Commit Graph

311468 Commits

Author SHA1 Message Date
Michael Neuling
bc6dc752f3 powerpc/pseries: Fix software invalidate TCE
The following added support for powernv but broke pseries/BML:
 1f1616e powerpc/powernv: Add TCE SW invalidation support

TCE_PCI_SW_INVAL was split into FREE and CREATE flags but the tests in
the pseries code were not updated to reflect this.

Signed-off-by: Michael Neuling <mikey@neuling.org>
cc: stable@kernel.org [v3.3+]
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-06-29 14:35:37 +10:00
Anton Blanchard
0b17ba7258 powerpc: check_and_cede_processor() never cedes
Commit f948501b36 ("Make hard_irq_disable() actually hard-disable
interrupts") caused check_and_cede_processor to stop working.
->irq_happened will never be zero right after a hard_irq_disable
so the compiler removes the call to cede_processor completely.

The bug was introduced back in the lazy interrupt handling rework
of 3.4 but was hidden until recently because hard_irq_disable did
nothing.

This issue will eventually appear in 3.4 stable since the
hard_irq_disable fix is marked stable, so mark this one for stable
too.

Signed-off-by: Anton Blanchard <anton@samba.org>
Cc: stable@vger.kernel.org
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-06-29 14:35:37 +10:00
Steven Rostedt
2d773aa481 powerpc/ftrace: Do not trace restore_interrupts()
As I was adding code that affects all archs, I started testing function
tracer against PPC64 and found that it currently locks up with 3.4
kernel. I figured it was due to tracing a function that shouldn't be, so
I went through the following process to bisect to find the culprit:

 cat /debug/tracing/available_filter_functions > t
 num=`wc -l t`
 sed -ne "1,${num}p" t > t1
 let num=num+1
 sed -ne "${num},$p" t > t2
 cat t1 > /debug/tracing/set_ftrace_filter
 echo function /debug/tracing/current_tracer
 <failed? bisect t1, if not bisect t2>

It finally came down to this function: restore_interrupts()

I'm not sure why this locks up the system. It just seems to prevent
scheduling from occurring. Interrupts seem to still work, as I can ping
the box. But all user processes freeze.

When restore_interrupts() is not traced, function tracing works fine.

Cc: stable@kernel.org
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-06-29 14:35:36 +10:00
Li Zhong
2cb387ae75 powerpc: Fix Section mismatch warnings in prom_init.c
This patches tries to fix a couple of Section mismatch warnings like
following one:

WARNING: arch/powerpc/kernel/built-in.o(.text+0x2923c): Section mismatch
in reference from the function .prom_query_opal() to the
function .init.text:.call_prom()
The function .prom_query_opal() references
the function __init .call_prom().
This is often because .prom_query_opal lacks a __init
annotation or the annotation of .call_prom is wrong.

Signed-off-by: Li Zhong <zhong@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-06-29 14:35:36 +10:00
Tiejun Chen
c58ce2b1e3 ppc64: fix missing to check all bits of _TIF_USER_WORK_MASK in preempt
In entry_64.S version of ret_from_except_lite, you'll notice that
in the !preempt case, after we've checked MSR_PR we test for any
TIF flag in _TIF_USER_WORK_MASK to decide whether to go to do_work
or not. However, in the preempt case, we do a convoluted trick to
test SIGPENDING only if PR was set and always test NEED_RESCHED ...
but we forget to test any other bit of _TIF_USER_WORK_MASK !!! So
that means that with preempt, we completely fail to test for things
like single step, syscall tracing, etc...

This should be fixed as the following path:

 - Test PR. If not set, go to resume_kernel, else continue.

 - If go resume_kernel, to do that original do_work.

 - If else, then always test for _TIF_USER_WORK_MASK to decide to do
that original user_work, else restore directly.

Signed-off-by: Tiejun Chen <tiejun.chen@windriver.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-06-29 14:35:35 +10:00
Michael Neuling
82b2521d25 powerpc: Fix uninitialised error in numa.c
chroma_defconfig currently gives me this with gcc 4.6:
  arch/powerpc/mm/numa.c:638:13: error: 'dm' may be used uninitialized in this function [-Werror=uninitialized]

It's a bogus warning/error since of_get_drconf_memory() only writes it
anyway.

Signed-off-by: Michael Neuling <mikey@neuling.org>
cc: <stable@kernel.org> [v3.3+]
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-06-29 14:35:35 +10:00
Michael Ellerman
7784655acc powerpc: Fix BPF_JIT code to link with multiple TOCs
If the kernel is big enough (eg. allyesconfig), the linker may need to
switch TOCs when calling from the BPF JIT code out to the external
helpers (skb_copy_bits() & bpf_internal_load_pointer_neg_helper()).

In order to do that we need to leave space after the bl for the linker
to insert a reload of our TOC pointer.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Acked-by: Matt Evans <matt@ozlabs.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-06-29 14:35:34 +10:00
Linus Torvalds
9acc7bde23 hwmon changes for 3.5-rc5:
e-mail address updates
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Merge tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon changes from Guenter Roeck:
 "Just e-mail address updates"

* tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: Update my e-mail address
  hwmon: (applesmc) correct email address for Jesper Juhl
2012-06-28 12:38:51 -07:00
Linus Torvalds
ccce27c0fe Merge git://www.linux-watchdog.org/linux-watchdog
Pull watchdog fixes from Wim Van Sebroeck:
 "This fixes:
   - the WDIOC_GETSTATUS return value
   - the unregister of all NMI events on exit
   - the loading of the iTCO_wdt driver after the conversion to the
     lpc_ich mfd model."

* git://www.linux-watchdog.org/linux-watchdog:
  watchdog: core: fix WDIOC_GETSTATUS return value
  watchdog: hpwdt: Unregister NMI events on exit.
  watchdog: iTCO_wdt: add platform driver module alias
2012-06-28 11:51:19 -07:00
Linus Torvalds
221d3ebf3a Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull UDF fixes from Jan Kara:
 "Make UDF more robust in presence of corrupted filesystem"

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
  udf: Fortify loading of sparing table
  udf: Avoid run away loop when partition table length is corrupted
  udf: Use 'ret' instead of abusing 'i' in udf_load_logicalvol()
2012-06-28 11:43:45 -07:00
Linus Torvalds
9a7c6b73c4 Fix the debugfs regression - we never enable it because incorrect
'IS_ENABLED()' macro usage: should be 'IS_ENABLED(CONFIG_DEBUG_FS)',
 but we had 'IS_ENABLED(DEBUG_FS)'. Also fix incorrect assertion.
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Merge tag 'upstream-3.5-rc5' of git://git.infradead.org/linux-ubifs

Pull ubi/ubifs fixes from Artem Bityutskiy:
 "Fix the debugfs regression - we never enable it because incorrect
  'IS_ENABLED()' macro usage: should be 'IS_ENABLED(CONFIG_DEBUG_FS)',
  but we had 'IS_ENABLED(DEBUG_FS)'.  Also fix incorrect assertion."

* tag 'upstream-3.5-rc5' of git://git.infradead.org/linux-ubifs:
  UBI: correct usage of IS_ENABLED()
  UBIFS: correct usage of IS_ENABLED()
  UBIFS: fix assertion
2012-06-28 11:41:43 -07:00
Wim Van Sebroeck
8b9468d496 watchdog: core: fix WDIOC_GETSTATUS return value
In commit 7a87982420 we added
a wrapper for the WDIOC_GETSTATUS ioctl call. The code results
however in a different behaviour: it returns an error if the
driver doesn't support the status operation. This is not
according to the API that says that when we don't support
the status operation, that we just should return a 0 value.
Only when the device isn't there anymore, we should return an
error.

Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-06-28 20:40:56 +02:00
Mingarelli, Thomas
a089361cf5 watchdog: hpwdt: Unregister NMI events on exit.
This patch is to unregister for NMI events upon exit. Also we are now
making the default setting for allow_kdump enabled.

Signed-off-by: Thomas Mingarelli <thomas.mingarelli@hp.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-06-28 20:40:31 +02:00
Jan Beulich
e5de32e3ec watchdog: iTCO_wdt: add platform driver module alias
The recent conversion of iTCO_wdt resulted in the driver no longer
getting loaded automatically, since it no longer has a
MODULE_DEVICE_TABLE() included. As the lpc_ich driver now creates a
platform device, auto-loading can easily be done by having a respective
module alias in place.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Cc: Aaron Sierra <asierra@xes-inc.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-06-28 20:40:10 +02:00
Linus Torvalds
4a9c46978d Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
 "Nearly all intel, one missing license header in nouveau, nothing
  majorly earth shattering."

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  Revert "drm/i915: allow PCH PWM override on IVB"
  drm/nouveau: add license header to prime.
  drm/i915: Fix eDP blank screen after S3 resume on HP desktops
  drm/i915: rip out the PM_IIR WARN
2012-06-28 11:26:42 -07:00
Linus Torvalds
ef726227e7 SuperH fixes for 3.5-rc5
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Merge tag 'sh-for-linus' of git://github.com/pmundt/linux-sh

Pull SuperH fixes from Paul Mundt.

* tag 'sh-for-linus' of git://github.com/pmundt/linux-sh:
  sh: Convert sh_clk_mstp32_register to sh_clk_mstp_register
  sh: kfr2r09: fix compile breakage
2012-06-28 11:22:25 -07:00
Linus Torvalds
f3747e2f2c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking update from David Miller:

 1) Pairing and deadlock fixes in bluetooth from Johan Hedberg.

 2) Add device IDs for AR3011 and AR3012 bluetooth chips.  From
    Giancarlo Formicuccia and Marek Vasut.

 3) Fix wireless regulatory deadlock, from Eliad Peller.

 4) Fix full TX ring panic in bnx2x driver, from Eric Dumazet.

 5) Revert the two commits that added skb_orphan_try(), it causes
    erratic bonding behavior with UDP clients and the gains it used to
    give are mostly no longer happening due to how BQL works.  From Eric
    Dumazet.

 6) It took two tries, but Thomas Graf fixed a problem wherein we
    registered ipv6 routing procfs files before their backend data were
    initialized properly.

 7) Fix max GSO size setting in be2net, from Sarveshwar Bandi.

 8) PHY device id mask is wrong for KSZ9021 and KS8001 chips, fix from
    Jason Wang.

 9) Fix use of stale SKB data pointer after skb_linearize() call in
    batman-adv, from Antonio Quartulli.

10) Fix memory leak in IXGBE due to missing __GFP_COMP, from Alexander
    Duyck.

11) Fix probing of Gobi devices in qmi_wwan usbnet driver, from Bjørn
    Mork.

12) Fix suspend/resume and open failure handling in usbnet from Ming
    Lei.

13) Attempt to fix device r8169 hangs for certain chips, from Francois
    Romieu.

14) Fix advancement of RX dirty pointer in some situations in sh_eth
    driver, from Yoshihiro Shimoda.

15) Attempt to fix restart of IPV6 routing table dumps when there is an
    intervening table update.  From Eric Dumazet.

16) Respect security_inet_conn_request() return value in ipv6 TCP.  From
    Neal Cardwell.

17) Add another iPAD device ID to ipheth driver, from Davide Gerhard.

18) Fix access to freed SKB in l2tp_eth_dev_xmit(), and fix l2tp lockdep
    splats, from Eric Dumazet.

19) Make sure all bridge devices, regardless of whether they were
    created via netlink or ioctls, have their rtnetlink ops hooked up.
    From Thomas Graf and Stephen Hemminger.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (81 commits)
  9p: fix min_t() casting in p9pdu_vwritef()
  can: flexcan: use be32_to_cpup to handle the value of dt entry
  xen/netfront: teardown the device before unregistering it.
  bridge: Assign rtnl_link_ops to bridge devices created via ioctl (v2)
  vhost: use USER_DS in vhost_worker thread
  ixgbe: Do not pad FCoE frames as this can cause issues with FCoE DDP
  net: l2tp_eth: use LLTX to avoid LOCKDEP splats
  mac802154: add missed braces
  net: l2tp_eth: fix l2tp_eth_dev_xmit race
  net/mlx4_en: Release QP range in free_resources
  net/mlx4: Use single completion vector after NOP failure
  net/mlx4_en: Set correct port parameters during device initialization
  ipheth: add support for iPad
  caif-hsi: Add missing return in error path
  caif-hsi: Bugfix - Piggyback'ed embedded CAIF frame lost
  caif: Clear shutdown mask to zero at reconnect.
  tcp: heed result of security_inet_conn_request() in tcp_v6_conn_request()
  ipv6: fib: fix fib dump restart
  batman-adv: fix race condition in TT full-table replacement
  batman-adv: only drop packets of known wifi clients
  ...
2012-06-28 11:20:31 -07:00
Jan Kara
1df2ae31c7 udf: Fortify loading of sparing table
Add sanity checks when loading sparing table from disk to avoid accessing
unallocated memory or writing to it.

Signed-off-by: Jan Kara <jack@suse.cz>
2012-06-28 19:31:09 +02:00
Jan Kara
adee11b208 udf: Avoid run away loop when partition table length is corrupted
Check provided length of partition table so that (possibly maliciously)
corrupted partition table cannot cause accessing data beyond current buffer.

Signed-off-by: Jan Kara <jack@suse.cz>
2012-06-28 19:30:58 +02:00
Jan Kara
cb14d340ef udf: Use 'ret' instead of abusing 'i' in udf_load_logicalvol()
Signed-off-by: Jan Kara <jack@suse.cz>
2012-06-28 19:30:40 +02:00
Paul Mundt
e9bcd470d8 Merge branches 'sh/urgent' and 'sh/trivial' into sh-fixes-for-linus 2012-06-28 16:46:13 +09:00
Nobuhiro Iwamatsu
ad3337cb38 sh: Convert sh_clk_mstp32_register to sh_clk_mstp_register
sh_clk_mstp32_register is deprecated. This convert to sh_clk_mstp_register.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-06-28 16:45:34 +09:00
Guennadi Liakhovetski
bc404e9128 sh: kfr2r09: fix compile breakage
Fix compile breakage caused by

commit aa82f9fcd0
Author: Paul Mundt <lethal@linux-sh.org>

    sh: kfr2r09 evt2irq migration.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-06-28 16:35:40 +09:00
David S. Miller
a969dd139c Merge branch 'for-davem' of git://gitorious.org/linux-can/linux-can
Marc Kleine-Budde says:

====================
here's a patch intended for v3.5, targeting net/master. Hui Wang has
found and fixed an endianness problem in the device tree handling in
the flexcan driver.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-27 15:27:24 -07:00
Dan Carpenter
d31bb4f062 9p: fix min_t() casting in p9pdu_vwritef()
I don't think we're actually likely to hit this limit but if we do
then the comparison should be done as size_t.  The original code
is equivalent to:
        len = strlen(sptr) % USHRT_MAX;

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-27 15:26:24 -07:00
Linus Torvalds
47b514cd47 USB fixes for 3.5-rc5
Here are some small USB gadget bugfixes, and a few new USB device ids added to
 some drivers for the 3.5-rc5 release.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-3.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB fixes from Greg Kroah-Hartman:
 "Here are some small USB gadget bugfixes, and a few new USB device ids
  added to some drivers for the 3.5-rc5 release.

  Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"

* tag 'usb-3.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  USB: CP210x Add 10 Device IDs
  USB: option: Add USB ID for Novatel Ovation MC551
  usb: phy: Fix Kconfig dependency for Phy drivers
  usb-storage: revert commit afff07e61a (Add 090c:1000 to unusal-devs)
  SCSI & usb-storage: add try_rc_10_first flag
  usb: musb: host: release dma channels if no active io
  usb: gadget: lpc32xx_udc: fix build error with debugfs enabled
  usb: otg: twl6030-usb: Fix twl writes
  USB: option: add id for Cellient MEN-200
  usb: dwc3: fix giveback of queued request in ep_dequeue
  usb: gadget: Complete fsl qe/udc driver conversion
2012-06-27 12:54:05 -07:00
Linus Torvalds
2b25679453 Sound fixes for 3.5-rc5
Here you find quite a few changes for HD-audio and a copule of quirk
 additions for USB-audio.  All reasonably small and/or trivial.
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Merge tag 'sound-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "Here you find quite a few changes for HD-audio and a copule of quirk
  additions for USB-audio.  All reasonably small and/or trivial."

* tag 'sound-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda - Fix power-map regression for HP dv6 & co
  ALSA: hda - Initialize caches at codec reconfiguration
  ALSA: hda - Fix memory leaks at module unload
  ALSA: hda - Fix memory leaks in Realtek & Conexant codec parsers
  ALSA: hda - Add Realtek ALC280 codec support
  ALSA: hda - Remove obsoleted CONFIG_SND_HDA_ENABLE_REALTEK_QUIRKS
  ASoC: wm8994: remove duplicate code
  ALSA: usb-audio: add BOSS GT-100 support
  ALSA: HDA: Add inverted internal mic quirk for Lenovo S205
  ALSA: hda - Fix ALC272X codec detection
  ALSA: snd_usb_audio: ignore ctrl errors on QuickCam Pro for Notebooks
  ALSA: snd_usb_audio: ignore ctrl errors on QuickCam E3500
2012-06-27 12:50:28 -07:00
Linus Torvalds
6ebfbe9a1a Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu
Pull a m68knommu fix from Greg Ungerer:
 "It contains a single fix for breakage using the Freescale FEC eth
  driver on ColdFire CPUs."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
  m68knommu: define a local devm_clk_get() function
2012-06-27 12:48:39 -07:00
Linus Torvalds
843760c58e MMC fixes for 3.5-rc5:
- omap_hsmmc: Using AUTO_CMD12 (enabled by default in 3.5-rc1) has
    been found to cause data corruption on the BeagleBoard, but no
    other OMAP boards so far.  Revert the patch until there's a root
    cause explanation that makes sense, at which point we might
    decide to use a blacklist or whitelist.
  - mmc_block: Fix incorrect data timeouts for the case of multiblock
    (ACMD22) writes for block-addressed cards.
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Merge tag 'mmc-fixes-for-3.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc

Pull MMC fixes from Chris Ball:

 - omap_hsmmc: Using AUTO_CMD12 (enabled by default in 3.5-rc1) has
   been found to cause data corruption on the BeagleBoard, but no
   other OMAP boards so far.  Revert the patch until there's a root
   cause explanation that makes sense, at which point we might
   decide to use a blacklist or whitelist.

 - mmc_block: Fix incorrect data timeouts for the case of multiblock
   (ACMD22) writes for block-addressed cards.

* tag 'mmc-fixes-for-3.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc:
  Revert "mmc: omap_hsmmc: Enable Auto CMD12"
  mmc: block: fix the data timeout issue with ACMD22
2012-06-27 12:48:07 -07:00
Linus Torvalds
e04fb0202b clk-fixes-for-linus contains three NULL pointer fixes and two device
regression fixups.  Two NULL pointer dereferences were in the common clk
 core due to lack of sanity checking and the third NPD was in the
 mxs-specific clock code due to incorrect use of __initdata.  The device
 regressions were the result of improper data: a wrong string name for
 matching DT data broke the SPEAr ethernet controller and another string
 matching problem in the mxs clock data resulted in a broken MMC
 controller.
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Merge tag 'clk-fixes-for-linus' of git://git.linaro.org/people/mturquette/linux

Pull clk common framework fixes from Mike Turquette:
 "This contains three NULL pointer fixes and two device regression
  fixups.

  Two NULL pointer dereferences were in the common clk core due to lack
  of sanity checking and the third NPD was in the mxs-specific clock
  code due to incorrect use of __initdata.

  The device regressions were the result of improper data: a wrong
  string name for matching DT data broke the SPEAr ethernet controller
  and another string matching problem in the mxs clock data resulted in
  a broken MMC controller."

* tag 'clk-fixes-for-linus' of git://git.linaro.org/people/mturquette/linux:
  clk: mxs: fix clock lookup after freeing init memory
  clk: mxs: fix ref_io clock definition
  clk: Check parent for NULL in clk_change_rate
  clk: Allow late cache allocation for clk->parents
  clk: SPEAr600: Fix ethernet clock name for DT based probing
2012-06-27 12:44:58 -07:00
Dave Jones
6b44695e10 chmod +x scripts/gfp-translate
This script lacks an executable bit.

Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-06-27 12:44:29 -07:00
Dave Airlie
2266b058d3 Merge branch 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel into drm-fixes
Daniel writes:
"Two tiny patches and one revert:
- Kill a bogus error message introduced in 3.4, further Bspec reading
  indicates that this is how the hw is supposed to work.
- Reorder one backlight register restore, fixing broken backlight on some
  machines after resume.
- Revert a hack from Jesse for ivb backlight control - it breaks the
  backlight controls on my shiny new ivb laptop."

* 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel:
  Revert "drm/i915: allow PCH PWM override on IVB"
  drm/i915: Fix eDP blank screen after S3 resume on HP desktops
  drm/i915: rip out the PM_IIR WARN
2012-06-27 19:56:20 +01:00
Daniel Vetter
7aa1e7f06d Revert "drm/i915: allow PCH PWM override on IVB"
This reverts commit f82cfb6bcd.

This breaks the backlight controls on my IVB asus zenbook with an eDP
panel.

I guess the right fix would be to read this bit and use either the pch
or the cpu register to frob the backlight values. But that is stuff
for -next.

Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-06-27 20:26:30 +02:00
Brian Norris
903e0e4ef9 UBI: correct usage of IS_ENABLED()
Commit "e9b4cf2 UBI: fix debugfs-less systems support" fixed one
regression but introduced a different regression - the debugfs is now always
compiled out. Root cause: IS_ENABLED() arguments should be used with the
CONFIG_* prefix.

Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2012-06-27 14:22:15 +03:00
Brian Norris
2d4cf5ae12 UBIFS: correct usage of IS_ENABLED()
Commit "818039c UBIFS: fix debugfs-less systems support" fixed one
regression but introduced a different regression - the debugfs is now always
compiled out. Root cause: IS_ENABLED() arguments should be used with the
CONFIG_* prefix.

Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2012-06-27 14:22:15 +03:00
Hui Wang
85f2f834e8 can: flexcan: use be32_to_cpup to handle the value of dt entry
The freescale arm i.MX series platform can support this driver, and
usually the arm cpu works in the little endian mode by default, while
device tree entry value is stored in big endian format, we should use
be32_to_cpup() to handle them, after modification, it can work well
both on the le cpu and be cpu.

Cc: stable <stable@vger.kernel.org> # v3.2+
Cc: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Hui Wang <jason77.wang@gmail.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2012-06-27 11:12:07 +02:00
Dave Airlie
e9bf5f36b0 drm/nouveau: add license header to prime.
Just forgot this when I posted it, and yes I'm the only person
to have changed the file since.

Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-06-27 09:27:35 +01:00
Ian Campbell
6bc96d047f xen/netfront: teardown the device before unregistering it.
Fixes:
[   15.470311] WARNING: at /local/scratch/ianc/devel/kernels/linux/fs/sysfs/file.c:498 sysfs_attr_ns+0x95/0xa0()
[   15.470326] sysfs: kobject eth0 without dirent
[   15.470333] Modules linked in:
[   15.470342] Pid: 12, comm: xenwatch Not tainted 3.4.0-x86_32p-xenU #93
and
[    9.150554] BUG: unable to handle kernel paging request at 2b359000
[    9.150577] IP: [<c1279561>] linkwatch_do_dev+0x81/0xc0
[    9.150592] *pdpt = 000000002c3c9027 *pde = 0000000000000000
[    9.150604] Oops: 0002 [#1] SMP
[    9.150613] Modules linked in:

This is http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=675190

Reported-by: George Shuklin <george.shuklin@gmail.com>
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Tested-by: William Dauchy <wdauchy@gmail.com>
Cc: stable@kernel.org
Cc: 675190@bugs.debian.org
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-27 01:25:41 -07:00
stephen hemminger
149ddd83a9 bridge: Assign rtnl_link_ops to bridge devices created via ioctl (v2)
This ensures that bridges created with brctl(8) or ioctl(2) directly
also carry IFLA_LINKINFO when dumped over netlink. This also allows
to create a bridge with ioctl(2) and delete it with RTM_DELLINK.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-26 21:12:32 -07:00
Jens Freimann
d7ffde35e3 vhost: use USER_DS in vhost_worker thread
On some architectures address spaces are set up in a way that this is
not necessary to work properly but on some others (like s390) it is.
Make sure we operate on the user address space to allow copy_xxx_user()
from the vhost_worker() thread by setting it explicitly before calling
use_mm() and revert it after unuse_mm().

Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-26 21:10:56 -07:00
Alexander Duyck
57efd44c8c ixgbe: Do not pad FCoE frames as this can cause issues with FCoE DDP
FCoE target mode was experiencing issues due to the fact that we were
sending up data frames that were padded to 60 bytes after the DDP logic had
already stripped the frame down to 52 or 56 depending on the use of VLANs.
This was resulting in the FCoE DDP logic having issues since it thought the
frame still had data in it due to the padding.

To resolve this, adding code so that we do not pad FCoE frames prior to
handling them to the stack.

CC: <stable@vger.kernel.org>
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Tested-by: Ross Brattain <ross.b.brattain@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-26 16:44:34 -07:00
Eric Dumazet
a2842a1e66 net: l2tp_eth: use LLTX to avoid LOCKDEP splats
Denys Fedoryshchenko reported a LOCKDEP issue with l2tp code.

[ 8683.927442] ======================================================
[ 8683.927555] [ INFO: possible circular locking dependency detected ]
[ 8683.927672] 3.4.1-build-0061 #14 Not tainted
[ 8683.927782] -------------------------------------------------------
[ 8683.927895] swapper/0/0 is trying to acquire lock:
[ 8683.928007]  (slock-AF_INET){+.-...}, at: [<e0fc73ec>]
l2tp_xmit_skb+0x173/0x47e [l2tp_core]
[ 8683.928121]
[ 8683.928121] but task is already holding lock:
[ 8683.928121]  (_xmit_ETHER#2){+.-...}, at: [<c02f062d>]
sch_direct_xmit+0x36/0x119
[ 8683.928121]
[ 8683.928121] which lock already depends on the new lock.
[ 8683.928121]
[ 8683.928121]
[ 8683.928121] the existing dependency chain (in reverse order) is:
[ 8683.928121]
[ 8683.928121] -> #1 (_xmit_ETHER#2){+.-...}:
[ 8683.928121]        [<c015a561>] lock_acquire+0x71/0x85
[ 8683.928121]        [<c034da2d>] _raw_spin_lock+0x33/0x40
[ 8683.928121]        [<c0304e0c>] ip_send_reply+0xf2/0x1ce
[ 8683.928121]        [<c0317dbc>] tcp_v4_send_reset+0x153/0x16f
[ 8683.928121]        [<c0317f4a>] tcp_v4_do_rcv+0x172/0x194
[ 8683.928121]        [<c031929b>] tcp_v4_rcv+0x387/0x5a0
[ 8683.928121]        [<c03001d0>] ip_local_deliver_finish+0x13a/0x1e9
[ 8683.928121]        [<c0300645>] NF_HOOK.clone.11+0x46/0x4d
[ 8683.928121]        [<c030075b>] ip_local_deliver+0x41/0x45
[ 8683.928121]        [<c03005dd>] ip_rcv_finish+0x31a/0x33c
[ 8683.928121]        [<c0300645>] NF_HOOK.clone.11+0x46/0x4d
[ 8683.928121]        [<c0300960>] ip_rcv+0x201/0x23d
[ 8683.928121]        [<c02de91b>] __netif_receive_skb+0x329/0x378
[ 8683.928121]        [<c02deae8>] netif_receive_skb+0x4e/0x7d
[ 8683.928121]        [<e08d5ef3>] rtl8139_poll+0x243/0x33d [8139too]
[ 8683.928121]        [<c02df103>] net_rx_action+0x90/0x15d
[ 8683.928121]        [<c012b2b5>] __do_softirq+0x7b/0x118
[ 8683.928121]
[ 8683.928121] -> #0 (slock-AF_INET){+.-...}:
[ 8683.928121]        [<c0159f1b>] __lock_acquire+0x9a3/0xc27
[ 8683.928121]        [<c015a561>] lock_acquire+0x71/0x85
[ 8683.928121]        [<c034da2d>] _raw_spin_lock+0x33/0x40
[ 8683.928121]        [<e0fc73ec>] l2tp_xmit_skb+0x173/0x47e
[l2tp_core]
[ 8683.928121]        [<e0fe31fb>] l2tp_eth_dev_xmit+0x1a/0x2f
[l2tp_eth]
[ 8683.928121]        [<c02e01e7>] dev_hard_start_xmit+0x333/0x3f2
[ 8683.928121]        [<c02f064c>] sch_direct_xmit+0x55/0x119
[ 8683.928121]        [<c02e0528>] dev_queue_xmit+0x282/0x418
[ 8683.928121]        [<c031f4fb>] NF_HOOK.clone.19+0x45/0x4c
[ 8683.928121]        [<c031f524>] arp_xmit+0x22/0x24
[ 8683.928121]        [<c031f567>] arp_send+0x41/0x48
[ 8683.928121]        [<c031fa7d>] arp_process+0x289/0x491
[ 8683.928121]        [<c031f4fb>] NF_HOOK.clone.19+0x45/0x4c
[ 8683.928121]        [<c031f7a0>] arp_rcv+0xb1/0xc3
[ 8683.928121]        [<c02de91b>] __netif_receive_skb+0x329/0x378
[ 8683.928121]        [<c02de9d3>] process_backlog+0x69/0x130
[ 8683.928121]        [<c02df103>] net_rx_action+0x90/0x15d
[ 8683.928121]        [<c012b2b5>] __do_softirq+0x7b/0x118
[ 8683.928121]
[ 8683.928121] other info that might help us debug this:
[ 8683.928121]
[ 8683.928121]  Possible unsafe locking scenario:
[ 8683.928121]
[ 8683.928121]        CPU0                    CPU1
[ 8683.928121]        ----                    ----
[ 8683.928121]   lock(_xmit_ETHER#2);
[ 8683.928121]                                lock(slock-AF_INET);
[ 8683.928121]                                lock(_xmit_ETHER#2);
[ 8683.928121]   lock(slock-AF_INET);
[ 8683.928121]
[ 8683.928121]  *** DEADLOCK ***
[ 8683.928121]
[ 8683.928121] 3 locks held by swapper/0/0:
[ 8683.928121]  #0:  (rcu_read_lock){.+.+..}, at: [<c02dbc10>]
rcu_lock_acquire+0x0/0x30
[ 8683.928121]  #1:  (rcu_read_lock_bh){.+....}, at: [<c02dbc10>]
rcu_lock_acquire+0x0/0x30
[ 8683.928121]  #2:  (_xmit_ETHER#2){+.-...}, at: [<c02f062d>]
sch_direct_xmit+0x36/0x119
[ 8683.928121]
[ 8683.928121] stack backtrace:
[ 8683.928121] Pid: 0, comm: swapper/0 Not tainted 3.4.1-build-0061 #14
[ 8683.928121] Call Trace:
[ 8683.928121]  [<c034bdd2>] ? printk+0x18/0x1a
[ 8683.928121]  [<c0158904>] print_circular_bug+0x1ac/0x1b6
[ 8683.928121]  [<c0159f1b>] __lock_acquire+0x9a3/0xc27
[ 8683.928121]  [<c015a561>] lock_acquire+0x71/0x85
[ 8683.928121]  [<e0fc73ec>] ? l2tp_xmit_skb+0x173/0x47e [l2tp_core]
[ 8683.928121]  [<c034da2d>] _raw_spin_lock+0x33/0x40
[ 8683.928121]  [<e0fc73ec>] ? l2tp_xmit_skb+0x173/0x47e [l2tp_core]
[ 8683.928121]  [<e0fc73ec>] l2tp_xmit_skb+0x173/0x47e [l2tp_core]
[ 8683.928121]  [<e0fe31fb>] l2tp_eth_dev_xmit+0x1a/0x2f [l2tp_eth]
[ 8683.928121]  [<c02e01e7>] dev_hard_start_xmit+0x333/0x3f2
[ 8683.928121]  [<c02f064c>] sch_direct_xmit+0x55/0x119
[ 8683.928121]  [<c02e0528>] dev_queue_xmit+0x282/0x418
[ 8683.928121]  [<c02e02a6>] ? dev_hard_start_xmit+0x3f2/0x3f2
[ 8683.928121]  [<c031f4fb>] NF_HOOK.clone.19+0x45/0x4c
[ 8683.928121]  [<c031f524>] arp_xmit+0x22/0x24
[ 8683.928121]  [<c02e02a6>] ? dev_hard_start_xmit+0x3f2/0x3f2
[ 8683.928121]  [<c031f567>] arp_send+0x41/0x48
[ 8683.928121]  [<c031fa7d>] arp_process+0x289/0x491
[ 8683.928121]  [<c031f7f4>] ? __neigh_lookup.clone.20+0x42/0x42
[ 8683.928121]  [<c031f4fb>] NF_HOOK.clone.19+0x45/0x4c
[ 8683.928121]  [<c031f7a0>] arp_rcv+0xb1/0xc3
[ 8683.928121]  [<c031f7f4>] ? __neigh_lookup.clone.20+0x42/0x42
[ 8683.928121]  [<c02de91b>] __netif_receive_skb+0x329/0x378
[ 8683.928121]  [<c02de9d3>] process_backlog+0x69/0x130
[ 8683.928121]  [<c02df103>] net_rx_action+0x90/0x15d
[ 8683.928121]  [<c012b2b5>] __do_softirq+0x7b/0x118
[ 8683.928121]  [<c012b23a>] ? local_bh_enable+0xd/0xd
[ 8683.928121]  <IRQ>  [<c012b4d0>] ? irq_exit+0x41/0x91
[ 8683.928121]  [<c0103c6f>] ? do_IRQ+0x79/0x8d
[ 8683.928121]  [<c0157ea1>] ? trace_hardirqs_off_caller+0x2e/0x86
[ 8683.928121]  [<c034ef6e>] ? common_interrupt+0x2e/0x34
[ 8683.928121]  [<c0108a33>] ? default_idle+0x23/0x38
[ 8683.928121]  [<c01091a8>] ? cpu_idle+0x55/0x6f
[ 8683.928121]  [<c033df25>] ? rest_init+0xa1/0xa7
[ 8683.928121]  [<c033de84>] ? __read_lock_failed+0x14/0x14
[ 8683.928121]  [<c0498745>] ? start_kernel+0x303/0x30a
[ 8683.928121]  [<c0498209>] ? repair_env_string+0x51/0x51
[ 8683.928121]  [<c04980a8>] ? i386_start_kernel+0xa8/0xaf

It appears that like most virtual devices, l2tp should be converted to
LLTX mode.

This patch takes care of statistics using atomic_long in both RX and TX
paths, and fix a bug in l2tp_eth_dev_recv(), which was caching skb->data
before a pskb_may_pull() call.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Denys Fedoryshchenko <denys@visp.net.lb>
Cc: James Chapman <jchapman@katalix.com>
Cc: Hong zhi guo <honkiko@gmail.com>
Cc: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-26 16:42:33 -07:00
Craig Shelley
3fcc8f9682 USB: CP210x Add 10 Device IDs
This patch adds 10 device IDs for CP210x based devices from the following manufacturers:
Timewave
Clipsal
Festo
Link Instruments

Signed-off-by: Craig Shelley <craig@microtron.org.uk>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-06-26 16:14:34 -07:00
Forest Bond
065b07e7a1 USB: option: Add USB ID for Novatel Ovation MC551
This device is also known as the Verizon USB551L.

Signed-off-by: Forest Bond <forest.bond@rapidrollout.com>
Acked-by: Dan Williams <dcbw@redhat.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-06-26 16:14:34 -07:00
Alexandre Pereira da Silva
c6156328de usb: phy: Fix Kconfig dependency for Phy drivers
USB phy layer driver are only built if usb host is selected, but they
are used too by USB_GADGET drivers

Signed-off-by: Alexandre Pereira da Silva <aletes.xgr@gmail.com>
Acked-by: Roland Stigge <stigge@antcom.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-06-26 16:14:33 -07:00
Ming Lei
fe85227347 Revert "mmc: omap_hsmmc: Enable Auto CMD12"
This patch reverts the commit dba3c29ea4.

After bisecting, this commit dba3c29 is found to ruin micro-SD card data
(writing incorrect file, or fs is corrupt after several times mount)
on the beagle-xm revB, and reverting the commit will fix the problem.

Also from TRM of OMAP3/OMAP4/DM37x, the below is mentioned about
the Auto CMD12 Enable bit.
        - SDIO does not support this feature.
        - SD card only.
Looks it is not suitable to always enable Auto CMD12 in host controller
driver.

Considered that the commit is not mature enough, so ask to revert it
first.

Cc: Balaji T K <balajitk@ti.com>
Cc: Venkatraman S <svenkatr@ti.com>
Buglink: https://lkml.org/lkml/2012/6/10/225
Reported-by: Paolo Pisati <p.pisati@gmail.com>
Reported-bisected-and-tested-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Acked-by: Venkatraman S <svenkatr@ti.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
2012-06-26 16:10:30 -04:00
Subhash Jadavani
d380443cd0 mmc: block: fix the data timeout issue with ACMD22
If multi block write operation fails for SD card, during
error handling we send the SD_APP_SEND_NUM_WR_BLKS (ACMD22)
to know how many blocks were already programmed by card.

But mmc_sd_num_wr_blocks() function which sends the ACMD22
calculates the data timeout value from csd.tacc_ns and
csd.tacc_clks parameters which will be 0 for block addressed
(>2GB cards) SD card. This would result in timeout_ns and
timeout_clks being 0 in the mmc_request passed to host driver.
This means host controller would program its data timeout timer
value with 0 which could result in DATA TIMEOUT errors from
controller.

To fix this issue, mmc_sd_num_wr_blocks() should instead
just call the mmc_set_data_timeout() to calculate the
data timeout value. mmc_set_data_timeout() function
ensures that non zero timeout value is set even for
block addressed SD cards.

Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org>
Reviewed-by: Venkatraman S <svenkatr@ti.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
2012-06-26 16:10:29 -04:00
Linus Torvalds
d1346a6cba Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
 "Just two changes: one udl endian fix, one nouveau memory corruption on
  some GPUs."

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  drm/nouveau/fbcon: using nv_two_heads is not a good idea
  drm/udl: Make sure to get correct endian keys from vendor descriptor
2012-06-26 11:26:50 -07:00
Linus Torvalds
60d2c25251 Merge branch 'upstream-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
Pull HID fixes from Jiri Kosina:
 "The most important one is a purification of Kconfig for CONFIG_HID;
  the inclusion of HID groups and autoloading didn't leave the Kconfig
  in a really consistent state.  Henrik's patch fixes that.  In addition
  to that, there are two small fixes for logitech and magicmouse
  drivers."

* 'upstream-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
  HID: Fix the generic Kconfig options
  HID: magicmouse: Correct report range of major / minor axes
  HID: logitech: don't use stack based dj_report structures
2012-06-26 11:23:41 -07:00
Takashi Iwai
6e1c39c6b0 ALSA: hda - Fix power-map regression for HP dv6 & co
The recent fix for power-map controls (commit b0791dda81) caused
regressions on some other HP laptops.  They have fixed pins but these
pins are exposed as jack-detectable.  Thus the driver tries to control
the power-map dynamically per jack detection where it never gets on.

This patch adds the check of connection and it assumes the no jack
detection is available for fixed pins no matter what pin capability
says.

BugLink: http://bugs.launchpad.net/bugs/1013183
Reported-by: Luis Henriques <luis.henriques@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-06-26 17:43:06 +02:00