This patch fixes an rcutorture bug found by Eric Sesterhenn that
resulted in oopses in response to "rmmod rcutorture".  The problem
was in some new code that attempted to handle the case where a system
is shut down while rcutorture is still running, for example, when
rcutorture is built into the kernel so that it cannot be removed.
The fix causes the rcutorture threads to "park" in an
schedule_timeout_uninterruptible(MAX_SCHEDULE_TIMEOUT) rather than
trying to get them to terminate cleanly.  Concurrent shutdown and
rmmod is illegal.

I believe that this is 2.6.29 material, as it is used in some testing
setups.

For reference, here are the rcutorture operating modes:

CONFIG_RCU_TORTURE_TEST=m

	This is the normal rcutorture build.  Use "modprobe rcutorture"
	(with optional arguments) to start, and "rmmod rcutorture" to
	stop.  If you shut the system down without doing the rmmod, you
	should see console output like:

	rcutorture thread rcu_torture_writer parking due to system shutdown

	One for each rcutorture kthread.

CONFIG_RCU_TORTURE_TEST=y
CONFIG_RCU_TORTURE_TEST_RUNNABLE=n

	Use this if you want rcutorture built in, but don't want the
	test to start running during early boot.  To start the
	torturing:

		echo 1 > /proc/sys/kernel/rcutorture_runnable

	To stop the torturing, s/1/0/

	You will get "parking" console messages as noted above when
	you shut the system down.

CONFIG_RCU_TORTURE_TEST=y
CONFIG_RCU_TORTURE_TEST_RUNNABLE=y

	Same as above, except that the torturing starts during early
	boot.  Only for the stout of heart and strong of stomach.
	The same /proc entry noted above may be used to control the
	test.
Located-by: NEric Sesterhenn <snakebyte@gmx.de>
Tested-by: NEric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: NIngo Molnar <mingo@elte.hu>

Fixes compile breakage as linux/byteorder.h was removed.
Signed-off-by: NHarvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6:
  firewire: reorder struct fw_card for better cache efficiency
  firewire: fix resetting of bus manager retry counter
  firewire: improve refcounting of fw_card
  firewire: typo in comment
  firewire: fix small memory leak at module removal
  firewire: fw-sbp2: remove unnecessary locking
  ieee1934: dv1394: interrupt enabling/disabling broken on big-endian
  ieee1394: dv1394: annotate frame input/output structs as little endian
  ieee1394: eth1394: trivial sparse annotations
  ieee1394: mark bus_info_data as a __be32 array
  ieee1394: replace CSR_SET_BUS_INFO_GENERATION macro
  ieee1394: pcilynx: trivial endian annotation
  ieee1394: ignore nonzero Bus_Info_Block.max_rom, fetch config ROM in quadlets
  ieee1394: consolidate uses of IEEE1934_BUSID_MAGIC
  ieee1394: ohci1394: flush MMIO writes before delay in initialization
  ieee1394: ohci1394: pass error codes from request_irq through
  ieee1394: ohci1394: don't leave interrupts enabled during suspend/resume
  ieee1394: mark all hpsb_address_ops instances as const
  ieee1394: replace a GFP_ATOMIC by GFP_KERNEL allocation

* 'proc-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/adobriyan/proc:
  proc: remove write-only variable in proc_pident_lookup()
  proc: fix sparse warning
  proc: add /proc/*/stack
  proc: remove '##' usage
  proc: remove useless WARN_ONs
  proc: stop using BKL

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6: (171 commits)
  Blackfin arch: fix bug - BF527 0.2 silicon has different CPUID (DSPID) value
  Blackfin arch: Enlarge flash partition for kenel for bf533/bf537 boards
  Blackfin arch: fix bug: kernel crash when enable SDIO host driver
  Blackfin arch: Print FP at level KERN_NOTICE
  Blackfin arch: drop ad73311 test code
  Blackfin arch: update board default configs
  Blackfin arch: Set PB4 as the default irq for bf548 board v1.4+.
  Blackfin arch: fix typo in early printk bit size processing
  Blackfin arch: enable reprogram cclk and sclk for bf518f-ezbrd
  Blackfin arch: add SDIO host driver platform data
  Blackfin arch: fix bug - kernel stops at initial console
  Blackfin arch: fix bug - kernel crash after config IP for ethernet port
  Blackfin arch: add sdh support for bf518f-ezbrd
  Blackfin arch: fix bug - kernel detects BF532 incorrectly
  Blackfin arch: add () to avoid warnings from gcc
  Blackfin arch: change HWTRACE Kconfig and set it on default
  Blackfin arch: Clean oprofile build path for blackfin
  Blackfin arch: remove hardware PM code, oprofile not use it
  Blackfin arch: rewrite get_sclk()/get_vco()
  Blackfin arch: cleanup and unify the ins functions
  ...

* 'hwmon-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6: (29 commits)
  hwmon: Fix various typos
  hwmon: Check for ACPI resource conflicts
  hwmon: (lm70) Add TI TMP121 support
  hwmon: (lm70) Code streamlining and cleanup
  hwmon: Deprecate the fscher and fscpos drivers
  hwmon: (fschmd) Add watchdog support
  hwmon: (fschmd) Cleanups for watchdog support
  hwmon: (i5k_amb) Load automatically on all 5000/5400 chipsets
  hwmon: (it87) Add support for the ITE IT8720F
  hwmon: Don't overuse I2C_CLIENT_MODULE_PARM
  hwmon: Add LTC4245 driver
  hwmon: (f71882fg) Fix fan_to/from_reg prototypes
  hwmon: (f71882fg) Printout fan modes
  hwmon: (f71882fg) Add documentation
  hwmon: (f71882fg) Fix auto_channels_temp temp numbering with f8000
  hwmon: (f71882fg) Add missing pwm3 attr for f71862fg
  hwmon: (f71882fg) Add F8000 support
  hwmon: (f71882fg) Remove the fan_mode module option
  hwmon: (f71882fg) Separate max and crit alarm and beep
  hwmon: (f71882fg) Check for hwmon powerdown state
  ...

* 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6:
  i2c: Use snprintf to set adapter names
  Input: apanel - convert to new i2c binding
  i2c: Drop I2C_CLASS_CAM_DIGITAL
  i2c: Drop I2C_CLASS_CAM_ANALOG and I2C_CLASS_SOUND
  i2c: Drop I2C_CLASS_ALL
  i2c: Get rid of remaining bus_id access
  i2c: Replace bus_id with dev_name(), dev_set_name()

* git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6:
  avr32: Move syscalls.h under arch/avr32/include/asm/
  avr32: Define DIE_OOPS
  avr32: Remove DMATEST from defconfigs
  arch/avr32: Eliminate NULL test and memset after alloc_bootmem
  avr32: data param to at32_add_device_mci() must be non-NULL
  atmel-mci: move atmel-mci.h file to include/linux
  avr32: Hammerhead board support
  avr32: Allow reserving multiple pins at once
  favr-32: Remove deprecated call
  MIMC200: Remove deprecated call
  avr: struct device - replace bus_id with dev_name(), dev_set_name()
  avr32: Introducing asm/syscalls.h

* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixes:
  GFS2: Fix typo in gfs_page_mkwrite()
  GFS2: LSF and LBD are now one and the same
  GFS2: Set GFP_NOFS when allocating page on write

* git://git.kernel.org/pub/scm/linux/kernel/git/czankel/xtensa-2.6:
  xtensa: Update platform files to reflect new location of the header files.
  xtensa: switch to packed struct unaligned access implementation
  xtensa: Add xt2000 support files.
  xtensa: move headers files to arch/xtensa/include
  xtensa: use the new byteorder headers

disable_nonboot_cpus calls _cpu_down. But _cpu_down requires that the
caller already created the stop_machine workqueue (like cpu_down does).
Otherwise a call to stop_machine will lead to accesses to random memory
regions.

When introducing this new interface (9ea09af3
"stop_machine: introduce stop_machine_create/destroy") I missed the second
call site of _cpu_down.
So add the missing stop_machine_create/destroy calls to disable_nonboot_cpus
as well.

Fixes suspend-to-ram/disk and also this bug:

[  286.547348] BUG: unable to handle kernel paging request at 6b6b6b6b
[  286.548940] IP: [<c0150ca4>] __stop_machine+0x88/0xe3
[  286.550598] Oops: 0002 [#1] SMP
[  286.560580] Pid: 3273, comm: halt Not tainted (2.6.28-06127-g238c6d54
[  286.560580] EIP: is at __stop_machine+0x88/0xe3
[  286.560580] Process halt (pid: 3273, ti=f1a28000 task=f4530f30
[  286.560580] Call Trace:
[  286.560580]  [<c03d04e4>] ? _cpu_down+0x10f/0x234
[  286.560580]  [<c012a57e>] ? disable_nonboot_cpus+0x58/0xdc
[  286.560580]  [<c01360c0>] ? kernel_poweroff+0x22/0x39
[  286.560580]  [<c0136301>] ? sys_reboot+0xde/0x14c
[  286.560580]  [<c01331b2>] ? complete_signal+0x179/0x191
[  286.560580]  [<c0133396>] ? send_signal+0x1cc/0x1e1
[  286.560580]  [<c03de418>] ? _spin_unlock_irqrestore+0x2d/0x3c
[  286.560580]  [<c0133b65>] ? group_send_signal_info+0x58/0x61
[  286.560580]  [<c0133b9e>] ? kill_pid_info+0x30/0x3a
[  286.560580]  [<c0133d49>] ? sys_kill+0x75/0x13a
[  286.560580]  [<c01a06cb>] ? mntput_no_expire+ox1f/0x101
[  286.560580]  [<c019b3b3>] ? dput+0x1e/0x105
[  286.560580]  [<c018ef87>] ?  __fput+0x150/0x158
[  286.560580]  [<c0157abf>] ? audit_syscall_entry+0x137/0x159
[  286.560580]  [<c010329f>] ? sysenter_do_call+0x12/0x34
Reported-and-tested-by: N"Justin P. Mattock" <justinmattock@gmail.com>
Reviewed-by: NPekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
Tested-by: NIngo Molnar <mingo@elte.hu>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Missing an include and thus breaks the x86-64 build.
Signed-off-by: NAlan Cox <alan@redhat.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (24 commits)
  trivial: chack -> check typo fix in main Makefile
  trivial: Add a space (and a comma) to a printk in 8250 driver
  trivial: Fix misspelling of "firmware" in docs for ncr53c8xx/sym53c8xx
  trivial: Fix misspelling of "firmware" in powerpc Makefile
  trivial: Fix misspelling of "firmware" in usb.c
  trivial: Fix misspelling of "firmware" in qla1280.c
  trivial: Fix misspelling of "firmware" in a100u2w.c
  trivial: Fix misspelling of "firmware" in megaraid.c
  trivial: Fix misspelling of "firmware" in ql4_mbx.c
  trivial: Fix misspelling of "firmware" in acpi_memhotplug.c
  trivial: Fix misspelling of "firmware" in ipw2100.c
  trivial: Fix misspelling of "firmware" in atmel.c
  trivial: Fix misspelled firmware in Kconfig
  trivial: fix an -> a typos in documentation and comments
  trivial: fix then -> than typos in comments and documentation
  trivial: update Jesper Juhl CREDITS entry with new email
  trivial: fix singal -> signal typo
  trivial: Fix incorrect use of "loose" in event.c
  trivial: printk: fix indentation of new_text_line declaration
  trivial: rtc-stk17ta8: fix sparse warning
  ...

Commit 07903407 ("HID: hiddev cleanup -- handle all error conditions
properly") by mistake removed proper initialization of hid->hiddev pointer
in hiddev_connect() in case usb_register_dev() succeeds for the hiddev node.
Put it properly back in place.
Reported-and-tested-by: NGabriel C <nix.or.die@googlemail.com>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

The typedefs for __u64 and __s64 where fixed to be available for other
compiler on May 2 2008 by H.  Peter Anvin (in commit edfa5cfa)
Acked-by: NH. Peter Anvin <hpa@zytor.com>
Signed-off-by: NDetlef Riekenberg <wine.dev@web.de>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Signed-off-by: NJean Delvare <khali@linux-fr.org>
Acked-by: NHans de Goede <hdegoede@redhat.com>
Acked-by: NDavid Hubbard <david.c.hubbard@gmail.com>

Check for ACPI resource conflicts in hwmon drivers. I've included
all Super-I/O and PCI drivers.

I've voluntarily left out:
* Vendor-specific drivers: if they conflicted on any system, this would
  pretty much mean that they conflict on all systems, and we would know
  by now.
* Legacy ISA drivers (lm78 and w83781d): they only support chips found
  on old designs were ACPI either wasn't supported or didn't deal with
  thermal management.
* Drivers accessing the I/O resources indirectly (e.g. through SMBus):
  the checks are already done where they belong, i.e. in the bus drivers.
Signed-off-by: NJean Delvare <jdelvare@suse.de>
Acked-by: NDavid Hubbard <david.c.hubbard@gmail.com>

The Texas Instruments TMP121 is a SPI temperature sensor very similar
to the LM70, with slightly higher resolution.  This patch extends the
LM70 driver to support the TMP121.  The TMP123 differs in pin assign-
ment.
Signed-off-by: NManuel Lauss <mano@roarinelk.homelinux.net>
Signed-off-by: NJean Delvare <khali@linux-fr.org>

This fixes a byteswap bug in the LM70 temperature sensor driver,
which was previously covered up by a converse bug in the driver
for the LM70EVAL-LLP board (which is also fixed).

Other fixes:  doc updates, remove an annoying msleep(), and improve
three-wire protocol handling.
Signed-off-by: NKaiwan N Billimoria <kaiwan@designergraphix.com>
[ dbrownell@users.sourceforge.net: doc and whitespace tweaks ]
Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: NJean Delvare <khali@linux-fr.org>

Now that the new merged fschmd driver has gained support for the watchdog
integrated into these IC's, there is no more reason to keep the old fscher
and fscpos drivers around, so mark them as deprecated.
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NJean Delvare <khali@linux-fr.org>

This patch adds support for the watchdog part found in _all_ supported FSC
sensor chips.
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NJean Delvare <khali@linux-fr.org>

Various small cleanups in preparation of adding watchdog support,
mostly removing _MASK postfix from defines which are not masks.
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NJean Delvare <khali@linux-fr.org>

It turns out that we cannot create a pci_driver in this driver because PCI will
not call this module's probe function if the i5000-edac driver is already
loaded.  That said, we only want one value (AMBASE) from the PCI config space.
Neither driver alters this value, so it's safe to read it.  However, we still
want the module aliases, so provide that.
Signed-off-by: NDarrick J. Wong <djwong@us.ibm.com>
Signed-off-by: NJean Delvare <khali@linux-fr.org>

Allow it87.c to handle IT8720 chipset like IT8718 in order to
retrieve voltage, temperatures and fans speed from sensors
tools. Also updating the related documentation.
Signed-off-by: NJean-Marc Spaggiari <jean-marc@spaggiari.org>
Signed-off-by: NJean Delvare <khali@linux-fr.org>

I2C_CLIENT_MODULE_PARM is overkill for force_subclients. We really
only use 4 out of the 48 slots, so we're better defining a custom
variable instead. This change saves 92 bytes of data for each of the
five drivers affected.
Signed-off-by: NJean Delvare <khali@linux-fr.org>
Cc: Wolfgang Grandegger <wg@grandegger.com>
Acked-by: NMarc Hulsman <m.hulsman@tudelft.nl>
Cc: Mark M. Hoffman <mhoffman@lightlink.com>

Add Linux support for the Linear Technology LTC4245 Multiple Supply Hot
Swap controller I2C monitoring interface.
Signed-off-by: NIra W. Snyder <iws@ovro.caltech.edu>
Acked-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NJean Delvare <khali@linux-fr.org>

The RPM after conversion from / before conversion to a register value can be
much more than 65535 (up to 1500000), so putting this into an u16 can cause
overflows. This changes the functions to use an int to store / get RPM instead.
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NJean Delvare <khali@linux-fr.org>

Print the mode (duty-cycle or RPM) of each fan on driver load.
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NJean Delvare <khali@linux-fr.org>

Add some documentation about the f71882fg driver, and update the Kconfig
documentation to report the new supported models.
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NJean Delvare <khali@linux-fr.org>

Adjust auto_channels_temp show and store functions for different numbering of
temps between f8000 and other supported models.
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NJean Delvare <khali@linux-fr.org>

For some reason the fan_attr array for the f71862fg was missing the attr for
the 3th pwm output. This patch fixes this.
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NJean Delvare <khali@linux-fr.org>

And (finally) the patch actually adding f8000 support.
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NJean Delvare <khali@linux-fr.org>

Remove the fan_mode module option it was a monstrosity to begin with, and
when adding support for the F8000 it becomes a real pain!
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NJean Delvare <khali@linux-fr.org>

While studying the datasheets for adding F8000 support, I noticed that the
F718x2 has separate alarms (and beep control) for its max and crit limits.

We keep the temp#_alarm attributes as they are, even though it would be more
logical to rename them to temp#_max_alarm. Because lm_sensors v2 depends
on them.
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NJean Delvare <khali@linux-fr.org>

More F8000 prep work. Take over the checking if the hwmon part is not
powered down from the standalone f8000 driver.

This check is valid for all supported models.
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NJean Delvare <khali@linux-fr.org>

Simplify fan and temp hyst. handling by treating the registers as an array of
nibbles instead of using switch cases. Also unify the way hysts are handled
between temp and fans, the temp code was storing the actual per temp hyst
values in 4 u8's, where as the fan code was storing actual register values.
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NJean Delvare <khali@linux-fr.org>

While working on adding F8000 support I noticed that various of the
store sysfs functions (and a few of the show also) had issues.

This patch fixes the following issues in these functions:
* store: storing the result of strto[u]l in an int, resulting in a possible
  overflow before boundary checking
* store: use of f71882fg_update_device(), we don't want to read the whole
  device in store functions, just the registers we need
* store: use of cached register values instead of reading the needed regs
  in the store function, including cases where f71882fg_update_device() was
  not used, this could cause real isues
* show: shown value is a calculation of 2 or more cached register reads,
  without locking the data struct.
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NJean Delvare <khali@linux-fr.org>

This patch is a preparation patch for adding F8000 support to the f71882fg
driver. If you look at the register addresses and esp, the bits used for
the temperature channels, then you will notice that it appears that they
start at 1 in a system meant to start at 0. As the F8000 actually uses the 0
addresses and bits, this patch changes the f71882fg driver to take 4
temperatures numbered 0-3 in to account, using 1-3 in this new scheme for
the temperatures actually present in the F718x2FG.
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NJean Delvare <khali@linux-fr.org>

The f71882fg driver did some io to ioports it hadn't reserved yet in its
find (detect) function, this patches moves this io to the probe function
where these ports are reserved and this io belongs.
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NJean Delvare <khali@linux-fr.org>

This patch adds support for the Fintek f71862fg superio monitoring
functions to the f71882fg driver.

This support has been tested without problems on a Jetway J9F2 by
Tony McConnell.
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NJean Delvare <khali@linux-fr.org>