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441977 commits

Author SHA1 Message Date
Linus Torvalds e981e79585 Drivercore race condition fix (exposed by devicetree)
This branch fixes a bug where a device can get stuck in the deferred
 list even though all its dependencies are met. The bug has existed for a
 long time, but new platform conversions to device tree have exposed it.
 This patch is needed to get those platforms working.
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Merge tag 'dt-for-linus' of git://git.secretlab.ca/git/linux

Pull driver core deferred probe fix from Grant Likely:
 "Drivercore race condition fix (exposed by devicetree)

  This branch fixes a bug where a device can get stuck in the deferred
  list even though all its dependencies are met.  The bug has existed
  for a long time, but new platform conversions to device tree have
  exposed it.  This patch is needed to get those platforms working.

  This was the pending bug fix I mentioned in my previous pull request.
  Normally this would go through Greg's tree seeing that it is a
  drivercore change, but devicetree exposes the problem.  I've discussed
  with Greg and he okayed me asking you to pull directly"

* tag 'dt-for-linus' of git://git.secretlab.ca/git/linux:
  drivercore: deferral race condition fix
2014-05-02 18:12:54 -07:00
Rafael J. Wysocki de3afce533 Merge branches 'acpi-ec' and 'acpi-processor'
* acpi-ec:
  ACPI / EC: Process rather than discard events in acpi_ec_clear

* acpi-processor:
  ACPI / processor: Fix failure of loading acpi-cpufreq driver
2014-05-03 00:20:31 +02:00
Rafael J. Wysocki 25d6db963c Merge branch 'pnp'
* pnp:
  PNP / ACPI: Do not return errors if _DIS or _SRS are not present
  PNP: Fix compile error in quirks.c
2014-05-03 00:20:18 +02:00
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
Ezequiel Garcia 39076b047b net: mvmdio: Check for a valid interrupt instead of an error
The following commit:

commit 9ec36cafe4
Author: Rob Herring <robh@kernel.org>
Date:   Wed Apr 23 17:57:41 2014 -0500

    of/irq: do irq resolution in platform_get_irq

changed platform_get_irq() which now returns EINVAL and EPROBE_DEFER,
in addition to ENXIO. If there's no interrupt for mvmdio, platform_get_irq()
returns EINVAL, but we currently check only for ENXIO.

Fix this by looking for a positive integer, which is the proper way of
validating a virtual interrupt number.

While at it, add a proper handling for the deferral probe case.

Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Reviewed-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-02 16:18:54 -04:00
Balakumaran Kannan e46e08b843 net phy: Check for aneg completion before setting state to PHY_RUNNING
phy_state_machine should check whether auto-negotiatin is completed
before changing phydev->state from PHY_NOLINK to PHY_RUNNING. If
auto-negotiation is not completed phydev->state should be set to
PHY_AN.

Signed-off-by: Balakumaran Kannan <kumaran.4353@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-02 15:50:57 -04:00
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
Kirill Tkhai 49b6c01f4c sparc64: Make itc_sync_lock raw
One more place where we must not be able
to be preempted or to be interrupted in RT.

Always actually disable interrupts during
synchronization cycle.

Signed-off-by: Kirill Tkhai <tkhai@yandex.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-02 01:15:16 -04:00
David S. Miller aa3449ee9c sparc64: Fix argument sign extension for compat_sys_futex().
Only the second argument, 'op', is signed.

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-02 01:13:35 -04:00
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
Greg Kroah-Hartman 4dd7aa0f3c usb: fixes for v3.15-rc4
Small pull request this time containing only 3 patches.
 
 One patch is fixing at91 resource retrieval, one fixes a
 conditional in the generic OTG FSM and another fixes a
 state transition also on our generic OTG FSM.
 
 Signed-of-by: Felipe Balbi <balbi@ti.com>
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Merge tag 'fixes-for-v3.15-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-linus

Felipe writes:

usb: fixes for v3.15-rc4

Small pull request this time containing only 3 patches.

One patch is fixing at91 resource retrieval, one fixes a
conditional in the generic OTG FSM and another fixes a
state transition also on our generic OTG FSM.

Signed-of-by: Felipe Balbi <balbi@ti.com>
2014-05-01 16:26:24 -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
John W. Linville 812e4dafa4 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem 2014-05-01 11:23:21 -04:00
Al Viro 41edf278fc dentry_kill(): don't try to remove from shrink list
If the victim in on the shrink list, don't remove it from there.
If shrink_dentry_list() manages to remove it from the list before
we are done - fine, we'll just free it as usual.  If not - mark
it with new flag (DCACHE_MAY_FREE) and leave it there.

Eventually, shrink_dentry_list() will get to it, remove the sucker
from shrink list and call dentry_kill(dentry, 0).  Which is where
we'll deal with freeing.

Since now dentry_kill(dentry, 0) may happen after or during
dentry_kill(dentry, 1), we need to recognize that (by seeing
DCACHE_DENTRY_KILLED already set), unlock everything
and either free the sucker (in case DCACHE_MAY_FREE has been
set) or leave it for ongoing dentry_kill(dentry, 1) to deal with.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-05-01 10:30:00 -04:00
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
Al Viro 01b6035190 expand the call of dentry_lru_del() in dentry_kill()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-04-30 18:02:52 -04:00
Al Viro b4f0354e96 new helper: dentry_free()
The part of old d_free() that dealt with actual freeing of dentry.
Taken out of dentry_kill() into a separate function.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-04-30 18:02:52 -04:00
Al Viro 5c47e6d0ad fold try_prune_one_dentry()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-04-30 18:02:51 -04:00
Al Viro 03b3b889e7 fold d_kill() and d_free()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-04-30 18:02:51 -04:00
Greg Kroah-Hartman 86281966c7 Second set of fixes for IIO in the 3.15 cycle.
* ad2s1200 - Fix some missing parenthesis in a for statement that could have
   led to an error being missed when getting gpios.
 * Fix a null derefference issue in the mpu6050 when platform data is not
   provided (or is provided via the device tree for example).
 * exynos_adc bug on remove due to child devices having been added to the
   parent of the IIO device rather than the IIO device itself.  This caused an
   issue with the IIO device removing itself in it's remove function.
 * Make all ADC drivers buildable as modules to avoid dependency issues if
   the IIO core is itself built as a module.  The exynos adc bug became
   apparently whilst this fix was being tested.
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Merge tag 'iio-fixes-for-3.15b' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus

Jonathan writes:

Second set of fixes for IIO in the 3.15 cycle.

* ad2s1200 - Fix some missing parenthesis in a for statement that could have
  led to an error being missed when getting gpios.
* Fix a null derefference issue in the mpu6050 when platform data is not
  provided (or is provided via the device tree for example).
* exynos_adc bug on remove due to child devices having been added to the
  parent of the IIO device rather than the IIO device itself.  This caused an
  issue with the IIO device removing itself in it's remove function.
* Make all ADC drivers buildable as modules to avoid dependency issues if
  the IIO core is itself built as a module.  The exynos adc bug became
  apparently whilst this fix was being tested.
2014-04-30 14:19:23 -07:00
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
KY Srinivasan 22041fb05b hyperv: Properly handle checksum offload
Do checksum offload only if the client of the driver wants checksum to be
offloaded.

In V1 version of this patch, I  addressed comments from
Stephen Hemminger <stephen@networkplumber.org> and
Eric Dumazet <eric.dumazet@gmail.com>.

In this version of the patch I have addressed comments from
David Miller.

This patch fixes a bug that is exposed in gateway scenarios.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-30 16:12:23 -04:00
Claudiu Manoil 6ce29b0e2a gianfar: Avoid unnecessary reg accesses in adjust_link()
For phy devices that don't issue interrupts upon link
state changes, phylib polls the link state resulting in
repeated calls to adjust_link(), even if the link state
didn't change.  As a result, some mac registers are
repeatedly read and written with the same values, which
is not ok.

To fix this, adjust_link() has been refactored to check
first whether the link state has changed and to take action
only if needed, updating mac registers and local state
variables.  The 'new_state' local flag, set if one of the
link params changed (link, speed or duplex), has been
rendered useless and removed by this refactoring.

Signed-off-by: Claudiu Manoil <claudiu.manoil@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-30 16:12:23 -04:00
Liu Yu 0cda345d1b tcp_cubic: fix the range of delayed_ack
commit b9f47a3aae (tcp_cubic: limit delayed_ack ratio to prevent
divide error) try to prevent divide error, but there is still a little
chance that delayed_ack can reach zero. In case the param cnt get
negative value, then ratio+cnt would overflow and may happen to be zero.
As a result, min(ratio, ACK_RATIO_LIMIT) will calculate to be zero.

In some old kernels, such as 2.6.32, there is a bug that would
pass negative param, which then ultimately leads to this divide error.

commit 5b35e1e6e9 (tcp: fix tcp_trim_head() to adjust segment count
with skb MSS) fixed the negative param issue. However,
it's safe that we fix the range of delayed_ack as well,
to make sure we do not hit a divide by zero.

CC: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: Liu Yu <allanyuliu@tencent.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-30 16:12:22 -04:00
Brendan Hickey e5744fe9d2 bpf_dbg: fix wrong register usage
The AND instruction is erroneously using the X register instead
of the K register.

Signed-off-by: Brendan Hickey <bhickey@google.com>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-30 16:12:22 -04:00
Vlad Yasevich f114890cdf Revert "macvlan : fix checksums error when we are in bridge mode"
This reverts commit 12a2856b60.
The commit above doesn't appear to be necessary any more as the
checksums appear to be correctly computed/validated.

Additionally the above commit breaks kvm configurations where
one VM is using a device that support checksum offload (virtio) and
the other VM does not.
In this case, packets leaving virtio device will have CHECKSUM_PARTIAL
set.  The packets is forwarded to a macvtap that has offload features
turned off.  Since we use CHECKSUM_UNNECESSARY, the host does does not
update the checksum and thus a bad checksum is passed up to
the guest.

CC: Daniel Lezcano <daniel.lezcano@free.fr>
CC: Patrick McHardy <kaber@trash.net>
CC: Andrian Nord <nightnord@gmail.com>
CC: Eric Dumazet <eric.dumazet@gmail.com>
CC: Michael S. Tsirkin <mst@redhat.com>
CC: Jason Wang <jasowang@redhat.com>
Signed-off-by: Vlad Yasevich <vyasevic@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-30 16:12:22 -04:00
Vlad Yasevich cbdb04279c mactap: Fix checksum errors for non-gso packets in bridge mode
The following is a problematic configuration:

 VM1: virtio-net device connected to macvtap0@eth0
 VM2: e1000 device connect to macvtap1@eth0

The problem is is that virtio-net supports checksum offloading
and thus sends the packets to the host with CHECKSUM_PARTIAL set.
On the other hand, e1000 does not support any acceleration.

For small TCP packets (and this includes the 3-way handshake),
e1000 ends up receiving packets that only have a partial checksum
set.  This causes TCP to fail checksum validation and to drop
packets.  As a result tcp connections can not be established.

Commit 3e4f8b7873
	macvtap: Perform GSO on forwarding path.
fixes this issue for large packets wthat will end up undergoing GSO.
This commit adds a check for the non-GSO case and attempts to
compute the checksum for partially checksummed packets in the
non-GSO case.

CC: Daniel Lezcano <daniel.lezcano@free.fr>
CC: Patrick McHardy <kaber@trash.net>
CC: Andrian Nord <nightnord@gmail.com>
CC: Eric Dumazet <eric.dumazet@gmail.com>
CC: Michael S. Tsirkin <mst@redhat.com>
CC: Jason Wang <jasowang@redhat.com>
Signed-off-by: Vlad Yasevich <vyasevic@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-30 16:12:22 -04:00
Eric Dumazet fc9f350106 tcp: increment retransmit counters in tlp and fast open
Both TLP and Fast Open call __tcp_retransmit_skb() instead of
tcp_retransmit_skb() to avoid changing tp->retrans_out.

This has the side effect of missing SNMP counters increments as well
as tcp_info tcpi_total_retrans updates.

Fix this by moving the stats increments of into __tcp_retransmit_skb()

Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Nandita Dukkipati <nanditad@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-30 16:12:22 -04:00
Byungho An 3dc638d13a net: sxgbe: Added set function for interrupt on complete
This patch adds set_rx_int_on_com function for interrupt when
dma is completed.

Signed-off-by: Byungho An <bh74.an@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-30 16:12:22 -04:00
Byungho An 325b94f7e6 net: sxgbe: Added rxqueue enable function
This patch adds rxqueue enable function according to number of rxqueue
and adds rxqueue disable function for removing.

Signed-off-by: Byungho An <bh74.an@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-30 16:12:22 -04:00
Byungho An 0a0347b1e6 net: sxgbe: sw reset moved to probe function
This patch moves sw reset to probe function because
sw reset is needed early stage before open function.

Signed-off-by: Byungho An <bh74.an@samsung.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-30 16:12:22 -04:00
Roland Dreier d2e752db6d cxgb4: Decode PCIe Gen3 link speed
Add handling for " 8 GT/s" in print_port_info().

Signed-off-by: Roland Dreier <roland@purestorage.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-30 16:12:21 -04:00
Tobias Klauser 652f99ead8 Altera TSE: Add missing include to silence sparse warnings
This fixes the following sparse warnings:

drivers/net/ethernet/altera/altera_msgdma.c:23:5: warning: symbol 'msgdma_initialize' was not declared. Should it be static?
drivers/net/ethernet/altera/altera_msgdma.c:28:6: warning: symbol 'msgdma_uninitialize' was not declared. Should it be static?
drivers/net/ethernet/altera/altera_msgdma.c:32:6: warning: symbol 'msgdma_reset' was not declared. Should it be static?
drivers/net/ethernet/altera/altera_msgdma.c:77:6: warning: symbol 'msgdma_disable_rxirq' was not declared. Should it be static?
drivers/net/ethernet/altera/altera_msgdma.c:83:6: warning: symbol 'msgdma_enable_rxirq' was not declared. Should it be static?
drivers/net/ethernet/altera/altera_msgdma.c:89:6: warning: symbol 'msgdma_disable_txirq' was not declared. Should it be static?
drivers/net/ethernet/altera/altera_msgdma.c:95:6: warning: symbol 'msgdma_enable_txirq' was not declared. Should it be static?
drivers/net/ethernet/altera/altera_msgdma.c:101:6: warning: symbol 'msgdma_clear_rxirq' was not declared. Should it be static?
drivers/net/ethernet/altera/altera_msgdma.c:107:6: warning: symbol 'msgdma_clear_txirq' was not declared. Should it be static?
drivers/net/ethernet/altera/altera_msgdma.c:114:5: warning: symbol 'msgdma_tx_buffer' was not declared. Should it be static?
drivers/net/ethernet/altera/altera_msgdma.c:129:5: warning: symbol 'msgdma_tx_completions' was not declared. Should it be static?
drivers/net/ethernet/altera/altera_msgdma.c:154:5: warning: symbol 'msgdma_add_rx_desc' was not declared. Should it be static?
drivers/net/ethernet/altera/altera_msgdma.c:181:5: warning: symbol 'msgdma_rx_status' was not declared. Should it be static?

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Acked-by: Vince Bridgers <vbridgers2013@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-30 16:12:21 -04:00
Tobias Klauser 1b4448815e Altera TSE: Fix DMA secriptor length initialization
sgdma_descrip is a function name as well as the name of a struct. In
sgdma_initialize(), we should initialize the descriptor length field
with the actual length of a descriptor not with the size of the
function. In order to prevent such things from happening in the future,
rename the function to sgdma_setup_descrip().

Found by sparse which yields the following warning:

drivers/net/ethernet/altera/altera_sgdma.c:74:30: warning: expression using sizeof on a function

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-30 16:12:21 -04:00