ARM: OMAP: Fix PRCM base register usage for 243x

The PRCM base register is different on 242x and 243x.  Use
the #ifdef'd #define from omap24xx.h instead of the locally
defined one.

Signed-off-by: Kevin Hilman <khilman@mvista.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

ARM: OMAP: Device init for OMAP24xx Enhanced Audio Controller

Device init for OMAP24xx Enhanced Audio Controller

Signed-off-by: Jarkko Nikula <jarkko.nikula@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

ARM: OMAP: 243x: Add mappings for SDRC and SMS

Add mappings for SDRC ans SMS so that omap2_memory_init() works on the
2430.  This also allows the mpurate= command-line option to work.

Signed-off-by: Kevin Hilman <khilman@mvista.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

ARM: OMAP: Merge PM code from N800 tree

This patch merges omap2 PM code from N800 tree.

Patch adds support for sleep while idle for omap2
and handy serial console debbugging code. It also
moves code from pm-domain.c to pm.c.

This code can be used as a base for developing
power management for all omap24xx boards.

Signed-off-by: Kai Svahn <kai.svahn@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

ARM: OMAP: Merge driver headers from N800 tree

This patch merges omap specific driver headers from
N800 tree.

Signed-off-by: Kai Svahn <kai.svahn@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

ARM: OMAP: Merge gpmc changes from N800 tree

This patch merges gpmc changes from N800 tree
and adds gpmc_get_fclk_period() to gpmc.h.

Signed-off-by: Kai Svahn <kai.svahn@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

ARM: OMAP: TUSB EVM init

Add init support for the TUSB6010 EVM board, as connected to H4.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>

ARM: OMAP: Tabify mux.c

Tabify mux.c, no functional changes.

Signed-off-by: Tony Lindgren <tony@atomide.com>

ARM: OMAP: Add minimal OMAP2430 support

This patch adds minimal OMAP2430 support to get the kernel booting on 2430SDP.

Signed-off-by: Syed Mohammed Khasim <x0khasim@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

ARM: OMAP: abstract debug card setup (smc, leds)

Additional cleanup for debug boards on H2/P2/H3/H4:  move the init
code that's not board-specific into a new file where it can be easily
shared between all the different boards (avoiding code duplication,
and making it easier to support more devices).  Make H4 use that.

This should be easy to drop in to the OMAP1 boards using these debug
cards; the only difference seems to be that the p2 does an extra reset
of the smc using the fpga (probably all boards could do that, if it's
necessary) and doesn't use the gpio mux or request APIs.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>

ARM: OMAP: omap2/gpmc updates

GPMC updates:
 - bugfixes: wrong/missing flags, omitted write, wrong test
 - don't map memory segments starting at zero
 - improve debug messaging
 - export gpmc_get_fclk_perio]d() since it's needed to calc timings
 - expect gpmc_cs_set_timings() caller to have initialized sync vs async

Note that this API is glitchy; likely the best fix would be to add
a member to "struct gpmc_timings" to hold GPMC_CONFIG1, since that
holds one key aspect of the GPMC timings (the gpmc_fclk divisor,
and sync vs. async == whether that divisor matters).

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>

ARM: OMAP: omap2/memory.c compile fixes

Remove some conflicting declarations in omap2/memory.c so that the
file builds again.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>

ARM: OMAP: Board Apollon update, fix boot

Update Apollon board init to initialize NAND, USB,
and LEDs. Also configure GPMC memory for smc91x Ethernet.

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

ARM: OMAP: Optimize INTC register accesses and enable autoidling

Use virtual addresses directly instead of physical addresses to
avoid having to recalculate the virtual address with every
register access.

Signed-off-by: Juha Yrjola <juha.yrjola@solidboot.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

ARM: OMAP2: Place SMS and SDRC into smart idle mode

Place SMS and SDRC into smart idle mode

Signed-off-by: Juha Yrjola <juha.yrjola@solidboot.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

ARM: OMAP: H2 lcd updates for SPI framework

This is an updated patch to fix lcd for H2 board. It uses platform_data
field to pass spi_device to lcd driver.

Signed-off-by: Eduardo Valentin <eduardo.valentin@indt.org.br>
Signed-off-by: Tony Lindgren <tony@atomide.com>

ARM: OMAP: TSC2101: add platform init / registration to board files

H2 / H3 boards use this chip, update their board files.

Signed-off-by: Imre Deak <imre.deak@solidboot.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

ARM: OMAP: N770: add missing LCD, LCD controller, touchscreen device registration

These were left out from the board file when merging these drivers,
add them here.

Call GPIO init from the board file as well, since the platform device init
code uses the GPIO API.

Signed-off-by: Imre Deak <imre.deak@solidboot.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

ARM: OMAP: osk+mistral backlight, power, board specific

Mistral-specific:

  - Add PWL-driven LCD backlight device

  - Apply power to the board even when the LCD isn't configured; things
    like EEPROM, temperature sensor, and wakeup switch depend on it.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>

ARM: OMAP: Add omap osk defconfig

Add omap osk defconfig

Signed-off-by: Tony Lindgren <tony@atomide.com>

ARM: OMAP: Update omap h2 defconfig

Update omap h2 defconfig

Signed-off-by: Tony Lindgren <tony@atomide.com>

ARM: OMAP: Sync board specific files with linux-omap

This patch syncs omap board specific files with linux-omap tree.

Patch consists mostly of driver updates done in linux-omap
tree for drivers not yet in mainline kernel.

Signed-off-by: Tony Lindgren <tony@atomide.com>

ARM: OMAP: Basic support for siemens sx1

This adds basic support for Siemens SX1. More patches are available,
with video driver, mixer, and serial ports working. That is enough to
do gsm calls with right userland.

Signed-off-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Tony Lindgren <tony@atomide.com>

ARM: OMAP: Palm Tungsten|T support

This patch adds board file and necessary includes for Palm Tungsten|T.

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

ARM: OMAP: Register tsc2102 on Palm Tungsten E

Add palmte board config bits for TSC2102 controlled devices. This will
enable touchscreen, audio and APM code to report battery level.

If there are other boards at some point that use a TSC2102, similar
code can be used.

Signed-off-by: Andrzej Zaborowski <balrog@zabor.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>

ARM: OMAP: PalmZ71 support

Palmz71 specific things - board file.

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

ARM: OMAP: Add support for Amstrad Delta keypad

This adds support for the keypad on the top of the Amstrad Delta. It's
just a standard omap-keypad so all we need to do is add the keypad
layout and platform data to the board definition file.

Signed-off-by: Jonathan McDowell <noodles@earth.li>
Signed-off-by: Tony Lindgren <tony@atomide.com>

ARM: OMAP: Palm Tungsten E board update

General update of the board file for Palm Tungsten E. Registers the
platform devices contained in the PDA (ROM chip, keypad, infra-red)
and updates the configuration for USB and MMC, whose config values
were previously guessed in most cases due to lack of documentation
(and now are confirmed by a number of users). Macros for GPIO pins are
moved to a file in include/asm-arm/arch-omap.

Signed-off-by: Andrzej Zaborowski <balrog@zabor.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>

ARM: OMAP: add SoSSI clock (remove manual checking of SoSSI state from idle)

The SoSSI driver should already take care of this by enabling / disabling
its clock when necessary, so this legacy callout from the PM idle code
is not needed any more.

Signed-off-by: Imre Deak <imre.deak@solidboot.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

ARM: OMAP: add SoSSI clock

This is needed, so that disabling the SoSSI clock during idle can
be prevented.

Signed-off-by: Imre Deak <imre.deak@solidboot.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

ARM: OMAP: omap camera builds again; Mistral init and mux

Support the camera connector on the OSK Mistral add-on board:

  - define muxing for both camera controllers
  - mux both of them for Mistral
  - teach ov9640 glue about mistral powerup/powerdown

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>

ARM: OMAP: Enable DSP clocks for McBSP on omap310

This patch enables some clock on omap310.

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

ARM: OMAP: Enable serial idling and wakeup features

Enable serial idling and wakeup features

Signed-off-by: Juha Yrjola <juha.yrjola@solidboot.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

ARM: OMAP2: Force APLLs always active

The APLLs are most efficiently idled by hardware.

Signed-off-by: Juha Yrjola <juha.yrjola@solidboot.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

ARM: OMAP: H3 workqueue fixes

Signed-off-by: Dirk Behme <dirk.behme@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

ARM: OMAP: OSK led fixes

Bugfixes for the OSK led support:

 - Fix Kconfig merge glitches:  Mistral handles idle and timer leds just fine
 - Fix pm_suspend() runtime botch:  can't sleep, so can't touch tps65010 leds

Improvements:
 - Switch sense of Mistral idle led, so idle == off

Probably the TPS65010 leds should be handled only by the "new led" API.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>

ARM: OMAP: fix OMAP1 dmtimer build warning

Remove the OMAP1 version of omap_dm_timer_get_fclk(), and its associated
compile-time warning.  It would only BUG() if called, while it's only
called on OMAP2.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>

ARM: OMAP: Fix 32k timer unsupported one-shot mode

Fix unsupported one-shot mode in set_mode hook.

Signed-off-by: Kevin Hilman <khilman@mvista.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

Merge branch 'fixes' of git://git.linux-nfs.org/pub/linux/nfs-2.6

* 'fixes' of git://git.linux-nfs.org/pub/linux/nfs-2.6:
  NFS: Fix nfs_direct_dirty_pages()
  NFS: Fix handful of compiler warnings in direct.c
  NFS: Avoid a deadlock situation on write

Revert "HOWTO: bug report addition" (or "HOWTO: mention bughunting")

This reverts commit 722385f75efd82d9f480f0765a1e97a4d83cac0d (or commit
3f27100872b21e4cc70d07b96eeb3611b30bce63, it's your choice ;), since the
same patch to Documentation/HOWTO got added twice because it just kept
applying cleanly.

Noted by Qi Yong.

Cc: Qi Yong <qiyong@fc-cn.com>
Acked-by: Diego Calleja <diegocg@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Merge git://git./linux/kernel/git/herbert/crypto-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  [CRYPTO] geode: Fix in-place operations and set key

Merge branch 'for-linus' of git://git./linux/kernel/git/drzeus/mmc

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc:
  mmc: add maintainer for ARM Primecell controller
  mmc: add maintainer for iMX MMC interface
  mmc: Add maintainers for TI OMAP MMC interface
  mmc: mark unmaintained drivers
  mmc: clean up unused parts of block driver

Fix crash with irqpoll due to the IRQF_IRQPOLL flag testing

With irqpoll enabled, trying to test the IRQF_IRQPOLL flag in the
actions would cause a NULL pointer dereference if no action was
installed (for example, the driver might have been unloaded with
interrupts still pending).

So be a bit more careful about testing the flag by making sure to test
for that case.

(The actual _change_ is trivial, the patch is more than a one-liner
because I rewrote the testing to also be much more readable.

Original (discarded) bugfix by Bernhard Walle.

Cc: Bernhard Walle <bwalle@suse.de>
Tested-by: Vivek Goyal <vgoyal@in.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

NFS: Fix nfs_direct_dirty_pages()

We only need to dirty the pages that were actually read in.

Also convert nfs_direct_dirty_pages() to call set_page_dirty() instead of
set_page_dirty_lock(). A call to lock_page() is unacceptable in an rpciod
callback function.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

NFS: Fix handful of compiler warnings in direct.c

This patch fixes a couple of signage issues that were causing an Oops
when running the LTP diotest4 test. get_user_pages() returns a signed
error, hence we need to be careful when comparing with the unsigned
number of pages from data->npages.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

NFS: Avoid a deadlock situation on write

When processes are allowed to attempt to lock a non-contiguous range of nfs
write requests, it is possible for generic_writepages to 'wrap round' the
address space, and call writepage() on a request that is already locked by
the same process.

We avoid the deadlock by checking if the page index is contiguous with the
list of nfs write requests that is already held in our
nfs_pageio_descriptor prior to attempting to lock a new request.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

[CRYPTO] geode: Fix in-place operations and set key

Allow in-place crypto operations.  Also remove the coherent user flag
(we use it automagically now), and by default use the user written
key rather then the HW hidden key - this makes crypto just work without
any special considerations, and thats OK, since its our only usage
model.

Signed-off-by: Jordan Crouse <jordan.crouse@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

mmc: add maintainer for ARM Primecell controller

Russell King handles this driver.

Signed-off-by: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>

mmc: add maintainer for iMX MMC interface

Pavel Pisa takes on the role of administrating this driver.

Signed-off-by: Pavel Pisa <ppisa@pikron.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>

mmc: Add maintainers for TI OMAP MMC interface

Carlos Aguiar and Anderson Briglia are interested in making sure
the driver works for existing boards as they have access to them,
and Syed Khasim can make it work for new omaps (2430, 3430).

Signed-off-by: Syed Khasim <x0khasim@ti.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>

mmc: mark unmaintained drivers

Most of the host controller drivers in the MMC layer lacks an
official maintainer. Make sure this is mentioned in MAINTAINERS
in case someone wants to pick up the ball.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>

mmc: clean up unused parts of block driver

Remove dead code and unused structs from the block driver.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>

boot documentation: clarifications

Textual clarifications (and fix an off-by-one error) based on feedback
mostly from Jeremy Fitzhardinge.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

i386 bigsmp: section mismatch fixes

  WARNING: arch/i386/mach-generic/built-in.o(.data+0xc4): Section mismatch: reference to .init.text: (between 'apic_bigsmp' and 'cpu.4905')

This appears to be resolvable by removing all the __init and __initdata
qualifiers from arch/i386/mach-generic/bigsmp.c

Signed-off-by: William Irwin <bill.irwin@oracle.com>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/isdn/hardware/eicon/message.c warning fixes

Squash these:

drivers/isdn/hardware/eicon/message.c: In function 'api_put':
drivers/isdn/hardware/eicon/message.c:536: warning: cast from pointer to integer of different size
drivers/isdn/hardware/eicon/message.c: In function 'plci_free_msg_in_queue':
drivers/isdn/hardware/eicon/message.c:1035: warning: cast to pointer from integer of different size
drivers/isdn/hardware/eicon/message.c: In function 'data_b3_req':
drivers/isdn/hardware/eicon/message.c:3121: warning: cast to pointer from integer of different size
drivers/isdn/hardware/eicon/message.c:3154: warning: cast to pointer from integer of different size
drivers/isdn/hardware/eicon/message.c: In function 'callback':
drivers/isdn/hardware/eicon/message.c:4060: warning: cast to pointer from integer of different size
drivers/isdn/hardware/eicon/message.c: In function 'nl_ind':
drivers/isdn/hardware/eicon/message.c:7137: warning: cast from pointer to integer of different size

Cc: Karsten Keil <kkeil@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

capifunc warning fixes

squish these:

drivers/isdn/hardware/eicon/capifunc.c: In function 'TransmitBufferSet':
drivers/isdn/hardware/eicon/capifunc.c:192: warning: cast to pointer from integer of different size
drivers/isdn/hardware/eicon/capifunc.c: In function 'TransmitBufferGet':
drivers/isdn/hardware/eicon/capifunc.c:197: warning: cast from pointer to integer of different size
drivers/isdn/hardware/eicon/capifunc.c:198: warning: cast from pointer to integer of different size
drivers/isdn/hardware/eicon/capifunc.c:200: warning: cast from pointer to integer of different size
drivers/isdn/hardware/eicon/capifunc.c: In function 'TransmitBufferFree':
drivers/isdn/hardware/eicon/capifunc.c:205: warning: cast from pointer to integer of different size
drivers/isdn/hardware/eicon/capifunc.c:206: warning: cast from pointer to integer of different size
drivers/isdn/hardware/eicon/capifunc.c: In function 'sendf':
drivers/isdn/hardware/eicon/capifunc.c:304: warning: cast to pointer from integer of different size
drivers/isdn/hardware/eicon/capifunc.c:304: warning: cast to pointer from integer of different size
drivers/isdn/hardware/eicon/capifunc.c:321: warning: cast to pointer from integer of different size

Cc: Karsten Keil <kkeil@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

omap_uwire: SPI_CPHA mode bugfix

The omap_uwire controller driver handles SPI_CPHA incorrectly;
It should mean:

  CPHA=0 ... sample at leading edge of clock
  CPHA=1 ... sample at trailing edge of clock

This bug has been masked by inverse bugs in layered drivers;
and was uncovered by running some of them on non-OMAP hardware.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Documentation/memory-barriers.txt: various fixes

Fix various grammatical issues in Documentation/memory-barriers.txt.

Cc: "Robert P. J. Day" <rpjday@mindspring.com>
Signed-off-by: Jarek Poplawski <jarkao2@o2.pl>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

i386: fix early usage of atomic_add_return and local_add_return on real i386

The check (boot_cpu_data.x86 == 3) in atomic_add_return() and
local_add_return() fails, when those operations are used before
boot_cpu_data is filled in.

Change the check to (boot_cpu_data.x86 <= 3) to fix this.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Prevent going idle with softirq pending

The NOHZ patch contains a check for softirqs pending when a CPU goes idle.
The BUG is unrelated to NOHZ, it just was made visible by the NOHZ patch.
The BUG showed up mainly on P4 / hyperthreading enabled machines which lead
the investigations into the wrong direction in the first place.  The real
cause is in cond_resched_softirq():

cond_resched_softirq() is enabling softirqs without invoking the softirq
daemon when softirqs are pending.  This leads to the warning message in the
NOHZ idle code:

t1 runs softirq disabled code on CPU#0
interrupt happens, softirq is raised, but deferred (softirqs disabled)
t1 calls cond_resched_softirq()
enables softirqs via _local_bh_enable()
calls schedule()
t2 runs
t1 is migrated to CPU#1
t2 is done and invokes idle()
NOHZ detects the pending softirq

Fix: change _local_bh_enable() to local_bh_enable() so the softirq
daemon is invoked.

Thanks to Anant Nitya for debugging this with great patience !

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

ehci-fsl: fix cache coherency problem on system with large memory

The patch fixes bug http://bugzilla.kernel.org/show_bug.cgi?id=7482.

It sets USB snooping on 4G space for PowerPC platforms without
CONFIG_NOT_COHERENT_CACHE defined.

Reported-by: Stefan Meyer <reyems@telkomsa.net>
Signed-off-by: Li Yang <leoli@freescale.com>
Cc: Greg KH <greg@kroah.com>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

document clocksources

Document the available clocksources per platform and move clocksource= into
the correct (alpha) location in the file.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

eCryptfs: delay writing 0's after llseek until write

Delay writing 0's out in eCryptfs after a seek past the end of the file
until data is actually written.

http://www.opengroup.org/onlinepubs/009695399/functions/lseek.html

``The lseek() function shall not, by itself, extend the size of a
file.''

Without this fix, applications that lseek() past the end of the file without
writing will experience unexpected behavior.

Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Off by one in floppy.c

Another coverity patch i forgot to resend, original thread here
http://marc.info/?l=linux-kernel&m=115144559823592&w=2

In case drive == N_DRIVE, we get one past the drive_params array.

Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

applesmc - sensors patch missing from 2.6.22-rc2

Add name file needed by lm_sensors user-space applications in applesmc
sysfs tree.

Cc: Soeren Sonnenburg <kernel@nn7.de>
Cc: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

HiSax: fix error checking for hisax_register()]

This patch (as875) adds error-checking to the callers of hisax_register().
It also changes an error pathway in that routine, making it return an error
code rather than 0.

This fixes Bugzilla #7960.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Karsten Keil <kkeil@suse.de>
Cc: Martin Bachem <info@colognechip.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

documentation: Documentation/initrd.txt

Final clearification of the pivot_root mechanism, which brings this
document really up-to-date.

Signed-off-by: Domenico Andreoli <cavok@dandreoli.com>
Cc: "Randy.Dunlap" <rdunlap@xenotime.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

md: fix bug with linear hot-add and elsewhere

Adding a drive to a linear array seems to have stopped working, due to changes
elsewhere in md, and insufficient ongoing testing...

So the patch to make linear hot-add work in the first place introduced a
subtle bug elsewhere that interracts poorly with older version of mdadm.

This fixes it all up.

Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

md: don't write more than is required of the last page of a bitmap

It is possible that real data or metadata follows the bitmap without full page
alignment.

So limit the last write to be only the required number of bytes, rounded up to
the hard sector size of the device.

Signed-off-by: Neil Brown <neilb@suse.de>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

md: avoid overflow in raid0 calculation with large components

If a raid0 has a component device larger than 4TB, and is accessed on a 32bit
machines, then as 'chunk' is unsigned long,

   chunk << chunksize_bits

can overflow (this can be as high as the size of the device in KB).  chunk
itself will not overflow (without triggering a BUG).

So change 'chunk' to be 'sector_t, and get rid of the 'BUG' as it becomes
impossible to hit.

Cc: "Jeff Zheng" <Jeff.Zheng@endace.com>
Signed-off-by: Neil Brown <neilb@suse.de>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

i386, x86-64: show that CONFIG_HOTPLUG_CPU is required for suspend on SMP

It's not sufficiently documented that CONFIG_HOTPLUG_CPU is required for
suspend/hibernation on SMP.

Point out the non-obvious.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

i2o: eliminate a peculiar constraint on i2o_max_drivers

There is no reason i2o_max_drivers must be a power of two.  This patch
eliminates such a constraint.

Cc: Markus Lidel <Markus.Lidel@shadowconnect.com>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

i2o: fix notifiers when max_drivers is configured

Maximum number of I2O drivers which could be registered is configurable by
max_drivers module parameter.

But the module parameter is ignored and default value (I2O_MAX_DRIVERS = 8)
is used in the loops to notify all registered drivers.

Cc: Markus Lidel <Markus.Lidel@shadowconnect.com>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

i2o: destroy event queue only when drv->event is set

i2o_driver_register() initalizes event queue for driver only when
drv->event is set.  So similarly the event queue should be destroyed only
when drv->event is set in the error path.  Otherwise destroy_workqueue()
will called with NULL.

Cc: Markus Lidel <Markus.Lidel@shadowconnect.com>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

signalfd: retrieve multiple signals with one read() call

Gathering signals in bulk enables server applications to drain a signal
queue (almost full of realtime signals) more efficiently by reducing the
syscall and file look-up overhead.

Very similar to the sigtimedwait4() call described by Niels Provos, Chuck
Lever, and Stephen Tweedie in a paper entitled "Analyzing the Overload
Behavior of a Simple Web Server".  The paper lists more details and
advantages.

Signed-off-by: Davi E. M. Arnaut <davi@haxent.com.br>
Acked-by: Davide Libenzi <davidel@xmailserver.org>
Cc: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

update dontdiff file

Update dontdiff file by adding entries from many .gitignore files.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

power: Fix sizeof(PAGE_SIZE) typo

Fix sizeof(PAGE_SIZE) typo.  It should be just PAGE_SIZE for zeroing the
swsusp_header.

Signed-off-by: OGAWA Hirofumi <hogawa@miraclelinux.com>
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Misc: phantom, take care of pci posting

phantom, take care of pci posting

thanks to akpm for pointing this out

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

phantom: move to unlocked_ioctl

phantom's ioctl is often (4000 times a sec or so) invoked, don't acquire
BKL and block other processes.

Signed-off-by: Jiri Slaby <xslaby@phantom.fi.muni.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

simplify cleanup_workqueue_thread()

cleanup_workqueue_thread() and cwq_should_stop() are overcomplicated.

Convert the code to use kthread_should_stop/kthread_stop as was
suggested by Gautham and Srivatsa.

In particular this patch removes the (unlikely) busy-wait loop from the
exit path, it was a temporary and ugly kludge (if not a bug).

Note: the current code was designed to solve another old problem:
work->func can't share locks with hotplug callbacks.  I think this could
be done, see

http://marc.info/?l=linux-kernel&m=116905366428633

but this needs some more complications to preserve CPU affinity of
cwq->thread during cpu_up().  A freezer-based hotplug looks more
appealing.

[akpm@linux-foundation.org: make it more tolerant of gcc borkenness]
Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Zilvinas Valinskas <zilvinas@wilibox.com>
Cc: Gautham R Shenoy <ego@in.ibm.com>
Cc: Srivatsa Vaddagiri <vatsa@in.ibm.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Char: cyclades, fix deadlock

An omitted unlock.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

SLUB Debug: fix check for super sized slabs (>512k 64bit, >256k 32bit)

The check for super sized slabs where we can no longer move the free
pointer behind the object for debugging purposes etc is accessing a
field that is not setup yet.  We must use objsize here since the size of
the slab has not been determined yet.

The effect of this is that a global slab shrink via "slabinfo -s" will
show errors about offsets being wrong if booted with slub_debug.
Potentially there are other troubles with huge slabs under slub_debug
because the calculated free pointer offset is truncated.

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

fix unused setup_nr_node_ids

mm/page_alloc.c:931: warning: 'setup_nr_node_ids' defined but not used

This is now the only (!) compiler warning I get in my UML build :)

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

fuse: delete inode on drop

When inode is dropped (no more references) delete it from cache.

There's not much point in keeping it cached, when a new lookup will refresh
the attributes anyway.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

fuse: generic_write_checks() for direct_io

This fixes O_APPEND in direct IO mode.  Also checks writes against file size
limits, notably rlimits.

Reported by Greg Bruno.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

uselib: add missing MNT_NOEXEC check

We don't allow loading ELF shared library from noexec points so the
same should apply to sys_uselib aswell.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Ulrich Drepper <drepper@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Missing 'const' from reiserfs MIN_KEY declaration.

In stree.c, MIN_KEY is declared const. The extern declaration in dir.c
doesn't match...

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

imxfb: fix memory hole

info->pseudo_palette was previously kmalloced.  Do not overwrite it afterwards

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Antonino Daplas <adaplas@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

imxfb: remove ifdefs

Here are some small fixes for the imxfb framebuffer driver:

 - remove ifndef for MX1FS2 platform which is not present in the kernel.
 - REV, CLS, PS and SPL_SPR are only needed with some sharp displays.
   Only setup the corresponding io pins when such a display is connected.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Antonino Daplas <adaplas@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

ps3fb: use FB_SYS_* instead of FB_CFB_*

ps3fb: Use the FB_SYS_* operations instead of the FB_CFB_* operations as the
actual frame buffer memory is part of system RAM

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Antonino Daplas <adaplas@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

w100fb: fix compile warnings

Fix compile warnings from w100fb.c.  Attribute registration failure doesn't
stop the driver working so just warn about it.

Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Antonino Daplas <adaplas@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

pm3fb: various fixes

 - fix 16-bit RGBA 4444 and 5551 modes (use fbset -rgba to set them)
 - kill wmb() after each register write by PM3_SLOW_WRITE_REG
 - kill inaccurate comments (leftovers from skeletonfb.c)
 - kill PCI class restriction, now it is more general and shorter
 - white spaces and other minor fixes and source reducing

Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Antonino Daplas <adaplas@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

pm2fb: RDAC_WR barriers clean up

This patch fixes a possible barriers problem in RDAC_WR functions, then
remove redudant ones.

It also removes one unneeded register load from blitter function().

Signed-off-by: Krzysztof.Helt <krzysztof.h1@wp.pl>
Signed-off-by: Antonino Daplas <adaplas@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

fbdev: cleanup of sparc FB options

This patch puts all SBUS/UPA selection under one option "SBUS/UPA
framebuffers" and moves all sparc specific drivers next to them in one group.

Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Antonino Daplas <adaplas@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

spi: potential memleak in spidev_ioctl

'ioc' should be deallocated if __copy_from_user fails (found by Coverity
- CID 1644).

Signed-off-by: Florin Malita <fmalita@gmail.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

optimize compat_core_sys_select() by a using stack space for small fd sets

Optimize select by a using stack space for small fd sets.
core_sys_select() already has this optimization.  This is for compat
version.

Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

recalc_sigpending_tsk fixes

Steve Hawkes discovered a problem where recalc_sigpending_tsk was called in
do_sigaction but no signal_wake_up call was made, preventing later signals
from waking up blocked threads with TIF_SIGPENDING already set.

In fact, the few other calls to recalc_sigpending_tsk outside the signals
code are also subject to this problem in other race conditions.

This change makes recalc_sigpending_tsk private to the signals code.  It
changes the outside calls, as well as do_sigaction, to use the new
recalc_sigpending_and_wake instead.

Signed-off-by: Roland McGrath <roland@redhat.com>
Cc: <Steve.Hawkes@motorola.com>
Cc: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Avoid zero size allocation in cache_k8_northbridges()

kmalloc for flush_words resulted in zero size allocation when no
k8_northbridges existed.  Short circuit the code path for this case.

Also remove uneeded zeroing of num_k8_northbridges just after checking if
it is zero.

Signed-off-by: Ben Collins <bcollins@ubuntu.com>
Cc: Andi Kleen <ak@suse.de>
Cc: Dave Jones <davej@codemonkey.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Documentation: fix the explanation of Kconfig files

Fix the obvious errors in the explanation of Kconfig files.

Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

prohibit rcutorture from being compiled into the kernel

There have been a number of instances where people have accidentally compiled
rcutorture into the kernel (CONFIG_RCU_TORTURE_TEST=y), which has never been
useful, and has often resulted in great frustration.

The attached patch prohibits rcutorture from being compiled into the
kernel.  It may be excluded altogether or compiled as a module.  People
wishing to have rcutorture hammer their machine immediately upon boot
are free to hand-edit lib/Kconfig.debug to remove the "depends on m"
line.

Thanks to Randy Dunlap for the trick that makes this work.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Josh Triplett <josh@kernel.org>
Cc: "Randy.Dunlap" <rdunlap@xenotime.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>