GitHub/moto-9609/android_kernel_motorola_exynos9610.git
12 years agodrivers/misc/ti-st: fix read fw version cmd
Pavan Savoy [Fri, 3 Aug 2012 19:49:43 +0000 (14:49 -0500)]
drivers/misc/ti-st: fix read fw version cmd

If the read firmware version response from the chip is split into multiple
frames of UART buffer being received by the host, the TI-ST driver as of today
is unable to put the pieces of response together unlike other responses.

Signed-off-by: Pavan Savoy <pavan_savoy@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
12 years agodrivers/misc/ti-st: use cpu friendly completions
Pavan Savoy [Fri, 3 Aug 2012 19:49:42 +0000 (14:49 -0500)]
drivers/misc/ti-st: use cpu friendly completions

Be nice to CPU and don't hog the resources, use a nice wait_for_interruptible
timeout for completions instead of wait_for_timeout which is
non-interruptible.

Signed-off-by: Pavan Savoy <pavan_savoy@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
12 years agodrivers/misc/ti-st: chip_disable on timeout
Pavan Savoy [Fri, 3 Aug 2012 19:49:41 +0000 (14:49 -0500)]
drivers/misc/ti-st: chip_disable on timeout

If the communication with the WiLink breaks down for whatever reasons & the
ti-st driver is unable to un-install the line-discipline during clean-up in
st_kim_stop, the GPIO should be held low (BT_EN=0) & the platform's chip
disable hook shall also be called.

Signed-off-by: Pavan Savoy <pavan_savoy@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
12 years agodrivers/misc/ti-st: remove sparse warnings
Pavan Savoy [Fri, 3 Aug 2012 19:49:40 +0000 (14:49 -0500)]
drivers/misc/ti-st: remove sparse warnings

remove sparse warnings by assigning right storage specifiers to functions and
also clean-up the declarations in the include/linux/ti_wilink_st.h

Signed-off-by: Pavan Savoy <pavan_savoy@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
12 years agodrivers/misc/ti-st: remove gpio handling
Pavan Savoy [Fri, 3 Aug 2012 19:49:39 +0000 (14:49 -0500)]
drivers/misc/ti-st: remove gpio handling

A platform hook to enable/disable the chip was introduced to perform specific
activities to power-up and power-down the WL chip.
Moving the power-up/down sequence also there makes more sense, since different
platforms have begun to have their own ways to power-up/down the chip.
This patch removes all of the gpio handling done by the driver in
st_kim_start/st_kim_stop & any of the gpio request done in the probe function.

Signed-off-by: Pavan Savoy <pavan_savoy@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
12 years agodriver: misc: bmp085: remove "of_match_table" property.
Sourav Poddar [Mon, 6 Aug 2012 09:28:44 +0000 (14:58 +0530)]
driver: misc: bmp085: remove "of_match_table" property.

There is an automatic binding done for I2C devices in the of_i2c core
code. So, DT will be able to bind to any I2C device using the
already existing table: MODULE_DEVICE_TABLE(i2c, bmp085_id).

Tested on omap5430 evm.

Signed-off-by: Sourav Poddar <sourav.poddar@ti.com>
Cc: Benoit Cousson <b-cousson@ti.com>
Cc: Santosh Shilimkar <santosh.shilimkar@ti.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
12 years agocarma: remove unnecessary DMA_INTERRUPT capability
Qiang Liu [Thu, 9 Aug 2012 08:23:31 +0000 (16:23 +0800)]
carma: remove unnecessary DMA_INTERRUPT capability

These drivers set the DMA_INTERRUPT capability bit when requesting a DMA
controller channel. This was historical, and is no longer needed.

Recent changes to the drivers/dma/fsldma.c driver have removed support
for this flag. This makes the carma drivers unable to find a DMA channel
with the required capabilities.

Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ira W. Snyder <iws@ovro.caltech.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
12 years agopch_phub: use module_pci_driver
Devendra Naga [Sun, 29 Jul 2012 11:23:30 +0000 (17:08 +0545)]
pch_phub: use module_pci_driver

this driver's pch_phub_pci_init, and pch_phub_pci_exit functions with
the module_init and module_exit calls can be replaced with
module_pci_driver

Signed-off-by: Devendra Naga <develkernel412222@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
12 years agopch_phub: fix sparse warning
Devendra Naga [Sun, 29 Jul 2012 11:23:29 +0000 (17:08 +0545)]
pch_phub: fix sparse warning

sparse warns about using 0 as NULL pointer,

drivers/misc/pch_phub.c:702:44: warning: Using plain integer as NULL pointer

Signed-off-by: Devendra Naga <develkernel412222@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
12 years agodrivers/char/tlclk.c: fix error return code
Julia Lawall [Sun, 5 Aug 2012 09:52:35 +0000 (11:52 +0200)]
drivers/char/tlclk.c: fix error return code

Convert a 0 error return code to a negative one, as returned elsewhere in the
function.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
identifier ret;
expression e,e1,e2,e3,e4,x;
@@

(
if (\(ret != 0\|ret < 0\) || ...) { ... return ...; }
|
ret = 0
)
... when != ret = e1
*x = \(kmalloc\|kzalloc\|kcalloc\|devm_kzalloc\|ioremap\|ioremap_nocache\|devm_ioremap\|devm_ioremap_nocache\)(...);
... when != x = e2
    when != ret = e3
*if (x == NULL || ...)
{
  ... when != ret = e4
*  return ret;
}
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Acked-by: Mark Gross <mark.gross@intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
12 years agoonewire: w1-gpio: add ext_pullup_enable pin in platform data
Daniel Mack [Wed, 25 Jul 2012 20:54:29 +0000 (22:54 +0200)]
onewire: w1-gpio: add ext_pullup_enable pin in platform data

In the process of porting boards to devicetree implemenation, we should
keep information about external circuitry where they belong - the
individual drivers.

This patch adds a way to specify a GPIO to drive the (optional) external
pull-up logic, rather than using a function pointer for that.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Acked-by: Ville Syrjälä <syrjala@sci.fi>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
12 years agoonewire: w1-gpio: add DT bindings
Daniel Mack [Mon, 23 Jul 2012 14:36:35 +0000 (16:36 +0200)]
onewire: w1-gpio: add DT bindings

This patch add DT bindings to the w1-gpio driver, along with some
documentation on how to use them.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Acked-by: Ville Syrjälä <syrjala@sci.fi>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
12 years agow1: omap-hdq: drop ARCH dependency
Felipe Balbi [Wed, 25 Jul 2012 12:05:32 +0000 (15:05 +0300)]
w1: omap-hdq: drop ARCH dependency

Let the driver compile everywhere while
also removing unnecessary headers.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
12 years agow1: omap-hdq: remove unnecessary return
Felipe Balbi [Wed, 25 Jul 2012 12:05:31 +0000 (15:05 +0300)]
w1: omap-hdq: remove unnecessary return

trivial patch, no functional changes.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
12 years agow1: omap-hdq: convert to devm_* functions
Felipe Balbi [Wed, 25 Jul 2012 12:05:30 +0000 (15:05 +0300)]
w1: omap-hdq: convert to devm_* functions

this lets us remove a bit of boilerplate code.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
12 years agow1: omap-hdq: convert to module_platform_driver
Felipe Balbi [Wed, 25 Jul 2012 12:05:29 +0000 (15:05 +0300)]
w1: omap-hdq: convert to module_platform_driver

trivial patch, no functional changes.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
12 years agow1: omap-hdq: don't hardcode resource size
Felipe Balbi [Wed, 25 Jul 2012 12:05:28 +0000 (15:05 +0300)]
w1: omap-hdq: don't hardcode resource size

we have the helpful resource_size() macro to
calculate the size of the memory resource for
us, let's use it.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
12 years agow1: omap-hdq: add section annotation to remove
Felipe Balbi [Wed, 25 Jul 2012 12:05:27 +0000 (15:05 +0300)]
w1: omap-hdq: add section annotation to remove

trivial patch, no functional changes.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
12 years agomei: wd: use watchdog_set/get_drvdata for passing mei_device
Tomas Winkler [Thu, 16 Aug 2012 16:39:44 +0000 (19:39 +0300)]
mei: wd: use watchdog_set/get_drvdata for passing mei_device

use watchdog_set/get_drvdata for passing mei_device
to watchdog_ops handlers instead of using global mei_device

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
12 years agomei: wd: decouple and revamp watchdog state machine
Tomas Winkler [Thu, 16 Aug 2012 16:39:43 +0000 (19:39 +0300)]
mei: wd: decouple and revamp watchdog state machine

Before ME watchdog was exported through standard watchdog interface
it was closed and started together with the mei device.

The major issue is that closing ME watchdog disabled also MEI device,
to fix this the watchdog state machine has to be independent from MEI
state machine.

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
12 years agomei: wd: rename watchdog constants to be more descriptive
Tomas Winkler [Thu, 16 Aug 2012 16:39:42 +0000 (19:39 +0300)]
mei: wd: rename watchdog constants to be more descriptive

1. rename defines to more be descriptive
2. remove duplicated defines from interface.h
3. add common prefix MEI_

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
12 years agomei: wd: add option WDIOF_SETTIMEOUT
Tomas Winkler [Thu, 16 Aug 2012 16:39:41 +0000 (19:39 +0300)]
mei: wd: add option WDIOF_SETTIMEOUT

According watchdog-kernel-api.txt WDIOF_SETTIMEOUT
should be set if the driver supplies set_timeout function

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
12 years agomei: fix device stall after wd is stopped
Tomas Winkler [Thu, 16 Aug 2012 13:25:33 +0000 (16:25 +0300)]
mei: fix device stall after wd is stopped

After watchdog was disabled the driver would stall
due to wrong calculation of credits reduction

The cat&paste bug was introduced in the commit
7bdf72d3d8059a50214069ea4b87c2174645f40f
mei: introduce mei_data2slots wrapper

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
12 years agomei: name space for mei device state
Tomas Winkler [Mon, 6 Aug 2012 21:03:56 +0000 (00:03 +0300)]
mei: name space for mei device state

1. add MEI_DEV_ prefix for mei device state enums
2. rename mei_state to dev_state
3. add constant to string translation for debug purposes

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
12 years agomei: style : reformat PCI device IDs
Tomas Winkler [Mon, 6 Aug 2012 21:03:55 +0000 (00:03 +0300)]
mei: style : reformat PCI device IDs

1. reformat PCI ids list in hw.h for better readability
2. update some code and brand names

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
12 years agomei: use KBUILD_MODNAME when allocating resources from the OS
Tomas Winkler [Mon, 6 Aug 2012 21:03:54 +0000 (00:03 +0300)]
mei: use KBUILD_MODNAME when allocating resources from the OS

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
12 years agomei: add mei_quirk_probe function
Tomas Winkler [Mon, 6 Aug 2012 12:23:55 +0000 (15:23 +0300)]
mei: add mei_quirk_probe function

The main purpose of this function is to exclude ME devices
without support for MEI/HECI interface from binding

Currently affected systems are C600/X79 based servers
that expose PCI device even though it doesn't supported ME Interface.
MEI driver accessing such nonfunctional device can corrupt
the system.

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
12 years agomei: revamp me client search function
Tomas Winkler [Mon, 23 Jul 2012 11:05:39 +0000 (14:05 +0300)]
mei: revamp me client search function

me client search functions returns index
into me_client array according me client id
or me client uuid.

1. Add common prefix for the functions mei_me_cl_<>
2. create new function mei_me_cl_by_id that wraps open
 coded loops scattered over the code
3. rename mei_find_me_client_index to  mei_me_cl_by_uuid
4. rename mei_find_me_client_update_filext  to
 mei_me_cl_update_filext and updates its parameter names

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
12 years agoLinux 3.6-rc1
Linus Torvalds [Thu, 2 Aug 2012 23:38:10 +0000 (16:38 -0700)]
Linux 3.6-rc1

12 years agoMerge branch 'for-linus-3.6' of git://dev.laptop.org/users/dilinger/linux-olpc
Linus Torvalds [Thu, 2 Aug 2012 18:52:39 +0000 (11:52 -0700)]
Merge branch 'for-linus-3.6' of git://dev.laptop.org/users/dilinger/linux-olpc

Pull OLPC platform updates from Andres Salomon:
 "These move the OLPC Embedded Controller driver out of
  arch/x86/platform and into drivers/platform/olpc.

  OLPC machines are now ARM-based (which means lots of x86 and ARM
  changes), but are typically pretty self-contained..  so it makes more
  sense to go through a separate OLPC tree after getting the appropriate
  review/ACKs."

* 'for-linus-3.6' of git://dev.laptop.org/users/dilinger/linux-olpc:
  x86: OLPC: move s/r-related EC cmds to EC driver
  Platform: OLPC: move global variables into priv struct
  Platform: OLPC: move debugfs support from x86 EC driver
  x86: OLPC: switch over to using new EC driver on x86
  Platform: OLPC: add a suspended flag to the EC driver
  Platform: OLPC: turn EC driver into a platform_driver
  Platform: OLPC: allow EC cmd to be overridden, and create a workqueue to call it
  drivers: OLPC: update various drivers to include olpc-ec.h
  Platform: OLPC: add a stub to drivers/platform/ for the OLPC EC driver

12 years agoMerge tag 'dt2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Linus Torvalds [Thu, 2 Aug 2012 18:50:24 +0000 (11:50 -0700)]
Merge tag 'dt2' of git://git./linux/kernel/git/arm/arm-soc

Pull arm-soc Marvell Orion device-tree updates from Olof Johansson:
 "This contains a set of device-tree conversions for Marvell Orion
  platforms that were staged early but took a few tries to get the
  branch into a format where it was suitable for us to pick up.

  Given that most people working on these platforms are hobbyists with
  limited time, we were a bit more flexible with merging it even though
  it came in late."

* tag 'dt2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (21 commits)
  ARM: Kirkwood: Replace mrvl with marvell
  ARM: Kirkwood: Describe GoFlex Net LEDs and SATA in DT.
  ARM: Kirkwood: Describe Dreamplug LEDs in DT.
  ARM: Kirkwood: Describe iConnects LEDs in DT.
  ARM: Kirkwood: Describe iConnects temperature sensor in DT.
  ARM: Kirkwood: Describe IB62x0 LEDs in DT.
  ARM: Kirkwood: Describe IB62x0 gpio-keys in DT.
  ARM: Kirkwood: Describe DNS32? gpio-keys in DT.
  ARM: Kirkwood: Move common portions into a kirkwood-dnskw.dtsi
  ARM: Kirkwood: Replace DNS-320/DNS-325 leds with dt bindings
  ARM: Kirkwood: Describe DNS325 temperature sensor in DT.
  ARM: Kirkwood: Use DT to configure SATA device.
  ARM: kirkwood: use devicetree for SPI on dreamplug
  ARM: kirkwood: Add LS-XHL and LS-CHLv2 support
  ARM: Kirkwood: Initial DTS support for Kirkwood GoFlex Net
  ARM: Kirkwood: Add basic device tree support for QNAP TS219.
  ATA: sata_mv: Add device tree support
  ARM: Orion: DTify the watchdog timer.
  ARM: Orion: Add arch support needed for I2C via DT.
  ARM: kirkwood: use devicetree for orion-spi
  ...

Conflicts:
drivers/watchdog/orion_wdt.c

12 years agoMerge tag 'pm2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Linus Torvalds [Thu, 2 Aug 2012 18:48:54 +0000 (11:48 -0700)]
Merge tag 'pm2' of git://git./linux/kernel/git/arm/arm-soc

Pull arm-soc cpuidle enablement for OMAP from Olof Johansson:
 "Coupled cpuidle was meant to merge for 3.5 through Len Brown's tree,
  but didn't go in because the pull request ended up rejected.  So it
  just got merged, and we got this staged branch that enables the
  coupled cpuidle code on OMAP.

  With a stable git workflow from the other maintainer we could have
  staged this earlier, but that wasn't the case so we have had to merge
  it late.

  The alternative is to hold it off until 3.7 but given that the code is
  well-isolated to OMAP and they are eager to see it go in, I didn't
  push back hard in that direction."

* tag 'pm2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: OMAP4: CPUidle: Open broadcast clock-event device.
  ARM: OMAP4: CPUidle: add synchronization for coupled idle states
  ARM: OMAP4: CPUidle: Use coupled cpuidle states to implement SMP cpuidle.
  ARM: OMAP: timer: allow gp timer clock-event to be used on both cpus

12 years agoMerge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm...
Linus Torvalds [Thu, 2 Aug 2012 18:48:20 +0000 (11:48 -0700)]
Merge tag 'fixes-for-linus' of git://git./linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Olof Johansson:
 "A few fixes for merge window fallout, and a bugfix for timer resume on
  PRIMA2."

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: mmp: add missing irqs.h
  arm: mvebu: fix typo in .dtsi comment for Armada XP SoCs
  ARM: PRIMA2: delete redundant codes to restore LATCHED when timer resumes
  ARM: mxc: Include missing irqs.h header

12 years agoMerge tag 'sh-for-linus' of git://github.com/pmundt/linux-sh
Linus Torvalds [Thu, 2 Aug 2012 18:45:42 +0000 (11:45 -0700)]
Merge tag 'sh-for-linus' of git://github.com/pmundt/linux-sh

Pull SuperH fixes from Paul Mundt.

* tag 'sh-for-linus' of git://github.com/pmundt/linux-sh: (24 commits)
  sh: explicitly include sh_dma.h in setup-sh7722.c
  sh: ecovec: care CN5 VBUS if USB host mode
  sh: sh7724: fixup renesas_usbhs clock settings
  sh: intc: initial irqdomain support.
  sh: pfc: Fix up init ordering mess.
  serial: sh-sci: fix compilation breakage, when DMA is enabled
  dmaengine: shdma: restore partial transfer calculation
  sh: modify the sh_dmae_slave_config for RSPI in setup-sh7757
  sh: Fix up recursive fault in oops with unset TTB.
  sh: pfc: Build fix for pinctrl_remove_gpio_range() changes.
  sh: select the fixed regulator driver on several boards
  sh: ecovec: switch MMC power control to regulators
  sh: add fixed voltage regulators to se7724
  sh: add fixed voltage regulators to sdk7786
  sh: add fixed voltage regulators to rsk
  sh: add fixed voltage regulators to migor
  sh: add fixed voltage regulators to kfr2r09
  sh: add fixed voltage regulators to ap325rxa
  sh: add fixed voltage regulators to sh7757lcr
  sh: add fixed voltage regulators to sh2007
  ...

12 years agoMerge tag 'md-3.6' of git://neil.brown.name/md
Linus Torvalds [Thu, 2 Aug 2012 18:34:40 +0000 (11:34 -0700)]
Merge tag 'md-3.6' of git://neil.brown.name/md

Pull additional md update from NeilBrown:
 "This contains a few patches that depend on plugging changes in the
  block layer so needed to wait for those.

  It also contains a Kconfig fix for the new RAID10 support in dm-raid."

* tag 'md-3.6' of git://neil.brown.name/md:
  md/dm-raid: DM_RAID should select MD_RAID10
  md/raid1: submit IO from originating thread instead of md thread.
  raid5: raid5d handle stripe in batch way
  raid5: make_request use batch stripe release

12 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph...
Linus Torvalds [Thu, 2 Aug 2012 17:57:31 +0000 (10:57 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/sage/ceph-client

Pull two ceph fixes from Sage Weil:
 "The first patch fixes up the old crufty open intent code to use the
  atomic_open stuff properly, and the second fixes a possible null deref
  and memory leak with the crypto keys."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
  libceph: fix crypto key null deref, memory leak
  ceph: simplify+fix atomic_open

12 years agoMerge tag 'ecryptfs-3.6-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Thu, 2 Aug 2012 17:56:34 +0000 (10:56 -0700)]
Merge tag 'ecryptfs-3.6-rc1-fixes' of git://git./linux/kernel/git/tyhicks/ecryptfs

Pull ecryptfs fixes from Tyler Hicks:
 - Fixes a bug when the lower filesystem mount options include 'acl',
   but the eCryptfs mount options do not
 - Cleanups in the messaging code
 - Better handling of empty files in the lower filesystem to improve
   usability.  Failed file creations are now cleaned up and empty lower
   files are converted into eCryptfs during open().
 - The write-through cache changes are being reverted due to bugs that
   are not easy to fix.  Stability outweighs the performance
   enhancements here.
 - Improvement to the mount code to catch unsupported ciphers specified
   in the mount options

* tag 'ecryptfs-3.6-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tyhicks/ecryptfs:
  eCryptfs: check for eCryptfs cipher support at mount
  eCryptfs: Revert to a writethrough cache model
  eCryptfs: Initialize empty lower files when opening them
  eCryptfs: Unlink lower inode when ecryptfs_create() fails
  eCryptfs: Make all miscdev functions use daemon ptr in file private_data
  eCryptfs: Remove unused messaging declarations and function
  eCryptfs: Copy up POSIX ACL and read-only flags from lower mount

12 years agoMerge branch 'for-next' of git://git.samba.org/sfrench/cifs-2.6
Linus Torvalds [Thu, 2 Aug 2012 17:54:11 +0000 (10:54 -0700)]
Merge branch 'for-next' of git://git.samba.org/sfrench/cifs-2.6

Pull CIFS update from Steve French:
 "Adds SMB2 rmdir/mkdir capability to the SMB2/SMB2.1 support in cifs.

  I am holding up a few more days on merging the remainder of the
  SMB2/SMB2.1 enablement although it is nearing review completion, in
  order to address some review comments from Jeff Layton on a few of the
  subsequent SMB2 patches, and also to debug an unrelated cifs problem
  that Pavel discovered."

* 'for-next' of git://git.samba.org/sfrench/cifs-2.6:
  CIFS: Add SMB2 support for rmdir
  CIFS: Move rmdir code to ops struct
  CIFS: Add SMB2 support for mkdir operation
  CIFS: Separate protocol specific part from mkdir
  CIFS: Simplify cifs_mkdir call

12 years agomm: remove node_start_pfn checking in new WARN_ON for now
Linus Torvalds [Thu, 2 Aug 2012 17:37:03 +0000 (10:37 -0700)]
mm: remove node_start_pfn checking in new WARN_ON for now

Borislav Petkov reports that the new warning added in commit
88fdf75d1bb5 ("mm: warn if pg_data_t isn't initialized with zero")
triggers for him, and it is the node_start_pfn field that has already
been initialized once.

The call trace looks like this:

  x86_64_start_kernel ->
    x86_64_start_reservations ->
    start_kernel ->
    setup_arch ->
    paging_init ->
    zone_sizes_init ->
    free_area_init_nodes ->
    free_area_init_node

and (with the warning replaced by debug output), Borislav sees

  On node 0 totalpages: 4193848
    DMA zone: 64 pages used for memmap
    DMA zone: 6 pages reserved
    DMA zone: 3890 pages, LIFO batch:0
    DMA32 zone: 16320 pages used for memmap
    DMA32 zone: 798464 pages, LIFO batch:31
    Normal zone: 52736 pages used for memmap
    Normal zone: 3322368 pages, LIFO batch:31
  free_area_init_node: pgdat->node_start_pfn: 4423680      <----
  On node 1 totalpages: 4194304
    Normal zone: 65536 pages used for memmap
    Normal zone: 4128768 pages, LIFO batch:31
  free_area_init_node: pgdat->node_start_pfn: 8617984      <----
  On node 2 totalpages: 4194304
    Normal zone: 65536 pages used for memmap
    Normal zone: 4128768 pages, LIFO batch:31
  free_area_init_node: pgdat->node_start_pfn: 12812288     <----
  On node 3 totalpages: 4194304
    Normal zone: 65536 pages used for memmap
    Normal zone: 4128768 pages, LIFO batch:31

so remove the bogus warning for now to avoid annoying people.  Minchan
Kim is looking at it.

Reported-by: Borislav Petkov <bp@amd64.org>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agoARM: mmp: add missing irqs.h
Haojian Zhuang [Mon, 30 Jul 2012 14:20:34 +0000 (22:20 +0800)]
ARM: mmp: add missing irqs.h

arch/arm/mach-mmp/gplugd.c:195:13: error: ‘MMP_NR_IRQS’ undeclared here
(not in a function)
make[1]: *** [arch/arm/mach-mmp/gplugd.o] Error 1

Include <mach/irqs.h> to fix this issue.

Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
12 years agoarm: mvebu: fix typo in .dtsi comment for Armada XP SoCs
Thomas Petazzoni [Thu, 2 Aug 2012 15:13:47 +0000 (17:13 +0200)]
arm: mvebu: fix typo in .dtsi comment for Armada XP SoCs

The comment was wrongly referring to Armada 370 while the file is
related to Armada XP.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
12 years agoARM: PRIMA2: delete redundant codes to restore LATCHED when timer resumes
Barry Song [Mon, 30 Jul 2012 05:29:30 +0000 (13:29 +0800)]
ARM: PRIMA2: delete redundant codes to restore LATCHED when timer resumes

The only way to write LATCHED registers to write LATCH_BIT to LATCH register,
that will latch COUNTER into LATCHED.e.g.
writel_relaxed(SIRFSOC_TIMER_LATCH_BIT, sirfsoc_timer_base +
SIRFSOC_TIMER_LATCH);

Writing values to LATCHED registers directly is useless at all.

Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
12 years agolibceph: fix crypto key null deref, memory leak
Sylvain Munaut [Thu, 2 Aug 2012 16:12:59 +0000 (09:12 -0700)]
libceph: fix crypto key null deref, memory leak

Avoid crashing if the crypto key payload was NULL, as when it was not correctly
allocated and initialized.  Also, avoid leaking it.

Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
Signed-off-by: Sage Weil <sage@inktank.com>
Reviewed-by: Alex Elder <elder@inktank.com>
12 years agoceph: simplify+fix atomic_open
Sage Weil [Tue, 31 Jul 2012 18:27:36 +0000 (11:27 -0700)]
ceph: simplify+fix atomic_open

The initial ->atomic_open op was carried over from the old intent code,
which was incomplete and didn't really work.  Replace it with a fresh
method.  In particular:

 * always attempt to do an atomic open+lookup, both for the create case
   and for lookups of existing files.
 * fix symlink handling by returning 1 to the VFS so that we can follow
   the link to its destination. This fixes a longstanding ceph bug (#2392).

Signed-off-by: Sage Weil <sage@inktank.com>
12 years agosh: explicitly include sh_dma.h in setup-sh7722.c
Guennadi Liakhovetski [Wed, 1 Aug 2012 08:44:57 +0000 (10:44 +0200)]
sh: explicitly include sh_dma.h in setup-sh7722.c

setup-sh7722.c defines several objects, whose types are defined in
sh_dma.h, so, it has to be included explicitly.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
12 years agoMerge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Linus Torvalds [Wed, 1 Aug 2012 23:47:15 +0000 (16:47 -0700)]
Merge branch 'upstream' of git://git.linux-mips.org/ralf/upstream-linus

Pull MIPS updates from Ralf Baechle:
 "The lion share of this pull request are fixes for clk-related breakage
  caused by other changes during this merge window.  For some platforms
  the fix was as simple as selecting HAVE_CLK, for others like the
  Loongson 2 significant restructuring was required.

  The remainder are changes required to get the Lantiq code to work
  again."

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
  MIPS: Loongson 2: Sort out clock managment.
  MIPS: Loongson 1: more clk support and add select HAVE_CLK
  MIPS: txx9: Fix redefinition of clk_* by adding select HAVE_CLK
  MIPS: BCM63xx: Fix redefinition of clk_* by adding select HAVE_CLK
  MIPS: AR7: Fix redefinition of clk_* by adding select HAVE_CLK
  MIPS: Lantiq: Platform specific CLK fixup
  MIPS: Lantiq: Add device_tree_init function
  MIPS: Lantiq: Fix interface clock and PCI control register offset

12 years agoMerge branch 'for-linus-3.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Wed, 1 Aug 2012 23:45:02 +0000 (16:45 -0700)]
Merge branch 'for-linus-3.6-rc1' of git://git./linux/kernel/git/rw/uml

Pull UML fixes from Richard Weinberger:
 "This patch set contains mostly fixes and cleanups.  The UML tty driver
  uses now tty_port and is no longer broken like hell  :-)"

* 'for-linus-3.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml:
  um: Add arch/x86/um to MAINTAINERS
  um: pass siginfo to guest process
  um: fix ubd_file_size for read-only files
  um: pull interrupt_end() into userspace()
  um: split syscall_trace(), pass pt_regs to it
  um: switch UPT_SET_RETURN_VALUE and regs_return_value to pt_regs
  um: set BLK_CGROUP=y in defconfig
  um: remove count_lock
  um: fully use tty_port
  um: Remove dead code
  um: remove line_ioctl()
  TTY: um/line, use tty from tty_port
  TTY: um/line, add tty_port

12 years agoMerge branch 'dmaengine' of git://git.linaro.org/people/rmk/linux-arm
Linus Torvalds [Wed, 1 Aug 2012 23:41:07 +0000 (16:41 -0700)]
Merge branch 'dmaengine' of git://git.linaro.org/people/rmk/linux-arm

Pull ARM DMA engine updates from Russell King:
 "This looks scary at first glance, but what it is is:
   - a rework of the sa11x0 DMA engine driver merged during the previous
     cycle, to extract a common set of helper functions for DMA engine
     implementations.
   - conversion of amba-pl08x.c to use these helper functions.
   - addition of OMAP DMA engine driver (using these helper functions),
     and conversion of some of the OMAP DMA users to use DMA engine.

  Nothing in the helper functions is ARM specific, so I hope that other
  implementations can consolidate some of their code by making use of
  these helpers.

  This has been sitting in linux-next most of the merge cycle, and has
  been tested by several OMAP folk.  I've tested it on sa11x0 platforms,
  and given it my best shot on my broken platforms which have the
  amba-pl08x controller.

  The last point is the addition to feature-removal-schedule.txt, which
  will have a merge conflict.  Between myself and TI, we're planning to
  remove the old TI DMA implementation next year."

Fix up trivial add/add conflicts in Documentation/feature-removal-schedule.txt
and drivers/dma/{Kconfig,Makefile}

* 'dmaengine' of git://git.linaro.org/people/rmk/linux-arm: (53 commits)
  ARM: 7481/1: OMAP2+: omap2plus_defconfig: enable OMAP DMA engine
  ARM: 7464/1: mmc: omap_hsmmc: ensure probe returns error if DMA channel request fails
  Add feature removal of old OMAP private DMA implementation
  mtd: omap2: remove private DMA API implementation
  mtd: omap2: add DMA engine support
  spi: omap2-mcspi: remove private DMA API implementation
  spi: omap2-mcspi: add DMA engine support
  ARM: omap: remove mmc platform data dma_mask and initialization
  mmc: omap: remove private DMA API implementation
  mmc: omap: add DMA engine support
  mmc: omap_hsmmc: remove private DMA API implementation
  mmc: omap_hsmmc: add DMA engine support
  dmaengine: omap: add support for cyclic DMA
  dmaengine: omap: add support for setting fi
  dmaengine: omap: add support for returning residue in tx_state method
  dmaengine: add OMAP DMA engine driver
  dmaengine: sa11x0-dma: add cyclic DMA support
  dmaengine: sa11x0-dma: fix DMA residue support
  dmaengine: PL08x: ensure all descriptors are freed when channel is released
  dmaengine: PL08x: get rid of write only pool_ctr and free_txd locking
  ...

12 years agoMerge branch 'audit' of git://git.linaro.org/people/rmk/linux-arm
Linus Torvalds [Wed, 1 Aug 2012 23:35:37 +0000 (16:35 -0700)]
Merge branch 'audit' of git://git.linaro.org/people/rmk/linux-arm

Pull ARM audit/signal updates from Russell King:
 "ARM audit/signal handling updates from Al and Will.  This improves on
  the work Viro did last merge window, and sorts out some of the issues
  found with that work."

* 'audit' of git://git.linaro.org/people/rmk/linux-arm:
  ARM: 7475/1: sys_trace: allow all syscall arguments to be updated via ptrace
  ARM: 7474/1: get rid of TIF_SYSCALL_RESTARTSYS
  ARM: 7473/1: deal with handlerless restarts without leaving the kernel
  ARM: 7472/1: pull all work_pending logics into C function
  ARM: 7471/1: Revert "7442/1: Revert "remove unused restart trampoline""
  ARM: 7470/1: Revert "7443/1: Revert "new way of handling ERESTART_RESTARTBLOCK""

12 years agoMerge branch 'fixes' of git://git.linaro.org/people/rmk/linux-arm
Linus Torvalds [Wed, 1 Aug 2012 23:30:45 +0000 (16:30 -0700)]
Merge branch 'fixes' of git://git.linaro.org/people/rmk/linux-arm

Pull ARM fixes from Russell King:
 "This fixes various issues found during July"

* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
  ARM: 7479/1: mm: avoid NULL dereference when flushing gate_vma with VIVT caches
  ARM: Fix undefined instruction exception handling
  ARM: 7480/1: only call smp_send_stop() on SMP
  ARM: 7478/1: errata: extend workaround for erratum #720789
  ARM: 7477/1: vfp: Always save VFP state in vfp_pm_suspend on UP
  ARM: 7476/1: vfp: only clear vfp state for current cpu in vfp_pm_suspend
  ARM: 7468/1: ftrace: Trace function entry before updating index
  ARM: 7467/1: mutex: use generic xchg-based implementation for ARMv6+
  ARM: 7466/1: disable interrupt before spinning endlessly
  ARM: 7465/1: Handle >4GB memory sizes in device tree and mem=size@start option

12 years agoum: Add arch/x86/um to MAINTAINERS
Richard Weinberger [Wed, 1 Aug 2012 23:00:47 +0000 (01:00 +0200)]
um: Add arch/x86/um to MAINTAINERS

Signed-off-by: Richard Weinberger <richard@nod.at>
12 years agoum: pass siginfo to guest process
Martin Pärtel [Wed, 1 Aug 2012 22:49:17 +0000 (00:49 +0200)]
um: pass siginfo to guest process

UML guest processes now get correct siginfo_t for SIGTRAP, SIGFPE,
SIGILL and SIGBUS. Specifically, si_addr and si_code are now correct
where previously they were si_addr = NULL and si_code = 128.

Signed-off-by: Martin Pärtel <martin.partel@gmail.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
12 years agoum: fix ubd_file_size for read-only files
Martin Pärtel [Wed, 1 Aug 2012 22:44:22 +0000 (00:44 +0200)]
um: fix ubd_file_size for read-only files

Made ubd_file_size not request write access. Fixes use of read-only images.

Signed-off-by: Martin Pärtel <martin.partel@gmail.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
12 years agomd/dm-raid: DM_RAID should select MD_RAID10
NeilBrown [Wed, 1 Aug 2012 22:35:43 +0000 (08:35 +1000)]
md/dm-raid: DM_RAID should select MD_RAID10

Now that DM_RAID supports raid10, it needs to select that code
to ensure it is included.

Cc: Jonathan Brassow <jbrassow@redhat.com>
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: NeilBrown <neilb@suse.de>
12 years agomd/raid1: submit IO from originating thread instead of md thread.
NeilBrown [Wed, 1 Aug 2012 22:33:20 +0000 (08:33 +1000)]
md/raid1: submit IO from originating thread instead of md thread.

queuing writes to the md thread means that all requests go through the
one processor which may not be able to keep up with very high request
rates.

So use the plugging infrastructure to submit all requests on unplug.
If a 'schedule' is needed, we fall back on the old approach of handing
the requests to the thread for it to handle.

Signed-off-by: NeilBrown <neilb@suse.de>
12 years agoraid5: raid5d handle stripe in batch way
Shaohua Li [Wed, 1 Aug 2012 22:33:15 +0000 (08:33 +1000)]
raid5: raid5d handle stripe in batch way

Let raid5d handle stripe in batch way to reduce conf->device_lock locking.

Signed-off-by: Shaohua Li <shli@fusionio.com>
Signed-off-by: NeilBrown <neilb@suse.de>
12 years agoraid5: make_request use batch stripe release
Shaohua Li [Wed, 1 Aug 2012 22:33:00 +0000 (08:33 +1000)]
raid5: make_request use batch stripe release

make_request() does stripe release for every stripe and the stripe usually has
count 1, which makes previous release_stripe() optimization not work. In my
test, this release_stripe() becomes the heaviest pleace to take
conf->device_lock after previous patches applied.

Below patch makes stripe release batch. All the stripes will be released in
unplug. The STRIPE_ON_UNPLUG_LIST bit is to protect concurrent access stripe
lru.

Signed-off-by: Shaohua Li <shli@fusionio.com>
Signed-off-by: NeilBrown <neilb@suse.de>
12 years agoum: pull interrupt_end() into userspace()
Al Viro [Wed, 23 May 2012 04:25:15 +0000 (00:25 -0400)]
um: pull interrupt_end() into userspace()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
12 years agoum: split syscall_trace(), pass pt_regs to it
Al Viro [Wed, 23 May 2012 04:18:33 +0000 (00:18 -0400)]
um: split syscall_trace(), pass pt_regs to it

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
[richard@nod.at: Fixed some minor build issues]
Signed-off-by: Richard Weinberger <richard@nod.at>
12 years agoum: switch UPT_SET_RETURN_VALUE and regs_return_value to pt_regs
Al Viro [Wed, 23 May 2012 01:16:35 +0000 (21:16 -0400)]
um: switch UPT_SET_RETURN_VALUE and regs_return_value to pt_regs

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
12 years agoMerge tag 'fbdev-updates-for-3.6' of git://github.com/schandinat/linux-2.6
Linus Torvalds [Wed, 1 Aug 2012 17:45:12 +0000 (10:45 -0700)]
Merge tag 'fbdev-updates-for-3.6' of git://github.com/schandinat/linux-2.6

Pull fbdev updates from Florian Tobias Schandinat:
 - large updates for OMAP
   - support for LCD3 overlay manager (omap5)
   - omapdss output cleanup
   - removal of passive matrix LCD support as there are no drivers for
     such panels for DSS or DSS2 and nobody complained (cleanup)
 - large updates for SH Mobile
   - overlay support
   - separating MERAM (cache) from framebuffer driver
 - some updates for Exynos and da8xx-fb
 - various other small patches

* tag 'fbdev-updates-for-3.6' of git://github.com/schandinat/linux-2.6: (78 commits)
  da8xx-fb: fix compile issue due to missing include
  fbdev: Make pixel_to_pat() failure mode more friendly
  da8xx-fb: do not turn ON LCD backlight unless LCDC is enabled
  fbdev: sh_mobile_lcdc: Fix vertical panning step
  video: exynos mipi dsi: Fix mipi dsi regulators handling issue
  video: da8xx-fb: do clock reset of revision 2 LCDC before enabling
  arm: da850: configure LCDC fifo threshold
  video: da8xx-fb: configure FIFO threshold to reduce underflow errors
  video: da8xx-fb: fix flicker due to 1 frame delay in updated frame
  video: da8xx-fb rev2: fix disabling of palette completion interrupt
  da8xx-fb: add missing FB_BLANK operations
  video: exynos_dp: use usleep_range instead of delay
  video: exynos_dp: check the only INTERLANE_ALIGN_DONE bit during Link Training
  fb: epson1355fb: Fix section mismatch
  video: exynos_dp: fix wrong DPCD address during Link Training
  video/smscufx: fix line counting in fb_write
  aty128fb: Fix coding style issues
  fbdev: sh_mobile_lcdc: Fix pan offset computation in YUV mode
  fbdev: sh_mobile_lcdc: Fix overlay registers update during pan operation
  fbdev: sh_mobile_lcdc: Support horizontal panning
  ...

12 years agoMerge tag 'sound-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Linus Torvalds [Wed, 1 Aug 2012 17:42:26 +0000 (10:42 -0700)]
Merge tag 'sound-3.6' of git://git./linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "A collection of small fixes that have been found recently.  Most of
  the commits are regression fixes in HD-audio and some other random
  drivers."

* tag 'sound-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: snd-usb: fix clock source validity index
  ALSA: hda - Fix mute-LED GPIO initialization for IDT codecs
  ALSA: hda - Add descriptions for missing IDT 92HD83x models
  ALSA: hda - Fix polarity of mute LED on HP Mini 210
  ALSA: es1688 - freeup resources on init failure
  ALSA: hda - Workaround for silent output on VAIO Z with ALC889
  ALSA: hda - Fix WARNING from HDMI/DP parser
  ALSA: hda - Detach from converter at closing in patch_hdmi.c
  ALSA: hda - Fix mute-LED GPIO setup for HP Mini 210
  ALSA: mpu401: Fix missing initialization of irq field
  ALSA: hda - Fix invalid D3 of headphone DAC on VT202x codecs

12 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Linus Torvalds [Wed, 1 Aug 2012 17:26:23 +0000 (10:26 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/viro/vfs

Pull second vfs pile from Al Viro:
 "The stuff in there: fsfreeze deadlock fixes by Jan (essentially, the
  deadlock reproduced by xfstests 068), symlink and hardlink restriction
  patches, plus assorted cleanups and fixes.

  Note that another fsfreeze deadlock (emergency thaw one) is *not*
  dealt with - the series by Fernando conflicts a lot with Jan's, breaks
  userland ABI (FIFREEZE semantics gets changed) and trades the deadlock
  for massive vfsmount leak; this is going to be handled next cycle.
  There probably will be another pull request, but that stuff won't be
  in it."

Fix up trivial conflicts due to unrelated changes next to each other in
drivers/{staging/gdm72xx/usb_boot.c, usb/gadget/storage_common.c}

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (54 commits)
  delousing target_core_file a bit
  Documentation: Correct s_umount state for freeze_fs/unfreeze_fs
  fs: Remove old freezing mechanism
  ext2: Implement freezing
  btrfs: Convert to new freezing mechanism
  nilfs2: Convert to new freezing mechanism
  ntfs: Convert to new freezing mechanism
  fuse: Convert to new freezing mechanism
  gfs2: Convert to new freezing mechanism
  ocfs2: Convert to new freezing mechanism
  xfs: Convert to new freezing code
  ext4: Convert to new freezing mechanism
  fs: Protect write paths by sb_start_write - sb_end_write
  fs: Skip atime update on frozen filesystem
  fs: Add freezing handling to mnt_want_write() / mnt_drop_write()
  fs: Improve filesystem freezing handling
  switch the protection of percpu_counter list to spinlock
  nfsd: Push mnt_want_write() outside of i_mutex
  btrfs: Push mnt_want_write() outside of i_mutex
  fat: Push mnt_want_write() outside of i_mutex
  ...

12 years agoMIPS: Loongson 2: Sort out clock managment.
Ralf Baechle [Wed, 1 Aug 2012 15:15:32 +0000 (17:15 +0200)]
MIPS: Loongson 2: Sort out clock managment.

For unexplainable reasons the Loongson 2 clock API was implemented in a
module so fixing this involved shifting large amounts of code around.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
12 years agoMerge branch 'for-3.6/drivers' of git://git.kernel.dk/linux-block
Linus Torvalds [Wed, 1 Aug 2012 16:06:47 +0000 (09:06 -0700)]
Merge branch 'for-3.6/drivers' of git://git.kernel.dk/linux-block

Pull block driver changes from Jens Axboe:

 - Making the plugging support for drivers a bit more sane from Neil.
   This supersedes the plugging change from Shaohua as well.

 - The usual round of drbd updates.

 - Using a tail add instead of a head add in the request completion for
   ndb, making us find the most completed request more quickly.

 - A few floppy changes, getting rid of a duplicated flag and also
   running the floppy init async (since it takes forever in boot terms)
   from Andi.

* 'for-3.6/drivers' of git://git.kernel.dk/linux-block:
  floppy: remove duplicated flag FD_RAW_NEED_DISK
  blk: pass from_schedule to non-request unplug functions.
  block: stack unplug
  blk: centralize non-request unplug handling.
  md: remove plug_cnt feature of plugging.
  block/nbd: micro-optimization in nbd request completion
  drbd: announce FLUSH/FUA capability to upper layers
  drbd: fix max_bio_size to be unsigned
  drbd: flush drbd work queue before invalidate/invalidate remote
  drbd: fix potential access after free
  drbd: call local-io-error handler early
  drbd: do not reset rs_pending_cnt too early
  drbd: reset congestion information before reporting it in /proc/drbd
  drbd: report congestion if we are waiting for some userland callback
  drbd: differentiate between normal and forced detach
  drbd: cleanup, remove two unused global flags
  floppy: Run floppy initialization asynchronous

12 years agoMerge branch 'for-3.6/core' of git://git.kernel.dk/linux-block
Linus Torvalds [Wed, 1 Aug 2012 16:02:41 +0000 (09:02 -0700)]
Merge branch 'for-3.6/core' of git://git.kernel.dk/linux-block

Pull core block IO bits from Jens Axboe:
 "The most complicated part if this is the request allocation rework by
  Tejun, which has been queued up for a long time and has been in
  for-next ditto as well.

  There are a few commits from yesterday and today, mostly trivial and
  obvious fixes.  So I'm pretty confident that it is sound.  It's also
  smaller than usual."

* 'for-3.6/core' of git://git.kernel.dk/linux-block:
  block: remove dead func declaration
  block: add partition resize function to blkpg ioctl
  block: uninitialized ioc->nr_tasks triggers WARN_ON
  block: do not artificially constrain max_sectors for stacking drivers
  blkcg: implement per-blkg request allocation
  block: prepare for multiple request_lists
  block: add q->nr_rqs[] and move q->rq.elvpriv to q->nr_rqs_elvpriv
  blkcg: inline bio_blkcg() and friends
  block: allocate io_context upfront
  block: refactor get_request[_wait]()
  block: drop custom queue draining used by scsi_transport_{iscsi|fc}
  mempool: add @gfp_mask to mempool_create_node()
  blkcg: make root blkcg allocation use %GFP_KERNEL
  blkcg: __blkg_lookup_create() doesn't need radix preload

12 years agoMerge branch 'for-next' of git://neil.brown.name/md
Linus Torvalds [Wed, 1 Aug 2012 16:02:01 +0000 (09:02 -0700)]
Merge branch 'for-next' of git://neil.brown.name/md

Pull md updates from NeilBrown.

* 'for-next' of git://neil.brown.name/md:
  DM RAID: Add support for MD RAID10
  md/RAID1: Add missing case for attempting to repair known bad blocks.
  md/raid5: For odirect-write performance, do not set STRIPE_PREREAD_ACTIVE.
  md/raid1: don't abort a resync on the first badblock.
  md: remove duplicated test on ->openers when calling do_md_stop()
  raid5: Add R5_ReadNoMerge flag which prevent bio from merging at block layer
  md/raid1: prevent merging too large request
  md/raid1: read balance chooses idlest disk for SSD
  md/raid1: make sequential read detection per disk based
  MD RAID10: Export md_raid10_congested
  MD: Move macros from raid1*.h to raid1*.c
  MD RAID1: rename mirror_info structure
  MD RAID10: rename mirror_info structure
  MD RAID10: Fix compiler warning.
  raid5: add a per-stripe lock
  raid5: remove unnecessary bitmap write optimization
  raid5: lockless access raid5 overrided bi_phys_segments
  raid5: reduce chance release_stripe() taking device_lock

12 years agolocks: remove unused lm_release_private
J. Bruce Fields [Wed, 1 Aug 2012 11:56:16 +0000 (07:56 -0400)]
locks: remove unused lm_release_private

In commit 3b6e2723f32d ("locks: prevent side-effects of
locks_release_private before file_lock is initialized") we removed the
last user of lm_release_private without removing the field itself.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agoMIPS: Loongson 1: more clk support and add select HAVE_CLK
Yoichi Yuasa [Wed, 1 Aug 2012 06:42:16 +0000 (15:42 +0900)]
MIPS: Loongson 1: more clk support and add select HAVE_CLK

This fixes a redefinition of clk_*:

arch/mips/loongson1/common/clock.c:23:13: error: redefinition of 'clk_get'
include/linux/clk.h:281:27: note: previous definition of 'clk_get' was here
arch/mips/loongson1/common/clock.c:41:15: error: redefinition of 'clk_get_rate'
include/linux/clk.h:302:29: note: previous definition of 'clk_get_rate' was here
make[3]: *** [arch/mips/loongson1/common/clock.o] Error 1

Signed-off-by: Yoichi Yuasa <yuasa@linux-mips.org>
Cc: linux-mips@linux-mips.org
Reviewed-by: John Crispin <blogic@openwrt.org>
Acked-by: Kelvin Cheung <keguang.zhang@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/4143/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
12 years agoMIPS: txx9: Fix redefinition of clk_* by adding select HAVE_CLK
Yoichi Yuasa [Wed, 1 Aug 2012 06:41:06 +0000 (15:41 +0900)]
MIPS: txx9: Fix redefinition of clk_* by adding select HAVE_CLK

arch/mips/txx9/generic/setup.c:87:13: error: redefinition of 'clk_get'
include/linux/clk.h:281:27: note: previous definition of 'clk_get' was here
arch/mips/txx9/generic/setup.c:97:5: error: redefinition of 'clk_enable'
include/linux/clk.h:295:19: note: previous definition of 'clk_enable' was here
arch/mips/txx9/generic/setup.c:103:6: error: redefinition of 'clk_disable'
include/linux/clk.h:300:20: note: previous definition of 'clk_disable' was here
arch/mips/txx9/generic/setup.c:108:15: error: redefinition of 'clk_get_rate'
include/linux/clk.h:302:29: note: previous definition of 'clk_get_rate' was here
arch/mips/txx9/generic/setup.c:114:6: error: redefinition of 'clk_put'
include/linux/clk.h:291:20: note: previous definition of 'clk_put' was here
make[3]: *** [arch/mips/txx9/generic/setup.o] Error 1

Signed-off-by: Yoichi Yuasa <yuasa@linux-mips.org>
Cc: linux-mips@linux-mips.org
Reviewed-by: John Crispin <blogic@openwrt.org>
Patchwork: https://patchwork.linux-mips.org/patch/4142/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
12 years agoMIPS: BCM63xx: Fix redefinition of clk_* by adding select HAVE_CLK
Yoichi Yuasa [Wed, 1 Aug 2012 06:39:52 +0000 (15:39 +0900)]
MIPS: BCM63xx: Fix redefinition of clk_* by adding select HAVE_CLK

arch/mips/bcm63xx/clk.c:249:5: error: redefinition of 'clk_enable'
include/linux/clk.h:295:19: note: previous definition of 'clk_enable' was here
arch/mips/bcm63xx/clk.c:259:6: error: redefinition of 'clk_disable'
include/linux/clk.h:300:20: note: previous definition of 'clk_disable' was here
arch/mips/bcm63xx/clk.c:268:15: error: redefinition of 'clk_get_rate'
include/linux/clk.h:302:29: note: previous definition of 'clk_get_rate' was here
arch/mips/bcm63xx/clk.c:275:13: error: redefinition of 'clk_get'
include/linux/clk.h:281:27: note: previous definition of 'clk_get' was here
arch/mips/bcm63xx/clk.c:302:6: error: redefinition of 'clk_put'
include/linux/clk.h:291:20: note: previous definition of 'clk_put' was here
make[2]: *** [arch/mips/bcm63xx/clk.o] Error 1

Signed-off-by: Yoichi Yuasa <yuasa@linux-mips.org>
Cc: linux-mips@linux-mips.org
Reviewed-by: John Crispin <blogic@openwrt.org>
Patchwork: https://patchwork.linux-mips.org/patch/4141/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
12 years agoMIPS: AR7: Fix redefinition of clk_* by adding select HAVE_CLK
Yoichi Yuasa [Wed, 1 Aug 2012 06:38:00 +0000 (15:38 +0900)]
MIPS: AR7: Fix redefinition of clk_* by adding select HAVE_CLK

arch/mips/ar7/clock.c:420:5: error: redefinition of 'clk_enable'
include/linux/clk.h:295:19: note: previous definition of 'clk_enable' was here
arch/mips/ar7/clock.c:426:6: error: redefinition of 'clk_disable'
include/linux/clk.h:300:20: note: previous definition of 'clk_disable' was here
arch/mips/ar7/clock.c:431:15: error: redefinition of 'clk_get_rate'
include/linux/clk.h:302:29: note: previous definition of 'clk_get_rate' was here
arch/mips/ar7/clock.c:437:13: error: redefinition of 'clk_get'
include/linux/clk.h:281:27: note: previous definition of 'clk_get' was here
arch/mips/ar7/clock.c:454:6: error: redefinition of 'clk_put'
include/linux/clk.h:291:20: note: previous definition of 'clk_put' was here
make[2]: *** [arch/mips/ar7/clock.o] Error 1

Signed-off-by: Yoichi Yuasa <yuasa@linux-mips.org>
Cc: linux-mips@linux-mips.org
Reviewed-by: John Crispin <blogic@openwrt.org>
Acked-by: Florian Fainelli <florian@openwrt.org>
Patchwork: https://patchwork.linux-mips.org/patch/4140/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
12 years agoMIPS: Lantiq: Platform specific CLK fixup
John Crispin [Sun, 22 Jul 2012 06:56:01 +0000 (08:56 +0200)]
MIPS: Lantiq: Platform specific CLK fixup

As we use CLKDEV_LOOKUP but dont have support for COMMON_CLK yet, we need to
provide our own version of of_clk_get_from_provider().

Signed-off-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/4117/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
12 years agoMIPS: Lantiq: Add device_tree_init function
John Crispin [Sun, 22 Jul 2012 06:56:00 +0000 (08:56 +0200)]
MIPS: Lantiq: Add device_tree_init function

Add a lantiq specific version of device_tree_init. The generic MIPS version
was removed by.

commit 594e966bc412d64eec9282d28ce511bdd62fea39
Author: David Daney <david.daney@cavium.com>
Date:   Thu Jul 5 18:12:38 2012 +0200

MIPS: Prune some target specific code out of prom.c

Signed-off-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/4116/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
12 years agoMIPS: Lantiq: Fix interface clock and PCI control register offset
John Crispin [Sun, 22 Jul 2012 06:55:57 +0000 (08:55 +0200)]
MIPS: Lantiq: Fix interface clock and PCI control register offset

The XRX200 based SoC have a different register offset for the interface
clock and PCI control registers. This patch detects the SoC and sets the
register offset at runtime. This make PCI work on the VR9 SoC.

Signed-off-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/4113/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
12 years agodelousing target_core_file a bit
Al Viro [Wed, 1 Aug 2012 09:07:04 +0000 (13:07 +0400)]
delousing target_core_file a bit

* set_fs(KERNEL_DS) + getname() is probably the weirdest implementation
of strdup() I've seen.  Especially since they don't to copy it at all...
* filp_open() never returns NULL; it's ERR_PTR(-E...) on failure.
* file->f_dentry is never going to be NULL, TYVM.
* match_strdup() + snprintf() + kfree() is a bloody weird way to spell
match_strlcpy().

Pox on cargo-cult programmers...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agoDM RAID: Add support for MD RAID10
Jonathan Brassow [Wed, 1 Aug 2012 02:44:26 +0000 (21:44 -0500)]
DM RAID: Add support for MD RAID10

Support the MD RAID10 personality through dm-raid.c

Signed-off-by: Jonathan Brassow <jbrassow@redhat.com>
Signed-off-by: NeilBrown <neilb@suse.de>
12 years agoMerge commit 'c039c332f23e794deb6d6f37b9f07ff3b27fb2cf' into md
NeilBrown [Wed, 1 Aug 2012 10:40:02 +0000 (20:40 +1000)]
Merge commit 'c039c332f23e794deb6d6f37b9f07ff3b27fb2cf' into md

Pull in pre-requisites for adding raid10 support to dm-raid.

12 years agoblock: remove dead func declaration
Yuanhan Liu [Wed, 1 Aug 2012 10:25:54 +0000 (12:25 +0200)]
block: remove dead func declaration

__generic_unplug_device() function is removed with commit
7eaceaccab5f40bbfda044629a6298616aeaed50, which forgot to
remove the declaration at meantime. Here remove it.

Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
12 years agoblock: add partition resize function to blkpg ioctl
Vivek Goyal [Wed, 1 Aug 2012 10:24:18 +0000 (12:24 +0200)]
block: add partition resize function to blkpg ioctl

Add a new operation code (BLKPG_RESIZE_PARTITION) to the BLKPG ioctl that
allows altering the size of an existing partition, even if it is currently
in use.

This patch converts hd_struct->nr_sects into sequence counter because
One might extend a partition while IO is happening to it and update of
nr_sects can be non-atomic on 32bit machines with 64bit sector_t. This
can lead to issues like reading inconsistent size of a partition. Sequence
counter have been used so that readers don't have to take bdev mutex lock
as we call sector_in_part() very frequently.

Now all the access to hd_struct->nr_sects should happen using sequence
counter read/update helper functions part_nr_sects_read/part_nr_sects_write.
There is one exception though, set_capacity()/get_capacity(). I think
theoritically race should exist there too but this patch does not
modify set_capacity()/get_capacity() due to sheer number of call sites
and I am afraid that change might break something. I have left that as a
TODO item. We can handle it later if need be. This patch does not introduce
any new races as such w.r.t set_capacity()/get_capacity().

v2: Add CONFIG_LBDAF test to UP preempt case as suggested by Phillip.

Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Phillip Susi <psusi@ubuntu.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
12 years agoblock: uninitialized ioc->nr_tasks triggers WARN_ON
Olof Johansson [Wed, 1 Aug 2012 10:17:27 +0000 (12:17 +0200)]
block: uninitialized ioc->nr_tasks triggers WARN_ON

Hi,

I'm using the old-fashioned 'dump' backup tool, and I noticed that it spews the
below warning as of 3.5-rc1 and later (3.4 is fine):

[   10.886893] ------------[ cut here ]------------
[   10.886904] WARNING: at include/linux/iocontext.h:140 copy_process+0x1488/0x1560()
[   10.886905] Hardware name: Bochs
[   10.886906] Modules linked in:
[   10.886908] Pid: 2430, comm: dump Not tainted 3.5.0-rc7+ #27
[   10.886908] Call Trace:
[   10.886911]  [<ffffffff8107ce8a>] warn_slowpath_common+0x7a/0xb0
[   10.886912]  [<ffffffff8107ced5>] warn_slowpath_null+0x15/0x20
[   10.886913]  [<ffffffff8107c088>] copy_process+0x1488/0x1560
[   10.886914]  [<ffffffff8107c244>] do_fork+0xb4/0x340
[   10.886918]  [<ffffffff8108effa>] ? recalc_sigpending+0x1a/0x50
[   10.886919]  [<ffffffff8108f6b2>] ? __set_task_blocked+0x32/0x80
[   10.886920]  [<ffffffff81091afa>] ? __set_current_blocked+0x3a/0x60
[   10.886923]  [<ffffffff81051db3>] sys_clone+0x23/0x30
[   10.886925]  [<ffffffff8179bd73>] stub_clone+0x13/0x20
[   10.886927]  [<ffffffff8179baa2>] ? system_call_fastpath+0x16/0x1b
[   10.886928] ---[ end trace 32a14af7ee6a590b ]---

Reproducing is easy, I can hit it on a KVM system with a very basic
config (x86_64 make defconfig + enable the drivers needed). To hit it,
just install dump (on debian/ubuntu, not sure what the package might be
called on Fedora), and:

dump -o -f /tmp/foo /

You'll see the warning in dmesg once it forks off the I/O process and
starts dumping filesystem contents.

I bisected it down to the following commit:

commit f6e8d01bee036460e03bd4f6a79d014f98ba712e
Author: Tejun Heo <tj@kernel.org>
Date:   Mon Mar 5 13:15:26 2012 -0800

    block: add io_context->active_ref

    Currently ioc->nr_tasks is used to decide two things - whether an ioc
    is done issuing IOs and whether it's shared by multiple tasks.  This
    patch separate out the first into ioc->active_ref, which is acquired
    and released using {get|put}_io_context_active() respectively.

    This will be used to associate bio's with a given task.  This patch
    doesn't introduce any visible behavior change.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
It seems like the init of ioc->nr_tasks was removed in that patch,
so it starts out at 0 instead of 1.

Tejun, is the right thing here to add back the init, or should something else
be done?

The below patch removes the warning, but I haven't done any more extensive
testing on it.

Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Tejun Heo <tj@kernel.org>
Cc: stable@kernel.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
12 years agoblock: do not artificially constrain max_sectors for stacking drivers
Mike Snitzer [Wed, 1 Aug 2012 08:44:28 +0000 (10:44 +0200)]
block: do not artificially constrain max_sectors for stacking drivers

blk_set_stacking_limits is intended to allow stacking drivers to build
up the limits of the stacked device based on the underlying devices'
limits.  But defaulting 'max_sectors' to BLK_DEF_MAX_SECTORS (1024)
doesn't allow the stacking driver to inherit a max_sectors larger than
1024 -- due to blk_stack_limits' use of min_not_zero.

It is now clear that this artificial limit is getting in the way so
change blk_set_stacking_limits's max_sectors to UINT_MAX (which allows
stacking drivers like dm-multipath to inherit 'max_sectors' from the
underlying paths).

Reported-by: Vijay Chauhan <vijay.chauhan@netapp.com>
Tested-by: Vijay Chauhan <vijay.chauhan@netapp.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
12 years agoALSA: snd-usb: fix clock source validity index
Daniel Mack [Wed, 1 Aug 2012 08:16:53 +0000 (10:16 +0200)]
ALSA: snd-usb: fix clock source validity index

uac_clock_source_is_valid() uses the control selector value to access
the bmControls bitmap of the clock source unit. This is wrong, as
control selector values start from 1, while the bitmap uses all
available bits.

In other words, "Clock Validity Control" is stored in D3..2, not D5..4
of the clock selector unit's bmControls.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Reported-by: Andreas Koch <andreas@akdesigninc.com>
Cc: stable@kernel.org
Signed-off-by: Takashi Iwai <tiwai@suse.de>
12 years agoMerge branch 'common/irqdomain' into sh-latest
Paul Mundt [Wed, 1 Aug 2012 08:14:52 +0000 (17:14 +0900)]
Merge branch 'common/irqdomain' into sh-latest

12 years agosh: ecovec: care CN5 VBUS if USB host mode
Kuninori Morimoto [Wed, 1 Aug 2012 07:54:58 +0000 (00:54 -0700)]
sh: ecovec: care CN5 VBUS if USB host mode

renesas_usbhs driver can control both USB Host/Gadget,
but it needs VBUS output if Host mode.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
12 years agosh: sh7724: fixup renesas_usbhs clock settings
Kuninori Morimoto [Wed, 1 Aug 2012 07:54:22 +0000 (00:54 -0700)]
sh: sh7724: fixup renesas_usbhs clock settings

8cc88a55b03bd4940390125c2521c99368513be5
(sh: sh7724: use runtime PM implementation) broke sh7724 clocks.

renesas_usbhs needs HWBLK_USB0/1 clock on sh7724

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
12 years agosh: intc: initial irqdomain support.
Paul Mundt [Wed, 1 Aug 2012 08:13:46 +0000 (17:13 +0900)]
sh: intc: initial irqdomain support.

Trivial support for irq domains, using either a linear map or radix tree
depending on the vector layout.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
12 years agoMerge branch 'common/pinctrl' into sh-latest
Paul Mundt [Wed, 1 Aug 2012 07:28:37 +0000 (16:28 +0900)]
Merge branch 'common/pinctrl' into sh-latest

12 years agosh: pfc: Fix up init ordering mess.
Paul Mundt [Wed, 1 Aug 2012 07:27:38 +0000 (16:27 +0900)]
sh: pfc: Fix up init ordering mess.

Commit ca5481c68e9fbcea62bb3c78ae6cccf99ca8fb73 ("sh: pfc: Rudimentary
pinctrl-backed GPIO support.") introduced a regression for platforms that
were doing early GPIO API calls (from arch_initcall() or earlier),
leading to a situation where our two-stage registration logic would trip
itself up and we'd -ENODEV out of the pinctrl registration path,
resulting in endless -EPROBE_DEFER errors. Further lack of checking any
sort of errors from gpio_request() resulted in boot time warnings,
tripping on the FLAG_REQUESTED test-and-set in gpio_ensure_requested().

As it turns out there's no particular need to bother with the two-stage
registration, as the platform bus is already available at the point that
we have to start caring. As such, it's easiest to simply fold these
together in to a single init path, the ordering of which is ensured
through the platform's mux registration, as usual.

Reported-by: Rafael J. Wysocki <rjw@sisk.pl>
Reported-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
12 years agoMerge branch 'sh/dmaengine' into sh-latest
Paul Mundt [Wed, 1 Aug 2012 04:49:13 +0000 (13:49 +0900)]
Merge branch 'sh/dmaengine' into sh-latest

12 years agoserial: sh-sci: fix compilation breakage, when DMA is enabled
Guennadi Liakhovetski [Mon, 30 Jul 2012 19:28:47 +0000 (21:28 +0200)]
serial: sh-sci: fix compilation breakage, when DMA is enabled

A recent commit:

commit d6fa5a4e7ab605370fd6c982782f84ef2e6660e7
Author: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
    serial: sh-sci: prepare for conversion to the shdma base library

is not sufficient to update the sh-sci driver to the new shdma driver
layout. This caused compilation breakage, when CONFIG_SERIAL_SH_SCI_DMA
is enabled. This patch trivially fixes the problem by updating the DMA
descriptor manipulation code.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
12 years agodmaengine: shdma: restore partial transfer calculation
Guennadi Liakhovetski [Mon, 30 Jul 2012 19:28:27 +0000 (21:28 +0200)]
dmaengine: shdma: restore partial transfer calculation

The recent shdma driver split has mistakenly removed support for partial
DMA transfer size calculation on forced termination. This patch restores
it.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: Vinod Koul <vinod.koul@linux.intel.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
12 years agoMerge tag 'irqdomain-for-linus' of git://git.secretlab.ca/git/linux-2.6
Linus Torvalds [Wed, 1 Aug 2012 03:44:03 +0000 (20:44 -0700)]
Merge tag 'irqdomain-for-linus' of git://git.secretlab.ca/git/linux-2.6

Pull irqdomain changes from Grant Likely:
 "Round of refactoring and enhancements to irq_domain infrastructure.
  This series starts the process of simplifying irqdomain.  The ultimate
  goal is to merge LEGACY, LINEAR and TREE mappings into a single
  system, but had to back off from that after some last minute bugs.
  Instead it mainly reorganizes the code and ensures that the reverse
  map gets populated when the irq is mapped instead of the first time it
  is looked up.

  Merging of the irq_domain types is deferred to v3.7

  In other news, this series adds helpers for creating static mappings
  on a linear or tree mapping."

* tag 'irqdomain-for-linus' of git://git.secretlab.ca/git/linux-2.6:
  irqdomain: Improve diagnostics when a domain mapping fails
  irqdomain: eliminate slow-path revmap lookups
  irqdomain: Fix irq_create_direct_mapping() to test irq_domain type.
  irqdomain: Eliminate dedicated radix lookup functions
  irqdomain: Support for static IRQ mapping and association.
  irqdomain: Always update revmap when setting up a virq
  irqdomain: Split disassociating code into separate function
  irq_domain: correct a minor wrong comment for linear revmap
  irq_domain: Standardise legacy/linear domain selection
  irqdomain: Make ops->map hook optional
  irqdomain: Remove unnecessary test for IRQ_DOMAIN_MAP_LEGACY
  irqdomain: Simple NUMA awareness.
  devicetree: add helper inline for retrieving a node's full name

12 years agox86: OLPC: move s/r-related EC cmds to EC driver
Andres Salomon [Tue, 17 Jul 2012 08:26:10 +0000 (01:26 -0700)]
x86: OLPC: move s/r-related EC cmds to EC driver

The new EC driver calls platform-specific suspend and resume hooks; run
XO-1-specific EC commands from there, rather than deep in s/r code.  If we
attempt to run EC commands after the new EC driver has suspended, it is
refused by the ec->suspended checks.

Signed-off-by: Andres Salomon <dilinger@queued.net>
Acked-by: Paul Fox <pgf@laptop.org>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
12 years agoPlatform: OLPC: move global variables into priv struct
Andres Salomon [Sat, 14 Jul 2012 00:10:45 +0000 (17:10 -0700)]
Platform: OLPC: move global variables into priv struct

Populate olpc_ec_priv with variables that were previously global.  This
makes things a tad bit clearer, IMO.

Signed-off-by: Andres Salomon <dilinger@queued.net>
Acked-by: Paul Fox <pgf@laptop.org>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
12 years agoPlatform: OLPC: move debugfs support from x86 EC driver
Andres Salomon [Fri, 13 Jul 2012 03:45:14 +0000 (20:45 -0700)]
Platform: OLPC: move debugfs support from x86 EC driver

There's nothing about the debugfs interface for the EC driver that is
architecture-specific, so move it into the arch-independent driver.

The code is mostly unchanged with the exception of renamed variables, coding
style changes, and API updates.

Signed-off-by: Andres Salomon <dilinger@queued.net>
Acked-by: Paul Fox <pgf@laptop.org>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
12 years agox86: OLPC: switch over to using new EC driver on x86
Andres Salomon [Fri, 13 Jul 2012 00:57:28 +0000 (17:57 -0700)]
x86: OLPC: switch over to using new EC driver on x86

This uses the new EC driver framework in drivers/platform/olpc.  The
XO-1 and XO-1.5-specific code is still in arch/x86, but the generic stuff
(including a new workqueue; no more running EC commands with IRQs disabled!)
can be shared with other architectures.

Signed-off-by: Andres Salomon <dilinger@queued.net>
Acked-by: Paul Fox <pgf@laptop.org>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
12 years agoPlatform: OLPC: add a suspended flag to the EC driver
Andres Salomon [Fri, 13 Jul 2012 22:54:25 +0000 (15:54 -0700)]
Platform: OLPC: add a suspended flag to the EC driver

A problem we've noticed on XO-1.75 is when we suspend in the middle of
an EC command.  Don't allow that.

In the process, create a private object for the generic EC driver to use;
we have a framework for passing around a struct, use that rather than a
proliferation of global variables.

Signed-off-by: Andres Salomon <dilinger@queued.net>
Acked-by: Paul Fox <pgf@laptop.org>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
12 years agoPlatform: OLPC: turn EC driver into a platform_driver
Andres Salomon [Fri, 13 Jul 2012 12:57:17 +0000 (05:57 -0700)]
Platform: OLPC: turn EC driver into a platform_driver

The 1.75-based OLPC EC driver already does this; let's do it for all EC
drivers.  This gives us nice suspend/resume hooks, amongst other things.

We want to run the EC's suspend hooks later than other drivers (which may
be setting wakeup masks or be running EC commands).  We also want to run
the EC's resume hooks earlier than other drivers (which may want to run EC
commands).

Signed-off-by: Andres Salomon <dilinger@queued.net>
Acked-by: Paul Fox <pgf@laptop.org>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
12 years agoPlatform: OLPC: allow EC cmd to be overridden, and create a workqueue to call it
Andres Salomon [Thu, 12 Jul 2012 00:40:25 +0000 (17:40 -0700)]
Platform: OLPC: allow EC cmd to be overridden, and create a workqueue to call it

This provides a new API allows different OLPC architectures to override the
EC driver.  x86 and ARM OLPC machines use completely different EC backends.

The olpc_ec_cmd is synchronous, and waits for the workqueue to send the
command to the EC.  Multiple callers can run olpc_ec_cmd() at once, and
they will by serialized and sleep while only one executes on the EC at a time.

We don't provide an unregister function, as that doesn't make sense within
the context of OLPC machines - there's only ever 1 EC, it's critical to
functionality, and it certainly not hotpluggable.

Signed-off-by: Andres Salomon <dilinger@queued.net>
Acked-by: Paul Fox <pgf@laptop.org>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>