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Author SHA1 Message Date
David S. Miller 82f1918351 linux-can-fixes-for-3.14-20140303
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Merge tag 'linux-can-fixes-for-3.14-20140303' of git://gitorious.org/linux-can/linux-can

linux-can-fixes-for-3.14-20140303

Marc Kleine-Budde says:

====================
this is a pull request of 8 patches. Oliver Hartkopp contributes a patch which
removes the CAN FD compatibility for CAN 2.0 sockets, as it turns out that this
compatibility has some conceptual cornercases. The remaining 7 patches are by
me, they address a problem in the flexcan driver. When shutting down the
interface ("ifconfig can0 down") under heavy network load the whole system will
hang. This series reworks the actual sequence in close() and the transition
from and to the low power modes of the CAN controller.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-03 16:05:04 -05:00
Xin Long 10ddceb22b ip_tunnel:multicast process cause panic due to skb->_skb_refdst NULL pointer
when ip_tunnel process multicast packets, it may check if the packet is looped
back packet though 'rt_is_output_route(skb_rtable(skb))' in ip_tunnel_rcv(),
but before that , skb->_skb_refdst has been dropped in iptunnel_pull_header(),
so which leads to a panic.

fix the bug: https://bugzilla.kernel.org/show_bug.cgi?id=70681

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-03 15:56:40 -05:00
Schuyler Patton 3995d265b3 net: cpsw: fix cpdma rx descriptor leak on down interface
This patch fixes a CPDMA RX Descriptor leak that occurs after taking
the interface down when the CPSW is in Dual MAC mode. Previously
the CPSW_ALE port was left open up which causes packets to be received
and processed by the RX interrupt handler and were passed to the
non active network interface where they were ignored.

The fix is for the slave_stop function of the selected interface
to disable the respective CPSW_ALE Port from forwarding packets. This
blocks traffic from being received on the inactive interface.

Signed-off-by: Schuyler Patton <spatton@ti.com>
Reviewed-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-03 15:50:31 -05:00
Vasundhara Volam ec495fac11 be2net: isolate TX workarounds not applicable to Skyhawk-R
Some of TX workarounds in be_xmit_workarounds() routine
are not applicable (and result in HW errors) to Skyhawk-R chip.
Isolate BE3-R/Lancer specific workarounds to a separate routine.

Signed-off-by: Vasundhara Volam <vasundhara.volam@emulex.com>
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: Somnath Kotur <somnath.kotur@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-03 15:48:11 -05:00
Vasundhara Volam c912895106 be2net: Fix skb double free in be_xmit_wrokarounds() failure path
skb_padto(), skb_share_check() and __vlan_put_tag() routines free
skb when they return an error. This patch fixes be_xmit_workarounds()
to not free skb again in such cases.

Signed-off-by: Vasundhara Volam <vasundhara.volam@emulex.com>
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: Somnath Kotur <somnath.kotur@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-03 15:48:11 -05:00
Somnath kotur 7ad09458a5 be2net: clear promiscuous bits in adapter->flags while disabling promiscuous mode
We should clear promiscuous bits in adapter->flags while disabling promiscuous
mode. Else we will not put interface back into VLAN promisc mode if the vlans
already added exceeds the maximum limit.

Signed-off-by: Kalesh AP <kalesh.purayil@emulex.com>
Signed-off-by: Somnath Kotur <somnath.kotur@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-03 15:48:11 -05:00
Somnath Kotur c502224efb be2net: Fix to reset transparent vlan tagging
For disabling transparent tagging issue SET_HSW_CONFIG with pvid_valid=1
and pvid=0xFFFF and not with the default pvid as this case would fail in Lancer.
Hence removing the get_hsw_config call from be_vf_setup() as it's
only use of getting default pvid is no longer needed.

Also do proper housekeeping only if the FW command succeeds.

Signed-off-by: Kalesh AP <kalesh.purayil@emulex.com>
Signed-off-by: Somnath Kotur <somnath.kotur@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-03 15:48:11 -05:00
Dan Carpenter e842b068bf qlcnic: dcb: a couple off by one bugs
The ->tc_cfg[] array has QLC_DCB_MAX_TC (8) elements so the check is
off by one.  These functions are always called with valid values though
so it doesn't affect how the code works.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-03 15:38:12 -05:00
Yuchung Cheng c84a57113f tcp: fix bogus RTT on special retransmission
RTT may be bogus with tall loss probe (TLP) when a packet
is retransmitted and latter (s)acked without TCPCB_SACKED_RETRANS flag.

For example, TLP calls __tcp_retransmit_skb() instead of
tcp_retransmit_skb(). The skb timestamps are updated but the sacked
flag is not marked with TCPCB_SACKED_RETRANS. As a result we'll
get bogus RTT in tcp_clean_rtx_queue() or in tcp_sacktag_one() on
spurious retransmission.

The fix is to apply the sticky flag TCP_EVER_RETRANS to enforce Karn's
check on RTT sampling. However this will disable F-RTO if timeout occurs
after TLP, by resetting undo_marker in tcp_enter_loss(). We relax this
check to only if any pending retransmists are still in-flight.

Signed-off-by: Yuchung Cheng <ycheng@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Acked-by: Nandita Dukkipati <nanditad@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-03 15:33:02 -05:00
Dan Carpenter de39d7a4f3 hsr: off by one sanity check in hsr_register_frame_in()
This is a sanity check and we never pass invalid values so this patch
doesn't change anything.  However the node->time_in[] array has
HSR_MAX_SLAVE (2) elements and not HSR_MAX_DEV (3).

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-03 15:29:42 -05:00
John W. Linville 0c6a4812a0 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem 2014-03-03 14:34:45 -05:00
Linus Torvalds 0c0bd34a14 Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fixes from Ingo Molnar:
 "Misc fixes, most of them SCHED_DEADLINE fallout"

* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched/deadline: Prevent rt_time growth to infinity
  sched/deadline: Switch CPU's presence test order
  sched/deadline: Cleanup RT leftovers from {inc/dec}_dl_migration
  sched: Fix double normalization of vruntime
2014-03-03 10:49:24 -08:00
Linus Torvalds 148b59c60c Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull liblockdep fixes from Ingo Molnar:
 "A handful of build fixes for liblockdep"

* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  tools/liblockdep: Use realpath for srctree and objtree
  tools/liblockdep: Add a stub for new rcu_is_watching
  tools/liblockdep: Mark runtests.sh as executable
  tools/liblockdep: Add include directory to allow tests to compile
  tools/liblockdep: Fix include of asm/hash.h
  tools/liblockdep: Fix initialization code path
2014-03-03 10:48:48 -08:00
Linus Torvalds 7abd42eab3 Clock framework and driver fixes, all of which fix user-visible
regressions. There is a single framework fix that prevents dereferencing
 a NULL pointer when calling clk_get. The range of fixes for clock driver
 regressions spans memory leak fixes, touching the wrong registers that
 cause things to explode, misconfigured clock rates that result in
 non-responsive devices and even some boot failures. The most benign fix
 is DT binding doc typo. It is a stable ABI exposed from the kernel that
 was introduced in -rc1, so best to fix it now.
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Merge tag 'clk-fixes-for-linus' of git://git.linaro.org/people/mike.turquette/linux

Pull clk framework fixes from Mike Turquette:
 "Clock framework and driver fixes, all of which fix user-visible
  regressions.

  There is a single framework fix that prevents dereferencing a NULL
  pointer when calling clk_get.  The range of fixes for clock driver
  regressions spans memory leak fixes, touching the wrong registers that
  cause things to explode, misconfigured clock rates that result in
  non-responsive devices and even some boot failures.  The most benign
  fix is DT binding doc typo.  It is a stable ABI exposed from the
  kernel that was introduced in -rc1, so best to fix it now"

* tag 'clk-fixes-for-linus' of git://git.linaro.org/people/mike.turquette/linux: (25 commits)
  clk:at91: Fix memory leak in of_at91_clk_master_setup()
  clk: nomadik: fix multiplatform problem
  clk: Correct handling of NULL clk in __clk_{get, put}
  clk: shmobile: Fix typo in MSTP clock DT bindings
  clk: shmobile: rcar-gen2: Fix qspi divisor
  clk: shmobile: rcar-gen2: Fix clock parent for all non-PLL clocks
  clk: tegra124: remove gr2d and gr3d clocks
  clk: tegra: Fix vic03 mux index
  clk: shmobile: rcar-gen2: Fix qspi divisor
  clk: shmobile: rcar-gen2: Fix clock parent all non-PLL clocks
  clk: tegra: use max divider if divider overflows
  clk: tegra: cclk_lp has a pllx/2 divider
  clk: tegra: fix sdmmc clks on Tegra1x4
  clk: tegra: fix host1x clock on Tegra124
  clk: tegra: PLLD2 fixes for hdmi
  clk: tegra: Fix PLLD mnp table
  clk: tegra: Fix PLLP rate table
  clk: tegra: Correct clock number for UARTE
  clk: tegra: Add missing Tegra20 fuse clks
  ARM: keystone: dts: fix clkvcp3 control register address
  ...
2014-03-03 10:47:46 -08:00
Russell King d13c46c67e DRM: armada: fix use of kfifo_put()
The kfifo_put() API changed in 498d319bb5 (kfifo API type safety)
which now results in the wrong pointer being added to the kfifo ring,
which then causes an oops.  Fix this.

Cc: <stable@vger.kernel.org> # 3.13
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-03-03 17:47:22 +00:00
Ville Syrjälä 6375b768a9 drm/i915: Reject >165MHz modes w/ DVI monitors
Single-link DVI max dotclock is 165MHz. Filter out modes with higher
dotclock when the monitor doesn't support HDMI.

Modes higher than 165 MHz were allowed in

commit 7d148ef51a
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Mon Jul 22 18:02:39 2013 +0200

    drm/i915: fix hdmi portclock limits

Also don't attempt to use 12bpc mode with DVI monitors.

Cc: Adam Nielsen <a.nielsen@shikadi.net>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=75345
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=70331
Tested-by: Ralf Jung <post+kernel@ralfj.de>
Cc: stable@vger.kernel.org
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2014-03-03 19:08:08 +02:00
Paulo Zanoni d9d820810d drm/i915: fix assert_cursor on BDW
We need to read the correct register, not a register that doesn't exist
and will trigger "Unclaimed register" messages when we touch it.

Also rearrange the checks in an attempt to prevent this error from
happening again.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
[Jani: dropped an extra empty line introduced.]
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2014-03-03 19:07:40 +02:00
Imre Deak 17b0c1f786 drm/i915: vlv: reserve GT power context early
We reserve the space for the power context in stolen memory at a fixed
address from a delayed work. This races with the subsequent driver
init/resume code which could allocate something at that address, so the
reservation for the power context fails. Reserve the space up-front, so
this can't happen. This also adds a missing struct_mutex lock around the
stolen allocation, which wasn't taken in the delayed work path.

Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: stable@vger.kernel.org
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2014-03-03 19:06:40 +02:00
Mike Galbraith 2a26ebef84 rt,blk,mq: Make blk_mq_cpu_notify_lock a raw spinlock
[  365.164040] BUG: sleeping function called from invalid context at kernel/rtmutex.c:674
[  365.164041] in_atomic(): 1, irqs_disabled(): 1, pid: 26, name: migration/1
[  365.164043] no locks held by migration/1/26.
[  365.164044] irq event stamp: 6648
[  365.164056] hardirqs last  enabled at (6647): [<ffffffff8153d377>] restore_args+0x0/0x30
[  365.164062] hardirqs last disabled at (6648): [<ffffffff810ed98d>] multi_cpu_stop+0x9d/0x120
[  365.164070] softirqs last  enabled at (0): [<ffffffff810543bc>] copy_process.part.28+0x6fc/0x1920
[  365.164072] softirqs last disabled at (0): [<          (null)>]           (null)
[  365.164076] CPU: 1 PID: 26 Comm: migration/1 Tainted: GF           N  3.12.12-rt19-0.gcb6c4a2-rt #3
[  365.164078] Hardware name: QCI QSSC-S4R/QSSC-S4R, BIOS QSSC-S4R.QCI.01.00.S013.032920111005 03/29/2011
[  365.164091]  0000000000000001 ffff880a42ea7c30 ffffffff815367e6 ffffffff81a086c0
[  365.164099]  ffff880a42ea7c40 ffffffff8108919c ffff880a42ea7c60 ffffffff8153c24f
[  365.164107]  ffff880a42ea91f0 00000000ffffffe1 ffff880a42ea7c88 ffffffff81297ec0
[  365.164108] Call Trace:
[  365.164119]  [<ffffffff810060b1>] try_stack_unwind+0x191/0x1a0
[  365.164127]  [<ffffffff81004872>] dump_trace+0x92/0x360
[  365.164133]  [<ffffffff81006108>] show_trace_log_lvl+0x48/0x60
[  365.164138]  [<ffffffff81004c18>] show_stack_log_lvl+0xd8/0x1d0
[  365.164143]  [<ffffffff81006160>] show_stack+0x20/0x50
[  365.164153]  [<ffffffff815367e6>] dump_stack+0x54/0x9a
[  365.164163]  [<ffffffff8108919c>] __might_sleep+0xfc/0x140
[  365.164173]  [<ffffffff8153c24f>] rt_spin_lock+0x1f/0x70
[  365.164182]  [<ffffffff81297ec0>] blk_mq_main_cpu_notify+0x20/0x70
[  365.164191]  [<ffffffff81540a1c>] notifier_call_chain+0x4c/0x70
[  365.164201]  [<ffffffff81083499>] __raw_notifier_call_chain+0x9/0x10
[  365.164207]  [<ffffffff810567be>] cpu_notify+0x1e/0x40
[  365.164217]  [<ffffffff81525da2>] take_cpu_down+0x22/0x40
[  365.164223]  [<ffffffff810ed9c6>] multi_cpu_stop+0xd6/0x120
[  365.164229]  [<ffffffff810edd97>] cpu_stopper_thread+0xd7/0x1e0
[  365.164235]  [<ffffffff810863a3>] smpboot_thread_fn+0x203/0x380
[  365.164241]  [<ffffffff8107cbf8>] kthread+0xc8/0xd0
[  365.164250]  [<ffffffff8154440c>] ret_from_fork+0x7c/0xb0
[  365.164429] smpboot: CPU 1 is now offline

Signed-off-by: Mike Galbraith <bitbucket@online.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
2014-03-03 09:34:10 -07:00
Zhang Rui f2234bcd03 Thermal: thermal zone governor fix
This patch does a cleanup about the thermal zone govenor,
setting and make the following rule.
1. For thermal zone devices that are registered w/o tz->tzp,
   they can use the default thermal governor only.
2. For thermal zone devices w/ governor name specified in
   tz->tzp->governor_name, we will use the default govenor
   if the governor specified is not available at the moment,
   and update tz->governor when the matched governor is registered.

This also fixes a problem that OF registered thermal zones
are running with no governor.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Acked-by: Javi Merino <javi.merino@arm.com>
2014-03-03 23:15:57 +08:00
Ni Wade 5ca0cce562 Thermal: Allow first update of cooling device state
In initialization, if the cooling device is initialized at
max cooling state, and the thermal zone temperature is below
the first trip point, then the cooling state can't be updated
to the right state, untill the first trip point be triggered.

To fix this issue, allow first update of cooling device state
during registration, initialized "updated" device field as
"false" (instead of "true").

Signed-off-by: Wei Ni <wni@nvidia.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2014-03-03 23:15:29 +08:00
Richard Weinberger d1c8b0410b thermal,rcar_thermal: Add dependency on HAS_IOMEM
Commit beeb5a1e (thermal: rcar-thermal: Enable driver compilation with COMPILE_TEST)
broke build on archs wihout io memory.

On archs like S390 or um this driver cannot build nor work.
Make it depend on HAS_IOMEM to bypass build failures.

drivers/thermal/rcar_thermal.c:404: undefined reference to `devm_ioremap_resource'
drivers/thermal/rcar_thermal.c:426: undefined reference to `devm_ioremap_resource'

Signed-off-by: Richard Weinberger <richard@nod.at>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2014-03-03 23:15:02 +08:00
Jean Delvare 3e4216531c x86_pkg_temp_thermal: Fix the thermal zone type
The thermal zone type should not include an instance number. Otherwise
each zone is considered a different type and the thermal-to-hwmon
bridge fails to group them all in a single hwmon device.

I also changed the type to "x86_pkg_temp", because "pkg" was too
generic, and other thermal drivers use an underscore, not a dash, as
a separator. Or maybe "cpu_pkg_temp" would be better?

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2014-03-03 23:13:37 +08:00
Jean Delvare 79786880a4 x86_pkg_temp_thermal: Do not expose as a hwmon device
The temperature value reported by x86_pkg_temp_thermal is already
reported by the coretemp driver. So, do not expose this thermal zone
as a hwmon device, because it would be redundant.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Eduardo Valentin <eduardo.valentin@ti.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2014-03-03 23:13:24 +08:00
Zhang Rui 37d6a82bd9 Thermal: update INT3404 thermal driver help text
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2014-03-03 23:12:49 +08:00
Uwe Kleine-König 7693decce8 ARM: XEN depends on having a MMU
arch/arm/xen/enlighten.c (and maybe others) use MMU-specific functions
like pte_mkspecial which are only available on MMU builds. So let XEN
depend on MMU.

Suggested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2014-03-03 09:26:55 -05:00
Oliver Hartkopp 821047c405 can: remove CAN FD compatibility for CAN 2.0 sockets
In commit e2d265d3b5 (canfd: add support for CAN FD in CAN_RAW sockets)
CAN FD frames with a payload length up to 8 byte are passed to legacy
sockets where the CAN FD support was not enabled by the application.

After some discussions with developers at a fair this well meant feature
leads to confusion as no clean switch for CAN / CAN FD is provided to the
application programmer. Additionally a compatibility like this for legacy
CAN_RAW sockets requires some compatibility handling for the sending, e.g.
make CAN2.0 frames a CAN FD frame with BRS at transmission time (?!?).

This will become a mess when people start to develop applications with
real CAN FD hardware. This patch reverts the bad compatibility code
together with the documentation describing the removed feature.

Acked-by: Stephane Grosjean <s.grosjean@peak-system.com>
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2014-03-03 14:29:52 +01:00
Marc Kleine-Budde 4b5b82274a can: flexcan: factor out soft reset into seperate funtion
This patch moves the soft reset into a seperate function.

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2014-03-03 14:29:51 +01:00
Marc Kleine-Budde d96e43e8fc can: flexcan: flexcan_remove(): add missing netif_napi_del()
This patch adds the missing netif_napi_del() to the flexcan_remove() function.

Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2014-03-03 14:29:51 +01:00
Marc Kleine-Budde b1aa1c7a21 can: flexcan: fix transition from and to freeze mode in chip_{,un}freeze
This patch factors out freeze and unfreeze of the CAN core into seperate
functions. Experiments have shown that the transition from and to freeze mode
may take several microseconds, especially the time entering the freeze mode
depends on the current bitrate.

This patch adds a while loop which polls the Freeze Mode ACK bit (FRZ_ACK) that
indicates a successfull mode change. If the function runs into a timeout a
error value is returned.

Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2014-03-03 12:41:46 +01:00
Marc Kleine-Budde f003698e23 can: flexcan: factor out transceiver {en,dis}able into seperate functions
This patch moves the transceiver enable and disable into seperate functions,
where the NULL pointer check is hidden.

Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2014-03-03 12:41:39 +01:00
Marc Kleine-Budde 9b00b300e7 can: flexcan: fix transition from and to low power mode in chip_{en,dis}able
In flexcan_chip_enable() and flexcan_chip_disable() fixed delays are used.
Experiments have shown that the transition from and to low power mode may take
several microseconds.

This patch adds a while loop which polls the Low Power Mode ACK bit (LPM_ACK)
that indicates a successfull mode change. If the function runs into a timeout a
error value is returned.

Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2014-03-03 12:41:27 +01:00
Marc Kleine-Budde 7e9e148af0 can: flexcan: flexcan_open(): fix error path if flexcan_chip_start() fails
If flexcan_chip_start() in flexcan_open() fails, the interrupt is not freed,
this patch adds the missing cleanup.

Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2014-03-03 12:41:22 +01:00
Marc Kleine-Budde 5be93bdda6 can: flexcan: fix shutdown: first disable chip, then all interrupts
When shutting down the CAN interface (ifconfig canX down) during high CAN bus
loads, the CAN core might hang and freeze the whole CPU.

This patch fixes the shutdown sequence by first disabling the CAN core then
disabling all interrupts.

Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2014-03-03 12:40:52 +01:00
Imre Deak bcdb72ac7c drm/i915: fix pch pci device enumeration
pci_get_class(class, from) drops the refcount for 'from', so the
extra pci_dev_put we do on it will result in a use after free bug
starting with the WARN below.

Regression introduced in

commit 6a9c4b35e6
Author: Rui Guo <firemeteor@users.sourceforge.net>
Date:   Wed Jun 19 21:10:23 2013 +0800

    drm/i915: Fix PCH detect with multiple ISA bridges in VM

[  164.338460] WARNING: CPU: 1 PID: 2094 at include/linux/kref.h:47 klist_next+0xae/0x110()
[  164.347731] CPU: 1 PID: 2094 Comm: modprobe Tainted: G           O 3.13.0-imre+ #354
[  164.356468] Hardware name: Intel Corp. VALLEYVIEW B0 PLATFORM/NOTEBOOK, BIOS BYTICRB1.X64.0062.R70.1310112051 10/11/2013
[  164.368796] Call Trace:
[  164.371609]  [<ffffffff816a32a6>] dump_stack+0x4e/0x7a
[  164.377447]  [<ffffffff8104f75d>] warn_slowpath_common+0x7d/0xa0
[  164.384238]  [<ffffffff8104f83a>] warn_slowpath_null+0x1a/0x20
[  164.390851]  [<ffffffff8169aeae>] klist_next+0xae/0x110
[  164.396777]  [<ffffffff8130a110>] ? pci_do_find_bus+0x70/0x70
[  164.403286]  [<ffffffff813cb4a9>] bus_find_device+0x89/0xc0
[  164.409719]  [<ffffffff8130a373>] pci_get_dev_by_id+0x63/0xa0
[  164.416238]  [<ffffffff8130a4e4>] pci_get_class+0x44/0x50
[  164.422433]  [<ffffffffa034821f>] intel_dsm_detect+0x16f/0x1f0 [i915]
[  164.429801]  [<ffffffffa03482ae>] intel_register_dsm_handler+0xe/0x10 [i915]
[  164.437831]  [<ffffffffa02d30fe>] i915_driver_load+0xafe/0xf30 [i915]
[  164.445126]  [<ffffffff8158a150>] ? intel_alloc_coherent+0x110/0x110
[  164.452340]  [<ffffffffa0148c07>] drm_dev_register+0xc7/0x150 [drm]
[  164.459462]  [<ffffffffa014b23f>] drm_get_pci_dev+0x11f/0x1f0 [drm]
[  164.466554]  [<ffffffff816abb81>] ? _raw_spin_unlock_irqrestore+0x51/0x70
[  164.474287]  [<ffffffffa02cf7a6>] i915_pci_probe+0x56/0x60 [i915]
[  164.481185]  [<ffffffff8130a028>] pci_device_probe+0x78/0xf0
[  164.487603]  [<ffffffff813cd495>] driver_probe_device+0x155/0x350
[  164.494505]  [<ffffffff813cd74e>] __driver_attach+0x6e/0xa0
[  164.500826]  [<ffffffff813cd6e0>] ? __device_attach+0x50/0x50
[  164.507333]  [<ffffffff813cb2be>] bus_for_each_dev+0x6e/0xc0
[  164.513752]  [<ffffffff813ccefe>] driver_attach+0x1e/0x20
[  164.519870]  [<ffffffff813cc958>] bus_add_driver+0x138/0x260
[  164.526289]  [<ffffffffa0188000>] ? 0xffffffffa0187fff
[  164.532116]  [<ffffffff813cde78>] driver_register+0x98/0xe0
[  164.538558]  [<ffffffffa0188000>] ? 0xffffffffa0187fff
[  164.544389]  [<ffffffff813087b0>] __pci_register_driver+0x60/0x70
[  164.551336]  [<ffffffffa014b37d>] drm_pci_init+0x6d/0x120 [drm]
[  164.558040]  [<ffffffffa0188000>] ? 0xffffffffa0187fff
[  164.563928]  [<ffffffffa018806a>] i915_init+0x6a/0x6c [i915]
[  164.570363]  [<ffffffff810002da>] do_one_initcall+0xaa/0x160
[  164.576783]  [<ffffffff8103b140>] ? set_memory_nx+0x40/0x50
[  164.583100]  [<ffffffff810ce7f5>] load_module+0x1fb5/0x2550
[  164.589410]  [<ffffffff810caab0>] ? store_uevent+0x40/0x40
[  164.595628]  [<ffffffff810cee7d>] SyS_init_module+0xed/0x100
[  164.602048]  [<ffffffff816b3c52>] system_call_fastpath+0x16/0x1b

v2: simplify the loop further (Chris)

Signed-off-by: Imre Deak <imre.deak@intel.com>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Reported-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=65652
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=74161
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@vger.kernel.org
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2014-03-03 11:51:16 +02:00
Akash Goel 3617dc9675 drm/i915: Resolving the memory region conflict for Stolen area
There is a conflict seen when requesting the kernel to reserve
the physical space used for the stolen area. This is because
some BIOS are wrapping the stolen area in the root PCI bus, but have
an off-by-one error. As a workaround we retry the reservation with an
offset of 1 instead of 0.

v2: updated commit message & the comment in source file (Daniel)

Signed-off-by: Akash Goel <akash.goel@intel.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Tested-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2014-03-03 11:51:15 +02:00
Jani Nikula b6ab66aa5d drm/i915: use backlight legacy combination mode also for i915gm/i945gm
i915gm and i945gm also seem to use and need the legacy combination mode
bit in BLC_PWM_CTL.

v2: Also do this for i915gm (Ville).

Reported-and-tested-by: Luis Ortega <luiorpe1@gmail.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=75001
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2014-03-03 11:51:15 +02:00
Marius Knaust a6b92b6650 ALSA: hda - Added inverted digital-mic handling for Acer TravelMate 8371
Signed-off-by: Marius Knaust <marius.knaust@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-03-03 09:55:43 +01:00
Gabor Juhos 61d1cf163c spi: spi-ath79: fix initial GPIO CS line setup
The 'ath79_spi_setup_cs' function initializes the chip
select line of a given SPI device in order to make sure
that the device is inactive.

If the SPI_CS_HIGH bit is set for a given device, it
means that the CS line of that device is active HIGH
so it must be set to LOW initially. In case of GPIO
CS lines, the 'ath79_spi_setup_cs' function does the
opposite of that due to the wrong GPIO flags.

Fix the code to use the correct GPIO flags.

Reported-by: Ronald Wahl <ronald.wahl@raritan.com>
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
Cc: stable@vger.kernel.org
2014-03-03 12:38:52 +08:00
Dave Airlie 878eaf61be MAINTAINERS: update AGP tree to point at drm tree
Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-03-03 14:18:48 +10:00
Trond Myklebust 755a48a7a4 NFS: Fix a delegation callback race
The clean-up in commit 36281caa83 ended up removing a NULL pointer check
that is needed in order to prevent an Oops in
nfs_async_inode_return_delegation().

Reported-by: "Yan, Zheng" <zheng.z.yan@intel.com>
Link: http://lkml.kernel.org/r/5313E9F6.2020405@intel.com
Fixes: 36281caa83 (NFSv4: Further clean-ups of delegation stateid validation)
Cc: stable@vger.kernel.org # 3.4+
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2014-03-02 22:03:12 -05:00
Linus Torvalds 0414855fdc Linux 3.14-rc5 2014-03-02 18:56:16 -08:00
Gerry Demaret 635d61a373 USB AX88179/178A: Support D-Link DUB-1312
Add the USB device ID for the D-Link DUB-1312 USB 3.0 to Gigabit Ethernet
Adapter to the AX88179/178A driver.

Signed-off-by: Gerry Demaret <gerry@tigron.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-02 20:29:30 -05:00
Hauke Mehrtens 1d3f41ea0e b44: always set duplex mode why phy changes
Without this patch b44_check_phy() was called when the phy called the
adjust callback. This method only change the mac duplex mode when the
carrier was off. When the phy changed the duplex mode after the carrier
was on the mac was not changed. This happened when an external phy was
used.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-02 19:05:25 -05:00
Hauke Mehrtens 25d54fe565 b44: add calls to phy_{start,stop}
When support for external phys was added to b44, the calls to start and
stop the phy were missing in the mac driver. This adds the calls to
phy_start() and phy_stop().

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-02 19:05:25 -05:00
Linus Torvalds c59224d132 Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
 "Not a huge amount happening, some MAINTAINERS updates, radeon, vmwgfx
  and tegra fixes"

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  drm/vmwgfx: avoid null pointer dereference at failure paths
  drm/vmwgfx: Make sure backing mobs are cleared when allocated. Update driver date.
  drm/vmwgfx: Remove some unused surface formats
  drm/radeon: enable speaker allocation setup on dce3.2
  drm/radeon: change audio enable logic
  drm/radeon: fix audio disable on dce6+
  drm/radeon: free uvd ring on unload
  drm/radeon: disable pll sharing for DP on DCE4.1
  drm/radeon: fix missing bo reservation
  drm/radeon: print the supported atpx function mask
  MAINTAINERS: update drm git tree entry
  MAINTAINERS: add entry for drm radeon driver
  drm/tegra: Add guard to avoid double disable/enable of RGB outputs
  gpu: host1x: do not check previously handled gathers
  drm/tegra: fix typo 'CONFIG_TEGRA_DRM_FBDEV'
2014-03-02 15:25:45 -08:00
Li, Aubrey 3130497f5b ACPI / sleep: pm_power_off needs more sanity checks to be installed
Sleep control and status registers need santity checks as well before
ACPI installs acpi_power_off to pm_power_off hook. The checking code in
acpi_enter_sleep_state() is too late, we should not allow a not-working
pm_power_off function to be hooked up.

Signed-off-by: Aubrey Li <aubrey.li@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-03-03 00:21:14 +01:00
Linus Torvalds a53c8ceb01 USB fixes for 3.14-rc5
Here are 2 USB patches for 3.14-rc5, one a new device id, and the other
 fixes a reported problem with threaded irqs and the USB EHCI driver.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-3.14-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB fixes from Greg KH:
 "Here are 2 USB patches for 3.14-rc5, one a new device id, and the
  other fixes a reported problem with threaded irqs and the USB EHCI
  driver"

* tag 'usb-3.14-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  usb: ehci: fix deadlock when threadirqs option is used
  USB: ftdi_sio: add Cressi Leonardo PID
2014-03-02 15:15:07 -08:00
Linus Torvalds 3751c97036 Driver core fix for 3.14-rc5
Here is a single sysfs fix for 3.14-rc5.  It fixes a reported problem
 with the namespace code in sysfs.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-3.14-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull sysfs fix from Greg KH:
 "Here is a single sysfs fix for 3.14-rc5.  It fixes a reported problem
  with the namespace code in sysfs"

* tag 'driver-core-3.14-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
  sysfs: fix namespace refcnt leak
2014-03-02 15:13:41 -08:00
Linus Torvalds 9ff7aeb624 Staging tree fixes for 3.14-rc5
Here are a few IIO fixes, and a new device id for a staging driver for
 3.14-rc5.  All have been in linux-next for a while, I did a final merge
 to get the IIO fixes into this tree, they were incorrectly in the
 char-misc tree for a few weeks, and I forgot to tell you to pull them
 from there.  This makes it a single pull request for you.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-3.14-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging tree fixes from Greg KH:
 "Here are a few IIO fixes, and a new device id for a staging driver for
  3.14-rc5.  All have been in linux-next for a while, I did a final
  merge to get the IIO fixes into this tree, they were incorrectly in
  the char-misc tree for a few weeks, and I forgot to tell you to pull
  them from there.  This makes it a single pull request for you"

* tag 'staging-3.14-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  staging: r8188eu: Add new device ID
  staging:iio:adc:MXS:LRADC: fix touchscreen statemachine
  iio:gyro: bug on L3GD20H gyroscope support
  iio: cm32181: Change cm32181 ambient light sensor driver
  iio: cm36651: Fix read/write integration time function.
2014-03-02 15:12:54 -08:00