Commit Graph

67477 Commits

Author SHA1 Message Date
Mike Turquette
09575693a2 Merge branch 'clk-rockchip' into clk-next 2014-07-23 19:41:39 -07:00
Heiko Stübner
b9e4ba5416 clk: rockchip: add clock controller for rk3288
Add the clock tree definition for the new rk3288 SoC.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Acked-By: Max Schwarz <max.schwarz@online.de>
Tested-By: Max Schwarz <max.schwarz@online.de>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-07-13 12:17:10 -07:00
Heiko Stübner
2c14736c75 clk: rockchip: add clock driver for rk3188 and rk3066 clocks
This adds a clock driver that handles the specific muxes, dividers and gates
of rk3188 and rk3066 SoCs.

The structure of the clock list resembles the arrangement of their
counterparts in the clock architecture diagrams found in the SoC
documentation.

Clocks exported to the clock provider are currently limited to well known
or measured ones. So additional clock exports may be necessary in the future.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Acked-By: Max Schwarz <max.schwarz@online.de>
Tested-By: Max Schwarz <max.schwarz@online.de>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-07-13 12:17:09 -07:00
Mike Turquette
cdae1730d0 Merge branch 'clk-fixes' into clk-next 2014-07-03 11:55:42 -07:00
Peter De Schrijver
fb2b3c9f68 clk: define and export clk_debugs_add_file
Define and export a new function clk_debugs_add_file which adds a file
to a existing clock's debugfs directory. This can be used by clock
providers to add debugfs entries which are not related to a specific clock
type. Examples include the ability to measure the rate of a clock. It can
also be used by modules to create new debugfs entries. This is useful if you
want to expose features for testing which can potentially cause system
instability such as allowing to change a clock's rate from userspace.

Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-07-02 16:15:55 -07:00
Mike Turquette
4924b8a2fa Samsung clock fixes for v3.16.
This pull request contains fixes for various issues found while testing
 -rc versions of Linux 3.16. Mostly two kinds of patches:
 
 * Fixes of incorrectly defined clocks
 
 1) a37c82a clk: samsung: exynos4: Remove SRC_MASK_ISP gates
 
     Issue present since v3.10.
 
 2) 0b1643b clk/exynos5250: fix bit number for tv sysmmu clock
 
     Issue present since v3.16.
 
 3) 44ff025 clk: exynos5420: Remove aclk66_peric from the clock tree description
 
     Issue present since v3.11.
 
 * Adding things missed by original patches
 
 1) cec1cde clk: samsung: fix several typos to fix boot on s3c2410
 2) 34ece9e clk: samsung: add more aliases for s3c24xx
 
     Both issues present since the driver was added in v3.16.
 
 3) a92dda4 clk: s3c64xx: Hookup SPI clocks correctly
 
     Issue present since v3.12.
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Merge tag 'for_3.16/samsung-clk-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tfiga/samsung-clk into clk-fixes-samsung

Samsung clock fixes for v3.16.

This pull request contains fixes for various issues found while testing
-rc versions of Linux 3.16. Mostly two kinds of patches:

* Fixes of incorrectly defined clocks

1) a37c82a clk: samsung: exynos4: Remove SRC_MASK_ISP gates

    Issue present since v3.10.

2) 0b1643b clk/exynos5250: fix bit number for tv sysmmu clock

    Issue present since v3.16.

3) 44ff025 clk: exynos5420: Remove aclk66_peric from the clock tree description

    Issue present since v3.11.

* Adding things missed by original patches

1) cec1cde clk: samsung: fix several typos to fix boot on s3c2410
2) 34ece9e clk: samsung: add more aliases for s3c24xx

    Both issues present since the driver was added in v3.16.

3) a92dda4 clk: s3c64xx: Hookup SPI clocks correctly

    Issue present since v3.12.
2014-07-02 10:05:56 -07:00
Peter Ujfalusi
5974b794cb dt/bindings: Binding documentation for Palmas clk32kg and clk32kgaudio clocks
Palmas class of devices can provide 32K clock(s) to be used by other devices
on the board. Depending on the actual device the provided clocks can be:
CLK32K_KG and CLK32K_KGAUDIO
or only one:
CLK32K_KG (TPS659039 for example)

Use separate compatible flags for the two 32K clock.
A system which needs or have only one of the 32k clock from
Palmas will need to add node(s) for each clock as separate section
in the dts file.
The two compatible property is:
"ti,palmas-clk32kg" for clk32kg clock
"ti,palmas-clk32kgaudio" for clk32kgaudio clock

Apart from the register control of the clocks - which is done via
the clock API there is a posibility to enable the external sleep
control. In this way the clock can be enabled/disabled on demand by the
user of the clock.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Reviewed-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-07-01 21:37:57 -07:00
Doug Anderson
44ff0254b8 clk: exynos5420: Remove aclk66_peric from the clock tree description
The "aclk66_peric" clock is a gate clock with a whole bunch of gates
underneath it.  This big gate isn't very useful to include in our
clock tree.  If any of the children need to be turned on then the big
gate will need to be on anyway.  ...and there are plenty of other "big
gates" that aren't described in our clock tree, some of which shut off
collections of clocks that have no relationship in the hierarchy so
are hard to model.

"aclk66_peric" is causing earlyprintk problems since it gets disabled
as part of the boot process, so let's just remove it.

Strangely (and for no good reason) this clock is exported as part of
the common clock bindings.  Remove it since there are no in-kernel
device trees using it and no reason anyone out of tree should refer to
it either.

Signed-off-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Tomasz Figa <t.figa@samsung.com>
2014-06-30 14:47:33 +02:00
Linus Torvalds
eb477e03fe Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
Pull SCSI target fixes from Nicholas Bellinger:
 "Mostly minor fixes this time around.  The highlights include:

   - iscsi-target CHAP authentication fixes to enforce explicit key
     values (Tejas Vaykole + rahul.rane)
   - fix a long-standing OOPs in target-core when a alua configfs
     attribute is accessed after port symlink has been removed.
     (Sebastian Herbszt)
   - fix a v3.10.y iscsi-target regression causing the login reject
     status class/detail to be ignored (Christoph Vu-Brugier)
   - fix a v3.10.y iscsi-target regression to avoid rejecting an
     existing ITT during Data-Out when data-direction is wrong (Santosh
     Kulkarni + Arshad Hussain)
   - fix a iscsi-target related shutdown deadlock on UP kernels (Mikulas
     Patocka)
   - fix a v3.16-rc1 build issue with vhost-scsi + !CONFIG_NET (MST)"

* git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
  iscsi-target: fix iscsit_del_np deadlock on unload
  iovec: move memcpy_from/toiovecend to lib/iovec.c
  iscsi-target: Avoid rejecting incorrect ITT for Data-Out
  tcm_loop: Fix memory leak in tcm_loop_submission_work error path
  iscsi-target: Explicily clear login response PDU in exception path
  target: Fix left-over se_lun->lun_sep pointer OOPs
  iscsi-target; Enforce 1024 byte maximum for CHAP_C key value
  iscsi-target: Convert chap_server_compute_md5 to use kstrtoul
2014-06-28 09:43:58 -07:00
Linus Torvalds
cf0d135649 sound fixes for 3.16-rc3
Here includes a few patchset for fixing mostly HD-audio issues in
 addition to a patch assuring the compress API bytes alignment and a
 fix for the die-hard existing race condition at USB-audio
 disconnection.  The volume looks big in Realtek HD-audio code, but
 it's just a translation of the fixup tables, and the actual changes
 are rather trivial.
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Merge tag 'sound-3.16-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "Here includes a few patchset for fixing mostly HD-audio issues in
  addition to a patch assuring the compress API bytes alignment and a
  fix for the die-hard existing race condition at USB-audio
  disconnection.  The volume looks big in Realtek HD-audio code, but
  it's just a translation of the fixup tables, and the actual changes
  are rather trivial"

* tag 'sound-3.16-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda - restore BCLK M/N values when resuming HSW/BDW display controller
  ALSA: usb-audio: Fix races at disconnection and PCM closing
  ALSA: hda - Adjust speaker HPF and add LED support for HP Spectre 13
  ALSA: hda - Make the pin quirk tables use the SND_HDA_PIN_QUIRK macro
  ALSA: hda - Make a SND_HDA_PIN_QUIRK macro
  ALSA: hda - Add pin quirk for Dell XPS 15
  ALSA: hda - hdmi: call overridden init on resume
  ALSA: hda - Fix usage of "model" module parameter
  ALSA: compress: fix the struct alignment to 4 bytes
2014-06-27 17:21:36 -07:00
Linus Torvalds
c163b524d2 Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
 "Exynos, i915 and msm fixes and one core fix.

  exynos:
     hdmi power off and mixer issues

  msm:
     iommu, build fixes,

  i915:
     regression races and warning fixes"

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (22 commits)
  drm/i915: vlv_prepare_pll is only needed in case of non DSI interfaces
  drm: fix NULL pointer access by wrong ioctl
  drm/exynos: enable vsync interrupt while waiting for vblank
  drm/exynos: soft reset mixer before reconfigure after power-on
  drm/exynos: allow multiple layer updates per vsync for mixer
  drm/i915: Hold the table lock whilst walking the file's idr and counting the objects in debugfs
  drm/i915: BDW: Adding Reserved PCI IDs.
  drm/i915: Only mark the ctx as initialised after a SET_CONTEXT operation
  drm/exynos: stop mixer before gating clocks during poweroff
  drm/exynos: set power state variable after enabling clocks and power
  drm/exynos: disable unused windows on apply
  drm/exynos: Fix de-registration ordering
  drm/exynos: change zero to NULL for sparse
  drm/exynos: dpi: Fix NULL pointer dereference with legacy bindings
  drm/exynos: hdmi: fix power order issue
  drm/i915: default to having backlight if VBT not available
  drm/i915: cache hw power well enabled state
  drm/msm: fix IOMMU cleanup for -EPROBE_DEFER
  drm/msm: use PAGE_ALIGNED instead of IS_ALIGNED(PAGE_SIZE)
  drm/msm/hdmi: set hdp clock rate before prepare_enable
  ...
2014-06-27 17:05:39 -07:00
Michael S. Tsirkin
ac5ccdba3a iovec: move memcpy_from/toiovecend to lib/iovec.c
ERROR: "memcpy_fromiovecend" [drivers/vhost/vhost_scsi.ko] undefined!

commit 9f977ef7b6
    vhost-scsi: Include prot_bytes into expected data transfer length
in target-pending makes drivers/vhost/scsi.c call memcpy_fromiovecend().
This function is not available when CONFIG_NET is not enabled.

socket.h already includes uio.h, so no callers need updating.

Reported-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2014-06-27 11:47:58 -07:00
Linus Torvalds
3493860c76 Merge branch 'for-linus' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
 "A small collection of fixes/changes for the current series.  This
  contains:

   - Removal of dead code from Gu Zheng.

   - Revert of two bad fixes that went in earlier in this round, marking
     things as __init that were not purely used from init.

   - A fix for blk_mq_start_hw_queue() using the __blk_mq_run_hw_queue(),
     which could place us wrongly.  Make it use the non __ variant,
     which handles cases where we are called from the wrong CPU set.
     From me.

   - A fix for drbd, which allocates discard requests without room for
     the SCSI payload.  From Lars Ellenberg.

   - A fix for user-after-free in the blkcg code from Tejun.

   - Addition of limiting gaps in SG lists, if the hardware needs it.
     This is the last pre-req patch for blk-mq to enable the full NVMe
     conversion.  Could wait until 3.17, but it's simple enough so would
     be nice to have everything we need for the NVMe port in the 3.17
     release.  From me"

* 'for-linus' of git://git.kernel.dk/linux-block:
  drbd: fix NULL pointer deref in blk_add_request_payload
  blk-mq: blk_mq_start_hw_queue() should use blk_mq_run_hw_queue()
  block: add support for limiting gaps in SG lists
  bio: remove unused macro bip_vec_idx()
  Revert "block: add __init to elv_register"
  Revert "block: add __init to blkcg_policy_register"
  blkcg: fix use-after-free in __blkg_release_rcu() by making blkcg_gq refcnt an atomic_t
  floppy: format block0 read error message properly
2014-06-26 13:06:13 -07:00
Al Viro
0b86dbf675 Fix 32-bit regression in block device read(2)
blkdev_read_iter() wants to cap the iov_iter by the amount of data
remaining to the end of device.  That's what iov_iter_truncate() is for
(trim iter->count if it's above the given limit).  So far, so good, but
the argument of iov_iter_truncate() is size_t, so on 32bit boxen (in
case of a large device) we end up with that upper limit truncated down
to 32 bits *before* comparing it with iter->count.

Easily fixed by making iov_iter_truncate() take 64bit argument - it does
the right thing after such change (we only reach the assignment in there
when the current value of iter->count is greater than the limit, i.e.
for anything that would get truncated we don't reach the assignment at
all) and that argument is not the new value of iter->count - it's an
upper limit for such.

The overhead of passing u64 is not an issue - the thing is inlined, so
callers passing size_t won't pay any penalty.

Reported-and-tested-by: Theodore Tso <tytso@mit.edu>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Tested-by: Alan Cox <gnomes@lxorguk.ukuu.org.uk>
Tested-by: Bruno Wolff III <bruno@wolff.to>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-06-26 13:02:28 -07:00
Linus Torvalds
f40ede392d Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) Fix crash in ipvs tot_stats estimator, from Julian Anastasov.

 2) Fix OOPS in nf_nat on netns removal, from Florian Westphal.

 3) Really really really fix locking issues in slip and slcan tty write
    wakeups, from Tyler Hall.

 4) Fix checksum offloading in fec driver, from Fugang Duan.

 5) Off by one in BPF instruction limit test, from Kees Cook.

 6) Need to clear all TSO capability flags when doing software TSO in
    tg3 driver, from Prashant Sreedharan.

 7) Fix memory leak in vlan_reorder_header() error path, from Li
    RongQing.

 8) Fix various bugs in xen-netfront and xen-netback multiqueue support,
    from David Vrabel and Wei Liu.

 9) Fix deadlock in cxgb4 driver, from Li RongQing.

10) Prevent double free of no-cache DST entries, from Eric Dumazet.

11) Bad csum_start handling in skb_segment() leads to crashes when
    forwarding, from Tom Herbert.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (76 commits)
  net: fix setting csum_start in skb_segment()
  ipv4: fix dst race in sk_dst_get()
  net: filter: Use kcalloc/kmalloc_array to allocate arrays
  trivial: net: filter: Change kerneldoc parameter order
  trivial: net: filter: Fix typo in comment
  net: allwinner: emac: Add missing free_irq
  cxgb4: use dev_port to identify ports
  xen-netback: bookkeep number of active queues in our own module
  tg3: Change nvram command timeout value to 50ms
  cxgb4: Not need to hold the adap_rcu_lock lock when read adap_rcu_list
  be2net: fix qnq mode detection on VFs
  of: mdio: fixup of_phy_register_fixed_link parsing of new bindings
  at86rf230: fix irq setup
  net: phy: at803x: fix coccinelle warnings
  net/mlx4_core: Fix the error flow when probing with invalid VF configuration
  tulip: Poll link status more frequently for Comet chips
  net: huawei_cdc_ncm: increase command buffer size
  drivers: net: cpsw: fix dual EMAC stall when connected to same switch
  xen-netfront: recreate queues correctly when reconnecting
  xen-netfront: fix oops when disconnected from backend
  ...
2014-06-25 21:08:24 -07:00
Eric Dumazet
f886497212 ipv4: fix dst race in sk_dst_get()
When IP route cache had been removed in linux-3.6, we broke assumption
that dst entries were all freed after rcu grace period. DST_NOCACHE
dst were supposed to be freed from dst_release(). But it appears
we want to keep such dst around, either in UDP sockets or tunnels.

In sk_dst_get() we need to make sure dst refcount is not 0
before incrementing it, or else we might end up freeing a dst
twice.

DST_NOCACHE set on a dst does not mean this dst can not be attached
to a socket or a tunnel.

Then, before actual freeing, we need to observe a rcu grace period
to make sure all other cpus can catch the fact the dst is no longer
usable.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Dormando <dormando@rydia.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-25 17:41:44 -07:00
Linus Torvalds
456febd299 ARM: SoC fixes for 3.16
A new set of bug fixes for 3.16, containing patches for seven platforms:
 
 at91:
     - drivers/misc fix for Kconfig PWM symbol
     - correction of several values in DT after conversion to CCF
     - fix at91sam9261/at91sam9261ek mistake in slow crystal vs. slow RC osc
 
 imx:
     - Use GPIO for card CD/WP on imx51-babbage and eukrea-mbimxsd51,
       because controller base CD/WP is not working in esdhc driver due to
       runtime PM support
     - A couple of random ventana gw5xxx board fixes
     - Add IMX_IPUV3_CORE back to defconfig, which gets lost when moving
       IPUv3 driver out of staging tree
     - Fix enet/fec clock selection on imx6sl
     - Fix display node on imx53-m53evk board
     - A couple of Cubox-i updates from Russell, which were omitted from
       the merge window due to dependency
 
 integrator:
     - fix an OF-related regression against 3.15
 
 mvebu:
     - mvebu (v7)
        - Fix broken SoC ID detection
        - Select ARM_CPU_SUSPEND for v7
        - Remove armada38x compatible string (no users yet)
        - Enable Dove SoC in mvebu_v7_defconfig
     - kirkwood
        - Fix phy-connection-type on GuruPlug board
 
 qcom:
     - enable gsbi driver in defconfig
     - fix section mismatch warning in serial driver
 
 samsung:
     - use WFI macro in platform_do_lowpower because exynos cpuhotplug
       includes a hardcoded WFI instruction and it causes compile error
       in Thumb-2 mode.
     - fix GIC reg sizes for exynos4 SoCs
     - remove reset timer counter value during boot and resume for mct
       to fix a big jump in printk timestamps
     - fix pm code to check cortex-A9 for another exynos SoCs
     - don't rely on firmware's secondary_cpu_start for mcpm
 
 sti:
     - Ethernet clocks were wrongly defined for STiH415/416 platforms
     - STiH416 B2020 revision E DTS file name contained uppercase, change to
       lowercase.
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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Arnd Bergmann:
 "A new set of bug fixes for 3.16, containing patches for seven
  platforms:

  at91:
    - drivers/misc fix for Kconfig PWM symbol
    - correction of several values in DT after conversion to CCF
    - fix at91sam9261/at91sam9261ek mistake in slow crystal vs. slow RC osc

  imx:
    - Use GPIO for card CD/WP on imx51-babbage and eukrea-mbimxsd51,
      because controller base CD/WP is not working in esdhc driver due to
      runtime PM support
    - A couple of random ventana gw5xxx board fixes
    - Add IMX_IPUV3_CORE back to defconfig, which gets lost when moving
      IPUv3 driver out of staging tree
    - Fix enet/fec clock selection on imx6sl
    - Fix display node on imx53-m53evk board
    - A couple of Cubox-i updates from Russell, which were omitted from
      the merge window due to dependency

  integrator:
    - fix an OF-related regression against 3.15

  mvebu:
    - mvebu (v7)
       - Fix broken SoC ID detection
       - Select ARM_CPU_SUSPEND for v7
       - Remove armada38x compatible string (no users yet)
       - Enable Dove SoC in mvebu_v7_defconfig
    - kirkwood
       - Fix phy-connection-type on GuruPlug board

  qcom:
    - enable gsbi driver in defconfig
    - fix section mismatch warning in serial driver

  samsung:
    - use WFI macro in platform_do_lowpower because exynos cpuhotplug
      includes a hardcoded WFI instruction and it causes compile error
      in Thumb-2 mode.
    - fix GIC reg sizes for exynos4 SoCs
    - remove reset timer counter value during boot and resume for mct
      to fix a big jump in printk timestamps
    - fix pm code to check cortex-A9 for another exynos SoCs
    - don't rely on firmware's secondary_cpu_start for mcpm

  sti:
    - Ethernet clocks were wrongly defined for STiH415/416 platforms
    - STiH416 B2020 revision E DTS file name contained uppercase, change to
      lowercase"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (33 commits)
  ARM: at91/dt: sam9261: remove slow RC osc
  ARM: at91/dt: define sam9261ek slow crystal frequency
  ARM: at91/dt: sam9261: correctly define mainck
  ARM: at91/dt: sam9n12: correct PLLA ICPLL and OUT values
  ARM: at91/dt: sam9x5: correct PLLA ICPLL and OUT values
  misc: atmel_pwm: fix Kconfig symbols
  ARM: integrator: fix OF-related regression
  ARM: mvebu: Fix the improper use of the compatible string armada38x using a wildcard
  ARM: dts: kirkwood: fix phy-connection-type for Guruplug
  ARM: EXYNOS: Don't rely on firmware's secondary_cpu_start for mcpm
  ARM: dts: imx51-eukrea-mbimxsd51-baseboard: unbreak esdhc.
  ARM: dts: imx51-babbage: Fix esdhc setup
  ARM: dts: mx5: Move the display out of soc {} node
  ARM: dts: mx5: Fix IPU port node placement
  ARM: mvebu: select ARM_CPU_SUSPEND for Marvell EBU v7 platforms
  ARM: mvebu: Fix broken SoC ID detection
  ARM: imx_v6_v7_defconfig: Enable CONFIG_IMX_IPUV3_CORE
  ARM: multi_v7_defconfig: Add QCOM GSBI driver
  ARM: stih41x: Rename stih416-b2020-revE.dts to stih416-b2020e.dts
  tty: serial: msm: Fix section mismatch warning
  ...
2014-06-25 12:19:01 -07:00
Linus Torvalds
b8e46d22dc This includes three patches from Oleg Nesterov. The first is a fix to a
race condition that happens between enabling/disabling syscall tracepoints
 and new process creations (the check to go into the ptrace path for a process
 can be set when it shouldn't, or not set when it should). Not a major bug
 but one that should be fixed and even applied to stable.
 
 The other two patches are cleanup/fixes that are not that critical, but
 for an -rc1 release would be nice to have. They both deal with syscall
 tracepoints.
 
 It also includes a patch to introduce a new macro for the TRACE_EVENT()
 format called __field_struct(). Originally, __field() was used to record
 any variable into a trace event, but with the addition of setting the
 "is signed" attribute, the check causes anything but a primitive variable
 to fail to compile. That is, structs and unions can't be used as they
 once were. When the "is signed" check was introduce there were only
 primitive variables being recorded. But that will change soon and it
 was reported that __field() causes build failures.
 
 To solve the __field() issue, __field_struct() is introduced to allow
 trace_events to be able to record complex types too.
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Merge tag 'trace-fixes-v3.16-rc1-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

Pull tracing cleanups and fixes from Steven Rostedt:
 "This includes three patches from Oleg Nesterov.  The first is a fix to
  a race condition that happens between enabling/disabling syscall
  tracepoints and new process creations (the check to go into the ptrace
  path for a process can be set when it shouldn't, or not set when it
  should).  Not a major bug but one that should be fixed and even
  applied to stable.

  The other two patches are cleanup/fixes that are not that critical,
  but for an -rc1 release would be nice to have.  They both deal with
  syscall tracepoints.

  It also includes a patch to introduce a new macro for the
  TRACE_EVENT() format called __field_struct().  Originally, __field()
  was used to record any variable into a trace event, but with the
  addition of setting the "is signed" attribute, the check causes
  anything but a primitive variable to fail to compile.  That is,
  structs and unions can't be used as they once were.  When the "is
  signed" check was introduce there were only primitive variables being
  recorded.  But that will change soon and it was reported that
  __field() causes build failures.

  To solve the __field() issue, __field_struct() is introduced to allow
  trace_events to be able to record complex types too"

* tag 'trace-fixes-v3.16-rc1-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  tracing: Add __field_struct macro for TRACE_EVENT()
  tracing: syscall_regfunc() should not skip kernel threads
  tracing: Change syscall_*regfunc() to check PF_KTHREAD and use for_each_process_thread()
  tracing: Fix syscall_*regfunc() vs copy_process() race
2014-06-25 05:08:09 -07:00
Jens Axboe
66cb45aa41 block: add support for limiting gaps in SG lists
Another restriction inherited for NVMe - those devices don't support
SG lists that have "gaps" in them. Gaps refers to cases where the
previous SG entry doesn't end on a page boundary. For NVMe, all SG
entries must start at offset 0 (except the first) and end on a page
boundary (except the last).

Signed-off-by: Jens Axboe <axboe@fb.com>
2014-06-24 16:22:24 -06:00
Gu Zheng
3a4b0eda8e bio: remove unused macro bip_vec_idx()
Macro bip_vec_idx() was used by bio integrity originally, but no longer
used now. So remove it.

Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2014-06-24 16:15:25 -06:00
Rodrigo Vivi
fb7023e0e2 drm/i915: BDW: Adding Reserved PCI IDs.
These PCI IDs are reserved on BSpec and can be used at any time in the future.
So let's add this now in order to avoid issues that we already faced on previous
platforms, like finding out about new ids when user reported accelaration weren't
enabled.

Cc: stable@vger.kernel.org
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2014-06-24 14:56:16 +03:00
Aaron Tomlin
ed235875e2 kernel/watchdog.c: print traces for all cpus on lockup detection
A 'softlockup' is defined as a bug that causes the kernel to loop in
kernel mode for more than a predefined period to time, without giving
other tasks a chance to run.

Currently, upon detection of this condition by the per-cpu watchdog
task, debug information (including a stack trace) is sent to the system
log.

On some occasions, we have observed that the "victim" rather than the
actual "culprit" (i.e.  the owner/holder of the contended resource) is
reported to the user.  Often this information has proven to be
insufficient to assist debugging efforts.

To avoid loss of useful debug information, for architectures which
support NMI, this patch makes it possible to improve soft lockup
reporting.  This is accomplished by issuing an NMI to each cpu to obtain
a stack trace.

If NMI is not supported we just revert back to the old method.  A sysctl
and boot-time parameter is available to toggle this feature.

[dzickus@redhat.com: add CONFIG_SMP in certain areas]
[akpm@linux-foundation.org: additional CONFIG_SMP=n optimisations]
[mq@suse.cz: fix warning]
Signed-off-by: Aaron Tomlin <atomlin@redhat.com>
Signed-off-by: Don Zickus <dzickus@redhat.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Mateusz Guzik <mguzik@redhat.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Jan Moskyto Matejka <mq@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-06-23 16:47:44 -07:00
Aaron Tomlin
f3aca3d095 nmi: provide the option to issue an NMI back trace to every cpu but current
Sometimes it is preferred not to use the trigger_all_cpu_backtrace()
routine when one wants to avoid capturing a back trace for current.  For
instance if one was previously captured recently.

This patch provides a new routine namely
trigger_allbutself_cpu_backtrace() which offers the flexibility to issue
an NMI to every cpu but current and capture a back trace accordingly.

Patch x86 and sparc to support new routine.

[dzickus@redhat.com: add stub in #else clause]
[dzickus@redhat.com: don't print message in single processor case, wrap with get/put_cpu based on Oleg's suggestion]
[sfr@canb.auug.org.au: undo C99ism]
Signed-off-by: Aaron Tomlin <atomlin@redhat.com>
Signed-off-by: Don Zickus <dzickus@redhat.com>
Acked-by: David S. Miller <davem@davemloft.net>
Cc: Mateusz Guzik <mguzik@redhat.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-06-23 16:47:44 -07:00
Petr Tesarik
b3acc56bfe kexec: save PG_head_mask in VMCOREINFO
To allow filtering of huge pages, makedumpfile must be able to identify
them in the dump.  This can be done by checking the appropriate page
flag, so communicate its value to makedumpfile through the VMCOREINFO
interface.

There's only one small catch.  Depending on how many page flags are
available on a given architecture, this bit can be called PG_head or
PG_compound.

I sent a similar patch back in 2012, but Eric Biederman did not like
using an #ifdef.  So, this time I'm adding a common symbol
(PG_head_mask) instead.

See https://lkml.org/lkml/2012/11/28/91 for the previous version.

Signed-off-by: Petr Tesarik <ptesarik@suse.cz>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
Cc: Eric Biederman <ebiederm@xmission.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Fengguang Wu <fengguang.wu@intel.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Shaohua Li <shli@kernel.org>
Cc: Alexey Kardashevskiy <aik@ozlabs.ru>
Cc: Sasha Levin <sasha.levin@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-06-23 16:47:43 -07:00
Arnd Bergmann
f340a59f38 The i.MX fixes for 3.16:
- Use GPIO for card CD/WP on imx51-babbage and eukrea-mbimxsd51,
    because controller base CD/WP is not working in esdhc driver due to
    runtime PM support
  - A couple of random ventana gw5xxx board fixes
  - Add IMX_IPUV3_CORE back to defconfig, which gets lost when moving
    IPUv3 driver out of staging tree
  - Fix enet/fec clock selection on imx6sl
  - Fix display node on imx53-m53evk board
  - A couple of Cubox-i updates from Russell, which were omitted from
    the merge window due to dependency
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Merge tag 'imx-fixes-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into fixes

Pull "i.MX fixes for 3.16" from Shawn Guo:

 - Use GPIO for card CD/WP on imx51-babbage and eukrea-mbimxsd51,
   because controller base CD/WP is not working in esdhc driver due to
   runtime PM support
 - A couple of random ventana gw5xxx board fixes
 - Add IMX_IPUV3_CORE back to defconfig, which gets lost when moving
   IPUv3 driver out of staging tree
 - Fix enet/fec clock selection on imx6sl
 - Fix display node on imx53-m53evk board
 - A couple of Cubox-i updates from Russell, which were omitted from
   the merge window due to dependency

* tag 'imx-fixes-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  ARM: dts: imx51-eukrea-mbimxsd51-baseboard: unbreak esdhc.
  ARM: dts: imx51-babbage: Fix esdhc setup
  ARM: dts: mx5: Move the display out of soc {} node
  ARM: dts: mx5: Fix IPU port node placement
  ARM: imx_v6_v7_defconfig: Enable CONFIG_IMX_IPUV3_CORE
  ARM: dts: hummingboard/cubox-i: move usb otg configuration to platform level
  ARM: dts: cubox-i: add support for PWM-driven front panel LED
  ARM: dts: imx6: ventana: correct gw52xx sgtl5000 clock source
  ARM: dts: imx6qdl-gw5xxx: Fix Linear Technology vendor prefix
  ARM: dts: imx6: ventana: fix include typo
  ARM: dts: imx6sl: correct the fec ipg clock source
  ARM: imx6sl: add missing enet clock for imx6sl
2014-06-23 14:12:48 +02:00
Vinod Koul
2da38e0c94 ALSA: compress: fix the struct alignment to 4 bytes
In 64bit systems the compiler can default align to 8bytes causing mis-match with
32bit usermode. Avoid this is future by ensuring all the structures shared with
usermode are packed and aligned to 4 bytes irrespective of arch used

[coding style fixes by tiwai]

Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-06-23 12:15:33 +02:00
Jens Axboe
e567bf7112 Revert "block: add __init to elv_register"
This reverts commit b5097e956a.

The original commit is buggy, we do use the registration functions
at runtime, for instance when loading IO schedulers through sysfs.

Reported-by: Damien Wyart <damien.wyart@gmail.com>
2014-06-22 16:34:11 -06:00
Linus Torvalds
2dfded8210 File locking related bugfixes for v3.16 (pile #2)
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Merge tag 'locks-v3.16-2' of git://git.samba.org/jlayton/linux

Pull file locking fixes from Jeff Layton:
 "File locking related bugfixes

  Nothing too earth-shattering here.  A fix for a potential regression
  due to a patch in pile #1, and the addition of a memory barrier to
  prevent a race condition between break_deleg and generic_add_lease"

* tag 'locks-v3.16-2' of git://git.samba.org/jlayton/linux:
  locks: set fl_owner for leases back to current->files
  locks: add missing memory barrier in break_deleg
2014-06-21 16:40:30 -10:00
Daniel Mack
2b8f2a28ea net: phylib: add link_change_notify callback to phy device
Add a notify callback to inform phy drivers when the core is about to
do its link adjustment. No change for drivers that do not implement
this callback.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-21 15:50:00 -07:00
Linus Torvalds
401c58fcbb Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar:
 "This is larger than usual: the main reason are the ARM symbol lookup
  speedups that came in late and were hard to resist.

  There's also a kprobes fix and various tooling fixes, plus the minimal
  re-enablement of the mmap2 support interface"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (36 commits)
  x86/kprobes: Fix build errors and blacklist context_track_user
  perf tests: Add test for closing dso objects on EMFILE error
  perf tests: Add test for caching dso file descriptors
  perf tests: Allow reuse of test_file function
  perf tests: Spawn child for each test
  perf tools: Add dso__data_* interface descriptons
  perf tools: Allow to close dso fd in case of open failure
  perf tools: Add file size check and factor dso__data_read_offset
  perf tools: Cache dso data file descriptor
  perf tools: Add global count of opened dso objects
  perf tools: Add global list of opened dso objects
  perf tools: Add data_fd into dso object
  perf tools: Separate dso data related variables
  perf tools: Cache register accesses for unwind processing
  perf record: Fix to honor user freq/interval properly
  perf timechart: Reflow documentation
  perf probe: Improve error messages in --line option
  perf probe: Improve an error message of perf probe --vars mode
  perf probe: Show error code and description in verbose mode
  perf probe: Improve error message for unknown member of data structure
  ...
2014-06-21 07:07:17 -10:00
Steven Rostedt
4d4c9cc839 tracing: Add __field_struct macro for TRACE_EVENT()
Currently the __field() macro in TRACE_EVENT is only good for primitive
values, such as integers and pointers, but it fails on complex data types
such as structures or unions. This is because the __field() macro
determines if the variable is signed or not with the test of:

  (((type)(-1)) < (type)1)

Unfortunately, that fails when type is a structure.

Since trace events should support structures as fields a new macro
is created for such a case called __field_struct() which acts exactly
the same as __field() does but it does not do the signed type check
and just uses a constant false for that answer.

Cc: Tony Luck <tony.luck@gmail.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2014-06-21 00:18:42 -04:00
Oleg Nesterov
4af4206be2 tracing: Fix syscall_*regfunc() vs copy_process() race
syscall_regfunc() and syscall_unregfunc() should set/clear
TIF_SYSCALL_TRACEPOINT system-wide, but do_each_thread() can race
with copy_process() and miss the new child which was not added to
the process/thread lists yet.

Change copy_process() to update the child's TIF_SYSCALL_TRACEPOINT
under tasklist.

Link: http://lkml.kernel.org/p/20140413185854.GB20668@redhat.com

Cc: stable@vger.kernel.org # 2.6.33
Fixes: a871bd33a6 "tracing: Add syscall tracepoints"
Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2014-06-21 00:15:12 -04:00
Linus Torvalds
3c8fb50445 ACPI and power management updates for 3.16-rc2
- Fix for an ia64 regression introduced during the 3.11 cycle by a
    commit that modified the hardware initialization ordering and made
    device discovery fail on some systems.
 
  - Fix for a build problem on systems where the cpufreq-cpu0 driver
    is built-in and the cpu-thermal driver is modular from Arnd Bergmann.
 
  - Fix for a recently introduced computational mistake in the
    intel_pstate driver that leads to excessive rounding errors from
    Doug Smythies.
 
  - Fix for a failure code path in cpufreq_update_policy() that fails
    to unlock the locks acquired previously from Aaron Plattner.
 
  - Fix for the cpuidle mvebu driver to use shorter state names which
    will prevent the sysfs interface from returning mangled strings.
    From Gregory Clement.
 
  - ACPI LPSS driver fix to make sure that the I2C controllers
    included in BayTrail SoCs are not held in the reset state while
    they are being probed from Mika Westerberg.
 
  - New kernel command line arguments making it possible to build
    kernel images with hibernation and kASLR included at the same
    time and to select which of them will be used via the command
    line (they are still functionally mutually exclusive, though).
    From Kees Cook.
 
  - ACPI battery driver quirk for Acer Aspire V5-573G that fails
    to send battery status change notifications timely from
    Alexander Mezin.
 
  - Two ACPI core cleanups from Christoph Jaeger and Fabian Frederick.
 
 /
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Merge tag 'pm+acpi-3.16-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI and power management fixes from Rafael Wysocki:
 "These are fixes mostly (ia64 regression related to the ACPI
  enumeration of devices, cpufreq regressions, fix for I2C controllers
  included in Intel SoCs, mvebu cpuidle driver fix related to sysfs)
  plus additional kernel command line arguments from Kees to make it
  possible to build kernel images with hibernation and the kernel
  address space randomization included simultaneously, a new ACPI
  battery driver quirk for a system with a broken BIOS and a couple of
  ACPI core cleanups.

  Specifics:

   - Fix for an ia64 regression introduced during the 3.11 cycle by a
     commit that modified the hardware initialization ordering and made
     device discovery fail on some systems.

   - Fix for a build problem on systems where the cpufreq-cpu0 driver is
     built-in and the cpu-thermal driver is modular from Arnd Bergmann.

   - Fix for a recently introduced computational mistake in the
     intel_pstate driver that leads to excessive rounding errors from
     Doug Smythies.

   - Fix for a failure code path in cpufreq_update_policy() that fails
     to unlock the locks acquired previously from Aaron Plattner.

   - Fix for the cpuidle mvebu driver to use shorter state names which
     will prevent the sysfs interface from returning mangled strings.
     From Gregory Clement.

   - ACPI LPSS driver fix to make sure that the I2C controllers included
     in BayTrail SoCs are not held in the reset state while they are
     being probed from Mika Westerberg.

   - New kernel command line arguments making it possible to build
     kernel images with hibernation and kASLR included at the same time
     and to select which of them will be used via the command line (they
     are still functionally mutually exclusive, though).  From Kees
     Cook.

   - ACPI battery driver quirk for Acer Aspire V5-573G that fails to
     send battery status change notifications timely from Alexander
     Mezin.

   - Two ACPI core cleanups from Christoph Jaeger and Fabian Frederick"

* tag 'pm+acpi-3.16-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  cpuidle: mvebu: Fix the name of the states
  cpufreq: unlock when failing cpufreq_update_policy()
  intel_pstate: Correct rounding in busy calculation
  ACPI: use kstrto*() instead of simple_strto*()
  ACPI / processor replace __attribute__((packed)) by __packed
  ACPI / battery: add quirk for Acer Aspire V5-573G
  ACPI / battery: use callback for setting up quirks
  ACPI / LPSS: Take I2C host controllers out of reset
  x86, kaslr: boot-time selectable with hibernation
  PM / hibernate: introduce "nohibernate" boot parameter
  cpufreq: cpufreq-cpu0: fix CPU_THERMAL dependency
  ACPI / ia64 / sba_iommu: Restore the working initialization ordering
2014-06-19 18:58:57 -10:00
Linus Torvalds
4ef61076f8 sound fixes for 3.16-rc2
The significant part here is a few security fixes for ALSA core
 control API by Lars.  Besides that, there are a few fixes for ASoC
 sigmadsp (again by Lars) for building properly, and small fixes for
 ASoC rsnd, MMP, PXA and FSL, in addition to a fix for bogus WARNING in
 i915/HD-audio binding.
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Merge tag 'sound-3.16-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "The significant part here is a few security fixes for ALSA core
  control API by Lars.  Besides that, there are a few fixes for ASoC
  sigmadsp (again by Lars) for building properly, and small fixes for
  ASoC rsnd, MMP, PXA and FSL, in addition to a fix for bogus WARNING in
  i915/HD-audio binding"

* tag 'sound-3.16-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: control: Make sure that id->index does not overflow
  ALSA: control: Handle numid overflow
  ALSA: control: Don't access controls outside of protected regions
  ALSA: control: Fix replacing user controls
  ALSA: control: Protect user controls against concurrent access
  drm/i915, HD-audio: Don't continue probing when nomodeset is given
  ASoC: fsl: Fix build problem
  ASoC: rsnd: fixup index of src/dst mod when capture
  ASoC: fsl_spdif: Fix integer overflow when calculating divisors
  ASoC: fsl_spdif: Fix incorrect usage of regmap_read()
  ASoC: dapm: Make sure register value is in sync with DAPM kcontrol state
  ASoC: sigmadsp: Split regmap and I2C support into separate modules
  ASoC: MMP audio needs sram support
  ASoC: pxa: add I2C dependencies as needed
2014-06-19 18:49:37 -10:00
Linus Torvalds
f1d702487b Merge branch 'for-linus' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
 "A smaller collection of fixes for the block core that would be nice to
  have in -rc2.  This pull request contains:

   - Fixes for races in the wait/wakeup logic used in blk-mq from
     Alexander.  No issues have been observed, but it is definitely a
     bit flakey currently.  Alternatively, we may drop the cyclic
     wakeups going forward, but that needs more testing.

   - Some cleanups from Christoph.

   - Fix for an oops in null_blk if queue_mode=1 and softirq completions
     are used.  From me.

   - A fix for a regression caused by the chunk size setting.  It
     inadvertently used max_hw_sectors instead of max_sectors, which is
     incorrect, and causes hangs on btrfs multi-disk setups (where hw
     sectors apparently isn't set).  From me.

   - Removal of WQ_POWER_EFFICIENT in the kblockd creation.  This was a
     recent addition as well, but it actually breaks blk-mq which relies
     on strict scheduling.  If the workqueue power_efficient mode is
     turned on, this breaks blk-mq.  From Matias.

   - null_blk module parameter description fix from Mike"

* 'for-linus' of git://git.kernel.dk/linux-block:
  blk-mq: bitmap tag: fix races in bt_get() function
  blk-mq: bitmap tag: fix race on blk_mq_bitmap_tags::wake_cnt
  blk-mq: bitmap tag: fix races on shared ::wake_index fields
  block: blk_max_size_offset() should check ->max_sectors
  null_blk: fix softirq completions for queue_mode == 1
  blk-mq: merge blk_mq_drain_queue and __blk_mq_drain_queue
  blk-mq: properly drain stopped queues
  block: remove WQ_POWER_EFFICIENT from kblockd
  null_blk: fix name and description of 'queue_mode' module parameter
  block: remove elv_abort_queue and blk_abort_flushes
2014-06-19 17:56:43 -10:00
Linus Torvalds
c4222e4635 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next
Pull sparc fixes from David Miller:
 "Sparc sparse fixes from Sam Ravnborg"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next: (67 commits)
  sparc64: fix sparse warnings in int_64.c
  sparc64: fix sparse warning in ftrace.c
  sparc64: fix sparse warning in kprobes.c
  sparc64: fix sparse warning in kgdb_64.c
  sparc64: fix sparse warnings in compat_audit.c
  sparc64: fix sparse warnings in init_64.c
  sparc64: fix sparse warnings in aes_glue.c
  sparc: fix sparse warnings in smp_32.c + smp_64.c
  sparc64: fix sparse warnings in perf_event.c
  sparc64: fix sparse warnings in kprobes.c
  sparc64: fix sparse warning in tsb.c
  sparc64: clean up compat_sigset_t.seta handling
  sparc64: fix sparse "Should it be static?" warnings in signal32.c
  sparc64: fix sparse warnings in sys_sparc32.c
  sparc64: fix sparse warning in pci.c
  sparc64: fix sparse warnings in smp_64.c
  sparc64: fix sparse warning in prom_64.c
  sparc64: fix sparse warning in btext.c
  sparc64: fix sparse warnings in sys_sparc_64.c + unaligned_64.c
  sparc64: fix sparse warning in process_64.c
  ...

Conflicts:
	arch/sparc/include/asm/pgtable_64.h
2014-06-19 07:50:07 -10:00
Rafael J. Wysocki
639bb92a1f Merge branch 'pm-sleep'
* pm-sleep:
  x86, kaslr: boot-time selectable with hibernation
  PM / hibernate: introduce "nohibernate" boot parameter
2014-06-19 14:41:11 +02:00
Takashi Iwai
8d42fda9ea Merge branch 'topic/core-vuln-fixes' into for-linus 2014-06-18 16:38:45 +02:00
Lars-Peter Clausen
07f4d9d74a ALSA: control: Protect user controls against concurrent access
The user-control put and get handlers as well as the tlv do not protect against
concurrent access from multiple threads. Since the state of the control is not
updated atomically it is possible that either two write operations or a write
and a read operation race against each other. Both can lead to arbitrary memory
disclosure. This patch introduces a new lock that protects user-controls from
concurrent access. Since applications typically access controls sequentially
than in parallel a single lock per card should be fine.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Jaroslav Kysela <perex@perex.cz>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-06-18 15:12:33 +02:00
Alexander Gordeev
8537b12034 blk-mq: bitmap tag: fix races on shared ::wake_index fields
Fix racy updates of shared blk_mq_bitmap_tags::wake_index
and blk_mq_hw_ctx::wake_index fields.

Cc: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2014-06-17 22:12:35 -07:00
Jens Axboe
736ed4de76 block: blk_max_size_offset() should check ->max_sectors
Commit 762380ad93 inadvertently changed a check for max_sectors
to max_hw_sectors. Revert that part, so we still compare against
max_sectors.

Signed-off-by: Jens Axboe <axboe@fb.com>
2014-06-17 22:12:02 -07:00
Peter Griffin
9796853e90 ARM: STi: DT: Properly define sti-ethclk & stmmaceth for stih415/6
This patch fixes two problems: -

1) The device tree isn't currently providing sti-ethclk which is
required by the dwmac glue code to correctly configure the ethernet
PHY clock speed.

This means depending on what the bootloader/jtag has
configured this clock to, and what switch/hub the board is plugged
into you most likely will NOT successfully negotiate a ethernet link.

2) The stmmaceth clock was associated with the wrong clock. It was
referencing the PHY clock rather than the interconnect clock which
clocks the IP.

This patch also brings us closer to not having to boot the upstream
kernel with the clk_ignore_unused parameter.

Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Maxime Coquelin <maxime.coquelin@st.com>
2014-06-17 16:55:17 +02:00
Fugang Duan
4ca2ad5555 ARM: imx6sl: add missing enet clock for imx6sl
There's a enet clock gate missing in clock tree, thus add it.

Signed-off-by: Fugang Duan <B38611@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-06-17 21:11:18 +08:00
Fabian Frederick
92c4d2ad3c ACPI / processor replace __attribute__((packed)) by __packed
This patch fixes checkpatch warnings:

"WARNING: __packed is preferred over __attribute__((packed))"

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-06-17 14:00:15 +02:00
Kees Cook
a6e15a3904 PM / hibernate: introduce "nohibernate" boot parameter
To support using kernel features that are not compatible with hibernation,
this creates the "nohibernate" kernel boot parameter to disable both
hibernation and resume. This allows hibernation support to be a boot-time
choice instead of only a compile-time choice.

Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-06-16 23:29:39 +02:00
Mark Brown
c3313b0ce8 Merge remote-tracking branch 'regulator/fix/core' into regulator-linus 2014-06-16 16:05:56 +01:00
Pablo Neira Ayuso
a0a7379e16 netfilter: nf_tables: use u32 for chain use counter
Since 4fefee5 ("netfilter: nf_tables: allow to delete several objects
from a batch"), every new rule bumps the chain use counter. However,
this is limited to 16 bits, which means that it will overrun after
2^16 rules.

Use a u32 chain counter and check for overflows (just like we do for
table objects).

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2014-06-16 13:07:44 +02:00
Takashi Iwai
74b0c2d75f drm/i915, HD-audio: Don't continue probing when nomodeset is given
When a machine is booted with nomodeset option, i915 driver skips the
whole initialization.  Meanwhile, HD-audio tries to bind wth i915 just
by request_symbol() without knowing that the initialization was
skipped, and eventually it hits WARN_ON() in i915_request_power_well()
and i915_release_power_well() wrongly but still continues probing,
even though it doesn't work at all.

In this patch, both functions are changed to return an error in case
of uninitialized state instead of WARN_ON(), so that HD-audio driver
can give up HDMI controller initialization at the right time.

Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: <stable@vger.kernel.org> [3.15]
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-06-16 10:34:06 +02:00
Linus Torvalds
a9be22425e Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) Fix checksumming regressions, from Tom Herbert.

 2) Undo unintentional permissions changes for SCTP rto_alpha and
    rto_beta sysfs knobs, from Denial Borkmann.

 3) VXLAN, like other IP tunnels, should advertize it's encapsulation
    size using dev->needed_headroom instead of dev->hard_header_len.
    From Cong Wang.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
  net: sctp: fix permissions for rto_alpha and rto_beta knobs
  vxlan: Checksum fixes
  net: add skb_pop_rcv_encapsulation
  udp: call __skb_checksum_complete when doing full checksum
  net: Fix save software checksum complete
  net: Fix GSO constants to match NETIF flags
  udp: ipv4: do not waste time in __udp4_lib_mcast_demux_lookup
  vxlan: use dev->needed_headroom instead of dev->hard_header_len
  MAINTAINERS: update cxgb4 maintainer
2014-06-15 16:37:03 -10:00
Linus Torvalds
dd1845af24 This pull request contains the second half the of the clk changes for
3.16. They are simply fixes and code refactoring for the OMAP clock
 drivers. The sunxi clock driver changes include splitting out the one
 mega-driver into several smaller pieces and adding support for the A31
 SoC clocks.
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Merge tag 'clk-for-linus-3.16-part2' of git://git.linaro.org/people/mike.turquette/linux

Pull more clock framework updates from Mike Turquette:
 "This contains the second half the of the clk changes for 3.16.

  They are simply fixes and code refactoring for the OMAP clock drivers.
  The sunxi clock driver changes include splitting out the one
  mega-driver into several smaller pieces and adding support for the A31
  SoC clocks"

* tag 'clk-for-linus-3.16-part2' of git://git.linaro.org/people/mike.turquette/linux: (25 commits)
  clk: sunxi: document PRCM clock compatible strings
  clk: sunxi: add PRCM (Power/Reset/Clock Management) clks support
  clk: sun6i: Protect SDRAM gating bit
  clk: sun6i: Protect CPU clock
  clk: sunxi: Rework clock protection code
  clk: sunxi: Move the GMAC clock to a file of its own
  clk: sunxi: Move the 24M oscillator to a file of its own
  clk: sunxi: Remove calls to clk_put
  clk: sunxi: document new A31 USB clock compatible
  clk: sunxi: Implement A31 USB clock
  ARM: dts: OMAP5/DRA7: use omap5-mpu-dpll-clock capable of dealing with higher frequencies
  CLK: TI: dpll: support OMAP5 MPU DPLL that need special handling for higher frequencies
  ARM: OMAP5+: dpll: support Duty Cycle Correction(DCC)
  CLK: TI: clk-54xx: Set the rate for dpll_abe_m2x2_ck
  CLK: TI: Driver for DRA7 ATL (Audio Tracking Logic)
  dt:/bindings: DRA7 ATL (Audio Tracking Logic) clock bindings
  ARM: dts: dra7xx-clocks: Correct name for atl clkin3 clock
  CLK: TI: gate: add composite interface clock to OMAP2 only build
  ARM: OMAP2: clock: add DT boot support for cpufreq_ck
  CLK: TI: OMAP2: add clock init support
  ...
2014-06-15 16:02:20 -10:00