Commit Graph

414069 Commits

Author SHA1 Message Date
Takashi Iwai afdcd431ce ASoC: Fixes for v3.13
A few driver and error handling fixes plus a fix to ensure that we
 mute streams when we should.  The Atmel trigger addition is a fix to
 ensure that we do the correct sequence of interactions with the
 hardware.
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Merge tag 'asoc-v3.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Fixes for v3.13

A few driver and error handling fixes plus a fix to ensure that we
mute streams when we should.  The Atmel trigger addition is a fix to
ensure that we do the correct sequence of interactions with the
hardware.
2013-12-13 14:54:53 +01:00
Mark Brown 334a82086d Merge remote-tracking branch 'regulator/topic/constraints' into regulator-linus 2013-12-13 13:44:57 +00:00
Dan Williams 8194ee2776 dmaengine: fix sleep in atomic
BUG: sleeping function called from invalid context at mm/mempool.c:203
 in_atomic(): 1, irqs_disabled(): 0, pid: 43502, name: linbug
 no locks held by linbug/43502.
 CPU: 7 PID: 43502 Comm: linbug Not tainted 3.13.0-rc1+ #15
 Hardware name:
  0000000000000010 ffff88005ebd1878 ffffffff8172d512 ffff8801752bc1c0
  ffff8801752bc1c0 ffff88005ebd1898 ffffffff8109d1f6 ffff88005f9a3c58
  ffff880177f0f080 ffff88005ebd1918 ffffffff81161f43 ffff88005ebd18f8
 Call Trace:
  [<ffffffff8172d512>] dump_stack+0x4e/0x68
  [<ffffffff8109d1f6>] __might_sleep+0xe6/0x120
  [<ffffffff81161f43>] mempool_alloc+0x93/0x170
  [<ffffffff810c0c34>] ? mark_held_locks+0x74/0x140
  [<ffffffff8118a826>] ? follow_page_mask+0x556/0x600
  [<ffffffff814107ae>] dmaengine_get_unmap_data+0x2e/0x60
  [<ffffffff81410f11>] dma_async_memcpy_pg_to_pg+0x41/0x1c0
  [<ffffffff814110e0>] dma_async_memcpy_buf_to_pg+0x50/0x60
  [<ffffffff81411bdc>] dma_memcpy_to_iovec+0xfc/0x190
  [<ffffffff816163af>] dma_skb_copy_datagram_iovec+0x6f/0x2b0

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2013-12-13 00:57:03 -08:00
Hui Wang c29cb5eb81 ALSA: hda - Add Dell headset detection quirk for three laptop models
On the Dell machines with codec whose Subsystem Id is 0x10280610,
0x10280629 or 0x1028063e, no external microphone can be detected when
plugging a 3-ring headset. If we add "model=dell-headset-multi" for
the snd-hda-intel.ko, the problem will disappear.

The codecs on these machines belong to alc_269 family.

BugLink: https://bugs.launchpad.net/bugs/1260303
Cc: David Henningsson <david.henningsson@canonical.com>
Cc: stable@vger.kernel.org
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-12-13 09:40:31 +01:00
Russell King 0be8253fa2 dmaengine: mv_xor: fix oops when channels fail to initialise
When a channel fails to initialise, we error out and clean up any
previously unregistered channels by walking the entire xordev->channels
array.  Unfortunately, there are paths which end up storing an error
pointer in this array, which we then try and dereference in the cleanup
code, which causes an oops.

Fix this by avoiding writing invalid pointers to this array in the first
place.

Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2013-12-12 22:48:53 -08:00
Ezequiel Garcia d16695a750 dma: mv_xor: Use dmaengine_unmap_data for the self-tests
The driver-specific unmap code was removed in:

  commit 54f8d501e8
  Author: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
  Date:   Fri Oct 18 19:35:32 2013 +0200

      dmaengine: remove DMA unmap from drivers

which had the side-effect of not unmapping the self-test mappings.
Fix this by using dmaengine_unmap_data in the self-test routines.

In addition, since dmaengine_unmap() assumes that all mappings were created
with dma_map_page, this commit changes the single mapping to a page mapping
to avoid an incorrect unmapping of the memcpy self-test.

The allocation could be changed to be alloc_page(), but sticking to kmalloc
results in a less intrusive patch. The size of the test buffer is increased,
since dma_map_page() seem to fail when the source and destination pages are
the same page.

Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2013-12-12 22:48:53 -08:00
Dan Williams 3cc377b9ae dmaengine: fix enable for high order unmap pools
The higher order mempools support raid operations, and we want to
disable them when raid support is not enabled.  Making them conditional
on ASYNC_TX_DMA is not sufficient as other users (specifically dmatest)
will also issue raid operations.  Make raid drivers explicitly request
that the core carry the higher order pools.

Reported-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Tested-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2013-12-12 22:43:42 -08:00
Dan Williams 8e5ee258d9 dma: fix build warnings in txx9
The unmap rework missed this:
drivers/dma/txx9dmac.c:409:25: warning: unused variable 'ds' [-Wunused-variable]

Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2013-12-12 22:43:41 -08:00
Dan Williams 745c00daf9 dmatest: fix build warning on mips
drivers/dma/dmatest.c:543:11: warning: passing argument 1 of 'virt_to_phys' makes pointer from integer without a cast [enabled by default]

mips expects virt_to_phys() to take a pointer.  Fix up the types accordingly.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2013-12-12 22:43:41 -08:00
Dan Williams bbc76560d4 dma: fix fsldma build warnings
drivers/dma/fsldma.c: In function 'fsldma_cleanup_descriptor':
drivers/dma/fsldma.c:860:6: warning: unused variable 'len' [-Wunused-variable]
drivers/dma/fsldma.c:859:13: warning: unused variable 'dst' [-Wunused-variable]
drivers/dma/fsldma.c:858:13: warning: unused variable 'src' [-Wunused-variable]
drivers/dma/fsldma.c:857:17: warning: unused variable 'dev' [-Wunused-variable]
- due to unmap changes

drivers/dma/fsldma.c: In function 'fsl_dma_tx_submit':
drivers/dma/fsldma.c:428:2: warning: 'cookie' may be used uninitialized in this function [-Wuninitialized]
- long standing warning

Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: Li Yang <leoli@freescale.com>
Cc: Zhang Wei <zw@zh-kernel.org>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2013-12-12 22:43:41 -08:00
Dan Williams 6aa2731ce2 dma: fix build warnings in ppc4xx
drivers/dma/ppc4xx/adma.c:1507:6: warning: unused variable 'i' [-Wunused-variable]
- due to unmap reworks

drivers/dma/ppc4xx/adma.c:3900:2: warning: format '%s' expects a matching 'char *' argument [-Wformat]
- due to memset removal

drivers/dma/ppc4xx/adma.c:538:13: warning: 'ppc440spe_desc_init_memset' defined but not used [-Wunused-function]
- due to memset removal

Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2013-12-12 22:43:41 -08:00
Olof Johansson d7fb0300fe dmaengine: at_hdmac: remove unused function
commit 54f8d501e8 ('dmaengine: remove DMA unmap from drivers')
refactored some code which resulted in an unused function in the at_hdmac
driver:

drivers/dma/at_hdmac_regs.h:350:23: warning: 'chan2parent' defined but
    not used [-Wunused-function]

Fixes: 54f8d501e8 ('dmaengine: remove DMA unmap from drivers')
Signed-off-by: Olof Johansson <olof@lixom.net>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Vinod Koul <vinod.koul@Intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2013-12-12 22:43:41 -08:00
Jason Cooper f984841bc0 dma: mv_xor: remove mv_desc_get_dest_addr()
The following commit:

  54f8d501e8 dmaengine: remove DMA unmap from drivers

removed the last caller to mv_desc_get_dest_addr(), creating the
warning:

  drivers/dma/mv_xor.c:57:12: warning: mv_desc_get_dest_addr defined
  but not used [-Wunused-function]

Remove it.

Signed-off-by: Jason Cooper <jason@lakedaemon.net>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2013-12-12 22:43:40 -08:00
Benjamin Herrenschmidt 803c2d2f84 powerpc/powernv: Fix OPAL LPC access in Little Endian
We are passing pointers to the firmware for reads, we need to properly
convert the result as OPAL is always BE.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-12-13 15:55:15 +11:00
Anton Blanchard 01a9dbccbd powerpc/powernv: Fix endian issue in opal_xscom_read
opal_xscom_read uses a pointer to return the data so we need
to byteswap it on LE builds.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-12-13 15:53:59 +11:00
Anton Blanchard a29e30efa3 powerpc: Fix endian issues in crash dump code
A couple more device tree properties that need byte swapping.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-12-13 15:48:39 +11:00
Anton Blanchard 8d15315537 powerpc/pseries: Fix endian issues in MSI code
The MSI code is miscalculating quotas in little endian mode.
Add required byteswaps to fix this.

Before we claimed a quota of 65536, after the patch we
see the correct value of 256.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-12-13 15:48:38 +11:00
Anton Blanchard 5091f0c969 powerpc/pseries: Fix PCIE link speed endian issue
We need to byteswap ibm,pcie-link-speed-stats.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-12-13 15:48:37 +11:00
Anton Blanchard 9fa2984d1b powerpc/pseries: Fix endian issues in nvram code
The NVRAM code has a number of endian issues. I noticed a very
confused error log count:

RTAS: 100663330 -------- RTAS event begin --------

100663330 == 0x06000022. 0x6 LE error logs and 0x22 BE error logs.

The pstore code has similar issues - if we write an oops in one
endian and attempt to read it in another we get junk.

Make both of these formats big endian, and byteswap as required.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-12-13 15:48:36 +11:00
Anton Blanchard ca5de4e652 powerpc/pseries: Fix endian issues in /proc/ppc64/lparcfg
Some obvious issues:

cat /proc/ppc64/lparcfg
...
partition_id=16777216
...
partition_potential_processors=268435456

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-12-13 15:48:35 +11:00
Anton Blanchard f8a1883a83 powerpc: Fix topology core_id endian issue on LE builds
cpu_to_core_id() is missing a byteswap:

cat /sys/devices/system/cpu/cpu63/topology/core_id
201326592

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-12-13 15:48:34 +11:00
Anton Blanchard 01666c8ee2 powerpc: Fix endian issue in setup-common.c
During on LE boot we see:

    Partition configured for 1073741824 cpus, operating system maximum is 2048.

Clearly missing a byteswap here.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-12-13 15:48:34 +11:00
Ulrich Weigand 36aa1b180e powerpc: PTRACE_PEEKUSR always returns FPR0
There is a bug in using ptrace to access FPRs via PTRACE_PEEKUSR /
PTRACE_POKEUSR. In effect, trying to access any of the FPRs always
really accesses FPR0, which does seriously break debugging :-)

The problem seems to have been introduced by commit 3ad26e5c44
(Merge branch 'for-kvm' into next).

[ It is indeed a merge conflict between Paul's FPU/VSX state rework
and my LE patches - Anton ]

Signed-off-by: Ulrich Weigand <Ulrich.Weigand@de.ibm.com>
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-12-13 15:48:33 +11:00
Ilia Mirkin 0f58411d4f drm: don't double-free on driver load error
All instances of drm_dev_register are followed by drm_dev_free on
failure. Don't free dev->control/render/primary on failure, as they will
be freed by drm_dev_free since commit 8f6599da8e (drm: delay minor
destruction to drm_dev_free()). Instead unplug them.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reported-and-tested-by: Bruno Prémont <bonbons@linux-vserver.org>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-12-13 13:03:50 +10:00
James Morris d93aca6050 Merge branch 'master' of git://git.infradead.org/users/pcmoore/selinux_fixes into for-linus 2013-12-13 13:27:55 +11:00
Linus Torvalds 8d2763770c Merge branch 'akpm' (fixes from Andrew)
Merge patches from Andrew Morton:
  "13 fixes"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
  mm: memcg: do not allow task about to OOM kill to bypass the limit
  mm: memcg: fix race condition between memcg teardown and swapin
  thp: move preallocated PTE page table on move_huge_pmd()
  mfd/rtc: s5m: fix register updating by adding regmap for RTC
  rtc: s5m: enable IRQ wake during suspend
  rtc: s5m: limit endless loop waiting for register update
  rtc: s5m: fix unsuccesful IRQ request during probe
  drivers/rtc/rtc-s5m.c: fix info->rtc assignment
  include/linux/kernel.h: make might_fault() a nop for !MMU
  drivers/rtc/rtc-at91rm9200.c: correct alarm over day/month wrap
  procfs: also fix proc_reg_get_unmapped_area() for !MMU case
  mm: memcg: do not declare OOM from __GFP_NOFAIL allocations
  include/linux/hugetlb.h: make isolate_huge_page() an inline
2013-12-12 18:22:10 -08:00
Johannes Weiner 1f14c1ac19 mm: memcg: do not allow task about to OOM kill to bypass the limit
Commit 4942642080 ("mm: memcg: handle non-error OOM situations more
gracefully") allowed tasks that already entered a memcg OOM condition to
bypass the memcg limit on subsequent allocation attempts hoping this
would expedite finishing the page fault and executing the kill.

David Rientjes is worried that this breaks memcg isolation guarantees
and since there is no evidence that the bypass actually speeds up fault
processing just change it so that these subsequent charge attempts fail
outright.  The notable exception being __GFP_NOFAIL charges which are
required to bypass the limit regardless.

Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Reported-by: David Rientjes <rientjes@google.com>
Acked-by: Michal Hocko <mhocko@suse.cz>
Acked-bt: David Rientjes <rientjes@google.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-12-12 18:19:26 -08:00
Johannes Weiner 96f1c58d85 mm: memcg: fix race condition between memcg teardown and swapin
There is a race condition between a memcg being torn down and a swapin
triggered from a different memcg of a page that was recorded to belong
to the exiting memcg on swapout (with CONFIG_MEMCG_SWAP extension).  The
result is unreclaimable pages pointing to dead memcgs, which can lead to
anything from endless loops in later memcg teardown (the page is charged
to all hierarchical parents but is not on any LRU list) or crashes from
following the dangling memcg pointer.

Memcgs with tasks in them can not be torn down and usually charges don't
show up in memcgs without tasks.  Swapin with the CONFIG_MEMCG_SWAP
extension is the notable exception because it charges the cgroup that
was recorded as owner during swapout, which may be empty and in the
process of being torn down when a task in another memcg triggers the
swapin:

  teardown:                 swapin:

                            lookup_swap_cgroup_id()
                            rcu_read_lock()
                            mem_cgroup_lookup()
                            css_tryget()
                            rcu_read_unlock()
  disable css_tryget()
  call_rcu()
    offline_css()
      reparent_charges()
                            res_counter_charge() (hierarchical!)
                            css_put()
                              css_free()
                            pc->mem_cgroup = dead memcg
                            add page to dead lru

Add a final reparenting step into css_free() to make sure any such raced
charges are moved out of the memcg before it's finally freed.

In the longer term it would be cleaner to have the css_tryget() and the
res_counter charge under the same RCU lock section so that the charge
reparenting is deferred until the last charge whose tryget succeeded is
visible.  But this will require more invasive changes that will be
harder to evaluate and backport into stable, so better defer them to a
separate change set.

Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Michal Hocko <mhocko@suse.cz>
Cc: David Rientjes <rientjes@google.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-12-12 18:19:26 -08:00
Kirill A. Shutemov 3592806cfa thp: move preallocated PTE page table on move_huge_pmd()
Andrey Wagin reported crash on VM_BUG_ON() in pgtable_pmd_page_dtor() with
fallowing backtrace:

  free_pgd_range+0x2bf/0x410
  free_pgtables+0xce/0x120
  unmap_region+0xe0/0x120
  do_munmap+0x249/0x360
  move_vma+0x144/0x270
  SyS_mremap+0x3b9/0x510
  system_call_fastpath+0x16/0x1b

The crash can be reproduce with this test case:

  #define _GNU_SOURCE
  #include <sys/mman.h>
  #include <stdio.h>
  #include <unistd.h>

  #define MB (1024 * 1024UL)
  #define GB (1024 * MB)

  int main(int argc, char **argv)
  {
	char *p;
	int i;

	p = mmap((void *) GB, 10 * MB, PROT_READ | PROT_WRITE,
			MAP_PRIVATE | MAP_ANONYMOUS | MAP_FIXED, -1, 0);
	for (i = 0; i < 10 * MB; i += 4096)
		p[i] = 1;
	mremap(p, 10 * MB, 10 * MB, MREMAP_FIXED | MREMAP_MAYMOVE, 2 * GB);
	return 0;
  }

Due to split PMD lock, we now store preallocated PTE tables for THP
pages per-PMD table.  It means we need to move them to other PMD table
if huge PMD moved there.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Reported-by: Andrey Vagin <avagin@openvz.org>
Tested-by: Andrey Vagin <avagin@openvz.org>
Reviewed-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-12-12 18:19:26 -08:00
Krzysztof Kozlowski 3e1e4a5f3a mfd/rtc: s5m: fix register updating by adding regmap for RTC
Rename old regmap field of "struct sec_pmic_dev" to "regmap_pmic" and
add new regmap for RTC.

On S5M8767A registers were not properly updated and read due to usage of
the same regmap as the PMIC.  This could be observed in various hangs,
e.g.  in infinite loop during waiting for UDR field change.

On this chip family the RTC has different I2C address than PMIC so
additional regmap is needed.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Mark Brown <broonie@linaro.org>
Acked-by: Sangbeom Kim <sbkim73@samsung.com>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Cc: Lee Jones <lee.jones@linaro.org>
Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-12-12 18:19:26 -08:00
Krzysztof Kozlowski 222ead7fd8 rtc: s5m: enable IRQ wake during suspend
Add PM suspend/resume ops to rtc-s5m driver and enable IRQ wake during
suspend so the RTC would act like a wake up source.  This allows waking
up from suspend to RAM on RTC alarm interrupt.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Mark Brown <broonie@linaro.org>
Acked-by: Sangbeom Kim <sbkim73@samsung.com>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Cc: Lee Jones <lee.jones@linaro.org>
Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-12-12 18:19:26 -08:00
Krzysztof Kozlowski d73238d4a6 rtc: s5m: limit endless loop waiting for register update
After setting alarm or time the driver is waiting for UDR register to be
cleared indicating that registers data have been transferred.

Limit the endless loop to only 5 retries.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Mark Brown <broonie@linaro.org>
Acked-by: Sangbeom Kim <sbkim73@samsung.com>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Cc: Lee Jones <lee.jones@linaro.org>
Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-12-12 18:19:26 -08:00
Krzysztof Kozlowski 7b003be826 rtc: s5m: fix unsuccesful IRQ request during probe
Probe failed for rtc-s5m:

	s5m-rtc s5m-rtc: Failed to request alarm IRQ: 12: -22
	s5m-rtc: probe of s5m-rtc failed with error -22

Fix rtc-s5m interrupt request by using regmap_irq_get_virq() for mapping
the IRQ.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Mark Brown <broonie@linaro.org>
Acked-by: Sangbeom Kim <sbkim73@samsung.com>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Cc: Lee Jones <lee.jones@linaro.org>
Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-12-12 18:19:26 -08:00
Geert Uytterhoeven 5ccb7d718e drivers/rtc/rtc-s5m.c: fix info->rtc assignment
Fix this warning:

  drivers/rtc/rtc-s5m.c: In function `s5m_rtc_probe':
  drivers/rtc/rtc-s5m.c:545: warning: assignment from incompatible pointer type

struct s5m_rtc_info.rtc has type "struct regmap *", while
struct sec_pmic_dev.rtc has type "struct i2c_client *".

Probably the author wanted to assign "struct sec_pmic_dev.regmap", which
has the correct type.

Also, as "rtc" doesn't make much sense as a name for a regmap, rename it
to "regmap".

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Sangbeom Kim <sbkim73@samsung.com>
Cc: Sachin Kamat <sachin.kamat@linaro.org>
Tested-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-12-12 18:19:26 -08:00
Axel Lin 386e79066f include/linux/kernel.h: make might_fault() a nop for !MMU
The machine cannot fault if !MUU, so make might_fault() a nop for !MMU.

This fixes below build error if
!CONFIG_MMU && (CONFIG_PROVE_LOCKING=y || CONFIG_DEBUG_ATOMIC_SLEEP=y):

  arch/arm/kernel/built-in.o: In function `arch_ptrace':
  arch/arm/kernel/ptrace.c:852: undefined reference to `might_fault'
  arch/arm/kernel/built-in.o: In function `restore_sigframe':
  arch/arm/kernel/signal.c:173: undefined reference to `might_fault'
  ...
  arch/arm/kernel/built-in.o:arch/arm/kernel/signal.c:177: more undefined references to `might_fault' follow
  make: *** [vmlinux] Error 1

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-12-12 18:19:26 -08:00
Linus Pizunski eb3c227289 drivers/rtc/rtc-at91rm9200.c: correct alarm over day/month wrap
Update month and day of month to the alarm month/day instead of current
day/month when setting the RTC alarm mask.

Signed-off-by: Linus Pizunski <linus@narrativeteam.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-12-12 18:19:26 -08:00
Jan Beulich ae5758a1a7 procfs: also fix proc_reg_get_unmapped_area() for !MMU case
Commit fad1a86e25 ("procfs: call default get_unmapped_area on
MMU-present architectures"), as its title says, took care of only the
MMU case, leaving the !MMU side still in the regressed state (returning
-EIO in all cases where pde->proc_fops->get_unmapped_area is NULL).

From the fad1a86e25 changelog:

 "Commit c4fe244857 ("sparc: fix PCI device proc file mmap(2)") added
  proc_reg_get_unmapped_area in proc_reg_file_ops and
  proc_reg_file_ops_no_compat, by which now mmap always returns EIO if
  get_unmapped_area method is not defined for the target procfs file, which
  causes regression of mmap on /proc/vmcore.

  To address this issue, like get_unmapped_area(), call default
  current->mm->get_unmapped_area on MMU-present architectures if
  pde->proc_fops->get_unmapped_area, i.e.  the one in actual file operation
  in the procfs file, is not defined"

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Cc: HATAYAMA Daisuke <d.hatayama@jp.fujitsu.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: <stable@vger.kernel.org>	[3.12.x]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-12-12 18:19:26 -08:00
Johannes Weiner a0d8b00a33 mm: memcg: do not declare OOM from __GFP_NOFAIL allocations
Commit 84235de394 ("fs: buffer: move allocation failure loop into the
allocator") started recognizing __GFP_NOFAIL in memory cgroups but
forgot to disable the OOM killer.

Any task that does not fail allocation will also not enter the OOM
completion path.  So don't declare an OOM state in this case or it'll be
leaked and the task be able to bypass the limit until the next
userspace-triggered page fault cleans up the OOM state.

Reported-by: William Dauchy <wdauchy@gmail.com>
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Michal Hocko <mhocko@suse.cz>
Cc: David Rientjes <rientjes@google.com>
Cc: <stable@vger.kernel.org>	[3.12.x]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-12-12 18:19:26 -08:00
Naoya Horiguchi f40386a4e9 include/linux/hugetlb.h: make isolate_huge_page() an inline
With CONFIG_HUGETLBFS=n:

  mm/migrate.c: In function `do_move_page_to_node_array':
  include/linux/hugetlb.h:140:33: warning: statement with no effect [-Wunused-value]
   #define isolate_huge_page(p, l) false
                                   ^
  mm/migrate.c:1170:4: note: in expansion of macro `isolate_huge_page'
      isolate_huge_page(page, &pagelist);

Reported-by: Borislav Petkov <bp@alien8.de>
Tested-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-12-12 18:19:25 -08:00
Dave Airlie 0ca9fff744 Merge branch 'vmwgfx-fixes-3.13' of git://people.freedesktop.org/~thomash/linux into drm-fixes
Part of a driver stack fix that fixes surface overcommiting on single execbuf calls.
* 'vmwgfx-fixes-3.13' of git://people.freedesktop.org/~thomash/linux:
  drm/vmwgfx: Add max surface memory param
2013-12-13 12:03:52 +10:00
Dave Airlie 7fc61f8458 Merge branch 'drm-fixes-3.13' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
Additional radeon fixes for 3.13.  A couple of regression fixes,
a fix for a long standing bug on certain rs690 boards with sideport, and
a buffer corruption fix for CIK parts.
* 'drm-fixes-3.13' of git://people.freedesktop.org/~agd5f/linux:
  Revert "drm/radeon: Implement radeon_pci_shutdown"
  drm/radeon: add missing display tiling setup for oland
  drm/radeon: fix typo in cik_copy_dma
  drm/radeon/cik: plug in missing blit callback
  drm/radeon/dpm: Fix hwmon crash
  drm/radeon: Fix sideport problems on certain RS690 boards
2013-12-13 12:02:42 +10:00
Linus Torvalds 54fb723cc4 Four security fixes for KVM on x86. Thanks to Andrew Honig and Lars Bull
from Google for reporting them.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull kvm fixes from Paolo Bonzini:
 "Four security fixes for KVM on x86.  Thanks to Andrew Honig and Lars
  Bull from Google for reporting them"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: x86: fix guest-initiated crash with x2apic (CVE-2013-6376)
  KVM: x86: Convert vapic synchronization to _cached functions (CVE-2013-6368)
  KVM: x86: Fix potential divide by 0 in lapic (CVE-2013-6367)
  KVM: Improve create VCPU parameter (CVE-2013-4587)
2013-12-12 15:46:06 -08:00
Linus Torvalds ea1e61cbb9 ARM: SoC fixes for 3.13-rc
Another week, another batch of fixes.
 
 Again, OMAP regressions due to move to DT is the bulk of the changes here,
 but this should be the last of it for 3.13. There are also a handful of
 OMAP hwmod changes (power management, reset handling) for USB on OMAP3
 that fixes some longish-standing bugs around USB resets.
 
 There are a couple of other changes that also add up line count a bit:
 One is a long-standing bug with the keyboard layout on one of the
 PXA platforms. The other is a fix for highbank that moves their
 power-off/reset button handling to be done in-kernel since relying on
 userspace to handle it was fragile and awkward.
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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Olof Johansson:
 "Another week, another batch of fixes.

  Again, OMAP regressions due to move to DT is the bulk of the changes
  here, but this should be the last of it for 3.13.  There are also a
  handful of OMAP hwmod changes (power management, reset handling) for
  USB on OMAP3 that fixes some longish-standing bugs around USB resets.

  There are a couple of other changes that also add up line count a bit:
  One is a long-standing bug with the keyboard layout on one of the PXA
  platforms.  The other is a fix for highbank that moves their
  power-off/reset button handling to be done in-kernel since relying on
  userspace to handle it was fragile and awkward"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: sun6i: dt: Fix interrupt trigger types
  ARM: sun7i: dt: Fix interrupt trigger types
  MAINTAINERS: merge IMX6 entry into IMX
  ARM: tegra: add missing break to fuse initialization code
  ARM: pxa: prevent PXA270 occasional reboot freezes
  ARM: pxa: tosa: fix keys mapping
  ARM: OMAP2+: omap_device: add fail hook for runtime_pm when bad data is detected
  ARM: OMAP2+: hwmod: Fix usage of invalid iclk / oclk when clock node is not present
  ARM: OMAP3: hwmod data: Don't prevent RESET of USB Host module
  ARM: OMAP2+: hwmod: Fix SOFTRESET logic
  ARM: OMAP4+: hwmod data: Don't prevent RESET of USB Host module
  ARM: dts: Fix booting for secure omaps
  ARM: OMAP2+: Fix the machine entry for am3517
  ARM: dts: Fix missing entries for am3517
  ARM: OMAP2+: Fix overwriting hwmod data with data from device tree
  ARM: davinci: Fix McASP mem resource names
  ARM: highbank: handle soft poweroff and reset key events
  ARM: davinci: fix number of resources passed to davinci_gpio_register()
  gpio: davinci: fix check for unbanked gpio
2013-12-12 15:45:03 -08:00
Linus Torvalds e09f67f147 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs
Pull btrfs fixes from Chris Mason:
 "This is a small collection of fixes.  It was rebased this morning, but
  I was just fixing signed-off-by tags with the wrong email"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
  Btrfs: fix access_ok() check in btrfs_ioctl_send()
  Btrfs: make sure we cleanup all reloc roots if error happens
  Btrfs: skip building backref tree for uuid and quota tree when doing balance relocation
  Btrfs: fix an oops when doing balance relocation
  Btrfs: don't miss skinny extent items on delayed ref head contention
  btrfs: call mnt_drop_write after interrupted subvol deletion
  Btrfs: don't clear the default compression type
2013-12-12 15:25:10 -08:00
Linus Torvalds c9111b4df4 Merge branch 'for-3.13' of git://linux-nfs.org/~bfields/linux
Pull nfsd reply cache bugfix from Bruce Fields:
 "One bugfix for nfsd crashes"

* 'for-3.13' of git://linux-nfs.org/~bfields/linux:
  nfsd: when reusing an existing repcache entry, unhash it first
2013-12-12 15:24:32 -08:00
Ezequiel Garcia 15b540c71c mtd: nand: pxa3xx: Use info->use_dma to release DMA resources
In commit:

  commit 62e8b85178
  Author: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
  Date:   Fri Oct 4 15:30:38 2013 -0300

  mtd: nand: pxa3xx: Allocate data buffer on detected flash size

the way the buffer is allocated was changed: the first READ_ID is issued
with a small kmalloc'ed buffer. Only once the flash page size is detected
the DMA buffers are allocated, and info->use_dma is set.

Currently, if the device detection fails, the driver checks the 'use_dma'
module parameter and tries to release unallocated DMA resources.

Fix this by checking the proper indicator of the DMA allocation, which
is 'info->use_dma'.

Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2013-12-12 15:02:04 -08:00
Ezequiel Garcia 9c59ac6161 Partially revert "mtd: nand: pxa3xx: Introduce 'marvell,armada370-nand' compatible string"
This partially reverts c0f3b8643a.

The "armada370-nand" compatible support is not complete, and it was mistake
to add it. Revert it and postpone the support until the infrastructure is
in place.

Cc: <stable@vger.kernel.org> # 3.12
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2013-12-12 15:01:30 -08:00
Paul Moore c0828e5048 selinux: process labeled IPsec TCP SYN-ACK packets properly in selinux_ip_postroute()
Due to difficulty in arriving at the proper security label for
TCP SYN-ACK packets in selinux_ip_postroute(), we need to check packets
while/before they are undergoing XFRM transforms instead of waiting
until afterwards so that we can determine the correct security label.

Reported-by: Janak Desai <Janak.Desai@gtri.gatech.edu>
Cc: stable@vger.kernel.org
Signed-off-by: Paul Moore <pmoore@redhat.com>
2013-12-12 17:21:31 -05:00
Paul Moore 817eff718d selinux: look for IPsec labels on both inbound and outbound packets
Previously selinux_skb_peerlbl_sid() would only check for labeled
IPsec security labels on inbound packets, this patch enables it to
check both inbound and outbound traffic for labeled IPsec security
labels.

Reported-by: Janak Desai <Janak.Desai@gtri.gatech.edu>
Cc: stable@vger.kernel.org
Signed-off-by: Paul Moore <pmoore@redhat.com>
2013-12-12 17:21:31 -05:00
Paul Moore 446b802437 selinux: handle TCP SYN-ACK packets correctly in selinux_ip_postroute()
In selinux_ip_postroute() we perform access checks based on the
packet's security label.  For locally generated traffic we get the
packet's security label from the associated socket; this works in all
cases except for TCP SYN-ACK packets.  In the case of SYN-ACK packet's
the correct security label is stored in the connection's request_sock,
not the server's socket.  Unfortunately, at the point in time when
selinux_ip_postroute() is called we can't query the request_sock
directly, we need to recreate the label using the same logic that
originally labeled the associated request_sock.

See the inline comments for more explanation.

Reported-by: Janak Desai <Janak.Desai@gtri.gatech.edu>
Tested-by: Janak Desai <Janak.Desai@gtri.gatech.edu>
Cc: stable@vger.kernel.org
Signed-off-by: Paul Moore <pmoore@redhat.com>
2013-12-12 17:21:31 -05:00