Commit Graph

427104 Commits

Author SHA1 Message Date
Tejun Heo
532de3fc72 cgroup: update cgroup_enable_task_cg_lists() to grab siglock
Currently, there's nothing preventing cgroup_enable_task_cg_lists()
from missing set PF_EXITING and race against cgroup_exit().  Depending
on the timing, cgroup_exit() may finish with the task still linked on
css_set leading to list corruption.  Fix it by grabbing siglock in
cgroup_enable_task_cg_lists() so that PF_EXITING is guaranteed to be
visible.

This whole on-demand cg_list optimization is extremely fragile and has
ample possibility to lead to bugs which can cause things like
once-a-year oops during boot.  I'm wondering whether the better
approach would be just adding "cgroup_disable=all" handling which
disables the whole cgroup rather than tempting fate with this
on-demand craziness.

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Li Zefan <lizefan@huawei.com>
Cc: stable@vger.kernel.org
2014-02-18 18:23:18 -05:00
Florian Fainelli
22f08ad972 MAINTAINERS: add entry for the PHY library
The PHY library has been subject to some changes, new drivers and DT
interactions over the past few months. Add myself as a maintainer for
the core PHY library parts and drivers. Make sure the PHY library entry
also covers the Device Tree files which have a close interaction with
the MDIO bus, PHY connection and Ethernet PHY mode parsing.

CC: Grant Likely <grant.likely@linaro.org>
CC: Shaohui Xie <shaohui.xie@freescale.com>
CC: Andy Fleming <afleming@gmail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-18 18:13:40 -05:00
Ben Dooks
f15c586d1d of_mdio: fix phy interrupt passing
The of_mdiobus_register_phy() is not setting phy->irq thus causing
some drivers to incorrectly assume that the PHY does not have an
IRQ associated with it. Not only do some drivers report no IRQ
they do not install an interrupt handler for the PHY.

Simplify the code setting irq and set the phy->irq at the same
time so that we cover the following issues, which should cover
all the cases the code will find:

- Set phy->irq if node has irq property and mdio->irq is NULL
- Set phy->irq if node has no irq and mdio->irq is not NULL
- Leave phy->irq as PHY_POLL default if none of the above

This fixes the issue:
 net eth0: attached PHY 1 (IRQ -1) to driver Micrel KSZ8041RNLI

to the correct:
 net eth0: attached PHY 1 (IRQ 416) to driver Micrel KSZ8041RNLI

Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-18 18:12:53 -05:00
Thomas Petazzoni
4b636b535d net: ethernet: update dependency and help text of mvneta
With the introduction of the support for Armada 375 and Armada 38x,
the hidden Kconfig option MACH_ARMADA_370_XP is being renamed to
MACH_MVEBU_V7. Therefore, the dependency that was used for the mvneta
driver can no longer work. This commit replaces this dependency by a
dependency on PLAT_ORION, which is used similarly for the mv643xx_eth
driver.

In addition to this, it takes this opportunity to adjust the
description and help text to indicate that the driver can is also used
for Armada 38x. Note that Armada 375 cannot use this driver as it has
a completely different networking unit, which will require a separate
driver.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-18 18:09:02 -05:00
Russell King
ce5eaf023a NET: fec: only enable napi if we are successful
If napi is left enabled after a failed attempt to bring the interface
up, we BUG:

fec 2188000.ethernet eth0: no PHY, assuming direct connection to switch
libphy: PHY fixed-0:00 not found
fec 2188000.ethernet eth0: could not attach to PHY
------------[ cut here ]------------
kernel BUG at include/linux/netdevice.h:502!
Internal error: Oops - BUG: 0 [#1] SMP ARM
...
PC is at fec_enet_open+0x4d0/0x500
LR is at __dev_open+0xa4/0xfc

Only enable napi after we are past all the failure paths.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-18 18:07:10 -05:00
Dan Carpenter
d7cf0c34af af_packet: remove a stray tab in packet_set_ring()
At first glance it looks like there is a missing curly brace but
actually the code works the same either way.  I have adjusted the
indenting but left the code the same.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-18 18:02:25 -05:00
Kevin Hao
71c5498eed Revert "of: search the best compatible match first in __of_match_node()"
This reverts commit 06b29e76a7.
As pointed out by Grant Likely, we should also take the type and name
into account when searching the best compatible match. That means the
match with compatible, type and name should be better than the match
just with the same compatible string. So revert this and we will
implement another method to find the best match entry.

Signed-off-by: Kevin Hao <haokexin@gmail.com>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
2014-02-18 22:32:09 +00:00
Dave Airlie
75936c65dd Merge tag 'ttm-fixes-3.14-2014-02-18' of git://people.freedesktop.org/~thomash/linux into drm-fixes
Pull request of 2014-02-18

One compile fix and one memory leak.

* tag 'ttm-fixes-3.14-2014-02-18' of git://people.freedesktop.org/~thomash/linux:
  drm/ttm: Fix memory leak in ttm_agp_backend.c
  drm/ttm: declare 'struct device' in ttm_page_alloc.h
2014-02-19 08:21:26 +10:00
Dave Airlie
9830e44f56 Merge tag 'vmwgfx-fixes-3.14-2014-02-18' of git://people.freedesktop.org/~thomash/linux into drm-fixes
Pull request of 2014-02-18.

Nothing special. The biggest change is adding a couple of command defines and
packing the command data correctly.

* tag 'vmwgfx-fixes-3.14-2014-02-18' of git://people.freedesktop.org/~thomash/linux:
  drm/vmwgfx: Fix command defines and checks
  drm/vmwgfx: Fix possible integer overflow
  drm/vmwgfx: Remove stray const
  drm/vmwgfx: unlock on error path in vmw_execbuf_process()
  drm/vmwgfx: Get maximum mob size from register SVGA_REG_MOB_MAX_SIZE
  drm/vmwgfx: Fix a couple of sparse warnings and errors
2014-02-19 08:21:02 +10:00
Dave Airlie
560591f13e Merge branch 'drm-fixes-3.14' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
Fix for 128x128 cursors, along with some misc fixes.

* 'drm-fixes-3.14' of git://people.freedesktop.org/~agd5f/linux:
  drm/radeon/ni: fix typo in dpm sq ramping setup
  drm/radeon/si: fix typo in dpm sq ramping setup
  drm/radeon: fix CP semaphores on CIK
  drm/radeon: delete a stray tab
  drm/radeon: fix display tiling setup on SI
  drm/radeon/dpm: reduce r7xx vblank mclk threshold to 200
  drm/radeon: fill in DRM_CAPs for cursor size
  drm: add DRM_CAPs for cursor size
  drm/radeon: unify bpc handling
2014-02-19 08:20:14 +10:00
David S. Miller
d3ec67c0e2 Merge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
John W. Linville says:

====================
Please pull this batch of fixes intended for the 3.14 stream...

For the iwlwifi one, Emmanuel says:

"As explicitly written in the commit message, we prefer to disable Tx
AMPDU on NICs supported by iwldvm. This feature gives a big boost in
Tx performance, but the firmware is buggy and we can't rely on it.
Our hope is that most of the users out there want wifi to surf on
the web which means that they care more for Rx traffic than for Tx.
People who want to enable it can do so with the help of a module
parameter."

On top of that...

Dan Carpenter fixes a typo/thinko in ath5k.

Olivier Langlois fixes a couple of rtlwifi issues, one which leaves
IRQs disabled too long (causing a variety of problems elsewhere),
and one which fixes an incorrect return code when failing to enable
the NIC.

Russell King fixes a NULL pointer dereference in hostap.

Stanislaw Gruszka fixes a DMA coherence issue in the rtl8187 driver.

Please let me know if there are problems!
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-18 16:57:42 -05:00
Lai Jiangshan
5bdfff96c6 workqueue: ensure @task is valid across kthread_stop()
When a kworker should die, the kworkre is notified through WORKER_DIE
flag instead of kthread_should_stop().  This, IIRC, is primarily to
keep the test synchronized inside worker_pool lock.  WORKER_DIE is
first set while holding pool->lock, the lock is dropped and
kthread_stop() is called.

Unfortunately, this means that there's a slight chance that the target
kworker may see WORKER_DIE before kthread_stop() finishes and exits
and frees the target task before or during kthread_stop().

Fix it by pinning the target task before setting WORKER_DIE and
putting it after kthread_stop() is done.

tj: Improved patch description and comment.  Moved pinning above
    WORKER_DIE for better signify what it's protecting.

CC: stable@vger.kernel.org
Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
2014-02-18 16:35:20 -05:00
Daniel Borkmann
ffd5939381 net: sctp: fix sctp_connectx abi for ia32 emulation/compat mode
SCTP's sctp_connectx() abi breaks for 64bit kernels compiled with 32bit
emulation (e.g. ia32 emulation or x86_x32). Due to internal usage of
'struct sctp_getaddrs_old' which includes a struct sockaddr pointer,
sizeof(param) check will always fail in kernel as the structure in
64bit kernel space is 4bytes larger than for user binaries compiled
in 32bit mode. Thus, applications making use of sctp_connectx() won't
be able to run under such circumstances.

Introduce a compat interface in the kernel to deal with such
situations by using a 'struct compat_sctp_getaddrs_old' structure
where user data is copied into it, and then sucessively transformed
into a 'struct sctp_getaddrs_old' structure with the help of
compat_ptr(). That fixes sctp_connectx() abi without any changes
needed in user space, and lets the SCTP test suite pass when compiled
in 32bit and run on 64bit kernels.

Fixes: f9c67811eb ("sctp: Fix regression introduced by new sctp_connectx api")
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-18 16:06:48 -05:00
David S. Miller
7ffb0d317d Included changes:
- fix soft-interface MTU computation
 - fix bogus pointer mangling when parsing the TT-TVLV
   container. This bug led to a wrong memory access.
 - fix memory leak by properly releasing the VLAN object
   after CRC check
 - properly check pskb_may_pull() return value
 - avoid potential race condition while adding new neighbour
 - fix potential memory leak by removing all the references
   to the orig_node object in case of initialization failure
 - fix the TT CRC computation by ensuring that every node uses
   the same byte order when hosts with different endianess are
   part of the same network
 - fix severe memory leak by freeing skb after a successful
   TVLV parsing
 - avoid potential double free when orig_node initialization
   fails
 - fix potential kernel paging error caused by the usage of
   the old value of skb->data after skb reallocation
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.22 (GNU/Linux)
 
 iQIcBAABCAAGBQJTAj4LAAoJEEKTMo6mOh1VXoQP/2WVjuIrB7rd4mpq5MSXjkWm
 qCRRmuU9MVSbwBPvKcNAT4sDb9KliodqMu7jtUNKJ118afTK5VIh1EmbFGIm2vA+
 QowpfvSOFaDVrd6pB1bKlPlX5Xi9OF+hj82LalfMRWvsdvQUN00fkCMjyrxPivhR
 zq7ucyff1YTft/mSmD+X0gqNK1L99om2xNcWzPjl+CZ0LOBFe411/sWf8Ujldgl0
 F6jTPXckNBToukmYO8wwmtG8PFrIWNBRUEfpY/P+VNp+Cg7GF9KOts4mdym9PviI
 //PkonRNylfeTvBlztmCdTQB9vHhlT3e/9KTd/lXBQ669Mz/eQ6H1MascDZ8e0Ib
 1IeqL6cyOaEDIOh8Bgr2WcRTH/JCx0F0cy+PISJx0DEVYKLWZedm8ECIU9eXWMr6
 hnTcBue51IoVbDE5SJ0apoDmQOZZF2euaYBPXtRrziZBzcHubt69rQKOqQ/A5atR
 m5kuA7E14NR7F/FOTdKsfLyAVqx9j5mw7NQYAhlbXex0Lp+qQQ9YMtHBv4pgzYA3
 UYE9pnuMkr3EXOQ9wAt/ldq+hWBkXDFkg5nd3bzY8aKw5QLBPHZdrTgFtOmVO1RP
 Fa7fJSwt2ImCa50w59u4f22U870QK7AYK7xvHeLHbvIzthTDgA71OKRePcRu9EU3
 yN6J5h/+A4X7fGgz0Z/X
 =6IO8
 -----END PGP SIGNATURE-----

Merge tag 'batman-adv-fix-for-davem' of git://git.open-mesh.org/linux-merge

Included changes:
- fix soft-interface MTU computation
- fix bogus pointer mangling when parsing the TT-TVLV
  container. This bug led to a wrong memory access.
- fix memory leak by properly releasing the VLAN object
  after CRC check
- properly check pskb_may_pull() return value
- avoid potential race condition while adding new neighbour
- fix potential memory leak by removing all the references
  to the orig_node object in case of initialization failure
- fix the TT CRC computation by ensuring that every node uses
  the same byte order when hosts with different endianess are
  part of the same network
- fix severe memory leak by freeing skb after a successful
  TVLV parsing
- avoid potential double free when orig_node initialization
  fails
- fix potential kernel paging error caused by the usage of
  the old value of skb->data after skb reallocation

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-18 15:40:50 -05:00
Kishon Vijay Abraham I
64fe189169 phy: let phy_provider_register be the last step in registering PHY
Registering phy_provider before creating the PHY can result in PHY
callbacks being invoked which will lead to aborts. In order to avoid this
invoke phy_provider_register after phy_create and phy_set_drvdata.

Reported-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-18 12:13:16 -08:00
Hans de Goede
b51fbf9fb0 phy-core: Don't allow building phy-core as a module
include/phy/phy.h has stub code in there for when building without the
phy-core enabled. This is useful for generic drivers such as ahci-platform,
ehci-platoform and ohci-platform which have support for driving an optional
phy passed to them through the devicetree.

Since on some boards this phy functionality is not needed, being able to
disable the phy subsystem without needing a lot of #ifdef magic in the
driver using it is quite useful.

However this breaks when the module using the phy subsystem is build-in and
the phy-core is not, which leads to the build failing with missing symbol
errors in the linking stage of the zImage.

Which leads to gems such as this being added to the Kconfig for achi_platform:

	depends on GENERIC_PHY || !GENERIC_PHY

Rather then duplicating this code in a lot of places using the phy-core,
I believe it is better to simply not allow the phy-core to be built as a
module. The phy core is quite small and has no external dependencies, so
always building it in when enabling it should not be an issue.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Roger Quadros <rogerq@ti.com>
Acked-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-18 12:13:16 -08:00
Hans de Goede
767a1b5d6e phy-core: Don't propagate -ENOSUPP from phy_pm_runtime_get_sync to caller
The phy-core allows phy_init and phy_power_on to be called multiple times,
but before this patch -ENOSUPP from phy_pm_runtime_get_sync would be
propagated to the caller for the 2nd and later calls.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-18 12:13:16 -08:00
Hans de Goede
f40037fd36 phy-core: phy_get: Leave error logging to the caller
In various cases errors may be expected, ie probe-deferral or a call to
phy_get from a driver where the use of a phy is optional.

Rather then adding all sort of complicated checks for this, and/or adding
special functions like devm_phy_get_optional, simply don't log an error,
and let deciding if get_phy returning an error really should result in a
dev_err up to the caller.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-18 12:13:15 -08:00
Richard Weinberger
06c304e889 phy,phy-bcm-kona-usb2.c: Add dependency on HAS_IOMEM
On archs like S390 or um this driver cannot build nor work.
Make it depend on HAS_IOMEM to bypass build failures.

drivers/phy/phy-bcm-kona-usb2.c:114: undefined reference to `devm_ioremap_resource'

Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-18 12:13:15 -08:00
Daniel Mack
f2dece4499 usb: musb: correct use of schedule_delayed_work()
schedule_delayed_work() takes the delay in jiffies, not msecs. Fix the
caller sites in musb. This bug caused regressions with the cleanups
that went in for 3.14 (8ed1fb790e: "usb: musb: finish suspend/reset
work independently from musb_hub_control()").

Signed-off-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-18 12:08:15 -08:00
Daniel Mack
73926db33b usb: musb: do not sleep in atomic context
musb_port_reset() is called from musb_hub_control() which in turn holds
a spinlock, so musb_port_reset() is not allowed to call msleep().

With the asynchronous work helpers in place, this is fortunately easy to
fix by rescheduling the reset deassertion function to after the time
when the wait period is finished.

Note, however, that the MUSB_POWER_RESUME bit is only set on AM33xx
processors under rare conditions such as when to another driver
reporting an error during suspend. Hence, this didn't hit me yet in
normal operation.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-18 12:08:15 -08:00
Aleksander Morgado
12df84d4a8 USB: serial: option: blacklist interface 4 for Cinterion PHS8 and PXS8
This interface is to be handled by the qmi_wwan driver.

CC: Hans-Christoph Schemmel <hans-christoph.schemmel@gemalto.com>
CC: Christian Schmiedl <christian.schmiedl@gemalto.com>
CC: Nicolaus Colberg <nicolaus.colberg@gemalto.com>
CC: David McCullough <david.mccullough@accelecon.com>
Signed-off-by: Aleksander Morgado <aleksander@aleksander.es>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-18 12:04:41 -08:00
Alan Stern
3e8d6d85ad USB: EHCI: add delay during suspend to prevent erroneous wakeups
High-speed USB connections revert back to full-speed signalling when
the device goes into suspend.  This takes several milliseconds, and
during that time it's not possible to tell reliably whether the device
has been disconnected.

On some platforms, the Wake-On-Disconnect circuitry gets confused
during this intermediate state.  It generates a false wakeup signal,
which can prevent the controller from going to sleep.

To avoid this problem, this patch adds a 5-ms delay to the
ehci_bus_suspend() routine if any ports have to switch over to
full-speed signalling.  (Actually, the delay was already present for
devices using a particular kind of PHY power management; the patch
merely causes the delay to be used more widely.)

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reviewed-by: Peter Chen <Peter.Chen@freescale.com>
CC: <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-18 12:04:41 -08:00
Alex Deucher
21ed4947fd drm/radeon/ni: fix typo in dpm sq ramping setup
inverted logic.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2014-02-18 13:41:06 -05:00
Alex Deucher
5b43c3cd07 drm/radeon/si: fix typo in dpm sq ramping setup
inverted logic.

Noticed-by: Sylvain BERTRAND <sylware@legeek.net>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2014-02-18 13:41:05 -05:00
Christian König
8f53492f86 drm/radeon: fix CP semaphores on CIK
The CP semaphore queue on CIK has a bug that triggers if uncompleted
waits use the same address while a signal is still pending. Work around
this by using different addresses for each sync.

Signed-off-by: Christian König <christian.koenig@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2014-02-18 13:41:05 -05:00
Dan Carpenter
ebc54ffe1c drm/radeon: delete a stray tab
Static checkers complain that probably curly braces were intended here,
but actually it makes more sense to remove the extra tab.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2014-02-18 13:41:04 -05:00
Alex Deucher
6d8ea7de3f drm/radeon: fix display tiling setup on SI
Apply the same logic as CI to SI for setting up the
display tiling parameters.  The num banks may vary
per tiling index just like CI.

Bugs:
https://bugs.freedesktop.org/show_bug.cgi?id=71488
https://bugs.freedesktop.org/show_bug.cgi?id=73946
https://bugs.freedesktop.org/show_bug.cgi?id=74927

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2014-02-18 13:41:03 -05:00
Alex Deucher
78b0351019 drm/radeon/dpm: reduce r7xx vblank mclk threshold to 200
Most laptops seems to have a vblank period of less than
300 and mclk switching works fine.  Drop the quirk and
set the default threshold to 200.

bug:
https://bugzilla.kernel.org/show_bug.cgi?id=70701

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2014-02-18 13:41:02 -05:00
Alex Deucher
bea61c59d7 drm/radeon: fill in DRM_CAPs for cursor size
CIK parts are 128x128, older parts are 64x64.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2014-02-18 13:41:01 -05:00
Alex Deucher
8716ed4e7b drm: add DRM_CAPs for cursor size
Some hardware may not support standard 64x64 cursors.  Add
a drm cap to query the cursor size from the kernel.  Some examples
include radeon CIK parts (128x128 cursors) and armada (32x64 or 64x32).
This allows things like device specific ddxes to remove asics specific
logic and also allows xf86-video-modesetting to work properly with hw
cursors on this hardware. Default to 64 if the driver doesn't specify
a size.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
2014-02-18 13:41:01 -05:00
Alex Deucher
7d5a33b071 drm/radeon: unify bpc handling
We were already storing the bpc (bits per color) information
in radeon_crtc, so just use that everywhere rather than
calculating it everywhere we use it.  This also allows us
to change it in one place if we ever want to override it.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2014-02-18 13:41:00 -05:00
Chao Bi
accb884b32 mei: set client's read_cb to NULL when flow control fails
In mei_cl_read_start(), if it fails to send flow control request, it
will release "cl->read_cb" but forget to set pointer to NULL, leaving
"cl->read_cb" still pointing to random memory, next time this client is
operated like mei_release(), it has chance to refer to this wrong pointer.

Fixes:  PANIC at kfree in mei_release()

[228781.826904] Call Trace:
[228781.829737]  [<c16249b8>] ? mei_cl_unlink+0x48/0xa0
[228781.835283]  [<c1624487>] mei_io_cb_free+0x17/0x30
[228781.840733]  [<c16265d8>] mei_release+0xa8/0x180
[228781.845989]  [<c135c610>] ? __fsnotify_parent+0xa0/0xf0
[228781.851925]  [<c1325a69>] __fput+0xd9/0x200
[228781.856696]  [<c1325b9d>] ____fput+0xd/0x10
[228781.861467]  [<c125cae1>] task_work_run+0x81/0xb0
[228781.866821]  [<c1242e53>] do_exit+0x283/0xa00
[228781.871786]  [<c1a82b36>] ? kprobe_flush_task+0x66/0xc0
[228781.877722]  [<c124eeb8>] ? __dequeue_signal+0x18/0x1a0
[228781.883657]  [<c124f072>] ? dequeue_signal+0x32/0x190
[228781.889397]  [<c1243744>] do_group_exit+0x34/0xa0
[228781.894750]  [<c12517b6>] get_signal_to_deliver+0x206/0x610
[228781.901075]  [<c12018d8>] do_signal+0x38/0x100
[228781.906136]  [<c1626d1c>] ? mei_read+0x42c/0x4e0
[228781.911393]  [<c12600a0>] ? wake_up_bit+0x30/0x30
[228781.916745]  [<c16268f0>] ? mei_poll+0x120/0x120
[228781.922001]  [<c1324be9>] ? vfs_read+0x89/0x160
[228781.927158]  [<c16268f0>] ? mei_poll+0x120/0x120
[228781.932414]  [<c133ca34>] ? fget_light+0x44/0xe0
[228781.937670]  [<c1324e58>] ? SyS_read+0x68/0x80
[228781.942730]  [<c12019f5>] do_notify_resume+0x55/0x70
[228781.948376]  [<c1a7de5d>] work_notifysig+0x29/0x30
[228781.953827]  [<c1a70000>] ? bad_area+0x5/0x3e

Cc: stable <stable@vger.kernel.org> # 3.9+
Signed-off-by: Chao Bi <chao.bi@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-18 10:07:36 -08:00
Linus Torvalds
805937cf45 Miscellaneous ext4 bug fixes for v3.14
-----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABCAAGBQJTA56tAAoJENNvdpvBGATwgrYQAKKWtbMT3xUHJE5Et4//0Pep
 Wn1c8icQDqz+Y1C0L6ELZbY8rQaYb2cQxuf6kJAa7KJHF4lVCa8LzW+VG6S+z+Fy
 +HSoi3eaS/IWzP+eZSE71u+MPN+tdURg5n305/YP40r7OH5lzsQT7LRKosifJwFc
 t+B7lz6XwpgPQ4ooDEMNAHwTaxcocSYlmQqRUgiMsEwqOvskm+CWswB+piPrOzaH
 kyNNIKwds6UH4hVhWEwPk7IrOS6VXe0IlgpkNZM1AOW6DWJ3SNF0qGeH5/e4pG+O
 xpv8UvVej7QJWMyLGPE8z1NBCZ7P57nFOfeiag3Xuvgl/q3WB+5Ye/UZk6DNUaAF
 h2SqS8D4rHuYB9n5izfIDtqJQZ69jbt2dDzTW9a88OVvN1UScaqh++2GeX2OJ/V8
 W6XkOE/g1atO7SyAOaH9RD3D/8+Dp3DZZxocZ4G+/SoKETF8/RboLxyeozoRima2
 FFPaqS105W7b9+QdG1avOlod+0E4wU8gw5kKKuFdAoAjFXaQ+u3R+87w5r8G5alU
 BO+Trf4CTWMLZQv40HEcgDEeF1Nggd48+3GG3oiUmch9qRAZjwyk6gxLvDo1673e
 CcAXpITLn3qPDVzWu/rba8uxRr95PFpXLQ9V8it8b9rWPogodoKg+A7v0Ro/n7bR
 MszulL/GyP1isllyO+Ku
 =XNON
 -----END PGP SIGNATURE-----

Merge tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

Pull ext4 fixes from Ted Ts'o:
 "Miscellaneous ext4 bug fixes for v3.14"

* tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  jbd2: fix use after free in jbd2_journal_start_reserved()
  ext4: don't leave i_crtime.tv_sec uninitialized
  ext4: fix online resize with a non-standard blocks per group setting
  ext4: fix online resize with very large inode tables
  ext4: don't try to modify s_flags if the the file system is read-only
  ext4: fix error paths in swap_inode_boot_loader()
  ext4: fix xfstest generic/299 block validity failures
2014-02-18 10:04:09 -08:00
Florian Fainelli
2d1f7af3d6 usb: gadget: bcm63xx_udc: fix build failure on DMA channel code
Commit 3dc6475 ("bcm63xx_enet: add support Broadcom BCM6345 Ethernet")
changed the ENETDMA[CS] macros such that they are no longer macros, but
actual register offset definitions. The bcm63xx_udc driver was not
updated, and as a result, causes the following build error to pop up:

 CC      drivers/usb/gadget/u_ether.o
drivers/usb/gadget/bcm63xx_udc.c: In function 'iudma_write':
drivers/usb/gadget/bcm63xx_udc.c:642:24: error: called object '0' is not
a function
drivers/usb/gadget/bcm63xx_udc.c: In function 'iudma_reset_channel':
drivers/usb/gadget/bcm63xx_udc.c:698:46: error: called object '0' is not
a function
drivers/usb/gadget/bcm63xx_udc.c:700:49: error: called object '0' is not
a function

Fix this by updating usb_dmac_{read,write}l and usb_dmas_{read,write}l to
take an extra channel argument, and use the channel width
(ENETDMA_CHAN_WIDTH) to offset the register we want to access, hence
doing again what the macro implicitely did for us.

Cc: Kevin Cernekee <cernekee@gmail.com>
Cc: Jonas Gorski <jogo@openwrt.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-02-18 10:34:54 -06:00
Daniel Mack
30d361bf0f usb: musb: do not sleep in atomic context
musb_port_reset() is called from musb_hub_control() which in turn holds
a spinlock, so musb_port_reset() is not allowed to call msleep().

With the asynchronous work helpers in place, this is fortunately easy to
fix by rescheduling the reset deassertion function to after the time
when the wait period is finished.

Note, however, that the MUSB_POWER_RESUME bit is only set on AM33xx
processors under rare conditions such as when to another driver
reporting an error during suspend. Hence, this didn't hit me yet in
normal operation.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-02-18 10:34:07 -06:00
Sachin Kamat
d246c9d55a usb: gadget: s3c2410_udc: Fix build error
Pass value instead of address as expected by 'usb_ep_set_maxpacket_limit'.
Fixes the following compilation error introduced by commit e117e742d3
("usb: gadget: add "maxpacket_limit" field to struct usb_ep"):

drivers/usb/gadget/s3c2410_udc.c: In function ‘s3c2410_udc_reinit’:
drivers/usb/gadget/s3c2410_udc.c:1632:3: error:
cannot take address of bit-field ‘maxpacket’
   usb_ep_set_maxpacket_limit(&ep->ep, &ep->ep.maxpacket);

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Reviewed-by: Robert Baldyga <r.baldyga@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-02-18 10:34:04 -06:00
Roger Quadros
33f8d75f57 usb: musb: core: Fix remote-wakeup resume
During resume don't touch SUSPENDM/RESUME bits of POWER register
while restoring controller context. These bits might be changed
by the controller during resume operation and so will be different
than what they were during suspend.

e.g. SUSPENDM bit is set by software during USB global suspend but
automatically cleared by the controller during remote wakeup or
during resume. Setting this bit back while restoring context
causes undesired behaviour. i.e. Babble interrupt is generated
and USB is broken.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-02-18 10:32:26 -06:00
Ajay Kumar Gupta
3c4653c1f6 usb: musb: host: Fix SuperSpeed hub enumeration
Disables PING on status phase of control transfer.
PING token is not mandatory in status phase of control transfer
and so some high speed USB devices don't support it. If such devices
are connected to MUSB then they would not respond to PING token
causing delayed or failed enumeration.

[Roger Q] Fixes enumeration issues with some Super-Speed USB hubs
e.g. Dlink DUB-1340

Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-02-18 10:32:23 -06:00
Jason Cooper
ae10f8329f ARM: dove: dt: revert PMU interrupt controller node
The corresponding driver didn't make it into v3.14, so we need to remove
the node.  Dove systems fail to boot with the node present and no
driver.

This node will be re-added when the driver makes it to mainline.

Reported-by: Jean-Francois Moine <moinejf@free.fr>
Tested-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-02-18 16:01:27 +00:00
Felipe Balbi
30a70b026b usb: musb: fix obex in g_nokia.ko causing kernel panic
phy_power_off() can, depending on the PHY being used,
start I2C transactions which shouldn't happen in
atomic context.

Current call to phy_power_off() inside omap2430_runtime
callbacks causes the following dump, as a fix, just don't
power off the PHY in runtime.

[   18.606414] [<c037eac0>] (__schedule+0x5c/0x50c) from [<c037d3bc>] (schedule_timeout+0x1f4/0x25c)
[   18.623809] [<c037d3bc>] (schedule_timeout+0x1f4/0x25c) from [<c037f12c>] (wait_for_common+0xc8/0x1ac)
[   18.649291] [<c037f12c>] (wait_for_common+0xc8/0x1ac) from [<c028c1c0>] (omap_i2c_xfer+0x338/0x488)
[   18.674499] [<c028c1c0>] (omap_i2c_xfer+0x338/0x488) from [<c0288144>] (__i2c_transfer+0x40/0x74)
[   18.692047] [<c0288144>] (__i2c_transfer+0x40/0x74) from [<c0288a2c>] (i2c_transfer+0x6c/0x90)
[   18.709320] [<c0288a2c>] (i2c_transfer+0x6c/0x90) from [<c02351c8>] (regmap_i2c_read+0x48/0x68)
[   18.726715] [<c02351c8>] (regmap_i2c_read+0x48/0x68) from [<c023161c>] (_regmap_raw_read+0x128/0x220)
[   18.752685] [<c023161c>] (_regmap_raw_read+0x128/0x220) from [<c02317b4>] (regmap_raw_read+0xa0/0x130)
[   18.779052] [<c02317b4>] (regmap_raw_read+0xa0/0x130) from [<c023193c>] (regmap_bulk_read+0xf8/0x16c)
[   18.805694] [<c023193c>] (regmap_bulk_read+0xf8/0x16c) from [<c0238ea8>] (twl_i2c_read+0xa4/0xe0)
[   18.823730] [<c0238ea8>] (twl_i2c_read+0xa4/0xe0) from [<c0274d34>] (__twl4030_phy_power.isra.12+0x1c/0x58)
[   18.850921] [<c0274d34>] (__twl4030_phy_power.isra.12+0x1c/0x58) from [<c0274df0>]
(twl4030_phy_power.part.14+0x80/0xc8)
[   18.879699] [<c0274df0>] (twl4030_phy_power.part.14+0x80/0xc8) from [<c0274f9c>]
(twl4030_set_suspend+0x54/0x1e8)
[   18.908325] [<c0274f9c>] (twl4030_set_suspend+0x54/0x1e8) from [<c027c8c4>]
(omap2430_runtime_resume+0x5c/0x64)
[   18.937042] [<c027c8c4>] (omap2430_runtime_resume+0x5c/0x64) from [<c0225dd0>]
(pm_generic_runtime_resume+0x2c/0x38)
[   18.966461] [<c0225dd0>] (pm_generic_runtime_resume+0x2c/0x38) from [<c0229fe0>] (__rpm_callback+0x54/0x80)
[   18.995117] [<c0229fe0>] (__rpm_callback+0x54/0x80) from [<c022a04c>] (rpm_callback+0x40/0x74)
[   19.013610] [<c022a04c>] (rpm_callback+0x40/0x74) from [<c022b3c8>] (rpm_resume+0x448/0x63c)
[   19.031921] [<c022b3c8>] (rpm_resume+0x448/0x63c) from [<c022b2e4>] (rpm_resume+0x364/0x63c)
[   19.050140] [<c022b2e4>] (rpm_resume+0x364/0x63c) from [<c022b874>] (__pm_runtime_resume+0x48/0x74)
[   19.077728] [<c022b874>] (__pm_runtime_resume+0x48/0x74) from [<c027b4fc>] (musb_gadget_pullup+0x1c/0xb4)
[   19.105895] [<c027b4fc>] (musb_gadget_pullup+0x1c/0xb4) from [<bf025c14>] (usb_function_deactivate+0x54/0xa4
[libcomposite])
[   19.135955] [<bf025c14>] (usb_function_deactivate+0x54/0xa4 [libcomposite]) from [<bf05b3b8>]
(obex_bind+0x124/0x1d8 [usb_f_obex])
[   19.166870] [<bf05b3b8>] (obex_bind+0x124/0x1d8 [usb_f_obex]) from [<bf025794>] (usb_add_function+0x58/0xf4
[libcomposite])
[   19.197143] [<bf025794>] (usb_add_function+0x58/0xf4 [libcomposite]) from [<bf037420>]
(nokia_bind_config+0x204/0x250 [g_nokia])
[   19.227905] [<bf037420>] (nokia_bind_config+0x204/0x250 [g_nokia]) from [<bf0263fc>] (usb_add_config+0x28/0xc0
[libcomposite])
[   19.258483] [<bf0263fc>] (usb_add_config+0x28/0xc0 [libcomposite]) from [<bf03709c>] (nokia_bind+0x9c/0x21c
[g_nokia])
[   19.288421] [<bf03709c>] (nokia_bind+0x9c/0x21c [g_nokia]) from [<bf0275bc>] (composite_bind+0x74/0x180
[libcomposite])
[   19.318420] [<bf0275bc>] (composite_bind+0x74/0x180 [libcomposite]) from [<c027d658>]
(udc_bind_to_driver+0x2c/0xc4)
[   19.348114] [<c027d658>] (udc_bind_to_driver+0x2c/0xc4) from [<c027d764>] (usb_gadget_probe_driver+0x74/0x94)
[   19.377166] [<c027d764>] (usb_gadget_probe_driver+0x74/0x94) from [<c00086f8>] (do_one_initcall+0x94/0x138)
[   19.406005] [<c00086f8>] (do_one_initcall+0x94/0x138) from [<c007a460>] (load_module+0x113c/0x13c4)
[   19.434051] [<c007a460>] (load_module+0x113c/0x13c4) from [<c007a7b4>] (SyS_init_module+0xcc/0xec)
[   19.462127] [<c007a7b4>] (SyS_init_module+0xcc/0xec) from [<c000dd40>] (ret_fast_syscall+0x0/0x30)
[   19.490753] Code: 0a00002e e1a00004 eb001438 e598300c (e5d3202c)
[   19.506805] ---[ end trace 060b62ec0d68a78b ]---
[   19.523132] Kernel panic - not syncing: Fatal exception in interrupt

dump is from 3.12-rc5 kernel

Reported-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-02-18 09:38:11 -06:00
Levente Kurusa
67809f85d3 ahci: disable NCQ on Samsung pci-e SSDs on macbooks
Samsung's pci-e SSDs with device ID 0x1600 which are found on some
macbooks time out on NCQ commands.  Blacklist NCQ on the device so
that the affected machines can at least boot.

Original-patch-by: Levente Kurusa <levex@linux.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=60731
Cc: stable@vger.kernel.org
2014-02-18 10:22:17 -05:00
Tomasz Nowicki
b685f3b174 ACPI / PCI: Fix memory leak in acpi_pci_irq_enable()
acpi_pci_link_allocate_irq() can return negative gsi even if
entry != NULL.  For that case we have a memory leak, so free
entry before returning from acpi_pci_irq_enable() for gsi < 0.

Signed-off-by: Tomasz Nowicki <tomasz.nowicki@linaro.org>
Cc: All applicable <stable@vger.kernel.org>
[rjw: Subject and changelog]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-02-18 15:47:23 +01:00
Masanari Iida
7a444d1f0b drm/ttm: Fix memory leak in ttm_agp_backend.c
This patch fix a memory leak found by cppcheck.
[drivers/gpu/drm/ttm/ttm_agp_backend.c:129]:
(error) Memory leak: agp_be

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
2014-02-18 14:03:32 +01:00
Alexandre Courbot
728a0cdf06 drm/ttm: declare 'struct device' in ttm_page_alloc.h
Declare 'struct device' explicitly in ttm_page_alloc.h as this file
does not include any file declaring it. This removes the following
warning:

	warning: 'struct device' declared inside parameter list

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
2014-02-18 14:01:48 +01:00
Joerg Roedel
15eeb2e925 Merge branch 'for-joerg/arm-smmu/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/will/linux into iommu/fixes 2014-02-18 12:26:36 +01:00
Jan Kara
45a22f4c11 inotify: Fix reporting of cookies for inotify events
My rework of handling of notification events (namely commit 7053aee26a
"fsnotify: do not share events between notification groups") broke
sending of cookies with inotify events. We didn't propagate the value
passed to fsnotify() properly and passed 4 uninitialized bytes to
userspace instead (so it is also an information leak). Sadly I didn't
notice this during my testing because inotify cookies aren't used very
much and LTP inotify tests ignore them.

Fix the problem by passing the cookie value properly.

Fixes: 7053aee26a
Reported-by: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: Jan Kara <jack@suse.cz>
2014-02-18 11:17:17 +01:00
Hui Wang
4913e0bf23 ALSA: hda - add headset mic detect quirks for two Dell laptops
When we plug a 3-ring headset on the Dell machines (Vendor ID:
0x10ec0255, Subsystem ID: 0x10280657; Vendor ID: 0x10ec0255,
Subsystem ID: 0x1028065f), the headset mic can't be
detected, after apply this patch, the headset mic can work well.

BugLink: https://bugs.launchpad.net/bugs/1260303
Cc: David Henningsson <david.henningsson@canonical.com>
Tested-by: Cyrus Lien <cyrus.lien@canonical.com>
Cc: stable@vger.kernel.org
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-02-18 07:59:57 +01:00
Dave Airlie
c2288d4d38 Merge branch 'drm-nouveau-next' of git://anongit.freedesktop.org/git/nouveau/linux-2.6 into drm-fixes
Nothing too exciting, mostly fixes for ancient boards, but a pretty important fix for DP on some systems.

Thanks,
* 'drm-nouveau-next' of git://anongit.freedesktop.org/git/nouveau/linux-2.6:
  drm/nouveau: fix TTM_PL_TT memtype on pre-nv50
  drm/nv50/disp: use correct register to determine DP display bpp
  drm/nouveau/fb: use correct ram oclass for nv1a hardware
  drm/nv50/gr: add missing nv_error parameter priv
  drm/nouveau: fix ENG_RUNLIST register address
  drm/nv4c/bios: disallow retrieving from prom on nv4x igp's
  drm/nv4c/vga: decode register is in a different place on nv4x igp's
  drm/nv4c/mc: nv4x igp's have a different msi rearm register
  drm/nouveau: set irq_enabled manually
2014-02-18 16:22:40 +10:00
Dave Airlie
42738c2b39 Merge tag 'drm-intel-fixes-2014-02-14' of ssh://git.freedesktop.org/git/drm-intel into drm-fixes
3 fixes plus 1 prep patch, all four cc: stable. Jani will take over from
here and the plan is that he'll do 3.14-fixes for the entire release just
to work things out a bit.

* tag 'drm-intel-fixes-2014-02-14' of ssh://git.freedesktop.org/git/drm-intel:
  drm/i915/dp: add native aux defer retry limit
  drm/i915/dp: increase native aux defer retry timeout
  drm/i915: Prevent MI_DISPLAY_FLIP straddling two cachelines on IVB
  drm/i915: Add intel_ring_cachline_align()
2014-02-18 16:21:49 +10:00