platform/kernel/linux-rpi.git
11 years agoMerge tag 'omap-for-v3.10/usb-signed' of git://git.kernel.org/pub/scm/linux/kernel...
Arnd Bergmann [Mon, 8 Apr 2013 17:06:51 +0000 (19:06 +0200)]
Merge tag 'omap-for-v3.10/usb-signed' of git://git./linux/kernel/git/tmlind/linux-omap into next/drivers

From Tony Lindgren <tony@atomide.com>:

EHCI platform data related changes for v3.10 merge window.
These are needed for the USB PHY support, and are based on
commit 1f0972f5 from Felipe Balbi's tree as agreed on the
mailing lists.

* tag 'omap-for-v3.10/usb-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (21 commits)
  ARM: dts: omap3-beagle: Add USB Host support
  ARM: dts: OMAP3: Add HS USB Host IP nodes
  ARM: dts: OMAP4: Add HS USB Host IP nodes
  ARM: OMAP: zoom: Adapt to ehci-omap changes
  ARM: OMAP3: overo: Adapt to ehci-omap changes
  ARM: OMAP3: omap3touchbook: Adapt to ehci-omap changes
  ARM: OMAP3: omap3stalker: Adapt to ehci-omap changes
  ARM: OMAP3: omap3pandora: Adapt to ehci-omap changes
  ARM: OMAP3: omap3evm: Adapt to ehci-omap changes
  ARM: OMAP3: igep0020: Adapt to ehci-omap changes
  ARM: OMAP: devkit8000: Adapt to ehci-omap changes
  ARM: OMAP3: cm-t3517: Adapt to ehci-omap changes
  ARM: OMAP3: cm-t35: Adapt to ehci-omap changes
  ARM: OMAP: AM3517evm: Adapt to ehci-omap changes
  ARM: OMAP: AM3517crane: Adapt to ehci-omap changes
  ARM: OMAP3: 3630SDP: Adapt to ehci-omap changes
  ARM: OMAP3: 3430SDP: Adapt to ehci-omap changes
  ARM: OMAP3: Beagle: Adapt to ehci-omap changes
  ARM: OMAP2+: omap4panda: Adapt to ehci-omap changes
  ARM: OMAP2+: omap-usb-host: Add usbhs_init_phys()
  ...

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
11 years agoMerge branch 'zynq/clksrc/cleanup' of git://git.xilinx.com/linux-xlnx into next/drivers
Arnd Bergmann [Mon, 8 Apr 2013 16:34:19 +0000 (18:34 +0200)]
Merge branch 'zynq/clksrc/cleanup' of git://git.xilinx.com/linux-xlnx into next/drivers

From Michal Simek <michal.simek@xilinx.com>:

* 'zynq/clksrc/cleanup' of git://git.xilinx.com/linux-xlnx:
  arm: zynq: Move timer to generic location
  arm: zynq: Do not use xilinx specific function names
  arm: zynq: Move timer to clocksource interface
  arm: zynq: Use standard timer binding

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
11 years agoMerge tag 'vt8500/pinctrl' of git://server.prisktech.co.nz/git/linuxwmt into next...
Arnd Bergmann [Mon, 8 Apr 2013 16:26:15 +0000 (18:26 +0200)]
Merge tag 'vt8500/pinctrl' of git://server.prisktech.co.nz/git/linuxwmt into next/drivers

From Tony Prisk <linux@prisktech.co.nz>:

arm: vt8500: Add pinctrl driver for arch-vt8500

This series adds support for the pinctrl/gpio module on all arch-vt8500
supported SoCs.

As part of the review process, some tidy up is also done to
drivers/of/base.c to remove some code that is being constantly duplicated.

Also, a patch for the bcm2835 pinctrl driver is included to take advantage
of the new of/base.c code.

* tag 'vt8500/pinctrl' of git://server.prisktech.co.nz/git/linuxwmt: (606 commits)
  pinctrl: bcm2835: make use of of_property_read_u32_index()
  gpio: vt8500: Remove arch-vt8500 gpio driver
  arm: vt8500: Remove gpio devicetree nodes
  arm: dts: vt8500: Update Wondermedia SoC dtsi files for pinctrl driver
  pinctrl: gpio: vt8500: Add pincontrol driver for arch-vt8500
  arm: vt8500: Increase available GPIOs on arch-vt8500
  of: Remove duplicated code for validating property and value
  of: Add support for reading a u32 from a multi-value property.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
11 years agoMerge tag 'renesas-intc-external-irq2-for-v3.10' of git://git.kernel.org/pub/scm...
Arnd Bergmann [Mon, 8 Apr 2013 15:52:35 +0000 (17:52 +0200)]
Merge tag 'renesas-intc-external-irq2-for-v3.10' of git://git./linux/kernel/git/horms/renesas into next/drivers

From Simon Horman <horms+renesas@verge.net.au>:

Update for Renesas INTC External IRQ pin driver for v3.10

This adds support for shared interrupt lines to the
Renesas INTC External IRQ pin driver which has already
been queued up for v3.10 (tag renesas-intc-external-irq-for-v3.10).

* tag 'renesas-intc-external-irq2-for-v3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  irqchip: intc-irqpin: Add support for shared interrupt lines

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
11 years agoarm: zynq: Move timer to generic location
Michal Simek [Wed, 20 Mar 2013 09:46:01 +0000 (10:46 +0100)]
arm: zynq: Move timer to generic location

Move zynq timer out of mach folder to generic location
and enable it.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
11 years agoarm: zynq: Do not use xilinx specific function names
Michal Simek [Wed, 27 Mar 2013 11:05:28 +0000 (12:05 +0100)]
arm: zynq: Do not use xilinx specific function names

Remove all xilinx specific names from the driver
because this is generic driver for cadence ttc.
xttc->ttc
ttcps->ttc
...

No functional changes in this driver.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
11 years agoarm: zynq: Move timer to clocksource interface
Michal Simek [Wed, 20 Mar 2013 09:24:59 +0000 (10:24 +0100)]
arm: zynq: Move timer to clocksource interface

Use clocksource timer initialization.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
11 years agoarm: zynq: Use standard timer binding
Michal Simek [Wed, 20 Mar 2013 09:15:28 +0000 (10:15 +0100)]
arm: zynq: Use standard timer binding

Use cdns,ttc because this driver is Cadence Rev06
Triple Timer Counter and everybody can use it
without xilinx specific function name or probing.

Also use standard dt description for timer
and also prepare for moving to clocksource
initialization.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
11 years agopinctrl: bcm2835: make use of of_property_read_u32_index()
Stephen Warren [Thu, 28 Mar 2013 05:09:57 +0000 (05:09 +0000)]
pinctrl: bcm2835: make use of of_property_read_u32_index()

Use the new standard API of_property_read_u32_index() instead of open-
coding it.

Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Tony Prisk <linux@prisktech.co.nz>
11 years agogpio: vt8500: Remove arch-vt8500 gpio driver
Tony Prisk [Wed, 20 Feb 2013 04:29:33 +0000 (17:29 +1300)]
gpio: vt8500: Remove arch-vt8500 gpio driver

With the move to a combined pinctrl/gpio driver, the arch-vt8500
gpio driver is no longer required.

Signed-off-by: Tony Prisk <linux@prisktech.co.nz>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
11 years agoarm: vt8500: Remove gpio devicetree nodes
Tony Prisk [Wed, 20 Feb 2013 04:28:56 +0000 (17:28 +1300)]
arm: vt8500: Remove gpio devicetree nodes

Remove the gpio related devicetree nodes as these are no longer required
with the move to a combined pinctrl/gpio driver.

Signed-off-by: Tony Prisk <linux@prisktech.co.nz>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
11 years agoarm: dts: vt8500: Update Wondermedia SoC dtsi files for pinctrl driver
Tony Prisk [Tue, 19 Feb 2013 20:52:23 +0000 (09:52 +1300)]
arm: dts: vt8500: Update Wondermedia SoC dtsi files for pinctrl driver

This patch adds pinctrl nodes to the VIA VT8500 and Wondermedia SoC dtsi
files to support the pinctrl driver.

Signed-off-by: Tony Prisk <linux@prisktech.co.nz>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
11 years agopinctrl: gpio: vt8500: Add pincontrol driver for arch-vt8500
Tony Prisk [Tue, 19 Feb 2013 20:32:19 +0000 (09:32 +1300)]
pinctrl: gpio: vt8500: Add pincontrol driver for arch-vt8500

This patch adds support for the GPIO/pinmux controller found on the VIA
VT8500 and Wondermedia WM8xxx-series SoCs.

Each pin within the controller is capable of operating as a GPIO or as
an alternate function. The pins are numbered according to their control
bank/bit so that if new pins are added, the existing numbering is maintained.

All currently supported SoCs are included: VT8500, WM8505, WM8650, WM8750 and
WM8850.

Signed-off-by: Tony Prisk <linux@prisktech.co.nz>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
11 years agoarm: vt8500: Increase available GPIOs on arch-vt8500
Tony Prisk [Sat, 9 Mar 2013 05:22:30 +0000 (18:22 +1300)]
arm: vt8500: Increase available GPIOs on arch-vt8500

With the inclusion of the pin control driver, more GPIO pins have been
identified on the arch-vt8500 SoCs requiring an increase in the available
GPIOs.

Signed-off-by: Tony Prisk <linux@prisktech.co.nz>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
11 years agoof: Remove duplicated code for validating property and value
Tony Prisk [Wed, 3 Apr 2013 04:57:11 +0000 (17:57 +1300)]
of: Remove duplicated code for validating property and value

Several functions in of/base.c have the same code duplicated for
finding and validating a property and value.

struct property *prop = of_find_property(np, propname, NULL);
if (!prop)
return -EINVAL;
if (!prop->value)
return -ENODATA;
if (<some length> > prop->length)
return -EOVERFLOW;

This patch adds of_find_property_value_of_size() which performs the
equivalent of the above code and removes the instances where it was
duplicated in several functions.

Reported-by: Rob Herring <robherring2@gmail.com>
Signed-off-by: Tony Prisk <linux@prisktech.co.nz>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Rob Herring <rob.herring@calxeda.com>
11 years agoof: Add support for reading a u32 from a multi-value property.
Tony Prisk [Sat, 23 Mar 2013 04:02:15 +0000 (17:02 +1300)]
of: Add support for reading a u32 from a multi-value property.

This patch adds an of_property_read_u32_index() function to allow
reading a single indexed u32 value from a property containing multiple
u32 values.

Signed-off-by: Tony Prisk <linux@prisktech.co.nz>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Rob Herring <robherring2@gmail.com>
11 years agoARM: dts: omap3-beagle: Add USB Host support
Roger Quadros [Wed, 20 Mar 2013 15:45:00 +0000 (17:45 +0200)]
ARM: dts: omap3-beagle: Add USB Host support

Provide RESET and Power regulators for the USB PHY,
the USB Host port mode and the PHY device.

Also provide pin multiplexer information for USB host
pins.

CC: Benoît Cousson <b-cousson@ti.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
11 years agoARM: dts: OMAP3: Add HS USB Host IP nodes
Roger Quadros [Wed, 20 Mar 2013 15:44:59 +0000 (17:44 +0200)]
ARM: dts: OMAP3: Add HS USB Host IP nodes

Adds device nodes for HS USB Host module, TLL module,
OHCI and EHCI controllers.

CC: Benoît Cousson <b-cousson@ti.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
11 years agoARM: dts: OMAP4: Add HS USB Host IP nodes
Roger Quadros [Wed, 20 Mar 2013 15:44:58 +0000 (17:44 +0200)]
ARM: dts: OMAP4: Add HS USB Host IP nodes

Adds device nodes for HS USB Host module, TLL module,
OHCI and EHCI controllers.

CC: Benoît Cousson <b-cousson@ti.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
11 years agoARM: OMAP: zoom: Adapt to ehci-omap changes
Roger Quadros [Wed, 20 Mar 2013 15:44:57 +0000 (17:44 +0200)]
ARM: OMAP: zoom: Adapt to ehci-omap changes

Use usbhs_init_phys() to register the PHY's RESET regulator
and the NOP PHY device.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
11 years agoARM: OMAP3: overo: Adapt to ehci-omap changes
Roger Quadros [Wed, 20 Mar 2013 15:44:56 +0000 (17:44 +0200)]
ARM: OMAP3: overo: Adapt to ehci-omap changes

Use usbhs_init_phys() to register the PHY's RESET regulator
and the NOP PHY device.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
11 years agoARM: OMAP3: omap3touchbook: Adapt to ehci-omap changes
Roger Quadros [Wed, 20 Mar 2013 15:44:55 +0000 (17:44 +0200)]
ARM: OMAP3: omap3touchbook: Adapt to ehci-omap changes

Use usbhs_init_phys() to register the PHY's RESET regulator
and the NOP PHY device.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
11 years agoARM: OMAP3: omap3stalker: Adapt to ehci-omap changes
Roger Quadros [Wed, 20 Mar 2013 15:44:54 +0000 (17:44 +0200)]
ARM: OMAP3: omap3stalker: Adapt to ehci-omap changes

Use usbhs_init_phys() to register the PHY's RESET regulator
and the NOP PHY device.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
11 years agoARM: OMAP3: omap3pandora: Adapt to ehci-omap changes
Roger Quadros [Wed, 20 Mar 2013 15:44:53 +0000 (17:44 +0200)]
ARM: OMAP3: omap3pandora: Adapt to ehci-omap changes

Use usbhs_init_phys() to register the PHY's RESET regulator
and NOP PHY device. VAUX2 supplies the PHY's VCC.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
11 years agoARM: OMAP3: omap3evm: Adapt to ehci-omap changes
Roger Quadros [Wed, 20 Mar 2013 15:44:52 +0000 (17:44 +0200)]
ARM: OMAP3: omap3evm: Adapt to ehci-omap changes

Use usbhs_init_phys() to register the PHY's RESET regulator
and the NOP PHY device. VAUX2 supplies the PHY's VCC.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
11 years agoARM: OMAP3: igep0020: Adapt to ehci-omap changes
Roger Quadros [Wed, 20 Mar 2013 15:44:51 +0000 (17:44 +0200)]
ARM: OMAP3: igep0020: Adapt to ehci-omap changes

Use usbhs_init_phys() to register the PHY's RESET regulators
and the NOP PHY devices.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
11 years agoARM: OMAP: devkit8000: Adapt to ehci-omap changes
Roger Quadros [Wed, 20 Mar 2013 15:44:50 +0000 (17:44 +0200)]
ARM: OMAP: devkit8000: Adapt to ehci-omap changes

Remove deprecated USBHS platform data.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
11 years agoARM: OMAP3: cm-t3517: Adapt to ehci-omap changes
Roger Quadros [Wed, 20 Mar 2013 15:44:49 +0000 (17:44 +0200)]
ARM: OMAP3: cm-t3517: Adapt to ehci-omap changes

Use usbhs_init_phys() to register the PHY's RESET regulators
and the NOP PHY devices.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
11 years agoARM: OMAP3: cm-t35: Adapt to ehci-omap changes
Roger Quadros [Wed, 20 Mar 2013 15:44:48 +0000 (17:44 +0200)]
ARM: OMAP3: cm-t35: Adapt to ehci-omap changes

Use usbhs_init_phys() to register the PHY's RESET regulators
and the NOP PHY devices.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
11 years agoARM: OMAP: AM3517evm: Adapt to ehci-omap changes
Roger Quadros [Wed, 20 Mar 2013 15:44:47 +0000 (17:44 +0200)]
ARM: OMAP: AM3517evm: Adapt to ehci-omap changes

Use usbhs_init_phys() to register the PHY's RESET regulators
and the NOP PHY device.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
11 years agoARM: OMAP: AM3517crane: Adapt to ehci-omap changes
Roger Quadros [Wed, 20 Mar 2013 15:44:46 +0000 (17:44 +0200)]
ARM: OMAP: AM3517crane: Adapt to ehci-omap changes

Use usbhs_init_phys() to register the PHY's VCC and RESET
regulators and the NOP PHY device.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
11 years agoARM: OMAP3: 3630SDP: Adapt to ehci-omap changes
Roger Quadros [Wed, 20 Mar 2013 15:44:45 +0000 (17:44 +0200)]
ARM: OMAP3: 3630SDP: Adapt to ehci-omap changes

Use usbhs_init_phys() to register the PHY's RESET regulators
and the NOP PHY devices.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
11 years agoARM: OMAP3: 3430SDP: Adapt to ehci-omap changes
Roger Quadros [Wed, 20 Mar 2013 15:44:44 +0000 (17:44 +0200)]
ARM: OMAP3: 3430SDP: Adapt to ehci-omap changes

Use usbhs_init_phys() to register the PHY's RESET regulators
and the NOP PHY devices.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
11 years agoARM: OMAP3: Beagle: Adapt to ehci-omap changes
Roger Quadros [Wed, 20 Mar 2013 15:44:43 +0000 (17:44 +0200)]
ARM: OMAP3: Beagle: Adapt to ehci-omap changes

Use usbhs_init_phys() to register the PHY's VCC and RESET
regulators and the NOP PHY device.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
11 years agoARM: OMAP2+: omap4panda: Adapt to ehci-omap changes
Roger Quadros [Wed, 20 Mar 2013 15:44:42 +0000 (17:44 +0200)]
ARM: OMAP2+: omap4panda: Adapt to ehci-omap changes

Use usbhs_init_phys() to register the PHY's VCC and RESET
regulators and the NOP PHY device.

Get rid of managing the PHY clock as it will be done by the PHY driver.
For that to work we create a clock alias that links the PHY clock name
to the PHY device name.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
11 years agoARM: OMAP2+: omap-usb-host: Add usbhs_init_phys()
Roger Quadros [Wed, 20 Mar 2013 15:44:41 +0000 (17:44 +0200)]
ARM: OMAP2+: omap-usb-host: Add usbhs_init_phys()

This helper allows board support code to add the PHY's
VCC and RESET regulators which are GPIO controlled as well
as the NOP PHY device.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
11 years agoclocksource: make CLOCKSOURCE_OF_DECLARE type safe
Arnd Bergmann [Tue, 19 Mar 2013 14:38:50 +0000 (15:38 +0100)]
clocksource: make CLOCKSOURCE_OF_DECLARE type safe

This ensures that a function pointer passed into CLOCKSOURCE_OF_DECLARE
takes the same arguments that we use for calling that function later.

Also fix the extraneous semicolon at end of the CLOCKSOURCE_OF_DECLARE
definition.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Rob Herring <rob.herring@calxeda.com>
11 years agoirqchip: intc-irqpin: Add support for shared interrupt lines
Bastian Hecht [Wed, 27 Mar 2013 13:54:03 +0000 (14:54 +0100)]
irqchip: intc-irqpin: Add support for shared interrupt lines

On some hardware we don't have a 1-1 mapping from the external
interrupts coming from INTC to the GIC SPI pins. We can however
share lines to demux incoming IRQs on these SoCs.

This patch enables the intc_irqpin driver to detect requests for shared
interrupt lines and demuxes them properly by querying the INTC INTREQx0A
registers.

If you need multiple shared intc_irqpin device instances, be sure to mask
out all interrupts on the INTC that share the one line before you start
to register them. Else you run into IRQ floods that would be caused by
interrupts for which no handler has been set up yet when the first
intc_irqpin device is registered.

Signed-off-by: Bastian Hecht <hechtb+renesas@gmail.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agoLinux 3.9-rc4
Linus Torvalds [Sat, 23 Mar 2013 23:52:44 +0000 (16:52 -0700)]
Linux 3.9-rc4

11 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
Linus Torvalds [Sat, 23 Mar 2013 23:51:55 +0000 (16:51 -0700)]
Merge git://git./linux/kernel/git/nab/target-pending

Pull SCSI target fixes from Nicholas Bellinger:
 "These are mostly minor fixes this time around.  The iscsi-target CHAP
  big-endian bugfix and bump FD_MAX_SECTORS=2048 default patch to allow
  1MB sized I/Os for FILEIO backends on >= v3.5 code are both CC'ed to
  stable.

  Also, there is a persistent reservations regression that has recently
  been reported for >= v3.8.x code, that is currently being tracked down
  for v3.9."

* git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
  target/pscsi: Reject cross page boundary case in pscsi_map_sg
  target/file: Bump FD_MAX_SECTORS to 2048 to handle 1M sized I/Os
  tcm_vhost: Flush vhost_work in vhost_scsi_flush()
  tcm_vhost: Add missed lock in vhost_scsi_clear_endpoint()
  target: fix possible memory leak in core_tpg_register()
  target/iscsi: Fix mutual CHAP auth on big-endian arches
  target_core_sbc: use noop for SYNCHRONIZE_CACHE

11 years agoMerge tag 'md-3.9-fixes' of git://neil.brown.name/md
Linus Torvalds [Sat, 23 Mar 2013 22:49:49 +0000 (15:49 -0700)]
Merge tag 'md-3.9-fixes' of git://neil.brown.name/md

Pull md fixes from NeilBrown:
 "A few bugfixes for md

   - recent regressions in raid5
   - recent regressions in dmraid
   - a few instances of CONFIG_MULTICORE_RAID456 linger

  Several tagged for -stable"

* tag 'md-3.9-fixes' of git://neil.brown.name/md:
  md: remove CONFIG_MULTICORE_RAID456 entirely
  md/raid5: ensure sync and DISCARD don't happen at the same time.
  MD: Prevent sysfs operations on uninitialized kobjects
  MD RAID5: Avoid accessing gendisk or queue structs when not available
  md/raid5: schedule_construction should abort if nothing to do.

11 years agoMerge tag 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik...
Linus Torvalds [Sat, 23 Mar 2013 19:33:36 +0000 (12:33 -0700)]
Merge tag 'upstream-linus' of git://git./linux/kernel/git/jgarzik/libata-dev

Pull libata updates from Jeff Garzik:
 "Simple stuff.  See one-line summaries."

* tag 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
  pata_samsung_cf: use module_platform_driver_probe()
  [libata] Avoid specialized TLA's in ZPODD's Kconfig
  libata-acpi.c: fix copy and paste mistake in ata_acpi_register_power_resource
  sata_fsl: Remove redundant NULL check before kfree
  ahci: Add Device IDs for Intel Wellsburg PCH
  ata_piix: Add MODULE_PARM_DESC to prefer_ms_hyperv

11 years agoMerge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa...
Linus Torvalds [Sat, 23 Mar 2013 19:32:14 +0000 (12:32 -0700)]
Merge branch 'i2c/for-current' of git://git./linux/kernel/git/wsa/linux

Pull i2c fixes from Wolfram Sang:
 "One bugfix for the tegra driver.  Two updates regarding email
  addresses and MAINTAINERS which I like to have up-to-date so people
  can be reached immediately.  While we are here, there is on PCI_ID
  addition."

* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  MAINTAINERS: add maintainer entry for atmel i2c driver
  i2c: Fix my e-mail address in drivers and documentation
  i2c: iSMT: add Intel Avoton DeviceIDs
  i2c: tegra: check the clk_prepare_enable() return value

11 years agoMerge git://www.linux-watchdog.org/linux-watchdog
Linus Torvalds [Sat, 23 Mar 2013 19:30:39 +0000 (12:30 -0700)]
Merge git://www.linux-watchdog.org/linux-watchdog

Pull watchdog fixes from Wim Van Sebroeck:
 "Fix a boot issues and correct the AcpiMmioSel bitmask in the
  sp5100_tco watchdog device driver"

* git://www.linux-watchdog.org/linux-watchdog:
  watchdog: sp5100_tco: Set the AcpiMmioSel bitmask value to 1 instead of 2
  watchdog: sp5100_tco: Remove code that may cause a boot failure

11 years agoKMS: fix EDID detailed timing frame rate
Torsten Duwe [Sat, 23 Mar 2013 14:39:34 +0000 (15:39 +0100)]
KMS: fix EDID detailed timing frame rate

When KMS has parsed an EDID "detailed timing", it leaves the frame rate
zeroed.  Consecutive (debug-) output of that mode thus yields 0 for
vsync.  This simple fix also speeds up future invocations of
drm_mode_vrefresh().

While it is debatable whether this qualifies as a -stable fix I'd apply
it for consistency's sake; drm_helper_probe_single_connector_modes()
does the same thing already for all probed modes.

Cc: stable@vger.kernel.org
Signed-off-by: Torsten Duwe <duwe@lst.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agoKMS: fix EDID detailed timing vsync parsing
Torsten Duwe [Sat, 23 Mar 2013 14:38:22 +0000 (15:38 +0100)]
KMS: fix EDID detailed timing vsync parsing

EDID spreads some values across multiple bytes; bit-fiddling is needed
to retrieve these.  The current code to parse "detailed timings" has a
cut&paste error that results in a vsync offset of at most 15 lines
instead of 63.

See

   http://en.wikipedia.org/wiki/EDID

and in the "EDID Detailed Timing Descriptor" see bytes 10+11 show why
that needs to be a left shift.

Cc: stable@vger.kernel.org
Signed-off-by: Torsten Duwe <duwe@lst.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agoMerge git://git.infradead.org/users/willy/linux-nvme
Linus Torvalds [Fri, 22 Mar 2013 23:43:53 +0000 (16:43 -0700)]
Merge git://git.infradead.org/users/willy/linux-nvme

Pull NVMe driver update from Matthew Wilcox:
 "These patches have mostly been baking for a few months; sorry I didn't
  get them in during the merge window.  They're all bug fixes, except
  for the addition of the SMART log and the addition to MAINTAINERS."

* git://git.infradead.org/users/willy/linux-nvme:
  NVMe: Add namespaces with no LBA range feature
  MAINTAINERS: Add entry for the NVMe driver
  NVMe: Initialize iod nents to 0
  NVMe: Define SMART log
  NVMe: Add result to nvme_get_features
  NVMe: Set result from user admin command
  NVMe: End queued bio requests when freeing queue
  NVMe: Free cmdid on nvme_submit_bio error

11 years agoMerge branch 'akpm' (fixes from Andrew)
Linus Torvalds [Fri, 22 Mar 2013 23:41:44 +0000 (16:41 -0700)]
Merge branch 'akpm' (fixes from Andrew)

Merge misc fixes from Andrew Morton.

* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
  mqueue: sys_mq_open: do not call mnt_drop_write() if read-only
  mm/hotplug: only free wait_table if it's allocated by vmalloc
  dma-debug: update DMA debug API to better handle multiple mappings of a buffer
  dma-debug: fix locking bug in check_unmap()
  drivers/rtc/rtc-at91rm9200.c: use a variable for storing IMR
  drivers/video/ep93xx-fb.c: include <linux/io.h> for devm_ioremap()
  drivers/rtc/rtc-da9052.c: fix for rtc device registration
  mm: zone_end_pfn is too small
  poweroff: change orderly_poweroff() to use schedule_work()
  mm/hugetlb: fix total hugetlbfs pages count when using memory overcommit accouting
  printk: Provide a wake_up_klogd() off-case
  irq_work.h: fix warning when CONFIG_IRQ_WORK=n

11 years agomqueue: sys_mq_open: do not call mnt_drop_write() if read-only
Vladimir Davydov [Fri, 22 Mar 2013 22:04:51 +0000 (15:04 -0700)]
mqueue: sys_mq_open: do not call mnt_drop_write() if read-only

mnt_drop_write() must be called only if mnt_want_write() succeeded,
otherwise the mnt_writers counter will diverge.

mnt_writers counters are used to check if remounting FS as read-only is
OK, so after an extra mnt_drop_write() call, it would be impossible to
remount mqueue FS as read-only.  Besides, on umount a warning would be
printed like this one:

  =====================================
  [ BUG: bad unlock balance detected! ]
  3.9.0-rc3 #5 Not tainted
  -------------------------------------
  a.out/12486 is trying to release lock (sb_writers) at:
  mnt_drop_write+0x1f/0x30
  but there are no more locks to release!

Signed-off-by: Vladimir Davydov <vdavydov@parallels.com>
Cc: Doug Ledford <dledford@redhat.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agomm/hotplug: only free wait_table if it's allocated by vmalloc
Jianguo Wu [Fri, 22 Mar 2013 22:04:50 +0000 (15:04 -0700)]
mm/hotplug: only free wait_table if it's allocated by vmalloc

zone->wait_table may be allocated from bootmem, it can not be freed.

Signed-off-by: Jianguo Wu <wujianguo@huawei.com>
Reviewed-by: Tang Chen <tangchen@cn.fujitsu.com>
Cc: Tang Chen <tangchen@cn.fujitsu.com>
Cc: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agodma-debug: update DMA debug API to better handle multiple mappings of a buffer
Alexander Duyck [Fri, 22 Mar 2013 22:04:49 +0000 (15:04 -0700)]
dma-debug: update DMA debug API to better handle multiple mappings of a buffer

There were reports of the igb driver unmapping buffers without calling
dma_mapping_error.  On closer inspection issues were found in the DMA
debug API and how it handled multiple mappings of the same buffer.

The issue I found is the fact that the debug_dma_mapping_error would
only set the map_err_type to MAP_ERR_CHECKED in the case that the was
only one match for device and device address.  However in the case of
non-IOMMU, multiple addresses existed and as a result it was not setting
this field once a second mapping was instantiated.  I have resolved this
by changing the search so that it instead will now set MAP_ERR_CHECKED
on the first buffer that matches the device and DMA address that is
currently in the state MAP_ERR_NOT_CHECKED.

A secondary side effect of this patch is that in the case of multiple
buffers using the same address only the last mapping will have a valid
map_err_type.  The previous mappings will all end up with map_err_type
set to MAP_ERR_CHECKED because of the dma_mapping_error call in
debug_dma_map_page.  However this behavior may be preferable as it means
you will likely only see one real error per multi-mapped buffer, versus
the current behavior of multiple false errors mer multi-mapped buffer.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Cc: Joerg Roedel <joro@8bytes.org>
Reviewed-by: Shuah Khan <shuah.khan@hp.com>
Tested-by: Shuah Khan <shuah.khan@hp.com>
Cc: Jakub Kicinski <kubakici@wp.pl>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agodma-debug: fix locking bug in check_unmap()
Alexander Duyck [Fri, 22 Mar 2013 22:04:48 +0000 (15:04 -0700)]
dma-debug: fix locking bug in check_unmap()

In check_unmap() it is possible to get into a dead-locked state if
dma_mapping_error is called.  The problem is that the bucket is locked in
check_unmap, and locked again by debug_dma_mapping_error which is called
by dma_mapping_error.  To resolve that we must release the lock on the
bucket before making the call to dma_mapping_error.

[akpm@linux-foundation.org: restore 80-col trickery to be consistent with the rest of the file]
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Cc: Joerg Roedel <joro@8bytes.org>
Reviewed-by: Shuah Khan <shuah.khan@hp.com>
Tested-by: Shuah Khan <shuah.khan@hp.com>
Cc: Jakub Kicinski <kubakici@wp.pl>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agodrivers/rtc/rtc-at91rm9200.c: use a variable for storing IMR
Nicolas Ferre [Fri, 22 Mar 2013 22:04:47 +0000 (15:04 -0700)]
drivers/rtc/rtc-at91rm9200.c: use a variable for storing IMR

On some revisions of AT91 SoCs, the RTC IMR register is not working.
Instead of elaborating a workaround for that specific SoC or IP version,
we simply use a software variable to store the Interrupt Mask Register
and modify it for each enabling/disabling of an interrupt.  The overhead
of this is negligible anyway.

The interrupt mask register (IMR) for the RTC is broken on the AT91SAM9x5
sub-family of SoCs (good overview of the members here:
http://www.eewiki.net/display/linuxonarm/AT91SAM9x5 ).  The "user visible
effect" is the RTC doesn't work.

That sub-family is less than two years old and only has devicetree (DT)
support and came online circa lk 3.7 .  The dust is yet to settle on the
DT stuff at least for AT91 SoCs (translation: lots of stuff is still
broken, so much that it is hard to know where to start).

The fix in the patch is pretty simple: just shadow the silicon IMR
register with a variable in the driver.  Some older SoCs (pre-DT) use the
the rtc-at91rm9200 driver (e.g.  obviously the AT91RM9200) and they should
not be impacted by the change.  There shouldn't be a large volume of
interrupts associated with a RTC.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Reported-by: Douglas Gilbert <dgilbert@interlog.com>
Cc: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: Ludovic Desroches <ludovic.desroches@atmel.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agodrivers/video/ep93xx-fb.c: include <linux/io.h> for devm_ioremap()
H Hartley Sweeten [Fri, 22 Mar 2013 22:04:45 +0000 (15:04 -0700)]
drivers/video/ep93xx-fb.c: include <linux/io.h> for devm_ioremap()

Commit be8678149701 ("drivers/video/ep93xx-fb.c: use devm_ functions")
introduced a build error:

  drivers/video/ep93xx-fb.c: In function 'ep93xxfb_probe':
  drivers/video/ep93xx-fb.c:532: error: implicit declaration of function 'devm_ioremap'
  drivers/video/ep93xx-fb.c:533: warning: assignment makes pointer from integer without a cast

Include <linux/io.h> to pickup the declaration of 'devm_ioremap'.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Acked-by: Ryan Mallon <rmallon@gmail.com>
Cc: Damien Cassou <damien.cassou@lifl.fr>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agodrivers/rtc/rtc-da9052.c: fix for rtc device registration
Ashish Jangam [Fri, 22 Mar 2013 22:04:44 +0000 (15:04 -0700)]
drivers/rtc/rtc-da9052.c: fix for rtc device registration

Add support for the virtual irq since now MFD only handles virtual irq
Without this patch rtc device will fail in registration.

(akpm: Ashish has a different version whcih will be needed for 3.8.x and
earlier kernels)

Signed-off-by: Ashish <ashish.jangam@kpitcummins.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agomm: zone_end_pfn is too small
Russ Anderson [Fri, 22 Mar 2013 22:04:43 +0000 (15:04 -0700)]
mm: zone_end_pfn is too small

Booting with 32 TBytes memory hits BUG at mm/page_alloc.c:552! (output
below).

The key hint is "page 4294967296 outside zone".
4294967296 = 0x100000000 (bit 32 is set).

The problem is in include/linux/mmzone.h:

  530 static inline unsigned zone_end_pfn(const struct zone *zone)
  531 {
  532         return zone->zone_start_pfn + zone->spanned_pages;
  533 }

zone_end_pfn is "unsigned" (32 bits).  Changing it to "unsigned long"
(64 bits) fixes the problem.

zone_end_pfn() was added recently in commit 108bcc96ef70 ("mm: add & use
zone_end_pfn() and zone_spans_pfn()")

Output from the failure.

  No AGP bridge found
  page 4294967296 outside zone [ 4294967296 - 4327469056 ]
  ------------[ cut here ]------------
  kernel BUG at mm/page_alloc.c:552!
  invalid opcode: 0000 [#1] SMP
  Modules linked in:
  CPU 0
  Pid: 0, comm: swapper Not tainted 3.9.0-rc2.dtp+ #10
  RIP: free_one_page+0x382/0x430
  Process swapper (pid: 0, threadinfo ffffffff81942000, task ffffffff81955420)
  Call Trace:
    __free_pages_ok+0x96/0xb0
    __free_pages+0x25/0x50
    __free_pages_bootmem+0x8a/0x8c
    __free_memory_core+0xea/0x131
    free_low_memory_core_early+0x4a/0x98
    free_all_bootmem+0x45/0x47
    mem_init+0x7b/0x14c
    start_kernel+0x216/0x433
    x86_64_start_reservations+0x2a/0x2c
    x86_64_start_kernel+0x144/0x153
  Code: 89 f1 ba 01 00 00 00 31 f6 d3 e2 4c 89 ef e8 66 a4 01 00 e9 2c fe ff ff 0f 0b eb fe 0f 0b 66 66 2e 0f 1f 84 00 00 00 00 00 eb f3 <0f> 0b eb fe 0f 0b 0f 1f 84 00 00 00 00 00 eb f6 0f 0b eb fe 49

Signed-off-by: Russ Anderson <rja@sgi.com>
Reported-by: George Beshers <gbeshers@sgi.com>
Acked-by: Hedi Berriche <hedi@sgi.com>
Cc: Cody P Schafer <cody@linux.vnet.ibm.com>
Cc: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agopoweroff: change orderly_poweroff() to use schedule_work()
Oleg Nesterov [Fri, 22 Mar 2013 22:04:41 +0000 (15:04 -0700)]
poweroff: change orderly_poweroff() to use schedule_work()

David said:

    Commit 6c0c0d4d1080 ("poweroff: fix bug in orderly_poweroff()")
    apparently fixes one bug in orderly_poweroff(), but introduces
    another.  The comments on orderly_poweroff() claim it can be called
    from any context - and indeed we call it from interrupt context in
    arch/powerpc/platforms/pseries/ras.c for example.  But since that
    commit this is no longer safe, since call_usermodehelper_fns() is not
    safe in interrupt context without the UMH_NO_WAIT option.

orderly_poweroff() can be used from any context but UMH_WAIT_EXEC is
sleepable.  Move the "force" logic into __orderly_poweroff() and change
orderly_poweroff() to use the global poweroff_work which simply calls
__orderly_poweroff().

While at it, remove the unneeded "int argc" and change argv_split() to
use GFP_KERNEL.

We use the global "bool poweroff_force" to pass the argument, this can
obviously affect the previous request if it is pending/running.  So we
only allow the "false => true" transition assuming that the pending
"true" should succeed anyway.  If schedule_work() fails after that we
know that work->func() was not called yet, it must see the new value.

This means that orderly_poweroff() becomes async even if we do not run
the command and always succeeds, schedule_work() can only fail if the
work is already pending.  We can export __orderly_poweroff() and change
the non-atomic callers which want the old semantics.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Reported-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Reported-by: David Gibson <david@gibson.dropbear.id.au>
Cc: Lucas De Marchi <lucas.demarchi@profusion.mobi>
Cc: Feng Hong <hongfeng@marvell.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Serge Hallyn <serge.hallyn@canonical.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agomm/hugetlb: fix total hugetlbfs pages count when using memory overcommit accouting
Wanpeng Li [Fri, 22 Mar 2013 22:04:40 +0000 (15:04 -0700)]
mm/hugetlb: fix total hugetlbfs pages count when using memory overcommit accouting

hugetlb_total_pages is used for overcommit calculations but the current
implementation considers only the default hugetlb page size (which is
either the first defined hugepage size or the one specified by
default_hugepagesz kernel boot parameter).

If the system is configured for more than one hugepage size, which is
possible since commit a137e1cc6d6e ("hugetlbfs: per mount huge page
sizes") then the overcommit estimation done by __vm_enough_memory()
(resp.  shown by meminfo_proc_show) is not precise - there is an
impression of more available/allowed memory.  This can lead to an
unexpected ENOMEM/EFAULT resp.  SIGSEGV when memory is accounted.

Testcase:
  boot: hugepagesz=1G hugepages=1
  the default overcommit ratio is 50
  before patch:

    egrep 'CommitLimit' /proc/meminfo
    CommitLimit:     55434168 kB

  after patch:

    egrep 'CommitLimit' /proc/meminfo
    CommitLimit:     54909880 kB

[akpm@linux-foundation.org: coding-style tweak]
Signed-off-by: Wanpeng Li <liwanp@linux.vnet.ibm.com>
Acked-by: Michal Hocko <mhocko@suse.cz>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Cc: Hillf Danton <dhillf@gmail.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: <stable@vger.kernel.org> [3.0+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agoprintk: Provide a wake_up_klogd() off-case
Frederic Weisbecker [Fri, 22 Mar 2013 22:04:39 +0000 (15:04 -0700)]
printk: Provide a wake_up_klogd() off-case

wake_up_klogd() is useless when CONFIG_PRINTK=n because neither printk()
nor printk_sched() are in use and there are actually no waiter on
log_wait waitqueue.  It should be a stub in this case for users like
bust_spinlocks().

Otherwise this results in this warning when CONFIG_PRINTK=n and
CONFIG_IRQ_WORK=n:

kernel/built-in.o In function `wake_up_klogd':
(.text.wake_up_klogd+0xb4): undefined reference to `irq_work_queue'

To fix this, provide an off-case for wake_up_klogd() when
CONFIG_PRINTK=n.

There is much more from console_unlock() and other console related code
in printk.c that should be moved under CONFIG_PRINTK.  But for now,
focus on a minimal fix as we passed the merged window already.

[akpm@linux-foundation.org: include printk.h in bust_spinlocks.c]
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Reported-by: James Hogan <james.hogan@imgtec.com>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agoirq_work.h: fix warning when CONFIG_IRQ_WORK=n
James Hogan [Fri, 22 Mar 2013 22:04:37 +0000 (15:04 -0700)]
irq_work.h: fix warning when CONFIG_IRQ_WORK=n

A randconfig caught repeated compiler warnings when CONFIG_IRQ_WORK=n
due to the definition of a non-inline static function in
<linux/irq_work.h>:

  include/linux/irq_work.h +40 : warning: 'irq_work_needs_cpu' defined but not used

Make it inline to supress the warning.  This is caused commit
00b42959106a ("irq_work: Don't stop the tick with pending works") merged
in v3.9-rc1.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agowatchdog: sp5100_tco: Set the AcpiMmioSel bitmask value to 1 instead of 2
Takahisa Tanaka [Sun, 3 Mar 2013 05:48:00 +0000 (14:48 +0900)]
watchdog: sp5100_tco: Set the AcpiMmioSel bitmask value to 1 instead of 2

The AcpiMmioSel bit is bit 1 in the AcpiMmioEn register, but the current
sp5100_tco driver is using bit 2.

See 2.3.3 Power Management (PM) Registers page 150 of the
AMD SB800-Series Southbridges Register Reference Guide [1].

        AcpiMmioEn - RW – 8/16/32 bits - [PM_Reg: 24h]
        Field Name        Bits  Default  Description
        AcpiMMioDecodeEn  0     0b       Set to 1 to enable AcpiMMio space.
        AcpiMMIoSel       1     0b       Set AcpiMMio registers to be memory-mapped or IO-mapped space.
                                         0: Memory-mapped space
                                         1: I/O-mapped space

The sp5100_tco driver expects zero as a value of AcpiMmioSel (bit 1).

Fortunately, no problems were caused by this typo, because the default
value of the undocumented misused bit 2 seems to be zero.

However, the sp5100_tco driver should use the correct bitmask value.

[1] http://support.amd.com/us/Embedded_TechDocs/45482.pdf

Signed-off-by: Takahisa Tanaka <mc74hc00@gmail.com>
Signed-off-by: Paul Menzel <paulepanter@users.sourceforge.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Cc: stable <stable@vger.kernel.org>
11 years agowatchdog: sp5100_tco: Remove code that may cause a boot failure
Takahisa Tanaka [Sun, 3 Mar 2013 05:52:07 +0000 (14:52 +0900)]
watchdog: sp5100_tco: Remove code that may cause a boot failure

A problem was found on PC's with the SB700 chipset: The PC fails to
load BIOS after running the 3.8.x kernel until the power is completely
cut off. It occurs in all 3.8.x versions and the mainline version as of
2/4. The issue does not occur with the 3.7.x builds.

There are two methods for accessing the watchdog registers.

 1. Re-programming a resource address obtained by allocate_resource()
to chipset.
 2. Use the direct memory-mapped IO access.

The method 1 can be used by all the chipsets (SP5100, SB7x0, SB8x0 or
later). However, experience shows that only PC with the SB8x0 (or
later) chipsets can use the method 2.

This patch removes the method 1, because the critical problem was found.
That's why the watchdog timer was able to be used on SP5100 and SB7x0
chipsets until now.

Link: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1116835
Link: https://lkml.org/lkml/2013/2/14/271
Signed-off-by: Takahisa Tanaka <mc74hc00@gmail.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Cc: stable <stable@vger.kernel.org>
11 years agoMerge git://git.kernel.org/pub/scm/virt/kvm/kvm
Linus Torvalds [Fri, 22 Mar 2013 19:57:30 +0000 (12:57 -0700)]
Merge git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM fix from Marcelo Tosatti:
 "Fix compilation on PPC with !CONFIG_KVM"

* git://git.kernel.org/pub/scm/virt/kvm/kvm:
  Revert "KVM: allow host header to be included even for !CONFIG_KVM"

11 years agoMerge tag 'usb-3.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Linus Torvalds [Fri, 22 Mar 2013 19:45:55 +0000 (12:45 -0700)]
Merge tag 'usb-3.9-rc3' of git://git./linux/kernel/git/gregkh/usb

Pull USB fixes from Greg Kroah-Hartman:
 "Here are a number of USB fixes that resolve issues that have been
  reported against 3.9-rc3."

* tag 'usb-3.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (37 commits)
  USB: ti_usb_3410_5052: fix use-after-free in TIOCMIWAIT
  USB: ssu100: fix use-after-free in TIOCMIWAIT
  USB: spcp8x5: fix use-after-free in TIOCMIWAIT
  USB: quatech2: fix use-after-free in TIOCMIWAIT
  USB: pl2303: fix use-after-free in TIOCMIWAIT
  USB: oti6858: fix use-after-free in TIOCMIWAIT
  USB: mos7840: fix use-after-free in TIOCMIWAIT
  USB: mos7840: fix broken TIOCMIWAIT
  USB: mct_u232: fix use-after-free in TIOCMIWAIT
  USB: io_ti: fix use-after-free in TIOCMIWAIT
  USB: io_edgeport: fix use-after-free in TIOCMIWAIT
  USB: ftdi_sio: fix use-after-free in TIOCMIWAIT
  USB: f81232: fix use-after-free in TIOCMIWAIT
  USB: cypress_m8: fix use-after-free in TIOCMIWAIT
  USB: ch341: fix use-after-free in TIOCMIWAIT
  USB: ark3116: fix use-after-free in TIOCMIWAIT
  USB: serial: add modem-status-change wait queue
  USB: serial: fix interface refcounting
  USB: io_ti: fix get_icount for two port adapters
  USB: garmin_gps: fix memory leak on disconnect
  ...

11 years agoMerge tag 'sound-3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Linus Torvalds [Fri, 22 Mar 2013 19:45:08 +0000 (12:45 -0700)]
Merge tag 'sound-3.9' of git://git./linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "Mostly HD-audio and USB-audio regression fixes:
   - Oops fix at unloading of snd-hda-codec-conexant module
   - A few trivial regression fixes for Cirrus and Conexant HD-audio
     codecs
   - Relax the USB-audio descriptor parse errors as non-fatal
   - Fix locking of HD-audio CA0132 DSP loader
   - Fix the generic HD-audio parser for VIA codecs"

* tag 'sound-3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda - Fix DAC assignment for independent HP
  ALSA: hda - Fix abuse of snd_hda_lock_devices() for DSP loader
  ALSA: hda - Fix typo in checking IEC958 emphasis bit
  ALSA: snd-usb: mixer: ignore -EINVAL in snd_usb_mixer_controls()
  ALSA: snd-usb: mixer: propagate errors up the call chain
  ALSA: usb: Parse UAC2 extension unit like for UAC1
  ALSA: hda - Fix yet missing GPIO/EAPD setup in cirrus driver
  ALSA: hda/cirrus - Fix the digital beep registration
  ALSA: hda - Fix missing beep detach in patch_conexant.c
  ALSA: documentation: Fix typo in Documentation/sound

11 years agoMerge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp
Linus Torvalds [Fri, 22 Mar 2013 19:44:22 +0000 (12:44 -0700)]
Merge tag 'for_linus' of git://git./linux/kernel/git/bp/bp

Pull EDAC fixes from Borislav Petkov:
 "A fix from Mauro to correct csrow size accounting in sysfs and a
  sparse fix from Stephen Hemminger."

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp:
  EDAC: Merge mci.mem_is_per_rank with mci.csbased
  amd64_edac: Correct DIMM sizes
  EDAC: Make sysfs functions static

11 years agoNVMe: Add namespaces with no LBA range feature
Keith Busch [Thu, 31 Jan 2013 21:40:38 +0000 (14:40 -0700)]
NVMe: Add namespaces with no LBA range feature

The LBA Range Type feature is optional in the NVMe specification,
so we should continue with adding namespaces for controllers that do
not implement this feature.

Signed-off-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
11 years agovfs,proc: guarantee unique inodes in /proc
Linus Torvalds [Fri, 22 Mar 2013 18:44:04 +0000 (11:44 -0700)]
vfs,proc: guarantee unique inodes in /proc

Dave Jones found another /proc issue with his Trinity tool: thanks to
the namespace model, we can have multiple /proc dentries that point to
the same inode, aliasing directories in /proc/<pid>/net/ for example.

This ends up being a total disaster, because it acts like hardlinked
directories, and causes locking problems.  We rely on the topological
sort of the inodes pointed to by dentries, and if we have aliased
directories, that odering becomes unreliable.

In short: don't do this.  Multiple dentries with the same (directory)
inode is just a bad idea, and the namespace code should never have
exposed things this way.  But we're kind of stuck with it.

This solves things by just always allocating a new inode during /proc
dentry lookup, instead of using "iget_locked()" to look up existing
inodes by superblock and number.  That actually simplies the code a bit,
at the cost of potentially doing more inode [de]allocations.

That said, the inode lookup wasn't free either (and did a lot of locking
of inodes), so it is probably not that noticeable.  We could easily keep
the old lookup model for non-directory entries, but rather than try to
be excessively clever this just implements the minimal and simplest
workaround for the problem.

Reported-and-tested-by: Dave Jones <davej@redhat.com>
Analyzed-by: Al Viro <viro@zeniv.linux.org.uk>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agoMerge tag 'renesas-clocksource-for-v3.10' of git://git.kernel.org/pub/scm/linux/kerne...
Arnd Bergmann [Fri, 22 Mar 2013 12:38:06 +0000 (13:38 +0100)]
Merge tag 'renesas-clocksource-for-v3.10' of git://git./linux/kernel/git/horms/renesas into next/drivers

From Simon Horman <horms@verge.net.au>:

Renesas ARM and SH based SoC clocksource update for v3.10

I has been agreed by Paul Mundt and myself, that it would be best to take
these changes through the renesas tree and in turn the arm-soc tree.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* tag 'renesas-clocksource-for-v3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  clocksource: sh_mtu2: Set initcall level to subsys
  clocksource: em_sti: Set initcall level to subsys
  clocksource: sh_tmu: Set initcall level to subsys
  clocksource: sh_cmt: Set initcall level to subsys
  clocksource: sh_cmt: Add CMT register layout comment
  clocksource: sh_cmt: Add control register callbacks
  clocksource: sh_cmt: CMCNT and CMCOR register access update
  clocksource: sh_cmt: CMSTR and CMCSR register access update
  clocksource: sh_cmt: Consolidate platform_set_drvdata() call
  clocksource: sh_cmt: Introduce per-register functions
  clocksource: sh_cmt: Initialize 'max_match_value' and 'lock' in sh_cmt_setup()
  clocksource: sh_cmt: Take care of clk_put() when setup_irq() fails

11 years agoRevert "KVM: allow host header to be included even for !CONFIG_KVM"
Marcelo Tosatti [Fri, 22 Mar 2013 11:08:06 +0000 (08:08 -0300)]
Revert "KVM: allow host header to be included even for !CONFIG_KVM"

This reverts commit f445f11eb2cc265dd47da5b2e864df46cd6e5a82 as
it breaks PPC with CONFIG_KVM=n.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
11 years agoMAINTAINERS: add maintainer entry for atmel i2c driver
Ludovic Desroches [Fri, 15 Mar 2013 05:32:57 +0000 (05:32 +0000)]
MAINTAINERS: add maintainer entry for atmel i2c driver

Create an entry for atmel i2c driver: i2c-at91.c

Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
11 years agoi2c: Fix my e-mail address in drivers and documentation
Guenter Roeck [Tue, 26 Feb 2013 06:03:52 +0000 (06:03 +0000)]
i2c: Fix my e-mail address in drivers and documentation

My old e-mail address is no longer working.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
11 years agoi2c: iSMT: add Intel Avoton DeviceIDs
Seth Heasley [Thu, 21 Feb 2013 12:30:43 +0000 (12:30 +0000)]
i2c: iSMT: add Intel Avoton DeviceIDs

This patch adds the iSMT SMBus Controller DeviceIDs for the Intel Avoton SOC.

Signed-off-by: Seth Heasley <seth.heasley@intel.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
11 years agoi2c: tegra: check the clk_prepare_enable() return value
Laxman Dewangan [Fri, 15 Mar 2013 05:34:08 +0000 (05:34 +0000)]
i2c: tegra: check the clk_prepare_enable() return value

NVIDIA's Tegra SoC allows read/write of controller register only
if controller clock is enabled. System hangs if read/write happens
to registers without enabling clock.

clk_prepare_enable() can be fail due to unknown reason and hence
adding check for return value of this function. If this function
success then only access register otherwise return to caller with
error.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Cc: stable@kernel.org
11 years agoMerge branch 'for-next' of git://git.samba.org/sfrench/cifs-2.6
Linus Torvalds [Fri, 22 Mar 2013 00:59:22 +0000 (17:59 -0700)]
Merge branch 'for-next' of git://git.samba.org/sfrench/cifs-2.6

Pull CIFS fixes from Steve French:
 "Three small CIFS Fixes (the most important of the three fixes a recent
  problem authenticating to Windows 8 using cifs rather than SMB2)"

* 'for-next' of git://git.samba.org/sfrench/cifs-2.6:
  cifs: ignore everything in SPNEGO blob after mechTypes
  cifs: delay super block destruction until all cifsFileInfo objects are gone
  cifs: map NT_STATUS_SHARING_VIOLATION to EBUSY instead of ETXTBSY

11 years agoMerge tag 'ext4_for_linue' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso...
Linus Torvalds [Fri, 22 Mar 2013 00:56:10 +0000 (17:56 -0700)]
Merge tag 'ext4_for_linue' of git://git./linux/kernel/git/tytso/ext4

Pull ext4 fixes from Ted Ts'o:
 "Fix a number of regression and other bugs in ext4, most of which were
  relatively obscure cornercases or races that were found using
  regression tests."

* tag 'ext4_for_linue' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (21 commits)
  ext4: fix data=journal fast mount/umount hang
  ext4: fix ext4_evict_inode() racing against workqueue processing code
  ext4: fix memory leakage in mext_check_coverage
  ext4: use s_extent_max_zeroout_kb value as number of kb
  ext4: use atomic64_t for the per-flexbg free_clusters count
  jbd2: fix use after free in jbd2_journal_dirty_metadata()
  ext4: reserve metadata block for every delayed write
  ext4: update reserved space after the 'correction'
  ext4: do not use yield()
  ext4: remove unused variable in ext4_free_blocks()
  ext4: fix WARN_ON from ext4_releasepage()
  ext4: fix the wrong number of the allocated blocks in ext4_split_extent()
  ext4: update extent status tree after an extent is zeroed out
  ext4: fix wrong m_len value after unwritten extent conversion
  ext4: add self-testing infrastructure to do a sanity check
  ext4: avoid a potential overflow in ext4_es_can_be_merged()
  ext4: invalidate extent status tree during extent migration
  ext4: remove unnecessary wait for extent conversion in ext4_fallocate()
  ext4: add warning to ext4_convert_unwritten_extents_endio
  ext4: disable merging of uninitialized extents
  ...

11 years agoUSB: ti_usb_3410_5052: fix use-after-free in TIOCMIWAIT
Johan Hovold [Tue, 19 Mar 2013 08:21:26 +0000 (09:21 +0100)]
USB: ti_usb_3410_5052: fix use-after-free in TIOCMIWAIT

Use the port wait queue and make sure to check the serial disconnected
flag before accessing private port data after waking up.

This is is needed as the private port data (including the wait queue
itself) can be gone when waking up after a disconnect.

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: ssu100: fix use-after-free in TIOCMIWAIT
Johan Hovold [Tue, 19 Mar 2013 08:21:25 +0000 (09:21 +0100)]
USB: ssu100: fix use-after-free in TIOCMIWAIT

Use the port wait queue and make sure to check the serial disconnected
flag before accessing private port data after waking up.

This is is needed as the private port data (including the wait queue
itself) can be gone when waking up after a disconnect.

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: spcp8x5: fix use-after-free in TIOCMIWAIT
Johan Hovold [Tue, 19 Mar 2013 08:21:24 +0000 (09:21 +0100)]
USB: spcp8x5: fix use-after-free in TIOCMIWAIT

Use the port wait queue and make sure to check the serial disconnected
flag before accessing private port data after waking up.

This is is needed as the private port data (including the wait queue
itself) can be gone when waking up after a disconnect.

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: quatech2: fix use-after-free in TIOCMIWAIT
Johan Hovold [Tue, 19 Mar 2013 08:21:23 +0000 (09:21 +0100)]
USB: quatech2: fix use-after-free in TIOCMIWAIT

Use the port wait queue and make sure to check the serial disconnected
flag before accessing private port data after waking up.

This is is needed as the private port data (including the wait queue
itself) can be gone when waking up after a disconnect.

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: pl2303: fix use-after-free in TIOCMIWAIT
Johan Hovold [Tue, 19 Mar 2013 08:21:22 +0000 (09:21 +0100)]
USB: pl2303: fix use-after-free in TIOCMIWAIT

Use the port wait queue and make sure to check the serial disconnected
flag before accessing private port data after waking up.

This is is needed as the private port data (including the wait queue
itself) can be gone when waking up after a disconnect.

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: oti6858: fix use-after-free in TIOCMIWAIT
Johan Hovold [Tue, 19 Mar 2013 08:21:21 +0000 (09:21 +0100)]
USB: oti6858: fix use-after-free in TIOCMIWAIT

Use the port wait queue and make sure to check the serial disconnected
flag before accessing private port data after waking up.

This is is needed as the private port data (including the wait queue
itself) can be gone when waking up after a disconnect.

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: mos7840: fix use-after-free in TIOCMIWAIT
Johan Hovold [Tue, 19 Mar 2013 08:21:20 +0000 (09:21 +0100)]
USB: mos7840: fix use-after-free in TIOCMIWAIT

Use the port wait queue and make sure to check the serial disconnected
flag before accessing private port data after waking up.

This is is needed as the private port data (including the wait queue
itself) can be gone when waking up after a disconnect.

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: mos7840: fix broken TIOCMIWAIT
Johan Hovold [Tue, 19 Mar 2013 08:21:19 +0000 (09:21 +0100)]
USB: mos7840: fix broken TIOCMIWAIT

Make sure waiting processes are woken on modem-status changes.

Currently processes are only woken on termios changes regardless of
whether the modem status has changed.

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: mct_u232: fix use-after-free in TIOCMIWAIT
Johan Hovold [Tue, 19 Mar 2013 08:21:18 +0000 (09:21 +0100)]
USB: mct_u232: fix use-after-free in TIOCMIWAIT

Use the port wait queue and make sure to check the serial disconnected
flag before accessing private port data after waking up.

This is is needed as the private port data (including the wait queue
itself) can be gone when waking up after a disconnect.

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: io_ti: fix use-after-free in TIOCMIWAIT
Johan Hovold [Tue, 19 Mar 2013 08:21:17 +0000 (09:21 +0100)]
USB: io_ti: fix use-after-free in TIOCMIWAIT

Use the port wait queue and make sure to check the serial disconnected
flag before accessing private port data after waking up.

This is is needed as the private port data (including the wait queue
itself) can be gone when waking up after a disconnect.

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: io_edgeport: fix use-after-free in TIOCMIWAIT
Johan Hovold [Tue, 19 Mar 2013 08:21:16 +0000 (09:21 +0100)]
USB: io_edgeport: fix use-after-free in TIOCMIWAIT

Use the port wait queue and make sure to check the serial disconnected
flag before accessing private port data after waking up.

This is is needed as the private port data (including the wait queue
itself) can be gone when waking up after a disconnect.

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: ftdi_sio: fix use-after-free in TIOCMIWAIT
Johan Hovold [Tue, 19 Mar 2013 08:21:15 +0000 (09:21 +0100)]
USB: ftdi_sio: fix use-after-free in TIOCMIWAIT

Use the port wait queue and make sure to check the serial disconnected
flag before accessing private port data after waking up.

This is is needed as the private port data (including the wait queue
itself) can be gone when waking up after a disconnect.

When switching to tty ports, some lifetime assumptions were changed.
Specifically, close can now be called before the final tty reference is
dropped as part of hangup at device disconnect. Even with the ftdi
private-data refcounting this means that the port private data can be
freed while a process is sleeping on modem-status changes and thus
cannot be relied on to detect disconnects when woken up.

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: f81232: fix use-after-free in TIOCMIWAIT
Johan Hovold [Tue, 19 Mar 2013 08:21:14 +0000 (09:21 +0100)]
USB: f81232: fix use-after-free in TIOCMIWAIT

Use the port wait queue and make sure to check the serial disconnected
flag before accessing private port data after waking up.

This is is needed as the private port data (including the wait queue
itself) can be gone when waking up after a disconnect.

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: cypress_m8: fix use-after-free in TIOCMIWAIT
Johan Hovold [Tue, 19 Mar 2013 08:21:13 +0000 (09:21 +0100)]
USB: cypress_m8: fix use-after-free in TIOCMIWAIT

Use the port wait queue and make sure to check the serial disconnected
flag before accessing private port data after waking up.

This is is needed as the private port data (including the wait queue
itself) can be gone when waking up after a disconnect.

Also remove bogus test for private data pointer being NULL as it is
never assigned in the loop.

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: ch341: fix use-after-free in TIOCMIWAIT
Johan Hovold [Tue, 19 Mar 2013 08:21:12 +0000 (09:21 +0100)]
USB: ch341: fix use-after-free in TIOCMIWAIT

Use the port wait queue and make sure to check the serial disconnected
flag before accessing private port data after waking up.

This is is needed as the private port data (including the wait queue
itself) can be gone when waking up after a disconnect.

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: ark3116: fix use-after-free in TIOCMIWAIT
Johan Hovold [Tue, 19 Mar 2013 08:21:11 +0000 (09:21 +0100)]
USB: ark3116: fix use-after-free in TIOCMIWAIT

Use the port wait queue and make sure to check the serial disconnected
flag before accessing private port data after waking up.

This is is needed as the private port data (including the wait queue
itself) can be gone when waking up after a disconnect.

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: serial: add modem-status-change wait queue
Johan Hovold [Tue, 19 Mar 2013 08:21:10 +0000 (09:21 +0100)]
USB: serial: add modem-status-change wait queue

Add modem-status-change wait queue to struct usb_serial_port that
subdrivers can use to implement TIOCMIWAIT.

Currently subdrivers use a private wait queue which may have been
released when waking up after device disconnected.

Note that we're adding a new wait queue rather than reusing the tty-port
one as we do not want to get woken up at hangup (yet).

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: serial: fix interface refcounting
Johan Hovold [Tue, 19 Mar 2013 08:21:09 +0000 (09:21 +0100)]
USB: serial: fix interface refcounting

Make sure the interface is not released before our serial device.

Note that drivers are still not allowed to access the interface in
any way that may interfere with another driver that may have gotten
bound to the same interface after disconnect returns.

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: io_ti: fix get_icount for two port adapters
Johan Hovold [Tue, 19 Mar 2013 08:21:08 +0000 (09:21 +0100)]
USB: io_ti: fix get_icount for two port adapters

Add missing get_icount field to two-port driver.

The two-port driver was not updated when switching to the new icount
interface in commit 0bca1b913aff ("tty: Convert the USB drivers to the
new icount interface").

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: garmin_gps: fix memory leak on disconnect
Johan Hovold [Tue, 19 Mar 2013 08:21:07 +0000 (09:21 +0100)]
USB: garmin_gps: fix memory leak on disconnect

Remove bogus disconnect test introduced by 95bef012e ("USB: more serial
drivers writing after disconnect") which prevented queued data from
being freed on disconnect.

The possible IO it was supposed to prevent is long gone.

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: cdc-acm: fix device unregistration
Johan Hovold [Tue, 19 Mar 2013 08:21:06 +0000 (09:21 +0100)]
USB: cdc-acm: fix device unregistration

Unregister tty device in disconnect as is required by the USB stack.

By deferring unregistration to when the last tty reference is dropped,
the parent interface device can get unregistered before the child
resulting in broken hotplug events being generated when the tty is
finally closed:

KERNEL[2290.798128] remove   /devices/pci0000:00/0000:00:1d.7/usb2/2-1/2-1:3.1 (usb)
KERNEL[2290.804589] remove   /devices/pci0000:00/0000:00:1d.7/usb2/2-1 (usb)
KERNEL[2294.554799] remove   /2-1:3.1/tty/ttyACM0 (tty)

The driver must deal with tty callbacks after disconnect by checking the
disconnected flag. Specifically, further opens must be prevented and
this is already implemented.

Cc: stable <stable@vger.kernel.org>
Cc: Oliver Neukum <oneukum@suse.de>
Acked-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agousb: cdc-acm: fix error handling in acm_probe()
Alexey Khoroshilov [Fri, 15 Mar 2013 21:30:32 +0000 (01:30 +0400)]
usb: cdc-acm: fix error handling in acm_probe()

acm_probe() ignores errors in tty_port_register_device()
and leaves intfdata pointing to freed memory on alloc_fail7
error path. The patch fixes the both issues.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Acked-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agocifs: ignore everything in SPNEGO blob after mechTypes
Jeff Layton [Mon, 11 Mar 2013 13:52:19 +0000 (09:52 -0400)]
cifs: ignore everything in SPNEGO blob after mechTypes

We've had several reports of people attempting to mount Windows 8 shares
and getting failures with a return code of -EINVAL. The default sec=
mode changed recently to sec=ntlmssp. With that, we expect and parse a
SPNEGO blob from the server in the NEGOTIATE reply.

The current decode_negTokenInit function first parses all of the
mechTypes and then tries to parse the rest of the negTokenInit reply.
The parser however currently expects a mechListMIC or nothing to follow the
mechTypes, but Windows 8 puts a mechToken field there instead to carry
some info for the new NegoEx stuff.

In practice, we don't do anything with the fields after the mechTypes
anyway so I don't see any real benefit in continuing to parse them.
This patch just has the kernel ignore the fields after the mechTypes.
We'll probably need to reinstate some of this if we ever want to support
NegoEx.

Reported-by: Jason Burgess <jason@jacknife2.dns2go.com>
Reported-by: Yan Li <elliot.li.tech@gmail.com>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Steve French <sfrench@us.ibm.com>
11 years agoMerge tag 'renesas-intc-external-irq-for-v3.10' of git://git.kernel.org/pub/scm/linux...
Arnd Bergmann [Thu, 21 Mar 2013 17:02:40 +0000 (18:02 +0100)]
Merge tag 'renesas-intc-external-irq-for-v3.10' of git://git./linux/kernel/git/horms/renesas into next/drivers

From Simon Horman <horms+renesas@verge.net.au>:

Renesas INTC External IRQ pin driver

This provides two new INTC drivers for use with Renesas ARM-based SoCs and
makes use of them on the r8a7779 and sh73a0 SoCs.

It has been agreed by the relevant parties, Thomas Gleixner, Magnus Damm,
and myself that it would be best to merge this code through the renesas
tree and thus through the arm-soc tree.

This is based on:

git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas.git renesas-soc-v3.10

* tag 'renesas-intc-external-irq-for-v3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  irqchip: irqc: Add DT support
  irqchip: intc-irqpin: Initial DT support
  ARM: shmobile: Make r8a7779 INTC irqpin platform data static
  ARM: shmobile: Make sh73a0 INTC irqpin platform data static
  irqchip: Renesas IRQC driver
  irqchip: intc-irqpin: GPL header for platform data
  irqchip: intc-irqpin: Make use of devm functions
  irqchip: intc-irqpin: Add force comments
  irqchip: intc-irqpin: Cache mapped IRQ
  irqchip: intc-irqpin: Whitespace fixes
  ARM: shmobile: INTC External IRQ pin driver on r8a7779
  ARM: shmobile: INTC External IRQ pin driver on sh73a0
  ARM: shmobile: irq_pin() for static IRQ pin assignment
  irqchip: Renesas INTC External IRQ pin driver

Signed-off-by: Arnd Bergmann <arnd@arndb.de>