Commit Graph

10615 Commits

Author SHA1 Message Date
David S. Miller b2d3298e09 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-03-09 14:34:20 -08:00
Greg Kroah-Hartman 263a5c8e16 Merge 3.3-rc6 into driver-core-next
This was done to resolve a conflict in the drivers/base/cpu.c file.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-03-09 12:35:53 -08:00
Linus Torvalds ee0849c911 Minor bug fixes and documentation updates for v3.3-rc5
Fixes up a duplicate #include, adds an empty implementation of
 of_find_compatible_node() and make git ignore .dtb files.  And fix
 up bus name on OF described PHYs.  Nothing exciting here.
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Merge tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux-2.6

Pull minor devicetree bug fixes and documentation updates from Grant Likely:
 "Fixes up a duplicate #include, adds an empty implementation of
  of_find_compatible_node() and make git ignore .dtb files.  And fix up
  bus name on OF described PHYs.  Nothing exciting here."

* tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux-2.6:
  doc: dt: Fix broken reference in gpio-leds documentation
  of/mdio: fix fixed link bus name
  of/fdt.c: asm/setup.h included twice
  of: add picochip vendor prefix
  dt: add empty of_find_compatible_node function
  ARM: devicetree: Add .dtb files to arch/arm/boot/.gitignore
2012-03-08 17:24:27 -08:00
Linus Torvalds 42a6c7ef3b Four patches since v3.3-rc6:
1bd612a hwmon: (jc42) Add support for AT30TS00, TS3000GB2, TSE2002GB2, and MCP9804
 7ad6307 hwmon: (zl6100) Maintain delay parameter in driver instance data
 7cb3c44 hwmon: (pmbus_core) Fix maximum number of POUT alarm attributes
 4de8612 hwmon: (jc42) Add support for ST Microelectronics STTS2002 and STTS3000
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Merge tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull four hwmon patches from Guenter Roeck

* tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (jc42) Add support for AT30TS00, TS3000GB2, TSE2002GB2, and MCP9804
  hwmon: (zl6100) Maintain delay parameter in driver instance data
  hwmon: (pmbus_core) Fix maximum number of POUT alarm attributes
  hwmon: (jc42) Add support for ST Microelectronics STTS2002 and STTS3000
2012-03-08 17:22:54 -08:00
Olof Johansson a58f67e70a Merge branch 'dt' of git://github.com/hzhuang1/linux into next/dt
* 'dt' of git://github.com/hzhuang1/linux: (6 commits)
  Document: devicetree: add OF documents for arch-mmp
  ARM: dts: append DTS file of pxa168
  ARM: mmp: append OF support on pxa168
  ARM: mmp: enable rtc clk in pxa168
  i2c: pxa: add OF support
  serial: pxa: add OF support

  (plus update to v3.3-rc6)
2012-03-08 09:27:07 -08:00
Hans Verkuil 1b1301e67b [media] Fix small DocBook typo
Here is a small patch which fixes a DocBook mistake in the decoder_cmd
documentation.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-03-08 12:13:18 -03:00
Mauro Carvalho Chehab 99025937bc [media] Documentation: Update some card lists
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-03-08 11:01:36 -03:00
Kyle Strickland 25fa207157 [media] Add support for KWorld PC150-U ATSC hybrid tuner card
[mchehab@redhat.com: CodingStyle fixes]
Signed-off-by: Kyle Strickland <kyle@kyle.strickland.name>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-03-08 11:01:25 -03:00
Jan Kiszka 07700a94b0 KVM: Allow host IRQ sharing for assigned PCI 2.3 devices
PCI 2.3 allows to generically disable IRQ sources at device level. This
enables us to share legacy IRQs of such devices with other host devices
when passing them to a guest.

The new IRQ sharing feature introduced here is optional, user space has
to request it explicitly. Moreover, user space can inform us about its
view of PCI_COMMAND_INTX_DISABLE so that we can avoid unmasking the
interrupt and signaling it if the guest masked it via the virtualized
PCI config space.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Acked-by: Alex Williamson <alex.williamson@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2012-03-08 14:11:36 +02:00
Jean-François Moine dd32f98120 [media] gspca - pac7302: Add new webcam 06f8:301b
Signed-off-by: Jean-François Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-03-08 07:57:35 -03:00
Linus Walleij ffbbdd2132 spi: create a message queueing infrastructure
This rips the message queue in the PL022 driver out and pushes
it into (optional) common infrastructure. Drivers that want to
use the message pumping thread will need to define the new
per-messags transfer methods and leave the deprecated transfer()
method as NULL.

Most of the design is described in the documentation changes that
are included in this patch.

Since there is a queue that need to be stopped when the system
is suspending/resuming, two new calls are implemented for the
device drivers to call in their suspend()/resume() functions:
spi_master_suspend() and spi_master_resume().

ChangeLog v1->v2:
- Remove Kconfig entry and do not make the queue support optional
  at all, instead be more agressive and have it as part of the
  compulsory infrastructure.
- If the .transfer() method is implemented, delete print a small
  deprecation notice and do not start the transfer pump.
- Fix a bitrotted comment.
ChangeLog v2->v3:
- Fix up a problematic sequence courtesy of Chris Blair.
- Stop rather than destroy the queue on suspend() courtesy of
  Chris Blair.

Signed-off-by: Chris Blair <chris.blair@stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-03-07 19:19:48 -07:00
Olof Johansson 6458acb5a3 Fixing and cleaning up several remoteproc and rpmsg issues.
In addition, remoteproc's resource table is converted to a collection
 of type-value members, instead of a rigid array of homogeneous structs.
 
 This enables remoteproc to support registration of generic virtio devices,
 and not only a single VIRTIO_ID_RPMSG virtio device.
 
 But perhaps more importantly, the resource table overhaul makes it possible
 to easily extend it in the future without breaking older images (simply by
 defining a new member type, while continuing to support older types).
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Merge tag 'rpmsg-fixes-and-more-for-3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/ohad/remoteproc into next/rpmsg

Fixing and cleaning up several remoteproc and rpmsg issues.

In addition, remoteproc's resource table is converted to a collection
of type-value members, instead of a rigid array of homogeneous structs.

This enables remoteproc to support registration of generic virtio devices,
and not only a single VIRTIO_ID_RPMSG virtio device.

But perhaps more importantly, the resource table overhaul makes it possible
to easily extend it in the future without breaking older images (simply by
defining a new member type, while continuing to support older types).

* tag 'rpmsg-fixes-and-more-for-3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/ohad/remoteproc:
  remoteproc: cleanup resource table parsing paths
  remoteproc: remove the hardcoded vring alignment
  remoteproc/omap: remove the mbox_callback limitation
  remoteproc: remove the single rpmsg vdev limitation
  remoteproc: safer boot/shutdown order
  remoteproc: remoteproc_rpmsg -> remoteproc_virtio
  remoteproc: resource table overhaul
  rpmsg: fix build warning when dma_addr_t is 64-bit
  rpmsg: fix published buffer length in rpmsg_recv_done
  rpmsg: validate incoming message length before propagating
  rpmsg: fix name service endpoint leak
  remoteproc/omap: two Kconfig fixes
  remoteproc: make sure we're parsing a 32bit firmware
2012-03-07 15:21:12 -08:00
Simon Glass d5dfcc91b1 arm: tegra: dts: Support host/device selection and legacy mode
Some USB ports can support host and device operation. We add the dr_mode
property (as found in Freescale) for this.

One USB port has a 'legacy mode', left over from the days of pre-Tegra
chips. I don't believe this is actually used, except that we must know
to turn this off in the driver.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2012-03-07 14:36:44 -08:00
Zhiwu Song 979b907fa5 i2c: add CSR SiRFprimaII on-chip I2C controllers driver
SiRFprimaII is the latest generation application processor from CSR’s
multi-function SoC product family.
The SoC support codes are in arch/arm/mach-prima2 from Linux mainline
3.0.
There are two I2C controllers on primaII, features include:
* Two I2C controller modules are on chip
* RISC I/O bus read write register
* Up to 16 bytes data buffer for issuing commands and writing data
  at the same time
* Up to 16 commands, and receiving read data 16 bytes at a time
* Error INT report (ACK check)
* No-ACK bus protocols (SCCB bus protocols)

Signed-off-by: Zhiwu Song <Zhiwu.Song@csr.com>
Signed-off-by: Xiangzhen Ye <Xiangzhen.Ye@csr.com>
Signed-off-by: Yuping Luo <Yuping.Luo@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
2012-03-07 19:05:04 +01:00
Guenter Roeck 1bd612a258 hwmon: (jc42) Add support for AT30TS00, TS3000GB2, TSE2002GB2, and MCP9804
Also update IDT datasheet locations.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Cc: stable@vger.kernel.org # 3.0+
Acked-by: Jean Delvare <khali@linux-fr.org>
2012-03-07 09:48:44 -08:00
Jean Delvare 4de86126a7 hwmon: (jc42) Add support for ST Microelectronics STTS2002 and STTS3000
These are fully compatible with Jedec JC 42.4 as far as I can see.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Guenter Roeck <guenter.roeck@ericsson.com>
Cc: stable@vger.kernel.org # 3.0+
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
2012-03-07 09:48:21 -08:00
Linus Torvalds d09b3c9618 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov: "Just a few driver fixups,
nothing exciting."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: wacom - fix 3rd-gen Bamboo MT when 4+ fingers are in use
  Input: twl4030-vibra - use proper guard for PM methods
  Input: evdev - fix variable initialisation
  Input: wacom - add missing LEDS_CLASS to Kconfig
  Input: ALPS - fix touchpad detection when buttons are pressed
2012-03-07 08:31:31 -08:00
Masanari Iida 40e47125e6 Documentation: Fix multiple typo in Documentation
Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Acked-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-03-07 16:08:24 +01:00
Haojian Zhuang 46e446db4f Document: devicetree: add OF documents for arch-mmp
Add OF support in Document/devicetree directory.

Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
2012-03-07 09:32:52 +08:00
Ohad Ben-Cohen 7a18694162 remoteproc: remove the single rpmsg vdev limitation
Now that the resource table supports publishing a virtio device
in a single resource entry, firmware images can start supporting
more than a single vdev.

This patch removes the single vdev limitation of the remoteproc
framework so multi-vdev firmwares can be leveraged: VDEV resource
entries are parsed when the rproc is registered, and as a result
their vrings are set up and the virtio devices are registered
(and they go away when the rproc goes away).

Moreover, we no longer only support VIRTIO_ID_RPMSG vdevs; any
virtio device type goes now. As a result, there's no more any
rpmsg-specific APIs or code in remoteproc: it all becomes generic
virtio handling.

Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Cc: Brian Swetland <swetland@google.com>
Cc: Iliyan Malchev <malchev@google.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Mark Grosen <mgrosen@ti.com>
Cc: John Williams <john.williams@petalogix.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Loic PALLARDY <loic.pallardy@stericsson.com>
Cc: Ludovic BARRE <ludovic.barre@stericsson.com>
Cc: Omar Ramirez Luna <omar.luna@linaro.org>
Cc: Guzman Lugo Fernando <fernando.lugo@ti.com>
Cc: Anna Suman <s-anna@ti.com>
Cc: Clark Rob <rob@ti.com>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: Saravana Kannan <skannan@codeaurora.org>
Cc: David Brown <davidb@codeaurora.org>
Cc: Kieran Bingham <kieranbingham@gmail.com>
Cc: Tony Lindgren <tony@atomide.com>
2012-03-06 19:14:12 +02:00
Ohad Ben-Cohen fd2c15ec1d remoteproc: resource table overhaul
The resource table is an array of 'struct fw_resource' members, where
each resource entry is expressed as a single member of that array.

This approach got us this far, but it has a few drawbacks:

1. Different resource entries end up overloading the same members of 'struct
   fw_resource' with different meanings. The resulting code is error prone
   and hard to read and maintain.

2. It's impossible to extend 'struct fw_resource' without breaking the
   existing firmware images (and we already want to: we can't introduce the
   new virito device resource entry with the current scheme).

3. It doesn't scale: 'struct fw_resource' must be as big as the largest
   resource entry type. As a result, smaller resource entries end up
   utilizing only small part of it.

This is fixed by defining a dedicated structure for every resource type,
and then converting the resource table to a list of type-value members.
Instead of a rigid array of homogeneous structs, the resource table
is turned into a collection of heterogeneous structures.

This way:
1. Resource entries consume exactly the amount of bytes they need.
2. It's easy to extend: just create a new resource entry structure, and assign
   it a new type.
3. The code is easier to read and maintain: the structures' members names are
   meaningful.

While we're at it, this patch has several other resource table changes:
1. The resource table gains a simple header which contains the
   number of entries in the table and their offsets within the table. This
   makes the parsing code simpler and easier to read.
2. A version member is added to the resource table. Should we change the
   format again, we'll bump up this version to prevent breakage with
   existing firmware images.
3. The VRING and VIRTIO_DEV resource entries are combined to a single
   VDEV entry. This paves the way to supporting multiple VDEV entries.
4. Since we don't really support 64-bit rprocs yet, convert two stray u64
   members to u32.

Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Cc: Brian Swetland <swetland@google.com>
Cc: Iliyan Malchev <malchev@google.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Mark Grosen <mgrosen@ti.com>
Cc: John Williams <john.williams@petalogix.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Loic PALLARDY <loic.pallardy@stericsson.com>
Cc: Ludovic BARRE <ludovic.barre@stericsson.com>
Cc: Omar Ramirez Luna <omar.luna@linaro.org>
Cc: Guzman Lugo Fernando <fernando.lugo@ti.com>
Cc: Anna Suman <s-anna@ti.com>
Cc: Clark Rob <rob@ti.com>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: Saravana Kannan <skannan@codeaurora.org>
Cc: David Brown <davidb@codeaurora.org>
Cc: Kieran Bingham <kieranbingham@gmail.com>
Cc: Tony Lindgren <tony@atomide.com>
2012-03-06 19:13:39 +02:00
Richard Zhao 9d5ef2663f ASoC: fsl: add dt support for imx-audmux
It adds device tree probe support for imx-audmux driver.

Signed-off-by: Richard Zhao <richard.zhao@linaro.org>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-06 12:44:21 +00:00
David S. Miller f6a1ad4295 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
	drivers/net/vmxnet3/vmxnet3_drv.c

Small vmxnet3 conflict with header size bug fix in 'net'.

Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-05 21:16:26 -05:00
Matthew Garrett c22ab33290 kmsg_dump: don't run on non-error paths by default
Since commit 04c6862c05 ("kmsg_dump: add kmsg_dump() calls to the
reboot, halt, poweroff and emergency_restart paths"), kmsg_dump() gets
run on normal paths including poweroff and reboot.

This is less than ideal given pstore implementations that can only
represent single backtraces, since a reboot may overwrite a stored oops
before it's been picked up by userspace.  In addition, some pstore
backends may have low performance and provide a significant delay in
reboot as a result.

This patch adds a printk.always_kmsg_dump kernel parameter (which can also
be changed from userspace).  Without it, the code will only be run on
failure paths rather than on normal paths.  The option can be enabled in
environments where there's a desire to attempt to audit whether or not a
reboot was cleanly requested or not.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Acked-by: Seiji Aguchi <seiji.aguchi@hds.com>
Cc: Seiji Aguchi <seiji.aguchi@hds.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Marco Stornelli <marco.stornelli@gmail.com>
Cc: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Vivek Goyal <vgoyal@redhat.com>
Cc: Don Zickus <dzickus@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-03-05 15:49:42 -08:00
Benoit Cousson 384ebe1c28 gpio/omap: Add DT support to GPIO driver
Adapt the GPIO driver to retrieve information from a DT file.

Allocate the irq_base dynamically and rename bank->virtual_irq_start
to bank->irq_base.
Change irq_base type to int instead of u16 to match irq_alloc_descs
output.

Add documentation for GPIO properties specific to OMAP.

Signed-off-by: Benoit Cousson <b-cousson@ti.com>
Cc: Tarun Kanti DebBarma <tarun.kanti@ti.com>
Acked-by: Rob Herring <rob.herring@calxeda.com>
2012-03-05 23:02:53 +01:00
Arnd Bergmann 3a70b7e05f Merge branch 'depends/irqdomain' into next/drivers
This is needed in order for the tegra/soc-drivers branch
to work.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-03-05 16:58:11 +00:00
Laxman Dewangan 3d2ddfdcf0 Documentation: gpio: Add details of open-drain/source configuration
Adding details of open drain(open collector) and open source
(open emitter) configuration of the gpio so that client can
set the pin as open drain at the time of gpio request.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Reviwed-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-03-05 07:49:44 -07:00
Scott Wood 54f65795c8 KVM: PPC: refer to paravirt docs in header file
Instead of keeping separate copies of struct kvm_vcpu_arch_shared (one in
the code, one in the docs) that inevitably fail to be kept in sync
(already sr[] is missing from the doc version), just point to the header
file as the source of documentation on the contents of the magic page.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Acked-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Avi Kivity <avi@redhat.com>
2012-03-05 14:52:41 +02:00
Alexander Graf 1022fc3d3b KVM: PPC: Add support for explicit HIOR setting
Until now, we always set HIOR based on the PVR, but this is just wrong.
Instead, we should be setting HIOR explicitly, so user space can decide
what the initial HIOR value is - just like on real hardware.

We keep the old PVR based way around for backwards compatibility, but
once user space uses the SET_ONE_REG based method, we drop the PVR logic.

Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Avi Kivity <avi@redhat.com>
2012-03-05 14:52:41 +02:00
Alexander Graf e24ed81fed KVM: PPC: Add generic single register ioctls
Right now we transfer a static struct every time we want to get or set
registers. Unfortunately, over time we realize that there are more of
these than we thought of before and the extensibility and flexibility of
transferring a full struct every time is limited.

So this is a new approach to the problem. With these new ioctls, we can
get and set a single register that is identified by an ID. This allows for
very precise and limited transmittal of data. When we later realize that
it's a better idea to shove over multiple registers at once, we can reuse
most of the infrastructure and simply implement a GET_MANY_REGS / SET_MANY_REGS
interface.

Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Avi Kivity <avi@redhat.com>
2012-03-05 14:52:40 +02:00
Scott Wood dc83b8bc02 KVM: PPC: e500: MMU API
This implements a shared-memory API for giving host userspace access to
the guest's TLB.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Avi Kivity <avi@redhat.com>
2012-03-05 14:52:24 +02:00
Christian Borntraeger b9e5dc8d45 KVM: provide synchronous registers in kvm_run
On some cpus the overhead for virtualization instructions is in the same
range as a system call. Having to call multiple ioctls to get set registers
will make certain userspace handled exits more expensive than necessary.
Lets provide a section in kvm_run that works as a shared save area
for guest registers.
We also provide two 64bit flags fields (architecture specific), that will
specify
1. which parts of these fields are valid.
2. which registers were modified by userspace

Each bit for these flag fields will define a group of registers (like
general purpose) or a single register.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2012-03-05 14:52:22 +02:00
Carsten Otte ccc7910fe5 KVM: s390: ucontrol: interface to inject faults on a vcpu page table
This patch allows the user to fault in pages on a virtual cpus
address space for user controlled virtual machines. Typically this
is superfluous because userspace can just create a mapping and
let the kernel's page fault logic take are of it. There is one
exception: SIE won't start if the lowcore is not present. Normally
the kernel takes care of this [handle_validity() in
arch/s390/kvm/intercept.c] but since the kernel does not handle
intercepts for user controlled virtual machines, userspace needs to
be able to handle this condition.

Signed-off-by: Carsten Otte <cotte@de.ibm.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2012-03-05 14:52:20 +02:00
Carsten Otte 5b1c1493af KVM: s390: ucontrol: export SIE control block to user
This patch exports the s390 SIE hardware control block to userspace
via the mapping of the vcpu file descriptor. In order to do so,
a new arch callback named kvm_arch_vcpu_fault  is introduced for all
architectures. It allows to map architecture specific pages.

Signed-off-by: Carsten Otte <cotte@de.ibm.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2012-03-05 14:52:19 +02:00
Carsten Otte e168bf8de3 KVM: s390: ucontrol: export page faults to user
This patch introduces a new exit reason in the kvm_run structure
named KVM_EXIT_S390_UCONTROL. This exit indicates, that a virtual cpu
has regognized a fault on the host page table. The idea is that
userspace can handle this fault by mapping memory at the fault
location into the cpu's address space and then continue to run the
virtual cpu.

Signed-off-by: Carsten Otte <cotte@de.ibm.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2012-03-05 14:52:19 +02:00
Carsten Otte 27e0393f15 KVM: s390: ucontrol: per vcpu address spaces
This patch introduces two ioctls for virtual cpus, that are only
valid for kernel virtual machines that are controlled by userspace.
Each virtual cpu has its individual address space in this mode of
operation, and each address space is backed by the gmap
implementation just like the address space for regular KVM guests.
KVM_S390_UCAS_MAP allows to map a part of the user's virtual address
space to the vcpu. Starting offset and length in both the user and
the vcpu address space need to be aligned to 1M.
KVM_S390_UCAS_UNMAP can be used to unmap a range of memory from a
virtual cpu in a similar way.

Signed-off-by: Carsten Otte <cotte@de.ibm.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2012-03-05 14:52:18 +02:00
Carsten Otte e08b963716 KVM: s390: add parameter for KVM_CREATE_VM
This patch introduces a new config option for user controlled kernel
virtual machines. It introduces a parameter to KVM_CREATE_VM that
allows to set bits that alter the capabilities of the newly created
virtual machine.
The parameter is passed to kvm_arch_init_vm for all architectures.
The only valid modifier bit for now is KVM_VM_S390_UCONTROL.
This requires CAP_SYS_ADMIN privileges and creates a user controlled
virtual machine on s390 architectures.

Signed-off-by: Carsten Otte <cotte@de.ibm.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2012-03-05 14:52:18 +02:00
Stephen Warren 1e2082b520 pinctrl: enhance mapping table to support pin config operations
The pinctrl mapping table can now contain entries to:
* Set the mux function of a pin group
* Apply a set of pin config options to a pin or a group

This allows pinctrl_select_state() to apply pin configs settings as well
as mux settings.

v3: Fix find_pinctrl() to iterate over the correct list.
   s/_MUX_CONFIGS_/_CONFIGS_/ in mapping table macros.
   Fix documentation to use correct mapping table macro.
v2: Added numerous extra PIN_MAP_*() special-case macros.
   Fixed kerneldoc typo. Delete pinctrl_get_pin_id() and
   replace it with pin_get_from_name(). Various minor fixes.
   Updates due to rebase.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Dong Aisheng <dong.aisheng@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-03-05 11:25:11 +01:00
Stephen Warren 6e5e959dde pinctrl: API changes to support multiple states per device
The API model is changed from:

p = pinctrl_get(dev, "state1");
pinctrl_enable(p);
...
pinctrl_disable(p);
pinctrl_put(p);
p = pinctrl_get(dev, "state2");
pinctrl_enable(p);
...
pinctrl_disable(p);
pinctrl_put(p);

to this:

p = pinctrl_get(dev);
s1 = pinctrl_lookup_state(p, "state1");
s2 = pinctrl_lookup_state(p, "state2");
pinctrl_select_state(p, s1);
...
pinctrl_select_state(p, s2);
...
pinctrl_put(p);

This allows devices to directly transition between states without
disabling the pin controller programming and put()/get()ing the
configuration data each time. This model will also better suit pinconf
programming, which doesn't have a concept of "disable".

The special-case hogging feature of pin controllers is re-written to use
the regular APIs instead of special-case code. Hence, the pinmux-hogs
debugfs file is removed; see the top-level pinctrl-handles files for
equivalent data.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Dong Aisheng <dong.aisheng@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-03-05 11:22:59 +01:00
Ingo Molnar 737f24bda7 Merge branch 'perf/urgent' into perf/core
Conflicts:
	tools/perf/builtin-record.c
	tools/perf/builtin-top.c
	tools/perf/perf.h
	tools/perf/util/top.h

Merge reason: resolve these cherry-picking conflicts.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2012-03-05 09:20:08 +01:00
Paul Mackerras 4b32da2bcf ppp: Replace uses of <linux/if_ppp.h> with <linux/ppp-ioctl.h>
Since all that include/linux/if_ppp.h does is #include <linux/ppp-ioctl.h>,
this replaces the occurrences of #include <linux/if_ppp.h> with
#include <linux/ppp-ioctl.h>.

It also corrects an error in Documentation/networking/l2tp.txt, where
it referenced include/linux/if_ppp.h as the source of some definitions
that are actually now defined in include/linux/if_pppol2tp.h.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-04 20:41:38 -05:00
Paul Mackerras bf7daebb9f ppp: Move ioctl definitions from if_ppp.h to new ppp-ioctl.h
This moves the definitions of the ioctls, constants and structures
relating to the ppp_generic interface to userspace out from if_ppp.h
to a new file, ppp-ioctl.h.  The new file has my copyright since I
designed and implemented the ppp_generic interface in the late 1990s.
None of the contents of this file comes from the original if_ppp.h
published by Carnegie Mellon University.

Of the remainder of if_ppp.h, only the PPP_MTU definition was being
used, and this replaces the uses of it with PPP_MRU (which is identical).
Therefore, this replaces the entire file with the single line

#include <linux/ppp-ioctl.h>

which clearly doesn't contain any CMU code.  Thus I have removed the
CMU copyright notice with its problematic advertising clause, and in
fact since it's only one trivial line I have not added any other
copyright notice.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-04 20:41:38 -05:00
Rafael J. Wysocki 48ed000316 Merge branch 'pm-domains'
* pm-domains:
  PM / Domains: Fix include for PM_GENERIC_DOMAINS=n case
  PM / Domains: Provide a dummy dev_gpd_data() when generic domains are not used
  PM / Domains: Run late/early device suspend callbacks at the right time
  ARM: EXYNOS: Hook up power domains to generic power domain infrastructure
  PM / Domains: Add OF support
2012-03-04 23:11:20 +01:00
Rafael J. Wysocki 643161ace2 Merge branch 'pm-sleep'
* pm-sleep:
  PM / Freezer: Remove references to TIF_FREEZE in comments
  PM / Sleep: Add more wakeup source initialization routines
  PM / Hibernate: Enable usermodehelpers in hibernate() error path
  PM / Sleep: Make __pm_stay_awake() delete wakeup source timers
  PM / Sleep: Fix race conditions related to wakeup source timer function
  PM / Sleep: Fix possible infinite loop during wakeup source destruction
  PM / Hibernate: print physical addresses consistently with other parts of kernel
  PM: Add comment describing relationships between PM callbacks to pm.h
  PM / Sleep: Drop suspend_stats_update()
  PM / Sleep: Make enter_state() in kernel/power/suspend.c static
  PM / Sleep: Unify kerneldoc comments in kernel/power/suspend.c
  PM / Sleep: Remove unnecessary label from suspend_freeze_processes()
  PM / Sleep: Do not check wakeup too often in try_to_freeze_tasks()
  PM / Sleep: Initialize wakeup source locks in wakeup_source_add()
  PM / Hibernate: Refactor and simplify freezer_test_done
  PM / Hibernate: Thaw kernel threads in hibernation_snapshot() in error/test path
  PM / Freezer / Docs: Document the beauty of freeze/thaw semantics
  PM / Suspend: Avoid code duplication in suspend statistics update
  PM / Sleep: Introduce generic callbacks for new device PM phases
  PM / Sleep: Introduce "late suspend" and "early resume" of devices
2012-03-04 23:11:14 +01:00
Arnd Bergmann 7cb7f82611 Merge tag 'tegra-soc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/olof/tegra into tegra/soc-drivers
Tegra SoC driver support.

Some device tree conversions, some new drivers. and a fix for an issue
introduced in Grant Likely's irq_domain conversion in his tree. Because
of that, this branch depends on his branch to build (but not to merge):

git://git.secretlab.ca/git/linux-2.6.git irqdomain/next

* tag 'tegra-soc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/olof/tegra: (34 commits)
  ARM: tegra: uncompress.h: Don't depend on kernel headers
  gpio: tegra: Fix build issue due to irq_domain rework.
  ARM: tegra: Remove duplicate PMU interrupt inversion code
  ARM: tegra: Add a simple PMC driver
  ARM: tegra: dma: not required to move requestor when stopping.
  ARM: tegra: Fix EMC pdata initialization from registers
  gpio: tegra: Parameterize the number of banks
  gpio: tegra: Dynamically allocate IRQ base, and support DT
  ARM: tegra: Remove use of TEGRA_GPIO_TO_IRQ
  ARM: tegra: Pass uncompress.h UART selection to DEBUG_LL
  ARM: tegra: uncompress.h: Choose a UART at runtime
  ARM: tegra: uncompress.h: Store UART address in a variable
  ARM: tegra: Introduce define DEBUG_UART_SHIFT
  ARM: tegra: Support Tegra30 in decompressor UART setup
  ARM: tegra: Pause DMA when reading transfer count
  ARM: tegra: emc: device tree support
  ARM: tegra: emc: convert tegra2_emc to a platform driver
  ARM: tegra: fuse: add bct strapping reading
  ARM: tegra: fuse: add functions to access chip revision
  ARM: tegra: fuse: use apbio dma for register access
  ...

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-03-04 21:03:30 +00:00
Arnd Bergmann 4c6c826b22 Merge tag 'tegra-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/olof/tegra into tegra/dt
Device tree updates for tegra. Various development, including a handful
of additions to the tegra30 device trees.

* tag 'tegra-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/olof/tegra:
  ASoC: DT: Add digital microphone binding to PAZ00 board.
  ARM: dt: Add ARM PMU to tegra*.dtsi
  ARM: dt: Add SD controller configuration to Tegra Cardhu
  ARM: dt: tegra: Enable headset autodetection on PAZ00 board.
  ARM: dt: tegra: Enable device tree audio codec on PAZ00 board.
  ARM: dt: Add binding for Tegra PMC
  ARM: dt: tegra: Enable audio on WM8903 boards, disable others
  ARM: dt: tegra: Add labels for I2S controllers
  ARM: dt: tegra: Modify I2S nodes to match binding
  ARM: dt: tegra: Add Tegra APB DMA device tree binding
  ARM: dt: tegra30.dtsi: Add extra GPIO interrupt
  ARM: dt: tegra30.dtsi: Reformat gpio's interrupts property
  dt: tegra gpio: Flesh out binding documentation
  ARM: tegra: seaboard: add EMC table to device tree
  ARM: tegra: emc: device tree bindings

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-03-04 20:54:04 +00:00
Shawn Guo 4bdd47997f ASoC: sgtl5000: rename device tree binding document
It moves and renames sgtl5000 device tree binding document to make
it aligned with other codecs.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-04 13:38:56 +00:00
Trond Myklebust 8aa0a410af Merge commit 'nfs-for-3.3-4' into nfs-for-next
Conflicts:
	fs/nfs/nfs4proc.c

Back-merge of the upstream kernel in order to fix a conflict with the
slotid type conversion and implementation id patches...
2012-03-03 15:05:56 -05:00
Stephen Warren 110e4ec5a1 pinctrl: assume map table entries can't have a NULL name field
pinctrl_register_mappings() already requires that every mapping table
entry have a non-NULL name field.

Logically, this makes sense too; drivers should always request a specific
named state so they know what they're getting. Relying on getting the
first mentioned state in the mapping table is error-prone, and a nasty
special case to implement, given that a given the mapping table may define
multiple states for a device.

Remove a small part of the documentation that talked about optionally
requesting a specific state; it's mandatory now.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Dong Aisheng <dong.aisheng@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-03-02 16:20:54 +01:00
Stephen Warren 46919ae63d pinctrl: introduce PINCTRL_STATE_DEFAULT, define hogs as that state
This provides a single centralized name for the default state.

Update PIN_MAP_* macros to use this state name, instead of requiring the
user to pass a state name in.

With this change, hog entries in the mapping table are defined as those
with state name PINCTRL_STATE_DEFAULT, i.e. all entries have the same
name. This interacts badly with the nested iteration over mapping table
entries in pinctrl_hog_maps() and pinctrl_hog_map() which would now
attempt to claim each hog mapping table entry multiple times. Replacing
the custom hog code with a simple pinctrl_get()/pinctrl_enable().

Update documentation and mapping tables to use this.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Dong Aisheng <dong.aisheng@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-03-02 16:18:24 +01:00
Arnd Bergmann fcd2a8e945 Merge branch 'features/imx27-dt' of git://git.pengutronix.de/git/imx/linux-2.6 into next/dt
* 'features/imx27-dt' of git://git.pengutronix.de/git/imx/linux-2.6:
  devicetree-bindings: Add documentation for i.MX generic boards
  ARM i.MX: Add phytec phycore-i.MX27 (aka pcm038) devicetree support
  ARM i.MX27: Add devicetree support
2012-03-02 14:46:47 +00:00
Arnd Bergmann 48b3b08e00 Merge branch 'at91-3.4-cleanup2+DT' of git://github.com/at91linux/linux-at91 into next/dt
* 'at91-3.4-cleanup2+DT' of git://github.com/at91linux/linux-at91: (22 commits)
  ARM: at91: at91sam9x5cm/dt: add leds support
  ARM: at91: usb_a9g20/dt: add gpio-keys support
  ARM: at91: at91sam9m10g45ek/dt: add gpio-keys support
  ARM: at91: at91sam9m10g45ek/dt: add leds support
  ARM: at91: usb_a9g20/dt: add leds support
  ARM: at91/pio: add new PIO3 features
  ARM: at91: add sam9_smc.o to at91sam9x5 build
  ARM: at91/tc/clocksource: Add 32 bit variant to Timer Counter
  ARM: at91/tc: add device tree support to atmel_tclib
  ARM: at91/tclib: take iomem size from resource
  ARM: at91/pit: add traces in case of error
  ARM: at91: pit add DT support
  ARM: at91: AIC and GPIO IRQ device tree initialization
  ARM: at91/board-dt: remove AIC irq domain from board file
  ARM: at91/gpio: remove the static specification of gpio_chip.base
  ARM: at91/gpio: add .to_irq gpio_chip handler
  ARM: at91/gpio: non-DT builds do not have gpio_chip.of_node field
  ARM: at91/gpio: add irqdomain and DT support
  ARM: at91/gpio: change comments and one variable name
  ARM/USB: at91/ohci-at91: remove the use of irq_to_gpio
  ...
2012-03-02 13:22:28 +00:00
Arnd Bergmann 6e1d521b9d Merge branches 'depends/irqdomain' and 'at91/base2+cleanup' into next/dt
These two branches are a dependency for the at91 device tree changes,
so we pull them in here. at91/base2+cleanup will get merged through
the arm-soc cleanup2 branch, while the irqdomain tree will be sent
by Grant before this one gets integrated.

Conflicts:
	drivers/rtc/rtc-at91sam9.c

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-03-02 13:22:19 +00:00
Weston Andros Adamson db8ac8ba87 NFSv4: Send implementation id with exchange_id
Send the nfs implementation id in EXCHANGE_ID requests unless the module
parameter nfs.send_implementation_id is 0.

This adds a CONFIG variable for the nii_domain that defaults to "kernel.org".

Signed-off-by: Weston Andros Adamson <dros@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-03-01 17:10:21 -05:00
Rafael J. Wysocki 6748dcc269 PCI / PCIe: Introduce command line option to disable ARI
There are PCIe devices on the market that report ARI support but
then fail to initialize correctly when ARI is actually used.  This
leads to situations in which kernels 2.6.34 and newer fail to handle
systems where the previous kernels worked without any apparent
problems.  Unfortunately, it is currently unknown how many such
devices are there.

For this reason, introduce a new kernel command line option,
pci=noari, allowing users to disable PCIe ARI altogether if they
see problems with PCIe device initialization.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2012-03-01 13:36:04 -08:00
Sylwester Nawrocki 1b741bc3db [media] s5p-fimc: Add driver documentation
Add short documentation providing the driver usage details.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-03-01 17:13:02 -03:00
Nicolas Ferre 582d5fbd4e ARM: at91/pio: add new PIO3 features
This patch adds the support for new PIO controller found on some
at91sam SOCs.
- more peripheral multiplexing
- more features to configure on a PIO (pull-down, Schmitt trigger, debouncer)
- support for several IRQ triggering features (type and polarity)

Support for those new features are retrieved from the device tree
compatibility string.

Debugfs at91_gpio file is updated to monitor configuration.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2012-03-01 13:38:50 +01:00
Nicolas Ferre 3a61a5dae4 ARM: at91/tc: add device tree support to atmel_tclib
Device tree support added to atmel_tclib: the generic Timer Counter
library. This is used by the clocksource/clockevent driver tcb_clksrc.

The current DT enabled platforms are also modified to use it:
- .dtsi files are modified to add Timer Counter Block entries
- alias are created to allow identification of each block
- clkdev lookup tables are added for clocks identification.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
2012-03-01 13:38:48 +01:00
Jean-Christophe PLAGNIOL-VILLARD 23fa648fd3 ARM: at91: pit add DT support
Retreive registers address and IRQ from device tree entry.
Called from at91_dt_init_irq() so that timers are up-n-running
when timers initialization will occur.

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
[nicolas.ferre@atmel.com: change error path and interrupts property handling]
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2012-03-01 13:38:36 +01:00
Nicolas Ferre 21f8187278 ARM: at91/gpio: add irqdomain and DT support
Add "legacy" type of irqdomain to preserve old-style numbering
and allow smooth transition for both DT and non-DT cases.

Original idea and code by Jean-Christophe Plagniol-Villard.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2012-03-01 13:29:01 +01:00
Nicolas Ferre e261501d05 ARM: at91/aic: add irq domain and device tree support
Add an irqdomain for the AIC interrupt controller.
The device tree support is mapping the registers and
is using the irq_domain_add_legacy() to manage hwirq
translation.
The documentation is describing the meaning of the
two cells required for using this "interrupt-controller"
in a device tree node.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2012-03-01 13:29:00 +01:00
Nicolas Ferre 89d4a1753b Merge branch 'irqdomain/next' of git://git.secretlab.ca/git/linux-2.6 2012-03-01 13:26:51 +01:00
Ingo Molnar 7e4d960993 Merge branch 'linus' into sched/core
Merge reason: we'll queue up dependent patches.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2012-03-01 10:26:43 +01:00
Stephen Warren 806d314325 pinctrl: re-order struct pinctrl_map
The lookup key in struct pinctrl_map is (.dev_name, .name). Re-order the
struct definition to put the lookup key fields first, and the result
values afterwards. To me at least, this slightly better reflects the
lookup process.

Update the documentation in a similar fashion.

Note: PIN_MAP*() macros aren't updated; I plan to update this once later
when enhancing the mapping table format to support pin config to reduce
churn.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Dong Aisheng <dong.aisheng@linaro.org>
[Rebased for cherry-picking]
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-02-29 19:10:55 +01:00
Arnd Bergmann 7eca30aef7 Merge branch 'at91-3.4-base2+cleanup' of git://github.com/at91linux/linux-at91 into at91/staging/base2+cleanup
* 'at91-3.4-base2+cleanup' of git://github.com/at91linux/linux-at91: (20 commits)
  ARM: at91: properly sort dtb files in Makefile.boot
  ARM: at91: add at91sam9g25ek.dts in Makefile.boot
  ARM: at91/board-dt: drop default console
  Atmel: move console default platform_device to serial driver
  ARM: at91: merge SRAM Memory banks thanks to mirroring
  ARM: at91: finally drop at91_sys_read/write
  ARM: at91/rtc-at91sam9: pass the GPBR to use via resources
  ARM: at91:rtc/rtc-at91sam9: ioremap register bank
  ARM: at91/rtc-at91sam9: each SoC can select the RTT device to use
  ARM: at91/PMC: make register base soc independent
  ARM: at91/PMC: move assignment out of printf
  ARM: at91/pm_slowclock: add runtime detection of memory contoller
  ARM: at91: make sdram/ddr register base soc independent
  ARM: at91: move at91rm9200 sdramc defines to at91rm9200_sdramc.h
  ARM: at91/pm_slowclock: function slow_clock() accepts parameters
  ARM: at91/pm_slowclock: rename register to named define
  ARM: at91/ST: remove not needed casts
  ARM: at91: make ST (System Timer) soc independent
  ARM: at91: make matrix register base soc independent
  ARM: at91/at91x40: remove use of at91_sys_read/write

Based on top of the at91/9x5, rmk/for-armsoc, at91/device-board,
at91/pm_cleanup and at91/base.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-02-29 12:03:08 +00:00
Sascha Hauer 6ad109fa3f devicetree-bindings: Add documentation for i.MX generic boards
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2012-02-29 09:16:50 +01:00
Sylwester Nawrocki 29fa0eedd4 [media] V4L: Add JPEG compression control class documentation
Add DocBook entries for the JPEG control class.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-02-28 18:54:06 -03:00
Grant Likely b3950d50cf Merge branch 'irqdomain/next' into gpio/next 2012-02-28 13:48:58 -06:00
Geunsik Lim 36519c9eee Doc: Update numastat.txt
The existing numactl website is no longer working.  Change website information
of numactl/libnuma utility.  And, Rearrange tab space for readability.

Signed-off-by: Geunsik Lim <geunsik.lim@samsung.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-02-28 16:05:06 +01:00
Michael Opdenacker 4ff162f079 Documentation: broken URL in libata.tmpl
The text for version 1.1 of the Open Sofware license doesn't seem
to be available anywhere on http://www.opensource.org/ any more.
Replace it with an URL on fedora.org.

Thanks to Randy Dunlap for his advise choosing the most
appropriate replacement URL.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-02-28 15:59:47 +01:00
Michael Opdenacker 96824f4bc1 Documentation: broken URL in filesystems.tmpl
Fix broken link in Documentation/filesystem, replacing
ftp://ftp.uk.linux.org/pub/linux/sct/fs/jfs/journal-design.ps.gz
by a URL on http://kernel.org

Thanks to Randy Dunlap for his advise on the best replacement
URL to use.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-02-28 15:56:09 +01:00
Leon Romanovsky 6334018f70 ASoC: DT: Update digital microphone binding documentation to PAZ00 board.
This patch updates device tree binding documentation to add digital
microphone to PAZ00 board.

Signed-off-by: Leon Romanovsky <leon@leon.nu>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-02-28 12:37:21 +00:00
Takashi Iwai a6f2fd557f ALSA: hda - Add position_fix=4 (COMBO) option
This patch adds a new position_fix option value, 4, as a combo mode
to use LPIB for playbacks and POSBUF for captures.  It's the way
recommended by Intel hardware guys.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-02-28 12:18:15 +01:00
Tobias Klauser 14cd3c15cf doc: dt: Fix broken reference in gpio-leds documentation
The gpios property is described in Documentation/devicetree/gpio.txt, so
reference this document.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
2012-02-27 10:28:04 -06:00
Jamie Iles 8ebf0232f8 of: add picochip vendor prefix
Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Jamie Iles <jamie@jamieiles.com>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
2012-02-27 10:07:56 -06:00
Arnd Bergmann 96a3eab338 Merge branch 'imx-cleanup' of git://git.pengutronix.de/git/imx/linux-2.6 into next/cleanup
* 'imx-cleanup' of git://git.pengutronix.de/git/imx/linux-2.6: (247 commits)
  ARM: Remove redundant ';' from avic_irq_set_priority()
  ARM: mx3: Let mx31 and mx35 share the same CCM header file
  ARM: plat-mxc: audmux-v1: Remove unneeded ifdef's

Update to v3.3-rc3

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-02-27 13:40:49 +00:00
Benoit Cousson 52fa212088 ARM: OMAP2/3: intc: Add DT support for TI interrupt controller
Add a function to initialize the OMAP2/3 interrupt controller (INTC)
using a device tree node.

This version take advantage of the new irq_domain_add_legacy API.

Replace some printk() with the proper pr_ macro.

Signed-off-by: Benoit Cousson <b-cousson@ti.com>
Cc: Tony Lindgren <tony@atomide.com>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
2012-02-27 10:33:18 +01:00
Yinghai Lu b55438fdd5 PCI: prepare pci=realloc for multiple options
Let the user could enable and disable with pci=realloc=on or pci=realloc=off

Also
1. move variable and functions near the place they are used.
2. change macro to function
3. change related functions and variable to static and _init
4. update parameter description accordingly.

This will let us add a config option to control default behavior, and
still allow the user to turn off automatic reallocation if it fails on
their platform until a permanent solution is found.

-v2: still honor pci=realloc, and treat it as pci=realloc=on
     also use enum instead of ...
-v3: update kernel-paramenters.txt according to Jesse.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2012-02-24 08:47:42 -08:00
Ben Greear 5e0c03c8cd net: Support RX-ALL feature flag.
This flag requests that network devices pass all
received frames up the stack, even ones with errors
such as invalid FCS (frame check sum).  This will
allow sniffers to see bad packets and perhaps
give the user some idea how to fix the problem.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-02-24 01:42:07 -08:00
Ben Greear 36eabda3d0 net: Support RXFCS feature flag.
When set on hardware that supports the feature,
this causes the Ethernet FCS to be appended
to the end of the skb.

Useful for sniffing packets.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-02-24 01:19:59 -08:00
Pawel Moll 8deed1786a ARM: vexpress: Add Device Tree support
This patch adds generic Versatile Express DT machine description,
Device Tree description for the motherboard and documentation for
the bindings.

Signed-off-by: Pawel Moll <pawel.moll@arm.com>
2012-02-24 09:18:19 +00:00
Akio Idehara 99c90ab31f Input: ALPS - fix touchpad detection when buttons are pressed
ALPS touchpad detection fails if some buttons of ALPS are pressed.
The reason is that the "E6" query response byte is different from
what is expected.

This was tested on a Toshiba Portege R500.

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Akio Idehara <zbe64533@gmail.com>
Tested-by: Seth Forshee <seth.forshee@canonical.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2012-02-24 00:46:45 -08:00
Jason Baron 1cfa60dc7d static keys: Add docs better explaining the whole 'struct static_key' mechanism
Add better documentation for static keys.

Signed-off-by: Jason Baron <jbaron@redhat.com>
Cc: rostedt@goodmis.org
Cc: mathieu.desnoyers@efficios.com
Cc: davem@davemloft.net
Cc: ddaney.cavm@gmail.com
Cc: a.p.zijlstra@chello.nl
Link: http://lkml.kernel.org/r/52570e566e5f1914f27b67e4eafb5781b8f9f9db.1329851692.git.jbaron@redhat.com
[ Added a 'Summary' section and rewrote it to explain static keys ]
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2012-02-24 09:12:19 +01:00
Stephen Warren 1681f5ae4c pinctrl: disallow map table entries with NULL dev_name field
Hog entries are mapping table entries with .ctrl_dev_name == .dev_name.
All other mapping table entries need .dev_name set so that they will
match some pinctrl_get() call. All extant PIN_MAP*() macros set
.dev_name.

So, there is no reason to allow mapping table entries without .dev_name
set. Update the code and documentation to disallow this.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Dong Aisheng <dong.aisheng@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-02-24 06:24:52 +01:00
MUNEDA Takahiro 7570a333d8 PCI: Add pcie_hp=nomsi to disable MSI/MSI-X for pciehp driver
Add a parameter to avoid using MSI/MSI-X for PCIe native hotplug; it's
known to be buggy on some platforms.

In my environment, while shutting down, following stack trace is shown
sometimes.

  irq 16: nobody cared (try booting with the "irqpoll" option)
  Pid: 1081, comm: reboot Not tainted 3.2.0 #1
  Call Trace:
   <IRQ>  [<ffffffff810cec1d>] __report_bad_irq+0x3d/0xe0
   [<ffffffff810cee1c>] note_interrupt+0x15c/0x210
   [<ffffffff810cc485>] handle_irq_event_percpu+0xb5/0x210
   [<ffffffff810cc621>] handle_irq_event+0x41/0x70
   [<ffffffff810cf675>] handle_fasteoi_irq+0x55/0xc0
   [<ffffffff81015356>] handle_irq+0x46/0xb0
   [<ffffffff814fbe9d>] do_IRQ+0x5d/0xe0
   [<ffffffff814f146e>] common_interrupt+0x6e/0x6e
   [<ffffffff8106b040>] ? __do_softirq+0x60/0x210
   [<ffffffff8108aeb1>] ? hrtimer_interrupt+0x151/0x240
   [<ffffffff814fb5ec>] call_softirq+0x1c/0x30
   [<ffffffff810152d5>] do_softirq+0x65/0xa0
   [<ffffffff8106ae9d>] irq_exit+0xbd/0xe0
   [<ffffffff814fbf8e>] smp_apic_timer_interrupt+0x6e/0x99
   [<ffffffff814f9e5e>] apic_timer_interrupt+0x6e/0x80
   <EOI>  [<ffffffff814f0fb1>] ? _raw_spin_unlock_irqrestore+0x11/0x20
   [<ffffffff812629fc>] pci_bus_write_config_word+0x6c/0x80
   [<ffffffff81266fc2>] pci_intx+0x52/0xa0
   [<ffffffff8127de3d>] pci_intx_for_msi+0x1d/0x30
  [<ffffffff8127e4fb>] pci_msi_shutdown+0x7b/0x110
   [<ffffffff81269d34>] pci_device_shutdown+0x34/0x50
   [<ffffffff81326c4f>] device_shutdown+0x2f/0x140
   [<ffffffff8107b981>] kernel_restart_prepare+0x31/0x40
   [<ffffffff8107b9e6>] kernel_restart+0x16/0x60
   [<ffffffff8107bbfd>] sys_reboot+0x1ad/0x220
   [<ffffffff814f4b90>] ? do_page_fault+0x1e0/0x460
   [<ffffffff811942d0>] ? __sync_filesystem+0x90/0x90
   [<ffffffff8105c9aa>] ? __cond_resched+0x2a/0x40
   [<ffffffff814ef090>] ? _cond_resched+0x30/0x40
   [<ffffffff81169e17>] ? iterate_supers+0xb7/0xd0
   [<ffffffff814f9382>] system_call_fastpath+0x16/0x1b
  handlers:
  [<ffffffff8138a0f0>] usb_hcd_irq
  [<ffffffff8138a0f0>] usb_hcd_irq
  [<ffffffff8138a0f0>] usb_hcd_irq
  Disabling IRQ #16

An un-wanted interrupt is generated when PCI driver switches from
MSI/MSI-X to INTx while shutting down the device.  The interrupt does
not happen if MSI/MSI-X is not used on the device.
I confirmed that this problem does not happen if pcie_hp=nomsi was
specified and hotplug operation worked fine as usual.

v2: Automatically disable MSI/MSI-X against following device:
    PCI bridge: Integrated Device Technology, Inc. Device 807f (rev 02)
v3: Based on the review comment, combile the if statements.
v4: Removed module parameter.
    Move some code to build pciehp as a module.
    Move device specific code to driver/pci/quirks.c.
v5: Drop a device specific code until getting a vendor statement.

Reviewed-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: MUNEDA Takahiro <muneda.takahiro@jp.fujitsu.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2012-02-23 12:29:35 -08:00
Arnd Bergmann ab646a24bb Merge tag 'rpmsg-for-3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/ohad/remoteproc into next/rpmsg
* tag 'rpmsg-for-3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/ohad/remoteproc:
  remoteproc: s/big switch/lookup table/
  remoteproc: bail out if firmware has different endianess
  remoteproc: don't use virtio's weak barriers
  rpmsg: rename virtqueue_add_buf_gfp to virtqueue_add_buf
  rpmsg: depend on EXPERIMENTAL
  remoteproc: depend on EXPERIMENTAL
  rpmsg: add Kconfig menu
  remoteproc: add Kconfig menu
  remoteproc: look for truncated firmware images
  remoteproc/omap: utilize module_platform_driver
  remoteproc: remove unused resource type
  remoteproc: avoid registering a virtio device if not supported
  remoteproc: do not require an iommu
  samples/rpmsg: add an rpmsg driver sample
  rpmsg: add virtio-based remote processor messaging bus
  remoteproc/omap: add a remoteproc driver for OMAP4
  remoteproc: create rpmsg virtio device
  remoteproc: add debugfs entries
  remoteproc: add framework for controlling remote processors
2012-02-23 14:11:12 +00:00
Grant Likely daefd89efc Merge branch 'for_3.4/gpio/runtime-pm-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-omap-pm into gpio/next 2012-02-22 18:36:17 -07:00
Mahesh Salgaonkar 12d9299241 fadump: Remove the phyp assisted dump code.
Remove the phyp assisted dump implementation which is not is use.

Signed-off-by: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-02-23 10:50:03 +11:00
Mahesh Salgaonkar 8e0aa6d436 fadump: Add documentation for firmware-assisted dump.
Documentation for firmware-assisted dump. This document is based on the
original documentation written for phyp assisted dump by Linas Vepstas
and Manish Ahuja, with few changes to reflect the current implementation.

Signed-off-by: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-02-23 10:50:00 +11:00
Kyle Moffett c1b8d45db4 powerpc/mpic: Add "last-interrupt-source" property to override hardware
The FreeScale PowerQUICC-III-compatible (mpc85xx/mpc86xx) MPICs do not
correctly report the number of hardware interrupt sources, so software
needs to override the detected value with "256".

To avoid needing to write custom board-specific code to detect that
scenario, allow it to be easily overridden in the device-tree.

Signed-off-by: Kyle Moffett <Kyle.D.Moffett@boeing.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-02-23 10:50:00 +11:00
Kyle Moffett 9ca163c860 fsl/mpic: Create and document the "single-cpu-affinity" device-tree flag
The Freescale MPIC (and perhaps others in the future) is incapable of
routing non-IPI interrupts to more than once CPU at a time.  Currently
all of the Freescale boards msut pass the MPIC_SINGLE_DEST_CPU flag to
mpic_alloc(), but that information should really be present in the
device-tree.

Older board code can't rely on the device-tree having the property set,
but newer platforms won't need it manually specified in the code.

[BenH: Remove unrelated changes, folded in a different patch]

Signed-off-by: Kyle Moffett <Kyle.D.Moffett@boeing.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-02-23 10:49:59 +11:00
Kyle Moffett 98cca250ae fsl/mpic: Document and use the "big-endian" device-tree flag
The MPIC code checks for a "big-endian" property and sets the flag
MPIC_BIG_ENDIAN if one is present, although prior to the "mpic->flags"
fixup that would never have worked anways.

Unfortunately, even now that it works properly, the Freescale mpic
device-node (the "PowerQUICC-III"-compatible one) does not specify it,
so all of the board ports need to manually pass it to mpic_alloc().

Document the flag and add it to the pq3 device tree.  Existing code will
still need to pass the MPIC_BIG_ENDIAN flag because their dtb may not
have this property, but new platforms shouldn't need to do so.

Signed-off-by: Kyle Moffett <Kyle.D.Moffett@boeing.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-02-23 10:49:58 +11:00
Arnd Bergmann 2daa79ec21 Merge branch 'lpc32xx/drivers' into next/drivers
* lpc32xx/drivers: (566 commits)
  ARM: LPC32xx: ADC support for mach-lpc32xx

Includes an update to Linux 3.3-rc4

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-02-22 14:20:18 +00:00
John W. Linville a9802d43f2 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem 2012-02-21 15:06:35 -05:00
Paul E. McKenney 236fefafe5 rcu: Call out dangers of expedited RCU primitives
The expedited RCU primitives can be quite useful, but they have some
high costs as well.  This commit updates and creates docbook comments
calling out the costs, and updates the RCU documentation as well.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2012-02-21 09:06:08 -08:00
Paul E. McKenney 2036d94a7b rcu: Rework detection of use of RCU by offline CPUs
Because newly offlined CPUs continue executing after completing the
CPU_DYING notifiers, they legitimately enter the scheduler and use
RCU while appearing to be offline.  This calls for a more sophisticated
approach as follows:

1.	RCU marks the CPU online during the CPU_UP_PREPARE phase.

2.	RCU marks the CPU offline during the CPU_DEAD phase.

3.	Diagnostics regarding use of read-side RCU by offline CPUs use
	RCU's accounting rather than the cpu_online_map.  (Note that
	__call_rcu() still uses cpu_online_map to detect illegal
	invocations within CPU_DYING notifiers.)

4.	Offline CPUs are prevented from hanging the system by
	force_quiescent_state(), which pays attention to cpu_online_map.
	Some additional work (in a later commit) will be needed to
	guarantee that force_quiescent_state() waits a full jiffy before
	assuming that a CPU is offline, for example, when called from
	idle entry.  (This commit also makes the one-jiffy wait
	explicit, since the old-style implicit wait can now be defeated
	by RCU_FAST_NO_HZ and by rcutorture.)

This approach avoids the false positives encountered when attempting to
use more exact classification of CPU online/offline state.

Signed-off-by: Paul E. McKenney <paul.mckenney@linaro.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2012-02-21 09:06:07 -08:00
Paul E. McKenney 24cd7fd0ea rcu: Update stall-warning documentation
Add documentation of CONFIG_RCU_CPU_STALL_VERBOSE, CONFIG_RCU_CPU_STALL_INFO,
and RCU_STALL_DELAY_DELTA.  Describe multiple stall-warning messages from
a single stall, and the timing of the subsequent messages.  Add headings.
Remove RCU_SECONDS_TILL_STALL_RECHECK because this value is now computed
at runtime from RCU_CPU_STALL_TIMEOUT, so that sysfs changes to the timeout
value now directly affect the RCU_SECONDS_TILL_STALL_RECHECK value.

Signed-off-by: Paul E. McKenney <paul.mckenney@linaro.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2012-02-21 09:03:52 -08:00
Paul E. McKenney c13f3757d0 rcu: Add CPU-stall capability to rcutorture
Add module parameters to rcutorture that induce a CPU stall.
The stall_cpu parameter specifies how long to stall in seconds,
defaulting to zero, which indicates no stalling is to be undertaken.
The stall_cpu_holdoff parameter specifies how many seconds after
insmod (or boot, if rcutorture is built into the kernel) that this
stall is to start.  The default value for stall_cpu_holdoff is ten
seconds.

Signed-off-by: Paul E. McKenney <paul.mckenney@linaro.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2012-02-21 09:03:52 -08:00
Paul E. McKenney 105617da8d rcu: Make documentation give more realistic rcutorture duration
The torture.txt documentation gives an example rcutorture run with a
100-second duration.  This is ridiculously short, unless maybe testing
a fix for a egregious bug.  Use a more-realistic one-hour duration for
the example.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2012-02-21 09:03:51 -08:00
Paul E. McKenney 9b9ec9b90e rcutorture: Permit holding off CPU-hotplug operations during boot
When rcutorture is started automatically at boot time, it might well
also start CPU-hotplug operations at that time, which might not be
desirable.  This commit therefore adds an rcutorture parameter that
allows CPU-hotplug operations to be held off for the specified number
of seconds after the start of boot.

Signed-off-by: Paul E. McKenney <paul.mckenney@linaro.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2012-02-21 09:03:50 -08:00
Paul E. McKenney 4c62abc90b rcu: Bring RTFP.txt up to date.
Add publications from 2010 and 2011 to RTFP.txt.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2012-02-21 09:03:21 -08:00
Masanari Iida 24775d652b Documentation: Fix typo in kernel-parameters.txt
Correct spelling "mininum" to "minimum", "conroller" to "controller"
and "explicitely" to "explicitly" in
Documentation/kernel-parameters.txt

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Acked-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-02-21 11:45:13 +01:00
Masanari Iida 010f4564b9 Documentation: Fix broken URL "JF"
Fix broken URL for JF (Japanese FAQ) and its e-mail address.

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Acked-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-02-21 11:44:14 +01:00
Masanari Iida 1f8ee46b40 Documentation: Fix Broken URL "freshmeat"
Fix broken URL in documents "freshmeat" to "freecode" in
Documentation/filesystems/ramfs-rootfs-initramfs.txt,
Documentation/scsi/scsi-generic.txt
Documentation/usb/mtouchusb.txt

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Acked-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-02-21 11:43:45 +01:00
Masanari Iida 67748df830 Documentation: Fix typo in proc_usb_info.txt
Correct typo "filsystem" to "filesystem" in
Documentation/usb/proc_usb_info.txt

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-02-21 11:40:39 +01:00
Masanari Iida edbfc1ba08 Documentation: Fix typo in events-power.txt
Correct spelling "Fequency" to "Frequency" in
Documentation/trace/events-power.txt

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-02-21 11:40:38 +01:00
Masanari Iida 4998d8ed54 Documentation: Fix typo in thin-provisioning.txt
Correct spelling "descibes" to "describes" in
Documentation/device-mapper/thin-provisioning.txt

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-02-21 11:40:37 +01:00
Masanari Iida 45f3122622 Documentation: Fix typo in power-management.txt
Correct spelling "diconnect()" to "disconnect()" in
Documentation/usb/power-management.txt

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-02-21 11:40:37 +01:00
Masanari Iida e19865219d Documentation: Fix typo in watchdog-kernel-api.txt
Correct spelling "retruns" to "returns" in
Documentations/watchdog/watchdog-kernel-api.txt

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-02-21 11:40:34 +01:00
Takashi Iwai 1a97b7f227 ALSA: hda/realtek - Remove the last static quirks for ALC882
Resitance is futile.  The remaining static model quirks for Apple
machines with ALC882-compatible codecs are converted to the auto-parser
now.  We can remove all alc*_quirks.c finally.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-02-21 11:11:48 +01:00
Eric Sandeen 661aa52057 ext4: remove the resize mount option
The resize mount option seems to be of limited value,
especially in the age of online resize2fs.  Nuke it.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2012-02-20 17:53:04 -05:00
Eric Sandeen 43e625d84f ext4: remove the journal=update mount option
The V2 journal format was introduced around ten years ago,
for ext3. It seems highly unlikely that anyone will need this
migration option for ext4.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2012-02-20 17:53:04 -05:00
Takashi Iwai 67b6ec3196 ALSA: hda/realtek - Drop all ALC880 static quirks
Finally the all static quirks for ALC880 are converted to the
auto-parser.  Since we are never sure whether the BIOS on so many old
machines are really correct, the quirk table entries are copied as
they are, but just providing the proper pin-config values
accordingly.

Since alc880_quirks.c is removed, alc882_quirks.c has to be adjusted
slightly to be built again.  There might be some compile warnings due
to the remaining alc882 quirks, but these shall be killed sooner or
later, I don't care it much at this point.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-02-20 18:20:42 +01:00
Takashi Iwai 29e3fdcc84 ALSA: hda/realtek - Drop model=asus* from ALC880
It turned out that BIOS on most of ASUS mobo's set the pin-config tables
reasonably well for the auto-parser.  We'd need GPIO setups, but should
work as is other than that.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-02-20 17:56:57 +01:00
Takashi Iwai 411225a01e ALSA: hda/realtek - Rewrite ALC880 model=asus-w1v with auto-parser
ASUS W1V has a sane pin-config table set by BIOS.  The only missing piece
is the setup of GPIO1.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-02-20 17:48:19 +01:00
Takashi Iwai 96e225f692 ALSA: hda/realtek - Rewrite ALC880 model=z71v with auto-parser
ASUS Z71V has a totally broken BIOS setup (at least the info I got),
thus we need to override the whole pin-config table to make the
auto-parser working correctly.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-02-20 17:43:00 +01:00
Takashi Iwai 817de92f1b ALSA: hda/realtek - Rewrite ALC880 model=uniwill with auto-parser
The model=uniwill would work almost as is, but a couple of adjustments
are needed to make the mutli-io working correctly.  The headphone and
speaker pins have to be marked properly in pin configs.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-02-20 17:30:49 +01:00
Takashi Iwai ba5338185d ALSA: hda/realtek - Rewrite ALC880 model=F1734 with auto-parser
Similar as the previous patch for model=fujitsu, we can now move the
static quirk for F1734 to the auto-parser.  The only difference is the
default pin configurations: F1734 has less pins than Amilo's.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-02-20 17:06:04 +01:00
Takashi Iwai cf5a22793c ALSA: hda/realtek - Rewrite ALC880 model=futjisu with auto-parser
Now adding the support for the volume-knob widget, we can move the static
quirk for ALC880 model=fujitsu to the auto-parser completely.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-02-20 16:31:07 +01:00
Dan Williams 735f7d2fed [SCSI] libsas: fix domain_device leak
Arrange for the deallocation of a struct domain_device object when it no
longer has:
1/ any children
2/ references by any scsi_targets
3/ references by a lldd

The comment about domain_device lifetime in
Documentation/scsi/libsas.txt is stale as it appears mainline never had
a version of a struct domain_device that was registered as a kobject.
We now manage domain_device reference counts on behalf of external
agents.

Reviewed-by: Jack Wang <jack_wang@usish.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-02-19 13:37:47 -06:00
David Howells 1dce27c5aa Wrap accesses to the fd_sets in struct fdtable
Wrap accesses to the fd_sets in struct fdtable (for recording open files and
close-on-exec flags) so that we can move away from using fd_sets since we
abuse the fd_set structs by not allocating the full-sized structure under
normal circumstances and by non-core code looking at the internals of the
fd_sets.

The first abuse means that use of FD_ZERO() on these fd_sets is not permitted,
since that cannot be told about their abnormal lengths.

This introduces six wrapper functions for setting, clearing and testing
close-on-exec flags and fd-is-open flags:

	void __set_close_on_exec(int fd, struct fdtable *fdt);
	void __clear_close_on_exec(int fd, struct fdtable *fdt);
	bool close_on_exec(int fd, const struct fdtable *fdt);
	void __set_open_fd(int fd, struct fdtable *fdt);
	void __clear_open_fd(int fd, struct fdtable *fdt);
	bool fd_is_open(int fd, const struct fdtable *fdt);

Note that I've prepended '__' to the names of the set/clear functions because
they require the caller to hold a lock to use them.

Note also that I haven't added wrappers for looking behind the scenes at the
the array.  Possibly that should exist too.

Signed-off-by: David Howells <dhowells@redhat.com>
Link: http://lkml.kernel.org/r/20120216174942.23314.1364.stgit@warthog.procyon.org.uk
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
2012-02-19 10:30:52 -08:00
Chad Dupuis bc3f957c06 [SCSI] qla2xxx: Update LICENSE.qla2xxx.
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-02-19 08:25:10 -06:00
Jing Huang 1ec90174bd [SCSI] bfa: add readme file
This patch add bfa driver readme file to Documentation/scsi

Signed-off-by: Jing Huang <huangj@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-02-19 08:09:01 -06:00
David S. Miller 3ccdca7775 Merge tag 'batman-adv-for-davem' of git://git.open-mesh.org/linux-merge 2012-02-17 15:49:12 -05:00
Takashi Iwai b9368f5c10 ALSA: hda/realtek - Replace ALC880 model=tcl with auto-parser
It needs a few extra setups for EAPD, but others look fairly
straightforward.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-02-17 17:59:22 +01:00
Takashi Iwai 27e917f82b ALSA: hda/realtek - Drop ALC880 model=clevo
Clevo machines with ALC880 are all well with proper BIOS setup.
It seems still requiring the additional COEF setup for the EAPD.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-02-17 17:59:16 +01:00
Takashi Iwai f02aab5d7f ALSA: hda/realtek - Rewrite ALC880 model=w810 with auto-parser
The Medion W810 with ALC880 has a typical BIOS bug, copying the
pin-defaults without disabling the unused pins.  At least, the pin
0x17 must be disabled.  Also, it requires GPIO-2 setup.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-02-17 17:59:00 +01:00
Takashi Iwai dc6af52dea ALSA: hda/realtek - Rewrite ALC880 model=lg with the auto-parser
ALC880 model=lg could work fine with the auto-parser due to the recent
rewrite, but it still needs the manual adjustment; namely, the BIOS leaves
unused pins as some real active jacks.  This confuses the parser.
Thus we just cover these pins and override the pin-configs as a fix-up.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-02-17 16:18:59 +01:00
Ingo Molnar 09bda4432a Merge branch 'tip/perf/core' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace into perf/core 2012-02-17 12:55:07 +01:00
Marek Lindner ea3d2fd1b1 batman-adv: export used routing algorithm via sysfs
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
2012-02-17 02:50:20 +08:00
Takashi Iwai c3c2c9e7ff ALSA: hda/realtek - Remove leftover static quirks for ALC260
Now we can clean up all static quirks for ALC260.
Also many codes in alc_quirks.c can be ripped off since they have been
used only by ALC260 static quirks.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-02-16 12:59:55 +01:00
Takashi Iwai c29b3f6dd7 ALSA: hda/realtek - Drop model=fujitsu from ALC260 static quirks
The model works with the auto-parser as is, thus now good to drop.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-02-16 12:47:36 +01:00
Takashi Iwai b1f58085a9 ALSA: hda/realtek - Drop model=favorit100 for ALC260
It's working with the auto-parser just with the standard GPIO 1 setup.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-02-16 12:45:03 +01:00
Takashi Iwai 20f7d928fa ALSA: hda/realtek - Replace ALC260 model=replacer with the auto-parser
The support for Replacer 627V in the auto-parser needs the unique unsol
event handling: although the machine has a single output pin 0x0f, it's
used for both the headphone and the speaker, and the driver needs to
toggle the output route via GPIO 1.

In addition, it needs a special COEF setup with 0x3050.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-02-16 12:39:35 +01:00
Takashi Iwai 15317ab216 ALSA: hda/realtek - Replace ALC260 model=acer with the auto-parser
The ALC260 model=acer needs GPIO1 setup.  It could be selected well
if the codec SSID is set properly by BIOS, but to make sure, enable it
forcibly.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-02-16 12:20:02 +01:00
Takashi Iwai ca8f04247e ALSA: hda/realtek - Add the fixup codes for ALC260 model=will
The model=will for ALC260 requires the pin 0x0f to be a headphone and
some special verbs for the COEF to turn on the amp.  Now added these as
fixup entries and removed the static model quirk.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-02-16 11:51:19 +01:00
Kees Cook bf06189e4d Yama: add PR_SET_PTRACER_ANY
For a process to entirely disable Yama ptrace restrictions, it can use
the special PR_SET_PTRACER_ANY pid to indicate that any otherwise allowed
process may ptrace it. This is stronger than calling PR_SET_PTRACER with
pid "1" because it includes processes in external pid namespaces. This is
currently needed by the Chrome renderer, since its crash handler (Breakpad)
runs external to the renderer's pid namespace.

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: James Morris <jmorris@namei.org>
2012-02-16 10:25:18 +11:00
Greg Kroah-Hartman bc5bca53cc driver-core: documentation: fix up Greg's email address
My old email address was used in a lot of documentation files, so fix
this up to point to the correct one now.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-15 14:48:01 -08:00
John W. Linville ca994a36f5 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
Conflicts:
	net/mac80211/debugfs_sta.c
	net/mac80211/sta_info.h
2012-02-15 16:24:37 -05:00
Benoit Cousson d5a8003135 spi/omap: Add DT support to McSPI driver
Add device tree support to the OMAP2+ McSPI driver.
Add the bindings documentation.

Based on original code from Rajendra.

Signed-off-by: Benoit Cousson <b-cousson@ti.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-02-15 12:57:00 -07:00
Trond Myklebust ef159e9177 NFSv4.1: Add a module parameter to set the number of session slots
Add the module parameter 'max_session_slots' to set the initial number
of slots that the NFSv4.1 client will attempt to negotiate with the
server.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-02-15 00:19:44 -05:00
Grant Likely 7ab3a837ad irq_domain: add documentation and MAINTAINERS entry.
Documentation for irq_domain library which will be created in subsequent
patches.

v4: editorial changes

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Reviewed-by: Randy Dunlap <rdunlap@xenotime.net>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Milton Miller <miltonm@bga.com>
Tested-by: Olof Johansson <olof@lixom.net>
2012-02-14 14:06:47 -07:00
Hans Verkuil 77bd4c0ff1 [media] Document decoder controls
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-02-14 13:44:03 -02:00
Hans Verkuil 6b4f12523d [media] v4l spec: document VIDIOC_(TRY_)DECODER_CMD
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-02-14 13:42:34 -02:00
Rafael J. Wysocki 654b0c9627 Merge commit 'pm-fixes-for-3.3-rc3' into pm-qos
New material in the pm-qos branch depends on recent power management
fixes.
2012-02-13 16:20:07 +01:00
Geunsik Lim cdfb0d30e9 ftrace: Append wakeup_rt description of ftrace doc
Append and update the description about wakeup/wakeup_rt usage.

Link: http://lkml.kernel.org/r/1328695537-15081-2-git-send-email-geunsik.lim@gmail.com

Cc: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Geunsik Lim <geunsik.lim@samsung.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2012-02-13 09:14:48 -05:00
Fernando Luis Vázquez Cao 9919cba7ff watchdog: Update documentation
The soft and hard lockup detectors are now built on top of the
hrtimer and perf subsystems. Update the documentation
accordingly.

Signed-off-by: Fernando Luis Vazquez Cao<fernando@oss.ntt.co.jp>
Acked-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Don Zickus <dzickus@redhat.com>
Link: http://lkml.kernel.org/r/1328827342-6253-1-git-send-email-dzickus@redhat.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2012-02-11 15:11:28 +01:00
David S. Miller d5ef8a4d87 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
	drivers/infiniband/hw/nes/nes_cm.c

Simple whitespace conflict.

Signed-off-by: David S. Miller <davem@davemloft.net>
2012-02-10 23:32:28 -05:00
Linus Walleij 77a5988355 pinctrl: changes hog mechanism to be self-referential
Instead of a specific boolean field to indicate if a map entry shall
be hogged, treat self-reference as an indication of desired hogging.
This drops one field off the map struct and has a nice Douglas R.
Hofstadter-feel to it.

Acked-by: Dong Aisheng <dong.aisheng@linaro.org>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-02-10 21:33:10 +01:00
Linus Walleij e93bcee00c pinctrl: move generic functions to the pinctrl_ namespace
Since we want to use the former pinmux handles and mapping tables for
generic control involving both muxing and configuration we begin
refactoring by renaming them from pinmux_* to pinctrl_*.

ChangeLog v1->v2:
- Also rename the PINMUX_* macros in machine.h to PIN_ as indicated
  in the documentation so as to reflect the generic nature of these
  mapping entries from now on.

Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-02-10 21:33:02 +01:00
Linus Walleij 28a8d14cc7 pinctrl: break out a pinctrl consumer header
This breaks out a <linux/pinctrl/consumer.h> header to be used by
all pinmux and pinconfig alike, so drivers needing services from
pinctrl does not need to include different headers. This is similar
to the approach taken by the regulator API.

Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-02-10 21:32:57 +01:00
Lee Jones da5a70f351 Documentation: add information for new sysfs soc bus functionality
This change applies the required documentation for each new
attribute recenty added by the new System-On-Chip (SoC)
information export bus driver.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-10 11:42:25 -08:00
Greg Kroah-Hartman 7483948fdd Merge tag 'usb-3.3-rc3' into usb-next
This is done to resolve a merge conflict with:
	drivers/usb/class/cdc-wdm.c
and to better handle future patches for this driver as it is under
active development at the moment.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-10 11:13:53 -08:00
Greg Kroah-Hartman 5a22e30def Merge tag 'tty-3.3-rc3' tty-next
This is needed to handle the 8250 file merge mess properly for future
patches.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-10 10:25:27 -08:00
Masanari Iida d65657c862 mm: Fix typo in cleancache.txt
Correct spelling "implementatation" to "implementation" in
Documentation/vm/cleancache.txt

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-02-10 09:52:18 +01:00
Masanari Iida 26725f2ad6 Documentation: Fix typo in tcm_mod_builder.py
Correct spelling "alocate" to "allocate" in
Documentation/target/tcm_mod_builder.py

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-02-10 09:52:18 +01:00
Srivatsa S. Bhat 9045a05044 PM / Freezer / Docs: Document the beauty of freeze/thaw semantics
The way the different freeze/thaw functions encapsulate each other are quite
lovely from a design point of view. And as a side-effect, the way in which
they are invoked (cleaning up on failure for example) differs significantly
from how usual functions are dealt with. This is because of the underlying
semantics that govern the freezing and thawing of various tasks.

This subtle aspect that differentiates these functions from the rest, is
worth documenting.

Many thanks to Tejun Heo for providing enlightenment on this topic.

Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-02-09 23:55:49 +01:00
Rafael J. Wysocki 3ed3c7b559 Merge commit 'pm-fixes-for-3.3-rc3' into pm-sleep
New material in the pm-sleep branch depends on recent
power management fixes.
2012-02-09 23:54:09 +01:00
Kees Cook 2d514487fa security: Yama LSM
This adds the Yama Linux Security Module to collect DAC security
improvements (specifically just ptrace restrictions for now) that have
existed in various forms over the years and have been carried outside the
mainline kernel by other Linux distributions like Openwall and grsecurity.

Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: John Johansen <john.johansen@canonical.com>
Signed-off-by: James Morris <jmorris@namei.org>
2012-02-10 09:18:52 +11:00
Masanari Iida 3cd0b6252e mm: Fix typo in unevictable-lru.txt
Correct spelling "semphore" to "semaphore" in
Documentation/vm/unevictable-lru.txt

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-02-09 23:09:53 +01:00
Matthew Garrett 0846e7e985 usb: Add support for indicating whether a port is removable
Userspace may want to make policy decisions based on whether or not a
given USB device is removable. Add a per-device member and support
for exposing it in sysfs. Information sources to populate it will be
added later.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-09 08:40:11 -08:00
Mark Brown a08a499aa3 Linux 3.3-rc3
.. the number of the half-beast?
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Merge tag 'v3.3-rc3' as we've got several bugfixes in there which are
colliding annoyingly with development.

Linux 3.3-rc3

.. the number of the half-beast?

Conflicts:
	sound/soc/codecs/wm5100.c
	sound/soc/codecs/wm8994.c
2012-02-09 12:00:22 +00:00
James Morris 9e3ff38647 Merge branch 'next-queue' into next 2012-02-09 17:02:34 +11:00
Ohad Ben-Cohen bcabbccabf rpmsg: add virtio-based remote processor messaging bus
Add a virtio-based inter-processor communication bus, which enables
kernel drivers to communicate with entities, running on remote
processors, over shared memory using a simple messaging protocol.

Every pair of AMP processors share two vrings, which are used to send
and receive the messages over shared memory.

The header of every message sent on the rpmsg bus contains src and dst
addresses, which make it possible to multiplex several rpmsg channels on
the same vring.

Every rpmsg channel is a device on this bus. When a channel is added,
and an appropriate rpmsg driver is found and probed, it is also assigned
a local rpmsg address, which is then bound to the driver's callback.

When inbound messages carry the local address of a bound driver,
its callback is invoked by the bus.

This patch provides a kernel interface only; user space interfaces
will be later exposed by kernel users of this rpmsg bus.

Designed with Brian Swetland <swetland@google.com>.

Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Acked-by: Rusty Russell <rusty@rustcorp.com.au> (virtio_ids.h)
Cc: Brian Swetland <swetland@google.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Greg KH <greg@kroah.com>
Cc: Stephen Boyd <sboyd@codeaurora.org>
2012-02-08 22:53:58 +02:00
Ohad Ben-Cohen 400e64df6b remoteproc: add framework for controlling remote processors
Modern SoCs typically employ a central symmetric multiprocessing (SMP)
application processor running Linux, with several other asymmetric
multiprocessing (AMP) heterogeneous processors running different instances
of operating system, whether Linux or any other flavor of real-time OS.

Booting a remote processor in an AMP configuration typically involves:
- Loading a firmware which contains the OS image
- Allocating and providing it required system resources (e.g. memory)
- Programming an IOMMU (when relevant)
- Powering on the device

This patch introduces a generic framework that allows drivers to do
that. In the future, this framework will also include runtime power
management and error recovery.

Based on (but now quite far from) work done by Fernando Guzman Lugo
<fernando.lugo@ti.com>.

ELF loader was written by Mark Grosen <mgrosen@ti.com>, based on
msm's Peripheral Image Loader (PIL) by Stephen Boyd <sboyd@codeaurora.org>.

Designed with Brian Swetland <swetland@google.com>.

Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Cc: Brian Swetland <swetland@google.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Greg KH <greg@kroah.com>
Cc: Stephen Boyd <sboyd@codeaurora.org>
2012-02-08 22:52:56 +02:00
Stephen Warren 3391811c42 gpio: tegra: Parameterize the number of banks
Tegra20's GPIO controller has 7 banks, and Tegra30's controller has 8
banks. Allow the number of banks to be configured at run-time by the
device tree.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Olof Johansson <olof@lixom.net>
2012-02-06 18:25:00 -08:00
Stephen Warren 6f74dc9bc8 gpio: tegra: Dynamically allocate IRQ base, and support DT
Enhance the driver to dynamically allocate the base IRQ number, and
create an IRQ domain for itself. The use of an IRQ domain ensures that
any device tree node interrupts properties are correctly parsed.

Describe interrupt-related properties in the device tree binding docs,
and the contents of "child" node interrupts property.

Update tegra*.dtsi to specify the required interrupt-related properties.

Finally, remove the definition of TEGRA_GPIO_TO_IRQ; this macro no longer
gives correct results since the IRQ numbers for GPIOs are dynamically
allocated.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Olof Johansson <olof@lixom.net>
2012-02-06 18:25:00 -08:00
Stephen Warren d17adfdb17 ARM: dt: Add binding for Tegra PMC
The Tegra PMC (Power Management Controller) interfaces with an external
PMU (Power Management Unit), and controls wake-up from sleep modes.

This initial binding is the bare minimum required to control the PMC's
inversion of the PMU's interrupt signal.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2012-02-06 18:21:21 -08:00
Stephen Warren 8051b75ab3 ARM: dt: tegra: Add Tegra APB DMA device tree binding
Document binding, and add the node to tegra*.dtsi.

The driver isn't actually instantiated from this node yet, but the I2S
binding will rely on being able to refer to the APB DMA node using a
phandle.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2012-02-06 18:21:20 -08:00
Stephen Warren a38b84fce9 dt: tegra gpio: Flesh out binding documentation
Document the required reg and interrupts properties.
Add a complete example.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Olof Johansson <olof@lixom.net>
2012-02-06 18:21:19 -08:00
Olof Johansson 0c6700abfa ARM: tegra: emc: device tree bindings
Device tree bindings for the EMC tables on tegra.

Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
2012-02-06 18:21:18 -08:00
Larry Finger f5fe184b08 Documentation: add missing tainted bits to Documentation/sysctl/kernel.txt
Two of the bits in the tainted flag are not documented.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-02-06 16:29:19 -08:00
Bryan Schumaker a602bea3e7 NFS: Update idmapper documentation
Signed-off-by: Bryan Schumaker <bjschuma@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-02-06 18:48:01 -05:00
Johannes Berg 95de817b90 cfg80211: stop tracking authenticated state
To track authenticated state seems to have been
a design mistake in cfg80211. It is possible to
have out of band authentication (FT), tracking
multiple authentications caused more problems
than it ever helped, and the implementation in
mac80211 is too complex.

Remove all this complexity, and let userspace
do whatever it wants to, mac80211 can deal with
that just fine. Association is still tracked of
course, but authentication no longer is. Local
auth state changes are thus no longer of value,
so ignore them completely.

This will also help implement SAE -- asking the
driver to do an authentication is now almost
equivalent to sending an authentication frame,
with the exception of shared key authentication
which is still handled completely.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-02-06 14:50:37 -05:00
David S. Miller dd48dc34fe Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-02-04 16:39:32 -05:00
Sritej Velaga 97bf2262e7 qlge: Updating Schultz LICENSE.qlge file.
Signed-off-by: Sritej Velaga <sritej.velaga@qlogic.com>
Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-02-04 15:59:30 -05:00
Linus Torvalds 31c150a11c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: i8042 - add Lenovo Ideapad U455 to 'reset' blacklist
  Input: serio_raw - return proper result when serio_raw_read fails
  Input: document device properties
  Input: twl4030_keypad - fix comment (trivial)
  Input: gpio_keys - fix struct device declared inside parameter list
  Input: evdev - fix variable initialisation
2012-02-04 10:57:42 -08:00
Sebastian Andrzej Siewior b43ab901d6 gpio: Add a driver for Sodaville GPIO controller
Sodaville has GPIO controller behind the PCI bus. To my suprissed it is
not the same as on PXA.

The interrupt & gpio chip can be referenced from the device tree like
from any other driver. Unfortunately the driver which uses the gpio
interrupt has to use irq_of_parse_and_map() instead of
platform_get_irq(). The problem is that the platform device (which is
created from the device tree) is most likely created before the
interrupt chip is registered and therefore irq_of_parse_and_map() fails.

In theory the driver works as module. In reality most of the irq
functions are not exported to modules and it is possible that _this_
module is unloaded while the provided irqs are still in use.

Signed-off-by: Hans J. Koch <hjk@linutronix.de>
[torbenh@linutronix.de: make it work after the irq namespace cleanup,
	                add some device tree entries.]
Signed-off-by: Torben Hohn <torbenh@linutronix.de>
[bigeasy@linutronix.de: convert to generic irq & gpio chip]
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
[grant.likely@secretlab.ca: depend on x86 to avoid irq_domain breakage]
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-02-03 16:13:25 -07:00
Jean-Christophe PLAGNIOL-VILLARD 9918ceafd4 ARM: at91: code removal of CAP9 SoC
Following removal announce and addition to feature-removal-schedule.txt,
here is the actual source code deletion for Atmel CAP9 family.

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2012-02-03 13:33:05 +01:00
Greg Kroah-Hartman bd1d462e13 Merge 3.3-rc2 into the driver-core-next branch.
This was done to resolve a merge and build problem with the
drivers/acpi/processor_driver.c file.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-02 11:24:44 -08:00
Li Zefan 761b3ef50e cgroup: remove cgroup_subsys argument from callbacks
The argument is not used at all, and it's not necessary, because
a specific callback handler of course knows which subsys it
belongs to.

Now only ->pupulate() takes this argument, because the handlers of
this callback always call cgroup_add_file()/cgroup_add_files().

So we reduce a few lines of code, though the shrinking of object size
is minimal.

 16 files changed, 113 insertions(+), 162 deletions(-)

   text    data     bss     dec     hex filename
5486240  656987 7039960 13183187         c928d3 vmlinux.o.orig
5486170  656987 7039960 13183117         c9288d vmlinux.o

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
2012-02-02 09:20:22 -08:00
Vaibhav Hiremath 5411972995 arm/dts: OMAP3: Add omap3evm and am335xevm support
TI's OMAP3EVM and AM335xEVM are software development boards
available for OMAP35x(AM/DM37x) and AM335x devices respectively;
and these devices are considered under omap3 family.

Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com>
Cc: Benoit Cousson <b-cousson@ti.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Tony Lindgren <tony@atomide.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-02-01 21:56:17 -07:00
Randy Dunlap 13405059e8 docbook: fix fatal errors in device-drivers docbook and add DMA Management section
Fix 2 fatal errors in the device-drivers docbook.
Also add some missing files from drivers/base/; since several
of these are DMA-related, add a section for DMA Management.

docproc: drivers/base/sys.c: No such file or directory
docproc: drivers/tty/serial/8250.c: No such file or directory

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-02-01 17:28:26 -08:00
Rafael J. Wysocki dcaad77a80 Merge branch 'v3.4-for-rafael' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into pm-domains
* 'v3.4-for-rafael' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
  ARM: EXYNOS: Hook up power domains to generic power domain infrastructure
  PM / Domains: Add OF support
2012-02-01 22:18:43 +01:00
Linus Walleij 9dfac4fd7f pinctrl: delete raw device pointers in pinmux maps
After discussion with Mark Brown in an unrelated thread about
ADC lookups, it came to my knowledge that the ability to pass
a struct device * in the regulator consumers is just a
historical artifact, and not really recommended. Since there
are no in-kernel users of these pointers, we just kill them
right now, before someone starts to use them.

Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-02-01 19:42:35 +01:00
Henrik Rydberg d04df0232d Input: document device properties
Add a section which defines the input device properties and provides
guidelines on how to use them.

Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Reviewed-by: Chase Douglas <chase.douglas@canonical.com>
Reviewed-by: Jussi Pakkanen <jussi.pakkanen@canonical.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2012-02-01 09:14:17 -08:00
Mark Brown 177f72fd10 Linux 3.3-rc2
.. several days delayed. No reason, I just didn't think of it.
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Merge tag 'v3.3-rc2' into for-3.4

A reasonable amount of new development is causing fiddly merge conflicts
between different resource management changes (mostly fixing bugs in
resource management due to noticing things while doing enhancements in
the same area).

Linux 3.3-rc2

.. several days delayed. No reason, I just didn't think of it.
2012-02-01 10:08:15 +00:00
Leon Romanovsky 761bfdd911 ASoC: Tegra+ALC5632 machine: Add device tree binding documentation
Document device tree binding for the tegra board with ALC5632 codec
according to datasheet functional block description.

Signed-off-by: Leon Romanovsky <leon@leon.nu>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-01-31 19:36:47 +00:00
Leon Romanovsky 919c1e541d ASoC: ALC5632: Add device tree binding documentation
Document the device tree binding for the ALC5632 codec and update vendor
specific prefix for the Realtek.

Signed-off-by: Leon Romanovsky <leon@leon.nu>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-01-31 19:36:17 +00:00
Axel Lin c1432b1ebc regulator: add devm_regulator_* to the list of managed interfaces
Add devm_regulator_put() and devm_regulator_bulk_get() to the list of managed
interfaces.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-01-31 11:18:56 +00:00
Linus Torvalds 8e2a2880a5 Merge branch 'for-torvalds' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Here are some fixes to the pin control system that has accumulated since
-rc1.  Mainly Tony Lindgren fixed the module load/unload logic and the
rest are minor fixes and documentation.

* 'for-torvalds' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
  pinctrl: add checks for empty function names
  pinctrl: fix pinmux_hog_maps when ctrl_dev_name is not set
  pinctrl: fix some pinmux typos
  pinctrl: free debugfs entries when unloading a pinmux driver
  pinctrl: unbreak error messages
  Documentation/pinctrl: fix a few syntax errors in code examples
  pinctrl: fix pinconf_pins_show iteration
2012-01-30 17:06:26 -08:00
Paul Gortmaker 3396c7823e drivers/net: fix up stale paths from driver reorg
The reorganization of the driver layout in drivers/net
left behind some stale paths in comments and in Kconfig
help text.  Bring them up to date.  No actual change to
any code takes place here.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
CC: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-30 12:54:40 -05:00
Rafael J. Wysocki cf579dfb82 PM / Sleep: Introduce "late suspend" and "early resume" of devices
The current device suspend/resume phases during system-wide power
transitions appear to be insufficient for some platforms that want
to use the same callback routines for saving device states and
related operations during runtime suspend/resume as well as during
system suspend/resume.  In principle, they could point their
.suspend_noirq() and .resume_noirq() to the same callback routines
as their .runtime_suspend() and .runtime_resume(), respectively,
but at least some of them require device interrupts to be enabled
while the code in those routines is running.

It also makes sense to have device suspend-resume callbacks that will
be executed with runtime PM disabled and with device interrupts
enabled in case someone needs to run some special code in that
context during system-wide power transitions.

Apart from this, .suspend_noirq() and .resume_noirq() were introduced
as a workaround for drivers using shared interrupts and failing to
prevent their interrupt handlers from accessing suspended hardware.
It appears to be better not to use them for other porposes, or we may
have to deal with some serious confusion (which seems to be happening
already).

For the above reasons, introduce new device suspend/resume phases,
"late suspend" and "early resume" (and analogously for hibernation)
whose callback will be executed with runtime PM disabled and with
device interrupts enabled and whose callback pointers generally may
point to runtime suspend/resume routines.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Reviewed-by: Kevin Hilman <khilman@ti.com>
2012-01-29 20:38:29 +01:00
Linus Torvalds 0a96265754 Here are some patches for the 3.3-rc1 tree.
It contains the removal of the sysdev code, now that all users of it are
 gone, as well as some sysfs bugfixes that have been reported by users.
 There are also some documentation updates here as well.
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Merge tag 'driver-core-3.3-rc1-bugfixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Here are some patches for the 3.3-rc1 tree.

It contains the removal of the sysdev code, now that all users of it are
gone, as well as some sysfs bugfixes that have been reported by users.
There are also some documentation updates here as well.

* tag 'driver-core-3.3-rc1-bugfixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
  sysfs: Complain bitterly about attempts to remove files from nonexistent directories.
  stable: update documentation to ask for kernel version
  base/core.c:fix typo in comment in function device_add
  Documentation: devres: add allocation functions to list of supported calls
  Documentation update for the driver model core
  kernel-doc: fix new warnings in driver-core
  kernel-doc: fix new warnings in debugfs
  kernel-doc: fix new warnings in device.h
  driver core: remove drivers/base/sys.c and include/linux/sysdev.h
2012-01-28 18:20:48 -08:00
Linus Torvalds e3b8369ca8 Autogenerated GPG tag for Rusty D1ADB8F1: 15EE 8D6C AB0E 7F0C F999 BFCB D920 0E6C D1AD B8F1
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Merge tag 'for-linus' of git://github.com/rustyrussell/linux

* tag 'for-linus' of git://github.com/rustyrussell/linux:
  lguest: remove reference from Documentation/virtual/00-INDEX
  virtio: correct the memory barrier in virtqueue_kick_prepare()
  virtio: fix typos of memory barriers
2012-01-28 18:16:09 -08:00
Linus Torvalds 81bc3009e0 arm-soc fixes for 3.3-rc:
AT91 needed reset fixes which resulted in some minor code refactoring,
 it also adds a feature-removal for one of their platforms for 3.4.
 The USB patches have been acked by Greg K-H.
 
 i.MX and ux500 both have some minor fixes, nothing controversial.
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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

arm-soc fixes for 3.3-rc:

AT91 needed reset fixes which resulted in some minor code refactoring,
it also adds a feature-removal for one of their platforms for 3.4.
The USB patches have been acked by Greg K-H.

i.MX and ux500 both have some minor fixes, nothing controversial.

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  arch/arm/mach-imx/mach-mx53_ard.c: add missing iounmap
  ARM: imx: iomux-v1.h: Fix build error due to __init annotation
  ARM: at91: Fix at91sam9g45 and at91cap9 reset
  ARM: at91: make rstc soc independent
  ARM: at91: introduce AT91_SAM9_ALT_RESET to select the at91sam9 alternative reset
  ARM: at91: merge at91cap9_ddrsdr.h in at91sam9_ddrsdr.h
  ARM: at91: fix cap9 ddrsdr register
  ARM/USB: at91/ohci-at91: rename vbus_pin_inverted to vbus_pin_active_low
  USB: at91: fix clk_get error handling
  ARM: at91: removal of CAP9 SoC family
  ARM: at91: fix at91rm9200 soc subtype handling
  mach-ux500: no MMC_CAP_SD_HIGHSPEED on Snowball
  mach-ux500: enable ARM errata 764369
  mach-ux500: do not override outer.inv_all
  mach-ux500: musb: now musb is always in OTG mode
  ARM: imx6: add missing twd_clk for imx6q clock
2012-01-28 13:21:54 -08:00
Rusty Russell 13289d5f2b lguest: remove reference from Documentation/virtual/00-INDEX
We're in tools/lguest now.

Reported-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2012-01-28 08:10:23 +10:30
Rakib Mullick 30fd049afc sched: Remove sched_switch
Currently we don't utilize the sched_switch field anymore.

But, simply removing sched_switch field from the middle of the
sched_stat output will break tools.

So, to stay compatible we hardcode it to zero and remove the
field from the scheduler data structures.

Update the schedstat documentation accordingly.

Signed-off-by: Rakib Mullick <rakib.mullick@gmail.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1327422836.27181.5.camel@localhost.localdomain
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2012-01-27 13:28:53 +01:00
Thomas Abraham 91cfbd4ee0 ARM: EXYNOS: Hook up power domains to generic power domain infrastructure
Add support for generic power domain for Exynos4 platforms and remove the
Samsung specific power domain control for Exynos4.

The generic power domain infrastructure is used to control the power domains
available on Exynos4. For non-dt platforms, the power domains are statically
instantiated. For dt platforms, the power domain nodes found in the device
tree are instantiated.

Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-01-27 15:25:49 +09:00
Uwe Kleine-König 3afbd89c96 serial/efm32: add new driver
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2012-01-26 11:29:47 -08:00
Ludwig Nussel d6e486868c debugfs: add mode, uid and gid options
Cautious admins may want to restrict access to debugfs. Currently a
manual chown/chmod e.g. in an init script is needed to achieve that.
Distributions that want to make the mount options configurable need
to add extra config files. By allowing to set the root inode's uid,
gid and mode via mount options no such hacks are needed anymore.
Instead configuration becomes straight forward via fstab.

Signed-off-by: Ludwig Nussel <ludwig.nussel@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2012-01-26 11:28:49 -08:00
Tony Lindgren de849eecd0 pinctrl: fix some pinmux typos
Fix some pinmux typos so implementing pinmux drivers
is a bit easier.

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-01-26 14:11:31 +01:00
Linus Torvalds f8275f9694 Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux
Quoth Len:
 "This fixes a merge-window regression due to a conflict
  between error injection and preparation to remove atomicio.c
  Here we fix that regression and complete the removal
  of atomicio.c.

  This also re-orders some idle initialization code to
  complete the merge window series that allows cpuidle
  to cope with bringing processors on-line after boot."

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux:
  Use acpi_os_map_memory() instead of ioremap() in einj driver
  ACPI, APEI, EINJ, cleanup 0 vs NULL confusion
  ACPI, APEI, EINJ Allow empty Trigger Error Action Table
  thermal: Rename generate_netlink_event
  ACPI / PM: Add Sony Vaio VPCCW29FX to nonvs blacklist.
  ACPI: Remove ./drivers/acpi/atomicio.[ch]
  ACPI, APEI: Add RAM mapping support to ACPI
  ACPI, APEI: Add 64-bit read/write support for APEI on i386
  ACPI processor hotplug: Delay acpi_processor_start() call for hotplugged cores
  ACPI processor hotplug: Split up acpi_processor_add
2012-01-24 22:05:44 -08:00
Uwe Kleine-König f54367f9de Documentation/pinctrl: fix a few syntax errors in code examples
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-01-24 22:47:45 +01:00
Jim Cromie 85f7f6c0ed dynamic_debug: process multiple debug-queries on a line
Insert ddebug_exec_queries() in place of ddebug_exec_query().  It
splits the query string on [;\n], and calls ddebug_exec_query() on
each.  All queries are processed independent of errors, allowing a
query to fail, for example when a module is not installed.  Empty
lines and comments are skipped.  Errors are counted, and the last
error seen (negative) or the number of callsites found (0 or positive)
is returned.  Return code checks are altered accordingly.

With this, multiple queries can be given in ddebug_query, allowing
more selective enabling of callsites.  As a side effect, a set of
commands can be batched in:

	cat cmd-file > $DBGMT/dynamic_debug/control

We dont want a ddebug_query syntax error to kill the dynamic debug
facility, so dynamic_debug_init() zeros ddebug_exec_queries()'s return
code after logging the appropriate message, so that ddebug tables are
preserved and $DBGMT/dynamic_debug/control file is created.  This
would be appropriate even without accepting multiple queries.

This patch also alters ddebug_change() to return number of callsites
matched (which typically is the same as number of callsites changed).
ddebug_exec_query() also returns the number found, or a negative value
if theres a parse error on the query.

Splitting on [;\n] prevents their use in format-specs, but selecting
callsites on punctuation is brittle anyway, meaningful and selective
substrings are more typical.

Note: splitting queries on ';' before handling trailing #comments
means that a ';' also terminates a comment, and text after the ';' is
treated as another query.  This trailing query will almost certainly
result in a parse error and thus have no effect other than the error
message.  The double corner case with unexpected results is:

     ddebug_query="func foo +p # enable foo ; +p"

Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
Signed-off-by: Jason Baron <jbaron@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2012-01-24 12:50:36 -08:00
Jim Cromie 2b6783191d dynamic_debug: add trim_prefix() to provide source-root relative paths
trim_prefix(path) skips past the absolute source path root, and
returns the pointer to the relative path from there.  It is used to
shorten the displayed path in $DBGMT/dynamic_debug/control via
ddebug_proc_show(), and in ddebug_change() to allow relative filenames
to be used in applied queries.  For example:

  ~# echo file kernel/freezer.c +p > $DBGMT/dynamic_debug/control

  kernel/freezer.c:128 [freezer]cancel_freezing p "  clean up: %s\012"

trim_prefix(path) insures common prefix before trimming it, so
out-of-tree module paths are shown as full absolute paths.

Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
Signed-off-by: Jason Baron <jbaron@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2012-01-24 12:48:55 -08:00
Greg Kroah-Hartman 8381b5e88a stable: update documentation to ask for kernel version
It would save me an email round-trip asking which stable tree(s) that a
patch should be applied to, so document that the tree number should be
specified in the email request.

Reported-by: Tomoya MORINAGA <tomoya.rohm@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2012-01-24 10:50:22 -08:00
Wolfram Sang 543f43ce87 Documentation: devres: add allocation functions to list of supported calls
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Tejun Heo <tj@kernel.org>
Cc: Randy Dunlap <rdunlap@xenotime.net>
Cc: Greg KH <gregkh@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2012-01-24 10:47:42 -08:00
Linus Torvalds ac1e3d4f5c Power management fixes for 3.3
Two fixes for regressions introduced during the merge window, one fix for
 a long-standing obscure issue in the computation of hibernate image size
 and two small PM documentation fixes.
 
 Namhyung Kim (1):
       PM / Hibernate: Correct additional pages number calculation
 
 Srivatsa S. Bhat (1):
       PM / Hibernate: Rewrite unlock_system_sleep() to fix s2disk regression
 
 Tetsuo Handa (1):
       PM / Sleep: Fix read_unlock_usermodehelper() call.
 
 Viresh Kumar (2):
       PM / Documentation: Fix spelling mistake in basic-pm-debugging.txt
       PM / Documentation: Fix minor issue in freezing_of_tasks.txt
 
  Documentation/power/basic-pm-debugging.txt |    2 +-
  Documentation/power/freezing-of-tasks.txt  |    8 ++++----
  drivers/base/firmware_class.c              |    3 +--
  include/linux/suspend.h                    |   19 +++++++++++++++++--
  kernel/power/snapshot.c                    |    3 ++-
  5 files changed, 25 insertions(+), 10 deletions(-)
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Merge tag 'pm-fixes-for-3.3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Power management fixes for 3.3

Two fixes for regressions introduced during the merge window, one fix for
a long-standing obscure issue in the computation of hibernate image size
and two small PM documentation fixes.

* tag 'pm-fixes-for-3.3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  PM / Sleep: Fix read_unlock_usermodehelper() call.
  PM / Hibernate: Rewrite unlock_system_sleep() to fix s2disk regression
  PM / Hibernate: Correct additional pages number calculation
  PM / Documentation: Fix minor issue in freezing_of_tasks.txt
  PM / Documentation: Fix spelling mistake in basic-pm-debugging.txt
2012-01-23 15:11:27 -08:00
Dan Magenheimer 417fc2caef mm: cleancache: report statistics via debugfs instead of sysfs.
[v9: akpm@linux-foundation.org: sysfs->debugfs; no longer need Doc/ABI file]

Signed-off-by: Dan Magenheimer <dan.magenheimer@oracle.com>
Signed-off-by: Konrad Wilk <konrad.wilk@oracle.com>
Cc: Jan Beulich <JBeulich@novell.com>
Acked-by: Seth Jennings <sjenning@linux.vnet.ibm.com>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Hugh Dickins <hughd@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Nitin Gupta <ngupta@vflare.org>
Cc: Matthew Wilcox <matthew@wil.cx>
Cc: Chris Mason <chris.mason@oracle.com>
Cc: Rik Riel <riel@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
2012-01-23 16:07:50 -05:00
Dan Magenheimer 3167760f83 mm: cleancache: s/flush/invalidate/
Per akpm suggestions alter the use of the term flush to be
invalidate. The next patch will do this across all MM.

This change is completely cosmetic.

[v9: akpm@linux-foundation.org: change "flush" to "invalidate", part 3]

Signed-off-by: Dan Magenheimer <dan.magenheimer@oracle.com>
Cc: Kamezawa Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Jan Beulich <JBeulich@novell.com>
Reviewed-by: Seth Jennings <sjenning@linux.vnet.ibm.com>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Hugh Dickins <hughd@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Nitin Gupta <ngupta@vflare.org>
Cc: Matthew Wilcox <matthew@wil.cx>
Cc: Chris Mason <chris.mason@oracle.com>
Cc: Rik Riel <riel@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
[v10: Fixed  fs: move code out of buffer.c conflict change]
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2012-01-23 16:06:24 -05:00
Hans Verkuil 583aa3a9b5 [media] V4L2: Add per-device-node capabilities
If V4L2_CAP_DEVICE_CAPS is set, then the new device_caps field is filled with
the capabilities of the opened device node.

The capabilities field traditionally contains the capabilities of the physical
device, being a superset of all capabilities available at the several device
nodes. E.g., if you open /dev/video0, then if it contains VBI caps then that means
that there is a corresponding vbi node as well. And the capabilities field of
both the video and vbi nodes should contain identical caps.

However, it would be very useful to also have a capabilities field that contains
just the caps for the currently open device, hence the new CAP bit and field.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-23 16:34:27 -02:00
Randy Dunlap b4d2085936 docbook: fix sched source file names in device-drivers book
Fix warning since kernel scheduler functions and kernel-doc
notation were moved to other files.

docproc: lnx-33-rc1/kernel/sched.c: No such file or directory

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-01-23 08:44:54 -08:00
Randy Dunlap 4e35d28751 docbook: change iomap source filename in deviceiobook
Fix warning since kernel-doc comments were moved to another
source file.

Warning(lib/iomap.c): no structured comments found

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-01-23 08:44:54 -08:00
Randy Dunlap 73e4a98739 docbook: don't use serial_core.h in device-drivers book
Fix new kernel-doc warning.  This file no longer contains
kernel-doc comments.

Warning(include/linux/serial_core.h): no structured comments found

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-01-23 08:44:54 -08:00
Jean Delvare 2d58d7ea91 thermal: Rename generate_netlink_event
It doesn't seem right for the thermal subsystem to export a symbol
named generate_netlink_event. This function is thermal-specific and
its name should reflect that fact. Rename it to
thermal_generate_netlink_event.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: R.Durgadoss <durgadoss.r@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2012-01-23 03:15:25 -05:00
Nicolas Ferre 08a52e1bef ARM: at91: removal of CAP9 SoC family
Atmel CAP9 family is not maintained well and products may be
difficult to find now. It will allow to save workforce and
remove LOC during current cleanup process.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2012-01-20 15:08:38 +01:00
Stephen Boyd 070b907922 regulator: Add devm_regulator_get()
Add a resource managed regulator_get() to simplify regulator
usage in drivers. This allows driver authors to "get and forget"
about their regulators by automatically calling regulator_put()
when the driver is detached.

[Fixed up a couple of coding style issues -- broonie]

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-01-20 12:02:55 +00:00
Viresh Kumar 5eb6f9ad96 PM / Documentation: Fix minor issue in freezing_of_tasks.txt
In a paragraph, "kernel thread" is mistakenly written as "kernel". Fix this by
adding thread after word "kernel".

Changes are shown in multiple lines, as they are realigned to 80 col width.

Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-01-19 23:22:49 +01:00
Viresh Kumar f581b63aa1 PM / Documentation: Fix spelling mistake in basic-pm-debugging.txt
Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-01-19 23:22:38 +01:00
David Howells 700920eb5b KEYS: Allow special keyrings to be cleared
The kernel contains some special internal keyrings, for instance the DNS
resolver keyring :

2a93faf1 I-----     1 perm 1f030000     0     0 keyring   .dns_resolver: empty

It would occasionally be useful to allow the contents of such keyrings to be
flushed by root (cache invalidation).

Allow a flag to be set on a keyring to mark that someone possessing the
sysadmin capability can clear the keyring, even without normal write access to
the keyring.

Set this flag on the special keyrings created by the DNS resolver, the NFS
identity mapper and the CIFS identity mapper.

Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Jeff Layton <jlayton@redhat.com>
Acked-by: Steve Dickson <steved@redhat.com>
Signed-off-by: James Morris <jmorris@namei.org>
2012-01-19 14:38:51 +11:00
Linus Torvalds 4ba3069fea Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (26 commits)
  target: Set additional sense length field in sense data
  target: Remove legacy device status check from transport_execute_tasks
  target: Remove __transport_execute_tasks() for each processing context
  target: Remove extra se_device->execute_task_lock access in fast path
  target: Drop se_device TCQ queue_depth usage from I/O path
  target: Fix possible NULL pointer with __transport_execute_tasks
  target: Remove TFO->check_release_cmd() fabric API caller
  tcm_fc: Convert ft_send_work to use target_submit_cmd
  target: Add target_submit_cmd() for process context fabric submission
  target: Make target_put_sess_cmd use target_release_cmd_kref
  target: Set response format in INQUIRY response
  target: tcm_mod_builder: small fixups
  Documentation/target: Fix tcm_mod_builder.py build breakage
  target: remove overagressive ____cacheline_aligned annoations
  tcm_loop: bump max_sectors
  target/configs: remove trailing newline from udev_path and alias
  iscsi-target: fix chap identifier simple_strtoul usage
  target: remove useless casts
  target: simplify target_check_cdb_and_preempt
  target: Move core_scsi3_check_cdb_abort_and_preempt
  ...
2012-01-18 15:59:18 -08:00
Linus Torvalds 507a03c1cb Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux
This includes initial support for the recently published ACPI 5.0 spec.
In particular, support for the "hardware-reduced" bit that eliminates
the dependency on legacy hardware.

APEI has patches resulting from testing on real hardware.

Plus other random fixes.

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux: (52 commits)
  acpi/apei/einj: Add extensions to EINJ from rev 5.0 of acpi spec
  intel_idle: Split up and provide per CPU initialization func
  ACPI processor: Remove unneeded variable passed by acpi_processor_hotadd_init V2
  ACPI processor: Remove unneeded cpuidle_unregister_driver call
  intel idle: Make idle driver more robust
  intel_idle: Fix a cast to pointer from integer of different size warning in intel_idle
  ACPI: kernel-parameters.txt : Add intel_idle.max_cstate
  intel_idle: remove redundant local_irq_disable() call
  ACPI processor: Fix error path, also remove sysdev link
  ACPI: processor: fix acpi_get_cpuid for UP processor
  intel_idle: fix API misuse
  ACPI APEI: Convert atomicio routines
  ACPI: Export interfaces for ioremapping/iounmapping ACPI registers
  ACPI: Fix possible alignment issues with GAS 'address' references
  ACPI, ia64: Use SRAT table rev to use 8bit or 16/32bit PXM fields (ia64)
  ACPI, x86: Use SRAT table rev to use 8bit or 32bit PXM fields (x86/x86-64)
  ACPI: Store SRAT table revision
  ACPI, APEI, Resolve false conflict between ACPI NVS and APEI
  ACPI, Record ACPI NVS regions
  ACPI, APEI, EINJ, Refine the fix of resource conflict
  ...
2012-01-18 15:51:48 -08:00
Linus Torvalds aa303f2c06 Merge branch 'for-linus/i2c-33' of git://git.fluff.org/bjdooks/linux
* 'for-linus/i2c-33' of git://git.fluff.org/bjdooks/linux:
  i2c-eg20t: Change-company-name-OKI-SEMICONDUCTOR to LAPIS Semiconductor
  i2c-eg20t: Support new device LAPIS Semiconductor ML7831 IOH
  i2c-eg20t: modified the setting of transfer rate.
  i2c-eg20t: use i2c_add_numbered_adapter to get a fixed bus number
  i2c: OMAP: Add DT support for i2c controller
  I2C: OMAP: NACK without STP
  I2C: OMAP: correct SYSC register offset for OMAP4
2012-01-18 13:46:13 -08:00
Linus Torvalds 4a7c1ff236 Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (57 commits)
  [media] as3645a: Fix compilation by including slab.h
  [media] s5p-fimc: Remove linux/version.h include from fimc-mdevice.c
  [media] s5p-mfc: Remove linux/version.h include from s5p_mfc.c
  [media] ds3000: using logical && instead of bitwise &
  [media] v4l2-ctrls: make control names consistent
  [media] DVB: dib0700, add support for Nova-TD LEDs
  [media] DVB: dib0700, add corrected Nova-TD frontend_attach
  [media] DVB: dib0700, separate stk7070pd initialization
  [media] DVB: dib0700, move Nova-TD Stick to a separate set
  [media] : add MODULE_FIRMWARE to dib0700
  [media] DVB-CORE: remove superfluous DTV_CMDs
  [media] s5p-jpeg: adapt to recent videobuf2 changes
  [media] s5p-g2d: fixed a bug in controls setting function
  [media] s5p-mfc: Fix volatile controls setup
  [media] drivers/media/video/s5p-mfc/s5p_mfc.c: adjust double test
  [media] drivers/media/video/s5p-fimc/fimc-capture.c: adjust double test
  [media] s5p-fimc: Fix incorrect control ID assignment
  [media] dvb_frontend: Don't call get_frontend() if idle
  [media] DocBook/dvbproperty.xml: Remove DTV_MODULATION from ISDB-T
  [media] DocBook/dvbproperty.xml: Fix ISDB-T delivery system parameters
  ...
2012-01-18 12:53:54 -08:00
Linus Torvalds d71f5be276 SCSI updates on 20120118
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6

SCSI updates on 20120118

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (49 commits)
  [SCSI] libfc: remove redundant timer init for fcp
  [SCSI] fcoe: Move fcoe_debug_logging from fcoe.h to fcoe.c
  [SCSI] libfc: Declare local functions static
  [SCSI] fcoe: fix regression on offload em matching function for initiator/target
  [SCSI] qla4xxx: Update driver version to 5.02.00-k12
  [SCSI] qla4xxx: Cleanup modinfo display
  [SCSI] qla4xxx: Update license
  [SCSI] qla4xxx: Clear the RISC interrupt bit during FW init
  [SCSI] qla4xxx: Added error logging for firmware abort
  [SCSI] qla4xxx: Disable generating pause frames in case of FW hung
  [SCSI] qla4xxx: Temperature monitoring for ISP82XX core.
  [SCSI] megaraid: fix sparse warnings
  [SCSI] sg: convert to kstrtoul_from_user()
  [SCSI] don't change sdev starvation list order without request dispatched
  [SCSI] isci: fix, prevent port from getting stuck in the 'configuring' state
  [SCSI] isci: fix start OOB
  [SCSI] isci: fix io failures while wide port links are coming up
  [SCSI] isci: allow more time for wide port targets
  [SCSI] isci: enable wide port targets
  [SCSI] isci: Fix IO fails when pull cable from phy in x4 wideport in MPC mode.
  ...
2012-01-18 12:35:17 -08:00
Linus Torvalds 92b5abbb44 Merge git://git.infradead.org/users/willy/linux-nvme
* git://git.infradead.org/users/willy/linux-nvme: (105 commits)
  NVMe: Set number of queues correctly
  NVMe: Version 0.8
  NVMe: Set queue flags correctly
  NVMe: Simplify nvme_unmap_user_pages
  NVMe: Mark the end of the sg list
  NVMe: Fix DMA mapping for admin commands
  NVMe: Rename IO_TIMEOUT to NVME_IO_TIMEOUT
  NVMe: Merge the nvme_bio and nvme_prp data structures
  NVMe: Change nvme_completion_fn to take a dev
  NVMe: Change get_nvmeq to take a dev instead of a namespace
  NVMe: Simplify completion handling
  NVMe: Update Identify Controller data structure
  NVMe: Implement doorbell stride capability
  NVMe: Version 0.7
  NVMe: Don't probe namespace 0
  Fix calculation of number of pages in a PRP List
  NVMe: Create nvme_identify and nvme_get_features functions
  NVMe: Fix memory leak in nvme_dev_add()
  NVMe: Fix calls to dma_unmap_sg
  NVMe: Correct sg list setup in nvme_map_user_pages
  ...
2012-01-18 12:34:09 -08:00
Linus Torvalds ccb19d263f Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (47 commits)
  tg3: Fix single-vector MSI-X code
  openvswitch: Fix multipart datapath dumps.
  ipv6: fix per device IP snmp counters
  inetpeer: initialize ->redirect_genid in inet_getpeer()
  net: fix NULL-deref in WARN() in skb_gso_segment()
  net: WARN if skb_checksum_help() is called on skb requiring segmentation
  caif: Remove bad WARN_ON in caif_dev
  caif: Fix typo in Vendor/Product-ID for CAIF modems
  bnx2x: Disable AN KR work-around for BCM57810
  bnx2x: Remove AutoGrEEEn for BCM84833
  bnx2x: Remove 100Mb force speed for BCM84833
  bnx2x: Fix PFC setting on BCM57840
  bnx2x: Fix Super-Isolate mode for BCM84833
  net: fix some sparse errors
  net: kill duplicate included header
  net: sh-eth: Fix build error by the value which is not defined
  net: Use device model to get driver name in skb_gso_segment()
  bridge: BH already disabled in br_fdb_cleanup()
  net: move sock_update_memcg outside of CONFIG_INET
  mwl8k: Fixing Sparse ENDIAN CHECK warning
  ...
2012-01-17 22:26:41 -08:00
Len Brown 79ba0db69c Merge branches 'einj', 'intel_idle', 'misc', 'srat' and 'turbostat-ivb' into release 2012-01-18 01:15:54 -05:00
Tony Luck c130bd6f82 acpi/apei/einj: Add extensions to EINJ from rev 5.0 of acpi spec
ACPI 5.0 provides extensions to the EINJ mechanism to specify the
target for the error injection - by APICID for cpu related errors,
by address for memory related errors, and by segment/bus/device/function
for PCIe related errors. Also extensions for vendor specific error
injections.

Tested-by: Chen Gong <gong.chen@linux.intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2012-01-18 01:14:17 -05:00
Linus Torvalds 57f2685c16 Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma
* 'next' of git://git.infradead.org/users/vkoul/slave-dma: (53 commits)
  ARM: mach-shmobile: specify CHCLR registers on SH7372
  dma: shdma: fix runtime PM: clear channel buffers on reset
  dma/imx-sdma: save irq flags when use spin_lock in sdma_tx_submit
  dmaengine/ste_dma40: clear LNK on channel startup
  dmaengine: intel_mid_dma: remove legacy pm interface
  ASoC: mxs: correct 'direction' of device_prep_dma_cyclic
  dmaengine: intel_mid_dma: error path fix
  dmaengine: intel_mid_dma: locking and freeing fixes
  mtd: gpmi-nand: move to dma_transfer_direction
  mtd: fix compile error for gpmi-nand
  mmc: mxs-mmc: fix the dma_transfer_direction migration
  dmaengine: add DMA_TRANS_NONE to dma_transfer_direction
  dma: mxs-dma: Don't use CLKGATE bits in CTRL0 to disable DMA channels
  dma: mxs-dma: make mxs_dma_prep_slave_sg() multi user safe
  dma: mxs-dma: Always leave mxs_dma_init() with the clock disabled.
  dma: mxs-dma: fix a typo in comment
  DMA: PL330: Remove pm_runtime_xxx calls from pl330 probe/remove
  video i.MX IPU: Fix display connections
  i.MX IPU DMA: Fix wrong burstsize settings
  dmaengine/ste_dma40: allow fixed physical channel
  ...

Fix up conflicts in drivers/dma/{Kconfig,mxs-dma.c,pl330.c}

The conflicts looked pretty trivial, but I'll ask people to verify them.
2012-01-17 18:40:24 -08:00
Ben Dooks 6f36a806e5 Merge branches 'for-33/i2c/eg20t' and 'for-33/i2c/omap' into for-linus/i2c-33 2012-01-17 23:30:41 +00:00
Benoit Cousson 6145197be6 i2c: OMAP: Add DT support for i2c controller
Add initial DT support to retrieve the frequency using a
DT attribute instead of the pdata pointer if of_node exist.

Add documentation for omap i2c controller binding.

Based on original patches from Manju and Grant.

Signed-off-by: Benoit Cousson <b-cousson@ti.com>
Cc: Ben Dooks <ben-linux@fluff.org>
Reviewed-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Kevin Hilman <khilman@ti.com>
2012-01-17 22:44:57 +00:00
Masanari Iida 2e92c7ad8f ACPI: kernel-parameters.txt : Add intel_idle.max_cstate
Add missing intel_idle.max_cstate in kernel-parameters.txt

Signed-off-by Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2012-01-17 14:19:58 -05:00
Mauro Carvalho Chehab 7bb0f088f8 [media] DocBook/dvbproperty.xml: Remove DTV_MODULATION from ISDB-T
On ISDB-T, each layer can have its own independent modulation,
applied to the carriers that belong to the segments associated
with them. So, there's no sense to define a global modulation
parameter.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-17 10:00:41 -02:00
Mauro Carvalho Chehab b5dad9fdd8 [media] DocBook/dvbproperty.xml: Fix ISDB-T delivery system parameters
The ISDB-T differs on its way to implement the hierarchical
transmissions: instead of using a low-priority/high-priority
FEC codes, it does that by using different layers, each layer
with their groups of segments. So, those parameters don't make sense
for ISDB-T.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-17 09:49:28 -02:00
Mauro Carvalho Chehab a34e2a784f [media] DocBook/dvbproperty.xml: Fix the units for DTV_FREQUENCY
The units for DTV_FREQUENCY are kHz for satellital delivery systems
(DVB-S/DVB-S2/DVB-TURBO/ISDB-S). Fix it at the API spec.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-17 09:45:48 -02:00
Linus Torvalds 5674124f9f Merge branch 'x86-syscall-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
* 'x86-syscall-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86: Move <asm/asm-offsets.h> from trace_syscalls.c to asm/syscall.h
  x86, um: Fix typo in 32-bit system call modifications
  um: Use $(srctree) not $(KBUILD_SRC)
  x86, um: Mark system call tables readonly
  x86, um: Use the same style generated syscall tables as native
  um: Generate headers before generating user-offsets.s
  um: Run host archheaders, allow use of host generated headers
  kbuild, headers.sh: Don't make archheaders explicitly
  x86, syscall: Allow syscall offset to be symbolic
  x86, syscall: Re-fix typo in comment
  x86: Simplify syscallhdr.sh
  x86: Generate system call tables and unistd_*.h from tables
  checksyscalls: Use arch/x86/syscalls/syscall_32.tbl as source
  x86: Machine-readable syscall tables and scripts to process them
  trace: Include <asm/asm-offsets.h> in trace_syscalls.c
  x86-64, ia32: Move compat_ni_syscall into C and its own file
  x86-64, syscall: Adjust comment spacing and remove typo
  kbuild: Add support for an "archheaders" target
  kbuild: Add support for installing generated asm headers
2012-01-16 18:19:19 -08:00
Linus Torvalds adfeb6e9f4 Merge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging
* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
  hwmon: (sysfs-interface) Update tempX_type attribute to be more generic
  hwmon: (adm1031) Fix coding style issues
  hwmon: (it87) Add IT8728F support
  hwmon: (coretemp) Add missing section annotations
  hwmon: (lm90) Add range check to set_update_interval
  hwmon: (lm63) Support extended lookup table of LM96163
  hwmon: (lm63) Expose automatic fan speed control lookup table
  hwmon: (lm63) Fix incorrect comment about I2C address
  hwmon: (lm63) LM64 has a dedicated pin for tachometer
  hwmon: (lm63) Add sensor type attribute for external sensor on LM96163
  hwmon: (lm63) Add support for update_interval sysfs attribute
  hwmon: (lm63) Add support for writing the external critical temperature
  hwmon: (lm63) Add support for unsigned upper temperature limits
  hwmon: (lm63) Add support for LM96163
  hwmon: (lm63) Add support for external temperature offset register
  hwmon: (lm63) Fix checkpatch errors
  hwmon: (max1111) Change sysfs interface to in[0-3]_input in millivolts
2012-01-16 15:07:46 -08:00
Linus Torvalds 408e057870 Merge branch 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild
* 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
  scripts/coccinelle: improve the coverage of some semantic patches
  coccinelle: semantic patches related to devm_ functions (part 2)
  coccinelle: semantic patches related to devm_ functions (part 1)
  coccinelle.txt: update documentation to include M= option
  coccicheck: add M= option to control which dir is processed
  ctags: remove struct forward declarations
  scripts/tags.sh: Add Page flag function magic
2012-01-16 14:36:07 -08:00
Guenter Roeck 5f8b1f877e hwmon: (sysfs-interface) Update tempX_type attribute to be more generic
The temp[1-*]_type attribute reports the temperature sensor type. Sensor type 1
is described as "PII/Celeron Diode", which is quite restrictive; other CPUs
may also have an embedded temperature sensor diode with similar characteristics.
Change description to "CPU embedded diode" to be more generic.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2012-01-16 22:51:48 +01:00
Jean Delvare 16b5dda22e hwmon: (it87) Add IT8728F support
Until we get a datasheet for the IT8728F, treat it as fully compatible
with the IT8721F, as it seems to work reasonably well.

This closes kernel bug #27262.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Guenter Roeck <guenter.roeck@ericsson.com>
2012-01-16 22:51:48 +01:00
Jean Delvare d216f6809e hwmon: (lm63) Expose automatic fan speed control lookup table
The LM63 and compatible devices have a lookup table to control the fan
speed automatically. Expose it in sysfs. Values are cached for 5
seconds, independently of the other register values to avoid slowing
down "sensors". We might make the table values writable in the future.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Tested-by: Guenter Roeck <guenter.roeck@ericsson.com>
Acked-by: Guenter Roeck <guenter.roeck@ericsson.com>
2012-01-16 22:51:47 +01:00
Jean Delvare 409c0b5bdf hwmon: (lm63) LM64 has a dedicated pin for tachometer
On the LM64, the tachometer function has a dedicated pin and fan speed
monitoring is always enabled.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Guenter Roeck <guenter.roeck@ericsson.com>
2012-01-16 22:51:46 +01:00
Guenter Roeck f496b2d4f1 hwmon: (lm63) Add sensor type attribute for external sensor on LM96163
On LM96163, the external temperature sensor type is configurable to
either a thermal diode or a 3904 transistor. The chip reports a wrong
temperature if misconfigured. Add writable attribute to support it.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2012-01-16 22:51:46 +01:00
Guenter Roeck 04738b2b2f hwmon: (lm63) Add support for update_interval sysfs attribute
The update interval is configurable on LM63 and compatibles. Add
support for it.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2012-01-16 22:51:46 +01:00
Guenter Roeck 210961c436 hwmon: (lm63) Add support for LM96163
LM96163 is an enhanced version of LM63 with improved PWM resolution. Add chip
detection code as well as support for improved PWM resolution if the chip is
configured to use it.

Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Tested-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2012-01-16 22:51:45 +01:00
Hans Verkuil aa07eec532 [media] v4l2-ioctl: make tuner 'type' check more strict for S_FREQUENCY
As per the feature removal document, make the tuner type check more strict
so that it is no longer possible to set the radio frequency through a video
node or the TV frequency through a radio node.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-16 09:58:53 -02:00
Hans Verkuil dacd4fa37d [media] V4L2 Spec: improve the G/S_INPUT/OUTPUT documentation
As Rupert pointed out, the phrase "It is good practice" should be replaced
with "You must".

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: Rupert Eibauer <Rupert.Eibauer@ces.ch>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-16 09:38:29 -02:00
Hans Verkuil 6055b12ae0 [media] V4L2 Spec: fix extended control documentation
Update the spec to the behavior implemented by the control framework.
This should have been documented long ago but for some reason it was
never done.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-16 09:37:53 -02:00
Hans Verkuil 05834fcf58 [media] v4l2 spec: clarify usage of V4L2_FBUF_FLAG_OVERLAY
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-16 09:35:55 -02:00
Vikas Chaudhary 991039f9f4 [SCSI] qla4xxx: Update license
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-01-16 12:34:12 +04:00
adam radford 798edaadba [SCSI] megaraid_sas: Version and Changelog update
Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-01-16 11:28:33 +04:00
Linus Torvalds 122804ecb5 Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (655 commits)
  [media] revert patch: HDIC HD29L2 DMB-TH USB2.0 reference design driver
  mb86a20s: Add a few more register settings at the init seq
  mb86a20s: Group registers into the same line
  [media] [PATCH] don't reset the delivery system on DTV_CLEAR
  [media] [BUG] it913x-fe fix typo error making SNR levels unstable
  [media] cx23885: Query the CX25840 during enum_input for status
  [media] cx25840: Add support for g_input_status
  [media] rc-videomate-m1f.c Rename to match remote controler name
  [media] drivers: media: au0828: Fix dependency for VIDEO_AU0828
  [media] convert drivers/media/* to use module_platform_driver()
  [media] drivers: video: cx231xx: Fix dependency for VIDEO_CX231XX_DVB
  [media] Exynos4 JPEG codec v4l2 driver
  [media] doc: v4l: selection: choose pixels as units for selection rectangles
  [media] v4l: s5p-tv: mixer: fix setup of VP scaling
  [media] v4l: s5p-tv: mixer: add support for selection API
  [media] v4l: emulate old crop API using extended crop/compose API
  [media] doc: v4l: add documentation for selection API
  [media] doc: v4l: add binary images for selection API
  [media] v4l: add support for selection api
  [media] hd29l2: fix review findings
  ...
2012-01-15 12:49:56 -08:00
Linus Torvalds 83c2f912b4 Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (39 commits)
  perf tools: Fix compile error on x86_64 Ubuntu
  perf report: Fix --stdio output alignment when --showcpuutilization used
  perf annotate: Get rid of field_sep check
  perf annotate: Fix usage string
  perf kmem: Fix a memory leak
  perf kmem: Add missing closedir() calls
  perf top: Add error message for EMFILE
  perf test: Change type of '-v' option to INCR
  perf script: Add missing closedir() calls
  tracing: Fix compile error when static ftrace is enabled
  recordmcount: Fix handling of elf64 big-endian objects.
  perf tools: Add const.h to MANIFEST to make perf-tar-src-pkg work again
  perf tools: Add support for guest/host-only profiling
  perf kvm: Do guest-only counting by default
  perf top: Don't update total_period on process_sample
  perf hists: Stop using 'self' for struct hist_entry
  perf hists: Rename total_session to total_period
  x86: Add counter when debug stack is used with interrupts enabled
  x86: Allow NMIs to hit breakpoints in i386
  x86: Keep current stack in NMI breakpoints
  ...
2012-01-15 11:26:35 -08:00
Linus Torvalds 892d208bcf Kmemleak patches
Main features:
 - Handle percpu memory allocations (only scanning them, not actually
   reporting).
 - Memory hotplug support.
 
 Usability improvements:
 - Show the origin of early allocations.
 - Report previously found leaks even if kmemleak has been disabled by
   some error.
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Merge tag 'kmemleak' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux

Kmemleak patches

Main features:
- Handle percpu memory allocations (only scanning them, not actually
  reporting).
- Memory hotplug support.

Usability improvements:
- Show the origin of early allocations.
- Report previously found leaks even if kmemleak has been disabled by
  some error.

* tag 'kmemleak' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux:
  kmemleak: Add support for memory hotplug
  kmemleak: Handle percpu memory allocation
  kmemleak: Report previously found leaks even after an error
  kmemleak: When the early log buffer is exceeded, report the actual number
  kmemleak: Show where early_log issues come from
2012-01-14 18:11:11 -08:00
Linus Torvalds 51be08419d Merge branch 'fbdev-next' of git://github.com/schandinat/linux-2.6
* 'fbdev-next' of git://github.com/schandinat/linux-2.6: (175 commits)
  module_param: make bool parameters really bool (drivers/video/i810)
  Revert "atmel_lcdfb: Adjust HFP calculation so it matches the manual."
  OMAPDSS: HDMI: Disable DDC internal pull up
  OMAPDSS: HDMI: Move duplicate code from boardfile
  OMAPDSS: add OrtusTech COM43H4M10XTC display support
  OMAP: DSS2: Support for UMSH-8173MD TFT panel
  ASoC: OMAP: HDMI: Move HDMI codec trigger function to generic HDMI driver
  OMAPDSS: HDMI: Create function to enable HDMI audio
  ASoC: OMAP: HDMI: Correct signature of ASoC functions
  ASoC: OMAP: HDMI: Introduce driver data for audio codec
  grvga: fix section mismatch warnings
  video: s3c-fb: Don't keep device runtime active when open
  video: s3c-fb: Hold runtime PM references when touching registers
  video: s3c-fb: Take a runtime PM reference when unblanked
  video: s3c-fb: Disable runtime PM in error paths from probe
  video: s3c-fb: Use s3c_fb_enable() to enable the framebuffer
  video: s3c-fb: Make runtime PM functional again
  drivers/video: fsl-diu-fb: merge fsl_diu_alloc() into map_video_memory()
  drivers/video: fsl-diu-fb: add default platform ops functions
  drivers/video: fsl-diu-fb: remove broken reference count enabling the display
  ...
2012-01-14 15:11:19 -08:00
Greg Dietsche f95ab20972 coccinelle.txt: update documentation to include M= option
Adding documentation for the new M= option which limits Coccinelle
to a specific set of directories.

Signed-off-by: Greg Dietsche <Gregory.Dietsche@cuw.edu>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Michal Marek <mmarek@suse.cz>
2012-01-14 22:25:56 +01:00
Linus Torvalds 81d48f0aee 2nd set of device tree changes for v3.3
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mergetag object 14c173eb63
 type commit
 tag spi-for-linus
 tagger Grant Likely <grant.likely@secretlab.ca> 1326520366 -0700
 
 SPI bug fixes for v3.3
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Merge tags 'devicetree-for-linus' and 'spi-for-linus' of git://git.secretlab.ca/git/linux-2.6

2nd set of device tree changes and SPI bug fixes for v3.3

* tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux-2.6:
  of/irq: Add interrupts-names property to name an irq resource
  of/address: Add reg-names property to name an iomem resource

* tag 'spi-for-linus' of git://git.secretlab.ca/git/linux-2.6:
  spi/tegra: depend instead of select TEGRA_SYSTEM_DMA
2012-01-14 13:25:55 -08:00
Linus Torvalds 0a80939b3e Autogenerated GPG tag for Rusty D1ADB8F1: 15EE 8D6C AB0E 7F0C F999 BFCB D920 0E6C D1AD B8F1
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Merge tag 'for-linus' of git://github.com/rustyrussell/linux

Autogenerated GPG tag for Rusty D1ADB8F1: 15EE 8D6C AB0E 7F0C F999  BFCB D920 0E6C D1AD B8F1

* tag 'for-linus' of git://github.com/rustyrussell/linux:
  module_param: check that bool parameters really are bool.
  intelfbdrv.c: bailearly is an int module_param
  paride/pcd: fix bool verbose module parameter.
  module_param: make bool parameters really bool (drivers & misc)
  module_param: make bool parameters really bool (arch)
  module_param: make bool parameters really bool (core code)
  kernel/async: remove redundant declaration.
  printk: fix unnecessary module_param_name.
  lirc_parallel: fix module parameter description.
  module_param: avoid bool abuse, add bint for special cases.
  module_param: check type correctness for module_param_array
  modpost: use linker section to generate table.
  modpost: use a table rather than a giant if/else statement.
  modules: sysfs - export: taint, coresize, initsize
  kernel/params: replace DEBUGP with pr_debug
  module: replace DEBUGP with pr_debug
  module: struct module_ref should contains long fields
  module: Fix performance regression on modules with large symbol tables
  module: Add comments describing how the "strmap" logic works

Fix up conflicts in scripts/mod/file2alias.c due to the new linker-
generated table approach to adding __mod_*_device_table entries.  The
ARM sa11x0 mcp bus needed to be converted to that too.
2012-01-14 12:32:16 -08:00
Linus Torvalds 0b48d42235 Merge branch 'for-3.3' of git://linux-nfs.org/~bfields/linux
* 'for-3.3' of git://linux-nfs.org/~bfields/linux: (31 commits)
  nfsd4: nfsd4_create_clid_dir return value is unused
  NFSD: Change name of extended attribute containing junction
  svcrpc: don't revert to SVC_POOL_DEFAULT on nfsd shutdown
  svcrpc: fix double-free on shutdown of nfsd after changing pool mode
  nfsd4: be forgiving in the absence of the recovery directory
  nfsd4: fix spurious 4.1 post-reboot failures
  NFSD: forget_delegations should use list_for_each_entry_safe
  NFSD: Only reinitilize the recall_lru list under the recall lock
  nfsd4: initialize special stateid's at compile time
  NFSd: use network-namespace-aware cache registering routines
  SUNRPC: create svc_xprt in proper network namespace
  svcrpc: update outdated BKL comment
  nfsd41: allow non-reclaim open-by-fh's in 4.1
  svcrpc: avoid memory-corruption on pool shutdown
  svcrpc: destroy server sockets all at once
  svcrpc: make svc_delete_xprt static
  nfsd: Fix oops when parsing a 0 length export
  nfsd4: Use kmemdup rather than duplicating its implementation
  nfsd4: add a separate (lockowner, inode) lookup
  nfsd4: fix CONFIG_NFSD_FAULT_INJECTION compile error
  ...
2012-01-14 12:26:41 -08:00
Linus Torvalds 2145199c4f Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  dma-buf: Documentation update for Kconfig select
  nouveau: Support Optimus models for vga_switcheroo
  nouveau: properly check for _DSM function support
  dma-buf: drop option text so users don't select it.
  radeon: Call pci_clear_master() instead of open-coding it.
  gma500: Discard modes that don't fit in stolen memory
  drm: bump DRM_CONNECTOR_MAX_ENCODER from 2 to 3
  drm/radeon/kms: Fix module parameter description format
  drm/radeon/kms/ni: fix packet2 handling for VM IB parser
  ttm/dma: Remove the WARN() which is not useful.
2012-01-13 20:48:42 -08:00
Linus Torvalds 21ebd6c68b Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6
* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6: (59 commits)
  rtc: max8925: Add function to work as wakeup source
  mfd: Add pm ops to max8925
  mfd: Convert aat2870 to dev_pm_ops
  mfd: Still check other interrupts if we get a wm831x touchscreen IRQ
  mfd: Introduce missing kfree in 88pm860x probe routine
  mfd: Add S5M series configuration
  mfd: Add s5m series irq driver
  mfd: Add S5M core driver
  mfd: Improve mc13xxx dt binding document
  mfd: Fix stmpe section mismatch
  mfd: Fix stmpe build warning
  mfd: Fix STMPE I2c build failure
  mfd: Constify aat2870-core i2c_device_id table
  gpio: Add support for stmpe variant 801
  mfd: Add support for stmpe variant 801
  mfd: Add support for stmpe variant 610
  mfd: Add support for STMPE SPI interface
  mfd: Separate out STMPE controller and interface specific code
  misc: Remove max8997-muic sysfs attributes
  mfd: Remove unused wm831x_irq_data_to_mask_reg()
  ...

Fix up trivial conflict in drivers/leds/Kconfig due to addition of
LEDS_MAX8997 and LEDS_TCA6507 next to each other.
2012-01-13 20:43:32 -08:00
Linus Torvalds 4b8be38cf7 MMC highlights for 3.3:
Core:
  * Support for the HS200 high-speed eMMC mode.
  * Support SDIO 3.0 Ultra High Speed cards.
  * Kill pending block requests immediately if card is removed.
  * Enable the eMMC feature for locking boot partitions read-only
    until next power on, exposed via sysfs.
 
 Drivers:
  * Runtime PM support for Intel Medfield SDIO.
  * Suspend/resume support for sdhci-spear.
  * sh-mmcif now processes requests asynchronously.
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Merge tag 'mmc-merge-for-3.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc

MMC highlights for 3.3:

Core:
 * Support for the HS200 high-speed eMMC mode.
 * Support SDIO 3.0 Ultra High Speed cards.
 * Kill pending block requests immediately if card is removed.
 * Enable the eMMC feature for locking boot partitions read-only
   until next power on, exposed via sysfs.

Drivers:
 * Runtime PM support for Intel Medfield SDIO.
 * Suspend/resume support for sdhci-spear.
 * sh-mmcif now processes requests asynchronously.

* tag 'mmc-merge-for-3.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc: (58 commits)
  mmc: fix a deadlock between system suspend and MMC block IO
  mmc: sdhci: restore the enabled dma when do reset all
  mmc: dw_mmc: miscaculated the fifo-depth with wrong bit operation
  mmc: host: Adds support for eMMC 4.5 HS200 mode
  mmc: core: HS200 mode support for eMMC 4.5
  mmc: dw_mmc: fixed wrong bit operation for SDMMC_GET_FCNT()
  mmc: core: Separate the timeout value for cache-ctrl
  mmc: sdhci-spear: Fix compilation error
  mmc: sdhci: Deal with failure case in sdhci_suspend_host
  mmc: dw_mmc: Clear the DDR mode for non-DDR
  mmc: sd: Fix SDR12 timing regression
  mmc: sdhci: Fix tuning timer incorrect setting when suspending host
  mmc: core: Add option to prevent eMMC sleep command
  mmc: omap_hsmmc: use threaded irq handler for card-detect.
  mmc: sdhci-pci: enable runtime PM for Medfield SDIO
  mmc: sdhci: Always pass clock request value zero to set_clock host op
  mmc: sdhci-pci: remove SDHCI_QUIRK2_OWN_CARD_DETECTION
  mmc: sdhci-pci: get gpio numbers from platform data
  mmc: sdhci-pci: add platform data
  mmc: sdhci: prevent card detection activity for non-removable cards
  ...
2012-01-13 20:41:15 -08:00
Linus Torvalds 96e80a7851 Merge git://git.kernel.org/pub/scm/linux/kernel/git/pkl/squashfs-next
* git://git.kernel.org/pub/scm/linux/kernel/git/pkl/squashfs-next:
  Squashfs: fix i_blocks calculation with extended regular files
  Squashfs: fix mount time sanity check for corrupted superblock
  Squashfs: optimise squashfs_cache_get entry search
  Squashfs: Update documentation to include xattrs
  Squashfs: add missing block release on error condition
2012-01-13 10:34:57 -08:00
Linus Torvalds 1a52bb0b68 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
  ceph: ensure prealloc_blob is in place when removing xattr
  rbd: initialize snap_rwsem in rbd_add()
  ceph: enable/disable dentry complete flags via mount option
  vfs: export symbol d_find_any_alias()
  ceph: always initialize the dentry in open_root_dentry()
  libceph: remove useless return value for osd_client __send_request()
  ceph: avoid iput() while holding spinlock in ceph_dir_fsync
  ceph: avoid useless dget/dput in encode_fh
  ceph: dereference pointer after checking for NULL
  crush: fix force for non-root TAKE
  ceph: remove unnecessary d_fsdata conditional checks
  ceph: Use kmemdup rather than duplicating its implementation

Fix up conflicts in fs/ceph/super.c (d_alloc_root() failure handling vs
always initialize the dentry in open_root_dentry)
2012-01-13 10:29:21 -08:00
stephen hemminger 7c7c7f01cc vhost-net: add module alias (v2.1)
By adding some module aliases, programs (or users) won't have to explicitly
call modprobe. Vhost-net will always be available if built into the kernel.
It does require assigning a permanent minor number for depmod to work.

Also:
  - use C99 style initialization.
  - add missing entry in documentation for loop-control

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Acked-By: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-13 10:12:23 -08:00
Sumit Semwal 081794564e dma-buf: Documentation update for Kconfig select
As per Linus' comment, dma-buf Kconfig entry shouldn't have an option
text, but should be selected by the subsystems that use it.

Add this information in the documentation as well.

Signed-off-by: Sumit Semwal <sumit.semwal@ti.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-01-13 10:27:33 +00:00
Linus Torvalds 099469502f Merge branch 'akpm' (aka "Andrew's patch-bomb, take two")
Andrew explains:

 - various misc stuff

 - Most of the rest of MM: memcg, threaded hugepages, others.

 - cpumask

 - kexec

 - kdump

 - some direct-io performance tweaking

 - radix-tree optimisations

 - new selftests code

   A note on this: often people will develop a new userspace-visible
   feature and will develop userspace code to exercise/test that
   feature.  Then they merge the patch and the selftest code dies.
   Sometimes we paste it into the changelog.  Sometimes the code gets
   thrown into Documentation/(!).

   This saddens me.  So this patch creates a bare-bones framework which
   will henceforth allow me to ask people to include their test apps in
   the kernel tree so we can keep them alive.  Then when people enhance
   or fix the feature, I can ask them to update the test app too.

   The infrastruture is terribly trivial at present - let's see how it
   evolves.

 - checkpoint/restart feature work.

   A note on this: this is a project by various mad Russians to perform
   c/r mainly from userspace, with various oddball helper code added
   into the kernel where the need is demonstrated.

   So rather than some large central lump of code, what we have is
   little bits and pieces popping up in various places which either
   expose something new or which permit something which is normally
   kernel-private to be modified.

   The overall project is an ongoing thing.  I've judged that the size
   and scope of the thing means that we're more likely to be successful
   with it if we integrate the support into mainline piecemeal rather
   than allowing it all to develop out-of-tree.

   However I'm less confident than the developers that it will all
   eventually work! So what I'm asking them to do is to wrap each piece
   of new code inside CONFIG_CHECKPOINT_RESTORE.  So if it all
   eventually comes to tears and the project as a whole fails, it should
   be a simple matter to go through and delete all trace of it.

This lot pretty much wraps up the -rc1 merge for me.

* akpm: (96 commits)
  unlzo: fix input buffer free
  ramoops: update parameters only after successful init
  ramoops: fix use of rounddown_pow_of_two()
  c/r: prctl: add PR_SET_MM codes to set up mm_struct entries
  c/r: procfs: add start_data, end_data, start_brk members to /proc/$pid/stat v4
  c/r: introduce CHECKPOINT_RESTORE symbol
  selftests: new x86 breakpoints selftest
  selftests: new very basic kernel selftests directory
  radix_tree: take radix_tree_path off stack
  radix_tree: remove radix_tree_indirect_to_ptr()
  dio: optimize cache misses in the submission path
  vfs: cache request_queue in struct block_device
  fs/direct-io.c: calculate fs_count correctly in get_more_blocks()
  drivers/parport/parport_pc.c: fix warnings
  panic: don't print redundant backtraces on oops
  sysctl: add the kernel.ns_last_pid control
  kdump: add udev events for memory online/offline
  include/linux/crash_dump.h needs elf.h
  kdump: fix crash_kexec()/smp_send_stop() race in panic()
  kdump: crashk_res init check for /sys/kernel/kexec_crash_size
  ...
2012-01-12 20:42:54 -08:00
Cyrill Gorcunov b3f7f573a2 c/r: procfs: add start_data, end_data, start_brk members to /proc/$pid/stat v4
The mm->start_code/end_code, mm->start_data/end_data, mm->start_brk are
involved into calculation of program text/data segment sizes (which might
be seen in /proc/<pid>/statm) and into brk() call final address.

For restore we need to know all these values.  While
mm->start_code/end_code already present in /proc/$pid/stat, the rest
members are not, so this patch brings them in.

The restore procedure of these members is addressed in another patch using
prctl().

Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Acked-by: Serge Hallyn <serge.hallyn@canonical.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Andrew Vagin <avagin@openvz.org>
Cc: Vasiliy Kulikov <segoon@openwall.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-01-12 20:13:13 -08:00
Pavel Emelyanov b8f566b04d sysctl: add the kernel.ns_last_pid control
The sysctl works on the current task's pid namespace, getting and setting
its last_pid field.

Writing is allowed for CAP_SYS_ADMIN-capable tasks thus making it possible
to create a task with desired pid value.  This ability is required badly
for the checkpoint/restore in userspace.

This approach suits all the parties for now.

Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
Acked-by: Tejun Heo <tj@kernel.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Cyrill Gorcunov <gorcunov@openvz.org>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Serge Hallyn <serue@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-01-12 20:13:11 -08:00
Ying Han 0527b6903b memcg: fix pgpgin/pgpgout documentation
The two memcg stats pgpgin/pgpgout have different meaning than the ones
in vmstat, which indicates that we picked a bad naming for them.

It might be late to change the stat name, but better documentation is
always helpful.

Signed-off-by: Ying Han <yinghan@google.com>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-01-12 20:13:06 -08:00
Zhu Yanhai d66c1ce7df Documentation/cgroups/memory.txt: fix typo
It should be memsw.max_usage_in_bytes. This typo has been there for
a really long time.

Signed-off-by: Zhu Yanhai <gaoyang.zyh@taobao.com>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-01-12 20:13:06 -08:00
Stanislaw Gruszka 888a214dc4 slub: document setting min order with debug_guardpage_minorder > 0
Acked-by: David Rientjes <rientjes@google.com>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-01-12 20:13:04 -08:00
Kay Sievers cca3e70730 modules: sysfs - export: taint, coresize, initsize
Recent tools do not want to use /proc to retrieve module information. A few
values are currently missing from sysfs to replace the information available
in /proc/modules.

This adds /sys/module/*/{coresize,initsize,taint} attributes.

TAINT_PROPRIETARY_MODULE (P) and TAINT_OOT_MODULE (O) flags are both always
shown now, and do no longer exclude each other, also in /proc/modules.

Replace the open-coded sysfs attribute initializers with the __ATTR() macro.

Add the new attributes to Documentation/ABI.

Cc: Lucas De Marchi <lucas.demarchi@profusion.mobi>
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2012-01-13 09:32:15 +10:30
Linus Torvalds bcf8a3dfcb Autogenerated GPG tag for Rusty D1ADB8F1: 15EE 8D6C AB0E 7F0C F999 BFCB D920 0E6C D1AD B8F1
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Merge tag 'to-linus' of git://github.com/rustyrussell/linux

* tag 'to-linus' of git://github.com/rustyrussell/linux: (24 commits)
  lguest: Make sure interrupt is allocated ok by lguest_setup_irq
  lguest: move the lguest tool to the tools directory
  lguest: switch segment-voodoo-numbers to readable symbols
  virtio: balloon: Add freeze, restore handlers to support S4
  virtio: balloon: Move vq initialization into separate function
  virtio: net: Add freeze, restore handlers to support S4
  virtio: net: Move vq and vq buf removal into separate function
  virtio: net: Move vq initialization into separate function
  virtio: blk: Add freeze, restore handlers to support S4
  virtio: blk: Move vq initialization to separate function
  virtio: console: Disable callbacks for virtqueues at start of S4 freeze
  virtio: console: Add freeze and restore handlers to support S4
  virtio: console: Move vq and vq buf removal into separate functions
  virtio: pci: add PM notification handlers for restore, freeze, thaw, poweroff
  virtio: pci: switch to new PM API
  virtio_blk: fix config handler race
  virtio: add debugging if driver doesn't kick.
  virtio: expose added descriptors immediately.
  virtio: avoid modulus operation.
  virtio: support unlocked queue kick
  ...
2012-01-12 12:37:27 -08:00
Sage Weil a40dc6cc2e ceph: enable/disable dentry complete flags via mount option
Enable/disable use of the dentry dir 'complete' flag via a mount option.
This lets the admin control whether ceph uses the dcache to satisfy
negative lookups or readdir when it has the entire directory contents in
its cache.

This is purely a performance optimization; correctness is guaranteed
whether it is enabled or not.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sage Weil <sage@newdream.net>
2012-01-12 11:00:40 -08:00
Linus Torvalds a429638cac Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (526 commits)
  ASoC: twl6040 - Add method to query optimum PDM_DL1 gain
  ALSA: hda - Fix the lost power-setup of seconary pins after PM resume
  ALSA: usb-audio: add Yamaha MOX6/MOX8 support
  ALSA: virtuoso: add S/PDIF input support for all Xonars
  ALSA: ice1724 - Support for ooAoo SQ210a
  ALSA: ice1724 - Allow card info based on model only
  ALSA: ice1724 - Create capture pcm only for ADC-enabled configurations
  ALSA: hdspm - Provide unique driver id based on card serial
  ASoC: Dynamically allocate the rtd device for a non-empty release()
  ASoC: Fix recursive dependency due to select ATMEL_SSC in SND_ATMEL_SOC_SSC
  ALSA: hda - Fix the detection of "Loopback Mixing" control for VIA codecs
  ALSA: hda - Return the error from get_wcaps_type() for invalid NIDs
  ALSA: hda - Use auto-parser for HP laptops with cx20459 codec
  ALSA: asihpi - Fix potential Oops in snd_asihpi_cmode_info()
  ALSA: hdsp - Fix potential Oops in snd_hdsp_info_pref_sync_ref()
  ALSA: hda/cirrus - support for iMac12,2 model
  ASoC: cx20442: add bias control over a platform provided regulator
  ALSA: usb-audio - Avoid flood of frame-active debug messages
  ALSA: snd-usb-us122l: Delete calls to preempt_disable
  mfd: Put WM8994 into cache only mode when suspending
  ...

Fix up trivial conflicts in:
 - arch/arm/mach-s3c64xx/mach-crag6410.c:
	renamed speyside_wm8962 to tobermory, added littlemill right
	next to it
 - drivers/base/regmap/{regcache.c,regmap.c}:
	duplicate diff that had already come in with other changes in
	the regmap tree
2012-01-12 08:00:30 -08:00
Takashi Iwai 9e4ce164ee Merge branch 'topic/hda' into for-linus 2012-01-12 09:59:18 +01:00
Takashi Iwai 627b79628f Merge branch 'topic/misc' into for-linus 2012-01-12 09:59:14 +01:00
Davidlohr Bueso 07fe9977b6 lguest: move the lguest tool to the tools directory
This is a better location instead of having it in Documentation.

Signed-off-by: Davidlohr Bueso <dave@gnu.org>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (fixed compile)
2012-01-12 15:44:47 +10:30
Stephen Boyd 4137e50494 mmc: core: Fixup delayed work clock gating patch
c31b50e (mmc: core: Use delayed work in clock gating framework,
2011-11-14) missed a few things during review:

 o A useless pr_info()

 o milliseconds was written as two words

 o The sysfs file had units in its output

Fix all three problems.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Cc: Sujit Reddy Thumma <sthumma@codeaurora.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
2012-01-11 23:58:43 -05:00
Johan Rudholm add710eaa8 mmc: boot partition ro lock support
Enable boot partitions to be read-only locked until next power on via
a sysfs entry. There will be one sysfs entry for each boot partition:

/sys/block/mmcblkXbootY/ro_lock_until_next_power_on

Each boot partition is locked by writing 1 to its file.

Signed-off-by: Johan Rudholm <johan.rudholm@stericsson.com>
Signed-off-by: John Beckett <john.beckett@stericsson.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
2012-01-11 23:58:43 -05:00
Sujit Reddy Thumma 597dd9d79c mmc: core: Use delayed work in clock gating framework
Current clock gating framework disables the MCI clock as soon as the
request is completed and enables it when a request arrives. This aggressive
clock gating framework, when enabled, cause following issues:

When there are back-to-back requests from the Queue layer, we unnecessarily
end up disabling and enabling the clocks between these requests since 8MCLK
clock cycles is a very short duration compared to the time delay between
back to back requests reaching the MMC layer. This overhead can effect the
overall performance depending on how long the clock enable and disable
calls take which is platform dependent. For example on some platforms we
can have clock control not on the local processor, but on a different
subsystem and the time taken to perform the clock enable/disable can add
significant overhead.

Also if the host controller driver decides to disable the host clock too
when mmc_set_ios function is called with ios.clock=0, it adds additional
delay and it is highly possible that the next request had already arrived
and unnecessarily blocked in enabling the clocks. This is seen frequently
when the processor is executing at high speeds and in multi-core platforms
thus reduces the overall throughput compared to if clock gating is
disabled.

Fix this by delaying turning off the clocks by posting request on
delayed workqueue. Also cancel the unscheduled pending work, if any,
when there is access to card.

sysfs entry is provided to tune the delay as needed, default
value set to 200ms.

Signed-off-by: Sujit Reddy Thumma <sthumma@codeaurora.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
2012-01-11 23:58:41 -05:00
Linus Torvalds 541048a1d3 Merge branch 'x86-debug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
* 'x86-debug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86, reboot: Fix typo in nmi reboot path
  x86, NMI: Add to_cpumask() to silence compile warning
  x86, NMI: NMI selftest depends on the local apic
  x86: Add stack top margin for stack overflow checking
  x86, NMI: NMI-selftest should handle the UP case properly
  x86: Fix the 32-bit stackoverflow-debug build
  x86, NMI: Add knob to disable using NMI IPIs to stop cpus
  x86, NMI: Add NMI IPI selftest
  x86, reboot: Use NMI instead of REBOOT_VECTOR to stop cpus
  x86: Clean up the range of stack overflow checking
  x86: Panic on detection of stack overflow
  x86: Check stack overflow in detail
2012-01-11 19:13:04 -08:00
Linus Torvalds b24ca57e76 Merge git://git.infradead.org/battery-2.6
* git://git.infradead.org/battery-2.6: (68 commits)
  power_supply: Mark da9052 driver as broken
  power_supply: Drop usage of nowarn variant of sysfs_create_link()
  s3c_adc_battery: Average over more than one adc sample
  power_supply: Add DA9052 battery driver
  isp1704_charger: Fix missing check
  jz4740-battery: Fix signedness bug
  power_supply: Assume mains power by default
  sbs-battery: Fix devicetree match table
  ARM: rx51: Add bq27200 i2c board info
  sbs-battery: Change power supply name
  devicetree-bindings: Propagate bq20z75->sbs rename to dt bindings
  devicetree-bindings: Add vendor entry for Smart Battery Systems
  sbs-battery: Rename internals to new name
  bq20z75: Rename to sbs-battery
  wm97xx_battery: Use DEFINE_MUTEX() for work_lock
  max8997_charger: Remove duplicate module.h
  lp8727_charger: Some minor fixes for the header
  lp8727_charger: Add header file
  power_supply: Convert drivers/power/* to use module_platform_driver()
  power_supply: Add "unknown" in power supply type
  ...
2012-01-11 18:53:05 -08:00
Linus Torvalds 6296e5d3c0 Merge branch 'slab/for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/linux
* 'slab/for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/linux:
  slub: disallow changing cpu_partial from userspace for debug caches
  slub: add missed accounting
  slub: Extract get_freelist from __slab_alloc
  slub: Switch per cpu partial page support off for debugging
  slub: fix a possible memleak in __slab_alloc()
  slub: fix slub_max_order Documentation
  slub: add missed accounting
  slab: add taint flag outputting to debug paths.
  slub: add taint flag outputting to debug paths
  slab: introduce slab_max_order kernel parameter
  slab: rename slab_break_gfp_order to slab_max_order
2012-01-11 18:52:23 -08:00
Linus Torvalds 7b67e75147 Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci
* 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci: (80 commits)
  x86/PCI: Expand the x86_msi_ops to have a restore MSIs.
  PCI: Increase resource array mask bit size in pcim_iomap_regions()
  PCI: DEVICE_COUNT_RESOURCE should be equal to PCI_NUM_RESOURCES
  PCI: pci_ids: add device ids for STA2X11 device (aka ConneXT)
  PNP: work around Dell 1536/1546 BIOS MMCONFIG bug that breaks USB
  x86/PCI: amd: factor out MMCONFIG discovery
  PCI: Enable ATS at the device state restore
  PCI: msi: fix imbalanced refcount of msi irq sysfs objects
  PCI: kconfig: English typo in pci/pcie/Kconfig
  PCI/PM/Runtime: make PCI traces quieter
  PCI: remove pci_create_bus()
  xtensa/PCI: convert to pci_scan_root_bus() for correct root bus resources
  x86/PCI: convert to pci_create_root_bus() and pci_scan_root_bus()
  x86/PCI: use pci_scan_bus() instead of pci_scan_bus_parented()
  x86/PCI: read Broadcom CNB20LE host bridge info before PCI scan
  sparc32, leon/PCI: convert to pci_scan_root_bus() for correct root bus resources
  sparc/PCI: convert to pci_create_root_bus()
  sh/PCI: convert to pci_scan_root_bus() for correct root bus resources
  powerpc/PCI: convert to pci_create_root_bus()
  powerpc/PCI: split PHB part out of pcibios_map_io_space()
  ...

Fix up conflicts in drivers/pci/msi.c and include/linux/pci_regs.h due
to the same patches being applied in other branches.
2012-01-11 18:50:26 -08:00
Pekka Enberg 5878cf431c Merge branch 'slab/urgent' into slab/for-linus 2012-01-11 21:11:29 +02:00
Linus Torvalds e7691a1ce3 Merge branch 'for-linus' of git://selinuxproject.org/~jmorris/linux-security
* 'for-linus' of git://selinuxproject.org/~jmorris/linux-security: (32 commits)
  ima: fix invalid memory reference
  ima: free duplicate measurement memory
  security: update security_file_mmap() docs
  selinux: Casting (void *) value returned by kmalloc is useless
  apparmor: fix module parameter handling
  Security: tomoyo: add .gitignore file
  tomoyo: add missing rcu_dereference()
  apparmor: add missing rcu_dereference()
  evm: prevent racing during tfm allocation
  evm: key must be set once during initialization
  mpi/mpi-mpow: NULL dereference on allocation failure
  digsig: build dependency fix
  KEYS: Give key types their own lockdep class for key->sem
  TPM: fix transmit_cmd error logic
  TPM: NSC and TIS drivers X86 dependency fix
  TPM: Export wait_for_stat for other vendor specific drivers
  TPM: Use vendor specific function for status probe
  tpm_tis: add delay after aborting command
  tpm_tis: Check return code from getting timeouts/durations
  tpm: Introduce function to poll for result of self test
  ...

Fix up trivial conflict in lib/Makefile due to addition of CONFIG_MPI
and SIGSIG next to CONFIG_DQL addition.
2012-01-10 21:51:23 -08:00
Linus Torvalds 06792c4dde The following changes since commit 3ee72ca992
are available in the git repository:
 
     git://linux-c6x.org/git/projects/linux-c6x-upstreaming.git for-linux-next
 
  Documentation/devicetree/bindings/c6x/clocks.txt   |   40 +
  Documentation/devicetree/bindings/c6x/dscr.txt     |  127 +++
  Documentation/devicetree/bindings/c6x/emifa.txt    |   62 ++
  .../devicetree/bindings/c6x/interrupt.txt          |  104 +++
  Documentation/devicetree/bindings/c6x/soc.txt      |   28 +
  Documentation/devicetree/bindings/c6x/timer64.txt  |   26 +
  MAINTAINERS                                        |    8 +
  arch/c6x/Kconfig                                   |  174 +++++
  arch/c6x/Makefile                                  |   60 ++
  arch/c6x/boot/Makefile                             |   30 +
  arch/c6x/boot/dts/dsk6455.dts                      |   62 ++
  arch/c6x/boot/dts/evmc6457.dts                     |   48 ++
  arch/c6x/boot/dts/evmc6472.dts                     |   73 ++
  arch/c6x/boot/dts/evmc6474.dts                     |   58 ++
  arch/c6x/boot/dts/tms320c6455.dtsi                 |   96 +++
  arch/c6x/boot/dts/tms320c6457.dtsi                 |   68 ++
  arch/c6x/boot/dts/tms320c6472.dtsi                 |  134 ++++
  arch/c6x/boot/dts/tms320c6474.dtsi                 |   89 +++
  arch/c6x/boot/linked_dtb.S                         |    2 +
  arch/c6x/configs/dsk6455_defconfig                 |   44 ++
  arch/c6x/configs/evmc6457_defconfig                |   41 +
  arch/c6x/configs/evmc6472_defconfig                |   42 +
  arch/c6x/configs/evmc6474_defconfig                |   42 +
  arch/c6x/include/asm/Kbuild                        |   54 ++
  arch/c6x/include/asm/asm-offsets.h                 |    1 +
  arch/c6x/include/asm/bitops.h                      |  105 +++
  arch/c6x/include/asm/byteorder.h                   |   12 +
  arch/c6x/include/asm/cache.h                       |   90 +++
  arch/c6x/include/asm/cacheflush.h                  |   65 ++
  arch/c6x/include/asm/checksum.h                    |   34 +
  arch/c6x/include/asm/clkdev.h                      |   22 +
  arch/c6x/include/asm/clock.h                       |  148 ++++
  arch/c6x/include/asm/delay.h                       |   67 ++
  arch/c6x/include/asm/dma-mapping.h                 |   91 +++
  arch/c6x/include/asm/dscr.h                        |   34 +
  arch/c6x/include/asm/elf.h                         |  113 +++
  arch/c6x/include/asm/ftrace.h                      |    6 +
  arch/c6x/include/asm/hardirq.h                     |   20 +
  arch/c6x/include/asm/irq.h                         |  302 ++++++++
  arch/c6x/include/asm/irqflags.h                    |   72 ++
  arch/c6x/include/asm/linkage.h                     |   30 +
  arch/c6x/include/asm/megamod-pic.h                 |    9 +
  arch/c6x/include/asm/mmu.h                         |   18 +
  arch/c6x/include/asm/module.h                      |   33 +
  arch/c6x/include/asm/mutex.h                       |    6 +
  arch/c6x/include/asm/page.h                        |   11 +
  arch/c6x/include/asm/pgtable.h                     |   81 ++
  arch/c6x/include/asm/processor.h                   |  132 ++++
  arch/c6x/include/asm/procinfo.h                    |   28 +
  arch/c6x/include/asm/prom.h                        |    1 +
  arch/c6x/include/asm/ptrace.h                      |  174 +++++
  arch/c6x/include/asm/sections.h                    |   12 +
  arch/c6x/include/asm/setup.h                       |   32 +
  arch/c6x/include/asm/sigcontext.h                  |   80 ++
  arch/c6x/include/asm/signal.h                      |   17 +
  arch/c6x/include/asm/soc.h                         |   35 +
  arch/c6x/include/asm/string.h                      |   21 +
  arch/c6x/include/asm/swab.h                        |   54 ++
  arch/c6x/include/asm/syscall.h                     |  123 +++
  arch/c6x/include/asm/syscalls.h                    |   55 ++
  arch/c6x/include/asm/system.h                      |  168 ++++
  arch/c6x/include/asm/thread_info.h                 |  121 +++
  arch/c6x/include/asm/timer64.h                     |    6 +
  arch/c6x/include/asm/timex.h                       |   33 +
  arch/c6x/include/asm/tlb.h                         |    8 +
  arch/c6x/include/asm/traps.h                       |   36 +
  arch/c6x/include/asm/uaccess.h                     |  107 +++
  arch/c6x/include/asm/unaligned.h                   |  170 +++++
  arch/c6x/include/asm/unistd.h                      |   26 +
  arch/c6x/kernel/Makefile                           |   12 +
  arch/c6x/kernel/asm-offsets.c                      |  123 +++
  arch/c6x/kernel/c6x_ksyms.c                        |   66 ++
  arch/c6x/kernel/devicetree.c                       |   53 ++
  arch/c6x/kernel/dma.c                              |  153 ++++
  arch/c6x/kernel/entry.S                            |  803 ++++++++++++++++++++
  arch/c6x/kernel/head.S                             |   84 ++
  arch/c6x/kernel/irq.c                              |  728 ++++++++++++++++++
  arch/c6x/kernel/module.c                           |  123 +++
  arch/c6x/kernel/process.c                          |  265 +++++++
  arch/c6x/kernel/ptrace.c                           |  187 +++++
  arch/c6x/kernel/setup.c                            |  510 +++++++++++++
  arch/c6x/kernel/signal.c                           |  377 +++++++++
  arch/c6x/kernel/soc.c                              |   91 +++
  arch/c6x/kernel/switch_to.S                        |   74 ++
  arch/c6x/kernel/sys_c6x.c                          |   74 ++
  arch/c6x/kernel/time.c                             |   65 ++
  arch/c6x/kernel/traps.c                            |  423 ++++++++++
  arch/c6x/kernel/vectors.S                          |   81 ++
  arch/c6x/kernel/vmlinux.lds.S                      |  162 ++++
  arch/c6x/lib/Makefile                              |    7 +
  arch/c6x/lib/checksum.c                            |   36 +
  arch/c6x/lib/csum_64plus.S                         |  419 ++++++++++
  arch/c6x/lib/divi.S                                |   53 ++
  arch/c6x/lib/divremi.S                             |   46 ++
  arch/c6x/lib/divremu.S                             |   87 +++
  arch/c6x/lib/divu.S                                |   98 +++
  arch/c6x/lib/llshl.S                               |   37 +
  arch/c6x/lib/llshr.S                               |   38 +
  arch/c6x/lib/llshru.S                              |   38 +
  arch/c6x/lib/memcpy_64plus.S                       |   46 ++
  arch/c6x/lib/mpyll.S                               |   49 ++
  arch/c6x/lib/negll.S                               |   31 +
  arch/c6x/lib/pop_rts.S                             |   32 +
  arch/c6x/lib/push_rts.S                            |   31 +
  arch/c6x/lib/remi.S                                |   64 ++
  arch/c6x/lib/remu.S                                |   82 ++
  arch/c6x/lib/strasgi.S                             |   89 +++
  arch/c6x/lib/strasgi_64plus.S                      |   39 +
  arch/c6x/mm/Makefile                               |    5 +
  arch/c6x/mm/dma-coherent.c                         |  143 ++++
  arch/c6x/mm/init.c                                 |  113 +++
  arch/c6x/platforms/Kconfig                         |   16 +
  arch/c6x/platforms/Makefile                        |   12 +
  arch/c6x/platforms/cache.c                         |  445 +++++++++++
  arch/c6x/platforms/dscr.c                          |  598 +++++++++++++++
  arch/c6x/platforms/emif.c                          |   87 +++
  arch/c6x/platforms/megamod-pic.c                   |  349 +++++++++
  arch/c6x/platforms/platform.c                      |   17 +
  arch/c6x/platforms/pll.c                           |  444 +++++++++++
  arch/c6x/platforms/plldata.c                       |  404 ++++++++++
  arch/c6x/platforms/timer64.c                       |  244 ++++++
  include/asm-generic/io.h                           |    2 +-
  include/asm-generic/page.h                         |   10 +-
  include/asm-generic/uaccess.h                      |    7 +-
  include/linux/elf-em.h                             |    1 +
  125 files changed, 12989 insertions(+), 5 deletions(-)
  create mode 100644 Documentation/devicetree/bindings/c6x/clocks.txt
  create mode 100644 Documentation/devicetree/bindings/c6x/dscr.txt
  create mode 100644 Documentation/devicetree/bindings/c6x/emifa.txt
  create mode 100644 Documentation/devicetree/bindings/c6x/interrupt.txt
  create mode 100644 Documentation/devicetree/bindings/c6x/soc.txt
  create mode 100644 Documentation/devicetree/bindings/c6x/timer64.txt
  create mode 100644 arch/c6x/Kconfig
  create mode 100644 arch/c6x/Makefile
  create mode 100644 arch/c6x/boot/Makefile
  create mode 100644 arch/c6x/boot/dts/dsk6455.dts
  create mode 100644 arch/c6x/boot/dts/evmc6457.dts
  create mode 100644 arch/c6x/boot/dts/evmc6472.dts
  create mode 100644 arch/c6x/boot/dts/evmc6474.dts
  create mode 100644 arch/c6x/boot/dts/tms320c6455.dtsi
  create mode 100644 arch/c6x/boot/dts/tms320c6457.dtsi
  create mode 100644 arch/c6x/boot/dts/tms320c6472.dtsi
  create mode 100644 arch/c6x/boot/dts/tms320c6474.dtsi
  create mode 100644 arch/c6x/boot/linked_dtb.S
  create mode 100644 arch/c6x/configs/dsk6455_defconfig
  create mode 100644 arch/c6x/configs/evmc6457_defconfig
  create mode 100644 arch/c6x/configs/evmc6472_defconfig
  create mode 100644 arch/c6x/configs/evmc6474_defconfig
  create mode 100644 arch/c6x/include/asm/Kbuild
  create mode 100644 arch/c6x/include/asm/asm-offsets.h
  create mode 100644 arch/c6x/include/asm/bitops.h
  create mode 100644 arch/c6x/include/asm/byteorder.h
  create mode 100644 arch/c6x/include/asm/cache.h
  create mode 100644 arch/c6x/include/asm/cacheflush.h
  create mode 100644 arch/c6x/include/asm/checksum.h
  create mode 100644 arch/c6x/include/asm/clkdev.h
  create mode 100644 arch/c6x/include/asm/clock.h
  create mode 100644 arch/c6x/include/asm/delay.h
  create mode 100644 arch/c6x/include/asm/dma-mapping.h
  create mode 100644 arch/c6x/include/asm/dscr.h
  create mode 100644 arch/c6x/include/asm/elf.h
  create mode 100644 arch/c6x/include/asm/ftrace.h
  create mode 100644 arch/c6x/include/asm/hardirq.h
  create mode 100644 arch/c6x/include/asm/irq.h
  create mode 100644 arch/c6x/include/asm/irqflags.h
  create mode 100644 arch/c6x/include/asm/linkage.h
  create mode 100644 arch/c6x/include/asm/megamod-pic.h
  create mode 100644 arch/c6x/include/asm/mmu.h
  create mode 100644 arch/c6x/include/asm/module.h
  create mode 100644 arch/c6x/include/asm/mutex.h
  create mode 100644 arch/c6x/include/asm/page.h
  create mode 100644 arch/c6x/include/asm/pgtable.h
  create mode 100644 arch/c6x/include/asm/processor.h
  create mode 100644 arch/c6x/include/asm/procinfo.h
  create mode 100644 arch/c6x/include/asm/prom.h
  create mode 100644 arch/c6x/include/asm/ptrace.h
  create mode 100644 arch/c6x/include/asm/sections.h
  create mode 100644 arch/c6x/include/asm/setup.h
  create mode 100644 arch/c6x/include/asm/sigcontext.h
  create mode 100644 arch/c6x/include/asm/signal.h
  create mode 100644 arch/c6x/include/asm/soc.h
  create mode 100644 arch/c6x/include/asm/string.h
  create mode 100644 arch/c6x/include/asm/swab.h
  create mode 100644 arch/c6x/include/asm/syscall.h
  create mode 100644 arch/c6x/include/asm/syscalls.h
  create mode 100644 arch/c6x/include/asm/system.h
  create mode 100644 arch/c6x/include/asm/thread_info.h
  create mode 100644 arch/c6x/include/asm/timer64.h
  create mode 100644 arch/c6x/include/asm/timex.h
  create mode 100644 arch/c6x/include/asm/tlb.h
  create mode 100644 arch/c6x/include/asm/traps.h
  create mode 100644 arch/c6x/include/asm/uaccess.h
  create mode 100644 arch/c6x/include/asm/unaligned.h
  create mode 100644 arch/c6x/include/asm/unistd.h
  create mode 100644 arch/c6x/kernel/Makefile
  create mode 100644 arch/c6x/kernel/asm-offsets.c
  create mode 100644 arch/c6x/kernel/c6x_ksyms.c
  create mode 100644 arch/c6x/kernel/devicetree.c
  create mode 100644 arch/c6x/kernel/dma.c
  create mode 100644 arch/c6x/kernel/entry.S
  create mode 100644 arch/c6x/kernel/head.S
  create mode 100644 arch/c6x/kernel/irq.c
  create mode 100644 arch/c6x/kernel/module.c
  create mode 100644 arch/c6x/kernel/process.c
  create mode 100644 arch/c6x/kernel/ptrace.c
  create mode 100644 arch/c6x/kernel/setup.c
  create mode 100644 arch/c6x/kernel/signal.c
  create mode 100644 arch/c6x/kernel/soc.c
  create mode 100644 arch/c6x/kernel/switch_to.S
  create mode 100644 arch/c6x/kernel/sys_c6x.c
  create mode 100644 arch/c6x/kernel/time.c
  create mode 100644 arch/c6x/kernel/traps.c
  create mode 100644 arch/c6x/kernel/vectors.S
  create mode 100644 arch/c6x/kernel/vmlinux.lds.S
  create mode 100644 arch/c6x/lib/Makefile
  create mode 100644 arch/c6x/lib/checksum.c
  create mode 100644 arch/c6x/lib/csum_64plus.S
  create mode 100644 arch/c6x/lib/divi.S
  create mode 100644 arch/c6x/lib/divremi.S
  create mode 100644 arch/c6x/lib/divremu.S
  create mode 100644 arch/c6x/lib/divu.S
  create mode 100644 arch/c6x/lib/llshl.S
  create mode 100644 arch/c6x/lib/llshr.S
  create mode 100644 arch/c6x/lib/llshru.S
  create mode 100644 arch/c6x/lib/memcpy_64plus.S
  create mode 100644 arch/c6x/lib/mpyll.S
  create mode 100644 arch/c6x/lib/negll.S
  create mode 100644 arch/c6x/lib/pop_rts.S
  create mode 100644 arch/c6x/lib/push_rts.S
  create mode 100644 arch/c6x/lib/remi.S
  create mode 100644 arch/c6x/lib/remu.S
  create mode 100644 arch/c6x/lib/strasgi.S
  create mode 100644 arch/c6x/lib/strasgi_64plus.S
  create mode 100644 arch/c6x/mm/Makefile
  create mode 100644 arch/c6x/mm/dma-coherent.c
  create mode 100644 arch/c6x/mm/init.c
  create mode 100644 arch/c6x/platforms/Kconfig
  create mode 100644 arch/c6x/platforms/Makefile
  create mode 100644 arch/c6x/platforms/cache.c
  create mode 100644 arch/c6x/platforms/dscr.c
  create mode 100644 arch/c6x/platforms/emif.c
  create mode 100644 arch/c6x/platforms/megamod-pic.c
  create mode 100644 arch/c6x/platforms/platform.c
  create mode 100644 arch/c6x/platforms/pll.c
  create mode 100644 arch/c6x/platforms/plldata.c
  create mode 100644 arch/c6x/platforms/timer64.c
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Merge tag 'for-linux-3.3-merge-window' of git://linux-c6x.org/git/projects/linux-c6x-upstreaming

* tag 'for-linux-3.3-merge-window' of git://linux-c6x.org/git/projects/linux-c6x-upstreaming: (29 commits)
  C6X: replace tick_nohz_stop/restart_sched_tick calls
  C6X: add register_cpu call
  C6X: deal with memblock API changes
  C6X: fix timer64 initialization
  C6X: fix layout of EMIFA registers
  C6X: MAINTAINERS
  C6X: DSCR - Device State Configuration Registers
  C6X: EMIF - External Memory Interface
  C6X: general SoC support
  C6X: library code
  C6X: headers
  C6X: ptrace support
  C6X: loadable module support
  C6X: cache control
  C6X: clocks
  C6X: build infrastructure
  C6X: syscalls
  C6X: interrupt handling
  C6X: time management
  C6X: signal management
  ...
2012-01-10 17:39:40 -08:00
Tomasz Stanislawski aa73ab96be [media] doc: v4l: selection: choose pixels as units for selection rectangles
Pixels were preferred units for selection rectangles over driver-dependent
units for almost all use cases. Therefore the units were fixed to pixels.

Signed-off-by: Tomasz Stanislawski <t.stanislaws@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-10 23:19:57 -02:00
Tomasz Stanislawski 8af4922fe5 [media] doc: v4l: add documentation for selection API
This patch adds a documentation for VIDIOC_{G/S}_SELECTION ioctl. Moreover, the
patch adds the description of modeling of composing, cropping and scaling
features in V4L2. Finally, some examples are presented.

Signed-off-by: Tomasz Stanislawski <t.stanislaws@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-10 23:18:23 -02:00
Tomasz Stanislawski 15e9ff3fcd [media] doc: v4l: add binary images for selection API
This patch adds images in binary format for the V4L2 selection API.

Signed-off-by: Tomasz Stanislawski <t.stanislaws@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-10 23:17:55 -02:00
Linus Torvalds 40ba587923 Merge branch 'akpm' (aka "Andrew's patch-bomb")
Andrew elucidates:
 - First installmeant of MM.  We have a HUGE number of MM patches this
   time.  It's crazy.
 - MAINTAINERS updates
 - backlight updates
 - leds
 - checkpatch updates
 - misc ELF stuff
 - rtc updates
 - reiserfs
 - procfs
 - some misc other bits

* akpm: (124 commits)
  user namespace: make signal.c respect user namespaces
  workqueue: make alloc_workqueue() take printf fmt and args for name
  procfs: add hidepid= and gid= mount options
  procfs: parse mount options
  procfs: introduce the /proc/<pid>/map_files/ directory
  procfs: make proc_get_link to use dentry instead of inode
  signal: add block_sigmask() for adding sigmask to current->blocked
  sparc: make SA_NOMASK a synonym of SA_NODEFER
  reiserfs: don't lock root inode searching
  reiserfs: don't lock journal_init()
  reiserfs: delay reiserfs lock until journal initialization
  reiserfs: delete comments referring to the BKL
  drivers/rtc/interface.c: fix alarm rollover when day or month is out-of-range
  drivers/rtc/rtc-twl.c: add DT support for RTC inside twl4030/twl6030
  drivers/rtc/: remove redundant spi driver bus initialization
  drivers/rtc/rtc-jz4740.c: make jz4740_rtc_driver static
  drivers/rtc/rtc-mc13xxx.c: make mc13xxx_rtc_idtable static
  rtc: convert drivers/rtc/* to use module_platform_driver()
  drivers/rtc/rtc-wm831x.c: convert to devm_kzalloc()
  drivers/rtc/rtc-wm831x.c: remove unused period IRQ handler
  ...
2012-01-10 16:42:48 -08:00
Vasiliy Kulikov 0499680a42 procfs: add hidepid= and gid= mount options
Add support for mount options to restrict access to /proc/PID/
directories.  The default backward-compatible "relaxed" behaviour is left
untouched.

The first mount option is called "hidepid" and its value defines how much
info about processes we want to be available for non-owners:

hidepid=0 (default) means the old behavior - anybody may read all
world-readable /proc/PID/* files.

hidepid=1 means users may not access any /proc/<pid>/ directories, but
their own.  Sensitive files like cmdline, sched*, status are now protected
against other users.  As permission checking done in proc_pid_permission()
and files' permissions are left untouched, programs expecting specific
files' modes are not confused.

hidepid=2 means hidepid=1 plus all /proc/PID/ will be invisible to other
users.  It doesn't mean that it hides whether a process exists (it can be
learned by other means, e.g.  by kill -0 $PID), but it hides process' euid
and egid.  It compicates intruder's task of gathering info about running
processes, whether some daemon runs with elevated privileges, whether
another user runs some sensitive program, whether other users run any
program at all, etc.

gid=XXX defines a group that will be able to gather all processes' info
(as in hidepid=0 mode).  This group should be used instead of putting
nonroot user in sudoers file or something.  However, untrusted users (like
daemons, etc.) which are not supposed to monitor the tasks in the whole
system should not be added to the group.

hidepid=1 or higher is designed to restrict access to procfs files, which
might reveal some sensitive private information like precise keystrokes
timings:

http://www.openwall.com/lists/oss-security/2011/11/05/3

hidepid=1/2 doesn't break monitoring userspace tools.  ps, top, pgrep, and
conky gracefully handle EPERM/ENOENT and behave as if the current user is
the only user running processes.  pstree shows the process subtree which
contains "pstree" process.

Note: the patch doesn't deal with setuid/setgid issues of keeping
preopened descriptors of procfs files (like
https://lkml.org/lkml/2011/2/7/368).  We rely on that the leaked
information like the scheduling counters of setuid apps doesn't threaten
anybody's privacy - only the user started the setuid program may read the
counters.

Signed-off-by: Vasiliy Kulikov <segoon@openwall.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Randy Dunlap <rdunlap@xenotime.net>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Greg KH <greg@kroah.com>
Cc: Theodore Tso <tytso@MIT.EDU>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: James Morris <jmorris@namei.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-01-10 16:30:54 -08:00
Benoit Cousson 948170f894 drivers/rtc/rtc-twl.c: add DT support for RTC inside twl4030/twl6030
Add the DT support for the TI rtc-twl present in the twl4030 and twl6030
devices.

Signed-off-by: Benoit Cousson <b-cousson@ti.com>
Acked-by: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-01-10 16:30:53 -08:00
Mark Godfrey dda367ac06 rtc/ab8500: add calibration attribute to AB8500 RTC
The rtc_calibration attribute allows user-space to get and set the
AB8500's RtcCalibration register.  The AB8500 will then use the value in
this register to compensate for RTC drift every 60 seconds.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Mark Godfrey <mark.godfrey@stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-01-10 16:30:52 -08:00
Stanislaw Gruszka c0a32fc5a2 mm: more intensive memory corruption debugging
With CONFIG_DEBUG_PAGEALLOC configured, the CPU will generate an exception
on access (read,write) to an unallocated page, which permits us to catch
code which corrupts memory.  However the kernel is trying to maximise
memory usage, hence there are usually few free pages in the system and
buggy code usually corrupts some crucial data.

This patch changes the buddy allocator to keep more free/protected pages
and to interlace free/protected and allocated pages to increase the
probability of catching corruption.

When the kernel is compiled with CONFIG_DEBUG_PAGEALLOC,
debug_guardpage_minorder defines the minimum order used by the page
allocator to grant a request.  The requested size will be returned with
the remaining pages used as guard pages.

The default value of debug_guardpage_minorder is zero: no change from
current behaviour.

[akpm@linux-foundation.org: tweak documentation, s/flg/flag/]
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Christoph Lameter <cl@linux-foundation.org>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-01-10 16:30:42 -08:00
Konstantin Khlebnikov 90a5d5af74 mm-tracepoint: fix documentation and examples
We renamed the page-free mm tracepoints.

Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Reviewed-by: Minchan Kim <minchan.kim@gmail.com>
Cc: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-01-10 16:30:41 -08:00