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12 years agoxtensa: use "test -e" instead of bashism "test -a"
Geert Uytterhoeven [Wed, 20 Jun 2012 19:52:59 +0000 (12:52 -0700)]
xtensa: use "test -e" instead of bashism "test -a"

On Ubuntu, /bin/sh is a symlink to dash, which does not support "test -a".
This causes messages like

    test: 1: -a: unexpected operator
    test: 1: -a: unexpected operator

and link failures like

    (.init.text+0x132): undefined reference to `platform_init'

due to the appropriate platform code not being compiled.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Chris Zankel <chris@zankel.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agoxtensa: replace xtensa-specific _f{data,text} by _s{data,text}
Geert Uytterhoeven [Wed, 20 Jun 2012 19:52:58 +0000 (12:52 -0700)]
xtensa: replace xtensa-specific _f{data,text} by _s{data,text}

commit a2d063ac216c161 ("extable, core_kernel_data(): Make sure all archs
define _sdata") missed xtensa.  Xtensa does have a start of data marker,
but calls it _fdata, causing

    kernel/built-in.o:(.text+0x964): undefined reference to `_sdata'

_stext was already defined, but it was duplicated by _fdata.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Chris Zankel <chris@zankel.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agomemcg: fix use_hierarchy css_is_ancestor oops regression
Hugh Dickins [Wed, 20 Jun 2012 19:52:58 +0000 (12:52 -0700)]
memcg: fix use_hierarchy css_is_ancestor oops regression

If use_hierarchy is set, reclaim testing soon oopses in css_is_ancestor()
called from __mem_cgroup_same_or_subtree() called from page_referenced():
when processes are exiting, it's easy for mm_match_cgroup() to pass along
a NULL memcg coming from a NULL mm->owner.

Check for that in __mem_cgroup_same_or_subtree().  Return true or false?
False because we cannot know if it was in the hierarchy, but also false
because it's better not to count a reference from an exiting process.

Signed-off-by: Hugh Dickins <hughd@google.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Konstantin Khlebnikov <khlebnikov@openvz.org>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Acked-by: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agomm, oom: fix and cleanup oom score calculations
David Rientjes [Wed, 20 Jun 2012 19:52:58 +0000 (12:52 -0700)]
mm, oom: fix and cleanup oom score calculations

The divide in p->signal->oom_score_adj * totalpages / 1000 within
oom_badness() was causing an overflow of the signed long data type.

This adds both the root bias and p->signal->oom_score_adj before doing the
normalization which fixes the issue and also cleans up the calculation.

Tested-by: Dave Jones <davej@redhat.com>
Signed-off-by: David Rientjes <rientjes@google.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agonilfs2: ensure proper cache clearing for gc-inodes
Ryusuke Konishi [Wed, 20 Jun 2012 19:52:57 +0000 (12:52 -0700)]
nilfs2: ensure proper cache clearing for gc-inodes

A gc-inode is a pseudo inode used to buffer the blocks to be moved by
garbage collection.

Block caches of gc-inodes must be cleared every time a garbage collection
function (nilfs_clean_segments) completes.  Otherwise, stale blocks
buffered in the caches may be wrongly reused in successive calls of the GC
function.

For user files, this is not a problem because their gc-inodes are
distinguished by a checkpoint number as well as an inode number.  They
never buffer different blocks if either an inode number, a checkpoint
number, or a block offset differs.

However, gc-inodes of sufile, cpfile and DAT file can store different data
for the same block offset.  Thus, the nilfs_clean_segments function can
move incorrect block for these meta-data files if an old block is cached.
I found this is really causing meta-data corruption in nilfs.

This fixes the issue by ensuring cache clear of gc-inodes and resolves
reported GC problems including checkpoint file corruption, b-tree
corruption, and the following warning during GC.

  nilfs_palloc_freev: entry number 307234 already freed.
  ...

Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Tested-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Cc: <stable@vger.kernel.org> [2.6.37+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agothp: avoid atomic64_read in pmd_read_atomic for 32bit PAE
Andrea Arcangeli [Wed, 20 Jun 2012 19:52:57 +0000 (12:52 -0700)]
thp: avoid atomic64_read in pmd_read_atomic for 32bit PAE

In the x86 32bit PAE CONFIG_TRANSPARENT_HUGEPAGE=y case while holding the
mmap_sem for reading, cmpxchg8b cannot be used to read pmd contents under
Xen.

So instead of dealing only with "consistent" pmdvals in
pmd_none_or_trans_huge_or_clear_bad() (which would be conceptually
simpler) we let pmd_none_or_trans_huge_or_clear_bad() deal with pmdvals
where the low 32bit and high 32bit could be inconsistent (to avoid having
to use cmpxchg8b).

The only guarantee we get from pmd_read_atomic is that if the low part of
the pmd was found null, the high part will be null too (so the pmd will be
considered unstable).  And if the low part of the pmd is found "stable"
later, then it means the whole pmd was read atomically (because after a
pmd is stable, neither MADV_DONTNEED nor page faults can alter it anymore,
and we read the high part after the low part).

In the 32bit PAE x86 case, it is enough to read the low part of the pmdval
atomically to declare the pmd as "stable" and that's true for THP and no
THP, furthermore in the THP case we also have a barrier() that will
prevent any inconsistent pmdvals to be cached by a later re-read of the
*pmd.

Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
Cc: Jonathan Nieder <jrnieder@gmail.com>
Cc: Ulrich Obergfell <uobergfe@redhat.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Hugh Dickins <hughd@google.com>
Cc: Larry Woodman <lwoodman@redhat.com>
Cc: Petr Matousek <pmatouse@redhat.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Jan Beulich <jbeulich@suse.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@gmail.com>
Tested-by: Andrew Jones <drjones@redhat.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agomm: fix slab->page _count corruption when using slub
Pravin B Shelar [Wed, 20 Jun 2012 19:52:56 +0000 (12:52 -0700)]
mm: fix slab->page _count corruption when using slub

On arches that do not support this_cpu_cmpxchg_double() slab_lock is used
to do atomic cmpxchg() on double word which contains page->_count.  The
page count can be changed from get_page() or put_page() without taking
slab_lock.  That corrupts page counter.

Fix it by moving page->_count out of cmpxchg_double data.  So that slub
does no change it while updating slub meta-data in struct page.

[akpm@linux-foundation.org: use standard comment layout, tweak comment text]
Reported-by: Amey Bhide <abhide@nicira.com>
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Acked-by: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agodrm/i915: bind driver to ValleyView chipsets
Jesse Barnes [Wed, 20 Jun 2012 17:53:13 +0000 (10:53 -0700)]
drm/i915: bind driver to ValleyView chipsets

With the code in place, we can bind the driver, should make bisect possible.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: enable display messages to GT on ValleyView
Jesse Barnes [Wed, 20 Jun 2012 17:53:12 +0000 (10:53 -0700)]
drm/i915: enable display messages to GT on ValleyView

Enable the on-chip messaging between the display engine and the GT.

v2: use bit definitions for DPFLIPSTAT reg

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: support page flipping on ValleyView
Jesse Barnes [Wed, 20 Jun 2012 17:53:11 +0000 (10:53 -0700)]
drm/i915: support page flipping on ValleyView

And restructure the IRQ handling a little.  We can use pipestat for most
things, and make sure we don't affect pipe events when enabling and
disabling vblank interupts.

We can leave vblank interrupts masked but enabled so we're not dependent
on the first client to toggle the disable timer.  We can also mask all
render based interrupts, since the ring code will handle unmasking them
for us.

v2: roll in vblank masking, remove unneeded variable (Daniel)

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: don't enable PPGTT on VLV yet
Jesse Barnes [Fri, 15 Jun 2012 18:55:23 +0000 (11:55 -0700)]
drm/i915: don't enable PPGTT on VLV yet

Needs some more work and testing.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agoagp/intel: use correct GTT offset on VLV
Jesse Barnes [Fri, 15 Jun 2012 18:55:22 +0000 (11:55 -0700)]
agp/intel: use correct GTT offset on VLV

VLV is a gen7 device, but we don't currently handle that in the switch.
So add it and write the PTEs correctly.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agoagp/intel: allow cacheable and GDFT PTEs on ValleyView
Jesse Barnes [Fri, 15 Jun 2012 18:55:19 +0000 (11:55 -0700)]
agp/intel: allow cacheable and GDFT PTEs on ValleyView

The PTE format is similar to SNB, but we don't support an MLC and don't
need chipset flushing.

Note: I have my questions whether this is right, given that MLC died
for snb & ivb, that ivb has grown a L3$ cache instead (which vlv seems
to have, too) and that the LLC bit here isn't actually LLC, but just
means 'snoop cpu caches'.

But I plan to burn this all with the heat of a thousands suns in my
gtt rework, so who cares ;-)

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
[danvet: Added note.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: VLV VGA port only handles on & off, like PCH VGA
Jesse Barnes [Fri, 15 Jun 2012 18:55:18 +0000 (11:55 -0700)]
drm/i915: VLV VGA port only handles on & off, like PCH VGA

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: access VLV regs through read/write switch
Jesse Barnes [Fri, 15 Jun 2012 18:55:17 +0000 (11:55 -0700)]
drm/i915: access VLV regs through read/write switch

Since the offsets have all moved around.

v2: switch IS_DISPLAYREG and IS_VALLEYVIEW checks around since the latter is
    cheaper (Daniel)
    bail out early in IS_DISPLAYREG if the reg is in the new range (Daniel)

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
[danvet: Fixup if cascading fail that broke HAS_FORCEWAKE machines.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agoxfs: fix debug_object WARN at xfs_alloc_vextent()
Jeff Liu [Thu, 7 Jun 2012 07:44:32 +0000 (15:44 +0800)]
xfs: fix debug_object WARN at xfs_alloc_vextent()

Fengguang reports:

[  780.529603] XFS (vdd): Ending clean mount
[  781.454590] ODEBUG: object is on stack, but not annotated
[  781.455433] ------------[ cut here ]------------
[  781.455433] WARNING: at /c/kernel-tests/sound/lib/debugobjects.c:301 __debug_object_init+0x173/0x1f1()
[  781.455433] Hardware name: Bochs
[  781.455433] Modules linked in:
[  781.455433] Pid: 26910, comm: kworker/0:2 Not tainted 3.4.0+ #51
[  781.455433] Call Trace:
[  781.455433]  [<ffffffff8106bc84>] warn_slowpath_common+0x83/0x9b
[  781.455433]  [<ffffffff8106bcb6>] warn_slowpath_null+0x1a/0x1c
[  781.455433]  [<ffffffff814919a5>] __debug_object_init+0x173/0x1f1
[  781.455433]  [<ffffffff81491c65>] debug_object_init+0x14/0x16
[  781.455433]  [<ffffffff8108842a>] __init_work+0x20/0x22
[  781.455433]  [<ffffffff8134ea56>] xfs_alloc_vextent+0x6c/0xd5

Use INIT_WORK_ONSTACK in xfs_alloc_vextent instead of INIT_WORK.

Reported-by: Wu Fengguang <wfg@linux.intel.com>
Signed-off-by: Jie Liu <jeff.liu@oracle.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
12 years agoxfs: xfs_vm_writepage clear iomap_valid when !buffer_uptodate (REV2)
Alain Renaud [Fri, 8 Jun 2012 19:34:46 +0000 (15:34 -0400)]
xfs: xfs_vm_writepage clear iomap_valid when !buffer_uptodate (REV2)

On filesytems with a block size smaller than PAGE_SIZE we currently have
a problem with unwritten extents.  If a we have multi-block page for
which an unwritten extent has been allocated, and only some of the
buffers have been written to, and they are not contiguous, we can expose
stale data from disk in the blocks between the writes after extent
conversion.

Example of a page with unwritten and real data.
buffer  content
0       empty  b_state = 0
1       DATA   b_state = 0x1023 Uptodate,Dirty,Mapped,Unwritten
2       DATA   b_state = 0x1023 Uptodate,Dirty,Mapped,Unwritten
3       empty  b_state = 0
4       empty  b_state = 0
5       DATA   b_state = 0x1023 Uptodate,Dirty,Mapped,Unwritten
6       DATA   b_state = 0x1023 Uptodate,Dirty,Mapped,Unwritten
7       empty  b_state = 0

Buffers 1, 2, 5, and 6 have been written to, leaving 0, 3, 4, and 7
empty.  Currently buffers 1, 2, 5, and 6 are added to a single ioend,
and when IO has completed, extent conversion creates a real extent from
block 1 through block 6, leaving 0 and 7 unwritten.  However buffers 3
and 4 were not written to disk, so stale data is exposed from those
blocks on a subsequent read.

Fix this by setting iomap_valid = 0 when we find a buffer that is not
Uptodate.  This ensures that buffers 5 and 6 are not added to the same
ioend as buffers 1 and 2.  Later these blocks will be converted into two
separate real extents, leaving the blocks in between unwritten.

Signed-off-by: Alain Renaud <arenaud@sgi.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
12 years agodrm/radeon: SI tiling fixes for display
Alex Deucher [Thu, 14 Jun 2012 19:58:25 +0000 (15:58 -0400)]
drm/radeon: SI tiling fixes for display

- Use the correct union for getting the tiling info
- Properly init the PIPE_CONFIG field for SI

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
12 years agoNFS: Force the legacy idmapper to be single threaded
Bryan Schumaker [Wed, 20 Jun 2012 18:35:28 +0000 (14:35 -0400)]
NFS: Force the legacy idmapper to be single threaded

It was initially coded under the assumption that there would only be one
request at a time, so use a lock to enforce this requirement..

Signed-off-by: Bryan Schumaker <bjschuma@netapp.com>
CC: stable@vger.kernel.org [3.4+]
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
12 years agoMerge branch 'fixes' of git://git.linaro.org/people/rmk/linux-arm
Linus Torvalds [Wed, 20 Jun 2012 16:42:09 +0000 (09:42 -0700)]
Merge branch 'fixes' of git://git.linaro.org/people/rmk/linux-arm

Pull ARM fixes from Russell King:
 "This includes three MMCI changes - one to fix up the wrong version of
  the DT support patch which was merged, and two to make deferred
  probing work.  It also includes a fix to the OMAP SPI driver which is
  causing a boot time warning.

  The remainder are very minor ARM fixes."

* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
  SPI: fix over-eager devm_xxx() conversion
  ARM: 7427/1: mmc: mmci: Defer probe() in case of yet uninitialized GPIOs
  ARM: 7426/1: mmc: mmci: Remove wrong error handling of gpio 0
  ARM: 7425/1: extable: ensure fixup entries are 4-byte aligned
  ARM: 7421/1: bpf_jit: BPF_S_ANC_ALU_XOR_X support
  ARM: 7423/1: kprobes: run t32_simulate_ldr_literal() without insn slot
  ARM: 7422/1: mmc: mmci: Allocate platform memory during Device Tree boot

12 years agoMerge tag 'pinctrl-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw...
Linus Torvalds [Wed, 20 Jun 2012 16:41:21 +0000 (09:41 -0700)]
Merge tag 'pinctrl-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull two pinctrl fixes from Linus Walleij:
 - Fixed a 2-line compile error for MXS
 - A pure documentation fix for Nomadik

* tag 'pinctrl-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
  pinctrl/nomadik: document Alt-C glitch
  pinctrl: mxs: Use kfree to fix build error

12 years agoARM: OMAP: Fix Beagleboard DVI reset gpio
Russ Dill [Wed, 9 May 2012 22:15:03 +0000 (15:15 -0700)]
ARM: OMAP: Fix Beagleboard DVI reset gpio

Commit e813a55eb9c9bc6c8039fb16332cf43402125b30 ("OMAP: board-files:
remove custom PD GPIO handling for DVI output") moved TFP410 chip's
powerdown-gpio handling from the board files to the tfp410 driver. One
gpio_request_one(powerdown-gpio, ...) was mistakenly left unremoved in
the Beagle board file. This causes the tfp410 driver to fail to request
the gpio on Beagle, causing the driver to fail and thus the DVI output
doesn't work.

This patch removes several boot errors from board-omap3beagle.c:

 - gpio_request: gpio--22 (DVI reset) status -22
 - Unable to get DVI reset GPIO

There is a combination of leftover code and revision confusion.
Additionally, xM support is currently a hack.

For original Beagleboard this removes the double initialization of GPIO
170, properly configures it as an output, and wraps the initialization
in an if block so that xM does not attempt to request it.

For Beagleboard xM it removes reference to GPIO 129 which was part
of rev A1 and A2 designs, but never functioned. It then properly assigns
beagle_dvi_device.reset_gpio in beagle_twl_gpio_setup and removes the
hack of initializing it high. Additionally, it uses
gpio_set_value_cansleep since this GPIO is connected through i2c.

Unfortunately, there is no way to tell the difference between xM A2 and
A3. However, GPIO 129 does not function on rev A1 and A2, and the TWL
GPIO used on A3 and beyond is not used on rev A1 and A2, there are no
problems created by this fix.

Tested on Beagleboard-xM Rev C1 and Beagleboard Rev B4.

Signed-off-by: Russ Dill <Russ.Dill@ti.com>
Acked-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
12 years agoarm/dts: OMAP2: Fix interrupt controller binding
Jon Hunter [Wed, 13 Jun 2012 00:40:46 +0000 (19:40 -0500)]
arm/dts: OMAP2: Fix interrupt controller binding

When booting with device-tree on an OMAP2420H4, the kernel is hanging when
initialising the interrupts and following kernel dumps is seen ...

[    0.000000] ------------[ cut here ]------------
[    0.000000] WARNING: at arch/arm/mach-omap2/irq.c:271 omap_intc_of_init+0x50/0xb4()
[    0.000000] unable to get intc registers
[    0.000000] Modules linked in:
[    0.000000] [<c001befc>] (unwind_backtrace+0x0/0xf4) from [<c0040c34>] (warn_slowpath_common+0x4c/0x64)
[    0.000000] [<c0040c34>] (warn_slowpath_common+0x4c/0x64) from [<c0040ce0>] (warn_slowpath_fmt+0x30/0x40)
[    0.000000] [<c0040ce0>] (warn_slowpath_fmt+0x30/0x40) from [<c066b8a4>] (omap_intc_of_init+0x50/0xb4)
[    0.000000] [<c066b8a4>] (omap_intc_of_init+0x50/0xb4) from [<c0688b70>] (of_irq_init+0x144/0x288)
[    0.000000] [<c0688b70>] (of_irq_init+0x144/0x288) from [<c0663294>] (init_IRQ+0x14/0x1c)
[    0.000000] [<c0663294>] (init_IRQ+0x14/0x1c) from [<c06607fc>] (start_kernel+0x198/0x304)
[    0.000000] [<c06607fc>] (start_kernel+0x198/0x304) from [<80008044>] (0x80008044)
[    0.000000] ---[ end trace 1b75b31a2719ed1c ]---
[    0.000000] of_irq_init: children remain, but no parents

The OMAP2 interrupt controller binding is missing the number of interrupts and
interrupt controller register address. Adding these fixes the problem.

Signed-off-by: Jon Hunter <jon-hunter@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
12 years agoARM: OMAP2: Fix tusb6010 GPIO interrupt for n8x0
Tony Lindgren [Wed, 20 Jun 2012 14:18:15 +0000 (07:18 -0700)]
ARM: OMAP2: Fix tusb6010 GPIO interrupt for n8x0

Here's one more gpio_to_irq conversion that we missed
earlier. Tested with n800 in gadget mode using USB_ETH.

Cc: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
12 years agoARM: OMAP2+: Fix MUSB ifdefs for platform init code
Tony Lindgren [Wed, 20 Jun 2012 14:18:15 +0000 (07:18 -0700)]
ARM: OMAP2+: Fix MUSB ifdefs for platform init code

Commit 62285963 (usb: musb: drop a gigantic amount of ifdeferry)
got rid of a bunch of ifdefs in the MUSB code. Looks like the
platform init code is still using these dropped defines though,
which in many cases results the board defaulting always to host
mode.

Currently the situation is that USB_MUSB_HDRC is the main
Kconfig option with additional USB_GADGET_MUSB_HDRC so only
these two should be used to select between host and OTG mode.

Fix the situation for omaps. The following users should fix the
platform init code in a similar way:

Dropped Kconfig option          Current users

USB_MUSB_OTG                    blackfin, davinci, not in Kconfigs
USB_MUSB_PERIPHERAL             davinci, not in Kconfigs
USB_MUSB_HOST                   davinci, not in Kconfigs
USB_MUSB_HDRC_HCD               blackfin, not in Kconfigs
USB_MUSB_OTG                    blackfin, not in Kconfigs

Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Sekhar Nori <nsekhar@ti.com>
Cc: linux-usb@vger.kernel.org
Cc: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
12 years agodrm/i915: add HDMI and DP port enumeration on ValleyView
Jesse Barnes [Fri, 15 Jun 2012 18:55:16 +0000 (11:55 -0700)]
drm/i915: add HDMI and DP port enumeration on ValleyView

ValleyView is similar to IbexPeak here, but with different register
offsets.

v2: use SDVOB instead ov VLV_HDMIB (Daniel)
    drop unnecessary eDP check in DP_C init (Daniel)

eDP support will be coming later from Shobit.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: add ValleyView specific CRT detect function
Jesse Barnes [Fri, 15 Jun 2012 18:55:15 +0000 (11:55 -0700)]
drm/i915: add ValleyView specific CRT detect function

Might be able to merge this back in at some point, but we're seeing bugs
with ADPA based detection, so keep it separate for now with explicit
hotplug trigger usage.

v2: drop superfluous debug message
v3: comment forced detection, need to debug (Eugeni)

Reviewed-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: Enable DP panel power sequencing for ValleyView
Shobhit Kumar [Fri, 15 Jun 2012 18:55:14 +0000 (11:55 -0700)]
drm/i915: Enable DP panel power sequencing for ValleyView

VLV supports two dp panels, there are two set of panel power sequence
registers which needed to be programmed based on the configured
pipe. This patch add supports for the same

Acked-by: Acked-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Beeresh G <beeresh.g@intel.com>
Reviewed-by: Vijay Purushothaman <vijay.a.purushothaman@intel.com>
Reviewed-by: Jesse Barnes <jesse.barnes@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
[danvet: Drop the lone hunk and only keep the register definitions - I
loathe incomplete bandaids. Also add a comment that this is for vlv.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agolibceph: flush msgr queue during mon_client shutdown
Sage Weil [Mon, 11 Jun 2012 03:43:56 +0000 (20:43 -0700)]
libceph: flush msgr queue during mon_client shutdown

We need to flush the msgr workqueue during mon_client shutdown to
ensure that any work affecting our embedded ceph_connection is
finished so that we can be safely destroyed.

Previously, we were flushing the work queue after osd_client
shutdown and before mon_client shutdown to ensure that any osd
connection refs to authorizers are flushed.  Remove the redundant
flush, and document in the comment that the mon_client flush is
needed to cover that case as well.

Signed-off-by: Sage Weil <sage@inktank.com>
Reviewed-by: Alex Elder <elder@inktank.com>
(cherry picked from commit f3dea7edd3d449fe7a6d402c1ce56a294b985261)

12 years agorbd: Clear ceph_msg->bio_iter for retransmitted message
Yan, Zheng [Thu, 7 Jun 2012 00:35:55 +0000 (19:35 -0500)]
rbd: Clear ceph_msg->bio_iter for retransmitted message

The bug can cause NULL pointer dereference in write_partial_msg_pages

Signed-off-by: Zheng Yan <zheng.z.yan@intel.com>
Reviewed-by: Alex Elder <elder@inktank.com>
(cherry picked from commit 43643528cce60ca184fe8197efa8e8da7c89a037)

12 years agolibceph: use con get/put ops from osd_client
Sage Weil [Fri, 1 Jun 2012 03:22:18 +0000 (20:22 -0700)]
libceph: use con get/put ops from osd_client

There were a few direct calls to ceph_con_{get,put}() instead of the con
ops from osd_client.c.  This is a bug since those ops aren't defined to
be ceph_con_get/put.

This breaks refcounting on the ceph_osd structs that contain the
ceph_connections, and could lead to all manner of strangeness.

The purpose of the ->get and ->put methods in a ceph connection are
to allow the connection to indicate it has a reference to something
external to the messaging system, *not* to indicate something
external has a reference to the connection.

[elder@inktank.com: added that last sentence]

Signed-off-by: Sage Weil <sage@newdream.net>
Reviewed-by: Alex Elder <elder@inktank.com>
(cherry picked from commit 0d47766f14211a73eaf54cab234db134ece79f49)

12 years agolibceph: osd_client: don't drop reply reference too early
Alex Elder [Mon, 4 Jun 2012 19:43:32 +0000 (14:43 -0500)]
libceph: osd_client: don't drop reply reference too early

In ceph_osdc_release_request(), a reference to the r_reply message
is dropped.  But just after that, that same message is revoked if it
was in use to receive an incoming reply.  Reorder these so we are
sure we hold a reference until we're actually done with the message.

Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Sage Weil <sage@inktank.com>
(cherry picked from commit ab8cb34a4b2f60281a4b18b1f1ad23bc2313d91b)

12 years agoceph: check PG_Private flag before accessing page->private
Yan, Zheng [Mon, 28 May 2012 06:44:30 +0000 (14:44 +0800)]
ceph: check PG_Private flag before accessing page->private

I got lots of NULL pointer dereference Oops when compiling kernel on ceph.
The bug is because the kernel page migration routine replaces some pages
in the page cache with new pages, these new pages' private can be non-zero.

Signed-off-by: Zheng Yan <zheng.z.yan@intel.com>
Signed-off-by: Sage Weil <sage@inktank.com>
(cherry picked from commit 28c0254ede13ab575d2df5c6585ed3d4817c3e6b)

12 years agoMerge branch 'tip/perf/urgent-2' of git://git.kernel.org/pub/scm/linux/kernel/git...
Ingo Molnar [Wed, 20 Jun 2012 12:26:58 +0000 (14:26 +0200)]
Merge branch 'tip/perf/urgent-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace into perf/urgent

12 years agodrm/i915: ValleyView mode setting limits and PLL functions
Jesse Barnes [Fri, 15 Jun 2012 18:55:13 +0000 (11:55 -0700)]
drm/i915: ValleyView mode setting limits and PLL functions

Add some VLV limit structures and update the PLL code.

v2: resolve conflicts, Vijay to re-post with PLL valid checks and fixed limits
v3: re-add dpio write function
v4: squash in Vijay's fixes for the PLL limits and clean up the m/n finder

Signed-off-by: Shobhit Kumar <shobhit.kumar@intel.com>
Signed-off-by: Vijay Purushothaman <vijay.a.purushothaman@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: disable flushing_list/gpu_write_list
Daniel Vetter [Wed, 13 Jun 2012 18:45:19 +0000 (20:45 +0200)]
drm/i915: disable flushing_list/gpu_write_list

This is just the minimal patch to disable all this code so that we can
do decent amounts of QA before we rip it all out.

The complicating thing is that we need to flush the gpu caches after
the batchbuffer is emitted. Which is past the point of no return where
execbuffer can't fail any more (otherwise we risk submitting the same
batch multiple times).

Hence we need to add a flag to track whether any caches associated
with that ring are dirty. And emit the flush in add_request if that's
the case.

Note that this has a quite a few behaviour changes:
- Caches get flushed/invalidated unconditionally.
- Invalidation now happens after potential inter-ring sync.

I've bantered around a bit with Chris on irc whether this fixes
anything, and it might or might not. The only thing clear is that with
these changes it's much easier to reason about correctness.

Also rip out a lone get_next_request_seqno in the execbuffer
retire_commands function. I've dug around and I couldn't figure out
why that is still there, with the outstanding lazy request stuff it
shouldn't be necessary.

v2: Chris Wilson complained that I also invalidate the read caches
when flushing after a batchbuffer. Now optimized.

v3: Added some comments to explain the new flushing behaviour.

Cc: Eric Anholt <eric@anholt.net>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: don't call modeset_init_hw in i915_reset
Daniel Vetter [Tue, 19 Jun 2012 16:40:00 +0000 (18:40 +0200)]
drm/i915: don't call modeset_init_hw in i915_reset

It seems to blow up my ilk in all kinds of strange ways. And now that
we're no longer resetting the entire modeset state, it shouldn't be
necessary any longer.

This essentially reverts

commit f817586cebf1b946d1f327f9a596048efd6b64e9
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Tue Apr 10 15:50:11 2012 +0200

    drm/i915: re-init modeset hw state after gpu reset

safe for the introduction of modeset_init_hw, that one is nice to
prevent code duplication between driver load and resume.

v2: Add a comment to the code to warn future travellers of the dragon
dungeon ahead, suggested by Chris Wilson.

Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: return -ENODEV if hw context are not supported
Daniel Vetter [Tue, 19 Jun 2012 15:16:01 +0000 (17:16 +0200)]
drm/i915: return -ENODEV if hw context are not supported

Otherwise userspace has no way to figure this out.

Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: simplify context_idr_cleanup
Daniel Vetter [Tue, 19 Jun 2012 18:27:39 +0000 (20:27 +0200)]
drm/i915: simplify context_idr_cleanup

The idr code already passes us the pointer associated with that id, so
no need to look it up again. Also, we'll kill the idr right away, so
there's no issue with leaving these dangling pointers behind - the
current code does the same.

v2: Also drop the file argument, spotted by Ben Widawsky.

Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915/context: shut up compiler
Daniel Vetter [Tue, 19 Jun 2012 14:52:32 +0000 (16:52 +0200)]
drm/i915/context: shut up compiler

It found some unused variables.

Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: return -ENOENT if the context doesn't exist
Daniel Vetter [Tue, 19 Jun 2012 14:52:31 +0000 (16:52 +0200)]
drm/i915: return -ENOENT if the context doesn't exist

This is our customary "no such object" errno, not -EINVAL.

Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: initialize the context idr unconditionally
Daniel Vetter [Tue, 19 Jun 2012 14:52:30 +0000 (16:52 +0200)]
drm/i915: initialize the context idr unconditionally

It doesn't hurt and it at least prevents us from OOPSing left and
right at quite a few places. This also allows us to simplify the code
a bit by folding the only line of context_open into the callsite.

We obviuosly also need to run the cleanup code unconditionally, too.

Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: fix module unload after context merge
Daniel Vetter [Tue, 19 Jun 2012 19:55:32 +0000 (21:55 +0200)]
drm/i915: fix module unload after context merge

commit 8e96d9c4d9843f00ebeb4a9b33596d96602ea101
Author: Ben Widawsky <ben@bwidawsk.net>
Date:   Mon Jun 4 14:42:56 2012 -0700

    drm/i915: reset the GPU on context fini

broke module unload because it reset the gpu before we've stopped
touching it. Later on in the unload sequence the ringbuffer code
complained that the gpu would idle properly (because intel_gpu_reset
only resets the hw and not our sw state).

v2: Reorder things so that we reset the gpu _before_ we release the
backing storage of the default context.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=51183
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agoMerge tag 'sound-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Linus Torvalds [Wed, 20 Jun 2012 06:37:19 +0000 (23:37 -0700)]
Merge tag 'sound-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "Most of changes are fairly small and driver-specific.

  A remaining regression fix for USB-audio sync pipe check, a fix for
  HD-audio power-up sequence, fixes for ASoC pxa-ssp compile issues, and
  bunch of ASoC codec and trivial fix patches."

* tag 'sound-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: 6fire: use NULL instead of 0 for pointer assignment
  ALSA: hda - Handle open while transitioning to D3.
  ALSA: snd-usb: make snd_usb_substream_capture_trigger static
  ALSA: snd-usb: fix sync pipe check
  ASoC: tegra+wm8903: turn of mic detect when card is removed
  ASoC: wm8996: Mark the CODEC as cache only when powering off on boot
  ASoC: wm8996: Move reset before the initial regulator disable
  ASoC: wm8996: Remove spurious regulator_bulk_free()
  ASoC: wm8904: Fix cache only management
  ASoC: wm8904: Fix GPIO and MICBIAS initialisation for regmap conversion
  ASoC: fix pxa-ssp compiling issue under mach-mmp
  ARM: MMP: add pxa910-ssp into ssp_id_table

12 years agoRDMA/cma: QP type check on received REQs should be AND not OR
Sean Hefty [Thu, 14 Jun 2012 20:49:09 +0000 (20:49 +0000)]
RDMA/cma: QP type check on received REQs should be AND not OR

Change || check to the intended && when checking the QP type in a
received connection request against the listening endpoint.

Signed-off-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
12 years agoNFS: Initialise commit_info.rpc_out when !defined(CONFIG_NFS_V4)
Trond Myklebust [Tue, 19 Jun 2012 22:38:56 +0000 (18:38 -0400)]
NFS: Initialise commit_info.rpc_out when !defined(CONFIG_NFS_V4)

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: Fred Isaman <iisaman@netapp.com>
12 years agoNFS: Fix a refcounting issue in O_DIRECT
Trond Myklebust [Tue, 19 Jun 2012 17:39:14 +0000 (13:39 -0400)]
NFS: Fix a refcounting issue in O_DIRECT

In nfs_direct_write_reschedule(), the requests from nfs_scan_commit_list
have a refcount of 2, whereas the operations in
nfs_direct_write_completion_ops expect them to have a refcount of 1.

This patch adds a call to release the extra references.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: Fred Isaman <iisaman@netapp.com>
12 years agoMerge tag 'regulator-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie...
Linus Torvalds [Tue, 19 Jun 2012 19:35:44 +0000 (12:35 -0700)]
Merge tag 'regulator-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

Pull regulator fixes from Mark Brown:
 "One small bug fix, plus a rename of all the ST Ericsson regulators in
  the device tree since all the device trees had been written with
  different names and some infelicities in the test proceedures meant
  that the device tree code had apparently never actually been run
  against the upstream device tree."

* tag 'regulator-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
  regulator: Change db8500-prcmu match names to reflect Device Tree
  regulator: Change ab8500 match names to reflect Device Tree
  regulator: Fix the s5m8767a problem of the division by null

12 years agoNFSv4.1: Fix a race in set_pnfs_layoutdriver
Trond Myklebust [Fri, 15 Jun 2012 17:02:58 +0000 (13:02 -0400)]
NFSv4.1: Fix a race in set_pnfs_layoutdriver

The call to try_module_get() dereferences ld_type outside the
spin locks, which means that it may be pointing to garbage if
a module unload was in progress.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
12 years agoKVM: PPC: Book3S HV: Drop locks around call to kvmppc_pin_guest_page
Paul Mackerras [Fri, 1 Jun 2012 10:20:24 +0000 (20:20 +1000)]
KVM: PPC: Book3S HV: Drop locks around call to kvmppc_pin_guest_page

At the moment we call kvmppc_pin_guest_page() in kvmppc_update_vpa()
with two spinlocks held: the vcore lock and the vcpu->vpa_update_lock.
This is not good, since kvmppc_pin_guest_page() calls down_read() and
get_user_pages_fast(), both of which can sleep.  This bug was introduced
in 2e25aa5f ("KVM: PPC: Book3S HV: Make virtual processor area
registration more robust").

This arranges to drop those spinlocks before calling
kvmppc_pin_guest_page() and re-take them afterwards.  Dropping the
vcore lock in kvmppc_run_core() means we have to set the vcore_state
field to VCORE_RUNNING before we drop the lock, so that other vcpus
won't try to run this vcore.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Acked-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Avi Kivity <avi@redhat.com>
12 years agoARM: tegra: make tegra_cpu_reset_handler_enable() __init
Stephen Warren [Mon, 18 Jun 2012 21:01:50 +0000 (15:01 -0600)]
ARM: tegra: make tegra_cpu_reset_handler_enable() __init

This solves a section mismatch warning. I hadn't noticed this before,
because my compiler was inlining tegra_cpu_reset_handler_enable() inside
tegra_cpu_reset_handler_init(), which is already __init, but I switched
compilers and it stopped doing that.

Cc: <stable@kernel.org> # v3.4
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
12 years agoextcon: max8997: Add missing kfree for info->edev in max8997_muic_remove()
Axel Lin [Sat, 16 Jun 2012 13:25:11 +0000 (21:25 +0800)]
extcon: max8997: Add missing kfree for info->edev in max8997_muic_remove()

extcon_dev_unregister(info->edev) doest not free info->edev, we need to call
kfree(info->edev) here.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
12 years agoextcon: Set platform drvdata in gpio_extcon_probe() and fix irq leak
Axel Lin [Sat, 16 Jun 2012 03:55:18 +0000 (11:55 +0800)]
extcon: Set platform drvdata in gpio_extcon_probe() and fix irq leak

Add missing platform_set_drvdata() in gpio_extcon_probe(), otherwise calling
platform_get_drvdata in gpio_extcon_remove() returns NULL.

Also add missing free_irq call in gpio_extcon_remove().

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
12 years agoextcon: Fix wrong index in max8997_extcon_cable[]
Axel Lin [Sat, 16 Jun 2012 03:36:08 +0000 (11:36 +0800)]
extcon: Fix wrong index in max8997_extcon_cable[]

Currently, the index of "Dock-desk" and "Dock-card" are the same.
Thus the latter one overrides the first one.
Then we have problem when calling extcon_find_cable_index() because
edev->supported_cable[7] only matches "Dock-card".

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
12 years agokmsg - kmsg_dump() fix CONFIG_PRINTK=n compilation
Kay Sievers [Mon, 18 Jun 2012 22:32:57 +0000 (00:32 +0200)]
kmsg - kmsg_dump() fix CONFIG_PRINTK=n compilation

Signed-off-by: Kay Sievers <kay@vrfy.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Reported-by: Randy Dunlap <rdunlap@xenotime.net>
Reported-by: Fengguang Wu <wfg@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
12 years agocgroups: Account for CSS_DEACT_BIAS in __css_put
Salman Qazi [Thu, 14 Jun 2012 21:55:30 +0000 (14:55 -0700)]
cgroups: Account for CSS_DEACT_BIAS in __css_put

When we fixed the race between atomic_dec and css_refcnt, we missed
the fact that css_refcnt internally subtracts CSS_DEACT_BIAS to get
the actual reference count.  This can potentially cause a refcount leak
if __css_put races with cgroup_clear_css_refs.

Signed-off-by: Salman Qazi <sqazi@google.com>
Acked-by: Li Zefan <lizefan@huawei.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
12 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-edac
Linus Torvalds [Mon, 18 Jun 2012 20:34:25 +0000 (13:34 -0700)]
Merge git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-edac

Pull EDAC fixes from Mauro Carvalho Chehab.

* git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-edac:
  edac: Do alignment logic properly in edac_align_ptr()
  mpc85xx_edac: fix error: too few arguments to function 'edac_mc_alloc'
  edac: fix the error about memory type detection on SandyBridge
  edac: avoid mce decoding crash after edac driver unloaded

12 years agoMerge branch 'v9fs-devel' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh...
Linus Torvalds [Mon, 18 Jun 2012 19:21:25 +0000 (12:21 -0700)]
Merge branch 'v9fs-devel' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs

Pull a 9p bugfix from Eric Van Hensbergen.

* 'v9fs-devel' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs:
  9p: BUG before corrupting memory

12 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Linus Torvalds [Mon, 18 Jun 2012 19:20:36 +0000 (12:20 -0700)]
Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

Pull a crypto fix from Herbert Xu:
 "This push fixes another bug in the atmel-rng that made it produce
  completely useless output."

* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  hwrng: atmel-rng - fix data valid check

12 years agoMerge tag 'mmc-fixes-for-3.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Mon, 18 Jun 2012 18:53:34 +0000 (11:53 -0700)]
Merge tag 'mmc-fixes-for-3.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc

Pull MMC fixes from Chris Ball:
 - atmel-mci: Fixes for NULL timer and DMA burst/chunk size
 - dw_mmc: Fix DMA ordering, clkdiv calculation, NULL host->data
 - mxs_mmc: Compile fix for CONFIG_OF=y && CONFIG_PM=n
 - omap: Fix NULL deref in mmc_omap_remove_slot(), reg_shift initialization
 - sdhci-s3c: Fix boot regression by adding IRQF_ONESHOT flag
 - Small fixes to core/sd, core/sdio, sdhci

* tag 'mmc-fixes-for-3.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc:
  mmc: mxs-mmc: Move of_match_table out of CONFIG_PM
  mmc: sdhci-s3c: pass IRQF ONESHOT to request threaded irq
  mmc: core: return an error on suspend if mmc_deselect_cards fails
  mmc: omap: Fix broken reg_shift initialization
  mmc: omap: Fix NULL pointer dereference if mmc_omap_new_slot() fails
  mmc: omap: Fix a section warning regression
  mmc: dw_mmc: correct the calculation for CLKDIV
  mmc: dw_mmc: fix incorrect setting of host->data of NULL
  mmc: dw_mmc: fix the IDMAC sw reset
  mmc: dw_mmc: fix the transmission handling in IDMAC
  mmc: sdio: fix setting card data bus width as 4-bit
  mmc: atmel-mci: fix burst/chunk size modification
  mmc: atmel-mci: fix data timeout issue
  mmc: sdhci: Use DBG() instead of pr_warning() on large timeout

12 years agoMerge tag 'rproc-fixes-for-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Mon, 18 Jun 2012 18:52:25 +0000 (11:52 -0700)]
Merge tag 'rproc-fixes-for-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/ohad/remoteproc

Pull remoteproc fixes from Ohad Ben-Cohen:
 "A few relatively-small remoteproc fixes for 3.5: two error path fixes,
  and one -Wformat warning fix."

* tag 'rproc-fixes-for-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/ohad/remoteproc:
  remoteproc/omap: fix dev_err typo
  remoteproc: fix missing fault indication in error-path
  remoteproc: fix print format warnings

12 years agoMerge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelv...
Linus Torvalds [Mon, 18 Jun 2012 18:51:10 +0000 (11:51 -0700)]
Merge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging

Pull hwmon subsystem fixes from Jean Delvare.

* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
  hwmon: (coretemp) Drop needless initialization
  hwmon: (coretemp) Document TjMax for 3rd generation i5/i7 processors
  hwmon: (coretemp) Improve support for TjMax detection on Atom CPUs
  hwmon: (coretemp) Add support for Atom D2000 and N2000 series CPU models
  hwmon: (coretemp) Improve support of recent Atom CPU models

12 years agobug.h: Fix up powerpc build regression.
Paul Mundt [Mon, 18 Jun 2012 04:54:17 +0000 (13:54 +0900)]
bug.h: Fix up powerpc build regression.

The asm-generic/bug.h __ASSEMBLY__ guarding is completely bogus, which
tripped up the powerpc build when the kernel.h include was added:

In file included from include/asm-generic/bug.h:5:0,
 from arch/powerpc/include/asm/bug.h:127,
 from arch/powerpc/kernel/head_64.S:31:
include/linux/kernel.h:44:0: warning: "ALIGN" redefined [enabled by default]
include/linux/linkage.h:57:0: note: this is the location of the previous definition
include/linux/sysinfo.h: Assembler messages:
include/linux/sysinfo.h:7: Error: Unrecognized opcode: `struct'
include/linux/sysinfo.h:8: Error: Unrecognized opcode: `__kernel_long_t'

Moving the __ASSEMBLY__ guard up and stashing the kernel.h include under
it fixes this up, as well as covering the case the original fix was
attempting to handle.

Tested-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agoMakefile: fix up CROSS_COMPILE and READABLE_ASM interaction.
Paul Mundt [Mon, 18 Jun 2012 04:48:08 +0000 (13:48 +0900)]
Makefile: fix up CROSS_COMPILE and READABLE_ASM interaction.

When the READABLE_ASM cc-option tests were added they were done so prior
to the arch Makefile include, resulting in cc-option being run on the
host cc instead of the factoring in the cross prefix set up by the
architecture.

This bumps the include back up so that cc-option actually runs on the
compiler that we're building with.

Cc: Andi Kleen <andi@firstfloor.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agodrm/i915: add L3 bank clock gating disable on VLV
Jesse Barnes [Thu, 14 Jun 2012 18:04:50 +0000 (11:04 -0700)]
drm/i915: add L3 bank clock gating disable on VLV

Prevents a possible hang: WaDisableL3Bank2xClockGate.

v2: only apply to VLV, IVB doesn't need this anymore

References: https://bugs.freedesktop.org/show_bug.cgi?id=50245
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: add TDL unit clock gating disable for VLV
Jesse Barnes [Thu, 14 Jun 2012 18:04:49 +0000 (11:04 -0700)]
drm/i915: add TDL unit clock gating disable for VLV

Another required workaround for a potential hang:
WaDisableTDLUnitClockGating.

v2: only apply this to VLV, IVB doesn't need it anymore (Eugeni)

References: https://bugs.freedesktop.org/show_bug.cgi?id=50245
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: load boot context at driver init time
Jesse Barnes [Thu, 14 Jun 2012 18:04:48 +0000 (11:04 -0700)]
drm/i915: load boot context at driver init time

According to the bspec for MBCTL:

Driver must set bit in the following scenarios:
  - to realod teh h/w boot context every time it gets loaded through OS
  - after an FLR clears the register (BIOS won't run afterwards)

References: https://bugs.freedesktop.org/show_bug.cgi?id=50237
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: disable RCBP and VDS unit clock gating on SNB and VLV
Jesse Barnes [Thu, 14 Jun 2012 18:04:47 +0000 (11:04 -0700)]
drm/i915: disable RCBP and VDS unit clock gating on SNB and VLV

The RCBP workaround still applies on these chips, and we need VDS as well.

v2: remove MB boot fetch that snuck in (Daniel)
    add workaround tags to comments for easier internal tracking (Daniel)
v3: only apply RCPB and VDS on SNB and VLV, IVB doesn't need them (Eugeni)

References: https://bugs.freedesktop.org/show_bug.cgi?id=50251
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agohwmon: (emc2103) Fix use of an uninitilized variable in error case
Guenter Roeck [Sat, 2 Jun 2012 17:16:32 +0000 (10:16 -0700)]
hwmon: (emc2103) Fix use of an uninitilized variable in error case

Fix:

emc2103.c: In function set_pwm_enable:
emc2103.c:463:12: warning: conf_reg may be used uninitialized in this function

by checking the return value from read_u8_from_i2c(). This fixes a real problem,
as conf_reg is really uninitialized if read_u8_from_i2c returns an error.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Robert Coulson <robert.coulson@ericsson.com>
Acked-by: Jean Delvare <khali@linux-fr.org>
12 years agohwmon: (applesmc) Limit key length in warning messages
Henrik Rydberg [Thu, 7 Jun 2012 08:54:29 +0000 (04:54 -0400)]
hwmon: (applesmc) Limit key length in warning messages

Key lookups may call read_smc() with a fixed-length key string,
and if the lookup fails, trailing stack content may appear in the
kernel log. Fixed with this patch.

Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Cc: stable@vger.kernel.org
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
12 years agoftrace: Make all inline tags also include notrace
Steven Rostedt [Thu, 14 Jun 2012 14:54:28 +0000 (10:54 -0400)]
ftrace: Make all inline tags also include notrace

Commit 5963e317b1e9d2a ("ftrace/x86: Do not change stacks in DEBUG when
calling lockdep") prevented lockdep calls from the int3 breakpoint handler
from reseting the stack if a function that was called was in the process
of being converted for tracing and had a breakpoint on it. The idea is,
before calling the lockdep code, do a load_idt() to the special IDT that
kept the breakpoint stack from reseting. This worked well as a quick fix
for this kernel release, until a certain config caused a lockup in the
function tracer start up tests.

Investigating it, I found that the load_idt that was used to prevent
the int3 from changing stacks was itself being traced!

Even though the config had CONFIG_OPTIMIZE_INLINING disabled, and
all 'inline' tags were set to always inline, there were still cases that
it did not inline! This was caused by CONFIG_PARAVIRT_GUEST, where it
would add a pointer to the native_load_idt() which made that function
to be traced.

Commit 45959ee7aa645815a ("ftrace: Do not function trace inlined functions")
only touched the 'inline' tags when CONFIG_OPMITIZE_INLINING was enabled.
PARAVIRT_GUEST shows that this was not enough and we need to also
mark always_inline with notrace as well.

Reported-by: Fengguang Wu <wfg@linux.intel.com>
Tested-by: Fengguang Wu <wfg@linux.intel.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
12 years agoNFSv4.1: Fix umount when filelayout DS is also the MDS
Trond Myklebust [Thu, 14 Jun 2012 17:08:38 +0000 (13:08 -0400)]
NFSv4.1: Fix umount when filelayout DS is also the MDS

Currently there is a 'chicken and egg' issue when the DS is also the mounted
MDS. The nfs_match_client() reference from nfs4_set_ds_client bumps the
cl_count, the nfs_client is not freed at umount, and nfs4_deviceid_purge_client
is not called to dereference the MDS usage of a deviceid which holds a
reference to the DS nfs_client.  The result is the umount program returns,
but the nfs_client is not freed, and the cl_session hearbeat continues.

The MDS (and all other nfs mounts) lose their last nfs_client reference in
nfs_free_server when the last nfs_server (fsid) is umounted.
The file layout DS lose their last nfs_client reference in destroy_ds
when the last deviceid referencing the data server is put and destroy_ds is
called. This is triggered by a call to nfs4_deviceid_purge_client which
removes references to a pNFS deviceid used by an MDS mount.

The fix is to track how many pnfs enabled filesystems are mounted from
this server, and then to purge the device id cache once that count reaches
zero.

Reported-by: Jorge Mora <Jorge.Mora@netapp.com>
Reported-by: Andy Adamson <andros@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
12 years agoSPI: fix over-eager devm_xxx() conversion
Russell King [Mon, 18 Jun 2012 10:27:04 +0000 (11:27 +0100)]
SPI: fix over-eager devm_xxx() conversion

1a77b127ae (OMAP : SPI : use devm_* functions) converted the SPI
device controller state to use devm_kzalloc().  Unfortunately, this
is used against an unbound struct device, which results in the
following when the device is bound to its driver:

------------[ cut here ]------------
WARNING: at /home/rmk/git/linux-rmk/drivers/base/dd.c:257 driver_probe_device+0x78/0x21c()
Modules linked in:
Backtrace:
[<c0017d0c>] (dump_backtrace+0x0/0x10c) from [<c033e208>] (dump_stack+0x18/0x1c) r7:00000000 r6:c01ff28c r5:c040050c r4:00000101
[<c033e1f0>] (dump_stack+0x0/0x1c) from [<c00337ec>] (warn_slowpath_common+0x58/0x70)
[<c0033794>] (warn_slowpath_common+0x0/0x70) from [<c0033828>] (warn_slowpath_null+0x24/0x2c)
[<c0033804>] (warn_slowpath_null+0x0/0x2c) from [<c01ff28c>] (driver_probe_device+0x78/0x21c)
[<c01ff214>] (driver_probe_device+0x0/0x21c) from [<c01ff49c>] (__driver_attach+0x6c/0x90)
[<c01ff430>] (__driver_attach+0x0/0x90) from [<c01fda70>] (bus_for_each_dev+0x58/0x98)
[<c01fda18>] (bus_for_each_dev+0x0/0x98) from [<c01ff0f4>] (driver_attach+0x20/0x28)
[<c01ff0d4>] (driver_attach+0x0/0x28) from [<c01fe2f4>] (bus_add_driver+0xb4/0x230)
[<c01fe240>] (bus_add_driver+0x0/0x230) from [<c01ffb24>] (driver_register+0xac/0x138)
[<c01ffa78>] (driver_register+0x0/0x138) from [<c0215d4c>] (spi_register_driver+0x4c/0x60)
[<c0215d00>] (spi_register_driver+0x0/0x60) from [<c045414c>] (ks8851_init+0x14/0x1c)
[<c0454138>] (ks8851_init+0x0/0x1c) from [<c0008770>] (do_one_initcall+0x9c/0x164)
[<c00086d4>] (do_one_initcall+0x0/0x164) from [<c0436410>] (kernel_init+0x128/0x210)
[<c04362e8>] (kernel_init+0x0/0x210) from [<c0038754>] (do_exit+0x0/0x72c)
---[ end trace 4dcda79f5e89dd84 ]---
ks8851 spi1.0: message enable is 0
ks8851 spi1.0: eth0: revision 0, MAC 08:00:28:01:4d:c6, IRQ 194, has EEPROM

Fix this by partially reverting the original commit.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
12 years agoperf: Use css_tryget() to avoid propping up css refcount
Salman Qazi [Thu, 14 Jun 2012 22:31:09 +0000 (15:31 -0700)]
perf: Use css_tryget() to avoid propping up css refcount

An rmdir pushes css's ref count to zero.  However, if the associated
directory is open at the time, the dentry ref count is non-zero.  If
the fd for this directory is then passed into perf_event_open, it
does a css_get().  This bounces the ref count back up from zero.  This
is a problem by itself.  But what makes it turn into a crash is the
fact that we end up doing an extra dput, since we perform a dput
when css_put sees the ref count go down to zero.

css_tryget() does not fall into that trap. So, we use that instead.

Reproduction test-case for the bug:

 #include <unistd.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
 #include <linux/unistd.h>
 #include <linux/perf_event.h>
 #include <string.h>
 #include <errno.h>
 #include <stdio.h>

 #define PERF_FLAG_PID_CGROUP    (1U << 2)

 int perf_event_open(struct perf_event_attr *hw_event_uptr,
                     pid_t pid, int cpu, int group_fd, unsigned long flags) {
         return syscall(__NR_perf_event_open,hw_event_uptr, pid, cpu,
                 group_fd, flags);
 }

 /*
  * Directly poke at the perf_event bug, since it's proving hard to repro
  * depending on where in the kernel tree.  what moved?
  */
 int main(int argc, char **argv)
 {
        int fd;
        struct perf_event_attr attr;
        memset(&attr, 0, sizeof(attr));
        attr.exclude_kernel = 1;
        attr.size = sizeof(attr);
        mkdir("/dev/cgroup/perf_event/blah", 0777);
        fd = open("/dev/cgroup/perf_event/blah", O_RDONLY);
        perror("open");
        rmdir("/dev/cgroup/perf_event/blah");
        sleep(2);
        perf_event_open(&attr, fd, 0, -1,  PERF_FLAG_PID_CGROUP);
        perror("perf_event_open");
        close(fd);
        return 0;
 }

Signed-off-by: Salman Qazi <sqazi@google.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Tejun Heo <tj@kernel.org>
Link: http://lkml.kernel.org/r/20120614223108.1025.2503.stgit@dungbeetle.mtv.corp.google.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
12 years agodrm/i915: fixup hangman rebase goof-up
Daniel Vetter [Sat, 16 Jun 2012 16:29:44 +0000 (18:29 +0200)]
drm/i915: fixup hangman rebase goof-up

I've added a bit of logic such that running the hangman test on chips
without any hw reset support at all doesn't wedge the gpu because the
reset failed. This relied on checking for non-null stop_rings.
Unfortunately I've botched a rebase somewhere and stop_rings is still
cleared at the old place before the reset code.

Fix this up so that running the i-g-t tests on gen2/3 doesn't result
in a wedged gpu.

v2: Actually remove the lines instead of adding them twice ... my git
license should be revoked immediately.

Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: set IDICOS to medium uncore resources
Ben Widawsky [Sat, 5 May 2012 01:58:59 +0000 (18:58 -0700)]
drm/i915: set IDICOS to medium uncore resources

I'm seeing about a 5% FPS improvement across various benchmarks on my
IVB i3. Rumor has it that the higher end parts show even more benefit.

This derives from a patch originally given to me by Bernard. The docs
are  confusing about the definition names (ie. medium really seems like
max), but it would seem it gives more cache to the GT at the expense of
uncore. This configuration makes the split most in favor of the GT. I've
not tried the other IDICOS values.

Cc: "Kilarski, Bernard R" <bernard.r.kilarski@intel.com>
Acked-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: disable contexts on old HW
Ben Widawsky [Sun, 17 Jun 2012 16:37:24 +0000 (09:37 -0700)]
drm/i915: disable contexts on old HW

This got dropped as a result of the last round of comments. I didn't
test it on unsupported HW (which this is likely the case).

Note that this prevents hw context from blowing up on any pre-gen6 hw.

Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=51142
[danvet: Added note and buglink.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: properly wait for SBI status
Eugeni Dodonov [Fri, 8 Jun 2012 19:43:19 +0000 (16:43 -0300)]
drm/i915: properly wait for SBI status

Somehow this went unnoticed in the past reviews, but the condition would
never timeout properly.

This was initially introduced in the v2 of original SBI enabling patch.
Highly embarrassing.

Note that we now actually time out for the read, which resulted in gcc
complaining that we can now return unitialized garbage if that
happens. There's not much we can do here because there's not much
point in thread -EIO all the way down through these functions. Hence
simply shut up the compiler.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
[danvet: Added note and squashed uninitialized value shut-up into this
patch.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agoALSA: 6fire: use NULL instead of 0 for pointer assignment
Daniel Mack [Sat, 16 Jun 2012 14:58:36 +0000 (16:58 +0200)]
ALSA: 6fire: use NULL instead of 0 for pointer assignment

Signed-off-by: Daniel Mack <zonque@gmail.com>
Cc: Torsten Schenk <torsten.schenk@zoho.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
12 years agoALSA: hda - Handle open while transitioning to D3.
Dylan Reid [Sat, 16 Jun 2012 02:36:23 +0000 (19:36 -0700)]
ALSA: hda - Handle open while transitioning to D3.

This addresses an issue encountered when a pcm is opened while
transitioning to low power state (codec->power_on == 1 &&
codec->power_transition == -1).  Add snd_pcm_power_up_d3wait to
hda_codec.  This function is used to power up from azx_open as opposed
to snd_hda_power_up used from codec_exec_verb. When powering up from
azx_open, wait for pending power downs to complete, avoiding the power
up continuing in parallel with the power down on the work queue.

The specific issue seen was with the CS4210 codec, it powers off the ADC
and DAC nid in its suspend handler.  If it is re-opened before the
~100ms power down process completes, the ADC and DAC nid are initialized
while powered down and audio is lost until another suspend/resume cycle.

Signed-off-by: Dylan Reid <dgreid@chromium.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
12 years agoALSA: snd-usb: make snd_usb_substream_capture_trigger static
Daniel Mack [Sat, 16 Jun 2012 14:58:04 +0000 (16:58 +0200)]
ALSA: snd-usb: make snd_usb_substream_capture_trigger static

Signed-off-by: Daniel Mack <zonque@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
12 years agoALSA: snd-usb: fix sync pipe check
Daniel Mack [Sun, 17 Jun 2012 11:44:27 +0000 (13:44 +0200)]
ALSA: snd-usb: fix sync pipe check

Fix a bogus sanity check for sync pipe in pcm.c. This flaw was
introduced during the streaming logic refactorization.

While at it, improve the error messages that are generated in such cases.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Reported-and-tested-by: <ben@b1c1l1.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
12 years agoMerge tag 'asoc-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound...
Takashi Iwai [Mon, 18 Jun 2012 06:36:00 +0000 (08:36 +0200)]
Merge tag 'asoc-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Updates for 3.5

All driver specific and fairly small.  The pxa-ssp changes are larger
than I'd like but they're build failures and are pretty clear to
inspection.

12 years agoMerge branch 'hfsplus'
Linus Torvalds [Sun, 17 Jun 2012 21:40:35 +0000 (14:40 -0700)]
Merge branch 'hfsplus'

Merge hfsplus fixes from Christoph Hellwig:
 "Two small hfsplus fixes:

   - a one liner regression fix for large volume handling from Janne
     Kalliomäki.
   - a fixup for the boot image blessing feature to make it work with
     the fake "hardlinks" in hfsplus from Matthew Garrett."

* branch 'hfsplus':
  hfsplus: fix bless ioctl when used with hardlinks
  hfsplus: fix overflow in sector calculations in hfsplus_submit_bio

12 years agohfsplus: fix bless ioctl when used with hardlinks
Matthew Garrett [Sun, 17 Jun 2012 21:05:25 +0000 (17:05 -0400)]
hfsplus: fix bless ioctl when used with hardlinks

HFS+ doesn't really implement hard links - instead, hardlinks are indicated
by a magic file type which refers to an indirect node in a hidden
directory. The spec indicates that stat() should return the inode number
of the indirect node, but it turns out that this doesn't satisfy the
firmware when it's looking for a bootloader - it wants the catalog ID of
the hardlink file instead. Fix up this case.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agohfsplus: fix overflow in sector calculations in hfsplus_submit_bio
Janne Kalliomäki [Sun, 17 Jun 2012 21:05:24 +0000 (17:05 -0400)]
hfsplus: fix overflow in sector calculations in hfsplus_submit_bio

The variable io_size was unsigned int, which caused the wrong sector number
to be calculated after aligning it. This then caused mount to fail with big
volumes, as backup volume header information was searched from a
wrong sector.

Signed-off-by: Janne Kalliomäki <janne@tuxera.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agoARM: 7427/1: mmc: mmci: Defer probe() in case of yet uninitialized GPIOs
Roland Stigge [Sun, 17 Jun 2012 20:14:27 +0000 (21:14 +0100)]
ARM: 7427/1: mmc: mmci: Defer probe() in case of yet uninitialized GPIOs

If the GPIOs used by the MMCI driver are not registered yet when the driver is
probe()d, they can't be used. This happens if the mmci driver is probed before
the respective GPIO controller (e.g. on the LPC32xx EA3250 board, the PCA9532
GPIO controller would be initialized via DT after mmci). Therefore, we defer
mmci in this case.

Signed-off-by: Roland Stigge <stigge@antcom.de>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
12 years agoARM: 7426/1: mmc: mmci: Remove wrong error handling of gpio 0
Roland Stigge [Sun, 17 Jun 2012 20:13:34 +0000 (21:13 +0100)]
ARM: 7426/1: mmc: mmci: Remove wrong error handling of gpio 0

Zero is a valid GPIO and shouldn't be handled as an error return code from
of_get_named_gpio(). It was a leftover from old code before getting
pdata->gpio_*() was modified.

Signed-off-by: Roland Stigge <stigge@antcom.de>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
12 years agoARM: OMAP: PM: Lock clocks list while generating summary
Todd Poynor [Sun, 17 Jun 2012 17:57:50 +0000 (11:57 -0600)]
ARM: OMAP: PM: Lock clocks list while generating summary

Commit a53025724052b2b1edbc982a4a248784638f563d (OMAP: Add debugfs
node to show the summary of all clocks) introduced clock summary,
however, we are interested in seeing snapshot of the clock state, not
in dynamically changing clock configurations as the data provided by
clock summary will then be useless for debugging configuration
issues. So, hold the common lock when dumping the clock summary.

Cc: Paul Walmsley <paul@pwsan.com>
Cc: Tony Lindgren <tony@atomide.com>
Signed-off-by: Todd Poynor <toddpoynor@google.com>
[nm@ti.com: added commit message]
Signed-off-by: Nishanth Menon <nm@ti.com>
[paul@pwsan.com: minor edits to commit message]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
12 years agoARM: iconnect: Remove include of removed linux/spi/orion_spi.h
Andrew Lunn [Fri, 8 Jun 2012 09:36:45 +0000 (11:36 +0200)]
ARM: iconnect: Remove include of removed linux/spi/orion_spi.h

v3.5-rc1 fails to build when DT and iconnect is enabled because of
this now none existant include file.

Also remove the other two SPI include files, which are not needed
with the move to DT.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Arnaud Patard <arnaud.patard@rtp-net.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
12 years agopinctrl/nomadik: document Alt-C glitch
Linus Walleij [Tue, 22 May 2012 09:46:45 +0000 (11:46 +0200)]
pinctrl/nomadik: document Alt-C glitch

This documentation comment existed in an earlier patch set for
GPIO consolidation, so I'm saving it for maintainability of the
code.

Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
12 years agopinctrl: mxs: Use kfree to fix build error
Fabio Estevam [Wed, 13 Jun 2012 17:06:07 +0000 (14:06 -0300)]
pinctrl: mxs: Use kfree to fix build error

commit 0bf7481 (pinctrl: pinctrl-mxs: Take care of frees if the kzalloc fails)
introduced the following build error:

drivers/pinctrl/pinctrl-mxs.c:140:3: error: implicit declaration of function 'free'

Use kfree function instead.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Devendra Naga <devendra.aaru@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
12 years agoregulator: Change db8500-prcmu match names to reflect Device Tree
Lee Jones [Wed, 30 May 2012 04:47:27 +0000 (12:47 +0800)]
regulator: Change db8500-prcmu match names to reflect Device Tree

The 'name' field in 'struct of_regulator_match' expects to match with
its corresponding regulator device node in the Device Tree. This patch
renames each of the regulators in the db8500-prcum regulator driver so
this is true.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
12 years agoregulator: Change ab8500 match names to reflect Device Tree
Lee Jones [Wed, 30 May 2012 04:47:26 +0000 (12:47 +0800)]
regulator: Change ab8500 match names to reflect Device Tree

The 'name' field in 'struct of_regulator_match' expects to match with
its corresponding regulator device node in the Device Tree. This patch
renames each of the regulators in the ab8500 regulator driver so this
is true.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
12 years agoregulator: Fix the s5m8767a problem of the division by null
Sangbeom Kim [Wed, 13 Jun 2012 08:27:16 +0000 (17:27 +0900)]
regulator: Fix the s5m8767a problem of the division by null

If ramp_delay is 0, delay value can be divided by zero.
This patch can fix the problem.

Signed-off-by: Sangbeom Kim <sbkim73@samsung.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
12 years agohwmon: (coretemp) Drop needless initialization
Jean Delvare [Sun, 17 Jun 2012 16:05:06 +0000 (18:05 +0200)]
hwmon: (coretemp) Drop needless initialization

The value is overridden a few lines later.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Guenter Roeck <guenter.roeck@ericsson.com>
12 years agohwmon: (coretemp) Document TjMax for 3rd generation i5/i7 processors
Guenter Roeck [Sun, 17 Jun 2012 16:05:06 +0000 (18:05 +0200)]
hwmon: (coretemp) Document TjMax for 3rd generation i5/i7 processors

Tjmax values from Intel datasheets.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
12 years agohwmon: (coretemp) Improve support for TjMax detection on Atom CPUs
Guenter Roeck [Sun, 17 Jun 2012 16:05:05 +0000 (18:05 +0200)]
hwmon: (coretemp) Improve support for TjMax detection on Atom CPUs

Atom CPUs don't have a register to retrieve TjMax. Detection so far was
incomplete. Use the X86 model ID to improve it.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
12 years agohwmon: (coretemp) Add support for Atom D2000 and N2000 series CPU models
Guenter Roeck [Sun, 17 Jun 2012 16:05:05 +0000 (18:05 +0200)]
hwmon: (coretemp) Add support for Atom D2000 and N2000 series CPU models

Document the Atom series D2000 and N2000 (Cedar Trail) as being supported.
List and set TjMax for those series.

Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: "R, Durgadoss" <durgadoss.r@intel.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
12 years agohwmon: (coretemp) Improve support of recent Atom CPU models
Jean Delvare [Sun, 17 Jun 2012 16:05:05 +0000 (18:05 +0200)]
hwmon: (coretemp) Improve support of recent Atom CPU models

Document the new Atom series (Tunnel Creek and Medfield) as being
supported, and list TjMax for the Atom E600 series.

Also enable the Atom tjmax heuristic for these Atom CPU models.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Reviewed-by: Guenter Roeck <guenter.roeck@ericsson.com>
Cc: Alexander Stein <alexander.stein@systec-electronic.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: "R, Durgadoss" <durgadoss.r@intel.com>