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The following commits change gpio-omap to use dynamic
IRQ allocation:
25db711 gpio/omap: Fix IRQ handling for SPARSE_IRQ
384ebe1 gpio/omap: Add DT support to GPIO driver
With dynamic allocation of IRQ the usage of OMAP_GPIO_IRQ
is no longer valid. We must be using gpio_to_irq() instead.
Signed-off-by: Tarun Kanti DebBarma <tarun.kanti@ti.com>
[tony@atomide.com: updated comments]
Signed-off-by: Tony Lindgren <tony@atomide.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/cleanup
* 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP2+: Fix L4_EMU_34XX_BASE error after iomap changes
ARM: OMAP2+: Limit omap_read/write usage to legacy USB drivers
ARM: OMAP: Remove plat/io.h by splitting it into mach/io.h and mach/hardware.h
ARM: OMAP2+: Move most of plat/io.h into local iomap.h
ARM: OMAP1: Move most of plat/io.h into local iomap.h
ARM: OMAP1: Move 16xx GPIO system clock to platform init code
ARM: OMAP: Move omap_init_consistent_dma_size() to local common.h
ARM: OMAP2+: Move SDRC related functions from io.h into local common.h
ARM: OMAP2+: Drop DISPC L3 firewall code
ARM: OMAP2xxx: PM: remove obsolete timer disable code in the suspend path
ARM: OMAP: McSPI: Remove unused flag from struct omap2_mcspi_device_config
(update to latest rmk/for-arm-soc branch)
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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With the introduction of iomap changes platform init code
fails for emu.c if CONFIG_OMAP3_EMU is selected:
arch/arm/mach-omap2/emu.c:35:8: error:
'L4_EMU_34XX_BASE' undeclared here (not in a function)
Signed-off-by: Tony Lindgren <tony@atomide.com>
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* 'cleanup-3.4' of git://github.com/hzhuang1/linux: (2 commits)
rtc: sa1100: remove verification code of alarm
rtc: sa1100: remove periodic code
(update to v3.3-rc5)
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Since next alarm time is already calculated in rtc common interface, we
needn't keep this logic in rtc-sa1100.c any more.
Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
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Since periodic timer is already supported by hrtimer in rtc interface,
we needn't keep the duplicated code in rtc-sa1100.c any more.
Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
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* davinci/cleanups:
ARM: davinci: add back dummy header files
ARM: davinci: dm644x: don't force vpfe registeration on all boards
ARM: davinci: dm644x: fix inconsistent variable naming
ARM: davinci: dm644x: improve readability using macro
ARM: davinci: streamline sysmod access
ARM: davinci: create new common platform header for davinci
ARM: davinci: dm646x: move private definitions to C file
ARM: davinci: dm365: move private definitions to C file
ARM: davinci: dm644x: move private definitions to C file
Conflicts:
arch/arm/mach-davinci/board-dm644x-evm.c
arch/arm/mach-davinci/board-neuros-osd2.c
arch/arm/mach-davinci/board-sffsdr.c
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The mach/dm365.h and mach/dm646xh headers are currently being included
in some device drivers. The removal of those includes is already merged
in some subsystem trees, but adding the dummy files ensures that this
branch can be built standalone.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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into next/cleanup
* 'imx-cleanup' of git://git.pengutronix.de/git/imx/linux-2.6: (247 commits)
ARM: Remove redundant ';' from avic_irq_set_priority()
ARM: mx3: Let mx31 and mx35 share the same CCM header file
ARM: plat-mxc: audmux-v1: Remove unneeded ifdef's
Update to v3.3-rc3
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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One semi-colon at the end of the return statement is sufficient.
Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Let mx31 and mx35 share the same CCM header file
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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As we are able to build a single kernel that can run on mx21 and mx27,
there is no need for the ifdef's anymore inside audmux-v1.c.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Couple of minor driver fixes.
* tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (max34440) Fix resetting temperature history
hwmon: (f75375s) Fix register write order when setting fans to full speed
hwmon: (ads1015) Fix file leak in probe function
hwmon: (max6639) Fix PPR register initialization to set both channels
hwmon: (max6639) Fix FAN_FROM_REG calculation
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git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild
three kbuild fixes for 3.3:
- make deb-pkg symlink race fix.
- make coccicheck fix.
- Dropping the check for modutils. This is not a regression, but
allows the module-init-tools replacement kmod work with the 3.3
kernel.
* 'rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
coccicheck: change handling of C={1,2} when M= is set
builddeb: Don't create files in /tmp with predictable names
kbuild: do not check for ancient modutils tools
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When the autofs protocol version 5 packet type was added in commit
5c0a32fc2cd0 ("autofs4: add new packet type for v5 communications"), it
obvously tried quite hard to be word-size agnostic, and uses explicitly
sized fields that are all correctly aligned.
However, with the final "char name[NAME_MAX+1]" array at the end, the
actual size of the structure ends up being not very well defined:
because the struct isn't marked 'packed', doing a "sizeof()" on it will
align the size of the struct up to the biggest alignment of the members
it has.
And despite all the members being the same, the alignment of them is
different: a "__u64" has 4-byte alignment on x86-32, but native 8-byte
alignment on x86-64. And while 'NAME_MAX+1' ends up being a nice round
number (256), the name[] array starts out a 4-byte aligned.
End result: the "packed" size of the structure is 300 bytes: 4-byte, but
not 8-byte aligned.
As a result, despite all the fields being in the same place on all
architectures, sizeof() will round up that size to 304 bytes on
architectures that have 8-byte alignment for u64.
Note that this is *not* a problem for 32-bit compat mode on POWER, since
there __u64 is 8-byte aligned even in 32-bit mode. But on x86, 32-bit
and 64-bit alignment is different for 64-bit entities, and as a result
the structure that has exactly the same layout has different sizes.
So on x86-64, but no other architecture, we will just subtract 4 from
the size of the structure when running in a compat task. That way we
will write the properly sized packet that user mode expects.
Not pretty. Sadly, this very subtle, and unnecessary, size difference
has been encoded in user space that wants to read packets of *exactly*
the right size, and will refuse to touch anything else.
Reported-and-tested-by: Thomas Meyer <thomas@m3y3r.de>
Signed-off-by: Ian Kent <raven@themaw.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
One InfiniBand/RDMA regression fix for 3.3:
- mlx4 SR-IOV changes added static exported functions, which doesn't
build on powerpc at least. Fix from Doug Ledford for this.
* tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
mlx4_core: Exported functions can't be static
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6
SCSI fixes on 20120224:
"This is a set of assorted bug fixes for power management, mpt2sas,
ipr, the rdac device handler and quite a big chunk for qla2xxx (plus a
use after free of scsi_host in scsi_scan.c). "
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6:
[SCSI] scsi_dh_rdac: Fix for unbalanced reference count
[SCSI] scsi_pm: Fix bug in the SCSI power management handler
[SCSI] scsi_scan: Fix 'Poison overwritten' warning caused by using freed 'shost'
[SCSI] qla2xxx: Update version number to 8.03.07.13-k.
[SCSI] qla2xxx: Proper detection of firmware abort error code for ISP82xx.
[SCSI] qla2xxx: Remove resetting memory during device initialization for ISP82xx.
[SCSI] qla2xxx: Complete mailbox command timedout to avoid initialization failures during next reset cycle.
[SCSI] qla2xxx: Remove check for null fcport from host reset handler.
[SCSI] qla2xxx: Correct out of bounds read of ISP2200 mailbox registers.
[SCSI] qla2xxx: Remove errant clearing of MBX_INTERRUPT flag during CT-IOCB processing.
[SCSI] qla2xxx: Clear options-flags while issuing stop-firmware mbx command.
[SCSI] qla2xxx: Add an "is reset active" helper.
[SCSI] qla2xxx: Add check for null fcport references in qla2xxx_queuecommand.
[SCSI] qla2xxx: Propagate up abort failures.
[SCSI] isci: Fix NULL ptr dereference when no firmware is being loaded
[SCSI] ipr: fix eeh recovery for 64-bit adapters
[SCSI] mpt2sas: Fix mismatch in mpt2sas_base_hard_reset_handler() mutex lock-unlock
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This patch reverts a portion of d0bc1fb4 so that coccicheck will
work properly when C=1 or C=2.
Reported-and-tested-by: Brice Goglin <Brice.Goglin@inria.fr>
Signed-off-by: Greg Dietsche <Gregory.Dietsche@cuw.edu>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Michal Marek <mmarek@suse.cz>
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Move all vpfe platform device registrations to the board specific
file.
This removes registration of vpfe platform devices on boards which
do not use vpfe.
Signed-off-by: Manjunath Hadli <manjunath.hadli@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
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Add dm644x_ prefix to names of v4l2 variables in dm644x.c
Add dm644xevm_ prefix to names of v4l2 variables in board-dm644x-evm.c.
This makes the code consistent with rest of these files.
Signed-off-by: Manjunath Hadli <manjunath.hadli@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
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Replace the VPSS base address "magic number" with the
define "DM644X_VPSS_BASE" to improve readability.
While at it, fix the indentation done using spaces in
this part of code.
Signed-off-by: Manjunath Hadli <manjunath.hadli@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
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There are instances of IO_ADDRESS() being used for system module
(sysmod) register access. Eliminate this in favor of a ioremap()
based access. ioremap() the entire sysmod address space once during
boot-up and provide a helper macro to access specific register
offsets within the address space.
With this, also eliminate ioremap() of specific sysmodule registers
related to VPIF happening in DM646x EVM code.
While at it, also eliminate some duplicate sysmod register offset macros
defined in code and place offset definitions at one place in davinci.h
Signed-off-by: Manjunath Hadli <manjunath.hadli@ti.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
[nsekhar@ti.com: removed the addition of ifndef __ASSEMBLER__
in davinci.h, eliminate IO_ADDRESS() usage left out in dm646x.c,
cleanup VPIF sysmodule register access as part of this patch and
keep all sysmod offsets in davinci.h Also, convert the WARN_ON()
on failure to setup sysmod base to BUG_ON()]
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
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Remove individual platform header files for dm365, dm355, dm644x
and dm646x and consolidate it into a single and common
header file davinci.h placed in arch/arm/mach-davinci.
This reduces the pollution in the include/mach and is consistent
with Russell's suggestions as part of his "pet peaves" mail.
(See #4 in: http://lists.infradead.org/pipermail/linux-arm-kernel/2011-November/071516.html)
While at it, fix the forward declaration of spi_board_info,
and include the right header file instead.
The further patches in the series take advantage of this consolidation
for easy implementation of IO_ADDRESS elimination.
Signed-off-by: Manjunath Hadli <manjunath.hadli@ti.com>
[nsekhar@ti.com: make davinci.h the first local include file,
fix forward declaration of spi_board_info and add back Deep Root
Systems, LLC copyright]
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
[media] hdpvr: update picture controls to support firmware versions > 0.15
[media] wl128x: fix build errors when GPIOLIB is not enabled
[media] hdpvr: fix race conditon during start of streaming
[media] omap3isp: Fix crash caused by subdevs now having a pointer to devnodes
[media] imon: don't wedge hardware after early callbacks
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signalfd_cleanup() ensures that ->signalfd_wqh is not used, but
this is not enough. eppoll_entry->whead still points to the memory
we are going to free, ep_unregister_pollwait()->remove_wait_queue()
is obviously unsafe.
Change ep_poll_callback(POLLFREE) to set eppoll_entry->whead = NULL,
change ep_unregister_pollwait() to check pwq->whead != NULL under
rcu_read_lock() before remove_wait_queue(). We add the new helper,
ep_remove_wait_queue(), for this.
This works because sighand_cachep is SLAB_DESTROY_BY_RCU and because
->signalfd_wqh is initialized in sighand_ctor(), not in copy_sighand.
ep_unregister_pollwait()->remove_wait_queue() can play with already
freed and potentially reused ->sighand, but this is fine. This memory
must have the valid ->signalfd_wqh until rcu_read_unlock().
Reported-by: Maxime Bizon <mbizon@freebox.fr>
Cc: <stable@kernel.org>
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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This patch is intentionally incomplete to simplify the review.
It ignores ep_unregister_pollwait() which plays with the same wqh.
See the next change.
epoll assumes that the EPOLL_CTL_ADD'ed file controls everything
f_op->poll() needs. In particular it assumes that the wait queue
can't go away until eventpoll_release(). This is not true in case
of signalfd, the task which does EPOLL_CTL_ADD uses its ->sighand
which is not connected to the file.
This patch adds the special event, POLLFREE, currently only for
epoll. It expects that init_poll_funcptr()'ed hook should do the
necessary cleanup. Perhaps it should be defined as EPOLLFREE in
eventpoll.
__cleanup_sighand() is changed to do wake_up_poll(POLLFREE) if
->signalfd_wqh is not empty, we add the new signalfd_cleanup()
helper.
ep_poll_callback(POLLFREE) simply does list_del_init(task_list).
This make this poll entry inconsistent, but we don't care. If you
share epoll fd which contains our sigfd with another process you
should blame yourself. signalfd is "really special". I simply do
not know how we can define the "right" semantics if it used with
epoll.
The main problem is, epoll calls signalfd_poll() once to establish
the connection with the wait queue, after that signalfd_poll(NULL)
returns the different/inconsistent results depending on who does
EPOLL_CTL_MOD/signalfd_read/etc. IOW: apart from sigmask, signalfd
has nothing to do with the file, it works with the current thread.
In short: this patch is the hack which tries to fix the symptoms.
It also assumes that nobody can take tasklist_lock under epoll
locks, this seems to be true.
Note:
- we do not have wake_up_all_poll() but wake_up_poll()
is fine, poll/epoll doesn't use WQ_FLAG_EXCLUSIVE.
- signalfd_cleanup() uses POLLHUP along with POLLFREE,
we need a couple of simple changes in eventpoll.c to
make sure it can't be "lost".
Reported-by: Maxime Bizon <mbizon@freebox.fr>
Cc: <stable@kernel.org>
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Drivers should no longer use omap_read/write functions
but instead use ioremap + read/write functions.
As some USB legacy code is still shared between omap1 and
omap2420, let's limit the omap_read/write to plat/usb.h.
Note that the long term fix is to update the drivers to
use ioremap and read/write functions. That can now be
done as a separate patch series that is limited to the
USB drivers.
Also make sure the legacy omap1-keypad.c driver builds
if selected for 2420 based systems.
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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This is needed to minimize io.h so the SoC specific io.h
for ARMs can removed.
Note that minimal driver changes for DSS and RNG are needed to
include cpu.h for SoC detection macros.
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Matt Mackall <mpm@selenic.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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There's no need to have these defines in plat/io.h.
Note that we now need to ifdef omap_read/write calls
as they will be available for omap1 only.
While at it, clean up the includes to group them like
they typically are grouped.
Signed-off-by: Tony Lindgren <tony@atomide.com>
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There's no need to have these in plat/io.h.
While at it, clean up the includes to group them
like they typically are grouped.
Signed-off-by: Tony Lindgren <tony@atomide.com>
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This way we can remove omap_read/write call from the GPIO driver
and remove include to linux/io.h.
Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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We don't want to keep it in io.h as we want to remove io.h
for omap2+ for the common zImage support.
Signed-off-by: Tony Lindgren <tony@atomide.com>
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These should be local to omap2/3/4.
Signed-off-by: Tony Lindgren <tony@atomide.com>
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This is only needed when using SRAM for framebuffer,
and the support for SRAM framebuffer is about to get
removed.
Otherwise we cannot move most of plat/io.h to be a local
iomap.h for mach-omap2.
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: linux-fbdev@vger.kernel.org
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Remove omap_{read,write}l() from the 24xx PM code. The clocksource
code should now handle what this was supposed to do.
Tested on N800 -- but it's hard to say whether this fixes anything.
OMAP24xx static suspend path is currently broken, and this patch
doesn't change that.
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Rob Herring <robherring2@gmail.com>
Acked-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Flag single_channel in struct omap2_mcspi_device_config is not used
by drivers/spi/spi-omap2-mcspi.c so we may remove it from include/plat/mcspi.h
and affected board files.
Signed-off-by: Jarkko Nikula <jarkko.nikula@bitmer.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs
Quoth Chris:
"This is later than I wanted because I got backed up running through
btrfs bugs from the Oracle QA teams. But they are all bug fixes that
we've queued and tested since rc1.
Nothing in particular stands out, this just reflects bug fixing and QA
done in parallel by all the btrfs developers. The most user visible
of these is:
Btrfs: clear the extent uptodate bits during parent transid failures
Because that helps deal with out of date drives (say an iscsi disk
that has gone away and come back). The old code wasn't always
properly retrying the other mirror for this type of failure."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: (24 commits)
Btrfs: fix compiler warnings on 32 bit systems
Btrfs: increase the global block reserve estimates
Btrfs: clear the extent uptodate bits during parent transid failures
Btrfs: add extra sanity checks on the path names in btrfs_mksubvol
Btrfs: make sure we update latest_bdev
Btrfs: improve error handling for btrfs_insert_dir_item callers
Btrfs: be less strict on finding next node in clear_extent_bit
Btrfs: fix a bug on overcommit stuff
Btrfs: kick out redundant stuff in convert_extent_bit
Btrfs: skip states when they does not contain bits to clear
Btrfs: check return value of lookup_extent_mapping() correctly
Btrfs: fix deadlock on page lock when doing auto-defragment
Btrfs: fix return value check of extent_io_ops
btrfs: honor umask when creating subvol root
btrfs: silence warning in raid array setup
btrfs: fix structs where bitfields and spinlock/atomic share 8B word
btrfs: delalloc for page dirtied out-of-band in fixup worker
Btrfs: fix memory leak in load_free_space_cache()
btrfs: don't check DUP chunks twice
Btrfs: fix trim 0 bytes after a device delete
...
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This is the arch/c6x part of commit 7c43185138cf ("Kbuild: Use dtc's -d
(dependency) option") which was dropped because c6x had not yet been
merged at the time.
* tag 'for-linus' of git://linux-c6x.org/git/projects/linux-c6x-upstreaming:
Kbuild: Use dtc's -d (dependency) option
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I don't even live in the same country as any of my PA-RISC hardware
these days, so the odds of me touching the code are pretty low.
(Also re-order things to ensure jejb gets CC'd since he's been the
primary maintainer for the last few years.)
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Don't clear vm_mm in a deleted VMA as it's unnecessary and might
conceivably break the filesystem or driver VMA close routine.
Reported-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Lock i_mmap_mutex for access to the VMA prio list to prevent concurrent
access. Currently, certain parts of the mmap handling are protected by
the region mutex, but not all.
Reported-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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SH/R-Mobile fixes for 3.3-rc5
* tag 'rmobile-for-linus' of git://github.com/pmundt/linux-sh:
arch/arm/mach-shmobile/board-ag5evm.c: included linux/dma-mapping.h twice
ARM: mach-shmobile: r8a7779 PFC IPSR4 fix
ARM: mach-shmobile: sh73a0 PSTR 32-bit access fix
ARM: mach-shmobile: add GPIO-to-IRQ translation to sh7372
ARM: mach-shmobile: clock-sh73a0: add DSIxPHY clock support
arm: fix compile failure in mach-shmobile/board-ag5evm.c
ARM: mach-shmobile: mackerel: add ak4642 amixer settings on comment
ARM: mach-shmobile: mackerel: use renesas_usbhs instead of r8a66597_hcd
ARM: mach-shmobile: simplify MMCIF DMA configuration
ARM: mach-shmobile: IRQ driven GPIO key support for Kota2
ARM: mach-shmobile: sh73a0 IRQ sparse alloc fix
ARM: mach-shmobile: sh73a0 PINT IRQ base fix
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SuperH fixes for 3.3-rc5
* tag 'sh-for-linus' of git://github.com/pmundt/linux-sh:
sh: Fix sh2a build error for CONFIG_CACHE_WRITETHROUGH
sh: modify a resource of sh_eth_giga1_resources in board-sh7757lcr
arch/sh: remove references to cpu_*_map.
sh: Fix typo in pci-sh7780.c
sh: add platform_device for SPI1 in setup-sh7757
sh: modify resource for SPI0 in setup-sh7757
sh: se7724: fix compile breakage
sh: clkfwk: bugfix: use clk_reparent() for div6 clocks
sh: clock-sh7724: fixup sh_fsi clock settings
sh: sh7757lcr: update to the new MMCIF DMA configuration
sh: fix the sh_mmcif_plat_data in board-sh7757lcr
video: pvr2fb: Fix up spurious section mismatch warnings.
sh: Defer to asm-generic/device.h.
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There is an issue when memcg unregisters events that were attached to
the same eventfd:
- On the first call mem_cgroup_usage_unregister_event() removes all
events attached to a given eventfd, and if there were no events left,
thresholds->primary would become NULL;
- Since there were several events registered, cgroups core will call
mem_cgroup_usage_unregister_event() again, but now kernel will oops,
as the function doesn't expect that threshold->primary may be NULL.
That's a good question whether mem_cgroup_usage_unregister_event()
should actually remove all events in one go, but nowadays it can't
do any better as cftype->unregister_event callback doesn't pass
any private event-associated cookie. So, let's fix the issue by
simply checking for threshold->primary.
FWIW, w/o the patch the following oops may be observed:
BUG: unable to handle kernel NULL pointer dereference at 0000000000000004
IP: [<ffffffff810be32c>] mem_cgroup_usage_unregister_event+0x9c/0x1f0
Pid: 574, comm: kworker/0:2 Not tainted 3.3.0-rc4+ #9 Bochs Bochs
RIP: 0010:[<ffffffff810be32c>] [<ffffffff810be32c>] mem_cgroup_usage_unregister_event+0x9c/0x1f0
RSP: 0018:ffff88001d0b9d60 EFLAGS: 00010246
Process kworker/0:2 (pid: 574, threadinfo ffff88001d0b8000, task ffff88001de91cc0)
Call Trace:
[<ffffffff8107092b>] cgroup_event_remove+0x2b/0x60
[<ffffffff8103db94>] process_one_work+0x174/0x450
[<ffffffff8103e413>] worker_thread+0x123/0x2d0
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Kirill A. Shutemov <kirill@shutemov.name>
Cc: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Temperature history is reset by writing 0x8000 into the peak temperature
register, not 0xffff.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Jean Delvare <khali@linux-fr.org>
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The enospc tracing code added some interesting uses of
u64 pointer casts.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
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arch/arm/mach-shmobile/board-ag5evm.c: included 'linux/dma-mapping.h'
twice, remove the duplicate.
Signed-off-by: Danny Kukawka <danny.kukawka@bisect.de>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Fix the bit field width information for the IPSR4 register
in the r8a7779 pin function controller (PFC).
Without this fix the Marzen board fails to receive data
over the serial console due to misconfigured pin function
for the RX pin.
Signed-off-by: Magnus Damm <damm@opensource.se>
Tested-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tested-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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