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create_path() on something without a single / in it will return err
without initializing it. It actually can't happen (we call that thing
only if create on the same path returns -ENOENT, which won't happen
happen for single-component path), but in this case initializing err
to 0 is more than making compiler to STFU - would be the right thing
to return on such paths; the function creates a parent directory of
given pathname and in that case it has no work to do...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6:
merge fchmod() and fchmodat() guts, kill ancient broken kludge
xfs: fix misspelled S_IS...()
xfs: get rid of open-coded S_ISREG(), etc.
vfs: document locking requirements for d_move, __d_move and d_materialise_unique
omfs: fix (mode & S_IFDIR) abuse
btrfs: S_ISREG(mode) is not mode & S_IFREG...
ima: fmode_t misspelled as mode_t...
pci-label.c: size_t misspelled as mode_t
jffs2: S_ISLNK(mode & S_IFMT) is pointless
snd_msnd ->mode is fmode_t, not mode_t
v9fs_iop_get_acl: get rid of unused variable
vfs: dont chain pipe/anon/socket on superblock s_inodes list
Documentation: Exporting: update description of d_splice_alias
fs: add missing unlock in default_llseek()
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* 'next/devel2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc: (47 commits)
OMAP: Add debugfs node to show the summary of all clocks
OMAP2+: hwmod: Follow the recommended PRCM module enable sequence
OMAP2+: clock: allow per-SoC clock init code to prevent clockdomain calls from clock code
OMAP2+: clockdomain: Add per clkdm lock to prevent concurrent state programming
OMAP2+: PM: idle clkdms only if already in idle
OMAP2+: clockdomain: add clkdm_in_hwsup()
OMAP2+: clockdomain: Add 2 APIs to control clockdomain from hwmod framework
OMAP: clockdomain: Remove redundant call to pwrdm_wait_transition()
OMAP4: hwmod: Introduce the module control in hwmod control
OMAP4: cm: Add two new APIs for modulemode control
OMAP4: hwmod data: Add modulemode entry in omap_hwmod structure
OMAP4: hwmod data: Add PRM context register offset
OMAP4: prm: Remove deprecated functions
OMAP4: prm: Replace warm reset API with the offset based version
OMAP4: hwmod: Replace RSTCTRL absolute address with offset macros
OMAP: hwmod: Wait the idle status to be disabled
OMAP4: hwmod: Replace CLKCTRL absolute address with offset macros
OMAP2+: hwmod: Init clkdm field at boot time
OMAP4: hwmod data: Add clock domain attribute
OMAP4: clock data: Add missing divider selection for auxclks
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* 'next/devel' of ssh://master.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc: (128 commits)
ARM: S5P64X0: External Interrupt Support
ARM: EXYNOS4: Enable MFC on Samsung NURI
ARM: EXYNOS4: Enable MFC on universal_c210
ARM: S5PV210: Enable MFC on Goni
ARM: S5P: Add support for MFC device
ARM: EXYNOS4: Add support FIMD on SMDKC210
ARM: EXYNOS4: Add platform device and helper functions for FIMD
ARM: EXYNOS4: Add resource definition for FIMD
ARM: EXYNOS4: Change devname for FIMD clkdev
ARM: SAMSUNG: Add IRQ_I2S0 definition
ARM: SAMSUNG: Add platform device for idma
ARM: EXYNOS4: Add more registers to be saved and restored for PM
ARM: EXYNOS4: Add more register addresses of CMU
ARM: EXYNOS4: Add platform device for dwmci driver
ARM: EXYNOS4: configure rtc-s3c on NURI
ARM: EXYNOS4: configure MAX8903 secondary charger on NURI
ARM: EXYNOS4: configure ADC on NURI
ARM: EXYNOS4: configure MAX17042 fuel gauge on NURI
ARM: EXYNOS4: configure regulators and PMIC(MAX8997) on NURI
ARM: EXYNOS4: Increase NR_IRQS for devices with more IRQs
...
Fix up tons of silly conflicts:
- arch/arm/mach-davinci/include/mach/psc.h
- arch/arm/mach-exynos4/Kconfig
- arch/arm/mach-exynos4/mach-smdkc210.c
- arch/arm/mach-exynos4/pm.c
- arch/arm/mach-imx/mm-imx1.c
- arch/arm/mach-imx/mm-imx21.c
- arch/arm/mach-imx/mm-imx25.c
- arch/arm/mach-imx/mm-imx27.c
- arch/arm/mach-imx/mm-imx31.c
- arch/arm/mach-imx/mm-imx35.c
- arch/arm/mach-mx5/mm.c
- arch/arm/mach-s5pv210/mach-goni.c
- arch/arm/mm/Kconfig
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* 'next/cross-platform' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc:
ARM: Consolidate the clkdev header files
ARM: set vga memory base at run-time
ARM: convert PCI defines to variables
ARM: pci: make pcibios_assign_all_busses use pci_has_flag
ARM: remove unnecessary mach/hardware.h includes
pci: move microblaze and powerpc pci flag functions into asm-generic
powerpc: rename ppc_pci_*_flags to pci_*_flags
Fix up conflicts in arch/microblaze/include/asm/pci-bridge.h
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* 'next-i2c' of git://git.fluff.org/bjdooks/linux:
i2c-eg20t : Fix the issue of Combined R/W transfer mode
i2c-eg20t : Support Combined R/W transfer mode
i2c: Tegra: Add DeviceTree support
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This allows us to move duplicated code in <asm/atomic.h>
(atomic_inc_not_zero() for now) to <linux/atomic.h>
Signed-off-by: Arun Sharma <asharma@fb.com>
Reviewed-by: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: David Miller <davem@davemloft.net>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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The size of the dump is currently set using the RECORD_SIZE macro which
is set to a page size. This patch makes the record size a module
parameter and allows it to be set through platform data as well to allow
larger dumps if needed.
Signed-off-by: Sergiu Iordache <sergiu@chromium.org>
Acked-by: Marco Stornelli <marco.stornelli@gmail.com>
Cc: "Ahmed S. Darwish" <darwish.07@gmail.com>
Cc: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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The platform driver currently allows setting the mem_size and
mem_address.
ince dump_oops is also a module parameter it would be more consistent if
it could be set through platform data as well.
Signed-off-by: Sergiu Iordache <sergiu@chromium.org>
Acked-by: Marco Stornelli <marco.stornelli@gmail.com>
Cc: "Ahmed S. Darwish" <darwish.07@gmail.com>
Cc: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Add new line to each print.
Signed-off-by: Marco Stornelli <marco.stornelli@gmail.com>
Reported-by: Stevie Trujillo <stevie.trujillo@gmail.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Américo Wang <xiyou.wangcong@gmail.com>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Use generic module parameters instead of platform data, if platform data
are not available. This limitation has been introduced with commit
c3b92ce9e75 ("ramoops: use the platform data structure instead of module
params").
[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Marco Stornelli <marco.stornelli@gmail.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Américo Wang <xiyou.wangcong@gmail.com>
Reported-by: Stevie Trujillo <stevie.trujillo@gmail.com>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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With the arrival of concurrency-managed workqueues there is no need for
our driver to use dedicated workqueue; system-wide one should suffice just
fine.
[akpm@linux-foundation.org: fix comment layout & grammar]
Signed-off-by: Dmitry Torokhov <dtor@vmware.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Signed-off-by: Christian Glindkamp <christian.glindkamp@taskit.de>
Cc: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Parameter offset_in_page in edac_mc_handle_ce() should mask the higher
bits above the page size, not the lower bits. The original input
sometimes causes a crash.
Signed-off-by: Kai.Jiang <Kai.Jiang@freescale.com>
Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com>
Cc: Anton Vorontsov <avorontsov@mvista.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Ben reported a lockup related to rtc. The lockup happens due to:
CPU0 CPU1
rtc_irq_set_state() __run_hrtimer()
spin_lock_irqsave(&rtc->irq_task_lock) rtc_handle_legacy_irq();
spin_lock(&rtc->irq_task_lock);
hrtimer_cancel()
while (callback_running);
So the running callback never finishes as it's blocked on
rtc->irq_task_lock.
Use hrtimer_try_to_cancel() instead and drop rtc->irq_task_lock while
waiting for the callback. Fix this for both rtc_irq_set_state() and
rtc_irq_set_freq().
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reported-by: Ben Greear <greearb@candelatech.com>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Due to the hrtimer self rearming mode a user can DoS the machine simply
because it's starved by hrtimer events.
The RTC hrtimer is self rearming. We really need to limit the frequency
to something sensible.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Ben Greear <greearb@candelatech.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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The code checks the correctness of the parameters, but unconditionally
arms/disarms the hrtimer.
The result is that a random task might arm/disarm rtc timer and surprise
the real owner by either generating events or by stopping them.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Ben Greear <greearb@candelatech.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Dev_opp initial value shoule be ERR_PTR(), IS_ERR() is used to check
error.
Signed-off-by: Jonghwan Choi <jhbird.choi@samsung.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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issue-1
In case combined transfer mode fails halfway, the processing must be stopped halfway.
However currently, the processing is continued.
This patch breaks the processing.
issue-2
Currently, pch_i2c_xfer returns read/write size at that time.
However pch_i2c_xfer must return the number of messages to be read/written.
This patch modifies correctly.
Signed-off-by: Tomoya MORINAGA <tomoya-linux@dsn.okisemi.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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Currently, Combined R/W transfer mode is not supported.
This patch enables Combined R/W transfer mode.
Signed-off-by: Tomoya MORINAGA <tomoya-linux@dsn.okisemi.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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This patch modifies the tegra i2c driver so that it can be initiailized
using the device tree along with the devices connected to the i2c bus.
Signed-off-by: John Bonesio <bones@secretlab.ca>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: OIof Johansson <olof@lixom.net>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: (23 commits)
ceph: document unlocked d_parent accesses
ceph: explicitly reference rename old_dentry parent dir in request
ceph: document locking for ceph_set_dentry_offset
ceph: avoid d_parent in ceph_dentry_hash; fix ceph_encode_fh() hashing bug
ceph: protect d_parent access in ceph_d_revalidate
ceph: protect access to d_parent
ceph: handle racing calls to ceph_init_dentry
ceph: set dir complete frag after adding capability
rbd: set blk_queue request sizes to object size
ceph: set up readahead size when rsize is not passed
rbd: cancel watch request when releasing the device
ceph: ignore lease mask
ceph: fix ceph_lookup_open intent usage
ceph: only link open operations to directory unsafe list if O_CREAT|O_TRUNC
ceph: fix bad parent_inode calc in ceph_lookup_open
ceph: avoid carrying Fw cap during write into page cache
libceph: don't time out osd requests that haven't been received
ceph: report f_bfree based on kb_avail rather than diffing.
ceph: only queue capsnap if caps are dirty
ceph: fix snap writeback when racing with writes
...
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so replace it with mdelay(20).
Fixes build error:
ERROR: "__bad_udelay" [drivers/staging/gma500/psb_gfx.ko] undefined!
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Fix build issue caused by undefined struct scatterlist in
drivers/usb/renesas_usbhs/fifo.c.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Fix build issue caused by undefined struct scatterlist in
drivers/mmc/host/tmio_mmc.c.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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This improves performance since more requests can be merged.
Reviewed-by: Yehuda Sadeh <yehuda@hq.newdream.net>
Signed-off-by: Josh Durgin <josh.durgin@dreamhost.com>
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We were missing this cleanup, so when a device was released
the osd didn't clean up its watchers list, so following notifications
could be slow as osd needed to timeout on the client.
Signed-off-by: Yehuda Sadeh <yehuda@hq.newdream.net>
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no, really, strlen() and snprintf() do not return mode_t values...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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* 'drm-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (135 commits)
drm/radeon/kms: fix DP training for DPEncoderService revision bigger than 1.1
drm/radeon/kms: add missing vddci setting on NI+
drm/radeon: Add a rmb() in IH processing
drm/radeon: ATOM Endian fix for atombios_crtc_program_pll()
drm/radeon: Fix the definition of RADEON_BUF_SWAP_32BIT
drm/radeon: Do an MMIO read on interrupts when not uisng MSIs
drm/radeon: Writeback endian fixes
drm/radeon: Remove a bunch of useless _iomem casts
drm/gem: add support for private objects
DRM: clean up and document parsing of video= parameter
DRM: Radeon: Fix section mismatch.
drm: really make debug levels match in edid failure code
drm/radeon/kms: fix i2c map for rv250/280
drm/nouveau/gr: disable fifo access and idle before suspend ctx unload
drm/nouveau: pass flag to engine fini() method on suspend
drm/nouveau: replace nv04_graph_fifo_access() use with direct reg bashing
drm/nv40/gr: rewrite/split context takedown functions
drm/nouveau: detect disabled device in irq handler and return IRQ_NONE
drm/nouveau: ignore connector type when deciding digital/analog on DVI-I
drm/nouveau: Add a quirk for Gigabyte NX86T
...
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DPEncoderService newer than 1.1 can't properly program the DP (display port)
link training. When facing such version use the DIGxEncoderControl method
instead. Fix DP link training on some R7XX.
Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Need to add vddci setting to pm init as well as
resume. Fixes hangs on load on some boards.
Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=38754
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
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* 'staging-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6: (741 commits)
staging:iio:meter:ade7753 should be 16 bit read not 8 bit for mode register.
staging:iio:kfifo_buf fix double initialization of the ring device structure.
staging:iio:accel:lis3l02dq: fix incorrect pointer passed to spi_set_drvdata.
staging:iio:imu fix missing register table index for some channels
spectra: enable device before poking it
staging: rts_pstor: Fix a miswriting
staging/lirc_bt829: Return -ENODEV when no hardware is found.
staging/lirc_parallel: remove pointless prototypes.
staging/lirc_parallel: fix panic on rmmod
staging:iio:adc:ad7476: Incorrect pointer into spi_set_drvdata.
Staging: zram: Fix kunmapping order
Revert "gma500: Fix dependencies"
gma500: Add medfield header
gma500: wire up the mrst i2c bus from chip_info
gma500: Fix DPU build
gma500: Clean up the DPU config and make it runtime
gma500: resync with Medfield progress
gma500: Use the mrst helpers and power control for mode commit
gma500@ Fix backlight range error
gma500: More Moorestown muddle meddling means MM maybe might modeset
...
Fix up fairly trivial conflicts all over, mostly due to header file
cleanup conflicts, but some deleted files and some just context changes:
- Documentation/feature-removal-schedule.txt
- drivers/staging/bcm/headers.h
- drivers/staging/brcm80211/brcmfmac/dhd_linux.c
- drivers/staging/brcm80211/brcmfmac/dhd_sdio.c
- drivers/staging/brcm80211/brcmfmac/wl_cfg80211.h
- drivers/staging/brcm80211/brcmfmac/wl_iw.c
- drivers/staging/et131x/et131x_netdev.c
- drivers/staging/rtl8187se/ieee80211/ieee80211_softmac.c
- drivers/staging/rtl8192e/r8192E.h
- drivers/staging/usbip/userspace/src/utils.h
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* 'tty-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6: (26 commits)
amba pl011: workaround for uart registers lockup
n_gsm: fix the wrong FCS handling
pch_uart: add missing comment about OKI ML7223
pch_uart: Add MSI support
tty: fix "IRQ45: nobody cared"
PTI feature to allow user to name and mark masterchannel request.
0 for o PTI Makefile bug.
tty: serial: samsung.c remove legacy PM code.
SERIAL: SC26xx: Fix link error.
serial: mrst_max3110: initialize waitqueue earlier
mrst_max3110: Change max missing message priority.
tty: s5pv210: Add delay loop on fifo reset function for UART
tty/serial: Fix XSCALE serial ports, e.g. ce4100
serial: bfin_5xx: fix off-by-one with resource size
drivers/tty: use printk_ratelimited() instead of printk_ratelimit()
tty: n_gsm: Added refcount usage to gsm_mux and gsm_dlci structs
tty: n_gsm: Add raw-ip support
tty: n_gsm: expose gsmtty device nodes at ldisc open time
pch_phub: Fix register miss-setting issue
serial: 8250, increase PASS_LIMIT
...
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* 'usb-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (115 commits)
EHCI: fix direction handling for interrupt data toggles
USB: serial: add IDs for WinChipHead USB->RS232 adapter
USB: OHCI: fix another regression for NVIDIA controllers
usb: gadget: m66592-udc: add pullup function
usb: gadget: m66592-udc: add function for external controller
usb: gadget: r8a66597-udc: add pullup function
usb: renesas_usbhs: support multi driver
usb: renesas_usbhs: inaccessible pipe is not an error
usb: renesas_usbhs: care buff alignment when dma handler
USB: PL2303: correctly handle baudrates above 115200
usb: r8a66597-hcd: fixup USB_PORT_STAT_C_SUSPEND shift
usb: renesas_usbhs: compile/config are rescued
usb: renesas_usbhs: fixup comment-out
usb: update email address in ohci-sh and r8a66597-hcd
usb: r8a66597-hcd: add function for external controller
EHCI: only power off port if over-current is active
USB: mon: Allow to use usbmon without debugfs
USB: EHCI: go back to using the system clock for QH unlinks
ehci: add pci quirk for Ordissimo and RM Slate 100 too
ehci: refactor pci quirk to use standard dmi_check_system method
...
Fix up trivial conflicts in Documentation/feature-removal-schedule.txt
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* 'driver-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6:
updated Documentation/ja_JP/SubmittingPatches
debugfs: add documentation for debugfs_create_x64
uio: uio_pdrv_genirq: Add OF support
firmware: gsmi: remove sysfs entries when unload the module
Documentation/zh_CN: Fix messy code file email-clients.txt
driver core: add more help description for "path to uevent helper"
driver-core: modify FIRMWARE_IN_KERNEL help message
driver-core: Kconfig grammar corrections in firmware configuration
DOCUMENTATION: Replace create_device() with device_create().
DOCUMENTATION: Update overview.txt in Doc/driver-model.
pti: pti_tty_install documentation mispelling.
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* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (99 commits)
drivers/virt: add missing linux/interrupt.h to fsl_hypervisor.c
powerpc/85xx: fix mpic configuration in CAMP mode
powerpc: Copy back TIF flags on return from softirq stack
powerpc/64: Make server perfmon only built on ppc64 server devices
powerpc/pseries: Fix hvc_vio.c build due to recent changes
powerpc: Exporting boot_cpuid_phys
powerpc: Add CFAR to oops output
hvc_console: Add kdb support
powerpc/pseries: Fix hvterm_raw_get_chars to accept < 16 chars, fixing xmon
powerpc/irq: Quieten irq mapping printks
powerpc: Enable lockup and hung task detectors in pseries and ppc64 defeconfigs
powerpc: Add mpt2sas driver to pseries and ppc64 defconfig
powerpc: Disable IRQs off tracer in ppc64 defconfig
powerpc: Sync pseries and ppc64 defconfigs
powerpc/pseries/hvconsole: Fix dropped console output
hvc_console: Improve tty/console put_chars handling
powerpc/kdump: Fix timeout in crash_kexec_wait_realmode
powerpc/mm: Fix output of total_ram.
powerpc/cpufreq: Add cpufreq driver for Momentum Maple boards
powerpc: Correct annotations of pmu registration functions
...
Fix up trivial Kconfig/Makefile conflicts in arch/powerpc, drivers, and
drivers/cpufreq
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* Merge akpm patch series: (122 commits)
drivers/connector/cn_proc.c: remove unused local
Documentation/SubmitChecklist: add RCU debug config options
reiserfs: use hweight_long()
reiserfs: use proper little-endian bitops
pnpacpi: register disabled resources
drivers/rtc/rtc-tegra.c: properly initialize spinlock
drivers/rtc/rtc-twl.c: check return value of twl_rtc_write_u8() in twl_rtc_set_time()
drivers/rtc: add support for Qualcomm PMIC8xxx RTC
drivers/rtc/rtc-s3c.c: support clock gating
drivers/rtc/rtc-mpc5121.c: add support for RTC on MPC5200
init: skip calibration delay if previously done
misc/eeprom: add eeprom access driver for digsy_mtc board
misc/eeprom: add driver for microwire 93xx46 EEPROMs
checkpatch.pl: update $logFunctions
checkpatch: make utf-8 test --strict
checkpatch.pl: add ability to ignore various messages
checkpatch: add a "prefer __aligned" check
checkpatch: validate signature styles and To: and Cc: lines
checkpatch: add __rcu as a sparse modifier
checkpatch: suggest using min_t or max_t
...
Did this as a merge because of (trivial) conflicts in
- Documentation/feature-removal-schedule.txt
- arch/xtensa/include/asm/uaccess.h
that were just easier to fix up in the merge than in the patch series.
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Fix the warning
drivers/connector/cn_proc.c: In function 'proc_ptrace_connector':
drivers/connector/cn_proc.c:176: warning: unused variable 'tracer'
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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When parsing PnP ACPI resource structures, it may happen that some of
the resources are disabled (in which case "the size" of the resource
equals zero).
The current solution is to skip these resources completely - with the
unfortunate side effect that they are not registered despite the fact
that they exist, after all. (The downside of this approach is that
these resources cannot be used as templates for setting the actual
device's resources because they are missing from the template.) The
kernel's APM implementation does not suffer from this problem and
registers all resources regardless of "their size".
This patch fixes a problem with (at least) the vintage IBM ThinkPad 600E
(and most likely also with the 600, 600X, and 770X which have a very
similar layout) where some of its PnP devices support options where
either an IRQ, a DMA, or an IO port is disabled. Without this patch,
the devices can not be configured using the
"/sys/bus/pnp/devices/*/resources" interface.
The manipulation of these resources is important because the 600E has
very demanding requirements. For instance, the number of IRQs is not
sufficient to support all devices of the 600E. Fortunately, some of the
devices, like the sound card's MPU-401 UART, can be configured to not
use any IRQ, hence freeing an IRQ for a device that requires one.
(Still, the device's "ResourceTemplate" requires an IRQ resource
descriptor which cannot be created if the resource has not been
registered in the first place.)
As an example, the dependent sets of the 600E's CSC0103 device (the
MPU-401 UART) are listed, with the patch applied, as:
Dependent: 00 - Priority preferred
port 0x300-0x330, align 0xf, size 0x4, 16-bit address decoding
irq <none> High-Edge
Dependent: 01 - Priority acceptable
port 0x300-0x330, align 0xf, size 0x4, 16-bit address decoding
irq 5,7,2/9,10,11,15 High-Edge
(The same result is obtained when PNPBIOS is used instead of PnP ACPI.)
Without the patch, the IRQ resource in the preferred option is not
listed at all:
Dependent: 00 - Priority preferred
port 0x300-0x330, align 0xf, size 0x4, 16-bit address decoding
Dependent: 01 - Priority acceptable
port 0x300-0x330, align 0xf, size 0x4, 16-bit address decoding
irq 5,7,2/9,10,11,15 High-Edge
And in fact, the 600E's DSDT lists the disabled IRQ as an option, as can
be seen from the following excerpt from the DSDT:
Name (_PRS, ResourceTemplate ()
{
StartDependentFn (0x00, 0x00)
{
IO (Decode16, 0x0300, 0x0330, 0x10, 0x04)
IRQNoFlags () {}
}
StartDependentFn (0x01, 0x00)
{
IO (Decode16, 0x0300, 0x0330, 0x10, 0x04)
IRQNoFlags () {5,7,9,10,11,15}
}
EndDependentFn ()
})
With this patch applied, a user space program - or maybe even the kernel
- can allocate all devices' resources optimally. For the 600E, this
means to find optimal resources for (at least) the serial port, the
parallel port, the infrared port, the MWAVE modem, the sound card, and
the MPU-401 UART.
The patch applies the idea to register disabled resources to all types
of resources, not just to IRQs, DMAs, and IO ports. At the same time,
it mimics the behavior of the "pnp_assign_xxx" functions from
"drivers/pnp/manager.c" where resources with "no size" are considered
disabled.
No regressions were observed on hardware that does not require this
patch.
The patch is applied against 2.6.39.
NB: The kernel's current PnP interface does not allow for disabling individual
resources using the "/sys/bus/pnp/devices/$device/resources" file. Assuming
this could be done, a device could be configured to use a disabled resource
using a simple series of calls:
echo disable > /sys/bus/pnp/devices/$device/resources
echo clear > /sys/bus/pnp/devices/$device/resources
echo set irq disabled > /sys/bus/pnp/devices/$device/resources
echo fill > /sys/bus/pnp/devices/$device/resources
echo activate > /sys/bus/pnp/devices/$device/resources
This patch addresses only the parsing of PnP ACPI devices.
ChangeLog (v1 -> v2):
- extend patch description
- fix typo in patch itself
Signed-off-by: Witold Szczeponik <Witold.Szczeponik@gmx.net>
Cc: Len Brown <lenb@kernel.org>
Cc: Adam Belay <abelay@mit.edu>
Cc: Bjorn Helgaas <bjorn.helgaas@hp.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Using __SPIN_LOCK_UNLOCKED for a dynamically allocated lock is wrong and
breaks the build with PREEMPT_RT_FULL.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Andrew Chew <achew@nvidia.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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We forget to save the return value of the call to
twl_rtc_write_u8(save_control, REG_RTC_CTRL_REG); in 'ret', making the
test of 'ret < 0' dead code since 'ret' then couldn't possibly have
changed since the last test just a few lines above. It also makes us not
detect failures from that specific twl_rtc_write_u8() call.
Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Alexandre Rusev <source@mvista.com>
Cc: "George G. Davis" <gdavis@mvista.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Add support for PMIC8xxx based RTC. PMIC8xxx is Qualcomm's power
management IC that internally houses an RTC module. This driver
communicates with the PMIC module over SSBI bus.
[akpm@linux-foundation.org: cosmetic tweaks]
Acked-by: Wan ZongShun <mcuos.com@gmail.com>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Anirudh Ghayal <aghayal@codeaurora.org>
Signed-off-by: Ashay Jaiswal <ashayj@codeaurora.org>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Cc: Wan ZongShun <mcuos.com@gmail.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Add support for clock gating. Power consumption can be reduced by setting
rtc_clk disabled state except for when RTC related registers are accessed.
Signed-off-by: Donggeun Kim <dg77.kim@samsung.com>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: KyungMin Park <kyungmin.park@samsung.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Ben Dooks <ben@fluff.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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MPC5200B contains a limited version of RTC from MPC5121. Add support for
the RTC on that CPU.
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Anatolij Gustschin <agust@denx.de>
Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Both displays on digsy_mtc board obtain their configuration from microwire
EEPROMs which are connected to the SoC over GPIO lines. We need an easy
way to access the EEPROMs to write the needed display configuration or to
read out the currently programmed configuration. The generic
eeprom_93xx46 SPI driver added by previous patch allows EEPROM access over
sysfs. Using the simple driver added by this patch we provide used GPIO
interface and access control description on the board for generic
eeprom_93xx46 driver and spi_gpio driver.
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Cc: Jonathan Cameron <jic23@cam.ac.uk>
Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Add EEPROM driver for 93xx46 chips. It can also be used with spi_gpio
driver to access 93xx46 EEPROMs connected over GPIO lines. This driver
supports read/write/erase access to the EEPROM chips over sysfs files.
[rdunlap@xenotime.net: fix printk format]
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Cc: Jonathan Cameron <jic23@cam.ac.uk>
Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Fix module tainting message:
sigma: module license 'unspecified' taints kernel.
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Provide the support for auto calibration of ALS Zone boundaries based on
min/max ALS input voltage.
Signed-off-by: Shreshtha Kumar Sahu <shreshthakumar.sahu@stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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We call led_classdev_register/led_classdev_unregister in
create_netxbig_led/delete_netxbig_led, thus make LEDS_NETXBIG depend on
LEDS_CLASS.
This patch fixes below build error if LEDS_CLASS is not configured.
LD .tmp_vmlinux1
drivers/built-in.o: In function `create_netxbig_led':
drivers/leds/leds-netxbig.c:350: undefined reference to `led_classdev_register'
drivers/leds/leds-netxbig.c:361: undefined reference to `led_classdev_unregister'
drivers/built-in.o: In function `delete_netxbig_led':
drivers/leds/leds-netxbig.c:313: undefined reference to `led_classdev_unregister'
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Acked-by: Simon Guinot <sguinot@lacie.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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- return -ENOMEM if kzalloc fails, rather than the current -EINVAL
- fix a memory leak in the case of goto out_unregister_led_cdevs
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Al Viro
Linus Torvalds
Arun Sharma
Sergiu Iordache
Marco Stornelli
Dmitry Torokhov
Christian Glindkamp
Kai.Jiang
Thomas Gleixner
Jonghwan Choi
Tomoya MORINAGA
John Bonesio
Stephen Rothwell
Rafael J. Wysocki
Josh Durgin
Yehuda Sadeh
Jerome Glisse
Alex Deucher
Andrew Morton
Witold Szczeponik
Uwe Kleine-König
Jesper Juhl
Anirudh Ghayal
Donggeun Kim
Dmitry Eremin-Solenikov
Anatolij Gustschin
Randy Dunlap
Shreshtha Kumar Sahu
Axel Lin