Commit Graph

441776 Commits

Author SHA1 Message Date
Rafael J. Wysocki d705116f27 Merge branch 'pm-cpufreq'
* pm-cpufreq:
  cpufreq: ppc-corenet-cpufreq: Fix __udivdi3 modpost error
  cpufreq: powernow-k7: Fix double invocation of cpufreq_freq_transition_begin/end
  cpufreq: powernow-k6: Fix double invocation of cpufreq_freq_transition_begin/end
  cpufreq: powernow-k6: Fix incorrect comparison with max_multipler
  cpufreq: longhaul: Fix double invocation of cpufreq_freq_transition_begin/end
2014-05-03 00:19:56 +02:00
Linus Torvalds 54366a7fd6 A few dm-thinp fixes for changes merged in 3.15-rc1.
A dm-verity fix for an immutable biovec regression that affects 3.14+.
 
 A dm-cache fix to properly quiesce when using writethrough mode (3.14+).
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Merge tag 'dm-3.15-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm

Pull device mapper fixes from Mike Snitzer:
 "A few dm-thinp fixes for changes merged in 3.15-rc1.

  A dm-verity fix for an immutable biovec regression that affects 3.14+.

  A dm-cache fix to properly quiesce when using writethrough mode (3.14+)"

* tag 'dm-3.15-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
  dm cache: fix writethrough mode quiescing in cache_map
  dm thin: use INIT_WORK_ONSTACK in noflush_work to avoid ODEBUG warning
  dm verity: fix biovecs hash calculation regression
  dm thin: fix rcu_read_lock being held in code that can sleep
  dm thin: irqsave must always be used with the pool->lock spinlock
2014-05-02 14:14:02 -07:00
Linus Torvalds 0845e11c2a Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Peter Anvin:
 "Two very small changes: one fix for the vSMP Foundation platform, and
  one to help LLVM not choke on options it doesn't understand (although
  it probably should)"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/vsmp: Fix irq routing
  x86: LLVMLinux: Wrap -mno-80387 with cc-option
2014-05-02 14:04:52 -07:00
Linus Torvalds e7e6d2a4a1 - Fix for a Haswell regression in nested virtualization, introduced during
the merge window.
 
 - A fix from Oleg to async page faults.
 
 - A bunch of small ARM changes.
 
 - A trivial patch to use the new MSI-X API introduced during the merge
 window.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM fixes from Paolo Bonzini:
 - Fix for a Haswell regression in nested virtualization, introduced
   during the merge window.
 - A fix from Oleg to async page faults.
 - A bunch of small ARM changes.
 - A trivial patch to use the new MSI-X API introduced during the merge
   window.

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: ARM: vgic: Fix the overlap check action about setting the GICD & GICC base address.
  KVM: arm/arm64: vgic: fix GICD_ICFGR register accesses
  KVM: async_pf: mm->mm_users can not pin apf->mm
  KVM: ARM: vgic: Fix sgi dispatch problem
  MAINTAINERS: co-maintainance of KVM/{arm,arm64}
  arm: KVM: fix possible misalignment of PGDs and bounce page
  KVM: x86: Check for host supported fields in shadow vmcs
  kvm: Use pci_enable_msix_exact() instead of pci_enable_msix()
  ARM: KVM: disable KVM in Kconfig on big-endian systems
2014-05-02 09:26:09 -07:00
Linus Torvalds b28e4f08d4 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fixes from Martin Schwidefsky:
 "Two bug fixes, one to fix a potential information leak in the BPF jit
  and common-io-layer fix for old firmware levels"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/bpf,jit: initialize A register if 1st insn is BPF_S_LDX_B_MSH
  s390/chsc: fix SEI usage on old FW levels
2014-05-02 09:25:32 -07:00
Linus Torvalds b7270cce7d InfiniBand/RDMA updates for 3.15-rc4:
- cxgb4 hardware driver fixes
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Merge tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband

Pull infiniband/rdma fixes from Roland Dreier:
 "cxgb4 hardware driver fixes"

* tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
  RDMA/cxgb4: Update Kconfig to include Chelsio T5 adapter
  RDMA/cxgb4: Only allow kernel db ringing for T4 devs
  RDMA/cxgb4: Force T5 connections to use TAHOE congestion control
  RDMA/cxgb4: Fix endpoint mutex deadlocks
2014-05-01 17:52:42 -07:00
Linus Torvalds b5f3c61d06 Merge branch 'parisc-3.15-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
Pull parisc fixes from Helge Deller:
 "Drop the architecture-specifc value for_STK_LIM_MAX to fix stack
  related problems with GNU make"

* 'parisc-3.15-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
  parisc: Use generic uapi/asm/resource.h file
  parisc: remove _STK_LIM_MAX override
2014-05-01 15:54:44 -07:00
Mike Snitzer 131cd131a9 dm cache: fix writethrough mode quiescing in cache_map
Commit 2ee57d5873 ("dm cache: add passthrough mode") inadvertently
removed the deferred set reference that was taken in cache_map()'s
writethrough mode support.  Restore taking this reference.

This issue was found with code inspection.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Acked-by: Joe Thornber <ejt@redhat.com>
Cc: stable@vger.kernel.org # 3.13+
2014-05-01 16:14:24 -04:00
Linus Torvalds ba6728f596 Pin control fixes for v3.15:
- Signedness bug in the TB10x
 
 - GPIO inversion fix for the AS3722
 
 - Clear pending pin interrups enabled in the bootloader in the
   pinctrl-single driver
 
 - Minor pin definition fixes for the PFC/Renesas driver
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Merge tag 'pinctrl-v3.15-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pin control fixes from Linus Walleij:
 "Here is a small set of pin control fixes for the v3.15 series.  All
  are individual driver fixes and quite self-contained.  One of them
  tagged for stable.

   - Signedness bug in the TB10x

   - GPIO inversion fix for the AS3722

   - Clear pending pin interrups enabled in the bootloader in the
     pinctrl-single driver

   - Minor pin definition fixes for the PFC/Renesas driver"

* tag 'pinctrl-v3.15-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
  sh-pfc: r8a7791: Fix definition of MOD_SEL3
  sh-pfc: r8a7790: Fix definition of IPSR5
  pinctrl: single: Clear pin interrupts enabled by bootloader
  pinctrl: as3722: fix handling of GPIO invert bit
  pinctrl/TB10x: Fix signedness bug
2014-05-01 11:28:03 -07:00
Linus Torvalds 60b88f3941 Fixed one missing place for the new taint flag, and remove a warning
giving only false positives (now we finally figured out why).
 
 Cheers,
 Rusty.
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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux

Pull module fixes from Rusty Russell:
 "Fixed one missing place for the new taint flag, and remove a warning
  giving only false positives (now we finally figured out why)"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux:
  module: remove warning about waiting module removal.
  Fix: tracing: use 'E' instead of 'X' for unsigned module taint flag
2014-05-01 10:35:01 -07:00
Helge Deller 8a415e534d parisc: Use generic uapi/asm/resource.h file
Signed-off-by: Helge Deller <deller@gmx.de>
2014-05-01 19:29:26 +02:00
John David Anglin e0d8898d76 parisc: remove _STK_LIM_MAX override
There are only a couple of architectures that override _STK_LIM_MAX to
a non-infinity value. This changes the stack allocation semantics in
subtle ways. For example, GNU make changes its stack allocation to the
hard maximum defined by _STK_LIM_MAX. As a results, threads executed
by processes running under make are allocated a stack size of
_STK_LIM_MAX rather than a sensible default value. This causes various
thread stress tests to fail when they can't muster more than about 50
threads.

The attached change implements the default behavior used by the
majority of architectures.

Signed-off-by: John David Anglin <dave.anglin@bell.net>
Reviewed-by: Carlos O'Donell <carlos@systemhalted.org>
Cc: stable@vger.kernel.org # 3.14
Signed-off-by: Helge Deller <deller@gmx.de>
2014-05-01 19:28:44 +02:00
Vineet Gupta b7e1bd9648 Hexagon: Delete stale barrier.h
Commit 93ea02bb84 ("arch: Clean up asm/barrier.h implementations")
wired generic barrier.h for hexagon, but failed to delete the existing
file.

Cc: Richard Kuo <rkuo@codeaurora.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Compile-tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-05-01 10:09:47 -07:00
Linus Torvalds 2519d3b0f3 Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar:
 "Mostly tooling fixes, plus an Intel RAPL PMU driver fix"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf tests x86: Fix stack map lookup in dwarf unwind test
  perf x86: Fix perf to use non-executable stack, again
  perf tools: Remove extra '/' character in events file path
  perf machine: Search for modules in %s/lib/modules/%s
  perf tests: Add static build make test
  perf tools: Fix bfd dependency libraries detection
  perf tools: Use LDFLAGS instead of ALL_LDFLAGS
  perf/x86: Fix RAPL rdmsrl_safe() usage
  tools lib traceevent: Fix memory leak in pretty_print()
  tools lib traceevent: Fix backward compatibility macros for pevent filter enums
  perf tools: Disable libdw unwind for all but x86 arch
  perf tests x86: Fix memory leak in sample_ustack()
2014-05-01 09:50:58 -07:00
Linus Torvalds f496136686 Fix Tjmax detection in coretemp driver
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Merge tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon fix from Guenter Roeck:
 "Fix Tjmax detection in coretemp driver"

* tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  Revert "hwmon: (coretemp) Refine TjMax detection"
2014-05-01 08:59:49 -07:00
H. Peter Anvin 789ce9dca8 word-at-a-time: simplify big-endian zero_bytemask macro
This is simpler and cleaner.  Depending on architecture, a smart
compiler may or may not generate the same code.

Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-05-01 08:57:44 -07:00
Linus Torvalds 98794f9321 Merge git://git.kvack.org/~bcrl/aio-fixes
Pull aio fixes from Ben LaHaise:
 "The first change from Anatol fixes a regression where io_destroy() no
  longer waits for outstanding aios to complete.  The second corrects a
  memory leak in an error path for vectored aio operations.

  Both of these bug fixes should be queued up for stable as well"

* git://git.kvack.org/~bcrl/aio-fixes:
  aio: fix potential leak in aio_run_iocb().
  aio: block io_destroy() until all context requests are completed
2014-05-01 08:54:03 -07:00
Leon Yu 754320d6e1 aio: fix potential leak in aio_run_iocb().
iovec should be reclaimed whenever caller of rw_copy_check_uvector() returns,
but it doesn't hold when failure happens right after aio_setup_vectored_rw().

Fix that in a such way to avoid hairy goto.

Signed-off-by: Leon Yu <chianglungyu@gmail.com>
Signed-off-by: Benjamin LaHaise <bcrl@kvack.org>
Cc: stable@vger.kernel.org
2014-05-01 08:37:43 -04:00
Guenter Roeck c0940e95f7 Revert "hwmon: (coretemp) Refine TjMax detection"
This reverts commit 9fb6c9c73b.

Tjmax on some Intel CPUs is below 85 degrees C. One known example is
L5630 with Tjmax of 71 degrees C. There are other Xeon processors with
Tjmax of 70 or 80 degrees C. Also, the Intel IA32 System Programming
document states that the temperature target is in bits 23:16 of MSR 0x1a2
(MSR_TEMPERATURE_TARGET), which is 8 bits, not 7.

So even if turbostat uses similar checks to validate Tjmax, there is no
evidence that the checks are actually required. On the contrary, the
checks are known to cause problems and therefore need to be removed.

This fixes https://bugzilla.kernel.org/show_bug.cgi?id=75071.

Fixes: 9fb6c9c hwmon: (coretemp) Refine TjMax detection
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Cc: stable@vger.kernel.org # 3.14+
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-05-01 04:07:52 -07:00
Ingo Molnar 399f0c220a perf/urgent fixes:
. Fix perf to use non-executable stack, again (Mathias Krause)
 
 . Remove extra '/' character in events file path (Xia Kaixu)
 
 . Search for modules in %s/lib/modules/%s (Richard Yao)
 
 . Build related fixies plus static build test (Jiri Olsa)
 
 . Fix stack map lookup in dwarf unwind test (Jiri Olsa)
 
 Signed-off-by: Jiri Olsa <jolsa@kernel.org>
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Merge tag 'perf-urgent-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf into perf/urgent

Pull perf/urgent fixes from Jiri Olsa:

  * Fix perf to use non-executable stack, again (Mathias Krause)

  * Remove extra '/' character in events file path (Xia Kaixu)

  * Search for modules in %s/lib/modules/%s (Richard Yao)

  * Build related fixies plus static build test (Jiri Olsa)

  * Fix stack map lookup in dwarf unwind test (Jiri Olsa)

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2014-05-01 08:22:08 +02:00
Lan Tianyu 4985c32ee4 ACPI / processor: Fix failure of loading acpi-cpufreq driver
According commit d640113fe (ACPI: processor: fix acpi_get_cpuid for UP
processor),  BIOS may not provide _MAT or MADT tables and acpi_get_apicid()
always returns -1. For these cases, original code will pass apic_id with
vaule of -1 to acpi_map_cpuid() and it will check the acpi_id. If acpi_id
is equal to zero, ignores apic_id and return zero for CPU0.

Commit b981513 (ACPI / scan: bail out early if failed to parse APIC
ID for CPU) changed the behavior. Return ENODEV when find apic_id is
less than zero after calling acpi_get_apicid(). This causes acpi-cpufreq
driver fails to be loaded on some machines. This patch is to fix it.

Fixes: b981513f80 (ACPI / scan: bail out early if failed to parse APIC ID for CPU)
References: https://bugzilla.kernel.org/show_bug.cgi?id=73781
Cc: 3.14+ <stable@vger.kernel.org> # 3.14+
Reported-and-tested-by: KATO Hiroshi <katoh@mikage.ne.jp>
Reported-and-tested-by: Stuart Foster <smf.linux@ntlworld.com>
Signed-off-by: Lan Tianyu <tianyu.lan@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-05-01 01:46:43 +02:00
Rafael J. Wysocki a8d2239630 PNP / ACPI: Do not return errors if _DIS or _SRS are not present
The ACPI PNP subsystem returns errors from pnpacpi_set_resources()
and pnpacpi_disable_resources() if the _SRS or _DIS methods are not
present, respectively, but it should not do that, because those
methods are optional.  For this reason, modify pnpacpi_set_resources()
and pnpacpi_disable_resources(), respectively, to ignore missing _SRS
or _DIS.

This problem has been uncovered by commit 202317a573 (ACPI / scan:
Add acpi_device objects for all device nodes in the namespace) and
manifested itself by causing serial port suspend to fail on some
systems.

Fixes: 202317a573 (ACPI / scan: Add acpi_device objects for all device nodes in the namespace)
References: https://bugzilla.kernel.org/show_bug.cgi?id=74371
Reported-by: wxg4net <wxg4net@gmail.com>
Reported-and-tested-by: <nonproffessional@gmail.com>
Cc: 3.14+ <stable@vger.kernel.org> # 3.14+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-04-30 22:36:33 +02:00
Paolo Bonzini a5a5aef451 First round of KVM/ARM Fixes for 3.15
Includes vgic fixes, a possible kernel corruption bug due to
 misalignment of pages and disabling of KVM in KConfig on big-endian
 systems, because the last one breaks the build.
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Merge tag 'kvm-arm-for-3.15-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into kvm-master

First round of KVM/ARM Fixes for 3.15

Includes vgic fixes, a possible kernel corruption bug due to
misalignment of pages and disabling of KVM in KConfig on big-endian
systems, because the last one breaks the build.
2014-04-30 21:25:09 +02:00
Jeff Layton 8c836fa85b MAINTAINERS: email address change for Jeff Layton
jlayton@redhat.com -> jlayton@poochiereds.net

Signed-off-by: Jeff Layton <jlayton@poochiereds.net>
2014-04-30 13:28:17 -04:00
Vineet Gupta 8aa9e85ada ARC: !PREEMPT: Ensure Return to kernel mode is IRQ safe
There was a very small race window where resume to kernel mode from a
Exception Path (or pure kernel mode which is true for most of ARC
exceptions anyways), was not disabling interrupts in restore_regs,
clobbering the exception regs

Anton found the culprit call flow (after many sleepless nights)

| 1. we got a Trap from user land
| 2. started to service it.
| 3. While doing some stuff on user-land memory (I think it is padzero()),
|     we got a DataTlbMiss
| 4. On return from it we are taking "resume_kernel_mode" path
| 5. NEED_RESHED is not set, so we go to "return from exception" path in
|     restore regs.
| 6. there seems to be IRQ happening

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Cc: <stable@vger.kernel.org>   #3.10, 3.12, 3.13, 3.14
Cc: Anton Kolesov <Anton.Kolesov@synopsys.com>
Cc: Francois Bedard <Francois.Bedard@synopsys.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-04-30 08:21:43 -07:00
Linus Torvalds 71dc96e39d sound fixes for 3.15-rc4
A few collections of small eggs that have been gathered during
 the Easter holidays.  Mostly small ASoC fixes, with a HD-audio
 quirk and a workaround for Nvidia controller.
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Merge tag 'sound-3.15-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "A few collections of small eggs that have been gathered during the
  Easter holidays.  Mostly small ASoC fixes, with a HD-audio quirk and a
  workaround for Nvidia controller"

* tag 'sound-3.15-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda - Suppress CORBRP clear on Nvidia controller chips
  ALSA: hda - add headset mic detect quirk for a Dell laptop
  ASoC: jz4740: Remove Makefile entry for removed file
  ASoC: Intel: Fix audio crash due to negative address offset
  ASoC: dapm: Fix widget double free with auto-disable DAPM kcontrol
  ASoC: Intel: Fix incorrect sizeof() in sst_hsw_stream_get_volume()
  ASoC: Intel: some incorrect sizeof() usages
  ASoC: cs42l73: Convert to use devm_gpio_request_one
  ASoC: cs42l52: Convert to use devm_gpio_request_one
  ASoC: tlv320aic31xx: document that the regulators are mandatory
  ASoC: fsl_spdif: Fix wrong OFFSET of STC_SYSCLK_DIV
  ASoC: alc5623: Fix regmap endianness
  ASoC: tlv320aic3x: fix shared reset pin for DT
  ASoC: rsnd: fix clock prepare/unprepare
2014-04-30 08:15:59 -07:00
Jiri Olsa 9a12672816 perf tests x86: Fix stack map lookup in dwarf unwind test
Previous commit 'perf x86: Fix perf to use non-executable stack, again'
moved stack map into MAP__VARIABLE map type again. Fixing the dwarf
unwind test stack map lookup appropriately.

Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Jean Pihet <jean.pihet@linaro.org>
Link: http://lkml.kernel.org/n/tip-ttzyhbe4zls24z7ednkmhvxl@git.kernel.org
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
2014-04-30 17:02:31 +02:00
Mathias Krause 6392b4ebdc perf x86: Fix perf to use non-executable stack, again
arch/x86/tests/regs_load.S is missing the linker note about the stack
requirements, therefore making the linker fall back to an executable
stack. As this object gets linked against the final perf binary, it'll
needlessly end up with an executable stack. Fix this by adding the
appropriate linker note.

Also add a global linker flag to prevent future regressions, as
suggested by Jiri. This way perf won't get an executable stack even if
we fail to add the .GNU-stack linker note to future assembler files.
Though, doing so might create regressions the other way around, when
(statically) linking against libraries needing an executable stack.
But, apparently, regressing in that direction is wanted as it is an
indicator of poor code quality -- or just missing linker notes.

Fixes: 3c8b06f981 ("perf tests x86: Introduce perf_regs_load function")

Signed-off-by: Mathias Krause <minipli@googlemail.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1398617466-22749-1-git-send-email-minipli@googlemail.com
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
2014-04-30 17:02:30 +02:00
Xia Kaixu 603940b6b8 perf tools: Remove extra '/' character in events file path
The array debugfs_known_mountpoints[] will cause extra '/'
character output.
Remove it.

pre:
$ perf probe -l
/sys/kernel/debug//tracing/uprobe_events file does not exist -
please rebuild kernel with CONFIG_UPROBE_EVENTS.

post:
$ perf probe -l
/sys/kernel/debug/tracing/uprobe_events file does not exist -
please rebuild kernel with CONFIG_UPROBE_EVENTS.

Signed-off-by: Xia Kaixu <xiakaixu@huawei.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/535B6660.2060001@huawei.com
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
2014-04-30 17:02:24 +02:00
Richard Yao 61d4290cc1 perf machine: Search for modules in %s/lib/modules/%s
Modules installed outside of the kernel's build system should go into
"%s/lib/modules/%s/extra", but at present, perf will only look at them
when they are in "%s/lib/modules/%s/kernel". Lets encourage good
citizenship by relaxing this requirement to "%s/lib/modules/%s". This
way open source modules that are out-of-tree have no incentive to start
populating a directory reserved for in-kernel modules and I can stop
hex-editing my system's perf binary when profiling OSS out-of-tree
modules.

Feedback from Namhyung Kim correctly revealed that the hex-edits that I
had been doing meant that perf was also traversing the build and source
symlinks in %s/lib/modules/%s. That is undesireable, so we explicitly
exclude them from traversal with a minor tweak to the traversal routine.

Signed-off-by: Richard Yao <ryao@gentoo.org>
Acked-by: Namhyung kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/1398532675-13684-1-git-send-email-ryao@gentoo.org
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
2014-04-30 16:49:29 +02:00
Jiri Olsa 611ec12716 perf tests: Add static build make test
Adding test for building static perf build into the automated
suite. Also available via following commands:

  $ make -f tests/make make_static
  - make_static: cd . && make -f Makefile DESTDIR=/tmp/tmp.7u5MlB4njo LDFLAGS=-static
  $ make -f tests/make make_static_O
  - make_static_O: cd . && make -f Makefile O=/tmp/tmp.Ay6r3wEmtX DESTDIR=/tmp/tmp.vK0KQwO0Vi LDFLAGS=-static

Acked-by: David Ahern <dsahern@gmail.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1398760413-7574-1-git-send-email-jolsa@kernel.org
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
2014-04-30 16:48:57 +02:00
Jiri Olsa 2cf9040714 perf tools: Fix bfd dependency libraries detection
There's false assumption in the library detection code
assuming -liberty and -lz are always present once bfd
is detected. The fails on Ubuntu (14.04) as reported
by Ingo.

Forcing the bdf dependency libraries detection any
time bfd library is detected.

Reported-by: Ingo Molnar <mingo@kernel.org>
Tested-by: Ingo Molnar <mingo@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1398676935-6615-1-git-send-email-jolsa@kernel.org
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
2014-04-30 16:48:50 +02:00
Jiri Olsa e27a08f53d perf tools: Use LDFLAGS instead of ALL_LDFLAGS
We no longer use ALL_LDFLAGS, Replacing with LDFLAGS.

Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1398675770-3109-1-git-send-email-jolsa@kernel.org
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
2014-04-30 16:48:39 +02:00
Jiri Bohac 98a01e779f timer: Prevent overflow in apply_slack
On architectures with sizeof(int) < sizeof (long), the
computation of mask inside apply_slack() can be undefined if the
computed bit is > 32.

E.g. with: expires = 0xffffe6f5 and slack = 25, we get:

expires_limit = 0x20000000e
bit = 33
mask = (1 << 33) - 1  /* undefined */

On x86, mask becomes 1 and and the slack is not applied properly.
On s390, mask is -1, expires is set to 0 and the timer fires immediately.

Use 1UL << bit to solve that issue.

Suggested-by: Deborah Townsend <dstownse@us.ibm.com>
Signed-off-by: Jiri Bohac <jbohac@suse.cz>
Cc: stable@vger.kernel.org
Link: http://lkml.kernel.org/r/20140418152310.GA13654@midget.suse.cz
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2014-04-30 13:46:17 +02:00
Leon Ma 012a45e3f4 hrtimer: Prevent remote enqueue of leftmost timers
If a cpu is idle and starts an hrtimer which is not pinned on that
same cpu, the nohz code might target the timer to a different cpu.

In the case that we switch the cpu base of the timer we already have a
sanity check in place, which determines whether the timer is earlier
than the current leftmost timer on the target cpu. In that case we
enqueue the timer on the current cpu because we cannot reprogram the
clock event device on the target.

If the timers base is already the target CPU we do not have this
sanity check in place so we enqueue the timer as the leftmost timer in
the target cpus rb tree, but we cannot reprogram the clock event
device on the target cpu. So the timer expires late and subsequently
prevents the reprogramming of the target cpu clock event device until
the previously programmed event fires or a timer with an earlier
expiry time gets enqueued on the target cpu itself.

Add the same target check as we have for the switch base case and
start the timer on the current cpu if it would become the leftmost
timer on the target.

[ tglx: Rewrote subject and changelog ]

Signed-off-by: Leon Ma <xindong.ma@intel.com>
Link: http://lkml.kernel.org/r/1398847391-5994-1-git-send-email-xindong.ma@intel.com
Cc: stable@vger.kernel.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2014-04-30 12:34:51 +02:00
Stuart Hayes 6c6c0d5a1c hrtimer: Prevent all reprogramming if hang detected
If the last hrtimer interrupt detected a hang it sets hang_detected=1
and programs the clock event device with a delay to let the system
make progress.

If hang_detected == 1, we prevent reprogramming of the clock event
device in hrtimer_reprogram() but not in hrtimer_force_reprogram().

This can lead to the following situation:

hrtimer_interrupt()
   hang_detected = 1;
   program ce device to Xms from now (hang delay)

We have two timers pending:
   T1 expires 50ms from now
   T2 expires 5s from now

Now T1 gets canceled, which causes hrtimer_force_reprogram() to be
invoked, which in turn programs the clock event device to T2 (5
seconds from now).

Any hrtimer_start after that will not reprogram the hardware due to
hang_detected still being set. So we effectivly block all timers until
the T2 event fires and cleans up the hang situation.

Add a check for hang_detected to hrtimer_force_reprogram() which
prevents the reprogramming of the hang delay in the hardware
timer. The subsequent hrtimer_interrupt will resolve all outstanding
issues.

[ tglx: Rewrote subject and changelog and fixed up the comment in
  	hrtimer_force_reprogram() ]

Signed-off-by: Stuart Hayes <stuart.w.hayes@gmail.com>
Link: http://lkml.kernel.org/r/53602DC6.2060101@gmail.com
Cc: stable@vger.kernel.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2014-04-30 12:34:51 +02:00
Linus Torvalds ed8c37e158 Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
 "Smattering of fixes, i915, exynos, tegra, msm, vmwgfx.

  A bit of framebuffer reference counting fallout fixes, i915 GM45
  regression fix, DVI regression fix, vmware info leak between processes
  fix"

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  drm/exynos: use %pad for dma_addr_t
  drm/exynos: dsi: use IS_ERR() to check devm_ioremap_resource() results
  MAINTAINERS: update maintainer entry for Exynos DP driver
  drm/exynos: balance framebuffer refcount
  drm/i915: Move all ring resets before setting the HWS page
  drm/i915: Don't WARN nor handle unexpected hpd interrupts on gmch platforms
  drm/msm/mdp4: cure for the cursor blues (v2)
  drm/msm: default to XR24 rather than AR24
  drm/msm: fix memory leak
  drm/tegra: restrict plane loops to legacy planes
  drm/i915: Allow full PPGTT with param override
  drm/i915: Discard BIOS framebuffers too small to accommodate chosen mode
  drm/vmwgfx: Make sure user-space can't DMA across buffer object boundaries v2
  drm/i915: get power domain in case the BIOS enabled eDP VDD
  drm/i915: Don't check gmch state on inherited configs
  drm/i915: Allow user modes to exceed DVI 165MHz limit
2014-04-29 17:51:26 -07:00
Jingoo Han b8eade24c9 drm/exynos: use %pad for dma_addr_t
Use %pad for dma_addr_t, because a dma_addr_t type can vary
based on build options. So, it prevents possible build warnings
in printks.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Reviewed-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-04-30 09:48:54 +10:00
Jingoo Han 293d3f6a70 drm/exynos: dsi: use IS_ERR() to check devm_ioremap_resource() results
devm_ioremap_resource() returns an error pointer, not NULL. Thus,
the result should be checked with IS_ERR().

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-04-30 09:48:50 +10:00
Jingoo Han e2a75c446e MAINTAINERS: update maintainer entry for Exynos DP driver
Recently, Exynos DP driver was moved from drivers/video/exynos/
directory to drivers/gpu/drm/exynos/ directory. So, I update
and add maintainer entry for Exynos DP driver.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-04-30 09:48:44 +10:00
Andrzej Hajda 25c8b5c304 drm/exynos: balance framebuffer refcount
exynos_drm_crtc_mode_set assigns primary framebuffer to plane without
taking reference. Then during framebuffer removal it is dereferenced twice,
causing oops. The patch fixes it.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-04-30 09:48:28 +10:00
Dave Airlie d8af20bcae Merge branch 'vmwgfx-fixes-3.15' of git://people.freedesktop.org/~thomash/linux into drm-next
single security fix, cc'd stable.

* 'vmwgfx-fixes-3.15' of git://people.freedesktop.org/~thomash/linux:
  drm/vmwgfx: Make sure user-space can't DMA across buffer object boundaries v2
2014-04-30 09:43:43 +10:00
Bjorn Helgaas b3413afb4a PNP: Fix compile error in quirks.c
Fix the compile error:

drivers/pnp/quirks.c:393:2: error: implicit declaration of function 'pcibios_bus_to_resource'

that occurs when building with CONFIG_PCI unset.  The quirk is only
relevent to Intel devices, so we could use "#if defined(CONFIG_X86) &&
defined(CONFIG_PCI)" instead, but testing CONFIG_X86 is not strictly
necessary.

Fixes: cb171f7abb (PNP: Work around BIOS defects in Intel MCH area reporting)
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-04-29 23:31:15 +02:00
Kieran Clancy 3eba563e28 ACPI / EC: Process rather than discard events in acpi_ec_clear
Address a regression caused by commit ad332c8a4533:
(ACPI / EC: Clear stale EC events on Samsung systems)

After the earlier patch, there was found to be a race condition on some
earlier Samsung systems (N150/N210/N220). The function acpi_ec_clear was
sometimes discarding a new EC event before its GPE was triggered by the
system. In the case of these systems, this meant that the "lid open"
event was not registered on resume if that was the cause of the wake,
leading to problems when attempting to close the lid to suspend again.

After testing on a number of Samsung systems, both those affected by the
previous EC bug and those affected by the race condition, it seemed that
the best course of action was to process rather than discard the events.
On Samsung systems which accumulate stale EC events, there does not seem
to be any adverse side-effects of running the associated _Q methods.

This patch adds an argument to the static function acpi_ec_sync_query so
that it may be used within the acpi_ec_clear loop in place of
acpi_ec_query_unlocked which was used previously.

With thanks to Stefan Biereigel for reporting the issue, and for all the
people who helped test the new patch on affected systems.

Fixes: ad332c8a45 (ACPI / EC: Clear stale EC events on Samsung systems)
References: https://lkml.kernel.org/r/532FE3B2.9060808@biereigel-wb.de
References: https://bugzilla.kernel.org/show_bug.cgi?id=44161#c173
Reported-by: Stefan Biereigel <stefan@biereigel.de>
Signed-off-by: Kieran Clancy <clancy.kieran@gmail.com>
Tested-by: Stefan Biereigel <stefan@biereigel.de>
Tested-by: Dennis Jansen <dennis.jansen@web.de>
Tested-by: Nicolas Porcel <nicolasporcel06@gmail.com>
Tested-by: Maurizio D'Addona <mauritiusdadd@gmail.com>
Tested-by: Juan Manuel Cabo <juanmanuel.cabo@gmail.com>
Tested-by: Giannis Koutsou <giannis.koutsou@gmail.com>
Tested-by: Kieran Clancy <clancy.kieran@gmail.com>
Cc: 3.14+ <stable@vger.kernel.org> # 3.14+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-04-29 23:07:38 +02:00
Thomas Gleixner fb0095da19 Merge branch 'clockevents/3.15-fixes' of git://git.linaro.org/people/daniel.lezcano/linux into timers/urgent
clockevent fixes for 3.15 from Daniel Lezcano:
 * Lorenzo Pieralizi fixed an issue with the arch_arm_timer where the
   C3STOP flag for all the arch can cause some trouble by setting the
   flag only if the power domain is not always on
 * Alexander Shiyan fixed a compilation by changing the init function
   to the right prototype
2014-04-29 19:26:58 +02:00
Thomas Gleixner 0a1f83ac64 mvebu irqchip ifxes for v3.15
- armada-370-xp
 
     - fix invalid cast (signed to unsigned)
     - add ->check_device() msi_chip op
     - fix releasing of MSIs
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Merge tag 'mvebu-irqchip-fixes-3.15' of git://git.infradead.org/linux-mvebu into irq/urgent

Bugfixes for armada-370-xp SoC from Jason Cooper:
 * Fix invalid cast (signed to unsigned)
 * Add missing ->check_device() msi_chip op
 * Fix releasing of MSIs
2014-04-29 19:23:22 +02:00
Takashi Iwai 6ba736dd02 ALSA: hda - Suppress CORBRP clear on Nvidia controller chips
The recent commit (ca460f8652) changed the CORB RP reset procedure to
follow the specification with a couple of sanity checks.
Unfortunately, Nvidia controller chips seem not following this way,
and spew the warning messages like:
  snd_hda_intel 0000:00:10.1: CORB reset timeout#1, CORBRP = 0

This patch adds the workaround for such chips.  It just skips the new
reset procedure for the known broken chips.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-04-29 18:41:22 +02:00
Mike Snitzer fbcde3d8b9 dm thin: use INIT_WORK_ONSTACK in noflush_work to avoid ODEBUG warning
Use INIT_WORK_ONSTACK to silence "ODEBUG: object is on stack, but not
annotated".

Reported-by: Zdeněk Kabeláč <zkabelac@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Acked-by: Joe Thornber <ejt@redhat.com>
2014-04-29 11:22:04 -04:00
Grant Likely 58b116bce1 drivercore: deferral race condition fix
When the kernel is built with CONFIG_PREEMPT it is possible to reach a state
when all modules loaded but some driver still stuck in the deferred list
and there is a need for external event to kick the deferred queue to probe
these drivers.

The issue has been observed on embedded systems with CONFIG_PREEMPT enabled,
audio support built as modules and using nfsroot for root filesystem.

The following log fragment shows such sequence when all audio modules
were loaded but the sound card is not present since the machine driver has
failed to probe due to missing dependency during it's probe.
The board is am335x-evmsk (McASP<->tlv320aic3106 codec) with davinci-evm
machine driver:

...
[   12.615118] davinci-mcasp 4803c000.mcasp: davinci_mcasp_probe: ENTER
[   12.719969] davinci_evm sound.3: davinci_evm_probe: ENTER
[   12.725753] davinci_evm sound.3: davinci_evm_probe: snd_soc_register_card
[   12.753846] davinci-mcasp 4803c000.mcasp: davinci_mcasp_probe: snd_soc_register_component
[   12.922051] davinci-mcasp 4803c000.mcasp: davinci_mcasp_probe: snd_soc_register_component DONE
[   12.950839] davinci_evm sound.3: ASoC: platform (null) not registered
[   12.957898] davinci_evm sound.3: davinci_evm_probe: snd_soc_register_card DONE (-517)
[   13.099026] davinci-mcasp 4803c000.mcasp: Kicking the deferred list
[   13.177838] davinci-mcasp 4803c000.mcasp: really_probe: probe_count = 2
[   13.194130] davinci_evm sound.3: snd_soc_register_card failed (-517)
[   13.346755] davinci_mcasp_driver_init: LEAVE
[   13.377446] platform sound.3: Driver davinci_evm requests probe deferral
[   13.592527] platform sound.3: really_probe: probe_count = 0

In the log the machine driver enters it's probe at 12.719969 (this point it
has been removed from the deferred lists). McASP driver already executing
it's probing (since 12.615118).
The machine driver tries to construct the sound card (12.950839) but did
not found one of the components so it fails. After this McASP driver
registers all the ASoC components (the machine driver still in it's probe
function after it failed to construct the card) and the deferred work is
prepared at 13.099026 (note that this time the machine driver is not in the
lists so it is not going to be handled when the work is executing).
Lastly the machine driver exit from it's probe and the core places it to
the deferred list but there will be no other driver going to load and the
deferred queue is not going to be kicked again - till we have external event
like connecting USB stick, etc.

The proposed solution is to try the deferred queue once more when the last
driver is asking for deferring and we had drivers loaded while this last
driver was probing.

This way we can avoid drivers stuck in the deferred queue.

Signed-off-by: Grant Likely <grant.likely@linaro.org>
Reviewed-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Tested-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Mark Brown <broonie@kernel.org>
Cc: Stable <stable@vger.kernel.org> # v3.4+
2014-04-29 15:44:05 +01:00
Alexander Shiyan 9afa27ce94 clocksource: nspire: Fix compiler warning
CC      drivers/clocksource/zevio-timer.o
drivers/clocksource/zevio-timer.c:215:1: warning: comparison of distinct pointer types lacks a cast [enabled by default]

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2014-04-29 15:06:43 +02:00