Commit Graph

428416 Commits

Author SHA1 Message Date
Lars-Peter Clausen
e95d73c437 ASoC: ams-delta: Fix compile error
snd_soc_dapm_mutex_unlock() wants a pointer to the DAPM context, not the CODEC.

Fixes: 03510ca07 ("ASoC: ams-delta: Update locking around use of DAPM pin API")
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-03-13 09:32:26 +00:00
Takashi Iwai
5fdb83f190 ASoC: Updates for v3.15
Quite a busy release for ASoC this time, more on janitorial work than
 exciting new features but welcome nontheless:
 
  - Lots of cleanups from Takashi for enumerations; the original API for
    these was error prone so he's refactored lots of code to use more
    modern APIs which avoid issues.
  - Elimination of the ASoC level wrappers for I2C and SPI moving us
    closer to converting to regmap completely and avoiding some
    randconfig hassle.
  - Provide both manually and transparently locked DAPM APIs rather than
    a mix of the two fixing some concurrency issues.
  - Start converting CODEC drivers to use separate bus interface drivers
    rather than having them all in one file helping avoid dependency
    issues.
  - DPCM support for Intel Haswell and Bay Trail platforms.
  - Lots of work on improvements for simple-card, DaVinci and the Renesas
    rcar drivers.
  - New drivers for Analog Devices ADAU1977, TI PCM512x and parts of the
    CSR SiRF SoC.
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Merge tag 'asoc-v3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next

ASoC: Updates for v3.15

Quite a busy release for ASoC this time, more on janitorial work than
exciting new features but welcome nontheless:

 - Lots of cleanups from Takashi for enumerations; the original API for
   these was error prone so he's refactored lots of code to use more
   modern APIs which avoid issues.
 - Elimination of the ASoC level wrappers for I2C and SPI moving us
   closer to converting to regmap completely and avoiding some
   randconfig hassle.
 - Provide both manually and transparently locked DAPM APIs rather than
   a mix of the two fixing some concurrency issues.
 - Start converting CODEC drivers to use separate bus interface drivers
   rather than having them all in one file helping avoid dependency
   issues.
 - DPCM support for Intel Haswell and Bay Trail platforms.
 - Lots of work on improvements for simple-card, DaVinci and the Renesas
   rcar drivers.
 - New drivers for Analog Devices ADAU1977, TI PCM512x and parts of the
   CSR SiRF SoC.
2014-03-13 09:53:25 +01:00
Dave Airlie
f042cc4a60 Merge tag 'ttm-fixes-3.14-2014-03-12' of git://people.freedesktop.org/~thomash/linux into drm-fixes
Second pull request of 2014-03-12. The first one was requested to be canceled.

Rob's fix for oops on invalidate_caches() and a fix for a
performance regression.

* tag 'ttm-fixes-3.14-2014-03-12' of git://people.freedesktop.org/~thomash/linux:
  drm/ttm: don't oops if no invalidate_caches()
  drm/ttm: Work around performance regression with VM_PFNMAP
2014-03-13 17:31:24 +10:00
Dave Airlie
bf21d605bf Merge branch 'drm-fixes-3.14' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
A few more radeon fixes.

* 'drm-fixes-3.14' of git://people.freedesktop.org/~agd5f/linux:
  drm/radeon/cik: properly set compute ring status on disable
  drm/radeon/cik: stop the sdma engines in the enable() function
  drm/radeon/cik: properly set sdma ring status on disable
  drm/radeon: fix runpm disabling on non-PX harder
2014-03-13 17:31:01 +10:00
Dave Airlie
7aa4a0648e Merge tag 'vmwgfx-fixes-3.14-2014-03-13' of git://people.freedesktop.org/~thomash/linux into drm-fixes
Pull request of 2014-03-13

one minor fix for new hw

* tag 'vmwgfx-fixes-3.14-2014-03-13' of git://people.freedesktop.org/~thomash/linux:
  drm/vmwgfx: Fix a surface reference corner-case in legacy emulation mode
2014-03-13 17:30:31 +10:00
Thomas Hellstrom
4b0c82529b drm/vmwgfx: Fix a surface reference corner-case in legacy emulation mode
If running on a gb-object capable device with a non-gb capable surface
exporter (X server) and a gb capable surface referencing client (GL driver),
the referencing client expects to find a shareable backing buffer attached to
the surface at reference time. This may not be the case if the surface has
not yet been validated. This would cause the surface reference IOCTL to
return an error.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
2014-03-13 07:51:32 +01:00
Linus Torvalds
ac9dc67b73 PCI updates for v3.14:
Resource management
     - Fix allocation from 0-4GB regions (Bjorn Helgaas)
 
   Miscellaneous
     - Enable INTx only when MSI/MSI-X not enabled (Bjorn Helgaas)
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Merge tag 'pci-v3.14-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI fixes from Bjorn Helgaas:
 "These are two important regression fixes for bugs we've introduced so
  far in v3.14.

  One of the resource allocation changes from the merge window is broken
  for 32-bit kernels where we don't use _CRS for PCI host bridges
  (mostly pre-2008 machines), so there's a fix for that.

  The INTx enable change we put in after the merge window turned out to
  break pciehp because we re-enable INTx on the hotplug bridge, which
  apparently breaks MSI for future hotplug events"

* tag 'pci-v3.14-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
  PCI: Don't check resource_size() in pci_bus_alloc_resource()
  PCI: Enable INTx in pci_reenable_device() only when MSI/MSI-X not enabled
2014-03-12 18:29:34 -07:00
Linus Torvalds
18f2af2d68 The ARM patch fixes a build breakage with randconfig. The x86 one
fixes Windows guests on AMD processors.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM fixes from Paolo Bonzini:
 "The ARM patch fixes a build breakage with randconfig.  The x86 one
  fixes Windows guests on AMD processors"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: SVM: fix cr8 intercept window
  ARM: KVM: fix non-VGIC compilation
2014-03-12 17:27:23 -07:00
Rafael J. Wysocki
c4e1acbb35 ACPI / init: Invoke early ACPI initialization later
Commit 73f7d1ca32 (ACPI / init: Run acpi_early_init() before
timekeeping_init()) optimistically moved the early ACPI initialization
before timekeeping_init(), but that didn't work, because it broke fast
TSC calibration for Julian Wollrath on Thinkpad x121e (and most likely
for others too).  The reason is that acpi_early_init() enables the SCI
and that interferes with the fast TSC calibration mechanism.

Thus follow the original idea to execute acpi_early_init() before
efi_enter_virtual_mode() to help the EFI people for now and we can
revisit the other problem that commit 73f7d1ca32 attempted to
address in the future (if really necessary).

Fixes: 73f7d1ca32 (ACPI / init: Run acpi_early_init() before timekeeping_init())
Reported-by: Julian Wollrath <jwollrath@web.de>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-03-13 00:53:51 +01:00
Rafael J. Wysocki
2ed99e39cb cpufreq: Skip current frequency initialization for ->setpolicy drivers
After commit da60ce9f2f (cpufreq: call cpufreq_driver->get() after
calling ->init()) __cpufreq_add_dev() sometimes fails for CPUs handled
by intel_pstate, because that driver may return 0 from its ->get()
callback if it has not run long enough to collect enough samples on the
given CPU.  That didn't happen before commit da60ce9f2f which added
policy->cur initialization to __cpufreq_add_dev() to help reduce code
duplication in other cpufreq drivers.

However, the code added by commit da60ce9f2f need not be executed
for cpufreq drivers having the ->setpolicy callback defined, because
the subsequent invocation of cpufreq_set_policy() will use that
callback to initialize the policy anyway and it doesn't need
policy->cur to be initialized upfront.  The analogous code in
cpufreq_update_policy() is also unnecessary for cpufreq drivers
having ->setpolicy set and may be skipped for them as well.

Since intel_pstate provides ->setpolicy, skipping the upfront
policy->cur initialization for cpufreq drivers with that callback
set will cover intel_pstate and the problem it's been having after
commit da60ce9f2f will be addressed.

Fixes: da60ce9f2f (cpufreq: call cpufreq_driver->get() after calling ->init())
References: https://bugzilla.kernel.org/show_bug.cgi?id=71931
Reported-and-tested-by: Patrik Lundquist <patrik.lundquist@gmail.com>
Acked-by: Dirk Brandewie <dirk.j.brandewie@intel.com>
Cc: 3.13+ <stable@vger.kernel.org> # 3.13+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-03-13 00:37:16 +01:00
Mark Brown
deeed33850 Merge remote-tracking branches 'asoc/topic/wm8996', 'asoc/topic/wm9081' and 'asoc/topic/wm9705' into asoc-next 2014-03-12 23:05:31 +00:00
Mark Brown
139f4b836b Merge remote-tracking branches 'asoc/topic/wm8961', 'asoc/topic/wm8962', 'asoc/topic/wm8974', 'asoc/topic/wm8983', 'asoc/topic/wm8988', 'asoc/topic/wm8990', 'asoc/topic/wm8991', 'asoc/topic/wm8993' and 'asoc/topic/wm8994' into asoc-next 2014-03-12 23:05:18 +00:00
Mark Brown
543f190ace Merge remote-tracking branches 'asoc/topic/wm5100', 'asoc/topic/wm8523', 'asoc/topic/wm8731', 'asoc/topic/wm8737', 'asoc/topic/wm8741', 'asoc/topic/wm8753', 'asoc/topic/wm8903', 'asoc/topic/wm8904', 'asoc/topic/wm8940' and 'asoc/topic/wm8955' into asoc-next 2014-03-12 23:05:05 +00:00
Mark Brown
ba67761c1a Merge remote-tracking branches 'asoc/topic/tlv320aic23', 'asoc/topic/tlv320aic26', 'asoc/topic/tlv320aic32x4', 'asoc/topic/tlv320aic3x', 'asoc/topic/tlv320dac33', 'asoc/topic/twl4030', 'asoc/topic/twl6040', 'asoc/topic/uda1380', 'asoc/topic/wl1273' and 'asoc/topic/wm2200' into asoc-next 2014-03-12 23:04:52 +00:00
Mark Brown
7cc6417208 Merge remote-tracking branches 'asoc/topic/samsung', 'asoc/topic/sgtl5000', 'asoc/topic/sh', 'asoc/topic/simple', 'asoc/topic/sirf', 'asoc/topic/sn95031', 'asoc/topic/ssm2602' and 'asoc/topic/stac9766' into asoc-next 2014-03-12 23:04:42 +00:00
Mark Brown
a4b12990b6 Merge remote-tracking branches 'asoc/topic/ml26124', 'asoc/topic/of', 'asoc/topic/omap', 'asoc/topic/pxa' and 'asoc/topic/rcar' into asoc-next 2014-03-12 23:04:35 +00:00
Mark Brown
84f6965e2b Merge remote-tracking branches 'asoc/topic/da7213', 'asoc/topic/da732x', 'asoc/topic/da9055', 'asoc/topic/davinci', 'asoc/topic/fsl', 'asoc/topic/fsl-esai', 'asoc/topic/fsl-sai' and 'asoc/topic/fsl-spdif' into asoc-next 2014-03-12 23:04:22 +00:00
Mark Brown
696cda5b5b Merge remote-tracking branches 'asoc/topic/arizona', 'asoc/topic/atmel', 'asoc/topic/cirrus', 'asoc/topic/cs4271', 'asoc/topic/cs42l51', 'asoc/topic/cs42l52', 'asoc/topic/cs42l73' and 'asoc/topic/da7210' into asoc-next 2014-03-12 23:04:15 +00:00
Mark Brown
950c66721d Merge remote-tracking branches 'asoc/topic/88pm860x', 'asoc/topic/ad1836', 'asoc/topic/ad193x', 'asoc/topic/adau1977', 'asoc/topic/ak4104', 'asoc/topic/ak4641', 'asoc/topic/ak4671' and 'asoc/topic/alc5623' into asoc-next 2014-03-12 23:04:09 +00:00
Mark Brown
52db65f0a8 Merge remote-tracking branch 'asoc/topic/pcm512x' into asoc-next 2014-03-12 23:04:08 +00:00
Mark Brown
3b93f0598c Merge remote-tracking branch 'asoc/topic/pcm1792a' into asoc-next 2014-03-12 23:04:07 +00:00
Mark Brown
08fa654549 Merge remote-tracking branch 'asoc/topic/pcm1681' into asoc-next 2014-03-12 23:04:07 +00:00
Mark Brown
b8f861586c Merge remote-tracking branch 'asoc/topic/enum' into asoc-next 2014-03-12 23:03:59 +00:00
Mark Brown
53a2c4db8c Merge remote-tracking branch 'asoc/topic/dapm' into asoc-next 2014-03-12 23:03:58 +00:00
Mark Brown
da8ab21cfe Merge remote-tracking branch 'asoc/topic/core' into asoc-next 2014-03-12 23:03:58 +00:00
Mark Brown
c6c124225f Merge remote-tracking branch 'asoc/fix/spear' into asoc-linus 2014-03-12 23:03:57 +00:00
Mark Brown
9070ce7e40 ASoC: Fixes for v3.14
A few things here:
  - Avoid memory leaks in error cases with DPCM, this code has never been
    that well tested in mainline due to the lack of mainline drivers but
    we now have one queued for the merge window!
  - Fix the N810 audio driver to load when booted with DT since the
    platform was converted to DT during the merge window.
  - Fixes for initialisation of some MFD drivers that are probably unused
    in mainline
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Merge tag 'asoc-v3.14-rc6' into asoc-linus

ASoC: Fixes for v3.14

A few things here:
 - Avoid memory leaks in error cases with DPCM, this code has never been
   that well tested in mainline due to the lack of mainline drivers but
   we now have one queued for the merge window!
 - Fix the N810 audio driver to load when booted with DT since the
   platform was converted to DT during the merge window.
 - Fixes for initialisation of some MFD drivers that are probably unused
   in mainline

# gpg: Signature made Mon 10 Mar 2014 18:21:32 GMT using RSA key ID 7EA229BD
# gpg: Good signature from "Mark Brown <broonie@sirena.org.uk>"
# gpg:                 aka "Mark Brown <broonie@debian.org>"
# gpg:                 aka "Mark Brown <broonie@kernel.org>"
# gpg:                 aka "Mark Brown <broonie@tardis.ed.ac.uk>"
# gpg:                 aka "Mark Brown <broonie@linaro.org>"
# gpg:                 aka "Mark Brown <Mark.Brown@linaro.org>"
2014-03-12 23:03:56 +00:00
Linus Torvalds
2f727f50f6 sound fixes for 3.14-rc7
A few fixes for ASoC (N810 DT init fix, DPCM error path fix and
 a couple of MFD init fixes), and a fix for a Lenovo laptop.
 All small and trivial fixes, suitable for rc7.
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Merge tag 'sound-3.14-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "A few fixes for ASoC (N810 DT init fix, DPCM error path fix and a
  couple of MFD init fixes), and a fix for a Lenovo laptop.  All small
  and trivial fixes, suitable for rc7"

* tag 'sound-3.14-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ASoC: 88pm860: Fix IO setup
  ASoC: si476x: Fix IO setup
  ALSA: hda - Fix loud click noise with IdeaPad 410Y
  ASoC: pcm: free path list before exiting from error conditions
  ASoC: n810: fix init with DT boot
2014-03-12 15:36:04 -07:00
Mark Brown
051389e250 ASoC: tlv320aic23: Remove spurious bits per word setting
regmap should handle any byte ordering issues required, it is looking for
a byte stream from the bus, so don't set 16 bits per word. This is likely
to have tested out OK due to use of an unmerged SPI controller driver.

Signed-off-by: Mark Brown <broonie@linaro.org>
Tested-by: Max Filippov <jcmvbkbc@gmail.com>
2014-03-12 21:31:29 +00:00
Matthew Leach
dbb490b965 net: socket: error on a negative msg_namelen
When copying in a struct msghdr from the user, if the user has set the
msg_namelen parameter to a negative value it gets clamped to a valid
size due to a comparison between signed and unsigned values.

Ensure the syscall errors when the user passes in a negative value.

Signed-off-by: Matthew Leach <matthew.leach@arm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-12 16:29:24 -04:00
Alex Deucher
b2b3d8d952 drm/radeon/cik: properly set compute ring status on disable
When we disable the rings, set the status properly.  If
not other code pathes may try and use the rings which are
not functional at this point.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2014-03-12 16:20:44 -04:00
Tobias Klauser
7e814a6c50 MAINTAINERS: Add tools/net to NETWORKING [GENERAL]
Make sure patches for these tools go to the netdev list as well.

References: https://marc.info/?l=linux-kernel&m=139450284501328&w=2
Cc: David S. Miller <davem@davemloft.net>
Cc: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-12 16:16:23 -04:00
Geert Uytterhoeven
a93c125604 packet: doc: Spelling s/than/that/
Signed-off-by: Geert Uytterhoeven <geert+renesas@linux-m68k.org>
Cc: David S. Miller <davem@davemloft.net>
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-12 16:15:17 -04:00
David S. Miller
598f2e2bfb Merge branch 'mlx4'
Or Gerlitz says:

====================
mlx4 fixes

These short series fixes two bugs related to the vxlan support and a
missing req module call for the IB driver which is needed to support
IB/RDMA over Ethernet.

Pathes done over the net tree, commit dd38743 "vlan: Set correct
source MAC address with TX VLAN offload enabled"
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-12 16:13:17 -04:00
Or Gerlitz
7855bff42e net/mlx4_core: Load the IB driver when the device supports IBoE
When checking what protocol drivers to load, the IB driver should be
requested also over Ethernet ports, if the device supports IBoE (RoCE).

Fixes: b046ffe 'net/mlx4_core: Load higher level modules according to ports type'
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-12 16:12:42 -04:00
Or Gerlitz
2a2083f7f3 net/mlx4_en: Handle vxlan steering rules for mac address changes
When the device mac address is changed, we must deregister the vxlan
steering rule associated with the previous mac, and register a new
steering rule using the new mac.

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-12 16:12:41 -04:00
Or Gerlitz
56cb456746 net/mlx4_core: Fix wrong dump of the vxlan offloads device capability
Fix the value used to dump the vxlan offloads device capability to align
with the MLX4_DEV_CAP_FLAG2_yyy definition. While on that, add dump to
the IPoIB flow-steering device capability and fix small typo.

The vxlan cap value wasn't fully handled when a conflict was resolved
between MLX4_DEV_CAP_FLAG2_DMFS_IPOIB coming from the IB tree to
MLX4_DEV_CAP_FLAG2_VXLAN_OFFLOADS coming from net-next.

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-12 16:12:41 -04:00
Alex Deucher
07ae78c979 drm/radeon/cik: stop the sdma engines in the enable() function
We always stop the rings when disabling the engines so just
call the stop functions directly from the sdma enable function.
This way the rings' status is set correctly on suspend so
there are no problems on resume.  Fixes resume failures that
result in acceleration getting disabled.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2014-03-12 15:53:25 -04:00
Alex Deucher
7b1bbe883b drm/radeon/cik: properly set sdma ring status on disable
When we disable the rings, set the status properly.  If
not other code pathes may try and use the rings which are
not functional at this point.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2014-03-12 15:53:24 -04:00
Alex Deucher
7848865914 drm/radeon: fix runpm disabling on non-PX harder
Make sure runtime pm is disabled on non-PX hardware.
Should fix powerdown problems without displays attached.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2014-03-12 15:53:23 -04:00
Wei Liu
836fbaf459 xen-netback: use skb_is_gso in xenvif_start_xmit
In 5bd076708 ("Xen-netback: Fix issue caused by using gso_type wrongly")
we use skb_is_gso to determine if we need an extra slot to accommodate
the SKB. There's similar error in interface.c. Change that to use
skb_is_gso as well.

Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Cc: Annie Li <annie.li@oracle.com>
Cc: Ian Campbell <ian.campbell@citrix.com>
Cc: Paul Durrant <paul.durrant@citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-12 15:36:32 -04:00
Rob Clark
9ef7506f7e drm/ttm: don't oops if no invalidate_caches()
A few of the simpler TTM drivers (cirrus, ast, mgag200) do not implement
this function.  Yet can end up somehow with an evicted bo:

  BUG: unable to handle kernel NULL pointer dereference at           (null)
  IP: [<          (null)>]           (null)
  PGD 16e761067 PUD 16e6cf067 PMD 0
  Oops: 0010 [#1] SMP
  Modules linked in: bnep bluetooth rfkill fuse ip6t_rpfilter ip6t_REJECT ipt_REJECT xt_conntrack ebtable_nat ebtable_broute bridge stp llc ebtable_filter ebtables ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw ip6table_filter ip6_tables iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_security iptable_raw iptable_filter ip_tables sg btrfs zlib_deflate raid6_pq xor dm_queue_length iTCO_wdt iTCO_vendor_support coretemp kvm dcdbas dm_service_time microcode serio_raw pcspkr lpc_ich mfd_core i7core_edac edac_core ses enclosure ipmi_si ipmi_msghandler shpchp acpi_power_meter mperf nfsd auth_rpcgss nfs_acl lockd uinput sunrpc dm_multipath xfs libcrc32c ata_generic pata_acpi sr_mod cdrom
   sd_mod usb_storage mgag200 syscopyarea sysfillrect sysimgblt i2c_algo_bit lpfc drm_kms_helper ttm crc32c_intel ata_piix bfa drm ixgbe libata i2c_core mdio crc_t10dif ptp crct10dif_common pps_core scsi_transport_fc dca scsi_tgt megaraid_sas bnx2 dm_mirror dm_region_hash dm_log dm_mod
  CPU: 16 PID: 2572 Comm: X Not tainted 3.10.0-86.el7.x86_64 #1
  Hardware name: Dell Inc. PowerEdge R810/0H235N, BIOS 0.3.0 11/14/2009
  task: ffff8801799dabc0 ti: ffff88016c884000 task.ti: ffff88016c884000
  RIP: 0010:[<0000000000000000>]  [<          (null)>]           (null)
  RSP: 0018:ffff88016c885ad8  EFLAGS: 00010202
  RAX: ffffffffa04e94c0 RBX: ffff880178937a20 RCX: 0000000000000000
  RDX: 0000000000000000 RSI: 0000000000240004 RDI: ffff880178937a00
  RBP: ffff88016c885b60 R08: 00000000000171a0 R09: ffff88007cf171a0
  R10: ffffea0005842540 R11: ffffffff810487b9 R12: ffff880178937b30
  R13: ffff880178937a00 R14: ffff88016c885b78 R15: ffff880179929400
  FS:  00007f81ba2ef980(0000) GS:ffff88007cf00000(0000) knlGS:0000000000000000
  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  CR2: 0000000000000000 CR3: 000000016e763000 CR4: 00000000000007e0
  DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
  DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
  Stack:
   ffffffffa0306fae ffff8801799295c0 0000000000260004 0000000000000001
   ffff88016c885b60 ffffffffa0307669 00ff88007cf17738 ffff88017cf17700
   ffff880178937a00 ffff880100000000 ffff880100000000 0000000079929400
  Call Trace:
   [<ffffffffa0306fae>] ? ttm_bo_handle_move_mem+0x54e/0x5b0 [ttm]
   [<ffffffffa0307669>] ? ttm_bo_mem_space+0x169/0x340 [ttm]
   [<ffffffffa0307bd7>] ttm_bo_move_buffer+0x117/0x130 [ttm]
   [<ffffffff81130001>] ? perf_event_init_context+0x141/0x220
   [<ffffffffa0307cb1>] ttm_bo_validate+0xc1/0x130 [ttm]
   [<ffffffffa04e7377>] mgag200_bo_pin+0x87/0xc0 [mgag200]
   [<ffffffffa04e56c4>] mga_crtc_cursor_set+0x474/0xbb0 [mgag200]
   [<ffffffff811971d2>] ? __mem_cgroup_commit_charge+0x152/0x3b0
   [<ffffffff815c4182>] ? mutex_lock+0x12/0x2f
   [<ffffffffa0201433>] drm_mode_cursor_common+0x123/0x170 [drm]
   [<ffffffffa0205231>] drm_mode_cursor_ioctl+0x41/0x50 [drm]
   [<ffffffffa01f5ca2>] drm_ioctl+0x502/0x630 [drm]
   [<ffffffff815cbab4>] ? __do_page_fault+0x1f4/0x510
   [<ffffffff8101cb68>] ? __restore_xstate_sig+0x218/0x4f0
   [<ffffffff811b4445>] do_vfs_ioctl+0x2e5/0x4d0
   [<ffffffff8124488e>] ? file_has_perm+0x8e/0xa0
   [<ffffffff811b46b1>] SyS_ioctl+0x81/0xa0
   [<ffffffff815d05d9>] system_call_fastpath+0x16/0x1b
  Code:  Bad RIP value.
  RIP  [<          (null)>]           (null)
   RSP <ffff88016c885ad8>
  CR2: 0000000000000000

Signed-off-by: Rob Clark <rclark@redhat.com>
Reviewed-by: Jérôme Glisse <jglisse@redhat.com>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Cc: stable@vger.kernel.org
2014-03-12 19:53:51 +01:00
Heinz Mauelshagen
e893fba90c dm cache: fix access beyond end of origin device
In order to avoid wasting cache space a partial block at the end of the
origin device is not cached.  Unfortunately, the check for such a
partial block at the end of the origin device was flawed.

Fix accesses beyond the end of the origin device that occured due to
attempted promotion of an undetected partial block by:

- initializing the per bio data struct to allow cache_end_io to work properly
- recognizing access to the partial block at the end of the origin device
- avoiding out of bounds access to the discard bitset

Otherwise, users can experience errors like the following:

 attempt to access beyond end of device
 dm-5: rw=0, want=20971520, limit=20971456
 ...
 device-mapper: cache: promotion failed; couldn't copy block

Signed-off-by: Heinz Mauelshagen <heinzm@redhat.com>
Acked-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Cc: stable@vger.kernel.org
2014-03-12 13:52:00 -04:00
Heinz Mauelshagen
8b9d966665 dm cache: fix truncation bug when copying a block to/from >2TB fast device
During demotion or promotion to a cache's >2TB fast device we must not
truncate the cache block's associated sector to 32bits.  The 32bit
temporary result of from_cblock() caused a 32bit multiplication when
calculating the sector of the fast device in issue_copy_real().

Use an intermediate 64bit type to store the 32bit from_cblock() to allow
for proper 64bit multiplication.

Here is an example of how this bug manifests on an ext4 filesystem:

 EXT4-fs error (device dm-0): ext4_mb_generate_buddy:756: group 17136, 32768 clusters in bitmap, 30688 in gd; block bitmap corrupt.
 JBD2: Spotted dirty metadata buffer (dev = dm-0, blocknr = 0). There's a risk of filesystem corruption in case of system crash.

Signed-off-by: Heinz Mauelshagen <heinzm@redhat.com>
Acked-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Cc: stable@vger.kernel.org
2014-03-12 13:49:27 -04:00
Radim Krčmář
596f3142d2 KVM: SVM: fix cr8 intercept window
We always disable cr8 intercept in its handler, but only re-enable it
if handling KVM_REQ_EVENT, so there can be a window where we do not
intercept cr8 writes, which allows an interrupt to disrupt a higher
priority task.

Fix this by disabling intercepts in the same function that re-enables
them when needed. This fixes BSOD in Windows 2008.

Cc: <stable@vger.kernel.org>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Reviewed-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-03-12 18:21:10 +01:00
Bjorn Helgaas
ac93ac7403 PCI: Don't check resource_size() in pci_bus_alloc_resource()
Paul reported that after f75b99d5a7 ("PCI: Enforce bus address limits in
resource allocation") on a 32-bit kernel (CONFIG_PHYS_ADDR_T_64BIT not
set), intel-gtt complained "can't ioremap flush page - no chipset
flushing".  In addition, other PCI resource allocations, e.g., for bridge
windows, failed.

This happens because we incorrectly skip bus resources of
[mem 0x00000000-0xffffffff] because we think they are of size zero.
When resource_size_t is 32 bits wide, resource_size() on
[mem 0x00000000-0xffffffff] returns 0 because (r->end - r->start + 1)
overflows.

Therefore, we can't use "resource_size() == 0" to decide that allocation
from this resource will fail.  allocate_resource() should fail anyway if it
can't satisfy the address constraints, so we should just depend on that.

A [mem 0x00000000-0xffffffff] bus resource is obviously not really valid,
but we do fall back to it as a default when we don't have information about
host bridge apertures.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=71611
Fixes: f75b99d5a7 PCI: Enforce bus address limits in resource allocation
Reported-and-tested-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2014-03-12 11:19:20 -06:00
Bjorn Helgaas
3cdeb713dc PCI: Enable INTx in pci_reenable_device() only when MSI/MSI-X not enabled
Andreas reported that after 1f42db786b ("PCI: Enable INTx if BIOS left
them disabled"), pciehp surprise removal stopped working.

This happens because pci_reenable_device() on the hotplug bridge (used in
the pciehp_configure_device() path) clears the Interrupt Disable bit, which
apparently breaks the bridge's MSI hotplug event reporting.

Previously we cleared the Interrupt Disable bit in do_pci_enable_device(),
which is used by both pci_enable_device() and pci_reenable_device().  But
we use pci_reenable_device() after the driver may have enabled MSI or
MSI-X, and we *set* Interrupt Disable as part of enabling MSI/MSI-X.

This patch clears Interrupt Disable only when MSI/MSI-X has not been
enabled.

Fixes: 1f42db786b PCI: Enable INTx if BIOS left them disabled
Link: https://bugzilla.kernel.org/show_bug.cgi?id=71691
Reported-and-tested-by: Andreas Noever <andreas.noever@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
CC: stable@vger.kernel.org
CC: Sarah Sharp <sarah.a.sharp@linux.intel.com>
2014-03-12 11:19:18 -06:00
Thomas Hellstrom
0e6d6ec02f drm/ttm: Work around performance regression with VM_PFNMAP
A performance regression was introduced in TTM in linux 3.13 when we started using
VM_PFNMAP for shared mappings. In theory this should've been faster due to
less page book-keeping but it appears like VM_PFNMAP + x86 PAT + write-combine
is a particularly cpu-hungry combination, as seen by largely increased
cpu-usage on r200 GL video playback.

Until we've sorted out why, revert to always use VM_MIXEDMAP.
Reference: freedesktop.org bugzilla bug #75719

Reported-and-tested-by: <smoki00790@gmail.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Cc: stable@vger.kernel.org
2014-03-12 14:07:24 +01:00
Lars-Peter Clausen
5c1d5f091d ASoC: Fix use after free
Freeing the current list element while iterating over the list will cause a use
after free since the iterator function will still use the current element to
look up the next. Use list_for_each_safe() and remove the element from the list
before freeing it to avoid this.

Fixes: 1438c2f60b ("ASoC: Add a per component dai list")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-03-12 12:06:57 +00:00
Ales Novak
b12bb60d6c [SCSI] storvsc: NULL pointer dereference fix
If the initialization of storvsc fails, the storvsc_device_destroy()
causes NULL pointer dereference.

storvsc_bus_scan()
  scsi_scan_target()
    __scsi_scan_target()
      scsi_probe_and_add_lun(hostdata=NULL)
        scsi_alloc_sdev(hostdata=NULL)

	  sdev->hostdata = hostdata

	  now the host allocation fails

          __scsi_remove_device(sdev)

	  calls sdev->host->hostt->slave_destroy() ==
	  storvsc_device_destroy(sdev)
	    access of sdev->hostdata->request_mempool

Signed-off-by: Ales Novak <alnovak@suse.cz>
Signed-off-by: Thomas Abraham <tabraham@suse.com>
Reviewed-by: Jiri Kosina <jkosina@suse.cz>
Acked-by: K. Y. Srinivasan <kys@microsoft.com>
Cc: stable@vger.kernel.org
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2014-03-12 13:16:54 +04:00