deliverable/linux.git
9 years agoARM: 8177/1: cacheflush: Fix v7_exit_coherency_flush exynos build breakage on ARMv6
Krzysztof Kozlowski [Sun, 28 Sep 2014 04:36:46 +0000 (05:36 +0100)] 
ARM: 8177/1: cacheflush: Fix v7_exit_coherency_flush exynos build breakage on ARMv6

This fixes build breakage of platsmp.c if ARMv6 was chosen for compile
time options (e.g. by building allmodconfig):

$ make allmodconfig
$ make
  CC      arch/arm/mach-exynos/platsmp.o
/tmp/ccdQM0Eg.s: Assembler messages:
/tmp/ccdQM0Eg.s:432: Error: selected processor does not support ARM mode `isb '
/tmp/ccdQM0Eg.s:437: Error: selected processor does not support ARM mode `isb '
/tmp/ccdQM0Eg.s:438: Error: selected processor does not support ARM mode `dsb '
make[1]: *** [arch/arm/mach-exynos/platsmp.o] Error 1

The error was introduced in commit "ARM: EXYNOS: Move code from
hotplug.c to platsmp.c".  Previously code using
v7_exit_coherency_flush() macro was built with '-march=armv7-a' flag but
this flag dissapeared during the movement.

Fix this by annotating the v7_exit_coherency_flush() asm code with
armv7-a architecture.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reported-by: Mark Brown <broonie@kernel.org>
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
9 years agopinctrl: nomadik: improve GPIO debug prints
Linus Walleij [Tue, 30 Sep 2014 13:05:21 +0000 (15:05 +0200)] 
pinctrl: nomadik: improve GPIO debug prints

The debugfs file would only define if the line was "pulled" and
not which direction (pull up or pull down). Improve this by
taking two print paths depending on whether the pin is set as
input or output and use the data register directly to figure
out whether the pin is set for pull up or pull down.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agoMerge remote-tracking branches 'regulator/topic/tps65217', 'regulator/topic/tps65910...
Mark Brown [Tue, 30 Sep 2014 12:50:31 +0000 (13:50 +0100)] 
Merge remote-tracking branches 'regulator/topic/tps65217', 'regulator/topic/tps65910' and 'regulator/topic/voltage-ev' into regulator-next

9 years agoMerge remote-tracking branches 'regulator/topic/rk808', 'regulator/topic/rn5t618...
Mark Brown [Tue, 30 Sep 2014 12:50:30 +0000 (13:50 +0100)] 
Merge remote-tracking branches 'regulator/topic/rk808', 'regulator/topic/rn5t618' and 'regulator/topic/samsung' into regulator-next

9 years agoMerge remote-tracking branches 'regulator/topic/max1586', 'regulator/topic/max77802...
Mark Brown [Tue, 30 Sep 2014 12:50:29 +0000 (13:50 +0100)] 
Merge remote-tracking branches 'regulator/topic/max1586', 'regulator/topic/max77802' and 'regulator/topic/of' into regulator-next

9 years agoMerge remote-tracking branches 'regulator/topic/drivers', 'regulator/topic/enable...
Mark Brown [Tue, 30 Sep 2014 12:50:27 +0000 (13:50 +0100)] 
Merge remote-tracking branches 'regulator/topic/drivers', 'regulator/topic/enable', 'regulator/topic/fan53555', 'regulator/topic/hi6421' and 'regulator/topic/isl9305' into regulator-next

9 years agoMerge remote-tracking branches 'regulator/topic/as3711', 'regulator/topic/axp20x...
Mark Brown [Tue, 30 Sep 2014 12:50:25 +0000 (13:50 +0100)] 
Merge remote-tracking branches 'regulator/topic/as3711', 'regulator/topic/axp20x', 'regulator/topic/bcm590xx' and 'regulator/topic/da9211' into regulator-next

9 years agoMerge remote-tracking branch 'regulator/topic/core' into regulator-next
Mark Brown [Tue, 30 Sep 2014 12:50:25 +0000 (13:50 +0100)] 
Merge remote-tracking branch 'regulator/topic/core' into regulator-next

9 years agoMerge remote-tracking branches 'regulator/fix/da9211', 'regulator/fix/ltc3589' and...
Mark Brown [Tue, 30 Sep 2014 12:50:23 +0000 (13:50 +0100)] 
Merge remote-tracking branches 'regulator/fix/da9211', 'regulator/fix/ltc3589' and 'regulator/fix/tps65023' into regulator-linus

9 years agoregulator: da9211: Fix a bug in update of mask bit
James Ban [Mon, 29 Sep 2014 07:59:20 +0000 (16:59 +0900)] 
regulator: da9211: Fix a bug in update of mask bit

This is a patch for fixing a bug about mask bit operation.

Signed-off-by: James Ban <james.ban.opensource@diasemi.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
9 years agoASoC: ssm2602: do not hardcode type to SSM2602
Stefan Kristiansson [Mon, 29 Sep 2014 19:39:13 +0000 (22:39 +0300)] 
ASoC: ssm2602: do not hardcode type to SSM2602

The correct type (SSM2602/SSM2603/SSM2604) is passed down
from the ssm2602_spi_probe()/ssm2602_spi_probe() functions,
so use that instead of hardcoding it to SSM2602 in
ssm2602_probe().

Fixes: c924dc68f737 ("ASoC: ssm2602: Split SPI and I2C code into different modules")
Signed-off-by: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
Signed-off-by: Mark Brown <broonie@kernel.org>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: stable@vger.kernel.org
9 years agompc85xx_edac: Make L2 interrupt shared too
Borislav Petkov [Tue, 30 Sep 2014 10:55:41 +0000 (12:55 +0200)] 
mpc85xx_edac: Make L2 interrupt shared too

The other two interrupt handlers in this driver are shared, except this
one. When loading the driver, it fails like this.

So make the IRQ line shared.

Freescale(R) MPC85xx EDAC driver, (C) 2006 Montavista Software
mpc85xx_mc_err_probe: No ECC DIMMs discovered
EDAC DEVICE0: Giving out device to module MPC85xx_edac controller mpc85xx_l2_err: DEV mpc85xx_l2_err (INTERRUPT)
genirq: Flags mismatch irq 16. 00000000 ([EDAC] L2 err) vs. 00000080 ([EDAC] PCI err)
mpc85xx_l2_err_probe: Unable to request irq 16 for MPC85xx L2 err
remove_proc_entry: removing non-empty directory 'irq/16', leaking at least 'aerdrv'
------------[ cut here ]------------
WARNING: at fs/proc/generic.c:521
Modules linked in:
CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.17.0-rc5-dirty #1
task: ee058000 ti: ee046000 task.ti: ee046000
NIP: c016c0c4 LR: c016c0c4 CTR: c037b51c
REGS: ee047c10 TRAP: 0700 Not tainted (3.17.0-rc5-dirty)
MSR: 00029000 <CE,EE,ME> CR: 22008022 XER: 20000000

GPR00: c016c0c4 ee047cc0 ee058000 00000053 00029000 00000000 c037c744 00000003
GPR08: c09aab28 c09aab24 c09aab28 00000156 20008028 00000000 c0002ac8 00000000
GPR16: 00000000 00000000 00000000 00000000 00000000 00000000 00000139 c0950394
GPR24: c09f0000 ee5585b0 ee047d08 c0a10000 ee047d08 ee15f808 00000002 ee03f660
NIP [c016c0c4] remove_proc_entry
LR [c016c0c4] remove_proc_entry
Call Trace:
remove_proc_entry (unreliable)
unregister_irq_proc
free_desc
irq_free_descs
mpc85xx_l2_err_probe
platform_drv_probe
really_probe
__driver_attach
bus_for_each_dev
bus_add_driver
driver_register
mpc85xx_mc_init
do_one_initcall
kernel_init_freeable
kernel_init
ret_from_kernel_thread
Instruction dump: ...

Reported-and-tested-by: <lpb_098@163.com>
Acked-by: Johannes Thumshirn <johannes.thumshirn@men.de>
Cc: stable@vger.kernel.org
Signed-off-by: Borislav Petkov <bp@suse.de>
9 years agopinctrl: abx500: refactor DT parser to take two paths
Linus Walleij [Tue, 30 Sep 2014 09:22:07 +0000 (11:22 +0200)] 
pinctrl: abx500: refactor DT parser to take two paths

We refactor the DT parser to look for either a config or a
function and then look for further nodes and reserve maps,
not the two things mixed up like prior to this patch.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl: abx500: use helpers for map allocation/free
Linus Walleij [Tue, 30 Sep 2014 09:11:50 +0000 (11:11 +0200)] 
pinctrl: abx500: use helpers for map allocation/free

This switches the abx500 driver to use the pin control helper
utils for allocating and free:ing maps.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agoMerge tag 'asoc-v3.17-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie...
Takashi Iwai [Tue, 30 Sep 2014 08:24:05 +0000 (10:24 +0200)] 
Merge tag 'asoc-v3.17-rc6' of git://git./linux/kernel/git/broonie/sound into for-linus

ASoC: Fixes for v3.17

A few small driver specific fixes and a couple of error handling fixes
in the core.

9 years agohyperv: Fix a bug in netvsc_start_xmit()
KY Srinivasan [Mon, 29 Sep 2014 05:16:43 +0000 (22:16 -0700)] 
hyperv: Fix a bug in netvsc_start_xmit()

After the packet is successfully sent, we should not touch the skb
as it may have been freed. This patch is based on the work done by
Long Li <longli@microsoft.com>.

In this version of the patch I have fixed issues pointed out by David.
David, please queue this up for stable.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Tested-by: Long Li <longli@microsoft.com>
Tested-by: Sitsofe Wheeler <sitsofe@yahoo.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agoACPI / i915: Update the condition to ignore firmware backlight change request
Aaron Lu [Fri, 26 Sep 2014 02:30:08 +0000 (10:30 +0800)] 
ACPI / i915: Update the condition to ignore firmware backlight change request

Some of the Thinkpads' firmware will issue a backlight change request
through i915 operation region unconditionally on AC plug/unplug, the
backlight level used is arbitrary and thus should be ignored. This is
handled by commit 0b9f7d93ca61 (ACPI / i915: ignore firmware requests
for backlight change). Then there is a Dell laptop whose vendor backlight
interface also makes use of operation region to change backlight level
and with the above commit, that interface no long works. The condition
used to ignore the backlight change request from firmware is thus
changed to: if the vendor backlight interface is not in use and the ACPI
backlight interface is broken, we ignore the requests; oterwise, we keep
processing them.

Fixes: 0b9f7d93ca61 (ACPI / i915: ignore firmware requests for backlight change)
Link: https://lkml.org/lkml/2014/9/23/854
Reported-and-tested-by: Pali Rohár <pali.rohar@gmail.com>
Cc: 3.16+ <stable@vger.kernel.org> # 3.16+
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Acked-by: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
9 years agonet: stmmac: fix stmmac_pci_probe failed when CONFIG_HAVE_CLK is selected
Kweh, Hock Leong [Fri, 26 Sep 2014 13:42:55 +0000 (21:42 +0800)] 
net: stmmac: fix stmmac_pci_probe failed when CONFIG_HAVE_CLK is selected

When the CONFIG_HAVE_CLK is selected for the system, the stmmac_pci_probe
will fail with dmesg:
[    2.167225] stmmaceth 0000:00:14.6: enabling device (0000 -> 0002)
[    2.178267] stmmaceth 0000:00:14.6: enabling bus mastering
[    2.178436] stmmaceth 0000:00:14.6: irq 24 for MSI/MSI-X
[    2.178703] stmmaceth 0000:00:14.6: stmmac_dvr_probe: warning: cannot
get CSR clock
[    2.186503] stmmac_pci_probe: main driver probe failed
[    2.194003] stmmaceth 0000:00:14.6: disabling bus mastering
[    2.196473] stmmaceth: probe of 0000:00:14.6 failed with error -2

This patch fix the issue by breaking the dependency to devm_clk_get()
as the CSR clock can be obtained at priv->plat->clk_csr from pci driver.

Reported-by: Tobias Klausmann <tobias.johannes.klausmann@mni.thm.de>
Signed-off-by: Kweh, Hock Leong <hock.leong.kweh@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agoMerge remote-tracking branch 'regmap/topic/cache' into regmap-next
Mark Brown [Mon, 29 Sep 2014 19:49:42 +0000 (20:49 +0100)] 
Merge remote-tracking branch 'regmap/topic/cache' into regmap-next

9 years agoMerge remote-tracking branch 'regmap/topic/dt-endian' into regmap-next
Mark Brown [Mon, 29 Sep 2014 19:49:42 +0000 (20:49 +0100)] 
Merge remote-tracking branch 'regmap/topic/dt-endian' into regmap-next

9 years agoMerge remote-tracking branch 'regmap/topic/core' into regmap-next
Mark Brown [Mon, 29 Sep 2014 19:49:41 +0000 (20:49 +0100)] 
Merge remote-tracking branch 'regmap/topic/core' into regmap-next

9 years agoMerge remote-tracking branch 'regmap/fix/debugfs' into regmap-linus
Mark Brown [Mon, 29 Sep 2014 19:49:40 +0000 (20:49 +0100)] 
Merge remote-tracking branch 'regmap/fix/debugfs' into regmap-linus

9 years agoMerge remote-tracking branch 'regmap/fix/core' into regmap-linus
Mark Brown [Mon, 29 Sep 2014 19:49:40 +0000 (20:49 +0100)] 
Merge remote-tracking branch 'regmap/fix/core' into regmap-linus

9 years agoematch: Fix matching of inverted containers.
Ignacy Gawędzki [Wed, 24 Sep 2014 16:38:39 +0000 (18:38 +0200)] 
ematch: Fix matching of inverted containers.

Negated expressions and sub-expressions need to have their flags checked for
TCF_EM_INVERT and their result negated accordingly.

Signed-off-by: Ignacy Gawędzki <ignacy.gawedzki@green-communications.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agogro: fix aggregation for skb using frag_list
Eric Dumazet [Mon, 29 Sep 2014 17:34:29 +0000 (10:34 -0700)] 
gro: fix aggregation for skb using frag_list

In commit 8a29111c7ca6 ("net: gro: allow to build full sized skb")
I added a regression for linear skb that traditionally force GRO
to use the frag_list fallback.

Erez Shitrit found that at most two segments were aggregated and
the "if (skb_gro_len(p) != pinfo->gso_size)" test was failing.

This is because pinfo at this spot still points to the last skb in the
chain, instead of the first one, where we find the correct gso_size
information.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Fixes: 8a29111c7ca6 ("net: gro: allow to build full sized skb")
Reported-by: Erez Shitrit <erezsh@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agoregmap: Fix debugfs-file 'registers' mode
Markus Pargmann [Mon, 8 Sep 2014 06:43:37 +0000 (08:43 +0200)] 
regmap: Fix debugfs-file 'registers' mode

The macro "REGMAP_ALLOW_WRITE_DEBUGFS" can be used to enable write
support on the registers file in the debugfs. The mode of the file is
fixed to 0400 so it is not possible to write the file ever.

This patch fixes the mode by setting it to the correct value depending
on the macro.

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
9 years agospi: fsl: Sort include headers alphabetically
Xiubo Li [Mon, 29 Sep 2014 02:57:06 +0000 (10:57 +0800)] 
spi: fsl: Sort include headers alphabetically

Sort all the include headers alphabetically for the freescale
spi drivers. If the inlcude headers sorted out of order, maybe
the best logical choice is to append new ones after the exist
ones, while this may create a lot of potential for duplicates
and conflicts for each diffenent changes will add new headers
in the same location.

Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
9 years agopinctrl: alter device tree bindings for functions
Linus Walleij [Mon, 29 Sep 2014 15:13:40 +0000 (17:13 +0200)] 
pinctrl: alter device tree bindings for functions

For function and group configuration nodes, use "function"
"groups" string pairs, not "pins" where there should be
"groups".

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl: nomadik: refactor DT parser to take two paths
Linus Walleij [Mon, 29 Sep 2014 14:54:14 +0000 (16:54 +0200)] 
pinctrl: nomadik: refactor DT parser to take two paths

We refactor the DT parser to look for either a config or a
function and then look for further nodes and reserve maps,
not the two things mixed up like prior to this patch.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agodrm/i915: Flush the PTEs after updating them before suspend
Chris Wilson [Thu, 25 Sep 2014 09:13:12 +0000 (10:13 +0100)] 
drm/i915: Flush the PTEs after updating them before suspend

As we use WC updates of the PTE, we are responsible for notifying the
hardware when to flush its TLBs. Do so after we zap all the PTEs before
suspend (and the BIOS tries to read our GTT).

Fixes a regression from

commit 828c79087cec61eaf4c76bb32c222fbe35ac3930
Author: Ben Widawsky <benjamin.widawsky@intel.com>
Date:   Wed Oct 16 09:21:30 2013 -0700

    drm/i915: Disable GGTT PTEs on GEN6+ suspend

that survived and continue to cause harm even after

commit e568af1c626031925465a5caaab7cca1303d55c7
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Wed Mar 26 20:08:20 2014 +0100

    drm/i915: Undo gtt scratch pte unmapping again

v2: Trivial rebase.
v3: Fixes requires pointer dances.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=82340
Tested-by: ming.yao@intel.com
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@vger.kernel.org
Cc: Takashi Iwai <tiwai@suse.de>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Todd Previte <tprevite@gmail.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
9 years agocpufreq: integrator: fix integrator_cpufreq_remove return type
Arnd Bergmann [Fri, 26 Sep 2014 20:19:12 +0000 (22:19 +0200)] 
cpufreq: integrator: fix integrator_cpufreq_remove return type

When building this driver as a module, we get a helpful warning
about the return type:

drivers/cpufreq/integrator-cpufreq.c:232:2: warning: initialization from incompatible pointer type
  .remove = __exit_p(integrator_cpufreq_remove),

If the remove callback returns void, the caller gets an undefined
value as it expects an integer to be returned. This fixes the
problem by passing down the value from cpufreq_unregister_driver.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: All applicable <stable@vger.kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
9 years agocpufreq: pcc-cpufreq: Fix wait_event() under spinlock
Rafael J. Wysocki [Sat, 27 Sep 2014 19:56:08 +0000 (21:56 +0200)] 
cpufreq: pcc-cpufreq: Fix wait_event() under spinlock

Fix the following bug introduced by commit 8fec051eea73 (cpufreq:
Convert existing drivers to use cpufreq_freq_transition_{begin|end})
that forgot to move the spin_lock() in pcc_cpufreq_target() past
cpufreq_freq_transition_begin() which calls wait_event():

BUG: sleeping function called from invalid context at drivers/cpufreq/cpufreq.c:370
in_atomic(): 1, irqs_disabled(): 0, pid: 2636, name: modprobe
Preemption disabled at:[<ffffffffa04d74d7>] pcc_cpufreq_target+0x27/0x200 [pcc_cpufreq]
[   51.025044]
CPU: 57 PID: 2636 Comm: modprobe Tainted: G            E  3.17.0-default #7
Hardware name: Hewlett-Packard ProLiant DL980 G7, BIOS P66 07/07/2010
 00000000ffffffff ffff88026c46b828 ffffffff81589dbd 0000000000000000
 ffff880037978090 ffff88026c46b848 ffffffff8108e1df ffff880037978090
 0000000000000000 ffff88026c46b878 ffffffff8108e298 ffff88026d73ec00
Call Trace:
 [<ffffffff81589dbd>] dump_stack+0x4d/0x90
 [<ffffffff8108e1df>] ___might_sleep+0x10f/0x180
 [<ffffffff8108e298>] __might_sleep+0x48/0xd0
 [<ffffffff8145b905>] cpufreq_freq_transition_begin+0x75/0x140 drivers/cpufreq/cpufreq.c:370 wait_event(policy->transition_wait, !policy->transition_ongoing);
 [<ffffffff8108fc99>] ? preempt_count_add+0xb9/0xc0
 [<ffffffffa04d7513>] pcc_cpufreq_target+0x63/0x200 [pcc_cpufreq] drivers/cpufreq/pcc-cpufreq.c:207 spin_lock(&pcc_lock);
 [<ffffffff810e0d0f>] ? update_ts_time_stats+0x7f/0xb0
 [<ffffffff8145be55>] __cpufreq_driver_target+0x85/0x170
 [<ffffffff8145e4c8>] od_check_cpu+0xa8/0xb0
 [<ffffffff8145ef10>] dbs_check_cpu+0x180/0x1d0
 [<ffffffff8145f310>] cpufreq_governor_dbs+0x3b0/0x720
 [<ffffffff8145ebe3>] od_cpufreq_governor_dbs+0x33/0xe0
 [<ffffffff814593d9>] __cpufreq_governor+0xa9/0x210
 [<ffffffff81459fb2>] cpufreq_set_policy+0x1e2/0x2e0
 [<ffffffff8145a6cc>] cpufreq_init_policy+0x8c/0x110
 [<ffffffff8145c9a0>] ? cpufreq_update_policy+0x1b0/0x1b0
 [<ffffffff8108fb99>] ? preempt_count_sub+0xb9/0x100
 [<ffffffff8145c6c6>] __cpufreq_add_dev+0x596/0x6b0
 [<ffffffffa016c608>] ? pcc_cpufreq_probe+0x4b4/0x4b4 [pcc_cpufreq]
 [<ffffffff8145c7ee>] cpufreq_add_dev+0xe/0x10
 [<ffffffff81408e81>] subsys_interface_register+0xc1/0xf0
 [<ffffffff8108fb99>] ? preempt_count_sub+0xb9/0x100
 [<ffffffff8145b3d7>] cpufreq_register_driver+0x117/0x2a0
 [<ffffffffa016c65d>] pcc_cpufreq_init+0x55/0x9f8 [pcc_cpufreq]
 [<ffffffffa016c608>] ? pcc_cpufreq_probe+0x4b4/0x4b4 [pcc_cpufreq]
 [<ffffffff81000298>] do_one_initcall+0xc8/0x1f0
 [<ffffffff811a731d>] ? __vunmap+0x9d/0x100
 [<ffffffff810eb9a0>] do_init_module+0x30/0x1b0
 [<ffffffff810edfa6>] load_module+0x686/0x710
 [<ffffffff810ebb20>] ? do_init_module+0x1b0/0x1b0
 [<ffffffff810ee1db>] SyS_init_module+0x9b/0xc0
 [<ffffffff8158f7a9>] system_call_fastpath+0x16/0x1b

Fixes: 8fec051eea73 (cpufreq: Convert existing drivers to use cpufreq_freq_transition_{begin|end})
Reported-and-tested-by: Mike Galbraith <umgwanakikbuti@gmail.com>
Cc: 3.15+ <stable@vger.kernel.org> # 3.15+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
9 years agopinctrl: nomadik: use utils map free function
Linus Walleij [Mon, 29 Sep 2014 13:22:20 +0000 (15:22 +0200)] 
pinctrl: nomadik: use utils map free function

Stop brewing our own map free function and rely on the pinctrl
utils helpers.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl: nomadik: use util function to reserve maps
Linus Walleij [Mon, 29 Sep 2014 13:17:04 +0000 (15:17 +0200)] 
pinctrl: nomadik: use util function to reserve maps

Stop brewing our own pin map reservation function and use the
generic code.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agoRevert "[media] media: em28xx - remove reset_resume interface"
Mauro Carvalho Chehab [Fri, 26 Sep 2014 09:53:15 +0000 (06:53 -0300)] 
Revert "[media] media: em28xx - remove reset_resume interface"

The reset_resume call is needed, otherwise it will break resume
on some conditions, depending on the usb ehci/xhci controller.

This reverts commit b89193e0b06f44f48e3bf897a5b5cb4a7aff3359.

Reported-by: Johannes Stezenbach <js@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
9 years agoLinux 3.17-rc7
Linus Torvalds [Sun, 28 Sep 2014 21:29:07 +0000 (14:29 -0700)] 
Linux 3.17-rc7

9 years agoneigh: check error pointer instead of NULL for ipv4_neigh_lookup()
WANG Cong [Thu, 25 Sep 2014 00:07:53 +0000 (17:07 -0700)] 
neigh: check error pointer instead of NULL for ipv4_neigh_lookup()

Fixes: commit f187bc6efb7250afee0e2009b6106 ("ipv4: No need to set generic neighbour pointer")
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agoMerge branch 'fixes' of git://git.infradead.org/users/vkoul/slave-dma
Linus Torvalds [Sun, 28 Sep 2014 20:45:16 +0000 (13:45 -0700)] 
Merge branch 'fixes' of git://git.infradead.org/users/vkoul/slave-dma

Pull slave-dmaengine fixes from Vinod Koul:
 "Two small fixes for omap dmaengine driver which fixes cyclic suspend
  and resume"

* 'fixes' of git://git.infradead.org/users/vkoul/slave-dma:
  dmaengine: omap-dma: Restore the CLINK_CTRL in resume path
  dmaengine: omap-dma: Add memory barrier to dma_resume path

9 years agoMerge branch 'ipv6_tunnel'
David S. Miller [Sun, 28 Sep 2014 20:19:52 +0000 (16:19 -0400)] 
Merge branch 'ipv6_tunnel'

Steffen Klassert says:

====================
ipv6: Return an error when adding an already existing tunnel

The ipv6 tunnel locate functions should not return an existing
tunnel if create is true. Otherwise it is possible to add the
same tunnel multiple times without getting an error.

All our ipv6 tunnels have this bug from the very beginning.
Only the sit tunnel was fixed some years ago with:

commit 8db99e57175 ("sit: Fail to create tunnel, if it already exists").

This patchset fixes the remaining ipv6 tunnels.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agoip6_gre: Return an error when adding an existing tunnel.
Steffen Klassert [Mon, 22 Sep 2014 08:07:26 +0000 (10:07 +0200)] 
ip6_gre: Return an error when adding an existing tunnel.

ip6gre_tunnel_locate() should not return an existing tunnel if
create is true. Otherwise it is possible to add the same
tunnel multiple times without getting an error.

So return NULL if the tunnel that should be created already
exists.

Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agoip6_vti: Return an error when adding an existing tunnel.
Steffen Klassert [Mon, 22 Sep 2014 08:07:25 +0000 (10:07 +0200)] 
ip6_vti: Return an error when adding an existing tunnel.

vti6_locate() should not return an existing tunnel if
create is true. Otherwise it is possible to add the same
tunnel multiple times without getting an error.

So return NULL if the tunnel that should be created already
exists.

Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agoip6_tunnel: Return an error when adding an existing tunnel.
Steffen Klassert [Mon, 22 Sep 2014 08:07:24 +0000 (10:07 +0200)] 
ip6_tunnel: Return an error when adding an existing tunnel.

ip6_tnl_locate() should not return an existing tunnel if
create is true. Otherwise it is possible to add the same
tunnel multiple times without getting an error.

So return NULL if the tunnel that should be created already
exists.

Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agonet: make tcp_cleanup_rbuf private
Dan Williams [Tue, 31 Dec 2013 01:12:07 +0000 (17:12 -0800)] 
net: make tcp_cleanup_rbuf private

net_dma was the only external user so this can become local to tcp.c
again.

Cc: James Morris <jmorris@namei.org>
Cc: Patrick McHardy <kaber@trash.net>
Cc: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
Acked-by: Neal Cardwell <ncardwell@google.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
9 years agonet_dma: revert 'copied_early'
Dan Williams [Mon, 30 Dec 2013 19:37:15 +0000 (11:37 -0800)] 
net_dma: revert 'copied_early'

Now that tcp_dma_try_early_copy() is gone nothing ever sets
copied_early.

Also reverts "53240c208776 tcp: Fix possible double-ack w/ user dma"
since it is no longer necessary.

Cc: Ali Saidi <saidi@engin.umich.edu>
Cc: James Morris <jmorris@namei.org>
Cc: Patrick McHardy <kaber@trash.net>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
Cc: Neal Cardwell <ncardwell@google.com>
Reported-by: Dave Jones <davej@redhat.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
9 years agonet_dma: simple removal
Dan Williams [Mon, 30 Dec 2013 20:37:29 +0000 (12:37 -0800)] 
net_dma: simple removal

Per commit "77873803363c net_dma: mark broken" net_dma is no longer used
and there is no plan to fix it.

This is the mechanical removal of bits in CONFIG_NET_DMA ifdef guards.
Reverting the remainder of the net_dma induced changes is deferred to
subsequent patches.

Marked for stable due to Roman's report of a memory leak in
dma_pin_iovec_pages():

    https://lkml.org/lkml/2014/9/3/177

Cc: Dave Jiang <dave.jiang@intel.com>
Cc: Vinod Koul <vinod.koul@intel.com>
Cc: David Whipple <whipple@securedatainnovations.ch>
Cc: Alexander Duyck <alexander.h.duyck@intel.com>
Cc: <stable@vger.kernel.org>
Reported-by: Roman Gushchin <klamm@yandex-team.ru>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
9 years agoMerge remote-tracking branches 'asoc/fix/atmel', 'asoc/fix/compress', 'asoc/fix/core...
Mark Brown [Sun, 28 Sep 2014 11:25:12 +0000 (12:25 +0100)] 
Merge remote-tracking branches 'asoc/fix/atmel', 'asoc/fix/compress', 'asoc/fix/core', 'asoc/fix/fsl-ssi' and 'asoc/fix/rt286' into asoc-linus

9 years agoMerge remote-tracking branch 'regulator/topic/sky81452' into regulator-drivers
Mark Brown [Sun, 28 Sep 2014 11:17:00 +0000 (12:17 +0100)] 
Merge remote-tracking branch 'regulator/topic/sky81452' into regulator-drivers

Conflicts:
drivers/regulator/Kconfig
drivers/regulator/Makefile

9 years agoMerge remote-tracking branch 'regulator/topic/pwm' into regulator-drivers
Mark Brown [Sun, 28 Sep 2014 11:14:26 +0000 (12:14 +0100)] 
Merge remote-tracking branch 'regulator/topic/pwm' into regulator-drivers

Conflicts:
drivers/regulator/Kconfig

9 years agoregmap: fix possible ZERO_SIZE_PTR pointer dereferencing error.
Xiubo Li [Sun, 28 Sep 2014 09:09:54 +0000 (17:09 +0800)] 
regmap: fix possible ZERO_SIZE_PTR pointer dereferencing error.

Since we cannot make sure the 'val_count' will always be none zero
here, and then if it equals to zero, the kmemdup() will return
ZERO_SIZE_PTR, which equals to ((void *)16).

So this patch fix this with just doing the zero check before calling
kmemdup().

Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
9 years agoregmap: debugfs: fix possbile NULL pointer dereference
Xiubo Li [Sun, 28 Sep 2014 03:35:25 +0000 (11:35 +0800)] 
regmap: debugfs: fix possbile NULL pointer dereference

If 'map->dev' is NULL and there will lead dev_name() to be NULL pointer
dereference. So before dev_name(), we need to have check of the map->dev
pionter.

We also should make sure that the 'name' pointer shouldn't be NULL for
debugfs_create_dir(). So here using one default "dummy" debugfs name when
the 'name' pointer and 'map->dev' are both NULL.

Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
9 years agoASoC: core: fix possible ZERO_SIZE_PTR pointer dereferencing error.
Xiubo Li [Sun, 28 Sep 2014 09:29:37 +0000 (17:29 +0800)] 
ASoC: core: fix possible ZERO_SIZE_PTR pointer dereferencing error.

Since we cannot make sure the 'params->num_regs' will always be none
zero here, and then if it equals to zero, the kmemdup() will return
ZERO_SIZE_PTR, which equals to ((void *)16).

So this patch fix this with just doing the zero check before calling
kmemdup().

Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
9 years agoMAINTAINERS: add atmel audio alsa driver maintainer entry
Bo Shen [Sun, 28 Sep 2014 01:57:19 +0000 (09:57 +0800)] 
MAINTAINERS: add atmel audio alsa driver maintainer entry

Signed-off-by: Bo Shen <voice.shen@atmel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
9 years agoregulator: pwm-regulator: add devicetree bindings for pwm regulator
Chris Zhong [Sun, 28 Sep 2014 02:28:54 +0000 (10:28 +0800)] 
regulator: pwm-regulator: add devicetree bindings for pwm regulator

Document the pwm regulator

Signed-off-by: Chris Zhong <zyw@rock-chips.com>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
9 years agoregulator: pwm-regulator: get voltage and duty table from dts
Chris Zhong [Sun, 28 Sep 2014 02:28:53 +0000 (10:28 +0800)] 
regulator: pwm-regulator: get voltage and duty table from dts

rename st-pwm to pwm-regulator. And support getting voltage & duty table from
device tree, other platforms can also use this driver without any modify.

Signed-off-by: Chris Zhong <zyw@rock-chips.com>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Tested-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
9 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Linus Torvalds [Sun, 28 Sep 2014 00:05:14 +0000 (17:05 -0700)] 
Merge branch 'for-linus' of git://git./linux/kernel/git/viro/vfs

Pull vfs fixes from Al Viro:
 "Assorted fixes + unifying __d_move() and __d_materialise_dentry() +
  minimal regression fix for d_path() of victims of overwriting rename()
  ported on top of that"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  vfs: Don't exchange "short" filenames unconditionally.
  fold swapping ->d_name.hash into switch_names()
  fold unlocking the children into dentry_unlock_parents_for_move()
  kill __d_materialise_dentry()
  __d_materialise_dentry(): flip the order of arguments
  __d_move(): fold manipulations with ->d_child/->d_subdirs
  don't open-code d_rehash() in d_materialise_unique()
  pull rehashing and unlocking the target dentry into __d_materialise_dentry()
  ufs: deal with nfsd/iget races
  fuse: honour max_read and max_write in direct_io mode
  shmem: fix nlink for rename overwrite directory

9 years agoMerge branch 'for-3.17-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj...
Linus Torvalds [Sat, 27 Sep 2014 23:45:33 +0000 (16:45 -0700)] 
Merge branch 'for-3.17-fixes' of git://git./linux/kernel/git/tj/cgroup

Pull cgroup fixes from Tejun Heo:
 "This is quite late but these need to be backported anyway.

  This is the fix for a long-standing cpuset bug which existed from
  2009.  cpuset makes use of PF_SPREAD_{PAGE|SLAB} flags to modify the
  task's memory allocation behavior according to the settings of the
  cpuset it belongs to; unfortunately, when those flags have to be
  changed, cpuset did so directly even whlie the target task is running,
  which is obviously racy as task->flags may be modified by the task
  itself at any time.  This obscure bug manifested as corrupt
  PF_USED_MATH flag leading to a weird crash.

  The bug is fixed by moving the flag to task->atomic_flags.  The first
  two are prepatory ones to help defining atomic_flags accessors and the
  third one is the actual fix"

* 'for-3.17-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
  cpuset: PF_SPREAD_PAGE and PF_SPREAD_SLAB should be atomic flags
  sched: add macros to define bitops for task atomic flags
  sched: fix confusing PFA_NO_NEW_PRIVS constant

9 years agoMerge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm...
Linus Torvalds [Sat, 27 Sep 2014 21:58:59 +0000 (14:58 -0700)] 
Merge tag 'fixes-for-linus' of git://git./linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Olof Johansson:
 "Here's our last set of fixes for 3.17.  Most of these are for TI
  platforms, fixing some noisy Kconfig issues, runtime clock and power
  issues on several platforms and NAND timings on DRA7.

  There are also a couple of bug fixes for i.MX, one for QCOM and a
 small fix to avoid section mismatch noise on PXA.

  Diffstat looks large, partially due to some tables being updated and
  thus touching many lines.  The qcom gsbi change also restructures
  clock management a bit and thus touches a bunch of lines.

  All in all, a bit more changes than we'd like at this point, but
  nothing stands out as risky either so it seems like the right thing to
  send it up now instead of holding it to the merge window"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  drivers/soc: qcom: do not disable the iface clock in probe
  ARM: imx: fix .is_enabled() of shared gate clock
  ARM: OMAP3: Fix I/O chain clock line assertion timed out error
  ARM: keystone: dts: fix bindings for pcie and usb clock nodes
  bus: omap_l3_noc: Fix connID for OMAP4
  ARM: DT: imx53: fix lvds channel 1 port
  ARM: dts: cm-t54: fix serial console power supply.
  ARM: dts: dra7-evm: Fix NAND GPMC timings
  ARM: pxa: fix section mismatch warning for pxa_timer_nodt_init
  ARM: OMAP: Fix Kconfig warning for omap1

9 years agoMerge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Linus Torvalds [Sat, 27 Sep 2014 21:42:18 +0000 (14:42 -0700)] 
Merge branch 'upstream' of git://git.linux-mips.org/ralf/upstream-linus

Pull MIPS fixes from Ralf Baechle:
 "The final round of fixes.  One corner case in the math emulator and
  another one in the mcount function for ftrace"

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
  MIPS: mcount: Adjust stack pointer for static trace in MIPS32
  MIPS: Fix MFC1 & MFHC1 emulation for 64-bit MIPS systems

9 years agoMerge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sat, 27 Sep 2014 21:23:13 +0000 (14:23 -0700)] 
Merge branch 'x86-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull x86 fixes from Ingo Molnar:
 "This has:

   - EFI revert to fix a boot regression
   - early_ioremap() fix for boot failure
   - KASLR fix for possible boot failures
   - EFI fix for corrupted string printing
   - remove a misleading EFI bootup 'failed!' error message

  Unfortunately it's all rather close to the merge window"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/efi: Truncate 64-bit values when calling 32-bit OutputString()
  x86/efi: Delete misleading efi_printk() error message
  Revert "efi/x86: efistub: Move shared dependencies to <asm/efi.h>"
  x86/kaslr: Avoid the setup_data area when picking location
  x86 early_ioremap: Increase FIX_BTMAPS_SLOTS to 8

9 years agovfs: Don't exchange "short" filenames unconditionally.
Mikhail Efremov [Wed, 24 Sep 2014 18:14:33 +0000 (22:14 +0400)] 
vfs: Don't exchange "short" filenames unconditionally.

Only exchange source and destination filenames
if flags contain RENAME_EXCHANGE.
In case if executable file was running and replaced by
other file /proc/PID/exe should still show correct file name,
not the old name of the file by which it was replaced.

The scenario when this bug manifests itself was like this:
* ALT Linux uses rpm and start-stop-daemon;
* during a package upgrade rpm creates a temporary file
  for an executable to rename it upon successful unpacking;
* start-stop-daemon is run subsequently and it obtains
  the (nonexistant) temporary filename via /proc/PID/exe
  thus failing to identify the running process.

Note that "long" filenames (> DNAiME_INLINE_LEN) are still
exchanged without RENAME_EXCHANGE and this behaviour exists
long enough (should be fixed too apparently).
So this patch is just an interim workaround that restores
behavior for "short" names as it was before changes
introduced by commit da1ce0670c14 ("vfs: add cross-rename").

See https://lkml.org/lkml/2014/9/7/6 for details.

AV: the comments about being more careful with ->d_name.hash
than with ->d_name.name are from back in 2.3.40s; they
became obsolete by 2.3.60s, when we started to unhash the
target instead of swapping hash chain positions followed
by d_delete() as we used to do when dcache was first
introduced.

Acked-by: Miklos Szeredi <mszeredi@suse.cz>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: linux-fsdevel@vger.kernel.org
Cc: stable@vger.kernel.org
Fixes: da1ce0670c14 "vfs: add cross-rename"
Signed-off-by: Mikhail Efremov <sem@altlinux.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
9 years agofold swapping ->d_name.hash into switch_names()
Linus Torvalds [Wed, 24 Sep 2014 19:27:39 +0000 (12:27 -0700)] 
fold swapping ->d_name.hash into switch_names()

and do it along with ->d_name.len there

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
9 years agoregmap: fix NULL pointer dereference in _regmap_write/read
Pankaj Dubey [Sat, 27 Sep 2014 04:17:55 +0000 (09:47 +0530)] 
regmap: fix NULL pointer dereference in _regmap_write/read

If LOG_DEVICE is defined and map->dev is NULL it will lead to NULL
pointer dereference. This patch fixes this issue by adding check for
dev->NULL in all such places in regmap.c

Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
9 years agofold unlocking the children into dentry_unlock_parents_for_move()
Al Viro [Sat, 27 Sep 2014 03:11:15 +0000 (23:11 -0400)] 
fold unlocking the children into dentry_unlock_parents_for_move()

... renaming it into dentry_unlock_for_move() and making it more
symmetric with dentry_lock_for_move().

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
9 years agokill __d_materialise_dentry()
Al Viro [Sat, 27 Sep 2014 03:06:14 +0000 (23:06 -0400)] 
kill __d_materialise_dentry()

it folds into __d_move() now

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
9 years ago__d_materialise_dentry(): flip the order of arguments
Al Viro [Sat, 27 Sep 2014 02:54:02 +0000 (22:54 -0400)] 
__d_materialise_dentry(): flip the order of arguments

... thus making it much closer to (now unreachable, BTW) IS_ROOT(dentry)
case in __d_move().  A bit more and it'll fold in.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
9 years ago__d_move(): fold manipulations with ->d_child/->d_subdirs
Al Viro [Sat, 27 Sep 2014 01:34:01 +0000 (21:34 -0400)] 
__d_move(): fold manipulations with ->d_child/->d_subdirs

list_del() + list_add() is a slightly pessimised list_move()
list_del() + INIT_LIST_HEAD() is a slightly pessimised list_del_init()

Interleaving those makes the resulting code even worse.  And harder to follow...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
9 years agodon't open-code d_rehash() in d_materialise_unique()
Al Viro [Sat, 27 Sep 2014 01:26:50 +0000 (21:26 -0400)] 
don't open-code d_rehash() in d_materialise_unique()

... and get rid of duplicate BUG_ON() there

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
9 years agopull rehashing and unlocking the target dentry into __d_materialise_dentry()
Al Viro [Sat, 27 Sep 2014 01:20:39 +0000 (21:20 -0400)] 
pull rehashing and unlocking the target dentry into __d_materialise_dentry()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
9 years agoufs: deal with nfsd/iget races
Al Viro [Sat, 27 Sep 2014 01:17:52 +0000 (21:17 -0400)] 
ufs: deal with nfsd/iget races

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
9 years agofuse: honour max_read and max_write in direct_io mode
Miklos Szeredi [Wed, 24 Sep 2014 15:09:11 +0000 (17:09 +0200)] 
fuse: honour max_read and max_write in direct_io mode

The third argument of fuse_get_user_pages() "nbytesp" refers to the number of
bytes a caller asked to pack into fuse request. This value may be lesser
than capacity of fuse request or iov_iter.  So fuse_get_user_pages() must
ensure that *nbytesp won't grow.

Now, when helper iov_iter_get_pages() performs all hard work of extracting
pages from iov_iter, it can be done by passing properly calculated
"maxsize" to the helper.

The other caller of iov_iter_get_pages() (dio_refill_pages()) doesn't need
this capability, so pass LONG_MAX as the maxsize argument here.

Fixes: c9c37e2e6378 ("fuse: switch to iov_iter_get_pages()")
Reported-by: Werner Baumann <werner.baumann@onlinehome.de>
Tested-by: Maxim Patlasov <mpatlasov@parallels.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
9 years agoshmem: fix nlink for rename overwrite directory
Miklos Szeredi [Wed, 24 Sep 2014 15:56:17 +0000 (17:56 +0200)] 
shmem: fix nlink for rename overwrite directory

If overwriting an empty directory with rename, then need to drop the extra
nlink.

Test prog:

#include <stdio.h>
#include <fcntl.h>
#include <err.h>
#include <sys/stat.h>

int main(void)
{
const char *test_dir1 = "test-dir1";
const char *test_dir2 = "test-dir2";
int res;
int fd;
struct stat statbuf;

res = mkdir(test_dir1, 0777);
if (res == -1)
err(1, "mkdir(\"%s\")", test_dir1);

res = mkdir(test_dir2, 0777);
if (res == -1)
err(1, "mkdir(\"%s\")", test_dir2);

fd = open(test_dir2, O_RDONLY);
if (fd == -1)
err(1, "open(\"%s\")", test_dir2);

res = rename(test_dir1, test_dir2);
if (res == -1)
err(1, "rename(\"%s\", \"%s\")", test_dir1, test_dir2);

res = fstat(fd, &statbuf);
if (res == -1)
err(1, "fstat(%i)", fd);

if (statbuf.st_nlink != 0) {
fprintf(stderr, "nlink is %lu, should be 0\n", statbuf.st_nlink);
return 1;
}

return 0;
}

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Cc: stable@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
9 years agoip6gre: add a rtnl link alias for ip6gretap
Nicolas Dichtel [Wed, 24 Sep 2014 09:03:00 +0000 (11:03 +0200)] 
ip6gre: add a rtnl link alias for ip6gretap

With this alias, we don't need to load manually the module before adding an
ip6gretap interface with iproute2.

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agonet/mlx4_core: Allow not to specify probe_vf in SRIOV IB mode
Matan Barak [Tue, 23 Sep 2014 13:05:59 +0000 (16:05 +0300)] 
net/mlx4_core: Allow not to specify probe_vf in SRIOV IB mode

When the HCA is configured in SRIOV IB mode (that is, at least one of
the ports is IB) and the probe_vf module param isn't specified,
mlx4_init_one() failed because of the following condition:

if (ib_ports && (num_vfs_argc > 1 || probe_vfs_argc > 1)) {
 .....
}

The root cause for that is a mistake in the initialization of num_vfs_argc
and probe_vfs_argc. When num_vfs / probe_vf aren't given, their argument
count counterpart should be 0, fix that.

Fixes: dd41cc3bb90e ('net/mlx4: Adapt num_vfs/probed_vf params for single port VF')
Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf
David S. Miller [Fri, 26 Sep 2014 20:21:29 +0000 (16:21 -0400)] 
Merge git://git./pub/scm/linux/kernel/git/pablo/nf

Pablo Neira Ayuso says:

====================
nf pull request for net

This series contains netfilter fixes for net, they are:

1) Fix lockdep splat in nft_hash when releasing sets from the
   rcu_callback context. We don't the mutex there anymore.

2) Remove unnecessary spinlock_bh in the destroy path of the nf_tables
   rbtree set type from rcu_callback context.

3) Fix another lockdep splat in rhashtable. None of the callers hold
   a mutex when calling rhashtable_destroy.

4) Fix duplicated error reporting from nfnetlink when aborting and
   replaying a batch.

5) Fix a Kconfig issue reported by kbuild robot.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agor8152: fix the carrier off when autoresuming
hayeswang [Tue, 23 Sep 2014 08:31:47 +0000 (16:31 +0800)] 
r8152: fix the carrier off when autoresuming

netif_carrier_off would be called when autoresuming, even though
the cable is plugged. This causes some applications do relative
actions when detecting the carrier off. Keep the status of the
carrier, and let it be modified when the linking change occurs.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agoRevert "net/macb: add pinctrl consumer support"
Soren Brinkmann [Mon, 22 Sep 2014 23:49:08 +0000 (16:49 -0700)] 
Revert "net/macb: add pinctrl consumer support"

This reverts commit 8ef29f8aae524bd51298fb10ac6a5ce6c4c5a3d8.
The driver core already calls pinctrl_get() and claims the default
state. There is no need to replicate this in the driver.
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agomacvtap: Fix race between device delete and open.
Vlad Yasevich [Mon, 22 Sep 2014 20:34:17 +0000 (16:34 -0400)] 
macvtap: Fix race between device delete and open.

In macvtap device delete and open calls can race and
this causes a list curruption of the vlan queue_list.

The race intself is triggered by the idr accessors
that located the vlan device.  The device is stored
into and removed from the idr under both an rtnl and
a mutex.  However, when attempting to locate the device
in idr, only a mutex is taken.  As a result, once cpu
perfoming a delete may take an rtnl and wait for the mutex,
while another cput doing an open() will take the idr
mutex first to fetch the device pointer and later take
an rtnl to add a queue for the device which may have
just gotten deleted.

With this patch, we now hold the rtnl for the duration
of the macvtap_open() call thus making sure that
open will not race with delete.

CC: Michael S. Tsirkin <mst@redhat.com>
CC: Jason Wang <jasowang@redhat.com>
Signed-off-by: Vladislav Yasevich <vyasevic@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agoMerge branch 'qlcnic'
David S. Miller [Fri, 26 Sep 2014 19:11:37 +0000 (15:11 -0400)] 
Merge branch 'qlcnic'

Manish Chopra says:

====================
qlcnic: Bug fixes.

This patch series contains following bug fixes:

* Fixes related to ethtool statistics.
* Fix for flash read related API.

Please apply this series to 'net'.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agoqlcnic: Fix ordering of stats in stats buffer.
Manish Chopra [Mon, 22 Sep 2014 09:51:53 +0000 (05:51 -0400)] 
qlcnic: Fix ordering of stats in stats buffer.

o When TX queues are not allocated, driver does not fill TX queues stats in the buffer.
  However, it is also not advancing data pointer by TX queue stats length, which would
  misplace all successive stats data in the buffer and will result in mismatch between
  stats strings and it's values.

o Fix this by advancing data pointer by TX queue stats length when
  queues are not allocated.

Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agoqlcnic: Remove __QLCNIC_DEV_UP bit check to read TX queues statistics.
Manish Chopra [Mon, 22 Sep 2014 09:51:52 +0000 (05:51 -0400)] 
qlcnic: Remove __QLCNIC_DEV_UP bit check to read TX queues statistics.

o TX queues stats must be read when queues are allocated regardless
  of interface is up or not.

Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agoqlcnic: Fix memory corruption while reading stats using ethtool.
Manish Chopra [Mon, 22 Sep 2014 09:51:51 +0000 (05:51 -0400)] 
qlcnic: Fix memory corruption while reading stats using ethtool.

o  Driver is doing memset with zero for total number of stats bytes when
   it has already filled some data in the stats buffer, which can overwrite
   memory area beyond the length of stats buffer.

o  Fix this by initializing stats buffer with zero before filling any data in it.

Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agoqlcnic: Use qlcnic_83xx_flash_read32() API instead of lockless version of the API.
Sony Chacko [Mon, 22 Sep 2014 09:51:50 +0000 (05:51 -0400)] 
qlcnic: Use qlcnic_83xx_flash_read32() API instead of lockless version of the API.

In qlcnic_83xx_setup_idc_parameters() routine use qlcnic_83xx_flash_read32() API
which takes flash lock internally instead of the lockless version
qlcnic_83xx_lockless_flash_read32().

Signed-off-by: Sony Chacko <sony.chacko@qlogic.com>
Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Linus Torvalds [Fri, 26 Sep 2014 18:04:31 +0000 (11:04 -0700)] 
Merge branch 'for-linus' of git://git./linux/kernel/git/dtor/input

Pull input fix from Dmitry Torokhov:
 "A small fixup to i8042 adding Asus X450LCP to the nomux list"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: i8042 - fix Asus X450LCP touchpad detection

9 years agoMerge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 26 Sep 2014 15:38:09 +0000 (08:38 -0700)] 
Merge branch 'sched-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull scheduler fixes from Ingo Molnar:
 "A CONFIG_STACK_GROWSUP=y fix, and a hotplug llc CPU mask fix"

* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched: Fix unreleased llc_shared_mask bit during CPU hotplug
  sched: Fix end_of_stack() and location of stack canary for architectures using CONFIG_STACK_GROWSUP

9 years agoMerge branch 'akpm' (fixes from Andrew Morton)
Linus Torvalds [Fri, 26 Sep 2014 15:11:43 +0000 (08:11 -0700)] 
Merge branch 'akpm' (fixes from Andrew Morton)

Merge fixes from Andrew Morton:
 "9 fixes"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
  mm: softdirty: keep bit when zapping file pte
  fs/cachefiles: add missing \n to kerror conversions
  genalloc: fix device node resource counter
  drivers/rtc/rtc-efi.c: add missing module alias
  mm, slab: initialize object alignment on cache creation
  mm: softdirty: addresses before VMAs in PTE holes aren't softdirty
  ocfs2/dlm: do not get resource spinlock if lockres is new
  nilfs2: fix data loss with mmap()
  ocfs2: free vol_label in ocfs2_delete_osb()

9 years agomm: softdirty: keep bit when zapping file pte
Peter Feiner [Thu, 25 Sep 2014 23:05:29 +0000 (16:05 -0700)] 
mm: softdirty: keep bit when zapping file pte

This fixes the same bug as b43790eedd31 ("mm: softdirty: don't forget to
save file map softdiry bit on unmap") and 9aed8614af5a ("mm/memory.c:
don't forget to set softdirty on file mapped fault") where the return
value of pte_*mksoft_dirty was being ignored.

To be sure that no other pte/pmd "mk" function return values were being
ignored, I annotated the functions in arch/x86/include/asm/pgtable.h
with __must_check and rebuilt.

The userspace effect of this bug is that the softdirty mark might be
lost if a file mapped pte get zapped.

Signed-off-by: Peter Feiner <pfeiner@google.com>
Acked-by: Cyrill Gorcunov <gorcunov@openvz.org>
Cc: Pavel Emelyanov <xemul@parallels.com>
Cc: Jamie Liu <jamieliu@google.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: <stable@vger.kernel.org> [3.12+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
9 years agofs/cachefiles: add missing \n to kerror conversions
Fabian Frederick [Thu, 25 Sep 2014 23:05:27 +0000 (16:05 -0700)] 
fs/cachefiles: add missing \n to kerror conversions

Commit 0227d6abb378 ("fs/cachefiles: replace kerror by pr_err") didn't
include newline featuring in original kerror definition

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Reported-by: David Howells <dhowells@redhat.com>
Acked-by: David Howells <dhowells@redhat.com>
Cc: <stable@vger.kernel.org> [3.16.x]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
9 years agogenalloc: fix device node resource counter
Vladimir Zapolskiy [Thu, 25 Sep 2014 23:05:25 +0000 (16:05 -0700)] 
genalloc: fix device node resource counter

Decrement the np_pool device_node refcount, which was incremented on
the preceding of_parse_phandle() call.

Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Olof Johansson <olof@lixom.net>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
9 years agodrivers/rtc/rtc-efi.c: add missing module alias
Pali Rohár [Thu, 25 Sep 2014 23:05:22 +0000 (16:05 -0700)] 
drivers/rtc/rtc-efi.c: add missing module alias

Without proper alias kernel module is not loaded for rtc-efi driver.

Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Cc: dann frazier <dannf@dannf.org>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
9 years agomm, slab: initialize object alignment on cache creation
David Rientjes [Thu, 25 Sep 2014 23:05:20 +0000 (16:05 -0700)] 
mm, slab: initialize object alignment on cache creation

Since commit 4590685546a3 ("mm/sl[aou]b: Common alignment code"), the
"ralign" automatic variable in __kmem_cache_create() may be used as
uninitialized.

The proper alignment defaults to BYTES_PER_WORD and can be overridden by
SLAB_RED_ZONE or the alignment specified by the caller.

This fixes https://bugzilla.kernel.org/show_bug.cgi?id=85031

Signed-off-by: David Rientjes <rientjes@google.com>
Reported-by: Andrei Elovikov <a.elovikov@gmail.com>
Acked-by: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
9 years agomm: softdirty: addresses before VMAs in PTE holes aren't softdirty
Peter Feiner [Thu, 25 Sep 2014 23:05:18 +0000 (16:05 -0700)] 
mm: softdirty: addresses before VMAs in PTE holes aren't softdirty

In PTE holes that contain VM_SOFTDIRTY VMAs, unmapped addresses before
VM_SOFTDIRTY VMAs are reported as softdirty by /proc/pid/pagemap.  This
bug was introduced in commit 68b5a6524856 ("mm: softdirty: respect
VM_SOFTDIRTY in PTE holes").  That commit made /proc/pid/pagemap look at
VM_SOFTDIRTY in PTE holes but neglected to observe the start of VMAs
returned by find_vma.

Tested:
  Wrote a selftest that creates a PMD-sized VMA then unmaps the first
  page and asserts that the page is not softdirty. I'm going to send the
  pagemap selftest in a later commit.

Signed-off-by: Peter Feiner <pfeiner@google.com>
Cc: Cyrill Gorcunov <gorcunov@openvz.org>
Cc: Pavel Emelyanov <xemul@parallels.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: "Kirill A. Shutemov" <kirill@shutemov.name>
Cc: Jamie Liu <jamieliu@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
9 years agoocfs2/dlm: do not get resource spinlock if lockres is new
Joseph Qi [Thu, 25 Sep 2014 23:05:16 +0000 (16:05 -0700)] 
ocfs2/dlm: do not get resource spinlock if lockres is new

There is a deadlock case which reported by Guozhonghua:
  https://oss.oracle.com/pipermail/ocfs2-devel/2014-September/010079.html

This case is caused by &res->spinlock and &dlm->master_lock
misordering in different threads.

It was introduced by commit 8d400b81cc83 ("ocfs2/dlm: Clean up refmap
helpers").  Since lockres is new, it doesn't not require the
&res->spinlock.  So remove it.

Fixes: 8d400b81cc83 ("ocfs2/dlm: Clean up refmap helpers")
Signed-off-by: Joseph Qi <joseph.qi@huawei.com>
Reviewed-by: joyce.xue <xuejiufei@huawei.com>
Reported-by: Guozhonghua <guozhonghua@h3c.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
9 years agonilfs2: fix data loss with mmap()
Andreas Rohner [Thu, 25 Sep 2014 23:05:14 +0000 (16:05 -0700)] 
nilfs2: fix data loss with mmap()

This bug leads to reproducible silent data loss, despite the use of
msync(), sync() and a clean unmount of the file system.  It is easily
reproducible with the following script:

  ----------------[BEGIN SCRIPT]--------------------
  mkfs.nilfs2 -f /dev/sdb
  mount /dev/sdb /mnt

  dd if=/dev/zero bs=1M count=30 of=/mnt/testfile

  umount /mnt
  mount /dev/sdb /mnt
  CHECKSUM_BEFORE="$(md5sum /mnt/testfile)"

  /root/mmaptest/mmaptest /mnt/testfile 30 10 5

  sync
  CHECKSUM_AFTER="$(md5sum /mnt/testfile)"
  umount /mnt
  mount /dev/sdb /mnt
  CHECKSUM_AFTER_REMOUNT="$(md5sum /mnt/testfile)"
  umount /mnt

  echo "BEFORE MMAP:\t$CHECKSUM_BEFORE"
  echo "AFTER MMAP:\t$CHECKSUM_AFTER"
  echo "AFTER REMOUNT:\t$CHECKSUM_AFTER_REMOUNT"
  ----------------[END SCRIPT]--------------------

The mmaptest tool looks something like this (very simplified, with
error checking removed):

  ----------------[BEGIN mmaptest]--------------------
  data = mmap(NULL, file_size - file_offset, PROT_READ | PROT_WRITE,
              MAP_SHARED, fd, file_offset);

  for (i = 0; i < write_count; ++i) {
        memcpy(data + i * 4096, buf, sizeof(buf));
        msync(data, file_size - file_offset, MS_SYNC))
  }
  ----------------[END mmaptest]--------------------

The output of the script looks something like this:

  BEFORE MMAP:    281ed1d5ae50e8419f9b978aab16de83  /mnt/testfile
  AFTER MMAP:     6604a1c31f10780331a6850371b3a313  /mnt/testfile
  AFTER REMOUNT:  281ed1d5ae50e8419f9b978aab16de83  /mnt/testfile

So it is clear, that the changes done using mmap() do not survive a
remount.  This can be reproduced a 100% of the time.  The problem was
introduced in commit 136e8770cd5d ("nilfs2: fix issue of
nilfs_set_page_dirty() for page at EOF boundary").

If the page was read with mpage_readpage() or mpage_readpages() for
example, then it has no buffers attached to it.  In that case
page_has_buffers(page) in nilfs_set_page_dirty() will be false.
Therefore nilfs_set_file_dirty() is never called and the pages are never
collected and never written to disk.

This patch fixes the problem by also calling nilfs_set_file_dirty() if the
page has no buffers attached to it.

[akpm@linux-foundation.org: s/PAGE_SHIFT/PAGE_CACHE_SHIFT/]
Signed-off-by: Andreas Rohner <andreas.rohner@gmx.net>
Tested-by: Andreas Rohner <andreas.rohner@gmx.net>
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
9 years agoocfs2: free vol_label in ocfs2_delete_osb()
Joseph Qi [Thu, 25 Sep 2014 23:05:11 +0000 (16:05 -0700)] 
ocfs2: free vol_label in ocfs2_delete_osb()

osb->vol_label is malloced in ocfs2_initialize_super but not freed if
error occurs or during umount, thus causing a memory leak.

Signed-off-by: Joseph Qi <joseph.qi@huawei.com>
Reviewed-by: joyce.xue <xuejiufei@huawei.com>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <jlbec@evilplan.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
9 years agoMIPS: mcount: Adjust stack pointer for static trace in MIPS32
Markos Chandras [Tue, 16 Sep 2014 14:55:12 +0000 (15:55 +0100)] 
MIPS: mcount: Adjust stack pointer for static trace in MIPS32

Every mcount() call in the MIPS 32-bit kernel is done as follows:

[...]
move at, ra
jal _mcount
addiu sp, sp, -8
[...]

but upon returning from the mcount() function, the stack pointer
is not adjusted properly. This is explained in details in 58b69401c797
(MIPS: Function tracer: Fix broken function tracing).

Commit ad8c396936e3 ("MIPS: Unbreak function tracer for 64-bit kernel.)
fixed the stack manipulation for 64-bit but it didn't fix it completely
for MIPS32.

Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: <stable@vger.kernel.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/7792/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
9 years agoMIPS: Fix MFC1 & MFHC1 emulation for 64-bit MIPS systems
Paul Burton [Wed, 24 Sep 2014 09:45:37 +0000 (10:45 +0100)] 
MIPS: Fix MFC1 & MFHC1 emulation for 64-bit MIPS systems

Commit bbd426f542cb "MIPS: Simplify FP context access" modified the
SIFROMREG & SIFROMHREG macros such that they return unsigned rather
than signed 32b integers. I had believed that to be fine, but
inadvertently missed the MFC1 & MFHC1 cases which write to a struct
pt_regs regs element. On MIPS32 this is fine, but on 64 bit those
saved regs' fields are 64 bit wide. Using unsigned values caused the
32 bit value from the FP register to be zero rather than sign extended
as the architecture specifies, causing incorrect emulation of the
MFC1 & MFHc1 instructions. Fix by reintroducing the casts to signed
integers, and therefore the sign extension.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: stable@vger.kernel.org # v3.15+
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/7848/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
9 years agoDocumentation: correct parameter error for dma_mapping_error
Liu Hua [Thu, 18 Sep 2014 04:15:28 +0000 (12:15 +0800)] 
Documentation: correct parameter error for dma_mapping_error

dma_mapping_error takes two parameters, but some of examples
in Documentation/DMA-API-HOWTO.txt just takes one. So correct
it.

Signed-off-by: Liu Hua <sdu.liu@huawei.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
9 years agoRemove MN10300_PROC_MN2WS0038
Richard Weinberger [Fri, 26 Sep 2014 09:15:18 +0000 (11:15 +0200)] 
Remove MN10300_PROC_MN2WS0038

The symbol is an orphan, get rid of it.

Signed-off-by: Richard Weinberger <richard@nod.at>
Acked-by: David Howells <dhowells@redhat.com>
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
9 years agomei: fix comments
Geert Uytterhoeven [Tue, 16 Sep 2014 20:00:47 +0000 (22:00 +0200)] 
mei: fix comments

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: "Winkler, Tomas" <tomas.winkler@intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
9 years agotreewide: Fix typos in Kconfig
Masanari Iida [Thu, 18 Sep 2014 03:09:42 +0000 (12:09 +0900)] 
treewide: Fix typos in Kconfig

This patch fix spelling typos found in Kconfig.

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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