cascardo/linux.git
12 years agoMerge branch 'imx/imx6q' into next/soc
Arnd Bergmann [Wed, 2 Nov 2011 01:46:55 +0000 (02:46 +0100)]
Merge branch 'imx/imx6q' into next/soc

Conflicts:
Documentation/devicetree/bindings/arm/fsl.txt
arch/arm/Kconfig
arch/arm/Kconfig.debug
arch/arm/plat-mxc/include/mach/common.h

12 years agoMerge branch 'picoxcell/soc' into next/soc
Arnd Bergmann [Wed, 2 Nov 2011 01:46:17 +0000 (02:46 +0100)]
Merge branch 'picoxcell/soc' into next/soc

12 years agoMerge branch 'highbank/soc' into next/soc
Arnd Bergmann [Wed, 2 Nov 2011 01:46:10 +0000 (02:46 +0100)]
Merge branch 'highbank/soc' into next/soc

Conflicts:
arch/arm/mach-mxs/include/mach/gpio.h
arch/arm/mach-omap2/board-generic.c
arch/arm/plat-mxc/include/mach/gpio.h

12 years agoMerge branch 'imx/devel' into next/dt
Arnd Bergmann [Tue, 1 Nov 2011 16:12:22 +0000 (17:12 +0100)]
Merge branch 'imx/devel' into next/dt

The board changes in the imx/devel branch conflict with other changes in
the device imx/dt branch.

Conflicts:
arch/arm/mach-mx5/board-mx53_loco.c
arch/arm/mach-mx5/board-mx53_smd.c
arch/arm/plat-mxc/include/mach/common.h
arch/arm/plat-mxc/include/mach/memory.h

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
12 years agoARM: gic: use module.h instead of export.h
Arnd Bergmann [Mon, 31 Oct 2011 23:28:37 +0000 (00:28 +0100)]
ARM: gic: use module.h instead of export.h

The module.h cleanup series is not merged at this point, so use the
older header file for now, to make it build either way.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
12 years agoMAINTAINERS: add ARM/FREESCALE IMX6 entry
Shawn Guo [Fri, 7 Oct 2011 14:24:18 +0000 (22:24 +0800)]
MAINTAINERS: add ARM/FREESCALE IMX6 entry

It adds maintainer for ARM/FREESCALE IMX6.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
12 years agoarm/imx: merge i.MX3 and i.MX6
Sascha Hauer [Tue, 27 Sep 2011 05:48:02 +0000 (13:48 +0800)]
arm/imx: merge i.MX3 and i.MX6

The patch merges the build of imx3 and imx6.  The Kconfig symbol
ARCH_IMX_V6_V7 is introduced to replace ARCH_MX3 and ARCH_MX6.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
12 years agoarm/imx6q: add suspend/resume support
Shawn Guo [Tue, 6 Sep 2011 07:08:40 +0000 (15:08 +0800)]
arm/imx6q: add suspend/resume support

It adds suspend/resume support for imx6q.

Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
12 years agoarm/imx6q: add device tree machine support
Shawn Guo [Tue, 6 Sep 2011 07:05:25 +0000 (15:05 +0800)]
arm/imx6q: add device tree machine support

It adds generic device tree based machine support for imx6q.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
12 years agoarm/imx6q: add smp and cpu hotplug support
Shawn Guo [Tue, 6 Sep 2011 06:59:40 +0000 (14:59 +0800)]
arm/imx6q: add smp and cpu hotplug support

It adds smp and cpu hotplug support for imx6q.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
12 years agoarm/imx6q: add core drivers clock, gpc, mmdc and src
Shawn Guo [Tue, 6 Sep 2011 06:39:44 +0000 (14:39 +0800)]
arm/imx6q: add core drivers clock, gpc, mmdc and src

It adds a number of core drivers support for imx6q, including clock,
General Power Controller (gpc), Multi Mode DDR Controller(mmdc) and
System Reset Controller (src).

Signed-off-by: Ranjani Vaidyanathan <ra5478@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
12 years agoarm/imx: add gic_handle_irq function
Shawn Guo [Fri, 23 Sep 2011 16:43:06 +0000 (00:43 +0800)]
arm/imx: add gic_handle_irq function

This is a plain translation of assembly gic irq handler to C function
for CONFIG_MULTI_IRQ_HANDLER support on imx family.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
12 years agoarm/imx6q: add core definitions and low-level debug uart
Shawn Guo [Sun, 2 Oct 2011 07:09:11 +0000 (15:09 +0800)]
arm/imx6q: add core definitions and low-level debug uart

It adds the core definitions and low-level debug uart support
for imx6q.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
12 years agoarm/imx6q: add device tree source
Shawn Guo [Tue, 6 Sep 2011 05:53:26 +0000 (13:53 +0800)]
arm/imx6q: add device tree source

It adds device tree source and documentation for imx6q platform.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
12 years agoMerge branch 'cross-platform/debug_ll' into imx/imx6q
Arnd Bergmann [Mon, 31 Oct 2011 13:24:41 +0000 (14:24 +0100)]
Merge branch 'cross-platform/debug_ll' into imx/imx6q

Conflicts:
arch/arm/Kconfig.debug

12 years agoMerge branch 'imx/devel' into imx/imx6q
Arnd Bergmann [Mon, 31 Oct 2011 13:24:28 +0000 (14:24 +0100)]
Merge branch 'imx/devel' into imx/imx6q

Conflicts:
arch/arm/plat-mxc/include/mach/memory.h

12 years agoMerge branch 'dt/gic' into imx/imx6q
Arnd Bergmann [Mon, 31 Oct 2011 13:23:44 +0000 (14:23 +0100)]
Merge branch 'dt/gic' into imx/imx6q

12 years agoMerge branch 'depends/rmk/devel-stable' into imx/imx6q
Arnd Bergmann [Mon, 31 Oct 2011 13:23:28 +0000 (14:23 +0100)]
Merge branch 'depends/rmk/devel-stable' into imx/imx6q

12 years agoARM: highbank: add suspend support
Rob Herring [Sun, 15 May 2011 17:44:17 +0000 (12:44 -0500)]
ARM: highbank: add suspend support

Add the platform suspend ops for highbank.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Reviewed-by: Jamie Iles <jamie@jamieiles.com>
Reviewed-by: Shawn Guo <shawn.guo@linaro.org>
12 years agoARM: highbank: Add cpu hotplug support
Martin Bogomolni [Mon, 13 Jun 2011 21:50:33 +0000 (16:50 -0500)]
ARM: highbank: Add cpu hotplug support

This adds cpu hotplug for highbank. On highbank, a core is always reset and
boots up the same path as a cold boot.

Signed-off-by: Martin Bogomolni <martin@calxeda.com>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Reviewed-by: Jamie Iles <jamie@jamieiles.com>
Reviewed-by: Shawn Guo <shawn.guo@linaro.org>
12 years agoARM: highbank: add SMP support
Rob Herring [Wed, 18 May 2011 02:02:49 +0000 (21:02 -0500)]
ARM: highbank: add SMP support

This enables SMP support on highbank processor.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Reviewed-by: Jamie Iles <jamie@jamieiles.com>
Reviewed-by: Shawn Guo <shawn.guo@linaro.org>
12 years agoMAINTAINERS: add Calxeda Highbank ARM platform
Rob Herring [Wed, 22 Jun 2011 16:28:53 +0000 (11:28 -0500)]
MAINTAINERS: add Calxeda Highbank ARM platform

Adding maintainer for arch/arm/mach-highbank/

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Reviewed-by: Jamie Iles <jamie@jamieiles.com>
Reviewed-by: Shawn Guo <shawn.guo@linaro.org>
12 years agoARM: add Highbank core platform support
Rob Herring [Tue, 7 Jun 2011 15:02:55 +0000 (10:02 -0500)]
ARM: add Highbank core platform support

This adds basic support for the Calxeda Highbank platform.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Reviewed-by: Jamie Iles <jamie@jamieiles.com>
Reviewed-by: Shawn Guo <shawn.guo@linaro.org>
12 years agoARM: highbank: add devicetree source
Rob Herring [Wed, 10 Aug 2011 20:22:11 +0000 (15:22 -0500)]
ARM: highbank: add devicetree source

This adds the devicetree source and documentation for the Calxeda highbank
platform.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Reviewed-by: Jamie Iles <jamie@jamieiles.com>
Reviewed-by: Shawn Guo <shawn.guo@linaro.org>
12 years agoARM: l2x0: add empty l2x0_of_init
Rob Herring [Thu, 25 Aug 2011 13:14:52 +0000 (08:14 -0500)]
ARM: l2x0: add empty l2x0_of_init

Add empty version of l2x0_of_init for when CONFIG_CACHE_L2X0 is not selected.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Barry Song <21cnbao@gmail.com>
Reviewed-by: Shawn Guo <shawn.guo@linaro.org>
12 years agoMerge branch 'dt/gic' into highbank/soc
Arnd Bergmann [Mon, 31 Oct 2011 13:11:34 +0000 (14:11 +0100)]
Merge branch 'dt/gic' into highbank/soc

Conflicts:
arch/arm/Kconfig

12 years agoMerge branch 'depends/rmk/debug' into highbank/soc
Arnd Bergmann [Mon, 31 Oct 2011 13:10:44 +0000 (14:10 +0100)]
Merge branch 'depends/rmk/debug' into highbank/soc

12 years agoMerge branch 'dt/gic' into next/dt
Arnd Bergmann [Mon, 31 Oct 2011 13:08:10 +0000 (14:08 +0100)]
Merge branch 'dt/gic' into next/dt

Conflicts:
arch/arm/include/asm/localtimer.h
arch/arm/mach-msm/board-msm8x60.c
arch/arm/mach-omap2/board-generic.c

12 years agoMerge branch 'omap/dt' into next/dt
Arnd Bergmann [Mon, 31 Oct 2011 13:07:51 +0000 (14:07 +0100)]
Merge branch 'omap/dt' into next/dt

12 years agoARM: gic: fix irq_alloc_descs handling for sparse irq
Rob Herring [Fri, 21 Oct 2011 22:14:27 +0000 (17:14 -0500)]
ARM: gic: fix irq_alloc_descs handling for sparse irq

Commit "ARM: gic: add irq_domain support" (b49b6ff) breaks SPARSE_IRQ
on platforms with GIC. When SPARSE_IRQ is enabled, all NR_IRQS or
mach_desc->nr_irqs will be allocated by arch_probe_nr_irqs(). This caused
irq_alloc_descs to allocate irq_descs after the pre-allocated space.

Make irq_alloc_descs search for an exact irq range and assume it has
been pre-allocated on failure. For DT probing dynamic allocation is used.
DT enabled platforms should set their nr_irqs to NR_IRQ_LEGACY and have all
irq_chips allocate their irq_descs with irq_alloc_descs if SPARSE_IRQ is
enabled.

gic_init irq_start param is changed to be signed with negative meaning do
dynamic Linux irq assigment.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
12 years agoARM: gic: add OF based initialization
Rob Herring [Thu, 29 Sep 2011 02:27:52 +0000 (21:27 -0500)]
ARM: gic: add OF based initialization

This adds ARM gic interrupt controller initialization using device tree
data.

The initialization function is intended to be called by of_irq_init
function like this:

const static struct of_device_id irq_match[] = {
{ .compatible = "arm,cortex-a9-gic", .data = gic_of_init, },
{}
};

static void __init init_irqs(void)
{
of_irq_init(irq_match);
}

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Reviewed-by: Jamie Iles <jamie@jamieiles.com>
Tested-by: Thomas Abraham <thomas.abraham@linaro.org>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
12 years agoARM: gic: add irq_domain support
Rob Herring [Thu, 29 Sep 2011 02:25:31 +0000 (21:25 -0500)]
ARM: gic: add irq_domain support

Convert the gic interrupt controller to use irq domains in preparation
for device-tree binding and MULTI_IRQ. This allows for translation between
GIC interrupt IDs and Linux irq numbers.

The meaning of irq_offset has changed. It now is just the number of skipped
GIC interrupt IDs for the controller. It will be 16 for primary GIC and 32
for secondary GICs.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Reviewed-by: Jamie Iles <jamie@jamieiles.com>
Tested-by: Thomas Abraham <thomas.abraham@linaro.org>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
12 years agoirq: support domains with non-zero hwirq base
Rob Herring [Fri, 30 Sep 2011 15:48:38 +0000 (10:48 -0500)]
irq: support domains with non-zero hwirq base

Interrupt controllers can have non-zero starting value for h/w irq numbers.
Adding support in irq_domain allows the domain hwirq numbering to match
the interrupt controllers' numbering.

As this makes looping over irqs for a domain more complicated, add loop
iterators to iterate over all hwirqs and irqs for a domain.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Reviewed-by: Jamie Iles <jamie@jamieiles.com>
Tested-by: Thomas Abraham <thomas.abraham@linaro.org>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
12 years agoof/irq: introduce of_irq_init
Rob Herring [Tue, 20 Sep 2011 20:13:50 +0000 (15:13 -0500)]
of/irq: introduce of_irq_init

of_irq_init will scan the devicetree for matching interrupt controller
nodes. Then it calls an initialization function for each found controller
in the proper order with parent nodes initialized before child nodes.

Based on initial pseudo code from Grant Likely.

Changes in v4:
- Drop unnecessary empty list check
- Be more verbose on errors
- Simplify "if (!desc) WARN_ON(1)" to "if (WARN_ON(!desc))"

Changes in v3:
- add missing kfree's found by Jamie
- Implement Grant's comments to simplify the init loop
- fix function comments

Changes in v2:
- Complete re-write of list searching code from Grant Likely

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Reviewed-by: Jamie Iles <jamie@jamieiles.com>
Tested-by: Thomas Abraham <thomas.abraham@linaro.org>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
12 years agoMerge branches 'depends/rmk/io', 'depends/rmk/l2x0' and 'depends/rmk/gpio' into highb...
Arnd Bergmann [Sun, 30 Oct 2011 22:26:28 +0000 (23:26 +0100)]
Merge branches 'depends/rmk/io', 'depends/rmk/l2x0' and 'depends/rmk/gpio' into highbank/soc

12 years agoMerge branches 'msm/dt', 'imx/dt' and 'at91/dt' into next/dt
Arnd Bergmann [Sun, 30 Oct 2011 21:09:09 +0000 (22:09 +0100)]
Merge branches 'msm/dt', 'imx/dt' and 'at91/dt' into next/dt

12 years agoARM: at91: add at91sam9g20 and Calao USB A9G20 DT support
Jean-Christophe PLAGNIOL-VILLARD [Fri, 14 Oct 2011 01:40:52 +0000 (09:40 +0800)]
ARM: at91: add at91sam9g20 and Calao USB A9G20 DT support

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Reviewed-by: Rob Herring <rob.herring@calxeda.com>
12 years agoARM: at91: dt: at91sam9g45 family and board device tree files
Nicolas Ferre [Mon, 10 Oct 2011 16:29:24 +0000 (18:29 +0200)]
ARM: at91: dt: at91sam9g45 family and board device tree files

Create a new device tree source file for Atmel at91sam9g45 SoC family.
The Evaluation Kit at91sam9m10g45ek includes it.
This first basic support will be populated as drivers and boards will be
converted to device tree.
Contains serial, dma and interrupt controllers.

The generic board file still takes advantage of platform data for early serial
init. As we need a storage media and the NAND flash driver is not converted to
DT yet, we keep old initialization for it.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Reviewed-by: Rob Herring <rob.herring@calxeda.com>
12 years agoMerge remote-tracking branch 'rmk/devel-stable' into HEAD
Rob Herring [Mon, 24 Oct 2011 19:02:37 +0000 (14:02 -0500)]
Merge remote-tracking branch 'rmk/devel-stable' into HEAD

12 years agoLinux 3.1 v3.1
Linus Torvalds [Mon, 24 Oct 2011 07:10:05 +0000 (09:10 +0200)]
Linux 3.1

12 years agoMerge git://git.infradead.org/iommu-2.6
Linus Torvalds [Mon, 24 Oct 2011 05:08:24 +0000 (07:08 +0200)]
Merge git://git.infradead.org/iommu-2.6

* git://git.infradead.org/iommu-2.6:
  intel-iommu: fix superpage support in pfn_to_dma_pte()
  intel-iommu: set iommu_superpage on VM domains to lowest common denominator
  intel-iommu: fix return value of iommu_unmap() API
  MAINTAINERS: Update VT-d entry for drivers/pci -> drivers/iommu move
  intel-iommu: Export a flag indicating that the IOMMU is used for iGFX.
  intel-iommu: Workaround IOTLB hang on Ironlake GPU
  intel-iommu: Fix AB-BA lockdep report

12 years agoMerge branch 'for-linus' of http://people.redhat.com/agk/git/linux-dm
Linus Torvalds [Mon, 24 Oct 2011 05:05:38 +0000 (07:05 +0200)]
Merge branch 'for-linus' of people.redhat.com/agk/git/linux-dm

* 'for-linus' of http://people.redhat.com/agk/git/linux-dm:
  dm kcopyd: fix job_pool leak

12 years agox86: Fix S4 regression
Takashi Iwai [Sun, 23 Oct 2011 21:19:12 +0000 (23:19 +0200)]
x86: Fix S4 regression

Commit 4b239f458 ("x86-64, mm: Put early page table high") causes a S4
regression since 2.6.39, namely the machine reboots occasionally at S4
resume.  It doesn't happen always, overall rate is about 1/20.  But,
like other bugs, once when this happens, it continues to happen.

This patch fixes the problem by essentially reverting the memory
assignment in the older way.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Cc: <stable@kernel.org>
Cc: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Yinghai Lu <yinghai.lu@oracle.com>
[ We'll hopefully find the real fix, but that's too late for 3.1 now ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agodm kcopyd: fix job_pool leak
Alasdair G Kergon [Sun, 23 Oct 2011 19:55:17 +0000 (20:55 +0100)]
dm kcopyd: fix job_pool leak

Fix memory leak introduced by commit a6e50b409d3f9e0833e69c3c9cca822e8fa4adbb
(dm snapshot: skip reading origin when overwriting complete chunk).

When allocating a set of jobs from kc->job_pool, job->master_job must be
set (to point to itself) so that the mempool item gets freed when the
master_job completes.

master_job was introduced by commit c6ea41fbbe08f270a8edef99dc369faf809d1bd6
(dm kcopyd: preallocate sub jobs to avoid deadlock)

Reported-by: Michael Leun <ml@newton.leun.net>
Cc: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
12 years agoMerge branch 'ppi-irq-core-for-rmk' of git://github.com/mzyngier/arm-platforms into...
Russell King [Sun, 23 Oct 2011 13:42:30 +0000 (14:42 +0100)]
Merge branch 'ppi-irq-core-for-rmk' of git://github.com/mzyngier/arm-platforms into devel-stable

12 years agoARM: gic, local timers: use the request_percpu_irq() interface
Marc Zyngier [Fri, 22 Jul 2011 11:52:37 +0000 (12:52 +0100)]
ARM: gic, local timers: use the request_percpu_irq() interface

This patch remove the hardcoded link between local timers and PPIs,
and convert the PPI users (TWD, MCT and MSM timers) to the new
*_percpu_irq interface. Also some collateral cleanup
(local_timer_ack() is gone, and the interrupt handler is strictly
private to each driver).

PPIs are now useable for more than just the local timers.

Additional testing by David Brown (msm8250 and msm8660) and
Shawn Guo (imx6q).

Cc: David Brown <davidb@codeaurora.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Acked-by: David Brown <davidb@codeaurora.org>
Tested-by: David Brown <davidb@codeaurora.org>
Tested-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
12 years agoARM: gic: consolidate PPI handling
Marc Zyngier [Wed, 20 Jul 2011 15:24:14 +0000 (16:24 +0100)]
ARM: gic: consolidate PPI handling

PPI handling is a bit of an odd beast. It uses its own low level
handling code and is hardwired to the local timers (hence lacking
a registration interface).

Instead, switch the low handling to the normal SPI handling code.
PPIs are handled by the handle_percpu_devid_irq flow.

This also allows the removal of some duplicated code.

Cc: Kukjin Kim <kgene.kim@samsung.com>
Cc: David Brown <davidb@codeaurora.org>
Cc: Bryan Huntsman <bryanh@codeaurora.org>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Magnus Damm <magnus.damm@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Acked-by: David Brown <davidb@codeaurora.org>
Tested-by: David Brown <davidb@codeaurora.org>
Tested-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
12 years agoMerge commit '32cffdd' into ppi-irq-core-for-rmk
Marc Zyngier [Sun, 23 Oct 2011 12:32:19 +0000 (13:32 +0100)]
Merge commit '32cffdd' into ppi-irq-core-for-rmk

12 years agoMerge branch 'samsung-fixes-4' of git://github.com/kgene/linux-samsung
Linus Torvalds [Sun, 23 Oct 2011 07:44:40 +0000 (10:44 +0300)]
Merge branch 'samsung-fixes-4' of git://github.com/kgene/linux-samsung

* 'samsung-fixes-4' of git://github.com/kgene/linux-samsung:
  ARM: S3C24XX: Fix s3c24xx build errors if !CONFIG_PM
  ARM: S5P: fix offset calculation on gpio-interrupt

12 years agoMerge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groec...
Linus Torvalds [Sun, 23 Oct 2011 07:43:31 +0000 (10:43 +0300)]
Merge branch 'hwmon-for-linus' of git://git./linux/kernel/git/groeck/linux-staging

* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (w83627ehf) Fix negative 8-bit temperature values

12 years agoARM: S3C24XX: Fix s3c24xx build errors if !CONFIG_PM
Domenico Andreoli [Fri, 21 Oct 2011 19:00:53 +0000 (04:00 +0900)]
ARM: S3C24XX: Fix s3c24xx build errors if !CONFIG_PM

v2:
- register_syscore_ops(&s3c24xx_irq_syscore_ops) does not need to be
  conditionally compiled out, it is already optimized out on !CONFIG_PM
- fix also s3c2412 and s3c2416 affected by the same build issue

v1:
s3c2440.c fails to build if !CONFIG_PM because in such case
s3c2410_pm_syscore_ops is not defined. Same error should happen also
in s3c2410.c and s3c2442.c

Signed-off-by: Domenico Andreoli <cavokz@gmail.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
12 years agoMerge git://github.com/herbertx/crypto
Linus Torvalds [Fri, 21 Oct 2011 14:02:18 +0000 (17:02 +0300)]
Merge git://github.com/herbertx/crypto

* git://github.com/herbertx/crypto:
  crypto: ghash - Avoid null pointer dereference if no key is set

12 years agoMerge branch 'fix/hda' of git://github.com/tiwai/sound
Linus Torvalds [Fri, 21 Oct 2011 14:01:21 +0000 (17:01 +0300)]
Merge branch 'fix/hda' of git://github.com/tiwai/sound

* 'fix/hda' of git://github.com/tiwai/sound:
  ALSA: HDA: conexant support for Lenovo T520/W520
  ALSA: hda - Add position_fix quirk for Dell Inspiron 1010

12 years agocrypto: ghash - Avoid null pointer dereference if no key is set
Nick Bowler [Thu, 20 Oct 2011 12:16:55 +0000 (14:16 +0200)]
crypto: ghash - Avoid null pointer dereference if no key is set

The ghash_update function passes a pointer to gf128mul_4k_lle which will
be NULL if ghash_setkey is not called or if the most recent call to
ghash_setkey failed to allocate memory.  This causes an oops.  Fix this
up by returning an error code in the null case.

This is trivially triggered from unprivileged userspace through the
AF_ALG interface by simply writing to the socket without setting a key.

The ghash_final function has a similar issue, but triggering it requires
a memory allocation failure in ghash_setkey _after_ at least one
successful call to ghash_update.

  BUG: unable to handle kernel NULL pointer dereference at 00000670
  IP: [<d88c92d4>] gf128mul_4k_lle+0x23/0x60 [gf128mul]
  *pde = 00000000
  Oops: 0000 [#1] PREEMPT SMP
  Modules linked in: ghash_generic gf128mul algif_hash af_alg nfs lockd nfs_acl sunrpc bridge ipv6 stp llc

  Pid: 1502, comm: hashatron Tainted: G        W   3.1.0-rc9-00085-ge9308cf #32 Bochs Bochs
  EIP: 0060:[<d88c92d4>] EFLAGS: 00000202 CPU: 0
  EIP is at gf128mul_4k_lle+0x23/0x60 [gf128mul]
  EAX: d69db1f0 EBX: d6b8ddac ECX: 00000004 EDX: 00000000
  ESI: 00000670 EDI: d6b8ddac EBP: d6b8ddc8 ESP: d6b8dda4
   DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
  Process hashatron (pid: 1502, ti=d6b8c000 task=d6810000 task.ti=d6b8c000)
  Stack:
   00000000 d69db1f0 00000163 00000000 d6b8ddc8 c101a520 d69db1f0 d52aa000
   00000ff0 d6b8dde8 d88d310f d6b8a3f8 d52aa000 00001000 d88d502c d6b8ddfc
   00001000 d6b8ddf4 c11676ed d69db1e8 d6b8de24 c11679ad d52aa000 00000000
  Call Trace:
   [<c101a520>] ? kmap_atomic_prot+0x37/0xa6
   [<d88d310f>] ghash_update+0x85/0xbe [ghash_generic]
   [<c11676ed>] crypto_shash_update+0x18/0x1b
   [<c11679ad>] shash_ahash_update+0x22/0x36
   [<c11679cc>] shash_async_update+0xb/0xd
   [<d88ce0ba>] hash_sendpage+0xba/0xf2 [algif_hash]
   [<c121b24c>] kernel_sendpage+0x39/0x4e
   [<d88ce000>] ? 0xd88cdfff
   [<c121b298>] sock_sendpage+0x37/0x3e
   [<c121b261>] ? kernel_sendpage+0x4e/0x4e
   [<c10b4dbc>] pipe_to_sendpage+0x56/0x61
   [<c10b4e1f>] splice_from_pipe_feed+0x58/0xcd
   [<c10b4d66>] ? splice_from_pipe_begin+0x10/0x10
   [<c10b51f5>] __splice_from_pipe+0x36/0x55
   [<c10b4d66>] ? splice_from_pipe_begin+0x10/0x10
   [<c10b6383>] splice_from_pipe+0x51/0x64
   [<c10b63c2>] ? default_file_splice_write+0x2c/0x2c
   [<c10b63d5>] generic_splice_sendpage+0x13/0x15
   [<c10b4d66>] ? splice_from_pipe_begin+0x10/0x10
   [<c10b527f>] do_splice_from+0x5d/0x67
   [<c10b6865>] sys_splice+0x2bf/0x363
   [<c129373b>] ? sysenter_exit+0xf/0x16
   [<c104dc1e>] ? trace_hardirqs_on_caller+0x10e/0x13f
   [<c129370c>] sysenter_do_call+0x12/0x32
  Code: 83 c4 0c 5b 5e 5f c9 c3 55 b9 04 00 00 00 89 e5 57 8d 7d e4 56 53 8d 5d e4 83 ec 18 89 45 e0 89 55 dc 0f b6 70 0f c1 e6 04 01 d6 <f3> a5 be 0f 00 00 00 4e 89 d8 e8 48 ff ff ff 8b 45 e0 89 da 0f
  EIP: [<d88c92d4>] gf128mul_4k_lle+0x23/0x60 [gf128mul] SS:ESP 0068:d6b8dda4
  CR2: 0000000000000670
  ---[ end trace 4eaa2a86a8e2da24 ]---
  note: hashatron[1502] exited with preempt_count 1
  BUG: scheduling while atomic: hashatron/1502/0x10000002
  INFO: lockdep is turned off.
  [...]

Signed-off-by: Nick Bowler <nbowler@elliptictech.com>
Cc: stable@kernel.org [2.6.37+]
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
12 years agoARM: S5P: fix offset calculation on gpio-interrupt
Marek Szyprowski [Fri, 21 Oct 2011 09:04:54 +0000 (18:04 +0900)]
ARM: S5P: fix offset calculation on gpio-interrupt

Offsets of the irq controller registers were calculated
correctly only for first GPIO bank. This patch fixes
calculation of the register offsets for all GPIO banks.

Reported-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
12 years agoARM: smp: fix clipping of number of CPUs
Russell King [Thu, 20 Oct 2011 21:04:18 +0000 (22:04 +0100)]
ARM: smp: fix clipping of number of CPUs

Rather than clipping the number of CPUs using the compile-time NR_CPUS
constant, use the runtime nr_cpu_ids value instead.  This allows the
nr_cpus command line option to work as expected.

Cc: <stable@kernel.org>
Reported-by: Mark Salter <msalter@redhat.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
12 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
Linus Torvalds [Thu, 20 Oct 2011 19:16:28 +0000 (22:16 +0300)]
Merge git://git./linux/kernel/git/davem/sparc

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
  sparc: Add alignment flag to PCI expansion resources
  sparc: Avoid calling sigprocmask()
  sparc: Use set_current_blocked()
  sparc32,leon: SRMMU MMU Table probe fix

12 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Linus Torvalds [Thu, 20 Oct 2011 19:15:20 +0000 (22:15 +0300)]
Merge git://git./linux/kernel/git/davem/net

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
  fib_rules: fix unresolved_rules counting
  r8169: fix wrong eee setting for rlt8111evl
  r8169: fix driver shutdown WoL regression.
  ehea: Change maintainer to me
  pptp: pptp_rcv_core() misses pskb_may_pull() call
  tproxy: copy transparent flag when creating a time wait
  pptp: fix skb leak in pptp_xmit()
  bonding: use local function pointer of bond->recv_probe in bond_handle_frame
  smsc911x: Add support for SMSC LAN89218
  tg3: negate USE_PHYLIB flag check
  netconsole: enable netconsole can make net_device refcnt incorrent
  bluetooth: Properly clone LSM attributes to newly created child connections
  l2tp: fix a potential skb leak in l2tp_xmit_skb()
  bridge: fix hang on removal of bridge via netlink
  x25: Prevent skb overreads when checking call user data
  x25: Handle undersized/fragmented skbs
  x25: Validate incoming call user data lengths
  udplite: fast-path computation of checksum coverage
  IPVS netns shutdown/startup dead-lock
  netfilter: nf_conntrack: fix event flooding in GRE protocol tracker

12 years agoMerge branch 'depends/rmk/smp' into tmp
Arnd Bergmann [Thu, 20 Oct 2011 15:57:46 +0000 (17:57 +0200)]
Merge branch 'depends/rmk/smp' into tmp

12 years agoMerge branch 'depends/rmk/debug' into tmp
Arnd Bergmann [Thu, 20 Oct 2011 15:57:42 +0000 (17:57 +0200)]
Merge branch 'depends/rmk/debug' into tmp

12 years agohwmon: (w83627ehf) Fix negative 8-bit temperature values
Jean Delvare [Thu, 20 Oct 2011 07:06:45 +0000 (03:06 -0400)]
hwmon: (w83627ehf) Fix negative 8-bit temperature values

Since 8-bit temperature values are now handled in 16-bit struct
members, values have to be cast to s8 for negative temperatures to be
properly handled. This is broken since kernel version 2.6.39
(commit bce26c58df86599c9570cee83eac58bdaae760e4.)

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Guenter Roeck <guenter.roeck@ericsson.com>
Cc: stable@kernel.org # 2.6.39+
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
12 years agoMerge branch 'imx-features-for-arnd' of git://git.pengutronix.de/git/imx/linux-2...
Arnd Bergmann [Thu, 20 Oct 2011 13:14:25 +0000 (15:14 +0200)]
Merge branch 'imx-features-for-arnd' of git://git.pengutronix.de/git/imx/linux-2.6 into imx/devel

Conflicts:
arch/arm/mach-mx5/clock-mx51-mx53.c
arch/arm/mach-mx5/devices-imx53.h

12 years agomm: fix race between mremap and removing migration entry
Hugh Dickins [Wed, 19 Oct 2011 19:50:35 +0000 (12:50 -0700)]
mm: fix race between mremap and removing migration entry

I don't usually pay much attention to the stale "? " addresses in
stack backtraces, but this lucky report from Pawel Sikora hints that
mremap's move_ptes() has inadequate locking against page migration.

 3.0 BUG_ON(!PageLocked(p)) in migration_entry_to_page():
 kernel BUG at include/linux/swapops.h:105!
 RIP: 0010:[<ffffffff81127b76>]  [<ffffffff81127b76>]
                       migration_entry_wait+0x156/0x160
  [<ffffffff811016a1>] handle_pte_fault+0xae1/0xaf0
  [<ffffffff810feee2>] ? __pte_alloc+0x42/0x120
  [<ffffffff8112c26b>] ? do_huge_pmd_anonymous_page+0xab/0x310
  [<ffffffff81102a31>] handle_mm_fault+0x181/0x310
  [<ffffffff81106097>] ? vma_adjust+0x537/0x570
  [<ffffffff81424bed>] do_page_fault+0x11d/0x4e0
  [<ffffffff81109a05>] ? do_mremap+0x2d5/0x570
  [<ffffffff81421d5f>] page_fault+0x1f/0x30

mremap's down_write of mmap_sem, together with i_mmap_mutex or lock,
and pagetable locks, were good enough before page migration (with its
requirement that every migration entry be found) came in, and enough
while migration always held mmap_sem; but not enough nowadays, when
there's memory hotremove and compaction.

The danger is that move_ptes() lets a migration entry dodge around
behind remove_migration_pte()'s back, so it's in the old location when
looking at the new, then in the new location when looking at the old.

Either mremap's move_ptes() must additionally take anon_vma lock(), or
migration's remove_migration_pte() must stop peeking for is_swap_entry()
before it takes pagetable lock.

Consensus chooses the latter: we prefer to add overhead to migration
than to mremapping, which gets used by JVMs and by exec stack setup.

Reported-and-tested-by: Paweł Sikora <pluto@agmk.net>
Signed-off-by: Hugh Dickins <hughd@google.com>
Acked-by: Andrea Arcangeli <aarcange@redhat.com>
Acked-by: Mel Gorman <mgorman@suse.de>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agosparc: Add alignment flag to PCI expansion resources
Kjetil Oftedal [Wed, 19 Oct 2011 23:20:50 +0000 (16:20 -0700)]
sparc: Add alignment flag to PCI expansion resources

Currently no type of alignment is specified for PCI expansion roms while
parsing the openfirmware tree. This causes calls to pci_map_rom() to fail.
IORESOURCE_SIZEALIGN is the default alignment used for rom resouces in
pci/probe.c, and has been verified to work with various cards on a ultra 10.

Signed-off-By: Kjetil Oftedal <oftedal@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agofib_rules: fix unresolved_rules counting
Yan, Zheng [Mon, 17 Oct 2011 15:20:28 +0000 (15:20 +0000)]
fib_rules: fix unresolved_rules counting

we should decrease ops->unresolved_rules when deleting a unresolved rule.

Signed-off-by: Zheng Yan <zheng.z.yan@intel.com>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agor8169: fix wrong eee setting for rlt8111evl
hayeswang [Thu, 13 Oct 2011 20:14:37 +0000 (20:14 +0000)]
r8169: fix wrong eee setting for rlt8111evl

Correct the wrong parameter for setting EEE for RTL8111E-VL.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agor8169: fix driver shutdown WoL regression.
françois romieu [Fri, 14 Oct 2011 00:57:45 +0000 (00:57 +0000)]
r8169: fix driver shutdown WoL regression.

Due to commit 92fc43b4159b518f5baae57301f26d770b0834c9 ("r8169: modify the
flow of the hw reset."), rtl8169_hw_reset stomps during driver shutdown on
RxConfig bits which are needed for WOL on some versions of the hardware.

As these bits were formerly set from the r81{0x, 68}_pll_power_down methods,
factor them out for use in the driver shutdown (rtl_shutdown) handler.

I favored __rtl8169_get_wol() -hardware state indication- over
RTL_FEATURE_WOL as the latter has become a good candidate for removal.

Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Cc: Hayes <hayeswang@realtek.com>
Tested-by: Marc Ballarin <ballarin.marc@gmx.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agoehea: Change maintainer to me
Thadeu Lima de Souza Cascardo [Thu, 13 Oct 2011 09:56:19 +0000 (09:56 +0000)]
ehea: Change maintainer to me

Breno Leitao has passed the maintainership to me.

Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@linux.vnet.ibm.com>
Cc: Breno Leitao <leitao@linux.vnet.ibm.com>
Acked-by: Breno Leitão <leitao@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agoMerge branch 'v4l_for_linus' of git://linuxtv.org/mchehab/for_linus
Linus Torvalds [Wed, 19 Oct 2011 13:44:11 +0000 (06:44 -0700)]
Merge branch 'v4l_for_linus' of git://linuxtv.org/mchehab/for_linus

* 'v4l_for_linus' of git://linuxtv.org/mchehab/for_linus:
  [media] videodev: fix a NULL pointer dereference in v4l2_device_release()

12 years agoMerge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Linus Torvalds [Wed, 19 Oct 2011 13:43:24 +0000 (06:43 -0700)]
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  drm/radeon/kms/atom: fix handling of FB scratch indices
  drm/radeon/kms/DCE4.1: fix Select_CrtcSource EncodeMode setting for DP bridges (v2)
  drm/radeon/kms/DCE4.1: ss is not supported on the internal pplls
  drm/radeon/kms/DCE4.1: fix dig encoder to transmitter mapping
  ttm: Fix error-path using an uninitialized value

12 years ago[media] videodev: fix a NULL pointer dereference in v4l2_device_release()
Antonio Ospite [Wed, 12 Oct 2011 20:59:26 +0000 (17:59 -0300)]
[media] videodev: fix a NULL pointer dereference in v4l2_device_release()

The change in 8280b66 does not cover the case when v4l2_dev is already
NULL, fix that.

With a Kinect sensor, seen as an USB camera using GSPCA in this context,
a NULL pointer dereference BUG can be triggered by just unplugging the
device after the camera driver has been loaded.

Signed-off-by: Antonio Ospite <ospite@studenti.unina.it>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
12 years agointel-iommu: fix superpage support in pfn_to_dma_pte()
Allen Kay [Fri, 14 Oct 2011 19:32:46 +0000 (12:32 -0700)]
intel-iommu: fix superpage support in pfn_to_dma_pte()

If target_level == 0, current code breaks out of the while-loop if
SUPERPAGE bit is set. We should also break out if PTE is not present.
If we don't do this, KVM calls to iommu_iova_to_phys() will cause
pfn_to_dma_pte() to create mapping for 4KiB pages.

Signed-off-by: Allen Kay <allen.m.kay@intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
12 years agointel-iommu: set iommu_superpage on VM domains to lowest common denominator
Allen Kay [Fri, 14 Oct 2011 19:32:17 +0000 (12:32 -0700)]
intel-iommu: set iommu_superpage on VM domains to lowest common denominator

set dmar->iommu_superpage field to the smallest common denominator
of super page sizes supported by all active VT-d engines.  Initialize
this field in intel_iommu_domain_init() API so intel_iommu_map() API
will be able to use iommu_superpage field to determine the appropriate
super page size to use.

Signed-off-by: Allen Kay <allen.m.kay@intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
12 years agointel-iommu: fix return value of iommu_unmap() API
Allen Kay [Fri, 14 Oct 2011 19:31:54 +0000 (12:31 -0700)]
intel-iommu: fix return value of iommu_unmap() API

iommu_unmap() API expects IOMMU drivers to return the actual page order
of the address being unmapped.  Previous code was just returning page
order passed in from the caller.  This patch fixes this problem.

Signed-off-by: Allen Kay <allen.m.kay@intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
12 years agoMAINTAINERS: Update VT-d entry for drivers/pci -> drivers/iommu move
Roland Dreier [Tue, 11 Oct 2011 00:07:15 +0000 (17:07 -0700)]
MAINTAINERS: Update VT-d entry for drivers/pci -> drivers/iommu move

Commit 166e9278a3f9 ("x86/ia64: intel-iommu: move to drivers/iommu/")
moved the VT-d driver to drivers/iommu, but left the "F:" line in
MAINTAINERS pointing to drivers/pci, which breaks scripts/get_maintainer.pl.

Signed-off-by: Roland Dreier <roland@purestorage.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
12 years agodrm/radeon/kms/atom: fix handling of FB scratch indices
Alex Deucher [Wed, 19 Oct 2011 00:10:05 +0000 (20:10 -0400)]
drm/radeon/kms/atom: fix handling of FB scratch indices

FB scratch indices are dword indices, but we were treating
them as byte indices.  As such, we were getting the wrong
FB scratch data for non-0 indices.  Fix the indices and
guard the indexing against indices larger than the scratch
allocation.

Fixes memory corruption on some boards if data was written
past the end of the FB scratch array.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reported-by: Dave Airlie <airlied@redhat.com>
Tested-by: Dave Airlie <airlied@redhat.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
12 years agopptp: pptp_rcv_core() misses pskb_may_pull() call
Eric Dumazet [Mon, 17 Oct 2011 17:59:53 +0000 (17:59 +0000)]
pptp: pptp_rcv_core() misses pskb_may_pull() call

e1000e uses paged frags, so any layer incorrectly pulling bytes from skb
can trigger a BUG in skb_pull()

[951.142737]  [<ffffffff813d2f36>] skb_pull+0x15/0x17
[951.142737]  [<ffffffffa0286824>] pptp_rcv_core+0x126/0x19a [pptp]
[951.152725]  [<ffffffff813d17c4>] sk_receive_skb+0x69/0x105
[951.163558]  [<ffffffffa0286993>] pptp_rcv+0xc8/0xdc [pptp]
[951.165092]  [<ffffffffa02800a3>] gre_rcv+0x62/0x75 [gre]
[951.165092]  [<ffffffff81410784>] ip_local_deliver_finish+0x150/0x1c1
[951.177599]  [<ffffffff81410634>] ? ip_local_deliver_finish+0x0/0x1c1
[951.177599]  [<ffffffff81410846>] NF_HOOK.clone.7+0x51/0x58
[951.177599]  [<ffffffff81410996>] ip_local_deliver+0x51/0x55
[951.177599]  [<ffffffff814105b9>] ip_rcv_finish+0x31a/0x33e
[951.177599]  [<ffffffff8141029f>] ? ip_rcv_finish+0x0/0x33e
[951.204898]  [<ffffffff81410846>] NF_HOOK.clone.7+0x51/0x58
[951.214651]  [<ffffffff81410bb5>] ip_rcv+0x21b/0x246

pptp_rcv_core() is a nice example of a function assuming everything it
needs is available in skb head.

Reported-by: Bradley Peterson <despite@gmail.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agotproxy: copy transparent flag when creating a time wait
KOVACS Krisztian [Tue, 18 Oct 2011 10:17:35 +0000 (10:17 +0000)]
tproxy: copy transparent flag when creating a time wait

The transparent socket option setting was not copied to the time wait
socket when an inet socket was being replaced by a time wait socket. This
broke the --transparent option of the socket match and may have caused
that FIN packets belonging to sockets in FIN_WAIT2 or TIME_WAIT state
were being dropped by the packet filter.

Signed-off-by: KOVACS Krisztian <hidden@balabit.hu>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agopptp: fix skb leak in pptp_xmit()
Eric Dumazet [Mon, 17 Oct 2011 17:01:47 +0000 (17:01 +0000)]
pptp: fix skb leak in pptp_xmit()

In case we cant transmit skb, we must free it

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
CC: Dmitry Kozlov <xeb@mail.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agobonding: use local function pointer of bond->recv_probe in bond_handle_frame
Mitsuo Hayasaka [Wed, 12 Oct 2011 16:04:29 +0000 (16:04 +0000)]
bonding: use local function pointer of bond->recv_probe in bond_handle_frame

The bond->recv_probe is called in bond_handle_frame() when
a packet is received, but bond_close() sets it to NULL. So,
a panic occurs when both functions work in parallel.

Why this happen:
After null pointer check of bond->recv_probe, an sk_buff is
duplicated and bond->recv_probe is called in bond_handle_frame.
So, a panic occurs when bond_close() is called between the
check and call of bond->recv_probe.

Patch:
This patch uses a local function pointer of bond->recv_probe
in bond_handle_frame(). So, it can avoid the null pointer
dereference.

Signed-off-by: Mitsuo Hayasaka <mitsuo.hayasaka.hu@hitachi.com>
Cc: Jay Vosburgh <fubar@us.ibm.com>
Cc: Andy Gospodarek <andy@greyhouse.net>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: WANG Cong <xiyou.wangcong@gmail.com>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agosmsc911x: Add support for SMSC LAN89218
Phil Edworthy [Wed, 12 Oct 2011 02:29:39 +0000 (02:29 +0000)]
smsc911x: Add support for SMSC LAN89218

LAN89218 is register compatible with LAN911x.

Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agotg3: negate USE_PHYLIB flag check
Jiri Pirko [Tue, 11 Oct 2011 23:00:41 +0000 (23:00 +0000)]
tg3: negate USE_PHYLIB flag check

USE_PHYLIB flag in tg3_remove_one() is being checked incorrectly. This
results tg3_phy_fini->phy_disconnect is never called and when tg3 module
is removed.

In my case this resulted in panics in phy_state_machine calling function
phydev->adjust_link.

So correct this check.

Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Acked-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agonetconsole: enable netconsole can make net_device refcnt incorrent
Gao feng [Tue, 11 Oct 2011 16:08:11 +0000 (16:08 +0000)]
netconsole: enable netconsole can make net_device refcnt incorrent

There is no check if netconsole is enabled current.
so when exec echo 1 > enabled;
the reference of net_device will increment always.

Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com>
Acked-by: Flavio Leitner <fbl@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agobluetooth: Properly clone LSM attributes to newly created child connections
Paul Moore [Fri, 7 Oct 2011 09:40:59 +0000 (09:40 +0000)]
bluetooth: Properly clone LSM attributes to newly created child connections

The Bluetooth stack has internal connection handlers for all of the various
Bluetooth protocols, and unfortunately, they are currently lacking the LSM
hooks found in the core network stack's connection handlers.  I say
unfortunately, because this can cause problems for users who have have an
LSM enabled and are using certain Bluetooth devices.  See one problem
report below:

 * http://bugzilla.redhat.com/show_bug.cgi?id=741703

In order to keep things simple at this point in time, this patch fixes the
problem by cloning the parent socket's LSM attributes to the newly created
child socket.  If we decide we need a more elaborate LSM marking mechanism
for Bluetooth (I somewhat doubt this) we can always revisit this decision
in the future.

Reported-by: James M. Cape <jcape@ignore-your.tv>
Signed-off-by: Paul Moore <pmoore@redhat.com>
Acked-by: James Morris <jmorris@namei.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agol2tp: fix a potential skb leak in l2tp_xmit_skb()
Eric Dumazet [Fri, 7 Oct 2011 05:35:46 +0000 (05:35 +0000)]
l2tp: fix a potential skb leak in l2tp_xmit_skb()

l2tp_xmit_skb() can leak one skb if skb_cow_head() returns an error.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agobridge: fix hang on removal of bridge via netlink
stephen hemminger [Thu, 6 Oct 2011 11:19:41 +0000 (11:19 +0000)]
bridge: fix hang on removal of bridge via netlink

Need to cleanup bridge device timers and ports when being bridge
device is being removed via netlink.

This fixes the problem of observed when doing:
 ip link add br0 type bridge
 ip link set dev eth1 master br0
 ip link set br0 up
 ip link del br0

which would cause br0 to hang in unregister_netdev because
of leftover reference count.

Reported-by: Sridhar Samudrala <sri@us.ibm.com>
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Acked-by: Sridhar Samudrala <sri@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agoMerge branch 'mach_memory_h' of git://git.linaro.org/people/nico/linux into devel...
Russell King [Tue, 18 Oct 2011 12:40:54 +0000 (13:40 +0100)]
Merge branch 'mach_memory_h' of git://git.linaro.org/people/nico/linux into devel-stable

12 years agoarm/mx5: add device tree support for imx51 babbage
Shawn Guo [Mon, 17 Oct 2011 00:42:17 +0000 (08:42 +0800)]
arm/mx5: add device tree support for imx51 babbage

It adds device tree support for imx51 babbage board.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
12 years agoarm/mx5: add device tree support for imx53 boards
Shawn Guo [Mon, 17 Oct 2011 00:42:16 +0000 (08:42 +0800)]
arm/mx5: add device tree support for imx53 boards

It adds device tree support for imx53 boards.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
12 years agocputimer: Cure lock inversion
Peter Zijlstra [Mon, 17 Oct 2011 09:50:30 +0000 (11:50 +0200)]
cputimer: Cure lock inversion

There's a lock inversion between the cputimer->lock and rq->lock;
notably the two callchains involved are:

 update_rlimit_cpu()
   sighand->siglock
   set_process_cpu_timer()
     cpu_timer_sample_group()
       thread_group_cputimer()
         cputimer->lock
         thread_group_cputime()
           task_sched_runtime()
             ->pi_lock
             rq->lock

 scheduler_tick()
   rq->lock
   task_tick_fair()
     update_curr()
       account_group_exec()
         cputimer->lock

Where the first one is enabling a CLOCK_PROCESS_CPUTIME_ID timer, and
the second one is keeping up-to-date.

This problem was introduced by e8abccb7193 ("posix-cpu-timers: Cure
SMP accounting oddities").

Cure the problem by removing the cputimer->lock and rq->lock nesting,
this leaves concurrent enablers doing duplicate work, but the time
wasted should be on the same order otherwise wasted spinning on the
lock and the greater-than assignment filter should ensure we preserve
monotonicity.

Reported-by: Dave Jones <davej@redhat.com>
Reported-by: Simon Kirby <sim@hostway.ca>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: stable@kernel.org
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Link: http://lkml.kernel.org/r/1318928713.21167.4.camel@twins
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
12 years agodrm/radeon/kms/DCE4.1: fix Select_CrtcSource EncodeMode setting for DP bridges (v2)
Alex Deucher [Wed, 12 Oct 2011 22:49:53 +0000 (18:49 -0400)]
drm/radeon/kms/DCE4.1: fix Select_CrtcSource EncodeMode setting for DP bridges (v2)

Settings in this table reflect the physical panel/connector rather
than the internal dig encoding.

v2: fix typo for DRM_MODE_CONNECTOR_VGA case.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
12 years agodrm/radeon/kms/DCE4.1: ss is not supported on the internal pplls
Alex Deucher [Wed, 12 Oct 2011 22:44:33 +0000 (18:44 -0400)]
drm/radeon/kms/DCE4.1: ss is not supported on the internal pplls

It's handled via external clock.  It should already be protected
by the external ss flag, but add an explicit check just in case.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
12 years agodrm/radeon/kms/DCE4.1: fix dig encoder to transmitter mapping
Alex Deucher [Wed, 12 Oct 2011 22:44:32 +0000 (18:44 -0400)]
drm/radeon/kms/DCE4.1: fix dig encoder to transmitter mapping

llano has fully routeable dig encoders similar to DCE3.2 while
ontario has a hardcoded mapping similar to DCE4.0.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
12 years agoALSA: HDA: conexant support for Lenovo T520/W520
Daniel Suchy [Tue, 18 Oct 2011 09:09:44 +0000 (11:09 +0200)]
ALSA: HDA: conexant support for Lenovo T520/W520

This is patch for Conexant codec of Intel HDA driver, adding new quirk
for Lenovo Thinkpad T520 and W520. Conexant autodetection works fine for
T520 (similar subsystem ID is used also in W520 model) and detects more
mixer features compared to generic (fallback) Lenovo quirk with
hardcoded options in Conexant codec.

Patch was activelly tested with Linux 3.0.4, 3.0.6 and 3.0.7 without any
problems.

Signed-off-by: Daniel Suchy <danny@danysek.cz>
Cc: <stable@kernel.org> [3.0+]
Signed-off-by: Takashi Iwai <tiwai@suse.de>
12 years agoALSA: hda - Add position_fix quirk for Dell Inspiron 1010
Takashi Iwai [Tue, 18 Oct 2011 08:44:05 +0000 (10:44 +0200)]
ALSA: hda - Add position_fix quirk for Dell Inspiron 1010

The previous fix for the position-buffer check gives yet another
regression on a Dell laptop.  The safest fix right now is to add a
static quirk for this device (and better to apply it for stable
kernels too).

Reported-by: Éric Piel <Eric.Piel@tremplin-utc.net>
Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
12 years agottm: Fix error-path using an uninitialized value
Thomas Hellstrom [Mon, 17 Oct 2011 11:27:34 +0000 (13:27 +0200)]
ttm: Fix error-path using an uninitialized value

Pointed out by Michel Daenzer.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
12 years agoLinux 3.1-rc10 v3.1-rc10
Linus Torvalds [Tue, 18 Oct 2011 04:06:23 +0000 (21:06 -0700)]
Linux 3.1-rc10

12 years agoMerge branch 'nf' of git://1984.lsi.us.es/net
David S. Miller [Mon, 17 Oct 2011 23:38:03 +0000 (19:38 -0400)]
Merge branch 'nf' of git://1984.lsi.us.es/net

12 years agox25: Prevent skb overreads when checking call user data
Matthew Daley [Fri, 14 Oct 2011 18:45:05 +0000 (18:45 +0000)]
x25: Prevent skb overreads when checking call user data

x25_find_listener does not check that the amount of call user data given
in the skb is big enough in per-socket comparisons, hence buffer
overreads may occur.  Fix this by adding a check.

Signed-off-by: Matthew Daley <mattjd@gmail.com>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Andrew Hendry <andrew.hendry@gmail.com>
Cc: stable <stable@kernel.org>
Acked-by: Andrew Hendry <andrew.hendry@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agox25: Handle undersized/fragmented skbs
Matthew Daley [Fri, 14 Oct 2011 18:45:04 +0000 (18:45 +0000)]
x25: Handle undersized/fragmented skbs

There are multiple locations in the X.25 packet layer where a skb is
assumed to be of at least a certain size and that all its data is
currently available at skb->data.  These assumptions are not checked,
hence buffer overreads may occur.  Use pskb_may_pull to check these
minimal size assumptions and ensure that data is available at skb->data
when necessary, as well as use skb_copy_bits where needed.

Signed-off-by: Matthew Daley <mattjd@gmail.com>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Andrew Hendry <andrew.hendry@gmail.com>
Cc: stable <stable@kernel.org>
Acked-by: Andrew Hendry <andrew.hendry@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>