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Commit Graph

299869 Commits

Author SHA1 Message Date
Imre Kaloz
dc890df0a7 staging: octeon-ethernet: fix build errors by including interrupt.h
This patch fixes the following build failures:

drivers/staging/octeon/ethernet.c: In function 'cvm_oct_cleanup_module':
drivers/staging/octeon/ethernet.c:799:2: error: implicit declaration of function 'free_irq'
drivers/staging/octeon/ethernet-rx.c: In function 'cvm_oct_no_more_work':
drivers/staging/octeon/ethernet-rx.c:119:3: error: implicit declaration of function 'enable_irq'
drivers/staging/octeon/ethernet-rx.c: In function 'cvm_oct_do_interrupt':
drivers/staging/octeon/ethernet-rx.c:136:2: error: implicit declaration of function 'disable_irq_nosync'
drivers/staging/octeon/ethernet-rx.c: In function 'cvm_oct_rx_initialize':
drivers/staging/octeon/ethernet-rx.c:532:2: error: implicit declaration of function 'request_irq'
drivers/staging/octeon/ethernet-tx.c: In function 'cvm_oct_tx_initialize':
drivers/staging/octeon/ethernet-tx.c:712:2: error: implicit declaration of function 'request_irq'
drivers/staging/octeon/ethernet-tx.c: In function 'cvm_oct_tx_shutdown':
drivers/staging/octeon/ethernet-tx.c:723:2: error: implicit declaration of function 'free_irq'

Signed-off-by: Imre Kaloz <kaloz@openwrt.org>
Acked-by: David Daney <david.daney@cavium.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-24 11:57:37 -07:00
Seth Jennings
349ae79c0a staging: zcache: fix Kconfig crypto dependency
ZCACHE is a boolean in the Kconfig.  When selected, it
should require that CRYPTO be builtin (=y).

Currently, ZCACHE=y and CRYPTO=m is a valid configuration
when it should not be.

This patch changes the zcache Kconfig to enforce this
dependency.

Signed-off-by: Seth Jennings <sjenning@linux.vnet.ibm.com>
Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-24 11:57:36 -07:00
Omar Ramirez Luna
a2cd62ec9a staging: tidspbridge: remove usage of OMAP2_L4_IO_ADDRESS
Instead now use ioremap. This is needed for 3.4 since this change
emerged in mainline during one of the previous rc cycles.

These solves the following compilation breaks:

drivers/staging/tidspbridge/core/tiomap3430.c:
    In function ‘bridge_brd_start’:
drivers/staging/tidspbridge/core/tiomap3430.c:425:4:
    error: implicit declaration of function ‘OMAP2_L4_IO_ADDRESS’

drivers/staging/tidspbridge/core/wdt.c: In function ‘dsp_wdt_init’:
drivers/staging/tidspbridge/core/wdt.c:56:2:
    error: implicit declaration of function ‘OMAP2_L4_IO_ADDRESS’

For control registers a new function needs to be defined so we
can get rid of a layer violation, but that approach must be queued
for the next merge window.

As seen in:
http://www.arm.linux.org.uk/developer/build/
platform: omap4430-sdp		build: uImage
config: randconfig			version: 3.4.0-rc3
start time: Apr 20 2012 01:07

Reported-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Omar Ramirez Luna <omar.ramirez@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-24 11:57:36 -07:00
Sachin Prabhu
28f8881023 Use correct conversion specifiers in cifs_show_options
cifs_show_options uses the wrong conversion specifier for uid, gid,
rsize & wsize. Correct this to %u to match it to the variable type
'unsigned integer'.

Signed-off-by: Sachin Prabhu <sprabhu@redhat.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
2012-04-24 11:36:25 -05:00
Sachin Prabhu
3c7c87fd5b CIFS: Show backupuid/gid in /proc/mounts
Show  backupuid/backupgid in /proc/mounts for cifs shares mounted with
the backupuid/backupgid feature.

Also consolidate the two separate checks for
pvolume_info->backupuid_specified into a single if condition in
cifs_setup_cifs_sb().

Signed-off-by: Sachin Prabhu <sprabhu@redhat.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
2012-04-24 11:36:22 -05:00
Linus Torvalds
af3a3ab296 Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-3.0-fixes
Pull gfs2 fixes from Steven Whitehouse.

* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-3.0-fixes:
  GFS2: Instruct DLM to avoid queue convert slowdown
2012-04-24 08:22:25 -07:00
Linus Torvalds
423b40e194 HSI fixes and ABI documentation for 3.4
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Merge tag 'hsi_fixes_for_3.4' of git://gitorious.org/kernel-hsi/kernel-hsi

Pull HSI fixes and ABI documentation from Carlos Chinea

* tag 'hsi_fixes_for_3.4' of git://gitorious.org/kernel-hsi/kernel-hsi:
  HSI: Add HSI ABI documentation
  HSI: hsi_char: Remove max_data_size from sysfs
  HSI: hsi: Rework hsi_event interface
  HSI: hsi: Remove controllers and ports from the bus
  HSI: hsi: Fix error path cleanup on client registration
  HSI: hsi: Rework hsi_controller release
2012-04-24 08:20:28 -07:00
Bob Peterson
4c569a72c3 GFS2: Instruct DLM to avoid queue convert slowdown
This patch instructs DLM to prevent an "in place" conversion, where the
lock just stays on the granted queue, and instead forces the conversion to
the back of the convert queue. This is done on upward conversions only.
    
This is useful in cases where, for example, a lock is frequently needed in
PR on one node, but another node needs it temporarily in EX to update it.
This may happen, for example, when the rindex is being updated by gfs2_grow.
The gfs2_grow needs to have the lock in EX, but the other nodes need to
re-read it to retrieve the updates. The glock is already granted in PR on
the non-growing nodes, so this prevents them from continually re-granting
the lock in PR, and forces the EX from gfs2_grow to go through.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2012-04-24 13:26:50 +01:00
Linus Torvalds
95f7147274 Ext4 bug fixes for 3.4
These are two low-risk bug fixes for ext4, fixing a compile warning
 and a potential deadlock.
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Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

Pull ext4 bug fixes from Ted Ts'o:
 "These are two low-risk bug fixes for ext4, fixing a compile warning
  and a potential deadlock."

* tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  super.c: unused variable warning without CONFIG_QUOTA
  jbd2: use GFP_NOFS for blkdev_issue_flush
2012-04-23 19:52:00 -07:00
Linus Torvalds
ce1ee9f5b9 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rkuo/linux-hexagon-kernel
Pull Hexagon fixes from Richard Kuo:
 "It's mostly compile fixes and the Hexagon portion of a CPU hotplug
  patch set."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rkuo/linux-hexagon-kernel:
  hexagon: add missing cpu.h include
  hexagon/CPU hotplug: Add missing call to notify_cpu_starting()
  hexagon:  use renamed tick_nohz_idle_* functions
  Hexagon: misc compile warning/error cleanup due to missing headers
2012-04-23 19:50:48 -07:00
Linus Torvalds
4d634ca35a Merge branch 'rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild
Pull build system failure fix from Michal Marek:
 "This fixes build failure with newer gcc that adds some internal
  symbols that end in "__mod_*_device_table", but are not actually the
  tables themselves."

* 'rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
  Fix modpost failures in fedora 17
2012-04-23 19:45:19 -07:00
Eldad Zack
db7e5c668e super.c: unused variable warning without CONFIG_QUOTA
sb info is only checked with quota support.

fs/ext4/super.c: In function ‘parse_options’:
fs/ext4/super.c:1600:23: warning: unused variable ‘sbi’ [-Wunused-variable]

Signed-off-by: Eldad Zack <eldad@fogrefinery.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2012-04-23 21:44:41 -04:00
Shaohua Li
99aa784667 jbd2: use GFP_NOFS for blkdev_issue_flush
flush request is issued in transaction commit code path, so looks using
GFP_KERNEL to allocate memory for flush request bio falls into the classic
deadlock issue.  I saw btrfs and dm get it right, but ext4, xfs and md are
using GFP.

Signed-off-by: Shaohua Li <shli@fusionio.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Jan Kara <jack@suse.cz>
Cc: stable@vger.kernel.org
2012-04-23 21:43:41 -04:00
Linus Torvalds
d2da626d6c md: a few more bug fixes for 3.4
2 are tagged for -stable, one being for a fairly serious bug
 that can corrupt metadata and make it hard to recovery an array.
 The other is for a more recent regression since 3.3
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Merge tag 'md-3.4-fixes' of git://neil.brown.name/md

Pull a few more md bug fixes from NeilBrown:
 "2 are tagged for -stable, one being for a fairly serious bug that can
  corrupt metadata and make it hard to recovery an array.  The other is
  for a more recent regression since 3.3"

* tag 'md-3.4-fixes' of git://neil.brown.name/md:
  md: fix possible corruption of array metadata on shutdown.
  md: don't call ->add_disk unless there is good reason.
  DM RAID: Use safe version of rdev_for_each
2012-04-23 18:25:01 -07:00
Linus Torvalds
721b024bd4 dlm fixes for 3.4
This includes one short patch fixing the behavior of
 the QUECVT flag, which the gfs2 folks are waiting on.
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Merge tag 'dlm-fixes-3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm

Pull dlm fixes from David Teigland:
 "This includes one short patch fixing the behavior of the QUECVT flag,
  which the gfs2 folks are waiting on."

* tag 'dlm-fixes-3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm:
  dlm: fix QUECVT when convert queue is empty
2012-04-23 18:22:42 -07:00
Hugh Dickins
aca50bd3b4 mm: fix s390 BUG by __set_page_dirty_no_writeback on swap
Mel reports a BUG_ON(slot == NULL) in radix_tree_tag_set() on s390
3.0.13: called from __set_page_dirty_nobuffers() when page_remove_rmap()
tries to transfer dirty flag from s390 storage key to struct page and
radix_tree.

That would be because of reclaim's shrink_page_list() calling
add_to_swap() on this page at the same time: first PageSwapCache is set
(causing page_mapping(page) to appear as &swapper_space), then
page->private set, then tree_lock taken, then page inserted into
radix_tree - so there's an interval before taking the lock when the
radix_tree slot is empty.

We could fix this by moving __add_to_swap_cache()'s spin_lock_irq up
before the SetPageSwapCache.  But a better fix is simply to do what's
five years overdue: Ken Chen introduced __set_page_dirty_no_writeback()
(if !PageDirty TestSetPageDirty) for tmpfs to skip all the radix_tree
overhead, and swap is just the same - it ignores the radix_tree tag, and
does not participate in dirty page accounting, so should be using
__set_page_dirty_no_writeback() too.

s390 testing now confirms that this does indeed fix the problem.

Reported-by: Mel Gorman <mgorman@suse.de>
Signed-off-by: Hugh Dickins <hughd@google.com>
Acked-by: Mel Gorman <mgorman@suse.de>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Ken Chen <kenchen@google.com>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-04-23 18:19:22 -07:00
H. Peter Anvin
89b8835ec8 x32, siginfo: Provide proper overrides for x32 siginfo_t
Provide the proper override macros for x32 siginfo_t.  The combination
of a special type here and an overall alignment constraint actually
ends up with all the types being properly aligned, but the hack is
needed to keep the substructures inside siginfo_t from adding padding.

Note: use __attribute__((aligned())) since __aligned() is not exported
to user space.

[ v2: fix stray semicolon ]

Reported-by: H.J. Lu <hjl.rools@gmail.com>
Cc: Bruce J. Beare <bruce.j.beare@intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Link: http://lkml.kernel.org/r/CAMe9rOqF6Kh6-NK7oP0Fpzkd4SBAWU%2BG53hwBbSD4iA2UzyxuA@mail.gmail.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2012-04-23 18:11:40 -07:00
NeilBrown
30b8aa9172 md: fix possible corruption of array metadata on shutdown.
commit c744a65c1e
  md: don't set md arrays to readonly on shutdown.

removed the possibility of a 'BUG' when data is written to an array
that has just been switched to read-only, but also introduced the
possibility that the array metadata could be corrupted.

If, when md_notify_reboot gets the mddev lock, the array is
in a state where it is assembled but hasn't been started (as can
happen if the personality module is not available, or in other unusual
situations), then incorrect metadata will be written out making it
impossible to re-assemble the array.

So only call __md_stop_writes() if the array has actually been
activated.

This patch is needed for any stable kernel which has had the above
commit applied.

Cc: stable@vger.kernel.org
Reported-by: Christoph Nelles <evilazrael@evilazrael.de>
Signed-off-by: NeilBrown <neilb@suse.de>
2012-04-24 10:23:16 +10:00
NeilBrown
ed209584c3 md: don't call ->add_disk unless there is good reason.
Commit 7bfec5f35c

   md/raid5: If there is a spare and a want_replacement device, start replacement.

cause md_check_recovery to call ->add_disk much more often.
Instead of only when the array is degraded, it is now called whenever
md_check_recovery finds anything useful to do, which includes
updating the metadata for clean<->dirty transition.
This causes unnecessary work, and causes info messages from ->add_disk
to be reported much too often.

So refine md_check_recovery to only do any actual recovery checking
(including ->add_disk) if MD_RECOVERY_NEEDED is set.

This fix is suitable for 3.3.y:

Cc: stable@vger.kernel.org
Reported-by: Jan Ceuleers <jan.ceuleers@computer.org>
Signed-off-by: NeilBrown <neilb@suse.de>
2012-04-24 10:23:14 +10:00
Jonathan Brassow
a9ad8526bb DM RAID: Use safe version of rdev_for_each
Fix segfault caused by using rdev_for_each instead of rdev_for_each_safe

Commit dafb20fa34 mistakenly replaced a safe
iterator with an unsafe one when making some macro changes.

Signed-off-by: Jonathan Brassow <jbrassow@redhat.com>
Signed-off-by: NeilBrown <neilb@suse.de>
2012-04-24 10:23:13 +10:00
H. Peter Anvin
d643bdca8a asm-generic: Allow overriding clock_t and add attributes to siginfo_t
For the particular issue of x32, which shares code with i386 in the
handling of compat_siginfo_t, the use of a 64-bit clock_t bumps the
sigchld structure out of alignment, which triggers a messy cascade of
padding.

This was already handled on the kernel compat side, but it needs
handling on the user space side, which uses the generic header.  To
make that possible:

1. Allow __kernel_clock_t to be overridden in struct siginfo;
2. Allow there to be attributes added to struct siginfo.

Reported-by: H.J. Lu <hjl.rools@gmail.com>
Cc: Bruce J. Beare <bruce.j.beare@intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Link: http://lkml.kernel.org/r/CAMe9rOqF6Kh6-NK7oP0Fpzkd4SBAWU%2BG53hwBbSD4iA2UzyxuA@mail.gmail.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2012-04-23 16:29:18 -07:00
David Brown
2b7b9a7d6c ARM: msm: Fix gic irqdomain support
As of

    commit 75294957be
    Author: Grant Likely <grant.likely@secretlab.ca>
    Date:   Tue Feb 14 14:06:57 2012 -0700

        irq_domain: Remove 'new' irq_domain in favour of the ppc one

the ARM gic controller uses proper irq domains.  Fix the MSM gic
initialization and DT so that it works again.

Signed-off-by: David Brown <davidb@codeaurora.org>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
2012-04-23 16:13:27 -07:00
H.J. Lu
98e5272fe7 x32: Check __ILP32__ instead of __LP64__ for x32
Check __LP64__ isn't a reliable way to tell if we are compiling for x32
since __LP64__ isnn't specified by x86-64 psABI.  Not all x86-64
compilers define __LP64__, which was added to GCC 3.3. The updated x32
psABI:

https://sites.google.com/site/x32abi/documents

definse _ILP32 and __ILP32__ for x32.  GCC trunk and 4.7 branch have
been updated to define _ILP32 and __ILP32__ for x32.  This patch
replaces __LP64__ check with __ILP32__.

Signed-off-by: H.J. Lu <hjl.tools@gmail.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2012-04-23 14:51:14 -07:00
Xi Wang
44afb3a043 drm/i915: fix integer overflow in i915_gem_do_execbuffer()
On 32-bit systems, a large args->num_cliprects from userspace via ioctl
may overflow the allocation size, leading to out-of-bounds access.

This vulnerability was introduced in commit 432e58ed ("drm/i915: Avoid
allocation for execbuffer object list").

Signed-off-by: Xi Wang <xi.wang@gmail.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-04-23 22:32:15 +02:00
Xi Wang
ed8cd3b2cd drm/i915: fix integer overflow in i915_gem_execbuffer2()
On 32-bit systems, a large args->buffer_count from userspace via ioctl
may overflow the allocation size, leading to out-of-bounds access.

This vulnerability was introduced in commit 8408c282 ("drm/i915:
First try a normal large kmalloc for the temporary exec buffers").

Signed-off-by: Xi Wang <xi.wang@gmail.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-04-23 22:32:02 +02:00
Konrad Rzeszutek Wilk
cd74257b97 x86, acpi: Call acpi_enter_sleep_state via an asmlinkage C function from assembler
With commit a2ef5c4fd4
"ACPI: Move module parameter gts and bfs to sleep.c" the
wake_sleep_flags is required when calling acpi_enter_sleep_state.

The assembler code in wakeup_*.S did not do that. One solution
is to call it from assembler and stick the wake_sleep_flags on
the stack (for 32-bit) or in %esi (for 64-bit). hpa and rafael
both suggested however to create a wrapper function to call
acpi_enter_sleep_state and call said wrapper function
("acpi_enter_s3") from assembler.

For 32-bit, the acpi_enter_s3 ends up looking as so:

  push   %ebp
  mov    %esp,%ebp
  sub    $0x8,%esp
  movzbl 0xc1809314,%eax [wake_sleep_flags]
  movl   $0x3,(%esp)
  mov    %eax,0x4(%esp)
  call   0xc12d1fa0 <acpi_enter_sleep_state>
  leave
  ret

And 64-bit:

  movzbl 0x9afde1(%rip),%esi        [wake_sleep_flags]
  push   %rbp
  mov    $0x3,%edi
  mov    %rsp,%rbp
  callq  0xffffffff812e9800 <acpi_enter_sleep_state>
  leaveq
  retq

Reviewed-by: H. Peter Anvin <hpa@zytor.com>
Suggested-by: H. Peter Anvin <hpa@zytor.com>
[v2: Remove extra assembler operations, per hpa review]
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Link: http://lkml.kernel.org/r/1335150198-21899-3-git-send-email-konrad.wilk@oracle.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2012-04-23 13:29:18 -07:00
Konrad Rzeszutek Wilk
2a14e541ed ACPI: Convert wake_sleep_flags to a value instead of function
With commit a2ef5c4fd4
"ACPI: Move module parameter gts and bfs to sleep.c" the wake_sleep_flags
is required when calling acpi_enter_sleep_state, which means
that if there are functions outside the sleep.c code they
can't get the wake_sleep_flags values.

This converts the function in to a exported value and converts
the module config operands to a function.

Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Lin Ming <ming.m.lin@intel.com>
[v2: Parameters can be turned on/off dynamically]
[v3: unsigned char -> u8]
[v4: val -> kp->arg]
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Link: http://lkml.kernel.org/r/1335150198-21899-2-git-send-email-konrad.wilk@oracle.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2012-04-23 13:29:07 -07:00
Richard Kuo
e00574b7f3 hexagon: add missing cpu.h include
Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
2012-04-23 12:57:24 -05:00
Srivatsa S. Bhat
57f27cca7a hexagon/CPU hotplug: Add missing call to notify_cpu_starting()
The scheduler depends on receiving the CPU_STARTING notification, without
which we end up into a lot of trouble. So add the missing call to
notify_cpu_starting() in the bringup code.

Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
2012-04-23 12:57:11 -05:00
Richard Kuo
e8e42a5cff hexagon: use renamed tick_nohz_idle_* functions
Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
2012-04-23 12:56:57 -05:00
Richard Kuo
6bbbc30ce6 Hexagon: misc compile warning/error cleanup due to missing headers
Fixed warnings/errors for EXPORT_SYMBOL, linux_binprm, elf related
defines

Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
2012-04-23 12:56:41 -05:00
Takashi Iwai
cff7873554 ASoC: updates for 3.4
Slightly larger than normal - the DAPM fix is a "this should always have
 worked" type of thing which is very clear and should have no impact on
 systems that don't need it.  The WM8994 fix is driver specific but
 pretty important for that driver.
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Merge tag 'asoc-3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: updates for 3.4

Slightly larger than normal - the DAPM fix is a "this should always have
worked" type of thing which is very clear and should have no impact on
systems that don't need it.  The WM8994 fix is driver specific but
pretty important for that driver.
2012-04-23 18:39:47 +02:00
David Teigland
53ad1c980d dlm: fix QUECVT when convert queue is empty
The QUECVT flag should not prevent conversions from
being granted immediately when the convert queue is
empty.

Signed-off-by: David Teigland <teigland@redhat.com>
2012-04-23 11:30:59 -05:00
Paul Gortmaker
9f3045eca8 irq: hide debug macros so they don't collide with others.
The file kernel/irq/debug.h temporarily defines P, PS, PD
and then undefines them.  However these names aren't really
"internal" enough, and collide with other more legit users
such as the ones in the xtensa arch, causing:

In file included from kernel/irq/internals.h:58:0,
                 from kernel/irq/irqdesc.c:18:
kernel/irq/debug.h:8:0: warning: "PS" redefined [enabled by default]
arch/xtensa/include/asm/regs.h:59:0: note: this is the location of the previous definition

Add a handful of underscores to do a better job of hiding these
temporary macros.

Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2012-04-23 12:30:03 -04:00
Paul Gortmaker
bfae8ee8d2 xtensa: fix build error in xtensa/include/asm/io.h
Caused by commit 6c03438ede

    kernel.h: doesn't explicitly use bug.h, so don't include it.

This header uses bug.h so explicitly include it now that the
implicit presence was removed by 6c03438ed.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2012-04-23 12:30:03 -04:00
Paul Gortmaker
9112a6b2fa xtensa: fix build failure in xtensa/kernel/signal.c
Caused by commit 3785006ac3

    "xtensa: don't mask signals if we fail to setup signal stack"

It assigns a return value to "ret", but there is no such variable
anywhere in scope.  Create one.

Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Chris Zankel <chris@zankel.net>
Acked-by: Matt Fleming <matt.fleming@intel.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2012-04-23 12:24:55 -04:00
Linus Walleij
7e426da823 dma/ste_dma40: fix erroneous comparison
A small fallout from Vinod's conversions to dma_transfer_direction,
this small comparison was done with a dma_data_direction instead.
Fix it by comparing against the correct enum.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
2012-04-23 18:07:05 +05:30
Linus Walleij
15e4b78d73 dma/ste_dma40: explicitly include regulator consumer header
The patch "ARM: amba: Remove AMBA level regulator support" breaks
the DMA40 driver since the <linux/amba/bus.h> header implicitly
included the regulator consumer header. So include it explicitly
and fix the build error.

Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
2012-04-23 18:07:05 +05:30
Narayanan G
1bdae6f49c dma40: Improve the logic of stopping logical chan
can be directly stopped by issuing a SUSPEND_REQ on the EE
bits. There is no need to suspend the physical channel and
restart it.

Also, the support for pre-V2 hw is discontinued.

EE bits for writing:

00: disable only if AS=11 or AS=00
01: enable
10: suspend_req only if AS=01 & EE=01 or EE=11
11: round / no change for writing

Signed-off-by: Narayanan G <narayanan.gopalakrishnan@stericsson.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
2012-04-23 17:56:17 +05:30
Mark Brown
1a38336b86 ASoC: wm8994: Improve sequencing of AIF channel enables
This ensures a clean startup of the channels, without this change some
use cases could result in issues in a small proportion of cases.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@vger.kernel.org
2012-04-23 12:55:52 +01:00
Inki Dae
818c4ea7c5 drm/exynos: added missed vm area region mapping type.
with this patch, if the memory region is physically non-continuous
then VM_MIXEDMAP is set to vm->vm_flags otherwise VM_PFNMAP.
we had missed this flag setting.

Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2012-04-23 20:31:54 +09:00
Inki Dae
f6ead8dea5 drm/exynos: fixed exynos_drm_gem_map_pages bug.
this patch fixes the problem that the physical memory region to be mapped
to user space could be exceeded. if page fault address was placed at between
buffer start and end then memory region to be mapped would be exceeded.

Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2012-04-23 20:31:45 +09:00
Inki Dae
887ea3db26 drm/exynos: fixed duplicatd memory allocation bug.
the gem was already allocated at gem allocation time but is allocated
at page fault handler so this patch fixes the problem that gem was
allocated one more time.

Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2012-04-23 20:31:20 +09:00
Carlos Chinea
24b7099af7 HSI: Add HSI ABI documentation
Adds sysfs HSI framework documentation

Signed-off-by: Carlos Chinea <carlos.chinea@nokia.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
2012-04-23 14:23:32 +03:00
Carlos Chinea
fdadb6e9a5 HSI: hsi_char: Remove max_data_size from sysfs
Remove max_data_size sysfs entry. Otherwise is possible
to have a buffer overrun if its value is increased after
the device is open.

Signed-off-by: Carlos Chinea <carlos.chinea@nokia.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
2012-04-23 14:23:32 +03:00
Carlos Chinea
ec1c56ff81 HSI: hsi: Rework hsi_event interface
Remove custom hack and make use of the notifier chain interfaces for
delivering events from the ports to their associated clients.
Clients that want to receive port events need to register their callbacks
using hsi_register_port_event(). The callbacks can be called in interrupt
context. Use hsi_unregestier_port_event() to undo the registration.

Signed-off-by: Carlos Chinea <carlos.chinea@nokia.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
2012-04-23 14:23:32 +03:00
Carlos Chinea
6f02b9e9b4 HSI: hsi: Remove controllers and ports from the bus
HSI controllers and ports do not belong to the HSI bus.
Those devices are not supposed to have a driver attached to them.

Signed-off-by: Carlos Chinea <carlos.chinea@nokia.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
2012-04-23 14:23:32 +03:00
Carlos Chinea
90e41f9dc7 HSI: hsi: Fix error path cleanup on client registration
HSI client structure should be freed on error path after
calling device_registration by dropping a reference to it.

Signed-off-by: Carlos Chinea <carlos.chinea@nokia.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
2012-04-23 14:23:31 +03:00
Carlos Chinea
5a218ceba7 HSI: hsi: Rework hsi_controller release
Use the proper release mechanism for hsi_controller and
hsi_ports structures. Free the structures through their
associated device release callbacks.

Signed-off-by: Carlos Chinea <carlos.chinea@nokia.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
2012-04-23 14:23:31 +03:00
Linus Torvalds
e895bd7992 Merge branch 'fixes' of git://git.linaro.org/people/rmk/linux-arm
Pull ARM fixes from Russell King:
 "Here's my usual Sunday push, just for one revert which PeterZ hollered
  about after last weeks push.  Other than that, all seems strangely
  quiet as far as fixes go in non-platform ARM land at the moment."

* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
  Revert "ARM: 7359/2: smp_twd: Only wait for reprogramming on active cpus"
2012-04-22 21:19:15 -07:00