7 years agogenirq: Make irq_shutdown() symmetric vs. irq_startup again
Geert Uytterhoeven [Sun, 11 Sep 2011 11:59:27 +0000]
genirq: Make irq_shutdown() symmetric vs. irq_startup again

If an irq_chip provides .irq_shutdown(), but neither of .irq_disable() or
.irq_mask(), free_irq() crashes when jumping to NULL.
Fix this by only trying .irq_disable() and .irq_mask() if there's no
.irq_shutdown() provided.

This revives the symmetry with irq_startup(), which tries .irq_startup(),
.irq_enable(), and irq_unmask(), and makes it consistent with the comment for
irq_chip.irq_shutdown() in <linux/irq.h>, which says:

 * @irq_shutdown: shut down the interrupt (defaults to ->disable if NULL)

This is also how __free_irq() behaved before the big overhaul, cfr. e.g.
3b56f0585fd4c02d047dc406668cb40159b2d340 ("genirq: Remove bogus conditional"),
where the core interrupt code always overrode .irq_shutdown() to
.irq_disable() if .irq_shutdown() was NULL.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: linux-m68k@lists.linux-m68k.org
Link: http://lkml.kernel.org/r/1315742394-16036-2-git-send-email-geert@linux-m68k.org
Cc: stable@kernel.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

7 years agoMerge branch 'fixes' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur...
Linus Torvalds [Sun, 11 Sep 2011 00:28:46 +0000]
Merge branch 'fixes' of ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm

* 'fixes' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm:
  ARM: 7088/1: entry: fix wrong parameter name used in do_thumb_abort
  ARM: 7080/1: l2x0: make sure I&D are not locked down on init
  ARM: 7081/1: mach-integrator: fix the clocksource
  NET: am79c961: fix race in link status code
  ARM: 7067/1: mm: keep significant bits in pfn_valid

7 years agoARM: 7088/1: entry: fix wrong parameter name used in do_thumb_abort
Janusz Krzysztofik [Thu, 8 Sep 2011 17:45:40 +0000]
ARM: 7088/1: entry: fix wrong parameter name used in do_thumb_abort

Commit be020f8618ca, "ARM: entry: abort-macro: specify registers to be
used for macros", while replacing register numbers with macro parameter
names, mismatched the name used for r1. For me, this resulted in user
space built for EABI with -march=armv4t -mtune=arm920t -mthumb-interwork
-mthumb broken on my OMAP1510 based Amstrad Delta (old ABI and no thumb
still worked for me though).

Fix this by using correct parameter name fsr instead of mismatched psr,
used by callers for another purpose.

Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

7 years agobacklight: Declare backlight_types[] const
Bart Van Assche [Sat, 10 Sep 2011 18:13:01 +0000]
backlight: Declare backlight_types[] const

Since backlight_types[] isn't modified, let's declare it const.  That
was probably the intention of the author of commit bb7ca747f8d6
("backlight: add backlight type"), via which the "const char const *"
construct was introduced.  The duplicate const was detected by sparse.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Cc: Matthew Garrett <mjg@redhat.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

7 years agoMerge branch 'for-linus' of git://neil.brown.name/md
Linus Torvalds [Sat, 10 Sep 2011 17:19:15 +0000]
Merge branch 'for-linus' of git://neil.brown.name/md

* 'for-linus' of git://neil.brown.name/md:
  md: Fix handling for devices from 2TB to 4TB in 0.90 metadata.
  md/raid1,10: Remove use-after-free bug in make_request.
  md/raid10: unify handling of write completion.
  Avoid dereferencing a 'request_queue' after last close.

7 years agomd: Fix handling for devices from 2TB to 4TB in 0.90 metadata.
NeilBrown [Sat, 10 Sep 2011 07:21:28 +0000]
md: Fix handling for devices from 2TB to 4TB in 0.90 metadata.

0.90 metadata uses an unsigned 32bit number to count the number of
kilobytes used from each device.
This should allow up to 4TB per device.
However we multiply this by 2 (to get sectors) before casting to a
larger type, so sizes above 2TB get truncated.

Also we allow rdev->sectors to be larger than 4TB, so it is possible
for the array to be resized larger than the metadata can handle.
So make sure rdev->sectors never exceeds 4TB when 0.90 metadata is in
used.

Also the sanity check at the end of super_90_load should include level
1 as it used ->size too. (RAID0 and Linear don't use ->size at all).

Reported-by: Pim Zandbergen <P.Zandbergen@macroscoop.nl>
Cc: stable@kernel.org
Signed-off-by: NeilBrown <neilb@suse.de>

7 years agomd/raid1,10: Remove use-after-free bug in make_request.
NeilBrown [Sat, 10 Sep 2011 07:21:23 +0000]
md/raid1,10: Remove use-after-free bug in make_request.

A single request to RAID1 or RAID10 might result in multiple
requests if there are known bad blocks that need to be avoided.

To detect if we need to submit another write request we test:
  if (sectors_handled < (bio->bi_size >> 9)) {

However this is after we call **_write_done() so the 'bio' no longer
belongs to us - the writes could have completed and the bio freed.

So move the **_write_done call until after the test against
bio->bi_size.

This addresses https://bugzilla.kernel.org/show_bug.cgi?id=41862

Reported-by: Bruno Wolff III <bruno@wolff.to>
Tested-by: Bruno Wolff III <bruno@wolff.to>
Signed-off-by: NeilBrown <neilb@suse.de>

7 years agomd/raid10: unify handling of write completion.
NeilBrown [Sat, 10 Sep 2011 07:21:17 +0000]
md/raid10: unify handling of write completion.

A write can complete at two different places:
1/ when the last member-device write completes, through
   raid10_end_write_request
2/ in make_request() when we remove the initial bias from ->remaining.

These two should do exactly the same thing and the comment says they
do, but they don't.

So factor the correct code out into a function and call it in both
places.  This makes the code much more similar to RAID1.

The difference is only significant if there is an error, and they
usually take a while, so it is unlikely that there will be an error
already when make_request is completing, so this is unlikely to cause
real problems.

Signed-off-by: NeilBrown <neilb@suse.de>

7 years agoAvoid dereferencing a 'request_queue' after last close.
NeilBrown [Sat, 10 Sep 2011 07:20:21 +0000]
Avoid dereferencing a 'request_queue' after last close.

On the last close of an 'md' device which as been stopped, the device
is destroyed and in particular the request_queue is freed.  The free
is done in a separate thread so it might happen a short time later.

__blkdev_put calls bdev_inode_switch_bdi *after* ->release has been
called.

Since commit f758eeabeb96f878c860e8f110f94ec8820822a9
bdev_inode_switch_bdi will dereference the 'old' bdi, which lives
inside a request_queue, to get a spin lock.  This causes the last
close on an md device to sometime take a spin_lock which lives in
freed memory - which results in an oops.

So move the called to bdev_inode_switch_bdi before the call to
->release.

Cc: Christoph Hellwig <hch@lst.de>
Cc: Hugh Dickins <hughd@google.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Wu Fengguang <fengguang.wu@intel.com>
Acked-by: Wu Fengguang <fengguang.wu@intel.com>
Cc: stable@kernel.org
Signed-off-by: NeilBrown <neilb@suse.de>

7 years agoPCI: Remove MRRS modification from MPS setting code
Jon Mason [Thu, 8 Sep 2011 21:41:18 +0000]
PCI: Remove MRRS modification from MPS setting code

Modifying the Maximum Read Request Size to 0 (value of 128Bytes) has
massive negative ramifications on some devices.  Without knowing which
devices have this issue, do not modify from the default value when
walking the PCI-E bus in pcie_bus_safe mode.  Also, make pcie_bus_safe
the default procedure.

Tested-by: Sven Schnelle <svens@stackframe.org>
Tested-by: Simon Kirby <sim@hostway.ca>
Tested-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Reported-and-tested-by: Eric Dumazet <eric.dumazet@gmail.com>
Reported-and-tested-by: Niels Ole Salscheider <niels_ole@salscheider-online.de>
References: https://bugzilla.kernel.org/show_bug.cgi?id=42162
Signed-off-by: Jon Mason <mason@myri.com>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

7 years agoFix pointer dereference before call to pcie_bus_configure_settings
Shyam Iyer [Thu, 8 Sep 2011 21:41:17 +0000]
Fix pointer dereference before call to pcie_bus_configure_settings

Commit b03e7495a862 ("PCI: Set PCI-E Max Payload Size on fabric")
introduced a potential NULL pointer dereference in calls to
pcie_bus_configure_settings due to attempts to access pci_bus self
variables when the self pointer is NULL.

To correct this, verify that the self pointer in pci_bus is non-NULL
before dereferencing it.

Reported-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Shyam Iyer <shyam_iyer@dell.com>
Signed-off-by: Jon Mason <mason@myri.com>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

7 years agoMerge branch 'for-linus' of git://dev.laptop.org/users/cjb/mmc
Linus Torvalds [Fri, 9 Sep 2011 22:50:25 +0000]
Merge branch 'for-linus' of git://dev.laptop.org/users/cjb/mmc

* 'for-linus' of git://dev.laptop.org/users/cjb/mmc:
  mmc: sdhci-s3c: Fix mmc card I/O problem
  mmc: sd: UHS-I bus speed should be set last in UHS initialization
  mmc: sdhi: initialise mmc_data->flags before use
  mmc: core: use non-reentrant workqueue for clock gating
  mmc: core: prevent aggressive clock gating racing with ios updates
  mmc: rename mmc_host_clk_{ungate|gate} to mmc_host_clk_{hold|release}
  mmc: sdhci-esdhc-imx: add missing inclusion of linux/module.h

7 years agoMerge branch 'for-linus' of git://ceph.newdream.net/git/ceph-client
Linus Torvalds [Fri, 9 Sep 2011 22:48:34 +0000]
Merge branch 'for-linus' of git://ceph.newdream.net/git/ceph-client

* 'for-linus' of git://ceph.newdream.net/git/ceph-client:
  libceph: fix leak of osd structs during shutdown
  ceph: fix memory leak
  ceph: fix encoding of ino only (not relative) paths
  libceph: fix msgpool

7 years agovfs: automount should ignore LOOKUP_FOLLOW
Miklos Szeredi [Mon, 5 Sep 2011 16:06:26 +0000]
vfs: automount should ignore LOOKUP_FOLLOW

Prior to 2.6.38 automount would not trigger on either stat(2) or
lstat(2) on the automount point.

After 2.6.38, with the introduction of the ->d_automount()
infrastructure, stat(2) and others would start triggering automount
while lstat(2), etc. still would not.  This is a regression and a
userspace ABI change.

Problem originally reported here:

  http://thread.gmane.org/gmane.linux.kernel.autofs/6098

It appears that there was an attempt at fixing various userspace tools
to not trigger the automount.  But since the stat system call is
rather common it is impossible to "fix" all userspace.

This patch reverts the original behavior, which is to not trigger on
stat(2) and other symlink following syscalls.

[ It's not really clear what the right behavior is.  Apparently Solaris
  does the "automount on stat, leave alone on lstat".  And some programs
  can get unhappy when "stat+open+fstat" ends up giving a different
  result from the fstat than from the initial stat.

  But the change in 2.6.38 resulted in problems for some people, so
  we're going back to old behavior.  Maybe we can re-visit this
  discussion at some future date  - Linus ]

Reported-by: Leonardo Chiquitto <leonardo.lists@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Acked-by: Ian Kent <raven@themaw.net>
Cc: David Howells <dhowells@redhat.com>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

7 years agoMerge branch 'fixes' of git://git.infradead.org/users/vkoul/slave-dma
Linus Torvalds [Thu, 8 Sep 2011 23:49:32 +0000]
Merge branch 'fixes' of git://git.infradead.org/users/vkoul/slave-dma

* 'fixes' of git://git.infradead.org/users/vkoul/slave-dma:
  dmaengine/ste_dma40: fix memory leak due to prepared descriptors
  dmaengine/ste_dma40: fix Oops due to double free of client descriptor
  dmaengine/ste_dma40: remove duplicate call to d40_pool_lli_free().
  dmaengine/ste_dma40: add missing kernel doc for pending_queue

7 years agoMerge branch 'for-linus' of git://opensource.wolfsonmicro.com/regmap
Linus Torvalds [Thu, 8 Sep 2011 23:47:52 +0000]
Merge branch 'for-linus' of git://opensource.wolfsonmicro.com/regmap

* 'for-linus' of git://opensource.wolfsonmicro.com/regmap:
  regmap: Remove bitrotted module_put()s

7 years agoMerge branch 'for-linus' of git://twin.jikos.cz/jikos/hid
Linus Torvalds [Thu, 8 Sep 2011 23:45:37 +0000]
Merge branch 'for-linus' of git://twin.jikos.cz/jikos/hid

* 'for-linus' of git://twin.jikos.cz/jikos/hid:
  HID: wacom: Unregister sysfs attributes on remove
  HID: wacom: Fix error path of power-supply initialization
  HID: add support for HuiJia USB Gamepad connector
  HID: magicmouse: ignore 'ivalid report id' while switching modes, v2
  HID: magicmouse: Set resolution of touch surfaces

7 years agoMerge branch 'for-31-rc5/i2c-fixes' of git://git.fluff.org/bjdooks/linux
Linus Torvalds [Thu, 8 Sep 2011 23:42:34 +0000]
Merge branch 'for-31-rc5/i2c-fixes' of git://git.fluff.org/bjdooks/linux

* 'for-31-rc5/i2c-fixes' of git://git.fluff.org/bjdooks/linux:
  i2c-tegra: fix possible race condition after tx
  i2c-tegra: add I2C_FUNC_SMBUS_EMUL
  i2c-tegra: Add of_match_table
  i2c-pxa2xx: return proper error code in ce4100_i2c_probe error paths

7 years agoMerge branch 'amd/fixes' of git://git.8bytes.org/scm/iommu
Linus Torvalds [Thu, 8 Sep 2011 23:39:47 +0000]
Merge branch 'amd/fixes' of git://git.8bytes.org/scm/iommu

* 'amd/fixes' of git://git.8bytes.org/scm/iommu:
  iommu/amd: Don't take domain->lock recursivly
  iommu/amd: Make sure iommu->need_sync contains correct value

7 years agoregulator: fix kernel-doc warning in consumer.h
Randy Dunlap [Thu, 8 Sep 2011 17:16:47 +0000]
regulator: fix kernel-doc warning in consumer.h

Fix kernel-doc warning about internal/private data by marking it
as "private:" so that kernel-doc will ignore it.

  Warning(include/linux/regulator/consumer.h:128): No description found for parameter 'ret'

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

7 years agowireless: fix kernel-doc warning in net/cfg80211.h
Randy Dunlap [Thu, 8 Sep 2011 17:16:50 +0000]
wireless: fix kernel-doc warning in net/cfg80211.h

Fix kernel-doc warning in net/cfg80211.h:

  Warning(include/net/cfg80211.h:1884): No description found for parameter 'registered'

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

7 years agoMerge branch 'timers-fixes-for-linus' of git://tesla.tglx.de/git/linux-2.6-tip
Linus Torvalds [Wed, 7 Sep 2011 20:03:48 +0000]
Merge branch 'timers-fixes-for-linus' of git://tesla.tglx.de/git/linux-2.6-tip

* 'timers-fixes-for-linus' of git://tesla.tglx.de/git/linux-2.6-tip:
  rtc: twl: Fix registration vs. init order
  rtc: Initialized rtc_time->tm_isdst
  rtc: Fix RTC PIE frequency limit
  rtc: rtc-twl: Remove lockdep related local_irq_enable()
  rtc: rtc-twl: Switch to using threaded irq
  rtc: ep93xx: Fix 'rtc' may be used uninitialized warning
  alarmtimers: Avoid possible denial of service with high freq periodic timers
  alarmtimers: Memset itimerspec passed into alarm_timer_get
  alarmtimers: Avoid possible null pointer traversal

7 years agoMerge branch 'sched-fixes-for-linus' of git://tesla.tglx.de/git/linux-2.6-tip
Linus Torvalds [Wed, 7 Sep 2011 20:01:34 +0000]
Merge branch 'sched-fixes-for-linus' of git://tesla.tglx.de/git/linux-2.6-tip

* 'sched-fixes-for-linus' of git://tesla.tglx.de/git/linux-2.6-tip:
  sched: Fix a memory leak in __sdt_free()
  sched: Move blk_schedule_flush_plug() out of __schedule()
  sched: Separate the scheduler entry for preemption

7 years agoMerge branch 'perf-fixes-for-linus' of git://tesla.tglx.de/git/linux-2.6-tip
Linus Torvalds [Wed, 7 Sep 2011 20:00:11 +0000]
Merge branch 'perf-fixes-for-linus' of git://tesla.tglx.de/git/linux-2.6-tip

* 'perf-fixes-for-linus' of git://tesla.tglx.de/git/linux-2.6-tip:
  x86, perf: Check that current->mm is alive before getting user callchain
  perf_event: Fix broken calc_timer_values()
  perf events: Fix slow and broken cgroup context switch code

7 years agoMerge branch 'linux-next' of git://git.infradead.org/ubifs-2.6 and git://git.infradea...
Linus Torvalds [Wed, 7 Sep 2011 16:51:43 +0000]
Merge branch 'linux-next' of git://git.infradead.org/ubifs-2.6 and git://git.infradead.org/ubi-2.6

* branch 'linux-next' of git://git.infradead.org/ubifs-2.6:
  UBIFS: not build debug messages with CONFIG_UBIFS_FS_DEBUG disabled

* branch 'linux-next' of git://git.infradead.org/ubi-2.6:
  UBI: do not link debug messages when debugging is disabled

7 years agoMerge branch 'hwmon-for-linus' of git://github.com/groeck/linux
Linus Torvalds [Wed, 7 Sep 2011 15:11:43 +0000]
Merge branch 'hwmon-for-linus' of git://github.com/groeck/linux

* 'hwmon-for-linus' of git://github.com/groeck/linux:
  hwmon: (ucd9000/ucd9200) Optimize array walk
  hwmon: (max16065) Add chip access warning to documentation
  hwmon: (max16065) Fix current calculation

7 years agoMerge branch 'for-linus' of git://github.com/ericvh/linux
Linus Torvalds [Wed, 7 Sep 2011 14:48:00 +0000]
Merge branch 'for-linus' of git://github.com/ericvh/linux

* 'for-linus' of git://github.com/ericvh/linux:
  fs/9p: Use protocol-defined value for lock/getlock 'type' field.
  fs/9p: Always ask new inode in lookup for cache mode disabled
  fs/9p: Add OS dependent open flags in 9p protocol
  net/9p: Fix kernel crash with msize 512K
  fs/9p: Don't update file type when updating file attributes
  fs/9p: Add fid before dentry instantiation

7 years agoMerge branch 'stable/bug.fixes' of git://oss.oracle.com/git/kwilk/xen
Linus Torvalds [Wed, 7 Sep 2011 14:46:48 +0000]
Merge branch 'stable/bug.fixes' of git://oss.oracle.com/git/kwilk/xen

* 'stable/bug.fixes' of git://oss.oracle.com/git/kwilk/xen:
  xen/smp: Warn user why they keel over - nosmp or noapic and what to use instead.
  xen: x86_32: do not enable iterrupts when returning from exception in interrupt context
  xen: use maximum reservation to limit amount of usable RAM

7 years agoMerge branch 'kvm-updates/3.1' of git://github.com/avikivity/kvm
Linus Torvalds [Wed, 7 Sep 2011 14:45:43 +0000]
Merge branch 'kvm-updates/3.1' of git://github.com/avikivity/kvm

* 'kvm-updates/3.1' of git://github.com/avikivity/kvm:
  KVM: Fix instruction size issue in pvclock scaling

7 years agoMerge branches 'upstream-fixes' and 'magicmouse' into for-linus
Jiri Kosina [Wed, 7 Sep 2011 11:53:17 +0000]
Merge branches 'upstream-fixes' and 'magicmouse' into for-linus

7 years agoHID: wacom: Unregister sysfs attributes on remove
David Herrmann [Mon, 5 Sep 2011 16:45:29 +0000]
HID: wacom: Unregister sysfs attributes on remove

HID devices can be hotplugged so we should unregister all sysfs attributes when
removing a driver. Otherwise, manually unloading the wacom-driver will not
remove the sysfs attributes. Only when the device is disconnected, they are
removed, eventually.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

7 years agoHID: wacom: Fix error path of power-supply initialization
David Herrmann [Mon, 5 Sep 2011 16:45:28 +0000]
HID: wacom: Fix error path of power-supply initialization

power_supply_unregister() must not be called if power_supply_register() failed.
The wdata->psy.dev pointer may point to invalid memory after a failed
power_supply_register() and hence wacom_remove() will fail while calling
power_supply_unregister().

This changes the wacom_probe function to fail if it cannot register the
power_supply devices. If we would want to keep the previous behaviour we had to
keep some flag about the power_supply state and check it on wacom_remove, but
this seems inappropriate here. Hence, we simply fail, too, if
power_supply_register fails.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

7 years agoARM: 7080/1: l2x0: make sure I&D are not locked down on init
Linus Walleij [Tue, 6 Sep 2011 06:45:46 +0000]
ARM: 7080/1: l2x0: make sure I&D are not locked down on init

Fighting unfixed U-Boots and other beasts that may the cache in
a locked-down state when starting the kernel, we make sure to
disable all cache lock-down when initializing the l2x0 so we
are in a known state.

Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
Cc: Rabin Vincent <rabin.vincent@stericsson.com>
Cc: Adrian Bunk <adrian.bunk@movial.com>
Cc: Rob Herring <robherring2@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Reviewed-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Reported-by: Jan Rinze <janrinze@gmail.com>
Tested-by: Robert Marklund <robert.marklund@stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

7 years agoARM: 7081/1: mach-integrator: fix the clocksource
Linus Walleij [Tue, 6 Sep 2011 07:08:13 +0000]
ARM: 7081/1: mach-integrator: fix the clocksource

I was intrigued by the fact that the clock stood still on
the Integrator, but it wasn't strange at all, because the
timer was set up all wrong and probably has been for a
while. With this patch the clock starts ticking again:
make the timer periodic (reload), |= on the divisor bit
and load the timer before starting it.

Cc: stable@kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

7 years agoi2c-tegra: fix possible race condition after tx
Doug Anderson [Tue, 30 Aug 2011 17:46:10 +0000]
i2c-tegra: fix possible race condition after tx

In tegra_i2c_fill_tx_fifo, once we have finished pushing all the bytes
to the I2C hardware controller, the interrupt might happen before we
have updated i2c_dev->msg_buf_remaining at the end of the function.
Then, in tegra_i2c_isr, we will call again tegra_i2c_fill_tx_fifo
triggering weird behaviour. This has been shown to happen under real
conditions.

Signed-off-by: Doug Anderson <dianders@chromium.org>
Tested-by: Vincent Palatin <vpalatin@chromium.org>
Acked-by: Rhyland Klein <rklein@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>

7 years agoi2c-tegra: add I2C_FUNC_SMBUS_EMUL
Mike Rapoport [Tue, 30 Aug 2011 17:46:09 +0000]
i2c-tegra: add I2C_FUNC_SMBUS_EMUL

Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>

7 years agoi2c-tegra: Add of_match_table
John Bonesio [Tue, 30 Aug 2011 17:46:08 +0000]
i2c-tegra: Add of_match_table

This patch was intended to be part of 7ca2d1a105a239e300b937e9c41a10a4bd08f569
"i2c: Tegra: Add DeviceTree support". However, an early version of that patch,
which was missing a chunk, was applied to next-i2c. This change is that
missing chunk.

Signed-off-by: John Bonesio <bones@secretlab.ca>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>

7 years agoi2c-pxa2xx: return proper error code in ce4100_i2c_probe error paths
Axel Lin [Tue, 30 Aug 2011 06:37:37 +0000]
i2c-pxa2xx: return proper error code in ce4100_i2c_probe error paths

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>

7 years agohwmon: (ucd9000/ucd9200) Optimize array walk
Jean Delvare [Wed, 31 Aug 2011 15:53:41 +0000]
hwmon: (ucd9000/ucd9200) Optimize array walk

Rewrite the loop walking the id array during probe. The new code is
better adapted to a null-terminated array, and is also clearer and
more efficient than the original.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Axel Lin <axel.lin@gmail.com>
Cc: Guenter Roeck <guenter.roeck@ericsson.com>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>

7 years agohwmon: (max16065) Add chip access warning to documentation
Guenter Roeck [Tue, 30 Aug 2011 05:53:20 +0000]
hwmon: (max16065) Add chip access warning to documentation

The chips supported by the max16065 driver should not be accessed using direct
i2ctools commands. Add warning to driver documentation to alert users.

Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Acked-by: Jean Delvare <khali@linux-fr.org>

7 years agohwmon: (max16065) Fix current calculation
Guenter Roeck [Sun, 28 Aug 2011 20:01:49 +0000]
hwmon: (max16065) Fix current calculation

Current calculation is completely wrong. Add missing brackets to fix it.

Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Acked-by: Jean Delvare <khali@linux-fr.org>
Cc: stable@kernel.org # 3.0+

7 years agofs/9p: Use protocol-defined value for lock/getlock 'type' field.
Jim Garlick [Sat, 20 Aug 2011 18:51:18 +0000]
fs/9p: Use protocol-defined value for lock/getlock 'type' field.

Signed-off-by: Jim Garlick <garlick@llnl.gov>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>

7 years agofs/9p: Always ask new inode in lookup for cache mode disabled
Aneesh Kumar K.V [Tue, 16 Aug 2011 16:49:28 +0000]
fs/9p: Always ask new inode in lookup for cache mode disabled

This make sure we don't end up reusing the unlinked inode object.
The ideal way is to use inode i_generation. But i_generation is
not available in userspace always.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>

7 years agofs/9p: Add OS dependent open flags in 9p protocol
Aneesh Kumar K.V [Wed, 3 Aug 2011 14:25:32 +0000]
fs/9p: Add OS dependent open flags in 9p protocol

Some of the flags are OS/arch dependent we add a 9p
protocol value which maps to asm-generic/fcntl.h values in Linux
Based on the original patch from Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>

7 years agonet/9p: Fix kernel crash with msize 512K
Aneesh Kumar K.V [Wed, 17 Aug 2011 16:56:04 +0000]
net/9p: Fix kernel crash with msize 512K

With msize equal to 512K (PAGE_SIZE * VIRTQUEUE_NUM), we hit multiple
crashes. This patch fix those.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>

7 years agofs/9p: Don't update file type when updating file attributes
Aneesh Kumar K.V [Mon, 25 Jul 2011 18:06:33 +0000]
fs/9p: Don't update file type when updating file attributes

We should only update attributes that we can change on stat2inode.
Also do file type initialization in v9fs_init_inode.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>

7 years agofs/9p: Add fid before dentry instantiation
Aneesh Kumar K.V [Mon, 25 Jul 2011 18:06:32 +0000]
fs/9p: Add fid before dentry instantiation

d_instantiate marks the dentry positive. So a parallel lookup and mkdir of
the directory can find dentry that doesn't have fid attached. This can result
in both the code path doing v9fs_fid_add which results in v9fs_dentry leak.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>

7 years agoregmap: Remove bitrotted module_put()s
Mark Brown [Mon, 5 Sep 2011 15:07:47 +0000]
regmap: Remove bitrotted module_put()s

The conversion to per bus type registration functions means we don't need
to do module_get()s to hold the bus types in memory (their users will link
to them) so we removed all those calls. This left module_put() calls in
the cleanup paths which aren't needed and which cause unbalanced puts if
we ever try to unload anything.

Reported-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

7 years agodmaengine/ste_dma40: fix memory leak due to prepared descriptors
Per Forlin [Mon, 29 Aug 2011 11:33:35 +0000]
dmaengine/ste_dma40: fix memory leak due to prepared descriptors

Prepared descriptors that are not submitted will not be freed. Add
prepared descriptor to a list to be able to release them upon
dmaengine_terminate_all().

Signed-off-by: Per Forlin <per.forlin@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

7 years agodmaengine/ste_dma40: fix Oops due to double free of client descriptor
Per Forlin [Mon, 29 Aug 2011 11:33:34 +0000]
dmaengine/ste_dma40: fix Oops due to double free of client descriptor

The client list may exist in two lists at the same time. This makes free
fail since the same desc is freed multiple times. Remove desc from
client list when adding it to the pending queue. Move free of client owned
descriptors from free_dma() to terminate_all().

Unable to handle kernel paging request at virtual address 00100104
pgd = dea8c000
[00100104] *pgd=1ea62831, *pte=00000000, *ppte=00000000
Internal error: Oops: 817 [#1] PREEMPT SMP
Modules linked in:
CPU: 0    Not tainted  (3.1.0-rc3+ #58)
PC is at d40_free_chan_resources+0x64/0x330

Signed-off-by: Per Forlin <per.forlin@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

7 years agodmaengine/ste_dma40: remove duplicate call to d40_pool_lli_free().
Per Forlin [Mon, 29 Aug 2011 11:33:33 +0000]
dmaengine/ste_dma40: remove duplicate call to d40_pool_lli_free().

d40_desc_free() already calls d40_pool_lli_free().

Signed-off-by: Per Forlin <per.forlin@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

7 years agodmaengine/ste_dma40: add missing kernel doc for pending_queue
Per Forlin [Mon, 29 Aug 2011 11:33:32 +0000]
dmaengine/ste_dma40: add missing kernel doc for pending_queue

Signed-off-by: Per Forlin <per.forlin@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

7 years agoNET: am79c961: fix race in link status code
Russell King [Mon, 5 Sep 2011 07:58:29 +0000]
NET: am79c961: fix race in link status code

The link status code operates from a timer, and writes the index
register without first taking a lock.  A well-placed interrupt
between writing the index register and reading the data register
could change the index register on us, which will return wrong data.
Add the necessary lock.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

7 years agoLinux 3.1-rc5
Linus Torvalds [Sun, 4 Sep 2011 22:45:10 +0000]
Linux 3.1-rc5

7 years agoARM: 7067/1: mm: keep significant bits in pfn_valid
Mark Rutland [Tue, 30 Aug 2011 16:45:10 +0000]
ARM: 7067/1: mm: keep significant bits in pfn_valid

When ARCH_HAS_HOLES_MEMORYMODEL is selected, pfn_valid calls
memblock_is_memory to test validity of a pfn:

> memblock_is_memory(pfn << PAGE_SHIFT);

On LPAE systems this cuts off the top bits, as the shift occurs before
the value is promoted to a phys_addr_t.

This patch replaces the shift with a call to __pfn_to_phys (which casts
pfn to phys_addr_t before shifting), preventing the loss of significant
bits.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

7 years agoMerge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Linus Torvalds [Fri, 2 Sep 2011 15:27:01 +0000]
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  drm/radeon/kms: make sure pci max read request size is valid on evergreen+ (v2)
  drm/radeon/kms: set a default max_pixel_clock

7 years agoMerge branch 'for-linus' of git://oss.sgi.com/xfs/xfs
Linus Torvalds [Fri, 2 Sep 2011 15:25:23 +0000]
Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs

* 'for-linus' of git://oss.sgi.com/xfs/xfs:
  xfs: fix ->write_inode return values
  xfs: fix xfs_mark_inode_dirty during umount
  xfs: deprecate the nodelaylog mount option

7 years agoiommu/amd: Don't take domain->lock recursivly
Joerg Roedel [Fri, 2 Sep 2011 12:19:50 +0000]
iommu/amd: Don't take domain->lock recursivly

The domain_flush_devices() function takes the domain->lock.
But this function is only called from update_domain() which
itself is already called unter the domain->lock. This causes
a deadlock situation when the dma-address-space of a domain
grows larger than 1GB.

Cc: stable@kernel.org
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>

7 years agoiommu/amd: Make sure iommu->need_sync contains correct value
Joerg Roedel [Fri, 2 Sep 2011 12:10:32 +0000]
iommu/amd: Make sure iommu->need_sync contains correct value

The value is only set to true but never set back to false,
which causes to many completion-wait commands to be sent to
hardware. Fix it with this patch.

Cc: stable@kernel.org
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>

7 years agoMerge branch 'fortglx/3.1/tip/timers/rtc' of git://git.linaro.org/people/jstultz...
Thomas Gleixner [Fri, 2 Sep 2011 08:50:05 +0000]
Merge branch 'fortglx/3.1/tip/timers/rtc' of git://git.linaro.org/people/jstultz/linux into timers/urgent

7 years agodrm/radeon/kms: make sure pci max read request size is valid on evergreen+ (v2)
Alex Deucher [Thu, 1 Sep 2011 17:46:15 +0000]
drm/radeon/kms: make sure pci max read request size is valid on evergreen+ (v2)

If the bios or OS sets the pci max read request size to 0 or an
invalid value (6,7), it can result in a hang or slowdown.  Check
and set it to something sane if it's invalid.

Fixes:
https://bugzilla.kernel.org/show_bug.cgi?id=42162

v2: use pci reg defines from include/linux/pci_regs.h

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@kernel.org
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

7 years agoxen/smp: Warn user why they keel over - nosmp or noapic and what to use instead.
Konrad Rzeszutek Wilk [Thu, 1 Sep 2011 13:48:27 +0000]
xen/smp: Warn user why they keel over - nosmp or noapic and what to use instead.

We have hit a couple of customer bugs where they would like to
use those parameters to run an UP kernel - but both of those
options turn of important sources of interrupt information so
we end up not being able to boot. The correct way is to
pass in 'dom0_max_vcpus=1' on the Xen hypervisor line and
the kernel will patch itself to be a UP kernel.

Fixes bug: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=637308

CC: stable@kernel.org
Acked-by: Ian Campbell <Ian.Campbell@eu.citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

7 years agoxen: x86_32: do not enable iterrupts when returning from exception in interrupt context
Igor Mammedov [Thu, 1 Sep 2011 11:46:55 +0000]
xen: x86_32: do not enable iterrupts when returning from exception in interrupt context

If vmalloc page_fault happens inside of interrupt handler with interrupts
disabled then on exit path from exception handler when there is no pending
interrupts, the following code (arch/x86/xen/xen-asm_32.S:112):

cmpw $0x0001, XEN_vcpu_info_pending(%eax)
sete XEN_vcpu_info_mask(%eax)

will enable interrupts even if they has been previously disabled according to
eflags from the bounce frame (arch/x86/xen/xen-asm_32.S:99)

testb $X86_EFLAGS_IF>>8, 8+1+ESP_OFFSET(%esp)
setz XEN_vcpu_info_mask(%eax)

Solution is in setting XEN_vcpu_info_mask only when it should be set
according to
cmpw $0x0001, XEN_vcpu_info_pending(%eax)
but not clearing it if there isn't any pending events.

Reproducer for bug is attached to RHBZ 707552

CC: stable@kernel.org
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Acked-by: Jeremy Fitzhardinge <jeremy@goop.org>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

7 years agoxfs: fix ->write_inode return values
Christoph Hellwig [Sat, 27 Aug 2011 05:57:55 +0000]
xfs: fix ->write_inode return values

Currently we always redirty an inode that was attempted to be written out
synchronously but has been cleaned by an AIL pushed internall, which is
rather bogus.  Fix that by doing the i_update_core check early on and
return 0 for it.  Also include async calls for it, as doing any work for
those is just as pointless.  While we're at it also fix the sign for the
EIO return in case of a filesystem shutdown, and fix the completely
non-sensical locking around xfs_log_inode.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Alex Elder <aelder@sgi.com>
(cherry picked from commit 297db93bb74cf687510313eb235a7aec14d67e97)

Signed-off-by: Alex Elder <aelder@sgi.com>

7 years agoxen: use maximum reservation to limit amount of usable RAM
David Vrabel [Fri, 19 Aug 2011 14:57:16 +0000]
xen: use maximum reservation to limit amount of usable RAM

Use the domain's maximum reservation to limit the amount of extra RAM
for the memory balloon. This reduces the size of the pages tables and
the amount of reserved low memory (which defaults to about 1/32 of the
total RAM).

On a system with 8 GiB of RAM with the domain limited to 1 GiB the
kernel reports:

Before:

Memory: 627792k/4472000k available

After:

Memory: 549740k/11132224k available

A increase of about 76 MiB (~1.5% of the unused 7 GiB).  The reserved
low memory is also reduced from 253 MiB to 32 MiB.  The total
additional usable RAM is 329 MiB.

For dom0, this requires at patch to Xen ('x86: use 'dom0_mem' to limit
the number of pages for dom0') (c/s 23790)

CC: stable@kernel.org
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

7 years agoxfs: fix xfs_mark_inode_dirty during umount
Christoph Hellwig [Sat, 27 Aug 2011 05:57:44 +0000]
xfs: fix xfs_mark_inode_dirty during umount

During umount we do not add a dirty inode to the lru and wait for it to
become clean first, but force writeback of data and metadata with
I_WILL_FREE set.  Currently there is no way for XFS to detect that the
inode has been redirtied for metadata operations, as we skip the
mark_inode_dirty call during teardown.  Fix this by setting i_update_core
nanually in that case, so that the inode gets flushed during inode reclaim.

Alternatively we could enable calling mark_inode_dirty for inodes in
I_WILL_FREE state, and let the VFS dirty tracking handle this.  I decided
against this as we will get better I/O patterns from reclaim compared to
the synchronous writeout in write_inode_now, and always marking the inode
dirty in some way from xfs_mark_inode_dirty is a better safetly net in
either case.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Alex Elder <aelder@sgi.com>
(cherry picked from commit da6742a5a4cc844a9982fdd936ddb537c0747856)

Signed-off-by: Alex Elder <aelder@sgi.com>

7 years agolibceph: fix leak of osd structs during shutdown
Sage Weil [Wed, 31 Aug 2011 21:45:53 +0000]
libceph: fix leak of osd structs during shutdown

We want to remove all OSDs, not just those on the idle LRU.

Signed-off-by: Sage Weil <sage@newdream.net>

7 years agoMerge tag 'for_linus-20110831' of git://github.com/tytso/ext4
Linus Torvalds [Wed, 31 Aug 2011 22:08:19 +0000]
Merge tag 'for_linus-20110831' of git://github.com/tytso/ext4

* tag 'for_linus-20110831' of git://github.com/tytso/ext4:
  ext4: remove i_mutex lock in ext4_evict_inode to fix lockdep complaining

7 years agommc: sdhci-s3c: Fix mmc card I/O problem
Girish K S [Fri, 26 Aug 2011 09:28:18 +0000]
mmc: sdhci-s3c: Fix mmc card I/O problem

This patch fixes the problem in sdhci-s3c host driver for Samsung Soc's.
During the card identification stage the mmc core driver enumerates for
the best bus width in combination with the highest available data rate.
It starts enumerating from the highest bus width (8) to lowest width (1).

In case of few MMC cards the 4-bit bus enumeration fails and tries
the 1-bit bus enumeration. When switched to 1-bit bus mode the host driver
has to clear the previous bus width setting and apply the new setting.

The current patch will clear the previous bus mode and apply the new
mode setting.

Signed-off-by: Girish K S <girish.shivananjappa@linaro.org>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Cc: <stable@kernel.org>
Signed-off-by: Chris Ball <cjb@laptop.org>

7 years agommc: sd: UHS-I bus speed should be set last in UHS initialization
Subhash Jadavani [Tue, 9 Aug 2011 06:49:31 +0000]
mmc: sd: UHS-I bus speed should be set last in UHS initialization

mmc_sd_init_uhs_card function sets the driver type, current limit
and bus speed mode on card as well as on host controller side.

Currently bus speed mode is set by sending CMD6 to card and
immediately setting the timing mode in host controller. But
then before initiating tuning sequence, it also tries to set
current limit by sending CMD6 to card which results in data
timeout errors in controller if bus speed mode is SDR50/SDR104 mode.

So basically bus speed mode should be set only after current limit
is set in the card and immediately after setting the bus speed mode,
tuning sequence should be initiated.

Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org>
Reviewed-by: Arindam Nath <arindam.nath@amd.com>
Signed-off-by: Chris Ball <cjb@laptop.org>

7 years agommc: sdhi: initialise mmc_data->flags before use
Simon Horman [Fri, 19 Aug 2011 01:07:07 +0000]
mmc: sdhi: initialise mmc_data->flags before use

This corrects a logic error that I introduced in
"mmc: sdhi: Add write16_hook"

Reported-by: Magnus Damm <magnus.damm@gmail.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Chris Ball <cjb@laptop.org>

7 years agommc: core: use non-reentrant workqueue for clock gating
Mika Westerberg [Thu, 18 Aug 2011 12:23:49 +0000]
mmc: core: use non-reentrant workqueue for clock gating

The default multithread workqueue can cause the same work to be executed
concurrently on a different CPUs. This isn't really suitable for clock
gating as it might already gated the clock and gating it twice results both
host->clk_old and host->ios.clock to be set to 0.

To prevent this from happening we use system_nrt_wq instead.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Chris Ball <cjb@laptop.org>
Cc: <stable@kernel.org>
Signed-off-by: Chris Ball <cjb@laptop.org>

7 years agommc: core: prevent aggressive clock gating racing with ios updates
Mika Westerberg [Thu, 18 Aug 2011 12:23:48 +0000]
mmc: core: prevent aggressive clock gating racing with ios updates

We have seen at least two different races when clock gating kicks in in a
middle of ios structure update.

First one happens when ios->clock is changed outside of aggressive clock
gating framework, for example via mmc_set_clock(). The race might happen
when we run following code:

mmc_set_ios():
...
if (ios->clock > 0)
mmc_set_ungated(host);

Now if gating kicks in right after the condition check we end up setting
host->clk_gated to false even though we have just gated the clock. Next
time a request is started we try to ungate and restore the clock in
mmc_host_clk_hold(). However since we have host->clk_gated set to false the
original clock is not restored.

This eventually will cause the host controller to hang since its clock is
disabled while we are trying to issue a request. For example on Intel
Medfield platform we see:

[   13.818610] mmc2: Timeout waiting for hardware interrupt.
[   13.818698] sdhci: =========== REGISTER DUMP (mmc2)===========
[   13.818753] sdhci: Sys addr: 0x00000000 | Version:  0x00008901
[   13.818804] sdhci: Blk size: 0x00000000 | Blk cnt:  0x00000000
[   13.818853] sdhci: Argument: 0x00000000 | Trn mode: 0x00000000
[   13.818903] sdhci: Present:  0x1fff0000 | Host ctl: 0x00000001
[   13.818951] sdhci: Power:    0x0000000d | Blk gap:  0x00000000
[   13.819000] sdhci: Wake-up:  0x00000000 | Clock:    0x00000000
[   13.819049] sdhci: Timeout:  0x00000000 | Int stat: 0x00000000
[   13.819098] sdhci: Int enab: 0x00ff00c3 | Sig enab: 0x00ff00c3
[   13.819147] sdhci: AC12 err: 0x00000000 | Slot int: 0x00000000
[   13.819196] sdhci: Caps:     0x6bee32b2 | Caps_1:   0x00000000
[   13.819245] sdhci: Cmd:      0x00000000 | Max curr: 0x00000000
[   13.819292] sdhci: Host ctl2: 0x00000000
[   13.819331] sdhci: ADMA Err: 0x00000000 | ADMA Ptr: 0x00000000
[   13.819377] sdhci: ===========================================
[   13.919605] mmc2: Reset 0x2 never completed.

and it never recovers.

Second race might happen while running mmc_power_off():

static void mmc_power_off(struct mmc_host *host)
{
host->ios.clock = 0;
host->ios.vdd = 0;

[ clock gating kicks in here ]

/*
 * Reset ocr mask to be the highest possible voltage supported for
 * this mmc host. This value will be used at next power up.
 */
host->ocr = 1 << (fls(host->ocr_avail) - 1);

if (!mmc_host_is_spi(host)) {
host->ios.bus_mode = MMC_BUSMODE_OPENDRAIN;
host->ios.chip_select = MMC_CS_DONTCARE;
}
host->ios.power_mode = MMC_POWER_OFF;
host->ios.bus_width = MMC_BUS_WIDTH_1;
host->ios.timing = MMC_TIMING_LEGACY;
mmc_set_ios(host);
}

If the clock gating worker kicks in while we are only partially updated the
ios structure the host controller gets incomplete ios and might not work as
supposed. Again on Intel Medfield platform we get:

[    4.185349] kernel BUG at drivers/mmc/host/sdhci.c:1155!
[    4.185422] invalid opcode: 0000 [#1] PREEMPT SMP
[    4.185509] Modules linked in:
[    4.185565]
[    4.185608] Pid: 4, comm: kworker/0:0 Not tainted 3.0.0+ #240 Intel Corporation Medfield/iCDKA
[    4.185742] EIP: 0060:[<c136364e>] EFLAGS: 00010083 CPU: 0
[    4.185827] EIP is at sdhci_set_power+0x3e/0xd0
[    4.185891] EAX: f5ff98e0 EBX: f5ff98e0 ECX: 00000000 EDX: 00000001
[    4.185970] ESI: f5ff977c EDI: f5ff9904 EBP: f644fe98 ESP: f644fe94
[    4.186049]  DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068
[    4.186125] Process kworker/0:0 (pid: 4, ti=f644e000 task=f644c0e0 task.ti=f644e000)
[    4.186219] Stack:
[    4.186257]  f5ff98e0 f644feb0 c1365173 00000282 f5ff9460 f5ff96e0 f5ff96e0 f644feec
[    4.186418]  c1355bd8 f644c0e0 c1499c3d f5ff96e0 f644fed4 00000006 f5ff96e0 00000286
[    4.186579]  f644fedc c107922b f644feec 00000286 f5ff9460 f5ff9700 f644ff10 c135839e
[    4.186739] Call Trace:
[    4.186802]  [<c1365173>] sdhci_set_ios+0x1c3/0x340
[    4.186883]  [<c1355bd8>] mmc_gate_clock+0x68/0x120
[    4.186963]  [<c1499c3d>] ? _raw_spin_unlock_irqrestore+0x4d/0x60
[    4.187052]  [<c107922b>] ? trace_hardirqs_on+0xb/0x10
[    4.187134]  [<c135839e>] mmc_host_clk_gate_delayed+0xbe/0x130
[    4.187219]  [<c105ec09>] ? process_one_work+0xf9/0x5b0
[    4.187300]  [<c135841d>] mmc_host_clk_gate_work+0xd/0x10
[    4.187379]  [<c105ec82>] process_one_work+0x172/0x5b0
[    4.187457]  [<c105ec09>] ? process_one_work+0xf9/0x5b0
[    4.187538]  [<c1358410>] ? mmc_host_clk_gate_delayed+0x130/0x130
[    4.187625]  [<c105f3c8>] worker_thread+0x118/0x330
[    4.187700]  [<c1496cee>] ? preempt_schedule+0x2e/0x50
[    4.187779]  [<c105f2b0>] ? rescuer_thread+0x1f0/0x1f0
[    4.187857]  [<c1062cf4>] kthread+0x74/0x80
[    4.187931]  [<c1062c80>] ? __init_kthread_worker+0x60/0x60
[    4.188015]  [<c149acfa>] kernel_thread_helper+0x6/0xd
[    4.188079] Code: 81 fa 00 00 04 00 0f 84 a7 00 00 00 7f 21 81 fa 80 00 00 00 0f 84 92 00 00 00 81 fa 00 00 0
[    4.188780] EIP: [<c136364e>] sdhci_set_power+0x3e/0xd0 SS:ESP 0068:f644fe94
[    4.188898] ---[ end trace a7b23eecc71777e4 ]---

This BUG() comes from the fact that ios.power_mode was still in previous
value (MMC_POWER_ON) and ios.vdd was set to zero.

We prevent these by inhibiting the clock gating while we update the ios
structure.

Both problems can be reproduced by simply running the device in a reboot
loop.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Chris Ball <cjb@laptop.org>
Cc: <stable@kernel.org>
Signed-off-by: Chris Ball <cjb@laptop.org>

7 years agommc: rename mmc_host_clk_{ungate|gate} to mmc_host_clk_{hold|release}
Mika Westerberg [Thu, 18 Aug 2011 12:23:47 +0000]
mmc: rename mmc_host_clk_{ungate|gate} to mmc_host_clk_{hold|release}

As per suggestion by Linus Walleij:

  > If you think the names of the functions are confusing then
  > you may rename them, say like this:
  >
  > mmc_host_clk_ungate() -> mmc_host_clk_hold()
  > mmc_host_clk_gate() -> mmc_host_clk_release()
  >
  > Which would make the usecases more clear

(This is CC'd to stable@ because the next two patches, which fix
observable races, depend on it.)

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Cc: <stable@kernel.org>
Signed-off-by: Chris Ball <cjb@laptop.org>

7 years agoMerge branch 'for-linus' of git://neil.brown.name/md
Linus Torvalds [Wed, 31 Aug 2011 16:02:06 +0000]
Merge branch 'for-linus' of git://neil.brown.name/md

* 'for-linus' of git://neil.brown.name/md:
  md/raid5: fix a hang on device failure.
  md: fix clearing of 'blocked' flag in the presence of bad blocks.
  md/linear: avoid corrupting structure while waiting for rcu_free to complete.
  md: use REQ_NOIDLE flag in md_super_write()
  md: ensure changes to 'write-mostly' are reflected in metadata.
  md: report failure if a 'set faulty' request doesn't.

7 years agoMerge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Linus Torvalds [Wed, 31 Aug 2011 15:58:36 +0000]
Merge branch 'merge' of git://git./linux/kernel/git/benh/powerpc

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
  powerpc/p1023rds: Fix the error of bank-width of nor flash
  powerpc/85xx: enable caam crypto driver by default
  powerpc/85xx: enable the audio drivers in the defconfigs

7 years agoext4: remove i_mutex lock in ext4_evict_inode to fix lockdep complaining
Jiaying Zhang [Wed, 31 Aug 2011 15:50:51 +0000]
ext4: remove i_mutex lock in ext4_evict_inode to fix lockdep complaining

The i_mutex lock and flush_completed_IO() added by commit 2581fdc810
in ext4_evict_inode() causes lockdep complaining about potential
deadlock in several places.  In most/all of these LOCKDEP complaints
it looks like it's a false positive, since many of the potential
circular locking cases can't take place by the time the
ext4_evict_inode() is called; but since at the very least it may mask
real problems, we need to address this.

This change removes the flush_completed_IO() and i_mutex lock in
ext4_evict_inode().  Instead, we take a different approach to resolve
the software lockup that commit 2581fdc810 intends to fix.  Rather
than having ext4-dio-unwritten thread wait for grabing the i_mutex
lock of an inode, we use mutex_trylock() instead, and simply requeue
the work item if we fail to grab the inode's i_mutex lock.

This should speed up work queue processing in general and also
prevents the following deadlock scenario: During page fault,
shrink_icache_memory is called that in turn evicts another inode B.
Inode B has some pending io_end work so it calls ext4_ioend_wait()
that waits for inode B's i_ioend_count to become zero.  However, inode
B's ioend work was queued behind some of inode A's ioend work on the
same cpu's ext4-dio-unwritten workqueue.  As the ext4-dio-unwritten
thread on that cpu is processing inode A's ioend work, it tries to
grab inode A's i_mutex lock.  Since the i_mutex lock of inode A is
still hold before the page fault happened, we enter a deadlock.

Signed-off-by: Jiaying Zhang <jiayingz@google.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

7 years agox86, perf: Check that current->mm is alive before getting user callchain
Andrey Vagin [Tue, 30 Aug 2011 08:32:36 +0000]
x86, perf: Check that current->mm is alive before getting user callchain

An event may occur when an mm is already released.

I added an event in dequeue_entity() and caught a panic with
the following backtrace:

[  434.421110] BUG: unable to handle kernel NULL pointer dereference at 0000000000000050
[  434.421258] IP: [<ffffffff810464ac>] __get_user_pages_fast+0x9c/0x120
...
[  434.421258] Call Trace:
[  434.421258]  [<ffffffff8101ae81>] copy_from_user_nmi+0x51/0xf0
[  434.421258]  [<ffffffff8109a0d5>] ? sched_clock_local+0x25/0x90
[  434.421258]  [<ffffffff8101b048>] perf_callchain_user+0x128/0x170
[  434.421258]  [<ffffffff811154cd>] ? __perf_event_header__init_id+0xed/0x100
[  434.421258]  [<ffffffff81116690>] perf_prepare_sample+0x200/0x280
[  434.421258]  [<ffffffff81118da8>] __perf_event_overflow+0x1b8/0x290
[  434.421258]  [<ffffffff81065240>] ? tg_shares_up+0x0/0x670
[  434.421258]  [<ffffffff8104fe1a>] ? walk_tg_tree+0x6a/0xb0
[  434.421258]  [<ffffffff81118f44>] perf_swevent_overflow+0xc4/0xf0
[  434.421258]  [<ffffffff81119150>] do_perf_sw_event+0x1e0/0x250
[  434.421258]  [<ffffffff81119204>] perf_tp_event+0x44/0x70
[  434.421258]  [<ffffffff8105701f>] ftrace_profile_sched_block+0xdf/0x110
[  434.421258]  [<ffffffff8106121d>] dequeue_entity+0x2ad/0x2d0
[  434.421258]  [<ffffffff810614ec>] dequeue_task_fair+0x1c/0x60
[  434.421258]  [<ffffffff8105818a>] dequeue_task+0x9a/0xb0
[  434.421258]  [<ffffffff810581e2>] deactivate_task+0x42/0xe0
[  434.421258]  [<ffffffff814bc019>] thread_return+0x191/0x808
[  434.421258]  [<ffffffff81098a44>] ? switch_task_namespaces+0x24/0x60
[  434.421258]  [<ffffffff8106f4c4>] do_exit+0x464/0x910
[  434.421258]  [<ffffffff8106f9c8>] do_group_exit+0x58/0xd0
[  434.421258]  [<ffffffff8106fa57>] sys_exit_group+0x17/0x20
[  434.421258]  [<ffffffff8100b202>] system_call_fastpath+0x16/0x1b

Signed-off-by: Andrey Vagin <avagin@openvz.org>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: stable@kernel.org
Link: http://lkml.kernel.org/r/1314693156-24131-1-git-send-email-avagin@openvz.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>

7 years agoperf_event: Fix broken calc_timer_values()
Eric B Munson [Thu, 23 Jun 2011 20:34:38 +0000]
perf_event: Fix broken calc_timer_values()

We detected a serious issue with PERF_SAMPLE_READ and
timing information when events were being multiplexing.

Samples would have time_running > time_enabled. That
was easy to reproduce with a libpfm4 example (ran 3
times to cause multiplexing on Core 2):

 $ syst_smpl -e uops_retired:freq=1 &
 $ syst_smpl -e uops_retired:freq=1 &
 $ syst_smpl -e uops_retired:freq=1 &
 IIP:0x0000000040062d ... PERIOD:2355332948 ENA=40144625315 RUN=60014875184
 syst_smpl: WARNING: time_running > time_enabled
63277537998 uops_retired:freq=1 , scaled

The bug was not present in kernel up to (and including) 3.0. It turns
out the bug was introduced by the following commit:

commit c4794295917ebeda8013b6cb9c8d71ab4f74a1fa

    events: Move lockless timer calculation into helper function

The parameters of the function got reversed yet the call sites
were not updated to reflect the change. That lead to time_running
and time_enabled being swapped. That had no effect when there was
no multiplexing because in that case time_running = time_enabled
but it would show up in any other scenario.

Signed-off-by: Stephane Eranian <eranian@google.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/20110829124112.GA4828@quad
Signed-off-by: Ingo Molnar <mingo@elte.hu>

7 years agodrm/radeon/kms: set a default max_pixel_clock
Dave Airlie [Tue, 30 Aug 2011 19:22:04 +0000]
drm/radeon/kms: set a default max_pixel_clock

On some Power rv100 cards, we have no ATY OF table, but we have
no combios table either, and hence we refuse all modes on VGA-0
since we end up with a 0 max pixel clock.

Signed-off-by: Dave Airlie <airlied@redhat.com>
Cc: stable@kernel.org
Reviewed-by: Alex Deucher <alexdeucher@gmail.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>

7 years agomd/raid5: fix a hang on device failure.
NeilBrown [Wed, 31 Aug 2011 02:49:14 +0000]
md/raid5: fix a hang on device failure.

Waiting for a 'blocked' rdev to become unblocked in the raid5d thread
cannot work with internal metadata as it is the raid5d thread which
will clear the blocked flag.
This wasn't a problem in 3.0 and earlier as we only set the blocked
flag when external metadata was used then.
However we now set it always, so we need to be more careful.

Signed-off-by: NeilBrown <neilb@suse.de>

7 years agopowerpc/p1023rds: Fix the error of bank-width of nor flash
Chunhe Lan [Fri, 12 Aug 2011 11:00:09 +0000]
powerpc/p1023rds: Fix the error of bank-width of nor flash

In the p1023rds, a physical bus of nor flash is 16 bits width.
The bank-width is width (in bytes) of the bus width. So, the
value of bank-width of nor flash is not one, and it should be
two.

Signed-off-by: Chunhe Lan <Chunhe.Lan@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

7 years agopowerpc/85xx: enable caam crypto driver by default
Kim Phillips [Fri, 22 Jul 2011 20:48:08 +0000]
powerpc/85xx: enable caam crypto driver by default

corenet based SoCs have SEC4 h/w, so enable the SEC4 driver,
caam, and the algorithms it supports, and disable the
SEC2/3 driver, talitos.

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

7 years agopowerpc/85xx: enable the audio drivers in the defconfigs
Timur Tabi [Tue, 16 Aug 2011 22:44:39 +0000]
powerpc/85xx: enable the audio drivers in the defconfigs

Enable the audio drivers in the non-corenet 85xx defconfigs so that audio
is enabled on the Freescale P1022DS reference board.

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

7 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
Linus Torvalds [Tue, 30 Aug 2011 18:28:18 +0000]
Merge git://git./linux/kernel/git/davem/sparc

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
  sparc64: Only Panther cheetah+ chips have POPC.

7 years agoMerge branch 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied...
Linus Torvalds [Tue, 30 Aug 2011 17:34:24 +0000]
Merge branch 'drm-fixes' of git://git./linux/kernel/git/airlied/drm-2.6

* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
  drm/radeon/kms: add s/r quirk for Compaq Presario V5245EU
  drm/radeon/kms: evergreen & ni reset SPI block on CP resume
  drm: Fix the number of connector and encoder to cleanup functions

7 years agobitops: Move find_next_bit.o from lib-y to obj-y
Geert Uytterhoeven [Tue, 30 Aug 2011 13:17:03 +0000]
bitops: Move find_next_bit.o from lib-y to obj-y

If there are no builtin users of find_next_bit_le() and
find_next_zero_bit_le(), these functions are not present in the kernel
image, causing m68k allmodconfig to fail with:

  ERROR: "find_next_zero_bit_le" [fs/ufs/ufs.ko] undefined!
  ERROR: "find_next_bit_le" [fs/udf/udf.ko] undefined!
  ...

This started to happen after commit 171d809df189 ("m68k: merge mmu and
non-mmu bitops.h"), as m68k had its own inline versions before.

commit 63e424c84429 ("arch: remove CONFIG_GENERIC_FIND_{NEXT_BIT,
BIT_LE, LAST_BIT}") added find_last_bit.o to obj-y (so it's always
included), but find_next_bit.o to lib-y (so it gets removed by the
linker if there are no builtin users).

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Greg Ungerer <gerg@uclinux.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

7 years agoKVM: Fix instruction size issue in pvclock scaling
Duncan Sands [Tue, 30 Aug 2011 08:58:22 +0000]
KVM: Fix instruction size issue in pvclock scaling

Commit de2d1a524e94 ("KVM: Fix register corruption in pvclock_scale_delta")
introduced a mul instruction that may have only a memory operand; the
assembler therefore cannot select the correct size:

   pvclock.s:229: Error: no instruction mnemonic suffix given and no register
operands; can't size instruction

In this example the assembler is:

         #APP
         mul -48(%rbp) ; shrd $32, %rdx, %rax
         #NO_APP

A simple solution is to use mulq.

Signed-off-by: Duncan Sands <baldrick@free.fr>
Signed-off-by: Avi Kivity <avi@redhat.com>

7 years agodrm/radeon/kms: add s/r quirk for Compaq Presario V5245EU
Alex Deucher [Mon, 29 Aug 2011 14:55:25 +0000]
drm/radeon/kms: add s/r quirk for Compaq Presario V5245EU

Fixes resume on Compaq Presario V5245EU.

Fixes:
https://bugzilla.kernel.org/show_bug.cgi?id=41642

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>

7 years agodrm/radeon/kms: evergreen & ni reset SPI block on CP resume
Jerome Glisse [Wed, 24 Aug 2011 20:00:17 +0000]
drm/radeon/kms: evergreen & ni reset SPI block on CP resume

For some reason SPI block is in broken state after module
unloading. This lead to broken rendering after reloading
module. Fix this by reseting SPI block in CP resume function

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>

7 years agomd: fix clearing of 'blocked' flag in the presence of bad blocks.
NeilBrown [Tue, 30 Aug 2011 06:20:17 +0000]
md: fix clearing of 'blocked' flag in the presence of bad blocks.

When the 'blocked' flag on a device is cleared while there are
unacknowledged bad blocks we must fail the device.  This is needed for
backwards compatability of the interface.

The code currently uses the wrong test for "unacknowledged bad blocks
exist".  Change it to the right test.

Signed-off-by: NeilBrown <neilb@suse.de>

7 years agosparc64: Only Panther cheetah+ chips have POPC.
David S. Miller [Tue, 30 Aug 2011 04:14:29 +0000]
sparc64: Only Panther cheetah+ chips have POPC.

Signed-off-by: David S. Miller <davem@davemloft.net>

7 years agoMerge branch 'fixes' of master.kernel.org:/home/rmk/linux-2.6-arm
Linus Torvalds [Mon, 29 Aug 2011 23:34:07 +0000]
Merge branch 'fixes' of /home/rmk/linux-2.6-arm

* 'fixes' of master.kernel.org:/home/rmk/linux-2.6-arm:
  ARM: pm: avoid writing the auxillary control register for ARMv7
  ARM: pm: some ARMv7 requires a dsb in resume to ensure correctness
  ARM: pm: arm920/926: fix number of registers saved
  ARM: pm: CPU specific code should not overwrite r1 (v:p offset)
  ARM: 7066/1: proc-v7: disable SCTLR.TE when disabling MMU
  ARM: 7065/1: kexec: ensure new kernel is entered in ARM state
  ARM: 7003/1: vexpress: Add clock definition for the SP805.
  ARM: 7051/1: cpuimx* boards: fix mach-types errors
  ARM: 7019/1: Footbridge: select CLKEVT_I8253 for ARCH_NETWINDER
  ARM: 7015/1: ARM errata: Possible cache data corruption with hit-under-miss enabled
  ARM: 7014/1: cache-l2x0: Fix L2 Cache size calculation.
  ARM: 6967/1: ep93xx: ts72xx: fix board model detection
  ARM: 6965/1: ep93xx: add model detection for ts-7300 and ts-7400 boards
  ARM: cache: detect VIPT aliasing I-cache on ARMv6
  ARM: twd: register clockevents device before enabling PPI
  ARM: realview: ensure visibility of writes during reset
  ARM: perf: make name of arm_pmu_type consistent
  ARM: perf: fix prototype of release_pmu
  ARM: fix perf build with uclibc toolchains

7 years agoMerge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc
Linus Torvalds [Mon, 29 Aug 2011 23:33:32 +0000]
Merge branch 'fixes' of git://git./linux/kernel/git/arm/linux-arm-soc

* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc:
  ARM: mach-footbridge: add missing header file <video/vga.h>
  ARM: mach-orion5x: add missing header file <linux/vga.h>
  arm: fix compile failure in orion5x/dns323-setup.c
  at91: at91sam9261.c: fix typo in t2_clk alias for atmel_tcb.0
  ARM: S5P: fix bug in spdif_clk_get_rate
  ARM: EXYNOS4: Add restart hook for proper reboot
  ARM: EXYNOS4: Increase reset delay for USB HOST PHY
  ARM: S5P: add required chained_irq_enter/exit to gpio-int code
  ARM: EXYNOS4: add required chained_irq_enter/exit to eint code
  ARM: SAMSUNG: Add chained enrty/exit call to timer interrupt handler
  ARM: S3C64XX: Fix build break in PM debug
  ARM: S5PV210: Fix build warning
  ARM: EXYNOS4: Fix the IRQ definitions for MIPI CSIS device
  ARM: EXYNOS4: remove duplicated inclusion
  ARM: EXYNOS4: Fix wrong devname to support clkdev
  ARM: EXYNOS4: Use the correct regulator names on universal_c210
  ARM: SAMSUNG: Fix Section mismatch in samsung_bl_set()
  ARM: S5P64X0: Replace irq_gc_ack() with irq_gc_ack_set_bit()

7 years agoremove remaining references to nfsservctl
Stephen Rothwell [Mon, 29 Aug 2011 00:38:57 +0000]
remove remaining references to nfsservctl

These were missed in commit f5b940997397 "All Arch: remove linkage
for sys_nfsservctl system call" due to them having no sys_ prefix
(presumably).

Cc: NeilBrown <neilb@suse.de>
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-parisc@vger.kernel.org
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: James Bottomley <James.Bottomley@hansenpartnership.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

7 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Linus Torvalds [Mon, 29 Aug 2011 20:38:29 +0000]
Merge git://git./linux/kernel/git/davem/net

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (42 commits)
  netpoll: fix incorrect access to skb data in __netpoll_rx
  cassini: init before use in cas_interruptN.
  can: ti_hecc: Fix uninitialized spinlock in probe
  can: ti_hecc: Fix unintialized variable
  net: sh_eth: fix the compile error
  net/phy: fix DP83865 phy interrupt handler
  sendmmsg/sendmsg: fix unsafe user pointer access
  ibmveth: Fix leak when recycling skb and hypervisor returns error
  arp: fix rcu lockdep splat in arp_process()
  bridge: fix a possible use after free
  bridge: Pseudo-header required for the checksum of ICMPv6
  mcast: Fix source address selection for multicast listener report
  MAINTAINERS: Update GIT trees for network development
  ath9k: Fix PS wrappers in ath9k_set_coverage_class
  carl9170: Fix mismatch in carl9170_op_set_key mutex lock-unlock
  wl12xx: add max_sched_scan_ssids value to the hw description
  wl12xx: Fix validation of pm_runtime_get_sync return value
  wl12xx: Remove obsolete testmode NVS push command
  bcma: add uevent to the bus, to autoload drivers
  ath9k_hw: Fix STA (AR9485) bringup issue due to incorrect MAC address
  ...

7 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
Linus Torvalds [Mon, 29 Aug 2011 20:37:42 +0000]
Merge git://git./linux/kernel/git/davem/sparc

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
  sparc32,sun4d: Change IPI IRQ level to prevent collision between IPI and timer interrupt
  sparc: Remove another reference to nfsservctl

7 years agoMerge branch 'rmobile-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Mon, 29 Aug 2011 20:37:17 +0000]
Merge branch 'rmobile-fixes-for-linus' of git://git./linux/kernel/git/lethal/sh-3.x

* 'rmobile-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-3.x:
  ARM: mach-shmobile: sh7372 CMT3 and CMT4 clock support
  ARM: mach-shmobile: sh7372 MSIOF clock support
  ARM: mach-shmobile: clock-sh7372: fixup USB-DMAC1 settings
  ARM: mach-shmobile: clock-sh73a0: tidyup CKSCR main clock selecter
  ARM: mach-shmobile: Remove 3DG/SGX from sh7372 INTCS
  ARM: mach-shmobile: mackerel: Add USB-DMA ID
  mmc: sdhi, mmcif: zboot: Correct clock disable logic
  ARM: mach-shmobile: ag5evm: SDHI requires waiting for idle
  ARM: static should be at beginning of declaration
  ARM: mach-shmobile: Use CMT2 for timer on sh7372
  ARM: mach-shmobile: sh7372: Add USB-DMAC support

7 years agoMerge branch 'sh-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Mon, 29 Aug 2011 20:34:48 +0000]
Merge branch 'sh-fixes-for-linus' of git://git./linux/kernel/git/lethal/sh-3.x

* 'sh-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-3.x:
  sh: fix the compile error in setup-sh7757.c
  serial: sh-sci: report CTS as active for get_mctrl
  sh: Add unaligned memory access for PC relative intructions
  sh: Fix unaligned memory access for branches without delay slots
  sh: Fix up fallout from cpuidle changes.
  serial: sh-sci: console Runtime PM support
  sh: Fix conflicting definitions of ptrace_triggered
  serial: sh-sci: fix DMA build by including dma-mapping.h
  serial: sh-sci: Fix up default regtype probing.
  sh: intc: enable both edges GPIO interrupts on sh7372
  shwdt: fix usage of mod_timer
  clocksource: sh_cmt: wait for CMCNT on init V2

7 years agoMAINTAINERS: change framebuffer maintainer
Florian Tobias Schandinat [Sat, 27 Aug 2011 19:32:34 +0000]
MAINTAINERS: change framebuffer maintainer

As Paul has not much time for it I take over maintaining the
framebuffer subsystem.

Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>