Commit Graph

482050 Commits

Author SHA1 Message Date
Roger Quadros
73b3a6657a pinctrl: dra: dt-bindings: Fix output pull up/down
For PIN_OUTPUT_PULLUP and PIN_OUTPUT_PULLDOWN we must not set the
PULL_DIS bit which disables the PULLs.

PULL_ENA is a 0 and using it in an OR operation is a NOP, so don't
use it in the PIN_OUTPUT_PULLUP/DOWN macros.

Fixes: 23d9cec07c ("pinctrl: dra: dt-bindings: Fix pull enable/disable")

Signed-off-by: Roger Quadros <rogerq@ti.com>
Acked-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-11-10 14:29:20 -08:00
Rabin Vincent
07906da788 tracing: Do not risk busy looping in buffer splice
If the read loop in trace_buffers_splice_read() keeps failing due to
memory allocation failures without reading even a single page then this
function will keep busy looping.

Remove the risk for that by exiting the function if memory allocation
failures are seen.

Link: http://lkml.kernel.org/r/1415309167-2373-2-git-send-email-rabin@rab.in

Signed-off-by: Rabin Vincent <rabin@rab.in>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2014-11-10 16:47:31 -05:00
Rabin Vincent
e30f53aad2 tracing: Do not busy wait in buffer splice
On a !PREEMPT kernel, attempting to use trace-cmd results in a soft
lockup:

 # trace-cmd record -e raw_syscalls:* -F false
 NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [trace-cmd:61]
 ...
 Call Trace:
  [<ffffffff8105b580>] ? __wake_up_common+0x90/0x90
  [<ffffffff81092e25>] wait_on_pipe+0x35/0x40
  [<ffffffff810936e3>] tracing_buffers_splice_read+0x2e3/0x3c0
  [<ffffffff81093300>] ? tracing_stats_read+0x2a0/0x2a0
  [<ffffffff812d10ab>] ? _raw_spin_unlock+0x2b/0x40
  [<ffffffff810dc87b>] ? do_read_fault+0x21b/0x290
  [<ffffffff810de56a>] ? handle_mm_fault+0x2ba/0xbd0
  [<ffffffff81095c80>] ? trace_event_buffer_lock_reserve+0x40/0x80
  [<ffffffff810951e2>] ? trace_buffer_lock_reserve+0x22/0x60
  [<ffffffff81095c80>] ? trace_event_buffer_lock_reserve+0x40/0x80
  [<ffffffff8112415d>] do_splice_to+0x6d/0x90
  [<ffffffff81126971>] SyS_splice+0x7c1/0x800
  [<ffffffff812d1edd>] tracesys_phase2+0xd3/0xd8

The problem is this: tracing_buffers_splice_read() calls
ring_buffer_wait() to wait for data in the ring buffers.  The buffers
are not empty so ring_buffer_wait() returns immediately.  But
tracing_buffers_splice_read() calls ring_buffer_read_page() with full=1,
meaning it only wants to read a full page.  When the full page is not
available, tracing_buffers_splice_read() tries to wait again with
ring_buffer_wait(), which again returns immediately, and so on.

Fix this by adding a "full" argument to ring_buffer_wait() which will
make ring_buffer_wait() wait until the writer has left the reader's
page, i.e.  until full-page reads will succeed.

Link: http://lkml.kernel.org/r/1415645194-25379-1-git-send-email-rabin@rab.in

Cc: stable@vger.kernel.org # 3.16+
Fixes: b1169cc69b ("tracing: Remove mock up poll wait function")
Signed-off-by: Rabin Vincent <rabin@rab.in>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2014-11-10 16:45:43 -05:00
Helge Deller
d8f5457ab9 parisc: Avoid using CONFIG_64BIT in userspace exported headers
The gcc compiler provide the predefined __LP64__ macro. Use that
instead.

Signed-off-by: Helge Deller <deller@gmx.de>
2014-11-10 22:25:29 +01:00
Helge Deller
2fe749f50b parisc: Use compat layer for msgctl, shmat, shmctl and semtimedop syscalls
Switch over the msgctl, shmat, shmctl and semtimedop syscalls to use the compat
layer. The problem was found with the debian procenv package, which called
	shmctl(0, SHM_INFO, &info);
in which the shmctl syscall then overwrote parts of the surrounding areas on
the stack on which the info variable was stored and thus lead to a segfault
later on.

Additionally fix the definition of struct shminfo64 to use unsigned longs like
the other architectures. This has no impact on userspace since we only have a
32bit userspace up to now.

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: John David Anglin <dave.anglin@bell.net>
Cc: <stable@vger.kernel.org> # v3.10+
2014-11-10 22:23:47 +01:00
Helge Deller
8dd95c68f3 parisc: Use BUILD_BUG() instead of undefined functions
Signed-off-by: Helge Deller <deller@gmx.de>
2014-11-10 22:22:42 +01:00
Helge Deller
e6be7bb8a3 parisc: Wire up bpf syscall
Signed-off-by: Helge Deller <deller@gmx.de>
2014-11-10 22:20:40 +01:00
Nishanth Menon
05eb20fa69 MAINTAINERS: Update entry for omap related .dts files to cover new SoCs
DRA7(including AM5x) and AM47x series are handled under OMAP umbrella.
These SoC support and dts have been added since 3.14 kernel and Pull
requests for these have come in from OMAP till date.

So just ensure that get_maintainers can pick up this list as well.

Cc: linux-omap@vger.kernel.org
Cc: devicetree@vger.kernel.org
Signed-off-by: Nishanth Menon <nm@ti.com>
Acked-by: Benoît Cousson <bcousson@baylibre.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-11-10 12:29:00 -08:00
Felipe Balbi
dc68cd11f5 MAINTAINERS: add more files under OMAP SUPPORT
These files are very important to the healt
of the OMAP architecture, specially when it
comes to PM support which currently we have
working for at least OMAP3 and we'd like
to know about any changes being made to our
PMICs and IRQ controllers.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-11-10 12:29:00 -08:00
Keerthy
5cd98a7a28 ARM: dts: AM437x-SK-EVM: Fix DCDC3 voltage
DCDC3 supplies voltage to DDR. Fix DCDC3 volatge to 1.5V which is the reset
value. Programming to a non-reset value while executing from DDR will result
in random hangs.

Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-11-10 12:28:54 -08:00
Keerthy
3015ddbd8b ARM: dts: AM437x-GP-EVM: Fix DCDC3 voltage
DCDC3 supplies voltage to DDR. Fix DCDC3 volatge to 1.5V which is the reset
value. Programming to a non-reset value while executing from DDR will result
in random hangs.

Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-11-10 12:28:54 -08:00
Keerthy
fc2a602f38 ARM: dts: AM43x-EPOS-EVM: Fix DCDC3 voltage
DCDC3 supplies voltage to DDR. Fix DCDC3 volatge to 1.5V which is the reset
value. Programming to a non-reset value while executing from DDR will result
in random hangs.

Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-11-10 12:28:53 -08:00
Joe Thornber
9b460d3699 dm btree: fix a recursion depth bug in btree walking code
The walk code was using a 'ro_spine' to hold it's locked btree nodes.
But this data structure is designed for the rolling lock scheme, and
as such automatically unlocks blocks that are two steps up the call
chain.  This is not suitable for the simple recursive walk algorithm,
which retraces its steps.

This code is only used by the persistent array code, which in turn is
only used by dm-cache.  In order to trigger it you need to have a
mapping tree that is more than 2 levels deep; which equates to 8-16
million cache blocks.  For instance a 4T ssd with a very small block
size of 32k only just triggers this bug.

The fix just places the locked blocks on the stack, and stops using
the ro_spine altogether.

Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Cc: stable@vger.kernel.org
2014-11-10 15:23:58 -05:00
Anish Bhatt
a815286b94 cxgb4 : Fix bug in DCB app deletion
Unlike CEE, IEEE has a bespoke app delete call and does not rely on priority
for app deletion

Fixes : 2376c879b8 ('cxgb4 : Improve handling of DCB negotiation or loss
 thereof')

Signed-off-by: Anish Bhatt <anish@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-10 15:13:53 -05:00
Jesse Gross
cfdf1e1ba5 udptunnel: Add SKB_GSO_UDP_TUNNEL during gro_complete.
When doing GRO processing for UDP tunnels, we never add
SKB_GSO_UDP_TUNNEL to gso_type - only the type of the inner protocol
is added (such as SKB_GSO_TCPV4). The result is that if the packet is
later resegmented we will do GSO but not treat it as a tunnel. This
results in UDP fragmentation of the outer header instead of (i.e.) TCP
segmentation of the inner header as was originally on the wire.

Signed-off-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-10 15:09:45 -05:00
David S. Miller
10b450cbbc Merge branch 'cxgb4-net'
Hariprasad Shenai says:

====================
cxgb4/cxgb4vf: Misc. fixes for cxgb4vf

For T5 use Packing and Padding Boundaries for SGE DMA transfers, move
fl_starve_thres to adpater structure, since they are different for each
adapter. The cxgb4vf driver's Free List Starvation Threshold needs to be larger
than the SGE's Egress Congestion Threshold or we'll end up in a mutual stall
where the driver waits for Ingress Packets to drive replacing Free List
Pointers and the SGE waits for Free List Pointers before pushing Ingress
Packets to the host.

The patches series is created against 'net' tree.
And includes patches on cxgb4 and cxgb4vf driver.

We have included all the maintainers of respective drivers. Kindly review the
change and let us know in case of any review comments.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-10 14:15:09 -05:00
Hariprasad Shenai
50d21a662d cxgb4vf: FL Starvation Threshold needs to be larger than the SGE's Egress Congestion Threshold
Free List Starvation Threshold needs to be larger than the SGE's Egress
Congestion Threshold or we'll end up in a mutual stall where the driver waits
for Ingress Packets to drive replacing Free List Pointers and the SGE waits for
Free List Pointers before pushing Ingress Packets to the host.

Based on original work by Casey Leedom <leedom@chelsio.com>

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-10 14:15:03 -05:00
Hariprasad Shenai
ce8f407a3c cxgb4/cxgb4vf: For T5 use Packing and Padding Boundaries for SGE DMA transfers
T5 introduces the ability to have separate Packing and Padding Boundaries
for SGE DMA transfers from the chip to Host Memory. This change set takes
advantage of that to set up a smaller Padding Boundary to conserve PCI Link
and Memory Bandwidth with T5.

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-10 14:15:03 -05:00
Hariprasad Shenai
65f6ecc93e cxgb4vf: Move fl_starv_thres into adapter->sge data structure
Move fl_starv_thres into adapter->sge data structure since it
_could_ be different from adapter to adapter.  Also move other per-adapter
SGE values which had been treated as driver globals into adapter->sge.

Based on original work by Casey Leedom <leedom@chelsio.com>

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-10 14:15:03 -05:00
Ingo Molnar
0cafa3e714 Two fixes for early microcode loader on 32-bit:
* access the dis_ucode_ldr chicken bit properly
 * fix patch stashing on AMD on 32-bit
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Merge tag 'microcode_fixes_for_3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp into x86/urgent

Pull two fixes for early microcode loader on 32-bit from Borislav Petkov:

 - access the dis_ucode_ldr chicken bit properly
 - fix patch stashing on AMD on 32-bit

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2014-11-10 17:08:01 +01:00
Tony Lindgren
481c7f868c mfd: twl4030-power: Fix poweroff with PM configuration enabled
Commit e7cd1d1eb1 ("mfd: twl4030-power: Add generic reset
configuration") enabled configuring the PM features for twl4030.

This caused poweroff command to fail on devices that have the
BCI charger on twl4030 wired, or have power wired for VBUS.
Instead of powering off, the device reboots. This is because
voltage is detected on charger or VBUS with the default bits
enabled for the power transition registers.

To fix the issue, let's just clear VBUS and CHG bits as we want
poweroff command to keep the system powered off.

Fixes: e7cd1d1eb1 ("mfd: twl4030-power: Add generic reset configuration")
Cc: stable@vger.kernel.org # v3.16+
Reported-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-11-10 15:22:04 +00:00
Krzysztof Kozlowski
c0acb8144b mfd: max77693: Fix always masked MUIC interrupts
All interrupts coming from MUIC were ignored because interrupt source
register was masked.

The Maxim 77693 has a "interrupt source" - a separate register and interrupts
which give information about PMIC block triggering the individual
interrupt (charger, topsys, MUIC, flash LED).

By default bootloader could initialize this register to "mask all"
value. In such case (observed on Trats2 board) MUIC interrupts won't be
generated regardless of their mask status. Regmap irq chip was unmasking
individual MUIC interrupts but the source was masked

Before introducing regmap irq chip this interrupt source was unmasked,
read and acked. Reading and acking is not necessary but unmasking is.

Fixes: 342d669c1e ("mfd: max77693: Handle IRQs using regmap")

Cc: <stable@vger.kernel.org>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-11-10 15:22:02 +00:00
Krzysztof Kozlowski
43fc9396ca mfd: max77693: Use proper regmap for handling MUIC interrupts
Interrupts coming from Maxim77693 MUIC block (MicroUSB Interface
Controller) were not handled at all because wrong regmap was used for
MUIC's regmap_irq_chip.

The MUIC component of Maxim 77693 uses different I2C address thus second
regmap is created and used by max77693 extcon driver. The registers for
MUIC interrupts are also in that block and should be handled by that
second regmap.

However the regmap irq chip for MUIC was configured with default regmap
which could not read MUIC registers.

Fixes: 342d669c1e ("mfd: max77693: Handle IRQs using regmap")

Cc: <stable@vger.kernel.org>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-11-10 15:22:01 +00:00
Johan Hovold
b668422872 mfd: viperboard: Fix platform-device id collision
Allow more than one viperboard to be connected by registering with
PLATFORM_DEVID_AUTO instead of PLATFORM_DEVID_NONE.

The subdevices are currently registered with PLATFORM_DEVID_NONE, which
will cause a name collision on the platform bus when a second viperboard
is plugged in:

viperboard 1-2.4:1.0: version 0.00 found at bus 001 address 004
------------[ cut here ]------------
WARNING: CPU: 0 PID: 181 at /home/johan/work/omicron/src/linux/fs/sysfs/dir.c:31 sysfs_warn_dup+0x74/0x84()
sysfs: cannot create duplicate filename '/bus/platform/devices/viperboard-gpio'
Modules linked in: i2c_viperboard viperboard netconsole [last unloaded: viperboard]
CPU: 0 PID: 181 Comm: bash Tainted: G        W      3.17.0-rc6 #1
[<c0016bf4>] (unwind_backtrace) from [<c0013860>] (show_stack+0x20/0x24)
[<c0013860>] (show_stack) from [<c04305f8>] (dump_stack+0x24/0x28)
[<c04305f8>] (dump_stack) from [<c0040fb4>] (warn_slowpath_common+0x80/0x98)
[<c0040fb4>] (warn_slowpath_common) from [<c004100c>] (warn_slowpath_fmt+0x40/0x48)
[<c004100c>] (warn_slowpath_fmt) from [<c016f1bc>] (sysfs_warn_dup+0x74/0x84)
[<c016f1bc>] (sysfs_warn_dup) from [<c016f548>] (sysfs_do_create_link_sd.isra.2+0xcc/0xd0)
[<c016f548>] (sysfs_do_create_link_sd.isra.2) from [<c016f588>] (sysfs_create_link+0x3c/0x48)
[<c016f588>] (sysfs_create_link) from [<c02867ec>] (bus_add_device+0x12c/0x1e0)
[<c02867ec>] (bus_add_device) from [<c0284820>] (device_add+0x410/0x584)
[<c0284820>] (device_add) from [<c0289440>] (platform_device_add+0xd8/0x26c)
[<c0289440>] (platform_device_add) from [<c02a5ae4>] (mfd_add_device+0x240/0x344)
[<c02a5ae4>] (mfd_add_device) from [<c02a5ce0>] (mfd_add_devices+0xb8/0x110)
[<c02a5ce0>] (mfd_add_devices) from [<bf00d1c8>] (vprbrd_probe+0x160/0x1b0 [viperboard])
[<bf00d1c8>] (vprbrd_probe [viperboard]) from [<c030c000>] (usb_probe_interface+0x1bc/0x2a8)
[<c030c000>] (usb_probe_interface) from [<c028768c>] (driver_probe_device+0x14c/0x3ac)
[<c028768c>] (driver_probe_device) from [<c02879e4>] (__driver_attach+0xa4/0xa8)
[<c02879e4>] (__driver_attach) from [<c0285698>] (bus_for_each_dev+0x70/0xa4)
[<c0285698>] (bus_for_each_dev) from [<c0287030>] (driver_attach+0x2c/0x30)
[<c0287030>] (driver_attach) from [<c030a288>] (usb_store_new_id+0x170/0x1ac)
[<c030a288>] (usb_store_new_id) from [<c030a2f8>] (new_id_store+0x34/0x3c)
[<c030a2f8>] (new_id_store) from [<c02853ec>] (drv_attr_store+0x30/0x3c)
[<c02853ec>] (drv_attr_store) from [<c016eaa8>] (sysfs_kf_write+0x5c/0x60)
[<c016eaa8>] (sysfs_kf_write) from [<c016dc68>] (kernfs_fop_write+0xd4/0x194)
[<c016dc68>] (kernfs_fop_write) from [<c010fe40>] (vfs_write+0xb4/0x1c0)
[<c010fe40>] (vfs_write) from [<c01104a8>] (SyS_write+0x4c/0xa0)
[<c01104a8>] (SyS_write) from [<c000f900>] (ret_fast_syscall+0x0/0x48)
---[ end trace 98e8603c22d65817 ]---
viperboard 1-2.4:1.0: Failed to add mfd devices to core.
viperboard: probe of 1-2.4:1.0 failed with error -17

Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-11-10 15:22:00 +00:00
Thierry Reding
451be64806 mfd: rtsx: Fix build warnings for !PM
rtsx_pci_power_off() is called only from rtsx_pci_suspend(), which isn't
built when PM is disabled.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-11-10 15:21:59 +00:00
Linus Walleij
871c3cf4ea mfd: stmpe: Fix STMPE24xx GPMR LSB
The least significat byte of the GPIO value read register
on the STMPE24xx series is on addres 0xA4 not 0xA5. Correct
against datasheet and tested on the STMPE2401 hardware.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-11-10 15:21:58 +00:00
Maurizio Lombardi
dc6311dd2a bnx2fc: fix tgt spinlock locking
bnx2fc_queuecommand(): when allocating a new io_req, the tgt_lock
spinlock must be locked before calling bnx2fc_cmd_alloc().

The spinlock should also be kept locked until bnx2fc_post_io_req() has
been completed.
If not, a kernel thread may call bnx2fc_process_cq_compl() that extracts
the newly allocated io_req from hba->cmd_mgr->cmds and destroys it while
it is still being used by bnx2fc_post_io_req().

BUG: unable to handle kernel NULL pointer dereference at 000000000000004c
IP: [<ffffffffa03130da>] bnx2fc_init_task+0x6a/0x230 [bnx2fc]
PGD 0
Oops: 0000 [#1] SMP
last sysfs file: /sys/devices/pci0000:00/0000:00:02.0/0000:04:00.3/net/eth3/type
CPU 33
Modules linked in: autofs4 target_core_iblock target_core_file target_core_pscsi target_core_mod configfs bnx2fc cnic uio fcoe libfcoe libfc scsi_transport_fc 8021q garp scsi_tgt stp llc cpufreq_ondemand freq_table pcc_cpufreq ipt_REJECT nf_conntrack_ipv4 nf_defrag_ipv4 iptable_filter ip_tables ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 xt_state nf_conntrack ip6table_filter ip6_tables ipv6 power_meter microcode iTCO_wdt iTCO_vendor_support hpilo hpwdt sg bnx2x libcrc32c mdio serio_raw lpc_ich mfd_core shpchp ext4 jbd2 mbcache sd_mod crc_t10dif hpsa video output dm_mirror dm_region_hash dm_log dm_mod [last unloaded: scsi_wait_scan]

Pid: 7355, comm: bnx2fc_thread/3 Not tainted 2.6.32-431.el6.x86_64 #1 HP ProLiant BL460c Gen8
RIP: 0010:[<ffffffffa03130da>]  [<ffffffffa03130da>] bnx2fc_init_task+0x6a/0x230 [bnx2fc]
RSP: 0018:ffff8820b0da3b68  EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff882003801080 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff882003801100
RBP: ffff8820b0da3bc8 R08: ffffffff8160d4e8 R09: 0000000000000040
R10: 0000000000000000 R11: 0000000000000000 R12: ffff88400e600e00
R13: ffff8840108fbe40 R14: ffff88200ffe5400 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8820b0da0000(0000) knlGS:0000000000000000
CS:  0010 DS: 0018 ES: 0018 CR0: 000000008005003b
CR2: 000000000000004c CR3: 0000002010b67000 CR4: 00000000001407e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process bnx2fc_thread/3 (pid: 7355, threadinfo ffff88401f940000, task ffff884012f5f540)
Stack:
 ffff8820b0da3bc8 ffffffff81527303 ffff884000000020 ffff8820b0da3bd8
<d> ffff8820b0da3b98 000000028138931a ffff88400f506078 ffff88400e600e00
<d> ffff88200ffe5400 ffff88200ffe5590 0000000000000021 0000000000000002
Call Trace:
 <IRQ>
 [<ffffffff81527303>] ? printk+0x41/0x46
 [<ffffffffa03169bc>] bnx2fc_post_io_req+0x11c/0x440 [bnx2fc]
 [<ffffffff812825b9>] ? cpumask_next_and+0x29/0x50
 [<ffffffff8137ffd0>] ? scsi_done+0x0/0x60
 [<ffffffffa0316df7>] bnx2fc_queuecommand+0x117/0x140 [bnx2fc]
 [<ffffffff81380245>] scsi_dispatch_cmd+0xe5/0x310
 [<ffffffff81388b9e>] scsi_request_fn+0x5ee/0x7a0
 [<ffffffff812658f1>] __blk_run_queue+0x31/0x40
 [<ffffffff81265a40>] blk_run_queue+0x30/0x50
 [<ffffffff81387da6>] scsi_run_queue+0xc6/0x270
 [<ffffffff81260f92>] ? elv_requeue_request+0x52/0xa0
 [<ffffffff813897a0>] scsi_requeue_command+0x90/0xb0
 [<ffffffff81389b84>] scsi_io_completion+0x154/0x6c0
 [<ffffffff8137ff62>] scsi_finish_command+0xc2/0x130
 [<ffffffff8138a255>] scsi_softirq_done+0x145/0x170
 [<ffffffff8126e865>] blk_done_softirq+0x85/0xa0
 [<ffffffff8107a8e1>] __do_softirq+0xc1/0x1e0
 [<ffffffff8100c30c>] ? call_softirq+0x1c/0x30
 [<ffffffff8100c30c>] call_softirq+0x1c/0x30
 <EOI>
 [<ffffffff8100fa75>] ? do_softirq+0x65/0xa0
 [<ffffffff8107a40a>] local_bh_enable_ip+0x9a/0xb0
 [<ffffffff8152a4eb>] _spin_unlock_bh+0x1b/0x20
 [<ffffffffa0313937>] bnx2fc_process_cq_compl+0x257/0x2b0 [bnx2fc]
 [<ffffffffa03114ea>] bnx2fc_percpu_io_thread+0xea/0x160 [bnx2fc]
 [<ffffffffa0311400>] ? bnx2fc_percpu_io_thread+0x0/0x160 [bnx2fc]
 [<ffffffff8109aef6>] kthread+0x96/0xa0
 [<ffffffff8100c20a>] child_rip+0xa/0x20
 [<ffffffff8109ae60>] ? kthread+0x0/0xa0
 [<ffffffff8100c200>] ? child_rip+0x0/0x20
Code: 89 df 45 8b 7e 30 0f 85 75 01 00 00 89 d1 31 c0 c1 e9 03 83 e2 04 89 c9 f3 48 ab 74 06 c7 07 00 00 00 00 49 89 9c 24 88 01 00 00 <83> 7e 4c 01 b8 01 00 00 00 0f 84 e7 00 00 00 89 c2 0a 53 38 41
RIP  [<ffffffffa03130da>] bnx2fc_init_task+0x6a/0x230 [bnx2fc]
 RSP <ffff8820b0da3b68>
CR2: 000000000000004c

Signed-off-by: Maurizio Lombardi <mlombard@redhat.com>
Acked-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-11-10 15:25:41 +01:00
Jiang Liu
c12de882e7 megaraid_sas: fix bug in handling return value of pci_enable_msix_range()
Function pci_enable_msix_range() may return negative values for error
conditions. So it's a bug by checking (pci_enable_msix_range() != 0)
for success and causes failure to megaraid driver when MSI is disabled.
[   16.487267] megaraid_sas 0000:02:00.0: Controller type: iMR
[   16.487275] genirq: Flags mismatch irq 0. 00000000 (megasas) vs. 00015a00 (tii
mer)
[   16.487347] megasas: Failed to register IRQ for vector 0.

Fixes: 8ae80ed173 "megaraid: Use pci_enable_msix_range() instead of pci_enable_msix()"

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Acked-by: Sumit Saxena <sumit.saxena@avagotech.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: <stable@vger.kernel.org> # 3.17
2014-11-10 15:25:41 +01:00
Anish Bhatt
7b07bf244a cxgb4i: send abort_rpl correctly
Connection retries were not being cleaned up correctly if they failed as a
result of link down. Applies on top of drivers-for-3.18.

Signed-off-by: Anish Bhatt <anish@chelsio.com>
Signed-off-by: Karen Xie <kxie@chelsio.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-11-10 15:25:29 +01:00
Anish Bhatt
d8ae3c3359 cxgbi: add maintainer for cxgb3i/cxgb4i
Signed-off-by: Anish Bhatt <anish@chelsio.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-11-10 15:24:03 +01:00
wenxiong@linux.vnet.ibm.com
333b2448cf scsi: TUR path is down after adapter gets reset with multipath
This patch fixes an issue with multipath ipr SAS devices which require a
start unit command to be issued following an adapter reset. Without this
patch, paths get marked failed following an adapter reset and since the
error handler never gets invoked to issue the start unit, the paths are
never recovered. Returning FAILED for this case ensures the error
handler wakes up to issue the start unit.

Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Tested-by: Wen Xiong <wenxiong@linux.vnet.ibm.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-11-10 15:23:27 +01:00
Christoph Hellwig
e925cc431a scsi: call device handler for failed TUR command
Multipath devices using the TUR path checker need to see the sense
code for a failed TUR command in their device handler.  Since commit
14216561e1 we always return success for mid
layer issued TUR commands before calling the device handler, which
stopped the TUR path checker from working.

Move the call to the device handler check sense method before the early
return for TUR commands to give the device handler a chance to intercept
them.

Signed-off-by: Christoph Hellwig <hch@infradead.org>
Tested-by: Wen Xiong <wenxiong@linux.vnet.ibm.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
2014-11-10 15:23:19 +01:00
Christoph Hellwig
48379270fe scsi: only re-lock door after EH on devices that were reset
Setups that use the blk-mq I/O path can lock up if a host with a single
device that has its door locked enters EH.  Make sure to only send the
command to re-lock the door to devices that actually were reset and thus
might have lost their state.  Otherwise the EH code might be get blocked
on blk_get_request as all requests for non-reset devices might be in use.

Cc: stable@vger.kernel.org
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reported-by: Meelis Roos <meelis.roos@ut.ee>
Tested-by: Meelis Roos <meelis.roos@ut.ee>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
2014-11-10 15:23:18 +01:00
Borislav Petkov
c0a717f23d x86, microcode, AMD: Fix ucode patch stashing on 32-bit
Save the patch while we're running on the BSP instead of later, before
the initrd has been jettisoned. More importantly, on 32-bit we need to
access the physical address instead of the virtual.

This way we actually do find it on the APs instead of having to go
through the initrd each time.

Tested-by: Richard Hendershot <rshendershot@mchsi.com>
Fixes: 5335ba5cf4 ("x86, microcode, AMD: Fix early ucode loading")
Cc: <stable@vger.kernel.org> # v3.13+
Signed-off-by: Borislav Petkov <bp@suse.de>
2014-11-10 13:50:55 +01:00
Boris Ostrovsky
54279552bd x86/core, x86/xen/smp: Use 'die_complete' completion when taking CPU down
Commit 2ed53c0d6c ("x86/smpboot: Speed up suspend/resume by
avoiding 100ms sleep for CPU offline during S3") introduced
completions to CPU offlining process. These completions are not
initialized on Xen kernels causing a panic in
play_dead_common().

Move handling of die_complete into common routines to make them
available to Xen guests.

Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Reviewed-by: David Vrabel <david.vrabel@citrix.com>
Cc: tianyu.lan@intel.com
Cc: konrad.wilk@oracle.com
Cc: xen-devel@lists.xenproject.org
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/r/1414770572-7950-1-git-send-email-boris.ostrovsky@oracle.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2014-11-10 11:16:40 +01:00
Chris Zankel
aeb5897342 Linux 3.18-rc4
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Merge tag 'v3.18-rc4' into for_next

Linux 3.18-rc4
2014-11-10 00:05:43 -08:00
Pali Rohár
9d720b34c0 Input: alps - allow up to 2 invalid packets without resetting device
On some Dell Latitude laptops ALPS device or Dell EC send one invalid byte
in 6 bytes ALPS packet. In this case psmouse driver enter out of sync
state. It looks like that all other bytes in packets are valid and also
device working properly. So there is no need to do full device reset, just
need to wait for byte which match condition for first byte (start of
packet). Because ALPS packets are bigger (6 or 8 bytes) default limit is
small.

This patch increase number of invalid bytes to size of 2 ALPS packets which
psmouse driver can drop before do full reset.

Resetting ALPS devices take some time and when doing reset on some Dell
laptops touchpad, trackstick and also keyboard do not respond. So it is
better to do it only if really necessary.

Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Tested-by: Pali Rohár <pali.rohar@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2014-11-09 22:58:38 -08:00
Takashi Iwai
85a8181329 ALSA: usb-audio: Fix Oops by composite quirk enhancement
The quirk argument itself was used as iterator, so it cannot be taken
back to the original value, obviously.

Fixes: d4b8fc66f7 ('ALSA: usb-audio: Allow multiple entries for the same iface in composite quirk')
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-10 07:44:47 +01:00
Takashi Iwai
48b217aa43 ALSA: pcm: Fix document for snd_pcm_stop_xrun()
Fix a copy & paste error:
 Warning(sound/core/pcm_native.c:1112): Excess function parameter 'state' description in 'snd_pcm_stop_xrun'

The state argument was dropped from snd_pcm_stop_xrun().

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-10 07:38:22 +01:00
Inki Dae
7afbfcc9ae drm/exynos: fix possible infinite loop issue
This patch fixes possible infinite loop issue by postponing
registration to non kms drivers after component_master_add_with_match
call, which can be incurred in all cases that non kms driver is probed
and then component bind is failed

This patch should be applied on top of below patches,
	http://comments.gmane.org/gmane.comp.video.dri.devel/117740
	http://www.spinics.net/lists/linux-samsung-soc/msg38624.html

Signed-off-by: Inki Dae <inki.dae@samsung.com>
2014-11-10 14:40:10 +09:00
Inki Dae
9ad703e943 drm/exynos: g2d: fix null pointer dereference
This patch fixes a null pointer dereference issue incurred by
calling g2d_remove when exynos_drm_platform_probe is failed.

cmdlist_pool of g2d is allocated when g2d sub driver is probed.
So if exynos_drm_platform_probe is failed, the g2d sub driver is
not probed and the cmdlist_pool is still NULL.

Signed-off-by: Inki Dae <inki.dae@samsung.com>
2014-11-10 14:40:09 +09:00
Inki Dae
f7c2f36f43 drm/exynos: resolve infinite loop issue on non multi-platform
This patch resovles the infinite loop issue incurred
when Exyno drm driver is enabled but all kms drivers
are disabled on Exynos board by returning -EPROBE_DEFER
only in case that there is kms device registered.

Signed-off-by: Inki Dae <inki.dae@samsung.com>
2014-11-10 14:40:07 +09:00
Inki Dae
06a2f5c2c4 drm/exynos: resolve infinite loop issue on multi-platform
This patch resolves temporarily infinite loop issue incurred
when Exynos drm driver is enabled and multi-platform kernel
is used by registering Exynos drm device object only in case
of Exynos SoC. So this patch will be replaced with more generic
way later.

Signed-off-by: Inki Dae <inki.dae@samsung.com>
2014-11-10 14:40:05 +09:00
Dave Airlie
03dca70852 Merge tag 'drm-intel-fixes-2014-11-07' of git://anongit.freedesktop.org/drm-intel into drm-fixes
Black screen, screen corruption, hardware state corruption fixes.

* tag 'drm-intel-fixes-2014-11-07' of git://anongit.freedesktop.org/drm-intel:
  drm/i915: safeguard against too high minimum brightness
  drm/i915: vlv: fix gunit HW state corruption during S4 suspend
  drm/i915: Disable caches for Global GTT.
2014-11-10 10:05:37 +10:00
Linus Torvalds
206c5f60a3 Linux 3.18-rc4 2014-11-09 14:55:29 -08:00
Linus Torvalds
ee867cf97a arm64 fixes:
- enable bpf syscall for compat
 - cpu_suspend fix when checking the idle state type
 - defconfig update
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes from Catalin Marinas:
 - enable bpf syscall for compat
 - cpu_suspend fix when checking the idle state type
 - defconfig update

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: defconfig: update defconfig for 3.18
  arm64: compat: Enable bpf syscall
  arm64: psci: fix cpu_suspend to check idle state type for index
2014-11-09 14:49:56 -08:00
Linus Torvalds
b1f368b58b ARM: SoC fixes for 3.18-rc4
Another quiet week:
 
 - A fix to silence edma probe error on non-supported platforms from Arnd
 - A fix to enable the PL clock for Parallella, to make mainline usable with
   the SDK.
 - A somewhat verbose fix for the PLL clock tree on VF610
 - Enabling of SD/MMC on one of the VF610-based boards (for testing)
 - A fix for i.MX where CONFIG_SPI used to be implicitly enabled and now needs
   to be added to the defconfig instead
 - Another maintainer added for bcm2835: Lee Jones
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Merge tag 'armsoc-for-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Olof Johansson:
 "Another quiet week:

   - a fix to silence edma probe error on non-supported platforms from
     Arnd
   - a fix to enable the PL clock for Parallella, to make mainline
     usable with the SDK.
   - a somewhat verbose fix for the PLL clock tree on VF610
   - enabling of SD/MMC on one of the VF610-based boards (for testing)
   - a fix for i.MX where CONFIG_SPI used to be implicitly enabled and
     now needs to be added to the defconfig instead
   - another maintainer added for bcm2835: Lee Jones"

* tag 'armsoc-for-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: dts: zynq: Enable PL clocks for Parallella
  dma: edma: move device registration to platform code
  ARM: dts: vf610: add SD node to cosmic dts
  MAINTAINERS: update bcm2835 entry
  ARM: imx: Fix the removal of CONFIG_SPI option
  ARM: imx: clk-vf610: define PLL's clock tree
2014-11-09 14:46:36 -08:00
Linus Torvalds
a315780977 Merge branch 'devicetree/merge' of git://git.kernel.org/pub/scm/linux/kernel/git/glikely/linux
Pull devicetree bugfix from Grant Likely:
 "One buffer overflow bug that shouldn't be left around"

* 'devicetree/merge' of git://git.kernel.org/pub/scm/linux/kernel/git/glikely/linux:
  of: Fix overflow bug in string property parsing functions
2014-11-09 14:33:49 -08:00
Linus Torvalds
c4c23fb6f2 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs
Pull btrfs fix from Chris Mason:
 "It's a one liner for an error cleanup path that leads to crashes"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
  Btrfs: fix kfree on list_head in btrfs_lookup_csums_range error cleanup
2014-11-09 14:30:24 -08:00
Linus Torvalds
0b0c7dbd98 Driver core fixes for 3.18-rc4
Here are 3 tiny fixes for 3.18-rc4.  One fixes up a long-stading race
 condition in the driver core for removing directories in
 /sys/devices/virtual/ and the other 2 fix up the wording of a new
 Kconfig option that was added in 3.18-rc1.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-3.18-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core fixes from Greg KH:
 "Here are 3 tiny fixes for 3.18-rc4.

  One fixes up a long-stading race condition in the driver core for
  removing directories in /sys/devices/virtual/ and the other 2 fix up
  the wording of a new Kconfig option that was added in 3.18-rc1"

* tag 'driver-core-3.18-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
  tiny: rename ENABLE_DEV_COREDUMP to ALLOW_DEV_COREDUMP
  tiny: reverse logic for DISABLE_DEV_COREDUMP
  sysfs: driver core: Fix glue dir race condition by gdp_mutex
2014-11-09 14:11:58 -08:00