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2010-11-30sparc: Pass buffer pointer all the way down to prom_{get,put}char().David S. Miller6-54/+55
This gets us closer to being able to eliminate the use of dynamic and stack based buffers, so that we can adhere to the "no buffer addresses above 4GB" rule for PROM calls. Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-17sparc: Do not export prom_nb{get,put}char().David S. Miller4-20/+4
Never used outside of console_{32,64}.c Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-16sparc64: Delete prom_setcallback().David S. Miller2-22/+0
Unused. Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-16sparc64: Unexport prom_service_exists().David S. Miller2-2/+1
Only used by functions in misc_64.c so make it private to that file. Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-16sparc: Kill prom devops_{32,64}.cDavid S. Miller5-195/+0
Completely unused. Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-16sparc: Remove prom_pathtoinode()David S. Miller4-36/+0
Unused. Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-16sparc64: Delete prom_puts() unused.David S. Miller1-16/+0
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-29SPARC/LEON: removed constant timer initialization as if HZ=100, now it reflects the value of HZDaniel Hellstrom1-2/+2
Signed-off-by: Daniel Hellstrom <daniel@gaisler.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-26kbuild: add ARCH=sparc32 targetNamhyung Kim1-0/+3
Add 'sparc32' ARCH target to test all{yes,mod}config for 32-bit build. Signed-off-by: Namhyung Kim <namhyung@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-26sparc32: fix build failure on CONFIG_SPARC_LEONNamhyung Kim1-2/+2
CC arch/sparc/kernel/irq_32.o arch/sparc/kernel/irq_32.c: In function 'request_fast_irq': arch/sparc/kernel/irq_32.c:370:25: error: conflicting types for 'trapbase_cpu1' arch/sparc/include/asm/leon.h:366:22: note: previous declaration of 'trapbase_cpu1' was here arch/sparc/kernel/irq_32.c:370:40: error: conflicting types for 'trapbase_cpu2' arch/sparc/include/asm/leon.h:367:22: note: previous declaration of 'trapbase_cpu2' was here arch/sparc/kernel/irq_32.c:370:55: error: conflicting types for 'trapbase_cpu3' arch/sparc/include/asm/leon.h:368:22: note: previous declaration of 'trapbase_cpu3' was here make[3]: *** [arch/sparc/kernel/irq_32.o] Error 1 make[2]: *** [arch/sparc/kernel] Error 2 make[1]: *** [sub-make] Error 2 make: *** [all] Error 2 Signed-off-by: Namhyung Kim <namhyung@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-26sparc: Fixed random SPARC/LEON SMP CPU Stuck problem.Daniel Hellstrom1-2/+2
Signed-off-by: Daniel Hellstrom <daniel@gaisler.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-26sparc32: remove CONFIG_HAVE_PERF_EVENTS optionNamhyung Kim1-3/+0
Remove HAVE_PERF_EVENTS and PERF_USE_VMALLOC under config SPARC because they're under SPARC64 too. Supporting perf_event needs atomic64 operations but AFAIK sparc32 doesn't provide them, CMIIW. ;-) Also removes redundant HAVE_IRQ_WORK line. Signed-off-by: Namhyung Kim <namhyung@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-26sparc: don't #include asm/system.h in asm/jump_label.hNamhyung Kim1-1/+0
It seems that #include <asm/system.h> makes a circular dependency between kernel.h and bitmap.h which breaks allmodconfig build. Removing the line makes no change because jump_label.h doesn't need it actually AFAICS. Compile tested on sparc32 allmodconfig. Signed-off-by: Namhyung Kim <namhyung@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-26sparc32: Fix unaligned stack handling on trap return.David S. Miller1-0/+12
When the rett stack checking code sees the stack is unaligned (in both the sun4c and srmmu cases) it jumps to the window fault-in path. But that just tries to page the stack pages in, it doesn't do anything special if the stack is misaligned. Therefore we essentially just loop forever in the trap return path. Fix this by emitting a SIGILL in the stack fault-in code if the stack is mis-aligned. Reported-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-26sparc: keep calling do_signal() as long as pending signals remainAl Viro2-36/+6
Analog of what commit 494486a1d2697f2153199b6501ab5b4d6e15a2bb had done to alpha (another architecture with similar bug). One note: in rtrap_32.S part clr %l6 has been a rudiment of left after commit 28e6103665301ce60634e8a77f0b657c6cc099de (sparc: Fix debugger syscall restart interactions) has killed %l6 use in there. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-25spi: tegra: fix error setting on timeoutErik Gilling1-4/+4
avoids derefencing an uninitialized pointer Change-Id: Icf528441ae481e9f6f5ddc0be32c7c217fa49701 Signed-off-by: Erik Gilling <konkers@android.com>
2010-10-25MN10300: Fix the PERCPU() alignment to allow for workqueuesDavid Howells2-2/+4
In the MN10300 arch, we occasionally see an assertion being tripped in alloc_cwqs() at the following line: /* just in case, make sure it's actually aligned */ ---> BUG_ON(!IS_ALIGNED(wq->cpu_wq.v, align)); return wq->cpu_wq.v ? 0 : -ENOMEM; The values are: wa->cpu_wq.v => 0x902776e0 align => 0x100 and align is calculated by the following: const size_t align = max_t(size_t, 1 << WORK_STRUCT_FLAG_BITS, __alignof__(unsigned long long)); This is because the pointer in question (wq->cpu_wq.v) loses some of its lower bits to control flags, and so the object it points to must be sufficiently aligned to avoid the need to use those bits for pointing to things. Currently, 4 control bits and 4 colour bits are used in normal circumstances, plus a debugging bit if debugging is set. This requires the cpu_workqueue_struct struct to be at least 256 bytes aligned (or 512 bytes aligned with debugging). PERCPU() alignment on MN13000, however, is only 32 bytes as set in vmlinux.lds.S. So we set this to PAGE_SIZE (4096) to match most other arches and stick a comment in alloc_cwqs() for anyone else who triggers the assertion. Reported-by: Akira Takeuchi <takeuchi.akr@jp.panasonic.com> Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Mark Salter <msalter@redhat.com> Cc: Tejun Heo <tj@kernel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-10-25hwmon: lis3: Release resources in case of failureSamu Onkalo1-0/+5
If lis3lv02d_init_device fails, HW resources were not released properly. In case of failure call release_resources if available. Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com> Acked-by: Eric Piel <eric.piel@tremplin-utc.net> Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
2010-10-25Blackfin: fix inverted anomaly 05000481 logicMike Frysinger1-1/+1
No one uses these MMRs so we didn't notice when the anomaly handling logic was inverted. Reported-by: Robin Getz <robin.getz@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-10-25Blackfin: drop unused irq_panic()/DEBUG_ICACHE_CHECKMike Frysinger3-118/+0
This code was useful during early port development when our icache code wasn't solid, but that ship has sailed long ago, and no code calls this function anymore (irq_panic). So punt it. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-10-25hwmon: lis3: Short explanations of platform data fieldsSamu Onkalo1-0/+46
Short documentation at kernel doc format. Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com> Acked-by: Jonathan Cameron <jic23@cam.ac.uk> Acked-by: Eric Piel <eric.piel@tremplin-utc.net> Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
2010-10-25hwmon: lis3: Enhance lis3 selftest with IRQ line testSamu Onkalo2-9/+82
Configure chip to data ready mode in selftest and count received interrupts to see that interrupt line(s) are working. Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com> Acked-by: Eric Piel <eric.piel@tremplin-utc.net> Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
2010-10-25hwmon: lis3: use block read to access data registersSamu Onkalo4-3/+33
Add optional blockread function to interface driver. If available the chip driver uses it for data register access. For 12 bit device it reads 6 bytes to get 3*16bit data. For 8 bit device it reads out 5 bytes since every second byte is dummy. This optimizes bus usage and reduces number of operations and interrupts needed for one data update. Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com> Acked-by: Jonathan Cameron <jic23@cam.ac.uk> Acked-by: Eric Piel <eric.piel@tremplin-utc.net> Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
2010-10-25hwmon: lis3: Adjust fuzziness for 8 bit deviceSamu Onkalo1-4/+14
Default fuziness is set smaller for 8 device. In 12 bit device LSB is quite close to 1 mg (mg = 1 / 1000 of earth gravity). In 8bit device LSB is about 18 mg. Set fuziness to 1 for 8 bit device. Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com> Acked-by: Eric Piel <eric.piel@tremplin-utc.net> Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
2010-10-25hwmon: lis3: New parameters to platform dataSamu Onkalo2-8/+19
Added default output data rate setting to platform data. If default rate is 0, reset default value is used. Added control for duration via platform data. Added possibility to configure interrupts to trig on both rising and falling edge. The lis3 WU unit can be configured quite many ways and with some configurations it is quite handy to get coordinate refresh when some event trigs and when it reason goes away. Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com> Acked-by: Jonathan Cameron <jic23@cam.ac.uk> Acked-by: Eric Piel <eric.piel@tremplin-utc.net> Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
2010-10-25hwmon: lis3: restore axis enabled bitsSamu Onkalo2-2/+2
All axis enable bits are set to 0 at module remove. Restore reset default value at init. Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com> Acked-by: Eric Piel <eric.piel@tremplin-utc.net> Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
2010-10-25hwmon: lis3: Power on correctionsSamu Onkalo2-8/+12
Sometimes lis3 chip seems to fail to setup factory tuning at boot up. This probably happens if there is some odd power ramp down ramp up sequence for example in device restart. Set boot bit in control2 register to trig boot sequence manually and wait until it is finished. Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com> Acked-by: Jonathan Cameron <jic23@cam.ac.uk> Acked-by: Eric Piel <eric.piel@tremplin-utc.net> Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
2010-10-25hwmon: lis3: Update coordinates at polled device openSamu Onkalo1-0/+5
Call input device poll function at device open to refresh coordinates immediately. This is needed for the case where poll interval is set to zero and coordinate updates happens purely under interrupt control. Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com> Acked-by: Eric Piel <eric.piel@tremplin-utc.net> Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
2010-10-25hwmon: lis3: Cleanup interrupt handlingSamu Onkalo2-22/+13
Irqcfg moved to chip data instead of platform data. This simplifies access in interrupt handler little bit. Input device open and close functions set status for interrupt threaded handler once. Unnecessary check for interrupt source removed since it is enough that active interrupt line indicates that there was an interrupt. Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com> Acked-by: Eric Piel <eric.piel@tremplin-utc.net> Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
2010-10-25hwmon: lis3: regulator controlSamu Onkalo4-1/+121
Based on pm_runtime control, turn lis3 regulators on and off. Perform context save and restore on transitions. Feature is optional and must be enabled in platform data. Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com> Acked-by: Jonathan Cameron <jic23@cam.ac.uk> Acked-by: Eric Piel <eric.piel@tremplin-utc.net> Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
2010-10-25hwmon: lis3: pm_runtime supportSamu Onkalo3-13/+102
Add pm_runtime support to lis3 core driver. Add pm_runtime support to lis3 i2c driver. spi and hp_accel drivers are not yet supported. Old always on functionality remains for those. For sysfs there is 5 second delay before turning off the chip to avoid long ramp up delay. Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com> Acked-by: Jonathan Cameron <jic23@cam.ac.uk> Acked-by: Eric Piel <eric.piel@tremplin-utc.net> Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
2010-10-25Kirkwood: add fan support for Network Space Max v2Simon Guinot1-0/+43
Signed-off-by: Simon Guinot <sguinot@lacie.com> Acked-by: Nicolas Pitre <nico@fluxnic.net> Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
2010-10-25hwmon: add generic GPIO fan driverSimon Guinot4-0/+604
This patch adds hwmon support for fans connected to GPIO lines. Platform specific information such as GPIO pinout and speed conversion array (rpm from/to GPIO value) are passed to the driver via platform_data. Signed-off-by: Simon Guinot <sguinot@lacie.com> Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
2010-10-25hwmon: (coretemp) fix reading of microcode revision (v2)Jan Beulich1-2/+18
According to the documentation, simply reading the respective MSR isn't sufficient: It should be written with zeros, cpuid(1) be executed, and then read (see arch/x86/kernel/cpu/intel.c for an example). v2: Fail probe when microcode revision cannot be determined, but is needed to check for proper operation. Signed-off-by: Jan Beulich <jbeulich@novell.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Chen Gong <gong.chen@linux.intel.com> Cc: Jean Delvare <khali@linux-fr.org> Acked-by: Fenghua Yu <fenghua.yu@intel.com> Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
2010-10-25hwmon: ({core, pkg, via-cpu}temp) remove unnecessary CONFIG_HOTPLUG_CPU ifdefsChen Gong3-14/+3
CONFIG_HOTPLUG_CPU is used too much in some drivers. This patch clean them up. Signed-off-by: Chen Gong <gong.chen@linux.intel.com> Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
2010-10-25hwmon: (pkgtemp) align driver initialization style with coretempChen Gong1-14/+8
pkgtemp is derived from coretemp, so some reasonable logics should be applied onto pkgtemp, too. Such as the init logic here. Signed-off-by: Chen Gong <gong.chen@linux.intel.com> Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
2010-10-25hwmon: LTC4261 Hardware monitoring driverGuenter Roeck5-0/+397
This driver adds support for Linear Technology LTC4261 I2C Negative Voltage Hot Swap Controller. Reviewed-by: Ira W. Snyder <iws@ovro.caltech.edu> Reviewed-by: Tom Grennan <tom.grennan@ericsson.com> Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
2010-10-25hwmon: (lis3) add axes module parameter for custom axis-mappingTakashi Iwai5-21/+52
The axis-mapping of lis3dev device on many (rather most) HP machines doesn't follow the standard. When each new model appears, users need to adjust again. Testing this requires the rebuild of kernel, thus it's not trivial for end-users. This patch adds a module parameter "axes" to allow a custom axis-mapping without patching and recompiling the kernel driver. User can pass the parameter such as axes=3,2,1. Also it can be changed via sysfs. Signed-off-by: Takashi Iwai <tiwai@suse.de> Acked-by: Eric Piel <eric.piel@tremplin-utc.net> Cc: Jean Delvare <khali@linux-fr.org> Cc: Guenter Roeck <guenter.roeck@ericsson.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
2010-10-25hwmon: (hp_accel) Add HP Mini 510x family supportMasanari Iida1-1/+1
This patch is an enhanced version of Takashi Iwai's [PATCH] hp_accel: Add quirks for HP ProBook 532x and HP Mini 5102 My HP Mini 5101 works fine with this patch. Confirmed with Tux Racer. Signed-off by: Masanari Iida <standby24x7@gmail.com> Acked-by: Takashi Iwai <tiwai@suse.de> Cc: Eric Piel <eric.piel@tremplin-utc.net> Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
2010-10-25hwmon: (lis3) Add support for new LIS3DC / HP3DC chipTakashi Iwai2-8/+44
A new version of LIS3 chip has slight incompatibilities from former versions. This patch adds the minimal support for it. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
2010-10-25x86/hwmon: remove inclusion of unnecessary headers from {core, pkg, via-cpu}temp.cJan Beulich3-4/+0
These likely originate from these drivers being clones of one another and/or other drivers which actually needed these includes. Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
2010-10-25x86/hwmon: (coretemp) cosmetic cleanupJan Beulich1-2/+0
"break" after "return" is at best bogus (good compilers even warn about the "break" being unreachable). Signed-off-by: Jan Beulich <jbeulich@novell.com> Cc: Rudolf Marek <r.marek@assembler.cz> Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
2010-10-25x86/hwmon: {core, pkg, via}cpu_temp_device_remove() can all be __cpuinitJan Beulich3-3/+3
... as they're being called only from a __cpuinit function. Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
2010-10-25x86-32, mm: Remove duplicated includeBorislav Petkov1-1/+0
Commit b40827fa7268 ("x86-32, mm: Add an initial page table for core bootstrapping") added an include directive which is needless and is taken care of by a previous one. Remove it. Caught-by: Jaswinder Singh Rajput <jaswinderlinux@gmail.com> Signed-off-by: Borislav Petkov <bp@alien8.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-10-25exofs: Remove inode->i_count manipulation in exofs_new_inodeBoaz Harrosh1-19/+9
exofs_new_inode() was incrementing the inode->i_count and decrementing it in create_done(), in a bad attempt to make sure the inode will still be there when the asynchronous create_done() finally arrives. This was very stupid because iput() was not called, and if it was actually needed, it would leak the inode. However all this is not needed, because at exofs_evict_inode() we already wait for create_done() by waiting for the object_created event. Therefore remove the superfluous ref counting and just Thicken the comment at exofs_evict_inode() a bit. While at it change places that open coded wait_obj_created() to call the already available wrapper. CC: Dave Chinner <dchinner@redhat.com> CC: Christoph Hellwig <hch@lst.de> CC: Nick Piggin <npiggin@kernel.dk> Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
2010-10-25fs/exofs: typo fix of faild to failedJoe Perches3-14/+14
Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
2010-10-25MIPS: MT: Fix build error iFPU affinity codeRalf Baechle1-1/+1
Commit b0ae19811375 ("security: remove unused parameter from security_task_setscheduler()") broke the build of arch/mips/kernel/mips-mt-fpaff.c. The function arguments were unnecessary, not the semicolon ... Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Acked-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Acked-by: James Morris <jmorris@namei.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-10-25Coda: replace BKL with mutexYoshihisa Abe4-50/+70
Replace the BKL with a mutex to protect the venus_comm structure which binds the mountpoint with the character device and holds the upcall queues. Signed-off-by: Yoshihisa Abe <yoshiabe@cs.cmu.edu> Signed-off-by: Jan Harkes <jaharkes@cs.cmu.edu> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-10-25Coda: push BKL regions into coda_upcall()Yoshihisa Abe8-190/+96
Now that shared inode state is locked using the cii->c_lock, the BKL is only used to protect the upcall queues used to communicate with the userspace cache manager. The remaining state is all local and we can push the lock further down into coda_upcall(). Signed-off-by: Yoshihisa Abe <yoshiabe@cs.cmu.edu> Signed-off-by: Jan Harkes <jaharkes@cs.cmu.edu> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-10-25Coda: add spin lock to protect accesses to struct coda_inode_info.Yoshihisa Abe7-17/+58
We mostly need it to protect cached user permissions. The c_flags field is advisory, reading the wrong value is harmless and in the worst case we hit a slow path where we have to make an extra upcall to the userspace cache manager when revalidating a dentry or inode. Signed-off-by: Yoshihisa Abe <yoshiabe@cs.cmu.edu> Signed-off-by: Jan Harkes <jaharkes@cs.cmu.edu> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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