event) {
+	case ACPI_FIXED_HARDWARE_EVENT:
+	case XO15_EBOOK_NOTIFY_STATUS:
+		ebook_send_state(device);
+		break;
+	default:
+		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+				  "Unsupported event [0x%x]\n", event));
+		break;
+	}
+}
+
+static int ebook_switch_resume(struct acpi_device *device)
+{
+	return ebook_send_state(device);
+}
+
+static int ebook_switch_add(struct acpi_device *device)
+{
+	struct ebook_switch *button;
+	struct input_dev *input;
+	const char *hid = acpi_device_hid(device);
+	char *name, *class;
+	int error;
+
+	button = kzalloc(sizeof(struct ebook_switch), GFP_KERNEL);
+	if (!button)
+		return -ENOMEM;
+
+	device->driver_data = button;
+
+	button->input = input = input_allocate_device();
+	if (!input) {
+		error = -ENOMEM;
+		goto err_free_button;
+	}
+
+	name = acpi_device_name(device);
+	class = acpi_device_class(device);
+
+	if (strcmp(hid, XO15_EBOOK_HID)) {
+		printk(KERN_ERR PREFIX "Unsupported hid [%s]\n", hid);
+		error = -ENODEV;
+		goto err_free_input;
+	}
+
+	strcpy(name, XO15_EBOOK_DEVICE_NAME);
+	sprintf(class, "%s/%s", XO15_EBOOK_CLASS, XO15_EBOOK_SUBCLASS);
+
+	snprintf(button->phys, sizeof(button->phys), "%s/button/input0", hid);
+
+	input->name = name;
+	input->phys = button->phys;
+	input->id.bustype = BUS_HOST;
+	input->dev.parent = &device->dev;
+
+	input->evbit[0] = BIT_MASK(EV_SW);
+	set_bit(SW_TABLET_MODE, input->swbit);
+
+	error = input_register_device(input);
+	if (error)
+		goto err_free_input;
+
+	ebook_send_state(device);
+
+	if (device->wakeup.flags.valid) {
+		/* Button's GPE is run-wake GPE */
+		acpi_enable_gpe(device->wakeup.gpe_device,
+				device->wakeup.gpe_number);
+		device_set_wakeup_enable(&device->dev, true);
+	}
+
+	return 0;
+
+ err_free_input:
+	input_free_device(input);
+ err_free_button:
+	kfree(button);
+	return error;
+}
+
+static int ebook_switch_remove(struct acpi_device *device, int type)
+{
+	struct ebook_switch *button = acpi_driver_data(device);
+
+	input_unregister_device(button->input);
+	kfree(button);
+	return 0;
+}
+
+static struct acpi_driver xo15_ebook_driver = {
+	.name = MODULE_NAME,
+	.class = XO15_EBOOK_CLASS,
+	.ids = ebook_device_ids,
+	.ops = {
+		.add = ebook_switch_add,
+		.resume = ebook_switch_resume,
+		.remove = ebook_switch_remove,
+		.notify = ebook_switch_notify,
+	},
+};
+
+static int __init xo15_ebook_init(void)
+{
+	return acpi_bus_register_driver(&xo15_ebook_driver);
+}
+
+static void __exit xo15_ebook_exit(void)
+{
+	acpi_bus_unregister_driver(&xo15_ebook_driver);
+}
+
+module_init(xo15_ebook_init);
+module_exit(xo15_ebook_exit);
diff --git a/drivers/pnp/card.c b/drivers/pnp/card.c
index 4a651f69e17c..bc00693d0c79 100644
--- a/drivers/pnp/card.c
+++ b/drivers/pnp/card.c
@@ -320,7 +320,7 @@ void pnp_remove_card_device(struct pnp_dev *dev)
  * pnp_request_card_device - Searches for a PnP device under the specified card
  * @clink: pointer to the card link, cannot be NULL
  * @id: pointer to a PnP ID structure that explains the rules for finding the device
- * @from: Starting place to search from. If NULL it will start from the begining.
+ * @from: Starting place to search from. If NULL it will start from the beginning.
  */
 struct pnp_dev *pnp_request_card_device(struct pnp_card_link *clink,
 					const char *id, struct pnp_dev *from)
@@ -369,7 +369,7 @@ err_out:
 
 /**
  * pnp_release_card_device - call this when the driver no longer needs the device
- * @dev: pointer to the PnP device stucture
+ * @dev: pointer to the PnP device structure
  */
 void pnp_release_card_device(struct pnp_dev *dev)
 {
diff --git a/drivers/pnp/pnpbios/bioscalls.c b/drivers/pnp/pnpbios/bioscalls.c
index 8591f6ab1b35..b859d16cf78c 100644
--- a/drivers/pnp/pnpbios/bioscalls.c
+++ b/drivers/pnp/pnpbios/bioscalls.c
@@ -219,7 +219,7 @@ void pnpbios_print_status(const char *module, u16 status)
 		       module);
 		break;
 	case PNP_HARDWARE_ERROR:
-		printk(KERN_ERR "PnPBIOS: %s: a hardware failure has occured\n",
+		printk(KERN_ERR "PnPBIOS: %s: a hardware failure has occurred\n",
 		       module);
 		break;
 	default:
diff --git a/drivers/power/Kconfig b/drivers/power/Kconfig
index 61bf5d724139..52a462fc6b84 100644
--- a/drivers/power/Kconfig
+++ b/drivers/power/Kconfig
@@ -117,10 +117,24 @@ config BATTERY_BQ20Z75
 
 config BATTERY_BQ27x00
 	tristate "BQ27x00 battery driver"
+	help
+	  Say Y here to enable support for batteries with BQ27x00 (I2C/HDQ) chips.
+
+config BATTERY_BQ27X00_I2C
+	bool "BQ27200/BQ27500 support"
+	depends on BATTERY_BQ27x00
 	depends on I2C
+	default y
 	help
 	  Say Y here to enable support for batteries with BQ27x00 (I2C) chips.
 
+config BATTERY_BQ27X00_PLATFORM
+	bool "BQ27000 support"
+	depends on BATTERY_BQ27x00
+	default y
+	help
+	  Say Y here to enable support for batteries with BQ27000 (HDQ) chips.
+
 config BATTERY_DA9030
 	tristate "DA9030 battery driver"
 	depends on PMIC_DA903X
diff --git a/drivers/power/bq20z75.c b/drivers/power/bq20z75.c
index 492da27e1a47..506585e31a5b 100644
--- a/drivers/power/bq20z75.c
+++ b/drivers/power/bq20z75.c
@@ -25,6 +25,10 @@
 #include <linux/power_supply.h>
 #include <linux/i2c.h>
 #include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/gpio.h>
+
+#include <linux/power/bq20z75.h>
 
 enum {
 	REG_MANUFACTURER_DATA,
@@ -38,11 +42,22 @@ enum {
 	REG_CYCLE_COUNT,
 	REG_SERIAL_NUMBER,
 	REG_REMAINING_CAPACITY,
+	REG_REMAINING_CAPACITY_CHARGE,
 	REG_FULL_CHARGE_CAPACITY,
+	REG_FULL_CHARGE_CAPACITY_CHARGE,
 	REG_DESIGN_CAPACITY,
+	REG_DESIGN_CAPACITY_CHARGE,
 	REG_DESIGN_VOLTAGE,
 };
 
+/* Battery Mode defines */
+#define BATTERY_MODE_OFFSET		0x03
+#define BATTERY_MODE_MASK		0x8000
+enum bq20z75_battery_mode {
+	BATTERY_MODE_AMPS,
+	BATTERY_MODE_WATTS
+};
+
 /* manufacturer access defines */
 #define MANUFACTURER_ACCESS_STATUS	0x0006
 #define MANUFACTURER_ACCESS_SLEEP	0x0011
@@ -78,8 +93,12 @@ static const struct bq20z75_device_data {
 		BQ20Z75_DATA(POWER_SUPPLY_PROP_CAPACITY, 0x0E, 0, 100),
 	[REG_REMAINING_CAPACITY] =
 		BQ20Z75_DATA(POWER_SUPPLY_PROP_ENERGY_NOW, 0x0F, 0, 65535),
+	[REG_REMAINING_CAPACITY_CHARGE] =
+		BQ20Z75_DATA(POWER_SUPPLY_PROP_CHARGE_NOW, 0x0F, 0, 65535),
 	[REG_FULL_CHARGE_CAPACITY] =
 		BQ20Z75_DATA(POWER_SUPPLY_PROP_ENERGY_FULL, 0x10, 0, 65535),
+	[REG_FULL_CHARGE_CAPACITY_CHARGE] =
+		BQ20Z75_DATA(POWER_SUPPLY_PROP_CHARGE_FULL, 0x10, 0, 65535),
 	[REG_TIME_TO_EMPTY] =
 		BQ20Z75_DATA(POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG, 0x12, 0,
 			65535),
@@ -93,6 +112,9 @@ static const struct bq20z75_device_data {
 	[REG_DESIGN_CAPACITY] =
 		BQ20Z75_DATA(POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN, 0x18, 0,
 			65535),
+	[REG_DESIGN_CAPACITY_CHARGE] =
+		BQ20Z75_DATA(POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, 0x18, 0,
+			65535),
 	[REG_DESIGN_VOLTAGE] =
 		BQ20Z75_DATA(POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN, 0x19, 0,
 			65535),
@@ -117,39 +139,72 @@ static enum power_supply_property bq20z75_properties[] = {
 	POWER_SUPPLY_PROP_ENERGY_NOW,
 	POWER_SUPPLY_PROP_ENERGY_FULL,
 	POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN,
+	POWER_SUPPLY_PROP_CHARGE_NOW,
+	POWER_SUPPLY_PROP_CHARGE_FULL,
+	POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
 };
 
 struct bq20z75_info {
-	struct i2c_client	*client;
-	struct power_supply	power_supply;
+	struct i2c_client		*client;
+	struct power_supply		power_supply;
+	struct bq20z75_platform_data	*pdata;
+	bool				is_present;
+	bool				gpio_detect;
+	bool				enable_detection;
+	int				irq;
 };
 
 static int bq20z75_read_word_data(struct i2c_client *client, u8 address)
 {
-	s32 ret;
+	struct bq20z75_info *bq20z75_device = i2c_get_clientdata(client);
+	s32 ret = 0;
+	int retries = 1;
+
+	if (bq20z75_device->pdata)
+		retries = max(bq20z75_device->pdata->i2c_retry_count + 1, 1);
+
+	while (retries > 0) {
+		ret = i2c_smbus_read_word_data(client, address);
+		if (ret >= 0)
+			break;
+		retries--;
+	}
 
-	ret = i2c_smbus_read_word_data(client, address);
 	if (ret < 0) {
-		dev_err(&client->dev,
+		dev_dbg(&client->dev,
 			"%s: i2c read at address 0x%x failed\n",
 			__func__, address);
 		return ret;
 	}
+
 	return le16_to_cpu(ret);
 }
 
 static int bq20z75_write_word_data(struct i2c_client *client, u8 address,
 	u16 value)
 {
-	s32 ret;
+	struct bq20z75_info *bq20z75_device = i2c_get_clientdata(client);
+	s32 ret = 0;
+	int retries = 1;
+
+	if (bq20z75_device->pdata)
+		retries = max(bq20z75_device->pdata->i2c_retry_count + 1, 1);
+
+	while (retries > 0) {
+		ret = i2c_smbus_write_word_data(client, address,
+			le16_to_cpu(value));
+		if (ret >= 0)
+			break;
+		retries--;
+	}
 
-	ret = i2c_smbus_write_word_data(client, address, le16_to_cpu(value));
 	if (ret < 0) {
-		dev_err(&client->dev,
+		dev_dbg(&client->dev,
 			"%s: i2c write to address 0x%x failed\n",
 			__func__, address);
 		return ret;
 	}
+
 	return 0;
 }
 
@@ -158,6 +213,19 @@ static int bq20z75_get_battery_presence_and_health(
 	union power_supply_propval *val)
 {
 	s32 ret;
+	struct bq20z75_info *bq20z75_device = i2c_get_clientdata(client);
+
+	if (psp == POWER_SUPPLY_PROP_PRESENT &&
+		bq20z75_device->gpio_detect) {
+		ret = gpio_get_value(
+			bq20z75_device->pdata->battery_detect);
+		if (ret == bq20z75_device->pdata->battery_detect_present)
+			val->intval = 1;
+		else
+			val->intval = 0;
+		bq20z75_device->is_present = val->intval;
+		return ret;
+	}
 
 	/* Write to ManufacturerAccess with
 	 * ManufacturerAccess command and then
@@ -165,9 +233,11 @@ static int bq20z75_get_battery_presence_and_health(
 	ret = bq20z75_write_word_data(client,
 		bq20z75_data[REG_MANUFACTURER_DATA].addr,
 		MANUFACTURER_ACCESS_STATUS);
-	if (ret < 0)
+	if (ret < 0) {
+		if (psp == POWER_SUPPLY_PROP_PRESENT)
+			val->intval = 0; /* battery removed */
 		return ret;
-
+	}
 
 	ret = bq20z75_read_word_data(client,
 		bq20z75_data[REG_MANUFACTURER_DATA].addr);
@@ -248,30 +318,39 @@ static void  bq20z75_unit_adjustment(struct i2c_client *client,
 {
 #define BASE_UNIT_CONVERSION		1000
 #define BATTERY_MODE_CAP_MULT_WATT	(10 * BASE_UNIT_CONVERSION)
-#define TIME_UNIT_CONVERSION		600
-#define TEMP_KELVIN_TO_CELCIUS		2731
+#define TIME_UNIT_CONVERSION		60
+#define TEMP_KELVIN_TO_CELSIUS		2731
 	switch (psp) {
 	case POWER_SUPPLY_PROP_ENERGY_NOW:
 	case POWER_SUPPLY_PROP_ENERGY_FULL:
 	case POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN:
+		/* bq20z75 provides energy in units of 10mWh.
+		 * Convert to µWh
+		 */
 		val->intval *= BATTERY_MODE_CAP_MULT_WATT;
 		break;
 
 	case POWER_SUPPLY_PROP_VOLTAGE_NOW:
 	case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN:
 	case POWER_SUPPLY_PROP_CURRENT_NOW:
+	case POWER_SUPPLY_PROP_CHARGE_NOW:
+	case POWER_SUPPLY_PROP_CHARGE_FULL:
+	case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN:
 		val->intval *= BASE_UNIT_CONVERSION;
 		break;
 
 	case POWER_SUPPLY_PROP_TEMP:
-		/* bq20z75 provides battery tempreture in 0.1°K
-		 * so convert it to 0.1°C */
-		val->intval -= TEMP_KELVIN_TO_CELCIUS;
-		val->intval *= 10;
+		/* bq20z75 provides battery temperature in 0.1K
+		 * so convert it to 0.1°C
+		 */
+		val->intval -= TEMP_KELVIN_TO_CELSIUS;
 		break;
 
 	case POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG:
 	case POWER_SUPPLY_PROP_TIME_TO_FULL_AVG:
+		/* bq20z75 provides time to empty and time to full in minutes.
+		 * Convert to seconds
+		 */
 		val->intval *= TIME_UNIT_CONVERSION;
 		break;
 
@@ -281,11 +360,44 @@ static void  bq20z75_unit_adjustment(struct i2c_client *client,
 	}
 }
 
+static enum bq20z75_battery_mode
+bq20z75_set_battery_mode(struct i2c_client *client,
+	enum bq20z75_battery_mode mode)
+{
+	int ret, original_val;
+
+	original_val = bq20z75_read_word_data(client, BATTERY_MODE_OFFSET);
+	if (original_val < 0)
+		return original_val;
+
+	if ((original_val & BATTERY_MODE_MASK) == mode)
+		return mode;
+
+	if (mode == BATTERY_MODE_AMPS)
+		ret = original_val & ~BATTERY_MODE_MASK;
+	else
+		ret = original_val | BATTERY_MODE_MASK;
+
+	ret = bq20z75_write_word_data(client, BATTERY_MODE_OFFSET, ret);
+	if (ret < 0)
+		return ret;
+
+	return original_val & BATTERY_MODE_MASK;
+}
+
 static int bq20z75_get_battery_capacity(struct i2c_client *client,
 	int reg_offset, enum power_supply_property psp,
 	union power_supply_propval *val)
 {
 	s32 ret;
+	enum bq20z75_battery_mode mode = BATTERY_MODE_WATTS;
+
+	if (power_supply_is_amp_property(psp))
+		mode = BATTERY_MODE_AMPS;
+
+	mode = bq20z75_set_battery_mode(client, mode);
+	if (mode < 0)
+		return mode;
 
 	ret = bq20z75_read_word_data(client, bq20z75_data[reg_offset].addr);
 	if (ret < 0)
@@ -298,6 +410,10 @@ static int bq20z75_get_battery_capacity(struct i2c_client *client,
 	} else
 		val->intval = ret;
 
+	ret = bq20z75_set_battery_mode(client, mode);
+	if (ret < 0)
+		return ret;
+
 	return 0;
 }
 
@@ -318,12 +434,25 @@ static int bq20z75_get_battery_serial_number(struct i2c_client *client,
 	return 0;
 }
 
+static int bq20z75_get_property_index(struct i2c_client *client,
+	enum power_supply_property psp)
+{
+	int count;
+	for (count = 0; count < ARRAY_SIZE(bq20z75_data); count++)
+		if (psp == bq20z75_data[count].psp)
+			return count;
+
+	dev_warn(&client->dev,
+		"%s: Invalid Property - %d\n", __func__, psp);
+
+	return -EINVAL;
+}
+
 static int bq20z75_get_property(struct power_supply *psy,
 	enum power_supply_property psp,
 	union power_supply_propval *val)
 {
-	int count;
-	int ret;
+	int ret = 0;
 	struct bq20z75_info *bq20z75_device = container_of(psy,
 				struct bq20z75_info, power_supply);
 	struct i2c_client *client = bq20z75_device->client;
@@ -332,8 +461,8 @@ static int bq20z75_get_property(struct power_supply *psy,
 	case POWER_SUPPLY_PROP_PRESENT:
 	case POWER_SUPPLY_PROP_HEALTH:
 		ret = bq20z75_get_battery_presence_and_health(client, psp, val);
-		if (ret)
-			return ret;
+		if (psp == POWER_SUPPLY_PROP_PRESENT)
+			return 0;
 		break;
 
 	case POWER_SUPPLY_PROP_TECHNOLOGY:
@@ -343,22 +472,19 @@ static int bq20z75_get_property(struct power_supply *psy,
 	case POWER_SUPPLY_PROP_ENERGY_NOW:
 	case POWER_SUPPLY_PROP_ENERGY_FULL:
 	case POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN:
+	case POWER_SUPPLY_PROP_CHARGE_NOW:
+	case POWER_SUPPLY_PROP_CHARGE_FULL:
+	case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN:
 	case POWER_SUPPLY_PROP_CAPACITY:
-		for (count = 0; count < ARRAY_SIZE(bq20z75_data); count++) {
-			if (psp == bq20z75_data[count].psp)
-				break;
-		}
-
-		ret = bq20z75_get_battery_capacity(client, count, psp, val);
-		if (ret)
-			return ret;
+		ret = bq20z75_get_property_index(client, psp);
+		if (ret < 0)
+			break;
 
+		ret = bq20z75_get_battery_capacity(client, ret, psp, val);
 		break;
 
 	case POWER_SUPPLY_PROP_SERIAL_NUMBER:
 		ret = bq20z75_get_battery_serial_number(client, val);
-		if (ret)
-			return ret;
 		break;
 
 	case POWER_SUPPLY_PROP_STATUS:
@@ -369,15 +495,11 @@ static int bq20z75_get_property(struct power_supply *psy,
 	case POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG:
 	case POWER_SUPPLY_PROP_TIME_TO_FULL_AVG:
 	case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN:
-		for (count = 0; count < ARRAY_SIZE(bq20z75_data); count++) {
-			if (psp == bq20z75_data[count].psp)
-				break;
-		}
-
-		ret = bq20z75_get_battery_property(client, count, psp, val);
-		if (ret)
-			return ret;
+		ret = bq20z75_get_property_index(client, psp);
+		if (ret < 0)
+			break;
 
+		ret = bq20z75_get_battery_property(client, ret, psp, val);
 		break;
 
 	default:
@@ -386,26 +508,58 @@ static int bq20z75_get_property(struct power_supply *psy,
 		return -EINVAL;
 	}
 
-	/* Convert units to match requirements for power supply class */
-	bq20z75_unit_adjustment(client, psp, val);
+	if (!bq20z75_device->enable_detection)
+		goto done;
+
+	if (!bq20z75_device->gpio_detect &&
+		bq20z75_device->is_present != (ret >= 0)) {
+		bq20z75_device->is_present = (ret >= 0);
+		power_supply_changed(&bq20z75_device->power_supply);
+	}
+
+done:
+	if (!ret) {
+		/* Convert units to match requirements for power supply class */
+		bq20z75_unit_adjustment(client, psp, val);
+	}
 
 	dev_dbg(&client->dev,
-		"%s: property = %d, value = %d\n", __func__, psp, val->intval);
+		"%s: property = %d, value = %x\n", __func__, psp, val->intval);
+
+	if (ret && bq20z75_device->is_present)
+		return ret;
+
+	/* battery not present, so return NODATA for properties */
+	if (ret)
+		return -ENODATA;
 
 	return 0;
 }
 
-static int bq20z75_probe(struct i2c_client *client,
+static irqreturn_t bq20z75_irq(int irq, void *devid)
+{
+	struct power_supply *battery = devid;
+
+	power_supply_changed(battery);
+
+	return IRQ_HANDLED;
+}
+
+static int __devinit bq20z75_probe(struct i2c_client *client,
 	const struct i2c_device_id *id)
 {
 	struct bq20z75_info *bq20z75_device;
+	struct bq20z75_platform_data *pdata = client->dev.platform_data;
 	int rc;
+	int irq;
 
 	bq20z75_device = kzalloc(sizeof(struct bq20z75_info), GFP_KERNEL);
 	if (!bq20z75_device)
 		return -ENOMEM;
 
 	bq20z75_device->client = client;
+	bq20z75_device->enable_detection = false;
+	bq20z75_device->gpio_detect = false;
 	bq20z75_device->power_supply.name = "battery";
 	bq20z75_device->power_supply.type = POWER_SUPPLY_TYPE_BATTERY;
 	bq20z75_device->power_supply.properties = bq20z75_properties;
@@ -413,26 +567,86 @@ static int bq20z75_probe(struct i2c_client *client,
 		ARRAY_SIZE(bq20z75_properties);
 	bq20z75_device->power_supply.get_property = bq20z75_get_property;
 
+	if (pdata) {
+		bq20z75_device->gpio_detect =
+			gpio_is_valid(pdata->battery_detect);
+		bq20z75_device->pdata = pdata;
+	}
+
 	i2c_set_clientdata(client, bq20z75_device);
 
+	if (!bq20z75_device->gpio_detect)
+		goto skip_gpio;
+
+	rc = gpio_request(pdata->battery_detect, dev_name(&client->dev));
+	if (rc) {
+		dev_warn(&client->dev, "Failed to request gpio: %d\n", rc);
+		bq20z75_device->gpio_detect = false;
+		goto skip_gpio;
+	}
+
+	rc = gpio_direction_input(pdata->battery_detect);
+	if (rc) {
+		dev_warn(&client->dev, "Failed to get gpio as input: %d\n", rc);
+		gpio_free(pdata->battery_detect);
+		bq20z75_device->gpio_detect = false;
+		goto skip_gpio;
+	}
+
+	irq = gpio_to_irq(pdata->battery_detect);
+	if (irq <= 0) {
+		dev_warn(&client->dev, "Failed to get gpio as irq: %d\n", irq);
+		gpio_free(pdata->battery_detect);
+		bq20z75_device->gpio_detect = false;
+		goto skip_gpio;
+	}
+
+	rc = request_irq(irq, bq20z75_irq,
+		IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
+		dev_name(&client->dev), &bq20z75_device->power_supply);
+	if (rc) {
+		dev_warn(&client->dev, "Failed to request irq: %d\n", rc);
+		gpio_free(pdata->battery_detect);
+		bq20z75_device->gpio_detect = false;
+		goto skip_gpio;
+	}
+
+	bq20z75_device->irq = irq;
+
+skip_gpio:
+
 	rc = power_supply_register(&client->dev, &bq20z75_device->power_supply);
 	if (rc) {
 		dev_err(&client->dev,
 			"%s: Failed to register power supply\n", __func__);
-		kfree(bq20z75_device);
-		return rc;
+		goto exit_psupply;
 	}
 
 	dev_info(&client->dev,
 		"%s: battery gas gauge device registered\n", client->name);
 
 	return 0;
+
+exit_psupply:
+	if (bq20z75_device->irq)
+		free_irq(bq20z75_device->irq, &bq20z75_device->power_supply);
+	if (bq20z75_device->gpio_detect)
+		gpio_free(pdata->battery_detect);
+
+	kfree(bq20z75_device);
+
+	return rc;
 }
 
-static int bq20z75_remove(struct i2c_client *client)
+static int __devexit bq20z75_remove(struct i2c_client *client)
 {
 	struct bq20z75_info *bq20z75_device = i2c_get_clientdata(client);
 
+	if (bq20z75_device->irq)
+		free_irq(bq20z75_device->irq, &bq20z75_device->power_supply);
+	if (bq20z75_device->gpio_detect)
+		gpio_free(bq20z75_device->pdata->battery_detect);
+
 	power_supply_unregister(&bq20z75_device->power_supply);
 	kfree(bq20z75_device);
 	bq20z75_device = NULL;
@@ -444,13 +658,14 @@ static int bq20z75_remove(struct i2c_client *client)
 static int bq20z75_suspend(struct i2c_client *client,
 	pm_message_t state)
 {
+	struct bq20z75_info *bq20z75_device = i2c_get_clientdata(client);
 	s32 ret;
 
 	/* write to manufacturer access with sleep command */
 	ret = bq20z75_write_word_data(client,
 		bq20z75_data[REG_MANUFACTURER_DATA].addr,
 		MANUFACTURER_ACCESS_SLEEP);
-	if (ret < 0)
+	if (bq20z75_device->is_present && ret < 0)
 		return ret;
 
 	return 0;
@@ -465,10 +680,11 @@ static const struct i2c_device_id bq20z75_id[] = {
 	{ "bq20z75", 0 },
 	{}
 };
+MODULE_DEVICE_TABLE(i2c, bq20z75_id);
 
 static struct i2c_driver bq20z75_battery_driver = {
 	.probe		= bq20z75_probe,
-	.remove		= bq20z75_remove,
+	.remove		= __devexit_p(bq20z75_remove),
 	.suspend	= bq20z75_suspend,
 	.resume		= bq20z75_resume,
 	.id_table	= bq20z75_id,
diff --git a/drivers/power/bq27x00_battery.c b/drivers/power/bq27x00_battery.c
index eff0273d4030..59e68dbd028b 100644
--- a/drivers/power/bq27x00_battery.c
+++ b/drivers/power/bq27x00_battery.c
@@ -3,6 +3,7 @@
  *
  * Copyright (C) 2008 Rodolfo Giometti <giometti@linux.it>
  * Copyright (C) 2008 Eurotech S.p.A. <info@eurotech.it>
+ * Copyright (C) 2010-2011 Lars-Peter Clausen <lars@metafoo.de>
  *
  * Based on a previous work by Copyright (C) 2008 Texas Instruments, Inc.
  *
@@ -15,6 +16,13 @@
  * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  *
  */
+
+/*
+ * Datasheets:
+ * http://focus.ti.com/docs/prod/folders/print/bq27000.html
+ * http://focus.ti.com/docs/prod/folders/print/bq27500.html
+ */
+
 #include <linux/module.h>
 #include <linux/param.h>
 #include <linux/jiffies.h>
@@ -27,7 +35,9 @@
 #include <linux/slab.h>
 #include <asm/unaligned.h>
 
-#define DRIVER_VERSION			"1.1.0"
+#include <linux/power/bq27x00_battery.h>
+
+#define DRIVER_VERSION			"1.2.0"
 
 #define BQ27x00_REG_TEMP		0x06
 #define BQ27x00_REG_VOLT		0x08
@@ -36,36 +46,59 @@
 #define BQ27x00_REG_TTE			0x16
 #define BQ27x00_REG_TTF			0x18
 #define BQ27x00_REG_TTECP		0x26
+#define BQ27x00_REG_NAC			0x0C /* Nominal available capaciy */
+#define BQ27x00_REG_LMD			0x12 /* Last measured discharge */
+#define BQ27x00_REG_CYCT		0x2A /* Cycle count total */
+#define BQ27x00_REG_AE			0x22 /* Available enery */
 
 #define BQ27000_REG_RSOC		0x0B /* Relative State-of-Charge */
+#define BQ27000_REG_ILMD		0x76 /* Initial last measured discharge */
 #define BQ27000_FLAG_CHGS		BIT(7)
+#define BQ27000_FLAG_FC			BIT(5)
 
-#define BQ27500_REG_SOC			0x2c
+#define BQ27500_REG_SOC			0x2C
+#define BQ27500_REG_DCAP		0x3C /* Design capacity */
 #define BQ27500_FLAG_DSC		BIT(0)
 #define BQ27500_FLAG_FC			BIT(9)
 
-/* If the system has several batteries we need a different name for each
- * of them...
- */
-static DEFINE_IDR(battery_id);
-static DEFINE_MUTEX(battery_mutex);
+#define BQ27000_RS			20 /* Resistor sense */
 
 struct bq27x00_device_info;
 struct bq27x00_access_methods {
-	int (*read)(u8 reg, int *rt_value, int b_single,
-		struct bq27x00_device_info *di);
+	int (*read)(struct bq27x00_device_info *di, u8 reg, bool single);
 };
 
 enum bq27x00_chip { BQ27000, BQ27500 };
 
+struct bq27x00_reg_cache {
+	int temperature;
+	int time_to_empty;
+	int time_to_empty_avg;
+	int time_to_full;
+	int charge_full;
+	int charge_counter;
+	int capacity;
+	int flags;
+
+	int current_now;
+};
+
 struct bq27x00_device_info {
 	struct device 		*dev;
 	int			id;
-	struct bq27x00_access_methods	*bus;
-	struct power_supply	bat;
 	enum bq27x00_chip	chip;
 
-	struct i2c_client	*client;
+	struct bq27x00_reg_cache cache;
+	int charge_design_full;
+
+	unsigned long last_update;
+	struct delayed_work work;
+
+	struct power_supply	bat;
+
+	struct bq27x00_access_methods bus;
+
+	struct mutex lock;
 };
 
 static enum power_supply_property bq27x00_battery_props[] = {
@@ -78,164 +111,328 @@ static enum power_supply_property bq27x00_battery_props[] = {
 	POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW,
 	POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG,
 	POWER_SUPPLY_PROP_TIME_TO_FULL_NOW,
+	POWER_SUPPLY_PROP_TECHNOLOGY,
+	POWER_SUPPLY_PROP_CHARGE_FULL,
+	POWER_SUPPLY_PROP_CHARGE_NOW,
+	POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
+	POWER_SUPPLY_PROP_CHARGE_COUNTER,
+	POWER_SUPPLY_PROP_ENERGY_NOW,
 };
 
+static unsigned int poll_interval = 360;
+module_param(poll_interval, uint, 0644);
+MODULE_PARM_DESC(poll_interval, "battery poll interval in seconds - " \
+				"0 disables polling");
+
 /*
  * Common code for BQ27x00 devices
  */
 
-static int bq27x00_read(u8 reg, int *rt_value, int b_single,
-			struct bq27x00_device_info *di)
+static inline int bq27x00_read(struct bq27x00_device_info *di, u8 reg,
+		bool single)
 {
-	return di->bus->read(reg, rt_value, b_single, di);
+	return di->bus.read(di, reg, single);
 }
 
 /*
- * Return the battery temperature in tenths of degree Celsius
+ * Return the battery Relative State-of-Charge
  * Or < 0 if something fails.
  */
-static int bq27x00_battery_temperature(struct bq27x00_device_info *di)
+static int bq27x00_battery_read_rsoc(struct bq27x00_device_info *di)
 {
-	int ret;
-	int temp = 0;
+	int rsoc;
 
-	ret = bq27x00_read(BQ27x00_REG_TEMP, &temp, 0, di);
-	if (ret) {
-		dev_err(di->dev, "error reading temperature\n");
-		return ret;
+	if (di->chip == BQ27500)
+		rsoc = bq27x00_read(di, BQ27500_REG_SOC, false);
+	else
+		rsoc = bq27x00_read(di, BQ27000_REG_RSOC, true);
+
+	if (rsoc < 0)
+		dev_err(di->dev, "error reading relative State-of-Charge\n");
+
+	return rsoc;
+}
+
+/*
+ * Return a battery charge value in µAh
+ * Or < 0 if something fails.
+ */
+static int bq27x00_battery_read_charge(struct bq27x00_device_info *di, u8 reg)
+{
+	int charge;
+
+	charge = bq27x00_read(di, reg, false);
+	if (charge < 0) {
+		dev_err(di->dev, "error reading nominal available capacity\n");
+		return charge;
 	}
 
 	if (di->chip == BQ27500)
-		return temp - 2731;
+		charge *= 1000;
 	else
-		return ((temp >> 2) - 273) * 10;
+		charge = charge * 3570 / BQ27000_RS;
+
+	return charge;
 }
 
 /*
- * Return the battery Voltage in milivolts
+ * Return the battery Nominal available capaciy in µAh
  * Or < 0 if something fails.
  */
-static int bq27x00_battery_voltage(struct bq27x00_device_info *di)
+static inline int bq27x00_battery_read_nac(struct bq27x00_device_info *di)
 {
-	int ret;
-	int volt = 0;
+	return bq27x00_battery_read_charge(di, BQ27x00_REG_NAC);
+}
 
-	ret = bq27x00_read(BQ27x00_REG_VOLT, &volt, 0, di);
-	if (ret) {
-		dev_err(di->dev, "error reading voltage\n");
-		return ret;
+/*
+ * Return the battery Last measured discharge in µAh
+ * Or < 0 if something fails.
+ */
+static inline int bq27x00_battery_read_lmd(struct bq27x00_device_info *di)
+{
+	return bq27x00_battery_read_charge(di, BQ27x00_REG_LMD);
+}
+
+/*
+ * Return the battery Initial last measured discharge in µAh
+ * Or < 0 if something fails.
+ */
+static int bq27x00_battery_read_ilmd(struct bq27x00_device_info *di)
+{
+	int ilmd;
+
+	if (di->chip == BQ27500)
+		ilmd = bq27x00_read(di, BQ27500_REG_DCAP, false);
+	else
+		ilmd = bq27x00_read(di, BQ27000_REG_ILMD, true);
+
+	if (ilmd < 0) {
+		dev_err(di->dev, "error reading initial last measured discharge\n");
+		return ilmd;
 	}
 
-	return volt * 1000;
+	if (di->chip == BQ27500)
+		ilmd *= 1000;
+	else
+		ilmd = ilmd * 256 * 3570 / BQ27000_RS;
+
+	return ilmd;
 }
 
 /*
- * Return the battery average current
- * Note that current can be negative signed as well
- * Or 0 if something fails.
+ * Return the battery Cycle count total
+ * Or < 0 if something fails.
  */
-static int bq27x00_battery_current(struct bq27x00_device_info *di)
+static int bq27x00_battery_read_cyct(struct bq27x00_device_info *di)
 {
-	int ret;
-	int curr = 0;
-	int flags = 0;
+	int cyct;
 
-	ret = bq27x00_read(BQ27x00_REG_AI, &curr, 0, di);
-	if (ret) {
-		dev_err(di->dev, "error reading current\n");
-		return 0;
+	cyct = bq27x00_read(di, BQ27x00_REG_CYCT, false);
+	if (cyct < 0)
+		dev_err(di->dev, "error reading cycle count total\n");
+
+	return cyct;
+}
+
+/*
+ * Read a time register.
+ * Return < 0 if something fails.
+ */
+static int bq27x00_battery_read_time(struct bq27x00_device_info *di, u8 reg)
+{
+	int tval;
+
+	tval = bq27x00_read(di, reg, false);
+	if (tval < 0) {
+		dev_err(di->dev, "error reading register %02x: %d\n", reg, tval);
+		return tval;
 	}
 
-	if (di->chip == BQ27500) {
-		/* bq27500 returns signed value */
-		curr = (int)(s16)curr;
-	} else {
-		ret = bq27x00_read(BQ27x00_REG_FLAGS, &flags, 0, di);
-		if (ret < 0) {
-			dev_err(di->dev, "error reading flags\n");
-			return 0;
-		}
-		if (flags & BQ27000_FLAG_CHGS) {
-			dev_dbg(di->dev, "negative current!\n");
-			curr = -curr;
-		}
+	if (tval == 65535)
+		return -ENODATA;
+
+	return tval * 60;
+}
+
+static void bq27x00_update(struct bq27x00_device_info *di)
+{
+	struct bq27x00_reg_cache cache = {0, };
+	bool is_bq27500 = di->chip == BQ27500;
+
+	cache.flags = bq27x00_read(di, BQ27x00_REG_FLAGS, is_bq27500);
+	if (cache.flags >= 0) {
+		cache.capacity = bq27x00_battery_read_rsoc(di);
+		cache.temperature = bq27x00_read(di, BQ27x00_REG_TEMP, false);
+		cache.time_to_empty = bq27x00_battery_read_time(di, BQ27x00_REG_TTE);
+		cache.time_to_empty_avg = bq27x00_battery_read_time(di, BQ27x00_REG_TTECP);
+		cache.time_to_full = bq27x00_battery_read_time(di, BQ27x00_REG_TTF);
+		cache.charge_full = bq27x00_battery_read_lmd(di);
+		cache.charge_counter = bq27x00_battery_read_cyct(di);
+
+		if (!is_bq27500)
+			cache.current_now = bq27x00_read(di, BQ27x00_REG_AI, false);
+
+		/* We only have to read charge design full once */
+		if (di->charge_design_full <= 0)
+			di->charge_design_full = bq27x00_battery_read_ilmd(di);
+	}
+
+	/* Ignore current_now which is a snapshot of the current battery state
+	 * and is likely to be different even between two consecutive reads */
+	if (memcmp(&di->cache, &cache, sizeof(cache) - sizeof(int)) != 0) {
+		di->cache = cache;
+		power_supply_changed(&di->bat);
 	}
 
-	return curr * 1000;
+	di->last_update = jiffies;
+}
+
+static void bq27x00_battery_poll(struct work_struct *work)
+{
+	struct bq27x00_device_info *di =
+		container_of(work, struct bq27x00_device_info, work.work);
+
+	bq27x00_update(di);
+
+	if (poll_interval > 0) {
+		/* The timer does not have to be accurate. */
+		set_timer_slack(&di->work.timer, poll_interval * HZ / 4);
+		schedule_delayed_work(&di->work, poll_interval * HZ);
+	}
 }
 
+
 /*
- * Return the battery Relative State-of-Charge
+ * Return the battery temperature in tenths of degree Celsius
  * Or < 0 if something fails.
  */
-static int bq27x00_battery_rsoc(struct bq27x00_device_info *di)
+static int bq27x00_battery_temperature(struct bq27x00_device_info *di,
+	union power_supply_propval *val)
 {
-	int ret;
-	int rsoc = 0;
+	if (di->cache.temperature < 0)
+		return di->cache.temperature;
 
 	if (di->chip == BQ27500)
-		ret = bq27x00_read(BQ27500_REG_SOC, &rsoc, 0, di);
+		val->intval = di->cache.temperature - 2731;
 	else
-		ret = bq27x00_read(BQ27000_REG_RSOC, &rsoc, 1, di);
-	if (ret) {
-		dev_err(di->dev, "error reading relative State-of-Charge\n");
-		return ret;
+		val->intval = ((di->cache.temperature * 5) - 5463) / 2;
+
+	return 0;
+}
+
+/*
+ * Return the battery average current in µA
+ * Note that current can be negative signed as well
+ * Or 0 if something fails.
+ */
+static int bq27x00_battery_current(struct bq27x00_device_info *di,
+	union power_supply_propval *val)
+{
+	int curr;
+
+	if (di->chip == BQ27500)
+	    curr = bq27x00_read(di, BQ27x00_REG_AI, false);
+	else
+	    curr = di->cache.current_now;
+
+	if (curr < 0)
+		return curr;
+
+	if (di->chip == BQ27500) {
+		/* bq27500 returns signed value */
+		val->intval = (int)((s16)curr) * 1000;
+	} else {
+		if (di->cache.flags & BQ27000_FLAG_CHGS) {
+			dev_dbg(di->dev, "negative current!\n");
+			curr = -curr;
+		}
+
+		val->intval = curr * 3570 / BQ27000_RS;
 	}
 
-	return rsoc;
+	return 0;
 }
 
 static int bq27x00_battery_status(struct bq27x00_device_info *di,
-				  union power_supply_propval *val)
+	union power_supply_propval *val)
 {
-	int flags = 0;
 	int status;
-	int ret;
-
-	ret = bq27x00_read(BQ27x00_REG_FLAGS, &flags, 0, di);
-	if (ret < 0) {
-		dev_err(di->dev, "error reading flags\n");
-		return ret;
-	}
 
 	if (di->chip == BQ27500) {
-		if (flags & BQ27500_FLAG_FC)
+		if (di->cache.flags & BQ27500_FLAG_FC)
 			status = POWER_SUPPLY_STATUS_FULL;
-		else if (flags & BQ27500_FLAG_DSC)
+		else if (di->cache.flags & BQ27500_FLAG_DSC)
 			status = POWER_SUPPLY_STATUS_DISCHARGING;
 		else
 			status = POWER_SUPPLY_STATUS_CHARGING;
 	} else {
-		if (flags & BQ27000_FLAG_CHGS)
+		if (di->cache.flags & BQ27000_FLAG_FC)
+			status = POWER_SUPPLY_STATUS_FULL;
+		else if (di->cache.flags & BQ27000_FLAG_CHGS)
 			status = POWER_SUPPLY_STATUS_CHARGING;
+		else if (power_supply_am_i_supplied(&di->bat))
+			status = POWER_SUPPLY_STATUS_NOT_CHARGING;
 		else
 			status = POWER_SUPPLY_STATUS_DISCHARGING;
 	}
 
 	val->intval = status;
+
 	return 0;
 }
 
 /*
- * Read a time register.
- * Return < 0 if something fails.
+ * Return the battery Voltage in milivolts
+ * Or < 0 if something fails.
  */
-static int bq27x00_battery_time(struct bq27x00_device_info *di, int reg,
-				union power_supply_propval *val)
+static int bq27x00_battery_voltage(struct bq27x00_device_info *di,
+	union power_supply_propval *val)
 {
-	int tval = 0;
-	int ret;
+	int volt;
 
-	ret = bq27x00_read(reg, &tval, 0, di);
-	if (ret) {
-		dev_err(di->dev, "error reading register %02x\n", reg);
-		return ret;
+	volt = bq27x00_read(di, BQ27x00_REG_VOLT, false);
+	if (volt < 0)
+		return volt;
+
+	val->intval = volt * 1000;
+
+	return 0;
+}
+
+/*
+ * Return the battery Available energy in µWh
+ * Or < 0 if something fails.
+ */
+static int bq27x00_battery_energy(struct bq27x00_device_info *di,
+	union power_supply_propval *val)
+{
+	int ae;
+
+	ae = bq27x00_read(di, BQ27x00_REG_AE, false);
+	if (ae < 0) {
+		dev_err(di->dev, "error reading available energy\n");
+		return ae;
 	}
 
-	if (tval == 65535)
-		return -ENODATA;
+	if (di->chip == BQ27500)
+		ae *= 1000;
+	else
+		ae = ae * 29200 / BQ27000_RS;
+
+	val->intval = ae;
+
+	return 0;
+}
+
+
+static int bq27x00_simple_value(int value,
+	union power_supply_propval *val)
+{
+	if (value < 0)
+		return value;
+
+	val->intval = value;
 
-	val->intval = tval * 60;
 	return 0;
 }
 
@@ -249,33 +446,61 @@ static int bq27x00_battery_get_property(struct power_supply *psy,
 	int ret = 0;
 	struct bq27x00_device_info *di = to_bq27x00_device_info(psy);
 
+	mutex_lock(&di->lock);
+	if (time_is_before_jiffies(di->last_update + 5 * HZ)) {
+		cancel_delayed_work_sync(&di->work);
+		bq27x00_battery_poll(&di->work.work);
+	}
+	mutex_unlock(&di->lock);
+
+	if (psp != POWER_SUPPLY_PROP_PRESENT && di->cache.flags < 0)
+		return -ENODEV;
+
 	switch (psp) {
 	case POWER_SUPPLY_PROP_STATUS:
 		ret = bq27x00_battery_status(di, val);
 		break;
 	case POWER_SUPPLY_PROP_VOLTAGE_NOW:
+		ret = bq27x00_battery_voltage(di, val);
+		break;
 	case POWER_SUPPLY_PROP_PRESENT:
-		val->intval = bq27x00_battery_voltage(di);
-		if (psp == POWER_SUPPLY_PROP_PRESENT)
-			val->intval = val->intval <= 0 ? 0 : 1;
+		val->intval = di->cache.flags < 0 ? 0 : 1;
 		break;
 	case POWER_SUPPLY_PROP_CURRENT_NOW:
-		val->intval = bq27x00_battery_current(di);
+		ret = bq27x00_battery_current(di, val);
 		break;
 	case POWER_SUPPLY_PROP_CAPACITY:
-		val->intval = bq27x00_battery_rsoc(di);
+		ret = bq27x00_simple_value(di->cache.capacity, val);
 		break;
 	case POWER_SUPPLY_PROP_TEMP:
-		val->intval = bq27x00_battery_temperature(di);
+		ret = bq27x00_battery_temperature(di, val);
 		break;
 	case POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW:
-		ret = bq27x00_battery_time(di, BQ27x00_REG_TTE, val);
+		ret = bq27x00_simple_value(di->cache.time_to_empty, val);
 		break;
 	case POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG:
-		ret = bq27x00_battery_time(di, BQ27x00_REG_TTECP, val);
+		ret = bq27x00_simple_value(di->cache.time_to_empty_avg, val);
 		break;
 	case POWER_SUPPLY_PROP_TIME_TO_FULL_NOW:
-		ret = bq27x00_battery_time(di, BQ27x00_REG_TTF, val);
+		ret = bq27x00_simple_value(di->cache.time_to_full, val);
+		break;
+	case POWER_SUPPLY_PROP_TECHNOLOGY:
+		val->intval = POWER_SUPPLY_TECHNOLOGY_LION;
+		break;
+	case POWER_SUPPLY_PROP_CHARGE_NOW:
+		ret = bq27x00_simple_value(bq27x00_battery_read_nac(di), val);
+		break;
+	case POWER_SUPPLY_PROP_CHARGE_FULL:
+		ret = bq27x00_simple_value(di->cache.charge_full, val);
+		break;
+	case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN:
+		ret = bq27x00_simple_value(di->charge_design_full, val);
+		break;
+	case POWER_SUPPLY_PROP_CHARGE_COUNTER:
+		ret = bq27x00_simple_value(di->cache.charge_counter, val);
+		break;
+	case POWER_SUPPLY_PROP_ENERGY_NOW:
+		ret = bq27x00_battery_energy(di, val);
 		break;
 	default:
 		return -EINVAL;
@@ -284,56 +509,91 @@ static int bq27x00_battery_get_property(struct power_supply *psy,
 	return ret;
 }
 
-static void bq27x00_powersupply_init(struct bq27x00_device_info *di)
+static void bq27x00_external_power_changed(struct power_supply *psy)
 {
+	struct bq27x00_device_info *di = to_bq27x00_device_info(psy);
+
+	cancel_delayed_work_sync(&di->work);
+	schedule_delayed_work(&di->work, 0);
+}
+
+static int bq27x00_powersupply_init(struct bq27x00_device_info *di)
+{
+	int ret;
+
 	di->bat.type = POWER_SUPPLY_TYPE_BATTERY;
 	di->bat.properties = bq27x00_battery_props;
 	di->bat.num_properties = ARRAY_SIZE(bq27x00_battery_props);
 	di->bat.get_property = bq27x00_battery_get_property;
-	di->bat.external_power_changed = NULL;
+	di->bat.external_power_changed = bq27x00_external_power_changed;
+
+	INIT_DELAYED_WORK(&di->work, bq27x00_battery_poll);
+	mutex_init(&di->lock);
+
+	ret = power_supply_register(di->dev, &di->bat);
+	if (ret) {
+		dev_err(di->dev, "failed to register battery: %d\n", ret);
+		return ret;
+	}
+
+	dev_info(di->dev, "support ver. %s enabled\n", DRIVER_VERSION);
+
+	bq27x00_update(di);
+
+	return 0;
 }
 
-/*
- * i2c specific code
+static void bq27x00_powersupply_unregister(struct bq27x00_device_info *di)
+{
+	cancel_delayed_work_sync(&di->work);
+
+	power_supply_unregister(&di->bat);
+
+	mutex_destroy(&di->lock);
+}
+
+
+/* i2c specific code */
+#ifdef CONFIG_BATTERY_BQ27X00_I2C
+
+/* If the system has several batteries we need a different name for each
+ * of them...
  */
+static DEFINE_IDR(battery_id);
+static DEFINE_MUTEX(battery_mutex);
 
-static int bq27x00_read_i2c(u8 reg, int *rt_value, int b_single,
-			struct bq27x00_device_info *di)
+static int bq27x00_read_i2c(struct bq27x00_device_info *di, u8 reg, bool single)
 {
-	struct i2c_client *client = di->client;
-	struct i2c_msg msg[1];
+	struct i2c_client *client = to_i2c_client(di->dev);
+	struct i2c_msg msg[2];
 	unsigned char data[2];
-	int err;
+	int ret;
 
 	if (!client->adapter)
 		return -ENODEV;
 
-	msg->addr = client->addr;
-	msg->flags = 0;
-	msg->len = 1;
-	msg->buf = data;
-
-	data[0] = reg;
-	err = i2c_transfer(client->adapter, msg, 1);
+	msg[0].addr = client->addr;
+	msg[0].flags = 0;
+	msg[0].buf = &reg;
+	msg[0].len = sizeof(reg);
+	msg[1].addr = client->addr;
+	msg[1].flags = I2C_M_RD;
+	msg[1].buf = data;
+	if (single)
+		msg[1].len = 1;
+	else
+		msg[1].len = 2;
 
-	if (err >= 0) {
-		if (!b_single)
-			msg->len = 2;
-		else
-			msg->len = 1;
+	ret = i2c_transfer(client->adapter, msg, ARRAY_SIZE(msg));
+	if (ret < 0)
+		return ret;
 
-		msg->flags = I2C_M_RD;
-		err = i2c_transfer(client->adapter, msg, 1);
-		if (err >= 0) {
-			if (!b_single)
-				*rt_value = get_unaligned_le16(data);
-			else
-				*rt_value = data[0];
+	if (!single)
+		ret = get_unaligned_le16(data);
+	else
+		ret = data[0];
 
-			return 0;
-		}
-	}
-	return err;
+	return ret;
 }
 
 static int bq27x00_battery_probe(struct i2c_client *client,
@@ -341,7 +601,6 @@ static int bq27x00_battery_probe(struct i2c_client *client,
 {
 	char *name;
 	struct bq27x00_device_info *di;
-	struct bq27x00_access_methods *bus;
 	int num;
 	int retval = 0;
 
@@ -368,38 +627,20 @@ static int bq27x00_battery_probe(struct i2c_client *client,
 		retval = -ENOMEM;
 		goto batt_failed_2;
 	}
+
 	di->id = num;
+	di->dev = &client->dev;
 	di->chip = id->driver_data;
+	di->bat.name = name;
+	di->bus.read = &bq27x00_read_i2c;
 
-	bus = kzalloc(sizeof(*bus), GFP_KERNEL);
-	if (!bus) {
-		dev_err(&client->dev, "failed to allocate access method "
-					"data\n");
-		retval = -ENOMEM;
+	if (bq27x00_powersupply_init(di))
 		goto batt_failed_3;
-	}
 
 	i2c_set_clientdata(client, di);
-	di->dev = &client->dev;
-	di->bat.name = name;
-	bus->read = &bq27x00_read_i2c;
-	di->bus = bus;
-	di->client = client;
-
-	bq27x00_powersupply_init(di);
-
-	retval = power_supply_register(&client->dev, &di->bat);
-	if (retval) {
-		dev_err(&client->dev, "failed to register battery\n");
-		goto batt_failed_4;
-	}
-
-	dev_info(&client->dev, "support ver. %s enabled\n", DRIVER_VERSION);
 
 	return 0;
 
-batt_failed_4:
-	kfree(bus);
 batt_failed_3:
 	kfree(di);
 batt_failed_2:
@@ -416,9 +657,8 @@ static int bq27x00_battery_remove(struct i2c_client *client)
 {
 	struct bq27x00_device_info *di = i2c_get_clientdata(client);
 
-	power_supply_unregister(&di->bat);
+	bq27x00_powersupply_unregister(di);
 
-	kfree(di->bus);
 	kfree(di->bat.name);
 
 	mutex_lock(&battery_mutex);
@@ -430,15 +670,12 @@ static int bq27x00_battery_remove(struct i2c_client *client)
 	return 0;
 }
 
-/*
- * Module stuff
- */
-
 static const struct i2c_device_id bq27x00_id[] = {
 	{ "bq27200", BQ27000 },	/* bq27200 is same as bq27000, but with i2c */
 	{ "bq27500", BQ27500 },
 	{},
 };
+MODULE_DEVICE_TABLE(i2c, bq27x00_id);
 
 static struct i2c_driver bq27x00_battery_driver = {
 	.driver = {
@@ -449,13 +686,164 @@ static struct i2c_driver bq27x00_battery_driver = {
 	.id_table = bq27x00_id,
 };
 
+static inline int bq27x00_battery_i2c_init(void)
+{
+	int ret = i2c_add_driver(&bq27x00_battery_driver);
+	if (ret)
+		printk(KERN_ERR "Unable to register BQ27x00 i2c driver\n");
+
+	return ret;
+}
+
+static inline void bq27x00_battery_i2c_exit(void)
+{
+	i2c_del_driver(&bq27x00_battery_driver);
+}
+
+#else
+
+static inline int bq27x00_battery_i2c_init(void) { return 0; }
+static inline void bq27x00_battery_i2c_exit(void) {};
+
+#endif
+
+/* platform specific code */
+#ifdef CONFIG_BATTERY_BQ27X00_PLATFORM
+
+static int bq27000_read_platform(struct bq27x00_device_info *di, u8 reg,
+			bool single)
+{
+	struct device *dev = di->dev;
+	struct bq27000_platform_data *pdata = dev->platform_data;
+	unsigned int timeout = 3;
+	int upper, lower;
+	int temp;
+
+	if (!single) {
+		/* Make sure the value has not changed in between reading the
+		 * lower and the upper part */
+		upper = pdata->read(dev, reg + 1);
+		do {
+			temp = upper;
+			if (upper < 0)
+				return upper;
+
+			lower = pdata->read(dev, reg);
+			if (lower < 0)
+				return lower;
+
+			upper = pdata->read(dev, reg + 1);
+		} while (temp != upper && --timeout);
+
+		if (timeout == 0)
+			return -EIO;
+
+		return (upper << 8) | lower;
+	}
+
+	return pdata->read(dev, reg);
+}
+
+static int __devinit bq27000_battery_probe(struct platform_device *pdev)
+{
+	struct bq27x00_device_info *di;
+	struct bq27000_platform_data *pdata = pdev->dev.platform_data;
+	int ret;
+
+	if (!pdata) {
+		dev_err(&pdev->dev, "no platform_data supplied\n");
+		return -EINVAL;
+	}
+
+	if (!pdata->read) {
+		dev_err(&pdev->dev, "no hdq read callback supplied\n");
+		return -EINVAL;
+	}
+
+	di = kzalloc(sizeof(*di), GFP_KERNEL);
+	if (!di) {
+		dev_err(&pdev->dev, "failed to allocate device info data\n");
+		return -ENOMEM;
+	}
+
+	platform_set_drvdata(pdev, di);
+
+	di->dev = &pdev->dev;
+	di->chip = BQ27000;
+
+	di->bat.name = pdata->name ?: dev_name(&pdev->dev);
+	di->bus.read = &bq27000_read_platform;
+
+	ret = bq27x00_powersupply_init(di);
+	if (ret)
+		goto err_free;
+
+	return 0;
+
+err_free:
+	platform_set_drvdata(pdev, NULL);
+	kfree(di);
+
+	return ret;
+}
+
+static int __devexit bq27000_battery_remove(struct platform_device *pdev)
+{
+	struct bq27x00_device_info *di = platform_get_drvdata(pdev);
+
+	bq27x00_powersupply_unregister(di);
+
+	platform_set_drvdata(pdev, NULL);
+	kfree(di);
+
+	return 0;
+}
+
+static struct platform_driver bq27000_battery_driver = {
+	.probe	= bq27000_battery_probe,
+	.remove = __devexit_p(bq27000_battery_remove),
+	.driver = {
+		.name = "bq27000-battery",
+		.owner = THIS_MODULE,
+	},
+};
+
+static inline int bq27x00_battery_platform_init(void)
+{
+	int ret = platform_driver_register(&bq27000_battery_driver);
+	if (ret)
+		printk(KERN_ERR "Unable to register BQ27000 platform driver\n");
+
+	return ret;
+}
+
+static inline void bq27x00_battery_platform_exit(void)
+{
+	platform_driver_unregister(&bq27000_battery_driver);
+}
+
+#else
+
+static inline int bq27x00_battery_platform_init(void) { return 0; }
+static inline void bq27x00_battery_platform_exit(void) {};
+
+#endif
+
+/*
+ * Module stuff
+ */
+
 static int __init bq27x00_battery_init(void)
 {
 	int ret;
 
-	ret = i2c_add_driver(&bq27x00_battery_driver);
+	ret = bq27x00_battery_i2c_init();
 	if (ret)
-		printk(KERN_ERR "Unable to register BQ27x00 driver\n");
+		return ret;
+
+	ret = bq27x00_battery_platform_init();
+	if (ret)
+		bq27x00_battery_i2c_exit();
 
 	return ret;
 }
@@ -463,7 +851,8 @@ module_init(bq27x00_battery_init);
 
 static void __exit bq27x00_battery_exit(void)
 {
-	i2c_del_driver(&bq27x00_battery_driver);
+	bq27x00_battery_platform_exit();
+	bq27x00_battery_i2c_exit();
 }
 module_exit(bq27x00_battery_exit);
 
diff --git a/drivers/power/ds2782_battery.c b/drivers/power/ds2782_battery.c
index 6957e8af6449..4d2dc4fa2888 100644
--- a/drivers/power/ds2782_battery.c
+++ b/drivers/power/ds2782_battery.c
@@ -393,6 +393,7 @@ static const struct i2c_device_id ds278x_id[] = {
 	{"ds2786", DS2786},
 	{},
 };
+MODULE_DEVICE_TABLE(i2c, ds278x_id);
 
 static struct i2c_driver ds278x_battery_driver = {
 	.driver 	= {
diff --git a/drivers/power/power_supply_core.c b/drivers/power/power_supply_core.c
index 970f7335d3a7..329b46b2327d 100644
--- a/drivers/power/power_supply_core.c
+++ b/drivers/power/power_supply_core.c
@@ -171,6 +171,8 @@ int power_supply_register(struct device *parent, struct power_supply *psy)
 	dev_set_drvdata(dev, psy);
 	psy->dev = dev;
 
+	INIT_WORK(&psy->changed_work, power_supply_changed_work);
+
 	rc = kobject_set_name(&dev->kobj, "%s", psy->name);
 	if (rc)
 		goto kobject_set_name_failed;
@@ -179,8 +181,6 @@ int power_supply_register(struct device *parent, struct power_supply *psy)
 	if (rc)
 		goto device_add_failed;
 
-	INIT_WORK(&psy->changed_work, power_supply_changed_work);
-
 	rc = power_supply_create_triggers(psy);
 	if (rc)
 		goto create_triggers_failed;
diff --git a/drivers/power/power_supply_leds.c b/drivers/power/power_supply_leds.c
index 031a554837f7..da25eb94e5c6 100644
--- a/drivers/power/power_supply_leds.c
+++ b/drivers/power/power_supply_leds.c
@@ -21,6 +21,8 @@
 static void power_supply_update_bat_leds(struct power_supply *psy)
 {
 	union power_supply_propval status;
+	unsigned long delay_on = 0;
+	unsigned long delay_off = 0;
 
 	if (psy->get_property(psy, POWER_SUPPLY_PROP_STATUS, &status))
 		return;
@@ -32,16 +34,22 @@ static void power_supply_update_bat_leds(struct power_supply *psy)
 		led_trigger_event(psy->charging_full_trig, LED_FULL);
 		led_trigger_event(psy->charging_trig, LED_OFF);
 		led_trigger_event(psy->full_trig, LED_FULL);
+		led_trigger_event(psy->charging_blink_full_solid_trig,
+			LED_FULL);
 		break;
 	case POWER_SUPPLY_STATUS_CHARGING:
 		led_trigger_event(psy->charging_full_trig, LED_FULL);
 		led_trigger_event(psy->charging_trig, LED_FULL);
 		led_trigger_event(psy->full_trig, LED_OFF);
+		led_trigger_blink(psy->charging_blink_full_solid_trig,
+			&delay_on, &delay_off);
 		break;
 	default:
 		led_trigger_event(psy->charging_full_trig, LED_OFF);
 		led_trigger_event(psy->charging_trig, LED_OFF);
 		led_trigger_event(psy->full_trig, LED_OFF);
+		led_trigger_event(psy->charging_blink_full_solid_trig,
+			LED_OFF);
 		break;
 	}
 }
@@ -64,15 +72,24 @@ static int power_supply_create_bat_triggers(struct power_supply *psy)
 	if (!psy->full_trig_name)
 		goto full_failed;
 
+	psy->charging_blink_full_solid_trig_name = kasprintf(GFP_KERNEL,
+		"%s-charging-blink-full-solid", psy->name);
+	if (!psy->charging_blink_full_solid_trig_name)
+		goto charging_blink_full_solid_failed;
+
 	led_trigger_register_simple(psy->charging_full_trig_name,
 				    &psy->charging_full_trig);
 	led_trigger_register_simple(psy->charging_trig_name,
 				    &psy->charging_trig);
 	led_trigger_register_simple(psy->full_trig_name,
 				    &psy->full_trig);
+	led_trigger_register_simple(psy->charging_blink_full_solid_trig_name,
+				    &psy->charging_blink_full_solid_trig);
 
 	goto success;
 
+charging_blink_full_solid_failed:
+	kfree(psy->full_trig_name);
 full_failed:
 	kfree(psy->charging_trig_name);
 charging_failed:
@@ -88,6 +105,8 @@ static void power_supply_remove_bat_triggers(struct power_supply *psy)
 	led_trigger_unregister_simple(psy->charging_full_trig);
 	led_trigger_unregister_simple(psy->charging_trig);
 	led_trigger_unregister_simple(psy->full_trig);
+	led_trigger_unregister_simple(psy->charging_blink_full_solid_trig);
+	kfree(psy->charging_blink_full_solid_trig_name);
 	kfree(psy->full_trig_name);
 	kfree(psy->charging_trig_name);
 	kfree(psy->charging_full_trig_name);
diff --git a/drivers/power/power_supply_sysfs.c b/drivers/power/power_supply_sysfs.c
index cd1f90754a3a..605514afc29f 100644
--- a/drivers/power/power_supply_sysfs.c
+++ b/drivers/power/power_supply_sysfs.c
@@ -270,7 +270,7 @@ int power_supply_uevent(struct device *dev, struct kobj_uevent_env *env)
 		attr = &power_supply_attrs[psy->properties[j]];
 
 		ret = power_supply_show_property(dev, attr, prop_buf);
-		if (ret == -ENODEV) {
+		if (ret == -ENODEV || ret == -ENODATA) {
 			/* When a battery is absent, we expect -ENODEV. Don't abort;
 			   send the uevent with at least the the PRESENT=0 property */
 			ret = 0;
diff --git a/drivers/power/s3c_adc_battery.c b/drivers/power/s3c_adc_battery.c
index 4255f2358b13..d36c289aaef5 100644
--- a/drivers/power/s3c_adc_battery.c
+++ b/drivers/power/s3c_adc_battery.c
@@ -406,8 +406,8 @@ static int s3c_adc_bat_resume(struct platform_device *pdev)
 	return 0;
 }
 #else
-#define s3c_adc_battery_suspend NULL
-#define s3c_adc_battery_resume NULL
+#define s3c_adc_bat_suspend NULL
+#define s3c_adc_bat_resume NULL
 #endif
 
 static struct platform_driver s3c_adc_bat_driver = {
diff --git a/drivers/power/twl4030_charger.c b/drivers/power/twl4030_charger.c
index ff1f42398a2e..92c16e1677bd 100644
--- a/drivers/power/twl4030_charger.c
+++ b/drivers/power/twl4030_charger.c
@@ -71,8 +71,11 @@ struct twl4030_bci {
 	struct power_supply	usb;
 	struct otg_transceiver	*transceiver;
 	struct notifier_block	otg_nb;
+	struct work_struct	work;
 	int			irq_chg;
 	int			irq_bci;
+
+	unsigned long		event;
 };
 
 /*
@@ -258,14 +261,11 @@ static irqreturn_t twl4030_bci_interrupt(int irq, void *arg)
 	return IRQ_HANDLED;
 }
 
-static int twl4030_bci_usb_ncb(struct notifier_block *nb, unsigned long val,
-			       void *priv)
+static void twl4030_bci_usb_work(struct work_struct *data)
 {
-	struct twl4030_bci *bci = container_of(nb, struct twl4030_bci, otg_nb);
+	struct twl4030_bci *bci = container_of(data, struct twl4030_bci, work);
 
-	dev_dbg(bci->dev, "OTG notify %lu\n", val);
-
-	switch (val) {
+	switch (bci->event) {
 	case USB_EVENT_VBUS:
 	case USB_EVENT_CHARGER:
 		twl4030_charger_enable_usb(bci, true);
@@ -274,6 +274,17 @@ static int twl4030_bci_usb_ncb(struct notifier_block *nb, unsigned long val,
 		twl4030_charger_enable_usb(bci, false);
 		break;
 	}
+}
+
+static int twl4030_bci_usb_ncb(struct notifier_block *nb, unsigned long val,
+			       void *priv)
+{
+	struct twl4030_bci *bci = container_of(nb, struct twl4030_bci, otg_nb);
+
+	dev_dbg(bci->dev, "OTG notify %lu\n", val);
+
+	bci->event = val;
+	schedule_work(&bci->work);
 
 	return NOTIFY_OK;
 }
@@ -466,6 +477,8 @@ static int __init twl4030_bci_probe(struct platform_device *pdev)
 		goto fail_bci_irq;
 	}
 
+	INIT_WORK(&bci->work, twl4030_bci_usb_work);
+
 	bci->transceiver = otg_get_transceiver();
 	if (bci->transceiver != NULL) {
 		bci->otg_nb.notifier_call = twl4030_bci_usb_ncb;
diff --git a/drivers/power/z2_battery.c b/drivers/power/z2_battery.c
index e5ed52d71937..e5ced3a4c1ed 100644
--- a/drivers/power/z2_battery.c
+++ b/drivers/power/z2_battery.c
@@ -134,6 +134,8 @@ static int z2_batt_ps_init(struct z2_charger *charger, int props)
 	enum power_supply_property *prop;
 	struct z2_battery_info *info = charger->info;
 
+	if (info->charge_gpio >= 0)
+		props++;	/* POWER_SUPPLY_PROP_STATUS */
 	if (info->batt_tech >= 0)
 		props++;	/* POWER_SUPPLY_PROP_TECHNOLOGY */
 	if (info->batt_I2C_reg >= 0)
@@ -213,8 +215,8 @@ static int __devinit z2_batt_probe(struct i2c_client *client,
 		if (ret)
 			goto err2;
 
-		set_irq_type(gpio_to_irq(info->charge_gpio),
-				IRQ_TYPE_EDGE_BOTH);
+		irq_set_irq_type(gpio_to_irq(info->charge_gpio),
+				 IRQ_TYPE_EDGE_BOTH);
 		ret = request_irq(gpio_to_irq(info->charge_gpio),
 				z2_charge_switch_irq, IRQF_DISABLED,
 				"AC Detect", charger);
@@ -293,6 +295,7 @@ static const struct i2c_device_id z2_batt_id[] = {
 	{ "aer915", 0 },
 	{ }
 };
+MODULE_DEVICE_TABLE(i2c, z2_batt_id);
 
 static struct i2c_driver z2_batt_driver = {
 	.driver	= {
diff --git a/drivers/pps/Kconfig b/drivers/pps/Kconfig
index f0d3376b58ba..258ca596e1bc 100644
--- a/drivers/pps/Kconfig
+++ b/drivers/pps/Kconfig
@@ -35,7 +35,7 @@ config NTP_PPS
 	depends on PPS && !NO_HZ
 	help
 	  This option adds support for direct in-kernel time
-	  syncronization using an external PPS signal.
+	  synchronization using an external PPS signal.
 
 	  It doesn't work on tickless systems at the moment.
 
diff --git a/drivers/ps3/ps3-lpm.c b/drivers/ps3/ps3-lpm.c
index 8000985d0e8c..643697f71390 100644
--- a/drivers/ps3/ps3-lpm.c
+++ b/drivers/ps3/ps3-lpm.c
@@ -919,7 +919,7 @@ EXPORT_SYMBOL_GPL(ps3_disable_pm);
  * @offset: Offset in bytes from the start of the trace buffer.
  * @buf: Copy destination.
  * @count: Maximum count of bytes to copy.
- * @bytes_copied: Pointer to a variable that will recieve the number of
+ * @bytes_copied: Pointer to a variable that will receive the number of
  *  bytes copied to @buf.
  *
  * On error @buf will contain any successfully copied trace buffer data
@@ -974,7 +974,7 @@ EXPORT_SYMBOL_GPL(ps3_lpm_copy_tb);
  * @offset: Offset in bytes from the start of the trace buffer.
  * @buf: A __user copy destination.
  * @count: Maximum count of bytes to copy.
- * @bytes_copied: Pointer to a variable that will recieve the number of
+ * @bytes_copied: Pointer to a variable that will receive the number of
  *  bytes copied to @buf.
  *
  * On error @buf will contain any successfully copied trace buffer data
@@ -1074,7 +1074,7 @@ EXPORT_SYMBOL_GPL(ps3_disable_pm_interrupts);
 
 /**
  * ps3_lpm_open - Open the logical performance monitor device.
- * @tb_type: Specifies the type of trace buffer lv1 sould use for this lpm
+ * @tb_type: Specifies the type of trace buffer lv1 should use for this lpm
  *  instance, specified by one of enum ps3_lpm_tb_type.
  * @tb_cache: Optional user supplied buffer to use as the trace buffer cache.
  *  If NULL, the driver will allocate and manage an internal buffer.
diff --git a/drivers/ps3/ps3-sys-manager.c b/drivers/ps3/ps3-sys-manager.c
index d37c445f0eda..1b98367110c4 100644
--- a/drivers/ps3/ps3-sys-manager.c
+++ b/drivers/ps3/ps3-sys-manager.c
@@ -80,7 +80,7 @@ static void __maybe_unused _dump_sm_header(
  *
  * Currently all messages received from the system manager are either
  * (16 bytes header + 8 bytes payload = 24 bytes) or (16 bytes header
- * + 16 bytes payload = 32 bytes).  This knowlege is used to simplify
+ * + 16 bytes payload = 32 bytes).  This knowledge is used to simplify
  * the logic.
  */
 
diff --git a/drivers/rapidio/rio-scan.c b/drivers/rapidio/rio-scan.c
index 3a59d5f018d3..ee893581d4b7 100644
--- a/drivers/rapidio/rio-scan.c
+++ b/drivers/rapidio/rio-scan.c
@@ -295,7 +295,7 @@ static int __devinit rio_add_device(struct rio_dev *rdev)
 }
 
 /**
- * rio_enable_rx_tx_port - enable input reciever and output transmitter of
+ * rio_enable_rx_tx_port - enable input receiver and output transmitter of
  * given port
  * @port: Master port associated with the RIO network
  * @local: local=1 select local port otherwise a far device is reached
diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
index de75f67f4cc3..b9f29e0d4295 100644
--- a/drivers/regulator/Kconfig
+++ b/drivers/regulator/Kconfig
@@ -126,7 +126,7 @@ config REGULATOR_MAX8998
 	  and S5PC1XX chips to control VCC_CORE and VCC_USIM voltages.
 
 config REGULATOR_TWL4030
-	bool "TI TWL4030/TWL5030/TWL6030/TPS695x0 PMIC"
+	bool "TI TWL4030/TWL5030/TWL6030/TPS659x0 PMIC"
 	depends on TWL4030_CORE
 	help
 	  This driver supports the voltage regulators provided by
diff --git a/drivers/regulator/ab3100.c b/drivers/regulator/ab3100.c
index 2dec589a8908..b1d77946e9c6 100644
--- a/drivers/regulator/ab3100.c
+++ b/drivers/regulator/ab3100.c
@@ -206,29 +206,6 @@ static int ab3100_enable_regulator(struct regulator_dev *reg)
 		return err;
 	}
 
-	/* Per-regulator power on delay from spec */
-	switch (abreg->regreg) {
-	case AB3100_LDO_A: /* Fallthrough */
-	case AB3100_LDO_C: /* Fallthrough */
-	case AB3100_LDO_D: /* Fallthrough */
-	case AB3100_LDO_E: /* Fallthrough */
-	case AB3100_LDO_H: /* Fallthrough */
-	case AB3100_LDO_K:
-		udelay(200);
-		break;
-	case AB3100_LDO_F:
-		udelay(600);
-		break;
-	case AB3100_LDO_G:
-		udelay(400);
-		break;
-	case AB3100_BUCK:
-		mdelay(1);
-		break;
-	default:
-		break;
-	}
-
 	return 0;
 }
 
@@ -450,11 +427,37 @@ static int ab3100_get_voltage_regulator_external(struct regulator_dev *reg)
 	return abreg->plfdata->external_voltage;
 }
 
+static int ab3100_enable_time_regulator(struct regulator_dev *reg)
+{
+	struct ab3100_regulator *abreg = reg->reg_data;
+
+	/* Per-regulator power on delay from spec */
+	switch (abreg->regreg) {
+	case AB3100_LDO_A: /* Fallthrough */
+	case AB3100_LDO_C: /* Fallthrough */
+	case AB3100_LDO_D: /* Fallthrough */
+	case AB3100_LDO_E: /* Fallthrough */
+	case AB3100_LDO_H: /* Fallthrough */
+	case AB3100_LDO_K:
+		return 200;
+	case AB3100_LDO_F:
+		return 600;
+	case AB3100_LDO_G:
+		return 400;
+	case AB3100_BUCK:
+		return 1000;
+	default:
+		break;
+	}
+	return 0;
+}
+
 static struct regulator_ops regulator_ops_fixed = {
 	.enable      = ab3100_enable_regulator,
 	.disable     = ab3100_disable_regulator,
 	.is_enabled  = ab3100_is_enabled_regulator,
 	.get_voltage = ab3100_get_voltage_regulator,
+	.enable_time = ab3100_enable_time_regulator,
 };
 
 static struct regulator_ops regulator_ops_variable = {
@@ -464,6 +467,7 @@ static struct regulator_ops regulator_ops_variable = {
 	.get_voltage = ab3100_get_voltage_regulator,
 	.set_voltage = ab3100_set_voltage_regulator,
 	.list_voltage = ab3100_list_voltage_regulator,
+	.enable_time = ab3100_enable_time_regulator,
 };
 
 static struct regulator_ops regulator_ops_variable_sleepable = {
@@ -474,6 +478,7 @@ static struct regulator_ops regulator_ops_variable_sleepable = {
 	.set_voltage = ab3100_set_voltage_regulator,
 	.set_suspend_voltage = ab3100_set_suspend_voltage_regulator,
 	.list_voltage = ab3100_list_voltage_regulator,
+	.enable_time = ab3100_enable_time_regulator,
 };
 
 /*
diff --git a/drivers/regulator/ab8500.c b/drivers/regulator/ab8500.c
index d9a052c53aec..02f3c2333c83 100644
--- a/drivers/regulator/ab8500.c
+++ b/drivers/regulator/ab8500.c
@@ -9,7 +9,7 @@
  * AB8500 peripheral regulators
  *
  * AB8500 supports the following regulators:
- *   VAUX1/2/3, VINTCORE, VTVOUT, VAUDIO, VAMIC1/2, VDMIC, VANA
+ *   VAUX1/2/3, VINTCORE, VTVOUT, VUSB, VAUDIO, VAMIC1/2, VDMIC, VANA
  */
 #include <linux/init.h>
 #include <linux/kernel.h>
@@ -38,6 +38,7 @@
  * @voltage_mask: mask to control regulator voltage
  * @voltages: supported voltage table
  * @voltages_len: number of supported voltages for the regulator
+ * @delay: startup/set voltage delay in us
  */
 struct ab8500_regulator_info {
 	struct device		*dev;
@@ -55,6 +56,7 @@ struct ab8500_regulator_info {
 	u8 voltage_mask;
 	int const *voltages;
 	int voltages_len;
+	unsigned int delay;
 };
 
 /* voltage tables for the vauxn/vintcore supplies */
@@ -290,6 +292,29 @@ static int ab8500_regulator_set_voltage(struct regulator_dev *rdev,
 	return ret;
 }
 
+static int ab8500_regulator_enable_time(struct regulator_dev *rdev)
+{
+	struct ab8500_regulator_info *info = rdev_get_drvdata(rdev);
+
+	return info->delay;
+}
+
+static int ab8500_regulator_set_voltage_time_sel(struct regulator_dev *rdev,
+					     unsigned int old_sel,
+					     unsigned int new_sel)
+{
+	struct ab8500_regulator_info *info = rdev_get_drvdata(rdev);
+	int ret;
+
+	/* If the regulator isn't on, it won't take time here */
+	ret = ab8500_regulator_is_enabled(rdev);
+	if (ret < 0)
+		return ret;
+	if (!ret)
+		return 0;
+	return info->delay;
+}
+
 static struct regulator_ops ab8500_regulator_ops = {
 	.enable		= ab8500_regulator_enable,
 	.disable	= ab8500_regulator_disable,
@@ -297,6 +322,8 @@ static struct regulator_ops ab8500_regulator_ops = {
 	.get_voltage	= ab8500_regulator_get_voltage,
 	.set_voltage	= ab8500_regulator_set_voltage,
 	.list_voltage	= ab8500_list_voltage,
+	.enable_time	= ab8500_regulator_enable_time,
+	.set_voltage_time_sel = ab8500_regulator_set_voltage_time_sel,
 };
 
 static int ab8500_fixed_get_voltage(struct regulator_dev *rdev)
@@ -317,6 +344,8 @@ static struct regulator_ops ab8500_regulator_fixed_ops = {
 	.is_enabled	= ab8500_regulator_is_enabled,
 	.get_voltage	= ab8500_fixed_get_voltage,
 	.list_voltage	= ab8500_list_voltage,
+	.enable_time	= ab8500_regulator_enable_time,
+	.set_voltage_time_sel = ab8500_regulator_set_voltage_time_sel,
 };
 
 static struct ab8500_regulator_info
@@ -426,12 +455,28 @@ static struct ab8500_regulator_info
 			.owner		= THIS_MODULE,
 			.n_voltages	= 1,
 		},
+		.delay			= 10000,
 		.fixed_uV		= 2000000,
 		.update_bank		= 0x03,
 		.update_reg		= 0x80,
 		.update_mask		= 0x82,
 		.update_val_enable	= 0x02,
 	},
+	[AB8500_LDO_USB] = {
+		.desc = {
+			.name           = "LDO-USB",
+			.ops            = &ab8500_regulator_fixed_ops,
+			.type           = REGULATOR_VOLTAGE,
+			.id             = AB8500_LDO_USB,
+			.owner          = THIS_MODULE,
+			.n_voltages     = 1,
+		},
+		.fixed_uV               = 3300000,
+		.update_bank            = 0x03,
+		.update_reg             = 0x82,
+		.update_mask            = 0x03,
+		.update_val_enable      = 0x01,
+	},
 	[AB8500_LDO_AUDIO] = {
 		.desc = {
 			.name		= "LDO-AUDIO",
@@ -511,6 +556,186 @@ static struct ab8500_regulator_info
 
 };
 
+struct ab8500_reg_init {
+	u8 bank;
+	u8 addr;
+	u8 mask;
+};
+
+#define REG_INIT(_id, _bank, _addr, _mask)	\
+	[_id] = {				\
+		.bank = _bank,			\
+		.addr = _addr,			\
+		.mask = _mask,			\
+	}
+
+static struct ab8500_reg_init ab8500_reg_init[] = {
+	/*
+	 * 0x30, VanaRequestCtrl
+	 * 0x0C, VpllRequestCtrl
+	 * 0xc0, VextSupply1RequestCtrl
+	 */
+	REG_INIT(AB8500_REGUREQUESTCTRL2,	0x03, 0x04, 0xfc),
+	/*
+	 * 0x03, VextSupply2RequestCtrl
+	 * 0x0c, VextSupply3RequestCtrl
+	 * 0x30, Vaux1RequestCtrl
+	 * 0xc0, Vaux2RequestCtrl
+	 */
+	REG_INIT(AB8500_REGUREQUESTCTRL3,	0x03, 0x05, 0xff),
+	/*
+	 * 0x03, Vaux3RequestCtrl
+	 * 0x04, SwHPReq
+	 */
+	REG_INIT(AB8500_REGUREQUESTCTRL4,	0x03, 0x06, 0x07),
+	/*
+	 * 0x08, VanaSysClkReq1HPValid
+	 * 0x20, Vaux1SysClkReq1HPValid
+	 * 0x40, Vaux2SysClkReq1HPValid
+	 * 0x80, Vaux3SysClkReq1HPValid
+	 */
+	REG_INIT(AB8500_REGUSYSCLKREQ1HPVALID1,	0x03, 0x07, 0xe8),
+	/*
+	 * 0x10, VextSupply1SysClkReq1HPValid
+	 * 0x20, VextSupply2SysClkReq1HPValid
+	 * 0x40, VextSupply3SysClkReq1HPValid
+	 */
+	REG_INIT(AB8500_REGUSYSCLKREQ1HPVALID2,	0x03, 0x08, 0x70),
+	/*
+	 * 0x08, VanaHwHPReq1Valid
+	 * 0x20, Vaux1HwHPReq1Valid
+	 * 0x40, Vaux2HwHPReq1Valid
+	 * 0x80, Vaux3HwHPReq1Valid
+	 */
+	REG_INIT(AB8500_REGUHWHPREQ1VALID1,	0x03, 0x09, 0xe8),
+	/*
+	 * 0x01, VextSupply1HwHPReq1Valid
+	 * 0x02, VextSupply2HwHPReq1Valid
+	 * 0x04, VextSupply3HwHPReq1Valid
+	 */
+	REG_INIT(AB8500_REGUHWHPREQ1VALID2,	0x03, 0x0a, 0x07),
+	/*
+	 * 0x08, VanaHwHPReq2Valid
+	 * 0x20, Vaux1HwHPReq2Valid
+	 * 0x40, Vaux2HwHPReq2Valid
+	 * 0x80, Vaux3HwHPReq2Valid
+	 */
+	REG_INIT(AB8500_REGUHWHPREQ2VALID1,	0x03, 0x0b, 0xe8),
+	/*
+	 * 0x01, VextSupply1HwHPReq2Valid
+	 * 0x02, VextSupply2HwHPReq2Valid
+	 * 0x04, VextSupply3HwHPReq2Valid
+	 */
+	REG_INIT(AB8500_REGUHWHPREQ2VALID2,	0x03, 0x0c, 0x07),
+	/*
+	 * 0x20, VanaSwHPReqValid
+	 * 0x80, Vaux1SwHPReqValid
+	 */
+	REG_INIT(AB8500_REGUSWHPREQVALID1,	0x03, 0x0d, 0xa0),
+	/*
+	 * 0x01, Vaux2SwHPReqValid
+	 * 0x02, Vaux3SwHPReqValid
+	 * 0x04, VextSupply1SwHPReqValid
+	 * 0x08, VextSupply2SwHPReqValid
+	 * 0x10, VextSupply3SwHPReqValid
+	 */
+	REG_INIT(AB8500_REGUSWHPREQVALID2,	0x03, 0x0e, 0x1f),
+	/*
+	 * 0x02, SysClkReq2Valid1
+	 * ...
+	 * 0x80, SysClkReq8Valid1
+	 */
+	REG_INIT(AB8500_REGUSYSCLKREQVALID1,	0x03, 0x0f, 0xfe),
+	/*
+	 * 0x02, SysClkReq2Valid2
+	 * ...
+	 * 0x80, SysClkReq8Valid2
+	 */
+	REG_INIT(AB8500_REGUSYSCLKREQVALID2,	0x03, 0x10, 0xfe),
+	/*
+	 * 0x02, VTVoutEna
+	 * 0x04, Vintcore12Ena
+	 * 0x38, Vintcore12Sel
+	 * 0x40, Vintcore12LP
+	 * 0x80, VTVoutLP
+	 */
+	REG_INIT(AB8500_REGUMISC1,		0x03, 0x80, 0xfe),
+	/*
+	 * 0x02, VaudioEna
+	 * 0x04, VdmicEna
+	 * 0x08, Vamic1Ena
+	 * 0x10, Vamic2Ena
+	 */
+	REG_INIT(AB8500_VAUDIOSUPPLY,		0x03, 0x83, 0x1e),
+	/*
+	 * 0x01, Vamic1_dzout
+	 * 0x02, Vamic2_dzout
+	 */
+	REG_INIT(AB8500_REGUCTRL1VAMIC,		0x03, 0x84, 0x03),
+	/*
+	 * 0x0c, VanaRegu
+	 * 0x03, VpllRegu
+	 */
+	REG_INIT(AB8500_VPLLVANAREGU,		0x04, 0x06, 0x0f),
+	/*
+	 * 0x01, VrefDDREna
+	 * 0x02, VrefDDRSleepMode
+	 */
+	REG_INIT(AB8500_VREFDDR,		0x04, 0x07, 0x03),
+	/*
+	 * 0x03, VextSupply1Regu
+	 * 0x0c, VextSupply2Regu
+	 * 0x30, VextSupply3Regu
+	 * 0x40, ExtSupply2Bypass
+	 * 0x80, ExtSupply3Bypass
+	 */
+	REG_INIT(AB8500_EXTSUPPLYREGU,		0x04, 0x08, 0xff),
+	/*
+	 * 0x03, Vaux1Regu
+	 * 0x0c, Vaux2Regu
+	 */
+	REG_INIT(AB8500_VAUX12REGU,		0x04, 0x09, 0x0f),
+	/*
+	 * 0x03, Vaux3Regu
+	 */
+	REG_INIT(AB8500_VRF1VAUX3REGU,		0x04, 0x0a, 0x03),
+	/*
+	 * 0x3f, Vsmps1Sel1
+	 */
+	REG_INIT(AB8500_VSMPS1SEL1,		0x04, 0x13, 0x3f),
+	/*
+	 * 0x0f, Vaux1Sel
+	 */
+	REG_INIT(AB8500_VAUX1SEL,		0x04, 0x1f, 0x0f),
+	/*
+	 * 0x0f, Vaux2Sel
+	 */
+	REG_INIT(AB8500_VAUX2SEL,		0x04, 0x20, 0x0f),
+	/*
+	 * 0x07, Vaux3Sel
+	 */
+	REG_INIT(AB8500_VRF1VAUX3SEL,		0x04, 0x21, 0x07),
+	/*
+	 * 0x01, VextSupply12LP
+	 */
+	REG_INIT(AB8500_REGUCTRL2SPARE,		0x04, 0x22, 0x01),
+	/*
+	 * 0x04, Vaux1Disch
+	 * 0x08, Vaux2Disch
+	 * 0x10, Vaux3Disch
+	 * 0x20, Vintcore12Disch
+	 * 0x40, VTVoutDisch
+	 * 0x80, VaudioDisch
+	 */
+	REG_INIT(AB8500_REGUCTRLDISCH,		0x04, 0x43, 0xfc),
+	/*
+	 * 0x02, VanaDisch
+	 * 0x04, VdmicPullDownEna
+	 * 0x10, VdmicDisch
+	 */
+	REG_INIT(AB8500_REGUCTRLDISCH2,		0x04, 0x44, 0x16),
+};
+
 static __devinit int ab8500_regulator_probe(struct platform_device *pdev)
 {
 	struct ab8500 *ab8500 = dev_get_drvdata(pdev->dev.parent);
@@ -529,10 +754,51 @@ static __devinit int ab8500_regulator_probe(struct platform_device *pdev)
 
 	/* make sure the platform data has the correct size */
 	if (pdata->num_regulator != ARRAY_SIZE(ab8500_regulator_info)) {
-		dev_err(&pdev->dev, "platform configuration error\n");
+		dev_err(&pdev->dev, "Configuration error: size mismatch.\n");
 		return -EINVAL;
 	}
 
+	/* initialize registers */
+	for (i = 0; i < pdata->num_regulator_reg_init; i++) {
+		int id;
+		u8 value;
+
+		id = pdata->regulator_reg_init[i].id;
+		value = pdata->regulator_reg_init[i].value;
+
+		/* check for configuration errors */
+		if (id >= AB8500_NUM_REGULATOR_REGISTERS) {
+			dev_err(&pdev->dev,
+				"Configuration error: id outside range.\n");
+			return -EINVAL;
+		}
+		if (value & ~ab8500_reg_init[id].mask) {
+			dev_err(&pdev->dev,
+				"Configuration error: value outside mask.\n");
+			return -EINVAL;
+		}
+
+		/* initialize register */
+		err = abx500_mask_and_set_register_interruptible(&pdev->dev,
+			ab8500_reg_init[id].bank,
+			ab8500_reg_init[id].addr,
+			ab8500_reg_init[id].mask,
+			value);
+		if (err < 0) {
+			dev_err(&pdev->dev,
+				"Failed to initialize 0x%02x, 0x%02x.\n",
+				ab8500_reg_init[id].bank,
+				ab8500_reg_init[id].addr);
+			return err;
+		}
+		dev_vdbg(&pdev->dev,
+			"  init: 0x%02x, 0x%02x, 0x%02x, 0x%02x\n",
+			ab8500_reg_init[id].bank,
+			ab8500_reg_init[id].addr,
+			ab8500_reg_init[id].mask,
+			value);
+	}
+
 	/* register all regulators */
 	for (i = 0; i < ARRAY_SIZE(ab8500_regulator_info); i++) {
 		struct ab8500_regulator_info *info = NULL;
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 9fa20957847d..0fae51c4845a 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -1313,7 +1313,7 @@ static int _regulator_enable(struct regulator_dev *rdev)
 				return -EINVAL;
 
 			/* Query before enabling in case configuration
-			 * dependant.  */
+			 * dependent.  */
 			ret = _regulator_get_enable_time(rdev);
 			if (ret >= 0) {
 				delay = ret;
@@ -1629,6 +1629,7 @@ static int _regulator_do_set_voltage(struct regulator_dev *rdev,
 				     int min_uV, int max_uV)
 {
 	int ret;
+	int delay = 0;
 	unsigned int selector;
 
 	trace_regulator_set_voltage(rdev_get_name(rdev), min_uV, max_uV);
@@ -1662,6 +1663,22 @@ static int _regulator_do_set_voltage(struct regulator_dev *rdev,
 			}
 		}
 
+		/*
+		 * If we can't obtain the old selector there is not enough
+		 * info to call set_voltage_time_sel().
+		 */
+		if (rdev->desc->ops->set_voltage_time_sel &&
+		    rdev->desc->ops->get_voltage_sel) {
+			unsigned int old_selector = 0;
+
+			ret = rdev->desc->ops->get_voltage_sel(rdev);
+			if (ret < 0)
+				return ret;
+			old_selector = ret;
+			delay = rdev->desc->ops->set_voltage_time_sel(rdev,
+						old_selector, selector);
+		}
+
 		if (best_val != INT_MAX) {
 			ret = rdev->desc->ops->set_voltage_sel(rdev, selector);
 			selector = best_val;
@@ -1672,6 +1689,14 @@ static int _regulator_do_set_voltage(struct regulator_dev *rdev,
 		ret = -EINVAL;
 	}
 
+	/* Insert any necessary delays */
+	if (delay >= 1000) {
+		mdelay(delay / 1000);
+		udelay(delay % 1000);
+	} else if (delay) {
+		udelay(delay);
+	}
+
 	if (ret == 0)
 		_notifier_call_chain(rdev, REGULATOR_EVENT_VOLTAGE_CHANGE,
 				     NULL);
@@ -1740,6 +1765,51 @@ out:
 EXPORT_SYMBOL_GPL(regulator_set_voltage);
 
 /**
+ * regulator_set_voltage_time - get raise/fall time
+ * @regulator: regulator source
+ * @old_uV: starting voltage in microvolts
+ * @new_uV: target voltage in microvolts
+ *
+ * Provided with the starting and ending voltage, this function attempts to
+ * calculate the time in microseconds required to rise or fall to this new
+ * voltage.
+ */
+int regulator_set_voltage_time(struct regulator *regulator,
+			       int old_uV, int new_uV)
+{
+	struct regulator_dev	*rdev = regulator->rdev;
+	struct regulator_ops	*ops = rdev->desc->ops;
+	int old_sel = -1;
+	int new_sel = -1;
+	int voltage;
+	int i;
+
+	/* Currently requires operations to do this */
+	if (!ops->list_voltage || !ops->set_voltage_time_sel
+	    || !rdev->desc->n_voltages)
+		return -EINVAL;
+
+	for (i = 0; i < rdev->desc->n_voltages; i++) {
+		/* We only look for exact voltage matches here */
+		voltage = regulator_list_voltage(regulator, i);
+		if (voltage < 0)
+			return -EINVAL;
+		if (voltage == 0)
+			continue;
+		if (voltage == old_uV)
+			old_sel = i;
+		if (voltage == new_uV)
+			new_sel = i;
+	}
+
+	if (old_sel < 0 || new_sel < 0)
+		return -EINVAL;
+
+	return ops->set_voltage_time_sel(rdev, old_sel, new_sel);
+}
+EXPORT_SYMBOL_GPL(regulator_set_voltage_time);
+
+/**
  * regulator_sync_voltage - re-apply last regulator output voltage
  * @regulator: regulator source
  *
@@ -2565,8 +2635,11 @@ struct regulator_dev *regulator_register(struct regulator_desc *regulator_desc,
 			init_data->consumer_supplies[i].dev,
 			init_data->consumer_supplies[i].dev_name,
 			init_data->consumer_supplies[i].supply);
-		if (ret < 0)
+		if (ret < 0) {
+			dev_err(dev, "Failed to set supply %s\n",
+				init_data->consumer_supplies[i].supply);
 			goto unset_supplies;
+		}
 	}
 
 	list_add(&rdev->list, &regulator_list);
@@ -2653,6 +2726,47 @@ out:
 EXPORT_SYMBOL_GPL(regulator_suspend_prepare);
 
 /**
+ * regulator_suspend_finish - resume regulators from system wide suspend
+ *
+ * Turn on regulators that might be turned off by regulator_suspend_prepare
+ * and that should be turned on according to the regulators properties.
+ */
+int regulator_suspend_finish(void)
+{
+	struct regulator_dev *rdev;
+	int ret = 0, error;
+
+	mutex_lock(&regulator_list_mutex);
+	list_for_each_entry(rdev, &regulator_list, list) {
+		struct regulator_ops *ops = rdev->desc->ops;
+
+		mutex_lock(&rdev->mutex);
+		if ((rdev->use_count > 0  || rdev->constraints->always_on) &&
+				ops->enable) {
+			error = ops->enable(rdev);
+			if (error)
+				ret = error;
+		} else {
+			if (!has_full_constraints)
+				goto unlock;
+			if (!ops->disable)
+				goto unlock;
+			if (ops->is_enabled && !ops->is_enabled(rdev))
+				goto unlock;
+
+			error = ops->disable(rdev);
+			if (error)
+				ret = error;
+		}
+unlock:
+		mutex_unlock(&rdev->mutex);
+	}
+	mutex_unlock(&regulator_list_mutex);
+	return ret;
+}
+EXPORT_SYMBOL_GPL(regulator_suspend_finish);
+
+/**
  * regulator_has_full_constraints - the system has fully specified constraints
  *
  * Calling this function will cause the regulator API to disable all
diff --git a/drivers/regulator/max8952.c b/drivers/regulator/max8952.c
index a8f4ecfb0843..daff7fd0e95c 100644
--- a/drivers/regulator/max8952.c
+++ b/drivers/regulator/max8952.c
@@ -262,7 +262,7 @@ static int __devinit max8952_pmic_probe(struct i2c_client *client,
 
 	if (err) {
 		dev_warn(max8952->dev, "VID0/1 gpio invalid: "
-				"DVS not avilable.\n");
+				"DVS not available.\n");
 		max8952->vid0 = 0;
 		max8952->vid1 = 0;
 		/* Mark invalid */
diff --git a/drivers/regulator/max8997.c b/drivers/regulator/max8997.c
index 01ef7e9903bb..77e0cfb30b23 100644
--- a/drivers/regulator/max8997.c
+++ b/drivers/regulator/max8997.c
@@ -1185,6 +1185,7 @@ static const struct platform_device_id max8997_pmic_id[] = {
 	{ "max8997-pmic", 0},
 	{ },
 };
+MODULE_DEVICE_TABLE(platform, max8997_pmic_id);
 
 static struct platform_driver max8997_pmic_driver = {
 	.driver = {
diff --git a/drivers/regulator/max8998.c b/drivers/regulator/max8998.c
index 0ec49ca527a8..43410266f993 100644
--- a/drivers/regulator/max8998.c
+++ b/drivers/regulator/max8998.c
@@ -887,6 +887,7 @@ static const struct platform_device_id max8998_pmic_id[] = {
 	{ "lp3974-pmic", TYPE_LP3974 },
 	{ }
 };
+MODULE_DEVICE_TABLE(platform, max8998_pmic_id);
 
 static struct platform_driver max8998_pmic_driver = {
 	.driver = {
diff --git a/drivers/regulator/tps6524x-regulator.c b/drivers/regulator/tps6524x-regulator.c
index 176a6be5a8ce..9166aa0a9df7 100644
--- a/drivers/regulator/tps6524x-regulator.c
+++ b/drivers/regulator/tps6524x-regulator.c
@@ -596,7 +596,7 @@ static struct regulator_ops regulator_ops = {
 	.get_current_limit	= get_current_limit,
 };
 
-static int __devexit pmic_remove(struct spi_device *spi)
+static int pmic_remove(struct spi_device *spi)
 {
 	struct tps6524x *hw = spi_get_drvdata(spi);
 	int i;
diff --git a/drivers/regulator/wm831x-dcdc.c b/drivers/regulator/wm831x-dcdc.c
index 06df898842c0..e93453b1b978 100644
--- a/drivers/regulator/wm831x-dcdc.c
+++ b/drivers/regulator/wm831x-dcdc.c
@@ -565,9 +565,8 @@ static __devinit int wm831x_buckv_probe(struct platform_device *pdev)
 	}
 
 	irq = platform_get_irq_byname(pdev, "UV");
-	ret = wm831x_request_irq(wm831x, irq, wm831x_dcdc_uv_irq,
-				 IRQF_TRIGGER_RISING, dcdc->name,
-				 dcdc);
+	ret = request_threaded_irq(irq, NULL, wm831x_dcdc_uv_irq,
+				   IRQF_TRIGGER_RISING, dcdc->name, dcdc);
 	if (ret != 0) {
 		dev_err(&pdev->dev, "Failed to request UV IRQ %d: %d\n",
 			irq, ret);
@@ -575,9 +574,8 @@ static __devinit int wm831x_buckv_probe(struct platform_device *pdev)
 	}
 
 	irq = platform_get_irq_byname(pdev, "HC");
-	ret = wm831x_request_irq(wm831x, irq, wm831x_dcdc_oc_irq,
-				 IRQF_TRIGGER_RISING, dcdc->name,
-				 dcdc);
+	ret = request_threaded_irq(irq, NULL, wm831x_dcdc_oc_irq,
+				   IRQF_TRIGGER_RISING, dcdc->name, dcdc);
 	if (ret != 0) {
 		dev_err(&pdev->dev, "Failed to request HC IRQ %d: %d\n",
 			irq, ret);
@@ -589,7 +587,7 @@ static __devinit int wm831x_buckv_probe(struct platform_device *pdev)
 	return 0;
 
 err_uv:
-	wm831x_free_irq(wm831x, platform_get_irq_byname(pdev, "UV"), dcdc);
+	free_irq(platform_get_irq_byname(pdev, "UV"), dcdc);
 err_regulator:
 	regulator_unregister(dcdc->regulator);
 err:
@@ -606,8 +604,8 @@ static __devexit int wm831x_buckv_remove(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, NULL);
 
-	wm831x_free_irq(wm831x, platform_get_irq_byname(pdev, "HC"), dcdc);
-	wm831x_free_irq(wm831x, platform_get_irq_byname(pdev, "UV"), dcdc);
+	free_irq(platform_get_irq_byname(pdev, "HC"), dcdc);
+	free_irq(platform_get_irq_byname(pdev, "UV"), dcdc);
 	regulator_unregister(dcdc->regulator);
 	if (dcdc->dvs_gpio)
 		gpio_free(dcdc->dvs_gpio);
@@ -756,9 +754,8 @@ static __devinit int wm831x_buckp_probe(struct platform_device *pdev)
 	}
 
 	irq = platform_get_irq_byname(pdev, "UV");
-	ret = wm831x_request_irq(wm831x, irq, wm831x_dcdc_uv_irq,
-				 IRQF_TRIGGER_RISING, dcdc->name,
-				 dcdc);
+	ret = request_threaded_irq(irq, NULL, wm831x_dcdc_uv_irq,
+				   IRQF_TRIGGER_RISING,	dcdc->name, dcdc);
 	if (ret != 0) {
 		dev_err(&pdev->dev, "Failed to request UV IRQ %d: %d\n",
 			irq, ret);
@@ -783,7 +780,7 @@ static __devexit int wm831x_buckp_remove(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, NULL);
 
-	wm831x_free_irq(wm831x, platform_get_irq_byname(pdev, "UV"), dcdc);
+	free_irq(platform_get_irq_byname(pdev, "UV"), dcdc);
 	regulator_unregister(dcdc->regulator);
 	kfree(dcdc);
 
@@ -885,9 +882,9 @@ static __devinit int wm831x_boostp_probe(struct platform_device *pdev)
 	}
 
 	irq = platform_get_irq_byname(pdev, "UV");
-	ret = wm831x_request_irq(wm831x, irq, wm831x_dcdc_uv_irq,
-				 IRQF_TRIGGER_RISING, dcdc->name,
-				 dcdc);
+	ret = request_threaded_irq(irq, NULL, wm831x_dcdc_uv_irq,
+				   IRQF_TRIGGER_RISING, dcdc->name,
+				   dcdc);
 	if (ret != 0) {
 		dev_err(&pdev->dev, "Failed to request UV IRQ %d: %d\n",
 			irq, ret);
@@ -908,11 +905,10 @@ err:
 static __devexit int wm831x_boostp_remove(struct platform_device *pdev)
 {
 	struct wm831x_dcdc *dcdc = platform_get_drvdata(pdev);
-	struct wm831x *wm831x = dcdc->wm831x;
 
 	platform_set_drvdata(pdev, NULL);
 
-	wm831x_free_irq(wm831x, platform_get_irq_byname(pdev, "UV"), dcdc);
+	free_irq(platform_get_irq_byname(pdev, "UV"), dcdc);
 	regulator_unregister(dcdc->regulator);
 	kfree(dcdc);
 
diff --git a/drivers/regulator/wm831x-isink.c b/drivers/regulator/wm831x-isink.c
index 6c446cd6ad54..01f27c7f4236 100644
--- a/drivers/regulator/wm831x-isink.c
+++ b/drivers/regulator/wm831x-isink.c
@@ -198,9 +198,8 @@ static __devinit int wm831x_isink_probe(struct platform_device *pdev)
 	}
 
 	irq = platform_get_irq(pdev, 0);
-	ret = wm831x_request_irq(wm831x, irq, wm831x_isink_irq,
-				 IRQF_TRIGGER_RISING, isink->name,
-				 isink);
+	ret = request_threaded_irq(irq, NULL, wm831x_isink_irq,
+				   IRQF_TRIGGER_RISING, isink->name, isink);
 	if (ret != 0) {
 		dev_err(&pdev->dev, "Failed to request ISINK IRQ %d: %d\n",
 			irq, ret);
@@ -221,11 +220,10 @@ err:
 static __devexit int wm831x_isink_remove(struct platform_device *pdev)
 {
 	struct wm831x_isink *isink = platform_get_drvdata(pdev);
-	struct wm831x *wm831x = isink->wm831x;
 
 	platform_set_drvdata(pdev, NULL);
 
-	wm831x_free_irq(wm831x, platform_get_irq(pdev, 0), isink);
+	free_irq(platform_get_irq(pdev, 0), isink);
 
 	regulator_unregister(isink->regulator);
 	kfree(isink);
diff --git a/drivers/regulator/wm831x-ldo.c b/drivers/regulator/wm831x-ldo.c
index c94fc5b7cd5b..2220cf8defb1 100644
--- a/drivers/regulator/wm831x-ldo.c
+++ b/drivers/regulator/wm831x-ldo.c
@@ -354,9 +354,9 @@ static __devinit int wm831x_gp_ldo_probe(struct platform_device *pdev)
 	}
 
 	irq = platform_get_irq_byname(pdev, "UV");
-	ret = wm831x_request_irq(wm831x, irq, wm831x_ldo_uv_irq,
-				 IRQF_TRIGGER_RISING, ldo->name,
-				 ldo);
+	ret = request_threaded_irq(irq, NULL, wm831x_ldo_uv_irq,
+				   IRQF_TRIGGER_RISING, ldo->name,
+				   ldo);
 	if (ret != 0) {
 		dev_err(&pdev->dev, "Failed to request UV IRQ %d: %d\n",
 			irq, ret);
@@ -377,11 +377,10 @@ err:
 static __devexit int wm831x_gp_ldo_remove(struct platform_device *pdev)
 {
 	struct wm831x_ldo *ldo = platform_get_drvdata(pdev);
-	struct wm831x *wm831x = ldo->wm831x;
 
 	platform_set_drvdata(pdev, NULL);
 
-	wm831x_free_irq(wm831x, platform_get_irq_byname(pdev, "UV"), ldo);
+	free_irq(platform_get_irq_byname(pdev, "UV"), ldo);
 	regulator_unregister(ldo->regulator);
 	kfree(ldo);
 
@@ -619,9 +618,8 @@ static __devinit int wm831x_aldo_probe(struct platform_device *pdev)
 	}
 
 	irq = platform_get_irq_byname(pdev, "UV");
-	ret = wm831x_request_irq(wm831x, irq, wm831x_ldo_uv_irq,
-				 IRQF_TRIGGER_RISING, ldo->name,
-				 ldo);
+	ret = request_threaded_irq(irq, NULL, wm831x_ldo_uv_irq,
+				   IRQF_TRIGGER_RISING, ldo->name, ldo);
 	if (ret != 0) {
 		dev_err(&pdev->dev, "Failed to request UV IRQ %d: %d\n",
 			irq, ret);
@@ -642,9 +640,8 @@ err:
 static __devexit int wm831x_aldo_remove(struct platform_device *pdev)
 {
 	struct wm831x_ldo *ldo = platform_get_drvdata(pdev);
-	struct wm831x *wm831x = ldo->wm831x;
 
-	wm831x_free_irq(wm831x, platform_get_irq_byname(pdev, "UV"), ldo);
+	free_irq(platform_get_irq_byname(pdev, "UV"), ldo);
 	regulator_unregister(ldo->regulator);
 	kfree(ldo);
 
diff --git a/drivers/rtc/interface.c b/drivers/rtc/interface.c
index 8ec6b069a7f5..23719f0acbf6 100644
--- a/drivers/rtc/interface.c
+++ b/drivers/rtc/interface.c
@@ -454,7 +454,7 @@ EXPORT_SYMBOL_GPL(rtc_update_irq_enable);
  * @rtc: pointer to the rtc device
  *
  * This function is called when an AIE, UIE or PIE mode interrupt
- * has occured (or been emulated).
+ * has occurred (or been emulated).
  *
  * Triggers the registered irq_task function callback.
  */
diff --git a/drivers/rtc/rtc-at91rm9200.c b/drivers/rtc/rtc-at91rm9200.c
index 518a76ec71ca..e39b77a4609a 100644
--- a/drivers/rtc/rtc-at91rm9200.c
+++ b/drivers/rtc/rtc-at91rm9200.c
@@ -60,7 +60,7 @@ static void at91_rtc_decodetime(unsigned int timereg, unsigned int calreg,
 	/*
 	 * The Calendar Alarm register does not have a field for
 	 * the year - so these will return an invalid value.  When an
-	 * alarm is set, at91_alarm_year wille store the current year.
+	 * alarm is set, at91_alarm_year will store the current year.
 	 */
 	tm->tm_year  = bcd2bin(date & AT91_RTC_CENT) * 100;	/* century */
 	tm->tm_year += bcd2bin((date & AT91_RTC_YEAR) >> 8);	/* year */
diff --git a/drivers/rtc/rtc-bfin.c b/drivers/rtc/rtc-bfin.c
index ca9cff85ab8a..a0fc4cf42abf 100644
--- a/drivers/rtc/rtc-bfin.c
+++ b/drivers/rtc/rtc-bfin.c
@@ -20,9 +20,9 @@
  * write would be discarded and things quickly fall apart.
  *
  * To keep this delay from significantly degrading performance (we, in theory,
- * would have to sleep for up to 1 second everytime we wanted to write a
+ * would have to sleep for up to 1 second every time we wanted to write a
  * register), we only check the write pending status before we start to issue
- * a new write.  We bank on the idea that it doesnt matter when the sync
+ * a new write.  We bank on the idea that it doesn't matter when the sync
  * happens so long as we don't attempt another write before it does.  The only
  * time userspace would take this penalty is when they try and do multiple
  * operations right after another ... but in this case, they need to take the
diff --git a/drivers/rtc/rtc-lpc32xx.c b/drivers/rtc/rtc-lpc32xx.c
index ec8701ce99f9..ae16250c762f 100644
--- a/drivers/rtc/rtc-lpc32xx.c
+++ b/drivers/rtc/rtc-lpc32xx.c
@@ -240,7 +240,7 @@ static int __devinit lpc32xx_rtc_probe(struct platform_device *pdev)
 	spin_lock_init(&rtc->lock);
 
 	/*
-	 * The RTC is on a seperate power domain and can keep it's state
+	 * The RTC is on a separate power domain and can keep it's state
 	 * across a chip power cycle. If the RTC has never been previously
 	 * setup, then set it up now for the first time.
 	 */
diff --git a/drivers/rtc/rtc-mrst.c b/drivers/rtc/rtc-mrst.c
index b86bc328463b..b2f096871a97 100644
--- a/drivers/rtc/rtc-mrst.c
+++ b/drivers/rtc/rtc-mrst.c
@@ -319,7 +319,7 @@ static irqreturn_t mrst_rtc_irq(int irq, void *p)
 	return IRQ_NONE;
 }
 
-static int __init
+static int __devinit
 vrtc_mrst_do_probe(struct device *dev, struct resource *iomem, int rtc_irq)
 {
 	int retval = 0;
@@ -342,6 +342,8 @@ vrtc_mrst_do_probe(struct device *dev, struct resource *iomem, int rtc_irq)
 
 	mrst_rtc.irq = rtc_irq;
 	mrst_rtc.iomem = iomem;
+	mrst_rtc.dev = dev;
+	dev_set_drvdata(dev, &mrst_rtc);
 
 	mrst_rtc.rtc = rtc_device_register(driver_name, dev,
 				&mrst_rtc_ops, THIS_MODULE);
@@ -350,8 +352,6 @@ vrtc_mrst_do_probe(struct device *dev, struct resource *iomem, int rtc_irq)
 		goto cleanup0;
 	}
 
-	mrst_rtc.dev = dev;
-	dev_set_drvdata(dev, &mrst_rtc);
 	rename_region(iomem, dev_name(&mrst_rtc.rtc->dev));
 
 	spin_lock_irq(&rtc_lock);
@@ -376,9 +376,10 @@ vrtc_mrst_do_probe(struct device *dev, struct resource *iomem, int rtc_irq)
 	return 0;
 
 cleanup1:
-	mrst_rtc.dev = NULL;
 	rtc_device_unregister(mrst_rtc.rtc);
 cleanup0:
+	dev_set_drvdata(dev, NULL);
+	mrst_rtc.dev = NULL;
 	release_region(iomem->start, iomem->end + 1 - iomem->start);
 	dev_err(dev, "rtc-mrst: unable to initialise\n");
 	return retval;
@@ -391,7 +392,7 @@ static void rtc_mrst_do_shutdown(void)
 	spin_unlock_irq(&rtc_lock);
 }
 
-static void __exit rtc_mrst_do_remove(struct device *dev)
+static void __devexit rtc_mrst_do_remove(struct device *dev)
 {
 	struct mrst_rtc	*mrst = dev_get_drvdata(dev);
 	struct resource *iomem;
@@ -500,14 +501,14 @@ static inline int mrst_poweroff(struct device *dev)
 
 #endif
 
-static int __init vrtc_mrst_platform_probe(struct platform_device *pdev)
+static int __devinit vrtc_mrst_platform_probe(struct platform_device *pdev)
 {
 	return vrtc_mrst_do_probe(&pdev->dev,
 			platform_get_resource(pdev, IORESOURCE_MEM, 0),
 			platform_get_irq(pdev, 0));
 }
 
-static int __exit vrtc_mrst_platform_remove(struct platform_device *pdev)
+static int __devexit vrtc_mrst_platform_remove(struct platform_device *pdev)
 {
 	rtc_mrst_do_remove(&pdev->dev);
 	return 0;
@@ -525,7 +526,7 @@ MODULE_ALIAS("platform:vrtc_mrst");
 
 static struct platform_driver vrtc_mrst_platform_driver = {
 	.probe		= vrtc_mrst_platform_probe,
-	.remove		= __exit_p(vrtc_mrst_platform_remove),
+	.remove		= __devexit_p(vrtc_mrst_platform_remove),
 	.shutdown	= vrtc_mrst_platform_shutdown,
 	.driver = {
 		.name		= (char *) driver_name,
diff --git a/drivers/rtc/rtc-sh.c b/drivers/rtc/rtc-sh.c
index e55dc1ac83ab..6ac55fd48413 100644
--- a/drivers/rtc/rtc-sh.c
+++ b/drivers/rtc/rtc-sh.c
@@ -782,11 +782,11 @@ static void sh_rtc_set_irq_wake(struct device *dev, int enabled)
 	struct platform_device *pdev = to_platform_device(dev);
 	struct sh_rtc *rtc = platform_get_drvdata(pdev);
 
-	set_irq_wake(rtc->periodic_irq, enabled);
+	irq_set_irq_wake(rtc->periodic_irq, enabled);
 
 	if (rtc->carry_irq > 0) {
-		set_irq_wake(rtc->carry_irq, enabled);
-		set_irq_wake(rtc->alarm_irq, enabled);
+		irq_set_irq_wake(rtc->carry_irq, enabled);
+		irq_set_irq_wake(rtc->alarm_irq, enabled);
 	}
 }
 
diff --git a/drivers/rtc/rtc-x1205.c b/drivers/rtc/rtc-x1205.c
index 9aae49139a0a..b00aad2620d4 100644
--- a/drivers/rtc/rtc-x1205.c
+++ b/drivers/rtc/rtc-x1205.c
@@ -573,7 +573,7 @@ static int x1205_probe(struct i2c_client *client,
 
 	i2c_set_clientdata(client, rtc);
 
-	/* Check for power failures and eventualy enable the osc */
+	/* Check for power failures and eventually enable the osc */
 	if ((err = x1205_get_status(client, &sr)) == 0) {
 		if (sr & X1205_SR_RTCF) {
 			dev_err(&client->dev,
diff --git a/drivers/s390/block/dasd_3990_erp.c b/drivers/s390/block/dasd_3990_erp.c
index 1654a24817be..87a0cf160fe5 100644
--- a/drivers/s390/block/dasd_3990_erp.c
+++ b/drivers/s390/block/dasd_3990_erp.c
@@ -2207,7 +2207,7 @@ dasd_3990_erp_inspect_32(struct dasd_ccw_req * erp, char *sense)
  * DASD_3990_ERP_CONTROL_CHECK
  *
  * DESCRIPTION
- *   Does a generic inspection if a control check occured and sets up
+ *   Does a generic inspection if a control check occurred and sets up
  *   the related error recovery procedure
  *
  * PARAMETER
@@ -2250,7 +2250,7 @@ dasd_3990_erp_inspect(struct dasd_ccw_req *erp)
 	struct dasd_ccw_req *erp_new = NULL;
 	char *sense;
 
-	/* if this problem occured on an alias retry on base */
+	/* if this problem occurred on an alias retry on base */
 	erp_new = dasd_3990_erp_inspect_alias(erp);
 	if (erp_new)
 		return erp_new;
@@ -2282,7 +2282,7 @@ dasd_3990_erp_inspect(struct dasd_ccw_req *erp)
  * DASD_3990_ERP_ADD_ERP
  *
  * DESCRIPTION
- *   This funtion adds an additional request block (ERP) to the head of
+ *   This function adds an additional request block (ERP) to the head of
  *   the given cqr (or erp).
  *   For a command mode cqr the erp is initialized as an default erp
  *   (retry TIC).
diff --git a/drivers/s390/block/dasd_devmap.c b/drivers/s390/block/dasd_devmap.c
index cb6a67bc89ff..42e1bf35f689 100644
--- a/drivers/s390/block/dasd_devmap.c
+++ b/drivers/s390/block/dasd_devmap.c
@@ -302,7 +302,7 @@ dasd_parse_keyword( char *parsestring ) {
 /*
  * Try to interprete the first element on the comma separated parse string
  * as a device number or a range of devices. If the interpretation is
- * successfull, create the matching dasd_devmap entries and return a pointer
+ * successful, create the matching dasd_devmap entries and return a pointer
  * to the residual string.
  * If interpretation fails or in case of an error, return an error code.
  */
diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c
index 379d8592bc6e..db8005d9f2fd 100644
--- a/drivers/s390/block/dasd_eckd.c
+++ b/drivers/s390/block/dasd_eckd.c
@@ -2858,7 +2858,7 @@ static struct dasd_ccw_req *dasd_raw_build_cp(struct dasd_device *startdev,
 	/*
 	 * struct PFX_eckd_data has up to 2 byte as extended parameter
 	 * this is needed for write full track and has to be mentioned
-	 * seperately
+	 * separately
 	 * add 8 instead of 2 to keep 8 byte boundary
 	 */
 	pfx_datasize = sizeof(struct PFX_eckd_data) + 8;
@@ -3982,8 +3982,10 @@ out_err:
 }
 
 static struct ccw_driver dasd_eckd_driver = {
-	.name	     = "dasd-eckd",
-	.owner	     = THIS_MODULE,
+	.driver = {
+		.name	= "dasd-eckd",
+		.owner	= THIS_MODULE,
+	},
 	.ids	     = dasd_eckd_ids,
 	.probe	     = dasd_eckd_probe,
 	.remove      = dasd_generic_remove,
diff --git a/drivers/s390/block/dasd_fba.c b/drivers/s390/block/dasd_fba.c
index be89b3a893da..4b71b1164868 100644
--- a/drivers/s390/block/dasd_fba.c
+++ b/drivers/s390/block/dasd_fba.c
@@ -65,8 +65,10 @@ dasd_fba_set_online(struct ccw_device *cdev)
 }
 
 static struct ccw_driver dasd_fba_driver = {
-	.name        = "dasd-fba",
-	.owner       = THIS_MODULE,
+	.driver = {
+		.name	= "dasd-fba",
+		.owner	= THIS_MODULE,
+	},
 	.ids         = dasd_fba_ids,
 	.probe       = dasd_fba_probe,
 	.remove      = dasd_generic_remove,
diff --git a/drivers/s390/char/con3215.c b/drivers/s390/char/con3215.c
index 3fb4335d491d..694464c65fcd 100644
--- a/drivers/s390/char/con3215.c
+++ b/drivers/s390/char/con3215.c
@@ -764,8 +764,10 @@ static struct ccw_device_id raw3215_id[] = {
 };
 
 static struct ccw_driver raw3215_ccw_driver = {
-	.name		= "3215",
-	.owner		= THIS_MODULE,
+	.driver = {
+		.name	= "3215",
+		.owner	= THIS_MODULE,
+	},
 	.ids		= raw3215_id,
 	.probe		= &raw3215_probe,
 	.remove		= &raw3215_remove,
diff --git a/drivers/s390/char/raw3270.c b/drivers/s390/char/raw3270.c
index 96ba2fd1c8ad..e21a5c39ef20 100644
--- a/drivers/s390/char/raw3270.c
+++ b/drivers/s390/char/raw3270.c
@@ -604,7 +604,7 @@ __raw3270_size_device(struct raw3270 *rp)
 	/*
 	 * To determine the size of the 3270 device we need to do:
 	 * 1) send a 'read partition' data stream to the device
-	 * 2) wait for the attn interrupt that preceeds the query reply
+	 * 2) wait for the attn interrupt that precedes the query reply
 	 * 3) do a read modified to get the query reply
 	 * To make things worse we have to cope with intervention
 	 * required (3270 device switched to 'stand-by') and command
@@ -1388,8 +1388,10 @@ static struct ccw_device_id raw3270_id[] = {
 };
 
 static struct ccw_driver raw3270_ccw_driver = {
-	.name		= "3270",
-	.owner		= THIS_MODULE,
+	.driver = {
+		.name	= "3270",
+		.owner	= THIS_MODULE,
+	},
 	.ids		= raw3270_id,
 	.probe		= &raw3270_probe,
 	.remove		= &raw3270_remove,
diff --git a/drivers/s390/char/tape_34xx.c b/drivers/s390/char/tape_34xx.c
index c26511171ffe..9eff2df70ddb 100644
--- a/drivers/s390/char/tape_34xx.c
+++ b/drivers/s390/char/tape_34xx.c
@@ -1320,8 +1320,10 @@ tape_34xx_online(struct ccw_device *cdev)
 }
 
 static struct ccw_driver tape_34xx_driver = {
-	.name = "tape_34xx",
-	.owner = THIS_MODULE,
+	.driver = {
+		.name = "tape_34xx",
+		.owner = THIS_MODULE,
+	},
 	.ids = tape_34xx_ids,
 	.probe = tape_generic_probe,
 	.remove = tape_generic_remove,
diff --git a/drivers/s390/char/tape_3590.c b/drivers/s390/char/tape_3590.c
index de2e99e0a71b..b98dcbd16711 100644
--- a/drivers/s390/char/tape_3590.c
+++ b/drivers/s390/char/tape_3590.c
@@ -1761,8 +1761,10 @@ tape_3590_online(struct ccw_device *cdev)
 }
 
 static struct ccw_driver tape_3590_driver = {
-	.name = "tape_3590",
-	.owner = THIS_MODULE,
+	.driver = {
+		.name = "tape_3590",
+		.owner = THIS_MODULE,
+	},
 	.ids = tape_3590_ids,
 	.probe = tape_generic_probe,
 	.remove = tape_generic_remove,
diff --git a/drivers/s390/char/tape_char.c b/drivers/s390/char/tape_char.c
index e090a307fdee..87cd0ab242de 100644
--- a/drivers/s390/char/tape_char.c
+++ b/drivers/s390/char/tape_char.c
@@ -139,7 +139,7 @@ tapechar_read(struct file *filp, char __user *data, size_t count, loff_t *ppos)
 	/*
 	 * If the tape isn't terminated yet, do it now. And since we then
 	 * are at the end of the tape there wouldn't be anything to read
-	 * anyways. So we return immediatly.
+	 * anyways. So we return immediately.
 	 */
 	if(device->required_tapemarks) {
 		return tape_std_terminate_write(device);
diff --git a/drivers/s390/char/tty3270.c b/drivers/s390/char/tty3270.c
index d33554df2b06..2db1482b406e 100644
--- a/drivers/s390/char/tty3270.c
+++ b/drivers/s390/char/tty3270.c
@@ -328,7 +328,7 @@ tty3270_write_callback(struct raw3270_request *rq, void *data)
 
 	tp = (struct tty3270 *) rq->view;
 	if (rq->rc != 0) {
-		/* Write wasn't successfull. Refresh all. */
+		/* Write wasn't successful. Refresh all. */
 		tp->update_flags = TTY_UPDATE_ALL;
 		tty3270_set_timer(tp, 1);
 	}
diff --git a/drivers/s390/char/vmur.c b/drivers/s390/char/vmur.c
index caef1757341d..f6b00c3df425 100644
--- a/drivers/s390/char/vmur.c
+++ b/drivers/s390/char/vmur.c
@@ -64,8 +64,10 @@ static int ur_set_offline(struct ccw_device *cdev);
 static int ur_pm_suspend(struct ccw_device *cdev);
 
 static struct ccw_driver ur_driver = {
-	.name		= "vmur",
-	.owner		= THIS_MODULE,
+	.driver = {
+		.name	= "vmur",
+		.owner	= THIS_MODULE,
+	},
 	.ids		= ur_ids,
 	.probe		= ur_probe,
 	.remove		= ur_remove,
diff --git a/drivers/s390/cio/ccwgroup.c b/drivers/s390/cio/ccwgroup.c
index 2864581d8ecb..5c567414c4bb 100644
--- a/drivers/s390/cio/ccwgroup.c
+++ b/drivers/s390/cio/ccwgroup.c
@@ -428,7 +428,7 @@ ccwgroup_online_store (struct device *dev, struct device_attribute *attr, const
 	gdev = to_ccwgroupdev(dev);
 	gdrv = to_ccwgroupdrv(dev->driver);
 
-	if (!try_module_get(gdrv->owner))
+	if (!try_module_get(gdrv->driver.owner))
 		return -EINVAL;
 
 	ret = strict_strtoul(buf, 0, &value);
@@ -442,7 +442,7 @@ ccwgroup_online_store (struct device *dev, struct device_attribute *attr, const
 	else
 		ret = -EINVAL;
 out:
-	module_put(gdrv->owner);
+	module_put(gdrv->driver.owner);
 	return (ret == 0) ? count : ret;
 }
 
@@ -616,8 +616,6 @@ int ccwgroup_driver_register(struct ccwgroup_driver *cdriver)
 {
 	/* register our new driver with the core */
 	cdriver->driver.bus = &ccwgroup_bus_type;
-	cdriver->driver.name = cdriver->name;
-	cdriver->driver.owner = cdriver->owner;
 
 	return driver_register(&cdriver->driver);
 }
diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c
index e50b12163afe..df14c51f6532 100644
--- a/drivers/s390/cio/device.c
+++ b/drivers/s390/cio/device.c
@@ -127,7 +127,7 @@ static int ccw_uevent(struct device *dev, struct kobj_uevent_env *env)
 	return ret;
 }
 
-struct bus_type ccw_bus_type;
+static struct bus_type ccw_bus_type;
 
 static void io_subchannel_irq(struct subchannel *);
 static int io_subchannel_probe(struct subchannel *);
@@ -547,7 +547,7 @@ static ssize_t online_store (struct device *dev, struct device_attribute *attr,
 	if (atomic_cmpxchg(&cdev->private->onoff, 0, 1) != 0)
 		return -EAGAIN;
 
-	if (cdev->drv && !try_module_get(cdev->drv->owner)) {
+	if (cdev->drv && !try_module_get(cdev->drv->driver.owner)) {
 		atomic_set(&cdev->private->onoff, 0);
 		return -EINVAL;
 	}
@@ -573,7 +573,7 @@ static ssize_t online_store (struct device *dev, struct device_attribute *attr,
 	}
 out:
 	if (cdev->drv)
-		module_put(cdev->drv->owner);
+		module_put(cdev->drv->driver.owner);
 	atomic_set(&cdev->private->onoff, 0);
 	return (ret < 0) ? ret : count;
 }
@@ -1970,7 +1970,7 @@ static const struct dev_pm_ops ccw_pm_ops = {
 	.restore = ccw_device_pm_restore,
 };
 
-struct bus_type ccw_bus_type = {
+static struct bus_type ccw_bus_type = {
 	.name   = "ccw",
 	.match  = ccw_bus_match,
 	.uevent = ccw_uevent,
@@ -1993,8 +1993,6 @@ int ccw_driver_register(struct ccw_driver *cdriver)
 	struct device_driver *drv = &cdriver->driver;
 
 	drv->bus = &ccw_bus_type;
-	drv->name = cdriver->name;
-	drv->owner = cdriver->owner;
 
 	return driver_register(drv);
 }
@@ -2112,5 +2110,4 @@ EXPORT_SYMBOL(ccw_device_set_offline);
 EXPORT_SYMBOL(ccw_driver_register);
 EXPORT_SYMBOL(ccw_driver_unregister);
 EXPORT_SYMBOL(get_ccwdev_by_busid);
-EXPORT_SYMBOL(ccw_bus_type);
 EXPORT_SYMBOL_GPL(ccw_device_get_subchannel_id);
diff --git a/drivers/s390/cio/device.h b/drivers/s390/cio/device.h
index 379de2d1ec49..7e297c7bb5ff 100644
--- a/drivers/s390/cio/device.h
+++ b/drivers/s390/cio/device.h
@@ -133,7 +133,6 @@ void ccw_device_set_notoper(struct ccw_device *cdev);
 /* qdio needs this. */
 void ccw_device_set_timeout(struct ccw_device *, int);
 extern struct subchannel_id ccw_device_get_subchannel_id(struct ccw_device *);
-extern struct bus_type ccw_bus_type;
 
 /* Channel measurement facility related */
 void retry_set_schib(struct ccw_device *cdev);
diff --git a/drivers/s390/cio/device_fsm.c b/drivers/s390/cio/device_fsm.c
index a845695ac314..6084103672b5 100644
--- a/drivers/s390/cio/device_fsm.c
+++ b/drivers/s390/cio/device_fsm.c
@@ -318,7 +318,7 @@ ccw_device_sense_id_done(struct ccw_device *cdev, int err)
 
 /**
   * ccw_device_notify() - inform the device's driver about an event
-  * @cdev: device for which an event occured
+  * @cdev: device for which an event occurred
   * @event: event that occurred
   *
   * Returns:
@@ -688,7 +688,7 @@ ccw_device_online_verify(struct ccw_device *cdev, enum dev_event dev_event)
 	    (scsw_stctl(&cdev->private->irb.scsw) & SCSW_STCTL_STATUS_PEND)) {
 		/*
 		 * No final status yet or final status not yet delivered
-		 * to the device driver. Can't do path verfication now,
+		 * to the device driver. Can't do path verification now,
 		 * delay until final status was delivered.
 		 */
 		cdev->private->flags.doverify = 1;
diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c
index 5640c89cd9de..479c665e9e7c 100644
--- a/drivers/s390/cio/qdio_main.c
+++ b/drivers/s390/cio/qdio_main.c
@@ -1508,7 +1508,8 @@ int do_QDIO(struct ccw_device *cdev, unsigned int callflags,
 
 	if (irq_ptr->state != QDIO_IRQ_STATE_ACTIVE)
 		return -EBUSY;
-
+	if (!count)
+		return 0;
 	if (callflags & QDIO_FLAG_SYNC_INPUT)
 		return handle_inbound(irq_ptr->input_qs[q_nr],
 				      callflags, bufnr, count);
diff --git a/drivers/s390/crypto/zcrypt_api.h b/drivers/s390/crypto/zcrypt_api.h
index 88ebd114735b..9688f3985b07 100644
--- a/drivers/s390/crypto/zcrypt_api.h
+++ b/drivers/s390/crypto/zcrypt_api.h
@@ -76,7 +76,7 @@ struct ica_z90_status {
 
 /**
  * Large random numbers are pulled in 4096 byte chunks from the crypto cards
- * and stored in a page. Be carefull when increasing this buffer due to size
+ * and stored in a page. Be careful when increasing this buffer due to size
  * limitations for AP requests.
  */
 #define ZCRYPT_RNG_BUFFER_SIZE	4096
diff --git a/drivers/s390/net/claw.c b/drivers/s390/net/claw.c
index ce3a5c13ce0b..da8aa75bb20b 100644
--- a/drivers/s390/net/claw.c
+++ b/drivers/s390/net/claw.c
@@ -264,8 +264,10 @@ static struct device *claw_root_dev;
 /* ccwgroup table  */
 
 static struct ccwgroup_driver claw_group_driver = {
-        .owner       = THIS_MODULE,
-        .name        = "claw",
+	.driver = {
+		.owner	= THIS_MODULE,
+		.name	= "claw",
+	},
         .max_slaves  = 2,
         .driver_id   = 0xC3D3C1E6,
         .probe       = claw_probe,
@@ -282,8 +284,10 @@ static struct ccw_device_id claw_ids[] = {
 MODULE_DEVICE_TABLE(ccw, claw_ids);
 
 static struct ccw_driver claw_ccw_driver = {
-	.owner	= THIS_MODULE,
-	.name	= "claw",
+	.driver = {
+		.owner	= THIS_MODULE,
+		.name	= "claw",
+	},
 	.ids	= claw_ids,
 	.probe	= ccwgroup_probe_ccwdev,
 	.remove	= ccwgroup_remove_ccwdev,
@@ -775,7 +779,7 @@ claw_irq_handler(struct ccw_device *cdev,
 	case CLAW_START_WRITE:
 		if (p_ch->irb->scsw.cmd.dstat & DEV_STAT_UNIT_CHECK) {
 			dev_info(&cdev->dev,
-				"%s: Unit Check Occured in "
+				"%s: Unit Check Occurred in "
 				"write channel\n", dev->name);
 			clear_bit(0, (void *)&p_ch->IO_active);
 			if (p_ch->irb->ecw[0] & 0x80) {
diff --git a/drivers/s390/net/ctcm_fsms.c b/drivers/s390/net/ctcm_fsms.c
index 8c921fc3511a..2d602207541b 100644
--- a/drivers/s390/net/ctcm_fsms.c
+++ b/drivers/s390/net/ctcm_fsms.c
@@ -184,7 +184,7 @@ static void ctcmpc_chx_resend(fsm_instance *, int, void *);
 static void ctcmpc_chx_send_sweep(fsm_instance *fsm, int event, void *arg);
 
 /**
- * Check return code of a preceeding ccw_device call, halt_IO etc...
+ * Check return code of a preceding ccw_device call, halt_IO etc...
  *
  * ch	:	The channel, the error belongs to.
  * Returns the error code (!= 0) to inspect.
diff --git a/drivers/s390/net/ctcm_main.c b/drivers/s390/net/ctcm_main.c
index 4c2845985927..c189296763a4 100644
--- a/drivers/s390/net/ctcm_main.c
+++ b/drivers/s390/net/ctcm_main.c
@@ -1764,16 +1764,20 @@ static struct ccw_device_id ctcm_ids[] = {
 MODULE_DEVICE_TABLE(ccw, ctcm_ids);
 
 static struct ccw_driver ctcm_ccw_driver = {
-	.owner	= THIS_MODULE,
-	.name	= "ctcm",
+	.driver = {
+		.owner	= THIS_MODULE,
+		.name	= "ctcm",
+	},
 	.ids	= ctcm_ids,
 	.probe	= ccwgroup_probe_ccwdev,
 	.remove	= ccwgroup_remove_ccwdev,
 };
 
 static struct ccwgroup_driver ctcm_group_driver = {
-	.owner       = THIS_MODULE,
-	.name        = CTC_DRIVER_NAME,
+	.driver = {
+		.owner	= THIS_MODULE,
+		.name	= CTC_DRIVER_NAME,
+	},
 	.max_slaves  = 2,
 	.driver_id   = 0xC3E3C3D4,	/* CTCM */
 	.probe       = ctcm_probe_device,
diff --git a/drivers/s390/net/lcs.c b/drivers/s390/net/lcs.c
index 30b2a820e670..49d1cfc3217e 100644
--- a/drivers/s390/net/lcs.c
+++ b/drivers/s390/net/lcs.c
@@ -1123,7 +1123,7 @@ list_modified:
 	list_for_each_entry_safe(ipm, tmp, &card->ipm_list, list){
 		switch (ipm->ipm_state) {
 		case LCS_IPM_STATE_SET_REQUIRED:
-			/* del from ipm_list so noone else can tamper with
+			/* del from ipm_list so no one else can tamper with
 			 * this entry */
 			list_del_init(&ipm->list);
 			spin_unlock_irqrestore(&card->ipm_lock, flags);
@@ -2396,8 +2396,10 @@ static struct ccw_device_id lcs_ids[] = {
 MODULE_DEVICE_TABLE(ccw, lcs_ids);
 
 static struct ccw_driver lcs_ccw_driver = {
-	.owner	= THIS_MODULE,
-	.name	= "lcs",
+	.driver = {
+		.owner	= THIS_MODULE,
+		.name	= "lcs",
+	},
 	.ids	= lcs_ids,
 	.probe	= ccwgroup_probe_ccwdev,
 	.remove	= ccwgroup_remove_ccwdev,
@@ -2407,8 +2409,10 @@ static struct ccw_driver lcs_ccw_driver = {
  * LCS ccwgroup driver registration
  */
 static struct ccwgroup_driver lcs_group_driver = {
-	.owner       = THIS_MODULE,
-	.name        = "lcs",
+	.driver = {
+		.owner	= THIS_MODULE,
+		.name	= "lcs",
+	},
 	.max_slaves  = 2,
 	.driver_id   = 0xD3C3E2,
 	.probe       = lcs_probe_device,
diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c
index 25eef304bd47..85cc53117ea6 100644
--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -1107,7 +1107,7 @@ static int qeth_setup_card(struct qeth_card *card)
 	INIT_LIST_HEAD(card->ip_tbd_list);
 	INIT_LIST_HEAD(&card->cmd_waiter_list);
 	init_waitqueue_head(&card->wait_q);
-	/* intial options */
+	/* initial options */
 	qeth_set_intial_options(card);
 	/* IP address takeover */
 	INIT_LIST_HEAD(&card->ipato.entries);
@@ -3902,7 +3902,9 @@ static struct ccw_device_id qeth_ids[] = {
 MODULE_DEVICE_TABLE(ccw, qeth_ids);
 
 static struct ccw_driver qeth_ccw_driver = {
-	.name = "qeth",
+	.driver = {
+		.name = "qeth",
+	},
 	.ids = qeth_ids,
 	.probe = ccwgroup_probe_ccwdev,
 	.remove = ccwgroup_remove_ccwdev,
@@ -4428,8 +4430,10 @@ static int qeth_core_restore(struct ccwgroup_device *gdev)
 }
 
 static struct ccwgroup_driver qeth_core_ccwgroup_driver = {
-	.owner = THIS_MODULE,
-	.name = "qeth",
+	.driver = {
+		.owner = THIS_MODULE,
+		.name = "qeth",
+	},
 	.driver_id = 0xD8C5E3C8,
 	.probe = qeth_core_probe_device,
 	.remove = qeth_core_remove_device,
diff --git a/drivers/s390/scsi/zfcp_ccw.c b/drivers/s390/scsi/zfcp_ccw.c
index 4f7852dd30c7..e8b7cee62046 100644
--- a/drivers/s390/scsi/zfcp_ccw.c
+++ b/drivers/s390/scsi/zfcp_ccw.c
@@ -251,8 +251,10 @@ static void zfcp_ccw_shutdown(struct ccw_device *cdev)
 }
 
 struct ccw_driver zfcp_ccw_driver = {
-	.owner       = THIS_MODULE,
-	.name        = "zfcp",
+	.driver = {
+		.owner	= THIS_MODULE,
+		.name	= "zfcp",
+	},
 	.ids         = zfcp_ccw_device_id,
 	.probe       = zfcp_ccw_probe,
 	.remove      = zfcp_ccw_remove,
diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c
index a0e05ef65924..8512b5c0ef82 100644
--- a/drivers/s390/scsi/zfcp_fsf.c
+++ b/drivers/s390/scsi/zfcp_fsf.c
@@ -1083,7 +1083,7 @@ static void zfcp_fsf_send_els_handler(struct zfcp_fsf_req *req)
 		}
 		break;
 	case FSF_SBAL_MISMATCH:
-		/* should never occure, avoided in zfcp_fsf_send_els */
+		/* should never occur, avoided in zfcp_fsf_send_els */
 		/* fall through */
 	default:
 		req->status |= ZFCP_STATUS_FSFREQ_ERROR;
diff --git a/drivers/s390/scsi/zfcp_qdio.c b/drivers/s390/scsi/zfcp_qdio.c
index 8da5ed644c2b..98e97d90835b 100644
--- a/drivers/s390/scsi/zfcp_qdio.c
+++ b/drivers/s390/scsi/zfcp_qdio.c
@@ -391,7 +391,7 @@ int zfcp_qdio_open(struct zfcp_qdio *qdio)
 	if (do_QDIO(cdev, QDIO_FLAG_SYNC_INPUT, 0, 0, QDIO_MAX_BUFFERS_PER_Q))
 		goto failed_qdio;
 
-	/* set index of first avalable SBALS / number of available SBALS */
+	/* set index of first available SBALS / number of available SBALS */
 	qdio->req_q_idx = 0;
 	atomic_set(&qdio->req_q_free, QDIO_MAX_BUFFERS_PER_Q);
 	atomic_set_mask(ZFCP_STATUS_ADAPTER_QDIOUP, &qdio->adapter->status);
diff --git a/drivers/sbus/char/jsflash.c b/drivers/sbus/char/jsflash.c
index e8566224fe4b..6b4678a7900a 100644
--- a/drivers/sbus/char/jsflash.c
+++ b/drivers/sbus/char/jsflash.c
@@ -13,7 +13,7 @@
  * TODO: Erase/program both banks of a 8MB SIMM.
  *
  * It is anticipated that programming an OS Flash will be a routine
- * procedure. In the same time it is exeedingly dangerous because
+ * procedure. In the same time it is exceedingly dangerous because
  * a user can program its OBP flash with OS image and effectively
  * kill the machine.
  *
diff --git a/drivers/sbus/char/max1617.h b/drivers/sbus/char/max1617.h
index 0bb09c286cb4..cd30819a0a30 100644
--- a/drivers/sbus/char/max1617.h
+++ b/drivers/sbus/char/max1617.h
@@ -6,7 +6,7 @@
 #define MAX1617_CPU_TEMP	0x01 /* Processor die temp in C	*/
 #define MAX1617_STATUS		0x02 /* Chip status bits	*/
 
-/* Read-only versions of changable registers. */
+/* Read-only versions of changeable registers. */
 #define MAX1617_RD_CFG_BYTE	0x03 /* Config register		*/
 #define MAX1617_RD_CVRATE_BYTE	0x04 /* Temp conversion rate	*/
 #define MAX1617_RD_AMB_HIGHLIM	0x05 /* Ambient high limit	*/
diff --git a/drivers/scsi/3w-9xxx.h b/drivers/scsi/3w-9xxx.h
index 3343824855d0..040f7214e5b7 100644
--- a/drivers/scsi/3w-9xxx.h
+++ b/drivers/scsi/3w-9xxx.h
@@ -61,7 +61,7 @@ static twa_message_type twa_aen_table[] = {
 	{0x0000, "AEN queue empty"},
 	{0x0001, "Controller reset occurred"},
 	{0x0002, "Degraded unit detected"},
-	{0x0003, "Controller error occured"},
+	{0x0003, "Controller error occurred"},
 	{0x0004, "Background rebuild failed"},
 	{0x0005, "Background rebuild done"},
 	{0x0006, "Incomplete unit detected"},
diff --git a/drivers/scsi/3w-xxxx.h b/drivers/scsi/3w-xxxx.h
index 8b9f9d17e7fe..49dcf03c631a 100644
--- a/drivers/scsi/3w-xxxx.h
+++ b/drivers/scsi/3w-xxxx.h
@@ -8,7 +8,7 @@
 
    Copyright (C) 1999-2010 3ware Inc.
 
-   Kernel compatiblity By:	Andre Hedrick <andre@suse.com>
+   Kernel compatibility By:	Andre Hedrick <andre@suse.com>
    Non-Copyright (C) 2000	Andre Hedrick <andre@suse.com>
 
    This program is free software; you can redistribute it and/or modify
diff --git a/drivers/scsi/53c700.scr b/drivers/scsi/53c700.scr
index a064a092c604..ec822e3b7a27 100644
--- a/drivers/scsi/53c700.scr
+++ b/drivers/scsi/53c700.scr
@@ -31,7 +31,7 @@ ABSOLUTE	StatusAddress = 0	; Addr to receive status return
 ABSOLUTE	ReceiveMsgAddress = 0	; Addr to receive msg
 ;
 ; This is the magic component for handling scatter-gather.  Each of the
-; SG components is preceeded by a script fragment which moves the
+; SG components is preceded by a script fragment which moves the
 ; necessary amount of data and jumps to the next SG segment.  The final
 ; SG segment jumps back to .  However, this address is the first SG script
 ; segment.
diff --git a/drivers/scsi/53c700_d.h_shipped b/drivers/scsi/53c700_d.h_shipped
index 0b42a51257f2..aa623da333c8 100644
--- a/drivers/scsi/53c700_d.h_shipped
+++ b/drivers/scsi/53c700_d.h_shipped
@@ -34,7 +34,7 @@ ABSOLUTE	StatusAddress = 0	; Addr to receive status return
 ABSOLUTE	ReceiveMsgAddress = 0	; Addr to receive msg
 ;
 ; This is the magic component for handling scatter-gather.  Each of the
-; SG components is preceeded by a script fragment which moves the
+; SG components is preceded by a script fragment which moves the
 ; necessary amount of data and jumps to the next SG segment.  The final
 ; SG segment jumps back to .  However, this address is the first SG script
 ; segment.
diff --git a/drivers/scsi/FlashPoint.c b/drivers/scsi/FlashPoint.c
index e40cdfb7541f..dcd716d68600 100644
--- a/drivers/scsi/FlashPoint.c
+++ b/drivers/scsi/FlashPoint.c
@@ -2509,7 +2509,7 @@ static void FPT_ssel(unsigned long port, unsigned char p_card)
 				WR_HARPOON(port + hp_autostart_3,
 					   (SELECT + SELCHK_STRT));
 
-				/* Setup our STATE so we know what happend when
+				/* Setup our STATE so we know what happened when
 				   the wheels fall off. */
 				currSCCB->Sccb_scsistat = SELECT_ST;
 
@@ -2900,7 +2900,7 @@ static void FPT_SendMsg(unsigned long port, unsigned char message)
  *
  * Function: FPT_sdecm
  *
- * Description: Determine the proper responce to the message from the
+ * Description: Determine the proper response to the message from the
  *              target device.
  *
  *---------------------------------------------------------------------*/
diff --git a/drivers/scsi/NCR5380.c b/drivers/scsi/NCR5380.c
index e7cd2fcbe036..165e4dd865d9 100644
--- a/drivers/scsi/NCR5380.c
+++ b/drivers/scsi/NCR5380.c
@@ -1198,12 +1198,12 @@ static irqreturn_t NCR5380_intr(int dummy, void *dev_id)
 				 */
 
 				if ((NCR5380_read(MODE_REG) & MR_DMA) && ((basr & BASR_END_DMA_TRANSFER) || !(basr & BASR_PHASE_MATCH))) {
-					int transfered;
+					int transferred;
 
 					if (!hostdata->connected)
 						panic("scsi%d : received end of DMA interrupt with no connected cmd\n", instance->hostno);
 
-					transfered = (hostdata->dmalen - NCR5380_dma_residual(instance));
+					transferred = (hostdata->dmalen - NCR5380_dma_residual(instance));
 					hostdata->connected->SCp.this_residual -= transferred;
 					hostdata->connected->SCp.ptr += transferred;
 					hostdata->dmalen = 0;
@@ -1563,7 +1563,7 @@ failed:
  *      bytes to transfer, **data - pointer to data pointer.
  * 
  * Returns : -1 when different phase is entered without transferring
- *      maximum number of bytes, 0 if all bytes or transfered or exit
+ *      maximum number of bytes, 0 if all bytes or transferred or exit
  *      is in same phase.
  *
  *      Also, *phase, *count, *data are modified in place.
@@ -1800,7 +1800,7 @@ static int do_abort(struct Scsi_Host *host) {
  *      bytes to transfer, **data - pointer to data pointer.
  * 
  * Returns : -1 when different phase is entered without transferring
- *      maximum number of bytes, 0 if all bytes or transfered or exit
+ *      maximum number of bytes, 0 if all bytes or transferred or exit
  *      is in same phase.
  *
  *      Also, *phase, *count, *data are modified in place.
diff --git a/drivers/scsi/aacraid/Makefile b/drivers/scsi/aacraid/Makefile
index 92df4d6b6147..1bd9fd18f7f3 100644
--- a/drivers/scsi/aacraid/Makefile
+++ b/drivers/scsi/aacraid/Makefile
@@ -3,6 +3,6 @@
 obj-$(CONFIG_SCSI_AACRAID) := aacraid.o
 
 aacraid-objs	:= linit.o aachba.o commctrl.o comminit.o commsup.o \
-		   dpcsup.o rx.o sa.o rkt.o nark.o
+		   dpcsup.o rx.o sa.o rkt.o nark.o src.o
 
 ccflags-y	:= -Idrivers/scsi
diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c
index 7df2dd1d2c6f..061995741444 100644
--- a/drivers/scsi/aacraid/aachba.c
+++ b/drivers/scsi/aacraid/aachba.c
@@ -5,7 +5,8 @@
  * based on the old aacraid driver that is..
  * Adaptec aacraid device driver for Linux.
  *
- * Copyright (c) 2000-2007 Adaptec, Inc. (aacraid@adaptec.com)
+ * Copyright (c) 2000-2010 Adaptec, Inc.
+ *               2010 PMC-Sierra, Inc. (aacraid@pmc-sierra.com)
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -746,8 +747,8 @@ char * get_container_type(unsigned tindex)
  * Arguments: [1] pointer to void [1] int
  *
  * Purpose: Sets SCSI inquiry data strings for vendor, product
- * and revision level. Allows strings to be set in platform dependant
- * files instead of in OS dependant driver source.
+ * and revision level. Allows strings to be set in platform dependent
+ * files instead of in OS dependent driver source.
  */
 
 static void setinqstr(struct aac_dev *dev, void *data, int tindex)
@@ -1486,7 +1487,9 @@ int aac_get_adapter_info(struct aac_dev* dev)
 			dev->a_ops.adapter_write = aac_write_block;
 		}
 		dev->scsi_host_ptr->max_sectors = AAC_MAX_32BIT_SGBCOUNT;
-		if(!(dev->adapter_info.options & AAC_OPT_NEW_COMM)) {
+		if (dev->adapter_info.options & AAC_OPT_NEW_COMM_TYPE1)
+			dev->adapter_info.options |= AAC_OPT_NEW_COMM;
+		if (!(dev->adapter_info.options & AAC_OPT_NEW_COMM)) {
 			/*
 			 * Worst case size that could cause sg overflow when
 			 * we break up SG elements that are larger than 64KB.
diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h
index 4dbcc055ac78..ffb587817efc 100644
--- a/drivers/scsi/aacraid/aacraid.h
+++ b/drivers/scsi/aacraid/aacraid.h
@@ -12,7 +12,7 @@
  *----------------------------------------------------------------------------*/
 
 #ifndef AAC_DRIVER_BUILD
-# define AAC_DRIVER_BUILD 26400
+# define AAC_DRIVER_BUILD 28000
 # define AAC_DRIVER_BRANCH "-ms"
 #endif
 #define MAXIMUM_NUM_CONTAINERS	32
@@ -277,6 +277,16 @@ enum aac_queue_types {
 
 #define		FsaNormal	1
 
+/* transport FIB header (PMC) */
+struct aac_fib_xporthdr {
+	u64	HostAddress;	/* FIB host address w/o xport header */
+	u32	Size;		/* FIB size excluding xport header */
+	u32	Handle;		/* driver handle to reference the FIB */
+	u64	Reserved[2];
+};
+
+#define		ALIGN32		32
+
 /*
  * Define the FIB. The FIB is the where all the requested data and
  * command information are put to the application on the FSA adapter.
@@ -394,7 +404,9 @@ enum fib_xfer_state {
 	AdapterMicroFib			= (1<<17),
 	BIOSFibPath			= (1<<18),
 	FastResponseCapable		= (1<<19),
-	ApiFib				= (1<<20)	// Its an API Fib.
+	ApiFib				= (1<<20),	/* Its an API Fib */
+	/* PMC NEW COMM: There is no more AIF data pending */
+	NoMoreAifDataAvailable		= (1<<21)
 };
 
 /*
@@ -404,6 +416,7 @@ enum fib_xfer_state {
 
 #define ADAPTER_INIT_STRUCT_REVISION		3
 #define ADAPTER_INIT_STRUCT_REVISION_4		4 // rocket science
+#define ADAPTER_INIT_STRUCT_REVISION_6		6 /* PMC src */
 
 struct aac_init
 {
@@ -428,9 +441,15 @@ struct aac_init
 #define INITFLAGS_NEW_COMM_SUPPORTED	0x00000001
 #define INITFLAGS_DRIVER_USES_UTC_TIME	0x00000010
 #define INITFLAGS_DRIVER_SUPPORTS_PM	0x00000020
+#define INITFLAGS_NEW_COMM_TYPE1_SUPPORTED	0x00000041
 	__le32	MaxIoCommands;	/* max outstanding commands */
 	__le32	MaxIoSize;	/* largest I/O command */
 	__le32	MaxFibSize;	/* largest FIB to adapter */
+	/* ADAPTER_INIT_STRUCT_REVISION_5 begins here */
+	__le32	MaxNumAif;	/* max number of aif */
+	/* ADAPTER_INIT_STRUCT_REVISION_6 begins here */
+	__le32	HostRRQ_AddrLow;
+	__le32	HostRRQ_AddrHigh;	/* Host RRQ (response queue) for SRC */
 };
 
 enum aac_log_level {
@@ -685,7 +704,7 @@ struct rx_inbound {
 #define OutboundDoorbellReg	MUnit.ODR
 
 struct rx_registers {
-	struct rx_mu_registers		MUnit;		/* 1300h - 1344h */
+	struct rx_mu_registers		MUnit;		/* 1300h - 1347h */
 	__le32				reserved1[2];	/* 1348h - 134ch */
 	struct rx_inbound		IndexRegs;
 };
@@ -703,7 +722,7 @@ struct rx_registers {
 #define rkt_inbound rx_inbound
 
 struct rkt_registers {
-	struct rkt_mu_registers		MUnit;		 /* 1300h - 1344h */
+	struct rkt_mu_registers		MUnit;		 /* 1300h - 1347h */
 	__le32				reserved1[1006]; /* 1348h - 22fch */
 	struct rkt_inbound		IndexRegs;	 /* 2300h - */
 };
@@ -713,6 +732,44 @@ struct rkt_registers {
 #define rkt_writeb(AEP, CSR, value)	writeb(value, &((AEP)->regs.rkt->CSR))
 #define rkt_writel(AEP, CSR, value)	writel(value, &((AEP)->regs.rkt->CSR))
 
+/*
+ * PMC SRC message unit registers
+ */
+
+#define src_inbound rx_inbound
+
+struct src_mu_registers {
+				/*	PCI*| Name */
+	__le32	reserved0[8];	/*	00h | Reserved */
+	__le32	IDR;		/*	20h | Inbound Doorbell Register */
+	__le32	IISR;		/*	24h | Inbound Int. Status Register */
+	__le32	reserved1[3];	/*	28h | Reserved */
+	__le32	OIMR;		/*	34h | Outbound Int. Mask Register */
+	__le32	reserved2[25];	/*	38h | Reserved */
+	__le32	ODR_R;		/*	9ch | Outbound Doorbell Read */
+	__le32	ODR_C;		/*	a0h | Outbound Doorbell Clear */
+	__le32	reserved3[6];	/*	a4h | Reserved */
+	__le32	OMR;		/*	bch | Outbound Message Register */
+	__le32	IQ_L;		/*  c0h | Inbound Queue (Low address) */
+	__le32	IQ_H;		/*  c4h | Inbound Queue (High address) */
+};
+
+struct src_registers {
+	struct src_mu_registers MUnit;	/* 00h - c7h */
+	__le32 reserved1[130790];	/* c8h - 7fc5fh */
+	struct src_inbound IndexRegs;	/* 7fc60h */
+};
+
+#define src_readb(AEP, CSR)		readb(&((AEP)->regs.src.bar0->CSR))
+#define src_readl(AEP, CSR)		readl(&((AEP)->regs.src.bar0->CSR))
+#define src_writeb(AEP, CSR, value)	writeb(value, \
+						&((AEP)->regs.src.bar0->CSR))
+#define src_writel(AEP, CSR, value)	writel(value, \
+						&((AEP)->regs.src.bar0->CSR))
+
+#define SRC_ODR_SHIFT		12
+#define SRC_IDR_SHIFT		9
+
 typedef void (*fib_callback)(void *ctxt, struct fib *fibctx);
 
 struct aac_fib_context {
@@ -879,6 +936,7 @@ struct aac_supplement_adapter_info
 #define AAC_OPTION_MU_RESET		cpu_to_le32(0x00000001)
 #define AAC_OPTION_IGNORE_RESET		cpu_to_le32(0x00000002)
 #define AAC_OPTION_POWER_MANAGEMENT	cpu_to_le32(0x00000004)
+#define AAC_OPTION_DOORBELL_RESET	cpu_to_le32(0x00004000)
 #define AAC_SIS_VERSION_V3	3
 #define AAC_SIS_SLOT_UNKNOWN	0xFF
 
@@ -940,6 +998,7 @@ struct aac_bus_info_response {
 #define AAC_OPT_SUPPLEMENT_ADAPTER_INFO	cpu_to_le32(1<<16)
 #define AAC_OPT_NEW_COMM		cpu_to_le32(1<<17)
 #define AAC_OPT_NEW_COMM_64		cpu_to_le32(1<<18)
+#define AAC_OPT_NEW_COMM_TYPE1		cpu_to_le32(1<<28)
 
 struct aac_dev
 {
@@ -952,6 +1011,7 @@ struct aac_dev
 	 */
 	unsigned		max_fib_size;
 	unsigned		sg_tablesize;
+	unsigned		max_num_aif;
 
 	/*
 	 *	Map for 128 fib objects (64k)
@@ -980,10 +1040,21 @@ struct aac_dev
 	struct adapter_ops	a_ops;
 	unsigned long		fsrev;		/* Main driver's revision number */
 
-	unsigned		base_size;	/* Size of mapped in region */
+	unsigned long		dbg_base;	/* address of UART
+						 * debug buffer */
+
+	unsigned		base_size, dbg_size;	/* Size of
+							 *  mapped in region */
+
 	struct aac_init		*init;		/* Holds initialization info to communicate with adapter */
 	dma_addr_t		init_pa;	/* Holds physical address of the init struct */
 
+	u32			*host_rrq;	/* response queue
+						 * if AAC_COMM_MESSAGE_TYPE1 */
+
+	dma_addr_t		host_rrq_pa;	/* phys. address */
+	u32			host_rrq_idx;	/* index into rrq buffer */
+
 	struct pci_dev		*pdev;		/* Our PCI interface */
 	void *			printfbuf;	/* pointer to buffer used for printf's from the adapter */
 	void *			comm_addr;	/* Base address of Comm area */
@@ -1003,14 +1074,20 @@ struct aac_dev
 	 */
 #ifndef AAC_MIN_FOOTPRINT_SIZE
 #	define AAC_MIN_FOOTPRINT_SIZE 8192
+#	define AAC_MIN_SRC_BAR0_SIZE 0x400000
+#	define AAC_MIN_SRC_BAR1_SIZE 0x800
 #endif
 	union
 	{
 		struct sa_registers __iomem *sa;
 		struct rx_registers __iomem *rx;
 		struct rkt_registers __iomem *rkt;
+		struct {
+			struct src_registers __iomem *bar0;
+			char __iomem *bar1;
+		} src;
 	} regs;
-	volatile void __iomem *base;
+	volatile void __iomem *base, *dbg_base_mapped;
 	volatile struct rx_inbound __iomem *IndexRegs;
 	u32			OIMR; /* Mask Register Cache */
 	/*
@@ -1031,9 +1108,8 @@ struct aac_dev
 	u8			comm_interface;
 #	define AAC_COMM_PRODUCER 0
 #	define AAC_COMM_MESSAGE  1
-	/* macro side-effects BEWARE */
-#	define			raw_io_interface \
-	  init->InitStructRevision==cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION_4)
+#	define AAC_COMM_MESSAGE_TYPE1	3
+	u8			raw_io_interface;
 	u8			raw_io_64;
 	u8			printf_enabled;
 	u8			in_reset;
@@ -1183,7 +1259,7 @@ struct aac_dev
 #define CACHE_UNSTABLE		2
 
 /*
- *	Lets the client know at which level the data was commited on
+ *	Lets the client know at which level the data was committed on
  *	a write request
  */
 
@@ -1789,6 +1865,10 @@ extern struct aac_common aac_config;
 #define DoorBellAdapterNormCmdNotFull	(1<<3)	/* Adapter -> Host */
 #define DoorBellAdapterNormRespNotFull	(1<<4)	/* Adapter -> Host */
 #define DoorBellPrintfReady		(1<<5)	/* Adapter -> Host */
+#define DoorBellAifPending		(1<<6)	/* Adapter -> Host */
+
+/* PMC specific outbound doorbell bits */
+#define PmDoorBellResponseSent		(1<<1)	/* Adapter -> Host */
 
 /*
  *	For FIB communication, we need all of the following things
@@ -1831,6 +1911,9 @@ extern struct aac_common aac_config;
 #define		AifReqAPIJobUpdate	109	/* Update a job report from the API */
 #define		AifReqAPIJobFinish	110	/* Finish a job from the API */
 
+/* PMC NEW COMM: Request the event data */
+#define		AifReqEvent		200
+
 /*
  *	Adapter Initiated FIB command structures. Start with the adapter
  *	initiated FIBs that really come from the adapter, and get responded
@@ -1886,10 +1969,13 @@ int aac_rx_init(struct aac_dev *dev);
 int aac_rkt_init(struct aac_dev *dev);
 int aac_nark_init(struct aac_dev *dev);
 int aac_sa_init(struct aac_dev *dev);
+int aac_src_init(struct aac_dev *dev);
 int aac_queue_get(struct aac_dev * dev, u32 * index, u32 qid, struct hw_fib * hw_fib, int wait, struct fib * fibptr, unsigned long *nonotify);
 unsigned int aac_response_normal(struct aac_queue * q);
 unsigned int aac_command_normal(struct aac_queue * q);
-unsigned int aac_intr_normal(struct aac_dev * dev, u32 Index);
+unsigned int aac_intr_normal(struct aac_dev *dev, u32 Index,
+			int isAif, int isFastResponse,
+			struct hw_fib *aif_fib);
 int aac_reset_adapter(struct aac_dev * dev, int forced);
 int aac_check_health(struct aac_dev * dev);
 int aac_command_thread(void *data);
diff --git a/drivers/scsi/aacraid/commctrl.c b/drivers/scsi/aacraid/commctrl.c
index 645ddd9d9b9e..8a0b33033177 100644
--- a/drivers/scsi/aacraid/commctrl.c
+++ b/drivers/scsi/aacraid/commctrl.c
@@ -5,7 +5,8 @@
  * based on the old aacraid driver that is..
  * Adaptec aacraid device driver for Linux.
  *
- * Copyright (c) 2000-2007 Adaptec, Inc. (aacraid@adaptec.com)
+ * Copyright (c) 2000-2010 Adaptec, Inc.
+ *               2010 PMC-Sierra, Inc. (aacraid@pmc-sierra.com)
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/drivers/scsi/aacraid/comminit.c b/drivers/scsi/aacraid/comminit.c
index a7261486ccd4..7ac8fdb5577b 100644
--- a/drivers/scsi/aacraid/comminit.c
+++ b/drivers/scsi/aacraid/comminit.c
@@ -5,7 +5,8 @@
  * based on the old aacraid driver that is..
  * Adaptec aacraid device driver for Linux.
  *
- * Copyright (c) 2000-2007 Adaptec, Inc. (aacraid@adaptec.com)
+ * Copyright (c) 2000-2010 Adaptec, Inc.
+ *               2010 PMC-Sierra, Inc. (aacraid@pmc-sierra.com)
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -52,12 +53,16 @@ static int aac_alloc_comm(struct aac_dev *dev, void **commaddr, unsigned long co
 	unsigned long size, align;
 	const unsigned long fibsize = 4096;
 	const unsigned long printfbufsiz = 256;
+	unsigned long host_rrq_size = 0;
 	struct aac_init *init;
 	dma_addr_t phys;
 	unsigned long aac_max_hostphysmempages;
 
-	size = fibsize + sizeof(struct aac_init) + commsize + commalign + printfbufsiz;
-
+	if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE1)
+		host_rrq_size = (dev->scsi_host_ptr->can_queue
+			+ AAC_NUM_MGT_FIB) * sizeof(u32);
+	size = fibsize + sizeof(struct aac_init) + commsize +
+			commalign + printfbufsiz + host_rrq_size;
  
 	base = pci_alloc_consistent(dev->pdev, size, &phys);
 
@@ -70,8 +75,14 @@ static int aac_alloc_comm(struct aac_dev *dev, void **commaddr, unsigned long co
 	dev->comm_phys = phys;
 	dev->comm_size = size;
 	
-	dev->init = (struct aac_init *)(base + fibsize);
-	dev->init_pa = phys + fibsize;
+	if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE1) {
+		dev->host_rrq = (u32 *)(base + fibsize);
+		dev->host_rrq_pa = phys + fibsize;
+		memset(dev->host_rrq, 0, host_rrq_size);
+	}
+
+	dev->init = (struct aac_init *)(base + fibsize + host_rrq_size);
+	dev->init_pa = phys + fibsize + host_rrq_size;
 
 	init = dev->init;
 
@@ -106,8 +117,13 @@ static int aac_alloc_comm(struct aac_dev *dev, void **commaddr, unsigned long co
 
 	init->InitFlags = 0;
 	if (dev->comm_interface == AAC_COMM_MESSAGE) {
-		init->InitFlags = cpu_to_le32(INITFLAGS_NEW_COMM_SUPPORTED);
+		init->InitFlags |= cpu_to_le32(INITFLAGS_NEW_COMM_SUPPORTED);
 		dprintk((KERN_WARNING"aacraid: New Comm Interface enabled\n"));
+	} else if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE1) {
+		init->InitStructRevision = cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION_6);
+		init->InitFlags |= cpu_to_le32(INITFLAGS_NEW_COMM_TYPE1_SUPPORTED);
+		dprintk((KERN_WARNING
+			"aacraid: New Comm Interface type1 enabled\n"));
 	}
 	init->InitFlags |= cpu_to_le32(INITFLAGS_DRIVER_USES_UTC_TIME |
 				       INITFLAGS_DRIVER_SUPPORTS_PM);
@@ -115,11 +131,18 @@ static int aac_alloc_comm(struct aac_dev *dev, void **commaddr, unsigned long co
 	init->MaxIoSize = cpu_to_le32(dev->scsi_host_ptr->max_sectors << 9);
 	init->MaxFibSize = cpu_to_le32(dev->max_fib_size);
 
+	init->MaxNumAif = cpu_to_le32(dev->max_num_aif);
+	init->HostRRQ_AddrHigh = (u32)((u64)dev->host_rrq_pa >> 32);
+	init->HostRRQ_AddrLow = (u32)(dev->host_rrq_pa & 0xffffffff);
+
+
 	/*
 	 * Increment the base address by the amount already used
 	 */
-	base = base + fibsize + sizeof(struct aac_init);
-	phys = (dma_addr_t)((ulong)phys + fibsize + sizeof(struct aac_init));
+	base = base + fibsize + host_rrq_size + sizeof(struct aac_init);
+	phys = (dma_addr_t)((ulong)phys + fibsize + host_rrq_size +
+		sizeof(struct aac_init));
+
 	/*
 	 *	Align the beginning of Headers to commalign
 	 */
@@ -314,15 +337,22 @@ struct aac_dev *aac_init_adapter(struct aac_dev *dev)
 		- sizeof(struct aac_write) + sizeof(struct sgentry))
 			/ sizeof(struct sgentry);
 	dev->comm_interface = AAC_COMM_PRODUCER;
-	dev->raw_io_64 = 0;
+	dev->raw_io_interface = dev->raw_io_64 = 0;
+
 	if ((!aac_adapter_sync_cmd(dev, GET_ADAPTER_PROPERTIES,
 		0, 0, 0, 0, 0, 0, status+0, status+1, status+2, NULL, NULL)) &&
 	 		(status[0] == 0x00000001)) {
 		if (status[1] & le32_to_cpu(AAC_OPT_NEW_COMM_64))
 			dev->raw_io_64 = 1;
-		if (dev->a_ops.adapter_comm &&
-		    (status[1] & le32_to_cpu(AAC_OPT_NEW_COMM)))
-			dev->comm_interface = AAC_COMM_MESSAGE;
+		if (dev->a_ops.adapter_comm) {
+			if (status[1] & le32_to_cpu(AAC_OPT_NEW_COMM_TYPE1)) {
+				dev->comm_interface = AAC_COMM_MESSAGE_TYPE1;
+				dev->raw_io_interface = 1;
+			} else if (status[1] & le32_to_cpu(AAC_OPT_NEW_COMM)) {
+				dev->comm_interface = AAC_COMM_MESSAGE;
+				dev->raw_io_interface = 1;
+			}
+		}
 		if ((dev->comm_interface == AAC_COMM_MESSAGE) &&
 		    (status[2] > dev->base_size)) {
 			aac_adapter_ioremap(dev, 0);
@@ -350,10 +380,12 @@ struct aac_dev *aac_init_adapter(struct aac_dev *dev)
 		 *	status[3] & 0xFFFF	maximum number FIBs outstanding
 		 */
 		host->max_sectors = (status[1] >> 16) << 1;
-		dev->max_fib_size = status[1] & 0xFFFF;
+		/* Multiple of 32 for PMC */
+		dev->max_fib_size = status[1] & 0xFFE0;
 		host->sg_tablesize = status[2] >> 16;
 		dev->sg_tablesize = status[2] & 0xFFFF;
 		host->can_queue = (status[3] & 0xFFFF) - AAC_NUM_MGT_FIB;
+		dev->max_num_aif = status[4] & 0xFFFF;
 		/*
 		 *	NOTE:
 		 *	All these overrides are based on a fixed internal
diff --git a/drivers/scsi/aacraid/commsup.c b/drivers/scsi/aacraid/commsup.c
index 060ac4bd5a14..e7d0d47b9185 100644
--- a/drivers/scsi/aacraid/commsup.c
+++ b/drivers/scsi/aacraid/commsup.c
@@ -5,7 +5,8 @@
  * based on the old aacraid driver that is..
  * Adaptec aacraid device driver for Linux.
  *
- * Copyright (c) 2000-2007 Adaptec, Inc. (aacraid@adaptec.com)
+ * Copyright (c) 2000-2010 Adaptec, Inc.
+ *               2010 PMC-Sierra, Inc. (aacraid@pmc-sierra.com)
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -63,9 +64,11 @@ static int fib_map_alloc(struct aac_dev *dev)
 	  "allocate hardware fibs pci_alloc_consistent(%p, %d * (%d + %d), %p)\n",
 	  dev->pdev, dev->max_fib_size, dev->scsi_host_ptr->can_queue,
 	  AAC_NUM_MGT_FIB, &dev->hw_fib_pa));
-	if((dev->hw_fib_va = pci_alloc_consistent(dev->pdev, dev->max_fib_size
-	  * (dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB),
-	  &dev->hw_fib_pa))==NULL)
+	dev->hw_fib_va = pci_alloc_consistent(dev->pdev,
+		(dev->max_fib_size + sizeof(struct aac_fib_xporthdr))
+		* (dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB) + (ALIGN32 - 1),
+		&dev->hw_fib_pa);
+	if (dev->hw_fib_va == NULL)
 		return -ENOMEM;
 	return 0;
 }
@@ -110,9 +113,22 @@ int aac_fib_setup(struct aac_dev * dev)
 	if (i<0)
 		return -ENOMEM;
 
+	/* 32 byte alignment for PMC */
+	hw_fib_pa = (dev->hw_fib_pa + (ALIGN32 - 1)) & ~(ALIGN32 - 1);
+	dev->hw_fib_va = (struct hw_fib *)((unsigned char *)dev->hw_fib_va +
+		(hw_fib_pa - dev->hw_fib_pa));
+	dev->hw_fib_pa = hw_fib_pa;
+	memset(dev->hw_fib_va, 0,
+		(dev->max_fib_size + sizeof(struct aac_fib_xporthdr)) *
+		(dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB));
+
+	/* add Xport header */
+	dev->hw_fib_va = (struct hw_fib *)((unsigned char *)dev->hw_fib_va +
+		sizeof(struct aac_fib_xporthdr));
+	dev->hw_fib_pa += sizeof(struct aac_fib_xporthdr);
+
 	hw_fib = dev->hw_fib_va;
 	hw_fib_pa = dev->hw_fib_pa;
-	memset(hw_fib, 0, dev->max_fib_size * (dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB));
 	/*
 	 *	Initialise the fibs
 	 */
@@ -129,8 +145,10 @@ int aac_fib_setup(struct aac_dev * dev)
 		hw_fib->header.XferState = cpu_to_le32(0xffffffff);
 		hw_fib->header.SenderSize = cpu_to_le16(dev->max_fib_size);
 		fibptr->hw_fib_pa = hw_fib_pa;
-		hw_fib = (struct hw_fib *)((unsigned char *)hw_fib + dev->max_fib_size);
-		hw_fib_pa = hw_fib_pa + dev->max_fib_size;
+		hw_fib = (struct hw_fib *)((unsigned char *)hw_fib +
+			dev->max_fib_size + sizeof(struct aac_fib_xporthdr));
+		hw_fib_pa = hw_fib_pa +
+			dev->max_fib_size + sizeof(struct aac_fib_xporthdr);
 	}
 	/*
 	 *	Add the fib chain to the free list
@@ -403,7 +421,7 @@ int aac_fib_send(u16 command, struct fib *fibptr, unsigned long size,
 	if (!(hw_fib->header.XferState & cpu_to_le32(HostOwned)))
 		return -EBUSY;
 	/*
-	 *	There are 5 cases with the wait and reponse requested flags.
+	 *	There are 5 cases with the wait and response requested flags.
 	 *	The only invalid cases are if the caller requests to wait and
 	 *	does not request a response and if the caller does not want a
 	 *	response and the Fib is not allocated from pool. If a response
@@ -664,9 +682,14 @@ int aac_fib_adapter_complete(struct fib *fibptr, unsigned short size)
 	unsigned long nointr = 0;
 	unsigned long qflags;
 
+	if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE1) {
+		kfree(hw_fib);
+		return 0;
+	}
+
 	if (hw_fib->header.XferState == 0) {
 		if (dev->comm_interface == AAC_COMM_MESSAGE)
-			kfree (hw_fib);
+			kfree(hw_fib);
 		return 0;
 	}
 	/*
@@ -674,7 +697,7 @@ int aac_fib_adapter_complete(struct fib *fibptr, unsigned short size)
 	 */
 	if (hw_fib->header.StructType != FIB_MAGIC) {
 		if (dev->comm_interface == AAC_COMM_MESSAGE)
-			kfree (hw_fib);
+			kfree(hw_fib);
 		return -EINVAL;
 	}
 	/*
diff --git a/drivers/scsi/aacraid/dpcsup.c b/drivers/scsi/aacraid/dpcsup.c
index 9c7408fe8c7d..f0c66a80ad13 100644
--- a/drivers/scsi/aacraid/dpcsup.c
+++ b/drivers/scsi/aacraid/dpcsup.c
@@ -5,7 +5,8 @@
  * based on the old aacraid driver that is..
  * Adaptec aacraid device driver for Linux.
  *
- * Copyright (c) 2000-2007 Adaptec, Inc. (aacraid@adaptec.com)
+ * Copyright (c) 2000-2010 Adaptec, Inc.
+ *               2010 PMC-Sierra, Inc. (aacraid@pmc-sierra.com)
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -228,6 +229,48 @@ unsigned int aac_command_normal(struct aac_queue *q)
 	return 0;
 }
 
+/*
+ *
+ * aac_aif_callback
+ * @context: the context set in the fib - here it is scsi cmd
+ * @fibptr: pointer to the fib
+ *
+ * Handles the AIFs - new method (SRC)
+ *
+ */
+
+static void aac_aif_callback(void *context, struct fib * fibptr)
+{
+	struct fib *fibctx;
+	struct aac_dev *dev;
+	struct aac_aifcmd *cmd;
+	int status;
+
+	fibctx = (struct fib *)context;
+	BUG_ON(fibptr == NULL);
+	dev = fibptr->dev;
+
+	if (fibptr->hw_fib_va->header.XferState &
+	    cpu_to_le32(NoMoreAifDataAvailable)) {
+		aac_fib_complete(fibptr);
+		aac_fib_free(fibptr);
+		return;
+	}
+
+	aac_intr_normal(dev, 0, 1, 0, fibptr->hw_fib_va);
+
+	aac_fib_init(fibctx);
+	cmd = (struct aac_aifcmd *) fib_data(fibctx);
+	cmd->command = cpu_to_le32(AifReqEvent);
+
+	status = aac_fib_send(AifRequest,
+		fibctx,
+		sizeof(struct hw_fib)-sizeof(struct aac_fibhdr),
+		FsaNormal,
+		0, 1,
+		(fib_callback)aac_aif_callback, fibctx);
+}
+
 
 /**
  *	aac_intr_normal	-	Handle command replies
@@ -238,19 +281,17 @@ unsigned int aac_command_normal(struct aac_queue *q)
  *	know there is a response on our normal priority queue. We will pull off
  *	all QE there are and wake up all the waiters before exiting.
  */
-
-unsigned int aac_intr_normal(struct aac_dev * dev, u32 index)
+unsigned int aac_intr_normal(struct aac_dev *dev, u32 index,
+			int isAif, int isFastResponse, struct hw_fib *aif_fib)
 {
 	unsigned long mflags;
 	dprintk((KERN_INFO "aac_intr_normal(%p,%x)\n", dev, index));
-	if ((index & 0x00000002L)) {
+	if (isAif == 1) {	/* AIF - common */
 		struct hw_fib * hw_fib;
 		struct fib * fib;
 		struct aac_queue *q = &dev->queues->queue[HostNormCmdQueue];
 		unsigned long flags;
 
-		if (index == 0xFFFFFFFEL) /* Special Case */
-			return 0;	  /* Do nothing */
 		/*
 		 *	Allocate a FIB. For non queued stuff we can just use
 		 * the stack so we are happy. We need a fib object in order to
@@ -263,8 +304,13 @@ unsigned int aac_intr_normal(struct aac_dev * dev, u32 index)
 			kfree (fib);
 			return 1;
 		}
-		memcpy(hw_fib, (struct hw_fib *)(((uintptr_t)(dev->regs.sa)) +
-		  (index & ~0x00000002L)), sizeof(struct hw_fib));
+		if (aif_fib != NULL) {
+			memcpy(hw_fib, aif_fib, sizeof(struct hw_fib));
+		} else {
+			memcpy(hw_fib,
+				(struct hw_fib *)(((uintptr_t)(dev->regs.sa)) +
+				index), sizeof(struct hw_fib));
+		}
 		INIT_LIST_HEAD(&fib->fiblink);
 		fib->type = FSAFS_NTC_FIB_CONTEXT;
 		fib->size = sizeof(struct fib);
@@ -277,9 +323,26 @@ unsigned int aac_intr_normal(struct aac_dev * dev, u32 index)
 	        wake_up_interruptible(&q->cmdready);
 		spin_unlock_irqrestore(q->lock, flags);
 		return 1;
+	} else if (isAif == 2) {	/* AIF - new (SRC) */
+		struct fib *fibctx;
+		struct aac_aifcmd *cmd;
+
+		fibctx = aac_fib_alloc(dev);
+		if (!fibctx)
+			return 1;
+		aac_fib_init(fibctx);
+
+		cmd = (struct aac_aifcmd *) fib_data(fibctx);
+		cmd->command = cpu_to_le32(AifReqEvent);
+
+		return aac_fib_send(AifRequest,
+			fibctx,
+			sizeof(struct hw_fib)-sizeof(struct aac_fibhdr),
+			FsaNormal,
+			0, 1,
+			(fib_callback)aac_aif_callback, fibctx);
 	} else {
-		int fast = index & 0x01;
-		struct fib * fib = &dev->fibs[index >> 2];
+		struct fib *fib = &dev->fibs[index];
 		struct hw_fib * hwfib = fib->hw_fib_va;
 
 		/*
@@ -298,7 +361,7 @@ unsigned int aac_intr_normal(struct aac_dev * dev, u32 index)
 			return 0;
 		}
 
-		if (fast) {
+		if (isFastResponse) {
 			/*
 			 *	Doctor the fib
 			 */
diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c
index 2c93d9496d62..4ff26521d75f 100644
--- a/drivers/scsi/aacraid/linit.c
+++ b/drivers/scsi/aacraid/linit.c
@@ -5,7 +5,8 @@
  * based on the old aacraid driver that is..
  * Adaptec aacraid device driver for Linux.
  *
- * Copyright (c) 2000-2007 Adaptec, Inc. (aacraid@adaptec.com)
+ * Copyright (c) 2000-2010 Adaptec, Inc.
+ *               2010 PMC-Sierra, Inc. (aacraid@pmc-sierra.com)
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -54,7 +55,7 @@
 
 #include "aacraid.h"
 
-#define AAC_DRIVER_VERSION		"1.1-5"
+#define AAC_DRIVER_VERSION		"1.1-7"
 #ifndef AAC_DRIVER_BRANCH
 #define AAC_DRIVER_BRANCH		""
 #endif
@@ -161,6 +162,7 @@ static const struct pci_device_id aac_pci_tbl[] __devinitdata = {
 	{ 0x9005, 0x0285, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 59 }, /* Adaptec Catch All */
 	{ 0x9005, 0x0286, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 60 }, /* Adaptec Rocket Catch All */
 	{ 0x9005, 0x0288, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 61 }, /* Adaptec NEMER/ARK Catch All */
+	{ 0x9005, 0x028b, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 62 }, /* Adaptec PMC Catch All */
 	{ 0,}
 };
 MODULE_DEVICE_TABLE(pci, aac_pci_tbl);
@@ -235,7 +237,8 @@ static struct aac_driver_ident aac_drivers[] = {
 	{ aac_rx_init, "aacraid",  "Legend  ", "RAID            ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* Legend Catchall */
 	{ aac_rx_init, "aacraid",  "ADAPTEC ", "RAID            ", 2 }, /* Adaptec Catch All */
 	{ aac_rkt_init, "aacraid", "ADAPTEC ", "RAID            ", 2 }, /* Adaptec Rocket Catch All */
-	{ aac_nark_init, "aacraid", "ADAPTEC ", "RAID            ", 2 } /* Adaptec NEMER/ARK Catch All */
+	{ aac_nark_init, "aacraid", "ADAPTEC ", "RAID           ", 2 }, /* Adaptec NEMER/ARK Catch All */
+	{ aac_src_init, "aacraid", "ADAPTEC ", "RAID            ", 2 } /* Adaptec PMC Catch All */
 };
 
 /**
@@ -653,8 +656,10 @@ static int aac_eh_reset(struct scsi_cmnd* cmd)
 	 * This adapter needs a blind reset, only do so for Adapters that
 	 * support a register, instead of a commanded, reset.
 	 */
-	if ((aac->supplement_adapter_info.SupportedOptions2 &
-	   AAC_OPTION_MU_RESET) &&
+	if (((aac->supplement_adapter_info.SupportedOptions2 &
+	  AAC_OPTION_MU_RESET) ||
+	  (aac->supplement_adapter_info.SupportedOptions2 &
+	  AAC_OPTION_DOORBELL_RESET)) &&
 	  aac_check_reset &&
 	  ((aac_check_reset != 1) ||
 	   !(aac->supplement_adapter_info.SupportedOptions2 &
diff --git a/drivers/scsi/aacraid/nark.c b/drivers/scsi/aacraid/nark.c
index c55f7c862f0e..f397d21a0c06 100644
--- a/drivers/scsi/aacraid/nark.c
+++ b/drivers/scsi/aacraid/nark.c
@@ -4,7 +4,8 @@
  * based on the old aacraid driver that is..
  * Adaptec aacraid device driver for Linux.
  *
- * Copyright (c) 2006-2007 Adaptec, Inc. (aacraid@adaptec.com)
+ * Copyright (c) 2000-2010 Adaptec, Inc.
+ *               2010 PMC-Sierra, Inc. (aacraid@pmc-sierra.com)
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/drivers/scsi/aacraid/rkt.c b/drivers/scsi/aacraid/rkt.c
index 16d8db550027..be44de92429a 100644
--- a/drivers/scsi/aacraid/rkt.c
+++ b/drivers/scsi/aacraid/rkt.c
@@ -5,7 +5,8 @@
  * based on the old aacraid driver that is..
  * Adaptec aacraid device driver for Linux.
  *
- * Copyright (c) 2000-2007 Adaptec, Inc. (aacraid@adaptec.com)
+ * Copyright (c) 2000-2010 Adaptec, Inc.
+ *               2010 PMC-Sierra, Inc. (aacraid@pmc-sierra.com)
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/drivers/scsi/aacraid/rx.c b/drivers/scsi/aacraid/rx.c
index 84d77fd86e5b..ce530f113fdb 100644
--- a/drivers/scsi/aacraid/rx.c
+++ b/drivers/scsi/aacraid/rx.c
@@ -5,7 +5,8 @@
  * based on the old aacraid driver that is..
  * Adaptec aacraid device driver for Linux.
  *
- * Copyright (c) 2000-2007 Adaptec, Inc. (aacraid@adaptec.com)
+ * Copyright (c) 2000-2010 Adaptec, Inc.
+ *               2010 PMC-Sierra, Inc. (aacraid@pmc-sierra.com)
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -84,15 +85,35 @@ static irqreturn_t aac_rx_intr_producer(int irq, void *dev_id)
 
 static irqreturn_t aac_rx_intr_message(int irq, void *dev_id)
 {
+	int isAif, isFastResponse, isSpecial;
 	struct aac_dev *dev = dev_id;
 	u32 Index = rx_readl(dev, MUnit.OutboundQueue);
 	if (unlikely(Index == 0xFFFFFFFFL))
 		Index = rx_readl(dev, MUnit.OutboundQueue);
 	if (likely(Index != 0xFFFFFFFFL)) {
 		do {
-			if (unlikely(aac_intr_normal(dev, Index))) {
-				rx_writel(dev, MUnit.OutboundQueue, Index);
-				rx_writel(dev, MUnit.ODR, DoorBellAdapterNormRespReady);
+			isAif = isFastResponse = isSpecial = 0;
+			if (Index & 0x00000002L) {
+				isAif = 1;
+				if (Index == 0xFFFFFFFEL)
+					isSpecial = 1;
+				Index &= ~0x00000002L;
+			} else {
+				if (Index & 0x00000001L)
+					isFastResponse = 1;
+				Index >>= 2;
+			}
+			if (!isSpecial) {
+				if (unlikely(aac_intr_normal(dev,
+						Index, isAif,
+						isFastResponse, NULL))) {
+					rx_writel(dev,
+						MUnit.OutboundQueue,
+						Index);
+					rx_writel(dev,
+						MUnit.ODR,
+						DoorBellAdapterNormRespReady);
+				}
 			}
 			Index = rx_readl(dev, MUnit.OutboundQueue);
 		} while (Index != 0xFFFFFFFFL);
@@ -631,6 +652,10 @@ int _aac_rx_init(struct aac_dev *dev)
 			name, instance);
 		goto error_iounmap;
 	}
+	dev->dbg_base = dev->scsi_host_ptr->base;
+	dev->dbg_base_mapped = dev->base;
+	dev->dbg_size = dev->base_size;
+
 	aac_adapter_enable_int(dev);
 	/*
 	 *	Tell the adapter that all is configured, and it can
diff --git a/drivers/scsi/aacraid/sa.c b/drivers/scsi/aacraid/sa.c
index 622c21c68e65..e5d4457121ea 100644
--- a/drivers/scsi/aacraid/sa.c
+++ b/drivers/scsi/aacraid/sa.c
@@ -5,7 +5,8 @@
  * based on the old aacraid driver that is..
  * Adaptec aacraid device driver for Linux.
  *
- * Copyright (c) 2000-2007 Adaptec, Inc. (aacraid@adaptec.com)
+ * Copyright (c) 2000-2010 Adaptec, Inc.
+ *               2010 PMC-Sierra, Inc. (aacraid@pmc-sierra.com)
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -391,6 +392,10 @@ int aac_sa_init(struct aac_dev *dev)
 			name, instance);
 		goto error_iounmap;
 	}
+	dev->dbg_base = dev->scsi_host_ptr->base;
+	dev->dbg_base_mapped = dev->base;
+	dev->dbg_size = dev->base_size;
+
 	aac_adapter_enable_int(dev);
 
 	/*
diff --git a/drivers/scsi/aacraid/src.c b/drivers/scsi/aacraid/src.c
new file mode 100644
index 000000000000..c20494660603
--- /dev/null
+++ b/drivers/scsi/aacraid/src.c
@@ -0,0 +1,594 @@
+/*
+ *	Adaptec AAC series RAID controller driver
+ *	(c) Copyright 2001 Red Hat Inc.
+ *
+ * based on the old aacraid driver that is..
+ * Adaptec aacraid device driver for Linux.
+ *
+ * Copyright (c) 2000-2010 Adaptec, Inc.
+ *               2010 PMC-Sierra, Inc. (aacraid@pmc-sierra.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * Module Name:
+ *  src.c
+ *
+ * Abstract: Hardware Device Interface for PMC SRC based controllers
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/spinlock.h>
+#include <linux/slab.h>
+#include <linux/blkdev.h>
+#include <linux/delay.h>
+#include <linux/version.h>
+#include <linux/completion.h>
+#include <linux/time.h>
+#include <linux/interrupt.h>
+#include <scsi/scsi_host.h>
+
+#include "aacraid.h"
+
+static irqreturn_t aac_src_intr_message(int irq, void *dev_id)
+{
+	struct aac_dev *dev = dev_id;
+	unsigned long bellbits, bellbits_shifted;
+	int our_interrupt = 0;
+	int isFastResponse;
+	u32 index, handle;
+
+	bellbits = src_readl(dev, MUnit.ODR_R);
+	if (bellbits & PmDoorBellResponseSent) {
+		bellbits = PmDoorBellResponseSent;
+		/* handle async. status */
+		our_interrupt = 1;
+		index = dev->host_rrq_idx;
+		if (dev->host_rrq[index] == 0) {
+			u32 old_index = index;
+			/* adjust index */
+			do {
+				index++;
+				if (index == dev->scsi_host_ptr->can_queue +
+							AAC_NUM_MGT_FIB)
+					index = 0;
+				if (dev->host_rrq[index] != 0)
+					break;
+			} while (index != old_index);
+			dev->host_rrq_idx = index;
+		}
+		for (;;) {
+			isFastResponse = 0;
+			/* remove toggle bit (31) */
+			handle = (dev->host_rrq[index] & 0x7fffffff);
+			/* check fast response bit (30) */
+			if (handle & 0x40000000)
+				isFastResponse = 1;
+			handle &= 0x0000ffff;
+			if (handle == 0)
+				break;
+
+			aac_intr_normal(dev, handle-1, 0, isFastResponse, NULL);
+
+			dev->host_rrq[index++] = 0;
+			if (index == dev->scsi_host_ptr->can_queue +
+						AAC_NUM_MGT_FIB)
+				index = 0;
+			dev->host_rrq_idx = index;
+		}
+	} else {
+		bellbits_shifted = (bellbits >> SRC_ODR_SHIFT);
+		if (bellbits_shifted & DoorBellAifPending) {
+			our_interrupt = 1;
+			/* handle AIF */
+			aac_intr_normal(dev, 0, 2, 0, NULL);
+		}
+	}
+
+	if (our_interrupt) {
+		src_writel(dev, MUnit.ODR_C, bellbits);
+		return IRQ_HANDLED;
+	}
+	return IRQ_NONE;
+}
+
+/**
+ *	aac_src_disable_interrupt	-	Disable interrupts
+ *	@dev: Adapter
+ */
+
+static void aac_src_disable_interrupt(struct aac_dev *dev)
+{
+	src_writel(dev, MUnit.OIMR, dev->OIMR = 0xffffffff);
+}
+
+/**
+ *	aac_src_enable_interrupt_message	-	Enable interrupts
+ *	@dev: Adapter
+ */
+
+static void aac_src_enable_interrupt_message(struct aac_dev *dev)
+{
+	src_writel(dev, MUnit.OIMR, dev->OIMR = 0xfffffff8);
+}
+
+/**
+ *	src_sync_cmd	-	send a command and wait
+ *	@dev: Adapter
+ *	@command: Command to execute
+ *	@p1: first parameter
+ *	@ret: adapter status
+ *
+ *	This routine will send a synchronous command to the adapter and wait
+ *	for its	completion.
+ */
+
+static int src_sync_cmd(struct aac_dev *dev, u32 command,
+	u32 p1, u32 p2, u32 p3, u32 p4, u32 p5, u32 p6,
+	u32 *status, u32 * r1, u32 * r2, u32 * r3, u32 * r4)
+{
+	unsigned long start;
+	int ok;
+
+	/*
+	 *	Write the command into Mailbox 0
+	 */
+	writel(command, &dev->IndexRegs->Mailbox[0]);
+	/*
+	 *	Write the parameters into Mailboxes 1 - 6
+	 */
+	writel(p1, &dev->IndexRegs->Mailbox[1]);
+	writel(p2, &dev->IndexRegs->Mailbox[2]);
+	writel(p3, &dev->IndexRegs->Mailbox[3]);
+	writel(p4, &dev->IndexRegs->Mailbox[4]);
+
+	/*
+	 *	Clear the synch command doorbell to start on a clean slate.
+	 */
+	src_writel(dev, MUnit.ODR_C, OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT);
+
+	/*
+	 *	Disable doorbell interrupts
+	 */
+	src_writel(dev, MUnit.OIMR, dev->OIMR = 0xffffffff);
+
+	/*
+	 *	Force the completion of the mask register write before issuing
+	 *	the interrupt.
+	 */
+	src_readl(dev, MUnit.OIMR);
+
+	/*
+	 *	Signal that there is a new synch command
+	 */
+	src_writel(dev, MUnit.IDR, INBOUNDDOORBELL_0 << SRC_IDR_SHIFT);
+
+	ok = 0;
+	start = jiffies;
+
+	/*
+	 *	Wait up to 30 seconds
+	 */
+	while (time_before(jiffies, start+30*HZ)) {
+		/* Delay 5 microseconds to let Mon960 get info. */
+		udelay(5);
+
+		/* Mon960 will set doorbell0 bit
+		 * when it has completed the command
+		 */
+		if ((src_readl(dev, MUnit.ODR_R) >> SRC_ODR_SHIFT) & OUTBOUNDDOORBELL_0) {
+			/* Clear the doorbell */
+			src_writel(dev,
+				MUnit.ODR_C,
+				OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT);
+			ok = 1;
+			break;
+		}
+
+		 /* Yield the processor in case we are slow */
+		msleep(1);
+	}
+	if (unlikely(ok != 1)) {
+		 /* Restore interrupt mask even though we timed out */
+		aac_adapter_enable_int(dev);
+		return -ETIMEDOUT;
+	}
+
+	 /* Pull the synch status from Mailbox 0 */
+	if (status)
+		*status = readl(&dev->IndexRegs->Mailbox[0]);
+	if (r1)
+		*r1 = readl(&dev->IndexRegs->Mailbox[1]);
+	if (r2)
+		*r2 = readl(&dev->IndexRegs->Mailbox[2]);
+	if (r3)
+		*r3 = readl(&dev->IndexRegs->Mailbox[3]);
+	if (r4)
+		*r4 = readl(&dev->IndexRegs->Mailbox[4]);
+
+	 /* Clear the synch command doorbell */
+	src_writel(dev, MUnit.ODR_C, OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT);
+
+	 /* Restore interrupt mask */
+	aac_adapter_enable_int(dev);
+	return 0;
+
+}
+
+/**
+ *	aac_src_interrupt_adapter	-	interrupt adapter
+ *	@dev: Adapter
+ *
+ *	Send an interrupt to the i960 and breakpoint it.
+ */
+
+static void aac_src_interrupt_adapter(struct aac_dev *dev)
+{
+	src_sync_cmd(dev, BREAKPOINT_REQUEST,
+		0, 0, 0, 0, 0, 0,
+		NULL, NULL, NULL, NULL, NULL);
+}
+
+/**
+ *	aac_src_notify_adapter		-	send an event to the adapter
+ *	@dev: Adapter
+ *	@event: Event to send
+ *
+ *	Notify the i960 that something it probably cares about has
+ *	happened.
+ */
+
+static void aac_src_notify_adapter(struct aac_dev *dev, u32 event)
+{
+	switch (event) {
+
+	case AdapNormCmdQue:
+		src_writel(dev, MUnit.ODR_C,
+			INBOUNDDOORBELL_1 << SRC_ODR_SHIFT);
+		break;
+	case HostNormRespNotFull:
+		src_writel(dev, MUnit.ODR_C,
+			INBOUNDDOORBELL_4 << SRC_ODR_SHIFT);
+		break;
+	case AdapNormRespQue:
+		src_writel(dev, MUnit.ODR_C,
+			INBOUNDDOORBELL_2 << SRC_ODR_SHIFT);
+		break;
+	case HostNormCmdNotFull:
+		src_writel(dev, MUnit.ODR_C,
+			INBOUNDDOORBELL_3 << SRC_ODR_SHIFT);
+		break;
+	case FastIo:
+		src_writel(dev, MUnit.ODR_C,
+			INBOUNDDOORBELL_6 << SRC_ODR_SHIFT);
+		break;
+	case AdapPrintfDone:
+		src_writel(dev, MUnit.ODR_C,
+			INBOUNDDOORBELL_5 << SRC_ODR_SHIFT);
+		break;
+	default:
+		BUG();
+		break;
+	}
+}
+
+/**
+ *	aac_src_start_adapter		-	activate adapter
+ *	@dev:	Adapter
+ *
+ *	Start up processing on an i960 based AAC adapter
+ */
+
+static void aac_src_start_adapter(struct aac_dev *dev)
+{
+	struct aac_init *init;
+
+	init = dev->init;
+	init->HostElapsedSeconds = cpu_to_le32(get_seconds());
+
+	/* We can only use a 32 bit address here */
+	src_sync_cmd(dev, INIT_STRUCT_BASE_ADDRESS, (u32)(ulong)dev->init_pa,
+	  0, 0, 0, 0, 0, NULL, NULL, NULL, NULL, NULL);
+}
+
+/**
+ *	aac_src_check_health
+ *	@dev: device to check if healthy
+ *
+ *	Will attempt to determine if the specified adapter is alive and
+ *	capable of handling requests, returning 0 if alive.
+ */
+static int aac_src_check_health(struct aac_dev *dev)
+{
+	u32 status = src_readl(dev, MUnit.OMR);
+
+	/*
+	 *	Check to see if the board failed any self tests.
+	 */
+	if (unlikely(status & SELF_TEST_FAILED))
+		return -1;
+
+	/*
+	 *	Check to see if the board panic'd.
+	 */
+	if (unlikely(status & KERNEL_PANIC))
+		return (status >> 16) & 0xFF;
+	/*
+	 *	Wait for the adapter to be up and running.
+	 */
+	if (unlikely(!(status & KERNEL_UP_AND_RUNNING)))
+		return -3;
+	/*
+	 *	Everything is OK
+	 */
+	return 0;
+}
+
+/**
+ *	aac_src_deliver_message
+ *	@fib: fib to issue
+ *
+ *	Will send a fib, returning 0 if successful.
+ */
+static int aac_src_deliver_message(struct fib *fib)
+{
+	struct aac_dev *dev = fib->dev;
+	struct aac_queue *q = &dev->queues->queue[AdapNormCmdQueue];
+	unsigned long qflags;
+	u32 fibsize;
+	u64 address;
+	struct aac_fib_xporthdr *pFibX;
+
+	spin_lock_irqsave(q->lock, qflags);
+	q->numpending++;
+	spin_unlock_irqrestore(q->lock, qflags);
+
+	/* Calculate the amount to the fibsize bits */
+	fibsize = (sizeof(struct aac_fib_xporthdr) +
+		fib->hw_fib_va->header.Size + 127) / 128 - 1;
+	if (fibsize > (ALIGN32 - 1))
+		fibsize = ALIGN32 - 1;
+
+    /* Fill XPORT header */
+	pFibX = (struct aac_fib_xporthdr *)
+		((unsigned char *)fib->hw_fib_va -
+		sizeof(struct aac_fib_xporthdr));
+	pFibX->Handle = fib->hw_fib_va->header.SenderData + 1;
+	pFibX->HostAddress = fib->hw_fib_pa;
+	pFibX->Size = fib->hw_fib_va->header.Size;
+	address = fib->hw_fib_pa - (u64)sizeof(struct aac_fib_xporthdr);
+
+	src_writel(dev, MUnit.IQ_H, (u32)(address >> 32));
+	src_writel(dev, MUnit.IQ_L, (u32)(address & 0xffffffff) + fibsize);
+	return 0;
+}
+
+/**
+ *	aac_src_ioremap
+ *	@size: mapping resize request
+ *
+ */
+static int aac_src_ioremap(struct aac_dev *dev, u32 size)
+{
+	if (!size) {
+		iounmap(dev->regs.src.bar0);
+		dev->regs.src.bar0 = NULL;
+		iounmap(dev->base);
+		dev->base = NULL;
+		return 0;
+	}
+	dev->regs.src.bar1 = ioremap(pci_resource_start(dev->pdev, 2),
+		AAC_MIN_SRC_BAR1_SIZE);
+	dev->base = NULL;
+	if (dev->regs.src.bar1 == NULL)
+		return -1;
+	dev->base = dev->regs.src.bar0 = ioremap(dev->scsi_host_ptr->base,
+				size);
+	if (dev->base == NULL) {
+		iounmap(dev->regs.src.bar1);
+		dev->regs.src.bar1 = NULL;
+		return -1;
+	}
+	dev->IndexRegs = &((struct src_registers __iomem *)
+		dev->base)->IndexRegs;
+	return 0;
+}
+
+static int aac_src_restart_adapter(struct aac_dev *dev, int bled)
+{
+	u32 var, reset_mask;
+
+	if (bled >= 0) {
+		if (bled)
+			printk(KERN_ERR "%s%d: adapter kernel panic'd %x.\n",
+				dev->name, dev->id, bled);
+		bled = aac_adapter_sync_cmd(dev, IOP_RESET_ALWAYS,
+			0, 0, 0, 0, 0, 0, &var, &reset_mask, NULL, NULL, NULL);
+			if (bled || (var != 0x00000001))
+				bled = -EINVAL;
+		if (dev->supplement_adapter_info.SupportedOptions2 &
+			AAC_OPTION_DOORBELL_RESET) {
+			src_writel(dev, MUnit.IDR, reset_mask);
+			msleep(5000); /* Delay 5 seconds */
+		}
+	}
+
+	if (src_readl(dev, MUnit.OMR) & KERNEL_PANIC)
+		return -ENODEV;
+
+	if (startup_timeout < 300)
+		startup_timeout = 300;
+
+	return 0;
+}
+
+/**
+ *	aac_src_select_comm	-	Select communications method
+ *	@dev: Adapter
+ *	@comm: communications method
+ */
+int aac_src_select_comm(struct aac_dev *dev, int comm)
+{
+	switch (comm) {
+	case AAC_COMM_MESSAGE:
+		dev->a_ops.adapter_enable_int = aac_src_enable_interrupt_message;
+		dev->a_ops.adapter_intr = aac_src_intr_message;
+		dev->a_ops.adapter_deliver = aac_src_deliver_message;
+		break;
+	default:
+		return 1;
+	}
+	return 0;
+}
+
+/**
+ *  aac_src_init	-	initialize an Cardinal Frey Bar card
+ *  @dev: device to configure
+ *
+ */
+
+int aac_src_init(struct aac_dev *dev)
+{
+	unsigned long start;
+	unsigned long status;
+	int restart = 0;
+	int instance = dev->id;
+	const char *name = dev->name;
+
+	dev->a_ops.adapter_ioremap = aac_src_ioremap;
+	dev->a_ops.adapter_comm = aac_src_select_comm;
+
+	dev->base_size = AAC_MIN_SRC_BAR0_SIZE;
+	if (aac_adapter_ioremap(dev, dev->base_size)) {
+		printk(KERN_WARNING "%s: unable to map adapter.\n", name);
+		goto error_iounmap;
+	}
+
+	/* Failure to reset here is an option ... */
+	dev->a_ops.adapter_sync_cmd = src_sync_cmd;
+	dev->a_ops.adapter_enable_int = aac_src_disable_interrupt;
+	if ((aac_reset_devices || reset_devices) &&
+		!aac_src_restart_adapter(dev, 0))
+		++restart;
+	/*
+	 *	Check to see if the board panic'd while booting.
+	 */
+	status = src_readl(dev, MUnit.OMR);
+	if (status & KERNEL_PANIC) {
+		if (aac_src_restart_adapter(dev, aac_src_check_health(dev)))
+			goto error_iounmap;
+		++restart;
+	}
+	/*
+	 *	Check to see if the board failed any self tests.
+	 */
+	status = src_readl(dev, MUnit.OMR);
+	if (status & SELF_TEST_FAILED) {
+		printk(KERN_ERR "%s%d: adapter self-test failed.\n",
+			dev->name, instance);
+		goto error_iounmap;
+	}
+	/*
+	 *	Check to see if the monitor panic'd while booting.
+	 */
+	if (status & MONITOR_PANIC) {
+		printk(KERN_ERR "%s%d: adapter monitor panic.\n",
+			dev->name, instance);
+		goto error_iounmap;
+	}
+	start = jiffies;
+	/*
+	 *	Wait for the adapter to be up and running. Wait up to 3 minutes
+	 */
+	while (!((status = src_readl(dev, MUnit.OMR)) &
+		KERNEL_UP_AND_RUNNING)) {
+		if ((restart &&
+		  (status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC))) ||
+		  time_after(jiffies, start+HZ*startup_timeout)) {
+			printk(KERN_ERR "%s%d: adapter kernel failed to start, init status = %lx.\n",
+					dev->name, instance, status);
+			goto error_iounmap;
+		}
+		if (!restart &&
+		  ((status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC)) ||
+		  time_after(jiffies, start + HZ *
+		  ((startup_timeout > 60)
+		    ? (startup_timeout - 60)
+		    : (startup_timeout / 2))))) {
+			if (likely(!aac_src_restart_adapter(dev,
+			    aac_src_check_health(dev))))
+				start = jiffies;
+			++restart;
+		}
+		msleep(1);
+	}
+	if (restart && aac_commit)
+		aac_commit = 1;
+	/*
+	 *	Fill in the common function dispatch table.
+	 */
+	dev->a_ops.adapter_interrupt = aac_src_interrupt_adapter;
+	dev->a_ops.adapter_disable_int = aac_src_disable_interrupt;
+	dev->a_ops.adapter_notify = aac_src_notify_adapter;
+	dev->a_ops.adapter_sync_cmd = src_sync_cmd;
+	dev->a_ops.adapter_check_health = aac_src_check_health;
+	dev->a_ops.adapter_restart = aac_src_restart_adapter;
+
+	/*
+	 *	First clear out all interrupts.  Then enable the one's that we
+	 *	can handle.
+	 */
+	aac_adapter_comm(dev, AAC_COMM_MESSAGE);
+	aac_adapter_disable_int(dev);
+	src_writel(dev, MUnit.ODR_C, 0xffffffff);
+	aac_adapter_enable_int(dev);
+
+	if (aac_init_adapter(dev) == NULL)
+		goto error_iounmap;
+	if (dev->comm_interface != AAC_COMM_MESSAGE_TYPE1)
+		goto error_iounmap;
+
+	dev->msi = aac_msi && !pci_enable_msi(dev->pdev);
+
+	if (request_irq(dev->pdev->irq, dev->a_ops.adapter_intr,
+			IRQF_SHARED|IRQF_DISABLED, "aacraid", dev) < 0) {
+
+		if (dev->msi)
+			pci_disable_msi(dev->pdev);
+
+		printk(KERN_ERR "%s%d: Interrupt unavailable.\n",
+			name, instance);
+		goto error_iounmap;
+	}
+	dev->dbg_base = pci_resource_start(dev->pdev, 2);
+	dev->dbg_base_mapped = dev->regs.src.bar1;
+	dev->dbg_size = AAC_MIN_SRC_BAR1_SIZE;
+
+	aac_adapter_enable_int(dev);
+	/*
+	 *	Tell the adapter that all is configured, and it can
+	 * start accepting requests
+	 */
+	aac_src_start_adapter(dev);
+
+	return 0;
+
+error_iounmap:
+
+	return -1;
+}
diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c
index 081c6de92bc5..bfd618a69499 100644
--- a/drivers/scsi/advansys.c
+++ b/drivers/scsi/advansys.c
@@ -4544,7 +4544,7 @@ AscMemWordCopyPtrToLram(PortAddr iop_base, ushort s_addr,
  * Copy 4 bytes to LRAM.
  *
  * The source data is assumed to be in little-endian order in memory
- * and is maintained in little-endian order when writen to LRAM.
+ * and is maintained in little-endian order when written to LRAM.
  */
 static void
 AscMemDWordCopyPtrToLram(PortAddr iop_base,
diff --git a/drivers/scsi/aha1740.c b/drivers/scsi/aha1740.c
index d058f1ab82b5..1c10b796c1a2 100644
--- a/drivers/scsi/aha1740.c
+++ b/drivers/scsi/aha1740.c
@@ -461,7 +461,7 @@ static int aha1740_queuecommand_lck(Scsi_Cmnd * SCpnt, void (*done)(Scsi_Cmnd *)
 	/* The Adaptec Spec says the card is so fast that the loops
            will only be executed once in the code below. Even if this
            was true with the fastest processors when the spec was
-           written, it doesn't seem to be true with todays fast
+           written, it doesn't seem to be true with today's fast
            processors. We print a warning if the code is executed more
            often than LOOPCNT_WARN. If this happens, it should be
            investigated. If the count reaches LOOPCNT_MAX, we assume
diff --git a/drivers/scsi/aic7xxx/aic79xx.h b/drivers/scsi/aic7xxx/aic79xx.h
index 95ee50385188..9b059422aacb 100644
--- a/drivers/scsi/aic7xxx/aic79xx.h
+++ b/drivers/scsi/aic7xxx/aic79xx.h
@@ -473,7 +473,7 @@ struct hardware_scb {
  *	o A residual has occurred if SG_FULL_RESID is set in sgptr,
  *	  or residual_sgptr does not have SG_LIST_NULL set.
  *
- *	o We are transfering the last segment if residual_datacnt has
+ *	o We are transferring the last segment if residual_datacnt has
  *	  the SG_LAST_SEG flag set.
  *
  * Host:
@@ -516,7 +516,7 @@ struct hardware_scb {
  */
 
 /*
- * Definition of a scatter/gather element as transfered to the controller.
+ * Definition of a scatter/gather element as transferred to the controller.
  * The aic7xxx chips only support a 24bit length.  We use the top byte of
  * the length to store additional address bits and a flag to indicate
  * that a given segment terminates the transfer.  This gives us an
diff --git a/drivers/scsi/aic7xxx/aic79xx.reg b/drivers/scsi/aic7xxx/aic79xx.reg
index 0666c22ab55b..7e12c31ccfda 100644
--- a/drivers/scsi/aic7xxx/aic79xx.reg
+++ b/drivers/scsi/aic7xxx/aic79xx.reg
@@ -305,7 +305,7 @@ register HS_MAILBOX {
 }
 
 /*
- * Sequencer Interupt Status
+ * Sequencer Interrupt Status
  */
 register SEQINTSTAT {
 	address			0x00C
@@ -685,7 +685,7 @@ register DCHRXMSG0 {
 }
 
 /*
- * CMC Recieve Message 0
+ * CMC Receive Message 0
  */
 register CMCRXMSG0 {
 	address			0x090
@@ -696,7 +696,7 @@ register CMCRXMSG0 {
 }
 
 /*
- * Overlay Recieve Message 0
+ * Overlay Receive Message 0
  */
 register OVLYRXMSG0 {
 	address			0x090
@@ -732,7 +732,7 @@ register DCHRXMSG1 {
 }
 
 /*
- * CMC Recieve Message 1
+ * CMC Receive Message 1
  */
 register CMCRXMSG1 {
 	address			0x091
@@ -742,7 +742,7 @@ register CMCRXMSG1 {
 }
 
 /*
- * Overlay Recieve Message 1
+ * Overlay Receive Message 1
  */
 register OVLYRXMSG1 {
 	address			0x091
@@ -777,7 +777,7 @@ register DCHRXMSG2 {
 }
 
 /*
- * CMC Recieve Message 2
+ * CMC Receive Message 2
  */
 register CMCRXMSG2 {
 	address			0x092
@@ -787,7 +787,7 @@ register CMCRXMSG2 {
 }
 
 /*
- * Overlay Recieve Message 2
+ * Overlay Receive Message 2
  */
 register OVLYRXMSG2 {
 	address			0x092
@@ -816,7 +816,7 @@ register DCHRXMSG3 {
 }
 
 /*
- * CMC Recieve Message 3
+ * CMC Receive Message 3
  */
 register CMCRXMSG3 {
 	address			0x093
@@ -826,7 +826,7 @@ register CMCRXMSG3 {
 }
 
 /*
- * Overlay Recieve Message 3
+ * Overlay Receive Message 3
  */
 register OVLYRXMSG3 {
 	address			0x093
@@ -1249,7 +1249,7 @@ register TARGPCISTAT {
 
 /*
  * LQ Packet In
- * The last LQ Packet recieved
+ * The last LQ Packet received
  */
 register LQIN {
 	address			0x020
@@ -2573,7 +2573,7 @@ register IOPDNCTL {
 }
 
 /*
- * Shaddow Host Address.
+ * Shadow Host Address.
  */
 register SHADDR {
 	address			0x060
@@ -3983,7 +3983,7 @@ scratch_ram {
 
 	/*
 	 * The maximum amount of time to wait, when interrupt coalescing
-	 * is enabled, before issueing a CMDCMPLT interrupt for a completed
+	 * is enabled, before issuing a CMDCMPLT interrupt for a completed
 	 * command.
 	 */
 	INT_COALESCING_TIMER {
diff --git a/drivers/scsi/aic7xxx/aic79xx.seq b/drivers/scsi/aic7xxx/aic79xx.seq
index 2fb78e35a9e5..3a36d9362a10 100644
--- a/drivers/scsi/aic7xxx/aic79xx.seq
+++ b/drivers/scsi/aic7xxx/aic79xx.seq
@@ -567,7 +567,7 @@ BEGIN_CRITICAL;
 	shr	SELOID, 4, SCB_SCSIID;
 	/*
 	 * If we want to send a message to the device, ensure
-	 * we are selecting with atn irregardless of our packetized
+	 * we are selecting with atn regardless of our packetized
 	 * agreement.  Since SPI4 only allows target reset or PPR
 	 * messages if this is a packetized connection, the change
 	 * to our negotiation table entry for this selection will
@@ -960,7 +960,7 @@ p_status_okay:
  * This is done to allow the host to send messages outside of an identify
  * sequence while protecting the seqencer from testing the MK_MESSAGE bit
  * on an SCB that might not be for the current nexus. (For example, a
- * BDR message in responce to a bad reselection would leave us pointed to
+ * BDR message in response to a bad reselection would leave us pointed to
  * an SCB that doesn't have anything to do with the current target).
  *
  * Otherwise, treat MSG_OUT as a 1 byte message to send (abort, abort tag,
@@ -1507,7 +1507,7 @@ service_fifo:
 		 * If the other FIFO needs loading, then it
 		 * must not have claimed the S/G cache yet
 		 * (SG_CACHE_AVAIL would have been cleared in
-		 * the orginal FIFO mode and we test this above).
+		 * the original FIFO mode and we test this above).
 		 * Return to the idle loop so we can process the
 		 * FIFO not currently on the bus first.
 		 */
@@ -1521,7 +1521,7 @@ idle_sgfetch_okay:
 idle_sgfetch_start:
 	/*
 	 * We fetch a "cacheline aligned" and sized amount of data
-	 * so we don't end up referencing a non-existant page.
+	 * so we don't end up referencing a non-existent page.
 	 * Cacheline aligned is in quotes because the kernel will
 	 * set the prefetch amount to a reasonable level if the
 	 * cacheline size is unknown.
@@ -1551,7 +1551,7 @@ idle_sg_avail:
 	test	DFSTATUS, PRELOAD_AVAIL jz return;
 	/*
 	 * On the A, preloading a segment before HDMAENACK
-	 * comes true can clobber the shaddow address of the
+	 * comes true can clobber the shadow address of the
 	 * first segment in the S/G FIFO.  Wait until it is
 	 * safe to proceed.
 	 */
@@ -2004,10 +2004,10 @@ pkt_handle_xfer:
 	 * Defer handling of this NONPACKREQ until we
 	 * can be sure it pertains to this FIFO.  SAVEPTRS
 	 * will not be asserted if the NONPACKREQ is for us,
-	 * so we must simulate it if shaddow is valid.  If
-	 * shaddow is not valid, keep running this FIFO until we
+	 * so we must simulate it if shadow is valid.  If
+	 * shadow is not valid, keep running this FIFO until we
 	 * have satisfied the transfer by loading segments and
-	 * waiting for either shaddow valid or last_seg_done.
+	 * waiting for either shadow valid or last_seg_done.
 	 */
 	test	MDFFSTAT, SHVALID jnz pkt_saveptrs;
 pkt_service_fifo:
@@ -2171,7 +2171,7 @@ pkt_status_check_nonpackreq:
 	/*
 	 * The unexpected nonpkt phase handler assumes that any
 	 * data channel use will have a FIFO reference count.  It
-	 * turns out that the status handler doesn't need a refernce
+	 * turns out that the status handler doesn't need a references
 	 * count since the status received flag, and thus completion
 	 * processing, cannot be set until the handler is finished.
 	 * We increment the count here to make the nonpkt handler
diff --git a/drivers/scsi/aic7xxx/aic79xx_core.c b/drivers/scsi/aic7xxx/aic79xx_core.c
index 3233bf564435..5f8617dd43bb 100644
--- a/drivers/scsi/aic7xxx/aic79xx_core.c
+++ b/drivers/scsi/aic7xxx/aic79xx_core.c
@@ -562,7 +562,7 @@ ahd_targetcmd_offset(struct ahd_softc *ahd, u_int index)
 }
 #endif
 
-/*********************** Miscelaneous Support Functions ***********************/
+/*********************** Miscellaneous Support Functions ***********************/
 /*
  * Return pointers to the transfer negotiation information
  * for the specified our_id/remote_id pair.
@@ -599,7 +599,7 @@ void
 ahd_outw(struct ahd_softc *ahd, u_int port, u_int value)
 {
 	/*
-	 * Write low byte first to accomodate registers
+	 * Write low byte first to accommodate registers
 	 * such as PRGMCNT where the order maters.
 	 */
 	ahd_outb(ahd, port, value & 0xFF);
@@ -2067,7 +2067,7 @@ ahd_handle_seqint(struct ahd_softc *ahd, u_int intstat)
 		 * that requires host assistance for completion.
 		 * While handling the message phase(s), we will be
 		 * notified by the sequencer after each byte is
-		 * transfered so we can track bus phase changes.
+		 * transferred so we can track bus phase changes.
 		 *
 		 * If this is the first time we've seen a HOST_MSG_LOOP
 		 * interrupt, initialize the state of the host message
@@ -2487,7 +2487,7 @@ ahd_handle_scsiint(struct ahd_softc *ahd, u_int intstat)
 		/*
 		 * Although the driver does not care about the
 		 * 'Selection in Progress' status bit, the busy
-		 * LED does.  SELINGO is only cleared by a successfull
+		 * LED does.  SELINGO is only cleared by a successful
 		 * selection, so we must manually clear it to insure
 		 * the LED turns off just incase no future successful
 		 * selections occur (e.g. no devices on the bus).
@@ -3548,7 +3548,7 @@ ahd_clear_critical_section(struct ahd_softc *ahd)
 		ahd_outb(ahd, SEQCTL0, ahd_inb(ahd, SEQCTL0) & ~STEP);
   		ahd_outb(ahd, SIMODE1, simode1);
 		/*
-		 * SCSIINT seems to glitch occassionally when
+		 * SCSIINT seems to glitch occasionally when
 		 * the interrupt masks are restored.  Clear SCSIINT
 		 * one more time so that only persistent errors
 		 * are seen as a real interrupt.
@@ -3838,7 +3838,7 @@ ahd_validate_width(struct ahd_softc *ahd, struct ahd_initiator_tinfo *tinfo,
 
 /*
  * Update the bitmask of targets for which the controller should
- * negotiate with at the next convenient oportunity.  This currently
+ * negotiate with at the next convenient opportunity.  This currently
  * means the next time we send the initial identify messages for
  * a new transaction.
  */
@@ -4200,7 +4200,7 @@ ahd_update_neg_table(struct ahd_softc *ahd, struct ahd_devinfo *devinfo,
 
 	/*
 	 * During packetized transfers, the target will
-	 * give us the oportunity to send command packets
+	 * give us the opportunity to send command packets
 	 * without us asserting attention.
 	 */
 	if ((tinfo->ppr_options & MSG_EXT_PPR_IU_REQ) == 0)
@@ -5651,7 +5651,7 @@ ahd_handle_msg_reject(struct ahd_softc *ahd, struct ahd_devinfo *devinfo)
 
 		/*
 		 * Requeue all tagged commands for this target
-		 * currently in our posession so they can be
+		 * currently in our possession so they can be
 		 * converted to untagged commands.
 		 */
 		ahd_search_qinfifo(ahd, SCB_GET_TARGET(ahd, scb),
@@ -6245,7 +6245,7 @@ ahd_shutdown(void *arg)
 /*
  * Reset the controller and record some information about it
  * that is only available just after a reset.  If "reinit" is
- * non-zero, this reset occured after initial configuration
+ * non-zero, this reset occurred after initial configuration
  * and the caller requests that the chip be fully reinitialized
  * to a runable state.  Chip interrupts are *not* enabled after
  * a reinitialization.  The caller must enable interrupts via
@@ -6495,7 +6495,7 @@ ahd_init_scbdata(struct ahd_softc *ahd)
 	}
 
 	/*
-	 * Note that we were successfull
+	 * Note that we were successful
 	 */
 	return (0); 
 
@@ -7079,7 +7079,7 @@ ahd_init(struct ahd_softc *ahd)
 		return (ENOMEM);
 
 	/*
-	 * Verify that the compiler hasn't over-agressively
+	 * Verify that the compiler hasn't over-aggressively
 	 * padded important structures.
 	 */
 	if (sizeof(struct hardware_scb) != 64)
@@ -10087,7 +10087,7 @@ ahd_write_seeprom(struct ahd_softc *ahd, uint16_t *buf,
 		return (error);
 
 	/*
-	 * Write the data.  If we don't get throught the loop at
+	 * Write the data.  If we don't get through the loop at
 	 * least once, the arguments were invalid.
 	 */
 	retval = EINVAL;
diff --git a/drivers/scsi/aic7xxx/aic79xx_osm.c b/drivers/scsi/aic7xxx/aic79xx_osm.c
index 25d066624476..7d48700257a7 100644
--- a/drivers/scsi/aic7xxx/aic79xx_osm.c
+++ b/drivers/scsi/aic7xxx/aic79xx_osm.c
@@ -1441,7 +1441,7 @@ ahd_platform_set_tags(struct ahd_softc *ahd, struct scsi_device *sdev,
 		usertags = ahd_linux_user_tagdepth(ahd, devinfo);
 		if (!was_queuing) {
 			/*
-			 * Start out agressively and allow our
+			 * Start out aggressively and allow our
 			 * dynamic queue depth algorithm to take
 			 * care of the rest.
 			 */
diff --git a/drivers/scsi/aic7xxx/aic7xxx.h b/drivers/scsi/aic7xxx/aic7xxx.h
index 17444bc18bca..f695774645c1 100644
--- a/drivers/scsi/aic7xxx/aic7xxx.h
+++ b/drivers/scsi/aic7xxx/aic7xxx.h
@@ -440,7 +440,7 @@ struct hardware_scb {
  *	o A residual has occurred if SG_FULL_RESID is set in sgptr,
  *	  or residual_sgptr does not have SG_LIST_NULL set.
  *
- *	o We are transfering the last segment if residual_datacnt has
+ *	o We are transferring the last segment if residual_datacnt has
  *	  the SG_LAST_SEG flag set.
  *
  * Host:
@@ -494,7 +494,7 @@ struct hardware_scb {
  */
 
 /*
- * Definition of a scatter/gather element as transfered to the controller.
+ * Definition of a scatter/gather element as transferred to the controller.
  * The aic7xxx chips only support a 24bit length.  We use the top byte of
  * the length to store additional address bits and a flag to indicate
  * that a given segment terminates the transfer.  This gives us an
diff --git a/drivers/scsi/aic7xxx/aic7xxx.reg b/drivers/scsi/aic7xxx/aic7xxx.reg
index 9a96e55da39a..ba0b411d03e2 100644
--- a/drivers/scsi/aic7xxx/aic7xxx.reg
+++ b/drivers/scsi/aic7xxx/aic7xxx.reg
@@ -351,7 +351,7 @@ register SSTAT2 {
 	address			0x00d
 	access_mode RO
 	field	OVERRUN		0x80
-	field	SHVALID		0x40	/* Shaddow Layer non-zero */
+	field	SHVALID		0x40	/* Shadow Layer non-zero */
 	field	EXP_ACTIVE	0x10	/* SCSI Expander Active */
 	field	CRCVALERR	0x08	/* CRC doesn't match (U3 only) */
 	field	CRCENDERR	0x04	/* No terminal CRC packet (U3 only) */
diff --git a/drivers/scsi/aic7xxx/aic7xxx.seq b/drivers/scsi/aic7xxx/aic7xxx.seq
index 5a4cfc954a9f..e60041e8f2d1 100644
--- a/drivers/scsi/aic7xxx/aic7xxx.seq
+++ b/drivers/scsi/aic7xxx/aic7xxx.seq
@@ -57,10 +57,10 @@ PREFIX = "ahc_"
  * a later time.  This problem cannot be resolved by holding a single entry
  * in scratch ram since a reconnecting target can request sense and this will
  * create yet another SCB waiting for selection.  The solution used here is to 
- * use byte 27 of the SCB as a psuedo-next pointer and to thread a list
+ * use byte 27 of the SCB as a pseudo-next pointer and to thread a list
  * of SCBs that are awaiting selection.  Since 0-0xfe are valid SCB indexes, 
  * SCB_LIST_NULL is 0xff which is out of range.  An entry is also added to
- * this list everytime a request sense occurs or after completing a non-tagged
+ * this list every time a request sense occurs or after completing a non-tagged
  * command for which a second SCB has been queued.  The sequencer will
  * automatically consume the entries.
  */
@@ -752,7 +752,7 @@ idle_loop:
 
 	/*
 	 * We fetch a "cacheline aligned" and sized amount of data
-	 * so we don't end up referencing a non-existant page.
+	 * so we don't end up referencing a non-existent page.
 	 * Cacheline aligned is in quotes because the kernel will
 	 * set the prefetch amount to a reasonable level if the
 	 * cacheline size is unknown.
@@ -1485,7 +1485,7 @@ p_status_okay:
  * This is done to allow the host to send messages outside of an identify
  * sequence while protecting the seqencer from testing the MK_MESSAGE bit
  * on an SCB that might not be for the current nexus. (For example, a
- * BDR message in responce to a bad reselection would leave us pointed to
+ * BDR message in response to a bad reselection would leave us pointed to
  * an SCB that doesn't have anything to do with the current target).
  *
  * Otherwise, treat MSG_OUT as a 1 byte message to send (abort, abort tag,
@@ -1999,7 +1999,7 @@ if ((ahc->flags & AHC_TARGETROLE) != 0) {
  * from out to in, wait an additional data release delay before continuing.
  */
 change_phase:
-	/* Wait for preceeding I/O session to complete. */
+	/* Wait for preceding I/O session to complete. */
 	test	SCSISIGI, ACKI jnz .;
 
 	/* Change the phase */
diff --git a/drivers/scsi/aic7xxx/aic7xxx_core.c b/drivers/scsi/aic7xxx/aic7xxx_core.c
index e021b4812d58..dc28b0a91b22 100644
--- a/drivers/scsi/aic7xxx/aic7xxx_core.c
+++ b/drivers/scsi/aic7xxx/aic7xxx_core.c
@@ -427,7 +427,7 @@ ahc_targetcmd_offset(struct ahc_softc *ahc, u_int index)
 }
 #endif
 
-/*********************** Miscelaneous Support Functions ***********************/
+/*********************** Miscellaneous Support Functions ***********************/
 /*
  * Determine whether the sequencer reported a residual
  * for this SCB/transaction.
@@ -1243,7 +1243,7 @@ ahc_handle_seqint(struct ahc_softc *ahc, u_int intstat)
 		 * that requires host assistance for completion.
 		 * While handling the message phase(s), we will be
 		 * notified by the sequencer after each byte is
-		 * transfered so we can track bus phase changes.
+		 * transferred so we can track bus phase changes.
 		 *
 		 * If this is the first time we've seen a HOST_MSG_LOOP
 		 * interrupt, initialize the state of the host message
@@ -1487,7 +1487,7 @@ ahc_handle_seqint(struct ahc_softc *ahc, u_int intstat)
 		       scbptr, ahc_inb(ahc, ARG_1),
 		       ahc->scb_data->hscbs[scbptr].tag);
 		ahc_dump_card_state(ahc);
-		panic("for saftey");
+		panic("for safety");
 		break;
 	}
 	case OUT_OF_RANGE:
@@ -1733,7 +1733,7 @@ ahc_handle_scsiint(struct ahc_softc *ahc, u_int intstat)
 		/*
 		 * Although the driver does not care about the
 		 * 'Selection in Progress' status bit, the busy
-		 * LED does.  SELINGO is only cleared by a successfull
+		 * LED does.  SELINGO is only cleared by a successful
 		 * selection, so we must manually clear it to insure
 		 * the LED turns off just incase no future successful
 		 * selections occur (e.g. no devices on the bus).
@@ -1943,7 +1943,7 @@ ahc_handle_scsiint(struct ahc_softc *ahc, u_int intstat)
 			if (lastphase != P_BUSFREE) {
 				/*
 				 * Renegotiate with this device at the
-				 * next oportunity just in case this busfree
+				 * next opportunity just in case this busfree
 				 * is due to a negotiation mismatch with the
 				 * device.
 				 */
@@ -2442,7 +2442,7 @@ ahc_validate_width(struct ahc_softc *ahc, struct ahc_initiator_tinfo *tinfo,
 
 /*
  * Update the bitmask of targets for which the controller should
- * negotiate with at the next convenient oportunity.  This currently
+ * negotiate with at the next convenient opportunity.  This currently
  * means the next time we send the initial identify messages for
  * a new transaction.
  */
@@ -4131,7 +4131,7 @@ ahc_handle_msg_reject(struct ahc_softc *ahc, struct ahc_devinfo *devinfo)
 
 		/*
 		 * Requeue all tagged commands for this target
-		 * currently in our posession so they can be
+		 * currently in our possession so they can be
 		 * converted to untagged commands.
 		 */
 		ahc_search_qinfifo(ahc, SCB_GET_TARGET(ahc, scb),
@@ -4581,7 +4581,7 @@ ahc_shutdown(void *arg)
 /*
  * Reset the controller and record some information about it
  * that is only available just after a reset.  If "reinit" is
- * non-zero, this reset occured after initial configuration
+ * non-zero, this reset occurred after initial configuration
  * and the caller requests that the chip be fully reinitialized
  * to a runable state.  Chip interrupts are *not* enabled after
  * a reinitialization.  The caller must enable interrupts via
@@ -4899,7 +4899,7 @@ ahc_init_scbdata(struct ahc_softc *ahc)
 	ahc->next_queued_scb = ahc_get_scb(ahc);
 
 	/*
-	 * Note that we were successfull
+	 * Note that we were successful
 	 */
 	return (0); 
 
diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm.c b/drivers/scsi/aic7xxx/aic7xxx_osm.c
index 4a359bb307c6..c6251bb4f438 100644
--- a/drivers/scsi/aic7xxx/aic7xxx_osm.c
+++ b/drivers/scsi/aic7xxx/aic7xxx_osm.c
@@ -294,7 +294,7 @@ static uint32_t aic7xxx_extended;
  * dubious at best.  To my knowledge, this option has never actually
  * solved a PCI parity problem, but on certain machines with broken PCI
  * chipset configurations where stray PCI transactions with bad parity are
- * the norm rather than the exception, the error messages can be overwelming.
+ * the norm rather than the exception, the error messages can be overwhelming.
  * It's included in the driver for completeness.
  *   0	   = Shut off PCI parity check
  *   non-0 = reverse polarity pci parity checking
@@ -1318,7 +1318,7 @@ ahc_platform_set_tags(struct ahc_softc *ahc, struct scsi_device *sdev,
 		usertags = ahc_linux_user_tagdepth(ahc, devinfo);
 		if (!was_queuing) {
 			/*
-			 * Start out agressively and allow our
+			 * Start out aggressively and allow our
 			 * dynamic queue depth algorithm to take
 			 * care of the rest.
 			 */
diff --git a/drivers/scsi/aic7xxx/aic7xxx_pci.c b/drivers/scsi/aic7xxx/aic7xxx_pci.c
index 2b11a4272364..6917b4f5ac9e 100644
--- a/drivers/scsi/aic7xxx/aic7xxx_pci.c
+++ b/drivers/scsi/aic7xxx/aic7xxx_pci.c
@@ -789,7 +789,7 @@ ahc_pci_config(struct ahc_softc *ahc, const struct ahc_pci_identity *entry)
 	ahc->bus_intr = ahc_pci_intr;
 	ahc->bus_chip_init = ahc_pci_chip_init;
 
-	/* Remeber how the card was setup in case there is no SEEPROM */
+	/* Remember how the card was setup in case there is no SEEPROM */
 	if ((ahc_inb(ahc, HCNTRL) & POWRDN) == 0) {
 		ahc_pause(ahc);
 		if ((ahc->features & AHC_ULTRA2) != 0)
@@ -860,7 +860,7 @@ ahc_pci_config(struct ahc_softc *ahc, const struct ahc_pci_identity *entry)
 	}
 
 	/*
-	 * We cannot perform ULTRA speeds without the presense
+	 * We cannot perform ULTRA speeds without the presence
 	 * of the external precision resistor.
 	 */
 	if ((ahc->features & AHC_ULTRA) != 0) {
@@ -969,7 +969,7 @@ ahc_pci_config(struct ahc_softc *ahc, const struct ahc_pci_identity *entry)
 }
 
 /*
- * Test for the presense of external sram in an
+ * Test for the presence of external sram in an
  * "unshared" configuration.
  */
 static int
diff --git a/drivers/scsi/aic7xxx/aicasm/aicasm_gram.y b/drivers/scsi/aic7xxx/aicasm/aicasm_gram.y
index e4064433842e..f1586a437906 100644
--- a/drivers/scsi/aic7xxx/aicasm/aicasm_gram.y
+++ b/drivers/scsi/aic7xxx/aicasm/aicasm_gram.y
@@ -803,7 +803,7 @@ macro_arglist:
 |	macro_arglist ',' T_ARG
 	{
 		if ($1 == 0) {
-			stop("Comma without preceeding argument in arg list",
+			stop("Comma without preceding argument in arg list",
 			     EX_DATAERR);
 			/* NOTREACHED */
 		}
@@ -1319,8 +1319,8 @@ code:
 ;
 
 	/*
-	 * This grammer differs from the one in the aic7xxx
-	 * reference manual since the grammer listed there is
+	 * This grammar differs from the one in the aic7xxx
+	 * reference manual since the grammar listed there is
 	 * ambiguous and causes a shift/reduce conflict.
 	 * It also seems more logical as the "immediate"
 	 * argument is listed as the second arg like the
@@ -1799,7 +1799,7 @@ format_3_instr(int opcode, symbol_ref_t *src,
 	instr = seq_alloc();
 	f3_instr = &instr->format.format3;
 	if (address->symbol == NULL) {
-		/* 'dot' referrence.  Use the current instruction pointer */
+		/* 'dot' reference.  Use the current instruction pointer */
 		addr = instruction_ptr + address->offset;
 	} else if (address->symbol->type == UNINITIALIZED) {
 		/* forward reference */
diff --git a/drivers/scsi/aic7xxx/aicasm/aicasm_macro_gram.y b/drivers/scsi/aic7xxx/aicasm/aicasm_macro_gram.y
index ff46aa6801bf..708326df0766 100644
--- a/drivers/scsi/aic7xxx/aicasm/aicasm_macro_gram.y
+++ b/drivers/scsi/aic7xxx/aicasm/aicasm_macro_gram.y
@@ -115,7 +115,7 @@ macro_arglist:
 |	macro_arglist ',' T_ARG
 	{
 		if ($1 == 0) {
-			stop("Comma without preceeding argument in arg list",
+			stop("Comma without preceding argument in arg list",
 			     EX_DATAERR);
 			/* NOTREACHED */
 		}
diff --git a/drivers/scsi/aic7xxx_old.c b/drivers/scsi/aic7xxx_old.c
index 4ff60a08df0f..5b212f0df898 100644
--- a/drivers/scsi/aic7xxx_old.c
+++ b/drivers/scsi/aic7xxx_old.c
@@ -905,7 +905,7 @@ struct aic_dev_data {
  * problems with architectures I can't test on (because I don't have one,
  * such as the Alpha based systems) which happen to give faults for
  * non-aligned memory accesses, care was taken to align this structure
- * in a way that gauranteed all accesses larger than 8 bits were aligned
+ * in a way that guaranteed all accesses larger than 8 bits were aligned
  * on the appropriate boundary.  It's also organized to try and be more
  * cache line efficient.  Be careful when changing this lest you might hurt
  * overall performance and bring down the wrath of the masses.
@@ -1180,7 +1180,7 @@ static int aic7xxx_pci_parity = 0;
  * the card's registers in a hex dump format tailored to each model of
  * controller.
  * 
- * NOTE: THE CONTROLLER IS LEFT IN AN UNUSEABLE STATE BY THIS OPTION.
+ * NOTE: THE CONTROLLER IS LEFT IN AN UNUSABLE STATE BY THIS OPTION.
  *       YOU CANNOT BOOT UP WITH THIS OPTION, IT IS FOR DEBUGGING PURPOSES
  *       ONLY
  */
@@ -3467,7 +3467,7 @@ aic7xxx_reset_current_bus(struct aic7xxx_host *p)
   /* Turn off the bus' current operations, after all, we shouldn't have any
    * valid commands left to cause a RSELI and SELO once we've tossed the
    * bus away with this reset, so we might as well shut down the sequencer
-   * until the bus is restarted as oppossed to saving the current settings
+   * until the bus is restarted as opposed to saving the current settings
    * and restoring them (which makes no sense to me). */
 
   /* Turn on the bus reset. */
@@ -4070,7 +4070,7 @@ aic7xxx_handle_seqint(struct aic7xxx_host *p, unsigned char intstat)
             aic_dev->max_q_depth = aic_dev->temp_q_depth = 1;
             /*
              * We set this command up as a bus device reset.  However, we have
-             * to clear the tag type as it's causing us problems.  We shouldnt
+             * to clear the tag type as it's causing us problems.  We shouldn't
              * have to worry about any other commands being active, since if
              * the device is refusing tagged commands, this should be the
              * first tagged command sent to the device, however, we do have
@@ -9748,7 +9748,7 @@ skip_pci_controller:
     }
 
     /*
-     * We are commited now, everything has been checked and this card
+     * We are committed now, everything has been checked and this card
      * has been found, now we just set it up
      */
 
@@ -9906,7 +9906,7 @@ skip_pci_controller:
    *  2: All PCI controllers with BIOS_ENABLED next, according to BIOS
    *     address, going from lowest to highest.
    *  3: Remaining VLB/EISA controllers going in slot order.
-   *  4: Remaining PCI controllers, going in PCI device order (reversable)
+   *  4: Remaining PCI controllers, going in PCI device order (reversible)
    */
 
   {
diff --git a/drivers/scsi/aic7xxx_old/aic7xxx.seq b/drivers/scsi/aic7xxx_old/aic7xxx.seq
index 1565be9ebd49..823ff2873229 100644
--- a/drivers/scsi/aic7xxx_old/aic7xxx.seq
+++ b/drivers/scsi/aic7xxx_old/aic7xxx.seq
@@ -51,7 +51,7 @@
  * use byte 27 of the SCB as a pseudo-next pointer and to thread a list
  * of SCBs that are awaiting selection.  Since 0-0xfe are valid SCB indexes, 
  * SCB_LIST_NULL is 0xff which is out of range.  An entry is also added to
- * this list everytime a request sense occurs or after completing a non-tagged
+ * this list every time a request sense occurs or after completing a non-tagged
  * command for which a second SCB has been queued.  The sequencer will
  * automatically consume the entries.
  */
@@ -696,7 +696,7 @@ p_status:
  * This is done to allow the hsot to send messages outside of an identify
  * sequence while protecting the seqencer from testing the MK_MESSAGE bit
  * on an SCB that might not be for the current nexus. (For example, a
- * BDR message in responce to a bad reselection would leave us pointed to
+ * BDR message in response to a bad reselection would leave us pointed to
  * an SCB that doesn't have anything to do with the current target).
  * Otherwise, treat MSG_OUT as a 1 byte message to send (abort, abort tag,
  * bus device reset).
@@ -716,8 +716,8 @@ p_mesgout_identify:
 	} else {
 		and	SINDEX,0x7,SCB_TCL;	/* lun */
 	}
-	and	A,DISCENB,SCB_CONTROL;	/* mask off disconnect privledge */
-	or	SINDEX,A;		/* or in disconnect privledge */
+	and	A,DISCENB,SCB_CONTROL;	/* mask off disconnect privilege */
+	or	SINDEX,A;		/* or in disconnect privilege */
 	or	SINDEX,MSG_IDENTIFYFLAG;
 p_mesgout_mk_message:
 	test	SCB_CONTROL,MK_MESSAGE  jz p_mesgout_tag;
diff --git a/drivers/scsi/aic94xx/aic94xx_reg_def.h b/drivers/scsi/aic94xx/aic94xx_reg_def.h
index 40273a747d29..dd6cc8008b16 100644
--- a/drivers/scsi/aic94xx/aic94xx_reg_def.h
+++ b/drivers/scsi/aic94xx/aic94xx_reg_def.h
@@ -2134,7 +2134,7 @@
 * The host accesses this scratch in a different manner from the
 * link sequencer. The sequencer has to use LSEQ registers
 * LmSCRPAGE and LmMnSCRPAGE to access the scratch memory. A flat
-* mapping of the scratch memory is avaliable for software
+* mapping of the scratch memory is available for software
 * convenience and to prevent corruption while the sequencer is
 * running. This memory is mapped onto addresses 800h - 9FFh.
 *
diff --git a/drivers/scsi/arm/acornscsi.c b/drivers/scsi/arm/acornscsi.c
index ec166726b314..c454e44cf51c 100644
--- a/drivers/scsi/arm/acornscsi.c
+++ b/drivers/scsi/arm/acornscsi.c
@@ -100,7 +100,7 @@
  */
 #define TIMEOUT_TIME 10
 /*
- * Define this if you want to have verbose explaination of SCSI
+ * Define this if you want to have verbose explanation of SCSI
  * status/messages.
  */
 #undef CONFIG_ACORNSCSI_CONSTANTS
@@ -1561,7 +1561,7 @@ void acornscsi_message(AS_Host *host)
 	/*
 	 * If we were negociating sync transfer, we don't yet know if
 	 * this REJECT is for the sync transfer or for the tagged queue/wide
-	 * transfer.  Re-initiate sync transfer negociation now, and if
+	 * transfer.  Re-initiate sync transfer negotiation now, and if
 	 * we got a REJECT in response to SDTR, then it'll be set to DONE.
 	 */
 	if (host->device[host->SCpnt->device->id].sync_state == SYNC_SENT_REQUEST)
diff --git a/drivers/scsi/arm/acornscsi.h b/drivers/scsi/arm/acornscsi.h
index 8d2172a0b351..01bc715a3aec 100644
--- a/drivers/scsi/arm/acornscsi.h
+++ b/drivers/scsi/arm/acornscsi.h
@@ -223,8 +223,8 @@ typedef enum {
  * Synchronous transfer state
  */
 typedef enum {					/* Synchronous transfer state		*/
-    SYNC_ASYNCHRONOUS,				/* don't negociate synchronous transfers*/
-    SYNC_NEGOCIATE,				/* start negociation			*/
+    SYNC_ASYNCHRONOUS,				/* don't negotiate synchronous transfers*/
+    SYNC_NEGOCIATE,				/* start negotiation			*/
     SYNC_SENT_REQUEST,				/* sent SDTR message			*/
     SYNC_COMPLETED,				/* received SDTR reply			*/
 } syncxfer_t;
@@ -322,7 +322,7 @@ typedef struct acornscsi_hostdata {
     /* per-device info */
     struct {
 	unsigned char	sync_xfer;		/* synchronous transfer (SBIC value)	*/
-	syncxfer_t	sync_state;		/* sync xfer negociation state		*/
+	syncxfer_t	sync_state;		/* sync xfer negotiation state		*/
 	unsigned char	disconnect_ok:1;	/* device can disconnect		*/
     } device[8];
     unsigned long	busyluns[64 / sizeof(unsigned long)];/* array of bits indicating LUNs busy	*/
diff --git a/drivers/scsi/arm/arxescsi.c b/drivers/scsi/arm/arxescsi.c
index 2836fe248df9..a750aa72b8ef 100644
--- a/drivers/scsi/arm/arxescsi.c
+++ b/drivers/scsi/arm/arxescsi.c
@@ -228,7 +228,7 @@ static const char *arxescsi_info(struct Scsi_Host *host)
  * Params  : buffer - a buffer to write information to
  *	     start  - a pointer into this buffer set by this routine to the start
  *		      of the required information.
- *	     offset - offset into information that we have read upto.
+ *	     offset - offset into information that we have read up to.
  *	     length - length of buffer
  *	     host_no - host number to return information for
  *	     inout  - 0 for reading, 1 for writing.
diff --git a/drivers/scsi/arm/cumana_2.c b/drivers/scsi/arm/cumana_2.c
index c9902b5c1f2b..547987b86384 100644
--- a/drivers/scsi/arm/cumana_2.c
+++ b/drivers/scsi/arm/cumana_2.c
@@ -344,7 +344,7 @@ cumanascsi_2_set_proc_info(struct Scsi_Host *host, char *buffer, int length)
  * Params   : buffer - a buffer to write information to
  *	      start  - a pointer into this buffer set by this routine to the start
  *		       of the required information.
- *	      offset - offset into information that we have read upto.
+ *	      offset - offset into information that we have read up to.
  *	      length - length of buffer
  *	      host_no - host number to return information for
  *	      inout  - 0 for reading, 1 for writing.
diff --git a/drivers/scsi/arm/eesox.c b/drivers/scsi/arm/eesox.c
index d8435132f461..edfd12b48c28 100644
--- a/drivers/scsi/arm/eesox.c
+++ b/drivers/scsi/arm/eesox.c
@@ -429,7 +429,7 @@ eesoxscsi_set_proc_info(struct Scsi_Host *host, char *buffer, int length)
  * Params   : buffer - a buffer to write information to
  *	      start  - a pointer into this buffer set by this routine to the start
  *		       of the required information.
- *	      offset - offset into information that we have read upto.
+ *	      offset - offset into information that we have read up to.
  *	      length - length of buffer
  *	      host_no - host number to return information for
  *	      inout  - 0 for reading, 1 for writing.
diff --git a/drivers/scsi/arm/fas216.c b/drivers/scsi/arm/fas216.c
index 2b2ce21e227e..e85c40b6e19b 100644
--- a/drivers/scsi/arm/fas216.c
+++ b/drivers/scsi/arm/fas216.c
@@ -2119,7 +2119,7 @@ request_sense:
 	 * executed, unless a target connects to us.
 	 */
 	if (info->reqSCpnt)
-		printk(KERN_WARNING "scsi%d.%c: loosing request command\n",
+		printk(KERN_WARNING "scsi%d.%c: losing request command\n",
 			info->host->host_no, '0' + SCpnt->device->id);
 	info->reqSCpnt = SCpnt;
 }
@@ -2294,7 +2294,7 @@ static int fas216_noqueue_command_lck(struct scsi_cmnd *SCpnt,
 		 * If we don't have an IRQ, then we must poll the card for
 		 * it's interrupt, and use that to call this driver's
 		 * interrupt routine.  That way, we keep the command
-		 * progressing.  Maybe we can add some inteligence here
+		 * progressing.  Maybe we can add some intelligence here
 		 * and go to sleep if we know that the device is going
 		 * to be some time (eg, disconnected).
 		 */
diff --git a/drivers/scsi/arm/fas216.h b/drivers/scsi/arm/fas216.h
index f30f8d659dc4..84b7127c0121 100644
--- a/drivers/scsi/arm/fas216.h
+++ b/drivers/scsi/arm/fas216.h
@@ -203,11 +203,11 @@ typedef enum {
 } fasdmatype_t;
 
 typedef enum {
-	neg_wait,					/* Negociate with device		*/
-	neg_inprogress,					/* Negociation sent			*/
-	neg_complete,					/* Negociation complete			*/
-	neg_targcomplete,				/* Target completed negociation		*/
-	neg_invalid					/* Negociation not supported		*/
+	neg_wait,					/* Negotiate with device		*/
+	neg_inprogress,					/* Negotiation sent			*/
+	neg_complete,					/* Negotiation complete			*/
+	neg_targcomplete,				/* Target completed negotiation		*/
+	neg_invalid					/* Negotiation not supported		*/
 } neg_t;
 
 #define MAGIC	0x441296bdUL
diff --git a/drivers/scsi/arm/powertec.c b/drivers/scsi/arm/powertec.c
index e2297b4c1b9e..9274c0677b9c 100644
--- a/drivers/scsi/arm/powertec.c
+++ b/drivers/scsi/arm/powertec.c
@@ -232,7 +232,7 @@ powertecscsi_set_proc_info(struct Scsi_Host *host, char *buffer, int length)
  * Params   : buffer  - a buffer to write information to
  *	      start   - a pointer into this buffer set by this routine to the start
  *		        of the required information.
- *	      offset  - offset into information that we have read upto.
+ *	      offset  - offset into information that we have read up to.
  *	      length  - length of buffer
  *	      inout   - 0 for reading, 1 for writing.
  * Returns  : length of data written to buffer.
diff --git a/drivers/scsi/atari_NCR5380.c b/drivers/scsi/atari_NCR5380.c
index 88b2928b4d3b..ea439f93ed81 100644
--- a/drivers/scsi/atari_NCR5380.c
+++ b/drivers/scsi/atari_NCR5380.c
@@ -464,7 +464,7 @@ static void free_all_tags(void)
  *
  * Parameters: Scsi_Cmnd *cmd
  *    The command to work on. The first scatter buffer's data are
- *    assumed to be already transfered into ptr/this_residual.
+ *    assumed to be already transferred into ptr/this_residual.
  */
 
 static void merge_contiguous_buffers(Scsi_Cmnd *cmd)
@@ -1720,7 +1720,7 @@ static int NCR5380_select(struct Scsi_Host *instance, Scsi_Cmnd *cmd, int tag)
  *	bytes to transfer, **data - pointer to data pointer.
  *
  * Returns : -1 when different phase is entered without transferring
- *	maximum number of bytes, 0 if all bytes are transfered or exit
+ *	maximum number of bytes, 0 if all bytes are transferred or exit
  *	is in same phase.
  *
  *	Also, *phase, *count, *data are modified in place.
@@ -1911,7 +1911,7 @@ static int do_abort(struct Scsi_Host *host)
  *	bytes to transfer, **data - pointer to data pointer.
  *
  * Returns : -1 when different phase is entered without transferring
- *	maximum number of bytes, 0 if all bytes or transfered or exit
+ *	maximum number of bytes, 0 if all bytes or transferred or exit
  *	is in same phase.
  *
  *	Also, *phase, *count, *data are modified in place.
diff --git a/drivers/scsi/atp870u.c b/drivers/scsi/atp870u.c
index 76029d570beb..7e6eca4a125e 100644
--- a/drivers/scsi/atp870u.c
+++ b/drivers/scsi/atp870u.c
@@ -1228,7 +1228,7 @@ TCM_5:			/* isolation complete..  */
 	printk(" \n%x %x %x %s\n ",assignid_map,mbuf[0],mbuf[1],&mbuf[2]); */
 	i = 15;
 	j = mbuf[0];
-	if ((j & 0x20) != 0) {	/* bit5=1:ID upto 7      */
+	if ((j & 0x20) != 0) {	/* bit5=1:ID up to 7      */
 		i = 7;
 	}
 	if ((j & 0x06) == 0) {	/* IDvalid?             */
diff --git a/drivers/scsi/be2iscsi/be_cmds.h b/drivers/scsi/be2iscsi/be_cmds.h
index 5218de4ab35a..fbd1dc2c15f7 100644
--- a/drivers/scsi/be2iscsi/be_cmds.h
+++ b/drivers/scsi/be2iscsi/be_cmds.h
@@ -877,7 +877,7 @@ struct be_all_if_id {
 						 */
 #define CXN_KILLED_PDU_SIZE_EXCEEDS_DSL 3	/* Connection got invalidated
 						 * internally
-						 * due to a recieved PDU
+						 * due to a received PDU
 						 * size > DSL
 						 */
 #define CXN_KILLED_BURST_LEN_MISMATCH   4	/* Connection got invalidated
@@ -886,7 +886,7 @@ struct be_all_if_id {
 						 * FBL/MBL.
 						 */
 #define CXN_KILLED_AHS_RCVD		5	/* Connection got invalidated
-						 * internally due to a recieved
+						 * internally due to a received
 						 * PDU Hdr that has
 						 * AHS */
 #define CXN_KILLED_HDR_DIGEST_ERR	6	/* Connection got invalidated
@@ -899,12 +899,12 @@ struct be_all_if_id {
 						 * pdu hdr
 						 */
 #define CXN_KILLED_STALE_ITT_TTT_RCVD	8	/* Connection got invalidated
-						 * internally due to a recieved
+						 * internally due to a received
 						 * ITT/TTT that does not belong
 						 * to this Connection
 						 */
 #define CXN_KILLED_INVALID_ITT_TTT_RCVD 9	/* Connection got invalidated
-						 * internally due to recieved
+						 * internally due to received
 						 * ITT/TTT value > Max
 						 * Supported ITTs/TTTs
 						 */
@@ -936,21 +936,21 @@ struct be_all_if_id {
 						 * index.
 						 */
 #define CXN_KILLED_OVER_RUN_RESIDUAL	16	/* Command got invalidated
-						 * internally due to recived
+						 * internally due to received
 						 * command has residual
 						 * over run bytes.
 						 */
 #define CXN_KILLED_UNDER_RUN_RESIDUAL	17	/* Command got invalidated
-						 * internally due to recived
+						 * internally due to received
 						 * command has residual under
 						 * run bytes.
 						 */
 #define CMD_KILLED_INVALID_STATSN_RCVD	18	/* Command got invalidated
-						 * internally due to a recieved
+						 * internally due to a received
 						 * PDU has an invalid StatusSN
 						 */
 #define CMD_KILLED_INVALID_R2T_RCVD	19	/* Command got invalidated
-						 * internally due to a recieved
+						 * internally due to a received
 						 * an R2T with some invalid
 						 * fields in it
 						 */
@@ -973,7 +973,7 @@ struct be_all_if_id {
 						 */
 #define CMD_CXN_KILLED_INVALID_DATASN_RCVD 24	/* Command got invalidated
 						 * internally due to a
-						 * recieved PDU has an invalid
+						 * received PDU has an invalid
 						 * DataSN
 						 */
 #define CXN_INVALIDATE_NOTIFY		25	/* Connection invalidation
diff --git a/drivers/scsi/bfa/bfa_core.c b/drivers/scsi/bfa/bfa_core.c
index 1cd5c8b0618d..91838c51fb76 100644
--- a/drivers/scsi/bfa/bfa_core.c
+++ b/drivers/scsi/bfa/bfa_core.c
@@ -355,7 +355,7 @@ bfa_msix_lpu_err(struct bfa_s *bfa, int vec)
 			/*
 			 * ERR_PSS bit needs to be cleared as well in case
 			 * interrups are shared so driver's interrupt handler is
-			 * still called eventhough it is already masked out.
+			 * still called even though it is already masked out.
 			 */
 			curr_value = readl(
 					bfa->ioc.ioc_regs.pss_err_status_reg);
diff --git a/drivers/scsi/bfa/bfa_defs_svc.h b/drivers/scsi/bfa/bfa_defs_svc.h
index 648c84176722..207f598877c7 100644
--- a/drivers/scsi/bfa/bfa_defs_svc.h
+++ b/drivers/scsi/bfa/bfa_defs_svc.h
@@ -145,7 +145,7 @@ struct bfa_fw_io_stats_s {
 	u32	ioh_data_oor_event;	/*  Data out of range */
 	u32	ioh_ro_ooo_event;	/*  Relative offset out of range */
 	u32	ioh_cpu_owned_event;	/*  IOH hit -iost owned by f/w */
-	u32	ioh_unexp_frame_event;	/*  unexpected frame recieved
+	u32	ioh_unexp_frame_event;	/*  unexpected frame received
 						 *   count */
 	u32	ioh_err_int;		/*  IOH error int during data-phase
 						 *   for scsi write
@@ -566,8 +566,8 @@ struct bfa_itnim_iostats_s {
 	u32	input_reqs;		/*  Data in-bound requests	*/
 	u32	output_reqs;		/*  Data out-bound requests	*/
 	u32	io_comps;		/*  Total IO Completions	*/
-	u32	wr_throughput;		/*  Write data transfered in bytes */
-	u32	rd_throughput;		/*  Read data transfered in bytes  */
+	u32	wr_throughput;		/*  Write data transferred in bytes */
+	u32	rd_throughput;		/*  Read data transferred in bytes  */
 
 	u32	iocomp_ok;		/*  Slowpath IO completions	*/
 	u32	iocomp_underrun;	/*  IO underrun		*/
diff --git a/drivers/scsi/bfa/bfa_fc.h b/drivers/scsi/bfa/bfa_fc.h
index 8e764fae8dc9..bf0067e0fd0d 100644
--- a/drivers/scsi/bfa/bfa_fc.h
+++ b/drivers/scsi/bfa/bfa_fc.h
@@ -315,7 +315,7 @@ struct fc_plogi_csp_s {
 			query_dbc:1,
 			hg_supp:1;
 #endif
-	__be16		rxsz;		/* recieve data_field size */
+	__be16		rxsz;		/* receive data_field size */
 	__be16		conseq;
 	__be16		ro_bitmap;
 	__be32		e_d_tov;
diff --git a/drivers/scsi/bfa/bfa_fcs.c b/drivers/scsi/bfa/bfa_fcs.c
index f674f9318629..9b43ca4b6778 100644
--- a/drivers/scsi/bfa/bfa_fcs.c
+++ b/drivers/scsi/bfa/bfa_fcs.c
@@ -1033,7 +1033,7 @@ bfa_fcs_fabric_delvport(struct bfa_fcs_fabric_s *fabric,
 
 
 /*
- * Lookup for a vport withing a fabric given its pwwn
+ * Lookup for a vport within a fabric given its pwwn
  */
 struct bfa_fcs_vport_s *
 bfa_fcs_fabric_vport_lookup(struct bfa_fcs_fabric_s *fabric, wwn_t pwwn)
diff --git a/drivers/scsi/bfa/bfa_fcs.h b/drivers/scsi/bfa/bfa_fcs.h
index 0fd63168573f..61cdce4bd913 100644
--- a/drivers/scsi/bfa/bfa_fcs.h
+++ b/drivers/scsi/bfa/bfa_fcs.h
@@ -705,7 +705,7 @@ enum rport_event {
 	RPSM_EVENT_ADDRESS_CHANGE = 15, /*  Rport's PID has changed     */
 	RPSM_EVENT_ADDRESS_DISC = 16,   /*  Need to Discover rport's PID */
 	RPSM_EVENT_PRLO_RCVD   = 17,    /*  PRLO from remote device     */
-	RPSM_EVENT_PLOGI_RETRY = 18,    /*  Retry PLOGI continously */
+	RPSM_EVENT_PLOGI_RETRY = 18,    /*  Retry PLOGI continuously */
 };
 
 /*
diff --git a/drivers/scsi/bfa/bfa_fcs_lport.c b/drivers/scsi/bfa/bfa_fcs_lport.c
index 43fa986bb586..1d6be8c14473 100644
--- a/drivers/scsi/bfa/bfa_fcs_lport.c
+++ b/drivers/scsi/bfa/bfa_fcs_lport.c
@@ -1149,7 +1149,7 @@ bfa_fcs_lport_fdmi_sm_offline(struct bfa_fcs_lport_fdmi_s *fdmi,
 		} else {
 			/*
 			 * For a base port, we should first register the HBA
-			 * atribute. The HBA attribute also contains the base
+			 * attribute. The HBA attribute also contains the base
 			 *  port registration.
 			 */
 			bfa_sm_set_state(fdmi,
diff --git a/drivers/scsi/bfa/bfa_svc.c b/drivers/scsi/bfa/bfa_svc.c
index 1d34921f88bf..16d9a5f61c18 100644
--- a/drivers/scsi/bfa/bfa_svc.c
+++ b/drivers/scsi/bfa/bfa_svc.c
@@ -1035,7 +1035,7 @@ bfa_fcxp_free(struct bfa_fcxp_s *fcxp)
  * @param[in]	rport	BFA rport pointer. Could be left NULL for WKA rports
  * @param[in]	vf_id	virtual Fabric ID
  * @param[in]	lp_tag	lport tag
- * @param[in]	cts	use Continous sequence
+ * @param[in]	cts	use Continuous sequence
  * @param[in]	cos	fc Class of Service
  * @param[in]	reqlen	request length, does not include FCHS length
  * @param[in]	fchs	fc Header Pointer. The header content will be copied
@@ -5022,7 +5022,7 @@ bfa_uf_start(struct bfa_s *bfa)
 }
 
 /*
- * Register handler for all unsolicted recieve frames.
+ * Register handler for all unsolicted receive frames.
  *
  * @param[in]	bfa		BFA instance
  * @param[in]	ufrecv	receive handler function
diff --git a/drivers/scsi/bfa/bfa_svc.h b/drivers/scsi/bfa/bfa_svc.h
index 331ad992a581..5902a45c080f 100644
--- a/drivers/scsi/bfa/bfa_svc.h
+++ b/drivers/scsi/bfa/bfa_svc.h
@@ -127,7 +127,7 @@ struct bfa_fcxp_req_info_s {
 					 * rport nexus is established
 					 */
 	struct fchs_s	fchs;	/*  request FC header structure */
-	u8		cts;	/*  continous sequence */
+	u8		cts;	/*  continuous sequence */
 	u8		class;	/*  FC class for the request/response */
 	u16	max_frmsz;	/*  max send frame size */
 	u16	vf_id;	/*  vsan tag if applicable */
diff --git a/drivers/scsi/bfa/bfad.c b/drivers/scsi/bfa/bfad.c
index 44524cf55d33..0fd510a01561 100644
--- a/drivers/scsi/bfa/bfad.c
+++ b/drivers/scsi/bfa/bfad.c
@@ -1278,7 +1278,7 @@ bfad_setup_intr(struct bfad_s *bfad)
 			 * interrupts into one vector, so even if we
 			 * can try to request less vectors, we don't
 			 * know how to associate interrupt events to
-			 *  vectors. Linux doesn't dupicate vectors
+			 *  vectors. Linux doesn't duplicate vectors
 			 * in the MSIX table for this case.
 			 */
 
diff --git a/drivers/scsi/bnx2fc/57xx_hsi_bnx2fc.h b/drivers/scsi/bnx2fc/57xx_hsi_bnx2fc.h
index 69d031d98469..97a61b4d81b7 100644
--- a/drivers/scsi/bnx2fc/57xx_hsi_bnx2fc.h
+++ b/drivers/scsi/bnx2fc/57xx_hsi_bnx2fc.h
@@ -898,7 +898,7 @@ struct fcoe_confqe {
 
 
 /*
- * FCoE conection data base
+ * FCoE connection data base
  */
 struct fcoe_conn_db {
 #if defined(__BIG_ENDIAN)
diff --git a/drivers/scsi/bnx2fc/bnx2fc.h b/drivers/scsi/bnx2fc/bnx2fc.h
index df2fc09ba479..b6d350ac4288 100644
--- a/drivers/scsi/bnx2fc/bnx2fc.h
+++ b/drivers/scsi/bnx2fc/bnx2fc.h
@@ -62,7 +62,7 @@
 #include "bnx2fc_constants.h"
 
 #define BNX2FC_NAME		"bnx2fc"
-#define BNX2FC_VERSION		"1.0.0"
+#define BNX2FC_VERSION		"1.0.1"
 
 #define PFX			"bnx2fc: "
 
@@ -84,9 +84,15 @@
 #define BNX2FC_NUM_MAX_SESS	128
 #define BNX2FC_NUM_MAX_SESS_LOG	(ilog2(BNX2FC_NUM_MAX_SESS))
 
-#define BNX2FC_MAX_OUTSTANDING_CMNDS	4096
+#define BNX2FC_MAX_OUTSTANDING_CMNDS	2048
+#define BNX2FC_CAN_QUEUE		BNX2FC_MAX_OUTSTANDING_CMNDS
+#define BNX2FC_ELSTM_XIDS		BNX2FC_CAN_QUEUE
 #define BNX2FC_MIN_PAYLOAD		256
 #define BNX2FC_MAX_PAYLOAD		2048
+#define BNX2FC_MFS			\
+			(BNX2FC_MAX_PAYLOAD + sizeof(struct fc_frame_header))
+#define BNX2FC_MINI_JUMBO_MTU		2500
+
 
 #define BNX2FC_RQ_BUF_SZ		256
 #define BNX2FC_RQ_BUF_LOG_SZ		(ilog2(BNX2FC_RQ_BUF_SZ))
@@ -98,7 +104,8 @@
 #define BNX2FC_CONFQ_WQE_SIZE		(sizeof(struct fcoe_confqe))
 #define BNX2FC_5771X_DB_PAGE_SIZE	128
 
-#define BNX2FC_MAX_TASKS		BNX2FC_MAX_OUTSTANDING_CMNDS
+#define BNX2FC_MAX_TASKS		\
+			     (BNX2FC_MAX_OUTSTANDING_CMNDS + BNX2FC_ELSTM_XIDS)
 #define BNX2FC_TASK_SIZE		128
 #define	BNX2FC_TASKS_PER_PAGE		(PAGE_SIZE/BNX2FC_TASK_SIZE)
 #define BNX2FC_TASK_CTX_ARR_SZ		(BNX2FC_MAX_TASKS/BNX2FC_TASKS_PER_PAGE)
@@ -112,10 +119,10 @@
 #define BNX2FC_WRITE			(1 << 0)
 
 #define BNX2FC_MIN_XID			0
-#define BNX2FC_MAX_XID			(BNX2FC_MAX_OUTSTANDING_CMNDS - 1)
-#define FCOE_MIN_XID			(BNX2FC_MAX_OUTSTANDING_CMNDS)
-#define FCOE_MAX_XID		\
-			(BNX2FC_MAX_OUTSTANDING_CMNDS + (nr_cpu_ids * 256))
+#define BNX2FC_MAX_XID			\
+			(BNX2FC_MAX_OUTSTANDING_CMNDS + BNX2FC_ELSTM_XIDS - 1)
+#define FCOE_MIN_XID			(BNX2FC_MAX_XID + 1)
+#define FCOE_MAX_XID			(FCOE_MIN_XID + 4095)
 #define BNX2FC_MAX_LUN			0xFFFF
 #define BNX2FC_MAX_FCP_TGT		256
 #define BNX2FC_MAX_CMD_LEN		16
@@ -125,7 +132,6 @@
 
 #define BNX2FC_WAIT_CNT			120
 #define BNX2FC_FW_TIMEOUT		(3 * HZ)
-
 #define PORT_MAX			2
 
 #define CMD_SCSI_STATUS(Cmnd)		((Cmnd)->SCp.Status)
diff --git a/drivers/scsi/bnx2fc/bnx2fc_els.c b/drivers/scsi/bnx2fc/bnx2fc_els.c
index 7a11a255157f..52c358427ce2 100644
--- a/drivers/scsi/bnx2fc/bnx2fc_els.c
+++ b/drivers/scsi/bnx2fc/bnx2fc_els.c
@@ -397,7 +397,7 @@ void bnx2fc_process_els_compl(struct bnx2fc_cmd *els_req,
 			     &els_req->req_flags)) {
 		BNX2FC_ELS_DBG("Timer context finished processing this "
 			   "els - 0x%x\n", els_req->xid);
-		/* This IO doesnt receive cleanup completion */
+		/* This IO doesn't receive cleanup completion */
 		kref_put(&els_req->refcount, bnx2fc_cmd_release);
 		return;
 	}
diff --git a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
index e476e8753079..e2e647509a73 100644
--- a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
+++ b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
@@ -21,7 +21,7 @@ DEFINE_PER_CPU(struct bnx2fc_percpu_s, bnx2fc_percpu);
 
 #define DRV_MODULE_NAME		"bnx2fc"
 #define DRV_MODULE_VERSION	BNX2FC_VERSION
-#define DRV_MODULE_RELDATE	"Jan 25, 2011"
+#define DRV_MODULE_RELDATE	"Mar 17, 2011"
 
 
 static char version[] __devinitdata =
@@ -437,17 +437,16 @@ static int bnx2fc_l2_rcv_thread(void *arg)
 	set_current_state(TASK_INTERRUPTIBLE);
 	while (!kthread_should_stop()) {
 		schedule();
-		set_current_state(TASK_RUNNING);
 		spin_lock_bh(&bg->fcoe_rx_list.lock);
 		while ((skb = __skb_dequeue(&bg->fcoe_rx_list)) != NULL) {
 			spin_unlock_bh(&bg->fcoe_rx_list.lock);
 			bnx2fc_recv_frame(skb);
 			spin_lock_bh(&bg->fcoe_rx_list.lock);
 		}
+		__set_current_state(TASK_INTERRUPTIBLE);
 		spin_unlock_bh(&bg->fcoe_rx_list.lock);
-		set_current_state(TASK_INTERRUPTIBLE);
 	}
-	set_current_state(TASK_RUNNING);
+	__set_current_state(TASK_RUNNING);
 	return 0;
 }
 
@@ -569,7 +568,6 @@ int bnx2fc_percpu_io_thread(void *arg)
 	set_current_state(TASK_INTERRUPTIBLE);
 	while (!kthread_should_stop()) {
 		schedule();
-		set_current_state(TASK_RUNNING);
 		spin_lock_bh(&p->fp_work_lock);
 		while (!list_empty(&p->work_list)) {
 			list_splice_init(&p->work_list, &work_list);
@@ -583,10 +581,10 @@ int bnx2fc_percpu_io_thread(void *arg)
 
 			spin_lock_bh(&p->fp_work_lock);
 		}
+		__set_current_state(TASK_INTERRUPTIBLE);
 		spin_unlock_bh(&p->fp_work_lock);
-		set_current_state(TASK_INTERRUPTIBLE);
 	}
-	set_current_state(TASK_RUNNING);
+	__set_current_state(TASK_RUNNING);
 
 	return 0;
 }
@@ -661,31 +659,6 @@ static int bnx2fc_shost_config(struct fc_lport *lport, struct device *dev)
 	return 0;
 }
 
-static int  bnx2fc_mfs_update(struct fc_lport *lport)
-{
-	struct fcoe_port *port = lport_priv(lport);
-	struct bnx2fc_hba *hba = port->priv;
-	struct net_device *netdev = hba->netdev;
-	u32 mfs;
-	u32 max_mfs;
-
-	mfs = netdev->mtu - (sizeof(struct fcoe_hdr) +
-			     sizeof(struct fcoe_crc_eof));
-	max_mfs = BNX2FC_MAX_PAYLOAD + sizeof(struct fc_frame_header);
-	BNX2FC_HBA_DBG(lport, "mfs = %d, max_mfs = %d\n", mfs, max_mfs);
-	if (mfs > max_mfs)
-		mfs = max_mfs;
-
-	/* Adjust mfs to be a multiple of 256 bytes */
-	mfs = (((mfs - sizeof(struct fc_frame_header)) / BNX2FC_MIN_PAYLOAD) *
-			BNX2FC_MIN_PAYLOAD);
-	mfs = mfs + sizeof(struct fc_frame_header);
-
-	BNX2FC_HBA_DBG(lport, "Set MFS = %d\n", mfs);
-	if (fc_set_mfs(lport, mfs))
-		return -EINVAL;
-	return 0;
-}
 static void bnx2fc_link_speed_update(struct fc_lport *lport)
 {
 	struct fcoe_port *port = lport_priv(lport);
@@ -754,7 +727,7 @@ static int bnx2fc_net_config(struct fc_lport *lport)
 	    !hba->phys_dev->ethtool_ops->get_pauseparam)
 		return -EOPNOTSUPP;
 
-	if (bnx2fc_mfs_update(lport))
+	if (fc_set_mfs(lport, BNX2FC_MFS))
 		return -EINVAL;
 
 	skb_queue_head_init(&port->fcoe_pending_queue);
@@ -825,14 +798,6 @@ static void bnx2fc_indicate_netevent(void *context, unsigned long event)
 		if (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state))
 			printk(KERN_ERR "indicate_netevent: "\
 					"adapter is not UP!!\n");
-		/* fall thru to update mfs if MTU has changed */
-	case NETDEV_CHANGEMTU:
-		BNX2FC_HBA_DBG(lport, "NETDEV_CHANGEMTU event\n");
-		bnx2fc_mfs_update(lport);
-		mutex_lock(&lport->lp_mutex);
-		list_for_each_entry(vport, &lport->vports, list)
-			bnx2fc_mfs_update(vport);
-		mutex_unlock(&lport->lp_mutex);
 		break;
 
 	case NETDEV_DOWN:
@@ -1095,13 +1060,6 @@ static int bnx2fc_netdev_setup(struct bnx2fc_hba *hba)
 	struct netdev_hw_addr *ha;
 	int sel_san_mac = 0;
 
-	/* Do not support for bonding device */
-	if ((netdev->priv_flags & IFF_MASTER_ALB) ||
-			(netdev->priv_flags & IFF_SLAVE_INACTIVE) ||
-			(netdev->priv_flags & IFF_MASTER_8023AD)) {
-		return -EOPNOTSUPP;
-	}
-
 	/* setup Source MAC Address */
 	rcu_read_lock();
 	for_each_dev_addr(physdev, ha) {
@@ -1432,16 +1390,9 @@ static int bnx2fc_destroy(struct net_device *netdev)
 	struct net_device *phys_dev;
 	int rc = 0;
 
-	if (!rtnl_trylock())
-		return restart_syscall();
+	rtnl_lock();
 
 	mutex_lock(&bnx2fc_dev_lock);
-#ifdef CONFIG_SCSI_BNX2X_FCOE_MODULE
-	if (THIS_MODULE->state != MODULE_STATE_LIVE) {
-		rc = -ENODEV;
-		goto netdev_err;
-	}
-#endif
 	/* obtain physical netdev */
 	if (netdev->priv_flags & IFF_802_1Q_VLAN)
 		phys_dev = vlan_dev_real_dev(netdev);
@@ -1805,18 +1756,10 @@ static int bnx2fc_disable(struct net_device *netdev)
 	struct ethtool_drvinfo drvinfo;
 	int rc = 0;
 
-	if (!rtnl_trylock()) {
-		printk(KERN_ERR PFX "retrying for rtnl_lock\n");
-		return -EIO;
-	}
+	rtnl_lock();
 
 	mutex_lock(&bnx2fc_dev_lock);
 
-	if (THIS_MODULE->state != MODULE_STATE_LIVE) {
-		rc = -ENODEV;
-		goto nodev;
-	}
-
 	/* obtain physical netdev */
 	if (netdev->priv_flags & IFF_802_1Q_VLAN)
 		phys_dev = vlan_dev_real_dev(netdev);
@@ -1867,19 +1810,11 @@ static int bnx2fc_enable(struct net_device *netdev)
 	struct ethtool_drvinfo drvinfo;
 	int rc = 0;
 
-	if (!rtnl_trylock()) {
-		printk(KERN_ERR PFX "retrying for rtnl_lock\n");
-		return -EIO;
-	}
+	rtnl_lock();
 
 	BNX2FC_MISC_DBG("Entered %s\n", __func__);
 	mutex_lock(&bnx2fc_dev_lock);
 
-	if (THIS_MODULE->state != MODULE_STATE_LIVE) {
-		rc = -ENODEV;
-		goto nodev;
-	}
-
 	/* obtain physical netdev */
 	if (netdev->priv_flags & IFF_802_1Q_VLAN)
 		phys_dev = vlan_dev_real_dev(netdev);
@@ -1942,18 +1877,9 @@ static int bnx2fc_create(struct net_device *netdev, enum fip_state fip_mode)
 		return -EIO;
 	}
 
-	if (!rtnl_trylock()) {
-		printk(KERN_ERR "trying for rtnl_lock\n");
-		return -EIO;
-	}
-	mutex_lock(&bnx2fc_dev_lock);
+	rtnl_lock();
 
-#ifdef CONFIG_SCSI_BNX2X_FCOE_MODULE
-	if (THIS_MODULE->state != MODULE_STATE_LIVE) {
-		rc = -ENODEV;
-		goto mod_err;
-	}
-#endif
+	mutex_lock(&bnx2fc_dev_lock);
 
 	if (!try_module_get(THIS_MODULE)) {
 		rc = -EINVAL;
@@ -2506,7 +2432,7 @@ static struct scsi_host_template bnx2fc_shost_template = {
 	.change_queue_type	= fc_change_queue_type,
 	.this_id		= -1,
 	.cmd_per_lun		= 3,
-	.can_queue		= (BNX2FC_MAX_OUTSTANDING_CMNDS/2),
+	.can_queue		= BNX2FC_CAN_QUEUE,
 	.use_clustering		= ENABLE_CLUSTERING,
 	.sg_tablesize		= BNX2FC_MAX_BDS_PER_CMD,
 	.max_sectors		= 512,
diff --git a/drivers/scsi/bnx2fc/bnx2fc_hwi.c b/drivers/scsi/bnx2fc/bnx2fc_hwi.c
index 4f4096836742..1b680e288c56 100644
--- a/drivers/scsi/bnx2fc/bnx2fc_hwi.c
+++ b/drivers/scsi/bnx2fc/bnx2fc_hwi.c
@@ -87,7 +87,7 @@ int bnx2fc_send_fw_fcoe_init_msg(struct bnx2fc_hba *hba)
 	fcoe_init1.task_list_pbl_addr_lo = (u32) hba->task_ctx_bd_dma;
 	fcoe_init1.task_list_pbl_addr_hi =
 				(u32) ((u64) hba->task_ctx_bd_dma >> 32);
-	fcoe_init1.mtu = hba->netdev->mtu;
+	fcoe_init1.mtu = BNX2FC_MINI_JUMBO_MTU;
 
 	fcoe_init1.flags = (PAGE_SHIFT <<
 				FCOE_KWQE_INIT1_LOG_PAGE_SIZE_SHIFT);
@@ -590,7 +590,10 @@ static void bnx2fc_process_unsol_compl(struct bnx2fc_rport *tgt, u16 wqe)
 
 		num_rq = (frame_len + BNX2FC_RQ_BUF_SZ - 1) / BNX2FC_RQ_BUF_SZ;
 
+		spin_lock_bh(&tgt->tgt_lock);
 		rq_data = (unsigned char *)bnx2fc_get_next_rqe(tgt, num_rq);
+		spin_unlock_bh(&tgt->tgt_lock);
+
 		if (rq_data) {
 			buf = rq_data;
 		} else {
@@ -603,8 +606,10 @@ static void bnx2fc_process_unsol_compl(struct bnx2fc_rport *tgt, u16 wqe)
 			}
 
 			for (i = 0; i < num_rq; i++) {
+				spin_lock_bh(&tgt->tgt_lock);
 				rq_data = (unsigned char *)
 					   bnx2fc_get_next_rqe(tgt, 1);
+				spin_unlock_bh(&tgt->tgt_lock);
 				len = BNX2FC_RQ_BUF_SZ;
 				memcpy(buf1, rq_data, len);
 				buf1 += len;
@@ -615,13 +620,15 @@ static void bnx2fc_process_unsol_compl(struct bnx2fc_rport *tgt, u16 wqe)
 
 		if (buf != rq_data)
 			kfree(buf);
+		spin_lock_bh(&tgt->tgt_lock);
 		bnx2fc_return_rqe(tgt, num_rq);
+		spin_unlock_bh(&tgt->tgt_lock);
 		break;
 
 	case FCOE_ERROR_DETECTION_CQE_TYPE:
 		/*
-		 *In case of error reporting CQE a single RQ entry
-		 * is consumes.
+		 * In case of error reporting CQE a single RQ entry
+		 * is consumed.
 		 */
 		spin_lock_bh(&tgt->tgt_lock);
 		num_rq = 1;
@@ -705,6 +712,7 @@ static void bnx2fc_process_unsol_compl(struct bnx2fc_rport *tgt, u16 wqe)
 		 *In case of warning reporting CQE a single RQ entry
 		 * is consumes.
 		 */
+		spin_lock_bh(&tgt->tgt_lock);
 		num_rq = 1;
 		err_entry = (struct fcoe_err_report_entry *)
 			     bnx2fc_get_next_rqe(tgt, 1);
@@ -717,6 +725,7 @@ static void bnx2fc_process_unsol_compl(struct bnx2fc_rport *tgt, u16 wqe)
 			err_entry->tx_buf_off, err_entry->rx_buf_off);
 
 		bnx2fc_return_rqe(tgt, 1);
+		spin_unlock_bh(&tgt->tgt_lock);
 		break;
 
 	default:
diff --git a/drivers/scsi/bnx2fc/bnx2fc_io.c b/drivers/scsi/bnx2fc/bnx2fc_io.c
index 0f1dd23730db..1decefbf32e3 100644
--- a/drivers/scsi/bnx2fc/bnx2fc_io.c
+++ b/drivers/scsi/bnx2fc/bnx2fc_io.c
@@ -11,6 +11,9 @@
  */
 
 #include "bnx2fc.h"
+
+#define RESERVE_FREE_LIST_INDEX num_possible_cpus()
+
 static int bnx2fc_split_bd(struct bnx2fc_cmd *io_req, u64 addr, int sg_len,
 			   int bd_index);
 static int bnx2fc_map_sg(struct bnx2fc_cmd *io_req);
@@ -242,8 +245,9 @@ struct bnx2fc_cmd_mgr *bnx2fc_cmd_mgr_alloc(struct bnx2fc_hba *hba,
 	u32 mem_size;
 	u16 xid;
 	int i;
-	int num_ios;
+	int num_ios, num_pri_ios;
 	size_t bd_tbl_sz;
+	int arr_sz = num_possible_cpus() + 1;
 
 	if (max_xid <= min_xid || max_xid == FC_XID_UNKNOWN) {
 		printk(KERN_ERR PFX "cmd_mgr_alloc: Invalid min_xid 0x%x \
@@ -263,14 +267,14 @@ struct bnx2fc_cmd_mgr *bnx2fc_cmd_mgr_alloc(struct bnx2fc_hba *hba,
 	}
 
 	cmgr->free_list = kzalloc(sizeof(*cmgr->free_list) *
-				  num_possible_cpus(), GFP_KERNEL);
+				  arr_sz, GFP_KERNEL);
 	if (!cmgr->free_list) {
 		printk(KERN_ERR PFX "failed to alloc free_list\n");
 		goto mem_err;
 	}
 
 	cmgr->free_list_lock = kzalloc(sizeof(*cmgr->free_list_lock) *
-				       num_possible_cpus(), GFP_KERNEL);
+				       arr_sz, GFP_KERNEL);
 	if (!cmgr->free_list_lock) {
 		printk(KERN_ERR PFX "failed to alloc free_list_lock\n");
 		goto mem_err;
@@ -279,13 +283,18 @@ struct bnx2fc_cmd_mgr *bnx2fc_cmd_mgr_alloc(struct bnx2fc_hba *hba,
 	cmgr->hba = hba;
 	cmgr->cmds = (struct bnx2fc_cmd **)(cmgr + 1);
 
-	for (i = 0; i < num_possible_cpus(); i++)  {
+	for (i = 0; i < arr_sz; i++)  {
 		INIT_LIST_HEAD(&cmgr->free_list[i]);
 		spin_lock_init(&cmgr->free_list_lock[i]);
 	}
 
-	/* Pre-allocated pool of bnx2fc_cmds */
+	/*
+	 * Pre-allocated pool of bnx2fc_cmds.
+	 * Last entry in the free list array is the free list
+	 * of slow path requests.
+	 */
 	xid = BNX2FC_MIN_XID;
+	num_pri_ios = num_ios - BNX2FC_ELSTM_XIDS;
 	for (i = 0; i < num_ios; i++) {
 		io_req = kzalloc(sizeof(*io_req), GFP_KERNEL);
 
@@ -298,11 +307,13 @@ struct bnx2fc_cmd_mgr *bnx2fc_cmd_mgr_alloc(struct bnx2fc_hba *hba,
 		INIT_DELAYED_WORK(&io_req->timeout_work, bnx2fc_cmd_timeout);
 
 		io_req->xid = xid++;
-		if (io_req->xid >= BNX2FC_MAX_OUTSTANDING_CMNDS)
-			printk(KERN_ERR PFX "ERROR allocating xids - 0x%x\n",
-				io_req->xid);
-		list_add_tail(&io_req->link,
-			&cmgr->free_list[io_req->xid % num_possible_cpus()]);
+		if (i < num_pri_ios)
+			list_add_tail(&io_req->link,
+				&cmgr->free_list[io_req->xid %
+						 num_possible_cpus()]);
+		else
+			list_add_tail(&io_req->link,
+				&cmgr->free_list[num_possible_cpus()]);
 		io_req++;
 	}
 
@@ -389,7 +400,7 @@ free_cmd_pool:
 	if (!cmgr->free_list)
 		goto free_cmgr;
 
-	for (i = 0; i < num_possible_cpus(); i++)  {
+	for (i = 0; i < num_possible_cpus() + 1; i++)  {
 		struct list_head *list;
 		struct list_head *tmp;
 
@@ -413,6 +424,7 @@ struct bnx2fc_cmd *bnx2fc_elstm_alloc(struct bnx2fc_rport *tgt, int type)
 	struct bnx2fc_cmd *io_req;
 	struct list_head *listp;
 	struct io_bdt *bd_tbl;
+	int index = RESERVE_FREE_LIST_INDEX;
 	u32 max_sqes;
 	u16 xid;
 
@@ -432,26 +444,26 @@ struct bnx2fc_cmd *bnx2fc_elstm_alloc(struct bnx2fc_rport *tgt, int type)
 	 * NOTE: Free list insertions and deletions are protected with
 	 * cmgr lock
 	 */
-	spin_lock_bh(&cmd_mgr->free_list_lock[smp_processor_id()]);
-	if ((list_empty(&(cmd_mgr->free_list[smp_processor_id()]))) ||
+	spin_lock_bh(&cmd_mgr->free_list_lock[index]);
+	if ((list_empty(&(cmd_mgr->free_list[index]))) ||
 	    (tgt->num_active_ios.counter  >= max_sqes)) {
 		BNX2FC_TGT_DBG(tgt, "No free els_tm cmds available "
 			"ios(%d):sqes(%d)\n",
 			tgt->num_active_ios.counter, tgt->max_sqes);
-		if (list_empty(&(cmd_mgr->free_list[smp_processor_id()])))
+		if (list_empty(&(cmd_mgr->free_list[index])))
 			printk(KERN_ERR PFX "elstm_alloc: list_empty\n");
-		spin_unlock_bh(&cmd_mgr->free_list_lock[smp_processor_id()]);
+		spin_unlock_bh(&cmd_mgr->free_list_lock[index]);
 		return NULL;
 	}
 
 	listp = (struct list_head *)
-			cmd_mgr->free_list[smp_processor_id()].next;
+			cmd_mgr->free_list[index].next;
 	list_del_init(listp);
 	io_req = (struct bnx2fc_cmd *) listp;
 	xid = io_req->xid;
 	cmd_mgr->cmds[xid] = io_req;
 	atomic_inc(&tgt->num_active_ios);
-	spin_unlock_bh(&cmd_mgr->free_list_lock[smp_processor_id()]);
+	spin_unlock_bh(&cmd_mgr->free_list_lock[index]);
 
 	INIT_LIST_HEAD(&io_req->link);
 
@@ -479,27 +491,30 @@ static struct bnx2fc_cmd *bnx2fc_cmd_alloc(struct bnx2fc_rport *tgt)
 	struct io_bdt *bd_tbl;
 	u32 max_sqes;
 	u16 xid;
+	int index = get_cpu();
 
 	max_sqes = BNX2FC_SCSI_MAX_SQES;
 	/*
 	 * NOTE: Free list insertions and deletions are protected with
 	 * cmgr lock
 	 */
-	spin_lock_bh(&cmd_mgr->free_list_lock[smp_processor_id()]);
-	if ((list_empty(&cmd_mgr->free_list[smp_processor_id()])) ||
+	spin_lock_bh(&cmd_mgr->free_list_lock[index]);
+	if ((list_empty(&cmd_mgr->free_list[index])) ||
 	    (tgt->num_active_ios.counter  >= max_sqes)) {
-		spin_unlock_bh(&cmd_mgr->free_list_lock[smp_processor_id()]);
+		spin_unlock_bh(&cmd_mgr->free_list_lock[index]);
+		put_cpu();
 		return NULL;
 	}
 
 	listp = (struct list_head *)
-		cmd_mgr->free_list[smp_processor_id()].next;
+		cmd_mgr->free_list[index].next;
 	list_del_init(listp);
 	io_req = (struct bnx2fc_cmd *) listp;
 	xid = io_req->xid;
 	cmd_mgr->cmds[xid] = io_req;
 	atomic_inc(&tgt->num_active_ios);
-	spin_unlock_bh(&cmd_mgr->free_list_lock[smp_processor_id()]);
+	spin_unlock_bh(&cmd_mgr->free_list_lock[index]);
+	put_cpu();
 
 	INIT_LIST_HEAD(&io_req->link);
 
@@ -522,8 +537,15 @@ void bnx2fc_cmd_release(struct kref *ref)
 	struct bnx2fc_cmd *io_req = container_of(ref,
 						struct bnx2fc_cmd, refcount);
 	struct bnx2fc_cmd_mgr *cmd_mgr = io_req->cmd_mgr;
+	int index;
+
+	if (io_req->cmd_type == BNX2FC_SCSI_CMD)
+		index = io_req->xid % num_possible_cpus();
+	else
+		index = RESERVE_FREE_LIST_INDEX;
 
-	spin_lock_bh(&cmd_mgr->free_list_lock[smp_processor_id()]);
+
+	spin_lock_bh(&cmd_mgr->free_list_lock[index]);
 	if (io_req->cmd_type != BNX2FC_SCSI_CMD)
 		bnx2fc_free_mp_resc(io_req);
 	cmd_mgr->cmds[io_req->xid] = NULL;
@@ -531,9 +553,10 @@ void bnx2fc_cmd_release(struct kref *ref)
 	list_del_init(&io_req->link);
 	/* Add it to the free list */
 	list_add(&io_req->link,
-			&cmd_mgr->free_list[smp_processor_id()]);
+			&cmd_mgr->free_list[index]);
 	atomic_dec(&io_req->tgt->num_active_ios);
-	spin_unlock_bh(&cmd_mgr->free_list_lock[smp_processor_id()]);
+	spin_unlock_bh(&cmd_mgr->free_list_lock[index]);
+
 }
 
 static void bnx2fc_free_mp_resc(struct bnx2fc_cmd *io_req)
@@ -1250,7 +1273,7 @@ static void bnx2fc_lun_reset_cmpl(struct bnx2fc_cmd *io_req)
 						 bnx2fc_cmd_release);
 							/* timer hold */
 				rc = bnx2fc_initiate_abts(cmd);
-				/* abts shouldnt fail in this context */
+				/* abts shouldn't fail in this context */
 				WARN_ON(rc != SUCCESS);
 			} else
 				printk(KERN_ERR PFX "lun_rst: abts already in"
@@ -1285,7 +1308,7 @@ static void bnx2fc_tgt_reset_cmpl(struct bnx2fc_cmd *io_req)
 				kref_put(&io_req->refcount,
 					 bnx2fc_cmd_release); /* timer hold */
 			rc = bnx2fc_initiate_abts(cmd);
-			/* abts shouldnt fail in this context */
+			/* abts shouldn't fail in this context */
 			WARN_ON(rc != SUCCESS);
 
 		} else
diff --git a/drivers/scsi/bnx2fc/bnx2fc_tgt.c b/drivers/scsi/bnx2fc/bnx2fc_tgt.c
index 7ea93af60260..a2e3830bd268 100644
--- a/drivers/scsi/bnx2fc/bnx2fc_tgt.c
+++ b/drivers/scsi/bnx2fc/bnx2fc_tgt.c
@@ -304,10 +304,8 @@ static void bnx2fc_upload_session(struct fcoe_port *port,
 				" not sent to FW\n");
 
 	/* Free session resources */
-	spin_lock_bh(&tgt->cq_lock);
 	bnx2fc_free_session_resc(hba, tgt);
 	bnx2fc_free_conn_id(hba, tgt->fcoe_conn_id);
-	spin_unlock_bh(&tgt->cq_lock);
 }
 
 static int bnx2fc_init_tgt(struct bnx2fc_rport *tgt,
@@ -397,7 +395,7 @@ void bnx2fc_rport_event_handler(struct fc_lport *lport,
 		rp = rport->dd_data;
 		if (rport->port_id == FC_FID_DIR_SERV) {
 			/*
-			 * bnx2fc_rport structure doesnt exist for
+			 * bnx2fc_rport structure doesn't exist for
 			 * directory server.
 			 * We should not come here, as lport will
 			 * take care of fabric login
@@ -830,11 +828,13 @@ static void bnx2fc_free_session_resc(struct bnx2fc_hba *hba,
 		tgt->rq = NULL;
 	}
 	/* Free CQ */
+	spin_lock_bh(&tgt->cq_lock);
 	if (tgt->cq) {
 		dma_free_coherent(&hba->pcidev->dev, tgt->cq_mem_size,
 				    tgt->cq, tgt->cq_dma);
 		tgt->cq = NULL;
 	}
+	spin_unlock_bh(&tgt->cq_lock);
 	/* Free SQ */
 	if (tgt->sq) {
 		dma_free_coherent(&hba->pcidev->dev, tgt->sq_mem_size,
diff --git a/drivers/scsi/bnx2i/bnx2i_hwi.c b/drivers/scsi/bnx2i/bnx2i_hwi.c
index 1da34c019b8a..f0b89513faed 100644
--- a/drivers/scsi/bnx2i/bnx2i_hwi.c
+++ b/drivers/scsi/bnx2i/bnx2i_hwi.c
@@ -173,7 +173,7 @@ void bnx2i_arm_cq_event_coalescing(struct bnx2i_endpoint *ep, u8 action)
 
 /**
  * bnx2i_get_rq_buf - copy RQ buffer contents to driver buffer
- * @conn:		iscsi connection on which RQ event occured
+ * @conn:		iscsi connection on which RQ event occurred
  * @ptr:		driver buffer to which RQ buffer contents is to
  *			be copied
  * @len:		length of valid data inside RQ buf
diff --git a/drivers/scsi/cxgbi/libcxgbi.h b/drivers/scsi/cxgbi/libcxgbi.h
index 0a20fd5f7102..9267844519c9 100644
--- a/drivers/scsi/cxgbi/libcxgbi.h
+++ b/drivers/scsi/cxgbi/libcxgbi.h
@@ -262,9 +262,9 @@ struct cxgbi_skb_tx_cb {
 enum cxgbi_skcb_flags {
 	SKCBF_TX_NEED_HDR,	/* packet needs a header */
 	SKCBF_RX_COALESCED,	/* received whole pdu */
-	SKCBF_RX_HDR,		/* recieved pdu header */
-	SKCBF_RX_DATA,		/* recieved pdu payload */
-	SKCBF_RX_STATUS,	/* recieved ddp status */
+	SKCBF_RX_HDR,		/* received pdu header */
+	SKCBF_RX_DATA,		/* received pdu payload */
+	SKCBF_RX_STATUS,	/* received ddp status */
 	SKCBF_RX_DATA_DDPD,	/* pdu payload ddp'd */
 	SKCBF_RX_HCRC_ERR,	/* header digest error */
 	SKCBF_RX_DCRC_ERR,	/* data digest error */
diff --git a/drivers/scsi/dc395x.c b/drivers/scsi/dc395x.c
index b0f8523e665f..b10b3841535c 100644
--- a/drivers/scsi/dc395x.c
+++ b/drivers/scsi/dc395x.c
@@ -235,7 +235,7 @@ struct ScsiReqBlk {
 
 	u8 sg_count;			/* No of HW sg entries for this request */
 	u8 sg_index;			/* Index of HW sg entry for this request */
-	size_t total_xfer_length;	/* Total number of bytes remaining to be transfered */
+	size_t total_xfer_length;	/* Total number of bytes remaining to be transferred */
 	size_t request_length;		/* Total number of bytes in this request */
 	/*
 	 * The sense buffer handling function, request_sense, uses
@@ -1774,7 +1774,7 @@ static void dc395x_handle_interrupt(struct AdapterCtlBlk *acb,
 		dc395x_statev(acb, srb, &scsi_status);
 
 		/* 
-		 * if there were any exception occured scsi_status
+		 * if there were any exception occurred scsi_status
 		 * will be modify to bus free phase new scsi_status
 		 * transfer out from ... previous dc395x_statev
 		 */
@@ -1954,11 +1954,11 @@ static void sg_verify_length(struct ScsiReqBlk *srb)
 static void sg_update_list(struct ScsiReqBlk *srb, u32 left)
 {
 	u8 idx;
-	u32 xferred = srb->total_xfer_length - left; /* bytes transfered */
+	u32 xferred = srb->total_xfer_length - left; /* bytes transferred */
 	struct SGentry *psge = srb->segment_x + srb->sg_index;
 
 	dprintkdbg(DBG_0,
-		"sg_update_list: Transfered %i of %i bytes, %i remain\n",
+		"sg_update_list: Transferred %i of %i bytes, %i remain\n",
 		xferred, srb->total_xfer_length, left);
 	if (xferred == 0) {
 		/* nothing to update since we did not transfer any data */
@@ -1990,7 +1990,7 @@ static void sg_update_list(struct ScsiReqBlk *srb, u32 left)
 
 
 /*
- * We have transfered a single byte (PIO mode?) and need to update
+ * We have transferred a single byte (PIO mode?) and need to update
  * the count of bytes remaining (total_xfer_length) and update the sg
  * entry to either point to next byte in the current sg entry, or of
  * already at the end to point to the start of the next sg entry
@@ -2029,7 +2029,7 @@ static void cleanup_after_transfer(struct AdapterCtlBlk *acb,
 
 
 /*
- * Those no of bytes will be transfered w/ PIO through the SCSI FIFO
+ * Those no of bytes will be transferred w/ PIO through the SCSI FIFO
  * Seems to be needed for unknown reasons; could be a hardware bug :-(
  */
 #define DC395x_LASTPIO 4
@@ -2256,7 +2256,7 @@ static void data_in_phase0(struct AdapterCtlBlk *acb, struct ScsiReqBlk *srb,
 			DC395x_read32(acb, TRM_S1040_DMA_CXCNT),
 			srb->total_xfer_length, d_left_counter);
 #if DC395x_LASTPIO
-		/* KG: Less than or equal to 4 bytes can not be transfered via DMA, it seems. */
+		/* KG: Less than or equal to 4 bytes can not be transferred via DMA, it seems. */
 		if (d_left_counter
 		    && srb->total_xfer_length <= DC395x_LASTPIO) {
 			size_t left_io = srb->total_xfer_length;
diff --git a/drivers/scsi/dc395x.h b/drivers/scsi/dc395x.h
index b38360e5fe4f..fbf35e37701e 100644
--- a/drivers/scsi/dc395x.h
+++ b/drivers/scsi/dc395x.h
@@ -617,7 +617,7 @@ struct ScsiInqData
 #define NTC_DO_SEND_START		0x08	/* Send start command SPINUP		*/
 #define NTC_DO_DISCONNECT		0x04	/* Enable SCSI disconnect		*/
 #define NTC_DO_SYNC_NEGO		0x02	/* Sync negotiation			*/
-#define NTC_DO_PARITY_CHK		0x01	/* (it sould define at NAC)		*/
+#define NTC_DO_PARITY_CHK		0x01	/* (it should define at NAC)		*/
 						/* Parity check enable			*/
 
 /************************************************************************/
diff --git a/drivers/scsi/device_handler/scsi_dh_alua.c b/drivers/scsi/device_handler/scsi_dh_alua.c
index 7cae0bc85390..42fe52902add 100644
--- a/drivers/scsi/device_handler/scsi_dh_alua.c
+++ b/drivers/scsi/device_handler/scsi_dh_alua.c
@@ -541,7 +541,7 @@ static int alua_check_sense(struct scsi_device *sdev,
  *
  * Evaluate the Target Port Group State.
  * Returns SCSI_DH_DEV_OFFLINED if the path is
- * found to be unuseable.
+ * found to be unusable.
  */
 static int alua_rtpg(struct scsi_device *sdev, struct alua_dh_data *h)
 {
@@ -620,7 +620,7 @@ static int alua_rtpg(struct scsi_device *sdev, struct alua_dh_data *h)
 		break;
 	case TPGS_STATE_OFFLINE:
 	case TPGS_STATE_UNAVAILABLE:
-		/* Path unuseable for unavailable/offline */
+		/* Path unusable for unavailable/offline */
 		err = SCSI_DH_DEV_OFFLINED;
 		break;
 	default:
diff --git a/drivers/scsi/dpt/sys_info.h b/drivers/scsi/dpt/sys_info.h
index a90c4cb8ea8b..a4aa1c31ff72 100644
--- a/drivers/scsi/dpt/sys_info.h
+++ b/drivers/scsi/dpt/sys_info.h
@@ -79,9 +79,9 @@
    typedef struct  {
 #endif
 
-   uSHORT       cylinders;      /* Upto 1024 */
-   uCHAR        heads;          /* Upto 255 */
-   uCHAR        sectors;        /* Upto 63 */
+   uSHORT       cylinders;      /* Up to 1024 */
+   uCHAR        heads;          /* Up to 255 */
+   uCHAR        sectors;        /* Up to 63 */
 
 #ifdef  __cplusplus
 
diff --git a/drivers/scsi/eata.c b/drivers/scsi/eata.c
index 53925ac178fd..0eb4fe6a4c8a 100644
--- a/drivers/scsi/eata.c
+++ b/drivers/scsi/eata.c
@@ -63,7 +63,7 @@
  *          ep:[y|n]      eisa_probe=[1|0]  CONFIG_EISA defined
  *          pp:[y|n]      pci_probe=[1|0]   CONFIG_PCI  defined
  *
- *          The default action is to perform probing if the corrisponding
+ *          The default action is to perform probing if the corresponding
  *          bus is configured and to skip probing otherwise.
  *
  *        + If pci_probe is in effect and a list of I/O  ports is specified
diff --git a/drivers/scsi/fcoe/fcoe_ctlr.c b/drivers/scsi/fcoe/fcoe_ctlr.c
index c93f007e702f..9d38be2a41f9 100644
--- a/drivers/scsi/fcoe/fcoe_ctlr.c
+++ b/drivers/scsi/fcoe/fcoe_ctlr.c
@@ -656,7 +656,7 @@ int fcoe_ctlr_els_send(struct fcoe_ctlr *fip, struct fc_lport *lport,
 		 * If non-FIP, we may have gotten an SID by accepting an FLOGI
 		 * from a point-to-point connection.  Switch to using
 		 * the source mac based on the SID.  The destination
-		 * MAC in this case would have been set by receving the
+		 * MAC in this case would have been set by receiving the
 		 * FLOGI.
 		 */
 		if (fip->state == FIP_ST_NON_FIP) {
@@ -1876,7 +1876,7 @@ static void fcoe_ctlr_vn_send(struct fcoe_ctlr *fip,
  * fcoe_ctlr_vn_rport_callback - Event handler for rport events.
  * @lport: The lport which is receiving the event
  * @rdata: remote port private data
- * @event: The event that occured
+ * @event: The event that occurred
  *
  * Locking Note:  The rport lock must not be held when calling this function.
  */
diff --git a/drivers/scsi/fdomain.c b/drivers/scsi/fdomain.c
index 69b7aa54f43f..643f6d500fe7 100644
--- a/drivers/scsi/fdomain.c
+++ b/drivers/scsi/fdomain.c
@@ -174,7 +174,7 @@
  Future Domain sold DOS BIOS source for $250 and the UN*X driver source was
  $750, but these required a non-disclosure agreement, so even if I could
  have afforded them, they would *not* have been useful for writing this
- publically distributable driver.  Future Domain technical support has
+ publicly distributable driver.  Future Domain technical support has
  provided some information on the phone and have sent a few useful FAXs.
  They have been much more helpful since they started to recognize that the
  word "Linux" refers to an operating system :-).
diff --git a/drivers/scsi/fnic/fnic_fcs.c b/drivers/scsi/fnic/fnic_fcs.c
index 2b48d79bad94..3c53c3478ee7 100644
--- a/drivers/scsi/fnic/fnic_fcs.c
+++ b/drivers/scsi/fnic/fnic_fcs.c
@@ -411,7 +411,7 @@ int fnic_rq_cmpl_handler(struct fnic *fnic, int rq_work_to_do)
 			err = vnic_rq_fill(&fnic->rq[i], fnic_alloc_rq_frame);
 			if (err)
 				shost_printk(KERN_ERR, fnic->lport->host,
-					     "fnic_alloc_rq_frame cant alloc"
+					     "fnic_alloc_rq_frame can't alloc"
 					     " frame\n");
 		}
 		tot_rq_work_done += cur_work_done;
diff --git a/drivers/scsi/fnic/fnic_scsi.c b/drivers/scsi/fnic/fnic_scsi.c
index 22d02404d15f..538b31c2cf58 100644
--- a/drivers/scsi/fnic/fnic_scsi.c
+++ b/drivers/scsi/fnic/fnic_scsi.c
@@ -1123,7 +1123,7 @@ void fnic_rport_exch_reset(struct fnic *fnic, u32 port_id)
 					    fc_lun.scsi_lun, io_req)) {
 			/*
 			 * Revert the cmd state back to old state, if
-			 * it hasnt changed in between. This cmd will get
+			 * it hasn't changed in between. This cmd will get
 			 * aborted later by scsi_eh, or cleaned up during
 			 * lun reset
 			 */
@@ -1208,7 +1208,7 @@ void fnic_terminate_rport_io(struct fc_rport *rport)
 					    fc_lun.scsi_lun, io_req)) {
 			/*
 			 * Revert the cmd state back to old state, if
-			 * it hasnt changed in between. This cmd will get
+			 * it hasn't changed in between. This cmd will get
 			 * aborted later by scsi_eh, or cleaned up during
 			 * lun reset
 			 */
diff --git a/drivers/scsi/g_NCR5380.c b/drivers/scsi/g_NCR5380.c
index 427a56d3117e..81182badfeb1 100644
--- a/drivers/scsi/g_NCR5380.c
+++ b/drivers/scsi/g_NCR5380.c
@@ -566,7 +566,7 @@ generic_NCR5380_biosparam(struct scsi_device *sdev, struct block_device *bdev,
  *	@dst: buffer to read into
  *	@len: buffer length
  *
- *	Perform a psuedo DMA mode read from an NCR53C400 or equivalent
+ *	Perform a pseudo DMA mode read from an NCR53C400 or equivalent
  *	controller
  */
  
@@ -650,7 +650,7 @@ static inline int NCR5380_pread(struct Scsi_Host *instance, unsigned char *dst,
  *	@dst: buffer to read into
  *	@len: buffer length
  *
- *	Perform a psuedo DMA mode read from an NCR53C400 or equivalent
+ *	Perform a pseudo DMA mode read from an NCR53C400 or equivalent
  *	controller
  */
 
diff --git a/drivers/scsi/gdth.h b/drivers/scsi/gdth.h
index 120a0625a7b5..d969855ac64a 100644
--- a/drivers/scsi/gdth.h
+++ b/drivers/scsi/gdth.h
@@ -895,7 +895,7 @@ typedef struct {
         u8          ldr_no;                 /* log. drive no. */
         u8          rw_attribs;             /* r/w attributes */
         u8          cluster_type;           /* cluster properties */
-        u8          media_changed;          /* Flag:MOUNT/UNMOUNT occured */
+        u8          media_changed;          /* Flag:MOUNT/UNMOUNT occurred */
         u32         start_sec;              /* start sector */
     } hdr[MAX_LDRIVES];                         /* host drives */
     struct {
diff --git a/drivers/scsi/gvp11.c b/drivers/scsi/gvp11.c
index 2ce26eb7a1ec..50bb54150a78 100644
--- a/drivers/scsi/gvp11.c
+++ b/drivers/scsi/gvp11.c
@@ -300,7 +300,7 @@ static int __devinit gvp11_probe(struct zorro_dev *z,
 	/*
 	 * Rumors state that some GVP ram boards use the same product
 	 * code as the SCSI controllers. Therefore if the board-size
-	 * is not 64KB we asume it is a ram board and bail out.
+	 * is not 64KB we assume it is a ram board and bail out.
 	 */
 	if (zorro_resource_len(z) != 0x10000)
 		return -ENODEV;
diff --git a/drivers/scsi/imm.c b/drivers/scsi/imm.c
index 99aa0e5699bc..26cd9d1d7571 100644
--- a/drivers/scsi/imm.c
+++ b/drivers/scsi/imm.c
@@ -3,7 +3,7 @@
  * 
  * (The IMM is the embedded controller in the ZIP Plus drive.)
  * 
- * My unoffical company acronym list is 21 pages long:
+ * My unofficial company acronym list is 21 pages long:
  *      FLA:    Four letter acronym with built in facility for
  *              future expansion to five letters.
  */
diff --git a/drivers/scsi/initio.c b/drivers/scsi/initio.c
index 9627d062e16b..dd741bcd6ccd 100644
--- a/drivers/scsi/initio.c
+++ b/drivers/scsi/initio.c
@@ -242,7 +242,7 @@ static u8 i91udftNvRam[64] =
 
 static u8 initio_rate_tbl[8] =	/* fast 20      */
 {
-				/* nanosecond devide by 4 */
+				/* nanosecond divide by 4 */
 	12,			/* 50ns,  20M   */
 	18,			/* 75ns,  13.3M */
 	25,			/* 100ns, 10M   */
@@ -1917,7 +1917,7 @@ static int int_initio_scsi_rst(struct initio_host * host)
 }
 
 /**
- *	int_initio_scsi_resel	-	Reselection occured
+ *	int_initio_scsi_resel	-	Reselection occurred
  *	@host: InitIO host adapter
  *
  *	A SCSI reselection event has been signalled and the interrupt
diff --git a/drivers/scsi/initio.h b/drivers/scsi/initio.h
index e58af9e95506..219b901bdc25 100644
--- a/drivers/scsi/initio.h
+++ b/drivers/scsi/initio.h
@@ -116,7 +116,7 @@ typedef struct {
 #define TUL_SBusId      0x89	/* 09 R   SCSI BUS ID                   */
 #define TUL_STimeOut    0x8A	/* 0A W   Sel/Resel Time Out Register   */
 #define TUL_SIdent      0x8A	/* 0A R   Identify Message Register     */
-#define TUL_SAvail      0x8A	/* 0A R   Availiable Counter Register   */
+#define TUL_SAvail      0x8A	/* 0A R   Available Counter Register   */
 #define TUL_SData       0x8B	/* 0B R/W SCSI data in/out              */
 #define TUL_SFifo       0x8C	/* 0C R/W FIFO                          */
 #define TUL_SSignal     0x90	/* 10 R/W SCSI signal in/out            */
@@ -389,7 +389,7 @@ struct scsi_ctrl_blk {
 /* Bit Definition for status */
 #define SCB_RENT        0x01
 #define SCB_PEND        0x02
-#define SCB_CONTIG      0x04	/* Contigent Allegiance */
+#define SCB_CONTIG      0x04	/* Contingent Allegiance */
 #define SCB_SELECT      0x08
 #define SCB_BUSY        0x10
 #define SCB_DONE        0x20
diff --git a/drivers/scsi/ips.c b/drivers/scsi/ips.c
index b2511acd39bd..218f71a8726e 100644
--- a/drivers/scsi/ips.c
+++ b/drivers/scsi/ips.c
@@ -137,7 +137,7 @@
 /*          - Fix path/name for scsi_hosts.h include for 2.6 kernels         */
 /*          - Fix sort order of 7k                                           */
 /*          - Remove 3 unused "inline" functions                             */
-/* 7.12.xx  - Use STATIC functions whereever possible                        */
+/* 7.12.xx  - Use STATIC functions wherever possible                        */
 /*          - Clean up deprecated MODULE_PARM calls                          */
 /* 7.12.05  - Remove Version Matching per IBM request                        */
 /*****************************************************************************/
@@ -1665,7 +1665,7 @@ ips_flash_copperhead(ips_ha_t * ha, ips_passthru_t * pt, ips_scb_t * scb)
 	int datasize;
 
 	/* Trombone is the only copperhead that can do packet flash, but only
-	 * for firmware. No one said it had to make sence. */
+	 * for firmware. No one said it had to make sense. */
 	if (IPS_IS_TROMBONE(ha) && pt->CoppCP.cmd.flashfw.type == IPS_FW_IMAGE) {
 		if (ips_usrcmd(ha, pt, scb))
 			return IPS_SUCCESS;
diff --git a/drivers/scsi/ips.h b/drivers/scsi/ips.h
index 4e49fbcfe8af..f2df0593332b 100644
--- a/drivers/scsi/ips.h
+++ b/drivers/scsi/ips.h
@@ -1193,7 +1193,7 @@ typedef struct {
 #define IPS_VER_SEBRING "7.12.02"
 #define IPS_VER_KEYWEST "7.12.02"
 
-/* Compatability IDs for various adapters */
+/* Compatibility IDs for various adapters */
 #define IPS_COMPAT_UNKNOWN ""
 #define IPS_COMPAT_CURRENT "KW710"
 #define IPS_COMPAT_SERVERAID1 "2.25.01"
diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c
index a860452a8f71..3df985305f69 100644
--- a/drivers/scsi/iscsi_tcp.c
+++ b/drivers/scsi/iscsi_tcp.c
@@ -295,7 +295,7 @@ static int iscsi_sw_tcp_xmit(struct iscsi_conn *conn)
 		rc = iscsi_sw_tcp_xmit_segment(tcp_conn, segment);
 		/*
 		 * We may not have been able to send data because the conn
-		 * is getting stopped. libiscsi will know so propogate err
+		 * is getting stopped. libiscsi will know so propagate err
 		 * for it to do the right thing.
 		 */
 		if (rc == -EAGAIN)
diff --git a/drivers/scsi/libfc/fc_exch.c b/drivers/scsi/libfc/fc_exch.c
index 28231badd9e6..77035a746f60 100644
--- a/drivers/scsi/libfc/fc_exch.c
+++ b/drivers/scsi/libfc/fc_exch.c
@@ -1042,7 +1042,7 @@ static void fc_exch_set_addr(struct fc_exch *ep,
 }
 
 /**
- * fc_seq_els_rsp_send() - Send an ELS response using infomation from
+ * fc_seq_els_rsp_send() - Send an ELS response using information from
  *			   the existing sequence/exchange.
  * @fp:	      The received frame
  * @els_cmd:  The ELS command to be sent
@@ -1153,7 +1153,7 @@ static void fc_seq_send_ack(struct fc_seq *sp, const struct fc_frame *rx_fp)
  * fc_exch_send_ba_rjt() - Send BLS Reject
  * @rx_fp:  The frame being rejected
  * @reason: The reason the frame is being rejected
- * @explan: The explaination for the rejection
+ * @explan: The explanation for the rejection
  *
  * This is for rejecting BA_ABTS only.
  */
diff --git a/drivers/scsi/libfc/fc_fcp.c b/drivers/scsi/libfc/fc_fcp.c
index b1b03af158bf..5b799a37ad09 100644
--- a/drivers/scsi/libfc/fc_fcp.c
+++ b/drivers/scsi/libfc/fc_fcp.c
@@ -870,7 +870,7 @@ static void fc_fcp_resp(struct fc_fcp_pkt *fsp, struct fc_frame *fp)
 				fsp->scsi_resid = ntohl(rp_ex->fr_resid);
 				/*
 				 * The cmnd->underflow is the minimum number of
-				 * bytes that must be transfered for this
+				 * bytes that must be transferred for this
 				 * command.  Provided a sense condition is not
 				 * present, make sure the actual amount
 				 * transferred is at least the underflow value
@@ -1306,7 +1306,7 @@ static int fc_lun_reset(struct fc_lport *lport, struct fc_fcp_pkt *fsp,
 }
 
 /**
- * fc_tm_done() - Task Managment response handler
+ * fc_tm_done() - Task Management response handler
  * @seq: The sequence that the response is on
  * @fp:	 The response frame
  * @arg: The FCP packet the response is for
diff --git a/drivers/scsi/libfc/fc_lport.c b/drivers/scsi/libfc/fc_lport.c
index 8c08b210001d..906bbcad0e2d 100644
--- a/drivers/scsi/libfc/fc_lport.c
+++ b/drivers/scsi/libfc/fc_lport.c
@@ -52,7 +52,7 @@
  * while making the callback. To ensure that the rport is not free'd while
  * processing the callback the rport callbacks are serialized through a
  * single-threaded workqueue. An rport would never be free'd while in a
- * callback handler becuase no other rport work in this queue can be executed
+ * callback handler because no other rport work in this queue can be executed
  * at the same time.
  *
  * When discovery succeeds or fails a callback is made to the lport as
@@ -163,7 +163,7 @@ static int fc_frame_drop(struct fc_lport *lport, struct fc_frame *fp)
  * fc_lport_rport_callback() - Event handler for rport events
  * @lport: The lport which is receiving the event
  * @rdata: private remote port data
- * @event: The event that occured
+ * @event: The event that occurred
  *
  * Locking Note: The rport lock should not be held when calling
  *		 this function.
@@ -379,7 +379,7 @@ static void fc_lport_add_fc4_type(struct fc_lport *lport, enum fc_fh_type type)
 
 /**
  * fc_lport_recv_rlir_req() - Handle received Registered Link Incident Report.
- * @lport: Fibre Channel local port recieving the RLIR
+ * @lport: Fibre Channel local port receiving the RLIR
  * @fp:	   The RLIR request frame
  *
  * Locking Note: The lport lock is expected to be held before calling
@@ -396,7 +396,7 @@ static void fc_lport_recv_rlir_req(struct fc_lport *lport, struct fc_frame *fp)
 
 /**
  * fc_lport_recv_echo_req() - Handle received ECHO request
- * @lport: The local port recieving the ECHO
+ * @lport: The local port receiving the ECHO
  * @fp:	   ECHO request frame
  *
  * Locking Note: The lport lock is expected to be held before calling
@@ -432,7 +432,7 @@ static void fc_lport_recv_echo_req(struct fc_lport *lport,
 
 /**
  * fc_lport_recv_rnid_req() - Handle received Request Node ID data request
- * @lport: The local port recieving the RNID
+ * @lport: The local port receiving the RNID
  * @fp:	   The RNID request frame
  *
  * Locking Note: The lport lock is expected to be held before calling
@@ -491,7 +491,7 @@ static void fc_lport_recv_rnid_req(struct fc_lport *lport,
 
 /**
  * fc_lport_recv_logo_req() - Handle received fabric LOGO request
- * @lport: The local port recieving the LOGO
+ * @lport: The local port receiving the LOGO
  * @fp:	   The LOGO request frame
  *
  * Locking Note: The lport lock is exected to be held before calling
@@ -771,7 +771,7 @@ EXPORT_SYMBOL(fc_lport_set_local_id);
 
 /**
  * fc_lport_recv_flogi_req() - Receive a FLOGI request
- * @lport: The local port that recieved the request
+ * @lport: The local port that received the request
  * @rx_fp: The FLOGI frame
  *
  * A received FLOGI request indicates a point-to-point connection.
@@ -858,7 +858,7 @@ out:
  * if an rport should handle the request.
  *
  * Locking Note: This function should not be called with the lport
- *		 lock held becuase it will grab the lock.
+ *		 lock held because it will grab the lock.
  */
 static void fc_lport_recv_els_req(struct fc_lport *lport,
 				  struct fc_frame *fp)
@@ -925,7 +925,7 @@ struct fc4_prov fc_lport_els_prov = {
  * @fp: The frame the request is in
  *
  * Locking Note: This function should not be called with the lport
- *		 lock held becuase it may grab the lock.
+ *		 lock held because it may grab the lock.
  */
 static void fc_lport_recv_req(struct fc_lport *lport,
 			      struct fc_frame *fp)
diff --git a/drivers/scsi/libiscsi_tcp.c b/drivers/scsi/libiscsi_tcp.c
index 8eeb39ffa37f..e98ae33f1295 100644
--- a/drivers/scsi/libiscsi_tcp.c
+++ b/drivers/scsi/libiscsi_tcp.c
@@ -132,14 +132,25 @@ static void iscsi_tcp_segment_map(struct iscsi_segment *segment, int recv)
 	if (page_count(sg_page(sg)) >= 1 && !recv)
 		return;
 
-	segment->sg_mapped = kmap_atomic(sg_page(sg), KM_SOFTIRQ0);
+	if (recv) {
+		segment->atomic_mapped = true;
+		segment->sg_mapped = kmap_atomic(sg_page(sg), KM_SOFTIRQ0);
+	} else {
+		segment->atomic_mapped = false;
+		/* the xmit path can sleep with the page mapped so use kmap */
+		segment->sg_mapped = kmap(sg_page(sg));
+	}
+
 	segment->data = segment->sg_mapped + sg->offset + segment->sg_offset;
 }
 
 void iscsi_tcp_segment_unmap(struct iscsi_segment *segment)
 {
 	if (segment->sg_mapped) {
-		kunmap_atomic(segment->sg_mapped, KM_SOFTIRQ0);
+		if (segment->atomic_mapped)
+			kunmap_atomic(segment->sg_mapped, KM_SOFTIRQ0);
+		else
+			kunmap(sg_page(segment->sg));
 		segment->sg_mapped = NULL;
 		segment->data = NULL;
 	}
diff --git a/drivers/scsi/libsas/sas_expander.c b/drivers/scsi/libsas/sas_expander.c
index f3f693b772ac..874e29d9533f 100644
--- a/drivers/scsi/libsas/sas_expander.c
+++ b/drivers/scsi/libsas/sas_expander.c
@@ -240,7 +240,7 @@ static int sas_ex_phy_discover_helper(struct domain_device *dev, u8 *disc_req,
 				       disc_resp, DISCOVER_RESP_SIZE);
 		if (res)
 			return res;
-		/* This is detecting a failure to transmit inital
+		/* This is detecting a failure to transmit initial
 		 * dev to host FIS as described in section G.5 of
 		 * sas-2 r 04b */
 		dr = &((struct smp_resp *)disc_resp)->disc;
diff --git a/drivers/scsi/lpfc/Makefile b/drivers/scsi/lpfc/Makefile
index 14de249917f8..88928f00aa2d 100644
--- a/drivers/scsi/lpfc/Makefile
+++ b/drivers/scsi/lpfc/Makefile
@@ -1,7 +1,7 @@
 #/*******************************************************************
 # * This file is part of the Emulex Linux Device Driver for         *
 # * Fibre Channel Host Bus Adapters.                                *
-# * Copyright (C) 2004-2006 Emulex.  All rights reserved.           *
+# * Copyright (C) 2004-2011 Emulex.  All rights reserved.           *
 # * EMULEX and SLI are trademarks of Emulex.                        *
 # * www.emulex.com                                                  *
 # *                                                                 *
diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h
index b64c6da870d3..60e98a62f308 100644
--- a/drivers/scsi/lpfc/lpfc.h
+++ b/drivers/scsi/lpfc/lpfc.h
@@ -539,6 +539,8 @@ struct lpfc_hba {
 		(struct lpfc_hba *, uint32_t);
 	int (*lpfc_hba_down_link)
 		(struct lpfc_hba *, uint32_t);
+	int (*lpfc_selective_reset)
+		(struct lpfc_hba *);
 
 	/* SLI4 specific HBA data structure */
 	struct lpfc_sli4_hba sli4_hba;
@@ -895,7 +897,18 @@ lpfc_worker_wake_up(struct lpfc_hba *phba)
 	return;
 }
 
-static inline void
+static inline int
+lpfc_readl(void __iomem *addr, uint32_t *data)
+{
+	uint32_t temp;
+	temp = readl(addr);
+	if (temp == 0xffffffff)
+		return -EIO;
+	*data = temp;
+	return 0;
+}
+
+static inline int
 lpfc_sli_read_hs(struct lpfc_hba *phba)
 {
 	/*
@@ -904,15 +917,17 @@ lpfc_sli_read_hs(struct lpfc_hba *phba)
 	 */
 	phba->sli.slistat.err_attn_event++;
 
-	/* Save status info */
-	phba->work_hs = readl(phba->HSregaddr);
-	phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
-	phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
+	/* Save status info and check for unplug error */
+	if (lpfc_readl(phba->HSregaddr, &phba->work_hs) ||
+		lpfc_readl(phba->MBslimaddr + 0xa8, &phba->work_status[0]) ||
+		lpfc_readl(phba->MBslimaddr + 0xac, &phba->work_status[1])) {
+		return -EIO;
+	}
 
 	/* Clear chip Host Attention error bit */
 	writel(HA_ERATT, phba->HAregaddr);
 	readl(phba->HAregaddr); /* flush */
 	phba->pport->stopped = 1;
 
-	return;
+	return 0;
 }
diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c
index e7c020df12fa..17d789325f40 100644
--- a/drivers/scsi/lpfc/lpfc_attr.c
+++ b/drivers/scsi/lpfc/lpfc_attr.c
@@ -685,7 +685,7 @@ lpfc_do_offline(struct lpfc_hba *phba, uint32_t type)
  * -EIO reset not configured or error posting the event
  * zero for success
  **/
-static int
+int
 lpfc_selective_reset(struct lpfc_hba *phba)
 {
 	struct completion online_compl;
@@ -746,7 +746,7 @@ lpfc_issue_reset(struct device *dev, struct device_attribute *attr,
 	int status = -EINVAL;
 
 	if (strncmp(buf, "selective", sizeof("selective") - 1) == 0)
-		status = lpfc_selective_reset(phba);
+		status = phba->lpfc_selective_reset(phba);
 
 	if (status == 0)
 		return strlen(buf);
@@ -1224,7 +1224,10 @@ lpfc_poll_store(struct device *dev, struct device_attribute *attr,
 	if (val & ENABLE_FCP_RING_POLLING) {
 		if ((val & DISABLE_FCP_RING_INT) &&
 		    !(old_val & DISABLE_FCP_RING_INT)) {
-			creg_val = readl(phba->HCregaddr);
+			if (lpfc_readl(phba->HCregaddr, &creg_val)) {
+				spin_unlock_irq(&phba->hbalock);
+				return -EINVAL;
+			}
 			creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
 			writel(creg_val, phba->HCregaddr);
 			readl(phba->HCregaddr); /* flush */
@@ -1242,7 +1245,10 @@ lpfc_poll_store(struct device *dev, struct device_attribute *attr,
 		spin_unlock_irq(&phba->hbalock);
 		del_timer(&phba->fcp_poll_timer);
 		spin_lock_irq(&phba->hbalock);
-		creg_val = readl(phba->HCregaddr);
+		if (lpfc_readl(phba->HCregaddr, &creg_val)) {
+			spin_unlock_irq(&phba->hbalock);
+			return -EINVAL;
+		}
 		creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
 		writel(creg_val, phba->HCregaddr);
 		readl(phba->HCregaddr); /* flush */
@@ -4509,7 +4515,7 @@ static FC_RPORT_ATTR(field, S_IRUGO, lpfc_show_rport_##field, NULL)
  * Description:
  * This function is called by the transport after the @fc_vport's symbolic name
  * has been changed. This function re-registers the symbolic name with the
- * switch to propogate the change into the fabric if the vport is active.
+ * switch to propagate the change into the fabric if the vport is active.
  **/
 static void
 lpfc_set_vport_symbolic_name(struct fc_vport *fc_vport)
diff --git a/drivers/scsi/lpfc/lpfc_bsg.c b/drivers/scsi/lpfc/lpfc_bsg.c
index 0dd43bb91618..77b2871d96b7 100644
--- a/drivers/scsi/lpfc/lpfc_bsg.c
+++ b/drivers/scsi/lpfc/lpfc_bsg.c
@@ -1,7 +1,7 @@
 /*******************************************************************
  * This file is part of the Emulex Linux Device Driver for         *
  * Fibre Channel Host Bus Adapters.                                *
- * Copyright (C) 2009-2010 Emulex.  All rights reserved.                *
+ * Copyright (C) 2009-2011 Emulex.  All rights reserved.           *
  * EMULEX and SLI are trademarks of Emulex.                        *
  * www.emulex.com                                                  *
  *                                                                 *
@@ -348,7 +348,10 @@ lpfc_bsg_send_mgmt_cmd(struct fc_bsg_job *job)
 	dd_data->context_un.iocb.bmp = bmp;
 
 	if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
-		creg_val = readl(phba->HCregaddr);
+		if (lpfc_readl(phba->HCregaddr, &creg_val)) {
+			rc = -EIO ;
+			goto free_cmdiocbq;
+		}
 		creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
 		writel(creg_val, phba->HCregaddr);
 		readl(phba->HCregaddr); /* flush */
@@ -599,7 +602,10 @@ lpfc_bsg_rport_els(struct fc_bsg_job *job)
 	dd_data->context_un.iocb.ndlp = ndlp;
 
 	if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
-		creg_val = readl(phba->HCregaddr);
+		if (lpfc_readl(phba->HCregaddr, &creg_val)) {
+			rc = -EIO;
+			goto linkdown_err;
+		}
 		creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
 		writel(creg_val, phba->HCregaddr);
 		readl(phba->HCregaddr); /* flush */
@@ -613,6 +619,7 @@ lpfc_bsg_rport_els(struct fc_bsg_job *job)
 	else
 		rc = -EIO;
 
+linkdown_err:
 	pci_unmap_sg(phba->pcidev, job->request_payload.sg_list,
 		     job->request_payload.sg_cnt, DMA_TO_DEVICE);
 	pci_unmap_sg(phba->pcidev, job->reply_payload.sg_list,
@@ -1357,7 +1364,10 @@ lpfc_issue_ct_rsp(struct lpfc_hba *phba, struct fc_bsg_job *job, uint32_t tag,
 	dd_data->context_un.iocb.ndlp = ndlp;
 
 	if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
-		creg_val = readl(phba->HCregaddr);
+		if (lpfc_readl(phba->HCregaddr, &creg_val)) {
+			rc = -IOCB_ERROR;
+			goto issue_ct_rsp_exit;
+		}
 		creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
 		writel(creg_val, phba->HCregaddr);
 		readl(phba->HCregaddr); /* flush */
@@ -1929,7 +1939,7 @@ out:
  * @rxxri: Receive exchange id
  * @len: Number of data bytes
  *
- * This function allocates and posts a data buffer of sufficient size to recieve
+ * This function allocates and posts a data buffer of sufficient size to receive
  * an unsolicted CT command.
  **/
 static int lpfcdiag_loop_post_rxbufs(struct lpfc_hba *phba, uint16_t rxxri,
@@ -2479,16 +2489,18 @@ lpfc_bsg_wake_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
 
 	from = (uint8_t *)dd_data->context_un.mbox.mb;
 	job = dd_data->context_un.mbox.set_job;
-	size = job->reply_payload.payload_len;
-	job->reply->reply_payload_rcv_len =
-		sg_copy_from_buffer(job->reply_payload.sg_list,
-				job->reply_payload.sg_cnt,
-				from, size);
-	job->reply->result = 0;
+	if (job) {
+		size = job->reply_payload.payload_len;
+		job->reply->reply_payload_rcv_len =
+			sg_copy_from_buffer(job->reply_payload.sg_list,
+					job->reply_payload.sg_cnt,
+					from, size);
+		job->reply->result = 0;
 
+		job->dd_data = NULL;
+		job->job_done(job);
+	}
 	dd_data->context_un.mbox.set_job = NULL;
-	job->dd_data = NULL;
-	job->job_done(job);
 	/* need to hold the lock until we call job done to hold off
 	 * the timeout handler returning to the midlayer while
 	 * we are stillprocessing the job
diff --git a/drivers/scsi/lpfc/lpfc_crtn.h b/drivers/scsi/lpfc/lpfc_crtn.h
index 3d40023f4804..f0b332f4eedb 100644
--- a/drivers/scsi/lpfc/lpfc_crtn.h
+++ b/drivers/scsi/lpfc/lpfc_crtn.h
@@ -1,7 +1,7 @@
 /*******************************************************************
  * This file is part of the Emulex Linux Device Driver for         *
  * Fibre Channel Host Bus Adapters.                                *
- * Copyright (C) 2004-2010 Emulex.  All rights reserved.           *
+ * Copyright (C) 2004-2011 Emulex.  All rights reserved.           *
  * EMULEX and SLI are trademarks of Emulex.                        *
  * www.emulex.com                                                  *
  *                                                                 *
@@ -254,8 +254,8 @@ uint16_t lpfc_sli_next_iotag(struct lpfc_hba *, struct lpfc_iocbq *);
 void lpfc_sli_cancel_iocbs(struct lpfc_hba *, struct list_head *, uint32_t,
 			   uint32_t);
 void lpfc_sli_wake_mbox_wait(struct lpfc_hba *, LPFC_MBOXQ_t *);
-
-void lpfc_reset_barrier(struct lpfc_hba * phba);
+int lpfc_selective_reset(struct lpfc_hba *);
+void lpfc_reset_barrier(struct lpfc_hba *);
 int lpfc_sli_brdready(struct lpfc_hba *, uint32_t);
 int lpfc_sli_brdkill(struct lpfc_hba *);
 int lpfc_sli_brdreset(struct lpfc_hba *);
diff --git a/drivers/scsi/lpfc/lpfc_debugfs.c b/drivers/scsi/lpfc/lpfc_debugfs.c
index a753581509d6..3d967741c708 100644
--- a/drivers/scsi/lpfc/lpfc_debugfs.c
+++ b/drivers/scsi/lpfc/lpfc_debugfs.c
@@ -908,7 +908,7 @@ lpfc_debugfs_dumpData_open(struct inode *inode, struct file *file)
 	if (!debug)
 		goto out;
 
-	/* Round to page boundry */
+	/* Round to page boundary */
 	printk(KERN_ERR "9059 BLKGRD:  %s: _dump_buf_data=0x%p\n",
 			__func__, _dump_buf_data);
 	debug->buffer = _dump_buf_data;
@@ -938,7 +938,7 @@ lpfc_debugfs_dumpDif_open(struct inode *inode, struct file *file)
 	if (!debug)
 		goto out;
 
-	/* Round to page boundry */
+	/* Round to page boundary */
 	printk(KERN_ERR	"9060 BLKGRD: %s: _dump_buf_dif=0x%p file=%s\n",
 		__func__, _dump_buf_dif, file->f_dentry->d_name.name);
 	debug->buffer = _dump_buf_dif;
@@ -2158,7 +2158,7 @@ lpfc_debugfs_initialize(struct lpfc_vport *vport)
 			debugfs_create_dir(name, phba->hba_debugfs_root);
 		if (!vport->vport_debugfs_root) {
 			lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
-					 "0417 Cant create debugfs\n");
+					 "0417 Can't create debugfs\n");
 			goto debug_failed;
 		}
 		atomic_inc(&phba->debugfs_vport_count);
@@ -2211,7 +2211,7 @@ lpfc_debugfs_initialize(struct lpfc_vport *vport)
 				 vport, &lpfc_debugfs_op_nodelist);
 	if (!vport->debug_nodelist) {
 		lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
-				 "0409 Cant create debugfs nodelist\n");
+				 "0409 Can't create debugfs nodelist\n");
 		goto debug_failed;
 	}
 
diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c
index 8e28edf9801e..d34b69f9cdb1 100644
--- a/drivers/scsi/lpfc/lpfc_els.c
+++ b/drivers/scsi/lpfc/lpfc_els.c
@@ -89,7 +89,8 @@ lpfc_els_chk_latt(struct lpfc_vport *vport)
 		return 0;
 
 	/* Read the HBA Host Attention Register */
-	ha_copy = readl(phba->HAregaddr);
+	if (lpfc_readl(phba->HAregaddr, &ha_copy))
+		return 1;
 
 	if (!(ha_copy & HA_LATT))
 		return 0;
@@ -101,7 +102,7 @@ lpfc_els_chk_latt(struct lpfc_vport *vport)
 			 phba->pport->port_state);
 
 	/* CLEAR_LA should re-enable link attention events and
-	 * we should then imediately take a LATT event. The
+	 * we should then immediately take a LATT event. The
 	 * LATT processing should call lpfc_linkdown() which
 	 * will cleanup any left over in-progress discovery
 	 * events.
@@ -1598,7 +1599,7 @@ out:
  * This routine is the completion callback function for issuing the Port
  * Login (PLOGI) command. For PLOGI completion, there must be an active
  * ndlp on the vport node list that matches the remote node ID from the
- * PLOGI reponse IOCB. If such ndlp does not exist, the PLOGI is simply
+ * PLOGI response IOCB. If such ndlp does not exist, the PLOGI is simply
  * ignored and command IOCB released. The PLOGI response IOCB status is
  * checked for error conditons. If there is error status reported, PLOGI
  * retry shall be attempted by invoking the lpfc_els_retry() routine.
diff --git a/drivers/scsi/lpfc/lpfc_hbadisc.c b/drivers/scsi/lpfc/lpfc_hbadisc.c
index 154c715fb3af..301498301a8f 100644
--- a/drivers/scsi/lpfc/lpfc_hbadisc.c
+++ b/drivers/scsi/lpfc/lpfc_hbadisc.c
@@ -739,7 +739,7 @@ lpfc_do_work(void *p)
 
 /*
  * This is only called to handle FC worker events. Since this a rare
- * occurance, we allocate a struct lpfc_work_evt structure here instead of
+ * occurrence, we allocate a struct lpfc_work_evt structure here instead of
  * embedding it in the IOCB.
  */
 int
@@ -1348,7 +1348,7 @@ lpfc_register_fcf(struct lpfc_hba *phba)
 	int rc;
 
 	spin_lock_irq(&phba->hbalock);
-	/* If the FCF is not availabe do nothing. */
+	/* If the FCF is not available do nothing. */
 	if (!(phba->fcf.fcf_flag & FCF_AVAILABLE)) {
 		phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG);
 		spin_unlock_irq(&phba->hbalock);
@@ -1538,7 +1538,7 @@ lpfc_match_fcf_conn_list(struct lpfc_hba *phba,
 
 		/*
 		 * If user did not specify any addressing mode, or if the
-		 * prefered addressing mode specified by user is not supported
+		 * preferred addressing mode specified by user is not supported
 		 * by FCF, allow fabric to pick the addressing mode.
 		 */
 		*addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,
@@ -1553,7 +1553,7 @@ lpfc_match_fcf_conn_list(struct lpfc_hba *phba,
 				FCFCNCT_AM_SPMA) ?
 				LPFC_FCF_SPMA : LPFC_FCF_FPMA;
 		/*
-		 * If the user specified a prefered address mode, use the
+		 * If the user specified a preferred address mode, use the
 		 * addr mode only if FCF support the addr_mode.
 		 */
 		else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
@@ -3117,7 +3117,7 @@ lpfc_mbx_cmpl_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
 		 * back at reg login state so this
 		 * mbox needs to be ignored becase
 		 * there is another reg login in
-		 * proccess.
+		 * process.
 		 */
 		spin_lock_irq(shost->host_lock);
 		ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
@@ -4477,7 +4477,7 @@ lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did)
 	if ((vport->fc_flag & FC_RSCN_MODE) &&
 	    !(vport->fc_flag & FC_NDISC_ACTIVE)) {
 		if (lpfc_rscn_payload_check(vport, did)) {
-			/* If we've already recieved a PLOGI from this NPort
+			/* If we've already received a PLOGI from this NPort
 			 * we don't need to try to discover it again.
 			 */
 			if (ndlp->nlp_flag & NLP_RCV_PLOGI)
@@ -4493,7 +4493,7 @@ lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did)
 		} else
 			ndlp = NULL;
 	} else {
-		/* If we've already recieved a PLOGI from this NPort,
+		/* If we've already received a PLOGI from this NPort,
 		 * or we are already in the process of discovery on it,
 		 * we don't need to try to discover it again.
 		 */
@@ -5756,7 +5756,7 @@ lpfc_read_fcoe_param(struct lpfc_hba *phba,
  * @size: Size of the data buffer.
  * @rec_type: Record type to be searched.
  *
- * This function searches config region data to find the begining
+ * This function searches config region data to find the beginning
  * of the record specified by record_type. If record found, this
  * function return pointer to the record else return NULL.
  */
diff --git a/drivers/scsi/lpfc/lpfc_hw.h b/drivers/scsi/lpfc/lpfc_hw.h
index 94ae37c5111a..95f11ed79463 100644
--- a/drivers/scsi/lpfc/lpfc_hw.h
+++ b/drivers/scsi/lpfc/lpfc_hw.h
@@ -1344,7 +1344,7 @@ typedef struct {		/* FireFly BIU registers */
 #define HS_FFER1       0x80000000	/* Bit 31 */
 #define HS_CRIT_TEMP   0x00000100	/* Bit 8  */
 #define HS_FFERM       0xFF000100	/* Mask for error bits 31:24 and 8 */
-
+#define UNPLUG_ERR     0x00000001	/* Indicate pci hot unplug */
 /* Host Control Register */
 
 #define HC_REG_OFFSET  12	/* Byte offset from register base address */
@@ -1713,6 +1713,17 @@ struct lpfc_pde6 {
 #define pde6_apptagval_WORD	word2
 };
 
+struct lpfc_pde7 {
+	uint32_t word0;
+#define pde7_type_SHIFT		24
+#define pde7_type_MASK		0x000000ff
+#define pde7_type_WORD		word0
+#define pde7_rsvd0_SHIFT	0
+#define pde7_rsvd0_MASK		0x00ffffff
+#define pde7_rsvd0_WORD		word0
+	uint32_t addrHigh;
+	uint32_t addrLow;
+};
 
 /* Structure for MB Command LOAD_SM and DOWN_LOAD */
 
@@ -3621,7 +3632,7 @@ typedef struct _IOCB {	/* IOCB structure */
 		ASYNCSTAT_FIELDS asyncstat; /* async_status iocb */
 		QUE_XRI64_CX_FIELDS quexri64cx; /* que_xri64_cx fields */
 		struct rcv_seq64 rcvseq64;	/* RCV_SEQ64 and RCV_CONT64 */
-		struct sli4_bls_acc bls_acc; /* UNSOL ABTS BLS_ACC params */
+		struct sli4_bls_rsp bls_rsp; /* UNSOL ABTS BLS_RSP params */
 		uint32_t ulpWord[IOCB_WORD_SZ - 2];	/* generic 6 'words' */
 	} un;
 	union {
diff --git a/drivers/scsi/lpfc/lpfc_hw4.h b/drivers/scsi/lpfc/lpfc_hw4.h
index c7178d60c7bf..8433ac0d9fb4 100644
--- a/drivers/scsi/lpfc/lpfc_hw4.h
+++ b/drivers/scsi/lpfc/lpfc_hw4.h
@@ -215,7 +215,7 @@ struct lpfc_sli4_flags {
 #define lpfc_fip_flag_WORD word0
 };
 
-struct sli4_bls_acc {
+struct sli4_bls_rsp {
 	uint32_t word0_rsvd;      /* Word0 must be reserved */
 	uint32_t word1;
 #define lpfc_abts_orig_SHIFT      0
@@ -231,6 +231,16 @@ struct sli4_bls_acc {
 #define lpfc_abts_oxid_MASK       0x0000FFFF
 #define lpfc_abts_oxid_WORD       word2
 	uint32_t word3;
+#define lpfc_vndr_code_SHIFT	0
+#define lpfc_vndr_code_MASK	0x000000FF
+#define lpfc_vndr_code_WORD	word3
+#define lpfc_rsn_expln_SHIFT	8
+#define lpfc_rsn_expln_MASK	0x000000FF
+#define lpfc_rsn_expln_WORD	word3
+#define lpfc_rsn_code_SHIFT	16
+#define lpfc_rsn_code_MASK	0x000000FF
+#define lpfc_rsn_code_WORD	word3
+
 	uint32_t word4;
 	uint32_t word5_rsvd;	/* Word5 must be reserved */
 };
@@ -711,21 +721,27 @@ struct lpfc_sli4_cfg_mhdr {
 union lpfc_sli4_cfg_shdr {
 	struct {
 		uint32_t word6;
-#define lpfc_mbox_hdr_opcode_SHIFT		0
-#define lpfc_mbox_hdr_opcode_MASK		0x000000FF
-#define lpfc_mbox_hdr_opcode_WORD		word6
-#define lpfc_mbox_hdr_subsystem_SHIFT		8
-#define lpfc_mbox_hdr_subsystem_MASK		0x000000FF
-#define lpfc_mbox_hdr_subsystem_WORD		word6
-#define lpfc_mbox_hdr_port_number_SHIFT		16
-#define lpfc_mbox_hdr_port_number_MASK		0x000000FF
-#define lpfc_mbox_hdr_port_number_WORD		word6
-#define lpfc_mbox_hdr_domain_SHIFT		24
-#define lpfc_mbox_hdr_domain_MASK		0x000000FF
-#define lpfc_mbox_hdr_domain_WORD		word6
+#define lpfc_mbox_hdr_opcode_SHIFT	0
+#define lpfc_mbox_hdr_opcode_MASK	0x000000FF
+#define lpfc_mbox_hdr_opcode_WORD	word6
+#define lpfc_mbox_hdr_subsystem_SHIFT	8
+#define lpfc_mbox_hdr_subsystem_MASK	0x000000FF
+#define lpfc_mbox_hdr_subsystem_WORD	word6
+#define lpfc_mbox_hdr_port_number_SHIFT	16
+#define lpfc_mbox_hdr_port_number_MASK	0x000000FF
+#define lpfc_mbox_hdr_port_number_WORD	word6
+#define lpfc_mbox_hdr_domain_SHIFT	24
+#define lpfc_mbox_hdr_domain_MASK	0x000000FF
+#define lpfc_mbox_hdr_domain_WORD	word6
 		uint32_t timeout;
 		uint32_t request_length;
-		uint32_t reserved9;
+		uint32_t word9;
+#define lpfc_mbox_hdr_version_SHIFT	0
+#define lpfc_mbox_hdr_version_MASK	0x000000FF
+#define lpfc_mbox_hdr_version_WORD	word9
+#define LPFC_Q_CREATE_VERSION_2	2
+#define LPFC_Q_CREATE_VERSION_1	1
+#define LPFC_Q_CREATE_VERSION_0	0
 	} request;
 	struct {
 		uint32_t word6;
@@ -917,9 +933,12 @@ struct cq_context {
 #define LPFC_CQ_CNT_512		0x1
 #define LPFC_CQ_CNT_1024	0x2
 	uint32_t word1;
-#define lpfc_cq_eq_id_SHIFT		22
+#define lpfc_cq_eq_id_SHIFT		22	/* Version 0 Only */
 #define lpfc_cq_eq_id_MASK		0x000000FF
 #define lpfc_cq_eq_id_WORD		word1
+#define lpfc_cq_eq_id_2_SHIFT		0 	/* Version 2 Only */
+#define lpfc_cq_eq_id_2_MASK		0x0000FFFF
+#define lpfc_cq_eq_id_2_WORD		word1
 	uint32_t reserved0;
 	uint32_t reserved1;
 };
@@ -929,6 +948,9 @@ struct lpfc_mbx_cq_create {
 	union {
 		struct {
 			uint32_t word0;
+#define lpfc_mbx_cq_create_page_size_SHIFT	16	/* Version 2 Only */
+#define lpfc_mbx_cq_create_page_size_MASK	0x000000FF
+#define lpfc_mbx_cq_create_page_size_WORD	word0
 #define lpfc_mbx_cq_create_num_pages_SHIFT	0
 #define lpfc_mbx_cq_create_num_pages_MASK	0x0000FFFF
 #define lpfc_mbx_cq_create_num_pages_WORD	word0
@@ -969,7 +991,7 @@ struct wq_context {
 struct lpfc_mbx_wq_create {
 	struct mbox_header header;
 	union {
-		struct {
+		struct {	/* Version 0 Request */
 			uint32_t word0;
 #define lpfc_mbx_wq_create_num_pages_SHIFT	0
 #define lpfc_mbx_wq_create_num_pages_MASK	0x0000FFFF
@@ -979,6 +1001,23 @@ struct lpfc_mbx_wq_create {
 #define lpfc_mbx_wq_create_cq_id_WORD		word0
 			struct dma_address page[LPFC_MAX_WQ_PAGE];
 		} request;
+		struct {	/* Version 1 Request */
+			uint32_t word0;	/* Word 0 is the same as in v0 */
+			uint32_t word1;
+#define lpfc_mbx_wq_create_page_size_SHIFT	0
+#define lpfc_mbx_wq_create_page_size_MASK	0x000000FF
+#define lpfc_mbx_wq_create_page_size_WORD	word1
+#define lpfc_mbx_wq_create_wqe_size_SHIFT	8
+#define lpfc_mbx_wq_create_wqe_size_MASK	0x0000000F
+#define lpfc_mbx_wq_create_wqe_size_WORD	word1
+#define LPFC_WQ_WQE_SIZE_64	0x5
+#define LPFC_WQ_WQE_SIZE_128	0x6
+#define lpfc_mbx_wq_create_wqe_count_SHIFT	16
+#define lpfc_mbx_wq_create_wqe_count_MASK	0x0000FFFF
+#define lpfc_mbx_wq_create_wqe_count_WORD	word1
+			uint32_t word2;
+			struct dma_address page[LPFC_MAX_WQ_PAGE-1];
+		} request_1;
 		struct {
 			uint32_t word0;
 #define lpfc_mbx_wq_create_q_id_SHIFT	0
@@ -1007,13 +1046,22 @@ struct lpfc_mbx_wq_destroy {
 #define LPFC_DATA_BUF_SIZE 2048
 struct rq_context {
 	uint32_t word0;
-#define lpfc_rq_context_rq_size_SHIFT	16
-#define lpfc_rq_context_rq_size_MASK	0x0000000F
-#define lpfc_rq_context_rq_size_WORD	word0
+#define lpfc_rq_context_rqe_count_SHIFT	16	/* Version 0 Only */
+#define lpfc_rq_context_rqe_count_MASK	0x0000000F
+#define lpfc_rq_context_rqe_count_WORD	word0
 #define LPFC_RQ_RING_SIZE_512		9	/* 512 entries */
 #define LPFC_RQ_RING_SIZE_1024		10	/* 1024 entries */
 #define LPFC_RQ_RING_SIZE_2048		11	/* 2048 entries */
 #define LPFC_RQ_RING_SIZE_4096		12	/* 4096 entries */
+#define lpfc_rq_context_rqe_count_1_SHIFT	16	/* Version 1 Only */
+#define lpfc_rq_context_rqe_count_1_MASK	0x0000FFFF
+#define lpfc_rq_context_rqe_count_1_WORD	word0
+#define lpfc_rq_context_rqe_size_SHIFT	8		/* Version 1 Only */
+#define lpfc_rq_context_rqe_size_MASK	0x0000000F
+#define lpfc_rq_context_rqe_size_WORD	word0
+#define lpfc_rq_context_page_size_SHIFT	0		/* Version 1 Only */
+#define lpfc_rq_context_page_size_MASK	0x000000FF
+#define lpfc_rq_context_page_size_WORD	word0
 	uint32_t reserved1;
 	uint32_t word2;
 #define lpfc_rq_context_cq_id_SHIFT	16
@@ -1022,7 +1070,7 @@ struct rq_context {
 #define lpfc_rq_context_buf_size_SHIFT	0
 #define lpfc_rq_context_buf_size_MASK	0x0000FFFF
 #define lpfc_rq_context_buf_size_WORD	word2
-	uint32_t reserved3;
+	uint32_t buffer_size;				/* Version 1 Only */
 };
 
 struct lpfc_mbx_rq_create {
@@ -1062,16 +1110,16 @@ struct lpfc_mbx_rq_destroy {
 
 struct mq_context {
 	uint32_t word0;
-#define lpfc_mq_context_cq_id_SHIFT	22
+#define lpfc_mq_context_cq_id_SHIFT	22 	/* Version 0 Only */
 #define lpfc_mq_context_cq_id_MASK	0x000003FF
 #define lpfc_mq_context_cq_id_WORD	word0
-#define lpfc_mq_context_count_SHIFT	16
-#define lpfc_mq_context_count_MASK	0x0000000F
-#define lpfc_mq_context_count_WORD	word0
-#define LPFC_MQ_CNT_16		0x5
-#define LPFC_MQ_CNT_32		0x6
-#define LPFC_MQ_CNT_64		0x7
-#define LPFC_MQ_CNT_128		0x8
+#define lpfc_mq_context_ring_size_SHIFT	16
+#define lpfc_mq_context_ring_size_MASK	0x0000000F
+#define lpfc_mq_context_ring_size_WORD	word0
+#define LPFC_MQ_RING_SIZE_16		0x5
+#define LPFC_MQ_RING_SIZE_32		0x6
+#define LPFC_MQ_RING_SIZE_64		0x7
+#define LPFC_MQ_RING_SIZE_128		0x8
 	uint32_t word1;
 #define lpfc_mq_context_valid_SHIFT	31
 #define lpfc_mq_context_valid_MASK	0x00000001
@@ -1105,9 +1153,12 @@ struct lpfc_mbx_mq_create_ext {
 	union {
 		struct {
 			uint32_t word0;
-#define lpfc_mbx_mq_create_ext_num_pages_SHIFT		0
-#define lpfc_mbx_mq_create_ext_num_pages_MASK		0x0000FFFF
-#define lpfc_mbx_mq_create_ext_num_pages_WORD		word0
+#define lpfc_mbx_mq_create_ext_num_pages_SHIFT	0
+#define lpfc_mbx_mq_create_ext_num_pages_MASK	0x0000FFFF
+#define lpfc_mbx_mq_create_ext_num_pages_WORD	word0
+#define lpfc_mbx_mq_create_ext_cq_id_SHIFT	16	/* Version 1 Only */
+#define lpfc_mbx_mq_create_ext_cq_id_MASK	0x0000FFFF
+#define lpfc_mbx_mq_create_ext_cq_id_WORD	word0
 			uint32_t async_evt_bmap;
 #define lpfc_mbx_mq_create_ext_async_evt_link_SHIFT	LPFC_TRAILER_CODE_LINK
 #define lpfc_mbx_mq_create_ext_async_evt_link_MASK	0x00000001
diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index 35665cfb5689..505f88443b5c 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -1,7 +1,7 @@
 /*******************************************************************
  * This file is part of the Emulex Linux Device Driver for         *
  * Fibre Channel Host Bus Adapters.                                *
- * Copyright (C) 2004-2010 Emulex.  All rights reserved.           *
+ * Copyright (C) 2004-2011 Emulex.  All rights reserved.           *
  * EMULEX and SLI are trademarks of Emulex.                        *
  * www.emulex.com                                                  *
  * Portions Copyright (C) 2004-2005 Christoph Hellwig              *
@@ -507,7 +507,10 @@ lpfc_config_port_post(struct lpfc_hba *phba)
 	phba->hba_flag &= ~HBA_ERATT_HANDLED;
 
 	/* Enable appropriate host interrupts */
-	status = readl(phba->HCregaddr);
+	if (lpfc_readl(phba->HCregaddr, &status)) {
+		spin_unlock_irq(&phba->hbalock);
+		return -EIO;
+	}
 	status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
 	if (psli->num_rings > 0)
 		status |= HC_R0INT_ENA;
@@ -1222,7 +1225,10 @@ lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
 	/* Wait for the ER1 bit to clear.*/
 	while (phba->work_hs & HS_FFER1) {
 		msleep(100);
-		phba->work_hs = readl(phba->HSregaddr);
+		if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
+			phba->work_hs = UNPLUG_ERR ;
+			break;
+		}
 		/* If driver is unloading let the worker thread continue */
 		if (phba->pport->load_flag & FC_UNLOADING) {
 			phba->work_hs = 0;
@@ -4460,7 +4466,7 @@ lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
 }
 
 /**
- * lpfc_init_api_table_setup - Set up init api fucntion jump table
+ * lpfc_init_api_table_setup - Set up init api function jump table
  * @phba: The hba struct for which this call is being executed.
  * @dev_grp: The HBA PCI-Device group number.
  *
@@ -4474,6 +4480,7 @@ lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
 {
 	phba->lpfc_hba_init_link = lpfc_hba_init_link;
 	phba->lpfc_hba_down_link = lpfc_hba_down_link;
+	phba->lpfc_selective_reset = lpfc_selective_reset;
 	switch (dev_grp) {
 	case LPFC_PCI_DEV_LP:
 		phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
@@ -4843,7 +4850,7 @@ out_free_mem:
  *
  * Return codes
  * 	0 - successful
- * 	-ENOMEM - No availble memory
+ * 	-ENOMEM - No available memory
  *      -EIO - The mailbox failed to complete successfully.
  **/
 int
@@ -5385,13 +5392,16 @@ lpfc_sli4_post_status_check(struct lpfc_hba *phba)
 	int i, port_error = 0;
 	uint32_t if_type;
 
+	memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
+	memset(&reg_data, 0, sizeof(reg_data));
 	if (!phba->sli4_hba.PSMPHRregaddr)
 		return -ENODEV;
 
 	/* Wait up to 30 seconds for the SLI Port POST done and ready */
 	for (i = 0; i < 3000; i++) {
-		portsmphr_reg.word0 = readl(phba->sli4_hba.PSMPHRregaddr);
-		if (bf_get(lpfc_port_smphr_perr, &portsmphr_reg)) {
+		if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
+			&portsmphr_reg.word0) ||
+			(bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
 			/* Port has a fatal POST error, break out */
 			port_error = -ENODEV;
 			break;
@@ -5472,9 +5482,9 @@ lpfc_sli4_post_status_check(struct lpfc_hba *phba)
 			break;
 		case LPFC_SLI_INTF_IF_TYPE_2:
 			/* Final checks.  The port status should be clean. */
-			reg_data.word0 =
-				readl(phba->sli4_hba.u.if_type2.STATUSregaddr);
-			if (bf_get(lpfc_sliport_status_err, &reg_data)) {
+			if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
+				&reg_data.word0) ||
+				bf_get(lpfc_sliport_status_err, &reg_data)) {
 				phba->work_status[0] =
 					readl(phba->sli4_hba.u.if_type2.
 					      ERR1regaddr);
@@ -5720,7 +5730,7 @@ lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
  *
  * Return codes
  * 	0 - successful
- * 	-ENOMEM - No availble memory
+ * 	-ENOMEM - No available memory
  *      -EIO - The mailbox failed to complete successfully.
  **/
 static int
@@ -5825,7 +5835,7 @@ lpfc_sli4_read_config(struct lpfc_hba *phba)
  *
  * Return codes
  * 	0 - successful
- * 	-ENOMEM - No availble memory
+ * 	-ENOMEM - No available memory
  *      -EIO - The mailbox failed to complete successfully.
  **/
 static int
@@ -5884,7 +5894,7 @@ lpfc_setup_endian_order(struct lpfc_hba *phba)
  *
  * Return codes
  *      0 - successful
- *      -ENOMEM - No availble memory
+ *      -ENOMEM - No available memory
  *      -EIO - The mailbox failed to complete successfully.
  **/
 static int
@@ -6179,7 +6189,7 @@ out_error:
  *
  * Return codes
  *      0 - successful
- *      -ENOMEM - No availble memory
+ *      -ENOMEM - No available memory
  *      -EIO - The mailbox failed to complete successfully.
  **/
 static void
@@ -6243,7 +6253,7 @@ lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
  *
  * Return codes
  *      0 - successful
- *      -ENOMEM - No availble memory
+ *      -ENOMEM - No available memory
  *      -EIO - The mailbox failed to complete successfully.
  **/
 int
@@ -6488,7 +6498,7 @@ out_error:
  *
  * Return codes
  *      0 - successful
- *      -ENOMEM - No availble memory
+ *      -ENOMEM - No available memory
  *      -EIO - The mailbox failed to complete successfully.
  **/
 void
@@ -6533,7 +6543,7 @@ lpfc_sli4_queue_unset(struct lpfc_hba *phba)
  *
  * Return codes
  *      0 - successful
- *      -ENOMEM - No availble memory
+ *      -ENOMEM - No available memory
  **/
 static int
 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
@@ -6694,7 +6704,7 @@ lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
  *
  * Return codes
  *      0 - successful
- *      -ENOMEM - No availble memory
+ *      -ENOMEM - No available memory
  *      -EIO - The mailbox failed to complete successfully.
  **/
 int
@@ -6760,9 +6770,11 @@ lpfc_pci_function_reset(struct lpfc_hba *phba)
 			 * the loop again.
 			 */
 			for (rdy_chk = 0; rdy_chk < 1000; rdy_chk++) {
-				reg_data.word0 =
-					readl(phba->sli4_hba.u.if_type2.
-					      STATUSregaddr);
+				if (lpfc_readl(phba->sli4_hba.u.if_type2.
+					      STATUSregaddr, &reg_data.word0)) {
+					rc = -ENODEV;
+					break;
+				}
 				if (bf_get(lpfc_sliport_status_rdy, &reg_data))
 					break;
 				if (bf_get(lpfc_sliport_status_rn, &reg_data)) {
@@ -6783,8 +6795,11 @@ lpfc_pci_function_reset(struct lpfc_hba *phba)
 			}
 
 			/* Detect any port errors. */
-			reg_data.word0 = readl(phba->sli4_hba.u.if_type2.
-					       STATUSregaddr);
+			if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
+				 &reg_data.word0)) {
+				rc = -ENODEV;
+				break;
+			}
 			if ((bf_get(lpfc_sliport_status_err, &reg_data)) ||
 			    (rdy_chk >= 1000)) {
 				phba->work_status[0] = readl(
diff --git a/drivers/scsi/lpfc/lpfc_mbox.c b/drivers/scsi/lpfc/lpfc_mbox.c
index dba32dfdb59b..fbab9734e9b4 100644
--- a/drivers/scsi/lpfc/lpfc_mbox.c
+++ b/drivers/scsi/lpfc/lpfc_mbox.c
@@ -1834,7 +1834,7 @@ lpfc_sli4_mbox_opcode_get(struct lpfc_hba *phba, struct lpfcMboxq *mbox)
  * @fcf_index: index to fcf table.
  *
  * This routine routine allocates and constructs non-embedded mailbox command
- * for reading a FCF table entry refered by @fcf_index.
+ * for reading a FCF table entry referred by @fcf_index.
  *
  * Return: pointer to the mailbox command constructed if successful, otherwise
  * NULL.
diff --git a/drivers/scsi/lpfc/lpfc_nl.h b/drivers/scsi/lpfc/lpfc_nl.h
index f3cfbe2ce986..f2b1bbcb196f 100644
--- a/drivers/scsi/lpfc/lpfc_nl.h
+++ b/drivers/scsi/lpfc/lpfc_nl.h
@@ -50,7 +50,7 @@
  * and subcategory. The event type must come first.
  * The subcategory further defines the data that follows in the rest
  * of the payload. Each category will have its own unique header plus
- * any addtional data unique to the subcategory.
+ * any additional data unique to the subcategory.
  * The payload sent via the fc transport is one-way driver->application.
  */
 
diff --git a/drivers/scsi/lpfc/lpfc_nportdisc.c b/drivers/scsi/lpfc/lpfc_nportdisc.c
index 52b35159fc35..0d92d4205ea6 100644
--- a/drivers/scsi/lpfc/lpfc_nportdisc.c
+++ b/drivers/scsi/lpfc/lpfc_nportdisc.c
@@ -658,7 +658,7 @@ lpfc_disc_set_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
 	return 0;
 }
 /**
- * lpfc_release_rpi - Release a RPI by issueing unreg_login mailbox cmd.
+ * lpfc_release_rpi - Release a RPI by issuing unreg_login mailbox cmd.
  * @phba : Pointer to lpfc_hba structure.
  * @vport: Pointer to lpfc_vport structure.
  * @rpi  : rpi to be release.
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index bf34178b80bf..fe7cc84e773b 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -1,7 +1,7 @@
 /*******************************************************************
  * This file is part of the Emulex Linux Device Driver for         *
  * Fibre Channel Host Bus Adapters.                                *
- * Copyright (C) 2004-2009 Emulex.  All rights reserved.           *
+ * Copyright (C) 2004-2011 Emulex.  All rights reserved.           *
  * EMULEX and SLI are trademarks of Emulex.                        *
  * www.emulex.com                                                  *
  * Portions Copyright (C) 2004-2005 Christoph Hellwig              *
@@ -577,7 +577,7 @@ lpfc_new_scsi_buf_s3(struct lpfc_vport *vport, int num_to_alloc)
 			iocb->un.fcpi64.bdl.addrHigh = 0;
 			iocb->ulpBdeCount = 0;
 			iocb->ulpLe = 0;
-			/* fill in responce BDE */
+			/* fill in response BDE */
 			iocb->unsli3.fcp_ext.rbde.tus.f.bdeFlags =
 							BUFF_TYPE_BDE_64;
 			iocb->unsli3.fcp_ext.rbde.tus.f.bdeSize =
@@ -1217,10 +1217,10 @@ lpfc_scsi_prep_dma_buf_s3(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd)
 				     (2 * sizeof(struct ulp_bde64)));
 			data_bde->addrHigh = putPaddrHigh(physaddr);
 			data_bde->addrLow = putPaddrLow(physaddr);
-			/* ebde count includes the responce bde and data bpl */
+			/* ebde count includes the response bde and data bpl */
 			iocb_cmd->unsli3.fcp_ext.ebde_count = 2;
 		} else {
-			/* ebde count includes the responce bde and data bdes */
+			/* ebde count includes the response bde and data bdes */
 			iocb_cmd->unsli3.fcp_ext.ebde_count = (num_bde + 1);
 		}
 	} else {
@@ -1514,10 +1514,11 @@ lpfc_bg_setup_bpl_prot(struct lpfc_hba *phba, struct scsi_cmnd *sc,
 	struct scatterlist *sgpe = NULL; /* s/g prot entry */
 	struct lpfc_pde5 *pde5 = NULL;
 	struct lpfc_pde6 *pde6 = NULL;
-	struct ulp_bde64 *prot_bde = NULL;
+	struct lpfc_pde7 *pde7 = NULL;
 	dma_addr_t dataphysaddr, protphysaddr;
 	unsigned short curr_data = 0, curr_prot = 0;
-	unsigned int split_offset, protgroup_len;
+	unsigned int split_offset;
+	unsigned int protgroup_len, protgroup_offset = 0, protgroup_remainder;
 	unsigned int protgrp_blks, protgrp_bytes;
 	unsigned int remainder, subtotal;
 	int status;
@@ -1585,23 +1586,33 @@ lpfc_bg_setup_bpl_prot(struct lpfc_hba *phba, struct scsi_cmnd *sc,
 		bpl++;
 
 		/* setup the first BDE that points to protection buffer */
-		prot_bde = (struct ulp_bde64 *) bpl;
-		protphysaddr = sg_dma_address(sgpe);
-		prot_bde->addrHigh = le32_to_cpu(putPaddrLow(protphysaddr));
-		prot_bde->addrLow = le32_to_cpu(putPaddrHigh(protphysaddr));
-		protgroup_len = sg_dma_len(sgpe);
+		protphysaddr = sg_dma_address(sgpe) + protgroup_offset;
+		protgroup_len = sg_dma_len(sgpe) - protgroup_offset;
 
 		/* must be integer multiple of the DIF block length */
 		BUG_ON(protgroup_len % 8);
 
+		pde7 = (struct lpfc_pde7 *) bpl;
+		memset(pde7, 0, sizeof(struct lpfc_pde7));
+		bf_set(pde7_type, pde7, LPFC_PDE7_DESCRIPTOR);
+
+		pde7->addrHigh = le32_to_cpu(putPaddrLow(protphysaddr));
+		pde7->addrLow = le32_to_cpu(putPaddrHigh(protphysaddr));
+
 		protgrp_blks = protgroup_len / 8;
 		protgrp_bytes = protgrp_blks * blksize;
 
-		prot_bde->tus.f.bdeSize = protgroup_len;
-		prot_bde->tus.f.bdeFlags = LPFC_PDE7_DESCRIPTOR;
-		prot_bde->tus.w = le32_to_cpu(bpl->tus.w);
+		/* check if this pde is crossing the 4K boundary; if so split */
+		if ((pde7->addrLow & 0xfff) + protgroup_len > 0x1000) {
+			protgroup_remainder = 0x1000 - (pde7->addrLow & 0xfff);
+			protgroup_offset += protgroup_remainder;
+			protgrp_blks = protgroup_remainder / 8;
+			protgrp_bytes = protgroup_remainder * blksize;
+		} else {
+			protgroup_offset = 0;
+			curr_prot++;
+		}
 
-		curr_prot++;
 		num_bde++;
 
 		/* setup BDE's for data blocks associated with DIF data */
@@ -1653,6 +1664,13 @@ lpfc_bg_setup_bpl_prot(struct lpfc_hba *phba, struct scsi_cmnd *sc,
 
 		}
 
+		if (protgroup_offset) {
+			/* update the reference tag */
+			reftag += protgrp_blks;
+			bpl++;
+			continue;
+		}
+
 		/* are we done ? */
 		if (curr_prot == protcnt) {
 			alldone = 1;
@@ -1675,6 +1693,7 @@ out:
 
 	return num_bde;
 }
+
 /*
  * Given a SCSI command that supports DIF, determine composition of protection
  * groups involved in setting up buffer lists
@@ -2361,7 +2380,7 @@ lpfc_handle_fcp_err(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd,
 		}
 		/*
 		 * The cmnd->underflow is the minimum number of bytes that must
-		 * be transfered for this command.  Provided a sense condition
+		 * be transferred for this command.  Provided a sense condition
 		 * is not present, make sure the actual amount transferred is at
 		 * least the underflow value or fail.
 		 */
@@ -2854,7 +2873,7 @@ lpfc_scsi_prep_task_mgmt_cmd(struct lpfc_vport *vport,
 }
 
 /**
- * lpfc_scsi_api_table_setup - Set up scsi api fucntion jump table
+ * lpfc_scsi_api_table_setup - Set up scsi api function jump table
  * @phba: The hba struct for which this call is being executed.
  * @dev_grp: The HBA PCI-Device group number.
  *
diff --git a/drivers/scsi/lpfc/lpfc_scsi.h b/drivers/scsi/lpfc/lpfc_scsi.h
index 5932273870a5..ce645b20a6ad 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.h
+++ b/drivers/scsi/lpfc/lpfc_scsi.h
@@ -130,7 +130,7 @@ struct lpfc_scsi_buf {
 	dma_addr_t nonsg_phys;	/* Non scatter-gather physical address. */
 
 	/*
-	 * data and dma_handle are the kernel virutal and bus address of the
+	 * data and dma_handle are the kernel virtual and bus address of the
 	 * dma-able buffer containing the fcp_cmd, fcp_rsp and a scatter
 	 * gather bde list that supports the sg_tablesize value.
 	 */
diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index 2ee0374a9908..dacabbe0a586 100644
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -1,7 +1,7 @@
 /*******************************************************************
  * This file is part of the Emulex Linux Device Driver for         *
  * Fibre Channel Host Bus Adapters.                                *
- * Copyright (C) 2004-2009 Emulex.  All rights reserved.           *
+ * Copyright (C) 2004-2011 Emulex.  All rights reserved.           *
  * EMULEX and SLI are trademarks of Emulex.                        *
  * www.emulex.com                                                  *
  * Portions Copyright (C) 2004-2005 Christoph Hellwig              *
@@ -2817,7 +2817,7 @@ void lpfc_poll_eratt(unsigned long ptr)
  * This function is called from the interrupt context when there is a ring
  * event for the fcp ring. The caller does not hold any lock.
  * The function processes each response iocb in the response ring until it
- * finds an iocb with LE bit set and chains all the iocbs upto the iocb with
+ * finds an iocb with LE bit set and chains all the iocbs up to the iocb with
  * LE bit set. The function will call the completion handler of the command iocb
  * if the response iocb indicates a completion for a command iocb or it is
  * an abort completion. The function will call lpfc_sli_process_unsol_iocb
@@ -3477,7 +3477,8 @@ lpfc_sli_brdready_s3(struct lpfc_hba *phba, uint32_t mask)
 	int retval = 0;
 
 	/* Read the HBA Host Status Register */
-	status = readl(phba->HSregaddr);
+	if (lpfc_readl(phba->HSregaddr, &status))
+		return 1;
 
 	/*
 	 * Check status register every 100ms for 5 retries, then every
@@ -3502,7 +3503,10 @@ lpfc_sli_brdready_s3(struct lpfc_hba *phba, uint32_t mask)
 			lpfc_sli_brdrestart(phba);
 		}
 		/* Read the HBA Host Status Register */
-		status = readl(phba->HSregaddr);
+		if (lpfc_readl(phba->HSregaddr, &status)) {
+			retval = 1;
+			break;
+		}
 	}
 
 	/* Check to see if any errors occurred during init */
@@ -3584,7 +3588,7 @@ void lpfc_reset_barrier(struct lpfc_hba *phba)
 	uint32_t __iomem *resp_buf;
 	uint32_t __iomem *mbox_buf;
 	volatile uint32_t mbox;
-	uint32_t hc_copy;
+	uint32_t hc_copy, ha_copy, resp_data;
 	int  i;
 	uint8_t hdrtype;
 
@@ -3601,12 +3605,15 @@ void lpfc_reset_barrier(struct lpfc_hba *phba)
 	resp_buf = phba->MBslimaddr;
 
 	/* Disable the error attention */
-	hc_copy = readl(phba->HCregaddr);
+	if (lpfc_readl(phba->HCregaddr, &hc_copy))
+		return;
 	writel((hc_copy & ~HC_ERINT_ENA), phba->HCregaddr);
 	readl(phba->HCregaddr); /* flush */
 	phba->link_flag |= LS_IGNORE_ERATT;
 
-	if (readl(phba->HAregaddr) & HA_ERATT) {
+	if (lpfc_readl(phba->HAregaddr, &ha_copy))
+		return;
+	if (ha_copy & HA_ERATT) {
 		/* Clear Chip error bit */
 		writel(HA_ERATT, phba->HAregaddr);
 		phba->pport->stopped = 1;
@@ -3620,11 +3627,18 @@ void lpfc_reset_barrier(struct lpfc_hba *phba)
 	mbox_buf = phba->MBslimaddr;
 	writel(mbox, mbox_buf);
 
-	for (i = 0;
-	     readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN) && i < 50; i++)
-		mdelay(1);
-
-	if (readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN)) {
+	for (i = 0; i < 50; i++) {
+		if (lpfc_readl((resp_buf + 1), &resp_data))
+			return;
+		if (resp_data != ~(BARRIER_TEST_PATTERN))
+			mdelay(1);
+		else
+			break;
+	}
+	resp_data = 0;
+	if (lpfc_readl((resp_buf + 1), &resp_data))
+		return;
+	if (resp_data  != ~(BARRIER_TEST_PATTERN)) {
 		if (phba->sli.sli_flag & LPFC_SLI_ACTIVE ||
 		    phba->pport->stopped)
 			goto restore_hc;
@@ -3633,13 +3647,26 @@ void lpfc_reset_barrier(struct lpfc_hba *phba)
 	}
 
 	((MAILBOX_t *)&mbox)->mbxOwner = OWN_HOST;
-	for (i = 0; readl(resp_buf) != mbox &&  i < 500; i++)
-		mdelay(1);
+	resp_data = 0;
+	for (i = 0; i < 500; i++) {
+		if (lpfc_readl(resp_buf, &resp_data))
+			return;
+		if (resp_data != mbox)
+			mdelay(1);
+		else
+			break;
+	}
 
 clear_errat:
 
-	while (!(readl(phba->HAregaddr) & HA_ERATT) && ++i < 500)
-		mdelay(1);
+	while (++i < 500) {
+		if (lpfc_readl(phba->HAregaddr, &ha_copy))
+			return;
+		if (!(ha_copy & HA_ERATT))
+			mdelay(1);
+		else
+			break;
+	}
 
 	if (readl(phba->HAregaddr) & HA_ERATT) {
 		writel(HA_ERATT, phba->HAregaddr);
@@ -3686,7 +3713,11 @@ lpfc_sli_brdkill(struct lpfc_hba *phba)
 
 	/* Disable the error attention */
 	spin_lock_irq(&phba->hbalock);
-	status = readl(phba->HCregaddr);
+	if (lpfc_readl(phba->HCregaddr, &status)) {
+		spin_unlock_irq(&phba->hbalock);
+		mempool_free(pmb, phba->mbox_mem_pool);
+		return 1;
+	}
 	status &= ~HC_ERINT_ENA;
 	writel(status, phba->HCregaddr);
 	readl(phba->HCregaddr); /* flush */
@@ -3720,11 +3751,12 @@ lpfc_sli_brdkill(struct lpfc_hba *phba)
 	 * 3 seconds we still set HBA_ERROR state because the status of the
 	 * board is now undefined.
 	 */
-	ha_copy = readl(phba->HAregaddr);
-
+	if (lpfc_readl(phba->HAregaddr, &ha_copy))
+		return 1;
 	while ((i++ < 30) && !(ha_copy & HA_ERATT)) {
 		mdelay(100);
-		ha_copy = readl(phba->HAregaddr);
+		if (lpfc_readl(phba->HAregaddr, &ha_copy))
+			return 1;
 	}
 
 	del_timer_sync(&psli->mbox_tmo);
@@ -4018,7 +4050,8 @@ lpfc_sli_chipset_init(struct lpfc_hba *phba)
 	uint32_t status, i = 0;
 
 	/* Read the HBA Host Status Register */
-	status = readl(phba->HSregaddr);
+	if (lpfc_readl(phba->HSregaddr, &status))
+		return -EIO;
 
 	/* Check status register to see what current state is */
 	i = 0;
@@ -4073,7 +4106,8 @@ lpfc_sli_chipset_init(struct lpfc_hba *phba)
 			lpfc_sli_brdrestart(phba);
 		}
 		/* Read the HBA Host Status Register */
-		status = readl(phba->HSregaddr);
+		if (lpfc_readl(phba->HSregaddr, &status))
+			return -EIO;
 	}
 
 	/* Check to see if any errors occurred during init */
@@ -5083,7 +5117,7 @@ lpfc_mbox_timeout_handler(struct lpfc_hba *phba)
 
 	/* Setting state unknown so lpfc_sli_abort_iocb_ring
 	 * would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing
-	 * it to fail all oustanding SCSI IO.
+	 * it to fail all outstanding SCSI IO.
 	 */
 	spin_lock_irq(&phba->pport->work_port_lock);
 	phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
@@ -5136,7 +5170,7 @@ lpfc_sli_issue_mbox_s3(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox,
 	MAILBOX_t *mb;
 	struct lpfc_sli *psli = &phba->sli;
 	uint32_t status, evtctr;
-	uint32_t ha_copy;
+	uint32_t ha_copy, hc_copy;
 	int i;
 	unsigned long timeout;
 	unsigned long drvr_flag = 0;
@@ -5202,15 +5236,17 @@ lpfc_sli_issue_mbox_s3(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox,
 		goto out_not_finished;
 	}
 
-	if (mb->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT &&
-	    !(readl(phba->HCregaddr) & HC_MBINT_ENA)) {
-		spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
-		lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
+	if (mb->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT) {
+		if (lpfc_readl(phba->HCregaddr, &hc_copy) ||
+			!(hc_copy & HC_MBINT_ENA)) {
+			spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
+			lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
 				"(%d):2528 Mailbox command x%x cannot "
 				"issue Data: x%x x%x\n",
 				pmbox->vport ? pmbox->vport->vpi : 0,
 				pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
-		goto out_not_finished;
+			goto out_not_finished;
+		}
 	}
 
 	if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
@@ -5408,11 +5444,19 @@ lpfc_sli_issue_mbox_s3(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox,
 			word0 = le32_to_cpu(word0);
 		} else {
 			/* First read mbox status word */
-			word0 = readl(phba->MBslimaddr);
+			if (lpfc_readl(phba->MBslimaddr, &word0)) {
+				spin_unlock_irqrestore(&phba->hbalock,
+						       drvr_flag);
+				goto out_not_finished;
+			}
 		}
 
 		/* Read the HBA Host Attention Register */
-		ha_copy = readl(phba->HAregaddr);
+		if (lpfc_readl(phba->HAregaddr, &ha_copy)) {
+			spin_unlock_irqrestore(&phba->hbalock,
+						       drvr_flag);
+			goto out_not_finished;
+		}
 		timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
 							     mb->mbxCommand) *
 					   1000) + jiffies;
@@ -5463,7 +5507,11 @@ lpfc_sli_issue_mbox_s3(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox,
 				word0 = readl(phba->MBslimaddr);
 			}
 			/* Read the HBA Host Attention Register */
-			ha_copy = readl(phba->HAregaddr);
+			if (lpfc_readl(phba->HAregaddr, &ha_copy)) {
+				spin_unlock_irqrestore(&phba->hbalock,
+						       drvr_flag);
+				goto out_not_finished;
+			}
 		}
 
 		if (psli->sli_flag & LPFC_SLI_ACTIVE) {
@@ -5983,7 +6031,7 @@ lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag)
 }
 
 /**
- * lpfc_mbox_api_table_setup - Set up mbox api fucntion jump table
+ * lpfc_mbox_api_table_setup - Set up mbox api function jump table
  * @phba: The hba struct for which this call is being executed.
  * @dev_grp: The HBA PCI-Device group number.
  *
@@ -6263,7 +6311,6 @@ lpfc_sli4_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq,
 				bf_set(lpfc_sli4_sge_last, sgl, 1);
 			else
 				bf_set(lpfc_sli4_sge_last, sgl, 0);
-			sgl->word2 = cpu_to_le32(sgl->word2);
 			/* swap the size field back to the cpu so we
 			 * can assign it to the sgl.
 			 */
@@ -6283,6 +6330,7 @@ lpfc_sli4_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq,
 				bf_set(lpfc_sli4_sge_offset, sgl, offset);
 				offset += bde.tus.f.bdeSize;
 			}
+			sgl->word2 = cpu_to_le32(sgl->word2);
 			bpl++;
 			sgl++;
 		}
@@ -6528,9 +6576,9 @@ lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
 		numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
 			sizeof(struct ulp_bde64);
 		for (i = 0; i < numBdes; i++) {
-			if (bpl[i].tus.f.bdeFlags != BUFF_TYPE_BDE_64)
-				break;
 			bde.tus.w = le32_to_cpu(bpl[i].tus.w);
+			if (bde.tus.f.bdeFlags != BUFF_TYPE_BDE_64)
+				break;
 			xmit_len += bde.tus.f.bdeSize;
 		}
 		/* word3 iocb=IO_TAG wqe=request_payload_len */
@@ -6620,15 +6668,15 @@ lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
 		xritag = 0;
 	break;
 	case CMD_XMIT_BLS_RSP64_CX:
-		/* As BLS ABTS-ACC WQE is very different from other WQEs,
+		/* As BLS ABTS RSP WQE is very different from other WQEs,
 		 * we re-construct this WQE here based on information in
 		 * iocbq from scratch.
 		 */
 		memset(wqe, 0, sizeof(union lpfc_wqe));
 		/* OX_ID is invariable to who sent ABTS to CT exchange */
 		bf_set(xmit_bls_rsp64_oxid, &wqe->xmit_bls_rsp,
-		       bf_get(lpfc_abts_oxid, &iocbq->iocb.un.bls_acc));
-		if (bf_get(lpfc_abts_orig, &iocbq->iocb.un.bls_acc) ==
+		       bf_get(lpfc_abts_oxid, &iocbq->iocb.un.bls_rsp));
+		if (bf_get(lpfc_abts_orig, &iocbq->iocb.un.bls_rsp) ==
 		    LPFC_ABTS_UNSOL_INT) {
 			/* ABTS sent by initiator to CT exchange, the
 			 * RX_ID field will be filled with the newly
@@ -6642,7 +6690,7 @@ lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
 			 * RX_ID from ABTS.
 			 */
 			bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
-			       bf_get(lpfc_abts_rxid, &iocbq->iocb.un.bls_acc));
+			       bf_get(lpfc_abts_rxid, &iocbq->iocb.un.bls_rsp));
 		}
 		bf_set(xmit_bls_rsp64_seqcnthi, &wqe->xmit_bls_rsp, 0xffff);
 		bf_set(wqe_xmit_bls_pt, &wqe->xmit_bls_rsp.wqe_dest, 0x1);
@@ -6653,6 +6701,15 @@ lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
 		       LPFC_WQE_LENLOC_NONE);
 		/* Overwrite the pre-set comnd type with OTHER_COMMAND */
 		command_type = OTHER_COMMAND;
+		if (iocbq->iocb.un.xseq64.w5.hcsw.Rctl == FC_RCTL_BA_RJT) {
+			bf_set(xmit_bls_rsp64_rjt_vspec, &wqe->xmit_bls_rsp,
+			       bf_get(lpfc_vndr_code, &iocbq->iocb.un.bls_rsp));
+			bf_set(xmit_bls_rsp64_rjt_expc, &wqe->xmit_bls_rsp,
+			       bf_get(lpfc_rsn_expln, &iocbq->iocb.un.bls_rsp));
+			bf_set(xmit_bls_rsp64_rjt_rsnc, &wqe->xmit_bls_rsp,
+			       bf_get(lpfc_rsn_code, &iocbq->iocb.un.bls_rsp));
+		}
+
 	break;
 	case CMD_XRI_ABORTED_CX:
 	case CMD_CREATE_XRI_CR: /* Do we expect to use this? */
@@ -6701,7 +6758,8 @@ __lpfc_sli_issue_iocb_s4(struct lpfc_hba *phba, uint32_t ring_number,
 
 	if (piocb->sli4_xritag == NO_XRI) {
 		if (piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN ||
-		    piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN)
+		    piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN ||
+		    piocb->iocb.ulpCommand == CMD_XMIT_BLS_RSP64_CX)
 			sglq = NULL;
 		else {
 			if (pring->txq_cnt) {
@@ -6789,7 +6847,7 @@ __lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
 }
 
 /**
- * lpfc_sli_api_table_setup - Set up sli api fucntion jump table
+ * lpfc_sli_api_table_setup - Set up sli api function jump table
  * @phba: The hba struct for which this call is being executed.
  * @dev_grp: The HBA PCI-Device group number.
  *
@@ -7463,7 +7521,7 @@ lpfc_sli_ring_taggedbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
 	struct lpfc_dmabuf *mp, *next_mp;
 	struct list_head *slp = &pring->postbufq;
 
-	/* Search postbufq, from the begining, looking for a match on tag */
+	/* Search postbufq, from the beginning, looking for a match on tag */
 	spin_lock_irq(&phba->hbalock);
 	list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
 		if (mp->buffer_tag == tag) {
@@ -7507,7 +7565,7 @@ lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
 	struct lpfc_dmabuf *mp, *next_mp;
 	struct list_head *slp = &pring->postbufq;
 
-	/* Search postbufq, from the begining, looking for a match on phys */
+	/* Search postbufq, from the beginning, looking for a match on phys */
 	spin_lock_irq(&phba->hbalock);
 	list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
 		if (mp->phys == phys) {
@@ -8194,7 +8252,8 @@ lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba,
 	piocb->iocb_flag &= ~LPFC_IO_WAKE;
 
 	if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
-		creg_val = readl(phba->HCregaddr);
+		if (lpfc_readl(phba->HCregaddr, &creg_val))
+			return IOCB_ERROR;
 		creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
 		writel(creg_val, phba->HCregaddr);
 		readl(phba->HCregaddr); /* flush */
@@ -8236,7 +8295,8 @@ lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba,
 	}
 
 	if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
-		creg_val = readl(phba->HCregaddr);
+		if (lpfc_readl(phba->HCregaddr, &creg_val))
+			return IOCB_ERROR;
 		creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
 		writel(creg_val, phba->HCregaddr);
 		readl(phba->HCregaddr); /* flush */
@@ -8378,7 +8438,7 @@ lpfc_sli_mbox_sys_shutdown(struct lpfc_hba *phba)
  * for possible error attention events. The caller must hold the hostlock
  * with spin_lock_irq().
  *
- * This fucntion returns 1 when there is Error Attention in the Host Attention
+ * This function returns 1 when there is Error Attention in the Host Attention
  * Register and returns 0 otherwise.
  **/
 static int
@@ -8387,10 +8447,13 @@ lpfc_sli_eratt_read(struct lpfc_hba *phba)
 	uint32_t ha_copy;
 
 	/* Read chip Host Attention (HA) register */
-	ha_copy = readl(phba->HAregaddr);
+	if (lpfc_readl(phba->HAregaddr, &ha_copy))
+		goto unplug_err;
+
 	if (ha_copy & HA_ERATT) {
 		/* Read host status register to retrieve error event */
-		lpfc_sli_read_hs(phba);
+		if (lpfc_sli_read_hs(phba))
+			goto unplug_err;
 
 		/* Check if there is a deferred error condition is active */
 		if ((HS_FFER1 & phba->work_hs) &&
@@ -8409,6 +8472,15 @@ lpfc_sli_eratt_read(struct lpfc_hba *phba)
 		return 1;
 	}
 	return 0;
+
+unplug_err:
+	/* Set the driver HS work bitmap */
+	phba->work_hs |= UNPLUG_ERR;
+	/* Set the driver HA work bitmap */
+	phba->work_ha |= HA_ERATT;
+	/* Indicate polling handles this ERATT */
+	phba->hba_flag |= HBA_ERATT_HANDLED;
+	return 1;
 }
 
 /**
@@ -8419,7 +8491,7 @@ lpfc_sli_eratt_read(struct lpfc_hba *phba)
  * for possible error attention events. The caller must hold the hostlock
  * with spin_lock_irq().
  *
- * This fucntion returns 1 when there is Error Attention in the Host Attention
+ * This function returns 1 when there is Error Attention in the Host Attention
  * Register and returns 0 otherwise.
  **/
 static int
@@ -8436,8 +8508,15 @@ lpfc_sli4_eratt_read(struct lpfc_hba *phba)
 	if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
 	switch (if_type) {
 	case LPFC_SLI_INTF_IF_TYPE_0:
-		uerr_sta_lo = readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
-		uerr_sta_hi = readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
+		if (lpfc_readl(phba->sli4_hba.u.if_type0.UERRLOregaddr,
+			&uerr_sta_lo) ||
+			lpfc_readl(phba->sli4_hba.u.if_type0.UERRHIregaddr,
+			&uerr_sta_hi)) {
+			phba->work_hs |= UNPLUG_ERR;
+			phba->work_ha |= HA_ERATT;
+			phba->hba_flag |= HBA_ERATT_HANDLED;
+			return 1;
+		}
 		if ((~phba->sli4_hba.ue_mask_lo & uerr_sta_lo) ||
 		    (~phba->sli4_hba.ue_mask_hi & uerr_sta_hi)) {
 			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
@@ -8456,9 +8535,15 @@ lpfc_sli4_eratt_read(struct lpfc_hba *phba)
 		}
 		break;
 	case LPFC_SLI_INTF_IF_TYPE_2:
-		portstat_reg.word0 =
-			readl(phba->sli4_hba.u.if_type2.STATUSregaddr);
-		portsmphr = readl(phba->sli4_hba.PSMPHRregaddr);
+		if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
+			&portstat_reg.word0) ||
+			lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
+			&portsmphr)){
+			phba->work_hs |= UNPLUG_ERR;
+			phba->work_ha |= HA_ERATT;
+			phba->hba_flag |= HBA_ERATT_HANDLED;
+			return 1;
+		}
 		if (bf_get(lpfc_sliport_status_err, &portstat_reg)) {
 			phba->work_status[0] =
 				readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
@@ -8496,7 +8581,7 @@ lpfc_sli4_eratt_read(struct lpfc_hba *phba)
  * This function is called from timer soft interrupt context to check HBA's
  * error attention register bit for error attention events.
  *
- * This fucntion returns 1 when there is Error Attention in the Host Attention
+ * This function returns 1 when there is Error Attention in the Host Attention
  * Register and returns 0 otherwise.
  **/
 int
@@ -8639,7 +8724,8 @@ lpfc_sli_sp_intr_handler(int irq, void *dev_id)
 			return IRQ_NONE;
 		/* Need to read HA REG for slow-path events */
 		spin_lock_irqsave(&phba->hbalock, iflag);
-		ha_copy = readl(phba->HAregaddr);
+		if (lpfc_readl(phba->HAregaddr, &ha_copy))
+			goto unplug_error;
 		/* If somebody is waiting to handle an eratt don't process it
 		 * here. The brdkill function will do this.
 		 */
@@ -8665,7 +8751,9 @@ lpfc_sli_sp_intr_handler(int irq, void *dev_id)
 		}
 
 		/* Clear up only attention source related to slow-path */
-		hc_copy = readl(phba->HCregaddr);
+		if (lpfc_readl(phba->HCregaddr, &hc_copy))
+			goto unplug_error;
+
 		writel(hc_copy & ~(HC_MBINT_ENA | HC_R2INT_ENA |
 			HC_LAINT_ENA | HC_ERINT_ENA),
 			phba->HCregaddr);
@@ -8688,7 +8776,8 @@ lpfc_sli_sp_intr_handler(int irq, void *dev_id)
 				 */
 				spin_lock_irqsave(&phba->hbalock, iflag);
 				phba->sli.sli_flag &= ~LPFC_PROCESS_LA;
-				control = readl(phba->HCregaddr);
+				if (lpfc_readl(phba->HCregaddr, &control))
+					goto unplug_error;
 				control &= ~HC_LAINT_ENA;
 				writel(control, phba->HCregaddr);
 				readl(phba->HCregaddr); /* flush */
@@ -8708,7 +8797,8 @@ lpfc_sli_sp_intr_handler(int irq, void *dev_id)
 			status >>= (4*LPFC_ELS_RING);
 			if (status & HA_RXMASK) {
 				spin_lock_irqsave(&phba->hbalock, iflag);
-				control = readl(phba->HCregaddr);
+				if (lpfc_readl(phba->HCregaddr, &control))
+					goto unplug_error;
 
 				lpfc_debugfs_slow_ring_trc(phba,
 				"ISR slow ring:   ctl:x%x stat:x%x isrcnt:x%x",
@@ -8741,7 +8831,8 @@ lpfc_sli_sp_intr_handler(int irq, void *dev_id)
 		}
 		spin_lock_irqsave(&phba->hbalock, iflag);
 		if (work_ha_copy & HA_ERATT) {
-			lpfc_sli_read_hs(phba);
+			if (lpfc_sli_read_hs(phba))
+				goto unplug_error;
 			/*
 			 * Check if there is a deferred error condition
 			 * is active
@@ -8872,6 +8963,9 @@ send_current_mbox:
 		lpfc_worker_wake_up(phba);
 	}
 	return IRQ_HANDLED;
+unplug_error:
+	spin_unlock_irqrestore(&phba->hbalock, iflag);
+	return IRQ_HANDLED;
 
 } /* lpfc_sli_sp_intr_handler */
 
@@ -8919,7 +9013,8 @@ lpfc_sli_fp_intr_handler(int irq, void *dev_id)
 		if (lpfc_intr_state_check(phba))
 			return IRQ_NONE;
 		/* Need to read HA REG for FCP ring and other ring events */
-		ha_copy = readl(phba->HAregaddr);
+		if (lpfc_readl(phba->HAregaddr, &ha_copy))
+			return IRQ_HANDLED;
 		/* Clear up only attention source related to fast-path */
 		spin_lock_irqsave(&phba->hbalock, iflag);
 		/*
@@ -9004,7 +9099,11 @@ lpfc_sli_intr_handler(int irq, void *dev_id)
 		return IRQ_NONE;
 
 	spin_lock(&phba->hbalock);
-	phba->ha_copy = readl(phba->HAregaddr);
+	if (lpfc_readl(phba->HAregaddr, &phba->ha_copy)) {
+		spin_unlock(&phba->hbalock);
+		return IRQ_HANDLED;
+	}
+
 	if (unlikely(!phba->ha_copy)) {
 		spin_unlock(&phba->hbalock);
 		return IRQ_NONE;
@@ -9026,7 +9125,10 @@ lpfc_sli_intr_handler(int irq, void *dev_id)
 	}
 
 	/* Clear attention sources except link and error attentions */
-	hc_copy = readl(phba->HCregaddr);
+	if (lpfc_readl(phba->HCregaddr, &hc_copy)) {
+		spin_unlock(&phba->hbalock);
+		return IRQ_HANDLED;
+	}
 	writel(hc_copy & ~(HC_MBINT_ENA | HC_R0INT_ENA | HC_R1INT_ENA
 		| HC_R2INT_ENA | HC_LAINT_ENA | HC_ERINT_ENA),
 		phba->HCregaddr);
@@ -9582,7 +9684,7 @@ out:
  * @cq: Pointer to the completion queue.
  * @wcqe: Pointer to a completion queue entry.
  *
- * This routine process a slow-path work-queue or recieve queue completion queue
+ * This routine process a slow-path work-queue or receive queue completion queue
  * entry.
  *
  * Return: true if work posted to worker thread, otherwise false.
@@ -10403,7 +10505,6 @@ lpfc_cq_create(struct lpfc_hba *phba, struct lpfc_queue *cq,
 	if (!phba->sli4_hba.pc_sli4_params.supported)
 		hw_page_size = SLI4_PAGE_SIZE;
 
-
 	mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 	if (!mbox)
 		return -ENOMEM;
@@ -10413,11 +10514,22 @@ lpfc_cq_create(struct lpfc_hba *phba, struct lpfc_queue *cq,
 			 LPFC_MBOX_OPCODE_CQ_CREATE,
 			 length, LPFC_SLI4_MBX_EMBED);
 	cq_create = &mbox->u.mqe.un.cq_create;
+	shdr = (union lpfc_sli4_cfg_shdr *) &cq_create->header.cfg_shdr;
 	bf_set(lpfc_mbx_cq_create_num_pages, &cq_create->u.request,
 		    cq->page_count);
 	bf_set(lpfc_cq_context_event, &cq_create->u.request.context, 1);
 	bf_set(lpfc_cq_context_valid, &cq_create->u.request.context, 1);
-	bf_set(lpfc_cq_eq_id, &cq_create->u.request.context, eq->queue_id);
+	bf_set(lpfc_mbox_hdr_version, &shdr->request,
+	       phba->sli4_hba.pc_sli4_params.cqv);
+	if (phba->sli4_hba.pc_sli4_params.cqv == LPFC_Q_CREATE_VERSION_2) {
+		bf_set(lpfc_mbx_cq_create_page_size, &cq_create->u.request,
+		       (PAGE_SIZE/SLI4_PAGE_SIZE));
+		bf_set(lpfc_cq_eq_id_2, &cq_create->u.request.context,
+		       eq->queue_id);
+	} else {
+		bf_set(lpfc_cq_eq_id, &cq_create->u.request.context,
+		       eq->queue_id);
+	}
 	switch (cq->entry_count) {
 	default:
 		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
@@ -10449,7 +10561,6 @@ lpfc_cq_create(struct lpfc_hba *phba, struct lpfc_queue *cq,
 	rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
 
 	/* The IOCTL status is embedded in the mailbox subheader. */
-	shdr = (union lpfc_sli4_cfg_shdr *) &cq_create->header.cfg_shdr;
 	shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
 	shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
 	if (shdr_status || shdr_add_status || rc) {
@@ -10515,20 +10626,20 @@ lpfc_mq_create_fb_init(struct lpfc_hba *phba, struct lpfc_queue *mq,
 	bf_set(lpfc_mq_context_valid, &mq_create->u.request.context, 1);
 	switch (mq->entry_count) {
 	case 16:
-		bf_set(lpfc_mq_context_count, &mq_create->u.request.context,
-		       LPFC_MQ_CNT_16);
+		bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
+		       LPFC_MQ_RING_SIZE_16);
 		break;
 	case 32:
-		bf_set(lpfc_mq_context_count, &mq_create->u.request.context,
-		       LPFC_MQ_CNT_32);
+		bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
+		       LPFC_MQ_RING_SIZE_32);
 		break;
 	case 64:
-		bf_set(lpfc_mq_context_count, &mq_create->u.request.context,
-		       LPFC_MQ_CNT_64);
+		bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
+		       LPFC_MQ_RING_SIZE_64);
 		break;
 	case 128:
-		bf_set(lpfc_mq_context_count, &mq_create->u.request.context,
-		       LPFC_MQ_CNT_128);
+		bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
+		       LPFC_MQ_RING_SIZE_128);
 		break;
 	}
 	list_for_each_entry(dmabuf, &mq->page_list, list) {
@@ -10586,6 +10697,7 @@ lpfc_mq_create(struct lpfc_hba *phba, struct lpfc_queue *mq,
 			 length, LPFC_SLI4_MBX_EMBED);
 
 	mq_create_ext = &mbox->u.mqe.un.mq_create_ext;
+	shdr = (union lpfc_sli4_cfg_shdr *) &mq_create_ext->header.cfg_shdr;
 	bf_set(lpfc_mbx_mq_create_ext_num_pages,
 	       &mq_create_ext->u.request, mq->page_count);
 	bf_set(lpfc_mbx_mq_create_ext_async_evt_link,
@@ -10598,9 +10710,15 @@ lpfc_mq_create(struct lpfc_hba *phba, struct lpfc_queue *mq,
 	       &mq_create_ext->u.request, 1);
 	bf_set(lpfc_mbx_mq_create_ext_async_evt_sli,
 	       &mq_create_ext->u.request, 1);
-	bf_set(lpfc_mq_context_cq_id,
-	       &mq_create_ext->u.request.context, cq->queue_id);
 	bf_set(lpfc_mq_context_valid, &mq_create_ext->u.request.context, 1);
+	bf_set(lpfc_mbox_hdr_version, &shdr->request,
+	       phba->sli4_hba.pc_sli4_params.mqv);
+	if (phba->sli4_hba.pc_sli4_params.mqv == LPFC_Q_CREATE_VERSION_1)
+		bf_set(lpfc_mbx_mq_create_ext_cq_id, &mq_create_ext->u.request,
+		       cq->queue_id);
+	else
+		bf_set(lpfc_mq_context_cq_id, &mq_create_ext->u.request.context,
+		       cq->queue_id);
 	switch (mq->entry_count) {
 	default:
 		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
@@ -10610,20 +10728,24 @@ lpfc_mq_create(struct lpfc_hba *phba, struct lpfc_queue *mq,
 			return -EINVAL;
 		/* otherwise default to smallest count (drop through) */
 	case 16:
-		bf_set(lpfc_mq_context_count, &mq_create_ext->u.request.context,
-		       LPFC_MQ_CNT_16);
+		bf_set(lpfc_mq_context_ring_size,
+		       &mq_create_ext->u.request.context,
+		       LPFC_MQ_RING_SIZE_16);
 		break;
 	case 32:
-		bf_set(lpfc_mq_context_count, &mq_create_ext->u.request.context,
-		       LPFC_MQ_CNT_32);
+		bf_set(lpfc_mq_context_ring_size,
+		       &mq_create_ext->u.request.context,
+		       LPFC_MQ_RING_SIZE_32);
 		break;
 	case 64:
-		bf_set(lpfc_mq_context_count, &mq_create_ext->u.request.context,
-		       LPFC_MQ_CNT_64);
+		bf_set(lpfc_mq_context_ring_size,
+		       &mq_create_ext->u.request.context,
+		       LPFC_MQ_RING_SIZE_64);
 		break;
 	case 128:
-		bf_set(lpfc_mq_context_count, &mq_create_ext->u.request.context,
-		       LPFC_MQ_CNT_128);
+		bf_set(lpfc_mq_context_ring_size,
+		       &mq_create_ext->u.request.context,
+		       LPFC_MQ_RING_SIZE_128);
 		break;
 	}
 	list_for_each_entry(dmabuf, &mq->page_list, list) {
@@ -10634,7 +10756,6 @@ lpfc_mq_create(struct lpfc_hba *phba, struct lpfc_queue *mq,
 					putPaddrHigh(dmabuf->phys);
 	}
 	rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
-	shdr = (union lpfc_sli4_cfg_shdr *) &mq_create_ext->header.cfg_shdr;
 	mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
 			      &mq_create_ext->u.response);
 	if (rc != MBX_SUCCESS) {
@@ -10711,6 +10832,7 @@ lpfc_wq_create(struct lpfc_hba *phba, struct lpfc_queue *wq,
 	uint32_t shdr_status, shdr_add_status;
 	union lpfc_sli4_cfg_shdr *shdr;
 	uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
+	struct dma_address *page;
 
 	if (!phba->sli4_hba.pc_sli4_params.supported)
 		hw_page_size = SLI4_PAGE_SIZE;
@@ -10724,20 +10846,42 @@ lpfc_wq_create(struct lpfc_hba *phba, struct lpfc_queue *wq,
 			 LPFC_MBOX_OPCODE_FCOE_WQ_CREATE,
 			 length, LPFC_SLI4_MBX_EMBED);
 	wq_create = &mbox->u.mqe.un.wq_create;
+	shdr = (union lpfc_sli4_cfg_shdr *) &wq_create->header.cfg_shdr;
 	bf_set(lpfc_mbx_wq_create_num_pages, &wq_create->u.request,
 		    wq->page_count);
 	bf_set(lpfc_mbx_wq_create_cq_id, &wq_create->u.request,
 		    cq->queue_id);
+	bf_set(lpfc_mbox_hdr_version, &shdr->request,
+	       phba->sli4_hba.pc_sli4_params.wqv);
+	if (phba->sli4_hba.pc_sli4_params.wqv == LPFC_Q_CREATE_VERSION_1) {
+		bf_set(lpfc_mbx_wq_create_wqe_count, &wq_create->u.request_1,
+		       wq->entry_count);
+		switch (wq->entry_size) {
+		default:
+		case 64:
+			bf_set(lpfc_mbx_wq_create_wqe_size,
+			       &wq_create->u.request_1,
+			       LPFC_WQ_WQE_SIZE_64);
+			break;
+		case 128:
+			bf_set(lpfc_mbx_wq_create_wqe_size,
+			       &wq_create->u.request_1,
+			       LPFC_WQ_WQE_SIZE_128);
+			break;
+		}
+		bf_set(lpfc_mbx_wq_create_page_size, &wq_create->u.request_1,
+		       (PAGE_SIZE/SLI4_PAGE_SIZE));
+		page = wq_create->u.request_1.page;
+	} else {
+		page = wq_create->u.request.page;
+	}
 	list_for_each_entry(dmabuf, &wq->page_list, list) {
 		memset(dmabuf->virt, 0, hw_page_size);
-		wq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
-					putPaddrLow(dmabuf->phys);
-		wq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
-					putPaddrHigh(dmabuf->phys);
+		page[dmabuf->buffer_tag].addr_lo = putPaddrLow(dmabuf->phys);
+		page[dmabuf->buffer_tag].addr_hi = putPaddrHigh(dmabuf->phys);
 	}
 	rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
 	/* The IOCTL status is embedded in the mailbox subheader. */
-	shdr = (union lpfc_sli4_cfg_shdr *) &wq_create->header.cfg_shdr;
 	shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
 	shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
 	if (shdr_status || shdr_add_status || rc) {
@@ -10815,37 +10959,51 @@ lpfc_rq_create(struct lpfc_hba *phba, struct lpfc_queue *hrq,
 			 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
 			 length, LPFC_SLI4_MBX_EMBED);
 	rq_create = &mbox->u.mqe.un.rq_create;
-	switch (hrq->entry_count) {
-	default:
-		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
-				"2535 Unsupported RQ count. (%d)\n",
-				hrq->entry_count);
-		if (hrq->entry_count < 512)
-			return -EINVAL;
-		/* otherwise default to smallest count (drop through) */
-	case 512:
-		bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
-		       LPFC_RQ_RING_SIZE_512);
-		break;
-	case 1024:
-		bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
-		       LPFC_RQ_RING_SIZE_1024);
-		break;
-	case 2048:
-		bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
-		       LPFC_RQ_RING_SIZE_2048);
-		break;
-	case 4096:
-		bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
-		       LPFC_RQ_RING_SIZE_4096);
-		break;
+	shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
+	bf_set(lpfc_mbox_hdr_version, &shdr->request,
+	       phba->sli4_hba.pc_sli4_params.rqv);
+	if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) {
+		bf_set(lpfc_rq_context_rqe_count_1,
+		       &rq_create->u.request.context,
+		       hrq->entry_count);
+		rq_create->u.request.context.buffer_size = LPFC_HDR_BUF_SIZE;
+	} else {
+		switch (hrq->entry_count) {
+		default:
+			lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+					"2535 Unsupported RQ count. (%d)\n",
+					hrq->entry_count);
+			if (hrq->entry_count < 512)
+				return -EINVAL;
+			/* otherwise default to smallest count (drop through) */
+		case 512:
+			bf_set(lpfc_rq_context_rqe_count,
+			       &rq_create->u.request.context,
+			       LPFC_RQ_RING_SIZE_512);
+			break;
+		case 1024:
+			bf_set(lpfc_rq_context_rqe_count,
+			       &rq_create->u.request.context,
+			       LPFC_RQ_RING_SIZE_1024);
+			break;
+		case 2048:
+			bf_set(lpfc_rq_context_rqe_count,
+			       &rq_create->u.request.context,
+			       LPFC_RQ_RING_SIZE_2048);
+			break;
+		case 4096:
+			bf_set(lpfc_rq_context_rqe_count,
+			       &rq_create->u.request.context,
+			       LPFC_RQ_RING_SIZE_4096);
+			break;
+		}
+		bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
+		       LPFC_HDR_BUF_SIZE);
 	}
 	bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
 	       cq->queue_id);
 	bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
 	       hrq->page_count);
-	bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
-	       LPFC_HDR_BUF_SIZE);
 	list_for_each_entry(dmabuf, &hrq->page_list, list) {
 		memset(dmabuf->virt, 0, hw_page_size);
 		rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
@@ -10855,7 +11013,6 @@ lpfc_rq_create(struct lpfc_hba *phba, struct lpfc_queue *hrq,
 	}
 	rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
 	/* The IOCTL status is embedded in the mailbox subheader. */
-	shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
 	shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
 	shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
 	if (shdr_status || shdr_add_status || rc) {
@@ -10881,37 +11038,50 @@ lpfc_rq_create(struct lpfc_hba *phba, struct lpfc_queue *hrq,
 	lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
 			 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
 			 length, LPFC_SLI4_MBX_EMBED);
-	switch (drq->entry_count) {
-	default:
-		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
-				"2536 Unsupported RQ count. (%d)\n",
-				drq->entry_count);
-		if (drq->entry_count < 512)
-			return -EINVAL;
-		/* otherwise default to smallest count (drop through) */
-	case 512:
-		bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
-		       LPFC_RQ_RING_SIZE_512);
-		break;
-	case 1024:
-		bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
-		       LPFC_RQ_RING_SIZE_1024);
-		break;
-	case 2048:
-		bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
-		       LPFC_RQ_RING_SIZE_2048);
-		break;
-	case 4096:
-		bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
-		       LPFC_RQ_RING_SIZE_4096);
-		break;
+	bf_set(lpfc_mbox_hdr_version, &shdr->request,
+	       phba->sli4_hba.pc_sli4_params.rqv);
+	if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) {
+		bf_set(lpfc_rq_context_rqe_count_1,
+		       &rq_create->u.request.context,
+		       hrq->entry_count);
+		rq_create->u.request.context.buffer_size = LPFC_DATA_BUF_SIZE;
+	} else {
+		switch (drq->entry_count) {
+		default:
+			lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+					"2536 Unsupported RQ count. (%d)\n",
+					drq->entry_count);
+			if (drq->entry_count < 512)
+				return -EINVAL;
+			/* otherwise default to smallest count (drop through) */
+		case 512:
+			bf_set(lpfc_rq_context_rqe_count,
+			       &rq_create->u.request.context,
+			       LPFC_RQ_RING_SIZE_512);
+			break;
+		case 1024:
+			bf_set(lpfc_rq_context_rqe_count,
+			       &rq_create->u.request.context,
+			       LPFC_RQ_RING_SIZE_1024);
+			break;
+		case 2048:
+			bf_set(lpfc_rq_context_rqe_count,
+			       &rq_create->u.request.context,
+			       LPFC_RQ_RING_SIZE_2048);
+			break;
+		case 4096:
+			bf_set(lpfc_rq_context_rqe_count,
+			       &rq_create->u.request.context,
+			       LPFC_RQ_RING_SIZE_4096);
+			break;
+		}
+		bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
+		       LPFC_DATA_BUF_SIZE);
 	}
 	bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
 	       cq->queue_id);
 	bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
 	       drq->page_count);
-	bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
-	       LPFC_DATA_BUF_SIZE);
 	list_for_each_entry(dmabuf, &drq->page_list, list) {
 		rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
 					putPaddrLow(dmabuf->phys);
@@ -11580,6 +11750,7 @@ lpfc_fc_frame_check(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr)
 	static char *rctl_names[] = FC_RCTL_NAMES_INIT;
 	char *type_names[] = FC_TYPE_NAMES_INIT;
 	struct fc_vft_header *fc_vft_hdr;
+	uint32_t *header = (uint32_t *) fc_hdr;
 
 	switch (fc_hdr->fh_r_ctl) {
 	case FC_RCTL_DD_UNCAT:		/* uncategorized information */
@@ -11628,10 +11799,15 @@ lpfc_fc_frame_check(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr)
 	default:
 		goto drop;
 	}
+
 	lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
-			"2538 Received frame rctl:%s type:%s\n",
+			"2538 Received frame rctl:%s type:%s "
+			"Frame Data:%08x %08x %08x %08x %08x %08x\n",
 			rctl_names[fc_hdr->fh_r_ctl],
-			type_names[fc_hdr->fh_type]);
+			type_names[fc_hdr->fh_type],
+			be32_to_cpu(header[0]), be32_to_cpu(header[1]),
+			be32_to_cpu(header[2]), be32_to_cpu(header[3]),
+			be32_to_cpu(header[4]), be32_to_cpu(header[5]));
 	return 0;
 drop:
 	lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
@@ -11928,17 +12104,17 @@ lpfc_sli4_abort_partial_seq(struct lpfc_vport *vport,
 }
 
 /**
- * lpfc_sli4_seq_abort_acc_cmpl - Accept seq abort iocb complete handler
+ * lpfc_sli4_seq_abort_rsp_cmpl - BLS ABORT RSP seq abort iocb complete handler
  * @phba: Pointer to HBA context object.
  * @cmd_iocbq: pointer to the command iocbq structure.
  * @rsp_iocbq: pointer to the response iocbq structure.
  *
- * This function handles the sequence abort accept iocb command complete
+ * This function handles the sequence abort response iocb command complete
  * event. It properly releases the memory allocated to the sequence abort
  * accept iocb.
  **/
 static void
-lpfc_sli4_seq_abort_acc_cmpl(struct lpfc_hba *phba,
+lpfc_sli4_seq_abort_rsp_cmpl(struct lpfc_hba *phba,
 			     struct lpfc_iocbq *cmd_iocbq,
 			     struct lpfc_iocbq *rsp_iocbq)
 {
@@ -11947,15 +12123,15 @@ lpfc_sli4_seq_abort_acc_cmpl(struct lpfc_hba *phba,
 }
 
 /**
- * lpfc_sli4_seq_abort_acc - Accept sequence abort
+ * lpfc_sli4_seq_abort_rsp - bls rsp to sequence abort
  * @phba: Pointer to HBA context object.
  * @fc_hdr: pointer to a FC frame header.
  *
- * This function sends a basic accept to a previous unsol sequence abort
+ * This function sends a basic response to a previous unsol sequence abort
  * event after aborting the sequence handling.
  **/
 static void
-lpfc_sli4_seq_abort_acc(struct lpfc_hba *phba,
+lpfc_sli4_seq_abort_rsp(struct lpfc_hba *phba,
 			struct fc_frame_header *fc_hdr)
 {
 	struct lpfc_iocbq *ctiocb = NULL;
@@ -11963,6 +12139,7 @@ lpfc_sli4_seq_abort_acc(struct lpfc_hba *phba,
 	uint16_t oxid, rxid;
 	uint32_t sid, fctl;
 	IOCB_t *icmd;
+	int rc;
 
 	if (!lpfc_is_link_up(phba))
 		return;
@@ -11983,7 +12160,7 @@ lpfc_sli4_seq_abort_acc(struct lpfc_hba *phba,
 		+ phba->sli4_hba.max_cfg_param.xri_base))
 		lpfc_set_rrq_active(phba, ndlp, rxid, oxid, 0);
 
-	/* Allocate buffer for acc iocb */
+	/* Allocate buffer for rsp iocb */
 	ctiocb = lpfc_sli_get_iocbq(phba);
 	if (!ctiocb)
 		return;
@@ -12008,32 +12185,54 @@ lpfc_sli4_seq_abort_acc(struct lpfc_hba *phba,
 
 	ctiocb->iocb_cmpl = NULL;
 	ctiocb->vport = phba->pport;
-	ctiocb->iocb_cmpl = lpfc_sli4_seq_abort_acc_cmpl;
+	ctiocb->iocb_cmpl = lpfc_sli4_seq_abort_rsp_cmpl;
+	ctiocb->sli4_xritag = NO_XRI;
+
+	/* If the oxid maps to the FCP XRI range or if it is out of range,
+	 * send a BLS_RJT.  The driver no longer has that exchange.
+	 * Override the IOCB for a BA_RJT.
+	 */
+	if (oxid > (phba->sli4_hba.max_cfg_param.max_xri +
+		    phba->sli4_hba.max_cfg_param.xri_base) ||
+	    oxid > (lpfc_sli4_get_els_iocb_cnt(phba) +
+		    phba->sli4_hba.max_cfg_param.xri_base)) {
+		icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_RJT;
+		bf_set(lpfc_vndr_code, &icmd->un.bls_rsp, 0);
+		bf_set(lpfc_rsn_expln, &icmd->un.bls_rsp, FC_BA_RJT_INV_XID);
+		bf_set(lpfc_rsn_code, &icmd->un.bls_rsp, FC_BA_RJT_UNABLE);
+	}
 
 	if (fctl & FC_FC_EX_CTX) {
 		/* ABTS sent by responder to CT exchange, construction
 		 * of BA_ACC will use OX_ID from ABTS for the XRI_TAG
 		 * field and RX_ID from ABTS for RX_ID field.
 		 */
-		bf_set(lpfc_abts_orig, &icmd->un.bls_acc, LPFC_ABTS_UNSOL_RSP);
-		bf_set(lpfc_abts_rxid, &icmd->un.bls_acc, rxid);
-		ctiocb->sli4_xritag = oxid;
+		bf_set(lpfc_abts_orig, &icmd->un.bls_rsp, LPFC_ABTS_UNSOL_RSP);
+		bf_set(lpfc_abts_rxid, &icmd->un.bls_rsp, rxid);
 	} else {
 		/* ABTS sent by initiator to CT exchange, construction
 		 * of BA_ACC will need to allocate a new XRI as for the
 		 * XRI_TAG and RX_ID fields.
 		 */
-		bf_set(lpfc_abts_orig, &icmd->un.bls_acc, LPFC_ABTS_UNSOL_INT);
-		bf_set(lpfc_abts_rxid, &icmd->un.bls_acc, NO_XRI);
-		ctiocb->sli4_xritag = NO_XRI;
+		bf_set(lpfc_abts_orig, &icmd->un.bls_rsp, LPFC_ABTS_UNSOL_INT);
+		bf_set(lpfc_abts_rxid, &icmd->un.bls_rsp, NO_XRI);
 	}
-	bf_set(lpfc_abts_oxid, &icmd->un.bls_acc, oxid);
+	bf_set(lpfc_abts_oxid, &icmd->un.bls_rsp, oxid);
 
-	/* Xmit CT abts accept on exchange <xid> */
+	/* Xmit CT abts response on exchange <xid> */
 	lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
-			"1200 Xmit CT ABTS ACC on exchange x%x Data: x%x\n",
-			CMD_XMIT_BLS_RSP64_CX, phba->link_state);
-	lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, ctiocb, 0);
+			"1200 Send BLS cmd x%x on oxid x%x Data: x%x\n",
+			icmd->un.xseq64.w5.hcsw.Rctl, oxid, phba->link_state);
+
+	rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, ctiocb, 0);
+	if (rc == IOCB_ERROR) {
+		lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
+				"2925 Failed to issue CT ABTS RSP x%x on "
+				"xri x%x, Data x%x\n",
+				icmd->un.xseq64.w5.hcsw.Rctl, oxid,
+				phba->link_state);
+		lpfc_sli_release_iocbq(phba, ctiocb);
+	}
 }
 
 /**
@@ -12081,7 +12280,7 @@ lpfc_sli4_handle_unsol_abort(struct lpfc_vport *vport,
 			lpfc_in_buf_free(phba, &dmabuf->dbuf);
 	}
 	/* Send basic accept (BA_ACC) to the abort requester */
-	lpfc_sli4_seq_abort_acc(phba, &fc_hdr);
+	lpfc_sli4_seq_abort_rsp(phba, &fc_hdr);
 }
 
 /**
@@ -12772,7 +12971,7 @@ lpfc_sli4_build_dflt_fcf_record(struct lpfc_hba *phba,
  * record and processing it one at a time starting from the @fcf_index
  * for initial FCF discovery or fast FCF failover rediscovery.
  *
- * Return 0 if the mailbox command is submitted sucessfully, none 0
+ * Return 0 if the mailbox command is submitted successfully, none 0
  * otherwise.
  **/
 int
@@ -12833,7 +13032,7 @@ fail_fcf_scan:
  * This routine is invoked to read an FCF record indicated by @fcf_index
  * and to use it for FLOGI roundrobin FCF failover.
  *
- * Return 0 if the mailbox command is submitted sucessfully, none 0
+ * Return 0 if the mailbox command is submitted successfully, none 0
  * otherwise.
  **/
 int
@@ -12879,7 +13078,7 @@ fail_fcf_read:
  * This routine is invoked to read an FCF record indicated by @fcf_index to
  * determine whether it's eligible for FLOGI roundrobin failover list.
  *
- * Return 0 if the mailbox command is submitted sucessfully, none 0
+ * Return 0 if the mailbox command is submitted successfully, none 0
  * otherwise.
  **/
 int
diff --git a/drivers/scsi/lpfc/lpfc_sli4.h b/drivers/scsi/lpfc/lpfc_sli4.h
index 595056b89608..1a3cbf88f2ce 100644
--- a/drivers/scsi/lpfc/lpfc_sli4.h
+++ b/drivers/scsi/lpfc/lpfc_sli4.h
@@ -1,7 +1,7 @@
 /*******************************************************************
  * This file is part of the Emulex Linux Device Driver for         *
  * Fibre Channel Host Bus Adapters.                                *
- * Copyright (C) 2009 Emulex.  All rights reserved.                *
+ * Copyright (C) 2009-2011 Emulex.  All rights reserved.           *
  * EMULEX and SLI are trademarks of Emulex.                        *
  * www.emulex.com                                                  *
  *                                                                 *
diff --git a/drivers/scsi/lpfc/lpfc_version.h b/drivers/scsi/lpfc/lpfc_version.h
index 0a4d376dbca5..2404d1d65563 100644
--- a/drivers/scsi/lpfc/lpfc_version.h
+++ b/drivers/scsi/lpfc/lpfc_version.h
@@ -18,7 +18,7 @@
  * included with this package.                                     *
  *******************************************************************/
 
-#define LPFC_DRIVER_VERSION "8.3.21"
+#define LPFC_DRIVER_VERSION "8.3.22"
 #define LPFC_DRIVER_NAME		"lpfc"
 #define LPFC_SP_DRIVER_HANDLER_NAME	"lpfc:sp"
 #define LPFC_FP_DRIVER_HANDLER_NAME	"lpfc:fp"
diff --git a/drivers/scsi/megaraid.c b/drivers/scsi/megaraid.c
index c212694a9714..f2684dd09ed0 100644
--- a/drivers/scsi/megaraid.c
+++ b/drivers/scsi/megaraid.c
@@ -284,7 +284,7 @@ mega_query_adapter(adapter_t *adapter)
 
 	adapter->host->max_id = 16;	/* max targets per channel */
 
-	adapter->host->max_lun = 7;	/* Upto 7 luns for non disk devices */
+	adapter->host->max_lun = 7;	/* Up to 7 luns for non disk devices */
 
 	adapter->host->cmd_per_lun = max_cmd_per_lun;
 
@@ -3734,7 +3734,7 @@ mega_m_to_n(void __user *arg, nitioctl_t *uioc)
 	 * check is the application conforms to NIT. We do not have to do much
 	 * in that case.
 	 * We exploit the fact that the signature is stored in the very
-	 * begining of the structure.
+	 * beginning of the structure.
 	 */
 
 	if( copy_from_user(signature, arg, 7) )
diff --git a/drivers/scsi/megaraid.h b/drivers/scsi/megaraid.h
index 853411911b2e..9a7897f8ca43 100644
--- a/drivers/scsi/megaraid.h
+++ b/drivers/scsi/megaraid.h
@@ -532,9 +532,9 @@ struct uioctl_t {
 
 /*
  * struct mcontroller is used to pass information about the controllers in the
- * system. Its upto the application how to use the information. We are passing
+ * system. Its up to the application how to use the information. We are passing
  * as much info about the cards as possible and useful. Before issuing the
- * call to find information about the cards, the applicaiton needs to issue a
+ * call to find information about the cards, the application needs to issue a
  * ioctl first to find out the number of controllers in the system.
  */
 #define MAX_CONTROLLERS 32
@@ -804,7 +804,7 @@ typedef struct {
 	unsigned long		base;
 	void __iomem		*mmio_base;
 
-	/* mbox64 with mbox not aligned on 16-byte boundry */
+	/* mbox64 with mbox not aligned on 16-byte boundary */
 	mbox64_t	*una_mbox64;
 	dma_addr_t	una_mbox64_dma;
 
diff --git a/drivers/scsi/megaraid/mbox_defs.h b/drivers/scsi/megaraid/mbox_defs.h
index ce2487a888ed..e01c6f7c2cac 100644
--- a/drivers/scsi/megaraid/mbox_defs.h
+++ b/drivers/scsi/megaraid/mbox_defs.h
@@ -660,7 +660,7 @@ typedef struct {
  * @lparam	: logical drives parameters
  * @span	: span
  *
- * 8-LD logical drive with upto 8 spans
+ * 8-LD logical drive with up to 8 spans
  */
 typedef struct {
 	logdrv_param_t	lparam;
@@ -673,7 +673,7 @@ typedef struct {
  * @lparam	: logical drives parameters
  * @span	: span
  *
- * 8-LD logical drive with upto 4 spans
+ * 8-LD logical drive with up to 4 spans
  */
 typedef struct {
 	logdrv_param_t	lparam;
@@ -720,7 +720,7 @@ typedef struct {
  * @ldrv	: logical drives information
  * @pdrv	: physical drives information
  *
- * Disk array for 8LD logical drives with upto 8 spans
+ * Disk array for 8LD logical drives with up to 8 spans
  */
 typedef struct {
 	uint8_t			numldrv;
@@ -737,7 +737,7 @@ typedef struct {
  * @ldrv	: logical drives information
  * @pdrv	: physical drives information
  *
- * Disk array for 8LD logical drives with upto 4 spans
+ * Disk array for 8LD logical drives with up to 4 spans
  */
 typedef struct {
 	uint8_t			numldrv;
diff --git a/drivers/scsi/megaraid/megaraid_mbox.c b/drivers/scsi/megaraid/megaraid_mbox.c
index 5708cb27d078..1dba32870b4c 100644
--- a/drivers/scsi/megaraid/megaraid_mbox.c
+++ b/drivers/scsi/megaraid/megaraid_mbox.c
@@ -2689,7 +2689,7 @@ megaraid_reset_handler(struct scsi_cmnd *scp)
 				(MBOX_RESET_WAIT + MBOX_RESET_EXT_WAIT) - i));
 		}
 
-		// bailout if no recovery happended in reset time
+		// bailout if no recovery happened in reset time
 		if (adapter->outstanding_cmds == 0) {
 			break;
 		}
@@ -3452,7 +3452,7 @@ megaraid_mbox_display_scb(adapter_t *adapter, scb_t *scb)
  * megaraid_mbox_setup_device_map - manage device ids
  * @adapter	: Driver's soft state
  *
- * Manange the device ids to have an appropraite mapping between the kernel
+ * Manange the device ids to have an appropriate mapping between the kernel
  * scsi addresses and megaraid scsi and logical drive addresses. We export
  * scsi devices on their actual addresses, whereas the logical drives are
  * exported on a virtual scsi channel.
@@ -3973,7 +3973,7 @@ megaraid_sysfs_get_ldmap_timeout(unsigned long data)
  * NOTE: The commands issuance functionality is not generalized and
  * implemented in context of "get ld map" command only. If required, the
  * command issuance logical can be trivially pulled out and implemented as a
- * standalone libary. For now, this should suffice since there is no other
+ * standalone library. For now, this should suffice since there is no other
  * user of this interface.
  *
  * Return 0 on success.
diff --git a/drivers/scsi/megaraid/megaraid_sas.h b/drivers/scsi/megaraid/megaraid_sas.h
index 635b228c3ead..046dcc672ec1 100644
--- a/drivers/scsi/megaraid/megaraid_sas.h
+++ b/drivers/scsi/megaraid/megaraid_sas.h
@@ -1347,7 +1347,7 @@ struct megasas_instance {
 	struct timer_list io_completion_timer;
 	struct list_head internal_reset_pending_q;
 
-	/* Ptr to hba specfic information */
+	/* Ptr to hba specific information */
 	void *ctrl_context;
 	u8	msi_flag;
 	struct msix_entry msixentry;
diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c
index bbd10c81fd9c..66d4cea4df98 100644
--- a/drivers/scsi/megaraid/megaraid_sas_base.c
+++ b/drivers/scsi/megaraid/megaraid_sas_base.c
@@ -1698,7 +1698,7 @@ void megasas_do_ocr(struct megasas_instance *instance)
  * megasas_wait_for_outstanding -	Wait for all outstanding cmds
  * @instance:				Adapter soft state
  *
- * This function waits for upto MEGASAS_RESET_WAIT_TIME seconds for FW to
+ * This function waits for up to MEGASAS_RESET_WAIT_TIME seconds for FW to
  * complete all its outstanding commands. Returns error if one or more IOs
  * are pending after this time period. It also marks the controller dead.
  */
diff --git a/drivers/scsi/mpt2sas/mpi/mpi2_init.h b/drivers/scsi/mpt2sas/mpi/mpi2_init.h
index 20e6b8869341..165454d52591 100644
--- a/drivers/scsi/mpt2sas/mpi/mpi2_init.h
+++ b/drivers/scsi/mpt2sas/mpi/mpi2_init.h
@@ -21,7 +21,7 @@
  *  05-21-08  02.00.05  Fixed typo in name of Mpi2SepRequest_t.
  *  10-02-08  02.00.06  Removed Untagged and No Disconnect values from SCSI IO
  *                      Control field Task Attribute flags.
- *                      Moved LUN field defines to mpi2.h becasue they are
+ *                      Moved LUN field defines to mpi2.h because they are
  *                      common to many structures.
  *  05-06-09  02.00.07  Changed task management type of Query Unit Attention to
  *                      Query Asynchronous Event.
diff --git a/drivers/scsi/mpt2sas/mpt2sas_base.c b/drivers/scsi/mpt2sas/mpt2sas_base.c
index e8a6f1cf1e4b..3346357031e9 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_base.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_base.c
@@ -925,7 +925,7 @@ _base_interrupt(int irq, void *bus_id)
 }
 
 /**
- * mpt2sas_base_release_callback_handler - clear interupt callback handler
+ * mpt2sas_base_release_callback_handler - clear interrupt callback handler
  * @cb_idx: callback index
  *
  * Return nothing.
@@ -1113,7 +1113,7 @@ _base_restore_msix_table(struct MPT2SAS_ADAPTER *ioc)
  * @ioc: per adapter object
  *
  * Check to see if card is capable of MSIX, and set number
- * of avaliable msix vectors
+ * of available msix vectors
  */
 static int
 _base_check_enable_msix(struct MPT2SAS_ADAPTER *ioc)
@@ -1595,7 +1595,7 @@ mpt2sas_base_put_smid_scsi_io(struct MPT2SAS_ADAPTER *ioc, u16 smid, u16 handle)
 
 
 /**
- * mpt2sas_base_put_smid_hi_priority - send Task Managment request to firmware
+ * mpt2sas_base_put_smid_hi_priority - send Task Management request to firmware
  * @ioc: per adapter object
  * @smid: system request message index
  *
@@ -1748,6 +1748,54 @@ _base_display_intel_branding(struct MPT2SAS_ADAPTER *ioc)
 }
 
 /**
+ * _base_display_hp_branding - Display branding string
+ * @ioc: per adapter object
+ *
+ * Return nothing.
+ */
+static void
+_base_display_hp_branding(struct MPT2SAS_ADAPTER *ioc)
+{
+	if (ioc->pdev->subsystem_vendor != MPT2SAS_HP_3PAR_SSVID)
+		return;
+
+	switch (ioc->pdev->device) {
+	case MPI2_MFGPAGE_DEVID_SAS2004:
+		switch (ioc->pdev->subsystem_device) {
+		case MPT2SAS_HP_DAUGHTER_2_4_INTERNAL_SSDID:
+			printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
+			    MPT2SAS_HP_DAUGHTER_2_4_INTERNAL_BRANDING);
+			break;
+		default:
+			break;
+		}
+	case MPI2_MFGPAGE_DEVID_SAS2308_2:
+		switch (ioc->pdev->subsystem_device) {
+		case MPT2SAS_HP_2_4_INTERNAL_SSDID:
+			printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
+			    MPT2SAS_HP_2_4_INTERNAL_BRANDING);
+			break;
+		case MPT2SAS_HP_2_4_EXTERNAL_SSDID:
+			printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
+			    MPT2SAS_HP_2_4_EXTERNAL_BRANDING);
+			break;
+		case MPT2SAS_HP_1_4_INTERNAL_1_4_EXTERNAL_SSDID:
+			printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
+			    MPT2SAS_HP_1_4_INTERNAL_1_4_EXTERNAL_BRANDING);
+			break;
+		case MPT2SAS_HP_EMBEDDED_2_4_INTERNAL_SSDID:
+			printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
+			    MPT2SAS_HP_EMBEDDED_2_4_INTERNAL_BRANDING);
+			break;
+		default:
+			break;
+		}
+	default:
+		break;
+	}
+}
+
+/**
  * _base_display_ioc_capabilities - Disply IOC's capabilities.
  * @ioc: per adapter object
  *
@@ -1778,6 +1826,7 @@ _base_display_ioc_capabilities(struct MPT2SAS_ADAPTER *ioc)
 
 	_base_display_dell_branding(ioc);
 	_base_display_intel_branding(ioc);
+	_base_display_hp_branding(ioc);
 
 	printk(MPT2SAS_INFO_FMT "Protocol=(", ioc->name);
 
@@ -2550,7 +2599,7 @@ _base_wait_for_doorbell_int(struct MPT2SAS_ADAPTER *ioc, int timeout,
 		int_status = readl(&ioc->chip->HostInterruptStatus);
 		if (int_status & MPI2_HIS_IOC2SYS_DB_STATUS) {
 			dhsprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: "
-			    "successfull count(%d), timeout(%d)\n", ioc->name,
+			    "successful count(%d), timeout(%d)\n", ioc->name,
 			    __func__, count, timeout));
 			return 0;
 		}
@@ -2591,7 +2640,7 @@ _base_wait_for_doorbell_ack(struct MPT2SAS_ADAPTER *ioc, int timeout,
 		int_status = readl(&ioc->chip->HostInterruptStatus);
 		if (!(int_status & MPI2_HIS_SYS2IOC_DB_STATUS)) {
 			dhsprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: "
-			    "successfull count(%d), timeout(%d)\n", ioc->name,
+			    "successful count(%d), timeout(%d)\n", ioc->name,
 			    __func__, count, timeout));
 			return 0;
 		} else if (int_status & MPI2_HIS_IOC2SYS_DB_STATUS) {
@@ -2639,7 +2688,7 @@ _base_wait_for_doorbell_not_used(struct MPT2SAS_ADAPTER *ioc, int timeout,
 		doorbell_reg = readl(&ioc->chip->Doorbell);
 		if (!(doorbell_reg & MPI2_DOORBELL_USED)) {
 			dhsprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: "
-			    "successfull count(%d), timeout(%d)\n", ioc->name,
+			    "successful count(%d), timeout(%d)\n", ioc->name,
 			    __func__, count, timeout));
 			return 0;
 		}
diff --git a/drivers/scsi/mpt2sas/mpt2sas_base.h b/drivers/scsi/mpt2sas/mpt2sas_base.h
index a3f8aa9baea4..500328245f61 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_base.h
+++ b/drivers/scsi/mpt2sas/mpt2sas_base.h
@@ -168,6 +168,26 @@
 #define MPT2SAS_INTEL_RMS2LL080_SSDID          0x350E
 #define MPT2SAS_INTEL_RMS2LL040_SSDID          0x350F
 
+
+/*
+ * HP HBA branding
+ */
+#define MPT2SAS_HP_3PAR_SSVID                0x1590
+#define MPT2SAS_HP_2_4_INTERNAL_BRANDING        "HP H220 Host Bus Adapter"
+#define MPT2SAS_HP_2_4_EXTERNAL_BRANDING        "HP H221 Host Bus Adapter"
+#define MPT2SAS_HP_1_4_INTERNAL_1_4_EXTERNAL_BRANDING "HP H222 Host Bus Adapter"
+#define MPT2SAS_HP_EMBEDDED_2_4_INTERNAL_BRANDING    "HP H220i Host Bus Adapter"
+#define MPT2SAS_HP_DAUGHTER_2_4_INTERNAL_BRANDING    "HP H210i Host Bus Adapter"
+
+/*
+ * HO HBA SSDIDs
+ */
+#define MPT2SAS_HP_2_4_INTERNAL_SSDID            0x0041
+#define MPT2SAS_HP_2_4_EXTERNAL_SSDID            0x0042
+#define MPT2SAS_HP_1_4_INTERNAL_1_4_EXTERNAL_SSDID    0x0043
+#define MPT2SAS_HP_EMBEDDED_2_4_INTERNAL_SSDID        0x0044
+#define MPT2SAS_HP_DAUGHTER_2_4_INTERNAL_SSDID        0x0046
+
 /*
  * per target private data
  */
diff --git a/drivers/scsi/mpt2sas/mpt2sas_config.c b/drivers/scsi/mpt2sas/mpt2sas_config.c
index 6afd67b324fe..6861244249a3 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_config.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_config.c
@@ -93,7 +93,7 @@ struct config_request{
  * @mpi_reply: reply message frame
  * Context: none.
  *
- * Function for displaying debug info helpfull when debugging issues
+ * Function for displaying debug info helpful when debugging issues
  * in this module.
  */
 static void
diff --git a/drivers/scsi/mpt2sas/mpt2sas_ctl.c b/drivers/scsi/mpt2sas/mpt2sas_ctl.c
index e92b77af5484..1c6d2b405eef 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_ctl.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_ctl.c
@@ -116,7 +116,7 @@ _ctl_sas_device_find_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
  * @mpi_reply: reply message frame
  * Context: none.
  *
- * Function for displaying debug info helpfull when debugging issues
+ * Function for displaying debug info helpful when debugging issues
  * in this module.
  */
 static void
diff --git a/drivers/scsi/mpt2sas/mpt2sas_scsih.c b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
index 6ceb7759bfe5..d2064a0533ae 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
@@ -397,7 +397,7 @@ _scsih_get_sas_address(struct MPT2SAS_ADAPTER *ioc, u16 handle,
  * @is_raid: [flag] 1 = raid object, 0 = sas object
  *
  * Determines whether this device should be first reported device to
- * to scsi-ml or sas transport, this purpose is for persistant boot device.
+ * to scsi-ml or sas transport, this purpose is for persistent boot device.
  * There are primary, alternate, and current entries in bios page 2. The order
  * priority is primary, alternate, then current.  This routine saves
  * the corresponding device object and is_raid flag in the ioc object.
@@ -2671,10 +2671,10 @@ _scsih_block_io_to_children_attached_directly(struct MPT2SAS_ADAPTER *ioc,
  * @handle: device handle
  * Context: interrupt time.
  *
- * This code is to initiate the device removal handshake protocal
+ * This code is to initiate the device removal handshake protocol
  * with controller firmware.  This function will issue target reset
  * using high priority request queue.  It will send a sas iounit
- * controll request (MPI2_SAS_OP_REMOVE_DEVICE) from this completion.
+ * control request (MPI2_SAS_OP_REMOVE_DEVICE) from this completion.
  *
  * This is designed to send muliple task management request at the same
  * time to the fifo. If the fifo is full, we will append the request,
@@ -2749,9 +2749,9 @@ _scsih_tm_tr_send(struct MPT2SAS_ADAPTER *ioc, u16 handle)
  * @reply: reply message frame(lower 32bit addr)
  * Context: interrupt time.
  *
- * This is the sas iounit controll completion routine.
+ * This is the sas iounit control completion routine.
  * This code is part of the code to initiate the device removal
- * handshake protocal with controller firmware.
+ * handshake protocol with controller firmware.
  *
  * Return 1 meaning mf should be freed from _base_interrupt
  *        0 means the mf is freed from this function.
@@ -2878,8 +2878,8 @@ _scsih_tm_volume_tr_complete(struct MPT2SAS_ADAPTER *ioc, u16 smid,
  *
  * This is the target reset completion routine.
  * This code is part of the code to initiate the device removal
- * handshake protocal with controller firmware.
- * It will send a sas iounit controll request (MPI2_SAS_OP_REMOVE_DEVICE)
+ * handshake protocol with controller firmware.
+ * It will send a sas iounit control request (MPI2_SAS_OP_REMOVE_DEVICE)
  *
  * Return 1 meaning mf should be freed from _base_interrupt
  *        0 means the mf is freed from this function.
@@ -2984,7 +2984,7 @@ _scsih_check_for_pending_tm(struct MPT2SAS_ADAPTER *ioc, u16 smid)
  *
  * This routine added to better handle cable breaker.
  *
- * This handles the case where driver recieves multiple expander
+ * This handles the case where driver receives multiple expander
  * add and delete events in a single shot.  When there is a delete event
  * the routine will void any pending add events waiting in the event queue.
  *
@@ -3511,7 +3511,7 @@ _scsih_normalize_sense(char *sense_buffer, struct sense_info *data)
 
 #ifdef CONFIG_SCSI_MPT2SAS_LOGGING
 /**
- * _scsih_scsi_ioc_info - translated non-successfull SCSI_IO request
+ * _scsih_scsi_ioc_info - translated non-successful SCSI_IO request
  * @ioc: per adapter object
  * @scmd: pointer to scsi command object
  * @mpi_reply: reply mf payload returned from firmware
@@ -5138,7 +5138,7 @@ _scsih_sas_broadcast_primative_event(struct MPT2SAS_ADAPTER *ioc,
 	unsigned long flags;
 	int r;
 
-	dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "broadcast primative: "
+	dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "broadcast primitive: "
 	    "phy number(%d), width(%d)\n", ioc->name, event_data->PhyNum,
 	    event_data->PortWidth));
 	dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: enter\n", ioc->name,
diff --git a/drivers/scsi/mvsas/mv_init.c b/drivers/scsi/mvsas/mv_init.c
index 19ad34f381a5..938d045e4180 100644
--- a/drivers/scsi/mvsas/mv_init.c
+++ b/drivers/scsi/mvsas/mv_init.c
@@ -663,6 +663,13 @@ static struct pci_device_id __devinitdata mvs_pci_table[] = {
 	{ PCI_VDEVICE(ARECA, PCI_DEVICE_ID_ARECA_1300), chip_1300 },
 	{ PCI_VDEVICE(ARECA, PCI_DEVICE_ID_ARECA_1320), chip_1320 },
 	{ PCI_VDEVICE(ADAPTEC2, 0x0450), chip_6440 },
+	{ PCI_VDEVICE(TTI, 0x2710), chip_9480 },
+	{ PCI_VDEVICE(TTI, 0x2720), chip_9480 },
+	{ PCI_VDEVICE(TTI, 0x2721), chip_9480 },
+	{ PCI_VDEVICE(TTI, 0x2722), chip_9480 },
+	{ PCI_VDEVICE(TTI, 0x2740), chip_9480 },
+	{ PCI_VDEVICE(TTI, 0x2744), chip_9480 },
+	{ PCI_VDEVICE(TTI, 0x2760), chip_9480 },
 
 	{ }	/* terminate list */
 };
diff --git a/drivers/scsi/ncr53c8xx.c b/drivers/scsi/ncr53c8xx.c
index 46cc3825638d..835d8d66e696 100644
--- a/drivers/scsi/ncr53c8xx.c
+++ b/drivers/scsi/ncr53c8xx.c
@@ -2679,7 +2679,7 @@ static	struct script script0 __initdata = {
 }/*-------------------------< RESEL_TAG >-------------------*/,{
 	/*
 	**	Read IDENTIFY + SIMPLE + TAG using a single MOVE.
-	**	Agressive optimization, is'nt it?
+	**	Aggressive optimization, is'nt it?
 	**	No need to test the SIMPLE TAG message, since the 
 	**	driver only supports conformant devices for tags. ;-)
 	*/
diff --git a/drivers/scsi/nsp32.c b/drivers/scsi/nsp32.c
index 6b8b021400f8..f6a50c98c36f 100644
--- a/drivers/scsi/nsp32.c
+++ b/drivers/scsi/nsp32.c
@@ -1288,7 +1288,7 @@ static irqreturn_t do_nsp32_isr(int irq, void *dev_id)
 			nsp32_dbg(NSP32_DEBUG_INTR, "SSACK=0x%lx", 
 				    nsp32_read4(base, SAVED_SACK_CNT));
 
-			scsi_set_resid(SCpnt, 0); /* all data transfered! */
+			scsi_set_resid(SCpnt, 0); /* all data transferred! */
 		}
 
 		/*
@@ -1630,7 +1630,7 @@ static int nsp32_busfree_occur(struct scsi_cmnd *SCpnt, unsigned short execph)
 
 			/*
 			 * If SAVEDSACKCNT == 0, it means SavedDataPointer is
-			 * come after data transfering.
+			 * come after data transferring.
 			 */
 			if (s_sacklen > 0) {
 				/*
@@ -1785,7 +1785,7 @@ static void nsp32_adjust_busfree(struct scsi_cmnd *SCpnt, unsigned int s_sacklen
 		   the head element of the sg. restlen is correctly calculated. */
 	}
 
-	/* calculate the rest length for transfering */
+	/* calculate the rest length for transferring */
 	restlen = sentlen - s_sacklen;
 
 	/* update adjusting current SG table entry */
diff --git a/drivers/scsi/nsp32.h b/drivers/scsi/nsp32.h
index 9565acf1aa72..c0221829069c 100644
--- a/drivers/scsi/nsp32.h
+++ b/drivers/scsi/nsp32.h
@@ -507,7 +507,7 @@ typedef struct _nsp32_lunt {
 /*
  * SCSI TARGET/LUN definition
  */
-#define NSP32_HOST_SCSIID    7  /* SCSI initiator is everytime defined as 7 */
+#define NSP32_HOST_SCSIID    7  /* SCSI initiator is every time defined as 7 */
 #define MAX_TARGET	     8
 #define MAX_LUN		     8	/* XXX: In SPI3, max number of LUN is 64. */
 
diff --git a/drivers/scsi/osst.c b/drivers/scsi/osst.c
index 521e2182d45b..58f5be4740e9 100644
--- a/drivers/scsi/osst.c
+++ b/drivers/scsi/osst.c
@@ -1366,7 +1366,7 @@ error:
 /* The values below are based on the OnStream frame payload size of 32K == 2**15,
  * that is, OSST_FRAME_SHIFT + OSST_SECTOR_SHIFT must be 15. With a minimum block
  * size of 512 bytes, we need to be able to resolve 32K/512 == 64 == 2**6 positions
- * inside each frame. Finaly, OSST_SECTOR_MASK == 2**OSST_FRAME_SHIFT - 1.
+ * inside each frame. Finally, OSST_SECTOR_MASK == 2**OSST_FRAME_SHIFT - 1.
  */
 #define OSST_FRAME_SHIFT  6
 #define OSST_SECTOR_SHIFT 9
@@ -3131,7 +3131,7 @@ static int osst_flush_write_buffer(struct osst_tape *STp, struct osst_request **
 		}
 #if DEBUG
 		if (debugging)
-			printk(OSST_DEB_MSG "%s:D: Flushing %d bytes, Transfering %d bytes in %d lblocks.\n",
+			printk(OSST_DEB_MSG "%s:D: Flushing %d bytes, Transferring %d bytes in %d lblocks.\n",
 			  			 name, offset, transfer, blks);
 #endif
 
@@ -3811,7 +3811,7 @@ static ssize_t osst_read(struct file * filp, char __user * buf, size_t count, lo
 
 			if (transfer == 0) {
 				printk(KERN_WARNING
-				  "%s:W: Nothing can be transfered, requested %Zd, tape block size (%d%c).\n",
+				  "%s:W: Nothing can be transferred, requested %Zd, tape block size (%d%c).\n",
 			   		name, count, STp->block_size < 1024?
 					STp->block_size:STp->block_size/1024,
 				       	STp->block_size<1024?'b':'k');
diff --git a/drivers/scsi/osst.h b/drivers/scsi/osst.h
index 11d26c57f3f8..b4fea98ba276 100644
--- a/drivers/scsi/osst.h
+++ b/drivers/scsi/osst.h
@@ -413,7 +413,7 @@ typedef struct os_dat_s {
  * AUX
  */
 typedef struct os_aux_s {
-        __be32          format_id;              /* hardware compability AUX is based on */
+        __be32          format_id;              /* hardware compatibility AUX is based on */
         char            application_sig[4];     /* driver used to write this media */
         __be32          hdwr;                   /* reserved */
         __be32          update_frame_cntr;      /* for configuration frame */
diff --git a/drivers/scsi/pcmcia/nsp_cs.c b/drivers/scsi/pcmcia/nsp_cs.c
index be3f33d31a99..54bdf6d85c6d 100644
--- a/drivers/scsi/pcmcia/nsp_cs.c
+++ b/drivers/scsi/pcmcia/nsp_cs.c
@@ -742,7 +742,7 @@ static void nsp_pio_read(struct scsi_cmnd *SCpnt)
 
 		res = nsp_fifo_count(SCpnt) - ocount;
 		//nsp_dbg(NSP_DEBUG_DATA_IO, "ptr=0x%p this=0x%x ocount=0x%x res=0x%x", SCpnt->SCp.ptr, SCpnt->SCp.this_residual, ocount, res);
-		if (res == 0) { /* if some data avilable ? */
+		if (res == 0) { /* if some data available ? */
 			if (stat == BUSPHASE_DATA_IN) { /* phase changed? */
 				//nsp_dbg(NSP_DEBUG_DATA_IO, " wait for data this=%d", SCpnt->SCp.this_residual);
 				continue;
diff --git a/drivers/scsi/pm8001/pm8001_hwi.c b/drivers/scsi/pm8001/pm8001_hwi.c
index 18b6c55cd08c..8b7db1e53c10 100644
--- a/drivers/scsi/pm8001/pm8001_hwi.c
+++ b/drivers/scsi/pm8001/pm8001_hwi.c
@@ -339,7 +339,7 @@ update_outbnd_queue_table(struct pm8001_hba_info *pm8001_ha, int number)
 
 /**
  * bar4_shift - function is called to shift BAR base address
- * @pm8001_ha : our hba card infomation
+ * @pm8001_ha : our hba card information
  * @shiftValue : shifting value in memory bar.
  */
 static int bar4_shift(struct pm8001_hba_info *pm8001_ha, u32 shiftValue)
diff --git a/drivers/scsi/pm8001/pm8001_hwi.h b/drivers/scsi/pm8001/pm8001_hwi.h
index 833a5201eda4..909132041c07 100644
--- a/drivers/scsi/pm8001/pm8001_hwi.h
+++ b/drivers/scsi/pm8001/pm8001_hwi.h
@@ -209,7 +209,7 @@ struct  pio_setup_fis {
 
 /*
  * brief the data structure of SATA Completion Response
- * use to discribe the sata task response (64 bytes)
+ * use to describe the sata task response (64 bytes)
  */
 struct sata_completion_resp {
 	__le32	tag;
@@ -951,7 +951,7 @@ struct set_dev_state_resp {
 #define PCIE_EVENT_INTERRUPT		0x003044
 #define PCIE_ERROR_INTERRUPT_ENABLE	0x003048
 #define PCIE_ERROR_INTERRUPT		0x00304C
-/* signature defintion for host scratch pad0 register */
+/* signature definition for host scratch pad0 register */
 #define SPC_SOFT_RESET_SIGNATURE	0x252acbcd
 /* Signature for Soft Reset */
 
diff --git a/drivers/scsi/pm8001/pm8001_sas.h b/drivers/scsi/pm8001/pm8001_sas.h
index bdb6b27dedd6..aa05e661d113 100644
--- a/drivers/scsi/pm8001/pm8001_sas.h
+++ b/drivers/scsi/pm8001/pm8001_sas.h
@@ -445,7 +445,7 @@ struct fw_control_info {
 struct fw_control_ex {
 	struct fw_control_info *fw_control;
 	void			*buffer;/* keep buffer pointer to be
-	freed when the responce comes*/
+	freed when the response comes*/
 	void			*virtAddr;/* keep virtual address of the data */
 	void			*usrAddr;/* keep virtual address of the
 	user data */
diff --git a/drivers/scsi/pmcraid.c b/drivers/scsi/pmcraid.c
index bcf858e88c64..96d5ad0c1e42 100644
--- a/drivers/scsi/pmcraid.c
+++ b/drivers/scsi/pmcraid.c
@@ -213,7 +213,7 @@ static int pmcraid_slave_alloc(struct scsi_device *scsi_dev)
  * pmcraid_slave_configure - Configures a SCSI device
  * @scsi_dev: scsi device struct
  *
- * This fucntion is executed by SCSI mid layer just after a device is first
+ * This function is executed by SCSI mid layer just after a device is first
  * scanned (i.e. it has responded to an INQUIRY). For VSET resources, the
  * timeout value (default 30s) will be over-written to a higher value (60s)
  * and max_sectors value will be over-written to 512. It also sets queue depth
@@ -2122,7 +2122,7 @@ static void pmcraid_fail_outstanding_cmds(struct pmcraid_instance *pinstance)
  *
  * This function executes most of the steps required for IOA reset. This gets
  * called by user threads (modprobe/insmod/rmmod) timer, tasklet and midlayer's
- * 'eh_' thread. Access to variables used for controling the reset sequence is
+ * 'eh_' thread. Access to variables used for controlling the reset sequence is
  * synchronized using host lock. Various functions called during reset process
  * would make use of a single command block, pointer to which is also stored in
  * adapter instance structure.
@@ -2994,7 +2994,7 @@ static int pmcraid_abort_complete(struct pmcraid_cmd *cancel_cmd)
 
 	/* If the abort task is not timed out we will get a Good completion
 	 * as sense_key, otherwise we may get one the following responses
-	 * due to subsquent bus reset or device reset. In case IOASC is
+	 * due to subsequent bus reset or device reset. In case IOASC is
 	 * NR_SYNC_REQUIRED, set sync_reqd flag for the corresponding resource
 	 */
 	if (ioasc == PMCRAID_IOASC_UA_BUS_WAS_RESET ||
@@ -3933,7 +3933,7 @@ static long pmcraid_ioctl_passthrough(
 
 			/* if abort task couldn't find the command i.e it got
 			 * completed prior to aborting, return good completion.
-			 * if command got aborted succesfully or there was IOA
+			 * if command got aborted successfully or there was IOA
 			 * reset due to abort task itself getting timedout then
 			 * return -ETIMEDOUT
 			 */
@@ -5932,7 +5932,7 @@ static int __devinit pmcraid_probe(
 	 * However, firmware supports 64-bit streaming DMA buffers, whereas
 	 * coherent buffers are to be 32-bit. Since pci_alloc_consistent always
 	 * returns memory within 4GB (if not, change this logic), coherent
-	 * buffers are within firmware acceptible address ranges.
+	 * buffers are within firmware acceptable address ranges.
 	 */
 	if ((sizeof(dma_addr_t) == 4) ||
 	    pci_set_dma_mask(pdev, DMA_BIT_MASK(64)))
diff --git a/drivers/scsi/pmcraid.h b/drivers/scsi/pmcraid.h
index 4db210d93947..34e4c915002e 100644
--- a/drivers/scsi/pmcraid.h
+++ b/drivers/scsi/pmcraid.h
@@ -1024,7 +1024,7 @@ static struct pmcraid_ioasc_error pmcraid_ioasc_error_table[] = {
 
 
 /*
- * pmcraid_ioctl_header - definition of header structure that preceeds all the
+ * pmcraid_ioctl_header - definition of header structure that precedes all the
  * buffers given as ioctl arguments.
  *
  * .signature           : always ASCII string, "PMCRAID"
diff --git a/drivers/scsi/qla1280.c b/drivers/scsi/qla1280.c
index 5dec684bf010..8ba5744c267e 100644
--- a/drivers/scsi/qla1280.c
+++ b/drivers/scsi/qla1280.c
@@ -78,7 +78,7 @@
 	- Clean up vchan handling
     Rev  3.23.33 July 3, 2003, Jes Sorensen
 	- Don't define register access macros before define determining MMIO.
-	  This just happend to work out on ia64 but not elsewhere.
+	  This just happened to work out on ia64 but not elsewhere.
 	- Don't try and read from the card while it is in reset as
 	  it won't respond and causes an MCA
     Rev  3.23.32 June 23, 2003, Jes Sorensen
diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h
index 6c51c0a35b9e..ee20353c8550 100644
--- a/drivers/scsi/qla2xxx/qla_def.h
+++ b/drivers/scsi/qla2xxx/qla_def.h
@@ -2086,7 +2086,7 @@ struct ct_sns_pkt {
 };
 
 /*
- * SNS command structures -- for 2200 compatability.
+ * SNS command structures -- for 2200 compatibility.
  */
 #define	RFT_ID_SNS_SCMD_LEN	22
 #define	RFT_ID_SNS_CMD_SIZE	60
diff --git a/drivers/scsi/qla2xxx/qla_fw.h b/drivers/scsi/qla2xxx/qla_fw.h
index 631fefc8482d..f5ba09c8a663 100644
--- a/drivers/scsi/qla2xxx/qla_fw.h
+++ b/drivers/scsi/qla2xxx/qla_fw.h
@@ -539,7 +539,7 @@ struct sts_entry_24xx {
 	 * If DIF Error is set in comp_status, these additional fields are
 	 * defined:
 	 * &data[10] : uint8_t report_runt_bg[2];	- computed guard
-	 * &data[12] : uint8_t actual_dif[8];		- DIF Data recieved
+	 * &data[12] : uint8_t actual_dif[8];		- DIF Data received
 	 * &data[20] : uint8_t expected_dif[8];		- DIF Data computed
 	*/
 };
diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c
index d17ed9a94a0c..712518d05128 100644
--- a/drivers/scsi/qla2xxx/qla_isr.c
+++ b/drivers/scsi/qla2xxx/qla_isr.c
@@ -414,7 +414,7 @@ skip_rio:
 				    "marked OFFLINE!\n");
 				vha->flags.online = 0;
 			} else {
-				/* Check to see if MPI timeout occured */
+				/* Check to see if MPI timeout occurred */
 				if ((mbx & MBX_3) && (ha->flags.port0))
 					set_bit(MPI_RESET_NEEDED,
 					    &vha->dpc_flags);
diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c
index 7a7c0ecfe7dd..34893397ac84 100644
--- a/drivers/scsi/qla2xxx/qla_mbx.c
+++ b/drivers/scsi/qla2xxx/qla_mbx.c
@@ -303,7 +303,7 @@ qla2x00_mailbox_command(scsi_qla_host_t *vha, mbx_cmd_t *mcp)
 			    !test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {
 
 				qla_printk(KERN_WARNING, ha,
-				    "Mailbox command timeout occured. "
+				    "Mailbox command timeout occurred. "
 				    "Scheduling ISP " "abort. eeh_busy: 0x%x\n",
 				    ha->flags.eeh_busy);
 				set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
@@ -321,7 +321,7 @@ qla2x00_mailbox_command(scsi_qla_host_t *vha, mbx_cmd_t *mcp)
 			    !test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {
 
 				qla_printk(KERN_WARNING, ha,
-				    "Mailbox command timeout occured. "
+				    "Mailbox command timeout occurred. "
 				    "Issuing ISP abort.\n");
 
 				set_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags);
@@ -3789,7 +3789,7 @@ qla2x00_loopback_test(scsi_qla_host_t *vha, struct msg_echo_lb *mreq,
 	mcp->mb[20] = LSW(MSD(mreq->send_dma));
 	mcp->mb[21] = MSW(MSD(mreq->send_dma));
 
-	/* recieve data address */
+	/* receive data address */
 	mcp->mb[16] = LSW(mreq->rcv_dma);
 	mcp->mb[17] = MSW(mreq->rcv_dma);
 	mcp->mb[6] = LSW(MSD(mreq->rcv_dma));
diff --git a/drivers/scsi/qla2xxx/qla_nx.c b/drivers/scsi/qla2xxx/qla_nx.c
index 76ec876e6b21..455fe134d31d 100644
--- a/drivers/scsi/qla2xxx/qla_nx.c
+++ b/drivers/scsi/qla2xxx/qla_nx.c
@@ -2598,7 +2598,7 @@ qla82xx_calc_dsd_lists(uint16_t dsds)
  * qla82xx_start_scsi() - Send a SCSI command to the ISP
  * @sp: command to send to the ISP
  *
- * Returns non-zero if a failure occured, else zero.
+ * Returns non-zero if a failure occurred, else zero.
  */
 int
 qla82xx_start_scsi(srb_t *sp)
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index 75a966c94860..aa7747529165 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -1046,7 +1046,7 @@ qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
 
 eh_bus_reset_done:
 	qla_printk(KERN_INFO, vha->hw, "%s: reset %s\n", __func__,
-	    (ret == FAILED) ? "failed" : "succeded");
+	    (ret == FAILED) ? "failed" : "succeeded");
 
 	return ret;
 }
@@ -1136,7 +1136,7 @@ qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
 
 eh_host_reset_lock:
 	qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
-	    (ret == FAILED) ? "failed" : "succeded");
+	    (ret == FAILED) ? "failed" : "succeeded");
 
 	return ret;
 }
@@ -3902,7 +3902,7 @@ uint32_t qla82xx_error_recovery(scsi_qla_host_t *base_vha)
 			continue;
 		if (atomic_read(&other_pdev->enable_cnt)) {
 			DEBUG17(qla_printk(KERN_INFO, ha,
-			    "Found PCI func availabe and enabled at 0x%x\n",
+			    "Found PCI func available and enabled at 0x%x\n",
 			    fn));
 			pci_dev_put(other_pdev);
 			break;
diff --git a/drivers/scsi/qla4xxx/ql4_def.h b/drivers/scsi/qla4xxx/ql4_def.h
index 2fc0045b1a52..4757878d59dd 100644
--- a/drivers/scsi/qla4xxx/ql4_def.h
+++ b/drivers/scsi/qla4xxx/ql4_def.h
@@ -53,6 +53,9 @@
 #define PCI_DEVICE_ID_QLOGIC_ISP8022	0x8022
 #endif
 
+#define ISP4XXX_PCI_FN_1	0x1
+#define ISP4XXX_PCI_FN_2	0x3
+
 #define QLA_SUCCESS			0
 #define QLA_ERROR			1
 
@@ -179,7 +182,7 @@ struct srb {
 	uint16_t flags;		/* (1) Status flags. */
 
 #define SRB_DMA_VALID		BIT_3	/* DMA Buffer mapped. */
-#define SRB_GOT_SENSE		BIT_4	/* sense data recieved. */
+#define SRB_GOT_SENSE		BIT_4	/* sense data received. */
 	uint8_t state;		/* (1) Status flags. */
 
 #define SRB_NO_QUEUE_STATE	 0	/* Request is in between states */
@@ -233,9 +236,6 @@ struct ddb_entry {
 
 	unsigned long flags;	/* DDB Flags */
 
-	unsigned long dev_scan_wait_to_start_relogin;
-	unsigned long dev_scan_wait_to_complete_relogin;
-
 	uint16_t fw_ddb_index;	/* DDB firmware index */
 	uint16_t options;
 	uint32_t fw_ddb_device_state; /* F/W Device State  -- see ql4_fw.h */
@@ -289,8 +289,6 @@ struct ddb_entry {
  * DDB flags.
  */
 #define DF_RELOGIN		0	/* Relogin to device */
-#define DF_NO_RELOGIN		1	/* Do not relogin if IOCTL
-					 * logged it out */
 #define DF_ISNS_DISCOVERED	2	/* Device was discovered via iSNS */
 #define DF_FO_MASKED		3
 
@@ -376,7 +374,7 @@ struct scsi_qla_host {
 #define AF_LINK_UP			8 /* 0x00000100 */
 #define AF_IRQ_ATTACHED			10 /* 0x00000400 */
 #define AF_DISABLE_ACB_COMPLETE		11 /* 0x00000800 */
-#define AF_HBA_GOING_AWAY		12 /* 0x00001000 */
+#define AF_HA_REMOVAL			12 /* 0x00001000 */
 #define AF_INTx_ENABLED			15 /* 0x00008000 */
 #define AF_MSI_ENABLED			16 /* 0x00010000 */
 #define AF_MSIX_ENABLED			17 /* 0x00020000 */
@@ -479,7 +477,6 @@ struct scsi_qla_host {
 	uint32_t timer_active;
 
 	/* Recovery Timers */
-	uint32_t discovery_wait;
 	atomic_t check_relogin_timeouts;
 	uint32_t retry_reset_ha_cnt;
 	uint32_t isp_reset_timer;	/* reset test timer */
@@ -765,6 +762,5 @@ static inline void ql4xxx_unlock_drvr(struct scsi_qla_host *a)
 /* Defines for process_aen() */
 #define PROCESS_ALL_AENS	 0
 #define FLUSH_DDB_CHANGED_AENS	 1
-#define RELOGIN_DDB_CHANGED_AENS 2
 
 #endif	/*_QLA4XXX_H */
diff --git a/drivers/scsi/qla4xxx/ql4_fw.h b/drivers/scsi/qla4xxx/ql4_fw.h
index c1985792f034..31e2bf97198c 100644
--- a/drivers/scsi/qla4xxx/ql4_fw.h
+++ b/drivers/scsi/qla4xxx/ql4_fw.h
@@ -455,6 +455,7 @@ struct addr_ctrl_blk {
 	uint8_t res0;	/* 07 */
 	uint16_t eth_mtu_size;	/* 08-09 */
 	uint16_t add_fw_options;	/* 0A-0B */
+#define SERIALIZE_TASK_MGMT		0x0400
 
 	uint8_t hb_interval;	/* 0C */
 	uint8_t inst_num; /* 0D */
diff --git a/drivers/scsi/qla4xxx/ql4_glbl.h b/drivers/scsi/qla4xxx/ql4_glbl.h
index 8fad99b7eef4..cc53e3fbd78c 100644
--- a/drivers/scsi/qla4xxx/ql4_glbl.h
+++ b/drivers/scsi/qla4xxx/ql4_glbl.h
@@ -136,7 +136,6 @@ void qla4_8xxx_clear_drv_active(struct scsi_qla_host *ha);
 void qla4_8xxx_set_drv_active(struct scsi_qla_host *ha);
 
 extern int ql4xextended_error_logging;
-extern int ql4xdiscoverywait;
 extern int ql4xdontresethba;
 extern int ql4xenablemsix;
 
diff --git a/drivers/scsi/qla4xxx/ql4_init.c b/drivers/scsi/qla4xxx/ql4_init.c
index 1629c48c35ef..48e2241ddaf4 100644
--- a/drivers/scsi/qla4xxx/ql4_init.c
+++ b/drivers/scsi/qla4xxx/ql4_init.c
@@ -723,13 +723,38 @@ int qla4_is_relogin_allowed(struct scsi_qla_host *ha, uint32_t conn_err)
 	return relogin;
 }
 
+static void qla4xxx_flush_AENS(struct scsi_qla_host *ha)
+{
+	unsigned long wtime;
+
+	/* Flush the 0x8014 AEN from the firmware as a result of
+	 * Auto connect. We are basically doing get_firmware_ddb()
+	 * to determine whether we need to log back in or not.
+	 * Trying to do a set ddb before we have processed 0x8014
+	 * will result in another set_ddb() for the same ddb. In other
+	 * words there will be stale entries in the aen_q.
+	 */
+	wtime = jiffies + (2 * HZ);
+	do {
+		if (qla4xxx_get_firmware_state(ha) == QLA_SUCCESS)
+			if (ha->firmware_state & (BIT_2 | BIT_0))
+				return;
+
+		if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags))
+			qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
+
+		msleep(1000);
+	} while (!time_after_eq(jiffies, wtime));
+}
+
 /**
- * qla4xxx_configure_ddbs - builds driver ddb list
+ * qla4xxx_build_ddb_list - builds driver ddb list
  * @ha: Pointer to host adapter structure.
  *
  * This routine searches for all valid firmware ddb entries and builds
  * an internal ddb list. Ddbs that are considered valid are those with
  * a device state of SESSION_ACTIVE.
+ * A relogin (set_ddb) is issued for DDBs that are not online.
  **/
 static int qla4xxx_build_ddb_list(struct scsi_qla_host *ha)
 {
@@ -744,6 +769,8 @@ static int qla4xxx_build_ddb_list(struct scsi_qla_host *ha)
 	uint32_t ipv6_device;
 	uint32_t new_tgt;
 
+	qla4xxx_flush_AENS(ha);
+
 	fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
 			&fw_ddb_entry_dma, GFP_KERNEL);
 	if (fw_ddb_entry == NULL) {
@@ -847,144 +874,6 @@ exit_build_ddb_list_no_free:
 	return status;
 }
 
-struct qla4_relog_scan {
-	int halt_wait;
-	uint32_t conn_err;
-	uint32_t fw_ddb_index;
-	uint32_t next_fw_ddb_index;
-	uint32_t fw_ddb_device_state;
-};
-
-static int qla4_test_rdy(struct scsi_qla_host *ha, struct qla4_relog_scan *rs)
-{
-	struct ddb_entry *ddb_entry;
-
-	if (qla4_is_relogin_allowed(ha, rs->conn_err)) {
-		/* We either have a device that is in
-		 * the process of relogging in or a
-		 * device that is waiting to be
-		 * relogged in */
-		rs->halt_wait = 0;
-
-		ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha,
-							   rs->fw_ddb_index);
-		if (ddb_entry == NULL)
-			return QLA_ERROR;
-
-		if (ddb_entry->dev_scan_wait_to_start_relogin != 0
-		    && time_after_eq(jiffies,
-				     ddb_entry->
-				     dev_scan_wait_to_start_relogin))
-		{
-			ddb_entry->dev_scan_wait_to_start_relogin = 0;
-			qla4xxx_set_ddb_entry(ha, rs->fw_ddb_index, 0);
-		}
-	}
-	return QLA_SUCCESS;
-}
-
-static int qla4_scan_for_relogin(struct scsi_qla_host *ha,
-				 struct qla4_relog_scan *rs)
-{
-	int error;
-
-	/* scan for relogins
-	 * ----------------- */
-	for (rs->fw_ddb_index = 0; rs->fw_ddb_index < MAX_DDB_ENTRIES;
-	     rs->fw_ddb_index = rs->next_fw_ddb_index) {
-		if (qla4xxx_get_fwddb_entry(ha, rs->fw_ddb_index, NULL, 0,
-					    NULL, &rs->next_fw_ddb_index,
-					    &rs->fw_ddb_device_state,
-					    &rs->conn_err, NULL, NULL)
-		    == QLA_ERROR)
-			return QLA_ERROR;
-
-		if (rs->fw_ddb_device_state == DDB_DS_LOGIN_IN_PROCESS)
-			rs->halt_wait = 0;
-
-		if (rs->fw_ddb_device_state == DDB_DS_SESSION_FAILED ||
-		    rs->fw_ddb_device_state == DDB_DS_NO_CONNECTION_ACTIVE) {
-			error = qla4_test_rdy(ha, rs);
-			if (error)
-				return error;
-		}
-
-		/* We know we've reached the last device when
-		 * next_fw_ddb_index is 0 */
-		if (rs->next_fw_ddb_index == 0)
-			break;
-	}
-	return QLA_SUCCESS;
-}
-
-/**
- * qla4xxx_devices_ready - wait for target devices to be logged in
- * @ha: pointer to adapter structure
- *
- * This routine waits up to ql4xdiscoverywait seconds
- * F/W database during driver load time.
- **/
-static int qla4xxx_devices_ready(struct scsi_qla_host *ha)
-{
-	int error;
-	unsigned long discovery_wtime;
-	struct qla4_relog_scan rs;
-
-	discovery_wtime = jiffies + (ql4xdiscoverywait * HZ);
-
-	DEBUG(printk("Waiting (%d) for devices ...\n", ql4xdiscoverywait));
-	do {
-		/* poll for AEN. */
-		qla4xxx_get_firmware_state(ha);
-		if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags)) {
-			/* Set time-between-relogin timer */
-			qla4xxx_process_aen(ha, RELOGIN_DDB_CHANGED_AENS);
-		}
-
-		/* if no relogins active or needed, halt discvery wait */
-		rs.halt_wait = 1;
-
-		error = qla4_scan_for_relogin(ha, &rs);
-
-		if (rs.halt_wait) {
-			DEBUG2(printk("scsi%ld: %s: Delay halted.  Devices "
-				      "Ready.\n", ha->host_no, __func__));
-			return QLA_SUCCESS;
-		}
-
-		msleep(2000);
-	} while (!time_after_eq(jiffies, discovery_wtime));
-
-	DEBUG3(qla4xxx_get_conn_event_log(ha));
-
-	return QLA_SUCCESS;
-}
-
-static void qla4xxx_flush_AENS(struct scsi_qla_host *ha)
-{
-	unsigned long wtime;
-
-	/* Flush the 0x8014 AEN from the firmware as a result of
-	 * Auto connect. We are basically doing get_firmware_ddb()
-	 * to determine whether we need to log back in or not.
-	 *  Trying to do a set ddb before we have processed 0x8014
-	 *  will result in another set_ddb() for the same ddb. In other
-	 *  words there will be stale entries in the aen_q.
-	 */
-	wtime = jiffies + (2 * HZ);
-	do {
-		if (qla4xxx_get_firmware_state(ha) == QLA_SUCCESS)
-			if (ha->firmware_state & (BIT_2 | BIT_0))
-				return;
-
-		if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags))
-			qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
-
-		msleep(1000);
-	} while (!time_after_eq(jiffies, wtime));
-
-}
-
 static int qla4xxx_initialize_ddb_list(struct scsi_qla_host *ha)
 {
 	uint16_t fw_ddb_index;
@@ -996,29 +885,12 @@ static int qla4xxx_initialize_ddb_list(struct scsi_qla_host *ha)
 
 	for (fw_ddb_index = 0; fw_ddb_index < MAX_DDB_ENTRIES; fw_ddb_index++)
 		ha->fw_ddb_index_map[fw_ddb_index] =
-			(struct ddb_entry *)INVALID_ENTRY;
+		    (struct ddb_entry *)INVALID_ENTRY;
 
 	ha->tot_ddbs = 0;
 
-	qla4xxx_flush_AENS(ha);
-
-	/* Wait for an AEN */
-	qla4xxx_devices_ready(ha);
-
-	/*
-	 * First perform device discovery for active
-	 * fw ddb indexes and build
-	 * ddb list.
-	 */
-	if ((status = qla4xxx_build_ddb_list(ha)) == QLA_ERROR)
-		return status;
-
-	/*
-	 * Targets can come online after the inital discovery, so processing
-	 * the aens here will catch them.
-	 */
-	if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags))
-		qla4xxx_process_aen(ha, PROCESS_ALL_AENS);
+	/* Perform device discovery and build ddb list. */
+	status = qla4xxx_build_ddb_list(ha);
 
 	return status;
 }
@@ -1466,7 +1338,7 @@ exit_init_hba:
 	}
 
 	DEBUG2(printk("scsi%ld: initialize adapter: %s\n", ha->host_no,
-	    status == QLA_ERROR ? "FAILED" : "SUCCEDED"));
+	    status == QLA_ERROR ? "FAILED" : "SUCCEEDED"));
 	return status;
 }
 
@@ -1537,7 +1409,6 @@ int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha, uint32_t fw_ddb_index,
 		uint32_t state, uint32_t conn_err)
 {
 	struct ddb_entry * ddb_entry;
-	uint32_t old_fw_ddb_device_state;
 
 	/* check for out of range index */
 	if (fw_ddb_index >= MAX_DDB_ENTRIES)
@@ -1553,27 +1424,18 @@ int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha, uint32_t fw_ddb_index,
 	}
 
 	/* Device already exists in our database. */
-	old_fw_ddb_device_state = ddb_entry->fw_ddb_device_state;
 	DEBUG2(printk("scsi%ld: %s DDB - old state= 0x%x, new state=0x%x for "
 		      "index [%d]\n", ha->host_no, __func__,
 		      ddb_entry->fw_ddb_device_state, state, fw_ddb_index));
-	if (old_fw_ddb_device_state == state &&
-	    state == DDB_DS_SESSION_ACTIVE) {
-		if (atomic_read(&ddb_entry->state) != DDB_STATE_ONLINE) {
-			atomic_set(&ddb_entry->state, DDB_STATE_ONLINE);
-			iscsi_unblock_session(ddb_entry->sess);
-		}
-		return QLA_SUCCESS;
-	}
 
 	ddb_entry->fw_ddb_device_state = state;
 	/* Device is back online. */
-	if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) {
+	if ((ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) &&
+	   (atomic_read(&ddb_entry->state) != DDB_STATE_ONLINE)) {
 		atomic_set(&ddb_entry->state, DDB_STATE_ONLINE);
 		atomic_set(&ddb_entry->relogin_retry_count, 0);
 		atomic_set(&ddb_entry->relogin_timer, 0);
 		clear_bit(DF_RELOGIN, &ddb_entry->flags);
-		clear_bit(DF_NO_RELOGIN, &ddb_entry->flags);
 		iscsi_unblock_session(ddb_entry->sess);
 		iscsi_session_event(ddb_entry->sess,
 				    ISCSI_KEVENT_CREATE_SESSION);
@@ -1581,7 +1443,7 @@ int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha, uint32_t fw_ddb_index,
 		 * Change the lun state to READY in case the lun TIMEOUT before
 		 * the device came back.
 		 */
-	} else {
+	} else if (ddb_entry->fw_ddb_device_state != DDB_DS_SESSION_ACTIVE) {
 		/* Device went away, mark device missing */
 		if (atomic_read(&ddb_entry->state) == DDB_STATE_ONLINE) {
 			DEBUG2(ql4_printk(KERN_INFO, ha, "%s mark missing "
@@ -1598,7 +1460,6 @@ int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha, uint32_t fw_ddb_index,
 		 */
 		if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_FAILED &&
 		    !test_bit(DF_RELOGIN, &ddb_entry->flags) &&
-		    !test_bit(DF_NO_RELOGIN, &ddb_entry->flags) &&
 		    qla4_is_relogin_allowed(ha, conn_err)) {
 			/*
 			 * This triggers a relogin.  After the relogin_timer
diff --git a/drivers/scsi/qla4xxx/ql4_isr.c b/drivers/scsi/qla4xxx/ql4_isr.c
index 03e028e6e809..2f40ac761cd4 100644
--- a/drivers/scsi/qla4xxx/ql4_isr.c
+++ b/drivers/scsi/qla4xxx/ql4_isr.c
@@ -801,7 +801,7 @@ irqreturn_t qla4xxx_intr_handler(int irq, void *dev_id)
 			       &ha->reg->ctrl_status);
 			readl(&ha->reg->ctrl_status);
 
-			if (!test_bit(AF_HBA_GOING_AWAY, &ha->flags))
+			if (!test_bit(AF_HA_REMOVAL, &ha->flags))
 				set_bit(DPC_RESET_HA_INTR, &ha->dpc_flags);
 
 			break;
@@ -1008,34 +1008,9 @@ void qla4xxx_process_aen(struct scsi_qla_host * ha, uint8_t process_aen)
 					      mbox_sts[0], mbox_sts[2],
 					      mbox_sts[3]));
 				break;
-			} else if (process_aen == RELOGIN_DDB_CHANGED_AENS) {
-				/* for use during init time, we only want to
-				 * relogin non-active ddbs */
-				struct ddb_entry *ddb_entry;
-
-				ddb_entry =
-					/* FIXME: name length? */
-					qla4xxx_lookup_ddb_by_fw_index(ha,
-								       mbox_sts[2]);
-				if (!ddb_entry)
-					break;
-
-				ddb_entry->dev_scan_wait_to_complete_relogin =
-					0;
-				ddb_entry->dev_scan_wait_to_start_relogin =
-					jiffies +
-					((ddb_entry->default_time2wait +
-					  4) * HZ);
-
-				DEBUG2(printk("scsi%ld: ddb [%d] initiate"
-					      " RELOGIN after %d seconds\n",
-					      ha->host_no,
-					      ddb_entry->fw_ddb_index,
-					      ddb_entry->default_time2wait +
-					      4));
-				break;
 			}
-
+		case PROCESS_ALL_AENS:
+		default:
 			if (mbox_sts[1] == 0) {	/* Global DB change. */
 				qla4xxx_reinitialize_ddb_list(ha);
 			} else if (mbox_sts[1] == 1) {	/* Specific device. */
diff --git a/drivers/scsi/qla4xxx/ql4_mbx.c b/drivers/scsi/qla4xxx/ql4_mbx.c
index f65626aec7c1..f9d81c8372c3 100644
--- a/drivers/scsi/qla4xxx/ql4_mbx.c
+++ b/drivers/scsi/qla4xxx/ql4_mbx.c
@@ -32,6 +32,7 @@ int qla4xxx_mailbox_command(struct scsi_qla_host *ha, uint8_t inCount,
 	u_long wait_count;
 	uint32_t intr_status;
 	unsigned long flags = 0;
+	uint32_t dev_state;
 
 	/* Make sure that pointers are valid */
 	if (!mbx_cmd || !mbx_sts) {
@@ -40,12 +41,23 @@ int qla4xxx_mailbox_command(struct scsi_qla_host *ha, uint8_t inCount,
 		return status;
 	}
 
-	if (is_qla8022(ha) &&
-	    test_bit(AF_FW_RECOVERY, &ha->flags)) {
-		DEBUG2(ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: prematurely "
-		    "completing mbx cmd as firmware recovery detected\n",
-		    ha->host_no, __func__));
-		return status;
+	if (is_qla8022(ha)) {
+		if (test_bit(AF_FW_RECOVERY, &ha->flags)) {
+			DEBUG2(ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: "
+			    "prematurely completing mbx cmd as firmware "
+			    "recovery detected\n", ha->host_no, __func__));
+			return status;
+		}
+		/* Do not send any mbx cmd if h/w is in failed state*/
+		qla4_8xxx_idc_lock(ha);
+		dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
+		qla4_8xxx_idc_unlock(ha);
+		if (dev_state == QLA82XX_DEV_FAILED) {
+			ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: H/W is in "
+			    "failed state, do not send any mailbox commands\n",
+			    ha->host_no, __func__);
+			return status;
+		}
 	}
 
 	if ((is_aer_supported(ha)) &&
@@ -139,7 +151,7 @@ int qla4xxx_mailbox_command(struct scsi_qla_host *ha, uint8_t inCount,
 	if (test_bit(AF_IRQ_ATTACHED, &ha->flags) &&
 	    test_bit(AF_INTERRUPTS_ON, &ha->flags) &&
 	    test_bit(AF_ONLINE, &ha->flags) &&
-	    !test_bit(AF_HBA_GOING_AWAY, &ha->flags)) {
+	    !test_bit(AF_HA_REMOVAL, &ha->flags)) {
 		/* Do not poll for completion. Use completion queue */
 		set_bit(AF_MBOX_COMMAND_NOPOLL, &ha->flags);
 		wait_for_completion_timeout(&ha->mbx_intr_comp, MBOX_TOV * HZ);
@@ -395,9 +407,6 @@ qla4xxx_update_local_ifcb(struct scsi_qla_host *ha,
 	/*memcpy(ha->alias, init_fw_cb->Alias,
 	       min(sizeof(ha->alias), sizeof(init_fw_cb->Alias)));*/
 
-	/* Save Command Line Paramater info */
-	ha->discovery_wait = ql4xdiscoverywait;
-
 	if (ha->acb_version == ACB_SUPPORTED) {
 		ha->ipv6_options = init_fw_cb->ipv6_opts;
 		ha->ipv6_addl_options = init_fw_cb->ipv6_addtl_opts;
@@ -467,6 +476,11 @@ int qla4xxx_initialize_fw_cb(struct scsi_qla_host * ha)
 
 	init_fw_cb->fw_options &= __constant_cpu_to_le16(~FWOPT_TARGET_MODE);
 
+	/* Set bit for "serialize task mgmt" all other bits need to be zero */
+	init_fw_cb->add_fw_options = 0;
+	init_fw_cb->add_fw_options |=
+	    __constant_cpu_to_le16(SERIALIZE_TASK_MGMT);
+
 	if (qla4xxx_set_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma)
 		!= QLA_SUCCESS) {
 		DEBUG2(printk(KERN_WARNING
diff --git a/drivers/scsi/qla4xxx/ql4_nvram.h b/drivers/scsi/qla4xxx/ql4_nvram.h
index b3831bd29479..945cc328f57f 100644
--- a/drivers/scsi/qla4xxx/ql4_nvram.h
+++ b/drivers/scsi/qla4xxx/ql4_nvram.h
@@ -28,7 +28,7 @@
 #define	 FM93C56A_ERASE	      0x3
 #define	 FM93C56A_ERASE_ALL   0x0
 
-/* Command Extentions */
+/* Command Extensions */
 #define	 FM93C56A_WEN_EXT	 0x3
 #define	 FM93C56A_WRITE_ALL_EXT	 0x1
 #define	 FM93C56A_WDS_EXT	 0x0
diff --git a/drivers/scsi/qla4xxx/ql4_nx.c b/drivers/scsi/qla4xxx/ql4_nx.c
index 3d5ef2df4134..35381cb0936e 100644
--- a/drivers/scsi/qla4xxx/ql4_nx.c
+++ b/drivers/scsi/qla4xxx/ql4_nx.c
@@ -2304,14 +2304,13 @@ qla4_8xxx_enable_intrs(struct scsi_qla_host *ha)
 void
 qla4_8xxx_disable_intrs(struct scsi_qla_host *ha)
 {
-	if (test_bit(AF_INTERRUPTS_ON, &ha->flags))
+	if (test_and_clear_bit(AF_INTERRUPTS_ON, &ha->flags))
 		qla4_8xxx_mbx_intr_disable(ha);
 
 	spin_lock_irq(&ha->hardware_lock);
 	/* BIT 10 - set */
 	qla4_8xxx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0x0400);
 	spin_unlock_irq(&ha->hardware_lock);
-	clear_bit(AF_INTERRUPTS_ON, &ha->flags);
 }
 
 struct ql4_init_msix_entry {
diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
index 967836ef5ab2..230ba097d28c 100644
--- a/drivers/scsi/qla4xxx/ql4_os.c
+++ b/drivers/scsi/qla4xxx/ql4_os.c
@@ -29,10 +29,6 @@ static struct kmem_cache *srb_cachep;
 /*
  * Module parameter information and variables
  */
-int ql4xdiscoverywait = 60;
-module_param(ql4xdiscoverywait, int, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(ql4xdiscoverywait, "Discovery wait time");
-
 int ql4xdontresethba = 0;
 module_param(ql4xdontresethba, int, S_IRUGO | S_IWUSR);
 MODULE_PARM_DESC(ql4xdontresethba,
@@ -55,6 +51,17 @@ MODULE_PARM_DESC(ql4xenablemsix,
 		" 2 = enable MSI interrupt mechanism.");
 
 #define QL4_DEF_QDEPTH 32
+static int ql4xmaxqdepth = QL4_DEF_QDEPTH;
+module_param(ql4xmaxqdepth, int, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(ql4xmaxqdepth,
+		"Maximum queue depth to report for target devices.\n"
+		" Default: 32.");
+
+static int ql4xsess_recovery_tmo = QL4_SESS_RECOVERY_TMO;
+module_param(ql4xsess_recovery_tmo, int, S_IRUGO);
+MODULE_PARM_DESC(ql4xsess_recovery_tmo,
+		"Target Session Recovery Timeout.\n"
+		" Default: 30 sec.");
 
 /*
  * SCSI host template entry points
@@ -165,7 +172,7 @@ static void qla4xxx_recovery_timedout(struct iscsi_cls_session *session)
 		DEBUG2(printk("scsi%ld: %s: ddb [%d] session recovery timeout "
 			      "of (%d) secs exhausted, marking device DEAD.\n",
 			      ha->host_no, __func__, ddb_entry->fw_ddb_index,
-			      QL4_SESS_RECOVERY_TMO));
+			      ddb_entry->sess->recovery_tmo));
 	}
 }
 
@@ -295,7 +302,7 @@ int qla4xxx_add_sess(struct ddb_entry *ddb_entry)
 {
 	int err;
 
-	ddb_entry->sess->recovery_tmo = QL4_SESS_RECOVERY_TMO;
+	ddb_entry->sess->recovery_tmo = ql4xsess_recovery_tmo;
 
 	err = iscsi_add_session(ddb_entry->sess, ddb_entry->fw_ddb_index);
 	if (err) {
@@ -753,12 +760,6 @@ static void qla4xxx_timer(struct scsi_qla_host *ha)
 	if (!pci_channel_offline(ha->pdev))
 		pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w);
 
-	if (test_bit(AF_HBA_GOING_AWAY, &ha->flags)) {
-		DEBUG2(ql4_printk(KERN_INFO, ha, "%s exited. HBA GOING AWAY\n",
-		    __func__));
-		return;
-	}
-
 	if (is_qla8022(ha)) {
 		qla4_8xxx_watchdog(ha);
 	}
@@ -1067,7 +1068,6 @@ void qla4xxx_dead_adapter_cleanup(struct scsi_qla_host *ha)
 
 	/* Disable the board */
 	ql4_printk(KERN_INFO, ha, "Disabling the board\n");
-	set_bit(AF_HBA_GOING_AWAY, &ha->flags);
 
 	qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16);
 	qla4xxx_mark_all_devices_missing(ha);
@@ -1213,11 +1213,32 @@ recover_ha_init_adapter:
 
 	clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
 	DEBUG2(printk("scsi%ld: recover adapter: %s\n", ha->host_no,
-	    status == QLA_ERROR ? "FAILED" : "SUCCEDED"));
+	    status == QLA_ERROR ? "FAILED" : "SUCCEEDED"));
 
 	return status;
 }
 
+static void qla4xxx_relogin_all_devices(struct scsi_qla_host *ha)
+{
+	struct ddb_entry *ddb_entry, *dtemp;
+
+	list_for_each_entry_safe(ddb_entry, dtemp, &ha->ddb_list, list) {
+		if ((atomic_read(&ddb_entry->state) == DDB_STATE_MISSING) ||
+		    (atomic_read(&ddb_entry->state) == DDB_STATE_DEAD)) {
+			if (ddb_entry->fw_ddb_device_state ==
+			    DDB_DS_SESSION_ACTIVE) {
+				atomic_set(&ddb_entry->state, DDB_STATE_ONLINE);
+				ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
+				    " marked ONLINE\n",	ha->host_no, __func__,
+				    ddb_entry->fw_ddb_index);
+
+				iscsi_unblock_session(ddb_entry->sess);
+			} else
+				qla4xxx_relogin_device(ha, ddb_entry);
+		}
+	}
+}
+
 void qla4xxx_wake_dpc(struct scsi_qla_host *ha)
 {
 	if (ha->dpc_thread &&
@@ -1259,11 +1280,6 @@ static void qla4xxx_do_dpc(struct work_struct *work)
 		goto do_dpc_exit;
 	}
 
-	/* HBA is in the process of being permanently disabled.
-	 * Don't process anything */
-	if (test_bit(AF_HBA_GOING_AWAY, &ha->flags))
-		return;
-
 	if (is_qla8022(ha)) {
 		if (test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags)) {
 			qla4_8xxx_idc_lock(ha);
@@ -1331,13 +1347,7 @@ dpc_post_reset_ha:
 	if (test_and_clear_bit(DPC_LINK_CHANGED, &ha->dpc_flags)) {
 		if (!test_bit(AF_LINK_UP, &ha->flags)) {
 			/* ---- link down? --- */
-			list_for_each_entry_safe(ddb_entry, dtemp,
-						 &ha->ddb_list, list) {
-				if (atomic_read(&ddb_entry->state) ==
-						DDB_STATE_ONLINE)
-					qla4xxx_mark_device_missing(ha,
-							ddb_entry);
-			}
+			qla4xxx_mark_all_devices_missing(ha);
 		} else {
 			/* ---- link up? --- *
 			 * F/W will auto login to all devices ONLY ONCE after
@@ -1346,30 +1356,7 @@ dpc_post_reset_ha:
 			 * manually relogin to devices when recovering from
 			 * connection failures, logouts, expired KATO, etc. */
 
-			list_for_each_entry_safe(ddb_entry, dtemp,
-							&ha->ddb_list, list) {
-				if ((atomic_read(&ddb_entry->state) ==
-						 DDB_STATE_MISSING) ||
-				    (atomic_read(&ddb_entry->state) ==
-						 DDB_STATE_DEAD)) {
-					if (ddb_entry->fw_ddb_device_state ==
-					    DDB_DS_SESSION_ACTIVE) {
-						atomic_set(&ddb_entry->state,
-							   DDB_STATE_ONLINE);
-						ql4_printk(KERN_INFO, ha,
-						    "scsi%ld: %s: ddb[%d]"
-						    " marked ONLINE\n",
-						    ha->host_no, __func__,
-						    ddb_entry->fw_ddb_index);
-
-						iscsi_unblock_session(
-						    ddb_entry->sess);
-					} else
-						qla4xxx_relogin_device(
-						    ha, ddb_entry);
-				}
-
-			}
+			qla4xxx_relogin_all_devices(ha);
 		}
 	}
 
@@ -1630,6 +1617,7 @@ static int __devinit qla4xxx_probe_adapter(struct pci_dev *pdev,
 	uint8_t init_retry_count = 0;
 	char buf[34];
 	struct qla4_8xxx_legacy_intr_set *nx_legacy_intr;
+	uint32_t dev_state;
 
 	if (pci_enable_device(pdev))
 		return -1;
@@ -1713,6 +1701,18 @@ static int __devinit qla4xxx_probe_adapter(struct pci_dev *pdev,
 	status = qla4xxx_initialize_adapter(ha, REBUILD_DDB_LIST);
 	while ((!test_bit(AF_ONLINE, &ha->flags)) &&
 	    init_retry_count++ < MAX_INIT_RETRIES) {
+
+		if (is_qla8022(ha)) {
+			qla4_8xxx_idc_lock(ha);
+			dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
+			qla4_8xxx_idc_unlock(ha);
+			if (dev_state == QLA82XX_DEV_FAILED) {
+				ql4_printk(KERN_WARNING, ha, "%s: don't retry "
+				    "initialize adapter. H/W is in failed state\n",
+				    __func__);
+				break;
+			}
+		}
 		DEBUG2(printk("scsi: %s: retrying adapter initialization "
 			      "(%d)\n", __func__, init_retry_count));
 
@@ -1815,6 +1815,44 @@ probe_disable_device:
 }
 
 /**
+ * qla4xxx_prevent_other_port_reinit - prevent other port from re-initialize
+ * @ha: pointer to adapter structure
+ *
+ * Mark the other ISP-4xxx port to indicate that the driver is being removed,
+ * so that the other port will not re-initialize while in the process of
+ * removing the ha due to driver unload or hba hotplug.
+ **/
+static void qla4xxx_prevent_other_port_reinit(struct scsi_qla_host *ha)
+{
+	struct scsi_qla_host *other_ha = NULL;
+	struct pci_dev *other_pdev = NULL;
+	int fn = ISP4XXX_PCI_FN_2;
+
+	/*iscsi function numbers for ISP4xxx is 1 and 3*/
+	if (PCI_FUNC(ha->pdev->devfn) & BIT_1)
+		fn = ISP4XXX_PCI_FN_1;
+
+	other_pdev =
+		pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus),
+		ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn),
+		fn));
+
+	/* Get other_ha if other_pdev is valid and state is enable*/
+	if (other_pdev) {
+		if (atomic_read(&other_pdev->enable_cnt)) {
+			other_ha = pci_get_drvdata(other_pdev);
+			if (other_ha) {
+				set_bit(AF_HA_REMOVAL, &other_ha->flags);
+				DEBUG2(ql4_printk(KERN_INFO, ha, "%s: "
+				    "Prevent %s reinit\n", __func__,
+				    dev_name(&other_ha->pdev->dev)));
+			}
+		}
+		pci_dev_put(other_pdev);
+	}
+}
+
+/**
  * qla4xxx_remove_adapter - calback function to remove adapter.
  * @pci_dev: PCI device pointer
  **/
@@ -1824,7 +1862,8 @@ static void __devexit qla4xxx_remove_adapter(struct pci_dev *pdev)
 
 	ha = pci_get_drvdata(pdev);
 
-	set_bit(AF_HBA_GOING_AWAY, &ha->flags);
+	if (!is_qla8022(ha))
+		qla4xxx_prevent_other_port_reinit(ha);
 
 	/* remove devs from iscsi_sessions to scsi_devices */
 	qla4xxx_free_ddb_list(ha);
@@ -1868,10 +1907,15 @@ static int qla4xxx_slave_alloc(struct scsi_device *sdev)
 {
 	struct iscsi_cls_session *sess = starget_to_session(sdev->sdev_target);
 	struct ddb_entry *ddb = sess->dd_data;
+	int queue_depth = QL4_DEF_QDEPTH;
 
 	sdev->hostdata = ddb;
 	sdev->tagged_supported = 1;
-	scsi_activate_tcq(sdev, QL4_DEF_QDEPTH);
+
+	if (ql4xmaxqdepth != 0 && ql4xmaxqdepth <= 0xffffU)
+		queue_depth = ql4xmaxqdepth;
+
+	scsi_activate_tcq(sdev, queue_depth);
 	return 0;
 }
 
@@ -2066,7 +2110,7 @@ static int qla4xxx_eh_abort(struct scsi_cmnd *cmd)
 
 	ql4_printk(KERN_INFO, ha,
 	    "scsi%ld:%d:%d: Abort command - %s\n",
-	    ha->host_no, id, lun, (ret == SUCCESS) ? "succeded" : "failed");
+	    ha->host_no, id, lun, (ret == SUCCESS) ? "succeeded" : "failed");
 
 	return ret;
 }
@@ -2234,7 +2278,7 @@ static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd)
 		return_status = SUCCESS;
 
 	ql4_printk(KERN_INFO, ha, "HOST RESET %s.\n",
-		   return_status == FAILED ? "FAILED" : "SUCCEDED");
+		   return_status == FAILED ? "FAILED" : "SUCCEEDED");
 
 	return return_status;
 }
@@ -2448,7 +2492,7 @@ qla4xxx_pci_slot_reset(struct pci_dev *pdev)
 	/* Initialize device or resume if in suspended state */
 	rc = pci_enable_device(pdev);
 	if (rc) {
-		ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Cant re-enable "
+		ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Can't re-enable "
 		    "device after reset\n", ha->host_no, __func__);
 		goto exit_slot_reset;
 	}
diff --git a/drivers/scsi/qla4xxx/ql4_version.h b/drivers/scsi/qla4xxx/ql4_version.h
index 8475b308e01b..603155769407 100644
--- a/drivers/scsi/qla4xxx/ql4_version.h
+++ b/drivers/scsi/qla4xxx/ql4_version.h
@@ -5,4 +5,4 @@
  * See LICENSE.qla4xxx for copyright and licensing details.
  */
 
-#define QLA4XXX_DRIVER_VERSION	"5.02.00-k5"
+#define QLA4XXX_DRIVER_VERSION	"5.02.00-k6"
diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c
index fa5758cbdedb..6888b2ca5bfc 100644
--- a/drivers/scsi/scsi_debug.c
+++ b/drivers/scsi/scsi_debug.c
@@ -2454,7 +2454,7 @@ static void scsi_debug_slave_destroy(struct scsi_device *sdp)
 		printk(KERN_INFO "scsi_debug: slave_destroy <%u %u %u %u>\n",
 		       sdp->host->host_no, sdp->channel, sdp->id, sdp->lun);
 	if (devip) {
-		/* make this slot avaliable for re-use */
+		/* make this slot available for re-use */
 		devip->used = 0;
 		sdp->hostdata = NULL;
 	}
diff --git a/drivers/scsi/scsi_netlink.c b/drivers/scsi/scsi_netlink.c
index a2ed201885ae..26a8a45584ef 100644
--- a/drivers/scsi/scsi_netlink.c
+++ b/drivers/scsi/scsi_netlink.c
@@ -499,7 +499,7 @@ scsi_netlink_init(void)
 				SCSI_NL_GRP_CNT, scsi_nl_rcv_msg, NULL,
 				THIS_MODULE);
 	if (!scsi_nl_sock) {
-		printk(KERN_ERR "%s: register of recieve handler failed\n",
+		printk(KERN_ERR "%s: register of receive handler failed\n",
 				__func__);
 		netlink_unregister_notifier(&scsi_netlink_notifier);
 		return;
diff --git a/drivers/scsi/scsi_tgt_lib.c b/drivers/scsi/scsi_tgt_lib.c
index f67282058ba1..8bca8c25ba69 100644
--- a/drivers/scsi/scsi_tgt_lib.c
+++ b/drivers/scsi/scsi_tgt_lib.c
@@ -93,7 +93,7 @@ struct scsi_cmnd *scsi_host_get_command(struct Scsi_Host *shost,
 
 	/*
 	 * The blk helpers are used to the READ/WRITE requests
-	 * transfering data from a initiator point of view. Since
+	 * transferring data from a initiator point of view. Since
 	 * we are in target mode we want the opposite.
 	 */
 	rq = blk_get_request(shost->uspace_req_q, !write, gfp_mask);
diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c
index 2941d2d92c94..fdf3fa639056 100644
--- a/drivers/scsi/scsi_transport_fc.c
+++ b/drivers/scsi/scsi_transport_fc.c
@@ -2378,7 +2378,7 @@ fc_flush_devloss(struct Scsi_Host *shost)
  * fc_remove_host - called to terminate any fc_transport-related elements for a scsi host.
  * @shost:	Which &Scsi_Host
  *
- * This routine is expected to be called immediately preceeding the
+ * This routine is expected to be called immediately preceding the
  * a driver's call to scsi_remove_host().
  *
  * WARNING: A driver utilizing the fc_transport, which fails to call
@@ -2458,7 +2458,7 @@ static void fc_terminate_rport_io(struct fc_rport *rport)
 }
 
 /**
- * fc_starget_delete - called to delete the scsi decendents of an rport
+ * fc_starget_delete - called to delete the scsi descendants of an rport
  * @work:	remote port to be operated on.
  *
  * Deletes target and all sdevs.
diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c
index b4218390941e..3fd16d7212de 100644
--- a/drivers/scsi/scsi_transport_iscsi.c
+++ b/drivers/scsi/scsi_transport_iscsi.c
@@ -1917,7 +1917,7 @@ store_priv_session_##field(struct device *dev,				\
 #define iscsi_priv_session_rw_attr(field, format)			\
 	iscsi_priv_session_attr_show(field, format)			\
 	iscsi_priv_session_attr_store(field)				\
-static ISCSI_CLASS_ATTR(priv_sess, field, S_IRUGO | S_IWUGO,		\
+static ISCSI_CLASS_ATTR(priv_sess, field, S_IRUGO | S_IWUSR,		\
 			show_priv_session_##field,			\
 			store_priv_session_##field)
 iscsi_priv_session_rw_attr(recovery_tmo, "%d");
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index 7ff61d76b4c5..bd0806e64e85 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -1055,7 +1055,7 @@ static int sd_getgeo(struct block_device *bdev, struct hd_geometry *geo)
  *	@arg: this is third argument given to ioctl(2) system call.
  *	Often contains a pointer.
  *
- *	Returns 0 if successful (some ioctls return postive numbers on
+ *	Returns 0 if successful (some ioctls return positive numbers on
  *	success as well). Returns a negated errno value in case of error.
  *
  *	Note: most ioctls are forward onto the block subsystem or further
@@ -2027,14 +2027,10 @@ sd_read_cache_type(struct scsi_disk *sdkp, unsigned char *buffer)
 	int old_rcd = sdkp->RCD;
 	int old_dpofua = sdkp->DPOFUA;
 
-	if (sdp->skip_ms_page_8) {
-		if (sdp->type == TYPE_RBC)
-			goto defaults;
-		else {
-			modepage = 0x3F;
-			dbd = 0;
-		}
-	} else if (sdp->type == TYPE_RBC) {
+	if (sdp->skip_ms_page_8)
+		goto defaults;
+
+	if (sdp->type == TYPE_RBC) {
 		modepage = 6;
 		dbd = 8;
 	} else {
@@ -2062,11 +2058,13 @@ sd_read_cache_type(struct scsi_disk *sdkp, unsigned char *buffer)
 	 */
 	if (len < 3)
 		goto bad_sense;
-	else if (len > SD_BUF_SIZE) {
-		sd_printk(KERN_NOTICE, sdkp, "Truncating mode parameter "
-			  "data from %d to %d bytes\n", len, SD_BUF_SIZE);
-		len = SD_BUF_SIZE;
-	}
+	if (len > 20)
+		len = 20;
+
+	/* Take headers and block descriptors into account */
+	len += data.header_length + data.block_descriptor_length;
+	if (len > SD_BUF_SIZE)
+		goto bad_sense;
 
 	/* Get the data */
 	res = sd_do_mode_sense(sdp, dbd, modepage, buffer, len, &data, &sshdr);
@@ -2074,45 +2072,16 @@ sd_read_cache_type(struct scsi_disk *sdkp, unsigned char *buffer)
 	if (scsi_status_is_good(res)) {
 		int offset = data.header_length + data.block_descriptor_length;
 
-		while (offset < len) {
-			u8 page_code = buffer[offset] & 0x3F;
-			u8 spf       = buffer[offset] & 0x40;
-
-			if (page_code == 8 || page_code == 6) {
-				/* We're interested only in the first 3 bytes.
-				 */
-				if (len - offset <= 2) {
-					sd_printk(KERN_ERR, sdkp, "Incomplete "
-						  "mode parameter data\n");
-					goto defaults;
-				} else {
-					modepage = page_code;
-					goto Page_found;
-				}
-			} else {
-				/* Go to the next page */
-				if (spf && len - offset > 3)
-					offset += 4 + (buffer[offset+2] << 8) +
-						buffer[offset+3];
-				else if (!spf && len - offset > 1)
-					offset += 2 + buffer[offset+1];
-				else {
-					sd_printk(KERN_ERR, sdkp, "Incomplete "
-						  "mode parameter data\n");
-					goto defaults;
-				}
-			}
+		if (offset >= SD_BUF_SIZE - 2) {
+			sd_printk(KERN_ERR, sdkp, "Malformed MODE SENSE response\n");
+			goto defaults;
 		}
 
-		if (modepage == 0x3F) {
-			sd_printk(KERN_ERR, sdkp, "No Caching mode page "
-				  "present\n");
-			goto defaults;
-		} else if ((buffer[offset] & 0x3f) != modepage) {
+		if ((buffer[offset] & 0x3f) != modepage) {
 			sd_printk(KERN_ERR, sdkp, "Got wrong page\n");
 			goto defaults;
 		}
-	Page_found:
+
 		if (modepage == 8) {
 			sdkp->WCE = ((buffer[offset + 2] & 0x04) != 0);
 			sdkp->RCD = ((buffer[offset + 2] & 0x01) != 0);
diff --git a/drivers/scsi/ses.c b/drivers/scsi/ses.c
index 7f5a6a86f820..eb7a3e85304f 100644
--- a/drivers/scsi/ses.c
+++ b/drivers/scsi/ses.c
@@ -35,9 +35,11 @@
 
 struct ses_device {
 	unsigned char *page1;
+	unsigned char *page1_types;
 	unsigned char *page2;
 	unsigned char *page10;
 	short page1_len;
+	short page1_num_types;
 	short page2_len;
 	short page10_len;
 };
@@ -110,12 +112,12 @@ static int ses_set_page2_descriptor(struct enclosure_device *edev,
 	int i, j, count = 0, descriptor = ecomp->number;
 	struct scsi_device *sdev = to_scsi_device(edev->edev.parent);
 	struct ses_device *ses_dev = edev->scratch;
-	unsigned char *type_ptr = ses_dev->page1 + 12 + ses_dev->page1[11];
+	unsigned char *type_ptr = ses_dev->page1_types;
 	unsigned char *desc_ptr = ses_dev->page2 + 8;
 
 	/* Clear everything */
 	memset(desc_ptr, 0, ses_dev->page2_len - 8);
-	for (i = 0; i < ses_dev->page1[10]; i++, type_ptr += 4) {
+	for (i = 0; i < ses_dev->page1_num_types; i++, type_ptr += 4) {
 		for (j = 0; j < type_ptr[1]; j++) {
 			desc_ptr += 4;
 			if (type_ptr[0] != ENCLOSURE_COMPONENT_DEVICE &&
@@ -140,12 +142,12 @@ static unsigned char *ses_get_page2_descriptor(struct enclosure_device *edev,
 	int i, j, count = 0, descriptor = ecomp->number;
 	struct scsi_device *sdev = to_scsi_device(edev->edev.parent);
 	struct ses_device *ses_dev = edev->scratch;
-	unsigned char *type_ptr = ses_dev->page1 + 12 + ses_dev->page1[11];
+	unsigned char *type_ptr = ses_dev->page1_types;
 	unsigned char *desc_ptr = ses_dev->page2 + 8;
 
 	ses_recv_diag(sdev, 2, ses_dev->page2, ses_dev->page2_len);
 
-	for (i = 0; i < ses_dev->page1[10]; i++, type_ptr += 4) {
+	for (i = 0; i < ses_dev->page1_num_types; i++, type_ptr += 4) {
 		for (j = 0; j < type_ptr[1]; j++) {
 			desc_ptr += 4;
 			if (type_ptr[0] != ENCLOSURE_COMPONENT_DEVICE &&
@@ -358,7 +360,7 @@ static void ses_enclosure_data_process(struct enclosure_device *edev,
 	unsigned char *buf = NULL, *type_ptr, *desc_ptr, *addl_desc_ptr = NULL;
 	int i, j, page7_len, len, components;
 	struct ses_device *ses_dev = edev->scratch;
-	int types = ses_dev->page1[10];
+	int types = ses_dev->page1_num_types;
 	unsigned char *hdr_buf = kzalloc(INIT_ALLOC_SIZE, GFP_KERNEL);
 
 	if (!hdr_buf)
@@ -390,10 +392,10 @@ static void ses_enclosure_data_process(struct enclosure_device *edev,
 		len = (desc_ptr[2] << 8) + desc_ptr[3];
 		/* skip past overall descriptor */
 		desc_ptr += len + 4;
-		if (ses_dev->page10)
-			addl_desc_ptr = ses_dev->page10 + 8;
 	}
-	type_ptr = ses_dev->page1 + 12 + ses_dev->page1[11];
+	if (ses_dev->page10)
+		addl_desc_ptr = ses_dev->page10 + 8;
+	type_ptr = ses_dev->page1_types;
 	components = 0;
 	for (i = 0; i < types; i++, type_ptr += 4) {
 		for (j = 0; j < type_ptr[1]; j++) {
@@ -503,6 +505,7 @@ static int ses_intf_add(struct device *cdev,
 	u32 result;
 	int i, types, len, components = 0;
 	int err = -ENOMEM;
+	int num_enclosures;
 	struct enclosure_device *edev;
 	struct ses_component *scomp = NULL;
 
@@ -530,16 +533,6 @@ static int ses_intf_add(struct device *cdev,
 	if (result)
 		goto recv_failed;
 
-	if (hdr_buf[1] != 0) {
-		/* FIXME: need subenclosure support; I've just never
-		 * seen a device with subenclosures and it makes the
-		 * traversal routines more complex */
-		sdev_printk(KERN_ERR, sdev,
-			"FIXME driver has no support for subenclosures (%d)\n",
-			hdr_buf[1]);
-		goto err_free;
-	}
-
 	len = (hdr_buf[2] << 8) + hdr_buf[3] + 4;
 	buf = kzalloc(len, GFP_KERNEL);
 	if (!buf)
@@ -549,11 +542,24 @@ static int ses_intf_add(struct device *cdev,
 	if (result)
 		goto recv_failed;
 
-	types = buf[10];
+	types = 0;
 
-	type_ptr = buf + 12 + buf[11];
+	/* we always have one main enclosure and the rest are referred
+	 * to as secondary subenclosures */
+	num_enclosures = buf[1] + 1;
 
-	for (i = 0; i < types; i++, type_ptr += 4) {
+	/* begin at the enclosure descriptor */
+	type_ptr = buf + 8;
+	/* skip all the enclosure descriptors */
+	for (i = 0; i < num_enclosures && type_ptr < buf + len; i++) {
+		types += type_ptr[2];
+		type_ptr += type_ptr[3] + 4;
+	}
+
+	ses_dev->page1_types = type_ptr;
+	ses_dev->page1_num_types = types;
+
+	for (i = 0; i < types && type_ptr < buf + len; i++, type_ptr += 4) {
 		if (type_ptr[0] == ENCLOSURE_COMPONENT_DEVICE ||
 		    type_ptr[0] == ENCLOSURE_COMPONENT_ARRAY_DEVICE)
 			components += type_ptr[1];
diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c
index aefadc6a1607..95019c747cc1 100644
--- a/drivers/scsi/sr.c
+++ b/drivers/scsi/sr.c
@@ -567,7 +567,7 @@ static const struct block_device_operations sr_bdops =
 	.revalidate_disk = sr_block_revalidate_disk,
 	/* 
 	 * No compat_ioctl for now because sr_block_ioctl never
-	 * seems to pass arbitary ioctls down to host drivers.
+	 * seems to pass arbitrary ioctls down to host drivers.
 	 */
 };
 
diff --git a/drivers/scsi/sun3_NCR5380.c b/drivers/scsi/sun3_NCR5380.c
index 4f0e5485ffde..07eaef1c722b 100644
--- a/drivers/scsi/sun3_NCR5380.c
+++ b/drivers/scsi/sun3_NCR5380.c
@@ -467,7 +467,7 @@ static void free_all_tags( void )
  *
  * Parameters: struct scsi_cmnd *cmd
  *    The command to work on. The first scatter buffer's data are
- *    assumed to be already transfered into ptr/this_residual.
+ *    assumed to be already transferred into ptr/this_residual.
  */
 
 static void merge_contiguous_buffers(struct scsi_cmnd *cmd)
@@ -1717,7 +1717,7 @@ static int NCR5380_select(struct Scsi_Host *instance, struct scsi_cmnd *cmd,
  *	bytes to transfer, **data - pointer to data pointer.
  * 
  * Returns : -1 when different phase is entered without transferring
- *	maximum number of bytes, 0 if all bytes are transfered or exit
+ *	maximum number of bytes, 0 if all bytes are transferred or exit
  *	is in same phase.
  *
  * 	Also, *phase, *count, *data are modified in place.
@@ -1904,7 +1904,7 @@ static int do_abort (struct Scsi_Host *host)
  *	bytes to transfer, **data - pointer to data pointer.
  * 
  * Returns : -1 when different phase is entered without transferring
- *	maximum number of bytes, 0 if all bytes or transfered or exit
+ *	maximum number of bytes, 0 if all bytes or transferred or exit
  *	is in same phase.
  *
  * 	Also, *phase, *count, *data are modified in place.
diff --git a/drivers/scsi/sym53c416.c b/drivers/scsi/sym53c416.c
index 190107ae120b..012c86edd59f 100644
--- a/drivers/scsi/sym53c416.c
+++ b/drivers/scsi/sym53c416.c
@@ -774,7 +774,7 @@ static int sym53c416_host_reset(Scsi_Cmnd *SCpnt)
 
 	/* printk("sym53c416_reset\n"); */
 	base = SCpnt->device->host->io_port;
-	/* search scsi_id - fixme, we shouldnt need to iterate for this! */
+	/* search scsi_id - fixme, we shouldn't need to iterate for this! */
 	for(i = 0; i < host_index && scsi_id == -1; i++)
 		if(hosts[i].base == base)
 			scsi_id = hosts[i].scsi_id;
diff --git a/drivers/scsi/sym53c8xx_2/sym_fw1.h b/drivers/scsi/sym53c8xx_2/sym_fw1.h
index 7b08d6caaa99..63952ee300b5 100644
--- a/drivers/scsi/sym53c8xx_2/sym_fw1.h
+++ b/drivers/scsi/sym53c8xx_2/sym_fw1.h
@@ -1449,7 +1449,7 @@ static struct SYM_FWB_SCR SYM_FWB_SCR = {
 		PADDR_B (msg_weird_seen),
 	/*
 	 *  We donnot handle extended messages from SCRIPTS.
-	 *  Read the amount of data correponding to the 
+	 *  Read the amount of data corresponding to the 
 	 *  message length and call the C code.
 	 */
 	SCR_COPY (1),
diff --git a/drivers/scsi/sym53c8xx_2/sym_fw2.h b/drivers/scsi/sym53c8xx_2/sym_fw2.h
index ae1fb179b88e..c87d72443a16 100644
--- a/drivers/scsi/sym53c8xx_2/sym_fw2.h
+++ b/drivers/scsi/sym53c8xx_2/sym_fw2.h
@@ -1326,7 +1326,7 @@ static struct SYM_FWB_SCR SYM_FWB_SCR = {
 		PADDR_B (msg_weird_seen),
 	/*
 	 *  We donnot handle extended messages from SCRIPTS.
-	 *  Read the amount of data correponding to the 
+	 *  Read the amount of data corresponding to the 
 	 *  message length and call the C code.
 	 */
 	SCR_STORE_REL (scratcha, 1),
diff --git a/drivers/scsi/sym53c8xx_2/sym_hipd.c b/drivers/scsi/sym53c8xx_2/sym_hipd.c
index 2c3e89ddf069..d92fe4037e94 100644
--- a/drivers/scsi/sym53c8xx_2/sym_hipd.c
+++ b/drivers/scsi/sym53c8xx_2/sym_hipd.c
@@ -2457,7 +2457,7 @@ static void sym_int_ma (struct sym_hcb *np)
 		}
 
 		/*
-		 *  The data in the dma fifo has not been transfered to
+		 *  The data in the dma fifo has not been transferred to
 		 *  the target -> add the amount to the rest
 		 *  and clear the data.
 		 *  Check the sstat2 register in case of wide transfer.
@@ -5094,7 +5094,7 @@ fail:
 }
 
 /*
- *  Lun control block deallocation. Returns the number of valid remaing LCBs
+ *  Lun control block deallocation. Returns the number of valid remaining LCBs
  *  for the target.
  */
 int sym_free_lcb(struct sym_hcb *np, u_char tn, u_char ln)
diff --git a/drivers/scsi/sym53c8xx_2/sym_malloc.c b/drivers/scsi/sym53c8xx_2/sym_malloc.c
index 883cac10daf9..6f9af0de7ec3 100644
--- a/drivers/scsi/sym53c8xx_2/sym_malloc.c
+++ b/drivers/scsi/sym53c8xx_2/sym_malloc.c
@@ -50,7 +50,7 @@
  *  from the SCRIPTS code. In addition, cache line alignment 
  *  is guaranteed for power of 2 cache line size.
  *
- *  This allocator has been developped for the Linux sym53c8xx  
+ *  This allocator has been developed for the Linux sym53c8xx  
  *  driver, since this O/S does not provide naturally aligned 
  *  allocations.
  *  It has the advantage of allowing the driver to use private 
diff --git a/drivers/scsi/ultrastor.c b/drivers/scsi/ultrastor.c
index 0571ef9639cb..9f4b58b7daad 100644
--- a/drivers/scsi/ultrastor.c
+++ b/drivers/scsi/ultrastor.c
@@ -138,6 +138,7 @@
 #include <linux/spinlock.h>
 #include <linux/stat.h>
 #include <linux/bitops.h>
+#include <linux/delay.h>
 
 #include <asm/io.h>
 #include <asm/system.h>
diff --git a/drivers/scsi/wd33c93.c b/drivers/scsi/wd33c93.c
index 5f697e0bd009..4468ae3610f7 100644
--- a/drivers/scsi/wd33c93.c
+++ b/drivers/scsi/wd33c93.c
@@ -1843,7 +1843,7 @@ check_setup_args(char *key, int *flags, int *val, char *buf)
  *
  * The original driver used to rely on a fixed sx_table, containing periods
  * for (only) the lower limits of the respective input-clock-frequency ranges
- * (8-10/12-15/16-20 MHz). Although it seems, that no problems ocurred with
+ * (8-10/12-15/16-20 MHz). Although it seems, that no problems occurred with
  * this setting so far, it might be desirable to adjust the transfer periods
  * closer to the really attached, possibly 25% higher, input-clock, since
  * - the wd33c93 may really use a significant shorter period, than it has
diff --git a/drivers/scsi/wd7000.c b/drivers/scsi/wd7000.c
index db451ae0a368..9ee0afef2d16 100644
--- a/drivers/scsi/wd7000.c
+++ b/drivers/scsi/wd7000.c
@@ -837,7 +837,7 @@ static inline Scb *alloc_scbs(struct Scsi_Host *host, int needed)
 		}
 	}
 
-	/* Take the lock, then check we didnt get beaten, if so try again */
+	/* Take the lock, then check we didn't get beaten, if so try again */
 	spin_lock_irqsave(&scbpool_lock, flags);
 	if (freescbs < needed) {
 		spin_unlock_irqrestore(&scbpool_lock, flags);
diff --git a/drivers/sfi/sfi_core.c b/drivers/sfi/sfi_core.c
index 04113e5304a0..1e824fb1649b 100644
--- a/drivers/sfi/sfi_core.c
+++ b/drivers/sfi/sfi_core.c
@@ -515,7 +515,7 @@ void __init sfi_init_late(void)
 }
 
 /*
- * The reason we put it here becasue we need wait till the /sys/firmware
+ * The reason we put it here because we need wait till the /sys/firmware
  * is setup, then our interface can be registered in /sys/firmware/sfi
  */
 core_initcall(sfi_sysfs_init);
diff --git a/drivers/sh/intc/core.c b/drivers/sh/intc/core.c
index 5833afbf08d7..c6ca115c71df 100644
--- a/drivers/sh/intc/core.c
+++ b/drivers/sh/intc/core.c
@@ -63,7 +63,7 @@ void intc_set_prio_level(unsigned int irq, unsigned int level)
 
 static void intc_redirect_irq(unsigned int irq, struct irq_desc *desc)
 {
-	generic_handle_irq((unsigned int)get_irq_data(irq));
+	generic_handle_irq((unsigned int)irq_get_handler_data(irq));
 }
 
 static void __init intc_register_irq(struct intc_desc *desc,
@@ -116,9 +116,9 @@ static void __init intc_register_irq(struct intc_desc *desc,
 	irq_data = irq_get_irq_data(irq);
 
 	disable_irq_nosync(irq);
-	set_irq_chip_and_handler_name(irq, &d->chip,
-				      handle_level_irq, "level");
-	set_irq_chip_data(irq, (void *)data[primary]);
+	irq_set_chip_and_handler_name(irq, &d->chip, handle_level_irq,
+				      "level");
+	irq_set_chip_data(irq, (void *)data[primary]);
 
 	/*
 	 * set priority level
@@ -340,9 +340,9 @@ int __init register_intc_controller(struct intc_desc *desc)
 			vect2->enum_id = 0;
 
 			/* redirect this interrupts to the first one */
-			set_irq_chip(irq2, &dummy_irq_chip);
-			set_irq_chained_handler(irq2, intc_redirect_irq);
-			set_irq_data(irq2, (void *)irq);
+			irq_set_chip(irq2, &dummy_irq_chip);
+			irq_set_chained_handler(irq2, intc_redirect_irq);
+			irq_set_handler_data(irq2, (void *)irq);
 		}
 	}
 
@@ -387,19 +387,16 @@ static int intc_suspend(void)
 		/* enable wakeup irqs belonging to this intc controller */
 		for_each_active_irq(irq) {
 			struct irq_data *data;
-			struct irq_desc *desc;
 			struct irq_chip *chip;
 
 			data = irq_get_irq_data(irq);
 			chip = irq_data_get_irq_chip(data);
 			if (chip != &d->chip)
 				continue;
-			desc = irq_to_desc(irq);
-			if ((desc->status & IRQ_WAKEUP))
+			if (irqd_is_wakeup_set(data))
 				chip->irq_enable(data);
 		}
 	}
-
 	return 0;
 }
 
@@ -412,7 +409,6 @@ static void intc_resume(void)
 
 		for_each_active_irq(irq) {
 			struct irq_data *data;
-			struct irq_desc *desc;
 			struct irq_chip *chip;
 
 			data = irq_get_irq_data(irq);
@@ -423,8 +419,7 @@ static void intc_resume(void)
 			 */
 			if (chip != &d->chip)
 				continue;
-			desc = irq_to_desc(irq);
-			if (desc->status & IRQ_DISABLED)
+			if (irqd_irq_disabled(data))
 				chip->irq_disable(data);
 			else
 				chip->irq_enable(data);
diff --git a/drivers/sh/intc/internals.h b/drivers/sh/intc/internals.h
index df36a421e675..5b934851efa8 100644
--- a/drivers/sh/intc/internals.h
+++ b/drivers/sh/intc/internals.h
@@ -86,7 +86,7 @@ enum {	MODE_ENABLE_REG = 0, /* Bit(s) set -> interrupt enabled */
 
 static inline struct intc_desc_int *get_intc_desc(unsigned int irq)
 {
-	struct irq_chip *chip = get_irq_chip(irq);
+	struct irq_chip *chip = irq_get_chip(irq);
 
 	return container_of(chip, struct intc_desc_int, chip);
 }
@@ -103,7 +103,7 @@ static inline void activate_irq(int irq)
 	set_irq_flags(irq, IRQF_VALID);
 #else
 	/* same effect on other architectures */
-	set_irq_noprobe(irq);
+	irq_set_noprobe(irq);
 #endif
 }
 
diff --git a/drivers/sh/intc/virq.c b/drivers/sh/intc/virq.c
index 4e0ff7181164..ce5f81d7cc6b 100644
--- a/drivers/sh/intc/virq.c
+++ b/drivers/sh/intc/virq.c
@@ -110,7 +110,7 @@ static void intc_virq_handler(unsigned int irq, struct irq_desc *desc)
 {
 	struct irq_data *data = irq_get_irq_data(irq);
 	struct irq_chip *chip = irq_data_get_irq_chip(data);
-	struct intc_virq_list *entry, *vlist = irq_data_get_irq_data(data);
+	struct intc_virq_list *entry, *vlist = irq_data_get_irq_handler_data(data);
 	struct intc_desc_int *d = get_intc_desc(irq);
 
 	chip->irq_mask_ack(data);
@@ -118,7 +118,7 @@ static void intc_virq_handler(unsigned int irq, struct irq_desc *desc)
 	for_each_virq(entry, vlist) {
 		unsigned long addr, handle;
 
-		handle = (unsigned long)get_irq_data(entry->irq);
+		handle = (unsigned long)irq_get_handler_data(entry->irq);
 		addr = INTC_REG(d, _INTC_ADDR_E(handle), 0);
 
 		if (intc_reg_fns[_INTC_FN(handle)](addr, handle, 0))
@@ -229,13 +229,13 @@ restart:
 
 		intc_irq_xlate_set(irq, entry->enum_id, d);
 
-		set_irq_chip_and_handler_name(irq, get_irq_chip(entry->pirq),
+		irq_set_chip_and_handler_name(irq, irq_get_chip(entry->pirq),
 					      handle_simple_irq, "virq");
-		set_irq_chip_data(irq, get_irq_chip_data(entry->pirq));
+		irq_set_chip_data(irq, irq_get_chip_data(entry->pirq));
 
-		set_irq_data(irq, (void *)entry->handle);
+		irq_set_handler_data(irq, (void *)entry->handle);
 
-		set_irq_chained_handler(entry->pirq, intc_virq_handler);
+		irq_set_chained_handler(entry->pirq, intc_virq_handler);
 		add_virq_to_pirq(entry->pirq, irq);
 
 		radix_tree_tag_clear(&d->tree, entry->enum_id,
diff --git a/drivers/spi/amba-pl022.c b/drivers/spi/amba-pl022.c
index 5a4e0afb9ad6..5825370bad25 100644
--- a/drivers/spi/amba-pl022.c
+++ b/drivers/spi/amba-pl022.c
@@ -661,7 +661,7 @@ static void readwriter(struct pl022 *pl022)
 {
 
 	/*
-	 * The FIFO depth is different inbetween primecell variants.
+	 * The FIFO depth is different between primecell variants.
 	 * I believe filling in too much in the FIFO might cause
 	 * errons in 8bit wide transfers on ARM variants (just 8 words
 	 * FIFO, means only 8x8 = 64 bits in FIFO) at least.
@@ -722,7 +722,7 @@ static void readwriter(struct pl022 *pl022)
 		 * This inner reader takes care of things appearing in the RX
 		 * FIFO as we're transmitting. This will happen a lot since the
 		 * clock starts running when you put things into the TX FIFO,
-		 * and then things are continously clocked into the RX FIFO.
+		 * and then things are continuously clocked into the RX FIFO.
 		 */
 		while ((readw(SSP_SR(pl022->virtbase)) & SSP_SR_MASK_RNE)
 		       && (pl022->rx < pl022->rx_end)) {
@@ -842,7 +842,7 @@ static void dma_callback(void *data)
 
 	unmap_free_dma_scatter(pl022);
 
-	/* Update total bytes transfered */
+	/* Update total bytes transferred */
 	msg->actual_length += pl022->cur_transfer->len;
 	if (pl022->cur_transfer->cs_change)
 		pl022->cur_chip->
@@ -1224,7 +1224,7 @@ static irqreturn_t pl022_interrupt_handler(int irq, void *dev_id)
 				 "number of bytes on a 16bit bus?)\n",
 				 (u32) (pl022->rx - pl022->rx_end));
 		}
-		/* Update total bytes transfered */
+		/* Update total bytes transferred */
 		msg->actual_length += pl022->cur_transfer->len;
 		if (pl022->cur_transfer->cs_change)
 			pl022->cur_chip->
@@ -1415,11 +1415,11 @@ static void do_polling_transfer(struct pl022 *pl022)
 		       SSP_CR1(pl022->virtbase));
 
 		dev_dbg(&pl022->adev->dev, "polling transfer ongoing ...\n");
-		/* FIXME: insert a timeout so we don't hang here indefinately */
+		/* FIXME: insert a timeout so we don't hang here indefinitely */
 		while (pl022->tx < pl022->tx_end || pl022->rx < pl022->rx_end)
 			readwriter(pl022);
 
-		/* Update total byte transfered */
+		/* Update total byte transferred */
 		message->actual_length += pl022->cur_transfer->len;
 		if (pl022->cur_transfer->cs_change)
 			pl022->cur_chip->cs_control(SSP_CHIP_DESELECT);
@@ -2129,7 +2129,7 @@ pl022_probe(struct amba_device *adev, const struct amba_id *id)
 			"probe - problem registering spi master\n");
 		goto err_spi_register;
 	}
-	dev_dbg(dev, "probe succeded\n");
+	dev_dbg(dev, "probe succeeded\n");
 	/*
 	 * Disable the silicon block pclk and any voltage domain and just
 	 * power it up and clock it when it's needed
@@ -2184,7 +2184,7 @@ pl022_remove(struct amba_device *adev)
 	spi_unregister_master(pl022->master);
 	spi_master_put(pl022->master);
 	amba_set_drvdata(adev, NULL);
-	dev_dbg(&adev->dev, "remove succeded\n");
+	dev_dbg(&adev->dev, "remove succeeded\n");
 	return 0;
 }
 
diff --git a/drivers/spi/au1550_spi.c b/drivers/spi/au1550_spi.c
index 3c9ade69643f..b50563d320e1 100644
--- a/drivers/spi/au1550_spi.c
+++ b/drivers/spi/au1550_spi.c
@@ -480,7 +480,7 @@ static irqreturn_t au1550_spi_dma_irq_callback(struct au1550_spi *hw)
 		au1xxx_dbdma_stop(hw->dma_rx_ch);
 		au1xxx_dbdma_stop(hw->dma_tx_ch);
 
-		/* get number of transfered bytes */
+		/* get number of transferred bytes */
 		hw->rx_count = hw->len - au1xxx_get_dma_residue(hw->dma_rx_ch);
 		hw->tx_count = hw->len - au1xxx_get_dma_residue(hw->dma_tx_ch);
 
diff --git a/drivers/spi/dw_spi.c b/drivers/spi/dw_spi.c
index 9a6196461b27..b1a4b9f503ae 100644
--- a/drivers/spi/dw_spi.c
+++ b/drivers/spi/dw_spi.c
@@ -345,7 +345,7 @@ static void int_error_stop(struct dw_spi *dws, const char *msg)
 
 void dw_spi_xfer_done(struct dw_spi *dws)
 {
-	/* Update total byte transfered return count actual bytes read */
+	/* Update total byte transferred return count actual bytes read */
 	dws->cur_msg->actual_length += dws->len;
 
 	/* Move to next transfer */
diff --git a/drivers/spi/dw_spi.h b/drivers/spi/dw_spi.h
index fb0bce564844..b23e452adaf7 100644
--- a/drivers/spi/dw_spi.h
+++ b/drivers/spi/dw_spi.h
@@ -46,7 +46,7 @@
 #define SPI_INT_RXFI			(1 << 4)
 #define SPI_INT_MSTI			(1 << 5)
 
-/* TX RX interrupt level threshhold, max can be 256 */
+/* TX RX interrupt level threshold, max can be 256 */
 #define SPI_INT_THRESHOLD		32
 
 enum dw_ssi_type {
diff --git a/drivers/spi/ep93xx_spi.c b/drivers/spi/ep93xx_spi.c
index 0ba35df9a6df..d3570071e98f 100644
--- a/drivers/spi/ep93xx_spi.c
+++ b/drivers/spi/ep93xx_spi.c
@@ -512,7 +512,7 @@ static int ep93xx_spi_read_write(struct ep93xx_spi *espi)
  *
  * This function processes one SPI transfer given in @t. Function waits until
  * transfer is complete (may sleep) and updates @msg->status based on whether
- * transfer was succesfully processed or not.
+ * transfer was successfully processed or not.
  */
 static void ep93xx_spi_process_transfer(struct ep93xx_spi *espi,
 					struct spi_message *msg,
diff --git a/drivers/spi/pxa2xx_spi.c b/drivers/spi/pxa2xx_spi.c
index a429b01d0285..9c74aad6be93 100644
--- a/drivers/spi/pxa2xx_spi.c
+++ b/drivers/spi/pxa2xx_spi.c
@@ -700,7 +700,7 @@ static void int_transfer_complete(struct driver_data *drv_data)
 	if (!pxa25x_ssp_comp(drv_data))
 		write_SSTO(0, reg);
 
-	/* Update total byte transfered return count actual bytes read */
+	/* Update total byte transferred return count actual bytes read */
 	drv_data->cur_msg->actual_length += drv_data->len -
 				(drv_data->rx_end - drv_data->rx);
 
@@ -759,7 +759,7 @@ static irqreturn_t interrupt_transfer(struct driver_data *drv_data)
 
 		/*
 		 * PXA25x_SSP has no timeout, set up rx threshould for the
-		 * remaing RX bytes.
+		 * remaining RX bytes.
 		 */
 		if (pxa25x_ssp_comp(drv_data)) {
 
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 34bb17f03019..82b9a428c323 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -957,7 +957,7 @@ EXPORT_SYMBOL_GPL(spi_sync);
  * drivers may DMA directly into and out of the message buffers.
  *
  * This call should be used by drivers that require exclusive access to the
- * SPI bus. It has to be preceeded by a spi_bus_lock call. The SPI bus must
+ * SPI bus. It has to be preceded by a spi_bus_lock call. The SPI bus must
  * be released by a spi_bus_unlock call when the exclusive access is over.
  *
  * It returns zero on success, else a negative error code.
diff --git a/drivers/spi/spi_bfin5xx.c b/drivers/spi/spi_bfin5xx.c
index a28462486df8..bdb7289a1d22 100644
--- a/drivers/spi/spi_bfin5xx.c
+++ b/drivers/spi/spi_bfin5xx.c
@@ -905,7 +905,7 @@ static void bfin_spi_pump_transfers(unsigned long data)
 			"IO write error!\n");
 		message->state = ERROR_STATE;
 	} else {
-		/* Update total byte transfered */
+		/* Update total byte transferred */
 		message->actual_length += drv_data->len_in_bytes;
 		/* Move to next transfer of this msg */
 		message->state = bfin_spi_next_transfer(drv_data);
diff --git a/drivers/spi/spi_fsl_espi.c b/drivers/spi/spi_fsl_espi.c
index 900e921ab80e..496f895a0024 100644
--- a/drivers/spi/spi_fsl_espi.c
+++ b/drivers/spi/spi_fsl_espi.c
@@ -474,7 +474,7 @@ static int fsl_espi_setup(struct spi_device *spi)
 	mpc8xxx_spi = spi_master_get_devdata(spi->master);
 	reg_base = mpc8xxx_spi->reg_base;
 
-	hw_mode = cs->hw_mode; /* Save orginal settings */
+	hw_mode = cs->hw_mode; /* Save original settings */
 	cs->hw_mode = mpc8xxx_spi_read_reg(
 			&reg_base->csmode[spi->chip_select]);
 	/* mask out bits we are going to set */
diff --git a/drivers/ssb/pci.c b/drivers/ssb/pci.c
index a467b20baac8..6f34963b3c64 100644
--- a/drivers/ssb/pci.c
+++ b/drivers/ssb/pci.c
@@ -670,7 +670,7 @@ static int ssb_pci_sprom_get(struct ssb_bus *bus,
 		ssb_printk(KERN_ERR PFX "No SPROM available!\n");
 		return -ENODEV;
 	}
-	if (bus->chipco.dev) {	/* can be unavailible! */
+	if (bus->chipco.dev) {	/* can be unavailable! */
 		/*
 		 * get SPROM offset: SSB_SPROM_BASE1 except for
 		 * chipcommon rev >= 31 or chip ID is 0x4312 and
diff --git a/drivers/ssb/sprom.c b/drivers/ssb/sprom.c
index 4f7cc8d13277..5f34d7a3e3a5 100644
--- a/drivers/ssb/sprom.c
+++ b/drivers/ssb/sprom.c
@@ -185,7 +185,7 @@ bool ssb_is_sprom_available(struct ssb_bus *bus)
 	/* this routine differs from specs as we do not access SPROM directly
 	   on PCMCIA */
 	if (bus->bustype == SSB_BUSTYPE_PCI &&
-	    bus->chipco.dev &&	/* can be unavailible! */
+	    bus->chipco.dev &&	/* can be unavailable! */
 	    bus->chipco.dev->id.revision >= 31)
 		return bus->chipco.capabilities & SSB_CHIPCO_CAP_SPROM;
 
diff --git a/drivers/staging/Kconfig b/drivers/staging/Kconfig
index 18b43fcb4171..dca4a0bb6ca9 100644
--- a/drivers/staging/Kconfig
+++ b/drivers/staging/Kconfig
@@ -117,8 +117,6 @@ source "drivers/staging/hv/Kconfig"
 
 source "drivers/staging/vme/Kconfig"
 
-source "drivers/staging/memrar/Kconfig"
-
 source "drivers/staging/sep/Kconfig"
 
 source "drivers/staging/iio/Kconfig"
diff --git a/drivers/staging/Makefile b/drivers/staging/Makefile
index cfd13cd55efb..eb93012b6f59 100644
--- a/drivers/staging/Makefile
+++ b/drivers/staging/Makefile
@@ -40,7 +40,6 @@ obj-$(CONFIG_VT6655)		+= vt6655/
 obj-$(CONFIG_VT6656)		+= vt6656/
 obj-$(CONFIG_HYPERV)		+= hv/
 obj-$(CONFIG_VME_BUS)		+= vme/
-obj-$(CONFIG_MRST_RAR_HANDLER)	+= memrar/
 obj-$(CONFIG_DX_SEP)            += sep/
 obj-$(CONFIG_IIO)		+= iio/
 obj-$(CONFIG_CS5535_GPIO)	+= cs5535_gpio/
diff --git a/drivers/staging/altera-stapl/altera-jtag.c b/drivers/staging/altera-stapl/altera-jtag.c
index 6b633b179a7e..876308858b82 100644
--- a/drivers/staging/altera-stapl/altera-jtag.c
+++ b/drivers/staging/altera-stapl/altera-jtag.c
@@ -23,6 +23,7 @@
  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
+#include <linux/delay.h>
 #include <linux/firmware.h>
 #include <linux/slab.h>
 #include <staging/altera.h>
diff --git a/drivers/staging/ath6kl/htc2/AR6000/ar6k_gmbox_hciuart.c b/drivers/staging/ath6kl/htc2/AR6000/ar6k_gmbox_hciuart.c
index c6488e0d1305..41223f953589 100644
--- a/drivers/staging/ath6kl/htc2/AR6000/ar6k_gmbox_hciuart.c
+++ b/drivers/staging/ath6kl/htc2/AR6000/ar6k_gmbox_hciuart.c
@@ -237,7 +237,7 @@ static int CreditsAvailableCallback(void *pContext, int Credits, bool CreditIRQE
                          pProt->CreditsCurrentSeek));
         
         if (pProt->CreditsAvailable >= pProt->CreditsCurrentSeek) {
-                /* we have enough credits to fullfill at least 1 packet waiting in the queue */
+                /* we have enough credits to fulfill at least 1 packet waiting in the queue */
             pProt->CreditsCurrentSeek = 0;
             pProt->SendStateFlags &= ~HCI_SEND_WAIT_CREDITS;  
             doPendingSends = true;
@@ -285,7 +285,7 @@ static void FailureCallback(void *pContext, int Status)
 {
     struct gmbox_proto_hci_uart  *pProt = (struct gmbox_proto_hci_uart *)pContext; 
     
-        /* target assertion occured */           
+        /* target assertion occurred */           
     NotifyTransportFailure(pProt, Status);  
 }
 
@@ -507,7 +507,7 @@ static int HCIUartMessagePending(void *pContext, u8 LookAheadBytes[], int ValidB
         
     } while (false);
         
-        /* check if we need to disable the reciever */
+        /* check if we need to disable the receiver */
     if (status || blockRecv) {
         DevGMboxIRQAction(pProt->pDev, GMBOX_RECV_IRQ_DISABLE, PROC_IO_SYNC); 
     }
diff --git a/drivers/staging/ath6kl/include/aggr_recv_api.h b/drivers/staging/ath6kl/include/aggr_recv_api.h
index 67a058492c4d..5ead58d5febd 100644
--- a/drivers/staging/ath6kl/include/aggr_recv_api.h
+++ b/drivers/staging/ath6kl/include/aggr_recv_api.h
@@ -72,7 +72,7 @@ aggr_process_bar(void *cntxt, u8 tid, u16 seq_no);
  * This event is to initiate/modify the receive side window.
  * Target will send WMI_ADDBA_REQ_EVENTID event to host - to setup 
  * recv re-ordering queues. Target will negotiate ADDBA with peer, 
- * and indicate via this event after succesfully completing the 
+ * and indicate via this event after successfully completing the 
  * negotiation. This happens in two situations:
  *  1. Initial setup of aggregation
  *  2. Renegotiation of current recv window.
diff --git a/drivers/staging/ath6kl/include/common/a_hci.h b/drivers/staging/ath6kl/include/common/a_hci.h
index 08cb013090be..379d65224e3a 100644
--- a/drivers/staging/ath6kl/include/common/a_hci.h
+++ b/drivers/staging/ath6kl/include/common/a_hci.h
@@ -124,7 +124,7 @@
 #define PAL_NUM_COMPL_DATA_BLOCK_EVENT              0x48
 #define PAL_SHORT_RANGE_MODE_CHANGE_COMPL_EVENT     0x4C
 #define PAL_AMP_STATUS_CHANGE_EVENT                 0x4D
-/*======== End of PAL events definiton =================*/
+/*======== End of PAL events definition =================*/
 
 
 /*======== Timeouts (not part of HCI cmd, but input to PAL engine) =========*/
@@ -430,7 +430,7 @@ typedef struct  hci_event_hw_err_t {
     u8 hw_err_code;
 } POSTPACK HCI_EVENT_HW_ERR;
 
-/* Flush occured event */
+/* Flush occurred event */
 /* Qos Violation event */
 typedef struct  hci_event_handle_t {
     u8 event_code;
diff --git a/drivers/staging/ath6kl/include/common/dbglog.h b/drivers/staging/ath6kl/include/common/dbglog.h
index 3a3d00da0b81..b7a123086ccf 100644
--- a/drivers/staging/ath6kl/include/common/dbglog.h
+++ b/drivers/staging/ath6kl/include/common/dbglog.h
@@ -44,7 +44,7 @@ extern "C" {
 #define DBGLOG_MODULEID_NUM_MAX          16 /* Upper limit is width of mask */
 
 /*
- * Please ensure that the definition of any new module intrduced is captured
+ * Please ensure that the definition of any new module introduced is captured
  * between the DBGLOG_MODULEID_START and DBGLOG_MODULEID_END defines. The 
  * structure is required for the parser to correctly pick up the values for
  * different modules.
diff --git a/drivers/staging/ath6kl/include/common/epping_test.h b/drivers/staging/ath6kl/include/common/epping_test.h
index 5c40d8a2229d..7027fac8f37e 100644
--- a/drivers/staging/ath6kl/include/common/epping_test.h
+++ b/drivers/staging/ath6kl/include/common/epping_test.h
@@ -92,7 +92,7 @@ typedef PREPACK struct {
 #define EPPING_CMD_RESET_RECV_CNT       2   /* reset recv count */
 #define EPPING_CMD_CAPTURE_RECV_CNT     3   /* fetch recv count, 4-byte count returned in CmdBuffer_t */
 #define EPPING_CMD_NO_ECHO              4   /* non-echo packet test (tx-only) */
-#define EPPING_CMD_CONT_RX_START        5   /* continous RX packets, parameters are in CmdBuffer_h */
+#define EPPING_CMD_CONT_RX_START        5   /* continuous RX packets, parameters are in CmdBuffer_h */
 #define EPPING_CMD_CONT_RX_STOP         6   /* stop continuous RX packet transmission */
 
     /* test command parameters may be no more than 8 bytes */
diff --git a/drivers/staging/ath6kl/include/common/ini_dset.h b/drivers/staging/ath6kl/include/common/ini_dset.h
index 8bfc75940c8f..a9e05fa0f659 100644
--- a/drivers/staging/ath6kl/include/common/ini_dset.h
+++ b/drivers/staging/ath6kl/include/common/ini_dset.h
@@ -31,7 +31,7 @@
  */
 typedef enum {
 #if defined(AR6002_REV4) || defined(AR6003)
-/* Add these definitions for compatability  */
+/* Add these definitions for compatibility  */
 #define WHAL_INI_DATA_ID_BB_RFGAIN_LNA1 WHAL_INI_DATA_ID_BB_RFGAIN
 #define WHAL_INI_DATA_ID_BB_RFGAIN_LNA2 WHAL_INI_DATA_ID_BB_RFGAIN
     WHAL_INI_DATA_ID_NULL               =0,
diff --git a/drivers/staging/ath6kl/include/common/testcmd.h b/drivers/staging/ath6kl/include/common/testcmd.h
index 9ca1f2ac2cbf..7d94aee508b3 100644
--- a/drivers/staging/ath6kl/include/common/testcmd.h
+++ b/drivers/staging/ath6kl/include/common/testcmd.h
@@ -43,8 +43,8 @@ typedef enum {
     PN15_PATTERN
 }TX_DATA_PATTERN;
 
-/* Continous tx
-   mode : TCMD_CONT_TX_OFF - Disabling continous tx
+/* Continuous tx
+   mode : TCMD_CONT_TX_OFF - Disabling continuous tx
           TCMD_CONT_TX_SINE - Enable continuous unmodulated tx
           TCMD_CONT_TX_FRAME- Enable continuous modulated tx
    freq : Channel freq in Mhz. (e.g 2412 for channel 1 in 11 g)
diff --git a/drivers/staging/ath6kl/include/common/wmi.h b/drivers/staging/ath6kl/include/common/wmi.h
index c645af373442..4e6343485362 100644
--- a/drivers/staging/ath6kl/include/common/wmi.h
+++ b/drivers/staging/ath6kl/include/common/wmi.h
@@ -1568,8 +1568,8 @@ typedef PREPACK struct {
                                    switch to ps-poll mode
                                   default = 3 */
 
-	u32 scoContStompMax;   /* max number of continous stomp allowed in opt mode.
-                                   if excedded switch to pspoll mode
+	u32 scoContStompMax;   /* max number of continuous stomp allowed in opt mode.
+                                   if exceeded switch to pspoll mode
                                     default = 3 */
 
 	u32 scoMinlowRateMbps; /* Low rate threshold */
@@ -2084,7 +2084,7 @@ typedef PREPACK struct {
 /*
  * BSS INFO HDR version 2.0
  * With 6 bytes HTC header and 6 bytes of WMI header
- * WMI_BSS_INFO_HDR cannot be accomodated in the removed 802.11 management
+ * WMI_BSS_INFO_HDR cannot be accommodated in the removed 802.11 management
  * header space.
  * - Reduce the ieMask to 2 bytes as only two bit flags are used
  * - Remove rssi and compute it on the host. rssi = snr - 95
@@ -2911,7 +2911,7 @@ typedef PREPACK struct {
     u8 pktID; /* packet ID to identify parent packet */
     u8 rateIdx; /* rate index on successful transmission */
     u8 ackFailures; /* number of ACK failures in tx attempt */
-#if 0 /* optional params currently ommitted. */
+#if 0 /* optional params currently omitted. */
     u32 queueDelay; // usec delay measured Tx Start time - host delivery time
     u32 mediaDelay; // usec delay measured ACK rx time - host delivery time
 #endif
diff --git a/drivers/staging/ath6kl/include/common/wmix.h b/drivers/staging/ath6kl/include/common/wmix.h
index 5ebb8285d135..36acba66d49f 100644
--- a/drivers/staging/ath6kl/include/common/wmix.h
+++ b/drivers/staging/ath6kl/include/common/wmix.h
@@ -191,7 +191,7 @@ typedef PREPACK struct {
 } POSTPACK WMIX_GPIO_INTR_ACK_CMD;
 
 /*
- * Target informs Host of GPIO interrupts that have ocurred since the
+ * Target informs Host of GPIO interrupts that have occurred since the
  * last WMIX_GIPO_INTR_ACK_CMD was received.  Additional information --
  * the current GPIO input values is provided -- in order to support
  * use of a GPIO interrupt as a Data Valid signal for other GPIO pins.
diff --git a/drivers/staging/ath6kl/include/htc_api.h b/drivers/staging/ath6kl/include/htc_api.h
index 1bc2488788ab..4fb767559f82 100644
--- a/drivers/staging/ath6kl/include/htc_api.h
+++ b/drivers/staging/ath6kl/include/htc_api.h
@@ -209,7 +209,7 @@ struct htc_endpoint_credit_dist {
 typedef enum _HTC_CREDIT_DIST_REASON {
     HTC_CREDIT_DIST_SEND_COMPLETE = 0,     /* credits available as a result of completed
                                               send operations (MANDATORY) resulting in credit reports */
-    HTC_CREDIT_DIST_ACTIVITY_CHANGE = 1,   /* a change in endpoint activity occured (OPTIONAL) */
+    HTC_CREDIT_DIST_ACTIVITY_CHANGE = 1,   /* a change in endpoint activity occurred (OPTIONAL) */
     HTC_CREDIT_DIST_SEEK_CREDITS,          /* an endpoint needs to "seek" credits (OPTIONAL) */
     HTC_DUMP_CREDIT_STATE                  /* for debugging, dump any state information that is kept by
                                               the distribution function */
@@ -253,7 +253,7 @@ struct htc_endpoint_stats {
     u32 RxPacketsBundled;       /* count of recv packets received in a bundle */
     u32 RxBundleLookAheads;     /* count of number of bundled lookaheads */
     u32 RxBundleIndFromHdr;     /* count of the number of bundle indications from the HTC header */
-    u32 RxAllocThreshHit;       /* count of the number of times the recv allocation threshhold was hit */
+    u32 RxAllocThreshHit;       /* count of the number of times the recv allocation threshold was hit */
     u32 RxAllocThreshBytes;     /* total number of bytes */
 };
 
@@ -391,7 +391,7 @@ int    HTCSendPkt(HTC_HANDLE HTCHandle, struct htc_packet *pPacket);
 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
 void        HTCStop(HTC_HANDLE HTCHandle);
 /*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-  @desc: Destory HTC service
+  @desc: Destroy HTC service
   @function name: HTCDestroy
   @input: HTCHandle 
   @output:
diff --git a/drivers/staging/ath6kl/miscdrv/credit_dist.c b/drivers/staging/ath6kl/miscdrv/credit_dist.c
index ae54e1f48e50..33fa0209026d 100644
--- a/drivers/staging/ath6kl/miscdrv/credit_dist.c
+++ b/drivers/staging/ath6kl/miscdrv/credit_dist.c
@@ -341,7 +341,7 @@ static void SeekCredits(struct common_credit_state_info *pCredInfo,
         credits = min(pCredInfo->CurrentFreeCredits,pEPDist->TxCreditsSeek);
 
         if (credits >= pEPDist->TxCreditsSeek) {
-                /* we found some to fullfill the seek request */
+                /* we found some to fulfill the seek request */
             break;
         }
 
@@ -364,8 +364,8 @@ static void SeekCredits(struct common_credit_state_info *pCredInfo,
 
             if ((pCurEpDist->TxCreditsAssigned - need) >= pCurEpDist->TxCreditsMin) {
                     /* the current one has been allocated more than it's minimum and it
-                     * has enough credits assigned above it's minimum to fullfill our need
-                     * try to take away just enough to fullfill our need */
+                     * has enough credits assigned above it's minimum to fulfill our need
+                     * try to take away just enough to fulfill our need */
                 ReduceCredits(pCredInfo,
                               pCurEpDist,
                               pCurEpDist->TxCreditsAssigned - need);
diff --git a/drivers/staging/ath6kl/os/linux/ar6000_android.c b/drivers/staging/ath6kl/os/linux/ar6000_android.c
index c96f6e9c99c6..4aa75ee2cb13 100644
--- a/drivers/staging/ath6kl/os/linux/ar6000_android.c
+++ b/drivers/staging/ath6kl/os/linux/ar6000_android.c
@@ -372,7 +372,7 @@ void android_ar6k_check_wow_status(struct ar6_softc *ar, struct sk_buff *skb, bo
             }
         }
         if (needWake) {
-            /* keep host wake up if there is any event and packate comming in*/
+            /* keep host wake up if there is any event and packate coming in*/
             if (wowledon) {
                 char buf[32];
                 int len = sprintf(buf, "on");
diff --git a/drivers/staging/ath6kl/os/linux/ar6000_drv.c b/drivers/staging/ath6kl/os/linux/ar6000_drv.c
index 27cb02dfad3c..97d6ce63b5c0 100644
--- a/drivers/staging/ath6kl/os/linux/ar6000_drv.c
+++ b/drivers/staging/ath6kl/os/linux/ar6000_drv.c
@@ -520,7 +520,7 @@ dbglog_parse_debug_logs(s8 *datap, u32 len)
 int
 ar6000_dbglog_get_debug_logs(struct ar6_softc *ar)
 {
-    u32 data[8]; /* Should be able to accomodate struct dbglog_buf_s */
+    u32 data[8]; /* Should be able to accommodate struct dbglog_buf_s */
     u32 address;
     u32 length;
     u32 dropped;
@@ -2063,7 +2063,7 @@ ar6000_stop_endpoint(struct net_device *dev, bool keepprofile, bool getdbglogs)
  * - In case of surprise removal, the hcd already frees up the pending
  *   for the device and hence there is no need to unregister the function
  *   driver inorder to get these requests. For planned removal, the function
- *   driver has to explictly unregister itself to have the hcd return all the
+ *   driver has to explicitly unregister itself to have the hcd return all the
  *   pending requests before the data structures for the devices are freed up.
  *   Note that as per the current implementation, the function driver will
  *   end up releasing all the devices since there is no API to selectively
@@ -2982,7 +2982,7 @@ ar6000_data_tx(struct sk_buff *skb, struct net_device *dev)
     /* If target is not associated */
     if( (!ar->arConnected && !bypasswmi)
 #ifdef CONFIG_HOST_TCMD_SUPPORT
-     /* TCMD doesnt support any data, free the buf and return */
+     /* TCMD doesn't support any data, free the buf and return */
     || (ar->arTargetMode == AR6000_TCMD_MODE)
 #endif
                                             ) {
@@ -6393,7 +6393,7 @@ static void DoHTCSendPktsTest(struct ar6_softc *ar, int MapNo, HTC_ENDPOINT_ID e
 /*
  * Add support for adding and removing a virtual adapter for soft AP.
  * Some OS requires different adapters names for station and soft AP mode.
- * To support these requirement, create and destory a netdevice  instance
+ * To support these requirement, create and destroy a netdevice  instance
  * when the AP mode is operational. A full fledged support for virual device
  * is not implemented. Rather a virtual interface is created and is linked
  * with the existing physical device instance during the operation of the 
diff --git a/drivers/staging/ath6kl/wmi/wmi.c b/drivers/staging/ath6kl/wmi/wmi.c
index 0ddaee21f9d7..a00bf0a59871 100644
--- a/drivers/staging/ath6kl/wmi/wmi.c
+++ b/drivers/staging/ath6kl/wmi/wmi.c
@@ -4867,7 +4867,7 @@ wmi_set_country(struct wmi_t *wmip, u8 *countryCode)
 #ifdef CONFIG_HOST_TCMD_SUPPORT
 /* WMI  layer doesn't need to know the data type of the test cmd.
    This would be beneficial for customers like Qualcomm, who might
-   have different test command requirements from differnt manufacturers
+   have different test command requirements from different manufacturers
  */
 int
 wmi_test_cmd(struct wmi_t *wmip, u8 *buf, u32 len)
diff --git a/drivers/staging/bcm/Adapter.h b/drivers/staging/bcm/Adapter.h
index 32909e2938d5..20cca24ff5f0 100644
--- a/drivers/staging/bcm/Adapter.h
+++ b/drivers/staging/bcm/Adapter.h
@@ -412,7 +412,7 @@ struct _MINI_ADAPTER
 
 	// this to keep track of the Tx and Rx MailBox Registers.
 	atomic_t		    CurrNumFreeTxDesc;
-	// to keep track the no of byte recieved
+	// to keep track the no of byte received
 	USHORT				PrevNumRecvDescs;
 	USHORT				CurrNumRecvDescs;
 	UINT				u32TotalDSD;
@@ -527,7 +527,7 @@ struct _MINI_ADAPTER
 	BOOLEAN			bStatusWrite;
 	UINT			uiNVMDSDSize;
 	UINT			uiVendorExtnFlag;
-	 //it will always represent choosed DSD at any point of time.
+	 //it will always represent chosen DSD at any point of time.
 	 // Generally it is Active DSD but in case of NVM RD/WR it might be different.
 	UINT			ulFlashCalStart;
 	ULONG                   ulFlashControlSectionStart;
@@ -546,10 +546,10 @@ struct _MINI_ADAPTER
 	PFLASH_CS_INFO psFlashCSInfo ;
 	PFLASH2X_VENDORSPECIFIC_INFO psFlash2xVendorInfo;
 	UINT uiFlashBaseAdd; //Flash start address
-	UINT uiActiveISOOffset; //Active ISO offset choosen before f/w download
+	UINT uiActiveISOOffset; //Active ISO offset chosen before f/w download
 	FLASH2X_SECTION_VAL eActiveISO; //Active ISO section val
-	FLASH2X_SECTION_VAL eActiveDSD;	//Active DSD val choosen before f/w download
-	UINT uiActiveDSDOffsetAtFwDld;  //For accessing Active DSD choosen before f/w download
+	FLASH2X_SECTION_VAL eActiveDSD;	//Active DSD val chosen before f/w download
+	UINT uiActiveDSDOffsetAtFwDld;  //For accessing Active DSD chosen before f/w download
 	UINT uiFlashLayoutMajorVersion ;
 	UINT uiFlashLayoutMinorVersion;
 	BOOLEAN bAllDSDWriteAllow ;
diff --git a/drivers/staging/bcm/CmHost.c b/drivers/staging/bcm/CmHost.c
index 9be184f143e5..c0ee95a71343 100644
--- a/drivers/staging/bcm/CmHost.c
+++ b/drivers/staging/bcm/CmHost.c
@@ -384,7 +384,7 @@ static inline VOID CopyClassifierRuleToSF(PMINI_ADAPTER Adapter,stConvergenceSLT
 		}
 		if(psfCSType->cCPacketClassificationRule.u8Protocol == 0)
 		{
-			//we didnt get protocol field filled in by the BS
+			//we didn't get protocol field filled in by the BS
 			pstClassifierEntry->ucProtocolLength=0;
 		}
 		else
@@ -879,7 +879,7 @@ static VOID CopyToAdapter( register PMINI_ADAPTER Adapter,		/**<Pointer to the A
 
 						/*
 							Passing the argument u8PHSI instead of clsid. Because for DL with no classifier rule,
-							clsid will be zero hence we cant have multiple PHS rules for the same SF.
+							clsid will be zero hence we can't have multiple PHS rules for the same SF.
 							To support multiple PHS rule, passing u8PHSI.
 						*/
 
@@ -1103,7 +1103,7 @@ static VOID DumpCmControlPacket(PVOID pvBuffer)
 	BCM_DEBUG_PRINT( Adapter,DBG_TYPE_OTHERS, DUMP_CONTROL, DBG_LVL_ALL,  "u8TrafficIndicationPreference	: 0x%X",
 		pstAddIndication->sfAuthorizedSet.u8TrafficIndicationPreference);
 
-	BCM_DEBUG_PRINT( Adapter,DBG_TYPE_OTHERS, DUMP_CONTROL, DBG_LVL_ALL,  " Total Classifiers Recieved		: 0x%X",pstAddIndication->sfAuthorizedSet.u8TotalClassifiers);
+	BCM_DEBUG_PRINT( Adapter,DBG_TYPE_OTHERS, DUMP_CONTROL, DBG_LVL_ALL,  " Total Classifiers Received		: 0x%X",pstAddIndication->sfAuthorizedSet.u8TotalClassifiers);
 
 	nCurClassifierCnt = pstAddIndication->sfAuthorizedSet.u8TotalClassifiers;
 
@@ -1305,7 +1305,7 @@ static VOID DumpCmControlPacket(PVOID pvBuffer)
 	BCM_DEBUG_PRINT( Adapter,DBG_TYPE_OTHERS, DUMP_CONTROL, DBG_LVL_ALL,  "u8TrafficIndicationPreference	: 0x%02X",
 		pstAddIndication->sfAdmittedSet.u8TrafficIndicationPreference);
 
-	BCM_DEBUG_PRINT( Adapter,DBG_TYPE_OTHERS, DUMP_CONTROL, DBG_LVL_ALL,  " Total Classifiers Recieved		: 0x%X",pstAddIndication->sfAdmittedSet.u8TotalClassifiers);
+	BCM_DEBUG_PRINT( Adapter,DBG_TYPE_OTHERS, DUMP_CONTROL, DBG_LVL_ALL,  " Total Classifiers Received		: 0x%X",pstAddIndication->sfAdmittedSet.u8TotalClassifiers);
 
 	nCurClassifierCnt = pstAddIndication->sfAdmittedSet.u8TotalClassifiers;
 
@@ -1502,7 +1502,7 @@ static VOID DumpCmControlPacket(PVOID pvBuffer)
 	BCM_DEBUG_PRINT( Adapter,DBG_TYPE_OTHERS, DUMP_CONTROL, DBG_LVL_ALL,  " u8TrafficIndicationPreference	: 0x%X",
 		pstAddIndication->sfActiveSet.u8TrafficIndicationPreference);
 
-	BCM_DEBUG_PRINT( Adapter,DBG_TYPE_OTHERS, DUMP_CONTROL, DBG_LVL_ALL,  " Total Classifiers Recieved		: 0x%X",pstAddIndication->sfActiveSet.u8TotalClassifiers);
+	BCM_DEBUG_PRINT( Adapter,DBG_TYPE_OTHERS, DUMP_CONTROL, DBG_LVL_ALL,  " Total Classifiers Received		: 0x%X",pstAddIndication->sfActiveSet.u8TotalClassifiers);
 
 	nCurClassifierCnt = pstAddIndication->sfActiveSet.u8TotalClassifiers;
 
@@ -1696,7 +1696,7 @@ ULONG StoreCmControlResponseMessage(PMINI_ADAPTER Adapter,PVOID pvBuffer,UINT *p
 		//No Special handling send the message as it is
 		return 1;
 	}
-	// For DSA_REQ, only upto "psfAuthorizedSet" parameter should be accessed by driver!
+	// For DSA_REQ, only up to "psfAuthorizedSet" parameter should be accessed by driver!
 
 	pstAddIndication=kmalloc(sizeof(*pstAddIndication), GFP_KERNEL);
 	if(NULL==pstAddIndication)
@@ -1788,7 +1788,7 @@ static inline stLocalSFAddIndicationAlt
 	BCM_DEBUG_PRINT( Adapter,DBG_TYPE_OTHERS, CONN_MSG, DBG_LVL_ALL, "Inside RestoreCmControlResponseMessage ");
 	/*
 	//Need to Allocate memory to contain the SUPER Large structures
-	//Our driver cant create these structures on Stack :(
+	//Our driver can't create these structures on Stack :(
 	*/
 	pstAddIndicationDest=kmalloc(sizeof(stLocalSFAddIndicationAlt), GFP_KERNEL);
 
@@ -1957,7 +1957,7 @@ INT AllocAdapterDsxBuffer(PMINI_ADAPTER Adapter)
 {
 	/*
 	//Need to Allocate memory to contain the SUPER Large structures
-	//Our driver cant create these structures on Stack
+	//Our driver can't create these structures on Stack
 	*/
 	Adapter->caDsxReqResp=kmalloc(sizeof(stLocalSFAddIndicationAlt)+LEADER_SIZE, GFP_KERNEL);
 	if(!Adapter->caDsxReqResp)
diff --git a/drivers/staging/bcm/HostMIBSInterface.h b/drivers/staging/bcm/HostMIBSInterface.h
index f17a4f13474c..e34531b638e8 100644
--- a/drivers/staging/bcm/HostMIBSInterface.h
+++ b/drivers/staging/bcm/HostMIBSInterface.h
@@ -62,7 +62,7 @@ typedef struct _S_MIBS_HOST_INFO
 	ULONG			NumDesUsed;
 	ULONG			CurrNumFreeDesc;
 	ULONG			PrevNumFreeDesc;
-	// to keep track the no of byte recieved
+	// to keep track the no of byte received
 	ULONG			PrevNumRcevBytes;
 	ULONG			CurrNumRcevBytes;
 
diff --git a/drivers/staging/bcm/IPv6Protocol.c b/drivers/staging/bcm/IPv6Protocol.c
index 91b6fbe33c91..5b4fd372ec36 100644
--- a/drivers/staging/bcm/IPv6Protocol.c
+++ b/drivers/staging/bcm/IPv6Protocol.c
@@ -287,7 +287,7 @@ static BOOLEAN MatchSrcIpv6Address(S_CLASSIFIER_RULE *pstClassifierRule,IPV6Head
 
 	for(uiLoopIndex=0;uiLoopIndex<uiCountIPSrcAddresses;uiLoopIndex+=uiIpv6AddrNoLongWords)
 	{
-		BCM_DEBUG_PRINT( Adapter,DBG_TYPE_TX, IPV6_DBG, DBG_LVL_ALL, "\n Src Ipv6 Address In Recieved Packet : \n ");
+		BCM_DEBUG_PRINT( Adapter,DBG_TYPE_TX, IPV6_DBG, DBG_LVL_ALL, "\n Src Ipv6 Address In Received Packet : \n ");
 		DumpIpv6Address(aulSrcIP);
 		BCM_DEBUG_PRINT( Adapter,DBG_TYPE_TX, IPV6_DBG, DBG_LVL_ALL, "\n Src Ipv6 Mask In Classifier Rule: \n");
 		DumpIpv6Address(&pstClassifierRule->stSrcIpAddress.ulIpv6Mask[uiLoopIndex]);
@@ -340,7 +340,7 @@ static BOOLEAN MatchDestIpv6Address(S_CLASSIFIER_RULE *pstClassifierRule,IPV6Hea
 
 	for(uiLoopIndex=0;uiLoopIndex<uiCountIPDestinationAddresses;uiLoopIndex+=uiIpv6AddrNoLongWords)
 	{
-		BCM_DEBUG_PRINT( Adapter,DBG_TYPE_TX, IPV6_DBG, DBG_LVL_ALL, "\n Destination Ipv6 Address In Recieved Packet : \n ");
+		BCM_DEBUG_PRINT( Adapter,DBG_TYPE_TX, IPV6_DBG, DBG_LVL_ALL, "\n Destination Ipv6 Address In Received Packet : \n ");
 		DumpIpv6Address(aulDestIP);
 		BCM_DEBUG_PRINT( Adapter,DBG_TYPE_TX, IPV6_DBG, DBG_LVL_ALL, "\n Destination Ipv6 Mask In Classifier Rule: \n");
 		DumpIpv6Address(&pstClassifierRule->stDestIpAddress.ulIpv6Mask[uiLoopIndex]);
diff --git a/drivers/staging/bcm/InterfaceIdleMode.c b/drivers/staging/bcm/InterfaceIdleMode.c
index bf5c0ad86610..96fa4ead7930 100644
--- a/drivers/staging/bcm/InterfaceIdleMode.c
+++ b/drivers/staging/bcm/InterfaceIdleMode.c
@@ -11,7 +11,7 @@ Input parameters:		IN PMINI_ADAPTER Adapter   - Miniport Adapter Context
 
 
 Return:				BCM_STATUS_SUCCESS - If Wakeup of the HW Interface was successful.
-						Other           - If an error occured.
+						Other           - If an error occurred.
 */
 
 
@@ -26,7 +26,7 @@ Input parameters:		IN PMINI_ADAPTER Adapter   - Miniport Adapter Context
 
 
 Return:				BCM_STATUS_SUCCESS - If Idle mode response related HW configuration was successful.
-						Other           - If an error occured.
+						Other           - If an error occurred.
 */
 
 /*
diff --git a/drivers/staging/bcm/InterfaceIsr.c b/drivers/staging/bcm/InterfaceIsr.c
index 220ff922bdcf..67719d57256d 100644
--- a/drivers/staging/bcm/InterfaceIsr.c
+++ b/drivers/staging/bcm/InterfaceIsr.c
@@ -80,8 +80,8 @@ static void read_int_callback(struct urb *urb/*, struct pt_regs *regs*/)
 		}
 		case -EINPROGRESS:
 		{
-			//This situation may happend when URBunlink is used. for detail check usb_unlink_urb documentation.
-			BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, INTF_INIT, DBG_LVL_ALL,"Impossibe condition has occured... something very bad is going on");
+			//This situation may happened when URBunlink is used. for detail check usb_unlink_urb documentation.
+			BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, INTF_INIT, DBG_LVL_ALL,"Impossibe condition has occurred... something very bad is going on");
 			break ;
 			//return;
 		}
diff --git a/drivers/staging/bcm/InterfaceRx.c b/drivers/staging/bcm/InterfaceRx.c
index 533f8ebe0f84..806ef5d18522 100644
--- a/drivers/staging/bcm/InterfaceRx.c
+++ b/drivers/staging/bcm/InterfaceRx.c
@@ -34,7 +34,7 @@ GetBulkInRcb(PS_INTERFACE_ADAPTER psIntfAdapter)
 	return pRcb;
 }
 
-/*this is receive call back - when pkt avilable for receive (BULK IN- end point)*/
+/*this is receive call back - when pkt available for receive (BULK IN- end point)*/
 static void read_bulk_callback(struct urb *urb)
 {
 	struct sk_buff *skb = NULL;
@@ -123,7 +123,7 @@ static void read_bulk_callback(struct urb *urb)
 	if((ntohs(pLeader->Vcid) == VCID_CONTROL_PACKET) ||
 	    (!(pLeader->Status >= 0x20  &&  pLeader->Status <= 0x3F)))
 	{
-	    BCM_DEBUG_PRINT(psIntfAdapter->psAdapter,DBG_TYPE_RX, RX_CTRL, DBG_LVL_ALL, "Recived control pkt...");
+	    BCM_DEBUG_PRINT(psIntfAdapter->psAdapter,DBG_TYPE_RX, RX_CTRL, DBG_LVL_ALL, "Received control pkt...");
 		*(PUSHORT)skb->data = pLeader->Status;
        	memcpy(skb->data+sizeof(USHORT), urb->transfer_buffer +
 			(sizeof(LEADER)), pLeader->PLength);
@@ -142,7 +142,7 @@ static void read_bulk_callback(struct urb *urb)
 		  * Data Packet, Format a proper Ethernet Header
         	  * and give it to the stack
 		  */
-        BCM_DEBUG_PRINT(psIntfAdapter->psAdapter,DBG_TYPE_RX, RX_DATA, DBG_LVL_ALL, "Recived Data pkt...");
+        BCM_DEBUG_PRINT(psIntfAdapter->psAdapter,DBG_TYPE_RX, RX_DATA, DBG_LVL_ALL, "Received Data pkt...");
 		skb_reserve(skb, 2 + SKB_RESERVE_PHS_BYTES);
 		memcpy(skb->data+ETH_HLEN, (PUCHAR)urb->transfer_buffer + sizeof(LEADER), pLeader->PLength);
 		skb->dev = Adapter->dev;
@@ -151,7 +151,7 @@ static void read_bulk_callback(struct urb *urb)
 		skb_put (skb, pLeader->PLength + ETH_HLEN);
 		Adapter->PackInfo[QueueIndex].uiTotalRxBytes+=pLeader->PLength;
 		Adapter->PackInfo[QueueIndex].uiThisPeriodRxBytes+= pLeader->PLength;
-        BCM_DEBUG_PRINT(psIntfAdapter->psAdapter,DBG_TYPE_RX, RX_DATA, DBG_LVL_ALL, "Recived Data pkt of len :0x%X", pLeader->PLength);
+        BCM_DEBUG_PRINT(psIntfAdapter->psAdapter,DBG_TYPE_RX, RX_DATA, DBG_LVL_ALL, "Received Data pkt of len :0x%X", pLeader->PLength);
 
 		if(netif_running(Adapter->dev))
 		{
@@ -237,7 +237,7 @@ Input parameters:		IN PMINI_ADAPTER Adapter   - Miniport Adapter Context
 
 
 Return:				TRUE  - If Rx was successful.
-					Other - If an error occured.
+					Other - If an error occurred.
 */
 
 BOOLEAN InterfaceRx (PS_INTERFACE_ADAPTER psIntfAdapter)
diff --git a/drivers/staging/bcm/Ioctl.h b/drivers/staging/bcm/Ioctl.h
index e4f8eb70be1e..f859cf1c47b0 100644
--- a/drivers/staging/bcm/Ioctl.h
+++ b/drivers/staging/bcm/Ioctl.h
@@ -241,7 +241,7 @@ typedef struct bulkwrmbuffer
 
 typedef enum _FLASH2X_SECTION_VAL
 {
-	NO_SECTION_VAL = 0, //no section is choosen when absolute offset is given for RD/WR
+	NO_SECTION_VAL = 0, //no section is chosen when absolute offset is given for RD/WR
 	ISO_IMAGE1,
 	ISO_IMAGE2,
 	DSD0,
diff --git a/drivers/staging/bcm/LeakyBucket.c b/drivers/staging/bcm/LeakyBucket.c
index f4cf41c0e46b..a55d4228e8e0 100644
--- a/drivers/staging/bcm/LeakyBucket.c
+++ b/drivers/staging/bcm/LeakyBucket.c
@@ -213,7 +213,7 @@ static VOID CheckAndSendPacketFromIndex(PMINI_ADAPTER Adapter, PacketInfo *psSF)
 				BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, TX_PACKETS, DBG_LVL_ALL, "For Queue: %zd\n", psSF-Adapter->PackInfo);
 				BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, TX_PACKETS, DBG_LVL_ALL, "\nAvailable Tokens = %d required = %d\n",
 					psSF->uiCurrentTokenCount, iPacketLen);
-				//this part indicates that becuase of non-availability of the tokens
+				//this part indicates that because of non-availability of the tokens
 				//pkt has not been send out hence setting the pending flag indicating the host to send it out
 				//first next iteration  .
 				psSF->uiPendedLast = TRUE;
diff --git a/drivers/staging/bcm/Misc.c b/drivers/staging/bcm/Misc.c
index d624f35d0551..c5003b62234c 100644
--- a/drivers/staging/bcm/Misc.c
+++ b/drivers/staging/bcm/Misc.c
@@ -602,7 +602,7 @@ VOID LinkControlResponseMessage(PMINI_ADAPTER Adapter,PUCHAR pucBuffer)
 				Adapter->LinkStatus=LINKUP_DONE;
 				Adapter->bPHSEnabled = *(pucBuffer+3);
                	Adapter->bETHCSEnabled = *(pucBuffer+4) & ETH_CS_MASK;
-				BCM_DEBUG_PRINT(Adapter,DBG_TYPE_PRINTK, 0, 0, "PHS Support Status Recieved In LinkUp Ack : %x \n",Adapter->bPHSEnabled);
+				BCM_DEBUG_PRINT(Adapter,DBG_TYPE_PRINTK, 0, 0, "PHS Support Status Received In LinkUp Ack : %x \n",Adapter->bPHSEnabled);
 				if((FALSE == Adapter->bShutStatus)&&
 					(FALSE == Adapter->IdleMode))
 				{
@@ -1153,7 +1153,7 @@ int InitCardAndDownloadFirmware(PMINI_ADAPTER ps_adapter)
 
 	/*
      * 1. If the LED Settings fails, do not stop and do the Firmware download.
-     * 2. This init would happend only if the cfg file is present, else
+     * 2. This init would happened only if the cfg file is present, else
      *    call from the ioctl context.
      */
 
@@ -1185,7 +1185,7 @@ int InitCardAndDownloadFirmware(PMINI_ADAPTER ps_adapter)
 		status = PropagateCalParamsFromFlashToMemory(ps_adapter);
 		if(status)
 		{
-			BCM_DEBUG_PRINT(ps_adapter,DBG_TYPE_INITEXIT, MP_INIT, DBG_LVL_ALL," Propogation of Cal param failed .." );
+			BCM_DEBUG_PRINT(ps_adapter,DBG_TYPE_INITEXIT, MP_INIT, DBG_LVL_ALL," Propagation of Cal param failed .." );
 			goto OUT;
 		}
 	}
diff --git a/drivers/staging/bcm/Qos.c b/drivers/staging/bcm/Qos.c
index feade9451b2e..c97020f0fb6a 100644
--- a/drivers/staging/bcm/Qos.c
+++ b/drivers/staging/bcm/Qos.c
@@ -727,7 +727,7 @@ static BOOLEAN EthCSMatchVLANRules(S_CLASSIFIER_RULE *pstClassifierRule,struct s
 
 	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL,  "%s  CLS UserPrio:%x CLS VLANID:%x\n",__FUNCTION__,ntohs(*((USHORT *)pstClassifierRule->usUserPriority)),pstClassifierRule->usVLANID);
 
-	/* In case FW didn't recieve the TLV, the priority field should be ignored */
+	/* In case FW didn't receive the TLV, the priority field should be ignored */
 	if(pstClassifierRule->usValidityBitMap & (1<<PKT_CLASSIFICATION_USER_PRIORITY_VALID))
 	{
 		if(pstEthCsPktInfo->eNwpktEthFrameType!=eEth802QVLANFrame)
diff --git a/drivers/staging/bcm/cntrl_SignalingInterface.h b/drivers/staging/bcm/cntrl_SignalingInterface.h
index 890778450a86..ab131806e2c9 100644
--- a/drivers/staging/bcm/cntrl_SignalingInterface.h
+++ b/drivers/staging/bcm/cntrl_SignalingInterface.h
@@ -21,7 +21,7 @@
 #define VENDOR_PHS_PARAM_LENGTH 10
 #define MAX_NUM_ACTIVE_BS 10
 #define AUTH_TOKEN_LENGTH	10
-#define NUM_HARQ_CHANNELS	16	//Changed from 10 to 16 to accomodate all HARQ channels
+#define NUM_HARQ_CHANNELS	16	//Changed from 10 to 16 to accommodate all HARQ channels
 #define VENDOR_CLASSIFIER_PARAM_LENGTH 1 //Changed the size to 1 byte since we dnt use it
 #define  VENDOR_SPECIF_QOS_PARAM 1
 #define VENDOR_PHS_PARAM_LENGTH	10
@@ -109,13 +109,13 @@ typedef struct _stPhsRuleSI {
     B_UINT8                         u8PHSI;
 	/**  PHSF Length Of The Service Flow*/
     B_UINT8                         u8PHSFLength;
-    /** String of bytes containing header information to be supressed by the sending CS and reconstructed by the receiving CS*/
+    /** String of bytes containing header information to be suppressed by the sending CS and reconstructed by the receiving CS*/
     B_UINT8                         u8PHSF[MAX_PHS_LENGTHS];
 	/**  PHSM Length Of The Service Flow*/
     B_UINT8                         u8PHSMLength;
 	/**  PHS Mask for the SF*/
     B_UINT8                         u8PHSM[MAX_PHS_LENGTHS];
-	/**  8bit Total number of bytes to be supressed for the Service Flow*/
+	/**  8bit Total number of bytes to be suppressed for the Service Flow*/
     B_UINT8                         u8PHSS;
 	/**  8bit Indicates whether or not Packet Header contents need to be verified prior to supression */
     B_UINT8                         u8PHSV;
diff --git a/drivers/staging/bcm/nvm.c b/drivers/staging/bcm/nvm.c
index c7292373a65f..4da5b7b54a1a 100644
--- a/drivers/staging/bcm/nvm.c
+++ b/drivers/staging/bcm/nvm.c
@@ -313,7 +313,7 @@ INT ReadMacAddressFromNVM(PMINI_ADAPTER Adapter)
 //		uiNumBytes - Number of bytes to be read from the EEPROM.
 //
 // Returns:
-//		OSAL_STATUS_SUCCESS - if EEPROM read is successfull.
+//		OSAL_STATUS_SUCCESS - if EEPROM read is successful.
 //		<FAILURE>			- if failed.
 //-----------------------------------------------------------------------------
 
@@ -431,7 +431,7 @@ INT BeceemEEPROMBulkRead(
 //		uiNumBytes - Number of bytes to be read from the FLASH.
 //
 // Returns:
-//		OSAL_STATUS_SUCCESS - if FLASH read is successfull.
+//		OSAL_STATUS_SUCCESS - if FLASH read is successful.
 //		<FAILURE>			- if failed.
 //-----------------------------------------------------------------------------
 
@@ -1174,7 +1174,7 @@ static INT BeceemFlashBulkWrite(
 	if(NULL == pTempBuff)
 		goto BeceemFlashBulkWrite_EXIT;
 //
-// check if the data to be written is overlapped accross sectors
+// check if the data to be written is overlapped across sectors
 //
 	if(uiOffset+uiNumBytes < uiSectBoundary)
 	{
@@ -1390,7 +1390,7 @@ static INT BeceemFlashBulkWriteStatus(
 		goto BeceemFlashBulkWriteStatus_EXIT;
 
 //
-// check if the data to be written is overlapped accross sectors
+// check if the data to be written is overlapped across sectors
 //
 	if(uiOffset+uiNumBytes < uiSectBoundary)
 	{
@@ -2020,7 +2020,7 @@ INT BeceemEEPROMBulkWrite(
 //		uiNumBytes - Number of bytes to be read from the NVM.
 //
 // Returns:
-//		OSAL_STATUS_SUCCESS - if NVM read is successfull.
+//		OSAL_STATUS_SUCCESS - if NVM read is successful.
 //		<FAILURE>			- if failed.
 //-----------------------------------------------------------------------------
 
@@ -2083,7 +2083,7 @@ INT BeceemNVMRead(
 //		uiNumBytes - Number of bytes to be written..
 //
 // Returns:
-//		OSAL_STATUS_SUCCESS - if NVM write is successfull.
+//		OSAL_STATUS_SUCCESS - if NVM write is successful.
 //		<FAILURE>			- if failed.
 //-----------------------------------------------------------------------------
 
@@ -2218,7 +2218,7 @@ INT BeceemNVMWrite(
 //          uiSectorSize - sector size
 //
 // Returns:
-//		OSAL_STATUS_SUCCESS - if NVM write is successfull.
+//		OSAL_STATUS_SUCCESS - if NVM write is successful.
 //		<FAILURE>			- if failed.
 //-----------------------------------------------------------------------------
 
@@ -2430,7 +2430,7 @@ INT BcmInitNVM(PMINI_ADAPTER ps_adapter)
 *Input Parameter:
 *		Adapter data structure
 *Return Value :
-*		0. means sucess;
+*		0. means success;
 */
 /***************************************************************************/
 
@@ -2998,7 +2998,7 @@ INT BcmGetSectionValStartOffset(PMINI_ADAPTER Adapter, FLASH2X_SECTION_VAL eFlas
 	/*
 	*	Considering all the section for which end offset can be calculated or directly given
 	*	in CS Structure. if matching case does not exist, return STATUS_FAILURE indicating section
-	*	endoffset can't be calculated or given in CS Stucture.
+	*	endoffset can't be calculated or given in CS Structure.
 	*/
 
 	INT SectStartOffset = 0 ;
@@ -3173,7 +3173,7 @@ INT BcmGetSectionValEndOffset(PMINI_ADAPTER Adapter, FLASH2X_SECTION_VAL eFlash2
 *	@uiNumBytes : Number of Bytes for Read
 *
 *	Return value:-
-*		return true on sucess and STATUS_FAILURE on fail.
+*		return true on success and STATUS_FAILURE on fail.
 */
 
 INT BcmFlash2xBulkRead(
@@ -3241,7 +3241,7 @@ INT BcmFlash2xBulkRead(
 *	@uiNumBytes : Number of Bytes for Write
 *
 *	Return value:-
-*		return true on sucess and STATUS_FAILURE on fail.
+*		return true on success and STATUS_FAILURE on fail.
 *
 */
 
@@ -3308,7 +3308,7 @@ INT BcmFlash2xBulkWrite(
 *	@Adapter :-Drivers private Data Structure
 *
 *	Return Value:-
-*		Return STATUS_SUCESS if get sucess in setting the right DSD else negaive error code
+*		Return STATUS_SUCESS if get success in setting the right DSD else negaive error code
 *
 **/
 static INT BcmGetActiveDSD(PMINI_ADAPTER Adapter)
@@ -3384,7 +3384,7 @@ static INT BcmGetActiveISO(PMINI_ADAPTER Adapter)
 *	@uiOffset : Offset provided in the Flash
 *
 *	Return Value:-
-*	Sucess:-TRUE ,  offset is writable
+*	Success:-TRUE ,  offset is writable
 *	Failure:-FALSE, offset is RO
 *
 **/
@@ -3441,7 +3441,7 @@ static INT BcmDumpFlash2xSectionBitMap(PFLASH2X_BITMAP psFlash2xBitMap)
 	@Adapter:-Driver private Data Structure
 *
 *	Return value:-
-*	Sucess:- STATUS_SUCESS
+*	Success:- STATUS_SUCESS
 *	Failure:- negative error code
 **/
 
@@ -3783,7 +3783,7 @@ INT BcmSetActiveSection(PMINI_ADAPTER Adapter, FLASH2X_SECTION_VAL eFlash2xSectV
 					// This is a SPECIAL Case which will only happen if the current highest priority ISO has priority value = 0x7FFFFFFF.
 					// We will write 1 to the current Highest priority ISO And then shall increase the priority of the requested ISO
 					// by user
-					BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, NVM_RW, DBG_LVL_ALL, "SectImagePriority wraparound happend, eFlash2xSectVal: 0x%x\n",eFlash2xSectVal);
+					BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, NVM_RW, DBG_LVL_ALL, "SectImagePriority wraparound happened, eFlash2xSectVal: 0x%x\n",eFlash2xSectVal);
 					SectImagePriority = htonl(0x1);
 					Status = BcmFlash2xBulkWrite(Adapter,
 								&SectImagePriority,
@@ -3853,7 +3853,7 @@ INT BcmSetActiveSection(PMINI_ADAPTER Adapter, FLASH2X_SECTION_VAL eFlash2xSectV
 					// This is a SPECIAL Case which will only happen if the current highest priority DSD has priority value = 0x7FFFFFFF.
 					// We will write 1 to the current Highest priority DSD And then shall increase the priority of the requested DSD
 					// by user
-					BCM_DEBUG_PRINT(Adapter,DBG_TYPE_PRINTK, NVM_RW, DBG_LVL_ALL, "SectImagePriority wraparound happend, eFlash2xSectVal: 0x%x\n",eFlash2xSectVal);
+					BCM_DEBUG_PRINT(Adapter,DBG_TYPE_PRINTK, NVM_RW, DBG_LVL_ALL, "SectImagePriority wraparound happened, eFlash2xSectVal: 0x%x\n",eFlash2xSectVal);
 					SectImagePriority = htonl(0x1);
 
 					Status = BcmFlash2xBulkWrite(Adapter,
@@ -4119,7 +4119,7 @@ INT BcmCopyISO(PMINI_ADAPTER Adapter, FLASH2X_COPY_SECTION sCopySectStrut)
 												MAX_RW_SIZE);
 				IsThisHeaderSector = FALSE ;
 			}
-			//substracting the written Data
+			//subtracting the written Data
 			uiTotalDataToCopy = uiTotalDataToCopy - Adapter->uiSectorSize ;
 		}
 
@@ -4250,7 +4250,7 @@ INT BcmCopyISO(PMINI_ADAPTER Adapter, FLASH2X_COPY_SECTION sCopySectStrut)
 				IsThisHeaderSector = FALSE ;
 			}
 
-			//substracting the written Data
+			//subtracting the written Data
 			uiTotalDataToCopy = uiTotalDataToCopy - Adapter->uiSectorSize ;
 		}
 
@@ -4268,7 +4268,7 @@ BcmFlash2xCorruptSig : this API is used to corrupt the written sig in Bcm Header
 @eFlash2xSectionVal :- Flash section val which has header
 
 Return Value :-
-	Sucess :- If Section is present and writable, corrupt the sig and return STATUS_SUCCESS
+	Success :- If Section is present and writable, corrupt the sig and return STATUS_SUCCESS
 	Failure :-Return negative error code
 
 
@@ -4301,7 +4301,7 @@ BcmFlash2xWriteSig :-this API is used to Write the sig if requested Section has
 @eFlashSectionVal :- Flash section val which has header
 
 Return Value :-
-	Sucess :- If Section is present and writable write the sig and return STATUS_SUCCESS
+	Success :- If Section is present and writable write the sig and return STATUS_SUCCESS
 	Failure :-Return negative error code
 
 **/
@@ -4504,7 +4504,7 @@ BcmCopySection :- This API is used to copy the One section in another. Both sect
 			     in case of numofBytes  equal zero complete section will be copied.
 
 Return Values-
-	Sucess : Return STATUS_SUCCESS
+	Success : Return STATUS_SUCCESS
 	Faillure :- return negative error code
 
 **/
@@ -4621,7 +4621,7 @@ SaveHeaderIfPresent :- This API is use to Protect the Header in case of Header S
 @uiOffset :- Flash offset that has to be written.
 
 Return value :-
-	Sucess :- On sucess return STATUS_SUCCESS
+	Success :- On success return STATUS_SUCCESS
 	Faillure :- Return negative error code
 
 **/
@@ -4634,7 +4634,7 @@ INT SaveHeaderIfPresent(PMINI_ADAPTER Adapter, PUCHAR pBuff, UINT uiOffset)
 	UINT uiSectAlignAddr = 0;
 	UINT sig = 0;
 
-	//making the offset sector alligned
+	//making the offset sector aligned
 	uiSectAlignAddr = uiOffset & ~(Adapter->uiSectorSize - 1);
 
 
@@ -4643,7 +4643,7 @@ INT SaveHeaderIfPresent(PMINI_ADAPTER Adapter, PUCHAR pBuff, UINT uiOffset)
 	(uiSectAlignAddr == BcmGetSectionValEndOffset(Adapter,DSD0)- Adapter->uiSectorSize))
 	{
 
-		//offset from the sector boundry having the header map
+		//offset from the sector boundary having the header map
 		offsetToProtect = Adapter->psFlash2xCSInfo->OffsetFromDSDStartForDSDHeader % Adapter->uiSectorSize;
 		HeaderSizeToProtect = sizeof(DSD_HEADER);
 		bHasHeader = TRUE ;
@@ -4697,7 +4697,7 @@ BcmDoChipSelect : This will selcet the appropriate chip for writing.
 @Adapater :- Bcm Driver Private Data Structure
 
 OutPut:-
-	Select the Appropriate chip and retrn status Sucess
+	Select the Appropriate chip and retrn status Success
 **/
 static INT BcmDoChipSelect(PMINI_ADAPTER Adapter, UINT offset)
 {
@@ -5086,7 +5086,7 @@ static INT CorruptDSDSig(PMINI_ADAPTER Adapter, FLASH2X_SECTION_VAL eFlash2xSect
 	{
 		if(IsSectionWritable(Adapter,eFlash2xSectionVal) != TRUE)
 		{
-			BCM_DEBUG_PRINT(Adapter,DBG_TYPE_PRINTK, 0, 0,"Section is not Writable...Hence cant Corrupt signature");
+			BCM_DEBUG_PRINT(Adapter,DBG_TYPE_PRINTK, 0, 0,"Section is not Writable...Hence can't Corrupt signature");
 			return SECTOR_IS_NOT_WRITABLE;
 		}
 	}
@@ -5155,7 +5155,7 @@ static INT CorruptISOSig(PMINI_ADAPTER Adapter, FLASH2X_SECTION_VAL eFlash2xSect
 
 	if(IsSectionWritable(Adapter,eFlash2xSectionVal) != TRUE)
 	{
-		BCM_DEBUG_PRINT(Adapter,DBG_TYPE_PRINTK, 0, 0,"Section is not Writable...Hence cant Corrupt signature");
+		BCM_DEBUG_PRINT(Adapter,DBG_TYPE_PRINTK, 0, 0,"Section is not Writable...Hence can't Corrupt signature");
 		return SECTOR_IS_NOT_WRITABLE;
 	}
 
diff --git a/drivers/staging/brcm80211/README b/drivers/staging/brcm80211/README
index 99e67669f26b..f8facb0786ec 100644
--- a/drivers/staging/brcm80211/README
+++ b/drivers/staging/brcm80211/README
@@ -71,7 +71,7 @@ the driver. The devices use a single worldwide regulatory domain, with channels
 passive operation. Transmission on those channels is suppressed until
 appropriate other traffic is observed on those channels.
 
-Within the driver, we use the ficticious country code "X2" to represent this
+Within the driver, we use the fictitious country code "X2" to represent this
 worldwide regulatory domain. There is currently no interface to configure a
 different domain.
 
diff --git a/drivers/staging/brcm80211/brcmfmac/bcmsdh_linux.c b/drivers/staging/brcm80211/brcmfmac/bcmsdh_linux.c
index e3556ff43bb9..ac5bbc8722e5 100644
--- a/drivers/staging/brcm80211/brcmfmac/bcmsdh_linux.c
+++ b/drivers/staging/brcm80211/brcmfmac/bcmsdh_linux.c
@@ -341,7 +341,7 @@ int bcmsdh_register_oob_intr(void *dhdp)
 		if (error)
 			return -ENODEV;
 
-		set_irq_wake(sdhcinfo->oob_irq, 1);
+		irq_set_irq_wake(sdhcinfo->oob_irq, 1);
 		sdhcinfo->oob_irq_registered = true;
 	}
 
@@ -352,7 +352,7 @@ void bcmsdh_unregister_oob_intr(void)
 {
 	SDLX_MSG(("%s: Enter\n", __func__));
 
-	set_irq_wake(sdhcinfo->oob_irq, 0);
+	irq_set_irq_wake(sdhcinfo->oob_irq, 0);
 	disable_irq(sdhcinfo->oob_irq);	/* just in case.. */
 	free_irq(sdhcinfo->oob_irq, NULL);
 	sdhcinfo->oob_irq_registered = false;
diff --git a/drivers/staging/brcm80211/brcmfmac/bcmsdh_sdmmc.c b/drivers/staging/brcm80211/brcmfmac/bcmsdh_sdmmc.c
index 65313fa0cf4a..71c3571ee143 100644
--- a/drivers/staging/brcm80211/brcmfmac/bcmsdh_sdmmc.c
+++ b/drivers/staging/brcm80211/brcmfmac/bcmsdh_sdmmc.c
@@ -264,7 +264,7 @@ extern SDIOH_API_RC sdioh_disable_func_intr(void)
 }
 #endif				/* defined(OOB_INTR_ONLY) && defined(HW_OOB) */
 
-/* Configure callback to client when we recieve client interrupt */
+/* Configure callback to client when we receive client interrupt */
 extern SDIOH_API_RC
 sdioh_interrupt_register(sdioh_info_t *sd, sdioh_cb_fn_t fn, void *argh)
 {
diff --git a/drivers/staging/brcm80211/brcmfmac/dhd_custom_gpio.c b/drivers/staging/brcm80211/brcmfmac/dhd_custom_gpio.c
index cbfa1c1b7059..1cf6c5dc2bb7 100644
--- a/drivers/staging/brcm80211/brcmfmac/dhd_custom_gpio.c
+++ b/drivers/staging/brcm80211/brcmfmac/dhd_custom_gpio.c
@@ -46,7 +46,7 @@ extern int sdioh_mmc_irq(int irq);
 #include <mach/gpio.h>
 #endif
 
-/* Customer specific Host GPIO defintion  */
+/* Customer specific Host GPIO definition  */
 static int dhd_oob_gpio_num = -1;	/* GG 19 */
 
 module_param(dhd_oob_gpio_num, int, 0644);
diff --git a/drivers/staging/brcm80211/brcmfmac/dhd_linux.c b/drivers/staging/brcm80211/brcmfmac/dhd_linux.c
index 02c6d446934c..dd0375793875 100644
--- a/drivers/staging/brcm80211/brcmfmac/dhd_linux.c
+++ b/drivers/staging/brcm80211/brcmfmac/dhd_linux.c
@@ -478,7 +478,7 @@ static int dhd_set_suspend(int value, dhd_pub_t *dhd)
 			dhd_set_packet_filter(1, dhd);
 
 			/* if dtim skip setup as default force it
-			 * to wake each thrid dtim
+			 * to wake each third dtim
 			 * for better power saving.
 			 * Note that side effect is chance to miss BC/MC
 			 * packet
diff --git a/drivers/staging/brcm80211/brcmfmac/dhd_sdio.c b/drivers/staging/brcm80211/brcmfmac/dhd_sdio.c
index 106627040db0..464f52af1315 100644
--- a/drivers/staging/brcm80211/brcmfmac/dhd_sdio.c
+++ b/drivers/staging/brcm80211/brcmfmac/dhd_sdio.c
@@ -3659,7 +3659,7 @@ static uint dhdsdio_readframes(dhd_bus_t *bus, uint maxframes, bool *finished)
 			 * control pkt receives.
 			 * Later we use buffer-poll for data as well
 			 * as control packets.
-			 * This is required becuase dhd receives full
+			 * This is required because dhd receives full
 			 * frame in gSPI unlike SDIO.
 			 * After the frame is received we have to
 			 * distinguish whether it is data
@@ -3744,7 +3744,7 @@ static uint dhdsdio_readframes(dhd_bus_t *bus, uint maxframes, bool *finished)
 					bus->dhd->rx_errors++;
 					dhd_os_sdunlock_rxq(bus->dhd);
 					/* Force retry w/normal header read.
-					 * Don't attemp NAK for
+					 * Don't attempt NAK for
 					 * gSPI
 					 */
 					dhdsdio_rxfail(bus, true,
diff --git a/drivers/staging/brcm80211/brcmsmac/wl_mac80211.c b/drivers/staging/brcm80211/brcmsmac/wl_mac80211.c
index 774b4e916b29..c1b07ae31674 100644
--- a/drivers/staging/brcm80211/brcmsmac/wl_mac80211.c
+++ b/drivers/staging/brcm80211/brcmsmac/wl_mac80211.c
@@ -1079,7 +1079,7 @@ static int ieee_hw_init(struct ieee80211_hw *hw)
 	 */
 	hw->max_rates = 2;	/* Primary rate and 1 fallback rate */
 
-	hw->channel_change_time = 7 * 1000;	/* channel change time is dependant on chip and band  */
+	hw->channel_change_time = 7 * 1000;	/* channel change time is dependent on chip and band  */
 	hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION);
 
 	hw->rate_control_algorithm = "minstrel_ht";
diff --git a/drivers/staging/brcm80211/brcmsmac/wlc_ampdu.c b/drivers/staging/brcm80211/brcmsmac/wlc_ampdu.c
index c6cdcd940956..f00865957881 100644
--- a/drivers/staging/brcm80211/brcmsmac/wlc_ampdu.c
+++ b/drivers/staging/brcm80211/brcmsmac/wlc_ampdu.c
@@ -89,7 +89,7 @@ u32 wl_ampdu_dbg =
 /* structure to hold tx fifo information and pre-loading state
  * counters specific to tx underflows of ampdus
  * some counters might be redundant with the ones in wlc or ampdu structures.
- * This allows to maintain a specific state independantly of
+ * This allows to maintain a specific state independently of
  * how often and/or when the wlc counters are updated.
  */
 typedef struct wlc_fifo_info {
@@ -265,7 +265,7 @@ static void scb_ampdu_update_config(struct ampdu_info *ampdu, struct scb *scb)
 
 	scb_ampdu->max_pdu = (u8) ampdu->wlc->pub->tunables->ampdunummpdu;
 
-	/* go back to legacy size if some preloading is occuring */
+	/* go back to legacy size if some preloading is occurring */
 	for (i = 0; i < NUM_FFPLD_FIFO; i++) {
 		if (ampdu->fifo_tb[i].ampdu_pld_size > FFPLD_PLD_INCR)
 			scb_ampdu->max_pdu = AMPDU_NUM_MPDU_LEGACY;
@@ -406,7 +406,7 @@ static int wlc_ffpld_check_txfunfl(struct wlc_info *wlc, int fid)
 		/*
 		   compute a new dma xfer rate for max_mpdu @ max mcs.
 		   This is the minimum dma rate that
-		   can acheive no unferflow condition for the current mpdu size.
+		   can achieve no unferflow condition for the current mpdu size.
 		 */
 		/* note : we divide/multiply by 100 to avoid integer overflows */
 		fifo->dmaxferrate =
diff --git a/drivers/staging/brcm80211/brcmsmac/wlc_bmac.c b/drivers/staging/brcm80211/brcmsmac/wlc_bmac.c
index 5a96dc3cdb36..4b6e181c7dc9 100644
--- a/drivers/staging/brcm80211/brcmsmac/wlc_bmac.c
+++ b/drivers/staging/brcm80211/brcmsmac/wlc_bmac.c
@@ -1915,7 +1915,7 @@ void wlc_bmac_phy_reset(struct wlc_hw_info *wlc_hw)
 
 	phy_bw_clkbits = wlc_phy_clk_bwbits(wlc_hw->band->pi);
 
-	/* Specfic reset sequence required for NPHY rev 3 and 4 */
+	/* Specific reset sequence required for NPHY rev 3 and 4 */
 	if (WLCISNPHY(wlc_hw->band) && NREV_GE(wlc_hw->band->phyrev, 3) &&
 	    NREV_LE(wlc_hw->band->phyrev, 4)) {
 		/* Set the PHY bandwidth */
diff --git a/drivers/staging/brcm80211/brcmsmac/wlc_main.c b/drivers/staging/brcm80211/brcmsmac/wlc_main.c
index 639b5d7c9603..ab7ab850e199 100644
--- a/drivers/staging/brcm80211/brcmsmac/wlc_main.c
+++ b/drivers/staging/brcm80211/brcmsmac/wlc_main.c
@@ -6283,7 +6283,7 @@ wlc_d11hdrs_mac80211(struct wlc_info *wlc, struct ieee80211_hw *hw,
 	       ((preamble_type[1] == WLC_MM_PREAMBLE) ==
 		(txh->MModeFbrLen != 0)));
 
-	ac = wme_fifo2ac[queue];
+	ac = skb_get_queue_mapping(p);
 	if (SCB_WME(scb) && qos && wlc->edcf_txop[ac]) {
 		uint frag_dur, dur, dur_fallback;
 
@@ -6919,8 +6919,7 @@ prep_mac80211_status(struct wlc_info *wlc, d11rxhdr_t *rxh, struct sk_buff *p,
 		preamble = 0;
 		if (IS_CCK(rspec)) {
 			if (rxh->PhyRxStatus_0 & PRXS0_SHORTH)
-				WL_ERROR("Short CCK\n");
-			rx_status->flag |= RX_FLAG_SHORTPRE;
+				rx_status->flag |= RX_FLAG_SHORTPRE;
 		} else if (IS_OFDM(rspec)) {
 			rx_status->flag |= RX_FLAG_SHORTPRE;
 		} else {
@@ -7079,10 +7078,8 @@ void BCMFASTPATH wlc_recv(struct wlc_info *wlc, struct sk_buff *p)
 	if (ieee80211_is_probe_req(h->frame_control))
 		goto toss;
 
-	if (is_amsdu) {
-		WL_ERROR("%s: is_amsdu causing toss\n", __func__);
+	if (is_amsdu)
 		goto toss;
-	}
 
 	wlc_recvctl(wlc, rxh, p);
 	return;
@@ -8295,7 +8292,7 @@ wlc_txflowcontrol_prio_isset(struct wlc_info *wlc, struct wlc_txq_info *q,
 	return (q->stopped & prio_mask) == prio_mask;
 }
 
-/* propogate the flow control to all interfaces using the given tx queue */
+/* propagate the flow control to all interfaces using the given tx queue */
 void wlc_txflowcontrol(struct wlc_info *wlc, struct wlc_txq_info *qi,
 		       bool on, int prio)
 {
@@ -8462,7 +8459,7 @@ static void wlc_txq_free(struct wlc_info *wlc, struct wlc_txq_info *qi)
 }
 
 /*
- * Flag 'scan in progress' to withold dynamic phy calibration
+ * Flag 'scan in progress' to withhold dynamic phy calibration
  */
 void wlc_scan_start(struct wlc_info *wlc)
 {
diff --git a/drivers/staging/brcm80211/brcmsmac/wlc_rate.c b/drivers/staging/brcm80211/brcmsmac/wlc_rate.c
index 0cfa36023cf1..d284f1ac49cc 100644
--- a/drivers/staging/brcm80211/brcmsmac/wlc_rate.c
+++ b/drivers/staging/brcm80211/brcmsmac/wlc_rate.c
@@ -332,7 +332,7 @@ wlc_rate_hwrs_filter_sort_validate(wlc_rateset_t *rs,
 		return false;
 }
 
-/* caluclate the rate of a rx'd frame and return it as a ratespec */
+/* calculate the rate of a rx'd frame and return it as a ratespec */
 ratespec_t BCMFASTPATH wlc_compute_rspec(d11rxhdr_t *rxh, u8 *plcp)
 {
 	int phy_type;
diff --git a/drivers/staging/brcm80211/include/bcmsrom_fmt.h b/drivers/staging/brcm80211/include/bcmsrom_fmt.h
index ae2bff828607..4768968f910a 100644
--- a/drivers/staging/brcm80211/include/bcmsrom_fmt.h
+++ b/drivers/staging/brcm80211/include/bcmsrom_fmt.h
@@ -103,7 +103,7 @@
 
 #define	SROM_CRCREV		63
 
-/* SROM Rev 4: Reallocate the software part of the srom to accomodate
+/* SROM Rev 4: Reallocate the software part of the srom to accommodate
  * MIMO features. It assumes up to two PCIE functions and 440 bytes
  * of useable srom i.e. the useable storage in chips with OTP that
  * implements hardware redundancy.
diff --git a/drivers/staging/brcm80211/include/hndsoc.h b/drivers/staging/brcm80211/include/hndsoc.h
index 9747cc46ca96..6435686b329f 100644
--- a/drivers/staging/brcm80211/include/hndsoc.h
+++ b/drivers/staging/brcm80211/include/hndsoc.h
@@ -181,7 +181,7 @@
  * conventions for the use the flash space:
  */
 
-/* Minumum amount of flash we support */
+/* Minimum amount of flash we support */
 #define FLASH_MIN		0x00020000	/* Minimum flash size */
 
 /* A boot/binary may have an embedded block that describes its size  */
diff --git a/drivers/staging/brcm80211/util/bcmotp.c b/drivers/staging/brcm80211/util/bcmotp.c
index ba71c108b366..17991212a22d 100644
--- a/drivers/staging/brcm80211/util/bcmotp.c
+++ b/drivers/staging/brcm80211/util/bcmotp.c
@@ -213,7 +213,7 @@ static u16 ipxotp_read_bit(void *oh, chipcregs_t *cc, uint off)
 	return (int)st;
 }
 
-/* Calculate max HW/SW region byte size by substracting fuse region and checksum size,
+/* Calculate max HW/SW region byte size by subtracting fuse region and checksum size,
  * osizew is oi->wsize (OTP size - GU size) in words
  */
 static int ipxotp_max_rgnsz(si_t *sih, int osizew)
@@ -229,7 +229,7 @@ static int ipxotp_max_rgnsz(si_t *sih, int osizew)
 		ret = osizew * 2 - OTP_SZ_FU_72 - OTP_SZ_CHECKSUM;
 		break;
 	default:
-		ASSERT(0);	/* Don't konw about this chip */
+		ASSERT(0);	/* Don't know about this chip */
 	}
 
 	return ret;
diff --git a/drivers/staging/brcm80211/util/bcmsrom.c b/drivers/staging/brcm80211/util/bcmsrom.c
index eca35b94e96c..850bfa6593e0 100644
--- a/drivers/staging/brcm80211/util/bcmsrom.c
+++ b/drivers/staging/brcm80211/util/bcmsrom.c
@@ -1859,7 +1859,7 @@ static int initvars_srom_pci(si_t *sih, void *curmap, char **vars, uint *count)
 
 	/*
 	 * Apply CRC over SROM content regardless SROM is present or not,
-	 * and use variable <devpath>sromrev's existance in flash to decide
+	 * and use variable <devpath>sromrev's existence in flash to decide
 	 * if we should return an error when CRC fails or read SROM variables
 	 * from flash.
 	 */
diff --git a/drivers/staging/brcm80211/util/hnddma.c b/drivers/staging/brcm80211/util/hnddma.c
index 8a81eb997f99..be339feae77d 100644
--- a/drivers/staging/brcm80211/util/hnddma.c
+++ b/drivers/staging/brcm80211/util/hnddma.c
@@ -1179,7 +1179,7 @@ static void BCMFASTPATH dma64_txreclaim(dma_info_t *di, txd_range_t range)
 		   (range == HNDDMA_RANGE_ALL) ? "all" :
 		   ((range ==
 		     HNDDMA_RANGE_TRANSMITTED) ? "transmitted" :
-		    "transfered")));
+		    "transferred")));
 
 	if (di->txin == di->txout)
 		return;
@@ -1549,7 +1549,7 @@ static int BCMFASTPATH dma64_txfast(dma_info_t *di, struct sk_buff *p0,
  * If range is HNDDMA_RANGE_TRANSMITTED, reclaim descriptors that have be
  * transmitted as noted by the hardware "CurrDescr" pointer.
  * If range is HNDDMA_RANGE_TRANSFERED, reclaim descriptors that have be
- * transfered by the DMA as noted by the hardware "ActiveDescr" pointer.
+ * transferred by the DMA as noted by the hardware "ActiveDescr" pointer.
  * If range is HNDDMA_RANGE_ALL, reclaim all txd(s) posted to the ring and
  * return associated packet regardless of the value of hardware pointers.
  */
@@ -1563,7 +1563,7 @@ static void *BCMFASTPATH dma64_getnexttxp(dma_info_t *di, txd_range_t range)
 		   (range == HNDDMA_RANGE_ALL) ? "all" :
 		   ((range ==
 		     HNDDMA_RANGE_TRANSMITTED) ? "transmitted" :
-		    "transfered")));
+		    "transferred")));
 
 	if (di->ntxd == 0)
 		return NULL;
diff --git a/drivers/staging/brcm80211/util/sbpcmcia.h b/drivers/staging/brcm80211/util/sbpcmcia.h
index 6b9923f551a9..d4c156586e81 100644
--- a/drivers/staging/brcm80211/util/sbpcmcia.h
+++ b/drivers/staging/brcm80211/util/sbpcmcia.h
@@ -109,7 +109,7 @@
 #define	CISTPL_CFTABLE		0x1b	/* Config table entry */
 #define	CISTPL_END		0xff	/* End of the CIS tuple chain */
 
-/* Function identifier provides context for the function extentions tuple */
+/* Function identifier provides context for the function extensions tuple */
 #define CISTPL_FID_SDIO		0x0c	/* Extensions defined by SDIO spec */
 
 /* Function extensions for LANs (assumed for extensions other than SDIO) */
diff --git a/drivers/staging/brcm80211/util/siutils.c b/drivers/staging/brcm80211/util/siutils.c
index ed168ceba5f0..6ebd7f58af81 100644
--- a/drivers/staging/brcm80211/util/siutils.c
+++ b/drivers/staging/brcm80211/util/siutils.c
@@ -1319,7 +1319,7 @@ int si_clkctl_xtal(si_t *sih, uint what, bool on)
 }
 
 /*
- *  clock control policy function throught chipcommon
+ *  clock control policy function through chipcommon
  *
  *    set dynamic clk control mode (forceslow, forcefast, dynamic)
  *    returns true if we are forcing fast clock
diff --git a/drivers/staging/comedi/comedi_fops.c b/drivers/staging/comedi/comedi_fops.c
index a4ceb29c358e..e7e72b8d8cde 100644
--- a/drivers/staging/comedi/comedi_fops.c
+++ b/drivers/staging/comedi/comedi_fops.c
@@ -2064,7 +2064,7 @@ void comedi_event(struct comedi_device *dev, struct comedi_subdevice *s)
 			     COMEDI_CB_OVERFLOW)) {
 		runflags_mask |= SRF_RUNNING;
 	}
-	/* remember if an error event has occured, so an error
+	/* remember if an error event has occurred, so an error
 	 * can be returned the next time the user does a read() */
 	if (s->async->events & (COMEDI_CB_ERROR | COMEDI_CB_OVERFLOW)) {
 		runflags_mask |= SRF_ERROR;
diff --git a/drivers/staging/comedi/drivers/addi-data/APCI1710_Chrono.c b/drivers/staging/comedi/drivers/addi-data/APCI1710_Chrono.c
index 644bda44556e..482a412aa652 100644
--- a/drivers/staging/comedi/drivers/addi-data/APCI1710_Chrono.c
+++ b/drivers/staging/comedi/drivers/addi-data/APCI1710_Chrono.c
@@ -124,9 +124,9 @@ You should also find the complete GPL in the COPYING file accompanying this sour
 |                     -5: The selected PCI input clock is wrong              |
 |                     -6: Timing unity selection is wrong                    |
 |                     -7: Base timing selection is wrong                     |
-|                     -8: You can not used the 40MHz clock selection wich    |
+|                     -8: You can not used the 40MHz clock selection with    |
 |                         this board                                         |
-|                     -9: You can not used the 40MHz clock selection wich    |
+|                     -9: You can not used the 40MHz clock selection with    |
 |                         this CHRONOS version                               |
 +----------------------------------------------------------------------------+
 */
@@ -721,10 +721,10 @@ int i_APCI1710_InsnConfigInitChrono(struct comedi_device *dev, struct comedi_sub
 								}
 							} else {
 			     /**************************************************************/
-								/* You can not used the 40MHz clock selection wich this board */
+								/* You can not use the 40MHz clock selection with this board */
 			     /**************************************************************/
 
-								DPRINTK("You can not used the 40MHz clock selection wich this board\n");
+								DPRINTK("You can not used the 40MHz clock selection with this board\n");
 								i_ReturnValue =
 									-8;
 							}
diff --git a/drivers/staging/comedi/drivers/addi-data/addi_amcc_S5920.c b/drivers/staging/comedi/drivers/addi-data/addi_amcc_S5920.c
index 90e71e12784a..b973095146f9 100644
--- a/drivers/staging/comedi/drivers/addi-data/addi_amcc_S5920.c
+++ b/drivers/staging/comedi/drivers/addi-data/addi_amcc_S5920.c
@@ -59,7 +59,7 @@ You should also find the complete GPL in the COPYING file accompanying this sour
 /*+----------------------------------------------------------------------------+*/
 /*| Input Parameters  : int    i_NbOfWordsToRead : Nbr. of word to read        |*/
 /*|                     unsigned int dw_PCIBoardEepromAddress : Address of the eeprom |*/
-/*|                     unsigned short   w_EepromStartAddress : Eeprom strat address     |*/
+/*|                     unsigned short   w_EepromStartAddress : Eeprom start address     |*/
 /*+----------------------------------------------------------------------------+*/
 /*| Output Parameters : unsigned short * pw_DataRead : Read data                          |*/
 /*+----------------------------------------------------------------------------+*/
diff --git a/drivers/staging/comedi/drivers/addi-data/hwdrv_apci2032.c b/drivers/staging/comedi/drivers/addi-data/hwdrv_apci2032.c
index 9dd857df93c8..002297dfe33f 100644
--- a/drivers/staging/comedi/drivers/addi-data/hwdrv_apci2032.c
+++ b/drivers/staging/comedi/drivers/addi-data/hwdrv_apci2032.c
@@ -498,7 +498,7 @@ void v_APCI2032_Interrupt(int irq, void *d)
 	struct comedi_device *dev = d;
 	unsigned int ui_DO;
 
-	ui_DO = inl(devpriv->iobase + APCI2032_DIGITAL_OP_IRQ) & 0x1;	/* Check if VCC OR CC interrupt has occured. */
+	ui_DO = inl(devpriv->iobase + APCI2032_DIGITAL_OP_IRQ) & 0x1;	/* Check if VCC OR CC interrupt has occurred. */
 
 	if (ui_DO == 0) {
 		printk("\nInterrupt from unKnown source\n");
diff --git a/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3120.c b/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3120.c
index a813fdbbd96e..fc61214151b7 100644
--- a/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3120.c
+++ b/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3120.c
@@ -148,7 +148,7 @@ int i_APCI3120_InsnReadAnalogInput(struct comedi_device *dev, struct comedi_subd
 	unsigned short us_ConvertTiming, us_TmpValue, i;
 	unsigned char b_Tmp;
 
-	/*  fix convertion time to 10 us */
+	/*  fix conversion time to 10 us */
 	if (!devpriv->ui_EocEosConversionTime) {
 		printk("No timer0 Value using 10 us\n");
 		us_ConvertTiming = 10;
@@ -251,7 +251,7 @@ int i_APCI3120_InsnReadAnalogInput(struct comedi_device *dev, struct comedi_subd
 				APCI3120_SELECT_TIMER_0_WORD;
 			outb(b_Tmp, devpriv->iobase + APCI3120_TIMER_CRT0);
 
-			/* Set the convertion time */
+			/* Set the conversion time */
 			outw(us_ConvertTiming,
 				devpriv->iobase + APCI3120_TIMER_VALUE);
 
@@ -311,7 +311,7 @@ int i_APCI3120_InsnReadAnalogInput(struct comedi_device *dev, struct comedi_subd
 				APCI3120_SELECT_TIMER_0_WORD;
 			outb(b_Tmp, devpriv->iobase + APCI3120_TIMER_CRT0);
 
-			/* Set the convertion time */
+			/* Set the conversion time */
 			outw(us_ConvertTiming,
 				devpriv->iobase + APCI3120_TIMER_VALUE);
 
@@ -354,9 +354,9 @@ int i_APCI3120_InsnReadAnalogInput(struct comedi_device *dev, struct comedi_subd
 			/* Start conversion */
 			outw(0, devpriv->iobase + APCI3120_START_CONVERSION);
 
-			/* Waiting of end of convertion if interrupt is not installed */
+			/* Waiting of end of conversion if interrupt is not installed */
 			if (devpriv->b_EocEosInterrupt == APCI3120_DISABLE) {
-				/* Waiting the end of convertion */
+				/* Waiting the end of conversion */
 				do {
 					us_TmpValue =
 						inw(devpriv->iobase +
@@ -854,7 +854,7 @@ int i_APCI3120_CyclicAnalogInput(int mode, struct comedi_device *dev,
 				b_DigitalOutputRegister) & 0xF0) |
 			APCI3120_SELECT_TIMER_0_WORD;
 		outb(b_Tmp, dev->iobase + APCI3120_TIMER_CRT0);
-		/* Set the convertion time */
+		/* Set the conversion time */
 		outw(((unsigned short) ui_TimerValue0),
 			dev->iobase + APCI3120_TIMER_VALUE);
 		break;
@@ -872,7 +872,7 @@ int i_APCI3120_CyclicAnalogInput(int mode, struct comedi_device *dev,
 				b_DigitalOutputRegister) & 0xF0) |
 			APCI3120_SELECT_TIMER_1_WORD;
 		outb(b_Tmp, dev->iobase + APCI3120_TIMER_CRT0);
-		/* Set the convertion time */
+		/* Set the conversion time */
 		outw(((unsigned short) ui_TimerValue1),
 			dev->iobase + APCI3120_TIMER_VALUE);
 
@@ -889,7 +889,7 @@ int i_APCI3120_CyclicAnalogInput(int mode, struct comedi_device *dev,
 			APCI3120_SELECT_TIMER_0_WORD;
 		outb(b_Tmp, dev->iobase + APCI3120_TIMER_CRT0);
 
-		/* Set the convertion time */
+		/* Set the conversion time */
 		outw(((unsigned short) ui_TimerValue0),
 			dev->iobase + APCI3120_TIMER_VALUE);
 		break;
@@ -1104,7 +1104,7 @@ int i_APCI3120_CyclicAnalogInput(int mode, struct comedi_device *dev,
 
 /*
  * 4
- * amount of bytes to be transfered set transfer count used ADDON
+ * amount of bytes to be transferred set transfer count used ADDON
  * MWTC register commented testing
  * outl(devpriv->ui_DmaBufferUsesize[0],
  * devpriv->i_IobaseAddon+AMCC_OP_REG_AMWTC);
diff --git a/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3120.h b/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3120.h
index b3c81979f14d..50eb0a0a0a05 100644
--- a/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3120.h
+++ b/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3120.h
@@ -169,7 +169,7 @@ struct str_AnalogReadInformation {
 
 	unsigned char b_Type;		/* EOC or EOS */
 	unsigned char b_InterruptFlag;	/* Interrupt use or not                    */
-	unsigned int ui_ConvertTiming;	/* Selection of the convertion time        */
+	unsigned int ui_ConvertTiming;	/* Selection of the conversion time        */
 	unsigned char b_NbrOfChannel;	/* Number of channel to read               */
 	unsigned int ui_ChannelList[MAX_ANALOGINPUT_CHANNELS];	/* Number of the channel to be read        */
 	unsigned int ui_RangeList[MAX_ANALOGINPUT_CHANNELS];	/* Gain of each channel                    */
diff --git a/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3200.c b/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3200.c
index a93e2349ad3a..c75a1a1fd775 100644
--- a/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3200.c
+++ b/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3200.c
@@ -103,7 +103,7 @@ struct str_BoardInfos s_BoardInfos[100];	/*  100 will be the max number of board
 /*+----------------------------------------------------------------------------+*/
 /*| Input Parameters  : int    i_NbOfWordsToRead : Nbr. of word to read        |*/
 /*|                     unsigned int dw_PCIBoardEepromAddress : Address of the eeprom |*/
-/*|                     unsigned short   w_EepromStartAddress : Eeprom strat address     |*/
+/*|                     unsigned short   w_EepromStartAddress : Eeprom start address     |*/
 /*+----------------------------------------------------------------------------+*/
 /*| Output Parameters : unsigned short * pw_DataRead : Read data                          |*/
 /*+----------------------------------------------------------------------------+*/
@@ -849,7 +849,7 @@ int i_APCI3200_ReadDigitalOutput(struct comedi_device *dev, struct comedi_subdev
   |                                             0:Single Read
   |                                             1:Read more channel
   2:Single scan
-  |                                             3:Continous Scan
+  |                                             3:Continuous Scan
   data[13]          :Number of channels to read
   |                          data[14]          :RTD connection type
   :0:RTD not used
diff --git a/drivers/staging/comedi/drivers/adl_pci9118.c b/drivers/staging/comedi/drivers/adl_pci9118.c
index 766103c882ad..632d5d0721cd 100644
--- a/drivers/staging/comedi/drivers/adl_pci9118.c
+++ b/drivers/staging/comedi/drivers/adl_pci9118.c
@@ -23,7 +23,7 @@ For AI:
 - If cmd->scan_begin_src=TRIG_EXT then trigger input is TGIN (pin 46).
 - If cmd->convert_src=TRIG_EXT then trigger input is EXTTRG (pin 44).
 - If cmd->start_src/stop_src=TRIG_EXT then trigger input is TGIN (pin 46).
-- It is not neccessary to have cmd.scan_end_arg=cmd.chanlist_len but
+- It is not necessary to have cmd.scan_end_arg=cmd.chanlist_len but
   cmd.scan_end_arg modulo cmd.chanlist_len must by 0.
 - If return value of cmdtest is 5 then you've bad channel list
   (it isn't possible mixture S.E. and DIFF inputs or bipolar and unipolar
@@ -823,7 +823,7 @@ static void interrupt_pci9118_ai_dma(struct comedi_device *dev,
 		move_block_from_dma(dev, s,
 				    devpriv->dmabuf_virt[devpriv->dma_actbuf],
 				    samplesinbuf);
-		m = m - sampls;		/* m= how many samples was transfered */
+		m = m - sampls;		/* m= how many samples was transferred */
 	}
 /* DPRINTK("YYY\n"); */
 
@@ -1297,7 +1297,7 @@ static int Compute_and_setup_dma(struct comedi_device *dev)
 	DPRINTK("3 dmalen0=%d dmalen1=%d\n", dmalen0, dmalen1);
 	/* transfer without TRIG_WAKE_EOS */
 	if (!(devpriv->ai_flags & TRIG_WAKE_EOS)) {
-		/* if it's possible then allign DMA buffers to length of scan */
+		/* if it's possible then align DMA buffers to length of scan */
 		i = dmalen0;
 		dmalen0 =
 		    (dmalen0 / (devpriv->ai_n_realscanlen << 1)) *
diff --git a/drivers/staging/comedi/drivers/adq12b.c b/drivers/staging/comedi/drivers/adq12b.c
index 4b470000b69c..5361f318b010 100644
--- a/drivers/staging/comedi/drivers/adq12b.c
+++ b/drivers/staging/comedi/drivers/adq12b.c
@@ -65,7 +65,7 @@ If you do not specify any options, they will default to
    written by jeremy theler <thelerg@ib.cnea.gov.ar>
 
    instituto balseiro
-   comision nacional de energia atomica
+   commission nacional de energia atomica
    universidad nacional de cuyo
    argentina
 
@@ -342,7 +342,7 @@ static int adq12b_ai_rinsn(struct comedi_device *dev,
 	/* convert n samples */
 	for (n = 0; n < insn->n; n++) {
 
-		/* wait for end of convertion */
+		/* wait for end of conversion */
 		i = 0;
 		do {
 			/* udelay(1); */
diff --git a/drivers/staging/comedi/drivers/adv_pci1710.c b/drivers/staging/comedi/drivers/adv_pci1710.c
index 466e69f94ef2..da2b75b15d4e 100644
--- a/drivers/staging/comedi/drivers/adv_pci1710.c
+++ b/drivers/staging/comedi/drivers/adv_pci1710.c
@@ -98,7 +98,7 @@ Configuration options:
 #define	Status_FE	0x0100	/* 1=FIFO is empty */
 #define Status_FH	0x0200	/* 1=FIFO is half full */
 #define Status_FF	0x0400	/* 1=FIFO is full, fatal error */
-#define Status_IRQ	0x0800	/* 1=IRQ occured */
+#define Status_IRQ	0x0800	/* 1=IRQ occurred */
 /* bits from control register (PCI171x_CONTROL) */
 #define Control_CNT0	0x0040	/* 1=CNT0 have external source,
 				 * 0=have internal 100kHz source */
@@ -1161,7 +1161,7 @@ static int check_channel_list(struct comedi_device *dev,
 	}
 
 	if (n_chan > 1) {
-		chansegment[0] = chanlist[0];	/*  first channel is everytime ok */
+		chansegment[0] = chanlist[0];	/*  first channel is every time ok */
 		for (i = 1, seglen = 1; i < n_chan; i++, seglen++) {	/*  build part of chanlist */
 			/*  printk("%d. %d %d\n",i,CR_CHAN(chanlist[i]),CR_RANGE(chanlist[i])); */
 			if (chanlist[0] == chanlist[i])
@@ -1176,9 +1176,9 @@ static int check_channel_list(struct comedi_device *dev,
 			    (CR_CHAN(chansegment[i - 1]) + 1) % s->n_chan;
 			if (CR_AREF(chansegment[i - 1]) == AREF_DIFF)
 				nowmustbechan = (nowmustbechan + 1) % s->n_chan;
-			if (nowmustbechan != CR_CHAN(chanlist[i])) {	/*  channel list isn't continous :-( */
+			if (nowmustbechan != CR_CHAN(chanlist[i])) {	/*  channel list isn't continuous :-( */
 				printk
-				    ("channel list must be continous! chanlist[%i]=%d but must be %d or %d!\n",
+				    ("channel list must be continuous! chanlist[%i]=%d but must be %d or %d!\n",
 				     i, CR_CHAN(chanlist[i]), nowmustbechan,
 				     CR_CHAN(chanlist[0]));
 				return 0;
diff --git a/drivers/staging/comedi/drivers/cb_pcidas.c b/drivers/staging/comedi/drivers/cb_pcidas.c
index 0941643b3869..61968a505f24 100644
--- a/drivers/staging/comedi/drivers/cb_pcidas.c
+++ b/drivers/staging/comedi/drivers/cb_pcidas.c
@@ -115,7 +115,7 @@ analog triggering on 1602 series
 #define   INT_MASK 0x3		/*  mask of interrupt select bits */
 #define   INTE 0x4		/*  interrupt enable */
 #define   DAHFIE 0x8		/*  dac half full interrupt enable */
-#define   EOAIE	0x10		/*  end of aquisition interrupt enable */
+#define   EOAIE	0x10		/*  end of acquisition interrupt enable */
 #define   DAHFI	0x20		/*  dac half full read status / write interrupt clear */
 #define   EOAI 0x40		/*  read end of acq. interrupt status / write clear */
 #define   INT 0x80		/*  read interrupt status / write clear */
@@ -440,7 +440,7 @@ struct cb_pcidas_private {
 	unsigned int divisor1;
 	unsigned int divisor2;
 	volatile unsigned int count;	/*  number of analog input samples remaining */
-	volatile unsigned int adc_fifo_bits;	/*  bits to write to interupt/adcfifo register */
+	volatile unsigned int adc_fifo_bits;	/*  bits to write to interrupt/adcfifo register */
 	volatile unsigned int s5933_intcsr_bits;	/*  bits to write to amcc s5933 interrupt control/status register */
 	volatile unsigned int ao_control_bits;	/*  bits to write to ao control and status register */
 	short ai_buffer[AI_BUFFER_SIZE];
@@ -1653,7 +1653,7 @@ static irqreturn_t cb_pcidas_interrupt(int irq, void *d)
 		spin_unlock_irqrestore(&dev->spinlock, flags);
 	} else if (status & EOAI) {
 		comedi_error(dev,
-			     "bug! encountered end of aquisition interrupt?");
+			     "bug! encountered end of acquisition interrupt?");
 		/*  clear EOA interrupt latch */
 		spin_lock_irqsave(&dev->spinlock, flags);
 		outw(devpriv->adc_fifo_bits | EOAI,
diff --git a/drivers/staging/comedi/drivers/cb_pcidas64.c b/drivers/staging/comedi/drivers/cb_pcidas64.c
index 2583e16cd02a..1e324198996c 100644
--- a/drivers/staging/comedi/drivers/cb_pcidas64.c
+++ b/drivers/staging/comedi/drivers/cb_pcidas64.c
@@ -104,7 +104,7 @@ TODO:
 #endif
 
 #define TIMER_BASE 25		/*  40MHz master clock */
-#define PRESCALED_TIMER_BASE	10000	/*  100kHz 'prescaled' clock for slow aquisition, maybe I'll support this someday */
+#define PRESCALED_TIMER_BASE	10000	/*  100kHz 'prescaled' clock for slow acquisition, maybe I'll support this someday */
 #define DMA_BUFFER_SIZE 0x1000
 
 #define PCI_VENDOR_ID_COMPUTERBOARDS	0x1307
@@ -136,7 +136,7 @@ enum write_only_registers {
 	ADC_DELAY_INTERVAL_UPPER_REG = 0x1c,	/*  upper 8 bits of delay interval counter */
 	ADC_COUNT_LOWER_REG = 0x1e,	/*  lower 16 bits of hardware conversion/scan counter */
 	ADC_COUNT_UPPER_REG = 0x20,	/*  upper 8 bits of hardware conversion/scan counter */
-	ADC_START_REG = 0x22,	/*  software trigger to start aquisition */
+	ADC_START_REG = 0x22,	/*  software trigger to start acquisition */
 	ADC_CONVERT_REG = 0x24,	/*  initiates single conversion */
 	ADC_QUEUE_CLEAR_REG = 0x26,	/*  clears adc queue */
 	ADC_QUEUE_LOAD_REG = 0x28,	/*  loads adc queue */
@@ -199,7 +199,7 @@ enum intr_enable_contents {
 	ADC_INTR_EOSCAN_BITS = 0x2,	/*  interrupt end of scan */
 	ADC_INTR_EOSEQ_BITS = 0x3,	/*  interrupt end of sequence (probably wont use this it's pretty fancy) */
 	EN_ADC_INTR_SRC_BIT = 0x4,	/*  enable adc interrupt source */
-	EN_ADC_DONE_INTR_BIT = 0x8,	/*  enable adc aquisition done interrupt */
+	EN_ADC_DONE_INTR_BIT = 0x8,	/*  enable adc acquisition done interrupt */
 	DAC_INTR_SRC_MASK = 0x30,
 	DAC_INTR_QEMPTY_BITS = 0x0,
 	DAC_INTR_HIGH_CHAN_BITS = 0x10,
@@ -2867,7 +2867,7 @@ static int ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 
 	spin_unlock_irqrestore(&dev->spinlock, flags);
 
-	/*  start aquisition */
+	/*  start acquisition */
 	if (cmd->start_src == TRIG_NOW) {
 		writew(0, priv(dev)->main_iobase + ADC_START_REG);
 		DEBUG_PRINT("soft trig\n");
@@ -2942,7 +2942,7 @@ static void pio_drain_ai_fifo_16(struct comedi_device *dev)
 /* Read from 32 bit wide ai fifo of 4020 - deal with insane grey coding of pointers.
  * The pci-4020 hardware only supports
  * dma transfers (it only supports the use of pio for draining the last remaining
- * points from the fifo when a data aquisition operation has completed).
+ * points from the fifo when a data acquisition operation has completed).
  */
 static void pio_drain_ai_fifo_32(struct comedi_device *dev)
 {
@@ -3046,7 +3046,7 @@ static void handle_ai_interrupt(struct comedi_device *dev,
 		comedi_error(dev, "fifo overrun");
 		async->events |= COMEDI_CB_EOA | COMEDI_CB_ERROR;
 	}
-	/*  spin lock makes sure noone else changes plx dma control reg */
+	/*  spin lock makes sure no one else changes plx dma control reg */
 	spin_lock_irqsave(&dev->spinlock, flags);
 	dma1_status = readb(priv(dev)->plx9080_iobase + PLX_DMA1_CS_REG);
 	if (plx_status & ICS_DMA1_A) {	/*  dma chan 1 interrupt */
@@ -3170,7 +3170,7 @@ static void handle_ao_interrupt(struct comedi_device *dev,
 	async = s->async;
 	cmd = &async->cmd;
 
-	/*  spin lock makes sure noone else changes plx dma control reg */
+	/*  spin lock makes sure no one else changes plx dma control reg */
 	spin_lock_irqsave(&dev->spinlock, flags);
 	dma0_status = readb(priv(dev)->plx9080_iobase + PLX_DMA0_CS_REG);
 	if (plx_status & ICS_DMA0_A) {	/*  dma chan 0 interrupt */
diff --git a/drivers/staging/comedi/drivers/comedi_test.c b/drivers/staging/comedi/drivers/comedi_test.c
index b220b3055412..a804742b8022 100644
--- a/drivers/staging/comedi/drivers/comedi_test.c
+++ b/drivers/staging/comedi/drivers/comedi_test.c
@@ -81,7 +81,7 @@ static const struct waveform_board waveform_boards[] = {
 /* Data unique to this driver */
 struct waveform_private {
 	struct timer_list timer;
-	struct timeval last;	/* time at which last timer interrupt occured */
+	struct timeval last;	/* time at which last timer interrupt occurred */
 	unsigned int uvolt_amplitude;	/* waveform amplitude in microvolts */
 	unsigned long usec_period;	/* waveform period in microseconds */
 	unsigned long usec_current;	/* current time (modulo waveform period) */
diff --git a/drivers/staging/comedi/drivers/das1800.c b/drivers/staging/comedi/drivers/das1800.c
index 6ea93f9c0b48..60c2b12d6ffb 100644
--- a/drivers/staging/comedi/drivers/das1800.c
+++ b/drivers/staging/comedi/drivers/das1800.c
@@ -1087,7 +1087,7 @@ static void das1800_flush_dma_channel(struct comedi_device *dev,
 	return;
 }
 
-/* flushes remaining data from board when external trigger has stopped aquisition
+/* flushes remaining data from board when external trigger has stopped acquisition
  * and we are using dma transfers */
 static void das1800_flush_dma(struct comedi_device *dev,
 			      struct comedi_subdevice *s)
diff --git a/drivers/staging/comedi/drivers/das800.c b/drivers/staging/comedi/drivers/das800.c
index aecaedc5027e..96d41ad76956 100644
--- a/drivers/staging/comedi/drivers/das800.c
+++ b/drivers/staging/comedi/drivers/das800.c
@@ -391,7 +391,7 @@ static irqreturn_t das800_interrupt(int irq, void *d)
 	spin_lock_irqsave(&dev->spinlock, irq_flags);
 	outb(CONTROL1, dev->iobase + DAS800_GAIN);	/* select base address + 7 to be STATUS2 register */
 	status = inb(dev->iobase + DAS800_STATUS2) & STATUS2_HCEN;
-	/* don't release spinlock yet since we want to make sure noone else disables hardware conversions */
+	/* don't release spinlock yet since we want to make sure no one else disables hardware conversions */
 	if (status == 0) {
 		spin_unlock_irqrestore(&dev->spinlock, irq_flags);
 		return IRQ_HANDLED;
diff --git a/drivers/staging/comedi/drivers/dmm32at.c b/drivers/staging/comedi/drivers/dmm32at.c
index 693728e14bdb..2b4e6e6eb825 100644
--- a/drivers/staging/comedi/drivers/dmm32at.c
+++ b/drivers/staging/comedi/drivers/dmm32at.c
@@ -532,7 +532,7 @@ static int dmm32at_ai_rinsn(struct comedi_device *dev,
 		msb = dmm_inb(dev, DMM32AT_AIMSB);
 
 		/* invert sign bit to make range unsigned, this is an
-		   idiosyncracy of the diamond board, it return
+		   idiosyncrasy of the diamond board, it return
 		   conversions as a signed value, i.e. -32768 to
 		   32767, flipping the bit and interpreting it as
 		   signed gives you a range of 0 to 65535 which is
diff --git a/drivers/staging/comedi/drivers/dt2811.c b/drivers/staging/comedi/drivers/dt2811.c
index a1664caa1d96..0131d5225b52 100644
--- a/drivers/staging/comedi/drivers/dt2811.c
+++ b/drivers/staging/comedi/drivers/dt2811.c
@@ -560,7 +560,7 @@ int dt2811_adtrig(kdev_t minor, comedi_adtrig *adtrig)
 	switch (dev->i_admode) {
 	case COMEDI_MDEMAND:
 		dev->ntrig = adtrig->n - 1;
-		/* not neccessary */
+		/* not necessary */
 		/*printk("dt2811: AD soft trigger\n"); */
 		/*outb(DT2811_CLRERROR|DT2811_INTENB,
 			dev->iobase+DT2811_ADCSR); */
diff --git a/drivers/staging/comedi/drivers/dt9812.c b/drivers/staging/comedi/drivers/dt9812.c
index 06059850dae2..32d9c42e9659 100644
--- a/drivers/staging/comedi/drivers/dt9812.c
+++ b/drivers/staging/comedi/drivers/dt9812.c
@@ -773,7 +773,7 @@ static int dt9812_probe(struct usb_interface *interface,
 			retval = dt9812_read_info(dev, 1, &fw, sizeof(fw));
 			if (retval == 0) {
 				dev_info(&interface->dev,
-					 "usb_reset_configuration succeded "
+					 "usb_reset_configuration succeeded "
 					 "after %d iterations\n", i);
 				break;
 			}
diff --git a/drivers/staging/comedi/drivers/gsc_hpdi.c b/drivers/staging/comedi/drivers/gsc_hpdi.c
index 1661b57ca2ad..bc020dea141b 100644
--- a/drivers/staging/comedi/drivers/gsc_hpdi.c
+++ b/drivers/staging/comedi/drivers/gsc_hpdi.c
@@ -1031,7 +1031,7 @@ static irqreturn_t handle_interrupt(int irq, void *d)
 		writel(hpdi_intr_status,
 		       priv(dev)->hpdi_iobase + INTERRUPT_STATUS_REG);
 	}
-	/*  spin lock makes sure noone else changes plx dma control reg */
+	/*  spin lock makes sure no one else changes plx dma control reg */
 	spin_lock_irqsave(&dev->spinlock, flags);
 	dma0_status = readb(priv(dev)->plx9080_iobase + PLX_DMA0_CS_REG);
 	if (plx_status & ICS_DMA0_A) {	/*  dma chan 0 interrupt */
@@ -1045,7 +1045,7 @@ static irqreturn_t handle_interrupt(int irq, void *d)
 	}
 	spin_unlock_irqrestore(&dev->spinlock, flags);
 
-	/*  spin lock makes sure noone else changes plx dma control reg */
+	/*  spin lock makes sure no one else changes plx dma control reg */
 	spin_lock_irqsave(&dev->spinlock, flags);
 	dma1_status = readb(priv(dev)->plx9080_iobase + PLX_DMA1_CS_REG);
 	if (plx_status & ICS_DMA1_A) {	/*  XXX *//*  dma chan 1 interrupt */
diff --git a/drivers/staging/comedi/drivers/icp_multi.c b/drivers/staging/comedi/drivers/icp_multi.c
index 0bab39b3409b..126550f3c02b 100644
--- a/drivers/staging/comedi/drivers/icp_multi.c
+++ b/drivers/staging/comedi/drivers/icp_multi.c
@@ -715,7 +715,7 @@ Description:
 	is built correctly
 
 Parameters:
-	struct comedi_device *dev	Pointer to current sevice structure
+	struct comedi_device *dev	Pointer to current service structure
 	struct comedi_subdevice *s	Pointer to current subdevice structure
 	unsigned int *chanlist	Pointer to packed channel list
 	unsigned int n_chan	Number of channels to scan
@@ -772,7 +772,7 @@ Description:
 	Status register.
 
 Parameters:
-	struct comedi_device *dev	Pointer to current sevice structure
+	struct comedi_device *dev	Pointer to current service structure
 	struct comedi_subdevice *s	Pointer to current subdevice structure
 	unsigned int *chanlist	Pointer to packed channel list
 	unsigned int n_chan	Number of channels to scan
@@ -848,7 +848,7 @@ Description:
 	This function resets the icp multi device to a 'safe' state
 
 Parameters:
-	struct comedi_device *dev	Pointer to current sevice structure
+	struct comedi_device *dev	Pointer to current service structure
 
 Returns:int	0 = success
 
diff --git a/drivers/staging/comedi/drivers/me4000.c b/drivers/staging/comedi/drivers/me4000.c
index 75511bae0191..b692fea0d2b0 100644
--- a/drivers/staging/comedi/drivers/me4000.c
+++ b/drivers/staging/comedi/drivers/me4000.c
@@ -1810,7 +1810,7 @@ static irqreturn_t me4000_ai_isr(int irq, void *dev_id)
 		       ai_context->irq_status_reg) &
 	    ME4000_IRQ_STATUS_BIT_AI_HF) {
 		ISR_PDEBUG
-		    ("me4000_ai_isr(): Fifo half full interrupt occured\n");
+		    ("me4000_ai_isr(): Fifo half full interrupt occurred\n");
 
 		/* Read status register to find out what happened */
 		tmp = me4000_inl(dev, ai_context->ctrl_reg);
@@ -1903,7 +1903,7 @@ static irqreturn_t me4000_ai_isr(int irq, void *dev_id)
 	if (me4000_inl(dev,
 		       ai_context->irq_status_reg) & ME4000_IRQ_STATUS_BIT_SC) {
 		ISR_PDEBUG
-		    ("me4000_ai_isr(): Sample counter interrupt occured\n");
+		    ("me4000_ai_isr(): Sample counter interrupt occurred\n");
 
 		s->async->events |= COMEDI_CB_BLOCK | COMEDI_CB_EOA;
 
diff --git a/drivers/staging/comedi/drivers/mpc624.c b/drivers/staging/comedi/drivers/mpc624.c
index a89eebd23f65..dd09a6d46e5c 100644
--- a/drivers/staging/comedi/drivers/mpc624.c
+++ b/drivers/staging/comedi/drivers/mpc624.c
@@ -39,8 +39,8 @@ Status: working
 
 Configuration Options:
   [0] - I/O base address
-  [1] - convertion rate
-	Convertion rate  RMS noise  Effective Number Of Bits
+  [1] - conversion rate
+	Conversion rate  RMS noise  Effective Number Of Bits
 	0      3.52kHz        23uV                17
 	1      1.76kHz       3.5uV                20
 	2       880Hz         2uV                21.3
@@ -93,8 +93,8 @@ Configuration Options:
 #define MPC624_DMY_BIT          (1<<30)
 #define MPC624_SGN_BIT          (1<<29)
 
-/* Convertion speeds */
-/* OSR4 OSR3 OSR2 OSR1 OSR0  Convertion rate  RMS noise  ENOB^
+/* Conversion speeds */
+/* OSR4 OSR3 OSR2 OSR1 OSR0  Conversion rate  RMS noise  ENOB^
  *  X    0    0    0    1        3.52kHz        23uV      17
  *  X    0    0    1    0        1.76kHz       3.5uV      20
  *  X    0    0    1    1         880Hz         2uV      21.3
@@ -227,7 +227,7 @@ static int mpc624_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		break;
 	default:
 		printk
-		    (KERN_ERR "illegal convertion rate setting!"
+		    (KERN_ERR "illegal conversion rate setting!"
 			" Valid numbers are 0..9. Using 9 => 6.875 Hz, ");
 		devpriv->ulConvertionRate = MPC624_SPEED_3_52_kHz;
 	}
@@ -296,7 +296,7 @@ static int mpc624_ai_rinsn(struct comedi_device *dev,
 	}
 
 	for (n = 0; n < insn->n; n++) {
-		/*  Trigger the convertion */
+		/*  Trigger the conversion */
 		outb(MPC624_ADSCK, dev->iobase + MPC624_ADC);
 		udelay(1);
 		outb(MPC624_ADCS | MPC624_ADSCK, dev->iobase + MPC624_ADC);
@@ -304,7 +304,7 @@ static int mpc624_ai_rinsn(struct comedi_device *dev,
 		outb(0, dev->iobase + MPC624_ADC);
 		udelay(1);
 
-		/*  Wait for the convertion to end */
+		/*  Wait for the conversion to end */
 		for (i = 0; i < TIMEOUT; i++) {
 			ucPort = inb(dev->iobase + MPC624_ADC);
 			if (ucPort & MPC624_ADBUSY)
diff --git a/drivers/staging/comedi/drivers/ni_at_a2150.c b/drivers/staging/comedi/drivers/ni_at_a2150.c
index 4d0053ea2465..c192b71ec04f 100644
--- a/drivers/staging/comedi/drivers/ni_at_a2150.c
+++ b/drivers/staging/comedi/drivers/ni_at_a2150.c
@@ -104,10 +104,10 @@ TRIG_WAKE_EOS
 #define STATUS_REG		0x12	/*  read only */
 #define   FNE_BIT		0x1	/*  fifo not empty */
 #define   OVFL_BIT		0x8	/*  fifo overflow */
-#define   EDAQ_BIT		0x10	/*  end of aquisition interrupt */
+#define   EDAQ_BIT		0x10	/*  end of acquisition interrupt */
 #define   DCAL_BIT		0x20	/*  offset calibration in progress */
-#define   INTR_BIT		0x40	/*  interrupt has occured */
-#define   DMA_TC_BIT		0x80	/*  dma terminal count interrupt has occured */
+#define   INTR_BIT		0x40	/*  interrupt has occurred */
+#define   DMA_TC_BIT		0x80	/*  dma terminal count interrupt has occurred */
 #define   ID_BITS(x)	(((x) >> 8) & 0x3)
 #define IRQ_DMA_CNTRL_REG		0x12	/*  write only */
 #define   DMA_CHAN_BITS(x)		((x) & 0x7)	/*  sets dma channel */
@@ -434,7 +434,7 @@ static int a2150_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	s->cancel = a2150_cancel;
 
 	/* need to do this for software counting of completed conversions, to
-	 * prevent hardware count from stopping aquisition */
+	 * prevent hardware count from stopping acquisition */
 	outw(HW_COUNT_DISABLE, dev->iobase + I8253_MODE_REG);
 
 	/*  set card's irq and dma levels */
@@ -729,7 +729,7 @@ static int a2150_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	/*  send trigger config bits */
 	outw(trigger_bits, dev->iobase + TRIGGER_REG);
 
-	/*  start aquisition for soft trigger */
+	/*  start acquisition for soft trigger */
 	if (cmd->start_src == TRIG_NOW) {
 		outw(0, dev->iobase + FIFO_START_REG);
 	}
@@ -768,7 +768,7 @@ static int a2150_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s,
 	/*  setup start triggering */
 	outw(0, dev->iobase + TRIGGER_REG);
 
-	/*  start aquisition for soft trigger */
+	/*  start acquisition for soft trigger */
 	outw(0, dev->iobase + FIFO_START_REG);
 
 	/* there is a 35.6 sample delay for data to get through the antialias filter */
diff --git a/drivers/staging/comedi/drivers/ni_labpc.c b/drivers/staging/comedi/drivers/ni_labpc.c
index 241fe525abf0..ab8f37022a3c 100644
--- a/drivers/staging/comedi/drivers/ni_labpc.c
+++ b/drivers/staging/comedi/drivers/ni_labpc.c
@@ -183,11 +183,11 @@ NI manuals:
 #define   OVERRUN_BIT	0x2
 /* fifo overflow */
 #define   OVERFLOW_BIT	0x4
-/* timer interrupt has occured */
+/* timer interrupt has occurred */
 #define   TIMER_BIT	0x8
-/* dma terminal count has occured */
+/* dma terminal count has occurred */
 #define   DMATC_BIT	0x10
-/* external trigger has occured */
+/* external trigger has occurred */
 #define   EXT_TRIG_BIT	0x40
 /* 1200 boards only */
 #define STATUS2_REG	0x1d
@@ -1149,7 +1149,7 @@ static int labpc_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	range = CR_RANGE(cmd->chanlist[0]);
 	aref = CR_AREF(cmd->chanlist[0]);
 
-	/* make sure board is disabled before setting up aquisition */
+	/* make sure board is disabled before setting up acquisition */
 	spin_lock_irqsave(&dev->spinlock, flags);
 	devpriv->command2_bits &= ~SWTRIG_BIT & ~HWTRIG_BIT & ~PRETRIG_BIT;
 	devpriv->write_byte(devpriv->command2_bits, dev->iobase + COMMAND2_REG);
@@ -1349,7 +1349,7 @@ static int labpc_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 		devpriv->command3_bits &= ~ADC_FNE_INTR_EN_BIT;
 	devpriv->write_byte(devpriv->command3_bits, dev->iobase + COMMAND3_REG);
 
-	/*  startup aquisition */
+	/*  startup acquisition */
 
 	/*  command2 reg */
 	/*  use 2 cascaded counters for pacing */
@@ -1571,8 +1571,8 @@ static void handle_isa_dma(struct comedi_device *dev)
 	devpriv->write_byte(0x1, dev->iobase + DMATC_CLEAR_REG);
 }
 
-/* makes sure all data acquired by board is transfered to comedi (used
- * when aquisition is terminated by stop_src == TRIG_EXT). */
+/* makes sure all data acquired by board is transferred to comedi (used
+ * when acquisition is terminated by stop_src == TRIG_EXT). */
 static void labpc_drain_dregs(struct comedi_device *dev)
 {
 	if (devpriv->current_transfer == isa_dma_transfer)
diff --git a/drivers/staging/comedi/drivers/ni_pcidio.c b/drivers/staging/comedi/drivers/ni_pcidio.c
index 005d2fe86ee4..8dd3a01d48dd 100644
--- a/drivers/staging/comedi/drivers/ni_pcidio.c
+++ b/drivers/staging/comedi/drivers/ni_pcidio.c
@@ -821,7 +821,7 @@ static int ni_pcidio_cmdtest(struct comedi_device *dev,
 			cmd->scan_begin_arg = MAX_SPEED;
 			err++;
 		}
-		/* no minumum speed */
+		/* no minimum speed */
 	} else {
 		/* TRIG_EXT */
 		/* should be level/edge, hi/lo specification here */
diff --git a/drivers/staging/comedi/drivers/pcl812.c b/drivers/staging/comedi/drivers/pcl812.c
index c6dce4a1425e..09ff4723b225 100644
--- a/drivers/staging/comedi/drivers/pcl812.c
+++ b/drivers/staging/comedi/drivers/pcl812.c
@@ -34,7 +34,7 @@
  *	       and I cann't test all features.)
  *
  * This driver supports insn and cmd interfaces. Some boards support only insn
- * becouse their hardware don't allow more (PCL-813/B, ACL-8113, ISO-813).
+ * because their hardware don't allow more (PCL-813/B, ACL-8113, ISO-813).
  * Data transfer over DMA is supported only when you measure only one
  * channel, this is too hardware limitation of these boards.
  *
diff --git a/drivers/staging/comedi/drivers/pcl816.c b/drivers/staging/comedi/drivers/pcl816.c
index ef3cc4f3be6e..8f3fc6ee088b 100644
--- a/drivers/staging/comedi/drivers/pcl816.c
+++ b/drivers/staging/comedi/drivers/pcl816.c
@@ -954,7 +954,7 @@ check_channel_list(struct comedi_device *dev,
 	}
 
 	if (chanlen > 1) {
-		/*  first channel is everytime ok */
+		/*  first channel is every time ok */
 		chansegment[0] = chanlist[0];
 		for (i = 1, seglen = 1; i < chanlen; i++, seglen++) {
 			/*  build part of chanlist */
@@ -968,10 +968,10 @@ check_channel_list(struct comedi_device *dev,
 			nowmustbechan =
 			    (CR_CHAN(chansegment[i - 1]) + 1) % chanlen;
 			if (nowmustbechan != CR_CHAN(chanlist[i])) {
-				/*  channel list isn't continous :-( */
+				/*  channel list isn't continuous :-( */
 				printk(KERN_WARNING
 				       "comedi%d: pcl816: channel list must "
-				       "be continous! chanlist[%i]=%d but "
+				       "be continuous! chanlist[%i]=%d but "
 				       "must be %d or %d!\n", dev->minor,
 				       i, CR_CHAN(chanlist[i]), nowmustbechan,
 				       CR_CHAN(chanlist[0]));
diff --git a/drivers/staging/comedi/drivers/pcl818.c b/drivers/staging/comedi/drivers/pcl818.c
index f58d75be7295..e3eea09ae1fb 100644
--- a/drivers/staging/comedi/drivers/pcl818.c
+++ b/drivers/staging/comedi/drivers/pcl818.c
@@ -1231,7 +1231,7 @@ static int check_channel_list(struct comedi_device *dev,
 	}
 
 	if (n_chan > 1) {
-		/*  first channel is everytime ok */
+		/*  first channel is every time ok */
 		chansegment[0] = chanlist[0];
 		/*  build part of chanlist */
 		for (i = 1, seglen = 1; i < n_chan; i++, seglen++) {
@@ -1245,9 +1245,9 @@ static int check_channel_list(struct comedi_device *dev,
 				break;
 			nowmustbechan =
 			    (CR_CHAN(chansegment[i - 1]) + 1) % s->n_chan;
-			if (nowmustbechan != CR_CHAN(chanlist[i])) {	/*  channel list isn't continous :-( */
+			if (nowmustbechan != CR_CHAN(chanlist[i])) {	/*  channel list isn't continuous :-( */
 				printk
-				    ("comedi%d: pcl818: channel list must be continous! chanlist[%i]=%d but must be %d or %d!\n",
+				    ("comedi%d: pcl818: channel list must be continuous! chanlist[%i]=%d but must be %d or %d!\n",
 				     dev->minor, i, CR_CHAN(chanlist[i]),
 				     nowmustbechan, CR_CHAN(chanlist[0]));
 				return 0;
diff --git a/drivers/staging/comedi/drivers/pcmmio.c b/drivers/staging/comedi/drivers/pcmmio.c
index 5c832d7ed45d..f2e88e57d558 100644
--- a/drivers/staging/comedi/drivers/pcmmio.c
+++ b/drivers/staging/comedi/drivers/pcmmio.c
@@ -733,7 +733,7 @@ static int pcmmio_dio_insn_config(struct comedi_device *dev,
 		break;
 
 	case INSN_CONFIG_DIO_QUERY:
-		/* retreive from shadow register */
+		/* retrieve from shadow register */
 		data[1] =
 		    (s->io_bits & (1 << chan)) ? COMEDI_OUTPUT : COMEDI_INPUT;
 		return insn->n;
@@ -1279,7 +1279,7 @@ static int wait_dac_ready(unsigned long iobase)
 	   "no busy waiting" policy. The fact is that the hardware is
 	   normally so fast that we usually only need one time through the loop
 	   anyway. The longer timeout is for rare occasions and for detecting
-	   non-existant hardware.  */
+	   non-existent hardware.  */
 
 	while (retry--) {
 		if (inb(iobase + 3) & 0x80)
diff --git a/drivers/staging/comedi/drivers/pcmuio.c b/drivers/staging/comedi/drivers/pcmuio.c
index 7a9287433b2e..b2c2c8971a32 100644
--- a/drivers/staging/comedi/drivers/pcmuio.c
+++ b/drivers/staging/comedi/drivers/pcmuio.c
@@ -605,7 +605,7 @@ static int pcmuio_dio_insn_config(struct comedi_device *dev,
 		break;
 
 	case INSN_CONFIG_DIO_QUERY:
-		/* retreive from shadow register */
+		/* retrieve from shadow register */
 		data[1] =
 		    (s->io_bits & (1 << chan)) ? COMEDI_OUTPUT : COMEDI_INPUT;
 		return insn->n;
diff --git a/drivers/staging/comedi/drivers/quatech_daqp_cs.c b/drivers/staging/comedi/drivers/quatech_daqp_cs.c
index ebba9bb47777..82942e5728a5 100644
--- a/drivers/staging/comedi/drivers/quatech_daqp_cs.c
+++ b/drivers/staging/comedi/drivers/quatech_daqp_cs.c
@@ -390,7 +390,7 @@ static int daqp_ai_insn_read(struct comedi_device *dev,
 
 	outb(v, dev->iobase + DAQP_CONTROL);
 
-	/* Reset any pending interrupts (my card has a tendancy to require
+	/* Reset any pending interrupts (my card has a tendency to require
 	 * require multiple reads on the status register to achieve this)
 	 */
 
@@ -752,7 +752,7 @@ static int daqp_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 
 	outb(v, dev->iobase + DAQP_CONTROL);
 
-	/* Reset any pending interrupts (my card has a tendancy to require
+	/* Reset any pending interrupts (my card has a tendency to require
 	 * require multiple reads on the status register to achieve this)
 	 */
 	counter = 100;
diff --git a/drivers/staging/comedi/drivers/rtd520.c b/drivers/staging/comedi/drivers/rtd520.c
index 357858d27441..7f09ed755fe6 100644
--- a/drivers/staging/comedi/drivers/rtd520.c
+++ b/drivers/staging/comedi/drivers/rtd520.c
@@ -75,7 +75,7 @@ Configuration options:
     das1800, since they have the best documented code.  Driver
     cb_pcidas64.c uses the same DMA controller.
 
-    As far as I can tell, the About interrupt doesnt work if Sample is
+    As far as I can tell, the About interrupt doesn't work if Sample is
     also enabled.  It turns out that About really isn't needed, since
     we always count down samples read.
 
@@ -370,7 +370,7 @@ struct rtdPrivate {
 	/* timer gate (when enabled) */
 	u8 utcGate[4];		/* 1 extra allows simple range check */
 
-	/* shadow registers affect other registers, but cant be read back */
+	/* shadow registers affect other registers, but can't be read back */
 	/* The macros below update these on writes */
 	u16 intMask;		/* interrupt mask */
 	u16 intClearMask;	/* interrupt clear mask */
@@ -485,7 +485,7 @@ struct rtdPrivate {
 #define RtdAdcFifoGet(dev) \
 	readw(devpriv->las1+LAS1_ADC_FIFO)
 
-/* Read two ADC data values (DOESNT WORK) */
+/* Read two ADC data values (DOESN'T WORK) */
 #define RtdAdcFifoGet2(dev) \
 	readl(devpriv->las1+LAS1_ADC_FIFO)
 
@@ -857,7 +857,7 @@ static int rtd_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 			DPRINTK("rtd520: PCI latency = %d\n", pci_latency);
 		}
 
-		/* Undocumented EPLD version (doesnt match RTD driver results) */
+		/* Undocumented EPLD version (doesn't match RTD driver results) */
 		/*DPRINTK ("rtd520: Reading epld from %p\n",
 		   devpriv->las0+0);
 		   epld_version = readl (devpriv->las0+0);
@@ -1291,7 +1291,7 @@ static int rtd520_probe_fifo_depth(struct comedi_device *dev)
 /*
   "instructions" read/write data in "one-shot" or "software-triggered"
   mode (simplest case).
-  This doesnt use interrupts.
+  This doesn't use interrupts.
 
   Note, we don't do any settling delays.  Use a instruction list to
   select, delay, then read.
@@ -2120,7 +2120,7 @@ static int rtd_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 }
 
 /*
-  Stop a running data aquisition.
+  Stop a running data acquisition.
 */
 static int rtd_ai_cancel(struct comedi_device *dev, struct comedi_subdevice *s)
 {
diff --git a/drivers/staging/comedi/drivers/s626.c b/drivers/staging/comedi/drivers/s626.c
index d5ba3ab357a3..23fc64b9988e 100644
--- a/drivers/staging/comedi/drivers/s626.c
+++ b/drivers/staging/comedi/drivers/s626.c
@@ -139,7 +139,7 @@ struct s626_private {
 	int got_regions;
 	short allocatedBuf;
 	uint8_t ai_cmd_running;	/*  ai_cmd is running */
-	uint8_t ai_continous;	/*  continous aquisition */
+	uint8_t ai_continous;	/*  continous acquisition */
 	int ai_sample_count;	/*  number of samples to acquire */
 	unsigned int ai_sample_timer;
 	/*  time between samples in  units of the timer */
@@ -1048,7 +1048,7 @@ static irqreturn_t s626_irq_handler(int irq, void *d)
 	uint8_t group;
 	uint16_t irqbit;
 
-	DEBUG("s626_irq_handler: interrupt request recieved!!!\n");
+	DEBUG("s626_irq_handler: interrupt request received!!!\n");
 
 	if (dev->attached == 0)
 		return IRQ_NONE;
@@ -1165,14 +1165,14 @@ static irqreturn_t s626_irq_handler(int irq, void *d)
 							(16 * group)))
 					    == 1 && cmd->start_src == TRIG_EXT) {
 						DEBUG
-						    ("s626_irq_handler: Edge capture interrupt recieved from channel %d\n",
+						    ("s626_irq_handler: Edge capture interrupt received from channel %d\n",
 						     cmd->start_arg);
 
 						/*  Start executing the RPS program. */
 						MC_ENABLE(P_MC1, MC1_ERPS1);
 
 						DEBUG
-						    ("s626_irq_handler: aquisition start triggered!!!\n");
+						    ("s626_irq_handler: acquisition start triggered!!!\n");
 
 						if (cmd->scan_begin_src ==
 						    TRIG_EXT) {
@@ -1194,7 +1194,7 @@ static irqreturn_t s626_irq_handler(int irq, void *d)
 					    && cmd->scan_begin_src ==
 					    TRIG_EXT) {
 						DEBUG
-						    ("s626_irq_handler: Edge capture interrupt recieved from channel %d\n",
+						    ("s626_irq_handler: Edge capture interrupt received from channel %d\n",
 						     cmd->scan_begin_arg);
 
 						/*  Trigger ADC scan loop start by setting RPS Signal 0. */
@@ -1236,7 +1236,7 @@ static irqreturn_t s626_irq_handler(int irq, void *d)
 					    == 1
 					    && cmd->convert_src == TRIG_EXT) {
 						DEBUG
-						    ("s626_irq_handler: Edge capture interrupt recieved from channel %d\n",
+						    ("s626_irq_handler: Edge capture interrupt received from channel %d\n",
 						     cmd->convert_arg);
 
 						/*  Trigger ADC scan loop start by setting RPS Signal 0. */
@@ -1805,7 +1805,7 @@ static int s626_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 		DEBUG("s626_ai_cmd: NULL command\n");
 		return -EINVAL;
 	} else {
-		DEBUG("s626_ai_cmd: command recieved!!!\n");
+		DEBUG("s626_ai_cmd: command received!!!\n");
 	}
 
 	if (dev->irq == 0) {
@@ -1880,7 +1880,7 @@ static int s626_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 		devpriv->ai_continous = 0;
 		break;
 	case TRIG_NONE:
-		/*  continous aquisition */
+		/*  continous acquisition */
 		devpriv->ai_continous = 1;
 		devpriv->ai_sample_count = 0;
 		break;
@@ -2570,7 +2570,7 @@ static uint32_t I2Chandshake(struct comedi_device *dev, uint32_t val)
 	while ((RR7146(P_I2CCTRL) & (I2C_BUSY | I2C_ERR)) == I2C_BUSY)
 		;
 
-	/*  Return non-zero if I2C error occured. */
+	/*  Return non-zero if I2C error occurred. */
 	return RR7146(P_I2CCTRL) & I2C_ERR;
 
 }
diff --git a/drivers/staging/comedi/drivers/usbdux.c b/drivers/staging/comedi/drivers/usbdux.c
index be93c30e4b15..e543e6c2b1bb 100644
--- a/drivers/staging/comedi/drivers/usbdux.c
+++ b/drivers/staging/comedi/drivers/usbdux.c
@@ -285,7 +285,7 @@ struct usbduxsub {
 	short int ao_cmd_running;
 	/* pwm is running */
 	short int pwm_cmd_running;
-	/* continous aquisition */
+	/* continous acquisition */
 	short int ai_continous;
 	short int ao_continous;
 	/* number of samples to acquire */
@@ -500,7 +500,7 @@ static void usbduxsub_ai_IsocIrq(struct urb *urb)
 
 	/* test, if we transmit only a fixed number of samples */
 	if (!(this_usbduxsub->ai_continous)) {
-		/* not continous, fixed number of samples */
+		/* not continuous, fixed number of samples */
 		this_usbduxsub->ai_sample_count--;
 		/* all samples received? */
 		if (this_usbduxsub->ai_sample_count < 0) {
@@ -653,7 +653,7 @@ static void usbduxsub_ao_IsocIrq(struct urb *urb)
 		/* timer zero */
 		this_usbduxsub->ao_counter = this_usbduxsub->ao_timer;
 
-		/* handle non continous aquisition */
+		/* handle non continous acquisition */
 		if (!(this_usbduxsub->ao_continous)) {
 			/* fixed number of samples */
 			this_usbduxsub->ao_sample_count--;
@@ -957,7 +957,7 @@ static int usbdux_ai_cmdtest(struct comedi_device *dev,
 	if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
 		err++;
 
-	/* scanning is continous */
+	/* scanning is continuous */
 	tmp = cmd->convert_src;
 	cmd->convert_src &= TRIG_NOW;
 	if (!cmd->convert_src || tmp != cmd->convert_src)
@@ -1222,7 +1222,7 @@ static int usbdux_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 		up(&this_usbduxsub->sem);
 		return -EBUSY;
 	}
-	/* set current channel of the running aquisition to zero */
+	/* set current channel of the running acquisition to zero */
 	s->async->cur_chan = 0;
 
 	this_usbduxsub->dux_commands[1] = cmd->chanlist_len;
@@ -1284,7 +1284,7 @@ static int usbdux_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 		this_usbduxsub->ai_sample_count = cmd->stop_arg;
 		this_usbduxsub->ai_continous = 0;
 	} else {
-		/* continous aquisition */
+		/* continous acquisition */
 		this_usbduxsub->ai_continous = 1;
 		this_usbduxsub->ai_sample_count = 0;
 	}
@@ -1515,7 +1515,7 @@ static int usbdux_ao_cmdtest(struct comedi_device *dev,
 	/* just now we scan also in the high speed mode every frame */
 	/* this is due to ehci driver limitations */
 	if (0) {		/* (this_usbduxsub->high_speed) */
-		/* start immidiately a new scan */
+		/* start immediately a new scan */
 		/* the sampling rate is set by the coversion rate */
 		cmd->scan_begin_src &= TRIG_FOLLOW;
 	} else {
@@ -1525,7 +1525,7 @@ static int usbdux_ao_cmdtest(struct comedi_device *dev,
 	if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
 		err++;
 
-	/* scanning is continous */
+	/* scanning is continuous */
 	tmp = cmd->convert_src;
 	/* we always output at 1kHz just now all channels at once */
 	if (0) {		/* (this_usbduxsub->high_speed) */
@@ -1645,7 +1645,7 @@ static int usbdux_ao_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	dev_dbg(&this_usbduxsub->interface->dev,
 		"comedi%d: %s\n", dev->minor, __func__);
 
-	/* set current channel of the running aquisition to zero */
+	/* set current channel of the running acquisition to zero */
 	s->async->cur_chan = 0;
 	for (i = 0; i < cmd->chanlist_len; ++i) {
 		chan = CR_CHAN(cmd->chanlist[i]);
@@ -1694,7 +1694,7 @@ static int usbdux_ao_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	this_usbduxsub->ao_counter = this_usbduxsub->ao_timer;
 
 	if (cmd->stop_src == TRIG_COUNT) {
-		/* not continous */
+		/* not continuous */
 		/* counter */
 		/* high speed also scans everything at once */
 		if (0) {	/* (this_usbduxsub->high_speed) */
@@ -1708,7 +1708,7 @@ static int usbdux_ao_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 		}
 		this_usbduxsub->ao_continous = 0;
 	} else {
-		/* continous aquisition */
+		/* continous acquisition */
 		this_usbduxsub->ao_continous = 1;
 		this_usbduxsub->ao_sample_count = 0;
 	}
diff --git a/drivers/staging/comedi/drivers/usbduxfast.c b/drivers/staging/comedi/drivers/usbduxfast.c
index 5b15e6df54e6..2a8e725b7859 100644
--- a/drivers/staging/comedi/drivers/usbduxfast.c
+++ b/drivers/staging/comedi/drivers/usbduxfast.c
@@ -180,7 +180,7 @@ struct usbduxfastsub_s {
 	/* comedi device for the interrupt context */
 	struct comedi_device *comedidev;
 	short int ai_cmd_running;	/* asynchronous command is running */
-	short int ai_continous;	/* continous aquisition */
+	short int ai_continous;	/* continous acquisition */
 	long int ai_sample_count;	/* number of samples to acquire */
 	uint8_t *dux_commands;	/* commands */
 	int ignore;		/* counter which ignores the first
@@ -392,7 +392,7 @@ static void usbduxfastsub_ai_Irq(struct urb *urb)
 	p = urb->transfer_buffer;
 	if (!udfs->ignore) {
 		if (!udfs->ai_continous) {
-			/* not continous, fixed number of samples */
+			/* not continuous, fixed number of samples */
 			n = urb->actual_length / sizeof(uint16_t);
 			if (unlikely(udfs->ai_sample_count < n)) {
 				/*
@@ -775,7 +775,7 @@ static int usbduxfast_ai_cmd(struct comedi_device *dev,
 		up(&udfs->sem);
 		return -EBUSY;
 	}
-	/* set current channel of the running aquisition to zero */
+	/* set current channel of the running acquisition to zero */
 	s->async->cur_chan = 0;
 
 	/*
@@ -1182,7 +1182,7 @@ static int usbduxfast_ai_cmd(struct comedi_device *dev,
 		}
 		udfs->ai_continous = 0;
 	} else {
-		/* continous aquisition */
+		/* continous acquisition */
 		udfs->ai_continous = 1;
 		udfs->ai_sample_count = 0;
 	}
diff --git a/drivers/staging/cptm1217/clearpad_tm1217.c b/drivers/staging/cptm1217/clearpad_tm1217.c
index 76e4b782d2fb..0fe713e72e9d 100644
--- a/drivers/staging/cptm1217/clearpad_tm1217.c
+++ b/drivers/staging/cptm1217/clearpad_tm1217.c
@@ -52,7 +52,7 @@
 #define TMA1217_DEV_STATUS		0x13	/* Device Status */
 #define TMA1217_INT_STATUS		0x14	/* Interrupt Status */
 
-/* Controller can detect upto 2 possible finger touches.
+/* Controller can detect up to 2 possible finger touches.
  * Each finger touch provides  12 bit X Y co-ordinates, the values are split
  * across 2 registers, and an 8 bit  Z value */
 #define TMA1217_FINGER_STATE		0x18 /* Finger State */
diff --git a/drivers/staging/crystalhd/crystalhd_cmds.c b/drivers/staging/crystalhd/crystalhd_cmds.c
index 1429608544d6..3735ed3da4c6 100644
--- a/drivers/staging/crystalhd/crystalhd_cmds.c
+++ b/drivers/staging/crystalhd/crystalhd_cmds.c
@@ -914,7 +914,7 @@ enum BC_STATUS crystalhd_user_open(struct crystalhd_cmd *ctx,
  * Return:
  *	status
  *
- * Closer aplication handle and release app specific
+ * Closer application handle and release app specific
  * resources.
  */
 enum BC_STATUS crystalhd_user_close(struct crystalhd_cmd *ctx, struct crystalhd_user *uc)
diff --git a/drivers/staging/crystalhd/crystalhd_hw.c b/drivers/staging/crystalhd/crystalhd_hw.c
index 13a514dd0f79..5acf39e7cdef 100644
--- a/drivers/staging/crystalhd/crystalhd_hw.c
+++ b/drivers/staging/crystalhd/crystalhd_hw.c
@@ -302,7 +302,7 @@ static bool crystalhd_start_device(struct crystalhd_adp *adp)
 	crystalhd_enable_interrupts(adp);
 
 	/* Enable the option for getting the total no. of DWORDS
-	 * that have been transfered by the RXDMA engine
+	 * that have been transferred by the RXDMA engine
 	 */
 	dbg_options = crystalhd_reg_rd(adp, MISC1_DMA_DEBUG_OPTIONS_REG);
 	dbg_options |= 0x10;
@@ -1776,7 +1776,7 @@ enum BC_STATUS crystalhd_do_fw_cmd(struct crystalhd_hw *hw,
 		return sts;
 	}
 
-	/*Get the Responce Address*/
+	/*Get the Response Address*/
 	cmd_res_addr = bc_dec_reg_rd(hw->adp, Cpu2HstMbx1);
 
 	/*Read the Response*/
@@ -2367,7 +2367,7 @@ enum BC_STATUS crystalhd_hw_set_core_clock(struct crystalhd_hw *hw)
 	BCMLOG(BCMLOG_INFO, "clock is moving to %d with n %d with vco_mg %d\n",
 	       hw->core_clock_mhz, n, vco_mg);
 
-	/* Change the DRAM refresh rate to accomodate the new frequency */
+	/* Change the DRAM refresh rate to accommodate the new frequency */
 	/* refresh reg = ((refresh_rate * clock_rate)/16) - 1; rounding up*/
 	refresh_reg = (7 * hw->core_clock_mhz / 16);
 	bc_dec_reg_wr(hw->adp, SDRAM_REF_PARAM, ((1 << 12) | refresh_reg));
diff --git a/drivers/staging/cxt1e1/musycc.c b/drivers/staging/cxt1e1/musycc.c
index f274c77fb3fc..5cc3423a6646 100644
--- a/drivers/staging/cxt1e1/musycc.c
+++ b/drivers/staging/cxt1e1/musycc.c
@@ -1455,7 +1455,7 @@ musycc_intr_bh_tasklet (ci_t * ci)
             /*
              * If the descriptor has not recovered, then leaving the EMPTY
              * entry set will not signal to the MUSYCC that this descriptor
-             * has been serviced. The Interrupt Queue can then start loosing
+             * has been serviced. The Interrupt Queue can then start losing
              * available descriptors and MUSYCC eventually encounters and
              * reports the INTFULL condition.  Per manual, changing any bit
              * marks descriptor as available, thus the use of different
diff --git a/drivers/staging/cxt1e1/musycc.h b/drivers/staging/cxt1e1/musycc.h
index d2c91ef686d1..68f3660f4477 100644
--- a/drivers/staging/cxt1e1/musycc.h
+++ b/drivers/staging/cxt1e1/musycc.h
@@ -74,7 +74,7 @@ extern      "C"
 
 #define INT_QUEUE_SIZE    MUSYCC_NIQD
 
-/* RAM image of MUSYCC registers layed out as a C structure */
+/* RAM image of MUSYCC registers laid out as a C structure */
     struct musycc_groupr
     {
         VINT32      thp[32];    /* Transmit Head Pointer [5-29]           */
@@ -96,7 +96,7 @@ extern      "C"
         VINT32      pcd;        /* Port Configuration Descriptor [5-19]   */
     };
 
-/* hardware MUSYCC registers layed out as a C structure */
+/* hardware MUSYCC registers laid out as a C structure */
     struct musycc_globalr
     {
         VINT32      gbp;        /* Group Base Pointer                     */
diff --git a/drivers/staging/cxt1e1/pmcc4_defs.h b/drivers/staging/cxt1e1/pmcc4_defs.h
index 186347b8d565..a39505f45c29 100644
--- a/drivers/staging/cxt1e1/pmcc4_defs.h
+++ b/drivers/staging/cxt1e1/pmcc4_defs.h
@@ -54,8 +54,8 @@
 #define MUSYCC_MTU          2048  /* default */
 #define MUSYCC_TXDESC_MIN   10    /* HDLC mode default */
 #define MUSYCC_RXDESC_MIN   18    /* HDLC mode default */
-#define MUSYCC_TXDESC_TRANS 4     /* Transparent mode minumum # of TX descriptors */
-#define MUSYCC_RXDESC_TRANS 12    /* Transparent mode minumum # of RX descriptors */
+#define MUSYCC_TXDESC_TRANS 4     /* Transparent mode minimum # of TX descriptors */
+#define MUSYCC_RXDESC_TRANS 12    /* Transparent mode minimum # of RX descriptors */
 
 #define MAX_DEFAULT_IFQLEN  32    /* network qlen */
 
diff --git a/drivers/staging/cxt1e1/sbecrc.c b/drivers/staging/cxt1e1/sbecrc.c
index 51232948091f..3f3cd60ac367 100644
--- a/drivers/staging/cxt1e1/sbecrc.c
+++ b/drivers/staging/cxt1e1/sbecrc.c
@@ -95,7 +95,7 @@ sbeCrc (u_int8_t *buffer,          /* data buffer to crc */
 
     /*
      * if table not yet created, do so. Don't care about "extra" time
-     * checking this everytime sbeCrc() is called, since CRC calculations are
+     * checking this every time sbeCrc() is called, since CRC calculations are
      * already time consuming
      */
     if (!crcTableInit)
diff --git a/drivers/staging/cxt1e1/sbeproc.c b/drivers/staging/cxt1e1/sbeproc.c
index 70b9b33f3522..f42531c3d8da 100644
--- a/drivers/staging/cxt1e1/sbeproc.c
+++ b/drivers/staging/cxt1e1/sbeproc.c
@@ -239,7 +239,7 @@ sbecom_proc_get_sbe_info (char *buffer, char **start, off_t offset,
      */
 
 #if 1
-    /* #4 - intepretation of above = set EOF, return len */
+    /* #4 - interpretation of above = set EOF, return len */
     *eof = 1;
 #endif
 
diff --git a/drivers/staging/et131x/et1310_address_map.h b/drivers/staging/et131x/et1310_address_map.h
index e6c8cb3828e9..425e9274f28a 100644
--- a/drivers/staging/et131x/et1310_address_map.h
+++ b/drivers/staging/et131x/et1310_address_map.h
@@ -856,7 +856,7 @@ typedef union _RXMAC_UNI_PF_ADDR3_t {
  */
 
 /*
- * structure for space availiable reg in rxmac address map.
+ * structure for space available reg in rxmac address map.
  * located at address 0x4094
  *
  * 31-17: reserved
@@ -1031,7 +1031,7 @@ typedef struct _RXMAC_t {				/* Location: */
  * 31: reset MII mgmt
  * 30-6: unused
  * 5: scan auto increment
- * 4: preamble supress
+ * 4: preamble suppress
  * 3: undefined
  * 2-0: mgmt clock reset
  */
diff --git a/drivers/staging/et131x/et1310_phy.h b/drivers/staging/et131x/et1310_phy.h
index 78349adc7d8e..946c0c547404 100644
--- a/drivers/staging/et131x/et1310_phy.h
+++ b/drivers/staging/et131x/et1310_phy.h
@@ -468,7 +468,7 @@ typedef union _MI_ANAR_t {
 #define TRUEPHY_ANEG_COMPLETE           1
 #define TRUEPHY_ANEG_DISABLED           2
 
-/* Define duplex advertisment flags */
+/* Define duplex advertisement flags */
 #define TRUEPHY_ADV_DUPLEX_NONE         0x00
 #define TRUEPHY_ADV_DUPLEX_FULL         0x01
 #define TRUEPHY_ADV_DUPLEX_HALF         0x02
diff --git a/drivers/staging/et131x/et1310_rx.c b/drivers/staging/et131x/et1310_rx.c
index 339136f64be1..fc6bd438366d 100644
--- a/drivers/staging/et131x/et1310_rx.c
+++ b/drivers/staging/et131x/et1310_rx.c
@@ -122,7 +122,7 @@ int et131x_rx_dma_memory_alloc(struct et131x_adapter *adapter)
 	 * number of entries in FBR1.
 	 *
 	 * FBR1 holds "large" frames, FBR0 holds "small" frames.  If FBR1
-	 * entries are huge in order to accomodate a "jumbo" frame, then it
+	 * entries are huge in order to accommodate a "jumbo" frame, then it
 	 * will have less entries.  Conversely, FBR1 will now be relied upon
 	 * to carry more "normal" frames, thus it's entry size also increases
 	 * and the number of entries goes up too (since it now carries
diff --git a/drivers/staging/et131x/et131x_isr.c b/drivers/staging/et131x/et131x_isr.c
index ce4d93042679..f716e408712b 100644
--- a/drivers/staging/et131x/et131x_isr.c
+++ b/drivers/staging/et131x/et131x_isr.c
@@ -466,7 +466,7 @@ void et131x_isr_handler(struct work_struct *work)
 		/* Handle SLV Timeout Interrupt */
 		if (status & ET_INTR_SLV_TIMEOUT) {
 			/*
-			 * This means a timeout has occured on a read or
+			 * This means a timeout has occurred on a read or
 			 * write request to one of the JAGCore registers. The
 			 * Global Resources block has terminated the request
 			 * and on a read request, returned a "fake" value.
diff --git a/drivers/staging/et131x/et131x_netdev.c b/drivers/staging/et131x/et131x_netdev.c
index 0c298cae90d9..b25bae29042e 100644
--- a/drivers/staging/et131x/et131x_netdev.c
+++ b/drivers/staging/et131x/et131x_netdev.c
@@ -415,7 +415,7 @@ void et131x_multicast(struct net_device *netdev)
 	 */
 	PacketFilter = adapter->PacketFilter;
 
-	/* Clear the 'multicast' flag locally; becuase we only have a single
+	/* Clear the 'multicast' flag locally; because we only have a single
 	 * flag to check multicast, and multiple multicast addresses can be
 	 * set, this is the easiest way to determine if more than one
 	 * multicast address is being set.
diff --git a/drivers/staging/ft1000/ft1000-pcmcia/ft1000_dev.h b/drivers/staging/ft1000/ft1000-pcmcia/ft1000_dev.h
index 4a89bd1bbf74..0b63f051f27c 100644
--- a/drivers/staging/ft1000/ft1000-pcmcia/ft1000_dev.h
+++ b/drivers/staging/ft1000/ft1000-pcmcia/ft1000_dev.h
@@ -30,7 +30,7 @@
 //---------------------------------------------------------------------------
 //
 // Function:   ft1000_read_reg
-// Descripton: This function will read the value of a given ASIC register.
+// Description: This function will read the value of a given ASIC register.
 // Input:
 //     dev    - device structure
 //     offset - ASIC register offset
@@ -49,7 +49,7 @@ static inline u16 ft1000_read_reg (struct net_device *dev, u16 offset) {
 //---------------------------------------------------------------------------
 //
 // Function:   ft1000_write_reg
-// Descripton: This function will set the value for a given ASIC register.
+// Description: This function will set the value for a given ASIC register.
 // Input:
 //     dev    - device structure
 //     offset - ASIC register offset
diff --git a/drivers/staging/ft1000/ft1000-pcmcia/ft1000_dnld.c b/drivers/staging/ft1000/ft1000-pcmcia/ft1000_dnld.c
index b0729fc3c89a..fb375ea26dd2 100644
--- a/drivers/staging/ft1000/ft1000-pcmcia/ft1000_dnld.c
+++ b/drivers/staging/ft1000/ft1000-pcmcia/ft1000_dnld.c
@@ -95,47 +95,47 @@ void put_request_value(struct net_device *dev, long lvalue);
 USHORT hdr_checksum(PPSEUDO_HDR pHdr);
 
 typedef struct _DSP_FILE_HDR {
-	long build_date;
-	long dsp_coff_date;
-	long loader_code_address;
-	long loader_code_size;
-	long loader_code_end;
-	long dsp_code_address;
-	long dsp_code_size;
-	long dsp_code_end;
-	long reserved[8];
+	u32  build_date;
+	u32  dsp_coff_date;
+	u32  loader_code_address;
+	u32  loader_code_size;
+	u32  loader_code_end;
+	u32  dsp_code_address;
+	u32  dsp_code_size;
+	u32  dsp_code_end;
+	u32  reserved[8];
 } __attribute__ ((packed)) DSP_FILE_HDR, *PDSP_FILE_HDR;
 
 typedef struct _DSP_FILE_HDR_5 {
-	long version_id;	// Version ID of this image format.
-	long package_id;	// Package ID of code release.
-	long build_date;	// Date/time stamp when file was built.
-	long commands_offset;	// Offset to attached commands in Pseudo Hdr format.
-	long loader_offset;	// Offset to bootloader code.
-	long loader_code_address;	// Start address of bootloader.
-	long loader_code_end;	// Where bootloader code ends.
-	long loader_code_size;
-	long version_data_offset;	// Offset were scrambled version data begins.
-	long version_data_size;	// Size, in words, of scrambled version data.
-	long nDspImages;	// Number of DSP images in file.
+	u32  version_id;	// Version ID of this image format.
+	u32  package_id;	// Package ID of code release.
+	u32  build_date;	// Date/time stamp when file was built.
+	u32  commands_offset;	// Offset to attached commands in Pseudo Hdr format.
+	u32  loader_offset;	// Offset to bootloader code.
+	u32  loader_code_address;	// Start address of bootloader.
+	u32  loader_code_end;	// Where bootloader code ends.
+	u32  loader_code_size;
+	u32  version_data_offset;	// Offset were scrambled version data begins.
+	u32  version_data_size;	// Size, in words, of scrambled version data.
+	u32  nDspImages;	// Number of DSP images in file.
 } __attribute__ ((packed)) DSP_FILE_HDR_5, *PDSP_FILE_HDR_5;
 
 typedef struct _DSP_IMAGE_INFO {
-	long coff_date;		// Date/time when DSP Coff image was built.
-	long begin_offset;	// Offset in file where image begins.
-	long end_offset;	// Offset in file where image begins.
-	long run_address;	// On chip Start address of DSP code.
-	long image_size;	// Size of image.
-	long version;		// Embedded version # of DSP code.
+	u32  coff_date;		// Date/time when DSP Coff image was built.
+	u32  begin_offset;	// Offset in file where image begins.
+	u32  end_offset;	// Offset in file where image begins.
+	u32  run_address;	// On chip Start address of DSP code.
+	u32  image_size;	// Size of image.
+	u32  version;		// Embedded version # of DSP code.
 } __attribute__ ((packed)) DSP_IMAGE_INFO, *PDSP_IMAGE_INFO;
 
 typedef struct _DSP_IMAGE_INFO_V6 {
-	long coff_date;		// Date/time when DSP Coff image was built.
-	long begin_offset;	// Offset in file where image begins.
-	long end_offset;	// Offset in file where image begins.
-	long run_address;	// On chip Start address of DSP code.
-	long image_size;	// Size of image.
-	long version;		// Embedded version # of DSP code.
+	u32  coff_date;		// Date/time when DSP Coff image was built.
+	u32  begin_offset;	// Offset in file where image begins.
+	u32  end_offset;	// Offset in file where image begins.
+	u32  run_address;	// On chip Start address of DSP code.
+	u32  image_size;	// Size of image.
+	u32  version;		// Embedded version # of DSP code.
 	unsigned short checksum;	// Dsp File checksum
 	unsigned short pad1;
 } __attribute__ ((packed)) DSP_IMAGE_INFO_V6, *PDSP_IMAGE_INFO_V6;
@@ -846,8 +846,8 @@ int card_download(struct net_device *dev, const u8 *pFileStart, UINT FileLength)
 			break;
 
 		case STATE_DONE_DWNLD:
-			if (((UINT) (pUcFile) - (UINT) pFileStart) >=
-				(UINT) FileLength) {
+			if (((unsigned long) (pUcFile) - (unsigned long) pFileStart) >=
+				(unsigned long) FileLength) {
 				uiState = STATE_DONE_FILE;
 				break;
 			}
@@ -901,11 +901,11 @@ int card_download(struct net_device *dev, const u8 *pFileStart, UINT FileLength)
 								  &info->prov_list);
 						// Move to next entry if available
 						pUcFile =
-							(UCHAR *) ((UINT) pUcFile +
-								   (UINT) ((usHdrLength + 1) & 0xFFFFFFFE) + sizeof(PSEUDO_HDR));
-						if ((UINT) (pUcFile) -
-							(UINT) (pFileStart) >=
-							(UINT) FileLength) {
+							(UCHAR *) ((unsigned long) pUcFile +
+								   (unsigned long) ((usHdrLength + 1) & 0xFFFFFFFE) + sizeof(PSEUDO_HDR));
+						if ((unsigned long) (pUcFile) -
+							(unsigned long) (pFileStart) >=
+							(unsigned long) FileLength) {
 							uiState =
 								STATE_DONE_FILE;
 						}
diff --git a/drivers/staging/ft1000/ft1000-pcmcia/ft1000_hw.c b/drivers/staging/ft1000/ft1000-pcmcia/ft1000_hw.c
index ff691d9b984e..eeb7dd43f9a8 100644
--- a/drivers/staging/ft1000/ft1000-pcmcia/ft1000_hw.c
+++ b/drivers/staging/ft1000/ft1000-pcmcia/ft1000_hw.c
@@ -90,7 +90,7 @@ MODULE_SUPPORTED_DEVICE("FT1000");
 //---------------------------------------------------------------------------
 //
 // Function:   ft1000_asic_read
-// Descripton: This function will retrieve the value of a specific ASIC
+// Description: This function will retrieve the value of a specific ASIC
 //             register.
 // Input:
 //    dev - network device structure
@@ -107,7 +107,7 @@ inline u16 ft1000_asic_read(struct net_device *dev, u16 offset)
 //---------------------------------------------------------------------------
 //
 // Function:   ft1000_asic_write
-// Descripton: This function will set the value of a specific ASIC
+// Description: This function will set the value of a specific ASIC
 //             register.
 // Input:
 //    dev - network device structure
@@ -124,7 +124,7 @@ inline void ft1000_asic_write(struct net_device *dev, u16 offset, u16 value)
 //---------------------------------------------------------------------------
 //
 // Function:   ft1000_read_fifo_len
-// Descripton: This function will read the ASIC Uplink FIFO status register
+// Description: This function will read the ASIC Uplink FIFO status register
 //             which will return the number of bytes remaining in the Uplink FIFO.
 //             Sixteen bytes are subtracted to make sure that the ASIC does not
 //             reach its threshold.
@@ -148,7 +148,7 @@ static inline u16 ft1000_read_fifo_len(struct net_device *dev)
 //---------------------------------------------------------------------------
 //
 // Function:   ft1000_read_dpram
-// Descripton: This function will read the specific area of dpram
+// Description: This function will read the specific area of dpram
 //             (Electrabuzz ASIC only)
 // Input:
 //     dev    - device structure
@@ -175,7 +175,7 @@ u16 ft1000_read_dpram(struct net_device * dev, int offset)
 //---------------------------------------------------------------------------
 //
 // Function:   ft1000_write_dpram
-// Descripton: This function will write to a specific area of dpram
+// Description: This function will write to a specific area of dpram
 //             (Electrabuzz ASIC only)
 // Input:
 //     dev    - device structure
@@ -201,7 +201,7 @@ static inline void ft1000_write_dpram(struct net_device *dev,
 //---------------------------------------------------------------------------
 //
 // Function:   ft1000_read_dpram_mag_16
-// Descripton: This function will read the specific area of dpram
+// Description: This function will read the specific area of dpram
 //             (Magnemite ASIC only)
 // Input:
 //     dev    - device structure
@@ -233,7 +233,7 @@ u16 ft1000_read_dpram_mag_16(struct net_device *dev, int offset, int Index)
 //---------------------------------------------------------------------------
 //
 // Function:   ft1000_write_dpram_mag_16
-// Descripton: This function will write to a specific area of dpram
+// Description: This function will write to a specific area of dpram
 //             (Magnemite ASIC only)
 // Input:
 //     dev    - device structure
@@ -263,7 +263,7 @@ static inline void ft1000_write_dpram_mag_16(struct net_device *dev,
 //---------------------------------------------------------------------------
 //
 // Function:   ft1000_read_dpram_mag_32
-// Descripton: This function will read the specific area of dpram
+// Description: This function will read the specific area of dpram
 //             (Magnemite ASIC only)
 // Input:
 //     dev    - device structure
@@ -290,7 +290,7 @@ u32 ft1000_read_dpram_mag_32(struct net_device *dev, int offset)
 //---------------------------------------------------------------------------
 //
 // Function:   ft1000_write_dpram_mag_32
-// Descripton: This function will write to a specific area of dpram
+// Description: This function will write to a specific area of dpram
 //             (Magnemite ASIC only)
 // Input:
 //     dev    - device structure
@@ -315,7 +315,7 @@ void ft1000_write_dpram_mag_32(struct net_device *dev, int offset, u32 value)
 //---------------------------------------------------------------------------
 //
 // Function:   ft1000_enable_interrupts
-// Descripton: This function will enable interrupts base on the current interrupt mask.
+// Description: This function will enable interrupts base on the current interrupt mask.
 // Input:
 //     dev    - device structure
 // Output:
@@ -340,7 +340,7 @@ static void ft1000_enable_interrupts(struct net_device *dev)
 //---------------------------------------------------------------------------
 //
 // Function:   ft1000_disable_interrupts
-// Descripton: This function will disable all interrupts.
+// Description: This function will disable all interrupts.
 // Input:
 //     dev    - device structure
 // Output:
@@ -364,7 +364,7 @@ static void ft1000_disable_interrupts(struct net_device *dev)
 //---------------------------------------------------------------------------
 //
 // Function:   ft1000_reset_asic
-// Descripton: This function will call the Card Service function to reset the
+// Description: This function will call the Card Service function to reset the
 //             ASIC.
 // Input:
 //     dev    - device structure
@@ -408,7 +408,7 @@ static void ft1000_reset_asic(struct net_device *dev)
 //---------------------------------------------------------------------------
 //
 // Function:   ft1000_reset_card
-// Descripton: This function will reset the card
+// Description: This function will reset the card
 // Input:
 //     dev    - device structure
 // Output:
@@ -571,7 +571,7 @@ static int ft1000_reset_card(struct net_device *dev)
 //---------------------------------------------------------------------------
 //
 // Function:   ft1000_chkcard
-// Descripton: This function will check if the device is presently available on
+// Description: This function will check if the device is presently available on
 //             the system.
 // Input:
 //     dev    - device structure
@@ -607,7 +607,7 @@ static int ft1000_chkcard(struct net_device *dev)
 //---------------------------------------------------------------------------
 //
 // Function:   ft1000_hbchk
-// Descripton: This function will perform the heart beat check of the DSP as
+// Description: This function will perform the heart beat check of the DSP as
 //             well as the ASIC.
 // Input:
 //     dev    - device structure
@@ -828,7 +828,7 @@ static void ft1000_hbchk(u_long data)
 //---------------------------------------------------------------------------
 //
 // Function:   ft1000_send_cmd
-// Descripton:
+// Description:
 // Input:
 // Output:
 //
@@ -908,7 +908,7 @@ void ft1000_send_cmd (struct net_device *dev, u16 *ptempbuffer, int size, u16 qt
 //---------------------------------------------------------------------------
 //
 // Function:   ft1000_receive_cmd
-// Descripton: This function will read a message from the dpram area.
+// Description: This function will read a message from the dpram area.
 // Input:
 //    dev - network device structure
 //    pbuffer - caller supply address to buffer
@@ -1003,7 +1003,7 @@ BOOLEAN ft1000_receive_cmd(struct net_device *dev, u16 * pbuffer, int maxsz, u16
 //---------------------------------------------------------------------------
 //
 // Function:   ft1000_proc_drvmsg
-// Descripton: This function will process the various driver messages.
+// Description: This function will process the various driver messages.
 // Input:
 //     dev    - device structure
 //     pnxtph - pointer to next pseudo header
@@ -1285,7 +1285,7 @@ void ft1000_proc_drvmsg(struct net_device *dev)
 //---------------------------------------------------------------------------
 //
 // Function:   ft1000_parse_dpram_msg
-// Descripton: This function will parse the message received from the DSP
+// Description: This function will parse the message received from the DSP
 //             via the DPRAM interface.
 // Input:
 //     dev    - device structure
@@ -1442,7 +1442,7 @@ int ft1000_parse_dpram_msg(struct net_device *dev)
 //---------------------------------------------------------------------------
 //
 // Function:   ft1000_flush_fifo
-// Descripton: This function will flush one packet from the downlink
+// Description: This function will flush one packet from the downlink
 //             FIFO.
 // Input:
 //     dev      - device structure
@@ -1587,7 +1587,7 @@ static void ft1000_flush_fifo(struct net_device *dev, u16 DrvErrNum)
 //---------------------------------------------------------------------------
 //
 // Function:   ft1000_copy_up_pkt
-// Descripton: This function will pull Flarion packets out of the Downlink
+// Description: This function will pull Flarion packets out of the Downlink
 //             FIFO and convert it to an ethernet packet.  The ethernet packet will
 //             then be deliver to the TCP/IP stack.
 // Input:
@@ -1773,7 +1773,7 @@ int ft1000_copy_up_pkt(struct net_device *dev)
 //---------------------------------------------------------------------------
 //
 // Function:   ft1000_copy_down_pkt
-// Descripton: This function will take an ethernet packet and convert it to
+// Description: This function will take an ethernet packet and convert it to
 //             a Flarion packet prior to sending it to the ASIC Downlink
 //             FIFO.
 // Input:
diff --git a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
index 8e622425aa13..1972b72450d4 100644
--- a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
+++ b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
@@ -488,7 +488,7 @@ static int check_buffers(u16 *buff_w, u16 *buff_r, int len, int offset)
 // Parameters:  struct ft1000_device  - device structure
 //              u16 **pUsFile - DSP image file pointer in u16
 //              u8  **pUcFile - DSP image file pointer in u8
-//              long   word_length - lenght of the buffer to be written
+//              long   word_length - length of the buffer to be written
 //                                   to DPRAM
 //
 // Returns:     STATUS_SUCCESS - success
@@ -628,7 +628,7 @@ static void usb_dnld_complete (struct urb *urb)
 // Parameters:  struct ft1000_device  - device structure
 //              u16 **pUsFile - DSP image file pointer in u16
 //              u8  **pUcFile - DSP image file pointer in u8
-//              long   word_length - lenght of the buffer to be written
+//              long   word_length - length of the buffer to be written
 //                                   to DPRAM
 //
 // Returns:     STATUS_SUCCESS - success
@@ -817,7 +817,7 @@ u16 scram_dnldr(struct ft1000_device *ft1000dev, void *pFileStart,
 						 * Error, beyond boot code range.
 						 */
 						DEBUG
-						    ("FT1000:download:Download error: Requested len=%d exceeds BOOT code boundry.\n",
+						    ("FT1000:download:Download error: Requested len=%d exceeds BOOT code boundary.\n",
 						     (int)word_length);
 						status = STATUS_FAILURE;
 						break;
@@ -950,7 +950,7 @@ u16 scram_dnldr(struct ft1000_device *ft1000dev, void *pFileStart,
 						 * Error, beyond boot code range.
 						 */
 						DEBUG
-						    ("FT1000:download:Download error: Requested len=%d exceeds DSP code boundry.\n",
+						    ("FT1000:download:Download error: Requested len=%d exceeds DSP code boundary.\n",
 						     (int)word_length);
 						status = STATUS_FAILURE;
 						break;
diff --git a/drivers/staging/ft1000/ft1000-usb/ft1000_hw.c b/drivers/staging/ft1000/ft1000-usb/ft1000_hw.c
index 78dcd49bb985..684e69eacb71 100644
--- a/drivers/staging/ft1000/ft1000-usb/ft1000_hw.c
+++ b/drivers/staging/ft1000/ft1000-usb/ft1000_hw.c
@@ -585,7 +585,7 @@ int dsp_reload(struct ft1000_device *ft1000dev)
 //---------------------------------------------------------------------------
 //
 // Function:   ft1000_reset_asic
-// Descripton: This function will call the Card Service function to reset the
+// Description: This function will call the Card Service function to reset the
 //             ASIC.
 // Input:
 //     dev    - device structure
@@ -626,7 +626,7 @@ static void ft1000_reset_asic(struct net_device *dev)
 //---------------------------------------------------------------------------
 //
 // Function:   ft1000_reset_card
-// Descripton: This function will reset the card
+// Description: This function will reset the card
 // Input:
 //     dev    - device structure
 // Output:
@@ -917,7 +917,7 @@ static void ft1000_usb_transmit_complete(struct urb *urb)
 //---------------------------------------------------------------------------
 //
 // Function:   ft1000_copy_down_pkt
-// Descripton: This function will take an ethernet packet and convert it to
+// Description: This function will take an ethernet packet and convert it to
 //             a Flarion packet prior to sending it to the ASIC Downlink
 //             FIFO.
 // Input:
@@ -1075,10 +1075,10 @@ err:
 //---------------------------------------------------------------------------
 //
 // Function:   ft1000_copy_up_pkt
-// Descripton: This function will take a packet from the FIFO up link and
+// Description: This function will take a packet from the FIFO up link and
 //             convert it into an ethernet packet and deliver it to the IP stack
 // Input:
-//     urb - the receving usb urb
+//     urb - the receiving usb urb
 //
 // Output:
 //     status - FAILURE
@@ -1182,7 +1182,7 @@ static int ft1000_copy_up_pkt(struct urb *urb)
 //---------------------------------------------------------------------------
 //
 // Function:   ft1000_submit_rx_urb
-// Descripton: the receiving function of the network driver
+// Description: the receiving function of the network driver
 //
 // Input:
 //     info - a private structure contains the device information
@@ -1316,7 +1316,7 @@ Jim
 //---------------------------------------------------------------------------
 //
 // Function:   ft1000_chkcard
-// Descripton: This function will check if the device is presently available on
+// Description: This function will check if the device is presently available on
 //             the system.
 // Input:
 //     dev    - device structure
@@ -1363,7 +1363,7 @@ static int ft1000_chkcard(struct ft1000_device *dev)
 //---------------------------------------------------------------------------
 //
 // Function:   ft1000_receive_cmd
-// Descripton: This function will read a message from the dpram area.
+// Description: This function will read a message from the dpram area.
 // Input:
 //    dev - network device structure
 //    pbuffer - caller supply address to buffer
diff --git a/drivers/staging/ft1000/ft1000-usb/ft1000_ioctl.h b/drivers/staging/ft1000/ft1000-usb/ft1000_ioctl.h
index 3f72d5bb3f92..6a8a1969f9e1 100644
--- a/drivers/staging/ft1000/ft1000-usb/ft1000_ioctl.h
+++ b/drivers/staging/ft1000/ft1000-usb/ft1000_ioctl.h
@@ -55,7 +55,7 @@ struct pseudo_hdr {
    unsigned char     seq_num;          //sequence number
    unsigned char     rsvd2;            //reserved
    unsigned short    qos_class;        //Quality of Service class (Not applicable on Mobile)
-   unsigned short    checksum;         //Psuedo header checksum
+   unsigned short    checksum;         //Pseudo header checksum
 } __attribute__ ((packed));
 
 typedef struct _IOCTL_GET_VER
diff --git a/drivers/staging/ft1000/ft1000-usb/ft1000_usb.h b/drivers/staging/ft1000/ft1000-usb/ft1000_usb.h
index e047c03fbf3a..f2ecb3eae9cd 100644
--- a/drivers/staging/ft1000/ft1000-usb/ft1000_usb.h
+++ b/drivers/staging/ft1000/ft1000-usb/ft1000_usb.h
@@ -364,7 +364,7 @@ struct prov_record {
 
 #define ISR_EMPTY			(u8)0x00 	 // no bits set in ISR
 
-#define ISR_DOORBELL_ACK	(u8)0x01		 //  the doorbell i sent has been recieved.
+#define ISR_DOORBELL_ACK	(u8)0x01		 //  the doorbell i sent has been received.
 
 #define ISR_DOORBELL_PEND	(u8)0x02 	 //  doorbell for me
 
diff --git a/drivers/staging/generic_serial/generic_serial.c b/drivers/staging/generic_serial/generic_serial.c
index 466988dbc37d..f29dda4e9f20 100644
--- a/drivers/staging/generic_serial/generic_serial.c
+++ b/drivers/staging/generic_serial/generic_serial.c
@@ -113,7 +113,7 @@ int gs_write(struct tty_struct * tty,
 
 		c = count;
  
-		/* This is safe because we "OWN" the "head". Noone else can 
+		/* This is safe because we "OWN" the "head". No one else can 
 		   change the "head": we own the port_write_mutex. */
 		/* Don't overrun the end of the buffer */
 		t = SERIAL_XMIT_SIZE - port->xmit_head;
diff --git a/drivers/staging/generic_serial/rio/map.h b/drivers/staging/generic_serial/rio/map.h
index 8366978578c1..28a66129293e 100644
--- a/drivers/staging/generic_serial/rio/map.h
+++ b/drivers/staging/generic_serial/rio/map.h
@@ -87,7 +87,7 @@ struct Map {
 ** The Topology array contains the ID of the unit connected to each of the
 ** four links on this unit. The entry will be 0xFFFF if NOTHING is connected
 ** to the link, or will be 0xFF00 if an UNKNOWN unit is connected to the link.
-** The Name field is a null-terminated string, upto 31 characters, containing
+** The Name field is a null-terminated string, up to 31 characters, containing
 ** the 'cute' name that the sysadmin/users know the RTA by. It is permissible
 ** for this string to contain any character in the range \040 to \176 inclusive.
 ** In particular, ctrl sequences and DEL (0x7F, \177) are not allowed. The
diff --git a/drivers/staging/generic_serial/rio/rioboot.c b/drivers/staging/generic_serial/rio/rioboot.c
index d956dd316005..ffa01c590216 100644
--- a/drivers/staging/generic_serial/rio/rioboot.c
+++ b/drivers/staging/generic_serial/rio/rioboot.c
@@ -109,7 +109,7 @@ int RIOBootCodeRTA(struct rio_info *p, struct DownLoad * rbp)
 	rio_dprintk(RIO_DEBUG_BOOT, "Data at user address %p\n", rbp->DataP);
 
 	/*
-	 ** Check that we have set asside enough memory for this
+	 ** Check that we have set aside enough memory for this
 	 */
 	if (rbp->Count > SIXTY_FOUR_K) {
 		rio_dprintk(RIO_DEBUG_BOOT, "RTA Boot Code Too Large!\n");
@@ -293,7 +293,7 @@ int RIOBootCodeHOST(struct rio_info *p, struct DownLoad *rbp)
 		/*
 		 **                     S T O P !
 		 **
-		 ** Upto this point the code has been fairly rational, and possibly
+		 ** Up to this point the code has been fairly rational, and possibly
 		 ** even straight forward. What follows is a pile of crud that will
 		 ** magically turn into six bytes of transputer assembler. Normally
 		 ** you would expect an array or something, but, being me, I have
@@ -419,7 +419,7 @@ int RIOBootCodeHOST(struct rio_info *p, struct DownLoad *rbp)
 		rio_dprintk(RIO_DEBUG_BOOT, "Set control port\n");
 
 		/*
-		 ** Now, wait for upto five seconds for the Tp to setup the parmmap
+		 ** Now, wait for up to five seconds for the Tp to setup the parmmap
 		 ** pointer:
 		 */
 		for (wait_count = 0; (wait_count < p->RIOConf.StartupTime) && (readw(&HostP->__ParmMapR) == OldParmMap); wait_count++) {
@@ -475,7 +475,7 @@ int RIOBootCodeHOST(struct rio_info *p, struct DownLoad *rbp)
 
 		/*
 		 ** now wait for the card to set all the parmmap->XXX stuff
-		 ** this is a wait of upto two seconds....
+		 ** this is a wait of up to two seconds....
 		 */
 		rio_dprintk(RIO_DEBUG_BOOT, "Looking for init_done - %d ticks\n", p->RIOConf.StartupTime);
 		HostP->timeout_id = 0;
diff --git a/drivers/staging/generic_serial/rio/riocmd.c b/drivers/staging/generic_serial/rio/riocmd.c
index f121357e5af0..61efd538e850 100644
--- a/drivers/staging/generic_serial/rio/riocmd.c
+++ b/drivers/staging/generic_serial/rio/riocmd.c
@@ -863,7 +863,7 @@ int RIOUnUse(unsigned long iPortP, struct CmdBlk *CmdBlkP)
 	 ** being transferred from the write queue into the transmit packets
 	 ** (add_transmit) and no furthur transmit interrupt will be sent for that
 	 ** data. The next interrupt will occur up to 500ms later (RIOIntr is called
-	 ** twice a second as a saftey measure). This was the case when kermit was
+	 ** twice a second as a safety measure). This was the case when kermit was
 	 ** used to send data into a RIO port. After each packet was sent, TCFLSH
 	 ** was called to flush the read queue preemptively. PortP->InUse was
 	 ** incremented, thereby blocking the 6 byte acknowledgement packet
diff --git a/drivers/staging/generic_serial/rio/rioroute.c b/drivers/staging/generic_serial/rio/rioroute.c
index f9b936ac3394..8757378e8320 100644
--- a/drivers/staging/generic_serial/rio/rioroute.c
+++ b/drivers/staging/generic_serial/rio/rioroute.c
@@ -450,7 +450,7 @@ int RIORouteRup(struct rio_info *p, unsigned int Rup, struct Host *HostP, struct
 		 ** we reset the unit, because we didn't boot it.
 		 ** However, if the table is full, it could be that we did boot
 		 ** this unit, and so we won't reboot it, because it isn't really
-		 ** all that disasterous to keep the old bins in most cases. This
+		 ** all that disastrous to keep the old bins in most cases. This
 		 ** is a rather tacky feature, but we are on the edge of reallity
 		 ** here, because the implication is that someone has connected
 		 ** 16+MAX_EXTRA_UNITS onto one host.
@@ -678,7 +678,7 @@ static int RIOCheck(struct Host *HostP, unsigned int UnitId)
 
 	HostP->Mapping[UnitId].Flags &= ~BEEN_HERE;
 
-	/* rio_dprint(RIO_DEBUG_ROUTE, ("Unit %d DOESNT KNOW THE HOST!\n", UnitId)); */
+	/* rio_dprint(RIO_DEBUG_ROUTE, ("Unit %d DOESN'T KNOW THE HOST!\n", UnitId)); */
 
 	return 0;
 }
diff --git a/drivers/staging/generic_serial/rio/riotty.c b/drivers/staging/generic_serial/rio/riotty.c
index 8a90393faf3c..e7e9911d7a72 100644
--- a/drivers/staging/generic_serial/rio/riotty.c
+++ b/drivers/staging/generic_serial/rio/riotty.c
@@ -124,7 +124,7 @@ int riotopen(struct tty_struct *tty, struct file *filp)
 	}
 
 	/*
-	 ** Grab pointer to the port stucture
+	 ** Grab pointer to the port structure
 	 */
 	PortP = p->RIOPortp[SysPort];	/* Get control struc */
 	rio_dprintk(RIO_DEBUG_TTY, "PortP: %p\n", PortP);
@@ -161,7 +161,7 @@ int riotopen(struct tty_struct *tty, struct file *filp)
 	}
 
 	/*
-	 ** If the RTA has not booted yet and the user has choosen to block
+	 ** If the RTA has not booted yet and the user has chosen to block
 	 ** until the RTA is present then we must spin here waiting for
 	 ** the RTA to boot.
 	 */
diff --git a/drivers/staging/generic_serial/sx.c b/drivers/staging/generic_serial/sx.c
index 1291462bcddb..4f94aaffbe83 100644
--- a/drivers/staging/generic_serial/sx.c
+++ b/drivers/staging/generic_serial/sx.c
@@ -158,13 +158,13 @@
  * Readying for release on 2.0.x (sorry David, 1.01 becomes 1.1 for RCS). 
  *
  * Revision 0.12  1999/03/28 09:20:10  wolff
- * Fixed problem in 0.11, continueing cleanup.
+ * Fixed problem in 0.11, continuing cleanup.
  *
  * Revision 0.11  1999/03/28 08:46:44  wolff
  * cleanup. Not good.
  *
  * Revision 0.10  1999/03/28 08:09:43  wolff
- * Fixed loosing characters on close.
+ * Fixed losing characters on close.
  *
  * Revision 0.9  1999/03/21 22:52:01  wolff
  * Ported back to 2.2.... (minor things)
@@ -1588,7 +1588,7 @@ static void sx_close(void *ptr)
 #define R0		if (read_sx_byte(board, i) != 0x55) return 1
 #define R1		if (read_sx_byte(board, i) != 0xaa) return 1
 
-/* This memtest takes a human-noticable time. You normally only do it
+/* This memtest takes a human-noticeable time. You normally only do it
    once a boot, so I guess that it is worth it. */
 static int do_memtest(struct sx_board *board, int min, int max)
 {
@@ -1645,7 +1645,7 @@ static int do_memtest(struct sx_board *board, int min, int max)
 #define R1		if (read_sx_word(board, i) != 0xaa55) return 1
 
 #if 0
-/* This memtest takes a human-noticable time. You normally only do it
+/* This memtest takes a human-noticeable time. You normally only do it
    once a boot, so I guess that it is worth it. */
 static int do_memtest_w(struct sx_board *board, int min, int max)
 {
diff --git a/drivers/staging/gma500/psb_drm.h b/drivers/staging/gma500/psb_drm.h
index fb9b4245bada..a339406052ef 100644
--- a/drivers/staging/gma500/psb_drm.h
+++ b/drivers/staging/gma500/psb_drm.h
@@ -131,7 +131,7 @@ struct drm_psb_reloc {
 	u32 pre_add;	/* Destination format: */
 	u32 background;	/* Destination add */
 	u32 dst_buffer;	/* Destination buffer. Index into buffer_list */
-	u32 arg0;		/* Reloc-op dependant */
+	u32 arg0;		/* Reloc-op dependent */
 	u32 arg1;
 };
 
diff --git a/drivers/staging/gma500/psb_drv.c b/drivers/staging/gma500/psb_drv.c
index 44cd095d2862..d01d45e7a14d 100644
--- a/drivers/staging/gma500/psb_drv.c
+++ b/drivers/staging/gma500/psb_drv.c
@@ -561,7 +561,7 @@ static int psb_driver_unload(struct drm_device *dev)
 		kfree(dev_priv);
 		dev->dev_private = NULL;
 
-		/*destory VBT data*/
+		/*destroy VBT data*/
 		psb_intel_destroy_bios(dev);
 	}
 
diff --git a/drivers/staging/gma500/psb_intel_bios.c b/drivers/staging/gma500/psb_intel_bios.c
index f5bcd119b87d..48ac8ba7f40b 100644
--- a/drivers/staging/gma500/psb_intel_bios.c
+++ b/drivers/staging/gma500/psb_intel_bios.c
@@ -271,7 +271,7 @@ bool psb_intel_init_bios(struct drm_device *dev)
 }
 
 /**
- * Destory and free VBT data
+ * Destroy and free VBT data
  */
 void psb_intel_destroy_bios(struct drm_device *dev)
 {
diff --git a/drivers/staging/gma500/psb_intel_sdvo.c b/drivers/staging/gma500/psb_intel_sdvo.c
index 731a5a2261d3..1d2bb021c0a5 100644
--- a/drivers/staging/gma500/psb_intel_sdvo.c
+++ b/drivers/staging/gma500/psb_intel_sdvo.c
@@ -573,7 +573,7 @@ static bool psb_sdvo_set_current_inoutmap(struct psb_intel_output *output,
 	/* Make all fields of the  args/ret to zero */
 	memset(byArgs, 0, sizeof(byArgs));
 
-	/* Fill up the arguement values; */
+	/* Fill up the argument values; */
 	byArgs[0] = (u8) (in0outputmask & 0xFF);
 	byArgs[1] = (u8) ((in0outputmask >> 8) & 0xFF);
 	byArgs[2] = (u8) (in1outputmask & 0xFF);
diff --git a/drivers/staging/gma500/psb_intel_sdvo_regs.h b/drivers/staging/gma500/psb_intel_sdvo_regs.h
index a1d1475a9315..c7107a37e33d 100644
--- a/drivers/staging/gma500/psb_intel_sdvo_regs.h
+++ b/drivers/staging/gma500/psb_intel_sdvo_regs.h
@@ -217,7 +217,7 @@ struct psb_intel_sdvo_set_target_input_args {
 } __attribute__ ((packed));
 
 /**
- * Takes a struct psb_intel_sdvo_output_flags of which outputs are targetted by
+ * Takes a struct psb_intel_sdvo_output_flags of which outputs are targeted by
  * future output commands.
  *
  * Affected commands inclue SET_OUTPUT_TIMINGS_PART[12],
diff --git a/drivers/staging/gma500/psb_ttm_fence_user.h b/drivers/staging/gma500/psb_ttm_fence_user.h
index fc13f89c6e12..762a05728632 100644
--- a/drivers/staging/gma500/psb_ttm_fence_user.h
+++ b/drivers/staging/gma500/psb_ttm_fence_user.h
@@ -130,7 +130,7 @@ struct ttm_fence_unref_arg {
 };
 
 /*
- * Ioctl offsets frome extenstion start.
+ * Ioctl offsets from extenstion start.
  */
 
 #define TTM_FENCE_SIGNALED 0x01
diff --git a/drivers/staging/go7007/go7007.txt b/drivers/staging/go7007/go7007.txt
index 06a76da32128..9db1f3952fd2 100644
--- a/drivers/staging/go7007/go7007.txt
+++ b/drivers/staging/go7007/go7007.txt
@@ -2,7 +2,7 @@ This is a driver for the WIS GO7007SB multi-format video encoder.
 
 Pete Eberlein <pete@sensoray.com>
 
-The driver was orignally released under the GPL and is currently hosted at:
+The driver was originally released under the GPL and is currently hosted at:
 http://nikosapi.org/wiki/index.php/WIS_Go7007_Linux_driver
 The go7007 firmware can be acquired from the package on the site above.
 
diff --git a/drivers/staging/hv/blkvsc_drv.c b/drivers/staging/hv/blkvsc_drv.c
index af789937be4e..68ad17d67098 100644
--- a/drivers/staging/hv/blkvsc_drv.c
+++ b/drivers/staging/hv/blkvsc_drv.c
@@ -894,7 +894,7 @@ static int blkvsc_submit_request(struct blkvsc_request *blkvsc_req,
 
 /*
  * We break the request into 1 or more blkvsc_requests and submit
- * them.  If we cant submit them all, we put them on the
+ * them.  If we can't submit them all, we put them on the
  * pending_list. The blkvsc_request() will work on the pending_list.
  */
 static int blkvsc_do_request(struct block_device_context *blkdev,
diff --git a/drivers/staging/hv/channel.c b/drivers/staging/hv/channel.c
index 775a52a91222..f7ce7d2494b3 100644
--- a/drivers/staging/hv/channel.c
+++ b/drivers/staging/hv/channel.c
@@ -81,14 +81,14 @@ static void vmbus_setevent(struct vmbus_channel *channel)
 
 	if (channel->offermsg.monitor_allocated) {
 		/* Each u32 represents 32 channels */
-		set_bit(channel->offermsg.child_relid & 31,
+		sync_set_bit(channel->offermsg.child_relid & 31,
 			(unsigned long *) vmbus_connection.send_int_page +
 			(channel->offermsg.child_relid >> 5));
 
 		monitorpage = vmbus_connection.monitor_pages;
 		monitorpage++; /* Get the child to parent monitor page */
 
-		set_bit(channel->monitor_bit,
+		sync_set_bit(channel->monitor_bit,
 			(unsigned long *)&monitorpage->trigger_group
 					[channel->monitor_grp].pending);
 
@@ -104,7 +104,7 @@ static void VmbusChannelClearEvent(struct vmbus_channel *channel)
 
 	if (Channel->offermsg.monitor_allocated) {
 		/* Each u32 represents 32 channels */
-		clear_bit(Channel->offermsg.child_relid & 31,
+		sync_clear_bit(Channel->offermsg.child_relid & 31,
 			  (unsigned long *)vmbus_connection.send_int_page +
 			  (Channel->offermsg.child_relid >> 5));
 
@@ -112,7 +112,7 @@ static void VmbusChannelClearEvent(struct vmbus_channel *channel)
 			vmbus_connection.monitor_pages;
 		monitorPage++; /* Get the child to parent monitor page */
 
-		clear_bit(Channel->monitor_bit,
+		sync_clear_bit(Channel->monitor_bit,
 			  (unsigned long *)&monitorPage->trigger_group
 					[Channel->monitor_grp].Pending);
 	}
diff --git a/drivers/staging/hv/channel_mgmt.c b/drivers/staging/hv/channel_mgmt.c
index bc0393a41d29..06b573227e8d 100644
--- a/drivers/staging/hv/channel_mgmt.c
+++ b/drivers/staging/hv/channel_mgmt.c
@@ -166,7 +166,7 @@ EXPORT_SYMBOL(prep_negotiate_resp);
  * from Hyper-V. This stub responds to the default negotiate messages
  * that come in for every non IDE/SCSI/Network request.
  * This behavior is normally overwritten in the hv_utils driver. That
- * driver handles requests like gracefull shutdown, heartbeats etc.
+ * driver handles requests like graceful shutdown, heartbeats etc.
  *
  * Mainly used by Hyper-V drivers.
  */
diff --git a/drivers/staging/hv/connection.c b/drivers/staging/hv/connection.c
index 44b203b95a22..afc8116e7aa4 100644
--- a/drivers/staging/hv/connection.c
+++ b/drivers/staging/hv/connection.c
@@ -296,7 +296,7 @@ void vmbus_on_event(unsigned long data)
 		for (dword = 0; dword < maxdword; dword++) {
 			if (recv_int_page[dword]) {
 				for (bit = 0; bit < 32; bit++) {
-					if (test_and_clear_bit(bit,
+					if (sync_test_and_clear_bit(bit,
 						(unsigned long *)
 						&recv_int_page[dword])) {
 						relid = (dword << 5) + bit;
@@ -338,7 +338,7 @@ int vmbus_post_msg(void *buffer, size_t buflen)
 int vmbus_set_event(u32 child_relid)
 {
 	/* Each u32 represents 32 channels */
-	set_bit(child_relid & 31,
+	sync_set_bit(child_relid & 31,
 		(unsigned long *)vmbus_connection.send_int_page +
 		(child_relid >> 5));
 
diff --git a/drivers/staging/hv/hv.c b/drivers/staging/hv/hv.c
index 2d492adb95bb..0b06f4fe5838 100644
--- a/drivers/staging/hv/hv.c
+++ b/drivers/staging/hv/hv.c
@@ -37,7 +37,7 @@ struct hv_context hv_context = {
 
 /*
  * query_hypervisor_presence
- * - Query the cpuid for presense of windows hypervisor
+ * - Query the cpuid for presence of windows hypervisor
  */
 static int query_hypervisor_presence(void)
 {
diff --git a/drivers/staging/hv/hv_api.h b/drivers/staging/hv/hv_api.h
index 7114fceab21e..43a722888dc4 100644
--- a/drivers/staging/hv/hv_api.h
+++ b/drivers/staging/hv/hv_api.h
@@ -53,14 +53,14 @@ struct hv_guid {
 
 /*
  * HV_STATUS_INVALID_ALIGNMENT
- * The hypervisor could not perform the operation beacuse a parameter has an
+ * The hypervisor could not perform the operation because a parameter has an
  * invalid alignment.
  */
 #define HV_STATUS_INVALID_ALIGNMENT			((u16)0x0004)
 
 /*
  * HV_STATUS_INVALID_PARAMETER
- * The hypervisor could not perform the operation beacuse an invalid parameter
+ * The hypervisor could not perform the operation because an invalid parameter
  * was specified.
  */
 #define HV_STATUS_INVALID_PARAMETER			((u16)0x0005)
diff --git a/drivers/staging/hv/hv_kvp.h b/drivers/staging/hv/hv_kvp.h
index e069f59b5135..8c402f357d37 100644
--- a/drivers/staging/hv/hv_kvp.h
+++ b/drivers/staging/hv/hv_kvp.h
@@ -36,7 +36,7 @@
  * registry.
  *
  * Note:  This value is used in defining the KVP exchange message - this value
- * cannot be modified without affecting the message size and compatability.
+ * cannot be modified without affecting the message size and compatibility.
  */
 
 /*
diff --git a/drivers/staging/hv/hv_mouse.c b/drivers/staging/hv/hv_mouse.c
index 50147f84741c..118c7be22562 100644
--- a/drivers/staging/hv/hv_mouse.c
+++ b/drivers/staging/hv/hv_mouse.c
@@ -14,6 +14,7 @@
  */
 #include <linux/init.h>
 #include <linux/module.h>
+#include <linux/delay.h>
 #include <linux/device.h>
 #include <linux/workqueue.h>
 #include <linux/sched.h>
@@ -23,6 +24,7 @@
 #include <linux/hiddev.h>
 #include <linux/pci.h>
 #include <linux/dmi.h>
+#include <linux/delay.h>
 
 #include "hv_api.h"
 #include "logging.h"
@@ -374,7 +376,7 @@ static void MousevscOnReceiveDeviceInfo(struct mousevsc_dev *InputDevice, struct
 	       desc->desc[0].wDescriptorLength);
 
 	/* Send the ack */
-	memset(&ack, sizeof(struct mousevsc_prt_msg), 0);
+	memset(&ack, 0, sizeof(struct mousevsc_prt_msg));
 
 	ack.type = PipeMessageData;
 	ack.size = sizeof(struct synthhid_device_info_ack);
@@ -595,7 +597,7 @@ static int MousevscConnectToVsp(struct hv_device *Device)
 	/*
 	 * Now, initiate the vsc/vsp initialization protocol on the open channel
 	 */
-	memset(request, sizeof(struct mousevsc_prt_msg), 0);
+	memset(request, 0, sizeof(struct mousevsc_prt_msg));
 
 	request->type = PipeMessageData;
 	request->size = sizeof(struct synthhid_protocol_request);
diff --git a/drivers/staging/hv/hv_util.c b/drivers/staging/hv/hv_util.c
index 4792f2c402b2..2df15683f8fa 100644
--- a/drivers/staging/hv/hv_util.c
+++ b/drivers/staging/hv/hv_util.c
@@ -80,7 +80,7 @@ static void shutdown_onchannelcallback(void *context)
 				execute_shutdown = true;
 
 				DPRINT_INFO(VMBUS, "Shutdown request received -"
-					    " gracefull shutdown initiated");
+					    " graceful shutdown initiated");
 				break;
 			default:
 				icmsghdrp->status = HV_E_FAIL;
diff --git a/drivers/staging/hv/netvsc_drv.c b/drivers/staging/hv/netvsc_drv.c
index 2d40f5f86b24..33973568214f 100644
--- a/drivers/staging/hv/netvsc_drv.c
+++ b/drivers/staging/hv/netvsc_drv.c
@@ -46,6 +46,7 @@ struct net_device_context {
 	/* point back to our device context */
 	struct hv_device *device_ctx;
 	unsigned long avail;
+	struct work_struct work;
 };
 
 
@@ -219,6 +220,7 @@ static void netvsc_linkstatus_callback(struct hv_device *device_obj,
 				       unsigned int status)
 {
 	struct net_device *net = dev_get_drvdata(&device_obj->device);
+	struct net_device_context *ndev_ctx;
 
 	if (!net) {
 		DPRINT_ERR(NETVSC_DRV, "got link status but net device "
@@ -230,6 +232,8 @@ static void netvsc_linkstatus_callback(struct hv_device *device_obj,
 		netif_carrier_on(net);
 		netif_wake_queue(net);
 		netif_notify_peers(net);
+		ndev_ctx = netdev_priv(net);
+		schedule_work(&ndev_ctx->work);
 	} else {
 		netif_carrier_off(net);
 		netif_stop_queue(net);
@@ -328,6 +332,25 @@ static const struct net_device_ops device_ops = {
 	.ndo_set_mac_address =		eth_mac_addr,
 };
 
+/*
+ * Send GARP packet to network peers after migrations.
+ * After Quick Migration, the network is not immediately operational in the
+ * current context when receiving RNDIS_STATUS_MEDIA_CONNECT event. So, add
+ * another netif_notify_peers() into a scheduled work, otherwise GARP packet
+ * will not be sent after quick migration, and cause network disconnection.
+ */
+static void netvsc_send_garp(struct work_struct *w)
+{
+	struct net_device_context *ndev_ctx;
+	struct net_device *net;
+
+	msleep(20);
+	ndev_ctx = container_of(w, struct net_device_context, work);
+	net = dev_get_drvdata(&ndev_ctx->device_ctx->device);
+	netif_notify_peers(net);
+}
+
+
 static int netvsc_probe(struct device *device)
 {
 	struct hv_driver *drv =
@@ -353,6 +376,7 @@ static int netvsc_probe(struct device *device)
 	net_device_ctx->device_ctx = device_obj;
 	net_device_ctx->avail = ring_size;
 	dev_set_drvdata(device, net);
+	INIT_WORK(&net_device_ctx->work, netvsc_send_garp);
 
 	/* Notify the netvsc driver of the new device */
 	ret = net_drv_obj->base.dev_add(device_obj, &device_info);
diff --git a/drivers/staging/hv/rndis_filter.c b/drivers/staging/hv/rndis_filter.c
index e7189cd324ca..048376b2b676 100644
--- a/drivers/staging/hv/rndis_filter.c
+++ b/drivers/staging/hv/rndis_filter.c
@@ -585,7 +585,7 @@ static int rndis_filter_set_packet_filter(struct rndis_device *dev,
 		ret = -1;
 		DPRINT_ERR(NETVSC, "timeout before we got a set response...");
 		/*
-		 * We cant deallocate the request since we may still receive a
+		 * We can't deallocate the request since we may still receive a
 		 * send completion for it.
 		 */
 		goto Exit;
diff --git a/drivers/staging/hv/tools/hv_kvp_daemon.c b/drivers/staging/hv/tools/hv_kvp_daemon.c
index f5a2dd694611..33f0f1c8ad73 100644
--- a/drivers/staging/hv/tools/hv_kvp_daemon.c
+++ b/drivers/staging/hv/tools/hv_kvp_daemon.c
@@ -102,22 +102,22 @@ static char kvp_send_buffer[4096];
 static char kvp_recv_buffer[4096];
 static struct sockaddr_nl addr;
 
-static char os_name[100];
-static char os_major[50];
-static char os_minor[50];
-static char processor_arch[50];
-static char os_build[100];
+static char *os_name = "";
+static char *os_major = "";
+static char *os_minor = "";
+static char *processor_arch;
+static char *os_build;
 static char *lic_version;
+static struct utsname uts_buf;
 
 void kvp_get_os_info(void)
 {
 	FILE	*file;
-	char	*eol;
-	struct utsname buf;
+	char	*p, buf[512];
 
-	uname(&buf);
-	strcpy(os_build, buf.release);
-	strcpy(processor_arch, buf.machine);
+	uname(&uts_buf);
+	os_build = uts_buf.release;
+	processor_arch= uts_buf.machine;
 
 	file = fopen("/etc/SuSE-release", "r");
 	if (file != NULL)
@@ -132,21 +132,46 @@ void kvp_get_os_info(void)
 	/*
 	 * We don't have information about the os.
 	 */
-	strcpy(os_name, "Linux");
-	strcpy(os_major, "0");
-	strcpy(os_minor, "0");
+	os_name = uts_buf.sysname;
 	return;
 
 kvp_osinfo_found:
-	fgets(os_name, 99, file);
-	eol = index(os_name, '\n');
-	*eol = '\0';
-	fgets(os_major, 49, file);
-	eol = index(os_major, '\n');
-	*eol = '\0';
-	fgets(os_minor, 49, file);
-	eol = index(os_minor, '\n');
-	*eol = '\0';
+	/* up to three lines */
+	p = fgets(buf, sizeof(buf), file);
+	if (p) {
+		p = strchr(buf, '\n');
+		if (p)
+			*p = '\0';
+		p = strdup(buf);
+		if (!p)
+			goto done;
+		os_name = p;
+
+		/* second line */
+		p = fgets(buf, sizeof(buf), file);
+		if (p) {
+			p = strchr(buf, '\n');
+			if (p)
+				*p = '\0';
+			p = strdup(buf);
+			if (!p)
+				goto done;
+			os_major = p;
+
+			/* third line */
+			p = fgets(buf, sizeof(buf), file);
+			if (p)  {
+				p = strchr(buf, '\n');
+				if (p)
+					*p = '\0';
+				p = strdup(buf);
+				if (p)
+					os_minor = p;
+			}
+		}
+	}
+
+done:
 	fclose(file);
 	return;
 }
@@ -202,7 +227,7 @@ kvp_get_ip_address(int family, char *buffer, int length)
 
 			/*
 			 * We only support AF_INET and AF_INET6
-			 * and the list of addresses is seperated by a ";".
+			 * and the list of addresses is separated by a ";".
 			 */
 				struct sockaddr_in6 *addr =
 				(struct sockaddr_in6 *) curp->ifa_addr;
@@ -293,7 +318,7 @@ netlink_send(int fd, struct cn_msg *msg)
 	return sendmsg(fd, &message, 0);
 }
 
-main(void)
+int main(void)
 {
 	int fd, len, sock_opt;
 	int error;
@@ -301,9 +326,10 @@ main(void)
 	struct pollfd pfd;
 	struct nlmsghdr *incoming_msg;
 	struct cn_msg	*incoming_cn_msg;
+	struct hv_ku_msg *hv_msg;
+	char	*p;
 	char	*key_value;
 	char	*key_name;
-	int	 key_index;
 
 	daemon(1, 0);
 	openlog("KVP", 0, LOG_USER);
@@ -373,9 +399,10 @@ main(void)
 			 * Driver is registering with us; stash away the version
 			 * information.
 			 */
-			lic_version = malloc(strlen(incoming_cn_msg->data) + 1);
+			p = (char *)incoming_cn_msg->data;
+			lic_version = malloc(strlen(p) + 1);
 			if (lic_version) {
-				strcpy(lic_version, incoming_cn_msg->data);
+				strcpy(lic_version, p);
 				syslog(LOG_INFO, "KVP LIC Version: %s",
 					lic_version);
 			} else {
@@ -389,14 +416,11 @@ main(void)
 			continue;
 		}
 
-		key_index =
-		((struct hv_ku_msg *)incoming_cn_msg->data)->kvp_index;
-		key_name =
-		((struct hv_ku_msg *)incoming_cn_msg->data)->kvp_key;
-		key_value =
-		((struct hv_ku_msg *)incoming_cn_msg->data)->kvp_value;
+		hv_msg = (struct hv_ku_msg *)incoming_cn_msg->data;
+		key_name = (char *)hv_msg->kvp_key;
+		key_value = (char *)hv_msg->kvp_value;
 
-		switch (key_index) {
+		switch (hv_msg->kvp_index) {
 		case FullyQualifiedDomainName:
 			kvp_get_domain_name(key_value,
 					HV_KVP_EXCHANGE_MAX_VALUE_SIZE);
diff --git a/drivers/staging/hv/vmbus_drv.c b/drivers/staging/hv/vmbus_drv.c
index b473f468dd83..79089f85d903 100644
--- a/drivers/staging/hv/vmbus_drv.c
+++ b/drivers/staging/hv/vmbus_drv.c
@@ -254,7 +254,7 @@ static int vmbus_on_isr(void)
 	event = (union hv_synic_event_flags *)page_addr + VMBUS_MESSAGE_SINT;
 
 	/* Since we are a child, we only need to check bit 0 */
-	if (test_and_clear_bit(0, (unsigned long *) &event->flags32[0])) {
+	if (sync_test_and_clear_bit(0, (unsigned long *) &event->flags32[0])) {
 		DPRINT_DBG(VMBUS, "received event %d", event->flags32[0]);
 		ret |= 0x2;
 	}
diff --git a/drivers/staging/hv/vmbus_private.h b/drivers/staging/hv/vmbus_private.h
index ca050a499b99..6f0d8df5e178 100644
--- a/drivers/staging/hv/vmbus_private.h
+++ b/drivers/staging/hv/vmbus_private.h
@@ -31,6 +31,7 @@
 #include "channel_mgmt.h"
 #include "ring_buffer.h"
 #include <linux/list.h>
+#include <asm/sync_bitops.h>
 
 
 /*
diff --git a/drivers/staging/iio/Documentation/iio_utils.h b/drivers/staging/iio/Documentation/iio_utils.h
index 8095727b3966..fd78e4ff99ae 100644
--- a/drivers/staging/iio/Documentation/iio_utils.h
+++ b/drivers/staging/iio/Documentation/iio_utils.h
@@ -556,7 +556,7 @@ int _write_sysfs_string(char *filename, char *basedir, char *val, int verify)
 		if (strcmp(temp, val) != 0) {
 			printf("Possible failure in string write of %s "
 				"Should be %s "
-				"writen to %s\%s\n",
+				"written to %s\%s\n",
 				temp,
 				val,
 				basedir,
diff --git a/drivers/staging/iio/accel/adis16201.h b/drivers/staging/iio/accel/adis16201.h
index c9bf22c13428..23fe54d09d12 100644
--- a/drivers/staging/iio/accel/adis16201.h
+++ b/drivers/staging/iio/accel/adis16201.h
@@ -70,7 +70,7 @@
  * @indio_dev:		industrial I/O device structure
  * @trig:		data ready trigger registered with iio
  * @tx:			transmit buffer
- * @rx:			recieve buffer
+ * @rx:			receive buffer
  * @buf_lock:		mutex to protect tx and rx
  **/
 struct adis16201_state {
diff --git a/drivers/staging/iio/accel/adis16203.h b/drivers/staging/iio/accel/adis16203.h
index b39323eac9e3..b88688128d61 100644
--- a/drivers/staging/iio/accel/adis16203.h
+++ b/drivers/staging/iio/accel/adis16203.h
@@ -65,7 +65,7 @@
  * @indio_dev:		industrial I/O device structure
  * @trig:		data ready trigger registered with iio
  * @tx:			transmit buffer
- * @rx:			recieve buffer
+ * @rx:			receive buffer
  * @buf_lock:		mutex to protect tx and rx
  **/
 struct adis16203_state {
diff --git a/drivers/staging/iio/accel/adis16204.h b/drivers/staging/iio/accel/adis16204.h
index e9ed7cb048cf..e61844684f99 100644
--- a/drivers/staging/iio/accel/adis16204.h
+++ b/drivers/staging/iio/accel/adis16204.h
@@ -73,7 +73,7 @@
  * @indio_dev:		industrial I/O device structure
  * @trig:		data ready trigger registered with iio
  * @tx:			transmit buffer
- * @rx:			recieve buffer
+ * @rx:			receive buffer
  * @buf_lock:		mutex to protect tx and rx
  **/
 struct adis16204_state {
diff --git a/drivers/staging/iio/accel/adis16209.h b/drivers/staging/iio/accel/adis16209.h
index 4e97596620ef..8b0da1349555 100644
--- a/drivers/staging/iio/accel/adis16209.h
+++ b/drivers/staging/iio/accel/adis16209.h
@@ -109,7 +109,7 @@
  * @indio_dev:		industrial I/O device structure
  * @trig:		data ready trigger registered with iio
  * @tx:			transmit buffer
- * @rx:			recieve buffer
+ * @rx:			receive buffer
  * @buf_lock:		mutex to protect tx and rx
  **/
 struct adis16209_state {
diff --git a/drivers/staging/iio/accel/adis16220.h b/drivers/staging/iio/accel/adis16220.h
index 7013314a9d77..4d5758c2c047 100644
--- a/drivers/staging/iio/accel/adis16220.h
+++ b/drivers/staging/iio/accel/adis16220.h
@@ -132,7 +132,7 @@
  * @indio_dev:		industrial I/O device structure
  * @trig:		data ready trigger registered with iio
  * @tx:			transmit buffer
- * @rx:			recieve buffer
+ * @rx:			receive buffer
  * @buf_lock:		mutex to protect tx and rx
  **/
 struct adis16220_state {
diff --git a/drivers/staging/iio/accel/adis16240.h b/drivers/staging/iio/accel/adis16240.h
index 51a807dde27c..76a45797b9dd 100644
--- a/drivers/staging/iio/accel/adis16240.h
+++ b/drivers/staging/iio/accel/adis16240.h
@@ -132,7 +132,7 @@
  * @indio_dev:		industrial I/O device structure
  * @trig:		data ready trigger registered with iio
  * @tx:			transmit buffer
- * @rx:			recieve buffer
+ * @rx:			receive buffer
  * @buf_lock:		mutex to protect tx and rx
  **/
 struct adis16240_state {
diff --git a/drivers/staging/iio/accel/lis3l02dq.h b/drivers/staging/iio/accel/lis3l02dq.h
index 579b3a26e5d7..11402187f9ae 100644
--- a/drivers/staging/iio/accel/lis3l02dq.h
+++ b/drivers/staging/iio/accel/lis3l02dq.h
@@ -57,7 +57,7 @@
 /* Reboot memory content */
 #define LIS3L02DQ_REG_CTRL_2_REBOOT_MEMORY	0x10
 
-/* Interupt Enable - applies data ready to the RDY pad */
+/* Interrupt Enable - applies data ready to the RDY pad */
 #define LIS3L02DQ_REG_CTRL_2_ENABLE_INTERRUPT	0x08
 
 /* Enable Data Ready Generation - relationship with previous unclear in docs */
@@ -70,34 +70,34 @@
  * - option for 16 bit left justified */
 #define LIS3L02DQ_REG_CTRL_2_DATA_ALIGNMENT_16_BIT_LEFT_JUSTIFIED	0x01
 
-/* Interupt related stuff */
+/* Interrupt related stuff */
 #define LIS3L02DQ_REG_WAKE_UP_CFG_ADDR			0x23
 
 /* Switch from or combination fo conditions to and */
 #define LIS3L02DQ_REG_WAKE_UP_CFG_BOOLEAN_AND		0x80
 
-/* Latch interupt request,
+/* Latch interrupt request,
  * if on ack must be given by reading the ack register */
 #define LIS3L02DQ_REG_WAKE_UP_CFG_LATCH_SRC		0x40
 
-/* Z Interupt on High (above threshold)*/
+/* Z Interrupt on High (above threshold)*/
 #define LIS3L02DQ_REG_WAKE_UP_CFG_INTERRUPT_Z_HIGH	0x20
-/* Z Interupt on Low */
+/* Z Interrupt on Low */
 #define LIS3L02DQ_REG_WAKE_UP_CFG_INTERRUPT_Z_LOW	0x10
-/* Y Interupt on High */
+/* Y Interrupt on High */
 #define LIS3L02DQ_REG_WAKE_UP_CFG_INTERRUPT_Y_HIGH	0x08
-/* Y Interupt on Low */
+/* Y Interrupt on Low */
 #define LIS3L02DQ_REG_WAKE_UP_CFG_INTERRUPT_Y_LOW	0x04
-/* X Interupt on High */
+/* X Interrupt on High */
 #define LIS3L02DQ_REG_WAKE_UP_CFG_INTERRUPT_X_HIGH	0x02
-/* X Interupt on Low */
+/* X Interrupt on Low */
 #define LIS3L02DQ_REG_WAKE_UP_CFG_INTERRUPT_X_LOW 0x01
 
-/* Register that gives description of what caused interupt
+/* Register that gives description of what caused interrupt
  * - latched if set in CFG_ADDRES */
 #define LIS3L02DQ_REG_WAKE_UP_SRC_ADDR			0x24
 /* top bit ignored */
-/* Interupt Active */
+/* Interrupt Active */
 #define LIS3L02DQ_REG_WAKE_UP_SRC_INTERRUPT_ACTIVATED	0x40
 /* Interupts that have been triggered */
 #define LIS3L02DQ_REG_WAKE_UP_SRC_INTERRUPT_Z_HIGH	0x20
@@ -123,7 +123,7 @@
 #define LIS3L02DQ_REG_STATUS_X_NEW_DATA			0x01
 
 /* The accelerometer readings - low and high bytes.
-Form of high byte dependant on justification set in ctrl reg */
+Form of high byte dependent on justification set in ctrl reg */
 #define LIS3L02DQ_REG_OUT_X_L_ADDR			0x28
 #define LIS3L02DQ_REG_OUT_X_H_ADDR			0x29
 #define LIS3L02DQ_REG_OUT_Y_L_ADDR			0x2A
@@ -155,7 +155,7 @@ Form of high byte dependant on justification set in ctrl reg */
  * @inter:		used to check if new interrupt has been triggered
  * @trig:		data ready trigger registered with iio
  * @tx:			transmit buffer
- * @rx:			recieve buffer
+ * @rx:			receive buffer
  * @buf_lock:		mutex to protect tx and rx
  **/
 struct lis3l02dq_state {
diff --git a/drivers/staging/iio/accel/lis3l02dq_core.c b/drivers/staging/iio/accel/lis3l02dq_core.c
index c4b4ab7e6423..3067f9662d20 100644
--- a/drivers/staging/iio/accel/lis3l02dq_core.c
+++ b/drivers/staging/iio/accel/lis3l02dq_core.c
@@ -77,7 +77,7 @@ int lis3l02dq_spi_read_reg_8(struct device *dev, u8 reg_address, u8 *val)
 /**
  * lis3l02dq_spi_write_reg_8() - write single byte to a register
  * @dev: device associated with child of actual device (iio_dev or iio_trig)
- * @reg_address: the address of the register to be writen
+ * @reg_address: the address of the register to be written
  * @val: the value to write
  **/
 int lis3l02dq_spi_write_reg_8(struct device *dev,
diff --git a/drivers/staging/iio/accel/lis3l02dq_ring.c b/drivers/staging/iio/accel/lis3l02dq_ring.c
index 2c461a31f129..529a3cc6d0c7 100644
--- a/drivers/staging/iio/accel/lis3l02dq_ring.c
+++ b/drivers/staging/iio/accel/lis3l02dq_ring.c
@@ -217,7 +217,7 @@ static const u8 read_all_tx_array[] = {
 /**
  * lis3l02dq_read_all() Reads all channels currently selected
  * @st:		device specific state
- * @rx_array:	(dma capable) recieve array, must be at least
+ * @rx_array:	(dma capable) receive array, must be at least
  *		4*number of channels
  **/
 static int lis3l02dq_read_all(struct lis3l02dq_state *st, u8 *rx_array)
@@ -409,7 +409,7 @@ static const struct attribute_group lis3l02dq_trigger_attr_group = {
  *
  * As the trigger may occur on any data element being updated it is
  * really rather likely to occur during the read from the previous
- * trigger event.  The only way to discover if this has occured on
+ * trigger event.  The only way to discover if this has occurred on
  * boards not supporting level interrupts is to take a look at the line.
  * If it is indicating another interrupt and we don't seem to have a
  * handler looking at it, then we need to notify the core that we need
diff --git a/drivers/staging/iio/accel/sca3000.h b/drivers/staging/iio/accel/sca3000.h
index 23892848f5ae..db710334b99b 100644
--- a/drivers/staging/iio/accel/sca3000.h
+++ b/drivers/staging/iio/accel/sca3000.h
@@ -185,7 +185,7 @@ struct sca3000_state {
 };
 
 /**
- * struct sca3000_chip_info - model dependant parameters
+ * struct sca3000_chip_info - model dependent parameters
  * @name: 			model identification
  * @scale:			string containing floating point scale factor
  * @temp_output:		some devices have temperature sensors.
@@ -213,7 +213,7 @@ struct sca3000_chip_info {
  * sca3000_read_data() read a series of values from the device
  * @dev:		device
  * @reg_address_high:	start address (decremented read)
- * @rx:			pointer where recieved data is placed. Callee
+ * @rx:			pointer where received data is placed. Callee
  *			responsible for freeing this.
  * @len:		number of bytes to read
  *
diff --git a/drivers/staging/iio/accel/sca3000_ring.c b/drivers/staging/iio/accel/sca3000_ring.c
index c872fddfb2bf..a730a7638de1 100644
--- a/drivers/staging/iio/accel/sca3000_ring.c
+++ b/drivers/staging/iio/accel/sca3000_ring.c
@@ -43,7 +43,7 @@
  *			leading byte used in bus comms.
  *
  * Currently does not provide timestamps.  As the hardware doesn't add them they
- * can only be inferred aproximately from ring buffer events such as 50% full
+ * can only be inferred approximately from ring buffer events such as 50% full
  * and knowledge of when buffer was last emptied.  This is left to userspace.
  **/
 static int sca3000_rip_hw_rb(struct iio_ring_buffer *r,
diff --git a/drivers/staging/iio/adc/ad7298_ring.c b/drivers/staging/iio/adc/ad7298_ring.c
index 19d1aced1e6c..9068d7f54d15 100644
--- a/drivers/staging/iio/adc/ad7298_ring.c
+++ b/drivers/staging/iio/adc/ad7298_ring.c
@@ -157,7 +157,7 @@ static int ad7298_ring_preenable(struct iio_dev *indio_dev)
 /**
  * ad7298_poll_func_th() th of trigger launched polling to ring buffer
  *
- * As sampling only occurs on spi comms occuring, leave timestamping until
+ * As sampling only occurs on spi comms occurring, leave timestamping until
  * then.  Some triggers will generate their own time stamp.  Currently
  * there is no way of notifying them when no one cares.
  **/
diff --git a/drivers/staging/iio/adc/ad7476_ring.c b/drivers/staging/iio/adc/ad7476_ring.c
index 1d654c86099d..92d93787d5b8 100644
--- a/drivers/staging/iio/adc/ad7476_ring.c
+++ b/drivers/staging/iio/adc/ad7476_ring.c
@@ -112,7 +112,7 @@ static int ad7476_ring_preenable(struct iio_dev *indio_dev)
 /**
  * ad7476_poll_func_th() th of trigger launched polling to ring buffer
  *
- * As sampling only occurs on i2c comms occuring, leave timestamping until
+ * As sampling only occurs on i2c comms occurring, leave timestamping until
  * then.  Some triggers will generate their own time stamp.  Currently
  * there is no way of notifying them when no one cares.
  **/
diff --git a/drivers/staging/iio/adc/ad7887_ring.c b/drivers/staging/iio/adc/ad7887_ring.c
index 2d7fe65049dd..da77f266c16b 100644
--- a/drivers/staging/iio/adc/ad7887_ring.c
+++ b/drivers/staging/iio/adc/ad7887_ring.c
@@ -165,7 +165,7 @@ static int ad7887_ring_postdisable(struct iio_dev *indio_dev)
 /**
  * ad7887_poll_func_th() th of trigger launched polling to ring buffer
  *
- * As sampling only occurs on spi comms occuring, leave timestamping until
+ * As sampling only occurs on spi comms occurring, leave timestamping until
  * then.  Some triggers will generate their own time stamp.  Currently
  * there is no way of notifying them when no one cares.
  **/
diff --git a/drivers/staging/iio/adc/ad799x_core.c b/drivers/staging/iio/adc/ad799x_core.c
index e50841b3ac69..f04e642e7272 100644
--- a/drivers/staging/iio/adc/ad799x_core.c
+++ b/drivers/staging/iio/adc/ad799x_core.c
@@ -184,7 +184,7 @@ static ssize_t ad799x_read_single_channel(struct device *dev,
 
 	mutex_lock(&dev_info->mlock);
 	mask = 1 << this_attr->address;
-	/* If ring buffer capture is occuring, query the buffer */
+	/* If ring buffer capture is occurring, query the buffer */
 	if (iio_ring_enabled(dev_info)) {
 		data = ret = ad799x_single_channel_from_ring(st, mask);
 		if (ret < 0)
diff --git a/drivers/staging/iio/adc/ad799x_ring.c b/drivers/staging/iio/adc/ad799x_ring.c
index 56abc395f177..0875a7ef67a5 100644
--- a/drivers/staging/iio/adc/ad799x_ring.c
+++ b/drivers/staging/iio/adc/ad799x_ring.c
@@ -101,7 +101,7 @@ static int ad799x_ring_preenable(struct iio_dev *indio_dev)
 /**
  * ad799x_poll_func_th() th of trigger launched polling to ring buffer
  *
- * As sampling only occurs on i2c comms occuring, leave timestamping until
+ * As sampling only occurs on i2c comms occurring, leave timestamping until
  * then.  Some triggers will generate their own time stamp.  Currently
  * there is no way of notifying them when no one cares.
  **/
diff --git a/drivers/staging/iio/adc/max1363_core.c b/drivers/staging/iio/adc/max1363_core.c
index dde097afb430..de83c3b37a2d 100644
--- a/drivers/staging/iio/adc/max1363_core.c
+++ b/drivers/staging/iio/adc/max1363_core.c
@@ -255,7 +255,7 @@ static ssize_t max1363_read_single_channel(struct device *dev,
 		goto error_ret;
 	}
 
-	/* If ring buffer capture is occuring, query the buffer */
+	/* If ring buffer capture is occurring, query the buffer */
 	if (iio_ring_enabled(dev_info)) {
 		mask = max1363_mode_table[this_attr->address].modemask;
 		data = max1363_single_channel_from_ring(mask, st);
@@ -1425,7 +1425,7 @@ error_ret:
 }
 
 /*
- * To keep this managable we always use one of 3 scan modes.
+ * To keep this manageable we always use one of 3 scan modes.
  * Scan 0...3, 0-1,2-3 and 1-0,3-2
  */
 static inline int __max1363_check_event_mask(int thismask, int checkmask)
diff --git a/drivers/staging/iio/adc/max1363_ring.c b/drivers/staging/iio/adc/max1363_ring.c
index 5532f3e466bc..d36fcc62e976 100644
--- a/drivers/staging/iio/adc/max1363_ring.c
+++ b/drivers/staging/iio/adc/max1363_ring.c
@@ -108,7 +108,7 @@ static int max1363_ring_preenable(struct iio_dev *indio_dev)
 /**
  * max1363_poll_func_th() - th of trigger launched polling to ring buffer
  *
- * As sampling only occurs on i2c comms occuring, leave timestamping until
+ * As sampling only occurs on i2c comms occurring, leave timestamping until
  * then.  Some triggers will generate their own time stamp.  Currently
  * there is no way of notifying them when no one cares.
  **/
diff --git a/drivers/staging/iio/chrdev.h b/drivers/staging/iio/chrdev.h
index 98d1a2c12df2..4fcb99c816f9 100644
--- a/drivers/staging/iio/chrdev.h
+++ b/drivers/staging/iio/chrdev.h
@@ -33,7 +33,7 @@ struct iio_handler {
 /**
  * struct iio_event_data - The actual event being pushed to userspace
  * @id:		event identifier
- * @timestamp:	best estimate of time of event occurance (often from
+ * @timestamp:	best estimate of time of event occurrence (often from
  *		the interrupt handler)
  */
 struct iio_event_data {
@@ -42,7 +42,7 @@ struct iio_event_data {
 };
 
 /**
- * struct iio_detected_event_list - list element for events that have occured
+ * struct iio_detected_event_list - list element for events that have occurred
  * @list:		linked list header
  * @ev:			the event itself
  * @shared_pointer:	used when the event is shared - i.e. can be escallated
@@ -98,7 +98,7 @@ struct iio_event_interface {
  * @list:		list header
  * @refcount:		as the handler may be shared between multiple device
  *			side events, reference counting ensures clean removal
- * @exist_lock:		prevents race conditions related to refcount useage.
+ * @exist_lock:		prevents race conditions related to refcount usage.
  * @handler:		event handler function - called on event if this
  *			event_handler is enabled.
  *
diff --git a/drivers/staging/iio/gyro/adis16060_core.c b/drivers/staging/iio/gyro/adis16060_core.c
index 700eb3980f9e..ae53e71d1c2f 100644
--- a/drivers/staging/iio/gyro/adis16060_core.c
+++ b/drivers/staging/iio/gyro/adis16060_core.c
@@ -30,7 +30,7 @@
  * @us_w:		actual spi_device to write config
  * @us_r:		actual spi_device to read back data
  * @indio_dev:		industrial I/O device structure
- * @buf:		transmit or recieve buffer
+ * @buf:		transmit or receive buffer
  * @buf_lock:		mutex to protect tx and rx
  **/
 struct adis16060_state {
diff --git a/drivers/staging/iio/gyro/adis16080_core.c b/drivers/staging/iio/gyro/adis16080_core.c
index fb4336c7d2a6..ef9e304a226d 100644
--- a/drivers/staging/iio/gyro/adis16080_core.c
+++ b/drivers/staging/iio/gyro/adis16080_core.c
@@ -35,7 +35,7 @@
  * struct adis16080_state - device instance specific data
  * @us:			actual spi_device to write data
  * @indio_dev:		industrial I/O device structure
- * @buf:		transmit or recieve buffer
+ * @buf:		transmit or receive buffer
  * @buf_lock:		mutex to protect tx and rx
  **/
 struct adis16080_state {
diff --git a/drivers/staging/iio/gyro/adis16260.h b/drivers/staging/iio/gyro/adis16260.h
index c1fd4364287f..1369501b4096 100644
--- a/drivers/staging/iio/gyro/adis16260.h
+++ b/drivers/staging/iio/gyro/adis16260.h
@@ -91,7 +91,7 @@
  * @indio_dev:		industrial I/O device structure
  * @trig:		data ready trigger registered with iio
  * @tx:			transmit buffer
- * @rx:			recieve buffer
+ * @rx:			receive buffer
  * @buf_lock:		mutex to protect tx and rx
  * @negate:		negate the scale parameter
  **/
diff --git a/drivers/staging/iio/iio.h b/drivers/staging/iio/iio.h
index 248bdd2846fd..7127f26f8d26 100644
--- a/drivers/staging/iio/iio.h
+++ b/drivers/staging/iio/iio.h
@@ -92,7 +92,7 @@ void iio_remove_event_from_list(struct iio_event_handler_list *el,
  *			changes
  * @available_scan_masks: [DRIVER] optional array of allowed bitmasks
  * @trig:		[INTERN] current device trigger (ring buffer modes)
- * @pollfunc:		[DRIVER] function run on trigger being recieved
+ * @pollfunc:		[DRIVER] function run on trigger being received
  **/
 struct iio_dev {
 	int				id;
diff --git a/drivers/staging/iio/imu/adis16300.h b/drivers/staging/iio/imu/adis16300.h
index 1f25d68064a0..c0957591aed7 100644
--- a/drivers/staging/iio/imu/adis16300.h
+++ b/drivers/staging/iio/imu/adis16300.h
@@ -99,7 +99,7 @@
  * @indio_dev:		industrial I/O device structure
  * @trig:		data ready trigger registered with iio
  * @tx:			transmit buffer
- * @rx:			recieve buffer
+ * @rx:			receive buffer
  * @buf_lock:		mutex to protect tx and rx
  **/
 struct adis16300_state {
diff --git a/drivers/staging/iio/imu/adis16350.h b/drivers/staging/iio/imu/adis16350.h
index b00001e3edd0..b1ad48662a2c 100644
--- a/drivers/staging/iio/imu/adis16350.h
+++ b/drivers/staging/iio/imu/adis16350.h
@@ -105,7 +105,7 @@
  * @indio_dev:		industrial I/O device structure
  * @trig:		data ready trigger registered with iio
  * @tx:			transmit buffer
- * @rx:			recieve buffer
+ * @rx:			receive buffer
  * @buf_lock:		mutex to protect tx and rx
  **/
 struct adis16350_state {
diff --git a/drivers/staging/iio/imu/adis16400.h b/drivers/staging/iio/imu/adis16400.h
index 6ff33e1ad8c1..e328bcc5922f 100644
--- a/drivers/staging/iio/imu/adis16400.h
+++ b/drivers/staging/iio/imu/adis16400.h
@@ -17,7 +17,8 @@
 #ifndef SPI_ADIS16400_H_
 #define SPI_ADIS16400_H_
 
-#define ADIS16400_STARTUP_DELAY	220 /* ms */
+#define ADIS16400_STARTUP_DELAY	290 /* ms */
+#define ADIS16400_MTEST_DELAY 90 /* ms */
 
 #define ADIS16400_READ_REG(a)    a
 #define ADIS16400_WRITE_REG(a) ((a) | 0x80)
@@ -131,7 +132,7 @@
  * @indio_dev:		industrial I/O device structure
  * @trig:		data ready trigger registered with iio
  * @tx:			transmit buffer
- * @rx:			recieve buffer
+ * @rx:			receive buffer
  * @buf_lock:		mutex to protect tx and rx
  **/
 struct adis16400_state {
diff --git a/drivers/staging/iio/imu/adis16400_core.c b/drivers/staging/iio/imu/adis16400_core.c
index cfb108a1545b..540bde69cc3b 100644
--- a/drivers/staging/iio/imu/adis16400_core.c
+++ b/drivers/staging/iio/imu/adis16400_core.c
@@ -6,6 +6,7 @@
  *
  * Copyright (c) 2009 Manuel Stahl <manuel.stahl@iis.fraunhofer.de>
  * Copyright (c) 2007 Jonathan Cameron <jic23@cam.ac.uk>
+ * Copyright (c) 2011 Analog Devices Inc.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -93,7 +94,6 @@ static int adis16400_spi_write_reg_16(struct device *dev,
 			.tx_buf = st->tx + 2,
 			.bits_per_word = 8,
 			.len = 2,
-			.cs_change = 1,
 		},
 	};
 
@@ -137,7 +137,6 @@ static int adis16400_spi_read_reg_16(struct device *dev,
 			.rx_buf = st->rx,
 			.bits_per_word = 8,
 			.len = 2,
-			.cs_change = 1,
 		},
 	};
 
@@ -375,7 +374,7 @@ static int adis16400_self_test(struct device *dev)
 		dev_err(dev, "problem starting self test");
 		goto err_ret;
 	}
-
+	msleep(ADIS16400_MTEST_DELAY);
 	adis16400_check_status(dev);
 
 err_ret:
@@ -471,10 +470,11 @@ static int adis16400_initial_setup(struct adis16400_state *st)
 	if (ret)
 		goto err_ret;
 
-	if (prod_id != ADIS16400_PRODUCT_ID_DEFAULT)
+	if ((prod_id & 0xF000) != ADIS16400_PRODUCT_ID_DEFAULT)
 		dev_warn(dev, "unknown product id");
 
-	printk(KERN_INFO DRIVER_NAME ": prod_id 0x%04x at CS%d (irq %d)\n",
+
+	dev_info(dev, ": prod_id 0x%04x at CS%d (irq %d)\n",
 			prod_id, st->us->chip_select, st->us->irq);
 
 	/* use high spi speed if possible */
@@ -497,12 +497,12 @@ err_ret:
 			_reg)
 
 static ADIS16400_DEV_ATTR_CALIBBIAS(GYRO_X, ADIS16400_XGYRO_OFF);
-static ADIS16400_DEV_ATTR_CALIBBIAS(GYRO_Y, ADIS16400_XGYRO_OFF);
-static ADIS16400_DEV_ATTR_CALIBBIAS(GYRO_Z, ADIS16400_XGYRO_OFF);
+static ADIS16400_DEV_ATTR_CALIBBIAS(GYRO_Y, ADIS16400_YGYRO_OFF);
+static ADIS16400_DEV_ATTR_CALIBBIAS(GYRO_Z, ADIS16400_ZGYRO_OFF);
 
 static ADIS16400_DEV_ATTR_CALIBBIAS(ACCEL_X, ADIS16400_XACCL_OFF);
-static ADIS16400_DEV_ATTR_CALIBBIAS(ACCEL_Y, ADIS16400_XACCL_OFF);
-static ADIS16400_DEV_ATTR_CALIBBIAS(ACCEL_Z, ADIS16400_XACCL_OFF);
+static ADIS16400_DEV_ATTR_CALIBBIAS(ACCEL_Y, ADIS16400_YACCL_OFF);
+static ADIS16400_DEV_ATTR_CALIBBIAS(ACCEL_Z, ADIS16400_ZACCL_OFF);
 
 
 static IIO_DEV_ATTR_IN_NAMED_RAW(0, supply, adis16400_read_14bit_signed,
@@ -647,7 +647,7 @@ static int __devinit adis16400_probe(struct spi_device *spi)
 
 	ret = iio_ring_buffer_register(st->indio_dev->ring, 0);
 	if (ret) {
-		printk(KERN_ERR "failed to initialize the ring\n");
+		dev_err(&spi->dev, "failed to initialize the ring\n");
 		goto error_unreg_ring_funcs;
 	}
 
diff --git a/drivers/staging/iio/imu/adis16400_ring.c b/drivers/staging/iio/imu/adis16400_ring.c
index 33293fba9bcc..da28cb4288af 100644
--- a/drivers/staging/iio/imu/adis16400_ring.c
+++ b/drivers/staging/iio/imu/adis16400_ring.c
@@ -122,12 +122,10 @@ static int adis16400_spi_read_burst(struct device *dev, u8 *rx)
 			.tx_buf = st->tx,
 			.bits_per_word = 8,
 			.len = 2,
-			.cs_change = 0,
 		}, {
 			.rx_buf = rx,
 			.bits_per_word = 8,
 			.len = 24,
-			.cs_change = 1,
 		},
 	};
 
@@ -162,9 +160,10 @@ static void adis16400_trigger_bh_to_ring(struct work_struct *work_s)
 			       work_trigger_to_ring);
 	struct iio_ring_buffer *ring = st->indio_dev->ring;
 
-	int i = 0;
+	int i = 0, j;
 	s16 *data;
 	size_t datasize = ring->access.get_bytes_per_datum(ring);
+	unsigned long mask = ring->scan_mask;
 
 	data = kmalloc(datasize , GFP_KERNEL);
 	if (data == NULL) {
@@ -174,9 +173,12 @@ static void adis16400_trigger_bh_to_ring(struct work_struct *work_s)
 
 	if (ring->scan_count)
 		if (adis16400_spi_read_burst(&st->indio_dev->dev, st->rx) >= 0)
-			for (; i < ring->scan_count; i++)
+			for (; i < ring->scan_count; i++) {
+				j = __ffs(mask);
+				mask &= ~(1 << j);
 				data[i]	= be16_to_cpup(
-					(__be16 *)&(st->rx[i*2]));
+					(__be16 *)&(st->rx[j*2]));
+			}
 
 	/* Guaranteed to be aligned with 8 byte boundary */
 	if (ring->scan_timestamp)
diff --git a/drivers/staging/iio/industrialio-core.c b/drivers/staging/iio/industrialio-core.c
index f3bf111f354f..1795ee1e8207 100644
--- a/drivers/staging/iio/industrialio-core.c
+++ b/drivers/staging/iio/industrialio-core.c
@@ -258,7 +258,7 @@ static ssize_t iio_event_chrdev_read(struct file *filep,
 							   ->det_events.list));
 		if (ret)
 			goto error_ret;
-		/* Single access device so noone else can get the data */
+		/* Single access device so no one else can get the data */
 		mutex_lock(&ev_int->event_list_lock);
 	}
 
diff --git a/drivers/staging/iio/meter/ade7753.h b/drivers/staging/iio/meter/ade7753.h
index 70dabae6efe9..3b9c7f6a50e7 100644
--- a/drivers/staging/iio/meter/ade7753.h
+++ b/drivers/staging/iio/meter/ade7753.h
@@ -62,7 +62,7 @@
  * @us:			actual spi_device
  * @indio_dev:		industrial I/O device structure
  * @tx:			transmit buffer
- * @rx:			recieve buffer
+ * @rx:			receive buffer
  * @buf_lock:		mutex to protect tx and rx
  **/
 struct ade7753_state {
diff --git a/drivers/staging/iio/meter/ade7754.h b/drivers/staging/iio/meter/ade7754.h
index 8faa9b3b48b6..0aa0522a33a3 100644
--- a/drivers/staging/iio/meter/ade7754.h
+++ b/drivers/staging/iio/meter/ade7754.h
@@ -80,7 +80,7 @@
  * @us:			actual spi_device
  * @indio_dev:		industrial I/O device structure
  * @tx:			transmit buffer
- * @rx:			recieve buffer
+ * @rx:			receive buffer
  * @buf_lock:		mutex to protect tx and rx
  **/
 struct ade7754_state {
diff --git a/drivers/staging/iio/meter/ade7758.h b/drivers/staging/iio/meter/ade7758.h
index df5bb7ba5a0f..c6fd94f3b3ee 100644
--- a/drivers/staging/iio/meter/ade7758.h
+++ b/drivers/staging/iio/meter/ade7758.h
@@ -98,7 +98,7 @@
  * @indio_dev:		industrial I/O device structure
  * @trig:		data ready trigger registered with iio
  * @tx:			transmit buffer
- * @rx:			recieve buffer
+ * @rx:			receive buffer
  * @buf_lock:		mutex to protect tx and rx
  **/
 struct ade7758_state {
diff --git a/drivers/staging/iio/meter/ade7759.h b/drivers/staging/iio/meter/ade7759.h
index e9d1c43336fe..cc76c2c4c039 100644
--- a/drivers/staging/iio/meter/ade7759.h
+++ b/drivers/staging/iio/meter/ade7759.h
@@ -43,7 +43,7 @@
  * @us:			actual spi_device
  * @indio_dev:		industrial I/O device structure
  * @tx:			transmit buffer
- * @rx:			recieve buffer
+ * @rx:			receive buffer
  * @buf_lock:		mutex to protect tx and rx
  **/
 struct ade7759_state {
diff --git a/drivers/staging/iio/meter/ade7854.h b/drivers/staging/iio/meter/ade7854.h
index 4ad84a3bb462..79a21109f4e2 100644
--- a/drivers/staging/iio/meter/ade7854.h
+++ b/drivers/staging/iio/meter/ade7854.h
@@ -149,7 +149,7 @@
  * @spi:			actual spi_device
  * @indio_dev:		industrial I/O device structure
  * @tx:			transmit buffer
- * @rx:			recieve buffer
+ * @rx:			receive buffer
  * @buf_lock:		mutex to protect tx and rx
  **/
 struct ade7854_state {
diff --git a/drivers/staging/iio/ring_generic.h b/drivers/staging/iio/ring_generic.h
index f21ac09373cf..32948e55dc81 100644
--- a/drivers/staging/iio/ring_generic.h
+++ b/drivers/staging/iio/ring_generic.h
@@ -30,7 +30,7 @@ int iio_push_ring_event(struct iio_ring_buffer *ring_buf,
  * @event_code:		event indentification code
  * @timestamp:		time of event
  *
- * Typical usecase is to escalate a 50% ring full to 75% full if noone has yet
+ * Typical usecase is to escalate a 50% ring full to 75% full if no one has yet
  * read the first event. Clearly the 50% full is no longer of interest in
  * typical use case.
  **/
diff --git a/drivers/staging/intel_sst/TODO b/drivers/staging/intel_sst/TODO
index a24e5ed5689c..c733d7011091 100644
--- a/drivers/staging/intel_sst/TODO
+++ b/drivers/staging/intel_sst/TODO
@@ -1,7 +1,7 @@
 TODO
 ----
 
-Get the memrar driver cleaned up and upstream (dependancy blocking SST)
+Get the memrar driver cleaned up and upstream (dependency blocking SST)
 Replace long/short press with two virtual buttons
 Review the printks and kill off any left over ST_ERR: messages
 Review the misc device ioctls for 32/64bit safety and sanity
diff --git a/drivers/staging/intel_sst/intel_sst.c b/drivers/staging/intel_sst/intel_sst.c
index ce4a9f79ccd2..81c24d19eb9e 100644
--- a/drivers/staging/intel_sst/intel_sst.c
+++ b/drivers/staging/intel_sst/intel_sst.c
@@ -263,7 +263,7 @@ static int __devinit intel_sst_probe(struct pci_dev *pci,
 	/* Init the device */
 	ret = pci_enable_device(pci);
 	if (ret) {
-		pr_err("device cant be enabled\n");
+		pr_err("device can't be enabled\n");
 		goto do_free_mem;
 	}
 	sst_drv_ctx->pci = pci_dev_get(pci);
@@ -453,7 +453,7 @@ int intel_sst_resume(struct pci_dev *pci)
 	pci_restore_state(pci);
 	ret = pci_enable_device(pci);
 	if (ret)
-		pr_err("device cant be enabled\n");
+		pr_err("device can't be enabled\n");
 
 	mutex_lock(&sst_drv_ctx->sst_lock);
 	sst_drv_ctx->sst_state = SST_UN_INIT;
diff --git a/drivers/staging/intel_sst/intel_sst_app_interface.c b/drivers/staging/intel_sst/intel_sst_app_interface.c
index a367991d5600..1d0621260ea8 100644
--- a/drivers/staging/intel_sst/intel_sst_app_interface.c
+++ b/drivers/staging/intel_sst/intel_sst_app_interface.c
@@ -236,7 +236,7 @@ int intel_sst_mmap(struct file *file_ptr, struct vm_area_struct *vma)
 	if (!sst_drv_ctx->mmap_mem)
 		return -EIO;
 
-	/* round it up to the page bondary  */
+	/* round it up to the page boundary  */
 	/*mem_area = (void *)((((unsigned long)sst_drv_ctx->mmap_mem)
 				+ PAGE_SIZE - 1) & PAGE_MASK);*/
 	mem_area = (void *) PAGE_ALIGN((unsigned int) sst_drv_ctx->mmap_mem);
@@ -871,7 +871,7 @@ int sst_send_algo_ipc(struct ipc_post **msg)
 }
 
 /**
- * intel_sst_ioctl_dsp - recieves the device ioctl's
+ * intel_sst_ioctl_dsp - receives the device ioctl's
  *
  * @cmd:Ioctl cmd
  * @arg:data
@@ -1067,7 +1067,7 @@ long intel_sst_ioctl(struct file *file_ptr, unsigned int cmd, unsigned long arg)
 			retval = -EFAULT;
 			break;
 		}
-		pr_debug("SET_VOLUME recieved for %d!\n",
+		pr_debug("SET_VOLUME received for %d!\n",
 				set_vol.stream_id);
 		if (minor == STREAM_MODULE && set_vol.stream_id == 0) {
 			pr_debug("invalid operation!\n");
@@ -1085,7 +1085,7 @@ long intel_sst_ioctl(struct file *file_ptr, unsigned int cmd, unsigned long arg)
 			retval = -EFAULT;
 			break;
 		}
-		pr_debug("IOCTL_GET_VOLUME recieved for stream = %d!\n",
+		pr_debug("IOCTL_GET_VOLUME received for stream = %d!\n",
 				get_vol.stream_id);
 		if (minor == STREAM_MODULE && get_vol.stream_id == 0) {
 			pr_debug("invalid operation!\n");
@@ -1117,7 +1117,7 @@ long intel_sst_ioctl(struct file *file_ptr, unsigned int cmd, unsigned long arg)
 			retval = -EFAULT;
 			break;
 		}
-		pr_debug("SNDRV_SST_SET_VOLUME recieved for %d!\n",
+		pr_debug("SNDRV_SST_SET_VOLUME received for %d!\n",
 			set_mute.stream_id);
 		if (minor == STREAM_MODULE && set_mute.stream_id == 0) {
 			retval = -EPERM;
@@ -1153,7 +1153,7 @@ long intel_sst_ioctl(struct file *file_ptr, unsigned int cmd, unsigned long arg)
 	case _IOC_NR(SNDRV_SST_MMAP_CAPTURE): {
 		struct snd_sst_mmap_buffs mmap_buf;
 
-		pr_debug("SNDRV_SST_MMAP_PLAY/CAPTURE recieved!\n");
+		pr_debug("SNDRV_SST_MMAP_PLAY/CAPTURE received!\n");
 		if (minor != STREAM_MODULE) {
 			retval = -EBADRQC;
 			break;
@@ -1239,7 +1239,7 @@ long intel_sst_ioctl(struct file *file_ptr, unsigned int cmd, unsigned long arg)
 	case _IOC_NR(SNDRV_SST_SET_TARGET_DEVICE): {
 		struct snd_sst_target_device target_device;
 
-		pr_debug("SET_TARGET_DEVICE recieved!\n");
+		pr_debug("SET_TARGET_DEVICE received!\n");
 		if (copy_from_user(&target_device, (void __user *)arg,
 				sizeof(target_device))) {
 			retval = -EFAULT;
@@ -1256,7 +1256,7 @@ long intel_sst_ioctl(struct file *file_ptr, unsigned int cmd, unsigned long arg)
 	case _IOC_NR(SNDRV_SST_DRIVER_INFO): {
 		struct snd_sst_driver_info info;
 
-		pr_debug("SNDRV_SST_DRIVER_INFO recived\n");
+		pr_debug("SNDRV_SST_DRIVER_INFO received\n");
 		info.version = SST_VERSION_NUM;
 		/* hard coding, shud get sumhow later */
 		info.active_pcm_streams = sst_drv_ctx->stream_cnt -
diff --git a/drivers/staging/intel_sst/intel_sst_drv_interface.c b/drivers/staging/intel_sst/intel_sst_drv_interface.c
index ea8e251b5099..e9c182108243 100644
--- a/drivers/staging/intel_sst/intel_sst_drv_interface.c
+++ b/drivers/staging/intel_sst/intel_sst_drv_interface.c
@@ -315,7 +315,7 @@ int sst_open_pcm_stream(struct snd_sst_params *str_param)
 	pm_runtime_get_sync(&sst_drv_ctx->pci->dev);
 
 	if (sst_drv_ctx->sst_state == SST_SUSPENDED) {
-		/* LPE is suspended, resume it before proceding*/
+		/* LPE is suspended, resume it before proceeding*/
 		pr_debug("Resuming from Suspended state\n");
 		retval = intel_sst_resume(sst_drv_ctx->pci);
 		if (retval) {
diff --git a/drivers/staging/intel_sst/intel_sst_dsp.c b/drivers/staging/intel_sst/intel_sst_dsp.c
index 6e5c9152da9f..bffe4c6e2928 100644
--- a/drivers/staging/intel_sst/intel_sst_dsp.c
+++ b/drivers/staging/intel_sst/intel_sst_dsp.c
@@ -350,7 +350,7 @@ static int sst_download_library(const struct firmware *fw_lib,
 
 }
 
-/* This function is called befoer downloading the codec/postprocessing
+/* This function is called before downloading the codec/postprocessing
 library is set for download to SST DSP*/
 static int sst_validate_library(const struct firmware *fw_lib,
 		struct lib_slot_info *slot,
@@ -405,7 +405,7 @@ exit:
 
 }
 
-/* This function is called when FW requests for a particular libary download
+/* This function is called when FW requests for a particular library download
 This function prepares the library to download*/
 int sst_load_library(struct snd_sst_lib_download *lib, u8 ops)
 {
diff --git a/drivers/staging/intel_sst/intel_sst_fw_ipc.h b/drivers/staging/intel_sst/intel_sst_fw_ipc.h
index 8df313d10d2a..0f0c5bbc5f4b 100644
--- a/drivers/staging/intel_sst/intel_sst_fw_ipc.h
+++ b/drivers/staging/intel_sst/intel_sst_fw_ipc.h
@@ -111,7 +111,7 @@
 #define IPC_SST_PERIOD_ELAPSED 0x97 /* period elapsed */
 #define IPC_IA_TARGET_DEV_CHNGD 0x98 /* error in processing a stream */
 
-#define IPC_SST_ERROR_EVENT 0x99 /* Buffer over run occured */
+#define IPC_SST_ERROR_EVENT 0x99 /* Buffer over run occurred */
 /* L2S messages */
 #define IPC_SC_DDR_LINK_UP 0xC0
 #define IPC_SC_DDR_LINK_DOWN 0xC1
diff --git a/drivers/staging/intel_sst/intel_sst_stream.c b/drivers/staging/intel_sst/intel_sst_stream.c
index 795e42ab7360..dd58be5b1975 100644
--- a/drivers/staging/intel_sst/intel_sst_stream.c
+++ b/drivers/staging/intel_sst/intel_sst_stream.c
@@ -98,7 +98,7 @@ static unsigned int get_mrst_stream_id(void)
 		if (sst_drv_ctx->streams[i].status == STREAM_UN_INIT)
 			return i;
 	}
-	pr_debug("Didnt find empty stream for mrst\n");
+	pr_debug("Didn't find empty stream for mrst\n");
 	return -EBUSY;
 }
 
diff --git a/drivers/staging/intel_sst/intel_sst_stream_encoded.c b/drivers/staging/intel_sst/intel_sst_stream_encoded.c
index 29753c7519a7..d5f07b878828 100644
--- a/drivers/staging/intel_sst/intel_sst_stream_encoded.c
+++ b/drivers/staging/intel_sst/intel_sst_stream_encoded.c
@@ -914,7 +914,7 @@ static int sst_prepare_input_buffers_rar(struct stream_info *str_info,
 		(void *) ((unsigned long) rar_buffers.bus_address);
 		pr_debug("RAR buf addr in DnR (input buffer function)0x%lu",
 				 (unsigned long) str_info->decode_ibuf);
-		pr_debug("rar in DnR decode funtion/output b_add rar =0x%lu",
+		pr_debug("rar in DnR decode function/output b_add rar =0x%lu",
 				(unsigned long) rar_buffers.bus_address);
 		*input_index = i + 1;
 		str_info->decode_isize = dbufs->ibufs->buff_entry[i].size;
diff --git a/drivers/staging/intel_sst/intelmid.c b/drivers/staging/intel_sst/intelmid.c
index fb2292186703..d207636a7b6d 100644
--- a/drivers/staging/intel_sst/intelmid.c
+++ b/drivers/staging/intel_sst/intelmid.c
@@ -773,7 +773,7 @@ static int __devinit snd_intelmad_sst_register(
 		if (ret_val)
 			return ret_val;
 		sst_card_vendor_id = (vendor_addr.value & (MASK2|MASK1|MASK0));
-		pr_debug("orginal n extrated vendor id = 0x%x %d\n",
+		pr_debug("original n extrated vendor id = 0x%x %d\n",
 				vendor_addr.value, sst_card_vendor_id);
 		if (sst_card_vendor_id < 0 || sst_card_vendor_id > 2) {
 			pr_err("vendor card not supported!!\n");
diff --git a/drivers/staging/intel_sst/intelmid.h b/drivers/staging/intel_sst/intelmid.h
index ca881b790cb2..e77da87e1df0 100644
--- a/drivers/staging/intel_sst/intelmid.h
+++ b/drivers/staging/intel_sst/intelmid.h
@@ -90,7 +90,7 @@ struct mad_jack_msg_wq {
  * @card_index: sound card index
  * @card_id: sound card id detected
  * @sstdrv_ops: ptr to sst driver ops
- * @pdev: ptr to platfrom device
+ * @pdev: ptr to platform device
  * @irq: interrupt number detected
  * @pmic_status: Device status of sound card
  * @int_base: ptr to MMIO interrupt region
diff --git a/drivers/staging/keucr/init.c b/drivers/staging/keucr/init.c
index 5c01f28f0734..8af7c84daee2 100644
--- a/drivers/staging/keucr/init.c
+++ b/drivers/staging/keucr/init.c
@@ -90,7 +90,7 @@ int ENE_MSInit(struct us_data *us)
 
 	result = ENE_SendScsiCmd(us, FDIR_READ, &buf, 0);
 	if (result != USB_STOR_XFER_GOOD) {
-		printk(KERN_ERR "Exection MS Init Code Fail !!\n");
+		printk(KERN_ERR "Execution MS Init Code Fail !!\n");
 		return USB_STOR_TRANSPORT_ERROR;
 	}
 
@@ -145,7 +145,7 @@ int ENE_SMInit(struct us_data *us)
 	result = ENE_SendScsiCmd(us, FDIR_READ, &buf, 0);
 	if (result != USB_STOR_XFER_GOOD) {
 		printk(KERN_ERR
-		       "Exection SM Init Code Fail !! result = %x\n", result);
+		       "Execution SM Init Code Fail !! result = %x\n", result);
 		return USB_STOR_TRANSPORT_ERROR;
 	}
 
diff --git a/drivers/staging/keucr/smilmain.c b/drivers/staging/keucr/smilmain.c
index 2cbe9f897eef..95c688a5c95a 100644
--- a/drivers/staging/keucr/smilmain.c
+++ b/drivers/staging/keucr/smilmain.c
@@ -64,7 +64,7 @@ extern struct SSFDCTYPE  Ssfdc;
 extern struct ADDRESS    Media;
 extern struct CIS_AREA   CisArea;
 
-//BIT Controll Macro
+//BIT Control Macro
 BYTE BitData[] = { 0x01,0x02,0x04,0x08,0x10,0x20,0x40,0x80 } ;
 #define Set_D_Bit(a,b)    (a[(BYTE)((b)/8)]|= BitData[(b)%8])
 #define Clr_D_Bit(a,b)    (a[(BYTE)((b)/8)]&=~BitData[(b)%8])
@@ -76,7 +76,7 @@ extern BYTE     IsXDCompliance;
 
 
 //
-////Power Controll & Media Exist Check Function
+////Power Control & Media Exist Check Function
 ////----- Init_D_SmartMedia() --------------------------------------------
 //int Init_D_SmartMedia(void)
 //{
@@ -575,7 +575,7 @@ int Media_D_OneSectWriteFlush(PFDO_DEVICE_EXTENSION fdoExt)
 //    return(SUCCESS);
 //}
 //
-////Power Controll & Media Exist Check Subroutine
+////Power Control & Media Exist Check Subroutine
 ////----- Initialize_D_Media() -------------------------------------------
 //void Initialize_D_Media(void)
 //{
@@ -738,7 +738,7 @@ int Check_D_MediaFmt(struct us_data *us)
 //    return(SUCCESS);
 //}
 */
-//SmartMedia Physical Address Controll Subroutine
+//SmartMedia Physical Address Control Subroutine
 //----- Conv_D_MediaAddr() ---------------------------------------------
 int Conv_D_MediaAddr(struct us_data *us, DWORD addr)
 {
diff --git a/drivers/staging/keucr/smilsub.c b/drivers/staging/keucr/smilsub.c
index 80da61c37bff..4fe47422eb79 100644
--- a/drivers/staging/keucr/smilsub.c
+++ b/drivers/staging/keucr/smilsub.c
@@ -57,7 +57,7 @@ extern WORD  WriteBlock;
 #define ODD                     1             // Odd Page for 256byte/page
 
 
-//SmartMedia Redundant buffer data Controll Subroutine
+//SmartMedia Redundant buffer data Control Subroutine
 //----- Check_D_DataBlank() --------------------------------------------
 int Check_D_DataBlank(BYTE *redundant)
 {
@@ -1367,7 +1367,7 @@ BYTE _Check_D_DevCode(BYTE dcode)
     }
 }
 /*
-////SmartMedia Power Controll Subroutine
+////SmartMedia Power Control Subroutine
 ////----- Cnt_D_Reset() ----------------------------------------------
 //void Cnt_D_Reset(void)
 //{
@@ -1478,7 +1478,7 @@ BYTE _Check_D_DevCode(BYTE dcode)
 //}
 //
 */
-//SmartMedia ECC Controll Subroutine
+//SmartMedia ECC Control Subroutine
 //----- Check_D_ReadError() ----------------------------------------------
 int Check_D_ReadError(BYTE *redundant)
 {
diff --git a/drivers/staging/lirc/lirc_ene0100.h b/drivers/staging/lirc/lirc_ene0100.h
index 776b693bb307..06bebd6acc46 100644
--- a/drivers/staging/lirc/lirc_ene0100.h
+++ b/drivers/staging/lirc/lirc_ene0100.h
@@ -81,7 +81,7 @@
 
 /* CIR block settings */
 #define ENE_CIR_CONF1		0xFEC0
-#define ENE_CIR_CONF1_ADC_ON	0x7	 /* reciever on gpio40 enabled */
+#define ENE_CIR_CONF1_ADC_ON	0x7	 /* receiver on gpio40 enabled */
 #define ENE_CIR_CONF1_LEARN1	(1 << 3) /* enabled on learning mode */
 #define ENE_CIR_CONF1_TX_ON	0x30	 /* enabled on transmit */
 #define ENE_CIR_CONF1_TX_CARR	(1 << 7) /* send TX carrier or not */
@@ -96,7 +96,7 @@
 
 /* transmitter - not implemented yet */
 /* KB3926C and higher */
-/* transmission is very similiar to recieving, a byte is written to */
+/* transmission is very similar to receiving, a byte is written to */
 /* ENE_TX_INPUT, in same manner as it is read from sample buffer */
 /* sample period is fixed*/
 
diff --git a/drivers/staging/memrar/Kconfig b/drivers/staging/memrar/Kconfig
deleted file mode 100644
index cbeebc550904..000000000000
--- a/drivers/staging/memrar/Kconfig
+++ /dev/null
@@ -1,15 +0,0 @@
-config MRST_RAR_HANDLER
-	tristate "RAR handler driver for Intel Moorestown platform"
-	depends on RAR_REGISTER
-	---help---
-	  This driver provides a memory management interface to
-	  restricted access regions (RAR) available on the Intel
-	  Moorestown platform.
-
-	  Once locked down, restricted access regions are only
-	  accessible by specific hardware on the platform.  The x86
-	  CPU is typically not one of those platforms.  As such this
-	  driver does not access RAR, and only provides a buffer
-	  allocation/bookkeeping mechanism.
-
-	  If unsure, say N.
diff --git a/drivers/staging/memrar/Makefile b/drivers/staging/memrar/Makefile
deleted file mode 100644
index a3336c00cc5f..000000000000
--- a/drivers/staging/memrar/Makefile
+++ /dev/null
@@ -1,2 +0,0 @@
-obj-$(CONFIG_MRST_RAR_HANDLER)	+= memrar.o
-memrar-y			:= memrar_allocator.o memrar_handler.o
diff --git a/drivers/staging/memrar/TODO b/drivers/staging/memrar/TODO
deleted file mode 100644
index 435e09ba44c5..000000000000
--- a/drivers/staging/memrar/TODO
+++ /dev/null
@@ -1,43 +0,0 @@
-RAR Handler (memrar) Driver TODO Items
-======================================
-
-Maintainer: Eugene Epshteyn <eugene.epshteyn@intel.com>
-
-memrar.h
---------
-1. This header exposes the driver's user space and kernel space
-   interfaces.  It should be moved to <linux/rar/memrar.h>, or
-   something along those lines, when this memrar driver is moved out
-   of `staging'.
-     a. It would be ideal if staging/rar_register/rar_register.h was
-        moved to the same directory.
-
-memrar_allocator.[ch]
----------------------
-1. Address potential fragmentation issues with the memrar_allocator.
-
-2. Hide struct memrar_allocator details/fields.  They need not be
-   exposed to the user.
-     a. Forward declare struct memrar_allocator.
-     b. Move all three struct definitions to `memrar_allocator.c'
-        source file.
-     c. Add a memrar_allocator_largest_free_area() function, or
-        something like that to get access to the value of the struct
-        memrar_allocator "largest_free_area" field.  This allows the
-        struct memrar_allocator fields to be completely hidden from
-        the user.  The memrar_handler code really only needs this for
-        statistic gathering on-demand.
-     d. Do the same for the "capacity" field as the
-        "largest_free_area" field.
-
-3. Move memrar_allocator.* to kernel `lib' directory since it is HW
-   neutral.
-     a. Alternatively, use lib/genalloc.c instead.
-     b. A kernel port of Doug Lea's malloc() implementation may also
-        be an option.
-
-memrar_handler.c
-----------------
-1. Split user space interface (ioctl code) from core/kernel code,
-   e.g.:
-     memrar_handler.c -> memrar_core.c, memrar_user.c
diff --git a/drivers/staging/memrar/memrar-abi b/drivers/staging/memrar/memrar-abi
deleted file mode 100644
index c23fc996a435..000000000000
--- a/drivers/staging/memrar/memrar-abi
+++ /dev/null
@@ -1,89 +0,0 @@
-What:		/dev/memrar
-Date:		March 2010
-KernelVersion:	2.6.34
-Contact:	Eugene Epshteyn <eugene.epshteyn@intel.com>
-Description:	The Intel Moorestown Restricted Access Region (RAR)
-		Handler driver exposes an ioctl() based interface that
-		allows a user to reserve and release blocks of RAR
-		memory.
-
-		Note:  A sysfs based one was not appropriate for the
-		RAR handler's usage model.
-
-		=========================================================
-				ioctl() Requests
-		=========================================================
-		RAR_HANDLER_RESERVE
-		-------------------
-		Description:	Reserve RAR block.
-		Type:		struct RAR_block_info
-		Direction:	in/out
-		Errors:		EINVAL (invalid RAR type or size)
-				ENOMEM (not enough RAR memory)
-
-		RAR_HANDLER_STAT
-		----------------
-		Description:	Get RAR statistics.
-		Type:		struct RAR_stat
-		Direction:	in/out
-		Errors:		EINVAL (invalid RAR type)
-
-		RAR_HANDLER_RELEASE
-		-------------------
-		Description:	Release previously reserved RAR block.
-		Type:		32 bit unsigned integer
-				(e.g. uint32_t), i.e the RAR "handle".
-		Direction:	in
-		Errors:		EINVAL (invalid RAR handle)
-
-
-		=========================================================
-			ioctl() Request Parameter Types
-		=========================================================
-		The structures referred to above are defined as
-		follows:
-
-		/**
-		 * struct RAR_block_info - user space struct that
-		 *			   describes RAR buffer
-		 * @type:	Type of RAR memory (e.g.,
-		 *		RAR_TYPE_VIDEO or RAR_TYPE_AUDIO) [in]
-		 * @size:	Requested size of a block in bytes to
-		 *		be reserved in RAR. [in]
-		 * @handle:	Handle that can be used to refer to
-		 *		reserved block. [out]
-		 *
-		 * This is the basic structure exposed to the user
-		 * space that describes a given RAR buffer.  It used
-		 * as the parameter for the RAR_HANDLER_RESERVE ioctl.
-		 * The buffer's underlying bus address is not exposed
-		 * to the user.  User space code refers to the buffer
-		 * entirely by "handle".
-		 */
-		struct RAR_block_info {
-			__u32 type;
-			__u32 size;
-			__u32 handle;
-		};
-
-		/**
-		 * struct RAR_stat - RAR statistics structure
-		 * @type:		Type of RAR memory (e.g.,
-		 *			RAR_TYPE_VIDEO or
-		 *			RAR_TYPE_AUDIO) [in]
-		 * @capacity:		Total size of RAR memory
-		 *			region. [out]
-		 * @largest_block_size:	Size of the largest reservable
-		 *			block. [out]
-		 *
-		 * This structure is used for RAR_HANDLER_STAT ioctl.
-		 */
-		struct RAR_stat {
-			__u32 type;
-			__u32 capacity;
-			__u32 largest_block_size;
-		};
-
-		Lastly, the RAR_HANDLER_RELEASE ioctl expects a
-		"handle" to the RAR block of memory.  It is a 32 bit
-		unsigned integer.
diff --git a/drivers/staging/memrar/memrar.h b/drivers/staging/memrar/memrar.h
deleted file mode 100644
index 0feb73b94c91..000000000000
--- a/drivers/staging/memrar/memrar.h
+++ /dev/null
@@ -1,174 +0,0 @@
-/*
- *      RAR Handler (/dev/memrar) internal driver API.
- *      Copyright (C) 2010 Intel Corporation. All rights reserved.
- *
- *      This program is free software; you can redistribute it and/or
- *      modify it under the terms of version 2 of the GNU General
- *      Public License as published by the Free Software Foundation.
- *
- *      This program is distributed in the hope that it will be
- *      useful, but WITHOUT ANY WARRANTY; without even the implied
- *      warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
- *      PURPOSE.  See the GNU General Public License for more details.
- *      You should have received a copy of the GNU General Public
- *      License along with this program; if not, write to the Free
- *      Software Foundation, Inc., 59 Temple Place - Suite 330,
- *      Boston, MA  02111-1307, USA.
- *      The full GNU General Public License is included in this
- *      distribution in the file called COPYING.
- */
-
-
-#ifndef _MEMRAR_H
-#define _MEMRAR_H
-
-#include <linux/ioctl.h>
-#include <linux/types.h>
-
-
-/**
- * struct RAR_stat - RAR statistics structure
- * @type:		Type of RAR memory (e.g., audio vs. video)
- * @capacity:		Total size of RAR memory region.
- * @largest_block_size:	Size of the largest reservable block.
- *
- * This structure is used for RAR_HANDLER_STAT ioctl and for the
- * RAR_get_stat() user space wrapper function.
- */
-struct RAR_stat {
-	__u32 type;
-	__u32 capacity;
-	__u32 largest_block_size;
-};
-
-
-/**
- * struct RAR_block_info - user space struct that describes RAR buffer
- * @type:	Type of RAR memory (e.g., audio vs. video)
- * @size:	Requested size of a block to be reserved in RAR.
- * @handle:	Handle that can be used to refer to reserved block.
- *
- * This is the basic structure exposed to the user space that
- * describes a given RAR buffer.  The buffer's underlying bus address
- * is not exposed to the user.  User space code refers to the buffer
- * entirely by "handle".
- */
-struct RAR_block_info {
-	__u32 type;
-	__u32 size;
-	__u32 handle;
-};
-
-
-#define RAR_IOCTL_BASE 0xE0
-
-/* Reserve RAR block. */
-#define RAR_HANDLER_RESERVE _IOWR(RAR_IOCTL_BASE, 0x00, struct RAR_block_info)
-
-/* Release previously reserved RAR block. */
-#define RAR_HANDLER_RELEASE _IOW(RAR_IOCTL_BASE, 0x01, __u32)
-
-/* Get RAR stats. */
-#define RAR_HANDLER_STAT    _IOWR(RAR_IOCTL_BASE, 0x02, struct RAR_stat)
-
-
-#ifdef __KERNEL__
-
-/* -------------------------------------------------------------- */
-/*               Kernel Side RAR Handler Interface                */
-/* -------------------------------------------------------------- */
-
-/**
- * struct RAR_buffer - kernel space struct that describes RAR buffer
- * @info:		structure containing base RAR buffer information
- * @bus_address:	buffer bus address
- *
- * Structure that contains all information related to a given block of
- * memory in RAR.  It is generally only used when retrieving RAR
- * related bus addresses.
- *
- * Note: This structure is used only by RAR-enabled drivers, and is
- *       not intended to be exposed to the user space.
- */
-struct RAR_buffer {
-	struct RAR_block_info info;
-	dma_addr_t bus_address;
-};
-
-#if defined(CONFIG_MRST_RAR_HANDLER)
-/**
- * rar_reserve() - reserve RAR buffers
- * @buffers:	array of RAR_buffers where type and size of buffers to
- *		reserve are passed in, handle and bus address are
- *		passed out
- * @count:	number of RAR_buffers in the "buffers" array
- *
- * This function will reserve buffers in the restricted access regions
- * of given types.
- *
- * It returns the number of successfully reserved buffers.  Successful
- * buffer reservations will have the corresponding bus_address field
- * set to a non-zero value in the given buffers vector.
- */
-extern size_t rar_reserve(struct RAR_buffer *buffers,
-			  size_t count);
-
-/**
- * rar_release() - release RAR buffers
- * @buffers:	array of RAR_buffers where handles to buffers to be
- *		released are passed in
- * @count:	number of RAR_buffers in the "buffers" array
- *
- * This function will release RAR buffers that were retrieved through
- * a call to rar_reserve() or rar_handle_to_bus() by decrementing the
- * reference count.  The RAR buffer will be reclaimed when the
- * reference count drops to zero.
- *
- * It returns the number of successfully released buffers.  Successful
- * releases will have their handle field set to zero in the given
- * buffers vector.
- */
-extern size_t rar_release(struct RAR_buffer *buffers,
-			  size_t count);
-
-/**
- * rar_handle_to_bus() - convert a vector of RAR handles to bus addresses
- * @buffers:	array of RAR_buffers containing handles to be
- *		converted to bus_addresses
- * @count:	number of RAR_buffers in the "buffers" array
-
- * This function will retrieve the RAR buffer bus addresses, type and
- * size corresponding to the RAR handles provided in the buffers
- * vector.
- *
- * It returns the number of successfully converted buffers.  The bus
- * address will be set to 0 for unrecognized handles.
- *
- * The reference count for each corresponding buffer in RAR will be
- * incremented.  Call rar_release() when done with the buffers.
- */
-extern size_t rar_handle_to_bus(struct RAR_buffer *buffers,
-				size_t count);
-
-#else
-
-extern inline size_t rar_reserve(struct RAR_buffer *buffers, size_t count)
-{
-	return 0;
-}
-
-extern inline size_t rar_release(struct RAR_buffer *buffers, size_t count)
-{
-	return 0;
-}
-
-extern inline size_t rar_handle_to_bus(struct RAR_buffer *buffers,
-				size_t count)
-{
-	return 0;
-}
-
-#endif  /* MRST_RAR_HANDLER */
-#endif  /* __KERNEL__ */
-
-#endif  /* _MEMRAR_H */
diff --git a/drivers/staging/memrar/memrar_allocator.c b/drivers/staging/memrar/memrar_allocator.c
deleted file mode 100644
index a4f8c5846a00..000000000000
--- a/drivers/staging/memrar/memrar_allocator.c
+++ /dev/null
@@ -1,432 +0,0 @@
-/*
- *      memrar_allocator 1.0:  An allocator for Intel RAR.
- *
- *      Copyright (C) 2010 Intel Corporation. All rights reserved.
- *
- *      This program is free software; you can redistribute it and/or
- *      modify it under the terms of version 2 of the GNU General
- *      Public License as published by the Free Software Foundation.
- *
- *      This program is distributed in the hope that it will be
- *      useful, but WITHOUT ANY WARRANTY; without even the implied
- *      warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
- *      PURPOSE.  See the GNU General Public License for more details.
- *      You should have received a copy of the GNU General Public
- *      License along with this program; if not, write to the Free
- *      Software Foundation, Inc., 59 Temple Place - Suite 330,
- *      Boston, MA  02111-1307, USA.
- *      The full GNU General Public License is included in this
- *      distribution in the file called COPYING.
- *
- *
- *  ------------------------------------------------------------------
- *
- *      This simple allocator implementation provides a
- *      malloc()/free()-like interface for reserving space within a
- *      previously reserved block of memory.  It is not specific to
- *      any hardware, nor is it coupled with the lower level paging
- *      mechanism.
- *
- *      The primary goal of this implementation is to provide a means
- *      to partition an arbitrary block of memory without actually
- *      accessing the memory or incurring any hardware side-effects
- *      (e.g. paging).  It is, in effect, a bookkeeping mechanism for
- *      buffers.
- */
-
-
-#include "memrar_allocator.h"
-#include <linux/slab.h>
-#include <linux/bug.h>
-#include <linux/kernel.h>
-
-
-struct memrar_allocator *memrar_create_allocator(unsigned long base,
-						 size_t capacity,
-						 size_t block_size)
-{
-	struct memrar_allocator *allocator  = NULL;
-	struct memrar_address_ranges *first_node = NULL;
-
-	/*
-	 * Make sure the base address is aligned on a block_size
-	 * boundary.
-	 *
-	 * @todo Is this necessary?
-	 */
-	/* base = ALIGN(base, block_size); */
-
-	/* Validate parameters.
-	 *
-	 * Make sure we can allocate the entire memory space.  Zero
-	 * capacity or block size are obviously invalid.
-	 */
-	if (base == 0
-	    || capacity == 0
-	    || block_size == 0
-	    || ULONG_MAX - capacity < base
-	    || capacity < block_size)
-		return allocator;
-
-	/*
-	 * There isn't much point in creating a memory allocator that
-	 * is only capable of holding one block but we'll allow it,
-	 * and issue a diagnostic.
-	 */
-	WARN(capacity < block_size * 2,
-	     "memrar: Only one block available to allocator.\n");
-
-	allocator = kmalloc(sizeof(*allocator), GFP_KERNEL);
-
-	if (allocator == NULL)
-		return allocator;
-
-	mutex_init(&allocator->lock);
-	allocator->base = base;
-
-	/* Round the capacity down to a multiple of block_size. */
-	allocator->capacity = (capacity / block_size) * block_size;
-
-	allocator->block_size = block_size;
-
-	allocator->largest_free_area = allocator->capacity;
-
-	/* Initialize the handle and free lists. */
-	INIT_LIST_HEAD(&allocator->allocated_list.list);
-	INIT_LIST_HEAD(&allocator->free_list.list);
-
-	first_node = kmalloc(sizeof(*first_node), GFP_KERNEL);
-	if (first_node == NULL)	{
-		kfree(allocator);
-		allocator = NULL;
-	} else {
-		/* Full range of blocks is available. */
-		first_node->range.begin = base;
-		first_node->range.end   = base + allocator->capacity;
-		list_add(&first_node->list,
-			 &allocator->free_list.list);
-	}
-
-	return allocator;
-}
-
-void memrar_destroy_allocator(struct memrar_allocator *allocator)
-{
-	/*
-	 * Assume that the memory allocator lock isn't held at this
-	 * point in time.  Caller must ensure that.
-	 */
-
-	struct memrar_address_ranges *pos = NULL;
-	struct memrar_address_ranges *n   = NULL;
-
-	if (allocator == NULL)
-		return;
-
-	mutex_lock(&allocator->lock);
-
-	/* Reclaim free list resources. */
-	list_for_each_entry_safe(pos,
-				 n,
-				 &allocator->free_list.list,
-				 list) {
-		list_del(&pos->list);
-		kfree(pos);
-	}
-
-	mutex_unlock(&allocator->lock);
-
-	kfree(allocator);
-}
-
-unsigned long memrar_allocator_alloc(struct memrar_allocator *allocator,
-				     size_t size)
-{
-	struct memrar_address_ranges *pos = NULL;
-
-	size_t num_blocks;
-	unsigned long reserved_bytes;
-
-	/*
-	 * Address of allocated buffer.  We assume that zero is not a
-	 * valid address.
-	 */
-	unsigned long addr = 0;
-
-	if (allocator == NULL || size == 0)
-		return addr;
-
-	/* Reserve enough blocks to hold the amount of bytes requested. */
-	num_blocks = DIV_ROUND_UP(size, allocator->block_size);
-
-	reserved_bytes = num_blocks * allocator->block_size;
-
-	mutex_lock(&allocator->lock);
-
-	if (reserved_bytes > allocator->largest_free_area) {
-		mutex_unlock(&allocator->lock);
-		return addr;
-	}
-
-	/*
-	 * Iterate through the free list to find a suitably sized
-	 * range of free contiguous memory blocks.
-	 *
-	 * We also take the opportunity to reset the size of the
-	 * largest free area size statistic.
-	 */
-	list_for_each_entry(pos, &allocator->free_list.list, list) {
-		struct memrar_address_range * const fr = &pos->range;
-		size_t const curr_size = fr->end - fr->begin;
-
-		if (curr_size >= reserved_bytes && addr == 0) {
-			struct memrar_address_range *range = NULL;
-			struct memrar_address_ranges * const new_node =
-				kmalloc(sizeof(*new_node), GFP_KERNEL);
-
-			if (new_node == NULL)
-				break;
-
-			list_add(&new_node->list,
-				 &allocator->allocated_list.list);
-
-			/*
-			 * Carve out area of memory from end of free
-			 * range.
-			 */
-			range        = &new_node->range;
-			range->end   = fr->end;
-			fr->end     -= reserved_bytes;
-			range->begin = fr->end;
-			addr         = range->begin;
-
-			/*
-			 * Check if largest area has decreased in
-			 * size.  We'll need to continue scanning for
-			 * the next largest area if it has.
-			 */
-			if (curr_size == allocator->largest_free_area)
-				allocator->largest_free_area -=
-					reserved_bytes;
-			else
-				break;
-		}
-
-		/*
-		 * Reset largest free area size statistic as needed,
-		 * but only if we've actually allocated memory.
-		 */
-		if (addr != 0
-		    && curr_size > allocator->largest_free_area) {
-			allocator->largest_free_area = curr_size;
-			break;
-		}
-	}
-
-	mutex_unlock(&allocator->lock);
-
-	return addr;
-}
-
-long memrar_allocator_free(struct memrar_allocator *allocator,
-			   unsigned long addr)
-{
-	struct list_head *pos = NULL;
-	struct list_head *tmp = NULL;
-	struct list_head *dst = NULL;
-
-	struct memrar_address_ranges      *allocated = NULL;
-	struct memrar_address_range const *handle    = NULL;
-
-	unsigned long old_end        = 0;
-	unsigned long new_chunk_size = 0;
-
-	if (allocator == NULL)
-		return -EINVAL;
-
-	if (addr == 0)
-		return 0;  /* Ignore "free(0)". */
-
-	mutex_lock(&allocator->lock);
-
-	/* Find the corresponding handle. */
-	list_for_each_entry(allocated,
-			    &allocator->allocated_list.list,
-			    list) {
-		if (allocated->range.begin == addr) {
-			handle = &allocated->range;
-			break;
-		}
-	}
-
-	/* No such buffer created by this allocator. */
-	if (handle == NULL) {
-		mutex_unlock(&allocator->lock);
-		return -EFAULT;
-	}
-
-	/*
-	 * Coalesce adjacent chunks of memory if possible.
-	 *
-	 * @note This isn't full blown coalescing since we're only
-	 *       coalescing at most three chunks of memory.
-	 */
-	list_for_each_safe(pos, tmp, &allocator->free_list.list) {
-		/* @todo O(n) performance.  Optimize. */
-
-		struct memrar_address_range * const chunk =
-			&list_entry(pos,
-				    struct memrar_address_ranges,
-				    list)->range;
-
-		/* Extend size of existing free adjacent chunk. */
-		if (chunk->end == handle->begin) {
-			/*
-			 * Chunk "less than" than the one we're
-			 * freeing is adjacent.
-			 *
-			 * Before:
-			 *
-			 *   +-----+------+
-			 *   |chunk|handle|
-			 *   +-----+------+
-			 *
-			 * After:
-			 *
-			 *   +------------+
-			 *   |   chunk    |
-			 *   +------------+
-			 */
-
-			struct memrar_address_ranges const * const next =
-				list_entry(pos->next,
-					   struct memrar_address_ranges,
-					   list);
-
-			chunk->end = handle->end;
-
-			/*
-			 * Now check if next free chunk is adjacent to
-			 * the current extended free chunk.
-			 *
-			 * Before:
-			 *
-			 *   +------------+----+
-			 *   |   chunk    |next|
-			 *   +------------+----+
-			 *
-			 * After:
-			 *
-			 *   +-----------------+
-			 *   |      chunk      |
-			 *   +-----------------+
-			 */
-			if (!list_is_singular(pos)
-			    && chunk->end == next->range.begin) {
-				chunk->end = next->range.end;
-				list_del(pos->next);
-				kfree(next);
-			}
-
-			list_del(&allocated->list);
-
-			new_chunk_size = chunk->end - chunk->begin;
-
-			goto exit_memrar_free;
-
-		} else if (handle->end == chunk->begin) {
-			/*
-			 * Chunk "greater than" than the one we're
-			 * freeing is adjacent.
-			 *
-			 *   +------+-----+
-			 *   |handle|chunk|
-			 *   +------+-----+
-			 *
-			 * After:
-			 *
-			 *   +------------+
-			 *   |   chunk    |
-			 *   +------------+
-			 */
-
-			struct memrar_address_ranges const * const prev =
-				list_entry(pos->prev,
-					   struct memrar_address_ranges,
-					   list);
-
-			chunk->begin = handle->begin;
-
-			/*
-			 * Now check if previous free chunk is
-			 * adjacent to the current extended free
-			 * chunk.
-			 *
-			 *
-			 * Before:
-			 *
-			 *   +----+------------+
-			 *   |prev|   chunk    |
-			 *   +----+------------+
-			 *
-			 * After:
-			 *
-			 *   +-----------------+
-			 *   |      chunk      |
-			 *   +-----------------+
-			 */
-			if (!list_is_singular(pos)
-			    && prev->range.end == chunk->begin) {
-				chunk->begin = prev->range.begin;
-				list_del(pos->prev);
-				kfree(prev);
-			}
-
-			list_del(&allocated->list);
-
-			new_chunk_size = chunk->end - chunk->begin;
-
-			goto exit_memrar_free;
-
-		} else if (chunk->end < handle->begin
-			   && chunk->end > old_end) {
-			/* Keep track of where the entry could be
-			 * potentially moved from the "allocated" list
-			 * to the "free" list if coalescing doesn't
-			 * occur, making sure the "free" list remains
-			 * sorted.
-			 */
-			old_end = chunk->end;
-			dst = pos;
-		}
-	}
-
-	/*
-	 * Nothing to coalesce.
-	 *
-	 * Move the entry from the "allocated" list to the "free"
-	 * list.
-	 */
-	list_move(&allocated->list, dst);
-	new_chunk_size = handle->end - handle->begin;
-	allocated = NULL;
-
-exit_memrar_free:
-
-	if (new_chunk_size > allocator->largest_free_area)
-		allocator->largest_free_area = new_chunk_size;
-
-	mutex_unlock(&allocator->lock);
-
-	kfree(allocated);
-
-	return 0;
-}
-
-
-
-/*
-  Local Variables:
-    c-file-style: "linux"
-  End:
-*/
diff --git a/drivers/staging/memrar/memrar_allocator.h b/drivers/staging/memrar/memrar_allocator.h
deleted file mode 100644
index 0b80dead710f..000000000000
--- a/drivers/staging/memrar/memrar_allocator.h
+++ /dev/null
@@ -1,149 +0,0 @@
-/*
- *      Copyright (C) 2010 Intel Corporation. All rights reserved.
- *
- *      This program is free software; you can redistribute it and/or
- *      modify it under the terms of version 2 of the GNU General
- *      Public License as published by the Free Software Foundation.
- *
- *      This program is distributed in the hope that it will be
- *      useful, but WITHOUT ANY WARRANTY; without even the implied
- *      warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
- *      PURPOSE.  See the GNU General Public License for more details.
- *      You should have received a copy of the GNU General Public
- *      License along with this program; if not, write to the Free
- *      Software Foundation, Inc., 59 Temple Place - Suite 330,
- *      Boston, MA  02111-1307, USA.
- *      The full GNU General Public License is included in this
- *      distribution in the file called COPYING.
- */
-
-#ifndef MEMRAR_ALLOCATOR_H
-#define MEMRAR_ALLOCATOR_H
-
-
-#include <linux/mutex.h>
-#include <linux/list.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-
-
-/**
- * struct memrar_address_range - struct that describes a memory range
- * @begin:	Beginning of available address range.
- * @end:	End of available address range, one past the end,
- *		i.e. [begin, end).
- */
-struct memrar_address_range {
-/* private: internal use only */
-	unsigned long begin;
-	unsigned long end;
-};
-
-/**
- * struct memrar_address_ranges - list of areas of memory.
- * @list:	Linked list of address ranges.
- * @range:	Memory address range corresponding to given list node.
- */
-struct memrar_address_ranges {
-/* private: internal use only */
-	struct list_head list;
-	struct memrar_address_range range;
-};
-
-/**
- * struct memrar_allocator - encapsulation of the memory allocator state
- * @lock:		Lock used to synchronize access to the memory
- *			allocator state.
- * @base:		Base (start) address of the allocator memory
- *			space.
- * @capacity:		Size of the allocator memory space in bytes.
- * @block_size:		The size in bytes of individual blocks within
- *			the allocator memory space.
- * @largest_free_area:	Largest free area of memory in the allocator
- *			in bytes.
- * @allocated_list:	List of allocated memory block address
- *			ranges.
- * @free_list:		List of free address ranges.
- *
- * This structure contains all memory allocator state, including the
- * base address, capacity, free list, lock, etc.
- */
-struct memrar_allocator {
-/* private: internal use only */
-	struct mutex lock;
-	unsigned long base;
-	size_t capacity;
-	size_t block_size;
-	size_t largest_free_area;
-	struct memrar_address_ranges allocated_list;
-	struct memrar_address_ranges free_list;
-};
-
-/**
- * memrar_create_allocator() - create a memory allocator
- * @base:	Address at which the memory allocator begins.
- * @capacity:	Desired size of the memory allocator.  This value must
- *		be larger than the block_size, ideally more than twice
- *		as large since there wouldn't be much point in using a
- *		memory allocator otherwise.
- * @block_size:	The size of individual blocks within the memory
- *		allocator.  This value must smaller than the
- *		capacity.
- *
- * Create a memory allocator with the given capacity and block size.
- * The capacity will be reduced to be a multiple of the block size, if
- * necessary.
- *
- * Returns an instance of the memory allocator, if creation succeeds,
- * otherwise zero if creation fails.  Failure may occur if not enough
- * kernel memory exists to create the memrar_allocator instance
- * itself, or if the capacity and block_size arguments are not
- * compatible or make sense.
- */
-struct memrar_allocator *memrar_create_allocator(unsigned long base,
-						 size_t capacity,
-						 size_t block_size);
-
-/**
- * memrar_destroy_allocator() - destroy allocator
- * @allocator:	The allocator being destroyed.
- *
- * Reclaim resources held by the memory allocator.  The caller must
- * explicitly free all memory reserved by memrar_allocator_alloc()
- * prior to calling this function.  Otherwise leaks will occur.
- */
-void memrar_destroy_allocator(struct memrar_allocator *allocator);
-
-/**
- * memrar_allocator_alloc() - reserve an area of memory of given size
- * @allocator:	The allocator instance being used to reserve buffer.
- * @size:	The size in bytes of the buffer to allocate.
- *
- * This functions reserves an area of memory managed by the given
- * allocator.  It returns zero if allocation was not possible.
- * Failure may occur if the allocator no longer has space available.
- */
-unsigned long memrar_allocator_alloc(struct memrar_allocator *allocator,
-				     size_t size);
-
-/**
- * memrar_allocator_free() - release buffer starting at given address
- * @allocator:	The allocator instance being used to release the buffer.
- * @address:	The address of the buffer being released.
- *
- * Release an area of memory starting at the given address.  Failure
- * could occur if the given address is not in the address space
- * managed by the allocator.  Returns zero on success or an errno
- * (negative value) on failure.
- */
-long memrar_allocator_free(struct memrar_allocator *allocator,
-			   unsigned long address);
-
-#endif  /* MEMRAR_ALLOCATOR_H */
-
-
-/*
-  Local Variables:
-    c-file-style: "linux"
-  End:
-*/
diff --git a/drivers/staging/memrar/memrar_handler.c b/drivers/staging/memrar/memrar_handler.c
deleted file mode 100644
index cfcaa8e5b8e6..000000000000
--- a/drivers/staging/memrar/memrar_handler.c
+++ /dev/null
@@ -1,1007 +0,0 @@
-/*
- *      memrar_handler 1.0:  An Intel restricted access region handler device
- *
- *      Copyright (C) 2010 Intel Corporation. All rights reserved.
- *
- *      This program is free software; you can redistribute it and/or
- *      modify it under the terms of version 2 of the GNU General
- *      Public License as published by the Free Software Foundation.
- *
- *      This program is distributed in the hope that it will be
- *      useful, but WITHOUT ANY WARRANTY; without even the implied
- *      warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
- *      PURPOSE.  See the GNU General Public License for more details.
- *      You should have received a copy of the GNU General Public
- *      License along with this program; if not, write to the Free
- *      Software Foundation, Inc., 59 Temple Place - Suite 330,
- *      Boston, MA  02111-1307, USA.
- *      The full GNU General Public License is included in this
- *      distribution in the file called COPYING.
- *
- * -------------------------------------------------------------------
- *
- *      Moorestown restricted access regions (RAR) provide isolated
- *      areas of main memory that are only acceessible by authorized
- *      devices.
- *
- *      The Intel Moorestown RAR handler module exposes a kernel space
- *      RAR memory management mechanism.  It is essentially a
- *      RAR-specific allocator.
- *
- *      Besides providing RAR buffer management, the RAR handler also
- *      behaves in many ways like an OS virtual memory manager.  For
- *      example, the RAR "handles" created by the RAR handler are
- *      analogous to user space virtual addresses.
- *
- *      RAR memory itself is never accessed directly by the RAR
- *      handler.
- */
-
-#include <linux/miscdevice.h>
-#include <linux/fs.h>
-#include <linux/slab.h>
-#include <linux/kref.h>
-#include <linux/mutex.h>
-#include <linux/kernel.h>
-#include <linux/uaccess.h>
-#include <linux/mm.h>
-#include <linux/ioport.h>
-#include <linux/io.h>
-#include <linux/rar_register.h>
-
-#include "memrar.h"
-#include "memrar_allocator.h"
-
-
-#define MEMRAR_VER "1.0"
-
-/*
- * Moorestown supports three restricted access regions.
- *
- * We only care about the first two, video and audio.  The third,
- * reserved for Chaabi and the P-unit, will be handled by their
- * respective drivers.
- */
-#define MRST_NUM_RAR 2
-
-/* ---------------- -------------------- ------------------- */
-
-/**
- * struct memrar_buffer_info - struct that keeps track of all RAR buffers
- * @list:	Linked list of memrar_buffer_info objects.
- * @buffer:	Core RAR buffer information.
- * @refcount:	Reference count.
- * @owner:	File handle corresponding to process that reserved the
- *		block of memory in RAR.  This will be zero for buffers
- *		allocated by other drivers instead of by a user space
- *		process.
- *
- * This structure encapsulates a link list of RAR buffers, as well as
- * other characteristics specific to a given list node, such as the
- * reference count on the corresponding RAR buffer.
- */
-struct memrar_buffer_info {
-	struct list_head list;
-	struct RAR_buffer buffer;
-	struct kref refcount;
-	struct file *owner;
-};
-
-/**
- * struct memrar_rar_info - characteristics of a given RAR
- * @base:	Base bus address of the RAR.
- * @length:	Length of the RAR.
- * @iobase:	Virtual address of RAR mapped into kernel.
- * @allocator:	Allocator associated with the RAR.  Note the allocator
- *		"capacity" may be smaller than the RAR length if the
- *		length is not a multiple of the configured allocator
- *		block size.
- * @buffers:	Table that keeps track of all reserved RAR buffers.
- * @lock:	Lock used to synchronize access to RAR-specific data
- *		structures.
- *
- * Each RAR has an associated memrar_rar_info structure that describes
- * where in memory the RAR is located, how large it is, and a list of
- * reserved RAR buffers inside that RAR.  Each RAR also has a mutex
- * associated with it to reduce lock contention when operations on
- * multiple RARs are performed in parallel.
- */
-struct memrar_rar_info {
-	dma_addr_t base;
-	unsigned long length;
-	void __iomem *iobase;
-	struct memrar_allocator *allocator;
-	struct memrar_buffer_info buffers;
-	struct mutex lock;
-	int allocated;	/* True if we own this RAR */
-};
-
-/*
- * Array of RAR characteristics.
- */
-static struct memrar_rar_info memrars[MRST_NUM_RAR];
-
-/* ---------------- -------------------- ------------------- */
-
-/* Validate RAR type. */
-static inline int memrar_is_valid_rar_type(u32 type)
-{
-	return type == RAR_TYPE_VIDEO || type == RAR_TYPE_AUDIO;
-}
-
-/* Check if an address/handle falls with the given RAR memory range. */
-static inline int memrar_handle_in_range(struct memrar_rar_info *rar,
-					 u32 vaddr)
-{
-	unsigned long const iobase = (unsigned long) (rar->iobase);
-	return (vaddr >= iobase && vaddr < iobase + rar->length);
-}
-
-/* Retrieve RAR information associated with the given handle. */
-static struct memrar_rar_info *memrar_get_rar_info(u32 vaddr)
-{
-	int i;
-	for (i = 0; i < MRST_NUM_RAR; ++i) {
-		struct memrar_rar_info * const rar = &memrars[i];
-		if (memrar_handle_in_range(rar, vaddr))
-			return rar;
-	}
-
-	return NULL;
-}
-
-/**
- *	memrar_get_bus address		-	handle to bus address
- *
- *	Retrieve bus address from given handle.
- *
- *	Returns address corresponding to given handle.  Zero if handle is
- *	invalid.
- */
-static dma_addr_t memrar_get_bus_address(
-	struct memrar_rar_info *rar,
-	u32 vaddr)
-{
-	unsigned long const iobase = (unsigned long) (rar->iobase);
-
-	if (!memrar_handle_in_range(rar, vaddr))
-		return 0;
-
-	/*
-	 * An assumption is made that the virtual address offset is
-	 * the same as the bus address offset, at least based on the
-	 * way this driver is implemented.  For example, vaddr + 2 ==
-	 * baddr + 2.
-	 *
-	 * @todo Is that a valid assumption?
-	 */
-	return rar->base + (vaddr - iobase);
-}
-
-/**
- *	memrar_get_physical_address	-	handle to physical address
- *
- *	Retrieve physical address from given handle.
- *
- *	Returns address corresponding to given handle.  Zero if handle is
- *	invalid.
- */
-static dma_addr_t memrar_get_physical_address(
-	struct memrar_rar_info *rar,
-	u32 vaddr)
-{
-	/*
-	 * @todo This assumes that the bus address and physical
-	 *       address are the same.  That is true for Moorestown
-	 *       but not necessarily on other platforms.  This
-	 *       deficiency should be addressed at some point.
-	 */
-	return memrar_get_bus_address(rar, vaddr);
-}
-
-/**
- *	memrar_release_block	-	release a block to the pool
- *	@kref: kref of block
- *
- *	Core block release code. A node has hit zero references so can
- *	be released and the lists must be updated.
- *
- *	Note: This code removes the node from a list.  Make sure any list
- *	iteration is performed using list_for_each_safe().
- */
-static void memrar_release_block_i(struct kref *ref)
-{
-	/*
-	 * Last reference is being released.  Remove from the table,
-	 * and reclaim resources.
-	 */
-
-	struct memrar_buffer_info * const node =
-		container_of(ref, struct memrar_buffer_info, refcount);
-
-	struct RAR_block_info * const user_info =
-		&node->buffer.info;
-
-	struct memrar_allocator * const allocator =
-		memrars[user_info->type].allocator;
-
-	list_del(&node->list);
-
-	memrar_allocator_free(allocator, user_info->handle);
-
-	kfree(node);
-}
-
-/**
- *	memrar_init_rar_resources	-	configure a RAR
- *	@rarnum: rar that has been allocated
- *	@devname: name of our device
- *
- *	Initialize RAR parameters, such as bus addresses, etc and make
- *	the resource accessible.
- */
-static int memrar_init_rar_resources(int rarnum, char const *devname)
-{
-	/* ---- Sanity Checks ----
-	 * 1. RAR bus addresses in both Lincroft and Langwell RAR
-	 *    registers should be the same.
-	 *    a. There's no way we can do this through IA.
-	 *
-	 * 2. Secure device ID in Langwell RAR registers should be set
-	 *    appropriately, e.g. only LPE DMA for the audio RAR, and
-	 *    security for the other Langwell based RAR registers.
-	 *    a. There's no way we can do this through IA.
-	 *
-	 * 3. Audio and video RAR registers and RAR access should be
-	 *    locked down.  If not, enable RAR access control.  Except
-	 *    for debugging purposes, there is no reason for them to
-	 *    be unlocked.
-	 *    a.  We can only do this for the Lincroft (IA) side.
-	 *
-	 * @todo Should the RAR handler driver even be aware of audio
-	 *       and video RAR settings?
-	 */
-
-	/*
-	 * RAR buffer block size.
-	 *
-	 * We choose it to be the size of a page to simplify the
-	 * /dev/memrar mmap() implementation and usage.  Otherwise
-	 * paging is not involved once an RAR is locked down.
-	 */
-	static size_t const RAR_BLOCK_SIZE = PAGE_SIZE;
-
-	dma_addr_t low, high;
-	struct memrar_rar_info * const rar = &memrars[rarnum];
-
-	BUG_ON(MRST_NUM_RAR != ARRAY_SIZE(memrars));
-	BUG_ON(!memrar_is_valid_rar_type(rarnum));
-	BUG_ON(rar->allocated);
-
-	if (rar_get_address(rarnum, &low, &high) != 0)
-		/* No RAR is available. */
-		return -ENODEV;
-
-	if (low == 0 || high == 0) {
-		rar->base      = 0;
-		rar->length    = 0;
-		rar->iobase    = NULL;
-		rar->allocator = NULL;
-		return -ENOSPC;
-	}
-
-	/*
-	 * @todo Verify that LNC and LNW RAR register contents
-	 *       addresses, security, etc are compatible and
-	 *       consistent).
-	 */
-
-	rar->length = high - low + 1;
-
-	/* Claim RAR memory as our own. */
-	if (request_mem_region(low, rar->length, devname) == NULL) {
-		rar->length = 0;
-		pr_err("%s: Unable to claim RAR[%d] memory.\n",
-		       devname, rarnum);
-		pr_err("%s: RAR[%d] disabled.\n", devname, rarnum);
-		return -EBUSY;
-	}
-
-	rar->base = low;
-
-	/*
-	 * Now map it into the kernel address space.
-	 *
-	 * Note that the RAR memory may only be accessed by IA
-	 * when debugging.  Otherwise attempts to access the
-	 * RAR memory when it is locked down will result in
-	 * behavior similar to writing to /dev/null and
-	 * reading from /dev/zero.  This behavior is enforced
-	 * by the hardware.  Even if we don't access the
-	 * memory, mapping it into the kernel provides us with
-	 * a convenient RAR handle to bus address mapping.
-	 */
-	rar->iobase = ioremap_nocache(rar->base, rar->length);
-	if (rar->iobase == NULL) {
-		pr_err("%s: Unable to map RAR memory.\n", devname);
-		release_mem_region(low, rar->length);
-		return -ENOMEM;
-	}
-
-	/* Initialize corresponding memory allocator. */
-	rar->allocator = memrar_create_allocator((unsigned long) rar->iobase,
-						rar->length, RAR_BLOCK_SIZE);
-	if (rar->allocator == NULL) {
-		iounmap(rar->iobase);
-		release_mem_region(low, rar->length);
-		return -ENOMEM;
-	}
-
-	pr_info("%s: BRAR[%d] bus address range = [0x%lx, 0x%lx]\n",
-		devname, rarnum, (unsigned long) low, (unsigned long) high);
-
-	pr_info("%s: BRAR[%d] size = %zu KiB\n",
-			devname, rarnum, rar->allocator->capacity / 1024);
-
-	rar->allocated = 1;
-	return 0;
-}
-
-/**
- *	memrar_fini_rar_resources	-	free up RAR resources
- *
- *	Finalize RAR resources. Free up the resource tables, hand the memory
- *	back to the kernel, unmap the device and release the address space.
- */
-static void memrar_fini_rar_resources(void)
-{
-	int z;
-	struct memrar_buffer_info *pos;
-	struct memrar_buffer_info *tmp;
-
-	/*
-	 * @todo Do we need to hold a lock at this point in time?
-	 *       (module initialization failure or exit?)
-	 */
-
-	for (z = MRST_NUM_RAR; z-- != 0; ) {
-		struct memrar_rar_info * const rar = &memrars[z];
-
-		if (!rar->allocated)
-			continue;
-
-		/* Clean up remaining resources. */
-
-		list_for_each_entry_safe(pos,
-					 tmp,
-					 &rar->buffers.list,
-					 list) {
-			kref_put(&pos->refcount, memrar_release_block_i);
-		}
-
-		memrar_destroy_allocator(rar->allocator);
-		rar->allocator = NULL;
-
-		iounmap(rar->iobase);
-		release_mem_region(rar->base, rar->length);
-
-		rar->iobase = NULL;
-		rar->base = 0;
-		rar->length = 0;
-
-		unregister_rar(z);
-	}
-}
-
-/**
- *	memrar_reserve_block	-	handle an allocation request
- *	@request: block being requested
- *	@filp: owner it is tied to
- *
- *	Allocate a block of the requested RAR. If successful return the
- *	request object filled in and zero, if not report an error code
- */
-
-static long memrar_reserve_block(struct RAR_buffer *request,
-				 struct file *filp)
-{
-	struct RAR_block_info * const rinfo = &request->info;
-	struct RAR_buffer *buffer;
-	struct memrar_buffer_info *buffer_info;
-	u32 handle;
-	struct memrar_rar_info *rar = NULL;
-
-	/* Prevent array overflow. */
-	if (!memrar_is_valid_rar_type(rinfo->type))
-		return -EINVAL;
-
-	rar = &memrars[rinfo->type];
-	if (!rar->allocated)
-		return -ENODEV;
-
-	/* Reserve memory in RAR. */
-	handle = memrar_allocator_alloc(rar->allocator, rinfo->size);
-	if (handle == 0)
-		return -ENOMEM;
-
-	buffer_info = kmalloc(sizeof(*buffer_info), GFP_KERNEL);
-
-	if (buffer_info == NULL) {
-		memrar_allocator_free(rar->allocator, handle);
-		return -ENOMEM;
-	}
-
-	buffer = &buffer_info->buffer;
-	buffer->info.type = rinfo->type;
-	buffer->info.size = rinfo->size;
-
-	/* Memory handle corresponding to the bus address. */
-	buffer->info.handle = handle;
-	buffer->bus_address = memrar_get_bus_address(rar, handle);
-
-	/*
-	 * Keep track of owner so that we can later cleanup if
-	 * necessary.
-	 */
-	buffer_info->owner = filp;
-
-	kref_init(&buffer_info->refcount);
-
-	mutex_lock(&rar->lock);
-	list_add(&buffer_info->list, &rar->buffers.list);
-	mutex_unlock(&rar->lock);
-
-	rinfo->handle = buffer->info.handle;
-	request->bus_address = buffer->bus_address;
-
-	return 0;
-}
-
-/**
- *	memrar_release_block		-	release a RAR block
- *	@addr: address in RAR space
- *
- *	Release a previously allocated block. Releases act on complete
- *	blocks, partially freeing a block is not supported
- */
-
-static long memrar_release_block(u32 addr)
-{
-	struct memrar_buffer_info *pos;
-	struct memrar_buffer_info *tmp;
-	struct memrar_rar_info * const rar = memrar_get_rar_info(addr);
-	long result = -EINVAL;
-
-	if (rar == NULL)
-		return -ENOENT;
-
-	mutex_lock(&rar->lock);
-
-	/*
-	 * Iterate through the buffer list to find the corresponding
-	 * buffer to be released.
-	 */
-	list_for_each_entry_safe(pos,
-				 tmp,
-				 &rar->buffers.list,
-				 list) {
-		struct RAR_block_info * const info =
-			&pos->buffer.info;
-
-		/*
-		 * Take into account handle offsets that may have been
-		 * added to the base handle, such as in the following
-		 * scenario:
-		 *
-		 *     u32 handle = base + offset;
-		 *     rar_handle_to_bus(handle);
-		 *     rar_release(handle);
-		 */
-		if (addr >= info->handle
-		    && addr < (info->handle + info->size)
-		    && memrar_is_valid_rar_type(info->type)) {
-			kref_put(&pos->refcount, memrar_release_block_i);
-			result = 0;
-			break;
-		}
-	}
-
-	mutex_unlock(&rar->lock);
-
-	return result;
-}
-
-/**
- *	memrar_get_stats	-	read statistics for a RAR
- *	@r: statistics to be filled in
- *
- *	Returns the statistics data for the RAR, or an error code if
- *	the request cannot be completed
- */
-static long memrar_get_stat(struct RAR_stat *r)
-{
-	struct memrar_allocator *allocator;
-
-	if (!memrar_is_valid_rar_type(r->type))
-		return -EINVAL;
-
-	if (!memrars[r->type].allocated)
-		return -ENODEV;
-
-	allocator = memrars[r->type].allocator;
-
-	BUG_ON(allocator == NULL);
-
-	/*
-	 * Allocator capacity doesn't change over time.  No
-	 * need to synchronize.
-	 */
-	r->capacity = allocator->capacity;
-
-	mutex_lock(&allocator->lock);
-	r->largest_block_size = allocator->largest_free_area;
-	mutex_unlock(&allocator->lock);
-	return 0;
-}
-
-/**
- *	memrar_ioctl		-	ioctl callback
- *	@filp: file issuing the request
- *	@cmd: command
- *	@arg: pointer to control information
- *
- *	Perform one of the ioctls supported by the memrar device
- */
-
-static long memrar_ioctl(struct file *filp,
-			 unsigned int cmd,
-			 unsigned long arg)
-{
-	void __user *argp = (void __user *)arg;
-	long result = 0;
-
-	struct RAR_buffer buffer;
-	struct RAR_block_info * const request = &buffer.info;
-	struct RAR_stat rar_info;
-	u32 rar_handle;
-
-	switch (cmd) {
-	case RAR_HANDLER_RESERVE:
-		if (copy_from_user(request,
-				   argp,
-				   sizeof(*request)))
-			return -EFAULT;
-
-		result = memrar_reserve_block(&buffer, filp);
-		if (result != 0)
-			return result;
-
-		return copy_to_user(argp, request, sizeof(*request));
-
-	case RAR_HANDLER_RELEASE:
-		if (copy_from_user(&rar_handle,
-				   argp,
-				   sizeof(rar_handle)))
-			return -EFAULT;
-
-		return memrar_release_block(rar_handle);
-
-	case RAR_HANDLER_STAT:
-		if (copy_from_user(&rar_info,
-				   argp,
-				   sizeof(rar_info)))
-			return -EFAULT;
-
-		/*
-		 * Populate the RAR_stat structure based on the RAR
-		 * type given by the user
-		 */
-		if (memrar_get_stat(&rar_info) != 0)
-			return -EINVAL;
-
-		/*
-		 * @todo Do we need to verify destination pointer
-		 *       "argp" is non-zero?  Is that already done by
-		 *       copy_to_user()?
-		 */
-		return copy_to_user(argp,
-				    &rar_info,
-				    sizeof(rar_info)) ? -EFAULT : 0;
-
-	default:
-		return -ENOTTY;
-	}
-
-	return 0;
-}
-
-/**
- *	memrar_mmap		-	mmap helper for deubgging
- *	@filp: handle doing the mapping
- *	@vma: memory area
- *
- *	Support the mmap operation on the RAR space for debugging systems
- *	when the memory is not locked down.
- */
-
-static int memrar_mmap(struct file *filp, struct vm_area_struct *vma)
-{
-	/*
-	 * This mmap() implementation is predominantly useful for
-	 * debugging since the CPU will be prevented from accessing
-	 * RAR memory by the hardware when RAR is properly locked
-	 * down.
-	 *
-	 * In order for this implementation to be useful RAR memory
-	 * must be not be locked down.  However, we only want to do
-	 * that when debugging.  DO NOT leave RAR memory unlocked in a
-	 * deployed device that utilizes RAR.
-	 */
-
-	size_t const size = vma->vm_end - vma->vm_start;
-
-	/* Users pass the RAR handle as the mmap() offset parameter. */
-	unsigned long const handle = vma->vm_pgoff << PAGE_SHIFT;
-
-	struct memrar_rar_info * const rar = memrar_get_rar_info(handle);
-	unsigned long pfn;
-
-	/* Only allow priviledged apps to go poking around this way */
-	if (!capable(CAP_SYS_RAWIO))
-		return -EPERM;
-
-	/* Invalid RAR handle or size passed to mmap(). */
-	if (rar == NULL
-	    || handle == 0
-	    || size > (handle - (unsigned long) rar->iobase))
-		return -EINVAL;
-
-	/*
-	 * Retrieve physical address corresponding to the RAR handle,
-	 * and convert it to a page frame.
-	 */
-	pfn = memrar_get_physical_address(rar, handle) >> PAGE_SHIFT;
-
-
-	pr_debug("memrar: mapping RAR range [0x%lx, 0x%lx) into user space.\n",
-		 handle,
-		 handle + size);
-
-	/*
-	 * Map RAR memory into user space.  This is really only useful
-	 * for debugging purposes since the memory won't be
-	 * accessible, i.e. reads return zero and writes are ignored,
-	 * when RAR access control is enabled.
-	 */
-	if (remap_pfn_range(vma,
-			    vma->vm_start,
-			    pfn,
-			    size,
-			    vma->vm_page_prot))
-		return -EAGAIN;
-
-	/* vma->vm_ops = &memrar_mem_ops; */
-
-	return 0;
-}
-
-/**
- *	memrar_open		-	device open method
- *	@inode: inode to open
- *	@filp: file handle
- *
- *	As we support multiple arbitary opens there is no work to be done
- *	really.
- */
-
-static int memrar_open(struct inode *inode, struct file *filp)
-{
-	nonseekable_open(inode, filp);
-	return 0;
-}
-
-/**
- *	memrar_release		-	close method for miscev
- *	@inode: inode of device
- *	@filp: handle that is going away
- *
- *	Free up all the regions that belong to this file handle. We use
- *	the handle as a natural Linux style 'lifetime' indicator and to
- *	ensure resources are not leaked when their owner explodes in an
- *	unplanned fashion.
- */
-
-static int memrar_release(struct inode *inode, struct file *filp)
-{
-	/* Free all regions associated with the given file handle. */
-
-	struct memrar_buffer_info *pos;
-	struct memrar_buffer_info *tmp;
-	int z;
-
-	for (z = 0; z != MRST_NUM_RAR; ++z) {
-		struct memrar_rar_info * const rar = &memrars[z];
-
-		mutex_lock(&rar->lock);
-
-		list_for_each_entry_safe(pos,
-					 tmp,
-					 &rar->buffers.list,
-					 list) {
-			if (filp == pos->owner)
-				kref_put(&pos->refcount,
-					 memrar_release_block_i);
-		}
-
-		mutex_unlock(&rar->lock);
-	}
-
-	return 0;
-}
-
-/**
- *	rar_reserve		-	reserve RAR memory
- *	@buffers: buffers to reserve
- *	@count: number wanted
- *
- *	Reserve a series of buffers in the RAR space. Returns the number of
- *	buffers successfully allocated
- */
-
-size_t rar_reserve(struct RAR_buffer *buffers, size_t count)
-{
-	struct RAR_buffer * const end =
-		(buffers == NULL ? buffers : buffers + count);
-	struct RAR_buffer *i;
-
-	size_t reserve_count = 0;
-
-	for (i = buffers; i != end; ++i) {
-		if (memrar_reserve_block(i, NULL) == 0)
-			++reserve_count;
-		else
-			i->bus_address = 0;
-	}
-
-	return reserve_count;
-}
-EXPORT_SYMBOL(rar_reserve);
-
-/**
- *	rar_release		-	return RAR buffers
- *	@buffers: buffers to release
- *	@size: size of released block
- *
- *	Return a set of buffers to the RAR pool
- */
-
-size_t rar_release(struct RAR_buffer *buffers, size_t count)
-{
-	struct RAR_buffer * const end =
-		(buffers == NULL ? buffers : buffers + count);
-	struct RAR_buffer *i;
-
-	size_t release_count = 0;
-
-	for (i = buffers; i != end; ++i) {
-		u32 * const handle = &i->info.handle;
-		if (memrar_release_block(*handle) == 0) {
-			/*
-			 * @todo We assume we should do this each time
-			 *       the ref count is decremented.  Should
-			 *       we instead only do this when the ref
-			 *       count has dropped to zero, and the
-			 *       buffer has been completely
-			 *       released/unmapped?
-			 */
-			*handle = 0;
-			++release_count;
-		}
-	}
-
-	return release_count;
-}
-EXPORT_SYMBOL(rar_release);
-
-/**
- *	rar_handle_to_bus	-	RAR to bus address
- *	@buffers: RAR buffer structure
- *	@count: number of buffers to convert
- *
- *	Turn a list of RAR handle mappings into actual bus addresses. Note
- *	that when the device is locked down the bus addresses in question
- *	are not CPU accessible.
- */
-
-size_t rar_handle_to_bus(struct RAR_buffer *buffers, size_t count)
-{
-	struct RAR_buffer * const end =
-		(buffers == NULL ? buffers : buffers + count);
-	struct RAR_buffer *i;
-	struct memrar_buffer_info *pos;
-
-	size_t conversion_count = 0;
-
-	/*
-	 * Find all bus addresses corresponding to the given handles.
-	 *
-	 * @todo Not liking this nested loop.  Optimize.
-	 */
-	for (i = buffers; i != end; ++i) {
-		struct memrar_rar_info * const rar =
-			memrar_get_rar_info(i->info.handle);
-
-		/*
-		 * Check if we have a bogus handle, and then continue
-		 * with remaining buffers.
-		 */
-		if (rar == NULL) {
-			i->bus_address = 0;
-			continue;
-		}
-
-		mutex_lock(&rar->lock);
-
-		list_for_each_entry(pos, &rar->buffers.list, list) {
-			struct RAR_block_info * const user_info =
-				&pos->buffer.info;
-
-			/*
-			 * Take into account handle offsets that may
-			 * have been added to the base handle, such as
-			 * in the following scenario:
-			 *
-			 *     u32 handle = base + offset;
-			 *     rar_handle_to_bus(handle);
-			 */
-
-			if (i->info.handle >= user_info->handle
-			    && i->info.handle < (user_info->handle
-						 + user_info->size)) {
-				u32 const offset =
-					i->info.handle - user_info->handle;
-
-				i->info.type = user_info->type;
-				i->info.size = user_info->size - offset;
-				i->bus_address =
-					pos->buffer.bus_address
-					+ offset;
-
-				/* Increment the reference count. */
-				kref_get(&pos->refcount);
-
-				++conversion_count;
-				break;
-			} else {
-				i->bus_address = 0;
-			}
-		}
-
-		mutex_unlock(&rar->lock);
-	}
-
-	return conversion_count;
-}
-EXPORT_SYMBOL(rar_handle_to_bus);
-
-static const struct file_operations memrar_fops = {
-	.owner = THIS_MODULE,
-	.unlocked_ioctl = memrar_ioctl,
-	.mmap           = memrar_mmap,
-	.open           = memrar_open,
-	.release        = memrar_release,
-	.llseek		= no_llseek,
-};
-
-static struct miscdevice memrar_miscdev = {
-	.minor = MISC_DYNAMIC_MINOR,    /* dynamic allocation */
-	.name = "memrar",               /* /dev/memrar */
-	.fops = &memrar_fops
-};
-
-static char const banner[] __initdata =
-	KERN_INFO
-	"Intel RAR Handler: " MEMRAR_VER " initialized.\n";
-
-/**
- *	memrar_registration_callback	-	RAR obtained
- *	@rar: RAR number
- *
- *	We have been granted ownership of the RAR. Add it to our memory
- *	management tables
- */
-
-static int memrar_registration_callback(unsigned long rar)
-{
-	/*
-	 * We initialize the RAR parameters early on so that we can
-	 * discontinue memrar device initialization and registration
-	 * if suitably configured RARs are not available.
-	 */
-	return memrar_init_rar_resources(rar, memrar_miscdev.name);
-}
-
-/**
- *	memrar_init	-	initialise RAR support
- *
- *	Initialise support for RAR handlers. This may get loaded before
- *	the RAR support is activated, but the callbacks on the registration
- *	will handle that situation for us anyway.
- */
-
-static int __init memrar_init(void)
-{
-	int err;
-	int i;
-
-	printk(banner);
-
-	/*
-	 * Some delayed initialization is performed in this driver.
-	 * Make sure resources that are used during driver clean-up
-	 * (e.g. during driver's release() function) are fully
-	 * initialized before first use.  This is particularly
-	 * important for the case when the delayed initialization
-	 * isn't completed, leaving behind a partially initialized
-	 * driver.
-	 *
-	 * Such a scenario can occur when RAR is not available on the
-	 * platform, and the driver is release()d.
-	 */
-	for (i = 0; i != ARRAY_SIZE(memrars); ++i) {
-		struct memrar_rar_info * const rar = &memrars[i];
-		mutex_init(&rar->lock);
-		INIT_LIST_HEAD(&rar->buffers.list);
-	}
-
-	err = misc_register(&memrar_miscdev);
-	if (err)
-		return err;
-
-	/* Now claim the two RARs we want */
-	err = register_rar(0, memrar_registration_callback, 0);
-	if (err)
-		goto fail;
-
-	err = register_rar(1, memrar_registration_callback, 1);
-	if (err == 0)
-		return 0;
-
-	/* It is possible rar 0 registered and allocated resources then rar 1
-	   failed so do a full resource free */
-	memrar_fini_rar_resources();
-fail:
-	misc_deregister(&memrar_miscdev);
-	return err;
-}
-
-/**
- *	memrar_exit	-	unregister and unload
- *
- *	Unregister the device and then unload any mappings and release
- *	the RAR resources
- */
-
-static void __exit memrar_exit(void)
-{
-	misc_deregister(&memrar_miscdev);
-	memrar_fini_rar_resources();
-}
-
-
-module_init(memrar_init);
-module_exit(memrar_exit);
-
-
-MODULE_AUTHOR("Ossama Othman <ossama.othman@intel.com>");
-MODULE_DESCRIPTION("Intel Restricted Access Region Handler");
-MODULE_LICENSE("GPL");
-MODULE_VERSION(MEMRAR_VER);
-
-
-
-/*
-  Local Variables:
-    c-file-style: "linux"
-  End:
-*/
diff --git a/drivers/staging/msm/mdp4_overlay.c b/drivers/staging/msm/mdp4_overlay.c
index de284c28faa1..b9acf5299297 100644
--- a/drivers/staging/msm/mdp4_overlay.c
+++ b/drivers/staging/msm/mdp4_overlay.c
@@ -696,7 +696,7 @@ void mdp4_mixer_stage_down(struct mdp4_overlay_pipe *pipe)
 	stage = pipe->mixer_stage;
 	mixer = pipe->mixer_num;
 
-	if (pipe != ctrl->stage[mixer][stage])	/* not runing */
+	if (pipe != ctrl->stage[mixer][stage])	/* not running */
 		return;
 
 	/* MDP_LAYERMIXER_IN_CFG, shard by both mixer 0 and 1  */
diff --git a/drivers/staging/msm/mdp_ppp_dq.c b/drivers/staging/msm/mdp_ppp_dq.c
index 3dc1c0cc61f9..3a687c7a5695 100644
--- a/drivers/staging/msm/mdp_ppp_dq.c
+++ b/drivers/staging/msm/mdp_ppp_dq.c
@@ -200,7 +200,7 @@ static void mdp_ppp_flush_dirty_djobs(void *cond)
 		msm_fb_ensure_mem_coherency_after_dma(job->info, &job->req, 1);
 
 		/* Schedule jobs for cleanup
-		 * A seperate worker thread does this */
+		 * A separate worker thread does this */
 		queue_delayed_work(mdp_ppp_djob_clnr, &job->cleaner,
 			mdp_timer_duration);
 	}
diff --git a/drivers/staging/msm/msm_fb.c b/drivers/staging/msm/msm_fb.c
index a2f29d464051..e7ef836eb8de 100644
--- a/drivers/staging/msm/msm_fb.c
+++ b/drivers/staging/msm/msm_fb.c
@@ -859,7 +859,7 @@ static int msm_fb_register(struct msm_fb_data_type *mfd)
 		break;
 
 	default:
-		MSM_FB_ERR("msm_fb_init: fb %d unkown image type!\n",
+		MSM_FB_ERR("msm_fb_init: fb %d unknown image type!\n",
 			   mfd->index);
 		return ret;
 	}
@@ -1793,9 +1793,9 @@ static int msmfb_async_blit(struct fb_info *info, void __user *p)
 /*
  * NOTE: The userspace issues blit operations in a sequence, the sequence
  * start with a operation marked START and ends in an operation marked
- * END. It is guranteed by the userspace that all the blit operations
+ * END. It is guaranteed by the userspace that all the blit operations
  * between START and END are only within the regions of areas designated
- * by the START and END operations and that the userspace doesnt modify
+ * by the START and END operations and that the userspace doesn't modify
  * those areas. Hence it would be enough to perform barrier/cache operations
  * only on the START and END operations.
  */
diff --git a/drivers/staging/octeon/cvmx-cmd-queue.h b/drivers/staging/octeon/cvmx-cmd-queue.h
index 59d221422293..614653b686a0 100644
--- a/drivers/staging/octeon/cvmx-cmd-queue.h
+++ b/drivers/staging/octeon/cvmx-cmd-queue.h
@@ -214,7 +214,7 @@ static inline int __cvmx_cmd_queue_get_index(cvmx_cmd_queue_id_t queue_id)
 	/*
 	 * Warning: This code currently only works with devices that
 	 * have 256 queues or less. Devices with more than 16 queues
-	 * are layed out in memory to allow cores quick access to
+	 * are laid out in memory to allow cores quick access to
 	 * every 16th queue. This reduces cache thrashing when you are
 	 * running 16 queues per port to support lockless operation.
 	 */
diff --git a/drivers/staging/octeon/cvmx-fpa.h b/drivers/staging/octeon/cvmx-fpa.h
index 50a8c91778fa..1f04f9658736 100644
--- a/drivers/staging/octeon/cvmx-fpa.h
+++ b/drivers/staging/octeon/cvmx-fpa.h
@@ -195,7 +195,7 @@ static inline void cvmx_fpa_async_alloc(uint64_t scr_addr, uint64_t pool)
 	cvmx_fpa_iobdma_data_t data;
 
 	/*
-	 * Hardware only uses 64 bit alligned locations, so convert
+	 * Hardware only uses 64 bit aligned locations, so convert
 	 * from byte address to 64-bit index
 	 */
 	data.s.scraddr = scr_addr >> 3;
diff --git a/drivers/staging/octeon/cvmx-helper-board.h b/drivers/staging/octeon/cvmx-helper-board.h
index 611a8e03c216..b465bec43553 100644
--- a/drivers/staging/octeon/cvmx-helper-board.h
+++ b/drivers/staging/octeon/cvmx-helper-board.h
@@ -81,7 +81,7 @@ extern int cvmx_helper_board_get_mii_address(int ipd_port);
  * @phy_addr:  The address of the PHY to program
  * @link_flags:
  *                  Flags to control autonegotiation.  Bit 0 is autonegotiation
- *                  enable/disable to maintain backware compatability.
+ *                  enable/disable to maintain backware compatibility.
  * @link_info: Link speed to program. If the speed is zero and autonegotiation
  *                  is enabled, all possible negotiation speeds are advertised.
  *
diff --git a/drivers/staging/octeon/cvmx-helper-util.c b/drivers/staging/octeon/cvmx-helper-util.c
index 41ef8a40bb03..131182bf5abb 100644
--- a/drivers/staging/octeon/cvmx-helper-util.c
+++ b/drivers/staging/octeon/cvmx-helper-util.c
@@ -362,7 +362,7 @@ int __cvmx_helper_setup_gmx(int interface, int num_ports)
 }
 
 /**
- * Returns the IPD/PKO port number for a port on teh given
+ * Returns the IPD/PKO port number for a port on the given
  * interface.
  *
  * @interface: Interface to use
diff --git a/drivers/staging/octeon/cvmx-helper.c b/drivers/staging/octeon/cvmx-helper.c
index 591506643d02..e9c5c836ceff 100644
--- a/drivers/staging/octeon/cvmx-helper.c
+++ b/drivers/staging/octeon/cvmx-helper.c
@@ -691,7 +691,7 @@ int __cvmx_helper_errata_fix_ipd_ptr_alignment(void)
 
 		if (!retry_cnt)
 			cvmx_dprintf("WARNING: FIX_IPD_PTR_ALIGNMENT "
-				     "get_work() timeout occured.\n");
+				     "get_work() timeout occurred.\n");
 
 		/* Free packet */
 		if (work)
diff --git a/drivers/staging/octeon/cvmx-mdio.h b/drivers/staging/octeon/cvmx-mdio.h
index f45dc49512f2..d88ab8d8e37d 100644
--- a/drivers/staging/octeon/cvmx-mdio.h
+++ b/drivers/staging/octeon/cvmx-mdio.h
@@ -254,7 +254,7 @@ typedef union {
 #define MDIO_CLAUSE_45_READ_INC 2
 #define MDIO_CLAUSE_45_READ     3
 
-/* MMD identifiers, mostly for accessing devices withing XENPAK modules. */
+/* MMD identifiers, mostly for accessing devices within XENPAK modules. */
 #define CVMX_MMD_DEVICE_PMA_PMD      1
 #define CVMX_MMD_DEVICE_WIS          2
 #define CVMX_MMD_DEVICE_PCS          3
diff --git a/drivers/staging/octeon/cvmx-pko.h b/drivers/staging/octeon/cvmx-pko.h
index f068c1982497..de3412aada5d 100644
--- a/drivers/staging/octeon/cvmx-pko.h
+++ b/drivers/staging/octeon/cvmx-pko.h
@@ -98,7 +98,7 @@ typedef enum {
 	/*
 	 * PKO doesn't do any locking. It is the responsibility of the
 	 * application to make sure that no other core is accessing
-	 * the same queue at the smae time
+	 * the same queue at the same time
 	 */
 	CVMX_PKO_LOCK_NONE = 0,
 	/*
@@ -324,7 +324,7 @@ static inline void cvmx_pko_doorbell(uint64_t port, uint64_t queue,
  * - CVMX_PKO_LOCK_NONE
  *      - PKO doesn't do any locking. It is the responsibility
  *          of the application to make sure that no other core
- *          is accessing the same queue at the smae time.
+ *          is accessing the same queue at the same time.
  * - CVMX_PKO_LOCK_ATOMIC_TAG
  *      - PKO performs an atomic tagswitch to insure exclusive
  *          access to the output queue. This will maintain
diff --git a/drivers/staging/octeon/cvmx-pow.h b/drivers/staging/octeon/cvmx-pow.h
index bf9e069a898c..999aefe3274c 100644
--- a/drivers/staging/octeon/cvmx-pow.h
+++ b/drivers/staging/octeon/cvmx-pow.h
@@ -1492,8 +1492,8 @@ static inline void cvmx_pow_tag_sw_full(cvmx_wqe_t *wqp, uint32_t tag,
 /**
  * Switch to a NULL tag, which ends any ordering or
  * synchronization provided by the POW for the current
- * work queue entry.  This operation completes immediatly,
- * so completetion should not be waited for.
+ * work queue entry.  This operation completes immediately,
+ * so completion should not be waited for.
  * This function does NOT wait for previous tag switches to complete,
  * so the caller must ensure that any previous tag switches have completed.
  */
@@ -1532,8 +1532,8 @@ static inline void cvmx_pow_tag_sw_null_nocheck(void)
 /**
  * Switch to a NULL tag, which ends any ordering or
  * synchronization provided by the POW for the current
- * work queue entry.  This operation completes immediatly,
- * so completetion should not be waited for.
+ * work queue entry.  This operation completes immediately,
+ * so completion should not be waited for.
  * This function waits for any pending tag switches to complete
  * before requesting the switch to NULL.
  */
@@ -1672,7 +1672,7 @@ static inline void cvmx_pow_set_priority(uint64_t core_num,
 
 /**
  * Performs a tag switch and then an immediate deschedule. This completes
- * immediatly, so completion must not be waited for.  This function does NOT
+ * immediately, so completion must not be waited for.  This function does NOT
  * update the wqe in DRAM to match arguments.
  *
  * This function does NOT wait for any prior tag switches to complete, so the
@@ -1758,7 +1758,7 @@ static inline void cvmx_pow_tag_sw_desched_nocheck(
 
 /**
  * Performs a tag switch and then an immediate deschedule. This completes
- * immediatly, so completion must not be waited for.  This function does NOT
+ * immediately, so completion must not be waited for.  This function does NOT
  * update the wqe in DRAM to match arguments.
  *
  * This function waits for any prior tag switches to complete, so the
diff --git a/drivers/staging/octeon/ethernet-util.h b/drivers/staging/octeon/ethernet-util.h
index 23467563fe57..c745a72a0594 100644
--- a/drivers/staging/octeon/ethernet-util.h
+++ b/drivers/staging/octeon/ethernet-util.h
@@ -55,7 +55,7 @@ static inline int INTERFACE(int ipd_port)
 		return 2;
 	else if (ipd_port < 40)	/* Interface 3 for loopback */
 		return 3;
-	else if (ipd_port == 40)	/* Non existant interface for POW0 */
+	else if (ipd_port == 40)	/* Non existent interface for POW0 */
 		return 4;
 	else
 		panic("Illegal ipd_port %d passed to INTERFACE\n", ipd_port);
diff --git a/drivers/staging/olpc_dcon/Kconfig b/drivers/staging/olpc_dcon/Kconfig
index f1082f50fdce..b05306766870 100644
--- a/drivers/staging/olpc_dcon/Kconfig
+++ b/drivers/staging/olpc_dcon/Kconfig
@@ -9,7 +9,7 @@ config FB_OLPC_DCON
 
 config FB_OLPC_DCON_1
 	bool "OLPC XO-1 DCON support"
-	depends on FB_OLPC_DCON
+	depends on FB_OLPC_DCON && GPIO_CS5535
 	default y
 	---help---
 	  Enable support for the DCON in XO-1 model laptops.  The kernel
diff --git a/drivers/staging/olpc_dcon/olpc_dcon_xo_1.c b/drivers/staging/olpc_dcon/olpc_dcon_xo_1.c
index b154be7a2fe6..b5d21f6497f9 100644
--- a/drivers/staging/olpc_dcon/olpc_dcon_xo_1.c
+++ b/drivers/staging/olpc_dcon/olpc_dcon_xo_1.c
@@ -80,7 +80,7 @@ static int dcon_init_xo_1(struct dcon_priv *dcon)
 	lob &= ~(1 << DCON_IRQ);
 	outb(lob, 0x4d0);
 
-	/* Register the interupt handler */
+	/* Register the interrupt handler */
 	if (request_irq(DCON_IRQ, &dcon_interrupt, 0, "DCON", dcon)) {
 		printk(KERN_ERR "olpc-dcon: failed to request DCON's irq\n");
 		goto err_req_irq;
diff --git a/drivers/staging/olpc_dcon/olpc_dcon_xo_1_5.c b/drivers/staging/olpc_dcon/olpc_dcon_xo_1_5.c
index e213b63f8116..7aa9b1a45bd6 100644
--- a/drivers/staging/olpc_dcon/olpc_dcon_xo_1_5.c
+++ b/drivers/staging/olpc_dcon/olpc_dcon_xo_1_5.c
@@ -7,6 +7,7 @@
  */
 
 #include <linux/acpi.h>
+#include <linux/delay.h>
 #include <linux/pci.h>
 #include <linux/gpio.h>
 #include <asm/olpc.h>
diff --git a/drivers/staging/pohmelfs/crypto.c b/drivers/staging/pohmelfs/crypto.c
index 6540864216c8..5cca24fcf6ca 100644
--- a/drivers/staging/pohmelfs/crypto.c
+++ b/drivers/staging/pohmelfs/crypto.c
@@ -745,7 +745,7 @@ static int pohmelfs_crypto_init_handshake(struct pohmelfs_sb *psb)
 
 	/*
 	 * At this point NETFS_CAPABILITIES response command
-	 * should setup superblock in a way, which is acceptible
+	 * should setup superblock in a way, which is acceptable
 	 * for both client and server, so if server refuses connection,
 	 * it will send error in transaction response.
 	 */
diff --git a/drivers/staging/quatech_usb2/quatech_usb2.c b/drivers/staging/quatech_usb2/quatech_usb2.c
index c45b09ed0d35..ca098cabc2bc 100644
--- a/drivers/staging/quatech_usb2/quatech_usb2.c
+++ b/drivers/staging/quatech_usb2/quatech_usb2.c
@@ -148,7 +148,7 @@ static struct usb_driver quausb2_usb_driver = {
  * value of the line status flags from the port
  * @shadowMSR: Last received state of the modem status register, holds
  * the value of the modem status received from the port
- * @rcv_flush: Flag indicating that a receive flush has occured on
+ * @rcv_flush: Flag indicating that a receive flush has occurred on
  * the hardware.
  * @xmit_flush: Flag indicating that a transmit flush has been processed by
  * the hardware.
@@ -156,7 +156,7 @@ static struct usb_driver quausb2_usb_driver = {
  * includes the size (excluding header) of URBs that have been submitted but
  * have not yet been sent to to the device, and bytes that have been sent out
  * of the port but not yet reported sent by the "xmit_empty" messages (which
- * indicate the number of bytes sent each time they are recieved, despite the
+ * indicate the number of bytes sent each time they are received, despite the
  * misleading name).
  * - Starts at zero when port is initialised.
  * - is incremented by the size of the data to be written (no headers)
@@ -649,7 +649,7 @@ static void qt2_close(struct usb_serial_port *port)
 	/* although the USB side is now empty, the UART itself may
 	 * still be pushing characters out over the line, so we have to
 	 * wait testing the actual line status until the lines change
-	 * indicating that the data is done transfering. */
+	 * indicating that the data is done transferring. */
 	/* FIXME: slow this polling down so it doesn't run the USB bus flat out
 	 * if it actually has to spend any time in this loop (which it normally
 	 * doesn't because the buffer is nearly empty) */
@@ -726,7 +726,7 @@ static int qt2_write(struct tty_struct *tty, struct usb_serial_port *port,
 		return 0;
 	} else if (port_extra->tx_pending_bytes >= QT2_FIFO_DEPTH) {
 		/* buffer is full (==). > should not occur, but would indicate
-		 * that an overflow had occured */
+		 * that an overflow had occurred */
 		dbg("%s(): port transmit buffer is full!", __func__);
 		/* schedule_work(&port->work); commented in vendor driver */
 		return 0;
@@ -823,7 +823,7 @@ static int qt2_write_room(struct tty_struct *tty)
 	 * reduce the free space count by the size of the dispatched write.
 	 * When a "transmit empty" message comes back up the USB read stream,
 	 * we decrement the count by the number of bytes reported sent, thus
-	 * keeping track of the difference between sent and recieved bytes.
+	 * keeping track of the difference between sent and received bytes.
 	 */
 
 	room = (QT2_FIFO_DEPTH - port_extra->tx_pending_bytes);
@@ -1795,7 +1795,7 @@ static void qt2_process_rx_char(struct usb_serial_port *port,
 	}
 }
 
-/** @brief Retreive the value of a register from the device
+/** @brief Retrieve the value of a register from the device
  *
  * Issues a GET_REGISTER vendor-spcific request over the USB control
  * pipe to obtain a value back from a specific register on a specific
diff --git a/drivers/staging/rt2860/chip/rtmp_phy.h b/drivers/staging/rt2860/chip/rtmp_phy.h
index 98454df30a22..a52221f1294e 100644
--- a/drivers/staging/rt2860/chip/rtmp_phy.h
+++ b/drivers/staging/rt2860/chip/rtmp_phy.h
@@ -467,7 +467,7 @@
 			DBGPRINT_ERR("BBP write R%d=0x%x fail. BusyCnt= %d.bPCIclkOff = %d. \n", _I, BbpCsr.word, BusyCnt, (_A)->bPCIclkOff);	\
 		}																	\
 	} else {							\
-		DBGPRINT_ERR("****** BBP_Write_Latch Buffer exceeds max boundry ****** \n");	\
+		DBGPRINT_ERR("****** BBP_Write_Latch Buffer exceeds max boundary ****** \n");	\
 	}																		\
 }
 #endif /* RTMP_MAC_PCI // */
diff --git a/drivers/staging/rt2860/common/ba_action.c b/drivers/staging/rt2860/common/ba_action.c
index 62f6f6be4acb..133bc1b87d2c 100644
--- a/drivers/staging/rt2860/common/ba_action.c
+++ b/drivers/staging/rt2860/common/ba_action.c
@@ -28,7 +28,7 @@
 #include "../rt_config.h"
 #include <linux/kernel.h>
 
-#define BA_ORI_INIT_SEQ		(pEntry->TxSeq[TID])	/*1                        // inital sequence number of BA session */
+#define BA_ORI_INIT_SEQ		(pEntry->TxSeq[TID])	/*1                        // initial sequence number of BA session */
 
 #define ORI_SESSION_MAX_RETRY	8
 #define ORI_BA_SESSION_TIMEOUT	(2000)	/* ms */
@@ -1487,7 +1487,7 @@ static void ba_enqueue_reordering_packet(struct rt_rtmp_adapter *pAd,
 
 		/*
 		 * flush all pending reordering mpdus
-		 * and receving mpdu to upper layer
+		 * and receiving mpdu to upper layer
 		 * make tcp/ip to take care reordering mechanism
 		 */
 		/*ba_refresh_reordering_mpdus(pAd, pBAEntry); */
diff --git a/drivers/staging/rt2860/common/cmm_aes.c b/drivers/staging/rt2860/common/cmm_aes.c
index a99879bada42..d70d229a6e53 100644
--- a/drivers/staging/rt2860/common/cmm_aes.c
+++ b/drivers/staging/rt2860/common/cmm_aes.c
@@ -858,7 +858,7 @@ static uint32 KT1[256];
 static uint32 KT2[256];
 static uint32 KT3[256];
 
-/* platform-independant	32-bit integer manipulation	macros */
+/* platform-independent	32-bit integer manipulation	macros */
 
 #define	GET_UINT32(n,b,i)						\
 {												\
diff --git a/drivers/staging/rt2860/common/cmm_cfg.c b/drivers/staging/rt2860/common/cmm_cfg.c
index 24f439378439..727f79929258 100644
--- a/drivers/staging/rt2860/common/cmm_cfg.c
+++ b/drivers/staging/rt2860/common/cmm_cfg.c
@@ -223,7 +223,7 @@ int RT_CfgSetWepKey(struct rt_rtmp_adapter *pAd,
         pAdapter	Pointer to our adapter
         keyString	WPA pre-shared key string
         pHashStr	String used for password hash function
-        hashStrLen	Lenght of the hash string
+        hashStrLen	Length of the hash string
         pPMKBuf		Output buffer of WPAPSK key
 
     Return:
diff --git a/drivers/staging/rt2860/common/cmm_data.c b/drivers/staging/rt2860/common/cmm_data.c
index f6c193cb84ee..33799e1449ae 100644
--- a/drivers/staging/rt2860/common/cmm_data.c
+++ b/drivers/staging/rt2860/common/cmm_data.c
@@ -337,7 +337,7 @@ int MlmeHardTransmitMgmtRing(struct rt_rtmp_adapter *pAd,
 
 	/* */
 	/* In WMM-UAPSD, mlme frame should be set psm as power saving but probe request frame */
-	/* Data-Null packets alse pass through MMRequest in RT2860, however, we hope control the psm bit to pass APSD */
+	/* Data-Null packets also pass through MMRequest in RT2860, however, we hope control the psm bit to pass APSD */
 /*      if ((pHeader_802_11->FC.Type != BTYPE_DATA) && (pHeader_802_11->FC.Type != BTYPE_CNTL)) */
 	{
 		if ((pHeader_802_11->FC.SubType == SUBTYPE_ACTION) ||
@@ -1933,7 +1933,7 @@ BOOLEAN RTMPCheckEtherType(struct rt_rtmp_adapter *pAd, void *pPacket)
 
 	if (TypeLen <= 1500) {	/* 802.3, 802.3 LLC */
 		/*
-		   DestMAC(6) + SrcMAC(6) + Lenght(2) +
+		   DestMAC(6) + SrcMAC(6) + Length(2) +
 		   DSAP(1) + SSAP(1) + Control(1) +
 		   if the DSAP = 0xAA, SSAP=0xAA, Contorl = 0x03, it has a 5-bytes SNAP header.
 		   => + SNAP (5, OriginationID(3) + etherType(2))
diff --git a/drivers/staging/rt2860/common/cmm_data_pci.c b/drivers/staging/rt2860/common/cmm_data_pci.c
index 7af59ff9e220..bef0bbd8cef7 100644
--- a/drivers/staging/rt2860/common/cmm_data_pci.c
+++ b/drivers/staging/rt2860/common/cmm_data_pci.c
@@ -438,13 +438,13 @@ int RTMPCheckRxError(struct rt_rtmp_adapter *pAd,
 	/* Add Rx size to channel load counter, we should ignore error counts */
 	pAd->StaCfg.CLBusyBytes += (pRxD->SDL0 + 14);
 
-	/* Drop ToDs promiscous frame, it is opened due to CCX 2 channel load statistics */
+	/* Drop ToDs promiscuous frame, it is opened due to CCX 2 channel load statistics */
 	if (pHeader != NULL) {
 		if (pHeader->FC.ToDs) {
 			return (NDIS_STATUS_FAILURE);
 		}
 	}
-	/* Drop not U2M frames, cant's drop here because we will drop beacon in this case */
+	/* Drop not U2M frames, can't's drop here because we will drop beacon in this case */
 	/* I am kind of doubting the U2M bit operation */
 	/* if (pRxD->U2M == 0) */
 	/*      return(NDIS_STATUS_FAILURE); */
@@ -939,7 +939,7 @@ int MlmeHardTransmitTxRing(struct rt_rtmp_adapter *pAd,
 	/* */
 	/* */
 	/* In WMM-UAPSD, mlme frame should be set psm as power saving but probe request frame */
-	/* Data-Null packets alse pass through MMRequest in RT2860, however, we hope control the psm bit to pass APSD */
+	/* Data-Null packets also pass through MMRequest in RT2860, however, we hope control the psm bit to pass APSD */
 	if (pHeader_802_11->FC.Type != BTYPE_DATA) {
 		if ((pHeader_802_11->FC.SubType == SUBTYPE_PROBE_REQ)
 		    || !(pAd->CommonCfg.bAPSDCapable
diff --git a/drivers/staging/rt2860/common/cmm_data_usb.c b/drivers/staging/rt2860/common/cmm_data_usb.c
index 7c56c2f51987..5637857ae9eb 100644
--- a/drivers/staging/rt2860/common/cmm_data_usb.c
+++ b/drivers/staging/rt2860/common/cmm_data_usb.c
@@ -702,7 +702,7 @@ Arguments:
 	*pRxPending			pending received packet flag
 
 Return Value:
-    the recieved packet
+    the received packet
 
 Note:
 ========================================================================
@@ -850,7 +850,7 @@ int RTMPCheckRxError(struct rt_rtmp_adapter *pAd,
 	/* Add Rx size to channel load counter, we should ignore error counts */
 	pAd->StaCfg.CLBusyBytes += (pRxWI->MPDUtotalByteCount + 14);
 
-	/* Drop ToDs promiscous frame, it is opened due to CCX 2 channel load statistics */
+	/* Drop ToDs promiscuous frame, it is opened due to CCX 2 channel load statistics */
 	if (pHeader->FC.ToDs) {
 		DBGPRINT_RAW(RT_DEBUG_ERROR, ("Err;FC.ToDs\n"));
 		return NDIS_STATUS_FAILURE;
@@ -860,7 +860,7 @@ int RTMPCheckRxError(struct rt_rtmp_adapter *pAd,
 		DBGPRINT_RAW(RT_DEBUG_ERROR, ("received packet too long\n"));
 		return NDIS_STATUS_FAILURE;
 	}
-	/* Drop not U2M frames, cant's drop here because we will drop beacon in this case */
+	/* Drop not U2M frames, can't's drop here because we will drop beacon in this case */
 	/* I am kind of doubting the U2M bit operation */
 	/* if (pRxD->U2M == 0) */
 	/*      return(NDIS_STATUS_FAILURE); */
diff --git a/drivers/staging/rt2860/common/cmm_mac_pci.c b/drivers/staging/rt2860/common/cmm_mac_pci.c
index 21eed2507e1c..d06f0a6dc379 100644
--- a/drivers/staging/rt2860/common/cmm_mac_pci.c
+++ b/drivers/staging/rt2860/common/cmm_mac_pci.c
@@ -1446,7 +1446,7 @@ BOOLEAN RT28xxPciAsicRadioOff(struct rt_rtmp_adapter *pAd,
 	   pAd->CheckDmaBusyCount = 0;
 	   }
 	 */
-/*KH Debug:My original codes have the follwoing codes, but currecnt codes do not have it. */
+/*KH Debug:My original codes have the following codes, but currecnt codes do not have it. */
 /* Disable for stability. If PCIE Link Control is modified for advance power save, re-covery this code segment. */
 	RTMP_IO_WRITE32(pAd, PBF_SYS_CTRL, 0x1280);
 /*OPSTATUS_SET_FLAG(pAd, fOP_STATUS_CLKSELECT_40MHZ); */
diff --git a/drivers/staging/rt2860/common/cmm_sanity.c b/drivers/staging/rt2860/common/cmm_sanity.c
index 6b003c903444..3bfb4ad00c1a 100644
--- a/drivers/staging/rt2860/common/cmm_sanity.c
+++ b/drivers/staging/rt2860/common/cmm_sanity.c
@@ -67,7 +67,7 @@ BOOLEAN MlmeAddBAReqSanity(struct rt_rtmp_adapter *pAd,
 
 	if ((MsgLen != sizeof(struct rt_mlme_addba_req))) {
 		DBGPRINT(RT_DEBUG_TRACE,
-			 ("MlmeAddBAReqSanity fail - message lenght not correct.\n"));
+			 ("MlmeAddBAReqSanity fail - message length not correct.\n"));
 		return FALSE;
 	}
 
@@ -104,7 +104,7 @@ BOOLEAN MlmeDelBAReqSanity(struct rt_rtmp_adapter *pAd, void * Msg, unsigned lon
 
 	if ((MsgLen != sizeof(struct rt_mlme_delba_req))) {
 		DBGPRINT(RT_DEBUG_ERROR,
-			 ("MlmeDelBAReqSanity fail - message lenght not correct.\n"));
+			 ("MlmeDelBAReqSanity fail - message length not correct.\n"));
 		return FALSE;
 	}
 
diff --git a/drivers/staging/rt2860/common/cmm_sync.c b/drivers/staging/rt2860/common/cmm_sync.c
index f84194da47bc..aefe1b774650 100644
--- a/drivers/staging/rt2860/common/cmm_sync.c
+++ b/drivers/staging/rt2860/common/cmm_sync.c
@@ -694,7 +694,7 @@ void ScanNextChannel(struct rt_rtmp_adapter *pAd)
 			MiniportMMRequest(pAd, 0, pOutBuffer, FrameLen);
 			MlmeFreeMemory(pAd, pOutBuffer);
 		}
-		/* For SCAN_CISCO_PASSIVE, do nothing and silently wait for beacon or other probe reponse */
+		/* For SCAN_CISCO_PASSIVE, do nothing and silently wait for beacon or other probe response */
 
 		pAd->Mlme.SyncMachine.CurrState = SCAN_LISTEN;
 	}
diff --git a/drivers/staging/rt2860/common/cmm_wpa.c b/drivers/staging/rt2860/common/cmm_wpa.c
index 0040f45b629b..616ebec50c61 100644
--- a/drivers/staging/rt2860/common/cmm_wpa.c
+++ b/drivers/staging/rt2860/common/cmm_wpa.c
@@ -1222,7 +1222,7 @@ void PeerGroupMsg2Action(struct rt_rtmp_adapter *pAd,
 
 	Note:
 		All these constants are defined in wpa.h
-		For supplicant, there is only EAPOL Key message avaliable
+		For supplicant, there is only EAPOL Key message available
 
 	========================================================================
 */
@@ -1267,7 +1267,7 @@ BOOLEAN WpaMsgTypeSubst(u8 EAPType, int * MsgType)
 		int		prefix_len	-	the length of the label
 		u8	*data		-	a specific data with variable length
 		int		data_len	-	the length of a specific data
-		int		len			-	the output lenght
+		int		len			-	the output length
 
 	Return Value:
 		u8	*output		-	the calculated result
diff --git a/drivers/staging/rt2860/common/mlme.c b/drivers/staging/rt2860/common/mlme.c
index d9c3fd5c2166..e48eac0f3a29 100644
--- a/drivers/staging/rt2860/common/mlme.c
+++ b/drivers/staging/rt2860/common/mlme.c
@@ -632,7 +632,7 @@ void MlmeHalt(struct rt_rtmp_adapter *pAd)
 			pChipOps->AsicHaltAction(pAd);
 	}
 
-	RTMPusecDelay(5000);	/*  5 msec to gurantee Ant Diversity timer canceled */
+	RTMPusecDelay(5000);	/*  5 msec to guarantee Ant Diversity timer canceled */
 
 	MlmeQueueDestroy(&pAd->Mlme.Queue);
 	NdisFreeSpinLock(&pAd->Mlme.TaskLock);
@@ -1107,14 +1107,14 @@ void MlmeSelectTxRateTable(struct rt_rtmp_adapter *pAd,
 					*pInitTxRateIdx =
 					    RateSwitchTable11N1S[1];
 					DBGPRINT_RAW(RT_DEBUG_ERROR,
-						     ("DRS: unkown mode,default use 11N 1S AP \n"));
+						     ("DRS: unknown mode,default use 11N 1S AP \n"));
 				} else {
 					*ppTable = RateSwitchTable11N2S;
 					*pTableSize = RateSwitchTable11N2S[0];
 					*pInitTxRateIdx =
 					    RateSwitchTable11N2S[1];
 					DBGPRINT_RAW(RT_DEBUG_ERROR,
-						     ("DRS: unkown mode,default use 11N 2S AP \n"));
+						     ("DRS: unknown mode,default use 11N 2S AP \n"));
 				}
 			} else {
 				if (pAd->CommonCfg.TxStream == 1) {
@@ -1123,7 +1123,7 @@ void MlmeSelectTxRateTable(struct rt_rtmp_adapter *pAd,
 					*pInitTxRateIdx =
 					    RateSwitchTable11N1S[1];
 					DBGPRINT_RAW(RT_DEBUG_ERROR,
-						     ("DRS: unkown mode,default use 11N 1S AP \n"));
+						     ("DRS: unknown mode,default use 11N 1S AP \n"));
 				} else {
 					*ppTable = RateSwitchTable11N2SForABand;
 					*pTableSize =
@@ -1131,11 +1131,11 @@ void MlmeSelectTxRateTable(struct rt_rtmp_adapter *pAd,
 					*pInitTxRateIdx =
 					    RateSwitchTable11N2SForABand[1];
 					DBGPRINT_RAW(RT_DEBUG_ERROR,
-						     ("DRS: unkown mode,default use 11N 2S AP \n"));
+						     ("DRS: unknown mode,default use 11N 2S AP \n"));
 				}
 			}
 			DBGPRINT_RAW(RT_DEBUG_ERROR,
-				     ("DRS: unkown mode (SupRateLen=%d, ExtRateLen=%d, MCSSet[0]=0x%x, MCSSet[1]=0x%x)\n",
+				     ("DRS: unknown mode (SupRateLen=%d, ExtRateLen=%d, MCSSet[0]=0x%x, MCSSet[1]=0x%x)\n",
 				      pAd->StaActive.SupRateLen,
 				      pAd->StaActive.ExtRateLen,
 				      pAd->StaActive.SupportedPhyInfo.MCSSet[0],
@@ -1368,7 +1368,7 @@ void STAMlmePeriodicExec(struct rt_rtmp_adapter *pAd)
 					if ((pAd->StaCfg.LastScanTime +
 					     10 * OS_HZ) < pAd->Mlme.Now32) {
 						DBGPRINT(RT_DEBUG_TRACE,
-							 ("MMCHK - Roaming, No eligable entry, try new scan!\n"));
+							 ("MMCHK - Roaming, No eligible entry, try new scan!\n"));
 						pAd->StaCfg.ScanCnt = 2;
 						pAd->StaCfg.LastScanTime =
 						    pAd->Mlme.Now32;
@@ -2828,7 +2828,7 @@ void UpdateBasicRateBitmap(struct rt_rtmp_adapter *pAdapter)
 
 /* IRQL = PASSIVE_LEVEL */
 /* IRQL = DISPATCH_LEVEL */
-/* bLinkUp is to identify the inital link speed. */
+/* bLinkUp is to identify the initial link speed. */
 /* TRUE indicates the rate update at linkup, we should not try to set the rate at 54Mbps. */
 void MlmeUpdateTxRates(struct rt_rtmp_adapter *pAd, IN BOOLEAN bLinkUp, u8 apidx)
 {
diff --git a/drivers/staging/rt2860/common/rtmp_init.c b/drivers/staging/rt2860/common/rtmp_init.c
index d359a14f5d4d..5fa193eac0d3 100644
--- a/drivers/staging/rt2860/common/rtmp_init.c
+++ b/drivers/staging/rt2860/common/rtmp_init.c
@@ -2037,7 +2037,7 @@ void NICUpdateFifoStaCounters(struct rt_rtmp_adapter *pAd)
 
 			pEntry->FIFOCount = 0;
 			pEntry->OneSecTxNoRetryOkCount++;
-			/* update NoDataIdleCount when sucessful send packet to STA. */
+			/* update NoDataIdleCount when successful send packet to STA. */
 			pEntry->NoDataIdleCount = 0;
 			pEntry->ContinueTxFailCnt = 0;
 		}
@@ -2516,7 +2516,7 @@ void UserCfgInit(struct rt_rtmp_adapter *pAd)
 	/*pAd->TurnAggrBulkInCount = 0; */
 	pAd->bUsbTxBulkAggre = 0;
 
-	/* init as unsed value to ensure driver will set to MCU once. */
+	/* init as unused value to ensure driver will set to MCU once. */
 	pAd->LedIndicatorStrength = 0xFF;
 
 	pAd->CommonCfg.MaxPktOneTxBulk = 2;
@@ -3076,11 +3076,11 @@ void RTMPSetLED(struct rt_rtmp_adapter *pAd, u8 Status)
 	========================================================================
 
 	Routine Description:
-		Set LED Signal Stregth
+		Set LED Signal Strength
 
 	Arguments:
 		pAd						Pointer to our adapter
-		Dbm						Signal Stregth
+		Dbm						Signal Strength
 
 	Return Value:
 		None
@@ -3090,7 +3090,7 @@ void RTMPSetLED(struct rt_rtmp_adapter *pAd, u8 Status)
 	Note:
 		Can be run on any IRQL level.
 
-		According to Microsoft Zero Config Wireless Signal Stregth definition as belows.
+		According to Microsoft Zero Config Wireless Signal Strength definition as belows.
 		<= -90  No Signal
 		<= -81  Very Low
 		<= -71  Low
@@ -3118,7 +3118,7 @@ void RTMPSetSignalLED(struct rt_rtmp_adapter *pAd, IN NDIS_802_11_RSSI Dbm)
 			nLed = 31;
 
 		/* */
-		/* Update Signal Stregth to firmware if changed. */
+		/* Update Signal Strength to firmware if changed. */
 		/* */
 		if (pAd->LedIndicatorStrength != nLed) {
 			AsicSendCommandToMcu(pAd, 0x51, 0xff, nLed,
@@ -3166,7 +3166,7 @@ void RTMPEnableRxTx(struct rt_rtmp_adapter *pAd)
 		if (pAd->CommonCfg.PSPXlink)
 			rx_filter_flag = PSPXLINK;
 		else
-			rx_filter_flag = STANORMAL;	/* Staion not drop control frame will fail WiFi Certification. */
+			rx_filter_flag = STANORMAL;	/* Station not drop control frame will fail WiFi Certification. */
 		RTMP_IO_WRITE32(pAd, RX_FILTR_CFG, rx_filter_flag);
 	}
 
diff --git a/drivers/staging/rt2860/common/spectrum.c b/drivers/staging/rt2860/common/spectrum.c
index c0d2f428069c..ceb622df12d7 100644
--- a/drivers/staging/rt2860/common/spectrum.c
+++ b/drivers/staging/rt2860/common/spectrum.c
@@ -1058,8 +1058,8 @@ static void InsertMeasureReqIE(struct rt_rtmp_adapter *pAd,
 		3. Measure Token.
 		4. Measure Request Mode.
 		5. Measure Request Type.
-		6. Length of Report Infomation
-		7. Pointer of Report Infomation Buffer.
+		6. Length of Report Information
+		7. Pointer of Report Information Buffer.
 
 	Return	: None.
 	==========================================================================
@@ -1400,7 +1400,7 @@ static void StartDFSProcedure(struct rt_rtmp_adapter *pAd,
 	Parametrs:
 		1. MLME message containing the received frame
 		2. message length.
-		3. Channel switch announcement infomation buffer.
+		3. Channel switch announcement information buffer.
 
 	Return	: None.
 	==========================================================================
@@ -1465,7 +1465,7 @@ static BOOLEAN PeerChSwAnnSanity(struct rt_rtmp_adapter *pAd,
 	Parametrs:
 		1. MLME message containing the received frame
 		2. message length.
-		3. Measurement request infomation buffer.
+		3. Measurement request information buffer.
 
 	Return	: None.
 	==========================================================================
@@ -1538,8 +1538,8 @@ static BOOLEAN PeerMeasureReqSanity(struct rt_rtmp_adapter *pAd,
 	Parametrs:
 		1. MLME message containing the received frame
 		2. message length.
-		3. Measurement report infomation buffer.
-		4. basic report infomation buffer.
+		3. Measurement report information buffer.
+		4. basic report information buffer.
 
 	Return	: None.
 	==========================================================================
diff --git a/drivers/staging/rt2860/mlme.h b/drivers/staging/rt2860/mlme.h
index cd1ee3d7a91d..a285851692ee 100644
--- a/drivers/staging/rt2860/mlme.h
+++ b/drivers/staging/rt2860/mlme.h
@@ -374,7 +374,7 @@ struct PACKED rt_sec_cha_offset_ie {
 struct rt_ht_phy_info {
 	BOOLEAN bHtEnable;	/* If we should use ht rate. */
 	BOOLEAN bPreNHt;	/* If we should use ht rate. */
-	/*Substract from HT Capability IE */
+	/*Subtract from HT Capability IE */
 	u8 MCSSet[16];
 };
 
@@ -392,7 +392,7 @@ struct rt_ht_capability {
 	u16 AmsduSize:1;	/* Max receiving A-MSDU size */
 	u16 rsv:5;
 
-	/*Substract from Addiont HT INFO IE */
+	/*Subtract from Addiont HT INFO IE */
 	u8 MaxRAmpduFactor:2;
 	u8 MpduDensity:3;
 	u8 ExtChanOffset:2;	/* Please note the difference with following     u8   NewExtChannelOffset; from 802.11n */
@@ -410,7 +410,7 @@ struct rt_ht_capability {
 	u8 BSSCoexist2040;
 };
 
-/*   field in Addtional HT Information IE . */
+/*   field in Additional HT Information IE . */
 struct PACKED rt_add_htinfo {
 	u8 ExtChanOffset:2;
 	u8 RecomWidth:1;
@@ -857,7 +857,7 @@ struct rt_state_machine {
 };
 
 /* MLME AUX data structure that holds temporarliy settings during a connection attempt. */
-/* Once this attemp succeeds, all settings will be copy to pAd->StaActive. */
+/* Once this attempt succeeds, all settings will be copy to pAd->StaActive. */
 /* A connection attempt (user set OID, roaming, CCX fast roaming,..) consists of */
 /* several steps (JOIN, AUTH, ASSOC or REASSOC) and may fail at any step. We purposely */
 /* separate this under-trial settings away from pAd->StaActive so that once */
diff --git a/drivers/staging/rt2860/rt_linux.c b/drivers/staging/rt2860/rt_linux.c
index e5b042712430..1583347fcd52 100644
--- a/drivers/staging/rt2860/rt_linux.c
+++ b/drivers/staging/rt2860/rt_linux.c
@@ -283,7 +283,7 @@ BOOLEAN OS_Need_Clone_Packet(void)
 	Arguments:
 		pAd 	Pointer to our adapter
 		pInsAMSDUHdr	EWC A-MSDU format has extra 14-bytes header. if TRUE, insert this 14-byte hdr in front of MSDU.
-		*pSrcTotalLen			return total packet length. This lenght is calculated with 802.3 format packet.
+		*pSrcTotalLen			return total packet length. This length is calculated with 802.3 format packet.
 
 	Return Value:
 		NDIS_STATUS_SUCCESS
diff --git a/drivers/staging/rt2860/rt_pci_rbus.c b/drivers/staging/rt2860/rt_pci_rbus.c
index e5fb67cd9a68..f80ab4e6a0ac 100644
--- a/drivers/staging/rt2860/rt_pci_rbus.c
+++ b/drivers/staging/rt2860/rt_pci_rbus.c
@@ -619,7 +619,7 @@ IRQ_HANDLE_TYPE rt2860_interrupt(int irq, void *dev_instance)
 	   Or kernel will panic after ifconfig ra0 down sometimes */
 
 	/* */
-	/* Inital the Interrupt source. */
+	/* Initial the Interrupt source. */
 	/* */
 	IntSource.word = 0x00000000L;
 /*      McuIntSource.word = 0x00000000L; */
diff --git a/drivers/staging/rt2860/rtmp.h b/drivers/staging/rt2860/rtmp.h
index d16b06a6e2ac..3c31340c946a 100644
--- a/drivers/staging/rt2860/rtmp.h
+++ b/drivers/staging/rt2860/rtmp.h
@@ -756,7 +756,7 @@ struct rt_tkip_key_info {
 /* */
 struct rt_private {
 	u32 SystemResetCnt;	/* System reset counter */
-	u32 TxRingFullCnt;	/* Tx ring full occurrance number */
+	u32 TxRingFullCnt;	/* Tx ring full occurrence number */
 	u32 PhyRxErrCnt;	/* PHY Rx error count, for debug purpose, might move to global counter */
 	/* Variables for WEP encryption / decryption in rtmp_wep.c */
 	u32 FCSCRC32;
@@ -925,7 +925,7 @@ struct rt_mlme {
   **************************************************************************/
 struct reordering_mpdu {
 	struct reordering_mpdu *next;
-	void *pPacket;	/* coverted to 802.3 frame */
+	void *pPacket;	/* converted to 802.3 frame */
 	int Sequence;		/* sequence number of MPDU */
 	BOOLEAN bAMSDU;
 };
diff --git a/drivers/staging/rt2860/sta_ioctl.c b/drivers/staging/rt2860/sta_ioctl.c
index 5717e12a9544..49b1013e7a03 100644
--- a/drivers/staging/rt2860/sta_ioctl.c
+++ b/drivers/staging/rt2860/sta_ioctl.c
@@ -2460,7 +2460,7 @@ int rt28xx_sta_ioctl(IN struct net_device *net_dev,
 		}
 	}
 
-	{			/* determine this ioctl command is comming from which interface. */
+	{			/* determine this ioctl command is coming from which interface. */
 		pObj->ioctl_if_type = INT_MAIN;
 		pObj->ioctl_if = MAIN_MBSSID;
 	}
diff --git a/drivers/staging/rt2870/common/rtusb_bulk.c b/drivers/staging/rt2870/common/rtusb_bulk.c
index d2746f8732e6..679b802d2169 100644
--- a/drivers/staging/rt2870/common/rtusb_bulk.c
+++ b/drivers/staging/rt2870/common/rtusb_bulk.c
@@ -298,7 +298,7 @@ void RTUSBBulkOutDataPacket(struct rt_rtmp_adapter *pAd,
 				/*|| ( (ThisBulkSize != 0)  && (pTxWI->AMPDU == 0)) */
 				) {
 				/* For USB 1.1 or peer which didn't support AMPDU, limit the BulkOut size. */
-				/* For performence in b/g mode, now just check for USB 1.1 and didn't care about the APMDU or not! 2008/06/04. */
+				/* For performance in b/g mode, now just check for USB 1.1 and didn't care about the APMDU or not! 2008/06/04. */
 				pHTTXContext->ENextBulkOutPosition =
 				    TmpBulkEndPos;
 				break;
@@ -311,7 +311,7 @@ void RTUSBBulkOutDataPacket(struct rt_rtmp_adapter *pAd,
 				    TmpBulkEndPos;
 				break;
 			} else if (((pAd->BulkOutMaxPacketSize < 512) && ((ThisBulkSize & 0xfffff800) != 0)) /*|| ( (ThisBulkSize != 0)  && (pTxWI->AMPDU == 0)) */) {	/* For USB 1.1 or peer which didn't support AMPDU, limit the BulkOut size. */
-				/* For performence in b/g mode, now just check for USB 1.1 and didn't care about the APMDU or not! 2008/06/04. */
+				/* For performance in b/g mode, now just check for USB 1.1 and didn't care about the APMDU or not! 2008/06/04. */
 				pHTTXContext->ENextBulkOutPosition =
 				    TmpBulkEndPos;
 				break;
@@ -1016,7 +1016,7 @@ void RTUSBKickBulkOut(struct rt_rtmp_adapter *pAd)
 				RTUSBBulkOutNullFrame(pAd);
 			}
 		}
-		/* 8. No data avaliable */
+		/* 8. No data available */
 		else
 			;
 	}
diff --git a/drivers/staging/rt2870/common/rtusb_data.c b/drivers/staging/rt2870/common/rtusb_data.c
index 69368862217c..5b72bcdaa78f 100644
--- a/drivers/staging/rt2870/common/rtusb_data.c
+++ b/drivers/staging/rt2870/common/rtusb_data.c
@@ -71,7 +71,7 @@ void REPORT_AMSDU_FRAMES_TO_LLC(struct rt_rtmp_adapter *pAd,
 
 	Routine	Description:
 		This subroutine will scan through releative ring descriptor to find
-		out avaliable free ring descriptor and compare with request size.
+		out available free ring descriptor and compare with request size.
 
 	Arguments:
 		pAd	Pointer	to our adapter
diff --git a/drivers/staging/rtl8187se/Kconfig b/drivers/staging/rtl8187se/Kconfig
index 1b3103fbf29c..3162aabbeb07 100644
--- a/drivers/staging/rtl8187se/Kconfig
+++ b/drivers/staging/rtl8187se/Kconfig
@@ -1,6 +1,7 @@
 config R8187SE
 	tristate "RealTek RTL8187SE Wireless LAN NIC driver"
 	depends on PCI && WLAN
+	depends on m
 	select WIRELESS_EXT
 	select WEXT_PRIV
 	select EEPROM_93CX6
diff --git a/drivers/staging/rtl8187se/ieee80211/ieee80211.h b/drivers/staging/rtl8187se/ieee80211/ieee80211.h
index dc608c70deb1..16aa6a8952fd 100644
--- a/drivers/staging/rtl8187se/ieee80211/ieee80211.h
+++ b/drivers/staging/rtl8187se/ieee80211/ieee80211.h
@@ -1099,7 +1099,7 @@ struct ieee80211_device {
 	 * not set. As some cards may have different HW queues that
 	 * one might want to use for data and management frames
 	 * the option to have two callbacks might be useful.
-	 * This fucntion can't sleep.
+	 * This function can't sleep.
 	 */
 	int (*softmac_hard_start_xmit)(struct sk_buff *skb,
 			       struct net_device *dev);
@@ -1138,9 +1138,9 @@ struct ieee80211_device {
 	 * it is called in a work_queue when swithcing to ad-hoc mode
 	 * or in behalf of iwlist scan when the card is associated
 	 * and root user ask for a scan.
-	 * the fucntion stop_scan should stop both the syncro and
+	 * the function stop_scan should stop both the syncro and
 	 * background scanning and can sleep.
-	 * The fucntion start_scan should initiate the background
+	 * The function start_scan should initiate the background
 	 * scanning and can't sleep.
 	 */
 	void (*scan_syncro)(struct net_device *dev);
diff --git a/drivers/staging/rtl8187se/ieee80211/ieee80211_softmac.c b/drivers/staging/rtl8187se/ieee80211/ieee80211_softmac.c
index 771e0196842e..736a1404f287 100644
--- a/drivers/staging/rtl8187se/ieee80211/ieee80211_softmac.c
+++ b/drivers/staging/rtl8187se/ieee80211/ieee80211_softmac.c
@@ -1954,7 +1954,7 @@ associate_complete:
 
 
 
-/* following are for a simplier TX queue management.
+/* following are for a simpler TX queue management.
  * Instead of using netif_[stop/wake]_queue the driver
  * will uses these two function (plus a reset one), that
  * will internally uses the kernel netif_* and takes
diff --git a/drivers/staging/rtl8187se/r8180_core.c b/drivers/staging/rtl8187se/r8180_core.c
index 70ab0084e5f5..2155a771c339 100644
--- a/drivers/staging/rtl8187se/r8180_core.c
+++ b/drivers/staging/rtl8187se/r8180_core.c
@@ -1591,7 +1591,7 @@ void rtl8180_rx(struct net_device *dev)
 		priv->RSSI = RSSI;
 		/* SQ translation formula is provided by SD3 DZ. 2006.06.27 */
 		if (quality >= 127)
-			quality = 1; /*0; */ /* 0 will cause epc to show signal zero , walk aroud now; */
+			quality = 1; /*0; */ /* 0 will cause epc to show signal zero , walk around now; */
 		else if (quality < 27)
 			quality = 100;
 		else
@@ -3883,7 +3883,7 @@ void rtl8180_tx_isr(struct net_device *dev, int pri, short error)
 	 * If the packet previous of the nic pointer has been
 	 * processed this doesn't matter: it will be checked
 	 * here at the next round. Anyway if no more packet are
-	 * TXed no memory leak occour at all.
+	 * TXed no memory leak occur at all.
 	 */
 
 	switch (pri) {
diff --git a/drivers/staging/rtl8187se/r8180_dm.c b/drivers/staging/rtl8187se/r8180_dm.c
index fc4907839c58..261085d4b74a 100644
--- a/drivers/staging/rtl8187se/r8180_dm.c
+++ b/drivers/staging/rtl8187se/r8180_dm.c
@@ -123,7 +123,7 @@ DoTxHighPower(
 //
 //	Description:
 //		Callback function of UpdateTxPowerWorkItem.
-//		Because of some event happend, e.g. CCX TPC, High Power Mechanism,
+//		Because of some event happened, e.g. CCX TPC, High Power Mechanism,
 //		We update Tx power of current channel again.
 //
 void rtl8180_tx_pw_wq (struct work_struct *work)
@@ -984,7 +984,7 @@ StaRateAdaptive87SE(
 		{
 			priv->TryupingCount = 0;
 			//
-			// When transfering from CCK to OFDM, DIG is an important issue.
+			// When transferring from CCK to OFDM, DIG is an important issue.
 			//
 			if(priv->CurrentOperaRate == 22)
 				bUpdateInitialGain = true;
diff --git a/drivers/staging/rtl8187se/r8180_rtl8225z2.c b/drivers/staging/rtl8187se/r8180_rtl8225z2.c
index 2a2afd51cf42..3f09f76080af 100644
--- a/drivers/staging/rtl8187se/r8180_rtl8225z2.c
+++ b/drivers/staging/rtl8187se/r8180_rtl8225z2.c
@@ -378,7 +378,7 @@ static u32 read_rtl8225(struct net_device *dev, u8 adr)
 	mask = (low2high) ? 0x01 : (((u32)0x01) << (12-1));
 
 	/*
-	 * We must set data pin to HW controled, otherwise RF can't driver it
+	 * We must set data pin to HW controlled, otherwise RF can't driver it
 	 * and value RF register won't be able to read back properly.
 	 */
 	write_nic_word(dev, RFPinsEnable, (oval2 & (~0x01)));
diff --git a/drivers/staging/rtl8187se/r8185b_init.c b/drivers/staging/rtl8187se/r8185b_init.c
index 3bdf9b31cc4e..4b0b830f9ab6 100644
--- a/drivers/staging/rtl8187se/r8185b_init.c
+++ b/drivers/staging/rtl8187se/r8185b_init.c
@@ -1273,7 +1273,7 @@ MgntDisconnectIBSS(
 	/*
 		Stop Beacon.
 
-		Vista add a Adhoc profile, HW radio off untill OID_DOT11_RESET_REQUEST
+		Vista add a Adhoc profile, HW radio off until OID_DOT11_RESET_REQUEST
 		Driver would set MSR=NO_LINK, then HW Radio ON, MgntQueue Stuck.
 		Because Bcn DMA isn't complete, mgnt queue would stuck until Bcn packet send.
 
diff --git a/drivers/staging/rtl8192e/Kconfig b/drivers/staging/rtl8192e/Kconfig
index 2e64b239e241..750c347bfbe1 100644
--- a/drivers/staging/rtl8192e/Kconfig
+++ b/drivers/staging/rtl8192e/Kconfig
@@ -1,6 +1,7 @@
 config RTL8192E
 	tristate "RealTek RTL8192E Wireless LAN NIC driver"
 	depends on PCI && WLAN
+	depends on m
 	select WIRELESS_EXT
 	select WEXT_PRIV
 	select CRYPTO
diff --git a/drivers/staging/rtl8192e/ieee80211/ieee80211.h b/drivers/staging/rtl8192e/ieee80211/ieee80211.h
index 3ca388152616..dbe21ab0dbf7 100644
--- a/drivers/staging/rtl8192e/ieee80211/ieee80211.h
+++ b/drivers/staging/rtl8192e/ieee80211/ieee80211.h
@@ -1967,7 +1967,7 @@ struct ieee80211_device {
         u16 prev_seq_ctl;       /* used to drop duplicate frames */
 
 	/* map of allowed channels. 0 is dummy */
-	// FIXME: remeber to default to a basic channel plan depending of the PHY type
+	// FIXME: remember to default to a basic channel plan depending of the PHY type
 #ifdef ENABLE_DOT11D
 	void* pDot11dInfo;
 	bool bGlobalDomain;
@@ -2121,7 +2121,7 @@ struct ieee80211_device {
 	 * not set. As some cards may have different HW queues that
 	 * one might want to use for data and management frames
 	 * the option to have two callbacks might be useful.
-	 * This fucntion can't sleep.
+	 * This function can't sleep.
 	 */
 	int (*softmac_hard_start_xmit)(struct sk_buff *skb,
 			       struct ieee80211_device *ieee80211);
@@ -2160,9 +2160,9 @@ struct ieee80211_device {
 	 * it is called in a work_queue when swithcing to ad-hoc mode
 	 * or in behalf of iwlist scan when the card is associated
 	 * and root user ask for a scan.
-	 * the fucntion stop_scan should stop both the syncro and
+	 * the function stop_scan should stop both the syncro and
 	 * background scanning and can sleep.
-	 * The fucntion start_scan should initiate the background
+	 * The function start_scan should initiate the background
 	 * scanning and can't sleep.
 	 */
 	void (*scan_syncro)(struct ieee80211_device *ieee80211);
diff --git a/drivers/staging/rtl8192e/ieee80211/ieee80211_rx.c b/drivers/staging/rtl8192e/ieee80211/ieee80211_rx.c
index add015ebba1c..ed5a38023094 100644
--- a/drivers/staging/rtl8192e/ieee80211/ieee80211_rx.c
+++ b/drivers/staging/rtl8192e/ieee80211/ieee80211_rx.c
@@ -1426,7 +1426,7 @@ int ieee80211_rtl_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
 static u8 qos_oui[QOS_OUI_LEN] = { 0x00, 0x50, 0xF2 };
 
 /*
-* Make ther structure we read from the beacon packet has
+* Make the structure we read from the beacon packet to have
 * the right values
 */
 static int ieee80211_verify_qos_info(struct ieee80211_qos_information_element
diff --git a/drivers/staging/rtl8192e/ieee80211/ieee80211_softmac.c b/drivers/staging/rtl8192e/ieee80211/ieee80211_softmac.c
index f6922d40a88a..7d4cba3a7c12 100644
--- a/drivers/staging/rtl8192e/ieee80211/ieee80211_softmac.c
+++ b/drivers/staging/rtl8192e/ieee80211/ieee80211_softmac.c
@@ -2023,7 +2023,7 @@ ieee80211_rx_frame_softmac(struct ieee80211_device *ieee, struct sk_buff *skb,
 							return 1;
 						}
 						else
-						{	//filling the PeerHTCap. //maybe not neccesary as we can get its info from current_network.
+						{	//filling the PeerHTCap. //maybe not necessary as we can get its info from current_network.
 							memcpy(ieee->pHTInfo->PeerHTCapBuf, network->bssht.bdHTCapBuf, network->bssht.bdHTCapLen);
 							memcpy(ieee->pHTInfo->PeerHTInfoBuf, network->bssht.bdHTInfoBuf, network->bssht.bdHTInfoLen);
 						}
@@ -2163,7 +2163,7 @@ ieee80211_rx_frame_softmac(struct ieee80211_device *ieee, struct sk_buff *skb,
 	return 0;
 }
 
-/* following are for a simplier TX queue management.
+/* following are for a simpler TX queue management.
  * Instead of using netif_[stop/wake]_queue the driver
  * will uses these two function (plus a reset one), that
  * will internally uses the kernel netif_* and takes
diff --git a/drivers/staging/rtl8192e/ieee80211/rtl819x_HT.h b/drivers/staging/rtl8192e/ieee80211/rtl819x_HT.h
index f968817d073c..56a120cf6291 100644
--- a/drivers/staging/rtl8192e/ieee80211/rtl819x_HT.h
+++ b/drivers/staging/rtl8192e/ieee80211/rtl819x_HT.h
@@ -64,7 +64,7 @@ typedef enum _HT_CHANNEL_WIDTH{
 }HT_CHANNEL_WIDTH, *PHT_CHANNEL_WIDTH;
 
 //
-// Represent Extention Channel Offset in HT Capabilities
+// Represent Extension Channel Offset in HT Capabilities
 // This is available only in 40Mhz mode.
 //
 typedef enum _HT_EXTCHNL_OFFSET{
diff --git a/drivers/staging/rtl8192e/ieee80211/rtl819x_HTProc.c b/drivers/staging/rtl8192e/ieee80211/rtl819x_HTProc.c
index a2a4fe9dd9da..f7a9da3ec829 100644
--- a/drivers/staging/rtl8192e/ieee80211/rtl819x_HTProc.c
+++ b/drivers/staging/rtl8192e/ieee80211/rtl819x_HTProc.c
@@ -459,7 +459,7 @@ u8 HTIOTActIsForcedCTS2Self(struct ieee80211_device *ieee, struct ieee80211_netw
 /**
 * Function:	HTIOTActIsDisableMCS15
 *
-* Overview:	Check whether driver should declare capability of receving MCS15
+* Overview:	Check whether driver should declare capability of receiving MCS15
 *
 * Input:
 *			PADAPTER		Adapter,
@@ -496,7 +496,7 @@ bool HTIOTActIsDisableMCS15(struct ieee80211_device* ieee)
 /**
 * Function:	HTIOTActIsDisableMCSTwoSpatialStream
 *
-* Overview:	Check whether driver should declare capability of receving All 2 ss packets
+* Overview:	Check whether driver should declare capability of receiving All 2 ss packets
 *
 * Input:
 *			PADAPTER		Adapter,
@@ -1681,7 +1681,7 @@ void HTSetConnectBwMode(struct ieee80211_device* ieee, HT_CHANNEL_WIDTH	Bandwidt
 	//if in half N mode, set to 20M bandwidth please 09.08.2008 WB.
 	if (Bandwidth==HT_CHANNEL_WIDTH_20_40 && (!ieee->GetHalfNmodeSupportByAPsHandler(ieee)))
 	 {
-	 		// Handle Illegal extention channel offset!!
+	 		// Handle Illegal extension channel offset!!
 		if(ieee->current_network.channel<2 && Offset==HT_EXTCHNL_OFFSET_LOWER)
 			Offset = HT_EXTCHNL_OFFSET_NO_EXT;
 		if(Offset==HT_EXTCHNL_OFFSET_UPPER || Offset==HT_EXTCHNL_OFFSET_LOWER) {
@@ -1698,7 +1698,7 @@ void HTSetConnectBwMode(struct ieee80211_device* ieee, HT_CHANNEL_WIDTH	Bandwidt
 
 	pHTInfo->bSwBwInProgress = true;
 
-	// TODO: 2007.7.13 by Emily Wait 2000ms  in order to garantee that switching
+	// TODO: 2007.7.13 by Emily Wait 2000ms  in order to guarantee that switching
 	//   bandwidth is executed after scan is finished. It is a temporal solution
 	//   because software should ganrantee the last operation of switching bandwidth
 	//   is executed properlly.
diff --git a/drivers/staging/rtl8192e/ieee80211/rtl819x_TS.h b/drivers/staging/rtl8192e/ieee80211/rtl819x_TS.h
index baaac2149de1..e7e26fd96395 100644
--- a/drivers/staging/rtl8192e/ieee80211/rtl819x_TS.h
+++ b/drivers/staging/rtl8192e/ieee80211/rtl819x_TS.h
@@ -44,7 +44,7 @@ typedef struct _RX_TS_RECORD {
 	u16				RxTimeoutIndicateSeq;
 	struct list_head		RxPendingPktList;
 	struct timer_list		RxPktPendingTimer;
-	BA_RECORD			RxAdmittedBARecord;	 // For BA Recepient
+	BA_RECORD			RxAdmittedBARecord;	 // For BA Recipient
 	u16				RxLastSeqNum;
 	u8				RxLastFragNum;
 	u8				num;
diff --git a/drivers/staging/rtl8192e/ieee80211/rtl819x_TSProc.c b/drivers/staging/rtl8192e/ieee80211/rtl819x_TSProc.c
index 29eecf0ab769..ad6872dcf1c2 100644
--- a/drivers/staging/rtl8192e/ieee80211/rtl819x_TSProc.c
+++ b/drivers/staging/rtl8192e/ieee80211/rtl819x_TSProc.c
@@ -135,7 +135,7 @@ void ResetRxTsEntry(PRX_TS_RECORD pTS)
 	ResetTsCommonInfo(&pTS->TsCommonInfo);
 	pTS->RxIndicateSeq = 0xffff; // This indicate the RxIndicateSeq is not used now!!
 	pTS->RxTimeoutIndicateSeq = 0xffff; // This indicate the RxTimeoutIndicateSeq is not used now!!
-	ResetBaEntry(&pTS->RxAdmittedBARecord);	  // For BA Recepient
+	ResetBaEntry(&pTS->RxAdmittedBARecord);	  // For BA Recipient
 }
 
 void TSInitialize(struct ieee80211_device *ieee)
diff --git a/drivers/staging/rtl8192e/r819xE_phy.c b/drivers/staging/rtl8192e/r819xE_phy.c
index dfa4e112ef46..9e7828ef1cbe 100644
--- a/drivers/staging/rtl8192e/r819xE_phy.c
+++ b/drivers/staging/rtl8192e/r819xE_phy.c
@@ -2032,13 +2032,13 @@ void rtl8192_SetBWModeWorkItem(struct r8192_priv *priv)
 	{
 		case HT_CHANNEL_WIDTH_20:
 			regBwOpMode |= BW_OPMODE_20MHZ;
-		       // 2007/02/07 Mark by Emily becasue we have not verify whether this register works
+		       // 2007/02/07 Mark by Emily because we have not verify whether this register works
 			write_nic_byte(priv, BW_OPMODE, regBwOpMode);
 			break;
 
 		case HT_CHANNEL_WIDTH_20_40:
 			regBwOpMode &= ~BW_OPMODE_20MHZ;
-        		// 2007/02/07 Mark by Emily becasue we have not verify whether this register works
+        		// 2007/02/07 Mark by Emily because we have not verify whether this register works
 			write_nic_byte(priv, BW_OPMODE, regBwOpMode);
 			break;
 
@@ -2116,7 +2116,7 @@ void rtl8192_SetBWModeWorkItem(struct r8192_priv *priv)
 }
 
 /******************************************************************************
- *function:  This function schedules bandwith switch work.
+ *function:  This function schedules bandwidth switch work.
  *   input:  struct net_device *dev
  *   	     HT_CHANNEL_WIDTH	Bandwidth  //20M or 40M
  *   	     HT_EXTCHNL_OFFSET Offset 	   //Upper, Lower, or Don't care
diff --git a/drivers/staging/rtl8192u/Kconfig b/drivers/staging/rtl8192u/Kconfig
index 28969198e7e2..3f055091b35f 100644
--- a/drivers/staging/rtl8192u/Kconfig
+++ b/drivers/staging/rtl8192u/Kconfig
@@ -1,6 +1,7 @@
 config RTL8192U
 	tristate "RealTek RTL8192U Wireless LAN NIC driver"
 	depends on PCI && WLAN && USB
+	depends on m
 	select WIRELESS_EXT
 	select WEXT_PRIV
 	select CRYPTO
diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211.h b/drivers/staging/rtl8192u/ieee80211/ieee80211.h
index c0b844d75c0d..e716f7b1144f 100644
--- a/drivers/staging/rtl8192u/ieee80211/ieee80211.h
+++ b/drivers/staging/rtl8192u/ieee80211/ieee80211.h
@@ -1965,7 +1965,7 @@ struct ieee80211_device {
 	u16 prev_seq_ctl;       /* used to drop duplicate frames */
 
 	/* map of allowed channels. 0 is dummy */
-	// FIXME: remeber to default to a basic channel plan depending of the PHY type
+	// FIXME: remember to default to a basic channel plan depending of the PHY type
 	void* pDot11dInfo;
 	bool bGlobalDomain;
 	int rate;       /* current rate */
@@ -2119,7 +2119,7 @@ struct ieee80211_device {
 	 * not set. As some cards may have different HW queues that
 	 * one might want to use for data and management frames
 	 * the option to have two callbacks might be useful.
-	 * This fucntion can't sleep.
+	 * This function can't sleep.
 	 */
 	int (*softmac_hard_start_xmit)(struct sk_buff *skb,
 			       struct net_device *dev);
@@ -2158,9 +2158,9 @@ struct ieee80211_device {
 	 * it is called in a work_queue when swithcing to ad-hoc mode
 	 * or in behalf of iwlist scan when the card is associated
 	 * and root user ask for a scan.
-	 * the fucntion stop_scan should stop both the syncro and
+	 * the function stop_scan should stop both the syncro and
 	 * background scanning and can sleep.
-	 * The fucntion start_scan should initiate the background
+	 * The function start_scan should initiate the background
 	 * scanning and can't sleep.
 	 */
 	void (*scan_syncro)(struct net_device *dev);
diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_rx.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_rx.c
index 498b520efcf4..a414303aef54 100644
--- a/drivers/staging/rtl8192u/ieee80211/ieee80211_rx.c
+++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_rx.c
@@ -1399,7 +1399,7 @@ int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
 static u8 qos_oui[QOS_OUI_LEN] = { 0x00, 0x50, 0xF2 };
 
 /*
-* Make ther structure we read from the beacon packet has
+* Make the structure we read from the beacon packet to have
 * the right values
 */
 static int ieee80211_verify_qos_info(struct ieee80211_qos_information_element
diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c
index 4992d630f984..4ec0a6520ddc 100644
--- a/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c
+++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c
@@ -1973,7 +1973,7 @@ ieee80211_rx_frame_softmac(struct ieee80211_device *ieee, struct sk_buff *skb,
 							return 1;
 						}
 						else
-						{	//filling the PeerHTCap. //maybe not neccesary as we can get its info from current_network.
+						{	//filling the PeerHTCap. //maybe not necessary as we can get its info from current_network.
 							memcpy(ieee->pHTInfo->PeerHTCapBuf, network->bssht.bdHTCapBuf, network->bssht.bdHTCapLen);
 							memcpy(ieee->pHTInfo->PeerHTInfoBuf, network->bssht.bdHTInfoBuf, network->bssht.bdHTInfoLen);
 						}
@@ -2113,7 +2113,7 @@ ieee80211_rx_frame_softmac(struct ieee80211_device *ieee, struct sk_buff *skb,
 	return 0;
 }
 
-/* following are for a simplier TX queue management.
+/* following are for a simpler TX queue management.
  * Instead of using netif_[stop/wake]_queue the driver
  * will uses these two function (plus a reset one), that
  * will internally uses the kernel netif_* and takes
diff --git a/drivers/staging/rtl8192u/ieee80211/rtl819x_HT.h b/drivers/staging/rtl8192u/ieee80211/rtl819x_HT.h
index cde603f67f43..0b1a1fc09391 100644
--- a/drivers/staging/rtl8192u/ieee80211/rtl819x_HT.h
+++ b/drivers/staging/rtl8192u/ieee80211/rtl819x_HT.h
@@ -64,7 +64,7 @@ typedef enum _HT_CHANNEL_WIDTH{
 }HT_CHANNEL_WIDTH, *PHT_CHANNEL_WIDTH;
 
 //
-// Represent Extention Channel Offset in HT Capabilities
+// Represent Extension Channel Offset in HT Capabilities
 // This is available only in 40Mhz mode.
 //
 typedef enum _HT_EXTCHNL_OFFSET{
diff --git a/drivers/staging/rtl8192u/ieee80211/rtl819x_HTProc.c b/drivers/staging/rtl8192u/ieee80211/rtl819x_HTProc.c
index 50f4f5943e75..e88a839b2a91 100644
--- a/drivers/staging/rtl8192u/ieee80211/rtl819x_HTProc.c
+++ b/drivers/staging/rtl8192u/ieee80211/rtl819x_HTProc.c
@@ -423,7 +423,7 @@ u8 HTIOTActIsDisableMCS14(struct ieee80211_device* ieee, u8* PeerMacAddr)
 /**
 * Function:	HTIOTActIsDisableMCS15
 *
-* Overview:	Check whether driver should declare capability of receving MCS15
+* Overview:	Check whether driver should declare capability of receiving MCS15
 *
 * Input:
 *			PADAPTER		Adapter,
@@ -460,7 +460,7 @@ bool HTIOTActIsDisableMCS15(struct ieee80211_device* ieee)
 /**
 * Function:	HTIOTActIsDisableMCSTwoSpatialStream
 *
-* Overview:	Check whether driver should declare capability of receving All 2 ss packets
+* Overview:	Check whether driver should declare capability of receiving All 2 ss packets
 *
 * Input:
 *			PADAPTER		Adapter,
@@ -1409,7 +1409,7 @@ void HTSetConnectBwMode(struct ieee80211_device* ieee, HT_CHANNEL_WIDTH	Bandwidt
 	//if in half N mode, set to 20M bandwidth please 09.08.2008 WB.
 	if(Bandwidth==HT_CHANNEL_WIDTH_20_40 && (!ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev)))
 	 {
-			// Handle Illegal extention channel offset!!
+			// Handle Illegal extension channel offset!!
 		if(ieee->current_network.channel<2 && Offset==HT_EXTCHNL_OFFSET_LOWER)
 			Offset = HT_EXTCHNL_OFFSET_NO_EXT;
 		if(Offset==HT_EXTCHNL_OFFSET_UPPER || Offset==HT_EXTCHNL_OFFSET_LOWER) {
@@ -1426,7 +1426,7 @@ void HTSetConnectBwMode(struct ieee80211_device* ieee, HT_CHANNEL_WIDTH	Bandwidt
 
 	pHTInfo->bSwBwInProgress = true;
 
-	// TODO: 2007.7.13 by Emily Wait 2000ms  in order to garantee that switching
+	// TODO: 2007.7.13 by Emily Wait 2000ms  in order to guarantee that switching
 	//   bandwidth is executed after scan is finished. It is a temporal solution
 	//   because software should ganrantee the last operation of switching bandwidth
 	//   is executed properlly.
diff --git a/drivers/staging/rtl8192u/ieee80211/rtl819x_TS.h b/drivers/staging/rtl8192u/ieee80211/rtl819x_TS.h
index baaac2149de1..e7e26fd96395 100644
--- a/drivers/staging/rtl8192u/ieee80211/rtl819x_TS.h
+++ b/drivers/staging/rtl8192u/ieee80211/rtl819x_TS.h
@@ -44,7 +44,7 @@ typedef struct _RX_TS_RECORD {
 	u16				RxTimeoutIndicateSeq;
 	struct list_head		RxPendingPktList;
 	struct timer_list		RxPktPendingTimer;
-	BA_RECORD			RxAdmittedBARecord;	 // For BA Recepient
+	BA_RECORD			RxAdmittedBARecord;	 // For BA Recipient
 	u16				RxLastSeqNum;
 	u8				RxLastFragNum;
 	u8				num;
diff --git a/drivers/staging/rtl8192u/ieee80211/rtl819x_TSProc.c b/drivers/staging/rtl8192u/ieee80211/rtl819x_TSProc.c
index c3fcaae0750d..957ce4ef48b5 100644
--- a/drivers/staging/rtl8192u/ieee80211/rtl819x_TSProc.c
+++ b/drivers/staging/rtl8192u/ieee80211/rtl819x_TSProc.c
@@ -135,7 +135,7 @@ void ResetRxTsEntry(PRX_TS_RECORD pTS)
 	ResetTsCommonInfo(&pTS->TsCommonInfo);
 	pTS->RxIndicateSeq = 0xffff; // This indicate the RxIndicateSeq is not used now!!
 	pTS->RxTimeoutIndicateSeq = 0xffff; // This indicate the RxTimeoutIndicateSeq is not used now!!
-	ResetBaEntry(&pTS->RxAdmittedBARecord);	  // For BA Recepient
+	ResetBaEntry(&pTS->RxAdmittedBARecord);	  // For BA Recipient
 }
 
 void TSInitialize(struct ieee80211_device *ieee)
diff --git a/drivers/staging/rtl8192u/ieee80211/scatterwalk.c b/drivers/staging/rtl8192u/ieee80211/scatterwalk.c
index 49f401fbce88..3543a6145046 100644
--- a/drivers/staging/rtl8192u/ieee80211/scatterwalk.c
+++ b/drivers/staging/rtl8192u/ieee80211/scatterwalk.c
@@ -71,7 +71,7 @@ static void scatterwalk_pagedone(struct scatter_walk *walk, int out,
 				 unsigned int more)
 {
 	/* walk->data may be pointing the first byte of the next page;
-	   however, we know we transfered at least one byte.  So,
+	   however, we know we transferred at least one byte.  So,
 	   walk->data - 1 will be a virtual address in the mapped page. */
 
 	if (out)
diff --git a/drivers/staging/rtl8192u/r8192U_core.c b/drivers/staging/rtl8192u/r8192U_core.c
index da612e6d994e..e81b8ab6aa9d 100644
--- a/drivers/staging/rtl8192u/r8192U_core.c
+++ b/drivers/staging/rtl8192u/r8192U_core.c
@@ -460,7 +460,7 @@ u32 read_nic_dword(struct net_device *dev, int indx)
 /* u8 read_phy_cck(struct net_device *dev, u8 adr); */
 /* u8 read_phy_ofdm(struct net_device *dev, u8 adr); */
 /* this might still called in what was the PHY rtl8185/rtl8192 common code
- * plans are to possibilty turn it again in one common code...
+ * plans are to possibility turn it again in one common code...
  */
 inline void force_pci_posting(struct net_device *dev)
 {
@@ -1378,7 +1378,7 @@ struct sk_buff *DrvAggr_Aggregation(struct net_device *dev, struct ieee80211_drv
 		//tx_agg_desc->LINIP = 0;
 		//tx_agg_desc->CmdInit = 1;
 		tx_agg_desc->Offset =  sizeof(tx_fwinfo_819x_usb) + 8;
-		/* already raw data, need not to substract header length */
+		/* already raw data, need not to subtract header length */
 		tx_agg_desc->PktSize = skb->len & 0xffff;
 
 		/*DWORD 1*/
@@ -2888,7 +2888,7 @@ static void rtl8192_get_eeprom_size(struct net_device* dev)
 	RT_TRACE(COMP_EPROM, "<===========%s(), epromtype:%d\n", __FUNCTION__, priv->epromtype);
 }
 
-//used to swap endian. as ntohl & htonl are not neccessary to swap endian, so use this instead.
+//used to swap endian. as ntohl & htonl are not necessary to swap endian, so use this instead.
 static inline u16 endian_swap(u16* data)
 {
 	u16 tmp = *data;
diff --git a/drivers/staging/rtl8192u/r819xU_HTType.h b/drivers/staging/rtl8192u/r819xU_HTType.h
index 01f58b902028..2ac421626e7c 100644
--- a/drivers/staging/rtl8192u/r819xU_HTType.h
+++ b/drivers/staging/rtl8192u/r819xU_HTType.h
@@ -65,7 +65,7 @@ typedef enum _HT_CHANNEL_WIDTH{
 }HT_CHANNEL_WIDTH, *PHT_CHANNEL_WIDTH;
 
 //
-// Represent Extention Channel Offset in HT Capabilities
+// Represent Extension Channel Offset in HT Capabilities
 // This is available only in 40Mhz mode.
 //
 typedef enum _HT_EXTCHNL_OFFSET{
diff --git a/drivers/staging/rtl8192u/r819xU_phy.c b/drivers/staging/rtl8192u/r819xU_phy.c
index 41684e8fcf4c..c4586b0817d1 100644
--- a/drivers/staging/rtl8192u/r819xU_phy.c
+++ b/drivers/staging/rtl8192u/r819xU_phy.c
@@ -1531,13 +1531,13 @@ void rtl8192_SetBWModeWorkItem(struct net_device *dev)
 	{
 		case HT_CHANNEL_WIDTH_20:
 			regBwOpMode |= BW_OPMODE_20MHZ;
-		       // 2007/02/07 Mark by Emily becasue we have not verify whether this register works
+		       // 2007/02/07 Mark by Emily because we have not verify whether this register works
 			write_nic_byte(dev, BW_OPMODE, regBwOpMode);
 			break;
 
 		case HT_CHANNEL_WIDTH_20_40:
 			regBwOpMode &= ~BW_OPMODE_20MHZ;
-			// 2007/02/07 Mark by Emily becasue we have not verify whether this register works
+			// 2007/02/07 Mark by Emily because we have not verify whether this register works
 			write_nic_byte(dev, BW_OPMODE, regBwOpMode);
 			break;
 
@@ -1647,7 +1647,7 @@ void rtl8192_SetBWModeWorkItem(struct net_device *dev)
 }
 
 /******************************************************************************
- *function:  This function schedules bandwith switch work.
+ *function:  This function schedules bandwidth switch work.
  *   input:  struct net_device *dev
  *   	     HT_CHANNEL_WIDTH	Bandwidth  //20M or 40M
  *   	     HT_EXTCHNL_OFFSET Offset 	   //Upper, Lower, or Don't care
diff --git a/drivers/staging/rtl8712/rtl871x_cmd.h b/drivers/staging/rtl8712/rtl871x_cmd.h
index 3a945b5f0e01..2dc78476b7d3 100644
--- a/drivers/staging/rtl8712/rtl871x_cmd.h
+++ b/drivers/staging/rtl8712/rtl871x_cmd.h
@@ -656,7 +656,7 @@ struct PT_param {
 /*
  * Result:
  * 0x00: success
- * 0x01: sucess, and check Response.
+ * 0x01: success, and check Response.
  * 0x02: cmd ignored due to duplicated sequcne number
  * 0x03: cmd dropped due to invalid cmd code
  * 0x04: reserved.
diff --git a/drivers/staging/rtl8712/rtl871x_led.h b/drivers/staging/rtl8712/rtl871x_led.h
index 994ef82141ab..8085e5eb82b1 100644
--- a/drivers/staging/rtl8712/rtl871x_led.h
+++ b/drivers/staging/rtl8712/rtl871x_led.h
@@ -78,14 +78,14 @@ struct LED_871x {
 };
 
 struct led_priv {
-	/* add for led controll */
+	/* add for led control */
 	struct LED_871x		SwLed0;
 	struct LED_871x		SwLed1;
 	enum LED_STRATEGY_871x	LedStrategy;
 	u8			bRegUseLed;
 	void (*LedControlHandler)(struct _adapter *padapter,
 				  enum LED_CTL_MODE LedAction);
-	/* add for led controll */
+	/* add for led control */
 };
 
 /*===========================================================================
diff --git a/drivers/staging/rtl8712/rtl871x_mlme.c b/drivers/staging/rtl8712/rtl871x_mlme.c
index 98ba7602e250..866554d48d86 100644
--- a/drivers/staging/rtl8712/rtl871x_mlme.c
+++ b/drivers/staging/rtl8712/rtl871x_mlme.c
@@ -1663,7 +1663,7 @@ void r8712_update_registrypriv_dev_network(struct _adapter *adapter)
 			      (struct ndis_wlan_bssid_ex *)pdev_network);
 }
 
-/*the fucntion is at passive_level*/
+/*the function is at passive_level*/
 void r8712_joinbss_reset(struct _adapter *padapter)
 {
 	int i;
@@ -1726,7 +1726,7 @@ unsigned int r8712_restructure_ht_ie(struct _adapter *padapter, u8 *in_ie,
 	return phtpriv->ht_option;
 }
 
-/* the fucntion is > passive_level (in critical_section) */
+/* the function is > passive_level (in critical_section) */
 static void update_ht_cap(struct _adapter *padapter, u8 *pie, uint ie_len)
 {
 	u8 *p, max_ampdu_sz;
@@ -1803,7 +1803,7 @@ void r8712_issue_addbareq_cmd(struct _adapter *padapter, int priority)
 	}
 }
 
-/*the fucntion is >= passive_level*/
+/*the function is >= passive_level*/
 unsigned int r8712_add_ht_addt_info(struct _adapter *padapter,
 			      u8 *in_ie, u8 *out_ie,
 			      uint in_len, uint *pout_len)
diff --git a/drivers/staging/rtl8712/rtl871x_mlme.h b/drivers/staging/rtl8712/rtl871x_mlme.h
index 2b35b740ab89..2794804d0822 100644
--- a/drivers/staging/rtl8712/rtl871x_mlme.h
+++ b/drivers/staging/rtl8712/rtl871x_mlme.h
@@ -29,7 +29,7 @@
 						 *  single-tone*/
 #define	WIFI_MP_CTX_BACKGROUND_PENDING	0x00080000 /* pending in cont, tx
 					* background due to out of skb*/
-#define	WIFI_MP_CTX_CCK_HW	0x00100000	/* in continous tx*/
+#define	WIFI_MP_CTX_CCK_HW	0x00100000	/* in continuous tx*/
 #define	WIFI_MP_CTX_CCK_CS	0x00200000	/* in cont, tx with carrier
 						 * suppression*/
 #define   WIFI_MP_LPBK_STATE	0x00400000
diff --git a/drivers/staging/rtl8712/rtl871x_mp_phy_regdef.h b/drivers/staging/rtl8712/rtl871x_mp_phy_regdef.h
index e386fb0aac3e..23532a793859 100644
--- a/drivers/staging/rtl8712/rtl871x_mp_phy_regdef.h
+++ b/drivers/staging/rtl8712/rtl871x_mp_phy_regdef.h
@@ -38,7 +38,7 @@
  * 2. 0x800/0x900/0xA00/0xC00/0xD00/0xE00
  * 3. RF register 0x00-2E
  * 4. Bit Mask for BB/RF register
- * 5. Other defintion for BB/RF R/W
+ * 5. Other definition for BB/RF R/W
  *
  * 1. PMAC duplicate register due to connection: RF_Mode, TRxRN, NumOf L-STF
  * 1. Page1(0x100)
diff --git a/drivers/staging/rtl8712/usb_halinit.c b/drivers/staging/rtl8712/usb_halinit.c
index 0e9483bbabe1..46287c17a417 100644
--- a/drivers/staging/rtl8712/usb_halinit.c
+++ b/drivers/staging/rtl8712/usb_halinit.c
@@ -112,7 +112,7 @@ u8 r8712_usb_hal_bus_init(struct _adapter *padapter)
 		/* Initialization for power on sequence, */
 		r8712_write8(padapter, SPS0_CTRL + 1, 0x53);
 		r8712_write8(padapter, SPS0_CTRL, 0x57);
-		/* Enable AFE Macro Block's Bandgap adn Enable AFE Macro
+		/* Enable AFE Macro Block's Bandgap and Enable AFE Macro
 		 * Block's Mbias
 		 */
 		val8 = r8712_read8(padapter, AFE_MISC);
diff --git a/drivers/staging/rts_pstor/rtsx.c b/drivers/staging/rts_pstor/rtsx.c
index 4514419a5fb8..02525d57ba83 100644
--- a/drivers/staging/rts_pstor/rtsx.c
+++ b/drivers/staging/rts_pstor/rtsx.c
@@ -824,13 +824,13 @@ static void rtsx_init_options(struct rtsx_chip *chip)
 	chip->fpga_ms_hg_clk = CLK_80;
 	chip->fpga_ms_4bit_clk = CLK_80;
 	chip->fpga_ms_1bit_clk = CLK_40;
-	chip->asic_sd_sdr104_clk = 207;
-	chip->asic_sd_sdr50_clk = 99;
-	chip->asic_sd_ddr50_clk = 99;
-	chip->asic_sd_hs_clk = 99;
-	chip->asic_mmc_52m_clk = 99;
-	chip->asic_ms_hg_clk = 119;
-	chip->asic_ms_4bit_clk = 79;
+	chip->asic_sd_sdr104_clk = 203;
+	chip->asic_sd_sdr50_clk = 98;
+	chip->asic_sd_ddr50_clk = 98;
+	chip->asic_sd_hs_clk = 98;
+	chip->asic_mmc_52m_clk = 98;
+	chip->asic_ms_hg_clk = 117;
+	chip->asic_ms_4bit_clk = 78;
 	chip->asic_ms_1bit_clk = 39;
 	chip->ssc_depth_sd_sdr104 = SSC_DEPTH_2M;
 	chip->ssc_depth_sd_sdr50 = SSC_DEPTH_2M;
diff --git a/drivers/staging/rts_pstor/rtsx_chip.c b/drivers/staging/rts_pstor/rtsx_chip.c
index f443d97a56f8..d2f1c715a684 100644
--- a/drivers/staging/rts_pstor/rtsx_chip.c
+++ b/drivers/staging/rts_pstor/rtsx_chip.c
@@ -684,6 +684,11 @@ static int rts5209_init(struct rtsx_chip *chip)
 	RTSX_DEBUGP("dw in 0x724: 0x%x\n", lval);
 	val = (u8)lval;
 	if (!(val & 0x80)) {
+		if (val & 0x08)
+			chip->lun_mode = DEFAULT_SINGLE;
+		else
+			chip->lun_mode = SD_MS_2LUN;
+
 		if (val & 0x04) {
 			SET_SDIO_EXIST(chip);
 		} else {
@@ -705,12 +710,6 @@ static int rts5209_init(struct rtsx_chip *chip)
 
 		chip->aspm_l0s_l1_en = (val >> 5) & 0x03;
 
-		if (val & 0x08) {
-			chip->lun_mode = DEFAULT_SINGLE;
-		} else {
-			chip->lun_mode = SD_MS_2LUN;
-		}
-
 		val = (u8)(lval >> 8);
 
 		clk = (val >> 5) & 0x07;
diff --git a/drivers/staging/rts_pstor/rtsx_chip.h b/drivers/staging/rts_pstor/rtsx_chip.h
index 713c5eaadacd..9f7cd82a1541 100644
--- a/drivers/staging/rts_pstor/rtsx_chip.h
+++ b/drivers/staging/rts_pstor/rtsx_chip.h
@@ -180,8 +180,8 @@
 #define CUR_ERR                 0x70    /* current error                    */
 #define DEF_ERR                 0x71    /* specific command error           */
 
-/*---- sense key Infomation ----*/
-#define SNSKEYINFO_LEN          3       /* length of sense key infomation   */
+/*---- sense key Information ----*/
+#define SNSKEYINFO_LEN          3       /* length of sense key information   */
 
 #define SKSV                    0x80
 #define CDB_ILLEGAL             0x40
@@ -235,13 +235,13 @@ struct sense_data_t {
     unsigned char   seg_no;		/* segment No.                      */
     unsigned char   sense_key;		/* byte5 : ILI                      */
 						/* bit3-0 : sense key              */
-    unsigned char   info[4];		/* infomation                       */
+    unsigned char   info[4];		/* information                       */
     unsigned char   ad_sense_len;	/* additional sense data length     */
-    unsigned char   cmd_info[4];	/* command specific infomation      */
+    unsigned char   cmd_info[4];	/* command specific information      */
     unsigned char   asc;		/* ASC                              */
     unsigned char   ascq;		/* ASCQ                             */
     unsigned char   rfu;		/* FRU                              */
-    unsigned char   sns_key_info[3];	/* sense key specific infomation    */
+    unsigned char   sns_key_info[3];	/* sense key specific information    */
 };
 
 /* PCI Operation Register Address */
diff --git a/drivers/staging/rts_pstor/rtsx_scsi.h b/drivers/staging/rts_pstor/rtsx_scsi.h
index fac122c1eabd..64b84992fdb3 100644
--- a/drivers/staging/rts_pstor/rtsx_scsi.h
+++ b/drivers/staging/rts_pstor/rtsx_scsi.h
@@ -85,7 +85,7 @@
 #define CHIP_NORMALMODE		0x00
 #define CHIP_DEBUGMODE		0x01
 
-/* SD Pass Through Command Extention */
+/* SD Pass Through Command Extension */
 #define SD_PASS_THRU_MODE	0xD0
 #define SD_EXECUTE_NO_DATA	0xD1
 #define SD_EXECUTE_READ		0xD2
diff --git a/drivers/staging/rts_pstor/sd.c b/drivers/staging/rts_pstor/sd.c
index 21bfa5755bec..8d066bd428c4 100644
--- a/drivers/staging/rts_pstor/sd.c
+++ b/drivers/staging/rts_pstor/sd.c
@@ -1719,7 +1719,7 @@ static u8 sd_search_final_phase(struct rtsx_chip *chip, u32 phase_map, u8 tune_d
 	}
 
 Search_Finish:
-	RTSX_DEBUGP("Final choosen phase: %d\n", final_phase);
+	RTSX_DEBUGP("Final chosen phase: %d\n", final_phase);
 	return final_phase;
 }
 
diff --git a/drivers/staging/sep/sep_driver.c b/drivers/staging/sep/sep_driver.c
index 71a5fbc041e4..890eede5e3f9 100644
--- a/drivers/staging/sep/sep_driver.c
+++ b/drivers/staging/sep/sep_driver.c
@@ -55,8 +55,6 @@
 #include <linux/jiffies.h>
 #include <linux/rar_register.h>
 
-#include "../memrar/memrar.h"
-
 #include "sep_driver_hw_defs.h"
 #include "sep_driver_config.h"
 #include "sep_driver_api.h"
@@ -586,7 +584,7 @@ static unsigned int sep_poll(struct file *filp, poll_table *wait)
 	dev_dbg(&sep->pdev->dev, "poll: send_ct is %lx reply ct is %lx\n",
 		sep->send_ct, sep->reply_ct);
 
-	/* Check if error occured during poll */
+	/* Check if error occurred during poll */
 	retval2 = sep_read_reg(sep, HW_HOST_SEP_HOST_GPR3_REG_ADDR);
 	if (retval2 != 0x0) {
 		dev_warn(&sep->pdev->dev, "poll; poll error %x\n", retval2);
@@ -1106,7 +1104,7 @@ static int sep_lock_user_pages(struct sep_device *sep,
 			lli_array[count].block_size);
 	}
 
-	/* Set output params acording to the in_out flag */
+	/* Set output params according to the in_out flag */
 	if (in_out_flag == SEP_DRIVER_IN_FLAG) {
 		*lli_array_ptr = lli_array;
 		sep->dma_res_arr[sep->nr_dcb_creat].in_num_pages = num_pages;
@@ -1577,7 +1575,7 @@ static int sep_prepare_input_dma_table(struct sep_device *sep,
 
 		/*
 		 * If this is not the last table -
-		 * then allign it to the block size
+		 * then align it to the block size
 		 */
 		if (!last_table_flag)
 			table_data_size =
@@ -1974,7 +1972,7 @@ static int sep_prepare_input_output_dma_table(struct sep_device *sep,
 	dev_dbg(&sep->pdev->dev, "SEP_DRIVER_ENTRIES_PER_TABLE_IN_SEP is %x\n",
 		SEP_DRIVER_ENTRIES_PER_TABLE_IN_SEP);
 
-	/* Call the fucntion that creates table from the lli arrays */
+	/* Call the function that creates table from the lli arrays */
 	error = sep_construct_dma_tables_from_lli(sep, lli_in_array,
 		sep->dma_res_arr[sep->nr_dcb_creat].in_num_pages,
 		lli_out_array,
@@ -2372,7 +2370,6 @@ static int sep_rar_prepare_output_msg_handler(struct sep_device *sep,
 	int error = 0;
 	/* Command args */
 	struct rar_hndl_to_bus_struct command_args;
-	struct RAR_buffer rar_buf;
 	/* Bus address */
 	dma_addr_t  rar_bus = 0;
 	/* Holds the RAR address in the system memory offset */
@@ -2386,16 +2383,8 @@ static int sep_rar_prepare_output_msg_handler(struct sep_device *sep,
 	}
 
 	/* Call to translation function only if user handle is not NULL */
-	if (command_args.rar_handle) {
-		memset(&rar_buf, 0, sizeof(rar_buf));
-		rar_buf.info.handle = (u32)command_args.rar_handle;
-
-		if (rar_handle_to_bus(&rar_buf, 1) != 1) {
-			error = -EFAULT;
-			goto end_function;
-		}
-		rar_bus = rar_buf.bus_address;
-	}
+	if (command_args.rar_handle)
+		return -EOPNOTSUPP;
 	dev_dbg(&sep->pdev->dev, "rar msg; rar_addr_bus = %x\n", (u32)rar_bus);
 
 	/* Set value in the SYSTEM MEMORY offset */
@@ -2416,7 +2405,7 @@ end_function:
  *	@cmd: command
  *	@arg: pointer to argument structure
  *
- *	Implement the ioctl methods availble on the SEP device.
+ *	Implement the ioctl methods available on the SEP device.
  */
 static long sep_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 {
diff --git a/drivers/staging/sep/sep_driver_config.h b/drivers/staging/sep/sep_driver_config.h
index d3b9220f3963..1033425c9c30 100644
--- a/drivers/staging/sep/sep_driver_config.h
+++ b/drivers/staging/sep/sep_driver_config.h
@@ -65,11 +65,11 @@
 #define SEP_DRIVER_MIN_DATA_SIZE_PER_TABLE		16
 
 /* flag that signifies tah the lock is
-currently held by the proccess (struct file) */
+currently held by the process (struct file) */
 #define SEP_DRIVER_OWN_LOCK_FLAG                        1
 
 /* flag that signifies tah the lock is currently NOT
-held by the proccess (struct file) */
+held by the process (struct file) */
 #define SEP_DRIVER_DISOWN_LOCK_FLAG                     0
 
 /* indicates whether driver has mapped/unmapped shared area */
diff --git a/drivers/staging/slicoss/README b/drivers/staging/slicoss/README
index 70f49099c065..b83bba19b7f0 100644
--- a/drivers/staging/slicoss/README
+++ b/drivers/staging/slicoss/README
@@ -33,7 +33,7 @@ TODO:
 	- NAPI?
 	- wasted overhead of extra stats
 	- state variables for things that are
-	  easily availble and shouldn't be kept in card structure, cardnum, ...
+	  easily available and shouldn't be kept in card structure, cardnum, ...
 	  slotnumber, events, ...
 	- get rid of slic_spinlock wrapper
 	- volatile == bad design => bad code
diff --git a/drivers/staging/sm7xx/smtcfb.c b/drivers/staging/sm7xx/smtcfb.c
index d007e4a12c14..3e2230f0879a 100644
--- a/drivers/staging/sm7xx/smtcfb.c
+++ b/drivers/staging/sm7xx/smtcfb.c
@@ -26,10 +26,6 @@
  *	Boyod.yang <boyod.yang@siliconmotion.com.cn>
  */
 
-#ifndef __KERNEL__
-#define __KERNEL__
-#endif
-
 #include <linux/io.h>
 #include <linux/fb.h>
 #include <linux/pci.h>
@@ -965,7 +961,7 @@ static int __devinit smtcfb_pci_probe(struct pci_dev *pdev,
 		goto failed;
 
 	smtcfb_setmode(sfb);
-	/* Primary display starting from 0 postion */
+	/* Primary display starting from 0 position */
 	hw.BaseAddressInVRAM = 0;
 	sfb->fb.par = &hw;
 
@@ -1019,6 +1015,7 @@ static void __devexit smtcfb_pci_remove(struct pci_dev *pdev)
 	smtc_free_fb_info(sfb);
 }
 
+#ifdef CONFIG_PM
 /* Jason (08/14/2009)
  * suspend function, called when the suspend event is triggered
  */
@@ -1055,7 +1052,7 @@ static int __maybe_unused smtcfb_suspend(struct pci_dev *pdev, pm_message_t msg)
 
 	pdev->dev.power.power_state = msg;
 
-	/* additionaly turn off all function blocks including internal PLLs */
+	/* additionally turn off all function blocks including internal PLLs */
 	smtc_seqw(0x21, 0xff);
 
 	return 0;
@@ -1111,6 +1108,7 @@ static int __maybe_unused smtcfb_resume(struct pci_dev *pdev)
 
 	return 0;
 }
+#endif
 
 /* Jason (08/13/2009)
  * pci_driver struct used to wrap the original driver
diff --git a/drivers/staging/speakup/keyhelp.c b/drivers/staging/speakup/keyhelp.c
index 23cf7f44f450..170f38815ffd 100644
--- a/drivers/staging/speakup/keyhelp.c
+++ b/drivers/staging/speakup/keyhelp.c
@@ -69,7 +69,7 @@ static void build_key_data(void)
 	memset(key_offsets, 0, sizeof(key_offsets));
 	kp = state_tbl + nstates + 1;
 	while (*kp++) {
-		/* count occurrances of each function */
+		/* count occurrences of each function */
 		for (i = 0; i < nstates; i++, kp++) {
 			if (!*kp)
 				continue;
diff --git a/drivers/staging/speakup/spkguide.txt b/drivers/staging/speakup/spkguide.txt
index 24362eb7b8f1..f3210571e396 100644
--- a/drivers/staging/speakup/spkguide.txt
+++ b/drivers/staging/speakup/spkguide.txt
@@ -1091,7 +1091,7 @@ screen that is constantly changing, such as a clock or status line.
 
 There is no way to save these window settings, and you can only have one
 window defined for each virtual console.  There is also no way to have
-windows automaticly defined for specific applications.
+windows automatically defined for specific applications.
 
 In order to define a window, use the review keys to move your reading
 cursor to the beginning of the area you want to define.  Then press
diff --git a/drivers/staging/spectra/ffsport.c b/drivers/staging/spectra/ffsport.c
index 007b24b54e25..20dae73d3b78 100644
--- a/drivers/staging/spectra/ffsport.c
+++ b/drivers/staging/spectra/ffsport.c
@@ -38,7 +38,7 @@
 * Outputs:      Number of Used Bits
 *               0, if the argument is 0
 * Description:  Calculate the number of bits used by a given power of 2 number
-*               Number can be upto 32 bit
+*               Number can be up to 32 bit
 *&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
 int GLOB_Calc_Used_Bits(u32 n)
 {
@@ -653,7 +653,7 @@ static int SBD_setup_device(struct spectra_nand_dev *dev, int which)
 	}
 	dev->queue->queuedata = dev;
 
-	/* As Linux block layer doens't support >4KB hardware sector,  */
+	/* As Linux block layer does't support >4KB hardware sector,  */
 	/* Here we force report 512 byte hardware sector size to Kernel */
 	blk_queue_logical_block_size(dev->queue, 512);
 
diff --git a/drivers/staging/spectra/flash.c b/drivers/staging/spectra/flash.c
index a2f820025ae4..aead358e5c2a 100644
--- a/drivers/staging/spectra/flash.c
+++ b/drivers/staging/spectra/flash.c
@@ -965,7 +965,7 @@ static void process_cmd_fail_abort(int *first_failed_cmd,
 	if (0 == *first_failed_cmd)
 		*first_failed_cmd = PendingCMD[idx].SBDCmdIndex;
 
-	nand_dbg_print(NAND_DBG_DEBUG, "Uncorrectable error has occured "
+	nand_dbg_print(NAND_DBG_DEBUG, "Uncorrectable error has occurred "
 		"while executing %u Command %u accesing Block %u\n",
 		(unsigned int)p_BTableChangesDelta->ftl_cmd_cnt,
 		PendingCMD[idx].CMD,
@@ -1879,7 +1879,7 @@ static int write_back_to_l2_cache(u8 *buf, u64 logical_addr)
 }
 
 /*
- * Seach in the Level2 Cache table to find the cache item.
+ * Search in the Level2 Cache table to find the cache item.
  * If find, read the data from the NAND page of L2 Cache,
  * Otherwise, return FAIL.
  */
@@ -3989,7 +3989,7 @@ int GLOB_FTL_Block_Erase(u64 blk_addr)
 * Inputs:       index to block that was just incremented and is at the max
 * Outputs:      PASS=0 / FAIL=1
 * Description:  If any erase counts at MAX, adjusts erase count of every
-*               block by substracting least worn
+*               block by subtracting least worn
 *               counter from counter value of every entry in wear table
 *&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
 static int FTL_Adjust_Relative_Erase_Count(u32 Index_of_MAX)
diff --git a/drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c b/drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c
index d55a8e40318b..3e68d58fdffd 100644
--- a/drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c
+++ b/drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c
@@ -71,7 +71,7 @@
 #define SYNAPTICS_RMI4_DEVICE_CONTROL_FUNC_NUM	(0x01)
 
 /**
- * struct synaptics_rmi4_fn_desc - contains the funtion descriptor information
+ * struct synaptics_rmi4_fn_desc - contains the function descriptor information
  * @query_base_addr: base address for query
  * @cmd_base_addr: base address for command
  * @ctrl_base_addr: base address for control
@@ -92,7 +92,7 @@ struct synaptics_rmi4_fn_desc {
 };
 
 /**
- * struct synaptics_rmi4_fn - contains the funtion information
+ * struct synaptics_rmi4_fn - contains the function information
  * @fn_number: function number
  * @num_of_data_sources: number of data sources
  * @num_of_data_points: number of fingers touched
@@ -151,7 +151,7 @@ struct synaptics_rmi4_device_info {
  * @input_dev: pointer for input device
  * @i2c_client: pointer for i2c client
  * @board: constant pointer for touch platform data
- * @fn_list_mutex: mutex for funtion list
+ * @fn_list_mutex: mutex for function list
  * @rmi4_page_mutex: mutex for rmi4 page
  * @current_page: variable for integer
  * @number_of_interrupt_register: interrupt registers count
@@ -278,7 +278,7 @@ static int synaptics_rmi4_i2c_byte_write(struct synaptics_rmi4_data *pdata,
 	txbuf[0]	= address & MASK_8BIT;
 	txbuf[1]	= data;
 	retval		= i2c_master_send(pdata->i2c_client, txbuf, 2);
-	/* Add in retry on writes only in certian error return values */
+	/* Add in retry on writes only in certain error return values */
 	if (retval != 2) {
 		dev_err(&i2c->dev, "%s:failed:%d\n", __func__, retval);
 		retval = -EIO;
@@ -561,7 +561,7 @@ static int synpatics_rmi4_touchpad_detect(struct synaptics_rmi4_data *pdata,
 	}
 	/*
 	 * 2D data sources have only 3 bits for the number of fingers
-	 * supported - so the encoding is a bit wierd.
+	 * supported - so the encoding is a bit weird.
 	 */
 	if ((queries[1] & MASK_3BIT) <= 4)
 		/* add 1 since zero based */
@@ -1027,7 +1027,7 @@ err_input:
  * synaptics_rmi4_remove() - Removes the i2c-client touchscreen driver
  * @client: i2c client structure pointer
  *
- * This funtion uses to remove the i2c-client
+ * This function uses to remove the i2c-client
  * touchscreen driver and returns integer.
  */
 static int __devexit synaptics_rmi4_remove(struct i2c_client *client)
@@ -1053,7 +1053,7 @@ static int __devexit synaptics_rmi4_remove(struct i2c_client *client)
  * synaptics_rmi4_suspend() - suspend the touch screen controller
  * @dev: pointer to device structure
  *
- * This funtion is used to suspend the
+ * This function is used to suspend the
  * touch panel controller and returns integer
  */
 static int synaptics_rmi4_suspend(struct device *dev)
@@ -1089,7 +1089,7 @@ static int synaptics_rmi4_suspend(struct device *dev)
  * synaptics_rmi4_resume() - resume the touch screen controller
  * @dev: pointer to device structure
  *
- * This funtion is used to resume the touch panel
+ * This function is used to resume the touch panel
  * controller and returns integer.
  */
 static int synaptics_rmi4_resume(struct device *dev)
@@ -1148,7 +1148,7 @@ static struct i2c_driver synaptics_rmi4_driver = {
 /**
  * synaptics_rmi4_init() - Initialize the touchscreen driver
  *
- * This funtion uses to initializes the synaptics
+ * This function uses to initializes the synaptics
  * touchscreen driver and returns integer.
  */
 static int __init synaptics_rmi4_init(void)
@@ -1158,7 +1158,7 @@ static int __init synaptics_rmi4_init(void)
 /**
  * synaptics_rmi4_exit() - De-initialize the touchscreen driver
  *
- * This funtion uses to de-initialize the synaptics
+ * This function uses to de-initialize the synaptics
  * touchscreen driver and returns none.
  */
 static void __exit synaptics_rmi4_exit(void)
diff --git a/drivers/staging/tidspbridge/core/_tiomap.h b/drivers/staging/tidspbridge/core/_tiomap.h
index 1e0273e50d2b..7cb587103975 100644
--- a/drivers/staging/tidspbridge/core/_tiomap.h
+++ b/drivers/staging/tidspbridge/core/_tiomap.h
@@ -366,7 +366,7 @@ extern s32 dsp_debug;
  *  ======== sm_interrupt_dsp ========
  *  Purpose:
  *      Set interrupt value & send an interrupt to the DSP processor(s).
- *      This is typicaly used when mailbox interrupt mechanisms allow data
+ *      This is typically used when mailbox interrupt mechanisms allow data
  *      to be associated with interrupt such as for OMAP's CMD/DATA regs.
  *  Parameters:
  *      dev_context:    Handle to Bridge driver defined device info.
diff --git a/drivers/staging/tidspbridge/core/chnl_sm.c b/drivers/staging/tidspbridge/core/chnl_sm.c
index 8381130e1460..6d66e7d0fba8 100644
--- a/drivers/staging/tidspbridge/core/chnl_sm.c
+++ b/drivers/staging/tidspbridge/core/chnl_sm.c
@@ -578,7 +578,7 @@ int bridge_chnl_get_ioc(struct chnl_object *chnl_obj, u32 timeout,
 		} else if (stat_sync == -EPERM) {
 			/* This can occur when the user mode thread is
 			 * aborted (^C), or when _VWIN32_WaitSingleObject()
-			 * fails due to unkown causes. */
+			 * fails due to unknown causes. */
 			/* Even though Wait failed, there may be something in
 			 * the Q: */
 			if (list_empty(&pchnl->io_completions)) {
diff --git a/drivers/staging/tidspbridge/dynload/cload.c b/drivers/staging/tidspbridge/dynload/cload.c
index 390040984e03..5cecd237e3f6 100644
--- a/drivers/staging/tidspbridge/dynload/cload.c
+++ b/drivers/staging/tidspbridge/dynload/cload.c
@@ -718,7 +718,7 @@ static void dload_symbols(struct dload_state *dlthis)
 	 * as a temporary for .dllview record construction.
 	 * Allocate storage for the whole table.  Add 1 to the section count
 	 * in case a trampoline section is auto-generated as well as the
-	 * size of the trampoline section name so DLLView doens't get lost.
+	 * size of the trampoline section name so DLLView does't get lost.
 	 */
 
 	siz = sym_count * sizeof(struct local_symbol);
diff --git a/drivers/staging/tidspbridge/hw/hw_mmu.c b/drivers/staging/tidspbridge/hw/hw_mmu.c
index 014f5d5293ae..c214df9b205e 100644
--- a/drivers/staging/tidspbridge/hw/hw_mmu.c
+++ b/drivers/staging/tidspbridge/hw/hw_mmu.c
@@ -59,7 +59,7 @@ enum hw_mmu_page_size_t {
  * RETURNS:
  *
  *       Type		: hw_status
- *       Description     : 0		 -- No errors occured
+ *       Description     : 0		 -- No errors occurred
  *			 RET_BAD_NULL_PARAM     -- A Pointer
  *						Paramater was set to NULL
  *
@@ -102,7 +102,7 @@ static hw_status mmu_flush_entry(const void __iomem *base_address);
  * RETURNS:
  *
  *       Type	    	: hw_status
- *       Description     : 0		 -- No errors occured
+ *       Description     : 0		 -- No errors occurred
  *			 RET_BAD_NULL_PARAM     -- A Pointer Paramater
  *						   was set to NULL
  *			 RET_PARAM_OUT_OF_RANGE -- Input Parameter out
@@ -147,7 +147,7 @@ static hw_status mmu_set_cam_entry(const void __iomem *base_address,
  * RETURNS:
  *
  *       Type	    	: hw_status
- *       Description     : 0		 -- No errors occured
+ *       Description     : 0		 -- No errors occurred
  *			 RET_BAD_NULL_PARAM     -- A Pointer Paramater
  *							was set to NULL
  *			 RET_PARAM_OUT_OF_RANGE -- Input Parameter
diff --git a/drivers/staging/tidspbridge/include/dspbridge/_chnl_sm.h b/drivers/staging/tidspbridge/include/dspbridge/_chnl_sm.h
index d60e25258020..6e7ab4fd8c39 100644
--- a/drivers/staging/tidspbridge/include/dspbridge/_chnl_sm.h
+++ b/drivers/staging/tidspbridge/include/dspbridge/_chnl_sm.h
@@ -144,7 +144,7 @@ struct chnl_object {
 	s8 chnl_mode;		/* Chnl mode and attributes */
 	/* Chnl I/O completion event (user mode) */
 	void *user_event;
-	/* Abstract syncronization object */
+	/* Abstract synchronization object */
 	struct sync_object *sync_event;
 	u32 process;		/* Process which created this channel */
 	u32 cb_arg;		/* Argument to use with callback */
@@ -156,7 +156,7 @@ struct chnl_object {
 	struct list_head io_completions;
 	struct list_head free_packets_list;	/* List of free Irps */
 	struct ntfy_object *ntfy_obj;
-	u32 bytes_moved;	/* Total number of bytes transfered */
+	u32 bytes_moved;	/* Total number of bytes transferred */
 
 	/* For DSP-DMA */
 
diff --git a/drivers/staging/tidspbridge/include/dspbridge/clk.h b/drivers/staging/tidspbridge/include/dspbridge/clk.h
index b23950323421..685341c50693 100644
--- a/drivers/staging/tidspbridge/include/dspbridge/clk.h
+++ b/drivers/staging/tidspbridge/include/dspbridge/clk.h
@@ -55,7 +55,7 @@ extern void dsp_clk_exit(void);
  *      Initializes private state of CLK module.
  *  Parameters:
  *  Returns:
- *      TRUE if initialized; FALSE if error occured.
+ *      TRUE if initialized; FALSE if error occurred.
  *  Requires:
  *  Ensures:
  *      CLK initialized.
@@ -71,7 +71,7 @@ void dsp_gpt_wait_overflow(short int clk_id, unsigned int load);
  *  Parameters:
  *  Returns:
  *      0:	Success.
- *	-EPERM:	Error occured while enabling the clock.
+ *	-EPERM:	Error occurred while enabling the clock.
  *  Requires:
  *  Ensures:
  */
@@ -86,7 +86,7 @@ u32 dsp_clock_enable_all(u32 dsp_per_clocks);
  *  Parameters:
  *  Returns:
  *      0:        Success.
- *      -EPERM:      Error occured while disabling the clock.
+ *      -EPERM:      Error occurred while disabling the clock.
  *  Requires:
  *  Ensures:
  */
diff --git a/drivers/staging/tidspbridge/include/dspbridge/cmm.h b/drivers/staging/tidspbridge/include/dspbridge/cmm.h
index 27a21b5f3ff0..aff22051cf57 100644
--- a/drivers/staging/tidspbridge/include/dspbridge/cmm.h
+++ b/drivers/staging/tidspbridge/include/dspbridge/cmm.h
@@ -190,7 +190,7 @@ extern int cmm_get_info(struct cmm_object *hcmm_mgr,
  *      Initializes private state of CMM module.
  *  Parameters:
  *  Returns:
- *      TRUE if initialized; FALSE if error occured.
+ *      TRUE if initialized; FALSE if error occurred.
  *  Requires:
  *  Ensures:
  *      CMM initialized.
diff --git a/drivers/staging/tidspbridge/include/dspbridge/cod.h b/drivers/staging/tidspbridge/include/dspbridge/cod.h
index 53bd4bb8b0bb..cb684c11b302 100644
--- a/drivers/staging/tidspbridge/include/dspbridge/cod.h
+++ b/drivers/staging/tidspbridge/include/dspbridge/cod.h
@@ -249,7 +249,7 @@ extern int cod_get_sym_value(struct cod_manager *cod_mgr_obj,
  *  Parameters:
  *      None.
  *  Returns:
- *      TRUE if initialized; FALSE if error occured.
+ *      TRUE if initialized; FALSE if error occurred.
  *  Requires:
  *  Ensures:
  *      A requirement for each of the other public COD functions.
diff --git a/drivers/staging/tidspbridge/include/dspbridge/dev.h b/drivers/staging/tidspbridge/include/dspbridge/dev.h
index f41e4783157f..f92b4be0b413 100644
--- a/drivers/staging/tidspbridge/include/dspbridge/dev.h
+++ b/drivers/staging/tidspbridge/include/dspbridge/dev.h
@@ -497,7 +497,7 @@ extern void dev_exit(void);
  *      Initialize DEV's private state, keeping a reference count on each call.
  *  Parameters:
  *  Returns:
- *      TRUE if initialized; FALSE if error occured.
+ *      TRUE if initialized; FALSE if error occurred.
  *  Requires:
  *  Ensures:
  *      TRUE: A requirement for the other public DEV functions.
diff --git a/drivers/staging/tidspbridge/include/dspbridge/drv.h b/drivers/staging/tidspbridge/include/dspbridge/drv.h
index 25ef1a2c58eb..9cdbd955dce9 100644
--- a/drivers/staging/tidspbridge/include/dspbridge/drv.h
+++ b/drivers/staging/tidspbridge/include/dspbridge/drv.h
@@ -154,7 +154,7 @@ struct process_context {
  *  Parameters:
  *      drv_obj:        Location to store created DRV Object handle.
  *  Returns:
- *      0:        Sucess
+ *      0:        Success
  *      -ENOMEM:    Failed in Memory allocation
  *      -EPERM:      General Failure
  *  Requires:
@@ -170,7 +170,7 @@ struct process_context {
  *      There is one Driver Object for the Driver representing
  *      the driver itself. It contains the list of device
  *      Objects and the list of Device Extensions in the system.
- *      Also it can hold other neccessary
+ *      Also it can hold other necessary
  *      information in its storage area.
  */
 extern int drv_create(struct drv_object **drv_obj);
@@ -180,7 +180,7 @@ extern int drv_create(struct drv_object **drv_obj);
  *  Purpose:
  *      destroys the Dev Object list, DrvExt list
  *      and destroy the DRV object
- *      Called upon driver unLoading.or unsuccesful loading of the driver.
+ *      Called upon driver unLoading.or unsuccessful loading of the driver.
  *  Parameters:
  *      driver_obj:     Handle to Driver object .
  *  Returns:
diff --git a/drivers/staging/tidspbridge/include/dspbridge/dspdefs.h b/drivers/staging/tidspbridge/include/dspbridge/dspdefs.h
index c2ba26c09308..ed32bf383132 100644
--- a/drivers/staging/tidspbridge/include/dspbridge/dspdefs.h
+++ b/drivers/staging/tidspbridge/include/dspbridge/dspdefs.h
@@ -52,7 +52,7 @@ struct bridge_dev_context;
  *      dev_ctxt:    Handle to Bridge driver defined device context.
  *  Returns:
  *      0:        Success.
- *      -ETIMEDOUT:  Timeout occured waiting for a response from hardware.
+ *      -ETIMEDOUT:  Timeout occurred waiting for a response from hardware.
  *      -EPERM:      Other, unspecified error.
  *  Requires:
  *      dev_ctxt != NULL
@@ -91,7 +91,7 @@ typedef int(*fxn_brd_setstate) (struct bridge_dev_context
  *      dsp_addr:       DSP address at which to start execution.
  *  Returns:
  *      0:        Success.
- *      -ETIMEDOUT:  Timeout occured waiting for a response from hardware.
+ *      -ETIMEDOUT:  Timeout occurred waiting for a response from hardware.
  *      -EPERM:      Other, unspecified error.
  *  Requires:
  *      dev_ctxt != NULL
@@ -142,7 +142,7 @@ typedef int(*fxn_brd_memcopy) (struct bridge_dev_context
  *      mem_type:       Memory space on DSP to which to transfer.
  *  Returns:
  *      0:        Success.
- *      -ETIMEDOUT:  Timeout occured waiting for a response from hardware.
+ *      -ETIMEDOUT:  Timeout occurred waiting for a response from hardware.
  *      -EPERM:      Other, unspecified error.
  *  Requires:
  *      dev_ctxt != NULL;
@@ -205,7 +205,7 @@ typedef int(*fxn_brd_memunmap) (struct bridge_dev_context
  *      dev_ctxt:    Handle to Bridge driver defined device context.
  *  Returns:
  *      0:        Success.
- *      -ETIMEDOUT:  Timeout occured waiting for a response from hardware.
+ *      -ETIMEDOUT:  Timeout occurred waiting for a response from hardware.
  *      -EPERM:      Other, unspecified error.
  *  Requires:
  *      dev_ctxt != NULL
@@ -248,7 +248,7 @@ typedef int(*fxn_brd_status) (struct bridge_dev_context *dev_ctxt,
  *      mem_type:       Memory space on DSP from which to transfer.
  *  Returns:
  *      0:        Success.
- *      -ETIMEDOUT:  Timeout occured waiting for a response from hardware.
+ *      -ETIMEDOUT:  Timeout occurred waiting for a response from hardware.
  *      -EPERM:      Other, unspecified error.
  *  Requires:
  *      dev_ctxt != NULL;
@@ -274,7 +274,7 @@ typedef int(*fxn_brd_read) (struct bridge_dev_context *dev_ctxt,
  *      mem_type:       Memory space on DSP to which to transfer.
  *  Returns:
  *      0:        Success.
- *      -ETIMEDOUT:  Timeout occured waiting for a response from hardware.
+ *      -ETIMEDOUT:  Timeout occurred waiting for a response from hardware.
  *      -EPERM:      Other, unspecified error.
  *  Requires:
  *      dev_ctxt != NULL;
@@ -601,7 +601,7 @@ typedef int(*fxn_chnl_getmgrinfo) (struct chnl_mgr
  *  Returns:
  *      0:            Success;
  *      -EFAULT:        Invalid chnl_obj.
- *      -ETIMEDOUT: Timeout occured before channel could be idled.
+ *      -ETIMEDOUT: Timeout occurred before channel could be idled.
  *  Requires:
  *  Ensures:
  */
diff --git a/drivers/staging/tidspbridge/include/dspbridge/mgr.h b/drivers/staging/tidspbridge/include/dspbridge/mgr.h
index e506c4d49472..47b0318430e1 100644
--- a/drivers/staging/tidspbridge/include/dspbridge/mgr.h
+++ b/drivers/staging/tidspbridge/include/dspbridge/mgr.h
@@ -176,7 +176,7 @@ extern void mgr_exit(void);
  *      mgr_handle:     Handle to the Manager Object
  *      dcd_handle:     Ptr to receive the DCD Handle.
  *  Returns:
- *      0:        Sucess
+ *      0:        Success
  *      -EPERM:      Failure to get the Handle
  *  Requires:
  *      MGR is initialized.
@@ -195,7 +195,7 @@ extern int mgr_get_dcd_handle(struct mgr_object
  *      call. Initializes the DCD.
  *  Parameters:
  *  Returns:
- *      TRUE if initialized; FALSE if error occured.
+ *      TRUE if initialized; FALSE if error occurred.
  *  Requires:
  *  Ensures:
  *      TRUE: A requirement for the other public MGR functions.
diff --git a/drivers/staging/tidspbridge/include/dspbridge/node.h b/drivers/staging/tidspbridge/include/dspbridge/node.h
index 53da0ef483c8..16371d818e3d 100644
--- a/drivers/staging/tidspbridge/include/dspbridge/node.h
+++ b/drivers/staging/tidspbridge/include/dspbridge/node.h
@@ -44,7 +44,7 @@
  *      -ESPIPE:        iAlg functions not found for a DAIS node.
  *      -EDOM:         attr_in != NULL and attr_in->prio out of
  *                          range.
- *      -EPERM:          A failure occured, unable to allocate node.
+ *      -EPERM:          A failure occurred, unable to allocate node.
  *      -EBADR:    Proccessor is not in the running state.
  *  Requires:
  *      node_init(void) called.
diff --git a/drivers/staging/tidspbridge/include/dspbridge/proc.h b/drivers/staging/tidspbridge/include/dspbridge/proc.h
index 5e09fd165d9d..f00dffd51989 100644
--- a/drivers/staging/tidspbridge/include/dspbridge/proc.h
+++ b/drivers/staging/tidspbridge/include/dspbridge/proc.h
@@ -89,7 +89,7 @@ extern int proc_auto_start(struct cfg_devnode *dev_node_obj,
  *  Returns:
  *      0     :       SUCCESS
  *      -EFAULT :       Invalid processor handle.
- *      -ETIME:       A Timeout Occured before the Control information
+ *      -ETIME:       A Timeout Occurred before the Control information
  *			  could be sent.
  *      -EPERM   :       General Failure.
  *  Requires:
@@ -169,7 +169,7 @@ extern int proc_enum_nodes(void *hprocessor,
  *      0     :       Success.
  *      -EFAULT :       Invalid processor handle.
  *      -EBADR:    The processor is not in the PROC_RUNNING state.
- *      -ETIME:       A timeout occured before the DSP responded to the
+ *      -ETIME:       A timeout occurred before the DSP responded to the
  *			  querry.
  *      -EPERM   :       Unable to get Resource Information
  *  Requires:
@@ -229,7 +229,7 @@ extern int proc_get_dev_object(void *hprocessor,
  *      call.
  *  Parameters:
  *  Returns:
- *      TRUE if initialized; FALSE if error occured.
+ *      TRUE if initialized; FALSE if error occurred.
  *  Requires:
  *  Ensures:
  *      TRUE: A requirement for the other public PROC functions.
diff --git a/drivers/staging/tidspbridge/include/dspbridge/pwr.h b/drivers/staging/tidspbridge/include/dspbridge/pwr.h
index 5e3ab2123aaa..0fb066488da9 100644
--- a/drivers/staging/tidspbridge/include/dspbridge/pwr.h
+++ b/drivers/staging/tidspbridge/include/dspbridge/pwr.h
@@ -46,7 +46,7 @@
  *      0:            Success.
  *      0: Success, but the DSP was already asleep.
  *      -EINVAL:    The specified sleep_code is not supported.
- *      -ETIME:       A timeout occured while waiting for DSP sleep
+ *      -ETIME:       A timeout occurred while waiting for DSP sleep
  *                          confirmation.
  *      -EPERM:          General failure, unable to send sleep command to
  *                          the DSP.
@@ -67,7 +67,7 @@ extern int pwr_sleep_dsp(const u32 sleep_code, const u32 timeout);
  *  Returns:
  *      0:            Success.
  *      0:  Success, but the DSP was already awake.
- *      -ETIME:       A timeout occured while waiting for wake
+ *      -ETIME:       A timeout occurred while waiting for wake
  *                          confirmation.
  *      -EPERM:          General failure, unable to send wake command to
  *                          the DSP.
@@ -85,7 +85,7 @@ extern int pwr_wake_dsp(const u32 timeout);
  *  Returns:
  *      0:            Success.
  *      0:  Success, but the DSP was already awake.
- *      -ETIME:       A timeout occured while waiting for wake
+ *      -ETIME:       A timeout occurred while waiting for wake
  *                          confirmation.
  *      -EPERM:          General failure, unable to send wake command to
  *                          the DSP.
@@ -103,7 +103,7 @@ extern int pwr_pm_pre_scale(u16 voltage_domain, u32 level);
  *  Returns:
  *      0:            Success.
  *      0:  Success, but the DSP was already awake.
- *      -ETIME:       A timeout occured while waiting for wake
+ *      -ETIME:       A timeout occurred while waiting for wake
  *                          confirmation.
  *      -EPERM:          General failure, unable to send wake command to
  *                          the DSP.
diff --git a/drivers/staging/tidspbridge/pmgr/dev.c b/drivers/staging/tidspbridge/pmgr/dev.c
index 9a38d86a84a0..522810bc7427 100644
--- a/drivers/staging/tidspbridge/pmgr/dev.c
+++ b/drivers/staging/tidspbridge/pmgr/dev.c
@@ -787,7 +787,7 @@ int dev_notify_clients(struct dev_object *dev_obj, u32 ret)
 
 	/*
 	 * FIXME: this code needs struct proc_object to have a list_head
-	 * at the begining. If not, this can go horribly wrong.
+	 * at the beginning. If not, this can go horribly wrong.
 	 */
 	list_for_each(curr, &dev_obj->proc_list)
 		proc_notify_clients((void *)curr, ret);
@@ -810,7 +810,7 @@ int dev_remove_device(struct cfg_devnode *dev_node_obj)
 	if (!dev_node_obj)
 		status = -EFAULT;
 
-	/* Retrieve the device object handle originaly stored with
+	/* Retrieve the device object handle originally stored with
 	 * the dev_node: */
 	if (!status) {
 		/* check the device string and then store dev object */
@@ -986,7 +986,7 @@ int dev_insert_proc_object(struct dev_object *hdev_obj,
 	/* Add DevObject to tail. */
 	/*
 	 * FIXME: this code needs struct proc_object to have a list_head
-	 * at the begining. If not, this can go horribly wrong.
+	 * at the beginning. If not, this can go horribly wrong.
 	 */
 	list_add_tail((struct list_head *)proc_obj, &dev_obj->proc_list);
 
diff --git a/drivers/staging/tidspbridge/rmgr/drv.c b/drivers/staging/tidspbridge/rmgr/drv.c
index 8c88583364eb..db8215f540d8 100644
--- a/drivers/staging/tidspbridge/rmgr/drv.c
+++ b/drivers/staging/tidspbridge/rmgr/drv.c
@@ -609,7 +609,7 @@ int drv_request_resources(u32 dw_context, u32 *dev_node_strg)
 	DBC_REQUIRE(dev_node_strg != NULL);
 
 	/*
-	 *  Allocate memory to hold the string. This will live untill
+	 *  Allocate memory to hold the string. This will live until
 	 *  it is freed in the Release resources. Update the driver object
 	 *  list.
 	 */
diff --git a/drivers/staging/tidspbridge/rmgr/nldr.c b/drivers/staging/tidspbridge/rmgr/nldr.c
index fb5c2ba01d47..0e70cba15ebc 100644
--- a/drivers/staging/tidspbridge/rmgr/nldr.c
+++ b/drivers/staging/tidspbridge/rmgr/nldr.c
@@ -57,9 +57,9 @@
  *   uuuuuuuu|fueeeeee|fudddddd|fucccccc|
  *  where
  *      u = unused
- *      cccccc = prefered/required dynamic mem segid for create phase data/code
- *      dddddd = prefered/required dynamic mem segid for delete phase data/code
- *      eeeeee = prefered/req. dynamic mem segid for execute phase data/code
+ *      cccccc = preferred/required dynamic mem segid for create phase data/code
+ *      dddddd = preferred/required dynamic mem segid for delete phase data/code
+ *      eeeeee = preferred/req. dynamic mem segid for execute phase data/code
  *      f = flag indicating if memory is preferred or required:
  *	  f = 1 if required, f = 0 if preferred.
  *
diff --git a/drivers/staging/tidspbridge/rmgr/proc.c b/drivers/staging/tidspbridge/rmgr/proc.c
index c4e5c4e0d71c..242dd1399996 100644
--- a/drivers/staging/tidspbridge/rmgr/proc.c
+++ b/drivers/staging/tidspbridge/rmgr/proc.c
@@ -1670,7 +1670,7 @@ int proc_stop(void *hprocessor)
 	if (!status) {
 		dev_dbg(bridge, "%s: processor in standby mode\n", __func__);
 		p_proc_object->proc_state = PROC_STOPPED;
-		/* Destory the Node Manager, msg_ctrl Manager */
+		/* Destroy the Node Manager, msg_ctrl Manager */
 		if (!(dev_destroy2(p_proc_object->dev_obj))) {
 			/* Destroy the msg_ctrl by calling msg_delete */
 			dev_get_msg_mgr(p_proc_object->dev_obj, &hmsg_mgr);
@@ -1827,7 +1827,7 @@ static int proc_monitor(struct proc_object *proc_obj)
 
 	/* This is needed only when Device is loaded when it is
 	 * already 'ACTIVE' */
-	/* Destory the Node Manager, msg_ctrl Manager */
+	/* Destroy the Node Manager, msg_ctrl Manager */
 	if (!dev_destroy2(proc_obj->dev_obj)) {
 		/* Destroy the msg_ctrl by calling msg_delete */
 		dev_get_msg_mgr(proc_obj->dev_obj, &hmsg_mgr);
diff --git a/drivers/staging/tm6000/tm6000-video.c b/drivers/staging/tm6000/tm6000-video.c
index c80a316d9d8f..17db6684abbe 100644
--- a/drivers/staging/tm6000/tm6000-video.c
+++ b/drivers/staging/tm6000/tm6000-video.c
@@ -182,7 +182,7 @@ static inline void get_next_buf(struct tm6000_dmaqueue *dma_q,
 	if (!buf)
 		return;
 
-	/* Cleans up buffer - Usefull for testing for frame/URB loss */
+	/* Cleans up buffer - Useful for testing for frame/URB loss */
 	outp = videobuf_to_vmalloc(&(*buf)->vb);
 
 	return;
diff --git a/drivers/staging/tty/cd1865.h b/drivers/staging/tty/cd1865.h
index 9940966e7a1d..8c2ad654b79d 100644
--- a/drivers/staging/tty/cd1865.h
+++ b/drivers/staging/tty/cd1865.h
@@ -9,7 +9,7 @@
  *      Please DO contact io8-linux@specialix.co.uk if you require
  *      support.
  *
- *      This driver was developped in the BitWizard linux device
+ *      This driver was developed in the BitWizard linux device
  *      driver service. If you require a linux device driver for your
  *      product, please contact devices@BitWizard.nl for a quote.
  *
diff --git a/drivers/staging/tty/epca.c b/drivers/staging/tty/epca.c
index 7ad3638967ae..7f1369e5b418 100644
--- a/drivers/staging/tty/epca.c
+++ b/drivers/staging/tty/epca.c
@@ -7,7 +7,7 @@
 	** This driver is no longer supported by Digi **
 
 	Much of this design and code came from epca.c which was
-	copyright (C) 1994, 1995 Troy De Jongh, and subsquently
+	copyright (C) 1994, 1995 Troy De Jongh, and subsequently
 	modified by David Nugent, Christoph Lameter, Mike McLagan.
 
 	This program is free software; you can redistribute it and/or modify
@@ -471,7 +471,7 @@ static void shutdown(struct channel *ch, struct tty_struct *tty)
 	memoff(ch);
 
 	/*
-	 * The channel has officialy been closed. The next time it is opened it
+	 * The channel has officially been closed. The next time it is opened it
 	 * will have to reinitialized. Set a flag to indicate this.
 	 */
 	/* Prevent future Digi programmed interrupts from coming active */
@@ -975,7 +975,7 @@ static int __init pc_init(void)
 
 	/*
 	 * Note : If lilo was used to configure the driver and the ignore
-	 * epcaconfig option was choosen (digiepca=2) then nbdevs and num_cards
+	 * epcaconfig option was chosen (digiepca=2) then nbdevs and num_cards
 	 * will equal 0 at this point. This is okay; PCI cards will still be
 	 * picked up if detected.
 	 */
@@ -1230,14 +1230,14 @@ static void post_fep_init(unsigned int crd)
 	memaddr = bd->re_map_membase;
 
 	/*
-	 * The below assignment will set bc to point at the BEGINING of the
+	 * The below assignment will set bc to point at the BEGINNING of the
 	 * cards channel structures. For 1 card there will be between 8 and 64
 	 * of these structures.
 	 */
 	bc = memaddr + CHANSTRUCT;
 
 	/*
-	 * The below assignment will set gd to point at the BEGINING of global
+	 * The below assignment will set gd to point at the BEGINNING of global
 	 * memory address 0xc00. The first data in that global memory actually
 	 * starts at address 0xc1a. The command in pointer begins at 0xd10.
 	 */
@@ -1492,7 +1492,7 @@ static void doevent(int crd)
 		/*
 		 * The two assignments below get the current modem status
 		 * (mstat) and the previous modem status (lstat). These are
-		 * useful becuase an event could signal a change in modem
+		 * useful because an event could signal a change in modem
 		 * signals itself.
 		 */
 		mstat = readb(eventbuf + 2);
@@ -1897,7 +1897,7 @@ static void receive_data(struct channel *ch, struct tty_struct *tty)
 		/*
 		 * Even if head has wrapped around only report the amount of
 		 * data to be equal to the size - tail. Remember memcpy can't
-		 * automaticly wrap around the receive buffer.
+		 * automatically wrap around the receive buffer.
 		 */
 		dataToRead = (wrapgap < bytesAvailable) ? wrapgap
 							: bytesAvailable;
@@ -2543,7 +2543,7 @@ static void __init epca_setup(char *str, int *ints)
 					break;
 			/*
 			 * If the index incremented above refers to a
-			 * legitamate board type set it here.
+			 * legitimate board type set it here.
 			 */
 			if (index < EPCA_NUM_TYPES)
 				board.type = loop;
diff --git a/drivers/staging/tty/ip2/i2hw.h b/drivers/staging/tty/ip2/i2hw.h
index c0ba6c05f0cd..8df2f487217a 100644
--- a/drivers/staging/tty/ip2/i2hw.h
+++ b/drivers/staging/tty/ip2/i2hw.h
@@ -335,7 +335,7 @@ be off by a factor of five. The important point is that the first command reset
 in fact generates a reset pulse on the board. This pulse is guaranteed to last
 less than 10 milliseconds. The additional delay ensures the 1400 has had the
 chance to respond sufficiently to the first reset. Why not a longer delay? Much
-more than 50 milliseconds gets to be noticable, but the board would still work.
+more than 50 milliseconds gets to be noticeable, but the board would still work.
 
 Once all 16 bytes of the Power-on Reset Message have been read, the bootstrap
 firmware is ready to receive loadware.
@@ -399,7 +399,7 @@ typedef union _porStr		// "por" stands for Power On Reset
 		// expandable products must report a MAP of available channels. Since 
 		// each UART supports four ports, we represent each UART found by a
 		// single bit. Using two bytes to supply the mapping information we
-		// report the presense or absense of up to 16 UARTS, or 64 ports in
+		// report the presence or absence of up to 16 UARTS, or 64 ports in
 		// steps of 4 ports. For -IIEX products, the ports are numbered
 		// starting at the box closest to the controller in the "chain".
 
diff --git a/drivers/staging/tty/ip2/i2lib.c b/drivers/staging/tty/ip2/i2lib.c
index 0d10b89218ed..13a3caba85f2 100644
--- a/drivers/staging/tty/ip2/i2lib.c
+++ b/drivers/staging/tty/ip2/i2lib.c
@@ -821,7 +821,7 @@ i2GetStatus(i2ChanStrPtr pCh, int resetBits)
 //
 // Description:
 // Strips data from the input buffer and writes it to pDest. If there is a
-// collosal blunder, (invalid structure pointers or the like), returns -1.
+// colossal blunder, (invalid structure pointers or the like), returns -1.
 // Otherwise, returns the number of bytes read.
 //******************************************************************************
 static int
@@ -909,7 +909,7 @@ i2Input_exit:
 // Returns:    Number of bytes stripped, or -1 for error
 //
 // Description:
-// Strips any data from the input buffer. If there is a collosal blunder,
+// Strips any data from the input buffer. If there is a colossal blunder,
 // (invalid structure pointers or the like), returns -1. Otherwise, returns the
 // number of bytes stripped.
 //******************************************************************************
@@ -963,7 +963,7 @@ i2InputFlush(i2ChanStrPtr pCh)
 // Returns:    Number of bytes available, or -1 for error
 //
 // Description:
-// If there is a collosal blunder, (invalid structure pointers or the like),
+// If there is a colossal blunder, (invalid structure pointers or the like),
 // returns -1. Otherwise, returns the number of bytes stripped. Otherwise,
 // returns the number of bytes available in the buffer.
 //******************************************************************************
@@ -1001,7 +1001,7 @@ i2InputAvailable(i2ChanStrPtr pCh)
 //
 // Description:
 // Queues the data at pSource to be sent as data packets to the board. If there
-// is a collosal blunder, (invalid structure pointers or the like), returns -1.
+// is a colossal blunder, (invalid structure pointers or the like), returns -1.
 // Otherwise, returns the number of bytes written. What if there is not enough
 // room for all the data? If pCh->channelOptions & CO_NBLOCK_WRITE is set, then
 // we transfer as many characters as we can now, then return. If this bit is
diff --git a/drivers/staging/tty/ip2/ip2main.c b/drivers/staging/tty/ip2/ip2main.c
index ea7a8fb08283..ba074fbb4ce2 100644
--- a/drivers/staging/tty/ip2/ip2main.c
+++ b/drivers/staging/tty/ip2/ip2main.c
@@ -1824,7 +1824,7 @@ ip2_flush_chars( PTTY tty )
 //		ip2trace (CHANN, ITRC_PUTC, 10, 1, strip );
 
 		//
-		// We may need to restart i2Output if it does not fullfill this request
+		// We may need to restart i2Output if it does not fulfill this request
 		//
 		strip = i2Output( pCh, pCh->Pbuf, pCh->Pbuf_stuff);
 		if ( strip != pCh->Pbuf_stuff ) {
diff --git a/drivers/staging/tty/specialix.c b/drivers/staging/tty/specialix.c
index 17a1be536a46..cb24c6d999db 100644
--- a/drivers/staging/tty/specialix.c
+++ b/drivers/staging/tty/specialix.c
@@ -9,7 +9,7 @@
  *      support. But please read the documentation (specialix.txt)
  *      first.
  *
- *      This driver was developped in the BitWizard linux device
+ *      This driver was developed in the BitWizard linux device
  *      driver service. If you require a linux device driver for your
  *      product, please contact devices@BitWizard.nl for a quote.
  *
@@ -978,7 +978,7 @@ static void sx_change_speed(struct specialix_board *bp,
 	spin_lock_irqsave(&bp->lock, flags);
 	sx_out(bp, CD186x_CAR, port_No(port));
 
-	/* The Specialix board doens't implement the RTS lines.
+	/* The Specialix board does't implement the RTS lines.
 	   They are used to set the IRQ level. Don't touch them. */
 	if (sx_crtscts(tty))
 		port->MSVR = MSVR_DTR | (sx_in(bp, CD186x_MSVR) & MSVR_RTS);
diff --git a/drivers/staging/tty/specialix_io8.h b/drivers/staging/tty/specialix_io8.h
index c63005274d9b..1215d7e2cb37 100644
--- a/drivers/staging/tty/specialix_io8.h
+++ b/drivers/staging/tty/specialix_io8.h
@@ -10,7 +10,7 @@
  *      Please DO contact io8-linux@specialix.co.uk if you require
  *      support.
  *
- *      This driver was developped in the BitWizard linux device
+ *      This driver was developed in the BitWizard linux device
  *      driver service. If you require a linux device driver for your
  *      product, please contact devices@BitWizard.nl for a quote.
  *
@@ -79,7 +79,7 @@ more than a few  PCI versions of the card. */
 
 #define SPECIALIX_MAGIC		0x0907
 
-#define SX_CCR_TIMEOUT 10000   /* CCR timeout. You may need to wait upto
+#define SX_CCR_TIMEOUT 10000   /* CCR timeout. You may need to wait up to
                                   10 milliseconds before the internal
                                   processor is available again after
                                   you give it a command */
diff --git a/drivers/staging/usbip/stub_dev.c b/drivers/staging/usbip/stub_dev.c
index 8214c353d9f5..bce7d039346c 100644
--- a/drivers/staging/usbip/stub_dev.c
+++ b/drivers/staging/usbip/stub_dev.c
@@ -220,8 +220,10 @@ static void stub_shutdown_connection(struct usbip_device *ud)
 	}
 
 	/* 1. stop threads */
-	kthread_stop(ud->tcp_rx);
-	kthread_stop(ud->tcp_tx);
+	if (ud->tcp_rx && !task_is_dead(ud->tcp_rx))
+		kthread_stop(ud->tcp_rx);
+	if (ud->tcp_tx && !task_is_dead(ud->tcp_tx))
+		kthread_stop(ud->tcp_tx);
 
 	/* 2. close the socket */
 	/*
diff --git a/drivers/staging/usbip/stub_rx.c b/drivers/staging/usbip/stub_rx.c
index 6445f12cb4fd..51fbd0986475 100644
--- a/drivers/staging/usbip/stub_rx.c
+++ b/drivers/staging/usbip/stub_rx.c
@@ -171,33 +171,23 @@ static int tweak_set_configuration_cmd(struct urb *urb)
 
 static int tweak_reset_device_cmd(struct urb *urb)
 {
-	struct usb_ctrlrequest *req;
-	__u16 value;
-	__u16 index;
-	int ret;
-
-	req = (struct usb_ctrlrequest *) urb->setup_packet;
-	value = le16_to_cpu(req->wValue);
-	index = le16_to_cpu(req->wIndex);
-
-	usbip_uinfo("reset_device (port %d) to %s\n", index,
-						dev_name(&urb->dev->dev));
+	struct stub_priv *priv = (struct stub_priv *) urb->context;
+	struct stub_device *sdev = priv->sdev;
 
-	/* all interfaces should be owned by usbip driver, so just reset it.  */
-	ret = usb_lock_device_for_reset(urb->dev, NULL);
-	if (ret < 0) {
-		dev_err(&urb->dev->dev, "lock for reset\n");
-		return ret;
-	}
-
-	/* try to reset the device */
-	ret = usb_reset_device(urb->dev);
-	if (ret < 0)
-		dev_err(&urb->dev->dev, "device reset\n");
+	usbip_uinfo("reset_device %s\n", dev_name(&urb->dev->dev));
 
-	usb_unlock_device(urb->dev);
-
-	return ret;
+	/*
+	 * usb_lock_device_for_reset caused a deadlock: it causes the driver
+	 * to unbind. In the shutdown the rx thread is signalled to shut down
+	 * but this thread is pending in the usb_lock_device_for_reset.
+	 *
+	 * Instead queue the reset.
+	 *
+	 * Unfortunatly an existing usbip connection will be dropped due to
+	 * driver unbinding.
+	 */
+	usb_queue_reset_device(sdev->interface);
+	return 0;
 }
 
 /*
diff --git a/drivers/staging/usbip/stub_tx.c b/drivers/staging/usbip/stub_tx.c
index 5523f25998e6..64a52b26dcf6 100644
--- a/drivers/staging/usbip/stub_tx.c
+++ b/drivers/staging/usbip/stub_tx.c
@@ -170,7 +170,6 @@ static int stub_send_ret_submit(struct stub_device *sdev)
 	struct stub_priv *priv, *tmp;
 
 	struct msghdr msg;
-	struct kvec iov[3];
 	size_t txsize;
 
 	size_t total_size = 0;
@@ -180,28 +179,73 @@ static int stub_send_ret_submit(struct stub_device *sdev)
 		struct urb *urb = priv->urb;
 		struct usbip_header pdu_header;
 		void *iso_buffer = NULL;
+		struct kvec *iov = NULL;
+		int iovnum = 0;
 
 		txsize = 0;
 		memset(&pdu_header, 0, sizeof(pdu_header));
 		memset(&msg, 0, sizeof(msg));
-		memset(&iov, 0, sizeof(iov));
 
-		usbip_dbg_stub_tx("setup txdata urb %p\n", urb);
+		if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS)
+			iovnum = 2 + urb->number_of_packets;
+		else
+			iovnum = 2;
+
+		iov = kzalloc(iovnum * sizeof(struct kvec), GFP_KERNEL);
 
+		if (!iov) {
+			usbip_event_add(&sdev->ud, SDEV_EVENT_ERROR_MALLOC);
+			return -1;
+		}
+
+		iovnum = 0;
 
 		/* 1. setup usbip_header */
 		setup_ret_submit_pdu(&pdu_header, urb);
+		usbip_dbg_stub_tx("setup txdata seqnum: %d urb: %p\n",
+						pdu_header.base.seqnum, urb);
+		/*usbip_dump_header(pdu_header);*/
 		usbip_header_correct_endian(&pdu_header, 1);
 
-		iov[0].iov_base = &pdu_header;
-		iov[0].iov_len  = sizeof(pdu_header);
+		iov[iovnum].iov_base = &pdu_header;
+		iov[iovnum].iov_len  = sizeof(pdu_header);
+		iovnum++;
 		txsize += sizeof(pdu_header);
 
 		/* 2. setup transfer buffer */
-		if (usb_pipein(urb->pipe) && urb->actual_length > 0) {
-			iov[1].iov_base = urb->transfer_buffer;
-			iov[1].iov_len  = urb->actual_length;
+		if (usb_pipein(urb->pipe) &&
+				usb_pipetype(urb->pipe) != PIPE_ISOCHRONOUS &&
+					urb->actual_length > 0) {
+			iov[iovnum].iov_base = urb->transfer_buffer;
+			iov[iovnum].iov_len  = urb->actual_length;
+			iovnum++;
 			txsize += urb->actual_length;
+		} else if (usb_pipein(urb->pipe) &&
+				usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) {
+			/*
+			 * For isochronous packets: actual length is the sum of
+			 * the actual length of the individual, packets, but as
+			 * the packet offsets are not changed there will be
+			 * padding between the packets. To optimally use the
+			 * bandwidth the padding is not transmitted.
+			 */
+
+			int i;
+			for (i = 0; i < urb->number_of_packets; i++) {
+				iov[iovnum].iov_base = urb->transfer_buffer + urb->iso_frame_desc[i].offset;
+				iov[iovnum].iov_len = urb->iso_frame_desc[i].actual_length;
+				iovnum++;
+				txsize += urb->iso_frame_desc[i].actual_length;
+			}
+
+			if (txsize != sizeof(pdu_header) + urb->actual_length) {
+				dev_err(&sdev->interface->dev,
+					"actual length of urb (%d) does not match iso packet sizes (%d)\n",
+					urb->actual_length, txsize-sizeof(pdu_header));
+				kfree(iov);
+				usbip_event_add(&sdev->ud, SDEV_EVENT_ERROR_TCP);
+			   return -1;
+			}
 		}
 
 		/* 3. setup iso_packet_descriptor */
@@ -212,32 +256,34 @@ static int stub_send_ret_submit(struct stub_device *sdev)
 			if (!iso_buffer) {
 				usbip_event_add(&sdev->ud,
 						SDEV_EVENT_ERROR_MALLOC);
+				kfree(iov);
 				return -1;
 			}
 
-			iov[2].iov_base = iso_buffer;
-			iov[2].iov_len  = len;
+			iov[iovnum].iov_base = iso_buffer;
+			iov[iovnum].iov_len  = len;
 			txsize += len;
+			iovnum++;
 		}
 
-		ret = kernel_sendmsg(sdev->ud.tcp_socket, &msg, iov,
-				     3, txsize);
+		ret = kernel_sendmsg(sdev->ud.tcp_socket, &msg,
+						iov,  iovnum, txsize);
 		if (ret != txsize) {
 			dev_err(&sdev->interface->dev,
 				"sendmsg failed!, retval %d for %zd\n",
 				ret, txsize);
+			kfree(iov);
 			kfree(iso_buffer);
 			usbip_event_add(&sdev->ud, SDEV_EVENT_ERROR_TCP);
 			return -1;
 		}
 
+		kfree(iov);
 		kfree(iso_buffer);
-		usbip_dbg_stub_tx("send txdata\n");
 
 		total_size += txsize;
 	}
 
-
 	spin_lock_irqsave(&sdev->priv_lock, flags);
 
 	list_for_each_entry_safe(priv, tmp, &sdev->priv_free, list) {
diff --git a/drivers/staging/usbip/usbip_common.c b/drivers/staging/usbip/usbip_common.c
index 337abc48f714..7b1fe45bf7dd 100644
--- a/drivers/staging/usbip/usbip_common.c
+++ b/drivers/staging/usbip/usbip_common.c
@@ -333,10 +333,11 @@ void usbip_dump_header(struct usbip_header *pdu)
 		usbip_udbg("CMD_UNLINK: seq %u\n", pdu->u.cmd_unlink.seqnum);
 		break;
 	case USBIP_RET_SUBMIT:
-		usbip_udbg("RET_SUBMIT: st %d al %u sf %d ec %d\n",
+		usbip_udbg("RET_SUBMIT: st %d al %u sf %d #p %d ec %d\n",
 				pdu->u.ret_submit.status,
 				pdu->u.ret_submit.actual_length,
 				pdu->u.ret_submit.start_frame,
+				pdu->u.ret_submit.number_of_packets,
 				pdu->u.ret_submit.error_count);
 	case USBIP_RET_UNLINK:
 		usbip_udbg("RET_UNLINK: status %d\n", pdu->u.ret_unlink.status);
@@ -520,6 +521,7 @@ static void usbip_pack_ret_submit(struct usbip_header *pdu, struct urb *urb,
 		rpdu->status		= urb->status;
 		rpdu->actual_length	= urb->actual_length;
 		rpdu->start_frame	= urb->start_frame;
+		rpdu->number_of_packets = urb->number_of_packets;
 		rpdu->error_count	= urb->error_count;
 	} else {
 		/* vhci_rx.c */
@@ -527,6 +529,7 @@ static void usbip_pack_ret_submit(struct usbip_header *pdu, struct urb *urb,
 		urb->status		= rpdu->status;
 		urb->actual_length	= rpdu->actual_length;
 		urb->start_frame	= rpdu->start_frame;
+		urb->number_of_packets = rpdu->number_of_packets;
 		urb->error_count	= rpdu->error_count;
 	}
 }
@@ -595,11 +598,13 @@ static void correct_endian_ret_submit(struct usbip_header_ret_submit *pdu,
 		cpu_to_be32s(&pdu->status);
 		cpu_to_be32s(&pdu->actual_length);
 		cpu_to_be32s(&pdu->start_frame);
+		cpu_to_be32s(&pdu->number_of_packets);
 		cpu_to_be32s(&pdu->error_count);
 	} else {
 		be32_to_cpus(&pdu->status);
 		be32_to_cpus(&pdu->actual_length);
 		be32_to_cpus(&pdu->start_frame);
+		cpu_to_be32s(&pdu->number_of_packets);
 		be32_to_cpus(&pdu->error_count);
 	}
 }
@@ -725,6 +730,7 @@ int usbip_recv_iso(struct usbip_device *ud, struct urb *urb)
 	int size = np * sizeof(*iso);
 	int i;
 	int ret;
+	int total_length = 0;
 
 	if (!usb_pipeisoc(urb->pipe))
 		return 0;
@@ -754,19 +760,75 @@ int usbip_recv_iso(struct usbip_device *ud, struct urb *urb)
 		return -EPIPE;
 	}
 
+
 	for (i = 0; i < np; i++) {
 		iso = buff + (i * sizeof(*iso));
 
 		usbip_iso_pakcet_correct_endian(iso, 0);
 		usbip_pack_iso(iso, &urb->iso_frame_desc[i], 0);
+		total_length += urb->iso_frame_desc[i].actual_length;
 	}
 
 	kfree(buff);
 
+	if (total_length != urb->actual_length) {
+		dev_err(&urb->dev->dev,
+		  "total length of iso packets (%d) not equal to actual length of buffer (%d)\n",
+		  total_length, urb->actual_length);
+
+		if (ud->side == USBIP_STUB)
+			usbip_event_add(ud, SDEV_EVENT_ERROR_TCP);
+		else
+			usbip_event_add(ud, VDEV_EVENT_ERROR_TCP);
+
+		return -EPIPE;
+	}
+
 	return ret;
 }
 EXPORT_SYMBOL_GPL(usbip_recv_iso);
 
+/*
+ * This functions restores the padding which was removed for optimizing
+ * the bandwidth during transfer over tcp/ip
+ *
+ * buffer and iso packets need to be stored and be in propeper endian in urb
+ * before calling this function
+ */
+int usbip_pad_iso(struct usbip_device *ud, struct urb *urb)
+{
+	int np = urb->number_of_packets;
+	int i;
+	int ret;
+	int actualoffset = urb->actual_length;
+
+	if (!usb_pipeisoc(urb->pipe))
+		return 0;
+
+	/* if no packets or length of data is 0, then nothing to unpack */
+	if (np == 0 || urb->actual_length == 0)
+		return 0;
+
+	/*
+	 * if actual_length is transfer_buffer_length then no padding is
+	 * present.
+	*/
+	if (urb->actual_length == urb->transfer_buffer_length)
+		return 0;
+
+	/*
+	 * loop over all packets from last to first (to prevent overwritting
+	 * memory when padding) and move them into the proper place
+	 */
+	for (i = np-1; i > 0; i--) {
+		actualoffset -= urb->iso_frame_desc[i].actual_length;
+		memmove(urb->transfer_buffer + urb->iso_frame_desc[i].offset,
+				  urb->transfer_buffer + actualoffset,
+				  urb->iso_frame_desc[i].actual_length);
+	}
+	return ret;
+}
+EXPORT_SYMBOL_GPL(usbip_pad_iso);
 
 /* some members of urb must be substituted before. */
 int usbip_recv_xbuff(struct usbip_device *ud, struct urb *urb)
diff --git a/drivers/staging/usbip/usbip_common.h b/drivers/staging/usbip/usbip_common.h
index 9f809c315d92..c767f52be5fb 100644
--- a/drivers/staging/usbip/usbip_common.h
+++ b/drivers/staging/usbip/usbip_common.h
@@ -379,6 +379,8 @@ void usbip_header_correct_endian(struct usbip_header *pdu, int send);
 int usbip_recv_xbuff(struct usbip_device *ud, struct urb *urb);
 /* some members of urb must be substituted before. */
 int usbip_recv_iso(struct usbip_device *ud, struct urb *urb);
+/* some members of urb must be substituted before. */
+int usbip_pad_iso(struct usbip_device *ud, struct urb *urb);
 void *usbip_alloc_iso_desc_pdu(struct urb *urb, ssize_t *bufflen);
 
 
diff --git a/drivers/staging/usbip/vhci_hcd.c b/drivers/staging/usbip/vhci_hcd.c
index e23484998598..0f02a4b12ae4 100644
--- a/drivers/staging/usbip/vhci_hcd.c
+++ b/drivers/staging/usbip/vhci_hcd.c
@@ -194,7 +194,7 @@ void rh_port_disconnect(int rhport)
  *
  * So, the maximum number of ports is 31 ( port 0 to port 30) ?
  *
- * The return value is the actual transfered length in byte. If nothing has
+ * The return value is the actual transferred length in byte. If nothing has
  * been changed, return 0. In the case that the number of ports is less than or
  * equal to 6 (VHCI_NPORTS==7), return 1.
  *
diff --git a/drivers/staging/usbip/vhci_rx.c b/drivers/staging/usbip/vhci_rx.c
index 09bf2355934b..2ffc96a4c0d4 100644
--- a/drivers/staging/usbip/vhci_rx.c
+++ b/drivers/staging/usbip/vhci_rx.c
@@ -100,6 +100,9 @@ static void vhci_recv_ret_submit(struct vhci_device *vdev,
 	if (usbip_recv_iso(ud, urb) < 0)
 		return;
 
+	/* restore the padding in iso packets */
+	if (usbip_pad_iso(ud, urb) < 0)
+		return;
 
 	if (usbip_dbg_flag_vhci_rx)
 		usbip_dump_urb(urb);
diff --git a/drivers/staging/vme/bridges/vme_ca91cx42.c b/drivers/staging/vme/bridges/vme_ca91cx42.c
index d4a48c4e59c2..a4007287ef47 100644
--- a/drivers/staging/vme/bridges/vme_ca91cx42.c
+++ b/drivers/staging/vme/bridges/vme_ca91cx42.c
@@ -621,7 +621,7 @@ static int ca91cx42_master_set(struct vme_master_resource *image, int enabled,
 
 	/*
 	 * Let's allocate the resource here rather than further up the stack as
-	 * it avoids pushing loads of bus dependant stuff up the stack
+	 * it avoids pushing loads of bus dependent stuff up the stack
 	 */
 	retval = ca91cx42_alloc_resource(image, size);
 	if (retval) {
@@ -1052,7 +1052,7 @@ static int ca91cx42_dma_list_add(struct vme_dma_list *list,
 		pci_attr = dest->private;
 	}
 
-	/* Check we can do fullfill required attributes */
+	/* Check we can do fulfill required attributes */
 	if ((vme_attr->aspace & ~(VME_A16 | VME_A24 | VME_A32 | VME_USER1 |
 		VME_USER2)) != 0) {
 
@@ -1069,7 +1069,7 @@ static int ca91cx42_dma_list_add(struct vme_dma_list *list,
 		goto err_cycle;
 	}
 
-	/* Check to see if we can fullfill source and destination */
+	/* Check to see if we can fulfill source and destination */
 	if (!(((src->type == VME_DMA_PCI) && (dest->type == VME_DMA_VME)) ||
 		((src->type == VME_DMA_VME) && (dest->type == VME_DMA_PCI)))) {
 
diff --git a/drivers/staging/vme/bridges/vme_tsi148.c b/drivers/staging/vme/bridges/vme_tsi148.c
index b00a53e793e7..106aa9daff48 100644
--- a/drivers/staging/vme/bridges/vme_tsi148.c
+++ b/drivers/staging/vme/bridges/vme_tsi148.c
@@ -928,7 +928,7 @@ static int tsi148_master_set(struct vme_master_resource *image, int enabled,
 	spin_lock(&image->lock);
 
 	/* Let's allocate the resource here rather than further up the stack as
-	 * it avoids pushing loads of bus dependant stuff up the stack. If size
+	 * it avoids pushing loads of bus dependent stuff up the stack. If size
 	 * is zero, any existing resource will be freed.
 	 */
 	retval = tsi148_alloc_resource(image, size);
@@ -1320,7 +1320,7 @@ static ssize_t tsi148_master_write(struct vme_master_resource *image, void *buf,
 
 	/*
 	 * Writes are posted. We need to do a read on the VME bus to flush out
-	 * all of the writes before we check for errors. We can't guarentee
+	 * all of the writes before we check for errors. We can't guarantee
 	 * that reading the data we have just written is safe. It is believed
 	 * that there isn't any read, write re-ordering, so we can read any
 	 * location in VME space, so lets read the Device ID from the tsi148's
diff --git a/drivers/staging/vme/bridges/vme_tsi148.h b/drivers/staging/vme/bridges/vme_tsi148.h
index 9f97fa8084e8..a3ac2fe98816 100644
--- a/drivers/staging/vme/bridges/vme_tsi148.h
+++ b/drivers/staging/vme/bridges/vme_tsi148.h
@@ -212,7 +212,7 @@ static const int TSI148_LCSR_OT[8] = { TSI148_LCSR_OT0, TSI148_LCSR_OT1,
 #define TSI148_LCSR_OFFSET_OTAT		0x1C
 
 /*
- * VMEbus interupt ack
+ * VMEbus interrupt ack
  * offset  200
  */
 #define TSI148_LCSR_VIACK1	0x204
@@ -613,7 +613,7 @@ static const int TSI148_GCSR_MBOX[4] = { TSI148_GCSR_MBOX0,
 /*
  *  PCI-X Status Register (CRG +$054)
  */
-#define TSI148_PCFS_PCIXSTAT_RSCEM     (1<<29)	/* Recieved Split Comp Error */
+#define TSI148_PCFS_PCIXSTAT_RSCEM     (1<<29)	/* Received Split Comp Error */
 #define TSI148_PCFS_PCIXSTAT_DMCRS_M   (7<<26)	/* max Cumulative Read Size */
 #define TSI148_PCFS_PCIXSTAT_DMOST_M   (7<<23)	/* max outstanding Split Trans
 						 */
@@ -982,8 +982,8 @@ static const int TSI148_GCSR_MBOX[4] = { TSI148_GCSR_MBOX0,
 #define TSI148_LCSR_VICR_CNTS_IRQ1     (2<<22)	/* IRQ1 to Cntr */
 #define TSI148_LCSR_VICR_CNTS_IRQ2     (3<<22)	/* IRQ2 to Cntr */
 
-#define TSI148_LCSR_VICR_EDGIS_M       (3<<20)	/* Edge interupt MASK */
-#define TSI148_LCSR_VICR_EDGIS_DIS     (1<<20)	/* Edge interupt Disable */
+#define TSI148_LCSR_VICR_EDGIS_M       (3<<20)	/* Edge interrupt MASK */
+#define TSI148_LCSR_VICR_EDGIS_DIS     (1<<20)	/* Edge interrupt Disable */
 #define TSI148_LCSR_VICR_EDGIS_IRQ1    (2<<20)	/* IRQ1 to Edge */
 #define TSI148_LCSR_VICR_EDGIS_IRQ2    (3<<20)	/* IRQ2 to Edge */
 
diff --git a/drivers/staging/vme/vme_api.txt b/drivers/staging/vme/vme_api.txt
index a910a0c4388b..4910e92c52af 100644
--- a/drivers/staging/vme/vme_api.txt
+++ b/drivers/staging/vme/vme_api.txt
@@ -6,7 +6,7 @@ Driver registration
 
 As with other subsystems within the Linux kernel, VME device drivers register
 with the VME subsystem, typically called from the devices init routine.  This is
-achieved via a call to the follwoing function:
+achieved via a call to the following function:
 
 	int vme_register_driver (struct vme_driver *driver);
 
@@ -108,7 +108,7 @@ Master windows
 ==============
 
 Master windows provide access from the local processor[s] out onto the VME bus.
-The number of windows available and the available access modes is dependant on
+The number of windows available and the available access modes is dependent on
 the underlying chipset. A window must be configured before it can be used.
 
 
@@ -163,7 +163,7 @@ Slave windows
 
 Slave windows provide devices on the VME bus access into mapped portions of the
 local memory. The number of windows available and the access modes that can be
-used is dependant on the underlying chipset. A window must be configured before
+used is dependent on the underlying chipset. A window must be configured before
 it can be used.
 
 
diff --git a/drivers/staging/vt6655/Kconfig b/drivers/staging/vt6655/Kconfig
index 061e730df2d0..c3ba693a8cad 100644
--- a/drivers/staging/vt6655/Kconfig
+++ b/drivers/staging/vt6655/Kconfig
@@ -1,6 +1,6 @@
 config VT6655
    tristate "VIA Technologies VT6655 support"
-   depends on PCI && WLAN
+   depends on PCI && WLAN && m
    select WIRELESS_EXT
    select WEXT_PRIV
    ---help---
diff --git a/drivers/staging/vt6655/card.c b/drivers/staging/vt6655/card.c
index 951a3a8ddcb2..2721e0798496 100644
--- a/drivers/staging/vt6655/card.c
+++ b/drivers/staging/vt6655/card.c
@@ -1186,7 +1186,7 @@ CARDbStartMeasure (
             wDuration += 1; // 1 TU for channel switching
 
             if ((LODWORD(qwStartTSF) == 0) && (HIDWORD(qwStartTSF) == 0)) {
-                // start imediately by setting start TSF == current TSF + 2 TU
+                // start immediately by setting start TSF == current TSF + 2 TU
                 LODWORD(qwStartTSF) = LODWORD(qwCurrTSF) + 2048;
                 HIDWORD(qwStartTSF) = HIDWORD(qwCurrTSF);
                 if (LODWORD(qwCurrTSF) > LODWORD(qwStartTSF)) {
diff --git a/drivers/staging/vt6655/device_main.c b/drivers/staging/vt6655/device_main.c
index efaf19bc07b7..ad39c8727e9b 100644
--- a/drivers/staging/vt6655/device_main.c
+++ b/drivers/staging/vt6655/device_main.c
@@ -137,7 +137,7 @@ DEVICE_PARAM(TxDescriptors1,"Number of transmit descriptors1");
 /* IP_byte_align[] is used for IP header unsigned long byte aligned
    0: indicate the IP header won't be unsigned long byte aligned.(Default) .
    1: indicate the IP header will be unsigned long byte aligned.
-      In some enviroment, the IP header should be unsigned long byte aligned,
+      In some environment, the IP header should be unsigned long byte aligned,
       or the packet will be droped when we receive it. (eg: IPVS)
 */
 DEVICE_PARAM(IP_byte_align,"Enable IP header dword aligned");
diff --git a/drivers/staging/vt6655/wcmd.c b/drivers/staging/vt6655/wcmd.c
index abd6745bc3fe..c30170a2bc44 100644
--- a/drivers/staging/vt6655/wcmd.c
+++ b/drivers/staging/vt6655/wcmd.c
@@ -587,7 +587,7 @@ printk("chester-abyDesireSSID=%s\n",((PWLAN_IE_SSID)pMgmt->abyDesireSSID)->abySS
             if ((pMgmt->eCurrMode == WMAC_MODE_ESS_STA) && (pMgmt->eCurrState == WMAC_STATE_JOINTED)) {
 
 		// Call mgr to begin the deauthentication
-                // reason = (3) beacuse sta has left ESS
+                // reason = (3) because sta has left ESS
                 if (pMgmt->eCurrState>= WMAC_STATE_AUTH) {
                     vMgrDeAuthenBeginSta((void *)pDevice, pMgmt, pMgmt->abyCurrBSSID, (3), &Status);
                 }
diff --git a/drivers/staging/vt6655/wmgr.h b/drivers/staging/vt6655/wmgr.h
index 141e80b843af..e3ae562f521a 100644
--- a/drivers/staging/vt6655/wmgr.h
+++ b/drivers/staging/vt6655/wmgr.h
@@ -220,7 +220,7 @@ typedef enum tagWMAC_POWER_MODE {
 */
 
 
-// Tx Managment Packet descriptor
+// Tx Management Packet descriptor
 typedef struct tagSTxMgmtPacket {
 
     PUWLAN_80211HDR     p80211Header;
@@ -230,7 +230,7 @@ typedef struct tagSTxMgmtPacket {
 } STxMgmtPacket, *PSTxMgmtPacket;
 
 
-// Rx Managment Packet descriptor
+// Rx Management Packet descriptor
 typedef struct tagSRxMgmtPacket {
 
     PUWLAN_80211HDR     p80211Header;
diff --git a/drivers/staging/vt6656/Kconfig b/drivers/staging/vt6656/Kconfig
index a441ba513c40..f89ab205c8e0 100644
--- a/drivers/staging/vt6656/Kconfig
+++ b/drivers/staging/vt6656/Kconfig
@@ -1,6 +1,6 @@
 config VT6656
 	tristate "VIA Technologies VT6656 support"
-	depends on USB && WLAN
+	depends on USB && WLAN && m
 	select WIRELESS_EXT
 	select WEXT_PRIV
 	select FW_LOADER
diff --git a/drivers/staging/vt6656/rxtx.c b/drivers/staging/vt6656/rxtx.c
index 8f18578a5903..5185d61564d7 100644
--- a/drivers/staging/vt6656/rxtx.c
+++ b/drivers/staging/vt6656/rxtx.c
@@ -1938,7 +1938,7 @@ s_vGenerateMACHeader (
  *  Out:
  *      none
  *
- * Return Value: CMD_STATUS_PENDING if MAC Tx resource avaliable; otherwise FALSE
+ * Return Value: CMD_STATUS_PENDING if MAC Tx resource available; otherwise FALSE
  *
 -*/
 
diff --git a/drivers/staging/vt6656/wcmd.c b/drivers/staging/vt6656/wcmd.c
index b83b660b1f0f..019fb52de366 100644
--- a/drivers/staging/vt6656/wcmd.c
+++ b/drivers/staging/vt6656/wcmd.c
@@ -421,7 +421,7 @@ void vRunCommand(void *hDeviceContext)
                     pMgmt->eScanState = WMAC_IS_SCANNING;
                     pDevice->byScanBBType = pDevice->byBBType;  //lucas
                     pDevice->bStopDataPkt = TRUE;
-                    // Turn off RCR_BSSID filter everytime
+                    // Turn off RCR_BSSID filter every time
                     MACvRegBitsOff(pDevice, MAC_REG_RCR, RCR_BSSID);
                     pDevice->byRxMode &= ~RCR_BSSID;
 
@@ -604,7 +604,7 @@ void vRunCommand(void *hDeviceContext)
             // if Infra mode
             if ((pMgmt->eCurrMode == WMAC_MODE_ESS_STA) && (pMgmt->eCurrState == WMAC_STATE_JOINTED)) {
                 // Call mgr to begin the deauthentication
-                // reason = (3) beacuse sta has left ESS
+                // reason = (3) because sta has left ESS
 	      if (pMgmt->eCurrState >= WMAC_STATE_AUTH) {
 		vMgrDeAuthenBeginSta((void *)pDevice,
 				     pMgmt,
diff --git a/drivers/staging/vt6656/wmgr.h b/drivers/staging/vt6656/wmgr.h
index 594f3a89d8a7..13dfb3bf8328 100644
--- a/drivers/staging/vt6656/wmgr.h
+++ b/drivers/staging/vt6656/wmgr.h
@@ -218,7 +218,7 @@ typedef enum tagWMAC_POWER_MODE {
 
 
 
-// Tx Managment Packet descriptor
+// Tx Management Packet descriptor
 typedef struct tagSTxMgmtPacket {
 
     PUWLAN_80211HDR     p80211Header;
@@ -228,7 +228,7 @@ typedef struct tagSTxMgmtPacket {
 } STxMgmtPacket, *PSTxMgmtPacket;
 
 
-// Rx Managment Packet descriptor
+// Rx Management Packet descriptor
 typedef struct tagSRxMgmtPacket {
 
     PUWLAN_80211HDR     p80211Header;
diff --git a/drivers/staging/westbridge/astoria/api/src/cyasdma.c b/drivers/staging/westbridge/astoria/api/src/cyasdma.c
index 16b8ec124510..c461d4f60bfb 100644
--- a/drivers/staging/westbridge/astoria/api/src/cyasdma.c
+++ b/drivers/staging/westbridge/astoria/api/src/cyasdma.c
@@ -1082,7 +1082,7 @@ cy_as_dma_received_data(cy_as_device *dev_p,
 	/*
 	 * if the data received exceeds the size of the DMA buffer,
 	 * clip the data to the size of the buffer.  this can lead
-	 * to loosing some data, but is not different than doing
+	 * to losing some data, but is not different than doing
 	 * non-packet reads on the other endpoints.
 	 */
 	if (dsize > dma_p->size - dma_p->offset)
diff --git a/drivers/staging/westbridge/astoria/api/src/cyaslep2pep.c b/drivers/staging/westbridge/astoria/api/src/cyaslep2pep.c
index 60b6f3525332..76821e51b817 100644
--- a/drivers/staging/westbridge/astoria/api/src/cyaslep2pep.c
+++ b/drivers/staging/westbridge/astoria/api/src/cyaslep2pep.c
@@ -126,7 +126,7 @@ find_endpoint_directions(cy_as_device *dev_p,
 	cy_as_physical_endpoint_state desired;
 
 	/*
-	 * note, there is no error checking here becuase
+	 * note, there is no error checking here because
 	 * ISO error checking happens when the API is called.
 	 */
 	for (i = 0; i < 10; i++) {
diff --git a/drivers/staging/westbridge/astoria/api/src/cyaslowlevel.c b/drivers/staging/westbridge/astoria/api/src/cyaslowlevel.c
index d43dd858de58..96a86d088305 100644
--- a/drivers/staging/westbridge/astoria/api/src/cyaslowlevel.c
+++ b/drivers/staging/westbridge/astoria/api/src/cyaslowlevel.c
@@ -432,7 +432,7 @@ cy_as_mail_box_queued_data_handler(cy_as_device *dev_p)
 * is received.  When a complete request is received, the callback
 * associated with requests on that context is called.  When a complete
 * response is recevied, the callback associated with the request that
-* generated the reponse is called.
+* generated the response is called.
 */
 void
 cy_as_mail_box_interrupt_handler(cy_as_device *dev_p)
diff --git a/drivers/staging/westbridge/astoria/api/src/cyasmisc.c b/drivers/staging/westbridge/astoria/api/src/cyasmisc.c
index 7852410b0a4c..4564fc11df22 100644
--- a/drivers/staging/westbridge/astoria/api/src/cyasmisc.c
+++ b/drivers/staging/westbridge/astoria/api/src/cyasmisc.c
@@ -428,7 +428,7 @@ my_misc_callback(cy_as_device *dev_p, uint8_t context,
 				if (v & CY_AS_MEM_P0_VM_SET_CFGMODE)
 					cy_as_hal_print_message(
 					"initialization message "
-					"recieved, but config bit "
+					"received, but config bit "
 					"still set\n");
 
 				v = cy_as_hal_read_register(dev_p->tag,
@@ -436,7 +436,7 @@ my_misc_callback(cy_as_device *dev_p, uint8_t context,
 				if ((v & CY_AS_MEM_RST_RSTCMPT) == 0)
 					cy_as_hal_print_message(
 					"initialization message "
-					"recieved, but reset complete "
+					"received, but reset complete "
 					"bit still not set\n");
 			}
 			break;
@@ -2381,7 +2381,7 @@ try_wakeup_again:
 	/*
 	 * release the west bridge micro-_controller from reset,
 	 * so that firmware initialization can complete. the attempt
-	 * to release antioch reset is made upto 8 times.
+	 * to release antioch reset is made up to 8 times.
 	 */
 	v = 0x03;
 	count = 0x08;
diff --git a/drivers/staging/westbridge/astoria/api/src/cyasmtp.c b/drivers/staging/westbridge/astoria/api/src/cyasmtp.c
index 368984633874..8598364f7ab7 100644
--- a/drivers/staging/westbridge/astoria/api/src/cyasmtp.c
+++ b/drivers/staging/westbridge/astoria/api/src/cyasmtp.c
@@ -346,7 +346,7 @@ cy_as_mtp_start(cy_as_device_handle handle,
 
 		dev_p->mtp_event_cb = event_c_b;
 		/*
-		* we register here becuase the start request may cause
+		* we register here because the start request may cause
 		* events to occur before the response to the start request.
 		*/
 		cy_as_ll_register_request_callback(dev_p,
@@ -424,7 +424,7 @@ my_handle_response_mtp_stop(cy_as_device *dev_p,
 		goto destroy;
 
 	/*
-	* we sucessfully shutdown the stack, so decrement
+	* we successfully shutdown the stack, so decrement
 	* to make the count zero.
 	*/
 	dev_p->mtp_count--;
diff --git a/drivers/staging/westbridge/astoria/api/src/cyasstorage.c b/drivers/staging/westbridge/astoria/api/src/cyasstorage.c
index 2451404b88d4..7abd6a35e828 100644
--- a/drivers/staging/westbridge/astoria/api/src/cyasstorage.c
+++ b/drivers/staging/westbridge/astoria/api/src/cyasstorage.c
@@ -1773,7 +1773,7 @@ cy_as_storage_async_oper(cy_as_device *dev_p, cy_as_end_point_number_t ep,
 	if (unit > 255)
 		return CY_AS_ERROR_NO_SUCH_UNIT;
 
-	/* We are supposed to return sucess if the number of
+	/* We are supposed to return success if the number of
 	* blocks is zero
 	*/
 	if (num_blocks == 0) {
@@ -1969,7 +1969,7 @@ cy_as_storage_sync_oper(cy_as_device *dev_p,
 	if (cy_as_device_is_usb_async_pending(dev_p, 6))
 		return CY_AS_ERROR_ASYNC_PENDING;
 
-	/* We are supposed to return sucess if the number of
+	/* We are supposed to return success if the number of
 	* blocks is zero
 	*/
 	if (num_blocks == 0)
@@ -3285,7 +3285,7 @@ cy_as_sdio_extended_i_o_async(
 	if (callback == 0)
 		return CY_AS_ERROR_NULL_CALLBACK;
 
-	/* We are supposed to return sucess if the number of
+	/* We are supposed to return success if the number of
 	 * blocks is zero
 	 */
 	if (((misc_buf&CY_SDIO_BLOCKMODE) != 0) && (argument == 0)) {
diff --git a/drivers/staging/westbridge/astoria/api/src/cyasusb.c b/drivers/staging/westbridge/astoria/api/src/cyasusb.c
index 92ea42503bf3..1b55e611191e 100644
--- a/drivers/staging/westbridge/astoria/api/src/cyasusb.c
+++ b/drivers/staging/westbridge/astoria/api/src/cyasusb.c
@@ -739,7 +739,7 @@ cy_as_usb_start(cy_as_device_handle handle,
 		cy_as_usb_reset_e_p0_state(dev_p);
 
 		/*
-		* we register here becuase the start request may cause
+		* we register here because the start request may cause
 		* events to occur before the response to the start request.
 		*/
 		cy_as_ll_register_request_callback(dev_p,
@@ -867,7 +867,7 @@ my_handle_response_usb_stop(cy_as_device *dev_p,
 		goto destroy;
 
 	/*
-	 * we sucessfully shutdown the stack, so
+	 * we successfully shutdown the stack, so
 	 * decrement to make the count zero.
 	 */
 	cy_as_usb_cleanup(dev_p);
diff --git a/drivers/staging/westbridge/astoria/arch/arm/mach-omap2/cyashalomap_kernel.c b/drivers/staging/westbridge/astoria/arch/arm/mach-omap2/cyashalomap_kernel.c
index ea9b733c3926..3bcedce13f4a 100644
--- a/drivers/staging/westbridge/astoria/arch/arm/mach-omap2/cyashalomap_kernel.c
+++ b/drivers/staging/westbridge/astoria/arch/arm/mach-omap2/cyashalomap_kernel.c
@@ -87,7 +87,7 @@
 
 
 /*
- * For performance reasons, we handle storage endpoint transfers upto 4 KB
+ * For performance reasons, we handle storage endpoint transfers up to 4 KB
  * within the HAL itself.
  */
  #define CYASSTORAGE_WRITE_EP_NUM	(4)
@@ -108,12 +108,12 @@
 				((ep) == 6) || ((ep) == 8))
 
 /*
- * persistant, stores current GPMC interface cfg mode
+ * persistent, stores current GPMC interface cfg mode
  */
 static uint8_t pnand_16bit;
 
 /*
- * keep processing new WB DRQ in ISR untill all handled (performance feature)
+ * keep processing new WB DRQ in ISR until all handled (performance feature)
  */
 #define PROCESS_MULTIPLE_DRQ_IN_ISR (1)
 
@@ -157,7 +157,7 @@ typedef struct cy_as_hal_endpoint_dma {
 	 * dma_xfer_sz - size of the next dma xfer on P port
 	 * seg_xfer_cnt -  counts xfered bytes for in current sg_list
 	 *		memory segment
-	 * req_xfer_cnt - total number of bytes transfered so far in
+	 * req_xfer_cnt - total number of bytes transferred so far in
 	 *		current request
 	 * req_length - total request length
 	 */
@@ -597,7 +597,7 @@ static int cy_as_hal_configure_interrupts(void *dev_p)
 	int result;
 	int irq_pin  = AST_INT;
 
-	set_irq_type(OMAP_GPIO_IRQ(irq_pin), IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(OMAP_GPIO_IRQ(irq_pin), IRQ_TYPE_LEVEL_LOW);
 
 	/*
 	 * for shared IRQS must provide non NULL device ptr
@@ -2160,7 +2160,7 @@ void cy_as_hal_mem_set(void *ptr, uint8_t value, uint32_t cnt)
 /*
  * This function is expected to create a sleep channel.
  * The data structure that represents the sleep channel object
- * sleep channel (which is Linux "wait_queue_head_t wq" for this paticular HAL)
+ * sleep channel (which is Linux "wait_queue_head_t wq" for this particular HAL)
  * passed as a pointer, and allpocated by the caller
  * (typically as a local var on the stack) "Create" word should read as
  * "SleepOn", this func doesn't actually create anything
@@ -2364,7 +2364,7 @@ int start_o_m_a_p_kernel(const char *pgm,
 	 */
 	cy_as_hal_gpmc_enable_16bit_bus(cy_true);
 #else
-   /* Astoria and GPMC are already in 8 bit mode, jsut initialize PNAND_CFG */
+   /* Astoria and GPMC are already in 8 bit mode, just initialize PNAND_CFG */
 	ast_p_nand_casdi_write(CY_AS_MEM_PNAND_CFG, 0x0000);
 #endif
 
diff --git a/drivers/staging/westbridge/astoria/arch/arm/plat-omap/include/mach/westbridge/westbridge-omap3-pnand-hal/cyashalomap_kernel.h b/drivers/staging/westbridge/astoria/arch/arm/plat-omap/include/mach/westbridge/westbridge-omap3-pnand-hal/cyashalomap_kernel.h
index 80dd530bc4fd..6426ea61f3d4 100644
--- a/drivers/staging/westbridge/astoria/arch/arm/plat-omap/include/mach/westbridge/westbridge-omap3-pnand-hal/cyashalomap_kernel.h
+++ b/drivers/staging/westbridge/astoria/arch/arm/plat-omap/include/mach/westbridge/westbridge-omap3-pnand-hal/cyashalomap_kernel.h
@@ -20,7 +20,7 @@
 */
 
 /*
- * This file contains the defintion of the hardware abstraction
+ * This file contains the definition of the hardware abstraction
  * layer on OMAP3430 talking to the West Bridge Astoria device
  */
 
diff --git a/drivers/staging/westbridge/astoria/arch/arm/plat-omap/include/mach/westbridge/westbridge-omap3-pnand-hal/cyasmemmap.h b/drivers/staging/westbridge/astoria/arch/arm/plat-omap/include/mach/westbridge/westbridge-omap3-pnand-hal/cyasmemmap.h
index 3eee192ffe89..46f06ee29357 100644
--- a/drivers/staging/westbridge/astoria/arch/arm/plat-omap/include/mach/westbridge/westbridge-omap3-pnand-hal/cyasmemmap.h
+++ b/drivers/staging/westbridge/astoria/arch/arm/plat-omap/include/mach/westbridge/westbridge-omap3-pnand-hal/cyasmemmap.h
@@ -51,7 +51,7 @@
  * 							GPMC_ADDR
  *							[A8:A1]->upD[7:0]
  * INT#	-GPMC_nWP_GPIO_62
- * DACK	-N/C				 not conected
+ * DACK	-N/C				 not connected
  * WAKEUP-GPIO_167
  * RESET-GPIO_126
  * R/B	-GPMC_WAIT2_GPIO_64
@@ -108,7 +108,7 @@
 	 *					will be monitored
 	 * PF_EN_ENGINE - 1- ENABLES ENGINE, but it needs to be started after
 	 *					that C ctrl reg bit 0
-	 * PF_FIFO_THRESHOLD - FIFO threshhold in number of BUS(8 or 16) words
+	 * PF_FIFO_THRESHOLD - FIFO threshold in number of BUS(8 or 16) words
 	 * PF_WEIGHTED_PRIO  - NUM of cycles granted to PFE if RND_ROBIN
 	 *					prioritization is enabled
 	 * PF_ROUND_ROBIN  - if enabled, gives priority to other CS, but
diff --git a/drivers/staging/westbridge/astoria/block/cyasblkdev_block.c b/drivers/staging/westbridge/astoria/block/cyasblkdev_block.c
index 842cd9214a5e..289729daba80 100644
--- a/drivers/staging/westbridge/astoria/block/cyasblkdev_block.c
+++ b/drivers/staging/westbridge/astoria/block/cyasblkdev_block.c
@@ -1191,7 +1191,7 @@ static int cyasblkdev_add_disks(int bus_num,
 		bd->user_disk_1->first_minor = (devidx + 1) << CYASBLKDEV_SHIFT;
 		bd->user_disk_1->minors = 8;
 		bd->user_disk_1->fops = &cyasblkdev_bdops;
-		bd->user_disk_0->events = DISK_EVENT_MEDIA_CHANGE;
+		bd->user_disk_1->events = DISK_EVENT_MEDIA_CHANGE;
 		bd->user_disk_1->private_data = bd;
 		bd->user_disk_1->queue = bd->queue.queue;
 		bd->dbgprn_flags = DBGPRN_RD_RQ;
diff --git a/drivers/staging/westbridge/astoria/block/cyasblkdev_queue.c b/drivers/staging/westbridge/astoria/block/cyasblkdev_queue.c
index 0bbb8a3e191d..d1996a27515e 100644
--- a/drivers/staging/westbridge/astoria/block/cyasblkdev_queue.c
+++ b/drivers/staging/westbridge/astoria/block/cyasblkdev_queue.c
@@ -222,7 +222,7 @@ static int cyasblkdev_queue_thread(void *d)
 			continue;
 		}
 
-		/* new req recieved, issue it to the driver  */
+		/* new req received, issue it to the driver  */
 		set_current_state(TASK_RUNNING);
 
 		#ifndef WESTBRIDGE_NDEBUG
diff --git a/drivers/staging/westbridge/astoria/gadget/cyasgadget.c b/drivers/staging/westbridge/astoria/gadget/cyasgadget.c
index defa05cd5e50..be851ca54cec 100644
--- a/drivers/staging/westbridge/astoria/gadget/cyasgadget.c
+++ b/drivers/staging/westbridge/astoria/gadget/cyasgadget.c
@@ -587,6 +587,7 @@ static int cyasgadget_enable(
 			"cy_as_usb_end_point_config EP %s mismatch "
 			"on enabled\n", an_ep->usb_ep_inst.name);
 		#endif
+		spin_unlock_irqrestore(&an_dev->lock, flags);
 		return -EINVAL;
 	}
 
diff --git a/drivers/staging/westbridge/astoria/include/linux/westbridge/cyasdevice.h b/drivers/staging/westbridge/astoria/include/linux/westbridge/cyasdevice.h
index 0c0726b678ad..6452a9070091 100644
--- a/drivers/staging/westbridge/astoria/include/linux/westbridge/cyasdevice.h
+++ b/drivers/staging/westbridge/astoria/include/linux/westbridge/cyasdevice.h
@@ -119,7 +119,7 @@
 #define CY_AS_REQUEST_LIST_STATE_QUEUED (0x00)
 /* The request is sent, waiting for response */
 #define CY_AS_REQUEST_LIST_STATE_WAITING (0x01)
-/* The response has been received, processing reponse */
+/* The response has been received, processing response */
 #define CY_AS_REQUEST_LIST_STATE_RECEIVED (0x02)
 /* The request/response is being canceled */
 #define CY_AS_REQUEST_LIST_STATE_CANCELING (0x03)
@@ -517,7 +517,7 @@ typedef struct cy_as_context {
 	cy_as_ll_request_list_node *request_queue_p;
 	/* The list node in the request queue */
 	cy_as_ll_request_list_node *last_node_p;
-	/* Index upto which data is stored. */
+	/* Index up to which data is stored. */
 	uint16_t queue_index;
 	/* Index to the next request in the queue. */
 	uint16_t rqt_index;
@@ -768,7 +768,7 @@ struct cy_as_device {
 	uint32_t mtp_count;
 	/* The MTP event callback supplied by the client */
 	cy_as_mtp_event_callback mtp_event_cb;
-	/* The current block table to be transfered */
+	/* The current block table to be transferred */
 	cy_as_mtp_block_table *tp_blk_tbl;
 
 	cy_as_c_b_queue *func_cbs_mtp;
diff --git a/drivers/staging/westbridge/astoria/include/linux/westbridge/cyasdma.h b/drivers/staging/westbridge/astoria/include/linux/westbridge/cyasdma.h
index 8dab5e900149..16dc9f96018c 100644
--- a/drivers/staging/westbridge/astoria/include/linux/westbridge/cyasdma.h
+++ b/drivers/staging/westbridge/astoria/include/linux/westbridge/cyasdma.h
@@ -108,7 +108,7 @@ typedef enum cy_as_dma_direction {
    completes a requested DMA operation.
 
    Returns
-   CY_AS_ERROR_SUCCESS - the module initialized sucessfully
+   CY_AS_ERROR_SUCCESS - the module initialized successfully
    CY_AS_ERROR_OUT_OF_MEMORY - memory allocation failed during
 		initialization
    CY_AS_ERROR_ALREADY_RUNNING - the DMA module was already running
@@ -131,7 +131,7 @@ cy_as_dma_start(
    then freeing the resources associated with each DMA endpoint.
 
    Returns
-   CY_AS_ERROR_SUCCESS - the module shutdown sucessfully
+   CY_AS_ERROR_SUCCESS - the module shutdown successfully
    CY_AS_ERROR_NOT_RUNNING - the DMA module was not running
 
    See Also
@@ -161,7 +161,7 @@ cy_as_dma_stop(
 
    Returns
    CY_AS_ERROR_SUCCESS - the traffic on the endpoint is canceled
-	sucessfully
+	successfully
 
    See Also
 */
@@ -266,7 +266,7 @@ cy_as_dma_queue_request(
    will have to maintain a list of sleep channels to wake.
 
    Returns
-   * CY_AS_ERROR_SUCCESS - the queue has drained sucessfully
+   * CY_AS_ERROR_SUCCESS - the queue has drained successfully
    * CY_AS_ERROR_INVALID_ENDPOINT - the endpoint given is not valid
    * CY_AS_ERROR_NESTED_SLEEP - CyAsDmaQueueRequest() was requested
    *	on an endpoint where CyAsDmaQueueRequest was already called
@@ -295,7 +295,7 @@ cy_as_dma_drain_queue(
    CyAsHalDmaSetupRead() functoins.
 
    Returns
-   * CY_AS_ERROR_SUCCESS - the value was set sucessfully
+   * CY_AS_ERROR_SUCCESS - the value was set successfully
    * CY_AS_ERROR_INVALID_SIZE - the size value was not valid
 */
 extern cy_as_return_status_t
diff --git a/drivers/staging/westbridge/astoria/include/linux/westbridge/cyaserr.h b/drivers/staging/westbridge/astoria/include/linux/westbridge/cyaserr.h
index f78d60270d45..2cd0af1ed781 100644
--- a/drivers/staging/westbridge/astoria/include/linux/westbridge/cyaserr.h
+++ b/drivers/staging/westbridge/astoria/include/linux/westbridge/cyaserr.h
@@ -29,7 +29,7 @@
 */
 
 /* Summary
-   The function completed sucessfully
+   The function completed successfully
 */
 #define CY_AS_ERROR_SUCCESS	 (0)
 
@@ -796,7 +796,7 @@
    Description
    This error is returned when an operation is attempted that cannot be
    completed while the USB stack is connected to a USB host.  In order
-   to sucessfully complete the desired operation, CyAsUsbDisconnect()
+   to successfully complete the desired operation, CyAsUsbDisconnect()
    must be called to disconnect from the host.
 */
 #define CY_AS_ERROR_USB_CONNECTED (53)
diff --git a/drivers/staging/westbridge/astoria/include/linux/westbridge/cyashaldoc.h b/drivers/staging/westbridge/astoria/include/linux/westbridge/cyashaldoc.h
index 28136ad75115..5bcbe9bf2f5d 100644
--- a/drivers/staging/westbridge/astoria/include/linux/westbridge/cyashaldoc.h
+++ b/drivers/staging/westbridge/astoria/include/linux/westbridge/cyashaldoc.h
@@ -597,7 +597,7 @@ cy_as_mem_set(
    CyAsHalSleepChannel.
 
    Returns
-   CyTrue is the initialization was sucessful, and CyFalse otherwise
+   CyTrue is the initialization was successful, and CyFalse otherwise
 
    See Also
    * CyAsHalSleepChannel
diff --git a/drivers/staging/westbridge/astoria/include/linux/westbridge/cyasintr.h b/drivers/staging/westbridge/astoria/include/linux/westbridge/cyasintr.h
index 3d7063ea3093..60a6fffb5d53 100644
--- a/drivers/staging/westbridge/astoria/include/linux/westbridge/cyasintr.h
+++ b/drivers/staging/westbridge/astoria/include/linux/westbridge/cyasintr.h
@@ -69,7 +69,7 @@ cy_as_intr_start(
 
    Returns
    * CY_AS_ERROR_SUCCESS - the interrupt module was stopped
-   *	sucessfully
+   *	successfully
    * CY_AS_ERROR_NOT_RUNNING - the interrupt module was not
    *	running
 
diff --git a/drivers/staging/westbridge/astoria/include/linux/westbridge/cyasmisc.h b/drivers/staging/westbridge/astoria/include/linux/westbridge/cyasmisc.h
index 2f0701850561..df7c2b66cf27 100644
--- a/drivers/staging/westbridge/astoria/include/linux/westbridge/cyasmisc.h
+++ b/drivers/staging/westbridge/astoria/include/linux/westbridge/cyasmisc.h
@@ -620,7 +620,7 @@ cy_as_misc_in_standby(
    * Nestable: YES
 
    Returns
-   * CY_AS_ERROR_SUCCESS - the firmware was sucessfully downloaded
+   * CY_AS_ERROR_SUCCESS - the firmware was successfully downloaded
    * CY_AS_ERROR_INVALID_HANDLE
    * CY_AS_ERROR_NOT_CONFIGURED - the West Bridge device
    *	was not configured
@@ -836,7 +836,7 @@ cy_as_misc_reset(
    ownership.
 
    Returns
-   * CY_AS_ERROR_SUCCESS - the p port sucessfully acquired the
+   * CY_AS_ERROR_SUCCESS - the p port successfully acquired the
    * 	resource of interest
    * CY_AS_ERROR_INVALID_HANDLE
    * CY_AS_ERROR_NOT_CONFIGURED
@@ -879,7 +879,7 @@ cy_as_misc_acquire_resource(
    * Valid In Asynchronous Callback: NO
 
    Returns
-   * CY_AS_ERROR_SUCCESS - the p port sucessfully released
+   * CY_AS_ERROR_SUCCESS - the p port successfully released
    *	the resource of interest
    * CY_AS_ERROR_INVALID_HANDLE
    * CY_AS_ERROR_NOT_CONFIGURED
@@ -929,7 +929,7 @@ cy_as_misc_release_resource(
 
    Returns
    * CY_AS_ERROR_SUCCESS - the trace configuration has been
-   *	sucessfully changed
+   *	successfully changed
    * CY_AS_ERROR_NO_SUCH_BUS - the bus specified does not exist
    * CY_AS_ERROR_NO_SUCH_DEVICE - the specified media/device
    *	pair does not exist
diff --git a/drivers/staging/westbridge/astoria/include/linux/westbridge/cyasprotocol.h b/drivers/staging/westbridge/astoria/include/linux/westbridge/cyasprotocol.h
index 317805fc4ff4..773b645ea7eb 100644
--- a/drivers/staging/westbridge/astoria/include/linux/westbridge/cyasprotocol.h
+++ b/drivers/staging/westbridge/astoria/include/linux/westbridge/cyasprotocol.h
@@ -756,7 +756,7 @@
 	 * 1 : Debug mode
 
    Description
-   This reponse is sent to return the firmware version
+   This response is sent to return the firmware version
    number to the requestor.
  */
 #define CY_RESP_FIRMWARE_VERSION (16)
@@ -3655,7 +3655,7 @@
    This request is sent to the West Bridge when the P port
    needs to send data to the Host in a Turbo Endpoint.
    Upon receiving this event, Firmware will make the end point
-   avilable for the P port. If the length is zero, then
+   available for the P port. If the length is zero, then
    firmware will send a zero length packet.
 
    Direction
diff --git a/drivers/staging/westbridge/astoria/include/linux/westbridge/cyasstorage.h b/drivers/staging/westbridge/astoria/include/linux/westbridge/cyasstorage.h
index 64f078cf202c..52b93c3e4813 100644
--- a/drivers/staging/westbridge/astoria/include/linux/westbridge/cyasstorage.h
+++ b/drivers/staging/westbridge/astoria/include/linux/westbridge/cyasstorage.h
@@ -832,7 +832,7 @@ typedef struct cy_as_sdio_func {
    * CY_AS_ERROR_NO_FIRMWARE - the firmware has not been
    *	loaded into West Bridge
    * CY_AS_ERROR_INVALID_HANDLE - an invalid handle was passed in
-   * CY_AS_ERROR_SUCCESS - the module started sucessfully
+   * CY_AS_ERROR_SUCCESS - the module started successfully
    * CY_AS_ERROR_TIMEOUT - a timeout occurred communicating
    *	with the West Bridge device
    * CY_AS_ERROR_OUT_OF_MEMORY
@@ -882,7 +882,7 @@ cy_as_storage_start(
    * CY_AS_ERROR_INVALID_HANDLE - an invalid handle was
    *	passed in
    * CY_AS_ERROR_SUCCESS - this module was shut
-   *	down sucessfully
+   *	down successfully
    * CY_AS_ERROR_TIMEOUT - a timeout occurred
    *	communicating with the West Bridge device
    * CY_AS_ERROR_NOT_RUNNING
@@ -934,7 +934,7 @@ cy_as_storage_stop(
    * CY_AS_ERROR_INVALID_HANDLE - an invalid handle
    *	was passed in
    * CY_AS_ERROR_SUCCESS - the function was registered
-   *	sucessfully
+   *	successfully
    * CY_AS_ERROR_NOT_RUNNING - the stack is not running
 
    See Also
@@ -981,7 +981,7 @@ cy_as_storage_register_callback(
    *	been started
    * CY_AS_ERROR_INVALID_HANDLE - an invalid handle was
    *	passed in
-   * CY_AS_ERROR_SUCCESS - this request was sucessfully
+   * CY_AS_ERROR_SUCCESS - this request was successfully
    *	transmitted to the West Bridge device
    * CY_AS_ERROR_TIMEOUT - a timeout occurred communicating
    *	with the West Bridge device
@@ -1034,7 +1034,7 @@ cy_as_storage_claim(
    *	been started
    * CY_AS_ERROR_INVALID_HANDLE - an invalid handle
    *	was passed in
-   * CY_AS_ERROR_SUCCESS - the media was sucessfully
+   * CY_AS_ERROR_SUCCESS - the media was successfully
    *	released
    * CY_AS_ERROR_MEDIA_NOT_CLAIMED - the media was not
    *	claimed by the P port
@@ -1905,7 +1905,7 @@ cy_as_storage_get_transfer_amount(
    differ between SD cards.
 
    A large erase can take a while to complete depending on the SD
-   card. In such a case it is reccomended that an async call is made.
+   card. In such a case it is recommended that an async call is made.
 
    Returns
    * CY_AS_ERROR_SUCCESS - API call completed successfully
@@ -1926,7 +1926,7 @@ cy_as_storage_get_transfer_amount(
    *	required before erase is allowed
    * CY_AS_ERROR_NO_SUCH_BUS
    * CY_AS_ERROR_NO_SUCH_DEVICE
-   * CY_AS_ERROR_NOT_SUPPORTED - Erase is currenly only supported
+   * CY_AS_ERROR_NOT_SUPPORTED - Erase is currently only supported
    *	on SD and using SD only firmware
    * CY_AS_ERROR_OUT_OF_MEMORY
 
@@ -1985,7 +1985,7 @@ cy_as_storage_erase(
    *	type was made
    * CY_AS_ERROR_OUT_OF_MEMORY - insufficient memory available
    * CY_AS_ERROR_INVALID_RESPONSE - an error message was
-   *	recieved from the firmware
+   *	received from the firmware
    * CY_AS_ERROR_MEDIA_ACCESS_FAILURE - there was error in
    *	reading from the media
    * CY_AS_ERROR_INVALID_FUNCTION - An IO attempt was made to
@@ -2047,7 +2047,7 @@ cy_as_sdio_get_c_i_s_info(
    *	pair does not exist
    * CY_AS_ERROR_OUT_OF_MEMORY - insufficient memory available
    * CY_AS_ERROR_INVALID_RESPONSE - an error message was
-   *	recieved from the firmware
+   *	received from the firmware
 
 */
 cy_as_return_status_t
@@ -2095,7 +2095,7 @@ cy_as_sdio_query_card(
    *	pair does not exist
    * CY_AS_ERROR_OUT_OF_MEMORY - insufficient memory available
    * CY_AS_ERROR_INVALID_RESPONSE - an error message was
-   *	recieved from the firmware
+   *	received from the firmware
    */
 cy_as_return_status_t
 cy_as_sdio_reset_card(
@@ -2139,7 +2139,7 @@ cy_as_sdio_reset_card(
    * CY_AS_ERROR_NO_SUCH_DEVICE - the specified media/device pair
    *	does not exist
    * CY_AS_ERROR_OUT_OF_MEMORY - insufficient memory available
-   * CY_AS_ERROR_INVALID_RESPONSE - an error message was recieved
+   * CY_AS_ERROR_INVALID_RESPONSE - an error message was received
    *	from the firmware
    * CY_AS_ERROR_MEDIA_ACCESS_FAILURE - there was error in reading
    *	from the media
@@ -2198,7 +2198,7 @@ cy_as_sdio_direct_read(
    * CY_AS_ERROR_NO_SUCH_DEVICE - the specified media/device
    * pair does not exist
    * CY_AS_ERROR_OUT_OF_MEMORY - insufficient memory available
-   * CY_AS_ERROR_INVALID_RESPONSE - an error message was recieved
+   * CY_AS_ERROR_INVALID_RESPONSE - an error message was received
    * from the firmware
    * CY_AS_ERROR_MEDIA_ACCESS_FAILURE - there was error in
    * reading from the media
@@ -2262,7 +2262,7 @@ cy_as_sdio_direct_write(
    * CY_AS_ERROR_OUT_OF_MEMORY - insufficient memory
    *	available
    * CY_AS_ERROR_INVALID_RESPONSE - an error message was
-   *	recieved from the firmware
+   *	received from the firmware
    * CY_AS_ERROR_MEDIA_ACCESS_FAILURE - there was error in
    *	reading from the media
    * CY_AS_ERROR_INVALID_FUNCTION - An IO attempt was made
@@ -2319,7 +2319,7 @@ cy_as_sdio_set_blocksize(
    *	pair does not exist
    * CY_AS_ERROR_ASYNC_PENDING - an async operation is pending
    * CY_AS_ERROR_OUT_OF_MEMORY - insufficient memory available
-   * CY_AS_ERROR_INVALID_RESPONSE - an error message was recieved
+   * CY_AS_ERROR_INVALID_RESPONSE - an error message was received
    *	from the firmware
    * CY_AS_ERROR_MEDIA_ACCESS_FAILURE - there was error in
    *	reading from the media
@@ -2396,7 +2396,7 @@ cy_as_sdio_extended_read(
    * CY_AS_ERROR_ASYNC_PENDING - an async operation is pending
    * CY_AS_ERROR_OUT_OF_MEMORY - insufficient memory available
    * CY_AS_ERROR_INVALID_RESPONSE - an error message was
-   *	recieved from the firmware
+   *	received from the firmware
    * CY_AS_ERROR_MEDIA_ACCESS_FAILURE - there was error in
    *	reading from the media
    * CY_AS_ERROR_INVALID_FUNCTION - An IO attempt was made
@@ -2471,7 +2471,7 @@ cy_as_sdio_extended_write(
    * pair does not exist
    * CY_AS_ERROR_OUT_OF_MEMORY - insufficient memory available
    * CY_AS_ERROR_INVALID_RESPONSE - an error message was
-   *	recieved from the firmware
+   *	received from the firmware
    * CY_AS_ERROR_MEDIA_ACCESS_FAILURE - there was error in
    *	reading from the media
    * CY_AS_ERROR_INVALID_FUNCTION - An IO attempt was made
@@ -2714,7 +2714,7 @@ cy_as_sdio_suspend(
    * CY_AS_ERROR_OUT_OF_MEMORY - insufficient memory
    *	available
    * CY_AS_ERROR_INVALID_RESPONSE - an error message was
-   *	recieved from the firmware
+   *	received from the firmware
    * CY_AS_ERROR_MEDIA_ACCESS_FAILURE - there was error
    *	in reading from the media
    * CY_AS_ERROR_INVALID_FUNCTION - An IO attempt was
diff --git a/drivers/staging/westbridge/astoria/include/linux/westbridge/cyasusb.h b/drivers/staging/westbridge/astoria/include/linux/westbridge/cyasusb.h
index 4a549e146812..e3ba9ca4c75f 100644
--- a/drivers/staging/westbridge/astoria/include/linux/westbridge/cyasusb.h
+++ b/drivers/staging/westbridge/astoria/include/linux/westbridge/cyasusb.h
@@ -464,7 +464,7 @@ typedef struct cy_as_usb_end_point_config {
    be selected on a partitioned storage device.
 
    Description
-   West Bridge firmware supports creating upto two
+   West Bridge firmware supports creating up to two
    partitions on mass storage devices connected to
    West Bridge.  When there are two partitions on a device,
    the user can choose which of these partitions should be
@@ -698,7 +698,7 @@ cy_as_usb_start(
    *	been configured
    * CY_AS_ERROR_NO_FIRMWARE - the firmware has not been loaded
    *	into West Bridge
-   * CY_AS_ERROR_SUCCESS - this module was shut down sucessfully
+   * CY_AS_ERROR_SUCCESS - this module was shut down successfully
    * CY_AS_ERROR_TIMEOUT - a timeout occurred communicating with
    *	the West Bridge device
 
@@ -752,7 +752,7 @@ cy_as_usb_register_callback(
    * Nestable: YES
 
    Returns
-   * CY_AS_ERROR_SUCCESS - this module was shut down sucessfully
+   * CY_AS_ERROR_SUCCESS - this module was shut down successfully
    * CY_AS_ERROR_NOT_CONFIGURED - the West Bridge device has not
    *	been configured
    * CY_AS_ERROR_NO_FIRMWARE - the firmware has not been loaded
@@ -791,7 +791,7 @@ cy_as_usb_connect(
    * Nestable: YES
 
    Returns
-   * CY_AS_ERROR_SUCCESS - this module was shut down sucessfully
+   * CY_AS_ERROR_SUCCESS - this module was shut down successfully
    * CY_AS_ERROR_NOT_CONFIGURED - the West Bridge device has not
    *	been configured
    * CY_AS_ERROR_NO_FIRMWARE - the firmware has not been loaded
@@ -825,7 +825,7 @@ cy_as_usb_disconnect(
    * Valid In Asynchronous Callback: Yes (if cb supplied)
 
    Returns
-   * CY_AS_ERROR_SUCCESS - this module was shut down sucessfully
+   * CY_AS_ERROR_SUCCESS - this module was shut down successfully
    * CY_AS_ERROR_NOT_CONFIGURED - the West Bridge device has not
    *	been configured
    * CY_AS_ERROR_NO_FIRMWARE - the firmware has not been loaded
@@ -855,13 +855,13 @@ cy_as_usb_set_enum_config(
    the USB stack
 
    Description
-   This function sends a request to West Bridge to retreive
+   This function sends a request to West Bridge to retrieve
    the current configuration
 
    * Valid In Asynchronous Callback: Yes (if cb supplied)
 
    Returns
-   * CY_AS_ERROR_SUCCESS - this module was shut down sucessfully
+   * CY_AS_ERROR_SUCCESS - this module was shut down successfully
    * CY_AS_ERROR_NOT_CONFIGURED - the West Bridge device has not
    *	been configured
    * CY_AS_ERROR_NO_FIRMWARE - the firmware has not been loaded
@@ -906,7 +906,7 @@ cy_as_usb_get_enum_config(
    Chapter 9.
 
    Returns
-   * CY_AS_ERROR_SUCCESS - this module was shut down sucessfully
+   * CY_AS_ERROR_SUCCESS - this module was shut down successfully
    * CY_AS_ERROR_NOT_CONFIGURED - the West Bridge device has not
    *	been configured
    * CY_AS_ERROR_NO_FIRMWARE - the firmware has not been loaded
@@ -993,7 +993,7 @@ cy_as_usb_clear_descriptors(
    Description
    This data structure the buffer to hold the descriptor
    data, and an in/out parameter ti indicate the
-   lenght of the buffer and descriptor data in bytes.
+   length of the buffer and descriptor data in bytes.
 
    See Also
    * CyAsUsbGetDescriptor
@@ -1027,7 +1027,7 @@ typedef struct cy_as_get_descriptor_data {
    Chapter 9.
 
    Returns
-   * CY_AS_ERROR_SUCCESS - this module was shut down sucessfully
+   * CY_AS_ERROR_SUCCESS - this module was shut down successfully
    * CY_AS_ERROR_NOT_CONFIGURED - the West Bridge device has not
    *	been configured
    * CY_AS_ERROR_NO_FIRMWARE - the firmware has not been loaded
@@ -1106,7 +1106,7 @@ cy_as_usb_get_descriptor(
    * Valid In Asynchronous Callback: NO
 
    Returns
-   * CY_AS_ERROR_SUCCESS - this module was shut down sucessfully
+   * CY_AS_ERROR_SUCCESS - this module was shut down successfully
    * CY_AS_ERROR_NOT_CONFIGURED - the West Bridge device has not
    *	been configured
    * CY_AS_ERROR_NO_FIRMWARE - the firmware has not been loaded
@@ -1140,7 +1140,7 @@ cy_as_usb_set_physical_configuration(
    Add documentation about endpoint configuration limitations
 
    Returns
-   * CY_AS_ERROR_SUCCESS - this module was shut down sucessfully
+   * CY_AS_ERROR_SUCCESS - this module was shut down successfully
    * CY_AS_ERROR_NOT_CONFIGURED - the West Bridge device has not
    *	been configured
    * CY_AS_ERROR_NO_FIRMWARE - the firmware has not been loaded
@@ -1181,7 +1181,7 @@ cy_as_usb_set_end_point_config(
    * Valid In Asynchronous Callback: NO
 
    Returns
-   * CY_AS_ERROR_SUCCESS - this module was shut down sucessfully
+   * CY_AS_ERROR_SUCCESS - this module was shut down successfully
    * CY_AS_ERROR_NOT_CONFIGURED - the West Bridge device has not
    *	been configured
    * CY_AS_ERROR_NO_FIRMWARE - the firmware has not been loaded
@@ -1219,7 +1219,7 @@ cy_as_usb_get_end_point_config(
    functions store away the configuration information and this
    CyAsUsbCommitConfig() actually finds the
    best hardware configuration based on the requested endpoint
-   configuration and sends thsi optimal
+   configuration and sends this optimal
    confiuration down to the West Bridge device.
 
    * Valid In Asynchronous Callback: YES (if cb supplied)
@@ -1268,7 +1268,7 @@ cy_as_usb_commit_config(
    * Valid In Asynchronous Callback: NO
 
    Returns
-   * CY_AS_ERROR_SUCCESS - this module was shut down sucessfully
+   * CY_AS_ERROR_SUCCESS - this module was shut down successfully
    * CY_AS_ERROR_TIMEOUT - a timeout occurred communicating with
    *	the West Bridge device
    * CY_AS_ERROR_NOT_RUNNING - the USB stack is not running
@@ -1311,7 +1311,7 @@ cy_as_usb_read_data(
    * Valid In Asynchronous Callback: YES
 
    Returns
-   * CY_AS_ERROR_SUCCESS - this module was shut down sucessfully
+   * CY_AS_ERROR_SUCCESS - this module was shut down successfully
    * CY_AS_ERROR_TIMEOUT - a timeout occurred communicating with
    *	the West Bridge device
    * CY_AS_ERROR_NOT_RUNNING - the USB stack is not running
@@ -1355,7 +1355,7 @@ cy_as_usb_read_data_async(
    a zero length packet transmitted to the USB host.
 
    Returns
-   * CY_AS_ERROR_SUCCESS - this module was shut down sucessfully
+   * CY_AS_ERROR_SUCCESS - this module was shut down successfully
    * CY_AS_ERROR_TIMEOUT - a timeout occurred communicating with
    *	the West Bridge device
    * CY_AS_ERROR_NOT_RUNNING - the USB stack is not running
@@ -1395,7 +1395,7 @@ cy_as_usb_write_data(
    in a zero length packet transmitted to the USB host.
 
    Returns
-   * CY_AS_ERROR_SUCCESS - this module was shut down sucessfully
+   * CY_AS_ERROR_SUCCESS - this module was shut down successfully
    * CY_AS_ERROR_TIMEOUT - a timeout occurred communicating with
    *	the West Bridge device
    * CY_AS_ERROR_NOT_RUNNING - the USB stack is not running
@@ -1435,7 +1435,7 @@ cy_as_usb_write_data_async(
 
    Returns
    * CY_AS_ERROR_SUCCESS - this module was shut down
-   *	sucessfully
+   *	successfully
    * CY_AS_ERROR_NOT_RUNNING - the USB stack is not
    *	running
    * CY_AS_ERROR_ASYNC_NOT_PENDING - no asynchronous USB
@@ -1791,7 +1791,7 @@ cy_as_usb_set_m_s_report_threshold(
    device should be made visible to USB.
 
    Description
-   West Bridge firmware supports the creation of upto two
+   West Bridge firmware supports the creation of up to two
    partitions on mass storage devices connected to the West Bridge
    device.  When there are two partitions on a device, the user can
    choose which of these partitions should be made visible to the
diff --git a/drivers/staging/winbond/mds.c b/drivers/staging/winbond/mds.c
index 9cfea94bcea5..c9f0e8f856a0 100644
--- a/drivers/staging/winbond/mds.c
+++ b/drivers/staging/winbond/mds.c
@@ -492,7 +492,7 @@ Mds_Tx(struct wbsoft_priv *adapter)
 
 			TxDesIndex = pMds->TxDesIndex; /* Get the current ID */
 			pTxDes->Descriptor_ID = TxDesIndex;
-			pMds->TxDesFrom[TxDesIndex] = 2; /* Storing the information of source comming from */
+			pMds->TxDesFrom[TxDesIndex] = 2; /* Storing the information of source coming from */
 			pMds->TxDesIndex++;
 			pMds->TxDesIndex %= MAX_USB_TX_DESCRIPTOR;
 
diff --git a/drivers/staging/wlags49_h2/README.ubuntu b/drivers/staging/wlags49_h2/README.ubuntu
index 47beaec86e4a..edee8b9385be 100644
--- a/drivers/staging/wlags49_h2/README.ubuntu
+++ b/drivers/staging/wlags49_h2/README.ubuntu
@@ -116,7 +116,7 @@ LICENSE
 
 The Agere Systems license applies. This is why I include the original
 README.wlags49. The instructions in that file are bogus now. I also
-include the man page. Eventhough setting parameters on the module
+include the man page. Even though setting parameters on the module
 does not work anymore but it provides some information about all the
 settings.
 
diff --git a/drivers/staging/wlags49_h2/TODO b/drivers/staging/wlags49_h2/TODO
index 14aa415b1a82..94032b6ac2b5 100644
--- a/drivers/staging/wlags49_h2/TODO
+++ b/drivers/staging/wlags49_h2/TODO
@@ -1,7 +1,7 @@
 First of all, the best thing would be that this driver becomes obsolte by
 adding support for Hermes II and Hermes II.5 cards to the existing orinoco
 driver. The orinoco driver currently only supports Hermes I based cards.
-Since this will not happen by magic and has not happend until now this
+Since this will not happen by magic and has not happened until now this
 driver provides a stop-gap solution for these type of cards.
 
 Having said that, the following wishlist comes to mind to make the driver
@@ -18,7 +18,7 @@ TODO:
 	- the driver is split into a Hermes II and a Hermes II.5 part, it
 	  would be nice to handle both with one module instead of two
 	- review by the wireless developer community
-	- verify the code against the coding standards for a propper linux
+	- verify the code against the coding standards for a proper linux
 	  driver
 	- resolve license issues (?)
 
diff --git a/drivers/staging/wlags49_h2/hcf.c b/drivers/staging/wlags49_h2/hcf.c
index d4bdd3ee8be1..a73317ef9350 100644
--- a/drivers/staging/wlags49_h2/hcf.c
+++ b/drivers/staging/wlags49_h2/hcf.c
@@ -540,7 +540,7 @@ HCF_STATIC hcf_16* BASED xxxx[ ] = {
 *
 *.CONDITIONS
 * Except for hcf_action with HCF_ACT_INT_FORCE_ON or HCF_ACT_INT_OFF as parameter or hcf_connect with an I/O
-* address (i.e. not HCF_DISCONNECT), all hcf-function calls MUST be preceeded by a call of hcf_action with
+* address (i.e. not HCF_DISCONNECT), all hcf-function calls MUST be preceded by a call of hcf_action with
 * HCF_ACT_INT_OFF as parameter.
 * Note that hcf_connect defaults to NIC interrupt disabled mode, i.e. as if hcf_action( HCF_ACT_INT_OFF )
 * was called.
@@ -843,7 +843,7 @@ hcf_16	i;
 *.MODULE		int hcf_cntl( IFBP ifbp, hcf_16 cmd )
 *.PURPOSE		Connect or disconnect a specific port to a specific network.
 *!!  ;???????????????? continue needs more explanation
-*				recovers by means of "continue" when the connect proces in CCX mode fails
+*				recovers by means of "continue" when the connect process in CCX mode fails
 *				Enables or disables data transmission and reception for the NIC.
 *				Activates static NIC configuration for a specific port at connect.
 *				Activates static configuration for all ports at enable.
@@ -1170,12 +1170,12 @@ LTV_STRCT	x;
 		io_addr = io_base;
 	}
 
-#if 0 //;? if a subsequent hcf_connect is preceeded by an hcf_disconnect the wakeup is not needed !!
+#if 0 //;? if a subsequent hcf_connect is preceded by an hcf_disconnect the wakeup is not needed !!
 #if HCF_SLEEP
     OUT_PORT_WORD( .....+HREG_IO, HREG_IO_WAKEUP_ASYNC ); 	    //OPW not yet useable
 	MSF_WAIT(800);								// MSF-defined function to wait n microseconds.
 	note that MSF_WAIT uses not yet defined!!!! IFB_IOBase and IFB_TickIni (via PROT_CNT_INI)
-	so be carefull if this code is restored
+	so be careful if this code is restored
 #endif // HCF_SLEEP
 #endif // 0
 
@@ -1563,7 +1563,7 @@ DESC_STRCT *p = descp->next_desc_addr;	//pointer to 2nd descriptor of frame
 * This function is called by the MSF to supply the HCF with new/more buffers for receive purposes.
 * The HCF can be used in 2 fashions: with and without encapsulation for data transfer.
 * This is controlled at compile time by the HCF_ENC bit of the HCF_ENCAP system constant.
-* As a consequence, some additional constaints apply to the number of descriptor and the buffers associated
+* As a consequence, some additional constraints apply to the number of descriptor and the buffers associated
 * with the first 2 descriptors. Independent of the encapsulation feature, the COUNT fields are ignored.
 * A special case is the supplying of the DELWA descriptor, which must be supplied as the first descriptor.
 *
@@ -1735,7 +1735,7 @@ DESC_STRCT *descp;	// pointer to start of FrameList
 * - in case encapsulation by the HCF is selected:
 *	  -	The FrameList does not consists of at least 2 Descriptors.
 *	  -	The first databuffer does not contain exactly the (space for) the 802.11 header (== 28 words)
-*	  -	The first databuffer does not have a size to additionally accomodate the 802.3 header and the
+*	  -	The first databuffer does not have a size to additionally accommodate the 802.3 header and the
 *		SNAP header of the frame after encapsulation (== 39 words).
 *	  -	The second databuffer does not contain at least DA, SA and 'type/length' (==14 bytes or 7 words)
 *!! The 2nd part of the list of asserts should be kept in sync with put_frame_lst, in order to get
@@ -1762,14 +1762,14 @@ DESC_STRCT *descp;	// pointer to start of FrameList
 *	- Copy DA/SA fields from the 2nd buffer
 *   - Calculate total length of the message (snap-header + type-field + the length of all buffer fragments
 *     associated with the 802.3 frame (i.e all descriptors except the first), but not the DestinationAddress,
-*     SourceAddress and lenght-field)
+*     SourceAddress and length-field)
 *     Assert the message length
 *	  Write length. Note that the message is in BE format, hence on LE platforms the length must be converted
 *	  ;? THIS IS NOT WHAT CURRENTLY IS IMPLEMENTED
 *	- Write snap header. Note that the last byte of the snap header is NOT copied, that byte is already in
 *	  place as result of the call to hcf_encap.
 *	Note that there are many ways to skin a cat. To express the offsets in the 1st buffer while writing
-*	the snap header, HFS_TYPE is choosen as a reference point to make it easier to grasp that the snap header
+*	the snap header, HFS_TYPE is chosen as a reference point to make it easier to grasp that the snap header
 *	and encapsualtion type are at least relative in the right.
 *8:	modify 1st descriptor to reflect moved part of the 802.3 header + Snap-header
 *	modify 2nd descriptor to skip the moved part of the 802.3 header (DA/SA
@@ -1933,7 +1933,7 @@ hcf_16	t = (hcf_16)(*type<<8) + *(type+1);																/* 2 */
 *	HCF_SUCCESS			Success
 *!!	via cmd_exe ( type >= CFG_RID_FW_MIN )
 *	HCF_ERR_NO_NIC		NIC removed during retrieval
-*	HCF_ERR_TIME_OUT	Expected Hermes event did not occure in expected time
+*	HCF_ERR_TIME_OUT	Expected Hermes event did not occur in expected time
 *!!	via cmd_exe and setup_bap (type >= CFG_RID_FW_MIN )
 *	HCF_ERR_DEFUNCT_...	HCF is in defunct mode (bits 0x7F reflect cause)
 *
@@ -2958,7 +2958,7 @@ or
 *	hcf_service_nic is also skipped in those cases.
 *	To prevent that hcf_service_nic reports bogus information to the MSF with all - possibly difficult to
 *	debug - undesirable side effects, it is paramount to check the NIC presence. In former days the presence
-*	test was based on the Hermes register HREG_SW_0. Since in HCF_ACT_INT_OFF is choosen for strategy based on
+*	test was based on the Hermes register HREG_SW_0. Since in HCF_ACT_INT_OFF is chosen for strategy based on
 *	HREG_EV_STAT, this is now also used in hcf_service_nic. The motivation to change strategy is partly
 *	due to inconsistent F/W implementations with respect to HREG_SW_0 manipulation around reset and download.
 *	Note that in polled environments Card Removal is not detected by INT_OFF which makes the check in
@@ -4048,7 +4048,7 @@ hcf_32 FAR	*p4; //prevent side effects from macro
 	HCFASSERT( word_len == 0 || word_len == 2 || word_len == 4, word_len )
 	HCFASSERT( word_len == 0 || ((hcf_32)bufp & 1 ) == 0, (hcf_32)bufp )
 	HCFASSERT( word_len <= len, MERGE2( word_len, len ) )
-	//see put_frag for an alternative implementation, but be carefull about what are int's and what are
+	//see put_frag for an alternative implementation, but be careful about what are int's and what are
 	//hcf_16's
 	if ( word_len ) {								//.  if there is anything to convert
 hcf_8 c;
@@ -4712,7 +4712,7 @@ int rc = HCF_SUCCESS;
 *	Note that len is unsigned, so even MSF I/F violation works out O.K.
 *	The '2' in the expression "len+2" is used because 1 word is needed for L itself and 1 word is needed
 *	for the zero-sentinel
-*8:	update MailBox Info length report to MSF with "oldest" MB Info Block size. Be carefull here, if you get
+*8:	update MailBox Info length report to MSF with "oldest" MB Info Block size. Be careful here, if you get
 *	here before the MailBox is registered, you can't read from the buffer addressed by IFB_MBp (it is the
 *	Null buffer) so don't move this code till the end of this routine but keep it where there is garuanteed
 *	a buffer.
diff --git a/drivers/staging/wlags49_h2/hcfdef.h b/drivers/staging/wlags49_h2/hcfdef.h
index 4e20171b7829..cb1966d8473f 100644
--- a/drivers/staging/wlags49_h2/hcfdef.h
+++ b/drivers/staging/wlags49_h2/hcfdef.h
@@ -315,7 +315,7 @@ err: these values should match;
 
 #if HCF_DMA
 //************************* DMA (bus mastering)
-	// Be carefull to use these registers only at a genuine 32 bits NIC
+	// Be careful to use these registers only at a genuine 32 bits NIC
 	// On 16 bits NICs, these addresses are mapped into the range 0x00 through 0x3F with all consequences
 	// thereof, e.g.  HREG_DMA_CTRL register maps to HREG_CMD.
 #define HREG_DMA_CTRL						0x0040
diff --git a/drivers/staging/wlags49_h2/wl_wext.c b/drivers/staging/wlags49_h2/wl_wext.c
index 9e5da0815371..522a31090c58 100644
--- a/drivers/staging/wlags49_h2/wl_wext.c
+++ b/drivers/staging/wlags49_h2/wl_wext.c
@@ -2575,7 +2575,7 @@ static int wireless_set_scan(struct net_device *dev, struct iw_request_info *inf
          * This looks like a nice place to test if the HCF is still
          * communicating with the card. It seems that sometimes BAP_1
          * gets corrupted. By looking at the comments in HCF the
-         * cause is still a mistery. Okay, the communication to the
+         * cause is still a mystery. Okay, the communication to the
          * card is dead, reset the card to revive.
          */
 	if((lp->hcfCtx.IFB_CardStat & CARD_STAT_DEFUNCT) != 0)
@@ -3924,7 +3924,7 @@ void wl_wext_event_mic_failed( struct net_device *dev )
 	memset( msg, 0, sizeof( msg ));
 
 
-	/* Becuase MIC failures are not part of the Wireless Extensions yet, they
+	/* Because MIC failures are not part of the Wireless Extensions yet, they
 	   must be passed as a string using an IWEVCUSTOM event. In order for the
 	   event to be effective, the string format must be known by both the
 	   driver and the supplicant. The following is the string format used by the
@@ -3999,7 +3999,7 @@ void wl_wext_event_assoc_ie( struct net_device *dev )
 		memcpy( &data.rawData, &( lp->ltvRecord.u.u8[1] ), 88 );
 		wpa_ie = wl_parse_wpa_ie( &data, &length );
 
-		/* Becuase this event (Association WPA-IE) is not part of the Wireless
+		/* Because this event (Association WPA-IE) is not part of the Wireless
 		Extensions yet, it must be passed as a string using an IWEVCUSTOM event.
 		In order for the event to be effective, the string format must be known
 		by both the driver and the supplicant. The following is the string format
diff --git a/drivers/staging/wlags49_h25/TODO b/drivers/staging/wlags49_h25/TODO
index 14aa415b1a82..94032b6ac2b5 100644
--- a/drivers/staging/wlags49_h25/TODO
+++ b/drivers/staging/wlags49_h25/TODO
@@ -1,7 +1,7 @@
 First of all, the best thing would be that this driver becomes obsolte by
 adding support for Hermes II and Hermes II.5 cards to the existing orinoco
 driver. The orinoco driver currently only supports Hermes I based cards.
-Since this will not happen by magic and has not happend until now this
+Since this will not happen by magic and has not happened until now this
 driver provides a stop-gap solution for these type of cards.
 
 Having said that, the following wishlist comes to mind to make the driver
@@ -18,7 +18,7 @@ TODO:
 	- the driver is split into a Hermes II and a Hermes II.5 part, it
 	  would be nice to handle both with one module instead of two
 	- review by the wireless developer community
-	- verify the code against the coding standards for a propper linux
+	- verify the code against the coding standards for a proper linux
 	  driver
 	- resolve license issues (?)
 
diff --git a/drivers/staging/wlan-ng/prism2sta.c b/drivers/staging/wlan-ng/prism2sta.c
index ed751f418db9..21f25a21c291 100644
--- a/drivers/staging/wlan-ng/prism2sta.c
+++ b/drivers/staging/wlan-ng/prism2sta.c
@@ -1976,7 +1976,7 @@ static wlandevice_t *create_wlan(void)
 
 	wlandev->nsdcaps = P80211_NSDCAP_HWFRAGMENT | P80211_NSDCAP_AUTOJOIN;
 
-	/* Initialize the device private data stucture. */
+	/* Initialize the device private data structure. */
 	hw->dot11_desired_bss_type = 1;
 
 	return wlandev;
diff --git a/drivers/staging/xgifb/vb_setmode.c b/drivers/staging/xgifb/vb_setmode.c
index 8762a5327693..9669c22cc82c 100644
--- a/drivers/staging/xgifb/vb_setmode.c
+++ b/drivers/staging/xgifb/vb_setmode.c
@@ -7834,7 +7834,7 @@ unsigned short XGI_GetRatePtrCRT2(struct xgi_hw_device_info *pXGIHWDE,
 						== 600)) {
 			index++;
 		}
-		/* Alan 10/19/2007; do the similiar adjustment like XGISearchCRT1Rate() */
+		/* Alan 10/19/2007; do the similar adjustment like XGISearchCRT1Rate() */
 		if ((pVBInfo->RefIndex[RefreshRateTableIndex].XRes == 1024)
 				&& (pVBInfo->RefIndex[RefreshRateTableIndex].YRes
 						== 768)) {
diff --git a/drivers/staging/xgifb/vgatypes.h b/drivers/staging/xgifb/vgatypes.h
index 4b87951f4322..d613e84aab62 100644
--- a/drivers/staging/xgifb/vgatypes.h
+++ b/drivers/staging/xgifb/vgatypes.h
@@ -85,7 +85,7 @@ struct xgi_hw_device_info
 					    unsigned long *);
 };
 
-/* Addtional IOCTL for communication xgifb <> X driver        */
+/* Additional IOCTL for communication xgifb <> X driver        */
 /* If changing this, xgifb.h must also be changed (for xgifb) */
 
 
diff --git a/drivers/target/Kconfig b/drivers/target/Kconfig
index 2fac3be209ac..9ef2dbbfa62b 100644
--- a/drivers/target/Kconfig
+++ b/drivers/target/Kconfig
@@ -29,4 +29,6 @@ config TCM_PSCSI
 	Say Y here to enable the TCM/pSCSI subsystem plugin for non-buffered
 	passthrough access to Linux/SCSI device
 
+source "drivers/target/loopback/Kconfig"
+
 endif
diff --git a/drivers/target/Makefile b/drivers/target/Makefile
index 973bb190ef57..1178bbfc68fe 100644
--- a/drivers/target/Makefile
+++ b/drivers/target/Makefile
@@ -1,4 +1,3 @@
-EXTRA_CFLAGS += -I$(srctree)/drivers/target/ -I$(srctree)/drivers/scsi/
 
 target_core_mod-y		:= target_core_configfs.o \
 				   target_core_device.o \
@@ -13,7 +12,8 @@ target_core_mod-y		:= target_core_configfs.o \
 				   target_core_transport.o \
 				   target_core_cdb.o \
 				   target_core_ua.o \
-				   target_core_rd.o
+				   target_core_rd.o \
+				   target_core_stat.o
 
 obj-$(CONFIG_TARGET_CORE)	+= target_core_mod.o
 
@@ -21,3 +21,6 @@ obj-$(CONFIG_TARGET_CORE)	+= target_core_mod.o
 obj-$(CONFIG_TCM_IBLOCK)	+= target_core_iblock.o
 obj-$(CONFIG_TCM_FILEIO)	+= target_core_file.o
 obj-$(CONFIG_TCM_PSCSI)		+= target_core_pscsi.o
+
+# Fabric modules
+obj-$(CONFIG_LOOPBACK_TARGET)	+= loopback/
diff --git a/drivers/target/loopback/Kconfig b/drivers/target/loopback/Kconfig
new file mode 100644
index 000000000000..57dcbc2d711b
--- /dev/null
+++ b/drivers/target/loopback/Kconfig
@@ -0,0 +1,11 @@
+config LOOPBACK_TARGET
+	tristate "TCM Virtual SAS target and Linux/SCSI LDD fabric loopback module"
+	help
+	  Say Y here to enable the TCM Virtual SAS target and Linux/SCSI LLD
+	  fabric loopback module.
+
+config LOOPBACK_TARGET_CDB_DEBUG
+	bool "TCM loopback fabric module CDB debug code"
+	depends on LOOPBACK_TARGET
+	help
+	  Say Y here to enable the TCM loopback fabric module CDB debug code
diff --git a/drivers/target/loopback/Makefile b/drivers/target/loopback/Makefile
new file mode 100644
index 000000000000..6abebdf95659
--- /dev/null
+++ b/drivers/target/loopback/Makefile
@@ -0,0 +1 @@
+obj-$(CONFIG_LOOPBACK_TARGET)	+= tcm_loop.o
diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c
new file mode 100644
index 000000000000..aed4e464d31c
--- /dev/null
+++ b/drivers/target/loopback/tcm_loop.c
@@ -0,0 +1,1579 @@
+/*******************************************************************************
+ *
+ * This file contains the Linux/SCSI LLD virtual SCSI initiator driver
+ * for emulated SAS initiator ports
+ *
+ * © Copyright 2011 RisingTide Systems LLC.
+ *
+ * Licensed to the Linux Foundation under the General Public License (GPL) version 2.
+ *
+ * Author: Nicholas A. Bellinger <nab@risingtidesystems.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ ****************************************************************************/
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+#include <linux/configfs.h>
+#include <scsi/scsi.h>
+#include <scsi/scsi_tcq.h>
+#include <scsi/scsi_host.h>
+#include <scsi/scsi_device.h>
+#include <scsi/scsi_cmnd.h>
+#include <scsi/libsas.h> /* For TASK_ATTR_* */
+
+#include <target/target_core_base.h>
+#include <target/target_core_transport.h>
+#include <target/target_core_fabric_ops.h>
+#include <target/target_core_fabric_configfs.h>
+#include <target/target_core_fabric_lib.h>
+#include <target/target_core_configfs.h>
+#include <target/target_core_device.h>
+#include <target/target_core_tpg.h>
+#include <target/target_core_tmr.h>
+
+#include "tcm_loop.h"
+
+#define to_tcm_loop_hba(hba)	container_of(hba, struct tcm_loop_hba, dev)
+
+/* Local pointer to allocated TCM configfs fabric module */
+static struct target_fabric_configfs *tcm_loop_fabric_configfs;
+
+static struct kmem_cache *tcm_loop_cmd_cache;
+
+static int tcm_loop_hba_no_cnt;
+
+/*
+ * Allocate a tcm_loop cmd descriptor from target_core_mod code
+ *
+ * Can be called from interrupt context in tcm_loop_queuecommand() below
+ */
+static struct se_cmd *tcm_loop_allocate_core_cmd(
+	struct tcm_loop_hba *tl_hba,
+	struct se_portal_group *se_tpg,
+	struct scsi_cmnd *sc)
+{
+	struct se_cmd *se_cmd;
+	struct se_session *se_sess;
+	struct tcm_loop_nexus *tl_nexus = tl_hba->tl_nexus;
+	struct tcm_loop_cmd *tl_cmd;
+	int sam_task_attr;
+
+	if (!tl_nexus) {
+		scmd_printk(KERN_ERR, sc, "TCM_Loop I_T Nexus"
+				" does not exist\n");
+		set_host_byte(sc, DID_ERROR);
+		return NULL;
+	}
+	se_sess = tl_nexus->se_sess;
+
+	tl_cmd = kmem_cache_zalloc(tcm_loop_cmd_cache, GFP_ATOMIC);
+	if (!tl_cmd) {
+		printk(KERN_ERR "Unable to allocate struct tcm_loop_cmd\n");
+		set_host_byte(sc, DID_ERROR);
+		return NULL;
+	}
+	se_cmd = &tl_cmd->tl_se_cmd;
+	/*
+	 * Save the pointer to struct scsi_cmnd *sc
+	 */
+	tl_cmd->sc = sc;
+	/*
+	 * Locate the SAM Task Attr from struct scsi_cmnd *
+	 */
+	if (sc->device->tagged_supported) {
+		switch (sc->tag) {
+		case HEAD_OF_QUEUE_TAG:
+			sam_task_attr = TASK_ATTR_HOQ;
+			break;
+		case ORDERED_QUEUE_TAG:
+			sam_task_attr = TASK_ATTR_ORDERED;
+			break;
+		default:
+			sam_task_attr = TASK_ATTR_SIMPLE;
+			break;
+		}
+	} else
+		sam_task_attr = TASK_ATTR_SIMPLE;
+
+	/*
+	 * Initialize struct se_cmd descriptor from target_core_mod infrastructure
+	 */
+	transport_init_se_cmd(se_cmd, se_tpg->se_tpg_tfo, se_sess,
+			scsi_bufflen(sc), sc->sc_data_direction, sam_task_attr,
+			&tl_cmd->tl_sense_buf[0]);
+
+	/*
+	 * Signal BIDI usage with T_TASK(cmd)->t_tasks_bidi
+	 */
+	if (scsi_bidi_cmnd(sc))
+		T_TASK(se_cmd)->t_tasks_bidi = 1;
+	/*
+	 * Locate the struct se_lun pointer and attach it to struct se_cmd
+	 */
+	if (transport_get_lun_for_cmd(se_cmd, NULL, tl_cmd->sc->device->lun) < 0) {
+		kmem_cache_free(tcm_loop_cmd_cache, tl_cmd);
+		set_host_byte(sc, DID_NO_CONNECT);
+		return NULL;
+	}
+
+	transport_device_setup_cmd(se_cmd);
+	return se_cmd;
+}
+
+/*
+ * Called by struct target_core_fabric_ops->new_cmd_map()
+ *
+ * Always called in process context.  A non zero return value
+ * here will signal to handle an exception based on the return code.
+ */
+static int tcm_loop_new_cmd_map(struct se_cmd *se_cmd)
+{
+	struct tcm_loop_cmd *tl_cmd = container_of(se_cmd,
+				struct tcm_loop_cmd, tl_se_cmd);
+	struct scsi_cmnd *sc = tl_cmd->sc;
+	void *mem_ptr, *mem_bidi_ptr = NULL;
+	u32 sg_no_bidi = 0;
+	int ret;
+	/*
+	 * Allocate the necessary tasks to complete the received CDB+data
+	 */
+	ret = transport_generic_allocate_tasks(se_cmd, tl_cmd->sc->cmnd);
+	if (ret == -1) {
+		/* Out of Resources */
+		return PYX_TRANSPORT_LU_COMM_FAILURE;
+	} else if (ret == -2) {
+		/*
+		 * Handle case for SAM_STAT_RESERVATION_CONFLICT
+		 */
+		if (se_cmd->se_cmd_flags & SCF_SCSI_RESERVATION_CONFLICT)
+			return PYX_TRANSPORT_RESERVATION_CONFLICT;
+		/*
+		 * Otherwise, return SAM_STAT_CHECK_CONDITION and return
+		 * sense data.
+		 */
+		return PYX_TRANSPORT_USE_SENSE_REASON;
+	}
+	/*
+	 * Setup the struct scatterlist memory from the received
+	 * struct scsi_cmnd.
+	 */
+	if (scsi_sg_count(sc)) {
+		se_cmd->se_cmd_flags |= SCF_PASSTHROUGH_SG_TO_MEM;
+		mem_ptr = (void *)scsi_sglist(sc);
+		/*
+		 * For BIDI commands, pass in the extra READ buffer
+		 * to transport_generic_map_mem_to_cmd() below..
+		 */
+		if (T_TASK(se_cmd)->t_tasks_bidi) {
+			struct scsi_data_buffer *sdb = scsi_in(sc);
+
+			mem_bidi_ptr = (void *)sdb->table.sgl;
+			sg_no_bidi = sdb->table.nents;
+		}
+	} else {
+		/*
+		 * Used for DMA_NONE
+		 */
+		mem_ptr = NULL;
+	}
+	/*
+	 * Map the SG memory into struct se_mem->page linked list using the same
+	 * physical memory at sg->page_link.
+	 */
+	ret = transport_generic_map_mem_to_cmd(se_cmd, mem_ptr,
+			scsi_sg_count(sc), mem_bidi_ptr, sg_no_bidi);
+	if (ret < 0)
+		return PYX_TRANSPORT_LU_COMM_FAILURE;
+
+	return 0;
+}
+
+/*
+ * Called from struct target_core_fabric_ops->check_stop_free()
+ */
+static void tcm_loop_check_stop_free(struct se_cmd *se_cmd)
+{
+	/*
+	 * Do not release struct se_cmd's containing a valid TMR
+	 * pointer.  These will be released directly in tcm_loop_device_reset()
+	 * with transport_generic_free_cmd().
+	 */
+	if (se_cmd->se_tmr_req)
+		return;
+	/*
+	 * Release the struct se_cmd, which will make a callback to release
+	 * struct tcm_loop_cmd * in tcm_loop_deallocate_core_cmd()
+	 */
+	transport_generic_free_cmd(se_cmd, 0, 1, 0);
+}
+
+/*
+ * Called from struct target_core_fabric_ops->release_cmd_to_pool()
+ */
+static void tcm_loop_deallocate_core_cmd(struct se_cmd *se_cmd)
+{
+	struct tcm_loop_cmd *tl_cmd = container_of(se_cmd,
+				struct tcm_loop_cmd, tl_se_cmd);
+
+	kmem_cache_free(tcm_loop_cmd_cache, tl_cmd);
+}
+
+static int tcm_loop_proc_info(struct Scsi_Host *host, char *buffer,
+				char **start, off_t offset,
+				int length, int inout)
+{
+	return sprintf(buffer, "tcm_loop_proc_info()\n");
+}
+
+static int tcm_loop_driver_probe(struct device *);
+static int tcm_loop_driver_remove(struct device *);
+
+static int pseudo_lld_bus_match(struct device *dev,
+				struct device_driver *dev_driver)
+{
+	return 1;
+}
+
+static struct bus_type tcm_loop_lld_bus = {
+	.name			= "tcm_loop_bus",
+	.match			= pseudo_lld_bus_match,
+	.probe			= tcm_loop_driver_probe,
+	.remove			= tcm_loop_driver_remove,
+};
+
+static struct device_driver tcm_loop_driverfs = {
+	.name			= "tcm_loop",
+	.bus			= &tcm_loop_lld_bus,
+};
+/*
+ * Used with root_device_register() in tcm_loop_alloc_core_bus() below
+ */
+struct device *tcm_loop_primary;
+
+/*
+ * Copied from drivers/scsi/libfc/fc_fcp.c:fc_change_queue_depth() and
+ * drivers/scsi/libiscsi.c:iscsi_change_queue_depth()
+ */
+static int tcm_loop_change_queue_depth(
+	struct scsi_device *sdev,
+	int depth,
+	int reason)
+{
+	switch (reason) {
+	case SCSI_QDEPTH_DEFAULT:
+		scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), depth);
+		break;
+	case SCSI_QDEPTH_QFULL:
+		scsi_track_queue_full(sdev, depth);
+		break;
+	case SCSI_QDEPTH_RAMP_UP:
+		scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), depth);
+		break;
+	default:
+		return -EOPNOTSUPP;
+	}
+	return sdev->queue_depth;
+}
+
+/*
+ * Main entry point from struct scsi_host_template for incoming SCSI CDB+Data
+ * from Linux/SCSI subsystem for SCSI low level device drivers (LLDs)
+ */
+static int tcm_loop_queuecommand(
+	struct Scsi_Host *sh,
+	struct scsi_cmnd *sc)
+{
+	struct se_cmd *se_cmd;
+	struct se_portal_group *se_tpg;
+	struct tcm_loop_hba *tl_hba;
+	struct tcm_loop_tpg *tl_tpg;
+
+	TL_CDB_DEBUG("tcm_loop_queuecommand() %d:%d:%d:%d got CDB: 0x%02x"
+		" scsi_buf_len: %u\n", sc->device->host->host_no,
+		sc->device->id, sc->device->channel, sc->device->lun,
+		sc->cmnd[0], scsi_bufflen(sc));
+	/*
+	 * Locate the tcm_loop_hba_t pointer
+	 */
+	tl_hba = *(struct tcm_loop_hba **)shost_priv(sc->device->host);
+	tl_tpg = &tl_hba->tl_hba_tpgs[sc->device->id];
+	se_tpg = &tl_tpg->tl_se_tpg;
+	/*
+	 * Determine the SAM Task Attribute and allocate tl_cmd and
+	 * tl_cmd->tl_se_cmd from TCM infrastructure
+	 */
+	se_cmd = tcm_loop_allocate_core_cmd(tl_hba, se_tpg, sc);
+	if (!se_cmd) {
+		sc->scsi_done(sc);
+		return 0;
+	}
+	/*
+	 * Queue up the newly allocated to be processed in TCM thread context.
+	*/
+	transport_generic_handle_cdb_map(se_cmd);
+	return 0;
+}
+
+/*
+ * Called from SCSI EH process context to issue a LUN_RESET TMR
+ * to struct scsi_device
+ */
+static int tcm_loop_device_reset(struct scsi_cmnd *sc)
+{
+	struct se_cmd *se_cmd = NULL;
+	struct se_portal_group *se_tpg;
+	struct se_session *se_sess;
+	struct tcm_loop_cmd *tl_cmd = NULL;
+	struct tcm_loop_hba *tl_hba;
+	struct tcm_loop_nexus *tl_nexus;
+	struct tcm_loop_tmr *tl_tmr = NULL;
+	struct tcm_loop_tpg *tl_tpg;
+	int ret = FAILED;
+	/*
+	 * Locate the tcm_loop_hba_t pointer
+	 */
+	tl_hba = *(struct tcm_loop_hba **)shost_priv(sc->device->host);
+	/*
+	 * Locate the tl_nexus and se_sess pointers
+	 */
+	tl_nexus = tl_hba->tl_nexus;
+	if (!tl_nexus) {
+		printk(KERN_ERR "Unable to perform device reset without"
+				" active I_T Nexus\n");
+		return FAILED;
+	}
+	se_sess = tl_nexus->se_sess;
+	/*
+	 * Locate the tl_tpg and se_tpg pointers from TargetID in sc->device->id
+	 */
+	tl_tpg = &tl_hba->tl_hba_tpgs[sc->device->id];
+	se_tpg = &tl_tpg->tl_se_tpg;
+
+	tl_cmd = kmem_cache_zalloc(tcm_loop_cmd_cache, GFP_KERNEL);
+	if (!tl_cmd) {
+		printk(KERN_ERR "Unable to allocate memory for tl_cmd\n");
+		return FAILED;
+	}
+
+	tl_tmr = kzalloc(sizeof(struct tcm_loop_tmr), GFP_KERNEL);
+	if (!tl_tmr) {
+		printk(KERN_ERR "Unable to allocate memory for tl_tmr\n");
+		goto release;
+	}
+	init_waitqueue_head(&tl_tmr->tl_tmr_wait);
+
+	se_cmd = &tl_cmd->tl_se_cmd;
+	/*
+	 * Initialize struct se_cmd descriptor from target_core_mod infrastructure
+	 */
+	transport_init_se_cmd(se_cmd, se_tpg->se_tpg_tfo, se_sess, 0,
+				DMA_NONE, TASK_ATTR_SIMPLE,
+				&tl_cmd->tl_sense_buf[0]);
+	/*
+	 * Allocate the LUN_RESET TMR
+	 */
+	se_cmd->se_tmr_req = core_tmr_alloc_req(se_cmd, (void *)tl_tmr,
+				TMR_LUN_RESET);
+	if (!se_cmd->se_tmr_req)
+		goto release;
+	/*
+	 * Locate the underlying TCM struct se_lun from sc->device->lun
+	 */
+	if (transport_get_lun_for_tmr(se_cmd, sc->device->lun) < 0)
+		goto release;
+	/*
+	 * Queue the TMR to TCM Core and sleep waiting for tcm_loop_queue_tm_rsp()
+	 * to wake us up.
+	 */
+	transport_generic_handle_tmr(se_cmd);
+	wait_event(tl_tmr->tl_tmr_wait, atomic_read(&tl_tmr->tmr_complete));
+	/*
+	 * The TMR LUN_RESET has completed, check the response status and
+	 * then release allocations.
+	 */
+	ret = (se_cmd->se_tmr_req->response == TMR_FUNCTION_COMPLETE) ?
+		SUCCESS : FAILED;
+release:
+	if (se_cmd)
+		transport_generic_free_cmd(se_cmd, 1, 1, 0);
+	else
+		kmem_cache_free(tcm_loop_cmd_cache, tl_cmd);
+	kfree(tl_tmr);
+	return ret;
+}
+
+static int tcm_loop_slave_alloc(struct scsi_device *sd)
+{
+	set_bit(QUEUE_FLAG_BIDI, &sd->request_queue->queue_flags);
+	return 0;
+}
+
+static int tcm_loop_slave_configure(struct scsi_device *sd)
+{
+	return 0;
+}
+
+static struct scsi_host_template tcm_loop_driver_template = {
+	.proc_info		= tcm_loop_proc_info,
+	.proc_name		= "tcm_loopback",
+	.name			= "TCM_Loopback",
+	.queuecommand		= tcm_loop_queuecommand,
+	.change_queue_depth	= tcm_loop_change_queue_depth,
+	.eh_device_reset_handler = tcm_loop_device_reset,
+	.can_queue		= TL_SCSI_CAN_QUEUE,
+	.this_id		= -1,
+	.sg_tablesize		= TL_SCSI_SG_TABLESIZE,
+	.cmd_per_lun		= TL_SCSI_CMD_PER_LUN,
+	.max_sectors		= TL_SCSI_MAX_SECTORS,
+	.use_clustering		= DISABLE_CLUSTERING,
+	.slave_alloc		= tcm_loop_slave_alloc,
+	.slave_configure	= tcm_loop_slave_configure,
+	.module			= THIS_MODULE,
+};
+
+static int tcm_loop_driver_probe(struct device *dev)
+{
+	struct tcm_loop_hba *tl_hba;
+	struct Scsi_Host *sh;
+	int error;
+
+	tl_hba = to_tcm_loop_hba(dev);
+
+	sh = scsi_host_alloc(&tcm_loop_driver_template,
+			sizeof(struct tcm_loop_hba));
+	if (!sh) {
+		printk(KERN_ERR "Unable to allocate struct scsi_host\n");
+		return -ENODEV;
+	}
+	tl_hba->sh = sh;
+
+	/*
+	 * Assign the struct tcm_loop_hba pointer to struct Scsi_Host->hostdata
+	 */
+	*((struct tcm_loop_hba **)sh->hostdata) = tl_hba;
+	/*
+	 * Setup single ID, Channel and LUN for now..
+	 */
+	sh->max_id = 2;
+	sh->max_lun = 0;
+	sh->max_channel = 0;
+	sh->max_cmd_len = TL_SCSI_MAX_CMD_LEN;
+
+	error = scsi_add_host(sh, &tl_hba->dev);
+	if (error) {
+		printk(KERN_ERR "%s: scsi_add_host failed\n", __func__);
+		scsi_host_put(sh);
+		return -ENODEV;
+	}
+	return 0;
+}
+
+static int tcm_loop_driver_remove(struct device *dev)
+{
+	struct tcm_loop_hba *tl_hba;
+	struct Scsi_Host *sh;
+
+	tl_hba = to_tcm_loop_hba(dev);
+	sh = tl_hba->sh;
+
+	scsi_remove_host(sh);
+	scsi_host_put(sh);
+	return 0;
+}
+
+static void tcm_loop_release_adapter(struct device *dev)
+{
+	struct tcm_loop_hba *tl_hba = to_tcm_loop_hba(dev);
+
+	kfree(tl_hba);
+}
+
+/*
+ * Called from tcm_loop_make_scsi_hba() in tcm_loop_configfs.c
+ */
+static int tcm_loop_setup_hba_bus(struct tcm_loop_hba *tl_hba, int tcm_loop_host_id)
+{
+	int ret;
+
+	tl_hba->dev.bus = &tcm_loop_lld_bus;
+	tl_hba->dev.parent = tcm_loop_primary;
+	tl_hba->dev.release = &tcm_loop_release_adapter;
+	dev_set_name(&tl_hba->dev, "tcm_loop_adapter_%d", tcm_loop_host_id);
+
+	ret = device_register(&tl_hba->dev);
+	if (ret) {
+		printk(KERN_ERR "device_register() failed for"
+				" tl_hba->dev: %d\n", ret);
+		return -ENODEV;
+	}
+
+	return 0;
+}
+
+/*
+ * Called from tcm_loop_fabric_init() in tcl_loop_fabric.c to load the emulated
+ * tcm_loop SCSI bus.
+ */
+static int tcm_loop_alloc_core_bus(void)
+{
+	int ret;
+
+	tcm_loop_primary = root_device_register("tcm_loop_0");
+	if (IS_ERR(tcm_loop_primary)) {
+		printk(KERN_ERR "Unable to allocate tcm_loop_primary\n");
+		return PTR_ERR(tcm_loop_primary);
+	}
+
+	ret = bus_register(&tcm_loop_lld_bus);
+	if (ret) {
+		printk(KERN_ERR "bus_register() failed for tcm_loop_lld_bus\n");
+		goto dev_unreg;
+	}
+
+	ret = driver_register(&tcm_loop_driverfs);
+	if (ret) {
+		printk(KERN_ERR "driver_register() failed for"
+				"tcm_loop_driverfs\n");
+		goto bus_unreg;
+	}
+
+	printk(KERN_INFO "Initialized TCM Loop Core Bus\n");
+	return ret;
+
+bus_unreg:
+	bus_unregister(&tcm_loop_lld_bus);
+dev_unreg:
+	root_device_unregister(tcm_loop_primary);
+	return ret;
+}
+
+static void tcm_loop_release_core_bus(void)
+{
+	driver_unregister(&tcm_loop_driverfs);
+	bus_unregister(&tcm_loop_lld_bus);
+	root_device_unregister(tcm_loop_primary);
+
+	printk(KERN_INFO "Releasing TCM Loop Core BUS\n");
+}
+
+static char *tcm_loop_get_fabric_name(void)
+{
+	return "loopback";
+}
+
+static u8 tcm_loop_get_fabric_proto_ident(struct se_portal_group *se_tpg)
+{
+	struct tcm_loop_tpg *tl_tpg =
+			(struct tcm_loop_tpg *)se_tpg->se_tpg_fabric_ptr;
+	struct tcm_loop_hba *tl_hba = tl_tpg->tl_hba;
+	/*
+	 * tl_proto_id is set at tcm_loop_configfs.c:tcm_loop_make_scsi_hba()
+	 * time based on the protocol dependent prefix of the passed configfs group.
+	 *
+	 * Based upon tl_proto_id, TCM_Loop emulates the requested fabric
+	 * ProtocolID using target_core_fabric_lib.c symbols.
+	 */
+	switch (tl_hba->tl_proto_id) {
+	case SCSI_PROTOCOL_SAS:
+		return sas_get_fabric_proto_ident(se_tpg);
+	case SCSI_PROTOCOL_FCP:
+		return fc_get_fabric_proto_ident(se_tpg);
+	case SCSI_PROTOCOL_ISCSI:
+		return iscsi_get_fabric_proto_ident(se_tpg);
+	default:
+		printk(KERN_ERR "Unknown tl_proto_id: 0x%02x, using"
+			" SAS emulation\n", tl_hba->tl_proto_id);
+		break;
+	}
+
+	return sas_get_fabric_proto_ident(se_tpg);
+}
+
+static char *tcm_loop_get_endpoint_wwn(struct se_portal_group *se_tpg)
+{
+	struct tcm_loop_tpg *tl_tpg =
+		(struct tcm_loop_tpg *)se_tpg->se_tpg_fabric_ptr;
+	/*
+	 * Return the passed NAA identifier for the SAS Target Port
+	 */
+	return &tl_tpg->tl_hba->tl_wwn_address[0];
+}
+
+static u16 tcm_loop_get_tag(struct se_portal_group *se_tpg)
+{
+	struct tcm_loop_tpg *tl_tpg =
+		(struct tcm_loop_tpg *)se_tpg->se_tpg_fabric_ptr;
+	/*
+	 * This Tag is used when forming SCSI Name identifier in EVPD=1 0x83
+	 * to represent the SCSI Target Port.
+	 */
+	return tl_tpg->tl_tpgt;
+}
+
+static u32 tcm_loop_get_default_depth(struct se_portal_group *se_tpg)
+{
+	return 1;
+}
+
+static u32 tcm_loop_get_pr_transport_id(
+	struct se_portal_group *se_tpg,
+	struct se_node_acl *se_nacl,
+	struct t10_pr_registration *pr_reg,
+	int *format_code,
+	unsigned char *buf)
+{
+	struct tcm_loop_tpg *tl_tpg =
+			(struct tcm_loop_tpg *)se_tpg->se_tpg_fabric_ptr;
+	struct tcm_loop_hba *tl_hba = tl_tpg->tl_hba;
+
+	switch (tl_hba->tl_proto_id) {
+	case SCSI_PROTOCOL_SAS:
+		return sas_get_pr_transport_id(se_tpg, se_nacl, pr_reg,
+					format_code, buf);
+	case SCSI_PROTOCOL_FCP:
+		return fc_get_pr_transport_id(se_tpg, se_nacl, pr_reg,
+					format_code, buf);
+	case SCSI_PROTOCOL_ISCSI:
+		return iscsi_get_pr_transport_id(se_tpg, se_nacl, pr_reg,
+					format_code, buf);
+	default:
+		printk(KERN_ERR "Unknown tl_proto_id: 0x%02x, using"
+			" SAS emulation\n", tl_hba->tl_proto_id);
+		break;
+	}
+
+	return sas_get_pr_transport_id(se_tpg, se_nacl, pr_reg,
+			format_code, buf);
+}
+
+static u32 tcm_loop_get_pr_transport_id_len(
+	struct se_portal_group *se_tpg,
+	struct se_node_acl *se_nacl,
+	struct t10_pr_registration *pr_reg,
+	int *format_code)
+{
+	struct tcm_loop_tpg *tl_tpg =
+			(struct tcm_loop_tpg *)se_tpg->se_tpg_fabric_ptr;
+	struct tcm_loop_hba *tl_hba = tl_tpg->tl_hba;
+
+	switch (tl_hba->tl_proto_id) {
+	case SCSI_PROTOCOL_SAS:
+		return sas_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,
+					format_code);
+	case SCSI_PROTOCOL_FCP:
+		return fc_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,
+					format_code);
+	case SCSI_PROTOCOL_ISCSI:
+		return iscsi_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,
+					format_code);
+	default:
+		printk(KERN_ERR "Unknown tl_proto_id: 0x%02x, using"
+			" SAS emulation\n", tl_hba->tl_proto_id);
+		break;
+	}
+
+	return sas_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,
+			format_code);
+}
+
+/*
+ * Used for handling SCSI fabric dependent TransportIDs in SPC-3 and above
+ * Persistent Reservation SPEC_I_PT=1 and PROUT REGISTER_AND_MOVE operations.
+ */
+static char *tcm_loop_parse_pr_out_transport_id(
+	struct se_portal_group *se_tpg,
+	const char *buf,
+	u32 *out_tid_len,
+	char **port_nexus_ptr)
+{
+	struct tcm_loop_tpg *tl_tpg =
+			(struct tcm_loop_tpg *)se_tpg->se_tpg_fabric_ptr;
+	struct tcm_loop_hba *tl_hba = tl_tpg->tl_hba;
+
+	switch (tl_hba->tl_proto_id) {
+	case SCSI_PROTOCOL_SAS:
+		return sas_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,
+					port_nexus_ptr);
+	case SCSI_PROTOCOL_FCP:
+		return fc_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,
+					port_nexus_ptr);
+	case SCSI_PROTOCOL_ISCSI:
+		return iscsi_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,
+					port_nexus_ptr);
+	default:
+		printk(KERN_ERR "Unknown tl_proto_id: 0x%02x, using"
+			" SAS emulation\n", tl_hba->tl_proto_id);
+		break;
+	}
+
+	return sas_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,
+			port_nexus_ptr);
+}
+
+/*
+ * Returning (1) here allows for target_core_mod struct se_node_acl to be generated
+ * based upon the incoming fabric dependent SCSI Initiator Port
+ */
+static int tcm_loop_check_demo_mode(struct se_portal_group *se_tpg)
+{
+	return 1;
+}
+
+static int tcm_loop_check_demo_mode_cache(struct se_portal_group *se_tpg)
+{
+	return 0;
+}
+
+/*
+ * Allow I_T Nexus full READ-WRITE access without explict Initiator Node ACLs for
+ * local virtual Linux/SCSI LLD passthrough into VM hypervisor guest
+ */
+static int tcm_loop_check_demo_mode_write_protect(struct se_portal_group *se_tpg)
+{
+	return 0;
+}
+
+/*
+ * Because TCM_Loop does not use explict ACLs and MappedLUNs, this will
+ * never be called for TCM_Loop by target_core_fabric_configfs.c code.
+ * It has been added here as a nop for target_fabric_tf_ops_check()
+ */
+static int tcm_loop_check_prod_mode_write_protect(struct se_portal_group *se_tpg)
+{
+	return 0;
+}
+
+static struct se_node_acl *tcm_loop_tpg_alloc_fabric_acl(
+	struct se_portal_group *se_tpg)
+{
+	struct tcm_loop_nacl *tl_nacl;
+
+	tl_nacl = kzalloc(sizeof(struct tcm_loop_nacl), GFP_KERNEL);
+	if (!tl_nacl) {
+		printk(KERN_ERR "Unable to allocate struct tcm_loop_nacl\n");
+		return NULL;
+	}
+
+	return &tl_nacl->se_node_acl;
+}
+
+static void tcm_loop_tpg_release_fabric_acl(
+	struct se_portal_group *se_tpg,
+	struct se_node_acl *se_nacl)
+{
+	struct tcm_loop_nacl *tl_nacl = container_of(se_nacl,
+				struct tcm_loop_nacl, se_node_acl);
+
+	kfree(tl_nacl);
+}
+
+static u32 tcm_loop_get_inst_index(struct se_portal_group *se_tpg)
+{
+	return 1;
+}
+
+static void tcm_loop_new_cmd_failure(struct se_cmd *se_cmd)
+{
+	/*
+	 * Since TCM_loop is already passing struct scatterlist data from
+	 * struct scsi_cmnd, no more Linux/SCSI failure dependent state need
+	 * to be handled here.
+	 */
+	return;
+}
+
+static int tcm_loop_is_state_remove(struct se_cmd *se_cmd)
+{
+	/*
+	 * Assume struct scsi_cmnd is not in remove state..
+	 */
+	return 0;
+}
+
+static int tcm_loop_sess_logged_in(struct se_session *se_sess)
+{
+	/*
+	 * Assume that TL Nexus is always active
+	 */
+	return 1;
+}
+
+static u32 tcm_loop_sess_get_index(struct se_session *se_sess)
+{
+	return 1;
+}
+
+static void tcm_loop_set_default_node_attributes(struct se_node_acl *se_acl)
+{
+	return;
+}
+
+static u32 tcm_loop_get_task_tag(struct se_cmd *se_cmd)
+{
+	return 1;
+}
+
+static int tcm_loop_get_cmd_state(struct se_cmd *se_cmd)
+{
+	struct tcm_loop_cmd *tl_cmd = container_of(se_cmd,
+			struct tcm_loop_cmd, tl_se_cmd);
+
+	return tl_cmd->sc_cmd_state;
+}
+
+static int tcm_loop_shutdown_session(struct se_session *se_sess)
+{
+	return 0;
+}
+
+static void tcm_loop_close_session(struct se_session *se_sess)
+{
+	return;
+};
+
+static void tcm_loop_stop_session(
+	struct se_session *se_sess,
+	int sess_sleep,
+	int conn_sleep)
+{
+	return;
+}
+
+static void tcm_loop_fall_back_to_erl0(struct se_session *se_sess)
+{
+	return;
+}
+
+static int tcm_loop_write_pending(struct se_cmd *se_cmd)
+{
+	/*
+	 * Since Linux/SCSI has already sent down a struct scsi_cmnd
+	 * sc->sc_data_direction of DMA_TO_DEVICE with struct scatterlist array
+	 * memory, and memory has already been mapped to struct se_cmd->t_mem_list
+	 * format with transport_generic_map_mem_to_cmd().
+	 *
+	 * We now tell TCM to add this WRITE CDB directly into the TCM storage
+	 * object execution queue.
+	 */
+	transport_generic_process_write(se_cmd);
+	return 0;
+}
+
+static int tcm_loop_write_pending_status(struct se_cmd *se_cmd)
+{
+	return 0;
+}
+
+static int tcm_loop_queue_data_in(struct se_cmd *se_cmd)
+{
+	struct tcm_loop_cmd *tl_cmd = container_of(se_cmd,
+				struct tcm_loop_cmd, tl_se_cmd);
+	struct scsi_cmnd *sc = tl_cmd->sc;
+
+	TL_CDB_DEBUG("tcm_loop_queue_data_in() called for scsi_cmnd: %p"
+		     " cdb: 0x%02x\n", sc, sc->cmnd[0]);
+
+	sc->result = SAM_STAT_GOOD;
+	set_host_byte(sc, DID_OK);
+	sc->scsi_done(sc);
+	return 0;
+}
+
+static int tcm_loop_queue_status(struct se_cmd *se_cmd)
+{
+	struct tcm_loop_cmd *tl_cmd = container_of(se_cmd,
+				struct tcm_loop_cmd, tl_se_cmd);
+	struct scsi_cmnd *sc = tl_cmd->sc;
+
+	TL_CDB_DEBUG("tcm_loop_queue_status() called for scsi_cmnd: %p"
+			" cdb: 0x%02x\n", sc, sc->cmnd[0]);
+
+	if (se_cmd->sense_buffer &&
+	   ((se_cmd->se_cmd_flags & SCF_TRANSPORT_TASK_SENSE) ||
+	    (se_cmd->se_cmd_flags & SCF_EMULATED_TASK_SENSE))) {
+
+		memcpy((void *)sc->sense_buffer, (void *)se_cmd->sense_buffer,
+				SCSI_SENSE_BUFFERSIZE);
+		sc->result = SAM_STAT_CHECK_CONDITION;
+		set_driver_byte(sc, DRIVER_SENSE);
+	} else
+		sc->result = se_cmd->scsi_status;
+
+	set_host_byte(sc, DID_OK);
+	sc->scsi_done(sc);
+	return 0;
+}
+
+static int tcm_loop_queue_tm_rsp(struct se_cmd *se_cmd)
+{
+	struct se_tmr_req *se_tmr = se_cmd->se_tmr_req;
+	struct tcm_loop_tmr *tl_tmr = se_tmr->fabric_tmr_ptr;
+	/*
+	 * The SCSI EH thread will be sleeping on se_tmr->tl_tmr_wait, go ahead
+	 * and wake up the wait_queue_head_t in tcm_loop_device_reset()
+	 */
+	atomic_set(&tl_tmr->tmr_complete, 1);
+	wake_up(&tl_tmr->tl_tmr_wait);
+	return 0;
+}
+
+static u16 tcm_loop_set_fabric_sense_len(struct se_cmd *se_cmd, u32 sense_length)
+{
+	return 0;
+}
+
+static u16 tcm_loop_get_fabric_sense_len(void)
+{
+	return 0;
+}
+
+static u64 tcm_loop_pack_lun(unsigned int lun)
+{
+	u64 result;
+
+	/* LSB of lun into byte 1 big-endian */
+	result = ((lun & 0xff) << 8);
+	/* use flat space addressing method */
+	result |= 0x40 | ((lun >> 8) & 0x3f);
+
+	return cpu_to_le64(result);
+}
+
+static char *tcm_loop_dump_proto_id(struct tcm_loop_hba *tl_hba)
+{
+	switch (tl_hba->tl_proto_id) {
+	case SCSI_PROTOCOL_SAS:
+		return "SAS";
+	case SCSI_PROTOCOL_FCP:
+		return "FCP";
+	case SCSI_PROTOCOL_ISCSI:
+		return "iSCSI";
+	default:
+		break;
+	}
+
+	return "Unknown";
+}
+
+/* Start items for tcm_loop_port_cit */
+
+static int tcm_loop_port_link(
+	struct se_portal_group *se_tpg,
+	struct se_lun *lun)
+{
+	struct tcm_loop_tpg *tl_tpg = container_of(se_tpg,
+				struct tcm_loop_tpg, tl_se_tpg);
+	struct tcm_loop_hba *tl_hba = tl_tpg->tl_hba;
+
+	atomic_inc(&tl_tpg->tl_tpg_port_count);
+	smp_mb__after_atomic_inc();
+	/*
+	 * Add Linux/SCSI struct scsi_device by HCTL
+	 */
+	scsi_add_device(tl_hba->sh, 0, tl_tpg->tl_tpgt, lun->unpacked_lun);
+
+	printk(KERN_INFO "TCM_Loop_ConfigFS: Port Link Successful\n");
+	return 0;
+}
+
+static void tcm_loop_port_unlink(
+	struct se_portal_group *se_tpg,
+	struct se_lun *se_lun)
+{
+	struct scsi_device *sd;
+	struct tcm_loop_hba *tl_hba;
+	struct tcm_loop_tpg *tl_tpg;
+
+	tl_tpg = container_of(se_tpg, struct tcm_loop_tpg, tl_se_tpg);
+	tl_hba = tl_tpg->tl_hba;
+
+	sd = scsi_device_lookup(tl_hba->sh, 0, tl_tpg->tl_tpgt,
+				se_lun->unpacked_lun);
+	if (!sd) {
+		printk(KERN_ERR "Unable to locate struct scsi_device for %d:%d:"
+			"%d\n", 0, tl_tpg->tl_tpgt, se_lun->unpacked_lun);
+		return;
+	}
+	/*
+	 * Remove Linux/SCSI struct scsi_device by HCTL
+	 */
+	scsi_remove_device(sd);
+	scsi_device_put(sd);
+
+	atomic_dec(&tl_tpg->tl_tpg_port_count);
+	smp_mb__after_atomic_dec();
+
+	printk(KERN_INFO "TCM_Loop_ConfigFS: Port Unlink Successful\n");
+}
+
+/* End items for tcm_loop_port_cit */
+
+/* Start items for tcm_loop_nexus_cit */
+
+static int tcm_loop_make_nexus(
+	struct tcm_loop_tpg *tl_tpg,
+	const char *name)
+{
+	struct se_portal_group *se_tpg;
+	struct tcm_loop_hba *tl_hba = tl_tpg->tl_hba;
+	struct tcm_loop_nexus *tl_nexus;
+
+	if (tl_tpg->tl_hba->tl_nexus) {
+		printk(KERN_INFO "tl_tpg->tl_hba->tl_nexus already exists\n");
+		return -EEXIST;
+	}
+	se_tpg = &tl_tpg->tl_se_tpg;
+
+	tl_nexus = kzalloc(sizeof(struct tcm_loop_nexus), GFP_KERNEL);
+	if (!tl_nexus) {
+		printk(KERN_ERR "Unable to allocate struct tcm_loop_nexus\n");
+		return -ENOMEM;
+	}
+	/*
+	 * Initialize the struct se_session pointer
+	 */
+	tl_nexus->se_sess = transport_init_session();
+	if (!tl_nexus->se_sess)
+		goto out;
+	/*
+	 * Since we are running in 'demo mode' this call with generate a
+	 * struct se_node_acl for the tcm_loop struct se_portal_group with the SCSI
+	 * Initiator port name of the passed configfs group 'name'.
+	 */
+	tl_nexus->se_sess->se_node_acl = core_tpg_check_initiator_node_acl(
+				se_tpg, (unsigned char *)name);
+	if (!tl_nexus->se_sess->se_node_acl) {
+		transport_free_session(tl_nexus->se_sess);
+		goto out;
+	}
+	/*
+	 * Now, register the SAS I_T Nexus as active with the call to
+	 * transport_register_session()
+	 */
+	__transport_register_session(se_tpg, tl_nexus->se_sess->se_node_acl,
+			tl_nexus->se_sess, (void *)tl_nexus);
+	tl_tpg->tl_hba->tl_nexus = tl_nexus;
+	printk(KERN_INFO "TCM_Loop_ConfigFS: Established I_T Nexus to emulated"
+		" %s Initiator Port: %s\n", tcm_loop_dump_proto_id(tl_hba),
+		name);
+	return 0;
+
+out:
+	kfree(tl_nexus);
+	return -ENOMEM;
+}
+
+static int tcm_loop_drop_nexus(
+	struct tcm_loop_tpg *tpg)
+{
+	struct se_session *se_sess;
+	struct tcm_loop_nexus *tl_nexus;
+	struct tcm_loop_hba *tl_hba = tpg->tl_hba;
+
+	tl_nexus = tpg->tl_hba->tl_nexus;
+	if (!tl_nexus)
+		return -ENODEV;
+
+	se_sess = tl_nexus->se_sess;
+	if (!se_sess)
+		return -ENODEV;
+
+	if (atomic_read(&tpg->tl_tpg_port_count)) {
+		printk(KERN_ERR "Unable to remove TCM_Loop I_T Nexus with"
+			" active TPG port count: %d\n",
+			atomic_read(&tpg->tl_tpg_port_count));
+		return -EPERM;
+	}
+
+	printk(KERN_INFO "TCM_Loop_ConfigFS: Removing I_T Nexus to emulated"
+		" %s Initiator Port: %s\n", tcm_loop_dump_proto_id(tl_hba),
+		tl_nexus->se_sess->se_node_acl->initiatorname);
+	/*
+	 * Release the SCSI I_T Nexus to the emulated SAS Target Port
+	 */
+	transport_deregister_session(tl_nexus->se_sess);
+	tpg->tl_hba->tl_nexus = NULL;
+	kfree(tl_nexus);
+	return 0;
+}
+
+/* End items for tcm_loop_nexus_cit */
+
+static ssize_t tcm_loop_tpg_show_nexus(
+	struct se_portal_group *se_tpg,
+	char *page)
+{
+	struct tcm_loop_tpg *tl_tpg = container_of(se_tpg,
+			struct tcm_loop_tpg, tl_se_tpg);
+	struct tcm_loop_nexus *tl_nexus;
+	ssize_t ret;
+
+	tl_nexus = tl_tpg->tl_hba->tl_nexus;
+	if (!tl_nexus)
+		return -ENODEV;
+
+	ret = snprintf(page, PAGE_SIZE, "%s\n",
+		tl_nexus->se_sess->se_node_acl->initiatorname);
+
+	return ret;
+}
+
+static ssize_t tcm_loop_tpg_store_nexus(
+	struct se_portal_group *se_tpg,
+	const char *page,
+	size_t count)
+{
+	struct tcm_loop_tpg *tl_tpg = container_of(se_tpg,
+			struct tcm_loop_tpg, tl_se_tpg);
+	struct tcm_loop_hba *tl_hba = tl_tpg->tl_hba;
+	unsigned char i_port[TL_WWN_ADDR_LEN], *ptr, *port_ptr;
+	int ret;
+	/*
+	 * Shutdown the active I_T nexus if 'NULL' is passed..
+	 */
+	if (!strncmp(page, "NULL", 4)) {
+		ret = tcm_loop_drop_nexus(tl_tpg);
+		return (!ret) ? count : ret;
+	}
+	/*
+	 * Otherwise make sure the passed virtual Initiator port WWN matches
+	 * the fabric protocol_id set in tcm_loop_make_scsi_hba(), and call
+	 * tcm_loop_make_nexus()
+	 */
+	if (strlen(page) > TL_WWN_ADDR_LEN) {
+		printk(KERN_ERR "Emulated NAA Sas Address: %s, exceeds"
+				" max: %d\n", page, TL_WWN_ADDR_LEN);
+		return -EINVAL;
+	}
+	snprintf(&i_port[0], TL_WWN_ADDR_LEN, "%s", page);
+
+	ptr = strstr(i_port, "naa.");
+	if (ptr) {
+		if (tl_hba->tl_proto_id != SCSI_PROTOCOL_SAS) {
+			printk(KERN_ERR "Passed SAS Initiator Port %s does not"
+				" match target port protoid: %s\n", i_port,
+				tcm_loop_dump_proto_id(tl_hba));
+			return -EINVAL;
+		}
+		port_ptr = &i_port[0];
+		goto check_newline;
+	}
+	ptr = strstr(i_port, "fc.");
+	if (ptr) {
+		if (tl_hba->tl_proto_id != SCSI_PROTOCOL_FCP) {
+			printk(KERN_ERR "Passed FCP Initiator Port %s does not"
+				" match target port protoid: %s\n", i_port,
+				tcm_loop_dump_proto_id(tl_hba));
+			return -EINVAL;
+		}
+		port_ptr = &i_port[3]; /* Skip over "fc." */
+		goto check_newline;
+	}
+	ptr = strstr(i_port, "iqn.");
+	if (ptr) {
+		if (tl_hba->tl_proto_id != SCSI_PROTOCOL_ISCSI) {
+			printk(KERN_ERR "Passed iSCSI Initiator Port %s does not"
+				" match target port protoid: %s\n", i_port,
+				tcm_loop_dump_proto_id(tl_hba));
+			return -EINVAL;
+		}
+		port_ptr = &i_port[0];
+		goto check_newline;
+	}
+	printk(KERN_ERR "Unable to locate prefix for emulated Initiator Port:"
+			" %s\n", i_port);
+	return -EINVAL;
+	/*
+	 * Clear any trailing newline for the NAA WWN
+	 */
+check_newline:
+	if (i_port[strlen(i_port)-1] == '\n')
+		i_port[strlen(i_port)-1] = '\0';
+
+	ret = tcm_loop_make_nexus(tl_tpg, port_ptr);
+	if (ret < 0)
+		return ret;
+
+	return count;
+}
+
+TF_TPG_BASE_ATTR(tcm_loop, nexus, S_IRUGO | S_IWUSR);
+
+static struct configfs_attribute *tcm_loop_tpg_attrs[] = {
+	&tcm_loop_tpg_nexus.attr,
+	NULL,
+};
+
+/* Start items for tcm_loop_naa_cit */
+
+struct se_portal_group *tcm_loop_make_naa_tpg(
+	struct se_wwn *wwn,
+	struct config_group *group,
+	const char *name)
+{
+	struct tcm_loop_hba *tl_hba = container_of(wwn,
+			struct tcm_loop_hba, tl_hba_wwn);
+	struct tcm_loop_tpg *tl_tpg;
+	char *tpgt_str, *end_ptr;
+	int ret;
+	unsigned short int tpgt;
+
+	tpgt_str = strstr(name, "tpgt_");
+	if (!tpgt_str) {
+		printk(KERN_ERR "Unable to locate \"tpgt_#\" directory"
+				" group\n");
+		return ERR_PTR(-EINVAL);
+	}
+	tpgt_str += 5; /* Skip ahead of "tpgt_" */
+	tpgt = (unsigned short int) simple_strtoul(tpgt_str, &end_ptr, 0);
+
+	if (tpgt > TL_TPGS_PER_HBA) {
+		printk(KERN_ERR "Passed tpgt: %hu exceeds TL_TPGS_PER_HBA:"
+				" %u\n", tpgt, TL_TPGS_PER_HBA);
+		return ERR_PTR(-EINVAL);
+	}
+	tl_tpg = &tl_hba->tl_hba_tpgs[tpgt];
+	tl_tpg->tl_hba = tl_hba;
+	tl_tpg->tl_tpgt = tpgt;
+	/*
+	 * Register the tl_tpg as a emulated SAS TCM Target Endpoint
+	 */
+	ret = core_tpg_register(&tcm_loop_fabric_configfs->tf_ops,
+			wwn, &tl_tpg->tl_se_tpg, (void *)tl_tpg,
+			TRANSPORT_TPG_TYPE_NORMAL);
+	if (ret < 0)
+		return ERR_PTR(-ENOMEM);
+
+	printk(KERN_INFO "TCM_Loop_ConfigFS: Allocated Emulated %s"
+		" Target Port %s,t,0x%04x\n", tcm_loop_dump_proto_id(tl_hba),
+		config_item_name(&wwn->wwn_group.cg_item), tpgt);
+
+	return &tl_tpg->tl_se_tpg;
+}
+
+void tcm_loop_drop_naa_tpg(
+	struct se_portal_group *se_tpg)
+{
+	struct se_wwn *wwn = se_tpg->se_tpg_wwn;
+	struct tcm_loop_tpg *tl_tpg = container_of(se_tpg,
+				struct tcm_loop_tpg, tl_se_tpg);
+	struct tcm_loop_hba *tl_hba;
+	unsigned short tpgt;
+
+	tl_hba = tl_tpg->tl_hba;
+	tpgt = tl_tpg->tl_tpgt;
+	/*
+	 * Release the I_T Nexus for the Virtual SAS link if present
+	 */
+	tcm_loop_drop_nexus(tl_tpg);
+	/*
+	 * Deregister the tl_tpg as a emulated SAS TCM Target Endpoint
+	 */
+	core_tpg_deregister(se_tpg);
+
+	printk(KERN_INFO "TCM_Loop_ConfigFS: Deallocated Emulated %s"
+		" Target Port %s,t,0x%04x\n", tcm_loop_dump_proto_id(tl_hba),
+		config_item_name(&wwn->wwn_group.cg_item), tpgt);
+}
+
+/* End items for tcm_loop_naa_cit */
+
+/* Start items for tcm_loop_cit */
+
+struct se_wwn *tcm_loop_make_scsi_hba(
+	struct target_fabric_configfs *tf,
+	struct config_group *group,
+	const char *name)
+{
+	struct tcm_loop_hba *tl_hba;
+	struct Scsi_Host *sh;
+	char *ptr;
+	int ret, off = 0;
+
+	tl_hba = kzalloc(sizeof(struct tcm_loop_hba), GFP_KERNEL);
+	if (!tl_hba) {
+		printk(KERN_ERR "Unable to allocate struct tcm_loop_hba\n");
+		return ERR_PTR(-ENOMEM);
+	}
+	/*
+	 * Determine the emulated Protocol Identifier and Target Port Name
+	 * based on the incoming configfs directory name.
+	 */
+	ptr = strstr(name, "naa.");
+	if (ptr) {
+		tl_hba->tl_proto_id = SCSI_PROTOCOL_SAS;
+		goto check_len;
+	}
+	ptr = strstr(name, "fc.");
+	if (ptr) {
+		tl_hba->tl_proto_id = SCSI_PROTOCOL_FCP;
+		off = 3; /* Skip over "fc." */
+		goto check_len;
+	}
+	ptr = strstr(name, "iqn.");
+	if (ptr) {
+		tl_hba->tl_proto_id = SCSI_PROTOCOL_ISCSI;
+		goto check_len;
+	}
+
+	printk(KERN_ERR "Unable to locate prefix for emulated Target Port:"
+			" %s\n", name);
+	return ERR_PTR(-EINVAL);
+
+check_len:
+	if (strlen(name) > TL_WWN_ADDR_LEN) {
+		printk(KERN_ERR "Emulated NAA %s Address: %s, exceeds"
+			" max: %d\n", name, tcm_loop_dump_proto_id(tl_hba),
+			TL_WWN_ADDR_LEN);
+		kfree(tl_hba);
+		return ERR_PTR(-EINVAL);
+	}
+	snprintf(&tl_hba->tl_wwn_address[0], TL_WWN_ADDR_LEN, "%s", &name[off]);
+
+	/*
+	 * Call device_register(tl_hba->dev) to register the emulated
+	 * Linux/SCSI LLD of type struct Scsi_Host at tl_hba->sh after
+	 * device_register() callbacks in tcm_loop_driver_probe()
+	 */
+	ret = tcm_loop_setup_hba_bus(tl_hba, tcm_loop_hba_no_cnt);
+	if (ret)
+		goto out;
+
+	sh = tl_hba->sh;
+	tcm_loop_hba_no_cnt++;
+	printk(KERN_INFO "TCM_Loop_ConfigFS: Allocated emulated Target"
+		" %s Address: %s at Linux/SCSI Host ID: %d\n",
+		tcm_loop_dump_proto_id(tl_hba), name, sh->host_no);
+
+	return &tl_hba->tl_hba_wwn;
+out:
+	kfree(tl_hba);
+	return ERR_PTR(ret);
+}
+
+void tcm_loop_drop_scsi_hba(
+	struct se_wwn *wwn)
+{
+	struct tcm_loop_hba *tl_hba = container_of(wwn,
+				struct tcm_loop_hba, tl_hba_wwn);
+	int host_no = tl_hba->sh->host_no;
+	/*
+	 * Call device_unregister() on the original tl_hba->dev.
+	 * tcm_loop_fabric_scsi.c:tcm_loop_release_adapter() will
+	 * release *tl_hba;
+	 */
+	device_unregister(&tl_hba->dev);
+
+	printk(KERN_INFO "TCM_Loop_ConfigFS: Deallocated emulated Target"
+		" SAS Address: %s at Linux/SCSI Host ID: %d\n",
+		config_item_name(&wwn->wwn_group.cg_item), host_no);
+}
+
+/* Start items for tcm_loop_cit */
+static ssize_t tcm_loop_wwn_show_attr_version(
+	struct target_fabric_configfs *tf,
+	char *page)
+{
+	return sprintf(page, "TCM Loopback Fabric module %s\n", TCM_LOOP_VERSION);
+}
+
+TF_WWN_ATTR_RO(tcm_loop, version);
+
+static struct configfs_attribute *tcm_loop_wwn_attrs[] = {
+	&tcm_loop_wwn_version.attr,
+	NULL,
+};
+
+/* End items for tcm_loop_cit */
+
+static int tcm_loop_register_configfs(void)
+{
+	struct target_fabric_configfs *fabric;
+	struct config_group *tf_cg;
+	int ret;
+	/*
+	 * Set the TCM Loop HBA counter to zero
+	 */
+	tcm_loop_hba_no_cnt = 0;
+	/*
+	 * Register the top level struct config_item_type with TCM core
+	 */
+	fabric = target_fabric_configfs_init(THIS_MODULE, "loopback");
+	if (!fabric) {
+		printk(KERN_ERR "tcm_loop_register_configfs() failed!\n");
+		return -1;
+	}
+	/*
+	 * Setup the fabric API of function pointers used by target_core_mod
+	 */
+	fabric->tf_ops.get_fabric_name = &tcm_loop_get_fabric_name;
+	fabric->tf_ops.get_fabric_proto_ident = &tcm_loop_get_fabric_proto_ident;
+	fabric->tf_ops.tpg_get_wwn = &tcm_loop_get_endpoint_wwn;
+	fabric->tf_ops.tpg_get_tag = &tcm_loop_get_tag;
+	fabric->tf_ops.tpg_get_default_depth = &tcm_loop_get_default_depth;
+	fabric->tf_ops.tpg_get_pr_transport_id = &tcm_loop_get_pr_transport_id;
+	fabric->tf_ops.tpg_get_pr_transport_id_len =
+					&tcm_loop_get_pr_transport_id_len;
+	fabric->tf_ops.tpg_parse_pr_out_transport_id =
+					&tcm_loop_parse_pr_out_transport_id;
+	fabric->tf_ops.tpg_check_demo_mode = &tcm_loop_check_demo_mode;
+	fabric->tf_ops.tpg_check_demo_mode_cache =
+					&tcm_loop_check_demo_mode_cache;
+	fabric->tf_ops.tpg_check_demo_mode_write_protect =
+					&tcm_loop_check_demo_mode_write_protect;
+	fabric->tf_ops.tpg_check_prod_mode_write_protect =
+					&tcm_loop_check_prod_mode_write_protect;
+	/*
+	 * The TCM loopback fabric module runs in demo-mode to a local
+	 * virtual SCSI device, so fabric dependent initator ACLs are
+	 * not required.
+	 */
+	fabric->tf_ops.tpg_alloc_fabric_acl = &tcm_loop_tpg_alloc_fabric_acl;
+	fabric->tf_ops.tpg_release_fabric_acl =
+					&tcm_loop_tpg_release_fabric_acl;
+	fabric->tf_ops.tpg_get_inst_index = &tcm_loop_get_inst_index;
+	/*
+	 * Since tcm_loop is mapping physical memory from Linux/SCSI
+	 * struct scatterlist arrays for each struct scsi_cmnd I/O,
+	 * we do not need TCM to allocate a iovec array for
+	 * virtual memory address mappings
+	 */
+	fabric->tf_ops.alloc_cmd_iovecs = NULL;
+	/*
+	 * Used for setting up remaining TCM resources in process context
+	 */
+	fabric->tf_ops.new_cmd_map = &tcm_loop_new_cmd_map;
+	fabric->tf_ops.check_stop_free = &tcm_loop_check_stop_free;
+	fabric->tf_ops.release_cmd_to_pool = &tcm_loop_deallocate_core_cmd;
+	fabric->tf_ops.release_cmd_direct = &tcm_loop_deallocate_core_cmd;
+	fabric->tf_ops.shutdown_session = &tcm_loop_shutdown_session;
+	fabric->tf_ops.close_session = &tcm_loop_close_session;
+	fabric->tf_ops.stop_session = &tcm_loop_stop_session;
+	fabric->tf_ops.fall_back_to_erl0 = &tcm_loop_fall_back_to_erl0;
+	fabric->tf_ops.sess_logged_in = &tcm_loop_sess_logged_in;
+	fabric->tf_ops.sess_get_index = &tcm_loop_sess_get_index;
+	fabric->tf_ops.sess_get_initiator_sid = NULL;
+	fabric->tf_ops.write_pending = &tcm_loop_write_pending;
+	fabric->tf_ops.write_pending_status = &tcm_loop_write_pending_status;
+	/*
+	 * Not used for TCM loopback
+	 */
+	fabric->tf_ops.set_default_node_attributes =
+					&tcm_loop_set_default_node_attributes;
+	fabric->tf_ops.get_task_tag = &tcm_loop_get_task_tag;
+	fabric->tf_ops.get_cmd_state = &tcm_loop_get_cmd_state;
+	fabric->tf_ops.new_cmd_failure = &tcm_loop_new_cmd_failure;
+	fabric->tf_ops.queue_data_in = &tcm_loop_queue_data_in;
+	fabric->tf_ops.queue_status = &tcm_loop_queue_status;
+	fabric->tf_ops.queue_tm_rsp = &tcm_loop_queue_tm_rsp;
+	fabric->tf_ops.set_fabric_sense_len = &tcm_loop_set_fabric_sense_len;
+	fabric->tf_ops.get_fabric_sense_len = &tcm_loop_get_fabric_sense_len;
+	fabric->tf_ops.is_state_remove = &tcm_loop_is_state_remove;
+	fabric->tf_ops.pack_lun = &tcm_loop_pack_lun;
+
+	tf_cg = &fabric->tf_group;
+	/*
+	 * Setup function pointers for generic logic in target_core_fabric_configfs.c
+	 */
+	fabric->tf_ops.fabric_make_wwn = &tcm_loop_make_scsi_hba;
+	fabric->tf_ops.fabric_drop_wwn = &tcm_loop_drop_scsi_hba;
+	fabric->tf_ops.fabric_make_tpg = &tcm_loop_make_naa_tpg;
+	fabric->tf_ops.fabric_drop_tpg = &tcm_loop_drop_naa_tpg;
+	/*
+	 * fabric_post_link() and fabric_pre_unlink() are used for
+	 * registration and release of TCM Loop Virtual SCSI LUNs.
+	 */
+	fabric->tf_ops.fabric_post_link = &tcm_loop_port_link;
+	fabric->tf_ops.fabric_pre_unlink = &tcm_loop_port_unlink;
+	fabric->tf_ops.fabric_make_np = NULL;
+	fabric->tf_ops.fabric_drop_np = NULL;
+	/*
+	 * Setup default attribute lists for various fabric->tf_cit_tmpl
+	 */
+	TF_CIT_TMPL(fabric)->tfc_wwn_cit.ct_attrs = tcm_loop_wwn_attrs;
+	TF_CIT_TMPL(fabric)->tfc_tpg_base_cit.ct_attrs = tcm_loop_tpg_attrs;
+	TF_CIT_TMPL(fabric)->tfc_tpg_attrib_cit.ct_attrs = NULL;
+	TF_CIT_TMPL(fabric)->tfc_tpg_param_cit.ct_attrs = NULL;
+	TF_CIT_TMPL(fabric)->tfc_tpg_np_base_cit.ct_attrs = NULL;
+	/*
+	 * Once fabric->tf_ops has been setup, now register the fabric for
+	 * use within TCM
+	 */
+	ret = target_fabric_configfs_register(fabric);
+	if (ret < 0) {
+		printk(KERN_ERR "target_fabric_configfs_register() for"
+				" TCM_Loop failed!\n");
+		target_fabric_configfs_free(fabric);
+		return -1;
+	}
+	/*
+	 * Setup our local pointer to *fabric.
+	 */
+	tcm_loop_fabric_configfs = fabric;
+	printk(KERN_INFO "TCM_LOOP[0] - Set fabric ->"
+			" tcm_loop_fabric_configfs\n");
+	return 0;
+}
+
+static void tcm_loop_deregister_configfs(void)
+{
+	if (!tcm_loop_fabric_configfs)
+		return;
+
+	target_fabric_configfs_deregister(tcm_loop_fabric_configfs);
+	tcm_loop_fabric_configfs = NULL;
+	printk(KERN_INFO "TCM_LOOP[0] - Cleared"
+				" tcm_loop_fabric_configfs\n");
+}
+
+static int __init tcm_loop_fabric_init(void)
+{
+	int ret;
+
+	tcm_loop_cmd_cache = kmem_cache_create("tcm_loop_cmd_cache",
+				sizeof(struct tcm_loop_cmd),
+				__alignof__(struct tcm_loop_cmd),
+				0, NULL);
+	if (!tcm_loop_cmd_cache) {
+		printk(KERN_ERR "kmem_cache_create() for"
+			" tcm_loop_cmd_cache failed\n");
+		return -ENOMEM;
+	}
+
+	ret = tcm_loop_alloc_core_bus();
+	if (ret)
+		return ret;
+
+	ret = tcm_loop_register_configfs();
+	if (ret) {
+		tcm_loop_release_core_bus();
+		return ret;
+	}
+
+	return 0;
+}
+
+static void __exit tcm_loop_fabric_exit(void)
+{
+	tcm_loop_deregister_configfs();
+	tcm_loop_release_core_bus();
+	kmem_cache_destroy(tcm_loop_cmd_cache);
+}
+
+MODULE_DESCRIPTION("TCM loopback virtual Linux/SCSI fabric module");
+MODULE_AUTHOR("Nicholas A. Bellinger <nab@risingtidesystems.com>");
+MODULE_LICENSE("GPL");
+module_init(tcm_loop_fabric_init);
+module_exit(tcm_loop_fabric_exit);
diff --git a/drivers/target/loopback/tcm_loop.h b/drivers/target/loopback/tcm_loop.h
new file mode 100644
index 000000000000..7e9f7ab45548
--- /dev/null
+++ b/drivers/target/loopback/tcm_loop.h
@@ -0,0 +1,77 @@
+#define TCM_LOOP_VERSION		"v2.1-rc1"
+#define TL_WWN_ADDR_LEN			256
+#define TL_TPGS_PER_HBA			32
+/*
+ * Defaults for struct scsi_host_template tcm_loop_driver_template
+ *
+ * We use large can_queue and cmd_per_lun here and let TCM enforce
+ * the underlying se_device_t->queue_depth.
+ */
+#define TL_SCSI_CAN_QUEUE		1024
+#define TL_SCSI_CMD_PER_LUN		1024
+#define TL_SCSI_MAX_SECTORS		1024
+#define TL_SCSI_SG_TABLESIZE		256
+/*
+ * Used in tcm_loop_driver_probe() for struct Scsi_Host->max_cmd_len
+ */
+#define TL_SCSI_MAX_CMD_LEN		32
+
+#ifdef CONFIG_LOOPBACK_TARGET_CDB_DEBUG
+# define TL_CDB_DEBUG(x...)		printk(KERN_INFO x)
+#else
+# define TL_CDB_DEBUG(x...)
+#endif
+
+struct tcm_loop_cmd {
+	/* State of Linux/SCSI CDB+Data descriptor */
+	u32 sc_cmd_state;
+	/* Pointer to the CDB+Data descriptor from Linux/SCSI subsystem */
+	struct scsi_cmnd *sc;
+	struct list_head *tl_cmd_list;
+	/* The TCM I/O descriptor that is accessed via container_of() */
+	struct se_cmd tl_se_cmd;
+	/* Sense buffer that will be mapped into outgoing status */
+	unsigned char tl_sense_buf[TRANSPORT_SENSE_BUFFER];
+};
+
+struct tcm_loop_tmr {
+	atomic_t tmr_complete;
+	wait_queue_head_t tl_tmr_wait;
+};
+
+struct tcm_loop_nexus {
+	int it_nexus_active;
+	/*
+	 * Pointer to Linux/SCSI HBA from linux/include/scsi_host.h
+	 */
+	struct scsi_host *sh;
+	/*
+	 * Pointer to TCM session for I_T Nexus
+	 */
+	struct se_session *se_sess;
+};
+
+struct tcm_loop_nacl {
+	struct se_node_acl se_node_acl;
+};
+
+struct tcm_loop_tpg {
+	unsigned short tl_tpgt;
+	atomic_t tl_tpg_port_count;
+	struct se_portal_group tl_se_tpg;
+	struct tcm_loop_hba *tl_hba;
+};
+
+struct tcm_loop_hba {
+	u8 tl_proto_id;
+	unsigned char tl_wwn_address[TL_WWN_ADDR_LEN];
+	struct se_hba_s *se_hba;
+	struct se_lun *tl_hba_lun;
+	struct se_port *tl_hba_lun_sep;
+	struct se_device_s *se_dev_hba_ptr;
+	struct tcm_loop_nexus *tl_nexus;
+	struct device dev;
+	struct Scsi_Host *sh;
+	struct tcm_loop_tpg tl_hba_tpgs[TL_TPGS_PER_HBA];
+	struct se_wwn tl_hba_wwn;
+};
diff --git a/drivers/target/target_core_alua.c b/drivers/target/target_core_alua.c
index 2c5fcfed5934..30cbb743d9ba 100644
--- a/drivers/target/target_core_alua.c
+++ b/drivers/target/target_core_alua.c
@@ -496,8 +496,8 @@ static int core_alua_state_check(
 	nonop_delay_msecs = tg_pt_gp->tg_pt_gp_nonop_delay_msecs;
 	spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
 	/*
-	 * Process ALUA_ACCESS_STATE_ACTIVE_OPTMIZED in a seperate conditional
-	 * statement so the complier knows explictly to check this case first.
+	 * Process ALUA_ACCESS_STATE_ACTIVE_OPTMIZED in a separate conditional
+	 * statement so the compiler knows explicitly to check this case first.
 	 * For the Optimized ALUA access state case, we want to process the
 	 * incoming fabric cmd ASAP..
 	 */
@@ -1157,7 +1157,7 @@ void core_alua_free_lu_gp(struct t10_alua_lu_gp *lu_gp)
 		spin_unlock(&lu_gp->lu_gp_lock);
 		/*
 		 *
-		 * lu_gp_mem is assoicated with a single
+		 * lu_gp_mem is associated with a single
 		 * struct se_device->dev_alua_lu_gp_mem, and is released when
 		 * struct se_device is released via core_alua_free_lu_gp_mem().
 		 *
@@ -1429,7 +1429,7 @@ void core_alua_free_tg_pt_gp(
 		}
 		spin_unlock(&tg_pt_gp->tg_pt_gp_lock);
 		/*
-		 * tg_pt_gp_mem is assoicated with a single
+		 * tg_pt_gp_mem is associated with a single
 		 * se_port->sep_alua_tg_pt_gp_mem, and is released via
 		 * core_alua_free_tg_pt_gp_mem().
 		 *
@@ -1963,7 +1963,7 @@ int core_setup_alua(struct se_device *dev, int force_pt)
 		printk(KERN_INFO "%s: Enabling ALUA Emulation for SPC-3"
 			" device\n", TRANSPORT(dev)->name);
 		/*
-		 * Assoicate this struct se_device with the default ALUA
+		 * Associate this struct se_device with the default ALUA
 		 * LUN Group.
 		 */
 		lu_gp_mem = core_alua_allocate_lu_gp_mem(dev);
diff --git a/drivers/target/target_core_configfs.c b/drivers/target/target_core_configfs.c
index caf8dc18ee0a..a5f44a6e6e1d 100644
--- a/drivers/target/target_core_configfs.c
+++ b/drivers/target/target_core_configfs.c
@@ -3,8 +3,8 @@
  *
  * This file contains ConfigFS logic for the Generic Target Engine project.
  *
- * Copyright (c) 2008-2010 Rising Tide Systems
- * Copyright (c) 2008-2010 Linux-iSCSI.org
+ * Copyright (c) 2008-2011 Rising Tide Systems
+ * Copyright (c) 2008-2011 Linux-iSCSI.org
  *
  * Nicholas A. Bellinger <nab@kernel.org>
  *
@@ -50,6 +50,7 @@
 #include "target_core_hba.h"
 #include "target_core_pr.h"
 #include "target_core_rd.h"
+#include "target_core_stat.h"
 
 static struct list_head g_tf_list;
 static struct mutex g_tf_lock;
@@ -1451,8 +1452,8 @@ static ssize_t target_core_dev_pr_store_attr_res_aptpl_metadata(
 	size_t count)
 {
 	struct se_device *dev;
-	unsigned char *i_fabric, *t_fabric, *i_port = NULL, *t_port = NULL;
-	unsigned char *isid = NULL;
+	unsigned char *i_fabric = NULL, *i_port = NULL, *isid = NULL;
+	unsigned char *t_fabric = NULL, *t_port = NULL;
 	char *orig, *ptr, *arg_p, *opts;
 	substring_t args[MAX_OPT_ARGS];
 	unsigned long long tmp_ll;
@@ -1488,9 +1489,17 @@ static ssize_t target_core_dev_pr_store_attr_res_aptpl_metadata(
 		switch (token) {
 		case Opt_initiator_fabric:
 			i_fabric = match_strdup(&args[0]);
+			if (!i_fabric) {
+				ret = -ENOMEM;
+				goto out;
+			}
 			break;
 		case Opt_initiator_node:
 			i_port = match_strdup(&args[0]);
+			if (!i_port) {
+				ret = -ENOMEM;
+				goto out;
+			}
 			if (strlen(i_port) > PR_APTPL_MAX_IPORT_LEN) {
 				printk(KERN_ERR "APTPL metadata initiator_node="
 					" exceeds PR_APTPL_MAX_IPORT_LEN: %d\n",
@@ -1501,6 +1510,10 @@ static ssize_t target_core_dev_pr_store_attr_res_aptpl_metadata(
 			break;
 		case Opt_initiator_sid:
 			isid = match_strdup(&args[0]);
+			if (!isid) {
+				ret = -ENOMEM;
+				goto out;
+			}
 			if (strlen(isid) > PR_REG_ISID_LEN) {
 				printk(KERN_ERR "APTPL metadata initiator_isid"
 					"= exceeds PR_REG_ISID_LEN: %d\n",
@@ -1511,6 +1524,10 @@ static ssize_t target_core_dev_pr_store_attr_res_aptpl_metadata(
 			break;
 		case Opt_sa_res_key:
 			arg_p = match_strdup(&args[0]);
+			if (!arg_p) {
+				ret = -ENOMEM;
+				goto out;
+			}
 			ret = strict_strtoull(arg_p, 0, &tmp_ll);
 			if (ret < 0) {
 				printk(KERN_ERR "strict_strtoull() failed for"
@@ -1547,9 +1564,17 @@ static ssize_t target_core_dev_pr_store_attr_res_aptpl_metadata(
 		 */
 		case Opt_target_fabric:
 			t_fabric = match_strdup(&args[0]);
+			if (!t_fabric) {
+				ret = -ENOMEM;
+				goto out;
+			}
 			break;
 		case Opt_target_node:
 			t_port = match_strdup(&args[0]);
+			if (!t_port) {
+				ret = -ENOMEM;
+				goto out;
+			}
 			if (strlen(t_port) > PR_APTPL_MAX_TPORT_LEN) {
 				printk(KERN_ERR "APTPL metadata target_node="
 					" exceeds PR_APTPL_MAX_TPORT_LEN: %d\n",
@@ -1592,6 +1617,11 @@ static ssize_t target_core_dev_pr_store_attr_res_aptpl_metadata(
 			i_port, isid, mapped_lun, t_port, tpgt, target_lun,
 			res_holder, all_tg_pt, type);
 out:
+	kfree(i_fabric);
+	kfree(i_port);
+	kfree(isid);
+	kfree(t_fabric);
+	kfree(t_port);
 	kfree(orig);
 	return (ret == 0) ? count : ret;
 }
@@ -1798,7 +1828,9 @@ static ssize_t target_core_store_dev_enable(
 		return -EINVAL;
 
 	dev = t->create_virtdevice(hba, se_dev, se_dev->se_dev_su_ptr);
-	if (!(dev) || IS_ERR(dev))
+	if (IS_ERR(dev))
+		return PTR_ERR(dev);
+	else if (!dev)
 		return -EINVAL;
 
 	se_dev->se_dev_ptr = dev;
@@ -2678,6 +2710,34 @@ static struct config_item_type target_core_alua_cit = {
 
 /* End functions for struct config_item_type target_core_alua_cit */
 
+/* Start functions for struct config_item_type target_core_stat_cit */
+
+static struct config_group *target_core_stat_mkdir(
+	struct config_group *group,
+	const char *name)
+{
+	return ERR_PTR(-ENOSYS);
+}
+
+static void target_core_stat_rmdir(
+	struct config_group *group,
+	struct config_item *item)
+{
+	return;
+}
+
+static struct configfs_group_operations target_core_stat_group_ops = {
+	.make_group		= &target_core_stat_mkdir,
+	.drop_item		= &target_core_stat_rmdir,
+};
+
+static struct config_item_type target_core_stat_cit = {
+	.ct_group_ops		= &target_core_stat_group_ops,
+	.ct_owner		= THIS_MODULE,
+};
+
+/* End functions for struct config_item_type target_core_stat_cit */
+
 /* Start functions for struct config_item_type target_core_hba_cit */
 
 static struct config_group *target_core_make_subdev(
@@ -2690,10 +2750,12 @@ static struct config_group *target_core_make_subdev(
 	struct config_item *hba_ci = &group->cg_item;
 	struct se_hba *hba = item_to_hba(hba_ci);
 	struct config_group *dev_cg = NULL, *tg_pt_gp_cg = NULL;
+	struct config_group *dev_stat_grp = NULL;
+	int errno = -ENOMEM, ret;
 
-	if (mutex_lock_interruptible(&hba->hba_access_mutex))
-		return NULL;
-
+	ret = mutex_lock_interruptible(&hba->hba_access_mutex);
+	if (ret)
+		return ERR_PTR(ret);
 	/*
 	 * Locate the struct se_subsystem_api from parent's struct se_hba.
 	 */
@@ -2723,7 +2785,7 @@ static struct config_group *target_core_make_subdev(
 	se_dev->se_dev_hba = hba;
 	dev_cg = &se_dev->se_dev_group;
 
-	dev_cg->default_groups = kzalloc(sizeof(struct config_group) * 6,
+	dev_cg->default_groups = kzalloc(sizeof(struct config_group) * 7,
 			GFP_KERNEL);
 	if (!(dev_cg->default_groups))
 		goto out;
@@ -2755,13 +2817,17 @@ static struct config_group *target_core_make_subdev(
 			&target_core_dev_wwn_cit);
 	config_group_init_type_name(&se_dev->t10_alua.alua_tg_pt_gps_group,
 			"alua", &target_core_alua_tg_pt_gps_cit);
+	config_group_init_type_name(&se_dev->dev_stat_grps.stat_group,
+			"statistics", &target_core_stat_cit);
+
 	dev_cg->default_groups[0] = &se_dev->se_dev_attrib.da_group;
 	dev_cg->default_groups[1] = &se_dev->se_dev_pr_group;
 	dev_cg->default_groups[2] = &se_dev->t10_wwn.t10_wwn_group;
 	dev_cg->default_groups[3] = &se_dev->t10_alua.alua_tg_pt_gps_group;
-	dev_cg->default_groups[4] = NULL;
+	dev_cg->default_groups[4] = &se_dev->dev_stat_grps.stat_group;
+	dev_cg->default_groups[5] = NULL;
 	/*
-	 * Add core/$HBA/$DEV/alua/tg_pt_gps/default_tg_pt_gp
+	 * Add core/$HBA/$DEV/alua/default_tg_pt_gp
 	 */
 	tg_pt_gp = core_alua_allocate_tg_pt_gp(se_dev, "default_tg_pt_gp", 1);
 	if (!(tg_pt_gp))
@@ -2781,6 +2847,17 @@ static struct config_group *target_core_make_subdev(
 	tg_pt_gp_cg->default_groups[0] = &tg_pt_gp->tg_pt_gp_group;
 	tg_pt_gp_cg->default_groups[1] = NULL;
 	T10_ALUA(se_dev)->default_tg_pt_gp = tg_pt_gp;
+	/*
+	 * Add core/$HBA/$DEV/statistics/ default groups
+	 */
+	dev_stat_grp = &DEV_STAT_GRP(se_dev)->stat_group;
+	dev_stat_grp->default_groups = kzalloc(sizeof(struct config_group) * 4,
+				GFP_KERNEL);
+	if (!dev_stat_grp->default_groups) {
+		printk(KERN_ERR "Unable to allocate dev_stat_grp->default_groups\n");
+		goto out;
+	}
+	target_stat_setup_dev_default_groups(se_dev);
 
 	printk(KERN_INFO "Target_Core_ConfigFS: Allocated struct se_subsystem_dev:"
 		" %p se_dev_su_ptr: %p\n", se_dev, se_dev->se_dev_su_ptr);
@@ -2792,6 +2869,8 @@ out:
 		core_alua_free_tg_pt_gp(T10_ALUA(se_dev)->default_tg_pt_gp);
 		T10_ALUA(se_dev)->default_tg_pt_gp = NULL;
 	}
+	if (dev_stat_grp)
+		kfree(dev_stat_grp->default_groups);
 	if (tg_pt_gp_cg)
 		kfree(tg_pt_gp_cg->default_groups);
 	if (dev_cg)
@@ -2801,7 +2880,7 @@ out:
 	kfree(se_dev);
 unlock:
 	mutex_unlock(&hba->hba_access_mutex);
-	return NULL;
+	return ERR_PTR(errno);
 }
 
 static void target_core_drop_subdev(
@@ -2813,7 +2892,7 @@ static void target_core_drop_subdev(
 	struct se_hba *hba;
 	struct se_subsystem_api *t;
 	struct config_item *df_item;
-	struct config_group *dev_cg, *tg_pt_gp_cg;
+	struct config_group *dev_cg, *tg_pt_gp_cg, *dev_stat_grp;
 	int i;
 
 	hba = item_to_hba(&se_dev->se_dev_hba->hba_group.cg_item);
@@ -2825,6 +2904,14 @@ static void target_core_drop_subdev(
 	list_del(&se_dev->g_se_dev_list);
 	spin_unlock(&se_global->g_device_lock);
 
+	dev_stat_grp = &DEV_STAT_GRP(se_dev)->stat_group;
+	for (i = 0; dev_stat_grp->default_groups[i]; i++) {
+		df_item = &dev_stat_grp->default_groups[i]->cg_item;
+		dev_stat_grp->default_groups[i] = NULL;
+		config_item_put(df_item);
+	}
+	kfree(dev_stat_grp->default_groups);
+
 	tg_pt_gp_cg = &T10_ALUA(se_dev)->alua_tg_pt_gps_group;
 	for (i = 0; tg_pt_gp_cg->default_groups[i]; i++) {
 		df_item = &tg_pt_gp_cg->default_groups[i]->cg_item;
@@ -3044,7 +3131,7 @@ static struct config_item_type target_core_cit = {
 
 /* Stop functions for struct config_item_type target_core_hba_cit */
 
-static int target_core_init_configfs(void)
+static int __init target_core_init_configfs(void)
 {
 	struct config_group *target_cg, *hba_cg = NULL, *alua_cg = NULL;
 	struct config_group *lu_gp_cg = NULL;
@@ -3176,7 +3263,7 @@ out_global:
 	return -1;
 }
 
-static void target_core_exit_configfs(void)
+static void __exit target_core_exit_configfs(void)
 {
 	struct configfs_subsystem *subsys;
 	struct config_group *hba_cg, *alua_cg, *lu_gp_cg;
diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c
index 350ed401544e..d25e20829012 100644
--- a/drivers/target/target_core_device.c
+++ b/drivers/target/target_core_device.c
@@ -371,7 +371,7 @@ int core_update_device_list_for_node(
 	if (!(enable)) {
 		/*
 		 * deve->se_lun_acl will be NULL for demo-mode created LUNs
-		 * that have not been explictly concerted to MappedLUNs ->
+		 * that have not been explicitly concerted to MappedLUNs ->
 		 * struct se_lun_acl, but we remove deve->alua_port_list from
 		 * port->sep_alua_list. This also means that active UAs and
 		 * NodeACL context specific PR metadata for demo-mode
@@ -589,6 +589,7 @@ static void core_export_port(
  *	Called with struct se_device->se_port_lock spinlock held.
  */
 static void core_release_port(struct se_device *dev, struct se_port *port)
+	__releases(&dev->se_port_lock) __acquires(&dev->se_port_lock)
 {
 	/*
 	 * Wait for any port reference for PR ALL_TG_PT=1 operation
@@ -779,49 +780,14 @@ void se_release_vpd_for_dev(struct se_device *dev)
 	return;
 }
 
-/*
- * Called with struct se_hba->device_lock held.
- */
-void se_clear_dev_ports(struct se_device *dev)
-{
-	struct se_hba *hba = dev->se_hba;
-	struct se_lun *lun;
-	struct se_portal_group *tpg;
-	struct se_port *sep, *sep_tmp;
-
-	spin_lock(&dev->se_port_lock);
-	list_for_each_entry_safe(sep, sep_tmp, &dev->dev_sep_list, sep_list) {
-		spin_unlock(&dev->se_port_lock);
-		spin_unlock(&hba->device_lock);
-
-		lun = sep->sep_lun;
-		tpg = sep->sep_tpg;
-		spin_lock(&lun->lun_sep_lock);
-		if (lun->lun_se_dev == NULL) {
-			spin_unlock(&lun->lun_sep_lock);
-			continue;
-		}
-		spin_unlock(&lun->lun_sep_lock);
-
-		core_dev_del_lun(tpg, lun->unpacked_lun);
-
-		spin_lock(&hba->device_lock);
-		spin_lock(&dev->se_port_lock);
-	}
-	spin_unlock(&dev->se_port_lock);
-
-	return;
-}
-
 /*	se_free_virtual_device():
  *
  *	Used for IBLOCK, RAMDISK, and FILEIO Transport Drivers.
  */
 int se_free_virtual_device(struct se_device *dev, struct se_hba *hba)
 {
-	spin_lock(&hba->device_lock);
-	se_clear_dev_ports(dev);
-	spin_unlock(&hba->device_lock);
+	if (!list_empty(&dev->dev_sep_list))
+		dump_stack();
 
 	core_alua_free_lu_gp_mem(dev);
 	se_release_device_for_hba(dev);
diff --git a/drivers/target/target_core_fabric_configfs.c b/drivers/target/target_core_fabric_configfs.c
index b65d1c8e7740..07ab5a3bb8e8 100644
--- a/drivers/target/target_core_fabric_configfs.c
+++ b/drivers/target/target_core_fabric_configfs.c
@@ -4,10 +4,10 @@
  * This file contains generic fabric module configfs infrastructure for
  * TCM v4.x code
  *
- * Copyright (c) 2010 Rising Tide Systems
- * Copyright (c) 2010 Linux-iSCSI.org
+ * Copyright (c) 2010,2011 Rising Tide Systems
+ * Copyright (c) 2010,2011 Linux-iSCSI.org
  *
- * Copyright (c) 2010 Nicholas A. Bellinger <nab@linux-iscsi.org>
+ * Copyright (c) Nicholas A. Bellinger <nab@linux-iscsi.org>
 *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -48,6 +48,7 @@
 #include "target_core_alua.h"
 #include "target_core_hba.h"
 #include "target_core_pr.h"
+#include "target_core_stat.h"
 
 #define TF_CIT_SETUP(_name, _item_ops, _group_ops, _attrs)		\
 static void target_fabric_setup_##_name##_cit(struct target_fabric_configfs *tf) \
@@ -241,6 +242,32 @@ TF_CIT_SETUP(tpg_mappedlun, &target_fabric_mappedlun_item_ops, NULL,
 
 /* End of tfc_tpg_mappedlun_cit */
 
+/* Start of tfc_tpg_mappedlun_port_cit */
+
+static struct config_group *target_core_mappedlun_stat_mkdir(
+	struct config_group *group,
+	const char *name)
+{
+	return ERR_PTR(-ENOSYS);
+}
+
+static void target_core_mappedlun_stat_rmdir(
+	struct config_group *group,
+	struct config_item *item)
+{
+	return;
+}
+
+static struct configfs_group_operations target_fabric_mappedlun_stat_group_ops = {
+	.make_group		= target_core_mappedlun_stat_mkdir,
+	.drop_item		= target_core_mappedlun_stat_rmdir,
+};
+
+TF_CIT_SETUP(tpg_mappedlun_stat, NULL, &target_fabric_mappedlun_stat_group_ops,
+		NULL);
+
+/* End of tfc_tpg_mappedlun_port_cit */
+
 /* Start of tfc_tpg_nacl_attrib_cit */
 
 CONFIGFS_EATTR_OPS(target_fabric_nacl_attrib, se_node_acl, acl_attrib_group);
@@ -294,6 +321,7 @@ static struct config_group *target_fabric_make_mappedlun(
 	struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf;
 	struct se_lun_acl *lacl;
 	struct config_item *acl_ci;
+	struct config_group *lacl_cg = NULL, *ml_stat_grp = NULL;
 	char *buf;
 	unsigned long mapped_lun;
 	int ret = 0;
@@ -330,15 +358,42 @@ static struct config_group *target_fabric_make_mappedlun(
 
 	lacl = core_dev_init_initiator_node_lun_acl(se_tpg, mapped_lun,
 			config_item_name(acl_ci), &ret);
-	if (!(lacl))
+	if (!(lacl)) {
+		ret = -EINVAL;
 		goto out;
+	}
+
+	lacl_cg = &lacl->se_lun_group;
+	lacl_cg->default_groups = kzalloc(sizeof(struct config_group) * 2,
+				GFP_KERNEL);
+	if (!lacl_cg->default_groups) {
+		printk(KERN_ERR "Unable to allocate lacl_cg->default_groups\n");
+		ret = -ENOMEM;
+		goto out;
+	}
 
 	config_group_init_type_name(&lacl->se_lun_group, name,
 			&TF_CIT_TMPL(tf)->tfc_tpg_mappedlun_cit);
+	config_group_init_type_name(&lacl->ml_stat_grps.stat_group,
+			"statistics", &TF_CIT_TMPL(tf)->tfc_tpg_mappedlun_stat_cit);
+	lacl_cg->default_groups[0] = &lacl->ml_stat_grps.stat_group;
+	lacl_cg->default_groups[1] = NULL;
+
+	ml_stat_grp = &ML_STAT_GRPS(lacl)->stat_group;
+	ml_stat_grp->default_groups = kzalloc(sizeof(struct config_group) * 3,
+				GFP_KERNEL);
+	if (!ml_stat_grp->default_groups) {
+		printk(KERN_ERR "Unable to allocate ml_stat_grp->default_groups\n");
+		ret = -ENOMEM;
+		goto out;
+	}
+	target_stat_setup_mappedlun_default_groups(lacl);
 
 	kfree(buf);
 	return &lacl->se_lun_group;
 out:
+	if (lacl_cg)
+		kfree(lacl_cg->default_groups);
 	kfree(buf);
 	return ERR_PTR(ret);
 }
@@ -347,6 +402,28 @@ static void target_fabric_drop_mappedlun(
 	struct config_group *group,
 	struct config_item *item)
 {
+	struct se_lun_acl *lacl = container_of(to_config_group(item),
+			struct se_lun_acl, se_lun_group);
+	struct config_item *df_item;
+	struct config_group *lacl_cg = NULL, *ml_stat_grp = NULL;
+	int i;
+
+	ml_stat_grp = &ML_STAT_GRPS(lacl)->stat_group;
+	for (i = 0; ml_stat_grp->default_groups[i]; i++) {
+		df_item = &ml_stat_grp->default_groups[i]->cg_item;
+		ml_stat_grp->default_groups[i] = NULL;
+		config_item_put(df_item);
+	}
+	kfree(ml_stat_grp->default_groups);
+
+	lacl_cg = &lacl->se_lun_group;
+	for (i = 0; lacl_cg->default_groups[i]; i++) {
+		df_item = &lacl_cg->default_groups[i]->cg_item;
+		lacl_cg->default_groups[i] = NULL;
+		config_item_put(df_item);
+	}
+	kfree(lacl_cg->default_groups);
+
 	config_item_put(item);
 }
 
@@ -376,6 +453,15 @@ TF_CIT_SETUP(tpg_nacl_base, &target_fabric_nacl_base_item_ops,
 
 /* End of tfc_tpg_nacl_base_cit */
 
+/* Start of tfc_node_fabric_stats_cit */
+/*
+ * This is used as a placeholder for struct se_node_acl->acl_fabric_stat_group
+ * to allow fabrics access to ->acl_fabric_stat_group->default_groups[]
+ */
+TF_CIT_SETUP(tpg_nacl_stat, NULL, NULL, NULL);
+
+/* End of tfc_wwn_fabric_stats_cit */
+
 /* Start of tfc_tpg_nacl_cit */
 
 static struct config_group *target_fabric_make_nodeacl(
@@ -402,7 +488,8 @@ static struct config_group *target_fabric_make_nodeacl(
 	nacl_cg->default_groups[0] = &se_nacl->acl_attrib_group;
 	nacl_cg->default_groups[1] = &se_nacl->acl_auth_group;
 	nacl_cg->default_groups[2] = &se_nacl->acl_param_group;
-	nacl_cg->default_groups[3] = NULL;
+	nacl_cg->default_groups[3] = &se_nacl->acl_fabric_stat_group;
+	nacl_cg->default_groups[4] = NULL;
 
 	config_group_init_type_name(&se_nacl->acl_group, name,
 			&TF_CIT_TMPL(tf)->tfc_tpg_nacl_base_cit);
@@ -412,6 +499,9 @@ static struct config_group *target_fabric_make_nodeacl(
 			&TF_CIT_TMPL(tf)->tfc_tpg_nacl_auth_cit);
 	config_group_init_type_name(&se_nacl->acl_param_group, "param",
 			&TF_CIT_TMPL(tf)->tfc_tpg_nacl_param_cit);
+	config_group_init_type_name(&se_nacl->acl_fabric_stat_group,
+			"fabric_statistics",
+			&TF_CIT_TMPL(tf)->tfc_tpg_nacl_stat_cit);
 
 	return &se_nacl->acl_group;
 }
@@ -758,6 +848,31 @@ TF_CIT_SETUP(tpg_port, &target_fabric_port_item_ops, NULL, target_fabric_port_at
 
 /* End of tfc_tpg_port_cit */
 
+/* Start of tfc_tpg_port_stat_cit */
+
+static struct config_group *target_core_port_stat_mkdir(
+	struct config_group *group,
+	const char *name)
+{
+	return ERR_PTR(-ENOSYS);
+}
+
+static void target_core_port_stat_rmdir(
+	struct config_group *group,
+	struct config_item *item)
+{
+	return;
+}
+
+static struct configfs_group_operations target_fabric_port_stat_group_ops = {
+	.make_group		= target_core_port_stat_mkdir,
+	.drop_item		= target_core_port_stat_rmdir,
+};
+
+TF_CIT_SETUP(tpg_port_stat, NULL, &target_fabric_port_stat_group_ops, NULL);
+
+/* End of tfc_tpg_port_stat_cit */
+
 /* Start of tfc_tpg_lun_cit */
 
 static struct config_group *target_fabric_make_lun(
@@ -768,7 +883,9 @@ static struct config_group *target_fabric_make_lun(
 	struct se_portal_group *se_tpg = container_of(group,
 			struct se_portal_group, tpg_lun_group);
 	struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf;
+	struct config_group *lun_cg = NULL, *port_stat_grp = NULL;
 	unsigned long unpacked_lun;
+	int errno;
 
 	if (strstr(name, "lun_") != name) {
 		printk(KERN_ERR "Unable to locate \'_\" in"
@@ -782,16 +899,64 @@ static struct config_group *target_fabric_make_lun(
 	if (!(lun))
 		return ERR_PTR(-EINVAL);
 
+	lun_cg = &lun->lun_group;
+	lun_cg->default_groups = kzalloc(sizeof(struct config_group) * 2,
+				GFP_KERNEL);
+	if (!lun_cg->default_groups) {
+		printk(KERN_ERR "Unable to allocate lun_cg->default_groups\n");
+		return ERR_PTR(-ENOMEM);
+	}
+
 	config_group_init_type_name(&lun->lun_group, name,
 			&TF_CIT_TMPL(tf)->tfc_tpg_port_cit);
+	config_group_init_type_name(&lun->port_stat_grps.stat_group,
+			"statistics", &TF_CIT_TMPL(tf)->tfc_tpg_port_stat_cit);
+	lun_cg->default_groups[0] = &lun->port_stat_grps.stat_group;
+	lun_cg->default_groups[1] = NULL;
+
+	port_stat_grp = &PORT_STAT_GRP(lun)->stat_group;
+	port_stat_grp->default_groups =  kzalloc(sizeof(struct config_group) * 3,
+				GFP_KERNEL);
+	if (!port_stat_grp->default_groups) {
+		printk(KERN_ERR "Unable to allocate port_stat_grp->default_groups\n");
+		errno = -ENOMEM;
+		goto out;
+	}
+	target_stat_setup_port_default_groups(lun);
 
 	return &lun->lun_group;
+out:
+	if (lun_cg)
+		kfree(lun_cg->default_groups);
+	return ERR_PTR(errno);
 }
 
 static void target_fabric_drop_lun(
 	struct config_group *group,
 	struct config_item *item)
 {
+	struct se_lun *lun = container_of(to_config_group(item),
+				struct se_lun, lun_group);
+	struct config_item *df_item;
+	struct config_group *lun_cg, *port_stat_grp;
+	int i;
+
+	port_stat_grp = &PORT_STAT_GRP(lun)->stat_group;
+	for (i = 0; port_stat_grp->default_groups[i]; i++) {
+		df_item = &port_stat_grp->default_groups[i]->cg_item;
+		port_stat_grp->default_groups[i] = NULL;
+		config_item_put(df_item);
+	}
+	kfree(port_stat_grp->default_groups);
+
+	lun_cg = &lun->lun_group;
+	for (i = 0; lun_cg->default_groups[i]; i++) {
+		df_item = &lun_cg->default_groups[i]->cg_item;
+		lun_cg->default_groups[i] = NULL;
+		config_item_put(df_item);
+	}
+	kfree(lun_cg->default_groups);
+
 	config_item_put(item);
 }
 
@@ -946,6 +1111,15 @@ TF_CIT_SETUP(tpg, &target_fabric_tpg_item_ops, &target_fabric_tpg_group_ops,
 
 /* End of tfc_tpg_cit */
 
+/* Start of tfc_wwn_fabric_stats_cit */
+/*
+ * This is used as a placeholder for struct se_wwn->fabric_stat_group
+ * to allow fabrics access to ->fabric_stat_group->default_groups[]
+ */
+TF_CIT_SETUP(wwn_fabric_stats, NULL, NULL, NULL);
+
+/* End of tfc_wwn_fabric_stats_cit */
+
 /* Start of tfc_wwn_cit */
 
 static struct config_group *target_fabric_make_wwn(
@@ -966,8 +1140,17 @@ static struct config_group *target_fabric_make_wwn(
 		return ERR_PTR(-EINVAL);
 
 	wwn->wwn_tf = tf;
+	/*
+	 * Setup default groups from pre-allocated wwn->wwn_default_groups
+	 */
+	wwn->wwn_group.default_groups = wwn->wwn_default_groups;
+	wwn->wwn_group.default_groups[0] = &wwn->fabric_stat_group;
+	wwn->wwn_group.default_groups[1] = NULL;
+
 	config_group_init_type_name(&wwn->wwn_group, name,
 			&TF_CIT_TMPL(tf)->tfc_tpg_cit);
+	config_group_init_type_name(&wwn->fabric_stat_group, "fabric_statistics",
+			&TF_CIT_TMPL(tf)->tfc_wwn_fabric_stats_cit);
 
 	return &wwn->wwn_group;
 }
@@ -976,6 +1159,18 @@ static void target_fabric_drop_wwn(
 	struct config_group *group,
 	struct config_item *item)
 {
+	struct se_wwn *wwn = container_of(to_config_group(item),
+				struct se_wwn, wwn_group);
+	struct config_item *df_item;
+	struct config_group *cg = &wwn->wwn_group;
+	int i;
+
+	for (i = 0; cg->default_groups[i]; i++) {
+		df_item = &cg->default_groups[i]->cg_item;
+		cg->default_groups[i] = NULL;
+		config_item_put(df_item);
+	}
+
 	config_item_put(item);
 }
 
@@ -1015,9 +1210,11 @@ int target_fabric_setup_cits(struct target_fabric_configfs *tf)
 {
 	target_fabric_setup_discovery_cit(tf);
 	target_fabric_setup_wwn_cit(tf);
+	target_fabric_setup_wwn_fabric_stats_cit(tf);
 	target_fabric_setup_tpg_cit(tf);
 	target_fabric_setup_tpg_base_cit(tf);
 	target_fabric_setup_tpg_port_cit(tf);
+	target_fabric_setup_tpg_port_stat_cit(tf);
 	target_fabric_setup_tpg_lun_cit(tf);
 	target_fabric_setup_tpg_np_cit(tf);
 	target_fabric_setup_tpg_np_base_cit(tf);
@@ -1028,7 +1225,9 @@ int target_fabric_setup_cits(struct target_fabric_configfs *tf)
 	target_fabric_setup_tpg_nacl_attrib_cit(tf);
 	target_fabric_setup_tpg_nacl_auth_cit(tf);
 	target_fabric_setup_tpg_nacl_param_cit(tf);
+	target_fabric_setup_tpg_nacl_stat_cit(tf);
 	target_fabric_setup_tpg_mappedlun_cit(tf);
+	target_fabric_setup_tpg_mappedlun_stat_cit(tf);
 
 	return 0;
 }
diff --git a/drivers/target/target_core_fabric_lib.c b/drivers/target/target_core_fabric_lib.c
index a3c695adabec..1e193f324895 100644
--- a/drivers/target/target_core_fabric_lib.c
+++ b/drivers/target/target_core_fabric_lib.c
@@ -34,6 +34,7 @@
 #include <target/target_core_base.h>
 #include <target/target_core_device.h>
 #include <target/target_core_transport.h>
+#include <target/target_core_fabric_lib.h>
 #include <target/target_core_fabric_ops.h>
 #include <target/target_core_configfs.h>
 
@@ -432,7 +433,7 @@ char *iscsi_parse_pr_out_transport_id(
 		/*
 		 * Go ahead and do the lower case conversion of the received
 		 * 12 ASCII characters representing the ISID in the TransportID
-		 * for comparision against the running iSCSI session's ISID from
+		 * for comparison against the running iSCSI session's ISID from
 		 * iscsi_target.c:lio_sess_get_initiator_sid()
 		 */
 		for (i = 0; i < 12; i++) {
diff --git a/drivers/target/target_core_file.c b/drivers/target/target_core_file.c
index 190ca8ac2498..150c4305f385 100644
--- a/drivers/target/target_core_file.c
+++ b/drivers/target/target_core_file.c
@@ -134,7 +134,7 @@ static struct se_device *fd_create_virtdevice(
 	mm_segment_t old_fs;
 	struct file *file;
 	struct inode *inode = NULL;
-	int dev_flags = 0, flags;
+	int dev_flags = 0, flags, ret = -EINVAL;
 
 	memset(&dev_limits, 0, sizeof(struct se_dev_limits));
 
@@ -146,6 +146,7 @@ static struct se_device *fd_create_virtdevice(
 	if (IS_ERR(dev_p)) {
 		printk(KERN_ERR "getname(%s) failed: %lu\n",
 			fd_dev->fd_dev_name, IS_ERR(dev_p));
+		ret = PTR_ERR(dev_p);
 		goto fail;
 	}
 #if 0
@@ -158,15 +159,19 @@ static struct se_device *fd_create_virtdevice(
 #endif
 /*	flags |= O_DIRECT; */
 	/*
-	 * If fd_buffered_io=1 has not been set explictly (the default),
+	 * If fd_buffered_io=1 has not been set explicitly (the default),
 	 * use O_SYNC to force FILEIO writes to disk.
 	 */
 	if (!(fd_dev->fbd_flags & FDBD_USE_BUFFERED_IO))
 		flags |= O_SYNC;
 
 	file = filp_open(dev_p, flags, 0600);
-
-	if (IS_ERR(file) || !file || !file->f_dentry) {
+	if (IS_ERR(file)) {
+		printk(KERN_ERR "filp_open(%s) failed\n", dev_p);
+		ret = PTR_ERR(file);
+		goto fail;
+	}
+	if (!file || !file->f_dentry) {
 		printk(KERN_ERR "filp_open(%s) failed\n", dev_p);
 		goto fail;
 	}
@@ -241,7 +246,7 @@ fail:
 		fd_dev->fd_file = NULL;
 	}
 	putname(dev_p);
-	return NULL;
+	return ERR_PTR(ret);
 }
 
 /*	fd_free_device(): (Part of se_subsystem_api_t template)
@@ -509,7 +514,7 @@ enum {
 static match_table_t tokens = {
 	{Opt_fd_dev_name, "fd_dev_name=%s"},
 	{Opt_fd_dev_size, "fd_dev_size=%s"},
-	{Opt_fd_buffered_io, "fd_buffered_id=%d"},
+	{Opt_fd_buffered_io, "fd_buffered_io=%d"},
 	{Opt_err, NULL}
 };
 
@@ -536,15 +541,26 @@ static ssize_t fd_set_configfs_dev_params(
 		token = match_token(ptr, tokens, args);
 		switch (token) {
 		case Opt_fd_dev_name:
+			arg_p = match_strdup(&args[0]);
+			if (!arg_p) {
+				ret = -ENOMEM;
+				break;
+			}
 			snprintf(fd_dev->fd_dev_name, FD_MAX_DEV_NAME,
-					"%s", match_strdup(&args[0]));
+					"%s", arg_p);
+			kfree(arg_p);
 			printk(KERN_INFO "FILEIO: Referencing Path: %s\n",
 					fd_dev->fd_dev_name);
 			fd_dev->fbd_flags |= FBDF_HAS_PATH;
 			break;
 		case Opt_fd_dev_size:
 			arg_p = match_strdup(&args[0]);
+			if (!arg_p) {
+				ret = -ENOMEM;
+				break;
+			}
 			ret = strict_strtoull(arg_p, 0, &fd_dev->fd_dev_size);
+			kfree(arg_p);
 			if (ret < 0) {
 				printk(KERN_ERR "strict_strtoull() failed for"
 						" fd_dev_size=\n");
diff --git a/drivers/target/target_core_hba.c b/drivers/target/target_core_hba.c
index 6ec51cbc018e..0b8f8da89019 100644
--- a/drivers/target/target_core_hba.c
+++ b/drivers/target/target_core_hba.c
@@ -151,19 +151,8 @@ out_free_hba:
 int
 core_delete_hba(struct se_hba *hba)
 {
-	struct se_device *dev, *dev_tmp;
-
-	spin_lock(&hba->device_lock);
-	list_for_each_entry_safe(dev, dev_tmp, &hba->hba_dev_list, dev_list) {
-
-		se_clear_dev_ports(dev);
-		spin_unlock(&hba->device_lock);
-
-		se_release_device_for_hba(dev);
-
-		spin_lock(&hba->device_lock);
-	}
-	spin_unlock(&hba->device_lock);
+	if (!list_empty(&hba->hba_dev_list))
+		dump_stack();
 
 	hba->transport->detach_hba(hba);
 
diff --git a/drivers/target/target_core_iblock.c b/drivers/target/target_core_iblock.c
index eb0afec046e1..86639004af9e 100644
--- a/drivers/target/target_core_iblock.c
+++ b/drivers/target/target_core_iblock.c
@@ -129,10 +129,11 @@ static struct se_device *iblock_create_virtdevice(
 	struct request_queue *q;
 	struct queue_limits *limits;
 	u32 dev_flags = 0;
+	int ret = -EINVAL;
 
 	if (!(ib_dev)) {
 		printk(KERN_ERR "Unable to locate struct iblock_dev parameter\n");
-		return 0;
+		return ERR_PTR(ret);
 	}
 	memset(&dev_limits, 0, sizeof(struct se_dev_limits));
 	/*
@@ -141,7 +142,7 @@ static struct se_device *iblock_create_virtdevice(
 	ib_dev->ibd_bio_set = bioset_create(32, 64);
 	if (!(ib_dev->ibd_bio_set)) {
 		printk(KERN_ERR "IBLOCK: Unable to create bioset()\n");
-		return 0;
+		return ERR_PTR(-ENOMEM);
 	}
 	printk(KERN_INFO "IBLOCK: Created bio_set()\n");
 	/*
@@ -153,8 +154,10 @@ static struct se_device *iblock_create_virtdevice(
 
 	bd = blkdev_get_by_path(ib_dev->ibd_udev_path,
 				FMODE_WRITE|FMODE_READ|FMODE_EXCL, ib_dev);
-	if (IS_ERR(bd))
+	if (IS_ERR(bd)) {
+		ret = PTR_ERR(bd);
 		goto failed;
+	}
 	/*
 	 * Setup the local scope queue_limits from struct request_queue->limits
 	 * to pass into transport_add_device_to_core_hba() as struct se_dev_limits.
@@ -184,9 +187,7 @@ static struct se_device *iblock_create_virtdevice(
 	 * the QUEUE_FLAG_DISCARD bit for UNMAP/WRITE_SAME in SCSI + TRIM
 	 * in ATA and we need to set TPE=1
 	 */
-	if (blk_queue_discard(bdev_get_queue(bd))) {
-		struct request_queue *q = bdev_get_queue(bd);
-
+	if (blk_queue_discard(q)) {
 		DEV_ATTRIB(dev)->max_unmap_lba_count =
 				q->limits.max_discard_sectors;
 		/*
@@ -212,7 +213,7 @@ failed:
 	ib_dev->ibd_bd = NULL;
 	ib_dev->ibd_major = 0;
 	ib_dev->ibd_minor = 0;
-	return NULL;
+	return ERR_PTR(ret);
 }
 
 static void iblock_free_device(void *p)
@@ -467,7 +468,7 @@ static ssize_t iblock_set_configfs_dev_params(struct se_hba *hba,
 					       const char *page, ssize_t count)
 {
 	struct iblock_dev *ib_dev = se_dev->se_dev_su_ptr;
-	char *orig, *ptr, *opts;
+	char *orig, *ptr, *arg_p, *opts;
 	substring_t args[MAX_OPT_ARGS];
 	int ret = 0, arg, token;
 
@@ -490,9 +491,14 @@ static ssize_t iblock_set_configfs_dev_params(struct se_hba *hba,
 				ret = -EEXIST;
 				goto out;
 			}
-
-			ret = snprintf(ib_dev->ibd_udev_path, SE_UDEV_PATH_LEN,
-				"%s", match_strdup(&args[0]));
+			arg_p = match_strdup(&args[0]);
+			if (!arg_p) {
+				ret = -ENOMEM;
+				break;
+			}
+			snprintf(ib_dev->ibd_udev_path, SE_UDEV_PATH_LEN,
+					"%s", arg_p);
+			kfree(arg_p);
 			printk(KERN_INFO "IBLOCK: Referencing UDEV path: %s\n",
 					ib_dev->ibd_udev_path);
 			ib_dev->ibd_flags |= IBDF_HAS_UDEV_PATH;
diff --git a/drivers/target/target_core_pr.c b/drivers/target/target_core_pr.c
index 2521f75362c3..a79f518ca6e2 100644
--- a/drivers/target/target_core_pr.c
+++ b/drivers/target/target_core_pr.c
@@ -478,7 +478,7 @@ static int core_scsi3_pr_seq_non_holder(
 		break;
 	}
 	/*
-	 * Case where the CDB is explictly allowed in the above switch
+	 * Case where the CDB is explicitly allowed in the above switch
 	 * statement.
 	 */
 	if (!(ret) && !(other_cdb)) {
@@ -3735,7 +3735,7 @@ static int core_scsi3_emulate_pr_out(struct se_cmd *cmd, unsigned char *cdb)
 		return PYX_TRANSPORT_LU_COMM_FAILURE;
 
 	if (cmd->data_length < 24) {
-		printk(KERN_WARNING "SPC-PR: Recieved PR OUT parameter list"
+		printk(KERN_WARNING "SPC-PR: Received PR OUT parameter list"
 			" length too small: %u\n", cmd->data_length);
 		return PYX_TRANSPORT_INVALID_PARAMETER_LIST;
 	}
@@ -3778,7 +3778,7 @@ static int core_scsi3_emulate_pr_out(struct se_cmd *cmd, unsigned char *cdb)
 	 */
 	if (!(spec_i_pt) && ((cdb[1] & 0x1f) != PRO_REGISTER_AND_MOVE) &&
 	    (cmd->data_length != 24)) {
-		printk(KERN_WARNING "SPC-PR: Recieved PR OUT illegal parameter"
+		printk(KERN_WARNING "SPC-PR: Received PR OUT illegal parameter"
 			" list length: %u\n", cmd->data_length);
 		return PYX_TRANSPORT_INVALID_PARAMETER_LIST;
 	}
diff --git a/drivers/target/target_core_pscsi.c b/drivers/target/target_core_pscsi.c
index 5a9d2ba4b609..7ff6a35f26ac 100644
--- a/drivers/target/target_core_pscsi.c
+++ b/drivers/target/target_core_pscsi.c
@@ -441,6 +441,7 @@ static struct se_device *pscsi_create_type_disk(
 	struct pscsi_dev_virt *pdv,
 	struct se_subsystem_dev *se_dev,
 	struct se_hba *hba)
+	__releases(sh->host_lock)
 {
 	struct se_device *dev;
 	struct pscsi_hba_virt *phv = (struct pscsi_hba_virt *)pdv->pdv_se_hba->hba_ptr;
@@ -488,6 +489,7 @@ static struct se_device *pscsi_create_type_rom(
 	struct pscsi_dev_virt *pdv,
 	struct se_subsystem_dev *se_dev,
 	struct se_hba *hba)
+	__releases(sh->host_lock)
 {
 	struct se_device *dev;
 	struct pscsi_hba_virt *phv = (struct pscsi_hba_virt *)pdv->pdv_se_hba->hba_ptr;
@@ -522,6 +524,7 @@ static struct se_device *pscsi_create_type_other(
 	struct pscsi_dev_virt *pdv,
 	struct se_subsystem_dev *se_dev,
 	struct se_hba *hba)
+	__releases(sh->host_lock)
 {
 	struct se_device *dev;
 	struct pscsi_hba_virt *phv = (struct pscsi_hba_virt *)pdv->pdv_se_hba->hba_ptr;
@@ -555,7 +558,7 @@ static struct se_device *pscsi_create_virtdevice(
 	if (!(pdv)) {
 		printk(KERN_ERR "Unable to locate struct pscsi_dev_virt"
 				" parameter\n");
-		return NULL;
+		return ERR_PTR(-EINVAL);
 	}
 	/*
 	 * If not running in PHV_LLD_SCSI_HOST_NO mode, locate the
@@ -565,7 +568,7 @@ static struct se_device *pscsi_create_virtdevice(
 		if (phv->phv_mode == PHV_LLD_SCSI_HOST_NO) {
 			printk(KERN_ERR "pSCSI: Unable to locate struct"
 				" Scsi_Host for PHV_LLD_SCSI_HOST_NO\n");
-			return NULL;
+			return ERR_PTR(-ENODEV);
 		}
 		/*
 		 * For the newer PHV_VIRUTAL_HOST_ID struct scsi_device
@@ -574,7 +577,7 @@ static struct se_device *pscsi_create_virtdevice(
 		if (!(se_dev->su_dev_flags & SDF_USING_UDEV_PATH)) {
 			printk(KERN_ERR "pSCSI: udev_path attribute has not"
 				" been set before ENABLE=1\n");
-			return NULL;
+			return ERR_PTR(-EINVAL);
 		}
 		/*
 		 * If no scsi_host_id= was passed for PHV_VIRUTAL_HOST_ID,
@@ -587,12 +590,12 @@ static struct se_device *pscsi_create_virtdevice(
 				printk(KERN_ERR "pSCSI: Unable to set hba_mode"
 					" with active devices\n");
 				spin_unlock(&hba->device_lock);
-				return NULL;
+				return ERR_PTR(-EEXIST);
 			}
 			spin_unlock(&hba->device_lock);
 
 			if (pscsi_pmode_enable_hba(hba, 1) != 1)
-				return NULL;
+				return ERR_PTR(-ENODEV);
 
 			legacy_mode_enable = 1;
 			hba->hba_flags |= HBA_FLAGS_PSCSI_MODE;
@@ -602,14 +605,14 @@ static struct se_device *pscsi_create_virtdevice(
 			if (!(sh)) {
 				printk(KERN_ERR "pSCSI: Unable to locate"
 					" pdv_host_id: %d\n", pdv->pdv_host_id);
-				return NULL;
+				return ERR_PTR(-ENODEV);
 			}
 		}
 	} else {
 		if (phv->phv_mode == PHV_VIRUTAL_HOST_ID) {
 			printk(KERN_ERR "pSCSI: PHV_VIRUTAL_HOST_ID set while"
 				" struct Scsi_Host exists\n");
-			return NULL;
+			return ERR_PTR(-EEXIST);
 		}
 	}
 
@@ -644,7 +647,7 @@ static struct se_device *pscsi_create_virtdevice(
 				hba->hba_flags &= ~HBA_FLAGS_PSCSI_MODE;
 			}
 			pdv->pdv_sd = NULL;
-			return NULL;
+			return ERR_PTR(-ENODEV);
 		}
 		return dev;
 	}
@@ -660,7 +663,7 @@ static struct se_device *pscsi_create_virtdevice(
 		hba->hba_flags &= ~HBA_FLAGS_PSCSI_MODE;
 	}
 
-	return NULL;
+	return ERR_PTR(-ENODEV);
 }
 
 /*	pscsi_free_device(): (Part of se_subsystem_api_t template)
@@ -816,6 +819,7 @@ pscsi_alloc_task(struct se_cmd *cmd)
 		if (!(pt->pscsi_cdb)) {
 			printk(KERN_ERR "pSCSI: Unable to allocate extended"
 					" pt->pscsi_cdb\n");
+			kfree(pt);
 			return NULL;
 		}
 	} else
diff --git a/drivers/target/target_core_rd.c b/drivers/target/target_core_rd.c
index 8dc6d74c1d40..7837dd365a9d 100644
--- a/drivers/target/target_core_rd.c
+++ b/drivers/target/target_core_rd.c
@@ -150,7 +150,7 @@ static int rd_build_device_space(struct rd_dev *rd_dev)
 	if (rd_dev->rd_page_count <= 0) {
 		printk(KERN_ERR "Illegal page count: %u for Ramdisk device\n",
 			rd_dev->rd_page_count);
-		return -1;
+		return -EINVAL;
 	}
 	total_sg_needed = rd_dev->rd_page_count;
 
@@ -160,7 +160,7 @@ static int rd_build_device_space(struct rd_dev *rd_dev)
 	if (!(sg_table)) {
 		printk(KERN_ERR "Unable to allocate memory for Ramdisk"
 			" scatterlist tables\n");
-		return -1;
+		return -ENOMEM;
 	}
 
 	rd_dev->sg_table_array = sg_table;
@@ -175,7 +175,7 @@ static int rd_build_device_space(struct rd_dev *rd_dev)
 		if (!(sg)) {
 			printk(KERN_ERR "Unable to allocate scatterlist array"
 				" for struct rd_dev\n");
-			return -1;
+			return -ENOMEM;
 		}
 
 		sg_init_table((struct scatterlist *)&sg[0], sg_per_table);
@@ -191,7 +191,7 @@ static int rd_build_device_space(struct rd_dev *rd_dev)
 			if (!(pg)) {
 				printk(KERN_ERR "Unable to allocate scatterlist"
 					" pages for struct rd_dev_sg_table\n");
-				return -1;
+				return -ENOMEM;
 			}
 			sg_assign_page(&sg[j], pg);
 			sg[j].length = PAGE_SIZE;
@@ -253,12 +253,13 @@ static struct se_device *rd_create_virtdevice(
 	struct se_dev_limits dev_limits;
 	struct rd_dev *rd_dev = p;
 	struct rd_host *rd_host = hba->hba_ptr;
-	int dev_flags = 0;
+	int dev_flags = 0, ret;
 	char prod[16], rev[4];
 
 	memset(&dev_limits, 0, sizeof(struct se_dev_limits));
 
-	if (rd_build_device_space(rd_dev) < 0)
+	ret = rd_build_device_space(rd_dev);
+	if (ret < 0)
 		goto fail;
 
 	snprintf(prod, 16, "RAMDISK-%s", (rd_dev->rd_direct) ? "DR" : "MCP");
@@ -292,7 +293,7 @@ static struct se_device *rd_create_virtdevice(
 
 fail:
 	rd_release_device_space(rd_dev);
-	return NULL;
+	return ERR_PTR(ret);
 }
 
 static struct se_device *rd_DIRECT_create_virtdevice(
diff --git a/drivers/target/target_core_rd.h b/drivers/target/target_core_rd.h
index 13badfbaf9c0..3ea19e29d8ec 100644
--- a/drivers/target/target_core_rd.h
+++ b/drivers/target/target_core_rd.h
@@ -14,8 +14,6 @@
 #define RD_BLOCKSIZE		512
 #define RD_MAX_SECTORS		1024
 
-extern struct kmem_cache *se_mem_cache;
-
 /* Used in target_core_init_configfs() for virtual LUN 0 access */
 int __init rd_module_init(void);
 void rd_module_exit(void);
diff --git a/drivers/target/target_core_stat.c b/drivers/target/target_core_stat.c
new file mode 100644
index 000000000000..5e3a067a7475
--- /dev/null
+++ b/drivers/target/target_core_stat.c
@@ -0,0 +1,1810 @@
+/*******************************************************************************
+ * Filename:  target_core_stat.c
+ *
+ * Copyright (c) 2011 Rising Tide Systems
+ * Copyright (c) 2011 Linux-iSCSI.org
+ *
+ * Modern ConfigFS group context specific statistics based on original
+ * target_core_mib.c code
+ *
+ * Copyright (c) 2006-2007 SBE, Inc.  All Rights Reserved.
+ *
+ * Nicholas A. Bellinger <nab@linux-iscsi.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ ******************************************************************************/
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/timer.h>
+#include <linux/string.h>
+#include <linux/version.h>
+#include <generated/utsrelease.h>
+#include <linux/utsname.h>
+#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
+#include <linux/blkdev.h>
+#include <linux/configfs.h>
+#include <scsi/scsi.h>
+#include <scsi/scsi_device.h>
+#include <scsi/scsi_host.h>
+
+#include <target/target_core_base.h>
+#include <target/target_core_transport.h>
+#include <target/target_core_fabric_ops.h>
+#include <target/target_core_configfs.h>
+#include <target/configfs_macros.h>
+
+#include "target_core_hba.h"
+
+#ifndef INITIAL_JIFFIES
+#define INITIAL_JIFFIES ((unsigned long)(unsigned int) (-300*HZ))
+#endif
+
+#define NONE		"None"
+#define ISPRINT(a)   ((a >= ' ') && (a <= '~'))
+
+#define SCSI_LU_INDEX			1
+#define LU_COUNT			1
+
+/*
+ * SCSI Device Table
+ */
+
+CONFIGFS_EATTR_STRUCT(target_stat_scsi_dev, se_dev_stat_grps);
+#define DEV_STAT_SCSI_DEV_ATTR(_name, _mode)				\
+static struct target_stat_scsi_dev_attribute				\
+			target_stat_scsi_dev_##_name =			\
+	__CONFIGFS_EATTR(_name, _mode,					\
+	target_stat_scsi_dev_show_attr_##_name,				\
+	target_stat_scsi_dev_store_attr_##_name);
+
+#define DEV_STAT_SCSI_DEV_ATTR_RO(_name)				\
+static struct target_stat_scsi_dev_attribute				\
+			target_stat_scsi_dev_##_name =			\
+	__CONFIGFS_EATTR_RO(_name,					\
+	target_stat_scsi_dev_show_attr_##_name);
+
+static ssize_t target_stat_scsi_dev_show_attr_inst(
+	struct se_dev_stat_grps *sgrps, char *page)
+{
+	struct se_subsystem_dev *se_subdev = container_of(sgrps,
+			struct se_subsystem_dev, dev_stat_grps);
+	struct se_hba *hba = se_subdev->se_dev_hba;
+	struct se_device *dev = se_subdev->se_dev_ptr;
+
+	if (!dev)
+		return -ENODEV;
+
+	return snprintf(page, PAGE_SIZE, "%u\n", hba->hba_index);
+}
+DEV_STAT_SCSI_DEV_ATTR_RO(inst);
+
+static ssize_t target_stat_scsi_dev_show_attr_indx(
+	struct se_dev_stat_grps *sgrps, char *page)
+{
+	struct se_subsystem_dev *se_subdev = container_of(sgrps,
+			struct se_subsystem_dev, dev_stat_grps);
+	struct se_device *dev = se_subdev->se_dev_ptr;
+
+	if (!dev)
+		return -ENODEV;
+
+	return snprintf(page, PAGE_SIZE, "%u\n", dev->dev_index);
+}
+DEV_STAT_SCSI_DEV_ATTR_RO(indx);
+
+static ssize_t target_stat_scsi_dev_show_attr_role(
+	struct se_dev_stat_grps *sgrps, char *page)
+{
+	struct se_subsystem_dev *se_subdev = container_of(sgrps,
+			struct se_subsystem_dev, dev_stat_grps);
+	struct se_device *dev = se_subdev->se_dev_ptr;
+
+	if (!dev)
+		return -ENODEV;
+
+	return snprintf(page, PAGE_SIZE, "Target\n");
+}
+DEV_STAT_SCSI_DEV_ATTR_RO(role);
+
+static ssize_t target_stat_scsi_dev_show_attr_ports(
+	struct se_dev_stat_grps *sgrps, char *page)
+{
+	struct se_subsystem_dev *se_subdev = container_of(sgrps,
+			struct se_subsystem_dev, dev_stat_grps);
+	struct se_device *dev = se_subdev->se_dev_ptr;
+
+	if (!dev)
+		return -ENODEV;
+
+	return snprintf(page, PAGE_SIZE, "%u\n", dev->dev_port_count);
+}
+DEV_STAT_SCSI_DEV_ATTR_RO(ports);
+
+CONFIGFS_EATTR_OPS(target_stat_scsi_dev, se_dev_stat_grps, scsi_dev_group);
+
+static struct configfs_attribute *target_stat_scsi_dev_attrs[] = {
+	&target_stat_scsi_dev_inst.attr,
+	&target_stat_scsi_dev_indx.attr,
+	&target_stat_scsi_dev_role.attr,
+	&target_stat_scsi_dev_ports.attr,
+	NULL,
+};
+
+static struct configfs_item_operations target_stat_scsi_dev_attrib_ops = {
+	.show_attribute		= target_stat_scsi_dev_attr_show,
+	.store_attribute	= target_stat_scsi_dev_attr_store,
+};
+
+static struct config_item_type target_stat_scsi_dev_cit = {
+	.ct_item_ops		= &target_stat_scsi_dev_attrib_ops,
+	.ct_attrs		= target_stat_scsi_dev_attrs,
+	.ct_owner		= THIS_MODULE,
+};
+
+/*
+ * SCSI Target Device Table
+ */
+
+CONFIGFS_EATTR_STRUCT(target_stat_scsi_tgt_dev, se_dev_stat_grps);
+#define DEV_STAT_SCSI_TGT_DEV_ATTR(_name, _mode)			\
+static struct target_stat_scsi_tgt_dev_attribute			\
+			target_stat_scsi_tgt_dev_##_name =		\
+	__CONFIGFS_EATTR(_name, _mode,					\
+	target_stat_scsi_tgt_dev_show_attr_##_name,			\
+	target_stat_scsi_tgt_dev_store_attr_##_name);
+
+#define DEV_STAT_SCSI_TGT_DEV_ATTR_RO(_name)				\
+static struct target_stat_scsi_tgt_dev_attribute			\
+			target_stat_scsi_tgt_dev_##_name =		\
+	__CONFIGFS_EATTR_RO(_name,					\
+	target_stat_scsi_tgt_dev_show_attr_##_name);
+
+static ssize_t target_stat_scsi_tgt_dev_show_attr_inst(
+	struct se_dev_stat_grps *sgrps, char *page)
+{
+	struct se_subsystem_dev *se_subdev = container_of(sgrps,
+			struct se_subsystem_dev, dev_stat_grps);
+	struct se_hba *hba = se_subdev->se_dev_hba;
+	struct se_device *dev = se_subdev->se_dev_ptr;
+
+	if (!dev)
+		return -ENODEV;
+
+	return snprintf(page, PAGE_SIZE, "%u\n", hba->hba_index);
+}
+DEV_STAT_SCSI_TGT_DEV_ATTR_RO(inst);
+
+static ssize_t target_stat_scsi_tgt_dev_show_attr_indx(
+	struct se_dev_stat_grps *sgrps, char *page)
+{
+	struct se_subsystem_dev *se_subdev = container_of(sgrps,
+			struct se_subsystem_dev, dev_stat_grps);
+	struct se_device *dev = se_subdev->se_dev_ptr;
+
+	if (!dev)
+		return -ENODEV;
+
+	return snprintf(page, PAGE_SIZE, "%u\n", dev->dev_index);
+}
+DEV_STAT_SCSI_TGT_DEV_ATTR_RO(indx);
+
+static ssize_t target_stat_scsi_tgt_dev_show_attr_num_lus(
+	struct se_dev_stat_grps *sgrps, char *page)
+{
+	struct se_subsystem_dev *se_subdev = container_of(sgrps,
+			struct se_subsystem_dev, dev_stat_grps);
+	struct se_device *dev = se_subdev->se_dev_ptr;
+
+	if (!dev)
+		return -ENODEV;
+
+	return snprintf(page, PAGE_SIZE, "%u\n", LU_COUNT);
+}
+DEV_STAT_SCSI_TGT_DEV_ATTR_RO(num_lus);
+
+static ssize_t target_stat_scsi_tgt_dev_show_attr_status(
+	struct se_dev_stat_grps *sgrps, char *page)
+{
+	struct se_subsystem_dev *se_subdev = container_of(sgrps,
+			struct se_subsystem_dev, dev_stat_grps);
+	struct se_device *dev = se_subdev->se_dev_ptr;
+	char status[16];
+
+	if (!dev)
+		return -ENODEV;
+
+	switch (dev->dev_status) {
+	case TRANSPORT_DEVICE_ACTIVATED:
+		strcpy(status, "activated");
+		break;
+	case TRANSPORT_DEVICE_DEACTIVATED:
+		strcpy(status, "deactivated");
+		break;
+	case TRANSPORT_DEVICE_SHUTDOWN:
+		strcpy(status, "shutdown");
+		break;
+	case TRANSPORT_DEVICE_OFFLINE_ACTIVATED:
+	case TRANSPORT_DEVICE_OFFLINE_DEACTIVATED:
+		strcpy(status, "offline");
+		break;
+	default:
+		sprintf(status, "unknown(%d)", dev->dev_status);
+		break;
+	}
+
+	return snprintf(page, PAGE_SIZE, "%s\n", status);
+}
+DEV_STAT_SCSI_TGT_DEV_ATTR_RO(status);
+
+static ssize_t target_stat_scsi_tgt_dev_show_attr_non_access_lus(
+	struct se_dev_stat_grps *sgrps, char *page)
+{
+	struct se_subsystem_dev *se_subdev = container_of(sgrps,
+			struct se_subsystem_dev, dev_stat_grps);
+	struct se_device *dev = se_subdev->se_dev_ptr;
+	int non_accessible_lus;
+
+	if (!dev)
+		return -ENODEV;
+
+	switch (dev->dev_status) {
+	case TRANSPORT_DEVICE_ACTIVATED:
+		non_accessible_lus = 0;
+		break;
+	case TRANSPORT_DEVICE_DEACTIVATED:
+	case TRANSPORT_DEVICE_SHUTDOWN:
+	case TRANSPORT_DEVICE_OFFLINE_ACTIVATED:
+	case TRANSPORT_DEVICE_OFFLINE_DEACTIVATED:
+	default:
+		non_accessible_lus = 1;
+		break;
+	}
+
+	return snprintf(page, PAGE_SIZE, "%u\n", non_accessible_lus);
+}
+DEV_STAT_SCSI_TGT_DEV_ATTR_RO(non_access_lus);
+
+static ssize_t target_stat_scsi_tgt_dev_show_attr_resets(
+	struct se_dev_stat_grps *sgrps, char *page)
+{
+	struct se_subsystem_dev *se_subdev = container_of(sgrps,
+			struct se_subsystem_dev, dev_stat_grps);
+	struct se_device *dev = se_subdev->se_dev_ptr;
+
+	if (!dev)
+		return -ENODEV;
+
+	return snprintf(page, PAGE_SIZE, "%u\n", dev->num_resets);
+}
+DEV_STAT_SCSI_TGT_DEV_ATTR_RO(resets);
+
+
+CONFIGFS_EATTR_OPS(target_stat_scsi_tgt_dev, se_dev_stat_grps, scsi_tgt_dev_group);
+
+static struct configfs_attribute *target_stat_scsi_tgt_dev_attrs[] = {
+	&target_stat_scsi_tgt_dev_inst.attr,
+	&target_stat_scsi_tgt_dev_indx.attr,
+	&target_stat_scsi_tgt_dev_num_lus.attr,
+	&target_stat_scsi_tgt_dev_status.attr,
+	&target_stat_scsi_tgt_dev_non_access_lus.attr,
+	&target_stat_scsi_tgt_dev_resets.attr,
+	NULL,
+};
+
+static struct configfs_item_operations target_stat_scsi_tgt_dev_attrib_ops = {
+	.show_attribute		= target_stat_scsi_tgt_dev_attr_show,
+	.store_attribute	= target_stat_scsi_tgt_dev_attr_store,
+};
+
+static struct config_item_type target_stat_scsi_tgt_dev_cit = {
+	.ct_item_ops		= &target_stat_scsi_tgt_dev_attrib_ops,
+	.ct_attrs		= target_stat_scsi_tgt_dev_attrs,
+	.ct_owner		= THIS_MODULE,
+};
+
+/*
+ * SCSI Logical Unit Table
+ */
+
+CONFIGFS_EATTR_STRUCT(target_stat_scsi_lu, se_dev_stat_grps);
+#define DEV_STAT_SCSI_LU_ATTR(_name, _mode)				\
+static struct target_stat_scsi_lu_attribute target_stat_scsi_lu_##_name = \
+	__CONFIGFS_EATTR(_name, _mode,					\
+	target_stat_scsi_lu_show_attr_##_name,				\
+	target_stat_scsi_lu_store_attr_##_name);
+
+#define DEV_STAT_SCSI_LU_ATTR_RO(_name)					\
+static struct target_stat_scsi_lu_attribute target_stat_scsi_lu_##_name = \
+	__CONFIGFS_EATTR_RO(_name,					\
+	target_stat_scsi_lu_show_attr_##_name);
+
+static ssize_t target_stat_scsi_lu_show_attr_inst(
+	struct se_dev_stat_grps *sgrps, char *page)
+{
+	struct se_subsystem_dev *se_subdev = container_of(sgrps,
+			struct se_subsystem_dev, dev_stat_grps);
+	struct se_hba *hba = se_subdev->se_dev_hba;
+	struct se_device *dev = se_subdev->se_dev_ptr;
+
+	if (!dev)
+		return -ENODEV;
+
+	return snprintf(page, PAGE_SIZE, "%u\n", hba->hba_index);
+}
+DEV_STAT_SCSI_LU_ATTR_RO(inst);
+
+static ssize_t target_stat_scsi_lu_show_attr_dev(
+	struct se_dev_stat_grps *sgrps, char *page)
+{
+	struct se_subsystem_dev *se_subdev = container_of(sgrps,
+			struct se_subsystem_dev, dev_stat_grps);
+	struct se_device *dev = se_subdev->se_dev_ptr;
+
+	if (!dev)
+		return -ENODEV;
+
+	return snprintf(page, PAGE_SIZE, "%u\n", dev->dev_index);
+}
+DEV_STAT_SCSI_LU_ATTR_RO(dev);
+
+static ssize_t target_stat_scsi_lu_show_attr_indx(
+	struct se_dev_stat_grps *sgrps, char *page)
+{
+	struct se_subsystem_dev *se_subdev = container_of(sgrps,
+			struct se_subsystem_dev, dev_stat_grps);
+	struct se_device *dev = se_subdev->se_dev_ptr;
+
+	if (!dev)
+		return -ENODEV;
+
+	return snprintf(page, PAGE_SIZE, "%u\n", SCSI_LU_INDEX);
+}
+DEV_STAT_SCSI_LU_ATTR_RO(indx);
+
+static ssize_t target_stat_scsi_lu_show_attr_lun(
+	struct se_dev_stat_grps *sgrps, char *page)
+{
+	struct se_subsystem_dev *se_subdev = container_of(sgrps,
+			struct se_subsystem_dev, dev_stat_grps);
+	struct se_device *dev = se_subdev->se_dev_ptr;
+
+	if (!dev)
+		return -ENODEV;
+	/* FIXME: scsiLuDefaultLun */
+	return snprintf(page, PAGE_SIZE, "%llu\n", (unsigned long long)0);
+}
+DEV_STAT_SCSI_LU_ATTR_RO(lun);
+
+static ssize_t target_stat_scsi_lu_show_attr_lu_name(
+	struct se_dev_stat_grps *sgrps, char *page)
+{
+	struct se_subsystem_dev *se_subdev = container_of(sgrps,
+			struct se_subsystem_dev, dev_stat_grps);
+	struct se_device *dev = se_subdev->se_dev_ptr;
+
+	if (!dev)
+		return -ENODEV;
+	/* scsiLuWwnName */
+	return snprintf(page, PAGE_SIZE, "%s\n",
+			(strlen(DEV_T10_WWN(dev)->unit_serial)) ?
+			(char *)&DEV_T10_WWN(dev)->unit_serial[0] : "None");
+}
+DEV_STAT_SCSI_LU_ATTR_RO(lu_name);
+
+static ssize_t target_stat_scsi_lu_show_attr_vend(
+	struct se_dev_stat_grps *sgrps, char *page)
+{
+	struct se_subsystem_dev *se_subdev = container_of(sgrps,
+			struct se_subsystem_dev, dev_stat_grps);
+	struct se_device *dev = se_subdev->se_dev_ptr;
+	int j;
+	char str[28];
+
+	if (!dev)
+		return -ENODEV;
+	/* scsiLuVendorId */
+	memcpy(&str[0], (void *)DEV_T10_WWN(dev), 28);
+	for (j = 0; j < 8; j++)
+		str[j] = ISPRINT(DEV_T10_WWN(dev)->vendor[j]) ?
+				DEV_T10_WWN(dev)->vendor[j] : 0x20;
+	str[8] = 0;
+	return snprintf(page, PAGE_SIZE, "%s\n", str);
+}
+DEV_STAT_SCSI_LU_ATTR_RO(vend);
+
+static ssize_t target_stat_scsi_lu_show_attr_prod(
+	struct se_dev_stat_grps *sgrps, char *page)
+{
+	struct se_subsystem_dev *se_subdev = container_of(sgrps,
+			struct se_subsystem_dev, dev_stat_grps);
+	struct se_device *dev = se_subdev->se_dev_ptr;
+	int j;
+	char str[28];
+
+	if (!dev)
+		return -ENODEV;
+
+	/* scsiLuProductId */
+	memcpy(&str[0], (void *)DEV_T10_WWN(dev), 28);
+	for (j = 0; j < 16; j++)
+		str[j] = ISPRINT(DEV_T10_WWN(dev)->model[j]) ?
+				DEV_T10_WWN(dev)->model[j] : 0x20;
+	str[16] = 0;
+	return snprintf(page, PAGE_SIZE, "%s\n", str);
+}
+DEV_STAT_SCSI_LU_ATTR_RO(prod);
+
+static ssize_t target_stat_scsi_lu_show_attr_rev(
+	struct se_dev_stat_grps *sgrps, char *page)
+{
+	struct se_subsystem_dev *se_subdev = container_of(sgrps,
+			struct se_subsystem_dev, dev_stat_grps);
+	struct se_device *dev = se_subdev->se_dev_ptr;
+	int j;
+	char str[28];
+
+	if (!dev)
+		return -ENODEV;
+
+	/* scsiLuRevisionId */
+	memcpy(&str[0], (void *)DEV_T10_WWN(dev), 28);
+	for (j = 0; j < 4; j++)
+		str[j] = ISPRINT(DEV_T10_WWN(dev)->revision[j]) ?
+				DEV_T10_WWN(dev)->revision[j] : 0x20;
+	str[4] = 0;
+	return snprintf(page, PAGE_SIZE, "%s\n", str);
+}
+DEV_STAT_SCSI_LU_ATTR_RO(rev);
+
+static ssize_t target_stat_scsi_lu_show_attr_dev_type(
+	struct se_dev_stat_grps *sgrps, char *page)
+{
+	struct se_subsystem_dev *se_subdev = container_of(sgrps,
+			struct se_subsystem_dev, dev_stat_grps);
+	struct se_device *dev = se_subdev->se_dev_ptr;
+
+	if (!dev)
+		return -ENODEV;
+
+	/* scsiLuPeripheralType */
+	return snprintf(page, PAGE_SIZE, "%u\n",
+			TRANSPORT(dev)->get_device_type(dev));
+}
+DEV_STAT_SCSI_LU_ATTR_RO(dev_type);
+
+static ssize_t target_stat_scsi_lu_show_attr_status(
+	struct se_dev_stat_grps *sgrps, char *page)
+{
+	struct se_subsystem_dev *se_subdev = container_of(sgrps,
+			struct se_subsystem_dev, dev_stat_grps);
+	struct se_device *dev = se_subdev->se_dev_ptr;
+
+	if (!dev)
+		return -ENODEV;
+
+	/* scsiLuStatus */
+	return snprintf(page, PAGE_SIZE, "%s\n",
+		(dev->dev_status == TRANSPORT_DEVICE_ACTIVATED) ?
+		"available" : "notavailable");
+}
+DEV_STAT_SCSI_LU_ATTR_RO(status);
+
+static ssize_t target_stat_scsi_lu_show_attr_state_bit(
+	struct se_dev_stat_grps *sgrps, char *page)
+{
+	struct se_subsystem_dev *se_subdev = container_of(sgrps,
+			struct se_subsystem_dev, dev_stat_grps);
+	struct se_device *dev = se_subdev->se_dev_ptr;
+
+	if (!dev)
+		return -ENODEV;
+
+	/* scsiLuState */
+	return snprintf(page, PAGE_SIZE, "exposed\n");
+}
+DEV_STAT_SCSI_LU_ATTR_RO(state_bit);
+
+static ssize_t target_stat_scsi_lu_show_attr_num_cmds(
+	struct se_dev_stat_grps *sgrps, char *page)
+{
+	struct se_subsystem_dev *se_subdev = container_of(sgrps,
+			struct se_subsystem_dev, dev_stat_grps);
+	struct se_device *dev = se_subdev->se_dev_ptr;
+
+	if (!dev)
+		return -ENODEV;
+
+	/* scsiLuNumCommands */
+	return snprintf(page, PAGE_SIZE, "%llu\n",
+			(unsigned long long)dev->num_cmds);
+}
+DEV_STAT_SCSI_LU_ATTR_RO(num_cmds);
+
+static ssize_t target_stat_scsi_lu_show_attr_read_mbytes(
+	struct se_dev_stat_grps *sgrps, char *page)
+{
+	struct se_subsystem_dev *se_subdev = container_of(sgrps,
+			struct se_subsystem_dev, dev_stat_grps);
+	struct se_device *dev = se_subdev->se_dev_ptr;
+
+	if (!dev)
+		return -ENODEV;
+
+	/* scsiLuReadMegaBytes */
+	return snprintf(page, PAGE_SIZE, "%u\n", (u32)(dev->read_bytes >> 20));
+}
+DEV_STAT_SCSI_LU_ATTR_RO(read_mbytes);
+
+static ssize_t target_stat_scsi_lu_show_attr_write_mbytes(
+	struct se_dev_stat_grps *sgrps, char *page)
+{
+	struct se_subsystem_dev *se_subdev = container_of(sgrps,
+			struct se_subsystem_dev, dev_stat_grps);
+	struct se_device *dev = se_subdev->se_dev_ptr;
+
+	if (!dev)
+		return -ENODEV;
+
+	/* scsiLuWrittenMegaBytes */
+	return snprintf(page, PAGE_SIZE, "%u\n", (u32)(dev->write_bytes >> 20));
+}
+DEV_STAT_SCSI_LU_ATTR_RO(write_mbytes);
+
+static ssize_t target_stat_scsi_lu_show_attr_resets(
+	struct se_dev_stat_grps *sgrps, char *page)
+{
+	struct se_subsystem_dev *se_subdev = container_of(sgrps,
+			struct se_subsystem_dev, dev_stat_grps);
+	struct se_device *dev = se_subdev->se_dev_ptr;
+
+	if (!dev)
+		return -ENODEV;
+
+	/* scsiLuInResets */
+	return snprintf(page, PAGE_SIZE, "%u\n", dev->num_resets);
+}
+DEV_STAT_SCSI_LU_ATTR_RO(resets);
+
+static ssize_t target_stat_scsi_lu_show_attr_full_stat(
+	struct se_dev_stat_grps *sgrps, char *page)
+{
+	struct se_subsystem_dev *se_subdev = container_of(sgrps,
+			struct se_subsystem_dev, dev_stat_grps);
+	struct se_device *dev = se_subdev->se_dev_ptr;
+
+	if (!dev)
+		return -ENODEV;
+
+	/* FIXME: scsiLuOutTaskSetFullStatus */
+	return snprintf(page, PAGE_SIZE, "%u\n", 0);
+}
+DEV_STAT_SCSI_LU_ATTR_RO(full_stat);
+
+static ssize_t target_stat_scsi_lu_show_attr_hs_num_cmds(
+	struct se_dev_stat_grps *sgrps, char *page)
+{
+	struct se_subsystem_dev *se_subdev = container_of(sgrps,
+			struct se_subsystem_dev, dev_stat_grps);
+	struct se_device *dev = se_subdev->se_dev_ptr;
+
+	if (!dev)
+		return -ENODEV;
+
+	/* FIXME: scsiLuHSInCommands */
+	return snprintf(page, PAGE_SIZE, "%u\n", 0);
+}
+DEV_STAT_SCSI_LU_ATTR_RO(hs_num_cmds);
+
+static ssize_t target_stat_scsi_lu_show_attr_creation_time(
+	struct se_dev_stat_grps *sgrps, char *page)
+{
+	struct se_subsystem_dev *se_subdev = container_of(sgrps,
+			struct se_subsystem_dev, dev_stat_grps);
+	struct se_device *dev = se_subdev->se_dev_ptr;
+
+	if (!dev)
+		return -ENODEV;
+
+	/* scsiLuCreationTime */
+	return snprintf(page, PAGE_SIZE, "%u\n", (u32)(((u32)dev->creation_time -
+				INITIAL_JIFFIES) * 100 / HZ));
+}
+DEV_STAT_SCSI_LU_ATTR_RO(creation_time);
+
+CONFIGFS_EATTR_OPS(target_stat_scsi_lu, se_dev_stat_grps, scsi_lu_group);
+
+static struct configfs_attribute *target_stat_scsi_lu_attrs[] = {
+	&target_stat_scsi_lu_inst.attr,
+	&target_stat_scsi_lu_dev.attr,
+	&target_stat_scsi_lu_indx.attr,
+	&target_stat_scsi_lu_lun.attr,
+	&target_stat_scsi_lu_lu_name.attr,
+	&target_stat_scsi_lu_vend.attr,
+	&target_stat_scsi_lu_prod.attr,
+	&target_stat_scsi_lu_rev.attr,
+	&target_stat_scsi_lu_dev_type.attr,
+	&target_stat_scsi_lu_status.attr,
+	&target_stat_scsi_lu_state_bit.attr,
+	&target_stat_scsi_lu_num_cmds.attr,
+	&target_stat_scsi_lu_read_mbytes.attr,
+	&target_stat_scsi_lu_write_mbytes.attr,
+	&target_stat_scsi_lu_resets.attr,
+	&target_stat_scsi_lu_full_stat.attr,
+	&target_stat_scsi_lu_hs_num_cmds.attr,
+	&target_stat_scsi_lu_creation_time.attr,
+	NULL,
+};
+
+static struct configfs_item_operations target_stat_scsi_lu_attrib_ops = {
+	.show_attribute		= target_stat_scsi_lu_attr_show,
+	.store_attribute	= target_stat_scsi_lu_attr_store,
+};
+
+static struct config_item_type target_stat_scsi_lu_cit = {
+	.ct_item_ops		= &target_stat_scsi_lu_attrib_ops,
+	.ct_attrs		= target_stat_scsi_lu_attrs,
+	.ct_owner		= THIS_MODULE,
+};
+
+/*
+ * Called from target_core_configfs.c:target_core_make_subdev() to setup
+ * the target statistics groups + configfs CITs located in target_core_stat.c
+ */
+void target_stat_setup_dev_default_groups(struct se_subsystem_dev *se_subdev)
+{
+	struct config_group *dev_stat_grp = &DEV_STAT_GRP(se_subdev)->stat_group;
+
+	config_group_init_type_name(&DEV_STAT_GRP(se_subdev)->scsi_dev_group,
+			"scsi_dev", &target_stat_scsi_dev_cit);
+	config_group_init_type_name(&DEV_STAT_GRP(se_subdev)->scsi_tgt_dev_group,
+			"scsi_tgt_dev", &target_stat_scsi_tgt_dev_cit);
+	config_group_init_type_name(&DEV_STAT_GRP(se_subdev)->scsi_lu_group,
+			"scsi_lu", &target_stat_scsi_lu_cit);
+
+	dev_stat_grp->default_groups[0] = &DEV_STAT_GRP(se_subdev)->scsi_dev_group;
+	dev_stat_grp->default_groups[1] = &DEV_STAT_GRP(se_subdev)->scsi_tgt_dev_group;
+	dev_stat_grp->default_groups[2] = &DEV_STAT_GRP(se_subdev)->scsi_lu_group;
+	dev_stat_grp->default_groups[3] = NULL;
+}
+
+/*
+ * SCSI Port Table
+ */
+
+CONFIGFS_EATTR_STRUCT(target_stat_scsi_port, se_port_stat_grps);
+#define DEV_STAT_SCSI_PORT_ATTR(_name, _mode)				\
+static struct target_stat_scsi_port_attribute				\
+			target_stat_scsi_port_##_name =			\
+	__CONFIGFS_EATTR(_name, _mode,					\
+	target_stat_scsi_port_show_attr_##_name,			\
+	target_stat_scsi_port_store_attr_##_name);
+
+#define DEV_STAT_SCSI_PORT_ATTR_RO(_name)				\
+static struct target_stat_scsi_port_attribute				\
+			target_stat_scsi_port_##_name =			\
+	__CONFIGFS_EATTR_RO(_name,					\
+	target_stat_scsi_port_show_attr_##_name);
+
+static ssize_t target_stat_scsi_port_show_attr_inst(
+	struct se_port_stat_grps *pgrps, char *page)
+{
+	struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
+	struct se_port *sep;
+	struct se_device *dev = lun->lun_se_dev;
+	struct se_hba *hba;
+	ssize_t ret;
+
+	spin_lock(&lun->lun_sep_lock);
+	sep = lun->lun_sep;
+	if (!sep) {
+		spin_unlock(&lun->lun_sep_lock);
+		return -ENODEV;
+	}
+	hba = dev->se_hba;
+	ret = snprintf(page, PAGE_SIZE, "%u\n", hba->hba_index);
+	spin_unlock(&lun->lun_sep_lock);
+	return ret;
+}
+DEV_STAT_SCSI_PORT_ATTR_RO(inst);
+
+static ssize_t target_stat_scsi_port_show_attr_dev(
+	struct se_port_stat_grps *pgrps, char *page)
+{
+	struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
+	struct se_port *sep;
+	struct se_device *dev = lun->lun_se_dev;
+	ssize_t ret;
+
+	spin_lock(&lun->lun_sep_lock);
+	sep = lun->lun_sep;
+	if (!sep) {
+		spin_unlock(&lun->lun_sep_lock);
+		return -ENODEV;
+	}
+	ret = snprintf(page, PAGE_SIZE, "%u\n", dev->dev_index);
+	spin_unlock(&lun->lun_sep_lock);
+	return ret;
+}
+DEV_STAT_SCSI_PORT_ATTR_RO(dev);
+
+static ssize_t target_stat_scsi_port_show_attr_indx(
+	struct se_port_stat_grps *pgrps, char *page)
+{
+	struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
+	struct se_port *sep;
+	ssize_t ret;
+
+	spin_lock(&lun->lun_sep_lock);
+	sep = lun->lun_sep;
+	if (!sep) {
+		spin_unlock(&lun->lun_sep_lock);
+		return -ENODEV;
+	}
+	ret = snprintf(page, PAGE_SIZE, "%u\n", sep->sep_index);
+	spin_unlock(&lun->lun_sep_lock);
+	return ret;
+}
+DEV_STAT_SCSI_PORT_ATTR_RO(indx);
+
+static ssize_t target_stat_scsi_port_show_attr_role(
+	struct se_port_stat_grps *pgrps, char *page)
+{
+	struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
+	struct se_device *dev = lun->lun_se_dev;
+	struct se_port *sep;
+	ssize_t ret;
+
+	if (!dev)
+		return -ENODEV;
+
+	spin_lock(&lun->lun_sep_lock);
+	sep = lun->lun_sep;
+	if (!sep) {
+		spin_unlock(&lun->lun_sep_lock);
+		return -ENODEV;
+	}
+	ret = snprintf(page, PAGE_SIZE, "%s%u\n", "Device", dev->dev_index);
+	spin_unlock(&lun->lun_sep_lock);
+	return ret;
+}
+DEV_STAT_SCSI_PORT_ATTR_RO(role);
+
+static ssize_t target_stat_scsi_port_show_attr_busy_count(
+	struct se_port_stat_grps *pgrps, char *page)
+{
+	struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
+	struct se_port *sep;
+	ssize_t ret;
+
+	spin_lock(&lun->lun_sep_lock);
+	sep = lun->lun_sep;
+	if (!sep) {
+		spin_unlock(&lun->lun_sep_lock);
+		return -ENODEV;
+	}
+	/* FIXME: scsiPortBusyStatuses  */
+	ret = snprintf(page, PAGE_SIZE, "%u\n", 0);
+	spin_unlock(&lun->lun_sep_lock);
+	return ret;
+}
+DEV_STAT_SCSI_PORT_ATTR_RO(busy_count);
+
+CONFIGFS_EATTR_OPS(target_stat_scsi_port, se_port_stat_grps, scsi_port_group);
+
+static struct configfs_attribute *target_stat_scsi_port_attrs[] = {
+	&target_stat_scsi_port_inst.attr,
+	&target_stat_scsi_port_dev.attr,
+	&target_stat_scsi_port_indx.attr,
+	&target_stat_scsi_port_role.attr,
+	&target_stat_scsi_port_busy_count.attr,
+	NULL,
+};
+
+static struct configfs_item_operations target_stat_scsi_port_attrib_ops = {
+	.show_attribute		= target_stat_scsi_port_attr_show,
+	.store_attribute	= target_stat_scsi_port_attr_store,
+};
+
+static struct config_item_type target_stat_scsi_port_cit = {
+	.ct_item_ops		= &target_stat_scsi_port_attrib_ops,
+	.ct_attrs		= target_stat_scsi_port_attrs,
+	.ct_owner		= THIS_MODULE,
+};
+
+/*
+ * SCSI Target Port Table
+ */
+CONFIGFS_EATTR_STRUCT(target_stat_scsi_tgt_port, se_port_stat_grps);
+#define DEV_STAT_SCSI_TGT_PORT_ATTR(_name, _mode)			\
+static struct target_stat_scsi_tgt_port_attribute			\
+			target_stat_scsi_tgt_port_##_name =		\
+	__CONFIGFS_EATTR(_name, _mode,					\
+	target_stat_scsi_tgt_port_show_attr_##_name,			\
+	target_stat_scsi_tgt_port_store_attr_##_name);
+
+#define DEV_STAT_SCSI_TGT_PORT_ATTR_RO(_name)				\
+static struct target_stat_scsi_tgt_port_attribute			\
+			target_stat_scsi_tgt_port_##_name =		\
+	__CONFIGFS_EATTR_RO(_name,					\
+	target_stat_scsi_tgt_port_show_attr_##_name);
+
+static ssize_t target_stat_scsi_tgt_port_show_attr_inst(
+	struct se_port_stat_grps *pgrps, char *page)
+{
+	struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
+	struct se_device *dev = lun->lun_se_dev;
+	struct se_port *sep;
+	struct se_hba *hba;
+	ssize_t ret;
+
+	spin_lock(&lun->lun_sep_lock);
+	sep = lun->lun_sep;
+	if (!sep) {
+		spin_unlock(&lun->lun_sep_lock);
+		return -ENODEV;
+	}
+	hba = dev->se_hba;
+	ret = snprintf(page, PAGE_SIZE, "%u\n", hba->hba_index);
+	spin_unlock(&lun->lun_sep_lock);
+	return ret;
+}
+DEV_STAT_SCSI_TGT_PORT_ATTR_RO(inst);
+
+static ssize_t target_stat_scsi_tgt_port_show_attr_dev(
+	struct se_port_stat_grps *pgrps, char *page)
+{
+	struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
+	struct se_device *dev = lun->lun_se_dev;
+	struct se_port *sep;
+	ssize_t ret;
+
+	spin_lock(&lun->lun_sep_lock);
+	sep = lun->lun_sep;
+	if (!sep) {
+		spin_unlock(&lun->lun_sep_lock);
+		return -ENODEV;
+	}
+	ret = snprintf(page, PAGE_SIZE, "%u\n", dev->dev_index);
+	spin_unlock(&lun->lun_sep_lock);
+	return ret;
+}
+DEV_STAT_SCSI_TGT_PORT_ATTR_RO(dev);
+
+static ssize_t target_stat_scsi_tgt_port_show_attr_indx(
+	struct se_port_stat_grps *pgrps, char *page)
+{
+	struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
+	struct se_port *sep;
+	ssize_t ret;
+
+	spin_lock(&lun->lun_sep_lock);
+	sep = lun->lun_sep;
+	if (!sep) {
+		spin_unlock(&lun->lun_sep_lock);
+		return -ENODEV;
+	}
+	ret = snprintf(page, PAGE_SIZE, "%u\n", sep->sep_index);
+	spin_unlock(&lun->lun_sep_lock);
+	return ret;
+}
+DEV_STAT_SCSI_TGT_PORT_ATTR_RO(indx);
+
+static ssize_t target_stat_scsi_tgt_port_show_attr_name(
+	struct se_port_stat_grps *pgrps, char *page)
+{
+	struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
+	struct se_port *sep;
+	struct se_portal_group *tpg;
+	ssize_t ret;
+
+	spin_lock(&lun->lun_sep_lock);
+	sep = lun->lun_sep;
+	if (!sep) {
+		spin_unlock(&lun->lun_sep_lock);
+		return -ENODEV;
+	}
+	tpg = sep->sep_tpg;
+
+	ret = snprintf(page, PAGE_SIZE, "%sPort#%u\n",
+		TPG_TFO(tpg)->get_fabric_name(), sep->sep_index);
+	spin_unlock(&lun->lun_sep_lock);
+	return ret;
+}
+DEV_STAT_SCSI_TGT_PORT_ATTR_RO(name);
+
+static ssize_t target_stat_scsi_tgt_port_show_attr_port_index(
+	struct se_port_stat_grps *pgrps, char *page)
+{
+	struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
+	struct se_port *sep;
+	struct se_portal_group *tpg;
+	ssize_t ret;
+
+	spin_lock(&lun->lun_sep_lock);
+	sep = lun->lun_sep;
+	if (!sep) {
+		spin_unlock(&lun->lun_sep_lock);
+		return -ENODEV;
+	}
+	tpg = sep->sep_tpg;
+
+	ret = snprintf(page, PAGE_SIZE, "%s%s%d\n",
+		TPG_TFO(tpg)->tpg_get_wwn(tpg), "+t+",
+		TPG_TFO(tpg)->tpg_get_tag(tpg));
+	spin_unlock(&lun->lun_sep_lock);
+	return ret;
+}
+DEV_STAT_SCSI_TGT_PORT_ATTR_RO(port_index);
+
+static ssize_t target_stat_scsi_tgt_port_show_attr_in_cmds(
+	struct se_port_stat_grps *pgrps, char *page)
+{
+	struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
+	struct se_port *sep;
+	struct se_portal_group *tpg;
+	ssize_t ret;
+
+	spin_lock(&lun->lun_sep_lock);
+	sep = lun->lun_sep;
+	if (!sep) {
+		spin_unlock(&lun->lun_sep_lock);
+		return -ENODEV;
+	}
+	tpg = sep->sep_tpg;
+
+	ret = snprintf(page, PAGE_SIZE, "%llu\n", sep->sep_stats.cmd_pdus);
+	spin_unlock(&lun->lun_sep_lock);
+	return ret;
+}
+DEV_STAT_SCSI_TGT_PORT_ATTR_RO(in_cmds);
+
+static ssize_t target_stat_scsi_tgt_port_show_attr_write_mbytes(
+	struct se_port_stat_grps *pgrps, char *page)
+{
+	struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
+	struct se_port *sep;
+	struct se_portal_group *tpg;
+	ssize_t ret;
+
+	spin_lock(&lun->lun_sep_lock);
+	sep = lun->lun_sep;
+	if (!sep) {
+		spin_unlock(&lun->lun_sep_lock);
+		return -ENODEV;
+	}
+	tpg = sep->sep_tpg;
+
+	ret = snprintf(page, PAGE_SIZE, "%u\n",
+			(u32)(sep->sep_stats.rx_data_octets >> 20));
+	spin_unlock(&lun->lun_sep_lock);
+	return ret;
+}
+DEV_STAT_SCSI_TGT_PORT_ATTR_RO(write_mbytes);
+
+static ssize_t target_stat_scsi_tgt_port_show_attr_read_mbytes(
+	struct se_port_stat_grps *pgrps, char *page)
+{
+	struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
+	struct se_port *sep;
+	struct se_portal_group *tpg;
+	ssize_t ret;
+
+	spin_lock(&lun->lun_sep_lock);
+	sep = lun->lun_sep;
+	if (!sep) {
+		spin_unlock(&lun->lun_sep_lock);
+		return -ENODEV;
+	}
+	tpg = sep->sep_tpg;
+
+	ret = snprintf(page, PAGE_SIZE, "%u\n",
+			(u32)(sep->sep_stats.tx_data_octets >> 20));
+	spin_unlock(&lun->lun_sep_lock);
+	return ret;
+}
+DEV_STAT_SCSI_TGT_PORT_ATTR_RO(read_mbytes);
+
+static ssize_t target_stat_scsi_tgt_port_show_attr_hs_in_cmds(
+	struct se_port_stat_grps *pgrps, char *page)
+{
+	struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
+	struct se_port *sep;
+	struct se_portal_group *tpg;
+	ssize_t ret;
+
+	spin_lock(&lun->lun_sep_lock);
+	sep = lun->lun_sep;
+	if (!sep) {
+		spin_unlock(&lun->lun_sep_lock);
+		return -ENODEV;
+	}
+	tpg = sep->sep_tpg;
+
+	/* FIXME: scsiTgtPortHsInCommands */
+	ret = snprintf(page, PAGE_SIZE, "%u\n", 0);
+	spin_unlock(&lun->lun_sep_lock);
+	return ret;
+}
+DEV_STAT_SCSI_TGT_PORT_ATTR_RO(hs_in_cmds);
+
+CONFIGFS_EATTR_OPS(target_stat_scsi_tgt_port, se_port_stat_grps,
+		scsi_tgt_port_group);
+
+static struct configfs_attribute *target_stat_scsi_tgt_port_attrs[] = {
+	&target_stat_scsi_tgt_port_inst.attr,
+	&target_stat_scsi_tgt_port_dev.attr,
+	&target_stat_scsi_tgt_port_indx.attr,
+	&target_stat_scsi_tgt_port_name.attr,
+	&target_stat_scsi_tgt_port_port_index.attr,
+	&target_stat_scsi_tgt_port_in_cmds.attr,
+	&target_stat_scsi_tgt_port_write_mbytes.attr,
+	&target_stat_scsi_tgt_port_read_mbytes.attr,
+	&target_stat_scsi_tgt_port_hs_in_cmds.attr,
+	NULL,
+};
+
+static struct configfs_item_operations target_stat_scsi_tgt_port_attrib_ops = {
+	.show_attribute		= target_stat_scsi_tgt_port_attr_show,
+	.store_attribute	= target_stat_scsi_tgt_port_attr_store,
+};
+
+static struct config_item_type target_stat_scsi_tgt_port_cit = {
+	.ct_item_ops		= &target_stat_scsi_tgt_port_attrib_ops,
+	.ct_attrs		= target_stat_scsi_tgt_port_attrs,
+	.ct_owner		= THIS_MODULE,
+};
+
+/*
+ * SCSI Transport Table
+o */
+
+CONFIGFS_EATTR_STRUCT(target_stat_scsi_transport, se_port_stat_grps);
+#define DEV_STAT_SCSI_TRANSPORT_ATTR(_name, _mode)			\
+static struct target_stat_scsi_transport_attribute			\
+			target_stat_scsi_transport_##_name =		\
+	__CONFIGFS_EATTR(_name, _mode,					\
+	target_stat_scsi_transport_show_attr_##_name,			\
+	target_stat_scsi_transport_store_attr_##_name);
+
+#define DEV_STAT_SCSI_TRANSPORT_ATTR_RO(_name)				\
+static struct target_stat_scsi_transport_attribute			\
+			target_stat_scsi_transport_##_name =		\
+	__CONFIGFS_EATTR_RO(_name,					\
+	target_stat_scsi_transport_show_attr_##_name);
+
+static ssize_t target_stat_scsi_transport_show_attr_inst(
+	struct se_port_stat_grps *pgrps, char *page)
+{
+	struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
+	struct se_device *dev = lun->lun_se_dev;
+	struct se_port *sep;
+	struct se_hba *hba;
+	ssize_t ret;
+
+	spin_lock(&lun->lun_sep_lock);
+	sep = lun->lun_sep;
+	if (!sep) {
+		spin_unlock(&lun->lun_sep_lock);
+		return -ENODEV;
+	}
+
+	hba = dev->se_hba;
+	ret = snprintf(page, PAGE_SIZE, "%u\n", hba->hba_index);
+	spin_unlock(&lun->lun_sep_lock);
+	return ret;
+}
+DEV_STAT_SCSI_TRANSPORT_ATTR_RO(inst);
+
+static ssize_t target_stat_scsi_transport_show_attr_device(
+	struct se_port_stat_grps *pgrps, char *page)
+{
+	struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
+	struct se_port *sep;
+	struct se_portal_group *tpg;
+	ssize_t ret;
+
+	spin_lock(&lun->lun_sep_lock);
+	sep = lun->lun_sep;
+	if (!sep) {
+		spin_unlock(&lun->lun_sep_lock);
+		return -ENODEV;
+	}
+	tpg = sep->sep_tpg;
+	/* scsiTransportType */
+	ret = snprintf(page, PAGE_SIZE, "scsiTransport%s\n",
+			TPG_TFO(tpg)->get_fabric_name());
+	spin_unlock(&lun->lun_sep_lock);
+	return ret;
+}
+DEV_STAT_SCSI_TRANSPORT_ATTR_RO(device);
+
+static ssize_t target_stat_scsi_transport_show_attr_indx(
+	struct se_port_stat_grps *pgrps, char *page)
+{
+	struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
+	struct se_port *sep;
+	struct se_portal_group *tpg;
+	ssize_t ret;
+
+	spin_lock(&lun->lun_sep_lock);
+	sep = lun->lun_sep;
+	if (!sep) {
+		spin_unlock(&lun->lun_sep_lock);
+		return -ENODEV;
+	}
+	tpg = sep->sep_tpg;
+	ret = snprintf(page, PAGE_SIZE, "%u\n",
+			TPG_TFO(tpg)->tpg_get_inst_index(tpg));
+	spin_unlock(&lun->lun_sep_lock);
+	return ret;
+}
+DEV_STAT_SCSI_TRANSPORT_ATTR_RO(indx);
+
+static ssize_t target_stat_scsi_transport_show_attr_dev_name(
+	struct se_port_stat_grps *pgrps, char *page)
+{
+	struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
+	struct se_device *dev = lun->lun_se_dev;
+	struct se_port *sep;
+	struct se_portal_group *tpg;
+	struct t10_wwn *wwn;
+	ssize_t ret;
+
+	spin_lock(&lun->lun_sep_lock);
+	sep = lun->lun_sep;
+	if (!sep) {
+		spin_unlock(&lun->lun_sep_lock);
+		return -ENODEV;
+	}
+	tpg = sep->sep_tpg;
+	wwn = DEV_T10_WWN(dev);
+	/* scsiTransportDevName */
+	ret = snprintf(page, PAGE_SIZE, "%s+%s\n",
+			TPG_TFO(tpg)->tpg_get_wwn(tpg),
+			(strlen(wwn->unit_serial)) ? wwn->unit_serial :
+			wwn->vendor);
+	spin_unlock(&lun->lun_sep_lock);
+	return ret;
+}
+DEV_STAT_SCSI_TRANSPORT_ATTR_RO(dev_name);
+
+CONFIGFS_EATTR_OPS(target_stat_scsi_transport, se_port_stat_grps,
+		scsi_transport_group);
+
+static struct configfs_attribute *target_stat_scsi_transport_attrs[] = {
+	&target_stat_scsi_transport_inst.attr,
+	&target_stat_scsi_transport_device.attr,
+	&target_stat_scsi_transport_indx.attr,
+	&target_stat_scsi_transport_dev_name.attr,
+	NULL,
+};
+
+static struct configfs_item_operations target_stat_scsi_transport_attrib_ops = {
+	.show_attribute		= target_stat_scsi_transport_attr_show,
+	.store_attribute	= target_stat_scsi_transport_attr_store,
+};
+
+static struct config_item_type target_stat_scsi_transport_cit = {
+	.ct_item_ops		= &target_stat_scsi_transport_attrib_ops,
+	.ct_attrs		= target_stat_scsi_transport_attrs,
+	.ct_owner		= THIS_MODULE,
+};
+
+/*
+ * Called from target_core_fabric_configfs.c:target_fabric_make_lun() to setup
+ * the target port statistics groups + configfs CITs located in target_core_stat.c
+ */
+void target_stat_setup_port_default_groups(struct se_lun *lun)
+{
+	struct config_group *port_stat_grp = &PORT_STAT_GRP(lun)->stat_group;
+
+	config_group_init_type_name(&PORT_STAT_GRP(lun)->scsi_port_group,
+			"scsi_port", &target_stat_scsi_port_cit);
+	config_group_init_type_name(&PORT_STAT_GRP(lun)->scsi_tgt_port_group,
+			"scsi_tgt_port", &target_stat_scsi_tgt_port_cit);
+	config_group_init_type_name(&PORT_STAT_GRP(lun)->scsi_transport_group,
+			"scsi_transport", &target_stat_scsi_transport_cit);
+
+	port_stat_grp->default_groups[0] = &PORT_STAT_GRP(lun)->scsi_port_group;
+	port_stat_grp->default_groups[1] = &PORT_STAT_GRP(lun)->scsi_tgt_port_group;
+	port_stat_grp->default_groups[2] = &PORT_STAT_GRP(lun)->scsi_transport_group;
+	port_stat_grp->default_groups[3] = NULL;
+}
+
+/*
+ * SCSI Authorized Initiator Table
+ */
+
+CONFIGFS_EATTR_STRUCT(target_stat_scsi_auth_intr, se_ml_stat_grps);
+#define DEV_STAT_SCSI_AUTH_INTR_ATTR(_name, _mode)			\
+static struct target_stat_scsi_auth_intr_attribute			\
+			target_stat_scsi_auth_intr_##_name =		\
+	__CONFIGFS_EATTR(_name, _mode,					\
+	target_stat_scsi_auth_intr_show_attr_##_name,			\
+	target_stat_scsi_auth_intr_store_attr_##_name);
+
+#define DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(_name)				\
+static struct target_stat_scsi_auth_intr_attribute			\
+			target_stat_scsi_auth_intr_##_name =		\
+	__CONFIGFS_EATTR_RO(_name,					\
+	target_stat_scsi_auth_intr_show_attr_##_name);
+
+static ssize_t target_stat_scsi_auth_intr_show_attr_inst(
+	struct se_ml_stat_grps *lgrps, char *page)
+{
+	struct se_lun_acl *lacl = container_of(lgrps,
+			struct se_lun_acl, ml_stat_grps);
+	struct se_node_acl *nacl = lacl->se_lun_nacl;
+	struct se_dev_entry *deve;
+	struct se_portal_group *tpg;
+	ssize_t ret;
+
+	spin_lock_irq(&nacl->device_list_lock);
+	deve = &nacl->device_list[lacl->mapped_lun];
+	if (!deve->se_lun || !deve->se_lun_acl) {
+		spin_unlock_irq(&nacl->device_list_lock);
+		return -ENODEV;
+	}
+	tpg = nacl->se_tpg;
+	/* scsiInstIndex */
+	ret = snprintf(page, PAGE_SIZE, "%u\n",
+			TPG_TFO(tpg)->tpg_get_inst_index(tpg));
+	spin_unlock_irq(&nacl->device_list_lock);
+	return ret;
+}
+DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(inst);
+
+static ssize_t target_stat_scsi_auth_intr_show_attr_dev(
+	struct se_ml_stat_grps *lgrps, char *page)
+{
+	struct se_lun_acl *lacl = container_of(lgrps,
+			struct se_lun_acl, ml_stat_grps);
+	struct se_node_acl *nacl = lacl->se_lun_nacl;
+	struct se_dev_entry *deve;
+	struct se_lun *lun;
+	struct se_portal_group *tpg;
+	ssize_t ret;
+
+	spin_lock_irq(&nacl->device_list_lock);
+	deve = &nacl->device_list[lacl->mapped_lun];
+	if (!deve->se_lun || !deve->se_lun_acl) {
+		spin_unlock_irq(&nacl->device_list_lock);
+		return -ENODEV;
+	}
+	tpg = nacl->se_tpg;
+	lun = deve->se_lun;
+	/* scsiDeviceIndex */
+	ret = snprintf(page, PAGE_SIZE, "%u\n", lun->lun_se_dev->dev_index);
+	spin_unlock_irq(&nacl->device_list_lock);
+	return ret;
+}
+DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(dev);
+
+static ssize_t target_stat_scsi_auth_intr_show_attr_port(
+	struct se_ml_stat_grps *lgrps, char *page)
+{
+	struct se_lun_acl *lacl = container_of(lgrps,
+			struct se_lun_acl, ml_stat_grps);
+	struct se_node_acl *nacl = lacl->se_lun_nacl;
+	struct se_dev_entry *deve;
+	struct se_portal_group *tpg;
+	ssize_t ret;
+
+	spin_lock_irq(&nacl->device_list_lock);
+	deve = &nacl->device_list[lacl->mapped_lun];
+	if (!deve->se_lun || !deve->se_lun_acl) {
+		spin_unlock_irq(&nacl->device_list_lock);
+		return -ENODEV;
+	}
+	tpg = nacl->se_tpg;
+	/* scsiAuthIntrTgtPortIndex */
+	ret = snprintf(page, PAGE_SIZE, "%u\n", TPG_TFO(tpg)->tpg_get_tag(tpg));
+	spin_unlock_irq(&nacl->device_list_lock);
+	return ret;
+}
+DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(port);
+
+static ssize_t target_stat_scsi_auth_intr_show_attr_indx(
+	struct se_ml_stat_grps *lgrps, char *page)
+{
+	struct se_lun_acl *lacl = container_of(lgrps,
+			struct se_lun_acl, ml_stat_grps);
+	struct se_node_acl *nacl = lacl->se_lun_nacl;
+	struct se_dev_entry *deve;
+	ssize_t ret;
+
+	spin_lock_irq(&nacl->device_list_lock);
+	deve = &nacl->device_list[lacl->mapped_lun];
+	if (!deve->se_lun || !deve->se_lun_acl) {
+		spin_unlock_irq(&nacl->device_list_lock);
+		return -ENODEV;
+	}
+	/* scsiAuthIntrIndex */
+	ret = snprintf(page, PAGE_SIZE, "%u\n", nacl->acl_index);
+	spin_unlock_irq(&nacl->device_list_lock);
+	return ret;
+}
+DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(indx);
+
+static ssize_t target_stat_scsi_auth_intr_show_attr_dev_or_port(
+	struct se_ml_stat_grps *lgrps, char *page)
+{
+	struct se_lun_acl *lacl = container_of(lgrps,
+			struct se_lun_acl, ml_stat_grps);
+	struct se_node_acl *nacl = lacl->se_lun_nacl;
+	struct se_dev_entry *deve;
+	ssize_t ret;
+
+	spin_lock_irq(&nacl->device_list_lock);
+	deve = &nacl->device_list[lacl->mapped_lun];
+	if (!deve->se_lun || !deve->se_lun_acl) {
+		spin_unlock_irq(&nacl->device_list_lock);
+		return -ENODEV;
+	}
+	/* scsiAuthIntrDevOrPort */
+	ret = snprintf(page, PAGE_SIZE, "%u\n", 1);
+	spin_unlock_irq(&nacl->device_list_lock);
+	return ret;
+}
+DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(dev_or_port);
+
+static ssize_t target_stat_scsi_auth_intr_show_attr_intr_name(
+	struct se_ml_stat_grps *lgrps, char *page)
+{
+	struct se_lun_acl *lacl = container_of(lgrps,
+			struct se_lun_acl, ml_stat_grps);
+	struct se_node_acl *nacl = lacl->se_lun_nacl;
+	struct se_dev_entry *deve;
+	ssize_t ret;
+
+	spin_lock_irq(&nacl->device_list_lock);
+	deve = &nacl->device_list[lacl->mapped_lun];
+	if (!deve->se_lun || !deve->se_lun_acl) {
+		spin_unlock_irq(&nacl->device_list_lock);
+		return -ENODEV;
+	}
+	/* scsiAuthIntrName */
+	ret = snprintf(page, PAGE_SIZE, "%s\n", nacl->initiatorname);
+	spin_unlock_irq(&nacl->device_list_lock);
+	return ret;
+}
+DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(intr_name);
+
+static ssize_t target_stat_scsi_auth_intr_show_attr_map_indx(
+	struct se_ml_stat_grps *lgrps, char *page)
+{
+	struct se_lun_acl *lacl = container_of(lgrps,
+			struct se_lun_acl, ml_stat_grps);
+	struct se_node_acl *nacl = lacl->se_lun_nacl;
+	struct se_dev_entry *deve;
+	ssize_t ret;
+
+	spin_lock_irq(&nacl->device_list_lock);
+	deve = &nacl->device_list[lacl->mapped_lun];
+	if (!deve->se_lun || !deve->se_lun_acl) {
+		spin_unlock_irq(&nacl->device_list_lock);
+		return -ENODEV;
+	}
+	/* FIXME: scsiAuthIntrLunMapIndex */
+	ret = snprintf(page, PAGE_SIZE, "%u\n", 0);
+	spin_unlock_irq(&nacl->device_list_lock);
+	return ret;
+}
+DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(map_indx);
+
+static ssize_t target_stat_scsi_auth_intr_show_attr_att_count(
+	struct se_ml_stat_grps *lgrps, char *page)
+{
+	struct se_lun_acl *lacl = container_of(lgrps,
+			struct se_lun_acl, ml_stat_grps);
+	struct se_node_acl *nacl = lacl->se_lun_nacl;
+	struct se_dev_entry *deve;
+	ssize_t ret;
+
+	spin_lock_irq(&nacl->device_list_lock);
+	deve = &nacl->device_list[lacl->mapped_lun];
+	if (!deve->se_lun || !deve->se_lun_acl) {
+		spin_unlock_irq(&nacl->device_list_lock);
+		return -ENODEV;
+	}
+	/* scsiAuthIntrAttachedTimes */
+	ret = snprintf(page, PAGE_SIZE, "%u\n", deve->attach_count);
+	spin_unlock_irq(&nacl->device_list_lock);
+	return ret;
+}
+DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(att_count);
+
+static ssize_t target_stat_scsi_auth_intr_show_attr_num_cmds(
+	struct se_ml_stat_grps *lgrps, char *page)
+{
+	struct se_lun_acl *lacl = container_of(lgrps,
+			struct se_lun_acl, ml_stat_grps);
+	struct se_node_acl *nacl = lacl->se_lun_nacl;
+	struct se_dev_entry *deve;
+	ssize_t ret;
+
+	spin_lock_irq(&nacl->device_list_lock);
+	deve = &nacl->device_list[lacl->mapped_lun];
+	if (!deve->se_lun || !deve->se_lun_acl) {
+		spin_unlock_irq(&nacl->device_list_lock);
+		return -ENODEV;
+	}
+	/* scsiAuthIntrOutCommands */
+	ret = snprintf(page, PAGE_SIZE, "%u\n", deve->total_cmds);
+	spin_unlock_irq(&nacl->device_list_lock);
+	return ret;
+}
+DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(num_cmds);
+
+static ssize_t target_stat_scsi_auth_intr_show_attr_read_mbytes(
+	struct se_ml_stat_grps *lgrps, char *page)
+{
+	struct se_lun_acl *lacl = container_of(lgrps,
+			struct se_lun_acl, ml_stat_grps);
+	struct se_node_acl *nacl = lacl->se_lun_nacl;
+	struct se_dev_entry *deve;
+	ssize_t ret;
+
+	spin_lock_irq(&nacl->device_list_lock);
+	deve = &nacl->device_list[lacl->mapped_lun];
+	if (!deve->se_lun || !deve->se_lun_acl) {
+		spin_unlock_irq(&nacl->device_list_lock);
+		return -ENODEV;
+	}
+	/* scsiAuthIntrReadMegaBytes */
+	ret = snprintf(page, PAGE_SIZE, "%u\n", (u32)(deve->read_bytes >> 20));
+	spin_unlock_irq(&nacl->device_list_lock);
+	return ret;
+}
+DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(read_mbytes);
+
+static ssize_t target_stat_scsi_auth_intr_show_attr_write_mbytes(
+	struct se_ml_stat_grps *lgrps, char *page)
+{
+	struct se_lun_acl *lacl = container_of(lgrps,
+			struct se_lun_acl, ml_stat_grps);
+	struct se_node_acl *nacl = lacl->se_lun_nacl;
+	struct se_dev_entry *deve;
+	ssize_t ret;
+
+	spin_lock_irq(&nacl->device_list_lock);
+	deve = &nacl->device_list[lacl->mapped_lun];
+	if (!deve->se_lun || !deve->se_lun_acl) {
+		spin_unlock_irq(&nacl->device_list_lock);
+		return -ENODEV;
+	}
+	/* scsiAuthIntrWrittenMegaBytes */
+	ret = snprintf(page, PAGE_SIZE, "%u\n", (u32)(deve->write_bytes >> 20));
+	spin_unlock_irq(&nacl->device_list_lock);
+	return ret;
+}
+DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(write_mbytes);
+
+static ssize_t target_stat_scsi_auth_intr_show_attr_hs_num_cmds(
+	struct se_ml_stat_grps *lgrps, char *page)
+{
+	struct se_lun_acl *lacl = container_of(lgrps,
+			struct se_lun_acl, ml_stat_grps);
+	struct se_node_acl *nacl = lacl->se_lun_nacl;
+	struct se_dev_entry *deve;
+	ssize_t ret;
+
+	spin_lock_irq(&nacl->device_list_lock);
+	deve = &nacl->device_list[lacl->mapped_lun];
+	if (!deve->se_lun || !deve->se_lun_acl) {
+		spin_unlock_irq(&nacl->device_list_lock);
+		return -ENODEV;
+	}
+	/* FIXME: scsiAuthIntrHSOutCommands */
+	ret = snprintf(page, PAGE_SIZE, "%u\n", 0);
+	spin_unlock_irq(&nacl->device_list_lock);
+	return ret;
+}
+DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(hs_num_cmds);
+
+static ssize_t target_stat_scsi_auth_intr_show_attr_creation_time(
+	struct se_ml_stat_grps *lgrps, char *page)
+{
+	struct se_lun_acl *lacl = container_of(lgrps,
+			struct se_lun_acl, ml_stat_grps);
+	struct se_node_acl *nacl = lacl->se_lun_nacl;
+	struct se_dev_entry *deve;
+	ssize_t ret;
+
+	spin_lock_irq(&nacl->device_list_lock);
+	deve = &nacl->device_list[lacl->mapped_lun];
+	if (!deve->se_lun || !deve->se_lun_acl) {
+		spin_unlock_irq(&nacl->device_list_lock);
+		return -ENODEV;
+	}
+	/* scsiAuthIntrLastCreation */
+	ret = snprintf(page, PAGE_SIZE, "%u\n", (u32)(((u32)deve->creation_time -
+				INITIAL_JIFFIES) * 100 / HZ));
+	spin_unlock_irq(&nacl->device_list_lock);
+	return ret;
+}
+DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(creation_time);
+
+static ssize_t target_stat_scsi_auth_intr_show_attr_row_status(
+	struct se_ml_stat_grps *lgrps, char *page)
+{
+	struct se_lun_acl *lacl = container_of(lgrps,
+			struct se_lun_acl, ml_stat_grps);
+	struct se_node_acl *nacl = lacl->se_lun_nacl;
+	struct se_dev_entry *deve;
+	ssize_t ret;
+
+	spin_lock_irq(&nacl->device_list_lock);
+	deve = &nacl->device_list[lacl->mapped_lun];
+	if (!deve->se_lun || !deve->se_lun_acl) {
+		spin_unlock_irq(&nacl->device_list_lock);
+		return -ENODEV;
+	}
+	/* FIXME: scsiAuthIntrRowStatus */
+	ret = snprintf(page, PAGE_SIZE, "Ready\n");
+	spin_unlock_irq(&nacl->device_list_lock);
+	return ret;
+}
+DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(row_status);
+
+CONFIGFS_EATTR_OPS(target_stat_scsi_auth_intr, se_ml_stat_grps,
+		scsi_auth_intr_group);
+
+static struct configfs_attribute *target_stat_scsi_auth_intr_attrs[] = {
+	&target_stat_scsi_auth_intr_inst.attr,
+	&target_stat_scsi_auth_intr_dev.attr,
+	&target_stat_scsi_auth_intr_port.attr,
+	&target_stat_scsi_auth_intr_indx.attr,
+	&target_stat_scsi_auth_intr_dev_or_port.attr,
+	&target_stat_scsi_auth_intr_intr_name.attr,
+	&target_stat_scsi_auth_intr_map_indx.attr,
+	&target_stat_scsi_auth_intr_att_count.attr,
+	&target_stat_scsi_auth_intr_num_cmds.attr,
+	&target_stat_scsi_auth_intr_read_mbytes.attr,
+	&target_stat_scsi_auth_intr_write_mbytes.attr,
+	&target_stat_scsi_auth_intr_hs_num_cmds.attr,
+	&target_stat_scsi_auth_intr_creation_time.attr,
+	&target_stat_scsi_auth_intr_row_status.attr,
+	NULL,
+};
+
+static struct configfs_item_operations target_stat_scsi_auth_intr_attrib_ops = {
+	.show_attribute		= target_stat_scsi_auth_intr_attr_show,
+	.store_attribute	= target_stat_scsi_auth_intr_attr_store,
+};
+
+static struct config_item_type target_stat_scsi_auth_intr_cit = {
+	.ct_item_ops		= &target_stat_scsi_auth_intr_attrib_ops,
+	.ct_attrs		= target_stat_scsi_auth_intr_attrs,
+	.ct_owner		= THIS_MODULE,
+};
+
+/*
+ * SCSI Attached Initiator Port Table
+ */
+
+CONFIGFS_EATTR_STRUCT(target_stat_scsi_att_intr_port, se_ml_stat_grps);
+#define DEV_STAT_SCSI_ATTR_INTR_PORT_ATTR(_name, _mode)			\
+static struct target_stat_scsi_att_intr_port_attribute			\
+		target_stat_scsi_att_intr_port_##_name =		\
+	__CONFIGFS_EATTR(_name, _mode,					\
+	target_stat_scsi_att_intr_port_show_attr_##_name,		\
+	target_stat_scsi_att_intr_port_store_attr_##_name);
+
+#define DEV_STAT_SCSI_ATTR_INTR_PORT_ATTR_RO(_name)			\
+static struct target_stat_scsi_att_intr_port_attribute			\
+		target_stat_scsi_att_intr_port_##_name =		\
+	__CONFIGFS_EATTR_RO(_name,					\
+	target_stat_scsi_att_intr_port_show_attr_##_name);
+
+static ssize_t target_stat_scsi_att_intr_port_show_attr_inst(
+	struct se_ml_stat_grps *lgrps, char *page)
+{
+	struct se_lun_acl *lacl = container_of(lgrps,
+			struct se_lun_acl, ml_stat_grps);
+	struct se_node_acl *nacl = lacl->se_lun_nacl;
+	struct se_dev_entry *deve;
+	struct se_portal_group *tpg;
+	ssize_t ret;
+
+	spin_lock_irq(&nacl->device_list_lock);
+	deve = &nacl->device_list[lacl->mapped_lun];
+	if (!deve->se_lun || !deve->se_lun_acl) {
+		spin_unlock_irq(&nacl->device_list_lock);
+		return -ENODEV;
+	}
+	tpg = nacl->se_tpg;
+	/* scsiInstIndex */
+	ret = snprintf(page, PAGE_SIZE, "%u\n",
+			TPG_TFO(tpg)->tpg_get_inst_index(tpg));
+	spin_unlock_irq(&nacl->device_list_lock);
+	return ret;
+}
+DEV_STAT_SCSI_ATTR_INTR_PORT_ATTR_RO(inst);
+
+static ssize_t target_stat_scsi_att_intr_port_show_attr_dev(
+	struct se_ml_stat_grps *lgrps, char *page)
+{
+	struct se_lun_acl *lacl = container_of(lgrps,
+			struct se_lun_acl, ml_stat_grps);
+	struct se_node_acl *nacl = lacl->se_lun_nacl;
+	struct se_dev_entry *deve;
+	struct se_lun *lun;
+	struct se_portal_group *tpg;
+	ssize_t ret;
+
+	spin_lock_irq(&nacl->device_list_lock);
+	deve = &nacl->device_list[lacl->mapped_lun];
+	if (!deve->se_lun || !deve->se_lun_acl) {
+		spin_unlock_irq(&nacl->device_list_lock);
+		return -ENODEV;
+	}
+	tpg = nacl->se_tpg;
+	lun = deve->se_lun;
+	/* scsiDeviceIndex */
+	ret = snprintf(page, PAGE_SIZE, "%u\n", lun->lun_se_dev->dev_index);
+	spin_unlock_irq(&nacl->device_list_lock);
+	return ret;
+}
+DEV_STAT_SCSI_ATTR_INTR_PORT_ATTR_RO(dev);
+
+static ssize_t target_stat_scsi_att_intr_port_show_attr_port(
+	struct se_ml_stat_grps *lgrps, char *page)
+{
+	struct se_lun_acl *lacl = container_of(lgrps,
+			struct se_lun_acl, ml_stat_grps);
+	struct se_node_acl *nacl = lacl->se_lun_nacl;
+	struct se_dev_entry *deve;
+	struct se_portal_group *tpg;
+	ssize_t ret;
+
+	spin_lock_irq(&nacl->device_list_lock);
+	deve = &nacl->device_list[lacl->mapped_lun];
+	if (!deve->se_lun || !deve->se_lun_acl) {
+		spin_unlock_irq(&nacl->device_list_lock);
+		return -ENODEV;
+	}
+	tpg = nacl->se_tpg;
+	/* scsiPortIndex */
+	ret = snprintf(page, PAGE_SIZE, "%u\n", TPG_TFO(tpg)->tpg_get_tag(tpg));
+	spin_unlock_irq(&nacl->device_list_lock);
+	return ret;
+}
+DEV_STAT_SCSI_ATTR_INTR_PORT_ATTR_RO(port);
+
+static ssize_t target_stat_scsi_att_intr_port_show_attr_indx(
+	struct se_ml_stat_grps *lgrps, char *page)
+{
+	struct se_lun_acl *lacl = container_of(lgrps,
+			struct se_lun_acl, ml_stat_grps);
+	struct se_node_acl *nacl = lacl->se_lun_nacl;
+	struct se_session *se_sess;
+	struct se_portal_group *tpg;
+	ssize_t ret;
+
+	spin_lock_irq(&nacl->nacl_sess_lock);
+	se_sess = nacl->nacl_sess;
+	if (!se_sess) {
+		spin_unlock_irq(&nacl->nacl_sess_lock);
+		return -ENODEV;
+	}
+
+	tpg = nacl->se_tpg;
+	/* scsiAttIntrPortIndex */
+	ret = snprintf(page, PAGE_SIZE, "%u\n",
+			TPG_TFO(tpg)->sess_get_index(se_sess));
+	spin_unlock_irq(&nacl->nacl_sess_lock);
+	return ret;
+}
+DEV_STAT_SCSI_ATTR_INTR_PORT_ATTR_RO(indx);
+
+static ssize_t target_stat_scsi_att_intr_port_show_attr_port_auth_indx(
+	struct se_ml_stat_grps *lgrps, char *page)
+{
+	struct se_lun_acl *lacl = container_of(lgrps,
+			struct se_lun_acl, ml_stat_grps);
+	struct se_node_acl *nacl = lacl->se_lun_nacl;
+	struct se_dev_entry *deve;
+	ssize_t ret;
+
+	spin_lock_irq(&nacl->device_list_lock);
+	deve = &nacl->device_list[lacl->mapped_lun];
+	if (!deve->se_lun || !deve->se_lun_acl) {
+		spin_unlock_irq(&nacl->device_list_lock);
+		return -ENODEV;
+	}
+	/* scsiAttIntrPortAuthIntrIdx */
+	ret = snprintf(page, PAGE_SIZE, "%u\n", nacl->acl_index);
+	spin_unlock_irq(&nacl->device_list_lock);
+	return ret;
+}
+DEV_STAT_SCSI_ATTR_INTR_PORT_ATTR_RO(port_auth_indx);
+
+static ssize_t target_stat_scsi_att_intr_port_show_attr_port_ident(
+	struct se_ml_stat_grps *lgrps, char *page)
+{
+	struct se_lun_acl *lacl = container_of(lgrps,
+			struct se_lun_acl, ml_stat_grps);
+	struct se_node_acl *nacl = lacl->se_lun_nacl;
+	struct se_session *se_sess;
+	struct se_portal_group *tpg;
+	ssize_t ret;
+	unsigned char buf[64];
+
+	spin_lock_irq(&nacl->nacl_sess_lock);
+	se_sess = nacl->nacl_sess;
+	if (!se_sess) {
+		spin_unlock_irq(&nacl->nacl_sess_lock);
+		return -ENODEV;
+	}
+
+	tpg = nacl->se_tpg;
+	/* scsiAttIntrPortName+scsiAttIntrPortIdentifier */
+	memset(buf, 0, 64);
+	if (TPG_TFO(tpg)->sess_get_initiator_sid != NULL)
+		TPG_TFO(tpg)->sess_get_initiator_sid(se_sess,
+				(unsigned char *)&buf[0], 64);
+
+	ret = snprintf(page, PAGE_SIZE, "%s+i+%s\n", nacl->initiatorname, buf);
+	spin_unlock_irq(&nacl->nacl_sess_lock);
+	return ret;
+}
+DEV_STAT_SCSI_ATTR_INTR_PORT_ATTR_RO(port_ident);
+
+CONFIGFS_EATTR_OPS(target_stat_scsi_att_intr_port, se_ml_stat_grps,
+		scsi_att_intr_port_group);
+
+static struct configfs_attribute *target_stat_scsi_ath_intr_port_attrs[] = {
+	&target_stat_scsi_att_intr_port_inst.attr,
+	&target_stat_scsi_att_intr_port_dev.attr,
+	&target_stat_scsi_att_intr_port_port.attr,
+	&target_stat_scsi_att_intr_port_indx.attr,
+	&target_stat_scsi_att_intr_port_port_auth_indx.attr,
+	&target_stat_scsi_att_intr_port_port_ident.attr,
+	NULL,
+};
+
+static struct configfs_item_operations target_stat_scsi_att_intr_port_attrib_ops = {
+	.show_attribute		= target_stat_scsi_att_intr_port_attr_show,
+	.store_attribute	= target_stat_scsi_att_intr_port_attr_store,
+};
+
+static struct config_item_type target_stat_scsi_att_intr_port_cit = {
+	.ct_item_ops		= &target_stat_scsi_att_intr_port_attrib_ops,
+	.ct_attrs		= target_stat_scsi_ath_intr_port_attrs,
+	.ct_owner		= THIS_MODULE,
+};
+
+/*
+ * Called from target_core_fabric_configfs.c:target_fabric_make_mappedlun() to setup
+ * the target MappedLUN statistics groups + configfs CITs located in target_core_stat.c
+ */
+void target_stat_setup_mappedlun_default_groups(struct se_lun_acl *lacl)
+{
+	struct config_group *ml_stat_grp = &ML_STAT_GRPS(lacl)->stat_group;
+
+	config_group_init_type_name(&ML_STAT_GRPS(lacl)->scsi_auth_intr_group,
+			"scsi_auth_intr", &target_stat_scsi_auth_intr_cit);
+	config_group_init_type_name(&ML_STAT_GRPS(lacl)->scsi_att_intr_port_group,
+			"scsi_att_intr_port", &target_stat_scsi_att_intr_port_cit);
+
+	ml_stat_grp->default_groups[0] = &ML_STAT_GRPS(lacl)->scsi_auth_intr_group;
+	ml_stat_grp->default_groups[1] = &ML_STAT_GRPS(lacl)->scsi_att_intr_port_group;
+	ml_stat_grp->default_groups[2] = NULL;
+}
diff --git a/drivers/target/target_core_stat.h b/drivers/target/target_core_stat.h
new file mode 100644
index 000000000000..86c252f9ea47
--- /dev/null
+++ b/drivers/target/target_core_stat.h
@@ -0,0 +1,8 @@
+#ifndef TARGET_CORE_STAT_H
+#define TARGET_CORE_STAT_H
+
+extern void target_stat_setup_dev_default_groups(struct se_subsystem_dev *);
+extern void target_stat_setup_port_default_groups(struct se_lun *);
+extern void target_stat_setup_mappedlun_default_groups(struct se_lun_acl *);
+
+#endif   /*** TARGET_CORE_STAT_H ***/
diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
index ff9ace01e27a..9583b23c9c84 100644
--- a/drivers/target/target_core_transport.c
+++ b/drivers/target/target_core_transport.c
@@ -227,8 +227,6 @@ static void transport_remove_cmd_from_queue(struct se_cmd *cmd,
 static int transport_set_sense_codes(struct se_cmd *cmd, u8 asc, u8 ascq);
 static void transport_stop_all_task_timers(struct se_cmd *cmd);
 
-int transport_emulate_control_cdb(struct se_task *task);
-
 int init_se_global(void)
 {
 	struct se_global *global;
@@ -721,7 +719,7 @@ static int transport_cmd_check_stop(
 			cmd->se_lun = NULL;
 			/*
 			 * Some fabric modules like tcm_loop can release
-			 * their internally allocated I/O refrence now and
+			 * their internally allocated I/O reference now and
 			 * struct se_cmd now.
 			 */
 			if (CMD_TFO(cmd)->check_stop_free != NULL) {
@@ -1622,7 +1620,7 @@ struct se_device *transport_add_device_to_core_hba(
 	const char *inquiry_prod,
 	const char *inquiry_rev)
 {
-	int ret = 0, force_pt;
+	int force_pt;
 	struct se_device  *dev;
 
 	dev = kzalloc(sizeof(struct se_device), GFP_KERNEL);
@@ -1739,9 +1737,8 @@ struct se_device *transport_add_device_to_core_hba(
 	}
 	scsi_dump_inquiry(dev);
 
+	return dev;
 out:
-	if (!ret)
-		return dev;
 	kthread_stop(dev->process_thread);
 
 	spin_lock(&hba->device_lock);
@@ -2032,7 +2029,7 @@ int transport_generic_handle_data(
 	 * If the received CDB has aleady been ABORTED by the generic
 	 * target engine, we now call transport_check_aborted_status()
 	 * to queue any delated TASK_ABORTED status for the received CDB to the
-	 * fabric module as we are expecting no futher incoming DATA OUT
+	 * fabric module as we are expecting no further incoming DATA OUT
 	 * sequences at this point.
 	 */
 	if (transport_check_aborted_status(cmd, 1) != 0)
@@ -2504,7 +2501,7 @@ static inline int transport_execute_task_attr(struct se_cmd *cmd)
 	if (SE_DEV(cmd)->dev_task_attr_type != SAM_TASK_ATTR_EMULATED)
 		return 1;
 	/*
-	 * Check for the existance of HEAD_OF_QUEUE, and if true return 1
+	 * Check for the existence of HEAD_OF_QUEUE, and if true return 1
 	 * to allow the passed struct se_cmd list of tasks to the front of the list.
 	 */
 	 if (cmd->sam_task_attr == TASK_ATTR_HOQ) {
@@ -2550,7 +2547,7 @@ static inline int transport_execute_task_attr(struct se_cmd *cmd)
 	if (atomic_read(&SE_DEV(cmd)->dev_ordered_sync) != 0) {
 		/*
 		 * Otherwise, add cmd w/ tasks to delayed cmd queue that
-		 * will be drained upon competion of HEAD_OF_QUEUE task.
+		 * will be drained upon completion of HEAD_OF_QUEUE task.
 		 */
 		spin_lock(&SE_DEV(cmd)->delayed_cmd_lock);
 		cmd->se_cmd_flags |= SCF_DELAYED_CMD_FROM_SAM_ATTR;
@@ -2592,7 +2589,7 @@ static int transport_execute_tasks(struct se_cmd *cmd)
 	}
 	/*
 	 * Call transport_cmd_check_stop() to see if a fabric exception
-	 * has occured that prevents execution.
+	 * has occurred that prevents execution.
 	 */
 	if (!(transport_cmd_check_stop(cmd, 0, TRANSPORT_PROCESSING))) {
 		/*
@@ -3112,7 +3109,7 @@ static int transport_generic_cmd_sequencer(
 	if (ret != 0) {
 		cmd->transport_wait_for_tasks = &transport_nop_wait_for_tasks;
 		/*
-		 * Set SCSI additional sense code (ASC) to 'LUN Not Accessable';
+		 * Set SCSI additional sense code (ASC) to 'LUN Not Accessible';
 		 * The ALUA additional sense code qualifier (ASCQ) is determined
 		 * by the ALUA primary or secondary access state..
 		 */
@@ -3870,7 +3867,7 @@ static void transport_generic_complete_ok(struct se_cmd *cmd)
 		}
 	}
 	/*
-	 * Check for a callback, used by amoungst other things
+	 * Check for a callback, used by amongst other things
 	 * XDWRITE_READ_10 emulation.
 	 */
 	if (cmd->transport_complete_callback)
@@ -4359,11 +4356,9 @@ transport_generic_get_mem(struct se_cmd *cmd, u32 length, u32 dma_size)
 			printk(KERN_ERR "Unable to allocate struct se_mem\n");
 			goto out;
 		}
-		INIT_LIST_HEAD(&se_mem->se_list);
-		se_mem->se_len = (length > dma_size) ? dma_size : length;
 
 /* #warning FIXME Allocate contigous pages for struct se_mem elements */
-		se_mem->se_page = (struct page *) alloc_pages(GFP_KERNEL, 0);
+		se_mem->se_page = alloc_pages(GFP_KERNEL, 0);
 		if (!(se_mem->se_page)) {
 			printk(KERN_ERR "alloc_pages() failed\n");
 			goto out;
@@ -4374,6 +4369,8 @@ transport_generic_get_mem(struct se_cmd *cmd, u32 length, u32 dma_size)
 			printk(KERN_ERR "kmap_atomic() failed\n");
 			goto out;
 		}
+		INIT_LIST_HEAD(&se_mem->se_list);
+		se_mem->se_len = (length > dma_size) ? dma_size : length;
 		memset(buf, 0, se_mem->se_len);
 		kunmap_atomic(buf, KM_IRQ0);
 
@@ -4392,10 +4389,13 @@ transport_generic_get_mem(struct se_cmd *cmd, u32 length, u32 dma_size)
 
 	return 0;
 out:
+	if (se_mem)
+		__free_pages(se_mem->se_page, 0);
+	kmem_cache_free(se_mem_cache, se_mem);
 	return -1;
 }
 
-extern u32 transport_calc_sg_num(
+u32 transport_calc_sg_num(
 	struct se_task *task,
 	struct se_mem *in_se_mem,
 	u32 task_offset)
@@ -5834,31 +5834,26 @@ int transport_generic_do_tmr(struct se_cmd *cmd)
 	int ret;
 
 	switch (tmr->function) {
-	case ABORT_TASK:
+	case TMR_ABORT_TASK:
 		ref_cmd = tmr->ref_cmd;
 		tmr->response = TMR_FUNCTION_REJECTED;
 		break;
-	case ABORT_TASK_SET:
-	case CLEAR_ACA:
-	case CLEAR_TASK_SET:
+	case TMR_ABORT_TASK_SET:
+	case TMR_CLEAR_ACA:
+	case TMR_CLEAR_TASK_SET:
 		tmr->response = TMR_TASK_MGMT_FUNCTION_NOT_SUPPORTED;
 		break;
-	case LUN_RESET:
+	case TMR_LUN_RESET:
 		ret = core_tmr_lun_reset(dev, tmr, NULL, NULL);
 		tmr->response = (!ret) ? TMR_FUNCTION_COMPLETE :
 					 TMR_FUNCTION_REJECTED;
 		break;
-#if 0
-	case TARGET_WARM_RESET:
-		transport_generic_host_reset(dev->se_hba);
+	case TMR_TARGET_WARM_RESET:
 		tmr->response = TMR_FUNCTION_REJECTED;
 		break;
-	case TARGET_COLD_RESET:
-		transport_generic_host_reset(dev->se_hba);
-		transport_generic_cold_reset(dev->se_hba);
+	case TMR_TARGET_COLD_RESET:
 		tmr->response = TMR_FUNCTION_REJECTED;
 		break;
-#endif
 	default:
 		printk(KERN_ERR "Uknown TMR function: 0x%02x.\n",
 				tmr->function);
diff --git a/drivers/target/target_core_ua.c b/drivers/target/target_core_ua.c
index a2ef346087e8..df355176a377 100644
--- a/drivers/target/target_core_ua.c
+++ b/drivers/target/target_core_ua.c
@@ -247,7 +247,7 @@ void core_scsi3_ua_for_check_condition(
 		}
 		/*
 		 * Otherwise for the default 00b, release the UNIT ATTENTION
-		 * condition.  Return the ASC/ASCQ of the higest priority UA
+		 * condition.  Return the ASC/ASCQ of the highest priority UA
 		 * (head of the list) in the outgoing CHECK_CONDITION + sense.
 		 */
 		if (head) {
@@ -304,7 +304,7 @@ int core_scsi3_ua_clear_for_request_sense(
 	 * matching struct se_lun.
 	 *
 	 * Once the returning ASC/ASCQ values are set, we go ahead and
-	 * release all of the Unit Attention conditions for the assoicated
+	 * release all of the Unit Attention conditions for the associated
 	 * struct se_lun.
 	 */
 	spin_lock(&deve->ua_lock);
diff --git a/drivers/telephony/ixj.c b/drivers/telephony/ixj.c
index b00101972f20..d5f923bcdffe 100644
--- a/drivers/telephony/ixj.c
+++ b/drivers/telephony/ixj.c
@@ -169,7 +169,7 @@
  * Added support for Linux 2.4.x kernels.
  *
  * Revision 3.77  2001/01/09 04:00:52  eokerson
- * Linetest will now test the line, even if it has previously succeded.
+ * Linetest will now test the line, even if it has previously succeeded.
  *
  * Revision 3.76  2001/01/08 19:27:00  eokerson
  * Fixed problem with standard cable on Internet PhoneCARD.
@@ -352,7 +352,7 @@ static void ixj_fsk_alloc(IXJ *j)
 		} else {
 			j->fsksize = 8000;
 			if(ixjdebug & 0x0200) {
-				printk("IXJ phone%d - allocate succeded\n", j->board);
+				printk("IXJ phone%d - allocate succeeded\n", j->board);
 			}
 		}
 	}
@@ -487,7 +487,7 @@ DSPbase +
 8-9		Hardware Status Register			Read Only
 A-B		Hardware Control Register			Read Write
 C-D Host Transmit (Write) Data Buffer Access Port (buffer input)Write Only
-E-F Host Recieve (Read) Data Buffer Access Port (buffer input)	Read Only
+E-F Host Receive (Read) Data Buffer Access Port (buffer input)	Read Only
 ************************************************************************/
 
 static inline void ixj_read_HSR(IXJ *j)
@@ -4195,7 +4195,7 @@ static void ixj_aec_start(IXJ *j, int level)
 			ixj_WriteDSPCommand(0xE338, j);	/* Set Echo Suppresser Attenuation to 0dB */
 
 			/* Now we can set the AGC initial parameters and turn it on */
-			ixj_WriteDSPCommand(0xCF90, j);	/* Set AGC Minumum gain */
+			ixj_WriteDSPCommand(0xCF90, j);	/* Set AGC Minimum gain */
 			ixj_WriteDSPCommand(0x0020, j);	/* to 0.125 (-18dB) */
 	
 			ixj_WriteDSPCommand(0xCF91, j);	/* Set AGC Maximum gain */
diff --git a/drivers/telephony/ixj.h b/drivers/telephony/ixj.h
index 4c32a43b7914..2c841134f61c 100644
--- a/drivers/telephony/ixj.h
+++ b/drivers/telephony/ixj.h
@@ -1149,7 +1149,7 @@ typedef struct {
 	unsigned int firstring:1; /* First ring cadence is complete */
 	unsigned int pstncheck:1;	/* Currently checking the PSTN Line */
 	unsigned int pstn_rmr:1;
-	unsigned int x:3;	/* unsed bits */
+	unsigned int x:3;	/* unused bits */
 
 } IXJ_FLAGS;
 
diff --git a/drivers/tty/hvc/hvc_iucv.c b/drivers/tty/hvc/hvc_iucv.c
index c3425bb3a1f6..b6f7d52f7c35 100644
--- a/drivers/tty/hvc/hvc_iucv.c
+++ b/drivers/tty/hvc/hvc_iucv.c
@@ -255,7 +255,7 @@ static int hvc_iucv_write(struct hvc_iucv_private *priv,
 		default:
 			written = -EIO;
 		}
-		/* remove buffer if an error has occured or received data
+		/* remove buffer if an error has occurred or received data
 		 * is not correct */
 		if (rc || (rb->mbuf->version != MSG_VERSION) ||
 			  (rb->msg.length    != MSG_SIZE(rb->mbuf->datalen)))
@@ -620,7 +620,7 @@ static void hvc_iucv_hangup(struct hvc_iucv_private *priv)
  *		the index of an struct hvc_iucv_private instance.
  *
  * This routine notifies the HVC back-end that a tty hangup (carrier loss,
- * virtual or otherwise) has occured.
+ * virtual or otherwise) has occurred.
  * The z/VM IUCV HVC device driver ignores virtual hangups (vhangup())
  * to keep an existing IUCV communication path established.
  * (Background: vhangup() is called from user space (by getty or login) to
diff --git a/drivers/tty/hvc/hvc_vio.c b/drivers/tty/hvc/hvc_vio.c
index 5e2f52b33327..e6eea1485244 100644
--- a/drivers/tty/hvc/hvc_vio.c
+++ b/drivers/tty/hvc/hvc_vio.c
@@ -1,7 +1,7 @@
 /*
  * vio driver interface to hvc_console.c
  *
- * This code was moved here to allow the remaing code to be reused as a
+ * This code was moved here to allow the remaining code to be reused as a
  * generic polling mode with semi-reliable transport driver core to the
  * console and tty subsystems.
  *
diff --git a/drivers/tty/hvc/hvc_xen.c b/drivers/tty/hvc/hvc_xen.c
index c35f1a73bc8b..52fdf60bdbe2 100644
--- a/drivers/tty/hvc/hvc_xen.c
+++ b/drivers/tty/hvc/hvc_xen.c
@@ -178,7 +178,7 @@ static int __init xen_hvc_init(void)
 	if (xencons_irq < 0)
 		xencons_irq = 0; /* NO_IRQ */
 	else
-		set_irq_noprobe(xencons_irq);
+		irq_set_noprobe(xencons_irq);
 
 	hp = hvc_alloc(HVC_COOKIE, xencons_irq, ops, 256);
 	if (IS_ERR(hp))
diff --git a/drivers/tty/hvc/hvcs.c b/drivers/tty/hvc/hvcs.c
index bef238f9ffd7..4c8b66546930 100644
--- a/drivers/tty/hvc/hvcs.c
+++ b/drivers/tty/hvc/hvcs.c
@@ -118,7 +118,7 @@
  * arch/powerepc/include/asm/hvcserver.h
  *
  * 1.3.2 -> 1.3.3 Replaced yield() in hvcs_close() with tty_wait_until_sent() to
- * prevent possible lockup with realtime scheduling as similarily pointed out by
+ * prevent possible lockup with realtime scheduling as similarly pointed out by
  * akpm in hvc_console.  Changed resulted in the removal of hvcs_final_close()
  * to reorder cleanup operations and prevent discarding of pending data during
  * an hvcs_close().  Removed spinlock protection of hvcs_struct data members in
@@ -581,7 +581,7 @@ static void hvcs_try_write(struct hvcs_struct *hvcsd)
 			/*
 			 * We are still obligated to deliver the data to the
 			 * hypervisor even if the tty has been closed because
-			 * we commited to delivering it.  But don't try to wake
+			 * we committed to delivering it.  But don't try to wake
 			 * a non-existent tty.
 			 */
 			if (tty) {
@@ -1349,7 +1349,7 @@ static int hvcs_write(struct tty_struct *tty,
 	spin_lock_irqsave(&hvcsd->lock, flags);
 
 	/*
-	 * Somehow an open succedded but the device was removed or the
+	 * Somehow an open succeeded but the device was removed or the
 	 * connection terminated between the vty-server and partner vty during
 	 * the middle of a write operation?  This is a crummy place to do this
 	 * but we want to keep it all in the spinlock.
@@ -1420,7 +1420,7 @@ static int hvcs_write(struct tty_struct *tty,
 }
 
 /*
- * This is really asking how much can we guarentee that we can send or that we
+ * This is really asking how much can we guarantee that we can send or that we
  * absolutely WILL BUFFER if we can't send it.  This driver MUST honor the
  * return value, hence the reason for hvcs_struct buffering.
  */
diff --git a/drivers/tty/mxser.h b/drivers/tty/mxser.h
index 41878a69203d..0bf794313ffd 100644
--- a/drivers/tty/mxser.h
+++ b/drivers/tty/mxser.h
@@ -113,7 +113,7 @@
 #define MOXA_MUST_IIR_RTO		0x0C
 #define MOXA_MUST_IIR_LSR		0x06
 
-/* recieved Xon/Xoff or specical interrupt pending */
+/* received Xon/Xoff or specical interrupt pending */
 #define MOXA_MUST_IIR_XSC		0x10
 
 /* RTS/CTS change state interrupt pending */
diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c
index 176f63256b37..47f8cdb207f1 100644
--- a/drivers/tty/n_gsm.c
+++ b/drivers/tty/n_gsm.c
@@ -74,7 +74,7 @@ module_param(debug, int, 0600);
 #endif
 
 /*
- * Semi-arbitary buffer size limits. 0710 is normally run with 32-64 byte
+ * Semi-arbitrary buffer size limits. 0710 is normally run with 32-64 byte
  * limits so this is plenty
  */
 #define MAX_MRU 512
@@ -82,7 +82,7 @@ module_param(debug, int, 0600);
 
 /*
  *	Each block of data we have queued to go out is in the form of
- *	a gsm_msg which holds everything we need in a link layer independant
+ *	a gsm_msg which holds everything we need in a link layer independent
  *	format
  */
 
@@ -1193,8 +1193,8 @@ static void gsm_control_message(struct gsm_mux *gsm, unsigned int command,
 		break;
 		/* Optional unsupported commands */
 	case CMD_PN:	/* Parameter negotiation */
-	case CMD_RPN:	/* Remote port negotation */
-	case CMD_SNC:	/* Service negotation command */
+	case CMD_RPN:	/* Remote port negotiation */
+	case CMD_SNC:	/* Service negotiation command */
 	default:
 		/* Reply to bad commands with an NSC */
 		buf[0] = command;
@@ -2026,7 +2026,7 @@ EXPORT_SYMBOL_GPL(gsm_activate_mux);
  *	@mux: mux to free
  *
  *	Dispose of allocated resources for a dead mux. No refcounting
- *	at present so the mux must be truely dead.
+ *	at present so the mux must be truly dead.
  */
 void gsm_free_mux(struct gsm_mux *gsm)
 {
diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
index 428f4fe0b5f7..0ad32888091c 100644
--- a/drivers/tty/n_tty.c
+++ b/drivers/tty/n_tty.c
@@ -95,6 +95,7 @@ static void n_tty_set_room(struct tty_struct *tty)
 {
 	/* tty->read_cnt is not read locked ? */
 	int	left = N_TTY_BUF_SIZE - tty->read_cnt - 1;
+	int old_left;
 
 	/*
 	 * If we are doing input canonicalization, and there are no
@@ -104,7 +105,12 @@ static void n_tty_set_room(struct tty_struct *tty)
 	 */
 	if (left <= 0)
 		left = tty->icanon && !tty->canon_data;
+	old_left = tty->receive_room;
 	tty->receive_room = left;
+
+	/* Did this open up the receive buffer? We may need to flip */
+	if (left && !old_left)
+		schedule_work(&tty->buf.work);
 }
 
 static void put_tty_queue_nolock(unsigned char c, struct tty_struct *tty)
diff --git a/drivers/tty/nozomi.c b/drivers/tty/nozomi.c
index f4f11164efe5..fd0a98524d51 100644
--- a/drivers/tty/nozomi.c
+++ b/drivers/tty/nozomi.c
@@ -1673,7 +1673,7 @@ static void ntty_hangup(struct tty_struct *tty)
 
 /*
  * called when the userspace process writes to the tty (/dev/noz*).
- * Data is inserted into a fifo, which is then read and transfered to the modem.
+ * Data is inserted into a fifo, which is then read and transferred to the modem.
  */
 static int ntty_write(struct tty_struct *tty, const unsigned char *buffer,
 		      int count)
diff --git a/drivers/tty/rocket.c b/drivers/tty/rocket.c
index 3780da8ad12d..036feeb5e3f6 100644
--- a/drivers/tty/rocket.c
+++ b/drivers/tty/rocket.c
@@ -2060,7 +2060,7 @@ static __init int register_PCI(int i, struct pci_dev *dev)
 			sClockPrescale = 0x19;
 			rp_baud_base[i] = 230400;
 		} else {
-			/* mod 4 (devide by 5) prescale */
+			/* mod 4 (divide by 5) prescale */
 			sClockPrescale = 0x14;
 			rp_baud_base[i] = 460800;
 		}
@@ -2183,7 +2183,7 @@ static int __init init_ISA(int i)
 		sClockPrescale = 0x19;	/* mod 9 (divide by 10) prescale */
 		rp_baud_base[i] = 230400;
 	} else {
-		sClockPrescale = 0x14;	/* mod 4 (devide by 5) prescale */
+		sClockPrescale = 0x14;	/* mod 4 (divide by 5) prescale */
 		rp_baud_base[i] = 460800;
 	}
 
diff --git a/drivers/tty/serial/8250.c b/drivers/tty/serial/8250.c
index b3b881bc4712..6611535f4440 100644
--- a/drivers/tty/serial/8250.c
+++ b/drivers/tty/serial/8250.c
@@ -1629,7 +1629,7 @@ static irqreturn_t serial8250_interrupt(int irq, void *dev_id)
 			    up->port.iotype == UPIO_DWAPB32) &&
 			  (iir & UART_IIR_BUSY) == UART_IIR_BUSY) {
 			/* The DesignWare APB UART has an Busy Detect (0x07)
-			 * interrupt meaning an LCR write attempt occured while the
+			 * interrupt meaning an LCR write attempt occurred while the
 			 * UART was busy. The interrupt must be cleared by reading
 			 * the UART status register (USR) and the LCR re-written. */
 			unsigned int status;
diff --git a/drivers/tty/serial/8250_pci.c b/drivers/tty/serial/8250_pci.c
index 8b8930f700b5..738cec9807d3 100644
--- a/drivers/tty/serial/8250_pci.c
+++ b/drivers/tty/serial/8250_pci.c
@@ -433,7 +433,7 @@ static void __devexit sbs_exit(struct pci_dev *dev)
 /*
  * SIIG serial cards have an PCI interface chip which also controls
  * the UART clocking frequency. Each UART can be clocked independently
- * (except cards equiped with 4 UARTs) and initial clocking settings
+ * (except cards equipped with 4 UARTs) and initial clocking settings
  * are stored in the EEPROM chip. It can cause problems because this
  * version of serial driver doesn't support differently clocked UART's
  * on single PCI card. To prevent this, initialization functions set
diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig
index e1aee37270f5..80484af781e1 100644
--- a/drivers/tty/serial/Kconfig
+++ b/drivers/tty/serial/Kconfig
@@ -1506,7 +1506,7 @@ config SERIAL_BCM63XX_CONSOLE
 
 config SERIAL_GRLIB_GAISLER_APBUART
 	tristate "GRLIB APBUART serial support"
-	depends on OF
+	depends on OF && SPARC
 	select SERIAL_CORE
 	---help---
 	Add support for the GRLIB APBUART serial port.
diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c
index 57731e870085..6deee4e546be 100644
--- a/drivers/tty/serial/amba-pl011.c
+++ b/drivers/tty/serial/amba-pl011.c
@@ -520,7 +520,7 @@ static bool pl011_dma_tx_irq(struct uart_amba_port *uap)
 
 	/*
 	 * We don't have a TX buffer queued, so try to queue one.
-	 * If we succesfully queued a buffer, mask the TX IRQ.
+	 * If we successfully queued a buffer, mask the TX IRQ.
 	 */
 	if (pl011_dma_tx_refill(uap) > 0) {
 		uap->im &= ~UART011_TXIM;
diff --git a/drivers/tty/serial/apbuart.c b/drivers/tty/serial/apbuart.c
index 1ab999b04ef3..19a943693e4c 100644
--- a/drivers/tty/serial/apbuart.c
+++ b/drivers/tty/serial/apbuart.c
@@ -555,10 +555,9 @@ static struct uart_driver grlib_apbuart_driver = {
 
 static int __devinit apbuart_probe(struct platform_device *op)
 {
-	int i = -1;
+	int i;
 	struct uart_port *port = NULL;
 
-	i = 0;
 	for (i = 0; i < grlib_apbuart_port_nr; i++) {
 		if (op->dev.of_node == grlib_apbuart_nodes[i])
 			break;
@@ -566,6 +565,7 @@ static int __devinit apbuart_probe(struct platform_device *op)
 
 	port = &grlib_apbuart_ports[i];
 	port->dev = &op->dev;
+	port->irq = op->archdata.irqs[0];
 
 	uart_add_one_port(&grlib_apbuart_driver, (struct uart_port *) port);
 
@@ -598,24 +598,12 @@ static struct platform_driver grlib_apbuart_of_driver = {
 
 static int grlib_apbuart_configure(void)
 {
-	struct device_node *np, *rp;
-	const u32 *prop;
-	int freq_khz, line = 0;
-
-	/* Get bus frequency */
-	rp = of_find_node_by_path("/");
-	if (!rp)
-		return -ENODEV;
-	rp = of_get_next_child(rp, NULL);
-	if (!rp)
-		return -ENODEV;
-	prop = of_get_property(rp, "clock-frequency", NULL);
-	if (!prop)
-		return -ENODEV;
-	freq_khz = *prop;
+	struct device_node *np;
+	int line = 0;
 
 	for_each_matching_node(np, apbuart_match) {
-		const int *irqs, *ampopts;
+		const int *ampopts;
+		const u32 *freq_hz;
 		const struct amba_prom_registers *regs;
 		struct uart_port *port;
 		unsigned long addr;
@@ -623,11 +611,11 @@ static int grlib_apbuart_configure(void)
 		ampopts = of_get_property(np, "ampopts", NULL);
 		if (ampopts && (*ampopts == 0))
 			continue; /* Ignore if used by another OS instance */
-
-		irqs = of_get_property(np, "interrupts", NULL);
 		regs = of_get_property(np, "reg", NULL);
+		/* Frequency of APB Bus is frequency of UART */
+		freq_hz = of_get_property(np, "freq", NULL);
 
-		if (!irqs || !regs)
+		if (!regs || !freq_hz || (*freq_hz == 0))
 			continue;
 
 		grlib_apbuart_nodes[line] = np;
@@ -638,12 +626,12 @@ static int grlib_apbuart_configure(void)
 
 		port->mapbase = addr;
 		port->membase = ioremap(addr, sizeof(struct grlib_apbuart_regs_map));
-		port->irq = *irqs;
+		port->irq = 0;
 		port->iotype = UPIO_MEM;
 		port->ops = &grlib_apbuart_ops;
 		port->flags = UPF_BOOT_AUTOCONF;
 		port->line = line;
-		port->uartclk = freq_khz * 1000;
+		port->uartclk = *freq_hz;
 		port->fifosize = apbuart_scan_fifo_size((struct uart_port *) port, line);
 		line++;
 
diff --git a/drivers/tty/serial/icom.c b/drivers/tty/serial/icom.c
index 53a468227056..8a869e58f6d7 100644
--- a/drivers/tty/serial/icom.c
+++ b/drivers/tty/serial/icom.c
@@ -1248,7 +1248,7 @@ static void icom_set_termios(struct uart_port *port,
 		}
 	}
 
-	/* Enable Transmitter and Reciever */
+	/* Enable Transmitter and Receiver */
 	offset =
 	    (unsigned long) &ICOM_PORT->statStg->rcv[0] -
 	    (unsigned long) ICOM_PORT->statStg;
diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
index dfcf4b1878aa..cb36b0d4ef3c 100644
--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c
@@ -78,7 +78,7 @@
 #define  URXD_FRMERR     (1<<12)
 #define  URXD_BRK        (1<<11)
 #define  URXD_PRERR      (1<<10)
-#define  UCR1_ADEN       (1<<15) /* Auto dectect interrupt */
+#define  UCR1_ADEN       (1<<15) /* Auto detect interrupt */
 #define  UCR1_ADBR       (1<<14) /* Auto detect baud rate */
 #define  UCR1_TRDYEN     (1<<13) /* Transmitter ready interrupt enable */
 #define  UCR1_IDEN       (1<<12) /* Idle condition interrupt */
diff --git a/drivers/tty/serial/ip22zilog.c b/drivers/tty/serial/ip22zilog.c
index ebff4a1d4bcc..7b1cda59ebb5 100644
--- a/drivers/tty/serial/ip22zilog.c
+++ b/drivers/tty/serial/ip22zilog.c
@@ -375,7 +375,7 @@ static void ip22zilog_transmit_chars(struct uart_ip22zilog_port *up,
 		 * be nice to transmit console writes just like we normally would for
 		 * a TTY line. (ie. buffered and TX interrupt driven).  That is not
 		 * easy because console writes cannot sleep.  One solution might be
-		 * to poll on enough port->xmit space becomming free.  -DaveM
+		 * to poll on enough port->xmit space becoming free.  -DaveM
 		 */
 		if (!(status & Tx_BUF_EMP))
 			return;
diff --git a/drivers/tty/serial/jsm/jsm.h b/drivers/tty/serial/jsm/jsm.h
index 38a509c684cd..b704c8ce0d71 100644
--- a/drivers/tty/serial/jsm/jsm.h
+++ b/drivers/tty/serial/jsm/jsm.h
@@ -273,7 +273,7 @@ struct neo_uart_struct {
 	 u8 fctr;		/* WR	FCTR - Feature Control Reg */
 	 u8 efr;		/* WR	EFR - Enhanced Function Reg */
 	 u8 tfifo;		/* WR	TXCNT/TXTRG - Transmit FIFO Reg */
-	 u8 rfifo;		/* WR	RXCNT/RXTRG - Recieve FIFO Reg */
+	 u8 rfifo;		/* WR	RXCNT/RXTRG - Receive FIFO Reg */
 	 u8 xoffchar1;	/* WR	XOFF 1 - XOff Character 1 Reg */
 	 u8 xoffchar2;	/* WR	XOFF 2 - XOff Character 2 Reg */
 	 u8 xonchar1;	/* WR	XON 1 - Xon Character 1 Reg */
diff --git a/drivers/tty/serial/jsm/jsm_neo.c b/drivers/tty/serial/jsm/jsm_neo.c
index 7960d9633c15..4538c3e3646e 100644
--- a/drivers/tty/serial/jsm/jsm_neo.c
+++ b/drivers/tty/serial/jsm/jsm_neo.c
@@ -381,7 +381,7 @@ static void neo_copy_data_from_uart_to_queue(struct jsm_channel *ch)
 		/* Copy data from uart to the queue */
 		memcpy_fromio(ch->ch_rqueue + head, &ch->ch_neo_uart->txrxburst, n);
 		/*
-		 * Since RX_FIFO_DATA_ERROR was 0, we are guarenteed
+		 * Since RX_FIFO_DATA_ERROR was 0, we are guaranteed
 		 * that all the data currently in the FIFO is free of
 		 * breaks and parity/frame/orun errors.
 		 */
@@ -1210,7 +1210,7 @@ static irqreturn_t neo_intr(int irq, void *voidbrd)
 			 * Why would I check EVERY possibility of type of
 			 * interrupt, when we know its TXRDY???
 			 * Becuz for some reason, even tho we got triggered for TXRDY,
-			 * it seems to be occassionally wrong. Instead of TX, which
+			 * it seems to be occasionally wrong. Instead of TX, which
 			 * it should be, I was getting things like RXDY too. Weird.
 			 */
 			neo_parse_isr(brd, port);
diff --git a/drivers/tty/serial/kgdboc.c b/drivers/tty/serial/kgdboc.c
index 25a8bc565f40..87e7e6c876d4 100644
--- a/drivers/tty/serial/kgdboc.c
+++ b/drivers/tty/serial/kgdboc.c
@@ -131,7 +131,7 @@ static void kgdboc_unregister_kbd(void)
 
 static int kgdboc_option_setup(char *opt)
 {
-	if (strlen(opt) > MAX_CONFIG_LEN) {
+	if (strlen(opt) >= MAX_CONFIG_LEN) {
 		printk(KERN_ERR "kgdboc: config string too long\n");
 		return -ENOSPC;
 	}
diff --git a/drivers/tty/serial/max3107.h b/drivers/tty/serial/max3107.h
index 7ab632392502..8415fc723b96 100644
--- a/drivers/tty/serial/max3107.h
+++ b/drivers/tty/serial/max3107.h
@@ -369,7 +369,7 @@ struct max3107_port {
 	struct spi_device *spi;
 
 #if defined(CONFIG_GPIOLIB)
-	/* GPIO chip stucture */
+	/* GPIO chip structure */
 	struct gpio_chip chip;
 #endif
 
diff --git a/drivers/tty/serial/mrst_max3110.c b/drivers/tty/serial/mrst_max3110.c
index 37e13c3d91d9..2f548af4e98a 100644
--- a/drivers/tty/serial/mrst_max3110.c
+++ b/drivers/tty/serial/mrst_max3110.c
@@ -23,7 +23,7 @@
  *    1 word. If SPI master controller doesn't support sclk frequency change,
  *    then the char need be sent out one by one with some delay
  *
- * 2. Currently only RX availabe interrrupt is used, no need for waiting TXE
+ * 2. Currently only RX available interrrupt is used, no need for waiting TXE
  *    interrupt for a low speed UART device
  */
 
diff --git a/drivers/tty/serial/mrst_max3110.h b/drivers/tty/serial/mrst_max3110.h
index d1ef43af397c..c37ea48c825a 100644
--- a/drivers/tty/serial/mrst_max3110.h
+++ b/drivers/tty/serial/mrst_max3110.h
@@ -21,7 +21,7 @@
 
 #define WC_IRQ_MASK		(0xF << 8)
 #define WC_TXE_IRQ_ENABLE	(1 << 11)	/* TX empty irq */
-#define WC_RXA_IRQ_ENABLE	(1 << 10)	/* RX availabe irq */
+#define WC_RXA_IRQ_ENABLE	(1 << 10)	/* RX available irq */
 #define WC_PAR_HIGH_IRQ_ENABLE	(1 << 9)
 #define WC_REC_ACT_IRQ_ENABLE	(1 << 8)
 
diff --git a/drivers/tty/serial/msm_serial_hs.c b/drivers/tty/serial/msm_serial_hs.c
index 2e7fc9cee9cc..624701f8138a 100644
--- a/drivers/tty/serial/msm_serial_hs.c
+++ b/drivers/tty/serial/msm_serial_hs.c
@@ -495,7 +495,7 @@ static void msm_hs_pm(struct uart_port *uport, unsigned int state,
  *
  * Interrupts should be disabled before we are called, as
  * we modify Set Baud rate
- * Set receive stale interrupt level, dependant on Bit Rate
+ * Set receive stale interrupt level, dependent on Bit Rate
  * Goal is to have around 8 ms before indicate stale.
  * roundup (((Bit Rate * .008) / 10) + 1
  */
@@ -1350,7 +1350,7 @@ static irqreturn_t msm_hs_rx_wakeup_isr(int irq, void *dev)
 
 	spin_lock_irqsave(&uport->lock, flags);
 	if (msm_uport->clk_state == MSM_HS_CLK_OFF) {
-		/* ignore the first irq - it is a pending irq that occured
+		/* ignore the first irq - it is a pending irq that occurred
 		 * before enable_irq() */
 		if (msm_uport->rx_wakeup.ignore)
 			msm_uport->rx_wakeup.ignore = 0;
@@ -1644,7 +1644,7 @@ static int __devinit msm_hs_probe(struct platform_device *pdev)
 	if (unlikely(uport->irq < 0))
 		return -ENXIO;
 
-	if (unlikely(set_irq_wake(uport->irq, 1)))
+	if (unlikely(irq_set_irq_wake(uport->irq, 1)))
 		return -ENXIO;
 
 	if (pdata == NULL || pdata->rx_wakeup_irq < 0)
@@ -1658,7 +1658,7 @@ static int __devinit msm_hs_probe(struct platform_device *pdev)
 		if (unlikely(msm_uport->rx_wakeup.irq < 0))
 			return -ENXIO;
 
-		if (unlikely(set_irq_wake(msm_uport->rx_wakeup.irq, 1)))
+		if (unlikely(irq_set_irq_wake(msm_uport->rx_wakeup.irq, 1)))
 			return -ENXIO;
 	}
 
diff --git a/drivers/tty/serial/omap-serial.c b/drivers/tty/serial/omap-serial.c
index 763537943a53..47cadf474149 100644
--- a/drivers/tty/serial/omap-serial.c
+++ b/drivers/tty/serial/omap-serial.c
@@ -13,7 +13,7 @@
  * the Free Software Foundation; either version 2 of the License, or
  * (at your option) any later version.
  *
- * Note: This driver is made seperate from 8250 driver as we cannot
+ * Note: This driver is made separate from 8250 driver as we cannot
  * over load 8250 driver with omap platform specific configuration for
  * features like DMA, it makes easier to implement features like DMA and
  * hardware flow control and software flow control configuration with
diff --git a/drivers/tty/serial/pmac_zilog.c b/drivers/tty/serial/pmac_zilog.c
index 5b9cde79e4ea..e1c8d4f1ce58 100644
--- a/drivers/tty/serial/pmac_zilog.c
+++ b/drivers/tty/serial/pmac_zilog.c
@@ -330,7 +330,7 @@ static struct tty_struct *pmz_receive_chars(struct uart_pmac_port *uap)
 		 * When that happens, I disable the receive side of the driver.
 		 * Note that what I've been experiencing is a real irq loop where
 		 * I'm getting flooded regardless of the actual port speed.
-		 * Something stange is going on with the HW
+		 * Something strange is going on with the HW
 		 */
 		if ((++loops) > 1000)
 			goto flood;
@@ -396,7 +396,7 @@ static void pmz_transmit_chars(struct uart_pmac_port *uap)
 		 * be nice to transmit console writes just like we normally would for
 		 * a TTY line. (ie. buffered and TX interrupt driven).  That is not
 		 * easy because console writes cannot sleep.  One solution might be
-		 * to poll on enough port->xmit space becomming free.  -DaveM
+		 * to poll on enough port->xmit space becoming free.  -DaveM
 		 */
 		if (!(status & Tx_BUF_EMP))
 			return;
@@ -809,7 +809,7 @@ static int pmz_set_scc_power(struct uart_pmac_port *uap, int state)
 #endif /* !CONFIG_PPC_PMAC */
 
 /*
- * FixZeroBug....Works around a bug in the SCC receving channel.
+ * FixZeroBug....Works around a bug in the SCC receiving channel.
  * Inspired from Darwin code, 15 Sept. 2000  -DanM
  *
  * The following sequence prevents a problem that is seen with O'Hare ASICs
diff --git a/drivers/tty/serial/samsung.c b/drivers/tty/serial/samsung.c
index 2335edafe903..9e2fa8d784e2 100644
--- a/drivers/tty/serial/samsung.c
+++ b/drivers/tty/serial/samsung.c
@@ -64,7 +64,7 @@
 #define tx_enabled(port) ((port)->unused[0])
 #define rx_enabled(port) ((port)->unused[1])
 
-/* flag to ignore all characters comming in */
+/* flag to ignore all characters coming in */
 #define RXSTAT_DUMMY_READ (0x10000000)
 
 static inline struct s3c24xx_uart_port *to_ourport(struct uart_port *port)
@@ -291,7 +291,7 @@ static irqreturn_t s3c24xx_serial_tx_chars(int irq, void *id)
 		goto out;
 	}
 
-	/* if there isnt anything more to transmit, or the uart is now
+	/* if there isn't anything more to transmit, or the uart is now
 	 * stopped, disable the uart and exit
 	*/
 
diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
index eb7958c675a8..920a6f929c8b 100644
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -812,7 +812,7 @@ static irqreturn_t sci_mpxed_interrupt(int irq, void *ptr)
 }
 
 /*
- * Here we define a transistion notifier so that we can update all of our
+ * Here we define a transition notifier so that we can update all of our
  * ports' baud rate when the peripheral clock changes.
  */
 static int sci_notifier(struct notifier_block *self,
@@ -1836,6 +1836,12 @@ static int __devinit serial_console_setup(struct console *co, char *options)
 	sci_port = &sci_ports[co->index];
 	port = &sci_port->port;
 
+	/*
+	 * Refuse to handle uninitialized ports.
+	 */
+	if (!port->ops)
+		return -ENODEV;
+
 	ret = sci_remap_port(port);
 	if (unlikely(ret != 0))
 		return ret;
@@ -1866,13 +1872,6 @@ static struct console serial_console = {
 	.data		= &sci_uart_driver,
 };
 
-static int __init sci_console_init(void)
-{
-	register_console(&serial_console);
-	return 0;
-}
-console_initcall(sci_console_init);
-
 static struct console early_serial_console = {
 	.name           = "early_ttySC",
 	.write          = serial_console_write,
@@ -1901,18 +1900,18 @@ static int __devinit sci_probe_earlyprintk(struct platform_device *pdev)
 	register_console(&early_serial_console);
 	return 0;
 }
+
+#define SCI_CONSOLE	(&serial_console)
+
 #else
 static inline int __devinit sci_probe_earlyprintk(struct platform_device *pdev)
 {
 	return -EINVAL;
 }
-#endif /* CONFIG_SERIAL_SH_SCI_CONSOLE */
 
-#if defined(CONFIG_SERIAL_SH_SCI_CONSOLE)
-#define SCI_CONSOLE	(&serial_console)
-#else
-#define SCI_CONSOLE	0
-#endif
+#define SCI_CONSOLE	NULL
+
+#endif /* CONFIG_SERIAL_SH_SCI_CONSOLE */
 
 static char banner[] __initdata =
 	KERN_INFO "SuperH SCI(F) driver initialized\n";
diff --git a/drivers/tty/serial/sn_console.c b/drivers/tty/serial/sn_console.c
index cff9a306660f..377ae74e7154 100644
--- a/drivers/tty/serial/sn_console.c
+++ b/drivers/tty/serial/sn_console.c
@@ -146,7 +146,7 @@ static struct sn_sal_ops intr_ops = {
 };
 
 /* the console does output in two distinctly different ways:
- * synchronous (raw) and asynchronous (buffered).  initally, early_printk
+ * synchronous (raw) and asynchronous (buffered).  initially, early_printk
  * does synchronous output.  any data written goes directly to the SAL
  * to be output (incidentally, it is internally buffered by the SAL)
  * after interrupts and timers are initialized and available for use,
@@ -481,7 +481,7 @@ sn_receive_chars(struct sn_cons_port *port, unsigned long flags)
 	while (port->sc_ops->sal_input_pending()) {
 		ch = port->sc_ops->sal_getc();
 		if (ch < 0) {
-			printk(KERN_ERR "sn_console: An error occured while "
+			printk(KERN_ERR "sn_console: An error occurred while "
 			       "obtaining data from the console (0x%0x)\n", ch);
 			break;
 		}
diff --git a/drivers/tty/serial/sunzilog.c b/drivers/tty/serial/sunzilog.c
index 99ff9abf57ce..8e916e76b7b5 100644
--- a/drivers/tty/serial/sunzilog.c
+++ b/drivers/tty/serial/sunzilog.c
@@ -474,7 +474,7 @@ static void sunzilog_transmit_chars(struct uart_sunzilog_port *up,
 		 * be nice to transmit console writes just like we normally would for
 		 * a TTY line. (ie. buffered and TX interrupt driven).  That is not
 		 * easy because console writes cannot sleep.  One solution might be
-		 * to poll on enough port->xmit space becomming free.  -DaveM
+		 * to poll on enough port->xmit space becoming free.  -DaveM
 		 */
 		if (!(status & Tx_BUF_EMP))
 			return;
diff --git a/drivers/tty/synclink.c b/drivers/tty/synclink.c
index 18888d005a0a..27da23d98e3f 100644
--- a/drivers/tty/synclink.c
+++ b/drivers/tty/synclink.c
@@ -4072,7 +4072,7 @@ static int mgsl_claim_resources(struct mgsl_struct *info)
 	
 	if ( request_irq(info->irq_level,mgsl_interrupt,info->irq_flags,
 		info->device_name, info ) < 0 ) {
-		printk( "%s(%d):Cant request interrupt on device %s IRQ=%d\n",
+		printk( "%s(%d):Can't request interrupt on device %s IRQ=%d\n",
 			__FILE__,__LINE__,info->device_name, info->irq_level );
 		goto errout;
 	}
@@ -4095,7 +4095,7 @@ static int mgsl_claim_resources(struct mgsl_struct *info)
 		info->memory_base = ioremap_nocache(info->phys_memory_base,
 								0x40000);
 		if (!info->memory_base) {
-			printk( "%s(%d):Cant map shared memory on device %s MemAddr=%08X\n",
+			printk( "%s(%d):Can't map shared memory on device %s MemAddr=%08X\n",
 				__FILE__,__LINE__,info->device_name, info->phys_memory_base );
 			goto errout;
 		}
@@ -4109,7 +4109,7 @@ static int mgsl_claim_resources(struct mgsl_struct *info)
 		info->lcr_base = ioremap_nocache(info->phys_lcr_base,
 								PAGE_SIZE);
 		if (!info->lcr_base) {
-			printk( "%s(%d):Cant map LCR memory on device %s MemAddr=%08X\n",
+			printk( "%s(%d):Can't map LCR memory on device %s MemAddr=%08X\n",
 				__FILE__,__LINE__,info->device_name, info->phys_lcr_base );
 			goto errout;
 		}
@@ -4119,7 +4119,7 @@ static int mgsl_claim_resources(struct mgsl_struct *info)
 		/* claim DMA channel */
 		
 		if (request_dma(info->dma_level,info->device_name) < 0){
-			printk( "%s(%d):Cant request DMA channel on device %s DMA=%d\n",
+			printk( "%s(%d):Can't request DMA channel on device %s DMA=%d\n",
 				__FILE__,__LINE__,info->device_name, info->dma_level );
 			mgsl_release_resources( info );
 			return -ENODEV;
@@ -4132,7 +4132,7 @@ static int mgsl_claim_resources(struct mgsl_struct *info)
 	}
 	
 	if ( mgsl_allocate_dma_buffers(info) < 0 ) {
-		printk( "%s(%d):Cant allocate DMA buffers on device %s DMA=%d\n",
+		printk( "%s(%d):Can't allocate DMA buffers on device %s DMA=%d\n",
 			__FILE__,__LINE__,info->device_name, info->dma_level );
 		goto errout;
 	}	
diff --git a/drivers/tty/synclink_gt.c b/drivers/tty/synclink_gt.c
index a35dd549a008..18b48cd3b41d 100644
--- a/drivers/tty/synclink_gt.c
+++ b/drivers/tty/synclink_gt.c
@@ -3491,7 +3491,7 @@ static int claim_resources(struct slgt_info *info)
 
 	info->reg_addr = ioremap_nocache(info->phys_reg_addr, SLGT_REG_SIZE);
 	if (!info->reg_addr) {
-		DBGERR(("%s cant map device registers, addr=%08X\n",
+		DBGERR(("%s can't map device registers, addr=%08X\n",
 			info->device_name, info->phys_reg_addr));
 		info->init_error = DiagStatus_CantAssignPciResources;
 		goto errout;
diff --git a/drivers/tty/synclinkmp.c b/drivers/tty/synclinkmp.c
index 327343694473..c77831c7675a 100644
--- a/drivers/tty/synclinkmp.c
+++ b/drivers/tty/synclinkmp.c
@@ -3595,7 +3595,7 @@ static int claim_resources(SLMP_INFO *info)
 	info->memory_base = ioremap_nocache(info->phys_memory_base,
 								SCA_MEM_SIZE);
 	if (!info->memory_base) {
-		printk( "%s(%d):%s Cant map shared memory, MemAddr=%08X\n",
+		printk( "%s(%d):%s Can't map shared memory, MemAddr=%08X\n",
 			__FILE__,__LINE__,info->device_name, info->phys_memory_base );
 		info->init_error = DiagStatus_CantAssignPciResources;
 		goto errout;
@@ -3603,7 +3603,7 @@ static int claim_resources(SLMP_INFO *info)
 
 	info->lcr_base = ioremap_nocache(info->phys_lcr_base, PAGE_SIZE);
 	if (!info->lcr_base) {
-		printk( "%s(%d):%s Cant map LCR memory, MemAddr=%08X\n",
+		printk( "%s(%d):%s Can't map LCR memory, MemAddr=%08X\n",
 			__FILE__,__LINE__,info->device_name, info->phys_lcr_base );
 		info->init_error = DiagStatus_CantAssignPciResources;
 		goto errout;
@@ -3612,7 +3612,7 @@ static int claim_resources(SLMP_INFO *info)
 
 	info->sca_base = ioremap_nocache(info->phys_sca_base, PAGE_SIZE);
 	if (!info->sca_base) {
-		printk( "%s(%d):%s Cant map SCA memory, MemAddr=%08X\n",
+		printk( "%s(%d):%s Can't map SCA memory, MemAddr=%08X\n",
 			__FILE__,__LINE__,info->device_name, info->phys_sca_base );
 		info->init_error = DiagStatus_CantAssignPciResources;
 		goto errout;
@@ -3622,7 +3622,7 @@ static int claim_resources(SLMP_INFO *info)
 	info->statctrl_base = ioremap_nocache(info->phys_statctrl_base,
 								PAGE_SIZE);
 	if (!info->statctrl_base) {
-		printk( "%s(%d):%s Cant map SCA Status/Control memory, MemAddr=%08X\n",
+		printk( "%s(%d):%s Can't map SCA Status/Control memory, MemAddr=%08X\n",
 			__FILE__,__LINE__,info->device_name, info->phys_statctrl_base );
 		info->init_error = DiagStatus_CantAssignPciResources;
 		goto errout;
@@ -3869,7 +3869,7 @@ static void device_init(int adapter_num, struct pci_dev *pdev)
 					port_array[0]->irq_flags,
 					port_array[0]->device_name,
 					port_array[0]) < 0 ) {
-			printk( "%s(%d):%s Cant request interrupt, IRQ=%d\n",
+			printk( "%s(%d):%s Can't request interrupt, IRQ=%d\n",
 				__FILE__,__LINE__,
 				port_array[0]->device_name,
 				port_array[0]->irq_level );
diff --git a/drivers/tty/sysrq.c b/drivers/tty/sysrq.c
index 81f13958e751..43db715f1502 100644
--- a/drivers/tty/sysrq.c
+++ b/drivers/tty/sysrq.c
@@ -306,7 +306,7 @@ static struct sysrq_key_op sysrq_ftrace_dump_op = {
 
 static void sysrq_handle_showmem(int key)
 {
-	show_mem();
+	show_mem(0);
 }
 static struct sysrq_key_op sysrq_showmem_op = {
 	.handler	= sysrq_handle_showmem,
diff --git a/drivers/tty/tty_buffer.c b/drivers/tty/tty_buffer.c
index b9451219528b..f1a7918d71aa 100644
--- a/drivers/tty/tty_buffer.c
+++ b/drivers/tty/tty_buffer.c
@@ -442,10 +442,8 @@ static void flush_to_ldisc(struct work_struct *work)
 			   line discipline as we want to empty the queue */
 			if (test_bit(TTY_FLUSHPENDING, &tty->flags))
 				break;
-			if (!tty->receive_room || seen_tail) {
-				schedule_work(&tty->buf.work);
+			if (!tty->receive_room || seen_tail)
 				break;
-			}
 			if (count > tty->receive_room)
 				count = tty->receive_room;
 			char_buf = head->char_buf_ptr + head->read;
diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
index 936a4ead6c21..d7d50b48287e 100644
--- a/drivers/tty/tty_io.c
+++ b/drivers/tty/tty_io.c
@@ -2134,7 +2134,7 @@ done:
  *	actually has driver level meaning and triggers a VC resize.
  *
  *	Locking:
- *		Driver dependant. The default do_resize method takes the
+ *		Driver dependent. The default do_resize method takes the
  *	tty termios mutex and ctrl_lock. The console takes its own lock
  *	then calls into the default method.
  */
@@ -2155,7 +2155,7 @@ static int tiocswinsz(struct tty_struct *tty, struct winsize __user *arg)
  *	tioccons	-	allow admin to move logical console
  *	@file: the file to become console
  *
- *	Allow the adminstrator to move the redirected console device
+ *	Allow the administrator to move the redirected console device
  *
  *	Locking: uses redirect_lock to guard the redirect information
  */
@@ -2290,7 +2290,7 @@ EXPORT_SYMBOL_GPL(tty_get_pgrp);
 /**
  *	tiocgpgrp		-	get process group
  *	@tty: tty passed by user
- *	@real_tty: tty side of the tty pased by the user if a pty else the tty
+ *	@real_tty: tty side of the tty passed by the user if a pty else the tty
  *	@p: returned pid
  *
  *	Obtain the process group of the tty. If there is no process group
@@ -2367,7 +2367,7 @@ out_unlock:
 /**
  *	tiocgsid		-	get session id
  *	@tty: tty passed by user
- *	@real_tty: tty side of the tty pased by the user if a pty else the tty
+ *	@real_tty: tty side of the tty passed by the user if a pty else the tty
  *	@p: pointer to returned session id
  *
  *	Obtain the session id of the tty. If there is no session
diff --git a/drivers/tty/tty_ioctl.c b/drivers/tty/tty_ioctl.c
index 1a1135d580a2..21574cb32343 100644
--- a/drivers/tty/tty_ioctl.c
+++ b/drivers/tty/tty_ioctl.c
@@ -247,7 +247,7 @@ speed_t tty_termios_baud_rate(struct ktermios *termios)
 	cbaud = termios->c_cflag & CBAUD;
 
 #ifdef BOTHER
-	/* Magic token for arbitary speed via c_ispeed/c_ospeed */
+	/* Magic token for arbitrary speed via c_ispeed/c_ospeed */
 	if (cbaud == BOTHER)
 		return termios->c_ospeed;
 #endif
@@ -283,7 +283,7 @@ speed_t tty_termios_input_baud_rate(struct ktermios *termios)
 	if (cbaud == B0)
 		return tty_termios_baud_rate(termios);
 
-	/* Magic token for arbitary speed via c_ispeed*/
+	/* Magic token for arbitrary speed via c_ispeed*/
 	if (cbaud == BOTHER)
 		return termios->c_ispeed;
 
@@ -449,7 +449,7 @@ EXPORT_SYMBOL(tty_get_baud_rate);
  *	@new: New termios
  *	@old: Old termios
  *
- *	Propogate the hardware specific terminal setting bits from
+ *	Propagate the hardware specific terminal setting bits from
  *	the old termios structure to the new one. This is used in cases
  *	where the hardware does not support reconfiguration or as a helper
  *	in some cases where only minimal reconfiguration is supported
diff --git a/drivers/tty/vt/keyboard.c b/drivers/tty/vt/keyboard.c
index 6dd3c68c13ad..d6b342b5b423 100644
--- a/drivers/tty/vt/keyboard.c
+++ b/drivers/tty/vt/keyboard.c
@@ -600,7 +600,7 @@ static void fn_scroll_back(struct vc_data *vc)
 
 static void fn_show_mem(struct vc_data *vc)
 {
-	show_mem();
+	show_mem(0);
 }
 
 static void fn_show_state(struct vc_data *vc)
diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index c83cdfb56fcc..4bea1efaec98 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -3963,7 +3963,7 @@ void reset_palette(struct vc_data *vc)
  *  of 32 pixels. Userspace fontdata is stored with 32 bytes (shorts/ints, 
  *  depending on width) reserved for each character which is kinda wasty, but 
  *  this is done in order to maintain compatibility with the EGA/VGA fonts. It 
- *  is upto the actual low-level console-driver convert data into its favorite
+ *  is up to the actual low-level console-driver convert data into its favorite
  *  format (maybe we should add a `fontoffset' field to the `display'
  *  structure so we won't have to convert the fontdata all the time.
  *  /Jes
diff --git a/drivers/uio/uio_pruss.c b/drivers/uio/uio_pruss.c
index daf6e77de2b1..e67b566e7aa3 100644
--- a/drivers/uio/uio_pruss.c
+++ b/drivers/uio/uio_pruss.c
@@ -39,7 +39,7 @@ module_param(extram_pool_sz, int, 0);
 MODULE_PARM_DESC(extram_pool_sz, "external ram pool size to allocate");
 
 /*
- * Host event IRQ numbers from PRUSS - PRUSS can generate upto 8 interrupt
+ * Host event IRQ numbers from PRUSS - PRUSS can generate up to 8 interrupt
  * events to AINTC of ARM host processor - which can be used for IPC b/w PRUSS
  * firmware and user space application, async notification from PRU firmware
  * to user space application
diff --git a/drivers/usb/atm/ueagle-atm.c b/drivers/usb/atm/ueagle-atm.c
index b268e9fccb47..e71521ce3010 100644
--- a/drivers/usb/atm/ueagle-atm.c
+++ b/drivers/usb/atm/ueagle-atm.c
@@ -1283,7 +1283,7 @@ static void uea_set_bulk_timeout(struct uea_softc *sc, u32 dsrate)
 
 	/* in bulk mode the modem have problem with high rate
 	 * changing internal timing could improve things, but the
-	 * value is misterious.
+	 * value is mysterious.
 	 * ADI930 don't support it (-EPIPE error).
 	 */
 
@@ -1743,7 +1743,7 @@ static int uea_send_cmvs_e1(struct uea_softc *sc)
 				goto out;
 		}
 	} else {
-		/* This realy should not happen */
+		/* This really should not happen */
 		uea_err(INS_TO_USBDEV(sc), "bad cmvs version %d\n", ver);
 		goto out;
 	}
@@ -1798,7 +1798,7 @@ static int uea_send_cmvs_e4(struct uea_softc *sc)
 				goto out;
 		}
 	} else {
-		/* This realy should not happen */
+		/* This really should not happen */
 		uea_err(INS_TO_USBDEV(sc), "bad cmvs version %d\n", ver);
 		goto out;
 	}
@@ -1829,7 +1829,7 @@ static int uea_start_reset(struct uea_softc *sc)
 
 	/* mask interrupt */
 	sc->booting = 1;
-	/* We need to set this here because, a ack timeout could have occured,
+	/* We need to set this here because, a ack timeout could have occurred,
 	 * but before we start the reboot, the ack occurs and set this to 1.
 	 * So we will failed to wait Ready CMV.
 	 */
diff --git a/drivers/usb/c67x00/c67x00-drv.c b/drivers/usb/c67x00/c67x00-drv.c
index b6d49234e521..62050f7a4f97 100644
--- a/drivers/usb/c67x00/c67x00-drv.c
+++ b/drivers/usb/c67x00/c67x00-drv.c
@@ -27,7 +27,7 @@
  * the link between the common hardware parts and the subdrivers (e.g.
  * interrupt handling).
  *
- * The c67x00 has 2 SIE's (serial interface engine) wich can be configured
+ * The c67x00 has 2 SIE's (serial interface engine) which can be configured
  * to be host, device or OTG (with some limitations, E.G. only SIE1 can be OTG).
  *
  * Depending on the platform configuration, the SIE's are created and
diff --git a/drivers/usb/c67x00/c67x00-hcd.h b/drivers/usb/c67x00/c67x00-hcd.h
index 74e44621e313..e3d493d4d61a 100644
--- a/drivers/usb/c67x00/c67x00-hcd.h
+++ b/drivers/usb/c67x00/c67x00-hcd.h
@@ -34,7 +34,7 @@
 /*
  * The following parameters depend on the CPU speed, bus speed, ...
  * These can be tuned for specific use cases, e.g. if isochronous transfers
- * are very important, bandwith can be sacrificed to guarantee that the
+ * are very important, bandwidth can be sacrificed to guarantee that the
  * 1ms deadline will be met.
  * If bulk transfers are important, the MAX_FRAME_BW can be increased,
  * but some (or many) isochronous deadlines might not be met.
diff --git a/drivers/usb/c67x00/c67x00-sched.c b/drivers/usb/c67x00/c67x00-sched.c
index f6b3c253f3fa..a03fbc15fa9c 100644
--- a/drivers/usb/c67x00/c67x00-sched.c
+++ b/drivers/usb/c67x00/c67x00-sched.c
@@ -907,7 +907,7 @@ static inline int c67x00_end_of_data(struct c67x00_td *td)
 
 /* Remove all td's from the list which come
  * after last_td and are meant for the same pipe.
- * This is used when a short packet has occured */
+ * This is used when a short packet has occurred */
 static inline void c67x00_clear_pipe(struct c67x00_hcd *c67x00,
 				     struct c67x00_td *last_td)
 {
diff --git a/drivers/usb/class/cdc-acm.h b/drivers/usb/class/cdc-acm.h
index 5eeb570b9a61..b4ea54dbf323 100644
--- a/drivers/usb/class/cdc-acm.h
+++ b/drivers/usb/class/cdc-acm.h
@@ -52,7 +52,7 @@
  */
 
 /*
- * The only reason to have several buffers is to accomodate assumptions
+ * The only reason to have several buffers is to accommodate assumptions
  * in line disciplines. They ask for empty space amount, receive our URB size,
  * and proceed to issue several 1-character writes, assuming they will fit.
  * The very first write takes a complete URB. Fortunately, this only happens
diff --git a/drivers/usb/class/usbtmc.c b/drivers/usb/class/usbtmc.c
index 6a54634ab823..385acb895ab3 100644
--- a/drivers/usb/class/usbtmc.c
+++ b/drivers/usb/class/usbtmc.c
@@ -483,7 +483,7 @@ static ssize_t usbtmc_read(struct file *filp, char __user *buf,
 		}
 
 		done += n_characters;
-		/* Terminate if end-of-message bit recieved from device */
+		/* Terminate if end-of-message bit received from device */
 		if ((buffer[8] &  0x01) && (actual >= n_characters + 12))
 			remaining = 0;
 		else
diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index 02b4dbfa488a..8eed05d23838 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -700,7 +700,7 @@ void usb_hcd_poll_rh_status(struct usb_hcd *hcd)
 	/* The USB 2.0 spec says 256 ms.  This is close enough and won't
 	 * exceed that limit if HZ is 100. The math is more clunky than
 	 * maybe expected, this is to make sure that all timers for USB devices
-	 * fire at the same time to give the CPU a break inbetween */
+	 * fire at the same time to give the CPU a break in between */
 	if (hcd->uses_new_polling ? HCD_POLL_RH(hcd) :
 			(length == 0 && hcd->status_urb != NULL))
 		mod_timer (&hcd->rh_timer, (jiffies/(HZ/4) + 1) * (HZ/4));
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 564eaa5525d7..8fb754916c67 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -1649,7 +1649,7 @@ void usb_disconnect(struct usb_device **pdev)
 
 	/* mark the device as inactive, so any further urb submissions for
 	 * this device (and any of its children) will fail immediately.
-	 * this quiesces everyting except pending urbs.
+	 * this quiesces everything except pending urbs.
 	 */
 	usb_set_device_state(udev, USB_STATE_NOTATTACHED);
 	dev_info(&udev->dev, "USB disconnect, device number %d\n",
diff --git a/drivers/usb/early/ehci-dbgp.c b/drivers/usb/early/ehci-dbgp.c
index 0bc06e2bcfcb..a6a350f5827b 100644
--- a/drivers/usb/early/ehci-dbgp.c
+++ b/drivers/usb/early/ehci-dbgp.c
@@ -648,7 +648,7 @@ static int ehci_reset_port(int port)
 		if (!(portsc & PORT_CONNECT))
 			return -ENOTCONN;
 
-		/* bomb out completely if something weird happend */
+		/* bomb out completely if something weird happened */
 		if ((portsc & PORT_CSC))
 			return -EINVAL;
 
diff --git a/drivers/usb/gadget/amd5536udc.c b/drivers/usb/gadget/amd5536udc.c
index f8dd7269d79c..6e42aab75806 100644
--- a/drivers/usb/gadget/amd5536udc.c
+++ b/drivers/usb/gadget/amd5536udc.c
@@ -278,7 +278,7 @@ static int udc_enable_dev_setup_interrupts(struct udc *dev)
 	return 0;
 }
 
-/* Calculates fifo start of endpoint based on preceeding endpoints */
+/* Calculates fifo start of endpoint based on preceding endpoints */
 static int udc_set_txfifo_addr(struct udc_ep *ep)
 {
 	struct udc	*dev;
@@ -2137,7 +2137,7 @@ static irqreturn_t udc_data_out_isr(struct udc *dev, int ep_ix)
 	if (use_dma) {
 		/* BNA event ? */
 		if (tmp & AMD_BIT(UDC_EPSTS_BNA)) {
-			DBG(dev, "BNA ep%dout occured - DESPTR = %x \n",
+			DBG(dev, "BNA ep%dout occurred - DESPTR = %x \n",
 					ep->num, readl(&ep->regs->desptr));
 			/* clear BNA */
 			writel(tmp | AMD_BIT(UDC_EPSTS_BNA), &ep->regs->sts);
@@ -2151,7 +2151,7 @@ static irqreturn_t udc_data_out_isr(struct udc *dev, int ep_ix)
 	}
 	/* HE event ? */
 	if (tmp & AMD_BIT(UDC_EPSTS_HE)) {
-		dev_err(&dev->pdev->dev, "HE ep%dout occured\n", ep->num);
+		dev_err(&dev->pdev->dev, "HE ep%dout occurred\n", ep->num);
 
 		/* clear HE */
 		writel(tmp | AMD_BIT(UDC_EPSTS_HE), &ep->regs->sts);
@@ -2354,7 +2354,7 @@ static irqreturn_t udc_data_in_isr(struct udc *dev, int ep_ix)
 		/* BNA ? */
 		if (epsts & AMD_BIT(UDC_EPSTS_BNA)) {
 			dev_err(&dev->pdev->dev,
-				"BNA ep%din occured - DESPTR = %08lx \n",
+				"BNA ep%din occurred - DESPTR = %08lx \n",
 				ep->num,
 				(unsigned long) readl(&ep->regs->desptr));
 
@@ -2367,7 +2367,7 @@ static irqreturn_t udc_data_in_isr(struct udc *dev, int ep_ix)
 	/* HE event ? */
 	if (epsts & AMD_BIT(UDC_EPSTS_HE)) {
 		dev_err(&dev->pdev->dev,
-			"HE ep%dn occured - DESPTR = %08lx \n",
+			"HE ep%dn occurred - DESPTR = %08lx \n",
 			ep->num, (unsigned long) readl(&ep->regs->desptr));
 
 		/* clear HE */
@@ -2384,7 +2384,7 @@ static irqreturn_t udc_data_in_isr(struct udc *dev, int ep_ix)
 			req = list_entry(ep->queue.next,
 					struct udc_request, queue);
 			/*
-			 * length bytes transfered
+			 * length bytes transferred
 			 * check dma done of last desc. in PPBDU mode
 			 */
 			if (use_dma_ppb_du) {
@@ -2784,7 +2784,7 @@ static irqreturn_t udc_control_in_isr(struct udc *dev)
 					/* write fifo */
 					udc_txfifo_write(ep, &req->req);
 
-					/* lengh bytes transfered */
+					/* lengh bytes transferred */
 					len = req->req.length - req->req.actual;
 					if (len > ep->ep.maxpacket)
 						len = ep->ep.maxpacket;
diff --git a/drivers/usb/gadget/amd5536udc.h b/drivers/usb/gadget/amd5536udc.h
index 4bbabbbfc93f..1d1c7543468e 100644
--- a/drivers/usb/gadget/amd5536udc.h
+++ b/drivers/usb/gadget/amd5536udc.h
@@ -584,7 +584,7 @@ union udc_setup_data {
  * SET and GET bitfields in u32 values
  * via constants for mask/offset:
  * <bit_field_stub_name> is the text between
- * UDC_ and _MASK|_OFS of appropiate
+ * UDC_ and _MASK|_OFS of appropriate
  * constant
  *
  * set bitfield value in u32 u32Val
diff --git a/drivers/usb/gadget/at91_udc.c b/drivers/usb/gadget/at91_udc.c
index bb8ddf0469f9..9b7cdb16f26b 100644
--- a/drivers/usb/gadget/at91_udc.c
+++ b/drivers/usb/gadget/at91_udc.c
@@ -826,7 +826,7 @@ done:
 	return status;
 }
 
-/* reinit == restore inital software state */
+/* reinit == restore initial software state */
 static void udc_reinit(struct at91_udc *udc)
 {
 	u32 i;
diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c
index c2251c40a205..82314ed22506 100644
--- a/drivers/usb/gadget/composite.c
+++ b/drivers/usb/gadget/composite.c
@@ -42,7 +42,7 @@
 static struct usb_composite_driver *composite;
 static int (*composite_gadget_bind)(struct usb_composite_dev *cdev);
 
-/* Some systems will need runtime overrides for the  product identifers
+/* Some systems will need runtime overrides for the  product identifiers
  * published in the device descriptor, either numbers or strings or both.
  * String parameters are in UTF-8 (superset of ASCII's 7 bit characters).
  */
@@ -205,14 +205,14 @@ int usb_function_activate(struct usb_function *function)
  * usb_interface_id() is called from usb_function.bind() callbacks to
  * allocate new interface IDs.  The function driver will then store that
  * ID in interface, association, CDC union, and other descriptors.  It
- * will also handle any control requests targetted at that interface,
+ * will also handle any control requests targeted at that interface,
  * particularly changing its altsetting via set_alt().  There may
  * also be class-specific or vendor-specific requests to handle.
  *
  * All interface identifier should be allocated using this routine, to
  * ensure that for example different functions don't wrongly assign
  * different meanings to the same identifier.  Note that since interface
- * identifers are configuration-specific, functions used in more than
+ * identifiers are configuration-specific, functions used in more than
  * one configuration (or more than once in a given configuration) need
  * multiple versions of the relevant descriptors.
  *
diff --git a/drivers/usb/gadget/f_audio.c b/drivers/usb/gadget/f_audio.c
index 00975ed903d1..9abecfddb27d 100644
--- a/drivers/usb/gadget/f_audio.c
+++ b/drivers/usb/gadget/f_audio.c
@@ -742,7 +742,7 @@ int __init control_selector_init(struct f_audio *audio)
 }
 
 /**
- * audio_bind_config - add USB audio fucntion to a configuration
+ * audio_bind_config - add USB audio function to a configuration
  * @c: the configuration to supcard the USB audio function
  * Context: single threaded during gadget setup
  *
diff --git a/drivers/usb/gadget/f_ncm.c b/drivers/usb/gadget/f_ncm.c
index 130eee678c8b..86902a60bcdb 100644
--- a/drivers/usb/gadget/f_ncm.c
+++ b/drivers/usb/gadget/f_ncm.c
@@ -111,7 +111,7 @@ static inline unsigned ncm_bitrate(struct usb_gadget *g)
 #define NTB_OUT_SIZE		16384
 
 /*
- * skbs of size less than that will not be alligned
+ * skbs of size less than that will not be aligned
  * to NCM's dwNtbInMaxSize to save bus bandwidth
  */
 
diff --git a/drivers/usb/gadget/fsl_qe_udc.h b/drivers/usb/gadget/fsl_qe_udc.h
index bea5b827bebe..e35e24fd64bb 100644
--- a/drivers/usb/gadget/fsl_qe_udc.h
+++ b/drivers/usb/gadget/fsl_qe_udc.h
@@ -208,14 +208,14 @@ struct qe_frame{
 /* Frame status field */
 /* Receive side */
 #define FRAME_OK               0x00000000 /* Frame tranmitted or received OK */
-#define FRAME_ERROR            0x80000000 /* Error occured on frame */
+#define FRAME_ERROR            0x80000000 /* Error occurred on frame */
 #define START_FRAME_LOST       0x40000000 /* START_FRAME_LOST */
 #define END_FRAME_LOST         0x20000000 /* END_FRAME_LOST */
 #define RX_ER_NONOCT           0x10000000 /* Rx Non Octet Aligned Packet */
 #define RX_ER_BITSTUFF         0x08000000 /* Frame Aborted --Received packet
 					     with bit stuff error */
 #define RX_ER_CRC              0x04000000 /* Received packet with CRC error */
-#define RX_ER_OVERUN           0x02000000 /* Over-run occured on reception */
+#define RX_ER_OVERUN           0x02000000 /* Over-run occurred on reception */
 #define RX_ER_PID              0x01000000 /* Wrong PID received */
 /* Tranmit side */
 #define TX_ER_NAK              0x00800000 /* Received NAK handshake */
@@ -379,7 +379,7 @@ struct qe_udc {
 #define T_LSP         0x01000000         /* Low-speed transaction */
 #define T_PID         0x00c00000         /* packet id */
 #define T_NAK         0x00100000         /* No ack. */
-#define T_STAL        0x00080000         /* Stall recieved */
+#define T_STAL        0x00080000         /* Stall received */
 #define T_TO          0x00040000         /* time out */
 #define T_UN          0x00020000         /* underrun */
 
diff --git a/drivers/usb/gadget/fsl_udc_core.c b/drivers/usb/gadget/fsl_udc_core.c
index 912cb8e63fe3..07499c1cdcc4 100644
--- a/drivers/usb/gadget/fsl_udc_core.c
+++ b/drivers/usb/gadget/fsl_udc_core.c
@@ -464,7 +464,7 @@ static int fsl_ep_enable(struct usb_ep *_ep,
 
 	max = le16_to_cpu(desc->wMaxPacketSize);
 
-	/* Disable automatic zlp generation.  Driver is reponsible to indicate
+	/* Disable automatic zlp generation.  Driver is responsible to indicate
 	 * explicitly through req->req.zero.  This is needed to enable multi-td
 	 * request. */
 	zlt = 1;
@@ -648,7 +648,7 @@ static void fsl_queue_td(struct fsl_ep *ep, struct fsl_req *req)
 			| EP_QUEUE_HEAD_STATUS_HALT));
 	dQH->size_ioc_int_sts &= temp;
 
-	/* Ensure that updates to the QH will occure before priming. */
+	/* Ensure that updates to the QH will occur before priming. */
 	wmb();
 
 	/* Prime endpoint by writing 1 to ENDPTPRIME */
@@ -1459,7 +1459,7 @@ static int process_ep_req(struct fsl_udc *udc, int pipe,
 				status = -EILSEQ;
 				break;
 			} else
-				ERR("Unknown error has occured (0x%x)!\n",
+				ERR("Unknown error has occurred (0x%x)!\n",
 					errors);
 
 		} else if (le32_to_cpu(curr_td->size_ioc_sts)
diff --git a/drivers/usb/gadget/fsl_usb2_udc.h b/drivers/usb/gadget/fsl_usb2_udc.h
index 20aeceed48c7..e88cce5c2c0d 100644
--- a/drivers/usb/gadget/fsl_usb2_udc.h
+++ b/drivers/usb/gadget/fsl_usb2_udc.h
@@ -15,7 +15,7 @@ struct usb_dr_device {
 	u8 res1[256];
 	u16 caplength;		/* Capability Register Length */
 	u16 hciversion;		/* Host Controller Interface Version */
-	u32 hcsparams;		/* Host Controller Structual Parameters */
+	u32 hcsparams;		/* Host Controller Structural Parameters */
 	u32 hccparams;		/* Host Controller Capability Parameters */
 	u8 res2[20];
 	u32 dciversion;		/* Device Controller Interface Version */
@@ -52,7 +52,7 @@ struct usb_dr_host {
 	u8 res1[256];
 	u16 caplength;		/* Capability Register Length */
 	u16 hciversion;		/* Host Controller Interface Version */
-	u32 hcsparams;		/* Host Controller Structual Parameters */
+	u32 hcsparams;		/* Host Controller Structural Parameters */
 	u32 hccparams;		/* Host Controller Capability Parameters */
 	u8 res2[20];
 	u32 dciversion;		/* Device Controller Interface Version */
diff --git a/drivers/usb/gadget/gmidi.c b/drivers/usb/gadget/gmidi.c
index 0ab7e141d494..47b86b99d449 100644
--- a/drivers/usb/gadget/gmidi.c
+++ b/drivers/usb/gadget/gmidi.c
@@ -67,7 +67,7 @@ MODULE_PARM_DESC(index, "Index value for the USB MIDI Gadget adapter.");
 module_param(id, charp, 0444);
 MODULE_PARM_DESC(id, "ID string for the USB MIDI Gadget adapter.");
 
-/* Some systems will want different product identifers published in the
+/* Some systems will want different product identifiers published in the
  * device descriptor, either numbers or strings or both.  These string
  * parameters are in UTF-8 (superset of ASCII's 7 bit characters).
  */
diff --git a/drivers/usb/gadget/langwell_udc.c b/drivers/usb/gadget/langwell_udc.c
index 1eca8b47ce3c..9cee88a43a73 100644
--- a/drivers/usb/gadget/langwell_udc.c
+++ b/drivers/usb/gadget/langwell_udc.c
@@ -642,7 +642,7 @@ static int queue_dtd(struct langwell_ep *ep, struct langwell_request *req)
 	dqh->dtd_status &= dtd_status;
 	dev_vdbg(&dev->pdev->dev, "dqh->dtd_status = 0x%x\n", dqh->dtd_status);
 
-	/* ensure that updates to the dQH will occure before priming */
+	/* ensure that updates to the dQH will occur before priming */
 	wmb();
 
 	/* write 1 to endptprime register to PRIME endpoint */
diff --git a/drivers/usb/gadget/mv_udc_core.c b/drivers/usb/gadget/mv_udc_core.c
index d5468a7f38e0..b62b2640deb0 100644
--- a/drivers/usb/gadget/mv_udc_core.c
+++ b/drivers/usb/gadget/mv_udc_core.c
@@ -325,7 +325,7 @@ static int queue_dtd(struct mv_ep *ep, struct mv_req *req)
 
 			/*
 			 * Ensure that updates to the QH will
-			 * occure before priming.
+			 * occur before priming.
 			 */
 			wmb();
 
@@ -338,7 +338,7 @@ static int queue_dtd(struct mv_ep *ep, struct mv_req *req)
 			& EP_QUEUE_HEAD_NEXT_POINTER_MASK;;
 		dqh->size_ioc_int_sts = 0;
 
-		/* Ensure that updates to the QH will occure before priming. */
+		/* Ensure that updates to the QH will occur before priming. */
 		wmb();
 
 		/* Prime the Endpoint */
@@ -1845,7 +1845,7 @@ static irqreturn_t mv_udc_irq(int irq, void *dev)
 		return IRQ_NONE;
 	}
 
-	/* Clear all the interrupts occured */
+	/* Clear all the interrupts occurred */
 	writel(status, &udc->op_regs->usbsts);
 
 	if (status & USBSTS_ERR)
diff --git a/drivers/usb/gadget/net2280.c b/drivers/usb/gadget/net2280.c
index d09155b25d73..24696f7fa6a9 100644
--- a/drivers/usb/gadget/net2280.c
+++ b/drivers/usb/gadget/net2280.c
@@ -117,7 +117,7 @@ module_param (fifo_mode, ushort, 0644);
 
 /* enable_suspend -- When enabled, the driver will respond to
  * USB suspend requests by powering down the NET2280.  Otherwise,
- * USB suspend requests will be ignored.  This is acceptible for
+ * USB suspend requests will be ignored.  This is acceptable for
  * self-powered devices
  */
 static int enable_suspend = 0;
diff --git a/drivers/usb/gadget/nokia.c b/drivers/usb/gadget/nokia.c
index b5364f9d7cd2..55ca63ad3506 100644
--- a/drivers/usb/gadget/nokia.c
+++ b/drivers/usb/gadget/nokia.c
@@ -203,7 +203,7 @@ static int __init nokia_bind(struct usb_composite_dev *cdev)
 		goto err_usb;
 	}
 
-	/* finaly register the configuration */
+	/* finally register the configuration */
 	status = usb_add_config(cdev, &nokia_config_500ma_driver,
 			nokia_bind_config);
 	if (status < 0)
diff --git a/drivers/usb/gadget/printer.c b/drivers/usb/gadget/printer.c
index 12ff6cffedc9..c3f2bd42bd5a 100644
--- a/drivers/usb/gadget/printer.c
+++ b/drivers/usb/gadget/printer.c
@@ -126,7 +126,7 @@ static struct printer_dev usb_printer_gadget;
 #define PRINTER_VENDOR_NUM	0x0525		/* NetChip */
 #define PRINTER_PRODUCT_NUM	0xa4a8		/* Linux-USB Printer Gadget */
 
-/* Some systems will want different product identifers published in the
+/* Some systems will want different product identifiers published in the
  * device descriptor, either numbers or strings or both.  These string
  * parameters are in UTF-8 (superset of ASCII's 7 bit characters).
  */
diff --git a/drivers/usb/gadget/pxa25x_udc.c b/drivers/usb/gadget/pxa25x_udc.c
index b37f92cb71bc..444b60aa15e9 100644
--- a/drivers/usb/gadget/pxa25x_udc.c
+++ b/drivers/usb/gadget/pxa25x_udc.c
@@ -139,24 +139,6 @@ static const char ep0name [] = "ep0";
 static void pxa25x_ep_fifo_flush (struct usb_ep *ep);
 static void nuke (struct pxa25x_ep *, int status);
 
-/* one GPIO should be used to detect VBUS from the host */
-static int is_vbus_present(void)
-{
-	struct pxa2xx_udc_mach_info		*mach = the_controller->mach;
-
-	if (gpio_is_valid(mach->gpio_vbus)) {
-		int value = gpio_get_value(mach->gpio_vbus);
-
-		if (mach->gpio_vbus_inverted)
-			return !value;
-		else
-			return !!value;
-	}
-	if (mach->udc_is_connected)
-		return mach->udc_is_connected();
-	return 1;
-}
-
 /* one GPIO should control a D+ pullup, so host sees this device (or not) */
 static void pullup_off(void)
 {
@@ -1055,7 +1037,7 @@ udc_seq_show(struct seq_file *m, void *_d)
 		"%s version: %s\nGadget driver: %s\nHost %s\n\n",
 		driver_name, DRIVER_VERSION SIZE_STR "(pio)",
 		dev->driver ? dev->driver->driver.name : "(none)",
-		is_vbus_present() ? "full speed" : "disconnected");
+		dev->gadget.speed == USB_SPEED_FULL ? "full speed" : "disconnected");
 
 	/* registers for device and ep0 */
 	seq_printf(m,
@@ -1094,7 +1076,7 @@ udc_seq_show(struct seq_file *m, void *_d)
 			(tmp & UDCCFR_ACM) ? " acm" : "");
 	}
 
-	if (!is_vbus_present() || !dev->driver)
+	if (dev->gadget.speed != USB_SPEED_FULL || !dev->driver)
 		goto done;
 
 	seq_printf(m, "ep0 IN %lu/%lu, OUT %lu/%lu\nirqs %lu\n\n",
@@ -1435,14 +1417,6 @@ lubbock_vbus_irq(int irq, void *_dev)
 
 #endif
 
-static irqreturn_t udc_vbus_irq(int irq, void *_dev)
-{
-	struct pxa25x_udc	*dev = _dev;
-
-	pxa25x_udc_vbus_session(&dev->gadget, is_vbus_present());
-	return IRQ_HANDLED;
-}
-
 
 /*-------------------------------------------------------------------------*/
 
@@ -1766,12 +1740,9 @@ pxa25x_udc_irq(int irq, void *_dev)
 		if (unlikely(udccr & UDCCR_SUSIR)) {
 			udc_ack_int_UDCCR(UDCCR_SUSIR);
 			handled = 1;
-			DBG(DBG_VERBOSE, "USB suspend%s\n", is_vbus_present()
-				? "" : "+disconnect");
+			DBG(DBG_VERBOSE, "USB suspend\n");
 
-			if (!is_vbus_present())
-				stop_activity(dev, dev->driver);
-			else if (dev->gadget.speed != USB_SPEED_UNKNOWN
+			if (dev->gadget.speed != USB_SPEED_UNKNOWN
 					&& dev->driver
 					&& dev->driver->suspend)
 				dev->driver->suspend(&dev->gadget);
@@ -1786,8 +1757,7 @@ pxa25x_udc_irq(int irq, void *_dev)
 
 			if (dev->gadget.speed != USB_SPEED_UNKNOWN
 					&& dev->driver
-					&& dev->driver->resume
-					&& is_vbus_present())
+					&& dev->driver->resume)
 				dev->driver->resume(&dev->gadget);
 		}
 
@@ -2137,7 +2107,7 @@ static struct pxa25x_udc memory = {
 static int __init pxa25x_udc_probe(struct platform_device *pdev)
 {
 	struct pxa25x_udc *dev = &memory;
-	int retval, vbus_irq, irq;
+	int retval, irq;
 	u32 chiprev;
 
 	/* insist on Intel/ARM/XScale */
@@ -2199,19 +2169,6 @@ static int __init pxa25x_udc_probe(struct platform_device *pdev)
 
 	dev->transceiver = otg_get_transceiver();
 
-	if (gpio_is_valid(dev->mach->gpio_vbus)) {
-		if ((retval = gpio_request(dev->mach->gpio_vbus,
-				"pxa25x_udc GPIO VBUS"))) {
-			dev_dbg(&pdev->dev,
-				"can't get vbus gpio %d, err: %d\n",
-				dev->mach->gpio_vbus, retval);
-			goto err_gpio_vbus;
-		}
-		gpio_direction_input(dev->mach->gpio_vbus);
-		vbus_irq = gpio_to_irq(dev->mach->gpio_vbus);
-	} else
-		vbus_irq = 0;
-
 	if (gpio_is_valid(dev->mach->gpio_pullup)) {
 		if ((retval = gpio_request(dev->mach->gpio_pullup,
 				"pca25x_udc GPIO PULLUP"))) {
@@ -2237,7 +2194,7 @@ static int __init pxa25x_udc_probe(struct platform_device *pdev)
 	udc_disable(dev);
 	udc_reinit(dev);
 
-	dev->vbus = !!is_vbus_present();
+	dev->vbus = 0;
 
 	/* irq setup after old hardware state is cleaned up */
 	retval = request_irq(irq, pxa25x_udc_irq,
@@ -2273,22 +2230,10 @@ lubbock_fail0:
 		}
 	} else
 #endif
-	if (vbus_irq) {
-		retval = request_irq(vbus_irq, udc_vbus_irq,
-				IRQF_DISABLED | IRQF_SAMPLE_RANDOM |
-				IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
-				driver_name, dev);
-		if (retval != 0) {
-			pr_err("%s: can't get irq %i, err %d\n",
-				driver_name, vbus_irq, retval);
-			goto err_vbus_irq;
-		}
-	}
 	create_debug_files(dev);
 
 	return 0;
 
- err_vbus_irq:
 #ifdef	CONFIG_ARCH_LUBBOCK
 	free_irq(LUBBOCK_USB_DISC_IRQ, dev);
  err_irq_lub:
@@ -2298,9 +2243,6 @@ lubbock_fail0:
 	if (gpio_is_valid(dev->mach->gpio_pullup))
 		gpio_free(dev->mach->gpio_pullup);
  err_gpio_pullup:
-	if (gpio_is_valid(dev->mach->gpio_vbus))
-		gpio_free(dev->mach->gpio_vbus);
- err_gpio_vbus:
 	if (dev->transceiver) {
 		otg_put_transceiver(dev->transceiver);
 		dev->transceiver = NULL;
@@ -2337,10 +2279,6 @@ static int __exit pxa25x_udc_remove(struct platform_device *pdev)
 		free_irq(LUBBOCK_USB_IRQ, dev);
 	}
 #endif
-	if (gpio_is_valid(dev->mach->gpio_vbus)) {
-		free_irq(gpio_to_irq(dev->mach->gpio_vbus), dev);
-		gpio_free(dev->mach->gpio_vbus);
-	}
 	if (gpio_is_valid(dev->mach->gpio_pullup))
 		gpio_free(dev->mach->gpio_pullup);
 
diff --git a/drivers/usb/gadget/pxa27x_udc.c b/drivers/usb/gadget/pxa27x_udc.c
index 2efd6732d130..78a39a41547d 100644
--- a/drivers/usb/gadget/pxa27x_udc.c
+++ b/drivers/usb/gadget/pxa27x_udc.c
@@ -602,7 +602,7 @@ static void inc_ep_stats_reqs(struct pxa_ep *ep, int is_in)
 /**
  * inc_ep_stats_bytes - Update ep stats counts
  * @ep: physical endpoint
- * @count: bytes transfered on endpoint
+ * @count: bytes transferred on endpoint
  * @is_in: ep direction (USB_DIR_IN or 0)
  */
 static void inc_ep_stats_bytes(struct pxa_ep *ep, int count, int is_in)
@@ -877,7 +877,7 @@ static void nuke(struct pxa_ep *ep, int status)
  * If there is less space in request than bytes received in OUT endpoint,
  * bytes are left in the OUT endpoint.
  *
- * Returns how many bytes were actually transfered
+ * Returns how many bytes were actually transferred
  */
 static int read_packet(struct pxa_ep *ep, struct pxa27x_request *req)
 {
@@ -914,7 +914,7 @@ static int read_packet(struct pxa_ep *ep, struct pxa27x_request *req)
  * endpoint. If there are no bytes to transfer, doesn't write anything
  * to physical endpoint.
  *
- * Returns how many bytes were actually transfered.
+ * Returns how many bytes were actually transferred.
  */
 static int write_packet(struct pxa_ep *ep, struct pxa27x_request *req,
 			unsigned int max)
@@ -991,7 +991,7 @@ static int read_fifo(struct pxa_ep *ep, struct pxa27x_request *req)
  * caller guarantees at least one packet buffer is ready (or a zlp).
  * Doesn't complete the request, that's the caller's job
  *
- * Returns 1 if request fully transfered, 0 if partial transfer
+ * Returns 1 if request fully transferred, 0 if partial transfer
  */
 static int write_fifo(struct pxa_ep *ep, struct pxa27x_request *req)
 {
@@ -1094,7 +1094,7 @@ static int read_ep0_fifo(struct pxa_ep *ep, struct pxa27x_request *req)
  * Sends a request (or a part of the request) to the control endpoint (ep0 in).
  * If the request doesn't fit, the remaining part will be sent from irq.
  * The request is considered fully written only if either :
- *   - last write transfered all remaining bytes, but fifo was not fully filled
+ *   - last write transferred all remaining bytes, but fifo was not fully filled
  *   - last write was a 0 length write
  *
  * Returns 1 if request fully written, 0 if request only partially sent
@@ -1548,7 +1548,7 @@ static int pxa_udc_get_frame(struct usb_gadget *_gadget)
  * pxa_udc_wakeup - Force udc device out of suspend
  * @_gadget: usb gadget
  *
- * Returns 0 if successfull, error code otherwise
+ * Returns 0 if successful, error code otherwise
  */
 static int pxa_udc_wakeup(struct usb_gadget *_gadget)
 {
diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c
index ef825c3baed9..0912679de99a 100644
--- a/drivers/usb/gadget/s3c-hsotg.c
+++ b/drivers/usb/gadget/s3c-hsotg.c
@@ -41,8 +41,8 @@
 /* EP0_MPS_LIMIT
  *
  * Unfortunately there seems to be a limit of the amount of data that can
- * be transfered by IN transactions on EP0. This is either 127 bytes or 3
- * packets (which practially means 1 packet and 63 bytes of data) when the
+ * be transferred by IN transactions on EP0. This is either 127 bytes or 3
+ * packets (which practically means 1 packet and 63 bytes of data) when the
  * MPS is set to 64.
  *
  * This means if we are wanting to move >127 bytes of data, we need to
@@ -783,7 +783,7 @@ static void s3c_hsotg_start_req(struct s3c_hsotg *hsotg,
 		       hsotg->regs + S3C_DIEPINT(index));
 
 	/* Note, trying to clear the NAK here causes problems with transmit
-	 * on the S3C6400 ending up with the TXFIFO becomming full. */
+	 * on the S3C6400 ending up with the TXFIFO becoming full. */
 
 	/* check ep is enabled */
 	if (!(readl(hsotg->regs + epctrl_reg) & S3C_DxEPCTL_EPEna))
@@ -1176,10 +1176,10 @@ static void s3c_hsotg_process_control(struct s3c_hsotg *hsotg,
 		writel(ctrl, hsotg->regs + reg);
 
 		dev_dbg(hsotg->dev,
-			"writen DxEPCTL=0x%08x to %08x (DxEPCTL=0x%08x)\n",
+			"written DxEPCTL=0x%08x to %08x (DxEPCTL=0x%08x)\n",
 			ctrl, reg, readl(hsotg->regs + reg));
 
-		/* don't belive we need to anything more to get the EP
+		/* don't believe we need to anything more to get the EP
 		 * to reply with a STALL packet */
 	}
 }
@@ -1416,7 +1416,7 @@ static void s3c_hsotg_rx_data(struct s3c_hsotg *hsotg, int ep_idx, int size)
  * transaction.
  *
  * Note, since we don't write any data to the TxFIFO, then it is
- * currently belived that we do not need to wait for any space in
+ * currently believed that we do not need to wait for any space in
  * the TxFIFO.
  */
 static void s3c_hsotg_send_zlp(struct s3c_hsotg *hsotg,
@@ -1540,7 +1540,7 @@ static u32 s3c_hsotg_read_frameno(struct s3c_hsotg *hsotg)
  * that requires processing, so find out what is in there and do the
  * appropriate read.
  *
- * The RXFIFO is a true FIFO, the packets comming out are still in packet
+ * The RXFIFO is a true FIFO, the packets coming out are still in packet
  * chunks, so if you have x packets received on an endpoint you'll get x
  * FIFO events delivered, each with a packet's worth of data in it.
  *
@@ -2188,7 +2188,7 @@ irq_retry:
 
 	/* these next two seem to crop-up occasionally causing the core
 	 * to shutdown the USB transfer, so try clearing them and logging
-	 * the occurence. */
+	 * the occurrence. */
 
 	if (gintsts & S3C_GINTSTS_GOUTNakEff) {
 		dev_info(hsotg->dev, "GOUTNakEff triggered\n");
@@ -2469,7 +2469,7 @@ static struct usb_ep_ops s3c_hsotg_ep_ops = {
 	.queue		= s3c_hsotg_ep_queue,
 	.dequeue	= s3c_hsotg_ep_dequeue,
 	.set_halt	= s3c_hsotg_ep_sethalt,
-	/* note, don't belive we have any call for the fifo routines */
+	/* note, don't believe we have any call for the fifo routines */
 };
 
 /**
diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index 9483acdf2e9e..e0e0787b724b 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -402,7 +402,7 @@ config FHCI_DEBUG
 	depends on USB_FHCI_HCD && DEBUG_FS
 	help
 	  Say "y" to see some FHCI debug information and statistics
-	  throught debugfs.
+	  through debugfs.
 
 config USB_U132_HCD
 	tristate "Elan U132 Adapter Host Controller"
diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h
index f86d3fa20214..333ddc156919 100644
--- a/drivers/usb/host/ehci.h
+++ b/drivers/usb/host/ehci.h
@@ -644,7 +644,7 @@ static inline void ehci_writel(const struct ehci_hcd *ehci,
 /*
  * On certain ppc-44x SoC there is a HW issue, that could only worked around with
  * explicit suspend/operate of OHCI. This function hereby makes sense only on that arch.
- * Other common bits are dependant on has_amcc_usb23 quirk flag.
+ * Other common bits are dependent on has_amcc_usb23 quirk flag.
  */
 #ifdef CONFIG_44x
 static inline void set_ohci_hcfs(struct ehci_hcd *ehci, int operational)
diff --git a/drivers/usb/host/fhci-hcd.c b/drivers/usb/host/fhci-hcd.c
index b84ff7e51896..19223c7449e1 100644
--- a/drivers/usb/host/fhci-hcd.c
+++ b/drivers/usb/host/fhci-hcd.c
@@ -401,7 +401,7 @@ static int fhci_urb_enqueue(struct usb_hcd *hcd, struct urb *urb,
 		/* 1 td fro setup,1 for ack */
 		size = 2;
 	case PIPE_BULK:
-		/* one td for every 4096 bytes(can be upto 8k) */
+		/* one td for every 4096 bytes(can be up to 8k) */
 		size += urb->transfer_buffer_length / 4096;
 		/* ...add for any remaining bytes... */
 		if ((urb->transfer_buffer_length % 4096) != 0)
diff --git a/drivers/usb/host/fhci-tds.c b/drivers/usb/host/fhci-tds.c
index 38fe058fbe61..0ea577bfca2a 100644
--- a/drivers/usb/host/fhci-tds.c
+++ b/drivers/usb/host/fhci-tds.c
@@ -40,7 +40,7 @@
 #define TD_RXER		0x0020 /* Rx error or not */
 
 #define TD_NAK		0x0010 /* No ack. */
-#define TD_STAL		0x0008 /* Stall recieved */
+#define TD_STAL		0x0008 /* Stall received */
 #define TD_TO		0x0004 /* time out */
 #define TD_UN		0x0002 /* underrun */
 #define TD_NO		0x0010 /* Rx Non Octet Aligned Packet */
@@ -274,7 +274,7 @@ void fhci_init_ep_registers(struct fhci_usb *usb, struct endpoint *ep,
  * It is also preparing the TDs for new frames. If the Tx interrupts
  * are disabled, the application should call that routine to get
  * confirmation about the submitted frames. Otherwise, the routine is
- * called frome the interrupt service routine during the Tx interrupt.
+ * called from the interrupt service routine during the Tx interrupt.
  * In that case the application is informed by calling the application
  * specific 'fhci_transaction_confirm' routine
  */
@@ -337,7 +337,7 @@ static void fhci_td_transaction_confirm(struct fhci_usb *usb)
 					pkt->status = USB_TD_RX_ER_NONOCT;
 				else
 					fhci_err(usb->fhci, "illegal error "
-						 "occured\n");
+						 "occurred\n");
 			} else if (td_status & TD_NAK)
 				pkt->status = USB_TD_TX_ER_NAK;
 			else if (td_status & TD_TO)
@@ -347,7 +347,7 @@ static void fhci_td_transaction_confirm(struct fhci_usb *usb)
 			else if (td_status & TD_STAL)
 				pkt->status = USB_TD_TX_ER_STALL;
 			else
-				fhci_err(usb->fhci, "illegal error occured\n");
+				fhci_err(usb->fhci, "illegal error occurred\n");
 		} else if ((extra_data & TD_TOK_IN) &&
 				pkt->len > td_length - CRC_SIZE) {
 			pkt->status = USB_TD_RX_DATA_UNDERUN;
diff --git a/drivers/usb/host/fhci.h b/drivers/usb/host/fhci.h
index 71c3caaea4c1..dc6939a44a1a 100644
--- a/drivers/usb/host/fhci.h
+++ b/drivers/usb/host/fhci.h
@@ -82,7 +82,7 @@
 #define USB_TD_RX_ER_NONOCT	0x40000000 /* Tx Non Octet Aligned Packet */
 #define USB_TD_RX_ER_BITSTUFF	0x20000000 /* Frame Aborted-Received pkt */
 #define USB_TD_RX_ER_CRC	0x10000000 /* CRC error */
-#define USB_TD_RX_ER_OVERUN	0x08000000 /* Over - run occured */
+#define USB_TD_RX_ER_OVERUN	0x08000000 /* Over - run occurred */
 #define USB_TD_RX_ER_PID	0x04000000 /* wrong PID received */
 #define USB_TD_RX_DATA_UNDERUN	0x02000000 /* shorter than expected */
 #define USB_TD_RX_DATA_OVERUN	0x01000000 /* longer than expected */
@@ -363,7 +363,7 @@ struct ed {
 struct td {
 	void *data;		 /* a pointer to the data buffer */
 	unsigned int len;	 /* length of the data to be submitted */
-	unsigned int actual_len; /* actual bytes transfered on this td */
+	unsigned int actual_len; /* actual bytes transferred on this td */
 	enum fhci_ta_type type;	 /* transaction type */
 	u8 toggle;		 /* toggle for next trans. within this TD */
 	u16 iso_index;		 /* ISO transaction index */
diff --git a/drivers/usb/host/imx21-hcd.c b/drivers/usb/host/imx21-hcd.c
index 2562e92e3178..af05718bdc73 100644
--- a/drivers/usb/host/imx21-hcd.c
+++ b/drivers/usb/host/imx21-hcd.c
@@ -1323,7 +1323,7 @@ static void process_etds(struct usb_hcd *hcd, struct imx21 *imx21, int sof)
  * (and hence no interrupt occurs).
  * This causes the transfer in question to hang.
  * The kludge below checks for this condition at each SOF and processes any
- * blocked ETDs (after an arbitary 10 frame wait)
+ * blocked ETDs (after an arbitrary 10 frame wait)
  *
  * With a single active transfer the usbtest test suite will run for days
  * without the kludge.
diff --git a/drivers/usb/host/isp116x.h b/drivers/usb/host/isp116x.h
index 12db961acdfb..9a2c400e6090 100644
--- a/drivers/usb/host/isp116x.h
+++ b/drivers/usb/host/isp116x.h
@@ -13,7 +13,7 @@
 
 /* Full speed: max # of bytes to transfer for a single urb
    at a time must be < 1024 && must be multiple of 64.
-   832 allows transfering 4kiB within 5 frames. */
+   832 allows transferring 4kiB within 5 frames. */
 #define MAX_TRANSFER_SIZE_FULLSPEED	832
 
 /* Low speed: there is no reason to schedule in very big
diff --git a/drivers/usb/host/isp1362-hcd.c b/drivers/usb/host/isp1362-hcd.c
index 662cd002adfc..f97570a847ca 100644
--- a/drivers/usb/host/isp1362-hcd.c
+++ b/drivers/usb/host/isp1362-hcd.c
@@ -546,7 +546,7 @@ static void postproc_ep(struct isp1362_hcd *isp1362_hcd, struct isp1362_ep *ep)
 			if (usb_pipecontrol(urb->pipe)) {
 				ep->nextpid = USB_PID_ACK;
 				/* save the data underrun error code for later and
-				 * procede with the status stage
+				 * proceed with the status stage
 				 */
 				urb->actual_length += PTD_GET_COUNT(ptd);
 				BUG_ON(urb->actual_length > urb->transfer_buffer_length);
diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index e7288639edb0..d55723514860 100644
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -162,7 +162,7 @@ static int ohci_urb_enqueue (
 		// case PIPE_INTERRUPT:
 		// case PIPE_BULK:
 		default:
-			/* one TD for every 4096 Bytes (can be upto 8K) */
+			/* one TD for every 4096 Bytes (can be up to 8K) */
 			size += urb->transfer_buffer_length / 4096;
 			/* ... and for any remaining bytes ... */
 			if ((urb->transfer_buffer_length % 4096) != 0)
diff --git a/drivers/usb/host/oxu210hp-hcd.c b/drivers/usb/host/oxu210hp-hcd.c
index 38193f4e980e..4a771f6cc822 100644
--- a/drivers/usb/host/oxu210hp-hcd.c
+++ b/drivers/usb/host/oxu210hp-hcd.c
@@ -2879,7 +2879,7 @@ static int oxu_urb_enqueue(struct usb_hcd *hcd, struct urb *urb,
 	/* Ok, we have more job to do! :) */
 
 	for (i = 0; i < num - 1; i++) {
-		/* Get free micro URB poll till a free urb is recieved */
+		/* Get free micro URB poll till a free urb is received */
 
 		do {
 			murb = (struct urb *) oxu_murb_alloc(oxu);
@@ -2911,7 +2911,7 @@ static int oxu_urb_enqueue(struct usb_hcd *hcd, struct urb *urb,
 
 	/* Last urb requires special handling  */
 
-	/* Get free micro URB poll till a free urb is recieved */
+	/* Get free micro URB poll till a free urb is received */
 	do {
 		murb = (struct urb *) oxu_murb_alloc(oxu);
 		if (!murb)
@@ -3832,7 +3832,7 @@ static int oxu_drv_probe(struct platform_device *pdev)
 		return -EBUSY;
 	}
 
-	ret = set_irq_type(irq, IRQF_TRIGGER_FALLING);
+	ret = irq_set_irq_type(irq, IRQF_TRIGGER_FALLING);
 	if (ret) {
 		dev_err(&pdev->dev, "error setting irq type\n");
 		ret = -EFAULT;
diff --git a/drivers/usb/host/whci/qset.c b/drivers/usb/host/whci/qset.c
index dc0ab8382f5d..d6e175428618 100644
--- a/drivers/usb/host/whci/qset.c
+++ b/drivers/usb/host/whci/qset.c
@@ -739,7 +739,7 @@ static int get_urb_status_from_qtd(struct urb *urb, u32 status)
  * process_inactive_qtd - process an inactive (but not halted) qTD.
  *
  * Update the urb with the transfer bytes from the qTD, if the urb is
- * completely transfered or (in the case of an IN only) the LPF is
+ * completely transferred or (in the case of an IN only) the LPF is
  * set, then the transfer is complete and the urb should be returned
  * to the system.
  */
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index 9a3645fd759b..196e0181b2ed 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -741,7 +741,7 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated)
 	int			retval;
 
 	/* Wait a bit if either of the roothubs need to settle from the
-	 * transistion into bus suspend.
+	 * transition into bus suspend.
 	 */
 	if (time_before(jiffies, xhci->bus_state[0].next_statechange) ||
 			time_before(jiffies,
@@ -2072,7 +2072,7 @@ int xhci_alloc_streams(struct usb_hcd *hcd, struct usb_device *udev,
 		return -EINVAL;
 	}
 	vdev = xhci->devs[udev->slot_id];
-	/* Mark each endpoint as being in transistion, so
+	/* Mark each endpoint as being in transition, so
 	 * xhci_urb_enqueue() will reject all URBs.
 	 */
 	for (i = 0; i < num_eps; i++) {
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index 711de253bc0f..07e263063e37 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -873,7 +873,7 @@ struct xhci_transfer_event {
 #define COMP_CMD_ABORT	25
 /* Stopped - transfer was terminated by a stop endpoint command */
 #define COMP_STOP	26
-/* Same as COMP_EP_STOPPED, but the transfered length in the event is invalid */
+/* Same as COMP_EP_STOPPED, but the transferred length in the event is invalid */
 #define COMP_STOP_INVAL	27
 /* Control Abort Error - Debug Capability - control pipe aborted */
 #define COMP_DBG_ABORT	28
diff --git a/drivers/usb/image/microtek.c b/drivers/usb/image/microtek.c
index c90c89dc0003..a0037961e5bd 100644
--- a/drivers/usb/image/microtek.c
+++ b/drivers/usb/image/microtek.c
@@ -69,7 +69,7 @@
  *	20000513 added IDs for all products supported by Windows driver (john)
  *	20000514 Rewrote mts_scsi_queuecommand to use URBs (john)
  *	20000514 Version 0.0.8j
- *      20000514 Fix reporting of non-existant devices to SCSI layer (john)
+ *      20000514 Fix reporting of non-existent devices to SCSI layer (john)
  *	20000514 Added MTS_DEBUG_INT (john)
  *	20000514 Changed "usb-microtek" to "microtek" for consistency (john)
  *	20000514 Stupid bug fixes (john)
@@ -557,14 +557,14 @@ mts_build_transfer_context(struct scsi_cmnd *srb, struct mts_desc* desc)
 
 	if ( !memcmp( srb->cmnd, mts_read_image_sig, mts_read_image_sig_len )
 ) { 		pipe = usb_rcvbulkpipe(desc->usb_dev,desc->ep_image);
-		MTS_DEBUG( "transfering from desc->ep_image == %d\n",
+		MTS_DEBUG( "transferring from desc->ep_image == %d\n",
 			   (int)desc->ep_image );
 	} else if ( MTS_DIRECTION_IS_IN(srb->cmnd[0]) ) {
 			pipe = usb_rcvbulkpipe(desc->usb_dev,desc->ep_response);
-			MTS_DEBUG( "transfering from desc->ep_response == %d\n",
+			MTS_DEBUG( "transferring from desc->ep_response == %d\n",
 				   (int)desc->ep_response);
 	} else {
-		MTS_DEBUG("transfering to desc->ep_out == %d\n",
+		MTS_DEBUG("transferring to desc->ep_out == %d\n",
 			  (int)desc->ep_out);
 		pipe = usb_sndbulkpipe(desc->usb_dev,desc->ep_out);
 	}
diff --git a/drivers/usb/misc/iowarrior.c b/drivers/usb/misc/iowarrior.c
index e573e4704015..a2190b983f52 100644
--- a/drivers/usb/misc/iowarrior.c
+++ b/drivers/usb/misc/iowarrior.c
@@ -40,7 +40,7 @@
 #ifdef CONFIG_USB_DYNAMIC_MINORS
 #define IOWARRIOR_MINOR_BASE	0
 #else
-#define IOWARRIOR_MINOR_BASE	208	// SKELETON_MINOR_BASE 192 + 16, not offical yet
+#define IOWARRIOR_MINOR_BASE	208	// SKELETON_MINOR_BASE 192 + 16, not official yet
 #endif
 
 /* interrupt input queue size */
diff --git a/drivers/usb/musb/tusb6010.c b/drivers/usb/musb/tusb6010.c
index 2ba3b070ed0b..c47aac4a1f98 100644
--- a/drivers/usb/musb/tusb6010.c
+++ b/drivers/usb/musb/tusb6010.c
@@ -943,7 +943,7 @@ static void tusb_musb_enable(struct musb *musb)
 	musb_writel(tbase, TUSB_INT_CTRL_CONF,
 			TUSB_INT_CTRL_CONF_INT_RELCYC(0));
 
-	set_irq_type(musb->nIrq, IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(musb->nIrq, IRQ_TYPE_LEVEL_LOW);
 
 	/* maybe force into the Default-A OTG state machine */
 	if (!(musb_readl(tbase, TUSB_DEV_OTG_STAT)
diff --git a/drivers/usb/otg/isp1301_omap.c b/drivers/usb/otg/isp1301_omap.c
index 8c6fdef61d1c..e25700f44b6f 100644
--- a/drivers/usb/otg/isp1301_omap.c
+++ b/drivers/usb/otg/isp1301_omap.c
@@ -1531,7 +1531,7 @@ isp1301_probe(struct i2c_client *i2c, const struct i2c_device_id *id)
 	i2c_set_clientdata(i2c, isp);
 	isp->client = i2c;
 
-	/* verify the chip (shouldn't be necesary) */
+	/* verify the chip (shouldn't be necessary) */
 	status = isp1301_get_u16(isp, ISP1301_VENDOR_ID);
 	if (status != I2C_VENDOR_ID_PHILIPS) {
 		dev_dbg(&i2c->dev, "not philips id: %d\n", status);
diff --git a/drivers/usb/otg/langwell_otg.c b/drivers/usb/otg/langwell_otg.c
index 7f9b8cd4514b..e973ff19c55a 100644
--- a/drivers/usb/otg/langwell_otg.c
+++ b/drivers/usb/otg/langwell_otg.c
@@ -580,7 +580,7 @@ static void langwell_otg_add_ktimer(enum langwell_otg_timer_type timers)
 		time = TB_BUS_SUSPEND;
 		break;
 	default:
-		dev_dbg(lnw->dev, "unkown timer, cannot enable it\n");
+		dev_dbg(lnw->dev, "unknown timer, cannot enable it\n");
 		return;
 	}
 
@@ -1381,7 +1381,7 @@ static void langwell_otg_work(struct work_struct *work)
 			} else if (!iotg->hsm.a_bus_req && iotg->otg.host &&
 					iotg->otg.host->b_hnp_enable) {
 				/* It is not safe enough to do a fast
-				 * transistion from A_WAIT_BCON to
+				 * transition from A_WAIT_BCON to
 				 * A_SUSPEND */
 				msleep(10000);
 				if (iotg->hsm.a_bus_req)
diff --git a/drivers/usb/serial/aircable.c b/drivers/usb/serial/aircable.c
index 0db6ace16f7b..aba201cb872c 100644
--- a/drivers/usb/serial/aircable.c
+++ b/drivers/usb/serial/aircable.c
@@ -16,7 +16,7 @@
  * When reading the process is almost equal except that the header starts with
  * 0x00 0x20.
  *
- * The device simply need some stuff to understand data comming from the usb
+ * The device simply need some stuff to understand data coming from the usb
  * buffer: The First and Second byte is used for a Header, the Third and Fourth
  * tells the  device the amount of information the package holds.
  * Packages are 60 bytes long Header Stuff.
@@ -30,7 +30,7 @@
  * one.
  *
  * The driver registers himself with the USB-serial core and the USB Core. I had
- * to implement a probe function agains USB-serial, because other way, the
+ * to implement a probe function against USB-serial, because other way, the
  * driver was attaching himself to both interfaces. I have tryed with different
  * configurations of usb_serial_driver with out exit, only the probe function
  * could handle this correctly.
diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c
index 4df3e0cecbae..0f11afdda134 100644
--- a/drivers/usb/serial/cp210x.c
+++ b/drivers/usb/serial/cp210x.c
@@ -101,7 +101,7 @@ static const struct usb_device_id id_table[] = {
 	{ USB_DEVICE(0x10C4, 0x81F2) }, /* C1007 HF band RFID controller */
 	{ USB_DEVICE(0x10C4, 0x8218) }, /* Lipowsky Industrie Elektronik GmbH, HARP-1 */
 	{ USB_DEVICE(0x10C4, 0x822B) }, /* Modem EDGE(GSM) Comander 2 */
-	{ USB_DEVICE(0x10C4, 0x826B) }, /* Cygnal Integrated Products, Inc., Fasttrax GPS demostration module */
+	{ USB_DEVICE(0x10C4, 0x826B) }, /* Cygnal Integrated Products, Inc., Fasttrax GPS demonstration module */
 	{ USB_DEVICE(0x10C4, 0x8293) }, /* Telegesys ETRX2USB */
 	{ USB_DEVICE(0x10C4, 0x82F9) }, /* Procyon AVS */
 	{ USB_DEVICE(0x10C4, 0x8341) }, /* Siemens MC35PU GPRS Modem */
diff --git a/drivers/usb/serial/cypress_m8.c b/drivers/usb/serial/cypress_m8.c
index 987e9bf7bd02..d9906eb9d16a 100644
--- a/drivers/usb/serial/cypress_m8.c
+++ b/drivers/usb/serial/cypress_m8.c
@@ -35,7 +35,7 @@
  *
  *  Lonnie Mendez <dignome@gmail.com>
  *  04-10-2004
- *	Driver modified to support dynamic line settings.  Various improvments
+ *	Driver modified to support dynamic line settings.  Various improvements
  *      and features.
  *
  *  Neil Whelchel
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index 65967b36365f..a973c7a29d6e 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -17,7 +17,7 @@
  * See Documentation/usb/usb-serial.txt for more information on using this
  * driver
  *
- * See http://ftdi-usb-sio.sourceforge.net for upto date testing info
+ * See http://ftdi-usb-sio.sourceforge.net for up to date testing info
  *	and extra documentation
  *
  * Change entries from 2004 and earlier can be found in versions of this
diff --git a/drivers/usb/serial/io_edgeport.c b/drivers/usb/serial/io_edgeport.c
index f1aedfa7c420..abf095be5753 100644
--- a/drivers/usb/serial/io_edgeport.c
+++ b/drivers/usb/serial/io_edgeport.c
@@ -1981,7 +1981,7 @@ static void process_rcvd_status(struct edgeport_serial *edge_serial,
 	if (code == IOSP_STATUS_OPEN_RSP) {
 		edge_port->txCredits = GET_TX_BUFFER_SIZE(byte3);
 		edge_port->maxTxCredits = edge_port->txCredits;
-		dbg("%s - Port %u Open Response Inital MSR = %02x TxBufferSize = %d", __func__, edge_serial->rxPort, byte2, edge_port->txCredits);
+		dbg("%s - Port %u Open Response Initial MSR = %02x TxBufferSize = %d", __func__, edge_serial->rxPort, byte2, edge_port->txCredits);
 		handle_new_msr(edge_port, byte2);
 
 		/* send the current line settings to the port so we are
diff --git a/drivers/usb/serial/io_edgeport.h b/drivers/usb/serial/io_edgeport.h
index dced7ec65470..ad9c1d47a619 100644
--- a/drivers/usb/serial/io_edgeport.h
+++ b/drivers/usb/serial/io_edgeport.h
@@ -68,7 +68,7 @@ struct comMapper {
 #define PROC_SET_COM_ENTRY		2
 
 
-/* The following sturcture is passed to the write */
+/* The following structure is passed to the write */
 struct procWrite {
 	int	Command;
 	union {
diff --git a/drivers/usb/serial/io_ti.c b/drivers/usb/serial/io_ti.c
index d8434910fa7b..0aac00afb5c8 100644
--- a/drivers/usb/serial/io_ti.c
+++ b/drivers/usb/serial/io_ti.c
@@ -433,7 +433,7 @@ static int write_i2c_mem(struct edgeport_serial *serial,
 
 	/* We can only send a maximum of 1 aligned byte page at a time */
 
-	/* calulate the number of bytes left in the first page */
+	/* calculate the number of bytes left in the first page */
 	write_length = EPROM_PAGE_SIZE -
 				(start_address & (EPROM_PAGE_SIZE - 1));
 
diff --git a/drivers/usb/serial/mct_u232.c b/drivers/usb/serial/mct_u232.c
index d2c019637e45..ba0d28727ccb 100644
--- a/drivers/usb/serial/mct_u232.c
+++ b/drivers/usb/serial/mct_u232.c
@@ -106,7 +106,7 @@ static void mct_u232_break_ctl(struct tty_struct *tty, int break_state);
 static int  mct_u232_tiocmget(struct tty_struct *tty);
 static int  mct_u232_tiocmset(struct tty_struct *tty,
 			unsigned int set, unsigned int clear);
-static int  mct_u232_ioctl(struct tty_struct *tty, struct file *file,
+static int  mct_u232_ioctl(struct tty_struct *tty,
 			unsigned int cmd, unsigned long arg);
 static int  mct_u232_get_icount(struct tty_struct *tty,
 			struct serial_icounter_struct *icount);
@@ -874,7 +874,7 @@ static void mct_u232_unthrottle(struct tty_struct *tty)
 	}
 }
 
-static int  mct_u232_ioctl(struct tty_struct *tty, struct file *file,
+static int  mct_u232_ioctl(struct tty_struct *tty,
 			unsigned int cmd, unsigned long arg)
 {
 	DEFINE_WAIT(wait);
diff --git a/drivers/usb/serial/opticon.c b/drivers/usb/serial/opticon.c
index 201f6096844b..1b5633f46984 100644
--- a/drivers/usb/serial/opticon.c
+++ b/drivers/usb/serial/opticon.c
@@ -116,7 +116,7 @@ static void opticon_read_bulk_callback(struct urb *urb)
 		} else {
 			if ((data[0] == 0x00) && (data[1] == 0x01)) {
 				spin_lock_irqsave(&priv->lock, flags);
-				/* CTS status infomation package */
+				/* CTS status information package */
 				if (data[2] == 0x00)
 					priv->cts = false;
 				else
@@ -413,7 +413,7 @@ static int opticon_tiocmget(struct tty_struct *tty)
 	return result;
 }
 
-static int opticon_tiocmset(struct tty_struct *tty, struct file *file,
+static int opticon_tiocmset(struct tty_struct *tty,
 			   unsigned int set, unsigned int clear)
 {
 	struct usb_serial_port *port = tty->driver_data;
diff --git a/drivers/usb/storage/ene_ub6250.c b/drivers/usb/storage/ene_ub6250.c
index 08e03745e251..0e5aafda4537 100644
--- a/drivers/usb/storage/ene_ub6250.c
+++ b/drivers/usb/storage/ene_ub6250.c
@@ -562,7 +562,7 @@ static int ene_sd_init(struct us_data *us)
 
 	result = ene_send_scsi_cmd(us, FDIR_READ, NULL, 0);
 	if (result != USB_STOR_XFER_GOOD) {
-		US_DEBUGP("Exection SD Init Code Fail !!\n");
+		US_DEBUGP("Execution SD Init Code Fail !!\n");
 		return USB_STOR_TRANSPORT_ERROR;
 	}
 
@@ -581,7 +581,7 @@ static int ene_sd_init(struct us_data *us)
 
 	result = ene_send_scsi_cmd(us, FDIR_READ, &buf, 0);
 	if (result != USB_STOR_XFER_GOOD) {
-		US_DEBUGP("Exection SD Init Code Fail !!\n");
+		US_DEBUGP("Execution SD Init Code Fail !!\n");
 		return USB_STOR_TRANSPORT_ERROR;
 	}
 
diff --git a/drivers/usb/storage/isd200.c b/drivers/usb/storage/isd200.c
index 6b9982cd5423..09e52ba47ddf 100644
--- a/drivers/usb/storage/isd200.c
+++ b/drivers/usb/storage/isd200.c
@@ -1510,7 +1510,7 @@ static int isd200_Initialization(struct us_data *us)
  * Protocol and Transport for the ISD200 ASIC
  *
  * This protocol and transport are for ATA devices connected to an ISD200
- * ASIC.  An ATAPI device that is conected as a slave device will be
+ * ASIC.  An ATAPI device that is connected as a slave device will be
  * detected in the driver initialization function and the protocol will
  * be changed to an ATAPI protocol (Transparent SCSI).
  *
diff --git a/drivers/usb/storage/scsiglue.c b/drivers/usb/storage/scsiglue.c
index 689ee1fb702a..13b8bcdf3dba 100644
--- a/drivers/usb/storage/scsiglue.c
+++ b/drivers/usb/storage/scsiglue.c
@@ -123,7 +123,7 @@ static int slave_configure(struct scsi_device *sdev)
 {
 	struct us_data *us = host_to_us(sdev->host);
 
-	/* Many devices have trouble transfering more than 32KB at a time,
+	/* Many devices have trouble transferring more than 32KB at a time,
 	 * while others have trouble with more than 64K. At this time we
 	 * are limiting both to 32K (64 sectores).
 	 */
diff --git a/drivers/usb/storage/shuttle_usbat.c b/drivers/usb/storage/shuttle_usbat.c
index bd3f415893d8..0b00091d2ae9 100644
--- a/drivers/usb/storage/shuttle_usbat.c
+++ b/drivers/usb/storage/shuttle_usbat.c
@@ -340,7 +340,7 @@ static int usbat_check_status(struct us_data *us)
 }
 
 /*
- * Stores critical information in internal registers in prepartion for the execution
+ * Stores critical information in internal registers in preparation for the execution
  * of a conditional usbat_read_blocks or usbat_write_blocks call.
  */
 static int usbat_set_shuttle_features(struct us_data *us,
diff --git a/drivers/usb/wusbcore/crypto.c b/drivers/usb/wusbcore/crypto.c
index 827c87f10cc5..7e4bf95f8f7b 100644
--- a/drivers/usb/wusbcore/crypto.c
+++ b/drivers/usb/wusbcore/crypto.c
@@ -180,7 +180,7 @@ static void bytewise_xor(void *_bo, const void *_bi1, const void *_bi2,
  *     using the 14 bytes of @a to fill up
  *     b1.{mac_header,e0,security_reserved,padding}.
  *
- * NOTE: The definiton of l(a) in WUSB1.0[6.5] vs the definition of
+ * NOTE: The definition of l(a) in WUSB1.0[6.5] vs the definition of
  *       l(m) is orthogonal, they bear no relationship, so it is not
  *       in conflict with the parameter's relation that
  *       WUSB1.0[6.4.2]) defines.
@@ -272,7 +272,7 @@ static int wusb_ccm_mac(struct crypto_blkcipher *tfm_cbc,
 
 	/* Now we crypt the MIC Tag (*iv) with Ax -- values per WUSB1.0[6.5]
 	 * The procedure is to AES crypt the A0 block and XOR the MIC
-	 * Tag agains it; we only do the first 8 bytes and place it
+	 * Tag against it; we only do the first 8 bytes and place it
 	 * directly in the destination buffer.
 	 *
 	 * POS Crypto API: size is assumed to be AES's block size.
diff --git a/drivers/usb/wusbcore/reservation.c b/drivers/usb/wusbcore/reservation.c
index 4ed97360c046..6f4fafdc2401 100644
--- a/drivers/usb/wusbcore/reservation.c
+++ b/drivers/usb/wusbcore/reservation.c
@@ -71,7 +71,7 @@ static void wusbhc_rsv_complete_cb(struct uwb_rsv *rsv)
 
 /**
  * wusbhc_rsv_establish - establish a reservation for the cluster
- * @wusbhc: the WUSB HC requesting a bandwith reservation
+ * @wusbhc: the WUSB HC requesting a bandwidth reservation
  */
 int wusbhc_rsv_establish(struct wusbhc *wusbhc)
 {
diff --git a/drivers/usb/wusbcore/rh.c b/drivers/usb/wusbcore/rh.c
index c175b7300c73..39de3900ad20 100644
--- a/drivers/usb/wusbcore/rh.c
+++ b/drivers/usb/wusbcore/rh.c
@@ -133,7 +133,7 @@ static int wusbhc_rh_port_reset(struct wusbhc *wusbhc, u8 port_idx)
  *           big of a problem [and we can't make it an spinlock
  *           because other parts need to take it and sleep] .
  *
- *           @usb_hcd is refcounted, so it won't dissapear under us
+ *           @usb_hcd is refcounted, so it won't disappear under us
  *           and before killing a host, the polling of the root hub
  *           would be stopped anyway.
  */
diff --git a/drivers/usb/wusbcore/wa-rpipe.c b/drivers/usb/wusbcore/wa-rpipe.c
index 8cb9d80207fa..ca80171f42c6 100644
--- a/drivers/usb/wusbcore/wa-rpipe.c
+++ b/drivers/usb/wusbcore/wa-rpipe.c
@@ -24,7 +24,7 @@
  *
  * RPIPE
  *
- *   Targetted at different downstream endpoints
+ *   Targeted at different downstream endpoints
  *
  *   Descriptor: use to config the remote pipe.
  *
diff --git a/drivers/usb/wusbcore/wa-xfer.c b/drivers/usb/wusbcore/wa-xfer.c
index 84b744c428a4..6ccd93a9b909 100644
--- a/drivers/usb/wusbcore/wa-xfer.c
+++ b/drivers/usb/wusbcore/wa-xfer.c
@@ -61,7 +61,7 @@
  *
  *     Two methods it could be done:
  *
- *     (a) set up a timer everytime an rpipe's use count drops to 1
+ *     (a) set up a timer every time an rpipe's use count drops to 1
  *         (which means unused) or when a transfer ends. Reset the
  *         timer when a xfer is queued. If the timer expires, release
  *         the rpipe [see rpipe_ep_disable()].
@@ -140,7 +140,7 @@ struct wa_xfer {
 
 	struct wahc *wa;		/* Wire adapter we are plugged to */
 	struct usb_host_endpoint *ep;
-	struct urb *urb;		/* URB we are transfering for */
+	struct urb *urb;		/* URB we are transferring for */
 	struct wa_seg **seg;		/* transfer segments */
 	u8 segs, segs_submitted, segs_done;
 	unsigned is_inbound:1;
@@ -161,7 +161,7 @@ static inline void wa_xfer_init(struct wa_xfer *xfer)
 }
 
 /*
- * Destory a transfer structure
+ * Destroy a transfer structure
  *
  * Note that the xfer->seg[index] thingies follow the URB life cycle,
  * so we need to put them, not free them.
@@ -494,7 +494,7 @@ static void __wa_xfer_setup_hdr0(struct wa_xfer *xfer,
  * function does almost the same thing and they work closely
  * together.
  *
- * If the seg request has failed but this DTO phase has suceeded,
+ * If the seg request has failed but this DTO phase has succeeded,
  * wa_seg_cb() has already failed the segment and moved the
  * status to WA_SEG_ERROR, so this will go through 'case 0' and
  * effectively do nothing.
diff --git a/drivers/usb/wusbcore/wusbhc.h b/drivers/usb/wusbcore/wusbhc.h
index 6bd426b7ec07..3a2d09162e70 100644
--- a/drivers/usb/wusbcore/wusbhc.h
+++ b/drivers/usb/wusbcore/wusbhc.h
@@ -231,7 +231,7 @@ struct wusb_port {
  *
  *    Most of the times when you need to use it, it will be non-NULL,
  *    so there is no real need to check for it (wusb_dev will
- *    dissapear before usb_dev).
+ *    disappear before usb_dev).
  *
  *  - The following fields need to be filled out before calling
  *    wusbhc_create(): ports_max, mmcies_max, mmcie_{add,rm}.
diff --git a/drivers/uwb/driver.c b/drivers/uwb/driver.c
index 08bd6dbfd4a6..3e5454aba5d4 100644
--- a/drivers/uwb/driver.c
+++ b/drivers/uwb/driver.c
@@ -61,7 +61,7 @@
 
 
 /**
- * If a beacon dissapears for longer than this, then we consider the
+ * If a beacon disappears for longer than this, then we consider the
  * device who was represented by that beacon to be gone.
  *
  * ECMA-368[17.2.3, last para] establishes that a device must not
diff --git a/drivers/uwb/drp.c b/drivers/uwb/drp.c
index a8d83e25e3b6..3fbcf789dfaa 100644
--- a/drivers/uwb/drp.c
+++ b/drivers/uwb/drp.c
@@ -27,7 +27,7 @@
 
 /* DRP Conflict Actions ([ECMA-368 2nd Edition] 17.4.6) */
 enum uwb_drp_conflict_action {
-	/* Reservation is mantained, no action needed */
+	/* Reservation is maintained, no action needed */
 	UWB_DRP_CONFLICT_MANTAIN = 0,
 	
 	/* the device shall not transmit frames in conflicting MASs in
@@ -741,12 +741,12 @@ void uwb_drp_process_all(struct uwb_rc *rc, struct uwb_rc_evt_drp *drp_evt,
  * DRP notifications can occur for three different reasons:
  *
  * - UWB_DRP_NOTIF_DRP_IE_RECVD: one or more DRP IEs with the RC as
- *   the target or source have been recieved.
+ *   the target or source have been received.
  *
  *   These DRP IEs could be new or for an existing reservation.
  *
  *   If the DRP IE for an existing reservation ceases to be to
- *   recieved for at least mMaxLostBeacons, the reservation should be
+ *   received for at least mMaxLostBeacons, the reservation should be
  *   considered to be terminated.  Note that the TERMINATE reason (see
  *   below) may not always be signalled (e.g., the remote device has
  *   two or more reservations established with the RC).
diff --git a/drivers/uwb/lc-rc.c b/drivers/uwb/lc-rc.c
index b0091c771b9a..b4395f41a007 100644
--- a/drivers/uwb/lc-rc.c
+++ b/drivers/uwb/lc-rc.c
@@ -168,7 +168,7 @@ int uwb_rc_mac_addr_setup(struct uwb_rc *rc)
 	}
 
 	if (uwb_mac_addr_unset(&addr) || uwb_mac_addr_bcast(&addr)) {
-		addr.data[0] = 0x02; /* locally adminstered and unicast */
+		addr.data[0] = 0x02; /* locally administered and unicast */
 		get_random_bytes(&addr.data[1], sizeof(addr.data)-1);
 
 		result = uwb_rc_mac_addr_set(rc, &addr);
diff --git a/drivers/uwb/reset.c b/drivers/uwb/reset.c
index 27849292b552..3de630b0f691 100644
--- a/drivers/uwb/reset.c
+++ b/drivers/uwb/reset.c
@@ -52,7 +52,7 @@ const char *__strerror[] = {
 	"cancelled",
 	"invalid state",
 	"invalid size",
-	"ack not recieved",
+	"ack not received",
 	"no more asie notification",
 };
 
diff --git a/drivers/uwb/umc-dev.c b/drivers/uwb/umc-dev.c
index ccd2184e05d2..b2948ec57878 100644
--- a/drivers/uwb/umc-dev.c
+++ b/drivers/uwb/umc-dev.c
@@ -78,7 +78,7 @@ EXPORT_SYMBOL_GPL(umc_device_register);
  * First we unregister the device, make sure the driver can do it's
  * resource release thing and then we try to release any left over
  * resources. We take a ref to the device, to make sure it doesn't
- * dissapear under our feet.
+ * disappear under our feet.
  */
 void umc_device_unregister(struct umc_dev *umc)
 {
diff --git a/drivers/video/atmel_lcdfb.c b/drivers/video/atmel_lcdfb.c
index ccecf9974587..4484c721f0f9 100644
--- a/drivers/video/atmel_lcdfb.c
+++ b/drivers/video/atmel_lcdfb.c
@@ -637,7 +637,7 @@ static inline unsigned int chan_to_field(unsigned int chan, const struct fb_bitf
  *  	magnitude which needs to be scaled in this function for the hardware.
  *	Things to take into consideration are how many color registers, if
  *	any, are supported with the current color visual. With truecolor mode
- *	no color palettes are supported. Here a psuedo palette is created
+ *	no color palettes are supported. Here a pseudo palette is created
  *	which we store the value in pseudo_palette in struct fb_info. For
  *	pseudocolor mode we have a limited color palette. To deal with this
  *	we can program what color is displayed for a particular pixel value.
diff --git a/drivers/video/aty/atyfb_base.c b/drivers/video/aty/atyfb_base.c
index d437b3daf1f5..ebb893c49e90 100644
--- a/drivers/video/aty/atyfb_base.c
+++ b/drivers/video/aty/atyfb_base.c
@@ -3124,12 +3124,12 @@ static int __devinit atyfb_setup_sparc(struct pci_dev *pdev,
 		M = pll_regs[2];
 
 		/*
-		 * PLL Feedback Divider N (Dependant on CLOCK_CNTL):
+		 * PLL Feedback Divider N (Dependent on CLOCK_CNTL):
 		 */
 		N = pll_regs[7 + (clock_cntl & 3)];
 
 		/*
-		 * PLL Post Divider P (Dependant on CLOCK_CNTL):
+		 * PLL Post Divider P (Dependent on CLOCK_CNTL):
 		 */
 		P = 1 << (pll_regs[6] >> ((clock_cntl & 3) << 1));
 
diff --git a/drivers/video/aty/mach64_cursor.c b/drivers/video/aty/mach64_cursor.c
index 2ba8b3c421a1..46f72ed53510 100644
--- a/drivers/video/aty/mach64_cursor.c
+++ b/drivers/video/aty/mach64_cursor.c
@@ -51,7 +51,7 @@
  * to a larger number and saturate CUR_HORZ_POSN to zero.
  *
  * if Y becomes negative, CUR_VERT_OFFSET must be adjusted to a larger number,
- * CUR_OFFSET must be adjusted to a point to the appropraite line in the cursor
+ * CUR_OFFSET must be adjusted to a point to the appropriate line in the cursor
  * definitation and CUR_VERT_POSN must be saturated to zero.
  */
 
diff --git a/drivers/video/au1200fb.c b/drivers/video/au1200fb.c
index 4ea187d93768..5dff32ac8044 100644
--- a/drivers/video/au1200fb.c
+++ b/drivers/video/au1200fb.c
@@ -1572,7 +1572,7 @@ static int au1200fb_init_fbinfo(struct au1200fb_device *fbdev)
 	/* Copy monitor specs from panel data */
 	/* fixme: we're setting up LCD controller windows, so these dont give a
 	damn as to what the monitor specs are (the panel itself does, but that
-	isnt done here...so maybe need a generic catchall monitor setting??? */
+	isn't done here...so maybe need a generic catchall monitor setting??? */
 	memcpy(&fbi->monspecs, &panel->monspecs, sizeof(struct fb_monspecs));
 
 	/* We first try the user mode passed in argument. If that failed,
diff --git a/drivers/video/backlight/corgi_lcd.c b/drivers/video/backlight/corgi_lcd.c
index af6098396fe6..c6533bad26f8 100644
--- a/drivers/video/backlight/corgi_lcd.c
+++ b/drivers/video/backlight/corgi_lcd.c
@@ -109,7 +109,7 @@ static unsigned long corgibl_flags;
 #define CORGIBL_BATTLOW       0x02
 
 /*
- * This is only a psuedo I2C interface. We can't use the standard kernel
+ * This is only a pseudo I2C interface. We can't use the standard kernel
  * routines as the interface is write only. We just assume the data is acked...
  */
 static void lcdtg_ssp_i2c_send(struct corgi_lcd *lcd, uint8_t data)
diff --git a/drivers/video/backlight/locomolcd.c b/drivers/video/backlight/locomolcd.c
index bbca3127071e..be20b5cbe26c 100644
--- a/drivers/video/backlight/locomolcd.c
+++ b/drivers/video/backlight/locomolcd.c
@@ -6,7 +6,7 @@
  * GPL v2
  *
  * This driver assumes single CPU. That's okay, because collie is
- * slightly old hardware, and noone is going to retrofit second CPU to
+ * slightly old hardware, and no one is going to retrofit second CPU to
  * old PDA.
  */
 
diff --git a/drivers/video/bfin_adv7393fb.h b/drivers/video/bfin_adv7393fb.h
index 8c7f9e4fc6eb..cd591b5152a5 100644
--- a/drivers/video/bfin_adv7393fb.h
+++ b/drivers/video/bfin_adv7393fb.h
@@ -87,12 +87,12 @@ static const u8 init_NTSC_TESTPATTERN[] = {
 
 static const u8 init_NTSC[] = {
 	0x00, 0x1E,	/* Power up all DACs and PLL */
-	0xC3, 0x26,	/* Program RGB->YCrCb Color Space convertion matrix */
-	0xC5, 0x12,	/* Program RGB->YCrCb Color Space convertion matrix */
-	0xC2, 0x4A,	/* Program RGB->YCrCb Color Space convertion matrix */
-	0xC6, 0x5E,	/* Program RGB->YCrCb Color Space convertion matrix */
-	0xBD, 0x19,	/* Program RGB->YCrCb Color Space convertion matrix */
-	0xBF, 0x42,	/* Program RGB->YCrCb Color Space convertion matrix */
+	0xC3, 0x26,	/* Program RGB->YCrCb Color Space conversion matrix */
+	0xC5, 0x12,	/* Program RGB->YCrCb Color Space conversion matrix */
+	0xC2, 0x4A,	/* Program RGB->YCrCb Color Space conversion matrix */
+	0xC6, 0x5E,	/* Program RGB->YCrCb Color Space conversion matrix */
+	0xBD, 0x19,	/* Program RGB->YCrCb Color Space conversion matrix */
+	0xBF, 0x42,	/* Program RGB->YCrCb Color Space conversion matrix */
 	0x8C, 0x1F,	/* NTSC Subcarrier Frequency */
 	0x8D, 0x7C,	/* NTSC Subcarrier Frequency */
 	0x8E, 0xF0,	/* NTSC Subcarrier Frequency */
@@ -109,12 +109,12 @@ static const u8 init_NTSC[] = {
 
 static const u8 init_PAL[] = {
 	0x00, 0x1E,	/* Power up all DACs and PLL */
-	0xC3, 0x26,	/* Program RGB->YCrCb Color Space convertion matrix */
-	0xC5, 0x12,	/* Program RGB->YCrCb Color Space convertion matrix */
-	0xC2, 0x4A,	/* Program RGB->YCrCb Color Space convertion matrix */
-	0xC6, 0x5E,	/* Program RGB->YCrCb Color Space convertion matrix */
-	0xBD, 0x19,	/* Program RGB->YCrCb Color Space convertion matrix */
-	0xBF, 0x42,	/* Program RGB->YCrCb Color Space convertion matrix */
+	0xC3, 0x26,	/* Program RGB->YCrCb Color Space conversion matrix */
+	0xC5, 0x12,	/* Program RGB->YCrCb Color Space conversion matrix */
+	0xC2, 0x4A,	/* Program RGB->YCrCb Color Space conversion matrix */
+	0xC6, 0x5E,	/* Program RGB->YCrCb Color Space conversion matrix */
+	0xBD, 0x19,	/* Program RGB->YCrCb Color Space conversion matrix */
+	0xBF, 0x42,	/* Program RGB->YCrCb Color Space conversion matrix */
 	0x8C, 0xCB,	/* PAL Subcarrier Frequency */
 	0x8D, 0x8A,	/* PAL Subcarrier Frequency */
 	0x8E, 0x09,	/* PAL Subcarrier Frequency */
diff --git a/drivers/video/console/font_mini_4x6.c b/drivers/video/console/font_mini_4x6.c
index a19a7f33133e..fa6e698e63c4 100644
--- a/drivers/video/console/font_mini_4x6.c
+++ b/drivers/video/console/font_mini_4x6.c
@@ -1,5 +1,5 @@
 
-/* Hand composed "Miniscule" 4x6 font, with binary data generated using
+/* Hand composed "Minuscule" 4x6 font, with binary data generated using
  * Perl stub.
  *
  * Use 'perl -x mini_4x6.c < mini_4x6.c > new_version.c' to regenerate
diff --git a/drivers/video/da8xx-fb.c b/drivers/video/da8xx-fb.c
index 8d61ef96eedd..8b7d47386f39 100644
--- a/drivers/video/da8xx-fb.c
+++ b/drivers/video/da8xx-fb.c
@@ -763,7 +763,7 @@ static int fb_wait_for_vsync(struct fb_info *info)
 
 	/*
 	 * Set flag to 0 and wait for isr to set to 1. It would seem there is a
-	 * race condition here where the ISR could have occured just before or
+	 * race condition here where the ISR could have occurred just before or
 	 * just after this set. But since we are just coarsely waiting for
 	 * a frame to complete then that's OK. i.e. if the frame completed
 	 * just before this code executed then we have to wait another full
diff --git a/drivers/video/display/display-sysfs.c b/drivers/video/display/display-sysfs.c
index f6a09ab0dac6..0c647d7af0ee 100644
--- a/drivers/video/display/display-sysfs.c
+++ b/drivers/video/display/display-sysfs.c
@@ -182,7 +182,7 @@ void display_device_unregister(struct display_device *ddev)
 	mutex_lock(&ddev->lock);
 	device_unregister(ddev->dev);
 	mutex_unlock(&ddev->lock);
-	// Mark device index as avaliable
+	// Mark device index as available
 	mutex_lock(&allocated_dsp_lock);
 	idr_remove(&allocated_dsp, ddev->idx);
 	mutex_unlock(&allocated_dsp_lock);
diff --git a/drivers/video/ep93xx-fb.c b/drivers/video/ep93xx-fb.c
index b358d045f130..cbdb1bd77c21 100644
--- a/drivers/video/ep93xx-fb.c
+++ b/drivers/video/ep93xx-fb.c
@@ -456,7 +456,7 @@ static int __init ep93xxfb_alloc_videomem(struct fb_info *info)
 	 * There is a bug in the ep93xx framebuffer which causes problems
 	 * if bit 27 of the physical address is set.
 	 * See: http://marc.info/?l=linux-arm-kernel&m=110061245502000&w=2
-	 * There does not seem to be any offical errata for this, but I
+	 * There does not seem to be any official errata for this, but I
 	 * have confirmed the problem exists on my hardware (ep9315) at
 	 * least.
 	 */
diff --git a/drivers/video/fb-puv3.c b/drivers/video/fb-puv3.c
index dbd2dc4745d1..27f2c57e06e9 100644
--- a/drivers/video/fb-puv3.c
+++ b/drivers/video/fb-puv3.c
@@ -13,7 +13,6 @@
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/errno.h>
-#include <linux/vmalloc.h>
 #include <linux/platform_device.h>
 #include <linux/clk.h>
 #include <linux/fb.h>
@@ -531,7 +530,7 @@ static int unifb_set_par(struct fb_info *info)
 		return -EINVAL;
 	}
 
-	writel(PKUNITY_UNIGFX_MMAP_BASE, UDE_FSA);
+	writel(info->fix.smem_start, UDE_FSA);
 	writel(info->var.yres, UDE_LS);
 	writel(get_line_length(info->var.xres,
 			info->var.bits_per_pixel) >> 3, UDE_PS);
@@ -680,13 +679,27 @@ static int unifb_probe(struct platform_device *dev)
 	struct fb_info *info;
 	u32 unifb_regs[UNIFB_REGS_NUM];
 	int retval = -ENOMEM;
-	struct resource *iomem, *mapmem;
+	struct resource *iomem;
+	void *videomemory;
+
+	videomemory = (void *)__get_free_pages(GFP_KERNEL | __GFP_COMP,
+				get_order(UNIFB_MEMSIZE));
+	if (!videomemory)
+		goto err;
+
+	memset(videomemory, 0, UNIFB_MEMSIZE);
+
+	unifb_fix.smem_start = virt_to_phys(videomemory);
+	unifb_fix.smem_len = UNIFB_MEMSIZE;
+
+	iomem = platform_get_resource(dev, IORESOURCE_MEM, 0);
+	unifb_fix.mmio_start = iomem->start;
 
 	info = framebuffer_alloc(sizeof(u32)*256, &dev->dev);
 	if (!info)
 		goto err;
 
-	info->screen_base = (char __iomem *)KUSER_UNIGFX_BASE;
+	info->screen_base = (char __iomem *)videomemory;
 	info->fbops = &unifb_ops;
 
 	retval = fb_find_mode(&info->var, info, NULL,
@@ -695,13 +708,6 @@ static int unifb_probe(struct platform_device *dev)
 	if (!retval || (retval == 4))
 		info->var = unifb_default;
 
-	iomem = platform_get_resource(dev, IORESOURCE_MEM, 0);
-	unifb_fix.mmio_start = iomem->start;
-
-	mapmem = platform_get_resource(dev, IORESOURCE_MEM, 1);
-	unifb_fix.smem_start = mapmem->start;
-	unifb_fix.smem_len = UNIFB_MEMSIZE;
-
 	info->fix = unifb_fix;
 	info->pseudo_palette = info->par;
 	info->par = NULL;
diff --git a/drivers/video/fbsysfs.c b/drivers/video/fbsysfs.c
index f4a32779168b..04251ce89184 100644
--- a/drivers/video/fbsysfs.c
+++ b/drivers/video/fbsysfs.c
@@ -33,7 +33,7 @@
  * for driver private data (info->par). info->par (if any) will be
  * aligned to sizeof(long).
  *
- * Returns the new structure, or NULL if an error occured.
+ * Returns the new structure, or NULL if an error occurred.
  *
  */
 struct fb_info *framebuffer_alloc(size_t size, struct device *dev)
diff --git a/drivers/video/fm2fb.c b/drivers/video/fm2fb.c
index 1b0feb8e7244..d0533b7aad79 100644
--- a/drivers/video/fm2fb.c
+++ b/drivers/video/fm2fb.c
@@ -45,7 +45,7 @@
  *	buffer needs an amount of memory of 1.769.472 bytes which
  *	is near to 2 MByte (the allocated address space of Zorro2).
  *	The memory is channel interleaved. That means every channel
- *	owns four VRAMs. Unfortunatly most FrameMasters II are
+ *	owns four VRAMs. Unfortunately most FrameMasters II are
  *	not assembled with memory for the alpha channel. In this
  *	case it could be possible to add the frame buffer into the
  *	normal memory pool.
diff --git a/drivers/video/fsl-diu-fb.c b/drivers/video/fsl-diu-fb.c
index 9048f87fa8c1..bedf5be27f05 100644
--- a/drivers/video/fsl-diu-fb.c
+++ b/drivers/video/fsl-diu-fb.c
@@ -882,7 +882,7 @@ static inline __u32 CNVT_TOHW(__u32 val, __u32 width)
  * which needs to be scaled in this function for the hardware. Things to take
  * into consideration are how many color registers, if any, are supported with
  * the current color visual. With truecolor mode no color palettes are
- * supported. Here a psuedo palette is created which we store the value in
+ * supported. Here a pseudo palette is created which we store the value in
  * pseudo_palette in struct fb_info. For pseudocolor mode we have a limited
  * color palette.
  */
diff --git a/drivers/video/gbefb.c b/drivers/video/gbefb.c
index 933899dca33a..7e7b7a9ba274 100644
--- a/drivers/video/gbefb.c
+++ b/drivers/video/gbefb.c
@@ -721,7 +721,7 @@ static int gbefb_set_par(struct fb_info *info)
 
 	   Tiles have the advantage that they can be allocated individually in
 	   memory. However, this mapping is not linear at all, which is not
-	   really convienient. In order to support linear addressing, the GBE
+	   really convenient. In order to support linear addressing, the GBE
 	   DMA hardware is fooled into thinking the screen is only one tile
 	   large and but has a greater height, so that the DMA transfer covers
 	   the same region.
diff --git a/drivers/video/geode/lxfb.h b/drivers/video/geode/lxfb.h
index be8ccb47ebe0..cfcd8090f313 100644
--- a/drivers/video/geode/lxfb.h
+++ b/drivers/video/geode/lxfb.h
@@ -117,7 +117,7 @@ enum gp_registers {
 };
 
 #define GP_BLT_STATUS_CE		(1 << 4)	/* cmd buf empty */
-#define GP_BLT_STATUS_PB		(1 << 0)	/* primative busy */
+#define GP_BLT_STATUS_PB		(1 << 0)	/* primitive busy */
 
 
 /* Display Controller registers (table 6-47 from the data book) */
diff --git a/drivers/video/i810/i810_accel.c b/drivers/video/i810/i810_accel.c
index f5bedee4310a..7672d2ea9b35 100644
--- a/drivers/video/i810/i810_accel.c
+++ b/drivers/video/i810/i810_accel.c
@@ -112,7 +112,7 @@ static inline int wait_for_engine_idle(struct fb_info *info)
  * @par: pointer to i810fb_par structure
  *
  * DESCRIPTION:
- * Checks/waits for sufficent space in ringbuffer of size
+ * Checks/waits for sufficient space in ringbuffer of size
  * space.  Returns the tail of the buffer
  */ 
 static inline u32 begin_iring(struct fb_info *info, u32 space)
diff --git a/drivers/video/kyro/STG4000OverlayDevice.c b/drivers/video/kyro/STG4000OverlayDevice.c
index a8c9713413e6..0aeeaa10708b 100644
--- a/drivers/video/kyro/STG4000OverlayDevice.c
+++ b/drivers/video/kyro/STG4000OverlayDevice.c
@@ -417,7 +417,7 @@ int SetOverlayViewPort(volatile STG4000REG __iomem *pSTGReg,
 	/***************** Horizontal decimation/scaling ***************************/
 
 	/*
-	 * Now we handle the horizontal case, this is a simplified verison of
+	 * Now we handle the horizontal case, this is a simplified version of
 	 * the vertical case in that we decimate by factors of 2.  as we are
 	 * working in words we should always be able to decimate by these
 	 * factors.  as we always have to have a buffer which is aligned to a
diff --git a/drivers/video/kyro/STG4000Reg.h b/drivers/video/kyro/STG4000Reg.h
index 244549e61368..5d6269882589 100644
--- a/drivers/video/kyro/STG4000Reg.h
+++ b/drivers/video/kyro/STG4000Reg.h
@@ -16,7 +16,7 @@
 
 /*
  * Macros that access memory mapped card registers in PCI space
- * Add an appropraite section for your OS or processor architecture.
+ * Add an appropriate section for your OS or processor architecture.
  */
 #if defined(__KERNEL__)
 #include <asm/page.h>
diff --git a/drivers/video/matrox/matroxfb_DAC1064.h b/drivers/video/matrox/matroxfb_DAC1064.h
index c6ed7801efe2..1e6e45b57b78 100644
--- a/drivers/video/matrox/matroxfb_DAC1064.h
+++ b/drivers/video/matrox/matroxfb_DAC1064.h
@@ -46,7 +46,7 @@ void DAC1064_global_restore(struct matrox_fb_info *minfo);
 #define      M1064_XDVICLKCTRL_DVILOOPCTL       0x30
 	/* CRTC2 pixel clock allowed to(0)/blocked from(1) driving CRTC2 */
 #define      M1064_XDVICLKCTRL_C2DVICLKEN       0x40
-	/* P1PLL loop filter bandwith selection */
+	/* P1PLL loop filter bandwidth selection */
 #define      M1064_XDVICLKCTRL_P1LOOPBWDTCTL    0x80
 #define M1064_XCURCOL0RED	0x08
 #define M1064_XCURCOL0GREEN	0x09
diff --git a/drivers/video/matrox/matroxfb_Ti3026.c b/drivers/video/matrox/matroxfb_Ti3026.c
index 835aaaae6b96..9a44cec394b5 100644
--- a/drivers/video/matrox/matroxfb_Ti3026.c
+++ b/drivers/video/matrox/matroxfb_Ti3026.c
@@ -387,7 +387,7 @@ static int Ti3026_init(struct matrox_fb_info *minfo, struct my_timming *m)
 			hw->DACreg[POS3026_XMISCCTRL] = TVP3026_XMISCCTRL_DAC_PUP | TVP3026_XMISCCTRL_DAC_8BIT | TVP3026_XMISCCTRL_PSEL_DIS | TVP3026_XMISCCTRL_PSEL_LOW;
 			break;
 		case 16:
-			/* XLATCHCTRL should be _4_1 / _2_1... Why is not? (_2_1 is used everytime) */
+			/* XLATCHCTRL should be _4_1 / _2_1... Why is not? (_2_1 is used every time) */
 			hw->DACreg[POS3026_XTRUECOLORCTRL] = (minfo->fbcon.var.green.length == 5) ? (TVP3026_XTRUECOLORCTRL_DIRECTCOLOR | TVP3026_XTRUECOLORCTRL_ORGB_1555) : (TVP3026_XTRUECOLORCTRL_DIRECTCOLOR | TVP3026_XTRUECOLORCTRL_RGB_565);
 			hw->DACreg[POS3026_XMUXCTRL] = muxctrl | TVP3026_XMUXCTRL_PIXEL_16BIT;
 			hw->DACreg[POS3026_XCLKCTRL] = TVP3026_XCLKCTRL_SRC_PLL | TVP3026_XCLKCTRL_DIV2;
@@ -399,7 +399,7 @@ static int Ti3026_init(struct matrox_fb_info *minfo, struct my_timming *m)
 			hw->DACreg[POS3026_XCLKCTRL] = TVP3026_XCLKCTRL_SRC_PLL | TVP3026_XCLKCTRL_DIV4;
 			break;
 		case 32:
-			/* XLATCHCTRL should be _2_1 / _1_1... Why is not? (_2_1 is used everytime) */
+			/* XLATCHCTRL should be _2_1 / _1_1... Why is not? (_2_1 is used every time) */
 			hw->DACreg[POS3026_XMUXCTRL] = muxctrl | TVP3026_XMUXCTRL_PIXEL_32BIT;
 			break;
 		default:
diff --git a/drivers/video/matrox/matroxfb_base.c b/drivers/video/matrox/matroxfb_base.c
index 5ce6fa6e59f0..44bf8d4a216b 100644
--- a/drivers/video/matrox/matroxfb_base.c
+++ b/drivers/video/matrox/matroxfb_base.c
@@ -621,7 +621,7 @@ static int matroxfb_decode_var(const struct matrox_fb_info *minfo,
 		var->yoffset = var->yres_virtual - var->yres;
 
 	if (bpp == 16 && var->green.length == 5) {
-		bpp--; /* an artifical value - 15 */
+		bpp--; /* an artificial value - 15 */
 	}
 
 	for (rgbt = table; rgbt->bpp < bpp; rgbt++);
diff --git a/drivers/video/matrox/matroxfb_base.h b/drivers/video/matrox/matroxfb_base.h
index f96a471cb1a8..11ed57bb704e 100644
--- a/drivers/video/matrox/matroxfb_base.h
+++ b/drivers/video/matrox/matroxfb_base.h
@@ -12,7 +12,7 @@
 #undef MATROXFB_DEBUG
 
 /* heavy debugging: */
-/* -- logs putc[s], so everytime a char is displayed, it's logged */
+/* -- logs putc[s], so every time a char is displayed, it's logged */
 #undef MATROXFB_DEBUG_HEAVY
 
 /* This one _could_ cause infinite loops */
diff --git a/drivers/video/nuc900fb.h b/drivers/video/nuc900fb.h
index 6c23aa3d3b89..bc7c9300f276 100644
--- a/drivers/video/nuc900fb.h
+++ b/drivers/video/nuc900fb.h
@@ -8,7 +8,7 @@
  * the Free Software Foundation; either version 2 of the License, or
  * (at your option) any later version.
  *
- *   Auther:
+ *   Author:
  *        Wang Qiang(rurality.linux@gmail.com)  2009/12/16
  */
 
diff --git a/drivers/video/omap/Kconfig b/drivers/video/omap/Kconfig
index 15e7f1912af9..196fa2e7f438 100644
--- a/drivers/video/omap/Kconfig
+++ b/drivers/video/omap/Kconfig
@@ -64,7 +64,7 @@ config FB_OMAP_MANUAL_UPDATE
 	depends on FB_OMAP && FB_OMAP_LCDC_EXTERNAL
 	help
 	  Say Y here, if your user-space applications are capable of
-	  notifying the frame buffer driver when a change has occured in
+	  notifying the frame buffer driver when a change has occurred in
 	  the frame buffer content and thus a reload of the image data to
 	  the external frame buffer is required. If unsure, say N.
 
diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c
index 0d44f070ef36..a981def8099a 100644
--- a/drivers/video/omap2/dss/hdmi.c
+++ b/drivers/video/omap2/dss/hdmi.c
@@ -587,7 +587,7 @@ static void get_edid_timing_data(u8 *edid)
 	struct hdmi_cm cm;
 	struct omap_video_timings edid_timings;
 
-	/* seach block 0, there are 4 DTDs arranged in priority order */
+	/* search block 0, there are 4 DTDs arranged in priority order */
 	for (count = 0; count < EDID_SIZE_BLOCK0_TIMING_DESCRIPTOR; count++) {
 		current_descriptor_addrs =
 			EDID_DESCRIPTOR_BLOCK0_ADDRESS +
diff --git a/drivers/video/pxa3xx-gcu.c b/drivers/video/pxa3xx-gcu.c
index cf4beb9dc9bb..0283c7021090 100644
--- a/drivers/video/pxa3xx-gcu.c
+++ b/drivers/video/pxa3xx-gcu.c
@@ -25,7 +25,7 @@
 
 /*
  * WARNING: This controller is attached to System Bus 2 of the PXA which
- * needs its arbiter to be enabled explictly (CKENB & 1<<9).
+ * needs its arbiter to be enabled explicitly (CKENB & 1<<9).
  * There is currently no way to do this from Linux, so you need to teach
  * your bootloader for now.
  */
diff --git a/drivers/video/pxafb.c b/drivers/video/pxafb.c
index 825b665245bb..a2e5b5100ab4 100644
--- a/drivers/video/pxafb.c
+++ b/drivers/video/pxafb.c
@@ -627,7 +627,12 @@ static void overlay1fb_enable(struct pxafb_layer *ofb)
 
 static void overlay1fb_disable(struct pxafb_layer *ofb)
 {
-	uint32_t lccr5 = lcd_readl(ofb->fbi, LCCR5);
+	uint32_t lccr5;
+
+	if (!(lcd_readl(ofb->fbi, OVL1C1) & OVLxC1_OEN))
+		return;
+
+	lccr5 = lcd_readl(ofb->fbi, LCCR5);
 
 	lcd_writel(ofb->fbi, OVL1C1, ofb->control[0] & ~OVLxC1_OEN);
 
@@ -685,7 +690,12 @@ static void overlay2fb_enable(struct pxafb_layer *ofb)
 
 static void overlay2fb_disable(struct pxafb_layer *ofb)
 {
-	uint32_t lccr5 = lcd_readl(ofb->fbi, LCCR5);
+	uint32_t lccr5;
+
+	if (!(lcd_readl(ofb->fbi, OVL2C1) & OVLxC1_OEN))
+		return;
+
+	lccr5 = lcd_readl(ofb->fbi, LCCR5);
 
 	lcd_writel(ofb->fbi, OVL2C1, ofb->control[0] & ~OVLxC1_OEN);
 
@@ -720,12 +730,10 @@ static int overlayfb_open(struct fb_info *info, int user)
 	if (user == 0)
 		return -ENODEV;
 
-	/* allow only one user at a time */
-	if (atomic_inc_and_test(&ofb->usage))
-		return -EBUSY;
+	if (ofb->usage++ == 0)
+		/* unblank the base framebuffer */
+		fb_blank(&ofb->fbi->fb, FB_BLANK_UNBLANK);
 
-	/* unblank the base framebuffer */
-	fb_blank(&ofb->fbi->fb, FB_BLANK_UNBLANK);
 	return 0;
 }
 
@@ -733,12 +741,15 @@ static int overlayfb_release(struct fb_info *info, int user)
 {
 	struct pxafb_layer *ofb = (struct pxafb_layer*) info;
 
-	atomic_dec(&ofb->usage);
-	ofb->ops->disable(ofb);
+	if (ofb->usage == 1) {
+		ofb->ops->disable(ofb);
+		ofb->fb.var.height	= -1;
+		ofb->fb.var.width	= -1;
+		ofb->fb.var.xres = ofb->fb.var.xres_virtual = 0;
+		ofb->fb.var.yres = ofb->fb.var.yres_virtual = 0;
 
-	free_pages_exact(ofb->video_mem, ofb->video_mem_size);
-	ofb->video_mem = NULL;
-	ofb->video_mem_size = 0;
+		ofb->usage--;
+	}
 	return 0;
 }
 
@@ -750,7 +761,7 @@ static int overlayfb_check_var(struct fb_var_screeninfo *var,
 	int xpos, ypos, pfor, bpp;
 
 	xpos = NONSTD_TO_XPOS(var->nonstd);
-	ypos = NONSTD_TO_XPOS(var->nonstd);
+	ypos = NONSTD_TO_YPOS(var->nonstd);
 	pfor = NONSTD_TO_PFOR(var->nonstd);
 
 	bpp = pxafb_var_to_bpp(var);
@@ -794,7 +805,7 @@ static int overlayfb_check_var(struct fb_var_screeninfo *var,
 	return 0;
 }
 
-static int overlayfb_map_video_memory(struct pxafb_layer *ofb)
+static int overlayfb_check_video_memory(struct pxafb_layer *ofb)
 {
 	struct fb_var_screeninfo *var = &ofb->fb.var;
 	int pfor = NONSTD_TO_PFOR(var->nonstd);
@@ -812,27 +823,11 @@ static int overlayfb_map_video_memory(struct pxafb_layer *ofb)
 
 	size = PAGE_ALIGN(ofb->fb.fix.line_length * var->yres_virtual);
 
-	/* don't re-allocate if the original video memory is enough */
 	if (ofb->video_mem) {
 		if (ofb->video_mem_size >= size)
 			return 0;
-
-		free_pages_exact(ofb->video_mem, ofb->video_mem_size);
 	}
-
-	ofb->video_mem = alloc_pages_exact(size, GFP_KERNEL | __GFP_ZERO);
-	if (ofb->video_mem == NULL)
-		return -ENOMEM;
-
-	ofb->video_mem_phys = virt_to_phys(ofb->video_mem);
-	ofb->video_mem_size = size;
-
-	mutex_lock(&ofb->fb.mm_lock);
-	ofb->fb.fix.smem_start	= ofb->video_mem_phys;
-	ofb->fb.fix.smem_len	= ofb->fb.fix.line_length * var->yres_virtual;
-	mutex_unlock(&ofb->fb.mm_lock);
-	ofb->fb.screen_base	= ofb->video_mem;
-	return 0;
+	return -EINVAL;
 }
 
 static int overlayfb_set_par(struct fb_info *info)
@@ -841,13 +836,13 @@ static int overlayfb_set_par(struct fb_info *info)
 	struct fb_var_screeninfo *var = &info->var;
 	int xpos, ypos, pfor, bpp, ret;
 
-	ret = overlayfb_map_video_memory(ofb);
+	ret = overlayfb_check_video_memory(ofb);
 	if (ret)
 		return ret;
 
 	bpp  = pxafb_var_to_bpp(var);
 	xpos = NONSTD_TO_XPOS(var->nonstd);
-	ypos = NONSTD_TO_XPOS(var->nonstd);
+	ypos = NONSTD_TO_YPOS(var->nonstd);
 	pfor = NONSTD_TO_PFOR(var->nonstd);
 
 	ofb->control[0] = OVLxC1_PPL(var->xres) | OVLxC1_LPO(var->yres) |
@@ -891,7 +886,7 @@ static void __devinit init_pxafb_overlay(struct pxafb_info *fbi,
 
 	ofb->id = id;
 	ofb->ops = &ofb_ops[id];
-	atomic_set(&ofb->usage, 0);
+	ofb->usage = 0;
 	ofb->fbi = fbi;
 	init_completion(&ofb->branch_done);
 }
@@ -904,29 +899,60 @@ static inline int pxafb_overlay_supported(void)
 	return 0;
 }
 
-static int __devinit pxafb_overlay_init(struct pxafb_info *fbi)
+static int __devinit pxafb_overlay_map_video_memory(struct pxafb_info *pxafb,
+	struct pxafb_layer *ofb)
+{
+	/* We assume that user will use at most video_mem_size for overlay fb,
+	 * anyway, it's useless to use 16bpp main plane and 24bpp overlay
+	 */
+	ofb->video_mem = alloc_pages_exact(PAGE_ALIGN(pxafb->video_mem_size),
+		GFP_KERNEL | __GFP_ZERO);
+	if (ofb->video_mem == NULL)
+		return -ENOMEM;
+
+	ofb->video_mem_phys = virt_to_phys(ofb->video_mem);
+	ofb->video_mem_size = PAGE_ALIGN(pxafb->video_mem_size);
+
+	mutex_lock(&ofb->fb.mm_lock);
+	ofb->fb.fix.smem_start	= ofb->video_mem_phys;
+	ofb->fb.fix.smem_len	= pxafb->video_mem_size;
+	mutex_unlock(&ofb->fb.mm_lock);
+
+	ofb->fb.screen_base	= ofb->video_mem;
+
+	return 0;
+}
+
+static void __devinit pxafb_overlay_init(struct pxafb_info *fbi)
 {
 	int i, ret;
 
 	if (!pxafb_overlay_supported())
-		return 0;
+		return;
 
 	for (i = 0; i < 2; i++) {
-		init_pxafb_overlay(fbi, &fbi->overlay[i], i);
-		ret = register_framebuffer(&fbi->overlay[i].fb);
+		struct pxafb_layer *ofb = &fbi->overlay[i];
+		init_pxafb_overlay(fbi, ofb, i);
+		ret = register_framebuffer(&ofb->fb);
 		if (ret) {
 			dev_err(fbi->dev, "failed to register overlay %d\n", i);
-			return ret;
+			continue;
 		}
+		ret = pxafb_overlay_map_video_memory(fbi, ofb);
+		if (ret) {
+			dev_err(fbi->dev,
+				"failed to map video memory for overlay %d\n",
+				i);
+			unregister_framebuffer(&ofb->fb);
+			continue;
+		}
+		ofb->registered = 1;
 	}
 
 	/* mask all IU/BS/EOF/SOF interrupts */
 	lcd_writel(fbi, LCCR5, ~0);
 
-	/* place overlay(s) on top of base */
-	fbi->lccr0 |= LCCR0_OUC;
 	pr_info("PXA Overlay driver loaded successfully!\n");
-	return 0;
 }
 
 static void __devexit pxafb_overlay_exit(struct pxafb_info *fbi)
@@ -936,8 +962,15 @@ static void __devexit pxafb_overlay_exit(struct pxafb_info *fbi)
 	if (!pxafb_overlay_supported())
 		return;
 
-	for (i = 0; i < 2; i++)
-		unregister_framebuffer(&fbi->overlay[i].fb);
+	for (i = 0; i < 2; i++) {
+		struct pxafb_layer *ofb = &fbi->overlay[i];
+		if (ofb->registered) {
+			if (ofb->video_mem)
+				free_pages_exact(ofb->video_mem,
+					ofb->video_mem_size);
+			unregister_framebuffer(&ofb->fb);
+		}
+	}
 }
 #else
 static inline void pxafb_overlay_init(struct pxafb_info *fbi) {}
@@ -1368,7 +1401,8 @@ static int pxafb_activate_var(struct fb_var_screeninfo *var,
 	    (lcd_readl(fbi, LCCR3) != fbi->reg_lccr3) ||
 	    (lcd_readl(fbi, LCCR4) != fbi->reg_lccr4) ||
 	    (lcd_readl(fbi, FDADR0) != fbi->fdadr[0]) ||
-	    (lcd_readl(fbi, FDADR1) != fbi->fdadr[1]))
+	    ((fbi->lccr0 & LCCR0_SDS) &&
+	    (lcd_readl(fbi, FDADR1) != fbi->fdadr[1])))
 		pxafb_schedule_work(fbi, C_REENABLE);
 
 	return 0;
@@ -1420,7 +1454,8 @@ static void pxafb_enable_controller(struct pxafb_info *fbi)
 	lcd_writel(fbi, LCCR0, fbi->reg_lccr0 & ~LCCR0_ENB);
 
 	lcd_writel(fbi, FDADR0, fbi->fdadr[0]);
-	lcd_writel(fbi, FDADR1, fbi->fdadr[1]);
+	if (fbi->lccr0 & LCCR0_SDS)
+		lcd_writel(fbi, FDADR1, fbi->fdadr[1]);
 	lcd_writel(fbi, LCCR0, fbi->reg_lccr0 | LCCR0_ENB);
 }
 
@@ -1613,7 +1648,8 @@ pxafb_freq_transition(struct notifier_block *nb, unsigned long val, void *data)
 
 	switch (val) {
 	case CPUFREQ_PRECHANGE:
-		set_ctrlr_state(fbi, C_DISABLE_CLKCHANGE);
+		if (!fbi->overlay[0].usage && !fbi->overlay[1].usage)
+			set_ctrlr_state(fbi, C_DISABLE_CLKCHANGE);
 		break;
 
 	case CPUFREQ_POSTCHANGE:
@@ -1806,6 +1842,12 @@ static struct pxafb_info * __devinit pxafb_init_fbinfo(struct device *dev)
 
 	pxafb_decode_mach_info(fbi, inf);
 
+#ifdef CONFIG_FB_PXA_OVERLAY
+	/* place overlay(s) on top of base */
+	if (pxafb_overlay_supported())
+		fbi->lccr0 |= LCCR0_OUC;
+#endif
+
 	init_waitqueue_head(&fbi->ctrlr_wait);
 	INIT_WORK(&fbi->task, pxafb_task);
 	mutex_init(&fbi->ctrlr_lock);
diff --git a/drivers/video/pxafb.h b/drivers/video/pxafb.h
index 2353521c5c8c..26ba9fa3f737 100644
--- a/drivers/video/pxafb.h
+++ b/drivers/video/pxafb.h
@@ -92,7 +92,8 @@ struct pxafb_layer_ops {
 struct pxafb_layer {
 	struct fb_info		fb;
 	int			id;
-	atomic_t		usage;
+	int			registered;
+	uint32_t		usage;
 	uint32_t		control[2];
 
 	struct pxafb_layer_ops	*ops;
diff --git a/drivers/video/savage/savagefb.h b/drivers/video/savage/savagefb.h
index e4c3f214eb8e..4e9490c19d7d 100644
--- a/drivers/video/savage/savagefb.h
+++ b/drivers/video/savage/savagefb.h
@@ -153,7 +153,7 @@ struct savage_reg {
 	unsigned char CRTC[25];       /* Crtc Controller */
 	unsigned char Sequencer[5];   /* Video Sequencer */
 	unsigned char Graphics[9];    /* Video Graphics */
-	unsigned char Attribute[21];  /* Video Atribute */
+	unsigned char Attribute[21];  /* Video Attribute */
 
 	unsigned int mode, refresh;
 	unsigned char SR08, SR0E, SR0F;
diff --git a/drivers/video/savage/savagefb_driver.c b/drivers/video/savage/savagefb_driver.c
index 487911e2926c..a2dc1a7ec758 100644
--- a/drivers/video/savage/savagefb_driver.c
+++ b/drivers/video/savage/savagefb_driver.c
@@ -385,7 +385,7 @@ SavageSetup2DEngine(struct savagefb_par  *par)
 	BCI_SEND(GlobalBitmapDescriptor);
 
 	/*
-	 * I don't know why, sending this twice fixes the intial black screen,
+	 * I don't know why, sending this twice fixes the initial black screen,
 	 * prevents X from crashing at least in Toshiba laptops with SavageIX.
 	 * --Tony
 	 */
@@ -2211,7 +2211,7 @@ static int __devinit savagefb_probe(struct pci_dev* dev,
 		goto failed_mmio;
 
 	video_len = savage_init_hw(par);
-	/* FIXME: cant be negative */
+	/* FIXME: can't be negative */
 	if (video_len < 0) {
 		err = video_len;
 		goto failed_mmio;
diff --git a/drivers/video/sm501fb.c b/drivers/video/sm501fb.c
index 46d1a64fe80d..56ef6b3a9851 100644
--- a/drivers/video/sm501fb.c
+++ b/drivers/video/sm501fb.c
@@ -265,7 +265,7 @@ static unsigned long sm501fb_ps_to_hz(unsigned long psvalue)
 	return (unsigned long)numerator;
 }
 
-/* sm501fb_hz_to_ps is identical to the oposite transform */
+/* sm501fb_hz_to_ps is identical to the opposite transform */
 
 #define sm501fb_hz_to_ps(x) sm501fb_ps_to_hz(x)
 
@@ -1719,7 +1719,7 @@ static int sm501fb_init_fb(struct fb_info *fb,
 	       (head == HEAD_CRT) ? &sm501fb_ops_crt : &sm501fb_ops_pnl,
 	       sizeof(struct fb_ops));
 
-	/* update ops dependant on what we've been passed */
+	/* update ops dependent on what we've been passed */
 
 	if ((pd->flags & SM501FB_FLAG_USE_HWCURSOR) == 0)
 		par->ops.fb_cursor = NULL;
diff --git a/drivers/video/sstfb.c b/drivers/video/sstfb.c
index 2ab704118c44..2301c275d63a 100644
--- a/drivers/video/sstfb.c
+++ b/drivers/video/sstfb.c
@@ -221,7 +221,7 @@ static int __sst_wait_idle(u8 __iomem *vbase)
 	while(1) {
 		if (__sst_read(vbase, STATUS) & STATUS_FBI_BUSY) {
 			f_dddprintk("status: busy\n");
-/* FIXME basicaly, this is a busy wait. maybe not that good. oh well;
+/* FIXME basically, this is a busy wait. maybe not that good. oh well;
  * this is a small loop after all.
  * Or maybe we should use mdelay() or udelay() here instead ? */
 			count = 0;
@@ -501,7 +501,7 @@ static int sstfb_set_par(struct fb_info *info)
 	}
 
 	if (IS_VOODOO2(par)) {
-		/* voodoo2 has 32 pixel wide tiles , BUT stange things
+		/* voodoo2 has 32 pixel wide tiles , BUT strange things
 		   happen with odd number of tiles */
 		par->tiles_in_X = (info->var.xres + 63 ) / 64 * 2;
 	} else {
@@ -920,11 +920,11 @@ static int __devinit sst_detect_ti(struct fb_info *info)
  * we get the 1st byte (M value) of preset f1,f7 and fB
  * why those 3 ? mmmh... for now, i'll do it the glide way...
  * and ask questions later. anyway, it seems that all the freq registers are
- * realy at their default state (cf specs) so i ask again, why those 3 regs ?
+ * really at their default state (cf specs) so i ask again, why those 3 regs ?
  * mmmmh.. it seems that's much more ugly than i thought. we use f0 and fA for
  * pll programming, so in fact, we *hope* that the f1, f7 & fB won't be
  * touched...
- * is it realy safe ? how can i reset this ramdac ? geee...
+ * is it really safe ? how can i reset this ramdac ? geee...
  */
 static int __devinit sst_detect_ics(struct fb_info *info)
 {
diff --git a/drivers/video/sticore.h b/drivers/video/sticore.h
index 7fe5be4bc70e..addf7b615ef8 100644
--- a/drivers/video/sticore.h
+++ b/drivers/video/sticore.h
@@ -79,7 +79,7 @@ struct sti_glob_cfg_ext {
 	 u8 curr_mon;			/* current monitor configured */
 	 u8 friendly_boot;		/* in friendly boot mode */
 	s16 power;			/* power calculation (in Watts) */
-	s32 freq_ref;			/* frequency refrence */
+	s32 freq_ref;			/* frequency reference */
 	u32 sti_mem_addr;		/* pointer to global sti memory (size=sti_mem_request) */
 	u32 future_ptr; 		/* pointer to future data */
 };
diff --git a/drivers/video/tdfxfb.c b/drivers/video/tdfxfb.c
index 3ee5e63cfa4f..a99b994c9b6b 100644
--- a/drivers/video/tdfxfb.c
+++ b/drivers/video/tdfxfb.c
@@ -877,12 +877,12 @@ static void tdfxfb_fillrect(struct fb_info *info,
 	else
 		tdfx_rop = TDFX_ROP_XOR;
 
-	/* asume always rect->height < 4096 */
+	/* assume always rect->height < 4096 */
 	if (dy + rect->height > 4095) {
 		dstbase = stride * dy;
 		dy = 0;
 	}
-	/* asume always rect->width < 4096 */
+	/* assume always rect->width < 4096 */
 	if (dx + rect->width > 4095) {
 		dstbase += dx * bpp >> 3;
 		dx = 0;
@@ -915,22 +915,22 @@ static void tdfxfb_copyarea(struct fb_info *info,
 	u32 dstbase = 0;
 	u32 srcbase = 0;
 
-	/* asume always area->height < 4096 */
+	/* assume always area->height < 4096 */
 	if (sy + area->height > 4095) {
 		srcbase = stride * sy;
 		sy = 0;
 	}
-	/* asume always area->width < 4096 */
+	/* assume always area->width < 4096 */
 	if (sx + area->width > 4095) {
 		srcbase += sx * bpp >> 3;
 		sx = 0;
 	}
-	/* asume always area->height < 4096 */
+	/* assume always area->height < 4096 */
 	if (dy + area->height > 4095) {
 		dstbase = stride * dy;
 		dy = 0;
 	}
-	/* asume always area->width < 4096 */
+	/* assume always area->width < 4096 */
 	if (dx + area->width > 4095) {
 		dstbase += dx * bpp >> 3;
 		dx = 0;
@@ -1003,12 +1003,12 @@ static void tdfxfb_imageblit(struct fb_info *info, const struct fb_image *image)
 #else
 	srcfmt = 0x400000;
 #endif
-	/* asume always image->height < 4096 */
+	/* assume always image->height < 4096 */
 	if (dy + image->height > 4095) {
 		dstbase = stride * dy;
 		dy = 0;
 	}
-	/* asume always image->width < 4096 */
+	/* assume always image->width < 4096 */
 	if (dx + image->width > 4095) {
 		dstbase += dx * bpp >> 3;
 		dx = 0;
@@ -1124,7 +1124,7 @@ static int tdfxfb_cursor(struct fb_info *info, struct fb_cursor *cursor)
 		 * lower half (least significant 64 bits) of a 128 bit word
 		 * and pattern 1 the upper half. If you examine the data of
 		 * the cursor image the graphics card uses then from the
-		 * begining you see line one of pattern 0, line one of
+		 * beginning you see line one of pattern 0, line one of
 		 * pattern 1, line two of pattern 0, line two of pattern 1,
 		 * etc etc. The linear stride for the cursor is always 16 bytes
 		 * (128 bits) which is the maximum cursor width times two for
diff --git a/drivers/video/tmiofb.c b/drivers/video/tmiofb.c
index 9710bf8caeae..0c341d739604 100644
--- a/drivers/video/tmiofb.c
+++ b/drivers/video/tmiofb.c
@@ -359,7 +359,7 @@ tmiofb_acc_wait(struct fb_info *info, unsigned int ccs)
 {
 	struct tmiofb_par *par = info->par;
 	/*
-	 * This code can be called whith interrupts disabled.
+	 * This code can be called with interrupts disabled.
 	 * So instead of relaying on irq to trigger the event,
 	 * poll the state till the necessary command is executed.
 	 */
diff --git a/drivers/video/udlfb.c b/drivers/video/udlfb.c
index 2c8364e9b632..68041d9dc260 100644
--- a/drivers/video/udlfb.c
+++ b/drivers/video/udlfb.c
@@ -769,7 +769,7 @@ static int dlfb_ops_ioctl(struct fb_info *info, unsigned int cmd,
 
 		/*
 		 * If we have a damage-aware client, turn fb_defio "off"
-		 * To avoid perf imact of unecessary page fault handling.
+		 * To avoid perf imact of unnecessary page fault handling.
 		 * Done by resetting the delay for this fb_info to a very
 		 * long period. Pages will become writable and stay that way.
 		 * Reset to normal value when all clients have closed this fb.
diff --git a/drivers/video/vga16fb.c b/drivers/video/vga16fb.c
index 28ccab44a391..53b2c5aae067 100644
--- a/drivers/video/vga16fb.c
+++ b/drivers/video/vga16fb.c
@@ -152,7 +152,7 @@ static inline int setop(int op)
 }
 
 /* Set the Enable Set/Reset Register and return its old value.  
-   The code here always uses value 0xf for thsi register. */
+   The code here always uses value 0xf for this register. */
 static inline int setsr(int sr)
 {
 	int oldsr;
diff --git a/drivers/video/via/via_utility.c b/drivers/video/via/via_utility.c
index d05ccb62b55f..35458a5eadc8 100644
--- a/drivers/video/via/via_utility.c
+++ b/drivers/video/via/via_utility.c
@@ -174,7 +174,7 @@ void viafb_set_gamma_table(int bpp, unsigned int *gamma_table)
 	}
 
 	/* If adjust Gamma value in SAMM, fill IGA1,
-	   IGA2 Gamma table simultanous. */
+	   IGA2 Gamma table simultaneous. */
 	/* Switch to IGA2 Gamma Table */
 	if ((active_device_amount > 1) &&
 		!((viaparinfo->chip_info->gfx_chip_name ==
diff --git a/drivers/video/via/via_utility.h b/drivers/video/via/via_utility.h
index 1670ba82143f..f23be1708c14 100644
--- a/drivers/video/via/via_utility.h
+++ b/drivers/video/via/via_utility.h
@@ -21,7 +21,7 @@
 #ifndef __VIAUTILITY_H__
 #define __VIAUTILITY_H__
 
-/* These functions are used to get infomation about device's state */
+/* These functions are used to get information about device's state */
 void viafb_get_device_support_state(u32 *support_state);
 void viafb_get_device_connect_state(u32 *connect_state);
 bool viafb_lcd_get_support_expand_state(u32 xres, u32 yres);
diff --git a/drivers/video/via/viafbdev.c b/drivers/video/via/viafbdev.c
index 9d9bb9b4ed3f..a542bed086e2 100644
--- a/drivers/video/via/viafbdev.c
+++ b/drivers/video/via/viafbdev.c
@@ -2021,7 +2021,7 @@ int __init viafb_init(void)
 		return -EINVAL;
 
 	printk(KERN_INFO
-       "VIA Graphics Intergration Chipset framebuffer %d.%d initializing\n",
+       "VIA Graphics Integration Chipset framebuffer %d.%d initializing\n",
 	       VERSION_MAJOR, VERSION_MINOR);
 	return 0;
 }
diff --git a/drivers/video/w100fb.c b/drivers/video/w100fb.c
index d8b12c32e3ef..c8be8af0cc6d 100644
--- a/drivers/video/w100fb.c
+++ b/drivers/video/w100fb.c
@@ -1306,7 +1306,7 @@ static void w100_init_lcd(struct w100fb_par *par)
 	union graphic_v_disp_u graphic_v_disp;
 	union crtc_total_u crtc_total;
 
-	/* w3200 doesnt like undefined bits being set so zero register values first */
+	/* w3200 doesn't like undefined bits being set so zero register values first */
 
 	active_h_disp.val = 0;
 	active_h_disp.f.active_h_start=mode->left_margin;
diff --git a/drivers/vlynq/vlynq.c b/drivers/vlynq/vlynq.c
index f885c868a04d..aa250cebecd2 100644
--- a/drivers/vlynq/vlynq.c
+++ b/drivers/vlynq/vlynq.c
@@ -135,40 +135,40 @@ static void vlynq_reset(struct vlynq_device *dev)
 	msleep(5);
 }
 
-static void vlynq_irq_unmask(unsigned int irq)
+static void vlynq_irq_unmask(struct irq_data *d)
 {
-	u32 val;
-	struct vlynq_device *dev = get_irq_chip_data(irq);
+	struct vlynq_device *dev = irq_data_get_irq_chip_data(d);
 	int virq;
+	u32 val;
 
 	BUG_ON(!dev);
-	virq = irq - dev->irq_start;
+	virq = d->irq - dev->irq_start;
 	val = readl(&dev->remote->int_device[virq >> 2]);
 	val |= (VINT_ENABLE | virq) << VINT_OFFSET(virq);
 	writel(val, &dev->remote->int_device[virq >> 2]);
 }
 
-static void vlynq_irq_mask(unsigned int irq)
+static void vlynq_irq_mask(struct irq_data *d)
 {
-	u32 val;
-	struct vlynq_device *dev = get_irq_chip_data(irq);
+	struct vlynq_device *dev = irq_data_get_irq_chip_data(d);
 	int virq;
+	u32 val;
 
 	BUG_ON(!dev);
-	virq = irq - dev->irq_start;
+	virq = d->irq - dev->irq_start;
 	val = readl(&dev->remote->int_device[virq >> 2]);
 	val &= ~(VINT_ENABLE << VINT_OFFSET(virq));
 	writel(val, &dev->remote->int_device[virq >> 2]);
 }
 
-static int vlynq_irq_type(unsigned int irq, unsigned int flow_type)
+static int vlynq_irq_type(struct irq_data *d, unsigned int flow_type)
 {
-	u32 val;
-	struct vlynq_device *dev = get_irq_chip_data(irq);
+	struct vlynq_device *dev = irq_data_get_irq_chip_data(d);
 	int virq;
+	u32 val;
 
 	BUG_ON(!dev);
-	virq = irq - dev->irq_start;
+	virq = d->irq - dev->irq_start;
 	val = readl(&dev->remote->int_device[virq >> 2]);
 	switch (flow_type & IRQ_TYPE_SENSE_MASK) {
 	case IRQ_TYPE_EDGE_RISING:
@@ -192,10 +192,9 @@ static int vlynq_irq_type(unsigned int irq, unsigned int flow_type)
 	return 0;
 }
 
-static void vlynq_local_ack(unsigned int irq)
+static void vlynq_local_ack(struct irq_data *d)
 {
-	struct vlynq_device *dev = get_irq_chip_data(irq);
-
+	struct vlynq_device *dev = irq_data_get_irq_chip_data(d);
 	u32 status = readl(&dev->local->status);
 
 	pr_debug("%s: local status: 0x%08x\n",
@@ -203,10 +202,9 @@ static void vlynq_local_ack(unsigned int irq)
 	writel(status, &dev->local->status);
 }
 
-static void vlynq_remote_ack(unsigned int irq)
+static void vlynq_remote_ack(struct irq_data *d)
 {
-	struct vlynq_device *dev = get_irq_chip_data(irq);
-
+	struct vlynq_device *dev = irq_data_get_irq_chip_data(d);
 	u32 status = readl(&dev->remote->status);
 
 	pr_debug("%s: remote status: 0x%08x\n",
@@ -238,23 +236,23 @@ static irqreturn_t vlynq_irq(int irq, void *dev_id)
 
 static struct irq_chip vlynq_irq_chip = {
 	.name = "vlynq",
-	.unmask = vlynq_irq_unmask,
-	.mask = vlynq_irq_mask,
-	.set_type = vlynq_irq_type,
+	.irq_unmask = vlynq_irq_unmask,
+	.irq_mask = vlynq_irq_mask,
+	.irq_set_type = vlynq_irq_type,
 };
 
 static struct irq_chip vlynq_local_chip = {
 	.name = "vlynq local error",
-	.unmask = vlynq_irq_unmask,
-	.mask = vlynq_irq_mask,
-	.ack = vlynq_local_ack,
+	.irq_unmask = vlynq_irq_unmask,
+	.irq_mask = vlynq_irq_mask,
+	.irq_ack = vlynq_local_ack,
 };
 
 static struct irq_chip vlynq_remote_chip = {
 	.name = "vlynq local error",
-	.unmask = vlynq_irq_unmask,
-	.mask = vlynq_irq_mask,
-	.ack = vlynq_remote_ack,
+	.irq_unmask = vlynq_irq_unmask,
+	.irq_mask = vlynq_irq_mask,
+	.irq_ack = vlynq_remote_ack,
 };
 
 static int vlynq_setup_irq(struct vlynq_device *dev)
@@ -291,17 +289,17 @@ static int vlynq_setup_irq(struct vlynq_device *dev)
 	for (i = dev->irq_start; i <= dev->irq_end; i++) {
 		virq = i - dev->irq_start;
 		if (virq == dev->local_irq) {
-			set_irq_chip_and_handler(i, &vlynq_local_chip,
+			irq_set_chip_and_handler(i, &vlynq_local_chip,
 						 handle_level_irq);
-			set_irq_chip_data(i, dev);
+			irq_set_chip_data(i, dev);
 		} else if (virq == dev->remote_irq) {
-			set_irq_chip_and_handler(i, &vlynq_remote_chip,
+			irq_set_chip_and_handler(i, &vlynq_remote_chip,
 						 handle_level_irq);
-			set_irq_chip_data(i, dev);
+			irq_set_chip_data(i, dev);
 		} else {
-			set_irq_chip_and_handler(i, &vlynq_irq_chip,
+			irq_set_chip_and_handler(i, &vlynq_irq_chip,
 						 handle_simple_irq);
-			set_irq_chip_data(i, dev);
+			irq_set_chip_data(i, dev);
 			writel(0, &dev->remote->int_device[virq >> 2]);
 		}
 	}
diff --git a/drivers/w1/masters/ds1wm.c b/drivers/w1/masters/ds1wm.c
index 95921b77cf86..2f4fa02744a5 100644
--- a/drivers/w1/masters/ds1wm.c
+++ b/drivers/w1/masters/ds1wm.c
@@ -368,9 +368,9 @@ static int ds1wm_probe(struct platform_device *pdev)
 	ds1wm_data->active_high = plat->active_high;
 
 	if (res->flags & IORESOURCE_IRQ_HIGHEDGE)
-		set_irq_type(ds1wm_data->irq, IRQ_TYPE_EDGE_RISING);
+		irq_set_irq_type(ds1wm_data->irq, IRQ_TYPE_EDGE_RISING);
 	if (res->flags & IORESOURCE_IRQ_LOWEDGE)
-		set_irq_type(ds1wm_data->irq, IRQ_TYPE_EDGE_FALLING);
+		irq_set_irq_type(ds1wm_data->irq, IRQ_TYPE_EDGE_FALLING);
 
 	ret = request_irq(ds1wm_data->irq, ds1wm_isr, IRQF_DISABLED,
 			  "ds1wm", ds1wm_data);
diff --git a/drivers/w1/masters/omap_hdq.c b/drivers/w1/masters/omap_hdq.c
index 38e96ab90945..5ef385bfed18 100644
--- a/drivers/w1/masters/omap_hdq.c
+++ b/drivers/w1/masters/omap_hdq.c
@@ -545,7 +545,7 @@ static void omap_w1_write_byte(void *_hdq, u8 byte)
 		return;
 	}
 
-	/* Second write, data transfered. Release the module */
+	/* Second write, data transferred. Release the module */
 	if (hdq_data->init_trans > 1) {
 		omap_hdq_put(hdq_data);
 		ret = mutex_lock_interruptible(&hdq_data->hdq_mutex);
diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index b69d71482554..1b0f98bc51b5 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -933,7 +933,7 @@ config PNX833X_WDT
 	depends on SOC_PNX8335
 	help
 	  Hardware driver for the PNX833x's watchdog. This is a
-	  watchdog timer that will reboot the machine after a programable
+	  watchdog timer that will reboot the machine after a programmable
 	  timer has expired and no process has written to /dev/watchdog during
 	  that time.
 
diff --git a/drivers/watchdog/Makefile b/drivers/watchdog/Makefile
index d520bf9c3355..3f8608b922a7 100644
--- a/drivers/watchdog/Makefile
+++ b/drivers/watchdog/Makefile
@@ -4,7 +4,7 @@
 
 # Only one watchdog can succeed. We probe the ISA/PCI/USB based
 # watchdog-cards first, then the architecture specific watchdog
-# drivers and then the architecture independant "softdog" driver.
+# drivers and then the architecture independent "softdog" driver.
 # This means that if your ISA/PCI/USB card isn't detected that
 # you can fall back to an architecture specific driver and if
 # that also fails then you can fall back to the software watchdog
@@ -153,7 +153,7 @@ obj-$(CONFIG_WATCHDOG_CP1XXX)		+= cpwd.o
 # Xen
 obj-$(CONFIG_XEN_WDT) += xen_wdt.o
 
-# Architecture Independant
+# Architecture Independent
 obj-$(CONFIG_WM831X_WATCHDOG) += wm831x_wdt.o
 obj-$(CONFIG_WM8350_WATCHDOG) += wm8350_wdt.o
 obj-$(CONFIG_MAX63XX_WATCHDOG) += max63xx_wdt.o
diff --git a/drivers/watchdog/acquirewdt.c b/drivers/watchdog/acquirewdt.c
index 2ffce4d75443..b6a2b58cbe64 100644
--- a/drivers/watchdog/acquirewdt.c
+++ b/drivers/watchdog/acquirewdt.c
@@ -26,7 +26,7 @@
  *	Theory of Operation:
  *		The Watch-Dog Timer is provided to ensure that standalone
  *		Systems can always recover from catastrophic conditions that
- *		caused the CPU to crash. This condition may have occured by
+ *		caused the CPU to crash. This condition may have occurred by
  *		external EMI or a software bug. When the CPU stops working
  *		correctly, hardware on the board will either perform a hardware
  *		reset (cold boot) or a non-maskable interrupt (NMI) to bring the
diff --git a/drivers/watchdog/davinci_wdt.c b/drivers/watchdog/davinci_wdt.c
index 596ba604e78d..51b5551b4e3f 100644
--- a/drivers/watchdog/davinci_wdt.c
+++ b/drivers/watchdog/davinci_wdt.c
@@ -202,7 +202,6 @@ static struct miscdevice davinci_wdt_miscdev = {
 static int __devinit davinci_wdt_probe(struct platform_device *pdev)
 {
 	int ret = 0, size;
-	struct resource *res;
 	struct device *dev = &pdev->dev;
 
 	wdt_clk = clk_get(dev, NULL);
@@ -216,31 +215,31 @@ static int __devinit davinci_wdt_probe(struct platform_device *pdev)
 
 	dev_info(dev, "heartbeat %d sec\n", heartbeat);
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (res == NULL) {
+	wdt_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (wdt_mem == NULL) {
 		dev_err(dev, "failed to get memory region resource\n");
 		return -ENOENT;
 	}
 
-	size = resource_size(res);
-	wdt_mem = request_mem_region(res->start, size, pdev->name);
-
-	if (wdt_mem == NULL) {
+	size = resource_size(wdt_mem);
+	if (!request_mem_region(wdt_mem->start, size, pdev->name)) {
 		dev_err(dev, "failed to get memory region\n");
 		return -ENOENT;
 	}
 
-	wdt_base = ioremap(res->start, size);
+	wdt_base = ioremap(wdt_mem->start, size);
 	if (!wdt_base) {
 		dev_err(dev, "failed to map memory region\n");
+		release_mem_region(wdt_mem->start, size);
+		wdt_mem = NULL;
 		return -ENOMEM;
 	}
 
 	ret = misc_register(&davinci_wdt_miscdev);
 	if (ret < 0) {
 		dev_err(dev, "cannot register misc device\n");
-		release_resource(wdt_mem);
-		kfree(wdt_mem);
+		release_mem_region(wdt_mem->start, size);
+		wdt_mem = NULL;
 	} else {
 		set_bit(WDT_DEVICE_INITED, &wdt_status);
 	}
@@ -253,8 +252,7 @@ static int __devexit davinci_wdt_remove(struct platform_device *pdev)
 {
 	misc_deregister(&davinci_wdt_miscdev);
 	if (wdt_mem) {
-		release_resource(wdt_mem);
-		kfree(wdt_mem);
+		release_mem_region(wdt_mem->start, resource_size(wdt_mem));
 		wdt_mem = NULL;
 	}
 
diff --git a/drivers/watchdog/max63xx_wdt.c b/drivers/watchdog/max63xx_wdt.c
index 7a82ce5a6337..73ba2fd8e591 100644
--- a/drivers/watchdog/max63xx_wdt.c
+++ b/drivers/watchdog/max63xx_wdt.c
@@ -270,7 +270,6 @@ static int __devinit max63xx_wdt_probe(struct platform_device *pdev)
 {
 	int ret = 0;
 	int size;
-	struct resource *res;
 	struct device *dev = &pdev->dev;
 	struct max63xx_timeout *table;
 
@@ -294,21 +293,19 @@ static int __devinit max63xx_wdt_probe(struct platform_device *pdev)
 
 	max63xx_pdev = pdev;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (res == NULL) {
+	wdt_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (wdt_mem == NULL) {
 		dev_err(dev, "failed to get memory region resource\n");
 		return -ENOENT;
 	}
 
-	size = resource_size(res);
-	wdt_mem = request_mem_region(res->start, size, pdev->name);
-
-	if (wdt_mem == NULL) {
+	size = resource_size(wdt_mem);
+	if (!request_mem_region(wdt_mem->start, size, pdev->name)) {
 		dev_err(dev, "failed to get memory region\n");
 		return -ENOENT;
 	}
 
-	wdt_base = ioremap(res->start, size);
+	wdt_base = ioremap(wdt_mem->start, size);
 	if (!wdt_base) {
 		dev_err(dev, "failed to map memory region\n");
 		ret = -ENOMEM;
@@ -326,8 +323,8 @@ static int __devinit max63xx_wdt_probe(struct platform_device *pdev)
 out_unmap:
 	iounmap(wdt_base);
 out_request:
-	release_resource(wdt_mem);
-	kfree(wdt_mem);
+	release_mem_region(wdt_mem->start, size);
+	wdt_mem = NULL;
 
 	return ret;
 }
@@ -336,8 +333,7 @@ static int __devexit max63xx_wdt_remove(struct platform_device *pdev)
 {
 	misc_deregister(&max63xx_wdt_miscdev);
 	if (wdt_mem) {
-		release_resource(wdt_mem);
-		kfree(wdt_mem);
+		release_mem_region(wdt_mem->start, resource_size(wdt_mem));
 		wdt_mem = NULL;
 	}
 
diff --git a/drivers/watchdog/nv_tco.c b/drivers/watchdog/nv_tco.c
index 267377a5a83e..afa78a54711e 100644
--- a/drivers/watchdog/nv_tco.c
+++ b/drivers/watchdog/nv_tco.c
@@ -302,7 +302,7 @@ MODULE_DEVICE_TABLE(pci, tco_pci_tbl);
  *	Init & exit routines
  */
 
-static unsigned char __init nv_tco_getdevice(void)
+static unsigned char __devinit nv_tco_getdevice(void)
 {
 	struct pci_dev *dev = NULL;
 	u32 val;
diff --git a/drivers/watchdog/pc87413_wdt.c b/drivers/watchdog/pc87413_wdt.c
index 139d773300c6..b7c139051575 100644
--- a/drivers/watchdog/pc87413_wdt.c
+++ b/drivers/watchdog/pc87413_wdt.c
@@ -49,7 +49,7 @@
 #define WDT_DATA_IO_PORT    (WDT_INDEX_IO_PORT+1)
 #define SWC_LDN             0x04
 #define SIOCFG2             0x22	/* Serial IO register */
-#define WDCTL               0x10	/* Watchdog-Timer-Controll-Register */
+#define WDCTL               0x10	/* Watchdog-Timer-Control-Register */
 #define WDTO                0x11	/* Watchdog timeout register */
 #define WDCFG               0x12	/* Watchdog config register */
 
diff --git a/drivers/watchdog/pnx4008_wdt.c b/drivers/watchdog/pnx4008_wdt.c
index c7cf4cbf8ab3..614933225560 100644
--- a/drivers/watchdog/pnx4008_wdt.c
+++ b/drivers/watchdog/pnx4008_wdt.c
@@ -254,7 +254,6 @@ static struct miscdevice pnx4008_wdt_miscdev = {
 static int __devinit pnx4008_wdt_probe(struct platform_device *pdev)
 {
 	int ret = 0, size;
-	struct resource *res;
 
 	if (heartbeat < 1 || heartbeat > MAX_HEARTBEAT)
 		heartbeat = DEFAULT_HEARTBEAT;
@@ -262,42 +261,42 @@ static int __devinit pnx4008_wdt_probe(struct platform_device *pdev)
 	printk(KERN_INFO MODULE_NAME
 		"PNX4008 Watchdog Timer: heartbeat %d sec\n", heartbeat);
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (res == NULL) {
+	wdt_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (wdt_mem == NULL) {
 		printk(KERN_INFO MODULE_NAME
 			"failed to get memory region resouce\n");
 		return -ENOENT;
 	}
 
-	size = resource_size(res);
-	wdt_mem = request_mem_region(res->start, size, pdev->name);
+	size = resource_size(wdt_mem);
 
-	if (wdt_mem == NULL) {
+	if (!request_mem_region(wdt_mem->start, size, pdev->name)) {
 		printk(KERN_INFO MODULE_NAME "failed to get memory region\n");
 		return -ENOENT;
 	}
-	wdt_base = (void __iomem *)IO_ADDRESS(res->start);
+	wdt_base = (void __iomem *)IO_ADDRESS(wdt_mem->start);
 
 	wdt_clk = clk_get(&pdev->dev, NULL);
 	if (IS_ERR(wdt_clk)) {
 		ret = PTR_ERR(wdt_clk);
-		release_resource(wdt_mem);
-		kfree(wdt_mem);
+		release_mem_region(wdt_mem->start, size);
+		wdt_mem = NULL;
 		goto out;
 	}
 
 	ret = clk_enable(wdt_clk);
 	if (ret) {
-		release_resource(wdt_mem);
-		kfree(wdt_mem);
+		release_mem_region(wdt_mem->start, size);
+		wdt_mem = NULL;
+		clk_put(wdt_clk);
 		goto out;
 	}
 
 	ret = misc_register(&pnx4008_wdt_miscdev);
 	if (ret < 0) {
 		printk(KERN_ERR MODULE_NAME "cannot register misc device\n");
-		release_resource(wdt_mem);
-		kfree(wdt_mem);
+		release_mem_region(wdt_mem->start, size);
+		wdt_mem = NULL;
 		clk_disable(wdt_clk);
 		clk_put(wdt_clk);
 	} else {
@@ -320,8 +319,7 @@ static int __devexit pnx4008_wdt_remove(struct platform_device *pdev)
 	clk_put(wdt_clk);
 
 	if (wdt_mem) {
-		release_resource(wdt_mem);
-		kfree(wdt_mem);
+		release_mem_region(wdt_mem->start, resource_size(wdt_mem));
 		wdt_mem = NULL;
 	}
 	return 0;
diff --git a/drivers/watchdog/s3c2410_wdt.c b/drivers/watchdog/s3c2410_wdt.c
index 25b39bf35925..f7f5aa00df60 100644
--- a/drivers/watchdog/s3c2410_wdt.c
+++ b/drivers/watchdog/s3c2410_wdt.c
@@ -402,7 +402,6 @@ static inline void s3c2410wdt_cpufreq_deregister(void)
 
 static int __devinit s3c2410wdt_probe(struct platform_device *pdev)
 {
-	struct resource *res;
 	struct device *dev;
 	unsigned int wtcon;
 	int started = 0;
@@ -416,20 +415,19 @@ static int __devinit s3c2410wdt_probe(struct platform_device *pdev)
 
 	/* get the memory region for the watchdog timer */
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (res == NULL) {
+	wdt_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (wdt_mem == NULL) {
 		dev_err(dev, "no memory resource specified\n");
 		return -ENOENT;
 	}
 
-	size = resource_size(res);
-	wdt_mem = request_mem_region(res->start, size, pdev->name);
-	if (wdt_mem == NULL) {
+	size = resource_size(wdt_mem);
+	if (!request_mem_region(wdt_mem->start, size, pdev->name)) {
 		dev_err(dev, "failed to get memory region\n");
 		return -EBUSY;
 	}
 
-	wdt_base = ioremap(res->start, size);
+	wdt_base = ioremap(wdt_mem->start, size);
 	if (wdt_base == NULL) {
 		dev_err(dev, "failed to ioremap() region\n");
 		ret = -EINVAL;
@@ -524,8 +522,8 @@ static int __devinit s3c2410wdt_probe(struct platform_device *pdev)
 	iounmap(wdt_base);
 
  err_req:
-	release_resource(wdt_mem);
-	kfree(wdt_mem);
+	release_mem_region(wdt_mem->start, size);
+	wdt_mem = NULL;
 
 	return ret;
 }
@@ -545,8 +543,7 @@ static int __devexit s3c2410wdt_remove(struct platform_device *dev)
 
 	iounmap(wdt_base);
 
-	release_resource(wdt_mem);
-	kfree(wdt_mem);
+	release_mem_region(wdt_mem->start, resource_size(wdt_mem));
 	wdt_mem = NULL;
 	return 0;
 }
diff --git a/drivers/watchdog/sbc7240_wdt.c b/drivers/watchdog/sbc7240_wdt.c
index 67ddeb1c830a..ff11504c376e 100644
--- a/drivers/watchdog/sbc7240_wdt.c
+++ b/drivers/watchdog/sbc7240_wdt.c
@@ -273,7 +273,7 @@ static int __init sbc7240_wdt_init(void)
 
 	/* The IO port 0x043 used to disable the watchdog
 	 * is already claimed by the system timer, so we
-	 * cant request_region() it ...*/
+	 * can't request_region() it ...*/
 
 	if (timeout < 1 || timeout > SBC7240_MAX_TIMEOUT) {
 		timeout = SBC7240_TIMEOUT;
diff --git a/drivers/watchdog/sch311x_wdt.c b/drivers/watchdog/sch311x_wdt.c
index b61ab1c54293..c7cf4b01f58d 100644
--- a/drivers/watchdog/sch311x_wdt.c
+++ b/drivers/watchdog/sch311x_wdt.c
@@ -201,7 +201,7 @@ static void sch311x_wdt_get_status(int *status)
 	spin_lock(&sch311x_wdt_data.io_lock);
 
 	/* -- Watchdog timer control --
-	 * Bit 0   Status Bit: 0 = Timer counting, 1 = Timeout occured
+	 * Bit 0   Status Bit: 0 = Timer counting, 1 = Timeout occurred
 	 * Bit 1   Reserved
 	 * Bit 2   Force Timeout: 1 = Forces WD timeout event (self-cleaning)
 	 * Bit 3   P20 Force Timeout enabled:
diff --git a/drivers/watchdog/shwdt.c b/drivers/watchdog/shwdt.c
index 4e3e7eb5919c..db84f2322d1a 100644
--- a/drivers/watchdog/shwdt.c
+++ b/drivers/watchdog/shwdt.c
@@ -50,7 +50,7 @@
  * necssary.
  *
  * As a result of this timing problem, the only modes that are particularly
- * feasible are the 4096 and the 2048 divisors, which yeild 5.25 and 2.62ms
+ * feasible are the 4096 and the 2048 divisors, which yield 5.25 and 2.62ms
  * overflow periods respectively.
  *
  * Also, since we can't really expect userspace to be responsive enough
diff --git a/drivers/watchdog/smsc37b787_wdt.c b/drivers/watchdog/smsc37b787_wdt.c
index df88cfa05f35..e97b0499bd0d 100644
--- a/drivers/watchdog/smsc37b787_wdt.c
+++ b/drivers/watchdog/smsc37b787_wdt.c
@@ -191,7 +191,7 @@ static inline void wdt_timer_conf(unsigned char conf)
 static inline void wdt_timer_ctrl(unsigned char reg)
 {
 	/* -- Watchdog timer control --
-	 * Bit 0   Status Bit: 0 = Timer counting, 1 = Timeout occured
+	 * Bit 0   Status Bit: 0 = Timer counting, 1 = Timeout occurred
 	 * Bit 1   Power LED Toggle: 0 = Disable Toggle, 1 = Toggle at 1 Hz
 	 * Bit 2   Force Timeout: 1 = Forces WD timeout event (self-cleaning)
 	 * Bit 3   P20 Force Timeout enabled:
diff --git a/drivers/watchdog/softdog.c b/drivers/watchdog/softdog.c
index 100b114e3c3c..bf16ffb4d21e 100644
--- a/drivers/watchdog/softdog.c
+++ b/drivers/watchdog/softdog.c
@@ -48,6 +48,7 @@
 #include <linux/init.h>
 #include <linux/jiffies.h>
 #include <linux/uaccess.h>
+#include <linux/kernel.h>
 
 #define PFX "SoftDog: "
 
@@ -75,6 +76,11 @@ MODULE_PARM_DESC(soft_noboot,
 	"Softdog action, set to 1 to ignore reboots, 0 to reboot "
 					"(default depends on ONLY_TESTING)");
 
+static int soft_panic;
+module_param(soft_panic, int, 0);
+MODULE_PARM_DESC(soft_panic,
+	"Softdog action, set to 1 to panic, 0 to reboot (default=0)");
+
 /*
  *	Our timer
  */
@@ -98,7 +104,10 @@ static void watchdog_fire(unsigned long data)
 
 	if (soft_noboot)
 		printk(KERN_CRIT PFX "Triggered - Reboot ignored.\n");
-	else {
+	else if (soft_panic) {
+		printk(KERN_CRIT PFX "Initiating panic.\n");
+		panic("Software Watchdog Timer expired.");
+	} else {
 		printk(KERN_CRIT PFX "Initiating system reboot.\n");
 		emergency_restart();
 		printk(KERN_CRIT PFX "Reboot didn't ?????\n");
@@ -267,7 +276,8 @@ static struct notifier_block softdog_notifier = {
 };
 
 static char banner[] __initdata = KERN_INFO "Software Watchdog Timer: 0.07 "
-	"initialized. soft_noboot=%d soft_margin=%d sec (nowayout= %d)\n";
+	"initialized. soft_noboot=%d soft_margin=%d sec soft_panic=%d "
+	"(nowayout= %d)\n";
 
 static int __init watchdog_init(void)
 {
@@ -298,7 +308,7 @@ static int __init watchdog_init(void)
 		return ret;
 	}
 
-	printk(banner, soft_noboot, soft_margin, nowayout);
+	printk(banner, soft_noboot, soft_margin, soft_panic, nowayout);
 
 	return 0;
 }
diff --git a/drivers/watchdog/sp5100_tco.c b/drivers/watchdog/sp5100_tco.c
index 1bc493848ed4..87e0527669d8 100644
--- a/drivers/watchdog/sp5100_tco.c
+++ b/drivers/watchdog/sp5100_tco.c
@@ -42,6 +42,7 @@
 #define PFX TCO_MODULE_NAME ": "
 
 /* internal variables */
+static u32 tcobase_phys;
 static void __iomem *tcobase;
 static unsigned int pm_iobase;
 static DEFINE_SPINLOCK(tco_lock);	/* Guards the hardware */
@@ -305,10 +306,18 @@ static unsigned char __devinit sp5100_tco_setupdevice(void)
 	/* Low three bits of BASE0 are reserved. */
 	val = val << 8 | (inb(SP5100_IO_PM_DATA_REG) & 0xf8);
 
+	if (!request_mem_region_exclusive(val, SP5100_WDT_MEM_MAP_SIZE,
+								"SP5100 TCO")) {
+		printk(KERN_ERR PFX "mmio address 0x%04x already in use\n",
+			val);
+		goto unreg_region;
+	}
+	tcobase_phys = val;
+
 	tcobase = ioremap(val, SP5100_WDT_MEM_MAP_SIZE);
 	if (tcobase == 0) {
 		printk(KERN_ERR PFX "failed to get tcobase address\n");
-		goto unreg_region;
+		goto unreg_mem_region;
 	}
 
 	/* Enable watchdog decode bit */
@@ -346,7 +355,8 @@ static unsigned char __devinit sp5100_tco_setupdevice(void)
 	/* Done */
 	return 1;
 
-	iounmap(tcobase);
+unreg_mem_region:
+	release_mem_region(tcobase_phys, SP5100_WDT_MEM_MAP_SIZE);
 unreg_region:
 	release_region(pm_iobase, SP5100_PM_IOPORTS_SIZE);
 exit:
@@ -401,6 +411,7 @@ static int __devinit sp5100_tco_init(struct platform_device *dev)
 
 exit:
 	iounmap(tcobase);
+	release_mem_region(tcobase_phys, SP5100_WDT_MEM_MAP_SIZE);
 	release_region(pm_iobase, SP5100_PM_IOPORTS_SIZE);
 	return ret;
 }
@@ -414,6 +425,7 @@ static void __devexit sp5100_tco_cleanup(void)
 	/* Deregister */
 	misc_deregister(&sp5100_tco_miscdev);
 	iounmap(tcobase);
+	release_mem_region(tcobase_phys, SP5100_WDT_MEM_MAP_SIZE);
 	release_region(pm_iobase, SP5100_PM_IOPORTS_SIZE);
 }
 
diff --git a/drivers/watchdog/sp805_wdt.c b/drivers/watchdog/sp805_wdt.c
index 0a0efe713bc8..0d80e08b6439 100644
--- a/drivers/watchdog/sp805_wdt.c
+++ b/drivers/watchdog/sp805_wdt.c
@@ -90,7 +90,7 @@ static void wdt_setload(unsigned int timeout)
 	/*
 	 * sp805 runs counter with given value twice, after the end of first
 	 * counter it gives an interrupt and then starts counter again. If
-	 * interrupt already occured then it resets the system. This is why
+	 * interrupt already occurred then it resets the system. This is why
 	 * load is half of what should be required.
 	 */
 	load = div_u64(rate, 2) * timeout - 1;
diff --git a/drivers/xen/events.c b/drivers/xen/events.c
index 02b5a9c05cfa..42d6c930cc87 100644
--- a/drivers/xen/events.c
+++ b/drivers/xen/events.c
@@ -5,7 +5,7 @@
  * domain gets 1024 event channels, but NR_IRQ is not that large, we
  * must dynamically map irqs<->event channels.  The event channels
  * interface with the rest of the kernel by defining a xen interrupt
- * chip.  When an event is recieved, it is mapped to an irq and sent
+ * chip.  When an event is received, it is mapped to an irq and sent
  * through the normal interrupt processing path.
  *
  * There are four kinds of events which can be mapped to an event
@@ -122,7 +122,7 @@ static struct irq_chip xen_pirq_chip;
 /* Get info for IRQ */
 static struct irq_info *info_for_irq(unsigned irq)
 {
-	return get_irq_data(irq);
+	return irq_get_handler_data(irq);
 }
 
 /* Constructors for packed IRQ information. */
@@ -403,7 +403,7 @@ static void xen_irq_init(unsigned irq)
 
 	info->type = IRQT_UNBOUND;
 
-	set_irq_data(irq, info);
+	irq_set_handler_data(irq, info);
 
 	list_add_tail(&info->list, &xen_irq_list_head);
 }
@@ -416,7 +416,7 @@ static int __must_check xen_allocate_irq_dynamic(void)
 #ifdef CONFIG_X86_IO_APIC
 	/*
 	 * For an HVM guest or domain 0 which see "real" (emulated or
-	 * actual repectively) GSIs we allocate dynamic IRQs
+	 * actual respectively) GSIs we allocate dynamic IRQs
 	 * e.g. those corresponding to event channels or MSIs
 	 * etc. from the range above those "real" GSIs to avoid
 	 * collisions.
@@ -458,11 +458,11 @@ static int __must_check xen_allocate_irq_gsi(unsigned gsi)
 
 static void xen_free_irq(unsigned irq)
 {
-	struct irq_info *info = get_irq_data(irq);
+	struct irq_info *info = irq_get_handler_data(irq);
 
 	list_del(&info->list);
 
-	set_irq_data(irq, NULL);
+	irq_set_handler_data(irq, NULL);
 
 	kfree(info);
 
@@ -585,7 +585,7 @@ static void ack_pirq(struct irq_data *data)
 {
 	int evtchn = evtchn_from_irq(data->irq);
 
-	move_native_irq(data->irq);
+	irq_move_irq(data);
 
 	if (VALID_EVTCHN(evtchn)) {
 		mask_evtchn(evtchn);
@@ -639,8 +639,8 @@ int xen_bind_pirq_gsi_to_irq(unsigned gsi,
 	if (irq < 0)
 		goto out;
 
-	set_irq_chip_and_handler_name(irq, &xen_pirq_chip,
-				      handle_level_irq, name);
+	irq_set_chip_and_handler_name(irq, &xen_pirq_chip, handle_level_irq,
+				      name);
 
 	irq_op.irq = irq;
 	irq_op.vector = 0;
@@ -690,8 +690,8 @@ int xen_bind_pirq_msi_to_irq(struct pci_dev *dev, struct msi_desc *msidesc,
 	if (irq == -1)
 		goto out;
 
-	set_irq_chip_and_handler_name(irq, &xen_pirq_chip,
-				      handle_level_irq, name);
+	irq_set_chip_and_handler_name(irq, &xen_pirq_chip, handle_level_irq,
+				      name);
 
 	xen_irq_info_pirq_init(irq, 0, pirq, 0, vector, 0);
 	ret = irq_set_msi_desc(irq, msidesc);
@@ -772,7 +772,7 @@ int bind_evtchn_to_irq(unsigned int evtchn)
 		if (irq == -1)
 			goto out;
 
-		set_irq_chip_and_handler_name(irq, &xen_dynamic_chip,
+		irq_set_chip_and_handler_name(irq, &xen_dynamic_chip,
 					      handle_fasteoi_irq, "event");
 
 		xen_irq_info_evtchn_init(irq, evtchn);
@@ -799,7 +799,7 @@ static int bind_ipi_to_irq(unsigned int ipi, unsigned int cpu)
 		if (irq < 0)
 			goto out;
 
-		set_irq_chip_and_handler_name(irq, &xen_percpu_chip,
+		irq_set_chip_and_handler_name(irq, &xen_percpu_chip,
 					      handle_percpu_irq, "ipi");
 
 		bind_ipi.vcpu = cpu;
@@ -848,7 +848,7 @@ int bind_virq_to_irq(unsigned int virq, unsigned int cpu)
 		if (irq == -1)
 			goto out;
 
-		set_irq_chip_and_handler_name(irq, &xen_percpu_chip,
+		irq_set_chip_and_handler_name(irq, &xen_percpu_chip,
 					      handle_percpu_irq, "virq");
 
 		bind_virq.virq = virq;
@@ -1339,7 +1339,7 @@ static void ack_dynirq(struct irq_data *data)
 {
 	int evtchn = evtchn_from_irq(data->irq);
 
-	move_masked_irq(data->irq);
+	irq_move_masked_irq(data);
 
 	if (VALID_EVTCHN(evtchn))
 		unmask_evtchn(evtchn);
diff --git a/drivers/xen/gntdev.c b/drivers/xen/gntdev.c
index 017ce600fbc6..b0f9e8fb0052 100644
--- a/drivers/xen/gntdev.c
+++ b/drivers/xen/gntdev.c
@@ -273,7 +273,7 @@ static int __unmap_grant_pages(struct grant_map *map, int offset, int pages)
 				map->vma->vm_start + map->notify.addr;
 			err = copy_to_user(tmp, &err, 1);
 			if (err)
-				return err;
+				return -EFAULT;
 			map->notify.flags &= ~UNMAP_NOTIFY_CLEAR_BYTE;
 		} else if (pgno >= offset && pgno < offset + pages) {
 			uint8_t *tmp = kmap(map->pages[pgno]);
@@ -662,7 +662,7 @@ static int gntdev_mmap(struct file *flip, struct vm_area_struct *vma)
 	if (map->flags) {
 		if ((vma->vm_flags & VM_WRITE) &&
 				(map->flags & GNTMAP_readonly))
-			return -EINVAL;
+			goto out_unlock_put;
 	} else {
 		map->flags = GNTMAP_host_map;
 		if (!(vma->vm_flags & VM_WRITE))
@@ -700,6 +700,8 @@ unlock_out:
 	spin_unlock(&priv->lock);
 	return err;
 
+out_unlock_put:
+	spin_unlock(&priv->lock);
 out_put_map:
 	if (use_ptemod)
 		map->vma = NULL;
diff --git a/fs/adfs/map.c b/fs/adfs/map.c
index d1a5932bb0f1..6935f05202ac 100644
--- a/fs/adfs/map.c
+++ b/fs/adfs/map.c
@@ -51,7 +51,7 @@ static DEFINE_RWLOCK(adfs_map_lock);
 
 /*
  * This is fun.  We need to load up to 19 bits from the map at an
- * arbitary bit alignment.  (We're limited to 19 bits by F+ version 2).
+ * arbitrary bit alignment.  (We're limited to 19 bits by F+ version 2).
  */
 #define GET_FRAG_ID(_map,_start,_idmask)				\
 	({								\
diff --git a/fs/afs/cache.c b/fs/afs/cache.c
index 0fb315dd4d2a..577763c3d88b 100644
--- a/fs/afs/cache.c
+++ b/fs/afs/cache.c
@@ -98,7 +98,7 @@ static uint16_t afs_cell_cache_get_key(const void *cookie_netfs_data,
 }
 
 /*
- * provide new auxilliary cache data
+ * provide new auxiliary cache data
  */
 static uint16_t afs_cell_cache_get_aux(const void *cookie_netfs_data,
 				       void *buffer, uint16_t bufmax)
@@ -117,7 +117,7 @@ static uint16_t afs_cell_cache_get_aux(const void *cookie_netfs_data,
 }
 
 /*
- * check that the auxilliary data indicates that the entry is still valid
+ * check that the auxiliary data indicates that the entry is still valid
  */
 static enum fscache_checkaux afs_cell_cache_check_aux(void *cookie_netfs_data,
 						      const void *buffer,
@@ -150,7 +150,7 @@ static uint16_t afs_vlocation_cache_get_key(const void *cookie_netfs_data,
 }
 
 /*
- * provide new auxilliary cache data
+ * provide new auxiliary cache data
  */
 static uint16_t afs_vlocation_cache_get_aux(const void *cookie_netfs_data,
 					    void *buffer, uint16_t bufmax)
@@ -172,7 +172,7 @@ static uint16_t afs_vlocation_cache_get_aux(const void *cookie_netfs_data,
 }
 
 /*
- * check that the auxilliary data indicates that the entry is still valid
+ * check that the auxiliary data indicates that the entry is still valid
  */
 static
 enum fscache_checkaux afs_vlocation_cache_check_aux(void *cookie_netfs_data,
@@ -283,7 +283,7 @@ static void afs_vnode_cache_get_attr(const void *cookie_netfs_data,
 }
 
 /*
- * provide new auxilliary cache data
+ * provide new auxiliary cache data
  */
 static uint16_t afs_vnode_cache_get_aux(const void *cookie_netfs_data,
 					void *buffer, uint16_t bufmax)
@@ -309,7 +309,7 @@ static uint16_t afs_vnode_cache_get_aux(const void *cookie_netfs_data,
 }
 
 /*
- * check that the auxilliary data indicates that the entry is still valid
+ * check that the auxiliary data indicates that the entry is still valid
  */
 static enum fscache_checkaux afs_vnode_cache_check_aux(void *cookie_netfs_data,
 						       const void *buffer,
diff --git a/fs/afs/cell.c b/fs/afs/cell.c
index 0d5eeadf6121..3c090b7555ea 100644
--- a/fs/afs/cell.c
+++ b/fs/afs/cell.c
@@ -293,7 +293,7 @@ struct afs_cell *afs_cell_lookup(const char *name, unsigned namesz,
 		if (!cell) {
 			/* this should not happen unless user tries to mount
 			 * when root cell is not set. Return an impossibly
-			 * bizzare errno to alert the user. Things like
+			 * bizarre errno to alert the user. Things like
 			 * ENOENT might be "more appropriate" but they happen
 			 * for other reasons.
 			 */
diff --git a/fs/attr.c b/fs/attr.c
index 1007ed616314..91dbe2a107f2 100644
--- a/fs/attr.c
+++ b/fs/attr.c
@@ -128,7 +128,7 @@ EXPORT_SYMBOL(inode_newsize_ok);
  * setattr_copy must be called with i_mutex held.
  *
  * setattr_copy updates the inode's metadata with that specified
- * in attr. Noticably missing is inode size update, which is more complex
+ * in attr. Noticeably missing is inode size update, which is more complex
  * as it requires pagecache updates.
  *
  * The inode is not marked as dirty after this operation. The rationale is
diff --git a/fs/autofs4/autofs_i.h b/fs/autofs4/autofs_i.h
index 54f923792728..475f9c597cb7 100644
--- a/fs/autofs4/autofs_i.h
+++ b/fs/autofs4/autofs_i.h
@@ -61,8 +61,6 @@ do {							\
 		current->pid, __func__, ##args);	\
 } while (0)
 
-extern spinlock_t autofs4_lock;
-
 /* Unified info structure.  This is pointed to by both the dentry and
    inode structures.  Each file in the filesystem has an instance of this
    structure.  It holds a reference to the dentry, so dentries are never
diff --git a/fs/autofs4/dev-ioctl.c b/fs/autofs4/dev-ioctl.c
index 1442da4860e5..509fe1eb66ae 100644
--- a/fs/autofs4/dev-ioctl.c
+++ b/fs/autofs4/dev-ioctl.c
@@ -372,6 +372,10 @@ static int autofs_dev_ioctl_setpipefd(struct file *fp,
 		return -EBUSY;
 	} else {
 		struct file *pipe = fget(pipefd);
+		if (!pipe) {
+			err = -EBADF;
+			goto out;
+		}
 		if (!pipe->f_op || !pipe->f_op->write) {
 			err = -EPIPE;
 			fput(pipe);
diff --git a/fs/autofs4/expire.c b/fs/autofs4/expire.c
index f43100b9662b..450f529a4eae 100644
--- a/fs/autofs4/expire.c
+++ b/fs/autofs4/expire.c
@@ -87,18 +87,70 @@ done:
 }
 
 /*
+ * Calculate and dget next entry in the subdirs list under root.
+ */
+static struct dentry *get_next_positive_subdir(struct dentry *prev,
+						struct dentry *root)
+{
+	struct autofs_sb_info *sbi = autofs4_sbi(root->d_sb);
+	struct list_head *next;
+	struct dentry *p, *q;
+
+	spin_lock(&sbi->lookup_lock);
+
+	if (prev == NULL) {
+		spin_lock(&root->d_lock);
+		prev = dget_dlock(root);
+		next = prev->d_subdirs.next;
+		p = prev;
+		goto start;
+	}
+
+	p = prev;
+	spin_lock(&p->d_lock);
+again:
+	next = p->d_u.d_child.next;
+start:
+	if (next == &root->d_subdirs) {
+		spin_unlock(&p->d_lock);
+		spin_unlock(&sbi->lookup_lock);
+		dput(prev);
+		return NULL;
+	}
+
+	q = list_entry(next, struct dentry, d_u.d_child);
+
+	spin_lock_nested(&q->d_lock, DENTRY_D_LOCK_NESTED);
+	/* Negative dentry - try next */
+	if (!simple_positive(q)) {
+		spin_unlock(&p->d_lock);
+		p = q;
+		goto again;
+	}
+	dget_dlock(q);
+	spin_unlock(&q->d_lock);
+	spin_unlock(&p->d_lock);
+	spin_unlock(&sbi->lookup_lock);
+
+	dput(prev);
+
+	return q;
+}
+
+/*
  * Calculate and dget next entry in top down tree traversal.
  */
 static struct dentry *get_next_positive_dentry(struct dentry *prev,
 						struct dentry *root)
 {
+	struct autofs_sb_info *sbi = autofs4_sbi(root->d_sb);
 	struct list_head *next;
 	struct dentry *p, *ret;
 
 	if (prev == NULL)
 		return dget(root);
 
-	spin_lock(&autofs4_lock);
+	spin_lock(&sbi->lookup_lock);
 relock:
 	p = prev;
 	spin_lock(&p->d_lock);
@@ -110,7 +162,7 @@ again:
 
 			if (p == root) {
 				spin_unlock(&p->d_lock);
-				spin_unlock(&autofs4_lock);
+				spin_unlock(&sbi->lookup_lock);
 				dput(prev);
 				return NULL;
 			}
@@ -140,7 +192,7 @@ again:
 	dget_dlock(ret);
 	spin_unlock(&ret->d_lock);
 	spin_unlock(&p->d_lock);
-	spin_unlock(&autofs4_lock);
+	spin_unlock(&sbi->lookup_lock);
 
 	dput(prev);
 
@@ -290,11 +342,8 @@ struct dentry *autofs4_expire_direct(struct super_block *sb,
 	spin_lock(&sbi->fs_lock);
 	ino = autofs4_dentry_ino(root);
 	/* No point expiring a pending mount */
-	if (ino->flags & AUTOFS_INF_PENDING) {
-		spin_unlock(&sbi->fs_lock);
-		return NULL;
-	}
-	managed_dentry_set_transit(root);
+	if (ino->flags & AUTOFS_INF_PENDING)
+		goto out;
 	if (!autofs4_direct_busy(mnt, root, timeout, do_now)) {
 		struct autofs_info *ino = autofs4_dentry_ino(root);
 		ino->flags |= AUTOFS_INF_EXPIRING;
@@ -302,7 +351,7 @@ struct dentry *autofs4_expire_direct(struct super_block *sb,
 		spin_unlock(&sbi->fs_lock);
 		return root;
 	}
-	managed_dentry_clear_transit(root);
+out:
 	spin_unlock(&sbi->fs_lock);
 	dput(root);
 
@@ -336,13 +385,12 @@ struct dentry *autofs4_expire_indirect(struct super_block *sb,
 	timeout = sbi->exp_timeout;
 
 	dentry = NULL;
-	while ((dentry = get_next_positive_dentry(dentry, root))) {
+	while ((dentry = get_next_positive_subdir(dentry, root))) {
 		spin_lock(&sbi->fs_lock);
 		ino = autofs4_dentry_ino(dentry);
 		/* No point expiring a pending mount */
 		if (ino->flags & AUTOFS_INF_PENDING)
-			goto cont;
-		managed_dentry_set_transit(dentry);
+			goto next;
 
 		/*
 		 * Case 1: (i) indirect mount or top level pseudo direct mount
@@ -402,8 +450,6 @@ struct dentry *autofs4_expire_indirect(struct super_block *sb,
 			}
 		}
 next:
-		managed_dentry_clear_transit(dentry);
-cont:
 		spin_unlock(&sbi->fs_lock);
 	}
 	return NULL;
@@ -415,13 +461,13 @@ found:
 	ino->flags |= AUTOFS_INF_EXPIRING;
 	init_completion(&ino->expire_complete);
 	spin_unlock(&sbi->fs_lock);
-	spin_lock(&autofs4_lock);
+	spin_lock(&sbi->lookup_lock);
 	spin_lock(&expired->d_parent->d_lock);
 	spin_lock_nested(&expired->d_lock, DENTRY_D_LOCK_NESTED);
 	list_move(&expired->d_parent->d_subdirs, &expired->d_u.d_child);
 	spin_unlock(&expired->d_lock);
 	spin_unlock(&expired->d_parent->d_lock);
-	spin_unlock(&autofs4_lock);
+	spin_unlock(&sbi->lookup_lock);
 	return expired;
 }
 
@@ -484,8 +530,6 @@ int autofs4_expire_run(struct super_block *sb,
 	spin_lock(&sbi->fs_lock);
 	ino = autofs4_dentry_ino(dentry);
 	ino->flags &= ~AUTOFS_INF_EXPIRING;
-	if (!d_unhashed(dentry))
-		managed_dentry_clear_transit(dentry);
 	complete_all(&ino->expire_complete);
 	spin_unlock(&sbi->fs_lock);
 
@@ -513,9 +557,7 @@ int autofs4_do_expire_multi(struct super_block *sb, struct vfsmount *mnt,
 		spin_lock(&sbi->fs_lock);
 		ino->flags &= ~AUTOFS_INF_EXPIRING;
 		spin_lock(&dentry->d_lock);
-		if (ret)
-			__managed_dentry_clear_transit(dentry);
-		else {
+		if (!ret) {
 			if ((IS_ROOT(dentry) ||
 			    (autofs_type_indirect(sbi->type) &&
 			     IS_ROOT(dentry->d_parent))) &&
diff --git a/fs/autofs4/root.c b/fs/autofs4/root.c
index e6f84d26f4cf..f55ae23b137e 100644
--- a/fs/autofs4/root.c
+++ b/fs/autofs4/root.c
@@ -23,8 +23,6 @@
 
 #include "autofs_i.h"
 
-DEFINE_SPINLOCK(autofs4_lock);
-
 static int autofs4_dir_symlink(struct inode *,struct dentry *,const char *);
 static int autofs4_dir_unlink(struct inode *,struct dentry *);
 static int autofs4_dir_rmdir(struct inode *,struct dentry *);
@@ -125,15 +123,15 @@ static int autofs4_dir_open(struct inode *inode, struct file *file)
 	 * autofs file system so just let the libfs routines handle
 	 * it.
 	 */
-	spin_lock(&autofs4_lock);
+	spin_lock(&sbi->lookup_lock);
 	spin_lock(&dentry->d_lock);
 	if (!d_mountpoint(dentry) && list_empty(&dentry->d_subdirs)) {
 		spin_unlock(&dentry->d_lock);
-		spin_unlock(&autofs4_lock);
+		spin_unlock(&sbi->lookup_lock);
 		return -ENOENT;
 	}
 	spin_unlock(&dentry->d_lock);
-	spin_unlock(&autofs4_lock);
+	spin_unlock(&sbi->lookup_lock);
 
 out:
 	return dcache_dir_open(inode, file);
@@ -171,7 +169,6 @@ static struct dentry *autofs4_lookup_active(struct dentry *dentry)
 	const unsigned char *str = name->name;
 	struct list_head *p, *head;
 
-	spin_lock(&autofs4_lock);
 	spin_lock(&sbi->lookup_lock);
 	head = &sbi->active_list;
 	list_for_each(p, head) {
@@ -204,14 +201,12 @@ static struct dentry *autofs4_lookup_active(struct dentry *dentry)
 			dget_dlock(active);
 			spin_unlock(&active->d_lock);
 			spin_unlock(&sbi->lookup_lock);
-			spin_unlock(&autofs4_lock);
 			return active;
 		}
 next:
 		spin_unlock(&active->d_lock);
 	}
 	spin_unlock(&sbi->lookup_lock);
-	spin_unlock(&autofs4_lock);
 
 	return NULL;
 }
@@ -226,7 +221,6 @@ static struct dentry *autofs4_lookup_expiring(struct dentry *dentry)
 	const unsigned char *str = name->name;
 	struct list_head *p, *head;
 
-	spin_lock(&autofs4_lock);
 	spin_lock(&sbi->lookup_lock);
 	head = &sbi->expiring_list;
 	list_for_each(p, head) {
@@ -259,14 +253,12 @@ static struct dentry *autofs4_lookup_expiring(struct dentry *dentry)
 			dget_dlock(expiring);
 			spin_unlock(&expiring->d_lock);
 			spin_unlock(&sbi->lookup_lock);
-			spin_unlock(&autofs4_lock);
 			return expiring;
 		}
 next:
 		spin_unlock(&expiring->d_lock);
 	}
 	spin_unlock(&sbi->lookup_lock);
-	spin_unlock(&autofs4_lock);
 
 	return NULL;
 }
@@ -275,17 +267,16 @@ static int autofs4_mount_wait(struct dentry *dentry)
 {
 	struct autofs_sb_info *sbi = autofs4_sbi(dentry->d_sb);
 	struct autofs_info *ino = autofs4_dentry_ino(dentry);
-	int status;
+	int status = 0;
 
 	if (ino->flags & AUTOFS_INF_PENDING) {
 		DPRINTK("waiting for mount name=%.*s",
 			dentry->d_name.len, dentry->d_name.name);
 		status = autofs4_wait(sbi, dentry, NFY_MOUNT);
 		DPRINTK("mount wait done status=%d", status);
-		ino->last_used = jiffies;
-		return status;
 	}
-	return 0;
+	ino->last_used = jiffies;
+	return status;
 }
 
 static int do_expire_wait(struct dentry *dentry)
@@ -319,9 +310,12 @@ static struct dentry *autofs4_mountpoint_changed(struct path *path)
 	 */
 	if (autofs_type_indirect(sbi->type) && d_unhashed(dentry)) {
 		struct dentry *parent = dentry->d_parent;
+		struct autofs_info *ino;
 		struct dentry *new = d_lookup(parent, &dentry->d_name);
 		if (!new)
 			return NULL;
+		ino = autofs4_dentry_ino(new);
+		ino->last_used = jiffies;
 		dput(path->dentry);
 		path->dentry = new;
 	}
@@ -338,18 +332,6 @@ static struct vfsmount *autofs4_d_automount(struct path *path)
 	DPRINTK("dentry=%p %.*s",
 		dentry, dentry->d_name.len, dentry->d_name.name);
 
-	/*
-	 * Someone may have manually umounted this or it was a submount
-	 * that has gone away.
-	 */
-	spin_lock(&dentry->d_lock);
-	if (!d_mountpoint(dentry) && list_empty(&dentry->d_subdirs)) {
-		if (!(dentry->d_flags & DCACHE_MANAGE_TRANSIT) &&
-		     (dentry->d_flags & DCACHE_NEED_AUTOMOUNT))
-			__managed_dentry_set_transit(path->dentry);
-	}
-	spin_unlock(&dentry->d_lock);
-
 	/* The daemon never triggers a mount. */
 	if (autofs4_oz_mode(sbi))
 		return NULL;
@@ -418,18 +400,17 @@ static struct vfsmount *autofs4_d_automount(struct path *path)
 done:
 	if (!(ino->flags & AUTOFS_INF_EXPIRING)) {
 		/*
-		 * Any needed mounting has been completed and the path updated
-		 * so turn this into a normal dentry so we don't continually
-		 * call ->d_automount() and ->d_manage().
-		 */
-		spin_lock(&dentry->d_lock);
-		__managed_dentry_clear_transit(dentry);
-		/*
+		 * Any needed mounting has been completed and the path
+		 * updated so clear DCACHE_NEED_AUTOMOUNT so we don't
+		 * call ->d_automount() on rootless multi-mounts since
+		 * it can lead to an incorrect ELOOP error return.
+		 *
 		 * Only clear DMANAGED_AUTOMOUNT for rootless multi-mounts and
 		 * symlinks as in all other cases the dentry will be covered by
 		 * an actual mount so ->d_automount() won't be called during
 		 * the follow.
 		 */
+		spin_lock(&dentry->d_lock);
 		if ((!d_mountpoint(dentry) &&
 		    !list_empty(&dentry->d_subdirs)) ||
 		    (dentry->d_inode && S_ISLNK(dentry->d_inode->i_mode)))
@@ -455,6 +436,8 @@ int autofs4_d_manage(struct dentry *dentry, bool rcu_walk)
 
 	/* The daemon never waits. */
 	if (autofs4_oz_mode(sbi)) {
+		if (rcu_walk)
+			return 0;
 		if (!d_mountpoint(dentry))
 			return -EISDIR;
 		return 0;
@@ -612,12 +595,12 @@ static int autofs4_dir_unlink(struct inode *dir, struct dentry *dentry)
 
 	dir->i_mtime = CURRENT_TIME;
 
-	spin_lock(&autofs4_lock);
-	autofs4_add_expiring(dentry);
+	spin_lock(&sbi->lookup_lock);
+	__autofs4_add_expiring(dentry);
 	spin_lock(&dentry->d_lock);
 	__d_drop(dentry);
 	spin_unlock(&dentry->d_lock);
-	spin_unlock(&autofs4_lock);
+	spin_unlock(&sbi->lookup_lock);
 
 	return 0;
 }
@@ -629,7 +612,7 @@ static int autofs4_dir_unlink(struct inode *dir, struct dentry *dentry)
  * set the DMANAGED_AUTOMOUNT and DMANAGED_TRANSIT flags on the leaves
  * of the directory tree. There is no need to clear the automount flag
  * following a mount or restore it after an expire because these mounts
- * are always covered. However, it is neccessary to ensure that these
+ * are always covered. However, it is necessary to ensure that these
  * flags are clear on non-empty directories to avoid unnecessary calls
  * during path walks.
  */
@@ -686,20 +669,17 @@ static int autofs4_dir_rmdir(struct inode *dir, struct dentry *dentry)
 	if (!autofs4_oz_mode(sbi))
 		return -EACCES;
 
-	spin_lock(&autofs4_lock);
 	spin_lock(&sbi->lookup_lock);
 	spin_lock(&dentry->d_lock);
 	if (!list_empty(&dentry->d_subdirs)) {
 		spin_unlock(&dentry->d_lock);
 		spin_unlock(&sbi->lookup_lock);
-		spin_unlock(&autofs4_lock);
 		return -ENOTEMPTY;
 	}
 	__autofs4_add_expiring(dentry);
-	spin_unlock(&sbi->lookup_lock);
 	__d_drop(dentry);
 	spin_unlock(&dentry->d_lock);
-	spin_unlock(&autofs4_lock);
+	spin_unlock(&sbi->lookup_lock);
 
 	if (sbi->version < 5)
 		autofs_clear_leaf_automount_flags(dentry);
diff --git a/fs/autofs4/waitq.c b/fs/autofs4/waitq.c
index 56010056b2e6..25435987d6ae 100644
--- a/fs/autofs4/waitq.c
+++ b/fs/autofs4/waitq.c
@@ -197,12 +197,12 @@ rename_retry:
 
 	seq = read_seqbegin(&rename_lock);
 	rcu_read_lock();
-	spin_lock(&autofs4_lock);
+	spin_lock(&sbi->fs_lock);
 	for (tmp = dentry ; tmp != root ; tmp = tmp->d_parent)
 		len += tmp->d_name.len + 1;
 
 	if (!len || --len > NAME_MAX) {
-		spin_unlock(&autofs4_lock);
+		spin_unlock(&sbi->fs_lock);
 		rcu_read_unlock();
 		if (read_seqretry(&rename_lock, seq))
 			goto rename_retry;
@@ -218,7 +218,7 @@ rename_retry:
 		p -= tmp->d_name.len;
 		strncpy(p, tmp->d_name.name, tmp->d_name.len);
 	}
-	spin_unlock(&autofs4_lock);
+	spin_unlock(&sbi->fs_lock);
 	rcu_read_unlock();
 	if (read_seqretry(&rename_lock, seq))
 		goto rename_retry;
diff --git a/fs/befs/ChangeLog b/fs/befs/ChangeLog
index ce8c787916be..75a461cfaca6 100644
--- a/fs/befs/ChangeLog
+++ b/fs/befs/ChangeLog
@@ -24,7 +24,7 @@ Version 0.9 (2002-03-14)
 
 Version 0.64 (2002-02-07)
 ==========
-* Did the string comparision really right this time (btree.c) [WD]
+* Did the string comparison really right this time (btree.c) [WD]
 
 * Fixed up some places where I assumed that a long int could hold
 	a pointer value. (btree.c) [WD]
@@ -114,7 +114,7 @@ Version 0.6 (2001-12-15)
 	More flexible. Will soon be controllable at mount time 
 	(see TODO). [WD]
 
-* Rewrote datastream positon lookups.
+* Rewrote datastream position lookups.
 	(datastream.c) [WD]
 
 * Moved the TODO list to its own file.
@@ -150,7 +150,7 @@ Version 0.50 (2001-11-13)
 * Anton also told me that the blocksize is not allowed to be larger than 
 	the page size in linux, which is 4k i386. Oops. Added a test for 
 	(blocksize > PAGE_SIZE), and refuse to mount in that case. What this 
-	practicaly means is that 8k blocksize volumes won't work without a major
+	practically means is that 8k blocksize volumes won't work without a major
 	restructuring of the driver (or an alpha or other 64bit hardware). [WD]
 
 * Cleaned up the befs_count_blocks() function. Much smarter now. 
@@ -183,7 +183,7 @@ Version 0.45 (2001-10-29)
 	structures into the generic pointer fields of the public structures 
 	with kmalloc(). put_super and put_inode free them. This allows us not 
 	to have to touch the definitions of the public structures in 
-	include/linux/fs.h. Also, befs_inode_info is huge (becuase of the 
+	include/linux/fs.h. Also, befs_inode_info is huge (because of the 
 	symlink string). (super.c, inode.c, befs_fs.h) [WD]
 
 * Fixed a thinko that was corrupting file reads after the first block_run 
@@ -404,7 +404,7 @@ Version 0.4 (2001-10-28)
 
 * Fixed compile errors on 2.4.1 kernel (WD)
 	Resolve rejected patches
-	Accomodate changed NLS interface (util.h)
+	Accommodate changed NLS interface (util.h)
 	Needed to include <linux/slab.h> in most files
 	Makefile changes
 	fs/Config.in changes
diff --git a/fs/befs/befs_fs_types.h b/fs/befs/befs_fs_types.h
index 7893eaa1e58c..eb557d9dc8be 100644
--- a/fs/befs/befs_fs_types.h
+++ b/fs/befs/befs_fs_types.h
@@ -234,7 +234,7 @@ typedef struct {
 } PACKED befs_btree_super;
 
 /*
- * Header stucture of each btree node
+ * Header structure of each btree node
  */
 typedef struct {
 	fs64 left;
diff --git a/fs/befs/btree.c b/fs/befs/btree.c
index 4202db7496cb..a66c9b1136e0 100644
--- a/fs/befs/btree.c
+++ b/fs/befs/btree.c
@@ -5,7 +5,7 @@
  *
  * Licensed under the GNU GPL. See the file COPYING for details.
  *
- * 2002-02-05: Sergey S. Kostyliov added binary search withing
+ * 2002-02-05: Sergey S. Kostyliov added binary search within
  * 		btree nodes.
  *
  * Many thanks to:
diff --git a/fs/befs/linuxvfs.c b/fs/befs/linuxvfs.c
index 06457ed8f3e7..54b8c28bebc8 100644
--- a/fs/befs/linuxvfs.c
+++ b/fs/befs/linuxvfs.c
@@ -734,7 +734,7 @@ parse_options(char *options, befs_mount_options * opts)
 
 /* This function has the responsibiltiy of getting the
  * filesystem ready for unmounting. 
- * Basicly, we free everything that we allocated in
+ * Basically, we free everything that we allocated in
  * befs_read_inode
  */
 static void
diff --git a/fs/binfmt_flat.c b/fs/binfmt_flat.c
index 811384bec8de..397d3057d336 100644
--- a/fs/binfmt_flat.c
+++ b/fs/binfmt_flat.c
@@ -717,7 +717,7 @@ static int load_flat_file(struct linux_binprm * bprm,
 	 * help simplify all this mumbo jumbo
 	 *
 	 * We've got two different sections of relocation entries.
-	 * The first is the GOT which resides at the begining of the data segment
+	 * The first is the GOT which resides at the beginning of the data segment
 	 * and is terminated with a -1.  This one can be relocated in place.
 	 * The second is the extra relocation entries tacked after the image's
 	 * data segment. These require a little more processing as the entry is
diff --git a/fs/bio.c b/fs/bio.c
index 4d6d4b6c2bf1..840a0d755248 100644
--- a/fs/bio.c
+++ b/fs/bio.c
@@ -1436,7 +1436,7 @@ EXPORT_SYMBOL(bio_flush_dcache_pages);
  *   preferred way to end I/O on a bio, it takes care of clearing
  *   BIO_UPTODATE on error. @error is 0 on success, and and one of the
  *   established -Exxxx (-EIO, for instance) error values in case
- *   something went wrong. Noone should call bi_end_io() directly on a
+ *   something went wrong. No one should call bi_end_io() directly on a
  *   bio unless they own it and thus know that it has an end_io
  *   function.
  **/
diff --git a/fs/block_dev.c b/fs/block_dev.c
index 7d02afb2b7f4..5147bdd3b8e1 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -55,11 +55,13 @@ EXPORT_SYMBOL(I_BDEV);
 static void bdev_inode_switch_bdi(struct inode *inode,
 			struct backing_dev_info *dst)
 {
-	spin_lock(&inode_lock);
+	spin_lock(&inode_wb_list_lock);
+	spin_lock(&inode->i_lock);
 	inode->i_data.backing_dev_info = dst;
 	if (inode->i_state & I_DIRTY)
 		list_move(&inode->i_wb_list, &dst->wb.b_dirty);
-	spin_unlock(&inode_lock);
+	spin_unlock(&inode->i_lock);
+	spin_unlock(&inode_wb_list_lock);
 }
 
 static sector_t max_block(struct block_device *bdev)
@@ -651,7 +653,7 @@ void bd_forget(struct inode *inode)
  * @whole: whole block device containing @bdev, may equal @bdev
  * @holder: holder trying to claim @bdev
  *
- * Test whther @bdev can be claimed by @holder.
+ * Test whether @bdev can be claimed by @holder.
  *
  * CONTEXT:
  * spin_lock(&bdev_lock).
diff --git a/fs/btrfs/btrfs_inode.h b/fs/btrfs/btrfs_inode.h
index ccc991c542df..57c3bb2884ce 100644
--- a/fs/btrfs/btrfs_inode.h
+++ b/fs/btrfs/btrfs_inode.h
@@ -136,9 +136,8 @@ struct btrfs_inode {
 	 * items we think we'll end up using, and reserved_extents is the number
 	 * of extent items we've reserved metadata for.
 	 */
-	spinlock_t accounting_lock;
 	atomic_t outstanding_extents;
-	int reserved_extents;
+	atomic_t reserved_extents;
 
 	/*
 	 * ordered_data_close is set by truncate when a file that used
diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c
index 4d2110eafe29..41d1d7c70e29 100644
--- a/fs/btrfs/compression.c
+++ b/fs/btrfs/compression.c
@@ -340,6 +340,8 @@ int btrfs_submit_compressed_write(struct inode *inode, u64 start,
 
 	WARN_ON(start & ((u64)PAGE_CACHE_SIZE - 1));
 	cb = kmalloc(compressed_bio_size(root, compressed_len), GFP_NOFS);
+	if (!cb)
+		return -ENOMEM;
 	atomic_set(&cb->pending_bios, 0);
 	cb->errors = 0;
 	cb->inode = inode;
@@ -354,6 +356,10 @@ int btrfs_submit_compressed_write(struct inode *inode, u64 start,
 	bdev = BTRFS_I(inode)->root->fs_info->fs_devices->latest_bdev;
 
 	bio = compressed_bio_alloc(bdev, first_byte, GFP_NOFS);
+	if(!bio) {
+		kfree(cb);
+		return -ENOMEM;
+	}
 	bio->bi_private = cb;
 	bio->bi_end_io = end_compressed_bio_write;
 	atomic_inc(&cb->pending_bios);
@@ -657,8 +663,9 @@ int btrfs_submit_compressed_read(struct inode *inode, struct bio *bio,
 			atomic_inc(&cb->pending_bios);
 
 			if (!(BTRFS_I(inode)->flags & BTRFS_INODE_NODATASUM)) {
-				btrfs_lookup_bio_sums(root, inode, comp_bio,
-						      sums);
+				ret = btrfs_lookup_bio_sums(root, inode,
+							comp_bio, sums);
+				BUG_ON(ret);
 			}
 			sums += (comp_bio->bi_size + root->sectorsize - 1) /
 				root->sectorsize;
@@ -683,8 +690,10 @@ int btrfs_submit_compressed_read(struct inode *inode, struct bio *bio,
 	ret = btrfs_bio_wq_end_io(root->fs_info, comp_bio, 0);
 	BUG_ON(ret);
 
-	if (!(BTRFS_I(inode)->flags & BTRFS_INODE_NODATASUM))
-		btrfs_lookup_bio_sums(root, inode, comp_bio, sums);
+	if (!(BTRFS_I(inode)->flags & BTRFS_INODE_NODATASUM)) {
+		ret = btrfs_lookup_bio_sums(root, inode, comp_bio, sums);
+		BUG_ON(ret);
+	}
 
 	ret = btrfs_map_bio(root, READ, comp_bio, mirror_num, 0);
 	BUG_ON(ret);
diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index b5baff0dccfe..84d7ca1fe0ba 100644
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -147,10 +147,11 @@ noinline void btrfs_release_path(struct btrfs_root *root, struct btrfs_path *p)
 struct extent_buffer *btrfs_root_node(struct btrfs_root *root)
 {
 	struct extent_buffer *eb;
-	spin_lock(&root->node_lock);
-	eb = root->node;
+
+	rcu_read_lock();
+	eb = rcu_dereference(root->node);
 	extent_buffer_get(eb);
-	spin_unlock(&root->node_lock);
+	rcu_read_unlock();
 	return eb;
 }
 
@@ -165,14 +166,8 @@ struct extent_buffer *btrfs_lock_root_node(struct btrfs_root *root)
 	while (1) {
 		eb = btrfs_root_node(root);
 		btrfs_tree_lock(eb);
-
-		spin_lock(&root->node_lock);
-		if (eb == root->node) {
-			spin_unlock(&root->node_lock);
+		if (eb == root->node)
 			break;
-		}
-		spin_unlock(&root->node_lock);
-
 		btrfs_tree_unlock(eb);
 		free_extent_buffer(eb);
 	}
@@ -458,10 +453,8 @@ static noinline int __btrfs_cow_block(struct btrfs_trans_handle *trans,
 		else
 			parent_start = 0;
 
-		spin_lock(&root->node_lock);
-		root->node = cow;
 		extent_buffer_get(cow);
-		spin_unlock(&root->node_lock);
+		rcu_assign_pointer(root->node, cow);
 
 		btrfs_free_tree_block(trans, root, buf, parent_start,
 				      last_ref);
@@ -542,6 +535,9 @@ noinline int btrfs_cow_block(struct btrfs_trans_handle *trans,
 
 	ret = __btrfs_cow_block(trans, root, buf, parent,
 				 parent_slot, cow_ret, search_start, 0);
+
+	trace_btrfs_cow_block(root, buf, *cow_ret);
+
 	return ret;
 }
 
@@ -686,6 +682,8 @@ int btrfs_realloc_node(struct btrfs_trans_handle *trans,
 			if (!cur) {
 				cur = read_tree_block(root, blocknr,
 							 blocksize, gen);
+				if (!cur)
+					return -EIO;
 			} else if (!uptodate) {
 				btrfs_read_buffer(cur, gen);
 			}
@@ -732,122 +730,6 @@ static inline unsigned int leaf_data_end(struct btrfs_root *root,
 	return btrfs_item_offset_nr(leaf, nr - 1);
 }
 
-/*
- * extra debugging checks to make sure all the items in a key are
- * well formed and in the proper order
- */
-static int check_node(struct btrfs_root *root, struct btrfs_path *path,
-		      int level)
-{
-	struct extent_buffer *parent = NULL;
-	struct extent_buffer *node = path->nodes[level];
-	struct btrfs_disk_key parent_key;
-	struct btrfs_disk_key node_key;
-	int parent_slot;
-	int slot;
-	struct btrfs_key cpukey;
-	u32 nritems = btrfs_header_nritems(node);
-
-	if (path->nodes[level + 1])
-		parent = path->nodes[level + 1];
-
-	slot = path->slots[level];
-	BUG_ON(nritems == 0);
-	if (parent) {
-		parent_slot = path->slots[level + 1];
-		btrfs_node_key(parent, &parent_key, parent_slot);
-		btrfs_node_key(node, &node_key, 0);
-		BUG_ON(memcmp(&parent_key, &node_key,
-			      sizeof(struct btrfs_disk_key)));
-		BUG_ON(btrfs_node_blockptr(parent, parent_slot) !=
-		       btrfs_header_bytenr(node));
-	}
-	BUG_ON(nritems > BTRFS_NODEPTRS_PER_BLOCK(root));
-	if (slot != 0) {
-		btrfs_node_key_to_cpu(node, &cpukey, slot - 1);
-		btrfs_node_key(node, &node_key, slot);
-		BUG_ON(comp_keys(&node_key, &cpukey) <= 0);
-	}
-	if (slot < nritems - 1) {
-		btrfs_node_key_to_cpu(node, &cpukey, slot + 1);
-		btrfs_node_key(node, &node_key, slot);
-		BUG_ON(comp_keys(&node_key, &cpukey) >= 0);
-	}
-	return 0;
-}
-
-/*
- * extra checking to make sure all the items in a leaf are
- * well formed and in the proper order
- */
-static int check_leaf(struct btrfs_root *root, struct btrfs_path *path,
-		      int level)
-{
-	struct extent_buffer *leaf = path->nodes[level];
-	struct extent_buffer *parent = NULL;
-	int parent_slot;
-	struct btrfs_key cpukey;
-	struct btrfs_disk_key parent_key;
-	struct btrfs_disk_key leaf_key;
-	int slot = path->slots[0];
-
-	u32 nritems = btrfs_header_nritems(leaf);
-
-	if (path->nodes[level + 1])
-		parent = path->nodes[level + 1];
-
-	if (nritems == 0)
-		return 0;
-
-	if (parent) {
-		parent_slot = path->slots[level + 1];
-		btrfs_node_key(parent, &parent_key, parent_slot);
-		btrfs_item_key(leaf, &leaf_key, 0);
-
-		BUG_ON(memcmp(&parent_key, &leaf_key,
-		       sizeof(struct btrfs_disk_key)));
-		BUG_ON(btrfs_node_blockptr(parent, parent_slot) !=
-		       btrfs_header_bytenr(leaf));
-	}
-	if (slot != 0 && slot < nritems - 1) {
-		btrfs_item_key(leaf, &leaf_key, slot);
-		btrfs_item_key_to_cpu(leaf, &cpukey, slot - 1);
-		if (comp_keys(&leaf_key, &cpukey) <= 0) {
-			btrfs_print_leaf(root, leaf);
-			printk(KERN_CRIT "slot %d offset bad key\n", slot);
-			BUG_ON(1);
-		}
-		if (btrfs_item_offset_nr(leaf, slot - 1) !=
-		       btrfs_item_end_nr(leaf, slot)) {
-			btrfs_print_leaf(root, leaf);
-			printk(KERN_CRIT "slot %d offset bad\n", slot);
-			BUG_ON(1);
-		}
-	}
-	if (slot < nritems - 1) {
-		btrfs_item_key(leaf, &leaf_key, slot);
-		btrfs_item_key_to_cpu(leaf, &cpukey, slot + 1);
-		BUG_ON(comp_keys(&leaf_key, &cpukey) >= 0);
-		if (btrfs_item_offset_nr(leaf, slot) !=
-			btrfs_item_end_nr(leaf, slot + 1)) {
-			btrfs_print_leaf(root, leaf);
-			printk(KERN_CRIT "slot %d offset bad\n", slot);
-			BUG_ON(1);
-		}
-	}
-	BUG_ON(btrfs_item_offset_nr(leaf, 0) +
-	       btrfs_item_size_nr(leaf, 0) != BTRFS_LEAF_DATA_SIZE(root));
-	return 0;
-}
-
-static noinline int check_block(struct btrfs_root *root,
-				struct btrfs_path *path, int level)
-{
-	return 0;
-	if (level == 0)
-		return check_leaf(root, path, level);
-	return check_node(root, path, level);
-}
 
 /*
  * search for key in the extent_buffer.  The items start at offset p,
@@ -1046,9 +928,7 @@ static noinline int balance_level(struct btrfs_trans_handle *trans,
 			goto enospc;
 		}
 
-		spin_lock(&root->node_lock);
-		root->node = child;
-		spin_unlock(&root->node_lock);
+		rcu_assign_pointer(root->node, child);
 
 		add_root_to_dirty_list(root);
 		btrfs_tree_unlock(child);
@@ -1188,7 +1068,6 @@ static noinline int balance_level(struct btrfs_trans_handle *trans,
 		}
 	}
 	/* double check we haven't messed things up */
-	check_block(root, path, level);
 	if (orig_ptr !=
 	    btrfs_node_blockptr(path->nodes[level], path->slots[level]))
 		BUG();
@@ -1798,12 +1677,6 @@ cow_done:
 		if (!cow)
 			btrfs_unlock_up_safe(p, level + 1);
 
-		ret = check_block(root, p, level);
-		if (ret) {
-			ret = -1;
-			goto done;
-		}
-
 		ret = bin_search(b, key, level, &slot);
 
 		if (level != 0) {
@@ -2130,10 +2003,8 @@ static noinline int insert_new_root(struct btrfs_trans_handle *trans,
 
 	btrfs_mark_buffer_dirty(c);
 
-	spin_lock(&root->node_lock);
 	old = root->node;
-	root->node = c;
-	spin_unlock(&root->node_lock);
+	rcu_assign_pointer(root->node, c);
 
 	/* the super has an extra ref to root->node */
 	free_extent_buffer(old);
@@ -3840,7 +3711,8 @@ int btrfs_insert_item(struct btrfs_trans_handle *trans, struct btrfs_root
 	unsigned long ptr;
 
 	path = btrfs_alloc_path();
-	BUG_ON(!path);
+	if (!path)
+		return -ENOMEM;
 	ret = btrfs_insert_empty_item(trans, root, path, cpu_key, data_size);
 	if (!ret) {
 		leaf = path->nodes[0];
@@ -4217,6 +4089,7 @@ find_next_key:
 		}
 		btrfs_set_path_blocking(path);
 		cur = read_node_slot(root, cur, slot);
+		BUG_ON(!cur);
 
 		btrfs_tree_lock(cur);
 
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 7f78cc78fdd0..3458b5725540 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -28,6 +28,7 @@
 #include <linux/wait.h>
 #include <linux/slab.h>
 #include <linux/kobject.h>
+#include <trace/events/btrfs.h>
 #include <asm/kmap_types.h>
 #include "extent_io.h"
 #include "extent_map.h"
@@ -40,6 +41,7 @@ extern struct kmem_cache *btrfs_trans_handle_cachep;
 extern struct kmem_cache *btrfs_transaction_cachep;
 extern struct kmem_cache *btrfs_bit_radix_cachep;
 extern struct kmem_cache *btrfs_path_cachep;
+extern struct kmem_cache *btrfs_free_space_cachep;
 struct btrfs_ordered_sum;
 
 #define BTRFS_MAGIC "_BHRfS_M"
@@ -782,9 +784,6 @@ struct btrfs_free_cluster {
 	/* first extent starting offset */
 	u64 window_start;
 
-	/* if this cluster simply points at a bitmap in the block group */
-	bool points_to_bitmap;
-
 	struct btrfs_block_group_cache *block_group;
 	/*
 	 * when a cluster is allocated from a block group, we put the
@@ -1283,6 +1282,9 @@ struct btrfs_root {
 #define BTRFS_INODE_NODUMP		(1 << 8)
 #define BTRFS_INODE_NOATIME		(1 << 9)
 #define BTRFS_INODE_DIRSYNC		(1 << 10)
+#define BTRFS_INODE_COMPRESS		(1 << 11)
+
+#define BTRFS_INODE_ROOT_ITEM_INIT	(1 << 31)
 
 /* some macros to generate set/get funcs for the struct fields.  This
  * assumes there is a lefoo_to_cpu for every type, so lets make a simple
@@ -2157,6 +2159,8 @@ int btrfs_free_extent(struct btrfs_trans_handle *trans,
 		      u64 root_objectid, u64 owner, u64 offset);
 
 int btrfs_free_reserved_extent(struct btrfs_root *root, u64 start, u64 len);
+int btrfs_update_reserved_bytes(struct btrfs_block_group_cache *cache,
+				u64 num_bytes, int reserve, int sinfo);
 int btrfs_prepare_extent_commit(struct btrfs_trans_handle *trans,
 				struct btrfs_root *root);
 int btrfs_finish_extent_commit(struct btrfs_trans_handle *trans,
@@ -2227,10 +2231,12 @@ u64 btrfs_account_ro_block_groups_free_space(struct btrfs_space_info *sinfo);
 int btrfs_error_unpin_extent_range(struct btrfs_root *root,
 				   u64 start, u64 end);
 int btrfs_error_discard_extent(struct btrfs_root *root, u64 bytenr,
-			       u64 num_bytes);
+			       u64 num_bytes, u64 *actual_bytes);
 int btrfs_force_chunk_alloc(struct btrfs_trans_handle *trans,
 			    struct btrfs_root *root, u64 type);
+int btrfs_trim_fs(struct btrfs_root *root, struct fstrim_range *range);
 
+int btrfs_init_space_info(struct btrfs_fs_info *fs_info);
 /* ctree.c */
 int btrfs_bin_search(struct extent_buffer *eb, struct btrfs_key *key,
 		     int level, int *slot);
@@ -2355,6 +2361,8 @@ int btrfs_find_dead_roots(struct btrfs_root *root, u64 objectid);
 int btrfs_find_orphan_roots(struct btrfs_root *tree_root);
 int btrfs_set_root_node(struct btrfs_root_item *item,
 			struct extent_buffer *node);
+void btrfs_check_and_init_root_item(struct btrfs_root_item *item);
+
 /* dir-item.c */
 int btrfs_insert_dir_item(struct btrfs_trans_handle *trans,
 			  struct btrfs_root *root, const char *name,
@@ -2392,6 +2400,9 @@ struct btrfs_dir_item *btrfs_lookup_xattr(struct btrfs_trans_handle *trans,
 					  struct btrfs_path *path, u64 dir,
 					  const char *name, u16 name_len,
 					  int mod);
+int verify_dir_item(struct btrfs_root *root,
+		    struct extent_buffer *leaf,
+		    struct btrfs_dir_item *dir_item);
 
 /* orphan.c */
 int btrfs_insert_orphan_item(struct btrfs_trans_handle *trans,
@@ -2528,7 +2539,7 @@ int btrfs_update_inode(struct btrfs_trans_handle *trans,
 			      struct inode *inode);
 int btrfs_orphan_add(struct btrfs_trans_handle *trans, struct inode *inode);
 int btrfs_orphan_del(struct btrfs_trans_handle *trans, struct inode *inode);
-void btrfs_orphan_cleanup(struct btrfs_root *root);
+int btrfs_orphan_cleanup(struct btrfs_root *root);
 void btrfs_orphan_pre_snapshot(struct btrfs_trans_handle *trans,
 				struct btrfs_pending_snapshot *pending,
 				u64 *bytes_to_reserve);
@@ -2536,7 +2547,7 @@ void btrfs_orphan_post_snapshot(struct btrfs_trans_handle *trans,
 				struct btrfs_pending_snapshot *pending);
 void btrfs_orphan_commit_root(struct btrfs_trans_handle *trans,
 			      struct btrfs_root *root);
-int btrfs_cont_expand(struct inode *inode, loff_t size);
+int btrfs_cont_expand(struct inode *inode, loff_t oldsize, loff_t size);
 int btrfs_invalidate_inodes(struct btrfs_root *root);
 void btrfs_add_delayed_iput(struct inode *inode);
 void btrfs_run_delayed_iputs(struct btrfs_root *root);
diff --git a/fs/btrfs/delayed-ref.c b/fs/btrfs/delayed-ref.c
index e807b143b857..bce28f653899 100644
--- a/fs/btrfs/delayed-ref.c
+++ b/fs/btrfs/delayed-ref.c
@@ -483,6 +483,8 @@ static noinline int add_delayed_ref_head(struct btrfs_trans_handle *trans,
 	INIT_LIST_HEAD(&head_ref->cluster);
 	mutex_init(&head_ref->mutex);
 
+	trace_btrfs_delayed_ref_head(ref, head_ref, action);
+
 	existing = tree_insert(&delayed_refs->root, &ref->rb_node);
 
 	if (existing) {
@@ -537,6 +539,8 @@ static noinline int add_delayed_tree_ref(struct btrfs_trans_handle *trans,
 	}
 	full_ref->level = level;
 
+	trace_btrfs_delayed_tree_ref(ref, full_ref, action);
+
 	existing = tree_insert(&delayed_refs->root, &ref->rb_node);
 
 	if (existing) {
@@ -591,6 +595,8 @@ static noinline int add_delayed_data_ref(struct btrfs_trans_handle *trans,
 	full_ref->objectid = owner;
 	full_ref->offset = offset;
 
+	trace_btrfs_delayed_data_ref(ref, full_ref, action);
+
 	existing = tree_insert(&delayed_refs->root, &ref->rb_node);
 
 	if (existing) {
diff --git a/fs/btrfs/dir-item.c b/fs/btrfs/dir-item.c
index f0cad5ae5be7..c62f02f6ae69 100644
--- a/fs/btrfs/dir-item.c
+++ b/fs/btrfs/dir-item.c
@@ -151,7 +151,7 @@ int btrfs_insert_dir_item(struct btrfs_trans_handle *trans, struct btrfs_root
 		ret = PTR_ERR(dir_item);
 		if (ret == -EEXIST)
 			goto second_insert;
-		goto out;
+		goto out_free;
 	}
 
 	leaf = path->nodes[0];
@@ -170,7 +170,7 @@ second_insert:
 	/* FIXME, use some real flag for selecting the extra index */
 	if (root == root->fs_info->tree_root) {
 		ret = 0;
-		goto out;
+		goto out_free;
 	}
 	btrfs_release_path(root, path);
 
@@ -180,7 +180,7 @@ second_insert:
 					name, name_len);
 	if (IS_ERR(dir_item)) {
 		ret2 = PTR_ERR(dir_item);
-		goto out;
+		goto out_free;
 	}
 	leaf = path->nodes[0];
 	btrfs_cpu_key_to_disk(&disk_key, location);
@@ -192,7 +192,9 @@ second_insert:
 	name_ptr = (unsigned long)(dir_item + 1);
 	write_extent_buffer(leaf, name, name_ptr, name_len);
 	btrfs_mark_buffer_dirty(leaf);
-out:
+
+out_free:
+
 	btrfs_free_path(path);
 	if (ret)
 		return ret;
@@ -377,6 +379,9 @@ struct btrfs_dir_item *btrfs_match_dir_item_name(struct btrfs_root *root,
 
 	leaf = path->nodes[0];
 	dir_item = btrfs_item_ptr(leaf, path->slots[0], struct btrfs_dir_item);
+	if (verify_dir_item(root, leaf, dir_item))
+		return NULL;
+
 	total_len = btrfs_item_size_nr(leaf, path->slots[0]);
 	while (cur < total_len) {
 		this_len = sizeof(*dir_item) +
@@ -429,3 +434,35 @@ int btrfs_delete_one_dir_name(struct btrfs_trans_handle *trans,
 	}
 	return ret;
 }
+
+int verify_dir_item(struct btrfs_root *root,
+		    struct extent_buffer *leaf,
+		    struct btrfs_dir_item *dir_item)
+{
+	u16 namelen = BTRFS_NAME_LEN;
+	u8 type = btrfs_dir_type(leaf, dir_item);
+
+	if (type >= BTRFS_FT_MAX) {
+		printk(KERN_CRIT "btrfs: invalid dir item type: %d\n",
+		       (int)type);
+		return 1;
+	}
+
+	if (type == BTRFS_FT_XATTR)
+		namelen = XATTR_NAME_MAX;
+
+	if (btrfs_dir_name_len(leaf, dir_item) > namelen) {
+		printk(KERN_CRIT "btrfS: invalid dir item name len: %u\n",
+		       (unsigned)btrfs_dir_data_len(leaf, dir_item));
+		return 1;
+	}
+
+	/* BTRFS_MAX_XATTR_SIZE is the same for all dir items */
+	if (btrfs_dir_data_len(leaf, dir_item) > BTRFS_MAX_XATTR_SIZE(root)) {
+		printk(KERN_CRIT "btrfs: invalid dir item data len: %u\n",
+		       (unsigned)btrfs_dir_data_len(leaf, dir_item));
+		return 1;
+	}
+
+	return 0;
+}
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 830d261d0e6b..8f1d44ba332f 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -29,6 +29,7 @@
 #include <linux/crc32c.h>
 #include <linux/slab.h>
 #include <linux/migrate.h>
+#include <asm/unaligned.h>
 #include "compat.h"
 #include "ctree.h"
 #include "disk-io.h"
@@ -198,7 +199,7 @@ u32 btrfs_csum_data(struct btrfs_root *root, char *data, u32 seed, size_t len)
 
 void btrfs_csum_final(u32 crc, char *result)
 {
-	*(__le32 *)result = ~cpu_to_le32(crc);
+	put_unaligned_le32(~crc, result);
 }
 
 /*
@@ -323,6 +324,7 @@ static int btree_read_extent_buffer_pages(struct btrfs_root *root,
 	int num_copies = 0;
 	int mirror_num = 0;
 
+	clear_bit(EXTENT_BUFFER_CORRUPT, &eb->bflags);
 	io_tree = &BTRFS_I(root->fs_info->btree_inode)->io_tree;
 	while (1) {
 		ret = read_extent_buffer_pages(io_tree, eb, start, 1,
@@ -331,6 +333,14 @@ static int btree_read_extent_buffer_pages(struct btrfs_root *root,
 		    !verify_parent_transid(io_tree, eb, parent_transid))
 			return ret;
 
+		/*
+		 * This buffer's crc is fine, but its contents are corrupted, so
+		 * there is no reason to read the other copies, they won't be
+		 * any less wrong.
+		 */
+		if (test_bit(EXTENT_BUFFER_CORRUPT, &eb->bflags))
+			return ret;
+
 		num_copies = btrfs_num_copies(&root->fs_info->mapping_tree,
 					      eb->start, eb->len);
 		if (num_copies == 1)
@@ -419,6 +429,73 @@ static int check_tree_block_fsid(struct btrfs_root *root,
 	return ret;
 }
 
+#define CORRUPT(reason, eb, root, slot)				\
+	printk(KERN_CRIT "btrfs: corrupt leaf, %s: block=%llu,"	\
+	       "root=%llu, slot=%d\n", reason,			\
+	       (unsigned long long)btrfs_header_bytenr(eb),	\
+	       (unsigned long long)root->objectid, slot)
+
+static noinline int check_leaf(struct btrfs_root *root,
+			       struct extent_buffer *leaf)
+{
+	struct btrfs_key key;
+	struct btrfs_key leaf_key;
+	u32 nritems = btrfs_header_nritems(leaf);
+	int slot;
+
+	if (nritems == 0)
+		return 0;
+
+	/* Check the 0 item */
+	if (btrfs_item_offset_nr(leaf, 0) + btrfs_item_size_nr(leaf, 0) !=
+	    BTRFS_LEAF_DATA_SIZE(root)) {
+		CORRUPT("invalid item offset size pair", leaf, root, 0);
+		return -EIO;
+	}
+
+	/*
+	 * Check to make sure each items keys are in the correct order and their
+	 * offsets make sense.  We only have to loop through nritems-1 because
+	 * we check the current slot against the next slot, which verifies the
+	 * next slot's offset+size makes sense and that the current's slot
+	 * offset is correct.
+	 */
+	for (slot = 0; slot < nritems - 1; slot++) {
+		btrfs_item_key_to_cpu(leaf, &leaf_key, slot);
+		btrfs_item_key_to_cpu(leaf, &key, slot + 1);
+
+		/* Make sure the keys are in the right order */
+		if (btrfs_comp_cpu_keys(&leaf_key, &key) >= 0) {
+			CORRUPT("bad key order", leaf, root, slot);
+			return -EIO;
+		}
+
+		/*
+		 * Make sure the offset and ends are right, remember that the
+		 * item data starts at the end of the leaf and grows towards the
+		 * front.
+		 */
+		if (btrfs_item_offset_nr(leaf, slot) !=
+			btrfs_item_end_nr(leaf, slot + 1)) {
+			CORRUPT("slot offset bad", leaf, root, slot);
+			return -EIO;
+		}
+
+		/*
+		 * Check to make sure that we don't point outside of the leaf,
+		 * just incase all the items are consistent to eachother, but
+		 * all point outside of the leaf.
+		 */
+		if (btrfs_item_end_nr(leaf, slot) >
+		    BTRFS_LEAF_DATA_SIZE(root)) {
+			CORRUPT("slot end outside of leaf", leaf, root, slot);
+			return -EIO;
+		}
+	}
+
+	return 0;
+}
+
 #ifdef CONFIG_DEBUG_LOCK_ALLOC
 void btrfs_set_buffer_lockdep_class(struct extent_buffer *eb, int level)
 {
@@ -485,8 +562,20 @@ static int btree_readpage_end_io_hook(struct page *page, u64 start, u64 end,
 	btrfs_set_buffer_lockdep_class(eb, found_level);
 
 	ret = csum_tree_block(root, eb, 1);
-	if (ret)
+	if (ret) {
 		ret = -EIO;
+		goto err;
+	}
+
+	/*
+	 * If this is a leaf block and it is corrupt, set the corrupt bit so
+	 * that we don't try and read the other copies of this block, just
+	 * return -EIO.
+	 */
+	if (found_level == 0 && check_leaf(root, eb)) {
+		set_bit(EXTENT_BUFFER_CORRUPT, &eb->bflags);
+		ret = -EIO;
+	}
 
 	end = min_t(u64, eb->len, PAGE_CACHE_SIZE);
 	end = eb->start + end - 1;
@@ -1159,7 +1248,10 @@ struct btrfs_root *btrfs_read_fs_root_no_radix(struct btrfs_root *tree_root,
 		     root, fs_info, location->objectid);
 
 	path = btrfs_alloc_path();
-	BUG_ON(!path);
+	if (!path) {
+		kfree(root);
+		return ERR_PTR(-ENOMEM);
+	}
 	ret = btrfs_search_slot(NULL, tree_root, location, path, 0, 0);
 	if (ret == 0) {
 		l = path->nodes[0];
@@ -1183,8 +1275,10 @@ struct btrfs_root *btrfs_read_fs_root_no_radix(struct btrfs_root *tree_root,
 	root->commit_root = btrfs_root_node(root);
 	BUG_ON(!root->node);
 out:
-	if (location->objectid != BTRFS_TREE_LOG_OBJECTID)
+	if (location->objectid != BTRFS_TREE_LOG_OBJECTID) {
 		root->ref_cows = 1;
+		btrfs_check_and_init_root_item(&root->root_item);
+	}
 
 	return root;
 }
@@ -1553,6 +1647,8 @@ struct btrfs_root *open_ctree(struct super_block *sb,
 		goto fail_bdi;
 	}
 
+	fs_info->btree_inode->i_mapping->flags &= ~__GFP_FS;
+
 	INIT_RADIX_TREE(&fs_info->fs_roots_radix, GFP_ATOMIC);
 	INIT_LIST_HEAD(&fs_info->trans_list);
 	INIT_LIST_HEAD(&fs_info->dead_roots);
@@ -1683,6 +1779,12 @@ struct btrfs_root *open_ctree(struct super_block *sb,
 
 	btrfs_check_super_valid(fs_info, sb->s_flags & MS_RDONLY);
 
+	/*
+	 * In the long term, we'll store the compression type in the super
+	 * block, and it'll be used for per file compression control.
+	 */
+	fs_info->compress_type = BTRFS_COMPRESS_ZLIB;
+
 	ret = btrfs_parse_options(tree_root, options);
 	if (ret) {
 		err = ret;
@@ -1888,6 +1990,12 @@ struct btrfs_root *open_ctree(struct super_block *sb,
 	fs_info->metadata_alloc_profile = (u64)-1;
 	fs_info->system_alloc_profile = fs_info->metadata_alloc_profile;
 
+	ret = btrfs_init_space_info(fs_info);
+	if (ret) {
+		printk(KERN_ERR "Failed to initial space info: %d\n", ret);
+		goto fail_block_groups;
+	}
+
 	ret = btrfs_read_block_groups(extent_root);
 	if (ret) {
 		printk(KERN_ERR "Failed to read block groups: %d\n", ret);
@@ -1979,9 +2087,14 @@ struct btrfs_root *open_ctree(struct super_block *sb,
 
 	if (!(sb->s_flags & MS_RDONLY)) {
 		down_read(&fs_info->cleanup_work_sem);
-		btrfs_orphan_cleanup(fs_info->fs_root);
-		btrfs_orphan_cleanup(fs_info->tree_root);
+		err = btrfs_orphan_cleanup(fs_info->fs_root);
+		if (!err)
+			err = btrfs_orphan_cleanup(fs_info->tree_root);
 		up_read(&fs_info->cleanup_work_sem);
+		if (err) {
+			close_ctree(tree_root);
+			return ERR_PTR(err);
+		}
 	}
 
 	return tree_root;
@@ -2356,8 +2469,12 @@ int btrfs_cleanup_fs_roots(struct btrfs_fs_info *fs_info)
 
 		root_objectid = gang[ret - 1]->root_key.objectid + 1;
 		for (i = 0; i < ret; i++) {
+			int err;
+
 			root_objectid = gang[i]->root_key.objectid;
-			btrfs_orphan_cleanup(gang[i]);
+			err = btrfs_orphan_cleanup(gang[i]);
+			if (err)
+				return err;
 		}
 		root_objectid++;
 	}
@@ -2868,7 +2985,10 @@ static int btrfs_destroy_pinned_extent(struct btrfs_root *root,
 			break;
 
 		/* opt_discard */
-		ret = btrfs_error_discard_extent(root, start, end + 1 - start);
+		if (btrfs_test_opt(root, DISCARD))
+			ret = btrfs_error_discard_extent(root, start,
+							 end + 1 - start,
+							 NULL);
 
 		clear_extent_dirty(unpin, start, end, GFP_NOFS);
 		btrfs_error_unpin_extent_range(root, start, end);
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 7b3089b5c2df..f619c3cb13b7 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -36,8 +36,6 @@
 static int update_block_group(struct btrfs_trans_handle *trans,
 			      struct btrfs_root *root,
 			      u64 bytenr, u64 num_bytes, int alloc);
-static int update_reserved_bytes(struct btrfs_block_group_cache *cache,
-				 u64 num_bytes, int reserve, int sinfo);
 static int __btrfs_free_extent(struct btrfs_trans_handle *trans,
 				struct btrfs_root *root,
 				u64 bytenr, u64 num_bytes, u64 parent,
@@ -442,7 +440,7 @@ static int cache_block_group(struct btrfs_block_group_cache *cache,
 	 * allocate blocks for the tree root we can't do the fast caching since
 	 * we likely hold important locks.
 	 */
-	if (!trans->transaction->in_commit &&
+	if (trans && (!trans->transaction->in_commit) &&
 	    (root && root != root->fs_info->tree_root)) {
 		spin_lock(&cache->lock);
 		if (cache->cached != BTRFS_CACHE_NO) {
@@ -471,7 +469,7 @@ static int cache_block_group(struct btrfs_block_group_cache *cache,
 	if (load_cache_only)
 		return 0;
 
-	caching_ctl = kzalloc(sizeof(*caching_ctl), GFP_KERNEL);
+	caching_ctl = kzalloc(sizeof(*caching_ctl), GFP_NOFS);
 	BUG_ON(!caching_ctl);
 
 	INIT_LIST_HEAD(&caching_ctl->list);
@@ -1740,39 +1738,45 @@ static int remove_extent_backref(struct btrfs_trans_handle *trans,
 	return ret;
 }
 
-static void btrfs_issue_discard(struct block_device *bdev,
+static int btrfs_issue_discard(struct block_device *bdev,
 				u64 start, u64 len)
 {
-	blkdev_issue_discard(bdev, start >> 9, len >> 9, GFP_KERNEL, 0);
+	return blkdev_issue_discard(bdev, start >> 9, len >> 9, GFP_NOFS, 0);
 }
 
 static int btrfs_discard_extent(struct btrfs_root *root, u64 bytenr,
-				u64 num_bytes)
+				u64 num_bytes, u64 *actual_bytes)
 {
 	int ret;
-	u64 map_length = num_bytes;
+	u64 discarded_bytes = 0;
 	struct btrfs_multi_bio *multi = NULL;
 
-	if (!btrfs_test_opt(root, DISCARD))
-		return 0;
 
 	/* Tell the block device(s) that the sectors can be discarded */
-	ret = btrfs_map_block(&root->fs_info->mapping_tree, READ,
-			      bytenr, &map_length, &multi, 0);
+	ret = btrfs_map_block(&root->fs_info->mapping_tree, REQ_DISCARD,
+			      bytenr, &num_bytes, &multi, 0);
 	if (!ret) {
 		struct btrfs_bio_stripe *stripe = multi->stripes;
 		int i;
 
-		if (map_length > num_bytes)
-			map_length = num_bytes;
 
 		for (i = 0; i < multi->num_stripes; i++, stripe++) {
-			btrfs_issue_discard(stripe->dev->bdev,
-					    stripe->physical,
-					    map_length);
+			ret = btrfs_issue_discard(stripe->dev->bdev,
+						  stripe->physical,
+						  stripe->length);
+			if (!ret)
+				discarded_bytes += stripe->length;
+			else if (ret != -EOPNOTSUPP)
+				break;
 		}
 		kfree(multi);
 	}
+	if (discarded_bytes && ret == -EOPNOTSUPP)
+		ret = 0;
+
+	if (actual_bytes)
+		*actual_bytes = discarded_bytes;
+
 
 	return ret;
 }
@@ -3996,6 +4000,7 @@ int btrfs_delalloc_reserve_metadata(struct inode *inode, u64 num_bytes)
 	struct btrfs_block_rsv *block_rsv = &root->fs_info->delalloc_block_rsv;
 	u64 to_reserve;
 	int nr_extents;
+	int reserved_extents;
 	int ret;
 
 	if (btrfs_transaction_in_commit(root->fs_info))
@@ -4003,25 +4008,24 @@ int btrfs_delalloc_reserve_metadata(struct inode *inode, u64 num_bytes)
 
 	num_bytes = ALIGN(num_bytes, root->sectorsize);
 
-	spin_lock(&BTRFS_I(inode)->accounting_lock);
 	nr_extents = atomic_read(&BTRFS_I(inode)->outstanding_extents) + 1;
-	if (nr_extents > BTRFS_I(inode)->reserved_extents) {
-		nr_extents -= BTRFS_I(inode)->reserved_extents;
+	reserved_extents = atomic_read(&BTRFS_I(inode)->reserved_extents);
+
+	if (nr_extents > reserved_extents) {
+		nr_extents -= reserved_extents;
 		to_reserve = calc_trans_metadata_size(root, nr_extents);
 	} else {
 		nr_extents = 0;
 		to_reserve = 0;
 	}
-	spin_unlock(&BTRFS_I(inode)->accounting_lock);
+
 	to_reserve += calc_csum_metadata_size(inode, num_bytes);
 	ret = reserve_metadata_bytes(NULL, root, block_rsv, to_reserve, 1);
 	if (ret)
 		return ret;
 
-	spin_lock(&BTRFS_I(inode)->accounting_lock);
-	BTRFS_I(inode)->reserved_extents += nr_extents;
+	atomic_add(nr_extents, &BTRFS_I(inode)->reserved_extents);
 	atomic_inc(&BTRFS_I(inode)->outstanding_extents);
-	spin_unlock(&BTRFS_I(inode)->accounting_lock);
 
 	block_rsv_add_bytes(block_rsv, to_reserve, 1);
 
@@ -4036,20 +4040,30 @@ void btrfs_delalloc_release_metadata(struct inode *inode, u64 num_bytes)
 	struct btrfs_root *root = BTRFS_I(inode)->root;
 	u64 to_free;
 	int nr_extents;
+	int reserved_extents;
 
 	num_bytes = ALIGN(num_bytes, root->sectorsize);
 	atomic_dec(&BTRFS_I(inode)->outstanding_extents);
 	WARN_ON(atomic_read(&BTRFS_I(inode)->outstanding_extents) < 0);
 
-	spin_lock(&BTRFS_I(inode)->accounting_lock);
-	nr_extents = atomic_read(&BTRFS_I(inode)->outstanding_extents);
-	if (nr_extents < BTRFS_I(inode)->reserved_extents) {
-		nr_extents = BTRFS_I(inode)->reserved_extents - nr_extents;
-		BTRFS_I(inode)->reserved_extents -= nr_extents;
-	} else {
-		nr_extents = 0;
-	}
-	spin_unlock(&BTRFS_I(inode)->accounting_lock);
+	reserved_extents = atomic_read(&BTRFS_I(inode)->reserved_extents);
+	do {
+		int old, new;
+
+		nr_extents = atomic_read(&BTRFS_I(inode)->outstanding_extents);
+		if (nr_extents >= reserved_extents) {
+			nr_extents = 0;
+			break;
+		}
+		old = reserved_extents;
+		nr_extents = reserved_extents - nr_extents;
+		new = reserved_extents - nr_extents;
+		old = atomic_cmpxchg(&BTRFS_I(inode)->reserved_extents,
+				     reserved_extents, new);
+		if (likely(old == reserved_extents))
+			break;
+		reserved_extents = old;
+	} while (1);
 
 	to_free = calc_csum_metadata_size(inode, num_bytes);
 	if (nr_extents > 0)
@@ -4223,8 +4237,8 @@ int btrfs_pin_extent(struct btrfs_root *root,
  * update size of reserved extents. this function may return -EAGAIN
  * if 'reserve' is true or 'sinfo' is false.
  */
-static int update_reserved_bytes(struct btrfs_block_group_cache *cache,
-				 u64 num_bytes, int reserve, int sinfo)
+int btrfs_update_reserved_bytes(struct btrfs_block_group_cache *cache,
+				u64 num_bytes, int reserve, int sinfo)
 {
 	int ret = 0;
 	if (sinfo) {
@@ -4363,7 +4377,9 @@ int btrfs_finish_extent_commit(struct btrfs_trans_handle *trans,
 		if (ret)
 			break;
 
-		ret = btrfs_discard_extent(root, start, end + 1 - start);
+		if (btrfs_test_opt(root, DISCARD))
+			ret = btrfs_discard_extent(root, start,
+						   end + 1 - start, NULL);
 
 		clear_extent_dirty(unpin, start, end, GFP_NOFS);
 		unpin_extent_range(root, start, end);
@@ -4704,10 +4720,10 @@ void btrfs_free_tree_block(struct btrfs_trans_handle *trans,
 		WARN_ON(test_bit(EXTENT_BUFFER_DIRTY, &buf->bflags));
 
 		btrfs_add_free_space(cache, buf->start, buf->len);
-		ret = update_reserved_bytes(cache, buf->len, 0, 0);
+		ret = btrfs_update_reserved_bytes(cache, buf->len, 0, 0);
 		if (ret == -EAGAIN) {
 			/* block group became read-only */
-			update_reserved_bytes(cache, buf->len, 0, 1);
+			btrfs_update_reserved_bytes(cache, buf->len, 0, 1);
 			goto out;
 		}
 
@@ -4744,6 +4760,11 @@ pin:
 		}
 	}
 out:
+	/*
+	 * Deleting the buffer, clear the corrupt flag since it doesn't matter
+	 * anymore.
+	 */
+	clear_bit(EXTENT_BUFFER_CORRUPT, &buf->bflags);
 	btrfs_put_block_group(cache);
 }
 
@@ -5191,7 +5212,7 @@ checks:
 					     search_start - offset);
 		BUG_ON(offset > search_start);
 
-		ret = update_reserved_bytes(block_group, num_bytes, 1,
+		ret = btrfs_update_reserved_bytes(block_group, num_bytes, 1,
 					    (data & BTRFS_BLOCK_GROUP_DATA));
 		if (ret == -EAGAIN) {
 			btrfs_add_free_space(block_group, offset, num_bytes);
@@ -5397,6 +5418,8 @@ again:
 		dump_space_info(sinfo, num_bytes, 1);
 	}
 
+	trace_btrfs_reserved_extent_alloc(root, ins->objectid, ins->offset);
+
 	return ret;
 }
 
@@ -5412,12 +5435,15 @@ int btrfs_free_reserved_extent(struct btrfs_root *root, u64 start, u64 len)
 		return -ENOSPC;
 	}
 
-	ret = btrfs_discard_extent(root, start, len);
+	if (btrfs_test_opt(root, DISCARD))
+		ret = btrfs_discard_extent(root, start, len, NULL);
 
 	btrfs_add_free_space(cache, start, len);
-	update_reserved_bytes(cache, len, 0, 1);
+	btrfs_update_reserved_bytes(cache, len, 0, 1);
 	btrfs_put_block_group(cache);
 
+	trace_btrfs_reserved_extent_free(root, start, len);
+
 	return ret;
 }
 
@@ -5444,7 +5470,8 @@ static int alloc_reserved_file_extent(struct btrfs_trans_handle *trans,
 	size = sizeof(*extent_item) + btrfs_extent_inline_ref_size(type);
 
 	path = btrfs_alloc_path();
-	BUG_ON(!path);
+	if (!path)
+		return -ENOMEM;
 
 	path->leave_spinning = 1;
 	ret = btrfs_insert_empty_item(trans, fs_info->extent_root, path,
@@ -5614,7 +5641,7 @@ int btrfs_alloc_logged_file_extent(struct btrfs_trans_handle *trans,
 		put_caching_control(caching_ctl);
 	}
 
-	ret = update_reserved_bytes(block_group, ins->offset, 1, 1);
+	ret = btrfs_update_reserved_bytes(block_group, ins->offset, 1, 1);
 	BUG_ON(ret);
 	btrfs_put_block_group(block_group);
 	ret = alloc_reserved_file_extent(trans, root, 0, root_objectid,
@@ -6047,6 +6074,8 @@ static noinline int do_walk_down(struct btrfs_trans_handle *trans,
 		if (reada && level == 1)
 			reada_walk_down(trans, root, wc, path);
 		next = read_tree_block(root, bytenr, blocksize, generation);
+		if (!next)
+			return -EIO;
 		btrfs_tree_lock(next);
 		btrfs_set_lock_blocking(next);
 	}
@@ -6438,10 +6467,14 @@ int btrfs_drop_subtree(struct btrfs_trans_handle *trans,
 	BUG_ON(root->root_key.objectid != BTRFS_TREE_RELOC_OBJECTID);
 
 	path = btrfs_alloc_path();
-	BUG_ON(!path);
+	if (!path)
+		return -ENOMEM;
 
 	wc = kzalloc(sizeof(*wc), GFP_NOFS);
-	BUG_ON(!wc);
+	if (!wc) {
+		btrfs_free_path(path);
+		return -ENOMEM;
+	}
 
 	btrfs_assert_tree_locked(parent);
 	parent_level = btrfs_header_level(parent);
@@ -6899,7 +6932,11 @@ static noinline int get_new_locations(struct inode *reloc_inode,
 	}
 
 	path = btrfs_alloc_path();
-	BUG_ON(!path);
+	if (!path) {
+		if (exts != *extents)
+			kfree(exts);
+		return -ENOMEM;
+	}
 
 	cur_pos = extent_key->objectid - offset;
 	last_byte = extent_key->objectid + extent_key->offset;
@@ -6941,6 +6978,10 @@ static noinline int get_new_locations(struct inode *reloc_inode,
 			struct disk_extent *old = exts;
 			max *= 2;
 			exts = kzalloc(sizeof(*exts) * max, GFP_NOFS);
+			if (!exts) {
+				ret = -ENOMEM;
+				goto out;
+			}
 			memcpy(exts, old, sizeof(*exts) * nr);
 			if (old != *extents)
 				kfree(old);
@@ -7423,7 +7464,8 @@ static noinline int replace_extents_in_leaf(struct btrfs_trans_handle *trans,
 	int ret;
 
 	new_extent = kmalloc(sizeof(*new_extent), GFP_NOFS);
-	BUG_ON(!new_extent);
+	if (!new_extent)
+		return -ENOMEM;
 
 	ref = btrfs_lookup_leaf_ref(root, leaf->start);
 	BUG_ON(!ref);
@@ -7609,7 +7651,8 @@ int btrfs_cleanup_reloc_trees(struct btrfs_root *root)
 
 	reloc_root = btrfs_read_fs_root_no_name(root->fs_info, &location);
 	BUG_ON(!reloc_root);
-	btrfs_orphan_cleanup(reloc_root);
+	ret = btrfs_orphan_cleanup(reloc_root);
+	BUG_ON(ret);
 	return 0;
 }
 
@@ -7627,7 +7670,8 @@ static noinline int init_reloc_tree(struct btrfs_trans_handle *trans,
 		return 0;
 
 	root_item = kmalloc(sizeof(*root_item), GFP_NOFS);
-	BUG_ON(!root_item);
+	if (!root_item)
+		return -ENOMEM;
 
 	ret = btrfs_copy_root(trans, root, root->commit_root,
 			      &eb, BTRFS_TREE_RELOC_OBJECTID);
@@ -7653,7 +7697,7 @@ static noinline int init_reloc_tree(struct btrfs_trans_handle *trans,
 
 	reloc_root = btrfs_read_fs_root_no_radix(root->fs_info->tree_root,
 						 &root_key);
-	BUG_ON(!reloc_root);
+	BUG_ON(IS_ERR(reloc_root));
 	reloc_root->last_trans = trans->transid;
 	reloc_root->commit_root = NULL;
 	reloc_root->ref_tree = &root->fs_info->reloc_ref_tree;
@@ -7906,6 +7950,10 @@ static noinline int relocate_one_extent(struct btrfs_root *extent_root,
 
 			eb = read_tree_block(found_root, block_start,
 					     block_size, 0);
+			if (!eb) {
+				ret = -EIO;
+				goto out;
+			}
 			btrfs_tree_lock(eb);
 			BUG_ON(level != btrfs_header_level(eb));
 
@@ -8621,6 +8669,12 @@ int btrfs_remove_block_group(struct btrfs_trans_handle *trans,
 	BUG_ON(!block_group);
 	BUG_ON(!block_group->ro);
 
+	/*
+	 * Free the reserved super bytes from this block group before
+	 * remove it.
+	 */
+	free_excluded_extents(root, block_group);
+
 	memcpy(&key, &block_group->key, sizeof(key));
 	if (block_group->flags & (BTRFS_BLOCK_GROUP_DUP |
 				  BTRFS_BLOCK_GROUP_RAID1 |
@@ -8724,13 +8778,84 @@ out:
 	return ret;
 }
 
+int btrfs_init_space_info(struct btrfs_fs_info *fs_info)
+{
+	struct btrfs_space_info *space_info;
+	int ret;
+
+	ret = update_space_info(fs_info, BTRFS_BLOCK_GROUP_SYSTEM, 0, 0,
+								 &space_info);
+	if (ret)
+		return ret;
+
+	ret = update_space_info(fs_info, BTRFS_BLOCK_GROUP_METADATA, 0, 0,
+								 &space_info);
+	if (ret)
+		return ret;
+
+	ret = update_space_info(fs_info, BTRFS_BLOCK_GROUP_DATA, 0, 0,
+								 &space_info);
+	if (ret)
+		return ret;
+
+	return ret;
+}
+
 int btrfs_error_unpin_extent_range(struct btrfs_root *root, u64 start, u64 end)
 {
 	return unpin_extent_range(root, start, end);
 }
 
 int btrfs_error_discard_extent(struct btrfs_root *root, u64 bytenr,
-			       u64 num_bytes)
+			       u64 num_bytes, u64 *actual_bytes)
+{
+	return btrfs_discard_extent(root, bytenr, num_bytes, actual_bytes);
+}
+
+int btrfs_trim_fs(struct btrfs_root *root, struct fstrim_range *range)
 {
-	return btrfs_discard_extent(root, bytenr, num_bytes);
+	struct btrfs_fs_info *fs_info = root->fs_info;
+	struct btrfs_block_group_cache *cache = NULL;
+	u64 group_trimmed;
+	u64 start;
+	u64 end;
+	u64 trimmed = 0;
+	int ret = 0;
+
+	cache = btrfs_lookup_block_group(fs_info, range->start);
+
+	while (cache) {
+		if (cache->key.objectid >= (range->start + range->len)) {
+			btrfs_put_block_group(cache);
+			break;
+		}
+
+		start = max(range->start, cache->key.objectid);
+		end = min(range->start + range->len,
+				cache->key.objectid + cache->key.offset);
+
+		if (end - start >= range->minlen) {
+			if (!block_group_cache_done(cache)) {
+				ret = cache_block_group(cache, NULL, root, 0);
+				if (!ret)
+					wait_block_group_cache_done(cache);
+			}
+			ret = btrfs_trim_block_group(cache,
+						     &group_trimmed,
+						     start,
+						     end,
+						     range->minlen);
+
+			trimmed += group_trimmed;
+			if (ret) {
+				btrfs_put_block_group(cache);
+				break;
+			}
+		}
+
+		cache = next_block_group(fs_info->tree_root, cache);
+	}
+
+	range->len = trimmed;
+	return ret;
 }
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index b5b92824a271..20ddb28602a8 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -2192,6 +2192,8 @@ static int __extent_writepage(struct page *page, struct writeback_control *wbc,
 	else
 		write_flags = WRITE;
 
+	trace___extent_writepage(page, inode, wbc);
+
 	WARN_ON(!PageLocked(page));
 	pg_offset = i_size & (PAGE_CACHE_SIZE - 1);
 	if (page->index > end_index ||
@@ -3690,6 +3692,7 @@ int map_private_extent_buffer(struct extent_buffer *eb, unsigned long start,
 		       "wanted %lu %lu\n", (unsigned long long)eb->start,
 		       eb->len, start, min_len);
 		WARN_ON(1);
+		return -EINVAL;
 	}
 
 	p = extent_buffer_page(eb, i);
diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h
index 9318dfefd59c..f62c5442835d 100644
--- a/fs/btrfs/extent_io.h
+++ b/fs/btrfs/extent_io.h
@@ -31,6 +31,7 @@
 #define EXTENT_BUFFER_UPTODATE 0
 #define EXTENT_BUFFER_BLOCKING 1
 #define EXTENT_BUFFER_DIRTY 2
+#define EXTENT_BUFFER_CORRUPT 3
 
 /* these are flags for extent_clear_unlock_delalloc */
 #define EXTENT_CLEAR_UNLOCK_PAGE 0x1
diff --git a/fs/btrfs/extent_map.c b/fs/btrfs/extent_map.c
index 2b6c12e983b3..a24a3f2fa13e 100644
--- a/fs/btrfs/extent_map.c
+++ b/fs/btrfs/extent_map.c
@@ -243,7 +243,7 @@ out:
  * Insert @em into @tree or perform a simple forward/backward merge with
  * existing mappings.  The extent_map struct passed in will be inserted
  * into the tree directly, with an additional reference taken, or a
- * reference dropped if the merge attempt was successfull.
+ * reference dropped if the merge attempt was successful.
  */
 int add_extent_mapping(struct extent_map_tree *tree,
 		       struct extent_map *em)
diff --git a/fs/btrfs/file-item.c b/fs/btrfs/file-item.c
index 4f19a3e1bf32..a6a9d4e8b491 100644
--- a/fs/btrfs/file-item.c
+++ b/fs/btrfs/file-item.c
@@ -48,7 +48,8 @@ int btrfs_insert_file_extent(struct btrfs_trans_handle *trans,
 	struct extent_buffer *leaf;
 
 	path = btrfs_alloc_path();
-	BUG_ON(!path);
+	if (!path)
+		return -ENOMEM;
 	file_key.objectid = objectid;
 	file_key.offset = pos;
 	btrfs_set_key_type(&file_key, BTRFS_EXTENT_DATA_KEY);
@@ -169,6 +170,8 @@ static int __btrfs_lookup_bio_sums(struct btrfs_root *root,
 	struct extent_io_tree *io_tree = &BTRFS_I(inode)->io_tree;
 
 	path = btrfs_alloc_path();
+	if (!path)
+		return -ENOMEM;
 	if (bio->bi_size > PAGE_CACHE_SIZE * 8)
 		path->reada = 2;
 
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index f447b783bb84..e621ea54a3fd 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -45,14 +45,14 @@
  * and be replaced with calls into generic code.
  */
 static noinline int btrfs_copy_from_user(loff_t pos, int num_pages,
-					 int write_bytes,
+					 size_t write_bytes,
 					 struct page **prepared_pages,
 					 struct iov_iter *i)
 {
 	size_t copied = 0;
+	size_t total_copied = 0;
 	int pg = 0;
 	int offset = pos & (PAGE_CACHE_SIZE - 1);
-	int total_copied = 0;
 
 	while (write_bytes > 0) {
 		size_t count = min_t(size_t,
@@ -88,9 +88,8 @@ static noinline int btrfs_copy_from_user(loff_t pos, int num_pages,
 		total_copied += copied;
 
 		/* Return to btrfs_file_aio_write to fault page */
-		if (unlikely(copied == 0)) {
+		if (unlikely(copied == 0))
 			break;
-		}
 
 		if (unlikely(copied < PAGE_CACHE_SIZE - offset)) {
 			offset += copied;
@@ -109,8 +108,6 @@ static noinline void btrfs_drop_pages(struct page **pages, size_t num_pages)
 {
 	size_t i;
 	for (i = 0; i < num_pages; i++) {
-		if (!pages[i])
-			break;
 		/* page checked is some magic around finding pages that
 		 * have been modified without going through btrfs_set_page_dirty
 		 * clear it here
@@ -130,13 +127,12 @@ static noinline void btrfs_drop_pages(struct page **pages, size_t num_pages)
  * this also makes the decision about creating an inline extent vs
  * doing real data extents, marking pages dirty and delalloc as required.
  */
-static noinline int dirty_and_release_pages(struct btrfs_trans_handle *trans,
-				   struct btrfs_root *root,
-				   struct file *file,
-				   struct page **pages,
-				   size_t num_pages,
-				   loff_t pos,
-				   size_t write_bytes)
+static noinline int dirty_and_release_pages(struct btrfs_root *root,
+					    struct file *file,
+					    struct page **pages,
+					    size_t num_pages,
+					    loff_t pos,
+					    size_t write_bytes)
 {
 	int err = 0;
 	int i;
@@ -154,7 +150,8 @@ static noinline int dirty_and_release_pages(struct btrfs_trans_handle *trans,
 	end_of_last_block = start_pos + num_bytes - 1;
 	err = btrfs_set_extent_delalloc(inode, start_pos, end_of_last_block,
 					NULL);
-	BUG_ON(err);
+	if (err)
+		return err;
 
 	for (i = 0; i < num_pages; i++) {
 		struct page *p = pages[i];
@@ -162,13 +159,14 @@ static noinline int dirty_and_release_pages(struct btrfs_trans_handle *trans,
 		ClearPageChecked(p);
 		set_page_dirty(p);
 	}
-	if (end_pos > isize) {
+
+	/*
+	 * we've only changed i_size in ram, and we haven't updated
+	 * the disk i_size.  There is no need to log the inode
+	 * at this time.
+	 */
+	if (end_pos > isize)
 		i_size_write(inode, end_pos);
-		/* we've only changed i_size in ram, and we haven't updated
-		 * the disk i_size.  There is no need to log the inode
-		 * at this time.
-		 */
-	}
 	return 0;
 }
 
@@ -610,6 +608,8 @@ again:
 	key.offset = split;
 
 	ret = btrfs_search_slot(trans, root, &key, path, -1, 1);
+	if (ret < 0)
+		goto out;
 	if (ret > 0 && path->slots[0] > 0)
 		path->slots[0]--;
 
@@ -819,12 +819,11 @@ static noinline int prepare_pages(struct btrfs_root *root, struct file *file,
 	last_pos = ((u64)index + num_pages) << PAGE_CACHE_SHIFT;
 
 	if (start_pos > inode->i_size) {
-		err = btrfs_cont_expand(inode, start_pos);
+		err = btrfs_cont_expand(inode, i_size_read(inode), start_pos);
 		if (err)
 			return err;
 	}
 
-	memset(pages, 0, num_pages * sizeof(struct page *));
 again:
 	for (i = 0; i < num_pages; i++) {
 		pages[i] = grab_cache_page(inode->i_mapping, index + i);
@@ -896,156 +895,71 @@ fail:
 
 }
 
-static ssize_t btrfs_file_aio_write(struct kiocb *iocb,
-				    const struct iovec *iov,
-				    unsigned long nr_segs, loff_t pos)
+static noinline ssize_t __btrfs_buffered_write(struct file *file,
+					       struct iov_iter *i,
+					       loff_t pos)
 {
-	struct file *file = iocb->ki_filp;
 	struct inode *inode = fdentry(file)->d_inode;
 	struct btrfs_root *root = BTRFS_I(inode)->root;
 	struct page **pages = NULL;
-	struct iov_iter i;
-	loff_t *ppos = &iocb->ki_pos;
-	loff_t start_pos;
-	ssize_t num_written = 0;
-	ssize_t err = 0;
-	size_t count;
-	size_t ocount;
-	int ret = 0;
-	int nrptrs;
 	unsigned long first_index;
 	unsigned long last_index;
-	int will_write;
-	int buffered = 0;
-	int copied = 0;
-	int dirty_pages = 0;
-
-	will_write = ((file->f_flags & O_DSYNC) || IS_SYNC(inode) ||
-		      (file->f_flags & O_DIRECT));
-
-	start_pos = pos;
-
-	vfs_check_frozen(inode->i_sb, SB_FREEZE_WRITE);
-
-	mutex_lock(&inode->i_mutex);
-
-	err = generic_segment_checks(iov, &nr_segs, &ocount, VERIFY_READ);
-	if (err)
-		goto out;
-	count = ocount;
-
-	current->backing_dev_info = inode->i_mapping->backing_dev_info;
-	err = generic_write_checks(file, &pos, &count, S_ISBLK(inode->i_mode));
-	if (err)
-		goto out;
-
-	if (count == 0)
-		goto out;
-
-	err = file_remove_suid(file);
-	if (err)
-		goto out;
-
-	/*
-	 * If BTRFS flips readonly due to some impossible error
-	 * (fs_info->fs_state now has BTRFS_SUPER_FLAG_ERROR),
-	 * although we have opened a file as writable, we have
-	 * to stop this write operation to ensure FS consistency.
-	 */
-	if (root->fs_info->fs_state & BTRFS_SUPER_FLAG_ERROR) {
-		err = -EROFS;
-		goto out;
-	}
-
-	file_update_time(file);
-	BTRFS_I(inode)->sequence++;
-
-	if (unlikely(file->f_flags & O_DIRECT)) {
-		num_written = generic_file_direct_write(iocb, iov, &nr_segs,
-							pos, ppos, count,
-							ocount);
-		/*
-		 * the generic O_DIRECT will update in-memory i_size after the
-		 * DIOs are done.  But our endio handlers that update the on
-		 * disk i_size never update past the in memory i_size.  So we
-		 * need one more update here to catch any additions to the
-		 * file
-		 */
-		if (inode->i_size != BTRFS_I(inode)->disk_i_size) {
-			btrfs_ordered_update_i_size(inode, inode->i_size, NULL);
-			mark_inode_dirty(inode);
-		}
-
-		if (num_written < 0) {
-			ret = num_written;
-			num_written = 0;
-			goto out;
-		} else if (num_written == count) {
-			/* pick up pos changes done by the generic code */
-			pos = *ppos;
-			goto out;
-		}
-		/*
-		 * We are going to do buffered for the rest of the range, so we
-		 * need to make sure to invalidate the buffered pages when we're
-		 * done.
-		 */
-		buffered = 1;
-		pos += num_written;
-	}
+	size_t num_written = 0;
+	int nrptrs;
+	int ret = 0;
 
-	iov_iter_init(&i, iov, nr_segs, count, num_written);
-	nrptrs = min((iov_iter_count(&i) + PAGE_CACHE_SIZE - 1) /
+	nrptrs = min((iov_iter_count(i) + PAGE_CACHE_SIZE - 1) /
 		     PAGE_CACHE_SIZE, PAGE_CACHE_SIZE /
 		     (sizeof(struct page *)));
 	pages = kmalloc(nrptrs * sizeof(struct page *), GFP_KERNEL);
-	if (!pages) {
-		ret = -ENOMEM;
-		goto out;
-	}
-
-	/* generic_write_checks can change our pos */
-	start_pos = pos;
+	if (!pages)
+		return -ENOMEM;
 
 	first_index = pos >> PAGE_CACHE_SHIFT;
-	last_index = (pos + iov_iter_count(&i)) >> PAGE_CACHE_SHIFT;
+	last_index = (pos + iov_iter_count(i)) >> PAGE_CACHE_SHIFT;
 
-	while (iov_iter_count(&i) > 0) {
+	while (iov_iter_count(i) > 0) {
 		size_t offset = pos & (PAGE_CACHE_SIZE - 1);
-		size_t write_bytes = min(iov_iter_count(&i),
+		size_t write_bytes = min(iov_iter_count(i),
 					 nrptrs * (size_t)PAGE_CACHE_SIZE -
 					 offset);
 		size_t num_pages = (write_bytes + offset +
 				    PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
+		size_t dirty_pages;
+		size_t copied;
 
 		WARN_ON(num_pages > nrptrs);
-		memset(pages, 0, sizeof(struct page *) * nrptrs);
 
 		/*
 		 * Fault pages before locking them in prepare_pages
 		 * to avoid recursive lock
 		 */
-		if (unlikely(iov_iter_fault_in_readable(&i, write_bytes))) {
+		if (unlikely(iov_iter_fault_in_readable(i, write_bytes))) {
 			ret = -EFAULT;
-			goto out;
+			break;
 		}
 
 		ret = btrfs_delalloc_reserve_space(inode,
 					num_pages << PAGE_CACHE_SHIFT);
 		if (ret)
-			goto out;
+			break;
 
+		/*
+		 * This is going to setup the pages array with the number of
+		 * pages we want, so we don't really need to worry about the
+		 * contents of pages from loop to loop
+		 */
 		ret = prepare_pages(root, file, pages, num_pages,
 				    pos, first_index, last_index,
 				    write_bytes);
 		if (ret) {
 			btrfs_delalloc_release_space(inode,
 					num_pages << PAGE_CACHE_SHIFT);
-			goto out;
+			break;
 		}
 
 		copied = btrfs_copy_from_user(pos, num_pages,
-					   write_bytes, pages, &i);
+					   write_bytes, pages, i);
 
 		/*
 		 * if we have trouble faulting in the pages, fall
@@ -1061,6 +975,13 @@ static ssize_t btrfs_file_aio_write(struct kiocb *iocb,
 				       PAGE_CACHE_SIZE - 1) >>
 				       PAGE_CACHE_SHIFT;
 
+		/*
+		 * If we had a short copy we need to release the excess delaloc
+		 * bytes we reserved.  We need to increment outstanding_extents
+		 * because btrfs_delalloc_release_space will decrement it, but
+		 * we still have an outstanding extent for the chunk we actually
+		 * managed to copy.
+		 */
 		if (num_pages > dirty_pages) {
 			if (copied > 0)
 				atomic_inc(
@@ -1071,39 +992,157 @@ static ssize_t btrfs_file_aio_write(struct kiocb *iocb,
 		}
 
 		if (copied > 0) {
-			dirty_and_release_pages(NULL, root, file, pages,
-						dirty_pages, pos, copied);
+			ret = dirty_and_release_pages(root, file, pages,
+						      dirty_pages, pos,
+						      copied);
+			if (ret) {
+				btrfs_delalloc_release_space(inode,
+					dirty_pages << PAGE_CACHE_SHIFT);
+				btrfs_drop_pages(pages, num_pages);
+				break;
+			}
 		}
 
 		btrfs_drop_pages(pages, num_pages);
 
-		if (copied > 0) {
-			if (will_write) {
-				filemap_fdatawrite_range(inode->i_mapping, pos,
-							 pos + copied - 1);
-			} else {
-				balance_dirty_pages_ratelimited_nr(
-							inode->i_mapping,
-							dirty_pages);
-				if (dirty_pages <
-				(root->leafsize >> PAGE_CACHE_SHIFT) + 1)
-					btrfs_btree_balance_dirty(root, 1);
-				btrfs_throttle(root);
-			}
-		}
+		cond_resched();
+
+		balance_dirty_pages_ratelimited_nr(inode->i_mapping,
+						   dirty_pages);
+		if (dirty_pages < (root->leafsize >> PAGE_CACHE_SHIFT) + 1)
+			btrfs_btree_balance_dirty(root, 1);
+		btrfs_throttle(root);
 
 		pos += copied;
 		num_written += copied;
+	}
 
-		cond_resched();
+	kfree(pages);
+
+	return num_written ? num_written : ret;
+}
+
+static ssize_t __btrfs_direct_write(struct kiocb *iocb,
+				    const struct iovec *iov,
+				    unsigned long nr_segs, loff_t pos,
+				    loff_t *ppos, size_t count, size_t ocount)
+{
+	struct file *file = iocb->ki_filp;
+	struct inode *inode = fdentry(file)->d_inode;
+	struct iov_iter i;
+	ssize_t written;
+	ssize_t written_buffered;
+	loff_t endbyte;
+	int err;
+
+	written = generic_file_direct_write(iocb, iov, &nr_segs, pos, ppos,
+					    count, ocount);
+
+	/*
+	 * the generic O_DIRECT will update in-memory i_size after the
+	 * DIOs are done.  But our endio handlers that update the on
+	 * disk i_size never update past the in memory i_size.  So we
+	 * need one more update here to catch any additions to the
+	 * file
+	 */
+	if (inode->i_size != BTRFS_I(inode)->disk_i_size) {
+		btrfs_ordered_update_i_size(inode, inode->i_size, NULL);
+		mark_inode_dirty(inode);
 	}
+
+	if (written < 0 || written == count)
+		return written;
+
+	pos += written;
+	count -= written;
+	iov_iter_init(&i, iov, nr_segs, count, written);
+	written_buffered = __btrfs_buffered_write(file, &i, pos);
+	if (written_buffered < 0) {
+		err = written_buffered;
+		goto out;
+	}
+	endbyte = pos + written_buffered - 1;
+	err = filemap_write_and_wait_range(file->f_mapping, pos, endbyte);
+	if (err)
+		goto out;
+	written += written_buffered;
+	*ppos = pos + written_buffered;
+	invalidate_mapping_pages(file->f_mapping, pos >> PAGE_CACHE_SHIFT,
+				 endbyte >> PAGE_CACHE_SHIFT);
 out:
-	mutex_unlock(&inode->i_mutex);
-	if (ret)
-		err = ret;
+	return written ? written : err;
+}
 
-	kfree(pages);
-	*ppos = pos;
+static ssize_t btrfs_file_aio_write(struct kiocb *iocb,
+				    const struct iovec *iov,
+				    unsigned long nr_segs, loff_t pos)
+{
+	struct file *file = iocb->ki_filp;
+	struct inode *inode = fdentry(file)->d_inode;
+	struct btrfs_root *root = BTRFS_I(inode)->root;
+	loff_t *ppos = &iocb->ki_pos;
+	ssize_t num_written = 0;
+	ssize_t err = 0;
+	size_t count, ocount;
+
+	vfs_check_frozen(inode->i_sb, SB_FREEZE_WRITE);
+
+	mutex_lock(&inode->i_mutex);
+
+	err = generic_segment_checks(iov, &nr_segs, &ocount, VERIFY_READ);
+	if (err) {
+		mutex_unlock(&inode->i_mutex);
+		goto out;
+	}
+	count = ocount;
+
+	current->backing_dev_info = inode->i_mapping->backing_dev_info;
+	err = generic_write_checks(file, &pos, &count, S_ISBLK(inode->i_mode));
+	if (err) {
+		mutex_unlock(&inode->i_mutex);
+		goto out;
+	}
+
+	if (count == 0) {
+		mutex_unlock(&inode->i_mutex);
+		goto out;
+	}
+
+	err = file_remove_suid(file);
+	if (err) {
+		mutex_unlock(&inode->i_mutex);
+		goto out;
+	}
+
+	/*
+	 * If BTRFS flips readonly due to some impossible error
+	 * (fs_info->fs_state now has BTRFS_SUPER_FLAG_ERROR),
+	 * although we have opened a file as writable, we have
+	 * to stop this write operation to ensure FS consistency.
+	 */
+	if (root->fs_info->fs_state & BTRFS_SUPER_FLAG_ERROR) {
+		mutex_unlock(&inode->i_mutex);
+		err = -EROFS;
+		goto out;
+	}
+
+	file_update_time(file);
+	BTRFS_I(inode)->sequence++;
+
+	if (unlikely(file->f_flags & O_DIRECT)) {
+		num_written = __btrfs_direct_write(iocb, iov, nr_segs,
+						   pos, ppos, count, ocount);
+	} else {
+		struct iov_iter i;
+
+		iov_iter_init(&i, iov, nr_segs, count, num_written);
+
+		num_written = __btrfs_buffered_write(file, &i, pos);
+		if (num_written > 0)
+			*ppos = pos + num_written;
+	}
+
+	mutex_unlock(&inode->i_mutex);
 
 	/*
 	 * we want to make sure fsync finds this change
@@ -1118,43 +1157,12 @@ out:
 	 * one running right now.
 	 */
 	BTRFS_I(inode)->last_trans = root->fs_info->generation + 1;
-
-	if (num_written > 0 && will_write) {
-		struct btrfs_trans_handle *trans;
-
-		err = btrfs_wait_ordered_range(inode, start_pos, num_written);
-		if (err)
+	if (num_written > 0 || num_written == -EIOCBQUEUED) {
+		err = generic_write_sync(file, pos, num_written);
+		if (err < 0 && num_written > 0)
 			num_written = err;
-
-		if ((file->f_flags & O_DSYNC) || IS_SYNC(inode)) {
-			trans = btrfs_start_transaction(root, 0);
-			if (IS_ERR(trans)) {
-				num_written = PTR_ERR(trans);
-				goto done;
-			}
-			mutex_lock(&inode->i_mutex);
-			ret = btrfs_log_dentry_safe(trans, root,
-						    file->f_dentry);
-			mutex_unlock(&inode->i_mutex);
-			if (ret == 0) {
-				ret = btrfs_sync_log(trans, root);
-				if (ret == 0)
-					btrfs_end_transaction(trans, root);
-				else
-					btrfs_commit_transaction(trans, root);
-			} else if (ret != BTRFS_NO_LOG_SYNC) {
-				btrfs_commit_transaction(trans, root);
-			} else {
-				btrfs_end_transaction(trans, root);
-			}
-		}
-		if (file->f_flags & O_DIRECT && buffered) {
-			invalidate_mapping_pages(inode->i_mapping,
-			      start_pos >> PAGE_CACHE_SHIFT,
-			     (start_pos + num_written - 1) >> PAGE_CACHE_SHIFT);
-		}
 	}
-done:
+out:
 	current->backing_dev_info = NULL;
 	return num_written ? num_written : err;
 }
@@ -1197,6 +1205,7 @@ int btrfs_sync_file(struct file *file, int datasync)
 	int ret = 0;
 	struct btrfs_trans_handle *trans;
 
+	trace_btrfs_sync_file(file, datasync);
 
 	/* we wait first, since the writeback may change the inode */
 	root->log_batch++;
@@ -1324,7 +1333,8 @@ static long btrfs_fallocate(struct file *file, int mode,
 		goto out;
 
 	if (alloc_start > inode->i_size) {
-		ret = btrfs_cont_expand(inode, alloc_start);
+		ret = btrfs_cont_expand(inode, i_size_read(inode),
+					alloc_start);
 		if (ret)
 			goto out;
 	}
diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c
index a0390657451b..f561c953205b 100644
--- a/fs/btrfs/free-space-cache.c
+++ b/fs/btrfs/free-space-cache.c
@@ -24,6 +24,7 @@
 #include "free-space-cache.h"
 #include "transaction.h"
 #include "disk-io.h"
+#include "extent_io.h"
 
 #define BITS_PER_BITMAP		(PAGE_CACHE_SIZE * 8)
 #define MAX_CACHE_BYTES_PER_GIG	(32 * 1024)
@@ -81,6 +82,8 @@ struct inode *lookup_free_space_inode(struct btrfs_root *root,
 		return ERR_PTR(-ENOENT);
 	}
 
+	inode->i_mapping->flags &= ~__GFP_FS;
+
 	spin_lock(&block_group->lock);
 	if (!root->fs_info->closing) {
 		block_group->inode = igrab(inode);
@@ -222,6 +225,7 @@ int load_free_space_cache(struct btrfs_fs_info *fs_info,
 	u64 num_entries;
 	u64 num_bitmaps;
 	u64 generation;
+	u64 used = btrfs_block_group_used(&block_group->item);
 	u32 cur_crc = ~(u32)0;
 	pgoff_t index = 0;
 	unsigned long first_page_offset;
@@ -393,7 +397,8 @@ int load_free_space_cache(struct btrfs_fs_info *fs_info,
 				break;
 
 			need_loop = 1;
-			e = kzalloc(sizeof(struct btrfs_free_space), GFP_NOFS);
+			e = kmem_cache_zalloc(btrfs_free_space_cachep,
+					      GFP_NOFS);
 			if (!e) {
 				kunmap(page);
 				unlock_page(page);
@@ -405,7 +410,7 @@ int load_free_space_cache(struct btrfs_fs_info *fs_info,
 			e->bytes = le64_to_cpu(entry->bytes);
 			if (!e->bytes) {
 				kunmap(page);
-				kfree(e);
+				kmem_cache_free(btrfs_free_space_cachep, e);
 				unlock_page(page);
 				page_cache_release(page);
 				goto free_cache;
@@ -420,7 +425,8 @@ int load_free_space_cache(struct btrfs_fs_info *fs_info,
 				e->bitmap = kzalloc(PAGE_CACHE_SIZE, GFP_NOFS);
 				if (!e->bitmap) {
 					kunmap(page);
-					kfree(e);
+					kmem_cache_free(
+						btrfs_free_space_cachep, e);
 					unlock_page(page);
 					page_cache_release(page);
 					goto free_cache;
@@ -465,6 +471,17 @@ next:
 		index++;
 	}
 
+	spin_lock(&block_group->tree_lock);
+	if (block_group->free_space != (block_group->key.offset - used -
+					block_group->bytes_super)) {
+		spin_unlock(&block_group->tree_lock);
+		printk(KERN_ERR "block group %llu has an wrong amount of free "
+		       "space\n", block_group->key.objectid);
+		ret = 0;
+		goto free_cache;
+	}
+	spin_unlock(&block_group->tree_lock);
+
 	ret = 1;
 out:
 	kfree(checksums);
@@ -493,8 +510,11 @@ int btrfs_write_out_cache(struct btrfs_root *root,
 	struct list_head *pos, *n;
 	struct page *page;
 	struct extent_state *cached_state = NULL;
+	struct btrfs_free_cluster *cluster = NULL;
+	struct extent_io_tree *unpin = NULL;
 	struct list_head bitmap_list;
 	struct btrfs_key key;
+	u64 start, end, len;
 	u64 bytes = 0;
 	u32 *crc, *checksums;
 	pgoff_t index = 0, last_index = 0;
@@ -503,6 +523,7 @@ int btrfs_write_out_cache(struct btrfs_root *root,
 	int entries = 0;
 	int bitmaps = 0;
 	int ret = 0;
+	bool next_page = false;
 
 	root = root->fs_info->tree_root;
 
@@ -549,6 +570,18 @@ int btrfs_write_out_cache(struct btrfs_root *root,
 	 */
 	first_page_offset = (sizeof(u32) * num_checksums) + sizeof(u64);
 
+	/* Get the cluster for this block_group if it exists */
+	if (!list_empty(&block_group->cluster_list))
+		cluster = list_entry(block_group->cluster_list.next,
+				     struct btrfs_free_cluster,
+				     block_group_list);
+
+	/*
+	 * We shouldn't have switched the pinned extents yet so this is the
+	 * right one
+	 */
+	unpin = root->fs_info->pinned_extents;
+
 	/*
 	 * Lock all pages first so we can lock the extent safely.
 	 *
@@ -578,6 +611,12 @@ int btrfs_write_out_cache(struct btrfs_root *root,
 	lock_extent_bits(&BTRFS_I(inode)->io_tree, 0, i_size_read(inode) - 1,
 			 0, &cached_state, GFP_NOFS);
 
+	/*
+	 * When searching for pinned extents, we need to start at our start
+	 * offset.
+	 */
+	start = block_group->key.objectid;
+
 	/* Write out the extent entries */
 	do {
 		struct btrfs_free_space_entry *entry;
@@ -585,6 +624,8 @@ int btrfs_write_out_cache(struct btrfs_root *root,
 		unsigned long offset = 0;
 		unsigned long start_offset = 0;
 
+		next_page = false;
+
 		if (index == 0) {
 			start_offset = first_page_offset;
 			offset = start_offset;
@@ -596,7 +637,7 @@ int btrfs_write_out_cache(struct btrfs_root *root,
 		entry = addr + start_offset;
 
 		memset(addr, 0, PAGE_CACHE_SIZE);
-		while (1) {
+		while (node && !next_page) {
 			struct btrfs_free_space *e;
 
 			e = rb_entry(node, struct btrfs_free_space, offset_index);
@@ -612,12 +653,49 @@ int btrfs_write_out_cache(struct btrfs_root *root,
 				entry->type = BTRFS_FREE_SPACE_EXTENT;
 			}
 			node = rb_next(node);
-			if (!node)
-				break;
+			if (!node && cluster) {
+				node = rb_first(&cluster->root);
+				cluster = NULL;
+			}
 			offset += sizeof(struct btrfs_free_space_entry);
 			if (offset + sizeof(struct btrfs_free_space_entry) >=
 			    PAGE_CACHE_SIZE)
+				next_page = true;
+			entry++;
+		}
+
+		/*
+		 * We want to add any pinned extents to our free space cache
+		 * so we don't leak the space
+		 */
+		while (!next_page && (start < block_group->key.objectid +
+				      block_group->key.offset)) {
+			ret = find_first_extent_bit(unpin, start, &start, &end,
+						    EXTENT_DIRTY);
+			if (ret) {
+				ret = 0;
+				break;
+			}
+
+			/* This pinned extent is out of our range */
+			if (start >= block_group->key.objectid +
+			    block_group->key.offset)
 				break;
+
+			len = block_group->key.objectid +
+				block_group->key.offset - start;
+			len = min(len, end + 1 - start);
+
+			entries++;
+			entry->offset = cpu_to_le64(start);
+			entry->bytes = cpu_to_le64(len);
+			entry->type = BTRFS_FREE_SPACE_EXTENT;
+
+			start = end + 1;
+			offset += sizeof(struct btrfs_free_space_entry);
+			if (offset + sizeof(struct btrfs_free_space_entry) >=
+			    PAGE_CACHE_SIZE)
+				next_page = true;
 			entry++;
 		}
 		*crc = ~(u32)0;
@@ -648,7 +726,7 @@ int btrfs_write_out_cache(struct btrfs_root *root,
 		page_cache_release(page);
 
 		index++;
-	} while (node);
+	} while (node || next_page);
 
 	/* Write out the bitmaps */
 	list_for_each_safe(pos, n, &bitmap_list) {
@@ -1187,7 +1265,7 @@ static void free_bitmap(struct btrfs_block_group_cache *block_group,
 {
 	unlink_free_space(block_group, bitmap_info);
 	kfree(bitmap_info->bitmap);
-	kfree(bitmap_info);
+	kmem_cache_free(btrfs_free_space_cachep, bitmap_info);
 	block_group->total_bitmaps--;
 	recalculate_thresholds(block_group);
 }
@@ -1285,9 +1363,22 @@ static int insert_into_bitmap(struct btrfs_block_group_cache *block_group,
 	 * If we are below the extents threshold then we can add this as an
 	 * extent, and don't have to deal with the bitmap
 	 */
-	if (block_group->free_extents < block_group->extents_thresh &&
-	    info->bytes > block_group->sectorsize * 4)
-		return 0;
+	if (block_group->free_extents < block_group->extents_thresh) {
+		/*
+		 * If this block group has some small extents we don't want to
+		 * use up all of our free slots in the cache with them, we want
+		 * to reserve them to larger extents, however if we have plent
+		 * of cache left then go ahead an dadd them, no sense in adding
+		 * the overhead of a bitmap if we don't have to.
+		 */
+		if (info->bytes <= block_group->sectorsize * 4) {
+			if (block_group->free_extents * 2 <=
+			    block_group->extents_thresh)
+				return 0;
+		} else {
+			return 0;
+		}
+	}
 
 	/*
 	 * some block groups are so tiny they can't be enveloped by a bitmap, so
@@ -1342,8 +1433,8 @@ new_bitmap:
 
 		/* no pre-allocated info, allocate a new one */
 		if (!info) {
-			info = kzalloc(sizeof(struct btrfs_free_space),
-				       GFP_NOFS);
+			info = kmem_cache_zalloc(btrfs_free_space_cachep,
+						 GFP_NOFS);
 			if (!info) {
 				spin_lock(&block_group->tree_lock);
 				ret = -ENOMEM;
@@ -1365,7 +1456,7 @@ out:
 	if (info) {
 		if (info->bitmap)
 			kfree(info->bitmap);
-		kfree(info);
+		kmem_cache_free(btrfs_free_space_cachep, info);
 	}
 
 	return ret;
@@ -1398,7 +1489,7 @@ bool try_merge_free_space(struct btrfs_block_group_cache *block_group,
 		else
 			__unlink_free_space(block_group, right_info);
 		info->bytes += right_info->bytes;
-		kfree(right_info);
+		kmem_cache_free(btrfs_free_space_cachep, right_info);
 		merged = true;
 	}
 
@@ -1410,7 +1501,7 @@ bool try_merge_free_space(struct btrfs_block_group_cache *block_group,
 			__unlink_free_space(block_group, left_info);
 		info->offset = left_info->offset;
 		info->bytes += left_info->bytes;
-		kfree(left_info);
+		kmem_cache_free(btrfs_free_space_cachep, left_info);
 		merged = true;
 	}
 
@@ -1423,7 +1514,7 @@ int btrfs_add_free_space(struct btrfs_block_group_cache *block_group,
 	struct btrfs_free_space *info;
 	int ret = 0;
 
-	info = kzalloc(sizeof(struct btrfs_free_space), GFP_NOFS);
+	info = kmem_cache_zalloc(btrfs_free_space_cachep, GFP_NOFS);
 	if (!info)
 		return -ENOMEM;
 
@@ -1450,7 +1541,7 @@ int btrfs_add_free_space(struct btrfs_block_group_cache *block_group,
 link:
 	ret = link_free_space(block_group, info);
 	if (ret)
-		kfree(info);
+		kmem_cache_free(btrfs_free_space_cachep, info);
 out:
 	spin_unlock(&block_group->tree_lock);
 
@@ -1520,7 +1611,7 @@ again:
 			kfree(info->bitmap);
 			block_group->total_bitmaps--;
 		}
-		kfree(info);
+		kmem_cache_free(btrfs_free_space_cachep, info);
 		goto out_lock;
 	}
 
@@ -1556,7 +1647,7 @@ again:
 			/* the hole we're creating ends at the end
 			 * of the info struct, just free the info
 			 */
-			kfree(info);
+			kmem_cache_free(btrfs_free_space_cachep, info);
 		}
 		spin_unlock(&block_group->tree_lock);
 
@@ -1629,30 +1720,28 @@ __btrfs_return_cluster_to_free_space(
 {
 	struct btrfs_free_space *entry;
 	struct rb_node *node;
-	bool bitmap;
 
 	spin_lock(&cluster->lock);
 	if (cluster->block_group != block_group)
 		goto out;
 
-	bitmap = cluster->points_to_bitmap;
 	cluster->block_group = NULL;
 	cluster->window_start = 0;
 	list_del_init(&cluster->block_group_list);
-	cluster->points_to_bitmap = false;
-
-	if (bitmap)
-		goto out;
 
 	node = rb_first(&cluster->root);
 	while (node) {
+		bool bitmap;
+
 		entry = rb_entry(node, struct btrfs_free_space, offset_index);
 		node = rb_next(&entry->offset_index);
 		rb_erase(&entry->offset_index, &cluster->root);
-		BUG_ON(entry->bitmap);
-		try_merge_free_space(block_group, entry, false);
+
+		bitmap = (entry->bitmap != NULL);
+		if (!bitmap)
+			try_merge_free_space(block_group, entry, false);
 		tree_insert_offset(&block_group->free_space_offset,
-				   entry->offset, &entry->offset_index, 0);
+				   entry->offset, &entry->offset_index, bitmap);
 	}
 	cluster->root = RB_ROOT;
 
@@ -1689,7 +1778,7 @@ void btrfs_remove_free_space_cache(struct btrfs_block_group_cache *block_group)
 		unlink_free_space(block_group, info);
 		if (info->bitmap)
 			kfree(info->bitmap);
-		kfree(info);
+		kmem_cache_free(btrfs_free_space_cachep, info);
 		if (need_resched()) {
 			spin_unlock(&block_group->tree_lock);
 			cond_resched();
@@ -1722,7 +1811,7 @@ u64 btrfs_find_space_for_alloc(struct btrfs_block_group_cache *block_group,
 		entry->offset += bytes;
 		entry->bytes -= bytes;
 		if (!entry->bytes)
-			kfree(entry);
+			kmem_cache_free(btrfs_free_space_cachep, entry);
 		else
 			link_free_space(block_group, entry);
 	}
@@ -1775,50 +1864,24 @@ int btrfs_return_cluster_to_free_space(
 
 static u64 btrfs_alloc_from_bitmap(struct btrfs_block_group_cache *block_group,
 				   struct btrfs_free_cluster *cluster,
+				   struct btrfs_free_space *entry,
 				   u64 bytes, u64 min_start)
 {
-	struct btrfs_free_space *entry;
 	int err;
 	u64 search_start = cluster->window_start;
 	u64 search_bytes = bytes;
 	u64 ret = 0;
 
-	spin_lock(&block_group->tree_lock);
-	spin_lock(&cluster->lock);
-
-	if (!cluster->points_to_bitmap)
-		goto out;
-
-	if (cluster->block_group != block_group)
-		goto out;
-
-	/*
-	 * search_start is the beginning of the bitmap, but at some point it may
-	 * be a good idea to point to the actual start of the free area in the
-	 * bitmap, so do the offset_to_bitmap trick anyway, and set bitmap_only
-	 * to 1 to make sure we get the bitmap entry
-	 */
-	entry = tree_search_offset(block_group,
-				   offset_to_bitmap(block_group, search_start),
-				   1, 0);
-	if (!entry || !entry->bitmap)
-		goto out;
-
 	search_start = min_start;
 	search_bytes = bytes;
 
 	err = search_bitmap(block_group, entry, &search_start,
 			    &search_bytes);
 	if (err)
-		goto out;
+		return 0;
 
 	ret = search_start;
 	bitmap_clear_bits(block_group, entry, ret, bytes);
-	if (entry->bytes == 0)
-		free_bitmap(block_group, entry);
-out:
-	spin_unlock(&cluster->lock);
-	spin_unlock(&block_group->tree_lock);
 
 	return ret;
 }
@@ -1836,10 +1899,6 @@ u64 btrfs_alloc_from_cluster(struct btrfs_block_group_cache *block_group,
 	struct rb_node *node;
 	u64 ret = 0;
 
-	if (cluster->points_to_bitmap)
-		return btrfs_alloc_from_bitmap(block_group, cluster, bytes,
-					       min_start);
-
 	spin_lock(&cluster->lock);
 	if (bytes > cluster->max_size)
 		goto out;
@@ -1852,9 +1911,9 @@ u64 btrfs_alloc_from_cluster(struct btrfs_block_group_cache *block_group,
 		goto out;
 
 	entry = rb_entry(node, struct btrfs_free_space, offset_index);
-
 	while(1) {
-		if (entry->bytes < bytes || entry->offset < min_start) {
+		if (entry->bytes < bytes ||
+		    (!entry->bitmap && entry->offset < min_start)) {
 			struct rb_node *node;
 
 			node = rb_next(&entry->offset_index);
@@ -1864,10 +1923,27 @@ u64 btrfs_alloc_from_cluster(struct btrfs_block_group_cache *block_group,
 					 offset_index);
 			continue;
 		}
-		ret = entry->offset;
 
-		entry->offset += bytes;
-		entry->bytes -= bytes;
+		if (entry->bitmap) {
+			ret = btrfs_alloc_from_bitmap(block_group,
+						      cluster, entry, bytes,
+						      min_start);
+			if (ret == 0) {
+				struct rb_node *node;
+				node = rb_next(&entry->offset_index);
+				if (!node)
+					break;
+				entry = rb_entry(node, struct btrfs_free_space,
+						 offset_index);
+				continue;
+			}
+		} else {
+
+			ret = entry->offset;
+
+			entry->offset += bytes;
+			entry->bytes -= bytes;
+		}
 
 		if (entry->bytes == 0)
 			rb_erase(&entry->offset_index, &cluster->root);
@@ -1884,7 +1960,12 @@ out:
 	block_group->free_space -= bytes;
 	if (entry->bytes == 0) {
 		block_group->free_extents--;
-		kfree(entry);
+		if (entry->bitmap) {
+			kfree(entry->bitmap);
+			block_group->total_bitmaps--;
+			recalculate_thresholds(block_group);
+		}
+		kmem_cache_free(btrfs_free_space_cachep, entry);
 	}
 
 	spin_unlock(&block_group->tree_lock);
@@ -1904,12 +1985,13 @@ static int btrfs_bitmap_cluster(struct btrfs_block_group_cache *block_group,
 	unsigned long found_bits;
 	unsigned long start = 0;
 	unsigned long total_found = 0;
+	int ret;
 	bool found = false;
 
 	i = offset_to_bit(entry->offset, block_group->sectorsize,
 			  max_t(u64, offset, entry->offset));
-	search_bits = bytes_to_bits(min_bytes, block_group->sectorsize);
-	total_bits = bytes_to_bits(bytes, block_group->sectorsize);
+	search_bits = bytes_to_bits(bytes, block_group->sectorsize);
+	total_bits = bytes_to_bits(min_bytes, block_group->sectorsize);
 
 again:
 	found_bits = 0;
@@ -1926,7 +2008,7 @@ again:
 	}
 
 	if (!found_bits)
-		return -1;
+		return -ENOSPC;
 
 	if (!found) {
 		start = i;
@@ -1950,189 +2032,208 @@ again:
 
 	cluster->window_start = start * block_group->sectorsize +
 		entry->offset;
-	cluster->points_to_bitmap = true;
+	rb_erase(&entry->offset_index, &block_group->free_space_offset);
+	ret = tree_insert_offset(&cluster->root, entry->offset,
+				 &entry->offset_index, 1);
+	BUG_ON(ret);
 
 	return 0;
 }
 
 /*
- * here we try to find a cluster of blocks in a block group.  The goal
- * is to find at least bytes free and up to empty_size + bytes free.
- * We might not find them all in one contiguous area.
- *
- * returns zero and sets up cluster if things worked out, otherwise
- * it returns -enospc
+ * This searches the block group for just extents to fill the cluster with.
  */
-int btrfs_find_space_cluster(struct btrfs_trans_handle *trans,
-			     struct btrfs_root *root,
-			     struct btrfs_block_group_cache *block_group,
-			     struct btrfs_free_cluster *cluster,
-			     u64 offset, u64 bytes, u64 empty_size)
+static int setup_cluster_no_bitmap(struct btrfs_block_group_cache *block_group,
+				   struct btrfs_free_cluster *cluster,
+				   u64 offset, u64 bytes, u64 min_bytes)
 {
+	struct btrfs_free_space *first = NULL;
 	struct btrfs_free_space *entry = NULL;
+	struct btrfs_free_space *prev = NULL;
+	struct btrfs_free_space *last;
 	struct rb_node *node;
-	struct btrfs_free_space *next;
-	struct btrfs_free_space *last = NULL;
-	u64 min_bytes;
 	u64 window_start;
 	u64 window_free;
-	u64 max_extent = 0;
-	bool found_bitmap = false;
-	int ret;
+	u64 max_extent;
+	u64 max_gap = 128 * 1024;
 
-	/* for metadata, allow allocates with more holes */
-	if (btrfs_test_opt(root, SSD_SPREAD)) {
-		min_bytes = bytes + empty_size;
-	} else if (block_group->flags & BTRFS_BLOCK_GROUP_METADATA) {
-		/*
-		 * we want to do larger allocations when we are
-		 * flushing out the delayed refs, it helps prevent
-		 * making more work as we go along.
-		 */
-		if (trans->transaction->delayed_refs.flushing)
-			min_bytes = max(bytes, (bytes + empty_size) >> 1);
-		else
-			min_bytes = max(bytes, (bytes + empty_size) >> 4);
-	} else
-		min_bytes = max(bytes, (bytes + empty_size) >> 2);
-
-	spin_lock(&block_group->tree_lock);
-	spin_lock(&cluster->lock);
-
-	/* someone already found a cluster, hooray */
-	if (cluster->block_group) {
-		ret = 0;
-		goto out;
-	}
-again:
-	entry = tree_search_offset(block_group, offset, found_bitmap, 1);
-	if (!entry) {
-		ret = -ENOSPC;
-		goto out;
-	}
+	entry = tree_search_offset(block_group, offset, 0, 1);
+	if (!entry)
+		return -ENOSPC;
 
 	/*
-	 * If found_bitmap is true, we exhausted our search for extent entries,
-	 * and we just want to search all of the bitmaps that we can find, and
-	 * ignore any extent entries we find.
+	 * We don't want bitmaps, so just move along until we find a normal
+	 * extent entry.
 	 */
-	while (entry->bitmap || found_bitmap ||
-	       (!entry->bitmap && entry->bytes < min_bytes)) {
-		struct rb_node *node = rb_next(&entry->offset_index);
-
-		if (entry->bitmap && entry->bytes > bytes + empty_size) {
-			ret = btrfs_bitmap_cluster(block_group, entry, cluster,
-						   offset, bytes + empty_size,
-						   min_bytes);
-			if (!ret)
-				goto got_it;
-		}
-
-		if (!node) {
-			ret = -ENOSPC;
-			goto out;
-		}
+	while (entry->bitmap) {
+		node = rb_next(&entry->offset_index);
+		if (!node)
+			return -ENOSPC;
 		entry = rb_entry(node, struct btrfs_free_space, offset_index);
 	}
 
-	/*
-	 * We already searched all the extent entries from the passed in offset
-	 * to the end and didn't find enough space for the cluster, and we also
-	 * didn't find any bitmaps that met our criteria, just go ahead and exit
-	 */
-	if (found_bitmap) {
-		ret = -ENOSPC;
-		goto out;
-	}
-
-	cluster->points_to_bitmap = false;
 	window_start = entry->offset;
 	window_free = entry->bytes;
-	last = entry;
 	max_extent = entry->bytes;
+	first = entry;
+	last = entry;
+	prev = entry;
 
-	while (1) {
-		/* out window is just right, lets fill it */
-		if (window_free >= bytes + empty_size)
-			break;
-
-		node = rb_next(&last->offset_index);
-		if (!node) {
-			if (found_bitmap)
-				goto again;
-			ret = -ENOSPC;
-			goto out;
-		}
-		next = rb_entry(node, struct btrfs_free_space, offset_index);
+	while (window_free <= min_bytes) {
+		node = rb_next(&entry->offset_index);
+		if (!node)
+			return -ENOSPC;
+		entry = rb_entry(node, struct btrfs_free_space, offset_index);
 
-		/*
-		 * we found a bitmap, so if this search doesn't result in a
-		 * cluster, we know to go and search again for the bitmaps and
-		 * start looking for space there
-		 */
-		if (next->bitmap) {
-			if (!found_bitmap)
-				offset = next->offset;
-			found_bitmap = true;
-			last = next;
+		if (entry->bitmap)
 			continue;
-		}
-
 		/*
 		 * we haven't filled the empty size and the window is
 		 * very large.  reset and try again
 		 */
-		if (next->offset - (last->offset + last->bytes) > 128 * 1024 ||
-		    next->offset - window_start > (bytes + empty_size) * 2) {
-			entry = next;
+		if (entry->offset - (prev->offset + prev->bytes) > max_gap ||
+		    entry->offset - window_start > (min_bytes * 2)) {
+			first = entry;
 			window_start = entry->offset;
 			window_free = entry->bytes;
 			last = entry;
 			max_extent = entry->bytes;
 		} else {
-			last = next;
-			window_free += next->bytes;
+			last = entry;
+			window_free += entry->bytes;
 			if (entry->bytes > max_extent)
 				max_extent = entry->bytes;
 		}
+		prev = entry;
 	}
 
-	cluster->window_start = entry->offset;
+	cluster->window_start = first->offset;
+
+	node = &first->offset_index;
 
 	/*
 	 * now we've found our entries, pull them out of the free space
 	 * cache and put them into the cluster rbtree
-	 *
-	 * The cluster includes an rbtree, but only uses the offset index
-	 * of each free space cache entry.
 	 */
-	while (1) {
+	do {
+		int ret;
+
+		entry = rb_entry(node, struct btrfs_free_space, offset_index);
 		node = rb_next(&entry->offset_index);
-		if (entry->bitmap && node) {
-			entry = rb_entry(node, struct btrfs_free_space,
-					 offset_index);
+		if (entry->bitmap)
 			continue;
-		} else if (entry->bitmap && !node) {
-			break;
-		}
 
 		rb_erase(&entry->offset_index, &block_group->free_space_offset);
 		ret = tree_insert_offset(&cluster->root, entry->offset,
 					 &entry->offset_index, 0);
 		BUG_ON(ret);
+	} while (node && entry != last);
 
-		if (!node || entry == last)
-			break;
+	cluster->max_size = max_extent;
+
+	return 0;
+}
+
+/*
+ * This specifically looks for bitmaps that may work in the cluster, we assume
+ * that we have already failed to find extents that will work.
+ */
+static int setup_cluster_bitmap(struct btrfs_block_group_cache *block_group,
+				struct btrfs_free_cluster *cluster,
+				u64 offset, u64 bytes, u64 min_bytes)
+{
+	struct btrfs_free_space *entry;
+	struct rb_node *node;
+	int ret = -ENOSPC;
+
+	if (block_group->total_bitmaps == 0)
+		return -ENOSPC;
 
+	entry = tree_search_offset(block_group,
+				   offset_to_bitmap(block_group, offset),
+				   0, 1);
+	if (!entry)
+		return -ENOSPC;
+
+	node = &entry->offset_index;
+	do {
 		entry = rb_entry(node, struct btrfs_free_space, offset_index);
+		node = rb_next(&entry->offset_index);
+		if (!entry->bitmap)
+			continue;
+		if (entry->bytes < min_bytes)
+			continue;
+		ret = btrfs_bitmap_cluster(block_group, entry, cluster, offset,
+					   bytes, min_bytes);
+	} while (ret && node);
+
+	return ret;
+}
+
+/*
+ * here we try to find a cluster of blocks in a block group.  The goal
+ * is to find at least bytes free and up to empty_size + bytes free.
+ * We might not find them all in one contiguous area.
+ *
+ * returns zero and sets up cluster if things worked out, otherwise
+ * it returns -enospc
+ */
+int btrfs_find_space_cluster(struct btrfs_trans_handle *trans,
+			     struct btrfs_root *root,
+			     struct btrfs_block_group_cache *block_group,
+			     struct btrfs_free_cluster *cluster,
+			     u64 offset, u64 bytes, u64 empty_size)
+{
+	u64 min_bytes;
+	int ret;
+
+	/* for metadata, allow allocates with more holes */
+	if (btrfs_test_opt(root, SSD_SPREAD)) {
+		min_bytes = bytes + empty_size;
+	} else if (block_group->flags & BTRFS_BLOCK_GROUP_METADATA) {
+		/*
+		 * we want to do larger allocations when we are
+		 * flushing out the delayed refs, it helps prevent
+		 * making more work as we go along.
+		 */
+		if (trans->transaction->delayed_refs.flushing)
+			min_bytes = max(bytes, (bytes + empty_size) >> 1);
+		else
+			min_bytes = max(bytes, (bytes + empty_size) >> 4);
+	} else
+		min_bytes = max(bytes, (bytes + empty_size) >> 2);
+
+	spin_lock(&block_group->tree_lock);
+
+	/*
+	 * If we know we don't have enough space to make a cluster don't even
+	 * bother doing all the work to try and find one.
+	 */
+	if (block_group->free_space < min_bytes) {
+		spin_unlock(&block_group->tree_lock);
+		return -ENOSPC;
 	}
 
-	cluster->max_size = max_extent;
-got_it:
-	ret = 0;
-	atomic_inc(&block_group->count);
-	list_add_tail(&cluster->block_group_list, &block_group->cluster_list);
-	cluster->block_group = block_group;
+	spin_lock(&cluster->lock);
+
+	/* someone already found a cluster, hooray */
+	if (cluster->block_group) {
+		ret = 0;
+		goto out;
+	}
+
+	ret = setup_cluster_no_bitmap(block_group, cluster, offset, bytes,
+				      min_bytes);
+	if (ret)
+		ret = setup_cluster_bitmap(block_group, cluster, offset,
+					   bytes, min_bytes);
+
+	if (!ret) {
+		atomic_inc(&block_group->count);
+		list_add_tail(&cluster->block_group_list,
+			      &block_group->cluster_list);
+		cluster->block_group = block_group;
+	}
 out:
 	spin_unlock(&cluster->lock);
 	spin_unlock(&block_group->tree_lock);
@@ -2149,8 +2250,99 @@ void btrfs_init_free_cluster(struct btrfs_free_cluster *cluster)
 	spin_lock_init(&cluster->refill_lock);
 	cluster->root = RB_ROOT;
 	cluster->max_size = 0;
-	cluster->points_to_bitmap = false;
 	INIT_LIST_HEAD(&cluster->block_group_list);
 	cluster->block_group = NULL;
 }
 
+int btrfs_trim_block_group(struct btrfs_block_group_cache *block_group,
+			   u64 *trimmed, u64 start, u64 end, u64 minlen)
+{
+	struct btrfs_free_space *entry = NULL;
+	struct btrfs_fs_info *fs_info = block_group->fs_info;
+	u64 bytes = 0;
+	u64 actually_trimmed;
+	int ret = 0;
+
+	*trimmed = 0;
+
+	while (start < end) {
+		spin_lock(&block_group->tree_lock);
+
+		if (block_group->free_space < minlen) {
+			spin_unlock(&block_group->tree_lock);
+			break;
+		}
+
+		entry = tree_search_offset(block_group, start, 0, 1);
+		if (!entry)
+			entry = tree_search_offset(block_group,
+						   offset_to_bitmap(block_group,
+								    start),
+						   1, 1);
+
+		if (!entry || entry->offset >= end) {
+			spin_unlock(&block_group->tree_lock);
+			break;
+		}
+
+		if (entry->bitmap) {
+			ret = search_bitmap(block_group, entry, &start, &bytes);
+			if (!ret) {
+				if (start >= end) {
+					spin_unlock(&block_group->tree_lock);
+					break;
+				}
+				bytes = min(bytes, end - start);
+				bitmap_clear_bits(block_group, entry,
+						  start, bytes);
+				if (entry->bytes == 0)
+					free_bitmap(block_group, entry);
+			} else {
+				start = entry->offset + BITS_PER_BITMAP *
+					block_group->sectorsize;
+				spin_unlock(&block_group->tree_lock);
+				ret = 0;
+				continue;
+			}
+		} else {
+			start = entry->offset;
+			bytes = min(entry->bytes, end - start);
+			unlink_free_space(block_group, entry);
+			kfree(entry);
+		}
+
+		spin_unlock(&block_group->tree_lock);
+
+		if (bytes >= minlen) {
+			int update_ret;
+			update_ret = btrfs_update_reserved_bytes(block_group,
+								 bytes, 1, 1);
+
+			ret = btrfs_error_discard_extent(fs_info->extent_root,
+							 start,
+							 bytes,
+							 &actually_trimmed);
+
+			btrfs_add_free_space(block_group,
+					     start, bytes);
+			if (!update_ret)
+				btrfs_update_reserved_bytes(block_group,
+							    bytes, 0, 1);
+
+			if (ret)
+				break;
+			*trimmed += actually_trimmed;
+		}
+		start += bytes;
+		bytes = 0;
+
+		if (fatal_signal_pending(current)) {
+			ret = -ERESTARTSYS;
+			break;
+		}
+
+		cond_resched();
+	}
+
+	return ret;
+}
diff --git a/fs/btrfs/free-space-cache.h b/fs/btrfs/free-space-cache.h
index e49ca5c321b5..65c3b935289f 100644
--- a/fs/btrfs/free-space-cache.h
+++ b/fs/btrfs/free-space-cache.h
@@ -68,4 +68,6 @@ u64 btrfs_alloc_from_cluster(struct btrfs_block_group_cache *block_group,
 int btrfs_return_cluster_to_free_space(
 			       struct btrfs_block_group_cache *block_group,
 			       struct btrfs_free_cluster *cluster);
+int btrfs_trim_block_group(struct btrfs_block_group_cache *block_group,
+			   u64 *trimmed, u64 start, u64 end, u64 minlen);
 #endif
diff --git a/fs/btrfs/inode-map.c b/fs/btrfs/inode-map.c
index c56eb5909172..c05a08f4c411 100644
--- a/fs/btrfs/inode-map.c
+++ b/fs/btrfs/inode-map.c
@@ -30,7 +30,8 @@ int btrfs_find_highest_inode(struct btrfs_root *root, u64 *objectid)
 	int slot;
 
 	path = btrfs_alloc_path();
-	BUG_ON(!path);
+	if (!path)
+		return -ENOMEM;
 
 	search_key.objectid = BTRFS_LAST_FREE_OBJECTID;
 	search_key.type = -1;
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 119520bdb9a5..5cc64ab9c485 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -50,6 +50,7 @@
 #include "tree-log.h"
 #include "compression.h"
 #include "locking.h"
+#include "free-space-cache.h"
 
 struct btrfs_iget_args {
 	u64 ino;
@@ -70,6 +71,7 @@ static struct kmem_cache *btrfs_inode_cachep;
 struct kmem_cache *btrfs_trans_handle_cachep;
 struct kmem_cache *btrfs_transaction_cachep;
 struct kmem_cache *btrfs_path_cachep;
+struct kmem_cache *btrfs_free_space_cachep;
 
 #define S_SHIFT 12
 static unsigned char btrfs_type_by_mode[S_IFMT >> S_SHIFT] = {
@@ -82,7 +84,8 @@ static unsigned char btrfs_type_by_mode[S_IFMT >> S_SHIFT] = {
 	[S_IFLNK >> S_SHIFT]	= BTRFS_FT_SYMLINK,
 };
 
-static void btrfs_truncate(struct inode *inode);
+static int btrfs_setsize(struct inode *inode, loff_t newsize);
+static int btrfs_truncate(struct inode *inode);
 static int btrfs_finish_ordered_io(struct inode *inode, u64 start, u64 end);
 static noinline int cow_file_range(struct inode *inode,
 				   struct page *locked_page,
@@ -109,6 +112,7 @@ static int btrfs_init_inode_security(struct btrfs_trans_handle *trans,
 static noinline int insert_inline_extent(struct btrfs_trans_handle *trans,
 				struct btrfs_root *root, struct inode *inode,
 				u64 start, size_t size, size_t compressed_size,
+				int compress_type,
 				struct page **compressed_pages)
 {
 	struct btrfs_key key;
@@ -123,12 +127,9 @@ static noinline int insert_inline_extent(struct btrfs_trans_handle *trans,
 	size_t cur_size = size;
 	size_t datasize;
 	unsigned long offset;
-	int compress_type = BTRFS_COMPRESS_NONE;
 
-	if (compressed_size && compressed_pages) {
-		compress_type = root->fs_info->compress_type;
+	if (compressed_size && compressed_pages)
 		cur_size = compressed_size;
-	}
 
 	path = btrfs_alloc_path();
 	if (!path)
@@ -218,7 +219,7 @@ fail:
 static noinline int cow_file_range_inline(struct btrfs_trans_handle *trans,
 				 struct btrfs_root *root,
 				 struct inode *inode, u64 start, u64 end,
-				 size_t compressed_size,
+				 size_t compressed_size, int compress_type,
 				 struct page **compressed_pages)
 {
 	u64 isize = i_size_read(inode);
@@ -251,7 +252,7 @@ static noinline int cow_file_range_inline(struct btrfs_trans_handle *trans,
 		inline_len = min_t(u64, isize, actual_end);
 	ret = insert_inline_extent(trans, root, inode, start,
 				   inline_len, compressed_size,
-				   compressed_pages);
+				   compress_type, compressed_pages);
 	BUG_ON(ret);
 	btrfs_delalloc_release_metadata(inode, end + 1 - start);
 	btrfs_drop_extent_cache(inode, start, aligned_end - 1, 0);
@@ -288,6 +289,7 @@ static noinline int add_async_extent(struct async_cow *cow,
 	struct async_extent *async_extent;
 
 	async_extent = kmalloc(sizeof(*async_extent), GFP_NOFS);
+	BUG_ON(!async_extent);
 	async_extent->start = start;
 	async_extent->ram_size = ram_size;
 	async_extent->compressed_size = compressed_size;
@@ -382,9 +384,11 @@ again:
 	 */
 	if (!(BTRFS_I(inode)->flags & BTRFS_INODE_NOCOMPRESS) &&
 	    (btrfs_test_opt(root, COMPRESS) ||
-	     (BTRFS_I(inode)->force_compress))) {
+	     (BTRFS_I(inode)->force_compress) ||
+	     (BTRFS_I(inode)->flags & BTRFS_INODE_COMPRESS))) {
 		WARN_ON(pages);
 		pages = kzalloc(sizeof(struct page *) * nr_pages, GFP_NOFS);
+		BUG_ON(!pages);
 
 		if (BTRFS_I(inode)->force_compress)
 			compress_type = BTRFS_I(inode)->force_compress;
@@ -427,12 +431,13 @@ again:
 			 * to make an uncompressed inline extent.
 			 */
 			ret = cow_file_range_inline(trans, root, inode,
-						    start, end, 0, NULL);
+						    start, end, 0, 0, NULL);
 		} else {
 			/* try making a compressed inline extent */
 			ret = cow_file_range_inline(trans, root, inode,
 						    start, end,
-						    total_compressed, pages);
+						    total_compressed,
+						    compress_type, pages);
 		}
 		if (ret == 0) {
 			/*
@@ -786,7 +791,7 @@ static noinline int cow_file_range(struct inode *inode,
 	if (start == 0) {
 		/* lets try to make an inline extent */
 		ret = cow_file_range_inline(trans, root, inode,
-					    start, end, 0, NULL);
+					    start, end, 0, 0, NULL);
 		if (ret == 0) {
 			extent_clear_unlock_delalloc(inode,
 				     &BTRFS_I(inode)->io_tree,
@@ -1254,7 +1259,8 @@ static int run_delalloc_range(struct inode *inode, struct page *locked_page,
 		ret = run_delalloc_nocow(inode, locked_page, start, end,
 					 page_started, 0, nr_written);
 	else if (!btrfs_test_opt(root, COMPRESS) &&
-		 !(BTRFS_I(inode)->force_compress))
+		 !(BTRFS_I(inode)->force_compress) &&
+		 !(BTRFS_I(inode)->flags & BTRFS_INODE_COMPRESS))
 		ret = cow_file_range(inode, locked_page, start, end,
 				      page_started, nr_written, 1);
 	else
@@ -1461,8 +1467,11 @@ static int btrfs_submit_bio_hook(struct inode *inode, int rw, struct bio *bio,
 		if (bio_flags & EXTENT_BIO_COMPRESSED) {
 			return btrfs_submit_compressed_read(inode, bio,
 						    mirror_num, bio_flags);
-		} else if (!skip_sum)
-			btrfs_lookup_bio_sums(root, inode, bio, NULL);
+		} else if (!skip_sum) {
+			ret = btrfs_lookup_bio_sums(root, inode, bio, NULL);
+			if (ret)
+				return ret;
+		}
 		goto mapit;
 	} else if (!skip_sum) {
 		/* csum items have already been cloned */
@@ -1785,6 +1794,8 @@ out:
 static int btrfs_writepage_end_io_hook(struct page *page, u64 start, u64 end,
 				struct extent_state *state, int uptodate)
 {
+	trace_btrfs_writepage_end_io_hook(page, start, end, uptodate);
+
 	ClearPagePrivate2(page);
 	return btrfs_finish_ordered_io(page->mapping->host, start, end);
 }
@@ -1895,10 +1906,10 @@ static int btrfs_io_failed_hook(struct bio *failed_bio,
 	else
 		rw = READ;
 
-	BTRFS_I(inode)->io_tree.ops->submit_bio_hook(inode, rw, bio,
+	ret = BTRFS_I(inode)->io_tree.ops->submit_bio_hook(inode, rw, bio,
 						      failrec->last_mirror,
 						      failrec->bio_flags, 0);
-	return 0;
+	return ret;
 }
 
 /*
@@ -2210,8 +2221,6 @@ int btrfs_orphan_add(struct btrfs_trans_handle *trans, struct inode *inode)
 			insert = 1;
 #endif
 		insert = 1;
-	} else {
-		WARN_ON(!BTRFS_I(inode)->orphan_meta_reserved);
 	}
 
 	if (!BTRFS_I(inode)->orphan_meta_reserved) {
@@ -2282,7 +2291,7 @@ int btrfs_orphan_del(struct btrfs_trans_handle *trans, struct inode *inode)
  * this cleans up any orphans that may be left on the list from the last use
  * of this root.
  */
-void btrfs_orphan_cleanup(struct btrfs_root *root)
+int btrfs_orphan_cleanup(struct btrfs_root *root)
 {
 	struct btrfs_path *path;
 	struct extent_buffer *leaf;
@@ -2292,10 +2301,13 @@ void btrfs_orphan_cleanup(struct btrfs_root *root)
 	int ret = 0, nr_unlink = 0, nr_truncate = 0;
 
 	if (cmpxchg(&root->orphan_cleanup_state, 0, ORPHAN_CLEANUP_STARTED))
-		return;
+		return 0;
 
 	path = btrfs_alloc_path();
-	BUG_ON(!path);
+	if (!path) {
+		ret = -ENOMEM;
+		goto out;
+	}
 	path->reada = -1;
 
 	key.objectid = BTRFS_ORPHAN_OBJECTID;
@@ -2304,18 +2316,16 @@ void btrfs_orphan_cleanup(struct btrfs_root *root)
 
 	while (1) {
 		ret = btrfs_search_slot(NULL, root, &key, path, 0, 0);
-		if (ret < 0) {
-			printk(KERN_ERR "Error searching slot for orphan: %d"
-			       "\n", ret);
-			break;
-		}
+		if (ret < 0)
+			goto out;
 
 		/*
 		 * if ret == 0 means we found what we were searching for, which
-		 * is weird, but possible, so only screw with path if we didnt
+		 * is weird, but possible, so only screw with path if we didn't
 		 * find the key and see if we have stuff that matches
 		 */
 		if (ret > 0) {
+			ret = 0;
 			if (path->slots[0] == 0)
 				break;
 			path->slots[0]--;
@@ -2343,7 +2353,10 @@ void btrfs_orphan_cleanup(struct btrfs_root *root)
 		found_key.type = BTRFS_INODE_ITEM_KEY;
 		found_key.offset = 0;
 		inode = btrfs_iget(root->fs_info->sb, &found_key, root, NULL);
-		BUG_ON(IS_ERR(inode));
+		if (IS_ERR(inode)) {
+			ret = PTR_ERR(inode);
+			goto out;
+		}
 
 		/*
 		 * add this inode to the orphan list so btrfs_orphan_del does
@@ -2361,7 +2374,10 @@ void btrfs_orphan_cleanup(struct btrfs_root *root)
 		 */
 		if (is_bad_inode(inode)) {
 			trans = btrfs_start_transaction(root, 0);
-			BUG_ON(IS_ERR(trans));
+			if (IS_ERR(trans)) {
+				ret = PTR_ERR(trans);
+				goto out;
+			}
 			btrfs_orphan_del(trans, inode);
 			btrfs_end_transaction(trans, root);
 			iput(inode);
@@ -2370,17 +2386,22 @@ void btrfs_orphan_cleanup(struct btrfs_root *root)
 
 		/* if we have links, this was a truncate, lets do that */
 		if (inode->i_nlink) {
+			if (!S_ISREG(inode->i_mode)) {
+				WARN_ON(1);
+				iput(inode);
+				continue;
+			}
 			nr_truncate++;
-			btrfs_truncate(inode);
+			ret = btrfs_truncate(inode);
 		} else {
 			nr_unlink++;
 		}
 
 		/* this will do delete_inode and everything for us */
 		iput(inode);
+		if (ret)
+			goto out;
 	}
-	btrfs_free_path(path);
-
 	root->orphan_cleanup_state = ORPHAN_CLEANUP_DONE;
 
 	if (root->orphan_block_rsv)
@@ -2389,14 +2410,20 @@ void btrfs_orphan_cleanup(struct btrfs_root *root)
 
 	if (root->orphan_block_rsv || root->orphan_item_inserted) {
 		trans = btrfs_join_transaction(root, 1);
-		BUG_ON(IS_ERR(trans));
-		btrfs_end_transaction(trans, root);
+		if (!IS_ERR(trans))
+			btrfs_end_transaction(trans, root);
 	}
 
 	if (nr_unlink)
 		printk(KERN_INFO "btrfs: unlinked %d orphans\n", nr_unlink);
 	if (nr_truncate)
 		printk(KERN_INFO "btrfs: truncated %d orphans\n", nr_truncate);
+
+out:
+	if (ret)
+		printk(KERN_CRIT "btrfs: could not do orphan cleanup %d\n", ret);
+	btrfs_free_path(path);
+	return ret;
 }
 
 /*
@@ -2635,10 +2662,10 @@ failed:
  * recovery code.  It remove a link in a directory with a given name, and
  * also drops the back refs in the inode to the directory
  */
-int btrfs_unlink_inode(struct btrfs_trans_handle *trans,
-		       struct btrfs_root *root,
-		       struct inode *dir, struct inode *inode,
-		       const char *name, int name_len)
+static int __btrfs_unlink_inode(struct btrfs_trans_handle *trans,
+				struct btrfs_root *root,
+				struct inode *dir, struct inode *inode,
+				const char *name, int name_len)
 {
 	struct btrfs_path *path;
 	int ret = 0;
@@ -2710,12 +2737,25 @@ err:
 	btrfs_i_size_write(dir, dir->i_size - name_len * 2);
 	inode->i_ctime = dir->i_mtime = dir->i_ctime = CURRENT_TIME;
 	btrfs_update_inode(trans, root, dir);
-	btrfs_drop_nlink(inode);
-	ret = btrfs_update_inode(trans, root, inode);
 out:
 	return ret;
 }
 
+int btrfs_unlink_inode(struct btrfs_trans_handle *trans,
+		       struct btrfs_root *root,
+		       struct inode *dir, struct inode *inode,
+		       const char *name, int name_len)
+{
+	int ret;
+	ret = __btrfs_unlink_inode(trans, root, dir, inode, name, name_len);
+	if (!ret) {
+		btrfs_drop_nlink(inode);
+		ret = btrfs_update_inode(trans, root, inode);
+	}
+	return ret;
+}
+		
+
 /* helper to check if there is any shared block in the path */
 static int check_path_shared(struct btrfs_root *root,
 			     struct btrfs_path *path)
@@ -3537,7 +3577,13 @@ out:
 	return ret;
 }
 
-int btrfs_cont_expand(struct inode *inode, loff_t size)
+/*
+ * This function puts in dummy file extents for the area we're creating a hole
+ * for.  So if we are truncating this file to a larger size we need to insert
+ * these file extents so that btrfs_get_extent will return a EXTENT_MAP_HOLE for
+ * the range between oldsize and size
+ */
+int btrfs_cont_expand(struct inode *inode, loff_t oldsize, loff_t size)
 {
 	struct btrfs_trans_handle *trans;
 	struct btrfs_root *root = BTRFS_I(inode)->root;
@@ -3545,7 +3591,7 @@ int btrfs_cont_expand(struct inode *inode, loff_t size)
 	struct extent_map *em = NULL;
 	struct extent_state *cached_state = NULL;
 	u64 mask = root->sectorsize - 1;
-	u64 hole_start = (inode->i_size + mask) & ~mask;
+	u64 hole_start = (oldsize + mask) & ~mask;
 	u64 block_end = (size + mask) & ~mask;
 	u64 last_byte;
 	u64 cur_offset;
@@ -3590,13 +3636,15 @@ int btrfs_cont_expand(struct inode *inode, loff_t size)
 			err = btrfs_drop_extents(trans, inode, cur_offset,
 						 cur_offset + hole_size,
 						 &hint_byte, 1);
-			BUG_ON(err);
+			if (err)
+				break;
 
 			err = btrfs_insert_file_extent(trans, root,
 					inode->i_ino, cur_offset, 0,
 					0, hole_size, 0, hole_size,
 					0, 0, 0);
-			BUG_ON(err);
+			if (err)
+				break;
 
 			btrfs_drop_extent_cache(inode, hole_start,
 					last_byte - 1, 0);
@@ -3616,81 +3664,41 @@ int btrfs_cont_expand(struct inode *inode, loff_t size)
 	return err;
 }
 
-static int btrfs_setattr_size(struct inode *inode, struct iattr *attr)
+static int btrfs_setsize(struct inode *inode, loff_t newsize)
 {
-	struct btrfs_root *root = BTRFS_I(inode)->root;
-	struct btrfs_trans_handle *trans;
-	unsigned long nr;
+	loff_t oldsize = i_size_read(inode);
 	int ret;
 
-	if (attr->ia_size == inode->i_size)
+	if (newsize == oldsize)
 		return 0;
 
-	if (attr->ia_size > inode->i_size) {
-		unsigned long limit;
-		limit = current->signal->rlim[RLIMIT_FSIZE].rlim_cur;
-		if (attr->ia_size > inode->i_sb->s_maxbytes)
-			return -EFBIG;
-		if (limit != RLIM_INFINITY && attr->ia_size > limit) {
-			send_sig(SIGXFSZ, current, 0);
-			return -EFBIG;
-		}
-	}
-
-	trans = btrfs_start_transaction(root, 5);
-	if (IS_ERR(trans))
-		return PTR_ERR(trans);
-
-	btrfs_set_trans_block_group(trans, inode);
-
-	ret = btrfs_orphan_add(trans, inode);
-	BUG_ON(ret);
-
-	nr = trans->blocks_used;
-	btrfs_end_transaction(trans, root);
-	btrfs_btree_balance_dirty(root, nr);
-
-	if (attr->ia_size > inode->i_size) {
-		ret = btrfs_cont_expand(inode, attr->ia_size);
+	if (newsize > oldsize) {
+		i_size_write(inode, newsize);
+		btrfs_ordered_update_i_size(inode, i_size_read(inode), NULL);
+		truncate_pagecache(inode, oldsize, newsize);
+		ret = btrfs_cont_expand(inode, oldsize, newsize);
 		if (ret) {
-			btrfs_truncate(inode);
+			btrfs_setsize(inode, oldsize);
 			return ret;
 		}
 
-		i_size_write(inode, attr->ia_size);
-		btrfs_ordered_update_i_size(inode, inode->i_size, NULL);
+		mark_inode_dirty(inode);
+	} else {
 
-		trans = btrfs_start_transaction(root, 0);
-		BUG_ON(IS_ERR(trans));
-		btrfs_set_trans_block_group(trans, inode);
-		trans->block_rsv = root->orphan_block_rsv;
-		BUG_ON(!trans->block_rsv);
+		/*
+		 * We're truncating a file that used to have good data down to
+		 * zero. Make sure it gets into the ordered flush list so that
+		 * any new writes get down to disk quickly.
+		 */
+		if (newsize == 0)
+			BTRFS_I(inode)->ordered_data_close = 1;
 
-		ret = btrfs_update_inode(trans, root, inode);
-		BUG_ON(ret);
-		if (inode->i_nlink > 0) {
-			ret = btrfs_orphan_del(trans, inode);
-			BUG_ON(ret);
-		}
-		nr = trans->blocks_used;
-		btrfs_end_transaction(trans, root);
-		btrfs_btree_balance_dirty(root, nr);
-		return 0;
+		/* we don't support swapfiles, so vmtruncate shouldn't fail */
+		truncate_setsize(inode, newsize);
+		ret = btrfs_truncate(inode);
 	}
 
-	/*
-	 * We're truncating a file that used to have good data down to
-	 * zero. Make sure it gets into the ordered flush list so that
-	 * any new writes get down to disk quickly.
-	 */
-	if (attr->ia_size == 0)
-		BTRFS_I(inode)->ordered_data_close = 1;
-
-	/* we don't support swapfiles, so vmtruncate shouldn't fail */
-	ret = vmtruncate(inode, attr->ia_size);
-	BUG_ON(ret);
-
-	return 0;
+	return ret;
 }
 
 static int btrfs_setattr(struct dentry *dentry, struct iattr *attr)
@@ -3707,7 +3715,7 @@ static int btrfs_setattr(struct dentry *dentry, struct iattr *attr)
 		return err;
 
 	if (S_ISREG(inode->i_mode) && (attr->ia_valid & ATTR_SIZE)) {
-		err = btrfs_setattr_size(inode, attr);
+		err = btrfs_setsize(inode, attr->ia_size);
 		if (err)
 			return err;
 	}
@@ -3730,6 +3738,8 @@ void btrfs_evict_inode(struct inode *inode)
 	unsigned long nr;
 	int ret;
 
+	trace_btrfs_inode_evict(inode);
+
 	truncate_inode_pages(&inode->i_data, 0);
 	if (inode->i_nlink && (btrfs_root_refs(&root->root_item) != 0 ||
 			       root == root->fs_info->tree_root))
@@ -4072,7 +4082,6 @@ struct inode *btrfs_iget(struct super_block *s, struct btrfs_key *location,
 		BTRFS_I(inode)->root = root;
 		memcpy(&BTRFS_I(inode)->location, location, sizeof(*location));
 		btrfs_read_locked_inode(inode);
-
 		inode_tree_add(inode);
 		unlock_new_inode(inode);
 		if (new)
@@ -4147,8 +4156,10 @@ struct inode *btrfs_lookup_dentry(struct inode *dir, struct dentry *dentry)
 	if (!IS_ERR(inode) && root != sub_root) {
 		down_read(&root->fs_info->cleanup_work_sem);
 		if (!(inode->i_sb->s_flags & MS_RDONLY))
-			btrfs_orphan_cleanup(sub_root);
+			ret = btrfs_orphan_cleanup(sub_root);
 		up_read(&root->fs_info->cleanup_work_sem);
+		if (ret)
+			inode = ERR_PTR(ret);
 	}
 
 	return inode;
@@ -4282,6 +4293,9 @@ static int btrfs_real_readdir(struct file *filp, void *dirent,
 		while (di_cur < di_total) {
 			struct btrfs_key location;
 
+			if (verify_dir_item(root, leaf, di))
+				break;
+
 			name_len = btrfs_dir_name_len(leaf, di);
 			if (name_len <= sizeof(tmp_name)) {
 				name_ptr = tmp_name;
@@ -4517,6 +4531,8 @@ static struct inode *btrfs_new_inode(struct btrfs_trans_handle *trans,
 		return ERR_PTR(-ENOMEM);
 
 	if (dir) {
+		trace_btrfs_inode_request(dir);
+
 		ret = btrfs_set_inode_index(dir, index);
 		if (ret) {
 			iput(inode);
@@ -4585,12 +4601,16 @@ static struct inode *btrfs_new_inode(struct btrfs_trans_handle *trans,
 	if ((mode & S_IFREG)) {
 		if (btrfs_test_opt(root, NODATASUM))
 			BTRFS_I(inode)->flags |= BTRFS_INODE_NODATASUM;
-		if (btrfs_test_opt(root, NODATACOW))
+		if (btrfs_test_opt(root, NODATACOW) ||
+		    (BTRFS_I(dir)->flags & BTRFS_INODE_NODATACOW))
 			BTRFS_I(inode)->flags |= BTRFS_INODE_NODATACOW;
 	}
 
 	insert_inode_hash(inode);
 	inode_tree_add(inode);
+
+	trace_btrfs_inode_new(inode);
+
 	return inode;
 fail:
 	if (dir)
@@ -4809,7 +4829,10 @@ static int btrfs_link(struct dentry *old_dentry, struct inode *dir,
 
 	/* do not allow sys_link's with other subvols of the same device */
 	if (root->objectid != BTRFS_I(inode)->root->objectid)
-		return -EPERM;
+		return -EXDEV;
+
+	if (inode->i_nlink == ~0U)
+		return -EMLINK;
 
 	btrfs_inc_nlink(inode);
 	inode->i_ctime = CURRENT_TIME;
@@ -5265,6 +5288,9 @@ insert:
 	}
 	write_unlock(&em_tree->lock);
 out:
+
+	trace_btrfs_get_extent(root, em);
+
 	if (path)
 		btrfs_free_path(path);
 	if (trans) {
@@ -5748,6 +5774,10 @@ static void btrfs_endio_direct_read(struct bio *bio, int err)
 
 	kfree(dip->csums);
 	kfree(dip);
+
+	/* If we had a csum failure make sure to clear the uptodate flag */
+	if (err)
+		clear_bit(BIO_UPTODATE, &bio->bi_flags);
 	dio_end_io(bio, err);
 }
 
@@ -5849,6 +5879,10 @@ out_done:
 
 	kfree(dip->csums);
 	kfree(dip);
+
+	/* If we had an error make sure to clear the uptodate flag */
+	if (err)
+		clear_bit(BIO_UPTODATE, &bio->bi_flags);
 	dio_end_io(bio, err);
 }
 
@@ -5922,9 +5956,12 @@ static inline int __btrfs_submit_dio_bio(struct bio *bio, struct inode *inode,
 				   __btrfs_submit_bio_start_direct_io,
 				   __btrfs_submit_bio_done);
 		goto err;
-	} else if (!skip_sum)
-		btrfs_lookup_bio_sums_dio(root, inode, bio,
+	} else if (!skip_sum) {
+		ret = btrfs_lookup_bio_sums_dio(root, inode, bio,
 					  file_offset, csums);
+		if (ret)
+			goto err;
+	}
 
 	ret = btrfs_map_bio(root, rw, bio, 0, 1);
 err:
@@ -5948,6 +5985,7 @@ static int btrfs_submit_direct_hook(int rw, struct btrfs_dio_private *dip,
 	int nr_pages = 0;
 	u32 *csums = dip->csums;
 	int ret = 0;
+	int write = rw & REQ_WRITE;
 
 	bio = btrfs_dio_bio_alloc(orig_bio->bi_bdev, start_sector, GFP_NOFS);
 	if (!bio)
@@ -5984,7 +6022,8 @@ static int btrfs_submit_direct_hook(int rw, struct btrfs_dio_private *dip,
 				goto out_err;
 			}
 
-			if (!skip_sum)
+			/* Write's use the ordered csums */
+			if (!write && !skip_sum)
 				csums = csums + nr_pages;
 			start_sector += submit_len >> 9;
 			file_offset += submit_len;
@@ -6052,7 +6091,8 @@ static void btrfs_submit_direct(int rw, struct bio *bio, struct inode *inode,
 	}
 	dip->csums = NULL;
 
-	if (!skip_sum) {
+	/* Write's use the ordered csum stuff, so we don't need dip->csums */
+	if (!write && !skip_sum) {
 		dip->csums = kmalloc(sizeof(u32) * bio->bi_vcnt, GFP_NOFS);
 		if (!dip->csums) {
 			kfree(dip);
@@ -6474,28 +6514,42 @@ out:
 	return ret;
 }
 
-static void btrfs_truncate(struct inode *inode)
+static int btrfs_truncate(struct inode *inode)
 {
 	struct btrfs_root *root = BTRFS_I(inode)->root;
 	int ret;
+	int err = 0;
 	struct btrfs_trans_handle *trans;
 	unsigned long nr;
 	u64 mask = root->sectorsize - 1;
 
-	if (!S_ISREG(inode->i_mode)) {
-		WARN_ON(1);
-		return;
-	}
-
 	ret = btrfs_truncate_page(inode->i_mapping, inode->i_size);
 	if (ret)
-		return;
+		return ret;
 
 	btrfs_wait_ordered_range(inode, inode->i_size & (~mask), (u64)-1);
 	btrfs_ordered_update_i_size(inode, inode->i_size, NULL);
 
+	trans = btrfs_start_transaction(root, 5);
+	if (IS_ERR(trans))
+		return PTR_ERR(trans);
+
+	btrfs_set_trans_block_group(trans, inode);
+
+	ret = btrfs_orphan_add(trans, inode);
+	if (ret) {
+		btrfs_end_transaction(trans, root);
+		return ret;
+	}
+
+	nr = trans->blocks_used;
+	btrfs_end_transaction(trans, root);
+	btrfs_btree_balance_dirty(root, nr);
+
+	/* Now start a transaction for the truncate */
 	trans = btrfs_start_transaction(root, 0);
-	BUG_ON(IS_ERR(trans));
+	if (IS_ERR(trans))
+		return PTR_ERR(trans);
 	btrfs_set_trans_block_group(trans, inode);
 	trans->block_rsv = root->orphan_block_rsv;
 
@@ -6522,29 +6576,38 @@ static void btrfs_truncate(struct inode *inode)
 	while (1) {
 		if (!trans) {
 			trans = btrfs_start_transaction(root, 0);
-			BUG_ON(IS_ERR(trans));
+			if (IS_ERR(trans))
+				return PTR_ERR(trans);
 			btrfs_set_trans_block_group(trans, inode);
 			trans->block_rsv = root->orphan_block_rsv;
 		}
 
 		ret = btrfs_block_rsv_check(trans, root,
 					    root->orphan_block_rsv, 0, 5);
-		if (ret) {
-			BUG_ON(ret != -EAGAIN);
+		if (ret == -EAGAIN) {
 			ret = btrfs_commit_transaction(trans, root);
-			BUG_ON(ret);
+			if (ret)
+				return ret;
 			trans = NULL;
 			continue;
+		} else if (ret) {
+			err = ret;
+			break;
 		}
 
 		ret = btrfs_truncate_inode_items(trans, root, inode,
 						 inode->i_size,
 						 BTRFS_EXTENT_DATA_KEY);
-		if (ret != -EAGAIN)
+		if (ret != -EAGAIN) {
+			err = ret;
 			break;
+		}
 
 		ret = btrfs_update_inode(trans, root, inode);
-		BUG_ON(ret);
+		if (ret) {
+			err = ret;
+			break;
+		}
 
 		nr = trans->blocks_used;
 		btrfs_end_transaction(trans, root);
@@ -6554,16 +6617,27 @@ static void btrfs_truncate(struct inode *inode)
 
 	if (ret == 0 && inode->i_nlink > 0) {
 		ret = btrfs_orphan_del(trans, inode);
-		BUG_ON(ret);
+		if (ret)
+			err = ret;
+	} else if (ret && inode->i_nlink > 0) {
+		/*
+		 * Failed to do the truncate, remove us from the in memory
+		 * orphan list.
+		 */
+		ret = btrfs_orphan_del(NULL, inode);
 	}
 
 	ret = btrfs_update_inode(trans, root, inode);
-	BUG_ON(ret);
+	if (ret && !err)
+		err = ret;
 
 	nr = trans->blocks_used;
 	ret = btrfs_end_transaction_throttle(trans, root);
-	BUG_ON(ret);
+	if (ret && !err)
+		err = ret;
 	btrfs_btree_balance_dirty(root, nr);
+
+	return err;
 }
 
 /*
@@ -6630,9 +6704,8 @@ struct inode *btrfs_alloc_inode(struct super_block *sb)
 	ei->index_cnt = (u64)-1;
 	ei->last_unlink_trans = 0;
 
-	spin_lock_init(&ei->accounting_lock);
 	atomic_set(&ei->outstanding_extents, 0);
-	ei->reserved_extents = 0;
+	atomic_set(&ei->reserved_extents, 0);
 
 	ei->ordered_data_close = 0;
 	ei->orphan_meta_reserved = 0;
@@ -6668,7 +6741,7 @@ void btrfs_destroy_inode(struct inode *inode)
 	WARN_ON(!list_empty(&inode->i_dentry));
 	WARN_ON(inode->i_data.nrpages);
 	WARN_ON(atomic_read(&BTRFS_I(inode)->outstanding_extents));
-	WARN_ON(BTRFS_I(inode)->reserved_extents);
+	WARN_ON(atomic_read(&BTRFS_I(inode)->reserved_extents));
 
 	/*
 	 * This can happen where we create an inode, but somebody else also
@@ -6760,6 +6833,8 @@ void btrfs_destroy_cachep(void)
 		kmem_cache_destroy(btrfs_transaction_cachep);
 	if (btrfs_path_cachep)
 		kmem_cache_destroy(btrfs_path_cachep);
+	if (btrfs_free_space_cachep)
+		kmem_cache_destroy(btrfs_free_space_cachep);
 }
 
 int btrfs_init_cachep(void)
@@ -6788,6 +6863,12 @@ int btrfs_init_cachep(void)
 	if (!btrfs_path_cachep)
 		goto fail;
 
+	btrfs_free_space_cachep = kmem_cache_create("btrfs_free_space_cache",
+			sizeof(struct btrfs_free_space), 0,
+			SLAB_RECLAIM_ACCOUNT | SLAB_MEM_SPREAD, NULL);
+	if (!btrfs_free_space_cachep)
+		goto fail;
+
 	return 0;
 fail:
 	btrfs_destroy_cachep();
@@ -6806,6 +6887,26 @@ static int btrfs_getattr(struct vfsmount *mnt,
 	return 0;
 }
 
+/*
+ * If a file is moved, it will inherit the cow and compression flags of the new
+ * directory.
+ */
+static void fixup_inode_flags(struct inode *dir, struct inode *inode)
+{
+	struct btrfs_inode *b_dir = BTRFS_I(dir);
+	struct btrfs_inode *b_inode = BTRFS_I(inode);
+
+	if (b_dir->flags & BTRFS_INODE_NODATACOW)
+		b_inode->flags |= BTRFS_INODE_NODATACOW;
+	else
+		b_inode->flags &= ~BTRFS_INODE_NODATACOW;
+
+	if (b_dir->flags & BTRFS_INODE_COMPRESS)
+		b_inode->flags |= BTRFS_INODE_COMPRESS;
+	else
+		b_inode->flags &= ~BTRFS_INODE_COMPRESS;
+}
+
 static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry,
 			   struct inode *new_dir, struct dentry *new_dentry)
 {
@@ -6854,8 +6955,10 @@ static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry,
 	 * should cover the worst case number of items we'll modify.
 	 */
 	trans = btrfs_start_transaction(root, 20);
-	if (IS_ERR(trans))
-		return PTR_ERR(trans);
+	if (IS_ERR(trans)) {
+                ret = PTR_ERR(trans);
+                goto out_notrans;
+        }
 
 	btrfs_set_trans_block_group(trans, new_dir);
 
@@ -6908,11 +7011,12 @@ static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry,
 					old_dentry->d_name.name,
 					old_dentry->d_name.len);
 	} else {
-		btrfs_inc_nlink(old_dentry->d_inode);
-		ret = btrfs_unlink_inode(trans, root, old_dir,
-					 old_dentry->d_inode,
-					 old_dentry->d_name.name,
-					 old_dentry->d_name.len);
+		ret = __btrfs_unlink_inode(trans, root, old_dir,
+					old_dentry->d_inode,
+					old_dentry->d_name.name,
+					old_dentry->d_name.len);
+		if (!ret)
+			ret = btrfs_update_inode(trans, root, old_inode);
 	}
 	BUG_ON(ret);
 
@@ -6939,6 +7043,8 @@ static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry,
 		}
 	}
 
+	fixup_inode_flags(new_dir, old_inode);
+
 	ret = btrfs_add_link(trans, new_dir, old_inode,
 			     new_dentry->d_name.name,
 			     new_dentry->d_name.len, 0, index);
@@ -6952,7 +7058,7 @@ static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry,
 	}
 out_fail:
 	btrfs_end_transaction_throttle(trans, root);
-
+out_notrans:
 	if (old_inode->i_ino == BTRFS_FIRST_FREE_OBJECTID)
 		up_read(&root->fs_info->subvol_sem);
 
@@ -7355,7 +7461,6 @@ static const struct address_space_operations btrfs_symlink_aops = {
 };
 
 static const struct inode_operations btrfs_file_inode_operations = {
-	.truncate	= btrfs_truncate,
 	.getattr	= btrfs_getattr,
 	.setattr	= btrfs_setattr,
 	.setxattr	= btrfs_setxattr,
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index d1bace3df9b6..cfc264fefdb0 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -40,6 +40,7 @@
 #include <linux/xattr.h>
 #include <linux/vmalloc.h>
 #include <linux/slab.h>
+#include <linux/blkdev.h>
 #include "compat.h"
 #include "ctree.h"
 #include "disk-io.h"
@@ -138,6 +139,24 @@ static int btrfs_ioctl_getflags(struct file *file, void __user *arg)
 	return 0;
 }
 
+static int check_flags(unsigned int flags)
+{
+	if (flags & ~(FS_IMMUTABLE_FL | FS_APPEND_FL | \
+		      FS_NOATIME_FL | FS_NODUMP_FL | \
+		      FS_SYNC_FL | FS_DIRSYNC_FL | \
+		      FS_NOCOMP_FL | FS_COMPR_FL | \
+		      FS_NOCOW_FL | FS_COW_FL))
+		return -EOPNOTSUPP;
+
+	if ((flags & FS_NOCOMP_FL) && (flags & FS_COMPR_FL))
+		return -EINVAL;
+
+	if ((flags & FS_NOCOW_FL) && (flags & FS_COW_FL))
+		return -EINVAL;
+
+	return 0;
+}
+
 static int btrfs_ioctl_setflags(struct file *file, void __user *arg)
 {
 	struct inode *inode = file->f_path.dentry->d_inode;
@@ -153,10 +172,9 @@ static int btrfs_ioctl_setflags(struct file *file, void __user *arg)
 	if (copy_from_user(&flags, arg, sizeof(flags)))
 		return -EFAULT;
 
-	if (flags & ~(FS_IMMUTABLE_FL | FS_APPEND_FL | \
-		      FS_NOATIME_FL | FS_NODUMP_FL | \
-		      FS_SYNC_FL | FS_DIRSYNC_FL))
-		return -EOPNOTSUPP;
+	ret = check_flags(flags);
+	if (ret)
+		return ret;
 
 	if (!inode_owner_or_capable(inode))
 		return -EACCES;
@@ -201,6 +219,22 @@ static int btrfs_ioctl_setflags(struct file *file, void __user *arg)
 	else
 		ip->flags &= ~BTRFS_INODE_DIRSYNC;
 
+	/*
+	 * The COMPRESS flag can only be changed by users, while the NOCOMPRESS
+	 * flag may be changed automatically if compression code won't make
+	 * things smaller.
+	 */
+	if (flags & FS_NOCOMP_FL) {
+		ip->flags &= ~BTRFS_INODE_COMPRESS;
+		ip->flags |= BTRFS_INODE_NOCOMPRESS;
+	} else if (flags & FS_COMPR_FL) {
+		ip->flags |= BTRFS_INODE_COMPRESS;
+		ip->flags &= ~BTRFS_INODE_NOCOMPRESS;
+	}
+	if (flags & FS_NOCOW_FL)
+		ip->flags |= BTRFS_INODE_NODATACOW;
+	else if (flags & FS_COW_FL)
+		ip->flags &= ~BTRFS_INODE_NODATACOW;
 
 	trans = btrfs_join_transaction(root, 1);
 	BUG_ON(IS_ERR(trans));
@@ -213,9 +247,11 @@ static int btrfs_ioctl_setflags(struct file *file, void __user *arg)
 	btrfs_end_transaction(trans, root);
 
 	mnt_drop_write(file->f_path.mnt);
+
+	ret = 0;
  out_unlock:
 	mutex_unlock(&inode->i_mutex);
-	return 0;
+	return ret;
 }
 
 static int btrfs_ioctl_getversion(struct file *file, int __user *arg)
@@ -225,6 +261,49 @@ static int btrfs_ioctl_getversion(struct file *file, int __user *arg)
 	return put_user(inode->i_generation, arg);
 }
 
+static noinline int btrfs_ioctl_fitrim(struct file *file, void __user *arg)
+{
+	struct btrfs_root *root = fdentry(file)->d_sb->s_fs_info;
+	struct btrfs_fs_info *fs_info = root->fs_info;
+	struct btrfs_device *device;
+	struct request_queue *q;
+	struct fstrim_range range;
+	u64 minlen = ULLONG_MAX;
+	u64 num_devices = 0;
+	int ret;
+
+	if (!capable(CAP_SYS_ADMIN))
+		return -EPERM;
+
+	mutex_lock(&fs_info->fs_devices->device_list_mutex);
+	list_for_each_entry(device, &fs_info->fs_devices->devices, dev_list) {
+		if (!device->bdev)
+			continue;
+		q = bdev_get_queue(device->bdev);
+		if (blk_queue_discard(q)) {
+			num_devices++;
+			minlen = min((u64)q->limits.discard_granularity,
+				     minlen);
+		}
+	}
+	mutex_unlock(&fs_info->fs_devices->device_list_mutex);
+	if (!num_devices)
+		return -EOPNOTSUPP;
+
+	if (copy_from_user(&range, arg, sizeof(range)))
+		return -EFAULT;
+
+	range.minlen = max(range.minlen, minlen);
+	ret = btrfs_trim_fs(root, &range);
+	if (ret < 0)
+		return ret;
+
+	if (copy_to_user(arg, &range, sizeof(range)))
+		return -EFAULT;
+
+	return 0;
+}
+
 static noinline int create_subvol(struct btrfs_root *root,
 				  struct dentry *dentry,
 				  char *name, int namelen,
@@ -294,6 +373,10 @@ static noinline int create_subvol(struct btrfs_root *root,
 	inode_item->nbytes = cpu_to_le64(root->leafsize);
 	inode_item->mode = cpu_to_le32(S_IFDIR | 0755);
 
+	root_item.flags = 0;
+	root_item.byte_limit = 0;
+	inode_item->flags = cpu_to_le64(BTRFS_INODE_ROOT_ITEM_INIT);
+
 	btrfs_set_root_bytenr(&root_item, leaf->start);
 	btrfs_set_root_generation(&root_item, trans->transid);
 	btrfs_set_root_level(&root_item, 0);
@@ -409,7 +492,9 @@ static int create_snapshot(struct btrfs_root *root, struct dentry *dentry,
 	if (ret)
 		goto fail;
 
-	btrfs_orphan_cleanup(pending_snapshot->snap);
+	ret = btrfs_orphan_cleanup(pending_snapshot->snap);
+	if (ret)
+		goto fail;
 
 	parent = dget_parent(dentry);
 	inode = btrfs_lookup_dentry(parent->d_inode, dentry);
@@ -2348,12 +2433,17 @@ static noinline long btrfs_ioctl_start_sync(struct file *file, void __user *argp
 	struct btrfs_root *root = BTRFS_I(file->f_dentry->d_inode)->root;
 	struct btrfs_trans_handle *trans;
 	u64 transid;
+	int ret;
 
 	trans = btrfs_start_transaction(root, 0);
 	if (IS_ERR(trans))
 		return PTR_ERR(trans);
 	transid = trans->transid;
-	btrfs_commit_transaction_async(trans, root, 0);
+	ret = btrfs_commit_transaction_async(trans, root, 0);
+	if (ret) {
+		btrfs_end_transaction(trans, root);
+		return ret;
+	}
 
 	if (argp)
 		if (copy_to_user(argp, &transid, sizeof(transid)))
@@ -2388,6 +2478,8 @@ long btrfs_ioctl(struct file *file, unsigned int
 		return btrfs_ioctl_setflags(file, argp);
 	case FS_IOC_GETVERSION:
 		return btrfs_ioctl_getversion(file, argp);
+	case FITRIM:
+		return btrfs_ioctl_fitrim(file, argp);
 	case BTRFS_IOC_SNAP_CREATE:
 		return btrfs_ioctl_snap_create(file, argp, 0);
 	case BTRFS_IOC_SNAP_CREATE_V2:
diff --git a/fs/btrfs/ordered-data.c b/fs/btrfs/ordered-data.c
index 083a55477375..a1c940425307 100644
--- a/fs/btrfs/ordered-data.c
+++ b/fs/btrfs/ordered-data.c
@@ -202,6 +202,8 @@ static int __btrfs_add_ordered_extent(struct inode *inode, u64 file_offset,
 	INIT_LIST_HEAD(&entry->list);
 	INIT_LIST_HEAD(&entry->root_extent_list);
 
+	trace_btrfs_ordered_extent_add(inode, entry);
+
 	spin_lock(&tree->lock);
 	node = tree_insert(&tree->tree, file_offset,
 			   &entry->rb_node);
@@ -387,6 +389,8 @@ int btrfs_put_ordered_extent(struct btrfs_ordered_extent *entry)
 	struct list_head *cur;
 	struct btrfs_ordered_sum *sum;
 
+	trace_btrfs_ordered_extent_put(entry->inode, entry);
+
 	if (atomic_dec_and_test(&entry->refs)) {
 		while (!list_empty(&entry->list)) {
 			cur = entry->list.next;
@@ -420,6 +424,8 @@ static int __btrfs_remove_ordered_extent(struct inode *inode,
 	spin_lock(&root->fs_info->ordered_extent_lock);
 	list_del_init(&entry->root_extent_list);
 
+	trace_btrfs_ordered_extent_remove(inode, entry);
+
 	/*
 	 * we have no more ordered extents for this inode and
 	 * no dirty pages.  We can safely remove it from the
@@ -585,6 +591,8 @@ void btrfs_start_ordered_extent(struct inode *inode,
 	u64 start = entry->file_offset;
 	u64 end = start + entry->len - 1;
 
+	trace_btrfs_ordered_extent_start(inode, entry);
+
 	/*
 	 * pages in the range can be dirty, clean or writeback.  We
 	 * start IO on any dirty ones so the wait doesn't stall waiting
diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c
index 31ade5802ae8..199a80134312 100644
--- a/fs/btrfs/relocation.c
+++ b/fs/btrfs/relocation.c
@@ -1724,6 +1724,7 @@ again:
 
 			eb = read_tree_block(dest, old_bytenr, blocksize,
 					     old_ptr_gen);
+			BUG_ON(!eb);
 			btrfs_tree_lock(eb);
 			if (cow) {
 				ret = btrfs_cow_block(trans, dest, eb, parent,
@@ -2345,7 +2346,7 @@ struct btrfs_root *select_one_root(struct btrfs_trans_handle *trans,
 		root = next->root;
 		BUG_ON(!root);
 
-		/* no other choice for non-refernce counted tree */
+		/* no other choice for non-references counted tree */
 		if (!root->ref_cows)
 			return root;
 
@@ -2513,6 +2514,10 @@ static int do_relocation(struct btrfs_trans_handle *trans,
 		blocksize = btrfs_level_size(root, node->level);
 		generation = btrfs_node_ptr_generation(upper->eb, slot);
 		eb = read_tree_block(root, bytenr, blocksize, generation);
+		if (!eb) {
+			err = -EIO;
+			goto next;
+		}
 		btrfs_tree_lock(eb);
 		btrfs_set_lock_blocking(eb);
 
@@ -2670,6 +2675,7 @@ static int get_tree_block_key(struct reloc_control *rc,
 	BUG_ON(block->key_ready);
 	eb = read_tree_block(rc->extent_root, block->bytenr,
 			     block->key.objectid, block->key.offset);
+	BUG_ON(!eb);
 	WARN_ON(btrfs_header_level(eb) != block->level);
 	if (block->level == 0)
 		btrfs_item_key_to_cpu(eb, &block->key, 0);
@@ -4209,7 +4215,7 @@ out:
 		if (IS_ERR(fs_root))
 			err = PTR_ERR(fs_root);
 		else
-			btrfs_orphan_cleanup(fs_root);
+			err = btrfs_orphan_cleanup(fs_root);
 	}
 	return err;
 }
diff --git a/fs/btrfs/root-tree.c b/fs/btrfs/root-tree.c
index 6a1086e83ffc..6928bff62daa 100644
--- a/fs/btrfs/root-tree.c
+++ b/fs/btrfs/root-tree.c
@@ -88,7 +88,8 @@ int btrfs_find_last_root(struct btrfs_root *root, u64 objectid,
 	search_key.offset = (u64)-1;
 
 	path = btrfs_alloc_path();
-	BUG_ON(!path);
+	if (!path)
+		return -ENOMEM;
 	ret = btrfs_search_slot(NULL, root, &search_key, path, 0, 0);
 	if (ret < 0)
 		goto out;
@@ -332,7 +333,8 @@ int btrfs_del_root(struct btrfs_trans_handle *trans, struct btrfs_root *root,
 	struct extent_buffer *leaf;
 
 	path = btrfs_alloc_path();
-	BUG_ON(!path);
+	if (!path)
+		return -ENOMEM;
 	ret = btrfs_search_slot(trans, root, key, path, -1, 1);
 	if (ret < 0)
 		goto out;
@@ -471,3 +473,21 @@ again:
 	btrfs_free_path(path);
 	return 0;
 }
+
+/*
+ * Old btrfs forgets to init root_item->flags and root_item->byte_limit
+ * for subvolumes. To work around this problem, we steal a bit from
+ * root_item->inode_item->flags, and use it to indicate if those fields
+ * have been properly initialized.
+ */
+void btrfs_check_and_init_root_item(struct btrfs_root_item *root_item)
+{
+	u64 inode_flags = le64_to_cpu(root_item->inode.flags);
+
+	if (!(inode_flags & BTRFS_INODE_ROOT_ITEM_INIT)) {
+		inode_flags |= BTRFS_INODE_ROOT_ITEM_INIT;
+		root_item->inode.flags = cpu_to_le64(inode_flags);
+		root_item->flags = 0;
+		root_item->byte_limit = 0;
+	}
+}
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index d39a9895d932..58e7de9cc90c 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -52,6 +52,9 @@
 #include "export.h"
 #include "compression.h"
 
+#define CREATE_TRACE_POINTS
+#include <trace/events/btrfs.h>
+
 static const struct super_operations btrfs_super_ops;
 
 static const char *btrfs_decode_error(struct btrfs_fs_info *fs_info, int errno,
@@ -620,6 +623,8 @@ int btrfs_sync_fs(struct super_block *sb, int wait)
 	struct btrfs_root *root = btrfs_sb(sb);
 	int ret;
 
+	trace_btrfs_sync_fs(wait);
+
 	if (!wait) {
 		filemap_flush(root->fs_info->btree_inode->i_mapping);
 		return 0;
@@ -639,6 +644,7 @@ static int btrfs_show_options(struct seq_file *seq, struct vfsmount *vfs)
 {
 	struct btrfs_root *root = btrfs_sb(vfs->mnt_sb);
 	struct btrfs_fs_info *info = root->fs_info;
+	char *compress_type;
 
 	if (btrfs_test_opt(root, DEGRADED))
 		seq_puts(seq, ",degraded");
@@ -657,8 +663,16 @@ static int btrfs_show_options(struct seq_file *seq, struct vfsmount *vfs)
 	if (info->thread_pool_size !=  min_t(unsigned long,
 					     num_online_cpus() + 2, 8))
 		seq_printf(seq, ",thread_pool=%d", info->thread_pool_size);
-	if (btrfs_test_opt(root, COMPRESS))
-		seq_puts(seq, ",compress");
+	if (btrfs_test_opt(root, COMPRESS)) {
+		if (info->compress_type == BTRFS_COMPRESS_ZLIB)
+			compress_type = "zlib";
+		else
+			compress_type = "lzo";
+		if (btrfs_test_opt(root, FORCE_COMPRESS))
+			seq_printf(seq, ",compress-force=%s", compress_type);
+		else
+			seq_printf(seq, ",compress=%s", compress_type);
+	}
 	if (btrfs_test_opt(root, NOSSD))
 		seq_puts(seq, ",nossd");
 	if (btrfs_test_opt(root, SSD_SPREAD))
@@ -673,6 +687,12 @@ static int btrfs_show_options(struct seq_file *seq, struct vfsmount *vfs)
 		seq_puts(seq, ",discard");
 	if (!(root->fs_info->sb->s_flags & MS_POSIXACL))
 		seq_puts(seq, ",noacl");
+	if (btrfs_test_opt(root, SPACE_CACHE))
+		seq_puts(seq, ",space_cache");
+	if (btrfs_test_opt(root, CLEAR_CACHE))
+		seq_puts(seq, ",clear_cache");
+	if (btrfs_test_opt(root, USER_SUBVOL_RM_ALLOWED))
+		seq_puts(seq, ",user_subvol_rm_allowed");
 	return 0;
 }
 
diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index 3d73c8d93bbb..5b158da7e0bb 100644
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -57,7 +57,8 @@ static noinline int join_transaction(struct btrfs_root *root)
 	if (!cur_trans) {
 		cur_trans = kmem_cache_alloc(btrfs_transaction_cachep,
 					     GFP_NOFS);
-		BUG_ON(!cur_trans);
+		if (!cur_trans)
+			return -ENOMEM;
 		root->fs_info->generation++;
 		cur_trans->num_writers = 1;
 		cur_trans->num_joined = 0;
@@ -195,7 +196,12 @@ again:
 		wait_current_trans(root);
 
 	ret = join_transaction(root);
-	BUG_ON(ret);
+	if (ret < 0) {
+		kmem_cache_free(btrfs_trans_handle_cachep, h);
+		if (type != TRANS_JOIN_NOLOCK)
+			mutex_unlock(&root->fs_info->trans_mutex);
+		return ERR_PTR(ret);
+	}
 
 	cur_trans = root->fs_info->running_transaction;
 	cur_trans->use_count++;
@@ -970,6 +976,7 @@ static noinline int create_pending_snapshot(struct btrfs_trans_handle *trans,
 	record_root_in_trans(trans, root);
 	btrfs_set_root_last_snapshot(&root->root_item, trans->transid);
 	memcpy(new_root_item, &root->root_item, sizeof(*new_root_item));
+	btrfs_check_and_init_root_item(new_root_item);
 
 	root_flags = btrfs_root_flags(new_root_item);
 	if (pending->readonly)
@@ -1156,7 +1163,8 @@ int btrfs_commit_transaction_async(struct btrfs_trans_handle *trans,
 	struct btrfs_transaction *cur_trans;
 
 	ac = kmalloc(sizeof(*ac), GFP_NOFS);
-	BUG_ON(!ac);
+	if (!ac)
+		return -ENOMEM;
 
 	INIT_DELAYED_WORK(&ac->work, do_async_commit);
 	ac->root = root;
@@ -1389,6 +1397,8 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
 	put_transaction(cur_trans);
 	put_transaction(cur_trans);
 
+	trace_btrfs_transaction_commit(root);
+
 	mutex_unlock(&root->fs_info->trans_mutex);
 
 	if (current->journal_info == trans)
diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index a4bbb854dfd2..c50271ad3157 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -799,12 +799,12 @@ static noinline int add_inode_ref(struct btrfs_trans_handle *trans,
 	struct inode *dir;
 	int ret;
 	struct btrfs_inode_ref *ref;
-	struct btrfs_dir_item *di;
 	struct inode *inode;
 	char *name;
 	int namelen;
 	unsigned long ref_ptr;
 	unsigned long ref_end;
+	int search_done = 0;
 
 	/*
 	 * it is possible that we didn't log all the parent directories
@@ -845,7 +845,10 @@ again:
 	 * existing back reference, and we don't want to create
 	 * dangling pointers in the directory.
 	 */
-conflict_again:
+
+	if (search_done)
+		goto insert;
+
 	ret = btrfs_search_slot(NULL, root, key, path, 0, 0);
 	if (ret == 0) {
 		char *victim_name;
@@ -886,37 +889,21 @@ conflict_again:
 				ret = btrfs_unlink_inode(trans, root, dir,
 							 inode, victim_name,
 							 victim_name_len);
-				kfree(victim_name);
-				btrfs_release_path(root, path);
-				goto conflict_again;
 			}
 			kfree(victim_name);
 			ptr = (unsigned long)(victim_ref + 1) + victim_name_len;
 		}
 		BUG_ON(ret);
-	}
-	btrfs_release_path(root, path);
-
-	/* look for a conflicting sequence number */
-	di = btrfs_lookup_dir_index_item(trans, root, path, dir->i_ino,
-					 btrfs_inode_ref_index(eb, ref),
-					 name, namelen, 0);
-	if (di && !IS_ERR(di)) {
-		ret = drop_one_dir_item(trans, root, path, dir, di);
-		BUG_ON(ret);
-	}
-	btrfs_release_path(root, path);
 
-
-	/* look for a conflicting name */
-	di = btrfs_lookup_dir_item(trans, root, path, dir->i_ino,
-				   name, namelen, 0);
-	if (di && !IS_ERR(di)) {
-		ret = drop_one_dir_item(trans, root, path, dir, di);
-		BUG_ON(ret);
+		/*
+		 * NOTE: we have searched root tree and checked the
+		 * coresponding ref, it does not need to check again.
+		 */
+		search_done = 1;
 	}
 	btrfs_release_path(root, path);
 
+insert:
 	/* insert our name */
 	ret = btrfs_add_link(trans, dir, inode, name, namelen, 0,
 			     btrfs_inode_ref_index(eb, ref));
@@ -1286,6 +1273,8 @@ static noinline int replay_one_dir_item(struct btrfs_trans_handle *trans,
 	ptr_end = ptr + item_size;
 	while (ptr < ptr_end) {
 		di = (struct btrfs_dir_item *)ptr;
+		if (verify_dir_item(root, eb, di))
+			return -EIO;
 		name_len = btrfs_dir_name_len(eb, di);
 		ret = replay_one_name(trans, root, path, eb, di, key);
 		BUG_ON(ret);
@@ -1412,6 +1401,11 @@ again:
 	ptr_end = ptr + item_size;
 	while (ptr < ptr_end) {
 		di = (struct btrfs_dir_item *)ptr;
+		if (verify_dir_item(root, eb, di)) {
+			ret = -EIO;
+			goto out;
+		}
+
 		name_len = btrfs_dir_name_len(eb, di);
 		name = kmalloc(name_len, GFP_NOFS);
 		if (!name) {
@@ -1821,7 +1815,8 @@ static int walk_log_tree(struct btrfs_trans_handle *trans,
 	int orig_level;
 
 	path = btrfs_alloc_path();
-	BUG_ON(!path);
+	if (!path)
+		return -ENOMEM;
 
 	level = btrfs_header_level(log->node);
 	orig_level = level;
@@ -3107,9 +3102,11 @@ int btrfs_recover_log_trees(struct btrfs_root *log_root_tree)
 		.stage = 0,
 	};
 
-	fs_info->log_root_recovering = 1;
 	path = btrfs_alloc_path();
-	BUG_ON(!path);
+	if (!path)
+		return -ENOMEM;
+
+	fs_info->log_root_recovering = 1;
 
 	trans = btrfs_start_transaction(fs_info->tree_root, 0);
 	BUG_ON(IS_ERR(trans));
@@ -3117,7 +3114,8 @@ int btrfs_recover_log_trees(struct btrfs_root *log_root_tree)
 	wc.trans = trans;
 	wc.pin = 1;
 
-	walk_log_tree(trans, log_root_tree, &wc);
+	ret = walk_log_tree(trans, log_root_tree, &wc);
+	BUG_ON(ret);
 
 again:
 	key.objectid = BTRFS_TREE_LOG_OBJECTID;
@@ -3141,8 +3139,7 @@ again:
 
 		log = btrfs_read_fs_root_no_radix(log_root_tree,
 						  &found_key);
-		BUG_ON(!log);
-
+		BUG_ON(IS_ERR(log));
 
 		tmp_key.objectid = found_key.offset;
 		tmp_key.type = BTRFS_ROOT_ITEM_KEY;
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 9d554e8e6583..309a57b9fc85 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -33,17 +33,6 @@
 #include "volumes.h"
 #include "async-thread.h"
 
-struct map_lookup {
-	u64 type;
-	int io_align;
-	int io_width;
-	int stripe_len;
-	int sector_size;
-	int num_stripes;
-	int sub_stripes;
-	struct btrfs_bio_stripe stripes[];
-};
-
 static int init_first_rw_device(struct btrfs_trans_handle *trans,
 				struct btrfs_root *root,
 				struct btrfs_device *device);
@@ -1879,6 +1868,8 @@ static int btrfs_relocate_chunk(struct btrfs_root *root,
 
 	BUG_ON(ret);
 
+	trace_btrfs_chunk_free(root, map, chunk_offset, em->len);
+
 	if (map->type & BTRFS_BLOCK_GROUP_SYSTEM) {
 		ret = btrfs_del_sys_chunk(root, chunk_objectid, chunk_offset);
 		BUG_ON(ret);
@@ -2606,6 +2597,8 @@ static int __btrfs_alloc_chunk(struct btrfs_trans_handle *trans,
 	*num_bytes = chunk_bytes_by_type(type, calc_size,
 					 map->num_stripes, sub_stripes);
 
+	trace_btrfs_chunk_alloc(info->chunk_root, map, start, *num_bytes);
+
 	em = alloc_extent_map(GFP_NOFS);
 	if (!em) {
 		ret = -ENOMEM;
@@ -2714,6 +2707,7 @@ static int __finish_chunk_alloc(struct btrfs_trans_handle *trans,
 					     item_size);
 		BUG_ON(ret);
 	}
+
 	kfree(chunk);
 	return 0;
 }
@@ -2918,7 +2912,10 @@ static int __btrfs_map_block(struct btrfs_mapping_tree *map_tree, int rw,
 	struct extent_map_tree *em_tree = &map_tree->map_tree;
 	u64 offset;
 	u64 stripe_offset;
+	u64 stripe_end_offset;
 	u64 stripe_nr;
+	u64 stripe_nr_orig;
+	u64 stripe_nr_end;
 	int stripes_allocated = 8;
 	int stripes_required = 1;
 	int stripe_index;
@@ -2927,7 +2924,7 @@ static int __btrfs_map_block(struct btrfs_mapping_tree *map_tree, int rw,
 	int max_errors = 0;
 	struct btrfs_multi_bio *multi = NULL;
 
-	if (multi_ret && !(rw & REQ_WRITE))
+	if (multi_ret && !(rw & (REQ_WRITE | REQ_DISCARD)))
 		stripes_allocated = 1;
 again:
 	if (multi_ret) {
@@ -2968,7 +2965,15 @@ again:
 			max_errors = 1;
 		}
 	}
-	if (multi_ret && (rw & REQ_WRITE) &&
+	if (rw & REQ_DISCARD) {
+		if (map->type & (BTRFS_BLOCK_GROUP_RAID0 |
+				 BTRFS_BLOCK_GROUP_RAID1 |
+				 BTRFS_BLOCK_GROUP_DUP |
+				 BTRFS_BLOCK_GROUP_RAID10)) {
+			stripes_required = map->num_stripes;
+		}
+	}
+	if (multi_ret && (rw & (REQ_WRITE | REQ_DISCARD)) &&
 	    stripes_allocated < stripes_required) {
 		stripes_allocated = map->num_stripes;
 		free_extent_map(em);
@@ -2988,12 +2993,15 @@ again:
 	/* stripe_offset is the offset of this block in its stripe*/
 	stripe_offset = offset - stripe_offset;
 
-	if (map->type & (BTRFS_BLOCK_GROUP_RAID0 | BTRFS_BLOCK_GROUP_RAID1 |
-			 BTRFS_BLOCK_GROUP_RAID10 |
-			 BTRFS_BLOCK_GROUP_DUP)) {
+	if (rw & REQ_DISCARD)
+		*length = min_t(u64, em->len - offset, *length);
+	else if (map->type & (BTRFS_BLOCK_GROUP_RAID0 |
+			      BTRFS_BLOCK_GROUP_RAID1 |
+			      BTRFS_BLOCK_GROUP_RAID10 |
+			      BTRFS_BLOCK_GROUP_DUP)) {
 		/* we limit the length of each bio to what fits in a stripe */
 		*length = min_t(u64, em->len - offset,
-			      map->stripe_len - stripe_offset);
+				map->stripe_len - stripe_offset);
 	} else {
 		*length = em->len - offset;
 	}
@@ -3003,8 +3011,19 @@ again:
 
 	num_stripes = 1;
 	stripe_index = 0;
-	if (map->type & BTRFS_BLOCK_GROUP_RAID1) {
-		if (rw & REQ_WRITE)
+	stripe_nr_orig = stripe_nr;
+	stripe_nr_end = (offset + *length + map->stripe_len - 1) &
+			(~(map->stripe_len - 1));
+	do_div(stripe_nr_end, map->stripe_len);
+	stripe_end_offset = stripe_nr_end * map->stripe_len -
+			    (offset + *length);
+	if (map->type & BTRFS_BLOCK_GROUP_RAID0) {
+		if (rw & REQ_DISCARD)
+			num_stripes = min_t(u64, map->num_stripes,
+					    stripe_nr_end - stripe_nr_orig);
+		stripe_index = do_div(stripe_nr, map->num_stripes);
+	} else if (map->type & BTRFS_BLOCK_GROUP_RAID1) {
+		if (rw & (REQ_WRITE | REQ_DISCARD))
 			num_stripes = map->num_stripes;
 		else if (mirror_num)
 			stripe_index = mirror_num - 1;
@@ -3015,7 +3034,7 @@ again:
 		}
 
 	} else if (map->type & BTRFS_BLOCK_GROUP_DUP) {
-		if (rw & REQ_WRITE)
+		if (rw & (REQ_WRITE | REQ_DISCARD))
 			num_stripes = map->num_stripes;
 		else if (mirror_num)
 			stripe_index = mirror_num - 1;
@@ -3028,6 +3047,10 @@ again:
 
 		if (rw & REQ_WRITE)
 			num_stripes = map->sub_stripes;
+		else if (rw & REQ_DISCARD)
+			num_stripes = min_t(u64, map->sub_stripes *
+					    (stripe_nr_end - stripe_nr_orig),
+					    map->num_stripes);
 		else if (mirror_num)
 			stripe_index += mirror_num - 1;
 		else {
@@ -3045,12 +3068,101 @@ again:
 	}
 	BUG_ON(stripe_index >= map->num_stripes);
 
-	for (i = 0; i < num_stripes; i++) {
-		multi->stripes[i].physical =
-			map->stripes[stripe_index].physical +
-			stripe_offset + stripe_nr * map->stripe_len;
-		multi->stripes[i].dev = map->stripes[stripe_index].dev;
-		stripe_index++;
+	if (rw & REQ_DISCARD) {
+		for (i = 0; i < num_stripes; i++) {
+			multi->stripes[i].physical =
+				map->stripes[stripe_index].physical +
+				stripe_offset + stripe_nr * map->stripe_len;
+			multi->stripes[i].dev = map->stripes[stripe_index].dev;
+
+			if (map->type & BTRFS_BLOCK_GROUP_RAID0) {
+				u64 stripes;
+				u32 last_stripe = 0;
+				int j;
+
+				div_u64_rem(stripe_nr_end - 1,
+					    map->num_stripes,
+					    &last_stripe);
+
+				for (j = 0; j < map->num_stripes; j++) {
+					u32 test;
+
+					div_u64_rem(stripe_nr_end - 1 - j,
+						    map->num_stripes, &test);
+					if (test == stripe_index)
+						break;
+				}
+				stripes = stripe_nr_end - 1 - j;
+				do_div(stripes, map->num_stripes);
+				multi->stripes[i].length = map->stripe_len *
+					(stripes - stripe_nr + 1);
+
+				if (i == 0) {
+					multi->stripes[i].length -=
+						stripe_offset;
+					stripe_offset = 0;
+				}
+				if (stripe_index == last_stripe)
+					multi->stripes[i].length -=
+						stripe_end_offset;
+			} else if (map->type & BTRFS_BLOCK_GROUP_RAID10) {
+				u64 stripes;
+				int j;
+				int factor = map->num_stripes /
+					     map->sub_stripes;
+				u32 last_stripe = 0;
+
+				div_u64_rem(stripe_nr_end - 1,
+					    factor, &last_stripe);
+				last_stripe *= map->sub_stripes;
+
+				for (j = 0; j < factor; j++) {
+					u32 test;
+
+					div_u64_rem(stripe_nr_end - 1 - j,
+						    factor, &test);
+
+					if (test ==
+					    stripe_index / map->sub_stripes)
+						break;
+				}
+				stripes = stripe_nr_end - 1 - j;
+				do_div(stripes, factor);
+				multi->stripes[i].length = map->stripe_len *
+					(stripes - stripe_nr + 1);
+
+				if (i < map->sub_stripes) {
+					multi->stripes[i].length -=
+						stripe_offset;
+					if (i == map->sub_stripes - 1)
+						stripe_offset = 0;
+				}
+				if (stripe_index >= last_stripe &&
+				    stripe_index <= (last_stripe +
+						     map->sub_stripes - 1)) {
+					multi->stripes[i].length -=
+						stripe_end_offset;
+				}
+			} else
+				multi->stripes[i].length = *length;
+
+			stripe_index++;
+			if (stripe_index == map->num_stripes) {
+				/* This could only happen for RAID0/10 */
+				stripe_index = 0;
+				stripe_nr++;
+			}
+		}
+	} else {
+		for (i = 0; i < num_stripes; i++) {
+			multi->stripes[i].physical =
+				map->stripes[stripe_index].physical +
+				stripe_offset +
+				stripe_nr * map->stripe_len;
+			multi->stripes[i].dev =
+				map->stripes[stripe_index].dev;
+			stripe_index++;
+		}
 	}
 	if (multi_ret) {
 		*multi_ret = multi;
diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h
index 7fb59d45fe8c..cc2eadaf7a27 100644
--- a/fs/btrfs/volumes.h
+++ b/fs/btrfs/volumes.h
@@ -126,6 +126,7 @@ struct btrfs_fs_devices {
 struct btrfs_bio_stripe {
 	struct btrfs_device *dev;
 	u64 physical;
+	u64 length; /* only used for discard mappings */
 };
 
 struct btrfs_multi_bio {
@@ -145,6 +146,17 @@ struct btrfs_device_info {
 	u64 max_avail;
 };
 
+struct map_lookup {
+	u64 type;
+	int io_align;
+	int io_width;
+	int stripe_len;
+	int sector_size;
+	int num_stripes;
+	int sub_stripes;
+	struct btrfs_bio_stripe stripes[];
+};
+
 /* Used to sort the devices by max_avail(descending sort) */
 int btrfs_cmp_device_free_bytes(const void *dev_info1, const void *dev_info2);
 
diff --git a/fs/btrfs/xattr.c b/fs/btrfs/xattr.c
index d779cefcfd7d..a5303b871b13 100644
--- a/fs/btrfs/xattr.c
+++ b/fs/btrfs/xattr.c
@@ -242,6 +242,8 @@ ssize_t btrfs_listxattr(struct dentry *dentry, char *buffer, size_t size)
 			break;
 
 		di = btrfs_item_ptr(leaf, slot, struct btrfs_dir_item);
+		if (verify_dir_item(root, leaf, di))
+			continue;
 
 		name_len = btrfs_dir_name_len(leaf, di);
 		total_size += name_len + 1;
diff --git a/fs/buffer.c b/fs/buffer.c
index 2e6b1a387b7e..a08bb8e61c6f 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -1138,7 +1138,7 @@ __getblk_slow(struct block_device *bdev, sector_t block, int size)
  * inode list.
  *
  * mark_buffer_dirty() is atomic.  It takes bh->b_page->mapping->private_lock,
- * mapping->tree_lock and the global inode_lock.
+ * mapping->tree_lock and mapping->host->i_lock.
  */
 void mark_buffer_dirty(struct buffer_head *bh)
 {
diff --git a/fs/cachefiles/interface.c b/fs/cachefiles/interface.c
index 37fe101a4e0d..1064805e653b 100644
--- a/fs/cachefiles/interface.c
+++ b/fs/cachefiles/interface.c
@@ -197,7 +197,7 @@ struct fscache_object *cachefiles_grab_object(struct fscache_object *_object)
 }
 
 /*
- * update the auxilliary data for an object object on disk
+ * update the auxiliary data for an object object on disk
  */
 static void cachefiles_update_object(struct fscache_object *_object)
 {
diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c
index 561438b6a50c..e159c529fd2b 100644
--- a/fs/ceph/addr.c
+++ b/fs/ceph/addr.c
@@ -24,7 +24,7 @@
  * context needs to be associated with the osd write during writeback.
  *
  * Similarly, struct ceph_inode_info maintains a set of counters to
- * count dirty pages on the inode.  In the absense of snapshots,
+ * count dirty pages on the inode.  In the absence of snapshots,
  * i_wrbuffer_ref == i_wrbuffer_ref_head == the dirty page count.
  *
  * When a snapshot is taken (that is, when the client receives
@@ -92,7 +92,7 @@ static int ceph_set_page_dirty(struct page *page)
 		ci->i_head_snapc = ceph_get_snap_context(snapc);
 	++ci->i_wrbuffer_ref_head;
 	if (ci->i_wrbuffer_ref == 0)
-		igrab(inode);
+		ihold(inode);
 	++ci->i_wrbuffer_ref;
 	dout("%p set_page_dirty %p idx %lu head %d/%d -> %d/%d "
 	     "snapc %p seq %lld (%d snaps)\n",
diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c
index 6b61ded701e1..5323c330bbf3 100644
--- a/fs/ceph/caps.c
+++ b/fs/ceph/caps.c
@@ -765,7 +765,7 @@ int __ceph_caps_issued_mask(struct ceph_inode_info *ci, int mask, int touch)
 			if (touch) {
 				struct rb_node *q;
 
-				/* touch this + preceeding caps */
+				/* touch this + preceding caps */
 				__touch_cap(cap);
 				for (q = rb_first(&ci->i_caps); q != p;
 				     q = rb_next(q)) {
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index a1ee8fa3a8e7..f60b07b0feb0 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -3215,9 +3215,15 @@ void ceph_mdsc_destroy(struct ceph_fs_client *fsc)
 {
 	struct ceph_mds_client *mdsc = fsc->mdsc;
 
+	dout("mdsc_destroy %p\n", mdsc);
 	ceph_mdsc_stop(mdsc);
+
+	/* flush out any connection work with references to us */
+	ceph_msgr_flush();
+
 	fsc->mdsc = NULL;
 	kfree(mdsc);
+	dout("mdsc_destroy %p done\n", mdsc);
 }
 
 
diff --git a/fs/ceph/snap.c b/fs/ceph/snap.c
index f40b9139e437..e86ec1155f8f 100644
--- a/fs/ceph/snap.c
+++ b/fs/ceph/snap.c
@@ -342,7 +342,7 @@ static int build_snap_context(struct ceph_snap_realm *realm)
 	num = 0;
 	snapc->seq = realm->seq;
 	if (parent) {
-		/* include any of parent's snaps occuring _after_ my
+		/* include any of parent's snaps occurring _after_ my
 		   parent became my parent */
 		for (i = 0; i < parent->cached_context->num_snaps; i++)
 			if (parent->cached_context->snaps[i] >=
@@ -463,8 +463,8 @@ void ceph_queue_cap_snap(struct ceph_inode_info *ci)
 
 		dout("queue_cap_snap %p cap_snap %p queuing under %p\n", inode,
 		     capsnap, snapc);
-		igrab(inode);
-		
+		ihold(inode);
+
 		atomic_set(&capsnap->nref, 1);
 		capsnap->ci = ci;
 		INIT_LIST_HEAD(&capsnap->ci_item);
diff --git a/fs/ceph/super.c b/fs/ceph/super.c
index a9e78b4a258c..f2f77fd3c14c 100644
--- a/fs/ceph/super.c
+++ b/fs/ceph/super.c
@@ -353,7 +353,7 @@ static int ceph_show_options(struct seq_file *m, struct vfsmount *mnt)
 
 	if (opt->name)
 		seq_printf(m, ",name=%s", opt->name);
-	if (opt->secret)
+	if (opt->key)
 		seq_puts(m, ",secret=<hidden>");
 
 	if (opt->mount_timeout != CEPH_MOUNT_TIMEOUT_DEFAULT)
diff --git a/fs/cifs/AUTHORS b/fs/cifs/AUTHORS
index 7f7fa3c302af..ea940b1db77b 100644
--- a/fs/cifs/AUTHORS
+++ b/fs/cifs/AUTHORS
@@ -35,7 +35,7 @@ Adrian Bunk (kcalloc cleanups)
 Miklos Szeredi 
 Kazeon team for various fixes especially for 2.4 version.
 Asser Ferno (Change Notify support)
-Shaggy (Dave Kleikamp) for inumerable small fs suggestions and some good cleanup
+Shaggy (Dave Kleikamp) for innumerable small fs suggestions and some good cleanup
 Gunter Kukkukk (testing and suggestions for support of old servers)
 Igor Mammedov (DFS support)
 Jeff Layton (many, many fixes, as well as great work on the cifs Kerberos code)
diff --git a/fs/cifs/cifs_dfs_ref.c b/fs/cifs/cifs_dfs_ref.c
index 0a265ad9e426..2b68ac57d97d 100644
--- a/fs/cifs/cifs_dfs_ref.c
+++ b/fs/cifs/cifs_dfs_ref.c
@@ -53,7 +53,7 @@ void cifs_dfs_release_automount_timer(void)
  *
  * Extracts sharename form full UNC.
  * i.e. strips from UNC trailing path that is not part of share
- * name and fixup missing '\' in the begining of DFS node refferal
+ * name and fixup missing '\' in the beginning of DFS node refferal
  * if necessary.
  * Returns pointer to share name on success or ERR_PTR on error.
  * Caller is responsible for freeing returned string.
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index 904aa47e3515..2644a5d6cc67 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -5247,7 +5247,7 @@ cifs_fill_unix_set_info(FILE_UNIX_BASIC_INFO *data_offset,
 	 * Samba server ignores set of file size to zero due to bugs in some
 	 * older clients, but we should be precise - we use SetFileSize to
 	 * set file size and do not want to truncate file size to zero
-	 * accidently as happened on one Samba server beta by putting
+	 * accidentally as happened on one Samba server beta by putting
 	 * zero instead of -1 here
 	 */
 	data_offset->EndOfFile = cpu_to_le64(NO_CHANGE_64);
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 8d6c17ab593d..6e2b2addfc78 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -1572,7 +1572,7 @@ match_security(struct TCP_Server_Info *server, struct smb_vol *vol)
 		return false;
 	}
 
-	/* now check if signing mode is acceptible */
+	/* now check if signing mode is acceptable */
 	if ((secFlags & CIFSSEC_MAY_SIGN) == 0 &&
 	    (server->secMode & SECMODE_SIGN_REQUIRED))
 			return false;
@@ -2933,7 +2933,7 @@ mount_fail_check:
 		if (mount_data != mount_data_global)
 			kfree(mount_data);
 		/* If find_unc succeeded then rc == 0 so we can not end */
-		/* up accidently freeing someone elses tcon struct */
+		/* up accidentally freeing someone elses tcon struct */
 		if (tcon)
 			cifs_put_tcon(tcon);
 		else if (pSesInfo)
diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c
index dd5f22918c33..9ea65cf36714 100644
--- a/fs/cifs/dir.c
+++ b/fs/cifs/dir.c
@@ -189,7 +189,7 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode,
 			inode->i_sb, mode, oflags, &oplock, &fileHandle, xid);
 		/* EIO could indicate that (posix open) operation is not
 		   supported, despite what server claimed in capability
-		   negotation.  EREMOTE indicates DFS junction, which is not
+		   negotiation.  EREMOTE indicates DFS junction, which is not
 		   handled in posix open */
 
 		if (rc == 0) {
diff --git a/fs/coda/sysctl.c b/fs/coda/sysctl.c
index 06d27a41807f..af56ad56a89a 100644
--- a/fs/coda/sysctl.c
+++ b/fs/coda/sysctl.c
@@ -61,4 +61,13 @@ void coda_sysctl_clean(void)
 		fs_table_header = NULL;
 	}
 }
+
+#else
+void coda_sysctl_init(void)
+{
+}
+
+void coda_sysctl_clean(void)
+{
+}
 #endif
diff --git a/fs/configfs/dir.c b/fs/configfs/dir.c
index 90ff3cb10de3..3313dd19f543 100644
--- a/fs/configfs/dir.c
+++ b/fs/configfs/dir.c
@@ -990,7 +990,7 @@ static int configfs_dump(struct configfs_dirent *sd, int level)
  * This describes these functions and their helpers.
  *
  * Allow another kernel system to depend on a config_item.  If this
- * happens, the item cannot go away until the dependant can live without
+ * happens, the item cannot go away until the dependent can live without
  * it.  The idea is to give client modules as simple an interface as
  * possible.  When a system asks them to depend on an item, they just
  * call configfs_depend_item().  If the item is live and the client
diff --git a/fs/dlm/lock.c b/fs/dlm/lock.c
index 04b8c449303f..56d6bfcc1e48 100644
--- a/fs/dlm/lock.c
+++ b/fs/dlm/lock.c
@@ -519,7 +519,7 @@ static void toss_rsb(struct kref *kref)
 	}
 }
 
-/* When all references to the rsb are gone it's transfered to
+/* When all references to the rsb are gone it's transferred to
    the tossed list for later disposal. */
 
 static void put_rsb(struct dlm_rsb *r)
diff --git a/fs/dlm/lowcomms.c b/fs/dlm/lowcomms.c
index bffa1e73b9a9..5e2c71f05e46 100644
--- a/fs/dlm/lowcomms.c
+++ b/fs/dlm/lowcomms.c
@@ -810,7 +810,7 @@ static int tcp_accept_from_sock(struct connection *con)
 
 	/*
 	 * Add it to the active queue in case we got data
-	 * beween processing the accept adding the socket
+	 * between processing the accept adding the socket
 	 * to the read_sockets list
 	 */
 	if (!test_and_set_bit(CF_READ_PENDING, &addcon->flags))
diff --git a/fs/dlm/recover.c b/fs/dlm/recover.c
index eda43f362616..14638235f7b2 100644
--- a/fs/dlm/recover.c
+++ b/fs/dlm/recover.c
@@ -304,7 +304,7 @@ static void set_master_lkbs(struct dlm_rsb *r)
 }
 
 /*
- * Propogate the new master nodeid to locks
+ * Propagate the new master nodeid to locks
  * The NEW_MASTER flag tells dlm_recover_locks() which rsb's to consider.
  * The NEW_MASTER2 flag tells recover_lvb() and set_locks_purged() which
  * rsb's to consider.
diff --git a/fs/drop_caches.c b/fs/drop_caches.c
index 816f88e6b9ce..98b77c89494c 100644
--- a/fs/drop_caches.c
+++ b/fs/drop_caches.c
@@ -8,6 +8,7 @@
 #include <linux/writeback.h>
 #include <linux/sysctl.h>
 #include <linux/gfp.h>
+#include "internal.h"
 
 /* A global variable is a bit ugly, but it keeps the code simple */
 int sysctl_drop_caches;
@@ -16,20 +17,23 @@ static void drop_pagecache_sb(struct super_block *sb, void *unused)
 {
 	struct inode *inode, *toput_inode = NULL;
 
-	spin_lock(&inode_lock);
+	spin_lock(&inode_sb_list_lock);
 	list_for_each_entry(inode, &sb->s_inodes, i_sb_list) {
-		if (inode->i_state & (I_FREEING|I_WILL_FREE|I_NEW))
-			continue;
-		if (inode->i_mapping->nrpages == 0)
+		spin_lock(&inode->i_lock);
+		if ((inode->i_state & (I_FREEING|I_WILL_FREE|I_NEW)) ||
+		    (inode->i_mapping->nrpages == 0)) {
+			spin_unlock(&inode->i_lock);
 			continue;
+		}
 		__iget(inode);
-		spin_unlock(&inode_lock);
+		spin_unlock(&inode->i_lock);
+		spin_unlock(&inode_sb_list_lock);
 		invalidate_mapping_pages(inode->i_mapping, 0, -1);
 		iput(toput_inode);
 		toput_inode = inode;
-		spin_lock(&inode_lock);
+		spin_lock(&inode_sb_list_lock);
 	}
-	spin_unlock(&inode_lock);
+	spin_unlock(&inode_sb_list_lock);
 	iput(toput_inode);
 }
 
diff --git a/fs/ecryptfs/crypto.c b/fs/ecryptfs/crypto.c
index bfd8b680e648..d2a70a4561f9 100644
--- a/fs/ecryptfs/crypto.c
+++ b/fs/ecryptfs/crypto.c
@@ -266,7 +266,6 @@ void ecryptfs_destroy_mount_crypt_stat(
 				 &mount_crypt_stat->global_auth_tok_list,
 				 mount_crypt_stat_list) {
 		list_del(&auth_tok->mount_crypt_stat_list);
-		mount_crypt_stat->num_global_auth_toks--;
 		if (auth_tok->global_auth_tok_key
 		    && !(auth_tok->flags & ECRYPTFS_AUTH_TOK_INVALID))
 			key_put(auth_tok->global_auth_tok_key);
@@ -1389,6 +1388,7 @@ int ecryptfs_write_metadata(struct dentry *ecryptfs_dentry)
 		rc = -ENOMEM;
 		goto out;
 	}
+	/* Zeroed page ensures the in-header unencrypted i_size is set to 0 */
 	rc = ecryptfs_write_headers_virt(virt, virt_len, &size, crypt_stat,
 					 ecryptfs_dentry);
 	if (unlikely(rc)) {
diff --git a/fs/ecryptfs/ecryptfs_kernel.h b/fs/ecryptfs/ecryptfs_kernel.h
index e00753496e3e..bd3cafd0949d 100644
--- a/fs/ecryptfs/ecryptfs_kernel.h
+++ b/fs/ecryptfs/ecryptfs_kernel.h
@@ -233,7 +233,7 @@ ecryptfs_get_key_payload_data(struct key *key)
 
 struct ecryptfs_key_sig {
 	struct list_head crypt_stat_list;
-	char keysig[ECRYPTFS_SIG_SIZE_HEX];
+	char keysig[ECRYPTFS_SIG_SIZE_HEX + 1];
 };
 
 struct ecryptfs_filename {
@@ -257,19 +257,18 @@ struct ecryptfs_filename {
 struct ecryptfs_crypt_stat {
 #define ECRYPTFS_STRUCT_INITIALIZED   0x00000001
 #define ECRYPTFS_POLICY_APPLIED       0x00000002
-#define ECRYPTFS_NEW_FILE             0x00000004
-#define ECRYPTFS_ENCRYPTED            0x00000008
-#define ECRYPTFS_SECURITY_WARNING     0x00000010
-#define ECRYPTFS_ENABLE_HMAC          0x00000020
-#define ECRYPTFS_ENCRYPT_IV_PAGES     0x00000040
-#define ECRYPTFS_KEY_VALID            0x00000080
-#define ECRYPTFS_METADATA_IN_XATTR    0x00000100
-#define ECRYPTFS_VIEW_AS_ENCRYPTED    0x00000200
-#define ECRYPTFS_KEY_SET              0x00000400
-#define ECRYPTFS_ENCRYPT_FILENAMES    0x00000800
-#define ECRYPTFS_ENCFN_USE_MOUNT_FNEK 0x00001000
-#define ECRYPTFS_ENCFN_USE_FEK        0x00002000
-#define ECRYPTFS_UNLINK_SIGS	      0x00004000
+#define ECRYPTFS_ENCRYPTED            0x00000004
+#define ECRYPTFS_SECURITY_WARNING     0x00000008
+#define ECRYPTFS_ENABLE_HMAC          0x00000010
+#define ECRYPTFS_ENCRYPT_IV_PAGES     0x00000020
+#define ECRYPTFS_KEY_VALID            0x00000040
+#define ECRYPTFS_METADATA_IN_XATTR    0x00000080
+#define ECRYPTFS_VIEW_AS_ENCRYPTED    0x00000100
+#define ECRYPTFS_KEY_SET              0x00000200
+#define ECRYPTFS_ENCRYPT_FILENAMES    0x00000400
+#define ECRYPTFS_ENCFN_USE_MOUNT_FNEK 0x00000800
+#define ECRYPTFS_ENCFN_USE_FEK        0x00001000
+#define ECRYPTFS_UNLINK_SIGS          0x00002000
 	u32 flags;
 	unsigned int file_version;
 	size_t iv_bytes;
@@ -297,7 +296,6 @@ struct ecryptfs_inode_info {
 	struct inode vfs_inode;
 	struct inode *wii_inode;
 	struct file *lower_file;
-	struct mutex lower_file_mutex;
 	struct ecryptfs_crypt_stat crypt_stat;
 };
 
@@ -333,7 +331,6 @@ struct ecryptfs_global_auth_tok {
 	u32 flags;
 	struct list_head mount_crypt_stat_list;
 	struct key *global_auth_tok_key;
-	struct ecryptfs_auth_tok *global_auth_tok;
 	unsigned char sig[ECRYPTFS_SIG_SIZE_HEX + 1];
 };
 
@@ -380,7 +377,6 @@ struct ecryptfs_mount_crypt_stat {
 	u32 flags;
 	struct list_head global_auth_tok_list;
 	struct mutex global_auth_tok_list_mutex;
-	size_t num_global_auth_toks;
 	size_t global_default_cipher_key_size;
 	size_t global_default_fn_cipher_key_bytes;
 	unsigned char global_default_cipher_name[ECRYPTFS_MAX_CIPHER_NAME_SIZE
diff --git a/fs/ecryptfs/file.c b/fs/ecryptfs/file.c
index 7d1050e254f9..cedc913d11ba 100644
--- a/fs/ecryptfs/file.c
+++ b/fs/ecryptfs/file.c
@@ -273,7 +273,14 @@ static int ecryptfs_release(struct inode *inode, struct file *file)
 static int
 ecryptfs_fsync(struct file *file, int datasync)
 {
-	return vfs_fsync(ecryptfs_file_to_lower(file), datasync);
+	int rc = 0;
+
+	rc = generic_file_fsync(file, datasync);
+	if (rc)
+		goto out;
+	rc = vfs_fsync(ecryptfs_file_to_lower(file), datasync);
+out:
+	return rc;
 }
 
 static int ecryptfs_fasync(int fd, struct file *file, int flag)
diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c
index b592938a84bc..f99051b7adab 100644
--- a/fs/ecryptfs/inode.c
+++ b/fs/ecryptfs/inode.c
@@ -143,26 +143,6 @@ out:
 }
 
 /**
- * grow_file
- * @ecryptfs_dentry: the eCryptfs dentry
- *
- * This is the code which will grow the file to its correct size.
- */
-static int grow_file(struct dentry *ecryptfs_dentry)
-{
-	struct inode *ecryptfs_inode = ecryptfs_dentry->d_inode;
-	char zero_virt[] = { 0x00 };
-	int rc = 0;
-
-	rc = ecryptfs_write(ecryptfs_inode, zero_virt, 0, 1);
-	i_size_write(ecryptfs_inode, 0);
-	rc = ecryptfs_write_inode_size_to_metadata(ecryptfs_inode);
-	ecryptfs_inode_to_private(ecryptfs_inode)->crypt_stat.flags |=
-		ECRYPTFS_NEW_FILE;
-	return rc;
-}
-
-/**
  * ecryptfs_initialize_file
  *
  * Cause the file to be changed from a basic empty file to an ecryptfs
@@ -181,7 +161,6 @@ static int ecryptfs_initialize_file(struct dentry *ecryptfs_dentry)
 		crypt_stat->flags &= ~(ECRYPTFS_ENCRYPTED);
 		goto out;
 	}
-	crypt_stat->flags |= ECRYPTFS_NEW_FILE;
 	ecryptfs_printk(KERN_DEBUG, "Initializing crypto context\n");
 	rc = ecryptfs_new_file_context(ecryptfs_dentry);
 	if (rc) {
@@ -202,9 +181,6 @@ static int ecryptfs_initialize_file(struct dentry *ecryptfs_dentry)
 		printk(KERN_ERR "Error writing headers; rc = [%d]\n", rc);
 		goto out;
 	}
-	rc = grow_file(ecryptfs_dentry);
-	if (rc)
-		printk(KERN_ERR "Error growing file; rc = [%d]\n", rc);
 out:
 	return rc;
 }
diff --git a/fs/ecryptfs/keystore.c b/fs/ecryptfs/keystore.c
index c1436cff6f2d..03e609c45012 100644
--- a/fs/ecryptfs/keystore.c
+++ b/fs/ecryptfs/keystore.c
@@ -65,6 +65,24 @@ static int process_request_key_err(long err_code)
 	return rc;
 }
 
+static int process_find_global_auth_tok_for_sig_err(int err_code)
+{
+	int rc = err_code;
+
+	switch (err_code) {
+	case -ENOENT:
+		ecryptfs_printk(KERN_WARNING, "Missing auth tok\n");
+		break;
+	case -EINVAL:
+		ecryptfs_printk(KERN_WARNING, "Invalid auth tok\n");
+		break;
+	default:
+		rc = process_request_key_err(err_code);
+		break;
+	}
+	return rc;
+}
+
 /**
  * ecryptfs_parse_packet_length
  * @data: Pointer to memory containing length at offset
@@ -403,27 +421,120 @@ out:
 	return rc;
 }
 
+/**
+ * ecryptfs_verify_version
+ * @version: The version number to confirm
+ *
+ * Returns zero on good version; non-zero otherwise
+ */
+static int ecryptfs_verify_version(u16 version)
+{
+	int rc = 0;
+	unsigned char major;
+	unsigned char minor;
+
+	major = ((version >> 8) & 0xFF);
+	minor = (version & 0xFF);
+	if (major != ECRYPTFS_VERSION_MAJOR) {
+		ecryptfs_printk(KERN_ERR, "Major version number mismatch. "
+				"Expected [%d]; got [%d]\n",
+				ECRYPTFS_VERSION_MAJOR, major);
+		rc = -EINVAL;
+		goto out;
+	}
+	if (minor != ECRYPTFS_VERSION_MINOR) {
+		ecryptfs_printk(KERN_ERR, "Minor version number mismatch. "
+				"Expected [%d]; got [%d]\n",
+				ECRYPTFS_VERSION_MINOR, minor);
+		rc = -EINVAL;
+		goto out;
+	}
+out:
+	return rc;
+}
+
+/**
+ * ecryptfs_verify_auth_tok_from_key
+ * @auth_tok_key: key containing the authentication token
+ * @auth_tok: authentication token
+ *
+ * Returns zero on valid auth tok; -EINVAL otherwise
+ */
+static int
+ecryptfs_verify_auth_tok_from_key(struct key *auth_tok_key,
+				  struct ecryptfs_auth_tok **auth_tok)
+{
+	int rc = 0;
+
+	(*auth_tok) = ecryptfs_get_key_payload_data(auth_tok_key);
+	if (ecryptfs_verify_version((*auth_tok)->version)) {
+		printk(KERN_ERR "Data structure version mismatch. Userspace "
+		       "tools must match eCryptfs kernel module with major "
+		       "version [%d] and minor version [%d]\n",
+		       ECRYPTFS_VERSION_MAJOR, ECRYPTFS_VERSION_MINOR);
+		rc = -EINVAL;
+		goto out;
+	}
+	if ((*auth_tok)->token_type != ECRYPTFS_PASSWORD
+	    && (*auth_tok)->token_type != ECRYPTFS_PRIVATE_KEY) {
+		printk(KERN_ERR "Invalid auth_tok structure "
+		       "returned from key query\n");
+		rc = -EINVAL;
+		goto out;
+	}
+out:
+	return rc;
+}
+
 static int
 ecryptfs_find_global_auth_tok_for_sig(
-	struct ecryptfs_global_auth_tok **global_auth_tok,
+	struct key **auth_tok_key,
+	struct ecryptfs_auth_tok **auth_tok,
 	struct ecryptfs_mount_crypt_stat *mount_crypt_stat, char *sig)
 {
 	struct ecryptfs_global_auth_tok *walker;
 	int rc = 0;
 
-	(*global_auth_tok) = NULL;
+	(*auth_tok_key) = NULL;
+	(*auth_tok) = NULL;
 	mutex_lock(&mount_crypt_stat->global_auth_tok_list_mutex);
 	list_for_each_entry(walker,
 			    &mount_crypt_stat->global_auth_tok_list,
 			    mount_crypt_stat_list) {
-		if (memcmp(walker->sig, sig, ECRYPTFS_SIG_SIZE_HEX) == 0) {
-			rc = key_validate(walker->global_auth_tok_key);
-			if (!rc)
-				(*global_auth_tok) = walker;
+		if (memcmp(walker->sig, sig, ECRYPTFS_SIG_SIZE_HEX))
+			continue;
+
+		if (walker->flags & ECRYPTFS_AUTH_TOK_INVALID) {
+			rc = -EINVAL;
 			goto out;
 		}
+
+		rc = key_validate(walker->global_auth_tok_key);
+		if (rc) {
+			if (rc == -EKEYEXPIRED)
+				goto out;
+			goto out_invalid_auth_tok;
+		}
+
+		down_write(&(walker->global_auth_tok_key->sem));
+		rc = ecryptfs_verify_auth_tok_from_key(
+				walker->global_auth_tok_key, auth_tok);
+		if (rc)
+			goto out_invalid_auth_tok_unlock;
+
+		(*auth_tok_key) = walker->global_auth_tok_key;
+		key_get(*auth_tok_key);
+		goto out;
 	}
-	rc = -EINVAL;
+	rc = -ENOENT;
+	goto out;
+out_invalid_auth_tok_unlock:
+	up_write(&(walker->global_auth_tok_key->sem));
+out_invalid_auth_tok:
+	printk(KERN_WARNING "Invalidating auth tok with sig = [%s]\n", sig);
+	walker->flags |= ECRYPTFS_AUTH_TOK_INVALID;
+	key_put(walker->global_auth_tok_key);
+	walker->global_auth_tok_key = NULL;
 out:
 	mutex_unlock(&mount_crypt_stat->global_auth_tok_list_mutex);
 	return rc;
@@ -451,14 +562,11 @@ ecryptfs_find_auth_tok_for_sig(
 	struct ecryptfs_mount_crypt_stat *mount_crypt_stat,
 	char *sig)
 {
-	struct ecryptfs_global_auth_tok *global_auth_tok;
 	int rc = 0;
 
-	(*auth_tok_key) = NULL;
-	(*auth_tok) = NULL;
-	if (ecryptfs_find_global_auth_tok_for_sig(&global_auth_tok,
-						  mount_crypt_stat, sig)) {
-
+	rc = ecryptfs_find_global_auth_tok_for_sig(auth_tok_key, auth_tok,
+						   mount_crypt_stat, sig);
+	if (rc == -ENOENT) {
 		/* if the flag ECRYPTFS_GLOBAL_MOUNT_AUTH_TOK_ONLY is set in the
 		 * mount_crypt_stat structure, we prevent to use auth toks that
 		 * are not inserted through the ecryptfs_add_global_auth_tok
@@ -470,8 +578,7 @@ ecryptfs_find_auth_tok_for_sig(
 
 		rc = ecryptfs_keyring_auth_tok_for_sig(auth_tok_key, auth_tok,
 						       sig);
-	} else
-		(*auth_tok) = global_auth_tok->global_auth_tok;
+	}
 	return rc;
 }
 
@@ -531,6 +638,16 @@ ecryptfs_write_tag_70_packet(char *dest, size_t *remaining_bytes,
 	}
 	s->desc.flags = CRYPTO_TFM_REQ_MAY_SLEEP;
 	(*packet_size) = 0;
+	rc = ecryptfs_find_auth_tok_for_sig(
+		&auth_tok_key,
+		&s->auth_tok, mount_crypt_stat,
+		mount_crypt_stat->global_default_fnek_sig);
+	if (rc) {
+		printk(KERN_ERR "%s: Error attempting to find auth tok for "
+		       "fnek sig [%s]; rc = [%d]\n", __func__,
+		       mount_crypt_stat->global_default_fnek_sig, rc);
+		goto out;
+	}
 	rc = ecryptfs_get_tfm_and_mutex_for_cipher_name(
 		&s->desc.tfm,
 		&s->tfm_mutex, mount_crypt_stat->global_default_fn_cipher_name);
@@ -616,16 +733,6 @@ ecryptfs_write_tag_70_packet(char *dest, size_t *remaining_bytes,
 		goto out_free_unlock;
 	}
 	dest[s->i++] = s->cipher_code;
-	rc = ecryptfs_find_auth_tok_for_sig(
-		&auth_tok_key,
-		&s->auth_tok, mount_crypt_stat,
-		mount_crypt_stat->global_default_fnek_sig);
-	if (rc) {
-		printk(KERN_ERR "%s: Error attempting to find auth tok for "
-		       "fnek sig [%s]; rc = [%d]\n", __func__,
-		       mount_crypt_stat->global_default_fnek_sig, rc);
-		goto out_free_unlock;
-	}
 	/* TODO: Support other key modules than passphrase for
 	 * filename encryption */
 	if (s->auth_tok->token_type != ECRYPTFS_PASSWORD) {
@@ -765,8 +872,10 @@ out_free_unlock:
 out_unlock:
 	mutex_unlock(s->tfm_mutex);
 out:
-	if (auth_tok_key)
+	if (auth_tok_key) {
+		up_write(&(auth_tok_key->sem));
 		key_put(auth_tok_key);
+	}
 	kfree(s);
 	return rc;
 }
@@ -879,6 +988,15 @@ ecryptfs_parse_tag_70_packet(char **filename, size_t *filename_size,
 		       __func__, s->cipher_code);
 		goto out;
 	}
+	rc = ecryptfs_find_auth_tok_for_sig(&auth_tok_key,
+					    &s->auth_tok, mount_crypt_stat,
+					    s->fnek_sig_hex);
+	if (rc) {
+		printk(KERN_ERR "%s: Error attempting to find auth tok for "
+		       "fnek sig [%s]; rc = [%d]\n", __func__, s->fnek_sig_hex,
+		       rc);
+		goto out;
+	}
 	rc = ecryptfs_get_tfm_and_mutex_for_cipher_name(&s->desc.tfm,
 							&s->tfm_mutex,
 							s->cipher_string);
@@ -925,15 +1043,6 @@ ecryptfs_parse_tag_70_packet(char **filename, size_t *filename_size,
 	 * >= ECRYPTFS_MAX_IV_BYTES. */
 	memset(s->iv, 0, ECRYPTFS_MAX_IV_BYTES);
 	s->desc.info = s->iv;
-	rc = ecryptfs_find_auth_tok_for_sig(&auth_tok_key,
-					    &s->auth_tok, mount_crypt_stat,
-					    s->fnek_sig_hex);
-	if (rc) {
-		printk(KERN_ERR "%s: Error attempting to find auth tok for "
-		       "fnek sig [%s]; rc = [%d]\n", __func__, s->fnek_sig_hex,
-		       rc);
-		goto out_free_unlock;
-	}
 	/* TODO: Support other key modules than passphrase for
 	 * filename encryption */
 	if (s->auth_tok->token_type != ECRYPTFS_PASSWORD) {
@@ -1002,8 +1111,10 @@ out:
 		(*filename_size) = 0;
 		(*filename) = NULL;
 	}
-	if (auth_tok_key)
+	if (auth_tok_key) {
+		up_write(&(auth_tok_key->sem));
 		key_put(auth_tok_key);
+	}
 	kfree(s);
 	return rc;
 }
@@ -1520,38 +1631,6 @@ out:
 	return rc;
 }
 
-/**
- * ecryptfs_verify_version
- * @version: The version number to confirm
- *
- * Returns zero on good version; non-zero otherwise
- */
-static int ecryptfs_verify_version(u16 version)
-{
-	int rc = 0;
-	unsigned char major;
-	unsigned char minor;
-
-	major = ((version >> 8) & 0xFF);
-	minor = (version & 0xFF);
-	if (major != ECRYPTFS_VERSION_MAJOR) {
-		ecryptfs_printk(KERN_ERR, "Major version number mismatch. "
-				"Expected [%d]; got [%d]\n",
-				ECRYPTFS_VERSION_MAJOR, major);
-		rc = -EINVAL;
-		goto out;
-	}
-	if (minor != ECRYPTFS_VERSION_MINOR) {
-		ecryptfs_printk(KERN_ERR, "Minor version number mismatch. "
-				"Expected [%d]; got [%d]\n",
-				ECRYPTFS_VERSION_MINOR, minor);
-		rc = -EINVAL;
-		goto out;
-	}
-out:
-	return rc;
-}
-
 int ecryptfs_keyring_auth_tok_for_sig(struct key **auth_tok_key,
 				      struct ecryptfs_auth_tok **auth_tok,
 				      char *sig)
@@ -1563,31 +1642,16 @@ int ecryptfs_keyring_auth_tok_for_sig(struct key **auth_tok_key,
 		printk(KERN_ERR "Could not find key with description: [%s]\n",
 		       sig);
 		rc = process_request_key_err(PTR_ERR(*auth_tok_key));
+		(*auth_tok_key) = NULL;
 		goto out;
 	}
-	(*auth_tok) = ecryptfs_get_key_payload_data(*auth_tok_key);
-	if (ecryptfs_verify_version((*auth_tok)->version)) {
-		printk(KERN_ERR
-		       "Data structure version mismatch. "
-		       "Userspace tools must match eCryptfs "
-		       "kernel module with major version [%d] "
-		       "and minor version [%d]\n",
-		       ECRYPTFS_VERSION_MAJOR,
-		       ECRYPTFS_VERSION_MINOR);
-		rc = -EINVAL;
-		goto out_release_key;
-	}
-	if ((*auth_tok)->token_type != ECRYPTFS_PASSWORD
-	    && (*auth_tok)->token_type != ECRYPTFS_PRIVATE_KEY) {
-		printk(KERN_ERR "Invalid auth_tok structure "
-		       "returned from key query\n");
-		rc = -EINVAL;
-		goto out_release_key;
-	}
-out_release_key:
+	down_write(&(*auth_tok_key)->sem);
+	rc = ecryptfs_verify_auth_tok_from_key(*auth_tok_key, auth_tok);
 	if (rc) {
+		up_write(&(*auth_tok_key)->sem);
 		key_put(*auth_tok_key);
 		(*auth_tok_key) = NULL;
+		goto out;
 	}
 out:
 	return rc;
@@ -1809,6 +1873,7 @@ int ecryptfs_parse_packet_set(struct ecryptfs_crypt_stat *crypt_stat,
 find_next_matching_auth_tok:
 	found_auth_tok = 0;
 	if (auth_tok_key) {
+		up_write(&(auth_tok_key->sem));
 		key_put(auth_tok_key);
 		auth_tok_key = NULL;
 	}
@@ -1895,8 +1960,10 @@ found_matching_auth_tok:
 out_wipe_list:
 	wipe_auth_tok_list(&auth_tok_list);
 out:
-	if (auth_tok_key)
+	if (auth_tok_key) {
+		up_write(&(auth_tok_key->sem));
 		key_put(auth_tok_key);
+	}
 	return rc;
 }
 
@@ -2324,7 +2391,7 @@ ecryptfs_generate_key_packet_set(char *dest_base,
 				 size_t max)
 {
 	struct ecryptfs_auth_tok *auth_tok;
-	struct ecryptfs_global_auth_tok *global_auth_tok;
+	struct key *auth_tok_key = NULL;
 	struct ecryptfs_mount_crypt_stat *mount_crypt_stat =
 		&ecryptfs_superblock_to_private(
 			ecryptfs_dentry->d_sb)->mount_crypt_stat;
@@ -2343,21 +2410,16 @@ ecryptfs_generate_key_packet_set(char *dest_base,
 	list_for_each_entry(key_sig, &crypt_stat->keysig_list,
 			    crypt_stat_list) {
 		memset(key_rec, 0, sizeof(*key_rec));
-		rc = ecryptfs_find_global_auth_tok_for_sig(&global_auth_tok,
+		rc = ecryptfs_find_global_auth_tok_for_sig(&auth_tok_key,
+							   &auth_tok,
 							   mount_crypt_stat,
 							   key_sig->keysig);
 		if (rc) {
-			printk(KERN_ERR "Error attempting to get the global "
-			       "auth_tok; rc = [%d]\n", rc);
+			printk(KERN_WARNING "Unable to retrieve auth tok with "
+			       "sig = [%s]\n", key_sig->keysig);
+			rc = process_find_global_auth_tok_for_sig_err(rc);
 			goto out_free;
 		}
-		if (global_auth_tok->flags & ECRYPTFS_AUTH_TOK_INVALID) {
-			printk(KERN_WARNING
-			       "Skipping invalid auth tok with sig = [%s]\n",
-			       global_auth_tok->sig);
-			continue;
-		}
-		auth_tok = global_auth_tok->global_auth_tok;
 		if (auth_tok->token_type == ECRYPTFS_PASSWORD) {
 			rc = write_tag_3_packet((dest_base + (*len)),
 						&max, auth_tok,
@@ -2395,6 +2457,9 @@ ecryptfs_generate_key_packet_set(char *dest_base,
 			rc = -EINVAL;
 			goto out_free;
 		}
+		up_write(&(auth_tok_key->sem));
+		key_put(auth_tok_key);
+		auth_tok_key = NULL;
 	}
 	if (likely(max > 0)) {
 		dest_base[(*len)] = 0x00;
@@ -2407,6 +2472,11 @@ out_free:
 out:
 	if (rc)
 		(*len) = 0;
+	if (auth_tok_key) {
+		up_write(&(auth_tok_key->sem));
+		key_put(auth_tok_key);
+	}
+
 	mutex_unlock(&crypt_stat->keysig_list_mutex);
 	return rc;
 }
@@ -2424,6 +2494,7 @@ int ecryptfs_add_keysig(struct ecryptfs_crypt_stat *crypt_stat, char *sig)
 		return -ENOMEM;
 	}
 	memcpy(new_key_sig->keysig, sig, ECRYPTFS_SIG_SIZE_HEX);
+	new_key_sig->keysig[ECRYPTFS_SIG_SIZE_HEX] = '\0';
 	/* Caller must hold keysig_list_mutex */
 	list_add(&new_key_sig->crypt_stat_list, &crypt_stat->keysig_list);
 
@@ -2453,7 +2524,6 @@ ecryptfs_add_global_auth_tok(struct ecryptfs_mount_crypt_stat *mount_crypt_stat,
 	mutex_lock(&mount_crypt_stat->global_auth_tok_list_mutex);
 	list_add(&new_auth_tok->mount_crypt_stat_list,
 		 &mount_crypt_stat->global_auth_tok_list);
-	mount_crypt_stat->num_global_auth_toks++;
 	mutex_unlock(&mount_crypt_stat->global_auth_tok_list_mutex);
 out:
 	return rc;
diff --git a/fs/ecryptfs/main.c b/fs/ecryptfs/main.c
index 758323a0f09a..fdb2eb0ad09e 100644
--- a/fs/ecryptfs/main.c
+++ b/fs/ecryptfs/main.c
@@ -122,7 +122,6 @@ int ecryptfs_init_persistent_file(struct dentry *ecryptfs_dentry)
 		ecryptfs_inode_to_private(ecryptfs_dentry->d_inode);
 	int rc = 0;
 
-	mutex_lock(&inode_info->lower_file_mutex);
 	if (!inode_info->lower_file) {
 		struct dentry *lower_dentry;
 		struct vfsmount *lower_mnt =
@@ -138,7 +137,6 @@ int ecryptfs_init_persistent_file(struct dentry *ecryptfs_dentry)
 			inode_info->lower_file = NULL;
 		}
 	}
-	mutex_unlock(&inode_info->lower_file_mutex);
 	return rc;
 }
 
@@ -241,14 +239,14 @@ static int ecryptfs_init_global_auth_toks(
 	struct ecryptfs_mount_crypt_stat *mount_crypt_stat)
 {
 	struct ecryptfs_global_auth_tok *global_auth_tok;
+	struct ecryptfs_auth_tok *auth_tok;
 	int rc = 0;
 
 	list_for_each_entry(global_auth_tok,
 			    &mount_crypt_stat->global_auth_tok_list,
 			    mount_crypt_stat_list) {
 		rc = ecryptfs_keyring_auth_tok_for_sig(
-			&global_auth_tok->global_auth_tok_key,
-			&global_auth_tok->global_auth_tok,
+			&global_auth_tok->global_auth_tok_key, &auth_tok,
 			global_auth_tok->sig);
 		if (rc) {
 			printk(KERN_ERR "Could not find valid key in user "
@@ -256,8 +254,10 @@ static int ecryptfs_init_global_auth_toks(
 			       "option: [%s]\n", global_auth_tok->sig);
 			global_auth_tok->flags |= ECRYPTFS_AUTH_TOK_INVALID;
 			goto out;
-		} else
+		} else {
 			global_auth_tok->flags &= ~ECRYPTFS_AUTH_TOK_INVALID;
+			up_write(&(global_auth_tok->global_auth_tok_key)->sem);
+		}
 	}
 out:
 	return rc;
@@ -276,7 +276,7 @@ static void ecryptfs_init_mount_crypt_stat(
 /**
  * ecryptfs_parse_options
  * @sb: The ecryptfs super block
- * @options: The options pased to the kernel
+ * @options: The options passed to the kernel
  *
  * Parse mount options:
  * debug=N 	   - ecryptfs_verbosity level for debug output
@@ -840,7 +840,7 @@ static int __init ecryptfs_init(void)
 	}
 	rc = ecryptfs_init_messaging();
 	if (rc) {
-		printk(KERN_ERR "Failure occured while attempting to "
+		printk(KERN_ERR "Failure occurred while attempting to "
 				"initialize the communications channel to "
 				"ecryptfsd\n");
 		goto out_destroy_kthread;
diff --git a/fs/ecryptfs/mmap.c b/fs/ecryptfs/mmap.c
index cc64fca89f8d..6a44148c5fb9 100644
--- a/fs/ecryptfs/mmap.c
+++ b/fs/ecryptfs/mmap.c
@@ -62,6 +62,18 @@ static int ecryptfs_writepage(struct page *page, struct writeback_control *wbc)
 {
 	int rc;
 
+	/*
+	 * Refuse to write the page out if we are called from reclaim context
+	 * since our writepage() path may potentially allocate memory when
+	 * calling into the lower fs vfs_write() which may in turn invoke
+	 * us again.
+	 */
+	if (current->flags & PF_MEMALLOC) {
+		redirty_page_for_writepage(wbc, page);
+		rc = 0;
+		goto out;
+	}
+
 	rc = ecryptfs_encrypt_page(page);
 	if (rc) {
 		ecryptfs_printk(KERN_WARNING, "Error encrypting "
@@ -70,8 +82,8 @@ static int ecryptfs_writepage(struct page *page, struct writeback_control *wbc)
 		goto out;
 	}
 	SetPageUptodate(page);
-	unlock_page(page);
 out:
+	unlock_page(page);
 	return rc;
 }
 
@@ -193,11 +205,7 @@ static int ecryptfs_readpage(struct file *file, struct page *page)
 		&ecryptfs_inode_to_private(page->mapping->host)->crypt_stat;
 	int rc = 0;
 
-	if (!crypt_stat
-	    || !(crypt_stat->flags & ECRYPTFS_ENCRYPTED)
-	    || (crypt_stat->flags & ECRYPTFS_NEW_FILE)) {
-		ecryptfs_printk(KERN_DEBUG,
-				"Passing through unencrypted page\n");
+	if (!crypt_stat || !(crypt_stat->flags & ECRYPTFS_ENCRYPTED)) {
 		rc = ecryptfs_read_lower_page_segment(page, page->index, 0,
 						      PAGE_CACHE_SIZE,
 						      page->mapping->host);
@@ -295,8 +303,7 @@ static int ecryptfs_write_begin(struct file *file,
 		struct ecryptfs_crypt_stat *crypt_stat =
 			&ecryptfs_inode_to_private(mapping->host)->crypt_stat;
 
-		if (!(crypt_stat->flags & ECRYPTFS_ENCRYPTED)
-		    || (crypt_stat->flags & ECRYPTFS_NEW_FILE)) {
+		if (!(crypt_stat->flags & ECRYPTFS_ENCRYPTED)) {
 			rc = ecryptfs_read_lower_page_segment(
 				page, index, 0, PAGE_CACHE_SIZE, mapping->host);
 			if (rc) {
@@ -374,6 +381,11 @@ static int ecryptfs_write_begin(struct file *file,
 	    && (pos != 0))
 		zero_user(page, 0, PAGE_CACHE_SIZE);
 out:
+	if (unlikely(rc)) {
+		unlock_page(page);
+		page_cache_release(page);
+		*pagep = NULL;
+	}
 	return rc;
 }
 
@@ -486,13 +498,8 @@ static int ecryptfs_write_end(struct file *file,
 	struct ecryptfs_crypt_stat *crypt_stat =
 		&ecryptfs_inode_to_private(ecryptfs_inode)->crypt_stat;
 	int rc;
+	int need_unlock_page = 1;
 
-	if (crypt_stat->flags & ECRYPTFS_NEW_FILE) {
-		ecryptfs_printk(KERN_DEBUG, "ECRYPTFS_NEW_FILE flag set in "
-			"crypt_stat at memory location [%p]\n", crypt_stat);
-		crypt_stat->flags &= ~(ECRYPTFS_NEW_FILE);
-	} else
-		ecryptfs_printk(KERN_DEBUG, "Not a new file\n");
 	ecryptfs_printk(KERN_DEBUG, "Calling fill_zeros_to_end_of_page"
 			"(page w/ index = [0x%.16lx], to = [%d])\n", index, to);
 	if (!(crypt_stat->flags & ECRYPTFS_ENCRYPTED)) {
@@ -512,26 +519,26 @@ static int ecryptfs_write_end(struct file *file,
 			"zeros in page with index = [0x%.16lx]\n", index);
 		goto out;
 	}
-	rc = ecryptfs_encrypt_page(page);
-	if (rc) {
-		ecryptfs_printk(KERN_WARNING, "Error encrypting page (upper "
-				"index [0x%.16lx])\n", index);
-		goto out;
-	}
+	set_page_dirty(page);
+	unlock_page(page);
+	need_unlock_page = 0;
 	if (pos + copied > i_size_read(ecryptfs_inode)) {
 		i_size_write(ecryptfs_inode, pos + copied);
 		ecryptfs_printk(KERN_DEBUG, "Expanded file size to "
 			"[0x%.16llx]\n",
 			(unsigned long long)i_size_read(ecryptfs_inode));
+		balance_dirty_pages_ratelimited(mapping);
+		rc = ecryptfs_write_inode_size_to_metadata(ecryptfs_inode);
+		if (rc) {
+			printk(KERN_ERR "Error writing inode size to metadata; "
+			       "rc = [%d]\n", rc);
+			goto out;
+		}
 	}
-	rc = ecryptfs_write_inode_size_to_metadata(ecryptfs_inode);
-	if (rc)
-		printk(KERN_ERR "Error writing inode size to metadata; "
-		       "rc = [%d]\n", rc);
-	else
-		rc = copied;
+	rc = copied;
 out:
-	unlock_page(page);
+	if (need_unlock_page)
+		unlock_page(page);
 	page_cache_release(page);
 	return rc;
 }
diff --git a/fs/ecryptfs/read_write.c b/fs/ecryptfs/read_write.c
index db184ef15d3d..85d430963116 100644
--- a/fs/ecryptfs/read_write.c
+++ b/fs/ecryptfs/read_write.c
@@ -44,15 +44,11 @@ int ecryptfs_write_lower(struct inode *ecryptfs_inode, char *data,
 	ssize_t rc;
 
 	inode_info = ecryptfs_inode_to_private(ecryptfs_inode);
-	mutex_lock(&inode_info->lower_file_mutex);
 	BUG_ON(!inode_info->lower_file);
-	inode_info->lower_file->f_pos = offset;
 	fs_save = get_fs();
 	set_fs(get_ds());
-	rc = vfs_write(inode_info->lower_file, data, size,
-		       &inode_info->lower_file->f_pos);
+	rc = vfs_write(inode_info->lower_file, data, size, &offset);
 	set_fs(fs_save);
-	mutex_unlock(&inode_info->lower_file_mutex);
 	mark_inode_dirty_sync(ecryptfs_inode);
 	return rc;
 }
@@ -234,15 +230,11 @@ int ecryptfs_read_lower(char *data, loff_t offset, size_t size,
 	mm_segment_t fs_save;
 	ssize_t rc;
 
-	mutex_lock(&inode_info->lower_file_mutex);
 	BUG_ON(!inode_info->lower_file);
-	inode_info->lower_file->f_pos = offset;
 	fs_save = get_fs();
 	set_fs(get_ds());
-	rc = vfs_read(inode_info->lower_file, data, size,
-		      &inode_info->lower_file->f_pos);
+	rc = vfs_read(inode_info->lower_file, data, size, &offset);
 	set_fs(fs_save);
-	mutex_unlock(&inode_info->lower_file_mutex);
 	return rc;
 }
 
diff --git a/fs/ecryptfs/super.c b/fs/ecryptfs/super.c
index 3042fe123a34..bacc882e1ae4 100644
--- a/fs/ecryptfs/super.c
+++ b/fs/ecryptfs/super.c
@@ -55,7 +55,6 @@ static struct inode *ecryptfs_alloc_inode(struct super_block *sb)
 	if (unlikely(!inode_info))
 		goto out;
 	ecryptfs_init_crypt_stat(&inode_info->crypt_stat);
-	mutex_init(&inode_info->lower_file_mutex);
 	inode_info->lower_file = NULL;
 	inode = &inode_info->vfs_inode;
 out:
@@ -198,7 +197,7 @@ static int ecryptfs_show_options(struct seq_file *m, struct vfsmount *mnt)
 const struct super_operations ecryptfs_sops = {
 	.alloc_inode = ecryptfs_alloc_inode,
 	.destroy_inode = ecryptfs_destroy_inode,
-	.drop_inode = generic_delete_inode,
+	.drop_inode = generic_drop_inode,
 	.statfs = ecryptfs_statfs,
 	.remount_fs = NULL,
 	.evict_inode = ecryptfs_evict_inode,
diff --git a/fs/eventpoll.c b/fs/eventpoll.c
index ed38801b57a7..f9cfd168fbe2 100644
--- a/fs/eventpoll.c
+++ b/fs/eventpoll.c
@@ -181,7 +181,7 @@ struct eventpoll {
 
 	/*
 	 * This is a single linked list that chains all the "struct epitem" that
-	 * happened while transfering ready events to userspace w/out
+	 * happened while transferring ready events to userspace w/out
 	 * holding ->lock.
 	 */
 	struct epitem *ovflist;
@@ -606,7 +606,7 @@ static void ep_free(struct eventpoll *ep)
 	 * We do not need to hold "ep->mtx" here because the epoll file
 	 * is on the way to be removed and no one has references to it
 	 * anymore. The only hit might come from eventpoll_release_file() but
-	 * holding "epmutex" is sufficent here.
+	 * holding "epmutex" is sufficient here.
 	 */
 	mutex_lock(&epmutex);
 
@@ -720,7 +720,7 @@ void eventpoll_release_file(struct file *file)
 	/*
 	 * We don't want to get "file->f_lock" because it is not
 	 * necessary. It is not necessary because we're in the "struct file"
-	 * cleanup path, and this means that noone is using this file anymore.
+	 * cleanup path, and this means that no one is using this file anymore.
 	 * So, for example, epoll_ctl() cannot hit here since if we reach this
 	 * point, the file counter already went to zero and fget() would fail.
 	 * The only hit might come from ep_free() but by holding the mutex
@@ -1112,7 +1112,7 @@ static int ep_send_events_proc(struct eventpoll *ep, struct list_head *head,
 				 * Trigger mode, we need to insert back inside
 				 * the ready list, so that the next call to
 				 * epoll_wait() will check again the events
-				 * availability. At this point, noone can insert
+				 * availability. At this point, no one can insert
 				 * into ep->rdllist besides us. The epoll_ctl()
 				 * callers are locked out by
 				 * ep_scan_ready_list() holding "mtx" and the
diff --git a/fs/exofs/common.h b/fs/exofs/common.h
index 5e74ad3d4009..3bbd46956d77 100644
--- a/fs/exofs/common.h
+++ b/fs/exofs/common.h
@@ -115,7 +115,7 @@ struct exofs_sb_stats {
  * Describes the raid used in the FS. It is part of the device table.
  * This here is taken from the pNFS-objects definition. In exofs we
  * use one raid policy through-out the filesystem. (NOTE: the funny
- * alignment at begining. We take care of it at exofs_device_table.
+ * alignment at beginning. We take care of it at exofs_device_table.
  */
 struct exofs_dt_data_map {
 	__le32	cb_num_comps;
@@ -136,7 +136,7 @@ struct exofs_dt_device_info {
 	u8	systemid[OSD_SYSTEMID_LEN];
 	__le64	long_name_offset;	/* If !0 then offset-in-file */
 	__le32	osdname_len;		/* */
-	u8	osdname[44];		/* Embbeded, Ususally an asci uuid */
+	u8	osdname[44];		/* Embbeded, Usually an asci uuid */
 } __packed;
 
 /*
diff --git a/fs/ext2/balloc.c b/fs/ext2/balloc.c
index 0d06f4e75699..8f44cef1b3ef 100644
--- a/fs/ext2/balloc.c
+++ b/fs/ext2/balloc.c
@@ -850,7 +850,7 @@ static int find_next_reservable_window(
 		rsv_window_remove(sb, my_rsv);
 
 	/*
-	 * Let's book the whole avaliable window for now.  We will check the
+	 * Let's book the whole available window for now.  We will check the
 	 * disk bitmap later and then, if there are free blocks then we adjust
 	 * the window size if it's larger than requested.
 	 * Otherwise, we will remove this node from the tree next time
@@ -1357,9 +1357,9 @@ retry_alloc:
 			goto allocated;
 	}
 	/*
-	 * We may end up a bogus ealier ENOSPC error due to
+	 * We may end up a bogus earlier ENOSPC error due to
 	 * filesystem is "full" of reservations, but
-	 * there maybe indeed free blocks avaliable on disk
+	 * there maybe indeed free blocks available on disk
 	 * In this case, we just forget about the reservations
 	 * just do block allocation as without reservations.
 	 */
diff --git a/fs/ext2/inode.c b/fs/ext2/inode.c
index c47f706878b5..788e09a07f7e 100644
--- a/fs/ext2/inode.c
+++ b/fs/ext2/inode.c
@@ -305,7 +305,7 @@ static ext2_fsblk_t ext2_find_near(struct inode *inode, Indirect *ind)
 		return ind->bh->b_blocknr;
 
 	/*
-	 * It is going to be refered from inode itself? OK, just put it into
+	 * It is going to be referred from inode itself? OK, just put it into
 	 * the same cylinder group then.
 	 */
 	bg_start = ext2_group_first_block_no(inode->i_sb, ei->i_block_group);
@@ -913,7 +913,7 @@ static inline int all_zeroes(__le32 *p, __le32 *q)
  *
  *	When we do truncate() we may have to clean the ends of several indirect
  *	blocks but leave the blocks themselves alive. Block is partially
- *	truncated if some data below the new i_size is refered from it (and
+ *	truncated if some data below the new i_size is referred from it (and
  *	it is on the path to the first completely truncated data block, indeed).
  *	We have to free the top of that path along with everything to the right
  *	of the path. Since no allocation past the truncation point is possible
@@ -990,7 +990,7 @@ no_top:
  *	@p:	array of block numbers
  *	@q:	points immediately past the end of array
  *
- *	We are freeing all blocks refered from that array (numbers are
+ *	We are freeing all blocks referred from that array (numbers are
  *	stored as little-endian 32-bit) and updating @inode->i_blocks
  *	appropriately.
  */
@@ -1030,7 +1030,7 @@ static inline void ext2_free_data(struct inode *inode, __le32 *p, __le32 *q)
  *	@q:	pointer immediately past the end of array
  *	@depth:	depth of the branches to free
  *
- *	We are freeing all blocks refered from these branches (numbers are
+ *	We are freeing all blocks referred from these branches (numbers are
  *	stored as little-endian 32-bit) and updating @inode->i_blocks
  *	appropriately.
  */
diff --git a/fs/ext2/super.c b/fs/ext2/super.c
index 7731695e65d9..0a78dae7e2cb 100644
--- a/fs/ext2/super.c
+++ b/fs/ext2/super.c
@@ -1382,7 +1382,7 @@ static struct dentry *ext2_mount(struct file_system_type *fs_type,
 
 /* Read data from quotafile - avoid pagecache and such because we cannot afford
  * acquiring the locks... As quota files are never truncated and quota code
- * itself serializes the operations (and noone else should touch the files)
+ * itself serializes the operations (and no one else should touch the files)
  * we don't have to be afraid of races */
 static ssize_t ext2_quota_read(struct super_block *sb, int type, char *data,
 			       size_t len, loff_t off)
diff --git a/fs/ext2/xattr.c b/fs/ext2/xattr.c
index c2e4dce984d2..529970617a21 100644
--- a/fs/ext2/xattr.c
+++ b/fs/ext2/xattr.c
@@ -35,7 +35,7 @@
  *   +------------------+
  *
  * The block header is followed by multiple entry descriptors. These entry
- * descriptors are variable in size, and alligned to EXT2_XATTR_PAD
+ * descriptors are variable in size, and aligned to EXT2_XATTR_PAD
  * byte boundaries. The entry descriptors are sorted by attribute name,
  * so that two extended attribute blocks can be compared efficiently.
  *
diff --git a/fs/ext3/balloc.c b/fs/ext3/balloc.c
index 153242187fce..fe52297e31ad 100644
--- a/fs/ext3/balloc.c
+++ b/fs/ext3/balloc.c
@@ -590,7 +590,7 @@ do_more:
 				BUFFER_TRACE(debug_bh, "Deleted!");
 				if (!bh2jh(bitmap_bh)->b_committed_data)
 					BUFFER_TRACE(debug_bh,
-						"No commited data in bitmap");
+						"No committed data in bitmap");
 				BUFFER_TRACE2(debug_bh, bitmap_bh, "bitmap");
 				__brelse(debug_bh);
 			}
@@ -1063,7 +1063,7 @@ static int find_next_reservable_window(
 		rsv_window_remove(sb, my_rsv);
 
 	/*
-	 * Let's book the whole avaliable window for now.  We will check the
+	 * Let's book the whole available window for now.  We will check the
 	 * disk bitmap later and then, if there are free blocks then we adjust
 	 * the window size if it's larger than requested.
 	 * Otherwise, we will remove this node from the tree next time
@@ -1456,7 +1456,7 @@ static int ext3_has_free_blocks(struct ext3_sb_info *sbi)
  *
  * ext3_should_retry_alloc() is called when ENOSPC is returned, and if
  * it is profitable to retry the operation, this function will wait
- * for the current or commiting transaction to complete, and then
+ * for the current or committing transaction to complete, and then
  * return TRUE.
  *
  * if the total number of retries exceed three times, return FALSE.
@@ -1632,9 +1632,9 @@ retry_alloc:
 			goto allocated;
 	}
 	/*
-	 * We may end up a bogus ealier ENOSPC error due to
+	 * We may end up a bogus earlier ENOSPC error due to
 	 * filesystem is "full" of reservations, but
-	 * there maybe indeed free blocks avaliable on disk
+	 * there maybe indeed free blocks available on disk
 	 * In this case, we just forget about the reservations
 	 * just do block allocation as without reservations.
 	 */
diff --git a/fs/ext3/inode.c b/fs/ext3/inode.c
index fe2541d250e4..b5c2f3c97d71 100644
--- a/fs/ext3/inode.c
+++ b/fs/ext3/inode.c
@@ -2055,7 +2055,7 @@ static inline int all_zeroes(__le32 *p, __le32 *q)
  *
  *	When we do truncate() we may have to clean the ends of several
  *	indirect blocks but leave the blocks themselves alive. Block is
- *	partially truncated if some data below the new i_size is refered
+ *	partially truncated if some data below the new i_size is referred
  *	from it (and it is on the path to the first completely truncated
  *	data block, indeed).  We have to free the top of that path along
  *	with everything to the right of the path. Since no allocation
@@ -2184,7 +2184,7 @@ static void ext3_clear_blocks(handle_t *handle, struct inode *inode,
  * @first:	array of block numbers
  * @last:	points immediately past the end of array
  *
- * We are freeing all blocks refered from that array (numbers are stored as
+ * We are freeing all blocks referred from that array (numbers are stored as
  * little-endian 32-bit) and updating @inode->i_blocks appropriately.
  *
  * We accumulate contiguous runs of blocks to free.  Conveniently, if these
@@ -2272,7 +2272,7 @@ static void ext3_free_data(handle_t *handle, struct inode *inode,
  *	@last:	pointer immediately past the end of array
  *	@depth:	depth of the branches to free
  *
- *	We are freeing all blocks refered from these branches (numbers are
+ *	We are freeing all blocks referred from these branches (numbers are
  *	stored as little-endian 32-bit) and updating @inode->i_blocks
  *	appropriately.
  */
diff --git a/fs/ext3/resize.c b/fs/ext3/resize.c
index 108b142e11ed..7916e4ce166a 100644
--- a/fs/ext3/resize.c
+++ b/fs/ext3/resize.c
@@ -1009,7 +1009,7 @@ int ext3_group_extend(struct super_block *sb, struct ext3_super_block *es,
 
 	if (test_opt(sb, DEBUG))
 		printk(KERN_DEBUG "EXT3-fs: extending last group from "E3FSBLK
-		       " upto "E3FSBLK" blocks\n",
+		       " up to "E3FSBLK" blocks\n",
 		       o_blocks_count, n_blocks_count);
 
 	if (n_blocks_count == 0 || n_blocks_count == o_blocks_count)
diff --git a/fs/ext3/super.c b/fs/ext3/super.c
index 071689f86e18..3c6a9e0eadc1 100644
--- a/fs/ext3/super.c
+++ b/fs/ext3/super.c
@@ -2925,7 +2925,7 @@ static int ext3_quota_on(struct super_block *sb, int type, int format_id,
 
 /* Read data from quotafile - avoid pagecache and such because we cannot afford
  * acquiring the locks... As quota files are never truncated and quota code
- * itself serializes the operations (and noone else should touch the files)
+ * itself serializes the operations (and no one else should touch the files)
  * we don't have to be afraid of races */
 static ssize_t ext3_quota_read(struct super_block *sb, int type, char *data,
 			       size_t len, loff_t off)
diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c
index adf96b822781..1c67139ad4b4 100644
--- a/fs/ext4/balloc.c
+++ b/fs/ext4/balloc.c
@@ -21,6 +21,8 @@
 #include "ext4_jbd2.h"
 #include "mballoc.h"
 
+#include <trace/events/ext4.h>
+
 /*
  * balloc.c contains the blocks allocation and deallocation routines
  */
@@ -342,6 +344,7 @@ ext4_read_block_bitmap(struct super_block *sb, ext4_group_t block_group)
 	 * We do it here so the bitmap uptodate bit
 	 * get set with buffer lock held.
 	 */
+	trace_ext4_read_block_bitmap_load(sb, block_group);
 	set_bitmap_uptodate(bh);
 	if (bh_submit_read(bh) < 0) {
 		put_bh(bh);
@@ -544,7 +547,7 @@ int ext4_claim_free_blocks(struct ext4_sb_info *sbi,
  *
  * ext4_should_retry_alloc() is called when ENOSPC is returned, and if
  * it is profitable to retry the operation, this function will wait
- * for the current or commiting transaction to complete, and then
+ * for the current or committing transaction to complete, and then
  * return TRUE.
  *
  * if the total number of retries exceed three times, return FALSE.
diff --git a/fs/ext4/ext4_jbd2.h b/fs/ext4/ext4_jbd2.h
index d8b992e658c1..e25e99bf7ee1 100644
--- a/fs/ext4/ext4_jbd2.h
+++ b/fs/ext4/ext4_jbd2.h
@@ -202,13 +202,6 @@ static inline int ext4_handle_has_enough_credits(handle_t *handle, int needed)
 	return 1;
 }
 
-static inline void ext4_journal_release_buffer(handle_t *handle,
-						struct buffer_head *bh)
-{
-	if (ext4_handle_valid(handle))
-		jbd2_journal_release_buffer(handle, bh);
-}
-
 static inline handle_t *ext4_journal_start(struct inode *inode, int nblocks)
 {
 	return ext4_journal_start_sb(inode->i_sb, nblocks);
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 7516fb9c0bd5..4890d6f3ad15 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -44,6 +44,8 @@
 #include "ext4_jbd2.h"
 #include "ext4_extents.h"
 
+#include <trace/events/ext4.h>
+
 static int ext4_ext_truncate_extend_restart(handle_t *handle,
 					    struct inode *inode,
 					    int needed)
@@ -664,6 +666,8 @@ ext4_ext_find_extent(struct inode *inode, ext4_lblk_t block,
 		if (unlikely(!bh))
 			goto err;
 		if (!bh_uptodate_or_lock(bh)) {
+			trace_ext4_ext_load_extent(inode, block,
+						path[ppos].p_block);
 			if (bh_submit_read(bh) < 0) {
 				put_bh(bh);
 				goto err;
@@ -1034,7 +1038,7 @@ cleanup:
 		for (i = 0; i < depth; i++) {
 			if (!ablocks[i])
 				continue;
-			ext4_free_blocks(handle, inode, 0, ablocks[i], 1,
+			ext4_free_blocks(handle, inode, NULL, ablocks[i], 1,
 					 EXT4_FREE_BLOCKS_METADATA);
 		}
 	}
@@ -1725,7 +1729,7 @@ repeat:
 		BUG_ON(npath->p_depth != path->p_depth);
 		eh = npath[depth].p_hdr;
 		if (le16_to_cpu(eh->eh_entries) < le16_to_cpu(eh->eh_max)) {
-			ext_debug("next leaf isnt full(%d)\n",
+			ext_debug("next leaf isn't full(%d)\n",
 				  le16_to_cpu(eh->eh_entries));
 			path = npath;
 			goto repeat;
@@ -2059,7 +2063,7 @@ static int ext4_ext_rm_idx(handle_t *handle, struct inode *inode,
 	if (err)
 		return err;
 	ext_debug("index is empty, remove it, free block %llu\n", leaf);
-	ext4_free_blocks(handle, inode, 0, leaf, 1,
+	ext4_free_blocks(handle, inode, NULL, leaf, 1,
 			 EXT4_FREE_BLOCKS_METADATA | EXT4_FREE_BLOCKS_FORGET);
 	return err;
 }
@@ -2156,7 +2160,7 @@ static int ext4_remove_blocks(handle_t *handle, struct inode *inode,
 		num = le32_to_cpu(ex->ee_block) + ee_len - from;
 		start = ext4_ext_pblock(ex) + ee_len - num;
 		ext_debug("free last %u blocks starting %llu\n", num, start);
-		ext4_free_blocks(handle, inode, 0, start, num, flags);
+		ext4_free_blocks(handle, inode, NULL, start, num, flags);
 	} else if (from == le32_to_cpu(ex->ee_block)
 		   && to <= le32_to_cpu(ex->ee_block) + ee_len - 1) {
 		printk(KERN_INFO "strange request: removal %u-%u from %u:%u\n",
@@ -2529,7 +2533,7 @@ static int ext4_ext_zeroout(struct inode *inode, struct ext4_extent *ex)
 /*
  * This function is called by ext4_ext_map_blocks() if someone tries to write
  * to an uninitialized extent. It may result in splitting the uninitialized
- * extent into multiple extents (upto three - one initialized and two
+ * extent into multiple extents (up to three - one initialized and two
  * uninitialized).
  * There are three possibilities:
  *   a> There is no split required: Entire extent should be initialized
@@ -3108,14 +3112,13 @@ static int check_eofblocks_fl(handle_t *handle, struct inode *inode,
 {
 	int i, depth;
 	struct ext4_extent_header *eh;
-	struct ext4_extent *ex, *last_ex;
+	struct ext4_extent *last_ex;
 
 	if (!ext4_test_inode_flag(inode, EXT4_INODE_EOFBLOCKS))
 		return 0;
 
 	depth = ext_depth(inode);
 	eh = path[depth].p_hdr;
-	ex = path[depth].p_ext;
 
 	if (unlikely(!eh->eh_entries)) {
 		EXT4_ERROR_INODE(inode, "eh->eh_entries == 0 and "
@@ -3171,7 +3174,7 @@ ext4_ext_handle_uninitialized_extents(handle_t *handle, struct inode *inode,
 						   path, flags);
 		/*
 		 * Flag the inode(non aio case) or end_io struct (aio case)
-		 * that this IO needs to convertion to written when IO is
+		 * that this IO needs to conversion to written when IO is
 		 * completed
 		 */
 		if (io && !(io->flag & EXT4_IO_END_UNWRITTEN)) {
@@ -3295,9 +3298,8 @@ int ext4_ext_map_blocks(handle_t *handle, struct inode *inode,
 			struct ext4_map_blocks *map, int flags)
 {
 	struct ext4_ext_path *path = NULL;
-	struct ext4_extent_header *eh;
 	struct ext4_extent newex, *ex;
-	ext4_fsblk_t newblock;
+	ext4_fsblk_t newblock = 0;
 	int err = 0, depth, ret;
 	unsigned int allocated = 0;
 	struct ext4_allocation_request ar;
@@ -3305,6 +3307,7 @@ int ext4_ext_map_blocks(handle_t *handle, struct inode *inode,
 
 	ext_debug("blocks %u/%u requested for inode %lu\n",
 		  map->m_lblk, map->m_len, inode->i_ino);
+	trace_ext4_ext_map_blocks_enter(inode, map->m_lblk, map->m_len, flags);
 
 	/* check in cache */
 	if (ext4_ext_in_cache(inode, map->m_lblk, &newex)) {
@@ -3352,7 +3355,6 @@ int ext4_ext_map_blocks(handle_t *handle, struct inode *inode,
 		err = -EIO;
 		goto out2;
 	}
-	eh = path[depth].p_hdr;
 
 	ex = path[depth].p_ext;
 	if (ex) {
@@ -3458,10 +3460,10 @@ int ext4_ext_map_blocks(handle_t *handle, struct inode *inode,
 		ext4_ext_mark_uninitialized(&newex);
 		/*
 		 * io_end structure was created for every IO write to an
-		 * uninitialized extent. To avoid unecessary conversion,
+		 * uninitialized extent. To avoid unnecessary conversion,
 		 * here we flag the IO that really needs the conversion.
 		 * For non asycn direct IO case, flag the inode state
-		 * that we need to perform convertion when IO is done.
+		 * that we need to perform conversion when IO is done.
 		 */
 		if ((flags & EXT4_GET_BLOCKS_PRE_IO)) {
 			if (io && !(io->flag & EXT4_IO_END_UNWRITTEN)) {
@@ -3485,7 +3487,7 @@ int ext4_ext_map_blocks(handle_t *handle, struct inode *inode,
 		/* not a good idea to call discard here directly,
 		 * but otherwise we'd need to call it every free() */
 		ext4_discard_preallocations(inode);
-		ext4_free_blocks(handle, inode, 0, ext4_ext_pblock(&newex),
+		ext4_free_blocks(handle, inode, NULL, ext4_ext_pblock(&newex),
 				 ext4_ext_get_actual_len(&newex), 0);
 		goto out2;
 	}
@@ -3525,6 +3527,8 @@ out2:
 		ext4_ext_drop_refs(path);
 		kfree(path);
 	}
+	trace_ext4_ext_map_blocks_exit(inode, map->m_lblk,
+		newblock, map->m_len, err ? err : allocated);
 	return err ? err : allocated;
 }
 
@@ -3658,6 +3662,7 @@ long ext4_fallocate(struct file *file, int mode, loff_t offset, loff_t len)
 	if (!(ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS)))
 		return -EOPNOTSUPP;
 
+	trace_ext4_fallocate_enter(inode, offset, len, mode);
 	map.m_lblk = offset >> blkbits;
 	/*
 	 * We can't just convert len to max_blocks because
@@ -3673,6 +3678,7 @@ long ext4_fallocate(struct file *file, int mode, loff_t offset, loff_t len)
 	ret = inode_newsize_ok(inode, (len + offset));
 	if (ret) {
 		mutex_unlock(&inode->i_mutex);
+		trace_ext4_fallocate_exit(inode, offset, max_blocks, ret);
 		return ret;
 	}
 retry:
@@ -3717,6 +3723,8 @@ retry:
 		goto retry;
 	}
 	mutex_unlock(&inode->i_mutex);
+	trace_ext4_fallocate_exit(inode, offset, max_blocks,
+				ret > 0 ? ret2 : ret);
 	return ret > 0 ? ret2 : ret;
 }
 
@@ -3775,6 +3783,7 @@ int ext4_convert_unwritten_extents(struct inode *inode, loff_t offset,
 	}
 	return ret > 0 ? ret2 : ret;
 }
+
 /*
  * Callback function called for each extent to gather FIEMAP information.
  */
@@ -3782,38 +3791,162 @@ static int ext4_ext_fiemap_cb(struct inode *inode, struct ext4_ext_path *path,
 		       struct ext4_ext_cache *newex, struct ext4_extent *ex,
 		       void *data)
 {
-	struct fiemap_extent_info *fieinfo = data;
-	unsigned char blksize_bits = inode->i_sb->s_blocksize_bits;
 	__u64	logical;
 	__u64	physical;
 	__u64	length;
+	loff_t	size;
 	__u32	flags = 0;
-	int	error;
+	int		ret = 0;
+	struct fiemap_extent_info *fieinfo = data;
+	unsigned char blksize_bits;
 
-	logical =  (__u64)newex->ec_block << blksize_bits;
+	blksize_bits = inode->i_sb->s_blocksize_bits;
+	logical = (__u64)newex->ec_block << blksize_bits;
 
 	if (newex->ec_start == 0) {
-		pgoff_t offset;
-		struct page *page;
+		/*
+		 * No extent in extent-tree contains block @newex->ec_start,
+		 * then the block may stay in 1)a hole or 2)delayed-extent.
+		 *
+		 * Holes or delayed-extents are processed as follows.
+		 * 1. lookup dirty pages with specified range in pagecache.
+		 *    If no page is got, then there is no delayed-extent and
+		 *    return with EXT_CONTINUE.
+		 * 2. find the 1st mapped buffer,
+		 * 3. check if the mapped buffer is both in the request range
+		 *    and a delayed buffer. If not, there is no delayed-extent,
+		 *    then return.
+		 * 4. a delayed-extent is found, the extent will be collected.
+		 */
+		ext4_lblk_t	end = 0;
+		pgoff_t		last_offset;
+		pgoff_t		offset;
+		pgoff_t		index;
+		struct page	**pages = NULL;
 		struct buffer_head *bh = NULL;
+		struct buffer_head *head = NULL;
+		unsigned int nr_pages = PAGE_SIZE / sizeof(struct page *);
+
+		pages = kmalloc(PAGE_SIZE, GFP_KERNEL);
+		if (pages == NULL)
+			return -ENOMEM;
 
 		offset = logical >> PAGE_SHIFT;
-		page = find_get_page(inode->i_mapping, offset);
-		if (!page || !page_has_buffers(page))
-			return EXT_CONTINUE;
+repeat:
+		last_offset = offset;
+		head = NULL;
+		ret = find_get_pages_tag(inode->i_mapping, &offset,
+					PAGECACHE_TAG_DIRTY, nr_pages, pages);
+
+		if (!(flags & FIEMAP_EXTENT_DELALLOC)) {
+			/* First time, try to find a mapped buffer. */
+			if (ret == 0) {
+out:
+				for (index = 0; index < ret; index++)
+					page_cache_release(pages[index]);
+				/* just a hole. */
+				kfree(pages);
+				return EXT_CONTINUE;
+			}
 
-		bh = page_buffers(page);
+			/* Try to find the 1st mapped buffer. */
+			end = ((__u64)pages[0]->index << PAGE_SHIFT) >>
+				  blksize_bits;
+			if (!page_has_buffers(pages[0]))
+				goto out;
+			head = page_buffers(pages[0]);
+			if (!head)
+				goto out;
 
-		if (!bh)
-			return EXT_CONTINUE;
+			bh = head;
+			do {
+				if (buffer_mapped(bh)) {
+					/* get the 1st mapped buffer. */
+					if (end > newex->ec_block +
+						newex->ec_len)
+						/* The buffer is out of
+						 * the request range.
+						 */
+						goto out;
+					goto found_mapped_buffer;
+				}
+				bh = bh->b_this_page;
+				end++;
+			} while (bh != head);
 
-		if (buffer_delay(bh)) {
-			flags |= FIEMAP_EXTENT_DELALLOC;
-			page_cache_release(page);
+			/* No mapped buffer found. */
+			goto out;
 		} else {
-			page_cache_release(page);
-			return EXT_CONTINUE;
+			/*Find contiguous delayed buffers. */
+			if (ret > 0 && pages[0]->index == last_offset)
+				head = page_buffers(pages[0]);
+			bh = head;
 		}
+
+found_mapped_buffer:
+		if (bh != NULL && buffer_delay(bh)) {
+			/* 1st or contiguous delayed buffer found. */
+			if (!(flags & FIEMAP_EXTENT_DELALLOC)) {
+				/*
+				 * 1st delayed buffer found, record
+				 * the start of extent.
+				 */
+				flags |= FIEMAP_EXTENT_DELALLOC;
+				newex->ec_block = end;
+				logical = (__u64)end << blksize_bits;
+			}
+			/* Find contiguous delayed buffers. */
+			do {
+				if (!buffer_delay(bh))
+					goto found_delayed_extent;
+				bh = bh->b_this_page;
+				end++;
+			} while (bh != head);
+
+			for (index = 1; index < ret; index++) {
+				if (!page_has_buffers(pages[index])) {
+					bh = NULL;
+					break;
+				}
+				head = page_buffers(pages[index]);
+				if (!head) {
+					bh = NULL;
+					break;
+				}
+				if (pages[index]->index !=
+					pages[0]->index + index) {
+					/* Blocks are not contiguous. */
+					bh = NULL;
+					break;
+				}
+				bh = head;
+				do {
+					if (!buffer_delay(bh))
+						/* Delayed-extent ends. */
+						goto found_delayed_extent;
+					bh = bh->b_this_page;
+					end++;
+				} while (bh != head);
+			}
+		} else if (!(flags & FIEMAP_EXTENT_DELALLOC))
+			/* a hole found. */
+			goto out;
+
+found_delayed_extent:
+		newex->ec_len = min(end - newex->ec_block,
+						(ext4_lblk_t)EXT_INIT_MAX_LEN);
+		if (ret == nr_pages && bh != NULL &&
+			newex->ec_len < EXT_INIT_MAX_LEN &&
+			buffer_delay(bh)) {
+			/* Have not collected an extent and continue. */
+			for (index = 0; index < ret; index++)
+				page_cache_release(pages[index]);
+			goto repeat;
+		}
+
+		for (index = 0; index < ret; index++)
+			page_cache_release(pages[index]);
+		kfree(pages);
 	}
 
 	physical = (__u64)newex->ec_start << blksize_bits;
@@ -3822,32 +3955,16 @@ static int ext4_ext_fiemap_cb(struct inode *inode, struct ext4_ext_path *path,
 	if (ex && ext4_ext_is_uninitialized(ex))
 		flags |= FIEMAP_EXTENT_UNWRITTEN;
 
-	/*
-	 * If this extent reaches EXT_MAX_BLOCK, it must be last.
-	 *
-	 * Or if ext4_ext_next_allocated_block is EXT_MAX_BLOCK,
-	 * this also indicates no more allocated blocks.
-	 *
-	 * XXX this might miss a single-block extent at EXT_MAX_BLOCK
-	 */
-	if (ext4_ext_next_allocated_block(path) == EXT_MAX_BLOCK ||
-	    newex->ec_block + newex->ec_len - 1 == EXT_MAX_BLOCK) {
-		loff_t size = i_size_read(inode);
-		loff_t bs = EXT4_BLOCK_SIZE(inode->i_sb);
-
+	size = i_size_read(inode);
+	if (logical + length >= size)
 		flags |= FIEMAP_EXTENT_LAST;
-		if ((flags & FIEMAP_EXTENT_DELALLOC) &&
-		    logical+length > size)
-			length = (size - logical + bs - 1) & ~(bs-1);
-	}
 
-	error = fiemap_fill_next_extent(fieinfo, logical, physical,
+	ret = fiemap_fill_next_extent(fieinfo, logical, physical,
 					length, flags);
-	if (error < 0)
-		return error;
-	if (error == 1)
+	if (ret < 0)
+		return ret;
+	if (ret == 1)
 		return EXT_BREAK;
-
 	return EXT_CONTINUE;
 }
 
diff --git a/fs/ext4/fsync.c b/fs/ext4/fsync.c
index 7829b287822a..4673bc05274f 100644
--- a/fs/ext4/fsync.c
+++ b/fs/ext4/fsync.c
@@ -101,7 +101,7 @@ extern int ext4_flush_completed_IO(struct inode *inode)
 		 * to the work-to-be schedule is freed.
 		 *
 		 * Thus we need to keep the io structure still valid here after
-		 * convertion finished. The io structure has a flag to
+		 * conversion finished. The io structure has a flag to
 		 * avoid double converting from both fsync and background work
 		 * queue work.
 		 */
@@ -164,20 +164,20 @@ int ext4_sync_file(struct file *file, int datasync)
 
 	J_ASSERT(ext4_journal_current_handle() == NULL);
 
-	trace_ext4_sync_file(file, datasync);
+	trace_ext4_sync_file_enter(file, datasync);
 
 	if (inode->i_sb->s_flags & MS_RDONLY)
 		return 0;
 
 	ret = ext4_flush_completed_IO(inode);
 	if (ret < 0)
-		return ret;
+		goto out;
 
 	if (!journal) {
 		ret = generic_file_fsync(file, datasync);
 		if (!ret && !list_empty(&inode->i_dentry))
 			ext4_sync_parent(inode);
-		return ret;
+		goto out;
 	}
 
 	/*
@@ -194,8 +194,10 @@ int ext4_sync_file(struct file *file, int datasync)
 	 *  (they were dirtied by commit).  But that's OK - the blocks are
 	 *  safe in-journal, which is all fsync() needs to ensure.
 	 */
-	if (ext4_should_journal_data(inode))
-		return ext4_force_commit(inode->i_sb);
+	if (ext4_should_journal_data(inode)) {
+		ret = ext4_force_commit(inode->i_sb);
+		goto out;
+	}
 
 	commit_tid = datasync ? ei->i_datasync_tid : ei->i_sync_tid;
 	if (jbd2_log_start_commit(journal, commit_tid)) {
@@ -215,5 +217,7 @@ int ext4_sync_file(struct file *file, int datasync)
 		ret = jbd2_log_wait_commit(journal, commit_tid);
 	} else if (journal->j_flags & JBD2_BARRIER)
 		blkdev_issue_flush(inode->i_sb->s_bdev, GFP_KERNEL, NULL);
+ out:
+	trace_ext4_sync_file_exit(inode, ret);
 	return ret;
 }
diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c
index 78b79e1bd7ed..21bb2f61e502 100644
--- a/fs/ext4/ialloc.c
+++ b/fs/ext4/ialloc.c
@@ -152,6 +152,7 @@ ext4_read_inode_bitmap(struct super_block *sb, ext4_group_t block_group)
 	 * We do it here so the bitmap uptodate bit
 	 * get set with buffer lock held.
 	 */
+	trace_ext4_load_inode_bitmap(sb, block_group);
 	set_bitmap_uptodate(bh);
 	if (bh_submit_read(bh) < 0) {
 		put_bh(bh);
@@ -649,7 +650,7 @@ static int find_group_other(struct super_block *sb, struct inode *parent,
 		*group = parent_group + flex_size;
 		if (*group > ngroups)
 			*group = 0;
-		return find_group_orlov(sb, parent, group, mode, 0);
+		return find_group_orlov(sb, parent, group, mode, NULL);
 	}
 
 	/*
@@ -1054,6 +1055,11 @@ got:
 		}
 	}
 
+	if (ext4_handle_valid(handle)) {
+		ei->i_sync_tid = handle->h_transaction->t_tid;
+		ei->i_datasync_tid = handle->h_transaction->t_tid;
+	}
+
 	err = ext4_mark_inode_dirty(handle, inode);
 	if (err) {
 		ext4_std_error(sb, err);
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 9297ad46c465..ad8e303c0d29 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -173,7 +173,7 @@ int ext4_truncate_restart_trans(handle_t *handle, struct inode *inode,
 	BUG_ON(EXT4_JOURNAL(inode) == NULL);
 	jbd_debug(2, "restarting handle %p\n", handle);
 	up_write(&EXT4_I(inode)->i_data_sem);
-	ret = ext4_journal_restart(handle, blocks_for_truncate(inode));
+	ret = ext4_journal_restart(handle, nblocks);
 	down_write(&EXT4_I(inode)->i_data_sem);
 	ext4_discard_preallocations(inode);
 
@@ -720,7 +720,7 @@ allocated:
 	return ret;
 failed_out:
 	for (i = 0; i < index; i++)
-		ext4_free_blocks(handle, inode, 0, new_blocks[i], 1, 0);
+		ext4_free_blocks(handle, inode, NULL, new_blocks[i], 1, 0);
 	return ret;
 }
 
@@ -823,20 +823,20 @@ static int ext4_alloc_branch(handle_t *handle, struct inode *inode,
 	return err;
 failed:
 	/* Allocation failed, free what we already allocated */
-	ext4_free_blocks(handle, inode, 0, new_blocks[0], 1, 0);
+	ext4_free_blocks(handle, inode, NULL, new_blocks[0], 1, 0);
 	for (i = 1; i <= n ; i++) {
 		/*
 		 * branch[i].bh is newly allocated, so there is no
 		 * need to revoke the block, which is why we don't
 		 * need to set EXT4_FREE_BLOCKS_METADATA.
 		 */
-		ext4_free_blocks(handle, inode, 0, new_blocks[i], 1,
+		ext4_free_blocks(handle, inode, NULL, new_blocks[i], 1,
 				 EXT4_FREE_BLOCKS_FORGET);
 	}
 	for (i = n+1; i < indirect_blks; i++)
-		ext4_free_blocks(handle, inode, 0, new_blocks[i], 1, 0);
+		ext4_free_blocks(handle, inode, NULL, new_blocks[i], 1, 0);
 
-	ext4_free_blocks(handle, inode, 0, new_blocks[i], num, 0);
+	ext4_free_blocks(handle, inode, NULL, new_blocks[i], num, 0);
 
 	return err;
 }
@@ -924,7 +924,7 @@ err_out:
 		ext4_free_blocks(handle, inode, where[i].bh, 0, 1,
 				 EXT4_FREE_BLOCKS_FORGET);
 	}
-	ext4_free_blocks(handle, inode, 0, le32_to_cpu(where[num].key),
+	ext4_free_blocks(handle, inode, NULL, le32_to_cpu(where[num].key),
 			 blks, 0);
 
 	return err;
@@ -973,6 +973,7 @@ static int ext4_ind_map_blocks(handle_t *handle, struct inode *inode,
 	int count = 0;
 	ext4_fsblk_t first_block = 0;
 
+	trace_ext4_ind_map_blocks_enter(inode, map->m_lblk, map->m_len, flags);
 	J_ASSERT(!(ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS)));
 	J_ASSERT(handle != NULL || (flags & EXT4_GET_BLOCKS_CREATE) == 0);
 	depth = ext4_block_to_path(inode, map->m_lblk, offsets,
@@ -1058,6 +1059,8 @@ cleanup:
 		partial--;
 	}
 out:
+	trace_ext4_ind_map_blocks_exit(inode, map->m_lblk,
+				map->m_pblk, map->m_len, err);
 	return err;
 }
 
@@ -2060,7 +2063,7 @@ static int mpage_da_submit_io(struct mpage_da_data *mpd,
 		if (nr_pages == 0)
 			break;
 		for (i = 0; i < nr_pages; i++) {
-			int commit_write = 0, redirty_page = 0;
+			int commit_write = 0, skip_page = 0;
 			struct page *page = pvec.pages[i];
 
 			index = page->index;
@@ -2086,14 +2089,12 @@ static int mpage_da_submit_io(struct mpage_da_data *mpd,
 			 * If the page does not have buffers (for
 			 * whatever reason), try to create them using
 			 * __block_write_begin.  If this fails,
-			 * redirty the page and move on.
+			 * skip the page and move on.
 			 */
 			if (!page_has_buffers(page)) {
 				if (__block_write_begin(page, 0, len,
 						noalloc_get_block_write)) {
-				redirty_page:
-					redirty_page_for_writepage(mpd->wbc,
-								   page);
+				skip_page:
 					unlock_page(page);
 					continue;
 				}
@@ -2104,7 +2105,7 @@ static int mpage_da_submit_io(struct mpage_da_data *mpd,
 			block_start = 0;
 			do {
 				if (!bh)
-					goto redirty_page;
+					goto skip_page;
 				if (map && (cur_logical >= map->m_lblk) &&
 				    (cur_logical <= (map->m_lblk +
 						     (map->m_len - 1)))) {
@@ -2120,22 +2121,23 @@ static int mpage_da_submit_io(struct mpage_da_data *mpd,
 					clear_buffer_unwritten(bh);
 				}
 
-				/* redirty page if block allocation undone */
+				/* skip page if block allocation undone */
 				if (buffer_delay(bh) || buffer_unwritten(bh))
-					redirty_page = 1;
+					skip_page = 1;
 				bh = bh->b_this_page;
 				block_start += bh->b_size;
 				cur_logical++;
 				pblock++;
 			} while (bh != page_bufs);
 
-			if (redirty_page)
-				goto redirty_page;
+			if (skip_page)
+				goto skip_page;
 
 			if (commit_write)
 				/* mark the buffer_heads as dirty & uptodate */
 				block_commit_write(page, 0, len);
 
+			clear_page_dirty_for_io(page);
 			/*
 			 * Delalloc doesn't support data journalling,
 			 * but eventually maybe we'll lift this
@@ -2165,8 +2167,7 @@ static int mpage_da_submit_io(struct mpage_da_data *mpd,
 	return ret;
 }
 
-static void ext4_da_block_invalidatepages(struct mpage_da_data *mpd,
-					sector_t logical, long blk_cnt)
+static void ext4_da_block_invalidatepages(struct mpage_da_data *mpd)
 {
 	int nr_pages, i;
 	pgoff_t index, end;
@@ -2174,9 +2175,8 @@ static void ext4_da_block_invalidatepages(struct mpage_da_data *mpd,
 	struct inode *inode = mpd->inode;
 	struct address_space *mapping = inode->i_mapping;
 
-	index = logical >> (PAGE_CACHE_SHIFT - inode->i_blkbits);
-	end   = (logical + blk_cnt - 1) >>
-				(PAGE_CACHE_SHIFT - inode->i_blkbits);
+	index = mpd->first_page;
+	end   = mpd->next_page - 1;
 	while (index <= end) {
 		nr_pages = pagevec_lookup(&pvec, mapping, index, PAGEVEC_SIZE);
 		if (nr_pages == 0)
@@ -2279,9 +2279,8 @@ static void mpage_da_map_and_submit(struct mpage_da_data *mpd)
 		err = blks;
 		/*
 		 * If get block returns EAGAIN or ENOSPC and there
-		 * appears to be free blocks we will call
-		 * ext4_writepage() for all of the pages which will
-		 * just redirty the pages.
+		 * appears to be free blocks we will just let
+		 * mpage_da_submit_io() unlock all of the pages.
 		 */
 		if (err == -EAGAIN)
 			goto submit_io;
@@ -2312,8 +2311,10 @@ static void mpage_da_map_and_submit(struct mpage_da_data *mpd)
 				ext4_print_free_blocks(mpd->inode);
 		}
 		/* invalidate all the pages */
-		ext4_da_block_invalidatepages(mpd, next,
-				mpd->b_size >> mpd->inode->i_blkbits);
+		ext4_da_block_invalidatepages(mpd);
+
+		/* Mark this page range as having been completed */
+		mpd->io_done = 1;
 		return;
 	}
 	BUG_ON(blks == 0);
@@ -2438,102 +2439,6 @@ static int ext4_bh_delay_or_unwritten(handle_t *handle, struct buffer_head *bh)
 }
 
 /*
- * __mpage_da_writepage - finds extent of pages and blocks
- *
- * @page: page to consider
- * @wbc: not used, we just follow rules
- * @data: context
- *
- * The function finds extents of pages and scan them for all blocks.
- */
-static int __mpage_da_writepage(struct page *page,
-				struct writeback_control *wbc,
-				struct mpage_da_data *mpd)
-{
-	struct inode *inode = mpd->inode;
-	struct buffer_head *bh, *head;
-	sector_t logical;
-
-	/*
-	 * Can we merge this page to current extent?
-	 */
-	if (mpd->next_page != page->index) {
-		/*
-		 * Nope, we can't. So, we map non-allocated blocks
-		 * and start IO on them
-		 */
-		if (mpd->next_page != mpd->first_page) {
-			mpage_da_map_and_submit(mpd);
-			/*
-			 * skip rest of the page in the page_vec
-			 */
-			redirty_page_for_writepage(wbc, page);
-			unlock_page(page);
-			return MPAGE_DA_EXTENT_TAIL;
-		}
-
-		/*
-		 * Start next extent of pages ...
-		 */
-		mpd->first_page = page->index;
-
-		/*
-		 * ... and blocks
-		 */
-		mpd->b_size = 0;
-		mpd->b_state = 0;
-		mpd->b_blocknr = 0;
-	}
-
-	mpd->next_page = page->index + 1;
-	logical = (sector_t) page->index <<
-		  (PAGE_CACHE_SHIFT - inode->i_blkbits);
-
-	if (!page_has_buffers(page)) {
-		mpage_add_bh_to_extent(mpd, logical, PAGE_CACHE_SIZE,
-				       (1 << BH_Dirty) | (1 << BH_Uptodate));
-		if (mpd->io_done)
-			return MPAGE_DA_EXTENT_TAIL;
-	} else {
-		/*
-		 * Page with regular buffer heads, just add all dirty ones
-		 */
-		head = page_buffers(page);
-		bh = head;
-		do {
-			BUG_ON(buffer_locked(bh));
-			/*
-			 * We need to try to allocate
-			 * unmapped blocks in the same page.
-			 * Otherwise we won't make progress
-			 * with the page in ext4_writepage
-			 */
-			if (ext4_bh_delay_or_unwritten(NULL, bh)) {
-				mpage_add_bh_to_extent(mpd, logical,
-						       bh->b_size,
-						       bh->b_state);
-				if (mpd->io_done)
-					return MPAGE_DA_EXTENT_TAIL;
-			} else if (buffer_dirty(bh) && (buffer_mapped(bh))) {
-				/*
-				 * mapped dirty buffer. We need to update
-				 * the b_state because we look at
-				 * b_state in mpage_da_map_blocks. We don't
-				 * update b_size because if we find an
-				 * unmapped buffer_head later we need to
-				 * use the b_state flag of that buffer_head.
-				 */
-				if (mpd->b_size == 0)
-					mpd->b_state = bh->b_state & BH_FLAGS;
-			}
-			logical++;
-		} while ((bh = bh->b_this_page) != head);
-	}
-
-	return 0;
-}
-
-/*
  * This is a special get_blocks_t callback which is used by
  * ext4_da_write_begin().  It will either return mapped block or
  * reserve space for a single block.
@@ -2597,7 +2502,6 @@ static int ext4_da_get_block_prep(struct inode *inode, sector_t iblock,
 		 * for partial write.
 		 */
 		set_buffer_new(bh);
-		set_buffer_mapped(bh);
 	}
 	return 0;
 }
@@ -2684,7 +2588,7 @@ static void ext4_end_io_buffer_write(struct buffer_head *bh, int uptodate);
  * because we should have holes filled from ext4_page_mkwrite(). We even don't
  * need to file the inode to the transaction's list in ordered mode because if
  * we are writing back data added by write(), the inode is already there and if
- * we are writing back data modified via mmap(), noone guarantees in which
+ * we are writing back data modified via mmap(), no one guarantees in which
  * transaction the data will hit the disk. In case we are journaling data, we
  * cannot start transaction directly because transaction start ranks above page
  * lock so we have to do some magic.
@@ -2786,7 +2690,7 @@ static int ext4_writepage(struct page *page,
 
 /*
  * This is called via ext4_da_writepages() to
- * calulate the total number of credits to reserve to fit
+ * calculate the total number of credits to reserve to fit
  * a single extent allocation into a single transaction,
  * ext4_da_writpeages() will loop calling this before
  * the block allocation.
@@ -2811,27 +2715,27 @@ static int ext4_da_writepages_trans_blocks(struct inode *inode)
 
 /*
  * write_cache_pages_da - walk the list of dirty pages of the given
- * address space and call the callback function (which usually writes
- * the pages).
- *
- * This is a forked version of write_cache_pages().  Differences:
- *	Range cyclic is ignored.
- *	no_nrwrite_index_update is always presumed true
+ * address space and accumulate pages that need writing, and call
+ * mpage_da_map_and_submit to map a single contiguous memory region
+ * and then write them.
  */
 static int write_cache_pages_da(struct address_space *mapping,
 				struct writeback_control *wbc,
 				struct mpage_da_data *mpd,
 				pgoff_t *done_index)
 {
-	int ret = 0;
-	int done = 0;
-	struct pagevec pvec;
-	unsigned nr_pages;
-	pgoff_t index;
-	pgoff_t end;		/* Inclusive */
-	long nr_to_write = wbc->nr_to_write;
-	int tag;
-
+	struct buffer_head	*bh, *head;
+	struct inode		*inode = mapping->host;
+	struct pagevec		pvec;
+	unsigned int		nr_pages;
+	sector_t		logical;
+	pgoff_t			index, end;
+	long			nr_to_write = wbc->nr_to_write;
+	int			i, tag, ret = 0;
+
+	memset(mpd, 0, sizeof(struct mpage_da_data));
+	mpd->wbc = wbc;
+	mpd->inode = inode;
 	pagevec_init(&pvec, 0);
 	index = wbc->range_start >> PAGE_CACHE_SHIFT;
 	end = wbc->range_end >> PAGE_CACHE_SHIFT;
@@ -2842,13 +2746,11 @@ static int write_cache_pages_da(struct address_space *mapping,
 		tag = PAGECACHE_TAG_DIRTY;
 
 	*done_index = index;
-	while (!done && (index <= end)) {
-		int i;
-
+	while (index <= end) {
 		nr_pages = pagevec_lookup_tag(&pvec, mapping, &index, tag,
 			      min(end - index, (pgoff_t)PAGEVEC_SIZE-1) + 1);
 		if (nr_pages == 0)
-			break;
+			return 0;
 
 		for (i = 0; i < nr_pages; i++) {
 			struct page *page = pvec.pages[i];
@@ -2860,60 +2762,100 @@ static int write_cache_pages_da(struct address_space *mapping,
 			 * mapping. However, page->index will not change
 			 * because we have a reference on the page.
 			 */
-			if (page->index > end) {
-				done = 1;
-				break;
-			}
+			if (page->index > end)
+				goto out;
 
 			*done_index = page->index + 1;
 
+			/*
+			 * If we can't merge this page, and we have
+			 * accumulated an contiguous region, write it
+			 */
+			if ((mpd->next_page != page->index) &&
+			    (mpd->next_page != mpd->first_page)) {
+				mpage_da_map_and_submit(mpd);
+				goto ret_extent_tail;
+			}
+
 			lock_page(page);
 
 			/*
-			 * Page truncated or invalidated. We can freely skip it
-			 * then, even for data integrity operations: the page
-			 * has disappeared concurrently, so there could be no
-			 * real expectation of this data interity operation
-			 * even if there is now a new, dirty page at the same
-			 * pagecache address.
+			 * If the page is no longer dirty, or its
+			 * mapping no longer corresponds to inode we
+			 * are writing (which means it has been
+			 * truncated or invalidated), or the page is
+			 * already under writeback and we are not
+			 * doing a data integrity writeback, skip the page
 			 */
-			if (unlikely(page->mapping != mapping)) {
-continue_unlock:
+			if (!PageDirty(page) ||
+			    (PageWriteback(page) &&
+			     (wbc->sync_mode == WB_SYNC_NONE)) ||
+			    unlikely(page->mapping != mapping)) {
 				unlock_page(page);
 				continue;
 			}
 
-			if (!PageDirty(page)) {
-				/* someone wrote it for us */
-				goto continue_unlock;
-			}
-
-			if (PageWriteback(page)) {
-				if (wbc->sync_mode != WB_SYNC_NONE)
-					wait_on_page_writeback(page);
-				else
-					goto continue_unlock;
-			}
+			if (PageWriteback(page))
+				wait_on_page_writeback(page);
 
 			BUG_ON(PageWriteback(page));
-			if (!clear_page_dirty_for_io(page))
-				goto continue_unlock;
 
-			ret = __mpage_da_writepage(page, wbc, mpd);
-			if (unlikely(ret)) {
-				if (ret == AOP_WRITEPAGE_ACTIVATE) {
-					unlock_page(page);
-					ret = 0;
-				} else {
-					done = 1;
-					break;
-				}
+			if (mpd->next_page != page->index)
+				mpd->first_page = page->index;
+			mpd->next_page = page->index + 1;
+			logical = (sector_t) page->index <<
+				(PAGE_CACHE_SHIFT - inode->i_blkbits);
+
+			if (!page_has_buffers(page)) {
+				mpage_add_bh_to_extent(mpd, logical,
+						       PAGE_CACHE_SIZE,
+						       (1 << BH_Dirty) | (1 << BH_Uptodate));
+				if (mpd->io_done)
+					goto ret_extent_tail;
+			} else {
+				/*
+				 * Page with regular buffer heads,
+				 * just add all dirty ones
+				 */
+				head = page_buffers(page);
+				bh = head;
+				do {
+					BUG_ON(buffer_locked(bh));
+					/*
+					 * We need to try to allocate
+					 * unmapped blocks in the same page.
+					 * Otherwise we won't make progress
+					 * with the page in ext4_writepage
+					 */
+					if (ext4_bh_delay_or_unwritten(NULL, bh)) {
+						mpage_add_bh_to_extent(mpd, logical,
+								       bh->b_size,
+								       bh->b_state);
+						if (mpd->io_done)
+							goto ret_extent_tail;
+					} else if (buffer_dirty(bh) && (buffer_mapped(bh))) {
+						/*
+						 * mapped dirty buffer. We need
+						 * to update the b_state
+						 * because we look at b_state
+						 * in mpage_da_map_blocks.  We
+						 * don't update b_size because
+						 * if we find an unmapped
+						 * buffer_head later we need to
+						 * use the b_state flag of that
+						 * buffer_head.
+						 */
+						if (mpd->b_size == 0)
+							mpd->b_state = bh->b_state & BH_FLAGS;
+					}
+					logical++;
+				} while ((bh = bh->b_this_page) != head);
 			}
 
 			if (nr_to_write > 0) {
 				nr_to_write--;
 				if (nr_to_write == 0 &&
-				    wbc->sync_mode == WB_SYNC_NONE) {
+				    wbc->sync_mode == WB_SYNC_NONE)
 					/*
 					 * We stop writing back only if we are
 					 * not doing integrity sync. In case of
@@ -2924,14 +2866,18 @@ continue_unlock:
 					 * pages, but have not synced all of the
 					 * old dirty pages.
 					 */
-					done = 1;
-					break;
-				}
+					goto out;
 			}
 		}
 		pagevec_release(&pvec);
 		cond_resched();
 	}
+	return 0;
+ret_extent_tail:
+	ret = MPAGE_DA_EXTENT_TAIL;
+out:
+	pagevec_release(&pvec);
+	cond_resched();
 	return ret;
 }
 
@@ -2945,7 +2891,6 @@ static int ext4_da_writepages(struct address_space *mapping,
 	struct mpage_da_data mpd;
 	struct inode *inode = mapping->host;
 	int pages_written = 0;
-	long pages_skipped;
 	unsigned int max_pages;
 	int range_cyclic, cycled = 1, io_done = 0;
 	int needed_blocks, ret = 0;
@@ -3028,11 +2973,6 @@ static int ext4_da_writepages(struct address_space *mapping,
 		wbc->nr_to_write = desired_nr_to_write;
 	}
 
-	mpd.wbc = wbc;
-	mpd.inode = mapping->host;
-
-	pages_skipped = wbc->pages_skipped;
-
 retry:
 	if (wbc->sync_mode == WB_SYNC_ALL)
 		tag_pages_for_writeback(mapping, index, end);
@@ -3059,22 +2999,10 @@ retry:
 		}
 
 		/*
-		 * Now call __mpage_da_writepage to find the next
+		 * Now call write_cache_pages_da() to find the next
 		 * contiguous region of logical blocks that need
-		 * blocks to be allocated by ext4.  We don't actually
-		 * submit the blocks for I/O here, even though
-		 * write_cache_pages thinks it will, and will set the
-		 * pages as clean for write before calling
-		 * __mpage_da_writepage().
+		 * blocks to be allocated by ext4 and submit them.
 		 */
-		mpd.b_size = 0;
-		mpd.b_state = 0;
-		mpd.b_blocknr = 0;
-		mpd.first_page = 0;
-		mpd.next_page = 0;
-		mpd.io_done = 0;
-		mpd.pages_written = 0;
-		mpd.retval = 0;
 		ret = write_cache_pages_da(mapping, wbc, &mpd, &done_index);
 		/*
 		 * If we have a contiguous extent of pages and we
@@ -3096,7 +3024,6 @@ retry:
 			 * and try again
 			 */
 			jbd2_journal_force_commit_nested(sbi->s_journal);
-			wbc->pages_skipped = pages_skipped;
 			ret = 0;
 		} else if (ret == MPAGE_DA_EXTENT_TAIL) {
 			/*
@@ -3104,7 +3031,6 @@ retry:
 			 * rest of the pages
 			 */
 			pages_written += mpd.pages_written;
-			wbc->pages_skipped = pages_skipped;
 			ret = 0;
 			io_done = 1;
 		} else if (wbc->nr_to_write)
@@ -3122,11 +3048,6 @@ retry:
 		wbc->range_end  = mapping->writeback_index - 1;
 		goto retry;
 	}
-	if (pages_skipped != wbc->pages_skipped)
-		ext4_msg(inode->i_sb, KERN_CRIT,
-			 "This should not happen leaving %s "
-			 "with nr_to_write = %ld ret = %d",
-			 __func__, wbc->nr_to_write, ret);
 
 	/* Update index */
 	wbc->range_cyclic = range_cyclic;
@@ -3383,7 +3304,7 @@ int ext4_alloc_da_blocks(struct inode *inode)
 	 * the pages by calling redirty_page_for_writepage() but that
 	 * would be ugly in the extreme.  So instead we would need to
 	 * replicate parts of the code in the above functions,
-	 * simplifying them becuase we wouldn't actually intend to
+	 * simplifying them because we wouldn't actually intend to
 	 * write out the pages, but rather only collect contiguous
 	 * logical block extents, call the multi-block allocator, and
 	 * then update the buffer heads with the block allocations.
@@ -3460,6 +3381,7 @@ static sector_t ext4_bmap(struct address_space *mapping, sector_t block)
 
 static int ext4_readpage(struct file *file, struct page *page)
 {
+	trace_ext4_readpage(page);
 	return mpage_readpage(page, ext4_get_block);
 }
 
@@ -3494,6 +3416,8 @@ static void ext4_invalidatepage(struct page *page, unsigned long offset)
 {
 	journal_t *journal = EXT4_JOURNAL(page->mapping->host);
 
+	trace_ext4_invalidatepage(page, offset);
+
 	/*
 	 * free any io_end structure allocated for buffers to be discarded
 	 */
@@ -3515,6 +3439,8 @@ static int ext4_releasepage(struct page *page, gfp_t wait)
 {
 	journal_t *journal = EXT4_JOURNAL(page->mapping->host);
 
+	trace_ext4_releasepage(page);
+
 	WARN_ON(PageChecked(page));
 	if (!page_has_buffers(page))
 		return 0;
@@ -3768,7 +3694,7 @@ retry:
  *
  * The unwrritten extents will be converted to written when DIO is completed.
  * For async direct IO, since the IO may still pending when return, we
- * set up an end_io call back function, which will do the convertion
+ * set up an end_io call back function, which will do the conversion
  * when async direct IO completed.
  *
  * If the O_DIRECT write will extend the file then add this inode to the
@@ -3791,7 +3717,7 @@ static ssize_t ext4_ext_direct_IO(int rw, struct kiocb *iocb,
  		 * We could direct write to holes and fallocate.
 		 *
  		 * Allocated blocks to fill the hole are marked as uninitialized
- 		 * to prevent paralel buffered read to expose the stale data
+ 		 * to prevent parallel buffered read to expose the stale data
  		 * before DIO complete the data IO.
 		 *
  		 * As to previously fallocated extents, ext4 get_block
@@ -3852,7 +3778,7 @@ static ssize_t ext4_ext_direct_IO(int rw, struct kiocb *iocb,
 			int err;
 			/*
 			 * for non AIO case, since the IO is already
-			 * completed, we could do the convertion right here
+			 * completed, we could do the conversion right here
 			 */
 			err = ext4_convert_unwritten_extents(inode,
 							     offset, ret);
@@ -3873,11 +3799,16 @@ static ssize_t ext4_direct_IO(int rw, struct kiocb *iocb,
 {
 	struct file *file = iocb->ki_filp;
 	struct inode *inode = file->f_mapping->host;
+	ssize_t ret;
 
+	trace_ext4_direct_IO_enter(inode, offset, iov_length(iov, nr_segs), rw);
 	if (ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS))
-		return ext4_ext_direct_IO(rw, iocb, iov, offset, nr_segs);
-
-	return ext4_ind_direct_IO(rw, iocb, iov, offset, nr_segs);
+		ret = ext4_ext_direct_IO(rw, iocb, iov, offset, nr_segs);
+	else
+		ret = ext4_ind_direct_IO(rw, iocb, iov, offset, nr_segs);
+	trace_ext4_direct_IO_exit(inode, offset,
+				iov_length(iov, nr_segs), rw, ret);
+	return ret;
 }
 
 /*
@@ -4094,7 +4025,7 @@ static inline int all_zeroes(__le32 *p, __le32 *q)
  *
  *	When we do truncate() we may have to clean the ends of several
  *	indirect blocks but leave the blocks themselves alive. Block is
- *	partially truncated if some data below the new i_size is refered
+ *	partially truncated if some data below the new i_size is referred
  *	from it (and it is on the path to the first completely truncated
  *	data block, indeed).  We have to free the top of that path along
  *	with everything to the right of the path. Since no allocation
@@ -4173,6 +4104,9 @@ no_top:
  *
  * We release `count' blocks on disk, but (last - first) may be greater
  * than `count' because there can be holes in there.
+ *
+ * Return 0 on success, 1 on invalid block range
+ * and < 0 on fatal error.
  */
 static int ext4_clear_blocks(handle_t *handle, struct inode *inode,
 			     struct buffer_head *bh,
@@ -4199,33 +4133,32 @@ static int ext4_clear_blocks(handle_t *handle, struct inode *inode,
 		if (bh) {
 			BUFFER_TRACE(bh, "call ext4_handle_dirty_metadata");
 			err = ext4_handle_dirty_metadata(handle, inode, bh);
-			if (unlikely(err)) {
-				ext4_std_error(inode->i_sb, err);
-				return 1;
-			}
+			if (unlikely(err))
+				goto out_err;
 		}
 		err = ext4_mark_inode_dirty(handle, inode);
-		if (unlikely(err)) {
-			ext4_std_error(inode->i_sb, err);
-			return 1;
-		}
+		if (unlikely(err))
+			goto out_err;
 		err = ext4_truncate_restart_trans(handle, inode,
 						  blocks_for_truncate(inode));
-		if (unlikely(err)) {
-			ext4_std_error(inode->i_sb, err);
-			return 1;
-		}
+		if (unlikely(err))
+			goto out_err;
 		if (bh) {
 			BUFFER_TRACE(bh, "retaking write access");
-			ext4_journal_get_write_access(handle, bh);
+			err = ext4_journal_get_write_access(handle, bh);
+			if (unlikely(err))
+				goto out_err;
 		}
 	}
 
 	for (p = first; p < last; p++)
 		*p = 0;
 
-	ext4_free_blocks(handle, inode, 0, block_to_free, count, flags);
+	ext4_free_blocks(handle, inode, NULL, block_to_free, count, flags);
 	return 0;
+out_err:
+	ext4_std_error(inode->i_sb, err);
+	return err;
 }
 
 /**
@@ -4236,7 +4169,7 @@ static int ext4_clear_blocks(handle_t *handle, struct inode *inode,
  * @first:	array of block numbers
  * @last:	points immediately past the end of array
  *
- * We are freeing all blocks refered from that array (numbers are stored as
+ * We are freeing all blocks referred from that array (numbers are stored as
  * little-endian 32-bit) and updating @inode->i_blocks appropriately.
  *
  * We accumulate contiguous runs of blocks to free.  Conveniently, if these
@@ -4259,7 +4192,7 @@ static void ext4_free_data(handle_t *handle, struct inode *inode,
 	ext4_fsblk_t nr;		    /* Current block # */
 	__le32 *p;			    /* Pointer into inode/ind
 					       for current block */
-	int err;
+	int err = 0;
 
 	if (this_bh) {				/* For indirect block */
 		BUFFER_TRACE(this_bh, "get_write_access");
@@ -4281,9 +4214,10 @@ static void ext4_free_data(handle_t *handle, struct inode *inode,
 			} else if (nr == block_to_free + count) {
 				count++;
 			} else {
-				if (ext4_clear_blocks(handle, inode, this_bh,
-						      block_to_free, count,
-						      block_to_free_p, p))
+				err = ext4_clear_blocks(handle, inode, this_bh,
+						        block_to_free, count,
+						        block_to_free_p, p);
+				if (err)
 					break;
 				block_to_free = nr;
 				block_to_free_p = p;
@@ -4292,9 +4226,12 @@ static void ext4_free_data(handle_t *handle, struct inode *inode,
 		}
 	}
 
-	if (count > 0)
-		ext4_clear_blocks(handle, inode, this_bh, block_to_free,
-				  count, block_to_free_p, p);
+	if (!err && count > 0)
+		err = ext4_clear_blocks(handle, inode, this_bh, block_to_free,
+					count, block_to_free_p, p);
+	if (err < 0)
+		/* fatal error */
+		return;
 
 	if (this_bh) {
 		BUFFER_TRACE(this_bh, "call ext4_handle_dirty_metadata");
@@ -4324,7 +4261,7 @@ static void ext4_free_data(handle_t *handle, struct inode *inode,
  *	@last:	pointer immediately past the end of array
  *	@depth:	depth of the branches to free
  *
- *	We are freeing all blocks refered from these branches (numbers are
+ *	We are freeing all blocks referred from these branches (numbers are
  *	stored as little-endian 32-bit) and updating @inode->i_blocks
  *	appropriately.
  */
@@ -4412,7 +4349,7 @@ static void ext4_free_branches(handle_t *handle, struct inode *inode,
 			 * transaction where the data blocks are
 			 * actually freed.
 			 */
-			ext4_free_blocks(handle, inode, 0, nr, 1,
+			ext4_free_blocks(handle, inode, NULL, nr, 1,
 					 EXT4_FREE_BLOCKS_METADATA|
 					 EXT4_FREE_BLOCKS_FORGET);
 
@@ -4496,6 +4433,8 @@ void ext4_truncate(struct inode *inode)
 	ext4_lblk_t last_block;
 	unsigned blocksize = inode->i_sb->s_blocksize;
 
+	trace_ext4_truncate_enter(inode);
+
 	if (!ext4_can_truncate(inode))
 		return;
 
@@ -4506,6 +4445,7 @@ void ext4_truncate(struct inode *inode)
 
 	if (ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS)) {
 		ext4_ext_truncate(inode);
+		trace_ext4_truncate_exit(inode);
 		return;
 	}
 
@@ -4635,6 +4575,7 @@ out_stop:
 		ext4_orphan_del(handle, inode);
 
 	ext4_journal_stop(handle);
+	trace_ext4_truncate_exit(inode);
 }
 
 /*
@@ -4766,6 +4707,7 @@ make_io:
 		 * has in-inode xattrs, or we don't have this inode in memory.
 		 * Read the block from disk.
 		 */
+		trace_ext4_load_inode(inode);
 		get_bh(bh);
 		bh->b_end_io = end_buffer_read_sync;
 		submit_bh(READ_META, bh);
@@ -4871,7 +4813,7 @@ struct inode *ext4_iget(struct super_block *sb, unsigned long ino)
 		return inode;
 
 	ei = EXT4_I(inode);
-	iloc.bh = 0;
+	iloc.bh = NULL;
 
 	ret = __ext4_get_inode_loc(inode, &iloc, 0);
 	if (ret < 0)
@@ -5536,7 +5478,7 @@ static int ext4_meta_trans_blocks(struct inode *inode, int nrblocks, int chunk)
 }
 
 /*
- * Calulate the total number of credits to reserve to fit
+ * Calculate the total number of credits to reserve to fit
  * the modification of a single pages into a single transaction,
  * which may include multiple chunks of block allocations.
  *
diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c
index a84faa110bcd..808c554e773f 100644
--- a/fs/ext4/ioctl.c
+++ b/fs/ext4/ioctl.c
@@ -334,16 +334,22 @@ mext_out:
 	case FITRIM:
 	{
 		struct super_block *sb = inode->i_sb;
+		struct request_queue *q = bdev_get_queue(sb->s_bdev);
 		struct fstrim_range range;
 		int ret = 0;
 
 		if (!capable(CAP_SYS_ADMIN))
 			return -EPERM;
 
+		if (!blk_queue_discard(q))
+			return -EOPNOTSUPP;
+
 		if (copy_from_user(&range, (struct fstrim_range *)arg,
 		    sizeof(range)))
 			return -EFAULT;
 
+		range.minlen = max((unsigned int)range.minlen,
+				   q->limits.discard_granularity);
 		ret = ext4_trim_fs(sb, &range);
 		if (ret < 0)
 			return ret;
@@ -421,6 +427,7 @@ long ext4_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 		return err;
 	}
 	case EXT4_IOC_MOVE_EXT:
+	case FITRIM:
 		break;
 	default:
 		return -ENOIOCTLCMD;
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index d1fe09aea73d..d8a16eecf1d5 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -92,7 +92,7 @@
  * between CPUs. It is possible to get scheduled at this point.
  *
  * The locality group prealloc space is used looking at whether we have
- * enough free space (pa_free) withing the prealloc space.
+ * enough free space (pa_free) within the prealloc space.
  *
  * If we can't allocate blocks via inode prealloc or/and locality group
  * prealloc then we look at the buddy cache. The buddy cache is represented
@@ -432,9 +432,10 @@ static void *mb_find_buddy(struct ext4_buddy *e4b, int order, int *max)
 	}
 
 	/* at order 0 we see each particular block */
-	*max = 1 << (e4b->bd_blkbits + 3);
-	if (order == 0)
+	if (order == 0) {
+		*max = 1 << (e4b->bd_blkbits + 3);
 		return EXT4_MB_BITMAP(e4b);
+	}
 
 	bb = EXT4_MB_BUDDY(e4b) + EXT4_SB(e4b->bd_sb)->s_mb_offsets[order];
 	*max = EXT4_SB(e4b->bd_sb)->s_mb_maxs[order];
@@ -616,7 +617,6 @@ static int __mb_check_buddy(struct ext4_buddy *e4b, char *file,
 	MB_CHECK_ASSERT(e4b->bd_info->bb_fragments == fragments);
 
 	grp = ext4_get_group_info(sb, e4b->bd_group);
-	buddy = mb_find_buddy(e4b, 0, &max);
 	list_for_each(cur, &grp->bb_prealloc_list) {
 		ext4_group_t groupnr;
 		struct ext4_prealloc_space *pa;
@@ -635,7 +635,12 @@ static int __mb_check_buddy(struct ext4_buddy *e4b, char *file,
 #define mb_check_buddy(e4b)
 #endif
 
-/* FIXME!! need more doc */
+/*
+ * Divide blocks started from @first with length @len into
+ * smaller chunks with power of 2 blocks.
+ * Clear the bits in bitmap which the blocks of the chunk(s) covered,
+ * then increase bb_counters[] for corresponded chunk size.
+ */
 static void ext4_mb_mark_free_simple(struct super_block *sb,
 				void *buddy, ext4_grpblk_t first, ext4_grpblk_t len,
 					struct ext4_group_info *grp)
@@ -2381,7 +2386,7 @@ static int ext4_mb_init_backend(struct super_block *sb)
 	/* An 8TB filesystem with 64-bit pointers requires a 4096 byte
 	 * kmalloc. A 128kb malloc should suffice for a 256TB filesystem.
 	 * So a two level scheme suffices for now. */
-	sbi->s_group_info = kmalloc(array_size, GFP_KERNEL);
+	sbi->s_group_info = kzalloc(array_size, GFP_KERNEL);
 	if (sbi->s_group_info == NULL) {
 		printk(KERN_ERR "EXT4-fs: can't allocate buddy meta group\n");
 		return -ENOMEM;
@@ -3208,7 +3213,7 @@ ext4_mb_check_group_pa(ext4_fsblk_t goal_block,
 	cur_distance = abs(goal_block - cpa->pa_pstart);
 	new_distance = abs(goal_block - pa->pa_pstart);
 
-	if (cur_distance < new_distance)
+	if (cur_distance <= new_distance)
 		return cpa;
 
 	/* drop the previous reference */
@@ -3907,7 +3912,8 @@ static void ext4_mb_show_ac(struct ext4_allocation_context *ac)
 	struct super_block *sb = ac->ac_sb;
 	ext4_group_t ngroups, i;
 
-	if (EXT4_SB(sb)->s_mount_flags & EXT4_MF_FS_ABORTED)
+	if (!mb_enable_debug ||
+	    (EXT4_SB(sb)->s_mount_flags & EXT4_MF_FS_ABORTED))
 		return;
 
 	printk(KERN_ERR "EXT4-fs: Can't allocate:"
@@ -4753,7 +4759,8 @@ static int ext4_trim_extent(struct super_block *sb, int start, int count,
  * bitmap. Then issue a TRIM command on this extent and free the extent in
  * the group buddy bitmap. This is done until whole group is scanned.
  */
-ext4_grpblk_t ext4_trim_all_free(struct super_block *sb, struct ext4_buddy *e4b,
+static ext4_grpblk_t
+ext4_trim_all_free(struct super_block *sb, struct ext4_buddy *e4b,
 		ext4_grpblk_t start, ext4_grpblk_t max, ext4_grpblk_t minblocks)
 {
 	void *bitmap;
@@ -4863,10 +4870,15 @@ int ext4_trim_fs(struct super_block *sb, struct fstrim_range *range)
 			break;
 		}
 
-		if (len >= EXT4_BLOCKS_PER_GROUP(sb))
-			len -= (EXT4_BLOCKS_PER_GROUP(sb) - first_block);
-		else
+		/*
+		 * For all the groups except the last one, last block will
+		 * always be EXT4_BLOCKS_PER_GROUP(sb), so we only need to
+		 * change it for the last group in which case start +
+		 * len < EXT4_BLOCKS_PER_GROUP(sb).
+		 */
+		if (first_block + len < EXT4_BLOCKS_PER_GROUP(sb))
 			last_block = first_block + len;
+		len -= last_block - first_block;
 
 		if (e4b.bd_info->bb_free >= minlen) {
 			cnt = ext4_trim_all_free(sb, &e4b, first_block,
diff --git a/fs/ext4/mballoc.h b/fs/ext4/mballoc.h
index b619322c76f0..22bd4d7f289b 100644
--- a/fs/ext4/mballoc.h
+++ b/fs/ext4/mballoc.h
@@ -169,7 +169,7 @@ struct ext4_allocation_context {
 	/* original request */
 	struct ext4_free_extent ac_o_ex;
 
-	/* goal request (after normalization) */
+	/* goal request (normalized ac_o_ex) */
 	struct ext4_free_extent ac_g_ex;
 
 	/* the best found extent */
diff --git a/fs/ext4/migrate.c b/fs/ext4/migrate.c
index b0a126f23c20..92816b4e0f16 100644
--- a/fs/ext4/migrate.c
+++ b/fs/ext4/migrate.c
@@ -263,7 +263,7 @@ static int free_dind_blocks(handle_t *handle,
 	for (i = 0; i < max_entries; i++) {
 		if (tmp_idata[i]) {
 			extend_credit_for_blkdel(handle, inode);
-			ext4_free_blocks(handle, inode, 0,
+			ext4_free_blocks(handle, inode, NULL,
 					 le32_to_cpu(tmp_idata[i]), 1,
 					 EXT4_FREE_BLOCKS_METADATA |
 					 EXT4_FREE_BLOCKS_FORGET);
@@ -271,7 +271,7 @@ static int free_dind_blocks(handle_t *handle,
 	}
 	put_bh(bh);
 	extend_credit_for_blkdel(handle, inode);
-	ext4_free_blocks(handle, inode, 0, le32_to_cpu(i_data), 1,
+	ext4_free_blocks(handle, inode, NULL, le32_to_cpu(i_data), 1,
 			 EXT4_FREE_BLOCKS_METADATA |
 			 EXT4_FREE_BLOCKS_FORGET);
 	return 0;
@@ -302,7 +302,7 @@ static int free_tind_blocks(handle_t *handle,
 	}
 	put_bh(bh);
 	extend_credit_for_blkdel(handle, inode);
-	ext4_free_blocks(handle, inode, 0, le32_to_cpu(i_data), 1,
+	ext4_free_blocks(handle, inode, NULL, le32_to_cpu(i_data), 1,
 			 EXT4_FREE_BLOCKS_METADATA |
 			 EXT4_FREE_BLOCKS_FORGET);
 	return 0;
@@ -315,7 +315,7 @@ static int free_ind_block(handle_t *handle, struct inode *inode, __le32 *i_data)
 	/* ei->i_data[EXT4_IND_BLOCK] */
 	if (i_data[0]) {
 		extend_credit_for_blkdel(handle, inode);
-		ext4_free_blocks(handle, inode, 0,
+		ext4_free_blocks(handle, inode, NULL,
 				le32_to_cpu(i_data[0]), 1,
 				 EXT4_FREE_BLOCKS_METADATA |
 				 EXT4_FREE_BLOCKS_FORGET);
@@ -428,7 +428,7 @@ static int free_ext_idx(handle_t *handle, struct inode *inode,
 	}
 	put_bh(bh);
 	extend_credit_for_blkdel(handle, inode);
-	ext4_free_blocks(handle, inode, 0, block, 1,
+	ext4_free_blocks(handle, inode, NULL, block, 1,
 			 EXT4_FREE_BLOCKS_METADATA | EXT4_FREE_BLOCKS_FORGET);
 	return retval;
 }
@@ -517,7 +517,7 @@ int ext4_ext_migrate(struct inode *inode)
 	 * start with one credit accounted for
 	 * superblock modification.
 	 *
-	 * For the tmp_inode we already have commited the
+	 * For the tmp_inode we already have committed the
 	 * trascation that created the inode. Later as and
 	 * when we add extents we extent the journal
 	 */
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index e781b7ea5630..67fd0b025858 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -40,6 +40,7 @@
 #include "xattr.h"
 #include "acl.h"
 
+#include <trace/events/ext4.h>
 /*
  * define how far ahead to read directories while searching them.
  */
@@ -2183,6 +2184,7 @@ static int ext4_unlink(struct inode *dir, struct dentry *dentry)
 	struct ext4_dir_entry_2 *de;
 	handle_t *handle;
 
+	trace_ext4_unlink_enter(dir, dentry);
 	/* Initialize quotas before so that eventual writes go
 	 * in separate transaction */
 	dquot_initialize(dir);
@@ -2228,6 +2230,7 @@ static int ext4_unlink(struct inode *dir, struct dentry *dentry)
 end_unlink:
 	ext4_journal_stop(handle);
 	brelse(bh);
+	trace_ext4_unlink_exit(dentry, retval);
 	return retval;
 }
 
@@ -2402,6 +2405,10 @@ static int ext4_rename(struct inode *old_dir, struct dentry *old_dentry,
 		if (!new_inode && new_dir != old_dir &&
 		    EXT4_DIR_LINK_MAX(new_dir))
 			goto end_rename;
+		BUFFER_TRACE(dir_bh, "get_write_access");
+		retval = ext4_journal_get_write_access(handle, dir_bh);
+		if (retval)
+			goto end_rename;
 	}
 	if (!new_bh) {
 		retval = ext4_add_entry(handle, new_dentry, old_inode);
@@ -2409,7 +2416,9 @@ static int ext4_rename(struct inode *old_dir, struct dentry *old_dentry,
 			goto end_rename;
 	} else {
 		BUFFER_TRACE(new_bh, "get write access");
-		ext4_journal_get_write_access(handle, new_bh);
+		retval = ext4_journal_get_write_access(handle, new_bh);
+		if (retval)
+			goto end_rename;
 		new_de->inode = cpu_to_le32(old_inode->i_ino);
 		if (EXT4_HAS_INCOMPAT_FEATURE(new_dir->i_sb,
 					      EXT4_FEATURE_INCOMPAT_FILETYPE))
@@ -2470,8 +2479,6 @@ static int ext4_rename(struct inode *old_dir, struct dentry *old_dentry,
 	old_dir->i_ctime = old_dir->i_mtime = ext4_current_time(old_dir);
 	ext4_update_dx_flag(old_dir);
 	if (dir_bh) {
-		BUFFER_TRACE(dir_bh, "get_write_access");
-		ext4_journal_get_write_access(handle, dir_bh);
 		PARENT_INO(dir_bh->b_data, new_dir->i_sb->s_blocksize) =
 						cpu_to_le32(new_dir->i_ino);
 		BUFFER_TRACE(dir_bh, "call ext4_handle_dirty_metadata");
diff --git a/fs/ext4/page-io.c b/fs/ext4/page-io.c
index e2cd90e4bb7c..b6dbd056fcb1 100644
--- a/fs/ext4/page-io.c
+++ b/fs/ext4/page-io.c
@@ -259,6 +259,11 @@ static void ext4_end_bio(struct bio *bio, int error)
 			     bi_sector >> (inode->i_blkbits - 9));
 	}
 
+	if (!(io_end->flag & EXT4_IO_END_UNWRITTEN)) {
+		ext4_free_io_end(io_end);
+		return;
+	}
+
 	/* Add the io_end to per-inode completed io list*/
 	spin_lock_irqsave(&EXT4_I(inode)->i_completed_io_lock, flags);
 	list_add_tail(&io_end->list, &EXT4_I(inode)->i_completed_io_list);
@@ -279,9 +284,9 @@ void ext4_io_submit(struct ext4_io_submit *io)
 		BUG_ON(bio_flagged(io->io_bio, BIO_EOPNOTSUPP));
 		bio_put(io->io_bio);
 	}
-	io->io_bio = 0;
+	io->io_bio = NULL;
 	io->io_op = 0;
-	io->io_end = 0;
+	io->io_end = NULL;
 }
 
 static int io_submit_init(struct ext4_io_submit *io,
@@ -380,8 +385,6 @@ int ext4_bio_write_page(struct ext4_io_submit *io,
 
 	BUG_ON(!PageLocked(page));
 	BUG_ON(PageWriteback(page));
-	set_page_writeback(page);
-	ClearPageError(page);
 
 	io_page = kmem_cache_alloc(io_page_cachep, GFP_NOFS);
 	if (!io_page) {
@@ -392,6 +395,8 @@ int ext4_bio_write_page(struct ext4_io_submit *io,
 	io_page->p_page = page;
 	atomic_set(&io_page->p_count, 1);
 	get_page(page);
+	set_page_writeback(page);
+	ClearPageError(page);
 
 	for (bh = head = page_buffers(page), block_start = 0;
 	     bh != head || !block_start;
diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
index 3ecc6e45d2f9..80bbc9c60c24 100644
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -230,7 +230,7 @@ static int setup_new_group_blocks(struct super_block *sb,
 	}
 
 	/* Zero out all of the reserved backup group descriptor table blocks */
-	ext4_debug("clear inode table blocks %#04llx -> %#04llx\n",
+	ext4_debug("clear inode table blocks %#04llx -> %#04lx\n",
 			block, sbi->s_itb_per_group);
 	err = sb_issue_zeroout(sb, gdblocks + start + 1, reserved_gdb,
 			       GFP_NOFS);
@@ -248,7 +248,7 @@ static int setup_new_group_blocks(struct super_block *sb,
 
 	/* Zero out all of the inode table blocks */
 	block = input->inode_table;
-	ext4_debug("clear inode table blocks %#04llx -> %#04llx\n",
+	ext4_debug("clear inode table blocks %#04llx -> %#04lx\n",
 			block, sbi->s_itb_per_group);
 	err = sb_issue_zeroout(sb, block, sbi->s_itb_per_group, GFP_NOFS);
 	if (err)
@@ -499,12 +499,12 @@ static int add_new_gdb(handle_t *handle, struct inode *inode,
 	return err;
 
 exit_inode:
-	/* ext4_journal_release_buffer(handle, iloc.bh); */
+	/* ext4_handle_release_buffer(handle, iloc.bh); */
 	brelse(iloc.bh);
 exit_dindj:
-	/* ext4_journal_release_buffer(handle, dind); */
+	/* ext4_handle_release_buffer(handle, dind); */
 exit_sbh:
-	/* ext4_journal_release_buffer(handle, EXT4_SB(sb)->s_sbh); */
+	/* ext4_handle_release_buffer(handle, EXT4_SB(sb)->s_sbh); */
 exit_dind:
 	brelse(dind);
 exit_bh:
@@ -586,7 +586,7 @@ static int reserve_backup_gdb(handle_t *handle, struct inode *inode,
 			/*
 			int j;
 			for (j = 0; j < i; j++)
-				ext4_journal_release_buffer(handle, primary[j]);
+				ext4_handle_release_buffer(handle, primary[j]);
 			 */
 			goto exit_bh;
 		}
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 203f9e4a70be..056474b7b8e0 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -54,9 +54,9 @@
 
 static struct proc_dir_entry *ext4_proc_root;
 static struct kset *ext4_kset;
-struct ext4_lazy_init *ext4_li_info;
-struct mutex ext4_li_mtx;
-struct ext4_features *ext4_feat;
+static struct ext4_lazy_init *ext4_li_info;
+static struct mutex ext4_li_mtx;
+static struct ext4_features *ext4_feat;
 
 static int ext4_load_journal(struct super_block *, struct ext4_super_block *,
 			     unsigned long journal_devnum);
@@ -75,6 +75,7 @@ static void ext4_write_super(struct super_block *sb);
 static int ext4_freeze(struct super_block *sb);
 static struct dentry *ext4_mount(struct file_system_type *fs_type, int flags,
 		       const char *dev_name, void *data);
+static int ext4_feature_set_ok(struct super_block *sb, int readonly);
 static void ext4_destroy_lazyinit_thread(void);
 static void ext4_unregister_li_request(struct super_block *sb);
 static void ext4_clear_request_list(void);
@@ -594,7 +595,7 @@ __acquires(bitlock)
 
 	vaf.fmt = fmt;
 	vaf.va = &args;
-	printk(KERN_CRIT "EXT4-fs error (device %s): %s:%d: group %u",
+	printk(KERN_CRIT "EXT4-fs error (device %s): %s:%d: group %u, ",
 	       sb->s_id, function, line, grp);
 	if (ino)
 		printk(KERN_CONT "inode %lu: ", ino);
@@ -616,7 +617,7 @@ __acquires(bitlock)
 	 * filesystem will have already been marked read/only and the
 	 * journal has been aborted.  We return 1 as a hint to callers
 	 * who might what to use the return value from
-	 * ext4_grp_locked_error() to distinguish beween the
+	 * ext4_grp_locked_error() to distinguish between the
 	 * ERRORS_CONT and ERRORS_RO case, and perhaps return more
 	 * aggressively from the ext4 function in question, with a
 	 * more appropriate error code.
@@ -997,13 +998,10 @@ static int ext4_show_options(struct seq_file *seq, struct vfsmount *vfs)
 	if (test_opt(sb, OLDALLOC))
 		seq_puts(seq, ",oldalloc");
 #ifdef CONFIG_EXT4_FS_XATTR
-	if (test_opt(sb, XATTR_USER) &&
-		!(def_mount_opts & EXT4_DEFM_XATTR_USER))
+	if (test_opt(sb, XATTR_USER))
 		seq_puts(seq, ",user_xattr");
-	if (!test_opt(sb, XATTR_USER) &&
-	    (def_mount_opts & EXT4_DEFM_XATTR_USER)) {
+	if (!test_opt(sb, XATTR_USER))
 		seq_puts(seq, ",nouser_xattr");
-	}
 #endif
 #ifdef CONFIG_EXT4_FS_POSIX_ACL
 	if (test_opt(sb, POSIX_ACL) && !(def_mount_opts & EXT4_DEFM_ACL))
@@ -1041,8 +1039,8 @@ static int ext4_show_options(struct seq_file *seq, struct vfsmount *vfs)
 	    !(def_mount_opts & EXT4_DEFM_NODELALLOC))
 		seq_puts(seq, ",nodelalloc");
 
-	if (test_opt(sb, MBLK_IO_SUBMIT))
-		seq_puts(seq, ",mblk_io_submit");
+	if (!test_opt(sb, MBLK_IO_SUBMIT))
+		seq_puts(seq, ",nomblk_io_submit");
 	if (sbi->s_stripe)
 		seq_printf(seq, ",stripe=%lu", sbi->s_stripe);
 	/*
@@ -1451,7 +1449,7 @@ static int parse_options(char *options, struct super_block *sb,
 		 * Initialize args struct so we know whether arg was
 		 * found; some options take optional arguments.
 		 */
-		args[0].to = args[0].from = 0;
+		args[0].to = args[0].from = NULL;
 		token = match_token(p, tokens, args);
 		switch (token) {
 		case Opt_bsd_df:
@@ -1771,7 +1769,7 @@ set_qf_format:
 				return 0;
 			if (option < 0 || option > (1 << 30))
 				return 0;
-			if (!is_power_of_2(option)) {
+			if (option && !is_power_of_2(option)) {
 				ext4_msg(sb, KERN_ERR,
 					 "EXT4-fs: inode_readahead_blks"
 					 " must be a power of 2");
@@ -2120,6 +2118,13 @@ static void ext4_orphan_cleanup(struct super_block *sb,
 		return;
 	}
 
+	/* Check if feature set would not allow a r/w mount */
+	if (!ext4_feature_set_ok(sb, 0)) {
+		ext4_msg(sb, KERN_INFO, "Skipping orphan cleanup due to "
+			 "unknown ROCOMPAT features");
+		return;
+	}
+
 	if (EXT4_SB(sb)->s_mount_state & EXT4_ERROR_FS) {
 		if (es->s_last_orphan)
 			jbd_debug(1, "Errors on filesystem, "
@@ -2412,7 +2417,7 @@ static ssize_t inode_readahead_blks_store(struct ext4_attr *a,
 	if (parse_strtoul(buf, 0x40000000, &t))
 		return -EINVAL;
 
-	if (!is_power_of_2(t))
+	if (t && !is_power_of_2(t))
 		return -EINVAL;
 
 	sbi->s_inode_readahead_blks = t;
@@ -3095,14 +3100,14 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
 	}
 	if (def_mount_opts & EXT4_DEFM_UID16)
 		set_opt(sb, NO_UID32);
+	/* xattr user namespace & acls are now defaulted on */
 #ifdef CONFIG_EXT4_FS_XATTR
-	if (def_mount_opts & EXT4_DEFM_XATTR_USER)
-		set_opt(sb, XATTR_USER);
+	set_opt(sb, XATTR_USER);
 #endif
 #ifdef CONFIG_EXT4_FS_POSIX_ACL
-	if (def_mount_opts & EXT4_DEFM_ACL)
-		set_opt(sb, POSIX_ACL);
+	set_opt(sb, POSIX_ACL);
 #endif
+	set_opt(sb, MBLK_IO_SUBMIT);
 	if ((def_mount_opts & EXT4_DEFM_JMODE) == EXT4_DEFM_JMODE_DATA)
 		set_opt(sb, JOURNAL_DATA);
 	else if ((def_mount_opts & EXT4_DEFM_JMODE) == EXT4_DEFM_JMODE_ORDERED)
@@ -3516,7 +3521,7 @@ no_journal:
 	 * concurrency isn't really necessary.  Limit it to 1.
 	 */
 	EXT4_SB(sb)->dio_unwritten_wq =
-		alloc_workqueue("ext4-dio-unwritten", WQ_MEM_RECLAIM, 1);
+		alloc_workqueue("ext4-dio-unwritten", WQ_MEM_RECLAIM | WQ_UNBOUND, 1);
 	if (!EXT4_SB(sb)->dio_unwritten_wq) {
 		printk(KERN_ERR "EXT4-fs: failed to create DIO workqueue\n");
 		goto failed_mount_wq;
@@ -3531,17 +3536,16 @@ no_journal:
 	if (IS_ERR(root)) {
 		ext4_msg(sb, KERN_ERR, "get root inode failed");
 		ret = PTR_ERR(root);
+		root = NULL;
 		goto failed_mount4;
 	}
 	if (!S_ISDIR(root->i_mode) || !root->i_blocks || !root->i_size) {
-		iput(root);
 		ext4_msg(sb, KERN_ERR, "corrupt root inode, run e2fsck");
 		goto failed_mount4;
 	}
 	sb->s_root = d_alloc_root(root);
 	if (!sb->s_root) {
 		ext4_msg(sb, KERN_ERR, "get root dentry failed");
-		iput(root);
 		ret = -ENOMEM;
 		goto failed_mount4;
 	}
@@ -3657,6 +3661,8 @@ cantfind_ext4:
 	goto failed_mount;
 
 failed_mount4:
+	iput(root);
+	sb->s_root = NULL;
 	ext4_msg(sb, KERN_ERR, "mount failed");
 	destroy_workqueue(EXT4_SB(sb)->dio_unwritten_wq);
 failed_mount_wq:
@@ -4618,7 +4624,7 @@ static int ext4_quota_off(struct super_block *sb, int type)
 
 /* Read data from quotafile - avoid pagecache and such because we cannot afford
  * acquiring the locks... As quota files are never truncated and quota code
- * itself serializes the operations (and noone else should touch the files)
+ * itself serializes the operations (and no one else should touch the files)
  * we don't have to be afraid of races */
 static ssize_t ext4_quota_read(struct super_block *sb, int type, char *data,
 			       size_t len, loff_t off)
diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c
index fc32176eee39..b545ca1c459c 100644
--- a/fs/ext4/xattr.c
+++ b/fs/ext4/xattr.c
@@ -735,7 +735,7 @@ ext4_xattr_block_set(handle_t *handle, struct inode *inode,
 			int offset = (char *)s->here - bs->bh->b_data;
 
 			unlock_buffer(bs->bh);
-			jbd2_journal_release_buffer(handle, bs->bh);
+			ext4_handle_release_buffer(handle, bs->bh);
 			if (ce) {
 				mb_cache_entry_release(ce);
 				ce = NULL;
@@ -833,7 +833,7 @@ inserted:
 			new_bh = sb_getblk(sb, block);
 			if (!new_bh) {
 getblk_failed:
-				ext4_free_blocks(handle, inode, 0, block, 1,
+				ext4_free_blocks(handle, inode, NULL, block, 1,
 						 EXT4_FREE_BLOCKS_METADATA);
 				error = -EIO;
 				goto cleanup;
diff --git a/fs/freevxfs/vxfs_fshead.c b/fs/freevxfs/vxfs_fshead.c
index 78948b4b1894..c9a6a94e58e9 100644
--- a/fs/freevxfs/vxfs_fshead.c
+++ b/fs/freevxfs/vxfs_fshead.c
@@ -164,7 +164,7 @@ vxfs_read_fshead(struct super_block *sbp)
 		goto out_free_pfp;
 	}
 	if (!VXFS_ISILT(VXFS_INO(infp->vsi_stilist))) {
-		printk(KERN_ERR "vxfs: structual list inode is of wrong type (%x)\n",
+		printk(KERN_ERR "vxfs: structural list inode is of wrong type (%x)\n",
 				VXFS_INO(infp->vsi_stilist)->vii_mode & VXFS_TYPE_MASK); 
 		goto out_iput_stilist;
 	}
diff --git a/fs/freevxfs/vxfs_lookup.c b/fs/freevxfs/vxfs_lookup.c
index 6c5131d592f0..3360f1e678ad 100644
--- a/fs/freevxfs/vxfs_lookup.c
+++ b/fs/freevxfs/vxfs_lookup.c
@@ -162,7 +162,7 @@ vxfs_find_entry(struct inode *ip, struct dentry *dp, struct page **ppp)
 /**
  * vxfs_inode_by_name - find inode number for dentry
  * @dip:	directory to search in
- * @dp:		dentry we seach for
+ * @dp:		dentry we search for
  *
  * Description:
  *   vxfs_inode_by_name finds out the inode number of
diff --git a/fs/freevxfs/vxfs_olt.h b/fs/freevxfs/vxfs_olt.h
index d8324296486f..b7b3af502615 100644
--- a/fs/freevxfs/vxfs_olt.h
+++ b/fs/freevxfs/vxfs_olt.h
@@ -60,7 +60,7 @@ enum {
  *
  * The Object Location Table header is placed at the beginning of each
  * OLT extent.  It is used to fing certain filesystem-wide metadata, e.g.
- * the inital inode list, the fileset header or the device configuration.
+ * the initial inode list, the fileset header or the device configuration.
  */
 struct vxfs_olt {
 	u_int32_t	olt_magic;	/* magic number			*/
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index 59c6e4956786..34591ee804b5 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -144,7 +144,7 @@ __bdi_start_writeback(struct backing_dev_info *bdi, long nr_pages,
  *
  * Description:
  *   This does WB_SYNC_NONE opportunistic writeback. The IO is only
- *   started when this function returns, we make no guarentees on
+ *   started when this function returns, we make no guarantees on
  *   completion. Caller need not hold sb s_umount semaphore.
  *
  */
@@ -176,6 +176,17 @@ void bdi_start_background_writeback(struct backing_dev_info *bdi)
 }
 
 /*
+ * Remove the inode from the writeback list it is on.
+ */
+void inode_wb_list_del(struct inode *inode)
+{
+	spin_lock(&inode_wb_list_lock);
+	list_del_init(&inode->i_wb_list);
+	spin_unlock(&inode_wb_list_lock);
+}
+
+
+/*
  * Redirty an inode: set its when-it-was dirtied timestamp and move it to the
  * furthest end of its superblock's dirty-inode list.
  *
@@ -188,6 +199,7 @@ static void redirty_tail(struct inode *inode)
 {
 	struct bdi_writeback *wb = &inode_to_bdi(inode)->wb;
 
+	assert_spin_locked(&inode_wb_list_lock);
 	if (!list_empty(&wb->b_dirty)) {
 		struct inode *tail;
 
@@ -205,14 +217,17 @@ static void requeue_io(struct inode *inode)
 {
 	struct bdi_writeback *wb = &inode_to_bdi(inode)->wb;
 
+	assert_spin_locked(&inode_wb_list_lock);
 	list_move(&inode->i_wb_list, &wb->b_more_io);
 }
 
 static void inode_sync_complete(struct inode *inode)
 {
 	/*
-	 * Prevent speculative execution through spin_unlock(&inode_lock);
+	 * Prevent speculative execution through
+	 * spin_unlock(&inode_wb_list_lock);
 	 */
+
 	smp_mb();
 	wake_up_bit(&inode->i_state, __I_SYNC);
 }
@@ -286,6 +301,7 @@ static void move_expired_inodes(struct list_head *delaying_queue,
  */
 static void queue_io(struct bdi_writeback *wb, unsigned long *older_than_this)
 {
+	assert_spin_locked(&inode_wb_list_lock);
 	list_splice_init(&wb->b_more_io, &wb->b_io);
 	move_expired_inodes(&wb->b_dirty, &wb->b_io, older_than_this);
 }
@@ -306,25 +322,25 @@ static void inode_wait_for_writeback(struct inode *inode)
 	wait_queue_head_t *wqh;
 
 	wqh = bit_waitqueue(&inode->i_state, __I_SYNC);
-	 while (inode->i_state & I_SYNC) {
-		spin_unlock(&inode_lock);
+	while (inode->i_state & I_SYNC) {
+		spin_unlock(&inode->i_lock);
+		spin_unlock(&inode_wb_list_lock);
 		__wait_on_bit(wqh, &wq, inode_wait, TASK_UNINTERRUPTIBLE);
-		spin_lock(&inode_lock);
+		spin_lock(&inode_wb_list_lock);
+		spin_lock(&inode->i_lock);
 	}
 }
 
 /*
- * Write out an inode's dirty pages.  Called under inode_lock.  Either the
- * caller has ref on the inode (either via __iget or via syscall against an fd)
- * or the inode has I_WILL_FREE set (via generic_forget_inode)
+ * Write out an inode's dirty pages.  Called under inode_wb_list_lock and
+ * inode->i_lock.  Either the caller has an active reference on the inode or
+ * the inode has I_WILL_FREE set.
  *
  * If `wait' is set, wait on the writeout.
  *
  * The whole writeout design is quite complex and fragile.  We want to avoid
  * starvation of particular inodes when others are being redirtied, prevent
  * livelocks, etc.
- *
- * Called under inode_lock.
  */
 static int
 writeback_single_inode(struct inode *inode, struct writeback_control *wbc)
@@ -333,6 +349,9 @@ writeback_single_inode(struct inode *inode, struct writeback_control *wbc)
 	unsigned dirty;
 	int ret;
 
+	assert_spin_locked(&inode_wb_list_lock);
+	assert_spin_locked(&inode->i_lock);
+
 	if (!atomic_read(&inode->i_count))
 		WARN_ON(!(inode->i_state & (I_WILL_FREE|I_FREEING)));
 	else
@@ -363,7 +382,8 @@ writeback_single_inode(struct inode *inode, struct writeback_control *wbc)
 	/* Set I_SYNC, reset I_DIRTY_PAGES */
 	inode->i_state |= I_SYNC;
 	inode->i_state &= ~I_DIRTY_PAGES;
-	spin_unlock(&inode_lock);
+	spin_unlock(&inode->i_lock);
+	spin_unlock(&inode_wb_list_lock);
 
 	ret = do_writepages(mapping, wbc);
 
@@ -383,10 +403,10 @@ writeback_single_inode(struct inode *inode, struct writeback_control *wbc)
 	 * due to delalloc, clear dirty metadata flags right before
 	 * write_inode()
 	 */
-	spin_lock(&inode_lock);
+	spin_lock(&inode->i_lock);
 	dirty = inode->i_state & I_DIRTY;
 	inode->i_state &= ~(I_DIRTY_SYNC | I_DIRTY_DATASYNC);
-	spin_unlock(&inode_lock);
+	spin_unlock(&inode->i_lock);
 	/* Don't write the inode if only I_DIRTY_PAGES was set */
 	if (dirty & (I_DIRTY_SYNC | I_DIRTY_DATASYNC)) {
 		int err = write_inode(inode, wbc);
@@ -394,7 +414,8 @@ writeback_single_inode(struct inode *inode, struct writeback_control *wbc)
 			ret = err;
 	}
 
-	spin_lock(&inode_lock);
+	spin_lock(&inode_wb_list_lock);
+	spin_lock(&inode->i_lock);
 	inode->i_state &= ~I_SYNC;
 	if (!(inode->i_state & I_FREEING)) {
 		if (mapping_tagged(mapping, PAGECACHE_TAG_DIRTY)) {
@@ -506,7 +527,9 @@ static int writeback_sb_inodes(struct super_block *sb, struct bdi_writeback *wb,
 		 * kind does not need peridic writeout yet, and for the latter
 		 * kind writeout is handled by the freer.
 		 */
+		spin_lock(&inode->i_lock);
 		if (inode->i_state & (I_NEW | I_FREEING | I_WILL_FREE)) {
+			spin_unlock(&inode->i_lock);
 			requeue_io(inode);
 			continue;
 		}
@@ -515,10 +538,13 @@ static int writeback_sb_inodes(struct super_block *sb, struct bdi_writeback *wb,
 		 * Was this inode dirtied after sync_sb_inodes was called?
 		 * This keeps sync from extra jobs and livelock.
 		 */
-		if (inode_dirtied_after(inode, wbc->wb_start))
+		if (inode_dirtied_after(inode, wbc->wb_start)) {
+			spin_unlock(&inode->i_lock);
 			return 1;
+		}
 
 		__iget(inode);
+
 		pages_skipped = wbc->pages_skipped;
 		writeback_single_inode(inode, wbc);
 		if (wbc->pages_skipped != pages_skipped) {
@@ -528,10 +554,11 @@ static int writeback_sb_inodes(struct super_block *sb, struct bdi_writeback *wb,
 			 */
 			redirty_tail(inode);
 		}
-		spin_unlock(&inode_lock);
+		spin_unlock(&inode->i_lock);
+		spin_unlock(&inode_wb_list_lock);
 		iput(inode);
 		cond_resched();
-		spin_lock(&inode_lock);
+		spin_lock(&inode_wb_list_lock);
 		if (wbc->nr_to_write <= 0) {
 			wbc->more_io = 1;
 			return 1;
@@ -550,7 +577,7 @@ void writeback_inodes_wb(struct bdi_writeback *wb,
 
 	if (!wbc->wb_start)
 		wbc->wb_start = jiffies; /* livelock avoidance */
-	spin_lock(&inode_lock);
+	spin_lock(&inode_wb_list_lock);
 	if (!wbc->for_kupdate || list_empty(&wb->b_io))
 		queue_io(wb, wbc->older_than_this);
 
@@ -568,7 +595,7 @@ void writeback_inodes_wb(struct bdi_writeback *wb,
 		if (ret)
 			break;
 	}
-	spin_unlock(&inode_lock);
+	spin_unlock(&inode_wb_list_lock);
 	/* Leave any unwritten inodes on b_io */
 }
 
@@ -577,11 +604,11 @@ static void __writeback_inodes_sb(struct super_block *sb,
 {
 	WARN_ON(!rwsem_is_locked(&sb->s_umount));
 
-	spin_lock(&inode_lock);
+	spin_lock(&inode_wb_list_lock);
 	if (!wbc->for_kupdate || list_empty(&wb->b_io))
 		queue_io(wb, wbc->older_than_this);
 	writeback_sb_inodes(sb, wb, wbc, true);
-	spin_unlock(&inode_lock);
+	spin_unlock(&inode_wb_list_lock);
 }
 
 /*
@@ -720,13 +747,15 @@ static long wb_writeback(struct bdi_writeback *wb,
 		 * become available for writeback. Otherwise
 		 * we'll just busyloop.
 		 */
-		spin_lock(&inode_lock);
+		spin_lock(&inode_wb_list_lock);
 		if (!list_empty(&wb->b_more_io))  {
 			inode = wb_inode(wb->b_more_io.prev);
 			trace_wbc_writeback_wait(&wbc, wb->bdi);
+			spin_lock(&inode->i_lock);
 			inode_wait_for_writeback(inode);
+			spin_unlock(&inode->i_lock);
 		}
-		spin_unlock(&inode_lock);
+		spin_unlock(&inode_wb_list_lock);
 	}
 
 	return wrote;
@@ -992,7 +1021,6 @@ void __mark_inode_dirty(struct inode *inode, int flags)
 {
 	struct super_block *sb = inode->i_sb;
 	struct backing_dev_info *bdi = NULL;
-	bool wakeup_bdi = false;
 
 	/*
 	 * Don't do this for I_DIRTY_PAGES - that doesn't actually
@@ -1016,7 +1044,7 @@ void __mark_inode_dirty(struct inode *inode, int flags)
 	if (unlikely(block_dump))
 		block_dump___mark_inode_dirty(inode);
 
-	spin_lock(&inode_lock);
+	spin_lock(&inode->i_lock);
 	if ((inode->i_state & flags) != flags) {
 		const int was_dirty = inode->i_state & I_DIRTY;
 
@@ -1028,7 +1056,7 @@ void __mark_inode_dirty(struct inode *inode, int flags)
 		 * superblock list, based upon its state.
 		 */
 		if (inode->i_state & I_SYNC)
-			goto out;
+			goto out_unlock_inode;
 
 		/*
 		 * Only add valid (hashed) inodes to the superblock's
@@ -1036,16 +1064,17 @@ void __mark_inode_dirty(struct inode *inode, int flags)
 		 */
 		if (!S_ISBLK(inode->i_mode)) {
 			if (inode_unhashed(inode))
-				goto out;
+				goto out_unlock_inode;
 		}
 		if (inode->i_state & I_FREEING)
-			goto out;
+			goto out_unlock_inode;
 
 		/*
 		 * If the inode was already on b_dirty/b_io/b_more_io, don't
 		 * reposition it (that would break b_dirty time-ordering).
 		 */
 		if (!was_dirty) {
+			bool wakeup_bdi = false;
 			bdi = inode_to_bdi(inode);
 
 			if (bdi_cap_writeback_dirty(bdi)) {
@@ -1062,15 +1091,20 @@ void __mark_inode_dirty(struct inode *inode, int flags)
 					wakeup_bdi = true;
 			}
 
+			spin_unlock(&inode->i_lock);
+			spin_lock(&inode_wb_list_lock);
 			inode->dirtied_when = jiffies;
 			list_move(&inode->i_wb_list, &bdi->wb.b_dirty);
+			spin_unlock(&inode_wb_list_lock);
+
+			if (wakeup_bdi)
+				bdi_wakeup_thread_delayed(bdi);
+			return;
 		}
 	}
-out:
-	spin_unlock(&inode_lock);
+out_unlock_inode:
+	spin_unlock(&inode->i_lock);
 
-	if (wakeup_bdi)
-		bdi_wakeup_thread_delayed(bdi);
 }
 EXPORT_SYMBOL(__mark_inode_dirty);
 
@@ -1101,7 +1135,7 @@ static void wait_sb_inodes(struct super_block *sb)
 	 */
 	WARN_ON(!rwsem_is_locked(&sb->s_umount));
 
-	spin_lock(&inode_lock);
+	spin_lock(&inode_sb_list_lock);
 
 	/*
 	 * Data integrity sync. Must wait for all pages under writeback,
@@ -1111,22 +1145,25 @@ static void wait_sb_inodes(struct super_block *sb)
 	 * we still have to wait for that writeout.
 	 */
 	list_for_each_entry(inode, &sb->s_inodes, i_sb_list) {
-		struct address_space *mapping;
+		struct address_space *mapping = inode->i_mapping;
 
-		if (inode->i_state & (I_FREEING|I_WILL_FREE|I_NEW))
-			continue;
-		mapping = inode->i_mapping;
-		if (mapping->nrpages == 0)
+		spin_lock(&inode->i_lock);
+		if ((inode->i_state & (I_FREEING|I_WILL_FREE|I_NEW)) ||
+		    (mapping->nrpages == 0)) {
+			spin_unlock(&inode->i_lock);
 			continue;
+		}
 		__iget(inode);
-		spin_unlock(&inode_lock);
+		spin_unlock(&inode->i_lock);
+		spin_unlock(&inode_sb_list_lock);
+
 		/*
-		 * We hold a reference to 'inode' so it couldn't have
-		 * been removed from s_inodes list while we dropped the
-		 * inode_lock.  We cannot iput the inode now as we can
-		 * be holding the last reference and we cannot iput it
-		 * under inode_lock. So we keep the reference and iput
-		 * it later.
+		 * We hold a reference to 'inode' so it couldn't have been
+		 * removed from s_inodes list while we dropped the
+		 * inode_sb_list_lock.  We cannot iput the inode now as we can
+		 * be holding the last reference and we cannot iput it under
+		 * inode_sb_list_lock. So we keep the reference and iput it
+		 * later.
 		 */
 		iput(old_inode);
 		old_inode = inode;
@@ -1135,9 +1172,9 @@ static void wait_sb_inodes(struct super_block *sb)
 
 		cond_resched();
 
-		spin_lock(&inode_lock);
+		spin_lock(&inode_sb_list_lock);
 	}
-	spin_unlock(&inode_lock);
+	spin_unlock(&inode_sb_list_lock);
 	iput(old_inode);
 }
 
@@ -1271,9 +1308,11 @@ int write_inode_now(struct inode *inode, int sync)
 		wbc.nr_to_write = 0;
 
 	might_sleep();
-	spin_lock(&inode_lock);
+	spin_lock(&inode_wb_list_lock);
+	spin_lock(&inode->i_lock);
 	ret = writeback_single_inode(inode, &wbc);
-	spin_unlock(&inode_lock);
+	spin_unlock(&inode->i_lock);
+	spin_unlock(&inode_wb_list_lock);
 	if (sync)
 		inode_sync_wait(inode);
 	return ret;
@@ -1295,9 +1334,11 @@ int sync_inode(struct inode *inode, struct writeback_control *wbc)
 {
 	int ret;
 
-	spin_lock(&inode_lock);
+	spin_lock(&inode_wb_list_lock);
+	spin_lock(&inode->i_lock);
 	ret = writeback_single_inode(inode, wbc);
-	spin_unlock(&inode_lock);
+	spin_unlock(&inode->i_lock);
+	spin_unlock(&inode_wb_list_lock);
 	return ret;
 }
 EXPORT_SYMBOL(sync_inode);
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 6ea00734984e..82a66466a24c 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -523,7 +523,7 @@ static int fuse_readpage(struct file *file, struct page *page)
 		goto out;
 
 	/*
-	 * Page writeback can extend beyond the liftime of the
+	 * Page writeback can extend beyond the lifetime of the
 	 * page-cache page, so make sure we read a properly synced
 	 * page.
 	 */
diff --git a/fs/gfs2/bmap.c b/fs/gfs2/bmap.c
index ef3dc4b9fae2..74add2ddcc3f 100644
--- a/fs/gfs2/bmap.c
+++ b/fs/gfs2/bmap.c
@@ -1136,7 +1136,7 @@ void gfs2_trim_blocks(struct inode *inode)
  * earlier versions of GFS2 have a bug in the stuffed file reading
  * code which will result in a buffer overrun if the size is larger
  * than the max stuffed file size. In order to prevent this from
- * occuring, such files are unstuffed, but in other cases we can
+ * occurring, such files are unstuffed, but in other cases we can
  * just update the inode size directly.
  *
  * Returns: 0 on success, or -ve on error
diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c
index e2431313491f..f07643e21bfa 100644
--- a/fs/gfs2/glock.c
+++ b/fs/gfs2/glock.c
@@ -1123,7 +1123,7 @@ void gfs2_glock_dq_uninit(struct gfs2_holder *gh)
  * @number: the lock number
  * @glops: the glock operations for the type of glock
  * @state: the state to acquire the glock in
- * @flags: modifier flags for the aquisition
+ * @flags: modifier flags for the acquisition
  * @gh: the struct gfs2_holder
  *
  * Returns: errno
diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c
index ec73ed70bae1..a4e23d68a398 100644
--- a/fs/gfs2/super.c
+++ b/fs/gfs2/super.c
@@ -657,7 +657,7 @@ out:
  * @sdp: the file system
  *
  * This function flushes data and meta data for all machines by
- * aquiring the transaction log exclusively.  All journals are
+ * acquiring the transaction log exclusively.  All journals are
  * ensured to be in a clean state as well.
  *
  * Returns: errno
diff --git a/fs/inode.c b/fs/inode.c
index 0b3da4a77704..33c963d08ab4 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -26,6 +26,38 @@
 #include <linux/posix_acl.h>
 #include <linux/ima.h>
 #include <linux/cred.h>
+#include "internal.h"
+
+/*
+ * inode locking rules.
+ *
+ * inode->i_lock protects:
+ *   inode->i_state, inode->i_hash, __iget()
+ * inode_lru_lock protects:
+ *   inode_lru, inode->i_lru
+ * inode_sb_list_lock protects:
+ *   sb->s_inodes, inode->i_sb_list
+ * inode_wb_list_lock protects:
+ *   bdi->wb.b_{dirty,io,more_io}, inode->i_wb_list
+ * inode_hash_lock protects:
+ *   inode_hashtable, inode->i_hash
+ *
+ * Lock ordering:
+ *
+ * inode_sb_list_lock
+ *   inode->i_lock
+ *     inode_lru_lock
+ *
+ * inode_wb_list_lock
+ *   inode->i_lock
+ *
+ * inode_hash_lock
+ *   inode_sb_list_lock
+ *   inode->i_lock
+ *
+ * iunique_lock
+ *   inode_hash_lock
+ */
 
 /*
  * This is needed for the following functions:
@@ -60,6 +92,8 @@
 
 static unsigned int i_hash_mask __read_mostly;
 static unsigned int i_hash_shift __read_mostly;
+static struct hlist_head *inode_hashtable __read_mostly;
+static __cacheline_aligned_in_smp DEFINE_SPINLOCK(inode_hash_lock);
 
 /*
  * Each inode can be on two separate lists. One is
@@ -74,15 +108,10 @@ static unsigned int i_hash_shift __read_mostly;
  */
 
 static LIST_HEAD(inode_lru);
-static struct hlist_head *inode_hashtable __read_mostly;
+static DEFINE_SPINLOCK(inode_lru_lock);
 
-/*
- * A simple spinlock to protect the list manipulations.
- *
- * NOTE! You also have to own the lock if you change
- * the i_state of an inode while it is in use..
- */
-DEFINE_SPINLOCK(inode_lock);
+__cacheline_aligned_in_smp DEFINE_SPINLOCK(inode_sb_list_lock);
+__cacheline_aligned_in_smp DEFINE_SPINLOCK(inode_wb_list_lock);
 
 /*
  * iprune_sem provides exclusion between the icache shrinking and the
@@ -96,6 +125,14 @@ DEFINE_SPINLOCK(inode_lock);
 static DECLARE_RWSEM(iprune_sem);
 
 /*
+ * Empty aops. Can be used for the cases where the user does not
+ * define any of the address_space operations.
+ */
+const struct address_space_operations empty_aops = {
+};
+EXPORT_SYMBOL(empty_aops);
+
+/*
  * Statistics gathering..
  */
 struct inodes_stat_t inodes_stat;
@@ -137,15 +174,6 @@ int proc_nr_inodes(ctl_table *table, int write,
 }
 #endif
 
-static void wake_up_inode(struct inode *inode)
-{
-	/*
-	 * Prevent speculative execution through spin_unlock(&inode_lock);
-	 */
-	smp_mb();
-	wake_up_bit(&inode->i_state, __I_NEW);
-}
-
 /**
  * inode_init_always - perform inode structure intialisation
  * @sb: superblock inode belongs to
@@ -156,7 +184,6 @@ static void wake_up_inode(struct inode *inode)
  */
 int inode_init_always(struct super_block *sb, struct inode *inode)
 {
-	static const struct address_space_operations empty_aops;
 	static const struct inode_operations empty_iops;
 	static const struct file_operations empty_fops;
 	struct address_space *const mapping = &inode->i_data;
@@ -336,7 +363,7 @@ static void init_once(void *foo)
 }
 
 /*
- * inode_lock must be held
+ * inode->i_lock must be held
  */
 void __iget(struct inode *inode)
 {
@@ -354,23 +381,22 @@ EXPORT_SYMBOL(ihold);
 
 static void inode_lru_list_add(struct inode *inode)
 {
+	spin_lock(&inode_lru_lock);
 	if (list_empty(&inode->i_lru)) {
 		list_add(&inode->i_lru, &inode_lru);
 		inodes_stat.nr_unused++;
 	}
+	spin_unlock(&inode_lru_lock);
 }
 
 static void inode_lru_list_del(struct inode *inode)
 {
+	spin_lock(&inode_lru_lock);
 	if (!list_empty(&inode->i_lru)) {
 		list_del_init(&inode->i_lru);
 		inodes_stat.nr_unused--;
 	}
-}
-
-static inline void __inode_sb_list_add(struct inode *inode)
-{
-	list_add(&inode->i_sb_list, &inode->i_sb->s_inodes);
+	spin_unlock(&inode_lru_lock);
 }
 
 /**
@@ -379,15 +405,17 @@ static inline void __inode_sb_list_add(struct inode *inode)
  */
 void inode_sb_list_add(struct inode *inode)
 {
-	spin_lock(&inode_lock);
-	__inode_sb_list_add(inode);
-	spin_unlock(&inode_lock);
+	spin_lock(&inode_sb_list_lock);
+	list_add(&inode->i_sb_list, &inode->i_sb->s_inodes);
+	spin_unlock(&inode_sb_list_lock);
 }
 EXPORT_SYMBOL_GPL(inode_sb_list_add);
 
-static inline void __inode_sb_list_del(struct inode *inode)
+static inline void inode_sb_list_del(struct inode *inode)
 {
+	spin_lock(&inode_sb_list_lock);
 	list_del_init(&inode->i_sb_list);
+	spin_unlock(&inode_sb_list_lock);
 }
 
 static unsigned long hash(struct super_block *sb, unsigned long hashval)
@@ -412,24 +440,15 @@ void __insert_inode_hash(struct inode *inode, unsigned long hashval)
 {
 	struct hlist_head *b = inode_hashtable + hash(inode->i_sb, hashval);
 
-	spin_lock(&inode_lock);
+	spin_lock(&inode_hash_lock);
+	spin_lock(&inode->i_lock);
 	hlist_add_head(&inode->i_hash, b);
-	spin_unlock(&inode_lock);
+	spin_unlock(&inode->i_lock);
+	spin_unlock(&inode_hash_lock);
 }
 EXPORT_SYMBOL(__insert_inode_hash);
 
 /**
- *	__remove_inode_hash - remove an inode from the hash
- *	@inode: inode to unhash
- *
- *	Remove an inode from the superblock.
- */
-static void __remove_inode_hash(struct inode *inode)
-{
-	hlist_del_init(&inode->i_hash);
-}
-
-/**
  *	remove_inode_hash - remove an inode from the hash
  *	@inode: inode to unhash
  *
@@ -437,9 +456,11 @@ static void __remove_inode_hash(struct inode *inode)
  */
 void remove_inode_hash(struct inode *inode)
 {
-	spin_lock(&inode_lock);
+	spin_lock(&inode_hash_lock);
+	spin_lock(&inode->i_lock);
 	hlist_del_init(&inode->i_hash);
-	spin_unlock(&inode_lock);
+	spin_unlock(&inode->i_lock);
+	spin_unlock(&inode_hash_lock);
 }
 EXPORT_SYMBOL(remove_inode_hash);
 
@@ -456,10 +477,29 @@ void end_writeback(struct inode *inode)
 }
 EXPORT_SYMBOL(end_writeback);
 
+/*
+ * Free the inode passed in, removing it from the lists it is still connected
+ * to. We remove any pages still attached to the inode and wait for any IO that
+ * is still in progress before finally destroying the inode.
+ *
+ * An inode must already be marked I_FREEING so that we avoid the inode being
+ * moved back onto lists if we race with other code that manipulates the lists
+ * (e.g. writeback_single_inode). The caller is responsible for setting this.
+ *
+ * An inode must already be removed from the LRU list before being evicted from
+ * the cache. This should occur atomically with setting the I_FREEING state
+ * flag, so no inodes here should ever be on the LRU when being evicted.
+ */
 static void evict(struct inode *inode)
 {
 	const struct super_operations *op = inode->i_sb->s_op;
 
+	BUG_ON(!(inode->i_state & I_FREEING));
+	BUG_ON(!list_empty(&inode->i_lru));
+
+	inode_wb_list_del(inode);
+	inode_sb_list_del(inode);
+
 	if (op->evict_inode) {
 		op->evict_inode(inode);
 	} else {
@@ -471,6 +511,15 @@ static void evict(struct inode *inode)
 		bd_forget(inode);
 	if (S_ISCHR(inode->i_mode) && inode->i_cdev)
 		cd_forget(inode);
+
+	remove_inode_hash(inode);
+
+	spin_lock(&inode->i_lock);
+	wake_up_bit(&inode->i_state, __I_NEW);
+	BUG_ON(inode->i_state != (I_FREEING | I_CLEAR));
+	spin_unlock(&inode->i_lock);
+
+	destroy_inode(inode);
 }
 
 /*
@@ -489,14 +538,6 @@ static void dispose_list(struct list_head *head)
 		list_del_init(&inode->i_lru);
 
 		evict(inode);
-
-		spin_lock(&inode_lock);
-		__remove_inode_hash(inode);
-		__inode_sb_list_del(inode);
-		spin_unlock(&inode_lock);
-
-		wake_up_inode(inode);
-		destroy_inode(inode);
 	}
 }
 
@@ -514,25 +555,23 @@ void evict_inodes(struct super_block *sb)
 	struct inode *inode, *next;
 	LIST_HEAD(dispose);
 
-	spin_lock(&inode_lock);
+	spin_lock(&inode_sb_list_lock);
 	list_for_each_entry_safe(inode, next, &sb->s_inodes, i_sb_list) {
 		if (atomic_read(&inode->i_count))
 			continue;
-		if (inode->i_state & (I_NEW | I_FREEING | I_WILL_FREE))
+
+		spin_lock(&inode->i_lock);
+		if (inode->i_state & (I_NEW | I_FREEING | I_WILL_FREE)) {
+			spin_unlock(&inode->i_lock);
 			continue;
+		}
 
 		inode->i_state |= I_FREEING;
-
-		/*
-		 * Move the inode off the IO lists and LRU once I_FREEING is
-		 * set so that it won't get moved back on there if it is dirty.
-		 */
-		list_move(&inode->i_lru, &dispose);
-		list_del_init(&inode->i_wb_list);
-		if (!(inode->i_state & (I_DIRTY | I_SYNC)))
-			inodes_stat.nr_unused--;
+		inode_lru_list_del(inode);
+		spin_unlock(&inode->i_lock);
+		list_add(&inode->i_lru, &dispose);
 	}
-	spin_unlock(&inode_lock);
+	spin_unlock(&inode_sb_list_lock);
 
 	dispose_list(&dispose);
 
@@ -561,31 +600,30 @@ int invalidate_inodes(struct super_block *sb, bool kill_dirty)
 	struct inode *inode, *next;
 	LIST_HEAD(dispose);
 
-	spin_lock(&inode_lock);
+	spin_lock(&inode_sb_list_lock);
 	list_for_each_entry_safe(inode, next, &sb->s_inodes, i_sb_list) {
-		if (inode->i_state & (I_NEW | I_FREEING | I_WILL_FREE))
+		spin_lock(&inode->i_lock);
+		if (inode->i_state & (I_NEW | I_FREEING | I_WILL_FREE)) {
+			spin_unlock(&inode->i_lock);
 			continue;
+		}
 		if (inode->i_state & I_DIRTY && !kill_dirty) {
+			spin_unlock(&inode->i_lock);
 			busy = 1;
 			continue;
 		}
 		if (atomic_read(&inode->i_count)) {
+			spin_unlock(&inode->i_lock);
 			busy = 1;
 			continue;
 		}
 
 		inode->i_state |= I_FREEING;
-
-		/*
-		 * Move the inode off the IO lists and LRU once I_FREEING is
-		 * set so that it won't get moved back on there if it is dirty.
-		 */
-		list_move(&inode->i_lru, &dispose);
-		list_del_init(&inode->i_wb_list);
-		if (!(inode->i_state & (I_DIRTY | I_SYNC)))
-			inodes_stat.nr_unused--;
+		inode_lru_list_del(inode);
+		spin_unlock(&inode->i_lock);
+		list_add(&inode->i_lru, &dispose);
 	}
-	spin_unlock(&inode_lock);
+	spin_unlock(&inode_sb_list_lock);
 
 	dispose_list(&dispose);
 
@@ -607,7 +645,7 @@ static int can_unuse(struct inode *inode)
 
 /*
  * Scan `goal' inodes on the unused list for freeable ones. They are moved to a
- * temporary list and then are freed outside inode_lock by dispose_list().
+ * temporary list and then are freed outside inode_lru_lock by dispose_list().
  *
  * Any inodes which are pinned purely because of attached pagecache have their
  * pagecache removed.  If the inode has metadata buffers attached to
@@ -628,7 +666,7 @@ static void prune_icache(int nr_to_scan)
 	unsigned long reap = 0;
 
 	down_read(&iprune_sem);
-	spin_lock(&inode_lock);
+	spin_lock(&inode_lru_lock);
 	for (nr_scanned = 0; nr_scanned < nr_to_scan; nr_scanned++) {
 		struct inode *inode;
 
@@ -638,53 +676,67 @@ static void prune_icache(int nr_to_scan)
 		inode = list_entry(inode_lru.prev, struct inode, i_lru);
 
 		/*
+		 * we are inverting the inode_lru_lock/inode->i_lock here,
+		 * so use a trylock. If we fail to get the lock, just move the
+		 * inode to the back of the list so we don't spin on it.
+		 */
+		if (!spin_trylock(&inode->i_lock)) {
+			list_move(&inode->i_lru, &inode_lru);
+			continue;
+		}
+
+		/*
 		 * Referenced or dirty inodes are still in use. Give them
 		 * another pass through the LRU as we canot reclaim them now.
 		 */
 		if (atomic_read(&inode->i_count) ||
 		    (inode->i_state & ~I_REFERENCED)) {
 			list_del_init(&inode->i_lru);
+			spin_unlock(&inode->i_lock);
 			inodes_stat.nr_unused--;
 			continue;
 		}
 
 		/* recently referenced inodes get one more pass */
 		if (inode->i_state & I_REFERENCED) {
-			list_move(&inode->i_lru, &inode_lru);
 			inode->i_state &= ~I_REFERENCED;
+			list_move(&inode->i_lru, &inode_lru);
+			spin_unlock(&inode->i_lock);
 			continue;
 		}
 		if (inode_has_buffers(inode) || inode->i_data.nrpages) {
 			__iget(inode);
-			spin_unlock(&inode_lock);
+			spin_unlock(&inode->i_lock);
+			spin_unlock(&inode_lru_lock);
 			if (remove_inode_buffers(inode))
 				reap += invalidate_mapping_pages(&inode->i_data,
 								0, -1);
 			iput(inode);
-			spin_lock(&inode_lock);
+			spin_lock(&inode_lru_lock);
 
 			if (inode != list_entry(inode_lru.next,
 						struct inode, i_lru))
 				continue;	/* wrong inode or list_empty */
-			if (!can_unuse(inode))
+			/* avoid lock inversions with trylock */
+			if (!spin_trylock(&inode->i_lock))
+				continue;
+			if (!can_unuse(inode)) {
+				spin_unlock(&inode->i_lock);
 				continue;
+			}
 		}
 		WARN_ON(inode->i_state & I_NEW);
 		inode->i_state |= I_FREEING;
+		spin_unlock(&inode->i_lock);
 
-		/*
-		 * Move the inode off the IO lists and LRU once I_FREEING is
-		 * set so that it won't get moved back on there if it is dirty.
-		 */
 		list_move(&inode->i_lru, &freeable);
-		list_del_init(&inode->i_wb_list);
 		inodes_stat.nr_unused--;
 	}
 	if (current_is_kswapd())
 		__count_vm_events(KSWAPD_INODESTEAL, reap);
 	else
 		__count_vm_events(PGINODESTEAL, reap);
-	spin_unlock(&inode_lock);
+	spin_unlock(&inode_lru_lock);
 
 	dispose_list(&freeable);
 	up_read(&iprune_sem);
@@ -733,15 +785,21 @@ static struct inode *find_inode(struct super_block *sb,
 
 repeat:
 	hlist_for_each_entry(inode, node, head, i_hash) {
-		if (inode->i_sb != sb)
+		spin_lock(&inode->i_lock);
+		if (inode->i_sb != sb) {
+			spin_unlock(&inode->i_lock);
 			continue;
-		if (!test(inode, data))
+		}
+		if (!test(inode, data)) {
+			spin_unlock(&inode->i_lock);
 			continue;
+		}
 		if (inode->i_state & (I_FREEING|I_WILL_FREE)) {
 			__wait_on_freeing_inode(inode);
 			goto repeat;
 		}
 		__iget(inode);
+		spin_unlock(&inode->i_lock);
 		return inode;
 	}
 	return NULL;
@@ -759,15 +817,21 @@ static struct inode *find_inode_fast(struct super_block *sb,
 
 repeat:
 	hlist_for_each_entry(inode, node, head, i_hash) {
-		if (inode->i_ino != ino)
+		spin_lock(&inode->i_lock);
+		if (inode->i_ino != ino) {
+			spin_unlock(&inode->i_lock);
 			continue;
-		if (inode->i_sb != sb)
+		}
+		if (inode->i_sb != sb) {
+			spin_unlock(&inode->i_lock);
 			continue;
+		}
 		if (inode->i_state & (I_FREEING|I_WILL_FREE)) {
 			__wait_on_freeing_inode(inode);
 			goto repeat;
 		}
 		__iget(inode);
+		spin_unlock(&inode->i_lock);
 		return inode;
 	}
 	return NULL;
@@ -827,19 +891,26 @@ struct inode *new_inode(struct super_block *sb)
 {
 	struct inode *inode;
 
-	spin_lock_prefetch(&inode_lock);
+	spin_lock_prefetch(&inode_sb_list_lock);
 
 	inode = alloc_inode(sb);
 	if (inode) {
-		spin_lock(&inode_lock);
-		__inode_sb_list_add(inode);
+		spin_lock(&inode->i_lock);
 		inode->i_state = 0;
-		spin_unlock(&inode_lock);
+		spin_unlock(&inode->i_lock);
+		inode_sb_list_add(inode);
 	}
 	return inode;
 }
 EXPORT_SYMBOL(new_inode);
 
+/**
+ * unlock_new_inode - clear the I_NEW state and wake up any waiters
+ * @inode:	new inode to unlock
+ *
+ * Called when the inode is fully initialised to clear the new state of the
+ * inode and wake up anyone waiting for the inode to finish initialisation.
+ */
 void unlock_new_inode(struct inode *inode)
 {
 #ifdef CONFIG_DEBUG_LOCK_ALLOC
@@ -859,51 +930,67 @@ void unlock_new_inode(struct inode *inode)
 		}
 	}
 #endif
-	/*
-	 * This is special!  We do not need the spinlock when clearing I_NEW,
-	 * because we're guaranteed that nobody else tries to do anything about
-	 * the state of the inode when it is locked, as we just created it (so
-	 * there can be no old holders that haven't tested I_NEW).
-	 * However we must emit the memory barrier so that other CPUs reliably
-	 * see the clearing of I_NEW after the other inode initialisation has
-	 * completed.
-	 */
-	smp_mb();
+	spin_lock(&inode->i_lock);
 	WARN_ON(!(inode->i_state & I_NEW));
 	inode->i_state &= ~I_NEW;
-	wake_up_inode(inode);
+	wake_up_bit(&inode->i_state, __I_NEW);
+	spin_unlock(&inode->i_lock);
 }
 EXPORT_SYMBOL(unlock_new_inode);
 
-/*
- * This is called without the inode lock held.. Be careful.
+/**
+ * iget5_locked - obtain an inode from a mounted file system
+ * @sb:		super block of file system
+ * @hashval:	hash value (usually inode number) to get
+ * @test:	callback used for comparisons between inodes
+ * @set:	callback used to initialize a new struct inode
+ * @data:	opaque data pointer to pass to @test and @set
+ *
+ * Search for the inode specified by @hashval and @data in the inode cache,
+ * and if present it is return it with an increased reference count. This is
+ * a generalized version of iget_locked() for file systems where the inode
+ * number is not sufficient for unique identification of an inode.
  *
- * We no longer cache the sb_flags in i_flags - see fs.h
- *	-- rmk@arm.uk.linux.org
+ * If the inode is not in cache, allocate a new inode and return it locked,
+ * hashed, and with the I_NEW flag set. The file system gets to fill it in
+ * before unlocking it via unlock_new_inode().
+ *
+ * Note both @test and @set are called with the inode_hash_lock held, so can't
+ * sleep.
  */
-static struct inode *get_new_inode(struct super_block *sb,
-				struct hlist_head *head,
-				int (*test)(struct inode *, void *),
-				int (*set)(struct inode *, void *),
-				void *data)
+struct inode *iget5_locked(struct super_block *sb, unsigned long hashval,
+		int (*test)(struct inode *, void *),
+		int (*set)(struct inode *, void *), void *data)
 {
+	struct hlist_head *head = inode_hashtable + hash(sb, hashval);
 	struct inode *inode;
 
+	spin_lock(&inode_hash_lock);
+	inode = find_inode(sb, head, test, data);
+	spin_unlock(&inode_hash_lock);
+
+	if (inode) {
+		wait_on_inode(inode);
+		return inode;
+	}
+
 	inode = alloc_inode(sb);
 	if (inode) {
 		struct inode *old;
 
-		spin_lock(&inode_lock);
+		spin_lock(&inode_hash_lock);
 		/* We released the lock, so.. */
 		old = find_inode(sb, head, test, data);
 		if (!old) {
 			if (set(inode, data))
 				goto set_failed;
 
-			hlist_add_head(&inode->i_hash, head);
-			__inode_sb_list_add(inode);
+			spin_lock(&inode->i_lock);
 			inode->i_state = I_NEW;
-			spin_unlock(&inode_lock);
+			hlist_add_head(&inode->i_hash, head);
+			spin_unlock(&inode->i_lock);
+			inode_sb_list_add(inode);
+			spin_unlock(&inode_hash_lock);
 
 			/* Return the locked inode with I_NEW set, the
 			 * caller is responsible for filling in the contents
@@ -916,7 +1003,7 @@ static struct inode *get_new_inode(struct super_block *sb,
 		 * us. Use the old inode instead of the one we just
 		 * allocated.
 		 */
-		spin_unlock(&inode_lock);
+		spin_unlock(&inode_hash_lock);
 		destroy_inode(inode);
 		inode = old;
 		wait_on_inode(inode);
@@ -924,33 +1011,53 @@ static struct inode *get_new_inode(struct super_block *sb,
 	return inode;
 
 set_failed:
-	spin_unlock(&inode_lock);
+	spin_unlock(&inode_hash_lock);
 	destroy_inode(inode);
 	return NULL;
 }
+EXPORT_SYMBOL(iget5_locked);
 
-/*
- * get_new_inode_fast is the fast path version of get_new_inode, see the
- * comment at iget_locked for details.
+/**
+ * iget_locked - obtain an inode from a mounted file system
+ * @sb:		super block of file system
+ * @ino:	inode number to get
+ *
+ * Search for the inode specified by @ino in the inode cache and if present
+ * return it with an increased reference count. This is for file systems
+ * where the inode number is sufficient for unique identification of an inode.
+ *
+ * If the inode is not in cache, allocate a new inode and return it locked,
+ * hashed, and with the I_NEW flag set.  The file system gets to fill it in
+ * before unlocking it via unlock_new_inode().
  */
-static struct inode *get_new_inode_fast(struct super_block *sb,
-				struct hlist_head *head, unsigned long ino)
+struct inode *iget_locked(struct super_block *sb, unsigned long ino)
 {
+	struct hlist_head *head = inode_hashtable + hash(sb, ino);
 	struct inode *inode;
 
+	spin_lock(&inode_hash_lock);
+	inode = find_inode_fast(sb, head, ino);
+	spin_unlock(&inode_hash_lock);
+	if (inode) {
+		wait_on_inode(inode);
+		return inode;
+	}
+
 	inode = alloc_inode(sb);
 	if (inode) {
 		struct inode *old;
 
-		spin_lock(&inode_lock);
+		spin_lock(&inode_hash_lock);
 		/* We released the lock, so.. */
 		old = find_inode_fast(sb, head, ino);
 		if (!old) {
 			inode->i_ino = ino;
-			hlist_add_head(&inode->i_hash, head);
-			__inode_sb_list_add(inode);
+			spin_lock(&inode->i_lock);
 			inode->i_state = I_NEW;
-			spin_unlock(&inode_lock);
+			hlist_add_head(&inode->i_hash, head);
+			spin_unlock(&inode->i_lock);
+			inode_sb_list_add(inode);
+			spin_unlock(&inode_hash_lock);
 
 			/* Return the locked inode with I_NEW set, the
 			 * caller is responsible for filling in the contents
@@ -963,13 +1070,14 @@ static struct inode *get_new_inode_fast(struct super_block *sb,
 		 * us. Use the old inode instead of the one we just
 		 * allocated.
 		 */
-		spin_unlock(&inode_lock);
+		spin_unlock(&inode_hash_lock);
 		destroy_inode(inode);
 		inode = old;
 		wait_on_inode(inode);
 	}
 	return inode;
 }
+EXPORT_SYMBOL(iget_locked);
 
 /*
  * search the inode cache for a matching inode number.
@@ -984,10 +1092,14 @@ static int test_inode_iunique(struct super_block *sb, unsigned long ino)
 	struct hlist_node *node;
 	struct inode *inode;
 
+	spin_lock(&inode_hash_lock);
 	hlist_for_each_entry(inode, node, b, i_hash) {
-		if (inode->i_ino == ino && inode->i_sb == sb)
+		if (inode->i_ino == ino && inode->i_sb == sb) {
+			spin_unlock(&inode_hash_lock);
 			return 0;
+		}
 	}
+	spin_unlock(&inode_hash_lock);
 
 	return 1;
 }
@@ -1017,7 +1129,6 @@ ino_t iunique(struct super_block *sb, ino_t max_reserved)
 	static unsigned int counter;
 	ino_t res;
 
-	spin_lock(&inode_lock);
 	spin_lock(&iunique_lock);
 	do {
 		if (counter <= max_reserved)
@@ -1025,7 +1136,6 @@ ino_t iunique(struct super_block *sb, ino_t max_reserved)
 		res = counter++;
 	} while (!test_inode_iunique(sb, res));
 	spin_unlock(&iunique_lock);
-	spin_unlock(&inode_lock);
 
 	return res;
 }
@@ -1033,116 +1143,50 @@ EXPORT_SYMBOL(iunique);
 
 struct inode *igrab(struct inode *inode)
 {
-	spin_lock(&inode_lock);
-	if (!(inode->i_state & (I_FREEING|I_WILL_FREE)))
+	spin_lock(&inode->i_lock);
+	if (!(inode->i_state & (I_FREEING|I_WILL_FREE))) {
 		__iget(inode);
-	else
+		spin_unlock(&inode->i_lock);
+	} else {
+		spin_unlock(&inode->i_lock);
 		/*
 		 * Handle the case where s_op->clear_inode is not been
 		 * called yet, and somebody is calling igrab
 		 * while the inode is getting freed.
 		 */
 		inode = NULL;
-	spin_unlock(&inode_lock);
+	}
 	return inode;
 }
 EXPORT_SYMBOL(igrab);
 
 /**
- * ifind - internal function, you want ilookup5() or iget5().
- * @sb:		super block of file system to search
- * @head:       the head of the list to search
- * @test:	callback used for comparisons between inodes
- * @data:	opaque data pointer to pass to @test
- * @wait:	if true wait for the inode to be unlocked, if false do not
- *
- * ifind() searches for the inode specified by @data in the inode
- * cache. This is a generalized version of ifind_fast() for file systems where
- * the inode number is not sufficient for unique identification of an inode.
- *
- * If the inode is in the cache, the inode is returned with an incremented
- * reference count.
- *
- * Otherwise NULL is returned.
- *
- * Note, @test is called with the inode_lock held, so can't sleep.
- */
-static struct inode *ifind(struct super_block *sb,
-		struct hlist_head *head, int (*test)(struct inode *, void *),
-		void *data, const int wait)
-{
-	struct inode *inode;
-
-	spin_lock(&inode_lock);
-	inode = find_inode(sb, head, test, data);
-	if (inode) {
-		spin_unlock(&inode_lock);
-		if (likely(wait))
-			wait_on_inode(inode);
-		return inode;
-	}
-	spin_unlock(&inode_lock);
-	return NULL;
-}
-
-/**
- * ifind_fast - internal function, you want ilookup() or iget().
- * @sb:		super block of file system to search
- * @head:       head of the list to search
- * @ino:	inode number to search for
- *
- * ifind_fast() searches for the inode @ino in the inode cache. This is for
- * file systems where the inode number is sufficient for unique identification
- * of an inode.
- *
- * If the inode is in the cache, the inode is returned with an incremented
- * reference count.
- *
- * Otherwise NULL is returned.
- */
-static struct inode *ifind_fast(struct super_block *sb,
-		struct hlist_head *head, unsigned long ino)
-{
-	struct inode *inode;
-
-	spin_lock(&inode_lock);
-	inode = find_inode_fast(sb, head, ino);
-	if (inode) {
-		spin_unlock(&inode_lock);
-		wait_on_inode(inode);
-		return inode;
-	}
-	spin_unlock(&inode_lock);
-	return NULL;
-}
-
-/**
  * ilookup5_nowait - search for an inode in the inode cache
  * @sb:		super block of file system to search
  * @hashval:	hash value (usually inode number) to search for
  * @test:	callback used for comparisons between inodes
  * @data:	opaque data pointer to pass to @test
  *
- * ilookup5() uses ifind() to search for the inode specified by @hashval and
- * @data in the inode cache. This is a generalized version of ilookup() for
- * file systems where the inode number is not sufficient for unique
- * identification of an inode.
- *
+ * Search for the inode specified by @hashval and @data in the inode cache.
  * If the inode is in the cache, the inode is returned with an incremented
- * reference count.  Note, the inode lock is not waited upon so you have to be
- * very careful what you do with the returned inode.  You probably should be
- * using ilookup5() instead.
+ * reference count.
  *
- * Otherwise NULL is returned.
+ * Note: I_NEW is not waited upon so you have to be very careful what you do
+ * with the returned inode.  You probably should be using ilookup5() instead.
  *
- * Note, @test is called with the inode_lock held, so can't sleep.
+ * Note2: @test is called with the inode_hash_lock held, so can't sleep.
  */
 struct inode *ilookup5_nowait(struct super_block *sb, unsigned long hashval,
 		int (*test)(struct inode *, void *), void *data)
 {
 	struct hlist_head *head = inode_hashtable + hash(sb, hashval);
+	struct inode *inode;
 
-	return ifind(sb, head, test, data, 0);
+	spin_lock(&inode_hash_lock);
+	inode = find_inode(sb, head, test, data);
+	spin_unlock(&inode_hash_lock);
+
+	return inode;
 }
 EXPORT_SYMBOL(ilookup5_nowait);
 
@@ -1153,24 +1197,24 @@ EXPORT_SYMBOL(ilookup5_nowait);
  * @test:	callback used for comparisons between inodes
  * @data:	opaque data pointer to pass to @test
  *
- * ilookup5() uses ifind() to search for the inode specified by @hashval and
- * @data in the inode cache. This is a generalized version of ilookup() for
- * file systems where the inode number is not sufficient for unique
- * identification of an inode.
- *
- * If the inode is in the cache, the inode lock is waited upon and the inode is
+ * Search for the inode specified by @hashval and @data in the inode cache,
+ * and if the inode is in the cache, return the inode with an incremented
+ * reference count.  Waits on I_NEW before returning the inode.
  * returned with an incremented reference count.
  *
- * Otherwise NULL is returned.
+ * This is a generalized version of ilookup() for file systems where the
+ * inode number is not sufficient for unique identification of an inode.
  *
- * Note, @test is called with the inode_lock held, so can't sleep.
+ * Note: @test is called with the inode_hash_lock held, so can't sleep.
  */
 struct inode *ilookup5(struct super_block *sb, unsigned long hashval,
 		int (*test)(struct inode *, void *), void *data)
 {
-	struct hlist_head *head = inode_hashtable + hash(sb, hashval);
+	struct inode *inode = ilookup5_nowait(sb, hashval, test, data);
 
-	return ifind(sb, head, test, data, 1);
+	if (inode)
+		wait_on_inode(inode);
+	return inode;
 }
 EXPORT_SYMBOL(ilookup5);
 
@@ -1179,91 +1223,23 @@ EXPORT_SYMBOL(ilookup5);
  * @sb:		super block of file system to search
  * @ino:	inode number to search for
  *
- * ilookup() uses ifind_fast() to search for the inode @ino in the inode cache.
- * This is for file systems where the inode number is sufficient for unique
- * identification of an inode.
- *
- * If the inode is in the cache, the inode is returned with an incremented
- * reference count.
- *
- * Otherwise NULL is returned.
+ * Search for the inode @ino in the inode cache, and if the inode is in the
+ * cache, the inode is returned with an incremented reference count.
  */
 struct inode *ilookup(struct super_block *sb, unsigned long ino)
 {
 	struct hlist_head *head = inode_hashtable + hash(sb, ino);
-
-	return ifind_fast(sb, head, ino);
-}
-EXPORT_SYMBOL(ilookup);
-
-/**
- * iget5_locked - obtain an inode from a mounted file system
- * @sb:		super block of file system
- * @hashval:	hash value (usually inode number) to get
- * @test:	callback used for comparisons between inodes
- * @set:	callback used to initialize a new struct inode
- * @data:	opaque data pointer to pass to @test and @set
- *
- * iget5_locked() uses ifind() to search for the inode specified by @hashval
- * and @data in the inode cache and if present it is returned with an increased
- * reference count. This is a generalized version of iget_locked() for file
- * systems where the inode number is not sufficient for unique identification
- * of an inode.
- *
- * If the inode is not in cache, get_new_inode() is called to allocate a new
- * inode and this is returned locked, hashed, and with the I_NEW flag set. The
- * file system gets to fill it in before unlocking it via unlock_new_inode().
- *
- * Note both @test and @set are called with the inode_lock held, so can't sleep.
- */
-struct inode *iget5_locked(struct super_block *sb, unsigned long hashval,
-		int (*test)(struct inode *, void *),
-		int (*set)(struct inode *, void *), void *data)
-{
-	struct hlist_head *head = inode_hashtable + hash(sb, hashval);
 	struct inode *inode;
 
-	inode = ifind(sb, head, test, data, 1);
-	if (inode)
-		return inode;
-	/*
-	 * get_new_inode() will do the right thing, re-trying the search
-	 * in case it had to block at any point.
-	 */
-	return get_new_inode(sb, head, test, set, data);
-}
-EXPORT_SYMBOL(iget5_locked);
-
-/**
- * iget_locked - obtain an inode from a mounted file system
- * @sb:		super block of file system
- * @ino:	inode number to get
- *
- * iget_locked() uses ifind_fast() to search for the inode specified by @ino in
- * the inode cache and if present it is returned with an increased reference
- * count. This is for file systems where the inode number is sufficient for
- * unique identification of an inode.
- *
- * If the inode is not in cache, get_new_inode_fast() is called to allocate a
- * new inode and this is returned locked, hashed, and with the I_NEW flag set.
- * The file system gets to fill it in before unlocking it via
- * unlock_new_inode().
- */
-struct inode *iget_locked(struct super_block *sb, unsigned long ino)
-{
-	struct hlist_head *head = inode_hashtable + hash(sb, ino);
-	struct inode *inode;
+	spin_lock(&inode_hash_lock);
+	inode = find_inode_fast(sb, head, ino);
+	spin_unlock(&inode_hash_lock);
 
-	inode = ifind_fast(sb, head, ino);
 	if (inode)
-		return inode;
-	/*
-	 * get_new_inode_fast() will do the right thing, re-trying the search
-	 * in case it had to block at any point.
-	 */
-	return get_new_inode_fast(sb, head, ino);
+		wait_on_inode(inode);
+	return inode;
 }
-EXPORT_SYMBOL(iget_locked);
+EXPORT_SYMBOL(ilookup);
 
 int insert_inode_locked(struct inode *inode)
 {
@@ -1271,27 +1247,33 @@ int insert_inode_locked(struct inode *inode)
 	ino_t ino = inode->i_ino;
 	struct hlist_head *head = inode_hashtable + hash(sb, ino);
 
-	inode->i_state |= I_NEW;
 	while (1) {
 		struct hlist_node *node;
 		struct inode *old = NULL;
-		spin_lock(&inode_lock);
+		spin_lock(&inode_hash_lock);
 		hlist_for_each_entry(old, node, head, i_hash) {
 			if (old->i_ino != ino)
 				continue;
 			if (old->i_sb != sb)
 				continue;
-			if (old->i_state & (I_FREEING|I_WILL_FREE))
+			spin_lock(&old->i_lock);
+			if (old->i_state & (I_FREEING|I_WILL_FREE)) {
+				spin_unlock(&old->i_lock);
 				continue;
+			}
 			break;
 		}
 		if (likely(!node)) {
+			spin_lock(&inode->i_lock);
+			inode->i_state |= I_NEW;
 			hlist_add_head(&inode->i_hash, head);
-			spin_unlock(&inode_lock);
+			spin_unlock(&inode->i_lock);
+			spin_unlock(&inode_hash_lock);
 			return 0;
 		}
 		__iget(old);
-		spin_unlock(&inode_lock);
+		spin_unlock(&old->i_lock);
+		spin_unlock(&inode_hash_lock);
 		wait_on_inode(old);
 		if (unlikely(!inode_unhashed(old))) {
 			iput(old);
@@ -1308,29 +1290,34 @@ int insert_inode_locked4(struct inode *inode, unsigned long hashval,
 	struct super_block *sb = inode->i_sb;
 	struct hlist_head *head = inode_hashtable + hash(sb, hashval);
 
-	inode->i_state |= I_NEW;
-
 	while (1) {
 		struct hlist_node *node;
 		struct inode *old = NULL;
 
-		spin_lock(&inode_lock);
+		spin_lock(&inode_hash_lock);
 		hlist_for_each_entry(old, node, head, i_hash) {
 			if (old->i_sb != sb)
 				continue;
 			if (!test(old, data))
 				continue;
-			if (old->i_state & (I_FREEING|I_WILL_FREE))
+			spin_lock(&old->i_lock);
+			if (old->i_state & (I_FREEING|I_WILL_FREE)) {
+				spin_unlock(&old->i_lock);
 				continue;
+			}
 			break;
 		}
 		if (likely(!node)) {
+			spin_lock(&inode->i_lock);
+			inode->i_state |= I_NEW;
 			hlist_add_head(&inode->i_hash, head);
-			spin_unlock(&inode_lock);
+			spin_unlock(&inode->i_lock);
+			spin_unlock(&inode_hash_lock);
 			return 0;
 		}
 		__iget(old);
-		spin_unlock(&inode_lock);
+		spin_unlock(&old->i_lock);
+		spin_unlock(&inode_hash_lock);
 		wait_on_inode(old);
 		if (unlikely(!inode_unhashed(old))) {
 			iput(old);
@@ -1375,47 +1362,35 @@ static void iput_final(struct inode *inode)
 	const struct super_operations *op = inode->i_sb->s_op;
 	int drop;
 
+	WARN_ON(inode->i_state & I_NEW);
+
 	if (op && op->drop_inode)
 		drop = op->drop_inode(inode);
 	else
 		drop = generic_drop_inode(inode);
 
+	if (!drop && (sb->s_flags & MS_ACTIVE)) {
+		inode->i_state |= I_REFERENCED;
+		if (!(inode->i_state & (I_DIRTY|I_SYNC)))
+			inode_lru_list_add(inode);
+		spin_unlock(&inode->i_lock);
+		return;
+	}
+
 	if (!drop) {
-		if (sb->s_flags & MS_ACTIVE) {
-			inode->i_state |= I_REFERENCED;
-			if (!(inode->i_state & (I_DIRTY|I_SYNC))) {
-				inode_lru_list_add(inode);
-			}
-			spin_unlock(&inode_lock);
-			return;
-		}
-		WARN_ON(inode->i_state & I_NEW);
 		inode->i_state |= I_WILL_FREE;
-		spin_unlock(&inode_lock);
+		spin_unlock(&inode->i_lock);
 		write_inode_now(inode, 1);
-		spin_lock(&inode_lock);
+		spin_lock(&inode->i_lock);
 		WARN_ON(inode->i_state & I_NEW);
 		inode->i_state &= ~I_WILL_FREE;
-		__remove_inode_hash(inode);
 	}
 
-	WARN_ON(inode->i_state & I_NEW);
 	inode->i_state |= I_FREEING;
-
-	/*
-	 * Move the inode off the IO lists and LRU once I_FREEING is
-	 * set so that it won't get moved back on there if it is dirty.
-	 */
 	inode_lru_list_del(inode);
-	list_del_init(&inode->i_wb_list);
+	spin_unlock(&inode->i_lock);
 
-	__inode_sb_list_del(inode);
-	spin_unlock(&inode_lock);
 	evict(inode);
-	remove_inode_hash(inode);
-	wake_up_inode(inode);
-	BUG_ON(inode->i_state != (I_FREEING | I_CLEAR));
-	destroy_inode(inode);
 }
 
 /**
@@ -1432,7 +1407,7 @@ void iput(struct inode *inode)
 	if (inode) {
 		BUG_ON(inode->i_state & I_CLEAR);
 
-		if (atomic_dec_and_lock(&inode->i_count, &inode_lock))
+		if (atomic_dec_and_lock(&inode->i_count, &inode->i_lock))
 			iput_final(inode);
 	}
 }
@@ -1611,9 +1586,8 @@ EXPORT_SYMBOL(inode_wait);
  * to recheck inode state.
  *
  * It doesn't matter if I_NEW is not set initially, a call to
- * wake_up_inode() after removing from the hash list will DTRT.
- *
- * This is called with inode_lock held.
+ * wake_up_bit(&inode->i_state, __I_NEW) after removing from the hash list
+ * will DTRT.
  */
 static void __wait_on_freeing_inode(struct inode *inode)
 {
@@ -1621,10 +1595,11 @@ static void __wait_on_freeing_inode(struct inode *inode)
 	DEFINE_WAIT_BIT(wait, &inode->i_state, __I_NEW);
 	wq = bit_waitqueue(&inode->i_state, __I_NEW);
 	prepare_to_wait(wq, &wait.wait, TASK_UNINTERRUPTIBLE);
-	spin_unlock(&inode_lock);
+	spin_unlock(&inode->i_lock);
+	spin_unlock(&inode_hash_lock);
 	schedule();
 	finish_wait(wq, &wait.wait);
-	spin_lock(&inode_lock);
+	spin_lock(&inode_hash_lock);
 }
 
 static __initdata unsigned long ihash_entries;
diff --git a/fs/internal.h b/fs/internal.h
index 8318059b42c6..b29c46e4e32f 100644
--- a/fs/internal.h
+++ b/fs/internal.h
@@ -125,6 +125,13 @@ extern long do_handle_open(int mountdirfd,
 /*
  * inode.c
  */
+extern spinlock_t inode_sb_list_lock;
+
+/*
+ * fs-writeback.c
+ */
+extern void inode_wb_list_del(struct inode *inode);
+
 extern int get_nr_dirty_inodes(void);
 extern void evict_inodes(struct super_block *);
 extern int invalidate_inodes(struct super_block *, bool);
diff --git a/fs/jbd/commit.c b/fs/jbd/commit.c
index da871ee084d3..69b180459463 100644
--- a/fs/jbd/commit.c
+++ b/fs/jbd/commit.c
@@ -362,7 +362,7 @@ void journal_commit_transaction(journal_t *journal)
 	 * we do not require it to remember exactly which old buffers it
 	 * has reserved.  This is consistent with the existing behaviour
 	 * that multiple journal_get_write_access() calls to the same
-	 * buffer are perfectly permissable.
+	 * buffer are perfectly permissible.
 	 */
 	while (commit_transaction->t_reserved_list) {
 		jh = commit_transaction->t_reserved_list;
diff --git a/fs/jbd/journal.c b/fs/jbd/journal.c
index eb11601f2e00..b3713afaaa9e 100644
--- a/fs/jbd/journal.c
+++ b/fs/jbd/journal.c
@@ -770,7 +770,7 @@ journal_t * journal_init_dev(struct block_device *bdev,
 	journal->j_wbufsize = n;
 	journal->j_wbuf = kmalloc(n * sizeof(struct buffer_head*), GFP_KERNEL);
 	if (!journal->j_wbuf) {
-		printk(KERN_ERR "%s: Cant allocate bhs for commit thread\n",
+		printk(KERN_ERR "%s: Can't allocate bhs for commit thread\n",
 			__func__);
 		goto out_err;
 	}
@@ -831,7 +831,7 @@ journal_t * journal_init_inode (struct inode *inode)
 	journal->j_wbufsize = n;
 	journal->j_wbuf = kmalloc(n * sizeof(struct buffer_head*), GFP_KERNEL);
 	if (!journal->j_wbuf) {
-		printk(KERN_ERR "%s: Cant allocate bhs for commit thread\n",
+		printk(KERN_ERR "%s: Can't allocate bhs for commit thread\n",
 			__func__);
 		goto out_err;
 	}
diff --git a/fs/jbd/revoke.c b/fs/jbd/revoke.c
index d29018307e2e..305a90763154 100644
--- a/fs/jbd/revoke.c
+++ b/fs/jbd/revoke.c
@@ -71,7 +71,7 @@
  * switching hash tables under them. For operations on the lists of entries in
  * the hash table j_revoke_lock is used.
  *
- * Finally, also replay code uses the hash tables but at this moment noone else
+ * Finally, also replay code uses the hash tables but at this moment no one else
  * can touch them (filesystem isn't mounted yet) and hence no locking is
  * needed.
  */
diff --git a/fs/jbd/transaction.c b/fs/jbd/transaction.c
index 5b2e4c30a2a1..60d2319651b2 100644
--- a/fs/jbd/transaction.c
+++ b/fs/jbd/transaction.c
@@ -1392,7 +1392,7 @@ int journal_stop(handle_t *handle)
 	 * by 30x or more...
 	 *
 	 * We try and optimize the sleep time against what the underlying disk
-	 * can do, instead of having a static sleep time.  This is usefull for
+	 * can do, instead of having a static sleep time.  This is useful for
 	 * the case where our storage is so fast that it is more optimal to go
 	 * ahead and force a flush and wait for the transaction to be committed
 	 * than it is to wait for an arbitrary amount of time for new writers to
diff --git a/fs/jbd2/commit.c b/fs/jbd2/commit.c
index fa36d7662b21..20af62f4304b 100644
--- a/fs/jbd2/commit.c
+++ b/fs/jbd2/commit.c
@@ -403,7 +403,7 @@ void jbd2_journal_commit_transaction(journal_t *journal)
 	 * we do not require it to remember exactly which old buffers it
 	 * has reserved.  This is consistent with the existing behaviour
 	 * that multiple jbd2_journal_get_write_access() calls to the same
-	 * buffer are perfectly permissable.
+	 * buffer are perfectly permissible.
 	 */
 	while (commit_transaction->t_reserved_list) {
 		jh = commit_transaction->t_reserved_list;
diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
index 90407b8fece7..aba8ebaec25c 100644
--- a/fs/jbd2/journal.c
+++ b/fs/jbd2/journal.c
@@ -917,7 +917,7 @@ journal_t * jbd2_journal_init_dev(struct block_device *bdev,
 	journal->j_wbufsize = n;
 	journal->j_wbuf = kmalloc(n * sizeof(struct buffer_head*), GFP_KERNEL);
 	if (!journal->j_wbuf) {
-		printk(KERN_ERR "%s: Cant allocate bhs for commit thread\n",
+		printk(KERN_ERR "%s: Can't allocate bhs for commit thread\n",
 			__func__);
 		goto out_err;
 	}
@@ -983,7 +983,7 @@ journal_t * jbd2_journal_init_inode (struct inode *inode)
 	journal->j_wbufsize = n;
 	journal->j_wbuf = kmalloc(n * sizeof(struct buffer_head*), GFP_KERNEL);
 	if (!journal->j_wbuf) {
-		printk(KERN_ERR "%s: Cant allocate bhs for commit thread\n",
+		printk(KERN_ERR "%s: Can't allocate bhs for commit thread\n",
 			__func__);
 		goto out_err;
 	}
diff --git a/fs/jbd2/revoke.c b/fs/jbd2/revoke.c
index 9ad321fd63fd..69fd93588118 100644
--- a/fs/jbd2/revoke.c
+++ b/fs/jbd2/revoke.c
@@ -71,7 +71,7 @@
  * switching hash tables under them. For operations on the lists of entries in
  * the hash table j_revoke_lock is used.
  *
- * Finally, also replay code uses the hash tables but at this moment noone else
+ * Finally, also replay code uses the hash tables but at this moment no one else
  * can touch them (filesystem isn't mounted yet) and hence no locking is
  * needed.
  */
diff --git a/fs/jbd2/transaction.c b/fs/jbd2/transaction.c
index 1d1191050f99..05fa77a23711 100644
--- a/fs/jbd2/transaction.c
+++ b/fs/jbd2/transaction.c
@@ -1403,7 +1403,7 @@ int jbd2_journal_stop(handle_t *handle)
 
 	/*
 	 * Once we drop t_updates, if it goes to zero the transaction
-	 * could start commiting on us and eventually disappear.  So
+	 * could start committing on us and eventually disappear.  So
 	 * once we do this, we must not dereference transaction
 	 * pointer again.
 	 */
diff --git a/fs/jffs2/TODO b/fs/jffs2/TODO
index 5d3ea4070f01..ca28964abd4b 100644
--- a/fs/jffs2/TODO
+++ b/fs/jffs2/TODO
@@ -11,7 +11,7 @@
  - checkpointing (do we need this? scan is quite fast)
  - make the scan code populate real inodes so read_inode just after 
 	mount doesn't have to read the flash twice for large files.
-	Make this a per-inode option, changable with chattr, so you can
+	Make this a per-inode option, changeable with chattr, so you can
 	decide which inodes should be in-core immediately after mount.
  - test, test, test
 
diff --git a/fs/jffs2/readinode.c b/fs/jffs2/readinode.c
index d32ee9412cb9..2ab1a0d91210 100644
--- a/fs/jffs2/readinode.c
+++ b/fs/jffs2/readinode.c
@@ -24,7 +24,7 @@
  *
  * Returns: 0 if the data CRC is correct;
  * 	    1 - if incorrect;
- *	    error code if an error occured.
+ *	    error code if an error occurred.
  */
 static int check_node_data(struct jffs2_sb_info *c, struct jffs2_tmp_dnode_info *tn)
 {
diff --git a/fs/jffs2/summary.c b/fs/jffs2/summary.c
index 800171dca53b..e537fb0e0184 100644
--- a/fs/jffs2/summary.c
+++ b/fs/jffs2/summary.c
@@ -121,7 +121,7 @@ int jffs2_sum_add_inode_mem(struct jffs2_summary *s, struct jffs2_raw_inode *ri,
 	temp->nodetype = ri->nodetype;
 	temp->inode = ri->ino;
 	temp->version = ri->version;
-	temp->offset = cpu_to_je32(ofs); /* relative offset from the begining of the jeb */
+	temp->offset = cpu_to_je32(ofs); /* relative offset from the beginning of the jeb */
 	temp->totlen = ri->totlen;
 	temp->next = NULL;
 
@@ -139,7 +139,7 @@ int jffs2_sum_add_dirent_mem(struct jffs2_summary *s, struct jffs2_raw_dirent *r
 
 	temp->nodetype = rd->nodetype;
 	temp->totlen = rd->totlen;
-	temp->offset = cpu_to_je32(ofs);	/* relative from the begining of the jeb */
+	temp->offset = cpu_to_je32(ofs);	/* relative from the beginning of the jeb */
 	temp->pino = rd->pino;
 	temp->version = rd->version;
 	temp->ino = rd->ino;
diff --git a/fs/jffs2/wbuf.c b/fs/jffs2/wbuf.c
index 07ee1546b2fa..4515bea0268f 100644
--- a/fs/jffs2/wbuf.c
+++ b/fs/jffs2/wbuf.c
@@ -1116,7 +1116,7 @@ int jffs2_write_nand_cleanmarker(struct jffs2_sb_info *c,
 
 /*
  * On NAND we try to mark this block bad. If the block was erased more
- * than MAX_ERASE_FAILURES we mark it finaly bad.
+ * than MAX_ERASE_FAILURES we mark it finally bad.
  * Don't care about failures. This block remains on the erase-pending
  * or badblock list as long as nobody manipulates the flash with
  * a bootloader or something like that.
diff --git a/fs/jffs2/xattr.c b/fs/jffs2/xattr.c
index 4f9cc0482949..3e93cdd19005 100644
--- a/fs/jffs2/xattr.c
+++ b/fs/jffs2/xattr.c
@@ -31,7 +31,7 @@
  *   is used to release xattr name/value pair and detach from c->xattrindex.
  * reclaim_xattr_datum(c)
  *   is used to reclaim xattr name/value pairs on the xattr name/value pair cache when
- *   memory usage by cache is over c->xdatum_mem_threshold. Currently, this threshold 
+ *   memory usage by cache is over c->xdatum_mem_threshold. Currently, this threshold
  *   is hard coded as 32KiB.
  * do_verify_xattr_datum(c, xd)
  *   is used to load the xdatum informations without name/value pair from the medium.
diff --git a/fs/jfs/jfs_dmap.c b/fs/jfs/jfs_dmap.c
index c92ea3b3ea5e..4496872cf4e7 100644
--- a/fs/jfs/jfs_dmap.c
+++ b/fs/jfs/jfs_dmap.c
@@ -1649,7 +1649,7 @@ static int dbFindCtl(struct bmap * bmp, int l2nb, int level, s64 * blkno)
 		}
 
 		/* search the tree within the dmap control page for
-		 * sufficent free space.  if sufficient free space is found,
+		 * sufficient free space.  if sufficient free space is found,
 		 * dbFindLeaf() returns the index of the leaf at which
 		 * free space was found.
 		 */
@@ -2744,7 +2744,7 @@ static int dbJoin(dmtree_t * tp, int leafno, int newval)
 			/* check which (leafno or buddy) is the left buddy.
 			 * the left buddy gets to claim the blocks resulting
 			 * from the join while the right gets to claim none.
-			 * the left buddy is also eligable to participate in
+			 * the left buddy is also eligible to participate in
 			 * a join at the next higher level while the right
 			 * is not.
 			 *
diff --git a/fs/jfs/jfs_extent.c b/fs/jfs/jfs_extent.c
index 5d3bbd10f8db..e5fe8506ed16 100644
--- a/fs/jfs/jfs_extent.c
+++ b/fs/jfs/jfs_extent.c
@@ -126,7 +126,7 @@ extAlloc(struct inode *ip, s64 xlen, s64 pno, xad_t * xp, bool abnr)
 
 	/* allocate the disk blocks for the extent.  initially, extBalloc()
 	 * will try to allocate disk blocks for the requested size (xlen).
-	 * if this fails (xlen contiguous free blocks not avaliable), it'll
+	 * if this fails (xlen contiguous free blocks not available), it'll
 	 * try to allocate a smaller number of blocks (producing a smaller
 	 * extent), with this smaller number of blocks consisting of the
 	 * requested number of blocks rounded down to the next smaller
@@ -481,7 +481,7 @@ int extFill(struct inode *ip, xad_t * xp)
  *
  *		initially, we will try to allocate disk blocks for the
  *		requested size (nblocks).  if this fails (nblocks
- *		contiguous free blocks not avaliable), we'll try to allocate
+ *		contiguous free blocks not available), we'll try to allocate
  *		a smaller number of blocks (producing a smaller extent), with
  *		this smaller number of blocks consisting of the requested
  *		number of blocks rounded down to the next smaller power of 2
@@ -575,7 +575,7 @@ extBalloc(struct inode *ip, s64 hint, s64 * nblocks, s64 * blkno)
  *		to a new set of blocks.  If moving the extent, we initially
  *		will try to allocate disk blocks for the requested size
  *		(newnblks).  if this fails (new contiguous free blocks not
- *		avaliable), we'll try to allocate a smaller number of
+ *		available), we'll try to allocate a smaller number of
  *		blocks (producing a smaller extent), with this smaller
  *		number of blocks consisting of the requested number of
  *		blocks rounded down to the next smaller power of 2
diff --git a/fs/jfs/jfs_imap.c b/fs/jfs/jfs_imap.c
index 3a09423b6c22..ed53a4740168 100644
--- a/fs/jfs/jfs_imap.c
+++ b/fs/jfs/jfs_imap.c
@@ -1069,7 +1069,7 @@ int diFree(struct inode *ip)
 		 */
 		if (iagp->nfreeexts == cpu_to_le32(EXTSPERIAG - 1)) {
 			/* in preparation for removing the iag from the
-			 * ag extent free list, read the iags preceeding
+			 * ag extent free list, read the iags preceding
 			 * and following the iag on the ag extent free
 			 * list.
 			 */
@@ -1095,7 +1095,7 @@ int diFree(struct inode *ip)
 		int inofreefwd = le32_to_cpu(iagp->inofreefwd);
 
 		/* in preparation for removing the iag from the
-		 * ag inode free list, read the iags preceeding
+		 * ag inode free list, read the iags preceding
 		 * and following the iag on the ag inode free
 		 * list.  before reading these iags, we must make
 		 * sure that we already don't have them in hand
@@ -1681,7 +1681,7 @@ diAllocAG(struct inomap * imap, int agno, bool dir, struct inode *ip)
 	 * try to allocate a new extent of free inodes.
 	 */
 	if (addext) {
-		/* if free space is not avaliable for this new extent, try
+		/* if free space is not available for this new extent, try
 		 * below to allocate a free and existing (already backed)
 		 * inode from the ag.
 		 */
@@ -2036,7 +2036,7 @@ static int diAllocBit(struct inomap * imap, struct iag * iagp, int ino)
 
 	/* check if this is the last free inode within the iag.
 	 * if so, it will have to be removed from the ag free
-	 * inode list, so get the iags preceeding and following
+	 * inode list, so get the iags preceding and following
 	 * it on the list.
 	 */
 	if (iagp->nfreeinos == cpu_to_le32(1)) {
@@ -2208,7 +2208,7 @@ static int diNewExt(struct inomap * imap, struct iag * iagp, int extno)
 
 	/* check if this is the last free extent within the
 	 * iag.  if so, the iag must be removed from the ag
-	 * free extent list, so get the iags preceeding and
+	 * free extent list, so get the iags preceding and
 	 * following the iag on this list.
 	 */
 	if (iagp->nfreeexts == cpu_to_le32(1)) {
@@ -2504,7 +2504,7 @@ diNewIAG(struct inomap * imap, int *iagnop, int agno, struct metapage ** mpp)
 		}
 
 
-		/* get the next avaliable iag number */
+		/* get the next available iag number */
 		iagno = imap->im_nextiag;
 
 		/* make sure that we have not exceeded the maximum inode
@@ -2615,7 +2615,7 @@ diNewIAG(struct inomap * imap, int *iagnop, int agno, struct metapage ** mpp)
 
 		duplicateIXtree(sb, blkno, xlen, &xaddr);
 
-		/* update the next avaliable iag number */
+		/* update the next available iag number */
 		imap->im_nextiag += 1;
 
 		/* Add the iag to the iag free list so we don't lose the iag
diff --git a/fs/jfs/jfs_logmgr.h b/fs/jfs/jfs_logmgr.h
index 9236bc49ae7f..e38c21598850 100644
--- a/fs/jfs/jfs_logmgr.h
+++ b/fs/jfs/jfs_logmgr.h
@@ -288,7 +288,7 @@ struct lrd {
 		/*
 		 *	SYNCPT: log sync point
 		 *
-		 * replay log upto syncpt address specified;
+		 * replay log up to syncpt address specified;
 		 */
 		struct {
 			__le32 sync;	/* 4: syncpt address (0 = here) */
diff --git a/fs/jfs/jfs_metapage.h b/fs/jfs/jfs_metapage.h
index d94f8d9e87d7..a78beda85f68 100644
--- a/fs/jfs/jfs_metapage.h
+++ b/fs/jfs/jfs_metapage.h
@@ -75,7 +75,7 @@ extern void grab_metapage(struct metapage *);
 extern void force_metapage(struct metapage *);
 
 /*
- * hold_metapage and put_metapage are used in conjuction.  The page lock
+ * hold_metapage and put_metapage are used in conjunction.  The page lock
  * is not dropped between the two, so no other threads can get or release
  * the metapage
  */
diff --git a/fs/jfs/jfs_txnmgr.c b/fs/jfs/jfs_txnmgr.c
index 9466957ec841..f6cc0c09ec63 100644
--- a/fs/jfs/jfs_txnmgr.c
+++ b/fs/jfs/jfs_txnmgr.c
@@ -636,7 +636,7 @@ struct tlock *txLock(tid_t tid, struct inode *ip, struct metapage * mp,
 	 * the inode of the page and available to all anonymous
 	 * transactions until txCommit() time at which point
 	 * they are transferred to the transaction tlock list of
-	 * the commiting transaction of the inode)
+	 * the committing transaction of the inode)
 	 */
 	if (xtid == 0) {
 		tlck->tid = tid;
diff --git a/fs/jfs/resize.c b/fs/jfs/resize.c
index 1aba0039f1c9..8ea5efb5a34e 100644
--- a/fs/jfs/resize.c
+++ b/fs/jfs/resize.c
@@ -57,7 +57,7 @@
  * 2. compute new FSCKSize from new LVSize;
  * 3. set new FSSize as MIN(FSSize, LVSize-(LogSize+FSCKSize)) where
  *    assert(new FSSize >= old FSSize),
- *    i.e., file system must not be shrinked;
+ *    i.e., file system must not be shrunk;
  */
 int jfs_extendfs(struct super_block *sb, s64 newLVSize, int newLogSize)
 {
@@ -182,7 +182,7 @@ int jfs_extendfs(struct super_block *sb, s64 newLVSize, int newLogSize)
 	 */
 	newFSSize = newLVSize - newLogSize - newFSCKSize;
 
-	/* file system cannot be shrinked */
+	/* file system cannot be shrunk */
 	if (newFSSize < bmp->db_mapsize) {
 		rc = -EINVAL;
 		goto out;
diff --git a/fs/jfs/super.c b/fs/jfs/super.c
index eeca48a031ab..06c8a67cbe76 100644
--- a/fs/jfs/super.c
+++ b/fs/jfs/super.c
@@ -644,7 +644,7 @@ static int jfs_show_options(struct seq_file *seq, struct vfsmount *vfs)
 
 /* Read data from quotafile - avoid pagecache and such because we cannot afford
  * acquiring the locks... As quota files are never truncated and quota code
- * itself serializes the operations (and noone else should touch the files)
+ * itself serializes the operations (and no one else should touch the files)
  * we don't have to be afraid of races */
 static ssize_t jfs_quota_read(struct super_block *sb, int type, char *data,
 			      size_t len, loff_t off)
diff --git a/fs/logfs/dev_mtd.c b/fs/logfs/dev_mtd.c
index 7466e9dcc8c5..339e17e9133d 100644
--- a/fs/logfs/dev_mtd.c
+++ b/fs/logfs/dev_mtd.c
@@ -60,7 +60,7 @@ static int mtd_write(struct super_block *sb, loff_t ofs, size_t len, void *buf)
  * asynchronous properties.  So just to prevent the first implementor of such
  * a thing from breaking logfs in 2350, we do the usual pointless dance to
  * declare a completion variable and wait for completion before returning
- * from mtd_erase().  What an excercise in futility!
+ * from mtd_erase().  What an exercise in futility!
  */
 static void logfs_erase_callback(struct erase_info *ei)
 {
diff --git a/fs/logfs/dir.c b/fs/logfs/dir.c
index f9ddf0c388c8..9ed89d1663f8 100644
--- a/fs/logfs/dir.c
+++ b/fs/logfs/dir.c
@@ -92,7 +92,7 @@ static int beyond_eof(struct inode *inode, loff_t bix)
  * so short names (len <= 9) don't even occupy the complete 32bit name
  * space.  A prime >256 ensures short names quickly spread the 32bit
  * name space.  Add about 26 for the estimated amount of information
- * of each character and pick a prime nearby, preferrably a bit-sparse
+ * of each character and pick a prime nearby, preferably a bit-sparse
  * one.
  */
 static u32 hash_32(const char *s, int len, u32 seed)
diff --git a/fs/logfs/inode.c b/fs/logfs/inode.c
index 03b8c240aeda..edfea7a3a747 100644
--- a/fs/logfs/inode.c
+++ b/fs/logfs/inode.c
@@ -293,7 +293,7 @@ static int logfs_write_inode(struct inode *inode, struct writeback_control *wbc)
 	return ret;
 }
 
-/* called with inode_lock held */
+/* called with inode->i_lock held */
 static int logfs_drop_inode(struct inode *inode)
 {
 	struct logfs_super *super = logfs_super(inode->i_sb);
diff --git a/fs/logfs/readwrite.c b/fs/logfs/readwrite.c
index ee99a9f5dfd3..9e22085231b3 100644
--- a/fs/logfs/readwrite.c
+++ b/fs/logfs/readwrite.c
@@ -1616,7 +1616,7 @@ int logfs_rewrite_block(struct inode *inode, u64 bix, u64 ofs,
 		err = logfs_write_buf(inode, page, flags);
 		if (!err && shrink_level(gc_level) == 0) {
 			/* Rewrite cannot mark the inode dirty but has to
-			 * write it immediatly.
+			 * write it immediately.
 			 * Q: Can't we just create an alias for the inode
 			 * instead?  And if not, why not?
 			 */
diff --git a/fs/mbcache.c b/fs/mbcache.c
index a25444ab2baf..2f174be06555 100644
--- a/fs/mbcache.c
+++ b/fs/mbcache.c
@@ -542,7 +542,7 @@ __mb_cache_entry_find(struct list_head *l, struct list_head *head,
  * mb_cache_entry_find_first()
  *
  * Find the first cache entry on a given device with a certain key in
- * an additional index. Additonal matches can be found with
+ * an additional index. Additional matches can be found with
  * mb_cache_entry_find_next(). Returns NULL if no match was found. The
  * returned cache entry is locked for shared access ("multiple readers").
  *
diff --git a/fs/namei.c b/fs/namei.c
index d0066e17d45d..e6cd6113872c 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -70,7 +70,7 @@
  * name indicated by the symlink. The old code always complained that the
  * name already exists, due to not following the symlink even if its target
  * is nonexistent.  The new semantics affects also mknod() and link() when
- * the name is a symlink pointing to a non-existant name.
+ * the name is a symlink pointing to a non-existent name.
  *
  * I don't know which semantics is the right one, since I have no access
  * to standards. But I found by trial that HP-UX 9.0 has the full "new"
@@ -992,6 +992,12 @@ int follow_down_one(struct path *path)
 	return 0;
 }
 
+static inline bool managed_dentry_might_block(struct dentry *dentry)
+{
+	return (dentry->d_flags & DCACHE_MANAGE_TRANSIT &&
+		dentry->d_op->d_manage(dentry, true) < 0);
+}
+
 /*
  * Skip to top of mountpoint pile in rcuwalk mode.  We abort the rcu-walk if we
  * meet a managed dentry and we're not walking to "..".  True is returned to
@@ -1000,19 +1006,26 @@ int follow_down_one(struct path *path)
 static bool __follow_mount_rcu(struct nameidata *nd, struct path *path,
 			       struct inode **inode, bool reverse_transit)
 {
-	while (d_mountpoint(path->dentry)) {
+	for (;;) {
 		struct vfsmount *mounted;
-		if (unlikely(path->dentry->d_flags & DCACHE_MANAGE_TRANSIT) &&
-		    !reverse_transit &&
-		    path->dentry->d_op->d_manage(path->dentry, true) < 0)
+		/*
+		 * Don't forget we might have a non-mountpoint managed dentry
+		 * that wants to block transit.
+		 */
+		*inode = path->dentry->d_inode;
+		if (!reverse_transit &&
+		     unlikely(managed_dentry_might_block(path->dentry)))
 			return false;
+
+		if (!d_mountpoint(path->dentry))
+			break;
+
 		mounted = __lookup_mnt(path->mnt, path->dentry, 1);
 		if (!mounted)
 			break;
 		path->mnt = mounted;
 		path->dentry = mounted->mnt_root;
 		nd->seq = read_seqcount_begin(&path->dentry->d_seq);
-		*inode = path->dentry->d_inode;
 	}
 
 	if (unlikely(path->dentry->d_flags & DCACHE_NEED_AUTOMOUNT))
diff --git a/fs/ncpfs/inode.c b/fs/ncpfs/inode.c
index 00a1d1c3d3a4..0250e4ce4893 100644
--- a/fs/ncpfs/inode.c
+++ b/fs/ncpfs/inode.c
@@ -596,7 +596,7 @@ static int ncp_fill_super(struct super_block *sb, void *raw_data, int silent)
 /*	server->priv.data = NULL;		*/
 
 	server->m = data;
-	/* Althought anything producing this is buggy, it happens
+	/* Although anything producing this is buggy, it happens
 	   now because of PATH_MAX changes.. */
 	if (server->m.time_out < 1) {
 		server->m.time_out = 10;
diff --git a/fs/nfs/callback_xdr.c b/fs/nfs/callback_xdr.c
index 14e0f9371d14..00ecf62ce7c1 100644
--- a/fs/nfs/callback_xdr.c
+++ b/fs/nfs/callback_xdr.c
@@ -241,7 +241,7 @@ static __be32 decode_layoutrecall_args(struct svc_rqst *rqstp,
 
 	args->cbl_layout_type = ntohl(*p++);
 	/* Depite the spec's xdr, iomode really belongs in the FILE switch,
-	 * as it is unuseable and ignored with the other types.
+	 * as it is unusable and ignored with the other types.
 	 */
 	iomode = ntohl(*p++);
 	args->cbl_layoutchanged = ntohl(*p++);
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index abdf38d5971d..7237672216c8 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -44,6 +44,7 @@
 /* #define NFS_DEBUG_VERBOSE 1 */
 
 static int nfs_opendir(struct inode *, struct file *);
+static int nfs_closedir(struct inode *, struct file *);
 static int nfs_readdir(struct file *, void *, filldir_t);
 static struct dentry *nfs_lookup(struct inode *, struct dentry *, struct nameidata *);
 static int nfs_create(struct inode *, struct dentry *, int, struct nameidata *);
@@ -64,7 +65,7 @@ const struct file_operations nfs_dir_operations = {
 	.read		= generic_read_dir,
 	.readdir	= nfs_readdir,
 	.open		= nfs_opendir,
-	.release	= nfs_release,
+	.release	= nfs_closedir,
 	.fsync		= nfs_fsync_dir,
 };
 
@@ -133,13 +134,35 @@ const struct inode_operations nfs4_dir_inode_operations = {
 
 #endif /* CONFIG_NFS_V4 */
 
+static struct nfs_open_dir_context *alloc_nfs_open_dir_context(struct rpc_cred *cred)
+{
+	struct nfs_open_dir_context *ctx;
+	ctx = kmalloc(sizeof(*ctx), GFP_KERNEL);
+	if (ctx != NULL) {
+		ctx->duped = 0;
+		ctx->dir_cookie = 0;
+		ctx->dup_cookie = 0;
+		ctx->cred = get_rpccred(cred);
+	} else
+		ctx = ERR_PTR(-ENOMEM);
+	return ctx;
+}
+
+static void put_nfs_open_dir_context(struct nfs_open_dir_context *ctx)
+{
+	put_rpccred(ctx->cred);
+	kfree(ctx);
+}
+
 /*
  * Open file
  */
 static int
 nfs_opendir(struct inode *inode, struct file *filp)
 {
-	int res;
+	int res = 0;
+	struct nfs_open_dir_context *ctx;
+	struct rpc_cred *cred;
 
 	dfprintk(FILE, "NFS: open dir(%s/%s)\n",
 			filp->f_path.dentry->d_parent->d_name.name,
@@ -147,8 +170,15 @@ nfs_opendir(struct inode *inode, struct file *filp)
 
 	nfs_inc_stats(inode, NFSIOS_VFSOPEN);
 
-	/* Call generic open code in order to cache credentials */
-	res = nfs_open(inode, filp);
+	cred = rpc_lookup_cred();
+	if (IS_ERR(cred))
+		return PTR_ERR(cred);
+	ctx = alloc_nfs_open_dir_context(cred);
+	if (IS_ERR(ctx)) {
+		res = PTR_ERR(ctx);
+		goto out;
+	}
+	filp->private_data = ctx;
 	if (filp->f_path.dentry == filp->f_path.mnt->mnt_root) {
 		/* This is a mountpoint, so d_revalidate will never
 		 * have been called, so we need to refresh the
@@ -156,9 +186,18 @@ nfs_opendir(struct inode *inode, struct file *filp)
 		 */
 		__nfs_revalidate_inode(NFS_SERVER(inode), inode);
 	}
+out:
+	put_rpccred(cred);
 	return res;
 }
 
+static int
+nfs_closedir(struct inode *inode, struct file *filp)
+{
+	put_nfs_open_dir_context(filp->private_data);
+	return 0;
+}
+
 struct nfs_cache_array_entry {
 	u64 cookie;
 	u64 ino;
@@ -284,19 +323,20 @@ int nfs_readdir_search_for_pos(struct nfs_cache_array *array, nfs_readdir_descri
 {
 	loff_t diff = desc->file->f_pos - desc->current_index;
 	unsigned int index;
+	struct nfs_open_dir_context *ctx = desc->file->private_data;
 
 	if (diff < 0)
 		goto out_eof;
 	if (diff >= array->size) {
 		if (array->eof_index >= 0)
 			goto out_eof;
-		desc->current_index += array->size;
 		return -EAGAIN;
 	}
 
 	index = (unsigned int)diff;
 	*desc->dir_cookie = array->array[index].cookie;
 	desc->cache_entry_index = index;
+	ctx->duped = 0;
 	return 0;
 out_eof:
 	desc->eof = 1;
@@ -307,10 +347,18 @@ static
 int nfs_readdir_search_for_cookie(struct nfs_cache_array *array, nfs_readdir_descriptor_t *desc)
 {
 	int i;
+	loff_t new_pos;
 	int status = -EAGAIN;
+	struct nfs_open_dir_context *ctx = desc->file->private_data;
 
 	for (i = 0; i < array->size; i++) {
 		if (array->array[i].cookie == *desc->dir_cookie) {
+			new_pos = desc->current_index + i;
+			if (new_pos < desc->file->f_pos) {
+				ctx->dup_cookie = *desc->dir_cookie;
+				ctx->duped = 1;
+			}
+			desc->file->f_pos = new_pos;
 			desc->cache_entry_index = i;
 			return 0;
 		}
@@ -342,6 +390,7 @@ int nfs_readdir_search_array(nfs_readdir_descriptor_t *desc)
 
 	if (status == -EAGAIN) {
 		desc->last_cookie = array->last_cookie;
+		desc->current_index += array->size;
 		desc->page_index++;
 	}
 	nfs_readdir_release_array(desc->page);
@@ -354,7 +403,8 @@ static
 int nfs_readdir_xdr_filler(struct page **pages, nfs_readdir_descriptor_t *desc,
 			struct nfs_entry *entry, struct file *file, struct inode *inode)
 {
-	struct rpc_cred	*cred = nfs_file_cred(file);
+	struct nfs_open_dir_context *ctx = file->private_data;
+	struct rpc_cred	*cred = ctx->cred;
 	unsigned long	timestamp, gencount;
 	int		error;
 
@@ -693,6 +743,20 @@ int nfs_do_filldir(nfs_readdir_descriptor_t *desc, void *dirent,
 	int i = 0;
 	int res = 0;
 	struct nfs_cache_array *array = NULL;
+	struct nfs_open_dir_context *ctx = file->private_data;
+
+	if (ctx->duped != 0 && ctx->dup_cookie == *desc->dir_cookie) {
+		if (printk_ratelimit()) {
+			pr_notice("NFS: directory %s/%s contains a readdir loop.  "
+				"Please contact your server vendor.  "
+				"Offending cookie: %llu\n",
+				file->f_dentry->d_parent->d_name.name,
+				file->f_dentry->d_name.name,
+				*desc->dir_cookie);
+		}
+		res = -ELOOP;
+		goto out;
+	}
 
 	array = nfs_readdir_get_array(desc->page);
 	if (IS_ERR(array)) {
@@ -785,6 +849,7 @@ static int nfs_readdir(struct file *filp, void *dirent, filldir_t filldir)
 	struct inode	*inode = dentry->d_inode;
 	nfs_readdir_descriptor_t my_desc,
 			*desc = &my_desc;
+	struct nfs_open_dir_context *dir_ctx = filp->private_data;
 	int res;
 
 	dfprintk(FILE, "NFS: readdir(%s/%s) starting at cookie %llu\n",
@@ -801,7 +866,7 @@ static int nfs_readdir(struct file *filp, void *dirent, filldir_t filldir)
 	memset(desc, 0, sizeof(*desc));
 
 	desc->file = filp;
-	desc->dir_cookie = &nfs_file_open_context(filp)->dir_cookie;
+	desc->dir_cookie = &dir_ctx->dir_cookie;
 	desc->decode = NFS_PROTO(inode)->decode_dirent;
 	desc->plus = NFS_USE_READDIRPLUS(inode);
 
@@ -853,6 +918,7 @@ static loff_t nfs_llseek_dir(struct file *filp, loff_t offset, int origin)
 {
 	struct dentry *dentry = filp->f_path.dentry;
 	struct inode *inode = dentry->d_inode;
+	struct nfs_open_dir_context *dir_ctx = filp->private_data;
 
 	dfprintk(FILE, "NFS: llseek dir(%s/%s, %lld, %d)\n",
 			dentry->d_parent->d_name.name,
@@ -872,7 +938,8 @@ static loff_t nfs_llseek_dir(struct file *filp, loff_t offset, int origin)
 	}
 	if (offset != filp->f_pos) {
 		filp->f_pos = offset;
-		nfs_file_open_context(filp)->dir_cookie = 0;
+		dir_ctx->dir_cookie = 0;
+		dir_ctx->duped = 0;
 	}
 out:
 	mutex_unlock(&inode->i_mutex);
@@ -1068,7 +1135,7 @@ static int nfs_lookup_revalidate(struct dentry *dentry, struct nameidata *nd)
 	if (fhandle == NULL || fattr == NULL)
 		goto out_error;
 
-	error = NFS_PROTO(dir)->lookup(dir, &dentry->d_name, fhandle, fattr);
+	error = NFS_PROTO(dir)->lookup(NFS_SERVER(dir)->client, dir, &dentry->d_name, fhandle, fattr);
 	if (error)
 		goto out_bad;
 	if (nfs_compare_fh(NFS_FH(inode), fhandle))
@@ -1224,7 +1291,7 @@ static struct dentry *nfs_lookup(struct inode *dir, struct dentry * dentry, stru
 	parent = dentry->d_parent;
 	/* Protect against concurrent sillydeletes */
 	nfs_block_sillyrename(parent);
-	error = NFS_PROTO(dir)->lookup(dir, &dentry->d_name, fhandle, fattr);
+	error = NFS_PROTO(dir)->lookup(NFS_SERVER(dir)->client, dir, &dentry->d_name, fhandle, fattr);
 	if (error == -ENOENT)
 		goto no_entry;
 	if (error < 0) {
@@ -1562,7 +1629,7 @@ int nfs_instantiate(struct dentry *dentry, struct nfs_fh *fhandle,
 	if (dentry->d_inode)
 		goto out;
 	if (fhandle->size == 0) {
-		error = NFS_PROTO(dir)->lookup(dir, &dentry->d_name, fhandle, fattr);
+		error = NFS_PROTO(dir)->lookup(NFS_SERVER(dir)->client, dir, &dentry->d_name, fhandle, fattr);
 		if (error)
 			goto out_error;
 	}
diff --git a/fs/nfs/file.c b/fs/nfs/file.c
index d85a534b15cd..2f093ed16980 100644
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -301,7 +301,7 @@ nfs_file_mmap(struct file * file, struct vm_area_struct * vma)
  * disk, but it retrieves and clears ctx->error after synching, despite
  * the two being set at the same time in nfs_context_set_write_error().
  * This is because the former is used to notify the _next_ call to
- * nfs_file_write() that a write error occured, and hence cause it to
+ * nfs_file_write() that a write error occurred, and hence cause it to
  * fall back to doing a synchronous write.
  */
 static int
@@ -326,6 +326,9 @@ nfs_file_fsync(struct file *file, int datasync)
 		ret = xchg(&ctx->error, 0);
 	if (!ret && status < 0)
 		ret = status;
+	if (!ret && !datasync)
+		/* application has asked for meta-data sync */
+		ret = pnfs_layoutcommit_inode(inode, true);
 	return ret;
 }
 
diff --git a/fs/nfs/getroot.c b/fs/nfs/getroot.c
index 1084792bc0fe..dcb61548887f 100644
--- a/fs/nfs/getroot.c
+++ b/fs/nfs/getroot.c
@@ -222,6 +222,10 @@ struct dentry *nfs4_get_root(struct super_block *sb, struct nfs_fh *mntfh,
 		goto out;
 	}
 
+	if (fattr->valid & NFS_ATTR_FATTR_FSID &&
+	    !nfs_fsid_equal(&server->fsid, &fattr->fsid))
+		memcpy(&server->fsid, &fattr->fsid, sizeof(server->fsid));
+
 	inode = nfs_fhget(sb, mntfh, fattr);
 	if (IS_ERR(inode)) {
 		dprintk("nfs_get_root: get root inode failed\n");
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 01768e5e2c9b..57bb31ad7a5e 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -254,7 +254,9 @@ nfs_fhget(struct super_block *sb, struct nfs_fh *fh, struct nfs_fattr *fattr)
 	struct inode *inode = ERR_PTR(-ENOENT);
 	unsigned long hash;
 
-	if ((fattr->valid & NFS_ATTR_FATTR_FILEID) == 0)
+	nfs_attr_check_mountpoint(sb, fattr);
+
+	if ((fattr->valid & NFS_ATTR_FATTR_FILEID) == 0 && (fattr->valid & NFS_ATTR_FATTR_MOUNTPOINT) == 0)
 		goto out_no_inode;
 	if ((fattr->valid & NFS_ATTR_FATTR_TYPE) == 0)
 		goto out_no_inode;
@@ -298,8 +300,8 @@ nfs_fhget(struct super_block *sb, struct nfs_fh *fh, struct nfs_fattr *fattr)
 			if (nfs_server_capable(inode, NFS_CAP_READDIRPLUS))
 				set_bit(NFS_INO_ADVISE_RDPLUS, &NFS_I(inode)->flags);
 			/* Deal with crossing mountpoints */
-			if ((fattr->valid & NFS_ATTR_FATTR_FSID)
-					&& !nfs_fsid_equal(&NFS_SB(sb)->fsid, &fattr->fsid)) {
+			if (fattr->valid & NFS_ATTR_FATTR_MOUNTPOINT ||
+					fattr->valid & NFS_ATTR_FATTR_V4_REFERRAL) {
 				if (fattr->valid & NFS_ATTR_FATTR_V4_REFERRAL)
 					inode->i_op = &nfs_referral_inode_operations;
 				else
@@ -639,7 +641,6 @@ struct nfs_open_context *alloc_nfs_open_context(struct path *path, struct rpc_cr
 		ctx->mode = f_mode;
 		ctx->flags = 0;
 		ctx->error = 0;
-		ctx->dir_cookie = 0;
 		nfs_init_lock_context(&ctx->lock_context);
 		ctx->lock_context.open_context = ctx;
 		INIT_LIST_HEAD(&ctx->list);
@@ -1471,6 +1472,7 @@ static inline void nfs4_init_once(struct nfs_inode *nfsi)
 	nfsi->delegation_state = 0;
 	init_rwsem(&nfsi->rwsem);
 	nfsi->layout = NULL;
+	atomic_set(&nfsi->commits_outstanding, 0);
 #endif
 }
 
diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h
index 72e0bddf7a2f..ce118ce885dd 100644
--- a/fs/nfs/internal.h
+++ b/fs/nfs/internal.h
@@ -39,6 +39,12 @@ static inline int nfs4_has_persistent_session(const struct nfs_client *clp)
 	return 0;
 }
 
+static inline void nfs_attr_check_mountpoint(struct super_block *parent, struct nfs_fattr *fattr)
+{
+	if (!nfs_fsid_equal(&NFS_SB(parent)->fsid, &fattr->fsid))
+		fattr->valid |= NFS_ATTR_FATTR_MOUNTPOINT;
+}
+
 struct nfs_clone_mount {
 	const struct super_block *sb;
 	const struct dentry *dentry;
@@ -214,6 +220,7 @@ extern const u32 nfs41_maxwrite_overhead;
 /* nfs4proc.c */
 #ifdef CONFIG_NFS_V4
 extern struct rpc_procinfo nfs4_procedures[];
+void nfs_fixup_secinfo_attributes(struct nfs_fattr *, struct nfs_fh *);
 #endif
 
 extern int nfs4_init_ds_session(struct nfs_client *clp);
@@ -276,11 +283,25 @@ extern int nfs_initiate_read(struct nfs_read_data *data, struct rpc_clnt *clnt,
 extern void nfs_read_prepare(struct rpc_task *task, void *calldata);
 
 /* write.c */
+extern void nfs_commit_free(struct nfs_write_data *p);
 extern int nfs_initiate_write(struct nfs_write_data *data,
 			      struct rpc_clnt *clnt,
 			      const struct rpc_call_ops *call_ops,
 			      int how);
 extern void nfs_write_prepare(struct rpc_task *task, void *calldata);
+extern int nfs_initiate_commit(struct nfs_write_data *data,
+			       struct rpc_clnt *clnt,
+			       const struct rpc_call_ops *call_ops,
+			       int how);
+extern void nfs_init_commit(struct nfs_write_data *data,
+			    struct list_head *head,
+			    struct pnfs_layout_segment *lseg);
+void nfs_retry_commit(struct list_head *page_list,
+		      struct pnfs_layout_segment *lseg);
+void nfs_commit_clear_lock(struct nfs_inode *nfsi);
+void nfs_commitdata_release(void *data);
+void nfs_commit_release_pages(struct nfs_write_data *data);
+
 #ifdef CONFIG_MIGRATION
 extern int nfs_migrate_page(struct address_space *,
 		struct page *, struct page *);
@@ -296,12 +317,14 @@ extern int nfs4_init_client(struct nfs_client *clp,
 			    rpc_authflavor_t authflavour,
 			    int noresvport);
 extern void nfs4_reset_write(struct rpc_task *task, struct nfs_write_data *data);
-extern int _nfs4_call_sync(struct nfs_server *server,
+extern int _nfs4_call_sync(struct rpc_clnt *clnt,
+			   struct nfs_server *server,
 			   struct rpc_message *msg,
 			   struct nfs4_sequence_args *args,
 			   struct nfs4_sequence_res *res,
 			   int cache_reply);
-extern int _nfs4_call_sync_session(struct nfs_server *server,
+extern int _nfs4_call_sync_session(struct rpc_clnt *clnt,
+				   struct nfs_server *server,
 				   struct rpc_message *msg,
 				   struct nfs4_sequence_args *args,
 				   struct nfs4_sequence_res *res,
diff --git a/fs/nfs/namespace.c b/fs/nfs/namespace.c
index bf1c68009ffd..9166fcb66da2 100644
--- a/fs/nfs/namespace.c
+++ b/fs/nfs/namespace.c
@@ -15,6 +15,7 @@
 #include <linux/string.h>
 #include <linux/sunrpc/clnt.h>
 #include <linux/vfs.h>
+#include <linux/sunrpc/gss_api.h>
 #include "internal.h"
 
 #define NFSDBG_FACILITY		NFSDBG_VFS
@@ -27,7 +28,8 @@ int nfs_mountpoint_expiry_timeout = 500 * HZ;
 
 static struct vfsmount *nfs_do_submount(struct dentry *dentry,
 					struct nfs_fh *fh,
-					struct nfs_fattr *fattr);
+					struct nfs_fattr *fattr,
+					rpc_authflavor_t authflavor);
 
 /*
  * nfs_path - reconstruct the path given an arbitrary dentry
@@ -116,6 +118,102 @@ Elong:
 	return ERR_PTR(-ENAMETOOLONG);
 }
 
+#ifdef CONFIG_NFS_V4
+static rpc_authflavor_t nfs_find_best_sec(struct nfs4_secinfo_flavors *flavors, struct inode *inode)
+{
+	struct gss_api_mech *mech;
+	struct xdr_netobj oid;
+	int i;
+	rpc_authflavor_t pseudoflavor = RPC_AUTH_UNIX;
+
+	for (i = 0; i < flavors->num_flavors; i++) {
+		struct nfs4_secinfo_flavor *flavor;
+		flavor = &flavors->flavors[i];
+
+		if (flavor->flavor == RPC_AUTH_NULL || flavor->flavor == RPC_AUTH_UNIX) {
+			pseudoflavor = flavor->flavor;
+			break;
+		} else if (flavor->flavor == RPC_AUTH_GSS) {
+			oid.len  = flavor->gss.sec_oid4.len;
+			oid.data = flavor->gss.sec_oid4.data;
+			mech = gss_mech_get_by_OID(&oid);
+			if (!mech)
+				continue;
+			pseudoflavor = gss_svc_to_pseudoflavor(mech, flavor->gss.service);
+			gss_mech_put(mech);
+			break;
+		}
+	}
+
+	return pseudoflavor;
+}
+
+static rpc_authflavor_t nfs_negotiate_security(const struct dentry *parent, const struct dentry *dentry)
+{
+	int status = 0;
+	struct page *page;
+	struct nfs4_secinfo_flavors *flavors;
+	int (*secinfo)(struct inode *, const struct qstr *, struct nfs4_secinfo_flavors *);
+	rpc_authflavor_t flavor = RPC_AUTH_UNIX;
+
+	secinfo = NFS_PROTO(parent->d_inode)->secinfo;
+	if (secinfo != NULL) {
+		page = alloc_page(GFP_KERNEL);
+		if (!page) {
+			status = -ENOMEM;
+			goto out;
+		}
+		flavors = page_address(page);
+		status = secinfo(parent->d_inode, &dentry->d_name, flavors);
+		flavor = nfs_find_best_sec(flavors, dentry->d_inode);
+		put_page(page);
+	}
+
+	return flavor;
+
+out:
+	status = -ENOMEM;
+	return status;
+}
+
+static rpc_authflavor_t nfs_lookup_with_sec(struct nfs_server *server, struct dentry *parent,
+				     struct dentry *dentry, struct path *path,
+				     struct nfs_fh *fh, struct nfs_fattr *fattr)
+{
+	rpc_authflavor_t flavor;
+	struct rpc_clnt *clone;
+	struct rpc_auth *auth;
+	int err;
+
+	flavor = nfs_negotiate_security(parent, path->dentry);
+	if (flavor < 0)
+		goto out;
+	clone  = rpc_clone_client(server->client);
+	auth   = rpcauth_create(flavor, clone);
+	if (!auth) {
+		flavor = -EIO;
+		goto out_shutdown;
+	}
+	err = server->nfs_client->rpc_ops->lookup(clone, parent->d_inode,
+						  &path->dentry->d_name,
+						  fh, fattr);
+	if (err < 0)
+		flavor = err;
+out_shutdown:
+	rpc_shutdown_client(clone);
+out:
+	return flavor;
+}
+#else /* CONFIG_NFS_V4 */
+static inline rpc_authflavor_t nfs_lookup_with_sec(struct nfs_server *server,
+				     struct dentry *parent, struct dentry *dentry,
+				     struct path *path, struct nfs_fh *fh,
+				     struct nfs_fattr *fattr)
+{
+	return -EPERM;
+}
+#endif /* CONFIG_NFS_V4 */
+
 /*
  * nfs_d_automount - Handle crossing a mountpoint on the server
  * @path - The mountpoint
@@ -136,6 +234,7 @@ struct vfsmount *nfs_d_automount(struct path *path)
 	struct nfs_fh *fh = NULL;
 	struct nfs_fattr *fattr = NULL;
 	int err;
+	rpc_authflavor_t flavor = 1;
 
 	dprintk("--> nfs_d_automount()\n");
 
@@ -153,9 +252,16 @@ struct vfsmount *nfs_d_automount(struct path *path)
 
 	/* Look it up again to get its attributes */
 	parent = dget_parent(path->dentry);
-	err = server->nfs_client->rpc_ops->lookup(parent->d_inode,
+	err = server->nfs_client->rpc_ops->lookup(server->client, parent->d_inode,
 						  &path->dentry->d_name,
 						  fh, fattr);
+	if (err == -EPERM) {
+		flavor = nfs_lookup_with_sec(server, parent, path->dentry, path, fh, fattr);
+		if (flavor < 0)
+			err = flavor;
+		else
+			err = 0;
+	}
 	dput(parent);
 	if (err != 0) {
 		mnt = ERR_PTR(err);
@@ -165,7 +271,7 @@ struct vfsmount *nfs_d_automount(struct path *path)
 	if (fattr->valid & NFS_ATTR_FATTR_V4_REFERRAL)
 		mnt = nfs_do_refmount(path->dentry);
 	else
-		mnt = nfs_do_submount(path->dentry, fh, fattr);
+		mnt = nfs_do_submount(path->dentry, fh, fattr, flavor);
 	if (IS_ERR(mnt))
 		goto out;
 
@@ -232,17 +338,20 @@ static struct vfsmount *nfs_do_clone_mount(struct nfs_server *server,
  * @dentry - parent directory
  * @fh - filehandle for new root dentry
  * @fattr - attributes for new root inode
+ * @authflavor - security flavor to use when performing the mount
  *
  */
 static struct vfsmount *nfs_do_submount(struct dentry *dentry,
 					struct nfs_fh *fh,
-					struct nfs_fattr *fattr)
+					struct nfs_fattr *fattr,
+					rpc_authflavor_t authflavor)
 {
 	struct nfs_clone_mount mountdata = {
 		.sb = dentry->d_sb,
 		.dentry = dentry,
 		.fh = fh,
 		.fattr = fattr,
+		.authflavor = authflavor,
 	};
 	struct vfsmount *mnt = ERR_PTR(-ENOMEM);
 	char *page = (char *) __get_free_page(GFP_USER);
diff --git a/fs/nfs/nfs3proc.c b/fs/nfs/nfs3proc.c
index d0c80d8b3f96..38053d823eb0 100644
--- a/fs/nfs/nfs3proc.c
+++ b/fs/nfs/nfs3proc.c
@@ -141,7 +141,7 @@ nfs3_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr,
 }
 
 static int
-nfs3_proc_lookup(struct inode *dir, struct qstr *name,
+nfs3_proc_lookup(struct rpc_clnt *clnt, struct inode *dir, struct qstr *name,
 		 struct nfs_fh *fhandle, struct nfs_fattr *fattr)
 {
 	struct nfs3_diropargs	arg = {
diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h
index c64be1cff080..e1c261ddd65d 100644
--- a/fs/nfs/nfs4_fs.h
+++ b/fs/nfs/nfs4_fs.h
@@ -57,7 +57,8 @@ enum nfs4_session_state {
 struct nfs4_minor_version_ops {
 	u32	minor_version;
 
-	int	(*call_sync)(struct nfs_server *server,
+	int	(*call_sync)(struct rpc_clnt *clnt,
+			struct nfs_server *server,
 			struct rpc_message *msg,
 			struct nfs4_sequence_args *args,
 			struct nfs4_sequence_res *res,
@@ -262,6 +263,8 @@ extern int nfs4_proc_destroy_session(struct nfs4_session *);
 extern int nfs4_init_session(struct nfs_server *server);
 extern int nfs4_proc_get_lease_time(struct nfs_client *clp,
 		struct nfs_fsinfo *fsinfo);
+extern int nfs4_proc_layoutcommit(struct nfs4_layoutcommit_data *data,
+				  bool sync);
 
 static inline bool
 is_ds_only_client(struct nfs_client *clp)
diff --git a/fs/nfs/nfs4filelayout.c b/fs/nfs/nfs4filelayout.c
index 428558464817..6f8192f4cfc7 100644
--- a/fs/nfs/nfs4filelayout.c
+++ b/fs/nfs/nfs4filelayout.c
@@ -154,6 +154,23 @@ static int filelayout_read_done_cb(struct rpc_task *task,
 }
 
 /*
+ * We reference the rpc_cred of the first WRITE that triggers the need for
+ * a LAYOUTCOMMIT, and use it to send the layoutcommit compound.
+ * rfc5661 is not clear about which credential should be used.
+ */
+static void
+filelayout_set_layoutcommit(struct nfs_write_data *wdata)
+{
+	if (FILELAYOUT_LSEG(wdata->lseg)->commit_through_mds ||
+	    wdata->res.verf->committed == NFS_FILE_SYNC)
+		return;
+
+	pnfs_set_layoutcommit(wdata);
+	dprintk("%s ionde %lu pls_end_pos %lu\n", __func__, wdata->inode->i_ino,
+		(unsigned long) wdata->lseg->pls_end_pos);
+}
+
+/*
  * Call ops for the async read/write cases
  * In the case of dense layouts, the offset needs to be reset to its
  * original value.
@@ -210,6 +227,38 @@ static int filelayout_write_done_cb(struct rpc_task *task,
 		return -EAGAIN;
 	}
 
+	filelayout_set_layoutcommit(data);
+	return 0;
+}
+
+/* Fake up some data that will cause nfs_commit_release to retry the writes. */
+static void prepare_to_resend_writes(struct nfs_write_data *data)
+{
+	struct nfs_page *first = nfs_list_entry(data->pages.next);
+
+	data->task.tk_status = 0;
+	memcpy(data->verf.verifier, first->wb_verf.verifier,
+	       sizeof(first->wb_verf.verifier));
+	data->verf.verifier[0]++; /* ensure verifier mismatch */
+}
+
+static int filelayout_commit_done_cb(struct rpc_task *task,
+				     struct nfs_write_data *data)
+{
+	int reset = 0;
+
+	if (filelayout_async_handle_error(task, data->args.context->state,
+					  data->ds_clp, &reset) == -EAGAIN) {
+		dprintk("%s calling restart ds_clp %p ds_clp->cl_session %p\n",
+			__func__, data->ds_clp, data->ds_clp->cl_session);
+		if (reset) {
+			prepare_to_resend_writes(data);
+			filelayout_set_lo_fail(data->lseg);
+		} else
+			nfs_restart_rpc(task, data->ds_clp);
+		return -EAGAIN;
+	}
+
 	return 0;
 }
 
@@ -240,6 +289,16 @@ static void filelayout_write_release(void *data)
 	wdata->mds_ops->rpc_release(data);
 }
 
+static void filelayout_commit_release(void *data)
+{
+	struct nfs_write_data *wdata = (struct nfs_write_data *)data;
+
+	nfs_commit_release_pages(wdata);
+	if (atomic_dec_and_test(&NFS_I(wdata->inode)->commits_outstanding))
+		nfs_commit_clear_lock(NFS_I(wdata->inode));
+	nfs_commitdata_release(wdata);
+}
+
 struct rpc_call_ops filelayout_read_call_ops = {
 	.rpc_call_prepare = filelayout_read_prepare,
 	.rpc_call_done = filelayout_read_call_done,
@@ -252,6 +311,12 @@ struct rpc_call_ops filelayout_write_call_ops = {
 	.rpc_release = filelayout_write_release,
 };
 
+struct rpc_call_ops filelayout_commit_call_ops = {
+	.rpc_call_prepare = filelayout_write_prepare,
+	.rpc_call_done = filelayout_write_call_done,
+	.rpc_release = filelayout_commit_release,
+};
+
 static enum pnfs_try_status
 filelayout_read_pagelist(struct nfs_read_data *data)
 {
@@ -320,10 +385,6 @@ filelayout_write_pagelist(struct nfs_write_data *data, int sync)
 		data->inode->i_ino, sync, (size_t) data->args.count, offset,
 		ntohl(ds->ds_ip_addr), ntohs(ds->ds_port));
 
-	/* We can't handle commit to ds yet */
-	if (!FILELAYOUT_LSEG(lseg)->commit_through_mds)
-		data->args.stable = NFS_FILE_SYNC;
-
 	data->write_done_cb = filelayout_write_done_cb;
 	data->ds_clp = ds->ds_clp;
 	fh = nfs4_fl_select_ds_fh(lseg, j);
@@ -441,12 +502,33 @@ filelayout_decode_layout(struct pnfs_layout_hdr *flo,
 			 struct nfs4_layoutget_res *lgr,
 			 struct nfs4_deviceid *id)
 {
-	uint32_t *p = (uint32_t *)lgr->layout.buf;
+	struct xdr_stream stream;
+	struct xdr_buf buf = {
+		.pages =  lgr->layoutp->pages,
+		.page_len =  lgr->layoutp->len,
+		.buflen =  lgr->layoutp->len,
+		.len = lgr->layoutp->len,
+	};
+	struct page *scratch;
+	__be32 *p;
 	uint32_t nfl_util;
 	int i;
 
 	dprintk("%s: set_layout_map Begin\n", __func__);
 
+	scratch = alloc_page(GFP_KERNEL);
+	if (!scratch)
+		return -ENOMEM;
+
+	xdr_init_decode(&stream, &buf, NULL);
+	xdr_set_scratch_buffer(&stream, page_address(scratch), PAGE_SIZE);
+
+	/* 20 = ufl_util (4), first_stripe_index (4), pattern_offset (8),
+	 * num_fh (4) */
+	p = xdr_inline_decode(&stream, NFS4_DEVICEID4_SIZE + 20);
+	if (unlikely(!p))
+		goto out_err;
+
 	memcpy(id, p, sizeof(*id));
 	p += XDR_QUADLEN(NFS4_DEVICEID4_SIZE);
 	print_deviceid(id);
@@ -468,32 +550,57 @@ filelayout_decode_layout(struct pnfs_layout_hdr *flo,
 		__func__, nfl_util, fl->num_fh, fl->first_stripe_index,
 		fl->pattern_offset);
 
+	if (!fl->num_fh)
+		goto out_err;
+
 	fl->fh_array = kzalloc(fl->num_fh * sizeof(struct nfs_fh *),
 			       GFP_KERNEL);
 	if (!fl->fh_array)
-		return -ENOMEM;
+		goto out_err;
 
 	for (i = 0; i < fl->num_fh; i++) {
 		/* Do we want to use a mempool here? */
 		fl->fh_array[i] = kmalloc(sizeof(struct nfs_fh), GFP_KERNEL);
-		if (!fl->fh_array[i]) {
-			filelayout_free_fh_array(fl);
-			return -ENOMEM;
-		}
+		if (!fl->fh_array[i])
+			goto out_err_free;
+
+		p = xdr_inline_decode(&stream, 4);
+		if (unlikely(!p))
+			goto out_err_free;
 		fl->fh_array[i]->size = be32_to_cpup(p++);
 		if (sizeof(struct nfs_fh) < fl->fh_array[i]->size) {
 			printk(KERN_ERR "Too big fh %d received %d\n",
 			       i, fl->fh_array[i]->size);
-			filelayout_free_fh_array(fl);
-			return -EIO;
+			goto out_err_free;
 		}
+
+		p = xdr_inline_decode(&stream, fl->fh_array[i]->size);
+		if (unlikely(!p))
+			goto out_err_free;
 		memcpy(fl->fh_array[i]->data, p, fl->fh_array[i]->size);
-		p += XDR_QUADLEN(fl->fh_array[i]->size);
 		dprintk("DEBUG: %s: fh len %d\n", __func__,
 			fl->fh_array[i]->size);
 	}
 
+	__free_page(scratch);
 	return 0;
+
+out_err_free:
+	filelayout_free_fh_array(fl);
+out_err:
+	__free_page(scratch);
+	return -EIO;
+}
+
+static void
+filelayout_free_lseg(struct pnfs_layout_segment *lseg)
+{
+	struct nfs4_filelayout_segment *fl = FILELAYOUT_LSEG(lseg);
+
+	dprintk("--> %s\n", __func__);
+	nfs4_fl_put_deviceid(fl->dsaddr);
+	kfree(fl->commit_buckets);
+	_filelayout_free_lseg(fl);
 }
 
 static struct pnfs_layout_segment *
@@ -514,17 +621,28 @@ filelayout_alloc_lseg(struct pnfs_layout_hdr *layoutid,
 		_filelayout_free_lseg(fl);
 		return NULL;
 	}
-	return &fl->generic_hdr;
-}
 
-static void
-filelayout_free_lseg(struct pnfs_layout_segment *lseg)
-{
-	struct nfs4_filelayout_segment *fl = FILELAYOUT_LSEG(lseg);
-
-	dprintk("--> %s\n", __func__);
-	nfs4_fl_put_deviceid(fl->dsaddr);
-	_filelayout_free_lseg(fl);
+	/* This assumes there is only one IOMODE_RW lseg.  What
+	 * we really want to do is have a layout_hdr level
+	 * dictionary of <multipath_list4, fh> keys, each
+	 * associated with a struct list_head, populated by calls
+	 * to filelayout_write_pagelist().
+	 * */
+	if ((!fl->commit_through_mds) && (lgr->range.iomode == IOMODE_RW)) {
+		int i;
+		int size = (fl->stripe_type == STRIPE_SPARSE) ?
+			fl->dsaddr->ds_num : fl->dsaddr->stripe_count;
+
+		fl->commit_buckets = kcalloc(size, sizeof(struct list_head), GFP_KERNEL);
+		if (!fl->commit_buckets) {
+			filelayout_free_lseg(&fl->generic_hdr);
+			return NULL;
+		}
+		fl->number_of_buckets = size;
+		for (i = 0; i < size; i++)
+			INIT_LIST_HEAD(&fl->commit_buckets[i]);
+	}
+	return &fl->generic_hdr;
 }
 
 /*
@@ -552,6 +670,191 @@ filelayout_pg_test(struct nfs_pageio_descriptor *pgio, struct nfs_page *prev,
 	return (p_stripe == r_stripe);
 }
 
+static bool filelayout_mark_pnfs_commit(struct pnfs_layout_segment *lseg)
+{
+	return !FILELAYOUT_LSEG(lseg)->commit_through_mds;
+}
+
+static u32 select_bucket_index(struct nfs4_filelayout_segment *fl, u32 j)
+{
+	if (fl->stripe_type == STRIPE_SPARSE)
+		return nfs4_fl_calc_ds_index(&fl->generic_hdr, j);
+	else
+		return j;
+}
+
+struct list_head *filelayout_choose_commit_list(struct nfs_page *req)
+{
+	struct pnfs_layout_segment *lseg = req->wb_commit_lseg;
+	struct nfs4_filelayout_segment *fl = FILELAYOUT_LSEG(lseg);
+	u32 i, j;
+	struct list_head *list;
+
+	/* Note that we are calling nfs4_fl_calc_j_index on each page
+	 * that ends up being committed to a data server.  An attractive
+	 * alternative is to add a field to nfs_write_data and nfs_page
+	 * to store the value calculated in filelayout_write_pagelist
+	 * and just use that here.
+	 */
+	j = nfs4_fl_calc_j_index(lseg,
+				 (loff_t)req->wb_index << PAGE_CACHE_SHIFT);
+	i = select_bucket_index(fl, j);
+	list = &fl->commit_buckets[i];
+	if (list_empty(list)) {
+		/* Non-empty buckets hold a reference on the lseg */
+		get_lseg(lseg);
+	}
+	return list;
+}
+
+static u32 calc_ds_index_from_commit(struct pnfs_layout_segment *lseg, u32 i)
+{
+	struct nfs4_filelayout_segment *flseg = FILELAYOUT_LSEG(lseg);
+
+	if (flseg->stripe_type == STRIPE_SPARSE)
+		return i;
+	else
+		return nfs4_fl_calc_ds_index(lseg, i);
+}
+
+static struct nfs_fh *
+select_ds_fh_from_commit(struct pnfs_layout_segment *lseg, u32 i)
+{
+	struct nfs4_filelayout_segment *flseg = FILELAYOUT_LSEG(lseg);
+
+	if (flseg->stripe_type == STRIPE_SPARSE) {
+		if (flseg->num_fh == 1)
+			i = 0;
+		else if (flseg->num_fh == 0)
+			/* Use the MDS OPEN fh set in nfs_read_rpcsetup */
+			return NULL;
+	}
+	return flseg->fh_array[i];
+}
+
+static int filelayout_initiate_commit(struct nfs_write_data *data, int how)
+{
+	struct pnfs_layout_segment *lseg = data->lseg;
+	struct nfs4_pnfs_ds *ds;
+	u32 idx;
+	struct nfs_fh *fh;
+
+	idx = calc_ds_index_from_commit(lseg, data->ds_commit_index);
+	ds = nfs4_fl_prepare_ds(lseg, idx);
+	if (!ds) {
+		printk(KERN_ERR "%s: prepare_ds failed, use MDS\n", __func__);
+		set_bit(lo_fail_bit(IOMODE_RW), &lseg->pls_layout->plh_flags);
+		set_bit(lo_fail_bit(IOMODE_READ), &lseg->pls_layout->plh_flags);
+		prepare_to_resend_writes(data);
+		data->mds_ops->rpc_release(data);
+		return -EAGAIN;
+	}
+	dprintk("%s ino %lu, how %d\n", __func__, data->inode->i_ino, how);
+	data->write_done_cb = filelayout_commit_done_cb;
+	data->ds_clp = ds->ds_clp;
+	fh = select_ds_fh_from_commit(lseg, data->ds_commit_index);
+	if (fh)
+		data->args.fh = fh;
+	return nfs_initiate_commit(data, ds->ds_clp->cl_rpcclient,
+				   &filelayout_commit_call_ops, how);
+}
+
+/*
+ * This is only useful while we are using whole file layouts.
+ */
+static struct pnfs_layout_segment *find_only_write_lseg(struct inode *inode)
+{
+	struct pnfs_layout_segment *lseg, *rv = NULL;
+
+	spin_lock(&inode->i_lock);
+	list_for_each_entry(lseg, &NFS_I(inode)->layout->plh_segs, pls_list)
+		if (lseg->pls_range.iomode == IOMODE_RW)
+			rv = get_lseg(lseg);
+	spin_unlock(&inode->i_lock);
+	return rv;
+}
+
+static int alloc_ds_commits(struct inode *inode, struct list_head *list)
+{
+	struct pnfs_layout_segment *lseg;
+	struct nfs4_filelayout_segment *fl;
+	struct nfs_write_data *data;
+	int i, j;
+
+	/* Won't need this when non-whole file layout segments are supported
+	 * instead we will use a pnfs_layout_hdr structure */
+	lseg = find_only_write_lseg(inode);
+	if (!lseg)
+		return 0;
+	fl = FILELAYOUT_LSEG(lseg);
+	for (i = 0; i < fl->number_of_buckets; i++) {
+		if (list_empty(&fl->commit_buckets[i]))
+			continue;
+		data = nfs_commitdata_alloc();
+		if (!data)
+			goto out_bad;
+		data->ds_commit_index = i;
+		data->lseg = lseg;
+		list_add(&data->pages, list);
+	}
+	put_lseg(lseg);
+	return 0;
+
+out_bad:
+	for (j = i; j < fl->number_of_buckets; j++) {
+		if (list_empty(&fl->commit_buckets[i]))
+			continue;
+		nfs_retry_commit(&fl->commit_buckets[i], lseg);
+		put_lseg(lseg);  /* associated with emptying bucket */
+	}
+	put_lseg(lseg);
+	/* Caller will clean up entries put on list */
+	return -ENOMEM;
+}
+
+/* This follows nfs_commit_list pretty closely */
+static int
+filelayout_commit_pagelist(struct inode *inode, struct list_head *mds_pages,
+			   int how)
+{
+	struct nfs_write_data	*data, *tmp;
+	LIST_HEAD(list);
+
+	if (!list_empty(mds_pages)) {
+		data = nfs_commitdata_alloc();
+		if (!data)
+			goto out_bad;
+		data->lseg = NULL;
+		list_add(&data->pages, &list);
+	}
+
+	if (alloc_ds_commits(inode, &list))
+		goto out_bad;
+
+	list_for_each_entry_safe(data, tmp, &list, pages) {
+		list_del_init(&data->pages);
+		atomic_inc(&NFS_I(inode)->commits_outstanding);
+		if (!data->lseg) {
+			nfs_init_commit(data, mds_pages, NULL);
+			nfs_initiate_commit(data, NFS_CLIENT(inode),
+					    data->mds_ops, how);
+		} else {
+			nfs_init_commit(data, &FILELAYOUT_LSEG(data->lseg)->commit_buckets[data->ds_commit_index], data->lseg);
+			filelayout_initiate_commit(data, how);
+		}
+	}
+	return 0;
+ out_bad:
+	list_for_each_entry_safe(data, tmp, &list, pages) {
+		nfs_retry_commit(&data->pages, data->lseg);
+		list_del_init(&data->pages);
+		nfs_commit_free(data);
+	}
+	nfs_retry_commit(mds_pages, NULL);
+	nfs_commit_clear_lock(NFS_I(inode));
+	return -ENOMEM;
+}
+
 static struct pnfs_layoutdriver_type filelayout_type = {
 	.id			= LAYOUT_NFSV4_1_FILES,
 	.name			= "LAYOUT_NFSV4_1_FILES",
@@ -559,6 +862,9 @@ static struct pnfs_layoutdriver_type filelayout_type = {
 	.alloc_lseg		= filelayout_alloc_lseg,
 	.free_lseg		= filelayout_free_lseg,
 	.pg_test		= filelayout_pg_test,
+	.mark_pnfs_commit	= filelayout_mark_pnfs_commit,
+	.choose_commit_list	= filelayout_choose_commit_list,
+	.commit_pagelist	= filelayout_commit_pagelist,
 	.read_pagelist		= filelayout_read_pagelist,
 	.write_pagelist		= filelayout_write_pagelist,
 };
diff --git a/fs/nfs/nfs4filelayout.h b/fs/nfs/nfs4filelayout.h
index ee0c907742b5..7c44579f5832 100644
--- a/fs/nfs/nfs4filelayout.h
+++ b/fs/nfs/nfs4filelayout.h
@@ -33,7 +33,7 @@
 #include "pnfs.h"
 
 /*
- * Field testing shows we need to support upto 4096 stripe indices.
+ * Field testing shows we need to support up to 4096 stripe indices.
  * We store each index as a u8 (u32 on the wire) to keep the memory footprint
  * reasonable. This in turn means we support a maximum of 256
  * RFC 5661 multipath_list4 structures.
@@ -79,6 +79,8 @@ struct nfs4_filelayout_segment {
 	struct nfs4_file_layout_dsaddr *dsaddr; /* Point to GETDEVINFO data */
 	unsigned int num_fh;
 	struct nfs_fh **fh_array;
+	struct list_head *commit_buckets; /* Sort commits to ds */
+	int number_of_buckets;
 };
 
 static inline struct nfs4_filelayout_segment *
diff --git a/fs/nfs/nfs4filelayoutdev.c b/fs/nfs/nfs4filelayoutdev.c
index 68143c162e3b..de5350f2b249 100644
--- a/fs/nfs/nfs4filelayoutdev.c
+++ b/fs/nfs/nfs4filelayoutdev.c
@@ -261,7 +261,7 @@ out:
  * Currently only support ipv4, and one multi-path address.
  */
 static struct nfs4_pnfs_ds *
-decode_and_add_ds(__be32 **pp, struct inode *inode)
+decode_and_add_ds(struct xdr_stream *streamp, struct inode *inode)
 {
 	struct nfs4_pnfs_ds *ds = NULL;
 	char *buf;
@@ -269,25 +269,34 @@ decode_and_add_ds(__be32 **pp, struct inode *inode)
 	u32 ip_addr, port;
 	int nlen, rlen, i;
 	int tmp[2];
-	__be32 *r_netid, *r_addr, *p = *pp;
+	__be32 *p;
 
 	/* r_netid */
+	p = xdr_inline_decode(streamp, 4);
+	if (unlikely(!p))
+		goto out_err;
 	nlen = be32_to_cpup(p++);
-	r_netid = p;
-	p += XDR_QUADLEN(nlen);
 
-	/* r_addr */
-	rlen = be32_to_cpup(p++);
-	r_addr = p;
-	p += XDR_QUADLEN(rlen);
-	*pp = p;
+	p = xdr_inline_decode(streamp, nlen);
+	if (unlikely(!p))
+		goto out_err;
 
 	/* Check that netid is "tcp" */
-	if (nlen != 3 ||  memcmp((char *)r_netid, "tcp", 3)) {
+	if (nlen != 3 ||  memcmp((char *)p, "tcp", 3)) {
 		dprintk("%s: ERROR: non ipv4 TCP r_netid\n", __func__);
 		goto out_err;
 	}
 
+	/* r_addr */
+	p = xdr_inline_decode(streamp, 4);
+	if (unlikely(!p))
+		goto out_err;
+	rlen = be32_to_cpup(p);
+
+	p = xdr_inline_decode(streamp, rlen);
+	if (unlikely(!p))
+		goto out_err;
+
 	/* ipv6 length plus port is legal */
 	if (rlen > INET6_ADDRSTRLEN + 8) {
 		dprintk("%s: Invalid address, length %d\n", __func__,
@@ -300,7 +309,7 @@ decode_and_add_ds(__be32 **pp, struct inode *inode)
 		goto out_err;
 	}
 	buf[rlen] = '\0';
-	memcpy(buf, r_addr, rlen);
+	memcpy(buf, p, rlen);
 
 	/* replace the port dots with dashes for the in4_pton() delimiter*/
 	for (i = 0; i < 2; i++) {
@@ -336,90 +345,154 @@ out_err:
 static struct nfs4_file_layout_dsaddr*
 decode_device(struct inode *ino, struct pnfs_device *pdev)
 {
-	int i, dummy;
+	int i;
 	u32 cnt, num;
 	u8 *indexp;
-	__be32 *p = (__be32 *)pdev->area, *indicesp;
-	struct nfs4_file_layout_dsaddr *dsaddr;
+	__be32 *p;
+	u8 *stripe_indices;
+	u8 max_stripe_index;
+	struct nfs4_file_layout_dsaddr *dsaddr = NULL;
+	struct xdr_stream stream;
+	struct xdr_buf buf = {
+		.pages = pdev->pages,
+		.page_len = pdev->pglen,
+		.buflen = pdev->pglen,
+		.len = pdev->pglen,
+	};
+	struct page *scratch;
+
+	/* set up xdr stream */
+	scratch = alloc_page(GFP_KERNEL);
+	if (!scratch)
+		goto out_err;
+
+	xdr_init_decode(&stream, &buf, NULL);
+	xdr_set_scratch_buffer(&stream, page_address(scratch), PAGE_SIZE);
 
 	/* Get the stripe count (number of stripe index) */
-	cnt = be32_to_cpup(p++);
+	p = xdr_inline_decode(&stream, 4);
+	if (unlikely(!p))
+		goto out_err_free_scratch;
+
+	cnt = be32_to_cpup(p);
 	dprintk("%s stripe count  %d\n", __func__, cnt);
 	if (cnt > NFS4_PNFS_MAX_STRIPE_CNT) {
 		printk(KERN_WARNING "%s: stripe count %d greater than "
 		       "supported maximum %d\n", __func__,
 			cnt, NFS4_PNFS_MAX_STRIPE_CNT);
-		goto out_err;
+		goto out_err_free_scratch;
+	}
+
+	/* read stripe indices */
+	stripe_indices = kcalloc(cnt, sizeof(u8), GFP_KERNEL);
+	if (!stripe_indices)
+		goto out_err_free_scratch;
+
+	p = xdr_inline_decode(&stream, cnt << 2);
+	if (unlikely(!p))
+		goto out_err_free_stripe_indices;
+
+	indexp = &stripe_indices[0];
+	max_stripe_index = 0;
+	for (i = 0; i < cnt; i++) {
+		*indexp = be32_to_cpup(p++);
+		max_stripe_index = max(max_stripe_index, *indexp);
+		indexp++;
 	}
 
 	/* Check the multipath list count */
-	indicesp = p;
-	p += XDR_QUADLEN(cnt << 2);
-	num = be32_to_cpup(p++);
+	p = xdr_inline_decode(&stream, 4);
+	if (unlikely(!p))
+		goto out_err_free_stripe_indices;
+
+	num = be32_to_cpup(p);
 	dprintk("%s ds_num %u\n", __func__, num);
 	if (num > NFS4_PNFS_MAX_MULTI_CNT) {
 		printk(KERN_WARNING "%s: multipath count %d greater than "
 			"supported maximum %d\n", __func__,
 			num, NFS4_PNFS_MAX_MULTI_CNT);
-		goto out_err;
+		goto out_err_free_stripe_indices;
 	}
+
+	/* validate stripe indices are all < num */
+	if (max_stripe_index >= num) {
+		printk(KERN_WARNING "%s: stripe index %u >= num ds %u\n",
+			__func__, max_stripe_index, num);
+		goto out_err_free_stripe_indices;
+	}
+
 	dsaddr = kzalloc(sizeof(*dsaddr) +
 			(sizeof(struct nfs4_pnfs_ds *) * (num - 1)),
 			GFP_KERNEL);
 	if (!dsaddr)
-		goto out_err;
-
-	dsaddr->stripe_indices = kzalloc(sizeof(u8) * cnt, GFP_KERNEL);
-	if (!dsaddr->stripe_indices)
-		goto out_err_free;
+		goto out_err_free_stripe_indices;
 
 	dsaddr->stripe_count = cnt;
+	dsaddr->stripe_indices = stripe_indices;
+	stripe_indices = NULL;
 	dsaddr->ds_num = num;
 
 	memcpy(&dsaddr->deviceid, &pdev->dev_id, sizeof(pdev->dev_id));
 
-	/* Go back an read stripe indices */
-	p = indicesp;
-	indexp = &dsaddr->stripe_indices[0];
-	for (i = 0; i < dsaddr->stripe_count; i++) {
-		*indexp = be32_to_cpup(p++);
-		if (*indexp >= num)
-			goto out_err_free;
-		indexp++;
-	}
-	/* Skip already read multipath list count */
-	p++;
-
 	for (i = 0; i < dsaddr->ds_num; i++) {
 		int j;
+		u32 mp_count;
+
+		p = xdr_inline_decode(&stream, 4);
+		if (unlikely(!p))
+			goto out_err_free_deviceid;
 
-		dummy = be32_to_cpup(p++); /* multipath count */
-		if (dummy > 1) {
+		mp_count = be32_to_cpup(p); /* multipath count */
+		if (mp_count > 1) {
 			printk(KERN_WARNING
 			       "%s: Multipath count %d not supported, "
 			       "skipping all greater than 1\n", __func__,
-				dummy);
+				mp_count);
 		}
-		for (j = 0; j < dummy; j++) {
+		for (j = 0; j < mp_count; j++) {
 			if (j == 0) {
-				dsaddr->ds_list[i] = decode_and_add_ds(&p, ino);
+				dsaddr->ds_list[i] = decode_and_add_ds(&stream,
+					ino);
 				if (dsaddr->ds_list[i] == NULL)
-					goto out_err_free;
+					goto out_err_free_deviceid;
 			} else {
 				u32 len;
 				/* skip extra multipath */
-				len = be32_to_cpup(p++);
-				p += XDR_QUADLEN(len);
-				len = be32_to_cpup(p++);
-				p += XDR_QUADLEN(len);
-				continue;
+
+				/* read len, skip */
+				p = xdr_inline_decode(&stream, 4);
+				if (unlikely(!p))
+					goto out_err_free_deviceid;
+				len = be32_to_cpup(p);
+
+				p = xdr_inline_decode(&stream, len);
+				if (unlikely(!p))
+					goto out_err_free_deviceid;
+
+				/* read len, skip */
+				p = xdr_inline_decode(&stream, 4);
+				if (unlikely(!p))
+					goto out_err_free_deviceid;
+				len = be32_to_cpup(p);
+
+				p = xdr_inline_decode(&stream, len);
+				if (unlikely(!p))
+					goto out_err_free_deviceid;
 			}
 		}
 	}
+
+	__free_page(scratch);
 	return dsaddr;
 
-out_err_free:
+out_err_free_deviceid:
 	nfs4_fl_free_deviceid(dsaddr);
+	/* stripe_indicies was part of dsaddr */
+	goto out_err_free_scratch;
+out_err_free_stripe_indices:
+	kfree(stripe_indices);
+out_err_free_scratch:
+	__free_page(scratch);
 out_err:
 	dprintk("%s ERROR: returning NULL\n", __func__);
 	return NULL;
@@ -498,11 +571,6 @@ get_device_info(struct inode *inode, struct nfs4_deviceid *dev_id)
 			goto out_free;
 	}
 
-	/* set pdev->area */
-	pdev->area = vmap(pages, max_pages, VM_MAP, PAGE_KERNEL);
-	if (!pdev->area)
-		goto out_free;
-
 	memcpy(&pdev->dev_id, dev_id, sizeof(*dev_id));
 	pdev->layout_type = LAYOUT_NFSV4_1_FILES;
 	pdev->pages = pages;
@@ -521,8 +589,6 @@ get_device_info(struct inode *inode, struct nfs4_deviceid *dev_id)
 	 */
 	dsaddr = decode_and_add_device(inode, pdev);
 out_free:
-	if (pdev->area != NULL)
-		vunmap(pdev->area);
 	for (i = 0; i < max_pages; i++)
 		__free_page(pages[i]);
 	kfree(pages);
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 1d84e7088af9..dfd1e6d7e6c3 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -41,6 +41,7 @@
 #include <linux/string.h>
 #include <linux/slab.h>
 #include <linux/sunrpc/clnt.h>
+#include <linux/sunrpc/gss_api.h>
 #include <linux/nfs.h>
 #include <linux/nfs4.h>
 #include <linux/nfs_fs.h>
@@ -71,7 +72,9 @@ static int _nfs4_proc_open(struct nfs4_opendata *data);
 static int _nfs4_recover_proc_open(struct nfs4_opendata *data);
 static int nfs4_do_fsinfo(struct nfs_server *, struct nfs_fh *, struct nfs_fsinfo *);
 static int nfs4_async_handle_error(struct rpc_task *, const struct nfs_server *, struct nfs4_state *);
-static int _nfs4_proc_lookup(struct inode *dir, const struct qstr *name, struct nfs_fh *fhandle, struct nfs_fattr *fattr);
+static int _nfs4_proc_lookup(struct rpc_clnt *client, struct inode *dir,
+			     const struct qstr *name, struct nfs_fh *fhandle,
+			     struct nfs_fattr *fattr);
 static int _nfs4_proc_getattr(struct nfs_server *server, struct nfs_fh *fhandle, struct nfs_fattr *fattr);
 static int nfs4_do_setattr(struct inode *inode, struct rpc_cred *cred,
 			    struct nfs_fattr *fattr, struct iattr *sattr,
@@ -85,6 +88,8 @@ static int nfs4_map_errors(int err)
 	switch (err) {
 	case -NFS4ERR_RESOURCE:
 		return -EREMOTEIO;
+	case -NFS4ERR_WRONGSEC:
+		return -EPERM;
 	case -NFS4ERR_BADOWNER:
 	case -NFS4ERR_BADNAME:
 		return -EINVAL;
@@ -657,7 +662,8 @@ struct rpc_call_ops nfs41_call_priv_sync_ops = {
 	.rpc_call_done = nfs41_call_sync_done,
 };
 
-static int nfs4_call_sync_sequence(struct nfs_server *server,
+static int nfs4_call_sync_sequence(struct rpc_clnt *clnt,
+				   struct nfs_server *server,
 				   struct rpc_message *msg,
 				   struct nfs4_sequence_args *args,
 				   struct nfs4_sequence_res *res,
@@ -673,7 +679,7 @@ static int nfs4_call_sync_sequence(struct nfs_server *server,
 		.cache_reply = cache_reply,
 	};
 	struct rpc_task_setup task_setup = {
-		.rpc_client = server->client,
+		.rpc_client = clnt,
 		.rpc_message = msg,
 		.callback_ops = &nfs41_call_sync_ops,
 		.callback_data = &data
@@ -692,13 +698,14 @@ static int nfs4_call_sync_sequence(struct nfs_server *server,
 	return ret;
 }
 
-int _nfs4_call_sync_session(struct nfs_server *server,
+int _nfs4_call_sync_session(struct rpc_clnt *clnt,
+			    struct nfs_server *server,
 			    struct rpc_message *msg,
 			    struct nfs4_sequence_args *args,
 			    struct nfs4_sequence_res *res,
 			    int cache_reply)
 {
-	return nfs4_call_sync_sequence(server, msg, args, res, cache_reply, 0);
+	return nfs4_call_sync_sequence(clnt, server, msg, args, res, cache_reply, 0);
 }
 
 #else
@@ -709,19 +716,28 @@ static int nfs4_sequence_done(struct rpc_task *task,
 }
 #endif /* CONFIG_NFS_V4_1 */
 
-int _nfs4_call_sync(struct nfs_server *server,
+int _nfs4_call_sync(struct rpc_clnt *clnt,
+		    struct nfs_server *server,
 		    struct rpc_message *msg,
 		    struct nfs4_sequence_args *args,
 		    struct nfs4_sequence_res *res,
 		    int cache_reply)
 {
 	args->sa_session = res->sr_session = NULL;
-	return rpc_call_sync(server->client, msg, 0);
+	return rpc_call_sync(clnt, msg, 0);
 }
 
-#define nfs4_call_sync(server, msg, args, res, cache_reply) \
-	(server)->nfs_client->cl_mvops->call_sync((server), (msg), &(args)->seq_args, \
-			&(res)->seq_res, (cache_reply))
+static inline
+int nfs4_call_sync(struct rpc_clnt *clnt,
+		   struct nfs_server *server,
+		   struct rpc_message *msg,
+		   struct nfs4_sequence_args *args,
+		   struct nfs4_sequence_res *res,
+		   int cache_reply)
+{
+	return server->nfs_client->cl_mvops->call_sync(clnt, server, msg,
+						args, res, cache_reply);
+}
 
 static void update_changeattr(struct inode *dir, struct nfs4_change_info *cinfo)
 {
@@ -1831,7 +1847,7 @@ static int _nfs4_do_setattr(struct inode *inode, struct rpc_cred *cred,
 	} else
 		memcpy(&arg.stateid, &zero_stateid, sizeof(arg.stateid));
 
-	status = nfs4_call_sync(server, &msg, &arg, &res, 1);
+	status = nfs4_call_sync(server->client, server, &msg, &arg.seq_args, &res.seq_res, 1);
 	if (status == 0 && state != NULL)
 		renew_lease(server, timestamp);
 	return status;
@@ -2090,7 +2106,7 @@ static int _nfs4_server_capabilities(struct nfs_server *server, struct nfs_fh *f
 	};
 	int status;
 
-	status = nfs4_call_sync(server, &msg, &args, &res, 0);
+	status = nfs4_call_sync(server->client, server, &msg, &args.seq_args, &res.seq_res, 0);
 	if (status == 0) {
 		memcpy(server->attr_bitmask, res.attr_bitmask, sizeof(server->attr_bitmask));
 		server->caps &= ~(NFS_CAP_ACLS|NFS_CAP_HARDLINKS|
@@ -2160,7 +2176,7 @@ static int _nfs4_lookup_root(struct nfs_server *server, struct nfs_fh *fhandle,
 	};
 
 	nfs_fattr_init(info->fattr);
-	return nfs4_call_sync(server, &msg, &args, &res, 0);
+	return nfs4_call_sync(server->client, server, &msg, &args.seq_args, &res.seq_res, 0);
 }
 
 static int nfs4_lookup_root(struct nfs_server *server, struct nfs_fh *fhandle,
@@ -2176,15 +2192,43 @@ static int nfs4_lookup_root(struct nfs_server *server, struct nfs_fh *fhandle,
 	return err;
 }
 
+static int nfs4_lookup_root_sec(struct nfs_server *server, struct nfs_fh *fhandle,
+				struct nfs_fsinfo *info, rpc_authflavor_t flavor)
+{
+	struct rpc_auth *auth;
+	int ret;
+
+	auth = rpcauth_create(flavor, server->client);
+	if (!auth) {
+		ret = -EIO;
+		goto out;
+	}
+	ret = nfs4_lookup_root(server, fhandle, info);
+	if (ret < 0)
+		ret = -EAGAIN;
+out:
+	return ret;
+}
+
 /*
  * get the file handle for the "/" directory on the server
  */
 static int nfs4_proc_get_root(struct nfs_server *server, struct nfs_fh *fhandle,
 			      struct nfs_fsinfo *info)
 {
-	int status;
+	int i, len, status = 0;
+	rpc_authflavor_t flav_array[NFS_MAX_SECFLAVORS + 2];
+
+	flav_array[0] = RPC_AUTH_UNIX;
+	len = gss_mech_list_pseudoflavors(&flav_array[1]);
+	flav_array[1+len] = RPC_AUTH_NULL;
+	len += 2;
 
-	status = nfs4_lookup_root(server, fhandle, info);
+	for (i = 0; i < len; i++) {
+		status = nfs4_lookup_root_sec(server, fhandle, info, flav_array[i]);
+		if (status == 0)
+			break;
+	}
 	if (status == 0)
 		status = nfs4_server_capabilities(server, fhandle);
 	if (status == 0)
@@ -2249,7 +2293,7 @@ static int _nfs4_proc_getattr(struct nfs_server *server, struct nfs_fh *fhandle,
 	};
 	
 	nfs_fattr_init(fattr);
-	return nfs4_call_sync(server, &msg, &args, &res, 0);
+	return nfs4_call_sync(server->client, server, &msg, &args.seq_args, &res.seq_res, 0);
 }
 
 static int nfs4_proc_getattr(struct nfs_server *server, struct nfs_fh *fhandle, struct nfs_fattr *fattr)
@@ -2309,9 +2353,9 @@ nfs4_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr,
 	return status;
 }
 
-static int _nfs4_proc_lookupfh(struct nfs_server *server, const struct nfs_fh *dirfh,
-		const struct qstr *name, struct nfs_fh *fhandle,
-		struct nfs_fattr *fattr)
+static int _nfs4_proc_lookupfh(struct rpc_clnt *clnt, struct nfs_server *server,
+		const struct nfs_fh *dirfh, const struct qstr *name,
+		struct nfs_fh *fhandle, struct nfs_fattr *fattr)
 {
 	int		       status;
 	struct nfs4_lookup_arg args = {
@@ -2333,7 +2377,7 @@ static int _nfs4_proc_lookupfh(struct nfs_server *server, const struct nfs_fh *d
 	nfs_fattr_init(fattr);
 
 	dprintk("NFS call  lookupfh %s\n", name->name);
-	status = nfs4_call_sync(server, &msg, &args, &res, 0);
+	status = nfs4_call_sync(clnt, server, &msg, &args.seq_args, &res.seq_res, 0);
 	dprintk("NFS reply lookupfh: %d\n", status);
 	return status;
 }
@@ -2345,7 +2389,7 @@ static int nfs4_proc_lookupfh(struct nfs_server *server, struct nfs_fh *dirfh,
 	struct nfs4_exception exception = { };
 	int err;
 	do {
-		err = _nfs4_proc_lookupfh(server, dirfh, name, fhandle, fattr);
+		err = _nfs4_proc_lookupfh(server->client, server, dirfh, name, fhandle, fattr);
 		/* FIXME: !!!! */
 		if (err == -NFS4ERR_MOVED) {
 			err = -EREMOTE;
@@ -2356,27 +2400,41 @@ static int nfs4_proc_lookupfh(struct nfs_server *server, struct nfs_fh *dirfh,
 	return err;
 }
 
-static int _nfs4_proc_lookup(struct inode *dir, const struct qstr *name,
-		struct nfs_fh *fhandle, struct nfs_fattr *fattr)
+static int _nfs4_proc_lookup(struct rpc_clnt *clnt, struct inode *dir,
+		const struct qstr *name, struct nfs_fh *fhandle,
+		struct nfs_fattr *fattr)
 {
 	int status;
 	
 	dprintk("NFS call  lookup %s\n", name->name);
-	status = _nfs4_proc_lookupfh(NFS_SERVER(dir), NFS_FH(dir), name, fhandle, fattr);
+	status = _nfs4_proc_lookupfh(clnt, NFS_SERVER(dir), NFS_FH(dir), name, fhandle, fattr);
 	if (status == -NFS4ERR_MOVED)
 		status = nfs4_get_referral(dir, name, fattr, fhandle);
 	dprintk("NFS reply lookup: %d\n", status);
 	return status;
 }
 
-static int nfs4_proc_lookup(struct inode *dir, struct qstr *name, struct nfs_fh *fhandle, struct nfs_fattr *fattr)
+void nfs_fixup_secinfo_attributes(struct nfs_fattr *fattr, struct nfs_fh *fh)
+{
+	memset(fh, 0, sizeof(struct nfs_fh));
+	fattr->fsid.major = 1;
+	fattr->valid |= NFS_ATTR_FATTR_TYPE | NFS_ATTR_FATTR_MODE |
+		NFS_ATTR_FATTR_NLINK | NFS_ATTR_FATTR_FSID | NFS_ATTR_FATTR_MOUNTPOINT;
+	fattr->mode = S_IFDIR | S_IRUGO | S_IXUGO;
+	fattr->nlink = 2;
+}
+
+static int nfs4_proc_lookup(struct rpc_clnt *clnt, struct inode *dir, struct qstr *name,
+			    struct nfs_fh *fhandle, struct nfs_fattr *fattr)
 {
 	struct nfs4_exception exception = { };
 	int err;
 	do {
 		err = nfs4_handle_exception(NFS_SERVER(dir),
-				_nfs4_proc_lookup(dir, name, fhandle, fattr),
+				_nfs4_proc_lookup(clnt, dir, name, fhandle, fattr),
 				&exception);
+		if (err == -EPERM)
+			nfs_fixup_secinfo_attributes(fattr, fhandle);
 	} while (exception.retry);
 	return err;
 }
@@ -2421,7 +2479,7 @@ static int _nfs4_proc_access(struct inode *inode, struct nfs_access_entry *entry
 	if (res.fattr == NULL)
 		return -ENOMEM;
 
-	status = nfs4_call_sync(server, &msg, &args, &res, 0);
+	status = nfs4_call_sync(server->client, server, &msg, &args.seq_args, &res.seq_res, 0);
 	if (!status) {
 		entry->mask = 0;
 		if (res.access & NFS4_ACCESS_READ)
@@ -2488,7 +2546,7 @@ static int _nfs4_proc_readlink(struct inode *inode, struct page *page,
 		.rpc_resp = &res,
 	};
 
-	return nfs4_call_sync(NFS_SERVER(inode), &msg, &args, &res, 0);
+	return nfs4_call_sync(NFS_SERVER(inode)->client, NFS_SERVER(inode), &msg, &args.seq_args, &res.seq_res, 0);
 }
 
 static int nfs4_proc_readlink(struct inode *inode, struct page *page,
@@ -2577,7 +2635,7 @@ static int _nfs4_proc_remove(struct inode *dir, struct qstr *name)
 	if (res.dir_attr == NULL)
 		goto out;
 
-	status = nfs4_call_sync(server, &msg, &args, &res, 1);
+	status = nfs4_call_sync(server->client, server, &msg, &args.seq_args, &res.seq_res, 1);
 	if (status == 0) {
 		update_changeattr(dir, &res.cinfo);
 		nfs_post_op_update_inode(dir, res.dir_attr);
@@ -2678,7 +2736,7 @@ static int _nfs4_proc_rename(struct inode *old_dir, struct qstr *old_name,
 	if (res.old_fattr == NULL || res.new_fattr == NULL)
 		goto out;
 
-	status = nfs4_call_sync(server, &msg, &arg, &res, 1);
+	status = nfs4_call_sync(server->client, server, &msg, &arg.seq_args, &res.seq_res, 1);
 	if (!status) {
 		update_changeattr(old_dir, &res.old_cinfo);
 		nfs_post_op_update_inode(old_dir, res.old_fattr);
@@ -2729,7 +2787,7 @@ static int _nfs4_proc_link(struct inode *inode, struct inode *dir, struct qstr *
 	if (res.fattr == NULL || res.dir_attr == NULL)
 		goto out;
 
-	status = nfs4_call_sync(server, &msg, &arg, &res, 1);
+	status = nfs4_call_sync(server->client, server, &msg, &arg.seq_args, &res.seq_res, 1);
 	if (!status) {
 		update_changeattr(dir, &res.cinfo);
 		nfs_post_op_update_inode(dir, res.dir_attr);
@@ -2792,8 +2850,8 @@ static struct nfs4_createdata *nfs4_alloc_createdata(struct inode *dir,
 
 static int nfs4_do_create(struct inode *dir, struct dentry *dentry, struct nfs4_createdata *data)
 {
-	int status = nfs4_call_sync(NFS_SERVER(dir), &data->msg,
-				    &data->arg, &data->res, 1);
+	int status = nfs4_call_sync(NFS_SERVER(dir)->client, NFS_SERVER(dir), &data->msg,
+				    &data->arg.seq_args, &data->res.seq_res, 1);
 	if (status == 0) {
 		update_changeattr(dir, &data->res.dir_cinfo);
 		nfs_post_op_update_inode(dir, data->res.dir_fattr);
@@ -2905,7 +2963,7 @@ static int _nfs4_proc_readdir(struct dentry *dentry, struct rpc_cred *cred,
 			(unsigned long long)cookie);
 	nfs4_setup_readdir(cookie, NFS_COOKIEVERF(dir), dentry, &args);
 	res.pgbase = args.pgbase;
-	status = nfs4_call_sync(NFS_SERVER(dir), &msg, &args, &res, 0);
+	status = nfs4_call_sync(NFS_SERVER(dir)->client, NFS_SERVER(dir), &msg, &args.seq_args, &res.seq_res, 0);
 	if (status >= 0) {
 		memcpy(NFS_COOKIEVERF(dir), res.verifier.data, NFS4_VERIFIER_SIZE);
 		status += args.pgbase;
@@ -2997,7 +3055,7 @@ static int _nfs4_proc_statfs(struct nfs_server *server, struct nfs_fh *fhandle,
 	};
 
 	nfs_fattr_init(fsstat->fattr);
-	return  nfs4_call_sync(server, &msg, &args, &res, 0);
+	return  nfs4_call_sync(server->client, server, &msg, &args.seq_args, &res.seq_res, 0);
 }
 
 static int nfs4_proc_statfs(struct nfs_server *server, struct nfs_fh *fhandle, struct nfs_fsstat *fsstat)
@@ -3028,7 +3086,7 @@ static int _nfs4_do_fsinfo(struct nfs_server *server, struct nfs_fh *fhandle,
 		.rpc_resp = &res,
 	};
 
-	return nfs4_call_sync(server, &msg, &args, &res, 0);
+	return nfs4_call_sync(server->client, server, &msg, &args.seq_args, &res.seq_res, 0);
 }
 
 static int nfs4_do_fsinfo(struct nfs_server *server, struct nfs_fh *fhandle, struct nfs_fsinfo *fsinfo)
@@ -3073,7 +3131,7 @@ static int _nfs4_proc_pathconf(struct nfs_server *server, struct nfs_fh *fhandle
 	}
 
 	nfs_fattr_init(pathconf->fattr);
-	return nfs4_call_sync(server, &msg, &args, &res, 0);
+	return nfs4_call_sync(server->client, server, &msg, &args.seq_args, &res.seq_res, 0);
 }
 
 static int nfs4_proc_pathconf(struct nfs_server *server, struct nfs_fh *fhandle,
@@ -3195,12 +3253,9 @@ static void nfs4_proc_write_setup(struct nfs_write_data *data, struct rpc_messag
 	msg->rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_WRITE];
 }
 
-static int nfs4_commit_done(struct rpc_task *task, struct nfs_write_data *data)
+static int nfs4_commit_done_cb(struct rpc_task *task, struct nfs_write_data *data)
 {
 	struct inode *inode = data->inode;
-	
-	if (!nfs4_sequence_done(task, &data->res.seq_res))
-		return -EAGAIN;
 
 	if (nfs4_async_handle_error(task, NFS_SERVER(inode), NULL) == -EAGAIN) {
 		nfs_restart_rpc(task, NFS_SERVER(inode)->nfs_client);
@@ -3210,11 +3265,24 @@ static int nfs4_commit_done(struct rpc_task *task, struct nfs_write_data *data)
 	return 0;
 }
 
+static int nfs4_commit_done(struct rpc_task *task, struct nfs_write_data *data)
+{
+	if (!nfs4_sequence_done(task, &data->res.seq_res))
+		return -EAGAIN;
+	return data->write_done_cb(task, data);
+}
+
 static void nfs4_proc_commit_setup(struct nfs_write_data *data, struct rpc_message *msg)
 {
 	struct nfs_server *server = NFS_SERVER(data->inode);
-	
-	data->args.bitmask = server->cache_consistency_bitmask;
+
+	if (data->lseg) {
+		data->args.bitmask = NULL;
+		data->res.fattr = NULL;
+	} else
+		data->args.bitmask = server->cache_consistency_bitmask;
+	if (!data->write_done_cb)
+		data->write_done_cb = nfs4_commit_done_cb;
 	data->res.server = server;
 	msg->rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_COMMIT];
 }
@@ -3452,7 +3520,7 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
 		resp_buf = buf;
 		buf_to_pages(buf, buflen, args.acl_pages, &args.acl_pgbase);
 	}
-	ret = nfs4_call_sync(NFS_SERVER(inode), &msg, &args, &res, 0);
+	ret = nfs4_call_sync(NFS_SERVER(inode)->client, NFS_SERVER(inode), &msg, &args.seq_args, &res.seq_res, 0);
 	if (ret)
 		goto out_free;
 	if (res.acl_len > args.acl_len)
@@ -3527,7 +3595,7 @@ static int __nfs4_proc_set_acl(struct inode *inode, const void *buf, size_t bufl
 	if (i < 0)
 		return i;
 	nfs_inode_return_delegation(inode);
-	ret = nfs4_call_sync(server, &msg, &arg, &res, 1);
+	ret = nfs4_call_sync(server->client, server, &msg, &arg.seq_args, &res.seq_res, 1);
 
 	/*
 	 * Free each page after tx, so the only ref left is
@@ -3890,7 +3958,7 @@ static int _nfs4_proc_getlk(struct nfs4_state *state, int cmd, struct file_lock
 	lsp = request->fl_u.nfs4_fl.owner;
 	arg.lock_owner.id = lsp->ls_id.id;
 	arg.lock_owner.s_dev = server->s_dev;
-	status = nfs4_call_sync(server, &msg, &arg, &res, 1);
+	status = nfs4_call_sync(server->client, server, &msg, &arg.seq_args, &res.seq_res, 1);
 	switch (status) {
 		case 0:
 			request->fl_type = F_UNLCK;
@@ -4618,12 +4686,46 @@ int nfs4_proc_fs_locations(struct inode *dir, const struct qstr *name,
 	nfs_fattr_init(&fs_locations->fattr);
 	fs_locations->server = server;
 	fs_locations->nlocations = 0;
-	status = nfs4_call_sync(server, &msg, &args, &res, 0);
+	status = nfs4_call_sync(server->client, server, &msg, &args.seq_args, &res.seq_res, 0);
 	nfs_fixup_referral_attributes(&fs_locations->fattr);
 	dprintk("%s: returned status = %d\n", __func__, status);
 	return status;
 }
 
+static int _nfs4_proc_secinfo(struct inode *dir, const struct qstr *name, struct nfs4_secinfo_flavors *flavors)
+{
+	int status;
+	struct nfs4_secinfo_arg args = {
+		.dir_fh = NFS_FH(dir),
+		.name   = name,
+	};
+	struct nfs4_secinfo_res res = {
+		.flavors     = flavors,
+	};
+	struct rpc_message msg = {
+		.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_SECINFO],
+		.rpc_argp = &args,
+		.rpc_resp = &res,
+	};
+
+	dprintk("NFS call  secinfo %s\n", name->name);
+	status = nfs4_call_sync(NFS_SERVER(dir)->client, NFS_SERVER(dir), &msg, &args.seq_args, &res.seq_res, 0);
+	dprintk("NFS reply  secinfo: %d\n", status);
+	return status;
+}
+
+int nfs4_proc_secinfo(struct inode *dir, const struct qstr *name, struct nfs4_secinfo_flavors *flavors)
+{
+	struct nfs4_exception exception = { };
+	int err;
+	do {
+		err = nfs4_handle_exception(NFS_SERVER(dir),
+				_nfs4_proc_secinfo(dir, name, flavors),
+				&exception);
+	} while (exception.retry);
+	return err;
+}
+
 #ifdef CONFIG_NFS_V4_1
 /*
  * Check the exchange flags returned by the server for invalid flags, having
@@ -5516,8 +5618,6 @@ static void nfs4_layoutget_release(void *calldata)
 	struct nfs4_layoutget *lgp = calldata;
 
 	dprintk("--> %s\n", __func__);
-	if (lgp->res.layout.buf != NULL)
-		free_page((unsigned long) lgp->res.layout.buf);
 	put_nfs_open_context(lgp->args.ctx);
 	kfree(calldata);
 	dprintk("<-- %s\n", __func__);
@@ -5549,12 +5649,7 @@ int nfs4_proc_layoutget(struct nfs4_layoutget *lgp)
 
 	dprintk("--> %s\n", __func__);
 
-	lgp->res.layout.buf = (void *)__get_free_page(GFP_NOFS);
-	if (lgp->res.layout.buf == NULL) {
-		nfs4_layoutget_release(lgp);
-		return -ENOMEM;
-	}
-
+	lgp->res.layoutp = &lgp->args.layout;
 	lgp->res.seq_res.sr_slot = NULL;
 	task = rpc_run_task(&task_setup_data);
 	if (IS_ERR(task))
@@ -5586,7 +5681,7 @@ _nfs4_proc_getdeviceinfo(struct nfs_server *server, struct pnfs_device *pdev)
 	int status;
 
 	dprintk("--> %s\n", __func__);
-	status = nfs4_call_sync(server, &msg, &args, &res, 0);
+	status = nfs4_call_sync(server->client, server, &msg, &args.seq_args, &res.seq_res, 0);
 	dprintk("<-- %s status=%d\n", __func__, status);
 
 	return status;
@@ -5606,6 +5701,100 @@ int nfs4_proc_getdeviceinfo(struct nfs_server *server, struct pnfs_device *pdev)
 }
 EXPORT_SYMBOL_GPL(nfs4_proc_getdeviceinfo);
 
+static void nfs4_layoutcommit_prepare(struct rpc_task *task, void *calldata)
+{
+	struct nfs4_layoutcommit_data *data = calldata;
+	struct nfs_server *server = NFS_SERVER(data->args.inode);
+
+	if (nfs4_setup_sequence(server, &data->args.seq_args,
+				&data->res.seq_res, 1, task))
+		return;
+	rpc_call_start(task);
+}
+
+static void
+nfs4_layoutcommit_done(struct rpc_task *task, void *calldata)
+{
+	struct nfs4_layoutcommit_data *data = calldata;
+	struct nfs_server *server = NFS_SERVER(data->args.inode);
+
+	if (!nfs4_sequence_done(task, &data->res.seq_res))
+		return;
+
+	switch (task->tk_status) { /* Just ignore these failures */
+	case NFS4ERR_DELEG_REVOKED: /* layout was recalled */
+	case NFS4ERR_BADIOMODE:     /* no IOMODE_RW layout for range */
+	case NFS4ERR_BADLAYOUT:     /* no layout */
+	case NFS4ERR_GRACE:	    /* loca_recalim always false */
+		task->tk_status = 0;
+	}
+
+	if (nfs4_async_handle_error(task, server, NULL) == -EAGAIN) {
+		nfs_restart_rpc(task, server->nfs_client);
+		return;
+	}
+
+	if (task->tk_status == 0)
+		nfs_post_op_update_inode_force_wcc(data->args.inode,
+						   data->res.fattr);
+}
+
+static void nfs4_layoutcommit_release(void *calldata)
+{
+	struct nfs4_layoutcommit_data *data = calldata;
+
+	/* Matched by references in pnfs_set_layoutcommit */
+	put_lseg(data->lseg);
+	put_rpccred(data->cred);
+	kfree(data);
+}
+
+static const struct rpc_call_ops nfs4_layoutcommit_ops = {
+	.rpc_call_prepare = nfs4_layoutcommit_prepare,
+	.rpc_call_done = nfs4_layoutcommit_done,
+	.rpc_release = nfs4_layoutcommit_release,
+};
+
+int
+nfs4_proc_layoutcommit(struct nfs4_layoutcommit_data *data, bool sync)
+{
+	struct rpc_message msg = {
+		.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_LAYOUTCOMMIT],
+		.rpc_argp = &data->args,
+		.rpc_resp = &data->res,
+		.rpc_cred = data->cred,
+	};
+	struct rpc_task_setup task_setup_data = {
+		.task = &data->task,
+		.rpc_client = NFS_CLIENT(data->args.inode),
+		.rpc_message = &msg,
+		.callback_ops = &nfs4_layoutcommit_ops,
+		.callback_data = data,
+		.flags = RPC_TASK_ASYNC,
+	};
+	struct rpc_task *task;
+	int status = 0;
+
+	dprintk("NFS: %4d initiating layoutcommit call. sync %d "
+		"lbw: %llu inode %lu\n",
+		data->task.tk_pid, sync,
+		data->args.lastbytewritten,
+		data->args.inode->i_ino);
+
+	task = rpc_run_task(&task_setup_data);
+	if (IS_ERR(task))
+		return PTR_ERR(task);
+	if (sync == false)
+		goto out;
+	status = nfs4_wait_for_completion_rpc_task(task);
+	if (status != 0)
+		goto out;
+	status = task->tk_status;
+out:
+	dprintk("%s: status %d\n", __func__, status);
+	rpc_put_task(task);
+	return status;
+}
 #endif /* CONFIG_NFS_V4_1 */
 
 struct nfs4_state_recovery_ops nfs40_reboot_recovery_ops = {
@@ -5741,6 +5930,7 @@ const struct nfs_rpc_ops nfs_v4_clientops = {
 	.close_context  = nfs4_close_context,
 	.open_context	= nfs4_atomic_open,
 	.init_client	= nfs4_init_client,
+	.secinfo	= nfs4_proc_secinfo,
 };
 
 static const struct xattr_handler nfs4_xattr_nfs4_acl_handler = {
diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index ab1bf5bb021f..a6804f704d9d 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -590,7 +590,8 @@ nfs4_get_open_state(struct inode *inode, struct nfs4_state_owner *owner)
 		state->owner = owner;
 		atomic_inc(&owner->so_count);
 		list_add(&state->inode_states, &nfsi->open_states);
-		state->inode = igrab(inode);
+		ihold(inode);
+		state->inode = inode;
 		spin_unlock(&inode->i_lock);
 		/* Note: The reclaim code dictates that we add stateless
 		 * and read-only stateids to the end of the list */
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index 0cf560f77884..dddfb5795d7b 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -46,6 +46,7 @@
 #include <linux/kdev_t.h>
 #include <linux/sunrpc/clnt.h>
 #include <linux/sunrpc/msg_prot.h>
+#include <linux/sunrpc/gss_api.h>
 #include <linux/nfs.h>
 #include <linux/nfs4.h>
 #include <linux/nfs_fs.h>
@@ -112,7 +113,7 @@ static int nfs4_stat_to_errno(int);
 #define encode_restorefh_maxsz  (op_encode_hdr_maxsz)
 #define decode_restorefh_maxsz  (op_decode_hdr_maxsz)
 #define encode_fsinfo_maxsz	(encode_getattr_maxsz)
-#define decode_fsinfo_maxsz	(op_decode_hdr_maxsz + 11)
+#define decode_fsinfo_maxsz	(op_decode_hdr_maxsz + 15)
 #define encode_renew_maxsz	(op_encode_hdr_maxsz + 3)
 #define decode_renew_maxsz	(op_decode_hdr_maxsz)
 #define encode_setclientid_maxsz \
@@ -253,6 +254,8 @@ static int nfs4_stat_to_errno(int);
 				(encode_getattr_maxsz)
 #define decode_fs_locations_maxsz \
 				(0)
+#define encode_secinfo_maxsz	(op_encode_hdr_maxsz + nfs4_name_maxsz)
+#define decode_secinfo_maxsz	(op_decode_hdr_maxsz + 4 + (NFS_MAX_SECFLAVORS * (16 + GSS_OID_MAX_LEN)))
 
 #if defined(CONFIG_NFS_V4_1)
 #define NFS4_MAX_MACHINE_NAME_LEN (64)
@@ -324,6 +327,18 @@ static int nfs4_stat_to_errno(int);
 #define decode_layoutget_maxsz	(op_decode_hdr_maxsz + 8 + \
 				decode_stateid_maxsz + \
 				XDR_QUADLEN(PNFS_LAYOUT_MAXSIZE))
+#define encode_layoutcommit_maxsz (op_encode_hdr_maxsz +          \
+				2 /* offset */ + \
+				2 /* length */ + \
+				1 /* reclaim */ + \
+				encode_stateid_maxsz + \
+				1 /* new offset (true) */ + \
+				2 /* last byte written */ + \
+				1 /* nt_timechanged (false) */ + \
+				1 /* layoutupdate4 layout type */ + \
+				1 /* NULL filelayout layoutupdate4 payload */)
+#define decode_layoutcommit_maxsz (op_decode_hdr_maxsz + 3)
+
 #else /* CONFIG_NFS_V4_1 */
 #define encode_sequence_maxsz	0
 #define decode_sequence_maxsz	0
@@ -676,6 +691,14 @@ static int nfs4_stat_to_errno(int);
 				 decode_putfh_maxsz + \
 				 decode_lookup_maxsz + \
 				 decode_fs_locations_maxsz)
+#define NFS4_enc_secinfo_sz 	(compound_encode_hdr_maxsz + \
+				encode_sequence_maxsz + \
+				encode_putfh_maxsz + \
+				encode_secinfo_maxsz)
+#define NFS4_dec_secinfo_sz	(compound_decode_hdr_maxsz + \
+				decode_sequence_maxsz + \
+				decode_putfh_maxsz + \
+				decode_secinfo_maxsz)
 #if defined(CONFIG_NFS_V4_1)
 #define NFS4_enc_exchange_id_sz \
 				(compound_encode_hdr_maxsz + \
@@ -727,6 +750,17 @@ static int nfs4_stat_to_errno(int);
 				decode_sequence_maxsz + \
 				decode_putfh_maxsz +        \
 				decode_layoutget_maxsz)
+#define NFS4_enc_layoutcommit_sz (compound_encode_hdr_maxsz + \
+				encode_sequence_maxsz +\
+				encode_putfh_maxsz + \
+				encode_layoutcommit_maxsz + \
+				encode_getattr_maxsz)
+#define NFS4_dec_layoutcommit_sz (compound_decode_hdr_maxsz + \
+				decode_sequence_maxsz + \
+				decode_putfh_maxsz + \
+				decode_layoutcommit_maxsz + \
+				decode_getattr_maxsz)
+
 
 const u32 nfs41_maxwrite_overhead = ((RPC_MAX_HEADER_WITH_AUTH +
 				      compound_encode_hdr_maxsz +
@@ -1620,6 +1654,18 @@ static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *state
 	hdr->replen += decode_delegreturn_maxsz;
 }
 
+static void encode_secinfo(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
+{
+	int len = name->len;
+	__be32 *p;
+
+	p = reserve_space(xdr, 8 + len);
+	*p++ = cpu_to_be32(OP_SECINFO);
+	xdr_encode_opaque(p, name->name, len);
+	hdr->nops++;
+	hdr->replen += decode_secinfo_maxsz;
+}
+
 #if defined(CONFIG_NFS_V4_1)
 /* NFSv4.1 operations */
 static void encode_exchange_id(struct xdr_stream *xdr,
@@ -1816,6 +1862,34 @@ encode_layoutget(struct xdr_stream *xdr,
 	hdr->nops++;
 	hdr->replen += decode_layoutget_maxsz;
 }
+
+static int
+encode_layoutcommit(struct xdr_stream *xdr,
+		    const struct nfs4_layoutcommit_args *args,
+		    struct compound_hdr *hdr)
+{
+	__be32 *p;
+
+	dprintk("%s: lbw: %llu type: %d\n", __func__, args->lastbytewritten,
+		NFS_SERVER(args->inode)->pnfs_curr_ld->id);
+
+	p = reserve_space(xdr, 48 + NFS4_STATEID_SIZE);
+	*p++ = cpu_to_be32(OP_LAYOUTCOMMIT);
+	/* Only whole file layouts */
+	p = xdr_encode_hyper(p, 0); /* offset */
+	p = xdr_encode_hyper(p, NFS4_MAX_UINT64); /* length */
+	*p++ = cpu_to_be32(0); /* reclaim */
+	p = xdr_encode_opaque_fixed(p, args->stateid.data, NFS4_STATEID_SIZE);
+	*p++ = cpu_to_be32(1); /* newoffset = TRUE */
+	p = xdr_encode_hyper(p, args->lastbytewritten);
+	*p++ = cpu_to_be32(0); /* Never send time_modify_changed */
+	*p++ = cpu_to_be32(NFS_SERVER(args->inode)->pnfs_curr_ld->id);/* type */
+	*p++ = cpu_to_be32(0); /* no file layout payload */
+
+	hdr->nops++;
+	hdr->replen += decode_layoutcommit_maxsz;
+	return 0;
+}
 #endif /* CONFIG_NFS_V4_1 */
 
 /*
@@ -2294,7 +2368,8 @@ static void nfs4_xdr_enc_commit(struct rpc_rqst *req, struct xdr_stream *xdr,
 	encode_sequence(xdr, &args->seq_args, &hdr);
 	encode_putfh(xdr, args->fh, &hdr);
 	encode_commit(xdr, args, &hdr);
-	encode_getfattr(xdr, args->bitmask, &hdr);
+	if (args->bitmask)
+		encode_getfattr(xdr, args->bitmask, &hdr);
 	encode_nops(&hdr);
 }
 
@@ -2465,6 +2540,24 @@ static void nfs4_xdr_enc_fs_locations(struct rpc_rqst *req,
 	encode_nops(&hdr);
 }
 
+/*
+ * Encode SECINFO request
+ */
+static void nfs4_xdr_enc_secinfo(struct rpc_rqst *req,
+				struct xdr_stream *xdr,
+				struct nfs4_secinfo_arg *args)
+{
+	struct compound_hdr hdr = {
+		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
+	};
+
+	encode_compound_hdr(xdr, req, &hdr);
+	encode_sequence(xdr, &args->seq_args, &hdr);
+	encode_putfh(xdr, args->dir_fh, &hdr);
+	encode_secinfo(xdr, args->name, &hdr);
+	encode_nops(&hdr);
+}
+
 #if defined(CONFIG_NFS_V4_1)
 /*
  * EXCHANGE_ID request
@@ -2604,8 +2697,32 @@ static void nfs4_xdr_enc_layoutget(struct rpc_rqst *req,
 	encode_sequence(xdr, &args->seq_args, &hdr);
 	encode_putfh(xdr, NFS_FH(args->inode), &hdr);
 	encode_layoutget(xdr, args, &hdr);
+
+	xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2,
+	    args->layout.pages, 0, args->layout.pglen);
+
 	encode_nops(&hdr);
 }
+
+/*
+ *  Encode LAYOUTCOMMIT request
+ */
+static int nfs4_xdr_enc_layoutcommit(struct rpc_rqst *req,
+				     struct xdr_stream *xdr,
+				     struct nfs4_layoutcommit_args *args)
+{
+	struct compound_hdr hdr = {
+		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
+	};
+
+	encode_compound_hdr(xdr, req, &hdr);
+	encode_sequence(xdr, &args->seq_args, &hdr);
+	encode_putfh(xdr, NFS_FH(args->inode), &hdr);
+	encode_layoutcommit(xdr, args, &hdr);
+	encode_getfattr(xdr, args->bitmask, &hdr);
+	encode_nops(&hdr);
+	return 0;
+}
 #endif /* CONFIG_NFS_V4_1 */
 
 static void print_overflow_msg(const char *func, const struct xdr_stream *xdr)
@@ -2925,6 +3042,7 @@ static int decode_attr_error(struct xdr_stream *xdr, uint32_t *bitmap)
 		if (unlikely(!p))
 			goto out_overflow;
 		bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR;
+		return -be32_to_cpup(p);
 	}
 	return 0;
 out_overflow:
@@ -3912,6 +4030,10 @@ static int decode_getfattr_attrs(struct xdr_stream *xdr, uint32_t *bitmap,
 	fattr->valid |= status;
 
 	status = decode_attr_error(xdr, bitmap);
+	if (status == -NFS4ERR_WRONGSEC) {
+		nfs_fixup_secinfo_attributes(fattr, fh);
+		status = 0;
+	}
 	if (status < 0)
 		goto xdr_error;
 
@@ -4680,6 +4802,73 @@ static int decode_delegreturn(struct xdr_stream *xdr)
 	return decode_op_hdr(xdr, OP_DELEGRETURN);
 }
 
+static int decode_secinfo_gss(struct xdr_stream *xdr, struct nfs4_secinfo_flavor *flavor)
+{
+	__be32 *p;
+
+	p = xdr_inline_decode(xdr, 4);
+	if (unlikely(!p))
+		goto out_overflow;
+	flavor->gss.sec_oid4.len = be32_to_cpup(p);
+	if (flavor->gss.sec_oid4.len > GSS_OID_MAX_LEN)
+		goto out_err;
+
+	p = xdr_inline_decode(xdr, flavor->gss.sec_oid4.len);
+	if (unlikely(!p))
+		goto out_overflow;
+	memcpy(flavor->gss.sec_oid4.data, p, flavor->gss.sec_oid4.len);
+
+	p = xdr_inline_decode(xdr, 8);
+	if (unlikely(!p))
+		goto out_overflow;
+	flavor->gss.qop4 = be32_to_cpup(p++);
+	flavor->gss.service = be32_to_cpup(p);
+
+	return 0;
+
+out_overflow:
+	print_overflow_msg(__func__, xdr);
+	return -EIO;
+out_err:
+	return -EINVAL;
+}
+
+static int decode_secinfo(struct xdr_stream *xdr, struct nfs4_secinfo_res *res)
+{
+	struct nfs4_secinfo_flavor *sec_flavor;
+	int status;
+	__be32 *p;
+	int i;
+
+	status = decode_op_hdr(xdr, OP_SECINFO);
+	p = xdr_inline_decode(xdr, 4);
+	if (unlikely(!p))
+		goto out_overflow;
+	res->flavors->num_flavors = be32_to_cpup(p);
+
+	for (i = 0; i < res->flavors->num_flavors; i++) {
+		sec_flavor = &res->flavors->flavors[i];
+		if ((char *)&sec_flavor[1] - (char *)res > PAGE_SIZE)
+			break;
+
+		p = xdr_inline_decode(xdr, 4);
+		if (unlikely(!p))
+			goto out_overflow;
+		sec_flavor->flavor = be32_to_cpup(p);
+
+		if (sec_flavor->flavor == RPC_AUTH_GSS) {
+			if (decode_secinfo_gss(xdr, sec_flavor))
+				break;
+		}
+	}
+
+	return 0;
+
+out_overflow:
+	print_overflow_msg(__func__, xdr);
+	return -EIO;
+}
+
 #if defined(CONFIG_NFS_V4_1)
 static int decode_exchange_id(struct xdr_stream *xdr,
 			      struct nfs41_exchange_id_res *res)
@@ -4950,6 +5139,9 @@ static int decode_layoutget(struct xdr_stream *xdr, struct rpc_rqst *req,
 	__be32 *p;
 	int status;
 	u32 layout_count;
+	struct xdr_buf *rcvbuf = &req->rq_rcv_buf;
+	struct kvec *iov = rcvbuf->head;
+	u32 hdrlen, recvd;
 
 	status = decode_op_hdr(xdr, OP_LAYOUTGET);
 	if (status)
@@ -4966,17 +5158,14 @@ static int decode_layoutget(struct xdr_stream *xdr, struct rpc_rqst *req,
 		return -EINVAL;
 	}
 
-	p = xdr_inline_decode(xdr, 24);
+	p = xdr_inline_decode(xdr, 28);
 	if (unlikely(!p))
 		goto out_overflow;
 	p = xdr_decode_hyper(p, &res->range.offset);
 	p = xdr_decode_hyper(p, &res->range.length);
 	res->range.iomode = be32_to_cpup(p++);
 	res->type = be32_to_cpup(p++);
-
-	status = decode_opaque_inline(xdr, &res->layout.len, (char **)&p);
-	if (unlikely(status))
-		return status;
+	res->layoutp->len = be32_to_cpup(p);
 
 	dprintk("%s roff:%lu rlen:%lu riomode:%d, lo_type:0x%x, lo.len:%d\n",
 		__func__,
@@ -4984,12 +5173,18 @@ static int decode_layoutget(struct xdr_stream *xdr, struct rpc_rqst *req,
 		(unsigned long)res->range.length,
 		res->range.iomode,
 		res->type,
-		res->layout.len);
+		res->layoutp->len);
 
-	/* nfs4_proc_layoutget allocated a single page */
-	if (res->layout.len > PAGE_SIZE)
-		return -ENOMEM;
-	memcpy(res->layout.buf, p, res->layout.len);
+	hdrlen = (u8 *) xdr->p - (u8 *) iov->iov_base;
+	recvd = req->rq_rcv_buf.len - hdrlen;
+	if (res->layoutp->len > recvd) {
+		dprintk("NFS: server cheating in layoutget reply: "
+				"layout len %u > recvd %u\n",
+				res->layoutp->len, recvd);
+		return -EINVAL;
+	}
+
+	xdr_read_pages(xdr, res->layoutp->len);
 
 	if (layout_count > 1) {
 		/* We only handle a length one array at the moment.  Any
@@ -5006,6 +5201,35 @@ out_overflow:
 	print_overflow_msg(__func__, xdr);
 	return -EIO;
 }
+
+static int decode_layoutcommit(struct xdr_stream *xdr,
+			       struct rpc_rqst *req,
+			       struct nfs4_layoutcommit_res *res)
+{
+	__be32 *p;
+	__u32 sizechanged;
+	int status;
+
+	status = decode_op_hdr(xdr, OP_LAYOUTCOMMIT);
+	if (status)
+		return status;
+
+	p = xdr_inline_decode(xdr, 4);
+	if (unlikely(!p))
+		goto out_overflow;
+	sizechanged = be32_to_cpup(p);
+
+	if (sizechanged) {
+		/* throw away new size */
+		p = xdr_inline_decode(xdr, 8);
+		if (unlikely(!p))
+			goto out_overflow;
+	}
+	return 0;
+out_overflow:
+	print_overflow_msg(__func__, xdr);
+	return -EIO;
+}
 #endif /* CONFIG_NFS_V4_1 */
 
 /*
@@ -5723,8 +5947,9 @@ static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
 	status = decode_commit(xdr, res);
 	if (status)
 		goto out;
-	decode_getfattr(xdr, res->fattr, res->server,
-			!RPC_IS_ASYNC(rqstp->rq_task));
+	if (res->fattr)
+		decode_getfattr(xdr, res->fattr, res->server,
+				!RPC_IS_ASYNC(rqstp->rq_task));
 out:
 	return status;
 }
@@ -5919,6 +6144,32 @@ out:
 	return status;
 }
 
+/*
+ * Decode SECINFO response
+ */
+static int nfs4_xdr_dec_secinfo(struct rpc_rqst *rqstp,
+				struct xdr_stream *xdr,
+				struct nfs4_secinfo_res *res)
+{
+	struct compound_hdr hdr;
+	int status;
+
+	status = decode_compound_hdr(xdr, &hdr);
+	if (status)
+		goto out;
+	status = decode_sequence(xdr, &res->seq_res, rqstp);
+	if (status)
+		goto out;
+	status = decode_putfh(xdr);
+	if (status)
+		goto out;
+	status = decode_secinfo(xdr, res);
+	if (status)
+		goto out;
+out:
+	return status;
+}
+
 #if defined(CONFIG_NFS_V4_1)
 /*
  * Decode EXCHANGE_ID response
@@ -6066,6 +6317,34 @@ static int nfs4_xdr_dec_layoutget(struct rpc_rqst *rqstp,
 out:
 	return status;
 }
+
+/*
+ * Decode LAYOUTCOMMIT response
+ */
+static int nfs4_xdr_dec_layoutcommit(struct rpc_rqst *rqstp,
+				     struct xdr_stream *xdr,
+				     struct nfs4_layoutcommit_res *res)
+{
+	struct compound_hdr hdr;
+	int status;
+
+	status = decode_compound_hdr(xdr, &hdr);
+	if (status)
+		goto out;
+	status = decode_sequence(xdr, &res->seq_res, rqstp);
+	if (status)
+		goto out;
+	status = decode_putfh(xdr);
+	if (status)
+		goto out;
+	status = decode_layoutcommit(xdr, rqstp, res);
+	if (status)
+		goto out;
+	decode_getfattr(xdr, res->fattr, res->server,
+			!RPC_IS_ASYNC(rqstp->rq_task));
+out:
+	return status;
+}
 #endif /* CONFIG_NFS_V4_1 */
 
 /**
@@ -6180,10 +6459,6 @@ static struct {
 	{ NFS4ERR_SYMLINK,	-ELOOP		},
 	{ NFS4ERR_OP_ILLEGAL,	-EOPNOTSUPP	},
 	{ NFS4ERR_DEADLOCK,	-EDEADLK	},
-	{ NFS4ERR_WRONGSEC,	-EPERM		}, /* FIXME: this needs
-						    * to be handled by a
-						    * middle-layer.
-						    */
 	{ -1,			-EIO		}
 };
 
@@ -6258,6 +6533,7 @@ struct rpc_procinfo	nfs4_procedures[] = {
 	PROC(SETACL,		enc_setacl,		dec_setacl),
 	PROC(FS_LOCATIONS,	enc_fs_locations,	dec_fs_locations),
 	PROC(RELEASE_LOCKOWNER,	enc_release_lockowner,	dec_release_lockowner),
+	PROC(SECINFO,		enc_secinfo,		dec_secinfo),
 #if defined(CONFIG_NFS_V4_1)
 	PROC(EXCHANGE_ID,	enc_exchange_id,	dec_exchange_id),
 	PROC(CREATE_SESSION,	enc_create_session,	dec_create_session),
@@ -6267,6 +6543,7 @@ struct rpc_procinfo	nfs4_procedures[] = {
 	PROC(RECLAIM_COMPLETE,	enc_reclaim_complete,	dec_reclaim_complete),
 	PROC(GETDEVICEINFO,	enc_getdeviceinfo,	dec_getdeviceinfo),
 	PROC(LAYOUTGET,		enc_layoutget,		dec_layoutget),
+	PROC(LAYOUTCOMMIT,	enc_layoutcommit,	dec_layoutcommit),
 #endif /* CONFIG_NFS_V4_1 */
 };
 
diff --git a/fs/nfs/pagelist.c b/fs/nfs/pagelist.c
index 23e794410669..c80add6e2213 100644
--- a/fs/nfs/pagelist.c
+++ b/fs/nfs/pagelist.c
@@ -135,14 +135,14 @@ void nfs_clear_page_tag_locked(struct nfs_page *req)
 		nfs_unlock_request(req);
 }
 
-/**
+/*
  * nfs_clear_request - Free up all resources allocated to the request
  * @req:
  *
  * Release page and open context resources associated with a read/write
  * request after it has completed.
  */
-void nfs_clear_request(struct nfs_page *req)
+static void nfs_clear_request(struct nfs_page *req)
 {
 	struct page *page = req->wb_page;
 	struct nfs_open_context *ctx = req->wb_context;
@@ -223,6 +223,7 @@ void nfs_pageio_init(struct nfs_pageio_descriptor *desc,
 	desc->pg_count = 0;
 	desc->pg_bsize = bsize;
 	desc->pg_base = 0;
+	desc->pg_moreio = 0;
 	desc->pg_inode = inode;
 	desc->pg_doio = doio;
 	desc->pg_ioflags = io_flags;
@@ -335,9 +336,11 @@ int nfs_pageio_add_request(struct nfs_pageio_descriptor *desc,
 			   struct nfs_page *req)
 {
 	while (!nfs_pageio_do_add_request(desc, req)) {
+		desc->pg_moreio = 1;
 		nfs_pageio_doio(desc);
 		if (desc->pg_error < 0)
 			return 0;
+		desc->pg_moreio = 0;
 	}
 	return 1;
 }
@@ -395,6 +398,7 @@ int nfs_scan_list(struct nfs_inode *nfsi,
 	pgoff_t idx_end;
 	int found, i;
 	int res;
+	struct list_head *list;
 
 	res = 0;
 	if (npages == 0)
@@ -415,10 +419,10 @@ int nfs_scan_list(struct nfs_inode *nfsi,
 			idx_start = req->wb_index + 1;
 			if (nfs_set_page_tag_locked(req)) {
 				kref_get(&req->wb_kref);
-				nfs_list_remove_request(req);
 				radix_tree_tag_clear(&nfsi->nfs_page_tree,
 						req->wb_index, tag);
-				nfs_list_add_request(req, dst);
+				list = pnfs_choose_commit_list(req, dst);
+				nfs_list_add_request(req, list);
 				res++;
 				if (res == INT_MAX)
 					goto out;
diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c
index f38813a0a295..d9ab97269ce6 100644
--- a/fs/nfs/pnfs.c
+++ b/fs/nfs/pnfs.c
@@ -259,6 +259,7 @@ put_lseg(struct pnfs_layout_segment *lseg)
 		pnfs_free_lseg_list(&free_me);
 	}
 }
+EXPORT_SYMBOL_GPL(put_lseg);
 
 static bool
 should_free_lseg(u32 lseg_iomode, u32 recall_iomode)
@@ -471,6 +472,9 @@ send_layoutget(struct pnfs_layout_hdr *lo,
 	struct nfs_server *server = NFS_SERVER(ino);
 	struct nfs4_layoutget *lgp;
 	struct pnfs_layout_segment *lseg = NULL;
+	struct page **pages = NULL;
+	int i;
+	u32 max_resp_sz, max_pages;
 
 	dprintk("--> %s\n", __func__);
 
@@ -478,6 +482,21 @@ send_layoutget(struct pnfs_layout_hdr *lo,
 	lgp = kzalloc(sizeof(*lgp), GFP_KERNEL);
 	if (lgp == NULL)
 		return NULL;
+
+	/* allocate pages for xdr post processing */
+	max_resp_sz = server->nfs_client->cl_session->fc_attrs.max_resp_sz;
+	max_pages = max_resp_sz >> PAGE_SHIFT;
+
+	pages = kzalloc(max_pages * sizeof(struct page *), GFP_KERNEL);
+	if (!pages)
+		goto out_err_free;
+
+	for (i = 0; i < max_pages; i++) {
+		pages[i] = alloc_page(GFP_KERNEL);
+		if (!pages[i])
+			goto out_err_free;
+	}
+
 	lgp->args.minlength = NFS4_MAX_UINT64;
 	lgp->args.maxcount = PNFS_LAYOUT_MAXSIZE;
 	lgp->args.range.iomode = iomode;
@@ -486,6 +505,8 @@ send_layoutget(struct pnfs_layout_hdr *lo,
 	lgp->args.type = server->pnfs_curr_ld->id;
 	lgp->args.inode = ino;
 	lgp->args.ctx = get_nfs_open_context(ctx);
+	lgp->args.layout.pages = pages;
+	lgp->args.layout.pglen = max_pages * PAGE_SIZE;
 	lgp->lsegpp = &lseg;
 
 	/* Synchronously retrieve layout information from server and
@@ -496,7 +517,26 @@ send_layoutget(struct pnfs_layout_hdr *lo,
 		/* remember that LAYOUTGET failed and suspend trying */
 		set_bit(lo_fail_bit(iomode), &lo->plh_flags);
 	}
+
+	/* free xdr pages */
+	for (i = 0; i < max_pages; i++)
+		__free_page(pages[i]);
+	kfree(pages);
+
 	return lseg;
+
+out_err_free:
+	/* free any allocated xdr pages, lgp as it's not used */
+	if (pages) {
+		for (i = 0; i < max_pages; i++) {
+			if (!pages[i])
+				break;
+			__free_page(pages[i]);
+		}
+		kfree(pages);
+	}
+	kfree(lgp);
+	return NULL;
 }
 
 bool pnfs_roc(struct inode *ino)
@@ -945,3 +985,105 @@ pnfs_try_to_read_data(struct nfs_read_data *rdata,
 	dprintk("%s End (trypnfs:%d)\n", __func__, trypnfs);
 	return trypnfs;
 }
+
+/*
+ * Currently there is only one (whole file) write lseg.
+ */
+static struct pnfs_layout_segment *pnfs_list_write_lseg(struct inode *inode)
+{
+	struct pnfs_layout_segment *lseg, *rv = NULL;
+
+	list_for_each_entry(lseg, &NFS_I(inode)->layout->plh_segs, pls_list)
+		if (lseg->pls_range.iomode == IOMODE_RW)
+			rv = lseg;
+	return rv;
+}
+
+void
+pnfs_set_layoutcommit(struct nfs_write_data *wdata)
+{
+	struct nfs_inode *nfsi = NFS_I(wdata->inode);
+	loff_t end_pos = wdata->args.offset + wdata->res.count;
+
+	spin_lock(&nfsi->vfs_inode.i_lock);
+	if (!test_and_set_bit(NFS_INO_LAYOUTCOMMIT, &nfsi->flags)) {
+		/* references matched in nfs4_layoutcommit_release */
+		get_lseg(wdata->lseg);
+		wdata->lseg->pls_lc_cred =
+			get_rpccred(wdata->args.context->state->owner->so_cred);
+		mark_inode_dirty_sync(wdata->inode);
+		dprintk("%s: Set layoutcommit for inode %lu ",
+			__func__, wdata->inode->i_ino);
+	}
+	if (end_pos > wdata->lseg->pls_end_pos)
+		wdata->lseg->pls_end_pos = end_pos;
+	spin_unlock(&nfsi->vfs_inode.i_lock);
+}
+EXPORT_SYMBOL_GPL(pnfs_set_layoutcommit);
+
+/*
+ * For the LAYOUT4_NFSV4_1_FILES layout type, NFS_DATA_SYNC WRITEs and
+ * NFS_UNSTABLE WRITEs with a COMMIT to data servers must store enough
+ * data to disk to allow the server to recover the data if it crashes.
+ * LAYOUTCOMMIT is only needed when the NFL4_UFLG_COMMIT_THRU_MDS flag
+ * is off, and a COMMIT is sent to a data server, or
+ * if WRITEs to a data server return NFS_DATA_SYNC.
+ */
+int
+pnfs_layoutcommit_inode(struct inode *inode, bool sync)
+{
+	struct nfs4_layoutcommit_data *data;
+	struct nfs_inode *nfsi = NFS_I(inode);
+	struct pnfs_layout_segment *lseg;
+	struct rpc_cred *cred;
+	loff_t end_pos;
+	int status = 0;
+
+	dprintk("--> %s inode %lu\n", __func__, inode->i_ino);
+
+	if (!test_bit(NFS_INO_LAYOUTCOMMIT, &nfsi->flags))
+		return 0;
+
+	/* Note kzalloc ensures data->res.seq_res.sr_slot == NULL */
+	data = kzalloc(sizeof(*data), GFP_NOFS);
+	if (!data) {
+		mark_inode_dirty_sync(inode);
+		status = -ENOMEM;
+		goto out;
+	}
+
+	spin_lock(&inode->i_lock);
+	if (!test_and_clear_bit(NFS_INO_LAYOUTCOMMIT, &nfsi->flags)) {
+		spin_unlock(&inode->i_lock);
+		kfree(data);
+		goto out;
+	}
+	/*
+	 * Currently only one (whole file) write lseg which is referenced
+	 * in pnfs_set_layoutcommit and will be found.
+	 */
+	lseg = pnfs_list_write_lseg(inode);
+
+	end_pos = lseg->pls_end_pos;
+	cred = lseg->pls_lc_cred;
+	lseg->pls_end_pos = 0;
+	lseg->pls_lc_cred = NULL;
+
+	memcpy(&data->args.stateid.data, nfsi->layout->plh_stateid.data,
+		sizeof(nfsi->layout->plh_stateid.data));
+	spin_unlock(&inode->i_lock);
+
+	data->args.inode = inode;
+	data->lseg = lseg;
+	data->cred = cred;
+	nfs_fattr_init(&data->fattr);
+	data->args.bitmask = NFS_SERVER(inode)->cache_consistency_bitmask;
+	data->res.fattr = &data->fattr;
+	data->args.lastbytewritten = end_pos - 1;
+	data->res.server = NFS_SERVER(inode);
+
+	status = nfs4_proc_layoutcommit(data, sync);
+out:
+	dprintk("<-- %s status %d\n", __func__, status);
+	return status;
+}
diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h
index 6380b9405bcd..bc4827202e7a 100644
--- a/fs/nfs/pnfs.h
+++ b/fs/nfs/pnfs.h
@@ -43,6 +43,8 @@ struct pnfs_layout_segment {
 	atomic_t pls_refcount;
 	unsigned long pls_flags;
 	struct pnfs_layout_hdr *pls_layout;
+	struct rpc_cred	*pls_lc_cred; /* LAYOUTCOMMIT credential */
+	loff_t pls_end_pos; /* LAYOUTCOMMIT write end */
 };
 
 enum pnfs_try_status {
@@ -74,6 +76,13 @@ struct pnfs_layoutdriver_type {
 	/* test for nfs page cache coalescing */
 	int (*pg_test)(struct nfs_pageio_descriptor *, struct nfs_page *, struct nfs_page *);
 
+	/* Returns true if layoutdriver wants to divert this request to
+	 * driver's commit routine.
+	 */
+	bool (*mark_pnfs_commit)(struct pnfs_layout_segment *lseg);
+	struct list_head * (*choose_commit_list) (struct nfs_page *req);
+	int (*commit_pagelist)(struct inode *inode, struct list_head *mds_pages, int how);
+
 	/*
 	 * Return PNFS_ATTEMPTED to indicate the layout code has attempted
 	 * I/O, else return PNFS_NOT_ATTEMPTED to fall back to normal NFS
@@ -100,7 +109,6 @@ struct pnfs_device {
 	unsigned int  layout_type;
 	unsigned int  mincount;
 	struct page **pages;
-	void          *area;
 	unsigned int  pgbase;
 	unsigned int  pglen;
 };
@@ -145,7 +153,8 @@ bool pnfs_roc(struct inode *ino);
 void pnfs_roc_release(struct inode *ino);
 void pnfs_roc_set_barrier(struct inode *ino, u32 barrier);
 bool pnfs_roc_drain(struct inode *ino, u32 *barrier);
-
+void pnfs_set_layoutcommit(struct nfs_write_data *wdata);
+int pnfs_layoutcommit_inode(struct inode *inode, bool sync);
 
 static inline int lo_fail_bit(u32 iomode)
 {
@@ -169,6 +178,51 @@ static inline int pnfs_enabled_sb(struct nfs_server *nfss)
 	return nfss->pnfs_curr_ld != NULL;
 }
 
+static inline void
+pnfs_mark_request_commit(struct nfs_page *req, struct pnfs_layout_segment *lseg)
+{
+	if (lseg) {
+		struct pnfs_layoutdriver_type *ld;
+
+		ld = NFS_SERVER(req->wb_page->mapping->host)->pnfs_curr_ld;
+		if (ld->mark_pnfs_commit && ld->mark_pnfs_commit(lseg)) {
+			set_bit(PG_PNFS_COMMIT, &req->wb_flags);
+			req->wb_commit_lseg = get_lseg(lseg);
+		}
+	}
+}
+
+static inline int
+pnfs_commit_list(struct inode *inode, struct list_head *mds_pages, int how)
+{
+	if (!test_and_clear_bit(NFS_INO_PNFS_COMMIT, &NFS_I(inode)->flags))
+		return PNFS_NOT_ATTEMPTED;
+	return NFS_SERVER(inode)->pnfs_curr_ld->commit_pagelist(inode, mds_pages, how);
+}
+
+static inline struct list_head *
+pnfs_choose_commit_list(struct nfs_page *req, struct list_head *mds)
+{
+	struct list_head *rv;
+
+	if (test_and_clear_bit(PG_PNFS_COMMIT, &req->wb_flags)) {
+		struct inode *inode = req->wb_commit_lseg->pls_layout->plh_inode;
+
+		set_bit(NFS_INO_PNFS_COMMIT, &NFS_I(inode)->flags);
+		rv = NFS_SERVER(inode)->pnfs_curr_ld->choose_commit_list(req);
+		/* matched by ref taken when PG_PNFS_COMMIT is set */
+		put_lseg(req->wb_commit_lseg);
+	} else
+		rv = mds;
+	return rv;
+}
+
+static inline void pnfs_clear_request_commit(struct nfs_page *req)
+{
+	if (test_and_clear_bit(PG_PNFS_COMMIT, &req->wb_flags))
+		put_lseg(req->wb_commit_lseg);
+}
+
 #else  /* CONFIG_NFS_V4_1 */
 
 static inline void pnfs_destroy_all_layouts(struct nfs_client *clp)
@@ -252,6 +306,31 @@ pnfs_pageio_init_write(struct nfs_pageio_descriptor *pgio, struct inode *ino)
 	pgio->pg_test = NULL;
 }
 
+static inline void
+pnfs_mark_request_commit(struct nfs_page *req, struct pnfs_layout_segment *lseg)
+{
+}
+
+static inline int
+pnfs_commit_list(struct inode *inode, struct list_head *mds_pages, int how)
+{
+	return PNFS_NOT_ATTEMPTED;
+}
+
+static inline struct list_head *
+pnfs_choose_commit_list(struct nfs_page *req, struct list_head *mds)
+{
+	return mds;
+}
+
+static inline void pnfs_clear_request_commit(struct nfs_page *req)
+{
+}
+
+static inline int pnfs_layoutcommit_inode(struct inode *inode, bool sync)
+{
+	return 0;
+}
 #endif /* CONFIG_NFS_V4_1 */
 
 #endif /* FS_NFS_PNFS_H */
diff --git a/fs/nfs/proc.c b/fs/nfs/proc.c
index b8ec170f2a0f..ac40b8535d7e 100644
--- a/fs/nfs/proc.c
+++ b/fs/nfs/proc.c
@@ -177,7 +177,7 @@ nfs_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr,
 }
 
 static int
-nfs_proc_lookup(struct inode *dir, struct qstr *name,
+nfs_proc_lookup(struct rpc_clnt *clnt, struct inode *dir, struct qstr *name,
 		struct nfs_fh *fhandle, struct nfs_fattr *fattr)
 {
 	struct nfs_diropargs	arg = {
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index 47a3ad63e0d5..af0c6279a4a7 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -59,6 +59,7 @@ struct nfs_write_data *nfs_commitdata_alloc(void)
 	}
 	return p;
 }
+EXPORT_SYMBOL_GPL(nfs_commitdata_alloc);
 
 void nfs_commit_free(struct nfs_write_data *p)
 {
@@ -66,6 +67,7 @@ void nfs_commit_free(struct nfs_write_data *p)
 		kfree(p->pagevec);
 	mempool_free(p, nfs_commit_mempool);
 }
+EXPORT_SYMBOL_GPL(nfs_commit_free);
 
 struct nfs_write_data *nfs_writedata_alloc(unsigned int pagecount)
 {
@@ -179,8 +181,8 @@ static int wb_priority(struct writeback_control *wbc)
 	if (wbc->for_reclaim)
 		return FLUSH_HIGHPRI | FLUSH_STABLE;
 	if (wbc->for_kupdate || wbc->for_background)
-		return FLUSH_LOWPRI;
-	return 0;
+		return FLUSH_LOWPRI | FLUSH_COND_STABLE;
+	return FLUSH_COND_STABLE;
 }
 
 /*
@@ -387,11 +389,8 @@ static int nfs_inode_add_request(struct inode *inode, struct nfs_page *req)
 	spin_lock(&inode->i_lock);
 	error = radix_tree_insert(&nfsi->nfs_page_tree, req->wb_index, req);
 	BUG_ON(error);
-	if (!nfsi->npages) {
-		igrab(inode);
-		if (nfs_have_delegation(inode, FMODE_WRITE))
-			nfsi->change_attr++;
-	}
+	if (!nfsi->npages && nfs_have_delegation(inode, FMODE_WRITE))
+		nfsi->change_attr++;
 	set_bit(PG_MAPPED, &req->wb_flags);
 	SetPagePrivate(req->wb_page);
 	set_page_private(req->wb_page, (unsigned long)req);
@@ -421,11 +420,7 @@ static void nfs_inode_remove_request(struct nfs_page *req)
 	clear_bit(PG_MAPPED, &req->wb_flags);
 	radix_tree_delete(&nfsi->nfs_page_tree, req->wb_index);
 	nfsi->npages--;
-	if (!nfsi->npages) {
-		spin_unlock(&inode->i_lock);
-		iput(inode);
-	} else
-		spin_unlock(&inode->i_lock);
+	spin_unlock(&inode->i_lock);
 	nfs_release_request(req);
 }
 
@@ -441,7 +436,7 @@ nfs_mark_request_dirty(struct nfs_page *req)
  * Add a request to the inode's commit list.
  */
 static void
-nfs_mark_request_commit(struct nfs_page *req)
+nfs_mark_request_commit(struct nfs_page *req, struct pnfs_layout_segment *lseg)
 {
 	struct inode *inode = req->wb_context->path.dentry->d_inode;
 	struct nfs_inode *nfsi = NFS_I(inode);
@@ -453,6 +448,7 @@ nfs_mark_request_commit(struct nfs_page *req)
 			NFS_PAGE_TAG_COMMIT);
 	nfsi->ncommit++;
 	spin_unlock(&inode->i_lock);
+	pnfs_mark_request_commit(req, lseg);
 	inc_zone_page_state(req->wb_page, NR_UNSTABLE_NFS);
 	inc_bdi_stat(req->wb_page->mapping->backing_dev_info, BDI_RECLAIMABLE);
 	__mark_inode_dirty(inode, I_DIRTY_DATASYNC);
@@ -474,14 +470,18 @@ nfs_clear_request_commit(struct nfs_page *req)
 static inline
 int nfs_write_need_commit(struct nfs_write_data *data)
 {
-	return data->verf.committed != NFS_FILE_SYNC;
+	if (data->verf.committed == NFS_DATA_SYNC)
+		return data->lseg == NULL;
+	else
+		return data->verf.committed != NFS_FILE_SYNC;
 }
 
 static inline
-int nfs_reschedule_unstable_write(struct nfs_page *req)
+int nfs_reschedule_unstable_write(struct nfs_page *req,
+				  struct nfs_write_data *data)
 {
 	if (test_and_clear_bit(PG_NEED_COMMIT, &req->wb_flags)) {
-		nfs_mark_request_commit(req);
+		nfs_mark_request_commit(req, data->lseg);
 		return 1;
 	}
 	if (test_and_clear_bit(PG_NEED_RESCHED, &req->wb_flags)) {
@@ -492,7 +492,7 @@ int nfs_reschedule_unstable_write(struct nfs_page *req)
 }
 #else
 static inline void
-nfs_mark_request_commit(struct nfs_page *req)
+nfs_mark_request_commit(struct nfs_page *req, struct pnfs_layout_segment *lseg)
 {
 }
 
@@ -509,7 +509,8 @@ int nfs_write_need_commit(struct nfs_write_data *data)
 }
 
 static inline
-int nfs_reschedule_unstable_write(struct nfs_page *req)
+int nfs_reschedule_unstable_write(struct nfs_page *req,
+				  struct nfs_write_data *data)
 {
 	return 0;
 }
@@ -612,9 +613,11 @@ static struct nfs_page *nfs_try_to_update_request(struct inode *inode,
 	}
 
 	if (nfs_clear_request_commit(req) &&
-			radix_tree_tag_clear(&NFS_I(inode)->nfs_page_tree,
-				req->wb_index, NFS_PAGE_TAG_COMMIT) != NULL)
+	    radix_tree_tag_clear(&NFS_I(inode)->nfs_page_tree,
+				 req->wb_index, NFS_PAGE_TAG_COMMIT) != NULL) {
 		NFS_I(inode)->ncommit--;
+		pnfs_clear_request_commit(req);
+	}
 
 	/* Okay, the request matches. Update the region */
 	if (offset < req->wb_offset) {
@@ -762,11 +765,12 @@ int nfs_updatepage(struct file *file, struct page *page,
 	return status;
 }
 
-static void nfs_writepage_release(struct nfs_page *req)
+static void nfs_writepage_release(struct nfs_page *req,
+				  struct nfs_write_data *data)
 {
 	struct page *page = req->wb_page;
 
-	if (PageError(req->wb_page) || !nfs_reschedule_unstable_write(req))
+	if (PageError(req->wb_page) || !nfs_reschedule_unstable_write(req, data))
 		nfs_inode_remove_request(req);
 	nfs_clear_page_tag_locked(req);
 	nfs_end_page_writeback(page);
@@ -863,7 +867,7 @@ static int nfs_write_rpcsetup(struct nfs_page *req,
 	data->args.context = get_nfs_open_context(req->wb_context);
 	data->args.lock_context = req->wb_lock_context;
 	data->args.stable  = NFS_UNSTABLE;
-	if (how & FLUSH_STABLE) {
+	if (how & (FLUSH_STABLE | FLUSH_COND_STABLE)) {
 		data->args.stable = NFS_DATA_SYNC;
 		if (!nfs_need_commit(NFS_I(inode)))
 			data->args.stable = NFS_FILE_SYNC;
@@ -912,6 +916,12 @@ static int nfs_flush_multi(struct nfs_pageio_descriptor *desc)
 
 	nfs_list_remove_request(req);
 
+	if ((desc->pg_ioflags & FLUSH_COND_STABLE) &&
+	    (desc->pg_moreio || NFS_I(desc->pg_inode)->ncommit ||
+	     desc->pg_count > wsize))
+		desc->pg_ioflags &= ~FLUSH_COND_STABLE;
+
+
 	nbytes = desc->pg_count;
 	do {
 		size_t len = min(nbytes, wsize);
@@ -1002,6 +1012,10 @@ static int nfs_flush_one(struct nfs_pageio_descriptor *desc)
 	if ((!lseg) && list_is_singular(&data->pages))
 		lseg = pnfs_update_layout(desc->pg_inode, req->wb_context, IOMODE_RW);
 
+	if ((desc->pg_ioflags & FLUSH_COND_STABLE) &&
+	    (desc->pg_moreio || NFS_I(desc->pg_inode)->ncommit))
+		desc->pg_ioflags &= ~FLUSH_COND_STABLE;
+
 	/* Set up the argument struct */
 	ret = nfs_write_rpcsetup(req, data, &nfs_write_full_ops, desc->pg_count, 0, lseg, desc->pg_ioflags);
 out:
@@ -1074,7 +1088,7 @@ static void nfs_writeback_release_partial(void *calldata)
 
 out:
 	if (atomic_dec_and_test(&req->wb_complete))
-		nfs_writepage_release(req);
+		nfs_writepage_release(req, data);
 	nfs_writedata_release(calldata);
 }
 
@@ -1141,7 +1155,7 @@ static void nfs_writeback_release_full(void *calldata)
 
 		if (nfs_write_need_commit(data)) {
 			memcpy(&req->wb_verf, &data->verf, sizeof(req->wb_verf));
-			nfs_mark_request_commit(req);
+			nfs_mark_request_commit(req, data->lseg);
 			dprintk(" marked for commit\n");
 			goto next;
 		}
@@ -1251,57 +1265,82 @@ void nfs_writeback_done(struct rpc_task *task, struct nfs_write_data *data)
 #if defined(CONFIG_NFS_V3) || defined(CONFIG_NFS_V4)
 static int nfs_commit_set_lock(struct nfs_inode *nfsi, int may_wait)
 {
+	int ret;
+
 	if (!test_and_set_bit(NFS_INO_COMMIT, &nfsi->flags))
 		return 1;
-	if (may_wait && !out_of_line_wait_on_bit_lock(&nfsi->flags,
-				NFS_INO_COMMIT, nfs_wait_bit_killable,
-				TASK_KILLABLE))
-		return 1;
-	return 0;
+	if (!may_wait)
+		return 0;
+	ret = out_of_line_wait_on_bit_lock(&nfsi->flags,
+				NFS_INO_COMMIT,
+				nfs_wait_bit_killable,
+				TASK_KILLABLE);
+	return (ret < 0) ? ret : 1;
 }
 
-static void nfs_commit_clear_lock(struct nfs_inode *nfsi)
+void nfs_commit_clear_lock(struct nfs_inode *nfsi)
 {
 	clear_bit(NFS_INO_COMMIT, &nfsi->flags);
 	smp_mb__after_clear_bit();
 	wake_up_bit(&nfsi->flags, NFS_INO_COMMIT);
 }
+EXPORT_SYMBOL_GPL(nfs_commit_clear_lock);
 
-
-static void nfs_commitdata_release(void *data)
+void nfs_commitdata_release(void *data)
 {
 	struct nfs_write_data *wdata = data;
 
+	put_lseg(wdata->lseg);
 	put_nfs_open_context(wdata->args.context);
 	nfs_commit_free(wdata);
 }
+EXPORT_SYMBOL_GPL(nfs_commitdata_release);
 
-/*
- * Set up the argument/result storage required for the RPC call.
- */
-static int nfs_commit_rpcsetup(struct list_head *head,
-		struct nfs_write_data *data,
-		int how)
+int nfs_initiate_commit(struct nfs_write_data *data, struct rpc_clnt *clnt,
+			const struct rpc_call_ops *call_ops,
+			int how)
 {
-	struct nfs_page *first = nfs_list_entry(head->next);
-	struct inode *inode = first->wb_context->path.dentry->d_inode;
-	int priority = flush_task_priority(how);
 	struct rpc_task *task;
+	int priority = flush_task_priority(how);
 	struct rpc_message msg = {
 		.rpc_argp = &data->args,
 		.rpc_resp = &data->res,
-		.rpc_cred = first->wb_context->cred,
+		.rpc_cred = data->cred,
 	};
 	struct rpc_task_setup task_setup_data = {
 		.task = &data->task,
-		.rpc_client = NFS_CLIENT(inode),
+		.rpc_client = clnt,
 		.rpc_message = &msg,
-		.callback_ops = &nfs_commit_ops,
+		.callback_ops = call_ops,
 		.callback_data = data,
 		.workqueue = nfsiod_workqueue,
 		.flags = RPC_TASK_ASYNC,
 		.priority = priority,
 	};
+	/* Set up the initial task struct.  */
+	NFS_PROTO(data->inode)->commit_setup(data, &msg);
+
+	dprintk("NFS: %5u initiated commit call\n", data->task.tk_pid);
+
+	task = rpc_run_task(&task_setup_data);
+	if (IS_ERR(task))
+		return PTR_ERR(task);
+	if (how & FLUSH_SYNC)
+		rpc_wait_for_completion_task(task);
+	rpc_put_task(task);
+	return 0;
+}
+EXPORT_SYMBOL_GPL(nfs_initiate_commit);
+
+/*
+ * Set up the argument/result storage required for the RPC call.
+ */
+void nfs_init_commit(struct nfs_write_data *data,
+			    struct list_head *head,
+			    struct pnfs_layout_segment *lseg)
+{
+	struct nfs_page *first = nfs_list_entry(head->next);
+	struct inode *inode = first->wb_context->path.dentry->d_inode;
 
 	/* Set up the RPC argument and reply structs
 	 * NB: take care not to mess about with data->commit et al. */
@@ -1309,7 +1348,9 @@ static int nfs_commit_rpcsetup(struct list_head *head,
 	list_splice_init(head, &data->pages);
 
 	data->inode	  = inode;
-	data->cred	  = msg.rpc_cred;
+	data->cred	  = first->wb_context->cred;
+	data->lseg	  = lseg; /* reference transferred */
+	data->mds_ops     = &nfs_commit_ops;
 
 	data->args.fh     = NFS_FH(data->inode);
 	/* Note: we always request a commit of the entire inode */
@@ -1320,20 +1361,25 @@ static int nfs_commit_rpcsetup(struct list_head *head,
 	data->res.fattr   = &data->fattr;
 	data->res.verf    = &data->verf;
 	nfs_fattr_init(&data->fattr);
+}
+EXPORT_SYMBOL_GPL(nfs_init_commit);
 
-	/* Set up the initial task struct.  */
-	NFS_PROTO(inode)->commit_setup(data, &msg);
-
-	dprintk("NFS: %5u initiated commit call\n", data->task.tk_pid);
+void nfs_retry_commit(struct list_head *page_list,
+		      struct pnfs_layout_segment *lseg)
+{
+	struct nfs_page *req;
 
-	task = rpc_run_task(&task_setup_data);
-	if (IS_ERR(task))
-		return PTR_ERR(task);
-	if (how & FLUSH_SYNC)
-		rpc_wait_for_completion_task(task);
-	rpc_put_task(task);
-	return 0;
+	while (!list_empty(page_list)) {
+		req = nfs_list_entry(page_list->next);
+		nfs_list_remove_request(req);
+		nfs_mark_request_commit(req, lseg);
+		dec_zone_page_state(req->wb_page, NR_UNSTABLE_NFS);
+		dec_bdi_stat(req->wb_page->mapping->backing_dev_info,
+			     BDI_RECLAIMABLE);
+		nfs_clear_page_tag_locked(req);
+	}
 }
+EXPORT_SYMBOL_GPL(nfs_retry_commit);
 
 /*
  * Commit dirty pages
@@ -1342,7 +1388,6 @@ static int
 nfs_commit_list(struct inode *inode, struct list_head *head, int how)
 {
 	struct nfs_write_data	*data;
-	struct nfs_page         *req;
 
 	data = nfs_commitdata_alloc();
 
@@ -1350,17 +1395,10 @@ nfs_commit_list(struct inode *inode, struct list_head *head, int how)
 		goto out_bad;
 
 	/* Set up the argument struct */
-	return nfs_commit_rpcsetup(head, data, how);
+	nfs_init_commit(data, head, NULL);
+	return nfs_initiate_commit(data, NFS_CLIENT(inode), data->mds_ops, how);
  out_bad:
-	while (!list_empty(head)) {
-		req = nfs_list_entry(head->next);
-		nfs_list_remove_request(req);
-		nfs_mark_request_commit(req);
-		dec_zone_page_state(req->wb_page, NR_UNSTABLE_NFS);
-		dec_bdi_stat(req->wb_page->mapping->backing_dev_info,
-				BDI_RECLAIMABLE);
-		nfs_clear_page_tag_locked(req);
-	}
+	nfs_retry_commit(head, NULL);
 	nfs_commit_clear_lock(NFS_I(inode));
 	return -ENOMEM;
 }
@@ -1380,10 +1418,9 @@ static void nfs_commit_done(struct rpc_task *task, void *calldata)
 		return;
 }
 
-static void nfs_commit_release(void *calldata)
+void nfs_commit_release_pages(struct nfs_write_data *data)
 {
-	struct nfs_write_data	*data = calldata;
-	struct nfs_page		*req;
+	struct nfs_page	*req;
 	int status = data->task.tk_status;
 
 	while (!list_empty(&data->pages)) {
@@ -1417,6 +1454,14 @@ static void nfs_commit_release(void *calldata)
 	next:
 		nfs_clear_page_tag_locked(req);
 	}
+}
+EXPORT_SYMBOL_GPL(nfs_commit_release_pages);
+
+static void nfs_commit_release(void *calldata)
+{
+	struct nfs_write_data *data = calldata;
+
+	nfs_commit_release_pages(data);
 	nfs_commit_clear_lock(NFS_I(data->inode));
 	nfs_commitdata_release(calldata);
 }
@@ -1433,23 +1478,30 @@ int nfs_commit_inode(struct inode *inode, int how)
 {
 	LIST_HEAD(head);
 	int may_wait = how & FLUSH_SYNC;
-	int res = 0;
+	int res;
 
-	if (!nfs_commit_set_lock(NFS_I(inode), may_wait))
+	res = nfs_commit_set_lock(NFS_I(inode), may_wait);
+	if (res <= 0)
 		goto out_mark_dirty;
 	spin_lock(&inode->i_lock);
 	res = nfs_scan_commit(inode, &head, 0, 0);
 	spin_unlock(&inode->i_lock);
 	if (res) {
-		int error = nfs_commit_list(inode, &head, how);
+		int error;
+
+		error = pnfs_commit_list(inode, &head, how);
+		if (error == PNFS_NOT_ATTEMPTED)
+			error = nfs_commit_list(inode, &head, how);
 		if (error < 0)
 			return error;
-		if (may_wait)
-			wait_on_bit(&NFS_I(inode)->flags, NFS_INO_COMMIT,
-					nfs_wait_bit_killable,
-					TASK_KILLABLE);
-		else
+		if (!may_wait)
 			goto out_mark_dirty;
+		error = wait_on_bit(&NFS_I(inode)->flags,
+				NFS_INO_COMMIT,
+				nfs_wait_bit_killable,
+				TASK_KILLABLE);
+		if (error < 0)
+			return error;
 	} else
 		nfs_commit_clear_lock(NFS_I(inode));
 	return res;
@@ -1503,7 +1555,22 @@ static int nfs_commit_unstable_pages(struct inode *inode, struct writeback_contr
 
 int nfs_write_inode(struct inode *inode, struct writeback_control *wbc)
 {
-	return nfs_commit_unstable_pages(inode, wbc);
+	int ret;
+
+	ret = nfs_commit_unstable_pages(inode, wbc);
+	if (ret >= 0 && test_bit(NFS_INO_LAYOUTCOMMIT, &NFS_I(inode)->flags)) {
+		int status;
+		bool sync = true;
+
+		if (wbc->sync_mode == WB_SYNC_NONE || wbc->nonblocking ||
+		    wbc->for_background)
+			sync = false;
+
+		status = pnfs_layoutcommit_inode(inode, sync);
+		if (status < 0)
+			return status;
+	}
+	return ret;
 }
 
 /*
diff --git a/fs/nfs_common/nfsacl.c b/fs/nfs_common/nfsacl.c
index 84c27d69d421..6940439bd609 100644
--- a/fs/nfs_common/nfsacl.c
+++ b/fs/nfs_common/nfsacl.c
@@ -117,7 +117,6 @@ int nfsacl_encode(struct xdr_buf *buf, unsigned int base, struct inode *inode,
 		 * invoked in contexts where a memory allocation failure is
 		 * fatal.  Fortunately this fake ACL is small enough to
 		 * construct on the stack. */
-		memset(acl2, 0, sizeof(acl2));
 		posix_acl_init(acl2, 4);
 
 		/* Insert entries in canonical order: other orders seem
@@ -174,7 +173,7 @@ xdr_nfsace_decode(struct xdr_array2_desc *desc, void *elem)
 				return -EINVAL;
 			break;
 		case ACL_MASK:
-			/* Solaris sometimes sets additonal bits in the mask */
+			/* Solaris sometimes sets additional bits in the mask */
 			entry->e_perm &= S_IRWXO;
 			break;
 		default:
diff --git a/fs/nfsd/nfs3xdr.c b/fs/nfsd/nfs3xdr.c
index 7e84a852cdae..ad48faca20fc 100644
--- a/fs/nfsd/nfs3xdr.c
+++ b/fs/nfsd/nfs3xdr.c
@@ -702,7 +702,7 @@ nfs3svc_encode_readres(struct svc_rqst *rqstp, __be32 *p,
 		*p++ = htonl(resp->eof);
 		*p++ = htonl(resp->count);	/* xdr opaque count */
 		xdr_ressize_check(rqstp, p);
-		/* now update rqstp->rq_res to reflect data aswell */
+		/* now update rqstp->rq_res to reflect data as well */
 		rqstp->rq_res.page_len = resp->count;
 		if (resp->count & 3) {
 			/* need to pad the tail */
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index fbde6f79922e..4b36ec3eb8ea 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -3055,7 +3055,7 @@ check_special_stateids(svc_fh *current_fh, stateid_t *stateid, int flags)
 	if (ONE_STATEID(stateid) && (flags & RD_STATE))
 		return nfs_ok;
 	else if (locks_in_grace()) {
-		/* Answer in remaining cases depends on existance of
+		/* Answer in remaining cases depends on existence of
 		 * conflicting state; so we must wait out the grace period. */
 		return nfserr_grace;
 	} else if (flags & WR_STATE)
@@ -3675,7 +3675,7 @@ find_lockstateowner_str(struct inode *inode, clientid_t *clid,
 /*
  * Alloc a lock owner structure.
  * Called in nfsd4_lock - therefore, OPEN and OPEN_CONFIRM (if needed) has 
- * occured. 
+ * occurred. 
  *
  * strhashval = lock_ownerstr_hashval 
  */
diff --git a/fs/nfsd/nfsxdr.c b/fs/nfsd/nfsxdr.c
index 4ce005dbf3e6..65ec595e2226 100644
--- a/fs/nfsd/nfsxdr.c
+++ b/fs/nfsd/nfsxdr.c
@@ -451,7 +451,7 @@ nfssvc_encode_readres(struct svc_rqst *rqstp, __be32 *p,
 	*p++ = htonl(resp->count);
 	xdr_ressize_check(rqstp, p);
 
-	/* now update rqstp->rq_res to reflect data aswell */
+	/* now update rqstp->rq_res to reflect data as well */
 	rqstp->rq_res.page_len = resp->count;
 	if (resp->count & 3) {
 		/* need to pad the tail */
diff --git a/fs/nilfs2/file.c b/fs/nilfs2/file.c
index 93589fccdd97..397e73258631 100644
--- a/fs/nilfs2/file.c
+++ b/fs/nilfs2/file.c
@@ -72,10 +72,9 @@ static int nilfs_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
 	/*
 	 * check to see if the page is mapped already (no holes)
 	 */
-	if (PageMappedToDisk(page)) {
-		unlock_page(page);
+	if (PageMappedToDisk(page))
 		goto mapped;
-	}
+
 	if (page_has_buffers(page)) {
 		struct buffer_head *bh, *head;
 		int fully_mapped = 1;
@@ -90,7 +89,6 @@ static int nilfs_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
 
 		if (fully_mapped) {
 			SetPageMappedToDisk(page);
-			unlock_page(page);
 			goto mapped;
 		}
 	}
@@ -105,16 +103,17 @@ static int nilfs_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
 		return VM_FAULT_SIGBUS;
 
 	ret = block_page_mkwrite(vma, vmf, nilfs_get_block);
-	if (unlikely(ret)) {
+	if (ret != VM_FAULT_LOCKED) {
 		nilfs_transaction_abort(inode->i_sb);
 		return ret;
 	}
+	nilfs_set_file_dirty(inode, 1 << (PAGE_SHIFT - inode->i_blkbits));
 	nilfs_transaction_commit(inode->i_sb);
 
  mapped:
 	SetPageChecked(page);
 	wait_on_page_writeback(page);
-	return 0;
+	return VM_FAULT_LOCKED;
 }
 
 static const struct vm_operations_struct nilfs_file_vm_ops = {
diff --git a/fs/nilfs2/nilfs.h b/fs/nilfs2/nilfs.h
index 856e8e4e0b74..a8dd344303cb 100644
--- a/fs/nilfs2/nilfs.h
+++ b/fs/nilfs2/nilfs.h
@@ -114,19 +114,19 @@ enum {
  * Macros to check inode numbers
  */
 #define NILFS_MDT_INO_BITS   \
-  ((unsigned int)(1 << NILFS_DAT_INO | 1 << NILFS_CPFILE_INO |		\
-		  1 << NILFS_SUFILE_INO | 1 << NILFS_IFILE_INO |	\
-		  1 << NILFS_ATIME_INO | 1 << NILFS_SKETCH_INO))
+	((unsigned int)(1 << NILFS_DAT_INO | 1 << NILFS_CPFILE_INO |	\
+			1 << NILFS_SUFILE_INO | 1 << NILFS_IFILE_INO |	\
+			1 << NILFS_ATIME_INO | 1 << NILFS_SKETCH_INO))
 
 #define NILFS_SYS_INO_BITS   \
-  ((unsigned int)(1 << NILFS_ROOT_INO) | NILFS_MDT_INO_BITS)
+	((unsigned int)(1 << NILFS_ROOT_INO) | NILFS_MDT_INO_BITS)
 
 #define NILFS_FIRST_INO(sb) (((struct the_nilfs *)sb->s_fs_info)->ns_first_ino)
 
 #define NILFS_MDT_INODE(sb, ino) \
-  ((ino) < NILFS_FIRST_INO(sb) && (NILFS_MDT_INO_BITS & (1 << (ino))))
+	((ino) < NILFS_FIRST_INO(sb) && (NILFS_MDT_INO_BITS & (1 << (ino))))
 #define NILFS_VALID_INODE(sb, ino) \
-  ((ino) >= NILFS_FIRST_INO(sb) || (NILFS_SYS_INO_BITS & (1 << (ino))))
+	((ino) >= NILFS_FIRST_INO(sb) || (NILFS_SYS_INO_BITS & (1 << (ino))))
 
 /**
  * struct nilfs_transaction_info: context information for synchronization
@@ -285,7 +285,7 @@ extern void nilfs_destroy_inode(struct inode *);
 extern void nilfs_error(struct super_block *, const char *, const char *, ...)
 	__attribute__ ((format (printf, 3, 4)));
 extern void nilfs_warning(struct super_block *, const char *, const char *, ...)
-       __attribute__ ((format (printf, 3, 4)));
+	__attribute__ ((format (printf, 3, 4)));
 extern struct nilfs_super_block *
 nilfs_read_super_block(struct super_block *, u64, int, struct buffer_head **);
 extern int nilfs_store_magic_and_option(struct super_block *,
diff --git a/fs/nilfs2/page.c b/fs/nilfs2/page.c
index 4d2a1ee0eb47..1168059c7efd 100644
--- a/fs/nilfs2/page.c
+++ b/fs/nilfs2/page.c
@@ -500,7 +500,7 @@ void nilfs_mapping_init(struct address_space *mapping,
 	mapping_set_gfp_mask(mapping, GFP_NOFS);
 	mapping->assoc_mapping = NULL;
 	mapping->backing_dev_info = bdi;
-	mapping->a_ops = NULL;
+	mapping->a_ops = &empty_aops;
 }
 
 /*
diff --git a/fs/notify/fanotify/fanotify_user.c b/fs/notify/fanotify/fanotify_user.c
index 6b1305dc26c0..9fde1c00a296 100644
--- a/fs/notify/fanotify/fanotify_user.c
+++ b/fs/notify/fanotify/fanotify_user.c
@@ -164,7 +164,7 @@ static int process_access_response(struct fsnotify_group *group,
 		 fd, response);
 	/*
 	 * make sure the response is valid, if invalid we do nothing and either
-	 * userspace can send a valid responce or we will clean it up after the
+	 * userspace can send a valid response or we will clean it up after the
 	 * timeout
 	 */
 	switch (response) {
diff --git a/fs/notify/inode_mark.c b/fs/notify/inode_mark.c
index 4c29fcf557d1..07ea8d3e6ea2 100644
--- a/fs/notify/inode_mark.c
+++ b/fs/notify/inode_mark.c
@@ -22,13 +22,14 @@
 #include <linux/module.h>
 #include <linux/mutex.h>
 #include <linux/spinlock.h>
-#include <linux/writeback.h> /* for inode_lock */
 
 #include <asm/atomic.h>
 
 #include <linux/fsnotify_backend.h>
 #include "fsnotify.h"
 
+#include "../internal.h"
+
 /*
  * Recalculate the mask of events relevant to a given inode locked.
  */
@@ -237,15 +238,14 @@ out:
  * fsnotify_unmount_inodes - an sb is unmounting.  handle any watched inodes.
  * @list: list of inodes being unmounted (sb->s_inodes)
  *
- * Called with inode_lock held, protecting the unmounting super block's list
- * of inodes, and with iprune_mutex held, keeping shrink_icache_memory() at bay.
- * We temporarily drop inode_lock, however, and CAN block.
+ * Called during unmount with no locks held, so needs to be safe against
+ * concurrent modifiers. We temporarily drop inode_sb_list_lock and CAN block.
  */
 void fsnotify_unmount_inodes(struct list_head *list)
 {
 	struct inode *inode, *next_i, *need_iput = NULL;
 
-	spin_lock(&inode_lock);
+	spin_lock(&inode_sb_list_lock);
 	list_for_each_entry_safe(inode, next_i, list, i_sb_list) {
 		struct inode *need_iput_tmp;
 
@@ -254,8 +254,11 @@ void fsnotify_unmount_inodes(struct list_head *list)
 		 * I_WILL_FREE, or I_NEW which is fine because by that point
 		 * the inode cannot have any associated watches.
 		 */
-		if (inode->i_state & (I_FREEING|I_WILL_FREE|I_NEW))
+		spin_lock(&inode->i_lock);
+		if (inode->i_state & (I_FREEING|I_WILL_FREE|I_NEW)) {
+			spin_unlock(&inode->i_lock);
 			continue;
+		}
 
 		/*
 		 * If i_count is zero, the inode cannot have any watches and
@@ -263,8 +266,10 @@ void fsnotify_unmount_inodes(struct list_head *list)
 		 * evict all inodes with zero i_count from icache which is
 		 * unnecessarily violent and may in fact be illegal to do.
 		 */
-		if (!atomic_read(&inode->i_count))
+		if (!atomic_read(&inode->i_count)) {
+			spin_unlock(&inode->i_lock);
 			continue;
+		}
 
 		need_iput_tmp = need_iput;
 		need_iput = NULL;
@@ -274,22 +279,25 @@ void fsnotify_unmount_inodes(struct list_head *list)
 			__iget(inode);
 		else
 			need_iput_tmp = NULL;
+		spin_unlock(&inode->i_lock);
 
 		/* In case the dropping of a reference would nuke next_i. */
 		if ((&next_i->i_sb_list != list) &&
-		    atomic_read(&next_i->i_count) &&
-		    !(next_i->i_state & (I_FREEING | I_WILL_FREE))) {
-			__iget(next_i);
-			need_iput = next_i;
+		    atomic_read(&next_i->i_count)) {
+			spin_lock(&next_i->i_lock);
+			if (!(next_i->i_state & (I_FREEING | I_WILL_FREE))) {
+				__iget(next_i);
+				need_iput = next_i;
+			}
+			spin_unlock(&next_i->i_lock);
 		}
 
 		/*
-		 * We can safely drop inode_lock here because we hold
+		 * We can safely drop inode_sb_list_lock here because we hold
 		 * references on both inode and next_i.  Also no new inodes
-		 * will be added since the umount has begun.  Finally,
-		 * iprune_mutex keeps shrink_icache_memory() away.
+		 * will be added since the umount has begun.
 		 */
-		spin_unlock(&inode_lock);
+		spin_unlock(&inode_sb_list_lock);
 
 		if (need_iput_tmp)
 			iput(need_iput_tmp);
@@ -301,7 +309,7 @@ void fsnotify_unmount_inodes(struct list_head *list)
 
 		iput(inode);
 
-		spin_lock(&inode_lock);
+		spin_lock(&inode_sb_list_lock);
 	}
-	spin_unlock(&inode_lock);
+	spin_unlock(&inode_sb_list_lock);
 }
diff --git a/fs/notify/inotify/inotify_fsnotify.c b/fs/notify/inotify/inotify_fsnotify.c
index a91b69a6a291..e3cbd746f64a 100644
--- a/fs/notify/inotify/inotify_fsnotify.c
+++ b/fs/notify/inotify/inotify_fsnotify.c
@@ -194,10 +194,11 @@ static int idr_callback(int id, void *p, void *data)
 
 static void inotify_free_group_priv(struct fsnotify_group *group)
 {
-	/* ideally the idr is empty and we won't hit the BUG in teh callback */
+	/* ideally the idr is empty and we won't hit the BUG in the callback */
 	idr_for_each(&group->inotify_data.idr, idr_callback, group);
 	idr_remove_all(&group->inotify_data.idr);
 	idr_destroy(&group->inotify_data.idr);
+	atomic_dec(&group->inotify_data.user->inotify_devs);
 	free_uid(group->inotify_data.user);
 }
 
diff --git a/fs/notify/inotify/inotify_user.c b/fs/notify/inotify/inotify_user.c
index bd46e7c8a0ef..8445fbc8985c 100644
--- a/fs/notify/inotify/inotify_user.c
+++ b/fs/notify/inotify/inotify_user.c
@@ -290,7 +290,6 @@ static int inotify_fasync(int fd, struct file *file, int on)
 static int inotify_release(struct inode *ignored, struct file *file)
 {
 	struct fsnotify_group *group = file->private_data;
-	struct user_struct *user = group->inotify_data.user;
 
 	pr_debug("%s: group=%p\n", __func__, group);
 
@@ -299,8 +298,6 @@ static int inotify_release(struct inode *ignored, struct file *file)
 	/* free this group, matching get was inotify_init->fsnotify_obtain_group */
 	fsnotify_put_group(group);
 
-	atomic_dec(&user->inotify_devs);
-
 	return 0;
 }
 
@@ -697,7 +694,7 @@ retry:
 	return ret;
 }
 
-static struct fsnotify_group *inotify_new_group(struct user_struct *user, unsigned int max_events)
+static struct fsnotify_group *inotify_new_group(unsigned int max_events)
 {
 	struct fsnotify_group *group;
 
@@ -710,8 +707,14 @@ static struct fsnotify_group *inotify_new_group(struct user_struct *user, unsign
 	spin_lock_init(&group->inotify_data.idr_lock);
 	idr_init(&group->inotify_data.idr);
 	group->inotify_data.last_wd = 0;
-	group->inotify_data.user = user;
 	group->inotify_data.fa = NULL;
+	group->inotify_data.user = get_current_user();
+
+	if (atomic_inc_return(&group->inotify_data.user->inotify_devs) >
+	    inotify_max_user_instances) {
+		fsnotify_put_group(group);
+		return ERR_PTR(-EMFILE);
+	}
 
 	return group;
 }
@@ -721,7 +724,6 @@ static struct fsnotify_group *inotify_new_group(struct user_struct *user, unsign
 SYSCALL_DEFINE1(inotify_init1, int, flags)
 {
 	struct fsnotify_group *group;
-	struct user_struct *user;
 	int ret;
 
 	/* Check the IN_* constants for consistency.  */
@@ -731,31 +733,16 @@ SYSCALL_DEFINE1(inotify_init1, int, flags)
 	if (flags & ~(IN_CLOEXEC | IN_NONBLOCK))
 		return -EINVAL;
 
-	user = get_current_user();
-	if (unlikely(atomic_read(&user->inotify_devs) >=
-			inotify_max_user_instances)) {
-		ret = -EMFILE;
-		goto out_free_uid;
-	}
-
 	/* fsnotify_obtain_group took a reference to group, we put this when we kill the file in the end */
-	group = inotify_new_group(user, inotify_max_queued_events);
-	if (IS_ERR(group)) {
-		ret = PTR_ERR(group);
-		goto out_free_uid;
-	}
-
-	atomic_inc(&user->inotify_devs);
+	group = inotify_new_group(inotify_max_queued_events);
+	if (IS_ERR(group))
+		return PTR_ERR(group);
 
 	ret = anon_inode_getfd("inotify", &inotify_fops, group,
 				  O_RDONLY | flags);
-	if (ret >= 0)
-		return ret;
+	if (ret < 0)
+		fsnotify_put_group(group);
 
-	fsnotify_put_group(group);
-	atomic_dec(&user->inotify_devs);
-out_free_uid:
-	free_uid(user);
 	return ret;
 }
 
diff --git a/fs/notify/mark.c b/fs/notify/mark.c
index 325185e514bb..252ab1f6452b 100644
--- a/fs/notify/mark.c
+++ b/fs/notify/mark.c
@@ -24,7 +24,7 @@
  * referencing this object.  The object typically will live inside the kernel
  * with a refcnt of 2, one for each list it is on (i_list, g_list).  Any task
  * which can find this object holding the appropriete locks, can take a reference
- * and the object itself is guarenteed to survive until the reference is dropped.
+ * and the object itself is guaranteed to survive until the reference is dropped.
  *
  * LOCKING:
  * There are 3 spinlocks involved with fsnotify inode marks and they MUST
@@ -91,7 +91,6 @@
 #include <linux/slab.h>
 #include <linux/spinlock.h>
 #include <linux/srcu.h>
-#include <linux/writeback.h> /* for inode_lock */
 
 #include <asm/atomic.h>
 
diff --git a/fs/notify/vfsmount_mark.c b/fs/notify/vfsmount_mark.c
index 85eebff6d0d7..e86577d6c5c3 100644
--- a/fs/notify/vfsmount_mark.c
+++ b/fs/notify/vfsmount_mark.c
@@ -23,7 +23,6 @@
 #include <linux/mount.h>
 #include <linux/mutex.h>
 #include <linux/spinlock.h>
-#include <linux/writeback.h> /* for inode_lock */
 
 #include <asm/atomic.h>
 
diff --git a/fs/ntfs/attrib.c b/fs/ntfs/attrib.c
index f5094ee224c1..f14fde2b03d6 100644
--- a/fs/ntfs/attrib.c
+++ b/fs/ntfs/attrib.c
@@ -197,7 +197,7 @@ err_out:
 	} else if (ctx_needs_reset) {
 		/*
 		 * If there is no attribute list, restoring the search context
-		 * is acomplished simply by copying the saved context back over
+		 * is accomplished simply by copying the saved context back over
 		 * the caller supplied context.  If there is an attribute list,
 		 * things are more complicated as we need to deal with mapping
 		 * of mft records and resulting potential changes in pointers.
@@ -1181,7 +1181,7 @@ not_found:
  * for, i.e. if one wants to add the attribute to the mft record this is the
  * correct place to insert its attribute list entry into.
  *
- * When -errno != -ENOENT, an error occured during the lookup.  @ctx->attr is
+ * When -errno != -ENOENT, an error occurred during the lookup.  @ctx->attr is
  * then undefined and in particular you should not rely on it not changing.
  */
 int ntfs_attr_lookup(const ATTR_TYPE type, const ntfschar *name,
diff --git a/fs/ntfs/compress.c b/fs/ntfs/compress.c
index ef9ed854255c..ee4144ce5d7c 100644
--- a/fs/ntfs/compress.c
+++ b/fs/ntfs/compress.c
@@ -501,7 +501,7 @@ int ntfs_read_compressed_block(struct page *page)
 	VCN start_vcn = (((s64)index << PAGE_CACHE_SHIFT) & ~cb_size_mask) >>
 			vol->cluster_size_bits;
 	/*
-	 * The first vcn after the last wanted vcn (minumum alignment is again
+	 * The first vcn after the last wanted vcn (minimum alignment is again
 	 * PAGE_CACHE_SIZE.
 	 */
 	VCN end_vcn = ((((s64)(index + 1UL) << PAGE_CACHE_SHIFT) + cb_size - 1)
diff --git a/fs/ntfs/inode.c b/fs/ntfs/inode.c
index a627ed82c0a3..c05d6dcf77a4 100644
--- a/fs/ntfs/inode.c
+++ b/fs/ntfs/inode.c
@@ -54,7 +54,7 @@
  *
  * Return 1 if the attributes match and 0 if not.
  *
- * NOTE: This function runs with the inode_lock spin lock held so it is not
+ * NOTE: This function runs with the inode->i_lock spin lock held so it is not
  * allowed to sleep.
  */
 int ntfs_test_inode(struct inode *vi, ntfs_attr *na)
@@ -98,7 +98,7 @@ int ntfs_test_inode(struct inode *vi, ntfs_attr *na)
  *
  * Return 0 on success and -errno on error.
  *
- * NOTE: This function runs with the inode_lock spin lock held so it is not
+ * NOTE: This function runs with the inode->i_lock spin lock held so it is not
  * allowed to sleep. (Hence the GFP_ATOMIC allocation.)
  */
 static int ntfs_init_locked_inode(struct inode *vi, ntfs_attr *na)
@@ -622,7 +622,7 @@ static int ntfs_read_locked_inode(struct inode *vi)
 	 */
 	/* Everyone gets all permissions. */
 	vi->i_mode |= S_IRWXUGO;
-	/* If read-only, noone gets write permissions. */
+	/* If read-only, no one gets write permissions. */
 	if (IS_RDONLY(vi))
 		vi->i_mode &= ~S_IWUGO;
 	if (m->flags & MFT_RECORD_IS_DIRECTORY) {
@@ -2529,7 +2529,7 @@ retry_truncate:
 		 * specifies that the behaviour is unspecified thus we do not
 		 * have to do anything.  This means that in our implementation
 		 * in the rare case that the file is mmap()ped and a write
-		 * occured into the mmap()ped region just beyond the file size
+		 * occurred into the mmap()ped region just beyond the file size
 		 * and writepage has not yet been called to write out the page
 		 * (which would clear the area beyond the file size) and we now
 		 * extend the file size to incorporate this dirty region
diff --git a/fs/ntfs/layout.h b/fs/ntfs/layout.h
index 8b2549f672bf..faece7190866 100644
--- a/fs/ntfs/layout.h
+++ b/fs/ntfs/layout.h
@@ -286,7 +286,7 @@ typedef le16 MFT_RECORD_FLAGS;
  * fragmented. Volume free space includes the empty part of the mft zone and
  * when the volume's free 88% are used up, the mft zone is shrunk by a factor
  * of 2, thus making more space available for more files/data. This process is
- * repeated everytime there is no more free space except for the mft zone until
+ * repeated every time there is no more free space except for the mft zone until
  * there really is no more free space.
  */
 
@@ -1657,13 +1657,13 @@ typedef enum {
  *	pointed to by the Owner field was provided by a defaulting mechanism
  *	rather than explicitly provided by the original provider of the
  *	security descriptor.  This may affect the treatment of the SID with
- *	respect to inheritence of an owner.
+ *	respect to inheritance of an owner.
  *
  * SE_GROUP_DEFAULTED - This boolean flag, when set, indicates that the SID in
  *	the Group field was provided by a defaulting mechanism rather than
  *	explicitly provided by the original provider of the security
  *	descriptor.  This may affect the treatment of the SID with respect to
- *	inheritence of a primary group.
+ *	inheritance of a primary group.
  *
  * SE_DACL_PRESENT - This boolean flag, when set, indicates that the security
  *	descriptor contains a discretionary ACL.  If this flag is set and the
@@ -1674,7 +1674,7 @@ typedef enum {
  *	pointed to by the Dacl field was provided by a defaulting mechanism
  *	rather than explicitly provided by the original provider of the
  *	security descriptor.  This may affect the treatment of the ACL with
- *	respect to inheritence of an ACL.  This flag is ignored if the
+ *	respect to inheritance of an ACL.  This flag is ignored if the
  *	DaclPresent flag is not set.
  *
  * SE_SACL_PRESENT - This boolean flag, when set,  indicates that the security
@@ -1686,7 +1686,7 @@ typedef enum {
  *	pointed to by the Sacl field was provided by a defaulting mechanism
  *	rather than explicitly provided by the original provider of the
  *	security descriptor.  This may affect the treatment of the ACL with
- *	respect to inheritence of an ACL.  This flag is ignored if the
+ *	respect to inheritance of an ACL.  This flag is ignored if the
  *	SaclPresent flag is not set.
  *
  * SE_SELF_RELATIVE - This boolean flag, when set, indicates that the security
@@ -2283,7 +2283,7 @@ typedef struct {
 	//		   the key_length is zero, then the vcn immediately
 	//		   follows the INDEX_ENTRY_HEADER. Regardless of
 	//		   key_length, the address of the 8-byte boundary
-	//		   alligned vcn of INDEX_ENTRY{_HEADER} *ie is given by
+	//		   aligned vcn of INDEX_ENTRY{_HEADER} *ie is given by
 	//		   (char*)ie + le16_to_cpu(ie*)->length) - sizeof(VCN),
 	//		   where sizeof(VCN) can be hardcoded as 8 if wanted. */
 } __attribute__ ((__packed__)) INDEX_ENTRY;
diff --git a/fs/ntfs/logfile.c b/fs/ntfs/logfile.c
index 4dadcdf3d451..c71de292c5ad 100644
--- a/fs/ntfs/logfile.c
+++ b/fs/ntfs/logfile.c
@@ -669,7 +669,7 @@ err_out:
  * of cases where we think that a volume is dirty when in fact it is clean.
  * This should only affect volumes that have not been shutdown cleanly but did
  * not have any pending, non-check-pointed i/o, i.e. they were completely idle
- * at least for the five seconds preceeding the unclean shutdown.
+ * at least for the five seconds preceding the unclean shutdown.
  *
  * This function assumes that the $LogFile journal has already been consistency
  * checked by a call to ntfs_check_logfile() and in particular if the $LogFile
diff --git a/fs/ntfs/logfile.h b/fs/ntfs/logfile.h
index b5a6f08bd35c..aa2b6ac3f0a4 100644
--- a/fs/ntfs/logfile.h
+++ b/fs/ntfs/logfile.h
@@ -222,7 +222,7 @@ typedef struct {
 /* 24*/	sle64 file_size;	/* Usable byte size of the log file.  If the
 				   restart_area_offset + the offset of the
 				   file_size are > 510 then corruption has
-				   occured.  This is the very first check when
+				   occurred.  This is the very first check when
 				   starting with the restart_area as if it
 				   fails it means that some of the above values
 				   will be corrupted by the multi sector
diff --git a/fs/ntfs/mft.c b/fs/ntfs/mft.c
index 326e7475a22a..382857f9c7db 100644
--- a/fs/ntfs/mft.c
+++ b/fs/ntfs/mft.c
@@ -73,7 +73,7 @@ static inline MFT_RECORD *map_mft_record_page(ntfs_inode *ni)
 		if (index > end_index || (i_size & ~PAGE_CACHE_MASK) < ofs +
 				vol->mft_record_size) {
 			page = ERR_PTR(-ENOENT);
-			ntfs_error(vol->sb, "Attemt to read mft record 0x%lx, "
+			ntfs_error(vol->sb, "Attempt to read mft record 0x%lx, "
 					"which is beyond the end of the mft.  "
 					"This is probably a bug in the ntfs "
 					"driver.", ni->mft_no);
@@ -1442,7 +1442,7 @@ static int ntfs_mft_bitmap_extend_allocation_nolock(ntfs_volume *vol)
 		// Note: It will need to be a special mft record and if none of
 		// those are available it gets rather complicated...
 		ntfs_error(vol->sb, "Not enough space in this mft record to "
-				"accomodate extended mft bitmap attribute "
+				"accommodate extended mft bitmap attribute "
 				"extent.  Cannot handle this yet.");
 		ret = -EOPNOTSUPP;
 		goto undo_alloc;
@@ -1879,7 +1879,7 @@ static int ntfs_mft_data_extend_allocation_nolock(ntfs_volume *vol)
 		// and we would then need to update all references to this mft
 		// record appropriately.  This is rather complicated...
 		ntfs_error(vol->sb, "Not enough space in this mft record to "
-				"accomodate extended mft data attribute "
+				"accommodate extended mft data attribute "
 				"extent.  Cannot handle this yet.");
 		ret = -EOPNOTSUPP;
 		goto undo_alloc;
@@ -2357,7 +2357,7 @@ ntfs_inode *ntfs_mft_record_alloc(ntfs_volume *vol, const int mode,
 	}
 #ifdef DEBUG
 	read_lock_irqsave(&mftbmp_ni->size_lock, flags);
-	ntfs_debug("Status of mftbmp after initialized extention: "
+	ntfs_debug("Status of mftbmp after initialized extension: "
 			"allocated_size 0x%llx, data_size 0x%llx, "
 			"initialized_size 0x%llx.",
 			(long long)mftbmp_ni->allocated_size,
diff --git a/fs/ntfs/runlist.c b/fs/ntfs/runlist.c
index 56a9a6d25a2a..eac7d6788a10 100644
--- a/fs/ntfs/runlist.c
+++ b/fs/ntfs/runlist.c
@@ -1243,7 +1243,7 @@ err_out:
  * write.
  *
  * This is used when building the mapping pairs array of a runlist to compress
- * a given logical cluster number (lcn) or a specific run length to the minumum
+ * a given logical cluster number (lcn) or a specific run length to the minimum
  * size possible.
  *
  * Return the number of bytes written on success.  On error, i.e. the
diff --git a/fs/ntfs/super.c b/fs/ntfs/super.c
index 29099a07b9fe..b52706da4645 100644
--- a/fs/ntfs/super.c
+++ b/fs/ntfs/super.c
@@ -458,7 +458,7 @@ static int ntfs_remount(struct super_block *sb, int *flags, char *opt)
 	 * the volume on boot and updates them.
 	 *
 	 * When remounting read-only, mark the volume clean if no volume errors
-	 * have occured.
+	 * have occurred.
 	 */
 	if ((sb->s_flags & MS_RDONLY) && !(*flags & MS_RDONLY)) {
 		static const char *es = ".  Cannot remount read-write.";
@@ -1269,7 +1269,7 @@ static int check_windows_hibernation_status(ntfs_volume *vol)
 					"hibernated on the volume.");
 			return 0;
 		}
-		/* A real error occured. */
+		/* A real error occurred. */
 		ntfs_error(vol->sb, "Failed to find inode number for "
 				"hiberfil.sys.");
 		return ret;
@@ -1370,7 +1370,7 @@ static bool load_and_init_quota(ntfs_volume *vol)
 			NVolSetQuotaOutOfDate(vol);
 			return true;
 		}
-		/* A real error occured. */
+		/* A real error occurred. */
 		ntfs_error(vol->sb, "Failed to find inode number for $Quota.");
 		return false;
 	}
@@ -1454,7 +1454,7 @@ not_enabled:
 			NVolSetUsnJrnlStamped(vol);
 			return true;
 		}
-		/* A real error occured. */
+		/* A real error occurred. */
 		ntfs_error(vol->sb, "Failed to find inode number for "
 				"$UsnJrnl.");
 		return false;
@@ -2292,7 +2292,7 @@ static void ntfs_put_super(struct super_block *sb)
 	ntfs_commit_inode(vol->mft_ino);
 
 	/*
-	 * If a read-write mount and no volume errors have occured, mark the
+	 * If a read-write mount and no volume errors have occurred, mark the
 	 * volume clean.  Also, re-commit all affected inodes.
 	 */
 	if (!(sb->s_flags & MS_RDONLY)) {
@@ -2496,7 +2496,7 @@ static s64 get_nr_free_clusters(ntfs_volume *vol)
 	if (vol->nr_clusters & 63)
 		nr_free += 64 - (vol->nr_clusters & 63);
 	up_read(&vol->lcnbmp_lock);
-	/* If errors occured we may well have gone below zero, fix this. */
+	/* If errors occurred we may well have gone below zero, fix this. */
 	if (nr_free < 0)
 		nr_free = 0;
 	ntfs_debug("Exiting.");
@@ -2561,7 +2561,7 @@ static unsigned long __get_nr_free_mft_records(ntfs_volume *vol,
 	}
 	ntfs_debug("Finished reading $MFT/$BITMAP, last index = 0x%lx.",
 			index - 1);
-	/* If errors occured we may well have gone below zero, fix this. */
+	/* If errors occurred we may well have gone below zero, fix this. */
 	if (nr_free < 0)
 		nr_free = 0;
 	ntfs_debug("Exiting.");
diff --git a/fs/ocfs2/acl.c b/fs/ocfs2/acl.c
index 90f2729b7a5b..e913ad130fdd 100644
--- a/fs/ocfs2/acl.c
+++ b/fs/ocfs2/acl.c
@@ -24,7 +24,6 @@
 #include <linux/slab.h>
 #include <linux/string.h>
 
-#define MLOG_MASK_PREFIX ML_INODE
 #include <cluster/masklog.h>
 
 #include "ocfs2.h"
diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c
index e4984e259cb6..48aa9c7401c7 100644
--- a/fs/ocfs2/alloc.c
+++ b/fs/ocfs2/alloc.c
@@ -30,7 +30,6 @@
 #include <linux/swap.h>
 #include <linux/quotaops.h>
 
-#define MLOG_MASK_PREFIX ML_DISK_ALLOC
 #include <cluster/masklog.h>
 
 #include "ocfs2.h"
@@ -50,6 +49,7 @@
 #include "uptodate.h"
 #include "xattr.h"
 #include "refcounttree.h"
+#include "ocfs2_trace.h"
 
 #include "buffer_head_io.h"
 
@@ -886,8 +886,7 @@ static int ocfs2_validate_extent_block(struct super_block *sb,
 	struct ocfs2_extent_block *eb =
 		(struct ocfs2_extent_block *)bh->b_data;
 
-	mlog(0, "Validating extent block %llu\n",
-	     (unsigned long long)bh->b_blocknr);
+	trace_ocfs2_validate_extent_block((unsigned long long)bh->b_blocknr);
 
 	BUG_ON(!buffer_uptodate(bh));
 
@@ -965,8 +964,6 @@ int ocfs2_num_free_extents(struct ocfs2_super *osb,
 	struct buffer_head *eb_bh = NULL;
 	u64 last_eb_blk = 0;
 
-	mlog_entry_void();
-
 	el = et->et_root_el;
 	last_eb_blk = ocfs2_et_get_last_eb_blk(et);
 
@@ -987,7 +984,7 @@ int ocfs2_num_free_extents(struct ocfs2_super *osb,
 bail:
 	brelse(eb_bh);
 
-	mlog_exit(retval);
+	trace_ocfs2_num_free_extents(retval);
 	return retval;
 }
 
@@ -1010,8 +1007,6 @@ static int ocfs2_create_new_meta_bhs(handle_t *handle,
 		OCFS2_SB(ocfs2_metadata_cache_get_super(et->et_ci));
 	struct ocfs2_extent_block *eb;
 
-	mlog_entry_void();
-
 	count = 0;
 	while (count < wanted) {
 		status = ocfs2_claim_metadata(handle,
@@ -1074,8 +1069,8 @@ bail:
 			brelse(bhs[i]);
 			bhs[i] = NULL;
 		}
+		mlog_errno(status);
 	}
-	mlog_exit(status);
 	return status;
 }
 
@@ -1173,8 +1168,6 @@ static int ocfs2_add_branch(handle_t *handle,
 	struct ocfs2_extent_list  *el;
 	u32 new_cpos, root_end;
 
-	mlog_entry_void();
-
 	BUG_ON(!last_eb_bh || !*last_eb_bh);
 
 	if (eb_bh) {
@@ -1200,8 +1193,11 @@ static int ocfs2_add_branch(handle_t *handle,
 	 * from new_cpos).
 	 */
 	if (root_end > new_cpos) {
-		mlog(0, "adjust the cluster end from %u to %u\n",
-		     root_end, new_cpos);
+		trace_ocfs2_adjust_rightmost_branch(
+			(unsigned long long)
+			ocfs2_metadata_cache_owner(et->et_ci),
+			root_end, new_cpos);
+
 		status = ocfs2_adjust_rightmost_branch(handle, et);
 		if (status) {
 			mlog_errno(status);
@@ -1332,7 +1328,6 @@ bail:
 		kfree(new_eb_bhs);
 	}
 
-	mlog_exit(status);
 	return status;
 }
 
@@ -1353,8 +1348,6 @@ static int ocfs2_shift_tree_depth(handle_t *handle,
 	struct ocfs2_extent_list  *root_el;
 	struct ocfs2_extent_list  *eb_el;
 
-	mlog_entry_void();
-
 	status = ocfs2_create_new_meta_bhs(handle, et, 1, meta_ac,
 					   &new_eb_bh);
 	if (status < 0) {
@@ -1415,7 +1408,6 @@ static int ocfs2_shift_tree_depth(handle_t *handle,
 bail:
 	brelse(new_eb_bh);
 
-	mlog_exit(status);
 	return status;
 }
 
@@ -1446,8 +1438,6 @@ static int ocfs2_find_branch_target(struct ocfs2_extent_tree *et,
 	struct buffer_head *bh = NULL;
 	struct buffer_head *lowest_bh = NULL;
 
-	mlog_entry_void();
-
 	*target_bh = NULL;
 
 	el = et->et_root_el;
@@ -1503,7 +1493,6 @@ static int ocfs2_find_branch_target(struct ocfs2_extent_tree *et,
 bail:
 	brelse(bh);
 
-	mlog_exit(status);
 	return status;
 }
 
@@ -1540,7 +1529,10 @@ static int ocfs2_grow_tree(handle_t *handle, struct ocfs2_extent_tree *et,
 	 * another tree level */
 	if (shift) {
 		BUG_ON(bh);
-		mlog(0, "need to shift tree depth (current = %d)\n", depth);
+		trace_ocfs2_grow_tree(
+			(unsigned long long)
+			ocfs2_metadata_cache_owner(et->et_ci),
+			depth);
 
 		/* ocfs2_shift_tree_depth will return us a buffer with
 		 * the new extent block (so we can pass that to
@@ -1570,7 +1562,6 @@ static int ocfs2_grow_tree(handle_t *handle, struct ocfs2_extent_tree *et,
 
 	/* call ocfs2_add_branch to add the final part of the tree with
 	 * the new data. */
-	mlog(0, "add branch. bh = %p\n", bh);
 	ret = ocfs2_add_branch(handle, et, bh, last_eb_bh,
 			       meta_ac);
 	if (ret < 0) {
@@ -1645,8 +1636,9 @@ static void ocfs2_rotate_leaf(struct ocfs2_extent_list *el,
 	}
 	insert_index = i;
 
-	mlog(0, "ins %u: index %d, has_empty %d, next_free %d, count %d\n",
-	     insert_cpos, insert_index, has_empty, next_free, le16_to_cpu(el->l_count));
+	trace_ocfs2_rotate_leaf(insert_cpos, insert_index,
+				has_empty, next_free,
+				le16_to_cpu(el->l_count));
 
 	BUG_ON(insert_index < 0);
 	BUG_ON(insert_index >= le16_to_cpu(el->l_count));
@@ -2059,7 +2051,7 @@ static void ocfs2_complete_edge_insert(handle_t *handle,
 	left_el = path_leaf_el(left_path);
 	right_el = path_leaf_el(right_path);
 	for(i = left_path->p_tree_depth - 1; i > subtree_index; i--) {
-		mlog(0, "Adjust records at index %u\n", i);
+		trace_ocfs2_complete_edge_insert(i);
 
 		/*
 		 * One nice property of knowing that all of these
@@ -2389,7 +2381,9 @@ static int ocfs2_rotate_tree_right(handle_t *handle,
 		goto out;
 	}
 
-	mlog(0, "Insert: %u, first left path cpos: %u\n", insert_cpos, cpos);
+	trace_ocfs2_rotate_tree_right(
+		(unsigned long long)ocfs2_metadata_cache_owner(et->et_ci),
+		insert_cpos, cpos);
 
 	/*
 	 * What we want to do here is:
@@ -2418,8 +2412,10 @@ static int ocfs2_rotate_tree_right(handle_t *handle,
 	 * rotating subtrees.
 	 */
 	while (cpos && insert_cpos <= cpos) {
-		mlog(0, "Rotating a tree: ins. cpos: %u, left path cpos: %u\n",
-		     insert_cpos, cpos);
+		trace_ocfs2_rotate_tree_right(
+			(unsigned long long)
+			ocfs2_metadata_cache_owner(et->et_ci),
+			insert_cpos, cpos);
 
 		ret = ocfs2_find_path(et->et_ci, left_path, cpos);
 		if (ret) {
@@ -2461,10 +2457,10 @@ static int ocfs2_rotate_tree_right(handle_t *handle,
 
 		start = ocfs2_find_subtree_root(et, left_path, right_path);
 
-		mlog(0, "Subtree root at index %d (blk %llu, depth %d)\n",
-		     start,
-		     (unsigned long long) right_path->p_node[start].bh->b_blocknr,
-		     right_path->p_tree_depth);
+		trace_ocfs2_rotate_subtree(start,
+			(unsigned long long)
+			right_path->p_node[start].bh->b_blocknr,
+			right_path->p_tree_depth);
 
 		ret = ocfs2_extend_rotate_transaction(handle, start,
 						      orig_credits, right_path);
@@ -2964,8 +2960,7 @@ static int __ocfs2_rotate_tree_left(handle_t *handle,
 		subtree_root = ocfs2_find_subtree_root(et, left_path,
 						       right_path);
 
-		mlog(0, "Subtree root at index %d (blk %llu, depth %d)\n",
-		     subtree_root,
+		trace_ocfs2_rotate_subtree(subtree_root,
 		     (unsigned long long)
 		     right_path->p_node[subtree_root].bh->b_blocknr,
 		     right_path->p_tree_depth);
@@ -3989,9 +3984,11 @@ static int ocfs2_append_rec_to_path(handle_t *handle,
 			goto out;
 		}
 
-		mlog(0, "Append may need a left path update. cpos: %u, "
-		     "left_cpos: %u\n", le32_to_cpu(insert_rec->e_cpos),
-		     left_cpos);
+		trace_ocfs2_append_rec_to_path(
+			(unsigned long long)
+			ocfs2_metadata_cache_owner(et->et_ci),
+			le32_to_cpu(insert_rec->e_cpos),
+			left_cpos);
 
 		/*
 		 * No need to worry if the append is already in the
@@ -4522,7 +4519,7 @@ set_tail_append:
 }
 
 /*
- * Helper function called at the begining of an insert.
+ * Helper function called at the beginning of an insert.
  *
  * This computes a few things that are commonly used in the process of
  * inserting into the btree:
@@ -4562,7 +4559,7 @@ static int ocfs2_figure_insert_type(struct ocfs2_extent_tree *et,
 					      ocfs2_et_get_last_eb_blk(et),
 					      &bh);
 		if (ret) {
-			mlog_exit(ret);
+			mlog_errno(ret);
 			goto out;
 		}
 		eb = (struct ocfs2_extent_block *) bh->b_data;
@@ -4678,9 +4675,9 @@ int ocfs2_insert_extent(handle_t *handle,
 	struct ocfs2_insert_type insert = {0, };
 	struct ocfs2_extent_rec rec;
 
-	mlog(0, "add %u clusters at position %u to owner %llu\n",
-	     new_clusters, cpos,
-	     (unsigned long long)ocfs2_metadata_cache_owner(et->et_ci));
+	trace_ocfs2_insert_extent_start(
+		(unsigned long long)ocfs2_metadata_cache_owner(et->et_ci),
+		cpos, new_clusters);
 
 	memset(&rec, 0, sizeof(rec));
 	rec.e_cpos = cpu_to_le32(cpos);
@@ -4700,11 +4697,9 @@ int ocfs2_insert_extent(handle_t *handle,
 		goto bail;
 	}
 
-	mlog(0, "Insert.appending: %u, Insert.Contig: %u, "
-	     "Insert.contig_index: %d, Insert.free_records: %d, "
-	     "Insert.tree_depth: %d\n",
-	     insert.ins_appending, insert.ins_contig, insert.ins_contig_index,
-	     free_records, insert.ins_tree_depth);
+	trace_ocfs2_insert_extent(insert.ins_appending, insert.ins_contig,
+				  insert.ins_contig_index, free_records,
+				  insert.ins_tree_depth);
 
 	if (insert.ins_contig == CONTIG_NONE && free_records == 0) {
 		status = ocfs2_grow_tree(handle, et,
@@ -4726,7 +4721,6 @@ int ocfs2_insert_extent(handle_t *handle,
 bail:
 	brelse(last_eb_bh);
 
-	mlog_exit(status);
 	return status;
 }
 
@@ -4746,7 +4740,7 @@ int ocfs2_add_clusters_in_btree(handle_t *handle,
 				struct ocfs2_alloc_context *meta_ac,
 				enum ocfs2_alloc_restarted *reason_ret)
 {
-	int status = 0;
+	int status = 0, err = 0;
 	int free_extents;
 	enum ocfs2_alloc_restarted reason = RESTART_NONE;
 	u32 bit_off, num_bits;
@@ -4773,14 +4767,14 @@ int ocfs2_add_clusters_in_btree(handle_t *handle,
 	 * 2) we are so fragmented, we've needed to add metadata too
 	 *    many times. */
 	if (!free_extents && !meta_ac) {
-		mlog(0, "we haven't reserved any metadata!\n");
+		err = -1;
 		status = -EAGAIN;
 		reason = RESTART_META;
 		goto leave;
 	} else if ((!free_extents)
 		   && (ocfs2_alloc_context_bits_left(meta_ac)
 		       < ocfs2_extend_meta_needed(et->et_root_el))) {
-		mlog(0, "filesystem is really fragmented...\n");
+		err = -2;
 		status = -EAGAIN;
 		reason = RESTART_META;
 		goto leave;
@@ -4805,9 +4799,9 @@ int ocfs2_add_clusters_in_btree(handle_t *handle,
 	}
 
 	block = ocfs2_clusters_to_blocks(osb->sb, bit_off);
-	mlog(0, "Allocating %u clusters at block %u for owner %llu\n",
-	     num_bits, bit_off,
-	     (unsigned long long)ocfs2_metadata_cache_owner(et->et_ci));
+	trace_ocfs2_add_clusters_in_btree(
+	     (unsigned long long)ocfs2_metadata_cache_owner(et->et_ci),
+	     bit_off, num_bits);
 	status = ocfs2_insert_extent(handle, et, *logical_offset, block,
 				     num_bits, flags, meta_ac);
 	if (status < 0) {
@@ -4821,16 +4815,15 @@ int ocfs2_add_clusters_in_btree(handle_t *handle,
 	*logical_offset += num_bits;
 
 	if (clusters_to_add) {
-		mlog(0, "need to alloc once more, wanted = %u\n",
-		     clusters_to_add);
+		err = clusters_to_add;
 		status = -EAGAIN;
 		reason = RESTART_TRANS;
 	}
 
 leave:
-	mlog_exit(status);
 	if (reason_ret)
 		*reason_ret = reason;
+	trace_ocfs2_add_clusters_in_btree_ret(status, reason, err);
 	return status;
 }
 
@@ -5039,7 +5032,7 @@ int ocfs2_split_extent(handle_t *handle,
 					      ocfs2_et_get_last_eb_blk(et),
 					      &last_eb_bh);
 		if (ret) {
-			mlog_exit(ret);
+			mlog_errno(ret);
 			goto out;
 		}
 
@@ -5056,9 +5049,9 @@ int ocfs2_split_extent(handle_t *handle,
 
 	ctxt.c_has_empty_extent = ocfs2_is_empty_extent(&el->l_recs[0]);
 
-	mlog(0, "index: %d, contig: %u, has_empty: %u, split_covers: %u\n",
-	     split_index, ctxt.c_contig_type, ctxt.c_has_empty_extent,
-	     ctxt.c_split_covers_rec);
+	trace_ocfs2_split_extent(split_index, ctxt.c_contig_type,
+				 ctxt.c_has_empty_extent,
+				 ctxt.c_split_covers_rec);
 
 	if (ctxt.c_contig_type == CONTIG_NONE) {
 		if (ctxt.c_split_covers_rec)
@@ -5192,8 +5185,9 @@ int ocfs2_mark_extent_written(struct inode *inode,
 {
 	int ret;
 
-	mlog(0, "Inode %lu cpos %u, len %u, phys clusters %u\n",
-	     inode->i_ino, cpos, len, phys);
+	trace_ocfs2_mark_extent_written(
+		(unsigned long long)OCFS2_I(inode)->ip_blkno,
+		cpos, len, phys);
 
 	if (!ocfs2_writes_unwritten_extents(OCFS2_SB(inode->i_sb))) {
 		ocfs2_error(inode->i_sb, "Inode %llu has unwritten extents "
@@ -5512,11 +5506,10 @@ int ocfs2_remove_extent(handle_t *handle,
 
 	BUG_ON(cpos < le32_to_cpu(rec->e_cpos) || trunc_range > rec_range);
 
-	mlog(0, "Owner %llu, remove (cpos %u, len %u). Existing index %d "
-	     "(cpos %u, len %u)\n",
-	     (unsigned long long)ocfs2_metadata_cache_owner(et->et_ci),
-	     cpos, len, index,
-	     le32_to_cpu(rec->e_cpos), ocfs2_rec_clusters(el, rec));
+	trace_ocfs2_remove_extent(
+		(unsigned long long)ocfs2_metadata_cache_owner(et->et_ci),
+		cpos, len, index, le32_to_cpu(rec->e_cpos),
+		ocfs2_rec_clusters(el, rec));
 
 	if (le32_to_cpu(rec->e_cpos) == cpos || rec_range == trunc_range) {
 		ret = ocfs2_truncate_rec(handle, et, path, index, dealloc,
@@ -5795,9 +5788,6 @@ int ocfs2_truncate_log_append(struct ocfs2_super *osb,
 	struct ocfs2_dinode *di;
 	struct ocfs2_truncate_log *tl;
 
-	mlog_entry("start_blk = %llu, num_clusters = %u\n",
-		   (unsigned long long)start_blk, num_clusters);
-
 	BUG_ON(mutex_trylock(&tl_inode->i_mutex));
 
 	start_cluster = ocfs2_blocks_to_clusters(osb->sb, start_blk);
@@ -5834,10 +5824,9 @@ int ocfs2_truncate_log_append(struct ocfs2_super *osb,
 		goto bail;
 	}
 
-	mlog(0, "Log truncate of %u clusters starting at cluster %u to "
-	     "%llu (index = %d)\n", num_clusters, start_cluster,
-	     (unsigned long long)OCFS2_I(tl_inode)->ip_blkno, index);
-
+	trace_ocfs2_truncate_log_append(
+		(unsigned long long)OCFS2_I(tl_inode)->ip_blkno, index,
+		start_cluster, num_clusters);
 	if (ocfs2_truncate_log_can_coalesce(tl, start_cluster)) {
 		/*
 		 * Move index back to the record we are coalescing with.
@@ -5846,9 +5835,10 @@ int ocfs2_truncate_log_append(struct ocfs2_super *osb,
 		index--;
 
 		num_clusters += le32_to_cpu(tl->tl_recs[index].t_clusters);
-		mlog(0, "Coalesce with index %u (start = %u, clusters = %u)\n",
-		     index, le32_to_cpu(tl->tl_recs[index].t_start),
-		     num_clusters);
+		trace_ocfs2_truncate_log_append(
+			(unsigned long long)OCFS2_I(tl_inode)->ip_blkno,
+			index, le32_to_cpu(tl->tl_recs[index].t_start),
+			num_clusters);
 	} else {
 		tl->tl_recs[index].t_start = cpu_to_le32(start_cluster);
 		tl->tl_used = cpu_to_le16(index + 1);
@@ -5859,7 +5849,6 @@ int ocfs2_truncate_log_append(struct ocfs2_super *osb,
 
 	osb->truncated_clusters += num_clusters;
 bail:
-	mlog_exit(status);
 	return status;
 }
 
@@ -5878,8 +5867,6 @@ static int ocfs2_replay_truncate_records(struct ocfs2_super *osb,
 	struct inode *tl_inode = osb->osb_tl_inode;
 	struct buffer_head *tl_bh = osb->osb_tl_bh;
 
-	mlog_entry_void();
-
 	di = (struct ocfs2_dinode *) tl_bh->b_data;
 	tl = &di->id2.i_dealloc;
 	i = le16_to_cpu(tl->tl_used) - 1;
@@ -5915,8 +5902,9 @@ static int ocfs2_replay_truncate_records(struct ocfs2_super *osb,
 		/* if start_blk is not set, we ignore the record as
 		 * invalid. */
 		if (start_blk) {
-			mlog(0, "free record %d, start = %u, clusters = %u\n",
-			     i, le32_to_cpu(rec.t_start), num_clusters);
+			trace_ocfs2_replay_truncate_records(
+				(unsigned long long)OCFS2_I(tl_inode)->ip_blkno,
+				i, le32_to_cpu(rec.t_start), num_clusters);
 
 			status = ocfs2_free_clusters(handle, data_alloc_inode,
 						     data_alloc_bh, start_blk,
@@ -5932,7 +5920,6 @@ static int ocfs2_replay_truncate_records(struct ocfs2_super *osb,
 	osb->truncated_clusters = 0;
 
 bail:
-	mlog_exit(status);
 	return status;
 }
 
@@ -5949,8 +5936,6 @@ int __ocfs2_flush_truncate_log(struct ocfs2_super *osb)
 	struct ocfs2_dinode *di;
 	struct ocfs2_truncate_log *tl;
 
-	mlog_entry_void();
-
 	BUG_ON(mutex_trylock(&tl_inode->i_mutex));
 
 	di = (struct ocfs2_dinode *) tl_bh->b_data;
@@ -5962,8 +5947,9 @@ int __ocfs2_flush_truncate_log(struct ocfs2_super *osb)
 
 	tl = &di->id2.i_dealloc;
 	num_to_flush = le16_to_cpu(tl->tl_used);
-	mlog(0, "Flush %u records from truncate log #%llu\n",
-	     num_to_flush, (unsigned long long)OCFS2_I(tl_inode)->ip_blkno);
+	trace_ocfs2_flush_truncate_log(
+		(unsigned long long)OCFS2_I(tl_inode)->ip_blkno,
+		num_to_flush);
 	if (!num_to_flush) {
 		status = 0;
 		goto out;
@@ -6009,7 +5995,6 @@ out_mutex:
 	iput(data_alloc_inode);
 
 out:
-	mlog_exit(status);
 	return status;
 }
 
@@ -6032,15 +6017,11 @@ static void ocfs2_truncate_log_worker(struct work_struct *work)
 		container_of(work, struct ocfs2_super,
 			     osb_truncate_log_wq.work);
 
-	mlog_entry_void();
-
 	status = ocfs2_flush_truncate_log(osb);
 	if (status < 0)
 		mlog_errno(status);
 	else
 		ocfs2_init_steal_slots(osb);
-
-	mlog_exit(status);
 }
 
 #define OCFS2_TRUNCATE_LOG_FLUSH_INTERVAL (2 * HZ)
@@ -6086,7 +6067,6 @@ static int ocfs2_get_truncate_log_info(struct ocfs2_super *osb,
 	*tl_inode = inode;
 	*tl_bh    = bh;
 bail:
-	mlog_exit(status);
 	return status;
 }
 
@@ -6106,7 +6086,7 @@ int ocfs2_begin_truncate_log_recovery(struct ocfs2_super *osb,
 
 	*tl_copy = NULL;
 
-	mlog(0, "recover truncate log from slot %d\n", slot_num);
+	trace_ocfs2_begin_truncate_log_recovery(slot_num);
 
 	status = ocfs2_get_truncate_log_info(osb, slot_num, &tl_inode, &tl_bh);
 	if (status < 0) {
@@ -6123,8 +6103,7 @@ int ocfs2_begin_truncate_log_recovery(struct ocfs2_super *osb,
 
 	tl = &di->id2.i_dealloc;
 	if (le16_to_cpu(tl->tl_used)) {
-		mlog(0, "We'll have %u logs to recover\n",
-		     le16_to_cpu(tl->tl_used));
+		trace_ocfs2_truncate_log_recovery_num(le16_to_cpu(tl->tl_used));
 
 		*tl_copy = kmalloc(tl_bh->b_size, GFP_KERNEL);
 		if (!(*tl_copy)) {
@@ -6157,9 +6136,9 @@ bail:
 	if (status < 0 && (*tl_copy)) {
 		kfree(*tl_copy);
 		*tl_copy = NULL;
+		mlog_errno(status);
 	}
 
-	mlog_exit(status);
 	return status;
 }
 
@@ -6174,8 +6153,6 @@ int ocfs2_complete_truncate_log_recovery(struct ocfs2_super *osb,
 	struct inode *tl_inode = osb->osb_tl_inode;
 	struct ocfs2_truncate_log *tl;
 
-	mlog_entry_void();
-
 	if (OCFS2_I(tl_inode)->ip_blkno == le64_to_cpu(tl_copy->i_blkno)) {
 		mlog(ML_ERROR, "Asked to recover my own truncate log!\n");
 		return -EINVAL;
@@ -6183,8 +6160,9 @@ int ocfs2_complete_truncate_log_recovery(struct ocfs2_super *osb,
 
 	tl = &tl_copy->id2.i_dealloc;
 	num_recs = le16_to_cpu(tl->tl_used);
-	mlog(0, "cleanup %u records from %llu\n", num_recs,
-	     (unsigned long long)le64_to_cpu(tl_copy->i_blkno));
+	trace_ocfs2_complete_truncate_log_recovery(
+		(unsigned long long)le64_to_cpu(tl_copy->i_blkno),
+		num_recs);
 
 	mutex_lock(&tl_inode->i_mutex);
 	for(i = 0; i < num_recs; i++) {
@@ -6219,7 +6197,6 @@ int ocfs2_complete_truncate_log_recovery(struct ocfs2_super *osb,
 bail_up:
 	mutex_unlock(&tl_inode->i_mutex);
 
-	mlog_exit(status);
 	return status;
 }
 
@@ -6228,8 +6205,6 @@ void ocfs2_truncate_log_shutdown(struct ocfs2_super *osb)
 	int status;
 	struct inode *tl_inode = osb->osb_tl_inode;
 
-	mlog_entry_void();
-
 	if (tl_inode) {
 		cancel_delayed_work(&osb->osb_truncate_log_wq);
 		flush_workqueue(ocfs2_wq);
@@ -6241,8 +6216,6 @@ void ocfs2_truncate_log_shutdown(struct ocfs2_super *osb)
 		brelse(osb->osb_tl_bh);
 		iput(osb->osb_tl_inode);
 	}
-
-	mlog_exit_void();
 }
 
 int ocfs2_truncate_log_init(struct ocfs2_super *osb)
@@ -6251,8 +6224,6 @@ int ocfs2_truncate_log_init(struct ocfs2_super *osb)
 	struct inode *tl_inode = NULL;
 	struct buffer_head *tl_bh = NULL;
 
-	mlog_entry_void();
-
 	status = ocfs2_get_truncate_log_info(osb,
 					     osb->slot_num,
 					     &tl_inode,
@@ -6268,7 +6239,6 @@ int ocfs2_truncate_log_init(struct ocfs2_super *osb)
 	osb->osb_tl_bh    = tl_bh;
 	osb->osb_tl_inode = tl_inode;
 
-	mlog_exit(status);
 	return status;
 }
 
@@ -6350,8 +6320,8 @@ static int ocfs2_free_cached_blocks(struct ocfs2_super *osb,
 		else
 			bg_blkno = ocfs2_which_suballoc_group(head->free_blk,
 							      head->free_bit);
-		mlog(0, "Free bit: (bit %u, blkno %llu)\n",
-		     head->free_bit, (unsigned long long)head->free_blk);
+		trace_ocfs2_free_cached_blocks(
+		     (unsigned long long)head->free_blk, head->free_bit);
 
 		ret = ocfs2_free_suballoc_bits(handle, inode, di_bh,
 					       head->free_bit, bg_blkno, 1);
@@ -6404,8 +6374,7 @@ int ocfs2_cache_cluster_dealloc(struct ocfs2_cached_dealloc_ctxt *ctxt,
 		return ret;
 	}
 
-	mlog(0, "Insert clusters: (bit %u, blk %llu)\n",
-	     bit, (unsigned long long)blkno);
+	trace_ocfs2_cache_cluster_dealloc((unsigned long long)blkno, bit);
 
 	item->free_blk = blkno;
 	item->free_bit = bit;
@@ -6480,8 +6449,8 @@ int ocfs2_run_deallocs(struct ocfs2_super *osb,
 		fl = ctxt->c_first_suballocator;
 
 		if (fl->f_first) {
-			mlog(0, "Free items: (type %u, slot %d)\n",
-			     fl->f_inode_type, fl->f_slot);
+			trace_ocfs2_run_deallocs(fl->f_inode_type,
+						 fl->f_slot);
 			ret2 = ocfs2_free_cached_blocks(osb,
 							fl->f_inode_type,
 							fl->f_slot,
@@ -6558,8 +6527,9 @@ int ocfs2_cache_block_dealloc(struct ocfs2_cached_dealloc_ctxt *ctxt,
 		goto out;
 	}
 
-	mlog(0, "Insert: (type %d, slot %u, bit %u, blk %llu)\n",
-	     type, slot, bit, (unsigned long long)blkno);
+	trace_ocfs2_cache_block_dealloc(type, slot,
+					(unsigned long long)suballoc,
+					(unsigned long long)blkno, bit);
 
 	item->free_bg = suballoc;
 	item->free_blk = blkno;
@@ -7005,8 +6975,6 @@ int ocfs2_commit_truncate(struct ocfs2_super *osb,
 	struct ocfs2_extent_tree et;
 	struct ocfs2_cached_dealloc_ctxt dealloc;
 
-	mlog_entry_void();
-
 	ocfs2_init_dinode_extent_tree(&et, INODE_CACHE(inode), di_bh);
 	ocfs2_init_dealloc_ctxt(&dealloc);
 
@@ -7041,8 +7009,11 @@ start:
 		goto bail;
 	}
 
-	mlog(0, "inode->ip_clusters = %u, tree_depth = %u\n",
-	     OCFS2_I(inode)->ip_clusters, path->p_tree_depth);
+	trace_ocfs2_commit_truncate(
+		(unsigned long long)OCFS2_I(inode)->ip_blkno,
+		new_highest_cpos,
+		OCFS2_I(inode)->ip_clusters,
+		path->p_tree_depth);
 
 	/*
 	 * By now, el will point to the extent list on the bottom most
@@ -7136,7 +7107,6 @@ bail:
 
 	ocfs2_free_path(path);
 
-	mlog_exit(status);
 	return status;
 }
 
diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c
index daea0359e974..ac97bca282d2 100644
--- a/fs/ocfs2/aops.c
+++ b/fs/ocfs2/aops.c
@@ -29,7 +29,6 @@
 #include <linux/mpage.h>
 #include <linux/quotaops.h>
 
-#define MLOG_MASK_PREFIX ML_FILE_IO
 #include <cluster/masklog.h>
 
 #include "ocfs2.h"
@@ -45,6 +44,7 @@
 #include "super.h"
 #include "symlink.h"
 #include "refcounttree.h"
+#include "ocfs2_trace.h"
 
 #include "buffer_head_io.h"
 
@@ -59,8 +59,9 @@ static int ocfs2_symlink_get_block(struct inode *inode, sector_t iblock,
 	struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
 	void *kaddr;
 
-	mlog_entry("(0x%p, %llu, 0x%p, %d)\n", inode,
-		   (unsigned long long)iblock, bh_result, create);
+	trace_ocfs2_symlink_get_block(
+			(unsigned long long)OCFS2_I(inode)->ip_blkno,
+			(unsigned long long)iblock, bh_result, create);
 
 	BUG_ON(ocfs2_inode_is_fast_symlink(inode));
 
@@ -123,7 +124,6 @@ static int ocfs2_symlink_get_block(struct inode *inode, sector_t iblock,
 bail:
 	brelse(bh);
 
-	mlog_exit(err);
 	return err;
 }
 
@@ -136,8 +136,8 @@ int ocfs2_get_block(struct inode *inode, sector_t iblock,
 	u64 p_blkno, count, past_eof;
 	struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
 
-	mlog_entry("(0x%p, %llu, 0x%p, %d)\n", inode,
-		   (unsigned long long)iblock, bh_result, create);
+	trace_ocfs2_get_block((unsigned long long)OCFS2_I(inode)->ip_blkno,
+			      (unsigned long long)iblock, bh_result, create);
 
 	if (OCFS2_I(inode)->ip_flags & OCFS2_INODE_SYSTEM_FILE)
 		mlog(ML_NOTICE, "get_block on system inode 0x%p (%lu)\n",
@@ -199,8 +199,9 @@ int ocfs2_get_block(struct inode *inode, sector_t iblock,
 	}
 
 	past_eof = ocfs2_blocks_for_bytes(inode->i_sb, i_size_read(inode));
-	mlog(0, "Inode %lu, past_eof = %llu\n", inode->i_ino,
-	     (unsigned long long)past_eof);
+
+	trace_ocfs2_get_block_end((unsigned long long)OCFS2_I(inode)->ip_blkno,
+				  (unsigned long long)past_eof);
 	if (create && (iblock >= past_eof))
 		set_buffer_new(bh_result);
 
@@ -208,7 +209,6 @@ bail:
 	if (err < 0)
 		err = -EIO;
 
-	mlog_exit(err);
 	return err;
 }
 
@@ -278,7 +278,8 @@ static int ocfs2_readpage(struct file *file, struct page *page)
 	loff_t start = (loff_t)page->index << PAGE_CACHE_SHIFT;
 	int ret, unlock = 1;
 
-	mlog_entry("(0x%p, %lu)\n", file, (page ? page->index : 0));
+	trace_ocfs2_readpage((unsigned long long)oi->ip_blkno,
+			     (page ? page->index : 0));
 
 	ret = ocfs2_inode_lock_with_page(inode, NULL, 0, page);
 	if (ret != 0) {
@@ -323,7 +324,6 @@ out_inode_unlock:
 out:
 	if (unlock)
 		unlock_page(page);
-	mlog_exit(ret);
 	return ret;
 }
 
@@ -396,15 +396,11 @@ out_unlock:
  */
 static int ocfs2_writepage(struct page *page, struct writeback_control *wbc)
 {
-	int ret;
-
-	mlog_entry("(0x%p)\n", page);
-
-	ret = block_write_full_page(page, ocfs2_get_block, wbc);
+	trace_ocfs2_writepage(
+		(unsigned long long)OCFS2_I(page->mapping->host)->ip_blkno,
+		page->index);
 
-	mlog_exit(ret);
-
-	return ret;
+	return block_write_full_page(page, ocfs2_get_block, wbc);
 }
 
 /* Taken from ext3. We don't necessarily need the full blown
@@ -450,7 +446,8 @@ static sector_t ocfs2_bmap(struct address_space *mapping, sector_t block)
 	int err = 0;
 	struct inode *inode = mapping->host;
 
-	mlog_entry("(block = %llu)\n", (unsigned long long)block);
+	trace_ocfs2_bmap((unsigned long long)OCFS2_I(inode)->ip_blkno,
+			 (unsigned long long)block);
 
 	/* We don't need to lock journal system files, since they aren't
 	 * accessed concurrently from multiple nodes.
@@ -484,8 +481,6 @@ static sector_t ocfs2_bmap(struct address_space *mapping, sector_t block)
 bail:
 	status = err ? 0 : p_blkno;
 
-	mlog_exit((int)status);
-
 	return status;
 }
 
@@ -616,9 +611,6 @@ static ssize_t ocfs2_direct_IO(int rw,
 {
 	struct file *file = iocb->ki_filp;
 	struct inode *inode = file->f_path.dentry->d_inode->i_mapping->host;
-	int ret;
-
-	mlog_entry_void();
 
 	/*
 	 * Fallback to buffered I/O if we see an inode without
@@ -631,13 +623,10 @@ static ssize_t ocfs2_direct_IO(int rw,
 	if (i_size_read(inode) <= offset)
 		return 0;
 
-	ret = __blockdev_direct_IO(rw, iocb, inode, inode->i_sb->s_bdev,
-				   iov, offset, nr_segs,
-				   ocfs2_direct_IO_get_blocks,
-				   ocfs2_dio_end_io, NULL, 0);
-
-	mlog_exit(ret);
-	return ret;
+	return __blockdev_direct_IO(rw, iocb, inode, inode->i_sb->s_bdev,
+				    iov, offset, nr_segs,
+				    ocfs2_direct_IO_get_blocks,
+				    ocfs2_dio_end_io, NULL, 0);
 }
 
 static void ocfs2_figure_cluster_boundaries(struct ocfs2_super *osb,
@@ -1026,6 +1015,12 @@ static int ocfs2_prepare_page_for_write(struct inode *inode, u64 *p_blkno,
 	ocfs2_figure_cluster_boundaries(OCFS2_SB(inode->i_sb), cpos,
 					&cluster_start, &cluster_end);
 
+	/* treat the write as new if the a hole/lseek spanned across
+	 * the page boundary.
+	 */
+	new = new | ((i_size_read(inode) <= page_offset(page)) &&
+			(page_offset(page) <= user_pos));
+
 	if (page == wc->w_target_page) {
 		map_from = user_pos & (PAGE_CACHE_SIZE - 1);
 		map_to = map_from + user_len;
@@ -1534,9 +1529,9 @@ static int ocfs2_try_to_write_inline_data(struct address_space *mapping,
 	struct ocfs2_inode_info *oi = OCFS2_I(inode);
 	struct ocfs2_dinode *di = NULL;
 
-	mlog(0, "Inode %llu, write of %u bytes at off %llu. features: 0x%x\n",
-	     (unsigned long long)oi->ip_blkno, len, (unsigned long long)pos,
-	     oi->ip_dyn_features);
+	trace_ocfs2_try_to_write_inline_data((unsigned long long)oi->ip_blkno,
+					     len, (unsigned long long)pos,
+					     oi->ip_dyn_features);
 
 	/*
 	 * Handle inodes which already have inline data 1st.
@@ -1739,6 +1734,13 @@ try_again:
 
 	di = (struct ocfs2_dinode *)wc->w_di_bh->b_data;
 
+	trace_ocfs2_write_begin_nolock(
+			(unsigned long long)OCFS2_I(inode)->ip_blkno,
+			(long long)i_size_read(inode),
+			le32_to_cpu(di->i_clusters),
+			pos, len, flags, mmap_page,
+			clusters_to_alloc, extents_to_split);
+
 	/*
 	 * We set w_target_from, w_target_to here so that
 	 * ocfs2_write_end() knows which range in the target page to
@@ -1751,12 +1753,6 @@ try_again:
 		 * ocfs2_lock_allocators(). It greatly over-estimates
 		 * the work to be done.
 		 */
-		mlog(0, "extend inode %llu, i_size = %lld, di->i_clusters = %u,"
-		     " clusters_to_add = %u, extents_to_split = %u\n",
-		     (unsigned long long)OCFS2_I(inode)->ip_blkno,
-		     (long long)i_size_read(inode), le32_to_cpu(di->i_clusters),
-		     clusters_to_alloc, extents_to_split);
-
 		ocfs2_init_dinode_extent_tree(&et, INODE_CACHE(inode),
 					      wc->w_di_bh);
 		ret = ocfs2_lock_allocators(inode, &et,
@@ -1938,8 +1934,8 @@ static void ocfs2_write_end_inline(struct inode *inode, loff_t pos,
 	memcpy(di->id2.i_data.id_data + pos, kaddr + pos, *copied);
 	kunmap_atomic(kaddr, KM_USER0);
 
-	mlog(0, "Data written to inode at offset %llu. "
-	     "id_count = %u, copied = %u, i_dyn_features = 0x%x\n",
+	trace_ocfs2_write_end_inline(
+	     (unsigned long long)OCFS2_I(inode)->ip_blkno,
 	     (unsigned long long)pos, *copied,
 	     le16_to_cpu(di->id2.i_data.id_count),
 	     le16_to_cpu(di->i_dyn_features));
diff --git a/fs/ocfs2/aops.h b/fs/ocfs2/aops.h
index eceb456037c1..75cf3ad987a6 100644
--- a/fs/ocfs2/aops.h
+++ b/fs/ocfs2/aops.h
@@ -71,7 +71,7 @@ static inline void ocfs2_iocb_set_rw_locked(struct kiocb *iocb, int level)
 
 /*
  * Using a named enum representing lock types in terms of #N bit stored in
- * iocb->private, which is going to be used for communication bewteen
+ * iocb->private, which is going to be used for communication between
  * ocfs2_dio_end_io() and ocfs2_file_aio_write/read().
  */
 enum ocfs2_iocb_lock_bits {
diff --git a/fs/ocfs2/buffer_head_io.c b/fs/ocfs2/buffer_head_io.c
index f9d5d3ffc75a..5d18ad10c27f 100644
--- a/fs/ocfs2/buffer_head_io.c
+++ b/fs/ocfs2/buffer_head_io.c
@@ -35,8 +35,8 @@
 #include "inode.h"
 #include "journal.h"
 #include "uptodate.h"
-
 #include "buffer_head_io.h"
+#include "ocfs2_trace.h"
 
 /*
  * Bits on bh->b_state used by ocfs2.
@@ -55,8 +55,7 @@ int ocfs2_write_block(struct ocfs2_super *osb, struct buffer_head *bh,
 {
 	int ret = 0;
 
-	mlog_entry("(bh->b_blocknr = %llu, ci=%p)\n",
-		   (unsigned long long)bh->b_blocknr, ci);
+	trace_ocfs2_write_block((unsigned long long)bh->b_blocknr, ci);
 
 	BUG_ON(bh->b_blocknr < OCFS2_SUPER_BLOCK_BLKNO);
 	BUG_ON(buffer_jbd(bh));
@@ -66,6 +65,7 @@ int ocfs2_write_block(struct ocfs2_super *osb, struct buffer_head *bh,
 	 * can get modified during recovery even if read-only. */
 	if (ocfs2_is_hard_readonly(osb)) {
 		ret = -EROFS;
+		mlog_errno(ret);
 		goto out;
 	}
 
@@ -91,11 +91,11 @@ int ocfs2_write_block(struct ocfs2_super *osb, struct buffer_head *bh,
 		 * uptodate. */
 		ret = -EIO;
 		put_bh(bh);
+		mlog_errno(ret);
 	}
 
 	ocfs2_metadata_cache_io_unlock(ci);
 out:
-	mlog_exit(ret);
 	return ret;
 }
 
@@ -106,10 +106,10 @@ int ocfs2_read_blocks_sync(struct ocfs2_super *osb, u64 block,
 	unsigned int i;
 	struct buffer_head *bh;
 
-	if (!nr) {
-		mlog(ML_BH_IO, "No buffers will be read!\n");
+	trace_ocfs2_read_blocks_sync((unsigned long long)block, nr);
+
+	if (!nr)
 		goto bail;
-	}
 
 	for (i = 0 ; i < nr ; i++) {
 		if (bhs[i] == NULL) {
@@ -123,10 +123,8 @@ int ocfs2_read_blocks_sync(struct ocfs2_super *osb, u64 block,
 		bh = bhs[i];
 
 		if (buffer_jbd(bh)) {
-			mlog(ML_BH_IO,
-			     "trying to sync read a jbd "
-			     "managed bh (blocknr = %llu), skipping\n",
-			     (unsigned long long)bh->b_blocknr);
+			trace_ocfs2_read_blocks_sync_jbd(
+					(unsigned long long)bh->b_blocknr);
 			continue;
 		}
 
@@ -186,8 +184,7 @@ int ocfs2_read_blocks(struct ocfs2_caching_info *ci, u64 block, int nr,
 	struct buffer_head *bh;
 	struct super_block *sb = ocfs2_metadata_cache_get_super(ci);
 
-	mlog_entry("(ci=%p, block=(%llu), nr=(%d), flags=%d)\n",
-		   ci, (unsigned long long)block, nr, flags);
+	trace_ocfs2_read_blocks_begin(ci, (unsigned long long)block, nr, flags);
 
 	BUG_ON(!ci);
 	BUG_ON((flags & OCFS2_BH_READAHEAD) &&
@@ -207,7 +204,6 @@ int ocfs2_read_blocks(struct ocfs2_caching_info *ci, u64 block, int nr,
 	}
 
 	if (nr == 0) {
-		mlog(ML_BH_IO, "No buffers will be read!\n");
 		status = 0;
 		goto bail;
 	}
@@ -251,8 +247,7 @@ int ocfs2_read_blocks(struct ocfs2_caching_info *ci, u64 block, int nr,
 		 */
 
 		if (!ignore_cache && !ocfs2_buffer_uptodate(ci, bh)) {
-			mlog(ML_UPTODATE,
-			     "bh (%llu), owner %llu not uptodate\n",
+			trace_ocfs2_read_blocks_from_disk(
 			     (unsigned long long)bh->b_blocknr,
 			     (unsigned long long)ocfs2_metadata_cache_owner(ci));
 			/* We're using ignore_cache here to say
@@ -260,11 +255,10 @@ int ocfs2_read_blocks(struct ocfs2_caching_info *ci, u64 block, int nr,
 			ignore_cache = 1;
 		}
 
+		trace_ocfs2_read_blocks_bh((unsigned long long)bh->b_blocknr,
+			ignore_cache, buffer_jbd(bh), buffer_dirty(bh));
+
 		if (buffer_jbd(bh)) {
-			if (ignore_cache)
-				mlog(ML_BH_IO, "trying to sync read a jbd "
-					       "managed bh (blocknr = %llu)\n",
-				     (unsigned long long)bh->b_blocknr);
 			continue;
 		}
 
@@ -272,9 +266,6 @@ int ocfs2_read_blocks(struct ocfs2_caching_info *ci, u64 block, int nr,
 			if (buffer_dirty(bh)) {
 				/* This should probably be a BUG, or
 				 * at least return an error. */
-				mlog(ML_BH_IO, "asking me to sync read a dirty "
-					       "buffer! (blocknr = %llu)\n",
-				     (unsigned long long)bh->b_blocknr);
 				continue;
 			}
 
@@ -367,14 +358,11 @@ int ocfs2_read_blocks(struct ocfs2_caching_info *ci, u64 block, int nr,
 	}
 	ocfs2_metadata_cache_io_unlock(ci);
 
-	mlog(ML_BH_IO, "block=(%llu), nr=(%d), cached=%s, flags=0x%x\n",
-	     (unsigned long long)block, nr,
-	     ((flags & OCFS2_BH_IGNORE_CACHE) || ignore_cache) ? "no" : "yes",
-	     flags);
+	trace_ocfs2_read_blocks_end((unsigned long long)block, nr,
+				    flags, ignore_cache);
 
 bail:
 
-	mlog_exit(status);
 	return status;
 }
 
@@ -408,13 +396,12 @@ int ocfs2_write_super_or_backup(struct ocfs2_super *osb,
 	int ret = 0;
 	struct ocfs2_dinode *di = (struct ocfs2_dinode *)bh->b_data;
 
-	mlog_entry_void();
-
 	BUG_ON(buffer_jbd(bh));
 	ocfs2_check_super_or_backup(osb->sb, bh->b_blocknr);
 
 	if (ocfs2_is_hard_readonly(osb) || ocfs2_is_soft_readonly(osb)) {
 		ret = -EROFS;
+		mlog_errno(ret);
 		goto out;
 	}
 
@@ -434,9 +421,9 @@ int ocfs2_write_super_or_backup(struct ocfs2_super *osb,
 	if (!buffer_uptodate(bh)) {
 		ret = -EIO;
 		put_bh(bh);
+		mlog_errno(ret);
 	}
 
 out:
-	mlog_exit(ret);
 	return ret;
 }
diff --git a/fs/ocfs2/cluster/heartbeat.c b/fs/ocfs2/cluster/heartbeat.c
index 1adab287bd24..643720209a98 100644
--- a/fs/ocfs2/cluster/heartbeat.c
+++ b/fs/ocfs2/cluster/heartbeat.c
@@ -1654,8 +1654,6 @@ static int o2hb_populate_slot_data(struct o2hb_region *reg)
 	struct o2hb_disk_slot *slot;
 	struct o2hb_disk_heartbeat_block *hb_block;
 
-	mlog_entry_void();
-
 	ret = o2hb_read_slots(reg, reg->hr_blocks);
 	if (ret) {
 		mlog_errno(ret);
@@ -1677,7 +1675,6 @@ static int o2hb_populate_slot_data(struct o2hb_region *reg)
 	}
 
 out:
-	mlog_exit(ret);
 	return ret;
 }
 
@@ -2278,7 +2275,7 @@ void o2hb_free_hb_set(struct config_group *group)
 	kfree(hs);
 }
 
-/* hb callback registration and issueing */
+/* hb callback registration and issuing */
 
 static struct o2hb_callback *hbcall_from_type(enum o2hb_callback_type type)
 {
diff --git a/fs/ocfs2/cluster/masklog.c b/fs/ocfs2/cluster/masklog.c
index 6c61771469af..07ac24fd9252 100644
--- a/fs/ocfs2/cluster/masklog.c
+++ b/fs/ocfs2/cluster/masklog.c
@@ -30,7 +30,7 @@
 
 struct mlog_bits mlog_and_bits = MLOG_BITS_RHS(MLOG_INITIAL_AND_MASK);
 EXPORT_SYMBOL_GPL(mlog_and_bits);
-struct mlog_bits mlog_not_bits = MLOG_BITS_RHS(MLOG_INITIAL_NOT_MASK);
+struct mlog_bits mlog_not_bits = MLOG_BITS_RHS(0);
 EXPORT_SYMBOL_GPL(mlog_not_bits);
 
 static ssize_t mlog_mask_show(u64 mask, char *buf)
@@ -80,8 +80,6 @@ struct mlog_attribute {
 }
 
 static struct mlog_attribute mlog_attrs[MLOG_MAX_BITS] = {
-	define_mask(ENTRY),
-	define_mask(EXIT),
 	define_mask(TCP),
 	define_mask(MSG),
 	define_mask(SOCKET),
@@ -93,27 +91,11 @@ static struct mlog_attribute mlog_attrs[MLOG_MAX_BITS] = {
 	define_mask(DLM_THREAD),
 	define_mask(DLM_MASTER),
 	define_mask(DLM_RECOVERY),
-	define_mask(AIO),
-	define_mask(JOURNAL),
-	define_mask(DISK_ALLOC),
-	define_mask(SUPER),
-	define_mask(FILE_IO),
-	define_mask(EXTENT_MAP),
 	define_mask(DLM_GLUE),
-	define_mask(BH_IO),
-	define_mask(UPTODATE),
-	define_mask(NAMEI),
-	define_mask(INODE),
 	define_mask(VOTE),
-	define_mask(DCACHE),
 	define_mask(CONN),
 	define_mask(QUORUM),
-	define_mask(EXPORT),
-	define_mask(XATTR),
-	define_mask(QUOTA),
-	define_mask(REFCOUNT),
 	define_mask(BASTS),
-	define_mask(RESERVATIONS),
 	define_mask(CLUSTER),
 	define_mask(ERROR),
 	define_mask(NOTICE),
diff --git a/fs/ocfs2/cluster/masklog.h b/fs/ocfs2/cluster/masklog.h
index 34d6544357d9..baa2b9ef7eef 100644
--- a/fs/ocfs2/cluster/masklog.h
+++ b/fs/ocfs2/cluster/masklog.h
@@ -82,41 +82,23 @@
 
 /* bits that are frequently given and infrequently matched in the low word */
 /* NOTE: If you add a flag, you need to also update masklog.c! */
-#define ML_ENTRY	0x0000000000000001ULL /* func call entry */
-#define ML_EXIT		0x0000000000000002ULL /* func call exit */
-#define ML_TCP		0x0000000000000004ULL /* net cluster/tcp.c */
-#define ML_MSG		0x0000000000000008ULL /* net network messages */
-#define ML_SOCKET	0x0000000000000010ULL /* net socket lifetime */
-#define ML_HEARTBEAT	0x0000000000000020ULL /* hb all heartbeat tracking */
-#define ML_HB_BIO	0x0000000000000040ULL /* hb io tracing */
-#define ML_DLMFS	0x0000000000000080ULL /* dlm user dlmfs */
-#define ML_DLM		0x0000000000000100ULL /* dlm general debugging */
-#define ML_DLM_DOMAIN	0x0000000000000200ULL /* dlm domain debugging */
-#define ML_DLM_THREAD	0x0000000000000400ULL /* dlm domain thread */
-#define ML_DLM_MASTER	0x0000000000000800ULL /* dlm master functions */
-#define ML_DLM_RECOVERY	0x0000000000001000ULL /* dlm master functions */
-#define ML_AIO		0x0000000000002000ULL /* ocfs2 aio read and write */
-#define ML_JOURNAL	0x0000000000004000ULL /* ocfs2 journalling functions */
-#define ML_DISK_ALLOC	0x0000000000008000ULL /* ocfs2 disk allocation */
-#define ML_SUPER	0x0000000000010000ULL /* ocfs2 mount / umount */
-#define ML_FILE_IO	0x0000000000020000ULL /* ocfs2 file I/O */
-#define ML_EXTENT_MAP	0x0000000000040000ULL /* ocfs2 extent map caching */
-#define ML_DLM_GLUE	0x0000000000080000ULL /* ocfs2 dlm glue layer */
-#define ML_BH_IO	0x0000000000100000ULL /* ocfs2 buffer I/O */
-#define ML_UPTODATE	0x0000000000200000ULL /* ocfs2 caching sequence #'s */
-#define ML_NAMEI	0x0000000000400000ULL /* ocfs2 directory / namespace */
-#define ML_INODE	0x0000000000800000ULL /* ocfs2 inode manipulation */
-#define ML_VOTE		0x0000000001000000ULL /* ocfs2 node messaging  */
-#define ML_DCACHE	0x0000000002000000ULL /* ocfs2 dcache operations */
-#define ML_CONN		0x0000000004000000ULL /* net connection management */
-#define ML_QUORUM	0x0000000008000000ULL /* net connection quorum */
-#define ML_EXPORT	0x0000000010000000ULL /* ocfs2 export operations */
-#define ML_XATTR	0x0000000020000000ULL /* ocfs2 extended attributes */
-#define ML_QUOTA	0x0000000040000000ULL /* ocfs2 quota operations */
-#define ML_REFCOUNT	0x0000000080000000ULL /* refcount tree operations */
-#define ML_BASTS	0x0000000100000000ULL /* dlmglue asts and basts */
-#define ML_RESERVATIONS	0x0000000200000000ULL /* ocfs2 alloc reservations */
-#define ML_CLUSTER	0x0000000400000000ULL /* cluster stack */
+#define ML_TCP		0x0000000000000001ULL /* net cluster/tcp.c */
+#define ML_MSG		0x0000000000000002ULL /* net network messages */
+#define ML_SOCKET	0x0000000000000004ULL /* net socket lifetime */
+#define ML_HEARTBEAT	0x0000000000000008ULL /* hb all heartbeat tracking */
+#define ML_HB_BIO	0x0000000000000010ULL /* hb io tracing */
+#define ML_DLMFS	0x0000000000000020ULL /* dlm user dlmfs */
+#define ML_DLM		0x0000000000000040ULL /* dlm general debugging */
+#define ML_DLM_DOMAIN	0x0000000000000080ULL /* dlm domain debugging */
+#define ML_DLM_THREAD	0x0000000000000100ULL /* dlm domain thread */
+#define ML_DLM_MASTER	0x0000000000000200ULL /* dlm master functions */
+#define ML_DLM_RECOVERY	0x0000000000000400ULL /* dlm master functions */
+#define ML_DLM_GLUE	0x0000000000000800ULL /* ocfs2 dlm glue layer */
+#define ML_VOTE		0x0000000000001000ULL /* ocfs2 node messaging  */
+#define ML_CONN		0x0000000000002000ULL /* net connection management */
+#define ML_QUORUM	0x0000000000004000ULL /* net connection quorum */
+#define ML_BASTS	0x0000000000008000ULL /* dlmglue asts and basts */
+#define ML_CLUSTER	0x0000000000010000ULL /* cluster stack */
 
 /* bits that are infrequently given and frequently matched in the high word */
 #define ML_ERROR	0x1000000000000000ULL /* sent to KERN_ERR */
@@ -124,7 +106,6 @@
 #define ML_KTHREAD	0x4000000000000000ULL /* kernel thread activity */
 
 #define MLOG_INITIAL_AND_MASK (ML_ERROR|ML_NOTICE)
-#define MLOG_INITIAL_NOT_MASK (ML_ENTRY|ML_EXIT)
 #ifndef MLOG_MASK_PREFIX
 #define MLOG_MASK_PREFIX 0
 #endif
@@ -222,58 +203,6 @@ extern struct mlog_bits mlog_and_bits, mlog_not_bits;
 		mlog(ML_ERROR, "status = %lld\n", (long long)_st);	\
 } while (0)
 
-#if defined(CONFIG_OCFS2_DEBUG_MASKLOG)
-#define mlog_entry(fmt, args...) do {					\
-	mlog(ML_ENTRY, "ENTRY:" fmt , ##args);				\
-} while (0)
-
-#define mlog_entry_void() do {						\
-	mlog(ML_ENTRY, "ENTRY:\n");					\
-} while (0)
-
-/*
- * We disable this for sparse.
- */
-#if !defined(__CHECKER__)
-#define mlog_exit(st) do {						     \
-	if (__builtin_types_compatible_p(typeof(st), unsigned long))	     \
-		mlog(ML_EXIT, "EXIT: %lu\n", (unsigned long) (st));	     \
-	else if (__builtin_types_compatible_p(typeof(st), signed long))      \
-		mlog(ML_EXIT, "EXIT: %ld\n", (signed long) (st));	     \
-	else if (__builtin_types_compatible_p(typeof(st), unsigned int)	     \
-		 || __builtin_types_compatible_p(typeof(st), unsigned short) \
-		 || __builtin_types_compatible_p(typeof(st), unsigned char)) \
-		mlog(ML_EXIT, "EXIT: %u\n", (unsigned int) (st));	     \
-	else if (__builtin_types_compatible_p(typeof(st), signed int)	     \
-		 || __builtin_types_compatible_p(typeof(st), signed short)   \
-		 || __builtin_types_compatible_p(typeof(st), signed char))   \
-		mlog(ML_EXIT, "EXIT: %d\n", (signed int) (st));		     \
-	else if (__builtin_types_compatible_p(typeof(st), long long))	     \
-		mlog(ML_EXIT, "EXIT: %lld\n", (long long) (st));	     \
-	else								     \
-		mlog(ML_EXIT, "EXIT: %llu\n", (unsigned long long) (st));    \
-} while (0)
-#else
-#define mlog_exit(st) do {						     \
-	mlog(ML_EXIT, "EXIT: %lld\n", (long long) (st));		     \
-} while (0)
-#endif
-
-#define mlog_exit_ptr(ptr) do {						\
-	mlog(ML_EXIT, "EXIT: %p\n", ptr);				\
-} while (0)
-
-#define mlog_exit_void() do {						\
-	mlog(ML_EXIT, "EXIT\n");					\
-} while (0)
-#else
-#define mlog_entry(...)  do { } while (0)
-#define mlog_entry_void(...)  do { } while (0)
-#define mlog_exit(...)  do { } while (0)
-#define mlog_exit_ptr(...)  do { } while (0)
-#define mlog_exit_void(...)  do { } while (0)
-#endif  /* defined(CONFIG_OCFS2_DEBUG_MASKLOG) */
-
 #define mlog_bug_on_msg(cond, fmt, args...) do {			\
 	if (cond) {							\
 		mlog(ML_ERROR, "bug expression: " #cond "\n");		\
diff --git a/fs/ocfs2/cluster/quorum.c b/fs/ocfs2/cluster/quorum.c
index a87366750f23..8f9cea1597af 100644
--- a/fs/ocfs2/cluster/quorum.c
+++ b/fs/ocfs2/cluster/quorum.c
@@ -89,7 +89,7 @@ static void o2quo_fence_self(void)
 	};
 }
 
-/* Indicate that a timeout occured on a hearbeat region write. The
+/* Indicate that a timeout occurred on a hearbeat region write. The
  * other nodes in the cluster may consider us dead at that time so we
  * want to "fence" ourselves so that we don't scribble on the disk
  * after they think they've recovered us. This can't solve all
@@ -261,7 +261,7 @@ void o2quo_hb_still_up(u8 node)
 	spin_unlock(&qs->qs_lock);
 }
 
-/* This is analagous to hb_up.  as a node's connection comes up we delay the
+/* This is analogous to hb_up.  as a node's connection comes up we delay the
  * quorum decision until we see it heartbeating.  the hold will be droped in
  * hb_up or hb_down.  it might be perpetuated by con_err until hb_down.  if
  * it's already heartbeating we we might be dropping a hold that conn_up got.
diff --git a/fs/ocfs2/cluster/tcp.c b/fs/ocfs2/cluster/tcp.c
index 3b11cb1e38fc..db5ee4b4f47a 100644
--- a/fs/ocfs2/cluster/tcp.c
+++ b/fs/ocfs2/cluster/tcp.c
@@ -210,10 +210,6 @@ static inline void o2net_set_func_stop_time(struct o2net_sock_container *sc)
 	sc->sc_tv_func_stop = ktime_get();
 }
 
-static ktime_t o2net_get_func_run_time(struct o2net_sock_container *sc)
-{
-	return ktime_sub(sc->sc_tv_func_stop, sc->sc_tv_func_start);
-}
 #else  /* CONFIG_DEBUG_FS */
 # define o2net_init_nst(a, b, c, d, e)
 # define o2net_set_nst_sock_time(a)
@@ -227,10 +223,14 @@ static ktime_t o2net_get_func_run_time(struct o2net_sock_container *sc)
 # define o2net_set_advance_stop_time(a)
 # define o2net_set_func_start_time(a)
 # define o2net_set_func_stop_time(a)
-# define o2net_get_func_run_time(a)		(ktime_t)0
 #endif /* CONFIG_DEBUG_FS */
 
 #ifdef CONFIG_OCFS2_FS_STATS
+static ktime_t o2net_get_func_run_time(struct o2net_sock_container *sc)
+{
+	return ktime_sub(sc->sc_tv_func_stop, sc->sc_tv_func_start);
+}
+
 static void o2net_update_send_stats(struct o2net_send_tracking *nst,
 				    struct o2net_sock_container *sc)
 {
@@ -565,7 +565,7 @@ static void o2net_set_nn_state(struct o2net_node *nn,
 	 * the work queue actually being up. */
 	if (!valid && o2net_wq) {
 		unsigned long delay;
-		/* delay if we're withing a RECONNECT_DELAY of the
+		/* delay if we're within a RECONNECT_DELAY of the
 		 * last attempt */
 		delay = (nn->nn_last_connect_attempt +
 			 msecs_to_jiffies(o2net_reconnect_delay()))
diff --git a/fs/ocfs2/dcache.c b/fs/ocfs2/dcache.c
index 7eb90403fc8a..e5ba34818332 100644
--- a/fs/ocfs2/dcache.c
+++ b/fs/ocfs2/dcache.c
@@ -28,7 +28,6 @@
 #include <linux/slab.h>
 #include <linux/namei.h>
 
-#define MLOG_MASK_PREFIX ML_DCACHE
 #include <cluster/masklog.h>
 
 #include "ocfs2.h"
@@ -39,6 +38,7 @@
 #include "file.h"
 #include "inode.h"
 #include "super.h"
+#include "ocfs2_trace.h"
 
 void ocfs2_dentry_attach_gen(struct dentry *dentry)
 {
@@ -62,8 +62,8 @@ static int ocfs2_dentry_revalidate(struct dentry *dentry,
 	inode = dentry->d_inode;
 	osb = OCFS2_SB(dentry->d_sb);
 
-	mlog_entry("(0x%p, '%.*s')\n", dentry,
-		   dentry->d_name.len, dentry->d_name.name);
+	trace_ocfs2_dentry_revalidate(dentry, dentry->d_name.len,
+				      dentry->d_name.name);
 
 	/* For a negative dentry -
 	 * check the generation number of the parent and compare with the
@@ -73,9 +73,10 @@ static int ocfs2_dentry_revalidate(struct dentry *dentry,
 		unsigned long gen = (unsigned long) dentry->d_fsdata;
 		unsigned long pgen =
 			OCFS2_I(dentry->d_parent->d_inode)->ip_dir_lock_gen;
-		mlog(0, "negative dentry: %.*s parent gen: %lu "
-			"dentry gen: %lu\n",
-			dentry->d_name.len, dentry->d_name.name, pgen, gen);
+
+		trace_ocfs2_dentry_revalidate_negative(dentry->d_name.len,
+						       dentry->d_name.name,
+						       pgen, gen);
 		if (gen != pgen)
 			goto bail;
 		goto valid;
@@ -90,8 +91,8 @@ static int ocfs2_dentry_revalidate(struct dentry *dentry,
 	/* did we or someone else delete this inode? */
 	if (OCFS2_I(inode)->ip_flags & OCFS2_INODE_DELETED) {
 		spin_unlock(&OCFS2_I(inode)->ip_lock);
-		mlog(0, "inode (%llu) deleted, returning false\n",
-		     (unsigned long long)OCFS2_I(inode)->ip_blkno);
+		trace_ocfs2_dentry_revalidate_delete(
+				(unsigned long long)OCFS2_I(inode)->ip_blkno);
 		goto bail;
 	}
 	spin_unlock(&OCFS2_I(inode)->ip_lock);
@@ -101,10 +102,9 @@ static int ocfs2_dentry_revalidate(struct dentry *dentry,
 	 * inode nlink hits zero, it never goes back.
 	 */
 	if (inode->i_nlink == 0) {
-		mlog(0, "Inode %llu orphaned, returning false "
-		     "dir = %d\n",
-		     (unsigned long long)OCFS2_I(inode)->ip_blkno,
-		     S_ISDIR(inode->i_mode));
+		trace_ocfs2_dentry_revalidate_orphaned(
+			(unsigned long long)OCFS2_I(inode)->ip_blkno,
+			S_ISDIR(inode->i_mode));
 		goto bail;
 	}
 
@@ -113,9 +113,8 @@ static int ocfs2_dentry_revalidate(struct dentry *dentry,
 	 * redo it.
 	 */
 	if (!dentry->d_fsdata) {
-		mlog(0, "Inode %llu doesn't have dentry lock, "
-		     "returning false\n",
-		     (unsigned long long)OCFS2_I(inode)->ip_blkno);
+		trace_ocfs2_dentry_revalidate_nofsdata(
+				(unsigned long long)OCFS2_I(inode)->ip_blkno);
 		goto bail;
 	}
 
@@ -123,8 +122,7 @@ valid:
 	ret = 1;
 
 bail:
-	mlog_exit(ret);
-
+	trace_ocfs2_dentry_revalidate_ret(ret);
 	return ret;
 }
 
@@ -181,8 +179,8 @@ struct dentry *ocfs2_find_local_alias(struct inode *inode,
 
 		spin_lock(&dentry->d_lock);
 		if (ocfs2_match_dentry(dentry, parent_blkno, skip_unhashed)) {
-			mlog(0, "dentry found: %.*s\n",
-			     dentry->d_name.len, dentry->d_name.name);
+			trace_ocfs2_find_local_alias(dentry->d_name.len,
+						     dentry->d_name.name);
 
 			dget_dlock(dentry);
 			spin_unlock(&dentry->d_lock);
@@ -240,9 +238,8 @@ int ocfs2_dentry_attach_lock(struct dentry *dentry,
 	struct dentry *alias;
 	struct ocfs2_dentry_lock *dl = dentry->d_fsdata;
 
-	mlog(0, "Attach \"%.*s\", parent %llu, fsdata: %p\n",
-	     dentry->d_name.len, dentry->d_name.name,
-	     (unsigned long long)parent_blkno, dl);
+	trace_ocfs2_dentry_attach_lock(dentry->d_name.len, dentry->d_name.name,
+				       (unsigned long long)parent_blkno, dl);
 
 	/*
 	 * Negative dentry. We ignore these for now.
@@ -292,7 +289,9 @@ int ocfs2_dentry_attach_lock(struct dentry *dentry,
 				(unsigned long long)parent_blkno,
 				(unsigned long long)dl->dl_parent_blkno);
 
-		mlog(0, "Found: %s\n", dl->dl_lockres.l_name);
+		trace_ocfs2_dentry_attach_lock_found(dl->dl_lockres.l_name,
+				(unsigned long long)parent_blkno,
+				(unsigned long long)OCFS2_I(inode)->ip_blkno);
 
 		goto out_attach;
 	}
diff --git a/fs/ocfs2/dir.c b/fs/ocfs2/dir.c
index f97b6f1c61dd..9fe5b8fd658f 100644
--- a/fs/ocfs2/dir.c
+++ b/fs/ocfs2/dir.c
@@ -43,7 +43,6 @@
 #include <linux/quotaops.h>
 #include <linux/sort.h>
 
-#define MLOG_MASK_PREFIX ML_NAMEI
 #include <cluster/masklog.h>
 
 #include "ocfs2.h"
@@ -61,6 +60,7 @@
 #include "super.h"
 #include "sysfile.h"
 #include "uptodate.h"
+#include "ocfs2_trace.h"
 
 #include "buffer_head_io.h"
 
@@ -322,21 +322,23 @@ static int ocfs2_check_dir_entry(struct inode * dir,
 	const char *error_msg = NULL;
 	const int rlen = le16_to_cpu(de->rec_len);
 
-	if (rlen < OCFS2_DIR_REC_LEN(1))
+	if (unlikely(rlen < OCFS2_DIR_REC_LEN(1)))
 		error_msg = "rec_len is smaller than minimal";
-	else if (rlen % 4 != 0)
+	else if (unlikely(rlen % 4 != 0))
 		error_msg = "rec_len % 4 != 0";
-	else if (rlen < OCFS2_DIR_REC_LEN(de->name_len))
+	else if (unlikely(rlen < OCFS2_DIR_REC_LEN(de->name_len)))
 		error_msg = "rec_len is too small for name_len";
-	else if (((char *) de - bh->b_data) + rlen > dir->i_sb->s_blocksize)
+	else if (unlikely(
+		 ((char *) de - bh->b_data) + rlen > dir->i_sb->s_blocksize))
 		error_msg = "directory entry across blocks";
 
-	if (error_msg != NULL)
+	if (unlikely(error_msg != NULL))
 		mlog(ML_ERROR, "bad entry in directory #%llu: %s - "
 		     "offset=%lu, inode=%llu, rec_len=%d, name_len=%d\n",
 		     (unsigned long long)OCFS2_I(dir)->ip_blkno, error_msg,
 		     offset, (unsigned long long)le64_to_cpu(de->inode), rlen,
 		     de->name_len);
+
 	return error_msg == NULL ? 1 : 0;
 }
 
@@ -367,8 +369,6 @@ static inline int ocfs2_search_dirblock(struct buffer_head *bh,
 	int de_len;
 	int ret = 0;
 
-	mlog_entry_void();
-
 	de_buf = first_de;
 	dlimit = de_buf + bytes;
 
@@ -402,7 +402,7 @@ static inline int ocfs2_search_dirblock(struct buffer_head *bh,
 	}
 
 bail:
-	mlog_exit(ret);
+	trace_ocfs2_search_dirblock(ret);
 	return ret;
 }
 
@@ -447,8 +447,7 @@ static int ocfs2_validate_dir_block(struct super_block *sb,
 	 * We don't validate dirents here, that's handled
 	 * in-place when the code walks them.
 	 */
-	mlog(0, "Validating dirblock %llu\n",
-	     (unsigned long long)bh->b_blocknr);
+	trace_ocfs2_validate_dir_block((unsigned long long)bh->b_blocknr);
 
 	BUG_ON(!buffer_uptodate(bh));
 
@@ -706,8 +705,6 @@ static struct buffer_head *ocfs2_find_entry_el(const char *name, int namelen,
 	int num = 0;
 	int nblocks, i, err;
 
-	mlog_entry_void();
-
 	sb = dir->i_sb;
 
 	nblocks = i_size_read(dir) >> sb->s_blocksize_bits;
@@ -788,7 +785,7 @@ cleanup_and_exit:
 	for (; ra_ptr < ra_max; ra_ptr++)
 		brelse(bh_use[ra_ptr]);
 
-	mlog_exit_ptr(ret);
+	trace_ocfs2_find_entry_el(ret);
 	return ret;
 }
 
@@ -950,11 +947,9 @@ static int ocfs2_dx_dir_search(const char *name, int namelen,
 		goto out;
 	}
 
-	mlog(0, "Dir %llu: name: \"%.*s\", lookup of hash: %u.0x%x "
-	     "returns: %llu\n",
-	     (unsigned long long)OCFS2_I(dir)->ip_blkno,
-	     namelen, name, hinfo->major_hash, hinfo->minor_hash,
-	     (unsigned long long)phys);
+	trace_ocfs2_dx_dir_search((unsigned long long)OCFS2_I(dir)->ip_blkno,
+				  namelen, name, hinfo->major_hash,
+				  hinfo->minor_hash, (unsigned long long)phys);
 
 	ret = ocfs2_read_dx_leaf(dir, phys, &dx_leaf_bh);
 	if (ret) {
@@ -964,9 +959,9 @@ static int ocfs2_dx_dir_search(const char *name, int namelen,
 
 	dx_leaf = (struct ocfs2_dx_leaf *) dx_leaf_bh->b_data;
 
-	mlog(0, "leaf info: num_used: %d, count: %d\n",
-	     le16_to_cpu(dx_leaf->dl_list.de_num_used),
-	     le16_to_cpu(dx_leaf->dl_list.de_count));
+	trace_ocfs2_dx_dir_search_leaf_info(
+			le16_to_cpu(dx_leaf->dl_list.de_num_used),
+			le16_to_cpu(dx_leaf->dl_list.de_count));
 
 	entry_list = &dx_leaf->dl_list;
 
@@ -1166,8 +1161,6 @@ static int __ocfs2_delete_entry(handle_t *handle, struct inode *dir,
 	int i, status = -ENOENT;
 	ocfs2_journal_access_func access = ocfs2_journal_access_db;
 
-	mlog_entry("(0x%p, 0x%p, 0x%p, 0x%p)\n", handle, dir, de_del, bh);
-
 	if (OCFS2_I(dir)->ip_dyn_features & OCFS2_INLINE_DATA_FL)
 		access = ocfs2_journal_access_di;
 
@@ -1202,7 +1195,6 @@ static int __ocfs2_delete_entry(handle_t *handle, struct inode *dir,
 		de = (struct ocfs2_dir_entry *)((char *)de + le16_to_cpu(de->rec_len));
 	}
 bail:
-	mlog_exit(status);
 	return status;
 }
 
@@ -1348,8 +1340,8 @@ static int ocfs2_delete_entry_dx(handle_t *handle, struct inode *dir,
 		}
 	}
 
-	mlog(0, "Dir %llu: delete entry at index: %d\n",
-	     (unsigned long long)OCFS2_I(dir)->ip_blkno, index);
+	trace_ocfs2_delete_entry_dx((unsigned long long)OCFS2_I(dir)->ip_blkno,
+				    index);
 
 	ret = __ocfs2_delete_entry(handle, dir, lookup->dl_entry,
 				   leaf_bh, leaf_bh->b_data, leaf_bh->b_size);
@@ -1632,8 +1624,6 @@ int __ocfs2_add_entry(handle_t *handle,
 	struct buffer_head *insert_bh = lookup->dl_leaf_bh;
 	char *data_start = insert_bh->b_data;
 
-	mlog_entry_void();
-
 	if (!namelen)
 		return -EINVAL;
 
@@ -1765,8 +1755,9 @@ int __ocfs2_add_entry(handle_t *handle,
 	 * from ever getting here. */
 	retval = -ENOSPC;
 bail:
+	if (retval)
+		mlog_errno(retval);
 
-	mlog_exit(retval);
 	return retval;
 }
 
@@ -2028,8 +2019,7 @@ int ocfs2_readdir(struct file * filp, void * dirent, filldir_t filldir)
 	struct inode *inode = filp->f_path.dentry->d_inode;
 	int lock_level = 0;
 
-	mlog_entry("dirino=%llu\n",
-		   (unsigned long long)OCFS2_I(inode)->ip_blkno);
+	trace_ocfs2_readdir((unsigned long long)OCFS2_I(inode)->ip_blkno);
 
 	error = ocfs2_inode_lock_atime(inode, filp->f_vfsmnt, &lock_level);
 	if (lock_level && error >= 0) {
@@ -2051,9 +2041,10 @@ int ocfs2_readdir(struct file * filp, void * dirent, filldir_t filldir)
 				      dirent, filldir, NULL);
 
 	ocfs2_inode_unlock(inode, lock_level);
+	if (error)
+		mlog_errno(error);
 
 bail_nolock:
-	mlog_exit(error);
 
 	return error;
 }
@@ -2069,8 +2060,8 @@ int ocfs2_find_files_on_disk(const char *name,
 {
 	int status = -ENOENT;
 
-	mlog(0, "name=%.*s, blkno=%p, inode=%llu\n", namelen, name, blkno,
-	     (unsigned long long)OCFS2_I(inode)->ip_blkno);
+	trace_ocfs2_find_files_on_disk(namelen, name, blkno,
+				(unsigned long long)OCFS2_I(inode)->ip_blkno);
 
 	status = ocfs2_find_entry(name, namelen, inode, lookup);
 	if (status)
@@ -2114,8 +2105,8 @@ int ocfs2_check_dir_for_entry(struct inode *dir,
 	int ret;
 	struct ocfs2_dir_lookup_result lookup = { NULL, };
 
-	mlog_entry("dir %llu, name '%.*s'\n",
-		   (unsigned long long)OCFS2_I(dir)->ip_blkno, namelen, name);
+	trace_ocfs2_check_dir_for_entry(
+		(unsigned long long)OCFS2_I(dir)->ip_blkno, namelen, name);
 
 	ret = -EEXIST;
 	if (ocfs2_find_entry(name, namelen, dir, &lookup) == 0)
@@ -2125,7 +2116,8 @@ int ocfs2_check_dir_for_entry(struct inode *dir,
 bail:
 	ocfs2_free_dir_lookup_result(&lookup);
 
-	mlog_exit(ret);
+	if (ret)
+		mlog_errno(ret);
 	return ret;
 }
 
@@ -2324,8 +2316,6 @@ static int ocfs2_fill_new_dir_el(struct ocfs2_super *osb,
 	struct buffer_head *new_bh = NULL;
 	struct ocfs2_dir_entry *de;
 
-	mlog_entry_void();
-
 	if (ocfs2_new_dir_wants_trailer(inode))
 		size = ocfs2_dir_trailer_blk_off(parent->i_sb);
 
@@ -2380,7 +2370,6 @@ static int ocfs2_fill_new_dir_el(struct ocfs2_super *osb,
 bail:
 	brelse(new_bh);
 
-	mlog_exit(status);
 	return status;
 }
 
@@ -2409,9 +2398,9 @@ static int ocfs2_dx_dir_attach_index(struct ocfs2_super *osb,
 		goto out;
 	}
 
-	mlog(0, "Dir %llu, attach new index block: %llu\n",
-	     (unsigned long long)OCFS2_I(dir)->ip_blkno,
-	     (unsigned long long)dr_blkno);
+	trace_ocfs2_dx_dir_attach_index(
+				(unsigned long long)OCFS2_I(dir)->ip_blkno,
+				(unsigned long long)dr_blkno);
 
 	dx_root_bh = sb_getblk(osb->sb, dr_blkno);
 	if (dx_root_bh == NULL) {
@@ -2511,11 +2500,10 @@ static int ocfs2_dx_dir_format_cluster(struct ocfs2_super *osb,
 		dx_leaf->dl_list.de_count =
 			cpu_to_le16(ocfs2_dx_entries_per_leaf(osb->sb));
 
-		mlog(0,
-		     "Dir %llu, format dx_leaf: %llu, entry count: %u\n",
-		     (unsigned long long)OCFS2_I(dir)->ip_blkno,
-		     (unsigned long long)bh->b_blocknr,
-		     le16_to_cpu(dx_leaf->dl_list.de_count));
+		trace_ocfs2_dx_dir_format_cluster(
+				(unsigned long long)OCFS2_I(dir)->ip_blkno,
+				(unsigned long long)bh->b_blocknr,
+				le16_to_cpu(dx_leaf->dl_list.de_count));
 
 		ocfs2_journal_dirty(handle, bh);
 	}
@@ -2759,12 +2747,11 @@ static void ocfs2_dx_dir_index_root_block(struct inode *dir,
 
 		ocfs2_dx_dir_name_hash(dir, de->name, de->name_len, &hinfo);
 
-		mlog(0,
-		     "dir: %llu, major: 0x%x minor: 0x%x, index: %u, name: %.*s\n",
-		     (unsigned long long)dir->i_ino, hinfo.major_hash,
-		     hinfo.minor_hash,
-		     le16_to_cpu(dx_root->dr_entries.de_num_used),
-		     de->name_len, de->name);
+		trace_ocfs2_dx_dir_index_root_block(
+				(unsigned long long)dir->i_ino,
+				hinfo.major_hash, hinfo.minor_hash,
+				de->name_len, de->name,
+				le16_to_cpu(dx_root->dr_entries.de_num_used));
 
 		ocfs2_dx_entry_list_insert(&dx_root->dr_entries, &hinfo,
 					   dirent_blk);
@@ -3235,7 +3222,6 @@ static int ocfs2_do_extend_dir(struct super_block *sb,
 bail:
 	if (did_quota && status < 0)
 		dquot_free_space_nodirty(dir, ocfs2_clusters_to_bytes(sb, 1));
-	mlog_exit(status);
 	return status;
 }
 
@@ -3270,8 +3256,6 @@ static int ocfs2_extend_dir(struct ocfs2_super *osb,
 	struct ocfs2_extent_tree et;
 	struct buffer_head *dx_root_bh = lookup->dl_dx_root_bh;
 
-	mlog_entry_void();
-
 	if (OCFS2_I(dir)->ip_dyn_features & OCFS2_INLINE_DATA_FL) {
 		/*
 		 * This would be a code error as an inline directory should
@@ -3320,8 +3304,8 @@ static int ocfs2_extend_dir(struct ocfs2_super *osb,
 	down_write(&OCFS2_I(dir)->ip_alloc_sem);
 	drop_alloc_sem = 1;
 	dir_i_size = i_size_read(dir);
-	mlog(0, "extending dir %llu (i_size = %lld)\n",
-	     (unsigned long long)OCFS2_I(dir)->ip_blkno, dir_i_size);
+	trace_ocfs2_extend_dir((unsigned long long)OCFS2_I(dir)->ip_blkno,
+			       dir_i_size);
 
 	/* dir->i_size is always block aligned. */
 	spin_lock(&OCFS2_I(dir)->ip_lock);
@@ -3436,7 +3420,6 @@ bail:
 
 	brelse(new_bh);
 
-	mlog_exit(status);
 	return status;
 }
 
@@ -3583,8 +3566,9 @@ next:
 	status = 0;
 bail:
 	brelse(bh);
+	if (status)
+		mlog_errno(status);
 
-	mlog_exit(status);
 	return status;
 }
 
@@ -3815,9 +3799,9 @@ static int ocfs2_dx_dir_rebalance(struct ocfs2_super *osb, struct inode *dir,
 	struct ocfs2_dx_root_block *dx_root;
 	struct ocfs2_dx_leaf *tmp_dx_leaf = NULL;
 
-	mlog(0, "DX Dir: %llu, rebalance leaf leaf_blkno: %llu insert: %u\n",
-	     (unsigned long long)OCFS2_I(dir)->ip_blkno,
-	     (unsigned long long)leaf_blkno, insert_hash);
+	trace_ocfs2_dx_dir_rebalance((unsigned long long)OCFS2_I(dir)->ip_blkno,
+				     (unsigned long long)leaf_blkno,
+				     insert_hash);
 
 	ocfs2_init_dx_root_extent_tree(&et, INODE_CACHE(dir), dx_root_bh);
 
@@ -3897,8 +3881,7 @@ static int ocfs2_dx_dir_rebalance(struct ocfs2_super *osb, struct inode *dir,
 		goto  out_commit;
 	}
 
-	mlog(0, "Split leaf (%u) at %u, insert major hash is %u\n",
-	     leaf_cpos, split_hash, insert_hash);
+	trace_ocfs2_dx_dir_rebalance_split(leaf_cpos, split_hash, insert_hash);
 
 	/*
 	 * We have to carefully order operations here. There are items
@@ -4355,8 +4338,8 @@ int ocfs2_prepare_dir_for_insert(struct ocfs2_super *osb,
 	unsigned int blocks_wanted = 1;
 	struct buffer_head *bh = NULL;
 
-	mlog(0, "getting ready to insert namelen %d into dir %llu\n",
-	     namelen, (unsigned long long)OCFS2_I(dir)->ip_blkno);
+	trace_ocfs2_prepare_dir_for_insert(
+		(unsigned long long)OCFS2_I(dir)->ip_blkno, namelen);
 
 	if (!namelen) {
 		ret = -EINVAL;
diff --git a/fs/ocfs2/dlm/dlmconvert.c b/fs/ocfs2/dlm/dlmconvert.c
index 9f30491e5e88..29a886d1e82c 100644
--- a/fs/ocfs2/dlm/dlmconvert.c
+++ b/fs/ocfs2/dlm/dlmconvert.c
@@ -128,8 +128,8 @@ static enum dlm_status __dlmconvert_master(struct dlm_ctxt *dlm,
 
 	assert_spin_locked(&res->spinlock);
 
-	mlog_entry("type=%d, convert_type=%d, new convert_type=%d\n",
-		   lock->ml.type, lock->ml.convert_type, type);
+	mlog(0, "type=%d, convert_type=%d, new convert_type=%d\n",
+	     lock->ml.type, lock->ml.convert_type, type);
 
 	spin_lock(&lock->spinlock);
 
@@ -353,7 +353,7 @@ static enum dlm_status dlm_send_remote_convert_request(struct dlm_ctxt *dlm,
 	struct kvec vec[2];
 	size_t veclen = 1;
 
-	mlog_entry("%.*s\n", res->lockname.len, res->lockname.name);
+	mlog(0, "%.*s\n", res->lockname.len, res->lockname.name);
 
 	memset(&convert, 0, sizeof(struct dlm_convert_lock));
 	convert.node_idx = dlm->node_num;
diff --git a/fs/ocfs2/dlm/dlmdomain.c b/fs/ocfs2/dlm/dlmdomain.c
index 7e38a072d720..7540a492eaba 100644
--- a/fs/ocfs2/dlm/dlmdomain.c
+++ b/fs/ocfs2/dlm/dlmdomain.c
@@ -188,7 +188,7 @@ struct dlm_lock_resource * __dlm_lookup_lockres_full(struct dlm_ctxt *dlm,
 	struct hlist_head *bucket;
 	struct hlist_node *list;
 
-	mlog_entry("%.*s\n", len, name);
+	mlog(0, "%.*s\n", len, name);
 
 	assert_spin_locked(&dlm->spinlock);
 
@@ -222,7 +222,7 @@ struct dlm_lock_resource * __dlm_lookup_lockres(struct dlm_ctxt *dlm,
 {
 	struct dlm_lock_resource *res = NULL;
 
-	mlog_entry("%.*s\n", len, name);
+	mlog(0, "%.*s\n", len, name);
 
 	assert_spin_locked(&dlm->spinlock);
 
@@ -531,7 +531,7 @@ static int dlm_exit_domain_handler(struct o2net_msg *msg, u32 len, void *data,
 	unsigned int node;
 	struct dlm_exit_domain *exit_msg = (struct dlm_exit_domain *) msg->buf;
 
-	mlog_entry("%p %u %p", msg, len, data);
+	mlog(0, "%p %u %p", msg, len, data);
 
 	if (!dlm_grab(dlm))
 		return 0;
@@ -926,9 +926,10 @@ static int dlm_assert_joined_handler(struct o2net_msg *msg, u32 len, void *data,
 }
 
 static int dlm_match_regions(struct dlm_ctxt *dlm,
-			     struct dlm_query_region *qr)
+			     struct dlm_query_region *qr,
+			     char *local, int locallen)
 {
-	char *local = NULL, *remote = qr->qr_regions;
+	char *remote = qr->qr_regions;
 	char *l, *r;
 	int localnr, i, j, foundit;
 	int status = 0;
@@ -957,13 +958,8 @@ static int dlm_match_regions(struct dlm_ctxt *dlm,
 		r += O2HB_MAX_REGION_NAME_LEN;
 	}
 
-	local = kmalloc(sizeof(qr->qr_regions), GFP_ATOMIC);
-	if (!local) {
-		status = -ENOMEM;
-		goto bail;
-	}
-
-	localnr = o2hb_get_all_regions(local, O2NM_MAX_REGIONS);
+	localnr = min(O2NM_MAX_REGIONS, locallen/O2HB_MAX_REGION_NAME_LEN);
+	localnr = o2hb_get_all_regions(local, (u8)localnr);
 
 	/* compare local regions with remote */
 	l = local;
@@ -1012,8 +1008,6 @@ static int dlm_match_regions(struct dlm_ctxt *dlm,
 	}
 
 bail:
-	kfree(local);
-
 	return status;
 }
 
@@ -1075,6 +1069,7 @@ static int dlm_query_region_handler(struct o2net_msg *msg, u32 len,
 {
 	struct dlm_query_region *qr;
 	struct dlm_ctxt *dlm = NULL;
+	char *local = NULL;
 	int status = 0;
 	int locked = 0;
 
@@ -1083,6 +1078,13 @@ static int dlm_query_region_handler(struct o2net_msg *msg, u32 len,
 	mlog(0, "Node %u queries hb regions on domain %s\n", qr->qr_node,
 	     qr->qr_domain);
 
+	/* buffer used in dlm_mast_regions() */
+	local = kmalloc(sizeof(qr->qr_regions), GFP_KERNEL);
+	if (!local) {
+		status = -ENOMEM;
+		goto bail;
+	}
+
 	status = -EINVAL;
 
 	spin_lock(&dlm_domain_lock);
@@ -1112,13 +1114,15 @@ static int dlm_query_region_handler(struct o2net_msg *msg, u32 len,
 		goto bail;
 	}
 
-	status = dlm_match_regions(dlm, qr);
+	status = dlm_match_regions(dlm, qr, local, sizeof(qr->qr_regions));
 
 bail:
 	if (locked)
 		spin_unlock(&dlm->spinlock);
 	spin_unlock(&dlm_domain_lock);
 
+	kfree(local);
+
 	return status;
 }
 
@@ -1553,7 +1557,7 @@ static int dlm_try_to_join_domain(struct dlm_ctxt *dlm)
 	struct domain_join_ctxt *ctxt;
 	enum dlm_query_join_response_code response = JOIN_DISALLOW;
 
-	mlog_entry("%p", dlm);
+	mlog(0, "%p", dlm);
 
 	ctxt = kzalloc(sizeof(*ctxt), GFP_KERNEL);
 	if (!ctxt) {
diff --git a/fs/ocfs2/dlm/dlmlock.c b/fs/ocfs2/dlm/dlmlock.c
index 7009292aac5a..8d39e0fd66f7 100644
--- a/fs/ocfs2/dlm/dlmlock.c
+++ b/fs/ocfs2/dlm/dlmlock.c
@@ -128,7 +128,7 @@ static enum dlm_status dlmlock_master(struct dlm_ctxt *dlm,
 	int call_ast = 0, kick_thread = 0;
 	enum dlm_status status = DLM_NORMAL;
 
-	mlog_entry("type=%d\n", lock->ml.type);
+	mlog(0, "type=%d\n", lock->ml.type);
 
 	spin_lock(&res->spinlock);
 	/* if called from dlm_create_lock_handler, need to
@@ -227,8 +227,8 @@ static enum dlm_status dlmlock_remote(struct dlm_ctxt *dlm,
 	enum dlm_status status = DLM_DENIED;
 	int lockres_changed = 1;
 
-	mlog_entry("type=%d\n", lock->ml.type);
-	mlog(0, "lockres %.*s, flags = 0x%x\n", res->lockname.len,
+	mlog(0, "type=%d, lockres %.*s, flags = 0x%x\n",
+	     lock->ml.type, res->lockname.len,
 	     res->lockname.name, flags);
 
 	spin_lock(&res->spinlock);
@@ -308,8 +308,6 @@ static enum dlm_status dlm_send_remote_lock_request(struct dlm_ctxt *dlm,
 	int tmpret, status = 0;
 	enum dlm_status ret;
 
-	mlog_entry_void();
-
 	memset(&create, 0, sizeof(create));
 	create.node_idx = dlm->node_num;
 	create.requested_type = lock->ml.type;
@@ -477,8 +475,6 @@ int dlm_create_lock_handler(struct o2net_msg *msg, u32 len, void *data,
 
 	BUG_ON(!dlm);
 
-	mlog_entry_void();
-
 	if (!dlm_grab(dlm))
 		return DLM_REJECTED;
 
diff --git a/fs/ocfs2/dlm/dlmmaster.c b/fs/ocfs2/dlm/dlmmaster.c
index 59f0f6bdfc62..fede57ed005f 100644
--- a/fs/ocfs2/dlm/dlmmaster.c
+++ b/fs/ocfs2/dlm/dlmmaster.c
@@ -426,8 +426,6 @@ static void dlm_mle_release(struct kref *kref)
 	struct dlm_master_list_entry *mle;
 	struct dlm_ctxt *dlm;
 
-	mlog_entry_void();
-
 	mle = container_of(kref, struct dlm_master_list_entry, mle_refs);
 	dlm = mle->dlm;
 
@@ -810,7 +808,7 @@ lookup:
 				dlm_mle_detach_hb_events(dlm, mle);
 			dlm_put_mle(mle);
 			mle = NULL;
-			/* this is lame, but we cant wait on either
+			/* this is lame, but we can't wait on either
 			 * the mle or lockres waitqueue here */
 			if (mig)
 				msleep(100);
@@ -845,7 +843,7 @@ lookup:
 
 	/* finally add the lockres to its hash bucket */
 	__dlm_insert_lockres(dlm, res);
-	/* since this lockres is new it doesnt not require the spinlock */
+	/* since this lockres is new it doesn't not require the spinlock */
 	dlm_lockres_grab_inflight_ref_new(dlm, res);
 
 	/* if this node does not become the master make sure to drop
@@ -3120,8 +3118,6 @@ static int dlm_add_migration_mle(struct dlm_ctxt *dlm,
 
 	*oldmle = NULL;
 
-	mlog_entry_void();
-
 	assert_spin_locked(&dlm->spinlock);
 	assert_spin_locked(&dlm->master_lock);
 
@@ -3261,7 +3257,7 @@ void dlm_clean_master_list(struct dlm_ctxt *dlm, u8 dead_node)
 	struct hlist_node *list;
 	unsigned int i;
 
-	mlog_entry("dlm=%s, dead node=%u\n", dlm->name, dead_node);
+	mlog(0, "dlm=%s, dead node=%u\n", dlm->name, dead_node);
 top:
 	assert_spin_locked(&dlm->spinlock);
 
diff --git a/fs/ocfs2/dlm/dlmrecovery.c b/fs/ocfs2/dlm/dlmrecovery.c
index aaaffbcbe916..f1beb6fc254d 100644
--- a/fs/ocfs2/dlm/dlmrecovery.c
+++ b/fs/ocfs2/dlm/dlmrecovery.c
@@ -727,7 +727,6 @@ static int dlm_remaster_locks(struct dlm_ctxt *dlm, u8 dead_node)
 	if (destroy)
 		dlm_destroy_recovery_area(dlm, dead_node);
 
-	mlog_exit(status);
 	return status;
 }
 
@@ -1496,9 +1495,9 @@ leave:
 			kfree(buf);
 		if (item)
 			kfree(item);
+		mlog_errno(ret);
 	}
 
-	mlog_exit(ret);
 	return ret;
 }
 
@@ -1567,7 +1566,6 @@ leave:
 		dlm_lockres_put(res);
 	}
 	kfree(data);
-	mlog_exit(ret);
 }
 
 
@@ -1986,7 +1984,6 @@ leave:
 			dlm_lock_put(newlock);
 	}
 
-	mlog_exit(ret);
 	return ret;
 }
 
@@ -2083,8 +2080,6 @@ static void dlm_finish_local_lockres_recovery(struct dlm_ctxt *dlm,
 	struct hlist_head *bucket;
 	struct dlm_lock_resource *res, *next;
 
-	mlog_entry_void();
-
 	assert_spin_locked(&dlm->spinlock);
 
 	list_for_each_entry_safe(res, next, &dlm->reco.resources, recovering) {
@@ -2607,8 +2602,6 @@ static int dlm_send_begin_reco_message(struct dlm_ctxt *dlm, u8 dead_node)
 	int nodenum;
 	int status;
 
-	mlog_entry("%u\n", dead_node);
-
 	mlog(0, "%s: dead node is %u\n", dlm->name, dead_node);
 
 	spin_lock(&dlm->spinlock);
diff --git a/fs/ocfs2/dlm/dlmunlock.c b/fs/ocfs2/dlm/dlmunlock.c
index 817287c6a6db..850aa7e87537 100644
--- a/fs/ocfs2/dlm/dlmunlock.c
+++ b/fs/ocfs2/dlm/dlmunlock.c
@@ -317,7 +317,7 @@ static enum dlm_status dlm_send_remote_unlock_request(struct dlm_ctxt *dlm,
 	struct kvec vec[2];
 	size_t veclen = 1;
 
-	mlog_entry("%.*s\n", res->lockname.len, res->lockname.name);
+	mlog(0, "%.*s\n", res->lockname.len, res->lockname.name);
 
 	if (owner == dlm->node_num) {
 		/* ended up trying to contact ourself.  this means
@@ -588,8 +588,6 @@ enum dlm_status dlmunlock(struct dlm_ctxt *dlm, struct dlm_lockstatus *lksb,
 	struct dlm_lock *lock = NULL;
 	int call_ast, is_master;
 
-	mlog_entry_void();
-
 	if (!lksb) {
 		dlm_error(DLM_BADARGS);
 		return DLM_BADARGS;
diff --git a/fs/ocfs2/dlmglue.c b/fs/ocfs2/dlmglue.c
index e8d94d722ecb..7642d7ca73e5 100644
--- a/fs/ocfs2/dlmglue.c
+++ b/fs/ocfs2/dlmglue.c
@@ -64,7 +64,7 @@ struct ocfs2_mask_waiter {
 	unsigned long		mw_mask;
 	unsigned long		mw_goal;
 #ifdef CONFIG_OCFS2_FS_STATS
-	unsigned long long 	mw_lock_start;
+	ktime_t			mw_lock_start;
 #endif
 };
 
@@ -397,8 +397,6 @@ static void ocfs2_build_lock_name(enum ocfs2_lock_type type,
 {
 	int len;
 
-	mlog_entry_void();
-
 	BUG_ON(type >= OCFS2_NUM_LOCK_TYPES);
 
 	len = snprintf(name, OCFS2_LOCK_ID_MAX_LEN, "%c%s%016llx%08x",
@@ -408,8 +406,6 @@ static void ocfs2_build_lock_name(enum ocfs2_lock_type type,
 	BUG_ON(len != (OCFS2_LOCK_ID_MAX_LEN - 1));
 
 	mlog(0, "built lock resource with name: %s\n", name);
-
-	mlog_exit_void();
 }
 
 static DEFINE_SPINLOCK(ocfs2_dlm_tracking_lock);
@@ -435,44 +431,41 @@ static void ocfs2_remove_lockres_tracking(struct ocfs2_lock_res *res)
 #ifdef CONFIG_OCFS2_FS_STATS
 static void ocfs2_init_lock_stats(struct ocfs2_lock_res *res)
 {
-	res->l_lock_num_prmode = 0;
-	res->l_lock_num_prmode_failed = 0;
-	res->l_lock_total_prmode = 0;
-	res->l_lock_max_prmode = 0;
-	res->l_lock_num_exmode = 0;
-	res->l_lock_num_exmode_failed = 0;
-	res->l_lock_total_exmode = 0;
-	res->l_lock_max_exmode = 0;
 	res->l_lock_refresh = 0;
+	memset(&res->l_lock_prmode, 0, sizeof(struct ocfs2_lock_stats));
+	memset(&res->l_lock_exmode, 0, sizeof(struct ocfs2_lock_stats));
 }
 
 static void ocfs2_update_lock_stats(struct ocfs2_lock_res *res, int level,
 				    struct ocfs2_mask_waiter *mw, int ret)
 {
-	unsigned long long *num, *sum;
-	unsigned int *max, *failed;
-	struct timespec ts = current_kernel_time();
-	unsigned long long time = timespec_to_ns(&ts) - mw->mw_lock_start;
-
-	if (level == LKM_PRMODE) {
-		num = &res->l_lock_num_prmode;
-		sum = &res->l_lock_total_prmode;
-		max = &res->l_lock_max_prmode;
-		failed = &res->l_lock_num_prmode_failed;
-	} else if (level == LKM_EXMODE) {
-		num = &res->l_lock_num_exmode;
-		sum = &res->l_lock_total_exmode;
-		max = &res->l_lock_max_exmode;
-		failed = &res->l_lock_num_exmode_failed;
-	} else
+	u32 usec;
+	ktime_t kt;
+	struct ocfs2_lock_stats *stats;
+
+	if (level == LKM_PRMODE)
+		stats = &res->l_lock_prmode;
+	else if (level == LKM_EXMODE)
+		stats = &res->l_lock_exmode;
+	else
 		return;
 
-	(*num)++;
-	(*sum) += time;
-	if (time > *max)
-		*max = time;
+	kt = ktime_sub(ktime_get(), mw->mw_lock_start);
+	usec = ktime_to_us(kt);
+
+	stats->ls_gets++;
+	stats->ls_total += ktime_to_ns(kt);
+	/* overflow */
+	if (unlikely(stats->ls_gets) == 0) {
+		stats->ls_gets++;
+		stats->ls_total = ktime_to_ns(kt);
+	}
+
+	if (stats->ls_max < usec)
+		stats->ls_max = usec;
+
 	if (ret)
-		(*failed)++;
+		stats->ls_fail++;
 }
 
 static inline void ocfs2_track_lock_refresh(struct ocfs2_lock_res *lockres)
@@ -482,8 +475,7 @@ static inline void ocfs2_track_lock_refresh(struct ocfs2_lock_res *lockres)
 
 static inline void ocfs2_init_start_time(struct ocfs2_mask_waiter *mw)
 {
-	struct timespec ts = current_kernel_time();
-	mw->mw_lock_start = timespec_to_ns(&ts);
+	mw->mw_lock_start = ktime_get();
 }
 #else
 static inline void ocfs2_init_lock_stats(struct ocfs2_lock_res *res)
@@ -729,8 +721,6 @@ void ocfs2_refcount_lock_res_init(struct ocfs2_lock_res *lockres,
 
 void ocfs2_lock_res_free(struct ocfs2_lock_res *res)
 {
-	mlog_entry_void();
-
 	if (!(res->l_flags & OCFS2_LOCK_INITIALIZED))
 		return;
 
@@ -756,14 +746,11 @@ void ocfs2_lock_res_free(struct ocfs2_lock_res *res)
 	memset(&res->l_lksb, 0, sizeof(res->l_lksb));
 
 	res->l_flags = 0UL;
-	mlog_exit_void();
 }
 
 static inline void ocfs2_inc_holders(struct ocfs2_lock_res *lockres,
 				     int level)
 {
-	mlog_entry_void();
-
 	BUG_ON(!lockres);
 
 	switch(level) {
@@ -776,15 +763,11 @@ static inline void ocfs2_inc_holders(struct ocfs2_lock_res *lockres,
 	default:
 		BUG();
 	}
-
-	mlog_exit_void();
 }
 
 static inline void ocfs2_dec_holders(struct ocfs2_lock_res *lockres,
 				     int level)
 {
-	mlog_entry_void();
-
 	BUG_ON(!lockres);
 
 	switch(level) {
@@ -799,7 +782,6 @@ static inline void ocfs2_dec_holders(struct ocfs2_lock_res *lockres,
 	default:
 		BUG();
 	}
-	mlog_exit_void();
 }
 
 /* WARNING: This function lives in a world where the only three lock
@@ -846,8 +828,6 @@ static void lockres_clear_flags(struct ocfs2_lock_res *lockres,
 
 static inline void ocfs2_generic_handle_downconvert_action(struct ocfs2_lock_res *lockres)
 {
-	mlog_entry_void();
-
 	BUG_ON(!(lockres->l_flags & OCFS2_LOCK_BUSY));
 	BUG_ON(!(lockres->l_flags & OCFS2_LOCK_ATTACHED));
 	BUG_ON(!(lockres->l_flags & OCFS2_LOCK_BLOCKED));
@@ -860,14 +840,10 @@ static inline void ocfs2_generic_handle_downconvert_action(struct ocfs2_lock_res
 		lockres_clear_flags(lockres, OCFS2_LOCK_BLOCKED);
 	}
 	lockres_clear_flags(lockres, OCFS2_LOCK_BUSY);
-
-	mlog_exit_void();
 }
 
 static inline void ocfs2_generic_handle_convert_action(struct ocfs2_lock_res *lockres)
 {
-	mlog_entry_void();
-
 	BUG_ON(!(lockres->l_flags & OCFS2_LOCK_BUSY));
 	BUG_ON(!(lockres->l_flags & OCFS2_LOCK_ATTACHED));
 
@@ -889,14 +865,10 @@ static inline void ocfs2_generic_handle_convert_action(struct ocfs2_lock_res *lo
 	lockres_or_flags(lockres, OCFS2_LOCK_UPCONVERT_FINISHING);
 
 	lockres_clear_flags(lockres, OCFS2_LOCK_BUSY);
-
-	mlog_exit_void();
 }
 
 static inline void ocfs2_generic_handle_attach_action(struct ocfs2_lock_res *lockres)
 {
-	mlog_entry_void();
-
 	BUG_ON((!(lockres->l_flags & OCFS2_LOCK_BUSY)));
 	BUG_ON(lockres->l_flags & OCFS2_LOCK_ATTACHED);
 
@@ -908,15 +880,12 @@ static inline void ocfs2_generic_handle_attach_action(struct ocfs2_lock_res *loc
 	lockres->l_level = lockres->l_requested;
 	lockres_or_flags(lockres, OCFS2_LOCK_ATTACHED);
 	lockres_clear_flags(lockres, OCFS2_LOCK_BUSY);
-
-	mlog_exit_void();
 }
 
 static int ocfs2_generic_handle_bast(struct ocfs2_lock_res *lockres,
 				     int level)
 {
 	int needs_downconvert = 0;
-	mlog_entry_void();
 
 	assert_spin_locked(&lockres->l_lock);
 
@@ -938,8 +907,7 @@ static int ocfs2_generic_handle_bast(struct ocfs2_lock_res *lockres,
 
 	if (needs_downconvert)
 		lockres_or_flags(lockres, OCFS2_LOCK_BLOCKED);
-
-	mlog_exit(needs_downconvert);
+	mlog(0, "needs_downconvert = %d\n", needs_downconvert);
 	return needs_downconvert;
 }
 
@@ -1151,8 +1119,6 @@ static void ocfs2_unlock_ast(struct ocfs2_dlm_lksb *lksb, int error)
 	struct ocfs2_lock_res *lockres = ocfs2_lksb_to_lock_res(lksb);
 	unsigned long flags;
 
-	mlog_entry_void();
-
 	mlog(ML_BASTS, "UNLOCK AST fired for lockres %s, action = %d\n",
 	     lockres->l_name, lockres->l_unlock_action);
 
@@ -1162,7 +1128,6 @@ static void ocfs2_unlock_ast(struct ocfs2_dlm_lksb *lksb, int error)
 		     "unlock_action %d\n", error, lockres->l_name,
 		     lockres->l_unlock_action);
 		spin_unlock_irqrestore(&lockres->l_lock, flags);
-		mlog_exit_void();
 		return;
 	}
 
@@ -1186,8 +1151,6 @@ static void ocfs2_unlock_ast(struct ocfs2_dlm_lksb *lksb, int error)
 	lockres->l_unlock_action = OCFS2_UNLOCK_INVALID;
 	wake_up(&lockres->l_event);
 	spin_unlock_irqrestore(&lockres->l_lock, flags);
-
-	mlog_exit_void();
 }
 
 /*
@@ -1233,7 +1196,6 @@ static inline void ocfs2_recover_from_dlm_error(struct ocfs2_lock_res *lockres,
 {
 	unsigned long flags;
 
-	mlog_entry_void();
 	spin_lock_irqsave(&lockres->l_lock, flags);
 	lockres_clear_flags(lockres, OCFS2_LOCK_BUSY);
 	lockres_clear_flags(lockres, OCFS2_LOCK_UPCONVERT_FINISHING);
@@ -1244,7 +1206,6 @@ static inline void ocfs2_recover_from_dlm_error(struct ocfs2_lock_res *lockres,
 	spin_unlock_irqrestore(&lockres->l_lock, flags);
 
 	wake_up(&lockres->l_event);
-	mlog_exit_void();
 }
 
 /* Note: If we detect another process working on the lock (i.e.,
@@ -1260,8 +1221,6 @@ static int ocfs2_lock_create(struct ocfs2_super *osb,
 	unsigned long flags;
 	unsigned int gen;
 
-	mlog_entry_void();
-
 	mlog(0, "lock %s, level = %d, flags = %u\n", lockres->l_name, level,
 	     dlm_flags);
 
@@ -1293,7 +1252,6 @@ static int ocfs2_lock_create(struct ocfs2_super *osb,
 	mlog(0, "lock %s, return from ocfs2_dlm_lock\n", lockres->l_name);
 
 bail:
-	mlog_exit(ret);
 	return ret;
 }
 
@@ -1416,8 +1374,6 @@ static int __ocfs2_cluster_lock(struct ocfs2_super *osb,
 	unsigned int gen;
 	int noqueue_attempted = 0;
 
-	mlog_entry_void();
-
 	ocfs2_init_mask_waiter(&mw);
 
 	if (lockres->l_ops->flags & LOCK_TYPE_USES_LVB)
@@ -1583,7 +1539,6 @@ out:
 				caller_ip);
 	}
 #endif
-	mlog_exit(ret);
 	return ret;
 }
 
@@ -1605,7 +1560,6 @@ static void __ocfs2_cluster_unlock(struct ocfs2_super *osb,
 {
 	unsigned long flags;
 
-	mlog_entry_void();
 	spin_lock_irqsave(&lockres->l_lock, flags);
 	ocfs2_dec_holders(lockres, level);
 	ocfs2_downconvert_on_unlock(osb, lockres);
@@ -1614,7 +1568,6 @@ static void __ocfs2_cluster_unlock(struct ocfs2_super *osb,
 	if (lockres->l_lockdep_map.key != NULL)
 		rwsem_release(&lockres->l_lockdep_map, 1, caller_ip);
 #endif
-	mlog_exit_void();
 }
 
 static int ocfs2_create_new_lock(struct ocfs2_super *osb,
@@ -1648,8 +1601,6 @@ int ocfs2_create_new_inode_locks(struct inode *inode)
 	BUG_ON(!inode);
 	BUG_ON(!ocfs2_inode_is_new(inode));
 
-	mlog_entry_void();
-
 	mlog(0, "Inode %llu\n", (unsigned long long)OCFS2_I(inode)->ip_blkno);
 
 	/* NOTE: That we don't increment any of the holder counts, nor
@@ -1683,7 +1634,6 @@ int ocfs2_create_new_inode_locks(struct inode *inode)
 	}
 
 bail:
-	mlog_exit(ret);
 	return ret;
 }
 
@@ -1695,16 +1645,12 @@ int ocfs2_rw_lock(struct inode *inode, int write)
 
 	BUG_ON(!inode);
 
-	mlog_entry_void();
-
 	mlog(0, "inode %llu take %s RW lock\n",
 	     (unsigned long long)OCFS2_I(inode)->ip_blkno,
 	     write ? "EXMODE" : "PRMODE");
 
-	if (ocfs2_mount_local(osb)) {
-		mlog_exit(0);
+	if (ocfs2_mount_local(osb))
 		return 0;
-	}
 
 	lockres = &OCFS2_I(inode)->ip_rw_lockres;
 
@@ -1715,7 +1661,6 @@ int ocfs2_rw_lock(struct inode *inode, int write)
 	if (status < 0)
 		mlog_errno(status);
 
-	mlog_exit(status);
 	return status;
 }
 
@@ -1725,16 +1670,12 @@ void ocfs2_rw_unlock(struct inode *inode, int write)
 	struct ocfs2_lock_res *lockres = &OCFS2_I(inode)->ip_rw_lockres;
 	struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
 
-	mlog_entry_void();
-
 	mlog(0, "inode %llu drop %s RW lock\n",
 	     (unsigned long long)OCFS2_I(inode)->ip_blkno,
 	     write ? "EXMODE" : "PRMODE");
 
 	if (!ocfs2_mount_local(osb))
 		ocfs2_cluster_unlock(OCFS2_SB(inode->i_sb), lockres, level);
-
-	mlog_exit_void();
 }
 
 /*
@@ -1748,8 +1689,6 @@ int ocfs2_open_lock(struct inode *inode)
 
 	BUG_ON(!inode);
 
-	mlog_entry_void();
-
 	mlog(0, "inode %llu take PRMODE open lock\n",
 	     (unsigned long long)OCFS2_I(inode)->ip_blkno);
 
@@ -1764,7 +1703,6 @@ int ocfs2_open_lock(struct inode *inode)
 		mlog_errno(status);
 
 out:
-	mlog_exit(status);
 	return status;
 }
 
@@ -1776,8 +1714,6 @@ int ocfs2_try_open_lock(struct inode *inode, int write)
 
 	BUG_ON(!inode);
 
-	mlog_entry_void();
-
 	mlog(0, "inode %llu try to take %s open lock\n",
 	     (unsigned long long)OCFS2_I(inode)->ip_blkno,
 	     write ? "EXMODE" : "PRMODE");
@@ -1799,7 +1735,6 @@ int ocfs2_try_open_lock(struct inode *inode, int write)
 				    level, DLM_LKF_NOQUEUE, 0);
 
 out:
-	mlog_exit(status);
 	return status;
 }
 
@@ -1811,8 +1746,6 @@ void ocfs2_open_unlock(struct inode *inode)
 	struct ocfs2_lock_res *lockres = &OCFS2_I(inode)->ip_open_lockres;
 	struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
 
-	mlog_entry_void();
-
 	mlog(0, "inode %llu drop open lock\n",
 	     (unsigned long long)OCFS2_I(inode)->ip_blkno);
 
@@ -1827,7 +1760,7 @@ void ocfs2_open_unlock(struct inode *inode)
 				     DLM_LOCK_EX);
 
 out:
-	mlog_exit_void();
+	return;
 }
 
 static int ocfs2_flock_handle_signal(struct ocfs2_lock_res *lockres,
@@ -2043,8 +1976,6 @@ static void ocfs2_downconvert_on_unlock(struct ocfs2_super *osb,
 {
 	int kick = 0;
 
-	mlog_entry_void();
-
 	/* If we know that another node is waiting on our lock, kick
 	 * the downconvert thread * pre-emptively when we reach a release
 	 * condition. */
@@ -2065,8 +1996,6 @@ static void ocfs2_downconvert_on_unlock(struct ocfs2_super *osb,
 
 	if (kick)
 		ocfs2_wake_downconvert_thread(osb);
-
-	mlog_exit_void();
 }
 
 #define OCFS2_SEC_BITS   34
@@ -2095,8 +2024,6 @@ static void __ocfs2_stuff_meta_lvb(struct inode *inode)
 	struct ocfs2_lock_res *lockres = &oi->ip_inode_lockres;
 	struct ocfs2_meta_lvb *lvb;
 
-	mlog_entry_void();
-
 	lvb = ocfs2_dlm_lvb(&lockres->l_lksb);
 
 	/*
@@ -2128,8 +2055,6 @@ static void __ocfs2_stuff_meta_lvb(struct inode *inode)
 
 out:
 	mlog_meta_lvb(0, lockres);
-
-	mlog_exit_void();
 }
 
 static void ocfs2_unpack_timespec(struct timespec *spec,
@@ -2145,8 +2070,6 @@ static void ocfs2_refresh_inode_from_lvb(struct inode *inode)
 	struct ocfs2_lock_res *lockres = &oi->ip_inode_lockres;
 	struct ocfs2_meta_lvb *lvb;
 
-	mlog_entry_void();
-
 	mlog_meta_lvb(0, lockres);
 
 	lvb = ocfs2_dlm_lvb(&lockres->l_lksb);
@@ -2177,8 +2100,6 @@ static void ocfs2_refresh_inode_from_lvb(struct inode *inode)
 	ocfs2_unpack_timespec(&inode->i_ctime,
 			      be64_to_cpu(lvb->lvb_ictime_packed));
 	spin_unlock(&oi->ip_lock);
-
-	mlog_exit_void();
 }
 
 static inline int ocfs2_meta_lvb_is_trustable(struct inode *inode,
@@ -2205,8 +2126,6 @@ static int ocfs2_should_refresh_lock_res(struct ocfs2_lock_res *lockres)
 	unsigned long flags;
 	int status = 0;
 
-	mlog_entry_void();
-
 refresh_check:
 	spin_lock_irqsave(&lockres->l_lock, flags);
 	if (!(lockres->l_flags & OCFS2_LOCK_NEEDS_REFRESH)) {
@@ -2227,7 +2146,7 @@ refresh_check:
 
 	status = 1;
 bail:
-	mlog_exit(status);
+	mlog(0, "status %d\n", status);
 	return status;
 }
 
@@ -2237,7 +2156,6 @@ static inline void ocfs2_complete_lock_res_refresh(struct ocfs2_lock_res *lockre
 						   int status)
 {
 	unsigned long flags;
-	mlog_entry_void();
 
 	spin_lock_irqsave(&lockres->l_lock, flags);
 	lockres_clear_flags(lockres, OCFS2_LOCK_REFRESHING);
@@ -2246,8 +2164,6 @@ static inline void ocfs2_complete_lock_res_refresh(struct ocfs2_lock_res *lockre
 	spin_unlock_irqrestore(&lockres->l_lock, flags);
 
 	wake_up(&lockres->l_event);
-
-	mlog_exit_void();
 }
 
 /* may or may not return a bh if it went to disk. */
@@ -2260,8 +2176,6 @@ static int ocfs2_inode_lock_update(struct inode *inode,
 	struct ocfs2_dinode *fe;
 	struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
 
-	mlog_entry_void();
-
 	if (ocfs2_mount_local(osb))
 		goto bail;
 
@@ -2330,7 +2244,6 @@ static int ocfs2_inode_lock_update(struct inode *inode,
 bail_refresh:
 	ocfs2_complete_lock_res_refresh(lockres, status);
 bail:
-	mlog_exit(status);
 	return status;
 }
 
@@ -2374,8 +2287,6 @@ int ocfs2_inode_lock_full_nested(struct inode *inode,
 
 	BUG_ON(!inode);
 
-	mlog_entry_void();
-
 	mlog(0, "inode %llu, take %s META lock\n",
 	     (unsigned long long)OCFS2_I(inode)->ip_blkno,
 	     ex ? "EXMODE" : "PRMODE");
@@ -2467,7 +2378,6 @@ bail:
 	if (local_bh)
 		brelse(local_bh);
 
-	mlog_exit(status);
 	return status;
 }
 
@@ -2517,7 +2427,6 @@ int ocfs2_inode_lock_atime(struct inode *inode,
 {
 	int ret;
 
-	mlog_entry_void();
 	ret = ocfs2_inode_lock(inode, NULL, 0);
 	if (ret < 0) {
 		mlog_errno(ret);
@@ -2545,7 +2454,6 @@ int ocfs2_inode_lock_atime(struct inode *inode,
 	} else
 		*level = 0;
 
-	mlog_exit(ret);
 	return ret;
 }
 
@@ -2556,8 +2464,6 @@ void ocfs2_inode_unlock(struct inode *inode,
 	struct ocfs2_lock_res *lockres = &OCFS2_I(inode)->ip_inode_lockres;
 	struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
 
-	mlog_entry_void();
-
 	mlog(0, "inode %llu drop %s META lock\n",
 	     (unsigned long long)OCFS2_I(inode)->ip_blkno,
 	     ex ? "EXMODE" : "PRMODE");
@@ -2565,8 +2471,6 @@ void ocfs2_inode_unlock(struct inode *inode,
 	if (!ocfs2_is_hard_readonly(OCFS2_SB(inode->i_sb)) &&
 	    !ocfs2_mount_local(osb))
 		ocfs2_cluster_unlock(OCFS2_SB(inode->i_sb), lockres, level);
-
-	mlog_exit_void();
 }
 
 int ocfs2_orphan_scan_lock(struct ocfs2_super *osb, u32 *seqno)
@@ -2617,8 +2521,6 @@ int ocfs2_super_lock(struct ocfs2_super *osb,
 	int level = ex ? DLM_LOCK_EX : DLM_LOCK_PR;
 	struct ocfs2_lock_res *lockres = &osb->osb_super_lockres;
 
-	mlog_entry_void();
-
 	if (ocfs2_is_hard_readonly(osb))
 		return -EROFS;
 
@@ -2650,7 +2552,6 @@ int ocfs2_super_lock(struct ocfs2_super *osb,
 		ocfs2_track_lock_refresh(lockres);
 	}
 bail:
-	mlog_exit(status);
 	return status;
 }
 
@@ -2869,8 +2770,15 @@ static void *ocfs2_dlm_seq_next(struct seq_file *m, void *v, loff_t *pos)
 	return iter;
 }
 
-/* So that debugfs.ocfs2 can determine which format is being used */
-#define OCFS2_DLM_DEBUG_STR_VERSION 2
+/*
+ * Version is used by debugfs.ocfs2 to determine the format being used
+ *
+ * New in version 2
+ *	- Lock stats printed
+ * New in version 3
+ *	- Max time in lock stats is in usecs (instead of nsecs)
+ */
+#define OCFS2_DLM_DEBUG_STR_VERSION 3
 static int ocfs2_dlm_seq_show(struct seq_file *m, void *v)
 {
 	int i;
@@ -2912,18 +2820,18 @@ static int ocfs2_dlm_seq_show(struct seq_file *m, void *v)
 		seq_printf(m, "0x%x\t", lvb[i]);
 
 #ifdef CONFIG_OCFS2_FS_STATS
-# define lock_num_prmode(_l)		(_l)->l_lock_num_prmode
-# define lock_num_exmode(_l)		(_l)->l_lock_num_exmode
-# define lock_num_prmode_failed(_l)	(_l)->l_lock_num_prmode_failed
-# define lock_num_exmode_failed(_l)	(_l)->l_lock_num_exmode_failed
-# define lock_total_prmode(_l)		(_l)->l_lock_total_prmode
-# define lock_total_exmode(_l)		(_l)->l_lock_total_exmode
-# define lock_max_prmode(_l)		(_l)->l_lock_max_prmode
-# define lock_max_exmode(_l)		(_l)->l_lock_max_exmode
-# define lock_refresh(_l)		(_l)->l_lock_refresh
+# define lock_num_prmode(_l)		((_l)->l_lock_prmode.ls_gets)
+# define lock_num_exmode(_l)		((_l)->l_lock_exmode.ls_gets)
+# define lock_num_prmode_failed(_l)	((_l)->l_lock_prmode.ls_fail)
+# define lock_num_exmode_failed(_l)	((_l)->l_lock_exmode.ls_fail)
+# define lock_total_prmode(_l)		((_l)->l_lock_prmode.ls_total)
+# define lock_total_exmode(_l)		((_l)->l_lock_exmode.ls_total)
+# define lock_max_prmode(_l)		((_l)->l_lock_prmode.ls_max)
+# define lock_max_exmode(_l)		((_l)->l_lock_exmode.ls_max)
+# define lock_refresh(_l)		((_l)->l_lock_refresh)
 #else
-# define lock_num_prmode(_l)		(0ULL)
-# define lock_num_exmode(_l)		(0ULL)
+# define lock_num_prmode(_l)		(0)
+# define lock_num_exmode(_l)		(0)
 # define lock_num_prmode_failed(_l)	(0)
 # define lock_num_exmode_failed(_l)	(0)
 # define lock_total_prmode(_l)		(0ULL)
@@ -2933,8 +2841,8 @@ static int ocfs2_dlm_seq_show(struct seq_file *m, void *v)
 # define lock_refresh(_l)		(0)
 #endif
 	/* The following seq_print was added in version 2 of this output */
-	seq_printf(m, "%llu\t"
-		   "%llu\t"
+	seq_printf(m, "%u\t"
+		   "%u\t"
 		   "%u\t"
 		   "%u\t"
 		   "%llu\t"
@@ -3054,8 +2962,6 @@ int ocfs2_dlm_init(struct ocfs2_super *osb)
 	int status = 0;
 	struct ocfs2_cluster_connection *conn = NULL;
 
-	mlog_entry_void();
-
 	if (ocfs2_mount_local(osb)) {
 		osb->node_num = 0;
 		goto local;
@@ -3112,15 +3018,12 @@ bail:
 			kthread_stop(osb->dc_task);
 	}
 
-	mlog_exit(status);
 	return status;
 }
 
 void ocfs2_dlm_shutdown(struct ocfs2_super *osb,
 			int hangup_pending)
 {
-	mlog_entry_void();
-
 	ocfs2_drop_osb_locks(osb);
 
 	/*
@@ -3143,8 +3046,6 @@ void ocfs2_dlm_shutdown(struct ocfs2_super *osb,
 	osb->cconn = NULL;
 
 	ocfs2_dlm_shutdown_debug(osb);
-
-	mlog_exit_void();
 }
 
 static int ocfs2_drop_lock(struct ocfs2_super *osb,
@@ -3226,7 +3127,6 @@ static int ocfs2_drop_lock(struct ocfs2_super *osb,
 
 	ocfs2_wait_on_busy_lock(lockres);
 out:
-	mlog_exit(0);
 	return 0;
 }
 
@@ -3284,8 +3184,6 @@ int ocfs2_drop_inode_locks(struct inode *inode)
 {
 	int status, err;
 
-	mlog_entry_void();
-
 	/* No need to call ocfs2_mark_lockres_freeing here -
 	 * ocfs2_clear_inode has done it for us. */
 
@@ -3310,7 +3208,6 @@ int ocfs2_drop_inode_locks(struct inode *inode)
 	if (err < 0 && !status)
 		status = err;
 
-	mlog_exit(status);
 	return status;
 }
 
@@ -3352,8 +3249,6 @@ static int ocfs2_downconvert_lock(struct ocfs2_super *osb,
 	int ret;
 	u32 dlm_flags = DLM_LKF_CONVERT;
 
-	mlog_entry_void();
-
 	mlog(ML_BASTS, "lockres %s, level %d => %d\n", lockres->l_name,
 	     lockres->l_level, new_level);
 
@@ -3375,7 +3270,6 @@ static int ocfs2_downconvert_lock(struct ocfs2_super *osb,
 
 	ret = 0;
 bail:
-	mlog_exit(ret);
 	return ret;
 }
 
@@ -3385,8 +3279,6 @@ static int ocfs2_prepare_cancel_convert(struct ocfs2_super *osb,
 {
 	assert_spin_locked(&lockres->l_lock);
 
-	mlog_entry_void();
-
 	if (lockres->l_unlock_action == OCFS2_UNLOCK_CANCEL_CONVERT) {
 		/* If we're already trying to cancel a lock conversion
 		 * then just drop the spinlock and allow the caller to
@@ -3416,8 +3308,6 @@ static int ocfs2_cancel_convert(struct ocfs2_super *osb,
 {
 	int ret;
 
-	mlog_entry_void();
-
 	ret = ocfs2_dlm_unlock(osb->cconn, &lockres->l_lksb,
 			       DLM_LKF_CANCEL);
 	if (ret) {
@@ -3427,7 +3317,6 @@ static int ocfs2_cancel_convert(struct ocfs2_super *osb,
 
 	mlog(ML_BASTS, "lockres %s\n", lockres->l_name);
 
-	mlog_exit(ret);
 	return ret;
 }
 
@@ -3443,8 +3332,6 @@ static int ocfs2_unblock_lock(struct ocfs2_super *osb,
 	int set_lvb = 0;
 	unsigned int gen;
 
-	mlog_entry_void();
-
 	spin_lock_irqsave(&lockres->l_lock, flags);
 
 recheck:
@@ -3619,14 +3506,14 @@ downconvert:
 				     gen);
 
 leave:
-	mlog_exit(ret);
+	if (ret)
+		mlog_errno(ret);
 	return ret;
 
 leave_requeue:
 	spin_unlock_irqrestore(&lockres->l_lock, flags);
 	ctl->requeue = 1;
 
-	mlog_exit(0);
 	return 0;
 }
 
@@ -3859,8 +3746,6 @@ static void ocfs2_set_qinfo_lvb(struct ocfs2_lock_res *lockres)
 	struct mem_dqinfo *info = sb_dqinfo(oinfo->dqi_gi.dqi_sb,
 					    oinfo->dqi_gi.dqi_type);
 
-	mlog_entry_void();
-
 	lvb = ocfs2_dlm_lvb(&lockres->l_lksb);
 	lvb->lvb_version = OCFS2_QINFO_LVB_VERSION;
 	lvb->lvb_bgrace = cpu_to_be32(info->dqi_bgrace);
@@ -3869,8 +3754,6 @@ static void ocfs2_set_qinfo_lvb(struct ocfs2_lock_res *lockres)
 	lvb->lvb_blocks = cpu_to_be32(oinfo->dqi_gi.dqi_blocks);
 	lvb->lvb_free_blk = cpu_to_be32(oinfo->dqi_gi.dqi_free_blk);
 	lvb->lvb_free_entry = cpu_to_be32(oinfo->dqi_gi.dqi_free_entry);
-
-	mlog_exit_void();
 }
 
 void ocfs2_qinfo_unlock(struct ocfs2_mem_dqinfo *oinfo, int ex)
@@ -3879,10 +3762,8 @@ void ocfs2_qinfo_unlock(struct ocfs2_mem_dqinfo *oinfo, int ex)
 	struct ocfs2_super *osb = OCFS2_SB(oinfo->dqi_gi.dqi_sb);
 	int level = ex ? DLM_LOCK_EX : DLM_LOCK_PR;
 
-	mlog_entry_void();
 	if (!ocfs2_is_hard_readonly(osb) && !ocfs2_mount_local(osb))
 		ocfs2_cluster_unlock(osb, lockres, level);
-	mlog_exit_void();
 }
 
 static int ocfs2_refresh_qinfo(struct ocfs2_mem_dqinfo *oinfo)
@@ -3937,8 +3818,6 @@ int ocfs2_qinfo_lock(struct ocfs2_mem_dqinfo *oinfo, int ex)
 	int level = ex ? DLM_LOCK_EX : DLM_LOCK_PR;
 	int status = 0;
 
-	mlog_entry_void();
-
 	/* On RO devices, locking really isn't needed... */
 	if (ocfs2_is_hard_readonly(osb)) {
 		if (ex)
@@ -3961,7 +3840,6 @@ int ocfs2_qinfo_lock(struct ocfs2_mem_dqinfo *oinfo, int ex)
 		ocfs2_qinfo_unlock(oinfo, ex);
 	ocfs2_complete_lock_res_refresh(lockres, status);
 bail:
-	mlog_exit(status);
 	return status;
 }
 
@@ -4007,8 +3885,6 @@ static void ocfs2_process_blocked_lock(struct ocfs2_super *osb,
 	 * considered valid until we remove the OCFS2_LOCK_QUEUED
 	 * flag. */
 
-	mlog_entry_void();
-
 	BUG_ON(!lockres);
 	BUG_ON(!lockres->l_ops);
 
@@ -4042,15 +3918,11 @@ unqueue:
 	if (ctl.unblock_action != UNBLOCK_CONTINUE
 	    && lockres->l_ops->post_unlock)
 		lockres->l_ops->post_unlock(osb, lockres);
-
-	mlog_exit_void();
 }
 
 static void ocfs2_schedule_blocked_lock(struct ocfs2_super *osb,
 					struct ocfs2_lock_res *lockres)
 {
-	mlog_entry_void();
-
 	assert_spin_locked(&lockres->l_lock);
 
 	if (lockres->l_flags & OCFS2_LOCK_FREEING) {
@@ -4071,8 +3943,6 @@ static void ocfs2_schedule_blocked_lock(struct ocfs2_super *osb,
 		osb->blocked_lock_count++;
 	}
 	spin_unlock(&osb->dc_task_lock);
-
-	mlog_exit_void();
 }
 
 static void ocfs2_downconvert_thread_do_work(struct ocfs2_super *osb)
@@ -4080,8 +3950,6 @@ static void ocfs2_downconvert_thread_do_work(struct ocfs2_super *osb)
 	unsigned long processed;
 	struct ocfs2_lock_res *lockres;
 
-	mlog_entry_void();
-
 	spin_lock(&osb->dc_task_lock);
 	/* grab this early so we know to try again if a state change and
 	 * wake happens part-way through our work  */
@@ -4105,8 +3973,6 @@ static void ocfs2_downconvert_thread_do_work(struct ocfs2_super *osb)
 		spin_lock(&osb->dc_task_lock);
 	}
 	spin_unlock(&osb->dc_task_lock);
-
-	mlog_exit_void();
 }
 
 static int ocfs2_downconvert_thread_lists_empty(struct ocfs2_super *osb)
diff --git a/fs/ocfs2/export.c b/fs/ocfs2/export.c
index 254652a9b542..745db42528d5 100644
--- a/fs/ocfs2/export.c
+++ b/fs/ocfs2/export.c
@@ -26,7 +26,6 @@
 #include <linux/fs.h>
 #include <linux/types.h>
 
-#define MLOG_MASK_PREFIX ML_EXPORT
 #include <cluster/masklog.h>
 
 #include "ocfs2.h"
@@ -40,6 +39,7 @@
 
 #include "buffer_head_io.h"
 #include "suballoc.h"
+#include "ocfs2_trace.h"
 
 struct ocfs2_inode_handle
 {
@@ -56,10 +56,9 @@ static struct dentry *ocfs2_get_dentry(struct super_block *sb,
 	int status, set;
 	struct dentry *result;
 
-	mlog_entry("(0x%p, 0x%p)\n", sb, handle);
+	trace_ocfs2_get_dentry_begin(sb, handle, (unsigned long long)blkno);
 
 	if (blkno == 0) {
-		mlog(0, "nfs wants inode with blkno: 0\n");
 		result = ERR_PTR(-ESTALE);
 		goto bail;
 	}
@@ -83,6 +82,7 @@ static struct dentry *ocfs2_get_dentry(struct super_block *sb,
 	}
 
 	status = ocfs2_test_inode_bit(osb, blkno, &set);
+	trace_ocfs2_get_dentry_test_bit(status, set);
 	if (status < 0) {
 		if (status == -EINVAL) {
 			/*
@@ -90,18 +90,14 @@ static struct dentry *ocfs2_get_dentry(struct super_block *sb,
 			 * as an inode, we return -ESTALE to be
 			 * nice
 			 */
-			mlog(0, "test inode bit failed %d\n", status);
 			status = -ESTALE;
-		} else {
+		} else
 			mlog(ML_ERROR, "test inode bit failed %d\n", status);
-		}
 		goto unlock_nfs_sync;
 	}
 
 	/* If the inode allocator bit is clear, this inode must be stale */
 	if (!set) {
-		mlog(0, "inode %llu suballoc bit is clear\n",
-		     (unsigned long long)blkno);
 		status = -ESTALE;
 		goto unlock_nfs_sync;
 	}
@@ -114,8 +110,8 @@ unlock_nfs_sync:
 check_err:
 	if (status < 0) {
 		if (status == -ESTALE) {
-			mlog(0, "stale inode ino: %llu generation: %u\n",
-			     (unsigned long long)blkno, handle->ih_generation);
+			trace_ocfs2_get_dentry_stale((unsigned long long)blkno,
+						     handle->ih_generation);
 		}
 		result = ERR_PTR(status);
 		goto bail;
@@ -130,8 +126,9 @@ check_err:
 check_gen:
 	if (handle->ih_generation != inode->i_generation) {
 		iput(inode);
-		mlog(0, "stale inode ino: %llu generation: %u\n",
-		     (unsigned long long)blkno, handle->ih_generation);
+		trace_ocfs2_get_dentry_generation((unsigned long long)blkno,
+						  handle->ih_generation,
+						  inode->i_generation);
 		result = ERR_PTR(-ESTALE);
 		goto bail;
 	}
@@ -141,7 +138,7 @@ check_gen:
 		mlog_errno(PTR_ERR(result));
 
 bail:
-	mlog_exit_ptr(result);
+	trace_ocfs2_get_dentry_end(result);
 	return result;
 }
 
@@ -152,11 +149,8 @@ static struct dentry *ocfs2_get_parent(struct dentry *child)
 	struct dentry *parent;
 	struct inode *dir = child->d_inode;
 
-	mlog_entry("(0x%p, '%.*s')\n", child,
-		   child->d_name.len, child->d_name.name);
-
-	mlog(0, "find parent of directory %llu\n",
-	     (unsigned long long)OCFS2_I(dir)->ip_blkno);
+	trace_ocfs2_get_parent(child, child->d_name.len, child->d_name.name,
+			       (unsigned long long)OCFS2_I(dir)->ip_blkno);
 
 	status = ocfs2_inode_lock(dir, NULL, 0);
 	if (status < 0) {
@@ -178,7 +172,7 @@ bail_unlock:
 	ocfs2_inode_unlock(dir, 0);
 
 bail:
-	mlog_exit_ptr(parent);
+	trace_ocfs2_get_parent_end(parent);
 
 	return parent;
 }
@@ -193,9 +187,9 @@ static int ocfs2_encode_fh(struct dentry *dentry, u32 *fh_in, int *max_len,
 	u32 generation;
 	__le32 *fh = (__force __le32 *) fh_in;
 
-	mlog_entry("(0x%p, '%.*s', 0x%p, %d, %d)\n", dentry,
-		   dentry->d_name.len, dentry->d_name.name,
-		   fh, len, connectable);
+	trace_ocfs2_encode_fh_begin(dentry, dentry->d_name.len,
+				    dentry->d_name.name,
+				    fh, len, connectable);
 
 	if (connectable && (len < 6)) {
 		*max_len = 6;
@@ -210,8 +204,7 @@ static int ocfs2_encode_fh(struct dentry *dentry, u32 *fh_in, int *max_len,
 	blkno = OCFS2_I(inode)->ip_blkno;
 	generation = inode->i_generation;
 
-	mlog(0, "Encoding fh: blkno: %llu, generation: %u\n",
-	     (unsigned long long)blkno, generation);
+	trace_ocfs2_encode_fh_self((unsigned long long)blkno, generation);
 
 	len = 3;
 	fh[0] = cpu_to_le32((u32)(blkno >> 32));
@@ -236,14 +229,14 @@ static int ocfs2_encode_fh(struct dentry *dentry, u32 *fh_in, int *max_len,
 		len = 6;
 		type = 2;
 
-		mlog(0, "Encoding parent: blkno: %llu, generation: %u\n",
-		     (unsigned long long)blkno, generation);
+		trace_ocfs2_encode_fh_parent((unsigned long long)blkno,
+					     generation);
 	}
 
 	*max_len = len;
 
 bail:
-	mlog_exit(type);
+	trace_ocfs2_encode_fh_type(type);
 	return type;
 }
 
diff --git a/fs/ocfs2/extent_map.c b/fs/ocfs2/extent_map.c
index 09e3fdfa6d33..23457b491e8c 100644
--- a/fs/ocfs2/extent_map.c
+++ b/fs/ocfs2/extent_map.c
@@ -28,7 +28,6 @@
 #include <linux/types.h>
 #include <linux/fiemap.h>
 
-#define MLOG_MASK_PREFIX ML_EXTENT_MAP
 #include <cluster/masklog.h>
 
 #include "ocfs2.h"
@@ -39,6 +38,7 @@
 #include "inode.h"
 #include "super.h"
 #include "symlink.h"
+#include "ocfs2_trace.h"
 
 #include "buffer_head_io.h"
 
@@ -841,10 +841,9 @@ int ocfs2_read_virt_blocks(struct inode *inode, u64 v_block, int nr,
 	u64 p_block, p_count;
 	int i, count, done = 0;
 
-	mlog_entry("(inode = %p, v_block = %llu, nr = %d, bhs = %p, "
-		   "flags = %x, validate = %p)\n",
-		   inode, (unsigned long long)v_block, nr, bhs, flags,
-		   validate);
+	trace_ocfs2_read_virt_blocks(
+	     inode, (unsigned long long)v_block, nr, bhs, flags,
+	     validate);
 
 	if (((v_block + nr - 1) << inode->i_sb->s_blocksize_bits) >=
 	    i_size_read(inode)) {
@@ -897,7 +896,6 @@ int ocfs2_read_virt_blocks(struct inode *inode, u64 v_block, int nr,
 	}
 
 out:
-	mlog_exit(rc);
 	return rc;
 }
 
diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index a6651956482e..41565ae52856 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -38,7 +38,6 @@
 #include <linux/quotaops.h>
 #include <linux/blkdev.h>
 
-#define MLOG_MASK_PREFIX ML_INODE
 #include <cluster/masklog.h>
 
 #include "ocfs2.h"
@@ -61,6 +60,7 @@
 #include "acl.h"
 #include "quota.h"
 #include "refcounttree.h"
+#include "ocfs2_trace.h"
 
 #include "buffer_head_io.h"
 
@@ -99,8 +99,10 @@ static int ocfs2_file_open(struct inode *inode, struct file *file)
 	int mode = file->f_flags;
 	struct ocfs2_inode_info *oi = OCFS2_I(inode);
 
-	mlog_entry("(0x%p, 0x%p, '%.*s')\n", inode, file,
-		   file->f_path.dentry->d_name.len, file->f_path.dentry->d_name.name);
+	trace_ocfs2_file_open(inode, file, file->f_path.dentry,
+			      (unsigned long long)OCFS2_I(inode)->ip_blkno,
+			      file->f_path.dentry->d_name.len,
+			      file->f_path.dentry->d_name.name, mode);
 
 	if (file->f_mode & FMODE_WRITE)
 		dquot_initialize(inode);
@@ -135,7 +137,6 @@ static int ocfs2_file_open(struct inode *inode, struct file *file)
 	}
 
 leave:
-	mlog_exit(status);
 	return status;
 }
 
@@ -143,19 +144,19 @@ static int ocfs2_file_release(struct inode *inode, struct file *file)
 {
 	struct ocfs2_inode_info *oi = OCFS2_I(inode);
 
-	mlog_entry("(0x%p, 0x%p, '%.*s')\n", inode, file,
-		       file->f_path.dentry->d_name.len,
-		       file->f_path.dentry->d_name.name);
-
 	spin_lock(&oi->ip_lock);
 	if (!--oi->ip_open_count)
 		oi->ip_flags &= ~OCFS2_INODE_OPEN_DIRECT;
+
+	trace_ocfs2_file_release(inode, file, file->f_path.dentry,
+				 oi->ip_blkno,
+				 file->f_path.dentry->d_name.len,
+				 file->f_path.dentry->d_name.name,
+				 oi->ip_open_count);
 	spin_unlock(&oi->ip_lock);
 
 	ocfs2_free_file_private(inode, file);
 
-	mlog_exit(0);
-
 	return 0;
 }
 
@@ -177,9 +178,11 @@ static int ocfs2_sync_file(struct file *file, int datasync)
 	struct inode *inode = file->f_mapping->host;
 	struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
 
-	mlog_entry("(0x%p, %d, 0x%p, '%.*s')\n", file, datasync,
-		   file->f_path.dentry, file->f_path.dentry->d_name.len,
-		   file->f_path.dentry->d_name.name);
+	trace_ocfs2_sync_file(inode, file, file->f_path.dentry,
+			      OCFS2_I(inode)->ip_blkno,
+			      file->f_path.dentry->d_name.len,
+			      file->f_path.dentry->d_name.name,
+			      (unsigned long long)datasync);
 
 	if (datasync && !(inode->i_state & I_DIRTY_DATASYNC)) {
 		/*
@@ -195,7 +198,8 @@ static int ocfs2_sync_file(struct file *file, int datasync)
 	err = jbd2_journal_force_commit(journal);
 
 bail:
-	mlog_exit(err);
+	if (err)
+		mlog_errno(err);
 
 	return (err < 0) ? -EIO : 0;
 }
@@ -251,8 +255,6 @@ int ocfs2_update_inode_atime(struct inode *inode,
 	handle_t *handle;
 	struct ocfs2_dinode *di = (struct ocfs2_dinode *) bh->b_data;
 
-	mlog_entry_void();
-
 	handle = ocfs2_start_trans(osb, OCFS2_INODE_UPDATE_CREDITS);
 	if (IS_ERR(handle)) {
 		ret = PTR_ERR(handle);
@@ -280,7 +282,6 @@ int ocfs2_update_inode_atime(struct inode *inode,
 out_commit:
 	ocfs2_commit_trans(OCFS2_SB(inode->i_sb), handle);
 out:
-	mlog_exit(ret);
 	return ret;
 }
 
@@ -291,7 +292,6 @@ static int ocfs2_set_inode_size(handle_t *handle,
 {
 	int status;
 
-	mlog_entry_void();
 	i_size_write(inode, new_i_size);
 	inode->i_blocks = ocfs2_inode_sector_count(inode);
 	inode->i_ctime = inode->i_mtime = CURRENT_TIME;
@@ -303,7 +303,6 @@ static int ocfs2_set_inode_size(handle_t *handle,
 	}
 
 bail:
-	mlog_exit(status);
 	return status;
 }
 
@@ -375,8 +374,6 @@ static int ocfs2_orphan_for_truncate(struct ocfs2_super *osb,
 	struct ocfs2_dinode *di;
 	u64 cluster_bytes;
 
-	mlog_entry_void();
-
 	/*
 	 * We need to CoW the cluster contains the offset if it is reflinked
 	 * since we will call ocfs2_zero_range_for_truncate later which will
@@ -429,8 +426,6 @@ static int ocfs2_orphan_for_truncate(struct ocfs2_super *osb,
 out_commit:
 	ocfs2_commit_trans(osb, handle);
 out:
-
-	mlog_exit(status);
 	return status;
 }
 
@@ -442,14 +437,14 @@ static int ocfs2_truncate_file(struct inode *inode,
 	struct ocfs2_dinode *fe = NULL;
 	struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
 
-	mlog_entry("(inode = %llu, new_i_size = %llu\n",
-		   (unsigned long long)OCFS2_I(inode)->ip_blkno,
-		   (unsigned long long)new_i_size);
-
 	/* We trust di_bh because it comes from ocfs2_inode_lock(), which
 	 * already validated it */
 	fe = (struct ocfs2_dinode *) di_bh->b_data;
 
+	trace_ocfs2_truncate_file((unsigned long long)OCFS2_I(inode)->ip_blkno,
+				  (unsigned long long)le64_to_cpu(fe->i_size),
+				  (unsigned long long)new_i_size);
+
 	mlog_bug_on_msg(le64_to_cpu(fe->i_size) != i_size_read(inode),
 			"Inode %llu, inode i_size = %lld != di "
 			"i_size = %llu, i_flags = 0x%x\n",
@@ -459,19 +454,14 @@ static int ocfs2_truncate_file(struct inode *inode,
 			le32_to_cpu(fe->i_flags));
 
 	if (new_i_size > le64_to_cpu(fe->i_size)) {
-		mlog(0, "asked to truncate file with size (%llu) to size (%llu)!\n",
-		     (unsigned long long)le64_to_cpu(fe->i_size),
-		     (unsigned long long)new_i_size);
+		trace_ocfs2_truncate_file_error(
+			(unsigned long long)le64_to_cpu(fe->i_size),
+			(unsigned long long)new_i_size);
 		status = -EINVAL;
 		mlog_errno(status);
 		goto bail;
 	}
 
-	mlog(0, "inode %llu, i_size = %llu, new_i_size = %llu\n",
-	     (unsigned long long)le64_to_cpu(fe->i_blkno),
-	     (unsigned long long)le64_to_cpu(fe->i_size),
-	     (unsigned long long)new_i_size);
-
 	/* lets handle the simple truncate cases before doing any more
 	 * cluster locking. */
 	if (new_i_size == le64_to_cpu(fe->i_size))
@@ -525,7 +515,6 @@ bail:
 	if (!status && OCFS2_I(inode)->ip_clusters == 0)
 		status = ocfs2_try_remove_refcount_tree(inode, di_bh);
 
-	mlog_exit(status);
 	return status;
 }
 
@@ -578,8 +567,6 @@ static int __ocfs2_extend_allocation(struct inode *inode, u32 logical_start,
 	struct ocfs2_extent_tree et;
 	int did_quota = 0;
 
-	mlog_entry("(clusters_to_add = %u)\n", clusters_to_add);
-
 	/*
 	 * This function only exists for file systems which don't
 	 * support holes.
@@ -596,11 +583,6 @@ static int __ocfs2_extend_allocation(struct inode *inode, u32 logical_start,
 restart_all:
 	BUG_ON(le32_to_cpu(fe->i_clusters) != OCFS2_I(inode)->ip_clusters);
 
-	mlog(0, "extend inode %llu, i_size = %lld, di->i_clusters = %u, "
-	     "clusters_to_add = %u\n",
-	     (unsigned long long)OCFS2_I(inode)->ip_blkno,
-	     (long long)i_size_read(inode), le32_to_cpu(fe->i_clusters),
-	     clusters_to_add);
 	ocfs2_init_dinode_extent_tree(&et, INODE_CACHE(inode), bh);
 	status = ocfs2_lock_allocators(inode, &et, clusters_to_add, 0,
 				       &data_ac, &meta_ac);
@@ -620,6 +602,12 @@ restart_all:
 	}
 
 restarted_transaction:
+	trace_ocfs2_extend_allocation(
+		(unsigned long long)OCFS2_I(inode)->ip_blkno,
+		(unsigned long long)i_size_read(inode),
+		le32_to_cpu(fe->i_clusters), clusters_to_add,
+		why, restart_func);
+
 	status = dquot_alloc_space_nodirty(inode,
 			ocfs2_clusters_to_bytes(osb->sb, clusters_to_add));
 	if (status)
@@ -666,13 +654,11 @@ restarted_transaction:
 
 	if (why != RESTART_NONE && clusters_to_add) {
 		if (why == RESTART_META) {
-			mlog(0, "restarting function.\n");
 			restart_func = 1;
 			status = 0;
 		} else {
 			BUG_ON(why != RESTART_TRANS);
 
-			mlog(0, "restarting transaction.\n");
 			/* TODO: This can be more intelligent. */
 			credits = ocfs2_calc_extend_credits(osb->sb,
 							    &fe->id2.i_list,
@@ -689,11 +675,11 @@ restarted_transaction:
 		}
 	}
 
-	mlog(0, "fe: i_clusters = %u, i_size=%llu\n",
+	trace_ocfs2_extend_allocation_end(OCFS2_I(inode)->ip_blkno,
 	     le32_to_cpu(fe->i_clusters),
-	     (unsigned long long)le64_to_cpu(fe->i_size));
-	mlog(0, "inode: ip_clusters=%u, i_size=%lld\n",
-	     OCFS2_I(inode)->ip_clusters, (long long)i_size_read(inode));
+	     (unsigned long long)le64_to_cpu(fe->i_size),
+	     OCFS2_I(inode)->ip_clusters,
+	     (unsigned long long)i_size_read(inode));
 
 leave:
 	if (status < 0 && did_quota)
@@ -718,7 +704,6 @@ leave:
 	brelse(bh);
 	bh = NULL;
 
-	mlog_exit(status);
 	return status;
 }
 
@@ -785,10 +770,11 @@ static int ocfs2_write_zero_page(struct inode *inode, u64 abs_from,
 	if (!zero_to)
 		zero_to = PAGE_CACHE_SIZE;
 
-	mlog(0,
-	     "abs_from = %llu, abs_to = %llu, index = %lu, zero_from = %u, zero_to = %u\n",
-	     (unsigned long long)abs_from, (unsigned long long)abs_to,
-	     index, zero_from, zero_to);
+	trace_ocfs2_write_zero_page(
+			(unsigned long long)OCFS2_I(inode)->ip_blkno,
+			(unsigned long long)abs_from,
+			(unsigned long long)abs_to,
+			index, zero_from, zero_to);
 
 	/* We know that zero_from is block aligned */
 	for (block_start = zero_from; block_start < zero_to;
@@ -928,9 +914,10 @@ static int ocfs2_zero_extend_range(struct inode *inode, u64 range_start,
 	u64 next_pos;
 	u64 zero_pos = range_start;
 
-	mlog(0, "range_start = %llu, range_end = %llu\n",
-	     (unsigned long long)range_start,
-	     (unsigned long long)range_end);
+	trace_ocfs2_zero_extend_range(
+			(unsigned long long)OCFS2_I(inode)->ip_blkno,
+			(unsigned long long)range_start,
+			(unsigned long long)range_end);
 	BUG_ON(range_start >= range_end);
 
 	while (zero_pos < range_end) {
@@ -962,9 +949,9 @@ int ocfs2_zero_extend(struct inode *inode, struct buffer_head *di_bh,
 	struct super_block *sb = inode->i_sb;
 
 	zero_start = ocfs2_align_bytes_to_blocks(sb, i_size_read(inode));
-	mlog(0, "zero_start %llu for i_size %llu\n",
-	     (unsigned long long)zero_start,
-	     (unsigned long long)i_size_read(inode));
+	trace_ocfs2_zero_extend((unsigned long long)OCFS2_I(inode)->ip_blkno,
+				(unsigned long long)zero_start,
+				(unsigned long long)i_size_read(inode));
 	while (zero_start < zero_to_size) {
 		ret = ocfs2_zero_extend_get_range(inode, di_bh, zero_start,
 						  zero_to_size,
@@ -1113,30 +1100,20 @@ int ocfs2_setattr(struct dentry *dentry, struct iattr *attr)
 	struct dquot *transfer_to[MAXQUOTAS] = { };
 	int qtype;
 
-	mlog_entry("(0x%p, '%.*s')\n", dentry,
-	           dentry->d_name.len, dentry->d_name.name);
+	trace_ocfs2_setattr(inode, dentry,
+			    (unsigned long long)OCFS2_I(inode)->ip_blkno,
+			    dentry->d_name.len, dentry->d_name.name,
+			    attr->ia_valid, attr->ia_mode,
+			    attr->ia_uid, attr->ia_gid);
 
 	/* ensuring we don't even attempt to truncate a symlink */
 	if (S_ISLNK(inode->i_mode))
 		attr->ia_valid &= ~ATTR_SIZE;
 
-	if (attr->ia_valid & ATTR_MODE)
-		mlog(0, "mode change: %d\n", attr->ia_mode);
-	if (attr->ia_valid & ATTR_UID)
-		mlog(0, "uid change: %d\n", attr->ia_uid);
-	if (attr->ia_valid & ATTR_GID)
-		mlog(0, "gid change: %d\n", attr->ia_gid);
-	if (attr->ia_valid & ATTR_SIZE)
-		mlog(0, "size change...\n");
-	if (attr->ia_valid & (ATTR_ATIME | ATTR_MTIME | ATTR_CTIME))
-		mlog(0, "time change...\n");
-
 #define OCFS2_VALID_ATTRS (ATTR_ATIME | ATTR_MTIME | ATTR_CTIME | ATTR_SIZE \
 			   | ATTR_GID | ATTR_UID | ATTR_MODE)
-	if (!(attr->ia_valid & OCFS2_VALID_ATTRS)) {
-		mlog(0, "can't handle attrs: 0x%x\n", attr->ia_valid);
+	if (!(attr->ia_valid & OCFS2_VALID_ATTRS))
 		return 0;
-	}
 
 	status = inode_change_ok(inode, attr);
 	if (status)
@@ -1274,7 +1251,6 @@ bail:
 			mlog_errno(status);
 	}
 
-	mlog_exit(status);
 	return status;
 }
 
@@ -1287,8 +1263,6 @@ int ocfs2_getattr(struct vfsmount *mnt,
 	struct ocfs2_super *osb = sb->s_fs_info;
 	int err;
 
-	mlog_entry_void();
-
 	err = ocfs2_inode_revalidate(dentry);
 	if (err) {
 		if (err != -ENOENT)
@@ -1302,8 +1276,6 @@ int ocfs2_getattr(struct vfsmount *mnt,
 	stat->blksize = osb->s_clustersize;
 
 bail:
-	mlog_exit(err);
-
 	return err;
 }
 
@@ -1314,8 +1286,6 @@ int ocfs2_permission(struct inode *inode, int mask, unsigned int flags)
 	if (flags & IPERM_FLAG_RCU)
 		return -ECHILD;
 
-	mlog_entry_void();
-
 	ret = ocfs2_inode_lock(inode, NULL, 0);
 	if (ret) {
 		if (ret != -ENOENT)
@@ -1327,7 +1297,6 @@ int ocfs2_permission(struct inode *inode, int mask, unsigned int flags)
 
 	ocfs2_inode_unlock(inode, 0);
 out:
-	mlog_exit(ret);
 	return ret;
 }
 
@@ -1339,8 +1308,9 @@ static int __ocfs2_write_remove_suid(struct inode *inode,
 	struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
 	struct ocfs2_dinode *di;
 
-	mlog_entry("(Inode %llu, mode 0%o)\n",
-		   (unsigned long long)OCFS2_I(inode)->ip_blkno, inode->i_mode);
+	trace_ocfs2_write_remove_suid(
+			(unsigned long long)OCFS2_I(inode)->ip_blkno,
+			inode->i_mode);
 
 	handle = ocfs2_start_trans(osb, OCFS2_INODE_UPDATE_CREDITS);
 	if (IS_ERR(handle)) {
@@ -1368,7 +1338,6 @@ static int __ocfs2_write_remove_suid(struct inode *inode,
 out_trans:
 	ocfs2_commit_trans(osb, handle);
 out:
-	mlog_exit(ret);
 	return ret;
 }
 
@@ -1547,8 +1516,9 @@ static int ocfs2_zero_partial_clusters(struct inode *inode,
 	 * partial clusters here. There's no need to worry about
 	 * physical allocation - the zeroing code knows to skip holes.
 	 */
-	mlog(0, "byte start: %llu, end: %llu\n",
-	     (unsigned long long)start, (unsigned long long)end);
+	trace_ocfs2_zero_partial_clusters(
+		(unsigned long long)OCFS2_I(inode)->ip_blkno,
+		(unsigned long long)start, (unsigned long long)end);
 
 	/*
 	 * If both edges are on a cluster boundary then there's no
@@ -1572,8 +1542,8 @@ static int ocfs2_zero_partial_clusters(struct inode *inode,
 	if (tmpend > end)
 		tmpend = end;
 
-	mlog(0, "1st range: start: %llu, tmpend: %llu\n",
-	     (unsigned long long)start, (unsigned long long)tmpend);
+	trace_ocfs2_zero_partial_clusters_range1((unsigned long long)start,
+						 (unsigned long long)tmpend);
 
 	ret = ocfs2_zero_range_for_truncate(inode, handle, start, tmpend);
 	if (ret)
@@ -1587,8 +1557,8 @@ static int ocfs2_zero_partial_clusters(struct inode *inode,
 		 */
 		start = end & ~(osb->s_clustersize - 1);
 
-		mlog(0, "2nd range: start: %llu, end: %llu\n",
-		     (unsigned long long)start, (unsigned long long)end);
+		trace_ocfs2_zero_partial_clusters_range2(
+			(unsigned long long)start, (unsigned long long)end);
 
 		ret = ocfs2_zero_range_for_truncate(inode, handle, start, end);
 		if (ret)
@@ -1688,6 +1658,11 @@ static int ocfs2_remove_inode_range(struct inode *inode,
 	ocfs2_init_dinode_extent_tree(&et, INODE_CACHE(inode), di_bh);
 	ocfs2_init_dealloc_ctxt(&dealloc);
 
+	trace_ocfs2_remove_inode_range(
+			(unsigned long long)OCFS2_I(inode)->ip_blkno,
+			(unsigned long long)byte_start,
+			(unsigned long long)byte_len);
+
 	if (byte_len == 0)
 		return 0;
 
@@ -1734,11 +1709,6 @@ static int ocfs2_remove_inode_range(struct inode *inode,
 	trunc_end = (byte_start + byte_len) >> osb->s_clustersize_bits;
 	cluster_in_el = trunc_end;
 
-	mlog(0, "Inode: %llu, start: %llu, len: %llu, cstart: %u, cend: %u\n",
-	     (unsigned long long)OCFS2_I(inode)->ip_blkno,
-	     (unsigned long long)byte_start,
-	     (unsigned long long)byte_len, trunc_start, trunc_end);
-
 	ret = ocfs2_zero_partial_clusters(inode, byte_start, byte_len);
 	if (ret) {
 		mlog_errno(ret);
@@ -2093,7 +2063,7 @@ static int ocfs2_prepare_inode_for_write(struct file *file,
 	int ret = 0, meta_level = 0;
 	struct dentry *dentry = file->f_path.dentry;
 	struct inode *inode = dentry->d_inode;
-	loff_t saved_pos, end;
+	loff_t saved_pos = 0, end;
 
 	/*
 	 * We start with a read level meta lock and only jump to an ex
@@ -2132,12 +2102,10 @@ static int ocfs2_prepare_inode_for_write(struct file *file,
 
 		/* work on a copy of ppos until we're sure that we won't have
 		 * to recalculate it due to relocking. */
-		if (appending) {
+		if (appending)
 			saved_pos = i_size_read(inode);
-			mlog(0, "O_APPEND: inode->i_size=%llu\n", saved_pos);
-		} else {
+		else
 			saved_pos = *ppos;
-		}
 
 		end = saved_pos + count;
 
@@ -2208,6 +2176,10 @@ static int ocfs2_prepare_inode_for_write(struct file *file,
 		*ppos = saved_pos;
 
 out_unlock:
+	trace_ocfs2_prepare_inode_for_write(OCFS2_I(inode)->ip_blkno,
+					    saved_pos, appending, count,
+					    direct_io, has_refcount);
+
 	if (meta_level >= 0)
 		ocfs2_inode_unlock(inode, meta_level);
 
@@ -2233,10 +2205,11 @@ static ssize_t ocfs2_file_aio_write(struct kiocb *iocb,
 	int full_coherency = !(osb->s_mount_opt &
 			       OCFS2_MOUNT_COHERENCY_BUFFERED);
 
-	mlog_entry("(0x%p, %u, '%.*s')\n", file,
-		   (unsigned int)nr_segs,
-		   file->f_path.dentry->d_name.len,
-		   file->f_path.dentry->d_name.name);
+	trace_ocfs2_file_aio_write(inode, file, file->f_path.dentry,
+		(unsigned long long)OCFS2_I(inode)->ip_blkno,
+		file->f_path.dentry->d_name.len,
+		file->f_path.dentry->d_name.name,
+		(unsigned int)nr_segs);
 
 	if (iocb->ki_left == 0)
 		return 0;
@@ -2402,7 +2375,6 @@ out_sems:
 
 	if (written)
 		ret = written;
-	mlog_exit(ret);
 	return ret;
 }
 
@@ -2438,10 +2410,11 @@ static ssize_t ocfs2_file_splice_write(struct pipe_inode_info *pipe,
 		.u.file = out,
 	};
 
-	mlog_entry("(0x%p, 0x%p, %u, '%.*s')\n", out, pipe,
-		   (unsigned int)len,
-		   out->f_path.dentry->d_name.len,
-		   out->f_path.dentry->d_name.name);
+
+	trace_ocfs2_file_splice_write(inode, out, out->f_path.dentry,
+			(unsigned long long)OCFS2_I(inode)->ip_blkno,
+			out->f_path.dentry->d_name.len,
+			out->f_path.dentry->d_name.name, len);
 
 	if (pipe->inode)
 		mutex_lock_nested(&pipe->inode->i_mutex, I_MUTEX_PARENT);
@@ -2485,7 +2458,6 @@ static ssize_t ocfs2_file_splice_write(struct pipe_inode_info *pipe,
 		balance_dirty_pages_ratelimited_nr(mapping, nr_pages);
 	}
 
-	mlog_exit(ret);
 	return ret;
 }
 
@@ -2498,10 +2470,10 @@ static ssize_t ocfs2_file_splice_read(struct file *in,
 	int ret = 0, lock_level = 0;
 	struct inode *inode = in->f_path.dentry->d_inode;
 
-	mlog_entry("(0x%p, 0x%p, %u, '%.*s')\n", in, pipe,
-		   (unsigned int)len,
-		   in->f_path.dentry->d_name.len,
-		   in->f_path.dentry->d_name.name);
+	trace_ocfs2_file_splice_read(inode, in, in->f_path.dentry,
+			(unsigned long long)OCFS2_I(inode)->ip_blkno,
+			in->f_path.dentry->d_name.len,
+			in->f_path.dentry->d_name.name, len);
 
 	/*
 	 * See the comment in ocfs2_file_aio_read()
@@ -2516,7 +2488,6 @@ static ssize_t ocfs2_file_splice_read(struct file *in,
 	ret = generic_file_splice_read(in, ppos, pipe, len, flags);
 
 bail:
-	mlog_exit(ret);
 	return ret;
 }
 
@@ -2529,10 +2500,11 @@ static ssize_t ocfs2_file_aio_read(struct kiocb *iocb,
 	struct file *filp = iocb->ki_filp;
 	struct inode *inode = filp->f_path.dentry->d_inode;
 
-	mlog_entry("(0x%p, %u, '%.*s')\n", filp,
-		   (unsigned int)nr_segs,
-		   filp->f_path.dentry->d_name.len,
-		   filp->f_path.dentry->d_name.name);
+	trace_ocfs2_file_aio_read(inode, filp, filp->f_path.dentry,
+			(unsigned long long)OCFS2_I(inode)->ip_blkno,
+			filp->f_path.dentry->d_name.len,
+			filp->f_path.dentry->d_name.name, nr_segs);
+
 
 	if (!inode) {
 		ret = -EINVAL;
@@ -2578,8 +2550,7 @@ static ssize_t ocfs2_file_aio_read(struct kiocb *iocb,
 	ocfs2_inode_unlock(inode, lock_level);
 
 	ret = generic_file_aio_read(iocb, iov, nr_segs, iocb->ki_pos);
-	if (ret == -EINVAL)
-		mlog(0, "generic_file_aio_read returned -EINVAL\n");
+	trace_generic_file_aio_read_ret(ret);
 
 	/* buffered aio wouldn't have proper lock coverage today */
 	BUG_ON(ret == -EIOCBQUEUED && !(filp->f_flags & O_DIRECT));
@@ -2597,7 +2568,6 @@ bail:
 	}
 	if (rw_level != -1)
 		ocfs2_rw_unlock(inode, rw_level);
-	mlog_exit(ret);
 
 	return ret;
 }
diff --git a/fs/ocfs2/heartbeat.c b/fs/ocfs2/heartbeat.c
index 1aa863dd901f..d8208b20dc53 100644
--- a/fs/ocfs2/heartbeat.c
+++ b/fs/ocfs2/heartbeat.c
@@ -28,7 +28,6 @@
 #include <linux/types.h>
 #include <linux/highmem.h>
 
-#define MLOG_MASK_PREFIX ML_SUPER
 #include <cluster/masklog.h>
 
 #include "ocfs2.h"
@@ -37,6 +36,7 @@
 #include "heartbeat.h"
 #include "inode.h"
 #include "journal.h"
+#include "ocfs2_trace.h"
 
 #include "buffer_head_io.h"
 
@@ -66,7 +66,7 @@ void ocfs2_do_node_down(int node_num, void *data)
 
 	BUG_ON(osb->node_num == node_num);
 
-	mlog(0, "ocfs2: node down event for %d\n", node_num);
+	trace_ocfs2_do_node_down(node_num);
 
 	if (!osb->cconn) {
 		/*
diff --git a/fs/ocfs2/inode.c b/fs/ocfs2/inode.c
index 4068c6c4c6f6..b4c8bb6b8d28 100644
--- a/fs/ocfs2/inode.c
+++ b/fs/ocfs2/inode.c
@@ -31,7 +31,6 @@
 
 #include <asm/byteorder.h>
 
-#define MLOG_MASK_PREFIX ML_INODE
 #include <cluster/masklog.h>
 
 #include "ocfs2.h"
@@ -53,6 +52,7 @@
 #include "uptodate.h"
 #include "xattr.h"
 #include "refcounttree.h"
+#include "ocfs2_trace.h"
 
 #include "buffer_head_io.h"
 
@@ -131,7 +131,8 @@ struct inode *ocfs2_iget(struct ocfs2_super *osb, u64 blkno, unsigned flags,
 	struct super_block *sb = osb->sb;
 	struct ocfs2_find_inode_args args;
 
-	mlog_entry("(blkno = %llu)\n", (unsigned long long)blkno);
+	trace_ocfs2_iget_begin((unsigned long long)blkno, flags,
+			       sysfile_type);
 
 	/* Ok. By now we've either got the offsets passed to us by the
 	 * caller, or we just pulled them off the bh. Lets do some
@@ -152,16 +153,16 @@ struct inode *ocfs2_iget(struct ocfs2_super *osb, u64 blkno, unsigned flags,
 	/* inode was *not* in the inode cache. 2.6.x requires
 	 * us to do our own read_inode call and unlock it
 	 * afterwards. */
-	if (inode && inode->i_state & I_NEW) {
-		mlog(0, "Inode was not in inode cache, reading it.\n");
-		ocfs2_read_locked_inode(inode, &args);
-		unlock_new_inode(inode);
-	}
 	if (inode == NULL) {
 		inode = ERR_PTR(-ENOMEM);
 		mlog_errno(PTR_ERR(inode));
 		goto bail;
 	}
+	trace_ocfs2_iget5_locked(inode->i_state);
+	if (inode->i_state & I_NEW) {
+		ocfs2_read_locked_inode(inode, &args);
+		unlock_new_inode(inode);
+	}
 	if (is_bad_inode(inode)) {
 		iput(inode);
 		inode = ERR_PTR(-ESTALE);
@@ -170,9 +171,8 @@ struct inode *ocfs2_iget(struct ocfs2_super *osb, u64 blkno, unsigned flags,
 
 bail:
 	if (!IS_ERR(inode)) {
-		mlog(0, "returning inode with number %llu\n",
-		     (unsigned long long)OCFS2_I(inode)->ip_blkno);
-		mlog_exit_ptr(inode);
+		trace_ocfs2_iget_end(inode, 
+			(unsigned long long)OCFS2_I(inode)->ip_blkno);
 	}
 
 	return inode;
@@ -192,18 +192,17 @@ static int ocfs2_find_actor(struct inode *inode, void *opaque)
 	struct ocfs2_inode_info *oi = OCFS2_I(inode);
 	int ret = 0;
 
-	mlog_entry("(0x%p, %lu, 0x%p)\n", inode, inode->i_ino, opaque);
-
 	args = opaque;
 
 	mlog_bug_on_msg(!inode, "No inode in find actor!\n");
 
+	trace_ocfs2_find_actor(inode, inode->i_ino, opaque, args->fi_blkno);
+
 	if (oi->ip_blkno != args->fi_blkno)
 		goto bail;
 
 	ret = 1;
 bail:
-	mlog_exit(ret);
 	return ret;
 }
 
@@ -218,8 +217,6 @@ static int ocfs2_init_locked_inode(struct inode *inode, void *opaque)
 	static struct lock_class_key ocfs2_quota_ip_alloc_sem_key,
 				     ocfs2_file_ip_alloc_sem_key;
 
-	mlog_entry("inode = %p, opaque = %p\n", inode, opaque);
-
 	inode->i_ino = args->fi_ino;
 	OCFS2_I(inode)->ip_blkno = args->fi_blkno;
 	if (args->fi_sysfile_type != 0)
@@ -235,7 +232,6 @@ static int ocfs2_init_locked_inode(struct inode *inode, void *opaque)
 		lockdep_set_class(&OCFS2_I(inode)->ip_alloc_sem,
 				  &ocfs2_file_ip_alloc_sem_key);
 
-	mlog_exit(0);
 	return 0;
 }
 
@@ -246,9 +242,6 @@ void ocfs2_populate_inode(struct inode *inode, struct ocfs2_dinode *fe,
 	struct ocfs2_super *osb;
 	int use_plocks = 1;
 
-	mlog_entry("(0x%p, size:%llu)\n", inode,
-		   (unsigned long long)le64_to_cpu(fe->i_size));
-
 	sb = inode->i_sb;
 	osb = OCFS2_SB(sb);
 
@@ -300,20 +293,20 @@ void ocfs2_populate_inode(struct inode *inode, struct ocfs2_dinode *fe,
 
 	inode->i_nlink = ocfs2_read_links_count(fe);
 
+	trace_ocfs2_populate_inode(OCFS2_I(inode)->ip_blkno,
+				   le32_to_cpu(fe->i_flags));
 	if (fe->i_flags & cpu_to_le32(OCFS2_SYSTEM_FL)) {
 		OCFS2_I(inode)->ip_flags |= OCFS2_INODE_SYSTEM_FILE;
 		inode->i_flags |= S_NOQUOTA;
 	}
-
+  
 	if (fe->i_flags & cpu_to_le32(OCFS2_LOCAL_ALLOC_FL)) {
 		OCFS2_I(inode)->ip_flags |= OCFS2_INODE_BITMAP;
-		mlog(0, "local alloc inode: i_ino=%lu\n", inode->i_ino);
 	} else if (fe->i_flags & cpu_to_le32(OCFS2_BITMAP_FL)) {
 		OCFS2_I(inode)->ip_flags |= OCFS2_INODE_BITMAP;
 	} else if (fe->i_flags & cpu_to_le32(OCFS2_QUOTA_FL)) {
 		inode->i_flags |= S_NOQUOTA;
 	} else if (fe->i_flags & cpu_to_le32(OCFS2_SUPER_BLOCK_FL)) {
-		mlog(0, "superblock inode: i_ino=%lu\n", inode->i_ino);
 		/* we can't actually hit this as read_inode can't
 		 * handle superblocks today ;-) */
 		BUG();
@@ -381,7 +374,6 @@ void ocfs2_populate_inode(struct inode *inode, struct ocfs2_dinode *fe,
 	if (S_ISDIR(inode->i_mode))
 		ocfs2_resv_set_type(&OCFS2_I(inode)->ip_la_data_resv,
 				    OCFS2_RESV_FLAG_DIR);
-	mlog_exit_void();
 }
 
 static int ocfs2_read_locked_inode(struct inode *inode,
@@ -394,8 +386,6 @@ static int ocfs2_read_locked_inode(struct inode *inode,
 	int status, can_lock;
 	u32 generation = 0;
 
-	mlog_entry("(0x%p, 0x%p)\n", inode, args);
-
 	status = -EINVAL;
 	if (inode == NULL || inode->i_sb == NULL) {
 		mlog(ML_ERROR, "bad inode\n");
@@ -443,6 +433,9 @@ static int ocfs2_read_locked_inode(struct inode *inode,
 		&& !(args->fi_flags & OCFS2_FI_FLAG_ORPHAN_RECOVERY)
 		&& !ocfs2_mount_local(osb);
 
+	trace_ocfs2_read_locked_inode(
+		(unsigned long long)OCFS2_I(inode)->ip_blkno, can_lock);
+
 	/*
 	 * To maintain backwards compatibility with older versions of
 	 * ocfs2-tools, we still store the generation value for system
@@ -534,7 +527,6 @@ bail:
 	if (args && bh)
 		brelse(bh);
 
-	mlog_exit(status);
 	return status;
 }
 
@@ -551,8 +543,6 @@ static int ocfs2_truncate_for_delete(struct ocfs2_super *osb,
 	struct ocfs2_dinode *fe;
 	handle_t *handle = NULL;
 
-	mlog_entry_void();
-
 	fe = (struct ocfs2_dinode *) fe_bh->b_data;
 
 	/*
@@ -600,7 +590,6 @@ static int ocfs2_truncate_for_delete(struct ocfs2_super *osb,
 out:
 	if (handle)
 		ocfs2_commit_trans(osb, handle);
-	mlog_exit(status);
 	return status;
 }
 
@@ -696,8 +685,6 @@ static int ocfs2_check_orphan_recovery_state(struct ocfs2_super *osb,
 
 	spin_lock(&osb->osb_lock);
 	if (ocfs2_node_map_test_bit(osb, &osb->osb_recovering_orphan_dirs, slot)) {
-		mlog(0, "Recovery is happening on orphan dir %d, will skip "
-		     "this inode\n", slot);
 		ret = -EDEADLK;
 		goto out;
 	}
@@ -706,6 +693,7 @@ static int ocfs2_check_orphan_recovery_state(struct ocfs2_super *osb,
 	osb->osb_orphan_wipes[slot]++;
 out:
 	spin_unlock(&osb->osb_lock);
+	trace_ocfs2_check_orphan_recovery_state(slot, ret);
 	return ret;
 }
 
@@ -816,6 +804,10 @@ static int ocfs2_inode_is_valid_to_delete(struct inode *inode)
 	struct ocfs2_inode_info *oi = OCFS2_I(inode);
 	struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
 
+	trace_ocfs2_inode_is_valid_to_delete(current, osb->dc_task,
+					     (unsigned long long)oi->ip_blkno,
+					     oi->ip_flags);
+
 	/* We shouldn't be getting here for the root directory
 	 * inode.. */
 	if (inode == osb->root_inode) {
@@ -828,11 +820,8 @@ static int ocfs2_inode_is_valid_to_delete(struct inode *inode)
 	 * have to skip deleting this guy. That's OK though because
 	 * the node who's doing the actual deleting should handle it
 	 * anyway. */
-	if (current == osb->dc_task) {
-		mlog(0, "Skipping delete of %lu because we're currently "
-		     "in downconvert\n", inode->i_ino);
+	if (current == osb->dc_task)
 		goto bail;
-	}
 
 	spin_lock(&oi->ip_lock);
 	/* OCFS2 *never* deletes system files. This should technically
@@ -846,12 +835,9 @@ static int ocfs2_inode_is_valid_to_delete(struct inode *inode)
 
 	/* If we have allowd wipe of this inode for another node, it
 	 * will be marked here so we can safely skip it. Recovery will
-	 * cleanup any inodes we might inadvertantly skip here. */
-	if (oi->ip_flags & OCFS2_INODE_SKIP_DELETE) {
-		mlog(0, "Skipping delete of %lu because another node "
-		     "has done this for us.\n", inode->i_ino);
+	 * cleanup any inodes we might inadvertently skip here. */
+	if (oi->ip_flags & OCFS2_INODE_SKIP_DELETE)
 		goto bail_unlock;
-	}
 
 	ret = 1;
 bail_unlock:
@@ -868,28 +854,27 @@ static int ocfs2_query_inode_wipe(struct inode *inode,
 				  struct buffer_head *di_bh,
 				  int *wipe)
 {
-	int status = 0;
+	int status = 0, reason = 0;
 	struct ocfs2_inode_info *oi = OCFS2_I(inode);
 	struct ocfs2_dinode *di;
 
 	*wipe = 0;
 
+	trace_ocfs2_query_inode_wipe_begin((unsigned long long)oi->ip_blkno,
+					   inode->i_nlink);
+
 	/* While we were waiting for the cluster lock in
 	 * ocfs2_delete_inode, another node might have asked to delete
 	 * the inode. Recheck our flags to catch this. */
 	if (!ocfs2_inode_is_valid_to_delete(inode)) {
-		mlog(0, "Skipping delete of %llu because flags changed\n",
-		     (unsigned long long)oi->ip_blkno);
+		reason = 1;
 		goto bail;
 	}
 
 	/* Now that we have an up to date inode, we can double check
 	 * the link count. */
-	if (inode->i_nlink) {
-		mlog(0, "Skipping delete of %llu because nlink = %u\n",
-		     (unsigned long long)oi->ip_blkno, inode->i_nlink);
+	if (inode->i_nlink)
 		goto bail;
-	}
 
 	/* Do some basic inode verification... */
 	di = (struct ocfs2_dinode *) di_bh->b_data;
@@ -904,9 +889,7 @@ static int ocfs2_query_inode_wipe(struct inode *inode,
 		 * ORPHANED_FL not.
 		 */
 		if (di->i_dyn_features & cpu_to_le16(OCFS2_HAS_REFCOUNT_FL)) {
-			mlog(0, "Reflinked inode %llu is no longer orphaned.  "
-			     "it shouldn't be deleted\n",
-			     (unsigned long long)oi->ip_blkno);
+			reason = 2;
 			goto bail;
 		}
 
@@ -934,7 +917,7 @@ static int ocfs2_query_inode_wipe(struct inode *inode,
 	 * the inode open lock in ocfs2_read_locked_inode(). When we
 	 * get to ->delete_inode(), each node tries to convert it's
 	 * lock to an exclusive. Trylocks are serialized by the inode
-	 * meta data lock. If the upconvert suceeds, we know the inode
+	 * meta data lock. If the upconvert succeeds, we know the inode
 	 * is no longer live and can be deleted.
 	 *
 	 * Though we call this with the meta data lock held, the
@@ -943,8 +926,7 @@ static int ocfs2_query_inode_wipe(struct inode *inode,
 	status = ocfs2_try_open_lock(inode, 1);
 	if (status == -EAGAIN) {
 		status = 0;
-		mlog(0, "Skipping delete of %llu because it is in use on "
-		     "other nodes\n", (unsigned long long)oi->ip_blkno);
+		reason = 3;
 		goto bail;
 	}
 	if (status < 0) {
@@ -953,11 +935,10 @@ static int ocfs2_query_inode_wipe(struct inode *inode,
 	}
 
 	*wipe = 1;
-	mlog(0, "Inode %llu is ok to wipe from orphan dir %u\n",
-	     (unsigned long long)oi->ip_blkno,
-	     le16_to_cpu(di->i_orphaned_slot));
+	trace_ocfs2_query_inode_wipe_succ(le16_to_cpu(di->i_orphaned_slot));
 
 bail:
+	trace_ocfs2_query_inode_wipe_end(status, reason);
 	return status;
 }
 
@@ -967,8 +948,8 @@ bail:
 static void ocfs2_cleanup_delete_inode(struct inode *inode,
 				       int sync_data)
 {
-	mlog(0, "Cleanup inode %llu, sync = %d\n",
-	     (unsigned long long)OCFS2_I(inode)->ip_blkno, sync_data);
+	trace_ocfs2_cleanup_delete_inode(
+		(unsigned long long)OCFS2_I(inode)->ip_blkno, sync_data);
 	if (sync_data)
 		write_inode_now(inode, 1);
 	truncate_inode_pages(&inode->i_data, 0);
@@ -980,15 +961,15 @@ static void ocfs2_delete_inode(struct inode *inode)
 	sigset_t oldset;
 	struct buffer_head *di_bh = NULL;
 
-	mlog_entry("(inode->i_ino = %lu)\n", inode->i_ino);
+	trace_ocfs2_delete_inode(inode->i_ino,
+				 (unsigned long long)OCFS2_I(inode)->ip_blkno,
+				 is_bad_inode(inode));
 
 	/* When we fail in read_inode() we mark inode as bad. The second test
 	 * catches the case when inode allocation fails before allocating
 	 * a block for inode. */
-	if (is_bad_inode(inode) || !OCFS2_I(inode)->ip_blkno) {
-		mlog(0, "Skipping delete of bad inode\n");
+	if (is_bad_inode(inode) || !OCFS2_I(inode)->ip_blkno)
 		goto bail;
-	}
 
 	dquot_initialize(inode);
 
@@ -1080,7 +1061,7 @@ bail_unlock_nfs_sync:
 bail_unblock:
 	ocfs2_unblock_signals(&oldset);
 bail:
-	mlog_exit_void();
+	return;
 }
 
 static void ocfs2_clear_inode(struct inode *inode)
@@ -1088,11 +1069,9 @@ static void ocfs2_clear_inode(struct inode *inode)
 	int status;
 	struct ocfs2_inode_info *oi = OCFS2_I(inode);
 
-	mlog_entry_void();
-
 	end_writeback(inode);
-	mlog(0, "Clearing inode: %llu, nlink = %u\n",
-	     (unsigned long long)OCFS2_I(inode)->ip_blkno, inode->i_nlink);
+	trace_ocfs2_clear_inode((unsigned long long)oi->ip_blkno,
+				inode->i_nlink);
 
 	mlog_bug_on_msg(OCFS2_SB(inode->i_sb) == NULL,
 			"Inode=%lu\n", inode->i_ino);
@@ -1181,8 +1160,6 @@ static void ocfs2_clear_inode(struct inode *inode)
 	 */
 	jbd2_journal_release_jbd_inode(OCFS2_SB(inode->i_sb)->journal->j_journal,
 				       &oi->ip_jinode);
-
-	mlog_exit_void();
 }
 
 void ocfs2_evict_inode(struct inode *inode)
@@ -1204,17 +1181,14 @@ int ocfs2_drop_inode(struct inode *inode)
 	struct ocfs2_inode_info *oi = OCFS2_I(inode);
 	int res;
 
-	mlog_entry_void();
-
-	mlog(0, "Drop inode %llu, nlink = %u, ip_flags = 0x%x\n",
-	     (unsigned long long)oi->ip_blkno, inode->i_nlink, oi->ip_flags);
+	trace_ocfs2_drop_inode((unsigned long long)oi->ip_blkno,
+				inode->i_nlink, oi->ip_flags);
 
 	if (oi->ip_flags & OCFS2_INODE_MAYBE_ORPHANED)
 		res = 1;
 	else
 		res = generic_drop_inode(inode);
 
-	mlog_exit_void();
 	return res;
 }
 
@@ -1226,11 +1200,11 @@ int ocfs2_inode_revalidate(struct dentry *dentry)
 	struct inode *inode = dentry->d_inode;
 	int status = 0;
 
-	mlog_entry("(inode = 0x%p, ino = %llu)\n", inode,
-		   inode ? (unsigned long long)OCFS2_I(inode)->ip_blkno : 0ULL);
+	trace_ocfs2_inode_revalidate(inode,
+		inode ? (unsigned long long)OCFS2_I(inode)->ip_blkno : 0ULL,
+		inode ? (unsigned long long)OCFS2_I(inode)->ip_flags : 0);
 
 	if (!inode) {
-		mlog(0, "eep, no inode!\n");
 		status = -ENOENT;
 		goto bail;
 	}
@@ -1238,7 +1212,6 @@ int ocfs2_inode_revalidate(struct dentry *dentry)
 	spin_lock(&OCFS2_I(inode)->ip_lock);
 	if (OCFS2_I(inode)->ip_flags & OCFS2_INODE_DELETED) {
 		spin_unlock(&OCFS2_I(inode)->ip_lock);
-		mlog(0, "inode deleted!\n");
 		status = -ENOENT;
 		goto bail;
 	}
@@ -1254,8 +1227,6 @@ int ocfs2_inode_revalidate(struct dentry *dentry)
 	}
 	ocfs2_inode_unlock(inode, 0);
 bail:
-	mlog_exit(status);
-
 	return status;
 }
 
@@ -1271,8 +1242,7 @@ int ocfs2_mark_inode_dirty(handle_t *handle,
 	int status;
 	struct ocfs2_dinode *fe = (struct ocfs2_dinode *) bh->b_data;
 
-	mlog_entry("(inode %llu)\n",
-		   (unsigned long long)OCFS2_I(inode)->ip_blkno);
+	trace_ocfs2_mark_inode_dirty((unsigned long long)OCFS2_I(inode)->ip_blkno);
 
 	status = ocfs2_journal_access_di(handle, INODE_CACHE(inode), bh,
 					 OCFS2_JOURNAL_ACCESS_WRITE);
@@ -1302,7 +1272,6 @@ int ocfs2_mark_inode_dirty(handle_t *handle,
 
 	ocfs2_journal_dirty(handle, bh);
 leave:
-	mlog_exit(status);
 	return status;
 }
 
@@ -1345,8 +1314,7 @@ int ocfs2_validate_inode_block(struct super_block *sb,
 	int rc;
 	struct ocfs2_dinode *di = (struct ocfs2_dinode *)bh->b_data;
 
-	mlog(0, "Validating dinode %llu\n",
-	     (unsigned long long)bh->b_blocknr);
+	trace_ocfs2_validate_inode_block((unsigned long long)bh->b_blocknr);
 
 	BUG_ON(!buffer_uptodate(bh));
 
diff --git a/fs/ocfs2/ioctl.c b/fs/ocfs2/ioctl.c
index 09de77ce002a..8f13c5989eae 100644
--- a/fs/ocfs2/ioctl.c
+++ b/fs/ocfs2/ioctl.c
@@ -9,7 +9,6 @@
 #include <linux/mount.h>
 #include <linux/compat.h>
 
-#define MLOG_MASK_PREFIX ML_INODE
 #include <cluster/masklog.h>
 
 #include "ocfs2.h"
@@ -46,6 +45,22 @@ static inline void __o2info_set_request_error(struct ocfs2_info_request *kreq,
 #define o2info_set_request_error(a, b) \
 		__o2info_set_request_error((struct ocfs2_info_request *)&(a), b)
 
+static inline void __o2info_set_request_filled(struct ocfs2_info_request *req)
+{
+	req->ir_flags |= OCFS2_INFO_FL_FILLED;
+}
+
+#define o2info_set_request_filled(a) \
+		__o2info_set_request_filled((struct ocfs2_info_request *)&(a))
+
+static inline void __o2info_clear_request_filled(struct ocfs2_info_request *req)
+{
+	req->ir_flags &= ~OCFS2_INFO_FL_FILLED;
+}
+
+#define o2info_clear_request_filled(a) \
+		__o2info_clear_request_filled((struct ocfs2_info_request *)&(a))
+
 static int ocfs2_get_inode_attr(struct inode *inode, unsigned *flags)
 {
 	int status;
@@ -59,7 +74,6 @@ static int ocfs2_get_inode_attr(struct inode *inode, unsigned *flags)
 	*flags = OCFS2_I(inode)->ip_attr;
 	ocfs2_inode_unlock(inode, 0);
 
-	mlog_exit(status);
 	return status;
 }
 
@@ -125,7 +139,6 @@ bail:
 
 	brelse(bh);
 
-	mlog_exit(status);
 	return status;
 }
 
@@ -139,7 +152,8 @@ int ocfs2_info_handle_blocksize(struct inode *inode,
 		goto bail;
 
 	oib.ib_blocksize = inode->i_sb->s_blocksize;
-	oib.ib_req.ir_flags |= OCFS2_INFO_FL_FILLED;
+
+	o2info_set_request_filled(oib);
 
 	if (o2info_to_user(oib, req))
 		goto bail;
@@ -163,7 +177,8 @@ int ocfs2_info_handle_clustersize(struct inode *inode,
 		goto bail;
 
 	oic.ic_clustersize = osb->s_clustersize;
-	oic.ic_req.ir_flags |= OCFS2_INFO_FL_FILLED;
+
+	o2info_set_request_filled(oic);
 
 	if (o2info_to_user(oic, req))
 		goto bail;
@@ -187,7 +202,8 @@ int ocfs2_info_handle_maxslots(struct inode *inode,
 		goto bail;
 
 	oim.im_max_slots = osb->max_slots;
-	oim.im_req.ir_flags |= OCFS2_INFO_FL_FILLED;
+
+	o2info_set_request_filled(oim);
 
 	if (o2info_to_user(oim, req))
 		goto bail;
@@ -211,7 +227,8 @@ int ocfs2_info_handle_label(struct inode *inode,
 		goto bail;
 
 	memcpy(oil.il_label, osb->vol_label, OCFS2_MAX_VOL_LABEL_LEN);
-	oil.il_req.ir_flags |= OCFS2_INFO_FL_FILLED;
+
+	o2info_set_request_filled(oil);
 
 	if (o2info_to_user(oil, req))
 		goto bail;
@@ -235,7 +252,8 @@ int ocfs2_info_handle_uuid(struct inode *inode,
 		goto bail;
 
 	memcpy(oiu.iu_uuid_str, osb->uuid_str, OCFS2_TEXT_UUID_LEN + 1);
-	oiu.iu_req.ir_flags |= OCFS2_INFO_FL_FILLED;
+
+	o2info_set_request_filled(oiu);
 
 	if (o2info_to_user(oiu, req))
 		goto bail;
@@ -261,7 +279,8 @@ int ocfs2_info_handle_fs_features(struct inode *inode,
 	oif.if_compat_features = osb->s_feature_compat;
 	oif.if_incompat_features = osb->s_feature_incompat;
 	oif.if_ro_compat_features = osb->s_feature_ro_compat;
-	oif.if_req.ir_flags |= OCFS2_INFO_FL_FILLED;
+
+	o2info_set_request_filled(oif);
 
 	if (o2info_to_user(oif, req))
 		goto bail;
@@ -286,7 +305,7 @@ int ocfs2_info_handle_journal_size(struct inode *inode,
 
 	oij.ij_journal_size = osb->journal->j_inode->i_size;
 
-	oij.ij_req.ir_flags |= OCFS2_INFO_FL_FILLED;
+	o2info_set_request_filled(oij);
 
 	if (o2info_to_user(oij, req))
 		goto bail;
@@ -308,7 +327,7 @@ int ocfs2_info_handle_unknown(struct inode *inode,
 	if (o2info_from_user(oir, req))
 		goto bail;
 
-	oir.ir_flags &= ~OCFS2_INFO_FL_FILLED;
+	o2info_clear_request_filled(oir);
 
 	if (o2info_to_user(oir, req))
 		goto bail;
diff --git a/fs/ocfs2/journal.c b/fs/ocfs2/journal.c
index faa2303dbf0a..b141a44605ca 100644
--- a/fs/ocfs2/journal.c
+++ b/fs/ocfs2/journal.c
@@ -31,7 +31,6 @@
 #include <linux/time.h>
 #include <linux/random.h>
 
-#define MLOG_MASK_PREFIX ML_JOURNAL
 #include <cluster/masklog.h>
 
 #include "ocfs2.h"
@@ -52,6 +51,7 @@
 #include "quota.h"
 
 #include "buffer_head_io.h"
+#include "ocfs2_trace.h"
 
 DEFINE_SPINLOCK(trans_inc_lock);
 
@@ -303,16 +303,15 @@ static int ocfs2_commit_cache(struct ocfs2_super *osb)
 	unsigned int flushed;
 	struct ocfs2_journal *journal = NULL;
 
-	mlog_entry_void();
-
 	journal = osb->journal;
 
 	/* Flush all pending commits and checkpoint the journal. */
 	down_write(&journal->j_trans_barrier);
 
-	if (atomic_read(&journal->j_num_trans) == 0) {
+	flushed = atomic_read(&journal->j_num_trans);
+	trace_ocfs2_commit_cache_begin(flushed);
+	if (flushed == 0) {
 		up_write(&journal->j_trans_barrier);
-		mlog(0, "No transactions for me to flush!\n");
 		goto finally;
 	}
 
@@ -331,13 +330,11 @@ static int ocfs2_commit_cache(struct ocfs2_super *osb)
 	atomic_set(&journal->j_num_trans, 0);
 	up_write(&journal->j_trans_barrier);
 
-	mlog(0, "commit_thread: flushed transaction %lu (%u handles)\n",
-	     journal->j_trans_id, flushed);
+	trace_ocfs2_commit_cache_end(journal->j_trans_id, flushed);
 
 	ocfs2_wake_downconvert_thread(osb);
 	wake_up(&journal->j_checkpointed);
 finally:
-	mlog_exit(status);
 	return status;
 }
 
@@ -425,9 +422,8 @@ int ocfs2_extend_trans(handle_t *handle, int nblocks)
 		return 0;
 
 	old_nblocks = handle->h_buffer_credits;
-	mlog_entry_void();
 
-	mlog(0, "Trying to extend transaction by %d blocks\n", nblocks);
+	trace_ocfs2_extend_trans(old_nblocks, nblocks);
 
 #ifdef CONFIG_OCFS2_DEBUG_FS
 	status = 1;
@@ -440,9 +436,7 @@ int ocfs2_extend_trans(handle_t *handle, int nblocks)
 #endif
 
 	if (status > 0) {
-		mlog(0,
-		     "jbd2_journal_extend failed, trying "
-		     "jbd2_journal_restart\n");
+		trace_ocfs2_extend_trans_restart(old_nblocks + nblocks);
 		status = jbd2_journal_restart(handle,
 					      old_nblocks + nblocks);
 		if (status < 0) {
@@ -453,8 +447,6 @@ int ocfs2_extend_trans(handle_t *handle, int nblocks)
 
 	status = 0;
 bail:
-
-	mlog_exit(status);
 	return status;
 }
 
@@ -622,12 +614,9 @@ static int __ocfs2_journal_access(handle_t *handle,
 	BUG_ON(!handle);
 	BUG_ON(!bh);
 
-	mlog_entry("bh->b_blocknr=%llu, type=%d (\"%s\"), bh->b_size = %zu\n",
-		   (unsigned long long)bh->b_blocknr, type,
-		   (type == OCFS2_JOURNAL_ACCESS_CREATE) ?
-		   "OCFS2_JOURNAL_ACCESS_CREATE" :
-		   "OCFS2_JOURNAL_ACCESS_WRITE",
-		   bh->b_size);
+	trace_ocfs2_journal_access(
+		(unsigned long long)ocfs2_metadata_cache_owner(ci),
+		(unsigned long long)bh->b_blocknr, type, bh->b_size);
 
 	/* we can safely remove this assertion after testing. */
 	if (!buffer_uptodate(bh)) {
@@ -668,7 +657,6 @@ static int __ocfs2_journal_access(handle_t *handle,
 		mlog(ML_ERROR, "Error %d getting %d access to buffer!\n",
 		     status, type);
 
-	mlog_exit(status);
 	return status;
 }
 
@@ -737,13 +725,10 @@ void ocfs2_journal_dirty(handle_t *handle, struct buffer_head *bh)
 {
 	int status;
 
-	mlog_entry("(bh->b_blocknr=%llu)\n",
-		   (unsigned long long)bh->b_blocknr);
+	trace_ocfs2_journal_dirty((unsigned long long)bh->b_blocknr);
 
 	status = jbd2_journal_dirty_metadata(handle, bh);
 	BUG_ON(status);
-
-	mlog_exit_void();
 }
 
 #define OCFS2_DEFAULT_COMMIT_INTERVAL	(HZ * JBD2_DEFAULT_MAX_COMMIT_AGE)
@@ -775,8 +760,6 @@ int ocfs2_journal_init(struct ocfs2_journal *journal, int *dirty)
 	struct ocfs2_super *osb;
 	int inode_lock = 0;
 
-	mlog_entry_void();
-
 	BUG_ON(!journal);
 
 	osb = journal->j_osb;
@@ -820,10 +803,9 @@ int ocfs2_journal_init(struct ocfs2_journal *journal, int *dirty)
 		goto done;
 	}
 
-	mlog(0, "inode->i_size = %lld\n", inode->i_size);
-	mlog(0, "inode->i_blocks = %llu\n",
-			(unsigned long long)inode->i_blocks);
-	mlog(0, "inode->ip_clusters = %u\n", OCFS2_I(inode)->ip_clusters);
+	trace_ocfs2_journal_init(inode->i_size,
+				 (unsigned long long)inode->i_blocks,
+				 OCFS2_I(inode)->ip_clusters);
 
 	/* call the kernels journal init function now */
 	j_journal = jbd2_journal_init_inode(inode);
@@ -833,8 +815,7 @@ int ocfs2_journal_init(struct ocfs2_journal *journal, int *dirty)
 		goto done;
 	}
 
-	mlog(0, "Returned from jbd2_journal_init_inode\n");
-	mlog(0, "j_journal->j_maxlen = %u\n", j_journal->j_maxlen);
+	trace_ocfs2_journal_init_maxlen(j_journal->j_maxlen);
 
 	*dirty = (le32_to_cpu(di->id1.journal1.ij_flags) &
 		  OCFS2_JOURNAL_DIRTY_FL);
@@ -859,7 +840,6 @@ done:
 		}
 	}
 
-	mlog_exit(status);
 	return status;
 }
 
@@ -882,8 +862,6 @@ static int ocfs2_journal_toggle_dirty(struct ocfs2_super *osb,
 	struct buffer_head *bh = journal->j_bh;
 	struct ocfs2_dinode *fe;
 
-	mlog_entry_void();
-
 	fe = (struct ocfs2_dinode *)bh->b_data;
 
 	/* The journal bh on the osb always comes from ocfs2_journal_init()
@@ -906,7 +884,6 @@ static int ocfs2_journal_toggle_dirty(struct ocfs2_super *osb,
 	if (status < 0)
 		mlog_errno(status);
 
-	mlog_exit(status);
 	return status;
 }
 
@@ -921,8 +898,6 @@ void ocfs2_journal_shutdown(struct ocfs2_super *osb)
 	struct inode *inode = NULL;
 	int num_running_trans = 0;
 
-	mlog_entry_void();
-
 	BUG_ON(!osb);
 
 	journal = osb->journal;
@@ -939,10 +914,7 @@ void ocfs2_journal_shutdown(struct ocfs2_super *osb)
 		BUG();
 
 	num_running_trans = atomic_read(&(osb->journal->j_num_trans));
-	if (num_running_trans > 0)
-		mlog(0, "Shutting down journal: must wait on %d "
-		     "running transactions!\n",
-		     num_running_trans);
+	trace_ocfs2_journal_shutdown(num_running_trans);
 
 	/* Do a commit_cache here. It will flush our journal, *and*
 	 * release any locks that are still held.
@@ -955,7 +927,7 @@ void ocfs2_journal_shutdown(struct ocfs2_super *osb)
 	 * completely destroy the journal. */
 	if (osb->commit_task) {
 		/* Wait for the commit thread */
-		mlog(0, "Waiting for ocfs2commit to exit....\n");
+		trace_ocfs2_journal_shutdown_wait(osb->commit_task);
 		kthread_stop(osb->commit_task);
 		osb->commit_task = NULL;
 	}
@@ -998,7 +970,6 @@ void ocfs2_journal_shutdown(struct ocfs2_super *osb)
 done:
 	if (inode)
 		iput(inode);
-	mlog_exit_void();
 }
 
 static void ocfs2_clear_journal_error(struct super_block *sb,
@@ -1024,8 +995,6 @@ int ocfs2_journal_load(struct ocfs2_journal *journal, int local, int replayed)
 	int status = 0;
 	struct ocfs2_super *osb;
 
-	mlog_entry_void();
-
 	BUG_ON(!journal);
 
 	osb = journal->j_osb;
@@ -1059,7 +1028,6 @@ int ocfs2_journal_load(struct ocfs2_journal *journal, int local, int replayed)
 		osb->commit_task = NULL;
 
 done:
-	mlog_exit(status);
 	return status;
 }
 
@@ -1070,8 +1038,6 @@ int ocfs2_journal_wipe(struct ocfs2_journal *journal, int full)
 {
 	int status;
 
-	mlog_entry_void();
-
 	BUG_ON(!journal);
 
 	status = jbd2_journal_wipe(journal->j_journal, full);
@@ -1085,7 +1051,6 @@ int ocfs2_journal_wipe(struct ocfs2_journal *journal, int full)
 		mlog_errno(status);
 
 bail:
-	mlog_exit(status);
 	return status;
 }
 
@@ -1124,8 +1089,6 @@ static int ocfs2_force_read_journal(struct inode *inode)
 #define CONCURRENT_JOURNAL_FILL 32ULL
 	struct buffer_head *bhs[CONCURRENT_JOURNAL_FILL];
 
-	mlog_entry_void();
-
 	memset(bhs, 0, sizeof(struct buffer_head *) * CONCURRENT_JOURNAL_FILL);
 
 	num_blocks = ocfs2_blocks_for_bytes(inode->i_sb, inode->i_size);
@@ -1161,7 +1124,6 @@ static int ocfs2_force_read_journal(struct inode *inode)
 bail:
 	for(i = 0; i < CONCURRENT_JOURNAL_FILL; i++)
 		brelse(bhs[i]);
-	mlog_exit(status);
 	return status;
 }
 
@@ -1185,7 +1147,7 @@ struct ocfs2_la_recovery_item {
  */
 void ocfs2_complete_recovery(struct work_struct *work)
 {
-	int ret;
+	int ret = 0;
 	struct ocfs2_journal *journal =
 		container_of(work, struct ocfs2_journal, j_recovery_work);
 	struct ocfs2_super *osb = journal->j_osb;
@@ -1194,9 +1156,8 @@ void ocfs2_complete_recovery(struct work_struct *work)
 	struct ocfs2_quota_recovery *qrec;
 	LIST_HEAD(tmp_la_list);
 
-	mlog_entry_void();
-
-	mlog(0, "completing recovery from keventd\n");
+	trace_ocfs2_complete_recovery(
+		(unsigned long long)OCFS2_I(journal->j_inode)->ip_blkno);
 
 	spin_lock(&journal->j_lock);
 	list_splice_init(&journal->j_la_cleanups, &tmp_la_list);
@@ -1205,15 +1166,18 @@ void ocfs2_complete_recovery(struct work_struct *work)
 	list_for_each_entry_safe(item, n, &tmp_la_list, lri_list) {
 		list_del_init(&item->lri_list);
 
-		mlog(0, "Complete recovery for slot %d\n", item->lri_slot);
-
 		ocfs2_wait_on_quotas(osb);
 
 		la_dinode = item->lri_la_dinode;
-		if (la_dinode) {
-			mlog(0, "Clean up local alloc %llu\n",
-			     (unsigned long long)le64_to_cpu(la_dinode->i_blkno));
+		tl_dinode = item->lri_tl_dinode;
+		qrec = item->lri_qrec;
+
+		trace_ocfs2_complete_recovery_slot(item->lri_slot,
+			la_dinode ? le64_to_cpu(la_dinode->i_blkno) : 0,
+			tl_dinode ? le64_to_cpu(tl_dinode->i_blkno) : 0,
+			qrec);
 
+		if (la_dinode) {
 			ret = ocfs2_complete_local_alloc_recovery(osb,
 								  la_dinode);
 			if (ret < 0)
@@ -1222,11 +1186,7 @@ void ocfs2_complete_recovery(struct work_struct *work)
 			kfree(la_dinode);
 		}
 
-		tl_dinode = item->lri_tl_dinode;
 		if (tl_dinode) {
-			mlog(0, "Clean up truncate log %llu\n",
-			     (unsigned long long)le64_to_cpu(tl_dinode->i_blkno));
-
 			ret = ocfs2_complete_truncate_log_recovery(osb,
 								   tl_dinode);
 			if (ret < 0)
@@ -1239,9 +1199,7 @@ void ocfs2_complete_recovery(struct work_struct *work)
 		if (ret < 0)
 			mlog_errno(ret);
 
-		qrec = item->lri_qrec;
 		if (qrec) {
-			mlog(0, "Recovering quota files");
 			ret = ocfs2_finish_quota_recovery(osb, qrec,
 							  item->lri_slot);
 			if (ret < 0)
@@ -1252,8 +1210,7 @@ void ocfs2_complete_recovery(struct work_struct *work)
 		kfree(item);
 	}
 
-	mlog(0, "Recovery completion\n");
-	mlog_exit_void();
+	trace_ocfs2_complete_recovery_end(ret);
 }
 
 /* NOTE: This function always eats your references to la_dinode and
@@ -1339,8 +1296,6 @@ static int __ocfs2_recovery_thread(void *arg)
 	int rm_quota_used = 0, i;
 	struct ocfs2_quota_recovery *qrec;
 
-	mlog_entry_void();
-
 	status = ocfs2_wait_on_mount(osb);
 	if (status < 0) {
 		goto bail;
@@ -1372,15 +1327,12 @@ restart:
 		 * clear it until ocfs2_recover_node() has succeeded. */
 		node_num = rm->rm_entries[0];
 		spin_unlock(&osb->osb_lock);
-		mlog(0, "checking node %d\n", node_num);
 		slot_num = ocfs2_node_num_to_slot(osb, node_num);
+		trace_ocfs2_recovery_thread_node(node_num, slot_num);
 		if (slot_num == -ENOENT) {
 			status = 0;
-			mlog(0, "no slot for this node, so no recovery"
-			     "required.\n");
 			goto skip_recovery;
 		}
-		mlog(0, "node %d was using slot %d\n", node_num, slot_num);
 
 		/* It is a bit subtle with quota recovery. We cannot do it
 		 * immediately because we have to obtain cluster locks from
@@ -1407,7 +1359,7 @@ skip_recovery:
 		spin_lock(&osb->osb_lock);
 	}
 	spin_unlock(&osb->osb_lock);
-	mlog(0, "All nodes recovered\n");
+	trace_ocfs2_recovery_thread_end(status);
 
 	/* Refresh all journal recovery generations from disk */
 	status = ocfs2_check_journals_nolocks(osb);
@@ -1416,7 +1368,7 @@ skip_recovery:
 		mlog_errno(status);
 
 	/* Now it is right time to recover quotas... We have to do this under
-	 * superblock lock so that noone can start using the slot (and crash)
+	 * superblock lock so that no one can start using the slot (and crash)
 	 * before we recover it */
 	for (i = 0; i < rm_quota_used; i++) {
 		qrec = ocfs2_begin_quota_recovery(osb, rm_quota[i]);
@@ -1451,7 +1403,6 @@ bail:
 	if (rm_quota)
 		kfree(rm_quota);
 
-	mlog_exit(status);
 	/* no one is callint kthread_stop() for us so the kthread() api
 	 * requires that we call do_exit().  And it isn't exported, but
 	 * complete_and_exit() seems to be a minimal wrapper around it. */
@@ -1461,19 +1412,15 @@ bail:
 
 void ocfs2_recovery_thread(struct ocfs2_super *osb, int node_num)
 {
-	mlog_entry("(node_num=%d, osb->node_num = %d)\n",
-		   node_num, osb->node_num);
-
 	mutex_lock(&osb->recovery_lock);
-	if (osb->disable_recovery)
-		goto out;
 
-	/* People waiting on recovery will wait on
-	 * the recovery map to empty. */
-	if (ocfs2_recovery_map_set(osb, node_num))
-		mlog(0, "node %d already in recovery map.\n", node_num);
+	trace_ocfs2_recovery_thread(node_num, osb->node_num,
+		osb->disable_recovery, osb->recovery_thread_task,
+		osb->disable_recovery ?
+		-1 : ocfs2_recovery_map_set(osb, node_num));
 
-	mlog(0, "starting recovery thread...\n");
+	if (osb->disable_recovery)
+		goto out;
 
 	if (osb->recovery_thread_task)
 		goto out;
@@ -1488,8 +1435,6 @@ void ocfs2_recovery_thread(struct ocfs2_super *osb, int node_num)
 out:
 	mutex_unlock(&osb->recovery_lock);
 	wake_up(&osb->recovery_event);
-
-	mlog_exit_void();
 }
 
 static int ocfs2_read_journal_inode(struct ocfs2_super *osb,
@@ -1563,7 +1508,7 @@ static int ocfs2_replay_journal(struct ocfs2_super *osb,
 	 * If not, it needs recovery.
 	 */
 	if (osb->slot_recovery_generations[slot_num] != slot_reco_gen) {
-		mlog(0, "Slot %u already recovered (old/new=%u/%u)\n", slot_num,
+		trace_ocfs2_replay_journal_recovered(slot_num,
 		     osb->slot_recovery_generations[slot_num], slot_reco_gen);
 		osb->slot_recovery_generations[slot_num] = slot_reco_gen;
 		status = -EBUSY;
@@ -1574,7 +1519,7 @@ static int ocfs2_replay_journal(struct ocfs2_super *osb,
 
 	status = ocfs2_inode_lock_full(inode, &bh, 1, OCFS2_META_LOCK_RECOVERY);
 	if (status < 0) {
-		mlog(0, "status returned from ocfs2_inode_lock=%d\n", status);
+		trace_ocfs2_replay_journal_lock_err(status);
 		if (status != -ERESTARTSYS)
 			mlog(ML_ERROR, "Could not lock journal!\n");
 		goto done;
@@ -1587,7 +1532,7 @@ static int ocfs2_replay_journal(struct ocfs2_super *osb,
 	slot_reco_gen = ocfs2_get_recovery_generation(fe);
 
 	if (!(flags & OCFS2_JOURNAL_DIRTY_FL)) {
-		mlog(0, "No recovery required for node %d\n", node_num);
+		trace_ocfs2_replay_journal_skip(node_num);
 		/* Refresh recovery generation for the slot */
 		osb->slot_recovery_generations[slot_num] = slot_reco_gen;
 		goto done;
@@ -1608,7 +1553,6 @@ static int ocfs2_replay_journal(struct ocfs2_super *osb,
 		goto done;
 	}
 
-	mlog(0, "calling journal_init_inode\n");
 	journal = jbd2_journal_init_inode(inode);
 	if (journal == NULL) {
 		mlog(ML_ERROR, "Linux journal layer error\n");
@@ -1628,7 +1572,6 @@ static int ocfs2_replay_journal(struct ocfs2_super *osb,
 	ocfs2_clear_journal_error(osb->sb, journal, slot_num);
 
 	/* wipe the journal */
-	mlog(0, "flushing the journal.\n");
 	jbd2_journal_lock_updates(journal);
 	status = jbd2_journal_flush(journal);
 	jbd2_journal_unlock_updates(journal);
@@ -1665,7 +1608,6 @@ done:
 
 	brelse(bh);
 
-	mlog_exit(status);
 	return status;
 }
 
@@ -1688,8 +1630,7 @@ static int ocfs2_recover_node(struct ocfs2_super *osb,
 	struct ocfs2_dinode *la_copy = NULL;
 	struct ocfs2_dinode *tl_copy = NULL;
 
-	mlog_entry("(node_num=%d, slot_num=%d, osb->node_num = %d)\n",
-		   node_num, slot_num, osb->node_num);
+	trace_ocfs2_recover_node(node_num, slot_num, osb->node_num);
 
 	/* Should not ever be called to recover ourselves -- in that
 	 * case we should've called ocfs2_journal_load instead. */
@@ -1698,9 +1639,7 @@ static int ocfs2_recover_node(struct ocfs2_super *osb,
 	status = ocfs2_replay_journal(osb, node_num, slot_num);
 	if (status < 0) {
 		if (status == -EBUSY) {
-			mlog(0, "Skipping recovery for slot %u (node %u) "
-			     "as another node has recovered it\n", slot_num,
-			     node_num);
+			trace_ocfs2_recover_node_skip(slot_num, node_num);
 			status = 0;
 			goto done;
 		}
@@ -1735,7 +1674,6 @@ static int ocfs2_recover_node(struct ocfs2_super *osb,
 	status = 0;
 done:
 
-	mlog_exit(status);
 	return status;
 }
 
@@ -1808,8 +1746,8 @@ int ocfs2_mark_dead_nodes(struct ocfs2_super *osb)
 		spin_lock(&osb->osb_lock);
 		osb->slot_recovery_generations[i] = gen;
 
-		mlog(0, "Slot %u recovery generation is %u\n", i,
-		     osb->slot_recovery_generations[i]);
+		trace_ocfs2_mark_dead_nodes(i,
+					    osb->slot_recovery_generations[i]);
 
 		if (i == osb->slot_num) {
 			spin_unlock(&osb->osb_lock);
@@ -1845,7 +1783,6 @@ int ocfs2_mark_dead_nodes(struct ocfs2_super *osb)
 
 	status = 0;
 bail:
-	mlog_exit(status);
 	return status;
 }
 
@@ -1884,11 +1821,12 @@ void ocfs2_queue_orphan_scan(struct ocfs2_super *osb)
 
 	os = &osb->osb_orphan_scan;
 
-	mlog(0, "Begin orphan scan\n");
-
 	if (atomic_read(&os->os_state) == ORPHAN_SCAN_INACTIVE)
 		goto out;
 
+	trace_ocfs2_queue_orphan_scan_begin(os->os_count, os->os_seqno,
+					    atomic_read(&os->os_state));
+
 	status = ocfs2_orphan_scan_lock(osb, &seqno);
 	if (status < 0) {
 		if (status != -EAGAIN)
@@ -1918,7 +1856,8 @@ void ocfs2_queue_orphan_scan(struct ocfs2_super *osb)
 unlock:
 	ocfs2_orphan_scan_unlock(osb, seqno);
 out:
-	mlog(0, "Orphan scan completed\n");
+	trace_ocfs2_queue_orphan_scan_end(os->os_count, os->os_seqno,
+					  atomic_read(&os->os_state));
 	return;
 }
 
@@ -2002,8 +1941,7 @@ static int ocfs2_orphan_filldir(void *priv, const char *name, int name_len,
 	if (IS_ERR(iter))
 		return 0;
 
-	mlog(0, "queue orphan %llu\n",
-	     (unsigned long long)OCFS2_I(iter)->ip_blkno);
+	trace_ocfs2_orphan_filldir((unsigned long long)OCFS2_I(iter)->ip_blkno);
 	/* No locking is required for the next_orphan queue as there
 	 * is only ever a single process doing orphan recovery. */
 	OCFS2_I(iter)->ip_next_orphan = p->head;
@@ -2119,7 +2057,7 @@ static int ocfs2_recover_orphans(struct ocfs2_super *osb,
 	struct inode *iter;
 	struct ocfs2_inode_info *oi;
 
-	mlog(0, "Recover inodes from orphan dir in slot %d\n", slot);
+	trace_ocfs2_recover_orphans(slot);
 
 	ocfs2_mark_recovering_orphan_dir(osb, slot);
 	ret = ocfs2_queue_orphans(osb, slot, &inode);
@@ -2132,7 +2070,8 @@ static int ocfs2_recover_orphans(struct ocfs2_super *osb,
 
 	while (inode) {
 		oi = OCFS2_I(inode);
-		mlog(0, "iput orphan %llu\n", (unsigned long long)oi->ip_blkno);
+		trace_ocfs2_recover_orphans_iput(
+					(unsigned long long)oi->ip_blkno);
 
 		iter = oi->ip_next_orphan;
 
@@ -2170,6 +2109,7 @@ static int __ocfs2_wait_on_mount(struct ocfs2_super *osb, int quota)
 	 * MOUNTED flag, but this is set right before
 	 * dismount_volume() so we can trust it. */
 	if (atomic_read(&osb->vol_state) == VOLUME_DISABLED) {
+		trace_ocfs2_wait_on_mount(VOLUME_DISABLED);
 		mlog(0, "mount error, exiting!\n");
 		return -EBUSY;
 	}
diff --git a/fs/ocfs2/journal.h b/fs/ocfs2/journal.h
index 6180da1e37e6..68cf2f6d3c6a 100644
--- a/fs/ocfs2/journal.h
+++ b/fs/ocfs2/journal.h
@@ -215,7 +215,7 @@ static inline void ocfs2_checkpoint_inode(struct inode *inode)
 		/* WARNING: This only kicks off a single
 		 * checkpoint. If someone races you and adds more
 		 * metadata to the journal, you won't know, and will
-		 * wind up waiting *alot* longer than necessary. Right
+		 * wind up waiting *a lot* longer than necessary. Right
 		 * now we only use this in clear_inode so that's
 		 * OK. */
 		ocfs2_start_checkpoint(osb);
diff --git a/fs/ocfs2/localalloc.c b/fs/ocfs2/localalloc.c
index ec6adbf8f551..210c35237548 100644
--- a/fs/ocfs2/localalloc.c
+++ b/fs/ocfs2/localalloc.c
@@ -29,7 +29,6 @@
 #include <linux/highmem.h>
 #include <linux/bitops.h>
 
-#define MLOG_MASK_PREFIX ML_DISK_ALLOC
 #include <cluster/masklog.h>
 
 #include "ocfs2.h"
@@ -43,6 +42,7 @@
 #include "suballoc.h"
 #include "super.h"
 #include "sysfile.h"
+#include "ocfs2_trace.h"
 
 #include "buffer_head_io.h"
 
@@ -201,8 +201,7 @@ void ocfs2_la_set_sizes(struct ocfs2_super *osb, int requested_mb)
 	la_max_mb = ocfs2_clusters_to_megabytes(sb,
 						ocfs2_local_alloc_size(sb) * 8);
 
-	mlog(0, "requested: %dM, max: %uM, default: %uM\n",
-	     requested_mb, la_max_mb, la_default_mb);
+	trace_ocfs2_la_set_sizes(requested_mb, la_max_mb, la_default_mb);
 
 	if (requested_mb == -1) {
 		/* No user request - use defaults */
@@ -276,8 +275,8 @@ int ocfs2_alloc_should_use_local(struct ocfs2_super *osb, u64 bits)
 
 	ret = 1;
 bail:
-	mlog(0, "state=%d, bits=%llu, la_bits=%d, ret=%d\n",
-	     osb->local_alloc_state, (unsigned long long)bits, la_bits, ret);
+	trace_ocfs2_alloc_should_use_local(
+	     (unsigned long long)bits, osb->local_alloc_state, la_bits, ret);
 	spin_unlock(&osb->osb_lock);
 	return ret;
 }
@@ -291,8 +290,6 @@ int ocfs2_load_local_alloc(struct ocfs2_super *osb)
 	struct inode *inode = NULL;
 	struct ocfs2_local_alloc *la;
 
-	mlog_entry_void();
-
 	if (osb->local_alloc_bits == 0)
 		goto bail;
 
@@ -364,9 +361,10 @@ bail:
 	if (inode)
 		iput(inode);
 
-	mlog(0, "Local alloc window bits = %d\n", osb->local_alloc_bits);
+	trace_ocfs2_load_local_alloc(osb->local_alloc_bits);
 
-	mlog_exit(status);
+	if (status)
+		mlog_errno(status);
 	return status;
 }
 
@@ -388,8 +386,6 @@ void ocfs2_shutdown_local_alloc(struct ocfs2_super *osb)
 	struct ocfs2_dinode *alloc_copy = NULL;
 	struct ocfs2_dinode *alloc = NULL;
 
-	mlog_entry_void();
-
 	cancel_delayed_work(&osb->la_enable_wq);
 	flush_workqueue(ocfs2_wq);
 
@@ -482,8 +478,6 @@ out:
 
 	if (alloc_copy)
 		kfree(alloc_copy);
-
-	mlog_exit_void();
 }
 
 /*
@@ -502,7 +496,7 @@ int ocfs2_begin_local_alloc_recovery(struct ocfs2_super *osb,
 	struct inode *inode = NULL;
 	struct ocfs2_dinode *alloc;
 
-	mlog_entry("(slot_num = %d)\n", slot_num);
+	trace_ocfs2_begin_local_alloc_recovery(slot_num);
 
 	*alloc_copy = NULL;
 
@@ -552,7 +546,8 @@ bail:
 		iput(inode);
 	}
 
-	mlog_exit(status);
+	if (status)
+		mlog_errno(status);
 	return status;
 }
 
@@ -570,8 +565,6 @@ int ocfs2_complete_local_alloc_recovery(struct ocfs2_super *osb,
 	struct buffer_head *main_bm_bh = NULL;
 	struct inode *main_bm_inode;
 
-	mlog_entry_void();
-
 	main_bm_inode = ocfs2_get_system_file_inode(osb,
 						    GLOBAL_BITMAP_SYSTEM_INODE,
 						    OCFS2_INVALID_SLOT);
@@ -620,7 +613,8 @@ out_mutex:
 out:
 	if (!status)
 		ocfs2_init_steal_slots(osb);
-	mlog_exit(status);
+	if (status)
+		mlog_errno(status);
 	return status;
 }
 
@@ -640,8 +634,6 @@ int ocfs2_reserve_local_alloc_bits(struct ocfs2_super *osb,
 	struct inode *local_alloc_inode;
 	unsigned int free_bits;
 
-	mlog_entry_void();
-
 	BUG_ON(!ac);
 
 	local_alloc_inode =
@@ -712,10 +704,6 @@ int ocfs2_reserve_local_alloc_bits(struct ocfs2_super *osb,
 			goto bail;
 	}
 
-	if (ac->ac_max_block)
-		mlog(0, "Calling in_range for max block %llu\n",
-		     (unsigned long long)ac->ac_max_block);
-
 	ac->ac_inode = local_alloc_inode;
 	/* We should never use localalloc from another slot */
 	ac->ac_alloc_slot = osb->slot_num;
@@ -729,10 +717,12 @@ bail:
 		iput(local_alloc_inode);
 	}
 
-	mlog(0, "bits=%d, slot=%d, ret=%d\n", bits_wanted, osb->slot_num,
-	     status);
+	trace_ocfs2_reserve_local_alloc_bits(
+		(unsigned long long)ac->ac_max_block,
+		bits_wanted, osb->slot_num, status);
 
-	mlog_exit(status);
+	if (status)
+		mlog_errno(status);
 	return status;
 }
 
@@ -749,7 +739,6 @@ int ocfs2_claim_local_alloc_bits(struct ocfs2_super *osb,
 	struct ocfs2_dinode *alloc;
 	struct ocfs2_local_alloc *la;
 
-	mlog_entry_void();
 	BUG_ON(ac->ac_which != OCFS2_AC_USE_LOCAL);
 
 	local_alloc_inode = ac->ac_inode;
@@ -788,7 +777,8 @@ int ocfs2_claim_local_alloc_bits(struct ocfs2_super *osb,
 	ocfs2_journal_dirty(handle, osb->local_alloc_bh);
 
 bail:
-	mlog_exit(status);
+	if (status)
+		mlog_errno(status);
 	return status;
 }
 
@@ -799,13 +789,11 @@ static u32 ocfs2_local_alloc_count_bits(struct ocfs2_dinode *alloc)
 	u32 count = 0;
 	struct ocfs2_local_alloc *la = OCFS2_LOCAL_ALLOC(alloc);
 
-	mlog_entry_void();
-
 	buffer = la->la_bitmap;
 	for (i = 0; i < le16_to_cpu(la->la_size); i++)
 		count += hweight8(buffer[i]);
 
-	mlog_exit(count);
+	trace_ocfs2_local_alloc_count_bits(count);
 	return count;
 }
 
@@ -820,10 +808,7 @@ static int ocfs2_local_alloc_find_clear_bits(struct ocfs2_super *osb,
 	void *bitmap = NULL;
 	struct ocfs2_reservation_map *resmap = &osb->osb_la_resmap;
 
-	mlog_entry("(numbits wanted = %u)\n", *numbits);
-
 	if (!alloc->id1.bitmap1.i_total) {
-		mlog(0, "No bits in my window!\n");
 		bitoff = -1;
 		goto bail;
 	}
@@ -883,8 +868,7 @@ static int ocfs2_local_alloc_find_clear_bits(struct ocfs2_super *osb,
 		}
 	}
 
-	mlog(0, "Exiting loop, bitoff = %d, numfound = %d\n", bitoff,
-	     numfound);
+	trace_ocfs2_local_alloc_find_clear_bits_search_bitmap(bitoff, numfound);
 
 	if (numfound == *numbits)
 		bitoff = startoff - numfound;
@@ -895,7 +879,10 @@ bail:
 	if (local_resv)
 		ocfs2_resv_discard(resmap, resv);
 
-	mlog_exit(bitoff);
+	trace_ocfs2_local_alloc_find_clear_bits(*numbits,
+		le32_to_cpu(alloc->id1.bitmap1.i_total),
+		bitoff, numfound);
+
 	return bitoff;
 }
 
@@ -903,15 +890,12 @@ static void ocfs2_clear_local_alloc(struct ocfs2_dinode *alloc)
 {
 	struct ocfs2_local_alloc *la = OCFS2_LOCAL_ALLOC(alloc);
 	int i;
-	mlog_entry_void();
 
 	alloc->id1.bitmap1.i_total = 0;
 	alloc->id1.bitmap1.i_used = 0;
 	la->la_bm_off = 0;
 	for(i = 0; i < le16_to_cpu(la->la_size); i++)
 		la->la_bitmap[i] = 0;
-
-	mlog_exit_void();
 }
 
 #if 0
@@ -952,18 +936,16 @@ static int ocfs2_sync_local_to_main(struct ocfs2_super *osb,
 	void *bitmap;
 	struct ocfs2_local_alloc *la = OCFS2_LOCAL_ALLOC(alloc);
 
-	mlog_entry("total = %u, used = %u\n",
-		   le32_to_cpu(alloc->id1.bitmap1.i_total),
-		   le32_to_cpu(alloc->id1.bitmap1.i_used));
+	trace_ocfs2_sync_local_to_main(
+	     le32_to_cpu(alloc->id1.bitmap1.i_total),
+	     le32_to_cpu(alloc->id1.bitmap1.i_used));
 
 	if (!alloc->id1.bitmap1.i_total) {
-		mlog(0, "nothing to sync!\n");
 		goto bail;
 	}
 
 	if (le32_to_cpu(alloc->id1.bitmap1.i_used) ==
 	    le32_to_cpu(alloc->id1.bitmap1.i_total)) {
-		mlog(0, "all bits were taken!\n");
 		goto bail;
 	}
 
@@ -985,8 +967,7 @@ static int ocfs2_sync_local_to_main(struct ocfs2_super *osb,
 				ocfs2_clusters_to_blocks(osb->sb,
 							 start - count);
 
-			mlog(0, "freeing %u bits starting at local alloc bit "
-			     "%u (la_start_blk = %llu, blkno = %llu)\n",
+			trace_ocfs2_sync_local_to_main_free(
 			     count, start - count,
 			     (unsigned long long)la_start_blk,
 			     (unsigned long long)blkno);
@@ -1007,7 +988,8 @@ static int ocfs2_sync_local_to_main(struct ocfs2_super *osb,
 	}
 
 bail:
-	mlog_exit(status);
+	if (status)
+		mlog_errno(status);
 	return status;
 }
 
@@ -1132,7 +1114,8 @@ bail:
 		*ac = NULL;
 	}
 
-	mlog_exit(status);
+	if (status)
+		mlog_errno(status);
 	return status;
 }
 
@@ -1148,17 +1131,12 @@ static int ocfs2_local_alloc_new_window(struct ocfs2_super *osb,
 	struct ocfs2_dinode *alloc = NULL;
 	struct ocfs2_local_alloc *la;
 
-	mlog_entry_void();
-
 	alloc = (struct ocfs2_dinode *) osb->local_alloc_bh->b_data;
 	la = OCFS2_LOCAL_ALLOC(alloc);
 
-	if (alloc->id1.bitmap1.i_total)
-		mlog(0, "asking me to alloc a new window over a non-empty "
-		     "one\n");
-
-	mlog(0, "Allocating %u clusters for a new window.\n",
-	     osb->local_alloc_bits);
+	trace_ocfs2_local_alloc_new_window(
+		le32_to_cpu(alloc->id1.bitmap1.i_total),
+		osb->local_alloc_bits);
 
 	/* Instruct the allocation code to try the most recently used
 	 * cluster group. We'll re-record the group used this pass
@@ -1220,13 +1198,13 @@ retry_enospc:
 	ocfs2_resmap_restart(&osb->osb_la_resmap, cluster_count,
 			     OCFS2_LOCAL_ALLOC(alloc)->la_bitmap);
 
-	mlog(0, "New window allocated:\n");
-	mlog(0, "window la_bm_off = %u\n",
-	     OCFS2_LOCAL_ALLOC(alloc)->la_bm_off);
-	mlog(0, "window bits = %u\n", le32_to_cpu(alloc->id1.bitmap1.i_total));
+	trace_ocfs2_local_alloc_new_window_result(
+		OCFS2_LOCAL_ALLOC(alloc)->la_bm_off,
+		le32_to_cpu(alloc->id1.bitmap1.i_total));
 
 bail:
-	mlog_exit(status);
+	if (status)
+		mlog_errno(status);
 	return status;
 }
 
@@ -1243,8 +1221,6 @@ static int ocfs2_local_alloc_slide_window(struct ocfs2_super *osb,
 	struct ocfs2_dinode *alloc_copy = NULL;
 	struct ocfs2_alloc_context *ac = NULL;
 
-	mlog_entry_void();
-
 	ocfs2_recalc_la_window(osb, OCFS2_LA_EVENT_SLIDE);
 
 	/* This will lock the main bitmap for us. */
@@ -1324,7 +1300,8 @@ bail:
 	if (ac)
 		ocfs2_free_alloc_context(ac);
 
-	mlog_exit(status);
+	if (status)
+		mlog_errno(status);
 	return status;
 }
 
diff --git a/fs/ocfs2/locks.c b/fs/ocfs2/locks.c
index b5cb3ede9408..e57c804069ea 100644
--- a/fs/ocfs2/locks.c
+++ b/fs/ocfs2/locks.c
@@ -26,7 +26,6 @@
 #include <linux/fs.h>
 #include <linux/fcntl.h>
 
-#define MLOG_MASK_PREFIX ML_INODE
 #include <cluster/masklog.h>
 
 #include "ocfs2.h"
diff --git a/fs/ocfs2/mmap.c b/fs/ocfs2/mmap.c
index 7e32db9c2c99..3e9393ca39eb 100644
--- a/fs/ocfs2/mmap.c
+++ b/fs/ocfs2/mmap.c
@@ -31,7 +31,6 @@
 #include <linux/signal.h>
 #include <linux/rbtree.h>
 
-#define MLOG_MASK_PREFIX ML_FILE_IO
 #include <cluster/masklog.h>
 
 #include "ocfs2.h"
@@ -42,6 +41,7 @@
 #include "inode.h"
 #include "mmap.h"
 #include "super.h"
+#include "ocfs2_trace.h"
 
 
 static int ocfs2_fault(struct vm_area_struct *area, struct vm_fault *vmf)
@@ -49,13 +49,12 @@ static int ocfs2_fault(struct vm_area_struct *area, struct vm_fault *vmf)
 	sigset_t oldset;
 	int ret;
 
-	mlog_entry("(area=%p, page offset=%lu)\n", area, vmf->pgoff);
-
 	ocfs2_block_signals(&oldset);
 	ret = filemap_fault(area, vmf);
 	ocfs2_unblock_signals(&oldset);
 
-	mlog_exit_ptr(vmf->page);
+	trace_ocfs2_fault(OCFS2_I(area->vm_file->f_mapping->host)->ip_blkno,
+			  area, vmf->page, vmf->pgoff);
 	return ret;
 }
 
diff --git a/fs/ocfs2/namei.c b/fs/ocfs2/namei.c
index d6c25d76b537..e5d738cd9cc0 100644
--- a/fs/ocfs2/namei.c
+++ b/fs/ocfs2/namei.c
@@ -42,7 +42,6 @@
 #include <linux/highmem.h>
 #include <linux/quotaops.h>
 
-#define MLOG_MASK_PREFIX ML_NAMEI
 #include <cluster/masklog.h>
 
 #include "ocfs2.h"
@@ -63,6 +62,7 @@
 #include "uptodate.h"
 #include "xattr.h"
 #include "acl.h"
+#include "ocfs2_trace.h"
 
 #include "buffer_head_io.h"
 
@@ -106,17 +106,15 @@ static struct dentry *ocfs2_lookup(struct inode *dir, struct dentry *dentry,
 	struct dentry *ret;
 	struct ocfs2_inode_info *oi;
 
-	mlog_entry("(0x%p, 0x%p, '%.*s')\n", dir, dentry,
-		   dentry->d_name.len, dentry->d_name.name);
+	trace_ocfs2_lookup(dir, dentry, dentry->d_name.len,
+			   dentry->d_name.name,
+			   (unsigned long long)OCFS2_I(dir)->ip_blkno, 0);
 
 	if (dentry->d_name.len > OCFS2_MAX_FILENAME_LEN) {
 		ret = ERR_PTR(-ENAMETOOLONG);
 		goto bail;
 	}
 
-	mlog(0, "find name %.*s in directory %llu\n", dentry->d_name.len,
-	     dentry->d_name.name, (unsigned long long)OCFS2_I(dir)->ip_blkno);
-
 	status = ocfs2_inode_lock_nested(dir, NULL, 0, OI_LS_PARENT);
 	if (status < 0) {
 		if (status != -ENOENT)
@@ -182,7 +180,7 @@ bail_unlock:
 
 bail:
 
-	mlog_exit_ptr(ret);
+	trace_ocfs2_lookup_ret(ret);
 
 	return ret;
 }
@@ -235,9 +233,9 @@ static int ocfs2_mknod(struct inode *dir,
 	sigset_t oldset;
 	int did_block_signals = 0;
 
-	mlog_entry("(0x%p, 0x%p, %d, %lu, '%.*s')\n", dir, dentry, mode,
-		   (unsigned long)dev, dentry->d_name.len,
-		   dentry->d_name.name);
+	trace_ocfs2_mknod(dir, dentry, dentry->d_name.len, dentry->d_name.name,
+			  (unsigned long long)OCFS2_I(dir)->ip_blkno,
+			  (unsigned long)dev, mode);
 
 	dquot_initialize(dir);
 
@@ -354,10 +352,6 @@ static int ocfs2_mknod(struct inode *dir,
 		goto leave;
 	did_quota_inode = 1;
 
-	mlog_entry("(0x%p, 0x%p, %d, %lu, '%.*s')\n", dir, dentry,
-		   inode->i_mode, (unsigned long)dev, dentry->d_name.len,
-		   dentry->d_name.name);
-
 	/* do the real work now. */
 	status = ocfs2_mknod_locked(osb, dir, inode, dev,
 				    &new_fe_bh, parent_fe_bh, handle,
@@ -436,9 +430,6 @@ leave:
 	if (did_block_signals)
 		ocfs2_unblock_signals(&oldset);
 
-	if (status == -ENOSPC)
-		mlog(0, "Disk is full\n");
-
 	brelse(new_fe_bh);
 	brelse(parent_fe_bh);
 	kfree(si.name);
@@ -466,7 +457,8 @@ leave:
 		iput(inode);
 	}
 
-	mlog_exit(status);
+	if (status)
+		mlog_errno(status);
 
 	return status;
 }
@@ -577,7 +569,8 @@ leave:
 		}
 	}
 
-	mlog_exit(status);
+	if (status)
+		mlog_errno(status);
 	return status;
 }
 
@@ -615,10 +608,11 @@ static int ocfs2_mkdir(struct inode *dir,
 {
 	int ret;
 
-	mlog_entry("(0x%p, 0x%p, %d, '%.*s')\n", dir, dentry, mode,
-		   dentry->d_name.len, dentry->d_name.name);
+	trace_ocfs2_mkdir(dir, dentry, dentry->d_name.len, dentry->d_name.name,
+			  OCFS2_I(dir)->ip_blkno, mode);
 	ret = ocfs2_mknod(dir, dentry, mode | S_IFDIR, 0);
-	mlog_exit(ret);
+	if (ret)
+		mlog_errno(ret);
 
 	return ret;
 }
@@ -630,10 +624,11 @@ static int ocfs2_create(struct inode *dir,
 {
 	int ret;
 
-	mlog_entry("(0x%p, 0x%p, %d, '%.*s')\n", dir, dentry, mode,
-		   dentry->d_name.len, dentry->d_name.name);
+	trace_ocfs2_create(dir, dentry, dentry->d_name.len, dentry->d_name.name,
+			   (unsigned long long)OCFS2_I(dir)->ip_blkno, mode);
 	ret = ocfs2_mknod(dir, dentry, mode | S_IFREG, 0);
-	mlog_exit(ret);
+	if (ret)
+		mlog_errno(ret);
 
 	return ret;
 }
@@ -652,9 +647,9 @@ static int ocfs2_link(struct dentry *old_dentry,
 	struct ocfs2_dir_lookup_result lookup = { NULL, };
 	sigset_t oldset;
 
-	mlog_entry("(inode=%lu, old='%.*s' new='%.*s')\n", inode->i_ino,
-		   old_dentry->d_name.len, old_dentry->d_name.name,
-		   dentry->d_name.len, dentry->d_name.name);
+	trace_ocfs2_link((unsigned long long)OCFS2_I(inode)->ip_blkno,
+			 old_dentry->d_name.len, old_dentry->d_name.name,
+			 dentry->d_name.len, dentry->d_name.name);
 
 	if (S_ISDIR(inode->i_mode))
 		return -EPERM;
@@ -757,7 +752,8 @@ out:
 
 	ocfs2_free_dir_lookup_result(&lookup);
 
-	mlog_exit(err);
+	if (err)
+		mlog_errno(err);
 
 	return err;
 }
@@ -809,19 +805,17 @@ static int ocfs2_unlink(struct inode *dir,
 	struct ocfs2_dir_lookup_result lookup = { NULL, };
 	struct ocfs2_dir_lookup_result orphan_insert = { NULL, };
 
-	mlog_entry("(0x%p, 0x%p, '%.*s')\n", dir, dentry,
-		   dentry->d_name.len, dentry->d_name.name);
+	trace_ocfs2_unlink(dir, dentry, dentry->d_name.len,
+			   dentry->d_name.name,
+			   (unsigned long long)OCFS2_I(dir)->ip_blkno,
+			   (unsigned long long)OCFS2_I(inode)->ip_blkno);
 
 	dquot_initialize(dir);
 
 	BUG_ON(dentry->d_parent->d_inode != dir);
 
-	mlog(0, "ino = %llu\n", (unsigned long long)OCFS2_I(inode)->ip_blkno);
-
-	if (inode == osb->root_inode) {
-		mlog(0, "Cannot delete the root directory\n");
+	if (inode == osb->root_inode)
 		return -EPERM;
-	}
 
 	status = ocfs2_inode_lock_nested(dir, &parent_node_bh, 1,
 					 OI_LS_PARENT);
@@ -843,9 +837,10 @@ static int ocfs2_unlink(struct inode *dir,
 	if (OCFS2_I(inode)->ip_blkno != blkno) {
 		status = -ENOENT;
 
-		mlog(0, "ip_blkno %llu != dirent blkno %llu ip_flags = %x\n",
-		     (unsigned long long)OCFS2_I(inode)->ip_blkno,
-		     (unsigned long long)blkno, OCFS2_I(inode)->ip_flags);
+		trace_ocfs2_unlink_noent(
+				(unsigned long long)OCFS2_I(inode)->ip_blkno,
+				(unsigned long long)blkno,
+				OCFS2_I(inode)->ip_flags);
 		goto leave;
 	}
 
@@ -954,7 +949,8 @@ leave:
 	ocfs2_free_dir_lookup_result(&orphan_insert);
 	ocfs2_free_dir_lookup_result(&lookup);
 
-	mlog_exit(status);
+	if (status)
+		mlog_errno(status);
 
 	return status;
 }
@@ -975,9 +971,8 @@ static int ocfs2_double_lock(struct ocfs2_super *osb,
 	struct buffer_head **tmpbh;
 	struct inode *tmpinode;
 
-	mlog_entry("(inode1 = %llu, inode2 = %llu)\n",
-		   (unsigned long long)oi1->ip_blkno,
-		   (unsigned long long)oi2->ip_blkno);
+	trace_ocfs2_double_lock((unsigned long long)oi1->ip_blkno,
+				(unsigned long long)oi2->ip_blkno);
 
 	if (*bh1)
 		*bh1 = NULL;
@@ -988,7 +983,6 @@ static int ocfs2_double_lock(struct ocfs2_super *osb,
 	if (oi1->ip_blkno != oi2->ip_blkno) {
 		if (oi1->ip_blkno < oi2->ip_blkno) {
 			/* switch id1 and id2 around */
-			mlog(0, "switching them around...\n");
 			tmpbh = bh2;
 			bh2 = bh1;
 			bh1 = tmpbh;
@@ -1024,8 +1018,13 @@ static int ocfs2_double_lock(struct ocfs2_super *osb,
 			mlog_errno(status);
 	}
 
+	trace_ocfs2_double_lock_end(
+			(unsigned long long)OCFS2_I(inode1)->ip_blkno,
+			(unsigned long long)OCFS2_I(inode2)->ip_blkno);
+
 bail:
-	mlog_exit(status);
+	if (status)
+		mlog_errno(status);
 	return status;
 }
 
@@ -1067,10 +1066,9 @@ static int ocfs2_rename(struct inode *old_dir,
 	/* At some point it might be nice to break this function up a
 	 * bit. */
 
-	mlog_entry("(0x%p, 0x%p, 0x%p, 0x%p, from='%.*s' to='%.*s')\n",
-		   old_dir, old_dentry, new_dir, new_dentry,
-		   old_dentry->d_name.len, old_dentry->d_name.name,
-		   new_dentry->d_name.len, new_dentry->d_name.name);
+	trace_ocfs2_rename(old_dir, old_dentry, new_dir, new_dentry,
+			   old_dentry->d_name.len, old_dentry->d_name.name,
+			   new_dentry->d_name.len, new_dentry->d_name.name);
 
 	dquot_initialize(old_dir);
 	dquot_initialize(new_dir);
@@ -1227,16 +1225,15 @@ static int ocfs2_rename(struct inode *old_dir,
 		if (!new_inode) {
 			status = -EACCES;
 
-			mlog(0, "We found an inode for name %.*s but VFS "
-			     "didn't give us one.\n", new_dentry->d_name.len,
-			     new_dentry->d_name.name);
+			trace_ocfs2_rename_target_exists(new_dentry->d_name.len,
+						new_dentry->d_name.name);
 			goto bail;
 		}
 
 		if (OCFS2_I(new_inode)->ip_blkno != newfe_blkno) {
 			status = -EACCES;
 
-			mlog(0, "Inode %llu and dir %llu disagree. flags = %x\n",
+			trace_ocfs2_rename_disagree(
 			     (unsigned long long)OCFS2_I(new_inode)->ip_blkno,
 			     (unsigned long long)newfe_blkno,
 			     OCFS2_I(new_inode)->ip_flags);
@@ -1259,8 +1256,7 @@ static int ocfs2_rename(struct inode *old_dir,
 
 		newfe = (struct ocfs2_dinode *) newfe_bh->b_data;
 
-		mlog(0, "aha rename over existing... new_blkno=%llu "
-		     "newfebh=%p bhblocknr=%llu\n",
+		trace_ocfs2_rename_over_existing(
 		     (unsigned long long)newfe_blkno, newfe_bh, newfe_bh ?
 		     (unsigned long long)newfe_bh->b_blocknr : 0ULL);
 
@@ -1476,7 +1472,8 @@ bail:
 	brelse(old_dir_bh);
 	brelse(new_dir_bh);
 
-	mlog_exit(status);
+	if (status)
+		mlog_errno(status);
 
 	return status;
 }
@@ -1501,9 +1498,8 @@ static int ocfs2_create_symlink_data(struct ocfs2_super *osb,
 	 * write i_size + 1 bytes. */
 	blocks = (bytes_left + sb->s_blocksize - 1) >> sb->s_blocksize_bits;
 
-	mlog_entry("i_blocks = %llu, i_size = %llu, blocks = %d\n",
-			(unsigned long long)inode->i_blocks,
-			i_size_read(inode), blocks);
+	trace_ocfs2_create_symlink_data((unsigned long long)inode->i_blocks,
+					i_size_read(inode), blocks);
 
 	/* Sanity check -- make sure we're going to fit. */
 	if (bytes_left >
@@ -1579,7 +1575,8 @@ bail:
 		kfree(bhs);
 	}
 
-	mlog_exit(status);
+	if (status)
+		mlog_errno(status);
 	return status;
 }
 
@@ -1610,8 +1607,8 @@ static int ocfs2_symlink(struct inode *dir,
 	sigset_t oldset;
 	int did_block_signals = 0;
 
-	mlog_entry("(0x%p, 0x%p, symname='%s' actual='%.*s')\n", dir,
-		   dentry, symname, dentry->d_name.len, dentry->d_name.name);
+	trace_ocfs2_symlink_begin(dir, dentry, symname,
+				  dentry->d_name.len, dentry->d_name.name);
 
 	dquot_initialize(dir);
 
@@ -1713,9 +1710,10 @@ static int ocfs2_symlink(struct inode *dir,
 		goto bail;
 	did_quota_inode = 1;
 
-	mlog_entry("(0x%p, 0x%p, %d, '%.*s')\n", dir, dentry,
-		   inode->i_mode, dentry->d_name.len,
-		   dentry->d_name.name);
+	trace_ocfs2_symlink_create(dir, dentry, dentry->d_name.len,
+				   dentry->d_name.name,
+				   (unsigned long long)OCFS2_I(dir)->ip_blkno,
+				   inode->i_mode);
 
 	status = ocfs2_mknod_locked(osb, dir, inode,
 				    0, &new_fe_bh, parent_fe_bh, handle,
@@ -1835,7 +1833,8 @@ bail:
 		iput(inode);
 	}
 
-	mlog_exit(status);
+	if (status)
+		mlog_errno(status);
 
 	return status;
 }
@@ -1844,8 +1843,6 @@ static int ocfs2_blkno_stringify(u64 blkno, char *name)
 {
 	int status, namelen;
 
-	mlog_entry_void();
-
 	namelen = snprintf(name, OCFS2_ORPHAN_NAMELEN + 1, "%016llx",
 			   (long long)blkno);
 	if (namelen <= 0) {
@@ -1862,12 +1859,12 @@ static int ocfs2_blkno_stringify(u64 blkno, char *name)
 		goto bail;
 	}
 
-	mlog(0, "built filename '%s' for orphan dir (len=%d)\n", name,
-	     namelen);
+	trace_ocfs2_blkno_stringify(blkno, name, namelen);
 
 	status = 0;
 bail:
-	mlog_exit(status);
+	if (status < 0)
+		mlog_errno(status);
 	return status;
 }
 
@@ -1980,7 +1977,8 @@ out:
 		iput(orphan_dir_inode);
 	}
 
-	mlog_exit(ret);
+	if (ret)
+		mlog_errno(ret);
 	return ret;
 }
 
@@ -1997,7 +1995,8 @@ static int ocfs2_orphan_add(struct ocfs2_super *osb,
 	struct ocfs2_dinode *orphan_fe;
 	struct ocfs2_dinode *fe = (struct ocfs2_dinode *) fe_bh->b_data;
 
-	mlog_entry("(inode->i_ino = %lu)\n", inode->i_ino);
+	trace_ocfs2_orphan_add_begin(
+				(unsigned long long)OCFS2_I(inode)->ip_blkno);
 
 	status = ocfs2_read_inode_block(orphan_dir_inode, &orphan_dir_bh);
 	if (status < 0) {
@@ -2056,13 +2055,14 @@ static int ocfs2_orphan_add(struct ocfs2_super *osb,
 
 	ocfs2_journal_dirty(handle, fe_bh);
 
-	mlog(0, "Inode %llu orphaned in slot %d\n",
-	     (unsigned long long)OCFS2_I(inode)->ip_blkno, osb->slot_num);
+	trace_ocfs2_orphan_add_end((unsigned long long)OCFS2_I(inode)->ip_blkno,
+				   osb->slot_num);
 
 leave:
 	brelse(orphan_dir_bh);
 
-	mlog_exit(status);
+	if (status)
+		mlog_errno(status);
 	return status;
 }
 
@@ -2078,17 +2078,15 @@ int ocfs2_orphan_del(struct ocfs2_super *osb,
 	int status = 0;
 	struct ocfs2_dir_lookup_result lookup = { NULL, };
 
-	mlog_entry_void();
-
 	status = ocfs2_blkno_stringify(OCFS2_I(inode)->ip_blkno, name);
 	if (status < 0) {
 		mlog_errno(status);
 		goto leave;
 	}
 
-	mlog(0, "removing '%s' from orphan dir %llu (namelen=%d)\n",
-	     name, (unsigned long long)OCFS2_I(orphan_dir_inode)->ip_blkno,
-	     OCFS2_ORPHAN_NAMELEN);
+	trace_ocfs2_orphan_del(
+	     (unsigned long long)OCFS2_I(orphan_dir_inode)->ip_blkno,
+	     name, OCFS2_ORPHAN_NAMELEN);
 
 	/* find it's spot in the orphan directory */
 	status = ocfs2_find_entry(name, OCFS2_ORPHAN_NAMELEN, orphan_dir_inode,
@@ -2124,12 +2122,13 @@ int ocfs2_orphan_del(struct ocfs2_super *osb,
 leave:
 	ocfs2_free_dir_lookup_result(&lookup);
 
-	mlog_exit(status);
+	if (status)
+		mlog_errno(status);
 	return status;
 }
 
 /**
- * ocfs2_prep_new_orphaned_file() - Prepare the orphan dir to recieve a newly
+ * ocfs2_prep_new_orphaned_file() - Prepare the orphan dir to receive a newly
  * allocated file. This is different from the typical 'add to orphan dir'
  * operation in that the inode does not yet exist. This is a problem because
  * the orphan dir stringifies the inode block number to come up with it's
@@ -2321,9 +2320,6 @@ leave:
 		iput(orphan_dir);
 	}
 
-	if (status == -ENOSPC)
-		mlog(0, "Disk is full\n");
-
 	if ((status < 0) && inode) {
 		clear_nlink(inode);
 		iput(inode);
@@ -2358,8 +2354,10 @@ int ocfs2_mv_orphaned_inode_to_new(struct inode *dir,
 	struct buffer_head *di_bh = NULL;
 	struct ocfs2_dir_lookup_result lookup = { NULL, };
 
-	mlog_entry("(0x%p, 0x%p, %.*s')\n", dir, dentry,
-		   dentry->d_name.len, dentry->d_name.name);
+	trace_ocfs2_mv_orphaned_inode_to_new(dir, dentry,
+				dentry->d_name.len, dentry->d_name.name,
+				(unsigned long long)OCFS2_I(dir)->ip_blkno,
+				(unsigned long long)OCFS2_I(inode)->ip_blkno);
 
 	status = ocfs2_inode_lock(dir, &parent_di_bh, 1);
 	if (status < 0) {
@@ -2476,7 +2474,8 @@ leave:
 
 	ocfs2_free_dir_lookup_result(&lookup);
 
-	mlog_exit(status);
+	if (status)
+		mlog_errno(status);
 
 	return status;
 }
diff --git a/fs/ocfs2/ocfs2.h b/fs/ocfs2/ocfs2.h
index 1a97ba1ec3fc..409285854f64 100644
--- a/fs/ocfs2/ocfs2.h
+++ b/fs/ocfs2/ocfs2.h
@@ -147,6 +147,17 @@ struct ocfs2_lock_res_ops;
 
 typedef void (*ocfs2_lock_callback)(int status, unsigned long data);
 
+#ifdef CONFIG_OCFS2_FS_STATS
+struct ocfs2_lock_stats {
+	u64		ls_total;	/* Total wait in NSEC */
+	u32		ls_gets;	/* Num acquires */
+	u32		ls_fail;	/* Num failed acquires */
+
+	/* Storing max wait in usecs saves 24 bytes per inode */
+	u32		ls_max;		/* Max wait in USEC */
+};
+#endif
+
 struct ocfs2_lock_res {
 	void                    *l_priv;
 	struct ocfs2_lock_res_ops *l_ops;
@@ -182,15 +193,9 @@ struct ocfs2_lock_res {
 	struct list_head         l_debug_list;
 
 #ifdef CONFIG_OCFS2_FS_STATS
-	unsigned long long	 l_lock_num_prmode; 	   /* PR acquires */
-	unsigned long long 	 l_lock_num_exmode; 	   /* EX acquires */
-	unsigned int		 l_lock_num_prmode_failed; /* Failed PR gets */
-	unsigned int		 l_lock_num_exmode_failed; /* Failed EX gets */
-	unsigned long long	 l_lock_total_prmode; 	   /* Tot wait for PR */
-	unsigned long long	 l_lock_total_exmode; 	   /* Tot wait for EX */
-	unsigned int		 l_lock_max_prmode; 	   /* Max wait for PR */
-	unsigned int		 l_lock_max_exmode; 	   /* Max wait for EX */
-	unsigned int		 l_lock_refresh;	   /* Disk refreshes */
+	struct ocfs2_lock_stats  l_lock_prmode;		/* PR mode stats */
+	u32                      l_lock_refresh;	/* Disk refreshes */
+	struct ocfs2_lock_stats  l_lock_exmode;		/* EX mode stats */
 #endif
 #ifdef CONFIG_DEBUG_LOCK_ALLOC
 	struct lockdep_map	 l_lockdep_map;
diff --git a/fs/ocfs2/ocfs2_fs.h b/fs/ocfs2/ocfs2_fs.h
index bf2e7764920e..b68f87a83924 100644
--- a/fs/ocfs2/ocfs2_fs.h
+++ b/fs/ocfs2/ocfs2_fs.h
@@ -441,7 +441,7 @@ static unsigned char ocfs2_type_by_mode[S_IFMT >> S_SHIFT] = {
 struct ocfs2_block_check {
 /*00*/	__le32 bc_crc32e;	/* 802.3 Ethernet II CRC32 */
 	__le16 bc_ecc;		/* Single-error-correction parity vector.
-				   This is a simple Hamming code dependant
+				   This is a simple Hamming code dependent
 				   on the blocksize.  OCFS2's maximum
 				   blocksize, 4K, requires 16 parity bits,
 				   so we fit in __le16. */
@@ -750,7 +750,7 @@ struct ocfs2_dinode {
 							  after an unclean
 							  shutdown */
 		} journal1;
-	} id1;				/* Inode type dependant 1 */
+	} id1;				/* Inode type dependent 1 */
 /*C0*/	union {
 		struct ocfs2_super_block	i_super;
 		struct ocfs2_local_alloc	i_lab;
diff --git a/fs/ocfs2/ocfs2_trace.h b/fs/ocfs2/ocfs2_trace.h
new file mode 100644
index 000000000000..a1dae5bb54ac
--- /dev/null
+++ b/fs/ocfs2/ocfs2_trace.h
@@ -0,0 +1,2739 @@
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM ocfs2
+
+#if !defined(_TRACE_OCFS2_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_OCFS2_H
+
+#include <linux/tracepoint.h>
+
+DECLARE_EVENT_CLASS(ocfs2__int,
+	TP_PROTO(int num),
+	TP_ARGS(num),
+	TP_STRUCT__entry(
+		__field(int, num)
+	),
+	TP_fast_assign(
+		__entry->num = num;
+	),
+	TP_printk("%d", __entry->num)
+);
+
+#define DEFINE_OCFS2_INT_EVENT(name)	\
+DEFINE_EVENT(ocfs2__int, name,	\
+	TP_PROTO(int num),	\
+	TP_ARGS(num))
+
+DECLARE_EVENT_CLASS(ocfs2__uint,
+	TP_PROTO(unsigned int num),
+	TP_ARGS(num),
+	TP_STRUCT__entry(
+		__field(	unsigned int,	num		)
+	),
+	TP_fast_assign(
+		__entry->num	= 	num;
+	),
+	TP_printk("%u", __entry->num)
+);
+
+#define DEFINE_OCFS2_UINT_EVENT(name)	\
+DEFINE_EVENT(ocfs2__uint, name,	\
+	TP_PROTO(unsigned int num),	\
+	TP_ARGS(num))
+
+DECLARE_EVENT_CLASS(ocfs2__ull,
+	TP_PROTO(unsigned long long blkno),
+	TP_ARGS(blkno),
+	TP_STRUCT__entry(
+		__field(unsigned long long, blkno)
+	),
+	TP_fast_assign(
+		__entry->blkno = blkno;
+	),
+	TP_printk("%llu", __entry->blkno)
+);
+
+#define DEFINE_OCFS2_ULL_EVENT(name)	\
+DEFINE_EVENT(ocfs2__ull, name,	\
+	TP_PROTO(unsigned long long num),	\
+	TP_ARGS(num))
+
+DECLARE_EVENT_CLASS(ocfs2__pointer,
+	TP_PROTO(void *pointer),
+	TP_ARGS(pointer),
+	TP_STRUCT__entry(
+		__field(void *, pointer)
+	),
+	TP_fast_assign(
+		__entry->pointer = pointer;
+	),
+	TP_printk("%p", __entry->pointer)
+);
+
+#define DEFINE_OCFS2_POINTER_EVENT(name)	\
+DEFINE_EVENT(ocfs2__pointer, name,	\
+	TP_PROTO(void *pointer),	\
+	TP_ARGS(pointer))
+
+DECLARE_EVENT_CLASS(ocfs2__string,
+	TP_PROTO(const char *name),
+	TP_ARGS(name),
+	TP_STRUCT__entry(
+		__string(name,name)
+	),
+	TP_fast_assign(
+		__assign_str(name, name);
+	),
+	TP_printk("%s", __get_str(name))
+);
+
+#define DEFINE_OCFS2_STRING_EVENT(name)	\
+DEFINE_EVENT(ocfs2__string, name,	\
+	TP_PROTO(const char *name),	\
+	TP_ARGS(name))
+
+DECLARE_EVENT_CLASS(ocfs2__int_int,
+	TP_PROTO(int value1, int value2),
+	TP_ARGS(value1, value2),
+	TP_STRUCT__entry(
+		__field(int, value1)
+		__field(int, value2)
+	),
+	TP_fast_assign(
+		__entry->value1	= value1;
+		__entry->value2	= value2;
+	),
+	TP_printk("%d %d", __entry->value1, __entry->value2)
+);
+
+#define DEFINE_OCFS2_INT_INT_EVENT(name)	\
+DEFINE_EVENT(ocfs2__int_int, name,	\
+	TP_PROTO(int val1, int val2),	\
+	TP_ARGS(val1, val2))
+
+DECLARE_EVENT_CLASS(ocfs2__uint_int,
+	TP_PROTO(unsigned int value1, int value2),
+	TP_ARGS(value1, value2),
+	TP_STRUCT__entry(
+		__field(unsigned int, value1)
+		__field(int, value2)
+	),
+	TP_fast_assign(
+		__entry->value1	= value1;
+		__entry->value2	= value2;
+	),
+	TP_printk("%u %d", __entry->value1, __entry->value2)
+);
+
+#define DEFINE_OCFS2_UINT_INT_EVENT(name)	\
+DEFINE_EVENT(ocfs2__uint_int, name,	\
+	TP_PROTO(unsigned int val1, int val2),	\
+	TP_ARGS(val1, val2))
+
+DECLARE_EVENT_CLASS(ocfs2__uint_uint,
+	TP_PROTO(unsigned int value1, unsigned int value2),
+	TP_ARGS(value1, value2),
+	TP_STRUCT__entry(
+		__field(unsigned int, value1)
+		__field(unsigned int, value2)
+	),
+	TP_fast_assign(
+		__entry->value1 = value1;
+		__entry->value2 = value2;
+	),
+	TP_printk("%u %u", __entry->value1, __entry->value2)
+);
+
+#define DEFINE_OCFS2_UINT_UINT_EVENT(name)	\
+DEFINE_EVENT(ocfs2__uint_uint, name,	\
+	TP_PROTO(unsigned int val1, unsigned int val2),	\
+	TP_ARGS(val1, val2))
+
+DECLARE_EVENT_CLASS(ocfs2__ull_uint,
+	TP_PROTO(unsigned long long value1, unsigned int value2),
+	TP_ARGS(value1, value2),
+	TP_STRUCT__entry(
+		__field(unsigned long long, value1)
+		__field(unsigned int, value2)
+	),
+	TP_fast_assign(
+		__entry->value1 = value1;
+		__entry->value2 = value2;
+	),
+	TP_printk("%llu %u", __entry->value1, __entry->value2)
+);
+
+#define DEFINE_OCFS2_ULL_UINT_EVENT(name)	\
+DEFINE_EVENT(ocfs2__ull_uint, name,	\
+	TP_PROTO(unsigned long long val1, unsigned int val2),	\
+	TP_ARGS(val1, val2))
+
+DECLARE_EVENT_CLASS(ocfs2__ull_int,
+	TP_PROTO(unsigned long long value1, int value2),
+	TP_ARGS(value1, value2),
+	TP_STRUCT__entry(
+		__field(unsigned long long, value1)
+		__field(int, value2)
+	),
+	TP_fast_assign(
+		__entry->value1	= value1;
+		__entry->value2	= value2;
+	),
+	TP_printk("%llu %d", __entry->value1, __entry->value2)
+);
+
+#define DEFINE_OCFS2_ULL_INT_EVENT(name)	\
+DEFINE_EVENT(ocfs2__ull_int, name,	\
+	TP_PROTO(unsigned long long val1, int val2),	\
+	TP_ARGS(val1, val2))
+
+DECLARE_EVENT_CLASS(ocfs2__ull_ull,
+	TP_PROTO(unsigned long long value1, unsigned long long value2),
+	TP_ARGS(value1, value2),
+	TP_STRUCT__entry(
+		__field(unsigned long long, value1)
+		__field(unsigned long long, value2)
+	),
+	TP_fast_assign(
+		__entry->value1 = value1;
+		__entry->value2 = value2;
+	),
+	TP_printk("%llu %llu", __entry->value1, __entry->value2)
+);
+
+#define DEFINE_OCFS2_ULL_ULL_EVENT(name)	\
+DEFINE_EVENT(ocfs2__ull_ull, name,	\
+	TP_PROTO(unsigned long long val1, unsigned long long val2),	\
+	TP_ARGS(val1, val2))
+
+DECLARE_EVENT_CLASS(ocfs2__ull_ull_uint,
+	TP_PROTO(unsigned long long value1,
+		 unsigned long long value2, unsigned int value3),
+	TP_ARGS(value1, value2, value3),
+	TP_STRUCT__entry(
+		__field(unsigned long long, value1)
+		__field(unsigned long long, value2)
+		__field(unsigned int, value3)
+	),
+	TP_fast_assign(
+		__entry->value1 = value1;
+		__entry->value2 = value2;
+		__entry->value3 = value3;
+	),
+	TP_printk("%llu %llu %u",
+		  __entry->value1, __entry->value2, __entry->value3)
+);
+
+#define DEFINE_OCFS2_ULL_ULL_UINT_EVENT(name)	\
+DEFINE_EVENT(ocfs2__ull_ull_uint, name,	\
+	TP_PROTO(unsigned long long val1,	\
+		 unsigned long long val2, unsigned int val3),	\
+	TP_ARGS(val1, val2, val3))
+
+DECLARE_EVENT_CLASS(ocfs2__ull_uint_uint,
+	TP_PROTO(unsigned long long value1,
+		 unsigned int value2, unsigned int value3),
+	TP_ARGS(value1, value2, value3),
+	TP_STRUCT__entry(
+		__field(unsigned long long, value1)
+		__field(unsigned int, value2)
+		__field(unsigned int, value3)
+	),
+	TP_fast_assign(
+		__entry->value1 = value1;
+		__entry->value2 = value2;
+		__entry->value3	= value3;
+	),
+	TP_printk("%llu %u %u", __entry->value1,
+		  __entry->value2, __entry->value3)
+);
+
+#define DEFINE_OCFS2_ULL_UINT_UINT_EVENT(name)	\
+DEFINE_EVENT(ocfs2__ull_uint_uint, name,	\
+	TP_PROTO(unsigned long long val1,	\
+		 unsigned int val2, unsigned int val3),	\
+	TP_ARGS(val1, val2, val3))
+
+DECLARE_EVENT_CLASS(ocfs2__uint_uint_uint,
+	TP_PROTO(unsigned int value1, unsigned int value2,
+		 unsigned int value3),
+	TP_ARGS(value1, value2, value3),
+	TP_STRUCT__entry(
+		__field(	unsigned int,	value1		)
+		__field(	unsigned int,	value2		)
+		__field(	unsigned int,	value3		)
+	),
+	TP_fast_assign(
+		__entry->value1	= 	value1;
+		__entry->value2	= 	value2;
+		__entry->value3	= 	value3;
+	),
+	TP_printk("%u %u %u", __entry->value1, __entry->value2, __entry->value3)
+);
+
+#define DEFINE_OCFS2_UINT_UINT_UINT_EVENT(name)	\
+DEFINE_EVENT(ocfs2__uint_uint_uint, name,	\
+	TP_PROTO(unsigned int value1, unsigned int value2,	\
+		 unsigned int value3),	\
+	TP_ARGS(value1, value2, value3))
+
+DECLARE_EVENT_CLASS(ocfs2__ull_ull_ull,
+	TP_PROTO(unsigned long long value1,
+		 unsigned long long value2, unsigned long long value3),
+	TP_ARGS(value1, value2, value3),
+	TP_STRUCT__entry(
+		__field(unsigned long long, value1)
+		__field(unsigned long long, value2)
+		__field(unsigned long long, value3)
+	),
+	TP_fast_assign(
+		__entry->value1 = value1;
+		__entry->value2 = value2;
+		__entry->value3 = value3;
+	),
+	TP_printk("%llu %llu %llu",
+		  __entry->value1, __entry->value2, __entry->value3)
+);
+
+#define DEFINE_OCFS2_ULL_ULL_ULL_EVENT(name)	\
+DEFINE_EVENT(ocfs2__ull_ull_ull, name,	\
+	TP_PROTO(unsigned long long value1, unsigned long long value2,	\
+		 unsigned long long value3),	\
+	TP_ARGS(value1, value2, value3))
+
+DECLARE_EVENT_CLASS(ocfs2__ull_int_int_int,
+	TP_PROTO(unsigned long long ull, int value1, int value2, int value3),
+	TP_ARGS(ull, value1, value2, value3),
+	TP_STRUCT__entry(
+		__field(	unsigned long long,	ull	)
+		__field(	int,	value1			)
+		__field(	int,	value2			)
+		__field(	int,	value3			)
+	),
+	TP_fast_assign(
+		__entry->ull		= ull;
+		__entry->value1		= value1;
+		__entry->value2		= value2;
+		__entry->value3		= value3;
+	),
+	TP_printk("%llu %d %d %d",
+		  __entry->ull, __entry->value1,
+		  __entry->value2, __entry->value3)
+);
+
+#define DEFINE_OCFS2_ULL_INT_INT_INT_EVENT(name)	\
+DEFINE_EVENT(ocfs2__ull_int_int_int, name,	\
+	TP_PROTO(unsigned long long ull, int value1,	\
+		 int value2, int value3),	\
+	TP_ARGS(ull, value1, value2, value3))
+
+DECLARE_EVENT_CLASS(ocfs2__ull_uint_uint_uint,
+	TP_PROTO(unsigned long long ull, unsigned int value1,
+		 unsigned int value2, unsigned int value3),
+	TP_ARGS(ull, value1, value2, value3),
+	TP_STRUCT__entry(
+		__field(unsigned long long, ull)
+		__field(unsigned int, value1)
+		__field(unsigned int, value2)
+		__field(unsigned int, value3)
+	),
+	TP_fast_assign(
+		__entry->ull = ull;
+		__entry->value1 = value1;
+		__entry->value2	= value2;
+		__entry->value3	= value3;
+	),
+	TP_printk("%llu %u %u %u",
+		  __entry->ull, __entry->value1,
+		  __entry->value2, __entry->value3)
+);
+
+#define DEFINE_OCFS2_ULL_UINT_UINT_UINT_EVENT(name)	\
+DEFINE_EVENT(ocfs2__ull_uint_uint_uint, name,	\
+	TP_PROTO(unsigned long long ull, unsigned int value1,	\
+		 unsigned int value2, unsigned int value3),	\
+	TP_ARGS(ull, value1, value2, value3))
+
+DECLARE_EVENT_CLASS(ocfs2__ull_ull_uint_uint,
+	TP_PROTO(unsigned long long value1, unsigned long long value2,
+		 unsigned int value3, unsigned int value4),
+	TP_ARGS(value1, value2, value3, value4),
+	TP_STRUCT__entry(
+		__field(unsigned long long, value1)
+		__field(unsigned long long, value2)
+		__field(unsigned int, value3)
+		__field(unsigned int, value4)
+	),
+	TP_fast_assign(
+		__entry->value1 = value1;
+		__entry->value2 = value2;
+		__entry->value3 = value3;
+		__entry->value4 = value4;
+	),
+	TP_printk("%llu %llu %u %u",
+		  __entry->value1, __entry->value2,
+		  __entry->value3, __entry->value4)
+);
+
+#define DEFINE_OCFS2_ULL_ULL_UINT_UINT_EVENT(name)	\
+DEFINE_EVENT(ocfs2__ull_ull_uint_uint, name,	\
+	TP_PROTO(unsigned long long ull, unsigned long long ull1,	\
+		 unsigned int value2, unsigned int value3),	\
+	TP_ARGS(ull, ull1, value2, value3))
+
+/* Trace events for fs/ocfs2/alloc.c. */
+DECLARE_EVENT_CLASS(ocfs2__btree_ops,
+	TP_PROTO(unsigned long long owner,\
+		 unsigned int value1, unsigned int value2),
+	TP_ARGS(owner, value1, value2),
+	TP_STRUCT__entry(
+		__field(unsigned long long, owner)
+		__field(unsigned int, value1)
+		__field(unsigned int, value2)
+	),
+	TP_fast_assign(
+		__entry->owner = owner;
+		__entry->value1 = value1;
+		__entry->value2	= value2;
+	),
+	TP_printk("%llu %u %u",
+		  __entry->owner, __entry->value1, __entry->value2)
+);
+
+#define DEFINE_OCFS2_BTREE_EVENT(name)	\
+DEFINE_EVENT(ocfs2__btree_ops, name,	\
+	TP_PROTO(unsigned long long owner,	\
+		 unsigned int value1, unsigned int value2),	\
+	TP_ARGS(owner, value1, value2))
+
+DEFINE_OCFS2_BTREE_EVENT(ocfs2_adjust_rightmost_branch);
+
+DEFINE_OCFS2_BTREE_EVENT(ocfs2_rotate_tree_right);
+
+DEFINE_OCFS2_BTREE_EVENT(ocfs2_append_rec_to_path);
+
+DEFINE_OCFS2_BTREE_EVENT(ocfs2_insert_extent_start);
+
+DEFINE_OCFS2_BTREE_EVENT(ocfs2_add_clusters_in_btree);
+
+DEFINE_OCFS2_INT_EVENT(ocfs2_num_free_extents);
+
+DEFINE_OCFS2_INT_EVENT(ocfs2_complete_edge_insert);
+
+TRACE_EVENT(ocfs2_grow_tree,
+	TP_PROTO(unsigned long long owner, int depth),
+	TP_ARGS(owner, depth),
+	TP_STRUCT__entry(
+		__field(unsigned long long, owner)
+		__field(int, depth)
+	),
+	TP_fast_assign(
+		__entry->owner = owner;
+		__entry->depth = depth;
+	),
+	TP_printk("%llu %d", __entry->owner, __entry->depth)
+);
+
+TRACE_EVENT(ocfs2_rotate_subtree,
+	TP_PROTO(int subtree_root, unsigned long long blkno,
+		 int depth),
+	TP_ARGS(subtree_root, blkno, depth),
+	TP_STRUCT__entry(
+		__field(int, subtree_root)
+		__field(unsigned long long, blkno)
+		__field(int, depth)
+	),
+	TP_fast_assign(
+		__entry->subtree_root = subtree_root;
+		__entry->blkno = blkno;
+		__entry->depth = depth;
+	),
+	TP_printk("%d %llu %d", __entry->subtree_root,
+		  __entry->blkno, __entry->depth)
+);
+
+TRACE_EVENT(ocfs2_insert_extent,
+	TP_PROTO(unsigned int ins_appending, unsigned int ins_contig,
+		 int ins_contig_index, int free_records, int ins_tree_depth),
+	TP_ARGS(ins_appending, ins_contig, ins_contig_index, free_records,
+		ins_tree_depth),
+	TP_STRUCT__entry(
+		__field(unsigned int, ins_appending)
+		__field(unsigned int, ins_contig)
+		__field(int, ins_contig_index)
+		__field(int, free_records)
+		__field(int, ins_tree_depth)
+	),
+	TP_fast_assign(
+		__entry->ins_appending = ins_appending;
+		__entry->ins_contig = ins_contig;
+		__entry->ins_contig_index = ins_contig_index;
+		__entry->free_records = free_records;
+		__entry->ins_tree_depth = ins_tree_depth;
+	),
+	TP_printk("%u %u %d %d %d",
+		  __entry->ins_appending, __entry->ins_contig,
+		  __entry->ins_contig_index, __entry->free_records,
+		  __entry->ins_tree_depth)
+);
+
+TRACE_EVENT(ocfs2_split_extent,
+	TP_PROTO(int split_index, unsigned int c_contig_type,
+		 unsigned int c_has_empty_extent,
+		 unsigned int c_split_covers_rec),
+	TP_ARGS(split_index, c_contig_type,
+		c_has_empty_extent, c_split_covers_rec),
+	TP_STRUCT__entry(
+		__field(int, split_index)
+		__field(unsigned int, c_contig_type)
+		__field(unsigned int, c_has_empty_extent)
+		__field(unsigned int, c_split_covers_rec)
+	),
+	TP_fast_assign(
+		__entry->split_index = split_index;
+		__entry->c_contig_type = c_contig_type;
+		__entry->c_has_empty_extent = c_has_empty_extent;
+		__entry->c_split_covers_rec = c_split_covers_rec;
+	),
+	TP_printk("%d %u %u %u", __entry->split_index, __entry->c_contig_type,
+		  __entry->c_has_empty_extent, __entry->c_split_covers_rec)
+);
+
+TRACE_EVENT(ocfs2_remove_extent,
+	TP_PROTO(unsigned long long owner, unsigned int cpos,
+		 unsigned int len, int index,
+		 unsigned int e_cpos, unsigned int clusters),
+	TP_ARGS(owner, cpos, len, index, e_cpos, clusters),
+	TP_STRUCT__entry(
+		__field(unsigned long long, owner)
+		__field(unsigned int, cpos)
+		__field(unsigned int, len)
+		__field(int, index)
+		__field(unsigned int, e_cpos)
+		__field(unsigned int, clusters)
+	),
+	TP_fast_assign(
+		__entry->owner = owner;
+		__entry->cpos = cpos;
+		__entry->len = len;
+		__entry->index = index;
+		__entry->e_cpos = e_cpos;
+		__entry->clusters = clusters;
+	),
+	TP_printk("%llu %u %u %d %u %u",
+		  __entry->owner, __entry->cpos, __entry->len, __entry->index,
+		  __entry->e_cpos, __entry->clusters)
+);
+
+TRACE_EVENT(ocfs2_commit_truncate,
+	TP_PROTO(unsigned long long ino, unsigned int new_cpos,
+		 unsigned int clusters, unsigned int depth),
+	TP_ARGS(ino, new_cpos, clusters, depth),
+	TP_STRUCT__entry(
+		__field(unsigned long long, ino)
+		__field(unsigned int, new_cpos)
+		__field(unsigned int, clusters)
+		__field(unsigned int, depth)
+	),
+	TP_fast_assign(
+		__entry->ino = ino;
+		__entry->new_cpos = new_cpos;
+		__entry->clusters = clusters;
+		__entry->depth = depth;
+	),
+	TP_printk("%llu %u %u %u",
+		  __entry->ino, __entry->new_cpos,
+		  __entry->clusters, __entry->depth)
+);
+
+TRACE_EVENT(ocfs2_validate_extent_block,
+	TP_PROTO(unsigned long long blkno),
+	TP_ARGS(blkno),
+	TP_STRUCT__entry(
+		__field(unsigned long long, blkno)
+	),
+	TP_fast_assign(
+		__entry->blkno = blkno;
+	),
+	TP_printk("%llu ", __entry->blkno)
+);
+
+TRACE_EVENT(ocfs2_rotate_leaf,
+	TP_PROTO(unsigned int insert_cpos, int insert_index,
+		 int has_empty, int next_free,
+		 unsigned int l_count),
+	TP_ARGS(insert_cpos, insert_index, has_empty,
+		next_free, l_count),
+	TP_STRUCT__entry(
+		__field(unsigned int, insert_cpos)
+		__field(int, insert_index)
+		__field(int, has_empty)
+		__field(int, next_free)
+		__field(unsigned int, l_count)
+	),
+	TP_fast_assign(
+		__entry->insert_cpos = insert_cpos;
+		__entry->insert_index = insert_index;
+		__entry->has_empty = has_empty;
+		__entry->next_free = next_free;
+		__entry->l_count = l_count;
+	),
+	TP_printk("%u %d %d %d %u", __entry->insert_cpos,
+		  __entry->insert_index, __entry->has_empty,
+		  __entry->next_free, __entry->l_count)
+);
+
+TRACE_EVENT(ocfs2_add_clusters_in_btree_ret,
+	TP_PROTO(int status, int reason, int err),
+	TP_ARGS(status, reason, err),
+	TP_STRUCT__entry(
+		__field(int, status)
+		__field(int, reason)
+		__field(int, err)
+	),
+	TP_fast_assign(
+		__entry->status = status;
+		__entry->reason = reason;
+		__entry->err = err;
+	),
+	TP_printk("%d %d %d", __entry->status,
+		  __entry->reason, __entry->err)
+);
+
+TRACE_EVENT(ocfs2_mark_extent_written,
+	TP_PROTO(unsigned long long owner, unsigned int cpos,
+		 unsigned int len, unsigned int phys),
+	TP_ARGS(owner, cpos, len, phys),
+	TP_STRUCT__entry(
+		__field(unsigned long long, owner)
+		__field(unsigned int, cpos)
+		__field(unsigned int, len)
+		__field(unsigned int, phys)
+	),
+	TP_fast_assign(
+		__entry->owner = owner;
+		__entry->cpos = cpos;
+		__entry->len = len;
+		__entry->phys = phys;
+	),
+	TP_printk("%llu %u %u %u",
+		  __entry->owner, __entry->cpos,
+		  __entry->len, __entry->phys)
+);
+
+DECLARE_EVENT_CLASS(ocfs2__truncate_log_ops,
+	TP_PROTO(unsigned long long blkno, int index,
+		 unsigned int start, unsigned int num),
+	TP_ARGS(blkno, index, start, num),
+	TP_STRUCT__entry(
+		__field(unsigned long long, blkno)
+		__field(int, index)
+		__field(unsigned int, start)
+		__field(unsigned int, num)
+	),
+	TP_fast_assign(
+		__entry->blkno = blkno;
+		__entry->index = index;
+		__entry->start = start;
+		__entry->num = num;
+	),
+	TP_printk("%llu %d %u %u",
+		  __entry->blkno, __entry->index,
+		  __entry->start, __entry->num)
+);
+
+#define DEFINE_OCFS2_TRUNCATE_LOG_OPS_EVENT(name)	\
+DEFINE_EVENT(ocfs2__truncate_log_ops, name,	\
+	TP_PROTO(unsigned long long blkno, int index,	\
+		 unsigned int start, unsigned int num),	\
+	TP_ARGS(blkno, index, start, num))
+
+DEFINE_OCFS2_TRUNCATE_LOG_OPS_EVENT(ocfs2_truncate_log_append);
+
+DEFINE_OCFS2_TRUNCATE_LOG_OPS_EVENT(ocfs2_replay_truncate_records);
+
+DEFINE_OCFS2_ULL_UINT_EVENT(ocfs2_flush_truncate_log);
+
+DEFINE_OCFS2_INT_EVENT(ocfs2_begin_truncate_log_recovery);
+
+DEFINE_OCFS2_INT_EVENT(ocfs2_truncate_log_recovery_num);
+
+DEFINE_OCFS2_ULL_UINT_EVENT(ocfs2_complete_truncate_log_recovery);
+
+DEFINE_OCFS2_ULL_UINT_EVENT(ocfs2_free_cached_blocks);
+
+DEFINE_OCFS2_ULL_UINT_EVENT(ocfs2_cache_cluster_dealloc);
+
+DEFINE_OCFS2_INT_INT_EVENT(ocfs2_run_deallocs);
+
+TRACE_EVENT(ocfs2_cache_block_dealloc,
+	TP_PROTO(int type, int slot, unsigned long long suballoc,
+		 unsigned long long blkno, unsigned int bit),
+	TP_ARGS(type, slot, suballoc, blkno, bit),
+	TP_STRUCT__entry(
+		__field(int, type)
+		__field(int, slot)
+		__field(unsigned long long, suballoc)
+		__field(unsigned long long, blkno)
+		__field(unsigned int, bit)
+	),
+	TP_fast_assign(
+		__entry->type = type;
+		__entry->slot = slot;
+		__entry->suballoc = suballoc;
+		__entry->blkno = blkno;
+		__entry->bit = bit;
+	),
+	TP_printk("%d %d %llu %llu %u",
+		  __entry->type, __entry->slot, __entry->suballoc,
+		  __entry->blkno, __entry->bit)
+);
+
+/* End of trace events for fs/ocfs2/alloc.c. */
+
+/* Trace events for fs/ocfs2/localalloc.c. */
+
+DEFINE_OCFS2_UINT_UINT_UINT_EVENT(ocfs2_la_set_sizes);
+
+DEFINE_OCFS2_ULL_INT_INT_INT_EVENT(ocfs2_alloc_should_use_local);
+
+DEFINE_OCFS2_INT_EVENT(ocfs2_load_local_alloc);
+
+DEFINE_OCFS2_INT_EVENT(ocfs2_begin_local_alloc_recovery);
+
+DEFINE_OCFS2_ULL_INT_INT_INT_EVENT(ocfs2_reserve_local_alloc_bits);
+
+DEFINE_OCFS2_UINT_EVENT(ocfs2_local_alloc_count_bits);
+
+DEFINE_OCFS2_INT_INT_EVENT(ocfs2_local_alloc_find_clear_bits_search_bitmap);
+
+DEFINE_OCFS2_ULL_INT_INT_INT_EVENT(ocfs2_local_alloc_find_clear_bits);
+
+DEFINE_OCFS2_INT_INT_EVENT(ocfs2_sync_local_to_main);
+
+TRACE_EVENT(ocfs2_sync_local_to_main_free,
+	TP_PROTO(int count, int bit, unsigned long long start_blk,
+		 unsigned long long blkno),
+	TP_ARGS(count, bit, start_blk, blkno),
+	TP_STRUCT__entry(
+		__field(int, count)
+		__field(int, bit)
+		__field(unsigned long long, start_blk)
+		__field(unsigned long long, blkno)
+	),
+	TP_fast_assign(
+		__entry->count = count;
+		__entry->bit = bit;
+		__entry->start_blk = start_blk;
+		__entry->blkno = blkno;
+	),
+	TP_printk("%d %d %llu %llu",
+		  __entry->count, __entry->bit, __entry->start_blk,
+		  __entry->blkno)
+);
+
+DEFINE_OCFS2_INT_INT_EVENT(ocfs2_local_alloc_new_window);
+
+DEFINE_OCFS2_ULL_UINT_EVENT(ocfs2_local_alloc_new_window_result);
+
+/* End of trace events for fs/ocfs2/localalloc.c. */
+
+/* Trace events for fs/ocfs2/resize.c. */
+
+DEFINE_OCFS2_UINT_UINT_EVENT(ocfs2_update_last_group_and_inode);
+
+DEFINE_OCFS2_ULL_UINT_EVENT(ocfs2_group_extend);
+
+DEFINE_OCFS2_ULL_UINT_UINT_UINT_EVENT(ocfs2_group_add);
+
+/* End of trace events for fs/ocfs2/resize.c. */
+
+/* Trace events for fs/ocfs2/suballoc.c. */
+
+DEFINE_OCFS2_ULL_EVENT(ocfs2_validate_group_descriptor);
+
+DEFINE_OCFS2_ULL_UINT_EVENT(ocfs2_block_group_alloc_contig);
+
+DEFINE_OCFS2_ULL_UINT_EVENT(ocfs2_block_group_alloc_discontig);
+
+DEFINE_OCFS2_ULL_EVENT(ocfs2_block_group_alloc);
+
+DEFINE_OCFS2_UINT_UINT_EVENT(ocfs2_reserve_suballoc_bits_nospc);
+
+DEFINE_OCFS2_UINT_UINT_UINT_EVENT(ocfs2_reserve_suballoc_bits_no_new_group);
+
+DEFINE_OCFS2_ULL_EVENT(ocfs2_reserve_new_inode_new_group);
+
+DEFINE_OCFS2_UINT_UINT_EVENT(ocfs2_block_group_set_bits);
+
+TRACE_EVENT(ocfs2_relink_block_group,
+	TP_PROTO(unsigned long long i_blkno, unsigned int chain,
+		 unsigned long long bg_blkno,
+		 unsigned long long prev_blkno),
+	TP_ARGS(i_blkno, chain, bg_blkno, prev_blkno),
+	TP_STRUCT__entry(
+		__field(unsigned long long, i_blkno)
+		__field(unsigned int, chain)
+		__field(unsigned long long, bg_blkno)
+		__field(unsigned long long, prev_blkno)
+	),
+	TP_fast_assign(
+		__entry->i_blkno = i_blkno;
+		__entry->chain = chain;
+		__entry->bg_blkno = bg_blkno;
+		__entry->prev_blkno = prev_blkno;
+	),
+	TP_printk("%llu %u %llu %llu",
+		  __entry->i_blkno, __entry->chain, __entry->bg_blkno,
+		  __entry->prev_blkno)
+);
+
+DEFINE_OCFS2_ULL_UINT_UINT_UINT_EVENT(ocfs2_cluster_group_search_wrong_max_bits);
+
+DEFINE_OCFS2_ULL_ULL_EVENT(ocfs2_cluster_group_search_max_block);
+
+DEFINE_OCFS2_ULL_ULL_EVENT(ocfs2_block_group_search_max_block);
+
+DEFINE_OCFS2_ULL_UINT_UINT_EVENT(ocfs2_search_chain_begin);
+
+DEFINE_OCFS2_ULL_UINT_EVENT(ocfs2_search_chain_succ);
+
+DEFINE_OCFS2_ULL_UINT_EVENT(ocfs2_search_chain_end);
+
+DEFINE_OCFS2_UINT_EVENT(ocfs2_claim_suballoc_bits);
+
+DEFINE_OCFS2_ULL_UINT_EVENT(ocfs2_claim_new_inode_at_loc);
+
+DEFINE_OCFS2_UINT_UINT_EVENT(ocfs2_block_group_clear_bits);
+
+TRACE_EVENT(ocfs2_free_suballoc_bits,
+	TP_PROTO(unsigned long long inode, unsigned long long group,
+		 unsigned int start_bit, unsigned int count),
+	TP_ARGS(inode, group, start_bit, count),
+	TP_STRUCT__entry(
+		__field(unsigned long long, inode)
+		__field(unsigned long long, group)
+		__field(unsigned int, start_bit)
+		__field(unsigned int, count)
+	),
+	TP_fast_assign(
+		__entry->inode = inode;
+		__entry->group = group;
+		__entry->start_bit = start_bit;
+		__entry->count = count;
+	),
+	TP_printk("%llu %llu %u %u", __entry->inode, __entry->group,
+		  __entry->start_bit, __entry->count)
+);
+
+TRACE_EVENT(ocfs2_free_clusters,
+	TP_PROTO(unsigned long long bg_blkno, unsigned long long start_blk,
+		 unsigned int start_bit, unsigned int count),
+	TP_ARGS(bg_blkno, start_blk, start_bit, count),
+	TP_STRUCT__entry(
+		__field(unsigned long long, bg_blkno)
+		__field(unsigned long long, start_blk)
+		__field(unsigned int, start_bit)
+		__field(unsigned int, count)
+	),
+	TP_fast_assign(
+		__entry->bg_blkno = bg_blkno;
+		__entry->start_blk = start_blk;
+		__entry->start_bit = start_bit;
+		__entry->count = count;
+	),
+	TP_printk("%llu %llu %u %u", __entry->bg_blkno, __entry->start_blk,
+		  __entry->start_bit, __entry->count)
+);
+
+DEFINE_OCFS2_ULL_EVENT(ocfs2_get_suballoc_slot_bit);
+
+DEFINE_OCFS2_ULL_UINT_EVENT(ocfs2_test_suballoc_bit);
+
+DEFINE_OCFS2_ULL_EVENT(ocfs2_test_inode_bit);
+
+/* End of trace events for fs/ocfs2/suballoc.c. */
+
+/* Trace events for fs/ocfs2/refcounttree.c. */
+
+DEFINE_OCFS2_ULL_EVENT(ocfs2_validate_refcount_block);
+
+DEFINE_OCFS2_ULL_EVENT(ocfs2_purge_refcount_trees);
+
+DEFINE_OCFS2_ULL_EVENT(ocfs2_create_refcount_tree);
+
+DEFINE_OCFS2_ULL_EVENT(ocfs2_create_refcount_tree_blkno);
+
+DEFINE_OCFS2_ULL_INT_INT_INT_EVENT(ocfs2_change_refcount_rec);
+
+DEFINE_OCFS2_ULL_UINT_EVENT(ocfs2_expand_inline_ref_root);
+
+DEFINE_OCFS2_ULL_UINT_UINT_EVENT(ocfs2_divide_leaf_refcount_block);
+
+DEFINE_OCFS2_ULL_UINT_EVENT(ocfs2_new_leaf_refcount_block);
+
+DECLARE_EVENT_CLASS(ocfs2__refcount_tree_ops,
+	TP_PROTO(unsigned long long blkno, int index,
+		 unsigned long long cpos,
+		 unsigned int clusters, unsigned int refcount),
+	TP_ARGS(blkno, index, cpos, clusters, refcount),
+	TP_STRUCT__entry(
+		__field(unsigned long long, blkno)
+		__field(int, index)
+		__field(unsigned long long, cpos)
+		__field(unsigned int, clusters)
+		__field(unsigned int, refcount)
+	),
+	TP_fast_assign(
+		__entry->blkno = blkno;
+		__entry->index = index;
+		__entry->cpos = cpos;
+		__entry->clusters = clusters;
+		__entry->refcount = refcount;
+	),
+	TP_printk("%llu %d %llu %u %u", __entry->blkno, __entry->index,
+		  __entry->cpos, __entry->clusters, __entry->refcount)
+);
+
+#define DEFINE_OCFS2_REFCOUNT_TREE_OPS_EVENT(name)	\
+DEFINE_EVENT(ocfs2__refcount_tree_ops, name,		\
+	TP_PROTO(unsigned long long blkno, int index,	\
+		 unsigned long long cpos,		\
+		 unsigned int count, unsigned int refcount),	\
+	TP_ARGS(blkno, index, cpos, count, refcount))
+
+DEFINE_OCFS2_REFCOUNT_TREE_OPS_EVENT(ocfs2_insert_refcount_rec);
+
+TRACE_EVENT(ocfs2_split_refcount_rec,
+	TP_PROTO(unsigned long long cpos,
+		 unsigned int clusters, unsigned int refcount,
+		 unsigned long long split_cpos,
+		 unsigned int split_clusters, unsigned int split_refcount),
+	TP_ARGS(cpos, clusters, refcount,
+		split_cpos, split_clusters, split_refcount),
+	TP_STRUCT__entry(
+		__field(unsigned long long, cpos)
+		__field(unsigned int, clusters)
+		__field(unsigned int, refcount)
+		__field(unsigned long long, split_cpos)
+		__field(unsigned int, split_clusters)
+		__field(unsigned int, split_refcount)
+	),
+	TP_fast_assign(
+		__entry->cpos = cpos;
+		__entry->clusters = clusters;
+		__entry->refcount = refcount;
+		__entry->split_cpos = split_cpos;
+		__entry->split_clusters = split_clusters;
+		__entry->split_refcount	= split_refcount;
+	),
+	TP_printk("%llu %u %u %llu %u %u",
+		  __entry->cpos, __entry->clusters, __entry->refcount,
+		  __entry->split_cpos, __entry->split_clusters,
+		  __entry->split_refcount)
+);
+
+DEFINE_OCFS2_REFCOUNT_TREE_OPS_EVENT(ocfs2_split_refcount_rec_insert);
+
+DEFINE_OCFS2_ULL_ULL_UINT_EVENT(ocfs2_increase_refcount_begin);
+
+DEFINE_OCFS2_ULL_UINT_UINT_EVENT(ocfs2_increase_refcount_change);
+
+DEFINE_OCFS2_ULL_UINT_EVENT(ocfs2_increase_refcount_insert);
+
+DEFINE_OCFS2_ULL_UINT_UINT_EVENT(ocfs2_increase_refcount_split);
+
+DEFINE_OCFS2_ULL_ULL_UINT_EVENT(ocfs2_remove_refcount_extent);
+
+DEFINE_OCFS2_ULL_EVENT(ocfs2_restore_refcount_block);
+
+DEFINE_OCFS2_ULL_ULL_UINT_EVENT(ocfs2_decrease_refcount_rec);
+
+TRACE_EVENT(ocfs2_decrease_refcount,
+	TP_PROTO(unsigned long long owner,
+		 unsigned long long cpos,
+		 unsigned int len, int delete),
+	TP_ARGS(owner, cpos, len, delete),
+	TP_STRUCT__entry(
+		__field(unsigned long long, owner)
+		__field(unsigned long long, cpos)
+		__field(unsigned int, len)
+		__field(int, delete)
+	),
+	TP_fast_assign(
+		__entry->owner = owner;
+		__entry->cpos = cpos;
+		__entry->len = len;
+		__entry->delete = delete;
+	),
+	TP_printk("%llu %llu %u %d",
+		  __entry->owner, __entry->cpos, __entry->len, __entry->delete)
+);
+
+DEFINE_OCFS2_ULL_UINT_UINT_UINT_EVENT(ocfs2_mark_extent_refcounted);
+
+DEFINE_OCFS2_ULL_UINT_UINT_UINT_EVENT(ocfs2_calc_refcount_meta_credits);
+
+TRACE_EVENT(ocfs2_calc_refcount_meta_credits_iterate,
+	TP_PROTO(int recs_add, unsigned long long cpos,
+		 unsigned int clusters, unsigned long long r_cpos,
+		 unsigned int r_clusters, unsigned int refcount, int index),
+	TP_ARGS(recs_add, cpos, clusters, r_cpos, r_clusters, refcount, index),
+	TP_STRUCT__entry(
+		__field(int, recs_add)
+		__field(unsigned long long, cpos)
+		__field(unsigned int, clusters)
+		__field(unsigned long long, r_cpos)
+		__field(unsigned int, r_clusters)
+		__field(unsigned int, refcount)
+		__field(int, index)
+	),
+	TP_fast_assign(
+		__entry->recs_add = recs_add;
+		__entry->cpos = cpos;
+		__entry->clusters = clusters;
+		__entry->r_cpos = r_cpos;
+		__entry->r_clusters = r_clusters;
+		__entry->refcount = refcount;
+		__entry->index = index;
+	),
+	TP_printk("%d %llu %u %llu %u %u %d",
+		  __entry->recs_add, __entry->cpos, __entry->clusters,
+		  __entry->r_cpos, __entry->r_clusters,
+		  __entry->refcount, __entry->index)
+);
+
+DEFINE_OCFS2_INT_INT_EVENT(ocfs2_add_refcount_flag);
+
+DEFINE_OCFS2_INT_INT_EVENT(ocfs2_prepare_refcount_change_for_del);
+
+DEFINE_OCFS2_INT_INT_EVENT(ocfs2_lock_refcount_allocators);
+
+DEFINE_OCFS2_ULL_UINT_UINT_UINT_EVENT(ocfs2_duplicate_clusters_by_page);
+
+DEFINE_OCFS2_ULL_UINT_UINT_UINT_EVENT(ocfs2_duplicate_clusters_by_jbd);
+
+TRACE_EVENT(ocfs2_clear_ext_refcount,
+	TP_PROTO(unsigned long long ino, unsigned int cpos,
+		 unsigned int len, unsigned int p_cluster,
+		 unsigned int ext_flags),
+	TP_ARGS(ino, cpos, len, p_cluster, ext_flags),
+	TP_STRUCT__entry(
+		__field(unsigned long long, ino)
+		__field(unsigned int, cpos)
+		__field(unsigned int, len)
+		__field(unsigned int, p_cluster)
+		__field(unsigned int, ext_flags)
+	),
+	TP_fast_assign(
+		__entry->ino = ino;
+		__entry->cpos = cpos;
+		__entry->len = len;
+		__entry->p_cluster = p_cluster;
+		__entry->ext_flags = ext_flags;
+	),
+	TP_printk("%llu %u %u %u %u",
+		  __entry->ino, __entry->cpos, __entry->len,
+		  __entry->p_cluster, __entry->ext_flags)
+);
+
+TRACE_EVENT(ocfs2_replace_clusters,
+	TP_PROTO(unsigned long long ino, unsigned int cpos,
+		 unsigned int old, unsigned int new, unsigned int len,
+		 unsigned int ext_flags),
+	TP_ARGS(ino, cpos, old, new, len, ext_flags),
+	TP_STRUCT__entry(
+		__field(unsigned long long, ino)
+		__field(unsigned int, cpos)
+		__field(unsigned int, old)
+		__field(unsigned int, new)
+		__field(unsigned int, len)
+		__field(unsigned int, ext_flags)
+	),
+	TP_fast_assign(
+		__entry->ino = ino;
+		__entry->cpos = cpos;
+		__entry->old = old;
+		__entry->new = new;
+		__entry->len = len;
+		__entry->ext_flags = ext_flags;
+	),
+	TP_printk("%llu %u %u %u %u %u",
+		  __entry->ino, __entry->cpos, __entry->old, __entry->new,
+		  __entry->len, __entry->ext_flags)
+);
+
+DEFINE_OCFS2_ULL_UINT_UINT_UINT_EVENT(ocfs2_make_clusters_writable);
+
+TRACE_EVENT(ocfs2_refcount_cow_hunk,
+	TP_PROTO(unsigned long long ino, unsigned int cpos,
+		 unsigned int write_len, unsigned int max_cpos,
+		 unsigned int cow_start, unsigned int cow_len),
+	TP_ARGS(ino, cpos, write_len, max_cpos, cow_start, cow_len),
+	TP_STRUCT__entry(
+		__field(unsigned long long, ino)
+		__field(unsigned int, cpos)
+		__field(unsigned int, write_len)
+		__field(unsigned int, max_cpos)
+		__field(unsigned int, cow_start)
+		__field(unsigned int, cow_len)
+	),
+	TP_fast_assign(
+		__entry->ino = ino;
+		__entry->cpos = cpos;
+		__entry->write_len = write_len;
+		__entry->max_cpos = max_cpos;
+		__entry->cow_start = cow_start;
+		__entry->cow_len = cow_len;
+	),
+	TP_printk("%llu %u %u %u %u %u",
+		  __entry->ino, __entry->cpos, __entry->write_len,
+		  __entry->max_cpos, __entry->cow_start, __entry->cow_len)
+);
+
+/* End of trace events for fs/ocfs2/refcounttree.c. */
+
+/* Trace events for fs/ocfs2/aops.c. */
+
+DECLARE_EVENT_CLASS(ocfs2__get_block,
+	TP_PROTO(unsigned long long ino, unsigned long long iblock,
+		 void *bh_result, int create),
+	TP_ARGS(ino, iblock, bh_result, create),
+	TP_STRUCT__entry(
+		__field(unsigned long long, ino)
+		__field(unsigned long long, iblock)
+		__field(void *, bh_result)
+		__field(int, create)
+	),
+	TP_fast_assign(
+		__entry->ino = ino;
+		__entry->iblock = iblock;
+		__entry->bh_result = bh_result;
+		__entry->create = create;
+	),
+	TP_printk("%llu %llu %p %d",
+		  __entry->ino, __entry->iblock,
+		  __entry->bh_result, __entry->create)
+);
+
+#define DEFINE_OCFS2_GET_BLOCK_EVENT(name)	\
+DEFINE_EVENT(ocfs2__get_block, name,	\
+	TP_PROTO(unsigned long long ino, unsigned long long iblock,	\
+		 void *bh_result, int create),	\
+	TP_ARGS(ino, iblock, bh_result, create))
+
+DEFINE_OCFS2_GET_BLOCK_EVENT(ocfs2_symlink_get_block);
+
+DEFINE_OCFS2_GET_BLOCK_EVENT(ocfs2_get_block);
+
+DEFINE_OCFS2_ULL_ULL_EVENT(ocfs2_get_block_end);
+
+DEFINE_OCFS2_ULL_ULL_EVENT(ocfs2_readpage);
+
+DEFINE_OCFS2_ULL_ULL_EVENT(ocfs2_writepage);
+
+DEFINE_OCFS2_ULL_ULL_EVENT(ocfs2_bmap);
+
+TRACE_EVENT(ocfs2_try_to_write_inline_data,
+	TP_PROTO(unsigned long long ino, unsigned int len,
+		 unsigned long long pos, unsigned int flags),
+	TP_ARGS(ino, len, pos, flags),
+	TP_STRUCT__entry(
+		__field(unsigned long long, ino)
+		__field(unsigned int, len)
+		__field(unsigned long long, pos)
+		__field(unsigned int, flags)
+	),
+	TP_fast_assign(
+		__entry->ino = ino;
+		__entry->len = len;
+		__entry->pos = pos;
+		__entry->flags = flags;
+	),
+	TP_printk("%llu %u %llu 0x%x",
+		  __entry->ino, __entry->len, __entry->pos, __entry->flags)
+);
+
+TRACE_EVENT(ocfs2_write_begin_nolock,
+	TP_PROTO(unsigned long long ino,
+		 long long i_size, unsigned int i_clusters,
+		 unsigned long long pos, unsigned int len,
+		 unsigned int flags, void *page,
+		 unsigned int clusters, unsigned int extents_to_split),
+	TP_ARGS(ino, i_size, i_clusters, pos, len, flags,
+		page, clusters, extents_to_split),
+	TP_STRUCT__entry(
+		__field(unsigned long long, ino)
+		__field(long long, i_size)
+		__field(unsigned int, i_clusters)
+		__field(unsigned long long, pos)
+		__field(unsigned int, len)
+		__field(unsigned int, flags)
+		__field(void *, page)
+		__field(unsigned int, clusters)
+		__field(unsigned int, extents_to_split)
+	),
+	TP_fast_assign(
+		__entry->ino = ino;
+		__entry->i_size = i_size;
+		__entry->i_clusters = i_clusters;
+		__entry->pos = pos;
+		__entry->len = len;
+		__entry->flags = flags;
+		__entry->page = page;
+		__entry->clusters = clusters;
+		__entry->extents_to_split = extents_to_split;
+	),
+	TP_printk("%llu %lld %u %llu %u %u %p %u %u",
+		  __entry->ino, __entry->i_size, __entry->i_clusters,
+		  __entry->pos, __entry->len,
+		  __entry->flags, __entry->page, __entry->clusters,
+		  __entry->extents_to_split)
+);
+
+TRACE_EVENT(ocfs2_write_end_inline,
+	TP_PROTO(unsigned long long ino,
+		 unsigned long long pos, unsigned int copied,
+		 unsigned int id_count, unsigned int features),
+	TP_ARGS(ino, pos, copied, id_count, features),
+	TP_STRUCT__entry(
+		__field(unsigned long long, ino)
+		__field(unsigned long long, pos)
+		__field(unsigned int, copied)
+		__field(unsigned int, id_count)
+		__field(unsigned int, features)
+	),
+	TP_fast_assign(
+		__entry->ino = ino;
+		__entry->pos = pos;
+		__entry->copied = copied;
+		__entry->id_count = id_count;
+		__entry->features = features;
+	),
+	TP_printk("%llu %llu %u %u %u",
+		  __entry->ino, __entry->pos, __entry->copied,
+		  __entry->id_count, __entry->features)
+);
+
+/* End of trace events for fs/ocfs2/aops.c. */
+
+/* Trace events for fs/ocfs2/mmap.c. */
+
+TRACE_EVENT(ocfs2_fault,
+	TP_PROTO(unsigned long long ino,
+		 void *area, void *page, unsigned long pgoff),
+	TP_ARGS(ino, area, page, pgoff),
+	TP_STRUCT__entry(
+		__field(unsigned long long, ino)
+		__field(void *, area)
+		__field(void *, page)
+		__field(unsigned long, pgoff)
+	),
+	TP_fast_assign(
+		__entry->ino = ino;
+		__entry->area = area;
+		__entry->page = page;
+		__entry->pgoff = pgoff;
+	),
+	TP_printk("%llu %p %p %lu",
+		  __entry->ino, __entry->area, __entry->page, __entry->pgoff)
+);
+
+/* End of trace events for fs/ocfs2/mmap.c. */
+
+/* Trace events for fs/ocfs2/file.c. */
+
+DECLARE_EVENT_CLASS(ocfs2__file_ops,
+	TP_PROTO(void *inode, void *file, void *dentry,
+		 unsigned long long ino,
+		 unsigned int d_len, const unsigned char *d_name,
+		 unsigned long long para),
+	TP_ARGS(inode, file, dentry, ino, d_len, d_name, para),
+	TP_STRUCT__entry(
+		__field(void *, inode)
+		__field(void *, file)
+		__field(void *, dentry)
+		__field(unsigned long long, ino)
+		__field(unsigned int, d_len)
+		__string(d_name, d_name)
+		__field(unsigned long long, para)
+	),
+	TP_fast_assign(
+		__entry->inode = inode;
+		__entry->file = file;
+		__entry->dentry = dentry;
+		__entry->ino = ino;
+		__entry->d_len = d_len;
+		__assign_str(d_name, d_name);
+		__entry->para = para;
+	),
+	TP_printk("%p %p %p %llu %llu %.*s", __entry->inode, __entry->file,
+		  __entry->dentry, __entry->ino, __entry->para,
+		  __entry->d_len, __get_str(d_name))
+);
+
+#define DEFINE_OCFS2_FILE_OPS(name)				\
+DEFINE_EVENT(ocfs2__file_ops, name,				\
+TP_PROTO(void *inode, void *file, void *dentry,			\
+	 unsigned long long ino,				\
+	 unsigned int d_len, const unsigned char *d_name,	\
+	 unsigned long long mode),				\
+	TP_ARGS(inode, file, dentry, ino, d_len, d_name, mode))
+
+DEFINE_OCFS2_FILE_OPS(ocfs2_file_open);
+
+DEFINE_OCFS2_FILE_OPS(ocfs2_file_release);
+
+DEFINE_OCFS2_FILE_OPS(ocfs2_sync_file);
+
+DEFINE_OCFS2_FILE_OPS(ocfs2_file_aio_write);
+
+DEFINE_OCFS2_FILE_OPS(ocfs2_file_splice_write);
+
+DEFINE_OCFS2_FILE_OPS(ocfs2_file_splice_read);
+
+DEFINE_OCFS2_FILE_OPS(ocfs2_file_aio_read);
+
+DEFINE_OCFS2_ULL_ULL_ULL_EVENT(ocfs2_truncate_file);
+
+DEFINE_OCFS2_ULL_ULL_EVENT(ocfs2_truncate_file_error);
+
+TRACE_EVENT(ocfs2_extend_allocation,
+	TP_PROTO(unsigned long long ip_blkno, unsigned long long size,
+		 unsigned int clusters, unsigned int clusters_to_add,
+		 int why, int restart_func),
+	TP_ARGS(ip_blkno, size, clusters, clusters_to_add, why, restart_func),
+	TP_STRUCT__entry(
+		__field(unsigned long long, ip_blkno)
+		__field(unsigned long long, size)
+		__field(unsigned int, clusters)
+		__field(unsigned int, clusters_to_add)
+		__field(int, why)
+		__field(int, restart_func)
+	),
+	TP_fast_assign(
+		__entry->ip_blkno = ip_blkno;
+		__entry->size = size;
+		__entry->clusters = clusters;
+		__entry->clusters_to_add = clusters_to_add;
+		__entry->why = why;
+		__entry->restart_func = restart_func;
+	),
+	TP_printk("%llu %llu %u %u %d %d",
+		  __entry->ip_blkno, __entry->size, __entry->clusters,
+		  __entry->clusters_to_add, __entry->why, __entry->restart_func)
+);
+
+TRACE_EVENT(ocfs2_extend_allocation_end,
+	TP_PROTO(unsigned long long ino,
+		 unsigned int di_clusters, unsigned long long di_size,
+		 unsigned int ip_clusters, unsigned long long i_size),
+	TP_ARGS(ino, di_clusters, di_size, ip_clusters, i_size),
+	TP_STRUCT__entry(
+		__field(unsigned long long, ino)
+		__field(unsigned int, di_clusters)
+		__field(unsigned long long, di_size)
+		__field(unsigned int, ip_clusters)
+		__field(unsigned long long, i_size)
+	),
+	TP_fast_assign(
+		__entry->ino = ino;
+		__entry->di_clusters = di_clusters;
+		__entry->di_size = di_size;
+		__entry->ip_clusters = ip_clusters;
+		__entry->i_size = i_size;
+	),
+	TP_printk("%llu %u %llu %u %llu", __entry->ino, __entry->di_clusters,
+		  __entry->di_size, __entry->ip_clusters, __entry->i_size)
+);
+
+TRACE_EVENT(ocfs2_write_zero_page,
+	TP_PROTO(unsigned long long ino,
+		 unsigned long long abs_from, unsigned long long abs_to,
+		 unsigned long index, unsigned int zero_from,
+		 unsigned int zero_to),
+	TP_ARGS(ino, abs_from, abs_to, index, zero_from, zero_to),
+	TP_STRUCT__entry(
+		__field(unsigned long long, ino)
+		__field(unsigned long long, abs_from)
+		__field(unsigned long long, abs_to)
+		__field(unsigned long, index)
+		__field(unsigned int, zero_from)
+		__field(unsigned int, zero_to)
+	),
+	TP_fast_assign(
+		__entry->ino = ino;
+		__entry->abs_from = abs_from;
+		__entry->abs_to = abs_to;
+		__entry->index = index;
+		__entry->zero_from = zero_from;
+		__entry->zero_to = zero_to;
+	),
+	TP_printk("%llu %llu %llu %lu %u %u", __entry->ino,
+		  __entry->abs_from, __entry->abs_to,
+		  __entry->index, __entry->zero_from, __entry->zero_to)
+);
+
+DEFINE_OCFS2_ULL_ULL_ULL_EVENT(ocfs2_zero_extend_range);
+
+DEFINE_OCFS2_ULL_ULL_ULL_EVENT(ocfs2_zero_extend);
+
+TRACE_EVENT(ocfs2_setattr,
+	TP_PROTO(void *inode, void *dentry,
+		 unsigned long long ino,
+		 unsigned int d_len, const unsigned char *d_name,
+		 unsigned int ia_valid, unsigned int ia_mode,
+		 unsigned int ia_uid, unsigned int ia_gid),
+	TP_ARGS(inode, dentry, ino, d_len, d_name,
+		ia_valid, ia_mode, ia_uid, ia_gid),
+	TP_STRUCT__entry(
+		__field(void *, inode)
+		__field(void *, dentry)
+		__field(unsigned long long, ino)
+		__field(unsigned int, d_len)
+		__string(d_name, d_name)
+		__field(unsigned int, ia_valid)
+		__field(unsigned int, ia_mode)
+		__field(unsigned int, ia_uid)
+		__field(unsigned int, ia_gid)
+	),
+	TP_fast_assign(
+		__entry->inode = inode;
+		__entry->dentry = dentry;
+		__entry->ino = ino;
+		__entry->d_len = d_len;
+		__assign_str(d_name, d_name);
+		__entry->ia_valid = ia_valid;
+		__entry->ia_mode = ia_mode;
+		__entry->ia_uid = ia_uid;
+		__entry->ia_gid = ia_gid;
+	),
+	TP_printk("%p %p %llu %.*s %u %u %u %u", __entry->inode,
+		  __entry->dentry, __entry->ino, __entry->d_len,
+		  __get_str(d_name), __entry->ia_valid, __entry->ia_mode,
+		  __entry->ia_uid, __entry->ia_gid)
+);
+
+DEFINE_OCFS2_ULL_UINT_EVENT(ocfs2_write_remove_suid);
+
+DEFINE_OCFS2_ULL_ULL_ULL_EVENT(ocfs2_zero_partial_clusters);
+
+DEFINE_OCFS2_ULL_ULL_EVENT(ocfs2_zero_partial_clusters_range1);
+
+DEFINE_OCFS2_ULL_ULL_EVENT(ocfs2_zero_partial_clusters_range2);
+
+DEFINE_OCFS2_ULL_ULL_ULL_EVENT(ocfs2_remove_inode_range);
+
+TRACE_EVENT(ocfs2_prepare_inode_for_write,
+	TP_PROTO(unsigned long long ino, unsigned long long saved_pos,
+		 int appending, unsigned long count,
+		 int *direct_io, int *has_refcount),
+	TP_ARGS(ino, saved_pos, appending, count, direct_io, has_refcount),
+	TP_STRUCT__entry(
+		__field(unsigned long long, ino)
+		__field(unsigned long long, saved_pos)
+		__field(int, appending)
+		__field(unsigned long, count)
+		__field(int, direct_io)
+		__field(int, has_refcount)
+	),
+	TP_fast_assign(
+		__entry->ino = ino;
+		__entry->saved_pos = saved_pos;
+		__entry->appending = appending;
+		__entry->count = count;
+		__entry->direct_io = direct_io ? *direct_io : -1;
+		__entry->has_refcount = has_refcount ? *has_refcount : -1;
+	),
+	TP_printk("%llu %llu %d %lu %d %d", __entry->ino,
+		  __entry->saved_pos, __entry->appending, __entry->count,
+		  __entry->direct_io, __entry->has_refcount)
+);
+
+DEFINE_OCFS2_INT_EVENT(generic_file_aio_read_ret);
+
+/* End of trace events for fs/ocfs2/file.c. */
+
+/* Trace events for fs/ocfs2/inode.c. */
+
+TRACE_EVENT(ocfs2_iget_begin,
+	TP_PROTO(unsigned long long ino, unsigned int flags, int sysfile_type),
+	TP_ARGS(ino, flags, sysfile_type),
+	TP_STRUCT__entry(
+		__field(unsigned long long, ino)
+		__field(unsigned int, flags)
+		__field(int, sysfile_type)
+	),
+	TP_fast_assign(
+		__entry->ino = ino;
+		__entry->flags = flags;
+		__entry->sysfile_type = sysfile_type;
+	),
+	TP_printk("%llu %u %d", __entry->ino,
+		  __entry->flags, __entry->sysfile_type)
+);
+
+DEFINE_OCFS2_ULL_EVENT(ocfs2_iget5_locked);
+
+TRACE_EVENT(ocfs2_iget_end,
+	TP_PROTO(void *inode, unsigned long long ino),
+	TP_ARGS(inode, ino),
+	TP_STRUCT__entry(
+		__field(void *, inode)
+		__field(unsigned long long, ino)
+	),
+	TP_fast_assign(
+		__entry->inode = inode;
+		__entry->ino = ino;
+	),
+	TP_printk("%p %llu", __entry->inode, __entry->ino)
+);
+
+TRACE_EVENT(ocfs2_find_actor,
+	TP_PROTO(void *inode, unsigned long long ino,
+		 void *args,  unsigned long long fi_blkno),
+	TP_ARGS(inode, ino, args, fi_blkno),
+	TP_STRUCT__entry(
+		__field(void *, inode)
+		__field(unsigned long long, ino)
+		__field(void *, args)
+		__field(unsigned long long, fi_blkno)
+	),
+	TP_fast_assign(
+		__entry->inode = inode;
+		__entry->ino = ino;
+		__entry->args = args;
+		__entry->fi_blkno = fi_blkno;
+	),
+	TP_printk("%p %llu %p %llu", __entry->inode, __entry->ino,
+		  __entry->args, __entry->fi_blkno)
+);
+
+DEFINE_OCFS2_ULL_UINT_EVENT(ocfs2_populate_inode);
+
+DEFINE_OCFS2_ULL_INT_EVENT(ocfs2_read_locked_inode);
+
+DEFINE_OCFS2_INT_INT_EVENT(ocfs2_check_orphan_recovery_state);
+
+DEFINE_OCFS2_ULL_EVENT(ocfs2_validate_inode_block);
+
+TRACE_EVENT(ocfs2_inode_is_valid_to_delete,
+	TP_PROTO(void *task, void *dc_task, unsigned long long ino,
+		 unsigned int flags),
+	TP_ARGS(task, dc_task, ino, flags),
+	TP_STRUCT__entry(
+		__field(void *, task)
+		__field(void *, dc_task)
+		__field(unsigned long long, ino)
+		__field(unsigned int, flags)
+	),
+	TP_fast_assign(
+		__entry->task = task;
+		__entry->dc_task = dc_task;
+		__entry->ino = ino;
+		__entry->flags = flags;
+	),
+	TP_printk("%p %p %llu %u", __entry->task, __entry->dc_task,
+		  __entry->ino, __entry->flags)
+);
+
+DEFINE_OCFS2_ULL_UINT_EVENT(ocfs2_query_inode_wipe_begin);
+
+DEFINE_OCFS2_UINT_EVENT(ocfs2_query_inode_wipe_succ);
+
+DEFINE_OCFS2_INT_INT_EVENT(ocfs2_query_inode_wipe_end);
+
+DEFINE_OCFS2_ULL_INT_EVENT(ocfs2_cleanup_delete_inode);
+
+DEFINE_OCFS2_ULL_ULL_UINT_EVENT(ocfs2_delete_inode);
+
+DEFINE_OCFS2_ULL_UINT_EVENT(ocfs2_clear_inode);
+
+DEFINE_OCFS2_ULL_UINT_UINT_EVENT(ocfs2_drop_inode);
+
+TRACE_EVENT(ocfs2_inode_revalidate,
+	TP_PROTO(void *inode, unsigned long long ino,
+		 unsigned int flags),
+	TP_ARGS(inode, ino, flags),
+	TP_STRUCT__entry(
+		__field(void *, inode)
+		__field(unsigned long long, ino)
+		__field(unsigned int, flags)
+	),
+	TP_fast_assign(
+		__entry->inode = inode;
+		__entry->ino = ino;
+		__entry->flags = flags;
+	),
+	TP_printk("%p %llu %u", __entry->inode, __entry->ino, __entry->flags)
+);
+
+DEFINE_OCFS2_ULL_EVENT(ocfs2_mark_inode_dirty);
+
+/* End of trace events for fs/ocfs2/inode.c. */
+
+/* Trace events for fs/ocfs2/extent_map.c. */
+
+TRACE_EVENT(ocfs2_read_virt_blocks,
+	TP_PROTO(void *inode, unsigned long long vblock, int nr,
+		 void *bhs, unsigned int flags, void *validate),
+	TP_ARGS(inode, vblock, nr, bhs, flags, validate),
+	TP_STRUCT__entry(
+		__field(void *, inode)
+		__field(unsigned long long, vblock)
+		__field(int, nr)
+		__field(void *, bhs)
+		__field(unsigned int, flags)
+		__field(void *, validate)
+	),
+	TP_fast_assign(
+		__entry->inode = inode;
+		__entry->vblock = vblock;
+		__entry->nr = nr;
+		__entry->bhs = bhs;
+		__entry->flags = flags;
+		__entry->validate = validate;
+	),
+	TP_printk("%p %llu %d %p %x %p", __entry->inode, __entry->vblock,
+		  __entry->nr, __entry->bhs, __entry->flags, __entry->validate)
+);
+
+/* End of trace events for fs/ocfs2/extent_map.c. */
+
+/* Trace events for fs/ocfs2/slot_map.c. */
+
+DEFINE_OCFS2_UINT_EVENT(ocfs2_refresh_slot_info);
+
+DEFINE_OCFS2_ULL_UINT_EVENT(ocfs2_map_slot_buffers);
+
+DEFINE_OCFS2_ULL_UINT_EVENT(ocfs2_map_slot_buffers_block);
+
+DEFINE_OCFS2_INT_EVENT(ocfs2_find_slot);
+
+/* End of trace events for fs/ocfs2/slot_map.c. */
+
+/* Trace events for fs/ocfs2/heartbeat.c. */
+
+DEFINE_OCFS2_INT_EVENT(ocfs2_do_node_down);
+
+/* End of trace events for fs/ocfs2/heartbeat.c. */
+
+/* Trace events for fs/ocfs2/super.c. */
+
+TRACE_EVENT(ocfs2_remount,
+	TP_PROTO(unsigned long s_flags, unsigned long osb_flags, int flags),
+	TP_ARGS(s_flags, osb_flags, flags),
+	TP_STRUCT__entry(
+		__field(unsigned long, s_flags)
+		__field(unsigned long, osb_flags)
+		__field(int, flags)
+	),
+	TP_fast_assign(
+		__entry->s_flags = s_flags;
+		__entry->osb_flags = osb_flags;
+		__entry->flags = flags;
+	),
+	TP_printk("%lu %lu %d", __entry->s_flags,
+		  __entry->osb_flags, __entry->flags)
+);
+
+TRACE_EVENT(ocfs2_fill_super,
+	TP_PROTO(void *sb, void *data, int silent),
+	TP_ARGS(sb, data, silent),
+	TP_STRUCT__entry(
+		__field(void *, sb)
+		__field(void *, data)
+		__field(int, silent)
+	),
+	TP_fast_assign(
+		__entry->sb = sb;
+		__entry->data = data;
+		__entry->silent = silent;
+	),
+	TP_printk("%p %p %d", __entry->sb,
+		  __entry->data, __entry->silent)
+);
+
+TRACE_EVENT(ocfs2_parse_options,
+	TP_PROTO(int is_remount, char *options),
+	TP_ARGS(is_remount, options),
+	TP_STRUCT__entry(
+		__field(int, is_remount)
+		__string(options, options)
+	),
+	TP_fast_assign(
+		__entry->is_remount = is_remount;
+		__assign_str(options, options);
+	),
+	TP_printk("%d %s", __entry->is_remount, __get_str(options))
+);
+
+DEFINE_OCFS2_POINTER_EVENT(ocfs2_put_super);
+
+TRACE_EVENT(ocfs2_statfs,
+	TP_PROTO(void *sb, void *buf),
+	TP_ARGS(sb, buf),
+	TP_STRUCT__entry(
+		__field(void *, sb)
+		__field(void *, buf)
+	),
+	TP_fast_assign(
+		__entry->sb = sb;
+		__entry->buf = buf;
+	),
+	TP_printk("%p %p", __entry->sb, __entry->buf)
+);
+
+DEFINE_OCFS2_POINTER_EVENT(ocfs2_dismount_volume);
+
+TRACE_EVENT(ocfs2_initialize_super,
+	TP_PROTO(char *label, char *uuid_str, unsigned long long root_dir,
+		 unsigned long long system_dir, int cluster_bits),
+	TP_ARGS(label, uuid_str, root_dir, system_dir, cluster_bits),
+	TP_STRUCT__entry(
+		__string(label, label)
+		__string(uuid_str, uuid_str)
+		__field(unsigned long long, root_dir)
+		__field(unsigned long long, system_dir)
+		__field(int, cluster_bits)
+	),
+	TP_fast_assign(
+		__assign_str(label, label);
+		__assign_str(uuid_str, uuid_str);
+		__entry->root_dir = root_dir;
+		__entry->system_dir = system_dir;
+		__entry->cluster_bits = cluster_bits;
+	),
+	TP_printk("%s %s %llu %llu %d", __get_str(label), __get_str(uuid_str),
+		  __entry->root_dir, __entry->system_dir, __entry->cluster_bits)
+);
+
+/* End of trace events for fs/ocfs2/super.c. */
+
+/* Trace events for fs/ocfs2/xattr.c. */
+
+DEFINE_OCFS2_ULL_EVENT(ocfs2_validate_xattr_block);
+
+DEFINE_OCFS2_UINT_EVENT(ocfs2_xattr_extend_allocation);
+
+TRACE_EVENT(ocfs2_init_xattr_set_ctxt,
+	TP_PROTO(const char *name, int meta, int clusters, int credits),
+	TP_ARGS(name, meta, clusters, credits),
+	TP_STRUCT__entry(
+		__string(name, name)
+		__field(int, meta)
+		__field(int, clusters)
+		__field(int, credits)
+	),
+	TP_fast_assign(
+		__assign_str(name, name);
+		__entry->meta = meta;
+		__entry->clusters = clusters;
+		__entry->credits = credits;
+	),
+	TP_printk("%s %d %d %d", __get_str(name), __entry->meta,
+		  __entry->clusters, __entry->credits)
+);
+
+DECLARE_EVENT_CLASS(ocfs2__xattr_find,
+	TP_PROTO(unsigned long long ino, const char *name, int name_index,
+		 unsigned int hash, unsigned long long location,
+		 int xe_index),
+	TP_ARGS(ino, name, name_index, hash, location, xe_index),
+	TP_STRUCT__entry(
+		__field(unsigned long long, ino)
+		__string(name, name)
+		__field(int, name_index)
+		__field(unsigned int, hash)
+		__field(unsigned long long, location)
+		__field(int, xe_index)
+	),
+	TP_fast_assign(
+		__entry->ino = ino;
+		__assign_str(name, name);
+		__entry->name_index = name_index;
+		__entry->hash = hash;
+		__entry->location = location;
+		__entry->xe_index = xe_index;
+	),
+	TP_printk("%llu %s %d %u %llu %d", __entry->ino, __get_str(name),
+		  __entry->name_index, __entry->hash, __entry->location,
+		  __entry->xe_index)
+);
+
+#define DEFINE_OCFS2_XATTR_FIND_EVENT(name)					\
+DEFINE_EVENT(ocfs2__xattr_find, name,					\
+TP_PROTO(unsigned long long ino, const char *name, int name_index,	\
+	 unsigned int hash, unsigned long long bucket,			\
+	 int xe_index),							\
+	TP_ARGS(ino, name, name_index, hash, bucket, xe_index))
+
+DEFINE_OCFS2_XATTR_FIND_EVENT(ocfs2_xattr_bucket_find);
+
+DEFINE_OCFS2_XATTR_FIND_EVENT(ocfs2_xattr_index_block_find);
+
+DEFINE_OCFS2_XATTR_FIND_EVENT(ocfs2_xattr_index_block_find_rec);
+
+DEFINE_OCFS2_ULL_ULL_UINT_EVENT(ocfs2_iterate_xattr_buckets);
+
+DEFINE_OCFS2_ULL_UINT_EVENT(ocfs2_iterate_xattr_bucket);
+
+DEFINE_OCFS2_ULL_ULL_EVENT(ocfs2_cp_xattr_block_to_bucket_begin);
+
+DEFINE_OCFS2_UINT_UINT_UINT_EVENT(ocfs2_cp_xattr_block_to_bucket_end);
+
+DEFINE_OCFS2_ULL_EVENT(ocfs2_xattr_create_index_block_begin);
+
+DEFINE_OCFS2_ULL_EVENT(ocfs2_xattr_create_index_block);
+
+DEFINE_OCFS2_ULL_UINT_UINT_UINT_EVENT(ocfs2_defrag_xattr_bucket);
+
+DEFINE_OCFS2_ULL_ULL_EVENT(ocfs2_mv_xattr_bucket_cross_cluster);
+
+DEFINE_OCFS2_ULL_ULL_EVENT(ocfs2_divide_xattr_bucket_begin);
+
+DEFINE_OCFS2_UINT_UINT_UINT_EVENT(ocfs2_divide_xattr_bucket_move);
+
+DEFINE_OCFS2_ULL_ULL_UINT_EVENT(ocfs2_cp_xattr_bucket);
+
+DEFINE_OCFS2_ULL_ULL_EVENT(ocfs2_mv_xattr_buckets);
+
+DEFINE_OCFS2_ULL_ULL_UINT_EVENT(ocfs2_adjust_xattr_cross_cluster);
+
+DEFINE_OCFS2_ULL_ULL_UINT_UINT_EVENT(ocfs2_add_new_xattr_cluster_begin);
+
+DEFINE_OCFS2_ULL_UINT_EVENT(ocfs2_add_new_xattr_cluster);
+
+DEFINE_OCFS2_ULL_UINT_UINT_EVENT(ocfs2_add_new_xattr_cluster_insert);
+
+DEFINE_OCFS2_ULL_ULL_UINT_UINT_EVENT(ocfs2_extend_xattr_bucket);
+
+DEFINE_OCFS2_ULL_EVENT(ocfs2_add_new_xattr_bucket);
+
+DEFINE_OCFS2_ULL_UINT_UINT_EVENT(ocfs2_xattr_bucket_value_truncate);
+
+DEFINE_OCFS2_ULL_ULL_UINT_UINT_EVENT(ocfs2_rm_xattr_cluster);
+
+DEFINE_OCFS2_ULL_UINT_EVENT(ocfs2_reflink_xattr_header);
+
+DEFINE_OCFS2_ULL_INT_EVENT(ocfs2_create_empty_xattr_block);
+
+DEFINE_OCFS2_STRING_EVENT(ocfs2_xattr_set_entry_bucket);
+
+DEFINE_OCFS2_STRING_EVENT(ocfs2_xattr_set_entry_index_block);
+
+DEFINE_OCFS2_ULL_UINT_EVENT(ocfs2_xattr_bucket_value_refcount);
+
+DEFINE_OCFS2_ULL_UINT_UINT_EVENT(ocfs2_reflink_xattr_buckets);
+
+DEFINE_OCFS2_ULL_UINT_EVENT(ocfs2_reflink_xattr_rec);
+
+/* End of trace events for fs/ocfs2/xattr.c. */
+
+/* Trace events for fs/ocfs2/reservations.c. */
+
+DEFINE_OCFS2_UINT_UINT_EVENT(ocfs2_resv_insert);
+
+DEFINE_OCFS2_ULL_UINT_UINT_UINT_EVENT(ocfs2_resmap_find_free_bits_begin);
+
+DEFINE_OCFS2_UINT_UINT_EVENT(ocfs2_resmap_find_free_bits_end);
+
+TRACE_EVENT(ocfs2_resv_find_window_begin,
+	TP_PROTO(unsigned int r_start, unsigned int r_end, unsigned int goal,
+		 unsigned int wanted, int empty_root),
+	TP_ARGS(r_start, r_end, goal, wanted, empty_root),
+	TP_STRUCT__entry(
+		__field(unsigned int, r_start)
+		__field(unsigned int, r_end)
+		__field(unsigned int, goal)
+		__field(unsigned int, wanted)
+		__field(int, empty_root)
+	),
+	TP_fast_assign(
+		__entry->r_start = r_start;
+		__entry->r_end = r_end;
+		__entry->goal = goal;
+		__entry->wanted = wanted;
+		__entry->empty_root = empty_root;
+	),
+	TP_printk("%u %u %u %u %d", __entry->r_start, __entry->r_end,
+		  __entry->goal, __entry->wanted, __entry->empty_root)
+);
+
+DEFINE_OCFS2_UINT_UINT_EVENT(ocfs2_resv_find_window_prev);
+
+DEFINE_OCFS2_INT_INT_EVENT(ocfs2_resv_find_window_next);
+
+DEFINE_OCFS2_UINT_UINT_UINT_EVENT(ocfs2_cannibalize_resv_begin);
+
+TRACE_EVENT(ocfs2_cannibalize_resv_end,
+	TP_PROTO(unsigned int start, unsigned int end, unsigned int len,
+		 unsigned int last_start, unsigned int last_len),
+	TP_ARGS(start, end, len, last_start, last_len),
+	TP_STRUCT__entry(
+		__field(unsigned int, start)
+		__field(unsigned int, end)
+		__field(unsigned int, len)
+		__field(unsigned int, last_start)
+		__field(unsigned int, last_len)
+	),
+	TP_fast_assign(
+		__entry->start = start;
+		__entry->end = end;
+		__entry->len = len;
+		__entry->last_start = last_start;
+		__entry->last_len = last_len;
+	),
+	TP_printk("%u %u %u %u %u", __entry->start, __entry->end,
+		  __entry->len, __entry->last_start, __entry->last_len)
+);
+
+DEFINE_OCFS2_UINT_UINT_EVENT(ocfs2_resmap_resv_bits);
+
+TRACE_EVENT(ocfs2_resmap_claimed_bits_begin,
+	TP_PROTO(unsigned int cstart, unsigned int cend, unsigned int clen,
+		 unsigned int r_start, unsigned int r_end, unsigned int r_len,
+		 unsigned int last_start, unsigned int last_len),
+	TP_ARGS(cstart, cend, clen, r_start, r_end,
+		r_len, last_start, last_len),
+	TP_STRUCT__entry(
+		__field(unsigned int, cstart)
+		__field(unsigned int, cend)
+		__field(unsigned int, clen)
+		__field(unsigned int, r_start)
+		__field(unsigned int, r_end)
+		__field(unsigned int, r_len)
+		__field(unsigned int, last_start)
+		__field(unsigned int, last_len)
+	),
+	TP_fast_assign(
+		__entry->cstart = cstart;
+		__entry->cend = cend;
+		__entry->clen = clen;
+		__entry->r_start = r_start;
+		__entry->r_end = r_end;
+		__entry->r_len = r_len;
+		__entry->last_start = last_start;
+		__entry->last_len = last_len;
+	),
+	TP_printk("%u %u %u %u %u %u %u %u",
+		  __entry->cstart, __entry->cend, __entry->clen,
+		  __entry->r_start, __entry->r_end, __entry->r_len,
+		  __entry->last_start, __entry->last_len)
+);
+
+TRACE_EVENT(ocfs2_resmap_claimed_bits_end,
+	TP_PROTO(unsigned int start, unsigned int end, unsigned int len,
+		 unsigned int last_start, unsigned int last_len),
+	TP_ARGS(start, end, len, last_start, last_len),
+	TP_STRUCT__entry(
+		__field(unsigned int, start)
+		__field(unsigned int, end)
+		__field(unsigned int, len)
+		__field(unsigned int, last_start)
+		__field(unsigned int, last_len)
+	),
+	TP_fast_assign(
+		__entry->start = start;
+		__entry->end = end;
+		__entry->len = len;
+		__entry->last_start = last_start;
+		__entry->last_len = last_len;
+	),
+	TP_printk("%u %u %u %u %u", __entry->start, __entry->end,
+		  __entry->len, __entry->last_start, __entry->last_len)
+);
+
+/* End of trace events for fs/ocfs2/reservations.c. */
+
+/* Trace events for fs/ocfs2/quota_local.c. */
+
+DEFINE_OCFS2_ULL_UINT_EVENT(ocfs2_recover_local_quota_file);
+
+DEFINE_OCFS2_INT_EVENT(ocfs2_finish_quota_recovery);
+
+DEFINE_OCFS2_ULL_ULL_UINT_EVENT(olq_set_dquot);
+
+/* End of trace events for fs/ocfs2/quota_local.c. */
+
+/* Trace events for fs/ocfs2/quota_global.c. */
+
+DEFINE_OCFS2_ULL_EVENT(ocfs2_validate_quota_block);
+
+TRACE_EVENT(ocfs2_sync_dquot,
+	TP_PROTO(unsigned int dq_id, long long dqb_curspace,
+		 long long spacechange, long long curinodes,
+		 long long inodechange),
+	TP_ARGS(dq_id, dqb_curspace, spacechange, curinodes, inodechange),
+	TP_STRUCT__entry(
+		__field(unsigned int, dq_id)
+		__field(long long, dqb_curspace)
+		__field(long long, spacechange)
+		__field(long long, curinodes)
+		__field(long long, inodechange)
+	),
+	TP_fast_assign(
+		__entry->dq_id = dq_id;
+		__entry->dqb_curspace = dqb_curspace;
+		__entry->spacechange = spacechange;
+		__entry->curinodes = curinodes;
+		__entry->inodechange = inodechange;
+	),
+	TP_printk("%u %lld %lld %lld %lld", __entry->dq_id,
+		  __entry->dqb_curspace, __entry->spacechange,
+		  __entry->curinodes, __entry->inodechange)
+);
+
+TRACE_EVENT(ocfs2_sync_dquot_helper,
+	TP_PROTO(unsigned int dq_id, unsigned int dq_type, unsigned long type,
+		 const char *s_id),
+	TP_ARGS(dq_id, dq_type, type, s_id),
+
+	TP_STRUCT__entry(
+		__field(unsigned int, dq_id)
+		__field(unsigned int, dq_type)
+		__field(unsigned long, type)
+		__string(s_id, s_id)
+	),
+	TP_fast_assign(
+		__entry->dq_id = dq_id;
+		__entry->dq_type = dq_type;
+		__entry->type = type;
+		__assign_str(s_id, s_id);
+	),
+	TP_printk("%u %u %lu %s", __entry->dq_id, __entry->dq_type,
+		  __entry->type, __get_str(s_id))
+);
+
+DEFINE_OCFS2_UINT_INT_EVENT(ocfs2_write_dquot);
+
+DEFINE_OCFS2_UINT_INT_EVENT(ocfs2_release_dquot);
+
+DEFINE_OCFS2_UINT_INT_EVENT(ocfs2_acquire_dquot);
+
+DEFINE_OCFS2_UINT_INT_EVENT(ocfs2_mark_dquot_dirty);
+
+/* End of trace events for fs/ocfs2/quota_global.c. */
+
+/* Trace events for fs/ocfs2/dir.c. */
+DEFINE_OCFS2_INT_EVENT(ocfs2_search_dirblock);
+
+DEFINE_OCFS2_ULL_EVENT(ocfs2_validate_dir_block);
+
+DEFINE_OCFS2_POINTER_EVENT(ocfs2_find_entry_el);
+
+TRACE_EVENT(ocfs2_dx_dir_search,
+	TP_PROTO(unsigned long long ino, int namelen, const char *name,
+		 unsigned int major_hash, unsigned int minor_hash,
+		 unsigned long long blkno),
+	TP_ARGS(ino, namelen, name, major_hash, minor_hash, blkno),
+	TP_STRUCT__entry(
+		__field(unsigned long long, ino)
+		__field(int, namelen)
+		__string(name, name)
+		__field(unsigned int, major_hash)
+		__field(unsigned int,minor_hash)
+		__field(unsigned long long, blkno)
+	),
+	TP_fast_assign(
+		__entry->ino = ino;
+		__entry->namelen = namelen;
+		__assign_str(name, name);
+		__entry->major_hash = major_hash;
+		__entry->minor_hash = minor_hash;
+		__entry->blkno = blkno;
+	),
+	TP_printk("%llu %.*s %u %u %llu", __entry->ino,
+		   __entry->namelen, __get_str(name),
+		  __entry->major_hash, __entry->minor_hash, __entry->blkno)
+);
+
+DEFINE_OCFS2_UINT_UINT_EVENT(ocfs2_dx_dir_search_leaf_info);
+
+DEFINE_OCFS2_ULL_INT_EVENT(ocfs2_delete_entry_dx);
+
+DEFINE_OCFS2_ULL_EVENT(ocfs2_readdir);
+
+TRACE_EVENT(ocfs2_find_files_on_disk,
+	TP_PROTO(int namelen, const char *name, void *blkno,
+		 unsigned long long dir),
+	TP_ARGS(namelen, name, blkno, dir),
+	TP_STRUCT__entry(
+		__field(int, namelen)
+		__string(name, name)
+		__field(void *, blkno)
+		__field(unsigned long long, dir)
+	),
+	TP_fast_assign(
+		__entry->namelen = namelen;
+		__assign_str(name, name);
+		__entry->blkno = blkno;
+		__entry->dir = dir;
+	),
+	TP_printk("%.*s %p %llu", __entry->namelen, __get_str(name),
+		  __entry->blkno, __entry->dir)
+);
+
+TRACE_EVENT(ocfs2_check_dir_for_entry,
+	TP_PROTO(unsigned long long dir, int namelen, const char *name),
+	TP_ARGS(dir, namelen, name),
+	TP_STRUCT__entry(
+		__field(unsigned long long, dir)
+		__field(int, namelen)
+		__string(name, name)
+	),
+	TP_fast_assign(
+		__entry->dir = dir;
+		__entry->namelen = namelen;
+		__assign_str(name, name);
+	),
+	TP_printk("%llu %.*s", __entry->dir,
+		  __entry->namelen, __get_str(name))
+);
+
+DEFINE_OCFS2_ULL_ULL_EVENT(ocfs2_dx_dir_attach_index);
+
+DEFINE_OCFS2_ULL_ULL_UINT_EVENT(ocfs2_dx_dir_format_cluster);
+
+TRACE_EVENT(ocfs2_dx_dir_index_root_block,
+	TP_PROTO(unsigned long long dir,
+		 unsigned int major_hash, unsigned int minor_hash,
+		 int namelen, const char *name, unsigned int num_used),
+	TP_ARGS(dir, major_hash, minor_hash, namelen, name, num_used),
+	TP_STRUCT__entry(
+		__field(unsigned long long, dir)
+		__field(unsigned int, major_hash)
+		__field(unsigned int, minor_hash)
+		__field(int, namelen)
+		__string(name, name)
+		__field(unsigned int, num_used)
+	),
+	TP_fast_assign(
+		__entry->dir = dir;
+		__entry->major_hash = major_hash;
+		__entry->minor_hash = minor_hash;
+		__entry->namelen = namelen;
+		__assign_str(name, name);
+		__entry->num_used = num_used;
+	),
+	TP_printk("%llu %x %x %.*s %u", __entry->dir,
+		  __entry->major_hash, __entry->minor_hash,
+		   __entry->namelen, __get_str(name), __entry->num_used)
+);
+
+DEFINE_OCFS2_ULL_ULL_EVENT(ocfs2_extend_dir);
+
+DEFINE_OCFS2_ULL_ULL_UINT_EVENT(ocfs2_dx_dir_rebalance);
+
+DEFINE_OCFS2_UINT_UINT_UINT_EVENT(ocfs2_dx_dir_rebalance_split);
+
+DEFINE_OCFS2_ULL_INT_EVENT(ocfs2_prepare_dir_for_insert);
+
+/* End of trace events for fs/ocfs2/dir.c. */
+
+/* Trace events for fs/ocfs2/namei.c. */
+
+DECLARE_EVENT_CLASS(ocfs2__dentry_ops,
+	TP_PROTO(void *dir, void *dentry, int name_len, const char *name,
+		 unsigned long long dir_blkno, unsigned long long extra),
+	TP_ARGS(dir, dentry, name_len, name, dir_blkno, extra),
+	TP_STRUCT__entry(
+		__field(void *, dir)
+		__field(void *, dentry)
+		__field(int, name_len)
+		__string(name, name)
+		__field(unsigned long long, dir_blkno)
+		__field(unsigned long long, extra)
+	),
+	TP_fast_assign(
+		__entry->dir = dir;
+		__entry->dentry = dentry;
+		__entry->name_len = name_len;
+		__assign_str(name, name);
+		__entry->dir_blkno = dir_blkno;
+		__entry->extra = extra;
+	),
+	TP_printk("%p %p %.*s %llu %llu", __entry->dir, __entry->dentry,
+		  __entry->name_len, __get_str(name),
+		  __entry->dir_blkno, __entry->extra)
+);
+
+#define DEFINE_OCFS2_DENTRY_OPS(name)					\
+DEFINE_EVENT(ocfs2__dentry_ops, name,					\
+TP_PROTO(void *dir, void *dentry, int name_len, const char *name,	\
+	 unsigned long long dir_blkno, unsigned long long extra),	\
+	TP_ARGS(dir, dentry, name_len, name, dir_blkno, extra))
+
+DEFINE_OCFS2_DENTRY_OPS(ocfs2_lookup);
+
+DEFINE_OCFS2_DENTRY_OPS(ocfs2_mkdir);
+
+DEFINE_OCFS2_DENTRY_OPS(ocfs2_create);
+
+DEFINE_OCFS2_DENTRY_OPS(ocfs2_unlink);
+
+DEFINE_OCFS2_DENTRY_OPS(ocfs2_symlink_create);
+
+DEFINE_OCFS2_DENTRY_OPS(ocfs2_mv_orphaned_inode_to_new);
+
+DEFINE_OCFS2_POINTER_EVENT(ocfs2_lookup_ret);
+
+TRACE_EVENT(ocfs2_mknod,
+	TP_PROTO(void *dir, void *dentry, int name_len, const char *name,
+		 unsigned long long dir_blkno, unsigned long dev, int mode),
+	TP_ARGS(dir, dentry, name_len, name, dir_blkno, dev, mode),
+	TP_STRUCT__entry(
+		__field(void *, dir)
+		__field(void *, dentry)
+		__field(int, name_len)
+		__string(name, name)
+		__field(unsigned long long, dir_blkno)
+		__field(unsigned long, dev)
+		__field(int, mode)
+	),
+	TP_fast_assign(
+		__entry->dir = dir;
+		__entry->dentry = dentry;
+		__entry->name_len = name_len;
+		__assign_str(name, name);
+		__entry->dir_blkno = dir_blkno;
+		__entry->dev = dev;
+		__entry->mode = mode;
+	),
+	TP_printk("%p %p %.*s %llu %lu %d", __entry->dir, __entry->dentry,
+		  __entry->name_len, __get_str(name),
+		  __entry->dir_blkno, __entry->dev, __entry->mode)
+);
+
+TRACE_EVENT(ocfs2_link,
+	TP_PROTO(unsigned long long ino, int old_len, const char *old_name,
+		 int name_len, const char *name),
+	TP_ARGS(ino, old_len, old_name, name_len, name),
+	TP_STRUCT__entry(
+		__field(unsigned long long, ino)
+		__field(int, old_len)
+		__string(old_name, old_name)
+		__field(int, name_len)
+		__string(name, name)
+	),
+	TP_fast_assign(
+		__entry->ino = ino;
+		__entry->old_len = old_len;
+		__assign_str(old_name, old_name);
+		__entry->name_len = name_len;
+		__assign_str(name, name);
+	),
+	TP_printk("%llu %.*s %.*s", __entry->ino,
+		  __entry->old_len, __get_str(old_name),
+		  __entry->name_len, __get_str(name))
+);
+
+DEFINE_OCFS2_ULL_ULL_UINT_EVENT(ocfs2_unlink_noent);
+
+DEFINE_OCFS2_ULL_ULL_EVENT(ocfs2_double_lock);
+
+DEFINE_OCFS2_ULL_ULL_EVENT(ocfs2_double_lock_end);
+
+TRACE_EVENT(ocfs2_rename,
+	TP_PROTO(void *old_dir, void *old_dentry,
+		 void *new_dir, void *new_dentry,
+		 int old_len, const char *old_name,
+		 int new_len, const char *new_name),
+	TP_ARGS(old_dir, old_dentry, new_dir, new_dentry,
+		old_len, old_name, new_len, new_name),
+	TP_STRUCT__entry(
+		__field(void *, old_dir)
+		__field(void *, old_dentry)
+		__field(void *, new_dir)
+		__field(void *, new_dentry)
+		__field(int, old_len)
+		__string(old_name, old_name)
+		__field(int, new_len)
+		__string(new_name, new_name)
+	),
+	TP_fast_assign(
+		__entry->old_dir = old_dir;
+		__entry->old_dentry = old_dentry;
+		__entry->new_dir = new_dir;
+		__entry->new_dentry = new_dentry;
+		__entry->old_len = old_len;
+		__assign_str(old_name, old_name);
+		__entry->new_len = new_len;
+		__assign_str(new_name, new_name);
+	),
+	TP_printk("%p %p %p %p %.*s %.*s",
+		  __entry->old_dir, __entry->old_dentry,
+		  __entry->new_dir, __entry->new_dentry,
+		  __entry->old_len, __get_str(old_name),
+		  __entry->new_len, __get_str(new_name))
+);
+
+TRACE_EVENT(ocfs2_rename_target_exists,
+	TP_PROTO(int new_len, const char *new_name),
+	TP_ARGS(new_len, new_name),
+	TP_STRUCT__entry(
+		__field(int, new_len)
+		__string(new_name, new_name)
+	),
+	TP_fast_assign(
+		__entry->new_len = new_len;
+		__assign_str(new_name, new_name);
+	),
+	TP_printk("%.*s", __entry->new_len, __get_str(new_name))
+);
+
+DEFINE_OCFS2_ULL_ULL_UINT_EVENT(ocfs2_rename_disagree);
+
+TRACE_EVENT(ocfs2_rename_over_existing,
+	TP_PROTO(unsigned long long new_blkno, void *new_bh,
+		 unsigned long long newdi_blkno),
+	TP_ARGS(new_blkno, new_bh, newdi_blkno),
+	TP_STRUCT__entry(
+		__field(unsigned long long, new_blkno)
+		__field(void *, new_bh)
+		__field(unsigned long long, newdi_blkno)
+	),
+	TP_fast_assign(
+		__entry->new_blkno = new_blkno;
+		__entry->new_bh = new_bh;
+		__entry->newdi_blkno = newdi_blkno;
+	),
+	TP_printk("%llu %p %llu", __entry->new_blkno, __entry->new_bh,
+		  __entry->newdi_blkno)
+);
+
+DEFINE_OCFS2_ULL_ULL_UINT_EVENT(ocfs2_create_symlink_data);
+
+TRACE_EVENT(ocfs2_symlink_begin,
+	TP_PROTO(void *dir, void *dentry, const char *symname,
+		 int len, const char *name),
+	TP_ARGS(dir, dentry, symname, len, name),
+	TP_STRUCT__entry(
+		__field(void *, dir)
+		__field(void *, dentry)
+		__field(const char *, symname)
+		__field(int, len)
+		__string(name, name)
+	),
+	TP_fast_assign(
+		__entry->dir = dir;
+		__entry->dentry = dentry;
+		__entry->symname = symname;
+		__entry->len = len;
+		__assign_str(name, name);
+	),
+	TP_printk("%p %p %s %.*s", __entry->dir, __entry->dentry,
+		  __entry->symname, __entry->len, __get_str(name))
+);
+
+TRACE_EVENT(ocfs2_blkno_stringify,
+	TP_PROTO(unsigned long long blkno, const char *name, int namelen),
+	TP_ARGS(blkno, name, namelen),
+	TP_STRUCT__entry(
+		__field(unsigned long long, blkno)
+		__string(name, name)
+		__field(int, namelen)
+	),
+	TP_fast_assign(
+		__entry->blkno = blkno;
+		__assign_str(name, name);
+		__entry->namelen = namelen;
+	),
+	TP_printk("%llu %s %d", __entry->blkno, __get_str(name),
+		  __entry->namelen)
+);
+
+DEFINE_OCFS2_ULL_EVENT(ocfs2_orphan_add_begin);
+
+DEFINE_OCFS2_ULL_UINT_EVENT(ocfs2_orphan_add_end);
+
+TRACE_EVENT(ocfs2_orphan_del,
+	TP_PROTO(unsigned long long dir, const char *name, int namelen),
+	TP_ARGS(dir, name, namelen),
+	TP_STRUCT__entry(
+		__field(unsigned long long, dir)
+		__string(name, name)
+		__field(int, namelen)
+	),
+	TP_fast_assign(
+		__entry->dir = dir;
+		__assign_str(name, name);
+		__entry->namelen = namelen;
+	),
+	TP_printk("%llu %s %d", __entry->dir, __get_str(name),
+		  __entry->namelen)
+);
+
+/* End of trace events for fs/ocfs2/namei.c. */
+
+/* Trace events for fs/ocfs2/dcache.c. */
+
+TRACE_EVENT(ocfs2_dentry_revalidate,
+	TP_PROTO(void *dentry, int len, const char *name),
+	TP_ARGS(dentry, len, name),
+	TP_STRUCT__entry(
+		__field(void *, dentry)
+		__field(int, len)
+		__string(name, name)
+	),
+	TP_fast_assign(
+		__entry->dentry = dentry;
+		__entry->len = len;
+		__assign_str(name, name);
+	),
+	TP_printk("%p %.*s", __entry->dentry, __entry->len, __get_str(name))
+);
+
+TRACE_EVENT(ocfs2_dentry_revalidate_negative,
+	TP_PROTO(int len, const char *name, unsigned long pgen,
+		 unsigned long gen),
+	TP_ARGS(len, name, pgen, gen),
+	TP_STRUCT__entry(
+		__field(int, len)
+		__string(name, name)
+		__field(unsigned long, pgen)
+		__field(unsigned long, gen)
+	),
+	TP_fast_assign(
+		__entry->len = len;
+		__assign_str(name, name);
+		__entry->pgen = pgen;
+		__entry->gen = gen;
+	),
+	TP_printk("%.*s %lu %lu", __entry->len, __get_str(name),
+		  __entry->pgen, __entry->gen)
+);
+
+DEFINE_OCFS2_ULL_EVENT(ocfs2_dentry_revalidate_delete);
+
+DEFINE_OCFS2_ULL_INT_EVENT(ocfs2_dentry_revalidate_orphaned);
+
+DEFINE_OCFS2_ULL_EVENT(ocfs2_dentry_revalidate_nofsdata);
+
+DEFINE_OCFS2_INT_EVENT(ocfs2_dentry_revalidate_ret);
+
+TRACE_EVENT(ocfs2_find_local_alias,
+	TP_PROTO(int len, const char *name),
+	TP_ARGS(len, name),
+	TP_STRUCT__entry(
+		__field(int, len)
+		__string(name, name)
+	),
+	TP_fast_assign(
+		__entry->len = len;
+		__assign_str(name, name);
+	),
+	TP_printk("%.*s", __entry->len, __get_str(name))
+);
+
+TRACE_EVENT(ocfs2_dentry_attach_lock,
+	TP_PROTO(int len, const char *name,
+		 unsigned long long parent, void *fsdata),
+	TP_ARGS(len, name, parent, fsdata),
+	TP_STRUCT__entry(
+		__field(int, len)
+		__string(name, name)
+		__field(unsigned long long, parent)
+		__field(void *, fsdata)
+	),
+	TP_fast_assign(
+		__entry->len = len;
+		__assign_str(name, name);
+		__entry->parent = parent;
+		__entry->fsdata = fsdata;
+	),
+	TP_printk("%.*s %llu %p", __entry->len, __get_str(name),
+		  __entry->parent, __entry->fsdata)
+);
+
+TRACE_EVENT(ocfs2_dentry_attach_lock_found,
+	TP_PROTO(const char *name, unsigned long long parent,
+		 unsigned long long ino),
+	TP_ARGS(name, parent, ino),
+	TP_STRUCT__entry(
+		__string(name, name)
+		__field(unsigned long long, parent)
+		__field(unsigned long long, ino)
+	),
+	TP_fast_assign(
+		__assign_str(name, name);
+		__entry->parent = parent;
+		__entry->ino = ino;
+	),
+	TP_printk("%s %llu %llu", __get_str(name), __entry->parent, __entry->ino)
+);
+/* End of trace events for fs/ocfs2/dcache.c. */
+
+/* Trace events for fs/ocfs2/export.c. */
+
+TRACE_EVENT(ocfs2_get_dentry_begin,
+	TP_PROTO(void *sb, void *handle, unsigned long long blkno),
+	TP_ARGS(sb, handle, blkno),
+	TP_STRUCT__entry(
+		__field(void *, sb)
+		__field(void *, handle)
+		__field(unsigned long long, blkno)
+	),
+	TP_fast_assign(
+		__entry->sb = sb;
+		__entry->handle = handle;
+		__entry->blkno = blkno;
+	),
+	TP_printk("%p %p %llu", __entry->sb, __entry->handle, __entry->blkno)
+);
+
+DEFINE_OCFS2_INT_INT_EVENT(ocfs2_get_dentry_test_bit);
+
+DEFINE_OCFS2_ULL_UINT_EVENT(ocfs2_get_dentry_stale);
+
+DEFINE_OCFS2_ULL_UINT_UINT_EVENT(ocfs2_get_dentry_generation);
+
+DEFINE_OCFS2_POINTER_EVENT(ocfs2_get_dentry_end);
+
+TRACE_EVENT(ocfs2_get_parent,
+	TP_PROTO(void *child, int len, const char *name,
+		 unsigned long long ino),
+	TP_ARGS(child, len, name, ino),
+	TP_STRUCT__entry(
+		__field(void *,	child)
+		__field(int, len)
+		__string(name, name)
+		__field(unsigned long long, ino)
+	),
+	TP_fast_assign(
+		__entry->child = child;
+		__entry->len = len;
+		__assign_str(name, name);
+		__entry->ino = ino;
+	),
+	TP_printk("%p %.*s %llu", __entry->child, __entry->len,
+		  __get_str(name), __entry->ino)
+);
+
+DEFINE_OCFS2_POINTER_EVENT(ocfs2_get_parent_end);
+
+TRACE_EVENT(ocfs2_encode_fh_begin,
+	TP_PROTO(void *dentry, int name_len, const char *name,
+		 void *fh, int len, int connectable),
+	TP_ARGS(dentry, name_len, name, fh, len, connectable),
+	TP_STRUCT__entry(
+		__field(void *, dentry)
+		__field(int, name_len)
+		__string(name, name)
+		__field(void *, fh)
+		__field(int, len)
+		__field(int, connectable)
+	),
+	TP_fast_assign(
+		__entry->dentry = dentry;
+		__entry->name_len = name_len;
+		__assign_str(name, name);
+		__entry->fh = fh;
+		__entry->len = len;
+		__entry->connectable = connectable;
+	),
+	TP_printk("%p %.*s %p %d %d", __entry->dentry, __entry->name_len,
+		  __get_str(name), __entry->fh, __entry->len,
+		  __entry->connectable)
+);
+
+DEFINE_OCFS2_ULL_UINT_EVENT(ocfs2_encode_fh_self);
+
+DEFINE_OCFS2_ULL_UINT_EVENT(ocfs2_encode_fh_parent);
+
+DEFINE_OCFS2_INT_EVENT(ocfs2_encode_fh_type);
+
+/* End of trace events for fs/ocfs2/export.c. */
+
+/* Trace events for fs/ocfs2/journal.c. */
+
+DEFINE_OCFS2_UINT_EVENT(ocfs2_commit_cache_begin);
+
+DEFINE_OCFS2_ULL_UINT_EVENT(ocfs2_commit_cache_end);
+
+DEFINE_OCFS2_INT_INT_EVENT(ocfs2_extend_trans);
+
+DEFINE_OCFS2_INT_EVENT(ocfs2_extend_trans_restart);
+
+DEFINE_OCFS2_ULL_ULL_UINT_UINT_EVENT(ocfs2_journal_access);
+
+DEFINE_OCFS2_ULL_EVENT(ocfs2_journal_dirty);
+
+DEFINE_OCFS2_ULL_ULL_UINT_EVENT(ocfs2_journal_init);
+
+DEFINE_OCFS2_UINT_EVENT(ocfs2_journal_init_maxlen);
+
+DEFINE_OCFS2_INT_EVENT(ocfs2_journal_shutdown);
+
+DEFINE_OCFS2_POINTER_EVENT(ocfs2_journal_shutdown_wait);
+
+DEFINE_OCFS2_ULL_EVENT(ocfs2_complete_recovery);
+
+DEFINE_OCFS2_INT_EVENT(ocfs2_complete_recovery_end);
+
+TRACE_EVENT(ocfs2_complete_recovery_slot,
+	TP_PROTO(int slot, unsigned long long la_ino,
+		 unsigned long long tl_ino, void *qrec),
+	TP_ARGS(slot, la_ino, tl_ino, qrec),
+	TP_STRUCT__entry(
+		__field(int, slot)
+		__field(unsigned long long, la_ino)
+		__field(unsigned long long, tl_ino)
+		__field(void *, qrec)
+	),
+	TP_fast_assign(
+		__entry->slot = slot;
+		__entry->la_ino = la_ino;
+		__entry->tl_ino = tl_ino;
+		__entry->qrec = qrec;
+	),
+	TP_printk("%d %llu %llu %p", __entry->slot, __entry->la_ino,
+		  __entry->tl_ino, __entry->qrec)
+);
+
+DEFINE_OCFS2_INT_INT_EVENT(ocfs2_recovery_thread_node);
+
+DEFINE_OCFS2_INT_EVENT(ocfs2_recovery_thread_end);
+
+TRACE_EVENT(ocfs2_recovery_thread,
+	TP_PROTO(int node_num, int osb_node_num, int disable,
+		 void *recovery_thread, int map_set),
+	TP_ARGS(node_num, osb_node_num, disable, recovery_thread, map_set),
+	TP_STRUCT__entry(
+		__field(int, node_num)
+		__field(int, osb_node_num)
+		__field(int,disable)
+		__field(void *, recovery_thread)
+		__field(int,map_set)
+	),
+	TP_fast_assign(
+		__entry->node_num = node_num;
+		__entry->osb_node_num = osb_node_num;
+		__entry->disable = disable;
+		__entry->recovery_thread = recovery_thread;
+		__entry->map_set = map_set;
+	),
+	TP_printk("%d %d %d %p %d", __entry->node_num,
+		   __entry->osb_node_num, __entry->disable,
+		   __entry->recovery_thread, __entry->map_set)
+);
+
+DEFINE_OCFS2_UINT_UINT_UINT_EVENT(ocfs2_replay_journal_recovered);
+
+DEFINE_OCFS2_INT_EVENT(ocfs2_replay_journal_lock_err);
+
+DEFINE_OCFS2_INT_EVENT(ocfs2_replay_journal_skip);
+
+DEFINE_OCFS2_UINT_UINT_UINT_EVENT(ocfs2_recover_node);
+
+DEFINE_OCFS2_UINT_UINT_EVENT(ocfs2_recover_node_skip);
+
+DEFINE_OCFS2_UINT_UINT_EVENT(ocfs2_mark_dead_nodes);
+
+DEFINE_OCFS2_UINT_UINT_UINT_EVENT(ocfs2_queue_orphan_scan_begin);
+
+DEFINE_OCFS2_UINT_UINT_UINT_EVENT(ocfs2_queue_orphan_scan_end);
+
+DEFINE_OCFS2_ULL_EVENT(ocfs2_orphan_filldir);
+
+DEFINE_OCFS2_INT_EVENT(ocfs2_recover_orphans);
+
+DEFINE_OCFS2_ULL_EVENT(ocfs2_recover_orphans_iput);
+
+DEFINE_OCFS2_INT_EVENT(ocfs2_wait_on_mount);
+
+/* End of trace events for fs/ocfs2/journal.c. */
+
+/* Trace events for fs/ocfs2/buffer_head_io.c. */
+
+DEFINE_OCFS2_ULL_UINT_EVENT(ocfs2_read_blocks_sync);
+
+DEFINE_OCFS2_ULL_EVENT(ocfs2_read_blocks_sync_jbd);
+
+DEFINE_OCFS2_ULL_ULL_EVENT(ocfs2_read_blocks_from_disk);
+
+DEFINE_OCFS2_ULL_INT_INT_INT_EVENT(ocfs2_read_blocks_bh);
+
+DEFINE_OCFS2_ULL_INT_INT_INT_EVENT(ocfs2_read_blocks_end);
+
+TRACE_EVENT(ocfs2_write_block,
+	TP_PROTO(unsigned long long block, void *ci),
+	TP_ARGS(block, ci),
+	TP_STRUCT__entry(
+		__field(unsigned long long, block)
+		__field(void *, ci)
+	),
+	TP_fast_assign(
+		__entry->block = block;
+		__entry->ci = ci;
+	),
+	TP_printk("%llu %p", __entry->block, __entry->ci)
+);
+
+TRACE_EVENT(ocfs2_read_blocks_begin,
+	TP_PROTO(void *ci, unsigned long long block,
+		 unsigned int nr, int flags),
+	TP_ARGS(ci, block, nr, flags),
+	TP_STRUCT__entry(
+		__field(void *, ci)
+		__field(unsigned long long, block)
+		__field(unsigned int, nr)
+		__field(int, flags)
+	),
+	TP_fast_assign(
+		__entry->ci = ci;
+		__entry->block = block;
+		__entry->nr = nr;
+		__entry->flags = flags;
+	),
+	TP_printk("%p %llu %u %d", __entry->ci, __entry->block,
+		  __entry->nr, __entry->flags)
+);
+
+/* End of trace events for fs/ocfs2/buffer_head_io.c. */
+
+/* Trace events for fs/ocfs2/uptodate.c. */
+
+DEFINE_OCFS2_ULL_EVENT(ocfs2_purge_copied_metadata_tree);
+
+DEFINE_OCFS2_ULL_UINT_UINT_EVENT(ocfs2_metadata_cache_purge);
+
+DEFINE_OCFS2_ULL_ULL_UINT_EVENT(ocfs2_buffer_cached_begin);
+
+TRACE_EVENT(ocfs2_buffer_cached_end,
+	TP_PROTO(int index, void *item),
+	TP_ARGS(index, item),
+	TP_STRUCT__entry(
+		__field(int, index)
+		__field(void *, item)
+	),
+	TP_fast_assign(
+		__entry->index = index;
+		__entry->item = item;
+	),
+	TP_printk("%d %p", __entry->index, __entry->item)
+);
+
+DEFINE_OCFS2_ULL_ULL_UINT_EVENT(ocfs2_append_cache_array);
+
+DEFINE_OCFS2_ULL_ULL_UINT_EVENT(ocfs2_insert_cache_tree);
+
+DEFINE_OCFS2_ULL_UINT_UINT_EVENT(ocfs2_expand_cache);
+
+DEFINE_OCFS2_ULL_UINT_UINT_EVENT(ocfs2_set_buffer_uptodate);
+
+DEFINE_OCFS2_ULL_ULL_EVENT(ocfs2_set_buffer_uptodate_begin);
+
+DEFINE_OCFS2_ULL_UINT_UINT_EVENT(ocfs2_remove_metadata_array);
+
+DEFINE_OCFS2_ULL_ULL_EVENT(ocfs2_remove_metadata_tree);
+
+DEFINE_OCFS2_ULL_ULL_UINT_UINT_EVENT(ocfs2_remove_block_from_cache);
+
+/* End of trace events for fs/ocfs2/uptodate.c. */
+#endif /* _TRACE_OCFS2_H */
+
+/* This part must be outside protection */
+#undef TRACE_INCLUDE_PATH
+#define TRACE_INCLUDE_PATH .
+#define TRACE_INCLUDE_FILE ocfs2_trace
+#include <trace/define_trace.h>
diff --git a/fs/ocfs2/quota_global.c b/fs/ocfs2/quota_global.c
index a73f64166481..92fcd575775a 100644
--- a/fs/ocfs2/quota_global.c
+++ b/fs/ocfs2/quota_global.c
@@ -11,7 +11,6 @@
 #include <linux/writeback.h>
 #include <linux/workqueue.h>
 
-#define MLOG_MASK_PREFIX ML_QUOTA
 #include <cluster/masklog.h>
 
 #include "ocfs2_fs.h"
@@ -27,6 +26,7 @@
 #include "super.h"
 #include "buffer_head_io.h"
 #include "quota.h"
+#include "ocfs2_trace.h"
 
 /*
  * Locking of quotas with OCFS2 is rather complex. Here are rules that
@@ -130,8 +130,7 @@ int ocfs2_validate_quota_block(struct super_block *sb, struct buffer_head *bh)
 	struct ocfs2_disk_dqtrailer *dqt =
 		ocfs2_block_dqtrailer(sb->s_blocksize, bh->b_data);
 
-	mlog(0, "Validating quota block %llu\n",
-	     (unsigned long long)bh->b_blocknr);
+	trace_ocfs2_validate_quota_block((unsigned long long)bh->b_blocknr);
 
 	BUG_ON(!buffer_uptodate(bh));
 
@@ -341,8 +340,6 @@ int ocfs2_global_read_info(struct super_block *sb, int type)
 	u64 pcount;
 	int status;
 
-	mlog_entry_void();
-
 	/* Read global header */
 	gqinode = ocfs2_get_system_file_inode(OCFS2_SB(sb), ino[type],
 			OCFS2_INVALID_SLOT);
@@ -402,7 +399,8 @@ int ocfs2_global_read_info(struct super_block *sb, int type)
 			      msecs_to_jiffies(oinfo->dqi_syncms));
 
 out_err:
-	mlog_exit(status);
+	if (status)
+		mlog_errno(status);
 	return status;
 out_unlock:
 	ocfs2_unlock_global_qf(oinfo, 0);
@@ -508,9 +506,10 @@ int __ocfs2_sync_dquot(struct dquot *dquot, int freeing)
 	olditime = dquot->dq_dqb.dqb_itime;
 	oldbtime = dquot->dq_dqb.dqb_btime;
 	ocfs2_global_disk2memdqb(dquot, &dqblk);
-	mlog(0, "Syncing global dquot %u space %lld+%lld, inodes %lld+%lld\n",
-	     dquot->dq_id, dquot->dq_dqb.dqb_curspace, (long long)spacechange,
-	     dquot->dq_dqb.dqb_curinodes, (long long)inodechange);
+	trace_ocfs2_sync_dquot(dquot->dq_id, dquot->dq_dqb.dqb_curspace,
+			       (long long)spacechange,
+			       dquot->dq_dqb.dqb_curinodes,
+			       (long long)inodechange);
 	if (!test_bit(DQ_LASTSET_B + QIF_SPACE_B, &dquot->dq_flags))
 		dquot->dq_dqb.dqb_curspace += spacechange;
 	if (!test_bit(DQ_LASTSET_B + QIF_INODES_B, &dquot->dq_flags))
@@ -557,7 +556,7 @@ int __ocfs2_sync_dquot(struct dquot *dquot, int freeing)
 	spin_unlock(&dq_data_lock);
 	err = ocfs2_qinfo_lock(info, freeing);
 	if (err < 0) {
-		mlog(ML_ERROR, "Failed to lock quota info, loosing quota write"
+		mlog(ML_ERROR, "Failed to lock quota info, losing quota write"
 			       " (type=%d, id=%u)\n", dquot->dq_type,
 			       (unsigned)dquot->dq_id);
 		goto out;
@@ -594,8 +593,8 @@ static int ocfs2_sync_dquot_helper(struct dquot *dquot, unsigned long type)
 	struct ocfs2_super *osb = OCFS2_SB(sb);
 	int status = 0;
 
-	mlog_entry("id=%u qtype=%u type=%lu device=%s\n", dquot->dq_id,
-		   dquot->dq_type, type, sb->s_id);
+	trace_ocfs2_sync_dquot_helper(dquot->dq_id, dquot->dq_type,
+				      type, sb->s_id);
 	if (type != dquot->dq_type)
 		goto out;
 	status = ocfs2_lock_global_qf(oinfo, 1);
@@ -621,7 +620,6 @@ static int ocfs2_sync_dquot_helper(struct dquot *dquot, unsigned long type)
 out_ilock:
 	ocfs2_unlock_global_qf(oinfo, 1);
 out:
-	mlog_exit(status);
 	return status;
 }
 
@@ -647,7 +645,7 @@ static int ocfs2_write_dquot(struct dquot *dquot)
 	struct ocfs2_super *osb = OCFS2_SB(dquot->dq_sb);
 	int status = 0;
 
-	mlog_entry("id=%u, type=%d", dquot->dq_id, dquot->dq_type);
+	trace_ocfs2_write_dquot(dquot->dq_id, dquot->dq_type);
 
 	handle = ocfs2_start_trans(osb, OCFS2_QWRITE_CREDITS);
 	if (IS_ERR(handle)) {
@@ -660,7 +658,6 @@ static int ocfs2_write_dquot(struct dquot *dquot)
 	mutex_unlock(&sb_dqopt(dquot->dq_sb)->dqio_mutex);
 	ocfs2_commit_trans(osb, handle);
 out:
-	mlog_exit(status);
 	return status;
 }
 
@@ -686,7 +683,7 @@ static int ocfs2_release_dquot(struct dquot *dquot)
 	struct ocfs2_super *osb = OCFS2_SB(dquot->dq_sb);
 	int status = 0;
 
-	mlog_entry("id=%u, type=%d", dquot->dq_id, dquot->dq_type);
+	trace_ocfs2_release_dquot(dquot->dq_id, dquot->dq_type);
 
 	mutex_lock(&dquot->dq_lock);
 	/* Check whether we are not racing with some other dqget() */
@@ -722,7 +719,8 @@ out_ilock:
 	ocfs2_unlock_global_qf(oinfo, 1);
 out:
 	mutex_unlock(&dquot->dq_lock);
-	mlog_exit(status);
+	if (status)
+		mlog_errno(status);
 	return status;
 }
 
@@ -743,7 +741,7 @@ static int ocfs2_acquire_dquot(struct dquot *dquot)
 	int need_alloc = ocfs2_global_qinit_alloc(sb, type);
 	handle_t *handle;
 
-	mlog_entry("id=%u, type=%d", dquot->dq_id, type);
+	trace_ocfs2_acquire_dquot(dquot->dq_id, type);
 	mutex_lock(&dquot->dq_lock);
 	/*
 	 * We need an exclusive lock, because we're going to update use count
@@ -809,7 +807,8 @@ out_dq:
 	set_bit(DQ_ACTIVE_B, &dquot->dq_flags);
 out:
 	mutex_unlock(&dquot->dq_lock);
-	mlog_exit(status);
+	if (status)
+		mlog_errno(status);
 	return status;
 }
 
@@ -829,7 +828,7 @@ static int ocfs2_mark_dquot_dirty(struct dquot *dquot)
 	handle_t *handle;
 	struct ocfs2_super *osb = OCFS2_SB(sb);
 
-	mlog_entry("id=%u, type=%d", dquot->dq_id, type);
+	trace_ocfs2_mark_dquot_dirty(dquot->dq_id, type);
 
 	/* In case user set some limits, sync dquot immediately to global
 	 * quota file so that information propagates quicker */
@@ -866,7 +865,8 @@ out_dlock:
 out_ilock:
 	ocfs2_unlock_global_qf(oinfo, 1);
 out:
-	mlog_exit(status);
+	if (status)
+		mlog_errno(status);
 	return status;
 }
 
@@ -877,8 +877,6 @@ static int ocfs2_write_info(struct super_block *sb, int type)
 	int status = 0;
 	struct ocfs2_mem_dqinfo *oinfo = sb_dqinfo(sb, type)->dqi_priv;
 
-	mlog_entry_void();
-
 	status = ocfs2_lock_global_qf(oinfo, 1);
 	if (status < 0)
 		goto out;
@@ -893,7 +891,8 @@ static int ocfs2_write_info(struct super_block *sb, int type)
 out_ilock:
 	ocfs2_unlock_global_qf(oinfo, 1);
 out:
-	mlog_exit(status);
+	if (status)
+		mlog_errno(status);
 	return status;
 }
 
diff --git a/fs/ocfs2/quota_local.c b/fs/ocfs2/quota_local.c
index dc78764ccc4c..dc8007fc9247 100644
--- a/fs/ocfs2/quota_local.c
+++ b/fs/ocfs2/quota_local.c
@@ -8,7 +8,6 @@
 #include <linux/quotaops.h>
 #include <linux/module.h>
 
-#define MLOG_MASK_PREFIX ML_QUOTA
 #include <cluster/masklog.h>
 
 #include "ocfs2_fs.h"
@@ -23,6 +22,7 @@
 #include "quota.h"
 #include "uptodate.h"
 #include "super.h"
+#include "ocfs2_trace.h"
 
 /* Number of local quota structures per block */
 static inline unsigned int ol_quota_entries_per_block(struct super_block *sb)
@@ -475,7 +475,7 @@ static int ocfs2_recover_local_quota_file(struct inode *lqinode,
 	struct ocfs2_recovery_chunk *rchunk, *next;
 	qsize_t spacechange, inodechange;
 
-	mlog_entry("ino=%lu type=%u", (unsigned long)lqinode->i_ino, type);
+	trace_ocfs2_recover_local_quota_file((unsigned long)lqinode->i_ino, type);
 
 	list_for_each_entry_safe(rchunk, next, &(rec->r_list[type]), rc_list) {
 		chunk = rchunk->rc_chunk;
@@ -575,7 +575,8 @@ out_put_bh:
 	}
 	if (status < 0)
 		free_recovery_list(&(rec->r_list[type]));
-	mlog_exit(status);
+	if (status)
+		mlog_errno(status);
 	return status;
 }
 
@@ -600,7 +601,7 @@ int ocfs2_finish_quota_recovery(struct ocfs2_super *osb,
 	for (type = 0; type < MAXQUOTAS; type++) {
 		if (list_empty(&(rec->r_list[type])))
 			continue;
-		mlog(0, "Recovering quota in slot %d\n", slot_num);
+		trace_ocfs2_finish_quota_recovery(slot_num);
 		lqinode = ocfs2_get_system_file_inode(osb, ino[type], slot_num);
 		if (!lqinode) {
 			status = -ENOENT;
@@ -882,9 +883,10 @@ static void olq_set_dquot(struct buffer_head *bh, void *private)
 	dqblk->dqb_inodemod = cpu_to_le64(od->dq_dquot.dq_dqb.dqb_curinodes -
 					  od->dq_originodes);
 	spin_unlock(&dq_data_lock);
-	mlog(0, "Writing local dquot %u space %lld inodes %lld\n",
-	     od->dq_dquot.dq_id, (long long)le64_to_cpu(dqblk->dqb_spacemod),
-	     (long long)le64_to_cpu(dqblk->dqb_inodemod));
+	trace_olq_set_dquot(
+		(unsigned long long)le64_to_cpu(dqblk->dqb_spacemod),
+		(unsigned long long)le64_to_cpu(dqblk->dqb_inodemod),
+		od->dq_dquot.dq_id);
 }
 
 /* Write dquot to local quota file */
diff --git a/fs/ocfs2/refcounttree.c b/fs/ocfs2/refcounttree.c
index c384d634872a..5d32749c896d 100644
--- a/fs/ocfs2/refcounttree.c
+++ b/fs/ocfs2/refcounttree.c
@@ -16,7 +16,6 @@
  */
 
 #include <linux/sort.h>
-#define MLOG_MASK_PREFIX ML_REFCOUNT
 #include <cluster/masklog.h>
 #include "ocfs2.h"
 #include "inode.h"
@@ -34,6 +33,7 @@
 #include "aops.h"
 #include "xattr.h"
 #include "namei.h"
+#include "ocfs2_trace.h"
 
 #include <linux/bio.h>
 #include <linux/blkdev.h>
@@ -84,8 +84,7 @@ static int ocfs2_validate_refcount_block(struct super_block *sb,
 	struct ocfs2_refcount_block *rb =
 		(struct ocfs2_refcount_block *)bh->b_data;
 
-	mlog(0, "Validating refcount block %llu\n",
-	     (unsigned long long)bh->b_blocknr);
+	trace_ocfs2_validate_refcount_block((unsigned long long)bh->b_blocknr);
 
 	BUG_ON(!buffer_uptodate(bh));
 
@@ -545,8 +544,8 @@ void ocfs2_purge_refcount_trees(struct ocfs2_super *osb)
 	while ((node = rb_last(root)) != NULL) {
 		tree = rb_entry(node, struct ocfs2_refcount_tree, rf_node);
 
-		mlog(0, "Purge tree %llu\n",
-		     (unsigned long long) tree->rf_blkno);
+		trace_ocfs2_purge_refcount_trees(
+				(unsigned long long) tree->rf_blkno);
 
 		rb_erase(&tree->rf_node, root);
 		ocfs2_free_refcount_tree(tree);
@@ -575,7 +574,8 @@ static int ocfs2_create_refcount_tree(struct inode *inode,
 
 	BUG_ON(oi->ip_dyn_features & OCFS2_HAS_REFCOUNT_FL);
 
-	mlog(0, "create tree for inode %lu\n", inode->i_ino);
+	trace_ocfs2_create_refcount_tree(
+		(unsigned long long)OCFS2_I(inode)->ip_blkno);
 
 	ret = ocfs2_reserve_new_metadata_blocks(osb, 1, &meta_ac);
 	if (ret) {
@@ -646,8 +646,7 @@ static int ocfs2_create_refcount_tree(struct inode *inode,
 	di->i_refcount_loc = cpu_to_le64(first_blkno);
 	spin_unlock(&oi->ip_lock);
 
-	mlog(0, "created tree for inode %lu, refblock %llu\n",
-	     inode->i_ino, (unsigned long long)first_blkno);
+	trace_ocfs2_create_refcount_tree_blkno((unsigned long long)first_blkno);
 
 	ocfs2_journal_dirty(handle, di_bh);
 
@@ -1256,8 +1255,9 @@ static int ocfs2_change_refcount_rec(handle_t *handle,
 		goto out;
 	}
 
-	mlog(0, "change index %d, old count %u, change %d\n", index,
-	     le32_to_cpu(rec->r_refcount), change);
+	trace_ocfs2_change_refcount_rec(
+		(unsigned long long)ocfs2_metadata_cache_owner(ci),
+		index, le32_to_cpu(rec->r_refcount), change);
 	le32_add_cpu(&rec->r_refcount, change);
 
 	if (!rec->r_refcount) {
@@ -1353,8 +1353,8 @@ static int ocfs2_expand_inline_ref_root(handle_t *handle,
 
 	ocfs2_journal_dirty(handle, ref_root_bh);
 
-	mlog(0, "new leaf block %llu, used %u\n", (unsigned long long)blkno,
-	     le16_to_cpu(new_rb->rf_records.rl_used));
+	trace_ocfs2_expand_inline_ref_root((unsigned long long)blkno,
+		le16_to_cpu(new_rb->rf_records.rl_used));
 
 	*ref_leaf_bh = new_bh;
 	new_bh = NULL;
@@ -1466,9 +1466,9 @@ static int ocfs2_divide_leaf_refcount_block(struct buffer_head *ref_leaf_bh,
 			(struct ocfs2_refcount_block *)new_bh->b_data;
 	struct ocfs2_refcount_list *new_rl = &new_rb->rf_records;
 
-	mlog(0, "split old leaf refcount block %llu, count = %u, used = %u\n",
-	     (unsigned long long)ref_leaf_bh->b_blocknr,
-	     le32_to_cpu(rl->rl_count), le32_to_cpu(rl->rl_used));
+	trace_ocfs2_divide_leaf_refcount_block(
+		(unsigned long long)ref_leaf_bh->b_blocknr,
+		le32_to_cpu(rl->rl_count), le32_to_cpu(rl->rl_used));
 
 	/*
 	 * XXX: Improvement later.
@@ -1601,8 +1601,8 @@ static int ocfs2_new_leaf_refcount_block(handle_t *handle,
 
 	ocfs2_init_refcount_extent_tree(&ref_et, ci, ref_root_bh);
 
-	mlog(0, "insert new leaf block %llu at %u\n",
-	     (unsigned long long)new_bh->b_blocknr, new_cpos);
+	trace_ocfs2_new_leaf_refcount_block(
+			(unsigned long long)new_bh->b_blocknr, new_cpos);
 
 	/* Insert the new leaf block with the specific offset cpos. */
 	ret = ocfs2_insert_extent(handle, &ref_et, new_cpos, new_bh->b_blocknr,
@@ -1794,11 +1794,10 @@ static int ocfs2_insert_refcount_rec(handle_t *handle,
 			(le16_to_cpu(rf_list->rl_used) - index) *
 			 sizeof(struct ocfs2_refcount_rec));
 
-	mlog(0, "insert refcount record start %llu, len %u, count %u "
-	     "to leaf block %llu at index %d\n",
-	     (unsigned long long)le64_to_cpu(rec->r_cpos),
-	     le32_to_cpu(rec->r_clusters), le32_to_cpu(rec->r_refcount),
-	     (unsigned long long)ref_leaf_bh->b_blocknr, index);
+	trace_ocfs2_insert_refcount_rec(
+		(unsigned long long)ref_leaf_bh->b_blocknr, index,
+		(unsigned long long)le64_to_cpu(rec->r_cpos),
+		le32_to_cpu(rec->r_clusters), le32_to_cpu(rec->r_refcount));
 
 	rf_list->rl_recs[index] = *rec;
 
@@ -1850,10 +1849,12 @@ static int ocfs2_split_refcount_rec(handle_t *handle,
 
 	BUG_ON(le32_to_cpu(rb->rf_flags) & OCFS2_REFCOUNT_TREE_FL);
 
-	mlog(0, "original r_pos %llu, cluster %u, split %llu, cluster %u\n",
-	     le64_to_cpu(orig_rec->r_cpos), le32_to_cpu(orig_rec->r_clusters),
-	     le64_to_cpu(split_rec->r_cpos),
-	     le32_to_cpu(split_rec->r_clusters));
+	trace_ocfs2_split_refcount_rec(le64_to_cpu(orig_rec->r_cpos),
+		le32_to_cpu(orig_rec->r_clusters),
+		le32_to_cpu(orig_rec->r_refcount),
+		le64_to_cpu(split_rec->r_cpos),
+		le32_to_cpu(split_rec->r_clusters),
+		le32_to_cpu(split_rec->r_refcount));
 
 	/*
 	 * If we just need to split the header or tail clusters,
@@ -1967,12 +1968,11 @@ static int ocfs2_split_refcount_rec(handle_t *handle,
 
 	if (split_rec->r_refcount) {
 		rf_list->rl_recs[index] = *split_rec;
-		mlog(0, "insert refcount record start %llu, len %u, count %u "
-		     "to leaf block %llu at index %d\n",
-		     (unsigned long long)le64_to_cpu(split_rec->r_cpos),
-		     le32_to_cpu(split_rec->r_clusters),
-		     le32_to_cpu(split_rec->r_refcount),
-		     (unsigned long long)ref_leaf_bh->b_blocknr, index);
+		trace_ocfs2_split_refcount_rec_insert(
+			(unsigned long long)ref_leaf_bh->b_blocknr, index,
+			(unsigned long long)le64_to_cpu(split_rec->r_cpos),
+			le32_to_cpu(split_rec->r_clusters),
+			le32_to_cpu(split_rec->r_refcount));
 
 		if (merge)
 			ocfs2_refcount_rec_merge(rb, index);
@@ -1997,7 +1997,7 @@ static int __ocfs2_increase_refcount(handle_t *handle,
 	struct ocfs2_refcount_rec rec;
 	unsigned int set_len = 0;
 
-	mlog(0, "Tree owner %llu, add refcount start %llu, len %u\n",
+	trace_ocfs2_increase_refcount_begin(
 	     (unsigned long long)ocfs2_metadata_cache_owner(ci),
 	     (unsigned long long)cpos, len);
 
@@ -2024,9 +2024,9 @@ static int __ocfs2_increase_refcount(handle_t *handle,
 		 */
 		if (rec.r_refcount && le64_to_cpu(rec.r_cpos) == cpos &&
 		    set_len <= len) {
-			mlog(0, "increase refcount rec, start %llu, len %u, "
-			     "count %u\n", (unsigned long long)cpos, set_len,
-			     le32_to_cpu(rec.r_refcount));
+			trace_ocfs2_increase_refcount_change(
+				(unsigned long long)cpos, set_len,
+				le32_to_cpu(rec.r_refcount));
 			ret = ocfs2_change_refcount_rec(handle, ci,
 							ref_leaf_bh, index,
 							merge, 1);
@@ -2037,7 +2037,7 @@ static int __ocfs2_increase_refcount(handle_t *handle,
 		} else if (!rec.r_refcount) {
 			rec.r_refcount = cpu_to_le32(1);
 
-			mlog(0, "insert refcount rec, start %llu, len %u\n",
+			trace_ocfs2_increase_refcount_insert(
 			     (unsigned long long)le64_to_cpu(rec.r_cpos),
 			     set_len);
 			ret = ocfs2_insert_refcount_rec(handle, ci, ref_root_bh,
@@ -2055,8 +2055,7 @@ static int __ocfs2_increase_refcount(handle_t *handle,
 			rec.r_clusters = cpu_to_le32(set_len);
 			le32_add_cpu(&rec.r_refcount, 1);
 
-			mlog(0, "split refcount rec, start %llu, "
-			     "len %u, count %u\n",
+			trace_ocfs2_increase_refcount_split(
 			     (unsigned long long)le64_to_cpu(rec.r_cpos),
 			     set_len, le32_to_cpu(rec.r_refcount));
 			ret = ocfs2_split_refcount_rec(handle, ci,
@@ -2095,6 +2094,11 @@ static int ocfs2_remove_refcount_extent(handle_t *handle,
 
 	BUG_ON(rb->rf_records.rl_used);
 
+	trace_ocfs2_remove_refcount_extent(
+		(unsigned long long)ocfs2_metadata_cache_owner(ci),
+		(unsigned long long)ref_leaf_bh->b_blocknr,
+		le32_to_cpu(rb->rf_cpos));
+
 	ocfs2_init_refcount_extent_tree(&et, ci, ref_root_bh);
 	ret = ocfs2_remove_extent(handle, &et, le32_to_cpu(rb->rf_cpos),
 				  1, meta_ac, dealloc);
@@ -2137,7 +2141,7 @@ static int ocfs2_remove_refcount_extent(handle_t *handle,
 	if (!rb->rf_list.l_next_free_rec) {
 		BUG_ON(rb->rf_clusters);
 
-		mlog(0, "reset refcount tree root %llu to be a record block.\n",
+		trace_ocfs2_restore_refcount_block(
 		     (unsigned long long)ref_root_bh->b_blocknr);
 
 		rb->rf_flags = 0;
@@ -2184,6 +2188,10 @@ static int ocfs2_decrease_refcount_rec(handle_t *handle,
 	BUG_ON(cpos + len >
 	       le64_to_cpu(rec->r_cpos) + le32_to_cpu(rec->r_clusters));
 
+	trace_ocfs2_decrease_refcount_rec(
+		(unsigned long long)ocfs2_metadata_cache_owner(ci),
+		(unsigned long long)cpos, len);
+
 	if (cpos == le64_to_cpu(rec->r_cpos) &&
 	    len == le32_to_cpu(rec->r_clusters))
 		ret = ocfs2_change_refcount_rec(handle, ci,
@@ -2195,12 +2203,6 @@ static int ocfs2_decrease_refcount_rec(handle_t *handle,
 
 		le32_add_cpu(&split.r_refcount, -1);
 
-		mlog(0, "split refcount rec, start %llu, "
-		     "len %u, count %u, original start %llu, len %u\n",
-		     (unsigned long long)le64_to_cpu(split.r_cpos),
-		     len, le32_to_cpu(split.r_refcount),
-		     (unsigned long long)le64_to_cpu(rec->r_cpos),
-		     le32_to_cpu(rec->r_clusters));
 		ret = ocfs2_split_refcount_rec(handle, ci,
 					       ref_root_bh, ref_leaf_bh,
 					       &split, index, 1,
@@ -2239,10 +2241,9 @@ static int __ocfs2_decrease_refcount(handle_t *handle,
 	struct super_block *sb = ocfs2_metadata_cache_get_super(ci);
 	struct buffer_head *ref_leaf_bh = NULL;
 
-	mlog(0, "Tree owner %llu, decrease refcount start %llu, "
-	     "len %u, delete %u\n",
-	     (unsigned long long)ocfs2_metadata_cache_owner(ci),
-	     (unsigned long long)cpos, len, delete);
+	trace_ocfs2_decrease_refcount(
+		(unsigned long long)ocfs2_metadata_cache_owner(ci),
+		(unsigned long long)cpos, len, delete);
 
 	while (len) {
 		ret = ocfs2_get_refcount_rec(ci, ref_root_bh,
@@ -2352,8 +2353,8 @@ static int ocfs2_mark_extent_refcounted(struct inode *inode,
 {
 	int ret;
 
-	mlog(0, "Inode %lu refcount tree cpos %u, len %u, phys cluster %u\n",
-	     inode->i_ino, cpos, len, phys);
+	trace_ocfs2_mark_extent_refcounted(OCFS2_I(inode)->ip_blkno,
+					   cpos, len, phys);
 
 	if (!ocfs2_refcount_tree(OCFS2_SB(inode->i_sb))) {
 		ocfs2_error(inode->i_sb, "Inode %lu want to use refcount "
@@ -2392,8 +2393,6 @@ static int ocfs2_calc_refcount_meta_credits(struct super_block *sb,
 	struct buffer_head *ref_leaf_bh = NULL, *prev_bh = NULL;
 	u32 len;
 
-	mlog(0, "start_cpos %llu, clusters %u\n",
-	     (unsigned long long)start_cpos, clusters);
 	while (clusters) {
 		ret = ocfs2_get_refcount_rec(ci, ref_root_bh,
 					     cpos, clusters, &rec,
@@ -2427,12 +2426,11 @@ static int ocfs2_calc_refcount_meta_credits(struct super_block *sb,
 
 		rb = (struct ocfs2_refcount_block *)ref_leaf_bh->b_data;
 
-		mlog(0, "recs_add %d,cpos %llu, clusters %u, rec->r_cpos %llu,"
-		     "rec->r_clusters %u, rec->r_refcount %u, index %d\n",
-		     recs_add, (unsigned long long)cpos, clusters,
-		     (unsigned long long)le64_to_cpu(rec.r_cpos),
-		     le32_to_cpu(rec.r_clusters),
-		     le32_to_cpu(rec.r_refcount), index);
+		trace_ocfs2_calc_refcount_meta_credits_iterate(
+				recs_add, (unsigned long long)cpos, clusters,
+				(unsigned long long)le64_to_cpu(rec.r_cpos),
+				le32_to_cpu(rec.r_clusters),
+				le32_to_cpu(rec.r_refcount), index);
 
 		len = min((u64)cpos + clusters, le64_to_cpu(rec.r_cpos) +
 			  le32_to_cpu(rec.r_clusters)) - cpos;
@@ -2488,7 +2486,6 @@ static int ocfs2_calc_refcount_meta_credits(struct super_block *sb,
 	if (!ref_blocks)
 		goto out;
 
-	mlog(0, "we need ref_blocks %d\n", ref_blocks);
 	*meta_add += ref_blocks;
 	*credits += ref_blocks;
 
@@ -2514,6 +2511,10 @@ static int ocfs2_calc_refcount_meta_credits(struct super_block *sb,
 	}
 
 out:
+
+	trace_ocfs2_calc_refcount_meta_credits(
+		(unsigned long long)start_cpos, clusters,
+		*meta_add, *credits);
 	brelse(ref_leaf_bh);
 	brelse(prev_bh);
 	return ret;
@@ -2578,8 +2579,7 @@ int ocfs2_prepare_refcount_change_for_del(struct inode *inode,
 		goto out;
 	}
 
-	mlog(0, "reserve new metadata %d blocks, credits = %d\n",
-	     *ref_blocks, *credits);
+	trace_ocfs2_prepare_refcount_change_for_del(*ref_blocks, *credits);
 
 out:
 	brelse(ref_root_bh);
@@ -2886,8 +2886,7 @@ static int ocfs2_lock_refcount_allocators(struct super_block *sb,
 		goto out;
 	}
 
-	mlog(0, "reserve new metadata %d, clusters %u, credits = %d\n",
-	     meta_add, num_clusters, *credits);
+	trace_ocfs2_lock_refcount_allocators(meta_add, *credits);
 	ret = ocfs2_reserve_new_metadata_blocks(OCFS2_SB(sb), meta_add,
 						meta_ac);
 	if (ret) {
@@ -2937,8 +2936,8 @@ static int ocfs2_duplicate_clusters_by_page(handle_t *handle,
 	loff_t offset, end, map_end;
 	struct address_space *mapping = context->inode->i_mapping;
 
-	mlog(0, "old_cluster %u, new %u, len %u at offset %u\n", old_cluster,
-	     new_cluster, new_len, cpos);
+	trace_ocfs2_duplicate_clusters_by_page(cpos, old_cluster,
+					       new_cluster, new_len);
 
 	readahead_pages =
 		(ocfs2_cow_contig_clusters(sb) <<
@@ -3031,8 +3030,8 @@ static int ocfs2_duplicate_clusters_by_jbd(handle_t *handle,
 	struct buffer_head *old_bh = NULL;
 	struct buffer_head *new_bh = NULL;
 
-	mlog(0, "old_cluster %u, new %u, len %u\n", old_cluster,
-	     new_cluster, new_len);
+	trace_ocfs2_duplicate_clusters_by_page(cpos, old_cluster,
+					       new_cluster, new_len);
 
 	for (i = 0; i < blocks; i++, old_block++, new_block++) {
 		new_bh = sb_getblk(osb->sb, new_block);
@@ -3085,8 +3084,8 @@ static int ocfs2_clear_ext_refcount(handle_t *handle,
 	struct super_block *sb = ocfs2_metadata_cache_get_super(et->et_ci);
 	u64 ino = ocfs2_metadata_cache_owner(et->et_ci);
 
-	mlog(0, "inode %llu cpos %u, len %u, p_cluster %u, ext_flags %u\n",
-	     (unsigned long long)ino, cpos, len, p_cluster, ext_flags);
+	trace_ocfs2_clear_ext_refcount((unsigned long long)ino,
+				       cpos, len, p_cluster, ext_flags);
 
 	memset(&replace_rec, 0, sizeof(replace_rec));
 	replace_rec.e_cpos = cpu_to_le32(cpos);
@@ -3141,8 +3140,8 @@ static int ocfs2_replace_clusters(handle_t *handle,
 	struct ocfs2_caching_info *ci = context->data_et.et_ci;
 	u64 ino = ocfs2_metadata_cache_owner(ci);
 
-	mlog(0, "inode %llu, cpos %u, old %u, new %u, len %u, ext_flags %u\n",
-	     (unsigned long long)ino, cpos, old, new, len, ext_flags);
+	trace_ocfs2_replace_clusters((unsigned long long)ino,
+				     cpos, old, new, len, ext_flags);
 
 	/*If the old clusters is unwritten, no need to duplicate. */
 	if (!(ext_flags & OCFS2_EXT_UNWRITTEN)) {
@@ -3236,8 +3235,8 @@ static int ocfs2_make_clusters_writable(struct super_block *sb,
 	struct ocfs2_caching_info *ref_ci = &context->ref_tree->rf_ci;
 	struct ocfs2_refcount_rec rec;
 
-	mlog(0, "cpos %u, p_cluster %u, num_clusters %u, e_flags %u\n",
-	     cpos, p_cluster, num_clusters, e_flags);
+	trace_ocfs2_make_clusters_writable(cpos, p_cluster,
+					   num_clusters, e_flags);
 
 	ret = ocfs2_lock_refcount_allocators(sb, p_cluster, num_clusters,
 					     &context->data_et,
@@ -3475,9 +3474,9 @@ static int ocfs2_refcount_cow_hunk(struct inode *inode,
 		goto out;
 	}
 
-	mlog(0, "CoW inode %lu, cpos %u, write_len %u, cow_start %u, "
-	     "cow_len %u\n", inode->i_ino,
-	     cpos, write_len, cow_start, cow_len);
+	trace_ocfs2_refcount_cow_hunk(OCFS2_I(inode)->ip_blkno,
+				      cpos, write_len, max_cpos,
+				      cow_start, cow_len);
 
 	BUG_ON(cow_len == 0);
 
@@ -3756,8 +3755,7 @@ int ocfs2_add_refcount_flag(struct inode *inode,
 		goto out;
 	}
 
-	mlog(0, "reserve new metadata %d, credits = %d\n",
-	     ref_blocks, credits);
+	trace_ocfs2_add_refcount_flag(ref_blocks, credits);
 
 	if (ref_blocks) {
 		ret = ocfs2_reserve_new_metadata_blocks(OCFS2_SB(inode->i_sb),
diff --git a/fs/ocfs2/reservations.c b/fs/ocfs2/reservations.c
index 3e78db361bc7..41ffd36c689c 100644
--- a/fs/ocfs2/reservations.c
+++ b/fs/ocfs2/reservations.c
@@ -30,10 +30,10 @@
 #include <linux/bitops.h>
 #include <linux/list.h>
 
-#define MLOG_MASK_PREFIX ML_RESERVATIONS
 #include <cluster/masklog.h>
 
 #include "ocfs2.h"
+#include "ocfs2_trace.h"
 
 #ifdef CONFIG_OCFS2_DEBUG_FS
 #define OCFS2_CHECK_RESERVATIONS
@@ -321,8 +321,7 @@ static void ocfs2_resv_insert(struct ocfs2_reservation_map *resmap,
 
 	assert_spin_locked(&resv_lock);
 
-	mlog(0, "Insert reservation start: %u len: %u\n", new->r_start,
-	     new->r_len);
+	trace_ocfs2_resv_insert(new->r_start, new->r_len);
 
 	while (*p) {
 		parent = *p;
@@ -423,8 +422,8 @@ static int ocfs2_resmap_find_free_bits(struct ocfs2_reservation_map *resmap,
 	unsigned int best_start, best_len = 0;
 	int offset, start, found;
 
-	mlog(0, "Find %u bits within range (%u, len %u) resmap len: %u\n",
-	     wanted, search_start, search_len, resmap->m_bitmap_len);
+	trace_ocfs2_resmap_find_free_bits_begin(search_start, search_len,
+						wanted, resmap->m_bitmap_len);
 
 	found = best_start = best_len = 0;
 
@@ -463,7 +462,7 @@ static int ocfs2_resmap_find_free_bits(struct ocfs2_reservation_map *resmap,
 	*rlen = best_len;
 	*rstart = best_start;
 
-	mlog(0, "Found start: %u len: %u\n", best_start, best_len);
+	trace_ocfs2_resmap_find_free_bits_end(best_start, best_len);
 
 	return *rlen;
 }
@@ -487,9 +486,8 @@ static void __ocfs2_resv_find_window(struct ocfs2_reservation_map *resmap,
 	 * - our window should be last in all reservations
 	 * - need to make sure we don't go past end of bitmap
 	 */
-
-	mlog(0, "resv start: %u resv end: %u goal: %u wanted: %u\n",
-	     resv->r_start, ocfs2_resv_end(resv), goal, wanted);
+	trace_ocfs2_resv_find_window_begin(resv->r_start, ocfs2_resv_end(resv),
+					   goal, wanted, RB_EMPTY_ROOT(root));
 
 	assert_spin_locked(&resv_lock);
 
@@ -498,9 +496,6 @@ static void __ocfs2_resv_find_window(struct ocfs2_reservation_map *resmap,
 		 * Easiest case - empty tree. We can just take
 		 * whatever window of free bits we want.
 		 */
-
-		mlog(0, "Empty root\n");
-
 		clen = ocfs2_resmap_find_free_bits(resmap, wanted, goal,
 						   resmap->m_bitmap_len - goal,
 						   &cstart, &clen);
@@ -524,8 +519,6 @@ static void __ocfs2_resv_find_window(struct ocfs2_reservation_map *resmap,
 	prev_resv = ocfs2_find_resv_lhs(resmap, goal);
 
 	if (prev_resv == NULL) {
-		mlog(0, "Goal on LHS of leftmost window\n");
-
 		/*
 		 * A NULL here means that the search code couldn't
 		 * find a window that starts before goal.
@@ -570,13 +563,15 @@ static void __ocfs2_resv_find_window(struct ocfs2_reservation_map *resmap,
 		next_resv = NULL;
 	}
 
+	trace_ocfs2_resv_find_window_prev(prev_resv->r_start,
+					  ocfs2_resv_end(prev_resv));
+
 	prev = &prev_resv->r_node;
 
 	/* Now we do a linear search for a window, starting at 'prev_rsv' */
 	while (1) {
 		next = rb_next(prev);
 		if (next) {
-			mlog(0, "One more resv found in linear search\n");
 			next_resv = rb_entry(next,
 					     struct ocfs2_alloc_reservation,
 					     r_node);
@@ -585,7 +580,6 @@ static void __ocfs2_resv_find_window(struct ocfs2_reservation_map *resmap,
 			gap_end = next_resv->r_start - 1;
 			gap_len = gap_end - gap_start + 1;
 		} else {
-			mlog(0, "No next node\n");
 			/*
 			 * We're at the rightmost edge of the
 			 * tree. See if a reservation between this
@@ -596,6 +590,8 @@ static void __ocfs2_resv_find_window(struct ocfs2_reservation_map *resmap,
 			gap_end = resmap->m_bitmap_len - 1;
 		}
 
+		trace_ocfs2_resv_find_window_next(next ? next_resv->r_start: -1,
+					next ? ocfs2_resv_end(next_resv) : -1);
 		/*
 		 * No need to check this gap if we have already found
 		 * a larger region of free bits.
@@ -654,8 +650,9 @@ static void ocfs2_cannibalize_resv(struct ocfs2_reservation_map *resmap,
 	lru_resv = list_first_entry(&resmap->m_lru,
 				    struct ocfs2_alloc_reservation, r_lru);
 
-	mlog(0, "lru resv: start: %u len: %u end: %u\n", lru_resv->r_start,
-	     lru_resv->r_len, ocfs2_resv_end(lru_resv));
+	trace_ocfs2_cannibalize_resv_begin(lru_resv->r_start,
+					   lru_resv->r_len,
+					   ocfs2_resv_end(lru_resv));
 
 	/*
 	 * Cannibalize (some or all) of the target reservation and
@@ -684,10 +681,9 @@ static void ocfs2_cannibalize_resv(struct ocfs2_reservation_map *resmap,
 		resv->r_len = shrink;
 	}
 
-	mlog(0, "Reservation now looks like: r_start: %u r_end: %u "
-	     "r_len: %u r_last_start: %u r_last_len: %u\n",
-	     resv->r_start, ocfs2_resv_end(resv), resv->r_len,
-	     resv->r_last_start, resv->r_last_len);
+	trace_ocfs2_cannibalize_resv_end(resv->r_start, ocfs2_resv_end(resv),
+					 resv->r_len, resv->r_last_start,
+					 resv->r_last_len);
 
 	ocfs2_resv_insert(resmap, resv);
 }
@@ -748,7 +744,6 @@ int ocfs2_resmap_resv_bits(struct ocfs2_reservation_map *resmap,
 		if ((resv->r_flags & OCFS2_RESV_FLAG_TMP) || wanted < *clen)
 			wanted = *clen;
 
-		mlog(0, "empty reservation, find new window\n");
 		/*
 		 * Try to get a window here. If it works, we must fall
 		 * through and test the bitmap . This avoids some
@@ -757,6 +752,7 @@ int ocfs2_resmap_resv_bits(struct ocfs2_reservation_map *resmap,
 		 * that inode.
 		 */
 		ocfs2_resv_find_window(resmap, resv, wanted);
+		trace_ocfs2_resmap_resv_bits(resv->r_start, resv->r_len);
 	}
 
 	BUG_ON(ocfs2_resv_empty(resv));
@@ -813,10 +809,10 @@ void ocfs2_resmap_claimed_bits(struct ocfs2_reservation_map *resmap,
 
 	spin_lock(&resv_lock);
 
-	mlog(0, "claim bits: cstart: %u cend: %u clen: %u r_start: %u "
-	     "r_end: %u r_len: %u, r_last_start: %u r_last_len: %u\n",
-	     cstart, cend, clen, resv->r_start, ocfs2_resv_end(resv),
-	     resv->r_len, resv->r_last_start, resv->r_last_len);
+	trace_ocfs2_resmap_claimed_bits_begin(cstart, cend, clen, resv->r_start,
+					      ocfs2_resv_end(resv), resv->r_len,
+					      resv->r_last_start,
+					      resv->r_last_len);
 
 	BUG_ON(cstart < resv->r_start);
 	BUG_ON(cstart > ocfs2_resv_end(resv));
@@ -833,10 +829,9 @@ void ocfs2_resmap_claimed_bits(struct ocfs2_reservation_map *resmap,
 	if (!ocfs2_resv_empty(resv))
 		ocfs2_resv_mark_lru(resmap, resv);
 
-	mlog(0, "Reservation now looks like: r_start: %u r_end: %u "
-	     "r_len: %u r_last_start: %u r_last_len: %u\n",
-	     resv->r_start, ocfs2_resv_end(resv), resv->r_len,
-	     resv->r_last_start, resv->r_last_len);
+	trace_ocfs2_resmap_claimed_bits_end(resv->r_start, ocfs2_resv_end(resv),
+					    resv->r_len, resv->r_last_start,
+					    resv->r_last_len);
 
 	ocfs2_check_resmap(resmap);
 
diff --git a/fs/ocfs2/reservations.h b/fs/ocfs2/reservations.h
index 1e49cc29d06c..42c2b804f3fd 100644
--- a/fs/ocfs2/reservations.h
+++ b/fs/ocfs2/reservations.h
@@ -29,7 +29,7 @@
 struct ocfs2_alloc_reservation {
 	struct rb_node	r_node;
 
-	unsigned int	r_start;	/* Begining of current window */
+	unsigned int	r_start;	/* Beginning of current window */
 	unsigned int	r_len;		/* Length of the window */
 
 	unsigned int	r_last_len;	/* Length of most recent alloc */
diff --git a/fs/ocfs2/resize.c b/fs/ocfs2/resize.c
index dacd553d8617..ec55add7604a 100644
--- a/fs/ocfs2/resize.c
+++ b/fs/ocfs2/resize.c
@@ -27,7 +27,6 @@
 #include <linux/fs.h>
 #include <linux/types.h>
 
-#define MLOG_MASK_PREFIX ML_DISK_ALLOC
 #include <cluster/masklog.h>
 
 #include "ocfs2.h"
@@ -39,6 +38,7 @@
 #include "super.h"
 #include "sysfile.h"
 #include "uptodate.h"
+#include "ocfs2_trace.h"
 
 #include "buffer_head_io.h"
 #include "suballoc.h"
@@ -82,7 +82,6 @@ static u16 ocfs2_calc_new_backup_super(struct inode *inode,
 		backups++;
 	}
 
-	mlog_exit_void();
 	return backups;
 }
 
@@ -103,8 +102,8 @@ static int ocfs2_update_last_group_and_inode(handle_t *handle,
 	u16 cl_bpc = le16_to_cpu(cl->cl_bpc);
 	u16 cl_cpg = le16_to_cpu(cl->cl_cpg);
 
-	mlog_entry("(new_clusters=%d, first_new_cluster = %u)\n",
-		   new_clusters, first_new_cluster);
+	trace_ocfs2_update_last_group_and_inode(new_clusters,
+						first_new_cluster);
 
 	ret = ocfs2_journal_access_gd(handle, INODE_CACHE(bm_inode),
 				      group_bh, OCFS2_JOURNAL_ACCESS_WRITE);
@@ -176,7 +175,8 @@ out_rollback:
 		le16_add_cpu(&group->bg_free_bits_count, -1 * num_bits);
 	}
 out:
-	mlog_exit(ret);
+	if (ret)
+		mlog_errno(ret);
 	return ret;
 }
 
@@ -281,8 +281,6 @@ int ocfs2_group_extend(struct inode * inode, int new_clusters)
 	u32 first_new_cluster;
 	u64 lgd_blkno;
 
-	mlog_entry_void();
-
 	if (ocfs2_is_hard_readonly(osb) || ocfs2_is_soft_readonly(osb))
 		return -EROFS;
 
@@ -342,7 +340,8 @@ int ocfs2_group_extend(struct inode * inode, int new_clusters)
 		goto out_unlock;
 	}
 
-	mlog(0, "extend the last group at %llu, new clusters = %d\n",
+
+	trace_ocfs2_group_extend(
 	     (unsigned long long)le64_to_cpu(group->bg_blkno), new_clusters);
 
 	handle = ocfs2_start_trans(osb, OCFS2_GROUP_EXTEND_CREDITS);
@@ -377,7 +376,6 @@ out_mutex:
 	iput(main_bm_inode);
 
 out:
-	mlog_exit_void();
 	return ret;
 }
 
@@ -472,8 +470,6 @@ int ocfs2_group_add(struct inode *inode, struct ocfs2_new_group_input *input)
 	struct ocfs2_chain_rec *cr;
 	u16 cl_bpc;
 
-	mlog_entry_void();
-
 	if (ocfs2_is_hard_readonly(osb) || ocfs2_is_soft_readonly(osb))
 		return -EROFS;
 
@@ -520,8 +516,8 @@ int ocfs2_group_add(struct inode *inode, struct ocfs2_new_group_input *input)
 		goto out_unlock;
 	}
 
-	mlog(0, "Add a new group  %llu in chain = %u, length = %u\n",
-	     (unsigned long long)input->group, input->chain, input->clusters);
+	trace_ocfs2_group_add((unsigned long long)input->group,
+			       input->chain, input->clusters, input->frees);
 
 	handle = ocfs2_start_trans(osb, OCFS2_GROUP_ADD_CREDITS);
 	if (IS_ERR(handle)) {
@@ -589,6 +585,5 @@ out_mutex:
 	iput(main_bm_inode);
 
 out:
-	mlog_exit_void();
 	return ret;
 }
diff --git a/fs/ocfs2/slot_map.c b/fs/ocfs2/slot_map.c
index ab4e0172cc1d..26fc0014d509 100644
--- a/fs/ocfs2/slot_map.c
+++ b/fs/ocfs2/slot_map.c
@@ -27,7 +27,6 @@
 #include <linux/slab.h>
 #include <linux/highmem.h>
 
-#define MLOG_MASK_PREFIX ML_SUPER
 #include <cluster/masklog.h>
 
 #include "ocfs2.h"
@@ -39,6 +38,7 @@
 #include "slot_map.h"
 #include "super.h"
 #include "sysfile.h"
+#include "ocfs2_trace.h"
 
 #include "buffer_head_io.h"
 
@@ -142,8 +142,7 @@ int ocfs2_refresh_slot_info(struct ocfs2_super *osb)
 	BUG_ON(si->si_blocks == 0);
 	BUG_ON(si->si_bh == NULL);
 
-	mlog(0, "Refreshing slot map, reading %u block(s)\n",
-	     si->si_blocks);
+	trace_ocfs2_refresh_slot_info(si->si_blocks);
 
 	/*
 	 * We pass -1 as blocknr because we expect all of si->si_bh to
@@ -381,8 +380,7 @@ static int ocfs2_map_slot_buffers(struct ocfs2_super *osb,
 	/* The size checks above should ensure this */
 	BUG_ON((osb->max_slots / si->si_slots_per_block) > blocks);
 
-	mlog(0, "Slot map needs %u buffers for %llu bytes\n",
-	     si->si_blocks, bytes);
+	trace_ocfs2_map_slot_buffers(bytes, si->si_blocks);
 
 	si->si_bh = kzalloc(sizeof(struct buffer_head *) * si->si_blocks,
 			    GFP_KERNEL);
@@ -400,8 +398,7 @@ static int ocfs2_map_slot_buffers(struct ocfs2_super *osb,
 			goto bail;
 		}
 
-		mlog(0, "Reading slot map block %u at %llu\n", i,
-		     (unsigned long long)blkno);
+		trace_ocfs2_map_slot_buffers_block((unsigned long long)blkno, i);
 
 		bh = NULL;  /* Acquire a fresh bh */
 		status = ocfs2_read_blocks(INODE_CACHE(si->si_inode), blkno,
@@ -475,8 +472,6 @@ int ocfs2_find_slot(struct ocfs2_super *osb)
 	int slot;
 	struct ocfs2_slot_info *si;
 
-	mlog_entry_void();
-
 	si = osb->slot_info;
 
 	spin_lock(&osb->osb_lock);
@@ -505,14 +500,13 @@ int ocfs2_find_slot(struct ocfs2_super *osb)
 	osb->slot_num = slot;
 	spin_unlock(&osb->osb_lock);
 
-	mlog(0, "taking node slot %d\n", osb->slot_num);
+	trace_ocfs2_find_slot(osb->slot_num);
 
 	status = ocfs2_update_disk_slot(osb, si, osb->slot_num);
 	if (status < 0)
 		mlog_errno(status);
 
 bail:
-	mlog_exit(status);
 	return status;
 }
 
diff --git a/fs/ocfs2/stackglue.h b/fs/ocfs2/stackglue.h
index 8ce7398ae1d2..1ec56fdb8d0d 100644
--- a/fs/ocfs2/stackglue.h
+++ b/fs/ocfs2/stackglue.h
@@ -126,7 +126,7 @@ struct ocfs2_stack_operations {
 	 *
 	 * ->connect() must not return until it is guaranteed that
 	 *
-	 *  - Node down notifications for the filesystem will be recieved
+	 *  - Node down notifications for the filesystem will be received
 	 *    and passed to conn->cc_recovery_handler().
 	 *  - Locking requests for the filesystem will be processed.
 	 */
diff --git a/fs/ocfs2/suballoc.c b/fs/ocfs2/suballoc.c
index 71998d4d61d5..ba5d97e4a73e 100644
--- a/fs/ocfs2/suballoc.c
+++ b/fs/ocfs2/suballoc.c
@@ -29,7 +29,6 @@
 #include <linux/slab.h>
 #include <linux/highmem.h>
 
-#define MLOG_MASK_PREFIX ML_DISK_ALLOC
 #include <cluster/masklog.h>
 
 #include "ocfs2.h"
@@ -44,6 +43,7 @@
 #include "super.h"
 #include "sysfile.h"
 #include "uptodate.h"
+#include "ocfs2_trace.h"
 
 #include "buffer_head_io.h"
 
@@ -308,8 +308,8 @@ static int ocfs2_validate_group_descriptor(struct super_block *sb,
 	int rc;
 	struct ocfs2_group_desc *gd = (struct ocfs2_group_desc *)bh->b_data;
 
-	mlog(0, "Validating group descriptor %llu\n",
-	     (unsigned long long)bh->b_blocknr);
+	trace_ocfs2_validate_group_descriptor(
+					(unsigned long long)bh->b_blocknr);
 
 	BUG_ON(!buffer_uptodate(bh));
 
@@ -389,8 +389,6 @@ static int ocfs2_block_group_fill(handle_t *handle,
 	struct ocfs2_group_desc *bg = (struct ocfs2_group_desc *) bg_bh->b_data;
 	struct super_block * sb = alloc_inode->i_sb;
 
-	mlog_entry_void();
-
 	if (((unsigned long long) bg_bh->b_blocknr) != group_blkno) {
 		ocfs2_error(alloc_inode->i_sb, "group block (%llu) != "
 			    "b_blocknr (%llu)",
@@ -436,7 +434,8 @@ static int ocfs2_block_group_fill(handle_t *handle,
 	 * allocation time. */
 
 bail:
-	mlog_exit(status);
+	if (status)
+		mlog_errno(status);
 	return status;
 }
 
@@ -477,8 +476,8 @@ ocfs2_block_group_alloc_contig(struct ocfs2_super *osb, handle_t *handle,
 
 	/* setup the group */
 	bg_blkno = ocfs2_clusters_to_blocks(osb->sb, bit_off);
-	mlog(0, "new descriptor, record %u, at block %llu\n",
-	     alloc_rec, (unsigned long long)bg_blkno);
+	trace_ocfs2_block_group_alloc_contig(
+	     (unsigned long long)bg_blkno, alloc_rec);
 
 	bg_bh = sb_getblk(osb->sb, bg_blkno);
 	if (!bg_bh) {
@@ -657,8 +656,8 @@ ocfs2_block_group_alloc_discontig(handle_t *handle,
 
 	/* setup the group */
 	bg_blkno = ocfs2_clusters_to_blocks(osb->sb, bit_off);
-	mlog(0, "new descriptor, record %u, at block %llu\n",
-	     alloc_rec, (unsigned long long)bg_blkno);
+	trace_ocfs2_block_group_alloc_discontig(
+				(unsigned long long)bg_blkno, alloc_rec);
 
 	bg_bh = sb_getblk(osb->sb, bg_blkno);
 	if (!bg_bh) {
@@ -707,8 +706,6 @@ static int ocfs2_block_group_alloc(struct ocfs2_super *osb,
 
 	BUG_ON(ocfs2_is_cluster_bitmap(alloc_inode));
 
-	mlog_entry_void();
-
 	cl = &fe->id2.i_chain;
 	status = ocfs2_reserve_clusters_with_limit(osb,
 						   le16_to_cpu(cl->cl_cpg),
@@ -730,8 +727,8 @@ static int ocfs2_block_group_alloc(struct ocfs2_super *osb,
 	}
 
 	if (last_alloc_group && *last_alloc_group != 0) {
-		mlog(0, "use old allocation group %llu for block group alloc\n",
-		     (unsigned long long)*last_alloc_group);
+		trace_ocfs2_block_group_alloc(
+				(unsigned long long)*last_alloc_group);
 		ac->ac_last_group = *last_alloc_group;
 	}
 
@@ -796,7 +793,8 @@ bail:
 
 	brelse(bg_bh);
 
-	mlog_exit(status);
+	if (status)
+		mlog_errno(status);
 	return status;
 }
 
@@ -814,8 +812,6 @@ static int ocfs2_reserve_suballoc_bits(struct ocfs2_super *osb,
 	struct ocfs2_dinode *fe;
 	u32 free_bits;
 
-	mlog_entry_void();
-
 	alloc_inode = ocfs2_get_system_file_inode(osb, type, slot);
 	if (!alloc_inode) {
 		mlog_errno(-EINVAL);
@@ -855,16 +851,15 @@ static int ocfs2_reserve_suballoc_bits(struct ocfs2_super *osb,
 	if (bits_wanted > free_bits) {
 		/* cluster bitmap never grows */
 		if (ocfs2_is_cluster_bitmap(alloc_inode)) {
-			mlog(0, "Disk Full: wanted=%u, free_bits=%u\n",
-			     bits_wanted, free_bits);
+			trace_ocfs2_reserve_suballoc_bits_nospc(bits_wanted,
+								free_bits);
 			status = -ENOSPC;
 			goto bail;
 		}
 
 		if (!(flags & ALLOC_NEW_GROUP)) {
-			mlog(0, "Alloc File %u Full: wanted=%u, free_bits=%u, "
-			     "and we don't alloc a new group for it.\n",
-			     slot, bits_wanted, free_bits);
+			trace_ocfs2_reserve_suballoc_bits_no_new_group(
+						slot, bits_wanted, free_bits);
 			status = -ENOSPC;
 			goto bail;
 		}
@@ -890,7 +885,8 @@ static int ocfs2_reserve_suballoc_bits(struct ocfs2_super *osb,
 bail:
 	brelse(bh);
 
-	mlog_exit(status);
+	if (status)
+		mlog_errno(status);
 	return status;
 }
 
@@ -1052,7 +1048,8 @@ bail:
 		*ac = NULL;
 	}
 
-	mlog_exit(status);
+	if (status)
+		mlog_errno(status);
 	return status;
 }
 
@@ -1119,8 +1116,8 @@ int ocfs2_reserve_new_inode(struct ocfs2_super *osb,
 		spin_lock(&osb->osb_lock);
 		osb->osb_inode_alloc_group = alloc_group;
 		spin_unlock(&osb->osb_lock);
-		mlog(0, "after reservation, new allocation group is "
-		     "%llu\n", (unsigned long long)alloc_group);
+		trace_ocfs2_reserve_new_inode_new_group(
+			(unsigned long long)alloc_group);
 
 		/*
 		 * Some inodes must be freed by us, so try to allocate
@@ -1152,7 +1149,8 @@ bail:
 		*ac = NULL;
 	}
 
-	mlog_exit(status);
+	if (status)
+		mlog_errno(status);
 	return status;
 }
 
@@ -1189,8 +1187,6 @@ static int ocfs2_reserve_clusters_with_limit(struct ocfs2_super *osb,
 {
 	int status;
 
-	mlog_entry_void();
-
 	*ac = kzalloc(sizeof(struct ocfs2_alloc_context), GFP_KERNEL);
 	if (!(*ac)) {
 		status = -ENOMEM;
@@ -1229,7 +1225,8 @@ bail:
 		*ac = NULL;
 	}
 
-	mlog_exit(status);
+	if (status)
+		mlog_errno(status);
 	return status;
 }
 
@@ -1357,15 +1354,12 @@ static inline int ocfs2_block_group_set_bits(handle_t *handle,
 	void *bitmap = bg->bg_bitmap;
 	int journal_type = OCFS2_JOURNAL_ACCESS_WRITE;
 
-	mlog_entry_void();
-
 	/* All callers get the descriptor via
 	 * ocfs2_read_group_descriptor().  Any corruption is a code bug. */
 	BUG_ON(!OCFS2_IS_VALID_GROUP_DESC(bg));
 	BUG_ON(le16_to_cpu(bg->bg_free_bits_count) < num_bits);
 
-	mlog(0, "block_group_set_bits: off = %u, num = %u\n", bit_off,
-	     num_bits);
+	trace_ocfs2_block_group_set_bits(bit_off, num_bits);
 
 	if (ocfs2_is_cluster_bitmap(alloc_inode))
 		journal_type = OCFS2_JOURNAL_ACCESS_UNDO;
@@ -1394,7 +1388,8 @@ static inline int ocfs2_block_group_set_bits(handle_t *handle,
 	ocfs2_journal_dirty(handle, group_bh);
 
 bail:
-	mlog_exit(status);
+	if (status)
+		mlog_errno(status);
 	return status;
 }
 
@@ -1437,10 +1432,10 @@ static int ocfs2_relink_block_group(handle_t *handle,
 	BUG_ON(!OCFS2_IS_VALID_GROUP_DESC(bg));
 	BUG_ON(!OCFS2_IS_VALID_GROUP_DESC(prev_bg));
 
-	mlog(0, "Suballoc %llu, chain %u, move group %llu to top, prev = %llu\n",
-	     (unsigned long long)le64_to_cpu(fe->i_blkno), chain,
-	     (unsigned long long)le64_to_cpu(bg->bg_blkno),
-	     (unsigned long long)le64_to_cpu(prev_bg->bg_blkno));
+	trace_ocfs2_relink_block_group(
+		(unsigned long long)le64_to_cpu(fe->i_blkno), chain,
+		(unsigned long long)le64_to_cpu(bg->bg_blkno),
+		(unsigned long long)le64_to_cpu(prev_bg->bg_blkno));
 
 	fe_ptr = le64_to_cpu(fe->id2.i_chain.cl_recs[chain].c_blkno);
 	bg_ptr = le64_to_cpu(bg->bg_next_group);
@@ -1484,7 +1479,8 @@ out_rollback:
 		prev_bg->bg_next_group = cpu_to_le64(prev_bg_ptr);
 	}
 
-	mlog_exit(status);
+	if (status)
+		mlog_errno(status);
 	return status;
 }
 
@@ -1515,7 +1511,7 @@ static int ocfs2_cluster_group_search(struct inode *inode,
 		max_bits = le16_to_cpu(gd->bg_bits);
 
 		/* Tail groups in cluster bitmaps which aren't cpg
-		 * aligned are prone to partial extention by a failed
+		 * aligned are prone to partial extension by a failed
 		 * fs resize. If the file system resize never got to
 		 * update the dinode cluster count, then we don't want
 		 * to trust any clusters past it, regardless of what
@@ -1525,10 +1521,10 @@ static int ocfs2_cluster_group_search(struct inode *inode,
 		if ((gd_cluster_off + max_bits) >
 		    OCFS2_I(inode)->ip_clusters) {
 			max_bits = OCFS2_I(inode)->ip_clusters - gd_cluster_off;
-			mlog(0, "Desc %llu, bg_bits %u, clusters %u, use %u\n",
-			     (unsigned long long)le64_to_cpu(gd->bg_blkno),
-			     le16_to_cpu(gd->bg_bits),
-			     OCFS2_I(inode)->ip_clusters, max_bits);
+			trace_ocfs2_cluster_group_search_wrong_max_bits(
+				(unsigned long long)le64_to_cpu(gd->bg_blkno),
+				le16_to_cpu(gd->bg_bits),
+				OCFS2_I(inode)->ip_clusters, max_bits);
 		}
 
 		ret = ocfs2_block_group_find_clear_bits(OCFS2_SB(inode->i_sb),
@@ -1542,9 +1538,9 @@ static int ocfs2_cluster_group_search(struct inode *inode,
 							  gd_cluster_off +
 							  res->sr_bit_offset +
 							  res->sr_bits);
-			mlog(0, "Checking %llu against %llu\n",
-			     (unsigned long long)blkoff,
-			     (unsigned long long)max_block);
+			trace_ocfs2_cluster_group_search_max_block(
+				(unsigned long long)blkoff,
+				(unsigned long long)max_block);
 			if (blkoff > max_block)
 				return -ENOSPC;
 		}
@@ -1588,9 +1584,9 @@ static int ocfs2_block_group_search(struct inode *inode,
 		if (!ret && max_block) {
 			blkoff = le64_to_cpu(bg->bg_blkno) +
 				res->sr_bit_offset + res->sr_bits;
-			mlog(0, "Checking %llu against %llu\n",
-			     (unsigned long long)blkoff,
-			     (unsigned long long)max_block);
+			trace_ocfs2_block_group_search_max_block(
+				(unsigned long long)blkoff,
+				(unsigned long long)max_block);
 			if (blkoff > max_block)
 				ret = -ENOSPC;
 		}
@@ -1756,9 +1752,9 @@ static int ocfs2_search_chain(struct ocfs2_alloc_context *ac,
 	struct ocfs2_group_desc *bg;
 
 	chain = ac->ac_chain;
-	mlog(0, "trying to alloc %u bits from chain %u, inode %llu\n",
-	     bits_wanted, chain,
-	     (unsigned long long)OCFS2_I(alloc_inode)->ip_blkno);
+	trace_ocfs2_search_chain_begin(
+		(unsigned long long)OCFS2_I(alloc_inode)->ip_blkno,
+		bits_wanted, chain);
 
 	status = ocfs2_read_group_descriptor(alloc_inode, fe,
 					     le64_to_cpu(cl->cl_recs[chain].c_blkno),
@@ -1799,8 +1795,8 @@ static int ocfs2_search_chain(struct ocfs2_alloc_context *ac,
 		goto bail;
 	}
 
-	mlog(0, "alloc succeeds: we give %u bits from block group %llu\n",
-	     res->sr_bits, (unsigned long long)le64_to_cpu(bg->bg_blkno));
+	trace_ocfs2_search_chain_succ(
+		(unsigned long long)le64_to_cpu(bg->bg_blkno), res->sr_bits);
 
 	res->sr_bg_blkno = le64_to_cpu(bg->bg_blkno);
 
@@ -1861,8 +1857,9 @@ static int ocfs2_search_chain(struct ocfs2_alloc_context *ac,
 		goto bail;
 	}
 
-	mlog(0, "Allocated %u bits from suballocator %llu\n", res->sr_bits,
-	     (unsigned long long)le64_to_cpu(fe->i_blkno));
+	trace_ocfs2_search_chain_end(
+			(unsigned long long)le64_to_cpu(fe->i_blkno),
+			res->sr_bits);
 
 out_loc_only:
 	*bits_left = le16_to_cpu(bg->bg_free_bits_count);
@@ -1870,7 +1867,8 @@ bail:
 	brelse(group_bh);
 	brelse(prev_group_bh);
 
-	mlog_exit(status);
+	if (status)
+		mlog_errno(status);
 	return status;
 }
 
@@ -1888,8 +1886,6 @@ static int ocfs2_claim_suballoc_bits(struct ocfs2_alloc_context *ac,
 	struct ocfs2_chain_list *cl;
 	struct ocfs2_dinode *fe;
 
-	mlog_entry_void();
-
 	BUG_ON(ac->ac_bits_given >= ac->ac_bits_wanted);
 	BUG_ON(bits_wanted > (ac->ac_bits_wanted - ac->ac_bits_given));
 	BUG_ON(!ac->ac_bh);
@@ -1945,8 +1941,7 @@ static int ocfs2_claim_suballoc_bits(struct ocfs2_alloc_context *ac,
 		goto bail;
 	}
 
-	mlog(0, "Search of victim chain %u came up with nothing, "
-	     "trying all chains now.\n", victim);
+	trace_ocfs2_claim_suballoc_bits(victim);
 
 	/* If we didn't pick a good victim, then just default to
 	 * searching each chain in order. Don't allow chain relinking
@@ -1984,7 +1979,8 @@ set_hint:
 	}
 
 bail:
-	mlog_exit(status);
+	if (status)
+		mlog_errno(status);
 	return status;
 }
 
@@ -2021,7 +2017,8 @@ int ocfs2_claim_metadata(handle_t *handle,
 	*num_bits = res.sr_bits;
 	status = 0;
 bail:
-	mlog_exit(status);
+	if (status)
+		mlog_errno(status);
 	return status;
 }
 
@@ -2172,8 +2169,8 @@ int ocfs2_claim_new_inode_at_loc(handle_t *handle,
 		goto out;
 	}
 
-	mlog(0, "Allocated %u bits from suballocator %llu\n", res->sr_bits,
-	     (unsigned long long)di_blkno);
+	trace_ocfs2_claim_new_inode_at_loc((unsigned long long)di_blkno,
+					   res->sr_bits);
 
 	atomic_inc(&OCFS2_SB(ac->ac_inode->i_sb)->alloc_stats.bg_allocs);
 
@@ -2201,8 +2198,6 @@ int ocfs2_claim_new_inode(handle_t *handle,
 	int status;
 	struct ocfs2_suballoc_result res;
 
-	mlog_entry_void();
-
 	BUG_ON(!ac);
 	BUG_ON(ac->ac_bits_given != 0);
 	BUG_ON(ac->ac_bits_wanted != 1);
@@ -2230,7 +2225,8 @@ int ocfs2_claim_new_inode(handle_t *handle,
 	ocfs2_save_inode_ac_group(dir, ac);
 	status = 0;
 bail:
-	mlog_exit(status);
+	if (status)
+		mlog_errno(status);
 	return status;
 }
 
@@ -2307,8 +2303,6 @@ int __ocfs2_claim_clusters(handle_t *handle,
 	struct ocfs2_suballoc_result res = { .sr_blkno = 0, };
 	struct ocfs2_super *osb = OCFS2_SB(ac->ac_inode->i_sb);
 
-	mlog_entry_void();
-
 	BUG_ON(ac->ac_bits_given >= ac->ac_bits_wanted);
 
 	BUG_ON(ac->ac_which != OCFS2_AC_USE_LOCAL
@@ -2363,7 +2357,8 @@ int __ocfs2_claim_clusters(handle_t *handle,
 	ac->ac_bits_given += *num_clusters;
 
 bail:
-	mlog_exit(status);
+	if (status)
+		mlog_errno(status);
 	return status;
 }
 
@@ -2392,13 +2387,11 @@ static int ocfs2_block_group_clear_bits(handle_t *handle,
 	unsigned int tmp;
 	struct ocfs2_group_desc *undo_bg = NULL;
 
-	mlog_entry_void();
-
 	/* The caller got this descriptor from
 	 * ocfs2_read_group_descriptor().  Any corruption is a code bug. */
 	BUG_ON(!OCFS2_IS_VALID_GROUP_DESC(bg));
 
-	mlog(0, "off = %u, num = %u\n", bit_off, num_bits);
+	trace_ocfs2_block_group_clear_bits(bit_off, num_bits);
 
 	BUG_ON(undo_fn && !ocfs2_is_cluster_bitmap(alloc_inode));
 	status = ocfs2_journal_access_gd(handle, INODE_CACHE(alloc_inode),
@@ -2463,19 +2456,18 @@ static int _ocfs2_free_suballoc_bits(handle_t *handle,
 	struct buffer_head *group_bh = NULL;
 	struct ocfs2_group_desc *group;
 
-	mlog_entry_void();
-
 	/* The alloc_bh comes from ocfs2_free_dinode() or
 	 * ocfs2_free_clusters().  The callers have all locked the
 	 * allocator and gotten alloc_bh from the lock call.  This
-	 * validates the dinode buffer.  Any corruption that has happended
+	 * validates the dinode buffer.  Any corruption that has happened
 	 * is a code bug. */
 	BUG_ON(!OCFS2_IS_VALID_DINODE(fe));
 	BUG_ON((count + start_bit) > ocfs2_bits_per_group(cl));
 
-	mlog(0, "%llu: freeing %u bits from group %llu, starting at %u\n",
-	     (unsigned long long)OCFS2_I(alloc_inode)->ip_blkno, count,
-	     (unsigned long long)bg_blkno, start_bit);
+	trace_ocfs2_free_suballoc_bits(
+		(unsigned long long)OCFS2_I(alloc_inode)->ip_blkno,
+		(unsigned long long)bg_blkno,
+		start_bit, count);
 
 	status = ocfs2_read_group_descriptor(alloc_inode, fe, bg_blkno,
 					     &group_bh);
@@ -2511,7 +2503,8 @@ static int _ocfs2_free_suballoc_bits(handle_t *handle,
 bail:
 	brelse(group_bh);
 
-	mlog_exit(status);
+	if (status)
+		mlog_errno(status);
 	return status;
 }
 
@@ -2556,11 +2549,8 @@ static int _ocfs2_free_clusters(handle_t *handle,
 
 	/* You can't ever have a contiguous set of clusters
 	 * bigger than a block group bitmap so we never have to worry
-	 * about looping on them. */
-
-	mlog_entry_void();
-
-	/* This is expensive. We can safely remove once this stuff has
+	 * about looping on them.
+	 * This is expensive. We can safely remove once this stuff has
 	 * gotten tested really well. */
 	BUG_ON(start_blk != ocfs2_clusters_to_blocks(bitmap_inode->i_sb, ocfs2_blocks_to_clusters(bitmap_inode->i_sb, start_blk)));
 
@@ -2569,10 +2559,9 @@ static int _ocfs2_free_clusters(handle_t *handle,
 	ocfs2_block_to_cluster_group(bitmap_inode, start_blk, &bg_blkno,
 				     &bg_start_bit);
 
-	mlog(0, "want to free %u clusters starting at block %llu\n",
-	     num_clusters, (unsigned long long)start_blk);
-	mlog(0, "bg_blkno = %llu, bg_start_bit = %u\n",
-	     (unsigned long long)bg_blkno, bg_start_bit);
+	trace_ocfs2_free_clusters((unsigned long long)bg_blkno,
+			(unsigned long long)start_blk,
+			bg_start_bit, num_clusters);
 
 	status = _ocfs2_free_suballoc_bits(handle, bitmap_inode, bitmap_bh,
 					   bg_start_bit, bg_blkno,
@@ -2586,7 +2575,8 @@ static int _ocfs2_free_clusters(handle_t *handle,
 					 num_clusters);
 
 out:
-	mlog_exit(status);
+	if (status)
+		mlog_errno(status);
 	return status;
 }
 
@@ -2756,7 +2746,7 @@ static int ocfs2_get_suballoc_slot_bit(struct ocfs2_super *osb, u64 blkno,
 	struct buffer_head *inode_bh = NULL;
 	struct ocfs2_dinode *inode_fe;
 
-	mlog_entry("blkno: %llu\n", (unsigned long long)blkno);
+	trace_ocfs2_get_suballoc_slot_bit((unsigned long long)blkno);
 
 	/* dirty read disk */
 	status = ocfs2_read_blocks_sync(osb, blkno, 1, &inode_bh);
@@ -2793,7 +2783,8 @@ static int ocfs2_get_suballoc_slot_bit(struct ocfs2_super *osb, u64 blkno,
 bail:
 	brelse(inode_bh);
 
-	mlog_exit(status);
+	if (status)
+		mlog_errno(status);
 	return status;
 }
 
@@ -2816,8 +2807,8 @@ static int ocfs2_test_suballoc_bit(struct ocfs2_super *osb,
 	u64 bg_blkno;
 	int status;
 
-	mlog_entry("blkno: %llu bit: %u\n", (unsigned long long)blkno,
-		   (unsigned int)bit);
+	trace_ocfs2_test_suballoc_bit((unsigned long long)blkno,
+				      (unsigned int)bit);
 
 	alloc_di = (struct ocfs2_dinode *)alloc_bh->b_data;
 	if ((bit + 1) > ocfs2_bits_per_group(&alloc_di->id2.i_chain)) {
@@ -2844,7 +2835,8 @@ static int ocfs2_test_suballoc_bit(struct ocfs2_super *osb,
 bail:
 	brelse(group_bh);
 
-	mlog_exit(status);
+	if (status)
+		mlog_errno(status);
 	return status;
 }
 
@@ -2869,7 +2861,7 @@ int ocfs2_test_inode_bit(struct ocfs2_super *osb, u64 blkno, int *res)
 	struct inode *inode_alloc_inode;
 	struct buffer_head *alloc_bh = NULL;
 
-	mlog_entry("blkno: %llu", (unsigned long long)blkno);
+	trace_ocfs2_test_inode_bit((unsigned long long)blkno);
 
 	status = ocfs2_get_suballoc_slot_bit(osb, blkno, &suballoc_slot,
 					     &group_blkno, &suballoc_bit);
@@ -2910,6 +2902,7 @@ int ocfs2_test_inode_bit(struct ocfs2_super *osb, u64 blkno, int *res)
 	iput(inode_alloc_inode);
 	brelse(alloc_bh);
 bail:
-	mlog_exit(status);
+	if (status)
+		mlog_errno(status);
 	return status;
 }
diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c
index 236ed1bdca2c..5a521c748859 100644
--- a/fs/ocfs2/super.c
+++ b/fs/ocfs2/super.c
@@ -42,7 +42,9 @@
 #include <linux/seq_file.h>
 #include <linux/quotaops.h>
 
-#define MLOG_MASK_PREFIX ML_SUPER
+#define CREATE_TRACE_POINTS
+#include "ocfs2_trace.h"
+
 #include <cluster/masklog.h>
 
 #include "ocfs2.h"
@@ -76,7 +78,7 @@ static struct kmem_cache *ocfs2_inode_cachep = NULL;
 struct kmem_cache *ocfs2_dquot_cachep;
 struct kmem_cache *ocfs2_qf_chunk_cachep;
 
-/* OCFS2 needs to schedule several differnt types of work which
+/* OCFS2 needs to schedule several different types of work which
  * require cluster locking, disk I/O, recovery waits, etc. Since these
  * types of work tend to be heavy we avoid using the kernel events
  * workqueue and schedule on our own. */
@@ -441,8 +443,6 @@ static int ocfs2_init_global_system_inodes(struct ocfs2_super *osb)
 	int status = 0;
 	int i;
 
-	mlog_entry_void();
-
 	new = ocfs2_iget(osb, osb->root_blkno, OCFS2_FI_FLAG_SYSFILE, 0);
 	if (IS_ERR(new)) {
 		status = PTR_ERR(new);
@@ -478,7 +478,8 @@ static int ocfs2_init_global_system_inodes(struct ocfs2_super *osb)
 	}
 
 bail:
-	mlog_exit(status);
+	if (status)
+		mlog_errno(status);
 	return status;
 }
 
@@ -488,8 +489,6 @@ static int ocfs2_init_local_system_inodes(struct ocfs2_super *osb)
 	int status = 0;
 	int i;
 
-	mlog_entry_void();
-
 	for (i = OCFS2_LAST_GLOBAL_SYSTEM_INODE + 1;
 	     i < NUM_SYSTEM_INODES;
 	     i++) {
@@ -508,7 +507,8 @@ static int ocfs2_init_local_system_inodes(struct ocfs2_super *osb)
 	}
 
 bail:
-	mlog_exit(status);
+	if (status)
+		mlog_errno(status);
 	return status;
 }
 
@@ -517,8 +517,6 @@ static void ocfs2_release_system_inodes(struct ocfs2_super *osb)
 	int i;
 	struct inode *inode;
 
-	mlog_entry_void();
-
 	for (i = 0; i < NUM_GLOBAL_SYSTEM_INODES; i++) {
 		inode = osb->global_system_inodes[i];
 		if (inode) {
@@ -540,7 +538,7 @@ static void ocfs2_release_system_inodes(struct ocfs2_super *osb)
 	}
 
 	if (!osb->local_system_inodes)
-		goto out;
+		return;
 
 	for (i = 0; i < NUM_LOCAL_SYSTEM_INODES * osb->max_slots; i++) {
 		if (osb->local_system_inodes[i]) {
@@ -551,9 +549,6 @@ static void ocfs2_release_system_inodes(struct ocfs2_super *osb)
 
 	kfree(osb->local_system_inodes);
 	osb->local_system_inodes = NULL;
-
-out:
-	mlog_exit(0);
 }
 
 /* We're allocating fs objects, use GFP_NOFS */
@@ -684,12 +679,9 @@ static int ocfs2_remount(struct super_block *sb, int *flags, char *data)
 		}
 
 		if (*flags & MS_RDONLY) {
-			mlog(0, "Going to ro mode.\n");
 			sb->s_flags |= MS_RDONLY;
 			osb->osb_flags |= OCFS2_OSB_SOFT_RO;
 		} else {
-			mlog(0, "Making ro filesystem writeable.\n");
-
 			if (osb->osb_flags & OCFS2_OSB_ERROR_FS) {
 				mlog(ML_ERROR, "Cannot remount RDWR "
 				     "filesystem due to previous errors.\n");
@@ -707,6 +699,7 @@ static int ocfs2_remount(struct super_block *sb, int *flags, char *data)
 			sb->s_flags &= ~MS_RDONLY;
 			osb->osb_flags &= ~OCFS2_OSB_SOFT_RO;
 		}
+		trace_ocfs2_remount(sb->s_flags, osb->osb_flags, *flags);
 unlock_osb:
 		spin_unlock(&osb->osb_lock);
 		/* Enable quota accounting after remounting RW */
@@ -1032,7 +1025,7 @@ static int ocfs2_fill_super(struct super_block *sb, void *data, int silent)
 	char nodestr[8];
 	struct ocfs2_blockcheck_stats stats;
 
-	mlog_entry("%p, %p, %i", sb, data, silent);
+	trace_ocfs2_fill_super(sb, data, silent);
 
 	if (!ocfs2_parse_options(sb, data, &parsed_options, 0)) {
 		status = -EINVAL;
@@ -1208,7 +1201,6 @@ static int ocfs2_fill_super(struct super_block *sb, void *data, int silent)
 			mlog_errno(status);
 			atomic_set(&osb->vol_state, VOLUME_DISABLED);
 			wake_up(&osb->osb_mount_event);
-			mlog_exit(status);
 			return status;
 		}
 	}
@@ -1222,7 +1214,6 @@ static int ocfs2_fill_super(struct super_block *sb, void *data, int silent)
 	/* Start this when the mount is almost sure of being successful */
 	ocfs2_orphan_scan_start(osb);
 
-	mlog_exit(status);
 	return status;
 
 read_super_error:
@@ -1237,7 +1228,8 @@ read_super_error:
 		ocfs2_dismount_volume(sb, 1);
 	}
 
-	mlog_exit(status);
+	if (status)
+		mlog_errno(status);
 	return status;
 }
 
@@ -1320,8 +1312,7 @@ static int ocfs2_parse_options(struct super_block *sb,
 	char *p;
 	u32 tmp;
 
-	mlog_entry("remount: %d, options: \"%s\"\n", is_remount,
-		   options ? options : "(none)");
+	trace_ocfs2_parse_options(is_remount, options ? options : "(none)");
 
 	mopt->commit_interval = 0;
 	mopt->mount_opt = OCFS2_MOUNT_NOINTR;
@@ -1538,7 +1529,6 @@ static int ocfs2_parse_options(struct super_block *sb,
 	status = 1;
 
 bail:
-	mlog_exit(status);
 	return status;
 }
 
@@ -1629,8 +1619,6 @@ static int __init ocfs2_init(void)
 {
 	int status;
 
-	mlog_entry_void();
-
 	ocfs2_print_version();
 
 	status = init_ocfs2_uptodate_cache();
@@ -1664,10 +1652,9 @@ leave:
 	if (status < 0) {
 		ocfs2_free_mem_caches();
 		exit_ocfs2_uptodate_cache();
+		mlog_errno(status);
 	}
 
-	mlog_exit(status);
-
 	if (status >= 0) {
 		return register_filesystem(&ocfs2_fs_type);
 	} else
@@ -1676,8 +1663,6 @@ leave:
 
 static void __exit ocfs2_exit(void)
 {
-	mlog_entry_void();
-
 	if (ocfs2_wq) {
 		flush_workqueue(ocfs2_wq);
 		destroy_workqueue(ocfs2_wq);
@@ -1692,18 +1677,14 @@ static void __exit ocfs2_exit(void)
 	unregister_filesystem(&ocfs2_fs_type);
 
 	exit_ocfs2_uptodate_cache();
-
-	mlog_exit_void();
 }
 
 static void ocfs2_put_super(struct super_block *sb)
 {
-	mlog_entry("(0x%p)\n", sb);
+	trace_ocfs2_put_super(sb);
 
 	ocfs2_sync_blockdev(sb);
 	ocfs2_dismount_volume(sb, 0);
-
-	mlog_exit_void();
 }
 
 static int ocfs2_statfs(struct dentry *dentry, struct kstatfs *buf)
@@ -1715,7 +1696,7 @@ static int ocfs2_statfs(struct dentry *dentry, struct kstatfs *buf)
 	struct buffer_head *bh = NULL;
 	struct inode *inode = NULL;
 
-	mlog_entry("(%p, %p)\n", dentry->d_sb, buf);
+	trace_ocfs2_statfs(dentry->d_sb, buf);
 
 	osb = OCFS2_SB(dentry->d_sb);
 
@@ -1762,7 +1743,8 @@ bail:
 	if (inode)
 		iput(inode);
 
-	mlog_exit(status);
+	if (status)
+		mlog_errno(status);
 
 	return status;
 }
@@ -1882,8 +1864,6 @@ static int ocfs2_mount_volume(struct super_block *sb)
 	int unlock_super = 0;
 	struct ocfs2_super *osb = OCFS2_SB(sb);
 
-	mlog_entry_void();
-
 	if (ocfs2_is_hard_readonly(osb))
 		goto leave;
 
@@ -1928,7 +1908,6 @@ leave:
 	if (unlock_super)
 		ocfs2_super_unlock(osb, 1);
 
-	mlog_exit(status);
 	return status;
 }
 
@@ -1938,7 +1917,7 @@ static void ocfs2_dismount_volume(struct super_block *sb, int mnt_err)
 	struct ocfs2_super *osb = NULL;
 	char nodestr[8];
 
-	mlog_entry("(0x%p)\n", sb);
+	trace_ocfs2_dismount_volume(sb);
 
 	BUG_ON(!sb);
 	osb = OCFS2_SB(sb);
@@ -2090,8 +2069,6 @@ static int ocfs2_initialize_super(struct super_block *sb,
 	struct ocfs2_super *osb;
 	u64 total_blocks;
 
-	mlog_entry_void();
-
 	osb = kzalloc(sizeof(struct ocfs2_super), GFP_KERNEL);
 	if (!osb) {
 		status = -ENOMEM;
@@ -2155,7 +2132,6 @@ static int ocfs2_initialize_super(struct super_block *sb,
 		status = -EINVAL;
 		goto bail;
 	}
-	mlog(0, "max_slots for this device: %u\n", osb->max_slots);
 
 	ocfs2_orphan_scan_init(osb);
 
@@ -2294,7 +2270,6 @@ static int ocfs2_initialize_super(struct super_block *sb,
 	osb->s_clustersize_bits =
 		le32_to_cpu(di->id2.i_super.s_clustersize_bits);
 	osb->s_clustersize = 1 << osb->s_clustersize_bits;
-	mlog(0, "clusterbits=%d\n", osb->s_clustersize_bits);
 
 	if (osb->s_clustersize < OCFS2_MIN_CLUSTERSIZE ||
 	    osb->s_clustersize > OCFS2_MAX_CLUSTERSIZE) {
@@ -2333,11 +2308,10 @@ static int ocfs2_initialize_super(struct super_block *sb,
 		le64_to_cpu(di->id2.i_super.s_first_cluster_group);
 	osb->fs_generation = le32_to_cpu(di->i_fs_generation);
 	osb->uuid_hash = le32_to_cpu(di->id2.i_super.s_uuid_hash);
-	mlog(0, "vol_label: %s\n", osb->vol_label);
-	mlog(0, "uuid: %s\n", osb->uuid_str);
-	mlog(0, "root_blkno=%llu, system_dir_blkno=%llu\n",
-	     (unsigned long long)osb->root_blkno,
-	     (unsigned long long)osb->system_dir_blkno);
+	trace_ocfs2_initialize_super(osb->vol_label, osb->uuid_str,
+				     (unsigned long long)osb->root_blkno,
+				     (unsigned long long)osb->system_dir_blkno,
+				     osb->s_clustersize_bits);
 
 	osb->osb_dlm_debug = ocfs2_new_dlm_debug();
 	if (!osb->osb_dlm_debug) {
@@ -2380,7 +2354,6 @@ static int ocfs2_initialize_super(struct super_block *sb,
 	}
 
 bail:
-	mlog_exit(status);
 	return status;
 }
 
@@ -2396,8 +2369,6 @@ static int ocfs2_verify_volume(struct ocfs2_dinode *di,
 {
 	int status = -EAGAIN;
 
-	mlog_entry_void();
-
 	if (memcmp(di->i_signature, OCFS2_SUPER_BLOCK_SIGNATURE,
 		   strlen(OCFS2_SUPER_BLOCK_SIGNATURE)) == 0) {
 		/* We have to do a raw check of the feature here */
@@ -2452,7 +2423,8 @@ static int ocfs2_verify_volume(struct ocfs2_dinode *di,
 	}
 
 out:
-	mlog_exit(status);
+	if (status && status != -EAGAIN)
+		mlog_errno(status);
 	return status;
 }
 
@@ -2465,8 +2437,6 @@ static int ocfs2_check_volume(struct ocfs2_super *osb)
 						  * recover
 						  * ourselves. */
 
-	mlog_entry_void();
-
 	/* Init our journal object. */
 	status = ocfs2_journal_init(osb->journal, &dirty);
 	if (status < 0) {
@@ -2516,8 +2486,6 @@ static int ocfs2_check_volume(struct ocfs2_super *osb)
 		 * ourselves as mounted. */
 	}
 
-	mlog(0, "Journal loaded.\n");
-
 	status = ocfs2_load_local_alloc(osb);
 	if (status < 0) {
 		mlog_errno(status);
@@ -2549,7 +2517,8 @@ finally:
 	if (local_alloc)
 		kfree(local_alloc);
 
-	mlog_exit(status);
+	if (status)
+		mlog_errno(status);
 	return status;
 }
 
@@ -2561,8 +2530,6 @@ finally:
  */
 static void ocfs2_delete_osb(struct ocfs2_super *osb)
 {
-	mlog_entry_void();
-
 	/* This function assumes that the caller has the main osb resource */
 
 	ocfs2_free_slot_info(osb);
@@ -2580,8 +2547,6 @@ static void ocfs2_delete_osb(struct ocfs2_super *osb)
 	kfree(osb->uuid_str);
 	ocfs2_put_dlm_debug(osb->osb_dlm_debug);
 	memset(osb, 0, sizeof(struct ocfs2_super));
-
-	mlog_exit_void();
 }
 
 /* Put OCFS2 into a readonly state, or (if the user specifies it),
diff --git a/fs/ocfs2/symlink.c b/fs/ocfs2/symlink.c
index 9975457c981f..5d22872e2bb3 100644
--- a/fs/ocfs2/symlink.c
+++ b/fs/ocfs2/symlink.c
@@ -40,7 +40,6 @@
 #include <linux/pagemap.h>
 #include <linux/namei.h>
 
-#define MLOG_MASK_PREFIX ML_NAMEI
 #include <cluster/masklog.h>
 
 #include "ocfs2.h"
@@ -62,8 +61,6 @@ static char *ocfs2_fast_symlink_getlink(struct inode *inode,
 	char *link = NULL;
 	struct ocfs2_dinode *fe;
 
-	mlog_entry_void();
-
 	status = ocfs2_read_inode_block(inode, bh);
 	if (status < 0) {
 		mlog_errno(status);
@@ -74,7 +71,6 @@ static char *ocfs2_fast_symlink_getlink(struct inode *inode,
 	fe = (struct ocfs2_dinode *) (*bh)->b_data;
 	link = (char *) fe->id2.i_symlink;
 bail:
-	mlog_exit(status);
 
 	return link;
 }
@@ -88,8 +84,6 @@ static int ocfs2_readlink(struct dentry *dentry,
 	struct buffer_head *bh = NULL;
 	struct inode *inode = dentry->d_inode;
 
-	mlog_entry_void();
-
 	link = ocfs2_fast_symlink_getlink(inode, &bh);
 	if (IS_ERR(link)) {
 		ret = PTR_ERR(link);
@@ -104,7 +98,8 @@ static int ocfs2_readlink(struct dentry *dentry,
 
 	brelse(bh);
 out:
-	mlog_exit(ret);
+	if (ret < 0)
+		mlog_errno(ret);
 	return ret;
 }
 
@@ -117,8 +112,6 @@ static void *ocfs2_fast_follow_link(struct dentry *dentry,
 	struct inode *inode = dentry->d_inode;
 	struct buffer_head *bh = NULL;
 
-	mlog_entry_void();
-
 	BUG_ON(!ocfs2_inode_is_fast_symlink(inode));
 	target = ocfs2_fast_symlink_getlink(inode, &bh);
 	if (IS_ERR(target)) {
@@ -142,7 +135,8 @@ bail:
 	nd_set_link(nd, status ? ERR_PTR(status) : link);
 	brelse(bh);
 
-	mlog_exit(status);
+	if (status)
+		mlog_errno(status);
 	return NULL;
 }
 
diff --git a/fs/ocfs2/sysfile.c b/fs/ocfs2/sysfile.c
index 902efb23b6a6..3d635f4bbb20 100644
--- a/fs/ocfs2/sysfile.c
+++ b/fs/ocfs2/sysfile.c
@@ -27,7 +27,6 @@
 #include <linux/types.h>
 #include <linux/highmem.h>
 
-#define MLOG_MASK_PREFIX ML_INODE
 #include <cluster/masklog.h>
 
 #include "ocfs2.h"
diff --git a/fs/ocfs2/uptodate.c b/fs/ocfs2/uptodate.c
index a0a120e82b97..52eaf33d346f 100644
--- a/fs/ocfs2/uptodate.c
+++ b/fs/ocfs2/uptodate.c
@@ -54,14 +54,13 @@
 #include <linux/buffer_head.h>
 #include <linux/rbtree.h>
 
-#define MLOG_MASK_PREFIX ML_UPTODATE
-
 #include <cluster/masklog.h>
 
 #include "ocfs2.h"
 
 #include "inode.h"
 #include "uptodate.h"
+#include "ocfs2_trace.h"
 
 struct ocfs2_meta_cache_item {
 	struct rb_node	c_node;
@@ -152,8 +151,8 @@ static unsigned int ocfs2_purge_copied_metadata_tree(struct rb_root *root)
 	while ((node = rb_last(root)) != NULL) {
 		item = rb_entry(node, struct ocfs2_meta_cache_item, c_node);
 
-		mlog(0, "Purge item %llu\n",
-		     (unsigned long long) item->c_block);
+		trace_ocfs2_purge_copied_metadata_tree(
+					(unsigned long long) item->c_block);
 
 		rb_erase(&item->c_node, root);
 		kmem_cache_free(ocfs2_uptodate_cachep, item);
@@ -180,9 +179,9 @@ void ocfs2_metadata_cache_purge(struct ocfs2_caching_info *ci)
 	tree = !(ci->ci_flags & OCFS2_CACHE_FL_INLINE);
 	to_purge = ci->ci_num_cached;
 
-	mlog(0, "Purge %u %s items from Owner %llu\n", to_purge,
-	     tree ? "array" : "tree",
-	     (unsigned long long)ocfs2_metadata_cache_owner(ci));
+	trace_ocfs2_metadata_cache_purge(
+		(unsigned long long)ocfs2_metadata_cache_owner(ci),
+		to_purge, tree);
 
 	/* If we're a tree, save off the root so that we can safely
 	 * initialize the cache. We do the work to free tree members
@@ -249,10 +248,10 @@ static int ocfs2_buffer_cached(struct ocfs2_caching_info *ci,
 
 	ocfs2_metadata_cache_lock(ci);
 
-	mlog(0, "Owner %llu, query block %llu (inline = %u)\n",
-	     (unsigned long long)ocfs2_metadata_cache_owner(ci),
-	     (unsigned long long) bh->b_blocknr,
-	     !!(ci->ci_flags & OCFS2_CACHE_FL_INLINE));
+	trace_ocfs2_buffer_cached_begin(
+		(unsigned long long)ocfs2_metadata_cache_owner(ci),
+		(unsigned long long) bh->b_blocknr,
+		!!(ci->ci_flags & OCFS2_CACHE_FL_INLINE));
 
 	if (ci->ci_flags & OCFS2_CACHE_FL_INLINE)
 		index = ocfs2_search_cache_array(ci, bh->b_blocknr);
@@ -261,7 +260,7 @@ static int ocfs2_buffer_cached(struct ocfs2_caching_info *ci,
 
 	ocfs2_metadata_cache_unlock(ci);
 
-	mlog(0, "index = %d, item = %p\n", index, item);
+	trace_ocfs2_buffer_cached_end(index, item);
 
 	return (index != -1) || (item != NULL);
 }
@@ -306,8 +305,9 @@ static void ocfs2_append_cache_array(struct ocfs2_caching_info *ci,
 {
 	BUG_ON(ci->ci_num_cached >= OCFS2_CACHE_INFO_MAX_ARRAY);
 
-	mlog(0, "block %llu takes position %u\n", (unsigned long long) block,
-	     ci->ci_num_cached);
+	trace_ocfs2_append_cache_array(
+		(unsigned long long)ocfs2_metadata_cache_owner(ci),
+		(unsigned long long)block, ci->ci_num_cached);
 
 	ci->ci_cache.ci_array[ci->ci_num_cached] = block;
 	ci->ci_num_cached++;
@@ -324,8 +324,9 @@ static void __ocfs2_insert_cache_tree(struct ocfs2_caching_info *ci,
 	struct rb_node **p = &ci->ci_cache.ci_tree.rb_node;
 	struct ocfs2_meta_cache_item *tmp;
 
-	mlog(0, "Insert block %llu num = %u\n", (unsigned long long) block,
-	     ci->ci_num_cached);
+	trace_ocfs2_insert_cache_tree(
+		(unsigned long long)ocfs2_metadata_cache_owner(ci),
+		(unsigned long long)block, ci->ci_num_cached);
 
 	while(*p) {
 		parent = *p;
@@ -389,9 +390,9 @@ static void ocfs2_expand_cache(struct ocfs2_caching_info *ci,
 		tree[i] = NULL;
 	}
 
-	mlog(0, "Expanded %llu to a tree cache: flags 0x%x, num = %u\n",
-	     (unsigned long long)ocfs2_metadata_cache_owner(ci),
-	     ci->ci_flags, ci->ci_num_cached);
+	trace_ocfs2_expand_cache(
+		(unsigned long long)ocfs2_metadata_cache_owner(ci),
+		ci->ci_flags, ci->ci_num_cached);
 }
 
 /* Slow path function - memory allocation is necessary. See the
@@ -405,9 +406,9 @@ static void __ocfs2_set_buffer_uptodate(struct ocfs2_caching_info *ci,
 	struct ocfs2_meta_cache_item *tree[OCFS2_CACHE_INFO_MAX_ARRAY] =
 		{ NULL, };
 
-	mlog(0, "Owner %llu, block %llu, expand = %d\n",
-	     (unsigned long long)ocfs2_metadata_cache_owner(ci),
-	     (unsigned long long)block, expand_tree);
+	trace_ocfs2_set_buffer_uptodate(
+		(unsigned long long)ocfs2_metadata_cache_owner(ci),
+		(unsigned long long)block, expand_tree);
 
 	new = kmem_cache_alloc(ocfs2_uptodate_cachep, GFP_NOFS);
 	if (!new) {
@@ -433,7 +434,6 @@ static void __ocfs2_set_buffer_uptodate(struct ocfs2_caching_info *ci,
 
 	ocfs2_metadata_cache_lock(ci);
 	if (ocfs2_insert_can_use_array(ci)) {
-		mlog(0, "Someone cleared the tree underneath us\n");
 		/* Ok, items were removed from the cache in between
 		 * locks. Detect this and revert back to the fast path */
 		ocfs2_append_cache_array(ci, block);
@@ -490,9 +490,9 @@ void ocfs2_set_buffer_uptodate(struct ocfs2_caching_info *ci,
 	if (ocfs2_buffer_cached(ci, bh))
 		return;
 
-	mlog(0, "Owner %llu, inserting block %llu\n",
-	     (unsigned long long)ocfs2_metadata_cache_owner(ci),
-	     (unsigned long long)bh->b_blocknr);
+	trace_ocfs2_set_buffer_uptodate_begin(
+		(unsigned long long)ocfs2_metadata_cache_owner(ci),
+		(unsigned long long)bh->b_blocknr);
 
 	/* No need to recheck under spinlock - insertion is guarded by
 	 * co_io_lock() */
@@ -542,8 +542,9 @@ static void ocfs2_remove_metadata_array(struct ocfs2_caching_info *ci,
 	BUG_ON(index >= ci->ci_num_cached);
 	BUG_ON(!ci->ci_num_cached);
 
-	mlog(0, "remove index %d (num_cached = %u\n", index,
-	     ci->ci_num_cached);
+	trace_ocfs2_remove_metadata_array(
+		(unsigned long long)ocfs2_metadata_cache_owner(ci),
+		index, ci->ci_num_cached);
 
 	ci->ci_num_cached--;
 
@@ -559,8 +560,9 @@ static void ocfs2_remove_metadata_array(struct ocfs2_caching_info *ci,
 static void ocfs2_remove_metadata_tree(struct ocfs2_caching_info *ci,
 				       struct ocfs2_meta_cache_item *item)
 {
-	mlog(0, "remove block %llu from tree\n",
-	     (unsigned long long) item->c_block);
+	trace_ocfs2_remove_metadata_tree(
+		(unsigned long long)ocfs2_metadata_cache_owner(ci),
+		(unsigned long long)item->c_block);
 
 	rb_erase(&item->c_node, &ci->ci_cache.ci_tree);
 	ci->ci_num_cached--;
@@ -573,10 +575,10 @@ static void ocfs2_remove_block_from_cache(struct ocfs2_caching_info *ci,
 	struct ocfs2_meta_cache_item *item = NULL;
 
 	ocfs2_metadata_cache_lock(ci);
-	mlog(0, "Owner %llu, remove %llu, items = %u, array = %u\n",
-	     (unsigned long long)ocfs2_metadata_cache_owner(ci),
-	     (unsigned long long) block, ci->ci_num_cached,
-	     ci->ci_flags & OCFS2_CACHE_FL_INLINE);
+	trace_ocfs2_remove_block_from_cache(
+		(unsigned long long)ocfs2_metadata_cache_owner(ci),
+		(unsigned long long) block, ci->ci_num_cached,
+		ci->ci_flags);
 
 	if (ci->ci_flags & OCFS2_CACHE_FL_INLINE) {
 		index = ocfs2_search_cache_array(ci, block);
@@ -626,9 +628,6 @@ int __init init_ocfs2_uptodate_cache(void)
 	if (!ocfs2_uptodate_cachep)
 		return -ENOMEM;
 
-	mlog(0, "%u inlined cache items per inode.\n",
-	     OCFS2_CACHE_INFO_MAX_ARRAY);
-
 	return 0;
 }
 
diff --git a/fs/ocfs2/xattr.c b/fs/ocfs2/xattr.c
index 6bb602486c6b..81ecf9c0bf0a 100644
--- a/fs/ocfs2/xattr.c
+++ b/fs/ocfs2/xattr.c
@@ -37,7 +37,6 @@
 #include <linux/string.h>
 #include <linux/security.h>
 
-#define MLOG_MASK_PREFIX ML_XATTR
 #include <cluster/masklog.h>
 
 #include "ocfs2.h"
@@ -57,6 +56,7 @@
 #include "xattr.h"
 #include "refcounttree.h"
 #include "acl.h"
+#include "ocfs2_trace.h"
 
 struct ocfs2_xattr_def_value_root {
 	struct ocfs2_xattr_value_root	xv;
@@ -474,8 +474,7 @@ static int ocfs2_validate_xattr_block(struct super_block *sb,
 	struct ocfs2_xattr_block *xb =
 		(struct ocfs2_xattr_block *)bh->b_data;
 
-	mlog(0, "Validating xattr block %llu\n",
-	     (unsigned long long)bh->b_blocknr);
+	trace_ocfs2_validate_xattr_block((unsigned long long)bh->b_blocknr);
 
 	BUG_ON(!buffer_uptodate(bh));
 
@@ -715,11 +714,11 @@ static int ocfs2_xattr_extend_allocation(struct inode *inode,
 	u32 prev_clusters, logical_start = le32_to_cpu(vb->vb_xv->xr_clusters);
 	struct ocfs2_extent_tree et;
 
-	mlog(0, "(clusters_to_add for xattr= %u)\n", clusters_to_add);
-
 	ocfs2_init_xattr_value_extent_tree(&et, INODE_CACHE(inode), vb);
 
 	while (clusters_to_add) {
+		trace_ocfs2_xattr_extend_allocation(clusters_to_add);
+
 		status = vb->vb_access(handle, INODE_CACHE(inode), vb->vb_bh,
 				       OCFS2_JOURNAL_ACCESS_WRITE);
 		if (status < 0) {
@@ -754,8 +753,6 @@ static int ocfs2_xattr_extend_allocation(struct inode *inode,
 			 */
 			BUG_ON(why == RESTART_META);
 
-			mlog(0, "restarting xattr value extension for %u"
-			     " clusters,.\n", clusters_to_add);
 			credits = ocfs2_calc_extend_credits(inode->i_sb,
 							    &vb->vb_xv->xr_list,
 							    clusters_to_add);
@@ -3246,8 +3243,8 @@ static int ocfs2_init_xattr_set_ctxt(struct inode *inode,
 	}
 
 	meta_add += extra_meta;
-	mlog(0, "Set xattr %s, reserve meta blocks = %d, clusters = %d, "
-	     "credits = %d\n", xi->xi_name, meta_add, clusters_add, *credits);
+	trace_ocfs2_init_xattr_set_ctxt(xi->xi_name, meta_add,
+					clusters_add, *credits);
 
 	if (meta_add) {
 		ret = ocfs2_reserve_new_metadata_blocks(osb, meta_add,
@@ -3557,7 +3554,7 @@ int ocfs2_xattr_set(struct inode *inode,
 	down_write(&OCFS2_I(inode)->ip_xattr_sem);
 	/*
 	 * Scan inode and external block to find the same name
-	 * extended attribute and collect search infomation.
+	 * extended attribute and collect search information.
 	 */
 	ret = ocfs2_xattr_ibody_find(inode, name_index, name, &xis);
 	if (ret)
@@ -3581,7 +3578,7 @@ int ocfs2_xattr_set(struct inode *inode,
 			goto cleanup;
 	}
 
-	/* Check whether the value is refcounted and do some prepartion. */
+	/* Check whether the value is refcounted and do some preparation. */
 	if (OCFS2_I(inode)->ip_dyn_features & OCFS2_HAS_REFCOUNT_FL &&
 	    (!xis.not_found || !xbs.not_found)) {
 		ret = ocfs2_prepare_refcount_xattr(inode, di, &xi,
@@ -3887,8 +3884,10 @@ static int ocfs2_xattr_bucket_find(struct inode *inode,
 
 	if (found) {
 		xs->here = &xs->header->xh_entries[index];
-		mlog(0, "find xattr %s in bucket %llu, entry = %u\n", name,
-		     (unsigned long long)bucket_blkno(xs->bucket), index);
+		trace_ocfs2_xattr_bucket_find(OCFS2_I(inode)->ip_blkno,
+			name, name_index, name_hash,
+			(unsigned long long)bucket_blkno(xs->bucket),
+			index);
 	} else
 		ret = -ENODATA;
 
@@ -3915,8 +3914,10 @@ static int ocfs2_xattr_index_block_find(struct inode *inode,
 	if (le16_to_cpu(el->l_next_free_rec) == 0)
 		return -ENODATA;
 
-	mlog(0, "find xattr %s, hash = %u, index = %d in xattr tree\n",
-	     name, name_hash, name_index);
+	trace_ocfs2_xattr_index_block_find(OCFS2_I(inode)->ip_blkno,
+					name, name_index, name_hash,
+					(unsigned long long)root_bh->b_blocknr,
+					-1);
 
 	ret = ocfs2_xattr_get_rec(inode, name_hash, &p_blkno, &first_hash,
 				  &num_clusters, el);
@@ -3927,9 +3928,10 @@ static int ocfs2_xattr_index_block_find(struct inode *inode,
 
 	BUG_ON(p_blkno == 0 || num_clusters == 0 || first_hash > name_hash);
 
-	mlog(0, "find xattr extent rec %u clusters from %llu, the first hash "
-	     "in the rec is %u\n", num_clusters, (unsigned long long)p_blkno,
-	     first_hash);
+	trace_ocfs2_xattr_index_block_find_rec(OCFS2_I(inode)->ip_blkno,
+					name, name_index, first_hash,
+					(unsigned long long)p_blkno,
+					num_clusters);
 
 	ret = ocfs2_xattr_bucket_find(inode, name_index, name, name_hash,
 				      p_blkno, first_hash, num_clusters, xs);
@@ -3955,8 +3957,9 @@ static int ocfs2_iterate_xattr_buckets(struct inode *inode,
 		return -ENOMEM;
 	}
 
-	mlog(0, "iterating xattr buckets in %u clusters starting from %llu\n",
-	     clusters, (unsigned long long)blkno);
+	trace_ocfs2_iterate_xattr_buckets(
+		(unsigned long long)OCFS2_I(inode)->ip_blkno,
+		(unsigned long long)blkno, clusters);
 
 	for (i = 0; i < num_buckets; i++, blkno += bucket->bu_blocks) {
 		ret = ocfs2_read_xattr_bucket(bucket, blkno);
@@ -3972,8 +3975,7 @@ static int ocfs2_iterate_xattr_buckets(struct inode *inode,
 		if (i == 0)
 			num_buckets = le16_to_cpu(bucket_xh(bucket)->xh_num_buckets);
 
-		mlog(0, "iterating xattr bucket %llu, first hash %u\n",
-		     (unsigned long long)blkno,
+		trace_ocfs2_iterate_xattr_bucket((unsigned long long)blkno,
 		     le32_to_cpu(bucket_xh(bucket)->xh_entries[0].xe_name_hash));
 		if (func) {
 			ret = func(inode, bucket, para);
@@ -4173,9 +4175,9 @@ static void ocfs2_cp_xattr_block_to_bucket(struct inode *inode,
 	char *src = xb_bh->b_data;
 	char *target = bucket_block(bucket, blks - 1);
 
-	mlog(0, "cp xattr from block %llu to bucket %llu\n",
-	     (unsigned long long)xb_bh->b_blocknr,
-	     (unsigned long long)bucket_blkno(bucket));
+	trace_ocfs2_cp_xattr_block_to_bucket_begin(
+				(unsigned long long)xb_bh->b_blocknr,
+				(unsigned long long)bucket_blkno(bucket));
 
 	for (i = 0; i < blks; i++)
 		memset(bucket_block(bucket, i), 0, blocksize);
@@ -4211,8 +4213,7 @@ static void ocfs2_cp_xattr_block_to_bucket(struct inode *inode,
 	for (i = 0; i < count; i++)
 		le16_add_cpu(&xh->xh_entries[i].xe_name_offset, off_change);
 
-	mlog(0, "copy entry: start = %u, size = %u, offset_change = %u\n",
-	     offset, size, off_change);
+	trace_ocfs2_cp_xattr_block_to_bucket_end(offset, size, off_change);
 
 	sort(target + offset, count, sizeof(struct ocfs2_xattr_entry),
 	     cmp_xe, swap_xe);
@@ -4261,8 +4262,8 @@ static int ocfs2_xattr_create_index_block(struct inode *inode,
 	struct ocfs2_xattr_tree_root *xr;
 	u16 xb_flags = le16_to_cpu(xb->xb_flags);
 
-	mlog(0, "create xattr index block for %llu\n",
-	     (unsigned long long)xb_bh->b_blocknr);
+	trace_ocfs2_xattr_create_index_block_begin(
+				(unsigned long long)xb_bh->b_blocknr);
 
 	BUG_ON(xb_flags & OCFS2_XATTR_INDEXED);
 	BUG_ON(!xs->bucket);
@@ -4295,8 +4296,7 @@ static int ocfs2_xattr_create_index_block(struct inode *inode,
 	 */
 	blkno = ocfs2_clusters_to_blocks(inode->i_sb, bit_off);
 
-	mlog(0, "allocate 1 cluster from %llu to xattr block\n",
-	     (unsigned long long)blkno);
+	trace_ocfs2_xattr_create_index_block((unsigned long long)blkno);
 
 	ret = ocfs2_init_xattr_bucket(xs->bucket, blkno);
 	if (ret) {
@@ -4400,8 +4400,7 @@ static int ocfs2_defrag_xattr_bucket(struct inode *inode,
 	entries = (char *)xh->xh_entries;
 	xh_free_start = le16_to_cpu(xh->xh_free_start);
 
-	mlog(0, "adjust xattr bucket in %llu, count = %u, "
-	     "xh_free_start = %u, xh_name_value_len = %u.\n",
+	trace_ocfs2_defrag_xattr_bucket(
 	     (unsigned long long)blkno, le16_to_cpu(xh->xh_count),
 	     xh_free_start, le16_to_cpu(xh->xh_name_value_len));
 
@@ -4503,8 +4502,9 @@ static int ocfs2_mv_xattr_bucket_cross_cluster(struct inode *inode,
 	BUG_ON(le16_to_cpu(bucket_xh(first)->xh_num_buckets) < num_buckets);
 	BUG_ON(OCFS2_XATTR_BUCKET_SIZE == OCFS2_SB(sb)->s_clustersize);
 
-	mlog(0, "move half of xattrs in cluster %llu to %llu\n",
-	     (unsigned long long)last_cluster_blkno, (unsigned long long)new_blkno);
+	trace_ocfs2_mv_xattr_bucket_cross_cluster(
+				(unsigned long long)last_cluster_blkno,
+				(unsigned long long)new_blkno);
 
 	ret = ocfs2_mv_xattr_buckets(inode, handle, bucket_blkno(first),
 				     last_cluster_blkno, new_blkno,
@@ -4614,8 +4614,8 @@ static int ocfs2_divide_xattr_bucket(struct inode *inode,
 	struct ocfs2_xattr_entry *xe;
 	int blocksize = inode->i_sb->s_blocksize;
 
-	mlog(0, "move some of xattrs from bucket %llu to %llu\n",
-	     (unsigned long long)blk, (unsigned long long)new_blk);
+	trace_ocfs2_divide_xattr_bucket_begin((unsigned long long)blk,
+					      (unsigned long long)new_blk);
 
 	s_bucket = ocfs2_xattr_bucket_new(inode);
 	t_bucket = ocfs2_xattr_bucket_new(inode);
@@ -4714,9 +4714,9 @@ static int ocfs2_divide_xattr_bucket(struct inode *inode,
 	 */
 	xe = &xh->xh_entries[start];
 	len = sizeof(struct ocfs2_xattr_entry) * (count - start);
-	mlog(0, "mv xattr entry len %d from %d to %d\n", len,
-	     (int)((char *)xe - (char *)xh),
-	     (int)((char *)xh->xh_entries - (char *)xh));
+	trace_ocfs2_divide_xattr_bucket_move(len,
+			(int)((char *)xe - (char *)xh),
+			(int)((char *)xh->xh_entries - (char *)xh));
 	memmove((char *)xh->xh_entries, (char *)xe, len);
 	xe = &xh->xh_entries[count - start];
 	len = sizeof(struct ocfs2_xattr_entry) * start;
@@ -4788,9 +4788,9 @@ static int ocfs2_cp_xattr_bucket(struct inode *inode,
 
 	BUG_ON(s_blkno == t_blkno);
 
-	mlog(0, "cp bucket %llu to %llu, target is %d\n",
-	     (unsigned long long)s_blkno, (unsigned long long)t_blkno,
-	     t_is_new);
+	trace_ocfs2_cp_xattr_bucket((unsigned long long)s_blkno,
+				    (unsigned long long)t_blkno,
+				    t_is_new);
 
 	s_bucket = ocfs2_xattr_bucket_new(inode);
 	t_bucket = ocfs2_xattr_bucket_new(inode);
@@ -4862,8 +4862,8 @@ static int ocfs2_mv_xattr_buckets(struct inode *inode, handle_t *handle,
 	int num_buckets = ocfs2_xattr_buckets_per_cluster(osb);
 	struct ocfs2_xattr_bucket *old_first, *new_first;
 
-	mlog(0, "mv xattrs from cluster %llu to %llu\n",
-	     (unsigned long long)last_blk, (unsigned long long)to_blk);
+	trace_ocfs2_mv_xattr_buckets((unsigned long long)last_blk,
+				     (unsigned long long)to_blk);
 
 	BUG_ON(start_bucket >= num_buckets);
 	if (start_bucket) {
@@ -5013,9 +5013,9 @@ static int ocfs2_adjust_xattr_cross_cluster(struct inode *inode,
 {
 	int ret;
 
-	mlog(0, "adjust xattrs from cluster %llu len %u to %llu\n",
-	     (unsigned long long)bucket_blkno(first), prev_clusters,
-	     (unsigned long long)new_blk);
+	trace_ocfs2_adjust_xattr_cross_cluster(
+			(unsigned long long)bucket_blkno(first),
+			(unsigned long long)new_blk, prev_clusters);
 
 	if (ocfs2_xattr_buckets_per_cluster(OCFS2_SB(inode->i_sb)) > 1) {
 		ret = ocfs2_mv_xattr_bucket_cross_cluster(inode,
@@ -5088,10 +5088,10 @@ static int ocfs2_add_new_xattr_cluster(struct inode *inode,
 	struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
 	struct ocfs2_extent_tree et;
 
-	mlog(0, "Add new xattr cluster for %llu, previous xattr hash = %u, "
-	     "previous xattr blkno = %llu\n",
-	     (unsigned long long)OCFS2_I(inode)->ip_blkno,
-	     prev_cpos, (unsigned long long)bucket_blkno(first));
+	trace_ocfs2_add_new_xattr_cluster_begin(
+		(unsigned long long)OCFS2_I(inode)->ip_blkno,
+		(unsigned long long)bucket_blkno(first),
+		prev_cpos, prev_clusters);
 
 	ocfs2_init_xattr_tree_extent_tree(&et, INODE_CACHE(inode), root_bh);
 
@@ -5113,8 +5113,7 @@ static int ocfs2_add_new_xattr_cluster(struct inode *inode,
 	BUG_ON(num_bits > clusters_to_add);
 
 	block = ocfs2_clusters_to_blocks(osb->sb, bit_off);
-	mlog(0, "Allocating %u clusters at block %u for xattr in inode %llu\n",
-	     num_bits, bit_off, (unsigned long long)OCFS2_I(inode)->ip_blkno);
+	trace_ocfs2_add_new_xattr_cluster((unsigned long long)block, num_bits);
 
 	if (bucket_blkno(first) + (prev_clusters * bpc) == block &&
 	    (prev_clusters + num_bits) << osb->s_clustersize_bits <=
@@ -5130,8 +5129,6 @@ static int ocfs2_add_new_xattr_cluster(struct inode *inode,
 		 */
 		v_start = prev_cpos + prev_clusters;
 		*num_clusters = prev_clusters + num_bits;
-		mlog(0, "Add contiguous %u clusters to previous extent rec.\n",
-		     num_bits);
 	} else {
 		ret = ocfs2_adjust_xattr_cross_cluster(inode,
 						       handle,
@@ -5147,8 +5144,8 @@ static int ocfs2_add_new_xattr_cluster(struct inode *inode,
 		}
 	}
 
-	mlog(0, "Insert %u clusters at block %llu for xattr at %u\n",
-	     num_bits, (unsigned long long)block, v_start);
+	trace_ocfs2_add_new_xattr_cluster_insert((unsigned long long)block,
+						 v_start, num_bits);
 	ret = ocfs2_insert_extent(handle, &et, v_start, block,
 				  num_bits, 0, ctxt->meta_ac);
 	if (ret < 0) {
@@ -5183,9 +5180,9 @@ static int ocfs2_extend_xattr_bucket(struct inode *inode,
 	u64 end_blk;
 	u16 new_bucket = le16_to_cpu(bucket_xh(first)->xh_num_buckets);
 
-	mlog(0, "extend xattr bucket in %llu, xattr extend rec starting "
-	     "from %llu, len = %u\n", (unsigned long long)target_blk,
-	     (unsigned long long)bucket_blkno(first), num_clusters);
+	trace_ocfs2_extend_xattr_bucket((unsigned long long)target_blk,
+					(unsigned long long)bucket_blkno(first),
+					num_clusters, new_bucket);
 
 	/* The extent must have room for an additional bucket */
 	BUG_ON(new_bucket >=
@@ -5265,8 +5262,8 @@ static int ocfs2_add_new_xattr_bucket(struct inode *inode,
 	/* The bucket at the front of the extent */
 	struct ocfs2_xattr_bucket *first;
 
-	mlog(0, "Add new xattr bucket starting from %llu\n",
-	     (unsigned long long)bucket_blkno(target));
+	trace_ocfs2_add_new_xattr_bucket(
+				(unsigned long long)bucket_blkno(target));
 
 	/* The first bucket of the original extent */
 	first = ocfs2_xattr_bucket_new(inode);
@@ -5382,8 +5379,8 @@ static int ocfs2_xattr_bucket_value_truncate(struct inode *inode,
 	 * modified something.  We have to assume they did, and dirty
 	 * the whole bucket.  This leaves us in a consistent state.
 	 */
-	mlog(0, "truncate %u in xattr bucket %llu to %d bytes.\n",
-	     xe_off, (unsigned long long)bucket_blkno(bucket), len);
+	trace_ocfs2_xattr_bucket_value_truncate(
+			(unsigned long long)bucket_blkno(bucket), xe_off, len);
 	ret = ocfs2_xattr_value_truncate(inode, &vb, len, ctxt);
 	if (ret) {
 		mlog_errno(ret);
@@ -5433,8 +5430,9 @@ static int ocfs2_rm_xattr_cluster(struct inode *inode,
 
 	ocfs2_init_dealloc_ctxt(&dealloc);
 
-	mlog(0, "rm xattr extent rec at %u len = %u, start from %llu\n",
-	     cpos, len, (unsigned long long)blkno);
+	trace_ocfs2_rm_xattr_cluster(
+			(unsigned long long)OCFS2_I(inode)->ip_blkno,
+			(unsigned long long)blkno, cpos, len);
 
 	ocfs2_remove_xattr_clusters_from_cache(INODE_CACHE(inode), blkno,
 					       len);
@@ -5538,7 +5536,7 @@ static int ocfs2_xattr_set_entry_bucket(struct inode *inode,
 	int ret;
 	struct ocfs2_xa_loc loc;
 
-	mlog_entry("Set xattr %s in xattr bucket\n", xi->xi_name);
+	trace_ocfs2_xattr_set_entry_bucket(xi->xi_name);
 
 	ocfs2_init_xattr_bucket_xa_loc(&loc, xs->bucket,
 				       xs->not_found ? NULL : xs->here);
@@ -5570,7 +5568,6 @@ static int ocfs2_xattr_set_entry_bucket(struct inode *inode,
 
 
 out:
-	mlog_exit(ret);
 	return ret;
 }
 
@@ -5581,7 +5578,7 @@ static int ocfs2_xattr_set_entry_index_block(struct inode *inode,
 {
 	int ret;
 
-	mlog_entry("Set xattr %s in xattr index block\n", xi->xi_name);
+	trace_ocfs2_xattr_set_entry_index_block(xi->xi_name);
 
 	ret = ocfs2_xattr_set_entry_bucket(inode, xi, xs, ctxt);
 	if (!ret)
@@ -5637,7 +5634,6 @@ static int ocfs2_xattr_set_entry_index_block(struct inode *inode,
 		mlog_errno(ret);
 
 out:
-	mlog_exit(ret);
 	return ret;
 }
 
@@ -6041,9 +6037,9 @@ static int ocfs2_xattr_bucket_value_refcount(struct inode *inode,
 	if (ocfs2_meta_ecc(OCFS2_SB(inode->i_sb)))
 		p = &refcount;
 
-	mlog(0, "refcount bucket %llu, count = %u\n",
-	     (unsigned long long)bucket_blkno(bucket),
-	     le16_to_cpu(xh->xh_count));
+	trace_ocfs2_xattr_bucket_value_refcount(
+				(unsigned long long)bucket_blkno(bucket),
+				le16_to_cpu(xh->xh_count));
 	for (i = 0; i < le16_to_cpu(xh->xh_count); i++) {
 		xe = &xh->xh_entries[i];
 
@@ -6339,8 +6335,8 @@ static int ocfs2_reflink_xattr_header(handle_t *handle,
 	u32 clusters, cpos, p_cluster, num_clusters;
 	unsigned int ext_flags = 0;
 
-	mlog(0, "reflink xattr in container %llu, count = %u\n",
-	     (unsigned long long)old_bh->b_blocknr, le16_to_cpu(xh->xh_count));
+	trace_ocfs2_reflink_xattr_header((unsigned long long)old_bh->b_blocknr,
+					 le16_to_cpu(xh->xh_count));
 
 	last = &new_xh->xh_entries[le16_to_cpu(new_xh->xh_count)];
 	for (i = 0, j = 0; i < le16_to_cpu(xh->xh_count); i++, j++) {
@@ -6540,8 +6536,8 @@ static int ocfs2_create_empty_xattr_block(struct inode *inode,
 		goto out;
 	}
 
-	mlog(0, "create new xattr block for inode %llu, index = %d\n",
-	     (unsigned long long)fe_bh->b_blocknr, indexed);
+	trace_ocfs2_create_empty_xattr_block(
+				(unsigned long long)fe_bh->b_blocknr, indexed);
 	ret = ocfs2_create_xattr_block(inode, fe_bh, &ctxt, indexed,
 				       ret_bh);
 	if (ret)
@@ -6952,8 +6948,8 @@ static int ocfs2_reflink_xattr_buckets(handle_t *handle,
 		if (ret)
 			mlog_errno(ret);
 
-		mlog(0, "insert new xattr extent rec start %llu len %u to %u\n",
-		     (unsigned long long)new_blkno, num_clusters, reflink_cpos);
+		trace_ocfs2_reflink_xattr_buckets((unsigned long long)new_blkno,
+						  num_clusters, reflink_cpos);
 
 		len -= num_clusters;
 		blkno += ocfs2_clusters_to_blocks(inode->i_sb, num_clusters);
@@ -6982,8 +6978,7 @@ static int ocfs2_reflink_xattr_rec(struct inode *inode,
 	struct ocfs2_alloc_context *data_ac = NULL;
 	struct ocfs2_extent_tree et;
 
-	mlog(0, "reflink xattr buckets %llu len %u\n",
-	     (unsigned long long)blkno, len);
+	trace_ocfs2_reflink_xattr_rec((unsigned long long)blkno, len);
 
 	ocfs2_init_xattr_tree_extent_tree(&et,
 					  INODE_CACHE(args->reflink->new_inode),
diff --git a/fs/partitions/check.c b/fs/partitions/check.c
index ac546975031f..d545e97d99c3 100644
--- a/fs/partitions/check.c
+++ b/fs/partitions/check.c
@@ -500,7 +500,7 @@ struct hd_struct *add_partition(struct gendisk *disk, int partno,
 	/* everything is up and running, commence */
 	rcu_assign_pointer(ptbl->part[partno], p);
 
-	/* suppress uevent if the disk supresses it */
+	/* suppress uevent if the disk suppresses it */
 	if (!dev_get_uevent_suppress(ddev))
 		kobject_uevent(&pdev->kobj, KOBJ_ADD);
 
@@ -585,7 +585,7 @@ rescan:
 	/*
 	 * If any partition code tried to read beyond EOD, try
 	 * unlocking native capacity even if partition table is
-	 * sucessfully read as we could be missing some partitions.
+	 * successfully read as we could be missing some partitions.
 	 */
 	if (state->access_beyond_eod) {
 		printk(KERN_WARNING
diff --git a/fs/proc/base.c b/fs/proc/base.c
index 5a670c11aeac..dd6628d3ba42 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -220,7 +220,7 @@ static struct mm_struct *__check_mem_permission(struct task_struct *task)
 	}
 
 	/*
-	 * Noone else is allowed.
+	 * No one else is allowed.
 	 */
 	mmput(mm);
 	return ERR_PTR(-EPERM);
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index 7c708a418acc..2e7addfd9803 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -182,7 +182,8 @@ static void m_stop(struct seq_file *m, void *v)
 	struct proc_maps_private *priv = m->private;
 	struct vm_area_struct *vma = v;
 
-	vma_stop(priv, vma);
+	if (!IS_ERR(vma))
+		vma_stop(priv, vma);
 	if (priv->task)
 		put_task_struct(priv->task);
 }
diff --git a/fs/pstore/Kconfig b/fs/pstore/Kconfig
index 867d0ac026ce..8007ae7c0d8c 100644
--- a/fs/pstore/Kconfig
+++ b/fs/pstore/Kconfig
@@ -1,5 +1,5 @@
 config PSTORE
-	bool "Persistant store support"
+	bool "Persistent store support"
 	default n
 	help
 	   This option enables generic access to platform level
diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
index a2a622e079f0..a925bf205497 100644
--- a/fs/quota/dquot.c
+++ b/fs/quota/dquot.c
@@ -76,7 +76,7 @@
 #include <linux/buffer_head.h>
 #include <linux/capability.h>
 #include <linux/quotaops.h>
-#include <linux/writeback.h> /* for inode_lock, oddly enough.. */
+#include "../internal.h" /* ugh */
 
 #include <asm/uaccess.h>
 
@@ -900,33 +900,38 @@ static void add_dquot_ref(struct super_block *sb, int type)
 	int reserved = 0;
 #endif
 
-	spin_lock(&inode_lock);
+	spin_lock(&inode_sb_list_lock);
 	list_for_each_entry(inode, &sb->s_inodes, i_sb_list) {
-		if (inode->i_state & (I_FREEING|I_WILL_FREE|I_NEW))
+		spin_lock(&inode->i_lock);
+		if ((inode->i_state & (I_FREEING|I_WILL_FREE|I_NEW)) ||
+		    !atomic_read(&inode->i_writecount) ||
+		    !dqinit_needed(inode, type)) {
+			spin_unlock(&inode->i_lock);
 			continue;
+		}
 #ifdef CONFIG_QUOTA_DEBUG
 		if (unlikely(inode_get_rsv_space(inode) > 0))
 			reserved = 1;
 #endif
-		if (!atomic_read(&inode->i_writecount))
-			continue;
-		if (!dqinit_needed(inode, type))
-			continue;
-
 		__iget(inode);
-		spin_unlock(&inode_lock);
+		spin_unlock(&inode->i_lock);
+		spin_unlock(&inode_sb_list_lock);
 
 		iput(old_inode);
 		__dquot_initialize(inode, type);
-		/* We hold a reference to 'inode' so it couldn't have been
-		 * removed from s_inodes list while we dropped the inode_lock.
-		 * We cannot iput the inode now as we can be holding the last
-		 * reference and we cannot iput it under inode_lock. So we
-		 * keep the reference and iput it later. */
+
+		/*
+		 * We hold a reference to 'inode' so it couldn't have been
+		 * removed from s_inodes list while we dropped the
+		 * inode_sb_list_lock We cannot iput the inode now as we can be
+		 * holding the last reference and we cannot iput it under
+		 * inode_sb_list_lock. So we keep the reference and iput it
+		 * later.
+		 */
 		old_inode = inode;
-		spin_lock(&inode_lock);
+		spin_lock(&inode_sb_list_lock);
 	}
-	spin_unlock(&inode_lock);
+	spin_unlock(&inode_sb_list_lock);
 	iput(old_inode);
 
 #ifdef CONFIG_QUOTA_DEBUG
@@ -951,7 +956,7 @@ static inline int dqput_blocks(struct dquot *dquot)
 
 /*
  * Remove references to dquots from inode and add dquot to list for freeing
- * if we have the last referece to dquot
+ * if we have the last reference to dquot
  * We can't race with anybody because we hold dqptr_sem for writing...
  */
 static int remove_inode_dquot_ref(struct inode *inode, int type,
@@ -1007,7 +1012,7 @@ static void remove_dquot_ref(struct super_block *sb, int type,
 	struct inode *inode;
 	int reserved = 0;
 
-	spin_lock(&inode_lock);
+	spin_lock(&inode_sb_list_lock);
 	list_for_each_entry(inode, &sb->s_inodes, i_sb_list) {
 		/*
 		 *  We have to scan also I_NEW inodes because they can already
@@ -1021,7 +1026,7 @@ static void remove_dquot_ref(struct super_block *sb, int type,
 			remove_inode_dquot_ref(inode, type, tofree_head);
 		}
 	}
-	spin_unlock(&inode_lock);
+	spin_unlock(&inode_sb_list_lock);
 #ifdef CONFIG_QUOTA_DEBUG
 	if (reserved) {
 		printk(KERN_WARNING "VFS (%s): Writes happened after quota"
diff --git a/fs/reiserfs/journal.c b/fs/reiserfs/journal.c
index c77514bd5776..c5e82ece7c6c 100644
--- a/fs/reiserfs/journal.c
+++ b/fs/reiserfs/journal.c
@@ -1,7 +1,7 @@
 /*
 ** Write ahead logging implementation copyright Chris Mason 2000
 **
-** The background commits make this code very interelated, and
+** The background commits make this code very interrelated, and
 ** overly complex.  I need to rethink things a bit....The major players:
 **
 ** journal_begin -- call with the number of blocks you expect to log.
@@ -2725,7 +2725,7 @@ int journal_init(struct super_block *sb, const char *j_dev_name,
 						 REISERFS_DISK_OFFSET_IN_BYTES /
 						 sb->s_blocksize + 2);
 
-	/* Sanity check to see is the standard journal fitting withing first bitmap
+	/* Sanity check to see is the standard journal fitting within first bitmap
 	   (actual for small blocksizes) */
 	if (!SB_ONDISK_JOURNAL_DEVICE(sb) &&
 	    (SB_JOURNAL_1st_RESERVED_BLOCK(sb) +
diff --git a/fs/reiserfs/lock.c b/fs/reiserfs/lock.c
index b87aa2c1afc1..7df1ce48203a 100644
--- a/fs/reiserfs/lock.c
+++ b/fs/reiserfs/lock.c
@@ -15,7 +15,7 @@
  * for this mutex, no need for a system wide mutex facility.
  *
  * Also this lock is often released before a call that could block because
- * reiserfs performances were partialy based on the release while schedule()
+ * reiserfs performances were partially based on the release while schedule()
  * property of the Bkl.
  */
 void reiserfs_write_lock(struct super_block *s)
diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c
index 0aab04f46827..b216ff6be1c9 100644
--- a/fs/reiserfs/super.c
+++ b/fs/reiserfs/super.c
@@ -393,7 +393,7 @@ void add_save_link(struct reiserfs_transaction_handle *th,
 	/* body of "save" link */
 	link = INODE_PKEY(inode)->k_dir_id;
 
-	/* put "save" link inot tree, don't charge quota to anyone */
+	/* put "save" link into tree, don't charge quota to anyone */
 	retval =
 	    reiserfs_insert_item(th, &path, &key, &ih, NULL, (char *)&link);
 	if (retval) {
@@ -2104,7 +2104,7 @@ out:
 
 /* Read data from quotafile - avoid pagecache and such because we cannot afford
  * acquiring the locks... As quota files are never truncated and quota code
- * itself serializes the operations (and noone else should touch the files)
+ * itself serializes the operations (and no one else should touch the files)
  * we don't have to be afraid of races */
 static ssize_t reiserfs_quota_read(struct super_block *sb, int type, char *data,
 				   size_t len, loff_t off)
diff --git a/fs/reiserfs/xattr.c b/fs/reiserfs/xattr.c
index 5c11ca82b782..47d2a4498b03 100644
--- a/fs/reiserfs/xattr.c
+++ b/fs/reiserfs/xattr.c
@@ -396,7 +396,7 @@ static struct page *reiserfs_get_page(struct inode *dir, size_t n)
 	struct address_space *mapping = dir->i_mapping;
 	struct page *page;
 	/* We can deadlock if we try to free dentries,
-	   and an unlink/rmdir has just occured - GFP_NOFS avoids this */
+	   and an unlink/rmdir has just occurred - GFP_NOFS avoids this */
 	mapping_set_gfp_mask(mapping, GFP_NOFS);
 	page = read_mapping_page(mapping, n >> PAGE_CACHE_SHIFT, NULL);
 	if (!IS_ERR(page)) {
diff --git a/fs/squashfs/cache.c b/fs/squashfs/cache.c
index 26b15ae34d6f..c37b520132ff 100644
--- a/fs/squashfs/cache.c
+++ b/fs/squashfs/cache.c
@@ -104,7 +104,7 @@ struct squashfs_cache_entry *squashfs_cache_get(struct super_block *sb,
 			entry = &cache->entry[i];
 
 			/*
-			 * Initialise choosen cache entry, and fill it in from
+			 * Initialise chosen cache entry, and fill it in from
 			 * disk.
 			 */
 			cache->unused--;
@@ -286,7 +286,7 @@ cleanup:
 
 
 /*
- * Copy upto length bytes from cache entry to buffer starting at offset bytes
+ * Copy up to length bytes from cache entry to buffer starting at offset bytes
  * into the cache entry.  If there's not length bytes then copy the number of
  * bytes available.  In all cases return the number of bytes copied.
  */
diff --git a/fs/ubifs/Kconfig b/fs/ubifs/Kconfig
index d7440904be17..f8b0160da2da 100644
--- a/fs/ubifs/Kconfig
+++ b/fs/ubifs/Kconfig
@@ -47,7 +47,7 @@ config UBIFS_FS_DEBUG
 	bool "Enable debugging support"
 	depends on UBIFS_FS
 	select DEBUG_FS
-	select KALLSYMS_ALL
+	select KALLSYMS
 	help
 	  This option enables UBIFS debugging support. It makes sure various
 	  assertions, self-checks, debugging messages and test modes are compiled
diff --git a/fs/ubifs/budget.c b/fs/ubifs/budget.c
index c8ff0d1ae5d3..8b3a7da531eb 100644
--- a/fs/ubifs/budget.c
+++ b/fs/ubifs/budget.c
@@ -147,7 +147,7 @@ static int make_free_space(struct ubifs_info *c)
 		if (liab2 < liab1)
 			return -EAGAIN;
 
-		dbg_budg("new liability %lld (not shrinked)", liab2);
+		dbg_budg("new liability %lld (not shrunk)", liab2);
 
 		/* Liability did not shrink again, try GC */
 		dbg_budg("Run GC");
diff --git a/fs/ubifs/commit.c b/fs/ubifs/commit.c
index b148fbc80f8d..1bd01ded7123 100644
--- a/fs/ubifs/commit.c
+++ b/fs/ubifs/commit.c
@@ -577,7 +577,7 @@ int dbg_check_old_index(struct ubifs_info *c, struct ubifs_zbranch *zroot)
 	size_t sz;
 
 	if (!(ubifs_chk_flags & UBIFS_CHK_OLD_IDX))
-		goto out;
+		return 0;
 
 	INIT_LIST_HEAD(&list);
 
diff --git a/fs/ubifs/debug.c b/fs/ubifs/debug.c
index f25a7339f800..004d3745dc45 100644
--- a/fs/ubifs/debug.c
+++ b/fs/ubifs/debug.c
@@ -972,11 +972,39 @@ void dbg_dump_index(struct ubifs_info *c)
 void dbg_save_space_info(struct ubifs_info *c)
 {
 	struct ubifs_debug_info *d = c->dbg;
-
-	ubifs_get_lp_stats(c, &d->saved_lst);
+	int freeable_cnt;
 
 	spin_lock(&c->space_lock);
+	memcpy(&d->saved_lst, &c->lst, sizeof(struct ubifs_lp_stats));
+
+	/*
+	 * We use a dirty hack here and zero out @c->freeable_cnt, because it
+	 * affects the free space calculations, and UBIFS might not know about
+	 * all freeable eraseblocks. Indeed, we know about freeable eraseblocks
+	 * only when we read their lprops, and we do this only lazily, upon the
+	 * need. So at any given point of time @c->freeable_cnt might be not
+	 * exactly accurate.
+	 *
+	 * Just one example about the issue we hit when we did not zero
+	 * @c->freeable_cnt.
+	 * 1. The file-system is mounted R/O, c->freeable_cnt is %0. We save the
+	 *    amount of free space in @d->saved_free
+	 * 2. We re-mount R/W, which makes UBIFS to read the "lsave"
+	 *    information from flash, where we cache LEBs from various
+	 *    categories ('ubifs_remount_fs()' -> 'ubifs_lpt_init()'
+	 *    -> 'lpt_init_wr()' -> 'read_lsave()' -> 'ubifs_lpt_lookup()'
+	 *    -> 'ubifs_get_pnode()' -> 'update_cats()'
+	 *    -> 'ubifs_add_to_cat()').
+	 * 3. Lsave contains a freeable eraseblock, and @c->freeable_cnt
+	 *    becomes %1.
+	 * 4. We calculate the amount of free space when the re-mount is
+	 *    finished in 'dbg_check_space_info()' and it does not match
+	 *    @d->saved_free.
+	 */
+	freeable_cnt = c->freeable_cnt;
+	c->freeable_cnt = 0;
 	d->saved_free = ubifs_get_free_space_nolock(c);
+	c->freeable_cnt = freeable_cnt;
 	spin_unlock(&c->space_lock);
 }
 
@@ -993,12 +1021,15 @@ int dbg_check_space_info(struct ubifs_info *c)
 {
 	struct ubifs_debug_info *d = c->dbg;
 	struct ubifs_lp_stats lst;
-	long long avail, free;
+	long long free;
+	int freeable_cnt;
 
 	spin_lock(&c->space_lock);
-	avail = ubifs_calc_available(c, c->min_idx_lebs);
+	freeable_cnt = c->freeable_cnt;
+	c->freeable_cnt = 0;
+	free = ubifs_get_free_space_nolock(c);
+	c->freeable_cnt = freeable_cnt;
 	spin_unlock(&c->space_lock);
-	free = ubifs_get_free_space(c);
 
 	if (free != d->saved_free) {
 		ubifs_err("free space changed from %lld to %lld",
@@ -2806,40 +2837,38 @@ int dbg_debugfs_init_fs(struct ubifs_info *c)
 	struct ubifs_debug_info *d = c->dbg;
 
 	sprintf(d->dfs_dir_name, "ubi%d_%d", c->vi.ubi_num, c->vi.vol_id);
-	d->dfs_dir = debugfs_create_dir(d->dfs_dir_name, dfs_rootdir);
-	if (IS_ERR(d->dfs_dir)) {
-		err = PTR_ERR(d->dfs_dir);
-		ubifs_err("cannot create \"%s\" debugfs directory, error %d\n",
-			  d->dfs_dir_name, err);
+	fname = d->dfs_dir_name;
+	dent = debugfs_create_dir(fname, dfs_rootdir);
+	if (IS_ERR_OR_NULL(dent))
 		goto out;
-	}
+	d->dfs_dir = dent;
 
 	fname = "dump_lprops";
 	dent = debugfs_create_file(fname, S_IWUSR, d->dfs_dir, c, &dfs_fops);
-	if (IS_ERR(dent))
+	if (IS_ERR_OR_NULL(dent))
 		goto out_remove;
 	d->dfs_dump_lprops = dent;
 
 	fname = "dump_budg";
 	dent = debugfs_create_file(fname, S_IWUSR, d->dfs_dir, c, &dfs_fops);
-	if (IS_ERR(dent))
+	if (IS_ERR_OR_NULL(dent))
 		goto out_remove;
 	d->dfs_dump_budg = dent;
 
 	fname = "dump_tnc";
 	dent = debugfs_create_file(fname, S_IWUSR, d->dfs_dir, c, &dfs_fops);
-	if (IS_ERR(dent))
+	if (IS_ERR_OR_NULL(dent))
 		goto out_remove;
 	d->dfs_dump_tnc = dent;
 
 	return 0;
 
 out_remove:
-	err = PTR_ERR(dent);
-	ubifs_err("cannot create \"%s\" debugfs directory, error %d\n",
-		  fname, err);
 	debugfs_remove_recursive(d->dfs_dir);
 out:
+	err = dent ? PTR_ERR(dent) : -ENODEV;
+	ubifs_err("cannot create \"%s\" debugfs directory, error %d\n",
+		  fname, err);
 	return err;
 }
 
diff --git a/fs/ubifs/lpt.c b/fs/ubifs/lpt.c
index 72775d35b99e..ef5155e109a2 100644
--- a/fs/ubifs/lpt.c
+++ b/fs/ubifs/lpt.c
@@ -1270,10 +1270,9 @@ static int read_pnode(struct ubifs_info *c, struct ubifs_nnode *parent, int iip)
 	lnum = branch->lnum;
 	offs = branch->offs;
 	pnode = kzalloc(sizeof(struct ubifs_pnode), GFP_NOFS);
-	if (!pnode) {
-		err = -ENOMEM;
-		goto out;
-	}
+	if (!pnode)
+		return -ENOMEM;
+
 	if (lnum == 0) {
 		/*
 		 * This pnode was not written which just means that the LEB
diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c
index 6ddd9973e681..c75f6133206c 100644
--- a/fs/ubifs/super.c
+++ b/fs/ubifs/super.c
@@ -1568,6 +1568,7 @@ static int ubifs_remount_rw(struct ubifs_info *c)
 	mutex_lock(&c->umount_mutex);
 	dbg_save_space_info(c);
 	c->remounting_rw = 1;
+	c->ro_mount = 0;
 
 	err = check_free_space(c);
 	if (err)
@@ -1676,13 +1677,13 @@ static int ubifs_remount_rw(struct ubifs_info *c)
 	}
 
 	dbg_gen("re-mounted read-write");
-	c->ro_mount = 0;
 	c->remounting_rw = 0;
 	err = dbg_check_space_info(c);
 	mutex_unlock(&c->umount_mutex);
 	return err;
 
 out:
+	c->ro_mount = 1;
 	vfree(c->orph_buf);
 	c->orph_buf = NULL;
 	if (c->bgt) {
diff --git a/fs/ubifs/xattr.c b/fs/ubifs/xattr.c
index c74400f88fe0..3299f469e712 100644
--- a/fs/ubifs/xattr.c
+++ b/fs/ubifs/xattr.c
@@ -56,6 +56,7 @@
  */
 
 #include "ubifs.h"
+#include <linux/fs.h>
 #include <linux/slab.h>
 #include <linux/xattr.h>
 #include <linux/posix_acl_xattr.h>
@@ -80,7 +81,6 @@ enum {
 };
 
 static const struct inode_operations none_inode_operations;
-static const struct address_space_operations none_address_operations;
 static const struct file_operations none_file_operations;
 
 /**
@@ -130,7 +130,7 @@ static int create_xattr(struct ubifs_info *c, struct inode *host,
 	}
 
 	/* Re-define all operations to be "nothing" */
-	inode->i_mapping->a_ops = &none_address_operations;
+	inode->i_mapping->a_ops = &empty_aops;
 	inode->i_op = &none_inode_operations;
 	inode->i_fop = &none_file_operations;
 
diff --git a/fs/ufs/inode.c b/fs/ufs/inode.c
index 27a4babe7df0..e765743cf9f3 100644
--- a/fs/ufs/inode.c
+++ b/fs/ufs/inode.c
@@ -78,7 +78,7 @@ static int ufs_block_to_path(struct inode *inode, sector_t i_block, sector_t off
 
 /*
  * Returns the location of the fragment from
- * the begining of the filesystem.
+ * the beginning of the filesystem.
  */
 
 static u64 ufs_frag_map(struct inode *inode, sector_t frag, bool needs_lock)
diff --git a/fs/ufs/super.c b/fs/ufs/super.c
index 7693d6293404..3915ade6f9a8 100644
--- a/fs/ufs/super.c
+++ b/fs/ufs/super.c
@@ -483,9 +483,9 @@ static int ufs_parse_options (char * options, unsigned * mount_options)
 }
 
 /*
- * Diffrent types of UFS hold fs_cstotal in different
- * places, and use diffrent data structure for it.
- * To make things simplier we just copy fs_cstotal to ufs_sb_private_info
+ * Different types of UFS hold fs_cstotal in different
+ * places, and use different data structure for it.
+ * To make things simpler we just copy fs_cstotal to ufs_sb_private_info
  */
 static void ufs_setup_cstotal(struct super_block *sb)
 {
diff --git a/fs/ufs/truncate.c b/fs/ufs/truncate.c
index 11014302c9ca..5f821dbc0579 100644
--- a/fs/ufs/truncate.c
+++ b/fs/ufs/truncate.c
@@ -479,7 +479,6 @@ int ufs_truncate(struct inode *inode, loff_t old_i_size)
 			break;
 		if (IS_SYNC(inode) && (inode->i_state & I_DIRTY))
 			ufs_sync_inode (inode);
-		blk_flush_plug(current);
 		yield();
 	}
 
diff --git a/fs/xfs/linux-2.6/xfs_aops.c b/fs/xfs/linux-2.6/xfs_aops.c
index 52dbd14260ba..79ce38be15a1 100644
--- a/fs/xfs/linux-2.6/xfs_aops.c
+++ b/fs/xfs/linux-2.6/xfs_aops.c
@@ -1295,7 +1295,7 @@ xfs_get_blocks_direct(
  * If the private argument is non-NULL __xfs_get_blocks signals us that we
  * need to issue a transaction to convert the range from unwritten to written
  * extents.  In case this is regular synchronous I/O we just call xfs_end_io
- * to do this and we are done.  But in case this was a successfull AIO
+ * to do this and we are done.  But in case this was a successful AIO
  * request this handler is called from interrupt context, from which we
  * can't start transactions.  In that case offload the I/O completion to
  * the workqueues we also use for buffered I/O completion.
diff --git a/fs/xfs/linux-2.6/xfs_buf.c b/fs/xfs/linux-2.6/xfs_buf.c
index c05324d3282c..5ea402023ebd 100644
--- a/fs/xfs/linux-2.6/xfs_buf.c
+++ b/fs/xfs/linux-2.6/xfs_buf.c
@@ -94,75 +94,6 @@ xfs_buf_vmap_len(
 }
 
 /*
- *	Page Region interfaces.
- *
- *	For pages in filesystems where the blocksize is smaller than the
- *	pagesize, we use the page->private field (long) to hold a bitmap
- * 	of uptodate regions within the page.
- *
- *	Each such region is "bytes per page / bits per long" bytes long.
- *
- *	NBPPR == number-of-bytes-per-page-region
- *	BTOPR == bytes-to-page-region (rounded up)
- *	BTOPRT == bytes-to-page-region-truncated (rounded down)
- */
-#if (BITS_PER_LONG == 32)
-#define PRSHIFT		(PAGE_CACHE_SHIFT - 5)	/* (32 == 1<<5) */
-#elif (BITS_PER_LONG == 64)
-#define PRSHIFT		(PAGE_CACHE_SHIFT - 6)	/* (64 == 1<<6) */
-#else
-#error BITS_PER_LONG must be 32 or 64
-#endif
-#define NBPPR		(PAGE_CACHE_SIZE/BITS_PER_LONG)
-#define BTOPR(b)	(((unsigned int)(b) + (NBPPR - 1)) >> PRSHIFT)
-#define BTOPRT(b)	(((unsigned int)(b) >> PRSHIFT))
-
-STATIC unsigned long
-page_region_mask(
-	size_t		offset,
-	size_t		length)
-{
-	unsigned long	mask;
-	int		first, final;
-
-	first = BTOPR(offset);
-	final = BTOPRT(offset + length - 1);
-	first = min(first, final);
-
-	mask = ~0UL;
-	mask <<= BITS_PER_LONG - (final - first);
-	mask >>= BITS_PER_LONG - (final);
-
-	ASSERT(offset + length <= PAGE_CACHE_SIZE);
-	ASSERT((final - first) < BITS_PER_LONG && (final - first) >= 0);
-
-	return mask;
-}
-
-STATIC void
-set_page_region(
-	struct page	*page,
-	size_t		offset,
-	size_t		length)
-{
-	set_page_private(page,
-		page_private(page) | page_region_mask(offset, length));
-	if (page_private(page) == ~0UL)
-		SetPageUptodate(page);
-}
-
-STATIC int
-test_page_region(
-	struct page	*page,
-	size_t		offset,
-	size_t		length)
-{
-	unsigned long	mask = page_region_mask(offset, length);
-
-	return (mask && (page_private(page) & mask) == mask);
-}
-
-/*
  * xfs_buf_lru_add - add a buffer to the LRU.
  *
  * The LRU takes a new reference to the buffer so that it will only be freed
@@ -189,7 +120,7 @@ xfs_buf_lru_add(
  * The unlocked check is safe here because it only occurs when there are not
  * b_lru_ref counts left on the inode under the pag->pag_buf_lock. it is there
  * to optimise the shrinker removing the buffer from the LRU and calling
- * xfs_buf_free(). i.e. it removes an unneccessary round trip on the
+ * xfs_buf_free(). i.e. it removes an unnecessary round trip on the
  * bt_lru_lock.
  */
 STATIC void
@@ -332,7 +263,7 @@ xfs_buf_free(
 
 	ASSERT(list_empty(&bp->b_lru));
 
-	if (bp->b_flags & (_XBF_PAGE_CACHE|_XBF_PAGES)) {
+	if (bp->b_flags & _XBF_PAGES) {
 		uint		i;
 
 		if (xfs_buf_is_vmapped(bp))
@@ -342,25 +273,22 @@ xfs_buf_free(
 		for (i = 0; i < bp->b_page_count; i++) {
 			struct page	*page = bp->b_pages[i];
 
-			if (bp->b_flags & _XBF_PAGE_CACHE)
-				ASSERT(!PagePrivate(page));
-			page_cache_release(page);
+			__free_page(page);
 		}
-	}
+	} else if (bp->b_flags & _XBF_KMEM)
+		kmem_free(bp->b_addr);
 	_xfs_buf_free_pages(bp);
 	xfs_buf_deallocate(bp);
 }
 
 /*
- *	Finds all pages for buffer in question and builds it's page list.
+ * Allocates all the pages for buffer in question and builds it's page list.
  */
 STATIC int
-_xfs_buf_lookup_pages(
+xfs_buf_allocate_memory(
 	xfs_buf_t		*bp,
 	uint			flags)
 {
-	struct address_space	*mapping = bp->b_target->bt_mapping;
-	size_t			blocksize = bp->b_target->bt_bsize;
 	size_t			size = bp->b_count_desired;
 	size_t			nbytes, offset;
 	gfp_t			gfp_mask = xb_to_gfp(flags);
@@ -369,29 +297,55 @@ _xfs_buf_lookup_pages(
 	xfs_off_t		end;
 	int			error;
 
+	/*
+	 * for buffers that are contained within a single page, just allocate
+	 * the memory from the heap - there's no need for the complexity of
+	 * page arrays to keep allocation down to order 0.
+	 */
+	if (bp->b_buffer_length < PAGE_SIZE) {
+		bp->b_addr = kmem_alloc(bp->b_buffer_length, xb_to_km(flags));
+		if (!bp->b_addr) {
+			/* low memory - use alloc_page loop instead */
+			goto use_alloc_page;
+		}
+
+		if (((unsigned long)(bp->b_addr + bp->b_buffer_length - 1) &
+								PAGE_MASK) !=
+		    ((unsigned long)bp->b_addr & PAGE_MASK)) {
+			/* b_addr spans two pages - use alloc_page instead */
+			kmem_free(bp->b_addr);
+			bp->b_addr = NULL;
+			goto use_alloc_page;
+		}
+		bp->b_offset = offset_in_page(bp->b_addr);
+		bp->b_pages = bp->b_page_array;
+		bp->b_pages[0] = virt_to_page(bp->b_addr);
+		bp->b_page_count = 1;
+		bp->b_flags |= XBF_MAPPED | _XBF_KMEM;
+		return 0;
+	}
+
+use_alloc_page:
 	end = bp->b_file_offset + bp->b_buffer_length;
 	page_count = xfs_buf_btoc(end) - xfs_buf_btoct(bp->b_file_offset);
-
 	error = _xfs_buf_get_pages(bp, page_count, flags);
 	if (unlikely(error))
 		return error;
-	bp->b_flags |= _XBF_PAGE_CACHE;
 
 	offset = bp->b_offset;
-	first = bp->b_file_offset >> PAGE_CACHE_SHIFT;
+	first = bp->b_file_offset >> PAGE_SHIFT;
+	bp->b_flags |= _XBF_PAGES;
 
 	for (i = 0; i < bp->b_page_count; i++) {
 		struct page	*page;
 		uint		retries = 0;
-
-	      retry:
-		page = find_or_create_page(mapping, first + i, gfp_mask);
+retry:
+		page = alloc_page(gfp_mask);
 		if (unlikely(page == NULL)) {
 			if (flags & XBF_READ_AHEAD) {
 				bp->b_page_count = i;
-				for (i = 0; i < bp->b_page_count; i++)
-					unlock_page(bp->b_pages[i]);
-				return -ENOMEM;
+				error = ENOMEM;
+				goto out_free_pages;
 			}
 
 			/*
@@ -412,52 +366,44 @@ _xfs_buf_lookup_pages(
 
 		XFS_STATS_INC(xb_page_found);
 
-		nbytes = min_t(size_t, size, PAGE_CACHE_SIZE - offset);
+		nbytes = min_t(size_t, size, PAGE_SIZE - offset);
 		size -= nbytes;
-
-		ASSERT(!PagePrivate(page));
-		if (!PageUptodate(page)) {
-			page_count--;
-			if (blocksize >= PAGE_CACHE_SIZE) {
-				if (flags & XBF_READ)
-					bp->b_flags |= _XBF_PAGE_LOCKED;
-			} else if (!PagePrivate(page)) {
-				if (test_page_region(page, offset, nbytes))
-					page_count++;
-			}
-		}
-
 		bp->b_pages[i] = page;
 		offset = 0;
 	}
+	return 0;
 
-	if (!(bp->b_flags & _XBF_PAGE_LOCKED)) {
-		for (i = 0; i < bp->b_page_count; i++)
-			unlock_page(bp->b_pages[i]);
-	}
-
-	if (page_count == bp->b_page_count)
-		bp->b_flags |= XBF_DONE;
-
+out_free_pages:
+	for (i = 0; i < bp->b_page_count; i++)
+		__free_page(bp->b_pages[i]);
 	return error;
 }
 
 /*
- *	Map buffer into kernel address-space if nessecary.
+ *	Map buffer into kernel address-space if necessary.
  */
 STATIC int
 _xfs_buf_map_pages(
 	xfs_buf_t		*bp,
 	uint			flags)
 {
-	/* A single page buffer is always mappable */
+	ASSERT(bp->b_flags & _XBF_PAGES);
 	if (bp->b_page_count == 1) {
+		/* A single page buffer is always mappable */
 		bp->b_addr = page_address(bp->b_pages[0]) + bp->b_offset;
 		bp->b_flags |= XBF_MAPPED;
 	} else if (flags & XBF_MAPPED) {
-		bp->b_addr = vm_map_ram(bp->b_pages, bp->b_page_count,
-					-1, PAGE_KERNEL);
-		if (unlikely(bp->b_addr == NULL))
+		int retried = 0;
+
+		do {
+			bp->b_addr = vm_map_ram(bp->b_pages, bp->b_page_count,
+						-1, PAGE_KERNEL);
+			if (bp->b_addr)
+				break;
+			vm_unmap_aliases();
+		} while (retried++ <= 1);
+
+		if (!bp->b_addr)
 			return -ENOMEM;
 		bp->b_addr += bp->b_offset;
 		bp->b_flags |= XBF_MAPPED;
@@ -568,9 +514,14 @@ found:
 		}
 	}
 
+	/*
+	 * if the buffer is stale, clear all the external state associated with
+	 * it. We need to keep flags such as how we allocated the buffer memory
+	 * intact here.
+	 */
 	if (bp->b_flags & XBF_STALE) {
 		ASSERT((bp->b_flags & _XBF_DELWRI_Q) == 0);
-		bp->b_flags &= XBF_MAPPED;
+		bp->b_flags &= XBF_MAPPED | _XBF_KMEM | _XBF_PAGES;
 	}
 
 	trace_xfs_buf_find(bp, flags, _RET_IP_);
@@ -591,7 +542,7 @@ xfs_buf_get(
 	xfs_buf_flags_t		flags)
 {
 	xfs_buf_t		*bp, *new_bp;
-	int			error = 0, i;
+	int			error = 0;
 
 	new_bp = xfs_buf_allocate(flags);
 	if (unlikely(!new_bp))
@@ -599,7 +550,7 @@ xfs_buf_get(
 
 	bp = _xfs_buf_find(target, ioff, isize, flags, new_bp);
 	if (bp == new_bp) {
-		error = _xfs_buf_lookup_pages(bp, flags);
+		error = xfs_buf_allocate_memory(bp, flags);
 		if (error)
 			goto no_buffer;
 	} else {
@@ -608,9 +559,6 @@ xfs_buf_get(
 			return NULL;
 	}
 
-	for (i = 0; i < bp->b_page_count; i++)
-		mark_page_accessed(bp->b_pages[i]);
-
 	if (!(bp->b_flags & XBF_MAPPED)) {
 		error = _xfs_buf_map_pages(bp, flags);
 		if (unlikely(error)) {
@@ -711,8 +659,7 @@ xfs_buf_readahead(
 {
 	struct backing_dev_info *bdi;
 
-	bdi = target->bt_mapping->backing_dev_info;
-	if (bdi_read_congested(bdi))
+	if (bdi_read_congested(target->bt_bdi))
 		return;
 
 	xfs_buf_read(target, ioff, isize,
@@ -790,10 +737,10 @@ xfs_buf_associate_memory(
 	size_t			buflen;
 	int			page_count;
 
-	pageaddr = (unsigned long)mem & PAGE_CACHE_MASK;
+	pageaddr = (unsigned long)mem & PAGE_MASK;
 	offset = (unsigned long)mem - pageaddr;
-	buflen = PAGE_CACHE_ALIGN(len + offset);
-	page_count = buflen >> PAGE_CACHE_SHIFT;
+	buflen = PAGE_ALIGN(len + offset);
+	page_count = buflen >> PAGE_SHIFT;
 
 	/* Free any previous set of page pointers */
 	if (bp->b_pages)
@@ -810,13 +757,12 @@ xfs_buf_associate_memory(
 
 	for (i = 0; i < bp->b_page_count; i++) {
 		bp->b_pages[i] = mem_to_page((void *)pageaddr);
-		pageaddr += PAGE_CACHE_SIZE;
+		pageaddr += PAGE_SIZE;
 	}
 
 	bp->b_count_desired = len;
 	bp->b_buffer_length = buflen;
 	bp->b_flags |= XBF_MAPPED;
-	bp->b_flags &= ~_XBF_PAGE_LOCKED;
 
 	return 0;
 }
@@ -923,20 +869,7 @@ xfs_buf_rele(
 
 
 /*
- *	Mutual exclusion on buffers.  Locking model:
- *
- *	Buffers associated with inodes for which buffer locking
- *	is not enabled are not protected by semaphores, and are
- *	assumed to be exclusively owned by the caller.  There is a
- *	spinlock in the buffer, used by the caller when concurrent
- *	access is possible.
- */
-
-/*
- *	Locks a buffer object, if it is not already locked.  Note that this in
- *	no way locks the underlying pages, so it is only useful for
- *	synchronizing concurrent use of buffer objects, not for synchronizing
- *	independent access to the underlying pages.
+ *	Lock a buffer object, if it is not already locked.
  *
  *	If we come across a stale, pinned, locked buffer, we know that we are
  *	being asked to lock a buffer that has been reallocated. Because it is
@@ -970,10 +903,7 @@ xfs_buf_lock_value(
 }
 
 /*
- *	Locks a buffer object.
- *	Note that this in no way locks the underlying pages, so it is only
- *	useful for synchronizing concurrent use of buffer objects, not for
- *	synchronizing independent access to the underlying pages.
+ *	Lock a buffer object.
  *
  *	If we come across a stale, pinned, locked buffer, we know that we
  *	are being asked to lock a buffer that has been reallocated. Because
@@ -1246,10 +1176,8 @@ _xfs_buf_ioend(
 	xfs_buf_t		*bp,
 	int			schedule)
 {
-	if (atomic_dec_and_test(&bp->b_io_remaining) == 1) {
-		bp->b_flags &= ~_XBF_PAGE_LOCKED;
+	if (atomic_dec_and_test(&bp->b_io_remaining) == 1)
 		xfs_buf_ioend(bp, schedule);
-	}
 }
 
 STATIC void
@@ -1258,35 +1186,12 @@ xfs_buf_bio_end_io(
 	int			error)
 {
 	xfs_buf_t		*bp = (xfs_buf_t *)bio->bi_private;
-	unsigned int		blocksize = bp->b_target->bt_bsize;
-	struct bio_vec		*bvec = bio->bi_io_vec + bio->bi_vcnt - 1;
 
 	xfs_buf_ioerror(bp, -error);
 
 	if (!error && xfs_buf_is_vmapped(bp) && (bp->b_flags & XBF_READ))
 		invalidate_kernel_vmap_range(bp->b_addr, xfs_buf_vmap_len(bp));
 
-	do {
-		struct page	*page = bvec->bv_page;
-
-		ASSERT(!PagePrivate(page));
-		if (unlikely(bp->b_error)) {
-			if (bp->b_flags & XBF_READ)
-				ClearPageUptodate(page);
-		} else if (blocksize >= PAGE_CACHE_SIZE) {
-			SetPageUptodate(page);
-		} else if (!PagePrivate(page) &&
-				(bp->b_flags & _XBF_PAGE_CACHE)) {
-			set_page_region(page, bvec->bv_offset, bvec->bv_len);
-		}
-
-		if (--bvec >= bio->bi_io_vec)
-			prefetchw(&bvec->bv_page->flags);
-
-		if (bp->b_flags & _XBF_PAGE_LOCKED)
-			unlock_page(page);
-	} while (bvec >= bio->bi_io_vec);
-
 	_xfs_buf_ioend(bp, 1);
 	bio_put(bio);
 }
@@ -1300,7 +1205,6 @@ _xfs_buf_ioapply(
 	int			offset = bp->b_offset;
 	int			size = bp->b_count_desired;
 	sector_t		sector = bp->b_bn;
-	unsigned int		blocksize = bp->b_target->bt_bsize;
 
 	total_nr_pages = bp->b_page_count;
 	map_i = 0;
@@ -1321,29 +1225,6 @@ _xfs_buf_ioapply(
 		     (bp->b_flags & XBF_READ_AHEAD) ? READA : READ;
 	}
 
-	/* Special code path for reading a sub page size buffer in --
-	 * we populate up the whole page, and hence the other metadata
-	 * in the same page.  This optimization is only valid when the
-	 * filesystem block size is not smaller than the page size.
-	 */
-	if ((bp->b_buffer_length < PAGE_CACHE_SIZE) &&
-	    ((bp->b_flags & (XBF_READ|_XBF_PAGE_LOCKED)) ==
-	      (XBF_READ|_XBF_PAGE_LOCKED)) &&
-	    (blocksize >= PAGE_CACHE_SIZE)) {
-		bio = bio_alloc(GFP_NOIO, 1);
-
-		bio->bi_bdev = bp->b_target->bt_bdev;
-		bio->bi_sector = sector - (offset >> BBSHIFT);
-		bio->bi_end_io = xfs_buf_bio_end_io;
-		bio->bi_private = bp;
-
-		bio_add_page(bio, bp->b_pages[0], PAGE_CACHE_SIZE, 0);
-		size = 0;
-
-		atomic_inc(&bp->b_io_remaining);
-
-		goto submit_io;
-	}
 
 next_chunk:
 	atomic_inc(&bp->b_io_remaining);
@@ -1357,8 +1238,9 @@ next_chunk:
 	bio->bi_end_io = xfs_buf_bio_end_io;
 	bio->bi_private = bp;
 
+
 	for (; size && nr_pages; nr_pages--, map_i++) {
-		int	rbytes, nbytes = PAGE_CACHE_SIZE - offset;
+		int	rbytes, nbytes = PAGE_SIZE - offset;
 
 		if (nbytes > size)
 			nbytes = size;
@@ -1373,7 +1255,6 @@ next_chunk:
 		total_nr_pages--;
 	}
 
-submit_io:
 	if (likely(bio->bi_size)) {
 		if (xfs_buf_is_vmapped(bp)) {
 			flush_kernel_vmap_range(bp->b_addr,
@@ -1383,18 +1264,7 @@ submit_io:
 		if (size)
 			goto next_chunk;
 	} else {
-		/*
-		 * if we get here, no pages were added to the bio. However,
-		 * we can't just error out here - if the pages are locked then
-		 * we have to unlock them otherwise we can hang on a later
-		 * access to the page.
-		 */
 		xfs_buf_ioerror(bp, EIO);
-		if (bp->b_flags & _XBF_PAGE_LOCKED) {
-			int i;
-			for (i = 0; i < bp->b_page_count; i++)
-				unlock_page(bp->b_pages[i]);
-		}
 		bio_put(bio);
 	}
 }
@@ -1458,8 +1328,8 @@ xfs_buf_offset(
 		return XFS_BUF_PTR(bp) + offset;
 
 	offset += bp->b_offset;
-	page = bp->b_pages[offset >> PAGE_CACHE_SHIFT];
-	return (xfs_caddr_t)page_address(page) + (offset & (PAGE_CACHE_SIZE-1));
+	page = bp->b_pages[offset >> PAGE_SHIFT];
+	return (xfs_caddr_t)page_address(page) + (offset & (PAGE_SIZE-1));
 }
 
 /*
@@ -1481,9 +1351,9 @@ xfs_buf_iomove(
 		page = bp->b_pages[xfs_buf_btoct(boff + bp->b_offset)];
 		cpoff = xfs_buf_poff(boff + bp->b_offset);
 		csize = min_t(size_t,
-			      PAGE_CACHE_SIZE-cpoff, bp->b_count_desired-boff);
+			      PAGE_SIZE-cpoff, bp->b_count_desired-boff);
 
-		ASSERT(((csize + cpoff) <= PAGE_CACHE_SIZE));
+		ASSERT(((csize + cpoff) <= PAGE_SIZE));
 
 		switch (mode) {
 		case XBRW_ZERO:
@@ -1596,7 +1466,6 @@ xfs_free_buftarg(
 	xfs_flush_buftarg(btp, 1);
 	if (mp->m_flags & XFS_MOUNT_BARRIER)
 		xfs_blkdev_issue_flush(btp);
-	iput(btp->bt_mapping->host);
 
 	kthread_stop(btp->bt_task);
 	kmem_free(btp);
@@ -1620,15 +1489,6 @@ xfs_setsize_buftarg_flags(
 		return EINVAL;
 	}
 
-	if (verbose &&
-	    (PAGE_CACHE_SIZE / BITS_PER_LONG) > sectorsize) {
-		printk(KERN_WARNING
-			"XFS: %u byte sectors in use on device %s.  "
-			"This is suboptimal; %u or greater is ideal.\n",
-			sectorsize, XFS_BUFTARG_NAME(btp),
-			(unsigned int)PAGE_CACHE_SIZE / BITS_PER_LONG);
-	}
-
 	return 0;
 }
 
@@ -1643,7 +1503,7 @@ xfs_setsize_buftarg_early(
 	struct block_device	*bdev)
 {
 	return xfs_setsize_buftarg_flags(btp,
-			PAGE_CACHE_SIZE, bdev_logical_block_size(bdev), 0);
+			PAGE_SIZE, bdev_logical_block_size(bdev), 0);
 }
 
 int
@@ -1656,40 +1516,6 @@ xfs_setsize_buftarg(
 }
 
 STATIC int
-xfs_mapping_buftarg(
-	xfs_buftarg_t		*btp,
-	struct block_device	*bdev)
-{
-	struct backing_dev_info	*bdi;
-	struct inode		*inode;
-	struct address_space	*mapping;
-	static const struct address_space_operations mapping_aops = {
-		.migratepage = fail_migrate_page,
-	};
-
-	inode = new_inode(bdev->bd_inode->i_sb);
-	if (!inode) {
-		printk(KERN_WARNING
-			"XFS: Cannot allocate mapping inode for device %s\n",
-			XFS_BUFTARG_NAME(btp));
-		return ENOMEM;
-	}
-	inode->i_ino = get_next_ino();
-	inode->i_mode = S_IFBLK;
-	inode->i_bdev = bdev;
-	inode->i_rdev = bdev->bd_dev;
-	bdi = blk_get_backing_dev_info(bdev);
-	if (!bdi)
-		bdi = &default_backing_dev_info;
-	mapping = &inode->i_data;
-	mapping->a_ops = &mapping_aops;
-	mapping->backing_dev_info = bdi;
-	mapping_set_gfp_mask(mapping, GFP_NOFS);
-	btp->bt_mapping = mapping;
-	return 0;
-}
-
-STATIC int
 xfs_alloc_delwrite_queue(
 	xfs_buftarg_t		*btp,
 	const char		*fsname)
@@ -1717,12 +1543,14 @@ xfs_alloc_buftarg(
 	btp->bt_mount = mp;
 	btp->bt_dev =  bdev->bd_dev;
 	btp->bt_bdev = bdev;
+	btp->bt_bdi = blk_get_backing_dev_info(bdev);
+	if (!btp->bt_bdi)
+		goto error;
+
 	INIT_LIST_HEAD(&btp->bt_lru);
 	spin_lock_init(&btp->bt_lru_lock);
 	if (xfs_setsize_buftarg_early(btp, bdev))
 		goto error;
-	if (xfs_mapping_buftarg(btp, bdev))
-		goto error;
 	if (xfs_alloc_delwrite_queue(btp, fsname))
 		goto error;
 	btp->bt_shrinker.shrink = xfs_buftarg_shrink;
diff --git a/fs/xfs/linux-2.6/xfs_buf.h b/fs/xfs/linux-2.6/xfs_buf.h
index cbe65950e524..a9a1c4512645 100644
--- a/fs/xfs/linux-2.6/xfs_buf.h
+++ b/fs/xfs/linux-2.6/xfs_buf.h
@@ -61,30 +61,11 @@ typedef enum {
 #define XBF_DONT_BLOCK	(1 << 16)/* do not block in current thread */
 
 /* flags used only internally */
-#define _XBF_PAGE_CACHE	(1 << 17)/* backed by pagecache */
 #define _XBF_PAGES	(1 << 18)/* backed by refcounted pages */
 #define	_XBF_RUN_QUEUES	(1 << 19)/* run block device task queue	*/
+#define	_XBF_KMEM	(1 << 20)/* backed by heap memory */
 #define _XBF_DELWRI_Q	(1 << 21)/* buffer on delwri queue */
 
-/*
- * Special flag for supporting metadata blocks smaller than a FSB.
- *
- * In this case we can have multiple xfs_buf_t on a single page and
- * need to lock out concurrent xfs_buf_t readers as they only
- * serialise access to the buffer.
- *
- * If the FSB size >= PAGE_CACHE_SIZE case, we have no serialisation
- * between reads of the page. Hence we can have one thread read the
- * page and modify it, but then race with another thread that thinks
- * the page is not up-to-date and hence reads it again.
- *
- * The result is that the first modifcation to the page is lost.
- * This sort of AGF/AGI reading race can happen when unlinking inodes
- * that require truncation and results in the AGI unlinked list
- * modifications being lost.
- */
-#define _XBF_PAGE_LOCKED	(1 << 22)
-
 typedef unsigned int xfs_buf_flags_t;
 
 #define XFS_BUF_FLAGS \
@@ -100,12 +81,10 @@ typedef unsigned int xfs_buf_flags_t;
 	{ XBF_LOCK,		"LOCK" },  	/* should never be set */\
 	{ XBF_TRYLOCK,		"TRYLOCK" }, 	/* ditto */\
 	{ XBF_DONT_BLOCK,	"DONT_BLOCK" },	/* ditto */\
-	{ _XBF_PAGE_CACHE,	"PAGE_CACHE" }, \
 	{ _XBF_PAGES,		"PAGES" }, \
 	{ _XBF_RUN_QUEUES,	"RUN_QUEUES" }, \
-	{ _XBF_DELWRI_Q,	"DELWRI_Q" }, \
-	{ _XBF_PAGE_LOCKED,	"PAGE_LOCKED" }
-
+	{ _XBF_KMEM,		"KMEM" }, \
+	{ _XBF_DELWRI_Q,	"DELWRI_Q" }
 
 typedef enum {
 	XBT_FORCE_SLEEP = 0,
@@ -120,7 +99,7 @@ typedef struct xfs_bufhash {
 typedef struct xfs_buftarg {
 	dev_t			bt_dev;
 	struct block_device	*bt_bdev;
-	struct address_space	*bt_mapping;
+	struct backing_dev_info	*bt_bdi;
 	struct xfs_mount	*bt_mount;
 	unsigned int		bt_bsize;
 	unsigned int		bt_sshift;
@@ -139,17 +118,6 @@ typedef struct xfs_buftarg {
 	unsigned int		bt_lru_nr;
 } xfs_buftarg_t;
 
-/*
- *	xfs_buf_t:  Buffer structure for pagecache-based buffers
- *
- * This buffer structure is used by the pagecache buffer management routines
- * to refer to an assembly of pages forming a logical buffer.
- *
- * The buffer structure is used on a temporary basis only, and discarded when
- * released.  The real data storage is recorded in the pagecache. Buffers are
- * hashed to the block device on which the file system resides.
- */
-
 struct xfs_buf;
 typedef void (*xfs_buf_iodone_t)(struct xfs_buf *);
 
diff --git a/fs/xfs/linux-2.6/xfs_file.c b/fs/xfs/linux-2.6/xfs_file.c
index a55c1b46b219..f4213ba1ff85 100644
--- a/fs/xfs/linux-2.6/xfs_file.c
+++ b/fs/xfs/linux-2.6/xfs_file.c
@@ -381,7 +381,7 @@ xfs_aio_write_isize_update(
 
 /*
  * If this was a direct or synchronous I/O that failed (such as ENOSPC) then
- * part of the I/O may have been written to disk before the error occured.  In
+ * part of the I/O may have been written to disk before the error occurred.  In
  * this case the on-disk file size may have been adjusted beyond the in-memory
  * file size and now needs to be truncated back.
  */
@@ -896,6 +896,7 @@ xfs_file_fallocate(
 	xfs_flock64_t	bf;
 	xfs_inode_t	*ip = XFS_I(inode);
 	int		cmd = XFS_IOC_RESVSP;
+	int		attr_flags = XFS_ATTR_NOLOCK;
 
 	if (mode & ~(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE))
 		return -EOPNOTSUPP;
@@ -918,7 +919,10 @@ xfs_file_fallocate(
 			goto out_unlock;
 	}
 
-	error = -xfs_change_file_space(ip, cmd, &bf, 0, XFS_ATTR_NOLOCK);
+	if (file->f_flags & O_DSYNC)
+		attr_flags |= XFS_ATTR_SYNC;
+
+	error = -xfs_change_file_space(ip, cmd, &bf, 0, attr_flags);
 	if (error)
 		goto out_unlock;
 
diff --git a/fs/xfs/linux-2.6/xfs_ioctl.c b/fs/xfs/linux-2.6/xfs_ioctl.c
index 0ca0e3c024d7..acca2c5ca3fa 100644
--- a/fs/xfs/linux-2.6/xfs_ioctl.c
+++ b/fs/xfs/linux-2.6/xfs_ioctl.c
@@ -624,6 +624,10 @@ xfs_ioc_space(
 
 	if (filp->f_flags & (O_NDELAY|O_NONBLOCK))
 		attr_flags |= XFS_ATTR_NONBLOCK;
+
+	if (filp->f_flags & O_DSYNC)
+		attr_flags |= XFS_ATTR_SYNC;
+
 	if (ioflags & IO_INVIS)
 		attr_flags |= XFS_ATTR_DMI;
 
diff --git a/fs/xfs/linux-2.6/xfs_iops.c b/fs/xfs/linux-2.6/xfs_iops.c
index 9ff7fc603d2f..dd21784525a8 100644
--- a/fs/xfs/linux-2.6/xfs_iops.c
+++ b/fs/xfs/linux-2.6/xfs_iops.c
@@ -70,7 +70,7 @@ xfs_synchronize_times(
 
 /*
  * If the linux inode is valid, mark it dirty.
- * Used when commiting a dirty inode into a transaction so that
+ * Used when committing a dirty inode into a transaction so that
  * the inode will get written back by the linux code
  */
 void
diff --git a/fs/xfs/linux-2.6/xfs_super.c b/fs/xfs/linux-2.6/xfs_super.c
index 818c4cf2de86..1ba5c451da36 100644
--- a/fs/xfs/linux-2.6/xfs_super.c
+++ b/fs/xfs/linux-2.6/xfs_super.c
@@ -1078,7 +1078,7 @@ xfs_fs_write_inode(
 			error = 0;
 			goto out_unlock;
 		}
-		error = xfs_iflush(ip, 0);
+		error = xfs_iflush(ip, SYNC_TRYLOCK);
 	}
 
  out_unlock:
@@ -1539,10 +1539,14 @@ xfs_fs_fill_super(
 	if (error)
 		goto out_free_sb;
 
-	error = xfs_mountfs(mp);
-	if (error)
-		goto out_filestream_unmount;
-
+	/*
+	 * we must configure the block size in the superblock before we run the
+	 * full mount process as the mount process can lookup and cache inodes.
+	 * For the same reason we must also initialise the syncd and register
+	 * the inode cache shrinker so that inodes can be reclaimed during
+	 * operations like a quotacheck that iterate all inodes in the
+	 * filesystem.
+	 */
 	sb->s_magic = XFS_SB_MAGIC;
 	sb->s_blocksize = mp->m_sb.sb_blocksize;
 	sb->s_blocksize_bits = ffs(sb->s_blocksize) - 1;
@@ -1550,6 +1554,16 @@ xfs_fs_fill_super(
 	sb->s_time_gran = 1;
 	set_posix_acl_flag(sb);
 
+	error = xfs_syncd_init(mp);
+	if (error)
+		goto out_filestream_unmount;
+
+	xfs_inode_shrinker_register(mp);
+
+	error = xfs_mountfs(mp);
+	if (error)
+		goto out_syncd_stop;
+
 	root = igrab(VFS_I(mp->m_rootip));
 	if (!root) {
 		error = ENOENT;
@@ -1565,14 +1579,11 @@ xfs_fs_fill_super(
 		goto fail_vnrele;
 	}
 
-	error = xfs_syncd_init(mp);
-	if (error)
-		goto fail_vnrele;
-
-	xfs_inode_shrinker_register(mp);
-
 	return 0;
 
+ out_syncd_stop:
+	xfs_inode_shrinker_unregister(mp);
+	xfs_syncd_stop(mp);
  out_filestream_unmount:
 	xfs_filestream_unmount(mp);
  out_free_sb:
@@ -1596,6 +1607,9 @@ xfs_fs_fill_super(
 	}
 
  fail_unmount:
+	xfs_inode_shrinker_unregister(mp);
+	xfs_syncd_stop(mp);
+
 	/*
 	 * Blow away any referenced inode in the filestreams cache.
 	 * This can and will cause log traffic as inodes go inactive
diff --git a/fs/xfs/linux-2.6/xfs_sync.c b/fs/xfs/linux-2.6/xfs_sync.c
index 6c10f1d2e3d3..9cf35a688f53 100644
--- a/fs/xfs/linux-2.6/xfs_sync.c
+++ b/fs/xfs/linux-2.6/xfs_sync.c
@@ -401,7 +401,7 @@ xfs_quiesce_fs(
 /*
  * Second stage of a quiesce. The data is already synced, now we have to take
  * care of the metadata. New transactions are already blocked, so we need to
- * wait for any remaining transactions to drain out before proceding.
+ * wait for any remaining transactions to drain out before proceeding.
  */
 void
 xfs_quiesce_attr(
@@ -761,8 +761,10 @@ xfs_reclaim_inode(
 	struct xfs_perag	*pag,
 	int			sync_mode)
 {
-	int	error = 0;
+	int	error;
 
+restart:
+	error = 0;
 	xfs_ilock(ip, XFS_ILOCK_EXCL);
 	if (!xfs_iflock_nowait(ip)) {
 		if (!(sync_mode & SYNC_WAIT))
@@ -788,9 +790,31 @@ xfs_reclaim_inode(
 	if (xfs_inode_clean(ip))
 		goto reclaim;
 
-	/* Now we have an inode that needs flushing */
-	error = xfs_iflush(ip, sync_mode);
+	/*
+	 * Now we have an inode that needs flushing.
+	 *
+	 * We do a nonblocking flush here even if we are doing a SYNC_WAIT
+	 * reclaim as we can deadlock with inode cluster removal.
+	 * xfs_ifree_cluster() can lock the inode buffer before it locks the
+	 * ip->i_lock, and we are doing the exact opposite here. As a result,
+	 * doing a blocking xfs_itobp() to get the cluster buffer will result
+	 * in an ABBA deadlock with xfs_ifree_cluster().
+	 *
+	 * As xfs_ifree_cluser() must gather all inodes that are active in the
+	 * cache to mark them stale, if we hit this case we don't actually want
+	 * to do IO here - we want the inode marked stale so we can simply
+	 * reclaim it. Hence if we get an EAGAIN error on a SYNC_WAIT flush,
+	 * just unlock the inode, back off and try again. Hopefully the next
+	 * pass through will see the stale flag set on the inode.
+	 */
+	error = xfs_iflush(ip, SYNC_TRYLOCK | sync_mode);
 	if (sync_mode & SYNC_WAIT) {
+		if (error == EAGAIN) {
+			xfs_iunlock(ip, XFS_ILOCK_EXCL);
+			/* backoff longer than in xfs_ifree_cluster */
+			delay(2);
+			goto restart;
+		}
 		xfs_iflock(ip);
 		goto reclaim;
 	}
diff --git a/fs/xfs/quota/xfs_dquot.c b/fs/xfs/quota/xfs_dquot.c
index 7e2416478503..6fa214603819 100644
--- a/fs/xfs/quota/xfs_dquot.c
+++ b/fs/xfs/quota/xfs_dquot.c
@@ -600,7 +600,7 @@ xfs_qm_dqread(
 
 	/*
 	 * Reservation counters are defined as reservation plus current usage
-	 * to avoid having to add everytime.
+	 * to avoid having to add every time.
 	 */
 	dqp->q_res_bcount = be64_to_cpu(ddqp->d_bcount);
 	dqp->q_res_icount = be64_to_cpu(ddqp->d_icount);
diff --git a/fs/xfs/quota/xfs_qm_bhv.c b/fs/xfs/quota/xfs_qm_bhv.c
index 774d7ec6df8e..a0a829addca9 100644
--- a/fs/xfs/quota/xfs_qm_bhv.c
+++ b/fs/xfs/quota/xfs_qm_bhv.c
@@ -134,7 +134,7 @@ xfs_qm_newmount(
 		 */
 		if (quotaondisk && !XFS_QM_NEED_QUOTACHECK(mp)) {
 			/*
-			 * If an error occured, qm_mount_quotas code
+			 * If an error occurred, qm_mount_quotas code
 			 * has already disabled quotas. So, just finish
 			 * mounting, and get on with the boring life
 			 * without disk quotas.
diff --git a/fs/xfs/quota/xfs_qm_syscalls.c b/fs/xfs/quota/xfs_qm_syscalls.c
index c82f06778a27..0d62a07b7fd8 100644
--- a/fs/xfs/quota/xfs_qm_syscalls.c
+++ b/fs/xfs/quota/xfs_qm_syscalls.c
@@ -172,7 +172,7 @@ xfs_qm_scall_quotaoff(
 	/*
 	 * Next we make the changes in the quota flag in the mount struct.
 	 * This isn't protected by a particular lock directly, because we
-	 * don't want to take a mrlock everytime we depend on quotas being on.
+	 * don't want to take a mrlock every time we depend on quotas being on.
 	 */
 	mp->m_qflags &= ~(flags);
 
@@ -354,7 +354,7 @@ xfs_qm_scall_quotaon(
 		return XFS_ERROR(EINVAL);
 	}
 	/*
-	 * If everything's upto-date incore, then don't waste time.
+	 * If everything's up to-date incore, then don't waste time.
 	 */
 	if ((mp->m_qflags & flags) == flags)
 		return XFS_ERROR(EEXIST);
diff --git a/fs/xfs/xfs_buf_item.c b/fs/xfs/xfs_buf_item.c
index e5413d96f1af..7b7e005e3dcc 100644
--- a/fs/xfs/xfs_buf_item.c
+++ b/fs/xfs/xfs_buf_item.c
@@ -992,7 +992,7 @@ xfs_buf_iodone_callbacks(
 	lasttarg = XFS_BUF_TARGET(bp);
 
 	/*
-	 * If the write was asynchronous then noone will be looking for the
+	 * If the write was asynchronous then no one will be looking for the
 	 * error.  Clear the error state and write the buffer out again.
 	 *
 	 * During sync or umount we'll write all pending buffers again
diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index da871f532236..a37480a6e023 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -2789,7 +2789,7 @@ xfs_iflush(
 
 	/*
 	 * We can't flush the inode until it is unpinned, so wait for it if we
-	 * are allowed to block.  We know noone new can pin it, because we are
+	 * are allowed to block.  We know no one new can pin it, because we are
 	 * holding the inode lock shared and you need to hold it exclusively to
 	 * pin the inode.
 	 *
@@ -2835,7 +2835,7 @@ xfs_iflush(
 	 * Get the buffer containing the on-disk inode.
 	 */
 	error = xfs_itobp(mp, NULL, ip, &dip, &bp,
-				(flags & SYNC_WAIT) ? XBF_LOCK : XBF_TRYLOCK);
+				(flags & SYNC_TRYLOCK) ? XBF_TRYLOCK : XBF_LOCK);
 	if (error || !bp) {
 		xfs_ifunlock(ip);
 		return error;
diff --git a/fs/xfs/xfs_inode.h b/fs/xfs/xfs_inode.h
index f753200cef8d..ff4e2a30227d 100644
--- a/fs/xfs/xfs_inode.h
+++ b/fs/xfs/xfs_inode.h
@@ -111,7 +111,7 @@ struct xfs_imap {
  * Generally, we do not want to hold the i_rlock while holding the
  * i_ilock. Hierarchy is i_iolock followed by i_rlock.
  *
- * xfs_iptr_t contains all the inode fields upto and including the
+ * xfs_iptr_t contains all the inode fields up to and including the
  * i_mnext and i_mprev fields, it is used as a marker in the inode
  * chain off the mount structure by xfs_sync calls.
  */
@@ -336,7 +336,7 @@ xfs_iflags_test_and_clear(xfs_inode_t *ip, unsigned short flags)
 
 /*
  * Project quota id helpers (previously projid was 16bit only
- * and using two 16bit values to hold new 32bit projid was choosen
+ * and using two 16bit values to hold new 32bit projid was chosen
  * to retain compatibility with "old" filesystems).
  */
 static inline prid_t
diff --git a/fs/xfs/xfs_inode_item.c b/fs/xfs/xfs_inode_item.c
index fd4f398bd6f1..46cc40131d4a 100644
--- a/fs/xfs/xfs_inode_item.c
+++ b/fs/xfs/xfs_inode_item.c
@@ -760,11 +760,11 @@ xfs_inode_item_push(
 	 * Push the inode to it's backing buffer. This will not remove the
 	 * inode from the AIL - a further push will be required to trigger a
 	 * buffer push. However, this allows all the dirty inodes to be pushed
-	 * to the buffer before it is pushed to disk. THe buffer IO completion
-	 * will pull th einode from the AIL, mark it clean and unlock the flush
+	 * to the buffer before it is pushed to disk. The buffer IO completion
+	 * will pull the inode from the AIL, mark it clean and unlock the flush
 	 * lock.
 	 */
-	(void) xfs_iflush(ip, 0);
+	(void) xfs_iflush(ip, SYNC_TRYLOCK);
 	xfs_iunlock(ip, XFS_ILOCK_SHARED);
 }
 
diff --git a/fs/xfs/xfs_log_priv.h b/fs/xfs/xfs_log_priv.h
index 15dbf1f9c2be..ffae692c9832 100644
--- a/fs/xfs/xfs_log_priv.h
+++ b/fs/xfs/xfs_log_priv.h
@@ -570,7 +570,7 @@ int	xlog_write(struct log *log, struct xfs_log_vec *log_vector,
  * When we crack an atomic LSN, we sample it first so that the value will not
  * change while we are cracking it into the component values. This means we
  * will always get consistent component values to work from. This should always
- * be used to smaple and crack LSNs taht are stored and updated in atomic
+ * be used to sample and crack LSNs that are stored and updated in atomic
  * variables.
  */
 static inline void
diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c
index 0c4a5618e7af..5cc464a17c93 100644
--- a/fs/xfs/xfs_log_recover.c
+++ b/fs/xfs/xfs_log_recover.c
@@ -101,7 +101,7 @@ xlog_get_bp(
 	/*
 	 * We do log I/O in units of log sectors (a power-of-2
 	 * multiple of the basic block size), so we round up the
-	 * requested size to acommodate the basic blocks required
+	 * requested size to accommodate the basic blocks required
 	 * for complete log sectors.
 	 *
 	 * In addition, the buffer may be used for a non-sector-
@@ -112,7 +112,7 @@ xlog_get_bp(
 	 * an issue.  Nor will this be a problem if the log I/O is
 	 * done in basic blocks (sector size 1).  But otherwise we
 	 * extend the buffer by one extra log sector to ensure
-	 * there's space to accomodate this possiblility.
+	 * there's space to accommodate this possibility.
 	 */
 	if (nbblks > 1 && log->l_sectBBsize > 1)
 		nbblks += log->l_sectBBsize;
diff --git a/fs/xfs/xfs_trans_buf.c b/fs/xfs/xfs_trans_buf.c
index 3bea66132334..03b3b7f85a3b 100644
--- a/fs/xfs/xfs_trans_buf.c
+++ b/fs/xfs/xfs_trans_buf.c
@@ -383,7 +383,8 @@ xfs_trans_read_buf(
 	bp = xfs_buf_read(target, blkno, len, flags | XBF_DONT_BLOCK);
 	if (bp == NULL) {
 		*bpp = NULL;
-		return 0;
+		return (flags & XBF_TRYLOCK) ?
+					0 : XFS_ERROR(ENOMEM);
 	}
 	if (XFS_BUF_GETERROR(bp) != 0) {
 	    XFS_BUF_SUPER_STALE(bp);
diff --git a/fs/xfs/xfs_trans_inode.c b/fs/xfs/xfs_trans_inode.c
index 16084d8ea231..048b0c689d3e 100644
--- a/fs/xfs/xfs_trans_inode.c
+++ b/fs/xfs/xfs_trans_inode.c
@@ -81,7 +81,7 @@ xfs_trans_ijoin(
  *
  *
  * Grabs a reference to the inode which will be dropped when the transaction
- * is commited.  The inode will also be unlocked at that point.  The inode
+ * is committed.  The inode will also be unlocked at that point.  The inode
  * must be locked, and it cannot be associated with any transaction.
  */
 void
diff --git a/fs/xfs/xfs_vnodeops.c b/fs/xfs/xfs_vnodeops.c
index 37d8146ee15b..b7a5fe7c52c8 100644
--- a/fs/xfs/xfs_vnodeops.c
+++ b/fs/xfs/xfs_vnodeops.c
@@ -953,7 +953,7 @@ xfs_release(
 		 * If we previously truncated this file and removed old data
 		 * in the process, we want to initiate "early" writeout on
 		 * the last close.  This is an attempt to combat the notorious
-		 * NULL files problem which is particularly noticable from a
+		 * NULL files problem which is particularly noticeable from a
 		 * truncate down, buffered (re-)write (delalloc), followed by
 		 * a crash.  What we are effectively doing here is
 		 * significantly reducing the time window where we'd otherwise
@@ -982,7 +982,7 @@ xfs_release(
 		 *
 		 * Further, check if the inode is being opened, written and
 		 * closed frequently and we have delayed allocation blocks
-		 * oustanding (e.g. streaming writes from the NFS server),
+		 * outstanding (e.g. streaming writes from the NFS server),
 		 * truncating the blocks past EOF will cause fragmentation to
 		 * occur.
 		 *
@@ -2831,7 +2831,8 @@ xfs_change_file_space(
 		ip->i_d.di_flags &= ~XFS_DIFLAG_PREALLOC;
 
 	xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
-	xfs_trans_set_sync(tp);
+	if (attr_flags & XFS_ATTR_SYNC)
+		xfs_trans_set_sync(tp);
 
 	error = xfs_trans_commit(tp, 0);
 
diff --git a/fs/xfs/xfs_vnodeops.h b/fs/xfs/xfs_vnodeops.h
index f6702927eee4..3bcd23353d6c 100644
--- a/fs/xfs/xfs_vnodeops.h
+++ b/fs/xfs/xfs_vnodeops.h
@@ -18,6 +18,7 @@ int xfs_setattr(struct xfs_inode *ip, struct iattr *vap, int flags);
 #define	XFS_ATTR_NONBLOCK	0x02	/* return EAGAIN if operation would block */
 #define XFS_ATTR_NOLOCK		0x04	/* Don't grab any conflicting locks */
 #define XFS_ATTR_NOACL		0x08	/* Don't call xfs_acl_chmod */
+#define XFS_ATTR_SYNC		0x10	/* synchronous operation required */
 
 int xfs_readlink(struct xfs_inode *ip, char *link);
 int xfs_release(struct xfs_inode *ip);
diff --git a/include/acpi/actbl.h b/include/acpi/actbl.h
index d41c94885211..f1380287ed4d 100644
--- a/include/acpi/actbl.h
+++ b/include/acpi/actbl.h
@@ -290,7 +290,7 @@ struct acpi_table_fadt {
 #define ACPI_FADT_APIC_CLUSTER      (1<<18)	/* 18: [V4] All local APICs must use cluster model (ACPI 3.0) */
 #define ACPI_FADT_APIC_PHYSICAL     (1<<19)	/* 19: [V4] All local x_aPICs must use physical dest mode (ACPI 3.0) */
 
-/* Values for preferred_profile (Prefered Power Management Profiles) */
+/* Values for preferred_profile (Preferred Power Management Profiles) */
 
 enum acpi_prefered_pm_profiles {
 	PM_UNSPECIFIED = 0,
diff --git a/include/asm-generic/bug.h b/include/asm-generic/bug.h
index c2c9ba032d46..e5a3f5880001 100644
--- a/include/asm-generic/bug.h
+++ b/include/asm-generic/bug.h
@@ -165,10 +165,43 @@ extern void warn_slowpath_null(const char *file, const int line);
 #define WARN_ON_RATELIMIT(condition, state)			\
 		WARN_ON((condition) && __ratelimit(state))
 
+/*
+ * WARN_ON_SMP() is for cases that the warning is either
+ * meaningless for !SMP or may even cause failures.
+ * This is usually used for cases that we have
+ * WARN_ON(!spin_is_locked(&lock)) checks, as spin_is_locked()
+ * returns 0 for uniprocessor settings.
+ * It can also be used with values that are only defined
+ * on SMP:
+ *
+ * struct foo {
+ *  [...]
+ * #ifdef CONFIG_SMP
+ *	int bar;
+ * #endif
+ * };
+ *
+ * void func(struct foo *zoot)
+ * {
+ *	WARN_ON_SMP(!zoot->bar);
+ *
+ * For CONFIG_SMP, WARN_ON_SMP() should act the same as WARN_ON(),
+ * and should be a nop and return false for uniprocessor.
+ *
+ * if (WARN_ON_SMP(x)) returns true only when CONFIG_SMP is set
+ * and x is true.
+ */
 #ifdef CONFIG_SMP
 # define WARN_ON_SMP(x)			WARN_ON(x)
 #else
-# define WARN_ON_SMP(x)			do { } while (0)
+/*
+ * Use of ({0;}) because WARN_ON_SMP(x) may be used either as
+ * a stand alone line statement or as a condition in an if ()
+ * statement.
+ * A simple "0" would cause gcc to give a "statement has no effect"
+ * warning.
+ */
+# define WARN_ON_SMP(x)			({0;})
 #endif
 
 #endif
diff --git a/include/asm-generic/siginfo.h b/include/asm-generic/siginfo.h
index 942d30b5aab1..0dd4e87f6fba 100644
--- a/include/asm-generic/siginfo.h
+++ b/include/asm-generic/siginfo.h
@@ -192,7 +192,7 @@ typedef struct siginfo {
  * SIGBUS si_codes
  */
 #define BUS_ADRALN	(__SI_FAULT|1)	/* invalid address alignment */
-#define BUS_ADRERR	(__SI_FAULT|2)	/* non-existant physical address */
+#define BUS_ADRERR	(__SI_FAULT|2)	/* non-existent physical address */
 #define BUS_OBJERR	(__SI_FAULT|3)	/* object specific hardware error */
 /* hardware memory error consumed on a machine check: action required */
 #define BUS_MCEERR_AR	(__SI_FAULT|4)
diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index 32c45e5fe0ab..bd297a20ab98 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -773,7 +773,7 @@
  * the sections that has this restriction (or similar)
  * is located before the ones requiring PAGE_SIZE alignment.
  * NOSAVE_DATA starts and ends with a PAGE_SIZE alignment which
- * matches the requirment of PAGE_ALIGNED_DATA.
+ * matches the requirement of PAGE_ALIGNED_DATA.
  *
  * use 0 as page_align if page_aligned data is not used */
 #define RW_DATA_SECTION(cacheline, pagealigned, inittask)		\
diff --git a/include/drm/drm.h b/include/drm/drm.h
index 9ac431396176..4be33b4ca2f8 100644
--- a/include/drm/drm.h
+++ b/include/drm/drm.h
@@ -463,12 +463,15 @@ struct drm_irq_busid {
 enum drm_vblank_seq_type {
 	_DRM_VBLANK_ABSOLUTE = 0x0,	/**< Wait for specific vblank sequence number */
 	_DRM_VBLANK_RELATIVE = 0x1,	/**< Wait for given number of vblanks */
+	/* bits 1-6 are reserved for high crtcs */
+	_DRM_VBLANK_HIGH_CRTC_MASK = 0x0000003e,
 	_DRM_VBLANK_EVENT = 0x4000000,   /**< Send event instead of blocking */
 	_DRM_VBLANK_FLIP = 0x8000000,   /**< Scheduled buffer swap should flip */
 	_DRM_VBLANK_NEXTONMISS = 0x10000000,	/**< If missed, wait for next vblank */
 	_DRM_VBLANK_SECONDARY = 0x20000000,	/**< Secondary display controller */
 	_DRM_VBLANK_SIGNAL = 0x40000000	/**< Send signal instead of blocking, unsupported */
 };
+#define _DRM_VBLANK_HIGH_CRTC_SHIFT 1
 
 #define _DRM_VBLANK_TYPES_MASK (_DRM_VBLANK_ABSOLUTE | _DRM_VBLANK_RELATIVE)
 #define _DRM_VBLANK_FLAGS_MASK (_DRM_VBLANK_EVENT | _DRM_VBLANK_SIGNAL | \
@@ -753,6 +756,7 @@ struct drm_event_vblank {
 };
 
 #define DRM_CAP_DUMB_BUFFER 0x1
+#define DRM_CAP_VBLANK_HIGH_CRTC 0x2
 
 /* typedef area */
 #ifndef __KERNEL__
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index ad5770f2315c..202424d17ed7 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -95,7 +95,7 @@ struct drm_device;
  * drm_core, drm_driver, drm_kms
  * drm_core level can be used in the generic drm code. For example:
  * 	drm_ioctl, drm_mm, drm_memory
- * The macro definiton of DRM_DEBUG is used.
+ * The macro definition of DRM_DEBUG is used.
  * 	DRM_DEBUG(fmt, args...)
  * 	The debug info by using the DRM_DEBUG can be obtained by adding
  * 	the boot option of "drm.debug=1".
@@ -808,7 +808,7 @@ struct drm_driver {
 	 *
 	 * \return Flags, or'ed together as follows:
 	 *
-	 * DRM_SCANOUTPOS_VALID = Query successfull.
+	 * DRM_SCANOUTPOS_VALID = Query successful.
 	 * DRM_SCANOUTPOS_INVBL = Inside vblank.
 	 * DRM_SCANOUTPOS_ACCURATE = Returned position is accurate. A lack of
 	 * this flag means that returned position may be offset by a constant
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 60edf9be31e5..d94684b7ba34 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -65,7 +65,7 @@ enum drm_mode_status {
     MODE_H_ILLEGAL,	/* mode has illegal horizontal timings */
     MODE_V_ILLEGAL,	/* mode has illegal horizontal timings */
     MODE_BAD_WIDTH,	/* requires an unsupported linepitch */
-    MODE_NOMODE,	/* no mode with a maching name */
+    MODE_NOMODE,	/* no mode with a matching name */
     MODE_NO_INTERLACE,	/* interlaced mode not supported */
     MODE_NO_DBLESCAN,	/* doublescan mode not supported */
     MODE_NO_VSCAN,	/* multiscan mode not supported */
@@ -321,7 +321,7 @@ struct drm_crtc_funcs {
 
 	/*
 	 * Flip to the given framebuffer.  This implements the page
-	 * flip ioctl descibed in drm_mode.h, specifically, the
+	 * flip ioctl described in drm_mode.h, specifically, the
 	 * implementation must return immediately and block all
 	 * rendering to the current fb until the flip has completed.
 	 * If userspace set the event flag in the ioctl, the event
@@ -778,6 +778,7 @@ extern int drm_mode_gamma_get_ioctl(struct drm_device *dev,
 				    void *data, struct drm_file *file_priv);
 extern int drm_mode_gamma_set_ioctl(struct drm_device *dev,
 				    void *data, struct drm_file *file_priv);
+extern u8 *drm_find_cea_extension(struct edid *edid);
 extern bool drm_detect_hdmi_monitor(struct edid *edid);
 extern bool drm_detect_monitor_audio(struct edid *edid);
 extern int drm_mode_page_flip_ioctl(struct drm_device *dev,
diff --git a/include/drm/drm_mm.h b/include/drm/drm_mm.h
index b1e7809e5e15..c2f93a8ae2e1 100644
--- a/include/drm/drm_mm.h
+++ b/include/drm/drm_mm.h
@@ -56,7 +56,7 @@ struct drm_mm_node {
 };
 
 struct drm_mm {
-	/* List of all memory nodes that immediatly preceed a free hole. */
+	/* List of all memory nodes that immediately precede a free hole. */
 	struct list_head hole_stack;
 	/* head_node.node_list is the list of all memory nodes, ordered
 	 * according to the (increasing) start address of the memory node. */
diff --git a/include/drm/drm_mode.h b/include/drm/drm_mode.h
index ae6b7a3dbec7..c4961ea50a49 100644
--- a/include/drm/drm_mode.h
+++ b/include/drm/drm_mode.h
@@ -277,7 +277,7 @@ struct drm_mode_mode_cmd {
 #define DRM_MODE_CURSOR_MOVE	(1<<1)
 
 /*
- * depending on the value in flags diffrent members are used.
+ * depending on the value in flags different members are used.
  *
  * CURSOR_BO uses
  *    crtc
diff --git a/include/drm/drm_pciids.h b/include/drm/drm_pciids.h
index 820ee9029482..816e30cbd968 100644
--- a/include/drm/drm_pciids.h
+++ b/include/drm/drm_pciids.h
@@ -472,6 +472,8 @@
 	{0x1002, 0x9803, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_PALM|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
 	{0x1002, 0x9804, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_PALM|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
 	{0x1002, 0x9805, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_PALM|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
+	{0x1002, 0x9806, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_PALM|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
+	{0x1002, 0x9807, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_PALM|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
 	{0, 0, 0}
 
 #define r128_PCI_IDS \
diff --git a/include/drm/mga_drm.h b/include/drm/mga_drm.h
index c16097f99be0..fca817009e13 100644
--- a/include/drm/mga_drm.h
+++ b/include/drm/mga_drm.h
@@ -107,7 +107,7 @@
  */
 #define MGA_NR_SAREA_CLIPRECTS	8
 
-/* 2 heaps (1 for card, 1 for agp), each divided into upto 128
+/* 2 heaps (1 for card, 1 for agp), each divided into up to 128
  * regions, subject to a minimum region size of (1<<16) == 64k.
  *
  * Clients may subdivide regions internally, but when sharing between
diff --git a/include/drm/radeon_drm.h b/include/drm/radeon_drm.h
index 3dec41cf8342..3bce1a4fc305 100644
--- a/include/drm/radeon_drm.h
+++ b/include/drm/radeon_drm.h
@@ -641,7 +641,7 @@ typedef struct drm_radeon_vertex2 {
 } drm_radeon_vertex2_t;
 
 /* v1.3 - obsoletes drm_radeon_vertex2
- *      - allows arbitarily large cliprect list
+ *      - allows arbitrarily large cliprect list
  *      - allows updating of tcl packet, vector and scalar state
  *      - allows memory-efficient description of state updates
  *      - allows state to be emitted without a primitive
diff --git a/include/drm/savage_drm.h b/include/drm/savage_drm.h
index 4863cf6bf96f..818d49be2e6e 100644
--- a/include/drm/savage_drm.h
+++ b/include/drm/savage_drm.h
@@ -29,7 +29,7 @@
 #ifndef __SAVAGE_SAREA_DEFINES__
 #define __SAVAGE_SAREA_DEFINES__
 
-/* 2 heaps (1 for card, 1 for agp), each divided into upto 128
+/* 2 heaps (1 for card, 1 for agp), each divided into up to 128
  * regions, subject to a minimum region size of (1<<16) == 64k.
  *
  * Clients may subdivide regions internally, but when sharing between
diff --git a/include/drm/ttm/ttm_bo_api.h b/include/drm/ttm/ttm_bo_api.h
index 50852aad260a..62a0e4c4ceee 100644
--- a/include/drm/ttm/ttm_bo_api.h
+++ b/include/drm/ttm/ttm_bo_api.h
@@ -50,10 +50,10 @@ struct drm_mm_node;
  *
  * @fpfn:		first valid page frame number to put the object
  * @lpfn:		last valid page frame number to put the object
- * @num_placement:	number of prefered placements
- * @placement:		prefered placements
- * @num_busy_placement:	number of prefered placements when need to evict buffer
- * @busy_placement:	prefered placements when need to evict buffer
+ * @num_placement:	number of preferred placements
+ * @placement:		preferred placements
+ * @num_busy_placement:	number of preferred placements when need to evict buffer
+ * @busy_placement:	preferred placements when need to evict buffer
  *
  * Structure indicating the placement you request for an object.
  */
@@ -158,9 +158,9 @@ struct ttm_tt;
  * the object is destroyed.
  * @event_queue: Queue for processes waiting on buffer object status change.
  * @mem: structure describing current placement.
- * @persistant_swap_storage: Usually the swap storage is deleted for buffers
+ * @persistent_swap_storage: Usually the swap storage is deleted for buffers
  * pinned in physical memory. If this behaviour is not desired, this member
- * holds a pointer to a persistant shmem object.
+ * holds a pointer to a persistent shmem object.
  * @ttm: TTM structure holding system pages.
  * @evicted: Whether the object was evicted without user-space knowing.
  * @cpu_writes: For synchronization. Number of cpu writers.
@@ -221,7 +221,7 @@ struct ttm_buffer_object {
 	 */
 
 	struct ttm_mem_reg mem;
-	struct file *persistant_swap_storage;
+	struct file *persistent_swap_storage;
 	struct ttm_tt *ttm;
 	bool evicted;
 
@@ -459,9 +459,9 @@ extern void ttm_bo_synccpu_write_release(struct ttm_buffer_object *bo);
  * user buffer object.
  * @interruptible: If needing to sleep to wait for GPU resources,
  * sleep interruptible.
- * @persistant_swap_storage: Usually the swap storage is deleted for buffers
+ * @persistent_swap_storage: Usually the swap storage is deleted for buffers
  * pinned in physical memory. If this behaviour is not desired, this member
- * holds a pointer to a persistant shmem object. Typically, this would
+ * holds a pointer to a persistent shmem object. Typically, this would
  * point to the shmem object backing a GEM object if TTM is used to back a
  * GEM user interface.
  * @acc_size: Accounted size for this object.
@@ -490,7 +490,7 @@ extern int ttm_bo_init(struct ttm_bo_device *bdev,
 			uint32_t page_alignment,
 			unsigned long buffer_start,
 			bool interrubtible,
-			struct file *persistant_swap_storage,
+			struct file *persistent_swap_storage,
 			size_t acc_size,
 			void (*destroy) (struct ttm_buffer_object *));
 /**
@@ -506,9 +506,9 @@ extern int ttm_bo_init(struct ttm_bo_device *bdev,
  * user buffer object.
  * @interruptible: If needing to sleep while waiting for GPU resources,
  * sleep interruptible.
- * @persistant_swap_storage: Usually the swap storage is deleted for buffers
+ * @persistent_swap_storage: Usually the swap storage is deleted for buffers
  * pinned in physical memory. If this behaviour is not desired, this member
- * holds a pointer to a persistant shmem object. Typically, this would
+ * holds a pointer to a persistent shmem object. Typically, this would
  * point to the shmem object backing a GEM object if TTM is used to back a
  * GEM user interface.
  * @p_bo: On successful completion *p_bo points to the created object.
@@ -528,7 +528,7 @@ extern int ttm_bo_create(struct ttm_bo_device *bdev,
 				uint32_t page_alignment,
 				unsigned long buffer_start,
 				bool interruptible,
-				struct file *persistant_swap_storage,
+				struct file *persistent_swap_storage,
 				struct ttm_buffer_object **p_bo);
 
 /**
diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h
index efed0820d9fa..09af2d746d1c 100644
--- a/include/drm/ttm/ttm_bo_driver.h
+++ b/include/drm/ttm/ttm_bo_driver.h
@@ -122,7 +122,7 @@ struct ttm_backend {
 #define TTM_PAGE_FLAG_USER_DIRTY      (1 << 2)
 #define TTM_PAGE_FLAG_WRITE           (1 << 3)
 #define TTM_PAGE_FLAG_SWAPPED         (1 << 4)
-#define TTM_PAGE_FLAG_PERSISTANT_SWAP (1 << 5)
+#define TTM_PAGE_FLAG_PERSISTENT_SWAP (1 << 5)
 #define TTM_PAGE_FLAG_ZERO_ALLOC      (1 << 6)
 #define TTM_PAGE_FLAG_DMA32           (1 << 7)
 
@@ -223,9 +223,9 @@ struct ttm_mem_type_manager_func {
 	 * @mem::mm_node should be set to a non-null value, and
 	 * @mem::start should be set to a value identifying the beginning
 	 * of the range allocated, and the function should return zero.
-	 * If the memory region accomodate the buffer object, @mem::mm_node
+	 * If the memory region accommodate the buffer object, @mem::mm_node
 	 * should be set to NULL, and the function should return 0.
-	 * If a system error occured, preventing the request to be fulfilled,
+	 * If a system error occurred, preventing the request to be fulfilled,
 	 * the function should return a negative error code.
 	 *
 	 * Note that @mem::mm_node will only be dereferenced by
@@ -714,7 +714,7 @@ extern void ttm_tt_cache_flush(struct page *pages[], unsigned long num_pages);
  */
 extern int ttm_tt_set_placement_caching(struct ttm_tt *ttm, uint32_t placement);
 extern int ttm_tt_swapout(struct ttm_tt *ttm,
-			  struct file *persistant_swap_storage);
+			  struct file *persistent_swap_storage);
 
 /*
  * ttm_bo.c
@@ -841,7 +841,7 @@ extern void ttm_mem_io_unlock(struct ttm_mem_type_manager *man);
  * different order, either by will or as a result of a buffer being evicted
  * to make room for a buffer already reserved. (Buffers are reserved before
  * they are evicted). The following algorithm prevents such deadlocks from
- * occuring:
+ * occurring:
  * 1) Buffers are reserved with the lru spinlock held. Upon successful
  * reservation they are removed from the lru list. This stops a reserved buffer
  * from being evicted. However the lru spinlock is released between the time
diff --git a/include/drm/vmwgfx_drm.h b/include/drm/vmwgfx_drm.h
index 650e6bf6f69f..5c36432d9ce5 100644
--- a/include/drm/vmwgfx_drm.h
+++ b/include/drm/vmwgfx_drm.h
@@ -592,7 +592,7 @@ struct drm_vmw_stream_arg {
 /**
  * DRM_VMW_UPDATE_LAYOUT - Update layout
  *
- * Updates the prefered modes and connection status for connectors. The
+ * Updates the preferred modes and connection status for connectors. The
  * command conisits of one drm_vmw_update_layout_arg pointing out a array
  * of num_outputs drm_vmw_rect's.
  */
diff --git a/include/keys/ceph-type.h b/include/keys/ceph-type.h
new file mode 100644
index 000000000000..f69c4ac197a0
--- /dev/null
+++ b/include/keys/ceph-type.h
@@ -0,0 +1,8 @@
+#ifndef _KEYS_CEPH_TYPE_H
+#define _KEYS_CEPH_TYPE_H
+
+#include <linux/key.h>
+
+extern struct key_type key_type_ceph;
+
+#endif
diff --git a/include/linux/amba/clcd.h b/include/linux/amba/clcd.h
index 24d26efd1432..e82e3ee2c54a 100644
--- a/include/linux/amba/clcd.h
+++ b/include/linux/amba/clcd.h
@@ -136,7 +136,7 @@ struct clcd_board {
 	int	(*check)(struct clcd_fb *fb, struct fb_var_screeninfo *var);
 
 	/*
-	 * Compulsary.  Decode fb->fb.var into regs->*.  In the case of
+	 * Compulsory.  Decode fb->fb.var into regs->*.  In the case of
 	 * fixed timing, set regs->* to the register values required.
 	 */
 	void	(*decode)(struct clcd_fb *fb, struct clcd_regs *regs);
diff --git a/include/linux/amba/mmci.h b/include/linux/amba/mmci.h
index f60227088b7b..21114810c7c0 100644
--- a/include/linux/amba/mmci.h
+++ b/include/linux/amba/mmci.h
@@ -30,15 +30,15 @@ struct dma_chan;
  * @cd_invert: true if the gpio_cd pin value is active low
  * @capabilities: the capabilities of the block as implemented in
  * this platform, signify anything MMC_CAP_* from mmc/host.h
- * @dma_filter: function used to select an apropriate RX and TX
+ * @dma_filter: function used to select an appropriate RX and TX
  * DMA channel to be used for DMA, if and only if you're deploying the
  * generic DMA engine
  * @dma_rx_param: parameter passed to the DMA allocation
- * filter in order to select an apropriate RX channel. If
+ * filter in order to select an appropriate RX channel. If
  * there is a bidirectional RX+TX channel, then just specify
  * this and leave dma_tx_param set to NULL
  * @dma_tx_param: parameter passed to the DMA allocation
- * filter in order to select an apropriate TX channel. If this
+ * filter in order to select an appropriate TX channel. If this
  * is NULL the driver will attempt to use the RX channel as a
  * bidirectional channel
  */
diff --git a/include/linux/atmdev.h b/include/linux/atmdev.h
index 475f8c42c0e9..381f4cec8260 100644
--- a/include/linux/atmdev.h
+++ b/include/linux/atmdev.h
@@ -443,6 +443,7 @@ void atm_dev_signal_change(struct atm_dev *dev, char signal);
 
 void vcc_insert_socket(struct sock *sk);
 
+void atm_dev_release_vccs(struct atm_dev *dev);
 
 /*
  * This is approximately the algorithm used by alloc_skb.
diff --git a/include/linux/bch.h b/include/linux/bch.h
new file mode 100644
index 000000000000..295b4ef153bb
--- /dev/null
+++ b/include/linux/bch.h
@@ -0,0 +1,79 @@
+/*
+ * Generic binary BCH encoding/decoding library
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc., 51
+ * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Copyright © 2011 Parrot S.A.
+ *
+ * Author: Ivan Djelic <ivan.djelic@parrot.com>
+ *
+ * Description:
+ *
+ * This library provides runtime configurable encoding/decoding of binary
+ * Bose-Chaudhuri-Hocquenghem (BCH) codes.
+*/
+#ifndef _BCH_H
+#define _BCH_H
+
+#include <linux/types.h>
+
+/**
+ * struct bch_control - BCH control structure
+ * @m:          Galois field order
+ * @n:          maximum codeword size in bits (= 2^m-1)
+ * @t:          error correction capability in bits
+ * @ecc_bits:   ecc exact size in bits, i.e. generator polynomial degree (<=m*t)
+ * @ecc_bytes:  ecc max size (m*t bits) in bytes
+ * @a_pow_tab:  Galois field GF(2^m) exponentiation lookup table
+ * @a_log_tab:  Galois field GF(2^m) log lookup table
+ * @mod8_tab:   remainder generator polynomial lookup tables
+ * @ecc_buf:    ecc parity words buffer
+ * @ecc_buf2:   ecc parity words buffer
+ * @xi_tab:     GF(2^m) base for solving degree 2 polynomial roots
+ * @syn:        syndrome buffer
+ * @cache:      log-based polynomial representation buffer
+ * @elp:        error locator polynomial
+ * @poly_2t:    temporary polynomials of degree 2t
+ */
+struct bch_control {
+	unsigned int    m;
+	unsigned int    n;
+	unsigned int    t;
+	unsigned int    ecc_bits;
+	unsigned int    ecc_bytes;
+/* private: */
+	uint16_t       *a_pow_tab;
+	uint16_t       *a_log_tab;
+	uint32_t       *mod8_tab;
+	uint32_t       *ecc_buf;
+	uint32_t       *ecc_buf2;
+	unsigned int   *xi_tab;
+	unsigned int   *syn;
+	int            *cache;
+	struct gf_poly *elp;
+	struct gf_poly *poly_2t[4];
+};
+
+struct bch_control *init_bch(int m, int t, unsigned int prim_poly);
+
+void free_bch(struct bch_control *bch);
+
+void encode_bch(struct bch_control *bch, const uint8_t *data,
+		unsigned int len, uint8_t *ecc);
+
+int decode_bch(struct bch_control *bch, const uint8_t *data, unsigned int len,
+	       const uint8_t *recv_ecc, const uint8_t *calc_ecc,
+	       const unsigned int *syn, unsigned int *errloc);
+
+#endif /* _BCH_H */
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 16a902f099ac..32176cc8e715 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -1206,6 +1206,7 @@ struct blk_integrity {
 	struct kobject		kobj;
 };
 
+extern bool blk_integrity_is_initialized(struct gendisk *);
 extern int blk_integrity_register(struct gendisk *, struct blk_integrity *);
 extern void blk_integrity_unregister(struct gendisk *);
 extern int blk_integrity_compare(struct gendisk *, struct gendisk *);
@@ -1262,6 +1263,7 @@ queue_max_integrity_segments(struct request_queue *q)
 #define queue_max_integrity_segments(a)		(0)
 #define blk_integrity_merge_rq(a, b, c)		(0)
 #define blk_integrity_merge_bio(a, b, c)	(0)
+#define blk_integrity_is_initialized(a)		(0)
 
 #endif /* CONFIG_BLK_DEV_INTEGRITY */
 
diff --git a/include/linux/can/core.h b/include/linux/can/core.h
index 6c507bea275f..6f70a6d3a16e 100644
--- a/include/linux/can/core.h
+++ b/include/linux/can/core.h
@@ -36,10 +36,10 @@
  * @prot:       pointer to struct proto structure.
  */
 struct can_proto {
-	int              type;
-	int              protocol;
-	struct proto_ops *ops;
-	struct proto     *prot;
+	int type;
+	int protocol;
+	const struct proto_ops *ops;
+	struct proto *prot;
 };
 
 /* function prototypes for the CAN networklayer core (af_can.c) */
@@ -58,5 +58,6 @@ extern void can_rx_unregister(struct net_device *dev, canid_t can_id,
 			      void *data);
 
 extern int can_send(struct sk_buff *skb, int loop);
+extern int can_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg);
 
 #endif /* CAN_CORE_H */
diff --git a/include/linux/can/error.h b/include/linux/can/error.h
index d4127fd9e681..5958074302a4 100644
--- a/include/linux/can/error.h
+++ b/include/linux/can/error.h
@@ -51,7 +51,7 @@
 #define CAN_ERR_PROT_BIT1        0x10 /* unable to send recessive bit */
 #define CAN_ERR_PROT_OVERLOAD    0x20 /* bus overload */
 #define CAN_ERR_PROT_ACTIVE      0x40 /* active error announcement */
-#define CAN_ERR_PROT_TX          0x80 /* error occured on transmission */
+#define CAN_ERR_PROT_TX          0x80 /* error occurred on transmission */
 
 /* error in CAN protocol (location) / data[3] */
 #define CAN_ERR_PROT_LOC_UNSPEC  0x00 /* unspecified */
diff --git a/include/linux/can/netlink.h b/include/linux/can/netlink.h
index 3250de935e1a..34542d374dd8 100644
--- a/include/linux/can/netlink.h
+++ b/include/linux/can/netlink.h
@@ -17,7 +17,7 @@
 /*
  * CAN bit-timing parameters
  *
- * For futher information, please read chapter "8 BIT TIMING
+ * For further information, please read chapter "8 BIT TIMING
  * REQUIREMENTS" of the "Bosch CAN Specification version 2.0"
  * at http://www.semiconductors.bosch.de/pdf/can2spec.pdf.
  */
diff --git a/include/linux/cdk.h b/include/linux/cdk.h
index 0908daf7bf56..80093a8d4f64 100644
--- a/include/linux/cdk.h
+++ b/include/linux/cdk.h
@@ -149,7 +149,7 @@ typedef struct cdkhdr {
 /*
  *	Define the memory mapping structure. This structure is pointed to by
  *	the memp field in the stlcdkhdr struct. As many as these structures
- *	as required are layed out in shared memory to define how the rest of
+ *	as required are laid out in shared memory to define how the rest of
  *	shared memory is divided up. There will be one for each port.
  */
 typedef struct cdkmem {
diff --git a/include/linux/ceph/auth.h b/include/linux/ceph/auth.h
index 7fff521d7eb5..aa13392a7efb 100644
--- a/include/linux/ceph/auth.h
+++ b/include/linux/ceph/auth.h
@@ -67,12 +67,12 @@ struct ceph_auth_client {
 	bool negotiating;       /* true if negotiating protocol */
 	const char *name;       /* entity name */
 	u64 global_id;          /* our unique id in system */
-	const char *secret;     /* our secret key */
+	const struct ceph_crypto_key *key;     /* our secret key */
 	unsigned want_keys;     /* which services we want */
 };
 
 extern struct ceph_auth_client *ceph_auth_init(const char *name,
-					       const char *secret);
+					       const struct ceph_crypto_key *key);
 extern void ceph_auth_destroy(struct ceph_auth_client *ac);
 
 extern void ceph_auth_reset(struct ceph_auth_client *ac);
diff --git a/include/linux/ceph/libceph.h b/include/linux/ceph/libceph.h
index 0d2e0fffb470..6365f041745b 100644
--- a/include/linux/ceph/libceph.h
+++ b/include/linux/ceph/libceph.h
@@ -61,7 +61,7 @@ struct ceph_options {
 					      pointer type of args */
 	int num_mon;
 	char *name;
-	char *secret;
+	struct ceph_crypto_key *key;
 };
 
 /*
diff --git a/include/linux/cfag12864b.h b/include/linux/cfag12864b.h
index 6f9f19d66591..b454dfce60d9 100644
--- a/include/linux/cfag12864b.h
+++ b/include/linux/cfag12864b.h
@@ -44,7 +44,7 @@ extern unsigned char * cfag12864b_buffer;
 /*
  * Get the refresh rate of the LCD
  *
- * Returns the refresh rate (hertzs).
+ * Returns the refresh rate (hertz).
  */
 extern unsigned int cfag12864b_getrate(void);
 
diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index e654fa239916..5ac7ebc36dbb 100644
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -240,7 +240,7 @@ struct cgroup {
 	/* For RCU-protected deletion */
 	struct rcu_head rcu_head;
 
-	/* List of events which userspace want to recieve */
+	/* List of events which userspace want to receive */
 	struct list_head event_list;
 	spinlock_t event_list_lock;
 };
diff --git a/include/linux/cm4000_cs.h b/include/linux/cm4000_cs.h
index 72bfefdbd767..3c4aac406175 100644
--- a/include/linux/cm4000_cs.h
+++ b/include/linux/cm4000_cs.h
@@ -20,7 +20,7 @@ typedef struct atreq {
 } atreq_t;
 
 
-/* what is particularly stupid in the original driver is the arch-dependant
+/* what is particularly stupid in the original driver is the arch-dependent
  * member sizes. This leads to CONFIG_COMPAT breakage, since 32bit userspace
  * will lay out the structure members differently than the 64bit kernel.
  *
diff --git a/include/linux/configfs.h b/include/linux/configfs.h
index ddb7a97c78c2..645778ad899b 100644
--- a/include/linux/configfs.h
+++ b/include/linux/configfs.h
@@ -218,7 +218,7 @@ static ssize_t _item##_attr_store(struct config_item *item,		\
  * group children.  default_groups may coexist alongsize make_group() or
  * make_item(), but if the group wishes to have only default_groups
  * children (disallowing mkdir(2)), it need not provide either function.
- * If the group has commit(), it supports pending and commited (active)
+ * If the group has commit(), it supports pending and committed (active)
  * items.
  */
 struct configfs_item_operations {
diff --git a/include/linux/connector.h b/include/linux/connector.h
index bcafc942e5e4..7c60d0942adb 100644
--- a/include/linux/connector.h
+++ b/include/linux/connector.h
@@ -88,8 +88,6 @@ struct cn_queue_dev {
 	atomic_t refcnt;
 	unsigned char name[CN_CBQ_NAMELEN];
 
-	struct workqueue_struct *cn_queue;
-
 	struct list_head queue_list;
 	spinlock_t queue_lock;
 
@@ -101,20 +99,13 @@ struct cn_callback_id {
 	struct cb_id id;
 };
 
-struct cn_callback_data {
-	struct sk_buff *skb;
-	void (*callback) (struct cn_msg *, struct netlink_skb_parms *);
-
-	void *free;
-};
-
 struct cn_callback_entry {
 	struct list_head callback_entry;
-	struct work_struct work;
+	atomic_t refcnt;
 	struct cn_queue_dev *pdev;
 
 	struct cn_callback_id id;
-	struct cn_callback_data data;
+	void (*callback) (struct cn_msg *, struct netlink_skb_parms *);
 
 	u32 seq, group;
 };
@@ -138,13 +129,12 @@ int cn_queue_add_callback(struct cn_queue_dev *dev, const char *name,
 			  struct cb_id *id,
 			  void (*callback)(struct cn_msg *, struct netlink_skb_parms *));
 void cn_queue_del_callback(struct cn_queue_dev *dev, struct cb_id *id);
+void cn_queue_release_callback(struct cn_callback_entry *);
 
 struct cn_queue_dev *cn_queue_alloc_dev(const char *name, struct sock *);
 void cn_queue_free_dev(struct cn_queue_dev *dev);
 
 int cn_cb_equal(struct cb_id *, struct cb_id *);
 
-void cn_queue_wrapper(struct work_struct *work);
-
 #endif				/* __KERNEL__ */
 #endif				/* __CONNECTOR_H */
diff --git a/include/linux/cper.h b/include/linux/cper.h
index 372a25839fd1..c23049496531 100644
--- a/include/linux/cper.h
+++ b/include/linux/cper.h
@@ -310,7 +310,7 @@ struct cper_sec_proc_ia {
 	__u8	cpuid[48];
 };
 
-/* IA32/X64 Processor Error Infomation Structure */
+/* IA32/X64 Processor Error Information Structure */
 struct cper_ia_err_info {
 	uuid_le	err_type;
 	__u64	validation_bits;
diff --git a/include/linux/davinci_emac.h b/include/linux/davinci_emac.h
index 5dd428532f79..542888504994 100644
--- a/include/linux/davinci_emac.h
+++ b/include/linux/davinci_emac.h
@@ -36,6 +36,7 @@ struct emac_platform_data {
 
 	u8 rmii_en;
 	u8 version;
+	bool no_bd_ram;
 	void (*interrupt_enable) (void);
 	void (*interrupt_disable) (void);
 };
diff --git a/include/linux/decompress/mm.h b/include/linux/decompress/mm.h
index 4cb72b920c74..7925bf0ee836 100644
--- a/include/linux/decompress/mm.h
+++ b/include/linux/decompress/mm.h
@@ -16,7 +16,7 @@
 
 /*
  * Some architectures want to ensure there is no local data in their
- * pre-boot environment, so that data can arbitarily relocated (via
+ * pre-boot environment, so that data can arbitrarily relocated (via
  * GOT references).  This is achieved by defining STATIC_RW_DATA to
  * be null.
  */
diff --git a/include/linux/device.h b/include/linux/device.h
index 144ec135875f..ab8dfc095709 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -633,8 +633,12 @@ static inline int devtmpfs_mount(const char *mountpoint) { return 0; }
 /* drivers/base/power/shutdown.c */
 extern void device_shutdown(void);
 
+#ifndef CONFIG_ARCH_NO_SYSDEV_OPS
 /* drivers/base/sys.c */
 extern void sysdev_shutdown(void);
+#else
+static inline void sysdev_shutdown(void) { }
+#endif
 
 /* debugging and troubleshooting/diagnostic helpers. */
 extern const char *dev_driver_string(const struct device *dev);
diff --git a/include/linux/dm-ioctl.h b/include/linux/dm-ioctl.h
index 78bbf47bbb96..3708455ee6c3 100644
--- a/include/linux/dm-ioctl.h
+++ b/include/linux/dm-ioctl.h
@@ -267,9 +267,9 @@ enum {
 #define DM_DEV_SET_GEOMETRY	_IOWR(DM_IOCTL, DM_DEV_SET_GEOMETRY_CMD, struct dm_ioctl)
 
 #define DM_VERSION_MAJOR	4
-#define DM_VERSION_MINOR	19
-#define DM_VERSION_PATCHLEVEL	1
-#define DM_VERSION_EXTRA	"-ioctl (2011-01-07)"
+#define DM_VERSION_MINOR	20
+#define DM_VERSION_PATCHLEVEL	0
+#define DM_VERSION_EXTRA	"-ioctl (2011-02-02)"
 
 /* Status bits */
 #define DM_READONLY_FLAG	(1 << 0) /* In/Out */
@@ -328,4 +328,10 @@ enum {
  */
 #define DM_UUID_FLAG			(1 << 14) /* In */
 
+/*
+ * If set, all buffers are wiped after use. Use when sending
+ * or requesting sensitive data such as an encryption key.
+ */
+#define DM_SECURE_DATA_FLAG		(1 << 15) /* In */
+
 #endif				/* _LINUX_DM_IOCTL_H */
diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index 9bebd7f16ef1..eee7addec282 100644
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -434,7 +434,7 @@ struct dma_tx_state {
  *	zero or error code
  * @device_tx_status: poll for transaction completion, the optional
  *	txstate parameter can be supplied with a pointer to get a
- *	struct with auxilary transfer status information, otherwise the call
+ *	struct with auxiliary transfer status information, otherwise the call
  *	will just return a simple status code
  * @device_issue_pending: push pending transactions to hardware
  */
diff --git a/include/linux/drbd.h b/include/linux/drbd.h
index ef44c7a0638c..cec467f5d676 100644
--- a/include/linux/drbd.h
+++ b/include/linux/drbd.h
@@ -36,7 +36,7 @@
 #include <sys/wait.h>
 #include <limits.h>
 
-/* Altough the Linux source code makes a difference between
+/* Although the Linux source code makes a difference between
    generic endianness and the bitfields' endianness, there is no
    architecture as of Linux-2.6.24-rc4 where the bitfileds' endianness
    does not match the generic endianness. */
@@ -53,10 +53,10 @@
 
 
 extern const char *drbd_buildtag(void);
-#define REL_VERSION "8.3.9"
+#define REL_VERSION "8.3.10"
 #define API_VERSION 88
 #define PRO_VERSION_MIN 86
-#define PRO_VERSION_MAX 95
+#define PRO_VERSION_MAX 96
 
 
 enum drbd_io_error_p {
@@ -96,8 +96,14 @@ enum drbd_on_no_data {
 	OND_SUSPEND_IO
 };
 
+enum drbd_on_congestion {
+	OC_BLOCK,
+	OC_PULL_AHEAD,
+	OC_DISCONNECT,
+};
+
 /* KEEP the order, do not delete or insert. Only append. */
-enum drbd_ret_codes {
+enum drbd_ret_code {
 	ERR_CODE_BASE		= 100,
 	NO_ERROR		= 101,
 	ERR_LOCAL_ADDR		= 102,
@@ -146,6 +152,9 @@ enum drbd_ret_codes {
 	ERR_PERM		= 152,
 	ERR_NEED_APV_93		= 153,
 	ERR_STONITH_AND_PROT_A  = 154,
+	ERR_CONG_NOT_PROTO_A	= 155,
+	ERR_PIC_AFTER_DEP	= 156,
+	ERR_PIC_PEER_DEP	= 157,
 
 	/* insert new ones above this line */
 	AFTER_LAST_ERR_CODE
@@ -175,7 +184,7 @@ enum drbd_conns {
 	/* These temporal states are all used on the way
 	 * from >= C_CONNECTED to Unconnected.
 	 * The 'disconnect reason' states
-	 * I do not allow to change beween them. */
+	 * I do not allow to change between them. */
 	C_TIMEOUT,
 	C_BROKEN_PIPE,
 	C_NETWORK_FAILURE,
@@ -199,6 +208,10 @@ enum drbd_conns {
 	C_VERIFY_T,
 	C_PAUSED_SYNC_S,
 	C_PAUSED_SYNC_T,
+
+	C_AHEAD,
+	C_BEHIND,
+
 	C_MASK = 31
 };
 
@@ -259,7 +272,7 @@ union drbd_state {
 	unsigned int i;
 };
 
-enum drbd_state_ret_codes {
+enum drbd_state_rv {
 	SS_CW_NO_NEED = 4,
 	SS_CW_SUCCESS = 3,
 	SS_NOTHING_TO_DO = 2,
@@ -290,7 +303,7 @@ enum drbd_state_ret_codes {
 extern const char *drbd_conn_str(enum drbd_conns);
 extern const char *drbd_role_str(enum drbd_role);
 extern const char *drbd_disk_str(enum drbd_disk_state);
-extern const char *drbd_set_st_err_str(enum drbd_state_ret_codes);
+extern const char *drbd_set_st_err_str(enum drbd_state_rv);
 
 #define SHARED_SECRET_MAX 64
 
diff --git a/include/linux/drbd_limits.h b/include/linux/drbd_limits.h
index 4ac33f34b77e..246f576c981d 100644
--- a/include/linux/drbd_limits.h
+++ b/include/linux/drbd_limits.h
@@ -16,7 +16,8 @@
 #define DEBUG_RANGE_CHECK 0
 
 #define DRBD_MINOR_COUNT_MIN 1
-#define DRBD_MINOR_COUNT_MAX 255
+#define DRBD_MINOR_COUNT_MAX 256
+#define DRBD_MINOR_COUNT_DEF 32
 
 #define DRBD_DIALOG_REFRESH_MIN 0
 #define DRBD_DIALOG_REFRESH_MAX 600
@@ -42,7 +43,7 @@
 
 /* net { */
   /* timeout, unit centi seconds
-   * more than one minute timeout is not usefull */
+   * more than one minute timeout is not useful */
 #define DRBD_TIMEOUT_MIN 1
 #define DRBD_TIMEOUT_MAX 600
 #define DRBD_TIMEOUT_DEF 60       /* 6 seconds */
@@ -67,7 +68,7 @@
 #define DRBD_MAX_EPOCH_SIZE_MAX 20000
 #define DRBD_MAX_EPOCH_SIZE_DEF 2048
 
-  /* I don't think that a tcp send buffer of more than 10M is usefull */
+  /* I don't think that a tcp send buffer of more than 10M is useful */
 #define DRBD_SNDBUF_SIZE_MIN  0
 #define DRBD_SNDBUF_SIZE_MAX  (10<<20)
 #define DRBD_SNDBUF_SIZE_DEF  0
@@ -100,7 +101,7 @@
 #define DRBD_RATE_MAX (4 << 20)
 #define DRBD_RATE_DEF 250  /* kb/second */
 
-  /* less than 7 would hit performance unneccessarily.
+  /* less than 7 would hit performance unnecessarily.
    * 3833 is the largest prime that still does fit
    * into 64 sectors of activity log */
 #define DRBD_AL_EXTENTS_MIN  7
@@ -129,6 +130,7 @@
 #define DRBD_AFTER_SB_2P_DEF ASB_DISCONNECT
 #define DRBD_RR_CONFLICT_DEF ASB_DISCONNECT
 #define DRBD_ON_NO_DATA_DEF OND_IO_ERROR
+#define DRBD_ON_CONGESTION_DEF OC_BLOCK
 
 #define DRBD_MAX_BIO_BVECS_MIN 0
 #define DRBD_MAX_BIO_BVECS_MAX 128
@@ -154,5 +156,13 @@
 #define DRBD_C_MIN_RATE_MAX     (4 << 20)
 #define DRBD_C_MIN_RATE_DEF     4096
 
+#define DRBD_CONG_FILL_MIN	0
+#define DRBD_CONG_FILL_MAX	(10<<21) /* 10GByte in sectors */
+#define DRBD_CONG_FILL_DEF	0
+
+#define DRBD_CONG_EXTENTS_MIN	DRBD_AL_EXTENTS_MIN
+#define DRBD_CONG_EXTENTS_MAX	DRBD_AL_EXTENTS_MAX
+#define DRBD_CONG_EXTENTS_DEF	DRBD_AL_EXTENTS_DEF
+
 #undef RANGE
 #endif
diff --git a/include/linux/drbd_nl.h b/include/linux/drbd_nl.h
index ade91107c9a5..ab6159e4fcf0 100644
--- a/include/linux/drbd_nl.h
+++ b/include/linux/drbd_nl.h
@@ -56,6 +56,9 @@ NL_PACKET(net_conf, 5,
 	NL_INTEGER(	39,	T_MAY_IGNORE,	rr_conflict)
 	NL_INTEGER(	40,	T_MAY_IGNORE,	ping_timeo)
 	NL_INTEGER(	67,	T_MAY_IGNORE,	rcvbuf_size)
+	NL_INTEGER(	81,	T_MAY_IGNORE,	on_congestion)
+	NL_INTEGER(	82,	T_MAY_IGNORE,	cong_fill)
+	NL_INTEGER(	83,	T_MAY_IGNORE,	cong_extents)
 	  /* 59 addr_family was available in GIT, never released */
 	NL_BIT(		60,	T_MANDATORY,	mind_af)
 	NL_BIT(		27,	T_MAY_IGNORE,	want_lose)
@@ -66,7 +69,9 @@ NL_PACKET(net_conf, 5,
 	NL_BIT(		70,	T_MANDATORY,	dry_run)
 )
 
-NL_PACKET(disconnect, 6, )
+NL_PACKET(disconnect, 6,
+	NL_BIT(		84,	T_MAY_IGNORE,	force)
+)
 
 NL_PACKET(resize, 7,
 	NL_INT64(		29,	T_MAY_IGNORE,	resize_size)
@@ -143,9 +148,13 @@ NL_PACKET(new_c_uuid, 26,
        NL_BIT(		63,	T_MANDATORY,	clear_bm)
 )
 
+#ifdef NL_RESPONSE
+NL_RESPONSE(return_code_only, 27)
+#endif
+
 #undef NL_PACKET
 #undef NL_INTEGER
 #undef NL_INT64
 #undef NL_BIT
 #undef NL_STRING
-
+#undef NL_RESPONSE
diff --git a/include/linux/drbd_tag_magic.h b/include/linux/drbd_tag_magic.h
index fcdff8410e99..f14a165e82dc 100644
--- a/include/linux/drbd_tag_magic.h
+++ b/include/linux/drbd_tag_magic.h
@@ -7,6 +7,7 @@
 /* declare packet_type enums */
 enum packet_types {
 #define NL_PACKET(name, number, fields) P_ ## name = number,
+#define NL_RESPONSE(name, number) P_ ## name = number,
 #define NL_INTEGER(pn, pr, member)
 #define NL_INT64(pn, pr, member)
 #define NL_BIT(pn, pr, member)
diff --git a/include/linux/elevator.h b/include/linux/elevator.h
index d93efcc44570..21a8ebf2dc3a 100644
--- a/include/linux/elevator.h
+++ b/include/linux/elevator.h
@@ -101,7 +101,6 @@ extern void elv_dispatch_sort(struct request_queue *, struct request *);
 extern void elv_dispatch_add_tail(struct request_queue *, struct request *);
 extern void elv_add_request(struct request_queue *, struct request *, int);
 extern void __elv_add_request(struct request_queue *, struct request *, int);
-extern void elv_insert(struct request_queue *, struct request *, int);
 extern int elv_merge(struct request_queue *, struct request **, struct bio *);
 extern int elv_try_merge(struct request *, struct bio *);
 extern void elv_merge_requests(struct request_queue *, struct request *,
diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h
index b297f288f6eb..dc80d8294247 100644
--- a/include/linux/ethtool.h
+++ b/include/linux/ethtool.h
@@ -614,7 +614,7 @@ struct ethtool_sfeatures {
  * values of corresponding bits in features[].requested. Bits in .requested
  * not set in .valid or not changeable are ignored.
  *
- * Returns %EINVAL when .valid contains undefined or never-changable bits
+ * Returns %EINVAL when .valid contains undefined or never-changeable bits
  * or size is not equal to required number of features words (32-bit blocks).
  * Returns >= 0 if request was completed; bits set in the value mean:
  *   %ETHTOOL_F_UNSUPPORTED - there were bits set in .valid that are not
@@ -648,6 +648,9 @@ enum ethtool_sfeatures_retval_bits {
 
 #include <linux/rculist.h>
 
+/* needed by dev_disable_lro() */
+extern int __ethtool_set_flags(struct net_device *dev, u32 flags);
+
 struct ethtool_rx_ntuple_flow_spec_container {
 	struct ethtool_rx_ntuple_flow_spec fs;
 	struct list_head list;
@@ -677,6 +680,7 @@ int ethtool_op_set_ufo(struct net_device *dev, u32 data);
 u32 ethtool_op_get_flags(struct net_device *dev);
 int ethtool_op_set_flags(struct net_device *dev, u32 data, u32 supported);
 void ethtool_ntuple_flush(struct net_device *dev);
+bool ethtool_invalid_flags(struct net_device *dev, u32 data, u32 supported);
 
 /**
  * &ethtool_ops - Alter and report network device settings
diff --git a/include/linux/eventpoll.h b/include/linux/eventpoll.h
index f6856a5a1d4b..f362733186a5 100644
--- a/include/linux/eventpoll.h
+++ b/include/linux/eventpoll.h
@@ -1,5 +1,5 @@
 /*
- *  include/linux/eventpoll.h ( Efficent event polling implementation )
+ *  include/linux/eventpoll.h ( Efficient event polling implementation )
  *  Copyright (C) 2001,...,2006	 Davide Libenzi
  *
  *  This program is free software; you can redistribute it and/or modify
diff --git a/include/linux/exportfs.h b/include/linux/exportfs.h
index 33a42f24b275..3a4cef5322dc 100644
--- a/include/linux/exportfs.h
+++ b/include/linux/exportfs.h
@@ -120,7 +120,7 @@ struct fid {
  * encode_fh:
  *    @encode_fh should store in the file handle fragment @fh (using at most
  *    @max_len bytes) information that can be used by @decode_fh to recover the
- *    file refered to by the &struct dentry @de.  If the @connectable flag is
+ *    file referred to by the &struct dentry @de.  If the @connectable flag is
  *    set, the encode_fh() should store sufficient information so that a good
  *    attempt can be made to find not only the file but also it's place in the
  *    filesystem.   This typically means storing a reference to de->d_parent in
diff --git a/include/linux/fb.h b/include/linux/fb.h
index b2a36391d2a1..df728c1c29ed 100644
--- a/include/linux/fb.h
+++ b/include/linux/fb.h
@@ -534,14 +534,14 @@ struct fb_cursor_user {
 #define FB_EVENT_GET_CONSOLE_MAP        0x07
 /*      CONSOLE-SPECIFIC: set console to framebuffer mapping */
 #define FB_EVENT_SET_CONSOLE_MAP        0x08
-/*      A hardware display blank change occured */
+/*      A hardware display blank change occurred */
 #define FB_EVENT_BLANK                  0x09
 /*      Private modelist is to be replaced */
 #define FB_EVENT_NEW_MODELIST           0x0A
 /*	The resolution of the passed in fb_info about to change and
         all vc's should be changed         */
 #define FB_EVENT_MODE_CHANGE_ALL	0x0B
-/*	A software display blank change occured */
+/*	A software display blank change occurred */
 #define FB_EVENT_CONBLANK               0x0C
 /*      Get drawing requirements        */
 #define FB_EVENT_GET_REQ                0x0D
@@ -805,7 +805,7 @@ struct fb_tile_ops {
 /* A driver may set this flag to indicate that it does want a set_par to be
  * called every time when fbcon_switch is executed. The advantage is that with
  * this flag set you can really be sure that set_par is always called before
- * any of the functions dependant on the correct hardware state or altering
+ * any of the functions dependent on the correct hardware state or altering
  * that state, even if you are using some broken X releases. The disadvantage
  * is that it introduces unwanted delays to every console switch if set_par
  * is slow. It is a good idea to try this flag in the drivers initialization
@@ -877,7 +877,7 @@ struct fb_info {
 	void *fbcon_par;                /* fbcon use-only private area */
 	/* From here on everything is device dependent */
 	void *par;
-	/* we need the PCI or similiar aperture base/size not
+	/* we need the PCI or similar aperture base/size not
 	   smem_start/size as smem_start may just be an object
 	   allocated inside the aperture so may not actually overlap */
 	struct apertures_struct {
diff --git a/include/linux/firewire-cdev.h b/include/linux/firewire-cdev.h
index 59ea406be7f6..4ff09889c5c0 100644
--- a/include/linux/firewire-cdev.h
+++ b/include/linux/firewire-cdev.h
@@ -900,7 +900,7 @@ struct fw_cdev_get_cycle_timer2 {
 
 /**
  * struct fw_cdev_allocate_iso_resource - (De)allocate a channel or bandwidth
- * @closure:	Passed back to userspace in correponding iso resource events
+ * @closure:	Passed back to userspace in corresponding iso resource events
  * @channels:	Isochronous channels of which one is to be (de)allocated
  * @bandwidth:	Isochronous bandwidth units to be (de)allocated
  * @handle:	Handle to the allocation, written by the kernel (only valid in
diff --git a/include/linux/fs.h b/include/linux/fs.h
index ce7e18555197..dbd860af0804 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -357,6 +357,8 @@ struct inodes_stat_t {
 #define FS_TOPDIR_FL			0x00020000 /* Top of directory hierarchies*/
 #define FS_EXTENT_FL			0x00080000 /* Extents */
 #define FS_DIRECTIO_FL			0x00100000 /* Use direct i/o */
+#define FS_NOCOW_FL			0x00800000 /* Do not cow file */
+#define FS_COW_FL			0x02000000 /* Cow file */
 #define FS_RESERVED_FL			0x80000000 /* reserved for ext2 lib */
 
 #define FS_FL_USER_VISIBLE		0x0003DFFF /* User visible flags */
@@ -463,7 +465,7 @@ struct iattr {
 	struct timespec	ia_ctime;
 
 	/*
-	 * Not an attribute, but an auxilary info for filesystems wanting to
+	 * Not an attribute, but an auxiliary info for filesystems wanting to
 	 * implement an ftruncate() like method.  NOTE: filesystem should
 	 * check for (ia_valid & ATTR_FILE), and not for (ia_file != NULL).
 	 */
@@ -611,6 +613,8 @@ struct address_space_operations {
 	int (*error_remove_page)(struct address_space *, struct page *);
 };
 
+extern const struct address_space_operations empty_aops;
+
 /*
  * pagecache_write_begin/pagecache_write_end must be used by general code
  * to write into the pagecache.
@@ -645,7 +649,7 @@ struct address_space {
 } __attribute__((aligned(sizeof(long))));
 	/*
 	 * On most architectures that alignment is already the case; but
-	 * must be enforced here for CRIS, to let the least signficant bit
+	 * must be enforced here for CRIS, to let the least significant bit
 	 * of struct page's "mapping" pointer be used for PAGE_MAPPING_ANON.
 	 */
 
@@ -1636,7 +1640,7 @@ struct super_operations {
 };
 
 /*
- * Inode state bits.  Protected by inode_lock.
+ * Inode state bits.  Protected by inode->i_lock
  *
  * Three bits determine the dirty state of the inode, I_DIRTY_SYNC,
  * I_DIRTY_DATASYNC and I_DIRTY_PAGES.
diff --git a/include/linux/fscache-cache.h b/include/linux/fscache-cache.h
index b8581c09d19f..76427e688d15 100644
--- a/include/linux/fscache-cache.h
+++ b/include/linux/fscache-cache.h
@@ -236,7 +236,7 @@ struct fscache_cache_ops {
 	/* unpin an object in the cache */
 	void (*unpin_object)(struct fscache_object *object);
 
-	/* store the updated auxilliary data on an object */
+	/* store the updated auxiliary data on an object */
 	void (*update_object)(struct fscache_object *object);
 
 	/* discard the resources pinned by an object and effect retirement if
diff --git a/include/linux/fscache.h b/include/linux/fscache.h
index ec0dad5ab90f..7c4d72f5581f 100644
--- a/include/linux/fscache.h
+++ b/include/linux/fscache.h
@@ -102,9 +102,9 @@ struct fscache_cookie_def {
 	 */
 	void (*get_attr)(const void *cookie_netfs_data, uint64_t *size);
 
-	/* get the auxilliary data from netfs data
+	/* get the auxiliary data from netfs data
 	 * - this function can be absent if the index carries no state data
-	 * - should store the auxilliary data in the buffer
+	 * - should store the auxiliary data in the buffer
 	 * - should return the amount of amount stored
 	 * - not permitted to return an error
 	 * - the netfs data from the cookie being used as the source is
@@ -117,7 +117,7 @@ struct fscache_cookie_def {
 	/* consult the netfs about the state of an object
 	 * - this function can be absent if the index carries no state data
 	 * - the netfs data from the cookie being used as the target is
-	 *   presented, as is the auxilliary data
+	 *   presented, as is the auxiliary data
 	 */
 	enum fscache_checkaux (*check_aux)(void *cookie_netfs_data,
 					   const void *data,
diff --git a/include/linux/hid.h b/include/linux/hid.h
index bb29bb1dbd2f..42f7e2fb501f 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -799,7 +799,7 @@ static inline int __must_check hid_parse(struct hid_device *hdev)
  *
  * Call this in probe function *after* hid_parse. This will setup HW buffers
  * and start the device (if not deffered to device open). hid_hw_stop must be
- * called if this was successfull.
+ * called if this was successful.
  */
 static inline int __must_check hid_hw_start(struct hid_device *hdev,
 		unsigned int connect_mask)
diff --git a/include/linux/hp_sdc.h b/include/linux/hp_sdc.h
index 9db3d454887f..d392975d8887 100644
--- a/include/linux/hp_sdc.h
+++ b/include/linux/hp_sdc.h
@@ -101,7 +101,7 @@ int hp_sdc_dequeue_transaction(hp_sdc_transaction *this);
 #define HP_SDC_STATUS_REG	0x40	/* Data from an i8042 register */
 #define HP_SDC_STATUS_HILCMD    0x50	/* Command from HIL MLC */
 #define HP_SDC_STATUS_HILDATA   0x60	/* Data from HIL MLC */
-#define HP_SDC_STATUS_PUP	0x70	/* Sucessful power-up self test */
+#define HP_SDC_STATUS_PUP	0x70	/* Successful power-up self test */
 #define HP_SDC_STATUS_KCOOKED	0x80	/* Key from cooked kbd */
 #define HP_SDC_STATUS_KRPG	0xc0	/* Key from Repeat Gen */
 #define HP_SDC_STATUS_KMOD_SUP	0x10	/* Shift key is up */
diff --git a/include/linux/i2o.h b/include/linux/i2o.h
index 9e7a12d6385d..a6deef4f4f67 100644
--- a/include/linux/i2o.h
+++ b/include/linux/i2o.h
@@ -826,7 +826,7 @@ static inline struct i2o_message __iomem *i2o_msg_in_to_virt(struct
  *	@c: I2O controller
  *
  *	This function tries to get a message frame. If no message frame is
- *	available do not wait until one is availabe (see also i2o_msg_get_wait).
+ *	available do not wait until one is available (see also i2o_msg_get_wait).
  *	The returned pointer to the message frame is not in I/O memory, it is
  *	allocated from a mempool. But because a MFA is allocated from the
  *	controller too it is guaranteed that i2o_msg_post() will never fail.
diff --git a/include/linux/input.h b/include/linux/input.h
index 056ae8a5bd9b..f3a7794a18c4 100644
--- a/include/linux/input.h
+++ b/include/linux/input.h
@@ -664,6 +664,13 @@ struct input_keymap_entry {
 #define KEY_TOUCHPAD_ON		0x213
 #define KEY_TOUCHPAD_OFF	0x214
 
+#define KEY_CAMERA_ZOOMIN	0x215
+#define KEY_CAMERA_ZOOMOUT	0x216
+#define KEY_CAMERA_UP		0x217
+#define KEY_CAMERA_DOWN		0x218
+#define KEY_CAMERA_LEFT		0x219
+#define KEY_CAMERA_RIGHT	0x21a
+
 #define BTN_TRIGGER_HAPPY		0x2c0
 #define BTN_TRIGGER_HAPPY1		0x2c0
 #define BTN_TRIGGER_HAPPY2		0x2c1
diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
index 59b72ca1c5d1..bea0ac750712 100644
--- a/include/linux/interrupt.h
+++ b/include/linux/interrupt.h
@@ -98,7 +98,7 @@ typedef irqreturn_t (*irq_handler_t)(int, void *);
  * @next:	pointer to the next irqaction for shared interrupts
  * @irq:	interrupt number
  * @dir:	pointer to the proc/irq/NN/name entry
- * @thread_fn:	interupt handler function for threaded interrupts
+ * @thread_fn:	interrupt handler function for threaded interrupts
  * @thread:	thread pointer for threaded interrupts
  * @thread_flags:	flags related to @thread
  * @thread_mask:	bitmask for keeping track of @thread activity
@@ -338,14 +338,6 @@ static inline void enable_irq_lockdep_irqrestore(unsigned int irq, unsigned long
 /* IRQ wakeup (PM) control: */
 extern int irq_set_irq_wake(unsigned int irq, unsigned int on);
 
-#ifndef CONFIG_GENERIC_HARDIRQS_NO_COMPAT
-/* Please do not use: Use the replacement functions instead */
-static inline int set_irq_wake(unsigned int irq, unsigned int on)
-{
-	return irq_set_irq_wake(irq, on);
-}
-#endif
-
 static inline int enable_irq_wake(unsigned int irq)
 {
 	return irq_set_irq_wake(irq, 1);
@@ -492,7 +484,7 @@ extern void __send_remote_softirq(struct call_single_data *cp, int cpu,
    Properties:
    * If tasklet_schedule() is called, then tasklet is guaranteed
      to be executed on some cpu at least once after this.
-   * If the tasklet is already scheduled, but its excecution is still not
+   * If the tasklet is already scheduled, but its execution is still not
      started, it will be executed only once.
    * If this tasklet is already running on another CPU (or schedule is called
      from tasklet itself), it is rescheduled for later.
diff --git a/include/linux/ipmi.h b/include/linux/ipmi.h
index 045f2f275cd0..ca85cf894e33 100644
--- a/include/linux/ipmi.h
+++ b/include/linux/ipmi.h
@@ -111,7 +111,7 @@ struct ipmi_ipmb_addr {
  * A LAN Address.  This is an address to/from a LAN interface bridged
  * by the BMC, not an address actually out on the LAN.
  *
- * A concious decision was made here to deviate slightly from the IPMI
+ * A conscious decision was made here to deviate slightly from the IPMI
  * spec.  We do not use rqSWID and rsSWID like it shows in the
  * message.  Instead, we use remote_SWID and local_SWID.  This means
  * that any message (a request or response) from another device will
@@ -259,7 +259,7 @@ struct ipmi_recv_msg {
 	void (*done)(struct ipmi_recv_msg *msg);
 
 	/* Place-holder for the data, don't make any assumptions about
-	   the size or existance of this, since it may change. */
+	   the size or existence of this, since it may change. */
 	unsigned char   msg_data[IPMI_MAX_MSG_LENGTH];
 };
 
diff --git a/include/linux/irq.h b/include/linux/irq.h
index 1d3577f30d45..09a308072f56 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -28,6 +28,7 @@
 #include <asm/ptrace.h>
 #include <asm/irq_regs.h>
 
+struct seq_file;
 struct irq_desc;
 struct irq_data;
 typedef	void (*irq_flow_handler_t)(unsigned int irq,
@@ -63,13 +64,6 @@ typedef	void (*irq_preflow_handler_t)(struct irq_data *data);
  * IRQ_NO_BALANCING		- Interrupt cannot be balanced (affinity set)
  * IRQ_MOVE_PCNTXT		- Interrupt can be migrated from process context
  * IRQ_NESTED_TRHEAD		- Interrupt nests into another thread
- *
- * Deprecated bits. They are kept updated as long as
- * CONFIG_GENERIC_HARDIRQS_NO_COMPAT is not set. Will go away soon. These bits
- * are internal state of the core code and if you really need to acces
- * them then talk to the genirq maintainer instead of hacking
- * something weird.
- *
  */
 enum {
 	IRQ_TYPE_NONE		= 0x00000000,
@@ -91,18 +85,6 @@ enum {
 	IRQ_NO_BALANCING	= (1 << 13),
 	IRQ_MOVE_PCNTXT		= (1 << 14),
 	IRQ_NESTED_THREAD	= (1 << 15),
-
-#ifndef CONFIG_GENERIC_HARDIRQS_NO_COMPAT
-	IRQ_INPROGRESS		= (1 << 16),
-	IRQ_REPLAY		= (1 << 17),
-	IRQ_WAITING		= (1 << 18),
-	IRQ_DISABLED		= (1 << 19),
-	IRQ_PENDING		= (1 << 20),
-	IRQ_MASKED		= (1 << 21),
-	IRQ_MOVE_PENDING	= (1 << 22),
-	IRQ_AFFINITY_SET	= (1 << 23),
-	IRQ_WAKEUP		= (1 << 24),
-#endif
 };
 
 #define IRQF_MODIFY_MASK	\
@@ -134,7 +116,7 @@ struct msi_desc;
  * struct irq_data - per irq and irq chip data passed down to chip functions
  * @irq:		interrupt number
  * @node:		node index useful for balancing
- * @state_use_accessor: status information for irq chip functions.
+ * @state_use_accessors: status information for irq chip functions.
  *			Use accessor functions to deal with it
  * @chip:		low level interrupt hardware access
  * @handler_data:	per-IRQ data for the irq_chip methods
@@ -173,6 +155,9 @@ struct irq_data {
  *				  from suspend
  * IRDQ_MOVE_PCNTXT		- Interrupt can be moved in process
  *				  context
+ * IRQD_IRQ_DISABLED		- Disabled state of the interrupt
+ * IRQD_IRQ_MASKED		- Masked state of the interrupt
+ * IRQD_IRQ_INPROGRESS		- In progress state of the interrupt
  */
 enum {
 	IRQD_TRIGGER_MASK		= 0xf,
@@ -183,6 +168,9 @@ enum {
 	IRQD_LEVEL			= (1 << 13),
 	IRQD_WAKEUP_STATE		= (1 << 14),
 	IRQD_MOVE_PCNTXT		= (1 << 15),
+	IRQD_IRQ_DISABLED		= (1 << 16),
+	IRQD_IRQ_MASKED			= (1 << 17),
+	IRQD_IRQ_INPROGRESS		= (1 << 18),
 };
 
 static inline bool irqd_is_setaffinity_pending(struct irq_data *d)
@@ -205,6 +193,11 @@ static inline bool irqd_affinity_was_set(struct irq_data *d)
 	return d->state_use_accessors & IRQD_AFFINITY_SET;
 }
 
+static inline void irqd_mark_affinity_was_set(struct irq_data *d)
+{
+	d->state_use_accessors |= IRQD_AFFINITY_SET;
+}
+
 static inline u32 irqd_get_trigger_type(struct irq_data *d)
 {
 	return d->state_use_accessors & IRQD_TRIGGER_MASK;
@@ -234,6 +227,36 @@ static inline bool irqd_can_move_in_process_context(struct irq_data *d)
 	return d->state_use_accessors & IRQD_MOVE_PCNTXT;
 }
 
+static inline bool irqd_irq_disabled(struct irq_data *d)
+{
+	return d->state_use_accessors & IRQD_IRQ_DISABLED;
+}
+
+static inline bool irqd_irq_masked(struct irq_data *d)
+{
+	return d->state_use_accessors & IRQD_IRQ_MASKED;
+}
+
+static inline bool irqd_irq_inprogress(struct irq_data *d)
+{
+	return d->state_use_accessors & IRQD_IRQ_INPROGRESS;
+}
+
+/*
+ * Functions for chained handlers which can be enabled/disabled by the
+ * standard disable_irq/enable_irq calls. Must be called with
+ * irq_desc->lock held.
+ */
+static inline void irqd_set_chained_irq_inprogress(struct irq_data *d)
+{
+	d->state_use_accessors |= IRQD_IRQ_INPROGRESS;
+}
+
+static inline void irqd_clr_chained_irq_inprogress(struct irq_data *d)
+{
+	d->state_use_accessors &= ~IRQD_IRQ_INPROGRESS;
+}
+
 /**
  * struct irq_chip - hardware interrupt chip descriptor
  *
@@ -270,34 +293,15 @@ static inline bool irqd_can_move_in_process_context(struct irq_data *d)
  * @irq_set_wake:	enable/disable power-management wake-on of an IRQ
  * @irq_bus_lock:	function to lock access to slow bus (i2c) chips
  * @irq_bus_sync_unlock:function to sync and unlock slow bus (i2c) chips
+ * @irq_cpu_online:	configure an interrupt source for a secondary CPU
+ * @irq_cpu_offline:	un-configure an interrupt source for a secondary CPU
+ * @irq_print_chip:	optional to print special chip info in show_interrupts
  * @flags:		chip specific flags
  *
  * @release:		release function solely used by UML
  */
 struct irq_chip {
 	const char	*name;
-#ifndef CONFIG_GENERIC_HARDIRQS_NO_DEPRECATED
-	unsigned int	(*startup)(unsigned int irq);
-	void		(*shutdown)(unsigned int irq);
-	void		(*enable)(unsigned int irq);
-	void		(*disable)(unsigned int irq);
-
-	void		(*ack)(unsigned int irq);
-	void		(*mask)(unsigned int irq);
-	void		(*mask_ack)(unsigned int irq);
-	void		(*unmask)(unsigned int irq);
-	void		(*eoi)(unsigned int irq);
-
-	void		(*end)(unsigned int irq);
-	int		(*set_affinity)(unsigned int irq,
-					const struct cpumask *dest);
-	int		(*retrigger)(unsigned int irq);
-	int		(*set_type)(unsigned int irq, unsigned int flow_type);
-	int		(*set_wake)(unsigned int irq, unsigned int on);
-
-	void		(*bus_lock)(unsigned int irq);
-	void		(*bus_sync_unlock)(unsigned int irq);
-#endif
 	unsigned int	(*irq_startup)(struct irq_data *data);
 	void		(*irq_shutdown)(struct irq_data *data);
 	void		(*irq_enable)(struct irq_data *data);
@@ -317,6 +321,11 @@ struct irq_chip {
 	void		(*irq_bus_lock)(struct irq_data *data);
 	void		(*irq_bus_sync_unlock)(struct irq_data *data);
 
+	void		(*irq_cpu_online)(struct irq_data *data);
+	void		(*irq_cpu_offline)(struct irq_data *data);
+
+	void		(*irq_print_chip)(struct irq_data *data, struct seq_file *p);
+
 	unsigned long	flags;
 
 	/* Currently used only by UML, might disappear one day.*/
@@ -331,11 +340,14 @@ struct irq_chip {
  * IRQCHIP_SET_TYPE_MASKED:	Mask before calling chip.irq_set_type()
  * IRQCHIP_EOI_IF_HANDLED:	Only issue irq_eoi() when irq was handled
  * IRQCHIP_MASK_ON_SUSPEND:	Mask non wake irqs in the suspend path
+ * IRQCHIP_ONOFFLINE_ENABLED:	Only call irq_on/off_line callbacks
+ *				when irq enabled
  */
 enum {
 	IRQCHIP_SET_TYPE_MASKED		= (1 <<  0),
 	IRQCHIP_EOI_IF_HANDLED		= (1 <<  1),
 	IRQCHIP_MASK_ON_SUSPEND		= (1 <<  2),
+	IRQCHIP_ONOFFLINE_ENABLED	= (1 <<  3),
 };
 
 /* This include will go away once we isolated irq_desc usage to core code */
@@ -360,25 +372,22 @@ struct irqaction;
 extern int setup_irq(unsigned int irq, struct irqaction *new);
 extern void remove_irq(unsigned int irq, struct irqaction *act);
 
+extern void irq_cpu_online(void);
+extern void irq_cpu_offline(void);
+extern int __irq_set_affinity_locked(struct irq_data *data,  const struct cpumask *cpumask);
+
 #ifdef CONFIG_GENERIC_HARDIRQS
 
 #if defined(CONFIG_SMP) && defined(CONFIG_GENERIC_PENDING_IRQ)
-void move_native_irq(int irq);
-void move_masked_irq(int irq);
 void irq_move_irq(struct irq_data *data);
 void irq_move_masked_irq(struct irq_data *data);
 #else
-static inline void move_native_irq(int irq) { }
-static inline void move_masked_irq(int irq) { }
 static inline void irq_move_irq(struct irq_data *data) { }
 static inline void irq_move_masked_irq(struct irq_data *data) { }
 #endif
 
 extern int no_irq_affinity;
 
-/* Handle irq action chains: */
-extern irqreturn_t handle_IRQ_event(unsigned int irq, struct irqaction *action);
-
 /*
  * Built-in IRQ handlers for various IRQ types,
  * callable via desc->handle_irq()
@@ -386,6 +395,7 @@ extern irqreturn_t handle_IRQ_event(unsigned int irq, struct irqaction *action);
 extern void handle_level_irq(unsigned int irq, struct irq_desc *desc);
 extern void handle_fasteoi_irq(unsigned int irq, struct irq_desc *desc);
 extern void handle_edge_irq(unsigned int irq, struct irq_desc *desc);
+extern void handle_edge_eoi_irq(unsigned int irq, struct irq_desc *desc);
 extern void handle_simple_irq(unsigned int irq, struct irq_desc *desc);
 extern void handle_percpu_irq(unsigned int irq, struct irq_desc *desc);
 extern void handle_bad_irq(unsigned int irq, struct irq_desc *desc);
@@ -534,89 +544,6 @@ static inline struct msi_desc *irq_data_get_msi(struct irq_data *d)
 	return d->msi_desc;
 }
 
-#ifndef CONFIG_GENERIC_HARDIRQS_NO_COMPAT
-/* Please do not use: Use the replacement functions instead */
-static inline int set_irq_chip(unsigned int irq, struct irq_chip *chip)
-{
-	return irq_set_chip(irq, chip);
-}
-static inline int set_irq_data(unsigned int irq, void *data)
-{
-	return irq_set_handler_data(irq, data);
-}
-static inline int set_irq_chip_data(unsigned int irq, void *data)
-{
-	return irq_set_chip_data(irq, data);
-}
-static inline int set_irq_type(unsigned int irq, unsigned int type)
-{
-	return irq_set_irq_type(irq, type);
-}
-static inline int set_irq_msi(unsigned int irq, struct msi_desc *entry)
-{
-	return irq_set_msi_desc(irq, entry);
-}
-static inline struct irq_chip *get_irq_chip(unsigned int irq)
-{
-	return irq_get_chip(irq);
-}
-static inline void *get_irq_chip_data(unsigned int irq)
-{
-	return irq_get_chip_data(irq);
-}
-static inline void *get_irq_data(unsigned int irq)
-{
-	return irq_get_handler_data(irq);
-}
-static inline void *irq_data_get_irq_data(struct irq_data *d)
-{
-	return irq_data_get_irq_handler_data(d);
-}
-static inline struct msi_desc *get_irq_msi(unsigned int irq)
-{
-	return irq_get_msi_desc(irq);
-}
-static inline void set_irq_noprobe(unsigned int irq)
-{
-	irq_set_noprobe(irq);
-}
-static inline void set_irq_probe(unsigned int irq)
-{
-	irq_set_probe(irq);
-}
-static inline void set_irq_nested_thread(unsigned int irq, int nest)
-{
-	irq_set_nested_thread(irq, nest);
-}
-static inline void
-set_irq_chip_and_handler_name(unsigned int irq, struct irq_chip *chip,
-			      irq_flow_handler_t handle, const char *name)
-{
-	irq_set_chip_and_handler_name(irq, chip, handle, name);
-}
-static inline void
-set_irq_chip_and_handler(unsigned int irq, struct irq_chip *chip,
-			 irq_flow_handler_t handle)
-{
-	irq_set_chip_and_handler(irq, chip, handle);
-}
-static inline void
-__set_irq_handler(unsigned int irq, irq_flow_handler_t handle, int is_chained,
-		  const char *name)
-{
-	__irq_set_handler(irq, handle, is_chained, name);
-}
-static inline void set_irq_handler(unsigned int irq, irq_flow_handler_t handle)
-{
-	irq_set_handler(irq, handle);
-}
-static inline void
-set_irq_chained_handler(unsigned int irq, irq_flow_handler_t handle)
-{
-	irq_set_chained_handler(irq, handle);
-}
-#endif
-
 int irq_alloc_descs(int irq, unsigned int from, unsigned int cnt, int node);
 void irq_free_descs(unsigned int irq, unsigned int cnt);
 int irq_reserve_irqs(unsigned int from, unsigned int cnt);
diff --git a/include/linux/irqdesc.h b/include/linux/irqdesc.h
index 00218371518b..a082905b5ebe 100644
--- a/include/linux/irqdesc.h
+++ b/include/linux/irqdesc.h
@@ -35,32 +35,7 @@ struct timer_rand_state;
  * @name:		flow handler name for /proc/interrupts output
  */
 struct irq_desc {
-
-#ifdef CONFIG_GENERIC_HARDIRQS_NO_DEPRECATED
 	struct irq_data		irq_data;
-#else
-	/*
-	 * This union will go away, once we fixed the direct access to
-	 * irq_desc all over the place. The direct fields are a 1:1
-	 * overlay of irq_data.
-	 */
-	union {
-		struct irq_data		irq_data;
-		struct {
-			unsigned int		irq;
-			unsigned int		node;
-			unsigned int		pad_do_not_even_think_about_it;
-			struct irq_chip		*chip;
-			void			*handler_data;
-			void			*chip_data;
-			struct msi_desc		*msi_desc;
-#ifdef CONFIG_SMP
-			cpumask_var_t		affinity;
-#endif
-		};
-	};
-#endif
-
 	struct timer_rand_state *timer_rand_state;
 	unsigned int __percpu	*kstat_irqs;
 	irq_flow_handler_t	handle_irq;
@@ -68,11 +43,7 @@ struct irq_desc {
 	irq_preflow_handler_t	preflow_handler;
 #endif
 	struct irqaction	*action;	/* IRQ action list */
-#ifdef CONFIG_GENERIC_HARDIRQS_NO_COMPAT
 	unsigned int		status_use_accessors;
-#else
-	unsigned int		status;		/* IRQ status */
-#endif
 	unsigned int		core_internal_state__do_not_mess_with_it;
 	unsigned int		depth;		/* nested irq disables */
 	unsigned int		wake_depth;	/* nested wake enables */
@@ -100,13 +71,6 @@ struct irq_desc {
 extern struct irq_desc irq_desc[NR_IRQS];
 #endif
 
-/* Will be removed once the last users in power and sh are gone */
-extern struct irq_desc *irq_to_desc_alloc_node(unsigned int irq, int node);
-static inline struct irq_desc *move_irq_desc(struct irq_desc *desc, int node)
-{
-	return desc;
-}
-
 #ifdef CONFIG_GENERIC_HARDIRQS
 
 static inline struct irq_data *irq_desc_get_irq_data(struct irq_desc *desc)
@@ -134,27 +98,6 @@ static inline struct msi_desc *irq_desc_get_msi_desc(struct irq_desc *desc)
 	return desc->irq_data.msi_desc;
 }
 
-#ifndef CONFIG_GENERIC_HARDIRQS_NO_COMPAT
-static inline struct irq_chip *get_irq_desc_chip(struct irq_desc *desc)
-{
-	return irq_desc_get_chip(desc);
-}
-static inline void *get_irq_desc_data(struct irq_desc *desc)
-{
-	return irq_desc_get_handler_data(desc);
-}
-
-static inline void *get_irq_desc_chip_data(struct irq_desc *desc)
-{
-	return irq_desc_get_chip_data(desc);
-}
-
-static inline struct msi_desc *get_irq_desc_msi(struct irq_desc *desc)
-{
-	return irq_desc_get_msi_desc(desc);
-}
-#endif
-
 /*
  * Architectures call this to let the generic IRQ layer
  * handle an interrupt. If the descriptor is attached to an
@@ -178,24 +121,44 @@ static inline int irq_has_action(unsigned int irq)
 	return desc->action != NULL;
 }
 
-#ifndef CONFIG_GENERIC_HARDIRQS_NO_COMPAT
-static inline int irq_balancing_disabled(unsigned int irq)
+/* caller has locked the irq_desc and both params are valid */
+static inline void __irq_set_handler_locked(unsigned int irq,
+					    irq_flow_handler_t handler)
 {
 	struct irq_desc *desc;
 
 	desc = irq_to_desc(irq);
-	return desc->status & IRQ_NO_BALANCING_MASK;
+	desc->handle_irq = handler;
 }
-#endif
 
 /* caller has locked the irq_desc and both params are valid */
-static inline void __set_irq_handler_unlocked(int irq,
-					      irq_flow_handler_t handler)
+static inline void
+__irq_set_chip_handler_name_locked(unsigned int irq, struct irq_chip *chip,
+				   irq_flow_handler_t handler, const char *name)
 {
 	struct irq_desc *desc;
 
 	desc = irq_to_desc(irq);
+	irq_desc_get_irq_data(desc)->chip = chip;
 	desc->handle_irq = handler;
+	desc->name = name;
+}
+
+static inline int irq_balancing_disabled(unsigned int irq)
+{
+	struct irq_desc *desc;
+
+	desc = irq_to_desc(irq);
+	return desc->status_use_accessors & IRQ_NO_BALANCING_MASK;
+}
+
+static inline void
+irq_set_lockdep_class(unsigned int irq, struct lock_class_key *class)
+{
+	struct irq_desc *desc = irq_to_desc(irq);
+
+	if (desc)
+		lockdep_set_class(&desc->lock, class);
 }
 
 #ifdef CONFIG_IRQ_PREFLOW_FASTEOI
diff --git a/include/linux/isdn/hdlc.h b/include/linux/isdn/hdlc.h
index 4b3ecc40889a..96521370c782 100644
--- a/include/linux/isdn/hdlc.h
+++ b/include/linux/isdn/hdlc.h
@@ -2,7 +2,7 @@
  * hdlc.h  --  General purpose ISDN HDLC decoder.
  *
  * Implementation of a HDLC decoder/encoder in software.
- * Neccessary because some ISDN devices don't have HDLC
+ * Necessary because some ISDN devices don't have HDLC
  * controllers.
  *
  * Copyright (C)
diff --git a/include/linux/ixjuser.h b/include/linux/ixjuser.h
index 88b45895746d..94ab5e942e53 100644
--- a/include/linux/ixjuser.h
+++ b/include/linux/ixjuser.h
@@ -50,7 +50,7 @@
 * IOCTL's used for the Quicknet Telephony Cards
 *
 * If you use the IXJCTL_TESTRAM command, the card must be power cycled to
-* reset the SRAM values before futher use.
+* reset the SRAM values before further use.
 *
 ******************************************************************************/
 
diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h
index 27e79c27ba08..a32dcaec04e1 100644
--- a/include/linux/jbd2.h
+++ b/include/linux/jbd2.h
@@ -432,13 +432,35 @@ struct jbd2_journal_handle
 	int			h_err;
 
 	/* Flags [no locking] */
-	unsigned int	h_sync:		1;	/* sync-on-close */
-	unsigned int	h_jdata:	1;	/* force data journaling */
-	unsigned int	h_aborted:	1;	/* fatal error on handle */
+	unsigned int	h_sync:1;	/* sync-on-close */
+	unsigned int	h_jdata:1;	/* force data journaling */
+	unsigned int	h_aborted:1;	/* fatal error on handle */
+	unsigned int	h_cowing:1;	/* COWing block to snapshot */
+
+	/* Number of buffers requested by user:
+	 * (before adding the COW credits factor) */
+	unsigned int	h_base_credits:14;
+
+	/* Number of buffers the user is allowed to dirty:
+	 * (counts only buffers dirtied when !h_cowing) */
+	unsigned int	h_user_credits:14;
+
 
 #ifdef CONFIG_DEBUG_LOCK_ALLOC
 	struct lockdep_map	h_lockdep_map;
 #endif
+
+#ifdef CONFIG_JBD2_DEBUG
+	/* COW debugging counters: */
+	unsigned int h_cow_moved; /* blocks moved to snapshot */
+	unsigned int h_cow_copied; /* blocks copied to snapshot */
+	unsigned int h_cow_ok_jh; /* blocks already COWed during current
+				     transaction */
+	unsigned int h_cow_ok_bitmap; /* blocks not set in COW bitmap */
+	unsigned int h_cow_ok_mapped;/* blocks already mapped in snapshot */
+	unsigned int h_cow_bitmaps; /* COW bitmaps created */
+	unsigned int h_cow_excluded; /* blocks set in exclude bitmap */
+#endif
 };
 
 
diff --git a/include/linux/jiffies.h b/include/linux/jiffies.h
index 922aa313c9f9..f97672a36fa8 100644
--- a/include/linux/jiffies.h
+++ b/include/linux/jiffies.h
@@ -42,7 +42,7 @@
 /* LATCH is used in the interval timer and ftape setup. */
 #define LATCH  ((CLOCK_TICK_RATE + HZ/2) / HZ)	/* For divider */
 
-/* Suppose we want to devide two numbers NOM and DEN: NOM/DEN, then we can
+/* Suppose we want to divide two numbers NOM and DEN: NOM/DEN, then we can
  * improve accuracy by shifting LSH bits, hence calculating:
  *     (NOM << LSH) / DEN
  * This however means trouble for large NOM, because (NOM << LSH) may no
diff --git a/include/linux/journal-head.h b/include/linux/journal-head.h
index 525aac3c97df..44e95d0a721f 100644
--- a/include/linux/journal-head.h
+++ b/include/linux/journal-head.h
@@ -41,6 +41,13 @@ struct journal_head {
 	unsigned b_modified;
 
 	/*
+	 * This feild tracks the last transaction id in which this buffer
+	 * has been cowed
+	 * [jbd_lock_bh_state()]
+	 */
+	unsigned b_cow_tid;
+
+	/*
 	 * Copy of the buffer data frozen for writing to the log.
 	 * [jbd_lock_bh_state()]
 	 */
diff --git a/include/linux/kallsyms.h b/include/linux/kallsyms.h
index d8e9b3d1c23c..0df513b7a9f8 100644
--- a/include/linux/kallsyms.h
+++ b/include/linux/kallsyms.h
@@ -36,6 +36,7 @@ const char *kallsyms_lookup(unsigned long addr,
 
 /* Look up a kernel symbol and return it in a text buffer. */
 extern int sprint_symbol(char *buffer, unsigned long address);
+extern int sprint_backtrace(char *buffer, unsigned long address);
 
 /* Look up a kernel symbol and print it to the kernel messages. */
 extern void __print_symbol(const char *fmt, unsigned long address);
@@ -79,6 +80,12 @@ static inline int sprint_symbol(char *buffer, unsigned long addr)
 	return 0;
 }
 
+static inline int sprint_backtrace(char *buffer, unsigned long addr)
+{
+	*buffer = '\0';
+	return 0;
+}
+
 static inline int lookup_symbol_name(unsigned long addr, char *symname)
 {
 	return -ERANGE;
diff --git a/include/linux/kexec.h b/include/linux/kexec.h
index 03e8e8dbc577..c2478a342cd7 100644
--- a/include/linux/kexec.h
+++ b/include/linux/kexec.h
@@ -208,6 +208,7 @@ int __init parse_crashkernel(char *cmdline, unsigned long long system_ram,
 		unsigned long long *crash_size, unsigned long long *crash_base);
 int crash_shrink_memory(unsigned long new_size);
 size_t crash_get_memory_size(void);
+void crash_free_reserved_phys_range(unsigned long begin, unsigned long end);
 
 #else /* !CONFIG_KEXEC */
 struct pt_regs;
diff --git a/include/linux/ktime.h b/include/linux/ktime.h
index e1ceaa9b36bb..603bec2913b0 100644
--- a/include/linux/ktime.h
+++ b/include/linux/ktime.h
@@ -35,7 +35,7 @@
  *
  * On 32-bit CPUs an optimized representation of the timespec structure
  * is used to avoid expensive conversions from and to timespecs. The
- * endian-aware order of the tv struct members is choosen to allow
+ * endian-aware order of the tv struct members is chosen to allow
  * mathematical operations on the tv64 member of the union too, which
  * for certain operations produces better code.
  *
@@ -158,7 +158,7 @@ static inline ktime_t ktime_set(const long secs, const unsigned long nsecs)
  * @lhs:	minuend
  * @rhs:	subtrahend
  *
- * Returns the remainder of the substraction
+ * Returns the remainder of the subtraction
  */
 static inline ktime_t ktime_sub(const ktime_t lhs, const ktime_t rhs)
 {
diff --git a/include/linux/led-lm3530.h b/include/linux/led-lm3530.h
index bb69d20da0dc..58592fa67d24 100644
--- a/include/linux/led-lm3530.h
+++ b/include/linux/led-lm3530.h
@@ -41,7 +41,7 @@
 #define LM3530_RAMP_TIME_8s		(7)
 
 /* ALS Resistor Select */
-#define LM3530_ALS_IMPD_Z		(0x00) /* ALS Impedence */
+#define LM3530_ALS_IMPD_Z		(0x00) /* ALS Impedance */
 #define LM3530_ALS_IMPD_13_53kOhm	(0x01)
 #define LM3530_ALS_IMPD_9_01kOhm	(0x02)
 #define LM3530_ALS_IMPD_5_41kOhm	(0x03)
diff --git a/include/linux/leds.h b/include/linux/leds.h
index 383811d9af83..61e0340a4b77 100644
--- a/include/linux/leds.h
+++ b/include/linux/leds.h
@@ -145,6 +145,9 @@ extern void led_trigger_register_simple(const char *name,
 extern void led_trigger_unregister_simple(struct led_trigger *trigger);
 extern void led_trigger_event(struct led_trigger *trigger,
 				enum led_brightness event);
+extern void led_trigger_blink(struct led_trigger *trigger,
+			      unsigned long *delay_on,
+			      unsigned long *delay_off);
 
 #else
 
diff --git a/include/linux/libata.h b/include/linux/libata.h
index c71f46960f39..7f675aa81d87 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -364,7 +364,7 @@ enum {
 	ATA_EH_CMD_TIMEOUT_TABLE_SIZE = 6,
 
 	/* Horkage types. May be set by libata or controller on drives
-	   (some horkage may be drive/controller pair dependant */
+	   (some horkage may be drive/controller pair dependent */
 
 	ATA_HORKAGE_DIAGNOSTIC	= (1 << 0),	/* Failed boot diag */
 	ATA_HORKAGE_NODMA	= (1 << 1),	/* DMA problems */
diff --git a/include/linux/lru_cache.h b/include/linux/lru_cache.h
index 78fbf24f357a..6a4fab7c6e09 100644
--- a/include/linux/lru_cache.h
+++ b/include/linux/lru_cache.h
@@ -148,7 +148,7 @@ write intent log information, three of which are mentioned here.
  *
  * DRBD currently (May 2009) only uses 61 elements on the resync lru_cache
  * (total memory usage 2 pages), and up to 3833 elements on the act_log
- * lru_cache, totalling ~215 kB for 64bit architechture, ~53 pages.
+ * lru_cache, totalling ~215 kB for 64bit architecture, ~53 pages.
  *
  * We usually do not actually free these objects again, but only "recycle"
  * them, as the change "index: -old_label, +LC_FREE" would need a transaction
diff --git a/include/linux/mfd/ab8500.h b/include/linux/mfd/ab8500.h
index 56f8dea72152..b31843075198 100644
--- a/include/linux/mfd/ab8500.h
+++ b/include/linux/mfd/ab8500.h
@@ -74,6 +74,45 @@
 #define AB8500_INT_ACC_DETECT_21DB_F	37
 #define AB8500_INT_ACC_DETECT_21DB_R	38
 #define AB8500_INT_GP_SW_ADC_CONV_END	39
+#define AB8500_INT_ACC_DETECT_1DB_F	33
+#define AB8500_INT_ACC_DETECT_1DB_R	34
+#define AB8500_INT_ACC_DETECT_22DB_F	35
+#define AB8500_INT_ACC_DETECT_22DB_R	36
+#define AB8500_INT_ACC_DETECT_21DB_F	37
+#define AB8500_INT_ACC_DETECT_21DB_R	38
+#define AB8500_INT_GP_SW_ADC_CONV_END	39
+#define AB8500_INT_GPIO6R		40
+#define AB8500_INT_GPIO7R		41
+#define AB8500_INT_GPIO8R		42
+#define AB8500_INT_GPIO9R		43
+#define AB8500_INT_GPIO10R		44
+#define AB8500_INT_GPIO11R		45
+#define AB8500_INT_GPIO12R		46
+#define AB8500_INT_GPIO13R		47
+#define AB8500_INT_GPIO24R		48
+#define AB8500_INT_GPIO25R		49
+#define AB8500_INT_GPIO36R		50
+#define AB8500_INT_GPIO37R		51
+#define AB8500_INT_GPIO38R		52
+#define AB8500_INT_GPIO39R		53
+#define AB8500_INT_GPIO40R		54
+#define AB8500_INT_GPIO41R		55
+#define AB8500_INT_GPIO6F		56
+#define AB8500_INT_GPIO7F		57
+#define AB8500_INT_GPIO8F		58
+#define AB8500_INT_GPIO9F		59
+#define AB8500_INT_GPIO10F		60
+#define AB8500_INT_GPIO11F		61
+#define AB8500_INT_GPIO12F		62
+#define AB8500_INT_GPIO13F		63
+#define AB8500_INT_GPIO24F		64
+#define AB8500_INT_GPIO25F		65
+#define AB8500_INT_GPIO36F		66
+#define AB8500_INT_GPIO37F		67
+#define AB8500_INT_GPIO38F		68
+#define AB8500_INT_GPIO39F		69
+#define AB8500_INT_GPIO40F		70
+#define AB8500_INT_GPIO41F		71
 #define AB8500_INT_ADP_SOURCE_ERROR	72
 #define AB8500_INT_ADP_SINK_ERROR	73
 #define AB8500_INT_ADP_PROBE_PLUG	74
@@ -139,19 +178,27 @@ struct ab8500 {
 	u8 oldmask[AB8500_NUM_IRQ_REGS];
 };
 
+struct regulator_reg_init;
 struct regulator_init_data;
+struct ab8500_gpio_platform_data;
 
 /**
  * struct ab8500_platform_data - AB8500 platform data
  * @irq_base: start of AB8500 IRQs, AB8500_NR_IRQS will be used
  * @init: board-specific initialization after detection of ab8500
+ * @num_regulator_reg_init: number of regulator init registers
+ * @regulator_reg_init: regulator init registers
+ * @num_regulator: number of regulators
  * @regulator: machine-specific constraints for regulators
  */
 struct ab8500_platform_data {
 	int irq_base;
 	void (*init) (struct ab8500 *);
+	int num_regulator_reg_init;
+	struct ab8500_regulator_reg_init *regulator_reg_init;
 	int num_regulator;
 	struct regulator_init_data *regulator;
+	struct ab8500_gpio_platform_data *gpio;
 };
 
 extern int __devinit ab8500_init(struct ab8500 *ab8500);
diff --git a/include/linux/mfd/ab8500/gpio.h b/include/linux/mfd/ab8500/gpio.h
new file mode 100644
index 000000000000..488a8c920a29
--- /dev/null
+++ b/include/linux/mfd/ab8500/gpio.h
@@ -0,0 +1,21 @@
+/*
+ * Copyright ST-Ericsson 2010.
+ *
+ * Author: Bibek Basu <bibek.basu@stericsson.com>
+ * Licensed under GPLv2.
+ */
+
+#ifndef _AB8500_GPIO_H
+#define _AB8500_GPIO_H
+
+/*
+ * Platform data to register a block: only the initial gpio/irq number.
+ */
+
+struct ab8500_gpio_platform_data {
+	int gpio_base;
+	u32 irq_base;
+	u8  config_reg[7];
+};
+
+#endif /* _AB8500_GPIO_H */
diff --git a/include/linux/mfd/core.h b/include/linux/mfd/core.h
index 1408bf8eed5f..ad1b19aa6508 100644
--- a/include/linux/mfd/core.h
+++ b/include/linux/mfd/core.h
@@ -63,6 +63,24 @@ extern int mfd_cell_enable(struct platform_device *pdev);
 extern int mfd_cell_disable(struct platform_device *pdev);
 
 /*
+ * "Clone" multiple platform devices for a single cell. This is to be used
+ * for devices that have multiple users of a cell.  For example, if an mfd
+ * driver wants the cell "foo" to be used by a GPIO driver, an MTD driver,
+ * and a platform driver, the following bit of code would be use after first
+ * calling mfd_add_devices():
+ *
+ * const char *fclones[] = { "foo-gpio", "foo-mtd" };
+ * err = mfd_clone_cells("foo", fclones, ARRAY_SIZE(fclones));
+ *
+ * Each driver (MTD, GPIO, and platform driver) would then register
+ * platform_drivers for "foo-mtd", "foo-gpio", and "foo", respectively.
+ * The cell's .enable/.disable hooks should be used to deal with hardware
+ * resource contention.
+ */
+extern int mfd_clone_cell(const char *cell, const char **clones,
+		size_t n_clones);
+
+/*
  * Given a platform device that's been created by mfd_add_devices(), fetch
  * the mfd_cell that created it.
  */
@@ -87,13 +105,4 @@ extern int mfd_add_devices(struct device *parent, int id,
 
 extern void mfd_remove_devices(struct device *parent);
 
-/*
- * For MFD drivers with clients sharing access to resources, these create
- * multiple platform devices per cell.  Contention handling must still be
- * handled via drivers (ie, with enable/disable hooks).
- */
-extern int mfd_shared_platform_driver_register(struct platform_driver *drv,
-		const char *cellname);
-extern void mfd_shared_platform_driver_unregister(struct platform_driver *drv);
-
 #endif
diff --git a/include/linux/mfd/max8997-private.h b/include/linux/mfd/max8997-private.h
index 93a9477e075f..69d1010e2e51 100644
--- a/include/linux/mfd/max8997-private.h
+++ b/include/linux/mfd/max8997-private.h
@@ -24,6 +24,8 @@
 
 #include <linux/i2c.h>
 
+#define MAX8997_REG_INVALID	(0xff)
+
 enum max8997_pmic_reg {
 	MAX8997_REG_PMIC_ID0	= 0x00,
 	MAX8997_REG_PMIC_ID1	= 0x01,
@@ -313,6 +315,7 @@ enum max8997_irq {
 #define MAX8997_REG_BUCK2DVS(x)	(MAX8997_REG_BUCK2DVS1 + (x) - 1)
 #define MAX8997_REG_BUCK5DVS(x)	(MAX8997_REG_BUCK5DVS1 + (x) - 1)
 
+#define MAX8997_NUM_GPIO	12
 struct max8997_dev {
 	struct device *dev;
 	struct i2c_client *i2c; /* 0xcc / PMIC, Battery Control, and FLASH */
@@ -324,11 +327,19 @@ struct max8997_dev {
 	int type;
 	struct platform_device *battery; /* battery control (not fuel gauge) */
 
+	int irq;
+	int ono;
+	int irq_base;
 	bool wakeup;
+	struct mutex irqlock;
+	int irq_masks_cur[MAX8997_IRQ_GROUP_NR];
+	int irq_masks_cache[MAX8997_IRQ_GROUP_NR];
 
 	/* For hibernation */
 	u8 reg_dump[MAX8997_REG_PMIC_END + MAX8997_MUIC_REG_END +
 		MAX8997_HAPTIC_REG_END];
+
+	bool gpio_status[MAX8997_NUM_GPIO];
 };
 
 enum max8997_types {
@@ -336,6 +347,10 @@ enum max8997_types {
 	TYPE_MAX8966,
 };
 
+extern int max8997_irq_init(struct max8997_dev *max8997);
+extern void max8997_irq_exit(struct max8997_dev *max8997);
+extern int max8997_irq_resume(struct max8997_dev *max8997);
+
 extern int max8997_read_reg(struct i2c_client *i2c, u8 reg, u8 *dest);
 extern int max8997_bulk_read(struct i2c_client *i2c, u8 reg, int count,
 				u8 *buf);
@@ -344,4 +359,10 @@ extern int max8997_bulk_write(struct i2c_client *i2c, u8 reg, int count,
 				u8 *buf);
 extern int max8997_update_reg(struct i2c_client *i2c, u8 reg, u8 val, u8 mask);
 
+#define MAX8997_GPIO_INT_BOTH	(0x3 << 4)
+#define MAX8997_GPIO_INT_RISE	(0x2 << 4)
+#define MAX8997_GPIO_INT_FALL	(0x1 << 4)
+
+#define MAX8997_GPIO_INT_MASK	(0x3 << 4)
+#define MAX8997_GPIO_DATA_MASK	(0x1 << 2)
 #endif /*  __LINUX_MFD_MAX8997_PRIV_H */
diff --git a/include/linux/mfd/max8997.h b/include/linux/mfd/max8997.h
index cb671b3451bf..60931d089422 100644
--- a/include/linux/mfd/max8997.h
+++ b/include/linux/mfd/max8997.h
@@ -78,8 +78,11 @@ struct max8997_regulator_data {
 };
 
 struct max8997_platform_data {
-	bool wakeup;
-	/* IRQ: Not implemented */
+	/* IRQ */
+	int irq_base;
+	int ono;
+	int wakeup;
+
 	/* ---- PMIC ---- */
 	struct max8997_regulator_data *regulators;
 	int num_regulators;
diff --git a/include/linux/mfd/wm8350/pmic.h b/include/linux/mfd/wm8350/pmic.h
index e786fe9841ef..579b50ca2e02 100644
--- a/include/linux/mfd/wm8350/pmic.h
+++ b/include/linux/mfd/wm8350/pmic.h
@@ -1,5 +1,5 @@
 /*
- * pmic.h  --  Power Managment Driver for Wolfson WM8350 PMIC
+ * pmic.h  --  Power Management Driver for Wolfson WM8350 PMIC
  *
  * Copyright 2007 Wolfson Microelectronics PLC
  *
diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
index 049214642036..8985768e2c0d 100644
--- a/include/linux/mlx4/device.h
+++ b/include/linux/mlx4/device.h
@@ -39,6 +39,11 @@
 
 #include <asm/atomic.h>
 
+#define MAX_MSIX_P_PORT		17
+#define MAX_MSIX		64
+#define MSIX_LEGACY_SZ		4
+#define MIN_MSIX_P_PORT		5
+
 enum {
 	MLX4_FLAG_MSI_X		= 1 << 0,
 	MLX4_FLAG_OLD_PORT_CMDS	= 1 << 1,
@@ -145,8 +150,10 @@ enum {
 };
 
 enum mlx4_protocol {
-	MLX4_PROTOCOL_IB,
-	MLX4_PROTOCOL_EN,
+	MLX4_PROT_IB_IPV6 = 0,
+	MLX4_PROT_ETH,
+	MLX4_PROT_IB_IPV4,
+	MLX4_PROT_FCOE
 };
 
 enum {
@@ -173,6 +180,12 @@ enum mlx4_special_vlan_idx {
 	MLX4_VLAN_REGULAR
 };
 
+enum mlx4_steer_type {
+	MLX4_MC_STEER = 0,
+	MLX4_UC_STEER,
+	MLX4_NUM_STEERS
+};
+
 enum {
 	MLX4_NUM_FEXCH          = 64 * 1024,
 };
@@ -223,6 +236,7 @@ struct mlx4_caps {
 	int			num_eqs;
 	int			reserved_eqs;
 	int			num_comp_vectors;
+	int			comp_pool;
 	int			num_mpts;
 	int			num_mtt_segs;
 	int			mtts_per_seg;
@@ -245,6 +259,9 @@ struct mlx4_caps {
 	u16			stat_rate_support;
 	int			udp_rss;
 	int			loopback_support;
+	int			vep_uc_steering;
+	int			vep_mc_steering;
+	int			wol;
 	u8			port_width_cap[MLX4_MAX_PORTS + 1];
 	int			max_gso_sz;
 	int                     reserved_qps_cnt[MLX4_NUM_QP_REGION];
@@ -334,6 +351,17 @@ struct mlx4_fmr {
 struct mlx4_uar {
 	unsigned long		pfn;
 	int			index;
+	struct list_head	bf_list;
+	unsigned		free_bf_bmap;
+	void __iomem	       *map;
+	void __iomem	       *bf_map;
+};
+
+struct mlx4_bf {
+	unsigned long		offset;
+	int			buf_size;
+	struct mlx4_uar	       *uar;
+	void __iomem	       *reg;
 };
 
 struct mlx4_cq {
@@ -415,7 +443,7 @@ struct mlx4_dev {
 	unsigned long		flags;
 	struct mlx4_caps	caps;
 	struct radix_tree_root	qp_table_tree;
-	u32			rev_id;
+	u8			rev_id;
 	char			board_id[MLX4_BOARD_ID_LEN];
 };
 
@@ -461,6 +489,8 @@ void mlx4_pd_free(struct mlx4_dev *dev, u32 pdn);
 
 int mlx4_uar_alloc(struct mlx4_dev *dev, struct mlx4_uar *uar);
 void mlx4_uar_free(struct mlx4_dev *dev, struct mlx4_uar *uar);
+int mlx4_bf_alloc(struct mlx4_dev *dev, struct mlx4_bf *bf);
+void mlx4_bf_free(struct mlx4_dev *dev, struct mlx4_bf *bf);
 
 int mlx4_mtt_init(struct mlx4_dev *dev, int npages, int page_shift,
 		  struct mlx4_mtt *mtt);
@@ -508,9 +538,15 @@ int mlx4_multicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
 			  int block_mcast_loopback, enum mlx4_protocol protocol);
 int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
 			  enum mlx4_protocol protocol);
+int mlx4_multicast_promisc_add(struct mlx4_dev *dev, u32 qpn, u8 port);
+int mlx4_multicast_promisc_remove(struct mlx4_dev *dev, u32 qpn, u8 port);
+int mlx4_unicast_promisc_add(struct mlx4_dev *dev, u32 qpn, u8 port);
+int mlx4_unicast_promisc_remove(struct mlx4_dev *dev, u32 qpn, u8 port);
+int mlx4_SET_MCAST_FLTR(struct mlx4_dev *dev, u8 port, u64 mac, u64 clear, u8 mode);
 
-int mlx4_register_mac(struct mlx4_dev *dev, u8 port, u64 mac, int *index);
-void mlx4_unregister_mac(struct mlx4_dev *dev, u8 port, int index);
+int mlx4_register_mac(struct mlx4_dev *dev, u8 port, u64 mac, int *qpn, u8 wrap);
+void mlx4_unregister_mac(struct mlx4_dev *dev, u8 port, int qpn);
+int mlx4_replace_mac(struct mlx4_dev *dev, u8 port, int qpn, u64 new_mac, u8 wrap);
 
 int mlx4_find_cached_vlan(struct mlx4_dev *dev, u8 port, u16 vid, int *idx);
 int mlx4_register_vlan(struct mlx4_dev *dev, u8 port, u16 vlan, int *index);
@@ -526,5 +562,10 @@ void mlx4_fmr_unmap(struct mlx4_dev *dev, struct mlx4_fmr *fmr,
 int mlx4_fmr_free(struct mlx4_dev *dev, struct mlx4_fmr *fmr);
 int mlx4_SYNC_TPT(struct mlx4_dev *dev);
 int mlx4_test_interrupts(struct mlx4_dev *dev);
+int mlx4_assign_eq(struct mlx4_dev *dev, char* name , int* vector);
+void mlx4_release_eq(struct mlx4_dev *dev, int vec);
+
+int mlx4_wol_read(struct mlx4_dev *dev, u64 *config, int port);
+int mlx4_wol_write(struct mlx4_dev *dev, u64 config, int port);
 
 #endif /* MLX4_DEVICE_H */
diff --git a/include/linux/mlx4/qp.h b/include/linux/mlx4/qp.h
index 0eeb2a1a867c..9e9eb21056ca 100644
--- a/include/linux/mlx4/qp.h
+++ b/include/linux/mlx4/qp.h
@@ -303,6 +303,7 @@ struct mlx4_wqe_data_seg {
 
 enum {
 	MLX4_INLINE_ALIGN	= 64,
+	MLX4_INLINE_SEG		= 1 << 31,
 };
 
 struct mlx4_wqe_inline_seg {
diff --git a/include/linux/mm.h b/include/linux/mm.h
index f9535b2c9558..692dbae6ffa7 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -608,7 +608,7 @@ static inline pte_t maybe_mkwrite(pte_t pte, struct vm_area_struct *vma)
 #endif
 
 /*
- * Define the bit shifts to access each section.  For non-existant
+ * Define the bit shifts to access each section.  For non-existent
  * sections we define the shift as 0; that plus a 0 mask ensures
  * the compiler will optimise away reference to them.
  */
@@ -861,7 +861,7 @@ extern void pagefault_out_of_memory(void);
 #define offset_in_page(p)	((unsigned long)(p) & ~PAGE_MASK)
 
 /*
- * Flags passed to __show_mem() and __show_free_areas() to suppress output in
+ * Flags passed to show_mem() and __show_free_areas() to suppress output in
  * various contexts.
  */
 #define SHOW_MEM_FILTER_NODES	(0x0001u)	/* filter disallowed nodes */
@@ -1360,8 +1360,7 @@ extern void setup_per_zone_wmarks(void);
 extern void calculate_zone_inactive_ratio(struct zone *zone);
 extern void mem_init(void);
 extern void __init mmap_init(void);
-extern void show_mem(void);
-extern void __show_mem(unsigned int flags);
+extern void show_mem(unsigned int flags);
 extern void si_meminfo(struct sysinfo * val);
 extern void si_meminfo_node(struct sysinfo *val, int nid);
 extern int after_bootmem;
diff --git a/include/linux/mmc/dw_mmc.h b/include/linux/mmc/dw_mmc.h
index c0207a770476..bdd7ceeb99e4 100644
--- a/include/linux/mmc/dw_mmc.h
+++ b/include/linux/mmc/dw_mmc.h
@@ -98,7 +98,7 @@ struct mmc_data;
  * EVENT_DATA_COMPLETE is set in @pending_events, all data-related
  * interrupts must be disabled and @data_status updated with a
  * snapshot of SR. Similarly, before EVENT_CMD_COMPLETE is set, the
- * CMDRDY interupt must be disabled and @cmd_status updated with a
+ * CMDRDY interrupt must be disabled and @cmd_status updated with a
  * snapshot of SR, and before EVENT_XFER_COMPLETE can be set, the
  * bytes_xfered field of @data must be written. This is ensured by
  * using barriers.
@@ -172,7 +172,7 @@ struct dw_mci_dma_ops {
 #define DW_MCI_QUIRK_IDMAC_DTO			BIT(0)
 /* delay needed between retries on some 2.11a implementations */
 #define DW_MCI_QUIRK_RETRY_DELAY		BIT(1)
-/* High Speed Capable - Supports HS cards (upto 50MHz) */
+/* High Speed Capable - Supports HS cards (up to 50MHz) */
 #define DW_MCI_QUIRK_HIGHSPEED			BIT(2)
 /* Unreliable card detection */
 #define DW_MCI_QUIRK_BROKEN_CARD_DETECTION	BIT(3)
diff --git a/include/linux/mfd/sh_mobile_sdhi.h b/include/linux/mmc/sh_mobile_sdhi.h
index c981b959760f..c981b959760f 100644
--- a/include/linux/mfd/sh_mobile_sdhi.h
+++ b/include/linux/mmc/sh_mobile_sdhi.h
diff --git a/include/linux/mmc/tmio.h b/include/linux/mmc/tmio.h
new file mode 100644
index 000000000000..19490b942db0
--- /dev/null
+++ b/include/linux/mmc/tmio.h
@@ -0,0 +1,63 @@
+/*
+ * include/linux/mmc/tmio.h
+ *
+ * Copyright (C) 2007 Ian Molton
+ * Copyright (C) 2004 Ian Molton
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Driver for the MMC / SD / SDIO cell found in:
+ *
+ * TC6393XB TC6391XB TC6387XB T7L66XB ASIC3
+ */
+#ifndef _LINUX_MMC_TMIO_H_
+#define _LINUX_MMC_TMIO_H_
+
+#define CTL_SD_CMD 0x00
+#define CTL_ARG_REG 0x04
+#define CTL_STOP_INTERNAL_ACTION 0x08
+#define CTL_XFER_BLK_COUNT 0xa
+#define CTL_RESPONSE 0x0c
+#define CTL_STATUS 0x1c
+#define CTL_IRQ_MASK 0x20
+#define CTL_SD_CARD_CLK_CTL 0x24
+#define CTL_SD_XFER_LEN 0x26
+#define CTL_SD_MEM_CARD_OPT 0x28
+#define CTL_SD_ERROR_DETAIL_STATUS 0x2c
+#define CTL_SD_DATA_PORT 0x30
+#define CTL_TRANSACTION_CTL 0x34
+#define CTL_SDIO_STATUS 0x36
+#define CTL_SDIO_IRQ_MASK 0x38
+#define CTL_RESET_SD 0xe0
+#define CTL_SDIO_REGS 0x100
+#define CTL_CLK_AND_WAIT_CTL 0x138
+#define CTL_RESET_SDIO 0x1e0
+
+/* Definitions for values the CTRL_STATUS register can take. */
+#define TMIO_STAT_CMDRESPEND    0x00000001
+#define TMIO_STAT_DATAEND       0x00000004
+#define TMIO_STAT_CARD_REMOVE   0x00000008
+#define TMIO_STAT_CARD_INSERT   0x00000010
+#define TMIO_STAT_SIGSTATE      0x00000020
+#define TMIO_STAT_WRPROTECT     0x00000080
+#define TMIO_STAT_CARD_REMOVE_A 0x00000100
+#define TMIO_STAT_CARD_INSERT_A 0x00000200
+#define TMIO_STAT_SIGSTATE_A    0x00000400
+#define TMIO_STAT_CMD_IDX_ERR   0x00010000
+#define TMIO_STAT_CRCFAIL       0x00020000
+#define TMIO_STAT_STOPBIT_ERR   0x00040000
+#define TMIO_STAT_DATATIMEOUT   0x00080000
+#define TMIO_STAT_RXOVERFLOW    0x00100000
+#define TMIO_STAT_TXUNDERRUN    0x00200000
+#define TMIO_STAT_CMDTIMEOUT    0x00400000
+#define TMIO_STAT_RXRDY         0x01000000
+#define TMIO_STAT_TXRQ          0x02000000
+#define TMIO_STAT_ILL_FUNC      0x20000000
+#define TMIO_STAT_CMD_BUSY      0x40000000
+#define TMIO_STAT_ILL_ACCESS    0x80000000
+
+#define TMIO_BBS		512		/* Boot block size */
+
+#endif /* _LINUX_MMC_TMIO_H_ */
diff --git a/include/linux/mroute6.h b/include/linux/mroute6.h
index 9d2deb200f54..a3759cb0ac10 100644
--- a/include/linux/mroute6.h
+++ b/include/linux/mroute6.h
@@ -249,7 +249,7 @@ static inline int ip6mr_sk_done(struct sock *sk)
  * Structure used to communicate from kernel to multicast router.
  * We'll overlay the structure onto an MLD header (not an IPv6 heder like igmpmsg{}
  * used for IPv4 implementation). This is because this structure will be passed via an
- * IPv6 raw socket, on wich an application will only receiver the payload i.e the data after
+ * IPv6 raw socket, on which an application will only receiver the payload i.e the data after
  * the IPv6 header and all the extension headers. (See section 3 of RFC 3542)
  */
 
diff --git a/include/linux/mtd/blktrans.h b/include/linux/mtd/blktrans.h
index 26529ebd59cc..1bbd9f289245 100644
--- a/include/linux/mtd/blktrans.h
+++ b/include/linux/mtd/blktrans.h
@@ -36,6 +36,7 @@ struct mtd_blktrans_dev {
 	struct mtd_info *mtd;
 	struct mutex lock;
 	int devnum;
+	bool bg_stop;
 	unsigned long size;
 	int readonly;
 	int open;
@@ -62,6 +63,7 @@ struct mtd_blktrans_ops {
 		     unsigned long block, char *buffer);
 	int (*discard)(struct mtd_blktrans_dev *dev,
 		       unsigned long block, unsigned nr_blocks);
+	void (*background)(struct mtd_blktrans_dev *dev);
 
 	/* Block layer ioctls */
 	int (*getgeo)(struct mtd_blktrans_dev *dev, struct hd_geometry *geo);
@@ -85,6 +87,7 @@ extern int register_mtd_blktrans(struct mtd_blktrans_ops *tr);
 extern int deregister_mtd_blktrans(struct mtd_blktrans_ops *tr);
 extern int add_mtd_blktrans_dev(struct mtd_blktrans_dev *dev);
 extern int del_mtd_blktrans_dev(struct mtd_blktrans_dev *dev);
+extern int mtd_blktrans_cease_background(struct mtd_blktrans_dev *dev);
 
 
 #endif /* __MTD_TRANS_H__ */
diff --git a/include/linux/mtd/cfi.h b/include/linux/mtd/cfi.h
index a9baee6864af..d24925492972 100644
--- a/include/linux/mtd/cfi.h
+++ b/include/linux/mtd/cfi.h
@@ -308,7 +308,7 @@ static inline uint32_t cfi_build_cmd_addr(uint32_t cmd_ofs,
 	
 	addr = (cmd_ofs * type) * interleave;
 
-	/* Modify the unlock address if we are in compatiblity mode.
+	/* Modify the unlock address if we are in compatibility mode.
 	 * For 16bit devices on 8 bit busses
 	 * and 32bit devices on 16 bit busses
 	 * set the low bit of the alternating bit sequence of the address.
@@ -535,6 +535,7 @@ struct cfi_fixup {
 #define CFI_MFR_CONTINUATION	0x007F
 
 #define CFI_MFR_AMD		0x0001
+#define CFI_MFR_AMIC		0x0037
 #define CFI_MFR_ATMEL		0x001F
 #define CFI_MFR_EON		0x001C
 #define CFI_MFR_FUJITSU		0x0004
diff --git a/include/linux/mtd/latch-addr-flash.h b/include/linux/mtd/latch-addr-flash.h
new file mode 100644
index 000000000000..e94b8e128074
--- /dev/null
+++ b/include/linux/mtd/latch-addr-flash.h
@@ -0,0 +1,29 @@
+/*
+ * Interface for NOR flash driver whose high address lines are latched
+ *
+ * Copyright © 2008 MontaVista Software, Inc. <source@mvista.com>
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+#ifndef __LATCH_ADDR_FLASH__
+#define __LATCH_ADDR_FLASH__
+
+struct map_info;
+struct mtd_partition;
+
+struct latch_addr_flash_data {
+	unsigned int		width;
+	unsigned int		size;
+
+	int			(*init)(void *data, int cs);
+	void			(*done)(void *data);
+	void			(*set_window)(unsigned long offset, void *data);
+	void			*data;
+
+	unsigned int		nr_parts;
+	struct mtd_partition	*parts;
+};
+
+#endif
diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
index 1f489b247a29..d44192740f6f 100644
--- a/include/linux/mtd/nand.h
+++ b/include/linux/mtd/nand.h
@@ -140,6 +140,7 @@ typedef enum {
 	NAND_ECC_HW,
 	NAND_ECC_HW_SYNDROME,
 	NAND_ECC_HW_OOB_FIRST,
+	NAND_ECC_SOFT_BCH,
 } nand_ecc_modes_t;
 
 /*
@@ -339,6 +340,7 @@ struct nand_hw_control {
  * @prepad:	padding information for syndrome based ecc generators
  * @postpad:	padding information for syndrome based ecc generators
  * @layout:	ECC layout control struct pointer
+ * @priv:	pointer to private ecc control data
  * @hwctl:	function to control hardware ecc generator. Must only
  *		be provided if an hardware ECC is available
  * @calculate:	function for ecc calculation or readback from ecc hardware
@@ -362,6 +364,7 @@ struct nand_ecc_ctrl {
 	int prepad;
 	int postpad;
 	struct nand_ecclayout	*layout;
+	void *priv;
 	void (*hwctl)(struct mtd_info *mtd, int mode);
 	int (*calculate)(struct mtd_info *mtd, const uint8_t *dat,
 			uint8_t *ecc_code);
@@ -413,9 +416,9 @@ struct nand_buffers {
  * @select_chip:	[REPLACEABLE] select chip nr
  * @block_bad:		[REPLACEABLE] check, if the block is bad
  * @block_markbad:	[REPLACEABLE] mark the block bad
- * @cmd_ctrl:		[BOARDSPECIFIC] hardwarespecific funtion for controlling
+ * @cmd_ctrl:		[BOARDSPECIFIC] hardwarespecific function for controlling
  *			ALE/CLE/nCE. Also used to write command and address
- * @init_size:		[BOARDSPECIFIC] hardwarespecific funtion for setting
+ * @init_size:		[BOARDSPECIFIC] hardwarespecific function for setting
  *			mtd->oobsize, mtd->writesize and so on.
  *			@id_data contains the 8 bytes values of NAND_CMD_READID.
  *			Return with the bus width.
@@ -434,7 +437,7 @@ struct nand_buffers {
  * @erase_cmd:		[INTERN] erase command write function, selectable due
  *			to AND support.
  * @scan_bbt:		[REPLACEABLE] function to scan bad block table
- * @chip_delay:		[BOARDSPECIFIC] chip dependent delay for transfering
+ * @chip_delay:		[BOARDSPECIFIC] chip dependent delay for transferring
  *			data from array to read regs (tR).
  * @state:		[INTERN] the current state of the NAND device
  * @oob_poi:		poison value buffer
diff --git a/include/linux/mtd/nand_bch.h b/include/linux/mtd/nand_bch.h
new file mode 100644
index 000000000000..74acf5367556
--- /dev/null
+++ b/include/linux/mtd/nand_bch.h
@@ -0,0 +1,72 @@
+/*
+ * Copyright © 2011 Ivan Djelic <ivan.djelic@parrot.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This file is the header for the NAND BCH ECC implementation.
+ */
+
+#ifndef __MTD_NAND_BCH_H__
+#define __MTD_NAND_BCH_H__
+
+struct mtd_info;
+struct nand_bch_control;
+
+#if defined(CONFIG_MTD_NAND_ECC_BCH)
+
+static inline int mtd_nand_has_bch(void) { return 1; }
+
+/*
+ * Calculate BCH ecc code
+ */
+int nand_bch_calculate_ecc(struct mtd_info *mtd, const u_char *dat,
+			   u_char *ecc_code);
+
+/*
+ * Detect and correct bit errors
+ */
+int nand_bch_correct_data(struct mtd_info *mtd, u_char *dat, u_char *read_ecc,
+			  u_char *calc_ecc);
+/*
+ * Initialize BCH encoder/decoder
+ */
+struct nand_bch_control *
+nand_bch_init(struct mtd_info *mtd, unsigned int eccsize,
+	      unsigned int eccbytes, struct nand_ecclayout **ecclayout);
+/*
+ * Release BCH encoder/decoder resources
+ */
+void nand_bch_free(struct nand_bch_control *nbc);
+
+#else /* !CONFIG_MTD_NAND_ECC_BCH */
+
+static inline int mtd_nand_has_bch(void) { return 0; }
+
+static inline int
+nand_bch_calculate_ecc(struct mtd_info *mtd, const u_char *dat,
+		       u_char *ecc_code)
+{
+	return -1;
+}
+
+static inline int
+nand_bch_correct_data(struct mtd_info *mtd, unsigned char *buf,
+		      unsigned char *read_ecc, unsigned char *calc_ecc)
+{
+	return -1;
+}
+
+static inline struct nand_bch_control *
+nand_bch_init(struct mtd_info *mtd, unsigned int eccsize,
+	      unsigned int eccbytes, struct nand_ecclayout **ecclayout)
+{
+	return NULL;
+}
+
+static inline void nand_bch_free(struct nand_bch_control *nbc) {}
+
+#endif /* CONFIG_MTD_NAND_ECC_BCH */
+
+#endif /* __MTD_NAND_BCH_H__ */
diff --git a/include/linux/mtd/onenand.h b/include/linux/mtd/onenand.h
index ae418e41d8f5..52b6f187bf49 100644
--- a/include/linux/mtd/onenand.h
+++ b/include/linux/mtd/onenand.h
@@ -198,6 +198,7 @@ struct onenand_chip {
 #define ONENAND_SKIP_UNLOCK_CHECK	(0x0100)
 #define ONENAND_PAGEBUF_ALLOC		(0x1000)
 #define ONENAND_OOBBUF_ALLOC		(0x2000)
+#define ONENAND_SKIP_INITIAL_UNLOCKING	(0x4000)
 
 #define ONENAND_IS_4KB_PAGE(this)					\
 	(this->options & ONENAND_HAS_4KB_PAGE)
diff --git a/include/linux/mtd/xip.h b/include/linux/mtd/xip.h
index 36efcba15ecd..abed4dec5c2f 100644
--- a/include/linux/mtd/xip.h
+++ b/include/linux/mtd/xip.h
@@ -51,7 +51,7 @@
  * 	return in usecs the elapsed timebetween now and the reference x as
  * 	returned by xip_currtime().
  *
- * 	note 1: convertion to usec can be approximated, as long as the
+ * 	note 1: conversion to usec can be approximated, as long as the
  * 		returned value is <= the real elapsed time.
  * 	note 2: this should be able to cope with a few seconds without
  * 		overflowing.
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 5eeb2cd3631c..0249fe7e3872 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -2598,8 +2598,8 @@ static inline int dev_ethtool_get_settings(struct net_device *dev,
 
 static inline u32 dev_ethtool_get_rx_csum(struct net_device *dev)
 {
-	if (dev->hw_features & NETIF_F_RXCSUM)
-		return !!(dev->features & NETIF_F_RXCSUM);
+	if (dev->features & NETIF_F_RXCSUM)
+		return 1;
 	if (!dev->ethtool_ops || !dev->ethtool_ops->get_rx_csum)
 		return 0;
 	return dev->ethtool_ops->get_rx_csum(dev);
diff --git a/include/linux/netfilter/nf_conntrack_proto_gre.h b/include/linux/netfilter/nf_conntrack_proto_gre.h
index 2a10efda17fb..6a0664c0c451 100644
--- a/include/linux/netfilter/nf_conntrack_proto_gre.h
+++ b/include/linux/netfilter/nf_conntrack_proto_gre.h
@@ -60,7 +60,7 @@ struct gre_hdr_pptp {
 	__be16 payload_len;	/* size of ppp payload, not inc. gre header */
 	__be16 call_id;		/* peer's call_id for this session */
 	__be32 seq;		/* sequence number.  Present if S==1 */
-	__be32 ack;		/* seq number of highest packet recieved by */
+	__be32 ack;		/* seq number of highest packet received by */
 				/*  sender in this session */
 };
 
diff --git a/include/linux/netfilter_bridge/ebtables.h b/include/linux/netfilter_bridge/ebtables.h
index 1c6f0c5f530e..8797ed16feb2 100644
--- a/include/linux/netfilter_bridge/ebtables.h
+++ b/include/linux/netfilter_bridge/ebtables.h
@@ -92,7 +92,7 @@ struct ebt_entries {
 
 /* This is a hack to make a difference between an ebt_entry struct and an
  * ebt_entries struct when traversing the entries from start to end.
- * Using this simplifies the code alot, while still being able to use
+ * Using this simplifies the code a lot, while still being able to use
  * ebt_entries.
  * Contrary, iptables doesn't use something like ebt_entries and therefore uses
  * different techniques for naming the policy and such. So, iptables doesn't
diff --git a/include/linux/nfs4.h b/include/linux/nfs4.h
index 134716e5e350..178fafe0ff93 100644
--- a/include/linux/nfs4.h
+++ b/include/linux/nfs4.h
@@ -359,7 +359,7 @@ enum nfsstat4 {
 						/* Error 10073 is unused. */
 	NFS4ERR_CLIENTID_BUSY	= 10074,	/* clientid has state */
 	NFS4ERR_PNFS_IO_HOLE	= 10075,	/* IO to _SPARSE file hole */
-	NFS4ERR_SEQ_FALSE_RETRY	= 10076,	/* retry not origional */
+	NFS4ERR_SEQ_FALSE_RETRY	= 10076,	/* retry not original */
 	NFS4ERR_BAD_HIGH_SLOT	= 10077,	/* sequence arg bad */
 	NFS4ERR_DEADSESSION	= 10078,	/* persistent session dead */
 	NFS4ERR_ENCR_ALG_UNSUPP = 10079,	/* SSV alg mismatch */
@@ -550,6 +550,7 @@ enum {
 	NFSPROC4_CLNT_SETACL,
 	NFSPROC4_CLNT_FS_LOCATIONS,
 	NFSPROC4_CLNT_RELEASE_LOCKOWNER,
+	NFSPROC4_CLNT_SECINFO,
 
 	/* nfs41 */
 	NFSPROC4_CLNT_EXCHANGE_ID,
@@ -560,6 +561,7 @@ enum {
 	NFSPROC4_CLNT_RECLAIM_COMPLETE,
 	NFSPROC4_CLNT_LAYOUTGET,
 	NFSPROC4_CLNT_GETDEVICEINFO,
+	NFSPROC4_CLNT_LAYOUTCOMMIT,
 };
 
 /* nfs41 types */
diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h
index f88522b10a38..1b93b9c60e55 100644
--- a/include/linux/nfs_fs.h
+++ b/include/linux/nfs_fs.h
@@ -33,6 +33,8 @@
 #define FLUSH_STABLE		4	/* commit to stable storage */
 #define FLUSH_LOWPRI		8	/* low priority background flush */
 #define FLUSH_HIGHPRI		16	/* high priority memory reclaim flush */
+#define FLUSH_COND_STABLE	32	/* conditional stable write - only stable
+					 * if everything fits in one RPC */
 
 #ifdef __KERNEL__
 
@@ -93,8 +95,13 @@ struct nfs_open_context {
 	int error;
 
 	struct list_head list;
+};
 
+struct nfs_open_dir_context {
+	struct rpc_cred *cred;
 	__u64 dir_cookie;
+	__u64 dup_cookie;
+	int duped;
 };
 
 /*
@@ -191,6 +198,7 @@ struct nfs_inode {
 
 	/* pNFS layout information */
 	struct pnfs_layout_hdr *layout;
+	atomic_t		commits_outstanding;
 #endif /* CONFIG_NFS_V4*/
 #ifdef CONFIG_NFS_FSCACHE
 	struct fscache_cookie	*fscache;
@@ -219,6 +227,8 @@ struct nfs_inode {
 #define NFS_INO_FSCACHE		(5)		/* inode can be cached by FS-Cache */
 #define NFS_INO_FSCACHE_LOCK	(6)		/* FS-Cache cookie management lock */
 #define NFS_INO_COMMIT		(7)		/* inode is committing unstable writes */
+#define NFS_INO_PNFS_COMMIT	(8)		/* use pnfs code for commit */
+#define NFS_INO_LAYOUTCOMMIT	(9)		/* layoutcommit required */
 
 static inline struct nfs_inode *NFS_I(const struct inode *inode)
 {
diff --git a/include/linux/nfs_page.h b/include/linux/nfs_page.h
index 90907ada6d52..91af2e49fa3a 100644
--- a/include/linux/nfs_page.h
+++ b/include/linux/nfs_page.h
@@ -33,11 +33,15 @@ enum {
 	PG_CLEAN,
 	PG_NEED_COMMIT,
 	PG_NEED_RESCHED,
+	PG_PNFS_COMMIT,
 };
 
 struct nfs_inode;
 struct nfs_page {
-	struct list_head	wb_list;	/* Defines state of page: */
+	union {
+		struct list_head	wb_list;	/* Defines state of page: */
+		struct pnfs_layout_segment *wb_commit_lseg; /* Used when PG_PNFS_COMMIT set */
+	};
 	struct page		*wb_page;	/* page to read in/write out */
 	struct nfs_open_context	*wb_context;	/* File state context info */
 	struct nfs_lock_context	*wb_lock_context;	/* lock context info */
@@ -57,6 +61,7 @@ struct nfs_pageio_descriptor {
 	size_t			pg_count;
 	size_t			pg_bsize;
 	unsigned int		pg_base;
+	char			pg_moreio;
 
 	struct inode		*pg_inode;
 	int			(*pg_doio)(struct nfs_pageio_descriptor *);
@@ -73,7 +78,6 @@ extern	struct nfs_page *nfs_create_request(struct nfs_open_context *ctx,
 					    struct page *page,
 					    unsigned int offset,
 					    unsigned int count);
-extern	void nfs_clear_request(struct nfs_page *req);
 extern	void nfs_release_request(struct nfs_page *req);
 
 
diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index 2c2c67d2eb42..78b101e487ea 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -3,6 +3,7 @@
 
 #include <linux/nfsacl.h>
 #include <linux/nfs3.h>
+#include <linux/sunrpc/gss_api.h>
 
 /*
  * To change the maximum rsize and wsize supported by the NFS client, adjust
@@ -14,6 +15,9 @@
 #define NFS_DEF_FILE_IO_SIZE	(4096U)
 #define NFS_MIN_FILE_IO_SIZE	(1024U)
 
+/* Forward declaration for NFS v3 */
+struct nfs4_secinfo_flavors;
+
 struct nfs_fsid {
 	uint64_t		major;
 	uint64_t		minor;
@@ -78,6 +82,7 @@ struct nfs_fattr {
 #define NFS_ATTR_FATTR_CHANGE		(1U << 17)
 #define NFS_ATTR_FATTR_PRECHANGE	(1U << 18)
 #define NFS_ATTR_FATTR_V4_REFERRAL	(1U << 19)	/* NFSv4 referral */
+#define NFS_ATTR_FATTR_MOUNTPOINT	(1U << 20)	/* Treat as mountpoint */
 
 #define NFS_ATTR_FATTR (NFS_ATTR_FATTR_TYPE \
 		| NFS_ATTR_FATTR_MODE \
@@ -190,8 +195,9 @@ struct nfs4_get_lease_time_res {
 #define PNFS_LAYOUT_MAXSIZE 4096
 
 struct nfs4_layoutdriver_data {
+	struct page **pages;
+	__u32 pglen;
 	__u32 len;
-	void *buf;
 };
 
 struct pnfs_layout_range {
@@ -209,6 +215,7 @@ struct nfs4_layoutget_args {
 	struct nfs_open_context *ctx;
 	struct nfs4_sequence_args seq_args;
 	nfs4_stateid stateid;
+	struct nfs4_layoutdriver_data layout;
 };
 
 struct nfs4_layoutget_res {
@@ -216,8 +223,8 @@ struct nfs4_layoutget_res {
 	struct pnfs_layout_range range;
 	__u32 type;
 	nfs4_stateid stateid;
-	struct nfs4_layoutdriver_data layout;
 	struct nfs4_sequence_res seq_res;
+	struct nfs4_layoutdriver_data *layoutp;
 };
 
 struct nfs4_layoutget {
@@ -236,6 +243,29 @@ struct nfs4_getdeviceinfo_res {
 	struct nfs4_sequence_res seq_res;
 };
 
+struct nfs4_layoutcommit_args {
+	nfs4_stateid stateid;
+	__u64 lastbytewritten;
+	struct inode *inode;
+	const u32 *bitmask;
+	struct nfs4_sequence_args seq_args;
+};
+
+struct nfs4_layoutcommit_res {
+	struct nfs_fattr *fattr;
+	const struct nfs_server *server;
+	struct nfs4_sequence_res seq_res;
+};
+
+struct nfs4_layoutcommit_data {
+	struct rpc_task task;
+	struct nfs_fattr fattr;
+	struct pnfs_layout_segment *lseg;
+	struct rpc_cred *cred;
+	struct nfs4_layoutcommit_args args;
+	struct nfs4_layoutcommit_res res;
+};
+
 /*
  * Arguments to the open call.
  */
@@ -936,6 +966,38 @@ struct nfs4_fs_locations_res {
 	struct nfs4_sequence_res	seq_res;
 };
 
+struct nfs4_secinfo_oid {
+	unsigned int len;
+	char data[GSS_OID_MAX_LEN];
+};
+
+struct nfs4_secinfo_gss {
+	struct nfs4_secinfo_oid sec_oid4;
+	unsigned int qop4;
+	unsigned int service;
+};
+
+struct nfs4_secinfo_flavor {
+	unsigned int 		flavor;
+	struct nfs4_secinfo_gss	gss;
+};
+
+struct nfs4_secinfo_flavors {
+	unsigned int num_flavors;
+	struct nfs4_secinfo_flavor flavors[0];
+};
+
+struct nfs4_secinfo_arg {
+	const struct nfs_fh		*dir_fh;
+	const struct qstr		*name;
+	struct nfs4_sequence_args	seq_args;
+};
+
+struct nfs4_secinfo_res {
+	struct nfs4_secinfo_flavors	*flavors;
+	struct nfs4_sequence_res	seq_res;
+};
+
 #endif /* CONFIG_NFS_V4 */
 
 struct nfstime4 {
@@ -1040,6 +1102,7 @@ struct nfs_write_data {
 	struct nfs_writeres	res;		/* result struct */
 	struct pnfs_layout_segment *lseg;
 	struct nfs_client	*ds_clp;	/* pNFS data server */
+	int			ds_commit_index;
 	const struct rpc_call_ops *mds_ops;
 	int (*write_done_cb) (struct rpc_task *task, struct nfs_write_data *data);
 #ifdef CONFIG_NFS_V4
@@ -1071,7 +1134,7 @@ struct nfs_rpc_ops {
 			    struct nfs_fattr *);
 	int	(*setattr) (struct dentry *, struct nfs_fattr *,
 			    struct iattr *);
-	int	(*lookup)  (struct inode *, struct qstr *,
+	int	(*lookup)  (struct rpc_clnt *clnt, struct inode *, struct qstr *,
 			    struct nfs_fh *, struct nfs_fattr *);
 	int	(*access)  (struct inode *, struct nfs_access_entry *);
 	int	(*readlink)(struct inode *, struct page *, unsigned int,
@@ -1118,6 +1181,7 @@ struct nfs_rpc_ops {
 				struct iattr *iattr);
 	int	(*init_client) (struct nfs_client *, const struct rpc_timeout *,
 				const char *, rpc_authflavor_t, int);
+	int	(*secinfo)(struct inode *, const struct qstr *, struct nfs4_secinfo_flavors *);
 };
 
 /*
diff --git a/include/linux/nfsd/export.h b/include/linux/nfsd/export.h
index bd316159278c..84058ec69390 100644
--- a/include/linux/nfsd/export.h
+++ b/include/linux/nfsd/export.h
@@ -80,7 +80,7 @@ struct nfsd4_fs_locations {
 
 /*
  * We keep an array of pseudoflavors with the export, in order from most
- * to least preferred.  For the forseeable future, we don't expect more
+ * to least preferred.  For the foreseeable future, we don't expect more
  * than the eight pseudoflavors null, unix, krb5, krb5i, krb5p, skpm3,
  * spkm3i, and spkm3p (and using all 8 at once should be rare).
  */
diff --git a/include/linux/nfsd/nfsfh.h b/include/linux/nfsd/nfsfh.h
index 80d55bbc5365..f76d80ccec10 100644
--- a/include/linux/nfsd/nfsfh.h
+++ b/include/linux/nfsd/nfsfh.h
@@ -49,7 +49,7 @@ struct nfs_fhbase_old {
  *
  * The auth_type field specifies how the filehandle can be authenticated
  * This might allow a file to be confirmed to be in a writable part of a
- * filetree without checking the path from it upto the root.
+ * filetree without checking the path from it up to the root.
  * Current values:
  *     0  - No authentication.  fb_auth is 0 bytes long
  * Possible future values:
diff --git a/include/linux/nl80211.h b/include/linux/nl80211.h
index 30022189104d..bbfa1093f606 100644
--- a/include/linux/nl80211.h
+++ b/include/linux/nl80211.h
@@ -414,7 +414,7 @@
  * @__NL80211_CMD_AFTER_LAST: internal use
  */
 enum nl80211_commands {
-/* don't change the order or add anything inbetween, this is ABI! */
+/* don't change the order or add anything between, this is ABI! */
 	NL80211_CMD_UNSPEC,
 
 	NL80211_CMD_GET_WIPHY,		/* can dump */
@@ -860,7 +860,7 @@ enum nl80211_commands {
  *	This can be used to mask out antennas which are not attached or should
  *	not be used for receiving. If an antenna is not selected in this bitmap
  *	the hardware should not be configured to receive on this antenna.
- *	For a more detailed descripton see @NL80211_ATTR_WIPHY_ANTENNA_TX.
+ *	For a more detailed description see @NL80211_ATTR_WIPHY_ANTENNA_TX.
  *
  * @NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX: Bitmap of antennas which are available
  *	for configuration as TX antennas via the above parameters.
@@ -891,7 +891,7 @@ enum nl80211_commands {
  * @__NL80211_ATTR_AFTER_LAST: internal use
  */
 enum nl80211_attrs {
-/* don't change the order or add anything inbetween, this is ABI! */
+/* don't change the order or add anything between, this is ABI! */
 	NL80211_ATTR_UNSPEC,
 
 	NL80211_ATTR_WIPHY,
@@ -1419,7 +1419,7 @@ enum nl80211_bitrate_attr {
  * 	802.11 country information element with regulatory information it
  * 	thinks we should consider. cfg80211 only processes the country
  *	code from the IE, and relies on the regulatory domain information
- *	structure pased by userspace (CRDA) from our wireless-regdb.
+ *	structure passed by userspace (CRDA) from our wireless-regdb.
  *	If a channel is enabled but the country code indicates it should
  *	be disabled we disable the channel and re-enable it upon disassociation.
  */
@@ -1598,7 +1598,7 @@ enum nl80211_mntr_flags {
  * @NL80211_MESHCONF_RETRY_TIMEOUT: specifies the initial retry timeout in
  * millisecond units, used by the Peer Link Open message
  *
- * @NL80211_MESHCONF_CONFIRM_TIMEOUT: specifies the inital confirm timeout, in
+ * @NL80211_MESHCONF_CONFIRM_TIMEOUT: specifies the initial confirm timeout, in
  * millisecond units, used by the peer link management to close a peer link
  *
  * @NL80211_MESHCONF_HOLDING_TIMEOUT: specifies the holding timeout, in
diff --git a/include/linux/notifier.h b/include/linux/notifier.h
index 2026f9e1ceb8..621dfa16acc0 100644
--- a/include/linux/notifier.h
+++ b/include/linux/notifier.h
@@ -237,7 +237,7 @@ static inline int notifier_to_errno(int ret)
 					* enabling interrupts. Must not sleep,
 					* must not fail */
 
-/* Used for CPU hotplug events occuring while tasks are frozen due to a suspend
+/* Used for CPU hotplug events occurring while tasks are frozen due to a suspend
  * operation in progress
  */
 #define CPU_TASKS_FROZEN	0x0010
diff --git a/include/linux/omap3isp.h b/include/linux/omap3isp.h
index 150822b4dbff..b6111f8cd49a 100644
--- a/include/linux/omap3isp.h
+++ b/include/linux/omap3isp.h
@@ -250,7 +250,7 @@ enum omap3isp_h3a_af_rgbpos {
 /* Contains the information regarding the Horizontal Median Filter */
 struct omap3isp_h3a_af_hmf {
 	__u8 enable;	/* Status of Horizontal Median Filter */
-	__u8 threshold;	/* Threshhold Value for Horizontal Median Filter */
+	__u8 threshold;	/* Threshold Value for Horizontal Median Filter */
 };
 
 /* Contains the information regarding the IIR Filters */
diff --git a/include/linux/page_cgroup.h b/include/linux/page_cgroup.h
index f5de21de31dd..961ecc7d30bc 100644
--- a/include/linux/page_cgroup.h
+++ b/include/linux/page_cgroup.h
@@ -138,7 +138,7 @@ static inline void move_unlock_page_cgroup(struct page_cgroup *pc,
 
 #define PCG_ARRAYID_OFFSET	(BITS_PER_LONG - PCG_ARRAYID_WIDTH)
 /*
- * Zero the shift count for non-existant fields, to prevent compiler
+ * Zero the shift count for non-existent fields, to prevent compiler
  * warnings and ensure references are optimized away.
  */
 #define PCG_ARRAYID_SHIFT	(PCG_ARRAYID_OFFSET * (PCG_ARRAYID_WIDTH != 0))
diff --git a/include/linux/pci-aspm.h b/include/linux/pci-aspm.h
index ce6810512c66..67cb3ae38016 100644
--- a/include/linux/pci-aspm.h
+++ b/include/linux/pci-aspm.h
@@ -26,6 +26,7 @@
 extern void pcie_aspm_init_link_state(struct pci_dev *pdev);
 extern void pcie_aspm_exit_link_state(struct pci_dev *pdev);
 extern void pcie_aspm_pm_state_change(struct pci_dev *pdev);
+extern void pcie_aspm_powersave_config_link(struct pci_dev *pdev);
 extern void pci_disable_link_state(struct pci_dev *pdev, int state);
 extern void pcie_clear_aspm(void);
 extern void pcie_no_aspm(void);
@@ -39,6 +40,9 @@ static inline void pcie_aspm_exit_link_state(struct pci_dev *pdev)
 static inline void pcie_aspm_pm_state_change(struct pci_dev *pdev)
 {
 }
+static inline void pcie_aspm_powersave_config_link(struct pci_dev *pdev)
+{
+}
 static inline void pci_disable_link_state(struct pci_dev *pdev, int state)
 {
 }
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 16c9f2e61977..96f70d7e058d 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -1002,12 +1002,11 @@ extern bool pcie_ports_auto;
 #endif
 
 #ifndef CONFIG_PCIEASPM
-static inline int pcie_aspm_enabled(void)
-{
-	return 0;
-}
+static inline int pcie_aspm_enabled(void) { return 0; }
+static inline bool pcie_aspm_support_enabled(void) { return false; }
 #else
 extern int pcie_aspm_enabled(void);
+extern bool pcie_aspm_support_enabled(void);
 #endif
 
 #ifdef CONFIG_PCIEAER
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index 11fd38151cc9..4e2c9150a785 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -518,7 +518,7 @@
 #define PCI_DEVICE_ID_AMD_11H_NB_MISC	0x1303
 #define PCI_DEVICE_ID_AMD_11H_NB_LINK	0x1304
 #define PCI_DEVICE_ID_AMD_15H_NB_F3	0x1603
-#define PCI_DEVICE_ID_AMD_15H_NB_LINK	0x1604
+#define PCI_DEVICE_ID_AMD_15H_NB_F4	0x1604
 #define PCI_DEVICE_ID_AMD_CNB17H_F3	0x1703
 #define PCI_DEVICE_ID_AMD_LANCE		0x2000
 #define PCI_DEVICE_ID_AMD_LANCE_HOME	0x2001
diff --git a/include/linux/pci_regs.h b/include/linux/pci_regs.h
index 5b7e6b1ba54f..be01380f798a 100644
--- a/include/linux/pci_regs.h
+++ b/include/linux/pci_regs.h
@@ -223,7 +223,7 @@
 #define  PCI_PM_CAP_PME_CLOCK	0x0008	/* PME clock required */
 #define  PCI_PM_CAP_RESERVED    0x0010  /* Reserved field */
 #define  PCI_PM_CAP_DSI		0x0020	/* Device specific initialization */
-#define  PCI_PM_CAP_AUX_POWER	0x01C0	/* Auxilliary power support mask */
+#define  PCI_PM_CAP_AUX_POWER	0x01C0	/* Auxiliary power support mask */
 #define  PCI_PM_CAP_D1		0x0200	/* D1 power state support */
 #define  PCI_PM_CAP_D2		0x0400	/* D2 power state support */
 #define  PCI_PM_CAP_PME		0x0800	/* PME pin supported */
@@ -435,7 +435,7 @@
 #define  PCI_EXP_LNKCAP_L0SEL	0x00007000 /* L0s Exit Latency */
 #define  PCI_EXP_LNKCAP_L1EL	0x00038000 /* L1 Exit Latency */
 #define  PCI_EXP_LNKCAP_CLKPM	0x00040000 /* L1 Clock Power Management */
-#define  PCI_EXP_LNKCAP_SDERC	0x00080000 /* Suprise Down Error Reporting Capable */
+#define  PCI_EXP_LNKCAP_SDERC	0x00080000 /* Surprise Down Error Reporting Capable */
 #define  PCI_EXP_LNKCAP_DLLLARC	0x00100000 /* Data Link Layer Link Active Reporting Capable */
 #define  PCI_EXP_LNKCAP_LBNC	0x00200000 /* Link Bandwidth Notification Capability */
 #define  PCI_EXP_LNKCAP_PN	0xff000000 /* Port Number */
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index f495c0147240..ee9f1e782800 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -662,7 +662,7 @@ struct pmu {
 	int  (*commit_txn)	(struct pmu *pmu); /* optional */
 	/*
 	 * Will cancel the transaction, assumes ->del() is called
-	 * for each successfull ->add() during the transaction.
+	 * for each successful ->add() during the transaction.
 	 */
 	void (*cancel_txn)	(struct pmu *pmu); /* optional */
 };
@@ -938,9 +938,7 @@ struct perf_cpu_context {
 	struct list_head		rotation_list;
 	int				jiffies_interval;
 	struct pmu			*active_pmu;
-#ifdef CONFIG_CGROUP_PERF
 	struct perf_cgroup		*cgrp;
-#endif
 };
 
 struct perf_output_handle {
@@ -1088,7 +1086,7 @@ void perf_event_task_sched_out(struct task_struct *task, struct task_struct *nex
 {
 	perf_sw_event(PERF_COUNT_SW_CONTEXT_SWITCHES, 1, 1, NULL, 0);
 
-	COND_STMT(&perf_sched_events, __perf_event_task_sched_out(task, next));
+	__perf_event_task_sched_out(task, next);
 }
 
 extern void perf_event_mmap(struct vm_area_struct *vma);
diff --git a/include/linux/pid.h b/include/linux/pid.h
index efceda0a51b1..31afb7ecbe1f 100644
--- a/include/linux/pid.h
+++ b/include/linux/pid.h
@@ -21,7 +21,7 @@ enum pid_type
  * quickly from the numeric pid value.  The attached processes may be
  * quickly accessed by following pointers from struct pid.
  *
- * Storing pid_t values in the kernel and refering to them later has a
+ * Storing pid_t values in the kernel and referring to them later has a
  * problem.  The process originally with that pid may have exited and the
  * pid allocator wrapped, and another process could have come along
  * and been assigned that pid.
diff --git a/include/linux/pkt_sched.h b/include/linux/pkt_sched.h
index b1032a3fafdc..3a02e0208575 100644
--- a/include/linux/pkt_sched.h
+++ b/include/linux/pkt_sched.h
@@ -223,7 +223,7 @@ struct tc_gred_qopt {
 	__u32		limit;        /* HARD maximal queue length (bytes)    */
 	__u32		qth_min;      /* Min average length threshold (bytes) */
 	__u32		qth_max;      /* Max average length threshold (bytes) */
-	__u32		DP;           /* upto 2^32 DPs */
+	__u32		DP;           /* up to 2^32 DPs */
 	__u32		backlog;
 	__u32		qave;
 	__u32		forced;
diff --git a/include/linux/pm.h b/include/linux/pm.h
index 6618216bb973..512e09177e57 100644
--- a/include/linux/pm.h
+++ b/include/linux/pm.h
@@ -529,13 +529,19 @@ struct dev_power_domain {
  */
 
 #ifdef CONFIG_PM_SLEEP
-extern void device_pm_lock(void);
+#ifndef CONFIG_ARCH_NO_SYSDEV_OPS
+extern int sysdev_suspend(pm_message_t state);
 extern int sysdev_resume(void);
+#else
+static inline int sysdev_suspend(pm_message_t state) { return 0; }
+static inline int sysdev_resume(void) { return 0; }
+#endif
+
+extern void device_pm_lock(void);
 extern void dpm_resume_noirq(pm_message_t state);
 extern void dpm_resume_end(pm_message_t state);
 
 extern void device_pm_unlock(void);
-extern int sysdev_suspend(pm_message_t state);
 extern int dpm_suspend_noirq(pm_message_t state);
 extern int dpm_suspend_start(pm_message_t state);
 
diff --git a/include/linux/poll.h b/include/linux/poll.h
index 1a2ccd6f3823..cf40010ce0cd 100644
--- a/include/linux/poll.h
+++ b/include/linux/poll.h
@@ -82,7 +82,7 @@ static inline int poll_schedule(struct poll_wqueues *pwq, int state)
 }
 
 /*
- * Scaleable version of the fd_set.
+ * Scalable version of the fd_set.
  */
 
 typedef struct {
diff --git a/include/linux/power/bq20z75.h b/include/linux/power/bq20z75.h
new file mode 100644
index 000000000000..b0843b68af92
--- /dev/null
+++ b/include/linux/power/bq20z75.h
@@ -0,0 +1,39 @@
+/*
+ * Gas Gauge driver for TI's BQ20Z75
+ *
+ * Copyright (c) 2010, NVIDIA Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+
+#ifndef __LINUX_POWER_BQ20Z75_H_
+#define __LINUX_POWER_BQ20Z75_H_
+
+#include <linux/power_supply.h>
+#include <linux/types.h>
+
+/**
+ * struct bq20z75_platform_data - platform data for bq20z75 devices
+ * @battery_detect:		GPIO which is used to detect battery presence
+ * @battery_detect_present:	gpio state when battery is present (0 / 1)
+ * @i2c_retry_count:		# of times to retry on i2c IO failure
+ */
+struct bq20z75_platform_data {
+	int battery_detect;
+	int battery_detect_present;
+	int i2c_retry_count;
+};
+
+#endif
diff --git a/include/linux/power/bq27x00_battery.h b/include/linux/power/bq27x00_battery.h
new file mode 100644
index 000000000000..a857f719bf40
--- /dev/null
+++ b/include/linux/power/bq27x00_battery.h
@@ -0,0 +1,19 @@
+#ifndef __LINUX_BQ27X00_BATTERY_H__
+#define __LINUX_BQ27X00_BATTERY_H__
+
+/**
+ * struct bq27000_plaform_data - Platform data for bq27000 devices
+ * @name: Name of the battery. If NULL the driver will fallback to "bq27000".
+ * @read: HDQ read callback.
+ *	This function should provide access to the HDQ bus the battery is
+ *	connected to.
+ *	The first parameter is a pointer to the battery device, the second the
+ *	register to be read. The return value should either be the content of
+ *	the passed register or an error value.
+ */
+struct bq27000_platform_data {
+	const char *name;
+	int (*read)(struct device *dev, unsigned int);
+};
+
+#endif
diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h
index 7d7325685c42..204c18dfdc9e 100644
--- a/include/linux/power_supply.h
+++ b/include/linux/power_supply.h
@@ -173,6 +173,8 @@ struct power_supply {
 	char *full_trig_name;
 	struct led_trigger *online_trig;
 	char *online_trig_name;
+	struct led_trigger *charging_blink_full_solid_trig;
+	char *charging_blink_full_solid_trig_name;
 #endif
 };
 
@@ -213,4 +215,49 @@ extern void power_supply_unregister(struct power_supply *psy);
 /* For APM emulation, think legacy userspace. */
 extern struct class *power_supply_class;
 
+static inline bool power_supply_is_amp_property(enum power_supply_property psp)
+{
+	switch (psp) {
+	case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN:
+	case POWER_SUPPLY_PROP_CHARGE_EMPTY_DESIGN:
+	case POWER_SUPPLY_PROP_CHARGE_FULL:
+	case POWER_SUPPLY_PROP_CHARGE_EMPTY:
+	case POWER_SUPPLY_PROP_CHARGE_NOW:
+	case POWER_SUPPLY_PROP_CHARGE_AVG:
+	case POWER_SUPPLY_PROP_CHARGE_COUNTER:
+	case POWER_SUPPLY_PROP_CURRENT_MAX:
+	case POWER_SUPPLY_PROP_CURRENT_NOW:
+	case POWER_SUPPLY_PROP_CURRENT_AVG:
+		return 1;
+	default:
+		break;
+	}
+
+	return 0;
+}
+
+static inline bool power_supply_is_watt_property(enum power_supply_property psp)
+{
+	switch (psp) {
+	case POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN:
+	case POWER_SUPPLY_PROP_ENERGY_EMPTY_DESIGN:
+	case POWER_SUPPLY_PROP_ENERGY_FULL:
+	case POWER_SUPPLY_PROP_ENERGY_EMPTY:
+	case POWER_SUPPLY_PROP_ENERGY_NOW:
+	case POWER_SUPPLY_PROP_ENERGY_AVG:
+	case POWER_SUPPLY_PROP_VOLTAGE_MAX:
+	case POWER_SUPPLY_PROP_VOLTAGE_MIN:
+	case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN:
+	case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN:
+	case POWER_SUPPLY_PROP_VOLTAGE_NOW:
+	case POWER_SUPPLY_PROP_VOLTAGE_AVG:
+	case POWER_SUPPLY_PROP_POWER_NOW:
+		return 1;
+	default:
+		break;
+	}
+
+	return 0;
+}
+
 #endif /* __LINUX_POWER_SUPPLY_H__ */
diff --git a/include/linux/prefetch.h b/include/linux/prefetch.h
index af7c36a5a521..a3bfbdf63d32 100644
--- a/include/linux/prefetch.h
+++ b/include/linux/prefetch.h
@@ -29,7 +29,7 @@
 	prefetchw(x)	- prefetches the cacheline at "x" for write
 	spin_lock_prefetch(x) - prefetches the spinlock *x for taking
 	
-	there is also PREFETCH_STRIDE which is the architecure-prefered 
+	there is also PREFETCH_STRIDE which is the architecure-preferred 
 	"lookahead" size for prefetching streamed operations.
 	
 */
diff --git a/include/linux/pxa2xx_ssp.h b/include/linux/pxa2xx_ssp.h
index 2f691e4e6222..44835fb39793 100644
--- a/include/linux/pxa2xx_ssp.h
+++ b/include/linux/pxa2xx_ssp.h
@@ -122,7 +122,7 @@
 #define SSCR1_TSRE		(1 << 21)	/* Transmit Service Request Enable */
 #define SSCR1_RSRE		(1 << 20)	/* Receive Service Request Enable */
 #define SSCR1_TINTE		(1 << 19)	/* Receiver Time-out Interrupt enable */
-#define SSCR1_PINTE		(1 << 18)	/* Peripheral Trailing Byte Interupt Enable */
+#define SSCR1_PINTE		(1 << 18)	/* Peripheral Trailing Byte Interrupt Enable */
 #define SSCR1_IFS		(1 << 16)	/* Invert Frame Signal */
 #define SSCR1_STRF		(1 << 15)	/* Select FIFO or EFWR */
 #define SSCR1_EFWR		(1 << 14)	/* Enable FIFO Write/Read */
diff --git a/include/linux/quotaops.h b/include/linux/quotaops.h
index eb354f6f26b3..26f9e3612e0f 100644
--- a/include/linux/quotaops.h
+++ b/include/linux/quotaops.h
@@ -277,7 +277,7 @@ static inline int dquot_alloc_space(struct inode *inode, qsize_t nr)
 		/*
 		 * Mark inode fully dirty. Since we are allocating blocks, inode
 		 * would become fully dirty soon anyway and it reportedly
-		 * reduces inode_lock contention.
+		 * reduces lock contention.
 		 */
 		mark_inode_dirty(inode);
 	}
diff --git a/include/linux/raid/md_p.h b/include/linux/raid/md_p.h
index ffa2efbbe382..75cbf4f62fe8 100644
--- a/include/linux/raid/md_p.h
+++ b/include/linux/raid/md_p.h
@@ -251,7 +251,7 @@ struct mdp_superblock_1 {
 	__le64	utime;		/* 40 bits second, 24 btes microseconds */
 	__le64	events;		/* incremented when superblock updated */
 	__le64	resync_offset;	/* data before this offset (from data_offset) known to be in sync */
-	__le32	sb_csum;	/* checksum upto devs[max_dev] */
+	__le32	sb_csum;	/* checksum up to devs[max_dev] */
 	__le32	max_dev;	/* size of devs[] array to consider */
 	__u8	pad3[64-32];	/* set to 0 when writing */
 
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index af5614856285..ff422d2b7f90 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -339,6 +339,12 @@ extern int rcu_my_thread_group_empty(void);
 		((typeof(*p) __force __kernel *)(p)); \
 	})
 
+#define __rcu_access_index(p, space) \
+	({ \
+		typeof(p) _________p1 = ACCESS_ONCE(p); \
+		rcu_dereference_sparse(p, space); \
+		(_________p1); \
+	})
 #define __rcu_dereference_index_check(p, c) \
 	({ \
 		typeof(p) _________p1 = ACCESS_ONCE(p); \
@@ -429,6 +435,20 @@ extern int rcu_my_thread_group_empty(void);
 #define rcu_dereference_raw(p) rcu_dereference_check(p, 1) /*@@@ needed? @@@*/
 
 /**
+ * rcu_access_index() - fetch RCU index with no dereferencing
+ * @p: The index to read
+ *
+ * Return the value of the specified RCU-protected index, but omit the
+ * smp_read_barrier_depends() and keep the ACCESS_ONCE().  This is useful
+ * when the value of this index is accessed, but the index is not
+ * dereferenced, for example, when testing an RCU-protected index against
+ * -1.  Although rcu_access_index() may also be used in cases where
+ * update-side locks prevent the value of the index from changing, you
+ * should instead use rcu_dereference_index_protected() for this use case.
+ */
+#define rcu_access_index(p) __rcu_access_index((p), __rcu)
+
+/**
  * rcu_dereference_index_check() - rcu_dereference for indices with debug checking
  * @p: The pointer to read, prior to dereferencing
  * @c: The conditions under which the dereference will take place
diff --git a/include/linux/regulator/ab8500.h b/include/linux/regulator/ab8500.h
index 6a210f1511fc..76579f964a29 100644
--- a/include/linux/regulator/ab8500.h
+++ b/include/linux/regulator/ab8500.h
@@ -3,8 +3,8 @@
  *
  * License Terms: GNU General Public License v2
  *
- * Author: Sundar Iyer <sundar.iyer@stericsson.com> for ST-Ericsson
- *
+ * Authors: Sundar Iyer <sundar.iyer@stericsson.com> for ST-Ericsson
+ *          Bengt Jonsson <bengt.g.jonsson@stericsson.com> for ST-Ericsson
  */
 
 #ifndef __LINUX_MFD_AB8500_REGULATOR_H
@@ -17,6 +17,7 @@ enum ab8500_regulator_id {
 	AB8500_LDO_AUX3,
 	AB8500_LDO_INTCORE,
 	AB8500_LDO_TVOUT,
+	AB8500_LDO_USB,
 	AB8500_LDO_AUDIO,
 	AB8500_LDO_ANAMIC1,
 	AB8500_LDO_ANAMIC2,
@@ -24,4 +25,50 @@ enum ab8500_regulator_id {
 	AB8500_LDO_ANA,
 	AB8500_NUM_REGULATORS,
 };
+
+/* AB8500 register initialization */
+struct ab8500_regulator_reg_init {
+	int id;
+	u8 value;
+};
+
+#define INIT_REGULATOR_REGISTER(_id, _value)	\
+	{					\
+		.id = _id,			\
+		.value = _value,		\
+	}
+
+/* AB8500 registers */
+enum ab8500_regulator_reg {
+	AB8500_REGUREQUESTCTRL2,
+	AB8500_REGUREQUESTCTRL3,
+	AB8500_REGUREQUESTCTRL4,
+	AB8500_REGUSYSCLKREQ1HPVALID1,
+	AB8500_REGUSYSCLKREQ1HPVALID2,
+	AB8500_REGUHWHPREQ1VALID1,
+	AB8500_REGUHWHPREQ1VALID2,
+	AB8500_REGUHWHPREQ2VALID1,
+	AB8500_REGUHWHPREQ2VALID2,
+	AB8500_REGUSWHPREQVALID1,
+	AB8500_REGUSWHPREQVALID2,
+	AB8500_REGUSYSCLKREQVALID1,
+	AB8500_REGUSYSCLKREQVALID2,
+	AB8500_REGUMISC1,
+	AB8500_VAUDIOSUPPLY,
+	AB8500_REGUCTRL1VAMIC,
+	AB8500_VPLLVANAREGU,
+	AB8500_VREFDDR,
+	AB8500_EXTSUPPLYREGU,
+	AB8500_VAUX12REGU,
+	AB8500_VRF1VAUX3REGU,
+	AB8500_VAUX1SEL,
+	AB8500_VAUX2SEL,
+	AB8500_VRF1VAUX3SEL,
+	AB8500_REGUCTRL2SPARE,
+	AB8500_REGUCTRLDISCH,
+	AB8500_REGUCTRLDISCH2,
+	AB8500_VSMPS1SEL1,
+	AB8500_NUM_REGULATOR_REGISTERS,
+};
+
 #endif
diff --git a/include/linux/regulator/consumer.h b/include/linux/regulator/consumer.h
index 7954f6bd7edb..9e87c1cb7270 100644
--- a/include/linux/regulator/consumer.h
+++ b/include/linux/regulator/consumer.h
@@ -153,6 +153,8 @@ int regulator_list_voltage(struct regulator *regulator, unsigned selector);
 int regulator_is_supported_voltage(struct regulator *regulator,
 				   int min_uV, int max_uV);
 int regulator_set_voltage(struct regulator *regulator, int min_uV, int max_uV);
+int regulator_set_voltage_time(struct regulator *regulator,
+			       int old_uV, int new_uV);
 int regulator_get_voltage(struct regulator *regulator);
 int regulator_sync_voltage(struct regulator *regulator);
 int regulator_set_current_limit(struct regulator *regulator,
diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h
index b8ed16a33c47..6c433b89c80d 100644
--- a/include/linux/regulator/driver.h
+++ b/include/linux/regulator/driver.h
@@ -63,7 +63,11 @@ enum regulator_status {
  *                    when running with the specified parameters.
  *
  * @enable_time: Time taken for the regulator voltage output voltage to
- *               stabalise after being enabled, in microseconds.
+ *               stabilise after being enabled, in microseconds.
+ * @set_voltage_time_sel: Time taken for the regulator voltage output voltage
+ *               to stabilise after being set to a new value, in microseconds.
+ *               The function provides the from and to voltage selector, the
+ *               function should return the worst case.
  *
  * @set_suspend_voltage: Set the voltage for the regulator when the system
  *                       is suspended.
@@ -103,8 +107,11 @@ struct regulator_ops {
 	int (*set_mode) (struct regulator_dev *, unsigned int mode);
 	unsigned int (*get_mode) (struct regulator_dev *);
 
-	/* Time taken to enable the regulator */
+	/* Time taken to enable or set voltage on the regulator */
 	int (*enable_time) (struct regulator_dev *);
+	int (*set_voltage_time_sel) (struct regulator_dev *,
+				     unsigned int old_selector,
+				     unsigned int new_selector);
 
 	/* report regulator status ... most other accessors report
 	 * control inputs, this reports results of combining inputs
diff --git a/include/linux/regulator/machine.h b/include/linux/regulator/machine.h
index 761c745b9c24..c4c4fc45f856 100644
--- a/include/linux/regulator/machine.h
+++ b/include/linux/regulator/machine.h
@@ -186,6 +186,7 @@ struct regulator_init_data {
 };
 
 int regulator_suspend_prepare(suspend_state_t state);
+int regulator_suspend_finish(void);
 
 #ifdef CONFIG_REGULATOR
 void regulator_has_full_constraints(void);
diff --git a/include/linux/reiserfs_fs.h b/include/linux/reiserfs_fs.h
index 0a3842aacba9..eca75df00fed 100644
--- a/include/linux/reiserfs_fs.h
+++ b/include/linux/reiserfs_fs.h
@@ -1557,7 +1557,7 @@ struct tree_balance {
 /* When inserting an item. */
 #define M_INSERT	'i'
 /* When inserting into (directories only) or appending onto an already
-   existant item. */
+   existent item. */
 #define M_PASTE		'p'
 /* When deleting an item. */
 #define M_DELETE	'd'
diff --git a/include/linux/sched.h b/include/linux/sched.h
index b8369d522bf8..4ec2c027e92c 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -517,7 +517,7 @@ struct thread_group_cputimer {
 struct autogroup;
 
 /*
- * NOTE! "signal_struct" does not have it's own
+ * NOTE! "signal_struct" does not have its own
  * locking, because a shared signal_struct always
  * implies a shared sighand_struct, so locking
  * sighand_struct is always a proper superset of
@@ -854,7 +854,7 @@ extern int __weak arch_sd_sibiling_asym_packing(void);
 
 /*
  * Optimise SD flags for power savings:
- * SD_BALANCE_NEWIDLE helps agressive task consolidation and power savings.
+ * SD_BALANCE_NEWIDLE helps aggressive task consolidation and power savings.
  * Keep default SD flags if sched_{smt,mc}_power_saving=0
  */
 
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 24cfa626931e..d0ae90af0b40 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -122,8 +122,14 @@ struct sk_buff_head {
 
 struct sk_buff;
 
-/* To allow 64K frame to be packed as single skb without frag_list */
+/* To allow 64K frame to be packed as single skb without frag_list. Since
+ * GRO uses frags we allocate at least 16 regardless of page size.
+ */
+#if (65536/PAGE_SIZE + 2) < 16
+#define MAX_SKB_FRAGS 16UL
+#else
 #define MAX_SKB_FRAGS (65536/PAGE_SIZE + 2)
+#endif
 
 typedef struct skb_frag_struct skb_frag_t;
 
@@ -468,7 +474,7 @@ static inline void skb_dst_set(struct sk_buff *skb, struct dst_entry *dst)
 extern void skb_dst_set_noref(struct sk_buff *skb, struct dst_entry *dst);
 
 /**
- * skb_dst_is_noref - Test if skb dst isnt refcounted
+ * skb_dst_is_noref - Test if skb dst isn't refcounted
  * @skb: buffer
  */
 static inline bool skb_dst_is_noref(const struct sk_buff *skb)
diff --git a/include/linux/smc91x.h b/include/linux/smc91x.h
index bc21db598c06..76199b75d584 100644
--- a/include/linux/smc91x.h
+++ b/include/linux/smc91x.h
@@ -21,7 +21,7 @@
 #define RPC_LED_10	(0x02)	/* LED = 10Mbps link detect */
 #define RPC_LED_FD	(0x03)	/* LED = Full Duplex Mode */
 #define RPC_LED_TX_RX	(0x04)	/* LED = TX or RX packet occurred */
-#define RPC_LED_100	(0x05)	/* LED = 100Mbps link dectect */
+#define RPC_LED_100	(0x05)	/* LED = 100Mbps link detect */
 #define RPC_LED_TX	(0x06)	/* LED = TX packet occurred */
 #define RPC_LED_RX	(0x07)	/* LED = RX packet occurred */
 
diff --git a/include/linux/socket.h b/include/linux/socket.h
index edbb1d07ddf4..d2b5e982f079 100644
--- a/include/linux/socket.h
+++ b/include/linux/socket.h
@@ -88,7 +88,7 @@ struct cmsghdr {
 };
 
 /*
- *	Ancilliary data object information MACROS
+ *	Ancillary data object information MACROS
  *	Table 5-14 of POSIX 1003.1g
  */
 
diff --git a/include/linux/sonypi.h b/include/linux/sonypi.h
index 0e6dc3891942..c0f87da78f8a 100644
--- a/include/linux/sonypi.h
+++ b/include/linux/sonypi.h
@@ -40,6 +40,7 @@
 
 /* events the user application reading /dev/sonypi can use */
 
+#define SONYPI_EVENT_IGNORE			 0
 #define SONYPI_EVENT_JOGDIAL_DOWN		 1
 #define SONYPI_EVENT_JOGDIAL_UP			 2
 #define SONYPI_EVENT_JOGDIAL_DOWN_PRESSED	 3
diff --git a/include/linux/soundcard.h b/include/linux/soundcard.h
index 1904afedb82f..fe204fe39f7c 100644
--- a/include/linux/soundcard.h
+++ b/include/linux/soundcard.h
@@ -1231,7 +1231,7 @@ void seqbuf_dump(void);	/* This function must be provided by programs */
 #define SEQ_PANNING(dev, voice, pos) SEQ_CONTROL(dev, voice, CTL_PAN, (pos+128) / 2)
 
 /*
- * Timing and syncronization macros
+ * Timing and synchronization macros
  */
 
 #define _TIMER_EVENT(ev, parm)		{_SEQ_NEEDBUF(8);\
diff --git a/include/linux/spi/spidev.h b/include/linux/spi/spidev.h
index bf0570a84f7a..52d9ed01855f 100644
--- a/include/linux/spi/spidev.h
+++ b/include/linux/spi/spidev.h
@@ -66,7 +66,7 @@
  * are in a different address space (and may be of different sizes in some
  * cases, such as 32-bit i386 userspace over a 64-bit x86_64 kernel).
  * Zero-initialize the structure, including currently unused fields, to
- * accomodate potential future updates.
+ * accommodate potential future updates.
  *
  * SPI_IOC_MESSAGE gives userspace the equivalent of kernel spi_sync().
  * Pass it an array of related transfers, they'll execute together.
diff --git a/include/linux/spinlock.h b/include/linux/spinlock.h
index 80e535897de6..0b22d51258e6 100644
--- a/include/linux/spinlock.h
+++ b/include/linux/spinlock.h
@@ -81,7 +81,7 @@
 #include <linux/spinlock_types.h>
 
 /*
- * Pull the arch_spin*() functions/declarations (UP-nondebug doesnt need them):
+ * Pull the arch_spin*() functions/declarations (UP-nondebug doesn't need them):
  */
 #ifdef CONFIG_SMP
 # include <asm/spinlock.h>
diff --git a/include/linux/stmmac.h b/include/linux/stmmac.h
index e10352915698..f29197a4b227 100644
--- a/include/linux/stmmac.h
+++ b/include/linux/stmmac.h
@@ -26,7 +26,7 @@
 #ifndef __STMMAC_PLATFORM_DATA
 #define __STMMAC_PLATFORM_DATA
 
-/* platfrom data for platfrom device structure's platfrom_data field */
+/* platform data for platform device structure's platform_data field */
 
 /* Private data for the STM on-board ethernet driver */
 struct plat_stmmacenet_data {
diff --git a/include/linux/stop_machine.h b/include/linux/stop_machine.h
index 1808960c5059..092dc9b1ce7d 100644
--- a/include/linux/stop_machine.h
+++ b/include/linux/stop_machine.h
@@ -105,7 +105,7 @@ static inline int try_stop_cpus(const struct cpumask *cpumask,
  * @cpus: the cpus to run the @fn() on (NULL = any online cpu)
  *
  * Description: This causes a thread to be scheduled on every cpu,
- * each of which disables interrupts.  The result is that noone is
+ * each of which disables interrupts.  The result is that no one is
  * holding a spinlock or inside any other preempt-disabled region when
  * @fn() runs.
  *
diff --git a/include/linux/sunrpc/cache.h b/include/linux/sunrpc/cache.h
index 7898ea13de70..8d2eef1a8582 100644
--- a/include/linux/sunrpc/cache.h
+++ b/include/linux/sunrpc/cache.h
@@ -35,10 +35,10 @@
  * Each cache must be registered so that it can be cleaned regularly.
  * When the cache is unregistered, it is flushed completely.
  *
- * Entries have a ref count and a 'hashed' flag which counts the existance
+ * Entries have a ref count and a 'hashed' flag which counts the existence
  * in the hash table.
  * We only expire entries when refcount is zero.
- * Existance in the cache is counted  the refcount.
+ * Existence in the cache is counted  the refcount.
  */
 
 /* Every cache item has a common header that is used
diff --git a/include/linux/sunrpc/gss_api.h b/include/linux/sunrpc/gss_api.h
index 5d8048beb051..332da61cf8b7 100644
--- a/include/linux/sunrpc/gss_api.h
+++ b/include/linux/sunrpc/gss_api.h
@@ -126,6 +126,9 @@ struct gss_api_mech *gss_mech_get_by_name(const char *);
 /* Similar, but get by pseudoflavor. */
 struct gss_api_mech *gss_mech_get_by_pseudoflavor(u32);
 
+/* Fill in an array with a list of supported pseudoflavors */
+int gss_mech_list_pseudoflavors(u32 *);
+
 /* Just increments the mechanism's reference count and returns its input: */
 struct gss_api_mech * gss_mech_get(struct gss_api_mech *);
 
diff --git a/include/linux/sunrpc/svcauth_gss.h b/include/linux/sunrpc/svcauth_gss.h
index ca7d725861fc..83bbee3f089c 100644
--- a/include/linux/sunrpc/svcauth_gss.h
+++ b/include/linux/sunrpc/svcauth_gss.h
@@ -2,7 +2,7 @@
  * linux/include/linux/sunrpc/svcauth_gss.h
  *
  * Bruce Fields <bfields@umich.edu>
- * Copyright (c) 2002 The Regents of the Unviersity of Michigan
+ * Copyright (c) 2002 The Regents of the University of Michigan
  */
 
 #ifndef _LINUX_SUNRPC_SVCAUTH_GSS_H
diff --git a/include/linux/sysdev.h b/include/linux/sysdev.h
index 1154c29f4101..dfb078db8ebb 100644
--- a/include/linux/sysdev.h
+++ b/include/linux/sysdev.h
@@ -7,13 +7,13 @@
  * We still have a notion of a driver for a system device, because we still
  * want to perform basic operations on these devices. 
  *
- * We also support auxillary drivers binding to devices of a certain class.
+ * We also support auxiliary drivers binding to devices of a certain class.
  * 
  * This allows configurable drivers to register themselves for devices of
  * a certain type. And, it allows class definitions to reside in generic
  * code while arch-specific code can register specific drivers.
  *
- * Auxillary drivers registered with a NULL cls are registered as drivers
+ * Auxiliary drivers registered with a NULL cls are registered as drivers
  * for all system devices, and get notification calls for each device. 
  */
 
@@ -33,12 +33,13 @@ struct sysdev_class {
 	const char *name;
 	struct list_head	drivers;
 	struct sysdev_class_attribute **attrs;
-
+	struct kset		kset;
+#ifndef CONFIG_ARCH_NO_SYSDEV_OPS
 	/* Default operations for these types of devices */
 	int	(*shutdown)(struct sys_device *);
 	int	(*suspend)(struct sys_device *, pm_message_t state);
 	int	(*resume)(struct sys_device *);
-	struct kset		kset;
+#endif
 };
 
 struct sysdev_class_attribute {
@@ -69,16 +70,18 @@ extern int sysdev_class_create_file(struct sysdev_class *,
 extern void sysdev_class_remove_file(struct sysdev_class *,
 	struct sysdev_class_attribute *);
 /**
- * Auxillary system device drivers.
+ * Auxiliary system device drivers.
  */
 
 struct sysdev_driver {
 	struct list_head	entry;
 	int	(*add)(struct sys_device *);
 	int	(*remove)(struct sys_device *);
+#ifndef CONFIG_ARCH_NO_SYSDEV_OPS
 	int	(*shutdown)(struct sys_device *);
 	int	(*suspend)(struct sys_device *, pm_message_t state);
 	int	(*resume)(struct sys_device *);
+#endif
 };
 
 
diff --git a/include/linux/timerqueue.h b/include/linux/timerqueue.h
index d24aabaca474..a520fd70a59f 100644
--- a/include/linux/timerqueue.h
+++ b/include/linux/timerqueue.h
@@ -24,7 +24,7 @@ extern struct timerqueue_node *timerqueue_iterate_next(
 						struct timerqueue_node *node);
 
 /**
- * timerqueue_getnext - Returns the timer with the earlies expiration time
+ * timerqueue_getnext - Returns the timer with the earliest expiration time
  *
  * @head: head of timerqueue
  *
diff --git a/include/linux/tracehook.h b/include/linux/tracehook.h
index 3a2e66d88a32..ebcfa4ebdbf8 100644
--- a/include/linux/tracehook.h
+++ b/include/linux/tracehook.h
@@ -169,7 +169,7 @@ static inline int tracehook_unsafe_exec(struct task_struct *task)
  * tracehook_tracer_task - return the task that is tracing the given task
  * @tsk:		task to consider
  *
- * Returns NULL if noone is tracing @task, or the &struct task_struct
+ * Returns NULL if no one is tracing @task, or the &struct task_struct
  * pointer to its tracer.
  *
  * Must called under rcu_read_lock().  The pointer returned might be kept
@@ -448,7 +448,7 @@ static inline int tracehook_force_sigpending(void)
  *
  * Return zero to check for a real pending signal normally.
  * Return -1 after releasing the siglock to repeat the check.
- * Return a signal number to induce an artifical signal delivery,
+ * Return a signal number to induce an artificial signal delivery,
  * setting *@info and *@return_ka to specify its details and behavior.
  *
  * The @return_ka->sa_handler value controls the disposition of the
diff --git a/include/linux/ucb1400.h b/include/linux/ucb1400.h
index 1b4790911052..5c75153f9441 100644
--- a/include/linux/ucb1400.h
+++ b/include/linux/ucb1400.h
@@ -8,7 +8,7 @@
  *  Copyright:	MontaVista Software, Inc.
  *
  * Spliting done by: Marek Vasut <marek.vasut@gmail.com>
- * If something doesnt work and it worked before spliting, e-mail me,
+ * If something doesn't work and it worked before spliting, e-mail me,
  * dont bother Nicolas please ;-)
  *
  * This program is free software; you can redistribute it and/or modify
diff --git a/include/linux/usb.h b/include/linux/usb.h
index e63efeb378e3..65f78ca5d88e 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -623,7 +623,7 @@ extern struct usb_host_interface *usb_find_alt_setting(
  * USB hubs.  That makes it stay the same until systems are physically
  * reconfigured, by re-cabling a tree of USB devices or by moving USB host
  * controllers.  Adding and removing devices, including virtual root hubs
- * in host controller driver modules, does not change these path identifers;
+ * in host controller driver modules, does not change these path identifiers;
  * neither does rebooting or re-enumerating.  These are more useful identifiers
  * than changeable ("unstable") ones like bus numbers or device addresses.
  *
@@ -793,7 +793,7 @@ struct usbdrv_wrap {
  *	usb_set_intfdata() to associate driver-specific data with the
  *	interface.  It may also use usb_set_interface() to specify the
  *	appropriate altsetting.  If unwilling to manage the interface,
- *	return -ENODEV, if genuine IO errors occured, an appropriate
+ *	return -ENODEV, if genuine IO errors occurred, an appropriate
  *	negative errno value.
  * @disconnect: Called when the interface is no longer accessible, usually
  *	because its device has been (or is being) disconnected or the
diff --git a/include/linux/usb/composite.h b/include/linux/usb/composite.h
index 3d29a7dcac2d..882a084a8411 100644
--- a/include/linux/usb/composite.h
+++ b/include/linux/usb/composite.h
@@ -188,7 +188,7 @@ ep_choose(struct usb_gadget *g, struct usb_endpoint_descriptor *hs,
  * @bind() method is then used to initialize all the functions and then
  * call @usb_add_function() for them.
  *
- * Those functions would normally be independant of each other, but that's
+ * Those functions would normally be independent of each other, but that's
  * not mandatory.  CDC WMC devices are an example where functions often
  * depend on other functions, with some functions subsidiary to others.
  * Such interdependency may be managed in any way, so long as all of the
diff --git a/include/linux/usb/ehci_def.h b/include/linux/usb/ehci_def.h
index 656380245198..e49dfd45baa4 100644
--- a/include/linux/usb/ehci_def.h
+++ b/include/linux/usb/ehci_def.h
@@ -159,7 +159,7 @@ struct ehci_regs {
 #define USBMODE_CM_IDLE	(0<<0)		/* idle state */
 
 /* Moorestown has some non-standard registers, partially due to the fact that
- * its EHCI controller has both TT and LPM support. HOSTPCx are extentions to
+ * its EHCI controller has both TT and LPM support. HOSTPCx are extensions to
  * PORTSCx
  */
 #define HOSTPC0		0x84		/* HOSTPC extension */
diff --git a/include/linux/usb/functionfs.h b/include/linux/usb/functionfs.h
index 6f649c13193b..7587ef934ba8 100644
--- a/include/linux/usb/functionfs.h
+++ b/include/linux/usb/functionfs.h
@@ -45,7 +45,7 @@ struct usb_functionfs_descs_head {
  * | off | name      | type         | description                          |
  * |-----+-----------+--------------+--------------------------------------|
  * |   0 | magic     | LE32         | FUNCTIONFS_{FS,HS}_DESCRIPTORS_MAGIC |
- * |   4 | lenght    | LE32         | length of the whole data chunk       |
+ * |   4 | length    | LE32         | length of the whole data chunk       |
  * |   8 | fs_count  | LE32         | number of full-speed descriptors     |
  * |  12 | hs_count  | LE32         | number of high-speed descriptors     |
  * |  16 | fs_descrs | Descriptor[] | list of full-speed descriptors       |
@@ -86,7 +86,7 @@ struct usb_functionfs_strings_head {
  * |   0 | lang    | LE16              | language code                      |
  * |   2 | strings | String[str_count] | array of strings in given language |
  *
- * For each string ther is one strings entry (ie. there are str_count
+ * For each string there is one strings entry (ie. there are str_count
  * string entries).  Each String is a NUL terminated string encoded in
  * UTF-8.
  */
diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
index 006412ce2303..e538172c0f64 100644
--- a/include/linux/usb/gadget.h
+++ b/include/linux/usb/gadget.h
@@ -72,7 +72,7 @@ struct usb_ep;
  * Bulk endpoints can use any size buffers, and can also be used for interrupt
  * transfers. interrupt-only endpoints can be much less functional.
  *
- * NOTE:  this is analagous to 'struct urb' on the host side, except that
+ * NOTE:  this is analogous to 'struct urb' on the host side, except that
  * it's thinner and promotes more pre-allocation.
  */
 
@@ -269,7 +269,7 @@ static inline void usb_ep_free_request(struct usb_ep *ep,
  *
  * Control endpoints ... after getting a setup() callback, the driver queues
  * one response (even if it would be zero length).  That enables the
- * status ack, after transfering data as specified in the response.  Setup
+ * status ack, after transferring data as specified in the response.  Setup
  * functions may return negative error codes to generate protocol stalls.
  * (Note that some USB device controllers disallow protocol stall responses
  * in some cases.)  When control responses are deferred (the response is
diff --git a/include/linux/usb/midi.h b/include/linux/usb/midi.h
index 1d1040865661..c8c52e3c91de 100644
--- a/include/linux/usb/midi.h
+++ b/include/linux/usb/midi.h
@@ -70,7 +70,7 @@ struct usb_midi_out_jack_descriptor {
 	__u8  bJackID;
 	__u8  bNrInputPins;		/* p */
 	struct usb_midi_source_pin pins[]; /* [p] */
-	/*__u8  iJack;  -- ommitted due to variable-sized pins[] */
+	/*__u8  iJack;  -- omitted due to variable-sized pins[] */
 } __attribute__ ((packed));
 
 #define USB_DT_MIDI_OUT_SIZE(p)	(7 + 2 * (p))
diff --git a/include/linux/usb/usbnet.h b/include/linux/usb/usbnet.h
index 44842c8d38c0..3c7329b8ea0e 100644
--- a/include/linux/usb/usbnet.h
+++ b/include/linux/usb/usbnet.h
@@ -97,11 +97,14 @@ struct driver_info {
 
 #define FLAG_LINK_INTR	0x0800		/* updates link (carrier) status */
 
+#define FLAG_POINTTOPOINT 0x1000	/* possibly use "usb%d" names */
+
 /*
  * Indicates to usbnet, that USB driver accumulates multiple IP packets.
  * Affects statistic (counters) and short packet handling.
  */
 #define FLAG_MULTI_PACKET	0x1000
+#define FLAG_RX_ASSEMBLE	0x2000	/* rx packets may span >1 frames */
 
 	/* init device ... can sleep, or cause probe() failure */
 	int	(*bind)(struct usbnet *, struct usb_interface *);
@@ -172,7 +175,9 @@ struct cdc_state {
 };
 
 extern int usbnet_generic_cdc_bind(struct usbnet *, struct usb_interface *);
+extern int usbnet_cdc_bind(struct usbnet *, struct usb_interface *);
 extern void usbnet_cdc_unbind(struct usbnet *, struct usb_interface *);
+extern void usbnet_cdc_status(struct usbnet *, struct urb *);
 
 /* CDC and RNDIS support the same host-chosen packet filters for IN transfers */
 #define	DEFAULT_FILTER	(USB_CDC_PACKET_TYPE_BROADCAST \
diff --git a/include/linux/usb/wusb.h b/include/linux/usb/wusb.h
index 63ebdcc5dda6..0c4d4ca370ec 100644
--- a/include/linux/usb/wusb.h
+++ b/include/linux/usb/wusb.h
@@ -126,7 +126,7 @@ enum {
 /**
  * WUSB IE: Channel Stop (WUSB1.0[7.5.8])
  *
- * Tells devices the host is going to stop sending MMCs and will dissapear.
+ * Tells devices the host is going to stop sending MMCs and will disappear.
  */
 struct wuie_channel_stop {
 	struct wuie_hdr hdr;
diff --git a/include/linux/uwb.h b/include/linux/uwb.h
index 7fc9746f22cd..b0c564ec2160 100644
--- a/include/linux/uwb.h
+++ b/include/linux/uwb.h
@@ -274,7 +274,7 @@ static inline void uwb_mas_bm_copy_le(void *dst, const struct uwb_mas_bm *mas)
 
 /**
  * struct uwb_drp_avail - a radio controller's view of MAS usage
- * @global:   MAS unused by neighbors (excluding reservations targetted
+ * @global:   MAS unused by neighbors (excluding reservations targeted
  *            or owned by the local radio controller) or the beaon period
  * @local:    MAS unused by local established reservations
  * @pending:  MAS unused by local pending reservations
@@ -702,10 +702,10 @@ void edc_init(struct edc *edc)
 	edc->timestart = jiffies;
 }
 
-/* Called when an error occured.
+/* Called when an error occurred.
  * This is way to determine if the number of acceptable errors per time
  * period has been exceeded. It is not accurate as there are cases in which
- * this scheme will not work, for example if there are periodic occurences
+ * this scheme will not work, for example if there are periodic occurrences
  * of errors that straddle updates to the start time. This scheme is
  * sufficient for our usage.
  *
diff --git a/include/linux/uwb/umc.h b/include/linux/uwb/umc.h
index 4b4fc0f43855..7b4842028ca7 100644
--- a/include/linux/uwb/umc.h
+++ b/include/linux/uwb/umc.h
@@ -132,7 +132,7 @@ int umc_match_pci_id(struct umc_driver *umc_drv, struct umc_dev *umc);
  *
  * FIXME: This is as dirty as it gets, but we need some way to check
  * the correct type of umc_dev->parent (so that for example, we can
- * cast to pci_dev). Casting to pci_dev is necesary because at some
+ * cast to pci_dev). Casting to pci_dev is necessary because at some
  * point we need to request resources from the device. Mapping is
  * easily over come (ioremap and stuff are bus agnostic), but hooking
  * up to some error handlers (such as pci error handlers) might need
diff --git a/include/linux/vgaarb.h b/include/linux/vgaarb.h
index e9e1524b582c..9c3120dca294 100644
--- a/include/linux/vgaarb.h
+++ b/include/linux/vgaarb.h
@@ -78,7 +78,7 @@ extern void vga_set_legacy_decoding(struct pci_dev *pdev,
  *     wether the card is doing legacy decoding for that type of resource. If
  *     yes, the lock is "converted" into a legacy resource lock.
  *     The arbiter will first look for all VGA cards that might conflict
- *     and disable their IOs and/or Memory access, inlcuding VGA forwarding
+ *     and disable their IOs and/or Memory access, including VGA forwarding
  *     on P2P bridges if necessary, so that the requested resources can
  *     be used. Then, the card is marked as locking these resources and
  *     the IO and/or Memory accesse are enabled on the card (including
@@ -187,7 +187,7 @@ extern struct pci_dev *vga_default_device(void);
  *     vga_conflicts
  *
  *     Architectures should define this if they have several
- *     independant PCI domains that can afford concurrent VGA
+ *     independent PCI domains that can afford concurrent VGA
  *     decoding
  */
 
diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h
index 4ed6fcd6b726..9332e52ea8c2 100644
--- a/include/linux/vmalloc.h
+++ b/include/linux/vmalloc.h
@@ -95,10 +95,27 @@ extern struct vm_struct *remove_vm_area(const void *addr);
 
 extern int map_vm_area(struct vm_struct *area, pgprot_t prot,
 			struct page ***pages);
+#ifdef CONFIG_MMU
 extern int map_kernel_range_noflush(unsigned long start, unsigned long size,
 				    pgprot_t prot, struct page **pages);
 extern void unmap_kernel_range_noflush(unsigned long addr, unsigned long size);
 extern void unmap_kernel_range(unsigned long addr, unsigned long size);
+#else
+static inline int
+map_kernel_range_noflush(unsigned long start, unsigned long size,
+			pgprot_t prot, struct page **pages)
+{
+	return size >> PAGE_SHIFT;
+}
+static inline void
+unmap_kernel_range_noflush(unsigned long addr, unsigned long size)
+{
+}
+static inline void
+unmap_kernel_range(unsigned long addr, unsigned long size)
+{
+}
+#endif
 
 /* Allocate/destroy a 'vmalloc' VM area. */
 extern struct vm_struct *alloc_vm_area(size_t size);
@@ -116,11 +133,26 @@ extern struct vm_struct *vmlist;
 extern __init void vm_area_register_early(struct vm_struct *vm, size_t align);
 
 #ifdef CONFIG_SMP
+# ifdef CONFIG_MMU
 struct vm_struct **pcpu_get_vm_areas(const unsigned long *offsets,
 				     const size_t *sizes, int nr_vms,
 				     size_t align);
 
 void pcpu_free_vm_areas(struct vm_struct **vms, int nr_vms);
+# else
+static inline struct vm_struct **
+pcpu_get_vm_areas(const unsigned long *offsets,
+		const size_t *sizes, int nr_vms,
+		size_t align)
+{
+	return NULL;
+}
+
+static inline void
+pcpu_free_vm_areas(struct vm_struct **vms, int nr_vms)
+{
+}
+# endif
 #endif
 
 #endif /* _LINUX_VMALLOC_H */
diff --git a/include/linux/wimax.h b/include/linux/wimax.h
index 4fdcc5635518..9f6b77af2f6d 100644
--- a/include/linux/wimax.h
+++ b/include/linux/wimax.h
@@ -114,7 +114,7 @@ enum {
 	WIMAX_GNL_RESET_IFIDX = 1,
 };
 
-/* Atributes for wimax_state_get() */
+/* Attributes for wimax_state_get() */
 enum {
 	WIMAX_GNL_STGET_IFIDX = 1,
 };
diff --git a/include/linux/writeback.h b/include/linux/writeback.h
index 0ead399e08b5..17e7ccc322a5 100644
--- a/include/linux/writeback.h
+++ b/include/linux/writeback.h
@@ -9,7 +9,7 @@
 
 struct backing_dev_info;
 
-extern spinlock_t inode_lock;
+extern spinlock_t inode_wb_list_lock;
 
 /*
  * fs/fs-writeback.c
diff --git a/include/linux/xilinxfb.h b/include/linux/xilinxfb.h
index f2463f559fb9..5a155a968054 100644
--- a/include/linux/xilinxfb.h
+++ b/include/linux/xilinxfb.h
@@ -16,7 +16,7 @@
 /* ML300/403 reference design framebuffer driver platform data struct */
 struct xilinxfb_platform_data {
 	u32 rotate_screen;	/* Flag to rotate display 180 degrees */
-	u32 screen_height_mm;	/* Physical dimentions of screen in mm */
+	u32 screen_height_mm;	/* Physical dimensions of screen in mm */
 	u32 screen_width_mm;
 	u32 xres, yres;		/* resolution of screen in pixels */
 	u32 xvirt, yvirt;	/* resolution of memory buffer */
diff --git a/include/media/davinci/dm355_ccdc.h b/include/media/davinci/dm355_ccdc.h
index df8a7b107477..adf2fe4bf0bb 100644
--- a/include/media/davinci/dm355_ccdc.h
+++ b/include/media/davinci/dm355_ccdc.h
@@ -193,7 +193,7 @@ struct ccdc_dft_corr_mem_ctl {
 #define CCDC_DFT_TABLE_SIZE	16
 /*
  * Main Structure for vertical defect correction. Vertical defect
- * correction can correct upto 16 defects if defects less than 16
+ * correction can correct up to 16 defects if defects less than 16
  * then pad the rest with 0
  */
 struct ccdc_vertical_dft {
diff --git a/include/media/davinci/isif.h b/include/media/davinci/isif.h
index b0b74ad618cc..7f3d76a4b9e3 100644
--- a/include/media/davinci/isif.h
+++ b/include/media/davinci/isif.h
@@ -199,7 +199,7 @@ struct isif_black_clamp {
 };
 
 /*************************************************************************
-** Color Space Convertion (CSC)
+** Color Space Conversion (CSC)
 *************************************************************************/
 #define ISIF_CSC_NUM_COEFF	16
 struct isif_color_space_conv {
diff --git a/include/media/lirc.h b/include/media/lirc.h
index 6678a169fd9e..4b3ab2966b5a 100644
--- a/include/media/lirc.h
+++ b/include/media/lirc.h
@@ -137,7 +137,7 @@
  */
 #define LIRC_SET_REC_FILTER_SPACE      _IOW('i', 0x0000001b, __u32)
 /*
- * if filter cannot be set independantly for pulse/space, this should
+ * if filter cannot be set independently for pulse/space, this should
  * be used
  */
 #define LIRC_SET_REC_FILTER            _IOW('i', 0x0000001c, __u32)
diff --git a/include/net/9p/9p.h b/include/net/9p/9p.h
index 6b75a6971346..cdf2e8ac4309 100644
--- a/include/net/9p/9p.h
+++ b/include/net/9p/9p.h
@@ -119,7 +119,7 @@ do { \
  * @P9_TREAD: request to transfer data from a file or directory
  * @P9_RREAD: response with data requested
  * @P9_TWRITE: reuqest to transfer data to a file
- * @P9_RWRITE: response with out much data was transfered to file
+ * @P9_RWRITE: response with out much data was transferred to file
  * @P9_TCLUNK: forget about a handle to an entity within the file system
  * @P9_RCLUNK: response when server has forgotten about the handle
  * @P9_TREMOVE: request to remove an entity from the hierarchy
@@ -294,7 +294,7 @@ enum p9_perm_t {
  *
  * QID types are a subset of permissions - they are primarily
  * used to differentiate semantics for a file system entity via
- * a jump-table.  Their value is also the most signifigant 16 bits
+ * a jump-table.  Their value is also the most significant 16 bits
  * of the permission_t
  *
  * See Also: http://plan9.bell-labs.com/magic/man2html/2/stat
@@ -366,8 +366,8 @@ struct p9_qid {
 /**
  * struct p9_stat - file system metadata information
  * @size: length prefix for this stat structure instance
- * @type: the type of the server (equivilent to a major number)
- * @dev: the sub-type of the server (equivilent to a minor number)
+ * @type: the type of the server (equivalent to a major number)
+ * @dev: the sub-type of the server (equivalent to a minor number)
  * @qid: unique id from the server of type &p9_qid
  * @mode: Plan 9 format permissions of type &p9_perm_t
  * @atime: Last access/read time
diff --git a/include/net/9p/client.h b/include/net/9p/client.h
index 0a30977e3c1f..85c1413f054d 100644
--- a/include/net/9p/client.h
+++ b/include/net/9p/client.h
@@ -101,7 +101,7 @@ enum p9_req_status_t {
  * Transport use an array to track outstanding requests
  * instead of a list.  While this may incurr overhead during initial
  * allocation or expansion, it makes request lookup much easier as the
- * tag id is a index into an array.  (We use tag+1 so that we can accomodate
+ * tag id is a index into an array.  (We use tag+1 so that we can accommodate
  * the -1 tag for the T_VERSION request).
  * This also has the nice effect of only having to allocate wait_queues
  * once, instead of constantly allocating and freeing them.  Its possible
diff --git a/include/net/9p/transport.h b/include/net/9p/transport.h
index 82868f18c573..8f08c736c4c3 100644
--- a/include/net/9p/transport.h
+++ b/include/net/9p/transport.h
@@ -30,7 +30,7 @@
 
 /* Default. Add Payload to PDU before sending it down to transport layer */
 #define P9_TRANS_PREF_PAYLOAD_DEF  0x0
-/* Send pay load seperately to transport layer along with PDU.*/
+/* Send pay load separately to transport layer along with PDU.*/
 #define P9_TRANS_PREF_PAYLOAD_SEP  0x1
 
 /**
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index ec6acf2f1c0b..2c0d309c7381 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -84,6 +84,8 @@ enum {
 	HCI_SERVICE_CACHE,
 	HCI_LINK_KEYS,
 	HCI_DEBUG_KEYS,
+
+	HCI_RESET,
 };
 
 /* HCI ioctl defines */
diff --git a/include/net/caif/cfcnfg.h b/include/net/caif/cfcnfg.h
index f688478bfb84..f33d36341132 100644
--- a/include/net/caif/cfcnfg.h
+++ b/include/net/caif/cfcnfg.h
@@ -69,7 +69,7 @@ void cfcnfg_remove(struct cfcnfg *cfg);
  *		cfcnfg_add_adapt_layer to specify PHY for the link.
  * @pref:	The phy (link layer) preference.
  * @fcs:	Specify if checksum is used in CAIF Framing Layer.
- * @stx:	Specify if Start Of Frame eXtention is used.
+ * @stx:	Specify if Start Of Frame extension is used.
  */
 
 void
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 60f7876b6da8..b2b9d28cb4ab 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -486,7 +486,8 @@ struct rate_info {
  * @plink_state: mesh peer link state
  * @signal: signal strength of last received packet in dBm
  * @signal_avg: signal strength average in dBm
- * @txrate: current unicast bitrate to this station
+ * @txrate: current unicast bitrate from this station
+ * @rxrate: current unicast bitrate to this station
  * @rx_packets: packets received from this station
  * @tx_packets: packets transmitted to this station
  * @tx_retries: cumulative retry counts
diff --git a/include/net/dst.h b/include/net/dst.h
index 2a46cbaef92d..75b95df4afe7 100644
--- a/include/net/dst.h
+++ b/include/net/dst.h
@@ -345,7 +345,7 @@ static inline void skb_tunnel_rx(struct sk_buff *skb, struct net_device *dev)
 
 static inline struct dst_entry *skb_dst_pop(struct sk_buff *skb)
 {
-	struct dst_entry *child = skb_dst(skb)->child;
+	struct dst_entry *child = dst_clone(skb_dst(skb)->child);
 
 	skb_dst_drop(skb);
 	return child;
diff --git a/include/net/gen_stats.h b/include/net/gen_stats.h
index fa157712e982..a79b6cfb02a8 100644
--- a/include/net/gen_stats.h
+++ b/include/net/gen_stats.h
@@ -11,7 +11,7 @@ struct gnet_dump {
 	struct sk_buff *  skb;
 	struct nlattr *   tail;
 
-	/* Backward compatability */
+	/* Backward compatibility */
 	int               compat_tc_stats;
 	int               compat_xstats;
 	void *            xstats;
diff --git a/include/net/if_inet6.h b/include/net/if_inet6.h
index 04977eefb0ee..fccc2180c61b 100644
--- a/include/net/if_inet6.h
+++ b/include/net/if_inet6.h
@@ -286,5 +286,21 @@ static inline void ipv6_ib_mc_map(const struct in6_addr *addr,
 	buf[9]  = broadcast[9];
 	memcpy(buf + 10, addr->s6_addr + 6, 10);
 }
+
+static inline int ipv6_ipgre_mc_map(const struct in6_addr *addr,
+				    const unsigned char *broadcast, char *buf)
+{
+	if ((broadcast[0] | broadcast[1] | broadcast[2] | broadcast[3]) != 0) {
+		memcpy(buf, broadcast, 4);
+	} else {
+		/* v4mapped? */
+		if ((addr->s6_addr32[0] | addr->s6_addr32[1] |
+		     (addr->s6_addr32[2] ^ htonl(0x0000ffff))) != 0)
+			return -EINVAL;
+		memcpy(buf, &addr->s6_addr32[3], 4);
+	}
+	return 0;
+}
+
 #endif
 #endif
diff --git a/include/net/ip.h b/include/net/ip.h
index a4f631108c54..7c416583b710 100644
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -339,6 +339,14 @@ static inline void ip_ib_mc_map(__be32 naddr, const unsigned char *broadcast, ch
 	buf[16] = addr & 0x0f;
 }
 
+static inline void ip_ipgre_mc_map(__be32 naddr, const unsigned char *broadcast, char *buf)
+{
+	if ((broadcast[0] | broadcast[1] | broadcast[2] | broadcast[3]) != 0)
+		memcpy(buf, broadcast, 4);
+	else
+		memcpy(buf, &naddr, sizeof(naddr));
+}
+
 #if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
 #include <linux/ipv6.h>
 #endif
diff --git a/include/net/ip6_route.h b/include/net/ip6_route.h
index 642a80bb42cf..c850e5fb967c 100644
--- a/include/net/ip6_route.h
+++ b/include/net/ip6_route.h
@@ -70,7 +70,7 @@ static inline struct inet_peer *rt6_get_peer(struct rt6_info *rt)
 extern void			ip6_route_input(struct sk_buff *skb);
 
 extern struct dst_entry *	ip6_route_output(struct net *net,
-						 struct sock *sk,
+						 const struct sock *sk,
 						 struct flowi6 *fl6);
 
 extern int			ip6_route_init(void);
diff --git a/include/net/ip_fib.h b/include/net/ip_fib.h
index a1a858035913..e5d66ec88cf6 100644
--- a/include/net/ip_fib.h
+++ b/include/net/ip_fib.h
@@ -51,7 +51,6 @@ struct fib_nh {
 	struct fib_info		*nh_parent;
 	unsigned		nh_flags;
 	unsigned char		nh_scope;
-	unsigned char		nh_cfg_scope;
 #ifdef CONFIG_IP_ROUTE_MULTIPATH
 	int			nh_weight;
 	int			nh_power;
@@ -62,6 +61,7 @@ struct fib_nh {
 	int			nh_oif;
 	__be32			nh_gw;
 	__be32			nh_saddr;
+	int			nh_saddr_genid;
 };
 
 /*
@@ -74,9 +74,10 @@ struct fib_info {
 	struct net		*fib_net;
 	int			fib_treeref;
 	atomic_t		fib_clntref;
-	int			fib_dead;
 	unsigned		fib_flags;
-	int			fib_protocol;
+	unsigned char		fib_dead;
+	unsigned char		fib_protocol;
+	unsigned char		fib_scope;
 	__be32			fib_prefsrc;
 	u32			fib_priority;
 	u32			*fib_metrics;
@@ -141,12 +142,19 @@ struct fib_result_nl {
 
 #endif /* CONFIG_IP_ROUTE_MULTIPATH */
 
-#define FIB_RES_SADDR(res)		(FIB_RES_NH(res).nh_saddr)
+extern __be32 fib_info_update_nh_saddr(struct net *net, struct fib_nh *nh);
+
+#define FIB_RES_SADDR(net, res)				\
+	((FIB_RES_NH(res).nh_saddr_genid ==		\
+	  atomic_read(&(net)->ipv4.dev_addr_genid)) ?	\
+	 FIB_RES_NH(res).nh_saddr :			\
+	 fib_info_update_nh_saddr((net), &FIB_RES_NH(res)))
 #define FIB_RES_GW(res)			(FIB_RES_NH(res).nh_gw)
 #define FIB_RES_DEV(res)		(FIB_RES_NH(res).nh_dev)
 #define FIB_RES_OIF(res)		(FIB_RES_NH(res).nh_oif)
 
-#define FIB_RES_PREFSRC(res)		((res).fi->fib_prefsrc ? : FIB_RES_SADDR(res))
+#define FIB_RES_PREFSRC(net, res)	((res).fi->fib_prefsrc ? : \
+					 FIB_RES_SADDR(net, res))
 
 struct fib_table {
 	struct hlist_node tb_hlist;
diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h
index 30b49ed72f0d..814b434db749 100644
--- a/include/net/ip_vs.h
+++ b/include/net/ip_vs.h
@@ -92,7 +92,7 @@ static inline struct net *skb_sknet(const struct sk_buff *skb)
 }
 /*
  * This one needed for single_open_net since net is stored directly in
- * private not as a struct i.e. seq_file_net cant be used.
+ * private not as a struct i.e. seq_file_net can't be used.
  */
 static inline struct net *seq_file_single_net(struct seq_file *seq)
 {
diff --git a/include/net/irda/irlap.h b/include/net/irda/irlap.h
index 17fcd964f9d9..fb4b76d5d7f1 100644
--- a/include/net/irda/irlap.h
+++ b/include/net/irda/irlap.h
@@ -204,7 +204,7 @@ struct irlap_cb {
 
 	notify_t notify; /* Callbacks to IrLMP */
 
-	int    mtt_required;  /* Minumum turnaround time required */
+	int    mtt_required;  /* Minimum turnaround time required */
 	int    xbofs_delay;   /* Nr of XBOF's used to MTT */
 	int    bofs_count;    /* Negotiated extra BOFs */
 	int    next_bofs;     /* Negotiated extra BOFs after next frame */
diff --git a/include/net/irda/wrapper.h b/include/net/irda/wrapper.h
index 2942ad6ab932..eef53ebe3d76 100644
--- a/include/net/irda/wrapper.h
+++ b/include/net/irda/wrapper.h
@@ -42,7 +42,7 @@
 
 #define IRDA_TRANS 0x20    /* Asynchronous transparency modifier */       
 
-/* States for receving a frame in async mode */
+/* States for receiving a frame in async mode */
 enum {
 	OUTSIDE_FRAME, 
 	BEGIN_FRAME, 
diff --git a/include/net/iucv/iucv.h b/include/net/iucv/iucv.h
index 205a3360156e..1121baa9f695 100644
--- a/include/net/iucv/iucv.h
+++ b/include/net/iucv/iucv.h
@@ -173,7 +173,7 @@ struct iucv_handler {
 	/*
 	 * The message_pending function is called after an icuv interrupt
 	 * type 0x06 or type 0x07 has been received. A new message is
-	 * availabe and can be received with iucv_message_receive.
+	 * available and can be received with iucv_message_receive.
 	 */
 	void (*message_pending)(struct iucv_path *, struct iucv_message *);
 	/*
diff --git a/include/net/iw_handler.h b/include/net/iw_handler.h
index 3afdb21cc31d..5d5a6a4732ef 100644
--- a/include/net/iw_handler.h
+++ b/include/net/iw_handler.h
@@ -91,7 +91,7 @@
  * --------------------
  * The implementation goals were as follow :
  *	o Obvious : you should not need a PhD to understand what's happening,
- *		the benefit is easier maintainance.
+ *		the benefit is easier maintenance.
  *	o Flexible : it should accommodate a wide variety of driver
  *		implementations and be as flexible as the old API.
  *	o Lean : it should be efficient memory wise to minimise the impact
@@ -129,7 +129,7 @@
  *
  * Functions prototype uses union iwreq_data
  * -----------------------------------------
- * Some would have prefered functions defined this way :
+ * Some would have preferred functions defined this way :
  *	static int mydriver_ioctl_setrate(struct net_device *dev, 
  *					  long rate, int auto)
  * 1) The kernel code doesn't "validate" the content of iwreq_data, and
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 8650e7bf2ed0..cb13239fe8e3 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -1160,7 +1160,7 @@ enum ieee80211_hw_flags {
  * @napi_weight: weight used for NAPI polling.  You must specify an
  *	appropriate value here if a napi_poll operation is provided
  *	by your driver.
-
+ *
  * @max_rx_aggregation_subframes: maximum buffer size (number of
  *	sub-frames) to be used for A-MPDU block ack receiver
  *	aggregation.
@@ -1294,7 +1294,7 @@ ieee80211_get_alt_retry_rate(const struct ieee80211_hw *hw,
  * acceleration (i.e. iwlwifi). Those drivers should provide update_tkip_key
  * handler.
  * The update_tkip_key() call updates the driver with the new phase 1 key.
- * This happens everytime the iv16 wraps around (every 65536 packets). The
+ * This happens every time the iv16 wraps around (every 65536 packets). The
  * set_key() call will happen only once for each key (unless the AP did
  * rekeying), it will not include a valid phase 1 key. The valid phase 1 key is
  * provided by update_tkip_key only. The trigger that makes mac80211 call this
diff --git a/include/net/netns/ipv4.h b/include/net/netns/ipv4.h
index e2e2ef57eca2..542195d9469e 100644
--- a/include/net/netns/ipv4.h
+++ b/include/net/netns/ipv4.h
@@ -55,6 +55,7 @@ struct netns_ipv4 {
 	int current_rt_cache_rebuild_count;
 
 	atomic_t rt_genid;
+	atomic_t dev_addr_genid;
 
 #ifdef CONFIG_IP_MROUTE
 #ifndef CONFIG_IP_MROUTE_MULTIPLE_TABLES
diff --git a/include/net/pkt_sched.h b/include/net/pkt_sched.h
index d9549af6929a..65afc4966204 100644
--- a/include/net/pkt_sched.h
+++ b/include/net/pkt_sched.h
@@ -32,7 +32,7 @@ static inline void *qdisc_priv(struct Qdisc *q)
    
    The result: [34]86 is not good choice for QoS router :-(
 
-   The things are not so bad, because we may use artifical
+   The things are not so bad, because we may use artificial
    clock evaluated by integration of network data flow
    in the most critical places.
  */
diff --git a/include/net/rose.h b/include/net/rose.h
index 5ba9f02731eb..555dd198aab7 100644
--- a/include/net/rose.h
+++ b/include/net/rose.h
@@ -14,6 +14,12 @@
 
 #define	ROSE_MIN_LEN			3
 
+#define	ROSE_CALL_REQ_ADDR_LEN_OFF	3
+#define	ROSE_CALL_REQ_ADDR_LEN_VAL	0xAA	/* each address is 10 digits */
+#define	ROSE_CALL_REQ_DEST_ADDR_OFF	4
+#define	ROSE_CALL_REQ_SRC_ADDR_OFF	9
+#define	ROSE_CALL_REQ_FACILITIES_OFF	14
+
 #define	ROSE_GFI			0x10
 #define	ROSE_Q_BIT			0x80
 #define	ROSE_D_BIT			0x40
@@ -214,7 +220,7 @@ extern void rose_requeue_frames(struct sock *);
 extern int  rose_validate_nr(struct sock *, unsigned short);
 extern void rose_write_internal(struct sock *, int);
 extern int  rose_decode(struct sk_buff *, int *, int *, int *, int *, int *);
-extern int  rose_parse_facilities(unsigned char *, struct rose_facilities_struct *);
+extern int  rose_parse_facilities(unsigned char *, unsigned int, struct rose_facilities_struct *);
 extern void rose_disconnect(struct sock *, int, int, int);
 
 /* rose_timer.c */
diff --git a/include/net/route.h b/include/net/route.h
index 30d6cae3841a..f88429cad52a 100644
--- a/include/net/route.h
+++ b/include/net/route.h
@@ -207,6 +207,7 @@ extern int		ip_rt_dump(struct sk_buff *skb,  struct netlink_callback *cb);
 
 struct in_ifaddr;
 extern void fib_add_ifaddr(struct in_ifaddr *);
+extern void fib_del_ifaddr(struct in_ifaddr *, struct in_ifaddr *);
 
 static inline void ip_rt_put(struct rtable * rt)
 {
@@ -269,8 +270,8 @@ static inline struct rtable *ip_route_newports(struct rtable *rt,
 		struct flowi4 fl4 = {
 			.flowi4_oif = rt->rt_oif,
 			.flowi4_mark = rt->rt_mark,
-			.daddr = rt->rt_key_dst,
-			.saddr = rt->rt_key_src,
+			.daddr = rt->rt_dst,
+			.saddr = rt->rt_src,
 			.flowi4_tos = rt->rt_tos,
 			.flowi4_proto = protocol,
 			.fl4_sport = sport,
diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h
index a9505b6a18e3..b931f021d7ab 100644
--- a/include/net/sch_generic.h
+++ b/include/net/sch_generic.h
@@ -25,6 +25,7 @@ struct qdisc_rate_table {
 enum qdisc_state_t {
 	__QDISC_STATE_SCHED,
 	__QDISC_STATE_DEACTIVATED,
+	__QDISC_STATE_THROTTLED,
 };
 
 /*
@@ -32,7 +33,6 @@ enum qdisc_state_t {
  */
 enum qdisc___state_t {
 	__QDISC___STATE_RUNNING = 1,
-	__QDISC___STATE_THROTTLED = 2,
 };
 
 struct qdisc_size_table {
@@ -106,17 +106,17 @@ static inline void qdisc_run_end(struct Qdisc *qdisc)
 
 static inline bool qdisc_is_throttled(const struct Qdisc *qdisc)
 {
-	return (qdisc->__state & __QDISC___STATE_THROTTLED) ? true : false;
+	return test_bit(__QDISC_STATE_THROTTLED, &qdisc->state) ? true : false;
 }
 
 static inline void qdisc_throttled(struct Qdisc *qdisc)
 {
-	qdisc->__state |= __QDISC___STATE_THROTTLED;
+	set_bit(__QDISC_STATE_THROTTLED, &qdisc->state);
 }
 
 static inline void qdisc_unthrottled(struct Qdisc *qdisc)
 {
-	qdisc->__state &= ~__QDISC___STATE_THROTTLED;
+	clear_bit(__QDISC_STATE_THROTTLED, &qdisc->state);
 }
 
 struct Qdisc_class_ops {
diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h
index cc9185ca8fd1..0f6e60a9c308 100644
--- a/include/net/sctp/structs.h
+++ b/include/net/sctp/structs.h
@@ -422,7 +422,7 @@ struct sctp_cookie {
 	__u32 adaptation_ind;
 
 	__u8 auth_random[sizeof(sctp_paramhdr_t) + SCTP_AUTH_RANDOM_LENGTH];
-	__u8 auth_hmacs[SCTP_AUTH_NUM_HMACS + 2];
+	__u8 auth_hmacs[SCTP_AUTH_NUM_HMACS * sizeof(__u16) + 2];
 	__u8 auth_chunks[sizeof(sctp_paramhdr_t) + SCTP_AUTH_MAX_CHUNKS];
 
 	/* This is a shim for my peer's INIT packet, followed by
diff --git a/include/net/sock.h b/include/net/sock.h
index da0534d3401c..01810a3f19df 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -1749,7 +1749,7 @@ void sock_net_set(struct sock *sk, struct net *net)
 
 /*
  * Kernel sockets, f.e. rtnl or icmp_socket, are a part of a namespace.
- * They should not hold a referrence to a namespace in order to allow
+ * They should not hold a reference to a namespace in order to allow
  * to stop it.
  * Sockets after sk_change_net should be released using sk_release_kernel
  */
diff --git a/include/net/transp_v6.h b/include/net/transp_v6.h
index eeb077dd735f..a8122dc56410 100644
--- a/include/net/transp_v6.h
+++ b/include/net/transp_v6.h
@@ -16,7 +16,7 @@ extern struct proto tcpv6_prot;
 
 struct flowi6;
 
-/* extention headers */
+/* extension headers */
 extern int				ipv6_exthdrs_init(void);
 extern void				ipv6_exthdrs_exit(void);
 extern int				ipv6_frag_init(void);
diff --git a/include/net/wimax.h b/include/net/wimax.h
index 3461aa1df1e0..c799ba7b708b 100644
--- a/include/net/wimax.h
+++ b/include/net/wimax.h
@@ -286,7 +286,7 @@ struct wimax_dev;
  *     does not disconnect the device from the bus and return 0.
  *     If that fails, it should resort to some sort of cold or bus
  *     reset (even if it implies a bus disconnection and device
- *     dissapearance). In that case, -ENODEV should be returned to
+ *     disappearance). In that case, -ENODEV should be returned to
  *     indicate the device is gone.
  *     This operation has to be synchronous, and return only when the
  *     reset is complete. In case of having had to resort to bus/cold
diff --git a/include/net/wpan-phy.h b/include/net/wpan-phy.h
index 85926231c07a..d86fffd3c03c 100644
--- a/include/net/wpan-phy.h
+++ b/include/net/wpan-phy.h
@@ -28,7 +28,7 @@ struct wpan_phy {
 	struct mutex pib_lock;
 
 	/*
-	 * This is a PIB acording to 802.15.4-2006.
+	 * This is a PIB according to 802.15.4-2006.
 	 * We do not provide timing-related variables, as they
 	 * aren't used outside of driver
 	 */
diff --git a/include/net/xfrm.h b/include/net/xfrm.h
index cffa5dc66449..6ae4bc5ce8a7 100644
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -1601,6 +1601,28 @@ static inline int xfrm_replay_state_esn_len(struct xfrm_replay_state_esn *replay
 }
 
 #ifdef CONFIG_XFRM_MIGRATE
+static inline int xfrm_replay_clone(struct xfrm_state *x,
+				     struct xfrm_state *orig)
+{
+	x->replay_esn = kzalloc(xfrm_replay_state_esn_len(orig->replay_esn),
+				GFP_KERNEL);
+	if (!x->replay_esn)
+		return -ENOMEM;
+
+	x->replay_esn->bmp_len = orig->replay_esn->bmp_len;
+	x->replay_esn->replay_window = orig->replay_esn->replay_window;
+
+	x->preplay_esn = kmemdup(x->replay_esn,
+				 xfrm_replay_state_esn_len(x->replay_esn),
+				 GFP_KERNEL);
+	if (!x->preplay_esn) {
+		kfree(x->replay_esn);
+		return -ENOMEM;
+	}
+
+	return 0;
+}
+
 static inline struct xfrm_algo *xfrm_algo_clone(struct xfrm_algo *orig)
 {
 	return kmemdup(orig, xfrm_alg_len(orig), GFP_KERNEL);
diff --git a/include/rxrpc/packet.h b/include/rxrpc/packet.h
index 9b2c30897e50..f2902ef7ab75 100644
--- a/include/rxrpc/packet.h
+++ b/include/rxrpc/packet.h
@@ -148,7 +148,7 @@ struct rxkad_challenge {
  * Kerberos security type-2 response packet
  */
 struct rxkad_response {
-	__be32		version;	/* version of this reponse type */
+	__be32		version;	/* version of this response type */
 	__be32		__pad;
 
 	/* encrypted bit of the response */
diff --git a/include/scsi/fc/fc_fcp.h b/include/scsi/fc/fc_fcp.h
index 8a143ca79878..652dec230514 100644
--- a/include/scsi/fc/fc_fcp.h
+++ b/include/scsi/fc/fc_fcp.h
@@ -75,7 +75,7 @@ struct fcp_cmnd32 {
 #define	FCP_PTA_SIMPLE	    0	/* simple task attribute */
 #define	FCP_PTA_HEADQ	    1	/* head of queue task attribute */
 #define	FCP_PTA_ORDERED     2	/* ordered task attribute */
-#define	FCP_PTA_ACA	    4	/* auto. contigent allegiance */
+#define	FCP_PTA_ACA	    4	/* auto. contingent allegiance */
 #define	FCP_PTA_MASK	    7	/* mask for task attribute field */
 #define	FCP_PRI_SHIFT	    3	/* priority field starts in bit 3 */
 #define	FCP_PRI_RESVD_MASK  0x80	/* reserved bits in priority field */
diff --git a/include/scsi/iscsi_if.h b/include/scsi/iscsi_if.h
index c3e1cbcc2ad2..ddb04568a509 100644
--- a/include/scsi/iscsi_if.h
+++ b/include/scsi/iscsi_if.h
@@ -292,7 +292,7 @@ enum iscsi_param {
 	ISCSI_PARAM_PERSISTENT_PORT,
 	ISCSI_PARAM_SESS_RECOVERY_TMO,
 
-	/* pased in through bind conn using transport_fd */
+	/* passed in through bind conn using transport_fd */
 	ISCSI_PARAM_CONN_PORT,
 	ISCSI_PARAM_CONN_ADDRESS,
 
diff --git a/include/scsi/libfc.h b/include/scsi/libfc.h
index 24193c1b0da0..a3cbda4ddb5c 100644
--- a/include/scsi/libfc.h
+++ b/include/scsi/libfc.h
@@ -260,7 +260,7 @@ struct fcoe_dev_stats {
 /**
  * struct fc_seq_els_data - ELS data used for passing ELS specific responses
  * @reason: The reason for rejection
- * @explan: The explaination of the rejection
+ * @explan: The explanation of the rejection
  *
  * Mainly used by the exchange manager layer.
  */
@@ -525,7 +525,7 @@ struct libfc_function_template {
 			struct fc_frame *);
 
 	/*
-	 * Send an ELS response using infomation from the received frame.
+	 * Send an ELS response using information from the received frame.
 	 *
 	 * STATUS: OPTIONAL
 	 */
@@ -663,7 +663,7 @@ struct libfc_function_template {
 	int (*rport_logoff)(struct fc_rport_priv *);
 
 	/*
-	 * Recieve a request from a remote port.
+	 * Receive a request from a remote port.
 	 *
 	 * STATUS: OPTIONAL
 	 */
@@ -704,7 +704,7 @@ struct libfc_function_template {
 					 void *));
 
 	/*
-	 * Cleanup the FCP layer, used durring link down and reset
+	 * Cleanup the FCP layer, used during link down and reset
 	 *
 	 * STATUS: OPTIONAL
 	 */
diff --git a/include/scsi/libiscsi_tcp.h b/include/scsi/libiscsi_tcp.h
index 741ae7ed4394..ac0cc1d925ef 100644
--- a/include/scsi/libiscsi_tcp.h
+++ b/include/scsi/libiscsi_tcp.h
@@ -47,11 +47,12 @@ struct iscsi_segment {
 	struct scatterlist	*sg;
 	void			*sg_mapped;
 	unsigned int		sg_offset;
+	bool			atomic_mapped;
 
 	iscsi_segment_done_fn_t	*done;
 };
 
-/* Socket connection recieve helper */
+/* Socket connection receive helper */
 struct iscsi_tcp_recv {
 	struct iscsi_hdr	*hdr;
 	struct iscsi_segment	segment;
diff --git a/include/scsi/osd_initiator.h b/include/scsi/osd_initiator.h
index 53a9e886612b..0a5079974fe9 100644
--- a/include/scsi/osd_initiator.h
+++ b/include/scsi/osd_initiator.h
@@ -265,7 +265,7 @@ int osd_execute_request_async(struct osd_request *or,
  * @osi           - Recievs a more detailed error report information (optional).
  * @silent        - Do not print to dmsg (Even if enabled)
  * @bad_obj_list  - Some commands act on multiple objects. Failed objects will
- *                  be recieved here (optional)
+ *                  be received here (optional)
  * @max_obj       - Size of @bad_obj_list.
  * @bad_attr_list - List of failing attributes (optional)
  * @max_attr      - Size of @bad_attr_list.
diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
index f171c65dc5a8..2d3ec5094685 100644
--- a/include/scsi/scsi_device.h
+++ b/include/scsi/scsi_device.h
@@ -462,7 +462,7 @@ static inline int scsi_device_qas(struct scsi_device *sdev)
 }
 static inline int scsi_device_enclosure(struct scsi_device *sdev)
 {
-	return sdev->inquiry[6] & (1<<6);
+	return sdev->inquiry ? (sdev->inquiry[6] & (1<<6)) : 1;
 }
 
 static inline int scsi_device_protection(struct scsi_device *sdev)
diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h
index e7e385842a38..f1f2644137b8 100644
--- a/include/scsi/scsi_host.h
+++ b/include/scsi/scsi_host.h
@@ -46,7 +46,7 @@ struct blk_queue_tags;
 enum {
 	SCSI_QDEPTH_DEFAULT,	/* default requested change, e.g. from sysfs */
 	SCSI_QDEPTH_QFULL,	/* scsi-ml requested due to queue full */
-	SCSI_QDEPTH_RAMP_UP,	/* scsi-ml requested due to threshhold event */
+	SCSI_QDEPTH_RAMP_UP,	/* scsi-ml requested due to threshold event */
 };
 
 struct scsi_host_template {
diff --git a/include/scsi/scsi_transport_fc.h b/include/scsi/scsi_transport_fc.h
index 59816fe31e68..2a65167a8f10 100644
--- a/include/scsi/scsi_transport_fc.h
+++ b/include/scsi/scsi_transport_fc.h
@@ -192,9 +192,9 @@ struct fc_vport_identifiers {
  *
  * This structure exists for each FC port is a virtual FC port. Virtual
  * ports share the physical link with the Physical port. Each virtual
- * ports has a unique presense on the SAN, and may be instantiated via
+ * ports has a unique presence on the SAN, and may be instantiated via
  * NPIV, Virtual Fabrics, or via additional ALPAs. As the vport is a
- * unique presense, each vport has it's own view of the fabric,
+ * unique presence, each vport has it's own view of the fabric,
  * authentication privilege, and priorities.
  *
  * A virtual port may support 1 or more FC4 roles. Typically it is a
@@ -370,7 +370,7 @@ struct fc_rport {	/* aka fc_starget_attrs */
 /*
  * FC SCSI Target Attributes
  *
- * The SCSI Target is considered an extention of a remote port (as
+ * The SCSI Target is considered an extension of a remote port (as
  * a remote port can be more than a SCSI Target). Within the scsi
  * subsystem, we leave the Target as a separate entity. Doing so
  * provides backward compatibility with prior FC transport api's,
diff --git a/include/sound/ac97_codec.h b/include/sound/ac97_codec.h
index f1dcefe4532b..02cbb50225bb 100644
--- a/include/sound/ac97_codec.h
+++ b/include/sound/ac97_codec.h
@@ -385,7 +385,7 @@
 #define AC97_SCAP_DETECT_BY_VENDOR (1<<8) /* use vendor registers for read tests */
 #define AC97_SCAP_NO_SPDIF	(1<<9)	/* don't build SPDIF controls */
 #define AC97_SCAP_EAPD_LED	(1<<10)	/* EAPD as mute LED */
-#define AC97_SCAP_POWER_SAVE	(1<<11)	/* capable for aggresive power-saving */
+#define AC97_SCAP_POWER_SAVE	(1<<11)	/* capable for aggressive power-saving */
 
 /* ac97->flags */
 #define AC97_HAS_PC_BEEP	(1<<0)	/* force PC Speaker usage */
diff --git a/include/sound/control.h b/include/sound/control.h
index e67db2869360..404acb859cee 100644
--- a/include/sound/control.h
+++ b/include/sound/control.h
@@ -191,7 +191,7 @@ int _snd_ctl_add_slave(struct snd_kcontrol *master, struct snd_kcontrol *slave,
  * Returns zero if successful or a negative error code.
  *
  * All slaves must be the same type (returning the same information
- * via info callback).  The fucntion doesn't check it, so it's your
+ * via info callback).  The function doesn't check it, so it's your
  * responsibility.
  *
  * Also, some additional limitations:
diff --git a/include/sound/cs46xx_dsp_spos.h b/include/sound/cs46xx_dsp_spos.h
index 49b03c9e5e55..8008c59288a6 100644
--- a/include/sound/cs46xx_dsp_spos.h
+++ b/include/sound/cs46xx_dsp_spos.h
@@ -147,7 +147,7 @@ struct dsp_pcm_channel_descriptor {
 };
 
 struct dsp_spos_instance {
-	struct dsp_symbol_desc symbol_table; /* currently availble loaded symbols in SP */
+	struct dsp_symbol_desc symbol_table; /* currently available loaded symbols in SP */
 
 	int nmodules;
 	struct dsp_module_desc * modules; /* modules loaded into SP */
diff --git a/include/sound/hdspm.h b/include/sound/hdspm.h
index 1774ff5ff632..1f59ea2a4a76 100644
--- a/include/sound/hdspm.h
+++ b/include/sound/hdspm.h
@@ -193,7 +193,7 @@ struct hdspm_version {
  * 32768 Bytes
  */
 
-/* organisation is 64 channelfader in a continous memory block */
+/* organisation is 64 channelfader in a continuous memory block */
 /* equivalent to hardware definition, maybe for future feature of mmap of
  * them
  */
diff --git a/include/sound/pcm.h b/include/sound/pcm.h
index 430a9cc045e2..e1bad1130616 100644
--- a/include/sound/pcm.h
+++ b/include/sound/pcm.h
@@ -1031,9 +1031,7 @@ int snd_pcm_lib_mmap_iomem(struct snd_pcm_substream *substream, struct vm_area_s
 #define snd_pcm_lib_mmap_iomem	NULL
 #endif
 
-int snd_pcm_lib_mmap_noncached(struct snd_pcm_substream *substream,
-			       struct vm_area_struct *area);
-#define snd_pcm_lib_mmap_vmalloc	snd_pcm_lib_mmap_noncached
+#define snd_pcm_lib_mmap_vmalloc NULL
 
 static inline void snd_pcm_limit_isa_dma_size(int dma, size_t *max)
 {
diff --git a/include/sound/soc-dapm.h b/include/sound/soc-dapm.h
index 979ed84e07d6..f72c1039a6fb 100644
--- a/include/sound/soc-dapm.h
+++ b/include/sound/soc-dapm.h
@@ -23,7 +23,7 @@
 /*
  * SoC dynamic audio power management
  *
- * We can have upto 4 power domains
+ * We can have up to 4 power domains
  * 	1. Codec domain - VREF, VMID
  *     Usually controlled at codec probe/remove, although can be set
  *     at stream time if power is not needed for sidetone, etc.
@@ -45,25 +45,25 @@
 /* platform domain */
 #define SND_SOC_DAPM_INPUT(wname) \
 {	.id = snd_soc_dapm_input, .name = wname, .kcontrols = NULL, \
-	.num_kcontrols = 0}
+	.num_kcontrols = 0, .reg = SND_SOC_NOPM }
 #define SND_SOC_DAPM_OUTPUT(wname) \
 {	.id = snd_soc_dapm_output, .name = wname, .kcontrols = NULL, \
-	.num_kcontrols = 0}
+	.num_kcontrols = 0, .reg = SND_SOC_NOPM }
 #define SND_SOC_DAPM_MIC(wname, wevent) \
 {	.id = snd_soc_dapm_mic, .name = wname, .kcontrols = NULL, \
-	.num_kcontrols = 0, .event = wevent, \
+	.num_kcontrols = 0, .reg = SND_SOC_NOPM, .event = wevent, \
 	.event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD}
 #define SND_SOC_DAPM_HP(wname, wevent) \
 {	.id = snd_soc_dapm_hp, .name = wname, .kcontrols = NULL, \
-	.num_kcontrols = 0, .event = wevent, \
+	.num_kcontrols = 0, .reg = SND_SOC_NOPM, .event = wevent, \
 	.event_flags = SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD}
 #define SND_SOC_DAPM_SPK(wname, wevent) \
 {	.id = snd_soc_dapm_spk, .name = wname, .kcontrols = NULL, \
-	.num_kcontrols = 0, .event = wevent, \
+	.num_kcontrols = 0, .reg = SND_SOC_NOPM, .event = wevent, \
 	.event_flags = SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD}
 #define SND_SOC_DAPM_LINE(wname, wevent) \
 {	.id = snd_soc_dapm_line, .name = wname, .kcontrols = NULL, \
-	.num_kcontrols = 0, .event = wevent, \
+	.num_kcontrols = 0, .reg = SND_SOC_NOPM, .event = wevent, \
 	.event_flags = SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD}
 
 /* path domain */
@@ -189,11 +189,11 @@
 /* events that are pre and post DAPM */
 #define SND_SOC_DAPM_PRE(wname, wevent) \
 {	.id = snd_soc_dapm_pre, .name = wname, .kcontrols = NULL, \
-	.num_kcontrols = 0, .event = wevent, \
+	.num_kcontrols = 0, .reg = SND_SOC_NOPM, .event = wevent, \
 	.event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_PRE_PMD}
 #define SND_SOC_DAPM_POST(wname, wevent) \
 {	.id = snd_soc_dapm_post, .name = wname, .kcontrols = NULL, \
-	.num_kcontrols = 0, .event = wevent, \
+	.num_kcontrols = 0, .reg = SND_SOC_NOPM, .event = wevent, \
 	.event_flags = SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD}
 
 /* stream domain */
diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h
index 0828b6c8610a..1d3b5b2f0dbc 100644
--- a/include/target/target_core_base.h
+++ b/include/target/target_core_base.h
@@ -9,7 +9,7 @@
 #include <net/sock.h>
 #include <net/tcp.h>
 
-#define TARGET_CORE_MOD_VERSION		"v4.0.0-rc6"
+#define TARGET_CORE_MOD_VERSION		"v4.0.0-rc7-ml"
 #define SHUTDOWN_SIGS	(sigmask(SIGKILL)|sigmask(SIGINT)|sigmask(SIGABRT))
 
 /* Used by transport_generic_allocate_iovecs() */
@@ -22,7 +22,7 @@
  * Note that both include/scsi/scsi_cmnd.h:MAX_COMMAND_SIZE and
  * include/linux/blkdev.h:BLOCK_MAX_CDB as of v2.6.36-rc4 still use
  * 16-byte CDBs by default and require an extra allocation for
- * 32-byte CDBs to becasue of legacy issues.
+ * 32-byte CDBs to because of legacy issues.
  *
  * Within TCM Core there are no such legacy limitiations, so we go ahead
  * use 32-byte CDBs by default and use include/scsi/scsi.h:scsi_command_size()
@@ -239,7 +239,7 @@ struct t10_alua_lu_gp {
 } ____cacheline_aligned;
 
 struct t10_alua_lu_gp_member {
-	int lu_gp_assoc:1;
+	bool lu_gp_assoc;
 	atomic_t lu_gp_mem_ref_cnt;
 	spinlock_t lu_gp_mem_lock;
 	struct t10_alua_lu_gp *lu_gp;
@@ -271,7 +271,7 @@ struct t10_alua_tg_pt_gp {
 } ____cacheline_aligned;
 
 struct t10_alua_tg_pt_gp_member {
-	int tg_pt_gp_assoc:1;
+	bool tg_pt_gp_assoc;
 	atomic_t tg_pt_gp_mem_ref_cnt;
 	spinlock_t tg_pt_gp_mem_lock;
 	struct t10_alua_tg_pt_gp *tg_pt_gp;
@@ -302,7 +302,7 @@ struct t10_wwn {
 
 
 /*
- * Used by TCM Core internally to signal if >= SPC-3 peristent reservations
+ * Used by TCM Core internally to signal if >= SPC-3 persistent reservations
  * emulation is enabled or disabled, or running in with TCM/pSCSI passthrough
  * mode
  */
@@ -336,7 +336,7 @@ struct t10_pr_registration {
 	int pr_res_type;
 	int pr_res_scope;
 	/* Used for fabric initiator WWPNs using a ISID */
-	int isid_present_at_reg:1;
+	bool isid_present_at_reg;
 	u32 pr_res_mapped_lun;
 	u32 pr_aptpl_target_lun;
 	u32 pr_res_generation;
@@ -418,7 +418,7 @@ struct se_transport_task {
 	unsigned long long	t_task_lba;
 	int			t_tasks_failed;
 	int			t_tasks_fua;
-	int			t_tasks_bidi:1;
+	bool			t_tasks_bidi;
 	u32			t_task_cdbs;
 	u32			t_tasks_check;
 	u32			t_tasks_no;
@@ -470,7 +470,7 @@ struct se_task {
 	u8		task_flags;
 	int		task_error_status;
 	int		task_state_flags;
-	int		task_padded_sg:1;
+	bool		task_padded_sg;
 	unsigned long long	task_lba;
 	u32		task_no;
 	u32		task_sectors;
@@ -494,8 +494,8 @@ struct se_task {
 	struct list_head t_state_list;
 } ____cacheline_aligned;
 
-#define TASK_CMD(task)	((struct se_cmd *)task->task_se_cmd)
-#define TASK_DEV(task)	((struct se_device *)task->se_dev)
+#define TASK_CMD(task)	((task)->task_se_cmd)
+#define TASK_DEV(task)	((task)->se_dev)
 
 struct se_cmd {
 	/* SAM response code being sent to initiator */
@@ -551,8 +551,8 @@ struct se_cmd {
 	void (*transport_complete_callback)(struct se_cmd *);
 } ____cacheline_aligned;
 
-#define T_TASK(cmd)     ((struct se_transport_task *)(cmd->t_task))
-#define CMD_TFO(cmd) ((struct target_core_fabric_ops *)cmd->se_tfo)
+#define T_TASK(cmd)     ((cmd)->t_task)
+#define CMD_TFO(cmd)	((cmd)->se_tfo)
 
 struct se_tmr_req {
 	/* Task Management function to be preformed */
@@ -583,7 +583,7 @@ struct se_ua {
 struct se_node_acl {
 	char			initiatorname[TRANSPORT_IQN_LEN];
 	/* Used to signal demo mode created ACL, disabled by default */
-	int			dynamic_node_acl:1;
+	bool			dynamic_node_acl;
 	u32			queue_depth;
 	u32			acl_index;
 	u64			num_cmds;
@@ -601,7 +601,8 @@ struct se_node_acl {
 	struct config_group	acl_attrib_group;
 	struct config_group	acl_auth_group;
 	struct config_group	acl_param_group;
-	struct config_group	*acl_default_groups[4];
+	struct config_group	acl_fabric_stat_group;
+	struct config_group	*acl_default_groups[5];
 	struct list_head	acl_list;
 	struct list_head	acl_sess_list;
 } ____cacheline_aligned;
@@ -615,13 +616,19 @@ struct se_session {
 	struct list_head	sess_acl_list;
 } ____cacheline_aligned;
 
-#define SE_SESS(cmd)		((struct se_session *)(cmd)->se_sess)
-#define SE_NODE_ACL(sess)	((struct se_node_acl *)(sess)->se_node_acl)
+#define SE_SESS(cmd)		((cmd)->se_sess)
+#define SE_NODE_ACL(sess)	((sess)->se_node_acl)
 
 struct se_device;
 struct se_transform_info;
 struct scatterlist;
 
+struct se_ml_stat_grps {
+	struct config_group	stat_group;
+	struct config_group	scsi_auth_intr_group;
+	struct config_group	scsi_att_intr_port_group;
+};
+
 struct se_lun_acl {
 	char			initiatorname[TRANSPORT_IQN_LEN];
 	u32			mapped_lun;
@@ -629,10 +636,13 @@ struct se_lun_acl {
 	struct se_lun		*se_lun;
 	struct list_head	lacl_list;
 	struct config_group	se_lun_group;
+	struct se_ml_stat_grps	ml_stat_grps;
 }  ____cacheline_aligned;
 
+#define ML_STAT_GRPS(lacl)	(&(lacl)->ml_stat_grps)
+
 struct se_dev_entry {
-	int			def_pr_registered:1;
+	bool			def_pr_registered;
 	/* See transport_lunflags_table */
 	u32			lun_flags;
 	u32			deve_cmds;
@@ -693,6 +703,13 @@ struct se_dev_attrib {
 	struct config_group da_group;
 } ____cacheline_aligned;
 
+struct se_dev_stat_grps {
+	struct config_group stat_group;
+	struct config_group scsi_dev_group;
+	struct config_group scsi_tgt_dev_group;
+	struct config_group scsi_lu_group;
+};
+
 struct se_subsystem_dev {
 /* Used for struct se_subsystem_dev-->se_dev_alias, must be less than PAGE_SIZE */
 #define SE_DEV_ALIAS_LEN		512
@@ -716,11 +733,14 @@ struct se_subsystem_dev {
 	struct config_group se_dev_group;
 	/* For T10 Reservations */
 	struct config_group se_dev_pr_group;
+	/* For target_core_stat.c groups */
+	struct se_dev_stat_grps dev_stat_grps;
 } ____cacheline_aligned;
 
 #define T10_ALUA(su_dev)	(&(su_dev)->t10_alua)
 #define T10_RES(su_dev)		(&(su_dev)->t10_reservation)
 #define T10_PR_OPS(su_dev)	(&(su_dev)->t10_reservation.pr_ops)
+#define DEV_STAT_GRP(dev)	(&(dev)->dev_stat_grps)
 
 struct se_device {
 	/* Set to 1 if thread is NOT sleeping on thread_sem */
@@ -803,8 +823,8 @@ struct se_device {
 	struct list_head	g_se_dev_list;
 }  ____cacheline_aligned;
 
-#define SE_DEV(cmd)		((struct se_device *)(cmd)->se_lun->lun_se_dev)
-#define SU_DEV(dev)		((struct se_subsystem_dev *)(dev)->se_sub_dev)
+#define SE_DEV(cmd)		((cmd)->se_lun->lun_se_dev)
+#define SU_DEV(dev)		((dev)->se_sub_dev)
 #define DEV_ATTRIB(dev)		(&(dev)->se_sub_dev->se_dev_attrib)
 #define DEV_T10_WWN(dev)	(&(dev)->se_sub_dev->t10_wwn)
 
@@ -832,7 +852,14 @@ struct se_hba {
 	struct se_subsystem_api *transport;
 }  ____cacheline_aligned;
 
-#define SE_HBA(d)		((struct se_hba *)(d)->se_hba)
+#define SE_HBA(dev)		((dev)->se_hba)
+
+struct se_port_stat_grps {
+	struct config_group stat_group;
+	struct config_group scsi_port_group;
+	struct config_group scsi_tgt_port_group;
+	struct config_group scsi_transport_group;
+};
 
 struct se_lun {
 	/* See transport_lun_status_table */
@@ -848,11 +875,13 @@ struct se_lun {
 	struct list_head	lun_cmd_list;
 	struct list_head	lun_acl_list;
 	struct se_device	*lun_se_dev;
+	struct se_port		*lun_sep;
 	struct config_group	lun_group;
-	struct se_port	*lun_sep;
+	struct se_port_stat_grps port_stat_grps;
 } ____cacheline_aligned;
 
-#define SE_LUN(c)		((struct se_lun *)(c)->se_lun)
+#define SE_LUN(cmd)		((cmd)->se_lun)
+#define PORT_STAT_GRP(lun)	(&(lun)->port_stat_grps)
 
 struct scsi_port_stats {
        u64     cmd_pdus;
@@ -905,7 +934,7 @@ struct se_portal_group {
 	struct list_head	acl_node_list;
 	struct se_lun		*tpg_lun_list;
 	struct se_lun		tpg_virt_lun0;
-	/* List of TCM sessions assoicated wth this TPG */
+	/* List of TCM sessions associated wth this TPG */
 	struct list_head	tpg_sess_list;
 	/* Pointer to $FABRIC_MOD dependent code */
 	struct target_core_fabric_ops *se_tpg_tfo;
@@ -919,11 +948,13 @@ struct se_portal_group {
 	struct config_group	tpg_param_group;
 } ____cacheline_aligned;
 
-#define TPG_TFO(se_tpg)	((struct target_core_fabric_ops *)(se_tpg)->se_tpg_tfo)
+#define TPG_TFO(se_tpg)	((se_tpg)->se_tpg_tfo)
 
 struct se_wwn {
 	struct target_fabric_configfs *wwn_tf;
 	struct config_group	wwn_group;
+	struct config_group	*wwn_default_groups[2];
+	struct config_group	fabric_stat_group;
 } ____cacheline_aligned;
 
 struct se_global {
diff --git a/include/target/target_core_configfs.h b/include/target/target_core_configfs.h
index 40e6e740527c..612509592ffd 100644
--- a/include/target/target_core_configfs.h
+++ b/include/target/target_core_configfs.h
@@ -14,10 +14,12 @@ extern void target_fabric_configfs_deregister(struct target_fabric_configfs *);
 struct target_fabric_configfs_template {
 	struct config_item_type tfc_discovery_cit;
 	struct config_item_type	tfc_wwn_cit;
+	struct config_item_type tfc_wwn_fabric_stats_cit;
 	struct config_item_type tfc_tpg_cit;
 	struct config_item_type tfc_tpg_base_cit;
 	struct config_item_type tfc_tpg_lun_cit;
 	struct config_item_type tfc_tpg_port_cit;
+	struct config_item_type tfc_tpg_port_stat_cit;
 	struct config_item_type tfc_tpg_np_cit;
 	struct config_item_type tfc_tpg_np_base_cit;
 	struct config_item_type tfc_tpg_attrib_cit;
@@ -27,7 +29,9 @@ struct target_fabric_configfs_template {
 	struct config_item_type tfc_tpg_nacl_attrib_cit;
 	struct config_item_type tfc_tpg_nacl_auth_cit;
 	struct config_item_type tfc_tpg_nacl_param_cit;
+	struct config_item_type tfc_tpg_nacl_stat_cit;
 	struct config_item_type tfc_tpg_mappedlun_cit;
+	struct config_item_type tfc_tpg_mappedlun_stat_cit;
 };
 
 struct target_fabric_configfs {
diff --git a/include/target/target_core_fabric_ops.h b/include/target/target_core_fabric_ops.h
index f3ac12b019c2..dc78f77f9450 100644
--- a/include/target/target_core_fabric_ops.h
+++ b/include/target/target_core_fabric_ops.h
@@ -8,7 +8,7 @@ struct target_core_fabric_ops {
 	 * for scatterlist chaining using transport_do_task_sg_link(),
 	 * disabled by default
 	 */
-	int task_sg_chaining:1;
+	bool task_sg_chaining;
 	char *(*get_fabric_name)(void);
 	u8 (*get_fabric_proto_ident)(struct se_portal_group *);
 	char *(*tpg_get_wwn)(struct se_portal_group *);
@@ -35,7 +35,7 @@ struct target_core_fabric_ops {
 	/*
 	 * Optional function pointer for TCM to perform command map
 	 * from TCM processing thread context, for those struct se_cmd
-	 * initally allocated in interrupt context.
+	 * initially allocated in interrupt context.
 	 */
 	int (*new_cmd_map)(struct se_cmd *);
 	/*
diff --git a/include/target/target_core_tmr.h b/include/target/target_core_tmr.h
index 6c8248bc2c66..bd5596807478 100644
--- a/include/target/target_core_tmr.h
+++ b/include/target/target_core_tmr.h
@@ -1,37 +1,29 @@
 #ifndef TARGET_CORE_TMR_H
 #define TARGET_CORE_TMR_H
 
-/* task management function values */
-#ifdef ABORT_TASK
-#undef ABORT_TASK
-#endif /* ABORT_TASK */
-#define ABORT_TASK				1
-#ifdef ABORT_TASK_SET
-#undef ABORT_TASK_SET
-#endif /* ABORT_TASK_SET */
-#define ABORT_TASK_SET				2
-#ifdef CLEAR_ACA
-#undef CLEAR_ACA
-#endif /* CLEAR_ACA */
-#define CLEAR_ACA				3
-#ifdef CLEAR_TASK_SET
-#undef CLEAR_TASK_SET
-#endif /* CLEAR_TASK_SET */
-#define CLEAR_TASK_SET				4
-#define LUN_RESET				5
-#define TARGET_WARM_RESET			6
-#define TARGET_COLD_RESET			7
-#define TASK_REASSIGN				8
+/* fabric independent task management function values */
+enum tcm_tmreq_table {
+	TMR_ABORT_TASK		= 1,
+	TMR_ABORT_TASK_SET	= 2,
+	TMR_CLEAR_ACA		= 3,
+	TMR_CLEAR_TASK_SET	= 4,
+	TMR_LUN_RESET		= 5,
+	TMR_TARGET_WARM_RESET	= 6,
+	TMR_TARGET_COLD_RESET	= 7,
+	TMR_FABRIC_TMR		= 255,
+};
 
-/* task management response values */
-#define TMR_FUNCTION_COMPLETE			0
-#define TMR_TASK_DOES_NOT_EXIST			1
-#define TMR_LUN_DOES_NOT_EXIST			2
-#define TMR_TASK_STILL_ALLEGIANT		3
-#define TMR_TASK_FAILOVER_NOT_SUPPORTED		4
-#define TMR_TASK_MGMT_FUNCTION_NOT_SUPPORTED	5
-#define TMR_FUNCTION_AUTHORIZATION_FAILED	6
-#define TMR_FUNCTION_REJECTED			255
+/* fabric independent task management response values */
+enum tcm_tmrsp_table {
+	TMR_FUNCTION_COMPLETE		= 0,
+	TMR_TASK_DOES_NOT_EXIST		= 1,
+	TMR_LUN_DOES_NOT_EXIST		= 2,
+	TMR_TASK_STILL_ALLEGIANT	= 3,
+	TMR_TASK_FAILOVER_NOT_SUPPORTED	= 4,
+	TMR_TASK_MGMT_FUNCTION_NOT_SUPPORTED	= 5,
+	TMR_FUNCTION_AUTHORIZATION_FAILED = 6,
+	TMR_FUNCTION_REJECTED		= 255,
+};
 
 extern struct kmem_cache *se_tmr_req_cache;
 
diff --git a/include/target/target_core_transport.h b/include/target/target_core_transport.h
index 2e8ec51f0615..59aa464f6ee2 100644
--- a/include/target/target_core_transport.h
+++ b/include/target/target_core_transport.h
@@ -109,6 +109,8 @@
 struct se_mem;
 struct se_subsystem_api;
 
+extern struct kmem_cache *se_mem_cache;
+
 extern int init_se_global(void);
 extern void release_se_global(void);
 extern void init_scsi_index_table(void);
@@ -190,6 +192,8 @@ extern void transport_generic_process_write(struct se_cmd *);
 extern int transport_generic_do_tmr(struct se_cmd *);
 /* From target_core_alua.c */
 extern int core_alua_check_nonop_delay(struct se_cmd *);
+/* From target_core_cdb.c */
+extern int transport_emulate_control_cdb(struct se_task *);
 
 /*
  * Each se_transport_task_t can have N number of possible struct se_task's
diff --git a/include/trace/events/btrfs.h b/include/trace/events/btrfs.h
new file mode 100644
index 000000000000..f445cff66ab7
--- /dev/null
+++ b/include/trace/events/btrfs.h
@@ -0,0 +1,667 @@
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM btrfs
+
+#if !defined(_TRACE_BTRFS_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_BTRFS_H
+
+#include <linux/writeback.h>
+#include <linux/tracepoint.h>
+
+struct btrfs_root;
+struct btrfs_fs_info;
+struct btrfs_inode;
+struct extent_map;
+struct btrfs_ordered_extent;
+struct btrfs_delayed_ref_node;
+struct btrfs_delayed_tree_ref;
+struct btrfs_delayed_data_ref;
+struct btrfs_delayed_ref_head;
+struct map_lookup;
+struct extent_buffer;
+
+#define show_ref_type(type)						\
+	__print_symbolic(type,						\
+		{ BTRFS_TREE_BLOCK_REF_KEY, 	"TREE_BLOCK_REF" },	\
+		{ BTRFS_EXTENT_DATA_REF_KEY, 	"EXTENT_DATA_REF" },	\
+		{ BTRFS_EXTENT_REF_V0_KEY, 	"EXTENT_REF_V0" },	\
+		{ BTRFS_SHARED_BLOCK_REF_KEY, 	"SHARED_BLOCK_REF" },	\
+		{ BTRFS_SHARED_DATA_REF_KEY, 	"SHARED_DATA_REF" })
+
+#define __show_root_type(obj)						\
+	__print_symbolic(obj,						\
+		{ BTRFS_ROOT_TREE_OBJECTID, 	"ROOT_TREE"	},	\
+		{ BTRFS_EXTENT_TREE_OBJECTID, 	"EXTENT_TREE"	},	\
+		{ BTRFS_CHUNK_TREE_OBJECTID, 	"CHUNK_TREE"	},	\
+		{ BTRFS_DEV_TREE_OBJECTID, 	"DEV_TREE"	},	\
+		{ BTRFS_FS_TREE_OBJECTID, 	"FS_TREE"	},	\
+		{ BTRFS_ROOT_TREE_DIR_OBJECTID, "ROOT_TREE_DIR"	},	\
+		{ BTRFS_CSUM_TREE_OBJECTID, 	"CSUM_TREE"	},	\
+		{ BTRFS_TREE_LOG_OBJECTID,	"TREE_LOG"	},	\
+		{ BTRFS_TREE_RELOC_OBJECTID,	"TREE_RELOC"	},	\
+		{ BTRFS_DATA_RELOC_TREE_OBJECTID, "DATA_RELOC_TREE" })
+
+#define show_root_type(obj)						\
+	obj, ((obj >= BTRFS_DATA_RELOC_TREE_OBJECTID) ||		\
+	      (obj <= BTRFS_CSUM_TREE_OBJECTID )) ? __show_root_type(obj) : "-"
+
+TRACE_EVENT(btrfs_transaction_commit,
+
+	TP_PROTO(struct btrfs_root *root),
+
+	TP_ARGS(root),
+
+	TP_STRUCT__entry(
+		__field(	u64,  generation		)
+		__field(	u64,  root_objectid		)
+	),
+
+	TP_fast_assign(
+		__entry->generation	= root->fs_info->generation;
+		__entry->root_objectid	= root->root_key.objectid;
+	),
+
+	TP_printk("root = %llu(%s), gen = %llu",
+		  show_root_type(__entry->root_objectid),
+		  (unsigned long long)__entry->generation)
+);
+
+DECLARE_EVENT_CLASS(btrfs__inode,
+
+	TP_PROTO(struct inode *inode),
+
+	TP_ARGS(inode),
+
+	TP_STRUCT__entry(
+		__field(	ino_t,  ino			)
+		__field(	blkcnt_t,  blocks		)
+		__field(	u64,  disk_i_size		)
+		__field(	u64,  generation		)
+		__field(	u64,  last_trans		)
+		__field(	u64,  logged_trans		)
+		__field(	u64,  root_objectid		)
+	),
+
+	TP_fast_assign(
+		__entry->ino	= inode->i_ino;
+		__entry->blocks	= inode->i_blocks;
+		__entry->disk_i_size  = BTRFS_I(inode)->disk_i_size;
+		__entry->generation = BTRFS_I(inode)->generation;
+		__entry->last_trans = BTRFS_I(inode)->last_trans;
+		__entry->logged_trans = BTRFS_I(inode)->logged_trans;
+		__entry->root_objectid =
+				BTRFS_I(inode)->root->root_key.objectid;
+	),
+
+	TP_printk("root = %llu(%s), gen = %llu, ino = %lu, blocks = %llu, "
+		  "disk_i_size = %llu, last_trans = %llu, logged_trans = %llu",
+		  show_root_type(__entry->root_objectid),
+		  (unsigned long long)__entry->generation,
+		  (unsigned long)__entry->ino,
+		  (unsigned long long)__entry->blocks,
+		  (unsigned long long)__entry->disk_i_size,
+		  (unsigned long long)__entry->last_trans,
+		  (unsigned long long)__entry->logged_trans)
+);
+
+DEFINE_EVENT(btrfs__inode, btrfs_inode_new,
+
+	TP_PROTO(struct inode *inode),
+
+	TP_ARGS(inode)
+);
+
+DEFINE_EVENT(btrfs__inode, btrfs_inode_request,
+
+	TP_PROTO(struct inode *inode),
+
+	TP_ARGS(inode)
+);
+
+DEFINE_EVENT(btrfs__inode, btrfs_inode_evict,
+
+	TP_PROTO(struct inode *inode),
+
+	TP_ARGS(inode)
+);
+
+#define __show_map_type(type)						\
+	__print_symbolic(type,						\
+		{ EXTENT_MAP_LAST_BYTE, "LAST_BYTE" 	},		\
+		{ EXTENT_MAP_HOLE, 	"HOLE" 		},		\
+		{ EXTENT_MAP_INLINE, 	"INLINE" 	},		\
+		{ EXTENT_MAP_DELALLOC,	"DELALLOC" 	})
+
+#define show_map_type(type)			\
+	type, (type >= EXTENT_MAP_LAST_BYTE) ? "-" :  __show_map_type(type)
+
+#define show_map_flags(flag)						\
+	__print_flags(flag, "|",					\
+		{ EXTENT_FLAG_PINNED, 		"PINNED" 	},	\
+		{ EXTENT_FLAG_COMPRESSED, 	"COMPRESSED" 	},	\
+		{ EXTENT_FLAG_VACANCY, 		"VACANCY" 	},	\
+		{ EXTENT_FLAG_PREALLOC, 	"PREALLOC" 	})
+
+TRACE_EVENT(btrfs_get_extent,
+
+	TP_PROTO(struct btrfs_root *root, struct extent_map *map),
+
+	TP_ARGS(root, map),
+
+	TP_STRUCT__entry(
+		__field(	u64,  root_objectid	)
+		__field(	u64,  start		)
+		__field(	u64,  len		)
+		__field(	u64,  orig_start	)
+		__field(	u64,  block_start	)
+		__field(	u64,  block_len		)
+		__field(	unsigned long,  flags	)
+		__field(	int,  refs		)
+		__field(	unsigned int,  compress_type	)
+	),
+
+	TP_fast_assign(
+		__entry->root_objectid	= root->root_key.objectid;
+		__entry->start 		= map->start;
+		__entry->len		= map->len;
+		__entry->orig_start	= map->orig_start;
+		__entry->block_start	= map->block_start;
+		__entry->block_len	= map->block_len;
+		__entry->flags		= map->flags;
+		__entry->refs		= atomic_read(&map->refs);
+		__entry->compress_type	= map->compress_type;
+	),
+
+	TP_printk("root = %llu(%s), start = %llu, len = %llu, "
+		  "orig_start = %llu, block_start = %llu(%s), "
+		  "block_len = %llu, flags = %s, refs = %u, "
+		  "compress_type = %u",
+		  show_root_type(__entry->root_objectid),
+		  (unsigned long long)__entry->start,
+		  (unsigned long long)__entry->len,
+		  (unsigned long long)__entry->orig_start,
+		  show_map_type(__entry->block_start),
+		  (unsigned long long)__entry->block_len,
+		  show_map_flags(__entry->flags),
+		  __entry->refs, __entry->compress_type)
+);
+
+#define show_ordered_flags(flags)					\
+	__print_symbolic(flags,					\
+		{ BTRFS_ORDERED_IO_DONE, 	"IO_DONE" 	},	\
+		{ BTRFS_ORDERED_COMPLETE, 	"COMPLETE" 	},	\
+		{ BTRFS_ORDERED_NOCOW, 		"NOCOW" 	},	\
+		{ BTRFS_ORDERED_COMPRESSED, 	"COMPRESSED" 	},	\
+		{ BTRFS_ORDERED_PREALLOC, 	"PREALLOC" 	},	\
+		{ BTRFS_ORDERED_DIRECT, 	"DIRECT" 	})
+
+DECLARE_EVENT_CLASS(btrfs__ordered_extent,
+
+	TP_PROTO(struct inode *inode, struct btrfs_ordered_extent *ordered),
+
+	TP_ARGS(inode, ordered),
+
+	TP_STRUCT__entry(
+		__field(	ino_t,  ino		)
+		__field(	u64,  file_offset	)
+		__field(	u64,  start		)
+		__field(	u64,  len		)
+		__field(	u64,  disk_len		)
+		__field(	u64,  bytes_left	)
+		__field(	unsigned long,  flags	)
+		__field(	int,  compress_type	)
+		__field(	int,  refs		)
+		__field(	u64,  root_objectid	)
+	),
+
+	TP_fast_assign(
+		__entry->ino 		= inode->i_ino;
+		__entry->file_offset	= ordered->file_offset;
+		__entry->start		= ordered->start;
+		__entry->len		= ordered->len;
+		__entry->disk_len	= ordered->disk_len;
+		__entry->bytes_left	= ordered->bytes_left;
+		__entry->flags		= ordered->flags;
+		__entry->compress_type	= ordered->compress_type;
+		__entry->refs		= atomic_read(&ordered->refs);
+		__entry->root_objectid	=
+				BTRFS_I(inode)->root->root_key.objectid;
+	),
+
+	TP_printk("root = %llu(%s), ino = %llu, file_offset = %llu, "
+		  "start = %llu, len = %llu, disk_len = %llu, "
+		  "bytes_left = %llu, flags = %s, compress_type = %d, "
+		  "refs = %d",
+		  show_root_type(__entry->root_objectid),
+		  (unsigned long long)__entry->ino,
+		  (unsigned long long)__entry->file_offset,
+		  (unsigned long long)__entry->start,
+		  (unsigned long long)__entry->len,
+		  (unsigned long long)__entry->disk_len,
+		  (unsigned long long)__entry->bytes_left,
+		  show_ordered_flags(__entry->flags),
+		  __entry->compress_type, __entry->refs)
+);
+
+DEFINE_EVENT(btrfs__ordered_extent, btrfs_ordered_extent_add,
+
+	TP_PROTO(struct inode *inode, struct btrfs_ordered_extent *ordered),
+
+	TP_ARGS(inode, ordered)
+);
+
+DEFINE_EVENT(btrfs__ordered_extent, btrfs_ordered_extent_remove,
+
+	TP_PROTO(struct inode *inode, struct btrfs_ordered_extent *ordered),
+
+	TP_ARGS(inode, ordered)
+);
+
+DEFINE_EVENT(btrfs__ordered_extent, btrfs_ordered_extent_start,
+
+	TP_PROTO(struct inode *inode, struct btrfs_ordered_extent *ordered),
+
+	TP_ARGS(inode, ordered)
+);
+
+DEFINE_EVENT(btrfs__ordered_extent, btrfs_ordered_extent_put,
+
+	TP_PROTO(struct inode *inode, struct btrfs_ordered_extent *ordered),
+
+	TP_ARGS(inode, ordered)
+);
+
+DECLARE_EVENT_CLASS(btrfs__writepage,
+
+	TP_PROTO(struct page *page, struct inode *inode,
+		 struct writeback_control *wbc),
+
+	TP_ARGS(page, inode, wbc),
+
+	TP_STRUCT__entry(
+		__field(	ino_t,  ino			)
+		__field(	pgoff_t,  index			)
+		__field(	long,   nr_to_write		)
+		__field(	long,   pages_skipped		)
+		__field(	loff_t, range_start		)
+		__field(	loff_t, range_end		)
+		__field(	char,   nonblocking		)
+		__field(	char,   for_kupdate		)
+		__field(	char,   for_reclaim		)
+		__field(	char,   range_cyclic		)
+		__field(	pgoff_t,  writeback_index	)
+		__field(	u64,    root_objectid		)
+	),
+
+	TP_fast_assign(
+		__entry->ino		= inode->i_ino;
+		__entry->index		= page->index;
+		__entry->nr_to_write	= wbc->nr_to_write;
+		__entry->pages_skipped	= wbc->pages_skipped;
+		__entry->range_start	= wbc->range_start;
+		__entry->range_end	= wbc->range_end;
+		__entry->nonblocking	= wbc->nonblocking;
+		__entry->for_kupdate	= wbc->for_kupdate;
+		__entry->for_reclaim	= wbc->for_reclaim;
+		__entry->range_cyclic	= wbc->range_cyclic;
+		__entry->writeback_index = inode->i_mapping->writeback_index;
+		__entry->root_objectid	=
+				 BTRFS_I(inode)->root->root_key.objectid;
+	),
+
+	TP_printk("root = %llu(%s), ino = %lu, page_index = %lu, "
+		  "nr_to_write = %ld, pages_skipped = %ld, range_start = %llu, "
+		  "range_end = %llu, nonblocking = %d, for_kupdate = %d, "
+		  "for_reclaim = %d, range_cyclic = %d, writeback_index = %lu",
+		  show_root_type(__entry->root_objectid),
+		  (unsigned long)__entry->ino, __entry->index,
+		  __entry->nr_to_write, __entry->pages_skipped,
+		  __entry->range_start, __entry->range_end,
+		  __entry->nonblocking, __entry->for_kupdate,
+		  __entry->for_reclaim, __entry->range_cyclic,
+		  (unsigned long)__entry->writeback_index)
+);
+
+DEFINE_EVENT(btrfs__writepage, __extent_writepage,
+
+	TP_PROTO(struct page *page, struct inode *inode,
+		 struct writeback_control *wbc),
+
+	TP_ARGS(page, inode, wbc)
+);
+
+TRACE_EVENT(btrfs_writepage_end_io_hook,
+
+	TP_PROTO(struct page *page, u64 start, u64 end, int uptodate),
+
+	TP_ARGS(page, start, end, uptodate),
+
+	TP_STRUCT__entry(
+		__field(	ino_t,	 ino		)
+		__field(	pgoff_t, index		)
+		__field(	u64,	 start		)
+		__field(	u64,	 end		)
+		__field(	int,	 uptodate	)
+		__field(	u64,    root_objectid	)
+	),
+
+	TP_fast_assign(
+		__entry->ino	= page->mapping->host->i_ino;
+		__entry->index	= page->index;
+		__entry->start	= start;
+		__entry->end	= end;
+		__entry->uptodate = uptodate;
+		__entry->root_objectid	=
+			 BTRFS_I(page->mapping->host)->root->root_key.objectid;
+	),
+
+	TP_printk("root = %llu(%s), ino = %lu, page_index = %lu, start = %llu, "
+		  "end = %llu, uptodate = %d",
+		  show_root_type(__entry->root_objectid),
+		  (unsigned long)__entry->ino, (unsigned long)__entry->index,
+		  (unsigned long long)__entry->start,
+		  (unsigned long long)__entry->end, __entry->uptodate)
+);
+
+TRACE_EVENT(btrfs_sync_file,
+
+	TP_PROTO(struct file *file, int datasync),
+
+	TP_ARGS(file, datasync),
+
+	TP_STRUCT__entry(
+		__field(	ino_t,  ino		)
+		__field(	ino_t,  parent		)
+		__field(	int,    datasync	)
+		__field(	u64,    root_objectid	)
+	),
+
+	TP_fast_assign(
+		struct dentry *dentry = file->f_path.dentry;
+		struct inode *inode = dentry->d_inode;
+
+		__entry->ino		= inode->i_ino;
+		__entry->parent		= dentry->d_parent->d_inode->i_ino;
+		__entry->datasync	= datasync;
+		__entry->root_objectid	=
+				 BTRFS_I(inode)->root->root_key.objectid;
+	),
+
+	TP_printk("root = %llu(%s), ino = %ld, parent = %ld, datasync = %d",
+		  show_root_type(__entry->root_objectid),
+		  (unsigned long)__entry->ino, (unsigned long)__entry->parent,
+		  __entry->datasync)
+);
+
+TRACE_EVENT(btrfs_sync_fs,
+
+	TP_PROTO(int wait),
+
+	TP_ARGS(wait),
+
+	TP_STRUCT__entry(
+		__field(	int,  wait		)
+	),
+
+	TP_fast_assign(
+		__entry->wait	= wait;
+	),
+
+	TP_printk("wait = %d", __entry->wait)
+);
+
+#define show_ref_action(action)						\
+	__print_symbolic(action,					\
+		{ BTRFS_ADD_DELAYED_REF,    "ADD_DELAYED_REF" },	\
+		{ BTRFS_DROP_DELAYED_REF,   "DROP_DELAYED_REF" },	\
+		{ BTRFS_ADD_DELAYED_EXTENT, "ADD_DELAYED_EXTENT" }, 	\
+		{ BTRFS_UPDATE_DELAYED_HEAD, "UPDATE_DELAYED_HEAD" })
+			
+
+TRACE_EVENT(btrfs_delayed_tree_ref,
+
+	TP_PROTO(struct btrfs_delayed_ref_node *ref,
+		 struct btrfs_delayed_tree_ref *full_ref,
+		 int action),
+
+	TP_ARGS(ref, full_ref, action),
+
+	TP_STRUCT__entry(
+		__field(	u64,  bytenr		)
+		__field(	u64,  num_bytes		)
+		__field(	int,  action		) 
+		__field(	u64,  parent		)
+		__field(	u64,  ref_root		)
+		__field(	int,  level		)
+		__field(	int,  type		)
+	),
+
+	TP_fast_assign(
+		__entry->bytenr		= ref->bytenr;
+		__entry->num_bytes	= ref->num_bytes;
+		__entry->action		= action;
+		__entry->parent		= full_ref->parent;
+		__entry->ref_root	= full_ref->root;
+		__entry->level		= full_ref->level;
+		__entry->type		= ref->type;
+	),
+
+	TP_printk("bytenr = %llu, num_bytes = %llu, action = %s, "
+		  "parent = %llu(%s), ref_root = %llu(%s), level = %d, "
+		  "type = %s",
+		  (unsigned long long)__entry->bytenr,
+		  (unsigned long long)__entry->num_bytes,
+		  show_ref_action(__entry->action),
+		  show_root_type(__entry->parent),
+		  show_root_type(__entry->ref_root),
+		  __entry->level, show_ref_type(__entry->type))
+);
+
+TRACE_EVENT(btrfs_delayed_data_ref,
+
+	TP_PROTO(struct btrfs_delayed_ref_node *ref,
+		 struct btrfs_delayed_data_ref *full_ref,
+		 int action),
+
+	TP_ARGS(ref, full_ref, action),
+
+	TP_STRUCT__entry(
+		__field(	u64,  bytenr		)
+		__field(	u64,  num_bytes		)
+		__field(	int,  action		) 
+		__field(	u64,  parent		)
+		__field(	u64,  ref_root		)
+		__field(	u64,  owner		)
+		__field(	u64,  offset		)
+		__field(	int,  type		)
+	),
+
+	TP_fast_assign(
+		__entry->bytenr		= ref->bytenr;
+		__entry->num_bytes	= ref->num_bytes;
+		__entry->action		= action;
+		__entry->parent		= full_ref->parent;
+		__entry->ref_root	= full_ref->root;
+		__entry->owner		= full_ref->objectid;
+		__entry->offset		= full_ref->offset;
+		__entry->type		= ref->type;
+	),
+
+	TP_printk("bytenr = %llu, num_bytes = %llu, action = %s, "
+		  "parent = %llu(%s), ref_root = %llu(%s), owner = %llu, "
+		  "offset = %llu, type = %s",
+		  (unsigned long long)__entry->bytenr,
+		  (unsigned long long)__entry->num_bytes,
+		  show_ref_action(__entry->action),
+		  show_root_type(__entry->parent),
+		  show_root_type(__entry->ref_root),
+		  (unsigned long long)__entry->owner,
+		  (unsigned long long)__entry->offset,
+		  show_ref_type(__entry->type))
+);
+
+TRACE_EVENT(btrfs_delayed_ref_head,
+
+	TP_PROTO(struct btrfs_delayed_ref_node *ref,
+		 struct btrfs_delayed_ref_head *head_ref,
+		 int action),
+
+	TP_ARGS(ref, head_ref, action),
+
+	TP_STRUCT__entry(
+		__field(	u64,  bytenr		)
+		__field(	u64,  num_bytes		)
+		__field(	int,  action		) 
+		__field(	int,  is_data		)
+	),
+
+	TP_fast_assign(
+		__entry->bytenr		= ref->bytenr;
+		__entry->num_bytes	= ref->num_bytes;
+		__entry->action		= action;
+		__entry->is_data	= head_ref->is_data;
+	),
+
+	TP_printk("bytenr = %llu, num_bytes = %llu, action = %s, is_data = %d",
+		  (unsigned long long)__entry->bytenr,
+		  (unsigned long long)__entry->num_bytes,
+		  show_ref_action(__entry->action),
+		  __entry->is_data)
+);
+
+#define show_chunk_type(type)					\
+	__print_flags(type, "|",				\
+		{ BTRFS_BLOCK_GROUP_DATA, 	"DATA"	},	\
+		{ BTRFS_BLOCK_GROUP_SYSTEM, 	"SYSTEM"},	\
+		{ BTRFS_BLOCK_GROUP_METADATA, 	"METADATA"},	\
+		{ BTRFS_BLOCK_GROUP_RAID0, 	"RAID0" },	\
+		{ BTRFS_BLOCK_GROUP_RAID1, 	"RAID1" },	\
+		{ BTRFS_BLOCK_GROUP_DUP, 	"DUP"	},	\
+		{ BTRFS_BLOCK_GROUP_RAID10, 	"RAID10"})
+
+DECLARE_EVENT_CLASS(btrfs__chunk,
+
+	TP_PROTO(struct btrfs_root *root, struct map_lookup *map,
+		 u64 offset, u64 size),
+
+	TP_ARGS(root, map, offset, size),
+
+	TP_STRUCT__entry(
+		__field(	int,  num_stripes		)
+		__field(	u64,  type			)
+		__field(	int,  sub_stripes		)
+		__field(	u64,  offset			)
+		__field(	u64,  size			)
+		__field(	u64,  root_objectid		)
+	),
+
+	TP_fast_assign(
+		__entry->num_stripes	= map->num_stripes;
+		__entry->type		= map->type;
+		__entry->sub_stripes	= map->sub_stripes;
+		__entry->offset		= offset;
+		__entry->size		= size;
+		__entry->root_objectid	= root->root_key.objectid;
+	),
+
+	TP_printk("root = %llu(%s), offset = %llu, size = %llu, "
+		  "num_stripes = %d, sub_stripes = %d, type = %s",
+		  show_root_type(__entry->root_objectid),
+		  (unsigned long long)__entry->offset,
+		  (unsigned long long)__entry->size,
+		  __entry->num_stripes, __entry->sub_stripes,
+		  show_chunk_type(__entry->type))
+);
+
+DEFINE_EVENT(btrfs__chunk,  btrfs_chunk_alloc,
+
+	TP_PROTO(struct btrfs_root *root, struct map_lookup *map,
+		 u64 offset, u64 size),
+
+	TP_ARGS(root, map, offset, size)
+);
+
+DEFINE_EVENT(btrfs__chunk,  btrfs_chunk_free,
+
+	TP_PROTO(struct btrfs_root *root, struct map_lookup *map,
+		 u64 offset, u64 size),
+
+	TP_ARGS(root, map, offset, size)
+);
+
+TRACE_EVENT(btrfs_cow_block,
+
+	TP_PROTO(struct btrfs_root *root, struct extent_buffer *buf,
+		 struct extent_buffer *cow),
+
+	TP_ARGS(root, buf, cow),
+
+	TP_STRUCT__entry(
+		__field(	u64,  root_objectid		)
+		__field(	u64,  buf_start			)
+		__field(	int,  refs			)
+		__field(	u64,  cow_start			)
+		__field(	int,  buf_level			)
+		__field(	int,  cow_level			)
+	),
+
+	TP_fast_assign(
+		__entry->root_objectid	= root->root_key.objectid;
+		__entry->buf_start	= buf->start;
+		__entry->refs		= atomic_read(&buf->refs);
+		__entry->cow_start	= cow->start;
+		__entry->buf_level	= btrfs_header_level(buf);
+		__entry->cow_level	= btrfs_header_level(cow);
+	),
+
+	TP_printk("root = %llu(%s), refs = %d, orig_buf = %llu "
+		  "(orig_level = %d), cow_buf = %llu (cow_level = %d)",
+		  show_root_type(__entry->root_objectid),
+		  __entry->refs,
+		  (unsigned long long)__entry->buf_start,
+		  __entry->buf_level,
+		  (unsigned long long)__entry->cow_start,
+		  __entry->cow_level)
+);
+
+DECLARE_EVENT_CLASS(btrfs__reserved_extent,
+
+	TP_PROTO(struct btrfs_root *root, u64 start, u64 len),
+
+	TP_ARGS(root, start, len),
+
+	TP_STRUCT__entry(
+		__field(	u64,  root_objectid		)
+		__field(	u64,  start			)
+		__field(	u64,  len			)
+	),
+
+	TP_fast_assign(
+		__entry->root_objectid	= root->root_key.objectid;
+		__entry->start		= start;
+		__entry->len		= len;
+	),
+
+	TP_printk("root = %llu(%s), start = %llu, len = %llu",
+		  show_root_type(__entry->root_objectid),
+		  (unsigned long long)__entry->start,
+		  (unsigned long long)__entry->len)
+);
+
+DEFINE_EVENT(btrfs__reserved_extent,  btrfs_reserved_extent_alloc,
+
+	TP_PROTO(struct btrfs_root *root, u64 start, u64 len),
+
+	TP_ARGS(root, start, len)
+);
+
+DEFINE_EVENT(btrfs__reserved_extent,  btrfs_reserved_extent_free,
+
+	TP_PROTO(struct btrfs_root *root, u64 start, u64 len),
+
+	TP_ARGS(root, start, len)
+);
+
+#endif /* _TRACE_BTRFS_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>
diff --git a/include/trace/events/ext4.h b/include/trace/events/ext4.h
index e5e345fb2a5c..e09592d2f916 100644
--- a/include/trace/events/ext4.h
+++ b/include/trace/events/ext4.h
@@ -21,8 +21,7 @@ TRACE_EVENT(ext4_free_inode,
 	TP_ARGS(inode),
 
 	TP_STRUCT__entry(
-		__field(	int,   dev_major                )
-		__field(	int,   dev_minor                )
+		__field(	dev_t,	dev			)
 		__field(	ino_t,	ino			)
 		__field(	umode_t, mode			)
 		__field(	uid_t,	uid			)
@@ -31,8 +30,7 @@ TRACE_EVENT(ext4_free_inode,
 	),
 
 	TP_fast_assign(
-		__entry->dev_major = MAJOR(inode->i_sb->s_dev);
-		__entry->dev_minor = MINOR(inode->i_sb->s_dev);
+		__entry->dev	= inode->i_sb->s_dev;
 		__entry->ino	= inode->i_ino;
 		__entry->mode	= inode->i_mode;
 		__entry->uid	= inode->i_uid;
@@ -41,9 +39,9 @@ TRACE_EVENT(ext4_free_inode,
 	),
 
 	TP_printk("dev %d,%d ino %lu mode 0%o uid %u gid %u blocks %llu",
-		  __entry->dev_major, __entry->dev_minor,
-		  (unsigned long) __entry->ino, __entry->mode,
-		  __entry->uid, __entry->gid,
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
+		  (unsigned long) __entry->ino,
+		  __entry->mode, __entry->uid, __entry->gid,
 		  (unsigned long long) __entry->blocks)
 );
 
@@ -53,21 +51,19 @@ TRACE_EVENT(ext4_request_inode,
 	TP_ARGS(dir, mode),
 
 	TP_STRUCT__entry(
-		__field(	int,   dev_major                )
-		__field(	int,   dev_minor                )
+		__field(	dev_t,	dev			)
 		__field(	ino_t,	dir			)
 		__field(	umode_t, mode			)
 	),
 
 	TP_fast_assign(
-		__entry->dev_major = MAJOR(dir->i_sb->s_dev);
-		__entry->dev_minor = MINOR(dir->i_sb->s_dev);
+		__entry->dev	= dir->i_sb->s_dev;
 		__entry->dir	= dir->i_ino;
 		__entry->mode	= mode;
 	),
 
 	TP_printk("dev %d,%d dir %lu mode 0%o",
-		  __entry->dev_major, __entry->dev_minor,
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
 		  (unsigned long) __entry->dir, __entry->mode)
 );
 
@@ -77,23 +73,21 @@ TRACE_EVENT(ext4_allocate_inode,
 	TP_ARGS(inode, dir, mode),
 
 	TP_STRUCT__entry(
-		__field(	int,   dev_major                )
-		__field(	int,   dev_minor                )
+		__field(	dev_t,	dev			)
 		__field(	ino_t,	ino			)
 		__field(	ino_t,	dir			)
 		__field(	umode_t, mode			)
 	),
 
 	TP_fast_assign(
-		__entry->dev_major = MAJOR(inode->i_sb->s_dev);
-		__entry->dev_minor = MINOR(inode->i_sb->s_dev);
+		__entry->dev	= inode->i_sb->s_dev;
 		__entry->ino	= inode->i_ino;
 		__entry->dir	= dir->i_ino;
 		__entry->mode	= mode;
 	),
 
 	TP_printk("dev %d,%d ino %lu dir %lu mode 0%o",
-		  __entry->dev_major, __entry->dev_minor,
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
 		  (unsigned long) __entry->ino,
 		  (unsigned long) __entry->dir, __entry->mode)
 );
@@ -104,21 +98,19 @@ TRACE_EVENT(ext4_evict_inode,
 	TP_ARGS(inode),
 
 	TP_STRUCT__entry(
-		__field(	int,   dev_major                )
-		__field(	int,   dev_minor                )
+		__field(	dev_t,	dev			)
 		__field(	ino_t,	ino			)
 		__field(	int,	nlink			)
 	),
 
 	TP_fast_assign(
-		__entry->dev_major = MAJOR(inode->i_sb->s_dev);
-		__entry->dev_minor = MINOR(inode->i_sb->s_dev);
+		__entry->dev	= inode->i_sb->s_dev;
 		__entry->ino	= inode->i_ino;
 		__entry->nlink	= inode->i_nlink;
 	),
 
 	TP_printk("dev %d,%d ino %lu nlink %d",
-		  __entry->dev_major, __entry->dev_minor,
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
 		  (unsigned long) __entry->ino, __entry->nlink)
 );
 
@@ -128,21 +120,19 @@ TRACE_EVENT(ext4_drop_inode,
 	TP_ARGS(inode, drop),
 
 	TP_STRUCT__entry(
-		__field(	int,	dev_major		)
-		__field(	int,	dev_minor		)
+		__field(	dev_t,	dev			)
 		__field(	ino_t,	ino			)
 		__field(	int,	drop			)
 	),
 
 	TP_fast_assign(
-		__entry->dev_major = MAJOR(inode->i_sb->s_dev);
-		__entry->dev_minor = MINOR(inode->i_sb->s_dev);
+		__entry->dev	= inode->i_sb->s_dev;
 		__entry->ino	= inode->i_ino;
 		__entry->drop	= drop;
 	),
 
 	TP_printk("dev %d,%d ino %lu drop %d",
-		  __entry->dev_major, __entry->dev_minor,
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
 		  (unsigned long) __entry->ino, __entry->drop)
 );
 
@@ -152,21 +142,19 @@ TRACE_EVENT(ext4_mark_inode_dirty,
 	TP_ARGS(inode, IP),
 
 	TP_STRUCT__entry(
-		__field(	int,	dev_major		)
-		__field(	int,	dev_minor		)
+		__field(	dev_t,	dev			)
 		__field(	ino_t,	ino			)
 		__field(unsigned long,	ip			)
 	),
 
 	TP_fast_assign(
-		__entry->dev_major = MAJOR(inode->i_sb->s_dev);
-		__entry->dev_minor = MINOR(inode->i_sb->s_dev);
+		__entry->dev	= inode->i_sb->s_dev;
 		__entry->ino	= inode->i_ino;
 		__entry->ip	= IP;
 	),
 
 	TP_printk("dev %d,%d ino %lu caller %pF",
-		  __entry->dev_major, __entry->dev_minor,
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
 		  (unsigned long) __entry->ino, (void *)__entry->ip)
 );
 
@@ -176,21 +164,19 @@ TRACE_EVENT(ext4_begin_ordered_truncate,
 	TP_ARGS(inode, new_size),
 
 	TP_STRUCT__entry(
-		__field(	int,	dev_major		)
-		__field(	int,	dev_minor		)
+		__field(	dev_t,	dev			)
 		__field(	ino_t,	ino			)
 		__field(	loff_t,	new_size		)
 	),
 
 	TP_fast_assign(
-		__entry->dev_major	= MAJOR(inode->i_sb->s_dev);
-		__entry->dev_minor	= MINOR(inode->i_sb->s_dev);
+		__entry->dev		= inode->i_sb->s_dev;
 		__entry->ino		= inode->i_ino;
 		__entry->new_size	= new_size;
 	),
 
 	TP_printk("dev %d,%d ino %lu new_size %lld",
-		  __entry->dev_major, __entry->dev_minor,
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
 		  (unsigned long) __entry->ino,
 		  (long long) __entry->new_size)
 );
@@ -203,8 +189,7 @@ DECLARE_EVENT_CLASS(ext4__write_begin,
 	TP_ARGS(inode, pos, len, flags),
 
 	TP_STRUCT__entry(
-		__field(	int,   dev_major                )
-		__field(	int,   dev_minor                )
+		__field(	dev_t,	dev			)
 		__field(	ino_t,	ino			)
 		__field(	loff_t,	pos			)
 		__field(	unsigned int, len		)
@@ -212,8 +197,7 @@ DECLARE_EVENT_CLASS(ext4__write_begin,
 	),
 
 	TP_fast_assign(
-		__entry->dev_major = MAJOR(inode->i_sb->s_dev);
-		__entry->dev_minor = MINOR(inode->i_sb->s_dev);
+		__entry->dev	= inode->i_sb->s_dev;
 		__entry->ino	= inode->i_ino;
 		__entry->pos	= pos;
 		__entry->len	= len;
@@ -221,7 +205,7 @@ DECLARE_EVENT_CLASS(ext4__write_begin,
 	),
 
 	TP_printk("dev %d,%d ino %lu pos %llu len %u flags %u",
-		  __entry->dev_major, __entry->dev_minor,
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
 		  (unsigned long) __entry->ino,
 		  __entry->pos, __entry->len, __entry->flags)
 );
@@ -249,8 +233,7 @@ DECLARE_EVENT_CLASS(ext4__write_end,
 	TP_ARGS(inode, pos, len, copied),
 
 	TP_STRUCT__entry(
-		__field(	int,   dev_major                )
-		__field(	int,   dev_minor                )
+		__field(	dev_t,	dev			)
 		__field(	ino_t,	ino			)
 		__field(	loff_t,	pos			)
 		__field(	unsigned int, len		)
@@ -258,8 +241,7 @@ DECLARE_EVENT_CLASS(ext4__write_end,
 	),
 
 	TP_fast_assign(
-		__entry->dev_major = MAJOR(inode->i_sb->s_dev);
-		__entry->dev_minor = MINOR(inode->i_sb->s_dev);
+		__entry->dev	= inode->i_sb->s_dev;
 		__entry->ino	= inode->i_ino;
 		__entry->pos	= pos;
 		__entry->len	= len;
@@ -267,9 +249,9 @@ DECLARE_EVENT_CLASS(ext4__write_end,
 	),
 
 	TP_printk("dev %d,%d ino %lu pos %llu len %u copied %u",
-		  __entry->dev_major, __entry->dev_minor,
-		  (unsigned long) __entry->ino, __entry->pos,
-		  __entry->len, __entry->copied)
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
+		  (unsigned long) __entry->ino,
+		  __entry->pos, __entry->len, __entry->copied)
 );
 
 DEFINE_EVENT(ext4__write_end, ext4_ordered_write_end,
@@ -310,22 +292,20 @@ TRACE_EVENT(ext4_writepage,
 	TP_ARGS(inode, page),
 
 	TP_STRUCT__entry(
-		__field(	int,   dev_major                )
-		__field(	int,   dev_minor                )
+		__field(	dev_t,	dev			)
 		__field(	ino_t,	ino			)
 		__field(	pgoff_t, index			)
 
 	),
 
 	TP_fast_assign(
-		__entry->dev_major = MAJOR(inode->i_sb->s_dev);
-		__entry->dev_minor = MINOR(inode->i_sb->s_dev);
+		__entry->dev	= inode->i_sb->s_dev;
 		__entry->ino	= inode->i_ino;
 		__entry->index	= page->index;
 	),
 
 	TP_printk("dev %d,%d ino %lu page_index %lu",
-		  __entry->dev_major, __entry->dev_minor,
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
 		  (unsigned long) __entry->ino, __entry->index)
 );
 
@@ -335,43 +315,39 @@ TRACE_EVENT(ext4_da_writepages,
 	TP_ARGS(inode, wbc),
 
 	TP_STRUCT__entry(
-		__field(	int,   dev_major                )
-		__field(	int,   dev_minor                )
+		__field(	dev_t,	dev			)
 		__field(	ino_t,	ino			)
 		__field(	long,	nr_to_write		)
 		__field(	long,	pages_skipped		)
 		__field(	loff_t,	range_start		)
 		__field(	loff_t,	range_end		)
+		__field(	int,	sync_mode		)
 		__field(	char,	for_kupdate		)
-		__field(	char,	for_reclaim		)
 		__field(	char,	range_cyclic		)
 		__field(       pgoff_t,	writeback_index		)
 	),
 
 	TP_fast_assign(
-		__entry->dev_major	= MAJOR(inode->i_sb->s_dev);
-		__entry->dev_minor	= MINOR(inode->i_sb->s_dev);
+		__entry->dev		= inode->i_sb->s_dev;
 		__entry->ino		= inode->i_ino;
 		__entry->nr_to_write	= wbc->nr_to_write;
 		__entry->pages_skipped	= wbc->pages_skipped;
 		__entry->range_start	= wbc->range_start;
 		__entry->range_end	= wbc->range_end;
+		__entry->sync_mode	= wbc->sync_mode;
 		__entry->for_kupdate	= wbc->for_kupdate;
-		__entry->for_reclaim	= wbc->for_reclaim;
 		__entry->range_cyclic	= wbc->range_cyclic;
 		__entry->writeback_index = inode->i_mapping->writeback_index;
 	),
 
 	TP_printk("dev %d,%d ino %lu nr_to_write %ld pages_skipped %ld "
-		  "range_start %llu range_end %llu "
-		  "for_kupdate %d for_reclaim %d "
-		  "range_cyclic %d writeback_index %lu",
-		  __entry->dev_major, __entry->dev_minor,
+		  "range_start %llu range_end %llu sync_mode %d"
+		  "for_kupdate %d range_cyclic %d writeback_index %lu",
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
 		  (unsigned long) __entry->ino, __entry->nr_to_write,
 		  __entry->pages_skipped, __entry->range_start,
-		  __entry->range_end,
-		  __entry->for_kupdate, __entry->for_reclaim,
-		  __entry->range_cyclic,
+		  __entry->range_end, __entry->sync_mode,
+		  __entry->for_kupdate, __entry->range_cyclic,
 		  (unsigned long) __entry->writeback_index)
 );
 
@@ -381,8 +357,7 @@ TRACE_EVENT(ext4_da_write_pages,
 	TP_ARGS(inode, mpd),
 
 	TP_STRUCT__entry(
-		__field(	int,   dev_major                )
-		__field(	int,   dev_minor                )
+		__field(	dev_t,	dev			)
 		__field(	ino_t,	ino			)
 		__field(	__u64,	b_blocknr		)
 		__field(	__u32,	b_size			)
@@ -390,11 +365,11 @@ TRACE_EVENT(ext4_da_write_pages,
 		__field(	unsigned long,	first_page	)
 		__field(	int,	io_done			)
 		__field(	int,	pages_written		)
+		__field(	int,	sync_mode		)
 	),
 
 	TP_fast_assign(
-		__entry->dev_major	= MAJOR(inode->i_sb->s_dev);
-		__entry->dev_minor	= MINOR(inode->i_sb->s_dev);
+		__entry->dev		= inode->i_sb->s_dev;
 		__entry->ino		= inode->i_ino;
 		__entry->b_blocknr	= mpd->b_blocknr;
 		__entry->b_size		= mpd->b_size;
@@ -402,14 +377,18 @@ TRACE_EVENT(ext4_da_write_pages,
 		__entry->first_page	= mpd->first_page;
 		__entry->io_done	= mpd->io_done;
 		__entry->pages_written	= mpd->pages_written;
+		__entry->sync_mode	= mpd->wbc->sync_mode;
 	),
 
-	TP_printk("dev %d,%d ino %lu b_blocknr %llu b_size %u b_state 0x%04x first_page %lu io_done %d pages_written %d",
-		  __entry->dev_major, __entry->dev_minor,
+	TP_printk("dev %d,%d ino %lu b_blocknr %llu b_size %u b_state 0x%04x "
+		  "first_page %lu io_done %d pages_written %d sync_mode %d",
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
 		  (unsigned long) __entry->ino,
 		  __entry->b_blocknr, __entry->b_size,
 		  __entry->b_state, __entry->first_page,
-		  __entry->io_done, __entry->pages_written)
+		  __entry->io_done, __entry->pages_written,
+		  __entry->sync_mode
+                  )
 );
 
 TRACE_EVENT(ext4_da_writepages_result,
@@ -419,35 +398,100 @@ TRACE_EVENT(ext4_da_writepages_result,
 	TP_ARGS(inode, wbc, ret, pages_written),
 
 	TP_STRUCT__entry(
-		__field(	int,   dev_major                )
-		__field(	int,   dev_minor                )
+		__field(	dev_t,	dev			)
 		__field(	ino_t,	ino			)
 		__field(	int,	ret			)
 		__field(	int,	pages_written		)
 		__field(	long,	pages_skipped		)
+		__field(	int,	sync_mode		)
 		__field(	char,	more_io			)	
 		__field(       pgoff_t,	writeback_index		)
 	),
 
 	TP_fast_assign(
-		__entry->dev_major	= MAJOR(inode->i_sb->s_dev);
-		__entry->dev_minor	= MINOR(inode->i_sb->s_dev);
+		__entry->dev		= inode->i_sb->s_dev;
 		__entry->ino		= inode->i_ino;
 		__entry->ret		= ret;
 		__entry->pages_written	= pages_written;
 		__entry->pages_skipped	= wbc->pages_skipped;
+		__entry->sync_mode	= wbc->sync_mode;
 		__entry->more_io	= wbc->more_io;
 		__entry->writeback_index = inode->i_mapping->writeback_index;
 	),
 
-	TP_printk("dev %d,%d ino %lu ret %d pages_written %d pages_skipped %ld more_io %d writeback_index %lu",
-		  __entry->dev_major, __entry->dev_minor,
+	TP_printk("dev %d,%d ino %lu ret %d pages_written %d pages_skipped %ld "
+		  " more_io %d sync_mode %d writeback_index %lu",
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
 		  (unsigned long) __entry->ino, __entry->ret,
 		  __entry->pages_written, __entry->pages_skipped,
-		  __entry->more_io,
+		  __entry->more_io, __entry->sync_mode,
 		  (unsigned long) __entry->writeback_index)
 );
 
+DECLARE_EVENT_CLASS(ext4__page_op,
+	TP_PROTO(struct page *page),
+
+	TP_ARGS(page),
+
+	TP_STRUCT__entry(
+		__field(	pgoff_t, index			)
+		__field(	ino_t,	ino			)
+		__field(	dev_t,	dev			)
+
+	),
+
+	TP_fast_assign(
+		__entry->index	= page->index;
+		__entry->ino	= page->mapping->host->i_ino;
+		__entry->dev	= page->mapping->host->i_sb->s_dev;
+	),
+
+	TP_printk("dev %d,%d ino %lu page_index %lu",
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
+		  (unsigned long) __entry->ino,
+		  __entry->index)
+);
+
+DEFINE_EVENT(ext4__page_op, ext4_readpage,
+
+	TP_PROTO(struct page *page),
+
+	TP_ARGS(page)
+);
+
+DEFINE_EVENT(ext4__page_op, ext4_releasepage,
+
+	TP_PROTO(struct page *page),
+
+	TP_ARGS(page)
+);
+
+TRACE_EVENT(ext4_invalidatepage,
+	TP_PROTO(struct page *page, unsigned long offset),
+
+	TP_ARGS(page, offset),
+
+	TP_STRUCT__entry(
+		__field(	pgoff_t, index			)
+		__field(	unsigned long, offset		)
+		__field(	ino_t,	ino			)
+		__field(	dev_t,	dev			)
+
+	),
+
+	TP_fast_assign(
+		__entry->index	= page->index;
+		__entry->offset	= offset;
+		__entry->ino	= page->mapping->host->i_ino;
+		__entry->dev	= page->mapping->host->i_sb->s_dev;
+	),
+
+	TP_printk("dev %d,%d ino %lu page_index %lu offset %lu",
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
+		  (unsigned long) __entry->ino,
+		  __entry->index, __entry->offset)
+);
+
 TRACE_EVENT(ext4_discard_blocks,
 	TP_PROTO(struct super_block *sb, unsigned long long blk,
 			unsigned long long count),
@@ -455,22 +499,20 @@ TRACE_EVENT(ext4_discard_blocks,
 	TP_ARGS(sb, blk, count),
 
 	TP_STRUCT__entry(
-		__field(	int,   dev_major                )
-		__field(	int,   dev_minor                )
+		__field(	dev_t,	dev			)
 		__field(	__u64,	blk			)
 		__field(	__u64,	count			)
 
 	),
 
 	TP_fast_assign(
-		__entry->dev_major = MAJOR(sb->s_dev);
-		__entry->dev_minor = MINOR(sb->s_dev);
+		__entry->dev	= sb->s_dev;
 		__entry->blk	= blk;
 		__entry->count	= count;
 	),
 
 	TP_printk("dev %d,%d blk %llu count %llu",
-		  __entry->dev_major, __entry->dev_minor,
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
 		  __entry->blk, __entry->count)
 );
 
@@ -481,8 +523,7 @@ DECLARE_EVENT_CLASS(ext4__mb_new_pa,
 	TP_ARGS(ac, pa),
 
 	TP_STRUCT__entry(
-		__field(	int,   dev_major                )
-		__field(	int,   dev_minor                )
+		__field(	dev_t,	dev			)
 		__field(	ino_t,	ino			)
 		__field(	__u64,	pa_pstart		)
 		__field(	__u32,	pa_len			)
@@ -491,8 +532,7 @@ DECLARE_EVENT_CLASS(ext4__mb_new_pa,
 	),
 
 	TP_fast_assign(
-		__entry->dev_major	= MAJOR(ac->ac_sb->s_dev);
-		__entry->dev_minor	= MINOR(ac->ac_sb->s_dev);
+		__entry->dev		= ac->ac_sb->s_dev;
 		__entry->ino		= ac->ac_inode->i_ino;
 		__entry->pa_pstart	= pa->pa_pstart;
 		__entry->pa_len		= pa->pa_len;
@@ -500,9 +540,9 @@ DECLARE_EVENT_CLASS(ext4__mb_new_pa,
 	),
 
 	TP_printk("dev %d,%d ino %lu pstart %llu len %u lstart %llu",
-		  __entry->dev_major, __entry->dev_minor,
-		  (unsigned long) __entry->ino, __entry->pa_pstart,
-		  __entry->pa_len, __entry->pa_lstart)
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
+		  (unsigned long) __entry->ino,
+		  __entry->pa_pstart, __entry->pa_len, __entry->pa_lstart)
 );
 
 DEFINE_EVENT(ext4__mb_new_pa, ext4_mb_new_inode_pa,
@@ -530,8 +570,7 @@ TRACE_EVENT(ext4_mb_release_inode_pa,
 	TP_ARGS(sb, inode, pa, block, count),
 
 	TP_STRUCT__entry(
-		__field(	int,   dev_major                )
-		__field(	int,   dev_minor                )
+		__field(	dev_t,	dev			)
 		__field(	ino_t,	ino			)
 		__field(	__u64,	block			)
 		__field(	__u32,	count			)
@@ -539,16 +578,16 @@ TRACE_EVENT(ext4_mb_release_inode_pa,
 	),
 
 	TP_fast_assign(
-		__entry->dev_major	= MAJOR(sb->s_dev);
-		__entry->dev_minor	= MINOR(sb->s_dev);
+		__entry->dev		= sb->s_dev;
 		__entry->ino		= inode->i_ino;
 		__entry->block		= block;
 		__entry->count		= count;
 	),
 
 	TP_printk("dev %d,%d ino %lu block %llu count %u",
-		  __entry->dev_major, __entry->dev_minor,
-		  (unsigned long) __entry->ino, __entry->block, __entry->count)
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
+		  (unsigned long) __entry->ino,
+		  __entry->block, __entry->count)
 );
 
 TRACE_EVENT(ext4_mb_release_group_pa,
@@ -558,22 +597,20 @@ TRACE_EVENT(ext4_mb_release_group_pa,
 	TP_ARGS(sb, pa),
 
 	TP_STRUCT__entry(
-		__field(	int,   dev_major                )
-		__field(	int,   dev_minor                )
+		__field(	dev_t,	dev			)
 		__field(	__u64,	pa_pstart		)
 		__field(	__u32,	pa_len			)
 
 	),
 
 	TP_fast_assign(
-		__entry->dev_major	= MAJOR(sb->s_dev);
-		__entry->dev_minor	= MINOR(sb->s_dev);
+		__entry->dev		= sb->s_dev;
 		__entry->pa_pstart	= pa->pa_pstart;
 		__entry->pa_len		= pa->pa_len;
 	),
 
 	TP_printk("dev %d,%d pstart %llu len %u",
-		  __entry->dev_major, __entry->dev_minor,
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
 		  __entry->pa_pstart, __entry->pa_len)
 );
 
@@ -583,20 +620,18 @@ TRACE_EVENT(ext4_discard_preallocations,
 	TP_ARGS(inode),
 
 	TP_STRUCT__entry(
-		__field(	int,   dev_major                )
-		__field(	int,   dev_minor                )
+		__field(	dev_t,	dev			)
 		__field(	ino_t,	ino			)
 
 	),
 
 	TP_fast_assign(
-		__entry->dev_major = MAJOR(inode->i_sb->s_dev);
-		__entry->dev_minor = MINOR(inode->i_sb->s_dev);
+		__entry->dev	= inode->i_sb->s_dev;
 		__entry->ino	= inode->i_ino;
 	),
 
 	TP_printk("dev %d,%d ino %lu",
-		  __entry->dev_major, __entry->dev_minor,
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
 		  (unsigned long) __entry->ino)
 );
 
@@ -606,20 +641,19 @@ TRACE_EVENT(ext4_mb_discard_preallocations,
 	TP_ARGS(sb, needed),
 
 	TP_STRUCT__entry(
-		__field(	int,   dev_major                )
-		__field(	int,   dev_minor                )
+		__field(	dev_t,	dev			)
 		__field(	int,	needed			)
 
 	),
 
 	TP_fast_assign(
-		__entry->dev_major = MAJOR(sb->s_dev);
-		__entry->dev_minor = MINOR(sb->s_dev);
+		__entry->dev	= sb->s_dev;
 		__entry->needed	= needed;
 	),
 
 	TP_printk("dev %d,%d needed %d",
-		  __entry->dev_major, __entry->dev_minor, __entry->needed)
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
+		  __entry->needed)
 );
 
 TRACE_EVENT(ext4_request_blocks,
@@ -628,8 +662,7 @@ TRACE_EVENT(ext4_request_blocks,
 	TP_ARGS(ar),
 
 	TP_STRUCT__entry(
-		__field(	int,   dev_major                )
-		__field(	int,   dev_minor                )
+		__field(	dev_t,	dev			)
 		__field(	ino_t,	ino			)
 		__field(	unsigned int, flags		)
 		__field(	unsigned int, len		)
@@ -642,8 +675,7 @@ TRACE_EVENT(ext4_request_blocks,
 	),
 
 	TP_fast_assign(
-		__entry->dev_major = MAJOR(ar->inode->i_sb->s_dev);
-		__entry->dev_minor = MINOR(ar->inode->i_sb->s_dev);
+		__entry->dev	= ar->inode->i_sb->s_dev;
 		__entry->ino	= ar->inode->i_ino;
 		__entry->flags	= ar->flags;
 		__entry->len	= ar->len;
@@ -655,8 +687,9 @@ TRACE_EVENT(ext4_request_blocks,
 		__entry->pright	= ar->pright;
 	),
 
-	TP_printk("dev %d,%d ino %lu flags %u len %u lblk %llu goal %llu lleft %llu lright %llu pleft %llu pright %llu ",
-		  __entry->dev_major, __entry->dev_minor,
+	TP_printk("dev %d,%d ino %lu flags %u len %u lblk %llu goal %llu "
+		  "lleft %llu lright %llu pleft %llu pright %llu ",
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
 		  (unsigned long) __entry->ino,
 		  __entry->flags, __entry->len,
 		  (unsigned long long) __entry->logical,
@@ -673,8 +706,7 @@ TRACE_EVENT(ext4_allocate_blocks,
 	TP_ARGS(ar, block),
 
 	TP_STRUCT__entry(
-		__field(	int,   dev_major                )
-		__field(	int,   dev_minor                )
+		__field(	dev_t,	dev			)
 		__field(	ino_t,	ino			)
 		__field(	__u64,	block			)
 		__field(	unsigned int, flags		)
@@ -688,8 +720,7 @@ TRACE_EVENT(ext4_allocate_blocks,
 	),
 
 	TP_fast_assign(
-		__entry->dev_major = MAJOR(ar->inode->i_sb->s_dev);
-		__entry->dev_minor = MINOR(ar->inode->i_sb->s_dev);
+		__entry->dev	= ar->inode->i_sb->s_dev;
 		__entry->ino	= ar->inode->i_ino;
 		__entry->block	= block;
 		__entry->flags	= ar->flags;
@@ -702,10 +733,11 @@ TRACE_EVENT(ext4_allocate_blocks,
 		__entry->pright	= ar->pright;
 	),
 
-	TP_printk("dev %d,%d ino %lu flags %u len %u block %llu lblk %llu goal %llu lleft %llu lright %llu pleft %llu pright %llu ",
-		  __entry->dev_major, __entry->dev_minor,
-		  (unsigned long) __entry->ino, __entry->flags,
-		  __entry->len, __entry->block,
+	TP_printk("dev %d,%d ino %lu flags %u len %u block %llu lblk %llu "
+		  "goal %llu lleft %llu lright %llu pleft %llu pright %llu",
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
+		  (unsigned long) __entry->ino,
+		  __entry->flags, __entry->len, __entry->block,
 		  (unsigned long long) __entry->logical,
 		  (unsigned long long) __entry->goal,
 		  (unsigned long long) __entry->lleft,
@@ -721,8 +753,7 @@ TRACE_EVENT(ext4_free_blocks,
 	TP_ARGS(inode, block, count, flags),
 
 	TP_STRUCT__entry(
-		__field(	int,   dev_major                )
-		__field(	int,   dev_minor                )
+		__field(	dev_t,	dev			)
 		__field(	ino_t,	ino			)
 		__field(      umode_t, mode			)
 		__field(	__u64,	block			)
@@ -731,8 +762,7 @@ TRACE_EVENT(ext4_free_blocks,
 	),
 
 	TP_fast_assign(
-		__entry->dev_major	= MAJOR(inode->i_sb->s_dev);
-		__entry->dev_minor	= MINOR(inode->i_sb->s_dev);
+		__entry->dev		= inode->i_sb->s_dev;
 		__entry->ino		= inode->i_ino;
 		__entry->mode		= inode->i_mode;
 		__entry->block		= block;
@@ -741,20 +771,19 @@ TRACE_EVENT(ext4_free_blocks,
 	),
 
 	TP_printk("dev %d,%d ino %lu mode 0%o block %llu count %lu flags %d",
-		  __entry->dev_major, __entry->dev_minor,
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
 		  (unsigned long) __entry->ino,
 		  __entry->mode, __entry->block, __entry->count,
 		  __entry->flags)
 );
 
-TRACE_EVENT(ext4_sync_file,
+TRACE_EVENT(ext4_sync_file_enter,
 	TP_PROTO(struct file *file, int datasync),
 
 	TP_ARGS(file, datasync),
 
 	TP_STRUCT__entry(
-		__field(	int,   dev_major                )
-		__field(	int,   dev_minor                )
+		__field(	dev_t,	dev			)
 		__field(	ino_t,	ino			)
 		__field(	ino_t,	parent			)
 		__field(	int,	datasync		)
@@ -763,39 +792,60 @@ TRACE_EVENT(ext4_sync_file,
 	TP_fast_assign(
 		struct dentry *dentry = file->f_path.dentry;
 
-		__entry->dev_major	= MAJOR(dentry->d_inode->i_sb->s_dev);
-		__entry->dev_minor	= MINOR(dentry->d_inode->i_sb->s_dev);
+		__entry->dev		= dentry->d_inode->i_sb->s_dev;
 		__entry->ino		= dentry->d_inode->i_ino;
 		__entry->datasync	= datasync;
 		__entry->parent		= dentry->d_parent->d_inode->i_ino;
 	),
 
 	TP_printk("dev %d,%d ino %ld parent %ld datasync %d ",
-		  __entry->dev_major, __entry->dev_minor,
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
 		  (unsigned long) __entry->ino,
 		  (unsigned long) __entry->parent, __entry->datasync)
 );
 
+TRACE_EVENT(ext4_sync_file_exit,
+	TP_PROTO(struct inode *inode, int ret),
+
+	TP_ARGS(inode, ret),
+
+	TP_STRUCT__entry(
+		__field(	int,	ret			)
+		__field(	ino_t,	ino			)
+		__field(	dev_t,	dev			)
+	),
+
+	TP_fast_assign(
+		__entry->ret		= ret;
+		__entry->ino		= inode->i_ino;
+		__entry->dev		= inode->i_sb->s_dev;
+	),
+
+	TP_printk("dev %d,%d ino %ld ret %d",
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
+		  (unsigned long) __entry->ino,
+		  __entry->ret)
+);
+
 TRACE_EVENT(ext4_sync_fs,
 	TP_PROTO(struct super_block *sb, int wait),
 
 	TP_ARGS(sb, wait),
 
 	TP_STRUCT__entry(
-		__field(	int,   dev_major                )
-		__field(	int,   dev_minor                )
+		__field(	dev_t,	dev			)
 		__field(	int,	wait			)
 
 	),
 
 	TP_fast_assign(
-		__entry->dev_major = MAJOR(sb->s_dev);
-		__entry->dev_minor = MINOR(sb->s_dev);
+		__entry->dev	= sb->s_dev;
 		__entry->wait	= wait;
 	),
 
-	TP_printk("dev %d,%d wait %d", __entry->dev_major,
-		  __entry->dev_minor, __entry->wait)
+	TP_printk("dev %d,%d wait %d",
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
+		  __entry->wait)
 );
 
 TRACE_EVENT(ext4_alloc_da_blocks,
@@ -804,23 +854,21 @@ TRACE_EVENT(ext4_alloc_da_blocks,
 	TP_ARGS(inode),
 
 	TP_STRUCT__entry(
-		__field(	int,   dev_major                )
-		__field(	int,   dev_minor                )
+		__field(	dev_t,	dev			)
 		__field(	ino_t,	ino			)
 		__field( unsigned int,	data_blocks	)
 		__field( unsigned int,	meta_blocks	)
 	),
 
 	TP_fast_assign(
-		__entry->dev_major = MAJOR(inode->i_sb->s_dev);
-		__entry->dev_minor = MINOR(inode->i_sb->s_dev);
+		__entry->dev	= inode->i_sb->s_dev;
 		__entry->ino	= inode->i_ino;
 		__entry->data_blocks = EXT4_I(inode)->i_reserved_data_blocks;
 		__entry->meta_blocks = EXT4_I(inode)->i_reserved_meta_blocks;
 	),
 
 	TP_printk("dev %d,%d ino %lu data_blocks %u meta_blocks %u",
-		  __entry->dev_major, __entry->dev_minor,
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
 		  (unsigned long) __entry->ino,
 		  __entry->data_blocks, __entry->meta_blocks)
 );
@@ -831,8 +879,7 @@ TRACE_EVENT(ext4_mballoc_alloc,
 	TP_ARGS(ac),
 
 	TP_STRUCT__entry(
-		__field(	int,   dev_major                )
-		__field(	int,   dev_minor                )
+		__field(	dev_t,	dev			)
 		__field(	ino_t,	ino			)
 		__field(	__u16,	found			)
 		__field(	__u16,	groups			)
@@ -855,8 +902,7 @@ TRACE_EVENT(ext4_mballoc_alloc,
 	),
 
 	TP_fast_assign(
-		__entry->dev_major	= MAJOR(ac->ac_inode->i_sb->s_dev);
-		__entry->dev_minor	= MINOR(ac->ac_inode->i_sb->s_dev);
+		__entry->dev		= ac->ac_inode->i_sb->s_dev;
 		__entry->ino		= ac->ac_inode->i_ino;
 		__entry->found		= ac->ac_found;
 		__entry->flags		= ac->ac_flags;
@@ -881,7 +927,7 @@ TRACE_EVENT(ext4_mballoc_alloc,
 	TP_printk("dev %d,%d inode %lu orig %u/%d/%u@%u goal %u/%d/%u@%u "
 		  "result %u/%d/%u@%u blks %u grps %u cr %u flags 0x%04x "
 		  "tail %u broken %u",
-		  __entry->dev_major, __entry->dev_minor,
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
 		  (unsigned long) __entry->ino,
 		  __entry->orig_group, __entry->orig_start,
 		  __entry->orig_len, __entry->orig_logical,
@@ -900,8 +946,7 @@ TRACE_EVENT(ext4_mballoc_prealloc,
 	TP_ARGS(ac),
 
 	TP_STRUCT__entry(
-		__field(	int,   dev_major                )
-		__field(	int,   dev_minor                )
+		__field(	dev_t,	dev			)
 		__field(	ino_t,	ino			)
 		__field(	__u32, 	orig_logical		)
 		__field(	  int,	orig_start		)
@@ -914,8 +959,7 @@ TRACE_EVENT(ext4_mballoc_prealloc,
 	),
 
 	TP_fast_assign(
-		__entry->dev_major	= MAJOR(ac->ac_inode->i_sb->s_dev);
-		__entry->dev_minor	= MINOR(ac->ac_inode->i_sb->s_dev);
+		__entry->dev		= ac->ac_inode->i_sb->s_dev;
 		__entry->ino		= ac->ac_inode->i_ino;
 		__entry->orig_logical	= ac->ac_o_ex.fe_logical;
 		__entry->orig_start	= ac->ac_o_ex.fe_start;
@@ -928,7 +972,7 @@ TRACE_EVENT(ext4_mballoc_prealloc,
 	),
 
 	TP_printk("dev %d,%d inode %lu orig %u/%d/%u@%u result %u/%d/%u@%u",
-		  __entry->dev_major, __entry->dev_minor,
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
 		  (unsigned long) __entry->ino,
 		  __entry->orig_group, __entry->orig_start,
 		  __entry->orig_len, __entry->orig_logical,
@@ -946,8 +990,7 @@ DECLARE_EVENT_CLASS(ext4__mballoc,
 	TP_ARGS(sb, inode, group, start, len),
 
 	TP_STRUCT__entry(
-		__field(	int,   dev_major                )
-		__field(	int,   dev_minor                )
+		__field(	dev_t,	dev			)
 		__field(	ino_t,	ino			)
 		__field(	  int,	result_start		)
 		__field(	__u32, 	result_group		)
@@ -955,8 +998,7 @@ DECLARE_EVENT_CLASS(ext4__mballoc,
 	),
 
 	TP_fast_assign(
-		__entry->dev_major	= MAJOR(sb->s_dev);
-		__entry->dev_minor	= MINOR(sb->s_dev);
+		__entry->dev		= sb->s_dev;
 		__entry->ino		= inode ? inode->i_ino : 0;
 		__entry->result_start	= start;
 		__entry->result_group	= group;
@@ -964,7 +1006,7 @@ DECLARE_EVENT_CLASS(ext4__mballoc,
 	),
 
 	TP_printk("dev %d,%d inode %lu extent %u/%d/%u ",
-		  __entry->dev_major, __entry->dev_minor,
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
 		  (unsigned long) __entry->ino,
 		  __entry->result_group, __entry->result_start,
 		  __entry->result_len)
@@ -998,8 +1040,7 @@ TRACE_EVENT(ext4_forget,
 	TP_ARGS(inode, is_metadata, block),
 
 	TP_STRUCT__entry(
-		__field(	int,   dev_major                )
-		__field(	int,   dev_minor                )
+		__field(	dev_t,	dev			)
 		__field(	ino_t,	ino			)
 		__field(	umode_t, mode			)
 		__field(	int,	is_metadata		)
@@ -1007,8 +1048,7 @@ TRACE_EVENT(ext4_forget,
 	),
 
 	TP_fast_assign(
-		__entry->dev_major = MAJOR(inode->i_sb->s_dev);
-		__entry->dev_minor = MINOR(inode->i_sb->s_dev);
+		__entry->dev	= inode->i_sb->s_dev;
 		__entry->ino	= inode->i_ino;
 		__entry->mode	= inode->i_mode;
 		__entry->is_metadata = is_metadata;
@@ -1016,9 +1056,9 @@ TRACE_EVENT(ext4_forget,
 	),
 
 	TP_printk("dev %d,%d ino %lu mode 0%o is_metadata %d block %llu",
-		  __entry->dev_major, __entry->dev_minor,
-		  (unsigned long) __entry->ino, __entry->mode,
-		  __entry->is_metadata, __entry->block)
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
+		  (unsigned long) __entry->ino,
+		  __entry->mode, __entry->is_metadata, __entry->block)
 );
 
 TRACE_EVENT(ext4_da_update_reserve_space,
@@ -1027,8 +1067,7 @@ TRACE_EVENT(ext4_da_update_reserve_space,
 	TP_ARGS(inode, used_blocks),
 
 	TP_STRUCT__entry(
-		__field(	int,   dev_major                )
-		__field(	int,   dev_minor                )
+		__field(	dev_t,	dev			)
 		__field(	ino_t,	ino			)
 		__field(	umode_t, mode			)
 		__field(	__u64,	i_blocks		)
@@ -1039,8 +1078,7 @@ TRACE_EVENT(ext4_da_update_reserve_space,
 	),
 
 	TP_fast_assign(
-		__entry->dev_major = MAJOR(inode->i_sb->s_dev);
-		__entry->dev_minor = MINOR(inode->i_sb->s_dev);
+		__entry->dev	= inode->i_sb->s_dev;
 		__entry->ino	= inode->i_ino;
 		__entry->mode	= inode->i_mode;
 		__entry->i_blocks = inode->i_blocks;
@@ -1050,10 +1088,12 @@ TRACE_EVENT(ext4_da_update_reserve_space,
 		__entry->allocated_meta_blocks = EXT4_I(inode)->i_allocated_meta_blocks;
 	),
 
-	TP_printk("dev %d,%d ino %lu mode 0%o i_blocks %llu used_blocks %d reserved_data_blocks %d reserved_meta_blocks %d allocated_meta_blocks %d",
-		  __entry->dev_major, __entry->dev_minor,
-		  (unsigned long) __entry->ino, __entry->mode,
-		  (unsigned long long) __entry->i_blocks,
+	TP_printk("dev %d,%d ino %lu mode 0%o i_blocks %llu used_blocks %d "
+		  "reserved_data_blocks %d reserved_meta_blocks %d "
+		  "allocated_meta_blocks %d",
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
+		  (unsigned long) __entry->ino,
+		  __entry->mode,  (unsigned long long) __entry->i_blocks,
 		  __entry->used_blocks, __entry->reserved_data_blocks,
 		  __entry->reserved_meta_blocks, __entry->allocated_meta_blocks)
 );
@@ -1064,8 +1104,7 @@ TRACE_EVENT(ext4_da_reserve_space,
 	TP_ARGS(inode, md_needed),
 
 	TP_STRUCT__entry(
-		__field(	int,   dev_major                )
-		__field(	int,   dev_minor                )
+		__field(	dev_t,	dev			)
 		__field(	ino_t,	ino			)
 		__field(	umode_t, mode			)
 		__field(	__u64,	i_blocks		)
@@ -1075,8 +1114,7 @@ TRACE_EVENT(ext4_da_reserve_space,
 	),
 
 	TP_fast_assign(
-		__entry->dev_major = MAJOR(inode->i_sb->s_dev);
-		__entry->dev_minor = MINOR(inode->i_sb->s_dev);
+		__entry->dev	= inode->i_sb->s_dev;
 		__entry->ino	= inode->i_ino;
 		__entry->mode	= inode->i_mode;
 		__entry->i_blocks = inode->i_blocks;
@@ -1085,8 +1123,9 @@ TRACE_EVENT(ext4_da_reserve_space,
 		__entry->reserved_meta_blocks = EXT4_I(inode)->i_reserved_meta_blocks;
 	),
 
-	TP_printk("dev %d,%d ino %lu mode 0%o i_blocks %llu md_needed %d reserved_data_blocks %d reserved_meta_blocks %d",
-		  __entry->dev_major, __entry->dev_minor,
+	TP_printk("dev %d,%d ino %lu mode 0%o i_blocks %llu md_needed %d "
+		  "reserved_data_blocks %d reserved_meta_blocks %d",
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
 		  (unsigned long) __entry->ino,
 		  __entry->mode, (unsigned long long) __entry->i_blocks,
 		  __entry->md_needed, __entry->reserved_data_blocks,
@@ -1099,8 +1138,7 @@ TRACE_EVENT(ext4_da_release_space,
 	TP_ARGS(inode, freed_blocks),
 
 	TP_STRUCT__entry(
-		__field(	int,   dev_major                )
-		__field(	int,   dev_minor                )
+		__field(	dev_t,	dev			)
 		__field(	ino_t,	ino			)
 		__field(	umode_t, mode			)
 		__field(	__u64,	i_blocks		)
@@ -1111,8 +1149,7 @@ TRACE_EVENT(ext4_da_release_space,
 	),
 
 	TP_fast_assign(
-		__entry->dev_major = MAJOR(inode->i_sb->s_dev);
-		__entry->dev_minor = MINOR(inode->i_sb->s_dev);
+		__entry->dev	= inode->i_sb->s_dev;
 		__entry->ino	= inode->i_ino;
 		__entry->mode	= inode->i_mode;
 		__entry->i_blocks = inode->i_blocks;
@@ -1122,8 +1159,10 @@ TRACE_EVENT(ext4_da_release_space,
 		__entry->allocated_meta_blocks = EXT4_I(inode)->i_allocated_meta_blocks;
 	),
 
-	TP_printk("dev %d,%d ino %lu mode 0%o i_blocks %llu freed_blocks %d reserved_data_blocks %d reserved_meta_blocks %d allocated_meta_blocks %d",
-		  __entry->dev_major, __entry->dev_minor,
+	TP_printk("dev %d,%d ino %lu mode 0%o i_blocks %llu freed_blocks %d "
+		  "reserved_data_blocks %d reserved_meta_blocks %d "
+		  "allocated_meta_blocks %d",
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
 		  (unsigned long) __entry->ino,
 		  __entry->mode, (unsigned long long) __entry->i_blocks,
 		  __entry->freed_blocks, __entry->reserved_data_blocks,
@@ -1136,20 +1175,19 @@ DECLARE_EVENT_CLASS(ext4__bitmap_load,
 	TP_ARGS(sb, group),
 
 	TP_STRUCT__entry(
-		__field(	int,   dev_major                )
-		__field(	int,   dev_minor                )
+		__field(	dev_t,	dev			)
 		__field(	__u32,	group			)
 
 	),
 
 	TP_fast_assign(
-		__entry->dev_major = MAJOR(sb->s_dev);
-		__entry->dev_minor = MINOR(sb->s_dev);
+		__entry->dev	= sb->s_dev;
 		__entry->group	= group;
 	),
 
 	TP_printk("dev %d,%d group %u",
-		  __entry->dev_major, __entry->dev_minor, __entry->group)
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
+		  __entry->group)
 );
 
 DEFINE_EVENT(ext4__bitmap_load, ext4_mb_bitmap_load,
@@ -1166,6 +1204,349 @@ DEFINE_EVENT(ext4__bitmap_load, ext4_mb_buddy_bitmap_load,
 	TP_ARGS(sb, group)
 );
 
+DEFINE_EVENT(ext4__bitmap_load, ext4_read_block_bitmap_load,
+
+	TP_PROTO(struct super_block *sb, unsigned long group),
+
+	TP_ARGS(sb, group)
+);
+
+DEFINE_EVENT(ext4__bitmap_load, ext4_load_inode_bitmap,
+
+	TP_PROTO(struct super_block *sb, unsigned long group),
+
+	TP_ARGS(sb, group)
+);
+
+TRACE_EVENT(ext4_direct_IO_enter,
+	TP_PROTO(struct inode *inode, loff_t offset, unsigned long len, int rw),
+
+	TP_ARGS(inode, offset, len, rw),
+
+	TP_STRUCT__entry(
+		__field(	ino_t,	ino			)
+		__field(	dev_t,	dev			)
+		__field(	loff_t,	pos			)
+		__field(	unsigned long,	len		)
+		__field(	int,	rw			)
+	),
+
+	TP_fast_assign(
+		__entry->ino	= inode->i_ino;
+		__entry->dev	= inode->i_sb->s_dev;
+		__entry->pos	= offset;
+		__entry->len	= len;
+		__entry->rw	= rw;
+	),
+
+	TP_printk("dev %d,%d ino %lu pos %llu len %lu rw %d",
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
+		  (unsigned long) __entry->ino,
+		  (unsigned long long) __entry->pos, __entry->len, __entry->rw)
+);
+
+TRACE_EVENT(ext4_direct_IO_exit,
+	TP_PROTO(struct inode *inode, loff_t offset, unsigned long len, int rw, int ret),
+
+	TP_ARGS(inode, offset, len, rw, ret),
+
+	TP_STRUCT__entry(
+		__field(	ino_t,	ino			)
+		__field(	dev_t,	dev			)
+		__field(	loff_t,	pos			)
+		__field(	unsigned long,	len		)
+		__field(	int,	rw			)
+		__field(	int,	ret			)
+	),
+
+	TP_fast_assign(
+		__entry->ino	= inode->i_ino;
+		__entry->dev	= inode->i_sb->s_dev;
+		__entry->pos	= offset;
+		__entry->len	= len;
+		__entry->rw	= rw;
+		__entry->ret	= ret;
+	),
+
+	TP_printk("dev %d,%d ino %lu pos %llu len %lu rw %d ret %d",
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
+		  (unsigned long) __entry->ino,
+		  (unsigned long long) __entry->pos, __entry->len,
+		  __entry->rw, __entry->ret)
+);
+
+TRACE_EVENT(ext4_fallocate_enter,
+	TP_PROTO(struct inode *inode, loff_t offset, loff_t len, int mode),
+
+	TP_ARGS(inode, offset, len, mode),
+
+	TP_STRUCT__entry(
+		__field(	ino_t,	ino			)
+		__field(	dev_t,	dev			)
+		__field(	loff_t,	pos			)
+		__field(	loff_t,	len			)
+		__field(	int,	mode			)
+	),
+
+	TP_fast_assign(
+		__entry->ino	= inode->i_ino;
+		__entry->dev	= inode->i_sb->s_dev;
+		__entry->pos	= offset;
+		__entry->len	= len;
+		__entry->mode	= mode;
+	),
+
+	TP_printk("dev %d,%d ino %ld pos %llu len %llu mode %d",
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
+		  (unsigned long) __entry->ino,
+		  (unsigned long long) __entry->pos,
+		  (unsigned long long) __entry->len, __entry->mode)
+);
+
+TRACE_EVENT(ext4_fallocate_exit,
+	TP_PROTO(struct inode *inode, loff_t offset, unsigned int max_blocks, int ret),
+
+	TP_ARGS(inode, offset, max_blocks, ret),
+
+	TP_STRUCT__entry(
+		__field(	ino_t,	ino			)
+		__field(	dev_t,	dev			)
+		__field(	loff_t,	pos			)
+		__field(	unsigned,	blocks		)
+		__field(	int, 	ret			)
+	),
+
+	TP_fast_assign(
+		__entry->ino	= inode->i_ino;
+		__entry->dev	= inode->i_sb->s_dev;
+		__entry->pos	= offset;
+		__entry->blocks	= max_blocks;
+		__entry->ret	= ret;
+	),
+
+	TP_printk("dev %d,%d ino %ld pos %llu blocks %d ret %d",
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
+		  (unsigned long) __entry->ino,
+		  (unsigned long long) __entry->pos, __entry->blocks,
+		  __entry->ret)
+);
+
+TRACE_EVENT(ext4_unlink_enter,
+	TP_PROTO(struct inode *parent, struct dentry *dentry),
+
+	TP_ARGS(parent, dentry),
+
+	TP_STRUCT__entry(
+		__field(	ino_t,	parent			)
+		__field(	ino_t,	ino			)
+		__field(	loff_t,	size			)
+		__field(	dev_t,	dev			)
+	),
+
+	TP_fast_assign(
+		__entry->parent		= parent->i_ino;
+		__entry->ino		= dentry->d_inode->i_ino;
+		__entry->size		= dentry->d_inode->i_size;
+		__entry->dev		= dentry->d_inode->i_sb->s_dev;
+	),
+
+	TP_printk("dev %d,%d ino %ld size %lld parent %ld",
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
+		  (unsigned long) __entry->ino, __entry->size,
+		  (unsigned long) __entry->parent)
+);
+
+TRACE_EVENT(ext4_unlink_exit,
+	TP_PROTO(struct dentry *dentry, int ret),
+
+	TP_ARGS(dentry, ret),
+
+	TP_STRUCT__entry(
+		__field(	ino_t,	ino			)
+		__field(	dev_t,	dev			)
+		__field(	int,	ret			)
+	),
+
+	TP_fast_assign(
+		__entry->ino		= dentry->d_inode->i_ino;
+		__entry->dev		= dentry->d_inode->i_sb->s_dev;
+		__entry->ret		= ret;
+	),
+
+	TP_printk("dev %d,%d ino %ld ret %d",
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
+		  (unsigned long) __entry->ino,
+		  __entry->ret)
+);
+
+DECLARE_EVENT_CLASS(ext4__truncate,
+	TP_PROTO(struct inode *inode),
+
+	TP_ARGS(inode),
+
+	TP_STRUCT__entry(
+		__field(	ino_t,  	ino		)
+		__field(	dev_t,  	dev		)
+		__field(	blkcnt_t,	blocks		)
+	),
+
+	TP_fast_assign(
+		__entry->ino    = inode->i_ino;
+		__entry->dev    = inode->i_sb->s_dev;
+		__entry->blocks	= inode->i_blocks;
+	),
+
+	TP_printk("dev %d,%d ino %lu blocks %lu",
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
+		  (unsigned long) __entry->ino, (unsigned long) __entry->blocks)
+);
+
+DEFINE_EVENT(ext4__truncate, ext4_truncate_enter,
+
+	TP_PROTO(struct inode *inode),
+
+	TP_ARGS(inode)
+);
+
+DEFINE_EVENT(ext4__truncate, ext4_truncate_exit,
+
+	TP_PROTO(struct inode *inode),
+
+	TP_ARGS(inode)
+);
+
+DECLARE_EVENT_CLASS(ext4__map_blocks_enter,
+	TP_PROTO(struct inode *inode, ext4_lblk_t lblk,
+		 unsigned len, unsigned flags),
+
+	TP_ARGS(inode, lblk, len, flags),
+
+	TP_STRUCT__entry(
+		__field(	ino_t,  	ino		)
+		__field(	dev_t,  	dev		)
+		__field(	ext4_lblk_t,	lblk		)
+		__field(	unsigned,	len		)
+		__field(	unsigned,	flags		)
+	),
+
+	TP_fast_assign(
+		__entry->ino    = inode->i_ino;
+		__entry->dev    = inode->i_sb->s_dev;
+		__entry->lblk	= lblk;
+		__entry->len	= len;
+		__entry->flags	= flags;
+	),
+
+	TP_printk("dev %d,%d ino %lu lblk %u len %u flags %u",
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
+		  (unsigned long) __entry->ino,
+		  (unsigned) __entry->lblk, __entry->len, __entry->flags)
+);
+
+DEFINE_EVENT(ext4__map_blocks_enter, ext4_ext_map_blocks_enter,
+	TP_PROTO(struct inode *inode, ext4_lblk_t lblk,
+		 unsigned len, unsigned flags),
+
+	TP_ARGS(inode, lblk, len, flags)
+);
+
+DEFINE_EVENT(ext4__map_blocks_enter, ext4_ind_map_blocks_enter,
+	TP_PROTO(struct inode *inode, ext4_lblk_t lblk,
+		 unsigned len, unsigned flags),
+
+	TP_ARGS(inode, lblk, len, flags)
+);
+
+DECLARE_EVENT_CLASS(ext4__map_blocks_exit,
+	TP_PROTO(struct inode *inode, ext4_lblk_t lblk,
+		 ext4_fsblk_t pblk, unsigned len, int ret),
+
+	TP_ARGS(inode, lblk, pblk, len, ret),
+
+	TP_STRUCT__entry(
+		__field(	ino_t,		ino		)
+		__field(	dev_t,		dev		)
+		__field(	ext4_lblk_t,	lblk		)
+		__field(	ext4_fsblk_t,	pblk		)
+		__field(	unsigned,	len		)
+		__field(	int,		ret		)
+	),
+
+	TP_fast_assign(
+		__entry->ino    = inode->i_ino;
+		__entry->dev    = inode->i_sb->s_dev;
+		__entry->lblk	= lblk;
+		__entry->pblk	= pblk;
+		__entry->len	= len;
+		__entry->ret	= ret;
+	),
+
+	TP_printk("dev %d,%d ino %lu lblk %u pblk %llu len %u ret %d",
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
+		  (unsigned long) __entry->ino,
+		  (unsigned) __entry->lblk, (unsigned long long) __entry->pblk,
+		  __entry->len, __entry->ret)
+);
+
+DEFINE_EVENT(ext4__map_blocks_exit, ext4_ext_map_blocks_exit,
+	TP_PROTO(struct inode *inode, ext4_lblk_t lblk,
+		 ext4_fsblk_t pblk, unsigned len, int ret),
+
+	TP_ARGS(inode, lblk, pblk, len, ret)
+);
+
+DEFINE_EVENT(ext4__map_blocks_exit, ext4_ind_map_blocks_exit,
+	TP_PROTO(struct inode *inode, ext4_lblk_t lblk,
+		 ext4_fsblk_t pblk, unsigned len, int ret),
+
+	TP_ARGS(inode, lblk, pblk, len, ret)
+);
+
+TRACE_EVENT(ext4_ext_load_extent,
+	TP_PROTO(struct inode *inode, ext4_lblk_t lblk, ext4_fsblk_t pblk),
+
+	TP_ARGS(inode, lblk, pblk),
+
+	TP_STRUCT__entry(
+		__field(	ino_t,		ino		)
+		__field(	dev_t,		dev		)
+		__field(	ext4_lblk_t,	lblk		)
+		__field(	ext4_fsblk_t,	pblk		)
+	),
+
+	TP_fast_assign(
+		__entry->ino    = inode->i_ino;
+		__entry->dev    = inode->i_sb->s_dev;
+		__entry->lblk	= lblk;
+		__entry->pblk	= pblk;
+	),
+
+	TP_printk("dev %d,%d ino %lu lblk %u pblk %llu",
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
+		  (unsigned long) __entry->ino,
+		  (unsigned) __entry->lblk, (unsigned long long) __entry->pblk)
+);
+
+TRACE_EVENT(ext4_load_inode,
+	TP_PROTO(struct inode *inode),
+
+	TP_ARGS(inode),
+
+	TP_STRUCT__entry(
+		__field(	ino_t,	ino		)
+		__field(	dev_t,	dev		)
+	),
+
+	TP_fast_assign(
+		__entry->ino		= inode->i_ino;
+		__entry->dev		= inode->i_sb->s_dev;
+	),
+
+	TP_printk("dev %d,%d ino %ld",
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
+		  (unsigned long) __entry->ino)
+);
+
 #endif /* _TRACE_EXT4_H */
 
 /* This part must be outside protection */
diff --git a/include/trace/events/jbd2.h b/include/trace/events/jbd2.h
index 7447ea9305b5..bf16545cc977 100644
--- a/include/trace/events/jbd2.h
+++ b/include/trace/events/jbd2.h
@@ -17,19 +17,17 @@ TRACE_EVENT(jbd2_checkpoint,
 	TP_ARGS(journal, result),
 
 	TP_STRUCT__entry(
-		__field(	int,	dev_major		)
-		__field(	int,	dev_minor		)
+		__field(	dev_t,	dev			)
 		__field(	int,	result			)
 	),
 
 	TP_fast_assign(
-		__entry->dev_major	= MAJOR(journal->j_fs_dev->bd_dev);
-		__entry->dev_minor	= MINOR(journal->j_fs_dev->bd_dev);
+		__entry->dev		= journal->j_fs_dev->bd_dev;
 		__entry->result		= result;
 	),
 
-	TP_printk("dev %d,%d result %d",
-		  __entry->dev_major, __entry->dev_minor, __entry->result)
+	TP_printk("dev %s result %d",
+		  jbd2_dev_to_name(__entry->dev), __entry->result)
 );
 
 DECLARE_EVENT_CLASS(jbd2_commit,
@@ -39,22 +37,20 @@ DECLARE_EVENT_CLASS(jbd2_commit,
 	TP_ARGS(journal, commit_transaction),
 
 	TP_STRUCT__entry(
-		__field(	int,   dev_major                )
-		__field(	int,   dev_minor                )
+		__field(	dev_t,	dev			)
 		__field(	char,	sync_commit		  )
 		__field(	int,	transaction		  )
 	),
 
 	TP_fast_assign(
-		__entry->dev_major	= MAJOR(journal->j_fs_dev->bd_dev);
-		__entry->dev_minor	= MINOR(journal->j_fs_dev->bd_dev);
+		__entry->dev		= journal->j_fs_dev->bd_dev;
 		__entry->sync_commit = commit_transaction->t_synchronous_commit;
 		__entry->transaction	= commit_transaction->t_tid;
 	),
 
-	TP_printk("dev %d,%d transaction %d sync %d",
-		  __entry->dev_major, __entry->dev_minor,
-		  __entry->transaction, __entry->sync_commit)
+	TP_printk("dev %s transaction %d sync %d",
+		  jbd2_dev_to_name(__entry->dev), __entry->transaction,
+		  __entry->sync_commit)
 );
 
 DEFINE_EVENT(jbd2_commit, jbd2_start_commit,
@@ -91,24 +87,22 @@ TRACE_EVENT(jbd2_end_commit,
 	TP_ARGS(journal, commit_transaction),
 
 	TP_STRUCT__entry(
-		__field(	int,   dev_major                )
-		__field(	int,   dev_minor                )
+		__field(	dev_t,	dev			)
 		__field(	char,	sync_commit		  )
 		__field(	int,	transaction		  )
 		__field(	int,	head		  	  )
 	),
 
 	TP_fast_assign(
-		__entry->dev_major	= MAJOR(journal->j_fs_dev->bd_dev);
-		__entry->dev_minor	= MINOR(journal->j_fs_dev->bd_dev);
+		__entry->dev		= journal->j_fs_dev->bd_dev;
 		__entry->sync_commit = commit_transaction->t_synchronous_commit;
 		__entry->transaction	= commit_transaction->t_tid;
 		__entry->head		= journal->j_tail_sequence;
 	),
 
-	TP_printk("dev %d,%d transaction %d sync %d head %d",
-		  __entry->dev_major, __entry->dev_minor,
-		  __entry->transaction, __entry->sync_commit, __entry->head)
+	TP_printk("dev %s transaction %d sync %d head %d",
+		  jbd2_dev_to_name(__entry->dev), __entry->transaction,
+		  __entry->sync_commit, __entry->head)
 );
 
 TRACE_EVENT(jbd2_submit_inode_data,
@@ -117,20 +111,17 @@ TRACE_EVENT(jbd2_submit_inode_data,
 	TP_ARGS(inode),
 
 	TP_STRUCT__entry(
-		__field(	int,   dev_major                )
-		__field(	int,   dev_minor                )
+		__field(	dev_t,	dev			)
 		__field(	ino_t,	ino			)
 	),
 
 	TP_fast_assign(
-		__entry->dev_major = MAJOR(inode->i_sb->s_dev);
-		__entry->dev_minor = MINOR(inode->i_sb->s_dev);
+		__entry->dev	= inode->i_sb->s_dev;
 		__entry->ino	= inode->i_ino;
 	),
 
-	TP_printk("dev %d,%d ino %lu",
-		  __entry->dev_major, __entry->dev_minor,
-		  (unsigned long) __entry->ino)
+	TP_printk("dev %s ino %lu",
+		  jbd2_dev_to_name(__entry->dev), (unsigned long) __entry->ino)
 );
 
 TRACE_EVENT(jbd2_run_stats,
@@ -140,8 +131,7 @@ TRACE_EVENT(jbd2_run_stats,
 	TP_ARGS(dev, tid, stats),
 
 	TP_STRUCT__entry(
-		__field(		  int,	dev_major	)
-		__field(		  int,	dev_minor	)
+		__field(		dev_t,	dev		)
 		__field(	unsigned long,	tid		)
 		__field(	unsigned long,	wait		)
 		__field(	unsigned long,	running		)
@@ -154,8 +144,7 @@ TRACE_EVENT(jbd2_run_stats,
 	),
 
 	TP_fast_assign(
-		__entry->dev_major	= MAJOR(dev);
-		__entry->dev_minor	= MINOR(dev);
+		__entry->dev		= dev;
 		__entry->tid		= tid;
 		__entry->wait		= stats->rs_wait;
 		__entry->running	= stats->rs_running;
@@ -167,9 +156,9 @@ TRACE_EVENT(jbd2_run_stats,
 		__entry->blocks_logged	= stats->rs_blocks_logged;
 	),
 
-	TP_printk("dev %d,%d tid %lu wait %u running %u locked %u flushing %u "
+	TP_printk("dev %s tid %lu wait %u running %u locked %u flushing %u "
 		  "logging %u handle_count %u blocks %u blocks_logged %u",
-		  __entry->dev_major, __entry->dev_minor, __entry->tid,
+		  jbd2_dev_to_name(__entry->dev), __entry->tid,
 		  jiffies_to_msecs(__entry->wait),
 		  jiffies_to_msecs(__entry->running),
 		  jiffies_to_msecs(__entry->locked),
@@ -186,8 +175,7 @@ TRACE_EVENT(jbd2_checkpoint_stats,
 	TP_ARGS(dev, tid, stats),
 
 	TP_STRUCT__entry(
-		__field(		  int,	dev_major	)
-		__field(		  int,	dev_minor	)
+		__field(		dev_t,	dev		)
 		__field(	unsigned long,	tid		)
 		__field(	unsigned long,	chp_time	)
 		__field(		__u32,	forced_to_close	)
@@ -196,8 +184,7 @@ TRACE_EVENT(jbd2_checkpoint_stats,
 	),
 
 	TP_fast_assign(
-		__entry->dev_major	= MAJOR(dev);
-		__entry->dev_minor	= MINOR(dev);
+		__entry->dev		= dev;
 		__entry->tid		= tid;
 		__entry->chp_time	= stats->cs_chp_time;
 		__entry->forced_to_close= stats->cs_forced_to_close;
@@ -205,9 +192,9 @@ TRACE_EVENT(jbd2_checkpoint_stats,
 		__entry->dropped	= stats->cs_dropped;
 	),
 
-	TP_printk("dev %d,%d tid %lu chp_time %u forced_to_close %u "
+	TP_printk("dev %s tid %lu chp_time %u forced_to_close %u "
 		  "written %u dropped %u",
-		  __entry->dev_major, __entry->dev_minor, __entry->tid,
+		  jbd2_dev_to_name(__entry->dev), __entry->tid,
 		  jiffies_to_msecs(__entry->chp_time),
 		  __entry->forced_to_close, __entry->written, __entry->dropped)
 );
@@ -220,8 +207,7 @@ TRACE_EVENT(jbd2_cleanup_journal_tail,
 	TP_ARGS(journal, first_tid, block_nr, freed),
 
 	TP_STRUCT__entry(
-		__field(	int,   dev_major                )
-		__field(	int,   dev_minor                )
+		__field(	dev_t,	dev			)
 		__field(	tid_t,	tail_sequence		)
 		__field(	tid_t,	first_tid		)
 		__field(unsigned long,	block_nr		)
@@ -229,18 +215,16 @@ TRACE_EVENT(jbd2_cleanup_journal_tail,
 	),
 
 	TP_fast_assign(
-		__entry->dev_major	= MAJOR(journal->j_fs_dev->bd_dev);
-		__entry->dev_minor	= MINOR(journal->j_fs_dev->bd_dev);
+		__entry->dev		= journal->j_fs_dev->bd_dev;
 		__entry->tail_sequence	= journal->j_tail_sequence;
 		__entry->first_tid	= first_tid;
 		__entry->block_nr	= block_nr;
 		__entry->freed		= freed;
 	),
 
-	TP_printk("dev %d,%d from %u to %u offset %lu freed %lu",
-		  __entry->dev_major, __entry->dev_minor,
-		  __entry->tail_sequence, __entry->first_tid,
-		  __entry->block_nr, __entry->freed)
+	TP_printk("dev %s from %u to %u offset %lu freed %lu",
+		  jbd2_dev_to_name(__entry->dev), __entry->tail_sequence,
+		  __entry->first_tid, __entry->block_nr, __entry->freed)
 );
 
 #endif /* _TRACE_JBD2_H */
diff --git a/include/video/kyro.h b/include/video/kyro.h
index dba7de2ee4a8..c563968e926c 100644
--- a/include/video/kyro.h
+++ b/include/video/kyro.h
@@ -32,7 +32,7 @@ struct kyrofb_info {
 	u32 PIXCLK;	/* Pixel Clock       */
 	u32 HCLK;	/* Hor Clock         */
 
-	/* Usefull to hold depth here for Linux */
+	/* Useful to hold depth here for Linux */
 	u8 PIXDEPTH;
 
 #ifdef CONFIG_MTRR
diff --git a/include/video/neomagic.h b/include/video/neomagic.h
index 08b663782956..bc5013e8059d 100644
--- a/include/video/neomagic.h
+++ b/include/video/neomagic.h
@@ -129,7 +129,7 @@ struct neofb_par {
 	unsigned char CRTC[25];		/* Crtc Controller */
 	unsigned char Sequencer[5];	/* Video Sequencer */
 	unsigned char Graphics[9];	/* Video Graphics */
-	unsigned char Attribute[21];	/* Video Atribute */
+	unsigned char Attribute[21];	/* Video Attribute */
 
 	unsigned char GeneralLockReg;
 	unsigned char ExtCRTDispAddr;
diff --git a/include/video/newport.h b/include/video/newport.h
index 001b935e71c4..3d7c4b492ec6 100644
--- a/include/video/newport.h
+++ b/include/video/newport.h
@@ -5,7 +5,7 @@
  *
  * Copyright (C) 1996 David S. Miller (dm@engr.sgi.com)
  * 
- * Ulf Carlsson - Compability with the IRIX structures added
+ * Ulf Carlsson - Compatibility with the IRIX structures added
  */
 
 #ifndef _SGI_NEWPORT_H
diff --git a/include/video/sisfb.h b/include/video/sisfb.h
index fdd74f1a6791..6dc5df9e43f3 100644
--- a/include/video/sisfb.h
+++ b/include/video/sisfb.h
@@ -151,7 +151,7 @@ struct sisfb_cmd {
 	__u32  sisfb_result[4];
 };
 
-/* Addtional IOCTLs for communication sisfb <> X driver                */
+/* Additional IOCTLs for communication sisfb <> X driver                */
 /* If changing this, vgatypes.h must also be changed (for X driver)    */
 
 /* ioctl for identifying and giving some info (esp. memory heap start) */
diff --git a/include/video/sstfb.h b/include/video/sstfb.h
index b52f07381243..c449eace12cd 100644
--- a/include/video/sstfb.h
+++ b/include/video/sstfb.h
@@ -156,7 +156,7 @@
 #define DAC_READ		FBIINIT2	/* in remap mode */
 #define FBIINIT3		0x021c		/* fbi controls */
 #  define DISABLE_TEXTURE	  BIT(6)
-#  define Y_SWAP_ORIGIN_SHIFT	  22		/* Y swap substraction value */
+#  define Y_SWAP_ORIGIN_SHIFT	  22		/* Y swap subtraction value */
 #define HSYNC			0x0220
 #define VSYNC			0x0224
 #define DAC_DATA		0x022c
@@ -212,9 +212,9 @@
 #  define DACREG_CR0_24BPP	  0x50		/* mode 5 */
 #define	DACREG_CR1_I		0x05
 #define DACREG_CC_I		0x06
-#  define DACREG_CC_CLKA	  BIT(7)	/* clk A controled by regs */
+#  define DACREG_CC_CLKA	  BIT(7)	/* clk A controlled by regs */
 #  define DACREG_CC_CLKA_C	  (2<<4)	/* clk A uses reg C */
-#  define DACREG_CC_CLKB	  BIT(3)	/* clk B controled by regs */
+#  define DACREG_CC_CLKB	  BIT(3)	/* clk B controlled by regs */
 #  define DACREG_CC_CLKB_D	  3		/* clkB uses reg D */
 #define DACREG_AC0_I		0x48		/* clock A reg C */
 #define DACREG_AC1_I		0x49
diff --git a/include/xen/interface/elfnote.h b/include/xen/interface/elfnote.h
index 7a8262c375cc..0360b15f4883 100644
--- a/include/xen/interface/elfnote.h
+++ b/include/xen/interface/elfnote.h
@@ -51,7 +51,7 @@
 
 /*
  * The offset of the ELF paddr field from the acutal required
- * psuedo-physical address (numeric).
+ * pseudo-physical address (numeric).
  *
  * This is used to maintain backwards compatibility with older kernels
  * which wrote __PAGE_OFFSET into that field. This field defaults to 0
diff --git a/init/do_mounts.c b/init/do_mounts.c
index 3e0112157795..c0851a8e030c 100644
--- a/init/do_mounts.c
+++ b/init/do_mounts.c
@@ -186,7 +186,7 @@ dev_t name_to_dev_t(char *name)
 		goto done;
 
 	/*
-	 * try non-existant, but valid partition, which may only exist
+	 * try non-existent, but valid partition, which may only exist
 	 * after revalidating the disk, like partitioned md devices
 	 */
 	while (p > s && isdigit(p[-1]))
diff --git a/ipc/msg.c b/ipc/msg.c
index 0e732e92e22f..7385de25788a 100644
--- a/ipc/msg.c
+++ b/ipc/msg.c
@@ -704,7 +704,7 @@ long do_msgsnd(int msqid, long mtype, void __user *mtext,
 	msq->q_stime = get_seconds();
 
 	if (!pipelined_send(msq, msg)) {
-		/* noone is waiting for this message, enqueue it */
+		/* no one is waiting for this message, enqueue it */
 		list_add_tail(&msg->m_list, &msq->q_messages);
 		msq->q_cbytes += msgsz;
 		msq->q_qnum++;
@@ -842,7 +842,7 @@ long do_msgrcv(int msqid, long *pmtype, void __user *mtext,
 		 * Disable preemption.  We don't hold a reference to the queue
 		 * and getting a reference would defeat the idea of a lockless
 		 * operation, thus the code relies on rcu to guarantee the
-		 * existance of msq:
+		 * existence of msq:
 		 * Prior to destruction, expunge_all(-EIRDM) changes r_msg.
 		 * Thus if r_msg is -EAGAIN, then the queue not yet destroyed.
 		 * rcu_read_lock() prevents preemption between reading r_msg
diff --git a/ipc/namespace.c b/ipc/namespace.c
index 3c3e5223e7e5..8054c8e5faf1 100644
--- a/ipc/namespace.c
+++ b/ipc/namespace.c
@@ -104,7 +104,6 @@ static void free_ipc_ns(struct ipc_namespace *ns)
 	sem_exit_ns(ns);
 	msg_exit_ns(ns);
 	shm_exit_ns(ns);
-	kfree(ns);
 	atomic_dec(&nr_ipc_ns);
 
 	/*
@@ -113,6 +112,7 @@ static void free_ipc_ns(struct ipc_namespace *ns)
 	 */
 	ipcns_notify(IPCNS_REMOVED);
 	put_user_ns(ns->user_ns);
+	kfree(ns);
 }
 
 /*
diff --git a/ipc/sem.c b/ipc/sem.c
index ae040a0727c2..34193ed69fbe 100644
--- a/ipc/sem.c
+++ b/ipc/sem.c
@@ -1362,7 +1362,7 @@ SYSCALL_DEFINE4(semtimedop, int, semid, struct sembuf __user *, tsops,
 	 * semid identifiers are not unique - find_alloc_undo may have
 	 * allocated an undo structure, it was invalidated by an RMID
 	 * and now a new array with received the same id. Check and fail.
-	 * This case can be detected checking un->semid. The existance of
+	 * This case can be detected checking un->semid. The existence of
 	 * "un" itself is guaranteed by rcu.
 	 */
 	error = -EIDRM;
diff --git a/ipc/shm.c b/ipc/shm.c
index 8644452f5c4c..729acb7e3148 100644
--- a/ipc/shm.c
+++ b/ipc/shm.c
@@ -1056,7 +1056,7 @@ SYSCALL_DEFINE1(shmdt, char __user *, shmaddr)
 	/*
 	 * We need look no further than the maximum address a fragment
 	 * could possibly have landed at. Also cast things to loff_t to
-	 * prevent overflows and make comparisions vs. equal-width types.
+	 * prevent overflows and make comparisons vs. equal-width types.
 	 */
 	size = PAGE_ALIGN(size);
 	while (vma && (loff_t)(vma->vm_end - addr) <= size) {
diff --git a/ipc/util.c b/ipc/util.c
index 8fd1b891ec0c..5c0d28921ba8 100644
--- a/ipc/util.c
+++ b/ipc/util.c
@@ -317,6 +317,7 @@ retry:
 
 /**
  *	ipc_check_perms	-	check security and permissions for an IPC
+ *	@ns: IPC namespace
  *	@ipcp: ipc permission set
  *	@ops: the actual security routine to call
  *	@params: its parameters
@@ -607,6 +608,7 @@ void ipc_rcu_putref(void *ptr)
 
 /**
  *	ipcperms	-	check IPC permissions
+ *	@ns: IPC namespace
  *	@ipcp: IPC permission set
  *	@flag: desired permission set.
  *
@@ -769,7 +771,7 @@ void ipc_update_perm(struct ipc64_perm *in, struct kern_ipc_perm *out)
 
 /**
  * ipcctl_pre_down - retrieve an ipc and check permissions for some IPC_XXX cmd
- * @ids:  the ipc namespace
+ * @ns:  the ipc namespace
  * @ids:  the table of ids where to look for the ipc
  * @id:   the id of the ipc to retrieve
  * @cmd:  the cmd to check
diff --git a/kernel/audit_tree.c b/kernel/audit_tree.c
index 37b2bea170c8..e99dda04b126 100644
--- a/kernel/audit_tree.c
+++ b/kernel/audit_tree.c
@@ -607,7 +607,7 @@ void audit_trim_trees(void)
 		spin_lock(&hash_lock);
 		list_for_each_entry(node, &tree->chunks, list) {
 			struct audit_chunk *chunk = find_chunk(node);
-			/* this could be NULL if the watch is dieing else where... */
+			/* this could be NULL if the watch is dying else where... */
 			struct inode *inode = chunk->mark.i.inode;
 			node->index |= 1U<<31;
 			if (iterate_mounts(compare_root, inode, root_mnt))
diff --git a/kernel/auditsc.c b/kernel/auditsc.c
index f49a0318c2ed..b33513a08beb 100644
--- a/kernel/auditsc.c
+++ b/kernel/auditsc.c
@@ -1011,7 +1011,7 @@ static int audit_log_pid_context(struct audit_context *context, pid_t pid,
 /*
  * to_send and len_sent accounting are very loose estimates.  We aren't
  * really worried about a hard cap to MAX_EXECVE_AUDIT_LEN so much as being
- * within about 500 bytes (next page boundry)
+ * within about 500 bytes (next page boundary)
  *
  * why snprintf?  an int is up to 12 digits long.  if we just assumed when
  * logging that a[%d]= was going to be 16 characters long we would be wasting
diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index e31b220a743d..25c7eb52de1a 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -157,7 +157,7 @@ struct css_id {
 };
 
 /*
- * cgroup_event represents events which userspace want to recieve.
+ * cgroup_event represents events which userspace want to receive.
  */
 struct cgroup_event {
 	/*
diff --git a/kernel/cpu.c b/kernel/cpu.c
index c95fc4df0faa..12b7458f23b1 100644
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -126,7 +126,7 @@ static void cpu_hotplug_done(void)
 #else /* #if CONFIG_HOTPLUG_CPU */
 static void cpu_hotplug_begin(void) {}
 static void cpu_hotplug_done(void) {}
-#endif	/* #esle #if CONFIG_HOTPLUG_CPU */
+#endif	/* #else #if CONFIG_HOTPLUG_CPU */
 
 /* Need to know about CPUs going up/down? */
 int __ref register_cpu_notifier(struct notifier_block *nb)
diff --git a/kernel/debug/debug_core.c b/kernel/debug/debug_core.c
index cefd4a11f6d9..bad6786dee88 100644
--- a/kernel/debug/debug_core.c
+++ b/kernel/debug/debug_core.c
@@ -538,7 +538,7 @@ return_normal:
 
 	/*
 	 * For single stepping, try to only enter on the processor
-	 * that was single stepping.  To gaurd against a deadlock, the
+	 * that was single stepping.  To guard against a deadlock, the
 	 * kernel will only try for the value of sstep_tries before
 	 * giving up and continuing on.
 	 */
diff --git a/kernel/debug/kdb/kdb_main.c b/kernel/debug/kdb/kdb_main.c
index bd3e8e29caa3..be14779bcef6 100644
--- a/kernel/debug/kdb/kdb_main.c
+++ b/kernel/debug/kdb/kdb_main.c
@@ -78,7 +78,7 @@ static unsigned int kdb_continue_catastrophic;
 static kdbtab_t *kdb_commands;
 #define KDB_BASE_CMD_MAX 50
 static int kdb_max_commands = KDB_BASE_CMD_MAX;
-static kdbtab_t kdb_base_commands[50];
+static kdbtab_t kdb_base_commands[KDB_BASE_CMD_MAX];
 #define for_each_kdbcmd(cmd, num)					\
 	for ((cmd) = kdb_base_commands, (num) = 0;			\
 	     num < kdb_max_commands;					\
@@ -441,9 +441,9 @@ static int kdb_check_regs(void)
  *	symbol name, and offset to the caller.
  *
  *	The argument may consist of a numeric value (decimal or
- *	hexidecimal), a symbol name, a register name (preceeded by the
+ *	hexidecimal), a symbol name, a register name (preceded by the
  *	percent sign), an environment variable with a numeric value
- *	(preceeded by a dollar sign) or a simple arithmetic expression
+ *	(preceded by a dollar sign) or a simple arithmetic expression
  *	consisting of a symbol name, +/-, and a numeric constant value
  *	(offset).
  * Parameters:
@@ -1335,7 +1335,7 @@ void kdb_print_state(const char *text, int value)
  *	error		The hardware-defined error code
  *	reason2		kdb's current reason code.
  *			Initially error but can change
- *			acording to kdb state.
+ *			according to kdb state.
  *	db_result	Result code from break or debug point.
  *	regs		The exception frame at time of fault/breakpoint.
  *			should always be valid.
@@ -2892,7 +2892,7 @@ static void __init kdb_inittab(void)
 	  "Send a signal to a process", 0, KDB_REPEAT_NONE);
 	kdb_register_repeat("summary", kdb_summary, "",
 	  "Summarize the system", 4, KDB_REPEAT_NONE);
-	kdb_register_repeat("per_cpu", kdb_per_cpu, "",
+	kdb_register_repeat("per_cpu", kdb_per_cpu, "<sym> [<bytes>] [<cpu>]",
 	  "Display per_cpu variables", 3, KDB_REPEAT_NONE);
 	kdb_register_repeat("grephelp", kdb_grep_help, "",
 	  "Display help on | grep", 0, KDB_REPEAT_NONE);
diff --git a/kernel/debug/kdb/kdb_support.c b/kernel/debug/kdb/kdb_support.c
index 6b2485dcb050..5532dd37aa86 100644
--- a/kernel/debug/kdb/kdb_support.c
+++ b/kernel/debug/kdb/kdb_support.c
@@ -545,7 +545,7 @@ int kdb_putword(unsigned long addr, unsigned long word, size_t size)
  *	Mask for process state.
  * Notes:
  *	The mask folds data from several sources into a single long value, so
- *	be carefull not to overlap the bits.  TASK_* bits are in the LSB,
+ *	be careful not to overlap the bits.  TASK_* bits are in the LSB,
  *	special cases like UNRUNNABLE are in the MSB.  As of 2.6.10-rc1 there
  *	is no overlap between TASK_* and EXIT_* but that may not always be
  *	true, so EXIT_* bits are shifted left 16 bits before being stored in
diff --git a/kernel/exit.c b/kernel/exit.c
index 6a488ad2dce5..f5d2f63bae0b 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -841,7 +841,7 @@ static void exit_notify(struct task_struct *tsk, int group_dead)
 	/* Let father know we died
 	 *
 	 * Thread signals are configurable, but you aren't going to use
-	 * that to send signals to arbitary processes.
+	 * that to send signals to arbitrary processes.
 	 * That stops right now.
 	 *
 	 * If the parent exec id doesn't match the exec id we saved
diff --git a/kernel/futex.c b/kernel/futex.c
index 6570c459f31c..dfb924ffe65b 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -782,8 +782,8 @@ static void __unqueue_futex(struct futex_q *q)
 {
 	struct futex_hash_bucket *hb;
 
-	if (WARN_ON(!q->lock_ptr || !spin_is_locked(q->lock_ptr)
-			|| plist_node_empty(&q->list)))
+	if (WARN_ON_SMP(!q->lock_ptr || !spin_is_locked(q->lock_ptr))
+	    || WARN_ON(plist_node_empty(&q->list)))
 		return;
 
 	hb = container_of(q->lock_ptr, struct futex_hash_bucket, lock);
diff --git a/kernel/irq/Kconfig b/kernel/irq/Kconfig
index 09bef82d74cb..c574f9a12c48 100644
--- a/kernel/irq/Kconfig
+++ b/kernel/irq/Kconfig
@@ -10,13 +10,6 @@ menu "IRQ subsystem"
 config GENERIC_HARDIRQS
        def_bool y
 
-# Select this to disable the deprecated stuff
-config GENERIC_HARDIRQS_NO_DEPRECATED
-       bool
-
-config GENERIC_HARDIRQS_NO_COMPAT
-       bool
-
 # Options selectable by the architecture code
 
 # Make sparse irq Kconfig switch below available
@@ -31,6 +24,10 @@ config GENERIC_IRQ_PROBE
 config GENERIC_IRQ_SHOW
        bool
 
+# Print level/edge extra information
+config GENERIC_IRQ_SHOW_LEVEL
+       bool
+
 # Support for delayed migration from interrupt context
 config GENERIC_PENDING_IRQ
 	bool
@@ -47,6 +44,10 @@ config HARDIRQS_SW_RESEND
 config IRQ_PREFLOW_FASTEOI
        bool
 
+# Edge style eoi based handler (cell)
+config IRQ_EDGE_EOI_HANDLER
+       bool
+
 # Support forced irq threading
 config IRQ_FORCED_THREADING
        bool
diff --git a/kernel/irq/autoprobe.c b/kernel/irq/autoprobe.c
index 394784c57060..342d8f44e401 100644
--- a/kernel/irq/autoprobe.c
+++ b/kernel/irq/autoprobe.c
@@ -70,10 +70,8 @@ unsigned long probe_irq_on(void)
 		raw_spin_lock_irq(&desc->lock);
 		if (!desc->action && irq_settings_can_probe(desc)) {
 			desc->istate |= IRQS_AUTODETECT | IRQS_WAITING;
-			if (irq_startup(desc)) {
-				irq_compat_set_pending(desc);
+			if (irq_startup(desc))
 				desc->istate |= IRQS_PENDING;
-			}
 		}
 		raw_spin_unlock_irq(&desc->lock);
 	}
diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
index c9c0601f0615..4af1e2b244cb 100644
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -34,9 +34,14 @@ int irq_set_chip(unsigned int irq, struct irq_chip *chip)
 	if (!chip)
 		chip = &no_irq_chip;
 
-	irq_chip_set_defaults(chip);
 	desc->irq_data.chip = chip;
 	irq_put_desc_unlock(desc, flags);
+	/*
+	 * For !CONFIG_SPARSE_IRQ make the irq show up in
+	 * allocated_irqs. For the CONFIG_SPARSE_IRQ case, it is
+	 * already marked, and this call is harmless.
+	 */
+	irq_reserve_irq(irq);
 	return 0;
 }
 EXPORT_SYMBOL(irq_set_chip);
@@ -134,26 +139,22 @@ EXPORT_SYMBOL_GPL(irq_get_irq_data);
 
 static void irq_state_clr_disabled(struct irq_desc *desc)
 {
-	desc->istate &= ~IRQS_DISABLED;
-	irq_compat_clr_disabled(desc);
+	irqd_clear(&desc->irq_data, IRQD_IRQ_DISABLED);
 }
 
 static void irq_state_set_disabled(struct irq_desc *desc)
 {
-	desc->istate |= IRQS_DISABLED;
-	irq_compat_set_disabled(desc);
+	irqd_set(&desc->irq_data, IRQD_IRQ_DISABLED);
 }
 
 static void irq_state_clr_masked(struct irq_desc *desc)
 {
-	desc->istate &= ~IRQS_MASKED;
-	irq_compat_clr_masked(desc);
+	irqd_clear(&desc->irq_data, IRQD_IRQ_MASKED);
 }
 
 static void irq_state_set_masked(struct irq_desc *desc)
 {
-	desc->istate |= IRQS_MASKED;
-	irq_compat_set_masked(desc);
+	irqd_set(&desc->irq_data, IRQD_IRQ_MASKED);
 }
 
 int irq_startup(struct irq_desc *desc)
@@ -203,126 +204,6 @@ void irq_disable(struct irq_desc *desc)
 	}
 }
 
-#ifndef CONFIG_GENERIC_HARDIRQS_NO_DEPRECATED
-/* Temporary migration helpers */
-static void compat_irq_mask(struct irq_data *data)
-{
-	data->chip->mask(data->irq);
-}
-
-static void compat_irq_unmask(struct irq_data *data)
-{
-	data->chip->unmask(data->irq);
-}
-
-static void compat_irq_ack(struct irq_data *data)
-{
-	data->chip->ack(data->irq);
-}
-
-static void compat_irq_mask_ack(struct irq_data *data)
-{
-	data->chip->mask_ack(data->irq);
-}
-
-static void compat_irq_eoi(struct irq_data *data)
-{
-	data->chip->eoi(data->irq);
-}
-
-static void compat_irq_enable(struct irq_data *data)
-{
-	data->chip->enable(data->irq);
-}
-
-static void compat_irq_disable(struct irq_data *data)
-{
-	data->chip->disable(data->irq);
-}
-
-static void compat_irq_shutdown(struct irq_data *data)
-{
-	data->chip->shutdown(data->irq);
-}
-
-static unsigned int compat_irq_startup(struct irq_data *data)
-{
-	return data->chip->startup(data->irq);
-}
-
-static int compat_irq_set_affinity(struct irq_data *data,
-				   const struct cpumask *dest, bool force)
-{
-	return data->chip->set_affinity(data->irq, dest);
-}
-
-static int compat_irq_set_type(struct irq_data *data, unsigned int type)
-{
-	return data->chip->set_type(data->irq, type);
-}
-
-static int compat_irq_set_wake(struct irq_data *data, unsigned int on)
-{
-	return data->chip->set_wake(data->irq, on);
-}
-
-static int compat_irq_retrigger(struct irq_data *data)
-{
-	return data->chip->retrigger(data->irq);
-}
-
-static void compat_bus_lock(struct irq_data *data)
-{
-	data->chip->bus_lock(data->irq);
-}
-
-static void compat_bus_sync_unlock(struct irq_data *data)
-{
-	data->chip->bus_sync_unlock(data->irq);
-}
-#endif
-
-/*
- * Fixup enable/disable function pointers
- */
-void irq_chip_set_defaults(struct irq_chip *chip)
-{
-#ifndef CONFIG_GENERIC_HARDIRQS_NO_DEPRECATED
-	if (chip->enable)
-		chip->irq_enable = compat_irq_enable;
-	if (chip->disable)
-		chip->irq_disable = compat_irq_disable;
-	if (chip->shutdown)
-		chip->irq_shutdown = compat_irq_shutdown;
-	if (chip->startup)
-		chip->irq_startup = compat_irq_startup;
-	if (!chip->end)
-		chip->end = dummy_irq_chip.end;
-	if (chip->bus_lock)
-		chip->irq_bus_lock = compat_bus_lock;
-	if (chip->bus_sync_unlock)
-		chip->irq_bus_sync_unlock = compat_bus_sync_unlock;
-	if (chip->mask)
-		chip->irq_mask = compat_irq_mask;
-	if (chip->unmask)
-		chip->irq_unmask = compat_irq_unmask;
-	if (chip->ack)
-		chip->irq_ack = compat_irq_ack;
-	if (chip->mask_ack)
-		chip->irq_mask_ack = compat_irq_mask_ack;
-	if (chip->eoi)
-		chip->irq_eoi = compat_irq_eoi;
-	if (chip->set_affinity)
-		chip->irq_set_affinity = compat_irq_set_affinity;
-	if (chip->set_type)
-		chip->irq_set_type = compat_irq_set_type;
-	if (chip->set_wake)
-		chip->irq_set_wake = compat_irq_set_wake;
-	if (chip->retrigger)
-		chip->irq_retrigger = compat_irq_retrigger;
-#endif
-}
-
 static inline void mask_ack_irq(struct irq_desc *desc)
 {
 	if (desc->irq_data.chip->irq_mask_ack)
@@ -372,11 +253,10 @@ void handle_nested_irq(unsigned int irq)
 	kstat_incr_irqs_this_cpu(irq, desc);
 
 	action = desc->action;
-	if (unlikely(!action || (desc->istate & IRQS_DISABLED)))
+	if (unlikely(!action || irqd_irq_disabled(&desc->irq_data)))
 		goto out_unlock;
 
-	irq_compat_set_progress(desc);
-	desc->istate |= IRQS_INPROGRESS;
+	irqd_set(&desc->irq_data, IRQD_IRQ_INPROGRESS);
 	raw_spin_unlock_irq(&desc->lock);
 
 	action_ret = action->thread_fn(action->irq, action->dev_id);
@@ -384,8 +264,7 @@ void handle_nested_irq(unsigned int irq)
 		note_interrupt(irq, desc, action_ret);
 
 	raw_spin_lock_irq(&desc->lock);
-	desc->istate &= ~IRQS_INPROGRESS;
-	irq_compat_clr_progress(desc);
+	irqd_clear(&desc->irq_data, IRQD_IRQ_INPROGRESS);
 
 out_unlock:
 	raw_spin_unlock_irq(&desc->lock);
@@ -416,14 +295,14 @@ handle_simple_irq(unsigned int irq, struct irq_desc *desc)
 {
 	raw_spin_lock(&desc->lock);
 
-	if (unlikely(desc->istate & IRQS_INPROGRESS))
+	if (unlikely(irqd_irq_inprogress(&desc->irq_data)))
 		if (!irq_check_poll(desc))
 			goto out_unlock;
 
 	desc->istate &= ~(IRQS_REPLAY | IRQS_WAITING);
 	kstat_incr_irqs_this_cpu(irq, desc);
 
-	if (unlikely(!desc->action || (desc->istate & IRQS_DISABLED)))
+	if (unlikely(!desc->action || irqd_irq_disabled(&desc->irq_data)))
 		goto out_unlock;
 
 	handle_irq_event(desc);
@@ -448,7 +327,7 @@ handle_level_irq(unsigned int irq, struct irq_desc *desc)
 	raw_spin_lock(&desc->lock);
 	mask_ack_irq(desc);
 
-	if (unlikely(desc->istate & IRQS_INPROGRESS))
+	if (unlikely(irqd_irq_inprogress(&desc->irq_data)))
 		if (!irq_check_poll(desc))
 			goto out_unlock;
 
@@ -459,12 +338,12 @@ handle_level_irq(unsigned int irq, struct irq_desc *desc)
 	 * If its disabled or no action available
 	 * keep it masked and get out of here
 	 */
-	if (unlikely(!desc->action || (desc->istate & IRQS_DISABLED)))
+	if (unlikely(!desc->action || irqd_irq_disabled(&desc->irq_data)))
 		goto out_unlock;
 
 	handle_irq_event(desc);
 
-	if (!(desc->istate & (IRQS_DISABLED | IRQS_ONESHOT)))
+	if (!irqd_irq_disabled(&desc->irq_data) && !(desc->istate & IRQS_ONESHOT))
 		unmask_irq(desc);
 out_unlock:
 	raw_spin_unlock(&desc->lock);
@@ -496,7 +375,7 @@ handle_fasteoi_irq(unsigned int irq, struct irq_desc *desc)
 {
 	raw_spin_lock(&desc->lock);
 
-	if (unlikely(desc->istate & IRQS_INPROGRESS))
+	if (unlikely(irqd_irq_inprogress(&desc->irq_data)))
 		if (!irq_check_poll(desc))
 			goto out;
 
@@ -507,8 +386,7 @@ handle_fasteoi_irq(unsigned int irq, struct irq_desc *desc)
 	 * If its disabled or no action available
 	 * then mask it and get out of here:
 	 */
-	if (unlikely(!desc->action || (desc->istate & IRQS_DISABLED))) {
-		irq_compat_set_pending(desc);
+	if (unlikely(!desc->action || irqd_irq_disabled(&desc->irq_data))) {
 		desc->istate |= IRQS_PENDING;
 		mask_irq(desc);
 		goto out;
@@ -537,7 +415,7 @@ out:
  *	@desc:	the interrupt description structure for this irq
  *
  *	Interrupt occures on the falling and/or rising edge of a hardware
- *	signal. The occurence is latched into the irq controller hardware
+ *	signal. The occurrence is latched into the irq controller hardware
  *	and must be acked in order to be reenabled. After the ack another
  *	interrupt can happen on the same source even before the first one
  *	is handled by the associated event handler. If this happens it
@@ -558,10 +436,9 @@ handle_edge_irq(unsigned int irq, struct irq_desc *desc)
 	 * we shouldn't process the IRQ. Mark it pending, handle
 	 * the necessary masking and go out
 	 */
-	if (unlikely((desc->istate & (IRQS_DISABLED | IRQS_INPROGRESS) ||
-		      !desc->action))) {
+	if (unlikely(irqd_irq_disabled(&desc->irq_data) ||
+		     irqd_irq_inprogress(&desc->irq_data) || !desc->action)) {
 		if (!irq_check_poll(desc)) {
-			irq_compat_set_pending(desc);
 			desc->istate |= IRQS_PENDING;
 			mask_ack_irq(desc);
 			goto out_unlock;
@@ -584,20 +461,65 @@ handle_edge_irq(unsigned int irq, struct irq_desc *desc)
 		 * Renable it, if it was not disabled in meantime.
 		 */
 		if (unlikely(desc->istate & IRQS_PENDING)) {
-			if (!(desc->istate & IRQS_DISABLED) &&
-			    (desc->istate & IRQS_MASKED))
+			if (!irqd_irq_disabled(&desc->irq_data) &&
+			    irqd_irq_masked(&desc->irq_data))
 				unmask_irq(desc);
 		}
 
 		handle_irq_event(desc);
 
 	} while ((desc->istate & IRQS_PENDING) &&
-		 !(desc->istate & IRQS_DISABLED));
+		 !irqd_irq_disabled(&desc->irq_data));
 
 out_unlock:
 	raw_spin_unlock(&desc->lock);
 }
 
+#ifdef CONFIG_IRQ_EDGE_EOI_HANDLER
+/**
+ *	handle_edge_eoi_irq - edge eoi type IRQ handler
+ *	@irq:	the interrupt number
+ *	@desc:	the interrupt description structure for this irq
+ *
+ * Similar as the above handle_edge_irq, but using eoi and w/o the
+ * mask/unmask logic.
+ */
+void handle_edge_eoi_irq(unsigned int irq, struct irq_desc *desc)
+{
+	struct irq_chip *chip = irq_desc_get_chip(desc);
+
+	raw_spin_lock(&desc->lock);
+
+	desc->istate &= ~(IRQS_REPLAY | IRQS_WAITING);
+	/*
+	 * If we're currently running this IRQ, or its disabled,
+	 * we shouldn't process the IRQ. Mark it pending, handle
+	 * the necessary masking and go out
+	 */
+	if (unlikely(irqd_irq_disabled(&desc->irq_data) ||
+		     irqd_irq_inprogress(&desc->irq_data) || !desc->action)) {
+		if (!irq_check_poll(desc)) {
+			desc->istate |= IRQS_PENDING;
+			goto out_eoi;
+		}
+	}
+	kstat_incr_irqs_this_cpu(irq, desc);
+
+	do {
+		if (unlikely(!desc->action))
+			goto out_eoi;
+
+		handle_irq_event(desc);
+
+	} while ((desc->istate & IRQS_PENDING) &&
+		 !irqd_irq_disabled(&desc->irq_data));
+
+out_eoi:
+	chip->irq_eoi(&desc->irq_data);
+	raw_spin_unlock(&desc->lock);
+}
+#endif
+
 /**
  *	handle_percpu_irq - Per CPU local irq handler
  *	@irq:	the interrupt number
@@ -642,8 +564,7 @@ __irq_set_handler(unsigned int irq, irq_flow_handler_t handle, int is_chained,
 	if (handle == handle_bad_irq) {
 		if (desc->irq_data.chip != &no_irq_chip)
 			mask_ack_irq(desc);
-		irq_compat_set_disabled(desc);
-		desc->istate |= IRQS_DISABLED;
+		irq_state_set_disabled(desc);
 		desc->depth = 1;
 	}
 	desc->handle_irq = handle;
@@ -684,8 +605,70 @@ void irq_modify_status(unsigned int irq, unsigned long clr, unsigned long set)
 		irqd_set(&desc->irq_data, IRQD_PER_CPU);
 	if (irq_settings_can_move_pcntxt(desc))
 		irqd_set(&desc->irq_data, IRQD_MOVE_PCNTXT);
+	if (irq_settings_is_level(desc))
+		irqd_set(&desc->irq_data, IRQD_LEVEL);
 
 	irqd_set(&desc->irq_data, irq_settings_get_trigger_mask(desc));
 
 	irq_put_desc_unlock(desc, flags);
 }
+
+/**
+ *	irq_cpu_online - Invoke all irq_cpu_online functions.
+ *
+ *	Iterate through all irqs and invoke the chip.irq_cpu_online()
+ *	for each.
+ */
+void irq_cpu_online(void)
+{
+	struct irq_desc *desc;
+	struct irq_chip *chip;
+	unsigned long flags;
+	unsigned int irq;
+
+	for_each_active_irq(irq) {
+		desc = irq_to_desc(irq);
+		if (!desc)
+			continue;
+
+		raw_spin_lock_irqsave(&desc->lock, flags);
+
+		chip = irq_data_get_irq_chip(&desc->irq_data);
+		if (chip && chip->irq_cpu_online &&
+		    (!(chip->flags & IRQCHIP_ONOFFLINE_ENABLED) ||
+		     !irqd_irq_disabled(&desc->irq_data)))
+			chip->irq_cpu_online(&desc->irq_data);
+
+		raw_spin_unlock_irqrestore(&desc->lock, flags);
+	}
+}
+
+/**
+ *	irq_cpu_offline - Invoke all irq_cpu_offline functions.
+ *
+ *	Iterate through all irqs and invoke the chip.irq_cpu_offline()
+ *	for each.
+ */
+void irq_cpu_offline(void)
+{
+	struct irq_desc *desc;
+	struct irq_chip *chip;
+	unsigned long flags;
+	unsigned int irq;
+
+	for_each_active_irq(irq) {
+		desc = irq_to_desc(irq);
+		if (!desc)
+			continue;
+
+		raw_spin_lock_irqsave(&desc->lock, flags);
+
+		chip = irq_data_get_irq_chip(&desc->irq_data);
+		if (chip && chip->irq_cpu_offline &&
+		    (!(chip->flags & IRQCHIP_ONOFFLINE_ENABLED) ||
+		     !irqd_irq_disabled(&desc->irq_data)))
+			chip->irq_cpu_offline(&desc->irq_data);
+
+		raw_spin_unlock_irqrestore(&desc->lock, flags);
+	}
+}
diff --git a/kernel/irq/compat.h b/kernel/irq/compat.h
deleted file mode 100644
index 6bbaf66aca85..000000000000
--- a/kernel/irq/compat.h
+++ /dev/null
@@ -1,72 +0,0 @@
-/*
- * Compat layer for transition period
- */
-#ifndef CONFIG_GENERIC_HARDIRQS_NO_COMPAT
-static inline void irq_compat_set_progress(struct irq_desc *desc)
-{
-	desc->status |= IRQ_INPROGRESS;
-}
-
-static inline void irq_compat_clr_progress(struct irq_desc *desc)
-{
-	desc->status &= ~IRQ_INPROGRESS;
-}
-static inline void irq_compat_set_disabled(struct irq_desc *desc)
-{
-	desc->status |= IRQ_DISABLED;
-}
-static inline void irq_compat_clr_disabled(struct irq_desc *desc)
-{
-	desc->status &= ~IRQ_DISABLED;
-}
-static inline void irq_compat_set_pending(struct irq_desc *desc)
-{
-	desc->status |= IRQ_PENDING;
-}
-
-static inline void irq_compat_clr_pending(struct irq_desc *desc)
-{
-	desc->status &= ~IRQ_PENDING;
-}
-static inline void irq_compat_set_masked(struct irq_desc *desc)
-{
-	desc->status |= IRQ_MASKED;
-}
-
-static inline void irq_compat_clr_masked(struct irq_desc *desc)
-{
-	desc->status &= ~IRQ_MASKED;
-}
-static inline void irq_compat_set_move_pending(struct irq_desc *desc)
-{
-	desc->status |= IRQ_MOVE_PENDING;
-}
-
-static inline void irq_compat_clr_move_pending(struct irq_desc *desc)
-{
-	desc->status &= ~IRQ_MOVE_PENDING;
-}
-static inline void irq_compat_set_affinity(struct irq_desc *desc)
-{
-	desc->status |= IRQ_AFFINITY_SET;
-}
-
-static inline void irq_compat_clr_affinity(struct irq_desc *desc)
-{
-	desc->status &= ~IRQ_AFFINITY_SET;
-}
-#else
-static inline void irq_compat_set_progress(struct irq_desc *desc) { }
-static inline void irq_compat_clr_progress(struct irq_desc *desc) { }
-static inline void irq_compat_set_disabled(struct irq_desc *desc) { }
-static inline void irq_compat_clr_disabled(struct irq_desc *desc) { }
-static inline void irq_compat_set_pending(struct irq_desc *desc) { }
-static inline void irq_compat_clr_pending(struct irq_desc *desc) { }
-static inline void irq_compat_set_masked(struct irq_desc *desc) { }
-static inline void irq_compat_clr_masked(struct irq_desc *desc) { }
-static inline void irq_compat_set_move_pending(struct irq_desc *desc) { }
-static inline void irq_compat_clr_move_pending(struct irq_desc *desc) { }
-static inline void irq_compat_set_affinity(struct irq_desc *desc) { }
-static inline void irq_compat_clr_affinity(struct irq_desc *desc) { }
-#endif
-
diff --git a/kernel/irq/debug.h b/kernel/irq/debug.h
index d1a33b7fa61d..306cba37e9a5 100644
--- a/kernel/irq/debug.h
+++ b/kernel/irq/debug.h
@@ -4,8 +4,10 @@
 
 #include <linux/kallsyms.h>
 
-#define P(f) if (desc->status & f) printk("%14s set\n", #f)
+#define P(f) if (desc->status_use_accessors & f) printk("%14s set\n", #f)
 #define PS(f) if (desc->istate & f) printk("%14s set\n", #f)
+/* FIXME */
+#define PD(f) do { } while (0)
 
 static inline void print_irq_desc(unsigned int irq, struct irq_desc *desc)
 {
@@ -28,13 +30,15 @@ static inline void print_irq_desc(unsigned int irq, struct irq_desc *desc)
 	P(IRQ_NOAUTOEN);
 
 	PS(IRQS_AUTODETECT);
-	PS(IRQS_INPROGRESS);
 	PS(IRQS_REPLAY);
 	PS(IRQS_WAITING);
-	PS(IRQS_DISABLED);
 	PS(IRQS_PENDING);
-	PS(IRQS_MASKED);
+
+	PD(IRQS_INPROGRESS);
+	PD(IRQS_DISABLED);
+	PD(IRQS_MASKED);
 }
 
 #undef P
 #undef PS
+#undef PD
diff --git a/kernel/irq/dummychip.c b/kernel/irq/dummychip.c
index 20dc5474947e..b5fcd96c7102 100644
--- a/kernel/irq/dummychip.c
+++ b/kernel/irq/dummychip.c
@@ -31,13 +31,6 @@ static unsigned int noop_ret(struct irq_data *data)
 	return 0;
 }
 
-#ifndef CONFIG_GENERIC_HARDIRQS_NO_DEPRECATED
-static void compat_noop(unsigned int irq) { }
-#define END_INIT .end = compat_noop
-#else
-#define END_INIT
-#endif
-
 /*
  * Generic no controller implementation
  */
@@ -48,7 +41,6 @@ struct irq_chip no_irq_chip = {
 	.irq_enable	= noop,
 	.irq_disable	= noop,
 	.irq_ack	= ack_bad,
-	END_INIT
 };
 
 /*
@@ -64,5 +56,4 @@ struct irq_chip dummy_irq_chip = {
 	.irq_ack	= noop,
 	.irq_mask	= noop,
 	.irq_unmask	= noop,
-	END_INIT
 };
diff --git a/kernel/irq/handle.c b/kernel/irq/handle.c
index 517561fc7317..90cb55f6d7eb 100644
--- a/kernel/irq/handle.c
+++ b/kernel/irq/handle.c
@@ -175,28 +175,13 @@ irqreturn_t handle_irq_event(struct irq_desc *desc)
 	struct irqaction *action = desc->action;
 	irqreturn_t ret;
 
-	irq_compat_clr_pending(desc);
 	desc->istate &= ~IRQS_PENDING;
-	irq_compat_set_progress(desc);
-	desc->istate |= IRQS_INPROGRESS;
+	irqd_set(&desc->irq_data, IRQD_IRQ_INPROGRESS);
 	raw_spin_unlock(&desc->lock);
 
 	ret = handle_irq_event_percpu(desc, action);
 
 	raw_spin_lock(&desc->lock);
-	desc->istate &= ~IRQS_INPROGRESS;
-	irq_compat_clr_progress(desc);
+	irqd_clear(&desc->irq_data, IRQD_IRQ_INPROGRESS);
 	return ret;
 }
-
-/**
- * handle_IRQ_event - irq action chain handler
- * @irq:	the interrupt number
- * @action:	the interrupt action chain for this irq
- *
- * Handles the action chain of an irq event
- */
-irqreturn_t handle_IRQ_event(unsigned int irq, struct irqaction *action)
-{
-	return handle_irq_event_percpu(irq_to_desc(irq), action);
-}
diff --git a/kernel/irq/internals.h b/kernel/irq/internals.h
index 6c6ec9a49027..6546431447d7 100644
--- a/kernel/irq/internals.h
+++ b/kernel/irq/internals.h
@@ -15,10 +15,6 @@
 
 #define istate core_internal_state__do_not_mess_with_it
 
-#ifdef CONFIG_GENERIC_HARDIRQS_NO_COMPAT
-# define status status_use_accessors
-#endif
-
 extern int noirqdebug;
 
 /*
@@ -44,38 +40,28 @@ enum {
  * IRQS_SPURIOUS_DISABLED	- was disabled due to spurious interrupt
  *				  detection
  * IRQS_POLL_INPROGRESS		- polling in progress
- * IRQS_INPROGRESS		- Interrupt in progress
  * IRQS_ONESHOT			- irq is not unmasked in primary handler
  * IRQS_REPLAY			- irq is replayed
  * IRQS_WAITING			- irq is waiting
- * IRQS_DISABLED		- irq is disabled
  * IRQS_PENDING			- irq is pending and replayed later
- * IRQS_MASKED			- irq is masked
  * IRQS_SUSPENDED		- irq is suspended
  */
 enum {
 	IRQS_AUTODETECT		= 0x00000001,
 	IRQS_SPURIOUS_DISABLED	= 0x00000002,
 	IRQS_POLL_INPROGRESS	= 0x00000008,
-	IRQS_INPROGRESS		= 0x00000010,
 	IRQS_ONESHOT		= 0x00000020,
 	IRQS_REPLAY		= 0x00000040,
 	IRQS_WAITING		= 0x00000080,
-	IRQS_DISABLED		= 0x00000100,
 	IRQS_PENDING		= 0x00000200,
-	IRQS_MASKED		= 0x00000400,
 	IRQS_SUSPENDED		= 0x00000800,
 };
 
-#include "compat.h"
 #include "debug.h"
 #include "settings.h"
 
 #define irq_data_to_desc(data)	container_of(data, struct irq_desc, irq_data)
 
-/* Set default functions for irq_chip structures: */
-extern void irq_chip_set_defaults(struct irq_chip *chip);
-
 extern int __irq_set_trigger(struct irq_desc *desc, unsigned int irq,
 		unsigned long flags);
 extern void __disable_irq(struct irq_desc *desc, unsigned int irq, bool susp);
@@ -162,13 +148,11 @@ irq_put_desc_unlock(struct irq_desc *desc, unsigned long flags)
 static inline void irqd_set_move_pending(struct irq_data *d)
 {
 	d->state_use_accessors |= IRQD_SETAFFINITY_PENDING;
-	irq_compat_set_move_pending(irq_data_to_desc(d));
 }
 
 static inline void irqd_clr_move_pending(struct irq_data *d)
 {
 	d->state_use_accessors &= ~IRQD_SETAFFINITY_PENDING;
-	irq_compat_clr_move_pending(irq_data_to_desc(d));
 }
 
 static inline void irqd_clear(struct irq_data *d, unsigned int mask)
diff --git a/kernel/irq/irqdesc.c b/kernel/irq/irqdesc.c
index dbccc799407f..2c039c9b9383 100644
--- a/kernel/irq/irqdesc.c
+++ b/kernel/irq/irqdesc.c
@@ -80,7 +80,7 @@ static void desc_set_defaults(unsigned int irq, struct irq_desc *desc, int node)
 	desc->irq_data.handler_data = NULL;
 	desc->irq_data.msi_desc = NULL;
 	irq_settings_clr_and_set(desc, ~0, _IRQ_DEFAULT_INIT_FLAGS);
-	desc->istate = IRQS_DISABLED;
+	irqd_set(&desc->irq_data, IRQD_IRQ_DISABLED);
 	desc->handle_irq = handle_bad_irq;
 	desc->depth = 1;
 	desc->irq_count = 0;
@@ -198,15 +198,6 @@ err:
 	return -ENOMEM;
 }
 
-struct irq_desc * __ref irq_to_desc_alloc_node(unsigned int irq, int node)
-{
-	int res = irq_alloc_descs(irq, irq, 1, node);
-
-	if (res == -EEXIST || res == irq)
-		return irq_to_desc(irq);
-	return NULL;
-}
-
 static int irq_expand_nr_irqs(unsigned int nr)
 {
 	if (nr > IRQ_BITMAP_BITS)
@@ -247,7 +238,6 @@ int __init early_irq_init(void)
 
 struct irq_desc irq_desc[NR_IRQS] __cacheline_aligned_in_smp = {
 	[0 ... NR_IRQS-1] = {
-		.istate		= IRQS_DISABLED,
 		.handle_irq	= handle_bad_irq,
 		.depth		= 1,
 		.lock		= __RAW_SPIN_LOCK_UNLOCKED(irq_desc->lock),
@@ -283,11 +273,6 @@ struct irq_desc *irq_to_desc(unsigned int irq)
 	return (irq < NR_IRQS) ? irq_desc + irq : NULL;
 }
 
-struct irq_desc *irq_to_desc_alloc_node(unsigned int irq, int node)
-{
-	return irq_to_desc(irq);
-}
-
 static void free_desc(unsigned int irq)
 {
 	dynamic_irq_cleanup(irq);
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index 0a2aa73e536c..07c1611f3899 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -41,7 +41,7 @@ early_param("threadirqs", setup_forced_irqthreads);
 void synchronize_irq(unsigned int irq)
 {
 	struct irq_desc *desc = irq_to_desc(irq);
-	unsigned int state;
+	bool inprogress;
 
 	if (!desc)
 		return;
@@ -53,16 +53,16 @@ void synchronize_irq(unsigned int irq)
 		 * Wait until we're out of the critical section.  This might
 		 * give the wrong answer due to the lack of memory barriers.
 		 */
-		while (desc->istate & IRQS_INPROGRESS)
+		while (irqd_irq_inprogress(&desc->irq_data))
 			cpu_relax();
 
 		/* Ok, that indicated we're done: double-check carefully. */
 		raw_spin_lock_irqsave(&desc->lock, flags);
-		state = desc->istate;
+		inprogress = irqd_irq_inprogress(&desc->irq_data);
 		raw_spin_unlock_irqrestore(&desc->lock, flags);
 
 		/* Oops, that failed? */
-	} while (state & IRQS_INPROGRESS);
+	} while (inprogress);
 
 	/*
 	 * We made sure that no hardirq handler is running. Now verify
@@ -112,13 +112,13 @@ void irq_set_thread_affinity(struct irq_desc *desc)
 }
 
 #ifdef CONFIG_GENERIC_PENDING_IRQ
-static inline bool irq_can_move_pcntxt(struct irq_desc *desc)
+static inline bool irq_can_move_pcntxt(struct irq_data *data)
 {
-	return irq_settings_can_move_pcntxt(desc);
+	return irqd_can_move_in_process_context(data);
 }
-static inline bool irq_move_pending(struct irq_desc *desc)
+static inline bool irq_move_pending(struct irq_data *data)
 {
-	return irqd_is_setaffinity_pending(&desc->irq_data);
+	return irqd_is_setaffinity_pending(data);
 }
 static inline void
 irq_copy_pending(struct irq_desc *desc, const struct cpumask *mask)
@@ -131,43 +131,34 @@ irq_get_pending(struct cpumask *mask, struct irq_desc *desc)
 	cpumask_copy(mask, desc->pending_mask);
 }
 #else
-static inline bool irq_can_move_pcntxt(struct irq_desc *desc) { return true; }
-static inline bool irq_move_pending(struct irq_desc *desc) { return false; }
+static inline bool irq_can_move_pcntxt(struct irq_data *data) { return true; }
+static inline bool irq_move_pending(struct irq_data *data) { return false; }
 static inline void
 irq_copy_pending(struct irq_desc *desc, const struct cpumask *mask) { }
 static inline void
 irq_get_pending(struct cpumask *mask, struct irq_desc *desc) { }
 #endif
 
-/**
- *	irq_set_affinity - Set the irq affinity of a given irq
- *	@irq:		Interrupt to set affinity
- *	@cpumask:	cpumask
- *
- */
-int irq_set_affinity(unsigned int irq, const struct cpumask *mask)
+int __irq_set_affinity_locked(struct irq_data *data, const struct cpumask *mask)
 {
-	struct irq_desc *desc = irq_to_desc(irq);
-	struct irq_chip *chip = desc->irq_data.chip;
-	unsigned long flags;
+	struct irq_chip *chip = irq_data_get_irq_chip(data);
+	struct irq_desc *desc = irq_data_to_desc(data);
 	int ret = 0;
 
-	if (!chip->irq_set_affinity)
+	if (!chip || !chip->irq_set_affinity)
 		return -EINVAL;
 
-	raw_spin_lock_irqsave(&desc->lock, flags);
-
-	if (irq_can_move_pcntxt(desc)) {
-		ret = chip->irq_set_affinity(&desc->irq_data, mask, false);
+	if (irq_can_move_pcntxt(data)) {
+		ret = chip->irq_set_affinity(data, mask, false);
 		switch (ret) {
 		case IRQ_SET_MASK_OK:
-			cpumask_copy(desc->irq_data.affinity, mask);
+			cpumask_copy(data->affinity, mask);
 		case IRQ_SET_MASK_OK_NOCOPY:
 			irq_set_thread_affinity(desc);
 			ret = 0;
 		}
 	} else {
-		irqd_set_move_pending(&desc->irq_data);
+		irqd_set_move_pending(data);
 		irq_copy_pending(desc, mask);
 	}
 
@@ -175,8 +166,28 @@ int irq_set_affinity(unsigned int irq, const struct cpumask *mask)
 		kref_get(&desc->affinity_notify->kref);
 		schedule_work(&desc->affinity_notify->work);
 	}
-	irq_compat_set_affinity(desc);
-	irqd_set(&desc->irq_data, IRQD_AFFINITY_SET);
+	irqd_set(data, IRQD_AFFINITY_SET);
+
+	return ret;
+}
+
+/**
+ *	irq_set_affinity - Set the irq affinity of a given irq
+ *	@irq:		Interrupt to set affinity
+ *	@mask:		cpumask
+ *
+ */
+int irq_set_affinity(unsigned int irq, const struct cpumask *mask)
+{
+	struct irq_desc *desc = irq_to_desc(irq);
+	unsigned long flags;
+	int ret;
+
+	if (!desc)
+		return -EINVAL;
+
+	raw_spin_lock_irqsave(&desc->lock, flags);
+	ret =  __irq_set_affinity_locked(irq_desc_get_irq_data(desc), mask);
 	raw_spin_unlock_irqrestore(&desc->lock, flags);
 	return ret;
 }
@@ -206,7 +217,7 @@ static void irq_affinity_notify(struct work_struct *work)
 		goto out;
 
 	raw_spin_lock_irqsave(&desc->lock, flags);
-	if (irq_move_pending(desc))
+	if (irq_move_pending(&desc->irq_data))
 		irq_get_pending(cpumask, desc);
 	else
 		cpumask_copy(cpumask, desc->irq_data.affinity);
@@ -285,10 +296,8 @@ setup_affinity(unsigned int irq, struct irq_desc *desc, struct cpumask *mask)
 		if (cpumask_intersects(desc->irq_data.affinity,
 				       cpu_online_mask))
 			set = desc->irq_data.affinity;
-		else {
-			irq_compat_clr_affinity(desc);
+		else
 			irqd_clear(&desc->irq_data, IRQD_AFFINITY_SET);
-		}
 	}
 
 	cpumask_and(mask, cpu_online_mask, set);
@@ -551,9 +560,9 @@ int __irq_set_trigger(struct irq_desc *desc, unsigned int irq,
 	flags &= IRQ_TYPE_SENSE_MASK;
 
 	if (chip->flags & IRQCHIP_SET_TYPE_MASKED) {
-		if (!(desc->istate & IRQS_MASKED))
+		if (!irqd_irq_masked(&desc->irq_data))
 			mask_irq(desc);
-		if (!(desc->istate & IRQS_DISABLED))
+		if (!irqd_irq_disabled(&desc->irq_data))
 			unmask = 1;
 	}
 
@@ -575,8 +584,6 @@ int __irq_set_trigger(struct irq_desc *desc, unsigned int irq,
 			irqd_set(&desc->irq_data, IRQD_LEVEL);
 		}
 
-		if (chip != desc->irq_data.chip)
-			irq_chip_set_defaults(desc->irq_data.chip);
 		ret = 0;
 		break;
 	default:
@@ -651,7 +658,7 @@ again:
 	 * irq_wake_thread(). See the comment there which explains the
 	 * serialization.
 	 */
-	if (unlikely(desc->istate & IRQS_INPROGRESS)) {
+	if (unlikely(irqd_irq_inprogress(&desc->irq_data))) {
 		raw_spin_unlock_irq(&desc->lock);
 		chip_bus_sync_unlock(desc);
 		cpu_relax();
@@ -668,12 +675,10 @@ again:
 
 	desc->threads_oneshot &= ~action->thread_mask;
 
-	if (!desc->threads_oneshot && !(desc->istate & IRQS_DISABLED) &&
-	    (desc->istate & IRQS_MASKED)) {
-		irq_compat_clr_masked(desc);
-		desc->istate &= ~IRQS_MASKED;
-		desc->irq_data.chip->irq_unmask(&desc->irq_data);
-	}
+	if (!desc->threads_oneshot && !irqd_irq_disabled(&desc->irq_data) &&
+	    irqd_irq_masked(&desc->irq_data))
+		unmask_irq(desc);
+
 out_unlock:
 	raw_spin_unlock_irq(&desc->lock);
 	chip_bus_sync_unlock(desc);
@@ -767,7 +772,7 @@ static int irq_thread(void *data)
 		atomic_inc(&desc->threads_active);
 
 		raw_spin_lock_irq(&desc->lock);
-		if (unlikely(desc->istate & IRQS_DISABLED)) {
+		if (unlikely(irqd_irq_disabled(&desc->irq_data))) {
 			/*
 			 * CHECKME: We might need a dedicated
 			 * IRQ_THREAD_PENDING flag here, which
@@ -775,7 +780,6 @@ static int irq_thread(void *data)
 			 * but AFAICT IRQS_PENDING should be fine as it
 			 * retriggers the interrupt itself --- tglx
 			 */
-			irq_compat_set_pending(desc);
 			desc->istate |= IRQS_PENDING;
 			raw_spin_unlock_irq(&desc->lock);
 		} else {
@@ -971,8 +975,6 @@ __setup_irq(unsigned int irq, struct irq_desc *desc, struct irqaction *new)
 	new->thread_mask = 1 << ffz(thread_mask);
 
 	if (!shared) {
-		irq_chip_set_defaults(desc->irq_data.chip);
-
 		init_waitqueue_head(&desc->wait_for_threads);
 
 		/* Setup the type (level, edge polarity) if configured: */
@@ -985,8 +987,8 @@ __setup_irq(unsigned int irq, struct irq_desc *desc, struct irqaction *new)
 		}
 
 		desc->istate &= ~(IRQS_AUTODETECT | IRQS_SPURIOUS_DISABLED | \
-				  IRQS_INPROGRESS | IRQS_ONESHOT | \
-				  IRQS_WAITING);
+				  IRQS_ONESHOT | IRQS_WAITING);
+		irqd_clear(&desc->irq_data, IRQD_IRQ_INPROGRESS);
 
 		if (new->flags & IRQF_PERCPU) {
 			irqd_set(&desc->irq_data, IRQD_PER_CPU);
@@ -1049,6 +1051,7 @@ __setup_irq(unsigned int irq, struct irq_desc *desc, struct irqaction *new)
 	register_irq_proc(irq, desc);
 	new->dir = NULL;
 	register_handler_proc(irq, new);
+	free_cpumask_var(mask);
 
 	return 0;
 
diff --git a/kernel/irq/migration.c b/kernel/irq/migration.c
index ec4806d4778b..47420908fba0 100644
--- a/kernel/irq/migration.c
+++ b/kernel/irq/migration.c
@@ -35,7 +35,7 @@ void irq_move_masked_irq(struct irq_data *idata)
 	 * do the disable, re-program, enable sequence.
 	 * This is *not* particularly important for level triggered
 	 * but in a edge trigger case, we might be setting rte
-	 * when an active trigger is comming in. This could
+	 * when an active trigger is coming in. This could
 	 * cause some ioapics to mal-function.
 	 * Being paranoid i guess!
 	 *
@@ -53,20 +53,14 @@ void irq_move_masked_irq(struct irq_data *idata)
 	cpumask_clear(desc->pending_mask);
 }
 
-void move_masked_irq(int irq)
-{
-	irq_move_masked_irq(irq_get_irq_data(irq));
-}
-
 void irq_move_irq(struct irq_data *idata)
 {
-	struct irq_desc *desc = irq_data_to_desc(idata);
 	bool masked;
 
 	if (likely(!irqd_is_setaffinity_pending(idata)))
 		return;
 
-	if (unlikely(desc->istate & IRQS_DISABLED))
+	if (unlikely(irqd_irq_disabled(idata)))
 		return;
 
 	/*
@@ -74,15 +68,10 @@ void irq_move_irq(struct irq_data *idata)
 	 * threaded interrupt with ONESHOT set, we can end up with an
 	 * interrupt storm.
 	 */
-	masked = desc->istate & IRQS_MASKED;
+	masked = irqd_irq_masked(idata);
 	if (!masked)
 		idata->chip->irq_mask(idata);
 	irq_move_masked_irq(idata);
 	if (!masked)
 		idata->chip->irq_unmask(idata);
 }
-
-void move_native_irq(int irq)
-{
-	irq_move_irq(irq_get_irq_data(irq));
-}
diff --git a/kernel/irq/proc.c b/kernel/irq/proc.c
index 760248de109d..dd201bd35103 100644
--- a/kernel/irq/proc.c
+++ b/kernel/irq/proc.c
@@ -364,6 +364,10 @@ int __weak arch_show_interrupts(struct seq_file *p, int prec)
 	return 0;
 }
 
+#ifndef ACTUAL_NR_IRQS
+# define ACTUAL_NR_IRQS nr_irqs
+#endif
+
 int show_interrupts(struct seq_file *p, void *v)
 {
 	static int prec;
@@ -373,10 +377,10 @@ int show_interrupts(struct seq_file *p, void *v)
 	struct irqaction *action;
 	struct irq_desc *desc;
 
-	if (i > nr_irqs)
+	if (i > ACTUAL_NR_IRQS)
 		return 0;
 
-	if (i == nr_irqs)
+	if (i == ACTUAL_NR_IRQS)
 		return arch_show_interrupts(p, prec);
 
 	/* print header and calculate the width of the first column */
@@ -404,7 +408,20 @@ int show_interrupts(struct seq_file *p, void *v)
 	seq_printf(p, "%*d: ", prec, i);
 	for_each_online_cpu(j)
 		seq_printf(p, "%10u ", kstat_irqs_cpu(i, j));
-	seq_printf(p, " %8s", desc->irq_data.chip->name);
+
+	if (desc->irq_data.chip) {
+		if (desc->irq_data.chip->irq_print_chip)
+			desc->irq_data.chip->irq_print_chip(&desc->irq_data, p);
+		else if (desc->irq_data.chip->name)
+			seq_printf(p, " %8s", desc->irq_data.chip->name);
+		else
+			seq_printf(p, " %8s", "-");
+	} else {
+		seq_printf(p, " %8s", "None");
+	}
+#ifdef CONFIG_GENIRC_IRQ_SHOW_LEVEL
+	seq_printf(p, " %-8s", irqd_is_level_type(&desc->irq_data) ? "Level" : "Edge");
+#endif
 	if (desc->name)
 		seq_printf(p, "-%-8s", desc->name);
 
diff --git a/kernel/irq/resend.c b/kernel/irq/resend.c
index ad683a99b1ec..14dd5761e8c9 100644
--- a/kernel/irq/resend.c
+++ b/kernel/irq/resend.c
@@ -65,7 +65,6 @@ void check_irq_resend(struct irq_desc *desc, unsigned int irq)
 	if (desc->istate & IRQS_REPLAY)
 		return;
 	if (desc->istate & IRQS_PENDING) {
-		irq_compat_clr_pending(desc);
 		desc->istate &= ~IRQS_PENDING;
 		desc->istate |= IRQS_REPLAY;
 
diff --git a/kernel/irq/settings.h b/kernel/irq/settings.h
index 0227ad358272..0d91730b6330 100644
--- a/kernel/irq/settings.h
+++ b/kernel/irq/settings.h
@@ -15,17 +15,8 @@ enum {
 	_IRQF_MODIFY_MASK	= IRQF_MODIFY_MASK,
 };
 
-#define IRQ_INPROGRESS		GOT_YOU_MORON
-#define IRQ_REPLAY		GOT_YOU_MORON
-#define IRQ_WAITING		GOT_YOU_MORON
-#define IRQ_DISABLED		GOT_YOU_MORON
-#define IRQ_PENDING		GOT_YOU_MORON
-#define IRQ_MASKED		GOT_YOU_MORON
-#define IRQ_WAKEUP		GOT_YOU_MORON
-#define IRQ_MOVE_PENDING	GOT_YOU_MORON
 #define IRQ_PER_CPU		GOT_YOU_MORON
 #define IRQ_NO_BALANCING	GOT_YOU_MORON
-#define IRQ_AFFINITY_SET	GOT_YOU_MORON
 #define IRQ_LEVEL		GOT_YOU_MORON
 #define IRQ_NOPROBE		GOT_YOU_MORON
 #define IRQ_NOREQUEST		GOT_YOU_MORON
@@ -37,102 +28,98 @@ enum {
 static inline void
 irq_settings_clr_and_set(struct irq_desc *desc, u32 clr, u32 set)
 {
-	desc->status &= ~(clr & _IRQF_MODIFY_MASK);
-	desc->status |= (set & _IRQF_MODIFY_MASK);
+	desc->status_use_accessors &= ~(clr & _IRQF_MODIFY_MASK);
+	desc->status_use_accessors |= (set & _IRQF_MODIFY_MASK);
 }
 
 static inline bool irq_settings_is_per_cpu(struct irq_desc *desc)
 {
-	return desc->status & _IRQ_PER_CPU;
+	return desc->status_use_accessors & _IRQ_PER_CPU;
 }
 
 static inline void irq_settings_set_per_cpu(struct irq_desc *desc)
 {
-	desc->status |= _IRQ_PER_CPU;
+	desc->status_use_accessors |= _IRQ_PER_CPU;
 }
 
 static inline void irq_settings_set_no_balancing(struct irq_desc *desc)
 {
-	desc->status |= _IRQ_NO_BALANCING;
+	desc->status_use_accessors |= _IRQ_NO_BALANCING;
 }
 
 static inline bool irq_settings_has_no_balance_set(struct irq_desc *desc)
 {
-	return desc->status & _IRQ_NO_BALANCING;
+	return desc->status_use_accessors & _IRQ_NO_BALANCING;
 }
 
 static inline u32 irq_settings_get_trigger_mask(struct irq_desc *desc)
 {
-	return desc->status & IRQ_TYPE_SENSE_MASK;
+	return desc->status_use_accessors & IRQ_TYPE_SENSE_MASK;
 }
 
 static inline void
 irq_settings_set_trigger_mask(struct irq_desc *desc, u32 mask)
 {
-	desc->status &= ~IRQ_TYPE_SENSE_MASK;
-	desc->status |= mask & IRQ_TYPE_SENSE_MASK;
+	desc->status_use_accessors &= ~IRQ_TYPE_SENSE_MASK;
+	desc->status_use_accessors |= mask & IRQ_TYPE_SENSE_MASK;
 }
 
 static inline bool irq_settings_is_level(struct irq_desc *desc)
 {
-	return desc->status & _IRQ_LEVEL;
+	return desc->status_use_accessors & _IRQ_LEVEL;
 }
 
 static inline void irq_settings_clr_level(struct irq_desc *desc)
 {
-	desc->status &= ~_IRQ_LEVEL;
+	desc->status_use_accessors &= ~_IRQ_LEVEL;
 }
 
 static inline void irq_settings_set_level(struct irq_desc *desc)
 {
-	desc->status |= _IRQ_LEVEL;
+	desc->status_use_accessors |= _IRQ_LEVEL;
 }
 
 static inline bool irq_settings_can_request(struct irq_desc *desc)
 {
-	return !(desc->status & _IRQ_NOREQUEST);
+	return !(desc->status_use_accessors & _IRQ_NOREQUEST);
 }
 
 static inline void irq_settings_clr_norequest(struct irq_desc *desc)
 {
-	desc->status &= ~_IRQ_NOREQUEST;
+	desc->status_use_accessors &= ~_IRQ_NOREQUEST;
 }
 
 static inline void irq_settings_set_norequest(struct irq_desc *desc)
 {
-	desc->status |= _IRQ_NOREQUEST;
+	desc->status_use_accessors |= _IRQ_NOREQUEST;
 }
 
 static inline bool irq_settings_can_probe(struct irq_desc *desc)
 {
-	return !(desc->status & _IRQ_NOPROBE);
+	return !(desc->status_use_accessors & _IRQ_NOPROBE);
 }
 
 static inline void irq_settings_clr_noprobe(struct irq_desc *desc)
 {
-	desc->status &= ~_IRQ_NOPROBE;
+	desc->status_use_accessors &= ~_IRQ_NOPROBE;
 }
 
 static inline void irq_settings_set_noprobe(struct irq_desc *desc)
 {
-	desc->status |= _IRQ_NOPROBE;
+	desc->status_use_accessors |= _IRQ_NOPROBE;
 }
 
 static inline bool irq_settings_can_move_pcntxt(struct irq_desc *desc)
 {
-	return desc->status & _IRQ_MOVE_PCNTXT;
+	return desc->status_use_accessors & _IRQ_MOVE_PCNTXT;
 }
 
 static inline bool irq_settings_can_autoenable(struct irq_desc *desc)
 {
-	return !(desc->status & _IRQ_NOAUTOEN);
+	return !(desc->status_use_accessors & _IRQ_NOAUTOEN);
 }
 
 static inline bool irq_settings_is_nested_thread(struct irq_desc *desc)
 {
-	return desc->status & _IRQ_NESTED_THREAD;
+	return desc->status_use_accessors & _IRQ_NESTED_THREAD;
 }
-
-/* Nothing should touch desc->status from now on */
-#undef status
-#define status		USE_THE_PROPER_WRAPPERS_YOU_MORON
diff --git a/kernel/irq/spurious.c b/kernel/irq/spurious.c
index dd586ebf9c8c..dfbd550401b2 100644
--- a/kernel/irq/spurious.c
+++ b/kernel/irq/spurious.c
@@ -45,12 +45,12 @@ bool irq_wait_for_poll(struct irq_desc *desc)
 #ifdef CONFIG_SMP
 	do {
 		raw_spin_unlock(&desc->lock);
-		while (desc->istate & IRQS_INPROGRESS)
+		while (irqd_irq_inprogress(&desc->irq_data))
 			cpu_relax();
 		raw_spin_lock(&desc->lock);
-	} while (desc->istate & IRQS_INPROGRESS);
+	} while (irqd_irq_inprogress(&desc->irq_data));
 	/* Might have been disabled in meantime */
-	return !(desc->istate & IRQS_DISABLED) && desc->action;
+	return !irqd_irq_disabled(&desc->irq_data) && desc->action;
 #else
 	return false;
 #endif
@@ -75,7 +75,7 @@ static int try_one_irq(int irq, struct irq_desc *desc, bool force)
 	 * Do not poll disabled interrupts unless the spurious
 	 * disabled poller asks explicitely.
 	 */
-	if ((desc->istate & IRQS_DISABLED) && !force)
+	if (irqd_irq_disabled(&desc->irq_data) && !force)
 		goto out;
 
 	/*
@@ -88,12 +88,11 @@ static int try_one_irq(int irq, struct irq_desc *desc, bool force)
 		goto out;
 
 	/* Already running on another processor */
-	if (desc->istate & IRQS_INPROGRESS) {
+	if (irqd_irq_inprogress(&desc->irq_data)) {
 		/*
 		 * Already running: If it is shared get the other
 		 * CPU to go looking for our mystery interrupt too
 		 */
-		irq_compat_set_pending(desc);
 		desc->istate |= IRQS_PENDING;
 		goto out;
 	}
diff --git a/kernel/kallsyms.c b/kernel/kallsyms.c
index a56aa58b9cb0..079f1d39a8b8 100644
--- a/kernel/kallsyms.c
+++ b/kernel/kallsyms.c
@@ -342,13 +342,15 @@ int lookup_symbol_attrs(unsigned long addr, unsigned long *size,
 }
 
 /* Look up a kernel symbol and return it in a text buffer. */
-int sprint_symbol(char *buffer, unsigned long address)
+static int __sprint_symbol(char *buffer, unsigned long address,
+			   int symbol_offset)
 {
 	char *modname;
 	const char *name;
 	unsigned long offset, size;
 	int len;
 
+	address += symbol_offset;
 	name = kallsyms_lookup(address, &size, &offset, &modname, buffer);
 	if (!name)
 		return sprintf(buffer, "0x%lx", address);
@@ -357,17 +359,53 @@ int sprint_symbol(char *buffer, unsigned long address)
 		strcpy(buffer, name);
 	len = strlen(buffer);
 	buffer += len;
+	offset -= symbol_offset;
 
 	if (modname)
-		len += sprintf(buffer, "+%#lx/%#lx [%s]",
-						offset, size, modname);
+		len += sprintf(buffer, "+%#lx/%#lx [%s]", offset, size, modname);
 	else
 		len += sprintf(buffer, "+%#lx/%#lx", offset, size);
 
 	return len;
 }
+
+/**
+ * sprint_symbol - Look up a kernel symbol and return it in a text buffer
+ * @buffer: buffer to be stored
+ * @address: address to lookup
+ *
+ * This function looks up a kernel symbol with @address and stores its name,
+ * offset, size and module name to @buffer if possible. If no symbol was found,
+ * just saves its @address as is.
+ *
+ * This function returns the number of bytes stored in @buffer.
+ */
+int sprint_symbol(char *buffer, unsigned long address)
+{
+	return __sprint_symbol(buffer, address, 0);
+}
+
 EXPORT_SYMBOL_GPL(sprint_symbol);
 
+/**
+ * sprint_backtrace - Look up a backtrace symbol and return it in a text buffer
+ * @buffer: buffer to be stored
+ * @address: address to lookup
+ *
+ * This function is for stack backtrace and does the same thing as
+ * sprint_symbol() but with modified/decreased @address. If there is a
+ * tail-call to the function marked "noreturn", gcc optimized out code after
+ * the call so that the stack-saved return address could point outside of the
+ * caller. This function ensures that kallsyms will find the original caller
+ * by decreasing @address.
+ *
+ * This function returns the number of bytes stored in @buffer.
+ */
+int sprint_backtrace(char *buffer, unsigned long address)
+{
+	return __sprint_symbol(buffer, address, -1);
+}
+
 /* Look up a kernel symbol and print it to the kernel messages. */
 void __print_symbol(const char *fmt, unsigned long address)
 {
diff --git a/kernel/kexec.c b/kernel/kexec.c
index ec19b92c7ebd..55936f9cb251 100644
--- a/kernel/kexec.c
+++ b/kernel/kexec.c
@@ -144,7 +144,7 @@ static int do_kimage_alloc(struct kimage **rimage, unsigned long entry,
 	/* Initialize the list of destination pages */
 	INIT_LIST_HEAD(&image->dest_pages);
 
-	/* Initialize the list of unuseable pages */
+	/* Initialize the list of unusable pages */
 	INIT_LIST_HEAD(&image->unuseable_pages);
 
 	/* Read in the segments */
@@ -454,7 +454,7 @@ static struct page *kimage_alloc_normal_control_pages(struct kimage *image,
 	/* Deal with the destination pages I have inadvertently allocated.
 	 *
 	 * Ideally I would convert multi-page allocations into single
-	 * page allocations, and add everyting to image->dest_pages.
+	 * page allocations, and add everything to image->dest_pages.
 	 *
 	 * For now it is simpler to just free the pages.
 	 */
@@ -602,7 +602,7 @@ static void kimage_free_extra_pages(struct kimage *image)
 	/* Walk through and free any extra destination pages I may have */
 	kimage_free_page_list(&image->dest_pages);
 
-	/* Walk through and free any unuseable pages I have cached */
+	/* Walk through and free any unusable pages I have cached */
 	kimage_free_page_list(&image->unuseable_pages);
 
 }
@@ -1099,7 +1099,8 @@ size_t crash_get_memory_size(void)
 	return size;
 }
 
-static void free_reserved_phys_range(unsigned long begin, unsigned long end)
+void __weak crash_free_reserved_phys_range(unsigned long begin,
+					   unsigned long end)
 {
 	unsigned long addr;
 
@@ -1135,7 +1136,7 @@ int crash_shrink_memory(unsigned long new_size)
 	start = roundup(start, PAGE_SIZE);
 	end = roundup(start + new_size, PAGE_SIZE);
 
-	free_reserved_phys_range(end, crashk_res.end);
+	crash_free_reserved_phys_range(end, crashk_res.end);
 
 	if ((start == end) && (crashk_res.parent != NULL))
 		release_resource(&crashk_res);
diff --git a/kernel/kthread.c b/kernel/kthread.c
index 684ab3f7dd72..3b34d2732bce 100644
--- a/kernel/kthread.c
+++ b/kernel/kthread.c
@@ -139,7 +139,7 @@ static void create_kthread(struct kthread_create_info *create)
  * in @node, to get NUMA affinity for kthread stack, or else give -1.
  * When woken, the thread will run @threadfn() with @data as its
  * argument. @threadfn() can either call do_exit() directly if it is a
- * standalone thread for which noone will call kthread_stop(), or
+ * standalone thread for which no one will call kthread_stop(), or
  * return when 'kthread_should_stop()' is true (which means
  * kthread_stop() has been called).  The return value should be zero
  * or a negative error number; it will be passed to kthread_stop().
diff --git a/kernel/latencytop.c b/kernel/latencytop.c
index ee74b35e528d..376066e10413 100644
--- a/kernel/latencytop.c
+++ b/kernel/latencytop.c
@@ -153,7 +153,7 @@ static inline void store_stacktrace(struct task_struct *tsk,
 }
 
 /**
- * __account_scheduler_latency - record an occured latency
+ * __account_scheduler_latency - record an occurred latency
  * @tsk - the task struct of the task hitting the latency
  * @usecs - the duration of the latency in microseconds
  * @inter - 1 if the sleep was interruptible, 0 if uninterruptible
diff --git a/kernel/lockdep.c b/kernel/lockdep.c
index 0d2058da80f5..53a68956f131 100644
--- a/kernel/lockdep.c
+++ b/kernel/lockdep.c
@@ -2309,7 +2309,7 @@ void trace_hardirqs_on_caller(unsigned long ip)
 	if (unlikely(curr->hardirqs_enabled)) {
 		/*
 		 * Neither irq nor preemption are disabled here
-		 * so this is racy by nature but loosing one hit
+		 * so this is racy by nature but losing one hit
 		 * in a stat is not a big deal.
 		 */
 		__debug_atomic_inc(redundant_hardirqs_on);
@@ -2620,7 +2620,7 @@ static int mark_lock(struct task_struct *curr, struct held_lock *this,
 	if (!graph_lock())
 		return 0;
 	/*
-	 * Make sure we didnt race:
+	 * Make sure we didn't race:
 	 */
 	if (unlikely(hlock_class(this)->usage_mask & new_mask)) {
 		graph_unlock();
diff --git a/kernel/lockdep_proc.c b/kernel/lockdep_proc.c
index 1969d2fc4b36..71edd2f60c02 100644
--- a/kernel/lockdep_proc.c
+++ b/kernel/lockdep_proc.c
@@ -225,7 +225,7 @@ static int lockdep_stats_show(struct seq_file *m, void *v)
 		      nr_irq_read_safe = 0, nr_irq_read_unsafe = 0,
 		      nr_softirq_read_safe = 0, nr_softirq_read_unsafe = 0,
 		      nr_hardirq_read_safe = 0, nr_hardirq_read_unsafe = 0,
-		      sum_forward_deps = 0, factor = 0;
+		      sum_forward_deps = 0;
 
 	list_for_each_entry(class, &all_lock_classes, lock_entry) {
 
@@ -283,13 +283,6 @@ static int lockdep_stats_show(struct seq_file *m, void *v)
 			nr_hardirq_unsafe * nr_hardirq_safe +
 			nr_list_entries);
 
-	/*
-	 * Estimated factor between direct and indirect
-	 * dependencies:
-	 */
-	if (nr_list_entries)
-		factor = sum_forward_deps / nr_list_entries;
-
 #ifdef CONFIG_PROVE_LOCKING
 	seq_printf(m, " dependency chains:             %11lu [max: %lu]\n",
 			nr_lock_chains, MAX_LOCKDEP_CHAINS);
diff --git a/kernel/module.c b/kernel/module.c
index 1f9f7bc56ca1..d5938a5c19c4 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -809,7 +809,7 @@ SYSCALL_DEFINE2(delete_module, const char __user *, name_user,
 		wait_for_zero_refcount(mod);
 
 	mutex_unlock(&module_mutex);
-	/* Final destruction now noone is using it. */
+	/* Final destruction now no one is using it. */
 	if (mod->exit != NULL)
 		mod->exit();
 	blocking_notifier_call_chain(&module_notify_list,
@@ -2777,7 +2777,7 @@ static struct module *load_module(void __user *umod,
 	mod->state = MODULE_STATE_COMING;
 
 	/* Now sew it into the lists so we can get lockdep and oops
-	 * info during argument parsing.  Noone should access us, since
+	 * info during argument parsing.  No one should access us, since
 	 * strong_try_module_get() will fail.
 	 * lockdep/oops can run asynchronous, so use the RCU list insertion
 	 * function to insert in a way safe to concurrent readers.
@@ -2971,7 +2971,7 @@ static const char *get_ksymbol(struct module *mod,
 	else
 		nextval = (unsigned long)mod->module_core+mod->core_text_size;
 
-	/* Scan for closest preceeding symbol, and next symbol. (ELF
+	/* Scan for closest preceding symbol, and next symbol. (ELF
 	   starts real symbols at 1). */
 	for (i = 1; i < mod->num_symtab; i++) {
 		if (mod->symtab[i].st_shndx == SHN_UNDEF)
diff --git a/kernel/mutex.c b/kernel/mutex.c
index a5889fb28ecf..c4195fa98900 100644
--- a/kernel/mutex.c
+++ b/kernel/mutex.c
@@ -245,7 +245,7 @@ __mutex_lock_common(struct mutex *lock, long state, unsigned int subclass,
 		}
 		__set_task_state(task, state);
 
-		/* didnt get the lock, go to sleep: */
+		/* didn't get the lock, go to sleep: */
 		spin_unlock_mutex(&lock->wait_lock, flags);
 		preempt_enable_no_resched();
 		schedule();
diff --git a/kernel/padata.c b/kernel/padata.c
index 751019415d23..b91941df5e63 100644
--- a/kernel/padata.c
+++ b/kernel/padata.c
@@ -262,7 +262,7 @@ static void padata_reorder(struct parallel_data *pd)
 		/*
 		 * This cpu has to do the parallel processing of the next
 		 * object. It's waiting in the cpu's parallelization queue,
-		 * so exit imediately.
+		 * so exit immediately.
 		 */
 		if (PTR_ERR(padata) == -ENODATA) {
 			del_timer(&pd->timer);
@@ -284,7 +284,7 @@ static void padata_reorder(struct parallel_data *pd)
 	/*
 	 * The next object that needs serialization might have arrived to
 	 * the reorder queues in the meantime, we will be called again
-	 * from the timer function if noone else cares for it.
+	 * from the timer function if no one else cares for it.
 	 */
 	if (atomic_read(&pd->reorder_objects)
 			&& !(pinst->flags & PADATA_RESET))
@@ -515,7 +515,7 @@ static void __padata_stop(struct padata_instance *pinst)
 	put_online_cpus();
 }
 
-/* Replace the internal control stucture with a new one. */
+/* Replace the internal control structure with a new one. */
 static void padata_replace(struct padata_instance *pinst,
 			   struct parallel_data *pd_new)
 {
@@ -768,7 +768,7 @@ static int __padata_remove_cpu(struct padata_instance *pinst, int cpu)
 }
 
  /**
- * padata_remove_cpu - remove a cpu from the one or both(serial and paralell)
+ * padata_remove_cpu - remove a cpu from the one or both(serial and parallel)
  *                     padata cpumasks.
  *
  * @pinst: padata instance
diff --git a/kernel/params.c b/kernel/params.c
index 0da1411222b9..7ab388a48a2e 100644
--- a/kernel/params.c
+++ b/kernel/params.c
@@ -95,7 +95,7 @@ static int parse_one(char *param,
 	/* Find parameter */
 	for (i = 0; i < num_params; i++) {
 		if (parameq(param, params[i].name)) {
-			/* Noone handled NULL, so do it here. */
+			/* No one handled NULL, so do it here. */
 			if (!val && params[i].ops->set != param_set_bool)
 				return -EINVAL;
 			DEBUGP("They are equal!  Calling %p\n",
diff --git a/kernel/perf_event.c b/kernel/perf_event.c
index 3472bb1a070c..27960f114efd 100644
--- a/kernel/perf_event.c
+++ b/kernel/perf_event.c
@@ -145,7 +145,8 @@ static struct srcu_struct pmus_srcu;
  */
 int sysctl_perf_event_paranoid __read_mostly = 1;
 
-int sysctl_perf_event_mlock __read_mostly = 512; /* 'free' kb per user */
+/* Minimum for 512 kiB + 1 user control page */
+int sysctl_perf_event_mlock __read_mostly = 512 + (PAGE_SIZE / 1024); /* 'free' kiB per user */
 
 /*
  * max perf event sample rate
@@ -941,6 +942,7 @@ static void perf_group_attach(struct perf_event *event)
 static void
 list_del_event(struct perf_event *event, struct perf_event_context *ctx)
 {
+	struct perf_cpu_context *cpuctx;
 	/*
 	 * We can have double detach due to exit/hot-unplug + close.
 	 */
@@ -949,8 +951,17 @@ list_del_event(struct perf_event *event, struct perf_event_context *ctx)
 
 	event->attach_state &= ~PERF_ATTACH_CONTEXT;
 
-	if (is_cgroup_event(event))
+	if (is_cgroup_event(event)) {
 		ctx->nr_cgroups--;
+		cpuctx = __get_cpu_context(ctx);
+		/*
+		 * if there are no more cgroup events
+		 * then cler cgrp to avoid stale pointer
+		 * in update_cgrp_time_from_cpuctx()
+		 */
+		if (!ctx->nr_cgroups)
+			cpuctx->cgrp = NULL;
+	}
 
 	ctx->nr_events--;
 	if (event->attr.inherit_stat)
@@ -6520,6 +6531,11 @@ SYSCALL_DEFINE5(perf_event_open,
 		goto err_alloc;
 	}
 
+	if (task) {
+		put_task_struct(task);
+		task = NULL;
+	}
+
 	/*
 	 * Look up the group leader (we will attach this event to it):
 	 */
diff --git a/kernel/posix-cpu-timers.c b/kernel/posix-cpu-timers.c
index 67fea9d25d55..0791b13df7bf 100644
--- a/kernel/posix-cpu-timers.c
+++ b/kernel/posix-cpu-timers.c
@@ -1347,7 +1347,7 @@ void run_posix_cpu_timers(struct task_struct *tsk)
 
 	/*
 	 * Now that all the timers on our list have the firing flag,
-	 * noone will touch their list entries but us.  We'll take
+	 * no one will touch their list entries but us.  We'll take
 	 * each timer's lock before clearing its firing flag, so no
 	 * timer call will interfere.
 	 */
diff --git a/kernel/posix-timers.c b/kernel/posix-timers.c
index 4c0124919f9a..e5498d7405c3 100644
--- a/kernel/posix-timers.c
+++ b/kernel/posix-timers.c
@@ -313,7 +313,7 @@ static void schedule_next_timer(struct k_itimer *timr)
  * restarted (i.e. we have flagged this in the sys_private entry of the
  * info block).
  *
- * To protect aginst the timer going away while the interrupt is queued,
+ * To protect against the timer going away while the interrupt is queued,
  * we require that the it_requeue_pending flag be set.
  */
 void do_schedule_next_timer(struct siginfo *info)
diff --git a/kernel/power/main.c b/kernel/power/main.c
index 8eaba5f27b10..de9aef8742f4 100644
--- a/kernel/power/main.c
+++ b/kernel/power/main.c
@@ -224,7 +224,7 @@ power_attr(state);
  * writing to 'state'.  It first should read from 'wakeup_count' and store
  * the read value.  Then, after carrying out its own preparations for the system
  * transition to a sleep state, it should write the stored value to
- * 'wakeup_count'.  If that fails, at least one wakeup event has occured since
+ * 'wakeup_count'.  If that fails, at least one wakeup event has occurred since
  * 'wakeup_count' was read and 'state' should not be written to.  Otherwise, it
  * is allowed to write to 'state', but the transition will be aborted if there
  * are any wakeup events detected after 'wakeup_count' was written to.
diff --git a/kernel/sched.c b/kernel/sched.c
index ae659b99ce73..48013633d792 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -2309,7 +2309,7 @@ unsigned long wait_task_inactive(struct task_struct *p, long match_state)
  * Cause a process which is running on another CPU to enter
  * kernel-mode, without any delay. (to get signals handled.)
  *
- * NOTE: this function doesnt have to take the runqueue lock,
+ * NOTE: this function doesn't have to take the runqueue lock,
  * because all it wants to ensure is that the remote task enters
  * the kernel. If the IPI races and the task has been migrated
  * to another CPU then no harm is done and the purpose has been
@@ -4997,7 +4997,7 @@ recheck:
 	 */
 	raw_spin_lock_irqsave(&p->pi_lock, flags);
 	/*
-	 * To be able to change p->policy safely, the apropriate
+	 * To be able to change p->policy safely, the appropriate
 	 * runqueue lock must be held.
 	 */
 	rq = __task_rq_lock(p);
@@ -5011,6 +5011,17 @@ recheck:
 		return -EINVAL;
 	}
 
+	/*
+	 * If not changing anything there's no need to proceed further:
+	 */
+	if (unlikely(policy == p->policy && (!rt_policy(policy) ||
+			param->sched_priority == p->rt_priority))) {
+
+		__task_rq_unlock(rq);
+		raw_spin_unlock_irqrestore(&p->pi_lock, flags);
+		return 0;
+	}
+
 #ifdef CONFIG_RT_GROUP_SCHED
 	if (user) {
 		/*
@@ -5473,6 +5484,8 @@ EXPORT_SYMBOL(yield);
  * yield_to - yield the current processor to another thread in
  * your thread group, or accelerate that thread toward the
  * processor it's on.
+ * @p: target task
+ * @preempt: whether task preemption is allowed or not
  *
  * It's the caller's job to ensure that the target task struct
  * can't go away on us before we can do any checks.
@@ -5703,7 +5716,7 @@ void show_state_filter(unsigned long state_filter)
 	do_each_thread(g, p) {
 		/*
 		 * reset the NMI-timeout, listing all files on a slow
-		 * console might take alot of time:
+		 * console might take a lot of time:
 		 */
 		touch_nmi_watchdog();
 		if (!state_filter || (p->state & state_filter))
@@ -6318,6 +6331,9 @@ migration_call(struct notifier_block *nfb, unsigned long action, void *hcpu)
 		break;
 #endif
 	}
+
+	update_max_interval();
+
 	return NOTIFY_OK;
 }
 
@@ -8449,7 +8465,6 @@ int alloc_fair_sched_group(struct task_group *tg, struct task_group *parent)
 {
 	struct cfs_rq *cfs_rq;
 	struct sched_entity *se;
-	struct rq *rq;
 	int i;
 
 	tg->cfs_rq = kzalloc(sizeof(cfs_rq) * nr_cpu_ids, GFP_KERNEL);
@@ -8462,8 +8477,6 @@ int alloc_fair_sched_group(struct task_group *tg, struct task_group *parent)
 	tg->shares = NICE_0_LOAD;
 
 	for_each_possible_cpu(i) {
-		rq = cpu_rq(i);
-
 		cfs_rq = kzalloc_node(sizeof(struct cfs_rq),
 				      GFP_KERNEL, cpu_to_node(i));
 		if (!cfs_rq)
diff --git a/kernel/sched_autogroup.c b/kernel/sched_autogroup.c
index 5946ac515602..429242f3c484 100644
--- a/kernel/sched_autogroup.c
+++ b/kernel/sched_autogroup.c
@@ -179,7 +179,7 @@ void sched_autogroup_create_attach(struct task_struct *p)
 	struct autogroup *ag = autogroup_create();
 
 	autogroup_move_group(p, ag);
-	/* drop extra refrence added by autogroup_create() */
+	/* drop extra reference added by autogroup_create() */
 	autogroup_kref_put(ag);
 }
 EXPORT_SYMBOL(sched_autogroup_create_attach);
diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c
index 3f7ec9e27ee1..7f00772e57c9 100644
--- a/kernel/sched_fair.c
+++ b/kernel/sched_fair.c
@@ -22,6 +22,7 @@
 
 #include <linux/latencytop.h>
 #include <linux/sched.h>
+#include <linux/cpumask.h>
 
 /*
  * Targeted preemption latency for CPU-bound tasks:
@@ -3061,7 +3062,7 @@ static inline void calculate_imbalance(struct sd_lb_stats *sds, int this_cpu,
 
 	/*
 	 * if *imbalance is less than the average load per runnable task
-	 * there is no gaurantee that any tasks will be moved so we'll have
+	 * there is no guarantee that any tasks will be moved so we'll have
 	 * a think about bumping its value to force at least one task to be
 	 * moved
 	 */
@@ -3819,6 +3820,17 @@ void select_nohz_load_balancer(int stop_tick)
 
 static DEFINE_SPINLOCK(balancing);
 
+static unsigned long __read_mostly max_load_balance_interval = HZ/10;
+
+/*
+ * Scale the max load_balance interval with the number of CPUs in the system.
+ * This trades load-balance latency on larger machines for less cross talk.
+ */
+static void update_max_interval(void)
+{
+	max_load_balance_interval = HZ*num_online_cpus()/10;
+}
+
 /*
  * It checks each scheduling domain to see if it is due to be balanced,
  * and initiates a balancing operation if so.
@@ -3848,10 +3860,7 @@ static void rebalance_domains(int cpu, enum cpu_idle_type idle)
 
 		/* scale ms to jiffies */
 		interval = msecs_to_jiffies(interval);
-		if (unlikely(!interval))
-			interval = 1;
-		if (interval > HZ*NR_CPUS/10)
-			interval = HZ*NR_CPUS/10;
+		interval = clamp(interval, 1UL, max_load_balance_interval);
 
 		need_serialize = sd->flags & SD_SERIALIZE;
 
diff --git a/kernel/sched_idletask.c b/kernel/sched_idletask.c
index c82f26c1b7c3..a776a6396427 100644
--- a/kernel/sched_idletask.c
+++ b/kernel/sched_idletask.c
@@ -94,6 +94,4 @@ static const struct sched_class idle_sched_class = {
 
 	.prio_changed		= prio_changed_idle,
 	.switched_to		= switched_to_idle,
-
-	/* no .task_new for idle tasks */
 };
diff --git a/kernel/sched_rt.c b/kernel/sched_rt.c
index db308cb08b75..e7cebdc65f82 100644
--- a/kernel/sched_rt.c
+++ b/kernel/sched_rt.c
@@ -1378,7 +1378,7 @@ retry:
 		task = pick_next_pushable_task(rq);
 		if (task_cpu(next_task) == rq->cpu && task == next_task) {
 			/*
-			 * If we get here, the task hasnt moved at all, but
+			 * If we get here, the task hasn't moved at all, but
 			 * it has failed to push.  We will not try again,
 			 * since the other cpus will pull from us when they
 			 * are ready.
@@ -1488,7 +1488,7 @@ static int pull_rt_task(struct rq *this_rq)
 			/*
 			 * We continue with the search, just in
 			 * case there's an even higher prio task
-			 * in another runqueue. (low likelyhood
+			 * in another runqueue. (low likelihood
 			 * but possible)
 			 */
 		}
diff --git a/kernel/sched_stoptask.c b/kernel/sched_stoptask.c
index 84ec9bcf82d9..1ba2bd40fdac 100644
--- a/kernel/sched_stoptask.c
+++ b/kernel/sched_stoptask.c
@@ -102,6 +102,4 @@ static const struct sched_class stop_sched_class = {
 
 	.prio_changed		= prio_changed_stop,
 	.switched_to		= switched_to_stop,
-
-	/* no .task_new for stop tasks */
 };
diff --git a/kernel/signal.c b/kernel/signal.c
index 324eff5468ad..29e233fd7a0f 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -226,7 +226,7 @@ static inline void print_dropped_signal(int sig)
 /*
  * allocate a new signal queue record
  * - this may be called without locks if and only if t == current, otherwise an
- *   appopriate lock must be held to stop the target task from exiting
+ *   appropriate lock must be held to stop the target task from exiting
  */
 static struct sigqueue *
 __sigqueue_alloc(int sig, struct task_struct *t, gfp_t flags, int override_rlimit)
@@ -375,15 +375,15 @@ int unhandled_signal(struct task_struct *tsk, int sig)
 	return !tracehook_consider_fatal_signal(tsk, sig);
 }
 
-
-/* Notify the system that a driver wants to block all signals for this
+/*
+ * Notify the system that a driver wants to block all signals for this
  * process, and wants to be notified if any signals at all were to be
  * sent/acted upon.  If the notifier routine returns non-zero, then the
  * signal will be acted upon after all.  If the notifier routine returns 0,
  * then then signal will be blocked.  Only one block per process is
  * allowed.  priv is a pointer to private data that the notifier routine
- * can use to determine if the signal should be blocked or not.  */
-
+ * can use to determine if the signal should be blocked or not.
+ */
 void
 block_all_signals(int (*notifier)(void *priv), void *priv, sigset_t *mask)
 {
@@ -434,9 +434,10 @@ still_pending:
 		copy_siginfo(info, &first->info);
 		__sigqueue_free(first);
 	} else {
-		/* Ok, it wasn't in the queue.  This must be
-		   a fast-pathed signal or we must have been
-		   out of queue space.  So zero out the info.
+		/*
+		 * Ok, it wasn't in the queue.  This must be
+		 * a fast-pathed signal or we must have been
+		 * out of queue space.  So zero out the info.
 		 */
 		info->si_signo = sig;
 		info->si_errno = 0;
@@ -468,7 +469,7 @@ static int __dequeue_signal(struct sigpending *pending, sigset_t *mask,
 }
 
 /*
- * Dequeue a signal and return the element to the caller, which is 
+ * Dequeue a signal and return the element to the caller, which is
  * expected to free it.
  *
  * All callers have to hold the siglock.
@@ -490,7 +491,7 @@ int dequeue_signal(struct task_struct *tsk, sigset_t *mask, siginfo_t *info)
 		 * itimers are process shared and we restart periodic
 		 * itimers in the signal delivery path to prevent DoS
 		 * attacks in the high resolution timer case. This is
-		 * compliant with the old way of self restarting
+		 * compliant with the old way of self-restarting
 		 * itimers, as the SIGALRM is a legacy signal and only
 		 * queued once. Changing the restart behaviour to
 		 * restart the timer in the signal dequeue path is
@@ -923,14 +924,15 @@ static int __send_signal(int sig, struct siginfo *info, struct task_struct *t,
 	if (info == SEND_SIG_FORCED)
 		goto out_set;
 
-	/* Real-time signals must be queued if sent by sigqueue, or
-	   some other real-time mechanism.  It is implementation
-	   defined whether kill() does so.  We attempt to do so, on
-	   the principle of least surprise, but since kill is not
-	   allowed to fail with EAGAIN when low on memory we just
-	   make sure at least one signal gets delivered and don't
-	   pass on the info struct.  */
-
+	/*
+	 * Real-time signals must be queued if sent by sigqueue, or
+	 * some other real-time mechanism.  It is implementation
+	 * defined whether kill() does so.  We attempt to do so, on
+	 * the principle of least surprise, but since kill is not
+	 * allowed to fail with EAGAIN when low on memory we just
+	 * make sure at least one signal gets delivered and don't
+	 * pass on the info struct.
+	 */
 	if (sig < SIGRTMIN)
 		override_rlimit = (is_si_special(info) || info->si_code >= 0);
 	else
@@ -1201,8 +1203,7 @@ retry:
 	return error;
 }
 
-int
-kill_proc_info(int sig, struct siginfo *info, pid_t pid)
+int kill_proc_info(int sig, struct siginfo *info, pid_t pid)
 {
 	int error;
 	rcu_read_lock();
@@ -1299,8 +1300,7 @@ static int kill_something_info(int sig, struct siginfo *info, pid_t pid)
  * These are for backward compatibility with the rest of the kernel source.
  */
 
-int
-send_sig_info(int sig, struct siginfo *info, struct task_struct *p)
+int send_sig_info(int sig, struct siginfo *info, struct task_struct *p)
 {
 	/*
 	 * Make sure legacy kernel users don't send in bad values
@@ -1368,7 +1368,7 @@ EXPORT_SYMBOL(kill_pid);
  * These functions support sending signals using preallocated sigqueue
  * structures.  This is needed "because realtime applications cannot
  * afford to lose notifications of asynchronous events, like timer
- * expirations or I/O completions".  In the case of Posix Timers
+ * expirations or I/O completions".  In the case of POSIX Timers
  * we allocate the sigqueue structure from the timer_create.  If this
  * allocation fails we are able to report the failure to the application
  * with an EAGAIN error.
@@ -1553,7 +1553,7 @@ static void do_notify_parent_cldstop(struct task_struct *tsk, int why)
 	info.si_signo = SIGCHLD;
 	info.si_errno = 0;
 	/*
-	 * see comment in do_notify_parent() abot the following 3 lines
+	 * see comment in do_notify_parent() about the following 4 lines
 	 */
 	rcu_read_lock();
 	info.si_pid = task_pid_nr_ns(tsk, parent->nsproxy->pid_ns);
@@ -1611,7 +1611,7 @@ static inline int may_ptrace_stop(void)
 }
 
 /*
- * Return nonzero if there is a SIGKILL that should be waking us up.
+ * Return non-zero if there is a SIGKILL that should be waking us up.
  * Called with the siglock held.
  */
 static int sigkill_pending(struct task_struct *tsk)
@@ -1735,7 +1735,7 @@ void ptrace_notify(int exit_code)
 /*
  * This performs the stopping for SIGSTOP and other stop signals.
  * We have to stop all threads in the thread group.
- * Returns nonzero if we've actually stopped and released the siglock.
+ * Returns non-zero if we've actually stopped and released the siglock.
  * Returns zero if we didn't stop and still hold the siglock.
  */
 static int do_signal_stop(int signr)
@@ -1823,10 +1823,12 @@ static int ptrace_signal(int signr, siginfo_t *info,
 
 	current->exit_code = 0;
 
-	/* Update the siginfo structure if the signal has
-	   changed.  If the debugger wanted something
-	   specific in the siginfo structure then it should
-	   have updated *info via PTRACE_SETSIGINFO.  */
+	/*
+	 * Update the siginfo structure if the signal has
+	 * changed.  If the debugger wanted something
+	 * specific in the siginfo structure then it should
+	 * have updated *info via PTRACE_SETSIGINFO.
+	 */
 	if (signr != info->si_signo) {
 		info->si_signo = signr;
 		info->si_errno = 0;
@@ -1885,7 +1887,7 @@ relock:
 	for (;;) {
 		struct k_sigaction *ka;
 		/*
-		 * Tracing can induce an artifical signal and choose sigaction.
+		 * Tracing can induce an artificial signal and choose sigaction.
 		 * The return value in @signr determines the default action,
 		 * but @info->si_signo is the signal number we will report.
 		 */
@@ -2034,7 +2036,8 @@ void exit_signals(struct task_struct *tsk)
 	if (!signal_pending(tsk))
 		goto out;
 
-	/* It could be that __group_complete_signal() choose us to
+	/*
+	 * It could be that __group_complete_signal() choose us to
 	 * notify about group-wide signal. Another thread should be
 	 * woken now to take the signal since we will not.
 	 */
@@ -2072,6 +2075,9 @@ EXPORT_SYMBOL(unblock_all_signals);
  * System call entry points.
  */
 
+/**
+ *  sys_restart_syscall - restart a system call
+ */
 SYSCALL_DEFINE0(restart_syscall)
 {
 	struct restart_block *restart = &current_thread_info()->restart_block;
@@ -2125,6 +2131,13 @@ int sigprocmask(int how, sigset_t *set, sigset_t *oldset)
 	return error;
 }
 
+/**
+ *  sys_rt_sigprocmask - change the list of currently blocked signals
+ *  @how: whether to add, remove, or set signals
+ *  @set: stores pending signals
+ *  @oset: previous value of signal mask if non-null
+ *  @sigsetsize: size of sigset_t type
+ */
 SYSCALL_DEFINE4(rt_sigprocmask, int, how, sigset_t __user *, set,
 		sigset_t __user *, oset, size_t, sigsetsize)
 {
@@ -2183,8 +2196,14 @@ long do_sigpending(void __user *set, unsigned long sigsetsize)
 
 out:
 	return error;
-}	
+}
 
+/**
+ *  sys_rt_sigpending - examine a pending signal that has been raised
+ *			while blocked
+ *  @set: stores pending signals
+ *  @sigsetsize: size of sigset_t type or larger
+ */
 SYSCALL_DEFINE2(rt_sigpending, sigset_t __user *, set, size_t, sigsetsize)
 {
 	return do_sigpending(set, sigsetsize);
@@ -2233,9 +2252,9 @@ int copy_siginfo_to_user(siginfo_t __user *to, siginfo_t *from)
 		err |= __put_user(from->si_trapno, &to->si_trapno);
 #endif
 #ifdef BUS_MCEERR_AO
-		/* 
+		/*
 		 * Other callers might not initialize the si_lsb field,
-	 	 * so check explicitely for the right codes here.
+		 * so check explicitly for the right codes here.
 		 */
 		if (from->si_code == BUS_MCEERR_AR || from->si_code == BUS_MCEERR_AO)
 			err |= __put_user(from->si_addr_lsb, &to->si_addr_lsb);
@@ -2264,6 +2283,14 @@ int copy_siginfo_to_user(siginfo_t __user *to, siginfo_t *from)
 
 #endif
 
+/**
+ *  sys_rt_sigtimedwait - synchronously wait for queued signals specified
+ *			in @uthese
+ *  @uthese: queued signals to wait for
+ *  @uinfo: if non-null, the signal's siginfo is returned here
+ *  @uts: upper bound on process time suspension
+ *  @sigsetsize: size of sigset_t type
+ */
 SYSCALL_DEFINE4(rt_sigtimedwait, const sigset_t __user *, uthese,
 		siginfo_t __user *, uinfo, const struct timespec __user *, uts,
 		size_t, sigsetsize)
@@ -2280,7 +2307,7 @@ SYSCALL_DEFINE4(rt_sigtimedwait, const sigset_t __user *, uthese,
 
 	if (copy_from_user(&these, uthese, sizeof(these)))
 		return -EFAULT;
-		
+
 	/*
 	 * Invert the set of allowed signals to get those we
 	 * want to block.
@@ -2305,9 +2332,11 @@ SYSCALL_DEFINE4(rt_sigtimedwait, const sigset_t __user *, uthese,
 				   + (ts.tv_sec || ts.tv_nsec));
 
 		if (timeout) {
-			/* None ready -- temporarily unblock those we're
+			/*
+			 * None ready -- temporarily unblock those we're
 			 * interested while we are sleeping in so that we'll
-			 * be awakened when they arrive.  */
+			 * be awakened when they arrive.
+			 */
 			current->real_blocked = current->blocked;
 			sigandsets(&current->blocked, &current->blocked, &these);
 			recalc_sigpending();
@@ -2339,6 +2368,11 @@ SYSCALL_DEFINE4(rt_sigtimedwait, const sigset_t __user *, uthese,
 	return ret;
 }
 
+/**
+ *  sys_kill - send a signal to a process
+ *  @pid: the PID of the process
+ *  @sig: signal to be sent
+ */
 SYSCALL_DEFINE2(kill, pid_t, pid, int, sig)
 {
 	struct siginfo info;
@@ -2414,7 +2448,11 @@ SYSCALL_DEFINE3(tgkill, pid_t, tgid, pid_t, pid, int, sig)
 	return do_tkill(tgid, pid, sig);
 }
 
-/*
+/**
+ *  sys_tkill - send signal to one specific task
+ *  @pid: the PID of the task
+ *  @sig: signal to be sent
+ *
  *  Send a signal to only one task, even if it's a CLONE_THREAD task.
  */
 SYSCALL_DEFINE2(tkill, pid_t, pid, int, sig)
@@ -2426,6 +2464,12 @@ SYSCALL_DEFINE2(tkill, pid_t, pid, int, sig)
 	return do_tkill(0, pid, sig);
 }
 
+/**
+ *  sys_rt_sigqueueinfo - send signal information to a signal
+ *  @pid: the PID of the thread
+ *  @sig: signal to be sent
+ *  @uinfo: signal info to be sent
+ */
 SYSCALL_DEFINE3(rt_sigqueueinfo, pid_t, pid, int, sig,
 		siginfo_t __user *, uinfo)
 {
@@ -2437,7 +2481,7 @@ SYSCALL_DEFINE3(rt_sigqueueinfo, pid_t, pid, int, sig,
 	/* Not even root can pretend to send signals from the kernel.
 	 * Nor can they impersonate a kill()/tgkill(), which adds source info.
 	 */
-	if (info.si_code != SI_QUEUE) {
+	if (info.si_code >= 0 || info.si_code == SI_TKILL) {
 		/* We used to allow any < 0 si_code */
 		WARN_ON_ONCE(info.si_code < 0);
 		return -EPERM;
@@ -2457,7 +2501,7 @@ long do_rt_tgsigqueueinfo(pid_t tgid, pid_t pid, int sig, siginfo_t *info)
 	/* Not even root can pretend to send signals from the kernel.
 	 * Nor can they impersonate a kill()/tgkill(), which adds source info.
 	 */
-	if (info->si_code != SI_QUEUE) {
+	if (info->si_code >= 0 || info->si_code == SI_TKILL) {
 		/* We used to allow any < 0 si_code */
 		WARN_ON_ONCE(info->si_code < 0);
 		return -EPERM;
@@ -2553,12 +2597,11 @@ do_sigaltstack (const stack_t __user *uss, stack_t __user *uoss, unsigned long s
 
 		error = -EINVAL;
 		/*
-		 *
-		 * Note - this code used to test ss_flags incorrectly
+		 * Note - this code used to test ss_flags incorrectly:
 		 *  	  old code may have been written using ss_flags==0
 		 *	  to mean ss_flags==SS_ONSTACK (as this was the only
 		 *	  way that worked) - this fix preserves that older
-		 *	  mechanism
+		 *	  mechanism.
 		 */
 		if (ss_flags != SS_DISABLE && ss_flags != SS_ONSTACK && ss_flags != 0)
 			goto out;
@@ -2592,6 +2635,10 @@ out:
 
 #ifdef __ARCH_WANT_SYS_SIGPENDING
 
+/**
+ *  sys_sigpending - examine pending signals
+ *  @set: where mask of pending signal is returned
+ */
 SYSCALL_DEFINE1(sigpending, old_sigset_t __user *, set)
 {
 	return do_sigpending(set, sizeof(*set));
@@ -2600,8 +2647,15 @@ SYSCALL_DEFINE1(sigpending, old_sigset_t __user *, set)
 #endif
 
 #ifdef __ARCH_WANT_SYS_SIGPROCMASK
-/* Some platforms have their own version with special arguments others
-   support only sys_rt_sigprocmask.  */
+/**
+ *  sys_sigprocmask - examine and change blocked signals
+ *  @how: whether to add, remove, or set signals
+ *  @set: signals to add or remove (if non-null)
+ *  @oset: previous value of signal mask if non-null
+ *
+ * Some platforms have their own version with special arguments;
+ * others support only sys_rt_sigprocmask.
+ */
 
 SYSCALL_DEFINE3(sigprocmask, int, how, old_sigset_t __user *, set,
 		old_sigset_t __user *, oset)
@@ -2654,6 +2708,13 @@ out:
 #endif /* __ARCH_WANT_SYS_SIGPROCMASK */
 
 #ifdef __ARCH_WANT_SYS_RT_SIGACTION
+/**
+ *  sys_rt_sigaction - alter an action taken by a process
+ *  @sig: signal to be sent
+ *  @act: the thread group ID of the thread
+ *  @oact: the PID of the thread
+ *  @sigsetsize: size of sigset_t type
+ */
 SYSCALL_DEFINE4(rt_sigaction, int, sig,
 		const struct sigaction __user *, act,
 		struct sigaction __user *, oact,
@@ -2740,6 +2801,12 @@ SYSCALL_DEFINE0(pause)
 #endif
 
 #ifdef __ARCH_WANT_SYS_RT_SIGSUSPEND
+/**
+ *  sys_rt_sigsuspend - replace the signal mask for a value with the
+ *	@unewset value until a signal is received
+ *  @unewset: new signal mask value
+ *  @sigsetsize: size of sigset_t type
+ */
 SYSCALL_DEFINE2(rt_sigsuspend, sigset_t __user *, unewset, size_t, sigsetsize)
 {
 	sigset_t newset;
diff --git a/kernel/softirq.c b/kernel/softirq.c
index 735d87095172..174f976c2874 100644
--- a/kernel/softirq.c
+++ b/kernel/softirq.c
@@ -567,7 +567,7 @@ static void __tasklet_hrtimer_trampoline(unsigned long data)
 /**
  * tasklet_hrtimer_init - Init a tasklet/hrtimer combo for softirq callbacks
  * @ttimer:	 tasklet_hrtimer which is initialized
- * @function:	 hrtimer callback funtion which gets called from softirq context
+ * @function:	 hrtimer callback function which gets called from softirq context
  * @which_clock: clock id (CLOCK_MONOTONIC/CLOCK_REALTIME)
  * @mode:	 hrtimer mode (HRTIMER_MODE_ABS/HRTIMER_MODE_REL)
  */
diff --git a/kernel/time/jiffies.c b/kernel/time/jiffies.c
index b2fa506667c0..a470154e0408 100644
--- a/kernel/time/jiffies.c
+++ b/kernel/time/jiffies.c
@@ -34,7 +34,7 @@
  * inaccuracies caused by missed or lost timer
  * interrupts and the inability for the timer
  * interrupt hardware to accuratly tick at the
- * requested HZ value. It is also not reccomended
+ * requested HZ value. It is also not recommended
  * for "tick-less" systems.
  */
 #define NSEC_PER_JIFFY	((u32)((((u64)NSEC_PER_SEC)<<8)/ACTHZ))
diff --git a/kernel/time/ntp.c b/kernel/time/ntp.c
index 5f1bb8e2008f..f6117a4c7cb8 100644
--- a/kernel/time/ntp.c
+++ b/kernel/time/ntp.c
@@ -652,6 +652,8 @@ int do_adjtimex(struct timex *txc)
 		struct timespec delta;
 		delta.tv_sec  = txc->time.tv_sec;
 		delta.tv_nsec = txc->time.tv_usec;
+		if (!capable(CAP_SYS_TIME))
+			return -EPERM;
 		if (!(txc->modes & ADJ_NANO))
 			delta.tv_nsec *= 1000;
 		result = timekeeping_inject_offset(&delta);
diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
index 3bd7e3d5c632..8ad5d576755e 100644
--- a/kernel/time/timekeeping.c
+++ b/kernel/time/timekeeping.c
@@ -14,7 +14,7 @@
 #include <linux/init.h>
 #include <linux/mm.h>
 #include <linux/sched.h>
-#include <linux/sysdev.h>
+#include <linux/syscore_ops.h>
 #include <linux/clocksource.h>
 #include <linux/jiffies.h>
 #include <linux/time.h>
@@ -597,13 +597,12 @@ static struct timespec timekeeping_suspend_time;
 
 /**
  * timekeeping_resume - Resumes the generic timekeeping subsystem.
- * @dev:	unused
  *
  * This is for the generic clocksource timekeeping.
  * xtime/wall_to_monotonic/jiffies/etc are
  * still managed by arch specific suspend/resume code.
  */
-static int timekeeping_resume(struct sys_device *dev)
+static void timekeeping_resume(void)
 {
 	unsigned long flags;
 	struct timespec ts;
@@ -632,11 +631,9 @@ static int timekeeping_resume(struct sys_device *dev)
 
 	/* Resume hrtimers */
 	hres_timers_resume();
-
-	return 0;
 }
 
-static int timekeeping_suspend(struct sys_device *dev, pm_message_t state)
+static int timekeeping_suspend(void)
 {
 	unsigned long flags;
 
@@ -654,26 +651,18 @@ static int timekeeping_suspend(struct sys_device *dev, pm_message_t state)
 }
 
 /* sysfs resume/suspend bits for timekeeping */
-static struct sysdev_class timekeeping_sysclass = {
-	.name		= "timekeeping",
+static struct syscore_ops timekeeping_syscore_ops = {
 	.resume		= timekeeping_resume,
 	.suspend	= timekeeping_suspend,
 };
 
-static struct sys_device device_timer = {
-	.id		= 0,
-	.cls		= &timekeeping_sysclass,
-};
-
-static int __init timekeeping_init_device(void)
+static int __init timekeeping_init_ops(void)
 {
-	int error = sysdev_class_register(&timekeeping_sysclass);
-	if (!error)
-		error = sysdev_register(&device_timer);
-	return error;
+	register_syscore_ops(&timekeeping_syscore_ops);
+	return 0;
 }
 
-device_initcall(timekeeping_init_device);
+device_initcall(timekeeping_init_ops);
 
 /*
  * If the error is already larger, we look ahead even further
diff --git a/kernel/time/timer_stats.c b/kernel/time/timer_stats.c
index 2f3b585b8d7d..a5d0a3a85dd8 100644
--- a/kernel/time/timer_stats.c
+++ b/kernel/time/timer_stats.c
@@ -236,7 +236,7 @@ void timer_stats_update_stats(void *timer, pid_t pid, void *startf,
 			      unsigned int timer_flag)
 {
 	/*
-	 * It doesnt matter which lock we take:
+	 * It doesn't matter which lock we take:
 	 */
 	raw_spinlock_t *lock;
 	struct entry *entry, input;
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 888b611897d3..ee24fa1935ac 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -1268,7 +1268,7 @@ static int ftrace_update_code(struct module *mod)
 		p->flags = 0L;
 
 		/*
-		 * Do the initial record convertion from mcount jump
+		 * Do the initial record conversion from mcount jump
 		 * to the NOP instructions.
 		 */
 		if (!ftrace_code_disable(mod, p)) {
@@ -1467,7 +1467,7 @@ t_next(struct seq_file *m, void *v, loff_t *pos)
 		return t_hash_next(m, pos);
 
 	(*pos)++;
-	iter->pos = *pos;
+	iter->pos = iter->func_pos = *pos;
 
 	if (iter->flags & FTRACE_ITER_PRINTALL)
 		return t_hash_start(m, pos);
@@ -1502,7 +1502,6 @@ t_next(struct seq_file *m, void *v, loff_t *pos)
 	if (!rec)
 		return t_hash_start(m, pos);
 
-	iter->func_pos = *pos;
 	iter->func = rec;
 
 	return iter;
@@ -3426,7 +3425,7 @@ graph_init_task(struct task_struct *t, struct ftrace_ret_stack *ret_stack)
 	atomic_set(&t->tracing_graph_pause, 0);
 	atomic_set(&t->trace_overrun, 0);
 	t->ftrace_timestamp = 0;
-	/* make curr_ret_stack visable before we add the ret_stack */
+	/* make curr_ret_stack visible before we add the ret_stack */
 	smp_wmb();
 	t->ret_stack = ret_stack;
 }
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
index d9c8bcafb120..0ef7b4b2a1f7 100644
--- a/kernel/trace/ring_buffer.c
+++ b/kernel/trace/ring_buffer.c
@@ -1478,7 +1478,7 @@ static inline unsigned long rb_page_entries(struct buffer_page *bpage)
 	return local_read(&bpage->entries) & RB_WRITE_MASK;
 }
 
-/* Size is determined by what has been commited */
+/* Size is determined by what has been committed */
 static inline unsigned rb_page_size(struct buffer_page *bpage)
 {
 	return rb_page_commit(bpage);
@@ -2932,7 +2932,7 @@ rb_get_reader_page(struct ring_buffer_per_cpu *cpu_buffer)
 	/*
 	 * cpu_buffer->pages just needs to point to the buffer, it
 	 *  has no specific buffer page to point to. Lets move it out
-	 *  of our way so we don't accidently swap it.
+	 *  of our way so we don't accidentally swap it.
 	 */
 	cpu_buffer->pages = reader->list.prev;
 
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 9541c27c1cf2..d38c16a06a6f 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -3239,7 +3239,7 @@ waitagain:
 		trace_seq_init(&iter->seq);
 
 	/*
-	 * If there was nothing to send to user, inspite of consuming trace
+	 * If there was nothing to send to user, in spite of consuming trace
 	 * entries, go back to wait for more entries.
 	 */
 	if (sret == -EBUSY)
diff --git a/kernel/trace/trace_clock.c b/kernel/trace/trace_clock.c
index 685a67d55db0..6302747a1398 100644
--- a/kernel/trace/trace_clock.c
+++ b/kernel/trace/trace_clock.c
@@ -46,7 +46,7 @@ u64 notrace trace_clock_local(void)
 }
 
 /*
- * trace_clock(): 'inbetween' trace clock. Not completely serialized,
+ * trace_clock(): 'between' trace clock. Not completely serialized,
  * but not completely incorrect when crossing CPUs either.
  *
  * This is based on cpu_clock(), which will allow at most ~1 jiffy of
diff --git a/kernel/trace/trace_entries.h b/kernel/trace/trace_entries.h
index 1516cb3ec549..e32744c84d94 100644
--- a/kernel/trace/trace_entries.h
+++ b/kernel/trace/trace_entries.h
@@ -27,7 +27,7 @@
  *	  in the structure.
  *
  *   * for structures within structures, the format of the internal
- *	structure is layed out. This allows the internal structure
+ *	structure is laid out. This allows the internal structure
  *	to be deciphered for the format file. Although these macros
  *	may become out of sync with the internal structure, they
  *	will create a compile error if it happens. Since the
diff --git a/kernel/trace/trace_functions_graph.c b/kernel/trace/trace_functions_graph.c
index 76b05980225c..962cdb24ed81 100644
--- a/kernel/trace/trace_functions_graph.c
+++ b/kernel/trace/trace_functions_graph.c
@@ -905,7 +905,7 @@ print_graph_prologue(struct trace_iterator *iter, struct trace_seq *s,
  *
  * returns 1 if
  *  - we are inside irq code
- *  - we just extered irq code
+ *  - we just entered irq code
  *
  * retunns 0 if
  *  - funcgraph-interrupts option is set
diff --git a/kernel/trace/trace_irqsoff.c b/kernel/trace/trace_irqsoff.c
index 92b6e1e12d98..a4969b47afc1 100644
--- a/kernel/trace/trace_irqsoff.c
+++ b/kernel/trace/trace_irqsoff.c
@@ -80,7 +80,7 @@ static struct tracer_flags tracer_flags = {
  * skip the latency if the sequence has changed - some other section
  * did a maximum and could disturb our measurement with serial console
  * printouts, etc. Truly coinciding maximum latencies should be rare
- * and what happens together happens separately as well, so this doesnt
+ * and what happens together happens separately as well, so this doesn't
  * decrease the validity of the maximum found:
  */
 static __cacheline_aligned_in_smp	unsigned long max_sequence;
diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c
index 8435b43b1782..35d55a386145 100644
--- a/kernel/trace/trace_kprobe.c
+++ b/kernel/trace/trace_kprobe.c
@@ -1839,7 +1839,7 @@ static void unregister_probe_event(struct trace_probe *tp)
 	kfree(tp->call.print_fmt);
 }
 
-/* Make a debugfs interface for controling probe points */
+/* Make a debugfs interface for controlling probe points */
 static __init int init_kprobe_trace(void)
 {
 	struct dentry *d_tracer;
diff --git a/kernel/user-return-notifier.c b/kernel/user-return-notifier.c
index eb27fd3430a2..92cb706c7fc8 100644
--- a/kernel/user-return-notifier.c
+++ b/kernel/user-return-notifier.c
@@ -20,7 +20,7 @@ EXPORT_SYMBOL_GPL(user_return_notifier_register);
 
 /*
  * Removes a registered user return notifier.  Must be called from atomic
- * context, and from the same cpu registration occured in.
+ * context, and from the same cpu registration occurred in.
  */
 void user_return_notifier_unregister(struct user_return_notifier *urn)
 {
diff --git a/kernel/wait.c b/kernel/wait.c
index b0310eb6cc1e..f45ea8d2a1ce 100644
--- a/kernel/wait.c
+++ b/kernel/wait.c
@@ -142,7 +142,7 @@ EXPORT_SYMBOL(finish_wait);
  * woken up through the queue.
  *
  * This prevents waiter starvation where an exclusive waiter
- * aborts and is woken up concurrently and noone wakes up
+ * aborts and is woken up concurrently and no one wakes up
  * the next waiter.
  */
 void abort_exclusive_wait(wait_queue_head_t *q, wait_queue_t *wait,
diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 04ef830690ec..8859a41806dd 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -1291,7 +1291,7 @@ __acquires(&gcwq->lock)
 			return true;
 		spin_unlock_irq(&gcwq->lock);
 
-		/* CPU has come up inbetween, retry migration */
+		/* CPU has come up in between, retry migration */
 		cpu_relax();
 	}
 }
diff --git a/lib/Kconfig b/lib/Kconfig
index 23fa7a359db7..9c10e38fc609 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -158,6 +158,45 @@ config REED_SOLOMON_DEC16
 	boolean
 
 #
+# BCH support is selected if needed
+#
+config BCH
+	tristate
+
+config BCH_CONST_PARAMS
+	boolean
+	help
+	  Drivers may select this option to force specific constant
+	  values for parameters 'm' (Galois field order) and 't'
+	  (error correction capability). Those specific values must
+	  be set by declaring default values for symbols BCH_CONST_M
+	  and BCH_CONST_T.
+	  Doing so will enable extra compiler optimizations,
+	  improving encoding and decoding performance up to 2x for
+	  usual (m,t) values (typically such that m*t < 200).
+	  When this option is selected, the BCH library supports
+	  only a single (m,t) configuration. This is mainly useful
+	  for NAND flash board drivers requiring known, fixed BCH
+	  parameters.
+
+config BCH_CONST_M
+	int
+	range 5 15
+	help
+	  Constant value for Galois field order 'm'. If 'k' is the
+	  number of data bits to protect, 'm' should be chosen such
+	  that (k + m*t) <= 2**m - 1.
+	  Drivers should declare a default value for this symbol if
+	  they select option BCH_CONST_PARAMS.
+
+config BCH_CONST_T
+	int
+	help
+	  Constant value for error correction capability in bits 't'.
+	  Drivers should declare a default value for this symbol if
+	  they select option BCH_CONST_PARAMS.
+
+#
 # Textsearch support is select'ed if needed
 #
 config TEXTSEARCH
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index df9234c5f9d1..c768bcdda1b7 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -434,11 +434,9 @@ config DEBUG_KMEMLEAK_EARLY_LOG_SIZE
 
 config DEBUG_KMEMLEAK_TEST
 	tristate "Simple test for the kernel memory leak detector"
-	depends on DEBUG_KMEMLEAK
+	depends on DEBUG_KMEMLEAK && m
 	help
-	  Say Y or M here to build a test for the kernel memory leak
-	  detector. This option enables a module that explicitly leaks
-	  memory.
+	  This option enables a module that explicitly leaks memory.
 
 	  If unsure, say N.
 
diff --git a/lib/Makefile b/lib/Makefile
index d7872b5c4c1c..ef0f28571156 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -69,6 +69,7 @@ obj-$(CONFIG_GENERIC_ALLOCATOR) += genalloc.o
 obj-$(CONFIG_ZLIB_INFLATE) += zlib_inflate/
 obj-$(CONFIG_ZLIB_DEFLATE) += zlib_deflate/
 obj-$(CONFIG_REED_SOLOMON) += reed_solomon/
+obj-$(CONFIG_BCH) += bch.o
 obj-$(CONFIG_LZO_COMPRESS) += lzo/
 obj-$(CONFIG_LZO_DECOMPRESS) += lzo/
 obj-$(CONFIG_XZ_DEC) += xz/
diff --git a/lib/bch.c b/lib/bch.c
new file mode 100644
index 000000000000..bc89dfe4d1b3
--- /dev/null
+++ b/lib/bch.c
@@ -0,0 +1,1368 @@
+/*
+ * Generic binary BCH encoding/decoding library
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc., 51
+ * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Copyright © 2011 Parrot S.A.
+ *
+ * Author: Ivan Djelic <ivan.djelic@parrot.com>
+ *
+ * Description:
+ *
+ * This library provides runtime configurable encoding/decoding of binary
+ * Bose-Chaudhuri-Hocquenghem (BCH) codes.
+ *
+ * Call init_bch to get a pointer to a newly allocated bch_control structure for
+ * the given m (Galois field order), t (error correction capability) and
+ * (optional) primitive polynomial parameters.
+ *
+ * Call encode_bch to compute and store ecc parity bytes to a given buffer.
+ * Call decode_bch to detect and locate errors in received data.
+ *
+ * On systems supporting hw BCH features, intermediate results may be provided
+ * to decode_bch in order to skip certain steps. See decode_bch() documentation
+ * for details.
+ *
+ * Option CONFIG_BCH_CONST_PARAMS can be used to force fixed values of
+ * parameters m and t; thus allowing extra compiler optimizations and providing
+ * better (up to 2x) encoding performance. Using this option makes sense when
+ * (m,t) are fixed and known in advance, e.g. when using BCH error correction
+ * on a particular NAND flash device.
+ *
+ * Algorithmic details:
+ *
+ * Encoding is performed by processing 32 input bits in parallel, using 4
+ * remainder lookup tables.
+ *
+ * The final stage of decoding involves the following internal steps:
+ * a. Syndrome computation
+ * b. Error locator polynomial computation using Berlekamp-Massey algorithm
+ * c. Error locator root finding (by far the most expensive step)
+ *
+ * In this implementation, step c is not performed using the usual Chien search.
+ * Instead, an alternative approach described in [1] is used. It consists in
+ * factoring the error locator polynomial using the Berlekamp Trace algorithm
+ * (BTA) down to a certain degree (4), after which ad hoc low-degree polynomial
+ * solving techniques [2] are used. The resulting algorithm, called BTZ, yields
+ * much better performance than Chien search for usual (m,t) values (typically
+ * m >= 13, t < 32, see [1]).
+ *
+ * [1] B. Biswas, V. Herbert. Efficient root finding of polynomials over fields
+ * of characteristic 2, in: Western European Workshop on Research in Cryptology
+ * - WEWoRC 2009, Graz, Austria, LNCS, Springer, July 2009, to appear.
+ * [2] [Zin96] V.A. Zinoviev. On the solution of equations of degree 10 over
+ * finite fields GF(2^q). In Rapport de recherche INRIA no 2829, 1996.
+ */
+
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/bitops.h>
+#include <asm/byteorder.h>
+#include <linux/bch.h>
+
+#if defined(CONFIG_BCH_CONST_PARAMS)
+#define GF_M(_p)               (CONFIG_BCH_CONST_M)
+#define GF_T(_p)               (CONFIG_BCH_CONST_T)
+#define GF_N(_p)               ((1 << (CONFIG_BCH_CONST_M))-1)
+#else
+#define GF_M(_p)               ((_p)->m)
+#define GF_T(_p)               ((_p)->t)
+#define GF_N(_p)               ((_p)->n)
+#endif
+
+#define BCH_ECC_WORDS(_p)      DIV_ROUND_UP(GF_M(_p)*GF_T(_p), 32)
+#define BCH_ECC_BYTES(_p)      DIV_ROUND_UP(GF_M(_p)*GF_T(_p), 8)
+
+#ifndef dbg
+#define dbg(_fmt, args...)     do {} while (0)
+#endif
+
+/*
+ * represent a polynomial over GF(2^m)
+ */
+struct gf_poly {
+	unsigned int deg;    /* polynomial degree */
+	unsigned int c[0];   /* polynomial terms */
+};
+
+/* given its degree, compute a polynomial size in bytes */
+#define GF_POLY_SZ(_d) (sizeof(struct gf_poly)+((_d)+1)*sizeof(unsigned int))
+
+/* polynomial of degree 1 */
+struct gf_poly_deg1 {
+	struct gf_poly poly;
+	unsigned int   c[2];
+};
+
+/*
+ * same as encode_bch(), but process input data one byte at a time
+ */
+static void encode_bch_unaligned(struct bch_control *bch,
+				 const unsigned char *data, unsigned int len,
+				 uint32_t *ecc)
+{
+	int i;
+	const uint32_t *p;
+	const int l = BCH_ECC_WORDS(bch)-1;
+
+	while (len--) {
+		p = bch->mod8_tab + (l+1)*(((ecc[0] >> 24)^(*data++)) & 0xff);
+
+		for (i = 0; i < l; i++)
+			ecc[i] = ((ecc[i] << 8)|(ecc[i+1] >> 24))^(*p++);
+
+		ecc[l] = (ecc[l] << 8)^(*p);
+	}
+}
+
+/*
+ * convert ecc bytes to aligned, zero-padded 32-bit ecc words
+ */
+static void load_ecc8(struct bch_control *bch, uint32_t *dst,
+		      const uint8_t *src)
+{
+	uint8_t pad[4] = {0, 0, 0, 0};
+	unsigned int i, nwords = BCH_ECC_WORDS(bch)-1;
+
+	for (i = 0; i < nwords; i++, src += 4)
+		dst[i] = (src[0] << 24)|(src[1] << 16)|(src[2] << 8)|src[3];
+
+	memcpy(pad, src, BCH_ECC_BYTES(bch)-4*nwords);
+	dst[nwords] = (pad[0] << 24)|(pad[1] << 16)|(pad[2] << 8)|pad[3];
+}
+
+/*
+ * convert 32-bit ecc words to ecc bytes
+ */
+static void store_ecc8(struct bch_control *bch, uint8_t *dst,
+		       const uint32_t *src)
+{
+	uint8_t pad[4];
+	unsigned int i, nwords = BCH_ECC_WORDS(bch)-1;
+
+	for (i = 0; i < nwords; i++) {
+		*dst++ = (src[i] >> 24);
+		*dst++ = (src[i] >> 16) & 0xff;
+		*dst++ = (src[i] >>  8) & 0xff;
+		*dst++ = (src[i] >>  0) & 0xff;
+	}
+	pad[0] = (src[nwords] >> 24);
+	pad[1] = (src[nwords] >> 16) & 0xff;
+	pad[2] = (src[nwords] >>  8) & 0xff;
+	pad[3] = (src[nwords] >>  0) & 0xff;
+	memcpy(dst, pad, BCH_ECC_BYTES(bch)-4*nwords);
+}
+
+/**
+ * encode_bch - calculate BCH ecc parity of data
+ * @bch:   BCH control structure
+ * @data:  data to encode
+ * @len:   data length in bytes
+ * @ecc:   ecc parity data, must be initialized by caller
+ *
+ * The @ecc parity array is used both as input and output parameter, in order to
+ * allow incremental computations. It should be of the size indicated by member
+ * @ecc_bytes of @bch, and should be initialized to 0 before the first call.
+ *
+ * The exact number of computed ecc parity bits is given by member @ecc_bits of
+ * @bch; it may be less than m*t for large values of t.
+ */
+void encode_bch(struct bch_control *bch, const uint8_t *data,
+		unsigned int len, uint8_t *ecc)
+{
+	const unsigned int l = BCH_ECC_WORDS(bch)-1;
+	unsigned int i, mlen;
+	unsigned long m;
+	uint32_t w, r[l+1];
+	const uint32_t * const tab0 = bch->mod8_tab;
+	const uint32_t * const tab1 = tab0 + 256*(l+1);
+	const uint32_t * const tab2 = tab1 + 256*(l+1);
+	const uint32_t * const tab3 = tab2 + 256*(l+1);
+	const uint32_t *pdata, *p0, *p1, *p2, *p3;
+
+	if (ecc) {
+		/* load ecc parity bytes into internal 32-bit buffer */
+		load_ecc8(bch, bch->ecc_buf, ecc);
+	} else {
+		memset(bch->ecc_buf, 0, sizeof(r));
+	}
+
+	/* process first unaligned data bytes */
+	m = ((unsigned long)data) & 3;
+	if (m) {
+		mlen = (len < (4-m)) ? len : 4-m;
+		encode_bch_unaligned(bch, data, mlen, bch->ecc_buf);
+		data += mlen;
+		len  -= mlen;
+	}
+
+	/* process 32-bit aligned data words */
+	pdata = (uint32_t *)data;
+	mlen  = len/4;
+	data += 4*mlen;
+	len  -= 4*mlen;
+	memcpy(r, bch->ecc_buf, sizeof(r));
+
+	/*
+	 * split each 32-bit word into 4 polynomials of weight 8 as follows:
+	 *
+	 * 31 ...24  23 ...16  15 ... 8  7 ... 0
+	 * xxxxxxxx  yyyyyyyy  zzzzzzzz  tttttttt
+	 *                               tttttttt  mod g = r0 (precomputed)
+	 *                     zzzzzzzz  00000000  mod g = r1 (precomputed)
+	 *           yyyyyyyy  00000000  00000000  mod g = r2 (precomputed)
+	 * xxxxxxxx  00000000  00000000  00000000  mod g = r3 (precomputed)
+	 * xxxxxxxx  yyyyyyyy  zzzzzzzz  tttttttt  mod g = r0^r1^r2^r3
+	 */
+	while (mlen--) {
+		/* input data is read in big-endian format */
+		w = r[0]^cpu_to_be32(*pdata++);
+		p0 = tab0 + (l+1)*((w >>  0) & 0xff);
+		p1 = tab1 + (l+1)*((w >>  8) & 0xff);
+		p2 = tab2 + (l+1)*((w >> 16) & 0xff);
+		p3 = tab3 + (l+1)*((w >> 24) & 0xff);
+
+		for (i = 0; i < l; i++)
+			r[i] = r[i+1]^p0[i]^p1[i]^p2[i]^p3[i];
+
+		r[l] = p0[l]^p1[l]^p2[l]^p3[l];
+	}
+	memcpy(bch->ecc_buf, r, sizeof(r));
+
+	/* process last unaligned bytes */
+	if (len)
+		encode_bch_unaligned(bch, data, len, bch->ecc_buf);
+
+	/* store ecc parity bytes into original parity buffer */
+	if (ecc)
+		store_ecc8(bch, ecc, bch->ecc_buf);
+}
+EXPORT_SYMBOL_GPL(encode_bch);
+
+static inline int modulo(struct bch_control *bch, unsigned int v)
+{
+	const unsigned int n = GF_N(bch);
+	while (v >= n) {
+		v -= n;
+		v = (v & n) + (v >> GF_M(bch));
+	}
+	return v;
+}
+
+/*
+ * shorter and faster modulo function, only works when v < 2N.
+ */
+static inline int mod_s(struct bch_control *bch, unsigned int v)
+{
+	const unsigned int n = GF_N(bch);
+	return (v < n) ? v : v-n;
+}
+
+static inline int deg(unsigned int poly)
+{
+	/* polynomial degree is the most-significant bit index */
+	return fls(poly)-1;
+}
+
+static inline int parity(unsigned int x)
+{
+	/*
+	 * public domain code snippet, lifted from
+	 * http://www-graphics.stanford.edu/~seander/bithacks.html
+	 */
+	x ^= x >> 1;
+	x ^= x >> 2;
+	x = (x & 0x11111111U) * 0x11111111U;
+	return (x >> 28) & 1;
+}
+
+/* Galois field basic operations: multiply, divide, inverse, etc. */
+
+static inline unsigned int gf_mul(struct bch_control *bch, unsigned int a,
+				  unsigned int b)
+{
+	return (a && b) ? bch->a_pow_tab[mod_s(bch, bch->a_log_tab[a]+
+					       bch->a_log_tab[b])] : 0;
+}
+
+static inline unsigned int gf_sqr(struct bch_control *bch, unsigned int a)
+{
+	return a ? bch->a_pow_tab[mod_s(bch, 2*bch->a_log_tab[a])] : 0;
+}
+
+static inline unsigned int gf_div(struct bch_control *bch, unsigned int a,
+				  unsigned int b)
+{
+	return a ? bch->a_pow_tab[mod_s(bch, bch->a_log_tab[a]+
+					GF_N(bch)-bch->a_log_tab[b])] : 0;
+}
+
+static inline unsigned int gf_inv(struct bch_control *bch, unsigned int a)
+{
+	return bch->a_pow_tab[GF_N(bch)-bch->a_log_tab[a]];
+}
+
+static inline unsigned int a_pow(struct bch_control *bch, int i)
+{
+	return bch->a_pow_tab[modulo(bch, i)];
+}
+
+static inline int a_log(struct bch_control *bch, unsigned int x)
+{
+	return bch->a_log_tab[x];
+}
+
+static inline int a_ilog(struct bch_control *bch, unsigned int x)
+{
+	return mod_s(bch, GF_N(bch)-bch->a_log_tab[x]);
+}
+
+/*
+ * compute 2t syndromes of ecc polynomial, i.e. ecc(a^j) for j=1..2t
+ */
+static void compute_syndromes(struct bch_control *bch, uint32_t *ecc,
+			      unsigned int *syn)
+{
+	int i, j, s;
+	unsigned int m;
+	uint32_t poly;
+	const int t = GF_T(bch);
+
+	s = bch->ecc_bits;
+
+	/* make sure extra bits in last ecc word are cleared */
+	m = ((unsigned int)s) & 31;
+	if (m)
+		ecc[s/32] &= ~((1u << (32-m))-1);
+	memset(syn, 0, 2*t*sizeof(*syn));
+
+	/* compute v(a^j) for j=1 .. 2t-1 */
+	do {
+		poly = *ecc++;
+		s -= 32;
+		while (poly) {
+			i = deg(poly);
+			for (j = 0; j < 2*t; j += 2)
+				syn[j] ^= a_pow(bch, (j+1)*(i+s));
+
+			poly ^= (1 << i);
+		}
+	} while (s > 0);
+
+	/* v(a^(2j)) = v(a^j)^2 */
+	for (j = 0; j < t; j++)
+		syn[2*j+1] = gf_sqr(bch, syn[j]);
+}
+
+static void gf_poly_copy(struct gf_poly *dst, struct gf_poly *src)
+{
+	memcpy(dst, src, GF_POLY_SZ(src->deg));
+}
+
+static int compute_error_locator_polynomial(struct bch_control *bch,
+					    const unsigned int *syn)
+{
+	const unsigned int t = GF_T(bch);
+	const unsigned int n = GF_N(bch);
+	unsigned int i, j, tmp, l, pd = 1, d = syn[0];
+	struct gf_poly *elp = bch->elp;
+	struct gf_poly *pelp = bch->poly_2t[0];
+	struct gf_poly *elp_copy = bch->poly_2t[1];
+	int k, pp = -1;
+
+	memset(pelp, 0, GF_POLY_SZ(2*t));
+	memset(elp, 0, GF_POLY_SZ(2*t));
+
+	pelp->deg = 0;
+	pelp->c[0] = 1;
+	elp->deg = 0;
+	elp->c[0] = 1;
+
+	/* use simplified binary Berlekamp-Massey algorithm */
+	for (i = 0; (i < t) && (elp->deg <= t); i++) {
+		if (d) {
+			k = 2*i-pp;
+			gf_poly_copy(elp_copy, elp);
+			/* e[i+1](X) = e[i](X)+di*dp^-1*X^2(i-p)*e[p](X) */
+			tmp = a_log(bch, d)+n-a_log(bch, pd);
+			for (j = 0; j <= pelp->deg; j++) {
+				if (pelp->c[j]) {
+					l = a_log(bch, pelp->c[j]);
+					elp->c[j+k] ^= a_pow(bch, tmp+l);
+				}
+			}
+			/* compute l[i+1] = max(l[i]->c[l[p]+2*(i-p]) */
+			tmp = pelp->deg+k;
+			if (tmp > elp->deg) {
+				elp->deg = tmp;
+				gf_poly_copy(pelp, elp_copy);
+				pd = d;
+				pp = 2*i;
+			}
+		}
+		/* di+1 = S(2i+3)+elp[i+1].1*S(2i+2)+...+elp[i+1].lS(2i+3-l) */
+		if (i < t-1) {
+			d = syn[2*i+2];
+			for (j = 1; j <= elp->deg; j++)
+				d ^= gf_mul(bch, elp->c[j], syn[2*i+2-j]);
+		}
+	}
+	dbg("elp=%s\n", gf_poly_str(elp));
+	return (elp->deg > t) ? -1 : (int)elp->deg;
+}
+
+/*
+ * solve a m x m linear system in GF(2) with an expected number of solutions,
+ * and return the number of found solutions
+ */
+static int solve_linear_system(struct bch_control *bch, unsigned int *rows,
+			       unsigned int *sol, int nsol)
+{
+	const int m = GF_M(bch);
+	unsigned int tmp, mask;
+	int rem, c, r, p, k, param[m];
+
+	k = 0;
+	mask = 1 << m;
+
+	/* Gaussian elimination */
+	for (c = 0; c < m; c++) {
+		rem = 0;
+		p = c-k;
+		/* find suitable row for elimination */
+		for (r = p; r < m; r++) {
+			if (rows[r] & mask) {
+				if (r != p) {
+					tmp = rows[r];
+					rows[r] = rows[p];
+					rows[p] = tmp;
+				}
+				rem = r+1;
+				break;
+			}
+		}
+		if (rem) {
+			/* perform elimination on remaining rows */
+			tmp = rows[p];
+			for (r = rem; r < m; r++) {
+				if (rows[r] & mask)
+					rows[r] ^= tmp;
+			}
+		} else {
+			/* elimination not needed, store defective row index */
+			param[k++] = c;
+		}
+		mask >>= 1;
+	}
+	/* rewrite system, inserting fake parameter rows */
+	if (k > 0) {
+		p = k;
+		for (r = m-1; r >= 0; r--) {
+			if ((r > m-1-k) && rows[r])
+				/* system has no solution */
+				return 0;
+
+			rows[r] = (p && (r == param[p-1])) ?
+				p--, 1u << (m-r) : rows[r-p];
+		}
+	}
+
+	if (nsol != (1 << k))
+		/* unexpected number of solutions */
+		return 0;
+
+	for (p = 0; p < nsol; p++) {
+		/* set parameters for p-th solution */
+		for (c = 0; c < k; c++)
+			rows[param[c]] = (rows[param[c]] & ~1)|((p >> c) & 1);
+
+		/* compute unique solution */
+		tmp = 0;
+		for (r = m-1; r >= 0; r--) {
+			mask = rows[r] & (tmp|1);
+			tmp |= parity(mask) << (m-r);
+		}
+		sol[p] = tmp >> 1;
+	}
+	return nsol;
+}
+
+/*
+ * this function builds and solves a linear system for finding roots of a degree
+ * 4 affine monic polynomial X^4+aX^2+bX+c over GF(2^m).
+ */
+static int find_affine4_roots(struct bch_control *bch, unsigned int a,
+			      unsigned int b, unsigned int c,
+			      unsigned int *roots)
+{
+	int i, j, k;
+	const int m = GF_M(bch);
+	unsigned int mask = 0xff, t, rows[16] = {0,};
+
+	j = a_log(bch, b);
+	k = a_log(bch, a);
+	rows[0] = c;
+
+	/* buid linear system to solve X^4+aX^2+bX+c = 0 */
+	for (i = 0; i < m; i++) {
+		rows[i+1] = bch->a_pow_tab[4*i]^
+			(a ? bch->a_pow_tab[mod_s(bch, k)] : 0)^
+			(b ? bch->a_pow_tab[mod_s(bch, j)] : 0);
+		j++;
+		k += 2;
+	}
+	/*
+	 * transpose 16x16 matrix before passing it to linear solver
+	 * warning: this code assumes m < 16
+	 */
+	for (j = 8; j != 0; j >>= 1, mask ^= (mask << j)) {
+		for (k = 0; k < 16; k = (k+j+1) & ~j) {
+			t = ((rows[k] >> j)^rows[k+j]) & mask;
+			rows[k] ^= (t << j);
+			rows[k+j] ^= t;
+		}
+	}
+	return solve_linear_system(bch, rows, roots, 4);
+}
+
+/*
+ * compute root r of a degree 1 polynomial over GF(2^m) (returned as log(1/r))
+ */
+static int find_poly_deg1_roots(struct bch_control *bch, struct gf_poly *poly,
+				unsigned int *roots)
+{
+	int n = 0;
+
+	if (poly->c[0])
+		/* poly[X] = bX+c with c!=0, root=c/b */
+		roots[n++] = mod_s(bch, GF_N(bch)-bch->a_log_tab[poly->c[0]]+
+				   bch->a_log_tab[poly->c[1]]);
+	return n;
+}
+
+/*
+ * compute roots of a degree 2 polynomial over GF(2^m)
+ */
+static int find_poly_deg2_roots(struct bch_control *bch, struct gf_poly *poly,
+				unsigned int *roots)
+{
+	int n = 0, i, l0, l1, l2;
+	unsigned int u, v, r;
+
+	if (poly->c[0] && poly->c[1]) {
+
+		l0 = bch->a_log_tab[poly->c[0]];
+		l1 = bch->a_log_tab[poly->c[1]];
+		l2 = bch->a_log_tab[poly->c[2]];
+
+		/* using z=a/bX, transform aX^2+bX+c into z^2+z+u (u=ac/b^2) */
+		u = a_pow(bch, l0+l2+2*(GF_N(bch)-l1));
+		/*
+		 * let u = sum(li.a^i) i=0..m-1; then compute r = sum(li.xi):
+		 * r^2+r = sum(li.(xi^2+xi)) = sum(li.(a^i+Tr(a^i).a^k)) =
+		 * u + sum(li.Tr(a^i).a^k) = u+a^k.Tr(sum(li.a^i)) = u+a^k.Tr(u)
+		 * i.e. r and r+1 are roots iff Tr(u)=0
+		 */
+		r = 0;
+		v = u;
+		while (v) {
+			i = deg(v);
+			r ^= bch->xi_tab[i];
+			v ^= (1 << i);
+		}
+		/* verify root */
+		if ((gf_sqr(bch, r)^r) == u) {
+			/* reverse z=a/bX transformation and compute log(1/r) */
+			roots[n++] = modulo(bch, 2*GF_N(bch)-l1-
+					    bch->a_log_tab[r]+l2);
+			roots[n++] = modulo(bch, 2*GF_N(bch)-l1-
+					    bch->a_log_tab[r^1]+l2);
+		}
+	}
+	return n;
+}
+
+/*
+ * compute roots of a degree 3 polynomial over GF(2^m)
+ */
+static int find_poly_deg3_roots(struct bch_control *bch, struct gf_poly *poly,
+				unsigned int *roots)
+{
+	int i, n = 0;
+	unsigned int a, b, c, a2, b2, c2, e3, tmp[4];
+
+	if (poly->c[0]) {
+		/* transform polynomial into monic X^3 + a2X^2 + b2X + c2 */
+		e3 = poly->c[3];
+		c2 = gf_div(bch, poly->c[0], e3);
+		b2 = gf_div(bch, poly->c[1], e3);
+		a2 = gf_div(bch, poly->c[2], e3);
+
+		/* (X+a2)(X^3+a2X^2+b2X+c2) = X^4+aX^2+bX+c (affine) */
+		c = gf_mul(bch, a2, c2);           /* c = a2c2      */
+		b = gf_mul(bch, a2, b2)^c2;        /* b = a2b2 + c2 */
+		a = gf_sqr(bch, a2)^b2;            /* a = a2^2 + b2 */
+
+		/* find the 4 roots of this affine polynomial */
+		if (find_affine4_roots(bch, a, b, c, tmp) == 4) {
+			/* remove a2 from final list of roots */
+			for (i = 0; i < 4; i++) {
+				if (tmp[i] != a2)
+					roots[n++] = a_ilog(bch, tmp[i]);
+			}
+		}
+	}
+	return n;
+}
+
+/*
+ * compute roots of a degree 4 polynomial over GF(2^m)
+ */
+static int find_poly_deg4_roots(struct bch_control *bch, struct gf_poly *poly,
+				unsigned int *roots)
+{
+	int i, l, n = 0;
+	unsigned int a, b, c, d, e = 0, f, a2, b2, c2, e4;
+
+	if (poly->c[0] == 0)
+		return 0;
+
+	/* transform polynomial into monic X^4 + aX^3 + bX^2 + cX + d */
+	e4 = poly->c[4];
+	d = gf_div(bch, poly->c[0], e4);
+	c = gf_div(bch, poly->c[1], e4);
+	b = gf_div(bch, poly->c[2], e4);
+	a = gf_div(bch, poly->c[3], e4);
+
+	/* use Y=1/X transformation to get an affine polynomial */
+	if (a) {
+		/* first, eliminate cX by using z=X+e with ae^2+c=0 */
+		if (c) {
+			/* compute e such that e^2 = c/a */
+			f = gf_div(bch, c, a);
+			l = a_log(bch, f);
+			l += (l & 1) ? GF_N(bch) : 0;
+			e = a_pow(bch, l/2);
+			/*
+			 * use transformation z=X+e:
+			 * z^4+e^4 + a(z^3+ez^2+e^2z+e^3) + b(z^2+e^2) +cz+ce+d
+			 * z^4 + az^3 + (ae+b)z^2 + (ae^2+c)z+e^4+be^2+ae^3+ce+d
+			 * z^4 + az^3 + (ae+b)z^2 + e^4+be^2+d
+			 * z^4 + az^3 +     b'z^2 + d'
+			 */
+			d = a_pow(bch, 2*l)^gf_mul(bch, b, f)^d;
+			b = gf_mul(bch, a, e)^b;
+		}
+		/* now, use Y=1/X to get Y^4 + b/dY^2 + a/dY + 1/d */
+		if (d == 0)
+			/* assume all roots have multiplicity 1 */
+			return 0;
+
+		c2 = gf_inv(bch, d);
+		b2 = gf_div(bch, a, d);
+		a2 = gf_div(bch, b, d);
+	} else {
+		/* polynomial is already affine */
+		c2 = d;
+		b2 = c;
+		a2 = b;
+	}
+	/* find the 4 roots of this affine polynomial */
+	if (find_affine4_roots(bch, a2, b2, c2, roots) == 4) {
+		for (i = 0; i < 4; i++) {
+			/* post-process roots (reverse transformations) */
+			f = a ? gf_inv(bch, roots[i]) : roots[i];
+			roots[i] = a_ilog(bch, f^e);
+		}
+		n = 4;
+	}
+	return n;
+}
+
+/*
+ * build monic, log-based representation of a polynomial
+ */
+static void gf_poly_logrep(struct bch_control *bch,
+			   const struct gf_poly *a, int *rep)
+{
+	int i, d = a->deg, l = GF_N(bch)-a_log(bch, a->c[a->deg]);
+
+	/* represent 0 values with -1; warning, rep[d] is not set to 1 */
+	for (i = 0; i < d; i++)
+		rep[i] = a->c[i] ? mod_s(bch, a_log(bch, a->c[i])+l) : -1;
+}
+
+/*
+ * compute polynomial Euclidean division remainder in GF(2^m)[X]
+ */
+static void gf_poly_mod(struct bch_control *bch, struct gf_poly *a,
+			const struct gf_poly *b, int *rep)
+{
+	int la, p, m;
+	unsigned int i, j, *c = a->c;
+	const unsigned int d = b->deg;
+
+	if (a->deg < d)
+		return;
+
+	/* reuse or compute log representation of denominator */
+	if (!rep) {
+		rep = bch->cache;
+		gf_poly_logrep(bch, b, rep);
+	}
+
+	for (j = a->deg; j >= d; j--) {
+		if (c[j]) {
+			la = a_log(bch, c[j]);
+			p = j-d;
+			for (i = 0; i < d; i++, p++) {
+				m = rep[i];
+				if (m >= 0)
+					c[p] ^= bch->a_pow_tab[mod_s(bch,
+								     m+la)];
+			}
+		}
+	}
+	a->deg = d-1;
+	while (!c[a->deg] && a->deg)
+		a->deg--;
+}
+
+/*
+ * compute polynomial Euclidean division quotient in GF(2^m)[X]
+ */
+static void gf_poly_div(struct bch_control *bch, struct gf_poly *a,
+			const struct gf_poly *b, struct gf_poly *q)
+{
+	if (a->deg >= b->deg) {
+		q->deg = a->deg-b->deg;
+		/* compute a mod b (modifies a) */
+		gf_poly_mod(bch, a, b, NULL);
+		/* quotient is stored in upper part of polynomial a */
+		memcpy(q->c, &a->c[b->deg], (1+q->deg)*sizeof(unsigned int));
+	} else {
+		q->deg = 0;
+		q->c[0] = 0;
+	}
+}
+
+/*
+ * compute polynomial GCD (Greatest Common Divisor) in GF(2^m)[X]
+ */
+static struct gf_poly *gf_poly_gcd(struct bch_control *bch, struct gf_poly *a,
+				   struct gf_poly *b)
+{
+	struct gf_poly *tmp;
+
+	dbg("gcd(%s,%s)=", gf_poly_str(a), gf_poly_str(b));
+
+	if (a->deg < b->deg) {
+		tmp = b;
+		b = a;
+		a = tmp;
+	}
+
+	while (b->deg > 0) {
+		gf_poly_mod(bch, a, b, NULL);
+		tmp = b;
+		b = a;
+		a = tmp;
+	}
+
+	dbg("%s\n", gf_poly_str(a));
+
+	return a;
+}
+
+/*
+ * Given a polynomial f and an integer k, compute Tr(a^kX) mod f
+ * This is used in Berlekamp Trace algorithm for splitting polynomials
+ */
+static void compute_trace_bk_mod(struct bch_control *bch, int k,
+				 const struct gf_poly *f, struct gf_poly *z,
+				 struct gf_poly *out)
+{
+	const int m = GF_M(bch);
+	int i, j;
+
+	/* z contains z^2j mod f */
+	z->deg = 1;
+	z->c[0] = 0;
+	z->c[1] = bch->a_pow_tab[k];
+
+	out->deg = 0;
+	memset(out, 0, GF_POLY_SZ(f->deg));
+
+	/* compute f log representation only once */
+	gf_poly_logrep(bch, f, bch->cache);
+
+	for (i = 0; i < m; i++) {
+		/* add a^(k*2^i)(z^(2^i) mod f) and compute (z^(2^i) mod f)^2 */
+		for (j = z->deg; j >= 0; j--) {
+			out->c[j] ^= z->c[j];
+			z->c[2*j] = gf_sqr(bch, z->c[j]);
+			z->c[2*j+1] = 0;
+		}
+		if (z->deg > out->deg)
+			out->deg = z->deg;
+
+		if (i < m-1) {
+			z->deg *= 2;
+			/* z^(2(i+1)) mod f = (z^(2^i) mod f)^2 mod f */
+			gf_poly_mod(bch, z, f, bch->cache);
+		}
+	}
+	while (!out->c[out->deg] && out->deg)
+		out->deg--;
+
+	dbg("Tr(a^%d.X) mod f = %s\n", k, gf_poly_str(out));
+}
+
+/*
+ * factor a polynomial using Berlekamp Trace algorithm (BTA)
+ */
+static void factor_polynomial(struct bch_control *bch, int k, struct gf_poly *f,
+			      struct gf_poly **g, struct gf_poly **h)
+{
+	struct gf_poly *f2 = bch->poly_2t[0];
+	struct gf_poly *q  = bch->poly_2t[1];
+	struct gf_poly *tk = bch->poly_2t[2];
+	struct gf_poly *z  = bch->poly_2t[3];
+	struct gf_poly *gcd;
+
+	dbg("factoring %s...\n", gf_poly_str(f));
+
+	*g = f;
+	*h = NULL;
+
+	/* tk = Tr(a^k.X) mod f */
+	compute_trace_bk_mod(bch, k, f, z, tk);
+
+	if (tk->deg > 0) {
+		/* compute g = gcd(f, tk) (destructive operation) */
+		gf_poly_copy(f2, f);
+		gcd = gf_poly_gcd(bch, f2, tk);
+		if (gcd->deg < f->deg) {
+			/* compute h=f/gcd(f,tk); this will modify f and q */
+			gf_poly_div(bch, f, gcd, q);
+			/* store g and h in-place (clobbering f) */
+			*h = &((struct gf_poly_deg1 *)f)[gcd->deg].poly;
+			gf_poly_copy(*g, gcd);
+			gf_poly_copy(*h, q);
+		}
+	}
+}
+
+/*
+ * find roots of a polynomial, using BTZ algorithm; see the beginning of this
+ * file for details
+ */
+static int find_poly_roots(struct bch_control *bch, unsigned int k,
+			   struct gf_poly *poly, unsigned int *roots)
+{
+	int cnt;
+	struct gf_poly *f1, *f2;
+
+	switch (poly->deg) {
+		/* handle low degree polynomials with ad hoc techniques */
+	case 1:
+		cnt = find_poly_deg1_roots(bch, poly, roots);
+		break;
+	case 2:
+		cnt = find_poly_deg2_roots(bch, poly, roots);
+		break;
+	case 3:
+		cnt = find_poly_deg3_roots(bch, poly, roots);
+		break;
+	case 4:
+		cnt = find_poly_deg4_roots(bch, poly, roots);
+		break;
+	default:
+		/* factor polynomial using Berlekamp Trace Algorithm (BTA) */
+		cnt = 0;
+		if (poly->deg && (k <= GF_M(bch))) {
+			factor_polynomial(bch, k, poly, &f1, &f2);
+			if (f1)
+				cnt += find_poly_roots(bch, k+1, f1, roots);
+			if (f2)
+				cnt += find_poly_roots(bch, k+1, f2, roots+cnt);
+		}
+		break;
+	}
+	return cnt;
+}
+
+#if defined(USE_CHIEN_SEARCH)
+/*
+ * exhaustive root search (Chien) implementation - not used, included only for
+ * reference/comparison tests
+ */
+static int chien_search(struct bch_control *bch, unsigned int len,
+			struct gf_poly *p, unsigned int *roots)
+{
+	int m;
+	unsigned int i, j, syn, syn0, count = 0;
+	const unsigned int k = 8*len+bch->ecc_bits;
+
+	/* use a log-based representation of polynomial */
+	gf_poly_logrep(bch, p, bch->cache);
+	bch->cache[p->deg] = 0;
+	syn0 = gf_div(bch, p->c[0], p->c[p->deg]);
+
+	for (i = GF_N(bch)-k+1; i <= GF_N(bch); i++) {
+		/* compute elp(a^i) */
+		for (j = 1, syn = syn0; j <= p->deg; j++) {
+			m = bch->cache[j];
+			if (m >= 0)
+				syn ^= a_pow(bch, m+j*i);
+		}
+		if (syn == 0) {
+			roots[count++] = GF_N(bch)-i;
+			if (count == p->deg)
+				break;
+		}
+	}
+	return (count == p->deg) ? count : 0;
+}
+#define find_poly_roots(_p, _k, _elp, _loc) chien_search(_p, len, _elp, _loc)
+#endif /* USE_CHIEN_SEARCH */
+
+/**
+ * decode_bch - decode received codeword and find bit error locations
+ * @bch:      BCH control structure
+ * @data:     received data, ignored if @calc_ecc is provided
+ * @len:      data length in bytes, must always be provided
+ * @recv_ecc: received ecc, if NULL then assume it was XORed in @calc_ecc
+ * @calc_ecc: calculated ecc, if NULL then calc_ecc is computed from @data
+ * @syn:      hw computed syndrome data (if NULL, syndrome is calculated)
+ * @errloc:   output array of error locations
+ *
+ * Returns:
+ *  The number of errors found, or -EBADMSG if decoding failed, or -EINVAL if
+ *  invalid parameters were provided
+ *
+ * Depending on the available hw BCH support and the need to compute @calc_ecc
+ * separately (using encode_bch()), this function should be called with one of
+ * the following parameter configurations -
+ *
+ * by providing @data and @recv_ecc only:
+ *   decode_bch(@bch, @data, @len, @recv_ecc, NULL, NULL, @errloc)
+ *
+ * by providing @recv_ecc and @calc_ecc:
+ *   decode_bch(@bch, NULL, @len, @recv_ecc, @calc_ecc, NULL, @errloc)
+ *
+ * by providing ecc = recv_ecc XOR calc_ecc:
+ *   decode_bch(@bch, NULL, @len, NULL, ecc, NULL, @errloc)
+ *
+ * by providing syndrome results @syn:
+ *   decode_bch(@bch, NULL, @len, NULL, NULL, @syn, @errloc)
+ *
+ * Once decode_bch() has successfully returned with a positive value, error
+ * locations returned in array @errloc should be interpreted as follows -
+ *
+ * if (errloc[n] >= 8*len), then n-th error is located in ecc (no need for
+ * data correction)
+ *
+ * if (errloc[n] < 8*len), then n-th error is located in data and can be
+ * corrected with statement data[errloc[n]/8] ^= 1 << (errloc[n] % 8);
+ *
+ * Note that this function does not perform any data correction by itself, it
+ * merely indicates error locations.
+ */
+int decode_bch(struct bch_control *bch, const uint8_t *data, unsigned int len,
+	       const uint8_t *recv_ecc, const uint8_t *calc_ecc,
+	       const unsigned int *syn, unsigned int *errloc)
+{
+	const unsigned int ecc_words = BCH_ECC_WORDS(bch);
+	unsigned int nbits;
+	int i, err, nroots;
+	uint32_t sum;
+
+	/* sanity check: make sure data length can be handled */
+	if (8*len > (bch->n-bch->ecc_bits))
+		return -EINVAL;
+
+	/* if caller does not provide syndromes, compute them */
+	if (!syn) {
+		if (!calc_ecc) {
+			/* compute received data ecc into an internal buffer */
+			if (!data || !recv_ecc)
+				return -EINVAL;
+			encode_bch(bch, data, len, NULL);
+		} else {
+			/* load provided calculated ecc */
+			load_ecc8(bch, bch->ecc_buf, calc_ecc);
+		}
+		/* load received ecc or assume it was XORed in calc_ecc */
+		if (recv_ecc) {
+			load_ecc8(bch, bch->ecc_buf2, recv_ecc);
+			/* XOR received and calculated ecc */
+			for (i = 0, sum = 0; i < (int)ecc_words; i++) {
+				bch->ecc_buf[i] ^= bch->ecc_buf2[i];
+				sum |= bch->ecc_buf[i];
+			}
+			if (!sum)
+				/* no error found */
+				return 0;
+		}
+		compute_syndromes(bch, bch->ecc_buf, bch->syn);
+		syn = bch->syn;
+	}
+
+	err = compute_error_locator_polynomial(bch, syn);
+	if (err > 0) {
+		nroots = find_poly_roots(bch, 1, bch->elp, errloc);
+		if (err != nroots)
+			err = -1;
+	}
+	if (err > 0) {
+		/* post-process raw error locations for easier correction */
+		nbits = (len*8)+bch->ecc_bits;
+		for (i = 0; i < err; i++) {
+			if (errloc[i] >= nbits) {
+				err = -1;
+				break;
+			}
+			errloc[i] = nbits-1-errloc[i];
+			errloc[i] = (errloc[i] & ~7)|(7-(errloc[i] & 7));
+		}
+	}
+	return (err >= 0) ? err : -EBADMSG;
+}
+EXPORT_SYMBOL_GPL(decode_bch);
+
+/*
+ * generate Galois field lookup tables
+ */
+static int build_gf_tables(struct bch_control *bch, unsigned int poly)
+{
+	unsigned int i, x = 1;
+	const unsigned int k = 1 << deg(poly);
+
+	/* primitive polynomial must be of degree m */
+	if (k != (1u << GF_M(bch)))
+		return -1;
+
+	for (i = 0; i < GF_N(bch); i++) {
+		bch->a_pow_tab[i] = x;
+		bch->a_log_tab[x] = i;
+		if (i && (x == 1))
+			/* polynomial is not primitive (a^i=1 with 0<i<2^m-1) */
+			return -1;
+		x <<= 1;
+		if (x & k)
+			x ^= poly;
+	}
+	bch->a_pow_tab[GF_N(bch)] = 1;
+	bch->a_log_tab[0] = 0;
+
+	return 0;
+}
+
+/*
+ * compute generator polynomial remainder tables for fast encoding
+ */
+static void build_mod8_tables(struct bch_control *bch, const uint32_t *g)
+{
+	int i, j, b, d;
+	uint32_t data, hi, lo, *tab;
+	const int l = BCH_ECC_WORDS(bch);
+	const int plen = DIV_ROUND_UP(bch->ecc_bits+1, 32);
+	const int ecclen = DIV_ROUND_UP(bch->ecc_bits, 32);
+
+	memset(bch->mod8_tab, 0, 4*256*l*sizeof(*bch->mod8_tab));
+
+	for (i = 0; i < 256; i++) {
+		/* p(X)=i is a small polynomial of weight <= 8 */
+		for (b = 0; b < 4; b++) {
+			/* we want to compute (p(X).X^(8*b+deg(g))) mod g(X) */
+			tab = bch->mod8_tab + (b*256+i)*l;
+			data = i << (8*b);
+			while (data) {
+				d = deg(data);
+				/* subtract X^d.g(X) from p(X).X^(8*b+deg(g)) */
+				data ^= g[0] >> (31-d);
+				for (j = 0; j < ecclen; j++) {
+					hi = (d < 31) ? g[j] << (d+1) : 0;
+					lo = (j+1 < plen) ?
+						g[j+1] >> (31-d) : 0;
+					tab[j] ^= hi|lo;
+				}
+			}
+		}
+	}
+}
+
+/*
+ * build a base for factoring degree 2 polynomials
+ */
+static int build_deg2_base(struct bch_control *bch)
+{
+	const int m = GF_M(bch);
+	int i, j, r;
+	unsigned int sum, x, y, remaining, ak = 0, xi[m];
+
+	/* find k s.t. Tr(a^k) = 1 and 0 <= k < m */
+	for (i = 0; i < m; i++) {
+		for (j = 0, sum = 0; j < m; j++)
+			sum ^= a_pow(bch, i*(1 << j));
+
+		if (sum) {
+			ak = bch->a_pow_tab[i];
+			break;
+		}
+	}
+	/* find xi, i=0..m-1 such that xi^2+xi = a^i+Tr(a^i).a^k */
+	remaining = m;
+	memset(xi, 0, sizeof(xi));
+
+	for (x = 0; (x <= GF_N(bch)) && remaining; x++) {
+		y = gf_sqr(bch, x)^x;
+		for (i = 0; i < 2; i++) {
+			r = a_log(bch, y);
+			if (y && (r < m) && !xi[r]) {
+				bch->xi_tab[r] = x;
+				xi[r] = 1;
+				remaining--;
+				dbg("x%d = %x\n", r, x);
+				break;
+			}
+			y ^= ak;
+		}
+	}
+	/* should not happen but check anyway */
+	return remaining ? -1 : 0;
+}
+
+static void *bch_alloc(size_t size, int *err)
+{
+	void *ptr;
+
+	ptr = kmalloc(size, GFP_KERNEL);
+	if (ptr == NULL)
+		*err = 1;
+	return ptr;
+}
+
+/*
+ * compute generator polynomial for given (m,t) parameters.
+ */
+static uint32_t *compute_generator_polynomial(struct bch_control *bch)
+{
+	const unsigned int m = GF_M(bch);
+	const unsigned int t = GF_T(bch);
+	int n, err = 0;
+	unsigned int i, j, nbits, r, word, *roots;
+	struct gf_poly *g;
+	uint32_t *genpoly;
+
+	g = bch_alloc(GF_POLY_SZ(m*t), &err);
+	roots = bch_alloc((bch->n+1)*sizeof(*roots), &err);
+	genpoly = bch_alloc(DIV_ROUND_UP(m*t+1, 32)*sizeof(*genpoly), &err);
+
+	if (err) {
+		kfree(genpoly);
+		genpoly = NULL;
+		goto finish;
+	}
+
+	/* enumerate all roots of g(X) */
+	memset(roots , 0, (bch->n+1)*sizeof(*roots));
+	for (i = 0; i < t; i++) {
+		for (j = 0, r = 2*i+1; j < m; j++) {
+			roots[r] = 1;
+			r = mod_s(bch, 2*r);
+		}
+	}
+	/* build generator polynomial g(X) */
+	g->deg = 0;
+	g->c[0] = 1;
+	for (i = 0; i < GF_N(bch); i++) {
+		if (roots[i]) {
+			/* multiply g(X) by (X+root) */
+			r = bch->a_pow_tab[i];
+			g->c[g->deg+1] = 1;
+			for (j = g->deg; j > 0; j--)
+				g->c[j] = gf_mul(bch, g->c[j], r)^g->c[j-1];
+
+			g->c[0] = gf_mul(bch, g->c[0], r);
+			g->deg++;
+		}
+	}
+	/* store left-justified binary representation of g(X) */
+	n = g->deg+1;
+	i = 0;
+
+	while (n > 0) {
+		nbits = (n > 32) ? 32 : n;
+		for (j = 0, word = 0; j < nbits; j++) {
+			if (g->c[n-1-j])
+				word |= 1u << (31-j);
+		}
+		genpoly[i++] = word;
+		n -= nbits;
+	}
+	bch->ecc_bits = g->deg;
+
+finish:
+	kfree(g);
+	kfree(roots);
+
+	return genpoly;
+}
+
+/**
+ * init_bch - initialize a BCH encoder/decoder
+ * @m:          Galois field order, should be in the range 5-15
+ * @t:          maximum error correction capability, in bits
+ * @prim_poly:  user-provided primitive polynomial (or 0 to use default)
+ *
+ * Returns:
+ *  a newly allocated BCH control structure if successful, NULL otherwise
+ *
+ * This initialization can take some time, as lookup tables are built for fast
+ * encoding/decoding; make sure not to call this function from a time critical
+ * path. Usually, init_bch() should be called on module/driver init and
+ * free_bch() should be called to release memory on exit.
+ *
+ * You may provide your own primitive polynomial of degree @m in argument
+ * @prim_poly, or let init_bch() use its default polynomial.
+ *
+ * Once init_bch() has successfully returned a pointer to a newly allocated
+ * BCH control structure, ecc length in bytes is given by member @ecc_bytes of
+ * the structure.
+ */
+struct bch_control *init_bch(int m, int t, unsigned int prim_poly)
+{
+	int err = 0;
+	unsigned int i, words;
+	uint32_t *genpoly;
+	struct bch_control *bch = NULL;
+
+	const int min_m = 5;
+	const int max_m = 15;
+
+	/* default primitive polynomials */
+	static const unsigned int prim_poly_tab[] = {
+		0x25, 0x43, 0x83, 0x11d, 0x211, 0x409, 0x805, 0x1053, 0x201b,
+		0x402b, 0x8003,
+	};
+
+#if defined(CONFIG_BCH_CONST_PARAMS)
+	if ((m != (CONFIG_BCH_CONST_M)) || (t != (CONFIG_BCH_CONST_T))) {
+		printk(KERN_ERR "bch encoder/decoder was configured to support "
+		       "parameters m=%d, t=%d only!\n",
+		       CONFIG_BCH_CONST_M, CONFIG_BCH_CONST_T);
+		goto fail;
+	}
+#endif
+	if ((m < min_m) || (m > max_m))
+		/*
+		 * values of m greater than 15 are not currently supported;
+		 * supporting m > 15 would require changing table base type
+		 * (uint16_t) and a small patch in matrix transposition
+		 */
+		goto fail;
+
+	/* sanity checks */
+	if ((t < 1) || (m*t >= ((1 << m)-1)))
+		/* invalid t value */
+		goto fail;
+
+	/* select a primitive polynomial for generating GF(2^m) */
+	if (prim_poly == 0)
+		prim_poly = prim_poly_tab[m-min_m];
+
+	bch = kzalloc(sizeof(*bch), GFP_KERNEL);
+	if (bch == NULL)
+		goto fail;
+
+	bch->m = m;
+	bch->t = t;
+	bch->n = (1 << m)-1;
+	words  = DIV_ROUND_UP(m*t, 32);
+	bch->ecc_bytes = DIV_ROUND_UP(m*t, 8);
+	bch->a_pow_tab = bch_alloc((1+bch->n)*sizeof(*bch->a_pow_tab), &err);
+	bch->a_log_tab = bch_alloc((1+bch->n)*sizeof(*bch->a_log_tab), &err);
+	bch->mod8_tab  = bch_alloc(words*1024*sizeof(*bch->mod8_tab), &err);
+	bch->ecc_buf   = bch_alloc(words*sizeof(*bch->ecc_buf), &err);
+	bch->ecc_buf2  = bch_alloc(words*sizeof(*bch->ecc_buf2), &err);
+	bch->xi_tab    = bch_alloc(m*sizeof(*bch->xi_tab), &err);
+	bch->syn       = bch_alloc(2*t*sizeof(*bch->syn), &err);
+	bch->cache     = bch_alloc(2*t*sizeof(*bch->cache), &err);
+	bch->elp       = bch_alloc((t+1)*sizeof(struct gf_poly_deg1), &err);
+
+	for (i = 0; i < ARRAY_SIZE(bch->poly_2t); i++)
+		bch->poly_2t[i] = bch_alloc(GF_POLY_SZ(2*t), &err);
+
+	if (err)
+		goto fail;
+
+	err = build_gf_tables(bch, prim_poly);
+	if (err)
+		goto fail;
+
+	/* use generator polynomial for computing encoding tables */
+	genpoly = compute_generator_polynomial(bch);
+	if (genpoly == NULL)
+		goto fail;
+
+	build_mod8_tables(bch, genpoly);
+	kfree(genpoly);
+
+	err = build_deg2_base(bch);
+	if (err)
+		goto fail;
+
+	return bch;
+
+fail:
+	free_bch(bch);
+	return NULL;
+}
+EXPORT_SYMBOL_GPL(init_bch);
+
+/**
+ *  free_bch - free the BCH control structure
+ *  @bch:    BCH control structure to release
+ */
+void free_bch(struct bch_control *bch)
+{
+	unsigned int i;
+
+	if (bch) {
+		kfree(bch->a_pow_tab);
+		kfree(bch->a_log_tab);
+		kfree(bch->mod8_tab);
+		kfree(bch->ecc_buf);
+		kfree(bch->ecc_buf2);
+		kfree(bch->xi_tab);
+		kfree(bch->syn);
+		kfree(bch->cache);
+		kfree(bch->elp);
+
+		for (i = 0; i < ARRAY_SIZE(bch->poly_2t); i++)
+			kfree(bch->poly_2t[i]);
+
+		kfree(bch);
+	}
+}
+EXPORT_SYMBOL_GPL(free_bch);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Ivan Djelic <ivan.djelic@parrot.com>");
+MODULE_DESCRIPTION("Binary BCH encoder/decoder");
diff --git a/lib/bitmap.c b/lib/bitmap.c
index 741fae905ae3..91e0ccfdb424 100644
--- a/lib/bitmap.c
+++ b/lib/bitmap.c
@@ -830,7 +830,7 @@ EXPORT_SYMBOL(bitmap_bitremap);
  *  @orig (i.e. bits 3, 5, 7 and 9) were also set.
  *
  *  When bit 11 is set in @orig, it means turn on the bit in
- *  @dst corresponding to whatever is the twelth bit that is
+ *  @dst corresponding to whatever is the twelfth bit that is
  *  turned on in @relmap.  In the above example, there were
  *  only ten bits turned on in @relmap (30..39), so that bit
  *  11 was set in @orig had no affect on @dst.
diff --git a/lib/btree.c b/lib/btree.c
index c9c6f0351526..2a34392bcecc 100644
--- a/lib/btree.c
+++ b/lib/btree.c
@@ -11,7 +11,7 @@
  * see http://programming.kicks-ass.net/kernel-patches/vma_lookup/btree.patch
  *
  * A relatively simple B+Tree implementation.  I have written it as a learning
- * excercise to understand how B+Trees work.  Turned out to be useful as well.
+ * exercise to understand how B+Trees work.  Turned out to be useful as well.
  *
  * B+Trees can be used similar to Linux radix trees (which don't have anything
  * in common with textbook radix trees, beware).  Prerequisite for them working
@@ -541,7 +541,7 @@ static void rebalance(struct btree_head *head, struct btree_geo *geo,
 	int i, no_left, no_right;
 
 	if (fill == 0) {
-		/* Because we don't steal entries from a neigbour, this case
+		/* Because we don't steal entries from a neighbour, this case
 		 * can happen.  Parent node contains a single child, this
 		 * node, so merging with a sibling never happens.
 		 */
diff --git a/lib/decompress_unxz.c b/lib/decompress_unxz.c
index cecd23df2b9a..9f34eb56854d 100644
--- a/lib/decompress_unxz.c
+++ b/lib/decompress_unxz.c
@@ -83,7 +83,7 @@
  *    safety_margin = 128 + uncompressed_size * 8 / 32768 + 65536
  *                  = 128 + (uncompressed_size >> 12) + 65536
  *
- * For comparision, according to arch/x86/boot/compressed/misc.c, the
+ * For comparison, according to arch/x86/boot/compressed/misc.c, the
  * equivalent formula for Deflate is this:
  *
  *    safety_margin = 18 + (uncompressed_size >> 12) + 32768
diff --git a/lib/parser.c b/lib/parser.c
index 6e89eca5cca0..dcbaaef6cf11 100644
--- a/lib/parser.c
+++ b/lib/parser.c
@@ -13,7 +13,7 @@
 
 /**
  * match_one: - Determines if a string matches a simple pattern
- * @s: the string to examine for presense of the pattern
+ * @s: the string to examine for presence of the pattern
  * @p: the string containing the pattern
  * @args: array of %MAX_OPT_ARGS &substring_t elements. Used to return match
  * locations.
diff --git a/lib/show_mem.c b/lib/show_mem.c
index d8d602b58c31..90cbe4bb5960 100644
--- a/lib/show_mem.c
+++ b/lib/show_mem.c
@@ -9,7 +9,7 @@
 #include <linux/nmi.h>
 #include <linux/quicklist.h>
 
-void __show_mem(unsigned int filter)
+void show_mem(unsigned int filter)
 {
 	pg_data_t *pgdat;
 	unsigned long total = 0, reserved = 0, shared = 0,
@@ -61,8 +61,3 @@ void __show_mem(unsigned int filter)
 		quicklist_total_size());
 #endif
 }
-
-void show_mem(void)
-{
-	__show_mem(0);
-}
diff --git a/lib/timerqueue.c b/lib/timerqueue.c
index e3a1050e6820..191176a43e9a 100644
--- a/lib/timerqueue.c
+++ b/lib/timerqueue.c
@@ -5,7 +5,7 @@
  *  Uses rbtrees for quick list adds and expiration.
  *
  *  NOTE: All of the following functions need to be serialized
- *  to avoid races. No locking is done by this libary code.
+ *  to avoid races. No locking is done by this library code.
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index 02bcdd5feac4..bc0ac6b333dc 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -433,7 +433,9 @@ char *symbol_string(char *buf, char *end, void *ptr,
 	unsigned long value = (unsigned long) ptr;
 #ifdef CONFIG_KALLSYMS
 	char sym[KSYM_SYMBOL_LEN];
-	if (ext != 'f' && ext != 's')
+	if (ext == 'B')
+		sprint_backtrace(sym, value);
+	else if (ext != 'f' && ext != 's')
 		sprint_symbol(sym, value);
 	else
 		kallsyms_lookup(value, NULL, NULL, NULL, sym);
@@ -808,6 +810,7 @@ int kptr_restrict = 1;
  * - 'f' For simple symbolic function names without offset
  * - 'S' For symbolic direct pointers with offset
  * - 's' For symbolic direct pointers without offset
+ * - 'B' For backtraced symbolic direct pointers with offset
  * - 'R' For decoded struct resource, e.g., [mem 0x0-0x1f 64bit pref]
  * - 'r' For raw struct resource, e.g., [mem 0x0-0x1f flags 0x201]
  * - 'M' For a 6-byte MAC address, it prints the address in the
@@ -867,6 +870,7 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr,
 		/* Fallthrough */
 	case 'S':
 	case 's':
+	case 'B':
 		return symbol_string(buf, end, ptr, spec, *fmt);
 	case 'R':
 	case 'r':
@@ -1134,6 +1138,7 @@ qualifier:
  * %ps output the name of a text symbol without offset
  * %pF output the name of a function pointer with its offset
  * %pf output the name of a function pointer without its offset
+ * %pB output the name of a backtrace symbol with its offset
  * %pR output the address range in a struct resource with decoded flags
  * %pr output the address range in a struct resource with raw flags
  * %pM output a 6-byte MAC address with colons
diff --git a/mm/backing-dev.c b/mm/backing-dev.c
index 8fe9d3407921..befc87531e4f 100644
--- a/mm/backing-dev.c
+++ b/mm/backing-dev.c
@@ -67,14 +67,14 @@ static int bdi_debug_stats_show(struct seq_file *m, void *v)
 	struct inode *inode;
 
 	nr_wb = nr_dirty = nr_io = nr_more_io = 0;
-	spin_lock(&inode_lock);
+	spin_lock(&inode_wb_list_lock);
 	list_for_each_entry(inode, &wb->b_dirty, i_wb_list)
 		nr_dirty++;
 	list_for_each_entry(inode, &wb->b_io, i_wb_list)
 		nr_io++;
 	list_for_each_entry(inode, &wb->b_more_io, i_wb_list)
 		nr_more_io++;
-	spin_unlock(&inode_lock);
+	spin_unlock(&inode_wb_list_lock);
 
 	global_dirty_limits(&background_thresh, &dirty_thresh);
 	bdi_thresh = bdi_dirty_limit(bdi, dirty_thresh);
@@ -676,11 +676,11 @@ void bdi_destroy(struct backing_dev_info *bdi)
 	if (bdi_has_dirty_io(bdi)) {
 		struct bdi_writeback *dst = &default_backing_dev_info.wb;
 
-		spin_lock(&inode_lock);
+		spin_lock(&inode_wb_list_lock);
 		list_splice(&bdi->wb.b_dirty, &dst->b_dirty);
 		list_splice(&bdi->wb.b_io, &dst->b_io);
 		list_splice(&bdi->wb.b_more_io, &dst->b_more_io);
-		spin_unlock(&inode_lock);
+		spin_unlock(&inode_wb_list_lock);
 	}
 
 	bdi_unregister(bdi);
@@ -787,7 +787,7 @@ EXPORT_SYMBOL(congestion_wait);
  * jiffies for either a BDI to exit congestion of the given @sync queue
  * or a write to complete.
  *
- * In the absense of zone congestion, cond_resched() is called to yield
+ * In the absence of zone congestion, cond_resched() is called to yield
  * the processor if necessary but otherwise does not sleep.
  *
  * The return value is 0 if the sleep is for the full timeout. Otherwise,
diff --git a/mm/filemap.c b/mm/filemap.c
index 04d1992fd86b..c641edf553a9 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -80,8 +80,8 @@
  *  ->i_mutex
  *    ->i_alloc_sem             (various)
  *
- *  ->inode_lock
- *    ->sb_lock			(fs/fs-writeback.c)
+ *  inode_wb_list_lock
+ *    sb_lock			(fs/fs-writeback.c)
  *    ->mapping->tree_lock	(__sync_single_inode)
  *
  *  ->i_mmap_lock
@@ -98,8 +98,10 @@
  *    ->zone.lru_lock		(check_pte_range->isolate_lru_page)
  *    ->private_lock		(page_remove_rmap->set_page_dirty)
  *    ->tree_lock		(page_remove_rmap->set_page_dirty)
- *    ->inode_lock		(page_remove_rmap->set_page_dirty)
- *    ->inode_lock		(zap_pte_range->set_page_dirty)
+ *    inode_wb_list_lock	(page_remove_rmap->set_page_dirty)
+ *    ->inode->i_lock		(page_remove_rmap->set_page_dirty)
+ *    inode_wb_list_lock	(zap_pte_range->set_page_dirty)
+ *    ->inode->i_lock		(zap_pte_range->set_page_dirty)
  *    ->private_lock		(zap_pte_range->__set_page_dirty_buffers)
  *
  *  (code doesn't rely on that order, so you could switch it around)
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 06de5aa4d644..8ee3bd8ec5b5 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -146,7 +146,7 @@ static long region_chg(struct list_head *head, long f, long t)
 		if (rg->from > t)
 			return chg;
 
-		/* We overlap with this area, if it extends futher than
+		/* We overlap with this area, if it extends further than
 		 * us then we must extend ourselves.  Account for its
 		 * existing reservation. */
 		if (rg->to > t) {
@@ -842,7 +842,7 @@ struct page *alloc_huge_page_node(struct hstate *h, int nid)
 }
 
 /*
- * Increase the hugetlb pool such that it can accomodate a reservation
+ * Increase the hugetlb pool such that it can accommodate a reservation
  * of size 'delta'.
  */
 static int gather_surplus_pages(struct hstate *h, int delta)
@@ -890,7 +890,7 @@ retry:
 
 	/*
 	 * The surplus_list now contains _at_least_ the number of extra pages
-	 * needed to accomodate the reservation.  Add the appropriate number
+	 * needed to accommodate the reservation.  Add the appropriate number
 	 * of pages to the hugetlb pool and free the extras back to the buddy
 	 * allocator.  Commit the entire reservation here to prevent another
 	 * process from stealing the pages as they are added to the pool but
@@ -2043,7 +2043,7 @@ static void hugetlb_vm_op_open(struct vm_area_struct *vma)
 	 * This new VMA should share its siblings reservation map if present.
 	 * The VMA will only ever have a valid reservation map pointer where
 	 * it is being copied for another still existing VMA.  As that VMA
-	 * has a reference to the reservation map it cannot dissappear until
+	 * has a reference to the reservation map it cannot disappear until
 	 * after this open call completes.  It is therefore safe to take a
 	 * new reference here without additional locking.
 	 */
@@ -2490,7 +2490,7 @@ static int hugetlb_no_page(struct mm_struct *mm, struct vm_area_struct *vma,
 	/*
 	 * Currently, we are forced to kill the process in the event the
 	 * original mapper has unmapped pages from the child due to a failed
-	 * COW. Warn that such a situation has occured as it may not be obvious
+	 * COW. Warn that such a situation has occurred as it may not be obvious
 	 */
 	if (is_vma_resv_set(vma, HPAGE_RESV_UNMAPPED)) {
 		printk(KERN_WARNING
diff --git a/mm/hwpoison-inject.c b/mm/hwpoison-inject.c
index 0948f1072d6b..c7fc7fd00e32 100644
--- a/mm/hwpoison-inject.c
+++ b/mm/hwpoison-inject.c
@@ -1,4 +1,4 @@
-/* Inject a hwpoison memory failure on a arbitary pfn */
+/* Inject a hwpoison memory failure on a arbitrary pfn */
 #include <linux/module.h>
 #include <linux/debugfs.h>
 #include <linux/kernel.h>
diff --git a/mm/internal.h b/mm/internal.h
index 3438dd43a062..9d0ced8e505e 100644
--- a/mm/internal.h
+++ b/mm/internal.h
@@ -162,7 +162,7 @@ static inline struct page *mem_map_offset(struct page *base, int offset)
 }
 
 /*
- * Iterator over all subpages withing the maximally aligned gigantic
+ * Iterator over all subpages within the maximally aligned gigantic
  * page 'base'.  Handle any discontiguity in the mem_map.
  */
 static inline struct page *mem_map_next(struct page *iter,
diff --git a/mm/kmemleak.c b/mm/kmemleak.c
index 84225f3b7190..c1d5867543e4 100644
--- a/mm/kmemleak.c
+++ b/mm/kmemleak.c
@@ -265,7 +265,7 @@ static void kmemleak_disable(void);
 } while (0)
 
 /*
- * Macro invoked when a serious kmemleak condition occured and cannot be
+ * Macro invoked when a serious kmemleak condition occurred and cannot be
  * recovered from. Kmemleak will be disabled and further allocation/freeing
  * tracing no longer available.
  */
@@ -1006,7 +1006,7 @@ static bool update_checksum(struct kmemleak_object *object)
 
 /*
  * Memory scanning is a long process and it needs to be interruptable. This
- * function checks whether such interrupt condition occured.
+ * function checks whether such interrupt condition occurred.
  */
 static int scan_should_stop(void)
 {
@@ -1733,7 +1733,7 @@ static int __init kmemleak_late_init(void)
 
 	if (atomic_read(&kmemleak_error)) {
 		/*
-		 * Some error occured and kmemleak was disabled. There is a
+		 * Some error occurred and kmemleak was disabled. There is a
 		 * small chance that kmemleak_disable() was called immediately
 		 * after setting kmemleak_initialized and we may end up with
 		 * two clean-up threads but serialized by scan_mutex.
diff --git a/mm/ksm.c b/mm/ksm.c
index 1bbe785aa559..942dfc73a2ff 100644
--- a/mm/ksm.c
+++ b/mm/ksm.c
@@ -720,7 +720,7 @@ static int write_protect_page(struct vm_area_struct *vma, struct page *page,
 		swapped = PageSwapCache(page);
 		flush_cache_page(vma, addr, page_to_pfn(page));
 		/*
-		 * Ok this is tricky, when get_user_pages_fast() run it doesnt
+		 * Ok this is tricky, when get_user_pages_fast() run it doesn't
 		 * take any lock, therefore the check that we are going to make
 		 * with the pagecount against the mapcount is racey and
 		 * O_DIRECT can happen right after the check.
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 1f0b460fe58c..010f9166fa6e 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -1466,7 +1466,7 @@ static int mem_cgroup_hierarchical_reclaim(struct mem_cgroup *root_mem,
 					break;
 				}
 				/*
-				 * We want to do more targetted reclaim.
+				 * We want to do more targeted reclaim.
 				 * excess >> 2 is not to excessive so as to
 				 * reclaim too much, nor too less that we keep
 				 * coming back to reclaim from this cgroup
@@ -2265,7 +2265,7 @@ void mem_cgroup_split_huge_fixup(struct page *head, struct page *tail)
  * - compound_lock is held when nr_pages > 1
  *
  * This function doesn't do "charge" nor css_get to new cgroup. It should be
- * done by a caller(__mem_cgroup_try_charge would be usefull). If @uncharge is
+ * done by a caller(__mem_cgroup_try_charge would be useful). If @uncharge is
  * true, this function does "uncharge" from old cgroup, but it doesn't if
  * @uncharge is false, so a caller should do "uncharge".
  */
@@ -2318,7 +2318,7 @@ static int mem_cgroup_move_account(struct page *page,
 	 * We charges against "to" which may not have any tasks. Then, "to"
 	 * can be under rmdir(). But in current implementation, caller of
 	 * this function is just force_empty() and move charge, so it's
-	 * garanteed that "to" is never removed. So, we don't check rmdir
+	 * guaranteed that "to" is never removed. So, we don't check rmdir
 	 * status here.
 	 */
 	move_unlock_page_cgroup(pc, &flags);
@@ -2648,7 +2648,7 @@ static void mem_cgroup_do_uncharge(struct mem_cgroup *mem,
 		batch->memcg = mem;
 	/*
 	 * do_batch > 0 when unmapping pages or inode invalidate/truncate.
-	 * In those cases, all pages freed continously can be expected to be in
+	 * In those cases, all pages freed continuously can be expected to be in
 	 * the same cgroup and we have chance to coalesce uncharges.
 	 * But we do uncharge one by one if this is killed by OOM(TIF_MEMDIE)
 	 * because we want to do uncharge as soon as possible.
diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index 37feb9fec228..2b9a5eef39e0 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -208,7 +208,7 @@ static int kill_proc_ao(struct task_struct *t, unsigned long addr, int trapno,
 	 * Don't use force here, it's convenient if the signal
 	 * can be temporarily blocked.
 	 * This could cause a loop when the user sets SIGBUS
-	 * to SIG_IGN, but hopefully noone will do that?
+	 * to SIG_IGN, but hopefully no one will do that?
 	 */
 	ret = send_sig_info(SIGBUS, &si, t);  /* synchronous? */
 	if (ret < 0)
@@ -634,7 +634,7 @@ static int me_pagecache_dirty(struct page *p, unsigned long pfn)
 		 * when the page is reread or dropped.  If an
 		 * application assumes it will always get error on
 		 * fsync, but does other operations on the fd before
-		 * and the page is dropped inbetween then the error
+		 * and the page is dropped between then the error
 		 * will not be properly reported.
 		 *
 		 * This can already happen even without hwpoisoned
@@ -728,7 +728,7 @@ static int me_huge_page(struct page *p, unsigned long pfn)
  * The table matches them in order and calls the right handler.
  *
  * This is quite tricky because we can access page at any time
- * in its live cycle, so all accesses have to be extremly careful.
+ * in its live cycle, so all accesses have to be extremely careful.
  *
  * This is not complete. More states could be added.
  * For any missing state don't attempt recovery.
diff --git a/mm/memory.c b/mm/memory.c
index 51a5c23704af..9da8cab1b1b0 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -3715,7 +3715,7 @@ static int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
 }
 
 /**
- * @access_remote_vm - access another process' address space
+ * access_remote_vm - access another process' address space
  * @mm:		the mm_struct of the target address space
  * @addr:	start address to access
  * @buf:	source or destination buffer
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index 321fc7455df7..a2acaf820fe5 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -724,7 +724,7 @@ do_migrate_range(unsigned long start_pfn, unsigned long end_pfn)
 			       pfn);
 			dump_page(page);
 #endif
-			/* Becasue we don't have big zone->lock. we should
+			/* Because we don't have big zone->lock. we should
 			   check this again here. */
 			if (page_count(page)) {
 				not_managed++;
diff --git a/mm/migrate.c b/mm/migrate.c
index b0406d739ea7..34132f8e9109 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -375,7 +375,7 @@ void migrate_page_copy(struct page *newpage, struct page *page)
 		 * redo the accounting that clear_page_dirty_for_io undid,
 		 * but we can't use set_page_dirty because that function
 		 * is actually a signal that all of the page has become dirty.
-		 * Wheras only part of our page may be dirty.
+		 * Whereas only part of our page may be dirty.
 		 */
 		__set_page_dirty_nobuffers(newpage);
  	}
diff --git a/mm/mremap.c b/mm/mremap.c
index 1de98d492ddc..a7c1f9f9b941 100644
--- a/mm/mremap.c
+++ b/mm/mremap.c
@@ -277,9 +277,16 @@ static struct vm_area_struct *vma_to_resize(unsigned long addr,
 	if (old_len > vma->vm_end - addr)
 		goto Efault;
 
-	if (vma->vm_flags & (VM_DONTEXPAND | VM_PFNMAP)) {
-		if (new_len > old_len)
+	/* Need to be careful about a growing mapping */
+	if (new_len > old_len) {
+		unsigned long pgoff;
+
+		if (vma->vm_flags & (VM_DONTEXPAND | VM_PFNMAP))
 			goto Efault;
+		pgoff = (addr - vma->vm_start) >> PAGE_SHIFT;
+		pgoff += vma->vm_pgoff;
+		if (pgoff + (new_len >> PAGE_SHIFT) < pgoff)
+			goto Einval;
 	}
 
 	if (vma->vm_flags & VM_LOCKED) {
diff --git a/mm/nobootmem.c b/mm/nobootmem.c
index e99f6cd1da1f..9109049f0bbc 100644
--- a/mm/nobootmem.c
+++ b/mm/nobootmem.c
@@ -150,7 +150,7 @@ unsigned long __init free_all_bootmem(void)
 {
 	/*
 	 * We need to use MAX_NUMNODES instead of NODE_DATA(0)->node_id
-	 *  because in some case like Node0 doesnt have RAM installed
+	 *  because in some case like Node0 doesn't have RAM installed
 	 *  low ram will be on Node1
 	 * Use MAX_NUMNODES will make sure all ranges in early_node_map[]
 	 *  will be used instead of only Node0 related
diff --git a/mm/nommu.c b/mm/nommu.c
index cb86e7d5e7f5..c4c542c736a9 100644
--- a/mm/nommu.c
+++ b/mm/nommu.c
@@ -1971,21 +1971,10 @@ int filemap_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
 }
 EXPORT_SYMBOL(filemap_fault);
 
-/*
- * Access another process' address space.
- * - source/target buffer must be kernel space
- */
-int access_process_vm(struct task_struct *tsk, unsigned long addr, void *buf, int len, int write)
+static int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
+		unsigned long addr, void *buf, int len, int write)
 {
 	struct vm_area_struct *vma;
-	struct mm_struct *mm;
-
-	if (addr + len < addr)
-		return 0;
-
-	mm = get_task_mm(tsk);
-	if (!mm)
-		return 0;
 
 	down_read(&mm->mmap_sem);
 
@@ -2010,6 +1999,43 @@ int access_process_vm(struct task_struct *tsk, unsigned long addr, void *buf, in
 	}
 
 	up_read(&mm->mmap_sem);
+
+	return len;
+}
+
+/**
+ * @access_remote_vm - access another process' address space
+ * @mm:		the mm_struct of the target address space
+ * @addr:	start address to access
+ * @buf:	source or destination buffer
+ * @len:	number of bytes to transfer
+ * @write:	whether the access is a write
+ *
+ * The caller must hold a reference on @mm.
+ */
+int access_remote_vm(struct mm_struct *mm, unsigned long addr,
+		void *buf, int len, int write)
+{
+	return __access_remote_vm(NULL, mm, addr, buf, len, write);
+}
+
+/*
+ * Access another process' address space.
+ * - source/target buffer must be kernel space
+ */
+int access_process_vm(struct task_struct *tsk, unsigned long addr, void *buf, int len, int write)
+{
+	struct mm_struct *mm;
+
+	if (addr + len < addr)
+		return 0;
+
+	mm = get_task_mm(tsk);
+	if (!mm)
+		return 0;
+
+	len = __access_remote_vm(tsk, mm, addr, buf, len, write);
+
 	mmput(mm);
 	return len;
 }
diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index 62a5cec08a17..6a819d1b2c7d 100644
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -406,7 +406,7 @@ static void dump_header(struct task_struct *p, gfp_t gfp_mask, int order,
 	task_unlock(current);
 	dump_stack();
 	mem_cgroup_print_oom_info(mem, p);
-	__show_mem(SHOW_MEM_FILTER_NODES);
+	show_mem(SHOW_MEM_FILTER_NODES);
 	if (sysctl_oom_dump_tasks)
 		dump_tasks(mem, nodemask);
 }
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 8e5726ab0d85..2747f5e5abc1 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -942,7 +942,7 @@ __rmqueue_fallback(struct zone *zone, int order, int start_migratetype)
 			 * If breaking a large block of pages, move all free
 			 * pages to the preferred allocation list. If falling
 			 * back for a reclaimable kernel allocation, be more
-			 * agressive about taking ownership of free pages
+			 * aggressive about taking ownership of free pages
 			 */
 			if (unlikely(current_order >= (pageblock_order >> 1)) ||
 					start_migratetype == MIGRATE_RECLAIMABLE ||
@@ -2195,7 +2195,7 @@ nopage:
 			current->comm, order, gfp_mask);
 		dump_stack();
 		if (!should_suppress_show_mem())
-			__show_mem(filter);
+			show_mem(filter);
 	}
 	return page;
 got_pg:
@@ -3926,7 +3926,7 @@ static void __init find_usable_zone_for_movable(void)
 
 /*
  * The zone ranges provided by the architecture do not include ZONE_MOVABLE
- * because it is sized independant of architecture. Unlike the other zones,
+ * because it is sized independent of architecture. Unlike the other zones,
  * the starting point for ZONE_MOVABLE is not fixed. It may be different
  * in each node depending on the size of each node and how evenly kernelcore
  * is distributed. This helper function adjusts the zone ranges
diff --git a/mm/page_cgroup.c b/mm/page_cgroup.c
index a12cc3fa9859..99055010cece 100644
--- a/mm/page_cgroup.c
+++ b/mm/page_cgroup.c
@@ -377,7 +377,7 @@ not_enough_page:
  * @new: new id
  *
  * Returns old id at success, 0 at failure.
- * (There is no mem_cgroup useing 0 as its id)
+ * (There is no mem_cgroup using 0 as its id)
  */
 unsigned short swap_cgroup_cmpxchg(swp_entry_t ent,
 					unsigned short old, unsigned short new)
diff --git a/mm/percpu.c b/mm/percpu.c
index 3f930018aa60..a160db39b810 100644
--- a/mm/percpu.c
+++ b/mm/percpu.c
@@ -342,7 +342,7 @@ static void pcpu_chunk_relocate(struct pcpu_chunk *chunk, int oslot)
  * @chunk: chunk of interest
  *
  * Determine whether area map of @chunk needs to be extended to
- * accomodate a new allocation.
+ * accommodate a new allocation.
  *
  * CONTEXT:
  * pcpu_lock.
@@ -431,7 +431,7 @@ out_unlock:
  * depending on @head, is reduced by @tail bytes and @tail byte block
  * is inserted after the target block.
  *
- * @chunk->map must have enough free slots to accomodate the split.
+ * @chunk->map must have enough free slots to accommodate the split.
  *
  * CONTEXT:
  * pcpu_lock.
@@ -1008,8 +1008,7 @@ phys_addr_t per_cpu_ptr_to_phys(void *addr)
 	}
 
 	if (in_first_chunk) {
-		if ((unsigned long)addr < VMALLOC_START ||
-		    (unsigned long)addr >= VMALLOC_END)
+		if (!is_vmalloc_addr(addr))
 			return __pa(addr);
 		else
 			return page_to_phys(vmalloc_to_page(addr));
@@ -1436,7 +1435,7 @@ static struct pcpu_alloc_info * __init pcpu_build_alloc_info(
 	/*
 	 * Determine min_unit_size, alloc_size and max_upa such that
 	 * alloc_size is multiple of atom_size and is the smallest
-	 * which can accomodate 4k aligned segments which are equal to
+	 * which can accommodate 4k aligned segments which are equal to
 	 * or larger than min_unit_size.
 	 */
 	min_unit_size = max_t(size_t, size_sum, PCPU_MIN_UNIT_SIZE);
@@ -1551,7 +1550,7 @@ static struct pcpu_alloc_info * __init pcpu_build_alloc_info(
  * @atom_size: allocation atom size
  * @cpu_distance_fn: callback to determine distance between cpus, optional
  * @alloc_fn: function to allocate percpu page
- * @free_fn: funtion to free percpu page
+ * @free_fn: function to free percpu page
  *
  * This is a helper to ease setting up embedded first percpu chunk and
  * can be called where pcpu_setup_first_chunk() is expected.
@@ -1679,7 +1678,7 @@ out_free:
  * pcpu_page_first_chunk - map the first chunk using PAGE_SIZE pages
  * @reserved_size: the size of reserved percpu area in bytes
  * @alloc_fn: function to allocate percpu page, always called with PAGE_SIZE
- * @free_fn: funtion to free percpu page, always called with PAGE_SIZE
+ * @free_fn: function to free percpu page, always called with PAGE_SIZE
  * @populate_pte_fn: function to populate pte
  *
  * This is a helper to ease setting up page-remapped first percpu
diff --git a/mm/rmap.c b/mm/rmap.c
index 4a8e99a0fb97..8da044a1db0f 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -31,11 +31,12 @@
  *             swap_lock (in swap_duplicate, swap_info_get)
  *               mmlist_lock (in mmput, drain_mmlist and others)
  *               mapping->private_lock (in __set_page_dirty_buffers)
- *               inode_lock (in set_page_dirty's __mark_inode_dirty)
+ *               inode->i_lock (in set_page_dirty's __mark_inode_dirty)
+ *               inode_wb_list_lock (in set_page_dirty's __mark_inode_dirty)
  *                 sb_lock (within inode_lock in fs/fs-writeback.c)
  *                 mapping->tree_lock (widely used, in set_page_dirty,
  *                           in arch-dependent flush_dcache_mmap_lock,
- *                           within inode_lock in __sync_single_inode)
+ *                           within inode_wb_list_lock in __sync_single_inode)
  *
  * (code doesn't rely on that order so it could be switched around)
  * ->tasklist_lock
diff --git a/mm/slab.c b/mm/slab.c
index 568803f121a8..46a9c163a92f 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -878,7 +878,7 @@ static struct array_cache *alloc_arraycache(int node, int entries,
 	nc = kmalloc_node(memsize, gfp, node);
 	/*
 	 * The array_cache structures contain pointers to free object.
-	 * However, when such objects are allocated or transfered to another
+	 * However, when such objects are allocated or transferred to another
 	 * cache the pointers are not cleared and they could be counted as
 	 * valid references during a kmemleak scan. Therefore, kmemleak must
 	 * not scan such objects.
@@ -2606,7 +2606,7 @@ EXPORT_SYMBOL(kmem_cache_shrink);
  *
  * The cache must be empty before calling this function.
  *
- * The caller must guarantee that noone will allocate memory from the cache
+ * The caller must guarantee that no one will allocate memory from the cache
  * during the kmem_cache_destroy().
  */
 void kmem_cache_destroy(struct kmem_cache *cachep)
diff --git a/mm/slub.c b/mm/slub.c
index 93de30db95f5..94d2a33a866e 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -64,7 +64,7 @@
  *   we must stay away from it for a while since we may cause a bouncing
  *   cacheline if we try to acquire the lock. So go onto the next slab.
  *   If all pages are busy then we may allocate a new slab instead of reusing
- *   a partial slab. A new slab has noone operating on it and thus there is
+ *   a partial slab. A new slab has no one operating on it and thus there is
  *   no danger of cacheline contention.
  *
  *   Interrupts are disabled during allocation and deallocation in order to
@@ -849,11 +849,11 @@ static inline void slab_free_hook(struct kmem_cache *s, void *x)
 		local_irq_save(flags);
 		kmemcheck_slab_free(s, x, s->objsize);
 		debug_check_no_locks_freed(x, s->objsize);
-		if (!(s->flags & SLAB_DEBUG_OBJECTS))
-			debug_check_no_obj_freed(x, s->objsize);
 		local_irq_restore(flags);
 	}
 #endif
+	if (!(s->flags & SLAB_DEBUG_OBJECTS))
+		debug_check_no_obj_freed(x, s->objsize);
 }
 
 /*
@@ -1604,7 +1604,7 @@ static inline void note_cmpxchg_failure(const char *n,
 
 void init_kmem_cache_cpus(struct kmem_cache *s)
 {
-#if defined(CONFIG_CMPXCHG_LOCAL) && defined(CONFIG_PREEMPT)
+#ifdef CONFIG_CMPXCHG_LOCAL
 	int cpu;
 
 	for_each_possible_cpu(cpu)
@@ -1929,7 +1929,7 @@ redo:
 	else {
 #ifdef CONFIG_CMPXCHG_LOCAL
 		/*
-		 * The cmpxchg will only match if there was no additonal
+		 * The cmpxchg will only match if there was no additional
 		 * operation and if we are on the right processor.
 		 *
 		 * The cmpxchg does the following atomically (without lock semantics!)
@@ -3547,7 +3547,7 @@ void *__kmalloc_track_caller(size_t size, gfp_t gfpflags, unsigned long caller)
 
 	ret = slab_alloc(s, gfpflags, NUMA_NO_NODE, caller);
 
-	/* Honor the call site pointer we recieved. */
+	/* Honor the call site pointer we received. */
 	trace_kmalloc(caller, ret, size, s->size, gfpflags);
 
 	return ret;
@@ -3577,7 +3577,7 @@ void *__kmalloc_node_track_caller(size_t size, gfp_t gfpflags,
 
 	ret = slab_alloc(s, gfpflags, node, caller);
 
-	/* Honor the call site pointer we recieved. */
+	/* Honor the call site pointer we received. */
 	trace_kmalloc_node(caller, ret, size, s->size, gfpflags, node);
 
 	return ret;
diff --git a/mm/sparse.c b/mm/sparse.c
index 93250207c5cf..aa64b12831a2 100644
--- a/mm/sparse.c
+++ b/mm/sparse.c
@@ -500,7 +500,7 @@ void __init sparse_init(void)
 	 * so alloc 2M (with 2M align) and 24 bytes in turn will
 	 * make next 2M slip to one more 2M later.
 	 * then in big system, the memory will have a lot of holes...
-	 * here try to allocate 2M pages continously.
+	 * here try to allocate 2M pages continuously.
 	 *
 	 * powerpc need to call sparse_init_one_section right after each
 	 * sparse_early_mem_map_alloc, so allocate usemap_map at first.
diff --git a/mm/util.c b/mm/util.c
index f126975ef23e..e7b103a6fd21 100644
--- a/mm/util.c
+++ b/mm/util.c
@@ -227,7 +227,7 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
 /*
  * Like get_user_pages_fast() except its IRQ-safe in that it won't fall
  * back to the regular GUP.
- * If the architecture not support this fucntion, simply return with no
+ * If the architecture not support this function, simply return with no
  * page pinned
  */
 int __attribute__((weak)) __get_user_pages_fast(unsigned long start,
diff --git a/mm/vmscan.c b/mm/vmscan.c
index f73b8657c2d0..c7f5a6d4b75b 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -1065,7 +1065,7 @@ static unsigned long isolate_lru_pages(unsigned long nr_to_scan,
 		 * surrounding the tag page.  Only take those pages of
 		 * the same active state as that tag page.  We may safely
 		 * round the target page pfn down to the requested order
-		 * as the mem_map is guarenteed valid out to MAX_ORDER,
+		 * as the mem_map is guaranteed valid out to MAX_ORDER,
 		 * where that page is in a different zone we will detect
 		 * it from its zone id and abort this block scan.
 		 */
@@ -2224,7 +2224,7 @@ unsigned long try_to_free_mem_cgroup_pages(struct mem_cgroup *mem_cont,
  *   o a 16M DMA zone that is balanced will not balance a zone on any
  *     reasonable sized machine
  *   o On all other machines, the top zone must be at least a reasonable
- *     precentage of the middle zones. For example, on 32-bit x86, highmem
+ *     percentage of the middle zones. For example, on 32-bit x86, highmem
  *     would need to be at least 256M for it to be balance a whole node.
  *     Similarly, on x86-64 the Normal zone would need to be at least 1G
  *     to balance a node on its own. These seemed like reasonable ratios.
diff --git a/net/8021q/vlanproc.c b/net/8021q/vlanproc.c
index d1314cf18adf..d940c49d168a 100644
--- a/net/8021q/vlanproc.c
+++ b/net/8021q/vlanproc.c
@@ -54,7 +54,7 @@ static const char name_conf[]	 = "config";
 
 /*
  *	Structures for interfacing with the /proc filesystem.
- *	VLAN creates its own directory /proc/net/vlan with the folowing
+ *	VLAN creates its own directory /proc/net/vlan with the following
  *	entries:
  *	config		device status/configuration
  *	<device>	entry for each  device
diff --git a/net/9p/client.c b/net/9p/client.c
index 2ccbf04d37df..48b8e084e710 100644
--- a/net/9p/client.c
+++ b/net/9p/client.c
@@ -178,7 +178,7 @@ free_and_return:
  * @tag: numeric id for transaction
  *
  * this is a simple array lookup, but will grow the
- * request_slots as necessary to accomodate transaction
+ * request_slots as necessary to accommodate transaction
  * ids which did not previously have a slot.
  *
  * this code relies on the client spinlock to manage locks, its
diff --git a/net/9p/trans_common.c b/net/9p/trans_common.c
index 9172ab78fcb0..d47880e971dd 100644
--- a/net/9p/trans_common.c
+++ b/net/9p/trans_common.c
@@ -36,7 +36,7 @@ p9_release_req_pages(struct trans_rpage_info *rpinfo)
 EXPORT_SYMBOL(p9_release_req_pages);
 
 /**
- * p9_nr_pages - Return number of pages needed to accomodate the payload.
+ * p9_nr_pages - Return number of pages needed to accommodate the payload.
  */
 int
 p9_nr_pages(struct p9_req_t *req)
@@ -55,7 +55,7 @@ EXPORT_SYMBOL(p9_nr_pages);
  * @req: Request to be sent to server.
  * @pdata_off: data offset into the first page after translation (gup).
  * @pdata_len: Total length of the IO. gup may not return requested # of pages.
- * @nr_pages: number of pages to accomodate the payload
+ * @nr_pages: number of pages to accommodate the payload
  * @rw: Indicates if the pages are for read or write.
  */
 int
diff --git a/net/9p/util.c b/net/9p/util.c
index b84619b5ba22..da6af81e59d9 100644
--- a/net/9p/util.c
+++ b/net/9p/util.c
@@ -67,7 +67,7 @@ EXPORT_SYMBOL(p9_idpool_create);
 
 /**
  * p9_idpool_destroy - create a new per-connection id pool
- * @p: idpool to destory
+ * @p: idpool to destroy
  */
 
 void p9_idpool_destroy(struct p9_idpool *p)
diff --git a/net/appletalk/ddp.c b/net/appletalk/ddp.c
index 206e771e82d1..956a5302002a 100644
--- a/net/appletalk/ddp.c
+++ b/net/appletalk/ddp.c
@@ -1051,16 +1051,17 @@ static int atalk_release(struct socket *sock)
 {
 	struct sock *sk = sock->sk;
 
-	sock_hold(sk);
-	lock_sock(sk);
 	if (sk) {
+		sock_hold(sk);
+		lock_sock(sk);
+
 		sock_orphan(sk);
 		sock->sk = NULL;
 		atalk_destroy_socket(sk);
-	}
-	release_sock(sk);
-	sock_put(sk);
 
+		release_sock(sk);
+		sock_put(sk);
+	}
 	return 0;
 }
 
diff --git a/net/atm/br2684.c b/net/atm/br2684.c
index fce2eae8d476..2252c2085dac 100644
--- a/net/atm/br2684.c
+++ b/net/atm/br2684.c
@@ -509,7 +509,7 @@ static int br2684_regvcc(struct atm_vcc *atmvcc, void __user * arg)
 	write_lock_irq(&devs_lock);
 	net_dev = br2684_find_dev(&be.ifspec);
 	if (net_dev == NULL) {
-		pr_err("tried to attach to non-existant device\n");
+		pr_err("tried to attach to non-existent device\n");
 		err = -ENXIO;
 		goto error;
 	}
diff --git a/net/atm/common.c b/net/atm/common.c
index 1b9c52a02cd3..22b963d06a10 100644
--- a/net/atm/common.c
+++ b/net/atm/common.c
@@ -252,6 +252,7 @@ void atm_dev_release_vccs(struct atm_dev *dev)
 	}
 	write_unlock_irq(&vcc_sklist_lock);
 }
+EXPORT_SYMBOL(atm_dev_release_vccs);
 
 static int adjust_tp(struct atm_trafprm *tp, unsigned char aal)
 {
diff --git a/net/atm/lec.h b/net/atm/lec.h
index 9d14d196cc1d..dfc071966463 100644
--- a/net/atm/lec.h
+++ b/net/atm/lec.h
@@ -35,7 +35,7 @@ struct lecdatahdr_8025 {
  * Operations that LANE2 capable device can do. Two first functions
  * are used to make the device do things. See spec 3.1.3 and 3.1.4.
  *
- * The third function is intented for the MPOA component sitting on
+ * The third function is intended for the MPOA component sitting on
  * top of the LANE device. The MPOA component assigns it's own function
  * to (*associate_indicator)() and the LANE device will use that
  * function to tell about TLVs it sees floating through.
diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c
index 9ed26140a269..824e1f6e50f2 100644
--- a/net/batman-adv/soft-interface.c
+++ b/net/batman-adv/soft-interface.c
@@ -474,7 +474,7 @@ void interface_rx(struct net_device *soft_iface,
 		goto dropped;
 	skb->protocol = eth_type_trans(skb, soft_iface);
 
-	/* should not be neccesary anymore as we use skb_pull_rcsum()
+	/* should not be necessary anymore as we use skb_pull_rcsum()
 	 * TODO: please verify this and remove this TODO
 	 * -- Dec 21st 2009, Simon Wunderlich */
 
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index b372fb8bcdcf..c83f618282f7 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -186,6 +186,7 @@ static void hci_reset_req(struct hci_dev *hdev, unsigned long opt)
 	BT_DBG("%s %ld", hdev->name, opt);
 
 	/* Reset device */
+	set_bit(HCI_RESET, &hdev->flags);
 	hci_send_cmd(hdev, HCI_OP_RESET, 0, NULL);
 }
 
@@ -213,8 +214,10 @@ static void hci_init_req(struct hci_dev *hdev, unsigned long opt)
 	/* Mandatory initialization */
 
 	/* Reset */
-	if (!test_bit(HCI_QUIRK_NO_RESET, &hdev->quirks))
+	if (!test_bit(HCI_QUIRK_NO_RESET, &hdev->quirks)) {
+			set_bit(HCI_RESET, &hdev->flags);
 			hci_send_cmd(hdev, HCI_OP_RESET, 0, NULL);
+	}
 
 	/* Read Local Supported Features */
 	hci_send_cmd(hdev, HCI_OP_READ_LOCAL_FEATURES, 0, NULL);
@@ -584,6 +587,9 @@ static int hci_dev_do_close(struct hci_dev *hdev)
 	hci_req_cancel(hdev, ENODEV);
 	hci_req_lock(hdev);
 
+	/* Stop timer, it might be running */
+	del_timer_sync(&hdev->cmd_timer);
+
 	if (!test_and_clear_bit(HCI_UP, &hdev->flags)) {
 		hci_req_unlock(hdev);
 		return 0;
@@ -623,7 +629,6 @@ static int hci_dev_do_close(struct hci_dev *hdev)
 
 	/* Drop last sent command */
 	if (hdev->sent_cmd) {
-		del_timer_sync(&hdev->cmd_timer);
 		kfree_skb(hdev->sent_cmd);
 		hdev->sent_cmd = NULL;
 	}
@@ -1074,6 +1079,7 @@ static void hci_cmd_timer(unsigned long arg)
 
 	BT_ERR("%s command tx timeout", hdev->name);
 	atomic_set(&hdev->cmd_cnt, 1);
+	clear_bit(HCI_RESET, &hdev->flags);
 	tasklet_schedule(&hdev->cmd_task);
 }
 
@@ -1877,7 +1883,7 @@ static void hci_tx_task(unsigned long arg)
 	read_unlock(&hci_task_lock);
 }
 
-/* ----- HCI RX task (incoming data proccessing) ----- */
+/* ----- HCI RX task (incoming data processing) ----- */
 
 /* ACL data packet */
 static inline void hci_acldata_packet(struct hci_dev *hdev, struct sk_buff *skb)
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 3fbfa50c2bff..cebe7588469f 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -183,6 +183,8 @@ static void hci_cc_reset(struct hci_dev *hdev, struct sk_buff *skb)
 
 	BT_DBG("%s status 0x%x", hdev->name, status);
 
+	clear_bit(HCI_RESET, &hdev->flags);
+
 	hci_req_complete(hdev, HCI_OP_RESET, status);
 }
 
@@ -1847,7 +1849,7 @@ static inline void hci_cmd_status_evt(struct hci_dev *hdev, struct sk_buff *skb)
 	if (ev->opcode != HCI_OP_NOP)
 		del_timer(&hdev->cmd_timer);
 
-	if (ev->ncmd) {
+	if (ev->ncmd && !test_bit(HCI_RESET, &hdev->flags)) {
 		atomic_set(&hdev->cmd_cnt, 1);
 		if (!skb_queue_empty(&hdev->cmd_q))
 			tasklet_schedule(&hdev->cmd_task);
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index c9f9cecca527..ca27f3a41536 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -1116,7 +1116,9 @@ int l2cap_ertm_send(struct sock *sk)
 		bt_cb(skb)->tx_seq = pi->next_tx_seq;
 		pi->next_tx_seq = (pi->next_tx_seq + 1) % 64;
 
-		pi->unacked_frames++;
+		if (bt_cb(skb)->retries == 1)
+			pi->unacked_frames++;
+
 		pi->frames_sent++;
 
 		if (skb_queue_is_last(TX_QUEUE(sk), skb))
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index fc85e7ae33c7..299fe56a9668 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -679,7 +679,7 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, ch
 
 		if (opt == BT_FLUSHABLE_OFF) {
 			struct l2cap_conn *conn = l2cap_pi(sk)->conn;
-			/* proceed futher only when we have l2cap_conn and
+			/* proceed further only when we have l2cap_conn and
 			   No Flush support in the LM */
 			if (!conn || !lmp_no_flush_capable(conn->hcon->hdev)) {
 				err = -EINVAL;
@@ -923,8 +923,9 @@ void __l2cap_sock_close(struct sock *sk, int reason)
 			rsp.status = cpu_to_le16(L2CAP_CS_NO_INFO);
 			l2cap_send_cmd(conn, l2cap_pi(sk)->ident,
 					L2CAP_CONN_RSP, sizeof(rsp), &rsp);
-		} else
-			l2cap_chan_del(sk, reason);
+		}
+
+		l2cap_chan_del(sk, reason);
 		break;
 
 	case BT_CONNECT:
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 0054c74e27b7..4476d8e3c0f2 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -1230,6 +1230,8 @@ static int user_confirm_reply(struct sock *sk, u16 index, unsigned char *data,
 	if (!hdev)
 		return cmd_status(sk, index, mgmt_op, ENODEV);
 
+	hci_dev_lock_bh(hdev);
+
 	if (!test_bit(HCI_UP, &hdev->flags)) {
 		err = cmd_status(sk, index, mgmt_op, ENETDOWN);
 		goto failed;
diff --git a/net/bridge/br_fdb.c b/net/bridge/br_fdb.c
index 88485cc74dc3..cc4d3c5ab1c6 100644
--- a/net/bridge/br_fdb.c
+++ b/net/bridge/br_fdb.c
@@ -169,7 +169,7 @@ void br_fdb_flush(struct net_bridge *br)
 	spin_unlock_bh(&br->hash_lock);
 }
 
-/* Flush all entries refering to a specific port.
+/* Flush all entries referring to a specific port.
  * if do_all is set also flush static entries
  */
 void br_fdb_delete_by_port(struct net_bridge *br,
diff --git a/net/bridge/br_if.c b/net/bridge/br_if.c
index dce8f0009a12..718b60366dfe 100644
--- a/net/bridge/br_if.c
+++ b/net/bridge/br_if.c
@@ -389,6 +389,7 @@ int br_add_if(struct net_bridge *br, struct net_device *dev)
 {
 	struct net_bridge_port *p;
 	int err = 0;
+	bool changed_addr;
 
 	/* Don't allow bridging non-ethernet like devices */
 	if ((dev->flags & IFF_LOOPBACK) ||
@@ -446,7 +447,7 @@ int br_add_if(struct net_bridge *br, struct net_device *dev)
 	list_add_rcu(&p->list, &br->port_list);
 
 	spin_lock_bh(&br->lock);
-	br_stp_recalculate_bridge_id(br);
+	changed_addr = br_stp_recalculate_bridge_id(br);
 	br_features_recompute(br);
 
 	if ((dev->flags & IFF_UP) && netif_carrier_ok(dev) &&
@@ -456,6 +457,9 @@ int br_add_if(struct net_bridge *br, struct net_device *dev)
 
 	br_ifinfo_notify(RTM_NEWLINK, p);
 
+	if (changed_addr)
+		call_netdevice_notifiers(NETDEV_CHANGEADDR, dev);
+
 	dev_set_mtu(br->dev, br_min_mtu(br));
 
 	kobject_uevent(&p->kobj, KOBJ_ADD);
diff --git a/net/bridge/br_ioctl.c b/net/bridge/br_ioctl.c
index cb43312b846e..3d9fca0e3370 100644
--- a/net/bridge/br_ioctl.c
+++ b/net/bridge/br_ioctl.c
@@ -106,7 +106,7 @@ static int add_del_if(struct net_bridge *br, int ifindex, int isadd)
 /*
  * Legacy ioctl's through SIOCDEVPRIVATE
  * This interface is deprecated because it was too difficult to
- * to do the translation for 32/64bit ioctl compatability.
+ * to do the translation for 32/64bit ioctl compatibility.
  */
 static int old_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
 {
diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index 030a002ff8ee..59660c909a7c 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -445,9 +445,9 @@ static struct sk_buff *br_ip6_multicast_alloc_query(struct net_bridge *br,
 	ip6h->payload_len = htons(8 + sizeof(*mldq));
 	ip6h->nexthdr = IPPROTO_HOPOPTS;
 	ip6h->hop_limit = 1;
+	ipv6_addr_set(&ip6h->daddr, htonl(0xff020000), 0, 0, htonl(1));
 	ipv6_dev_get_saddr(dev_net(br->dev), br->dev, &ip6h->daddr, 0,
 			   &ip6h->saddr);
-	ipv6_addr_set(&ip6h->daddr, htonl(0xff020000), 0, 0, htonl(1));
 	ipv6_eth_mc_map(&ip6h->daddr, eth->h_dest);
 
 	hopopt = (u8 *)(ip6h + 1);
@@ -1475,7 +1475,7 @@ static int br_multicast_ipv6_rcv(struct net_bridge *br,
 	    ip6h->payload_len == 0)
 		return 0;
 
-	len = ntohs(ip6h->payload_len);
+	len = ntohs(ip6h->payload_len) + sizeof(*ip6h);
 	if (skb->len < len)
 		return -EINVAL;
 
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index 19e2f46ed086..387013d33745 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -497,7 +497,7 @@ extern void br_stp_disable_bridge(struct net_bridge *br);
 extern void br_stp_set_enabled(struct net_bridge *br, unsigned long val);
 extern void br_stp_enable_port(struct net_bridge_port *p);
 extern void br_stp_disable_port(struct net_bridge_port *p);
-extern void br_stp_recalculate_bridge_id(struct net_bridge *br);
+extern bool br_stp_recalculate_bridge_id(struct net_bridge *br);
 extern void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a);
 extern void br_stp_set_bridge_priority(struct net_bridge *br,
 				       u16 newprio);
diff --git a/net/bridge/br_stp_if.c b/net/bridge/br_stp_if.c
index 79372d4a4055..9b61d09de9b9 100644
--- a/net/bridge/br_stp_if.c
+++ b/net/bridge/br_stp_if.c
@@ -204,7 +204,7 @@ void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *addr)
 static const unsigned short br_mac_zero_aligned[ETH_ALEN >> 1];
 
 /* called under bridge lock */
-void br_stp_recalculate_bridge_id(struct net_bridge *br)
+bool br_stp_recalculate_bridge_id(struct net_bridge *br)
 {
 	const unsigned char *br_mac_zero =
 			(const unsigned char *)br_mac_zero_aligned;
@@ -213,7 +213,7 @@ void br_stp_recalculate_bridge_id(struct net_bridge *br)
 
 	/* user has chosen a value so keep it */
 	if (br->flags & BR_SET_MAC_ADDR)
-		return;
+		return false;
 
 	list_for_each_entry(p, &br->port_list, list) {
 		if (addr == br_mac_zero ||
@@ -222,8 +222,11 @@ void br_stp_recalculate_bridge_id(struct net_bridge *br)
 
 	}
 
-	if (compare_ether_addr(br->bridge_id.addr, addr))
-		br_stp_change_bridge_id(br, addr);
+	if (compare_ether_addr(br->bridge_id.addr, addr) == 0)
+		return false;	/* no change */
+
+	br_stp_change_bridge_id(br, addr);
+	return true;
 }
 
 /* called under bridge lock */
diff --git a/net/caif/caif_socket.c b/net/caif/caif_socket.c
index 8184c031d028..37a4034dfc29 100644
--- a/net/caif/caif_socket.c
+++ b/net/caif/caif_socket.c
@@ -852,7 +852,7 @@ static int caif_connect(struct socket *sock, struct sockaddr *uaddr,
 	sock->state = SS_CONNECTING;
 	sk->sk_state = CAIF_CONNECTING;
 
-	/* Check priority value comming from socket */
+	/* Check priority value coming from socket */
 	/* if priority value is out of range it will be ajusted */
 	if (cf_sk->sk.sk_priority > CAIF_PRIO_MAX)
 		cf_sk->conn_req.priority = CAIF_PRIO_MAX;
diff --git a/net/can/af_can.c b/net/can/af_can.c
index 702be5a2c956..733d66f1b05a 100644
--- a/net/can/af_can.c
+++ b/net/can/af_can.c
@@ -95,7 +95,7 @@ struct s_pstats   can_pstats;      /* receive list statistics */
  * af_can socket functions
  */
 
-static int can_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
+int can_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
 {
 	struct sock *sk = sock->sk;
 
@@ -108,6 +108,7 @@ static int can_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
 		return -ENOIOCTLCMD;
 	}
 }
+EXPORT_SYMBOL(can_ioctl);
 
 static void can_sock_destruct(struct sock *sk)
 {
@@ -698,13 +699,9 @@ int can_proto_register(struct can_proto *cp)
 		printk(KERN_ERR "can: protocol %d already registered\n",
 		       proto);
 		err = -EBUSY;
-	} else {
+	} else
 		proto_tab[proto] = cp;
 
-		/* use generic ioctl function if not defined by module */
-		if (!cp->ops->ioctl)
-			cp->ops->ioctl = can_ioctl;
-	}
 	spin_unlock(&proto_tab_lock);
 
 	if (err < 0)
diff --git a/net/can/bcm.c b/net/can/bcm.c
index 092dc88a7c64..57b1aed79014 100644
--- a/net/can/bcm.c
+++ b/net/can/bcm.c
@@ -387,7 +387,7 @@ static void bcm_tx_timeout_tsklet(unsigned long data)
 }
 
 /*
- * bcm_tx_timeout_handler - performes cyclic CAN frame transmissions
+ * bcm_tx_timeout_handler - performs cyclic CAN frame transmissions
  */
 static enum hrtimer_restart bcm_tx_timeout_handler(struct hrtimer *hrtimer)
 {
@@ -1569,7 +1569,7 @@ static int bcm_recvmsg(struct kiocb *iocb, struct socket *sock,
 	return size;
 }
 
-static struct proto_ops bcm_ops __read_mostly = {
+static const struct proto_ops bcm_ops = {
 	.family        = PF_CAN,
 	.release       = bcm_release,
 	.bind          = sock_no_bind,
@@ -1578,7 +1578,7 @@ static struct proto_ops bcm_ops __read_mostly = {
 	.accept        = sock_no_accept,
 	.getname       = sock_no_getname,
 	.poll          = datagram_poll,
-	.ioctl         = NULL,		/* use can_ioctl() from af_can.c */
+	.ioctl         = can_ioctl,	/* use can_ioctl() from af_can.c */
 	.listen        = sock_no_listen,
 	.shutdown      = sock_no_shutdown,
 	.setsockopt    = sock_no_setsockopt,
diff --git a/net/can/raw.c b/net/can/raw.c
index 883e9d74fddf..649acfa7c70a 100644
--- a/net/can/raw.c
+++ b/net/can/raw.c
@@ -742,7 +742,7 @@ static int raw_recvmsg(struct kiocb *iocb, struct socket *sock,
 	return size;
 }
 
-static struct proto_ops raw_ops __read_mostly = {
+static const struct proto_ops raw_ops = {
 	.family        = PF_CAN,
 	.release       = raw_release,
 	.bind          = raw_bind,
@@ -751,7 +751,7 @@ static struct proto_ops raw_ops __read_mostly = {
 	.accept        = sock_no_accept,
 	.getname       = raw_getname,
 	.poll          = datagram_poll,
-	.ioctl         = NULL,		/* use can_ioctl() from af_can.c */
+	.ioctl         = can_ioctl,	/* use can_ioctl() from af_can.c */
 	.listen        = sock_no_listen,
 	.shutdown      = sock_no_shutdown,
 	.setsockopt    = raw_setsockopt,
diff --git a/net/ceph/Kconfig b/net/ceph/Kconfig
index ad424049b0cf..be683f2d401f 100644
--- a/net/ceph/Kconfig
+++ b/net/ceph/Kconfig
@@ -4,6 +4,7 @@ config CEPH_LIB
 	select LIBCRC32C
 	select CRYPTO_AES
 	select CRYPTO
+	select KEYS
 	default n
 	help
 	  Choose Y or M here to include cephlib, which provides the
diff --git a/net/ceph/auth.c b/net/ceph/auth.c
index 549c1f43e1d5..b4bf4ac090f1 100644
--- a/net/ceph/auth.c
+++ b/net/ceph/auth.c
@@ -35,12 +35,12 @@ static int ceph_auth_init_protocol(struct ceph_auth_client *ac, int protocol)
 /*
  * setup, teardown.
  */
-struct ceph_auth_client *ceph_auth_init(const char *name, const char *secret)
+struct ceph_auth_client *ceph_auth_init(const char *name, const struct ceph_crypto_key *key)
 {
 	struct ceph_auth_client *ac;
 	int ret;
 
-	dout("auth_init name '%s' secret '%s'\n", name, secret);
+	dout("auth_init name '%s'\n", name);
 
 	ret = -ENOMEM;
 	ac = kzalloc(sizeof(*ac), GFP_NOFS);
@@ -52,8 +52,8 @@ struct ceph_auth_client *ceph_auth_init(const char *name, const char *secret)
 		ac->name = name;
 	else
 		ac->name = CEPH_AUTH_NAME_DEFAULT;
-	dout("auth_init name %s secret %s\n", ac->name, secret);
-	ac->secret = secret;
+	dout("auth_init name %s\n", ac->name);
+	ac->key = key;
 	return ac;
 
 out:
diff --git a/net/ceph/auth_x.c b/net/ceph/auth_x.c
index 7fd5dfcf6e18..1587dc6010c6 100644
--- a/net/ceph/auth_x.c
+++ b/net/ceph/auth_x.c
@@ -662,14 +662,16 @@ int ceph_x_init(struct ceph_auth_client *ac)
 		goto out;
 
 	ret = -EINVAL;
-	if (!ac->secret) {
+	if (!ac->key) {
 		pr_err("no secret set (for auth_x protocol)\n");
 		goto out_nomem;
 	}
 
-	ret = ceph_crypto_key_unarmor(&xi->secret, ac->secret);
-	if (ret)
+	ret = ceph_crypto_key_clone(&xi->secret, ac->key);
+	if (ret < 0) {
+		pr_err("cannot clone key: %d\n", ret);
 		goto out_nomem;
+	}
 
 	xi->starting = true;
 	xi->ticket_handlers = RB_ROOT;
diff --git a/net/ceph/ceph_common.c b/net/ceph/ceph_common.c
index 95f96ab94bba..132963abc266 100644
--- a/net/ceph/ceph_common.c
+++ b/net/ceph/ceph_common.c
@@ -5,6 +5,8 @@
 #include <linux/fs.h>
 #include <linux/inet.h>
 #include <linux/in6.h>
+#include <linux/key.h>
+#include <keys/ceph-type.h>
 #include <linux/module.h>
 #include <linux/mount.h>
 #include <linux/parser.h>
@@ -20,6 +22,7 @@
 #include <linux/ceph/decode.h>
 #include <linux/ceph/mon_client.h>
 #include <linux/ceph/auth.h>
+#include "crypto.h"
 
 
 
@@ -117,9 +120,29 @@ int ceph_compare_options(struct ceph_options *new_opt,
 	if (ret)
 		return ret;
 
-	ret = strcmp_null(opt1->secret, opt2->secret);
-	if (ret)
-		return ret;
+	if (opt1->key && !opt2->key)
+		return -1;
+	if (!opt1->key && opt2->key)
+		return 1;
+	if (opt1->key && opt2->key) {
+		if (opt1->key->type != opt2->key->type)
+			return -1;
+		if (opt1->key->created.tv_sec != opt2->key->created.tv_sec)
+			return -1;
+		if (opt1->key->created.tv_nsec != opt2->key->created.tv_nsec)
+			return -1;
+		if (opt1->key->len != opt2->key->len)
+			return -1;
+		if (opt1->key->key && !opt2->key->key)
+			return -1;
+		if (!opt1->key->key && opt2->key->key)
+			return 1;
+		if (opt1->key->key && opt2->key->key) {
+			ret = memcmp(opt1->key->key, opt2->key->key, opt1->key->len);
+			if (ret)
+				return ret;
+		}
+	}
 
 	/* any matching mon ip implies a match */
 	for (i = 0; i < opt1->num_mon; i++) {
@@ -176,6 +199,7 @@ enum {
 	Opt_fsid,
 	Opt_name,
 	Opt_secret,
+	Opt_key,
 	Opt_ip,
 	Opt_last_string,
 	/* string args above */
@@ -192,6 +216,7 @@ static match_table_t opt_tokens = {
 	{Opt_fsid, "fsid=%s"},
 	{Opt_name, "name=%s"},
 	{Opt_secret, "secret=%s"},
+	{Opt_key, "key=%s"},
 	{Opt_ip, "ip=%s"},
 	/* string args above */
 	{Opt_noshare, "noshare"},
@@ -203,11 +228,56 @@ void ceph_destroy_options(struct ceph_options *opt)
 {
 	dout("destroy_options %p\n", opt);
 	kfree(opt->name);
-	kfree(opt->secret);
+	if (opt->key) {
+		ceph_crypto_key_destroy(opt->key);
+		kfree(opt->key);
+	}
 	kfree(opt);
 }
 EXPORT_SYMBOL(ceph_destroy_options);
 
+/* get secret from key store */
+static int get_secret(struct ceph_crypto_key *dst, const char *name) {
+	struct key *ukey;
+	int key_err;
+	int err = 0;
+	struct ceph_crypto_key *ckey;
+
+	ukey = request_key(&key_type_ceph, name, NULL);
+	if (!ukey || IS_ERR(ukey)) {
+		/* request_key errors don't map nicely to mount(2)
+		   errors; don't even try, but still printk */
+		key_err = PTR_ERR(ukey);
+		switch (key_err) {
+		case -ENOKEY:
+			pr_warning("ceph: Mount failed due to key not found: %s\n", name);
+			break;
+		case -EKEYEXPIRED:
+			pr_warning("ceph: Mount failed due to expired key: %s\n", name);
+			break;
+		case -EKEYREVOKED:
+			pr_warning("ceph: Mount failed due to revoked key: %s\n", name);
+			break;
+		default:
+			pr_warning("ceph: Mount failed due to unknown key error"
+			       " %d: %s\n", key_err, name);
+		}
+		err = -EPERM;
+		goto out;
+	}
+
+	ckey = ukey->payload.data;
+	err = ceph_crypto_key_clone(dst, ckey);
+	if (err)
+		goto out_key;
+	/* pass through, err is 0 */
+
+out_key:
+	key_put(ukey);
+out:
+	return err;
+}
+
 int ceph_parse_options(struct ceph_options **popt, char *options,
 		       const char *dev_name, const char *dev_name_end,
 		       int (*parse_extra_token)(char *c, void *private),
@@ -295,9 +365,24 @@ int ceph_parse_options(struct ceph_options **popt, char *options,
 					      GFP_KERNEL);
 			break;
 		case Opt_secret:
-			opt->secret = kstrndup(argstr[0].from,
-						argstr[0].to-argstr[0].from,
-						GFP_KERNEL);
+		        opt->key = kzalloc(sizeof(*opt->key), GFP_KERNEL);
+			if (!opt->key) {
+				err = -ENOMEM;
+				goto out;
+			}
+			err = ceph_crypto_key_unarmor(opt->key, argstr[0].from);
+			if (err < 0)
+				goto out;
+			break;
+		case Opt_key:
+		        opt->key = kzalloc(sizeof(*opt->key), GFP_KERNEL);
+			if (!opt->key) {
+				err = -ENOMEM;
+				goto out;
+			}
+			err = get_secret(opt->key, argstr[0].from);
+			if (err < 0)
+				goto out;
 			break;
 
 			/* misc */
@@ -394,8 +479,8 @@ void ceph_destroy_client(struct ceph_client *client)
 	ceph_osdc_stop(&client->osdc);
 
 	/*
-	 * make sure mds and osd connections close out before destroying
-	 * the auth module, which is needed to free those connections'
+	 * make sure osd connections close out before destroying the
+	 * auth module, which is needed to free those connections'
 	 * ceph_authorizers.
 	 */
 	ceph_msgr_flush();
@@ -496,10 +581,14 @@ static int __init init_ceph_lib(void)
 	if (ret < 0)
 		goto out;
 
-	ret = ceph_msgr_init();
+	ret = ceph_crypto_init();
 	if (ret < 0)
 		goto out_debugfs;
 
+	ret = ceph_msgr_init();
+	if (ret < 0)
+		goto out_crypto;
+
 	pr_info("loaded (mon/osd proto %d/%d, osdmap %d/%d %d/%d)\n",
 		CEPH_MONC_PROTOCOL, CEPH_OSDC_PROTOCOL,
 		CEPH_OSDMAP_VERSION, CEPH_OSDMAP_VERSION_EXT,
@@ -507,6 +596,8 @@ static int __init init_ceph_lib(void)
 
 	return 0;
 
+out_crypto:
+	ceph_crypto_shutdown();
 out_debugfs:
 	ceph_debugfs_cleanup();
 out:
@@ -517,6 +608,7 @@ static void __exit exit_ceph_lib(void)
 {
 	dout("exit_ceph_lib\n");
 	ceph_msgr_exit();
+	ceph_crypto_shutdown();
 	ceph_debugfs_cleanup();
 }
 
diff --git a/net/ceph/crypto.c b/net/ceph/crypto.c
index 7b505b0c983f..5a8009c9e0cd 100644
--- a/net/ceph/crypto.c
+++ b/net/ceph/crypto.c
@@ -5,10 +5,23 @@
 #include <linux/scatterlist.h>
 #include <linux/slab.h>
 #include <crypto/hash.h>
+#include <linux/key-type.h>
 
+#include <keys/ceph-type.h>
 #include <linux/ceph/decode.h>
 #include "crypto.h"
 
+int ceph_crypto_key_clone(struct ceph_crypto_key *dst,
+			  const struct ceph_crypto_key *src)
+{
+	memcpy(dst, src, sizeof(struct ceph_crypto_key));
+	dst->key = kmalloc(src->len, GFP_NOFS);
+	if (!dst->key)
+		return -ENOMEM;
+	memcpy(dst->key, src->key, src->len);
+	return 0;
+}
+
 int ceph_crypto_key_encode(struct ceph_crypto_key *key, void **p, void *end)
 {
 	if (*p + sizeof(u16) + sizeof(key->created) +
@@ -410,3 +423,63 @@ int ceph_encrypt2(struct ceph_crypto_key *secret, void *dst, size_t *dst_len,
 		return -EINVAL;
 	}
 }
+
+int ceph_key_instantiate(struct key *key, const void *data, size_t datalen)
+{
+	struct ceph_crypto_key *ckey;
+	int ret;
+	void *p;
+
+	ret = -EINVAL;
+	if (datalen <= 0 || datalen > 32767 || !data)
+		goto err;
+
+	ret = key_payload_reserve(key, datalen);
+	if (ret < 0)
+		goto err;
+
+	ret = -ENOMEM;
+	ckey = kmalloc(sizeof(*ckey), GFP_KERNEL);
+	if (!ckey)
+		goto err;
+
+	/* TODO ceph_crypto_key_decode should really take const input */
+	p = (void*)data;
+	ret = ceph_crypto_key_decode(ckey, &p, (char*)data+datalen);
+	if (ret < 0)
+		goto err_ckey;
+
+	key->payload.data = ckey;
+	return 0;
+
+err_ckey:
+	kfree(ckey);
+err:
+	return ret;
+}
+
+int ceph_key_match(const struct key *key, const void *description)
+{
+	return strcmp(key->description, description) == 0;
+}
+
+void ceph_key_destroy(struct key *key) {
+	struct ceph_crypto_key *ckey = key->payload.data;
+
+	ceph_crypto_key_destroy(ckey);
+}
+
+struct key_type key_type_ceph = {
+	.name		= "ceph",
+	.instantiate	= ceph_key_instantiate,
+	.match		= ceph_key_match,
+	.destroy	= ceph_key_destroy,
+};
+
+int ceph_crypto_init(void) {
+	return register_key_type(&key_type_ceph);
+}
+
+void ceph_crypto_shutdown(void) {
+	unregister_key_type(&key_type_ceph);
+}
diff --git a/net/ceph/crypto.h b/net/ceph/crypto.h
index f9eccace592b..1919d1550d75 100644
--- a/net/ceph/crypto.h
+++ b/net/ceph/crypto.h
@@ -19,6 +19,8 @@ static inline void ceph_crypto_key_destroy(struct ceph_crypto_key *key)
 	kfree(key->key);
 }
 
+extern int ceph_crypto_key_clone(struct ceph_crypto_key *dst,
+				 const struct ceph_crypto_key *src);
 extern int ceph_crypto_key_encode(struct ceph_crypto_key *key,
 				  void **p, void *end);
 extern int ceph_crypto_key_decode(struct ceph_crypto_key *key,
@@ -40,6 +42,8 @@ extern int ceph_encrypt2(struct ceph_crypto_key *secret,
 			 void *dst, size_t *dst_len,
 			 const void *src1, size_t src1_len,
 			 const void *src2, size_t src2_len);
+extern int ceph_crypto_init(void);
+extern void ceph_crypto_shutdown(void);
 
 /* armor.c */
 extern int ceph_armor(char *dst, const char *src, const char *end);
diff --git a/net/ceph/mon_client.c b/net/ceph/mon_client.c
index 8a079399174a..cbe31fa45508 100644
--- a/net/ceph/mon_client.c
+++ b/net/ceph/mon_client.c
@@ -759,7 +759,7 @@ int ceph_monc_init(struct ceph_mon_client *monc, struct ceph_client *cl)
 
 	/* authentication */
 	monc->auth = ceph_auth_init(cl->options->name,
-				    cl->options->secret);
+				    cl->options->key);
 	if (IS_ERR(monc->auth))
 		return PTR_ERR(monc->auth);
 	monc->auth->want_keys =
diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c
index 02212ed50852..50af02737a3d 100644
--- a/net/ceph/osd_client.c
+++ b/net/ceph/osd_client.c
@@ -837,8 +837,7 @@ static void __unregister_request(struct ceph_osd_client *osdc,
 			dout("moving osd to %p lru\n", req->r_osd);
 			__move_osd_to_lru(osdc, req->r_osd);
 		}
-		if (list_empty(&req->r_osd_item) &&
-		    list_empty(&req->r_linger_item))
+		if (list_empty(&req->r_linger_item))
 			req->r_osd = NULL;
 	}
 
@@ -883,7 +882,8 @@ static void __unregister_linger_request(struct ceph_osd_client *osdc,
 			dout("moving osd to %p lru\n", req->r_osd);
 			__move_osd_to_lru(osdc, req->r_osd);
 		}
-		req->r_osd = NULL;
+		if (list_empty(&req->r_osd_item))
+			req->r_osd = NULL;
 	}
 }
 
@@ -917,7 +917,7 @@ EXPORT_SYMBOL(ceph_osdc_set_request_linger);
 /*
  * Pick an osd (the first 'up' osd in the pg), allocate the osd struct
  * (as needed), and set the request r_osd appropriately.  If there is
- * no up osd, set r_osd to NULL.  Move the request to the appropiate list
+ * no up osd, set r_osd to NULL.  Move the request to the appropriate list
  * (unsent, homeless) or leave on in-flight lru.
  *
  * Return 0 if unchanged, 1 if changed, or negative on error.
@@ -1602,11 +1602,11 @@ void handle_watch_notify(struct ceph_osd_client *osdc, struct ceph_msg *msg)
 	     cookie, ver, event);
 	if (event) {
 		event_work = kmalloc(sizeof(*event_work), GFP_NOIO);
-		INIT_WORK(&event_work->work, do_event_work);
 		if (!event_work) {
 			dout("ERROR: could not allocate event_work\n");
 			goto done_err;
 		}
+		INIT_WORK(&event_work->work, do_event_work);
 		event_work->event = event;
 		event_work->ver = ver;
 		event_work->notify_id = notify_id;
@@ -1672,7 +1672,7 @@ int ceph_osdc_start_request(struct ceph_osd_client *osdc,
 	if (req->r_sent == 0) {
 		rc = __map_request(osdc, req);
 		if (rc < 0)
-			return rc;
+			goto out_unlock;
 		if (req->r_osd == NULL) {
 			dout("send_request %p no up osds in pg\n", req);
 			ceph_monc_request_next_osdmap(&osdc->client->monc);
@@ -1689,6 +1689,8 @@ int ceph_osdc_start_request(struct ceph_osd_client *osdc,
 			}
 		}
 	}
+
+out_unlock:
 	mutex_unlock(&osdc->request_mutex);
 	up_read(&osdc->map_sem);
 	return rc;
diff --git a/net/core/dev.c b/net/core/dev.c
index 0b88eba97dab..956d3b006e8b 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1140,9 +1140,6 @@ static int __dev_open(struct net_device *dev)
 
 	ASSERT_RTNL();
 
-	/*
-	 *	Is it even present?
-	 */
 	if (!netif_device_present(dev))
 		return -ENODEV;
 
@@ -1151,9 +1148,6 @@ static int __dev_open(struct net_device *dev)
 	if (ret)
 		return ret;
 
-	/*
-	 *	Call device private open method
-	 */
 	set_bit(__LINK_STATE_START, &dev->state);
 
 	if (ops->ndo_validate_addr)
@@ -1162,31 +1156,12 @@ static int __dev_open(struct net_device *dev)
 	if (!ret && ops->ndo_open)
 		ret = ops->ndo_open(dev);
 
-	/*
-	 *	If it went open OK then:
-	 */
-
 	if (ret)
 		clear_bit(__LINK_STATE_START, &dev->state);
 	else {
-		/*
-		 *	Set the flags.
-		 */
 		dev->flags |= IFF_UP;
-
-		/*
-		 *	Enable NET_DMA
-		 */
 		net_dmaengine_get();
-
-		/*
-		 *	Initialize multicasting status
-		 */
 		dev_set_rx_mode(dev);
-
-		/*
-		 *	Wakeup transmit queue engine
-		 */
 		dev_activate(dev);
 	}
 
@@ -1209,22 +1184,13 @@ int dev_open(struct net_device *dev)
 {
 	int ret;
 
-	/*
-	 *	Is it already up?
-	 */
 	if (dev->flags & IFF_UP)
 		return 0;
 
-	/*
-	 *	Open device
-	 */
 	ret = __dev_open(dev);
 	if (ret < 0)
 		return ret;
 
-	/*
-	 *	... and announce new interface.
-	 */
 	rtmsg_ifinfo(RTM_NEWLINK, dev, IFF_UP|IFF_RUNNING);
 	call_netdevice_notifiers(NETDEV_UP, dev);
 
@@ -1240,10 +1206,6 @@ static int __dev_close_many(struct list_head *head)
 	might_sleep();
 
 	list_for_each_entry(dev, head, unreg_list) {
-		/*
-		 *	Tell people we are going down, so that they can
-		 *	prepare to death, when device is still operating.
-		 */
 		call_netdevice_notifiers(NETDEV_GOING_DOWN, dev);
 
 		clear_bit(__LINK_STATE_START, &dev->state);
@@ -1272,15 +1234,7 @@ static int __dev_close_many(struct list_head *head)
 		if (ops->ndo_stop)
 			ops->ndo_stop(dev);
 
-		/*
-		 *	Device is now down.
-		 */
-
 		dev->flags &= ~IFF_UP;
-
-		/*
-		 *	Shutdown NET_DMA
-		 */
 		net_dmaengine_put();
 	}
 
@@ -1309,9 +1263,6 @@ static int dev_close_many(struct list_head *head)
 
 	__dev_close_many(head);
 
-	/*
-	 * Tell people we are down
-	 */
 	list_for_each_entry(dev, head, unreg_list) {
 		rtmsg_ifinfo(RTM_NEWLINK, dev, IFF_UP|IFF_RUNNING);
 		call_netdevice_notifiers(NETDEV_DOWN, dev);
@@ -1353,14 +1304,17 @@ EXPORT_SYMBOL(dev_close);
  */
 void dev_disable_lro(struct net_device *dev)
 {
-	if (dev->ethtool_ops && dev->ethtool_ops->get_flags &&
-	    dev->ethtool_ops->set_flags) {
-		u32 flags = dev->ethtool_ops->get_flags(dev);
-		if (flags & ETH_FLAG_LRO) {
-			flags &= ~ETH_FLAG_LRO;
-			dev->ethtool_ops->set_flags(dev, flags);
-		}
-	}
+	u32 flags;
+
+	if (dev->ethtool_ops && dev->ethtool_ops->get_flags)
+		flags = dev->ethtool_ops->get_flags(dev);
+	else
+		flags = ethtool_op_get_flags(dev);
+
+	if (!(flags & ETH_FLAG_LRO))
+		return;
+
+	__ethtool_set_flags(dev, flags & ~ETH_FLAG_LRO);
 	WARN_ON(dev->features & NETIF_F_LRO);
 }
 EXPORT_SYMBOL(dev_disable_lro);
@@ -1368,11 +1322,6 @@ EXPORT_SYMBOL(dev_disable_lro);
 
 static int dev_boot_phase = 1;
 
-/*
- *	Device change register/unregister. These are not inline or static
- *	as we export them to the world.
- */
-
 /**
  *	register_netdevice_notifier - register a network notifier block
  *	@nb: notifier
@@ -1474,6 +1423,7 @@ int call_netdevice_notifiers(unsigned long val, struct net_device *dev)
 	ASSERT_RTNL();
 	return raw_notifier_call_chain(&netdev_chain, val, dev);
 }
+EXPORT_SYMBOL(call_netdevice_notifiers);
 
 /* When > 0 there are consumers of rx skb time stamps */
 static atomic_t netstamp_needed = ATOMIC_INIT(0);
@@ -1504,6 +1454,27 @@ static inline void net_timestamp_check(struct sk_buff *skb)
 		__net_timestamp(skb);
 }
 
+static inline bool is_skb_forwardable(struct net_device *dev,
+				      struct sk_buff *skb)
+{
+	unsigned int len;
+
+	if (!(dev->flags & IFF_UP))
+		return false;
+
+	len = dev->mtu + dev->hard_header_len + VLAN_HLEN;
+	if (skb->len <= len)
+		return true;
+
+	/* if TSO is enabled, we don't care about the length as the packet
+	 * could be forwarded without being segmented before
+	 */
+	if (skb_is_gso(skb))
+		return true;
+
+	return false;
+}
+
 /**
  * dev_forward_skb - loopback an skb to another netif
  *
@@ -1527,8 +1498,7 @@ int dev_forward_skb(struct net_device *dev, struct sk_buff *skb)
 	skb_orphan(skb);
 	nf_reset(skb);
 
-	if (unlikely(!(dev->flags & IFF_UP) ||
-		     (skb->len > (dev->mtu + dev->hard_header_len + VLAN_HLEN)))) {
+	if (unlikely(!is_skb_forwardable(dev, skb))) {
 		atomic_long_inc(&dev->rx_dropped);
 		kfree_skb(skb);
 		return NET_RX_DROP;
@@ -2121,7 +2091,7 @@ int dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev,
 		u32 features;
 
 		/*
-		 * If device doesnt need skb->dst, release it right now while
+		 * If device doesn't need skb->dst, release it right now while
 		 * its hot in this cpu cache
 		 */
 		if (dev->priv_flags & IFF_XMIT_DST_RELEASE)
@@ -2181,7 +2151,7 @@ gso:
 		nskb->next = NULL;
 
 		/*
-		 * If device doesnt need nskb->dst, release it right now while
+		 * If device doesn't need nskb->dst, release it right now while
 		 * its hot in this cpu cache
 		 */
 		if (dev->priv_flags & IFF_XMIT_DST_RELEASE)
@@ -3000,8 +2970,8 @@ EXPORT_SYMBOL_GPL(br_fdb_test_addr_hook);
  * when CONFIG_NET_CLS_ACT is? otherwise some useless instructions
  * a compare and 2 stores extra right now if we dont have it on
  * but have CONFIG_NET_CLS_ACT
- * NOTE: This doesnt stop any functionality; if you dont have
- * the ingress scheduler, you just cant add policies on ingress.
+ * NOTE: This doesn't stop any functionality; if you dont have
+ * the ingress scheduler, you just can't add policies on ingress.
  *
  */
 static int ing_filter(struct sk_buff *skb, struct netdev_queue *rxq)
@@ -3830,7 +3800,7 @@ static void net_rx_action(struct softirq_action *h)
 		 * with netpoll's poll_napi().  Only the entity which
 		 * obtains the lock and sees NAPI_STATE_SCHED set will
 		 * actually make the ->poll() call.  Therefore we avoid
-		 * accidently calling ->poll() when NAPI is not scheduled.
+		 * accidentally calling ->poll() when NAPI is not scheduled.
 		 */
 		work = 0;
 		if (test_bit(NAPI_STATE_SCHED, &n->state)) {
@@ -6366,7 +6336,7 @@ static void __net_exit default_device_exit(struct net *net)
 		if (dev->rtnl_link_ops)
 			continue;
 
-		/* Push remaing network devices to init_net */
+		/* Push remaining network devices to init_net */
 		snprintf(fb_name, IFNAMSIZ, "dev%d", dev->ifindex);
 		err = dev_change_net_namespace(dev, &init_net, fb_name);
 		if (err) {
diff --git a/net/core/ethtool.c b/net/core/ethtool.c
index a1086fb0c0c7..74ead9eca126 100644
--- a/net/core/ethtool.c
+++ b/net/core/ethtool.c
@@ -141,9 +141,24 @@ u32 ethtool_op_get_flags(struct net_device *dev)
 }
 EXPORT_SYMBOL(ethtool_op_get_flags);
 
+/* Check if device can enable (or disable) particular feature coded in "data"
+ * argument. Flags "supported" describe features that can be toggled by device.
+ * If feature can not be toggled, it state (enabled or disabled) must match
+ * hardcoded device features state, otherwise flags are marked as invalid.
+ */
+bool ethtool_invalid_flags(struct net_device *dev, u32 data, u32 supported)
+{
+	u32 features = dev->features & flags_dup_features;
+	/* "data" can contain only flags_dup_features bits,
+	 * see __ethtool_set_flags */
+
+	return (features & ~supported) != (data & ~supported);
+}
+EXPORT_SYMBOL(ethtool_invalid_flags);
+
 int ethtool_op_set_flags(struct net_device *dev, u32 data, u32 supported)
 {
-	if (data & ~supported)
+	if (ethtool_invalid_flags(dev, data, supported))
 		return -EINVAL;
 
 	dev->features = ((dev->features & ~flags_dup_features) |
@@ -513,7 +528,7 @@ static int ethtool_set_one_feature(struct net_device *dev,
 	}
 }
 
-static int __ethtool_set_flags(struct net_device *dev, u32 data)
+int __ethtool_set_flags(struct net_device *dev, u32 data)
 {
 	u32 changed;
 
diff --git a/net/core/filter.c b/net/core/filter.c
index 232b1873bb28..afb8afb066bb 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -425,7 +425,7 @@ EXPORT_SYMBOL(sk_run_filter);
  * As we dont want to clear mem[] array for each packet going through
  * sk_run_filter(), we check that filter loaded by user never try to read
  * a cell if not previously written, and we check all branches to be sure
- * a malicious user doesnt try to abuse us.
+ * a malicious user doesn't try to abuse us.
  */
 static int check_load_and_stores(struct sock_filter *filter, int flen)
 {
diff --git a/net/core/link_watch.c b/net/core/link_watch.c
index 01a1101b5936..a7b342131869 100644
--- a/net/core/link_watch.c
+++ b/net/core/link_watch.c
@@ -129,7 +129,7 @@ static void linkwatch_schedule_work(int urgent)
 	if (!cancel_delayed_work(&linkwatch_work))
 		return;
 
-	/* Otherwise we reschedule it again for immediate exection. */
+	/* Otherwise we reschedule it again for immediate execution. */
 	schedule_delayed_work(&linkwatch_work, 0);
 }
 
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 49f7ea5b4c75..d7c4bb4b1820 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -196,7 +196,7 @@ EXPORT_SYMBOL_GPL(__rtnl_register);
  * as failure of this function is very unlikely, it can only happen due
  * to lack of memory when allocating the chain to store all message
  * handlers for a protocol. Meant for use in init functions where lack
- * of memory implies no sense in continueing.
+ * of memory implies no sense in continuing.
  */
 void rtnl_register(int protocol, int msgtype,
 		   rtnl_doit_func doit, rtnl_dumpit_func dumpit)
@@ -1440,7 +1440,7 @@ static int do_setlink(struct net_device *dev, struct ifinfomsg *ifm,
 errout:
 	if (err < 0 && modified && net_ratelimit())
 		printk(KERN_WARNING "A link change request failed with "
-		       "some changes comitted already. Interface %s may "
+		       "some changes committed already. Interface %s may "
 		       "have been left with an inconsistent configuration, "
 		       "please check.\n", dev->name);
 
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 801dd08908f9..7ebeed0a877c 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -2267,7 +2267,7 @@ EXPORT_SYMBOL(skb_prepare_seq_read);
  * of bytes already consumed and the next call to
  * skb_seq_read() will return the remaining part of the block.
  *
- * Note 1: The size of each block of data returned can be arbitary,
+ * Note 1: The size of each block of data returned can be arbitrary,
  *       this limitation is the cost for zerocopy seqeuental
  *       reads of potentially non linear data.
  *
diff --git a/net/core/sock.c b/net/core/sock.c
index 7dfed792434d..6e819780c232 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -215,7 +215,7 @@ __u32 sysctl_rmem_max __read_mostly = SK_RMEM_MAX;
 __u32 sysctl_wmem_default __read_mostly = SK_WMEM_MAX;
 __u32 sysctl_rmem_default __read_mostly = SK_RMEM_MAX;
 
-/* Maximal space eaten by iovec or ancilliary data plus some space */
+/* Maximal space eaten by iovec or ancillary data plus some space */
 int sysctl_optmem_max __read_mostly = sizeof(unsigned long)*(2*UIO_MAXIOV+512);
 EXPORT_SYMBOL(sysctl_optmem_max);
 
@@ -1175,7 +1175,7 @@ static void __sk_free(struct sock *sk)
 void sk_free(struct sock *sk)
 {
 	/*
-	 * We substract one from sk_wmem_alloc and can know if
+	 * We subtract one from sk_wmem_alloc and can know if
 	 * some packets are still in some tx queue.
 	 * If not null, sock_wfree() will call __sk_free(sk) later
 	 */
@@ -1185,10 +1185,10 @@ void sk_free(struct sock *sk)
 EXPORT_SYMBOL(sk_free);
 
 /*
- * Last sock_put should drop referrence to sk->sk_net. It has already
- * been dropped in sk_change_net. Taking referrence to stopping namespace
+ * Last sock_put should drop reference to sk->sk_net. It has already
+ * been dropped in sk_change_net. Taking reference to stopping namespace
  * is not an option.
- * Take referrence to a socket to remove it from hash _alive_ and after that
+ * Take reference to a socket to remove it from hash _alive_ and after that
  * destroy it in the context of init_net.
  */
 void sk_release_kernel(struct sock *sk)
diff --git a/net/dccp/output.c b/net/dccp/output.c
index 784d30210543..136d41cbcd02 100644
--- a/net/dccp/output.c
+++ b/net/dccp/output.c
@@ -143,7 +143,7 @@ static int dccp_transmit_skb(struct sock *sk, struct sk_buff *skb)
 }
 
 /**
- * dccp_determine_ccmps  -  Find out about CCID-specfic packet-size limits
+ * dccp_determine_ccmps  -  Find out about CCID-specific packet-size limits
  * We only consider the HC-sender CCID for setting the CCMPS (RFC 4340, 14.),
  * since the RX CCID is restricted to feedback packets (Acks), which are small
  * in comparison with the data traffic. A value of 0 means "no current CCMPS".
diff --git a/net/dsa/mv88e6131.c b/net/dsa/mv88e6131.c
index bb2b41bc854e..d951f93644bf 100644
--- a/net/dsa/mv88e6131.c
+++ b/net/dsa/mv88e6131.c
@@ -124,7 +124,7 @@ static int mv88e6131_setup_global(struct dsa_switch *ds)
 	 * Ignore removed tag data on doubly tagged packets, disable
 	 * flow control messages, force flow control priority to the
 	 * highest, and send all special multicast frames to the CPU
-	 * port at the higest priority.
+	 * port at the highest priority.
 	 */
 	REG_WRITE(REG_GLOBAL2, 0x05, 0x00ff);
 
diff --git a/net/ipv4/arp.c b/net/ipv4/arp.c
index 090d273d7865..1b74d3b64371 100644
--- a/net/ipv4/arp.c
+++ b/net/ipv4/arp.c
@@ -215,6 +215,9 @@ int arp_mc_map(__be32 addr, u8 *haddr, struct net_device *dev, int dir)
 	case ARPHRD_INFINIBAND:
 		ip_ib_mc_map(addr, dev->broadcast, haddr);
 		return 0;
+	case ARPHRD_IPGRE:
+		ip_ipgre_mc_map(addr, dev->broadcast, haddr);
+		return 0;
 	default:
 		if (dir) {
 			memcpy(haddr, dev->broadcast, dev->addr_len);
diff --git a/net/ipv4/cipso_ipv4.c b/net/ipv4/cipso_ipv4.c
index 094e150c6260..a0af7ea87870 100644
--- a/net/ipv4/cipso_ipv4.c
+++ b/net/ipv4/cipso_ipv4.c
@@ -112,7 +112,7 @@ int cipso_v4_rbm_strictvalid = 1;
 /* The maximum number of category ranges permitted in the ranged category tag
  * (tag #5).  You may note that the IETF draft states that the maximum number
  * of category ranges is 7, but if the low end of the last category range is
- * zero then it is possibile to fit 8 category ranges because the zero should
+ * zero then it is possible to fit 8 category ranges because the zero should
  * be omitted. */
 #define CIPSO_V4_TAG_RNG_CAT_MAX      8
 
@@ -438,7 +438,7 @@ cache_add_failure:
  *
  * Description:
  * Search the DOI definition list for a DOI definition with a DOI value that
- * matches @doi.  The caller is responsibile for calling rcu_read_[un]lock().
+ * matches @doi.  The caller is responsible for calling rcu_read_[un]lock().
  * Returns a pointer to the DOI definition on success and NULL on failure.
  */
 static struct cipso_v4_doi *cipso_v4_doi_search(u32 doi)
@@ -1293,7 +1293,7 @@ static int cipso_v4_gentag_rbm(const struct cipso_v4_doi *doi_def,
 			return ret_val;
 
 		/* This will send packets using the "optimized" format when
-		 * possibile as specified in  section 3.4.2.6 of the
+		 * possible as specified in  section 3.4.2.6 of the
 		 * CIPSO draft. */
 		if (cipso_v4_rbm_optfmt && ret_val > 0 && ret_val <= 10)
 			tag_len = 14;
@@ -1752,7 +1752,7 @@ validate_return:
 }
 
 /**
- * cipso_v4_error - Send the correct reponse for a bad packet
+ * cipso_v4_error - Send the correct response for a bad packet
  * @skb: the packet
  * @error: the error code
  * @gateway: CIPSO gateway flag
diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
index 6d85800daeb7..5345b0bee6df 100644
--- a/net/ipv4/devinet.c
+++ b/net/ipv4/devinet.c
@@ -64,6 +64,8 @@
 #include <net/rtnetlink.h>
 #include <net/net_namespace.h>
 
+#include "fib_lookup.h"
+
 static struct ipv4_devconf ipv4_devconf = {
 	.data = {
 		[IPV4_DEVCONF_ACCEPT_REDIRECTS - 1] = 1,
@@ -151,6 +153,20 @@ struct net_device *__ip_dev_find(struct net *net, __be32 addr, bool devref)
 			break;
 		}
 	}
+	if (!result) {
+		struct flowi4 fl4 = { .daddr = addr };
+		struct fib_result res = { 0 };
+		struct fib_table *local;
+
+		/* Fallback to FIB local table so that communication
+		 * over loopback subnets work.
+		 */
+		local = fib_get_table(net, RT_TABLE_LOCAL);
+		if (local &&
+		    !fib_table_lookup(local, &fl4, &res, FIB_LOOKUP_NOREF) &&
+		    res.type == RTN_LOCAL)
+			result = FIB_RES_DEV(res);
+	}
 	if (result && devref)
 		dev_hold(result);
 	rcu_read_unlock();
@@ -345,6 +361,17 @@ static void __inet_del_ifa(struct in_device *in_dev, struct in_ifaddr **ifap,
 		}
 	}
 
+	/* On promotion all secondaries from subnet are changing
+	 * the primary IP, we must remove all their routes silently
+	 * and later to add them back with new prefsrc. Do this
+	 * while all addresses are on the device list.
+	 */
+	for (ifa = promote; ifa; ifa = ifa->ifa_next) {
+		if (ifa1->ifa_mask == ifa->ifa_mask &&
+		    inet_ifa_match(ifa1->ifa_address, ifa))
+			fib_del_ifaddr(ifa, ifa1);
+	}
+
 	/* 2. Unlink it */
 
 	*ifap = ifa1->ifa_next;
@@ -364,6 +391,7 @@ static void __inet_del_ifa(struct in_device *in_dev, struct in_ifaddr **ifap,
 	blocking_notifier_call_chain(&inetaddr_chain, NETDEV_DOWN, ifa1);
 
 	if (promote) {
+		struct in_ifaddr *next_sec = promote->ifa_next;
 
 		if (prev_prom) {
 			prev_prom->ifa_next = promote->ifa_next;
@@ -375,7 +403,7 @@ static void __inet_del_ifa(struct in_device *in_dev, struct in_ifaddr **ifap,
 		rtmsg_ifa(RTM_NEWADDR, promote, nlh, pid);
 		blocking_notifier_call_chain(&inetaddr_chain,
 				NETDEV_UP, promote);
-		for (ifa = promote->ifa_next; ifa; ifa = ifa->ifa_next) {
+		for (ifa = next_sec; ifa; ifa = ifa->ifa_next) {
 			if (ifa1->ifa_mask != ifa->ifa_mask ||
 			    !inet_ifa_match(ifa1->ifa_address, ifa))
 					continue;
diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
index a373a259253c..451088330bbb 100644
--- a/net/ipv4/fib_frontend.c
+++ b/net/ipv4/fib_frontend.c
@@ -228,7 +228,7 @@ int fib_validate_source(__be32 src, __be32 dst, u8 tos, int oif,
 		if (res.type != RTN_LOCAL || !accept_local)
 			goto e_inval;
 	}
-	*spec_dst = FIB_RES_PREFSRC(res);
+	*spec_dst = FIB_RES_PREFSRC(net, res);
 	fib_combine_itag(itag, &res);
 	dev_match = false;
 
@@ -258,7 +258,7 @@ int fib_validate_source(__be32 src, __be32 dst, u8 tos, int oif,
 	ret = 0;
 	if (fib_lookup(net, &fl4, &res) == 0) {
 		if (res.type == RTN_UNICAST) {
-			*spec_dst = FIB_RES_PREFSRC(res);
+			*spec_dst = FIB_RES_PREFSRC(net, res);
 			ret = FIB_RES_NH(res).nh_scope >= RT_SCOPE_HOST;
 		}
 	}
@@ -722,12 +722,17 @@ void fib_add_ifaddr(struct in_ifaddr *ifa)
 	}
 }
 
-static void fib_del_ifaddr(struct in_ifaddr *ifa)
+/* Delete primary or secondary address.
+ * Optionally, on secondary address promotion consider the addresses
+ * from subnet iprim as deleted, even if they are in device list.
+ * In this case the secondary ifa can be in device list.
+ */
+void fib_del_ifaddr(struct in_ifaddr *ifa, struct in_ifaddr *iprim)
 {
 	struct in_device *in_dev = ifa->ifa_dev;
 	struct net_device *dev = in_dev->dev;
 	struct in_ifaddr *ifa1;
-	struct in_ifaddr *prim = ifa;
+	struct in_ifaddr *prim = ifa, *prim1 = NULL;
 	__be32 brd = ifa->ifa_address | ~ifa->ifa_mask;
 	__be32 any = ifa->ifa_address & ifa->ifa_mask;
 #define LOCAL_OK	1
@@ -735,17 +740,26 @@ static void fib_del_ifaddr(struct in_ifaddr *ifa)
 #define BRD0_OK		4
 #define BRD1_OK		8
 	unsigned ok = 0;
+	int subnet = 0;		/* Primary network */
+	int gone = 1;		/* Address is missing */
+	int same_prefsrc = 0;	/* Another primary with same IP */
 
-	if (!(ifa->ifa_flags & IFA_F_SECONDARY))
-		fib_magic(RTM_DELROUTE,
-			  dev->flags & IFF_LOOPBACK ? RTN_LOCAL : RTN_UNICAST,
-			  any, ifa->ifa_prefixlen, prim);
-	else {
+	if (ifa->ifa_flags & IFA_F_SECONDARY) {
 		prim = inet_ifa_byprefix(in_dev, any, ifa->ifa_mask);
 		if (prim == NULL) {
 			printk(KERN_WARNING "fib_del_ifaddr: bug: prim == NULL\n");
 			return;
 		}
+		if (iprim && iprim != prim) {
+			printk(KERN_WARNING "fib_del_ifaddr: bug: iprim != prim\n");
+			return;
+		}
+	} else if (!ipv4_is_zeronet(any) &&
+		   (any != ifa->ifa_local || ifa->ifa_prefixlen < 32)) {
+		fib_magic(RTM_DELROUTE,
+			  dev->flags & IFF_LOOPBACK ? RTN_LOCAL : RTN_UNICAST,
+			  any, ifa->ifa_prefixlen, prim);
+		subnet = 1;
 	}
 
 	/* Deletion is more complicated than add.
@@ -755,6 +769,49 @@ static void fib_del_ifaddr(struct in_ifaddr *ifa)
 	 */
 
 	for (ifa1 = in_dev->ifa_list; ifa1; ifa1 = ifa1->ifa_next) {
+		if (ifa1 == ifa) {
+			/* promotion, keep the IP */
+			gone = 0;
+			continue;
+		}
+		/* Ignore IFAs from our subnet */
+		if (iprim && ifa1->ifa_mask == iprim->ifa_mask &&
+		    inet_ifa_match(ifa1->ifa_address, iprim))
+			continue;
+
+		/* Ignore ifa1 if it uses different primary IP (prefsrc) */
+		if (ifa1->ifa_flags & IFA_F_SECONDARY) {
+			/* Another address from our subnet? */
+			if (ifa1->ifa_mask == prim->ifa_mask &&
+			    inet_ifa_match(ifa1->ifa_address, prim))
+				prim1 = prim;
+			else {
+				/* We reached the secondaries, so
+				 * same_prefsrc should be determined.
+				 */
+				if (!same_prefsrc)
+					continue;
+				/* Search new prim1 if ifa1 is not
+				 * using the current prim1
+				 */
+				if (!prim1 ||
+				    ifa1->ifa_mask != prim1->ifa_mask ||
+				    !inet_ifa_match(ifa1->ifa_address, prim1))
+					prim1 = inet_ifa_byprefix(in_dev,
+							ifa1->ifa_address,
+							ifa1->ifa_mask);
+				if (!prim1)
+					continue;
+				if (prim1->ifa_local != prim->ifa_local)
+					continue;
+			}
+		} else {
+			if (prim->ifa_local != ifa1->ifa_local)
+				continue;
+			prim1 = ifa1;
+			if (prim != prim1)
+				same_prefsrc = 1;
+		}
 		if (ifa->ifa_local == ifa1->ifa_local)
 			ok |= LOCAL_OK;
 		if (ifa->ifa_broadcast == ifa1->ifa_broadcast)
@@ -763,19 +820,37 @@ static void fib_del_ifaddr(struct in_ifaddr *ifa)
 			ok |= BRD1_OK;
 		if (any == ifa1->ifa_broadcast)
 			ok |= BRD0_OK;
+		/* primary has network specific broadcasts */
+		if (prim1 == ifa1 && ifa1->ifa_prefixlen < 31) {
+			__be32 brd1 = ifa1->ifa_address | ~ifa1->ifa_mask;
+			__be32 any1 = ifa1->ifa_address & ifa1->ifa_mask;
+
+			if (!ipv4_is_zeronet(any1)) {
+				if (ifa->ifa_broadcast == brd1 ||
+				    ifa->ifa_broadcast == any1)
+					ok |= BRD_OK;
+				if (brd == brd1 || brd == any1)
+					ok |= BRD1_OK;
+				if (any == brd1 || any == any1)
+					ok |= BRD0_OK;
+			}
+		}
 	}
 
 	if (!(ok & BRD_OK))
 		fib_magic(RTM_DELROUTE, RTN_BROADCAST, ifa->ifa_broadcast, 32, prim);
-	if (!(ok & BRD1_OK))
-		fib_magic(RTM_DELROUTE, RTN_BROADCAST, brd, 32, prim);
-	if (!(ok & BRD0_OK))
-		fib_magic(RTM_DELROUTE, RTN_BROADCAST, any, 32, prim);
+	if (subnet && ifa->ifa_prefixlen < 31) {
+		if (!(ok & BRD1_OK))
+			fib_magic(RTM_DELROUTE, RTN_BROADCAST, brd, 32, prim);
+		if (!(ok & BRD0_OK))
+			fib_magic(RTM_DELROUTE, RTN_BROADCAST, any, 32, prim);
+	}
 	if (!(ok & LOCAL_OK)) {
 		fib_magic(RTM_DELROUTE, RTN_LOCAL, ifa->ifa_local, 32, prim);
 
 		/* Check, that this local address finally disappeared. */
-		if (inet_addr_type(dev_net(dev), ifa->ifa_local) != RTN_LOCAL) {
+		if (gone &&
+		    inet_addr_type(dev_net(dev), ifa->ifa_local) != RTN_LOCAL) {
 			/* And the last, but not the least thing.
 			 * We must flush stray FIB entries.
 			 *
@@ -885,6 +960,7 @@ static int fib_inetaddr_event(struct notifier_block *this, unsigned long event,
 {
 	struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
 	struct net_device *dev = ifa->ifa_dev->dev;
+	struct net *net = dev_net(dev);
 
 	switch (event) {
 	case NETDEV_UP:
@@ -892,12 +968,12 @@ static int fib_inetaddr_event(struct notifier_block *this, unsigned long event,
 #ifdef CONFIG_IP_ROUTE_MULTIPATH
 		fib_sync_up(dev);
 #endif
-		fib_update_nh_saddrs(dev);
+		atomic_inc(&net->ipv4.dev_addr_genid);
 		rt_cache_flush(dev_net(dev), -1);
 		break;
 	case NETDEV_DOWN:
-		fib_del_ifaddr(ifa);
-		fib_update_nh_saddrs(dev);
+		fib_del_ifaddr(ifa, NULL);
+		atomic_inc(&net->ipv4.dev_addr_genid);
 		if (ifa->ifa_dev->ifa_list == NULL) {
 			/* Last address was deleted from this interface.
 			 * Disable IP.
@@ -915,6 +991,7 @@ static int fib_netdev_event(struct notifier_block *this, unsigned long event, vo
 {
 	struct net_device *dev = ptr;
 	struct in_device *in_dev = __in_dev_get_rtnl(dev);
+	struct net *net = dev_net(dev);
 
 	if (event == NETDEV_UNREGISTER) {
 		fib_disable_ip(dev, 2, -1);
@@ -932,6 +1009,7 @@ static int fib_netdev_event(struct notifier_block *this, unsigned long event, vo
 #ifdef CONFIG_IP_ROUTE_MULTIPATH
 		fib_sync_up(dev);
 #endif
+		atomic_inc(&net->ipv4.dev_addr_genid);
 		rt_cache_flush(dev_net(dev), -1);
 		break;
 	case NETDEV_DOWN:
@@ -990,6 +1068,7 @@ static void ip_fib_net_exit(struct net *net)
 	fib4_rules_exit(net);
 #endif
 
+	rtnl_lock();
 	for (i = 0; i < FIB_TABLE_HASHSZ; i++) {
 		struct fib_table *tb;
 		struct hlist_head *head;
@@ -1002,6 +1081,7 @@ static void ip_fib_net_exit(struct net *net)
 			fib_free_table(tb);
 		}
 	}
+	rtnl_unlock();
 	kfree(net->ipv4.fib_table_hash);
 }
 
diff --git a/net/ipv4/fib_lookup.h b/net/ipv4/fib_lookup.h
index 4ec323875a02..af0f14aba169 100644
--- a/net/ipv4/fib_lookup.h
+++ b/net/ipv4/fib_lookup.h
@@ -10,7 +10,6 @@ struct fib_alias {
 	struct fib_info		*fa_info;
 	u8			fa_tos;
 	u8			fa_type;
-	u8			fa_scope;
 	u8			fa_state;
 	struct rcu_head		rcu;
 };
@@ -29,7 +28,7 @@ extern void fib_release_info(struct fib_info *);
 extern struct fib_info *fib_create_info(struct fib_config *cfg);
 extern int fib_nh_match(struct fib_config *cfg, struct fib_info *fi);
 extern int fib_dump_info(struct sk_buff *skb, u32 pid, u32 seq, int event,
-			 u32 tb_id, u8 type, u8 scope, __be32 dst,
+			 u32 tb_id, u8 type, __be32 dst,
 			 int dst_len, u8 tos, struct fib_info *fi,
 			 unsigned int);
 extern void rtmsg_fib(int event, __be32 key, struct fib_alias *fa,
diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c
index 622ac4c95026..641a5a2a9f9c 100644
--- a/net/ipv4/fib_semantics.c
+++ b/net/ipv4/fib_semantics.c
@@ -222,7 +222,7 @@ static inline unsigned int fib_info_hashfn(const struct fib_info *fi)
 	unsigned int mask = (fib_info_hash_size - 1);
 	unsigned int val = fi->fib_nhs;
 
-	val ^= fi->fib_protocol;
+	val ^= (fi->fib_protocol << 8) | fi->fib_scope;
 	val ^= (__force u32)fi->fib_prefsrc;
 	val ^= fi->fib_priority;
 	for_nexthops(fi) {
@@ -248,10 +248,11 @@ static struct fib_info *fib_find_info(const struct fib_info *nfi)
 		if (fi->fib_nhs != nfi->fib_nhs)
 			continue;
 		if (nfi->fib_protocol == fi->fib_protocol &&
+		    nfi->fib_scope == fi->fib_scope &&
 		    nfi->fib_prefsrc == fi->fib_prefsrc &&
 		    nfi->fib_priority == fi->fib_priority &&
 		    memcmp(nfi->fib_metrics, fi->fib_metrics,
-			   sizeof(fi->fib_metrics)) == 0 &&
+			   sizeof(u32) * RTAX_MAX) == 0 &&
 		    ((nfi->fib_flags ^ fi->fib_flags) & ~RTNH_F_DEAD) == 0 &&
 		    (nfi->fib_nhs == 0 || nh_comp(fi, nfi) == 0))
 			return fi;
@@ -328,7 +329,7 @@ void rtmsg_fib(int event, __be32 key, struct fib_alias *fa,
 		goto errout;
 
 	err = fib_dump_info(skb, info->pid, seq, event, tb_id,
-			    fa->fa_type, fa->fa_scope, key, dst_len,
+			    fa->fa_type, key, dst_len,
 			    fa->fa_tos, fa->fa_info, nlm_flags);
 	if (err < 0) {
 		/* -EMSGSIZE implies BUG in fib_nlmsg_size() */
@@ -695,6 +696,16 @@ static void fib_info_hash_move(struct hlist_head *new_info_hash,
 	fib_info_hash_free(old_laddrhash, bytes);
 }
 
+__be32 fib_info_update_nh_saddr(struct net *net, struct fib_nh *nh)
+{
+	nh->nh_saddr = inet_select_addr(nh->nh_dev,
+					nh->nh_gw,
+					nh->nh_parent->fib_scope);
+	nh->nh_saddr_genid = atomic_read(&net->ipv4.dev_addr_genid);
+
+	return nh->nh_saddr;
+}
+
 struct fib_info *fib_create_info(struct fib_config *cfg)
 {
 	int err;
@@ -753,6 +764,7 @@ struct fib_info *fib_create_info(struct fib_config *cfg)
 
 	fi->fib_net = hold_net(net);
 	fi->fib_protocol = cfg->fc_protocol;
+	fi->fib_scope = cfg->fc_scope;
 	fi->fib_flags = cfg->fc_flags;
 	fi->fib_priority = cfg->fc_priority;
 	fi->fib_prefsrc = cfg->fc_prefsrc;
@@ -854,10 +866,7 @@ struct fib_info *fib_create_info(struct fib_config *cfg)
 	}
 
 	change_nexthops(fi) {
-		nexthop_nh->nh_cfg_scope = cfg->fc_scope;
-		nexthop_nh->nh_saddr = inet_select_addr(nexthop_nh->nh_dev,
-							nexthop_nh->nh_gw,
-							nexthop_nh->nh_cfg_scope);
+		fib_info_update_nh_saddr(net, nexthop_nh);
 	} endfor_nexthops(fi)
 
 link_it:
@@ -906,7 +915,7 @@ failure:
 }
 
 int fib_dump_info(struct sk_buff *skb, u32 pid, u32 seq, int event,
-		  u32 tb_id, u8 type, u8 scope, __be32 dst, int dst_len, u8 tos,
+		  u32 tb_id, u8 type, __be32 dst, int dst_len, u8 tos,
 		  struct fib_info *fi, unsigned int flags)
 {
 	struct nlmsghdr *nlh;
@@ -928,7 +937,7 @@ int fib_dump_info(struct sk_buff *skb, u32 pid, u32 seq, int event,
 	NLA_PUT_U32(skb, RTA_TABLE, tb_id);
 	rtm->rtm_type = type;
 	rtm->rtm_flags = fi->fib_flags;
-	rtm->rtm_scope = scope;
+	rtm->rtm_scope = fi->fib_scope;
 	rtm->rtm_protocol = fi->fib_protocol;
 
 	if (rtm->rtm_dst_len)
@@ -1084,7 +1093,7 @@ void fib_select_default(struct fib_result *res)
 	list_for_each_entry_rcu(fa, fa_head, fa_list) {
 		struct fib_info *next_fi = fa->fa_info;
 
-		if (fa->fa_scope != res->scope ||
+		if (next_fi->fib_scope != res->scope ||
 		    fa->fa_type != RTN_UNICAST)
 			continue;
 
@@ -1128,24 +1137,6 @@ out:
 	return;
 }
 
-void fib_update_nh_saddrs(struct net_device *dev)
-{
-	struct hlist_head *head;
-	struct hlist_node *node;
-	struct fib_nh *nh;
-	unsigned int hash;
-
-	hash = fib_devindex_hashfn(dev->ifindex);
-	head = &fib_info_devhash[hash];
-	hlist_for_each_entry(nh, node, head, nh_hash) {
-		if (nh->nh_dev != dev)
-			continue;
-		nh->nh_saddr = inet_select_addr(nh->nh_dev,
-						nh->nh_gw,
-						nh->nh_cfg_scope);
-	}
-}
-
 #ifdef CONFIG_IP_ROUTE_MULTIPATH
 
 /*
diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c
index 3d28a35c2e1a..e9013d6c1f51 100644
--- a/net/ipv4/fib_trie.c
+++ b/net/ipv4/fib_trie.c
@@ -12,7 +12,7 @@
  *
  *   Hans Liss <hans.liss@its.uu.se>  Uppsala Universitet
  *
- * This work is based on the LPC-trie which is originally descibed in:
+ * This work is based on the LPC-trie which is originally described in:
  *
  * An experimental study of compression methods for dynamic tries
  * Stefan Nilsson and Matti Tikkanen. Algorithmica, 33(1):19-33, 2002.
@@ -1245,7 +1245,6 @@ int fib_table_insert(struct fib_table *tb, struct fib_config *cfg)
 			if (fa->fa_info->fib_priority != fi->fib_priority)
 				break;
 			if (fa->fa_type == cfg->fc_type &&
-			    fa->fa_scope == cfg->fc_scope &&
 			    fa->fa_info == fi) {
 				fa_match = fa;
 				break;
@@ -1271,7 +1270,6 @@ int fib_table_insert(struct fib_table *tb, struct fib_config *cfg)
 			new_fa->fa_tos = fa->fa_tos;
 			new_fa->fa_info = fi;
 			new_fa->fa_type = cfg->fc_type;
-			new_fa->fa_scope = cfg->fc_scope;
 			state = fa->fa_state;
 			new_fa->fa_state = state & ~FA_S_ACCESSED;
 
@@ -1308,7 +1306,6 @@ int fib_table_insert(struct fib_table *tb, struct fib_config *cfg)
 	new_fa->fa_info = fi;
 	new_fa->fa_tos = tos;
 	new_fa->fa_type = cfg->fc_type;
-	new_fa->fa_scope = cfg->fc_scope;
 	new_fa->fa_state = 0;
 	/*
 	 * Insert new entry to the list.
@@ -1362,15 +1359,15 @@ static int check_leaf(struct fib_table *tb, struct trie *t, struct leaf *l,
 
 			if (fa->fa_tos && fa->fa_tos != flp->flowi4_tos)
 				continue;
-			if (fa->fa_scope < flp->flowi4_scope)
+			if (fa->fa_info->fib_scope < flp->flowi4_scope)
 				continue;
 			fib_alias_accessed(fa);
 			err = fib_props[fa->fa_type].error;
 			if (err) {
 #ifdef CONFIG_IP_FIB_TRIE_STATS
-				t->stats.semantic_match_miss++;
+				t->stats.semantic_match_passed++;
 #endif
-				return 1;
+				return err;
 			}
 			if (fi->fib_flags & RTNH_F_DEAD)
 				continue;
@@ -1388,7 +1385,7 @@ static int check_leaf(struct fib_table *tb, struct trie *t, struct leaf *l,
 				res->prefixlen = plen;
 				res->nh_sel = nhsel;
 				res->type = fa->fa_type;
-				res->scope = fa->fa_scope;
+				res->scope = fa->fa_info->fib_scope;
 				res->fi = fi;
 				res->table = tb;
 				res->fa_head = &li->falh;
@@ -1664,7 +1661,9 @@ int fib_table_delete(struct fib_table *tb, struct fib_config *cfg)
 
 		if ((!cfg->fc_type || fa->fa_type == cfg->fc_type) &&
 		    (cfg->fc_scope == RT_SCOPE_NOWHERE ||
-		     fa->fa_scope == cfg->fc_scope) &&
+		     fa->fa_info->fib_scope == cfg->fc_scope) &&
+		    (!cfg->fc_prefsrc ||
+		     fi->fib_prefsrc == cfg->fc_prefsrc) &&
 		    (!cfg->fc_protocol ||
 		     fi->fib_protocol == cfg->fc_protocol) &&
 		    fib_nh_match(cfg, fi) == 0) {
@@ -1861,7 +1860,6 @@ static int fn_trie_dump_fa(t_key key, int plen, struct list_head *fah,
 				  RTM_NEWROUTE,
 				  tb->tb_id,
 				  fa->fa_type,
-				  fa->fa_scope,
 				  xkey,
 				  plen,
 				  fa->fa_tos,
@@ -2382,7 +2380,7 @@ static int fib_trie_seq_show(struct seq_file *seq, void *v)
 				seq_indent(seq, iter->depth+1);
 				seq_printf(seq, "  /%d %s %s", li->plen,
 					   rtn_scope(buf1, sizeof(buf1),
-						     fa->fa_scope),
+						     fa->fa_info->fib_scope),
 					   rtn_type(buf2, sizeof(buf2),
 						    fa->fa_type));
 				if (fa->fa_tos)
diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c
index a91dc1611081..e5f8a71d3a2a 100644
--- a/net/ipv4/icmp.c
+++ b/net/ipv4/icmp.c
@@ -704,7 +704,7 @@ static void icmp_unreach(struct sk_buff *skb)
 	 */
 
 	/*
-	 *	Check the other end isnt violating RFC 1122. Some routers send
+	 *	Check the other end isn't violating RFC 1122. Some routers send
 	 *	bogus responses to broadcast frames. If you see this message
 	 *	first check your netmask matches at both ends, if it does then
 	 *	get the other vendor to fix their kit.
diff --git a/net/ipv4/ip_options.c b/net/ipv4/ip_options.c
index 1906fa35860c..28a736f3442f 100644
--- a/net/ipv4/ip_options.c
+++ b/net/ipv4/ip_options.c
@@ -140,11 +140,11 @@ int ip_options_echo(struct ip_options * dopt, struct sk_buff * skb)
 				} else {
 					dopt->ts_needtime = 0;
 
-					if (soffset + 8 <= optlen) {
+					if (soffset + 7 <= optlen) {
 						__be32 addr;
 
-						memcpy(&addr, sptr+soffset-1, 4);
-						if (inet_addr_type(dev_net(skb_dst(skb)->dev), addr) != RTN_LOCAL) {
+						memcpy(&addr, dptr+soffset-1, 4);
+						if (inet_addr_type(dev_net(skb_dst(skb)->dev), addr) != RTN_UNICAST) {
 							dopt->ts_needtime = 1;
 							soffset += 8;
 						}
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index 67f241b97649..459c011b1d4a 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -603,7 +603,7 @@ slow_path:
 		/* IF: it doesn't fit, use 'mtu' - the data space left */
 		if (len > mtu)
 			len = mtu;
-		/* IF: we are not sending upto and including the packet end
+		/* IF: we are not sending up to and including the packet end
 		   then align the next start on an eight byte boundary */
 		if (len < left)	{
 			len &= ~7;
diff --git a/net/ipv4/ipconfig.c b/net/ipv4/ipconfig.c
index 2b097752426b..cbff2ecccf3d 100644
--- a/net/ipv4/ipconfig.c
+++ b/net/ipv4/ipconfig.c
@@ -1444,7 +1444,7 @@ static int __init ip_auto_config(void)
 		root_server_addr = addr;
 
 	/*
-	 * Use defaults whereever applicable.
+	 * Use defaults wherever applicable.
 	 */
 	if (ic_defaults() < 0)
 		return -1;
diff --git a/net/ipv4/netfilter/arp_tables.c b/net/ipv4/netfilter/arp_tables.c
index 4b5d457c2d76..89bc7e66d598 100644
--- a/net/ipv4/netfilter/arp_tables.c
+++ b/net/ipv4/netfilter/arp_tables.c
@@ -76,7 +76,7 @@ static inline int arp_devaddr_compare(const struct arpt_devaddr_info *ap,
 }
 
 /*
- * Unfortunatly, _b and _mask are not aligned to an int (or long int)
+ * Unfortunately, _b and _mask are not aligned to an int (or long int)
  * Some arches dont care, unrolling the loop is a win on them.
  * For other arches, we only have a 16bit alignement.
  */
@@ -1874,7 +1874,7 @@ static int __init arp_tables_init(void)
 	if (ret < 0)
 		goto err1;
 
-	/* Noone else will be downing sem now, so we won't sleep */
+	/* No one else will be downing sem now, so we won't sleep */
 	ret = xt_register_targets(arpt_builtin_tg, ARRAY_SIZE(arpt_builtin_tg));
 	if (ret < 0)
 		goto err2;
diff --git a/net/ipv4/netfilter/ip_tables.c b/net/ipv4/netfilter/ip_tables.c
index ffcea0d1678e..704915028009 100644
--- a/net/ipv4/netfilter/ip_tables.c
+++ b/net/ipv4/netfilter/ip_tables.c
@@ -2233,7 +2233,7 @@ static int __init ip_tables_init(void)
 	if (ret < 0)
 		goto err1;
 
-	/* Noone else will be downing sem now, so we won't sleep */
+	/* No one else will be downing sem now, so we won't sleep */
 	ret = xt_register_targets(ipt_builtin_tg, ARRAY_SIZE(ipt_builtin_tg));
 	if (ret < 0)
 		goto err2;
diff --git a/net/ipv4/netfilter/nf_nat_core.c b/net/ipv4/netfilter/nf_nat_core.c
index 21bcf471b25a..9c71b2755ce3 100644
--- a/net/ipv4/netfilter/nf_nat_core.c
+++ b/net/ipv4/netfilter/nf_nat_core.c
@@ -521,7 +521,7 @@ int nf_nat_protocol_register(const struct nf_nat_protocol *proto)
 }
 EXPORT_SYMBOL(nf_nat_protocol_register);
 
-/* Noone stores the protocol anywhere; simply delete it. */
+/* No one stores the protocol anywhere; simply delete it. */
 void nf_nat_protocol_unregister(const struct nf_nat_protocol *proto)
 {
 	spin_lock_bh(&nf_nat_lock);
@@ -532,7 +532,7 @@ void nf_nat_protocol_unregister(const struct nf_nat_protocol *proto)
 }
 EXPORT_SYMBOL(nf_nat_protocol_unregister);
 
-/* Noone using conntrack by the time this called. */
+/* No one using conntrack by the time this called. */
 static void nf_nat_cleanup_conntrack(struct nf_conn *ct)
 {
 	struct nf_conn_nat *nat = nf_ct_ext_find(ct, NF_CT_EXT_NAT);
diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
index e837ffd3edc3..bceaec42c37d 100644
--- a/net/ipv4/raw.c
+++ b/net/ipv4/raw.c
@@ -569,6 +569,7 @@ static int raw_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
 		rt = ip_route_output_flow(sock_net(sk), &fl4, sk);
 		if (IS_ERR(rt)) {
 			err = PTR_ERR(rt);
+			rt = NULL;
 			goto done;
 		}
 	}
@@ -621,7 +622,7 @@ do_confirm:
 static void raw_close(struct sock *sk, long timeout)
 {
 	/*
-	 * Raw sockets may have direct kernel refereneces. Kill them.
+	 * Raw sockets may have direct kernel references. Kill them.
 	 */
 	ip_ra_control(sk, 0, NULL);
 
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 870b5182ddd8..ea107515c53e 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -821,7 +821,7 @@ static int has_noalias(const struct rtable *head, const struct rtable *rth)
 }
 
 /*
- * Pertubation of rt_genid by a small quantity [1..256]
+ * Perturbation of rt_genid by a small quantity [1..256]
  * Using 8 bits of shuffling ensure we can call rt_cache_invalidate()
  * many times (2^24) without giving recent rt_genid.
  * Jenkins hash is strong enough that litle changes of rt_genid are OK.
@@ -1191,7 +1191,7 @@ restart:
 #endif
 	/*
 	 * Since lookup is lockfree, we must make sure
-	 * previous writes to rt are comitted to memory
+	 * previous writes to rt are committed to memory
 	 * before making rt visible to other CPUS.
 	 */
 	rcu_assign_pointer(rt_hash_table[hash].chain, rt);
@@ -1593,8 +1593,6 @@ static void ip_rt_update_pmtu(struct dst_entry *dst, u32 mtu)
 			rt->rt_peer_genid = rt_peer_genid();
 		}
 		check_peer_pmtu(dst, peer);
-
-		inet_putpeer(peer);
 	}
 }
 
@@ -1720,7 +1718,7 @@ void ip_rt_get_source(u8 *addr, struct rtable *rt)
 
 		rcu_read_lock();
 		if (fib_lookup(dev_net(rt->dst.dev), &fl4, &res) == 0)
-			src = FIB_RES_PREFSRC(res);
+			src = FIB_RES_PREFSRC(dev_net(rt->dst.dev), res);
 		else
 			src = inet_select_addr(rt->dst.dev, rt->rt_gateway,
 					RT_SCOPE_UNIVERSE);
@@ -2617,7 +2615,7 @@ static struct rtable *ip_route_output_slow(struct net *net,
 		fib_select_default(&res);
 
 	if (!fl4.saddr)
-		fl4.saddr = FIB_RES_PREFSRC(res);
+		fl4.saddr = FIB_RES_PREFSRC(net, res);
 
 	dev_out = FIB_RES_DEV(res);
 	fl4.flowi4_oif = dev_out->ifindex;
@@ -3221,6 +3219,8 @@ static __net_init int rt_genid_init(struct net *net)
 {
 	get_random_bytes(&net->ipv4.rt_genid,
 			 sizeof(net->ipv4.rt_genid));
+	get_random_bytes(&net->ipv4.dev_addr_genid,
+			 sizeof(net->ipv4.dev_addr_genid));
 	return 0;
 }
 
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index da782e7ab16d..bef9f04c22ba 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -2659,7 +2659,7 @@ static void DBGUNDO(struct sock *sk, const char *msg)
 #define DBGUNDO(x...) do { } while (0)
 #endif
 
-static void tcp_undo_cwr(struct sock *sk, const int undo)
+static void tcp_undo_cwr(struct sock *sk, const bool undo_ssthresh)
 {
 	struct tcp_sock *tp = tcp_sk(sk);
 
@@ -2671,14 +2671,13 @@ static void tcp_undo_cwr(struct sock *sk, const int undo)
 		else
 			tp->snd_cwnd = max(tp->snd_cwnd, tp->snd_ssthresh << 1);
 
-		if (undo && tp->prior_ssthresh > tp->snd_ssthresh) {
+		if (undo_ssthresh && tp->prior_ssthresh > tp->snd_ssthresh) {
 			tp->snd_ssthresh = tp->prior_ssthresh;
 			TCP_ECN_withdraw_cwr(tp);
 		}
 	} else {
 		tp->snd_cwnd = max(tp->snd_cwnd, tp->snd_ssthresh);
 	}
-	tcp_moderate_cwnd(tp);
 	tp->snd_cwnd_stamp = tcp_time_stamp;
 }
 
@@ -2699,7 +2698,7 @@ static int tcp_try_undo_recovery(struct sock *sk)
 		 * or our original transmission succeeded.
 		 */
 		DBGUNDO(sk, inet_csk(sk)->icsk_ca_state == TCP_CA_Loss ? "loss" : "retrans");
-		tcp_undo_cwr(sk, 1);
+		tcp_undo_cwr(sk, true);
 		if (inet_csk(sk)->icsk_ca_state == TCP_CA_Loss)
 			mib_idx = LINUX_MIB_TCPLOSSUNDO;
 		else
@@ -2726,7 +2725,7 @@ static void tcp_try_undo_dsack(struct sock *sk)
 
 	if (tp->undo_marker && !tp->undo_retrans) {
 		DBGUNDO(sk, "D-SACK");
-		tcp_undo_cwr(sk, 1);
+		tcp_undo_cwr(sk, true);
 		tp->undo_marker = 0;
 		NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPDSACKUNDO);
 	}
@@ -2779,7 +2778,7 @@ static int tcp_try_undo_partial(struct sock *sk, int acked)
 		tcp_update_reordering(sk, tcp_fackets_out(tp) + acked, 1);
 
 		DBGUNDO(sk, "Hoe");
-		tcp_undo_cwr(sk, 0);
+		tcp_undo_cwr(sk, false);
 		NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPPARTIALUNDO);
 
 		/* So... Do not make Hoe's retransmit yet.
@@ -2808,7 +2807,7 @@ static int tcp_try_undo_loss(struct sock *sk)
 
 		DBGUNDO(sk, "partial loss");
 		tp->lost_out = 0;
-		tcp_undo_cwr(sk, 1);
+		tcp_undo_cwr(sk, true);
 		NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPLOSSUNDO);
 		inet_csk(sk)->icsk_retransmits = 0;
 		tp->undo_marker = 0;
@@ -2822,8 +2821,11 @@ static int tcp_try_undo_loss(struct sock *sk)
 static inline void tcp_complete_cwr(struct sock *sk)
 {
 	struct tcp_sock *tp = tcp_sk(sk);
-	tp->snd_cwnd = min(tp->snd_cwnd, tp->snd_ssthresh);
-	tp->snd_cwnd_stamp = tcp_time_stamp;
+	/* Do not moderate cwnd if it's already undone in cwr or recovery */
+	if (tp->undo_marker && tp->snd_cwnd > tp->snd_ssthresh) {
+		tp->snd_cwnd = tp->snd_ssthresh;
+		tp->snd_cwnd_stamp = tcp_time_stamp;
+	}
 	tcp_ca_event(sk, CA_EVENT_COMPLETE_CWR);
 }
 
@@ -3494,7 +3496,7 @@ static void tcp_undo_spur_to_response(struct sock *sk, int flag)
 	if (flag & FLAG_ECE)
 		tcp_ratehalving_spur_to_response(sk);
 	else
-		tcp_undo_cwr(sk, 1);
+		tcp_undo_cwr(sk, true);
 }
 
 /* F-RTO spurious RTO detection algorithm (RFC4138)
diff --git a/net/ipv4/tcp_lp.c b/net/ipv4/tcp_lp.c
index 656d431c99ad..72f7218b03f5 100644
--- a/net/ipv4/tcp_lp.c
+++ b/net/ipv4/tcp_lp.c
@@ -12,7 +12,7 @@
  *     within cong_avoid.
  *   o Error correcting in remote HZ, therefore remote HZ will be keeped
  *     on checking and updating.
- *   o Handling calculation of One-Way-Delay (OWD) within rtt_sample, sicne
+ *   o Handling calculation of One-Way-Delay (OWD) within rtt_sample, since
  *     OWD have a similar meaning as RTT. Also correct the buggy formular.
  *   o Handle reaction for Early Congestion Indication (ECI) within
  *     pkts_acked, as mentioned within pseudo code.
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index dfa5beb0c1c8..17388c7f49c4 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -73,7 +73,7 @@ static void tcp_event_new_data_sent(struct sock *sk, struct sk_buff *skb)
 	tcp_advance_send_head(sk, skb);
 	tp->snd_nxt = TCP_SKB_CB(skb)->end_seq;
 
-	/* Don't override Nagle indefinately with F-RTO */
+	/* Don't override Nagle indefinitely with F-RTO */
 	if (tp->frto_counter == 2)
 		tp->frto_counter = 3;
 
@@ -1003,7 +1003,8 @@ int tcp_fragment(struct sock *sk, struct sk_buff *skb, u32 len,
 	int nlen;
 	u8 flags;
 
-	BUG_ON(len > skb->len);
+	if (WARN_ON(len > skb->len))
+		return -EINVAL;
 
 	nsize = skb_headlen(skb) - len;
 	if (nsize < 0)
diff --git a/net/ipv4/tcp_yeah.c b/net/ipv4/tcp_yeah.c
index dc7f43179c9a..05c3b6f0e8e1 100644
--- a/net/ipv4/tcp_yeah.c
+++ b/net/ipv4/tcp_yeah.c
@@ -20,7 +20,7 @@
 #define TCP_YEAH_DELTA        3 //log minimum fraction of cwnd to be removed on loss
 #define TCP_YEAH_EPSILON      1 //log maximum fraction to be removed on early decongestion
 #define TCP_YEAH_PHY          8 //lin maximum delta from base
-#define TCP_YEAH_RHO         16 //lin minumum number of consecutive rtt to consider competition on loss
+#define TCP_YEAH_RHO         16 //lin minimum number of consecutive rtt to consider competition on loss
 #define TCP_YEAH_ZETA        50 //lin minimum number of state switchs to reset reno_count
 
 #define TCP_SCALABLE_AI_CNT	 100U
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 588f47af5faf..f87a8eb76f3b 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -189,7 +189,7 @@ static int udp_lib_lport_inuse2(struct net *net, __u16 num,
  *  @sk:          socket struct in question
  *  @snum:        port number to look up
  *  @saddr_comp:  AF-dependent comparison of bound local IP addresses
- *  @hash2_nulladdr: AF-dependant hash value in secondary hash chains,
+ *  @hash2_nulladdr: AF-dependent hash value in secondary hash chains,
  *                   with NULL address
  */
 int udp_lib_get_port(struct sock *sk, unsigned short snum,
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 3daaf3c7703c..1493534116df 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -1084,7 +1084,7 @@ static int ipv6_get_saddr_eval(struct net *net,
 	case IPV6_SADDR_RULE_PRIVACY:
 	    {
 		/* Rule 7: Prefer public address
-		 * Note: prefer temprary address if use_tempaddr >= 2
+		 * Note: prefer temporary address if use_tempaddr >= 2
 		 */
 		int preftmp = dst->prefs & (IPV6_PREFER_SRC_PUBLIC|IPV6_PREFER_SRC_TMP) ?
 				!!(dst->prefs & IPV6_PREFER_SRC_TMP) :
@@ -1968,7 +1968,7 @@ ok:
 					 *  to the stored lifetime since we'll
 					 *  be updating the timestamp below,
 					 *  else we'll set it back to the
-					 *  minumum.
+					 *  minimum.
 					 */
 					if (prefered_lft != ifp->prefered_lft) {
 						valid_lft = stored_lft;
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index 4b13d5d8890e..afcc7099f96d 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -1113,7 +1113,7 @@ static int __init inet6_init(void)
 	/*
 	 *	ipngwg API draft makes clear that the correct semantics
 	 *	for TCP and UDP is to consider one TCP and UDP instance
-	 *	in a host availiable by both INET and INET6 APIs and
+	 *	in a host available by both INET and INET6 APIs and
 	 *	able to communicate via both network protocols.
 	 */
 
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 18208876aa8a..46cf7bea6769 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -779,7 +779,7 @@ slow_path:
 		/* IF: it doesn't fit, use 'mtu' - the data space left */
 		if (len > mtu)
 			len = mtu;
-		/* IF: we are not sending upto and including the packet end
+		/* IF: we are not sending up to and including the packet end
 		   then align the next start on an eight byte boundary */
 		if (len < left)	{
 			len &= ~7;
diff --git a/net/ipv6/ip6mr.c b/net/ipv6/ip6mr.c
index 7ff0343e05c7..29e48593bf22 100644
--- a/net/ipv6/ip6mr.c
+++ b/net/ipv6/ip6mr.c
@@ -663,7 +663,7 @@ static int pim6_rcv(struct sk_buff *skb)
 	skb_pull(skb, (u8 *)encap - skb->data);
 	skb_reset_network_header(skb);
 	skb->protocol = htons(ETH_P_IPV6);
-	skb->ip_summed = 0;
+	skb->ip_summed = CHECKSUM_NONE;
 	skb->pkt_type = PACKET_HOST;
 
 	skb_tunnel_rx(skb, reg_dev);
diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index 0e49c9db3c98..92f952d093db 100644
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -341,6 +341,8 @@ int ndisc_mc_map(struct in6_addr *addr, char *buf, struct net_device *dev, int d
 	case ARPHRD_INFINIBAND:
 		ipv6_ib_mc_map(addr, dev->broadcast, buf);
 		return 0;
+	case ARPHRD_IPGRE:
+		return ipv6_ipgre_mc_map(addr, dev->broadcast, buf);
 	default:
 		if (dir) {
 			memcpy(buf, dev->broadcast, dev->addr_len);
diff --git a/net/ipv6/netfilter/ip6_tables.c b/net/ipv6/netfilter/ip6_tables.c
index 0b2af9b85cec..5a1c6f27ffaf 100644
--- a/net/ipv6/netfilter/ip6_tables.c
+++ b/net/ipv6/netfilter/ip6_tables.c
@@ -2248,7 +2248,7 @@ static int __init ip6_tables_init(void)
 	if (ret < 0)
 		goto err1;
 
-	/* Noone else will be downing sem now, so we won't sleep */
+	/* No one else will be downing sem now, so we won't sleep */
 	ret = xt_register_targets(ip6t_builtin_tg, ARRAY_SIZE(ip6t_builtin_tg));
 	if (ret < 0)
 		goto err2;
diff --git a/net/ipv6/netfilter/nf_defrag_ipv6_hooks.c b/net/ipv6/netfilter/nf_defrag_ipv6_hooks.c
index 97c5b21b9674..cdd6d045e42e 100644
--- a/net/ipv6/netfilter/nf_defrag_ipv6_hooks.c
+++ b/net/ipv6/netfilter/nf_defrag_ipv6_hooks.c
@@ -71,7 +71,7 @@ static unsigned int ipv6_defrag(unsigned int hooknum,
 	if (reasm == NULL)
 		return NF_STOLEN;
 
-	/* error occured or not fragmented */
+	/* error occurred or not fragmented */
 	if (reasm == skb)
 		return NF_ACCEPT;
 
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 6814c8722fa7..843406f14d7b 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -854,7 +854,7 @@ static struct rt6_info *ip6_pol_route_output(struct net *net, struct fib6_table
 	return ip6_pol_route(net, table, fl6->flowi6_oif, fl6, flags);
 }
 
-struct dst_entry * ip6_route_output(struct net *net, struct sock *sk,
+struct dst_entry * ip6_route_output(struct net *net, const struct sock *sk,
 				    struct flowi6 *fl6)
 {
 	int flags = 0;
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 2b0c186862c8..56fa12538d45 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -503,6 +503,7 @@ static int tcp_v6_send_synack(struct sock *sk, struct request_sock *req,
 	dst = ip6_dst_lookup_flow(sk, &fl6, final_p, false);
 	if (IS_ERR(dst)) {
 		err = PTR_ERR(dst);
+		dst = NULL;
 		goto done;
 	}
 	skb = tcp_make_synack(sk, dst, req, rvp);
diff --git a/net/irda/iriap.c b/net/irda/iriap.c
index 5b743bdd89ba..36477538cea8 100644
--- a/net/irda/iriap.c
+++ b/net/irda/iriap.c
@@ -656,10 +656,16 @@ static void iriap_getvaluebyclass_indication(struct iriap_cb *self,
 	n = 1;
 
 	name_len = fp[n++];
+
+	IRDA_ASSERT(name_len < IAS_MAX_CLASSNAME + 1, return;);
+
 	memcpy(name, fp+n, name_len); n+=name_len;
 	name[name_len] = '\0';
 
 	attr_len = fp[n++];
+
+	IRDA_ASSERT(attr_len < IAS_MAX_ATTRIBNAME + 1, return;);
+
 	memcpy(attr, fp+n, attr_len); n+=attr_len;
 	attr[attr_len] = '\0';
 
diff --git a/net/irda/irlap.c b/net/irda/irlap.c
index 783c5f367d29..005b424494a0 100644
--- a/net/irda/irlap.c
+++ b/net/irda/irlap.c
@@ -165,7 +165,7 @@ struct irlap_cb *irlap_open(struct net_device *dev, struct qos_info *qos,
 
 	irlap_apply_default_connection_parameters(self);
 
-	self->N3 = 3; /* # connections attemts to try before giving up */
+	self->N3 = 3; /* # connections attempts to try before giving up */
 
 	self->state = LAP_NDM;
 
diff --git a/net/irda/irlap_event.c b/net/irda/irlap_event.c
index d434c8880745..bb47021c9a55 100644
--- a/net/irda/irlap_event.c
+++ b/net/irda/irlap_event.c
@@ -708,7 +708,7 @@ static int irlap_state_reply(struct irlap_cb *self, IRLAP_EVENT event,
 
 				self->frame_sent = TRUE;
 			}
-			/* Readjust our timer to accomodate devices
+			/* Readjust our timer to accommodate devices
 			 * doing faster or slower discovery than us...
 			 * Jean II */
 			irlap_start_query_timer(self, info->S, info->s);
@@ -931,7 +931,7 @@ static int irlap_state_setup(struct irlap_cb *self, IRLAP_EVENT event,
 		irlap_send_rr_frame(self, CMD_FRAME);
 
 		/* The timer is set to half the normal timer to quickly
-		 * detect a failure to negociate the new connection
+		 * detect a failure to negotiate the new connection
 		 * parameters. IrLAP 6.11.3.2, note 3.
 		 * Note that currently we don't process this failure
 		 * properly, as we should do a quick disconnect.
@@ -1052,7 +1052,7 @@ static int irlap_state_xmit_p(struct irlap_cb *self, IRLAP_EVENT event,
 				return -EPROTO;
 			}
 
-			/* Substract space used by this skb */
+			/* Subtract space used by this skb */
 			self->bytes_left -= skb->len;
 #else	/* CONFIG_IRDA_DYNAMIC_WINDOW */
 			/* Window has been adjusted for the max packet
@@ -1808,7 +1808,7 @@ static int irlap_state_xmit_s(struct irlap_cb *self, IRLAP_EVENT event,
 
 				return -EPROTO; /* Try again later */
 			}
-			/* Substract space used by this skb */
+			/* Subtract space used by this skb */
 			self->bytes_left -= skb->len;
 #else	/* CONFIG_IRDA_DYNAMIC_WINDOW */
 			/* Window has been adjusted for the max packet
diff --git a/net/irda/irlap_frame.c b/net/irda/irlap_frame.c
index 688222cbf55b..8c004161a843 100644
--- a/net/irda/irlap_frame.c
+++ b/net/irda/irlap_frame.c
@@ -848,7 +848,7 @@ void irlap_send_data_primary_poll(struct irlap_cb *self, struct sk_buff *skb)
 	 * though IrLAP is currently sending the *last* frame of the
 	 * tx-window, the driver most likely has only just started
 	 * sending the *first* frame of the same tx-window.
-	 * I.e. we are always at the very begining of or Tx window.
+	 * I.e. we are always at the very beginning of or Tx window.
 	 * Now, we are supposed to set the final timer from the end
 	 * of our tx-window to let the other peer reply. So, we need
 	 * to add extra time to compensate for the fact that we
diff --git a/net/irda/irlmp_event.c b/net/irda/irlmp_event.c
index c1fb5db81042..9505a7d06f1a 100644
--- a/net/irda/irlmp_event.c
+++ b/net/irda/irlmp_event.c
@@ -498,7 +498,7 @@ static int irlmp_state_disconnected(struct lsap_cb *self, IRLMP_EVENT event,
 	switch (event) {
 #ifdef CONFIG_IRDA_ULTRA
 	case LM_UDATA_INDICATION:
-		/* This is most bizzare. Those packets are  aka unreliable
+		/* This is most bizarre. Those packets are  aka unreliable
 		 * connected, aka IrLPT or SOCK_DGRAM/IRDAPROTO_UNITDATA.
 		 * Why do we pass them as Ultra ??? Jean II */
 		irlmp_connless_data_indication(self, skb);
diff --git a/net/irda/irnet/irnet.h b/net/irda/irnet/irnet.h
index 0d82ff5aeff1..979ecb2435a7 100644
--- a/net/irda/irnet/irnet.h
+++ b/net/irda/irnet/irnet.h
@@ -73,7 +73,7 @@
  * Infinite thanks to those brave souls for providing the infrastructure
  * upon which IrNET is built.
  *
- * Thanks to all my collegues in HP for helping me. In particular,
+ * Thanks to all my colleagues in HP for helping me. In particular,
  * thanks to Salil Pradhan and Bill Serra for W2k testing...
  * Thanks to Luiz Magalhaes for irnetd and much testing...
  *
diff --git a/net/irda/irnet/irnet_ppp.c b/net/irda/irnet/irnet_ppp.c
index 7c567b8aa89a..2bb2beb6a373 100644
--- a/net/irda/irnet/irnet_ppp.c
+++ b/net/irda/irnet/irnet_ppp.c
@@ -105,6 +105,9 @@ irnet_ctrl_write(irnet_socket *	ap,
 	      while(isspace(start[length - 1]))
 		length--;
 
+	      DABORT(length < 5 || length > NICKNAME_MAX_LEN + 5,
+		     -EINVAL, CTRL_ERROR, "Invalid nickname.\n");
+
 	      /* Copy the name for later reuse */
 	      memcpy(ap->rname, start + 5, length - 5);
 	      ap->rname[length - 5] = '\0';
diff --git a/net/irda/irqueue.c b/net/irda/irqueue.c
index 849aaf0dabb5..9715e6e5900b 100644
--- a/net/irda/irqueue.c
+++ b/net/irda/irqueue.c
@@ -40,7 +40,7 @@
  *	o the hash function for ints is pathetic (but could be changed)
  *	o locking is sometime suspicious (especially during enumeration)
  *	o most users have only a few elements (== overhead)
- *	o most users never use seach, so don't benefit from hashing
+ *	o most users never use search, so don't benefit from hashing
  * Problem already fixed :
  *	o not 64 bit compliant (most users do hashv = (int) self)
  *	o hashbin_remove() is broken => use hashbin_remove_this()
diff --git a/net/irda/irttp.c b/net/irda/irttp.c
index f6054f9ccbe3..9d9af4606970 100644
--- a/net/irda/irttp.c
+++ b/net/irda/irttp.c
@@ -1193,7 +1193,7 @@ EXPORT_SYMBOL(irttp_connect_request);
 /*
  * Function irttp_connect_confirm (handle, qos, skb)
  *
- *    Sevice user confirms TSAP connection with peer.
+ *    Service user confirms TSAP connection with peer.
  *
  */
 static void irttp_connect_confirm(void *instance, void *sap,
diff --git a/net/irda/qos.c b/net/irda/qos.c
index 2b00974e5bae..1b51bcf42394 100644
--- a/net/irda/qos.c
+++ b/net/irda/qos.c
@@ -39,16 +39,16 @@
 #include <net/irda/irlap_frame.h>
 
 /*
- * Maximum values of the baud rate we negociate with the other end.
+ * Maximum values of the baud rate we negotiate with the other end.
  * Most often, you don't have to change that, because Linux-IrDA will
  * use the maximum offered by the link layer, which usually works fine.
  * In some very rare cases, you may want to limit it to lower speeds...
  */
 int sysctl_max_baud_rate = 16000000;
 /*
- * Maximum value of the lap disconnect timer we negociate with the other end.
+ * Maximum value of the lap disconnect timer we negotiate with the other end.
  * Most often, the value below represent the best compromise, but some user
- * may want to keep the LAP alive longuer or shorter in case of link failure.
+ * may want to keep the LAP alive longer or shorter in case of link failure.
  * Remember that the threshold time (early warning) is fixed to 3s...
  */
 int sysctl_max_noreply_time = 12;
@@ -411,7 +411,7 @@ static void irlap_adjust_qos_settings(struct qos_info *qos)
 	 * Fix tx data size according to user limits - Jean II
 	 */
 	if (qos->data_size.value > sysctl_max_tx_data_size)
-		/* Allow non discrete adjustement to avoid loosing capacity */
+		/* Allow non discrete adjustement to avoid losing capacity */
 		qos->data_size.value = sysctl_max_tx_data_size;
 	/*
 	 * Override Tx window if user request it. - Jean II
diff --git a/net/irda/timer.c b/net/irda/timer.c
index 0335ba0cc593..f418cb2ad49c 100644
--- a/net/irda/timer.c
+++ b/net/irda/timer.c
@@ -59,7 +59,7 @@ void irlap_start_query_timer(struct irlap_cb *self, int S, int s)
 	 * slot time, plus add some extra time to properly receive the last
 	 * discovery packet (which is longer due to extra discovery info),
 	 * to avoid messing with for incomming connections requests and
-	 * to accomodate devices that perform discovery slower than us.
+	 * to accommodate devices that perform discovery slower than us.
 	 * Jean II */
 	timeout = ((sysctl_slot_timeout * HZ / 1000) * (S - s)
 		   + XIDEXTRA_TIMEOUT + SMALLBUSY_TIMEOUT);
diff --git a/net/iucv/af_iucv.c b/net/iucv/af_iucv.c
index 9637e45744fa..986b2a5e8769 100644
--- a/net/iucv/af_iucv.c
+++ b/net/iucv/af_iucv.c
@@ -250,7 +250,7 @@ static struct device *af_iucv_dev;
  *	PRMDATA[0..6]	socket data (max 7 bytes);
  *	PRMDATA[7]	socket data length value (len is 0xff - PRMDATA[7])
  *
- * The socket data length is computed by substracting the socket data length
+ * The socket data length is computed by subtracting the socket data length
  * value from 0xFF.
  * If the socket data len is greater 7, then PRMDATA can be used for special
  * notifications (see iucv_sock_shutdown); and further,
diff --git a/net/iucv/iucv.c b/net/iucv/iucv.c
index 1ee5dab3cfae..8f156bd86be7 100644
--- a/net/iucv/iucv.c
+++ b/net/iucv/iucv.c
@@ -735,7 +735,7 @@ static void iucv_cleanup_queue(void)
 	struct iucv_irq_list *p, *n;
 
 	/*
-	 * When a path is severed, the pathid can be reused immediatly
+	 * When a path is severed, the pathid can be reused immediately
 	 * on a iucv connect or a connection pending interrupt. Remove
 	 * all entries from the task queue that refer to a stale pathid
 	 * (iucv_path_table[ix] == NULL). Only then do the iucv connect
@@ -807,7 +807,7 @@ void iucv_unregister(struct iucv_handler *handler, int smp)
 	spin_lock_bh(&iucv_table_lock);
 	/* Remove handler from the iucv_handler_list. */
 	list_del_init(&handler->list);
-	/* Sever all pathids still refering to the handler. */
+	/* Sever all pathids still referring to the handler. */
 	list_for_each_entry_safe(p, n, &handler->paths, list) {
 		iucv_sever_pathid(p->pathid, NULL);
 		iucv_path_table[p->pathid] = NULL;
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index a40401701424..c18396c248d7 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -97,7 +97,7 @@ struct ieee80211_bss {
 	size_t supp_rates_len;
 
 	/*
-	 * During assocation, we save an ERP value from a probe response so
+	 * During association, we save an ERP value from a probe response so
 	 * that we can feed ERP info to the driver when handling the
 	 * association completes. these fields probably won't be up-to-date
 	 * otherwise, you probably don't want to use them.
diff --git a/net/mac80211/key.c b/net/mac80211/key.c
index 8c02469b7176..af3c56482c80 100644
--- a/net/mac80211/key.c
+++ b/net/mac80211/key.c
@@ -342,7 +342,7 @@ struct ieee80211_key *ieee80211_key_alloc(u32 cipher, int idx, size_t key_len,
 		if (IS_ERR(key->u.ccmp.tfm)) {
 			err = PTR_ERR(key->u.ccmp.tfm);
 			kfree(key);
-			key = ERR_PTR(err);
+			return ERR_PTR(err);
 		}
 		break;
 	case WLAN_CIPHER_SUITE_AES_CMAC:
@@ -360,7 +360,7 @@ struct ieee80211_key *ieee80211_key_alloc(u32 cipher, int idx, size_t key_len,
 		if (IS_ERR(key->u.aes_cmac.tfm)) {
 			err = PTR_ERR(key->u.aes_cmac.tfm);
 			kfree(key);
-			key = ERR_PTR(err);
+			return ERR_PTR(err);
 		}
 		break;
 	}
@@ -400,11 +400,12 @@ int ieee80211_key_link(struct ieee80211_key *key,
 {
 	struct ieee80211_key *old_key;
 	int idx, ret;
-	bool pairwise = key->conf.flags & IEEE80211_KEY_FLAG_PAIRWISE;
+	bool pairwise;
 
 	BUG_ON(!sdata);
 	BUG_ON(!key);
 
+	pairwise = key->conf.flags & IEEE80211_KEY_FLAG_PAIRWISE;
 	idx = key->conf.keyidx;
 	key->local = sdata->local;
 	key->sdata = sdata;
diff --git a/net/mac80211/mesh_pathtbl.c b/net/mac80211/mesh_pathtbl.c
index 8d65b47d9837..336ca9d0c5c4 100644
--- a/net/mac80211/mesh_pathtbl.c
+++ b/net/mac80211/mesh_pathtbl.c
@@ -628,7 +628,7 @@ void mesh_path_discard_frame(struct sk_buff *skb,
  *
  * @mpath: mesh path whose queue has to be freed
  *
- * Locking: the function must me called withing a rcu_read_lock region
+ * Locking: the function must me called within a rcu_read_lock region
  */
 void mesh_path_flush_pending(struct mesh_path *mpath)
 {
diff --git a/net/mac80211/rc80211_minstrel_ht.c b/net/mac80211/rc80211_minstrel_ht.c
index 8212a8bebf06..c06aa3ac6b9d 100644
--- a/net/mac80211/rc80211_minstrel_ht.c
+++ b/net/mac80211/rc80211_minstrel_ht.c
@@ -259,7 +259,7 @@ minstrel_ht_update_stats(struct minstrel_priv *mp, struct minstrel_ht_sta *mi)
 		}
 	}
 
-	/* try to sample up to half of the availble rates during each interval */
+	/* try to sample up to half of the available rates during each interval */
 	mi->sample_count *= 4;
 
 	cur_prob = 0;
@@ -659,18 +659,14 @@ minstrel_ht_update_caps(void *priv, struct ieee80211_supported_band *sband,
 	struct ieee80211_mcs_info *mcs = &sta->ht_cap.mcs;
 	struct ieee80211_local *local = hw_to_local(mp->hw);
 	u16 sta_cap = sta->ht_cap.cap;
+	int n_supported = 0;
 	int ack_dur;
 	int stbc;
 	int i;
 
 	/* fall back to the old minstrel for legacy stations */
-	if (!sta->ht_cap.ht_supported) {
-		msp->is_ht = false;
-		memset(&msp->legacy, 0, sizeof(msp->legacy));
-		msp->legacy.r = msp->ratelist;
-		msp->legacy.sample_table = msp->sample_table;
-		return mac80211_minstrel.rate_init(priv, sband, sta, &msp->legacy);
-	}
+	if (!sta->ht_cap.ht_supported)
+		goto use_legacy;
 
 	BUILD_BUG_ON(ARRAY_SIZE(minstrel_mcs_groups) !=
 		MINSTREL_MAX_STREAMS * MINSTREL_STREAM_GROUPS);
@@ -725,7 +721,22 @@ minstrel_ht_update_caps(void *priv, struct ieee80211_supported_band *sband,
 
 		mi->groups[i].supported =
 			mcs->rx_mask[minstrel_mcs_groups[i].streams - 1];
+
+		if (mi->groups[i].supported)
+			n_supported++;
 	}
+
+	if (!n_supported)
+		goto use_legacy;
+
+	return;
+
+use_legacy:
+	msp->is_ht = false;
+	memset(&msp->legacy, 0, sizeof(msp->legacy));
+	msp->legacy.r = msp->ratelist;
+	msp->legacy.sample_table = msp->sample_table;
+	return mac80211_minstrel.rate_init(priv, sband, sta, &msp->legacy);
 }
 
 static void
diff --git a/net/mac80211/rc80211_pid.h b/net/mac80211/rc80211_pid.h
index 6510f8ee738e..19111c7bf454 100644
--- a/net/mac80211/rc80211_pid.h
+++ b/net/mac80211/rc80211_pid.h
@@ -77,7 +77,7 @@ union rc_pid_event_data {
 };
 
 struct rc_pid_event {
-	/* The time when the event occured */
+	/* The time when the event occurred */
 	unsigned long timestamp;
 
 	/* Event ID number */
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 5c1930ba8ebe..9d192d665ff5 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -381,7 +381,7 @@ static void ieee80211_parse_qos(struct ieee80211_rx_data *rx)
  * specs were sane enough this time around to require padding each A-MSDU
  * subframe to a length that is a multiple of four.
  *
- * Padding like Atheros hardware adds which is inbetween the 802.11 header and
+ * Padding like Atheros hardware adds which is between the 802.11 header and
  * the payload is not supported, the driver is required to move the 802.11
  * header to be directly in front of the payload in that case.
  */
@@ -612,7 +612,8 @@ static void ieee80211_sta_reorder_release(struct ieee80211_hw *hw,
 				skipped++;
 				continue;
 			}
-			if (!time_after(jiffies, tid_agg_rx->reorder_time[j] +
+			if (skipped &&
+			    !time_after(jiffies, tid_agg_rx->reorder_time[j] +
 					HT_RX_REORDER_BUF_TIMEOUT))
 				goto set_release_timer;
 
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index 5a11078827ab..13e8c30adf01 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -47,9 +47,9 @@
  * Station entries are added by mac80211 when you establish a link with a
  * peer. This means different things for the different type of interfaces
  * we support. For a regular station this mean we add the AP sta when we
- * receive an assocation response from the AP. For IBSS this occurs when
+ * receive an association response from the AP. For IBSS this occurs when
  * get to know about a peer on the same IBSS. For WDS we add the sta for
- * the peer imediately upon device open. When using AP mode we add stations
+ * the peer immediately upon device open. When using AP mode we add stations
  * for each respective station upon request from userspace through nl80211.
  *
  * In order to remove a STA info structure, various sta_info_destroy_*()
@@ -243,6 +243,7 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata,
 	memcpy(sta->sta.addr, addr, ETH_ALEN);
 	sta->local = local;
 	sta->sdata = sdata;
+	sta->last_rx = jiffies;
 
 	ewma_init(&sta->avg_signal, 1024, 8);
 
diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h
index 57681149e37f..b2f95966c7f4 100644
--- a/net/mac80211/sta_info.h
+++ b/net/mac80211/sta_info.h
@@ -173,7 +173,7 @@ struct sta_ampdu_mlme {
 /**
  * enum plink_state - state of a mesh peer link finite state machine
  *
- * @PLINK_LISTEN: initial state, considered the implicit state of non existant
+ * @PLINK_LISTEN: initial state, considered the implicit state of non existent
  * 	mesh peer links
  * @PLINK_OPN_SNT: mesh plink open frame has been sent to this mesh peer
  * @PLINK_OPN_RCVD: mesh plink open frame has been received from this mesh peer
diff --git a/net/netfilter/ipset/ip_set_core.c b/net/netfilter/ipset/ip_set_core.c
index d6b48230a540..253326e8d990 100644
--- a/net/netfilter/ipset/ip_set_core.c
+++ b/net/netfilter/ipset/ip_set_core.c
@@ -893,7 +893,7 @@ ip_set_swap(struct sock *ctnl, struct sk_buff *skb,
 	to = ip_set_list[to_id];
 
 	/* Features must not change.
-	 * Not an artifical restriction anymore, as we must prevent
+	 * Not an artificial restriction anymore, as we must prevent
 	 * possible loops created by swapping in setlist type of sets. */
 	if (!(from->type->features == to->type->features &&
 	      from->type->family == to->type->family))
diff --git a/net/netfilter/ipvs/ip_vs_conn.c b/net/netfilter/ipvs/ip_vs_conn.c
index f289306cbf12..c97bd45975be 100644
--- a/net/netfilter/ipvs/ip_vs_conn.c
+++ b/net/netfilter/ipvs/ip_vs_conn.c
@@ -595,7 +595,7 @@ ip_vs_bind_dest(struct ip_vs_conn *cp, struct ip_vs_dest *dest)
 			atomic_inc(&dest->inactconns);
 	} else {
 		/* It is a persistent connection/template, so increase
-		   the peristent connection counter */
+		   the persistent connection counter */
 		atomic_inc(&dest->persistconns);
 	}
 
@@ -657,7 +657,7 @@ static inline void ip_vs_unbind_dest(struct ip_vs_conn *cp)
 		}
 	} else {
 		/* It is a persistent connection/template, so decrease
-		   the peristent connection counter */
+		   the persistent connection counter */
 		atomic_dec(&dest->persistconns);
 	}
 
diff --git a/net/netfilter/ipvs/ip_vs_lblc.c b/net/netfilter/ipvs/ip_vs_lblc.c
index f276df9896b3..87e40ea77a95 100644
--- a/net/netfilter/ipvs/ip_vs_lblc.c
+++ b/net/netfilter/ipvs/ip_vs_lblc.c
@@ -131,7 +131,7 @@ static inline void ip_vs_lblc_free(struct ip_vs_lblc_entry *en)
 {
 	list_del(&en->list);
 	/*
-	 * We don't kfree dest because it is refered either by its service
+	 * We don't kfree dest because it is referred either by its service
 	 * or the trash dest list.
 	 */
 	atomic_dec(&en->dest->refcnt);
diff --git a/net/netfilter/ipvs/ip_vs_lblcr.c b/net/netfilter/ipvs/ip_vs_lblcr.c
index cb1c9913d38b..90f618ab6dda 100644
--- a/net/netfilter/ipvs/ip_vs_lblcr.c
+++ b/net/netfilter/ipvs/ip_vs_lblcr.c
@@ -152,7 +152,7 @@ static void ip_vs_dest_set_eraseall(struct ip_vs_dest_set *set)
 	write_lock(&set->lock);
 	list_for_each_entry_safe(e, ep, &set->list, list) {
 		/*
-		 * We don't kfree dest because it is refered either
+		 * We don't kfree dest because it is referred either
 		 * by its service or by the trash dest list.
 		 */
 		atomic_dec(&e->dest->refcnt);
diff --git a/net/netfilter/ipvs/ip_vs_proto_sctp.c b/net/netfilter/ipvs/ip_vs_proto_sctp.c
index b027ccc49f43..d12ed53ec95f 100644
--- a/net/netfilter/ipvs/ip_vs_proto_sctp.c
+++ b/net/netfilter/ipvs/ip_vs_proto_sctp.c
@@ -566,7 +566,7 @@ static struct ipvs_sctp_nextstate
 	 * SHUTDOWN sent from the client, waitinf for SHUT ACK from the server
 	 */
 	/*
-	 * We recieved the data chuck, keep the state unchanged. I assume
+	 * We received the data chuck, keep the state unchanged. I assume
 	 * that still data chuncks  can be received by both the peers in
 	 * SHUDOWN state
 	 */
@@ -633,7 +633,7 @@ static struct ipvs_sctp_nextstate
 	 * SHUTDOWN sent from the server, waitinf for SHUTDOWN ACK from client
 	 */
 	/*
-	 * We recieved the data chuck, keep the state unchanged. I assume
+	 * We received the data chuck, keep the state unchanged. I assume
 	 * that still data chuncks  can be received by both the peers in
 	 * SHUDOWN state
 	 */
@@ -701,7 +701,7 @@ static struct ipvs_sctp_nextstate
 	 * SHUTDOWN ACK from the client, awaiting for SHUTDOWN COM from server
 	 */
 	/*
-	 * We recieved the data chuck, keep the state unchanged. I assume
+	 * We received the data chuck, keep the state unchanged. I assume
 	 * that still data chuncks  can be received by both the peers in
 	 * SHUDOWN state
 	 */
@@ -771,7 +771,7 @@ static struct ipvs_sctp_nextstate
 	 * SHUTDOWN ACK from the server, awaiting for SHUTDOWN COM from client
 	 */
 	/*
-	 * We recieved the data chuck, keep the state unchanged. I assume
+	 * We received the data chuck, keep the state unchanged. I assume
 	 * that still data chuncks  can be received by both the peers in
 	 * SHUDOWN state
 	 */
diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c
index 941286ca911d..2e1c11f78419 100644
--- a/net/netfilter/nf_conntrack_core.c
+++ b/net/netfilter/nf_conntrack_core.c
@@ -453,7 +453,7 @@ __nf_conntrack_confirm(struct sk_buff *skb)
 	   REJECT will give spurious warnings here. */
 	/* NF_CT_ASSERT(atomic_read(&ct->ct_general.use) == 1); */
 
-	/* No external references means noone else could have
+	/* No external references means no one else could have
 	   confirmed us. */
 	NF_CT_ASSERT(!nf_ct_is_confirmed(ct));
 	pr_debug("Confirming conntrack %p\n", ct);
@@ -901,7 +901,7 @@ nf_conntrack_in(struct net *net, u_int8_t pf, unsigned int hooknum,
 	ret = l3proto->get_l4proto(skb, skb_network_offset(skb),
 				   &dataoff, &protonum);
 	if (ret <= 0) {
-		pr_debug("not prepared to track yet or error occured\n");
+		pr_debug("not prepared to track yet or error occurred\n");
 		NF_CT_STAT_INC_ATOMIC(net, error);
 		NF_CT_STAT_INC_ATOMIC(net, invalid);
 		ret = -ret;
diff --git a/net/netfilter/nf_conntrack_proto_dccp.c b/net/netfilter/nf_conntrack_proto_dccp.c
index 9ae57c57c50e..2e664a69d7db 100644
--- a/net/netfilter/nf_conntrack_proto_dccp.c
+++ b/net/netfilter/nf_conntrack_proto_dccp.c
@@ -98,7 +98,7 @@ static const char * const dccp_state_names[] = {
 #define sIV	CT_DCCP_INVALID
 
 /*
- * DCCP state transistion table
+ * DCCP state transition table
  *
  * The assumption is the same as for TCP tracking:
  *
diff --git a/net/netfilter/nf_conntrack_proto_sctp.c b/net/netfilter/nf_conntrack_proto_sctp.c
index 6f4ee70f460b..6772b1154654 100644
--- a/net/netfilter/nf_conntrack_proto_sctp.c
+++ b/net/netfilter/nf_conntrack_proto_sctp.c
@@ -107,9 +107,9 @@ static const u8 sctp_conntracks[2][9][SCTP_CONNTRACK_MAX] = {
 /* abort        */ {sCL, sCL, sCL, sCL, sCL, sCL, sCL, sCL},
 /* shutdown     */ {sCL, sCL, sCW, sCE, sSS, sSS, sSR, sSA},
 /* shutdown_ack */ {sSA, sCL, sCW, sCE, sES, sSA, sSA, sSA},
-/* error        */ {sCL, sCL, sCW, sCE, sES, sSS, sSR, sSA},/* Cant have Stale cookie*/
+/* error        */ {sCL, sCL, sCW, sCE, sES, sSS, sSR, sSA},/* Can't have Stale cookie*/
 /* cookie_echo  */ {sCL, sCL, sCE, sCE, sES, sSS, sSR, sSA},/* 5.2.4 - Big TODO */
-/* cookie_ack   */ {sCL, sCL, sCW, sCE, sES, sSS, sSR, sSA},/* Cant come in orig dir */
+/* cookie_ack   */ {sCL, sCL, sCW, sCE, sES, sSS, sSR, sSA},/* Can't come in orig dir */
 /* shutdown_comp*/ {sCL, sCL, sCW, sCE, sES, sSS, sSR, sCL}
 	},
 	{
@@ -121,7 +121,7 @@ static const u8 sctp_conntracks[2][9][SCTP_CONNTRACK_MAX] = {
 /* shutdown     */ {sIV, sCL, sCW, sCE, sSR, sSS, sSR, sSA},
 /* shutdown_ack */ {sIV, sCL, sCW, sCE, sES, sSA, sSA, sSA},
 /* error        */ {sIV, sCL, sCW, sCL, sES, sSS, sSR, sSA},
-/* cookie_echo  */ {sIV, sCL, sCW, sCE, sES, sSS, sSR, sSA},/* Cant come in reply dir */
+/* cookie_echo  */ {sIV, sCL, sCW, sCE, sES, sSS, sSR, sSA},/* Can't come in reply dir */
 /* cookie_ack   */ {sIV, sCL, sCW, sES, sES, sSS, sSR, sSA},
 /* shutdown_comp*/ {sIV, sCL, sCW, sCE, sES, sSS, sSR, sCL}
 	}
diff --git a/net/netfilter/nf_conntrack_sip.c b/net/netfilter/nf_conntrack_sip.c
index bcf47eb518ef..237cc1981b89 100644
--- a/net/netfilter/nf_conntrack_sip.c
+++ b/net/netfilter/nf_conntrack_sip.c
@@ -707,7 +707,7 @@ static const char *ct_sdp_header_search(const char *dptr, const char *limit,
 }
 
 /* Locate a SDP header (optionally a substring within the header value),
- * optionally stopping at the first occurence of the term header, parse
+ * optionally stopping at the first occurrence of the term header, parse
  * it and return the offset and length of the data we're interested in.
  */
 int ct_sip_get_sdp_header(const struct nf_conn *ct, const char *dptr,
diff --git a/net/netfilter/nf_queue.c b/net/netfilter/nf_queue.c
index 5ab22e2bbd7d..5b466cd1272f 100644
--- a/net/netfilter/nf_queue.c
+++ b/net/netfilter/nf_queue.c
@@ -134,7 +134,7 @@ static int __nf_queue(struct sk_buff *skb,
 	const struct nf_afinfo *afinfo;
 	const struct nf_queue_handler *qh;
 
-	/* QUEUE == DROP if noone is waiting, to be safe. */
+	/* QUEUE == DROP if no one is waiting, to be safe. */
 	rcu_read_lock();
 
 	qh = rcu_dereference(queue_handler[pf]);
diff --git a/net/netlabel/netlabel_domainhash.c b/net/netlabel/netlabel_domainhash.c
index d37b7f80fa37..de0d8e4cbfb6 100644
--- a/net/netlabel/netlabel_domainhash.c
+++ b/net/netlabel/netlabel_domainhash.c
@@ -109,7 +109,7 @@ static void netlbl_domhsh_free_entry(struct rcu_head *entry)
  *
  * Description:
  * This is the hashing function for the domain hash table, it returns the
- * correct bucket number for the domain.  The caller is responsibile for
+ * correct bucket number for the domain.  The caller is responsible for
  * ensuring that the hash table is protected with either a RCU read lock or the
  * hash table lock.
  *
@@ -134,7 +134,7 @@ static u32 netlbl_domhsh_hash(const char *key)
  *
  * Description:
  * Searches the domain hash table and returns a pointer to the hash table
- * entry if found, otherwise NULL is returned.  The caller is responsibile for
+ * entry if found, otherwise NULL is returned.  The caller is responsible for
  * ensuring that the hash table is protected with either a RCU read lock or the
  * hash table lock.
  *
@@ -165,7 +165,7 @@ static struct netlbl_dom_map *netlbl_domhsh_search(const char *domain)
  * Searches the domain hash table and returns a pointer to the hash table
  * entry if an exact match is found, if an exact match is not present in the
  * hash table then the default entry is returned if valid otherwise NULL is
- * returned.  The caller is responsibile ensuring that the hash table is
+ * returned.  The caller is responsible ensuring that the hash table is
  * protected with either a RCU read lock or the hash table lock.
  *
  */
@@ -193,7 +193,7 @@ static struct netlbl_dom_map *netlbl_domhsh_search_def(const char *domain)
  *
  * Description:
  * Generate an audit record for adding a new NetLabel/LSM mapping entry with
- * the given information.  Caller is responsibile for holding the necessary
+ * the given information.  Caller is responsible for holding the necessary
  * locks.
  *
  */
@@ -605,7 +605,7 @@ int netlbl_domhsh_remove_default(struct netlbl_audit *audit_info)
  *
  * Description:
  * Look through the domain hash table searching for an entry to match @domain,
- * return a pointer to a copy of the entry or NULL.  The caller is responsibile
+ * return a pointer to a copy of the entry or NULL.  The caller is responsible
  * for ensuring that rcu_read_[un]lock() is called.
  *
  */
diff --git a/net/netlabel/netlabel_mgmt.c b/net/netlabel/netlabel_mgmt.c
index 998e85e895d0..4f251b19fbcc 100644
--- a/net/netlabel/netlabel_mgmt.c
+++ b/net/netlabel/netlabel_mgmt.c
@@ -259,7 +259,7 @@ add_failure:
  *
  * Description:
  * This function is a helper function used by the LISTALL and LISTDEF command
- * handlers.  The caller is responsibile for ensuring that the RCU read lock
+ * handlers.  The caller is responsible for ensuring that the RCU read lock
  * is held.  Returns zero on success, negative values on failure.
  *
  */
diff --git a/net/rds/ib_send.c b/net/rds/ib_send.c
index c47a511f203d..7c4dce8fa5e6 100644
--- a/net/rds/ib_send.c
+++ b/net/rds/ib_send.c
@@ -355,7 +355,7 @@ void rds_ib_send_cq_comp_handler(struct ib_cq *cq, void *context)
  *
  * Conceptually, we have two counters:
  *  -	send credits: this tells us how many WRs we're allowed
- *	to submit without overruning the reciever's queue. For
+ *	to submit without overruning the receiver's queue. For
  *	each SEND WR we post, we decrement this by one.
  *
  *  -	posted credits: this tells us how many WRs we recently
diff --git a/net/rds/iw_cm.c b/net/rds/iw_cm.c
index 712cf2d1f28e..3a60a15d1b4a 100644
--- a/net/rds/iw_cm.c
+++ b/net/rds/iw_cm.c
@@ -181,7 +181,7 @@ static int rds_iw_init_qp_attrs(struct ib_qp_init_attr *attr,
 	unsigned int send_size, recv_size;
 	int ret;
 
-	/* The offset of 1 is to accomodate the additional ACK WR. */
+	/* The offset of 1 is to accommodate the additional ACK WR. */
 	send_size = min_t(unsigned int, rds_iwdev->max_wrs, rds_iw_sysctl_max_send_wr + 1);
 	recv_size = min_t(unsigned int, rds_iwdev->max_wrs, rds_iw_sysctl_max_recv_wr + 1);
 	rds_iw_ring_resize(send_ring, send_size - 1);
diff --git a/net/rds/iw_rdma.c b/net/rds/iw_rdma.c
index 59509e9a9e72..6deaa77495e3 100644
--- a/net/rds/iw_rdma.c
+++ b/net/rds/iw_rdma.c
@@ -122,7 +122,7 @@ static int rds_iw_get_device(struct rds_sock *rs, struct rds_iw_device **rds_iwd
 #else
 			/* FIXME - needs to compare the local and remote
 			 * ipaddr/port tuple, but the ipaddr is the only
-			 * available infomation in the rds_sock (as the rest are
+			 * available information in the rds_sock (as the rest are
 			 * zero'ed.  It doesn't appear to be properly populated
 			 * during connection setup...
 			 */
diff --git a/net/rds/iw_send.c b/net/rds/iw_send.c
index 6280ea020d4e..545d8ee3efb1 100644
--- a/net/rds/iw_send.c
+++ b/net/rds/iw_send.c
@@ -307,7 +307,7 @@ void rds_iw_send_cq_comp_handler(struct ib_cq *cq, void *context)
  *
  * Conceptually, we have two counters:
  *  -	send credits: this tells us how many WRs we're allowed
- *	to submit without overruning the reciever's queue. For
+ *	to submit without overruning the receiver's queue. For
  *	each SEND WR we post, we decrement this by one.
  *
  *  -	posted credits: this tells us how many WRs we recently
diff --git a/net/rds/send.c b/net/rds/send.c
index 35b9c2e9caf1..d58ae5f9339e 100644
--- a/net/rds/send.c
+++ b/net/rds/send.c
@@ -116,7 +116,7 @@ static void release_in_xmit(struct rds_connection *conn)
 }
 
 /*
- * We're making the concious trade-off here to only send one message
+ * We're making the conscious trade-off here to only send one message
  * down the connection at a time.
  *   Pro:
  *      - tx queueing is a simple fifo list
diff --git a/net/rose/af_rose.c b/net/rose/af_rose.c
index 5ee0c62046a0..a80aef6e3d1f 100644
--- a/net/rose/af_rose.c
+++ b/net/rose/af_rose.c
@@ -978,7 +978,7 @@ int rose_rx_call_request(struct sk_buff *skb, struct net_device *dev, struct ros
 	struct sock *make;
 	struct rose_sock *make_rose;
 	struct rose_facilities_struct facilities;
-	int n, len;
+	int n;
 
 	skb->sk = NULL;		/* Initially we don't know who it's for */
 
@@ -987,9 +987,9 @@ int rose_rx_call_request(struct sk_buff *skb, struct net_device *dev, struct ros
 	 */
 	memset(&facilities, 0x00, sizeof(struct rose_facilities_struct));
 
-	len  = (((skb->data[3] >> 4) & 0x0F) + 1) >> 1;
-	len += (((skb->data[3] >> 0) & 0x0F) + 1) >> 1;
-	if (!rose_parse_facilities(skb->data + len + 4, &facilities)) {
+	if (!rose_parse_facilities(skb->data + ROSE_CALL_REQ_FACILITIES_OFF,
+				   skb->len - ROSE_CALL_REQ_FACILITIES_OFF,
+				   &facilities)) {
 		rose_transmit_clear_request(neigh, lci, ROSE_INVALID_FACILITY, 76);
 		return 0;
 	}
diff --git a/net/rose/rose_loopback.c b/net/rose/rose_loopback.c
index ae4a9d99aec7..344456206b70 100644
--- a/net/rose/rose_loopback.c
+++ b/net/rose/rose_loopback.c
@@ -73,9 +73,20 @@ static void rose_loopback_timer(unsigned long param)
 	unsigned int lci_i, lci_o;
 
 	while ((skb = skb_dequeue(&loopback_queue)) != NULL) {
+		if (skb->len < ROSE_MIN_LEN) {
+			kfree_skb(skb);
+			continue;
+		}
 		lci_i     = ((skb->data[0] << 8) & 0xF00) + ((skb->data[1] << 0) & 0x0FF);
 		frametype = skb->data[2];
-		dest      = (rose_address *)(skb->data + 4);
+		if (frametype == ROSE_CALL_REQUEST &&
+		    (skb->len <= ROSE_CALL_REQ_FACILITIES_OFF ||
+		     skb->data[ROSE_CALL_REQ_ADDR_LEN_OFF] !=
+		     ROSE_CALL_REQ_ADDR_LEN_VAL)) {
+			kfree_skb(skb);
+			continue;
+		}
+		dest      = (rose_address *)(skb->data + ROSE_CALL_REQ_DEST_ADDR_OFF);
 		lci_o     = ROSE_DEFAULT_MAXVC + 1 - lci_i;
 
 		skb_reset_transport_header(skb);
diff --git a/net/rose/rose_route.c b/net/rose/rose_route.c
index 88a77e90e7e8..479cae57d187 100644
--- a/net/rose/rose_route.c
+++ b/net/rose/rose_route.c
@@ -587,7 +587,7 @@ static int rose_clear_routes(void)
 
 /*
  *	Check that the device given is a valid AX.25 interface that is "up".
- * 	called whith RTNL
+ * 	called with RTNL
  */
 static struct net_device *rose_ax25_dev_find(char *devname)
 {
@@ -861,7 +861,7 @@ int rose_route_frame(struct sk_buff *skb, ax25_cb *ax25)
 	unsigned int lci, new_lci;
 	unsigned char cause, diagnostic;
 	struct net_device *dev;
-	int len, res = 0;
+	int res = 0;
 	char buf[11];
 
 #if 0
@@ -869,10 +869,17 @@ int rose_route_frame(struct sk_buff *skb, ax25_cb *ax25)
 		return res;
 #endif
 
+	if (skb->len < ROSE_MIN_LEN)
+		return res;
 	frametype = skb->data[2];
 	lci = ((skb->data[0] << 8) & 0xF00) + ((skb->data[1] << 0) & 0x0FF);
-	src_addr  = (rose_address *)(skb->data + 9);
-	dest_addr = (rose_address *)(skb->data + 4);
+	if (frametype == ROSE_CALL_REQUEST &&
+	    (skb->len <= ROSE_CALL_REQ_FACILITIES_OFF ||
+	     skb->data[ROSE_CALL_REQ_ADDR_LEN_OFF] !=
+	     ROSE_CALL_REQ_ADDR_LEN_VAL))
+		return res;
+	src_addr  = (rose_address *)(skb->data + ROSE_CALL_REQ_SRC_ADDR_OFF);
+	dest_addr = (rose_address *)(skb->data + ROSE_CALL_REQ_DEST_ADDR_OFF);
 
 	spin_lock_bh(&rose_neigh_list_lock);
 	spin_lock_bh(&rose_route_list_lock);
@@ -1010,12 +1017,11 @@ int rose_route_frame(struct sk_buff *skb, ax25_cb *ax25)
 		goto out;
 	}
 
-	len  = (((skb->data[3] >> 4) & 0x0F) + 1) >> 1;
-	len += (((skb->data[3] >> 0) & 0x0F) + 1) >> 1;
-
 	memset(&facilities, 0x00, sizeof(struct rose_facilities_struct));
 
-	if (!rose_parse_facilities(skb->data + len + 4, &facilities)) {
+	if (!rose_parse_facilities(skb->data + ROSE_CALL_REQ_FACILITIES_OFF,
+				   skb->len - ROSE_CALL_REQ_FACILITIES_OFF,
+				   &facilities)) {
 		rose_transmit_clear_request(rose_neigh, lci, ROSE_INVALID_FACILITY, 76);
 		goto out;
 	}
diff --git a/net/rose/rose_subr.c b/net/rose/rose_subr.c
index 1734abba26a2..f6c71caa94b9 100644
--- a/net/rose/rose_subr.c
+++ b/net/rose/rose_subr.c
@@ -142,7 +142,7 @@ void rose_write_internal(struct sock *sk, int frametype)
 		*dptr++ = ROSE_GFI | lci1;
 		*dptr++ = lci2;
 		*dptr++ = frametype;
-		*dptr++ = 0xAA;
+		*dptr++ = ROSE_CALL_REQ_ADDR_LEN_VAL;
 		memcpy(dptr, &rose->dest_addr,  ROSE_ADDR_LEN);
 		dptr   += ROSE_ADDR_LEN;
 		memcpy(dptr, &rose->source_addr, ROSE_ADDR_LEN);
@@ -246,12 +246,16 @@ static int rose_parse_national(unsigned char *p, struct rose_facilities_struct *
 	do {
 		switch (*p & 0xC0) {
 		case 0x00:
+			if (len < 2)
+				return -1;
 			p   += 2;
 			n   += 2;
 			len -= 2;
 			break;
 
 		case 0x40:
+			if (len < 3)
+				return -1;
 			if (*p == FAC_NATIONAL_RAND)
 				facilities->rand = ((p[1] << 8) & 0xFF00) + ((p[2] << 0) & 0x00FF);
 			p   += 3;
@@ -260,40 +264,61 @@ static int rose_parse_national(unsigned char *p, struct rose_facilities_struct *
 			break;
 
 		case 0x80:
+			if (len < 4)
+				return -1;
 			p   += 4;
 			n   += 4;
 			len -= 4;
 			break;
 
 		case 0xC0:
+			if (len < 2)
+				return -1;
 			l = p[1];
+			if (len < 2 + l)
+				return -1;
 			if (*p == FAC_NATIONAL_DEST_DIGI) {
 				if (!fac_national_digis_received) {
+					if (l < AX25_ADDR_LEN)
+						return -1;
 					memcpy(&facilities->source_digis[0], p + 2, AX25_ADDR_LEN);
 					facilities->source_ndigis = 1;
 				}
 			}
 			else if (*p == FAC_NATIONAL_SRC_DIGI) {
 				if (!fac_national_digis_received) {
+					if (l < AX25_ADDR_LEN)
+						return -1;
 					memcpy(&facilities->dest_digis[0], p + 2, AX25_ADDR_LEN);
 					facilities->dest_ndigis = 1;
 				}
 			}
 			else if (*p == FAC_NATIONAL_FAIL_CALL) {
+				if (l < AX25_ADDR_LEN)
+					return -1;
 				memcpy(&facilities->fail_call, p + 2, AX25_ADDR_LEN);
 			}
 			else if (*p == FAC_NATIONAL_FAIL_ADD) {
+				if (l < 1 + ROSE_ADDR_LEN)
+					return -1;
 				memcpy(&facilities->fail_addr, p + 3, ROSE_ADDR_LEN);
 			}
 			else if (*p == FAC_NATIONAL_DIGIS) {
+				if (l % AX25_ADDR_LEN)
+					return -1;
 				fac_national_digis_received = 1;
 				facilities->source_ndigis = 0;
 				facilities->dest_ndigis   = 0;
 				for (pt = p + 2, lg = 0 ; lg < l ; pt += AX25_ADDR_LEN, lg += AX25_ADDR_LEN) {
-					if (pt[6] & AX25_HBIT)
+					if (pt[6] & AX25_HBIT) {
+						if (facilities->dest_ndigis >= ROSE_MAX_DIGIS)
+							return -1;
 						memcpy(&facilities->dest_digis[facilities->dest_ndigis++], pt, AX25_ADDR_LEN);
-					else
+					} else {
+						if (facilities->source_ndigis >= ROSE_MAX_DIGIS)
+							return -1;
 						memcpy(&facilities->source_digis[facilities->source_ndigis++], pt, AX25_ADDR_LEN);
+					}
 				}
 			}
 			p   += l + 2;
@@ -314,25 +339,38 @@ static int rose_parse_ccitt(unsigned char *p, struct rose_facilities_struct *fac
 	do {
 		switch (*p & 0xC0) {
 		case 0x00:
+			if (len < 2)
+				return -1;
 			p   += 2;
 			n   += 2;
 			len -= 2;
 			break;
 
 		case 0x40:
+			if (len < 3)
+				return -1;
 			p   += 3;
 			n   += 3;
 			len -= 3;
 			break;
 
 		case 0x80:
+			if (len < 4)
+				return -1;
 			p   += 4;
 			n   += 4;
 			len -= 4;
 			break;
 
 		case 0xC0:
+			if (len < 2)
+				return -1;
 			l = p[1];
+
+			/* Prevent overflows*/
+			if (l < 10 || l > 20)
+				return -1;
+
 			if (*p == FAC_CCITT_DEST_NSAP) {
 				memcpy(&facilities->source_addr, p + 7, ROSE_ADDR_LEN);
 				memcpy(callsign, p + 12,   l - 10);
@@ -355,45 +393,44 @@ static int rose_parse_ccitt(unsigned char *p, struct rose_facilities_struct *fac
 	return n;
 }
 
-int rose_parse_facilities(unsigned char *p,
+int rose_parse_facilities(unsigned char *p, unsigned packet_len,
 	struct rose_facilities_struct *facilities)
 {
 	int facilities_len, len;
 
 	facilities_len = *p++;
 
-	if (facilities_len == 0)
+	if (facilities_len == 0 || (unsigned)facilities_len > packet_len)
 		return 0;
 
-	while (facilities_len > 0) {
-		if (*p == 0x00) {
-			facilities_len--;
-			p++;
-
-			switch (*p) {
-			case FAC_NATIONAL:		/* National */
-				len = rose_parse_national(p + 1, facilities, facilities_len - 1);
-				facilities_len -= len + 1;
-				p += len + 1;
-				break;
-
-			case FAC_CCITT:		/* CCITT */
-				len = rose_parse_ccitt(p + 1, facilities, facilities_len - 1);
-				facilities_len -= len + 1;
-				p += len + 1;
-				break;
-
-			default:
-				printk(KERN_DEBUG "ROSE: rose_parse_facilities - unknown facilities family %02X\n", *p);
-				facilities_len--;
-				p++;
-				break;
-			}
-		} else
-			break;	/* Error in facilities format */
+	while (facilities_len >= 3 && *p == 0x00) {
+		facilities_len--;
+		p++;
+
+		switch (*p) {
+		case FAC_NATIONAL:		/* National */
+			len = rose_parse_national(p + 1, facilities, facilities_len - 1);
+			break;
+
+		case FAC_CCITT:		/* CCITT */
+			len = rose_parse_ccitt(p + 1, facilities, facilities_len - 1);
+			break;
+
+		default:
+			printk(KERN_DEBUG "ROSE: rose_parse_facilities - unknown facilities family %02X\n", *p);
+			len = 1;
+			break;
+		}
+
+		if (len < 0)
+			return 0;
+		if (WARN_ON(len >= facilities_len))
+			return 0;
+		facilities_len -= len + 1;
+		p += len + 1;
 	}
 
-	return 1;
+	return facilities_len == 0;
 }
 
 static int rose_create_facilities(unsigned char *buffer, struct rose_sock *rose)
diff --git a/net/sched/act_api.c b/net/sched/act_api.c
index 15873e14cb54..14b42f4ad791 100644
--- a/net/sched/act_api.c
+++ b/net/sched/act_api.c
@@ -999,7 +999,7 @@ static int tc_ctl_action(struct sk_buff *skb, struct nlmsghdr *n, void *arg)
 	switch (n->nlmsg_type) {
 	case RTM_NEWACTION:
 		/* we are going to assume all other flags
-		 * imply create only if it doesnt exist
+		 * imply create only if it doesn't exist
 		 * Note that CREATE | EXCL implies that
 		 * but since we want avoid ambiguity (eg when flags
 		 * is zero) then just set this
diff --git a/net/sched/act_pedit.c b/net/sched/act_pedit.c
index 50c7c06c019d..7affe9a92757 100644
--- a/net/sched/act_pedit.c
+++ b/net/sched/act_pedit.c
@@ -161,7 +161,7 @@ static int tcf_pedit(struct sk_buff *skb, struct tc_action *a,
 			}
 			if (offset > 0 && offset > skb->len) {
 				pr_info("tc filter pedit"
-					" offset %d cant exceed pkt length %d\n",
+					" offset %d can't exceed pkt length %d\n",
 				       offset, skb->len);
 				goto bad;
 			}
diff --git a/net/sched/em_meta.c b/net/sched/em_meta.c
index a4de67eca824..49130e8abff0 100644
--- a/net/sched/em_meta.c
+++ b/net/sched/em_meta.c
@@ -47,7 +47,7 @@
  * 	on the meta type. Obviously, the length of the data must also
  * 	be provided for non-numeric types.
  *
- * 	Additionaly, type dependant modifiers such as shift operators
+ * 	Additionally, type dependent modifiers such as shift operators
  * 	or mask may be applied to extend the functionaliy. As of now,
  * 	the variable length type supports shifting the byte string to
  * 	the right, eating up any number of octets and thus supporting
diff --git a/net/sched/sch_htb.c b/net/sched/sch_htb.c
index e1429a85091f..29b942ce9e82 100644
--- a/net/sched/sch_htb.c
+++ b/net/sched/sch_htb.c
@@ -183,7 +183,7 @@ static inline struct htb_class *htb_find(u32 handle, struct Qdisc *sch)
  * filters in qdisc and in inner nodes (if higher filter points to the inner
  * node). If we end up with classid MAJOR:0 we enqueue the skb into special
  * internal fifo (direct). These packets then go directly thru. If we still
- * have no valid leaf we try to use MAJOR:default leaf. It still unsuccessfull
+ * have no valid leaf we try to use MAJOR:default leaf. It still unsuccessful
  * then finish and return direct queue.
  */
 #define HTB_DIRECT ((struct htb_class *)-1L)
diff --git a/net/sched/sch_netem.c b/net/sched/sch_netem.c
index edbbf7ad6623..69c35f6cd13f 100644
--- a/net/sched/sch_netem.c
+++ b/net/sched/sch_netem.c
@@ -160,7 +160,7 @@ static bool loss_4state(struct netem_sched_data *q)
 	u32 rnd = net_random();
 
 	/*
-	 * Makes a comparision between rnd and the transition
+	 * Makes a comparison between rnd and the transition
 	 * probabilities outgoing from the current state, then decides the
 	 * next state and if the next packet has to be transmitted or lost.
 	 * The four states correspond to:
@@ -212,9 +212,9 @@ static bool loss_4state(struct netem_sched_data *q)
  * Generates losses according to the Gilbert-Elliot loss model or
  * its special cases  (Gilbert or Simple Gilbert)
  *
- * Makes a comparision between random number and the transition
+ * Makes a comparison between random number and the transition
  * probabilities outgoing from the current state, then decides the
- * next state. A second random number is extracted and the comparision
+ * next state. A second random number is extracted and the comparison
  * with the loss probability of the current state decides if the next
  * packet will be transmitted or lost.
  */
diff --git a/net/sctp/associola.c b/net/sctp/associola.c
index 6b04287913cd..0698cad61763 100644
--- a/net/sctp/associola.c
+++ b/net/sctp/associola.c
@@ -1593,7 +1593,7 @@ void sctp_assoc_clean_asconf_ack_cache(const struct sctp_association *asoc)
 	struct sctp_chunk *ack;
 	struct sctp_chunk *tmp;
 
-	/* We can remove all the entries from the queue upto
+	/* We can remove all the entries from the queue up to
 	 * the "Peer-Sequence-Number".
 	 */
 	list_for_each_entry_safe(ack, tmp, &asoc->asconf_ack_list,
diff --git a/net/sctp/auth.c b/net/sctp/auth.c
index ddbbf7c81fa1..865e68fef21c 100644
--- a/net/sctp/auth.c
+++ b/net/sctp/auth.c
@@ -113,7 +113,7 @@ struct sctp_shared_key *sctp_auth_shkey_create(__u16 key_id, gfp_t gfp)
 	return new;
 }
 
-/* Free the shared key stucture */
+/* Free the shared key structure */
 static void sctp_auth_shkey_free(struct sctp_shared_key *sh_key)
 {
 	BUG_ON(!list_empty(&sh_key->key_list));
@@ -122,7 +122,7 @@ static void sctp_auth_shkey_free(struct sctp_shared_key *sh_key)
 	kfree(sh_key);
 }
 
-/* Destory the entire key list.  This is done during the
+/* Destroy the entire key list.  This is done during the
  * associon and endpoint free process.
  */
 void sctp_auth_destroy_keys(struct list_head *keys)
@@ -324,7 +324,7 @@ static struct sctp_auth_bytes *sctp_auth_asoc_create_secret(
 	if (!peer_key_vector || !local_key_vector)
 		goto out;
 
-	/* Figure out the order in wich the key_vectors will be
+	/* Figure out the order in which the key_vectors will be
 	 * added to the endpoint shared key.
 	 * SCTP-AUTH, Section 6.1:
 	 *   This is performed by selecting the numerically smaller key
diff --git a/net/sctp/input.c b/net/sctp/input.c
index 826661be73e7..5436c6921167 100644
--- a/net/sctp/input.c
+++ b/net/sctp/input.c
@@ -1034,7 +1034,7 @@ static struct sctp_association *__sctp_rcv_asconf_lookup(
 *    association.
 *
 * This means that any chunks that can help us identify the association need
-* to be looked at to find this assocation.
+* to be looked at to find this association.
 */
 static struct sctp_association *__sctp_rcv_walk_lookup(struct sk_buff *skb,
 				      const union sctp_addr *laddr,
diff --git a/net/sctp/output.c b/net/sctp/output.c
index 60600d337a3a..b4f3cf06d8da 100644
--- a/net/sctp/output.c
+++ b/net/sctp/output.c
@@ -510,7 +510,7 @@ int sctp_packet_transmit(struct sctp_packet *packet)
 		sh->checksum = sctp_end_cksum(crc32);
 	} else {
 		if (dst->dev->features & NETIF_F_SCTP_CSUM) {
-			/* no need to seed psuedo checksum for SCTP */
+			/* no need to seed pseudo checksum for SCTP */
 			nskb->ip_summed = CHECKSUM_PARTIAL;
 			nskb->csum_start = (skb_transport_header(nskb) -
 			                    nskb->head);
diff --git a/net/sctp/outqueue.c b/net/sctp/outqueue.c
index 26dc005113a0..bf92a5b68f8b 100644
--- a/net/sctp/outqueue.c
+++ b/net/sctp/outqueue.c
@@ -177,13 +177,13 @@ static inline int sctp_cacc_skip_3_2(struct sctp_transport *primary, __u32 tsn)
  * 3) If the missing report count for TSN t is to be
  * incremented according to [RFC2960] and
  * [SCTP_STEWART-2002], and CHANGEOVER_ACTIVE is set,
- * then the sender MUST futher execute steps 3.1 and
+ * then the sender MUST further execute steps 3.1 and
  * 3.2 to determine if the missing report count for
  * TSN t SHOULD NOT be incremented.
  *
  * 3.3) If 3.1 and 3.2 do not dictate that the missing
  * report count for t should not be incremented, then
- * the sender SOULD increment missing report count for
+ * the sender SHOULD increment missing report count for
  * t (according to [RFC2960] and [SCTP_STEWART_2002]).
  */
 static inline int sctp_cacc_skip(struct sctp_transport *primary,
@@ -843,7 +843,7 @@ static int sctp_outq_flush(struct sctp_outq *q, int rtx_timeout)
 		case SCTP_CID_ECN_CWR:
 		case SCTP_CID_ASCONF_ACK:
 			one_packet = 1;
-			/* Fall throught */
+			/* Fall through */
 
 		case SCTP_CID_SACK:
 		case SCTP_CID_HEARTBEAT:
diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c
index 152976ec0b74..d5bf91d04f63 100644
--- a/net/sctp/protocol.c
+++ b/net/sctp/protocol.c
@@ -1205,7 +1205,7 @@ SCTP_STATIC __init int sctp_init(void)
 		if ((sctp_assoc_hashsize > (64 * 1024)) && order > 0)
 			continue;
 		sctp_assoc_hashtable = (struct sctp_hashbucket *)
-					__get_free_pages(GFP_ATOMIC, order);
+			__get_free_pages(GFP_ATOMIC|__GFP_NOWARN, order);
 	} while (!sctp_assoc_hashtable && --order > 0);
 	if (!sctp_assoc_hashtable) {
 		pr_err("Failed association hash alloc\n");
@@ -1238,7 +1238,7 @@ SCTP_STATIC __init int sctp_init(void)
 		if ((sctp_port_hashsize > (64 * 1024)) && order > 0)
 			continue;
 		sctp_port_hashtable = (struct sctp_bind_hashbucket *)
-					__get_free_pages(GFP_ATOMIC, order);
+			__get_free_pages(GFP_ATOMIC|__GFP_NOWARN, order);
 	} while (!sctp_port_hashtable && --order > 0);
 	if (!sctp_port_hashtable) {
 		pr_err("Failed bind hash alloc\n");
diff --git a/net/sctp/sm_make_chunk.c b/net/sctp/sm_make_chunk.c
index de98665db524..b3434cc7d0cf 100644
--- a/net/sctp/sm_make_chunk.c
+++ b/net/sctp/sm_make_chunk.c
@@ -3106,10 +3106,10 @@ struct sctp_chunk *sctp_process_asconf(struct sctp_association *asoc,
 
 	/* create an ASCONF_ACK chunk.
 	 * Based on the definitions of parameters, we know that the size of
-	 * ASCONF_ACK parameters are less than or equal to the twice of ASCONF
+	 * ASCONF_ACK parameters are less than or equal to the fourfold of ASCONF
 	 * parameters.
 	 */
-	asconf_ack = sctp_make_asconf_ack(asoc, serial, chunk_len * 2);
+	asconf_ack = sctp_make_asconf_ack(asoc, serial, chunk_len * 4);
 	if (!asconf_ack)
 		goto done;
 
diff --git a/net/sctp/sm_sideeffect.c b/net/sctp/sm_sideeffect.c
index b21b218d564f..5f86ee4b54c1 100644
--- a/net/sctp/sm_sideeffect.c
+++ b/net/sctp/sm_sideeffect.c
@@ -482,7 +482,7 @@ static void sctp_do_8_2_transport_strike(struct sctp_association *asoc,
 	 * If the timer was a heartbeat, we only increment error counts
 	 * when we already have an outstanding HEARTBEAT that has not
 	 * been acknowledged.
-	 * Additionaly, some tranport states inhibit error increments.
+	 * Additionally, some tranport states inhibit error increments.
 	 */
 	if (!is_hb) {
 		asoc->overall_error_count++;
diff --git a/net/sctp/sm_statefuns.c b/net/sctp/sm_statefuns.c
index 4b4eb7c96bbd..76792083c379 100644
--- a/net/sctp/sm_statefuns.c
+++ b/net/sctp/sm_statefuns.c
@@ -551,7 +551,7 @@ sctp_disposition_t sctp_sf_do_5_1C_ack(const struct sctp_endpoint *ep,
 		 *
 		 * This means that if we only want to abort associations
 		 * in an authenticated way (i.e AUTH+ABORT), then we
-		 * can't destroy this association just becuase the packet
+		 * can't destroy this association just because the packet
 		 * was malformed.
 		 */
 		if (sctp_auth_recv_cid(SCTP_CID_ABORT, asoc))
@@ -1546,7 +1546,7 @@ cleanup:
 }
 
 /*
- * Handle simultanous INIT.
+ * Handle simultaneous INIT.
  * This means we started an INIT and then we got an INIT request from
  * our peer.
  *
@@ -2079,7 +2079,7 @@ sctp_disposition_t sctp_sf_shutdown_pending_abort(
 	 * RFC 2960, Section 3.3.7
 	 *    If an endpoint receives an ABORT with a format error or for an
 	 *    association that doesn't exist, it MUST silently discard it.
-	 * Becasue the length is "invalid", we can't really discard just
+	 * Because the length is "invalid", we can't really discard just
 	 * as we do not know its true length.  So, to be safe, discard the
 	 * packet.
 	 */
@@ -2120,7 +2120,7 @@ sctp_disposition_t sctp_sf_shutdown_sent_abort(const struct sctp_endpoint *ep,
 	 * RFC 2960, Section 3.3.7
 	 *    If an endpoint receives an ABORT with a format error or for an
 	 *    association that doesn't exist, it MUST silently discard it.
-	 * Becasue the length is "invalid", we can't really discard just
+	 * Because the length is "invalid", we can't really discard just
 	 * as we do not know its true length.  So, to be safe, discard the
 	 * packet.
 	 */
@@ -2381,7 +2381,7 @@ sctp_disposition_t sctp_sf_do_9_1_abort(const struct sctp_endpoint *ep,
 	 * RFC 2960, Section 3.3.7
 	 *    If an endpoint receives an ABORT with a format error or for an
 	 *    association that doesn't exist, it MUST silently discard it.
-	 * Becasue the length is "invalid", we can't really discard just
+	 * Because the length is "invalid", we can't really discard just
 	 * as we do not know its true length.  So, to be safe, discard the
 	 * packet.
 	 */
@@ -2448,7 +2448,7 @@ sctp_disposition_t sctp_sf_cookie_wait_abort(const struct sctp_endpoint *ep,
 	 * RFC 2960, Section 3.3.7
 	 *    If an endpoint receives an ABORT with a format error or for an
 	 *    association that doesn't exist, it MUST silently discard it.
-	 * Becasue the length is "invalid", we can't really discard just
+	 * Because the length is "invalid", we can't really discard just
 	 * as we do not know its true length.  So, to be safe, discard the
 	 * packet.
 	 */
@@ -3855,7 +3855,7 @@ gen_shutdown:
 }
 
 /*
- * SCTP-AUTH Section 6.3 Receving authenticated chukns
+ * SCTP-AUTH Section 6.3 Receiving authenticated chukns
  *
  *    The receiver MUST use the HMAC algorithm indicated in the HMAC
  *    Identifier field.  If this algorithm was not specified by the
@@ -4231,7 +4231,7 @@ static sctp_disposition_t sctp_sf_abort_violation(
 	 *
 	 * This means that if we only want to abort associations
 	 * in an authenticated way (i.e AUTH+ABORT), then we
-	 * can't destroy this association just becuase the packet
+	 * can't destroy this association just because the packet
 	 * was malformed.
 	 */
 	if (sctp_auth_recv_cid(SCTP_CID_ABORT, asoc))
@@ -4402,9 +4402,9 @@ static sctp_disposition_t sctp_sf_violation_ctsn(
 }
 
 /* Handle protocol violation of an invalid chunk bundling.  For example,
- * when we have an association and we recieve bundled INIT-ACK, or
+ * when we have an association and we receive bundled INIT-ACK, or
  * SHUDOWN-COMPLETE, our peer is clearly violationg the "MUST NOT bundle"
- * statement from the specs.  Additinally, there might be an attacker
+ * statement from the specs.  Additionally, there might be an attacker
  * on the path and we may not want to continue this communication.
  */
 static sctp_disposition_t sctp_sf_violation_chunk(
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 3951a10605bc..deb82e35a107 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -1193,7 +1193,7 @@ out_free:
  * an endpoint that is multi-homed.  Much like sctp_bindx() this call
  * allows a caller to specify multiple addresses at which a peer can be
  * reached.  The way the SCTP stack uses the list of addresses to set up
- * the association is implementation dependant.  This function only
+ * the association is implementation dependent.  This function only
  * specifies that the stack will try to make use of all the addresses in
  * the list when needed.
  *
diff --git a/net/sctp/ulpevent.c b/net/sctp/ulpevent.c
index aa72e89c3ee1..dff27d5e22fd 100644
--- a/net/sctp/ulpevent.c
+++ b/net/sctp/ulpevent.c
@@ -554,7 +554,7 @@ struct sctp_ulpevent *sctp_ulpevent_make_send_failed(
 	memcpy(&ssf->ssf_info, &chunk->sinfo, sizeof(struct sctp_sndrcvinfo));
 
 	/* Per TSVWG discussion with Randy. Allow the application to
-	 * ressemble a fragmented message.
+	 * resemble a fragmented message.
 	 */
 	ssf->ssf_info.sinfo_flags = chunk->chunk_hdr->flags;
 
diff --git a/net/sctp/ulpqueue.c b/net/sctp/ulpqueue.c
index 17678189d054..f2d1de7f2ffb 100644
--- a/net/sctp/ulpqueue.c
+++ b/net/sctp/ulpqueue.c
@@ -240,7 +240,7 @@ int sctp_ulpq_tail_event(struct sctp_ulpq *ulpq, struct sctp_ulpevent *event)
 		} else {
 			/*
 			 * If fragment interleave is enabled, we
-			 * can queue this to the recieve queue instead
+			 * can queue this to the receive queue instead
 			 * of the lobby.
 			 */
 			if (sctp_sk(sk)->frag_interleave)
diff --git a/net/socket.c b/net/socket.c
index 5212447c86e7..310d16b1b3c9 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -2986,7 +2986,7 @@ out:
 
 /* Since old style bridge ioctl's endup using SIOCDEVPRIVATE
  * for some operations; this forces use of the newer bridge-utils that
- * use compatiable ioctls
+ * use compatible ioctls
  */
 static int old_bridge_ioctl(compat_ulong_t __user *argp)
 {
diff --git a/net/sunrpc/auth_gss/gss_mech_switch.c b/net/sunrpc/auth_gss/gss_mech_switch.c
index 8b4061049d76..e3c36a274412 100644
--- a/net/sunrpc/auth_gss/gss_mech_switch.c
+++ b/net/sunrpc/auth_gss/gss_mech_switch.c
@@ -160,6 +160,28 @@ gss_mech_get_by_name(const char *name)
 
 EXPORT_SYMBOL_GPL(gss_mech_get_by_name);
 
+struct gss_api_mech *
+gss_mech_get_by_OID(struct xdr_netobj *obj)
+{
+	struct gss_api_mech	*pos, *gm = NULL;
+
+	spin_lock(&registered_mechs_lock);
+	list_for_each_entry(pos, &registered_mechs, gm_list) {
+		if (obj->len == pos->gm_oid.len) {
+			if (0 == memcmp(obj->data, pos->gm_oid.data, obj->len)) {
+				if (try_module_get(pos->gm_owner))
+					gm = pos;
+				break;
+			}
+		}
+	}
+	spin_unlock(&registered_mechs_lock);
+	return gm;
+
+}
+
+EXPORT_SYMBOL_GPL(gss_mech_get_by_OID);
+
 static inline int
 mech_supports_pseudoflavor(struct gss_api_mech *gm, u32 pseudoflavor)
 {
@@ -193,6 +215,22 @@ gss_mech_get_by_pseudoflavor(u32 pseudoflavor)
 
 EXPORT_SYMBOL_GPL(gss_mech_get_by_pseudoflavor);
 
+int gss_mech_list_pseudoflavors(rpc_authflavor_t *array_ptr)
+{
+	struct gss_api_mech *pos = NULL;
+	int i = 0;
+
+	spin_lock(&registered_mechs_lock);
+	list_for_each_entry(pos, &registered_mechs, gm_list) {
+		array_ptr[i] = pos->gm_pfs->pseudoflavor;
+		i++;
+	}
+	spin_unlock(&registered_mechs_lock);
+	return i;
+}
+
+EXPORT_SYMBOL_GPL(gss_mech_list_pseudoflavors);
+
 u32
 gss_svc_to_pseudoflavor(struct gss_api_mech *gm, u32 service)
 {
diff --git a/net/sunrpc/auth_gss/svcauth_gss.c b/net/sunrpc/auth_gss/svcauth_gss.c
index bcdae78fdfc6..8d0f7d3c71c8 100644
--- a/net/sunrpc/auth_gss/svcauth_gss.c
+++ b/net/sunrpc/auth_gss/svcauth_gss.c
@@ -1101,7 +1101,7 @@ svcauth_gss_accept(struct svc_rqst *rqstp, __be32 *authp)
 
 	/* credential is:
 	 *   version(==1), proc(0,1,2,3), seq, service (1,2,3), handle
-	 * at least 5 u32s, and is preceeded by length, so that makes 6.
+	 * at least 5 u32s, and is preceded by length, so that makes 6.
 	 */
 
 	if (argv->iov_len < 5 * 4)
diff --git a/net/sunrpc/sched.c b/net/sunrpc/sched.c
index ffb687671da0..6b43ee7221d5 100644
--- a/net/sunrpc/sched.c
+++ b/net/sunrpc/sched.c
@@ -860,8 +860,10 @@ static void rpc_release_resources_task(struct rpc_task *task)
 {
 	if (task->tk_rqstp)
 		xprt_release(task);
-	if (task->tk_msg.rpc_cred)
+	if (task->tk_msg.rpc_cred) {
 		put_rpccred(task->tk_msg.rpc_cred);
+		task->tk_msg.rpc_cred = NULL;
+	}
 	rpc_task_release_client(task);
 }
 
diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
index be96d429b475..bf005d3c65ef 100644
--- a/net/sunrpc/xprtsock.c
+++ b/net/sunrpc/xprtsock.c
@@ -504,7 +504,7 @@ static int xs_nospace(struct rpc_task *task)
  *   EAGAIN:	The socket was blocked, please call again later to
  *		complete the request
  * ENOTCONN:	Caller needs to invoke connect logic then call again
- *    other:	Some other error occured, the request was not sent
+ *    other:	Some other error occurred, the request was not sent
  */
 static int xs_udp_send_request(struct rpc_task *task)
 {
@@ -590,7 +590,7 @@ static inline void xs_encode_tcp_record_marker(struct xdr_buf *buf)
  *   EAGAIN:	The socket was blocked, please call again later to
  *		complete the request
  * ENOTCONN:	Caller needs to invoke connect logic then call again
- *    other:	Some other error occured, the request was not sent
+ *    other:	Some other error occurred, the request was not sent
  *
  * XXX: In the case of soft timeouts, should we eventually give up
  *	if sendmsg is not able to make progress?
@@ -710,6 +710,8 @@ static void xs_reset_transport(struct sock_xprt *transport)
 	if (sk == NULL)
 		return;
 
+	transport->srcport = 0;
+
 	write_lock_bh(&sk->sk_callback_lock);
 	transport->inet = NULL;
 	transport->sock = NULL;
diff --git a/net/tipc/link.c b/net/tipc/link.c
index 43639ff1cbec..ebf338f7b14e 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -2471,7 +2471,7 @@ exit:
  * A pending message being re-assembled must store certain values
  * to handle subsequent fragments correctly. The following functions
  * help storing these values in unused, available fields in the
- * pending message. This makes dynamic memory allocation unecessary.
+ * pending message. This makes dynamic memory allocation unnecessary.
  */
 
 static void set_long_msg_seqno(struct sk_buff *buf, u32 seqno)
diff --git a/net/tipc/name_distr.c b/net/tipc/name_distr.c
index c9fa6dfcf287..80025a1b3bfd 100644
--- a/net/tipc/name_distr.c
+++ b/net/tipc/name_distr.c
@@ -160,7 +160,7 @@ void tipc_named_withdraw(struct publication *publ)
 
 	buf = named_prepare_buf(WITHDRAWAL, ITEM_SIZE, 0);
 	if (!buf) {
-		warn("Withdrawl distribution failure\n");
+		warn("Withdrawal distribution failure\n");
 		return;
 	}
 
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index 1663e1a2efdd..3a43a8304768 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -207,7 +207,7 @@ static int unix_mkname(struct sockaddr_un *sunaddr, int len, unsigned *hashp)
 		/*
 		 * This may look like an off by one error but it is a bit more
 		 * subtle. 108 is the longest valid AF_UNIX path for a binding.
-		 * sun_path[108] doesnt as such exist.  However in kernel space
+		 * sun_path[108] doesn't as such exist.  However in kernel space
 		 * we are guaranteed that it is a valid memory location in our
 		 * kernel address buffer.
 		 */
diff --git a/net/wanrouter/wanproc.c b/net/wanrouter/wanproc.c
index 11f25c7a7a05..f346395314ba 100644
--- a/net/wanrouter/wanproc.c
+++ b/net/wanrouter/wanproc.c
@@ -51,7 +51,7 @@
 
 /*
  *	Structures for interfacing with the /proc filesystem.
- *	Router creates its own directory /proc/net/router with the folowing
+ *	Router creates its own directory /proc/net/router with the following
  *	entries:
  *	config		device configuration
  *	status		global device statistics
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index 3332d5bce317..ab801a1097b2 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -809,7 +809,7 @@ static void handle_channel(struct wiphy *wiphy,
 	if (r) {
 		/*
 		 * We will disable all channels that do not match our
-		 * recieved regulatory rule unless the hint is coming
+		 * received regulatory rule unless the hint is coming
 		 * from a Country IE and the Country IE had no information
 		 * about a band. The IEEE 802.11 spec allows for an AP
 		 * to send only a subset of the regulatory rules allowed,
@@ -838,7 +838,7 @@ static void handle_channel(struct wiphy *wiphy,
 	    request_wiphy && request_wiphy == wiphy &&
 	    request_wiphy->flags & WIPHY_FLAG_STRICT_REGULATORY) {
 		/*
-		 * This gaurantees the driver's requested regulatory domain
+		 * This guarantees the driver's requested regulatory domain
 		 * will always be used as a base for further regulatory
 		 * settings
 		 */
diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index ea427f418f64..fbf6f33ae4d0 100644
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -124,6 +124,15 @@ void cfg80211_bss_age(struct cfg80211_registered_device *dev,
 }
 
 /* must hold dev->bss_lock! */
+static void __cfg80211_unlink_bss(struct cfg80211_registered_device *dev,
+				  struct cfg80211_internal_bss *bss)
+{
+	list_del_init(&bss->list);
+	rb_erase(&bss->rbn, &dev->bss_tree);
+	kref_put(&bss->ref, bss_release);
+}
+
+/* must hold dev->bss_lock! */
 void cfg80211_bss_expire(struct cfg80211_registered_device *dev)
 {
 	struct cfg80211_internal_bss *bss, *tmp;
@@ -134,9 +143,7 @@ void cfg80211_bss_expire(struct cfg80211_registered_device *dev)
 			continue;
 		if (!time_after(jiffies, bss->ts + IEEE80211_SCAN_RESULT_EXPIRE))
 			continue;
-		list_del(&bss->list);
-		rb_erase(&bss->rbn, &dev->bss_tree);
-		kref_put(&bss->ref, bss_release);
+		__cfg80211_unlink_bss(dev, bss);
 		expired = true;
 	}
 
@@ -585,16 +592,23 @@ cfg80211_inform_bss_frame(struct wiphy *wiphy,
 	struct cfg80211_internal_bss *res;
 	size_t ielen = len - offsetof(struct ieee80211_mgmt,
 				      u.probe_resp.variable);
-	size_t privsz = wiphy->bss_priv_size;
+	size_t privsz;
+
+	if (WARN_ON(!mgmt))
+		return NULL;
+
+	if (WARN_ON(!wiphy))
+		return NULL;
 
 	if (WARN_ON(wiphy->signal_type == CFG80211_SIGNAL_TYPE_UNSPEC &&
 	            (signal < 0 || signal > 100)))
 		return NULL;
 
-	if (WARN_ON(!mgmt || !wiphy ||
-		    len < offsetof(struct ieee80211_mgmt, u.probe_resp.variable)))
+	if (WARN_ON(len < offsetof(struct ieee80211_mgmt, u.probe_resp.variable)))
 		return NULL;
 
+	privsz = wiphy->bss_priv_size;
+
 	res = kzalloc(sizeof(*res) + privsz + ielen, gfp);
 	if (!res)
 		return NULL;
@@ -662,11 +676,8 @@ void cfg80211_unlink_bss(struct wiphy *wiphy, struct cfg80211_bss *pub)
 
 	spin_lock_bh(&dev->bss_lock);
 	if (!list_empty(&bss->list)) {
-		list_del_init(&bss->list);
+		__cfg80211_unlink_bss(dev, bss);
 		dev->bss_generation++;
-		rb_erase(&bss->rbn, &dev->bss_tree);
-
-		kref_put(&bss->ref, bss_release);
 	}
 	spin_unlock_bh(&dev->bss_lock);
 }
diff --git a/net/x25/x25_facilities.c b/net/x25/x25_facilities.c
index 406207515b5e..f77e4e75f914 100644
--- a/net/x25/x25_facilities.c
+++ b/net/x25/x25_facilities.c
@@ -31,7 +31,7 @@
  * x25_parse_facilities - Parse facilities from skb into the facilities structs
  *
  * @skb: sk_buff to parse
- * @facilities: Regular facilites, updated as facilities are found
+ * @facilities: Regular facilities, updated as facilities are found
  * @dte_facs: ITU DTE facilities, updated as DTE facilities are found
  * @vc_fac_mask: mask is updated with all facilities found
  *
diff --git a/net/x25/x25_forward.c b/net/x25/x25_forward.c
index 25a810793968..c541b622ae16 100644
--- a/net/x25/x25_forward.c
+++ b/net/x25/x25_forward.c
@@ -31,7 +31,7 @@ int x25_forward_call(struct x25_address *dest_addr, struct x25_neigh *from,
 		goto out_no_route;
 
 	if ((neigh_new = x25_get_neigh(rt->dev)) == NULL) {
-		/* This shouldnt happen, if it occurs somehow
+		/* This shouldn't happen, if it occurs somehow
 		 * do something sensible
 		 */
 		goto out_put_route;
@@ -45,7 +45,7 @@ int x25_forward_call(struct x25_address *dest_addr, struct x25_neigh *from,
 	}
 
 	/* Remote end sending a call request on an already
-	 * established LCI? It shouldnt happen, just in case..
+	 * established LCI? It shouldn't happen, just in case..
 	 */
 	read_lock_bh(&x25_forward_list_lock);
 	list_for_each(entry, &x25_forward_list) {
diff --git a/net/xfrm/xfrm_input.c b/net/xfrm/xfrm_input.c
index 872065ca7f8c..a026b0ef2443 100644
--- a/net/xfrm/xfrm_input.c
+++ b/net/xfrm/xfrm_input.c
@@ -173,7 +173,7 @@ int xfrm_input(struct sk_buff *skb, int nexthdr, __be32 spi, int encap_type)
 			goto drop_unlock;
 		}
 
-		if (x->props.replay_window && x->repl->check(x, skb, seq)) {
+		if (x->repl->check(x, skb, seq)) {
 			XFRM_INC_STATS(net, LINUX_MIB_XFRMINSTATESEQERROR);
 			goto drop_unlock;
 		}
@@ -190,6 +190,8 @@ int xfrm_input(struct sk_buff *skb, int nexthdr, __be32 spi, int encap_type)
 		XFRM_SKB_CB(skb)->seq.input.low = seq;
 		XFRM_SKB_CB(skb)->seq.input.hi = seq_hi;
 
+		skb_dst_force(skb);
+
 		nexthdr = x->type->input(x, skb);
 
 		if (nexthdr == -EINPROGRESS)
diff --git a/net/xfrm/xfrm_output.c b/net/xfrm/xfrm_output.c
index 1aba03f449cc..47bacd8c0250 100644
--- a/net/xfrm/xfrm_output.c
+++ b/net/xfrm/xfrm_output.c
@@ -78,6 +78,8 @@ static int xfrm_output_one(struct sk_buff *skb, int err)
 
 		spin_unlock_bh(&x->lock);
 
+		skb_dst_force(skb);
+
 		err = x->type->output(x, skb);
 		if (err == -EINPROGRESS)
 			goto out_exit;
@@ -94,7 +96,7 @@ resume:
 			err = -EHOSTUNREACH;
 			goto error_nolock;
 		}
-		skb_dst_set(skb, dst_clone(dst));
+		skb_dst_set(skb, dst);
 		x = dst->xfrm;
 	} while (x && !(x->outer_mode->flags & XFRM_MODE_FLAG_TUNNEL));
 
diff --git a/net/xfrm/xfrm_replay.c b/net/xfrm/xfrm_replay.c
index 2f5be5b15740..f218385950ca 100644
--- a/net/xfrm/xfrm_replay.c
+++ b/net/xfrm/xfrm_replay.c
@@ -118,6 +118,9 @@ static int xfrm_replay_check(struct xfrm_state *x,
 	u32 diff;
 	u32 seq = ntohl(net_seq);
 
+	if (!x->props.replay_window)
+		return 0;
+
 	if (unlikely(seq == 0))
 		goto err;
 
@@ -193,9 +196,14 @@ static int xfrm_replay_check_bmp(struct xfrm_state *x,
 {
 	unsigned int bitnr, nr;
 	struct xfrm_replay_state_esn *replay_esn = x->replay_esn;
+	u32 pos;
 	u32 seq = ntohl(net_seq);
 	u32 diff =  replay_esn->seq - seq;
-	u32 pos = (replay_esn->seq - 1) % replay_esn->replay_window;
+
+	if (!replay_esn->replay_window)
+		return 0;
+
+	pos = (replay_esn->seq - 1) % replay_esn->replay_window;
 
 	if (unlikely(seq == 0))
 		goto err;
@@ -373,12 +381,17 @@ static int xfrm_replay_check_esn(struct xfrm_state *x,
 	unsigned int bitnr, nr;
 	u32 diff;
 	struct xfrm_replay_state_esn *replay_esn = x->replay_esn;
+	u32 pos;
 	u32 seq = ntohl(net_seq);
-	u32 pos = (replay_esn->seq - 1) % replay_esn->replay_window;
 	u32 wsize = replay_esn->replay_window;
 	u32 top = replay_esn->seq;
 	u32 bottom = top - wsize + 1;
 
+	if (!wsize)
+		return 0;
+
+	pos = (replay_esn->seq - 1) % replay_esn->replay_window;
+
 	if (unlikely(seq == 0 && replay_esn->seq_hi == 0 &&
 		     (replay_esn->seq < replay_esn->replay_window - 1)))
 		goto err;
diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c
index f83a3d1da81b..dd78536d40de 100644
--- a/net/xfrm/xfrm_state.c
+++ b/net/xfrm/xfrm_state.c
@@ -1181,6 +1181,12 @@ static struct xfrm_state *xfrm_state_clone(struct xfrm_state *orig, int *errp)
 			goto error;
 	}
 
+	if (orig->replay_esn) {
+		err = xfrm_replay_clone(x, orig);
+		if (err)
+			goto error;
+	}
+
 	memcpy(&x->mark, &orig->mark, sizeof(x->mark));
 
 	err = xfrm_init_state(x);
diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
index fc152d28753c..5d1d60d3ca83 100644
--- a/net/xfrm/xfrm_user.c
+++ b/net/xfrm/xfrm_user.c
@@ -127,6 +127,9 @@ static inline int verify_replay(struct xfrm_usersa_info *p,
 	if (!rt)
 		return 0;
 
+	if (p->id.proto != IPPROTO_ESP)
+		return -EINVAL;
+
 	if (p->replay_window != 0)
 		return -EINVAL;
 
@@ -360,6 +363,23 @@ static int attach_aead(struct xfrm_algo_aead **algpp, u8 *props,
 	return 0;
 }
 
+static inline int xfrm_replay_verify_len(struct xfrm_replay_state_esn *replay_esn,
+					 struct nlattr *rp)
+{
+	struct xfrm_replay_state_esn *up;
+
+	if (!replay_esn || !rp)
+		return 0;
+
+	up = nla_data(rp);
+
+	if (xfrm_replay_state_esn_len(replay_esn) !=
+			xfrm_replay_state_esn_len(up))
+		return -EINVAL;
+
+	return 0;
+}
+
 static int xfrm_alloc_replay_state_esn(struct xfrm_replay_state_esn **replay_esn,
 				       struct xfrm_replay_state_esn **preplay_esn,
 				       struct nlattr *rta)
@@ -874,7 +894,7 @@ static int build_spdinfo(struct sk_buff *skb, struct net *net,
 	u32 *f;
 
 	nlh = nlmsg_put(skb, pid, seq, XFRM_MSG_NEWSPDINFO, sizeof(u32), 0);
-	if (nlh == NULL) /* shouldnt really happen ... */
+	if (nlh == NULL) /* shouldn't really happen ... */
 		return -EMSGSIZE;
 
 	f = nlmsg_data(nlh);
@@ -934,7 +954,7 @@ static int build_sadinfo(struct sk_buff *skb, struct net *net,
 	u32 *f;
 
 	nlh = nlmsg_put(skb, pid, seq, XFRM_MSG_NEWSADINFO, sizeof(u32), 0);
-	if (nlh == NULL) /* shouldnt really happen ... */
+	if (nlh == NULL) /* shouldn't really happen ... */
 		return -EMSGSIZE;
 
 	f = nlmsg_data(nlh);
@@ -1341,7 +1361,7 @@ static int xfrm_add_policy(struct sk_buff *skb, struct nlmsghdr *nlh,
 	if (!xp)
 		return err;
 
-	/* shouldnt excl be based on nlh flags??
+	/* shouldn't excl be based on nlh flags??
 	 * Aha! this is anti-netlink really i.e  more pfkey derived
 	 * in netlink excl is a flag and you wouldnt need
 	 * a type XFRM_MSG_UPDPOLICY - JHS */
@@ -1766,6 +1786,10 @@ static int xfrm_new_ae(struct sk_buff *skb, struct nlmsghdr *nlh,
 	if (x->km.state != XFRM_STATE_VALID)
 		goto out;
 
+	err = xfrm_replay_verify_len(x->replay_esn, rp);
+	if (err)
+		goto out;
+
 	spin_lock_bh(&x->lock);
 	xfrm_update_ae_params(x, attrs);
 	spin_unlock_bh(&x->lock);
diff --git a/samples/Kconfig b/samples/Kconfig
index e03cf0e374d7..41063e7592d2 100644
--- a/samples/Kconfig
+++ b/samples/Kconfig
@@ -55,7 +55,7 @@ config SAMPLE_KFIFO
 	  If in doubt, say "N" here.
 
 config SAMPLE_KDB
-	tristate "Build kdb command exmaple -- loadable modules only"
+	tristate "Build kdb command example -- loadable modules only"
 	depends on KGDB_KDB && m
 	help
 	  Build an example of how to dynamically add the hello
diff --git a/samples/hw_breakpoint/data_breakpoint.c b/samples/hw_breakpoint/data_breakpoint.c
index bd0f337afcab..063653955f9f 100644
--- a/samples/hw_breakpoint/data_breakpoint.c
+++ b/samples/hw_breakpoint/data_breakpoint.c
@@ -19,7 +19,7 @@
  *
  * This file is a kernel module that places a breakpoint over ksym_name kernel
  * variable using Hardware Breakpoint register. The corresponding handler which
- * prints a backtrace is invoked everytime a write operation is performed on
+ * prints a backtrace is invoked every time a write operation is performed on
  * that variable.
  *
  * Copyright (C) IBM Corporation, 2009
diff --git a/scripts/Makefile.modpost b/scripts/Makefile.modpost
index 7d22056582c1..56dfafc73c1a 100644
--- a/scripts/Makefile.modpost
+++ b/scripts/Makefile.modpost
@@ -35,14 +35,14 @@
 # KBUILD_MODPOST_WARN can be set to avoid error out in case of undefined
 # symbols in the final module linking stage
 # KBUILD_MODPOST_NOFINAL can be set to skip the final link of modules.
-# This is solely usefull to speed up test compiles
+# This is solely useful to speed up test compiles
 PHONY := _modpost
 _modpost: __modpost
 
 include include/config/auto.conf
 include scripts/Kbuild.include
 
-# When building external modules load the Kbuild file to retreive EXTRA_SYMBOLS info
+# When building external modules load the Kbuild file to retrieve EXTRA_SYMBOLS info
 ifneq ($(KBUILD_EXTMOD),)
 
 # set src + obj - they may be used when building the .mod.c file
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 8f9e394298cd..d8670810db65 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -1946,13 +1946,13 @@ sub process {
 # printk should use KERN_* levels.  Note that follow on printk's on the
 # same line do not need a level, so we use the current block context
 # to try and find and validate the current printk.  In summary the current
-# printk includes all preceeding printk's which have no newline on the end.
+# printk includes all preceding printk's which have no newline on the end.
 # we assume the first bad printk is the one to report.
 		if ($line =~ /\bprintk\((?!KERN_)\s*"/) {
 			my $ok = 0;
 			for (my $ln = $linenr - 1; $ln >= $first_line; $ln--) {
 				#print "CHECK<$lines[$ln - 1]\n";
-				# we have a preceeding printk if it ends
+				# we have a preceding printk if it ends
 				# with "\n" ignore it, else it is to blame
 				if ($lines[$ln - 1] =~ m{\bprintk\(}) {
 					if ($rawlines[$ln - 1] !~ m{\\n"}) {
@@ -2044,7 +2044,7 @@ sub process {
 			for (my $n = 0; $n < $#elements; $n += 2) {
 				$off += length($elements[$n]);
 
-				# Pick up the preceeding and succeeding characters.
+				# Pick up the preceding and succeeding characters.
 				my $ca = substr($opline, 0, $off);
 				my $cc = '';
 				if (length($opline) >= ($off + length($elements[$n + 1]))) {
diff --git a/scripts/dtc/libfdt/libfdt.h b/scripts/dtc/libfdt/libfdt.h
index ce80e4fb41b2..ff6246f000ce 100644
--- a/scripts/dtc/libfdt/libfdt.h
+++ b/scripts/dtc/libfdt/libfdt.h
@@ -61,7 +61,7 @@
 #define FDT_ERR_NOTFOUND	1
 	/* FDT_ERR_NOTFOUND: The requested node or property does not exist */
 #define FDT_ERR_EXISTS		2
-	/* FDT_ERR_EXISTS: Attemped to create a node or property which
+	/* FDT_ERR_EXISTS: Attempted to create a node or property which
 	 * already exists */
 #define FDT_ERR_NOSPACE		3
 	/* FDT_ERR_NOSPACE: Operation needed to expand the device
diff --git a/scripts/dtc/livetree.c b/scripts/dtc/livetree.c
index c9209d5c999e..26d0e1e60c0c 100644
--- a/scripts/dtc/livetree.c
+++ b/scripts/dtc/livetree.c
@@ -155,7 +155,7 @@ struct node *merge_nodes(struct node *old_node, struct node *new_node)
 			}
 		}
 
-		/* if no collision occured, add child to the old node. */
+		/* if no collision occurred, add child to the old node. */
 		if (new_child)
 			add_child(old_node, new_child);
 	}
diff --git a/scripts/gen_initramfs_list.sh b/scripts/gen_initramfs_list.sh
index 55caecdad995..e12b1a7525cf 100644
--- a/scripts/gen_initramfs_list.sh
+++ b/scripts/gen_initramfs_list.sh
@@ -284,7 +284,7 @@ while [ $# -gt 0 ]; do
 done
 
 # If output_file is set we will generate cpio archive and compress it
-# we are carefull to delete tmp files
+# we are careful to delete tmp files
 if [ ! -z ${output_file} ]; then
 	if [ -z ${cpio_file} ]; then
 		cpio_tfile="$(mktemp ${TMPDIR:-/tmp}/cpiofile.XXXXXX)"
diff --git a/scripts/kernel-doc b/scripts/kernel-doc
index 9f85012acf0d..d793001929cf 100755
--- a/scripts/kernel-doc
+++ b/scripts/kernel-doc
@@ -1705,7 +1705,7 @@ sub push_parameter($$$) {
 
 	$param = xml_escape($param);
 
-	# strip spaces from $param so that it is one continous string
+	# strip spaces from $param so that it is one continuous string
 	# on @parameterlist;
 	# this fixes a problem where check_sections() cannot find
 	# a parameter like "addr[6 + 2]" because it actually appears
diff --git a/scripts/package/buildtar b/scripts/package/buildtar
index 83c9c04102f2..8a7b15598ea9 100644
--- a/scripts/package/buildtar
+++ b/scripts/package/buildtar
@@ -92,7 +92,7 @@ case "${ARCH}" in
 		echo "" >&2
 		echo '** ** **  WARNING  ** ** **' >&2
 		echo "" >&2
-		echo "Your architecture did not define any architecture-dependant files" >&2
+		echo "Your architecture did not define any architecture-dependent files" >&2
 		echo "to be placed into the tarball. Please add those to ${0} ..." >&2
 		echo "" >&2
 		sleep 5
diff --git a/scripts/rt-tester/rt-tester.py b/scripts/rt-tester/rt-tester.py
index 8c81d76959ee..34186cac1d2f 100644
--- a/scripts/rt-tester/rt-tester.py
+++ b/scripts/rt-tester/rt-tester.py
@@ -180,7 +180,7 @@ while 1:
                 for s in stat:
 		    s = s.strip()
                     if s.startswith(testop[0]):
-                        # Seperate status value
+                        # Separate status value
                         val = s[2:].strip()
                         query = analyse(val, testop, dat)
                         break
diff --git a/security/apparmor/match.c b/security/apparmor/match.c
index 5cb4dc1f6992..06d764ccbbe5 100644
--- a/security/apparmor/match.c
+++ b/security/apparmor/match.c
@@ -195,7 +195,7 @@ void aa_dfa_free_kref(struct kref *kref)
  *
  * Unpack a dfa that has been serialized.  To find information on the dfa
  * format look in Documentation/apparmor.txt
- * Assumes the dfa @blob stream has been aligned on a 8 byte boundry
+ * Assumes the dfa @blob stream has been aligned on a 8 byte boundary
  *
  * Returns: an unpacked dfa ready for matching or ERR_PTR on failure
  */
diff --git a/security/apparmor/policy_unpack.c b/security/apparmor/policy_unpack.c
index eb3700e9fd37..e33aaf7e5744 100644
--- a/security/apparmor/policy_unpack.c
+++ b/security/apparmor/policy_unpack.c
@@ -359,7 +359,7 @@ fail:
  * @e: serialized data extent information  (NOT NULL)
  * @profile: profile to add the accept table to (NOT NULL)
  *
- * Returns: 1 if table succesfully unpacked
+ * Returns: 1 if table successfully unpacked
  */
 static bool unpack_trans_table(struct aa_ext *e, struct aa_profile *profile)
 {
diff --git a/security/selinux/netlabel.c b/security/selinux/netlabel.c
index 1c2fc46544bf..c3bf3ed07b06 100644
--- a/security/selinux/netlabel.c
+++ b/security/selinux/netlabel.c
@@ -151,7 +151,7 @@ void selinux_netlbl_sk_security_free(struct sk_security_struct *sksec)
  *
  * Description:
  * Called when the NetLabel state of a sk_security_struct needs to be reset.
- * The caller is responsibile for all the NetLabel sk_security_struct locking.
+ * The caller is responsible for all the NetLabel sk_security_struct locking.
  *
  */
 void selinux_netlbl_sk_security_reset(struct sk_security_struct *sksec)
diff --git a/security/selinux/ss/services.c b/security/selinux/ss/services.c
index 3e7544d2a07b..6ef4af47dac4 100644
--- a/security/selinux/ss/services.c
+++ b/security/selinux/ss/services.c
@@ -213,7 +213,7 @@ static u16 map_class(u16 pol_value)
 			return i;
 	}
 
-	return pol_value;
+	return SECCLASS_NULL;
 }
 
 static void map_decision(u16 tclass, struct av_decision *avd,
@@ -2806,7 +2806,7 @@ int selinux_audit_rule_init(u32 field, u32 op, char *rulestr, void **vrule)
 	case AUDIT_SUBJ_CLR:
 	case AUDIT_OBJ_LEV_LOW:
 	case AUDIT_OBJ_LEV_HIGH:
-		/* we do not allow a range, indicated by the presense of '-' */
+		/* we do not allow a range, indicated by the presence of '-' */
 		if (strchr(rulestr, '-'))
 			return -EINVAL;
 		break;
@@ -3075,7 +3075,7 @@ static void security_netlbl_cache_add(struct netlbl_lsm_secattr *secattr,
  * Description:
  * Convert the given NetLabel security attributes in @secattr into a
  * SELinux SID.  If the @secattr field does not contain a full SELinux
- * SID/context then use SECINITSID_NETMSG as the foundation.  If possibile the
+ * SID/context then use SECINITSID_NETMSG as the foundation.  If possible the
  * 'cache' field of @secattr is set and the CACHE flag is set; this is to
  * allow the @secattr to be used by NetLabel to cache the secattr to SID
  * conversion for future lookups.  Returns zero on success, negative values on
diff --git a/security/smack/smack_access.c b/security/smack/smack_access.c
index 86453db4333d..9637e107f7ea 100644
--- a/security/smack/smack_access.c
+++ b/security/smack/smack_access.c
@@ -431,7 +431,7 @@ char *smk_import(const char *string, int len)
  * smack_from_secid - find the Smack label associated with a secid
  * @secid: an integer that might be associated with a Smack label
  *
- * Returns a pointer to the appropraite Smack label if there is one,
+ * Returns a pointer to the appropriate Smack label if there is one,
  * otherwise a pointer to the invalid Smack label.
  */
 char *smack_from_secid(const u32 secid)
diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
index 23c7a6d0c80c..c6f8fcadae07 100644
--- a/security/smack/smack_lsm.c
+++ b/security/smack/smack_lsm.c
@@ -1794,7 +1794,7 @@ static void smack_set_catset(char *catset, struct netlbl_lsm_secattr *sap)
  * Casey says that CIPSO is good enough for now.
  * It can be used to effect.
  * It can also be abused to effect when necessary.
- * Appologies to the TSIG group in general and GW in particular.
+ * Apologies to the TSIG group in general and GW in particular.
  */
 static void smack_to_secattr(char *smack, struct netlbl_lsm_secattr *nlsp)
 {
@@ -2530,7 +2530,7 @@ static void smack_d_instantiate(struct dentry *opt_dentry, struct inode *inode)
 	switch (sbp->s_magic) {
 	case SMACK_MAGIC:
 		/*
-		 * Casey says that it's a little embarassing
+		 * Casey says that it's a little embarrassing
 		 * that the smack file system doesn't do
 		 * extended attributes.
 		 */
@@ -3084,7 +3084,7 @@ static int smack_inet_conn_request(struct sock *sk, struct sk_buff *skb,
 	/*
 	 * We need to decide if we want to label the incoming connection here
 	 * if we do we only need to label the request_sock and the stack will
-	 * propogate the wire-label to the sock when it is created.
+	 * propagate the wire-label to the sock when it is created.
 	 */
 	hdr = ip_hdr(skb);
 	addr.sin_addr.s_addr = hdr->saddr;
diff --git a/security/smack/smackfs.c b/security/smack/smackfs.c
index 90d1bbaaa6f3..f93460156dce 100644
--- a/security/smack/smackfs.c
+++ b/security/smack/smackfs.c
@@ -208,7 +208,7 @@ static ssize_t smk_write_load_list(struct file *file, const char __user *buf,
 	if (*ppos != 0)
 		return -EINVAL;
 	/*
-	 * Minor hack for backward compatability
+	 * Minor hack for backward compatibility
 	 */
 	if (count < (SMK_OLOADLEN) || count > SMK_LOADLEN)
 		return -EINVAL;
@@ -223,7 +223,7 @@ static ssize_t smk_write_load_list(struct file *file, const char __user *buf,
 	}
 
 	/*
-	 * More on the minor hack for backward compatability
+	 * More on the minor hack for backward compatibility
 	 */
 	if (count == (SMK_OLOADLEN))
 		data[SMK_OLOADLEN] = '-';
@@ -927,7 +927,7 @@ static ssize_t smk_write_netlbladdr(struct file *file, const char __user *buf,
 		}
 	} else {
 		/* we delete the unlabeled entry, only if the previous label
-		 * wasnt the special CIPSO option */
+		 * wasn't the special CIPSO option */
 		if (skp->smk_label != smack_cipso_option)
 			rc = netlbl_cfg_unlbl_static_del(&init_net, NULL,
 					&skp->smk_host.sin_addr, &skp->smk_mask,
diff --git a/security/tomoyo/load_policy.c b/security/tomoyo/load_policy.c
index bbada7ca1b91..3312e5624f24 100644
--- a/security/tomoyo/load_policy.c
+++ b/security/tomoyo/load_policy.c
@@ -23,7 +23,7 @@ static bool tomoyo_policy_loader_exists(void)
 	 * If the initrd includes /sbin/init but real-root-dev has not
 	 * mounted on / yet, activating MAC will block the system since
 	 * policies are not loaded yet.
-	 * Thus, let do_execve() call this function everytime.
+	 * Thus, let do_execve() call this function every time.
 	 */
 	struct path path;
 
diff --git a/sound/aoa/codecs/tas.c b/sound/aoa/codecs/tas.c
index fd2188c3df2b..58804c7acfcf 100644
--- a/sound/aoa/codecs/tas.c
+++ b/sound/aoa/codecs/tas.c
@@ -170,7 +170,7 @@ static void tas_set_volume(struct tas *tas)
 	/* analysing the volume and mixer tables shows
 	 * that they are similar enough when we shift
 	 * the mixer table down by 4 bits. The error
-	 * is miniscule, in just one item the error
+	 * is minuscule, in just one item the error
 	 * is 1, at a value of 0x07f17b (mixer table
 	 * value is 0x07f17a) */
 	tmp = tas_gaintable[left];
diff --git a/sound/core/init.c b/sound/core/init.c
index 3e65da21a08c..a0080aa45ae9 100644
--- a/sound/core/init.c
+++ b/sound/core/init.c
@@ -848,6 +848,7 @@ int snd_card_file_add(struct snd_card *card, struct file *file)
 		return -ENOMEM;
 	mfile->file = file;
 	mfile->disconnected_f_op = NULL;
+	INIT_LIST_HEAD(&mfile->shutdown_list);
 	spin_lock(&card->files_lock);
 	if (card->shutdown) {
 		spin_unlock(&card->files_lock);
@@ -883,6 +884,9 @@ int snd_card_file_remove(struct snd_card *card, struct file *file)
 	list_for_each_entry(mfile, &card->files_list, list) {
 		if (mfile->file == file) {
 			list_del(&mfile->list);
+			spin_lock(&shutdown_lock);
+			list_del(&mfile->shutdown_list);
+			spin_unlock(&shutdown_lock);
 			if (mfile->disconnected_f_op)
 				fops_put(mfile->disconnected_f_op);
 			found = mfile;
diff --git a/sound/core/pcm_lib.c b/sound/core/pcm_lib.c
index a82e3756a72d..64449cb8f873 100644
--- a/sound/core/pcm_lib.c
+++ b/sound/core/pcm_lib.c
@@ -375,6 +375,7 @@ static int snd_pcm_update_hw_ptr0(struct snd_pcm_substream *substream,
 	}
 
 	if (runtime->no_period_wakeup) {
+		snd_pcm_sframes_t xrun_threshold;
 		/*
 		 * Without regular period interrupts, we have to check
 		 * the elapsed time to detect xruns.
@@ -383,7 +384,8 @@ static int snd_pcm_update_hw_ptr0(struct snd_pcm_substream *substream,
 		if (jdelta < runtime->hw_ptr_buffer_jiffies / 2)
 			goto no_delta_check;
 		hdelta = jdelta - delta * HZ / runtime->rate;
-		while (hdelta > runtime->hw_ptr_buffer_jiffies / 2 + 1) {
+		xrun_threshold = runtime->hw_ptr_buffer_jiffies / 2 + 1;
+		while (hdelta > xrun_threshold) {
 			delta += runtime->buffer_size;
 			hw_base += runtime->buffer_size;
 			if (hw_base >= runtime->boundary)
diff --git a/sound/core/pcm_memory.c b/sound/core/pcm_memory.c
index 917e4055ee30..150cb7edffee 100644
--- a/sound/core/pcm_memory.c
+++ b/sound/core/pcm_memory.c
@@ -253,7 +253,7 @@ static int snd_pcm_lib_preallocate_pages1(struct snd_pcm_substream *substream,
  * snd_pcm_lib_preallocate_pages - pre-allocation for the given DMA type
  * @substream: the pcm substream instance
  * @type: DMA type (SNDRV_DMA_TYPE_*)
- * @data: DMA type dependant data
+ * @data: DMA type dependent data
  * @size: the requested pre-allocation size in bytes
  * @max: the max. allowed pre-allocation size
  *
@@ -278,10 +278,10 @@ int snd_pcm_lib_preallocate_pages(struct snd_pcm_substream *substream,
 EXPORT_SYMBOL(snd_pcm_lib_preallocate_pages);
 
 /**
- * snd_pcm_lib_preallocate_pages_for_all - pre-allocation for continous memory type (all substreams)
+ * snd_pcm_lib_preallocate_pages_for_all - pre-allocation for continuous memory type (all substreams)
  * @pcm: the pcm instance
  * @type: DMA type (SNDRV_DMA_TYPE_*)
- * @data: DMA type dependant data
+ * @data: DMA type dependent data
  * @size: the requested pre-allocation size in bytes
  * @max: the max. allowed pre-allocation size
  *
diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
index ae42b6509ce4..1a07750f3836 100644
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -460,7 +460,7 @@ static int snd_pcm_hw_params(struct snd_pcm_substream *substream,
 				   PM_QOS_CPU_DMA_LATENCY, usecs);
 	return 0;
  _error:
-	/* hardware might be unuseable from this time,
+	/* hardware might be unusable from this time,
 	   so we force application to retry to set
 	   the correct hardware parameter settings */
 	runtime->status->state = SNDRV_PCM_STATE_OPEN;
@@ -3201,15 +3201,6 @@ int snd_pcm_lib_mmap_iomem(struct snd_pcm_substream *substream,
 EXPORT_SYMBOL(snd_pcm_lib_mmap_iomem);
 #endif /* SNDRV_PCM_INFO_MMAP */
 
-/* mmap callback with pgprot_noncached */
-int snd_pcm_lib_mmap_noncached(struct snd_pcm_substream *substream,
-			       struct vm_area_struct *area)
-{
-	area->vm_page_prot = pgprot_noncached(area->vm_page_prot);
-	return snd_pcm_default_mmap(substream, area);
-}
-EXPORT_SYMBOL(snd_pcm_lib_mmap_noncached);
-
 /*
  * mmap DMA buffer
  */
diff --git a/sound/core/seq/seq_dummy.c b/sound/core/seq/seq_dummy.c
index f3bdc54b429a..1d7d90ca455e 100644
--- a/sound/core/seq/seq_dummy.c
+++ b/sound/core/seq/seq_dummy.c
@@ -50,7 +50,7 @@
 
 	option snd-seq-dummy ports=4
 
-  The modle option "duplex=1" enables duplex operation to the port.
+  The model option "duplex=1" enables duplex operation to the port.
   In duplex mode, a pair of ports are created instead of single port,
   and events are tunneled between pair-ports.  For example, input to
   port A is sent to output port of another port B and vice versa.
diff --git a/sound/core/vmaster.c b/sound/core/vmaster.c
index a89948ae9e8d..a39d3d8c2f9c 100644
--- a/sound/core/vmaster.c
+++ b/sound/core/vmaster.c
@@ -233,7 +233,7 @@ static void slave_free(struct snd_kcontrol *kcontrol)
  * Add a slave control to the group with the given master control
  *
  * All slaves must be the same type (returning the same information
- * via info callback).  The fucntion doesn't check it, so it's your
+ * via info callback).  The function doesn't check it, so it's your
  * responsibility.
  *
  * Also, some additional limitations:
diff --git a/sound/drivers/pcm-indirect2.c b/sound/drivers/pcm-indirect2.c
index 3c93c23e4883..e73fafd761b3 100644
--- a/sound/drivers/pcm-indirect2.c
+++ b/sound/drivers/pcm-indirect2.c
@@ -264,7 +264,7 @@ snd_pcm_indirect2_playback_transfer(struct snd_pcm_substream *substream,
 		if (diff < -(snd_pcm_sframes_t) (runtime->boundary / 2))
 			diff += runtime->boundary;
 		/* number of bytes "added" by ALSA increases the number of
-		 * bytes which are ready to "be transfered to HW"/"played"
+		 * bytes which are ready to "be transferred to HW"/"played"
 		 * Then, set rec->appl_ptr to not count bytes twice next time.
 		 */
 		rec->sw_ready += (int)frames_to_bytes(runtime, diff);
@@ -330,7 +330,7 @@ snd_pcm_indirect2_playback_transfer(struct snd_pcm_substream *substream,
 		/* copy bytes from intermediate buffer position sw_data to the
 		 * HW and return number of bytes actually written
 		 * Furthermore, set hw_ready to 0, if the fifo isn't empty
-		 * now => more could be transfered to fifo
+		 * now => more could be transferred to fifo
 		 */
 		bytes = copy(substream, rec, bytes);
 		rec->bytes2hw += bytes;
diff --git a/sound/drivers/vx/vx_pcm.c b/sound/drivers/vx/vx_pcm.c
index 35a2f71a6af5..5e897b236cec 100644
--- a/sound/drivers/vx/vx_pcm.c
+++ b/sound/drivers/vx/vx_pcm.c
@@ -1189,7 +1189,7 @@ void vx_pcm_update_intr(struct vx_core *chip, unsigned int events)
 
 
 /*
- * vx_init_audio_io - check the availabe audio i/o and allocate pipe arrays
+ * vx_init_audio_io - check the available audio i/o and allocate pipe arrays
  */
 static int vx_init_audio_io(struct vx_core *chip)
 {
diff --git a/sound/firewire/speakers.c b/sound/firewire/speakers.c
index 0fce9218abb1..5466de8527bd 100644
--- a/sound/firewire/speakers.c
+++ b/sound/firewire/speakers.c
@@ -778,10 +778,9 @@ static int __devexit fwspk_remove(struct device *dev)
 {
 	struct fwspk *fwspk = dev_get_drvdata(dev);
 
-	snd_card_disconnect(fwspk->card);
-
 	mutex_lock(&fwspk->mutex);
 	amdtp_out_stream_pcm_abort(&fwspk->stream);
+	snd_card_disconnect(fwspk->card);
 	fwspk_stop_stream(fwspk);
 	mutex_unlock(&fwspk->mutex);
 
diff --git a/sound/isa/sb/emu8000.c b/sound/isa/sb/emu8000.c
index 0c40951b6523..5d61f5a29130 100644
--- a/sound/isa/sb/emu8000.c
+++ b/sound/isa/sb/emu8000.c
@@ -370,7 +370,7 @@ init_arrays(struct snd_emu8000 *emu)
 
 /*
  * Size the onboard memory.
- * This is written so as not to need arbitary delays after the write. It
+ * This is written so as not to need arbitrary delays after the write. It
  * seems that the only way to do this is to use the one channel and keep
  * reallocating between read and write.
  */
diff --git a/sound/isa/wavefront/wavefront_midi.c b/sound/isa/wavefront/wavefront_midi.c
index f14a7c0b6998..65329f3abc30 100644
--- a/sound/isa/wavefront/wavefront_midi.c
+++ b/sound/isa/wavefront/wavefront_midi.c
@@ -537,7 +537,7 @@ snd_wavefront_midi_start (snd_wavefront_card_t *card)
 	}
 
 	/* Turn on Virtual MIDI, but first *always* turn it off,
-	   since otherwise consectutive reloads of the driver will
+	   since otherwise consecutive reloads of the driver will
 	   never cause the hardware to generate the initial "internal" or 
 	   "external" source bytes in the MIDI data stream. This
 	   is pretty important, since the internal hardware generally will
diff --git a/sound/isa/wss/wss_lib.c b/sound/isa/wss/wss_lib.c
index 9191b32d9130..2a42cc377957 100644
--- a/sound/isa/wss/wss_lib.c
+++ b/sound/isa/wss/wss_lib.c
@@ -424,7 +424,7 @@ void snd_wss_mce_down(struct snd_wss *chip)
 
 	/*
 	 * Wait for (possible -- during init auto-calibration may not be set)
-	 * calibration process to start. Needs upto 5 sample periods on AD1848
+	 * calibration process to start. Needs up to 5 sample periods on AD1848
 	 * which at the slowest possible rate of 5.5125 kHz means 907 us.
 	 */
 	msleep(1);
diff --git a/sound/oss/ac97_codec.c b/sound/oss/ac97_codec.c
index 854c303264dc..0cd23d94888f 100644
--- a/sound/oss/ac97_codec.c
+++ b/sound/oss/ac97_codec.c
@@ -28,7 +28,7 @@
  *
  * History
  * May 02, 2003 Liam Girdwood <lrg@slimlogic.co.uk>
- *	Removed non existant WM9700
+ *	Removed non existent WM9700
  *	Added support for WM9705, WM9708, WM9709, WM9710, WM9711
  *	WM9712 and WM9717
  * Mar 28, 2002 Randolph Bentson <bentson@holmsjoen.com>
@@ -441,7 +441,7 @@ static void ac97_set_mixer(struct ac97_codec *codec, unsigned int oss_mixer, uns
 }
 
 /* read or write the recmask, the ac97 can really have left and right recording
-   inputs independantly set, but OSS doesn't seem to want us to express that to
+   inputs independently set, but OSS doesn't seem to want us to express that to
    the user. the caller guarantees that we have a supported bit set, and they
    must be holding the card's spinlock */
 static int ac97_recmask_io(struct ac97_codec *codec, int rw, int mask) 
@@ -754,7 +754,7 @@ int ac97_probe_codec(struct ac97_codec *codec)
 	if((codec->codec_ops == &null_ops) && (f & 4))
 		codec->codec_ops = &default_digital_ops;
 	
-	/* A device which thinks its a modem but isnt */
+	/* A device which thinks its a modem but isn't */
 	if(codec->flags & AC97_DELUDED_MODEM)
 		codec->modem = 0;
 		
diff --git a/sound/oss/audio.c b/sound/oss/audio.c
index 7df48a25c4ee..4b958b1c497c 100644
--- a/sound/oss/audio.c
+++ b/sound/oss/audio.c
@@ -514,7 +514,7 @@ int audio_ioctl(int dev, struct file *file, unsigned int cmd, void __user *arg)
 				count += dmap->bytes_in_use;	/* Pointer wrap not handled yet */
 			count += dmap->byte_counter;
 		
-			/* Substract current count from the number of bytes written by app */
+			/* Subtract current count from the number of bytes written by app */
 			count = dmap->user_counter - count;
 			if (count < 0)
 				count = 0;
@@ -931,7 +931,7 @@ static int dma_ioctl(int dev, unsigned int cmd, void __user *arg)
 			if (count < dmap_out->fragment_size && dmap_out->qhead != 0)
 				count += dmap_out->bytes_in_use;	/* Pointer wrap not handled yet */
 			count += dmap_out->byte_counter;
-			/* Substract current count from the number of bytes written by app */
+			/* Subtract current count from the number of bytes written by app */
 			count = dmap_out->user_counter - count;
 			if (count < 0)
 				count = 0;
diff --git a/sound/oss/dev_table.h b/sound/oss/dev_table.h
index b7617bee6388..0199a317c5a9 100644
--- a/sound/oss/dev_table.h
+++ b/sound/oss/dev_table.h
@@ -271,7 +271,7 @@ struct synth_operations
 	void (*reset) (int dev);
 	void (*hw_control) (int dev, unsigned char *event);
 	int (*load_patch) (int dev, int format, const char __user *addr,
-	     int offs, int count, int pmgr_flag);
+	     int count, int pmgr_flag);
 	void (*aftertouch) (int dev, int voice, int pressure);
 	void (*controller) (int dev, int voice, int ctrl_num, int value);
 	void (*panning) (int dev, int voice, int value);
diff --git a/sound/oss/dmasound/dmasound_core.c b/sound/oss/dmasound/dmasound_core.c
index 87e2c72651f5..c918313c2206 100644
--- a/sound/oss/dmasound/dmasound_core.c
+++ b/sound/oss/dmasound/dmasound_core.c
@@ -1021,7 +1021,7 @@ static int sq_ioctl(struct file *file, u_int cmd, u_long arg)
 	case SNDCTL_DSP_SYNC:
 		/* This call, effectively, has the same behaviour as SNDCTL_DSP_RESET
 		   except that it waits for output to finish before resetting
-		   everything - read, however, is killed imediately.
+		   everything - read, however, is killed immediately.
 		*/
 		result = 0 ;
 		if (file->f_mode & FMODE_WRITE) {
diff --git a/sound/oss/midi_synth.c b/sound/oss/midi_synth.c
index 3c09374ea5bf..2292c230d7e6 100644
--- a/sound/oss/midi_synth.c
+++ b/sound/oss/midi_synth.c
@@ -476,7 +476,7 @@ EXPORT_SYMBOL(midi_synth_hw_control);
 
 int
 midi_synth_load_patch(int dev, int format, const char __user *addr,
-		      int offs, int count, int pmgr_flag)
+		      int count, int pmgr_flag)
 {
 	int             orig_dev = synth_devs[dev]->midi_dev;
 
@@ -491,33 +491,29 @@ midi_synth_load_patch(int dev, int format, const char __user *addr,
 	if (!prefix_cmd(orig_dev, 0xf0))
 		return 0;
 
+	/* Invalid patch format */
 	if (format != SYSEX_PATCH)
-	{
-/*		  printk("MIDI Error: Invalid patch format (key) 0x%x\n", format);*/
 		  return -EINVAL;
-	}
+
+	/* Patch header too short */
 	if (count < hdr_size)
-	{
-/*		printk("MIDI Error: Patch header too short\n");*/
 		return -EINVAL;
-	}
+
 	count -= hdr_size;
 
 	/*
-	 * Copy the header from user space but ignore the first bytes which have
-	 * been transferred already.
+	 * Copy the header from user space
 	 */
 
-	if(copy_from_user(&((char *) &sysex)[offs], &(addr)[offs], hdr_size - offs))
+	if (copy_from_user(&sysex, addr, hdr_size))
 		return -EFAULT;
- 
- 	if (count < sysex.len)
-	{
-/*		printk(KERN_WARNING "MIDI Warning: Sysex record too short (%d<%d)\n", count, (int) sysex.len);*/
+
+	/* Sysex record too short */
+	if ((unsigned)count < (unsigned)sysex.len)
 		sysex.len = count;
-	}
-  	left = sysex.len;
-  	src_offs = 0;
+
+	left = sysex.len;
+	src_offs = 0;
 
 	for (i = 0; i < left && !signal_pending(current); i++)
 	{
diff --git a/sound/oss/midi_synth.h b/sound/oss/midi_synth.h
index 6bc9d00bc77c..b64ddd6c4abc 100644
--- a/sound/oss/midi_synth.h
+++ b/sound/oss/midi_synth.h
@@ -8,7 +8,7 @@ int midi_synth_open (int dev, int mode);
 void midi_synth_close (int dev);
 void midi_synth_hw_control (int dev, unsigned char *event);
 int midi_synth_load_patch (int dev, int format, const char __user * addr,
-		 int offs, int count, int pmgr_flag);
+		 int count, int pmgr_flag);
 void midi_synth_panning (int dev, int channel, int pressure);
 void midi_synth_aftertouch (int dev, int channel, int pressure);
 void midi_synth_controller (int dev, int channel, int ctrl_num, int value);
diff --git a/sound/oss/midibuf.c b/sound/oss/midibuf.c
index ceedb1eff203..8cdb2cfe65c8 100644
--- a/sound/oss/midibuf.c
+++ b/sound/oss/midibuf.c
@@ -295,7 +295,7 @@ int MIDIbuf_write(int dev, struct file *file, const char __user *buf, int count)
 
 		for (i = 0; i < n; i++)
 		{
-			/* BROKE BROKE BROKE - CANT DO THIS WITH CLI !! */
+			/* BROKE BROKE BROKE - CAN'T DO THIS WITH CLI !! */
 			/* yes, think the same, so I removed the cli() brackets 
 				QUEUE_BYTE is protected against interrupts */
 			if (copy_from_user((char *) &tmp_data, &(buf)[c], 1)) {
diff --git a/sound/oss/opl3.c b/sound/oss/opl3.c
index 938c48c43585..407cd677950b 100644
--- a/sound/oss/opl3.c
+++ b/sound/oss/opl3.c
@@ -820,7 +820,7 @@ static void opl3_hw_control(int dev, unsigned char *event)
 }
 
 static int opl3_load_patch(int dev, int format, const char __user *addr,
-		int offs, int count, int pmgr_flag)
+		int count, int pmgr_flag)
 {
 	struct sbi_instrument ins;
 
@@ -830,11 +830,7 @@ static int opl3_load_patch(int dev, int format, const char __user *addr,
 		return -EINVAL;
 	}
 
-	/*
-	 * What the fuck is going on here?  We leave junk in the beginning
-	 * of ins and then check the field pretty close to that beginning?
-	 */
-	if(copy_from_user(&((char *) &ins)[offs], addr + offs, sizeof(ins) - offs))
+	if (copy_from_user(&ins, addr, sizeof(ins)))
 		return -EFAULT;
 
 	if (ins.channel < 0 || ins.channel >= SBFM_MAXINSTR)
@@ -849,6 +845,10 @@ static int opl3_load_patch(int dev, int format, const char __user *addr,
 
 static void opl3_panning(int dev, int voice, int value)
 {
+
+	if (voice < 0 || voice >= devc->nr_voice)
+		return;
+
 	devc->voc[voice].panning = value;
 }
 
@@ -1066,8 +1066,15 @@ static int opl3_alloc_voice(int dev, int chn, int note, struct voice_alloc_info
 
 static void opl3_setup_voice(int dev, int voice, int chn)
 {
-	struct channel_info *info =
-	&synth_devs[dev]->chn_info[chn];
+	struct channel_info *info;
+
+	if (voice < 0 || voice >= devc->nr_voice)
+		return;
+
+	if (chn < 0 || chn > 15)
+		return;
+
+	info = &synth_devs[dev]->chn_info[chn];
 
 	opl3_set_instr(dev, voice, info->pgm_num);
 
diff --git a/sound/oss/sb_card.c b/sound/oss/sb_card.c
index 84ef4d06c1c2..fb5d7250de38 100644
--- a/sound/oss/sb_card.c
+++ b/sound/oss/sb_card.c
@@ -1,7 +1,7 @@
 /*
  * sound/oss/sb_card.c
  *
- * Detection routine for the ISA Sound Blaster and compatable sound
+ * Detection routine for the ISA Sound Blaster and compatible sound
  * cards.
  *
  * This file is distributed under the GNU GENERAL PUBLIC LICENSE (GPL)
diff --git a/sound/oss/sb_ess.c b/sound/oss/sb_ess.c
index 9890cf2066ff..5c773dff5ac5 100644
--- a/sound/oss/sb_ess.c
+++ b/sound/oss/sb_ess.c
@@ -168,7 +168,7 @@
  * corresponding playback levels, unless recmask says they aren't recorded. In
  * the latter case the recording volumes are 0.
  * Now recording levels of inputs can be controlled, by changing the playback
- * levels. Futhermore several devices can be recorded together (which is not
+ * levels. Furthermore several devices can be recorded together (which is not
  * possible with the ES1688).
  * Besides the separate recording level control for each input, the common
  * recording level can also be controlled by RECLEV as described above.
diff --git a/sound/oss/sequencer.c b/sound/oss/sequencer.c
index 5ea1098ac427..30bcfe470f83 100644
--- a/sound/oss/sequencer.c
+++ b/sound/oss/sequencer.c
@@ -241,7 +241,7 @@ int sequencer_write(int dev, struct file *file, const char __user *buf, int coun
 				return -ENXIO;
 
 			fmt = (*(short *) &event_rec[0]) & 0xffff;
-			err = synth_devs[dev]->load_patch(dev, fmt, buf, p + 4, c, 0);
+			err = synth_devs[dev]->load_patch(dev, fmt, buf + p, c, 0);
 			if (err < 0)
 				return err;
 
diff --git a/sound/oss/swarm_cs4297a.c b/sound/oss/swarm_cs4297a.c
index 44357d877a27..09d46484bc1a 100644
--- a/sound/oss/swarm_cs4297a.c
+++ b/sound/oss/swarm_cs4297a.c
@@ -875,7 +875,7 @@ static void start_adc(struct cs4297a_state *s)
 		if (s->prop_adc.fmt & AFMT_S8 || s->prop_adc.fmt & AFMT_U8) {
 			// 
 			// now only use 16 bit capture, due to truncation issue
-			// in the chip, noticable distortion occurs.
+			// in the chip, noticeable distortion occurs.
 			// allocate buffer and then convert from 16 bit to 
 			// 8 bit for the user buffer.
 			//
diff --git a/sound/oss/vidc.c b/sound/oss/vidc.c
index f0e0caa53200..12ba28e7b933 100644
--- a/sound/oss/vidc.c
+++ b/sound/oss/vidc.c
@@ -227,7 +227,7 @@ static int vidc_audio_set_speed(int dev, int rate)
 		} else {
 			/*printk("VIDC: internal %d %d %d\n", rate, rate_int, hwrate);*/
 			hwctrl=0x00000003;
-			/* Allow rougly 0.4% tolerance */
+			/* Allow roughly 0.4% tolerance */
 			if (diff_int > (rate/256))
 				rate=rate_int;
 		}
diff --git a/sound/pci/ad1889.c b/sound/pci/ad1889.c
index 4382d0fa6b9a..d8f6fd65ebbb 100644
--- a/sound/pci/ad1889.c
+++ b/sound/pci/ad1889.c
@@ -29,7 +29,7 @@
  *	PM support
  *	MIDI support
  *	Game Port support
- *	SG DMA support (this will need *alot* of work)
+ *	SG DMA support (this will need *a lot* of work)
  */
 
 #include <linux/init.h>
diff --git a/sound/pci/asihpi/asihpi.c b/sound/pci/asihpi/asihpi.c
index 0ac1f98d91a1..f8ccc9677c6f 100644
--- a/sound/pci/asihpi/asihpi.c
+++ b/sound/pci/asihpi/asihpi.c
@@ -22,21 +22,6 @@
  *  for any purpose including commercial applications.
  */
 
-/* >0: print Hw params, timer vars. >1: print stream write/copy sizes  */
-#define REALLY_VERBOSE_LOGGING 0
-
-#if REALLY_VERBOSE_LOGGING
-#define VPRINTK1 snd_printd
-#else
-#define VPRINTK1(...)
-#endif
-
-#if REALLY_VERBOSE_LOGGING > 1
-#define VPRINTK2 snd_printd
-#else
-#define VPRINTK2(...)
-#endif
-
 #include "hpi_internal.h"
 #include "hpimsginit.h"
 #include "hpioctl.h"
@@ -57,11 +42,25 @@
 #include <sound/tlv.h>
 #include <sound/hwdep.h>
 
-
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("AudioScience inc. <support@audioscience.com>");
 MODULE_DESCRIPTION("AudioScience ALSA ASI5000 ASI6000 ASI87xx ASI89xx");
 
+#if defined CONFIG_SND_DEBUG_VERBOSE
+/**
+ * snd_printddd - very verbose debug printk
+ * @format: format string
+ *
+ * Works like snd_printk() for debugging purposes.
+ * Ignored when CONFIG_SND_DEBUG_VERBOSE is not set.
+ * Must set snd module debug parameter to 3 to enable at runtime.
+ */
+#define snd_printddd(format, args...) \
+	__snd_printk(3, __FILE__, __LINE__, format, ##args)
+#else
+#define snd_printddd(format, args...)	do { } while (0)
+#endif
+
 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* index 0-MAX */
 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
@@ -289,7 +288,6 @@ static u16 handle_error(u16 err, int line, char *filename)
 #define hpi_handle_error(x)  handle_error(x, __LINE__, __FILE__)
 
 /***************************** GENERAL PCM ****************/
-#if REALLY_VERBOSE_LOGGING
 static void print_hwparams(struct snd_pcm_hw_params *p)
 {
 	snd_printd("HWPARAMS \n");
@@ -304,9 +302,6 @@ static void print_hwparams(struct snd_pcm_hw_params *p)
 	snd_printd("periods %d \n", params_periods(p));
 	snd_printd("buffer_size %d \n", params_buffer_size(p));
 }
-#else
-#define print_hwparams(x)
-#endif
 
 static snd_pcm_format_t hpi_to_alsa_formats[] = {
 	-1,			/* INVALID */
@@ -381,13 +376,13 @@ static void snd_card_asihpi_pcm_samplerates(struct snd_card_asihpi *asihpi,
 				"No local sampleclock, err %d\n", err);
 		}
 
-		for (idx = 0; idx < 100; idx++) {
-			if (hpi_sample_clock_query_local_rate(
-				h_control, idx, &sample_rate)) {
-				if (!idx)
-					snd_printk(KERN_ERR
-						"Local rate query failed\n");
-
+		for (idx = -1; idx < 100; idx++) {
+			if (idx == -1) {
+				if (hpi_sample_clock_get_sample_rate(h_control,
+								&sample_rate))
+					continue;
+			} else if (hpi_sample_clock_query_local_rate(h_control,
+							idx, &sample_rate)) {
 				break;
 			}
 
@@ -440,8 +435,6 @@ static void snd_card_asihpi_pcm_samplerates(struct snd_card_asihpi *asihpi,
 		}
 	}
 
-	/* printk(KERN_INFO "Supported rates %X %d %d\n",
-	   rates, rate_min, rate_max); */
 	pcmhw->rates = rates;
 	pcmhw->rate_min = rate_min;
 	pcmhw->rate_max = rate_max;
@@ -466,7 +459,7 @@ static int snd_card_asihpi_pcm_hw_params(struct snd_pcm_substream *substream,
 	if (err)
 		return err;
 
-	VPRINTK1(KERN_INFO "format %d, %d chans, %d_hz\n",
+	snd_printdd("format %d, %d chans, %d_hz\n",
 				format, params_channels(params),
 				params_rate(params));
 
@@ -489,13 +482,12 @@ static int snd_card_asihpi_pcm_hw_params(struct snd_pcm_substream *substream,
 		err = hpi_stream_host_buffer_attach(dpcm->h_stream,
 			params_buffer_bytes(params),  runtime->dma_addr);
 		if (err == 0) {
-			VPRINTK1(KERN_INFO
+			snd_printdd(
 				"stream_host_buffer_attach succeeded %u %lu\n",
 				params_buffer_bytes(params),
 				(unsigned long)runtime->dma_addr);
 		} else {
-			snd_printd(KERN_INFO
-					"stream_host_buffer_attach error %d\n",
+			snd_printd("stream_host_buffer_attach error %d\n",
 					err);
 			return -ENOMEM;
 		}
@@ -504,7 +496,7 @@ static int snd_card_asihpi_pcm_hw_params(struct snd_pcm_substream *substream,
 						&dpcm->hpi_buffer_attached,
 						NULL, NULL, NULL);
 
-		VPRINTK1(KERN_INFO "stream_host_buffer_attach status 0x%x\n",
+		snd_printdd("stream_host_buffer_attach status 0x%x\n",
 				dpcm->hpi_buffer_attached);
 	}
 	bytes_per_sec = params_rate(params) * params_channels(params);
@@ -517,7 +509,7 @@ static int snd_card_asihpi_pcm_hw_params(struct snd_pcm_substream *substream,
 	dpcm->bytes_per_sec = bytes_per_sec;
 	dpcm->buffer_bytes = params_buffer_bytes(params);
 	dpcm->period_bytes = params_period_bytes(params);
-	VPRINTK1(KERN_INFO "buffer_bytes=%d, period_bytes=%d, bps=%d\n",
+	snd_printdd("buffer_bytes=%d, period_bytes=%d, bps=%d\n",
 			dpcm->buffer_bytes, dpcm->period_bytes, bytes_per_sec);
 
 	return 0;
@@ -573,7 +565,7 @@ static int snd_card_asihpi_trigger(struct snd_pcm_substream *substream,
 	struct snd_pcm_substream *s;
 	u16 e;
 
-	VPRINTK1(KERN_INFO "%c%d trigger\n",
+	snd_printdd("%c%d trigger\n",
 			SCHR(substream->stream), substream->number);
 	switch (cmd) {
 	case SNDRV_PCM_TRIGGER_START:
@@ -597,7 +589,7 @@ static int snd_card_asihpi_trigger(struct snd_pcm_substream *substream,
 				* data??
 				*/
 				unsigned int preload = ds->period_bytes * 1;
-				VPRINTK2(KERN_INFO "%d preload x%x\n", s->number, preload);
+				snd_printddd("%d preload x%x\n", s->number, preload);
 				hpi_handle_error(hpi_outstream_write_buf(
 						ds->h_stream,
 						&runtime->dma_area[0],
@@ -607,7 +599,7 @@ static int snd_card_asihpi_trigger(struct snd_pcm_substream *substream,
 			}
 
 			if (card->support_grouping) {
-				VPRINTK1(KERN_INFO "\t%c%d group\n",
+				snd_printdd("\t%c%d group\n",
 						SCHR(s->stream),
 						s->number);
 				e = hpi_stream_group_add(
@@ -622,7 +614,7 @@ static int snd_card_asihpi_trigger(struct snd_pcm_substream *substream,
 			} else
 				break;
 		}
-		VPRINTK1(KERN_INFO "start\n");
+		snd_printdd("start\n");
 		/* start the master stream */
 		snd_card_asihpi_pcm_timer_start(substream);
 		if ((substream->stream == SNDRV_PCM_STREAM_CAPTURE) ||
@@ -644,14 +636,14 @@ static int snd_card_asihpi_trigger(struct snd_pcm_substream *substream,
 			s->runtime->status->state = SNDRV_PCM_STATE_SETUP;
 
 			if (card->support_grouping) {
-				VPRINTK1(KERN_INFO "\t%c%d group\n",
+				snd_printdd("\t%c%d group\n",
 				SCHR(s->stream),
 					s->number);
 				snd_pcm_trigger_done(s, substream);
 			} else
 				break;
 		}
-		VPRINTK1(KERN_INFO "stop\n");
+		snd_printdd("stop\n");
 
 		/* _prepare and _hwparams reset the stream */
 		hpi_handle_error(hpi_stream_stop(dpcm->h_stream));
@@ -664,12 +656,12 @@ static int snd_card_asihpi_trigger(struct snd_pcm_substream *substream,
 		break;
 
 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
-		VPRINTK1(KERN_INFO "pause release\n");
+		snd_printdd("pause release\n");
 		hpi_handle_error(hpi_stream_start(dpcm->h_stream));
 		snd_card_asihpi_pcm_timer_start(substream);
 		break;
 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
-		VPRINTK1(KERN_INFO "pause\n");
+		snd_printdd("pause\n");
 		snd_card_asihpi_pcm_timer_stop(substream);
 		hpi_handle_error(hpi_stream_stop(dpcm->h_stream));
 		break;
@@ -741,7 +733,7 @@ static void snd_card_asihpi_timer_function(unsigned long data)
 	u16 state;
 	u32 buffer_size, bytes_avail, samples_played, on_card_bytes;
 
-	VPRINTK1(KERN_INFO "%c%d snd_card_asihpi_timer_function\n",
+	snd_printdd("%c%d snd_card_asihpi_timer_function\n",
 				SCHR(substream->stream), substream->number);
 
 	/* find minimum newdata and buffer pos in group */
@@ -770,10 +762,10 @@ static void snd_card_asihpi_timer_function(unsigned long data)
 				if ((bytes_avail == 0) &&
 				    (on_card_bytes < ds->pcm_buf_host_rw_ofs)) {
 					hpi_handle_error(hpi_stream_start(ds->h_stream));
-					VPRINTK1(KERN_INFO "P%d start\n", s->number);
+					snd_printdd("P%d start\n", s->number);
 				}
 			} else if (state == HPI_STATE_DRAINED) {
-				VPRINTK1(KERN_WARNING "P%d drained\n",
+				snd_printd(KERN_WARNING "P%d drained\n",
 						s->number);
 				/*snd_pcm_stop(s, SNDRV_PCM_STATE_XRUN);
 				continue; */
@@ -794,13 +786,13 @@ static void snd_card_asihpi_timer_function(unsigned long data)
 				newdata);
 		}
 
-		VPRINTK1(KERN_INFO "PB timer hw_ptr x%04lX, appl_ptr x%04lX\n",
+		snd_printdd("hw_ptr x%04lX, appl_ptr x%04lX\n",
 			(unsigned long)frames_to_bytes(runtime,
 						runtime->status->hw_ptr),
 			(unsigned long)frames_to_bytes(runtime,
 						runtime->control->appl_ptr));
 
-		VPRINTK1(KERN_INFO "%d %c%d S=%d, rw=%04X, dma=x%04X, left=x%04X,"
+		snd_printdd("%d %c%d S=%d, rw=%04X, dma=x%04X, left=x%04X,"
 			" aux=x%04X space=x%04X\n",
 			loops, SCHR(s->stream),	s->number,
 			state,	ds->pcm_buf_host_rw_ofs, pcm_buf_dma_ofs, (int)bytes_avail,
@@ -822,7 +814,7 @@ static void snd_card_asihpi_timer_function(unsigned long data)
 
 	next_jiffies = max(next_jiffies, 1U);
 	dpcm->timer.expires = jiffies + next_jiffies;
-	VPRINTK1(KERN_INFO "jif %d buf pos x%04X newdata x%04X xfer x%04X\n",
+	snd_printdd("jif %d buf pos x%04X newdata x%04X xfer x%04X\n",
 			next_jiffies, pcm_buf_dma_ofs, newdata, xfercount);
 
 	snd_pcm_group_for_each_entry(s, substream) {
@@ -837,7 +829,7 @@ static void snd_card_asihpi_timer_function(unsigned long data)
 		if (xfercount && (on_card_bytes <= ds->period_bytes)) {
 			if (card->support_mmap) {
 				if (s->stream == SNDRV_PCM_STREAM_PLAYBACK) {
-					VPRINTK2(KERN_INFO "P%d write x%04x\n",
+					snd_printddd("P%d write x%04x\n",
 							s->number,
 							ds->period_bytes);
 					hpi_handle_error(
@@ -848,7 +840,7 @@ static void snd_card_asihpi_timer_function(unsigned long data)
 							xfercount,
 							&ds->format));
 				} else {
-					VPRINTK2(KERN_INFO "C%d read x%04x\n",
+					snd_printddd("C%d read x%04x\n",
 						s->number,
 						xfercount);
 					hpi_handle_error(
@@ -871,7 +863,7 @@ static void snd_card_asihpi_timer_function(unsigned long data)
 static int snd_card_asihpi_playback_ioctl(struct snd_pcm_substream *substream,
 					  unsigned int cmd, void *arg)
 {
-	/* snd_printd(KERN_INFO "Playback ioctl %d\n", cmd); */
+	snd_printdd(KERN_INFO "Playback ioctl %d\n", cmd);
 	return snd_pcm_lib_ioctl(substream, cmd, arg);
 }
 
@@ -881,7 +873,7 @@ static int snd_card_asihpi_playback_prepare(struct snd_pcm_substream *
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
 
-	VPRINTK1(KERN_INFO "playback prepare %d\n", substream->number);
+	snd_printdd("playback prepare %d\n", substream->number);
 
 	hpi_handle_error(hpi_outstream_reset(dpcm->h_stream));
 	dpcm->pcm_buf_host_rw_ofs = 0;
@@ -898,7 +890,7 @@ snd_card_asihpi_playback_pointer(struct snd_pcm_substream *substream)
 	snd_pcm_uframes_t ptr;
 
 	ptr = bytes_to_frames(runtime, dpcm->pcm_buf_dma_ofs  % dpcm->buffer_bytes);
-	/* VPRINTK2(KERN_INFO "playback_pointer=x%04lx\n", (unsigned long)ptr); */
+	snd_printddd("playback_pointer=x%04lx\n", (unsigned long)ptr);
 	return ptr;
 }
 
@@ -971,7 +963,7 @@ static int snd_card_asihpi_playback_open(struct snd_pcm_substream *substream)
 
 	/*? also check ASI5000 samplerate source
 	    If external, only support external rate.
-	    If internal and other stream playing, cant switch
+	    If internal and other stream playing, can't switch
 	*/
 
 	init_timer(&dpcm->timer);
@@ -1014,12 +1006,13 @@ static int snd_card_asihpi_playback_open(struct snd_pcm_substream *substream)
 
 	snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
 		card->update_interval_frames);
+
 	snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
 		card->update_interval_frames * 2, UINT_MAX);
 
 	snd_pcm_set_sync(substream);
 
-	VPRINTK1(KERN_INFO "playback open\n");
+	snd_printdd("playback open\n");
 
 	return 0;
 }
@@ -1030,7 +1023,7 @@ static int snd_card_asihpi_playback_close(struct snd_pcm_substream *substream)
 	struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
 
 	hpi_handle_error(hpi_outstream_close(dpcm->h_stream));
-	VPRINTK1(KERN_INFO "playback close\n");
+	snd_printdd("playback close\n");
 
 	return 0;
 }
@@ -1050,13 +1043,13 @@ static int snd_card_asihpi_playback_copy(struct snd_pcm_substream *substream,
 	if (copy_from_user(runtime->dma_area, src, len))
 		return -EFAULT;
 
-	VPRINTK2(KERN_DEBUG "playback copy%d %u bytes\n",
+	snd_printddd("playback copy%d %u bytes\n",
 			substream->number, len);
 
 	hpi_handle_error(hpi_outstream_write_buf(dpcm->h_stream,
 				runtime->dma_area, len, &dpcm->format));
 
-	dpcm->pcm_buf_host_rw_ofs = dpcm->pcm_buf_host_rw_ofs + len;
+	dpcm->pcm_buf_host_rw_ofs += len;
 
 	return 0;
 }
@@ -1066,16 +1059,11 @@ static int snd_card_asihpi_playback_silence(struct snd_pcm_substream *
 					    snd_pcm_uframes_t pos,
 					    snd_pcm_uframes_t count)
 {
-	unsigned int len;
-	struct snd_pcm_runtime *runtime = substream->runtime;
-	struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
-
-	len = frames_to_bytes(runtime, count);
-	VPRINTK1(KERN_INFO "playback silence  %u bytes\n", len);
-
-	memset(runtime->dma_area, 0, len);
-	hpi_handle_error(hpi_outstream_write_buf(dpcm->h_stream,
-				runtime->dma_area, len, &dpcm->format));
+	/* Usually writes silence to DMA buffer, which should be overwritten
+	by real audio later.  Our fifos cannot be overwritten, and are not
+	free-running DMAs. Silence is output on fifo underflow.
+	This callback is still required to allow the copy callback to be used.
+	*/
 	return 0;
 }
 
@@ -1110,7 +1098,7 @@ snd_card_asihpi_capture_pointer(struct snd_pcm_substream *substream)
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
 
-	VPRINTK2(KERN_INFO "capture pointer %d=%d\n",
+	snd_printddd("capture pointer %d=%d\n",
 			substream->number, dpcm->pcm_buf_dma_ofs);
 	/* NOTE Unlike playback can't use actual samples_played
 		for the capture position, because those samples aren't yet in
@@ -1135,7 +1123,7 @@ static int snd_card_asihpi_capture_prepare(struct snd_pcm_substream *substream)
 	dpcm->pcm_buf_dma_ofs = 0;
 	dpcm->pcm_buf_elapsed_dma_ofs = 0;
 
-	VPRINTK1("Capture Prepare %d\n", substream->number);
+	snd_printdd("Capture Prepare %d\n", substream->number);
 	return 0;
 }
 
@@ -1198,7 +1186,7 @@ static int snd_card_asihpi_capture_open(struct snd_pcm_substream *substream)
 	if (dpcm == NULL)
 		return -ENOMEM;
 
-	VPRINTK1("hpi_instream_open adapter %d stream %d\n",
+	snd_printdd("capture open adapter %d stream %d\n",
 		   card->adapter_index, substream->number);
 
 	err = hpi_handle_error(
@@ -1268,7 +1256,7 @@ static int snd_card_asihpi_capture_copy(struct snd_pcm_substream *substream,
 
 	len = frames_to_bytes(runtime, count);
 
-	VPRINTK2(KERN_INFO "capture copy%d %d bytes\n", substream->number, len);
+	snd_printddd("capture copy%d %d bytes\n", substream->number, len);
 	hpi_handle_error(hpi_instream_read_buf(dpcm->h_stream,
 				runtime->dma_area, len));
 
@@ -2887,6 +2875,9 @@ static int __devinit snd_asihpi_probe(struct pci_dev *pci_dev,
 	if (err)
 		asihpi->update_interval_frames = 512;
 
+	if (!asihpi->support_mmap)
+		asihpi->update_interval_frames *= 2;
+
 	hpi_handle_error(hpi_instream_open(asihpi->adapter_index,
 			     0, &h_stream));
 
@@ -2909,7 +2900,6 @@ static int __devinit snd_asihpi_probe(struct pci_dev *pci_dev,
 			asihpi->support_mrx
 	      );
 
-
 	err = snd_card_asihpi_pcm_new(asihpi, 0, pcm_substreams);
 	if (err < 0) {
 		snd_printk(KERN_ERR "pcm_new failed\n");
@@ -2944,6 +2934,7 @@ static int __devinit snd_asihpi_probe(struct pci_dev *pci_dev,
 	sprintf(card->longname, "%s %i",
 			card->shortname, asihpi->adapter_index);
 	err = snd_card_register(card);
+
 	if (!err) {
 		hpi_card->snd_card_asihpi = card;
 		dev++;
diff --git a/sound/pci/asihpi/hpi.h b/sound/pci/asihpi/hpi.h
index 6fc025c448de..255429c32c1c 100644
--- a/sound/pci/asihpi/hpi.h
+++ b/sound/pci/asihpi/hpi.h
@@ -725,7 +725,7 @@ enum HPI_AESEBU_ERRORS {
 #define HPI_PAD_TITLE_LEN               64
 /** The text string containing the comment. */
 #define HPI_PAD_COMMENT_LEN             256
-/** The PTY when the tuner has not recieved any PTY. */
+/** The PTY when the tuner has not received any PTY. */
 #define HPI_PAD_PROGRAM_TYPE_INVALID    0xffff
 /** \} */
 
diff --git a/sound/pci/asihpi/hpi6000.c b/sound/pci/asihpi/hpi6000.c
index 3e3c2ef6efd8..8c8aac4c567e 100644
--- a/sound/pci/asihpi/hpi6000.c
+++ b/sound/pci/asihpi/hpi6000.c
@@ -423,7 +423,7 @@ static void subsys_create_adapter(struct hpi_message *phm,
 
 	ao.priv = kzalloc(sizeof(struct hpi_hw_obj), GFP_KERNEL);
 	if (!ao.priv) {
-		HPI_DEBUG_LOG(ERROR, "cant get mem for adapter object\n");
+		HPI_DEBUG_LOG(ERROR, "can't get mem for adapter object\n");
 		phr->error = HPI_ERROR_MEMORY_ALLOC;
 		return;
 	}
diff --git a/sound/pci/asihpi/hpi6205.c b/sound/pci/asihpi/hpi6205.c
index 620525bdac59..22e9f08dea6d 100644
--- a/sound/pci/asihpi/hpi6205.c
+++ b/sound/pci/asihpi/hpi6205.c
@@ -466,7 +466,7 @@ static void subsys_create_adapter(struct hpi_message *phm,
 
 	ao.priv = kzalloc(sizeof(struct hpi_hw_obj), GFP_KERNEL);
 	if (!ao.priv) {
-		HPI_DEBUG_LOG(ERROR, "cant get mem for adapter object\n");
+		HPI_DEBUG_LOG(ERROR, "can't get mem for adapter object\n");
 		phr->error = HPI_ERROR_MEMORY_ALLOC;
 		return;
 	}
diff --git a/sound/pci/asihpi/hpi_internal.h b/sound/pci/asihpi/hpi_internal.h
index af678be0aa15..3b9fd115da36 100644
--- a/sound/pci/asihpi/hpi_internal.h
+++ b/sound/pci/asihpi/hpi_internal.h
@@ -607,7 +607,7 @@ struct hpi_data_compat32 {
 #endif
 
 struct hpi_buffer {
-  /** placehoder for backward compatability (see dwBufferSize) */
+  /** placehoder for backward compatibility (see dwBufferSize) */
 	struct hpi_msg_format reserved;
 	u32 command; /**< HPI_BUFFER_CMD_xxx*/
 	u32 pci_address; /**< PCI physical address of buffer for DSP DMA */
diff --git a/sound/pci/asihpi/hpimsgx.c b/sound/pci/asihpi/hpimsgx.c
index bcbdf30a6aa0..360028b9abf5 100644
--- a/sound/pci/asihpi/hpimsgx.c
+++ b/sound/pci/asihpi/hpimsgx.c
@@ -722,7 +722,7 @@ static u16 HPIMSGX__init(struct hpi_message *phm,
 		return phr->error;
 	}
 	if (hr.error == 0) {
-		/* the adapter was created succesfully
+		/* the adapter was created successfully
 		   save the mapping for future use */
 		hpi_entry_points[hr.u.s.adapter_index] = entry_point_func;
 		/* prepare adapter (pre-open streams etc.) */
diff --git a/sound/pci/au88x0/au88x0.h b/sound/pci/au88x0/au88x0.h
index ecb8f4daf408..02f6e08f7592 100644
--- a/sound/pci/au88x0/au88x0.h
+++ b/sound/pci/au88x0/au88x0.h
@@ -104,7 +104,7 @@
 #define MIX_PLAYB(x) (vortex->mixplayb[x])
 #define MIX_SPDIF(x) (vortex->mixspdif[x])
 
-#define NR_WTPB 0x20		/* WT channels per eahc bank. */
+#define NR_WTPB 0x20		/* WT channels per each bank. */
 
 /* Structs */
 typedef struct {
diff --git a/sound/pci/au88x0/au88x0_a3d.c b/sound/pci/au88x0/au88x0_a3d.c
index f4aa8ff6f5f9..9ae8b3b17651 100644
--- a/sound/pci/au88x0/au88x0_a3d.c
+++ b/sound/pci/au88x0/au88x0_a3d.c
@@ -53,7 +53,7 @@ a3dsrc_GetTimeConsts(a3dsrc_t * a, short *HrtfTrack, short *ItdTrack,
 }
 
 #endif
-/* Atmospheric absorbtion. */
+/* Atmospheric absorption. */
 
 static void
 a3dsrc_SetAtmosTarget(a3dsrc_t * a, short aa, short b, short c, short d,
@@ -835,7 +835,7 @@ snd_vortex_a3d_filter_put(struct snd_kcontrol *kcontrol,
 		params[i] = ucontrol->value.integer.value[i];
 	/* Translate generic filter params to a3d filter params. */
 	vortex_a3d_translate_filter(a->filter, params);
-	/* Atmospheric absorbtion and filtering. */
+	/* Atmospheric absorption and filtering. */
 	a3dsrc_SetAtmosTarget(a, a->filter[0],
 			      a->filter[1], a->filter[2],
 			      a->filter[3], a->filter[4]);
diff --git a/sound/pci/au88x0/au88x0_pcm.c b/sound/pci/au88x0/au88x0_pcm.c
index 5439d662d104..33f0ba5559a7 100644
--- a/sound/pci/au88x0/au88x0_pcm.c
+++ b/sound/pci/au88x0/au88x0_pcm.c
@@ -515,7 +515,7 @@ static int __devinit snd_vortex_new_pcm(vortex_t *chip, int idx, int nr)
 		return -ENODEV;
 
 	/* idx indicates which kind of PCM device. ADB, SPDIF, I2S and A3D share the 
-	 * same dma engine. WT uses it own separate dma engine whcih cant capture. */
+	 * same dma engine. WT uses it own separate dma engine which can't capture. */
 	if (idx == VORTEX_PCM_ADB)
 		nr_capt = nr;
 	else
diff --git a/sound/pci/azt3328.c b/sound/pci/azt3328.c
index 5715c4d05573..9b7a6346037a 100644
--- a/sound/pci/azt3328.c
+++ b/sound/pci/azt3328.c
@@ -140,7 +140,7 @@
  *  Possible remedies:
  *  - use speaker (amplifier) output instead of headphone output
  *    (in case crackling is due to overloaded output clipping)
- *  - plug card into a different PCI slot, preferrably one that isn't shared
+ *  - plug card into a different PCI slot, preferably one that isn't shared
  *    too much (this helps a lot, but not completely!)
  *  - get rid of PCI VGA card, use AGP instead
  *  - upgrade or downgrade BIOS
diff --git a/sound/pci/ca0106/ca0106.h b/sound/pci/ca0106/ca0106.h
index fc53b9bca26d..e8e8ccc96403 100644
--- a/sound/pci/ca0106/ca0106.h
+++ b/sound/pci/ca0106/ca0106.h
@@ -51,7 +51,7 @@
  *    Add support for mute control on SB Live 24bit (cards w/ SPI DAC)
  *
  *
- *  This code was initally based on code from ALSA's emu10k1x.c which is:
+ *  This code was initially based on code from ALSA's emu10k1x.c which is:
  *  Copyright (c) by Francisco Moraes <fmoraes@nc.rr.com>
  *
  *   This program is free software; you can redistribute it and/or modify
@@ -175,7 +175,7 @@
 /* CA0106 pointer-offset register set, accessed through the PTR and DATA registers                     */
 /********************************************************************************************************/
                                                                                                                            
-/* Initally all registers from 0x00 to 0x3f have zero contents. */
+/* Initially all registers from 0x00 to 0x3f have zero contents. */
 #define PLAYBACK_LIST_ADDR	0x00		/* Base DMA address of a list of pointers to each period/size */
 						/* One list entry: 4 bytes for DMA address, 
 						 * 4 bytes for period_size << 16.
@@ -223,7 +223,7 @@
  * The jack has 4 poles. I will call 1 - Tip, 2 - Next to 1, 3 - Next to 2, 4 - Next to 3
  * For Analogue: 1 -> Center Speaker, 2 -> Sub Woofer, 3 -> Ground, 4 -> Ground
  * For Digital: 1 -> Front SPDIF, 2 -> Rear SPDIF, 3 -> Center/Subwoofer SPDIF, 4 -> Ground.
- * Standard 4 pole Video A/V cable with RCA outputs: 1 -> White, 2 -> Yellow, 3 -> Sheild on all three, 4 -> Red.
+ * Standard 4 pole Video A/V cable with RCA outputs: 1 -> White, 2 -> Yellow, 3 -> Shield on all three, 4 -> Red.
  * So, from this you can see that you cannot use a Standard 4 pole Video A/V cable with the SB Audigy LS card.
  */
 /* The Front SPDIF PCM gets mixed with samples from the AC97 codec, so can only work for Stereo PCM and not AC3/DTS
diff --git a/sound/pci/ca0106/ca0106_main.c b/sound/pci/ca0106/ca0106_main.c
index 01b49388fafd..437759239694 100644
--- a/sound/pci/ca0106/ca0106_main.c
+++ b/sound/pci/ca0106/ca0106_main.c
@@ -117,7 +117,7 @@
  *    DAC: Unknown
  *    Trying to handle it like the SB0410.
  *
- *  This code was initally based on code from ALSA's emu10k1x.c which is:
+ *  This code was initially based on code from ALSA's emu10k1x.c which is:
  *  Copyright (c) by Francisco Moraes <fmoraes@nc.rr.com>
  *
  *   This program is free software; you can redistribute it and/or modify
diff --git a/sound/pci/ca0106/ca0106_mixer.c b/sound/pci/ca0106/ca0106_mixer.c
index 630aa4998189..84f3f92436b5 100644
--- a/sound/pci/ca0106/ca0106_mixer.c
+++ b/sound/pci/ca0106/ca0106_mixer.c
@@ -42,7 +42,7 @@
  *  0.0.18
  *    Add support for mute control on SB Live 24bit (cards w/ SPI DAC)
  *
- *  This code was initally based on code from ALSA's emu10k1x.c which is:
+ *  This code was initially based on code from ALSA's emu10k1x.c which is:
  *  Copyright (c) by Francisco Moraes <fmoraes@nc.rr.com>
  *
  *   This program is free software; you can redistribute it and/or modify
diff --git a/sound/pci/ca0106/ca0106_proc.c b/sound/pci/ca0106/ca0106_proc.c
index ba96428c9f4c..c694464b1168 100644
--- a/sound/pci/ca0106/ca0106_proc.c
+++ b/sound/pci/ca0106/ca0106_proc.c
@@ -42,7 +42,7 @@
  *  0.0.18
  *    Implement support for Line-in capture on SB Live 24bit.
  *
- *  This code was initally based on code from ALSA's emu10k1x.c which is:
+ *  This code was initially based on code from ALSA's emu10k1x.c which is:
  *  Copyright (c) by Francisco Moraes <fmoraes@nc.rr.com>
  *
  *   This program is free software; you can redistribute it and/or modify
diff --git a/sound/pci/cmipci.c b/sound/pci/cmipci.c
index b5bb036ef73c..f4e573555da3 100644
--- a/sound/pci/cmipci.c
+++ b/sound/pci/cmipci.c
@@ -73,7 +73,7 @@ MODULE_PARM_DESC(mpu_port, "MPU-401 port.");
 module_param_array(fm_port, long, NULL, 0444);
 MODULE_PARM_DESC(fm_port, "FM port.");
 module_param_array(soft_ac3, bool, NULL, 0444);
-MODULE_PARM_DESC(soft_ac3, "Sofware-conversion of raw SPDIF packets (model 033 only).");
+MODULE_PARM_DESC(soft_ac3, "Software-conversion of raw SPDIF packets (model 033 only).");
 #ifdef SUPPORT_JOYSTICK
 module_param_array(joystick_port, int, NULL, 0444);
 MODULE_PARM_DESC(joystick_port, "Joystick port address.");
@@ -656,8 +656,8 @@ out:
 }
 
 /*
- * Program pll register bits, I assume that the 8 registers 0xf8 upto 0xff
- * are mapped onto the 8 ADC/DAC sampling frequency which can be choosen
+ * Program pll register bits, I assume that the 8 registers 0xf8 up to 0xff
+ * are mapped onto the 8 ADC/DAC sampling frequency which can be chosen
  * at the register CM_REG_FUNCTRL1 (0x04).
  * Problem: other ways are also possible (any information about that?)
  */
@@ -666,7 +666,7 @@ static void snd_cmipci_set_pll(struct cmipci *cm, unsigned int rate, unsigned in
 	unsigned int reg = CM_REG_PLL + slot;
 	/*
 	 * Guess that this programs at reg. 0x04 the pos 15:13/12:10
-	 * for DSFC/ASFC (000 upto 111).
+	 * for DSFC/ASFC (000 up to 111).
 	 */
 
 	/* FIXME: Init (Do we've to set an other register first before programming?) */
diff --git a/sound/pci/ctxfi/ctatc.c b/sound/pci/ctxfi/ctatc.c
index b9321544c31c..13f33c0719d3 100644
--- a/sound/pci/ctxfi/ctatc.c
+++ b/sound/pci/ctxfi/ctatc.c
@@ -1627,7 +1627,7 @@ static struct ct_atc atc_preset __devinitdata = {
  *  Creates and initializes a hardware manager.
  *
  *  Creates kmallocated ct_atc structure. Initializes hardware.
- *  Returns 0 if suceeds, or negative error code if fails.
+ *  Returns 0 if succeeds, or negative error code if fails.
  */
 
 int __devinit ct_atc_create(struct snd_card *card, struct pci_dev *pci,
diff --git a/sound/pci/ctxfi/cthw20k1.c b/sound/pci/ctxfi/cthw20k1.c
index 0cf400f879f9..a5c957db5cea 100644
--- a/sound/pci/ctxfi/cthw20k1.c
+++ b/sound/pci/ctxfi/cthw20k1.c
@@ -1285,7 +1285,7 @@ static int hw_trn_init(struct hw *hw, const struct trn_conf *info)
 	hw_write_20kx(hw, PTPALX, ptp_phys_low);
 	hw_write_20kx(hw, PTPAHX, ptp_phys_high);
 	hw_write_20kx(hw, TRNCTL, trnctl);
-	hw_write_20kx(hw, TRNIS, 0x200c01); /* realy needed? */
+	hw_write_20kx(hw, TRNIS, 0x200c01); /* really needed? */
 
 	return 0;
 }
diff --git a/sound/pci/emu10k1/memory.c b/sound/pci/emu10k1/memory.c
index 957a311514c8..c250614dadd0 100644
--- a/sound/pci/emu10k1/memory.c
+++ b/sound/pci/emu10k1/memory.c
@@ -248,7 +248,7 @@ static int is_valid_page(struct snd_emu10k1 *emu, dma_addr_t addr)
 /*
  * map the given memory block on PTB.
  * if the block is already mapped, update the link order.
- * if no empty pages are found, tries to release unsed memory blocks
+ * if no empty pages are found, tries to release unused memory blocks
  * and retry the mapping.
  */
 int snd_emu10k1_memblk_map(struct snd_emu10k1 *emu, struct snd_emu10k1_memblk *blk)
diff --git a/sound/pci/emu10k1/p16v.c b/sound/pci/emu10k1/p16v.c
index 61b8ab39800f..a81dc44228ea 100644
--- a/sound/pci/emu10k1/p16v.c
+++ b/sound/pci/emu10k1/p16v.c
@@ -69,7 +69,7 @@
  *    ADC: Philips 1361T (Stereo 24bit)
  *    DAC: CS4382-K (8-channel, 24bit, 192Khz)
  *
- *  This code was initally based on code from ALSA's emu10k1x.c which is:
+ *  This code was initially based on code from ALSA's emu10k1x.c which is:
  *  Copyright (c) by Francisco Moraes <fmoraes@nc.rr.com>
  *
  *   This program is free software; you can redistribute it and/or modify
diff --git a/sound/pci/emu10k1/p16v.h b/sound/pci/emu10k1/p16v.h
index 00f4817533b1..4e0ee1a9747a 100644
--- a/sound/pci/emu10k1/p16v.h
+++ b/sound/pci/emu10k1/p16v.h
@@ -59,7 +59,7 @@
  *    ADC: Philips 1361T (Stereo 24bit)
  *    DAC: CS4382-K (8-channel, 24bit, 192Khz)
  *
- *  This code was initally based on code from ALSA's emu10k1x.c which is:
+ *  This code was initially based on code from ALSA's emu10k1x.c which is:
  *  Copyright (c) by Francisco Moraes <fmoraes@nc.rr.com>
  *
  *   This program is free software; you can redistribute it and/or modify
@@ -86,7 +86,7 @@
  * The sample rate is also controlled by the same registers that control the rate of the EMU10K2 sample rate converters.
  */
 
-/* Initally all registers from 0x00 to 0x3f have zero contents. */
+/* Initially all registers from 0x00 to 0x3f have zero contents. */
 #define PLAYBACK_LIST_ADDR	0x00		/* Base DMA address of a list of pointers to each period/size */
 						/* One list entry: 4 bytes for DMA address, 
 						 * 4 bytes for period_size << 16.
diff --git a/sound/pci/ens1370.c b/sound/pci/ens1370.c
index 537cfba829a5..863eafea691f 100644
--- a/sound/pci/ens1370.c
+++ b/sound/pci/ens1370.c
@@ -229,6 +229,7 @@ MODULE_PARM_DESC(lineio, "Line In to Rear Out (0 = auto, 1 = force).");
 #define ES_REG_1371_CODEC 0x14	/* W/R: Codec Read/Write register address */
 #define   ES_1371_CODEC_RDY	   (1<<31)	/* codec ready */
 #define   ES_1371_CODEC_WIP	   (1<<30)	/* codec register access in progress */
+#define   EV_1938_CODEC_MAGIC	   (1<<26)
 #define   ES_1371_CODEC_PIRD	   (1<<23)	/* codec read/write select register */
 #define   ES_1371_CODEC_WRITE(a,d) ((((a)&0x7f)<<16)|(((d)&0xffff)<<0))
 #define   ES_1371_CODEC_READS(a)   ((((a)&0x7f)<<16)|ES_1371_CODEC_PIRD)
@@ -603,12 +604,18 @@ static void snd_es1370_codec_write(struct snd_ak4531 *ak4531,
 
 #ifdef CHIP1371
 
+static inline bool is_ev1938(struct ensoniq *ensoniq)
+{
+	return ensoniq->pci->device == 0x8938;
+}
+
 static void snd_es1371_codec_write(struct snd_ac97 *ac97,
 				   unsigned short reg, unsigned short val)
 {
 	struct ensoniq *ensoniq = ac97->private_data;
-	unsigned int t, x;
+	unsigned int t, x, flag;
 
+	flag = is_ev1938(ensoniq) ? EV_1938_CODEC_MAGIC : 0;
 	mutex_lock(&ensoniq->src_mutex);
 	for (t = 0; t < POLL_COUNT; t++) {
 		if (!(inl(ES_REG(ensoniq, 1371_CODEC)) & ES_1371_CODEC_WIP)) {
@@ -630,7 +637,8 @@ static void snd_es1371_codec_write(struct snd_ac97 *ac97,
 				    0x00010000)
 					break;
 			}
-			outl(ES_1371_CODEC_WRITE(reg, val), ES_REG(ensoniq, 1371_CODEC));
+			outl(ES_1371_CODEC_WRITE(reg, val) | flag,
+			     ES_REG(ensoniq, 1371_CODEC));
 			/* restore SRC reg */
 			snd_es1371_wait_src_ready(ensoniq);
 			outl(x, ES_REG(ensoniq, 1371_SMPRATE));
@@ -647,8 +655,9 @@ static unsigned short snd_es1371_codec_read(struct snd_ac97 *ac97,
 					    unsigned short reg)
 {
 	struct ensoniq *ensoniq = ac97->private_data;
-	unsigned int t, x, fail = 0;
+	unsigned int t, x, flag, fail = 0;
 
+	flag = is_ev1938(ensoniq) ? EV_1938_CODEC_MAGIC : 0;
       __again:
 	mutex_lock(&ensoniq->src_mutex);
 	for (t = 0; t < POLL_COUNT; t++) {
@@ -671,7 +680,8 @@ static unsigned short snd_es1371_codec_read(struct snd_ac97 *ac97,
 				    0x00010000)
 					break;
 			}
-			outl(ES_1371_CODEC_READS(reg), ES_REG(ensoniq, 1371_CODEC));
+			outl(ES_1371_CODEC_READS(reg) | flag,
+			     ES_REG(ensoniq, 1371_CODEC));
 			/* restore SRC reg */
 			snd_es1371_wait_src_ready(ensoniq);
 			outl(x, ES_REG(ensoniq, 1371_SMPRATE));
@@ -683,6 +693,11 @@ static unsigned short snd_es1371_codec_read(struct snd_ac97 *ac97,
 			/* now wait for the stinkin' data (RDY) */
 			for (t = 0; t < POLL_COUNT; t++) {
 				if ((x = inl(ES_REG(ensoniq, 1371_CODEC))) & ES_1371_CODEC_RDY) {
+					if (is_ev1938(ensoniq)) {
+						for (t = 0; t < 100; t++)
+							inl(ES_REG(ensoniq, CONTROL));
+						x = inl(ES_REG(ensoniq, 1371_CODEC));
+					}
 					mutex_unlock(&ensoniq->src_mutex);
 					return ES_1371_CODEC_READ(x);
 				}
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index 2c79e96d0324..430f41db6044 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -3661,7 +3661,7 @@ int snd_hda_codec_build_pcms(struct hda_codec *codec)
  * with the proper parameters for set up.
  * ops.cleanup should be called in hw_free for clean up of streams.
  *
- * This function returns 0 if successfull, or a negative error code.
+ * This function returns 0 if successful, or a negative error code.
  */
 int __devinit snd_hda_build_pcms(struct hda_bus *bus)
 {
@@ -4851,7 +4851,7 @@ EXPORT_SYMBOL_HDA(snd_hda_suspend);
  *
  * Returns 0 if successful.
  *
- * This fucntion is defined only when POWER_SAVE isn't set.
+ * This function is defined only when POWER_SAVE isn't set.
  * In the power-save mode, the codec is resumed dynamically.
  */
 int snd_hda_resume(struct hda_bus *bus)
diff --git a/sound/pci/hda/patch_analog.c b/sound/pci/hda/patch_analog.c
index 734c6ee55d8a..2942d2a9ea10 100644
--- a/sound/pci/hda/patch_analog.c
+++ b/sound/pci/hda/patch_analog.c
@@ -4256,6 +4256,84 @@ static int ad1984a_thinkpad_init(struct hda_codec *codec)
 }
 
 /*
+ * Precision R5500
+ * 0x12 - HP/line-out
+ * 0x13 - speaker (mono)
+ * 0x15 - mic-in
+ */
+
+static struct hda_verb ad1984a_precision_verbs[] = {
+	/* Unmute main output path */
+	{0x03, AC_VERB_SET_AMP_GAIN_MUTE, 0x27}, /* 0dB */
+	{0x21, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE + 0x1f}, /* 0dB */
+	{0x20, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_UNMUTE(5) + 0x17}, /* 0dB */
+	/* Analog mixer; mute as default */
+	{0x20, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_MUTE(0)},
+	{0x20, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_MUTE(1)},
+	{0x20, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_MUTE(2)},
+	{0x20, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_MUTE(3)},
+	{0x20, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_MUTE(4)},
+	/* Select mic as input */
+	{0x0c, AC_VERB_SET_CONNECT_SEL, 0x1},
+	{0x0c, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE + 0x27}, /* 0dB */
+	/* Configure as mic */
+	{0x15, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_VREF80},
+	{0x15, AC_VERB_SET_AMP_GAIN_MUTE, 0x7002}, /* raise mic as default */
+	/* HP unmute */
+	{0x12, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE},
+	/* turn on EAPD */
+	{0x13, AC_VERB_SET_EAPD_BTLENABLE, 0x02},
+	/* unsolicited event for pin-sense */
+	{0x12, AC_VERB_SET_UNSOLICITED_ENABLE, AC_USRSP_EN | AD1884A_HP_EVENT},
+	{ } /* end */
+};
+
+static struct snd_kcontrol_new ad1984a_precision_mixers[] = {
+	HDA_CODEC_VOLUME("Master Playback Volume", 0x21, 0x0, HDA_OUTPUT),
+	HDA_CODEC_MUTE("Master Playback Switch", 0x21, 0x0, HDA_OUTPUT),
+	HDA_CODEC_VOLUME("PCM Playback Volume", 0x20, 0x5, HDA_INPUT),
+	HDA_CODEC_MUTE("PCM Playback Switch", 0x20, 0x5, HDA_INPUT),
+	HDA_CODEC_VOLUME("Mic Playback Volume", 0x20, 0x01, HDA_INPUT),
+	HDA_CODEC_MUTE("Mic Playback Switch", 0x20, 0x01, HDA_INPUT),
+	HDA_CODEC_VOLUME("Mic Boost Volume", 0x15, 0x0, HDA_INPUT),
+	HDA_CODEC_MUTE("Front Playback Switch", 0x12, 0x0, HDA_OUTPUT),
+	HDA_CODEC_VOLUME("Speaker Playback Volume", 0x13, 0x0, HDA_OUTPUT),
+	HDA_CODEC_VOLUME("Capture Volume", 0x0c, 0x0, HDA_OUTPUT),
+	HDA_CODEC_MUTE("Capture Switch", 0x0c, 0x0, HDA_OUTPUT),
+	{ } /* end */
+};
+
+
+/* mute internal speaker if HP is plugged */
+static void ad1984a_precision_automute(struct hda_codec *codec)
+{
+	unsigned int present;
+
+	present = snd_hda_jack_detect(codec, 0x12);
+	snd_hda_codec_amp_stereo(codec, 0x13, HDA_OUTPUT, 0,
+				 HDA_AMP_MUTE, present ? HDA_AMP_MUTE : 0);
+}
+
+
+/* unsolicited event for HP jack sensing */
+static void ad1984a_precision_unsol_event(struct hda_codec *codec,
+					 unsigned int res)
+{
+	if ((res >> 26) != AD1884A_HP_EVENT)
+		return;
+	ad1984a_precision_automute(codec);
+}
+
+/* initialize jack-sensing, too */
+static int ad1984a_precision_init(struct hda_codec *codec)
+{
+	ad198x_init(codec);
+	ad1984a_precision_automute(codec);
+	return 0;
+}
+
+
+/*
  * HP Touchsmart
  * port-A (0x11)      - front hp-out
  * port-B (0x14)      - unused
@@ -4384,6 +4462,7 @@ enum {
 	AD1884A_MOBILE,
 	AD1884A_THINKPAD,
 	AD1984A_TOUCHSMART,
+	AD1984A_PRECISION,
 	AD1884A_MODELS
 };
 
@@ -4393,9 +4472,11 @@ static const char * const ad1884a_models[AD1884A_MODELS] = {
 	[AD1884A_MOBILE]	= "mobile",
 	[AD1884A_THINKPAD]	= "thinkpad",
 	[AD1984A_TOUCHSMART]	= "touchsmart",
+	[AD1984A_PRECISION]	= "precision",
 };
 
 static struct snd_pci_quirk ad1884a_cfg_tbl[] = {
+	SND_PCI_QUIRK(0x1028, 0x04ac, "Precision R5500", AD1984A_PRECISION),
 	SND_PCI_QUIRK(0x103c, 0x3030, "HP", AD1884A_MOBILE),
 	SND_PCI_QUIRK(0x103c, 0x3037, "HP 2230s", AD1884A_LAPTOP),
 	SND_PCI_QUIRK(0x103c, 0x3056, "HP", AD1884A_MOBILE),
@@ -4489,6 +4570,14 @@ static int patch_ad1884a(struct hda_codec *codec)
 		codec->patch_ops.unsol_event = ad1984a_thinkpad_unsol_event;
 		codec->patch_ops.init = ad1984a_thinkpad_init;
 		break;
+	case AD1984A_PRECISION:
+		spec->mixers[0] = ad1984a_precision_mixers;
+		spec->init_verbs[spec->num_init_verbs++] =
+			ad1984a_precision_verbs;
+		spec->multiout.dig_out_nid = 0;
+		codec->patch_ops.unsol_event = ad1984a_precision_unsol_event;
+		codec->patch_ops.init = ad1984a_precision_init;
+		break;
 	case AD1984A_TOUCHSMART:
 		spec->mixers[0] = ad1984a_touchsmart_mixers;
 		spec->init_verbs[0] = ad1984a_touchsmart_verbs;
diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c
index d08cf31596f3..69e33869a53e 100644
--- a/sound/pci/hda/patch_conexant.c
+++ b/sound/pci/hda/patch_conexant.c
@@ -3034,6 +3034,7 @@ static struct snd_pci_quirk cxt5066_cfg_tbl[] = {
 	SND_PCI_QUIRK(0x17aa, 0x21c5, "Thinkpad Edge 13", CXT5066_THINKPAD),
 	SND_PCI_QUIRK(0x17aa, 0x21c6, "Thinkpad Edge 13", CXT5066_ASUS),
  	SND_PCI_QUIRK(0x17aa, 0x215e, "Lenovo Thinkpad", CXT5066_THINKPAD),
+	SND_PCI_QUIRK(0x17aa, 0x21da, "Lenovo X220", CXT5066_THINKPAD),
 	SND_PCI_QUIRK(0x17aa, 0x38af, "Lenovo G560", CXT5066_ASUS),
 	SND_PCI_QUIRK_VENDOR(0x17aa, "Lenovo", CXT5066_IDEAPAD), /* Fallback for Lenovos without dock mic */
 	{}
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 5d582de91c19..7e28a64884f6 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -549,7 +549,7 @@ static int alc_ch_mode_put(struct snd_kcontrol *kcontrol,
 
 /*
  * Control the mode of pin widget settings via the mixer.  "pc" is used
- * instead of "%" to avoid consequences of accidently treating the % as
+ * instead of "%" to avoid consequences of accidentally treating the % as
  * being part of a format specifier.  Maximum allowed length of a value is
  * 63 characters plus NULL terminator.
  *
@@ -1290,7 +1290,7 @@ static void alc_auto_init_amp(struct hda_codec *codec, int type)
 		case 0x10ec0883:
 		case 0x10ec0885:
 		case 0x10ec0887:
-		case 0x10ec0889:
+		/*case 0x10ec0889:*/ /* this causes an SPDIF problem */
 			alc889_coef_init(codec);
 			break;
 		case 0x10ec0888:
@@ -9836,7 +9836,7 @@ static struct snd_pci_quirk alc882_cfg_tbl[] = {
 
 	SND_PCI_QUIRK(0x1028, 0x020d, "Dell Inspiron 530", ALC888_6ST_DELL),
 
-	SND_PCI_QUIRK(0x103c, 0x2a3d, "HP Pavillion", ALC883_6ST_DIG),
+	SND_PCI_QUIRK(0x103c, 0x2a3d, "HP Pavilion", ALC883_6ST_DIG),
 	SND_PCI_QUIRK(0x103c, 0x2a4f, "HP Samba", ALC888_3ST_HP),
 	SND_PCI_QUIRK(0x103c, 0x2a60, "HP Lucknow", ALC888_3ST_HP),
 	SND_PCI_QUIRK(0x103c, 0x2a61, "HP Nettle", ALC883_6ST_DIG),
@@ -9863,7 +9863,6 @@ static struct snd_pci_quirk alc882_cfg_tbl[] = {
 	SND_PCI_QUIRK(0x1071, 0x8258, "Evesham Voyaeger", ALC883_LAPTOP_EAPD),
 	SND_PCI_QUIRK(0x10f1, 0x2350, "TYAN-S2350", ALC888_6ST_DELL),
 	SND_PCI_QUIRK(0x108e, 0x534d, NULL, ALC883_3ST_6ch),
-	SND_PCI_QUIRK(0x1458, 0xa002, "Gigabyte P35 DS3R", ALC882_6ST_DIG),
 
 	SND_PCI_QUIRK(0x1462, 0x0349, "MSI", ALC883_TARGA_2ch_DIG),
 	SND_PCI_QUIRK(0x1462, 0x040d, "MSI", ALC883_TARGA_2ch_DIG),
@@ -10700,6 +10699,7 @@ enum {
 	PINFIX_LENOVO_Y530,
 	PINFIX_PB_M5210,
 	PINFIX_ACER_ASPIRE_7736,
+	PINFIX_GIGABYTE_880GM,
 };
 
 static const struct alc_fixup alc882_fixups[] = {
@@ -10731,6 +10731,13 @@ static const struct alc_fixup alc882_fixups[] = {
 		.type = ALC_FIXUP_SKU,
 		.v.sku = ALC_FIXUP_SKU_IGNORE,
 	},
+	[PINFIX_GIGABYTE_880GM] = {
+		.type = ALC_FIXUP_PINS,
+		.v.pins = (const struct alc_pincfg[]) {
+			{ 0x14, 0x1114410 }, /* set as speaker */
+			{ }
+		}
+	},
 };
 
 static struct snd_pci_quirk alc882_fixup_tbl[] = {
@@ -10738,6 +10745,7 @@ static struct snd_pci_quirk alc882_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x17aa, 0x3a0d, "Lenovo Y530", PINFIX_LENOVO_Y530),
 	SND_PCI_QUIRK(0x147b, 0x107a, "Abit AW9D-MAX", PINFIX_ABIT_AW9D_MAX),
 	SND_PCI_QUIRK(0x1025, 0x0296, "Acer Aspire 7736z", PINFIX_ACER_ASPIRE_7736),
+	SND_PCI_QUIRK(0x1458, 0xa002, "Gigabyte", PINFIX_GIGABYTE_880GM),
 	{}
 };
 
@@ -18774,8 +18782,6 @@ static struct snd_pci_quirk alc662_cfg_tbl[] = {
 		      ALC662_3ST_6ch_DIG),
 	SND_PCI_QUIRK(0x1179, 0xff6e, "Toshiba NB20x", ALC662_AUTO),
 	SND_PCI_QUIRK(0x144d, 0xca00, "Samsung NC10", ALC272_SAMSUNG_NC10),
-	SND_PCI_QUIRK(0x1458, 0xa002, "Gigabyte 945GCM-S2L",
-		      ALC662_3ST_6ch_DIG),
 	SND_PCI_QUIRK(0x152d, 0x2304, "Quanta WH1", ALC663_ASUS_H13),
 	SND_PCI_QUIRK(0x1565, 0x820f, "Biostar TA780G M2+", ALC662_3ST_6ch_DIG),
 	SND_PCI_QUIRK(0x1631, 0xc10c, "PB RS65", ALC663_ASUS_M51VA),
@@ -19449,6 +19455,7 @@ enum {
 	ALC662_FIXUP_IDEAPAD,
 	ALC272_FIXUP_MARIO,
 	ALC662_FIXUP_CZC_P10T,
+	ALC662_FIXUP_GIGABYTE,
 };
 
 static const struct alc_fixup alc662_fixups[] = {
@@ -19477,12 +19484,20 @@ static const struct alc_fixup alc662_fixups[] = {
 			{}
 		}
 	},
+	[ALC662_FIXUP_GIGABYTE] = {
+		.type = ALC_FIXUP_PINS,
+		.v.pins = (const struct alc_pincfg[]) {
+			{ 0x14, 0x1114410 }, /* set as speaker */
+			{ }
+		}
+	},
 };
 
 static struct snd_pci_quirk alc662_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x1025, 0x0308, "Acer Aspire 8942G", ALC662_FIXUP_ASPIRE),
 	SND_PCI_QUIRK(0x1025, 0x038b, "Acer Aspire 8943G", ALC662_FIXUP_ASPIRE),
 	SND_PCI_QUIRK(0x144d, 0xc051, "Samsung R720", ALC662_FIXUP_IDEAPAD),
+	SND_PCI_QUIRK(0x1458, 0xa002, "Gigabyte", ALC662_FIXUP_GIGABYTE),
 	SND_PCI_QUIRK(0x17aa, 0x38af, "Lenovo Ideapad Y550P", ALC662_FIXUP_IDEAPAD),
 	SND_PCI_QUIRK(0x17aa, 0x3a0d, "Lenovo Ideapad Y550", ALC662_FIXUP_IDEAPAD),
 	SND_PCI_QUIRK(0x1b35, 0x2206, "CZC P10T", ALC662_FIXUP_CZC_P10T),
diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index 05fcd60cc46f..1395991c39f2 100644
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -2475,7 +2475,7 @@ static int stac92xx_hp_switch_put(struct snd_kcontrol *kcontrol,
  
 	spec->hp_switch = ucontrol->value.integer.value[0] ? nid : 0;
 
-	/* check to be sure that the ports are upto date with
+	/* check to be sure that the ports are up to date with
 	 * switch changes
 	 */
 	stac_issue_unsol_event(codec, nid);
diff --git a/sound/pci/ice1712/aureon.c b/sound/pci/ice1712/aureon.c
index 2f6252266a02..3e4f8c12ffce 100644
--- a/sound/pci/ice1712/aureon.c
+++ b/sound/pci/ice1712/aureon.c
@@ -148,7 +148,7 @@ static void aureon_pca9554_write(struct snd_ice1712 *ice, unsigned char reg,
 	udelay(100);
 	/*
 	 * send device address, command and value,
-	 * skipping ack cycles inbetween
+	 * skipping ack cycles in between
 	 */
 	for (j = 0; j < 3; j++) {
 		switch (j) {
@@ -2143,7 +2143,7 @@ static int __devinit aureon_init(struct snd_ice1712 *ice)
 		ice->num_total_adcs = 2;
 	}
 
-	/* to remeber the register values of CS8415 */
+	/* to remember the register values of CS8415 */
 	ice->akm = kzalloc(sizeof(struct snd_akm4xxx), GFP_KERNEL);
 	if (!ice->akm)
 		return -ENOMEM;
diff --git a/sound/pci/ice1712/ice1712.c b/sound/pci/ice1712/ice1712.c
index 4fc6d8bc637e..f4594d76b6ea 100644
--- a/sound/pci/ice1712/ice1712.c
+++ b/sound/pci/ice1712/ice1712.c
@@ -2755,7 +2755,7 @@ static int __devinit snd_ice1712_probe(struct pci_dev *pci,
 			return err;
 		}
 		if (c->mpu401_1_name)
-			/*  Prefered name available in card_info */
+			/*  Preferred name available in card_info */
 			snprintf(ice->rmidi[0]->name,
 				 sizeof(ice->rmidi[0]->name),
 				 "%s %d", c->mpu401_1_name, card->number);
@@ -2772,7 +2772,7 @@ static int __devinit snd_ice1712_probe(struct pci_dev *pci,
 				return err;
 			}
 			if (c->mpu401_2_name)
-				/*  Prefered name available in card_info */
+				/*  Preferred name available in card_info */
 				snprintf(ice->rmidi[1]->name,
 					 sizeof(ice->rmidi[1]->name),
 					 "%s %d", c->mpu401_2_name,
diff --git a/sound/pci/ice1712/pontis.c b/sound/pci/ice1712/pontis.c
index cdb873f5da50..92c1160d7ab5 100644
--- a/sound/pci/ice1712/pontis.c
+++ b/sound/pci/ice1712/pontis.c
@@ -768,7 +768,7 @@ static int __devinit pontis_init(struct snd_ice1712 *ice)
 	ice->num_total_dacs = 2;
 	ice->num_total_adcs = 2;
 
-	/* to remeber the register values */
+	/* to remember the register values */
 	ice->akm = kzalloc(sizeof(struct snd_akm4xxx), GFP_KERNEL);
 	if (! ice->akm)
 		return -ENOMEM;
diff --git a/sound/pci/ice1712/prodigy_hifi.c b/sound/pci/ice1712/prodigy_hifi.c
index 6a9fee3ee78f..764cc93dbca4 100644
--- a/sound/pci/ice1712/prodigy_hifi.c
+++ b/sound/pci/ice1712/prodigy_hifi.c
@@ -1046,7 +1046,7 @@ static int __devinit prodigy_hifi_init(struct snd_ice1712 *ice)
 	* don't call snd_ice1712_gpio_get/put(), otherwise it's overwritten
 	*/
 	ice->gpio.saved[0] = 0;
-	/* to remeber the register values */
+	/* to remember the register values */
 
 	ice->akm = kzalloc(sizeof(struct snd_akm4xxx), GFP_KERNEL);
 	if (! ice->akm)
@@ -1128,7 +1128,7 @@ static int __devinit prodigy_hd2_init(struct snd_ice1712 *ice)
 	* don't call snd_ice1712_gpio_get/put(), otherwise it's overwritten
 	*/
 	ice->gpio.saved[0] = 0;
-	/* to remeber the register values */
+	/* to remember the register values */
 
 	ice->akm = kzalloc(sizeof(struct snd_akm4xxx), GFP_KERNEL);
 	if (! ice->akm)
diff --git a/sound/pci/intel8x0.c b/sound/pci/intel8x0.c
index 629a5494347a..6c896dbfd796 100644
--- a/sound/pci/intel8x0.c
+++ b/sound/pci/intel8x0.c
@@ -534,7 +534,7 @@ static int snd_intel8x0_codec_semaphore(struct intel8x0 *chip, unsigned int code
 		udelay(10);
 	} while (time--);
 
-	/* access to some forbidden (non existant) ac97 registers will not
+	/* access to some forbidden (non existent) ac97 registers will not
 	 * reset the semaphore. So even if you don't get the semaphore, still
 	 * continue the access. We don't need the semaphore anyway. */
 	snd_printk(KERN_ERR "codec_semaphore: semaphore is not ready [0x%x][0x%x]\n",
diff --git a/sound/pci/intel8x0m.c b/sound/pci/intel8x0m.c
index 2ae8d29500a8..27709f0cd2a6 100644
--- a/sound/pci/intel8x0m.c
+++ b/sound/pci/intel8x0m.c
@@ -331,7 +331,7 @@ static int snd_intel8x0m_codec_semaphore(struct intel8x0m *chip, unsigned int co
 		udelay(10);
 	} while (time--);
 
-	/* access to some forbidden (non existant) ac97 registers will not
+	/* access to some forbidden (non existent) ac97 registers will not
 	 * reset the semaphore. So even if you don't get the semaphore, still
 	 * continue the access. We don't need the semaphore anyway. */
 	snd_printk(KERN_ERR "codec_semaphore: semaphore is not ready [0x%x][0x%x]\n",
diff --git a/sound/pci/mixart/mixart_core.c b/sound/pci/mixart/mixart_core.c
index d3350f383966..3df0f530f67c 100644
--- a/sound/pci/mixart/mixart_core.c
+++ b/sound/pci/mixart/mixart_core.c
@@ -265,7 +265,7 @@ int snd_mixart_send_msg(struct mixart_mgr *mgr, struct mixart_msg *request, int
 	if (! timeout) {
 		/* error - no ack */
 		mutex_unlock(&mgr->msg_mutex);
-		snd_printk(KERN_ERR "error: no reponse on msg %x\n", msg_frame);
+		snd_printk(KERN_ERR "error: no response on msg %x\n", msg_frame);
 		return -EIO;
 	}
 
@@ -278,7 +278,7 @@ int snd_mixart_send_msg(struct mixart_mgr *mgr, struct mixart_msg *request, int
 	err = get_msg(mgr, &resp, msg_frame);
 
 	if( request->message_id != resp.message_id )
-		snd_printk(KERN_ERR "REPONSE ERROR!\n");
+		snd_printk(KERN_ERR "RESPONSE ERROR!\n");
 
 	mutex_unlock(&mgr->msg_mutex);
 	return err;
diff --git a/sound/pci/pcxhr/pcxhr_core.c b/sound/pci/pcxhr/pcxhr_core.c
index 833e7180ad2d..304411c1fe4b 100644
--- a/sound/pci/pcxhr/pcxhr_core.c
+++ b/sound/pci/pcxhr/pcxhr_core.c
@@ -1042,11 +1042,11 @@ void pcxhr_msg_tasklet(unsigned long arg)
 	int i, j;
 
 	if (mgr->src_it_dsp & PCXHR_IRQ_FREQ_CHANGE)
-		snd_printdd("TASKLET : PCXHR_IRQ_FREQ_CHANGE event occured\n");
+		snd_printdd("TASKLET : PCXHR_IRQ_FREQ_CHANGE event occurred\n");
 	if (mgr->src_it_dsp & PCXHR_IRQ_TIME_CODE)
-		snd_printdd("TASKLET : PCXHR_IRQ_TIME_CODE event occured\n");
+		snd_printdd("TASKLET : PCXHR_IRQ_TIME_CODE event occurred\n");
 	if (mgr->src_it_dsp & PCXHR_IRQ_NOTIFY)
-		snd_printdd("TASKLET : PCXHR_IRQ_NOTIFY event occured\n");
+		snd_printdd("TASKLET : PCXHR_IRQ_NOTIFY event occurred\n");
 	if (mgr->src_it_dsp & (PCXHR_IRQ_FREQ_CHANGE | PCXHR_IRQ_TIME_CODE)) {
 		/* clear events FREQ_CHANGE and TIME_CODE */
 		pcxhr_init_rmh(prmh, CMD_TEST_IT);
@@ -1055,7 +1055,7 @@ void pcxhr_msg_tasklet(unsigned long arg)
 			    err, prmh->stat[0]);
 	}
 	if (mgr->src_it_dsp & PCXHR_IRQ_ASYNC) {
-		snd_printdd("TASKLET : PCXHR_IRQ_ASYNC event occured\n");
+		snd_printdd("TASKLET : PCXHR_IRQ_ASYNC event occurred\n");
 
 		pcxhr_init_rmh(prmh, CMD_ASYNC);
 		prmh->cmd[0] |= 1;	/* add SEL_ASYNC_EVENTS */
@@ -1233,7 +1233,7 @@ irqreturn_t pcxhr_interrupt(int irq, void *dev_id)
 	reg = PCXHR_INPL(mgr, PCXHR_PLX_L2PCIDB);
 	PCXHR_OUTPL(mgr, PCXHR_PLX_L2PCIDB, reg);
 
-	/* timer irq occured */
+	/* timer irq occurred */
 	if (reg & PCXHR_IRQ_TIMER) {
 		int timer_toggle = reg & PCXHR_IRQ_TIMER;
 		/* is a 24 bit counter */
@@ -1288,7 +1288,7 @@ irqreturn_t pcxhr_interrupt(int irq, void *dev_id)
 	if (reg & PCXHR_IRQ_MASK) {
 		if (reg & PCXHR_IRQ_ASYNC) {
 			/* as we didn't request any async notifications,
-			 * some kind of xrun error will probably occured
+			 * some kind of xrun error will probably occurred
 			 */
 			/* better resynchronize all streams next interrupt : */
 			mgr->dsp_time_last = PCXHR_DSP_TIME_INVALID;
diff --git a/sound/pci/rme96.c b/sound/pci/rme96.c
index d5f5b440fc40..9ff247fc8871 100644
--- a/sound/pci/rme96.c
+++ b/sound/pci/rme96.c
@@ -150,7 +150,7 @@ MODULE_PARM_DESC(enable, "Enable RME Digi96 soundcard.");
 #define RME96_RCR_BITPOS_F1 28
 #define RME96_RCR_BITPOS_F2 29
 
-/* Additonal register bits */
+/* Additional register bits */
 #define RME96_AR_WSEL       (1 << 0)
 #define RME96_AR_ANALOG     (1 << 1)
 #define RME96_AR_FREQPAD_0  (1 << 2)
diff --git a/sound/pci/rme9652/hdspm.c b/sound/pci/rme9652/hdspm.c
index a323eafb9e03..949691a876d3 100644
--- a/sound/pci/rme9652/hdspm.c
+++ b/sound/pci/rme9652/hdspm.c
@@ -391,7 +391,7 @@ MODULE_SUPPORTED_DEVICE("{{RME HDSPM-MADI}}");
 
 /* Status2 Register bits */ /* MADI ONLY */
 
-#define HDSPM_version0 (1<<0)	/* not realy defined but I guess */
+#define HDSPM_version0 (1<<0)	/* not really defined but I guess */
 #define HDSPM_version1 (1<<1)	/* in former cards it was ??? */
 #define HDSPM_version2 (1<<2)
 
@@ -936,7 +936,7 @@ struct hdspm {
 	struct snd_kcontrol *playback_mixer_ctls[HDSPM_MAX_CHANNELS];
 	/* but input to much, so not used */
 	struct snd_kcontrol *input_mixer_ctls[HDSPM_MAX_CHANNELS];
-	/* full mixer accessable over mixer ioctl or hwdep-device */
+	/* full mixer accessible over mixer ioctl or hwdep-device */
 	struct hdspm_mixer *mixer;
 
 	struct hdspm_tco *tco;  /* NULL if no TCO detected */
diff --git a/sound/pci/sis7019.c b/sound/pci/sis7019.c
index 1b8f6742b5fa..2b5c7a95ae1f 100644
--- a/sound/pci/sis7019.c
+++ b/sound/pci/sis7019.c
@@ -308,7 +308,7 @@ static irqreturn_t sis_interrupt(int irq, void *dev)
 	u32 intr, status;
 
 	/* We only use the DMA interrupts, and we don't enable any other
-	 * source of interrupts. But, it is possible to see an interupt
+	 * source of interrupts. But, it is possible to see an interrupt
 	 * status that didn't actually interrupt us, so eliminate anything
 	 * we're not expecting to avoid falsely claiming an IRQ, and an
 	 * ensuing endless loop.
@@ -773,7 +773,7 @@ static void sis_prepare_timing_voice(struct voice *voice,
 		vperiod = 0;
 	}
 
-	/* The interrupt handler implements the timing syncronization, so
+	/* The interrupt handler implements the timing synchronization, so
 	 * setup its state.
 	 */
 	timing->flags |= VOICE_SYNC_TIMING;
@@ -1139,7 +1139,7 @@ static int sis_chip_init(struct sis7019 *sis)
 	 */
 	outl(SIS_DMA_CSR_PCI_SETTINGS, io + SIS_DMA_CSR);
 
-	/* Reset the syncronization groups for all of the channels
+	/* Reset the synchronization groups for all of the channels
 	 * to be asyncronous. If we start doing SPDIF or 5.1 sound, etc.
 	 * we'll need to change how we handle these. Until then, we just
 	 * assign sub-mixer 0 to all playback channels, and avoid any
diff --git a/sound/ppc/snd_ps3.c b/sound/ppc/snd_ps3.c
index edce8a27e3ee..bc823a547550 100644
--- a/sound/ppc/snd_ps3.c
+++ b/sound/ppc/snd_ps3.c
@@ -358,7 +358,7 @@ static irqreturn_t snd_ps3_interrupt(int irq, void *dev_id)
 		 * filling dummy data, serial automatically start to
 		 * consume them and then will generate normal buffer
 		 * empty interrupts.
-		 * If both buffer underflow and buffer empty are occured,
+		 * If both buffer underflow and buffer empty are occurred,
 		 * it is better to do nomal data transfer than empty one
 		 */
 		snd_ps3_program_dma(card,
diff --git a/sound/ppc/snd_ps3_reg.h b/sound/ppc/snd_ps3_reg.h
index 03fdee4aaaf2..2e6302079566 100644
--- a/sound/ppc/snd_ps3_reg.h
+++ b/sound/ppc/snd_ps3_reg.h
@@ -125,7 +125,7 @@
    transfers.  Any interrupts associated with the canceled transfers
    will occur as if the transfer had finished.
    Since this bit is designed to recover from DMA related issues
-   which are caused by unpredictable situations, it is prefered to wait
+   which are caused by unpredictable situations, it is preferred to wait
    for normal DMA transfer end without using this bit.
 */
 #define PS3_AUDIO_CONFIG_CLEAR          (1 << 8)  /* RWIVF */
@@ -316,13 +316,13 @@ DISABLED=Interrupt generation disabled.
 
 /*
 Audio Port Interrupt Status Register
-Indicates Interrupt status, which interrupt has occured, and can clear
+Indicates Interrupt status, which interrupt has occurred, and can clear
 each interrupt in this register.
 Writing 1b to a field containing 1b clears field and de-asserts interrupt.
 Writing 0b to a field has no effect.
 Field vaules are the following:
-0 - Interrupt hasn't occured.
-1 - Interrupt has occured.
+0 - Interrupt hasn't occurred.
+1 - Interrupt has occurred.
 
 
  31            24 23           16 15            8 7             0
@@ -473,7 +473,7 @@ Channel N is out of action by setting 0 to asoen.
 /*
 Sampling Rate
 Specifies the divide ratio of the bit clock (clock output
-from bclko) used by the 3-wire Audio Output Clock, whcih
+from bclko) used by the 3-wire Audio Output Clock, which
 is applied to the master clock selected by mcksel.
 Data output is synchronized with this clock.
 */
@@ -756,7 +756,7 @@ The STATUS field can be used to monitor the progress of a DMA request.
 DONE indicates the previous request has completed.
 EVENT indicates that the DMA engine is waiting for the EVENT to occur.
 PENDING indicates that the DMA engine has not started processing this
-request, but the EVENT has occured.
+request, but the EVENT has occurred.
 DMA indicates that the data transfer is in progress.
 NOTIFY indicates that the notifier signalling end of transfer is being written.
 CLEAR indicated that the previous transfer was cleared.
@@ -824,7 +824,7 @@ AUDIOFIFO = Audio WriteData FIFO,
 
 /*
 PS3_AUDIO_DMASIZE specifies the number of 128-byte blocks + 1 to transfer.
-So a value of 0 means 128-bytes will get transfered.
+So a value of 0 means 128-bytes will get transferred.
 
 
  31            24 23           16 15            8 7             0
diff --git a/sound/soc/atmel/atmel_ssc_dai.c b/sound/soc/atmel/atmel_ssc_dai.c
index 5d230cee3fa7..7fbfa051f6e1 100644
--- a/sound/soc/atmel/atmel_ssc_dai.c
+++ b/sound/soc/atmel/atmel_ssc_dai.c
@@ -672,7 +672,7 @@ static int atmel_ssc_resume(struct snd_soc_dai *cpu_dai)
 	/* re-enable interrupts */
 	ssc_writel(ssc_p->ssc->regs, IER, ssc_p->ssc_state.ssc_imr);
 
-	/* Re-enable recieve and transmit as appropriate */
+	/* Re-enable receive and transmit as appropriate */
 	cr = 0;
 	cr |=
 	    (ssc_p->ssc_state.ssc_sr & SSC_BIT(SR_RXEN)) ? SSC_BIT(CR_RXEN) : 0;
diff --git a/sound/soc/codecs/alc5623.c b/sound/soc/codecs/alc5623.c
index 4f377c9e868d..eecffb548947 100644
--- a/sound/soc/codecs/alc5623.c
+++ b/sound/soc/codecs/alc5623.c
@@ -481,7 +481,7 @@ struct _pll_div {
 };
 
 /* Note : pll code from original alc5623 driver. Not sure of how good it is */
-/* usefull only for master mode */
+/* useful only for master mode */
 static const struct _pll_div codec_master_pll_div[] = {
 
 	{  2048000,  8192000,	0x0ea0},
diff --git a/sound/soc/codecs/lm4857.c b/sound/soc/codecs/lm4857.c
index 72de47e5d040..2c2a681da0d7 100644
--- a/sound/soc/codecs/lm4857.c
+++ b/sound/soc/codecs/lm4857.c
@@ -161,7 +161,7 @@ static const struct snd_kcontrol_new lm4857_controls[] = {
 		lm4857_get_mode, lm4857_set_mode),
 };
 
-/* There is a demux inbetween the the input signal and the output signals.
+/* There is a demux between the input signal and the output signals.
  * Currently there is no easy way to model it in ASoC and since it does not make
  * much of a difference in practice simply connect the input direclty to the
  * outputs. */
diff --git a/sound/soc/codecs/sn95031.c b/sound/soc/codecs/sn95031.c
index 2a30eae1881c..a54d2a5b28f6 100644
--- a/sound/soc/codecs/sn95031.c
+++ b/sound/soc/codecs/sn95031.c
@@ -26,7 +26,9 @@
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
 #include <linux/platform_device.h>
+#include <linux/delay.h>
 #include <linux/slab.h>
+
 #include <asm/intel_scu_ipc.h>
 #include <sound/pcm.h>
 #include <sound/pcm_params.h>
diff --git a/sound/soc/codecs/tlv320aic26.h b/sound/soc/codecs/tlv320aic26.h
index 62b1f2261429..67f19c3bebe6 100644
--- a/sound/soc/codecs/tlv320aic26.h
+++ b/sound/soc/codecs/tlv320aic26.h
@@ -14,14 +14,14 @@
 #define AIC26_PAGE_ADDR(page, offset)	((page << 6) | offset)
 #define AIC26_NUM_REGS			AIC26_PAGE_ADDR(3, 0)
 
-/* Page 0: Auxillary data registers */
+/* Page 0: Auxiliary data registers */
 #define AIC26_REG_BAT1			AIC26_PAGE_ADDR(0, 0x05)
 #define AIC26_REG_BAT2			AIC26_PAGE_ADDR(0, 0x06)
 #define AIC26_REG_AUX			AIC26_PAGE_ADDR(0, 0x07)
 #define AIC26_REG_TEMP1			AIC26_PAGE_ADDR(0, 0x09)
 #define AIC26_REG_TEMP2			AIC26_PAGE_ADDR(0, 0x0A)
 
-/* Page 1: Auxillary control registers */
+/* Page 1: Auxiliary control registers */
 #define AIC26_REG_AUX_ADC		AIC26_PAGE_ADDR(1, 0x00)
 #define AIC26_REG_STATUS		AIC26_PAGE_ADDR(1, 0x01)
 #define AIC26_REG_REFERENCE		AIC26_PAGE_ADDR(1, 0x03)
diff --git a/sound/soc/codecs/tlv320aic3x.c b/sound/soc/codecs/tlv320aic3x.c
index 3bedab26892f..6c43c13f0430 100644
--- a/sound/soc/codecs/tlv320aic3x.c
+++ b/sound/soc/codecs/tlv320aic3x.c
@@ -884,7 +884,7 @@ static int aic3x_hw_params(struct snd_pcm_substream *substream,
 	if (bypass_pll)
 		return 0;
 
-	/* Use PLL, compute apropriate setup for j, d, r and p, the closest
+	/* Use PLL, compute appropriate setup for j, d, r and p, the closest
 	 * one wins the game. Try with d==0 first, next with d!=0.
 	 * Constraints for j are according to the datasheet.
 	 * The sysclk is divided by 1000 to prevent integer overflows.
diff --git a/sound/soc/codecs/tlv320dac33.c b/sound/soc/codecs/tlv320dac33.c
index 00b6d87e7bdb..082e9d51963f 100644
--- a/sound/soc/codecs/tlv320dac33.c
+++ b/sound/soc/codecs/tlv320dac33.c
@@ -324,6 +324,10 @@ static void dac33_init_chip(struct snd_soc_codec *codec)
 	dac33_write(codec, DAC33_OUT_AMP_CTRL,
 		    dac33_read_reg_cache(codec, DAC33_OUT_AMP_CTRL));
 
+	dac33_write(codec, DAC33_LDAC_PWR_CTRL,
+		    dac33_read_reg_cache(codec, DAC33_LDAC_PWR_CTRL));
+	dac33_write(codec, DAC33_RDAC_PWR_CTRL,
+		    dac33_read_reg_cache(codec, DAC33_RDAC_PWR_CTRL));
 }
 
 static inline int dac33_read_id(struct snd_soc_codec *codec)
@@ -670,6 +674,7 @@ static inline void dac33_prefill_handler(struct tlv320dac33_priv *dac33)
 {
 	struct snd_soc_codec *codec = dac33->codec;
 	unsigned int delay;
+	unsigned long flags;
 
 	switch (dac33->fifo_mode) {
 	case DAC33_FIFO_MODE1:
@@ -677,10 +682,10 @@ static inline void dac33_prefill_handler(struct tlv320dac33_priv *dac33)
 			DAC33_THRREG(dac33->nsample));
 
 		/* Take the timestamps */
-		spin_lock_irq(&dac33->lock);
+		spin_lock_irqsave(&dac33->lock, flags);
 		dac33->t_stamp2 = ktime_to_us(ktime_get());
 		dac33->t_stamp1 = dac33->t_stamp2;
-		spin_unlock_irq(&dac33->lock);
+		spin_unlock_irqrestore(&dac33->lock, flags);
 
 		dac33_write16(codec, DAC33_PREFILL_MSB,
 				DAC33_THRREG(dac33->alarm_threshold));
@@ -692,11 +697,11 @@ static inline void dac33_prefill_handler(struct tlv320dac33_priv *dac33)
 		break;
 	case DAC33_FIFO_MODE7:
 		/* Take the timestamp */
-		spin_lock_irq(&dac33->lock);
+		spin_lock_irqsave(&dac33->lock, flags);
 		dac33->t_stamp1 = ktime_to_us(ktime_get());
 		/* Move back the timestamp with drain time */
 		dac33->t_stamp1 -= dac33->mode7_us_to_lthr;
-		spin_unlock_irq(&dac33->lock);
+		spin_unlock_irqrestore(&dac33->lock, flags);
 
 		dac33_write16(codec, DAC33_PREFILL_MSB,
 				DAC33_THRREG(DAC33_MODE7_MARGIN));
@@ -714,13 +719,14 @@ static inline void dac33_prefill_handler(struct tlv320dac33_priv *dac33)
 static inline void dac33_playback_handler(struct tlv320dac33_priv *dac33)
 {
 	struct snd_soc_codec *codec = dac33->codec;
+	unsigned long flags;
 
 	switch (dac33->fifo_mode) {
 	case DAC33_FIFO_MODE1:
 		/* Take the timestamp */
-		spin_lock_irq(&dac33->lock);
+		spin_lock_irqsave(&dac33->lock, flags);
 		dac33->t_stamp2 = ktime_to_us(ktime_get());
-		spin_unlock_irq(&dac33->lock);
+		spin_unlock_irqrestore(&dac33->lock, flags);
 
 		dac33_write16(codec, DAC33_NSAMPLE_MSB,
 				DAC33_THRREG(dac33->nsample));
@@ -773,10 +779,11 @@ static irqreturn_t dac33_interrupt_handler(int irq, void *dev)
 {
 	struct snd_soc_codec *codec = dev;
 	struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec);
+	unsigned long flags;
 
-	spin_lock(&dac33->lock);
+	spin_lock_irqsave(&dac33->lock, flags);
 	dac33->t_stamp1 = ktime_to_us(ktime_get());
-	spin_unlock(&dac33->lock);
+	spin_unlock_irqrestore(&dac33->lock, flags);
 
 	/* Do not schedule the workqueue in Mode7 */
 	if (dac33->fifo_mode != DAC33_FIFO_MODE7)
@@ -1020,7 +1027,7 @@ static int dac33_prepare_chip(struct snd_pcm_substream *substream)
 		/*
 		 * For FIFO bypass mode:
 		 * Enable the FIFO bypass (Disable the FIFO use)
-		 * Set the BCLK as continous
+		 * Set the BCLK as continuous
 		 */
 		fifoctrl_a |= DAC33_FBYPAS;
 		aictrl_b |= DAC33_BCLKON;
@@ -1173,15 +1180,16 @@ static snd_pcm_sframes_t dac33_dai_delay(
 	unsigned int time_delta, uthr;
 	int samples_out, samples_in, samples;
 	snd_pcm_sframes_t delay = 0;
+	unsigned long flags;
 
 	switch (dac33->fifo_mode) {
 	case DAC33_FIFO_BYPASS:
 		break;
 	case DAC33_FIFO_MODE1:
-		spin_lock(&dac33->lock);
+		spin_lock_irqsave(&dac33->lock, flags);
 		t0 = dac33->t_stamp1;
 		t1 = dac33->t_stamp2;
-		spin_unlock(&dac33->lock);
+		spin_unlock_irqrestore(&dac33->lock, flags);
 		t_now = ktime_to_us(ktime_get());
 
 		/* We have not started to fill the FIFO yet, delay is 0 */
@@ -1246,10 +1254,10 @@ static snd_pcm_sframes_t dac33_dai_delay(
 		}
 		break;
 	case DAC33_FIFO_MODE7:
-		spin_lock(&dac33->lock);
+		spin_lock_irqsave(&dac33->lock, flags);
 		t0 = dac33->t_stamp1;
 		uthr = dac33->uthr;
-		spin_unlock(&dac33->lock);
+		spin_unlock_irqrestore(&dac33->lock, flags);
 		t_now = ktime_to_us(ktime_get());
 
 		/* We have not started to fill the FIFO yet, delay is 0 */
diff --git a/sound/soc/codecs/twl4030.c b/sound/soc/codecs/twl4030.c
index 8512800f6326..575238d68e5e 100644
--- a/sound/soc/codecs/twl4030.c
+++ b/sound/soc/codecs/twl4030.c
@@ -281,7 +281,7 @@ static inline void twl4030_check_defaults(struct snd_soc_codec *codec)
 				 i, val, twl4030_reg[i]);
 		}
 	}
-	dev_dbg(codec->dev, "Found %d non maching registers. %s\n",
+	dev_dbg(codec->dev, "Found %d non-matching registers. %s\n",
 		 difference, difference ? "Not OK" : "OK");
 }
 
@@ -2018,7 +2018,7 @@ static int twl4030_voice_startup(struct snd_pcm_substream *substream,
 	u8 mode;
 
 	/* If the system master clock is not 26MHz, the voice PCM interface is
-	 * not avilable.
+	 * not available.
 	 */
 	if (twl4030->sysclk != 26000) {
 		dev_err(codec->dev, "The board is configured for %u Hz, while"
@@ -2028,7 +2028,7 @@ static int twl4030_voice_startup(struct snd_pcm_substream *substream,
 	}
 
 	/* If the codec mode is not option2, the voice PCM interface is not
-	 * avilable.
+	 * available.
 	 */
 	mode = twl4030_read_reg_cache(codec, TWL4030_REG_CODEC_MODE)
 		& TWL4030_OPT_MODE;
diff --git a/sound/soc/codecs/twl6040.c b/sound/soc/codecs/twl6040.c
index 482fcdb59bfa..255901c4460d 100644
--- a/sound/soc/codecs/twl6040.c
+++ b/sound/soc/codecs/twl6040.c
@@ -1629,8 +1629,10 @@ static int twl6040_probe(struct snd_soc_codec *codec)
 	priv->naudint = naudint;
 	priv->workqueue = create_singlethread_workqueue("twl6040-codec");
 
-	if (!priv->workqueue)
+	if (!priv->workqueue) {
+		ret = -ENOMEM;
 		goto work_err;
+	}
 
 	INIT_DELAYED_WORK(&priv->delayed_work, twl6040_accessory_work);
 
diff --git a/sound/soc/codecs/wm8580.c b/sound/soc/codecs/wm8580.c
index 8f6b5ee6645b..4bbc0a79f01e 100644
--- a/sound/soc/codecs/wm8580.c
+++ b/sound/soc/codecs/wm8580.c
@@ -772,7 +772,7 @@ static int wm8580_set_bias_level(struct snd_soc_codec *codec,
 			reg &= ~(WM8580_PWRDN1_PWDN | WM8580_PWRDN1_ALLDACPD);
 			snd_soc_write(codec, WM8580_PWRDN1, reg);
 
-			/* Make VMID high impedence */
+			/* Make VMID high impedance */
 			reg = snd_soc_read(codec,  WM8580_ADC_CONTROL1);
 			reg &= ~0x100;
 			snd_soc_write(codec, WM8580_ADC_CONTROL1, reg);
diff --git a/sound/soc/codecs/wm8753.c b/sound/soc/codecs/wm8753.c
index 3f09deea8d9d..ffa2ffe5ec11 100644
--- a/sound/soc/codecs/wm8753.c
+++ b/sound/soc/codecs/wm8753.c
@@ -1312,7 +1312,7 @@ static int wm8753_set_bias_level(struct snd_soc_codec *codec,
 	SNDRV_PCM_FMTBIT_S24_LE)
 
 /*
- * The WM8753 supports upto 4 different and mutually exclusive DAI
+ * The WM8753 supports up to 4 different and mutually exclusive DAI
  * configurations. This gives 2 PCM's available for use, hifi and voice.
  * NOTE: The Voice PCM cannot play or capture audio to the CPU as it's DAI
  * is connected between the wm8753 and a BT codec or GSM modem.
diff --git a/sound/soc/codecs/wm8904.c b/sound/soc/codecs/wm8904.c
index 443ae580445c..9b3bba4df5b3 100644
--- a/sound/soc/codecs/wm8904.c
+++ b/sound/soc/codecs/wm8904.c
@@ -1895,7 +1895,7 @@ static int fll_factors(struct _fll_div *fll_div, unsigned int Fref,
 
 	pr_debug("Fvco=%dHz\n", target);
 
-	/* Find an appropraite FLL_FRATIO and factor it out of the target */
+	/* Find an appropriate FLL_FRATIO and factor it out of the target */
 	for (i = 0; i < ARRAY_SIZE(fll_fratios); i++) {
 		if (fll_fratios[i].min <= Fref && Fref <= fll_fratios[i].max) {
 			fll_div->fll_fratio = fll_fratios[i].fll_fratio;
diff --git a/sound/soc/codecs/wm8955.c b/sound/soc/codecs/wm8955.c
index 5e0214d6293e..3c7198779c31 100644
--- a/sound/soc/codecs/wm8955.c
+++ b/sound/soc/codecs/wm8955.c
@@ -176,7 +176,7 @@ static int wm8995_pll_factors(struct device *dev,
 	return 0;
 }
 
-/* Lookup table specifiying SRATE (table 25 in datasheet); some of the
+/* Lookup table specifying SRATE (table 25 in datasheet); some of the
  * output frequencies have been rounded to the standard frequencies
  * they are intended to match where the error is slight. */
 static struct {
diff --git a/sound/soc/codecs/wm8962.c b/sound/soc/codecs/wm8962.c
index 3b71dd65c966..500011eb8b2b 100644
--- a/sound/soc/codecs/wm8962.c
+++ b/sound/soc/codecs/wm8962.c
@@ -3137,7 +3137,7 @@ static int fll_factors(struct _fll_div *fll_div, unsigned int Fref,
 
 	pr_debug("FLL Fvco=%dHz\n", target);
 
-	/* Find an appropraite FLL_FRATIO and factor it out of the target */
+	/* Find an appropriate FLL_FRATIO and factor it out of the target */
 	for (i = 0; i < ARRAY_SIZE(fll_fratios); i++) {
 		if (fll_fratios[i].min <= Fref && Fref <= fll_fratios[i].max) {
 			fll_div->fll_fratio = fll_fratios[i].fll_fratio;
diff --git a/sound/soc/codecs/wm8991.c b/sound/soc/codecs/wm8991.c
index 28fdfd66661d..3c2ee1bb73cd 100644
--- a/sound/soc/codecs/wm8991.c
+++ b/sound/soc/codecs/wm8991.c
@@ -981,7 +981,7 @@ static int wm8991_set_dai_pll(struct snd_soc_dai *codec_dai,
 		reg = snd_soc_read(codec, WM8991_CLOCKING_2);
 		snd_soc_write(codec, WM8991_CLOCKING_2, reg | WM8991_SYSCLK_SRC);
 
-		/* set up N , fractional mode and pre-divisor if neccessary */
+		/* set up N , fractional mode and pre-divisor if necessary */
 		snd_soc_write(codec, WM8991_PLL1, pll_div.n | WM8991_SDM |
 			      (pll_div.div2 ? WM8991_PRESCALE : 0));
 		snd_soc_write(codec, WM8991_PLL2, (u8)(pll_div.k>>8));
diff --git a/sound/soc/codecs/wm8993.c b/sound/soc/codecs/wm8993.c
index 379fa22c5b6c..056aef904347 100644
--- a/sound/soc/codecs/wm8993.c
+++ b/sound/soc/codecs/wm8993.c
@@ -324,7 +324,7 @@ static int fll_factors(struct _fll_div *fll_div, unsigned int Fref,
 
 	pr_debug("Fvco=%dHz\n", target);
 
-	/* Find an appropraite FLL_FRATIO and factor it out of the target */
+	/* Find an appropriate FLL_FRATIO and factor it out of the target */
 	for (i = 0; i < ARRAY_SIZE(fll_fratios); i++) {
 		if (fll_fratios[i].min <= Fref && Fref <= fll_fratios[i].max) {
 			fll_div->fll_fratio = fll_fratios[i].fll_fratio;
diff --git a/sound/soc/codecs/wm8994.c b/sound/soc/codecs/wm8994.c
index 3dc64c8b6a5c..3290333b2bb9 100644
--- a/sound/soc/codecs/wm8994.c
+++ b/sound/soc/codecs/wm8994.c
@@ -82,18 +82,18 @@ struct wm8994_priv {
 
 	int mbc_ena[3];
 
-	/* Platform dependant DRC configuration */
+	/* Platform dependent DRC configuration */
 	const char **drc_texts;
 	int drc_cfg[WM8994_NUM_DRC];
 	struct soc_enum drc_enum;
 
-	/* Platform dependant ReTune mobile configuration */
+	/* Platform dependent ReTune mobile configuration */
 	int num_retune_mobile_texts;
 	const char **retune_mobile_texts;
 	int retune_mobile_cfg[WM8994_NUM_EQ];
 	struct soc_enum retune_mobile_enum;
 
-	/* Platform dependant MBC configuration */
+	/* Platform dependent MBC configuration */
 	int mbc_cfg;
 	const char **mbc_texts;
 	struct soc_enum mbc_enum;
diff --git a/sound/soc/codecs/wm9081.c b/sound/soc/codecs/wm9081.c
index 55cdf2982020..91c6b39de50c 100644
--- a/sound/soc/codecs/wm9081.c
+++ b/sound/soc/codecs/wm9081.c
@@ -305,7 +305,7 @@ static int speaker_mode_get(struct snd_kcontrol *kcontrol,
 /*
  * Stop any attempts to change speaker mode while the speaker is enabled.
  *
- * We also have some special anti-pop controls dependant on speaker
+ * We also have some special anti-pop controls dependent on speaker
  * mode which must be changed along with the mode.
  */
 static int speaker_mode_put(struct snd_kcontrol *kcontrol,
@@ -456,7 +456,7 @@ static int fll_factors(struct _fll_div *fll_div, unsigned int Fref,
 
 	pr_debug("Fvco=%dHz\n", target);
 
-	/* Find an appropraite FLL_FRATIO and factor it out of the target */
+	/* Find an appropriate FLL_FRATIO and factor it out of the target */
 	for (i = 0; i < ARRAY_SIZE(fll_fratios); i++) {
 		if (fll_fratios[i].min <= Fref && Fref <= fll_fratios[i].max) {
 			fll_div->fll_fratio = fll_fratios[i].fll_fratio;
diff --git a/sound/soc/imx/imx-pcm-dma-mx2.c b/sound/soc/imx/imx-pcm-dma-mx2.c
index 671ef8dd524c..aab7765f401a 100644
--- a/sound/soc/imx/imx-pcm-dma-mx2.c
+++ b/sound/soc/imx/imx-pcm-dma-mx2.c
@@ -110,12 +110,12 @@ static int imx_ssi_dma_alloc(struct snd_pcm_substream *substream,
 		slave_config.direction = DMA_TO_DEVICE;
 		slave_config.dst_addr = dma_params->dma_addr;
 		slave_config.dst_addr_width = buswidth;
-		slave_config.dst_maxburst = dma_params->burstsize;
+		slave_config.dst_maxburst = dma_params->burstsize * buswidth;
 	} else {
 		slave_config.direction = DMA_FROM_DEVICE;
 		slave_config.src_addr = dma_params->dma_addr;
 		slave_config.src_addr_width = buswidth;
-		slave_config.src_maxburst = dma_params->burstsize;
+		slave_config.src_maxburst = dma_params->burstsize * buswidth;
 	}
 
 	ret = dmaengine_slave_config(iprtd->dma_chan, &slave_config);
@@ -303,6 +303,11 @@ static struct snd_soc_platform_driver imx_soc_platform_mx2 = {
 
 static int __devinit imx_soc_platform_probe(struct platform_device *pdev)
 {
+	struct imx_ssi *ssi = platform_get_drvdata(pdev);
+
+	ssi->dma_params_tx.burstsize = 6;
+	ssi->dma_params_rx.burstsize = 4;
+
 	return snd_soc_register_platform(&pdev->dev, &imx_soc_platform_mx2);
 }
 
diff --git a/sound/soc/imx/imx-ssi.c b/sound/soc/imx/imx-ssi.c
index bc92ec620004..ac2ded969253 100644
--- a/sound/soc/imx/imx-ssi.c
+++ b/sound/soc/imx/imx-ssi.c
@@ -16,7 +16,7 @@
  * sane processor vendors have a FIFO per AC97 slot, the i.MX has only
  * one FIFO which combines all valid receive slots. We cannot even select
  * which slots we want to receive. The WM9712 with which this driver
- * was developped with always sends GPIO status data in slot 12 which
+ * was developed with always sends GPIO status data in slot 12 which
  * we receive in our (PCM-) data stream. The only chance we have is to
  * manually skip this data in the FIQ handler. With sampling rates different
  * from 48000Hz not every frame has valid receive data, so the ratio
diff --git a/sound/soc/imx/imx-ssi.h b/sound/soc/imx/imx-ssi.h
index a4406a134892..dc8a87530e3e 100644
--- a/sound/soc/imx/imx-ssi.h
+++ b/sound/soc/imx/imx-ssi.h
@@ -234,7 +234,4 @@ void imx_pcm_free(struct snd_pcm *pcm);
  */
 #define IMX_SSI_DMABUF_SIZE	(64 * 1024)
 
-#define DMA_RXFIFO_BURST      0x4
-#define DMA_TXFIFO_BURST      0x6
-
 #endif /* _IMX_SSI_H */
diff --git a/sound/soc/kirkwood/kirkwood-dma.c b/sound/soc/kirkwood/kirkwood-dma.c
index 0fd6a630db01..e13c6ce46328 100644
--- a/sound/soc/kirkwood/kirkwood-dma.c
+++ b/sound/soc/kirkwood/kirkwood-dma.c
@@ -132,7 +132,7 @@ static int kirkwood_dma_open(struct snd_pcm_substream *substream)
 	priv = snd_soc_dai_get_dma_data(cpu_dai, substream);
 	snd_soc_set_runtime_hwparams(substream, &kirkwood_dma_snd_hw);
 
-	/* Ensure that all constraints linked to dma burst are fullfilled */
+	/* Ensure that all constraints linked to dma burst are fulfilled */
 	err = snd_pcm_hw_constraint_minmax(runtime,
 			SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
 			priv->burst * 2,
@@ -170,7 +170,7 @@ static int kirkwood_dma_open(struct snd_pcm_substream *substream)
 
 		/*
 		 * Enable Error interrupts. We're only ack'ing them but
-		 * it's usefull for diagnostics
+		 * it's useful for diagnostics
 		 */
 		writel((unsigned long)-1, priv->io + KIRKWOOD_ERR_MASK);
 	}
diff --git a/sound/soc/mid-x86/sst_platform.c b/sound/soc/mid-x86/sst_platform.c
index ee2c22475a76..b2e9198a983a 100644
--- a/sound/soc/mid-x86/sst_platform.c
+++ b/sound/soc/mid-x86/sst_platform.c
@@ -440,7 +440,7 @@ static int sst_platform_remove(struct platform_device *pdev)
 
 	snd_soc_unregister_dais(&pdev->dev, ARRAY_SIZE(sst_platform_dai));
 	snd_soc_unregister_platform(&pdev->dev);
-	pr_debug("sst_platform_remove sucess\n");
+	pr_debug("sst_platform_remove success\n");
 	return 0;
 }
 
@@ -463,7 +463,7 @@ module_init(sst_soc_platform_init);
 static void __exit sst_soc_platform_exit(void)
 {
 	platform_driver_unregister(&sst_platform_driver);
-	pr_debug("sst_soc_platform_exit sucess\n");
+	pr_debug("sst_soc_platform_exit success\n");
 }
 module_exit(sst_soc_platform_exit);
 
diff --git a/sound/soc/omap/ams-delta.c b/sound/soc/omap/ams-delta.c
index 3167be689621..462cbcbea74a 100644
--- a/sound/soc/omap/ams-delta.c
+++ b/sound/soc/omap/ams-delta.c
@@ -248,7 +248,7 @@ static struct snd_soc_jack_pin ams_delta_hook_switch_pins[] = {
  */
 
 /* To actually apply any modem controlled configuration changes to the codec,
- * we must connect codec DAI pins to the modem for a moment.  Be carefull not
+ * we must connect codec DAI pins to the modem for a moment.  Be careful not
  * to interfere with our digital mute function that shares the same hardware. */
 static struct timer_list cx81801_timer;
 static bool cx81801_cmd_pending;
@@ -402,9 +402,9 @@ static struct tty_ldisc_ops cx81801_ops = {
 
 
 /*
- * Even if not very usefull, the sound card can still work without any of the
+ * Even if not very useful, the sound card can still work without any of the
  * above functonality activated.  You can still control its audio input/output
- * constellation and speakerphone gain from userspace by issueing AT commands
+ * constellation and speakerphone gain from userspace by issuing AT commands
  * over the modem port.
  */
 
diff --git a/sound/soc/pxa/corgi.c b/sound/soc/pxa/corgi.c
index 784cff5f67e8..9027da466cae 100644
--- a/sound/soc/pxa/corgi.c
+++ b/sound/soc/pxa/corgi.c
@@ -310,7 +310,7 @@ static struct snd_soc_dai_link corgi_dai = {
 	.cpu_dai_name = "pxa2xx-i2s",
 	.codec_dai_name = "wm8731-hifi",
 	.platform_name = "pxa-pcm-audio",
-	.codec_name = "wm8731-codec-0.001b",
+	.codec_name = "wm8731-codec.0-001b",
 	.init = corgi_wm8731_init,
 	.ops = &corgi_ops,
 };
diff --git a/sound/soc/samsung/neo1973_wm8753.c b/sound/soc/samsung/neo1973_wm8753.c
index 78bfdb3f5d7e..452230975632 100644
--- a/sound/soc/samsung/neo1973_wm8753.c
+++ b/sound/soc/samsung/neo1973_wm8753.c
@@ -228,7 +228,7 @@ static const struct snd_kcontrol_new neo1973_wm8753_controls[] = {
 	SOC_DAPM_PIN_SWITCH("Handset Mic"),
 };
 
-/* GTA02 specific routes and controlls */
+/* GTA02 specific routes and controls */
 
 #ifdef CONFIG_MACH_NEO1973_GTA02
 
@@ -372,7 +372,7 @@ static int neo1973_wm8753_init(struct snd_soc_pcm_runtime *rtd)
 	return 0;
 }
 
-/* GTA01 specific controlls */
+/* GTA01 specific controls */
 
 #ifdef CONFIG_MACH_NEO1973_GTA01
 
diff --git a/sound/soc/soc-jack.c b/sound/soc/soc-jack.c
index fcab80b36a37..fc017c0a7b5d 100644
--- a/sound/soc/soc-jack.c
+++ b/sound/soc/soc-jack.c
@@ -331,7 +331,7 @@ int snd_soc_jack_add_gpios(struct snd_soc_jack *jack, int count,
 			goto err;
 
 		if (gpios[i].wake) {
-			ret = set_irq_wake(gpio_to_irq(gpios[i].gpio), 1);
+			ret = irq_set_irq_wake(gpio_to_irq(gpios[i].gpio), 1);
 			if (ret != 0)
 				printk(KERN_ERR
 				  "Failed to mark GPIO %d as wake source: %d\n",
diff --git a/sound/usb/6fire/firmware.c b/sound/usb/6fire/firmware.c
index 9081a54a9c6c..86c1a3103760 100644
--- a/sound/usb/6fire/firmware.c
+++ b/sound/usb/6fire/firmware.c
@@ -76,7 +76,7 @@ struct ihex_record {
 	u16 address;
 	u8 len;
 	u8 data[256];
-	char error; /* true if an error occured parsing this record */
+	char error; /* true if an error occurred parsing this record */
 
 	u8 max_len; /* maximum record length in whole ihex */
 
@@ -107,7 +107,7 @@ static u8 usb6fire_fw_ihex_hex(const u8 *data, u8 *crc)
 
 /*
  * returns true if record is available, false otherwise.
- * iff an error occured, false will be returned and record->error will be true.
+ * iff an error occurred, false will be returned and record->error will be true.
  */
 static bool usb6fire_fw_ihex_next_record(struct ihex_record *record)
 {
diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c
index 5e4775716607..6ec33b62e6cf 100644
--- a/sound/usb/mixer.c
+++ b/sound/usb/mixer.c
@@ -1182,7 +1182,7 @@ static void build_feature_ctl(struct mixer_build *state, void *raw_desc,
 /*
  * parse a feature unit
  *
- * most of controlls are defined here.
+ * most of controls are defined here.
  */
 static int parse_audio_feature_unit(struct mixer_build *state, int unitid, void *_ftr)
 {
diff --git a/sound/usb/quirks-table.h b/sound/usb/quirks-table.h
index c0dcfca9b5b5..c66d3f64dcf8 100644
--- a/sound/usb/quirks-table.h
+++ b/sound/usb/quirks-table.h
@@ -1568,6 +1568,46 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 	}
 },
 {
+	USB_DEVICE_VENDOR_SPEC(0x0582, 0x0104),
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
+		/* .vendor_name = "Roland", */
+		/* .product_name = "UM-1G", */
+		.ifnum = 0,
+		.type = QUIRK_MIDI_FIXED_ENDPOINT,
+		.data = & (const struct snd_usb_midi_endpoint_info) {
+			.out_cables = 0x0001,
+			.in_cables  = 0x0001
+		}
+	}
+},
+{
+	/* Boss JS-8 Jam Station  */
+	USB_DEVICE(0x0582, 0x0109),
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
+		/* .vendor_name = "BOSS", */
+		/* .product_name = "JS-8", */
+		.ifnum = QUIRK_ANY_INTERFACE,
+		.type = QUIRK_COMPOSITE,
+		.data = (const struct snd_usb_audio_quirk[]) {
+			{
+				.ifnum = 0,
+				.type = QUIRK_AUDIO_STANDARD_INTERFACE
+			},
+			{
+				.ifnum = 1,
+				.type = QUIRK_AUDIO_STANDARD_INTERFACE
+			},
+			{
+				.ifnum = 2,
+				.type = QUIRK_MIDI_STANDARD_INTERFACE
+			},
+			{
+				.ifnum = -1
+			}
+		}
+	}
+},
+{
 	/* has ID 0x0110 when not in Advanced Driver mode */
 	USB_DEVICE_VENDOR_SPEC(0x0582, 0x010f),
 	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c
index 355759bad581..ec07e62e53f3 100644
--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -266,7 +266,7 @@ static int create_uaxx_quirk(struct snd_usb_audio *chip,
  * audio-interface quirks
  *
  * returns zero if no standard audio/MIDI parsing is needed.
- * returns a postive value if standard audio/midi interfaces are parsed
+ * returns a positive value if standard audio/midi interfaces are parsed
  * after this.
  * returns a negative value at error.
  */
diff --git a/sound/usb/usx2y/usx2yhwdeppcm.c b/sound/usb/usx2y/usx2yhwdeppcm.c
index 287ef73b1237..a51340f6f2db 100644
--- a/sound/usb/usx2y/usx2yhwdeppcm.c
+++ b/sound/usb/usx2y/usx2yhwdeppcm.c
@@ -20,7 +20,7 @@
  at standard samplerates,
  what led to this part of the usx2y module: 
  It provides the alsa kernel half of the usx2y-alsa-jack driver pair.
- The pair uses a hardware dependant alsa-device for mmaped pcm transport.
+ The pair uses a hardware dependent alsa-device for mmaped pcm transport.
  Advantage achieved:
          The usb_hc moves pcm data from/into memory via DMA.
          That memory is mmaped by jack's usx2y driver.
@@ -38,7 +38,7 @@
          2periods works but is useless cause of crackling).
 
  This is a first "proof of concept" implementation.
- Later, functionalities should migrate to more apropriate places:
+ Later, functionalities should migrate to more appropriate places:
  Userland:
  - The jackd could mmap its float-pcm buffers directly from alsa-lib.
  - alsa-lib could provide power of 2 period sized shaping combined with int/float
diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index 158c30e8210c..207dee5c5b16 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -165,8 +165,12 @@ grep-libs = $(filter -l%,$(1))
 strip-libs = $(filter-out -l%,$(1))
 
 $(OUTPUT)python/perf.so: $(PYRF_OBJS)
-	$(QUIET_GEN)python util/setup.py --quiet  build_ext --build-lib='$(OUTPUT)python' \
-						--build-temp='$(OUTPUT)python/temp'
+	$(QUIET_GEN)( \
+		export CFLAGS="$(BASIC_CFLAGS)"; \
+		python util/setup.py --quiet  build_ext --build-lib='$(OUTPUT)python' \
+			--build-temp='$(OUTPUT)python/temp' \
+	)
+
 #
 # No Perl scripts right now:
 #
diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
index 695de4b5ae63..e18eb7ed30ae 100644
--- a/tools/perf/builtin-annotate.c
+++ b/tools/perf/builtin-annotate.c
@@ -42,9 +42,9 @@ static const char *sym_hist_filter;
 
 static int perf_evlist__add_sample(struct perf_evlist *evlist,
 				   struct perf_sample *sample,
+				   struct perf_evsel *evsel,
 				   struct addr_location *al)
 {
-	struct perf_evsel *evsel;
 	struct hist_entry *he;
 	int ret;
 
@@ -59,18 +59,6 @@ static int perf_evlist__add_sample(struct perf_evlist *evlist,
 		return 0;
 	}
 
-	evsel = perf_evlist__id2evsel(evlist, sample->id);
-	if (evsel == NULL) {
-		/*
-		 * FIXME: Propagate this back, but at least we're in a builtin,
-		 * where exit() is allowed. ;-)
-		 */
-		ui__warning("Invalid %s file, contains samples with id not in "
-			    "its header!\n", input_name);
-		exit_browser(0);
-		exit(1);
-	}
-
 	he = __hists__add_entry(&evsel->hists, al, NULL, 1);
 	if (he == NULL)
 		return -ENOMEM;
@@ -92,6 +80,7 @@ static int perf_evlist__add_sample(struct perf_evlist *evlist,
 
 static int process_sample_event(union perf_event *event,
 				struct perf_sample *sample,
+				struct perf_evsel *evsel,
 				struct perf_session *session)
 {
 	struct addr_location al;
@@ -103,7 +92,8 @@ static int process_sample_event(union perf_event *event,
 		return -1;
 	}
 
-	if (!al.filtered && perf_evlist__add_sample(session->evlist, sample, &al)) {
+	if (!al.filtered &&
+	    perf_evlist__add_sample(session->evlist, sample, evsel, &al)) {
 		pr_warning("problem incrementing symbol count, "
 			   "skipping event\n");
 		return -1;
diff --git a/tools/perf/builtin-diff.c b/tools/perf/builtin-diff.c
index 6b7d91160ecb..e8219990f8b8 100644
--- a/tools/perf/builtin-diff.c
+++ b/tools/perf/builtin-diff.c
@@ -32,6 +32,7 @@ static int hists__add_entry(struct hists *self,
 
 static int diff__process_sample_event(union perf_event *event,
 				      struct perf_sample *sample,
+				      struct perf_evsel *evsel __used,
 				      struct perf_session *session)
 {
 	struct addr_location al;
diff --git a/tools/perf/builtin-inject.c b/tools/perf/builtin-inject.c
index e29f04ed3396..8dfc12bb119b 100644
--- a/tools/perf/builtin-inject.c
+++ b/tools/perf/builtin-inject.c
@@ -43,6 +43,14 @@ static int perf_event__repipe(union perf_event *event,
 	return perf_event__repipe_synth(event, session);
 }
 
+static int perf_event__repipe_sample(union perf_event *event,
+			      struct perf_sample *sample __used,
+			      struct perf_evsel *evsel __used,
+			      struct perf_session *session)
+{
+	return perf_event__repipe_synth(event, session);
+}
+
 static int perf_event__repipe_mmap(union perf_event *event,
 				   struct perf_sample *sample,
 				   struct perf_session *session)
@@ -124,6 +132,7 @@ static int dso__inject_build_id(struct dso *self, struct perf_session *session)
 
 static int perf_event__inject_buildid(union perf_event *event,
 				      struct perf_sample *sample,
+				      struct perf_evsel *evsel __used,
 				      struct perf_session *session)
 {
 	struct addr_location al;
@@ -164,7 +173,7 @@ repipe:
 }
 
 struct perf_event_ops inject_ops = {
-	.sample		= perf_event__repipe,
+	.sample		= perf_event__repipe_sample,
 	.mmap		= perf_event__repipe,
 	.comm		= perf_event__repipe,
 	.fork		= perf_event__repipe,
diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index 7f618f4e7b79..225e963df105 100644
--- a/tools/perf/builtin-kmem.c
+++ b/tools/perf/builtin-kmem.c
@@ -305,6 +305,7 @@ static void process_raw_event(union perf_event *raw_event __used, void *data,
 
 static int process_sample_event(union perf_event *event,
 				struct perf_sample *sample,
+				struct perf_evsel *evsel __used,
 				struct perf_session *session)
 {
 	struct thread *thread = perf_session__findnew(session, event->ip.pid);
diff --git a/tools/perf/builtin-lock.c b/tools/perf/builtin-lock.c
index 7a2a79d2cf2c..9ac05aafd9b2 100644
--- a/tools/perf/builtin-lock.c
+++ b/tools/perf/builtin-lock.c
@@ -845,7 +845,9 @@ static void dump_info(void)
 		die("Unknown type of information\n");
 }
 
-static int process_sample_event(union perf_event *event, struct perf_sample *sample,
+static int process_sample_event(union perf_event *event,
+				struct perf_sample *sample,
+				struct perf_evsel *evsel __used,
 				struct perf_session *s)
 {
 	struct thread *thread = perf_session__findnew(s, sample->tid);
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 6febcc168a8c..17d1dcb3c667 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -41,7 +41,7 @@ static u64			user_interval			= ULLONG_MAX;
 static u64			default_interval		=      0;
 
 static unsigned int		page_size;
-static unsigned int		mmap_pages			=    128;
+static unsigned int		mmap_pages			= UINT_MAX;
 static unsigned int		user_freq 			= UINT_MAX;
 static int			freq				=   1000;
 static int			output;
@@ -275,11 +275,10 @@ try_again:
 				     !no_inherit) < 0) {
 			int err = errno;
 
-			if (err == EPERM || err == EACCES)
-				die("Permission error - are you root?\n"
-					"\t Consider tweaking"
-					" /proc/sys/kernel/perf_event_paranoid.\n");
-			else if (err ==  ENODEV && cpu_list) {
+			if (err == EPERM || err == EACCES) {
+				ui__warning_paranoid();
+				exit(EXIT_FAILURE);
+			} else if (err ==  ENODEV && cpu_list) {
 				die("No such device - did you specify"
 					" an out-of-range profile CPU?\n");
 			} else if (err == EINVAL && sample_id_all_avail) {
@@ -302,11 +301,19 @@ try_again:
 					&& attr->config == PERF_COUNT_HW_CPU_CYCLES) {
 
 				if (verbose)
-					warning(" ... trying to fall back to cpu-clock-ticks\n");
+					ui__warning("The cycles event is not supported, "
+						    "trying to fall back to cpu-clock-ticks\n");
 				attr->type = PERF_TYPE_SOFTWARE;
 				attr->config = PERF_COUNT_SW_CPU_CLOCK;
 				goto try_again;
 			}
+
+			if (err == ENOENT) {
+				ui__warning("The %s event is not supported.\n",
+					    event_name(pos));
+				exit(EXIT_FAILURE);
+			}
+
 			printf("\n");
 			error("sys_perf_event_open() syscall returned with %d (%s).  /bin/dmesg may provide additional information.\n",
 			      err, strerror(err));
@@ -506,6 +513,10 @@ static int __cmd_record(int argc, const char **argv)
 	if (have_tracepoints(&evsel_list->entries))
 		perf_header__set_feat(&session->header, HEADER_TRACE_INFO);
 
+	/* 512 kiB: default amount of unprivileged mlocked memory */
+	if (mmap_pages == UINT_MAX)
+		mmap_pages = (512 * 1024) / page_size;
+
 	if (forks) {
 		child_pid = fork();
 		if (child_pid < 0) {
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index b1b82009ab9b..498c6f70a747 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -50,12 +50,12 @@ static symbol_filter_t	annotate_init;
 
 static int perf_session__add_hist_entry(struct perf_session *session,
 					struct addr_location *al,
-					struct perf_sample *sample)
+					struct perf_sample *sample,
+					struct perf_evsel *evsel)
 {
 	struct symbol *parent = NULL;
 	int err = 0;
 	struct hist_entry *he;
-	struct perf_evsel *evsel;
 
 	if ((sort__has_parent || symbol_conf.use_callchain) && sample->callchain) {
 		err = perf_session__resolve_callchain(session, al->thread,
@@ -64,18 +64,6 @@ static int perf_session__add_hist_entry(struct perf_session *session,
 			return err;
 	}
 
-	evsel = perf_evlist__id2evsel(session->evlist, sample->id);
-	if (evsel == NULL) {
-		/*
-		 * FIXME: Propagate this back, but at least we're in a builtin,
-		 * where exit() is allowed. ;-)
-		 */
-		ui__warning("Invalid %s file, contains samples with id %" PRIu64 " not in "
-			    "its header!\n", input_name, sample->id);
-		exit_browser(0);
-		exit(1);
-	}
-
 	he = __hists__add_entry(&evsel->hists, al, parent, sample->period);
 	if (he == NULL)
 		return -ENOMEM;
@@ -113,6 +101,7 @@ out:
 
 static int process_sample_event(union perf_event *event,
 				struct perf_sample *sample,
+				struct perf_evsel *evsel,
 				struct perf_session *session)
 {
 	struct addr_location al;
@@ -127,7 +116,7 @@ static int process_sample_event(union perf_event *event,
 	if (al.filtered || (hide_unresolved && al.sym == NULL))
 		return 0;
 
-	if (perf_session__add_hist_entry(session, &al, sample)) {
+	if (perf_session__add_hist_entry(session, &al, sample, evsel)) {
 		pr_debug("problem incrementing symbol period, skipping event\n");
 		return -1;
 	}
diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c
index a32f411faeac..dcfe8873c9a1 100644
--- a/tools/perf/builtin-sched.c
+++ b/tools/perf/builtin-sched.c
@@ -1603,6 +1603,7 @@ static void process_raw_event(union perf_event *raw_event __used,
 
 static int process_sample_event(union perf_event *event,
 				struct perf_sample *sample,
+				struct perf_evsel *evsel __used,
 				struct perf_session *session)
 {
 	struct thread *thread;
diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index 9f5fc5492141..ac574ea23917 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -162,19 +162,11 @@ static void print_sample_start(struct perf_sample *sample,
 
 static void process_event(union perf_event *event __unused,
 			  struct perf_sample *sample,
+			  struct perf_evsel *evsel,
 			  struct perf_session *session,
 			  struct thread *thread)
 {
-	struct perf_event_attr *attr;
-	struct perf_evsel *evsel;
-
-	evsel = perf_evlist__id2evsel(session->evlist, sample->id);
-	if (evsel == NULL) {
-		pr_err("Invalid data. Contains samples with id not in "
-		       "its header!\n");
-		return;
-	}
-	attr = &evsel->attr;
+	struct perf_event_attr *attr = &evsel->attr;
 
 	if (output_fields[attr->type] == 0)
 		return;
@@ -244,6 +236,7 @@ static char const		*input_name = "perf.data";
 
 static int process_sample_event(union perf_event *event,
 				struct perf_sample *sample,
+				struct perf_evsel *evsel,
 				struct perf_session *session)
 {
 	struct thread *thread = perf_session__findnew(session, event->ip.pid);
@@ -264,7 +257,7 @@ static int process_sample_event(union perf_event *event,
 		last_timestamp = sample->time;
 		return 0;
 	}
-	scripting_ops->process_event(event, sample, session, thread);
+	scripting_ops->process_event(event, sample, evsel, session, thread);
 
 	session->hists.stats.total_period += sample->period;
 	return 0;
diff --git a/tools/perf/builtin-timechart.c b/tools/perf/builtin-timechart.c
index 67c0459dc325..aa26f4d66d10 100644
--- a/tools/perf/builtin-timechart.c
+++ b/tools/perf/builtin-timechart.c
@@ -488,6 +488,7 @@ static void sched_switch(int cpu, u64 timestamp, struct trace_entry *te)
 
 static int process_sample_event(union perf_event *event __used,
 				struct perf_sample *sample,
+				struct perf_evsel *evsel __used,
 				struct perf_session *session)
 {
 	struct trace_entry *te;
@@ -506,6 +507,16 @@ static int process_sample_event(union perf_event *event __used,
 		struct power_entry_old *peo;
 		peo = (void *)te;
 #endif
+		/*
+		 * FIXME: use evsel, its already mapped from id to perf_evsel,
+		 * remove perf_header__find_event infrastructure bits.
+		 * Mapping all these "power:cpu_idle" strings to the tracepoint
+		 * ID and then just comparing against evsel->attr.config.
+		 *
+		 * e.g.:
+		 *
+		 * if (evsel->attr.config == power_cpu_idle_id)
+		 */
 		event_str = perf_header__find_event(te->type);
 
 		if (!event_str)
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 70f1075cc5b0..fc1273e976c5 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -515,7 +515,9 @@ static void handle_keypress(struct perf_session *session, int c)
 			break;
 		case 'E':
 			if (top.evlist->nr_entries > 1) {
-				int counter;
+				/* Select 0 as the default event: */
+				int counter = 0;
+
 				fprintf(stderr, "\nAvailable events:");
 
 				list_for_each_entry(top.sym_evsel, &top.evlist->entries, node)
@@ -848,10 +850,10 @@ try_again:
 				     top.evlist->threads, group, inherit) < 0) {
 			int err = errno;
 
-			if (err == EPERM || err == EACCES)
-				die("Permission error - are you root?\n"
-					"\t Consider tweaking"
-					" /proc/sys/kernel/perf_event_paranoid.\n");
+			if (err == EPERM || err == EACCES) {
+				ui__warning_paranoid();
+				goto out_err;
+			}
 			/*
 			 * If it's cycles then fall back to hrtimer
 			 * based cpu-clock-tick sw counter, which
@@ -859,25 +861,41 @@ try_again:
 			 */
 			if (attr->type == PERF_TYPE_HARDWARE &&
 			    attr->config == PERF_COUNT_HW_CPU_CYCLES) {
-
 				if (verbose)
-					warning(" ... trying to fall back to cpu-clock-ticks\n");
+					ui__warning("Cycles event not supported,\n"
+						    "trying to fall back to cpu-clock-ticks\n");
 
 				attr->type = PERF_TYPE_SOFTWARE;
 				attr->config = PERF_COUNT_SW_CPU_CLOCK;
 				goto try_again;
 			}
-			printf("\n");
-			error("sys_perf_event_open() syscall returned with %d "
-			      "(%s).  /bin/dmesg may provide additional information.\n",
-			      err, strerror(err));
-			die("No CONFIG_PERF_EVENTS=y kernel support configured?\n");
-			exit(-1);
+
+			if (err == ENOENT) {
+				ui__warning("The %s event is not supported.\n",
+					    event_name(counter));
+				goto out_err;
+			}
+
+			ui__warning("The sys_perf_event_open() syscall "
+				    "returned with %d (%s).  /bin/dmesg "
+				    "may provide additional information.\n"
+				    "No CONFIG_PERF_EVENTS=y kernel support "
+				    "configured?\n", err, strerror(err));
+			goto out_err;
 		}
 	}
 
-	if (perf_evlist__mmap(evlist, mmap_pages, false) < 0)
-		die("failed to mmap with %d (%s)\n", errno, strerror(errno));
+	if (perf_evlist__mmap(evlist, mmap_pages, false) < 0) {
+		ui__warning("Failed to mmap with %d (%s)\n",
+			    errno, strerror(errno));
+		goto out_err;
+	}
+
+	return;
+
+out_err:
+	exit_browser(0);
+	exit(0);
 }
 
 static int __cmd_top(void)
diff --git a/tools/perf/util/build-id.c b/tools/perf/util/build-id.c
index 31f934af9861..a91cd99f26ea 100644
--- a/tools/perf/util/build-id.c
+++ b/tools/perf/util/build-id.c
@@ -16,6 +16,7 @@
 
 static int build_id__mark_dso_hit(union perf_event *event,
 				  struct perf_sample *sample __used,
+				  struct perf_evsel *evsel __used,
 				  struct perf_session *session)
 {
 	struct addr_location al;
diff --git a/tools/perf/util/debug.c b/tools/perf/util/debug.c
index d4536a9e0d8c..155749d74350 100644
--- a/tools/perf/util/debug.c
+++ b/tools/perf/util/debug.c
@@ -57,6 +57,16 @@ void ui__warning(const char *format, ...)
 }
 #endif
 
+void ui__warning_paranoid(void)
+{
+	ui__warning("Permission error - are you root?\n"
+		    "Consider tweaking /proc/sys/kernel/perf_event_paranoid:\n"
+		    " -1 - Not paranoid at all\n"
+		    "  0 - Disallow raw tracepoint access for unpriv\n"
+		    "  1 - Disallow cpu events for unpriv\n"
+		    "  2 - Disallow kernel profiling for unpriv\n");
+}
+
 void trace_event(union perf_event *event)
 {
 	unsigned char *raw_event = (void *)event;
diff --git a/tools/perf/util/debug.h b/tools/perf/util/debug.h
index 93516cf4682c..fd53db47e3de 100644
--- a/tools/perf/util/debug.h
+++ b/tools/perf/util/debug.h
@@ -36,5 +36,6 @@ int ui_helpline__show_help(const char *format, va_list ap);
 #endif
 
 void ui__warning(const char *format, ...) __attribute__((format(printf, 1, 2)));
+void ui__warning_paranoid(void);
 
 #endif	/* __PERF_DEBUG_H */
diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index 2b15c362ef56..1023f67633a4 100644
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -710,7 +710,7 @@ try_again:
 		 * in the whole kernel symbol list.
 		 */
 		if ((long long)al->addr < 0 &&
-		    cpumode == PERF_RECORD_MISC_KERNEL &&
+		    cpumode == PERF_RECORD_MISC_USER &&
 		    machine && mg != &machine->kmaps) {
 			mg = &machine->kmaps;
 			goto try_again;
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index e5230c0ef95b..93862a8027ea 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -695,13 +695,50 @@ out:
 	return err;
 }
 
+static int perf_header__read_build_ids_abi_quirk(struct perf_header *header,
+						 int input, u64 offset, u64 size)
+{
+	struct perf_session *session = container_of(header, struct perf_session, header);
+	struct {
+		struct perf_event_header   header;
+		u8			   build_id[ALIGN(BUILD_ID_SIZE, sizeof(u64))];
+		char			   filename[0];
+	} old_bev;
+	struct build_id_event bev;
+	char filename[PATH_MAX];
+	u64 limit = offset + size;
+
+	while (offset < limit) {
+		ssize_t len;
+
+		if (read(input, &old_bev, sizeof(old_bev)) != sizeof(old_bev))
+			return -1;
+
+		if (header->needs_swap)
+			perf_event_header__bswap(&old_bev.header);
+
+		len = old_bev.header.size - sizeof(old_bev);
+		if (read(input, filename, len) != len)
+			return -1;
+
+		bev.header = old_bev.header;
+		bev.pid	   = 0;
+		memcpy(bev.build_id, old_bev.build_id, sizeof(bev.build_id));
+		__event_process_build_id(&bev, filename, session);
+
+		offset += bev.header.size;
+	}
+
+	return 0;
+}
+
 static int perf_header__read_build_ids(struct perf_header *header,
 				       int input, u64 offset, u64 size)
 {
 	struct perf_session *session = container_of(header, struct perf_session, header);
 	struct build_id_event bev;
 	char filename[PATH_MAX];
-	u64 limit = offset + size;
+	u64 limit = offset + size, orig_offset = offset;
 	int err = -1;
 
 	while (offset < limit) {
@@ -716,6 +753,24 @@ static int perf_header__read_build_ids(struct perf_header *header,
 		len = bev.header.size - sizeof(bev);
 		if (read(input, filename, len) != len)
 			goto out;
+		/*
+		 * The a1645ce1 changeset:
+		 *
+		 * "perf: 'perf kvm' tool for monitoring guest performance from host"
+		 *
+		 * Added a field to struct build_id_event that broke the file
+		 * format.
+		 *
+		 * Since the kernel build-id is the first entry, process the
+		 * table using the old format if the well known
+		 * '[kernel.kallsyms]' string for the kernel build-id has the
+		 * first 4 characters chopped off (where the pid_t sits).
+		 */
+		if (memcmp(filename, "nel.kallsyms]", 13) == 0) {
+			if (lseek(input, orig_offset, SEEK_SET) == (off_t)-1)
+				return -1;
+			return perf_header__read_build_ids_abi_quirk(header, input, offset, size);
+		}
 
 		__event_process_build_id(&bev, filename, session);
 
diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index cb6858a2f9a3..3beb97c4d822 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -29,6 +29,7 @@ struct events_stats {
 	u32 nr_events[PERF_RECORD_HEADER_MAX];
 	u32 nr_unknown_events;
 	u32 nr_invalid_chains;
+	u32 nr_unknown_id;
 };
 
 enum hist_column {
diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index 5ddee66020a7..f0223166e761 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -234,7 +234,6 @@ static int try_to_find_probe_trace_events(struct perf_probe_event *pev,
 
 	/* Searching trace events corresponding to probe event */
 	ntevs = find_probe_trace_events(fd, pev, tevs, max_tevs);
-	close(fd);
 
 	if (ntevs > 0) {	/* Succeeded to find trace events */
 		pr_debug("find %d probe_trace_events.\n", ntevs);
@@ -388,7 +387,6 @@ int show_line_range(struct line_range *lr, const char *module)
 	}
 
 	ret = find_line_range(fd, lr);
-	close(fd);
 	if (ret == 0) {
 		pr_warning("Specified source line is not found.\n");
 		return -ENOENT;
@@ -512,19 +510,18 @@ int show_available_vars(struct perf_probe_event *pevs, int npevs,
 	if (ret < 0)
 		return ret;
 
-	fd = open_vmlinux(module);
-	if (fd < 0) {
-		pr_warning("Failed to open debug information file.\n");
-		return fd;
-	}
-
 	setup_pager();
 
-	for (i = 0; i < npevs && ret >= 0; i++)
+	for (i = 0; i < npevs && ret >= 0; i++) {
+		fd = open_vmlinux(module);
+		if (fd < 0) {
+			pr_warning("Failed to open debug information file.\n");
+			ret = fd;
+			break;
+		}
 		ret = show_available_vars_at(fd, &pevs[i], max_vls, _filter,
 					     externs);
-
-	close(fd);
+	}
 	return ret;
 }
 
diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c
index 194f9e2a3285..b7c85ce466a1 100644
--- a/tools/perf/util/probe-finder.c
+++ b/tools/perf/util/probe-finder.c
@@ -273,6 +273,25 @@ static const char *cu_get_comp_dir(Dwarf_Die *cu_die)
 	return dwarf_formstring(&attr);
 }
 
+/* Get a line number and file name for given address */
+static int cu_find_lineinfo(Dwarf_Die *cudie, unsigned long addr,
+			    const char **fname, int *lineno)
+{
+	Dwarf_Line *line;
+	Dwarf_Addr laddr;
+
+	line = dwarf_getsrc_die(cudie, (Dwarf_Addr)addr);
+	if (line && dwarf_lineaddr(line, &laddr) == 0 &&
+	    addr == (unsigned long)laddr && dwarf_lineno(line, lineno) == 0) {
+		*fname = dwarf_linesrc(line, NULL, NULL);
+		if (!*fname)
+			/* line number is useless without filename */
+			*lineno = 0;
+	}
+
+	return *lineno ?: -ENOENT;
+}
+
 /* Compare diename and tname */
 static bool die_compare_name(Dwarf_Die *dw_die, const char *tname)
 {
@@ -497,7 +516,20 @@ static int __die_find_inline_cb(Dwarf_Die *die_mem, void *data)
 static Dwarf_Die *die_find_inlinefunc(Dwarf_Die *sp_die, Dwarf_Addr addr,
 				      Dwarf_Die *die_mem)
 {
-	return die_find_child(sp_die, __die_find_inline_cb, &addr, die_mem);
+	Dwarf_Die tmp_die;
+
+	sp_die = die_find_child(sp_die, __die_find_inline_cb, &addr, &tmp_die);
+	if (!sp_die)
+		return NULL;
+
+	/* Inlined function could be recursive. Trace it until fail */
+	while (sp_die) {
+		memcpy(die_mem, sp_die, sizeof(Dwarf_Die));
+		sp_die = die_find_child(sp_die, __die_find_inline_cb, &addr,
+					&tmp_die);
+	}
+
+	return die_mem;
 }
 
 /* Walker on lines (Note: line number will not be sorted) */
@@ -1395,6 +1427,10 @@ static int probe_point_search_cb(Dwarf_Die *sp_die, void *data)
 	    !die_compare_name(sp_die, pp->function))
 		return DWARF_CB_OK;
 
+	/* Check declared file */
+	if (pp->file && strtailcmp(pp->file, dwarf_decl_file(sp_die)))
+		return DWARF_CB_OK;
+
 	pf->fname = dwarf_decl_file(sp_die);
 	if (pp->line) { /* Function relative line */
 		dwarf_decl_line(sp_die, &pf->lno);
@@ -1451,6 +1487,7 @@ static int find_probes(int fd, struct probe_finder *pf)
 	if (!dbg) {
 		pr_warning("No debug information found in the vmlinux - "
 			"please rebuild with CONFIG_DEBUG_INFO=y.\n");
+		close(fd);	/* Without dwfl_end(), fd isn't closed. */
 		return -EBADF;
 	}
 
@@ -1686,11 +1723,9 @@ int find_perf_probe_point(unsigned long addr, struct perf_probe_point *ppt)
 	Dwarf_Die cudie, spdie, indie;
 	Dwarf *dbg = NULL;
 	Dwfl *dwfl = NULL;
-	Dwarf_Line *line;
-	Dwarf_Addr laddr, eaddr, bias = 0;
-	const char *tmp;
-	int lineno, ret = 0;
-	bool found = false;
+	Dwarf_Addr _addr, baseaddr, bias = 0;
+	const char *fname = NULL, *func = NULL, *tmp;
+	int baseline = 0, lineno = 0, ret = 0;
 
 	/* Open the live linux kernel */
 	dbg = dwfl_init_live_kernel_dwarf(addr, &dwfl, &bias);
@@ -1711,68 +1746,79 @@ int find_perf_probe_point(unsigned long addr, struct perf_probe_point *ppt)
 		goto end;
 	}
 
-	/* Find a corresponding line */
-	line = dwarf_getsrc_die(&cudie, (Dwarf_Addr)addr);
-	if (line) {
-		if (dwarf_lineaddr(line, &laddr) == 0 &&
-		    (Dwarf_Addr)addr == laddr &&
-		    dwarf_lineno(line, &lineno) == 0) {
-			tmp = dwarf_linesrc(line, NULL, NULL);
-			if (tmp) {
-				ppt->line = lineno;
-				ppt->file = strdup(tmp);
-				if (ppt->file == NULL) {
-					ret = -ENOMEM;
-					goto end;
-				}
-				found = true;
-			}
-		}
-	}
+	/* Find a corresponding line (filename and lineno) */
+	cu_find_lineinfo(&cudie, addr, &fname, &lineno);
+	/* Don't care whether it failed or not */
 
-	/* Find a corresponding function */
+	/* Find a corresponding function (name, baseline and baseaddr) */
 	if (die_find_real_subprogram(&cudie, (Dwarf_Addr)addr, &spdie)) {
+		/* Get function entry information */
 		tmp = dwarf_diename(&spdie);
-		if (!tmp || dwarf_entrypc(&spdie, &eaddr) != 0)
-			goto end;
-
-		if (ppt->line) {
-			if (die_find_inlinefunc(&spdie, (Dwarf_Addr)addr,
-						&indie)) {
-				/* addr in an inline function */
+		if (!tmp ||
+		    dwarf_entrypc(&spdie, &baseaddr) != 0 ||
+		    dwarf_decl_line(&spdie, &baseline) != 0)
+			goto post;
+		func = tmp;
+
+		if (addr == (unsigned long)baseaddr)
+			/* Function entry - Relative line number is 0 */
+			lineno = baseline;
+		else if (die_find_inlinefunc(&spdie, (Dwarf_Addr)addr,
+					     &indie)) {
+			if (dwarf_entrypc(&indie, &_addr) == 0 &&
+			    _addr == addr)
+				/*
+				 * addr is at an inline function entry.
+				 * In this case, lineno should be the call-site
+				 * line number.
+				 */
+				lineno = die_get_call_lineno(&indie);
+			else {
+				/*
+				 * addr is in an inline function body.
+				 * Since lineno points one of the lines
+				 * of the inline function, baseline should
+				 * be the entry line of the inline function.
+				 */
 				tmp = dwarf_diename(&indie);
-				if (!tmp)
-					goto end;
-				ret = dwarf_decl_line(&indie, &lineno);
-			} else {
-				if (eaddr == addr) {	/* Function entry */
-					lineno = ppt->line;
-					ret = 0;
-				} else
-					ret = dwarf_decl_line(&spdie, &lineno);
-			}
-			if (ret == 0) {
-				/* Make a relative line number */
-				ppt->line -= lineno;
-				goto found;
+				if (tmp &&
+				    dwarf_decl_line(&spdie, &baseline) == 0)
+					func = tmp;
 			}
 		}
-		/* We don't have a line number, let's use offset */
-		ppt->offset = addr - (unsigned long)eaddr;
-found:
-		ppt->function = strdup(tmp);
+	}
+
+post:
+	/* Make a relative line number or an offset */
+	if (lineno)
+		ppt->line = lineno - baseline;
+	else if (func)
+		ppt->offset = addr - (unsigned long)baseaddr;
+
+	/* Duplicate strings */
+	if (func) {
+		ppt->function = strdup(func);
 		if (ppt->function == NULL) {
 			ret = -ENOMEM;
 			goto end;
 		}
-		found = true;
 	}
-
+	if (fname) {
+		ppt->file = strdup(fname);
+		if (ppt->file == NULL) {
+			if (ppt->function) {
+				free(ppt->function);
+				ppt->function = NULL;
+			}
+			ret = -ENOMEM;
+			goto end;
+		}
+	}
 end:
 	if (dwfl)
 		dwfl_end(dwfl);
-	if (ret >= 0)
-		ret = found ? 1 : 0;
+	if (ret == 0 && (fname || func))
+		ret = 1;	/* Found a point */
 	return ret;
 }
 
@@ -1840,6 +1886,10 @@ static int line_range_search_cb(Dwarf_Die *sp_die, void *data)
 	struct line_finder *lf = param->data;
 	struct line_range *lr = lf->lr;
 
+	/* Check declared file */
+	if (lr->file && strtailcmp(lr->file, dwarf_decl_file(sp_die)))
+		return DWARF_CB_OK;
+
 	if (dwarf_tag(sp_die) == DW_TAG_subprogram &&
 	    die_compare_name(sp_die, lr->function)) {
 		lf->fname = dwarf_decl_file(sp_die);
@@ -1892,6 +1942,7 @@ int find_line_range(int fd, struct line_range *lr)
 	if (!dbg) {
 		pr_warning("No debug information found in the vmlinux - "
 			"please rebuild with CONFIG_DEBUG_INFO=y.\n");
+		close(fd);	/* Without dwfl_end(), fd isn't closed. */
 		return -EBADF;
 	}
 
diff --git a/tools/perf/util/scripting-engines/trace-event-perl.c b/tools/perf/util/scripting-engines/trace-event-perl.c
index 621427212e86..74350ffb57fe 100644
--- a/tools/perf/util/scripting-engines/trace-event-perl.c
+++ b/tools/perf/util/scripting-engines/trace-event-perl.c
@@ -247,6 +247,7 @@ static inline struct event *find_cache_event(int type)
 
 static void perl_process_event(union perf_event *pevent __unused,
 			       struct perf_sample *sample,
+			       struct perf_evsel *evsel,
 			       struct perf_session *session __unused,
 			       struct thread *thread)
 {
diff --git a/tools/perf/util/scripting-engines/trace-event-python.c b/tools/perf/util/scripting-engines/trace-event-python.c
index 1b85d6055159..6ccf70e8d8f2 100644
--- a/tools/perf/util/scripting-engines/trace-event-python.c
+++ b/tools/perf/util/scripting-engines/trace-event-python.c
@@ -206,6 +206,7 @@ static inline struct event *find_cache_event(int type)
 
 static void python_process_event(union perf_event *pevent __unused,
 				 struct perf_sample *sample,
+				 struct perf_evsel *evsel __unused,
 				 struct perf_session *session __unused,
 				 struct thread *thread)
 {
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index c68cf40764f9..caa224522fea 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -280,6 +280,15 @@ static int process_event_synth_stub(union perf_event *event __used,
 	return 0;
 }
 
+static int process_event_sample_stub(union perf_event *event __used,
+				     struct perf_sample *sample __used,
+				     struct perf_evsel *evsel __used,
+				     struct perf_session *session __used)
+{
+	dump_printf(": unhandled!\n");
+	return 0;
+}
+
 static int process_event_stub(union perf_event *event __used,
 			      struct perf_sample *sample __used,
 			      struct perf_session *session __used)
@@ -303,7 +312,7 @@ static int process_finished_round(union perf_event *event,
 static void perf_event_ops__fill_defaults(struct perf_event_ops *handler)
 {
 	if (handler->sample == NULL)
-		handler->sample = process_event_stub;
+		handler->sample = process_event_sample_stub;
 	if (handler->mmap == NULL)
 		handler->mmap = process_event_stub;
 	if (handler->comm == NULL)
@@ -698,12 +707,19 @@ static int perf_session_deliver_event(struct perf_session *session,
 				      struct perf_event_ops *ops,
 				      u64 file_offset)
 {
+	struct perf_evsel *evsel;
+
 	dump_event(session, event, file_offset, sample);
 
 	switch (event->header.type) {
 	case PERF_RECORD_SAMPLE:
 		dump_sample(session, event, sample);
-		return ops->sample(event, sample, session);
+		evsel = perf_evlist__id2evsel(session->evlist, sample->id);
+		if (evsel == NULL) {
+			++session->hists.stats.nr_unknown_id;
+			return -1;
+		}
+		return ops->sample(event, sample, evsel, session);
 	case PERF_RECORD_MMAP:
 		return ops->mmap(event, sample, session);
 	case PERF_RECORD_COMM:
@@ -845,6 +861,11 @@ static void perf_session__warn_about_errors(const struct perf_session *session,
 			    session->hists.stats.nr_unknown_events);
 	}
 
+	if (session->hists.stats.nr_unknown_id != 0) {
+		ui__warning("%u samples with id not present in the header\n",
+			    session->hists.stats.nr_unknown_id);
+	}
+
  	if (session->hists.stats.nr_invalid_chains != 0) {
  		ui__warning("Found invalid callchains!\n\n"
  			    "%u out of %u events were discarded for this reason.\n\n"
diff --git a/tools/perf/util/session.h b/tools/perf/util/session.h
index 0b3c9afecaa9..1ac481fc1100 100644
--- a/tools/perf/util/session.h
+++ b/tools/perf/util/session.h
@@ -55,8 +55,11 @@ struct perf_session {
 	char			filename[0];
 };
 
+struct perf_evsel;
 struct perf_event_ops;
 
+typedef int (*event_sample)(union perf_event *event, struct perf_sample *sample,
+			    struct perf_evsel *evsel, struct perf_session *session);
 typedef int (*event_op)(union perf_event *self, struct perf_sample *sample,
 			struct perf_session *session);
 typedef int (*event_synth_op)(union perf_event *self,
@@ -65,8 +68,8 @@ typedef int (*event_op2)(union perf_event *self, struct perf_session *session,
 			 struct perf_event_ops *ops);
 
 struct perf_event_ops {
-	event_op	sample,
-			mmap,
+	event_sample	sample;
+	event_op	mmap,
 			comm,
 			fork,
 			exit,
diff --git a/tools/perf/util/setup.py b/tools/perf/util/setup.py
index e24ffadb20b2..bbc982f5dd8b 100644
--- a/tools/perf/util/setup.py
+++ b/tools/perf/util/setup.py
@@ -1,13 +1,18 @@
 #!/usr/bin/python2
 
 from distutils.core import setup, Extension
+from os import getenv
+
+cflags = ['-fno-strict-aliasing', '-Wno-write-strings']
+cflags += getenv('CFLAGS', '').split()
 
 perf = Extension('perf',
 		  sources = ['util/python.c', 'util/ctype.c', 'util/evlist.c',
 			     'util/evsel.c', 'util/cpumap.c', 'util/thread_map.c',
 			     'util/util.c', 'util/xyarray.c', 'util/cgroup.c'],
 		  include_dirs = ['util/include'],
-		  extra_compile_args = ['-fno-strict-aliasing', '-Wno-write-strings'])
+		  extra_compile_args = cflags,
+                 )
 
 setup(name='perf',
       version='0.1',
diff --git a/tools/perf/util/string.c b/tools/perf/util/string.c
index 8fc0bd3a3a4a..b9a985dadd08 100644
--- a/tools/perf/util/string.c
+++ b/tools/perf/util/string.c
@@ -85,7 +85,7 @@ out:
 
 /*
  * Helper function for splitting a string into an argv-like array.
- * originaly copied from lib/argv_split.c
+ * originally copied from lib/argv_split.c
  */
 static const char *skip_sep(const char *cp)
 {
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index 651dbfe7f4f3..f06c10f092ba 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -1196,6 +1196,8 @@ static int dso__load_sym(struct dso *self, struct map *map, const char *name,
 				if (curr_dso == NULL)
 					goto out_elf_end;
 				curr_dso->kernel = self->kernel;
+				curr_dso->long_name = self->long_name;
+				curr_dso->long_name_len = self->long_name_len;
 				curr_map = map__new2(start, curr_dso,
 						     map->type);
 				if (curr_map == NULL) {
@@ -1486,7 +1488,9 @@ int dso__load(struct dso *self, struct map *map, symbol_filter_t filter)
 	 * On the first pass, only load images if they have a full symtab.
 	 * Failing that, do a second pass where we accept .dynsym also
 	 */
-	for (self->symtab_type = SYMTAB__BUILD_ID_CACHE, want_symtab = 1;
+	want_symtab = 1;
+restart:
+	for (self->symtab_type = SYMTAB__BUILD_ID_CACHE;
 	     self->symtab_type != SYMTAB__NOT_FOUND;
 	     self->symtab_type++) {
 		switch (self->symtab_type) {
@@ -1536,17 +1540,7 @@ int dso__load(struct dso *self, struct map *map, symbol_filter_t filter)
 			snprintf(name, size, "%s%s", symbol_conf.symfs,
 				 self->long_name);
 			break;
-
-		default:
-			/*
-			 * If we wanted a full symtab but no image had one,
-			 * relax our requirements and repeat the search.
-			 */
-			if (want_symtab) {
-				want_symtab = 0;
-				self->symtab_type = SYMTAB__BUILD_ID_CACHE;
-			} else
-				continue;
+		default:;
 		}
 
 		/* Name is now the name of the next image to try */
@@ -1573,6 +1567,15 @@ int dso__load(struct dso *self, struct map *map, symbol_filter_t filter)
 		}
 	}
 
+	/*
+	 * If we wanted a full symtab but no image had one,
+	 * relax our requirements and repeat the search.
+	 */
+	if (ret <= 0 && want_symtab) {
+		want_symtab = 0;
+		goto restart;
+	}
+
 	free(name);
 	if (ret < 0 && strstr(self->name, " (deleted)") != NULL)
 		return 0;
@@ -1841,6 +1844,7 @@ int dso__load_vmlinux(struct dso *self, struct map *map,
 	if (fd < 0)
 		return -1;
 
+	dso__set_long_name(self, (char *)vmlinux);
 	dso__set_loaded(self, map->type);
 	err = dso__load_sym(self, map, symfs_vmlinux, fd, filter, 0, 0);
 	close(fd);
@@ -2402,6 +2406,8 @@ int symbol__init(void)
 	if (symbol_conf.initialized)
 		return 0;
 
+	symbol_conf.priv_size = ALIGN(symbol_conf.priv_size, sizeof(u64));
+
 	elf_version(EV_CURRENT);
 	if (symbol_conf.sort_by_name)
 		symbol_conf.priv_size += (sizeof(struct symbol_name_rb_node) -
diff --git a/tools/perf/util/trace-event-scripting.c b/tools/perf/util/trace-event-scripting.c
index 66f4b78737ab..c9dcbec7d800 100644
--- a/tools/perf/util/trace-event-scripting.c
+++ b/tools/perf/util/trace-event-scripting.c
@@ -38,6 +38,7 @@ static int stop_script_unsupported(void)
 
 static void process_event_unsupported(union perf_event *event __unused,
 				      struct perf_sample *sample __unused,
+				      struct perf_evsel *evsel __unused,
 				      struct perf_session *session __unused,
 				      struct thread *thread __unused)
 {
diff --git a/tools/perf/util/trace-event.h b/tools/perf/util/trace-event.h
index b04da5722437..f674dda3363b 100644
--- a/tools/perf/util/trace-event.h
+++ b/tools/perf/util/trace-event.h
@@ -280,6 +280,7 @@ struct scripting_ops {
 	int (*stop_script) (void);
 	void (*process_event) (union perf_event *event,
 			       struct perf_sample *sample,
+			       struct perf_evsel *evsel,
 			       struct perf_session *session,
 			       struct thread *thread);
 	int (*generate_script) (const char *outfile);
diff --git a/tools/power/x86/x86_energy_perf_policy/x86_energy_perf_policy.c b/tools/power/x86/x86_energy_perf_policy/x86_energy_perf_policy.c
index d9678a34dd70..2618ef2ba31f 100644
--- a/tools/power/x86/x86_energy_perf_policy/x86_energy_perf_policy.c
+++ b/tools/power/x86/x86_energy_perf_policy/x86_energy_perf_policy.c
@@ -46,7 +46,7 @@ int cpu = -1;
  *
  *  performance
  *	Performance is paramount.
- *	Unwilling to sacrafice any performance
+ *	Unwilling to sacrifice any performance
  *	for the sake of energy saving. (hardware default)
  *
  *  normal
diff --git a/virt/kvm/eventfd.c b/virt/kvm/eventfd.c
index 3656849f78a0..73358d256fa2 100644
--- a/virt/kvm/eventfd.c
+++ b/virt/kvm/eventfd.c
@@ -90,7 +90,7 @@ irqfd_shutdown(struct work_struct *work)
 	 * We know no new events will be scheduled at this point, so block
 	 * until all previously outstanding events have completed
 	 */
-	flush_work(&irqfd->inject);
+	flush_work_sync(&irqfd->inject);
 
 	/*
 	 * It is now safe to release the object's resources
@@ -578,7 +578,7 @@ kvm_assign_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args)
 
 	mutex_lock(&kvm->slots_lock);
 
-	/* Verify that there isnt a match already */
+	/* Verify that there isn't a match already */
 	if (ioeventfd_check_collision(kvm, p)) {
 		ret = -EEXIST;
 		goto unlock_fail;
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 7bee6dc8cdb2..6330653480e4 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -30,7 +30,7 @@
 #include <linux/debugfs.h>
 #include <linux/highmem.h>
 #include <linux/file.h>
-#include <linux/sysdev.h>
+#include <linux/syscore_ops.h>
 #include <linux/cpu.h>
 #include <linux/sched.h>
 #include <linux/cpumask.h>
@@ -1037,6 +1037,17 @@ static pfn_t get_fault_pfn(void)
 	return fault_pfn;
 }
 
+int get_user_page_nowait(struct task_struct *tsk, struct mm_struct *mm,
+	unsigned long start, int write, struct page **page)
+{
+	int flags = FOLL_TOUCH | FOLL_NOWAIT | FOLL_HWPOISON | FOLL_GET;
+
+	if (write)
+		flags |= FOLL_WRITE;
+
+	return __get_user_pages(tsk, mm, start, 1, flags, page, NULL, NULL);
+}
+
 static inline int check_user_page_hwpoison(unsigned long addr)
 {
 	int rc, flags = FOLL_TOUCH | FOLL_HWPOISON | FOLL_WRITE;
@@ -1070,7 +1081,14 @@ static pfn_t hva_to_pfn(struct kvm *kvm, unsigned long addr, bool atomic,
 		if (writable)
 			*writable = write_fault;
 
-		npages = get_user_pages_fast(addr, 1, write_fault, page);
+		if (async) {
+			down_read(&current->mm->mmap_sem);
+			npages = get_user_page_nowait(current, current->mm,
+						     addr, write_fault, page);
+			up_read(&current->mm->mmap_sem);
+		} else
+			npages = get_user_pages_fast(addr, 1, write_fault,
+						     page);
 
 		/* map read fault as writable if possible */
 		if (unlikely(!write_fault) && npages == 1) {
@@ -1093,7 +1111,8 @@ static pfn_t hva_to_pfn(struct kvm *kvm, unsigned long addr, bool atomic,
 			return get_fault_pfn();
 
 		down_read(&current->mm->mmap_sem);
-		if (check_user_page_hwpoison(addr)) {
+		if (npages == -EHWPOISON ||
+			(!async && check_user_page_hwpoison(addr))) {
 			up_read(&current->mm->mmap_sem);
 			get_page(hwpoison_page);
 			return page_to_pfn(hwpoison_page);
@@ -2446,33 +2465,26 @@ static void kvm_exit_debug(void)
 	debugfs_remove(kvm_debugfs_dir);
 }
 
-static int kvm_suspend(struct sys_device *dev, pm_message_t state)
+static int kvm_suspend(void)
 {
 	if (kvm_usage_count)
 		hardware_disable_nolock(NULL);
 	return 0;
 }
 
-static int kvm_resume(struct sys_device *dev)
+static void kvm_resume(void)
 {
 	if (kvm_usage_count) {
 		WARN_ON(raw_spin_is_locked(&kvm_lock));
 		hardware_enable_nolock(NULL);
 	}
-	return 0;
 }
 
-static struct sysdev_class kvm_sysdev_class = {
-	.name = "kvm",
+static struct syscore_ops kvm_syscore_ops = {
 	.suspend = kvm_suspend,
 	.resume = kvm_resume,
 };
 
-static struct sys_device kvm_sysdev = {
-	.id = 0,
-	.cls = &kvm_sysdev_class,
-};
-
 struct page *bad_page;
 pfn_t bad_pfn;
 
@@ -2556,14 +2568,6 @@ int kvm_init(void *opaque, unsigned vcpu_size, unsigned vcpu_align,
 		goto out_free_2;
 	register_reboot_notifier(&kvm_reboot_notifier);
 
-	r = sysdev_class_register(&kvm_sysdev_class);
-	if (r)
-		goto out_free_3;
-
-	r = sysdev_register(&kvm_sysdev);
-	if (r)
-		goto out_free_4;
-
 	/* A kmem cache lets us meet the alignment requirements of fx_save. */
 	if (!vcpu_align)
 		vcpu_align = __alignof__(struct kvm_vcpu);
@@ -2571,7 +2575,7 @@ int kvm_init(void *opaque, unsigned vcpu_size, unsigned vcpu_align,
 					   0, NULL);
 	if (!kvm_vcpu_cache) {
 		r = -ENOMEM;
-		goto out_free_5;
+		goto out_free_3;
 	}
 
 	r = kvm_async_pf_init();
@@ -2588,6 +2592,8 @@ int kvm_init(void *opaque, unsigned vcpu_size, unsigned vcpu_align,
 		goto out_unreg;
 	}
 
+	register_syscore_ops(&kvm_syscore_ops);
+
 	kvm_preempt_ops.sched_in = kvm_sched_in;
 	kvm_preempt_ops.sched_out = kvm_sched_out;
 
@@ -2599,10 +2605,6 @@ out_unreg:
 	kvm_async_pf_deinit();
 out_free:
 	kmem_cache_destroy(kvm_vcpu_cache);
-out_free_5:
-	sysdev_unregister(&kvm_sysdev);
-out_free_4:
-	sysdev_class_unregister(&kvm_sysdev_class);
 out_free_3:
 	unregister_reboot_notifier(&kvm_reboot_notifier);
 	unregister_cpu_notifier(&kvm_cpu_notifier);
@@ -2630,8 +2632,7 @@ void kvm_exit(void)
 	misc_deregister(&kvm_dev);
 	kmem_cache_destroy(kvm_vcpu_cache);
 	kvm_async_pf_deinit();
-	sysdev_unregister(&kvm_sysdev);
-	sysdev_class_unregister(&kvm_sysdev_class);
+	unregister_syscore_ops(&kvm_syscore_ops);
 	unregister_reboot_notifier(&kvm_reboot_notifier);
 	unregister_cpu_notifier(&kvm_cpu_notifier);
 	on_each_cpu(hardware_disable_nolock, NULL, 1);