Commit Graph

3378 Commits

Author SHA1 Message Date
Len Brown
26b6f22366 Merge branches 'release' and 'menlo' into release
Conflicts:

	drivers/acpi/video.c

Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-07 03:18:04 -05:00
Len Brown
e5e54bc86a Merge branches 'release' and 'stats' into release 2008-02-07 03:13:36 -05:00
Len Brown
70ec75c5b8 Merge branches 'release', 'misc' and 'misc-2.6.25' into release 2008-02-07 03:13:13 -05:00
Len Brown
c64768a7d6 Merge branches 'release', 'bugzilla-6217', 'bugzilla-6629', 'bugzilla-6933', 'bugzilla-7186', 'bugzilla-8269', 'bugzilla-8570', 'bugzilla-9139', 'bugzilla-9277', 'bugzilla-9341', 'bugzilla-9444', 'bugzilla-9614', 'bugzilla-9643' and 'bugzilla-9644' into release 2008-02-07 03:09:43 -05:00
Len Brown
dd07a8db72 Merge branches 'release', 'asus', 'sony-laptop' and 'thinkpad' into release 2008-02-07 03:07:35 -05:00
Pavel Machek
23b168d425 PM: documentation cleanups
Signed-off-by: Pavel Machek <pavel@suse.cz>
Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-07 01:27:17 -05:00
Len Brown
5229e87d59 ACPI: create /sys/firmware/acpi/interrupts
See Documentation/ABI/testing/sysfs-firmware-acpi

Based-on-original-patch-by: Luming Yu <luming.yu@intel.com>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-06 22:27:06 -05:00
Markus Gaugusch
71fc47a9ad ACPI: basic initramfs DSDT override support
The basics of DSDT from initramfs. In case this option is selected,
populate_rootfs() is called a bit earlier to have the initramfs content
available during ACPI initialization.

This is a very similar path to the one available at
http://gaugusch.at/kernel.shtml but with some update in the
documentation, default set to No and the change of populate_rootfs() the
"Jeff Mahony way" (which avoids reading the initramfs twice).

Signed-off-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Eric Piel <eric.piel@tremplin-utc.net>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-06 22:07:41 -05:00
Josh Boyer
256ae6a720 Merge branch 'virtex-for-2.6.25' of git://git.secretlab.ca/git/linux-2.6-virtex into for-2.6.25 2008-02-06 21:06:45 -06:00
Valentine Barshak
41abd68e6f [POWERPC] 4xx: Add USB ehci-ppc-of dts bindings.
Adds EHCI OF bindings to documentation.

Signed-off-by: Valentine Barshak <vbarshak@ru.mvista.com>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2008-02-06 21:02:52 -06:00
Randy Dunlap
a80a438bd0 docbook: dmapool: fix fatal changed filename
Docbook fatal error, file was moved:
docproc: linux-2.6.24-git15/drivers/base/dmapool.c: No such file or directory

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06 16:45:02 -08:00
NeilBrown
c620727779 md: allow a maximum extent to be set for resyncing
This allows userspace to control resync/reshape progress and synchronise it
with other activities, such as shared access in a SAN, or backing up critical
sections during a tricky reshape.

Writing a number of sectors (which must be a multiple of the chunk size if
such is meaningful) causes a resync to pause when it gets to that point.

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>
2008-02-06 10:41:18 -08:00
Nick Piggin
529e55b6a5 fb: defio nopage
Convert fb defio from nopage to fault.
Switch from OOM to SIGBUS if the resource is not available.

Signed-off-by: Nick Piggin <npiggin@suse.de>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Jaya Kumar <jayakumar.lkml@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06 10:41:15 -08:00
Ville Syrjala
ad8dc96e3b w1-gpio: add GPIO w1 bus master driver
Add a GPIO 1-wire bus master driver.  The driver used the GPIO API to
control the wire and the GPIO pin can be specified using platform data
similar to i2c-gpio.  The driver was tested with AT91SAM9260 + DS2401.

Signed-off-by: Ville Syrjala <syrjala@sci.fi>
Cc: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
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>
2008-02-06 10:41:15 -08:00
Mike Frysinger
8696e70267 rtc: cleanup example code
No functional changes here, just tighten up style/whitespace.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Cc: Alessandro Zummo <a.zummo@towertech.it>
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>
2008-02-06 10:41:14 -08:00
Mike Frysinger
8a0ba4e017 rtc: update documentation wrt irq_set_freq
Document the proper use of the irq_set_freq function.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Cc: Alessandro Zummo <a.zummo@towertech.it>
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>
2008-02-06 10:41:14 -08:00
Abhishek Sagar
f47cd9b553 kprobes: kretprobe user entry-handler
Provide support to add an optional user defined callback to be run at
function entry of a kretprobe'd function.  Also modify the kprobe smoke
tests to include an entry-handler during the kretprobe sanity test.

Signed-off-by: Abhishek Sagar <sagar.abhishek@gmail.com>
Cc: Prasanna S Panchamukhi <prasanna@in.ibm.com>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
Acked-by: Jim Keniston <jkenisto@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06 10:41:11 -08:00
Richard Kennedy
dcc85cb618 Documentation: add hint about call traces & module symbols to BUG-HUNTING
Here's a couple of small additions to BUG-HUNTING.

1. point out that you can list code in gdb with only one command
	(gdb) l *(<symbol> + offset)

2. give a very brief hint how to decode module symbols in call traces

Signed-off-by: Richard Kennedy <richard@rsk.demon.co.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06 10:41:09 -08:00
Daniel Walker
1373bed34e docs: convert kref semaphore to mutex
Just converting this documentation semaphore reference, since we don't
want to promote semaphore usage.

Signed-off-by: Daniel Walker <dwalker@mvista.com>
Acked-by: Corey Minyard <minyard@acm.org>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06 10:41:09 -08:00
Daniel Walker
66656ebb5b docs: kernel-locking: Convert semaphore references
I converted some of the document to reflect mutex usage instead of
semaphore usage.  Since we shouldin't be promoting semaphore usage when
it's on it's way out..

Signed-off-by: Daniel Walker <dwalker@mvista.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06 10:41:07 -08:00
Daniel Drake
d156042f9f Documentation about unaligned memory access
Here's a document I wrote after figuring out what unaligned memory access
is all about.  I've tried to cover the information I was looking for when
trying to learn about this, without producing a hopelessly detailed/complex
spew.  I hope it is useful to others.

Signed-off-by: Daniel Drake <dsd@gentoo.org>
Cc: Rob Landley <rob@landley.net>
Cc: "Randy.Dunlap" <rdunlap@xenotime.net>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Jan Engelhardt <jengelh@computergmbh.de>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Kyle Moffett <mrmacman_g4@mac.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06 10:41:07 -08:00
Eric Dumazet
9cfe015aa4 get rid of NR_OPEN and introduce a sysctl_nr_open
NR_OPEN (historically set to 1024*1024) actually forbids processes to open
more than 1024*1024 handles.

Unfortunatly some production servers hit the not so 'ridiculously high
value' of 1024*1024 file descriptors per process.

Changing NR_OPEN is not considered safe because of vmalloc space potential
exhaust.

This patch introduces a new sysctl (/proc/sys/fs/nr_open) wich defaults to
1024*1024, so that admins can decide to change this limit if their workload
needs it.

[akpm@linux-foundation.org: export it for sparc64]
Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06 10:41:06 -08:00
Adrian Bunk
83bad1d764 scheduled OSS driver removal
This patch contains the scheduled removal of OSS drivers whose config
options have been removed in 2.6.23.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06 10:41:02 -08:00
Stephen Neuendorffer
ef66a9d222 [POWERPC] Xilinx: hwicap: update booting-without-of.txt
The ICAP device in Xilinx FPGAs differs slightly between different
FPGAs.  The driver needs an additional attribute in the device tree to
distinguish this.

Signed-off-by: Stephen Neuendorffer <stephen.neuendorffer@xilinx.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2008-02-06 10:23:52 -07:00
Denis Cheng
594765a731 ide-pci-generic: kill the unused ifdef/endif/MODULE code
with module_param macro, the __setup code can be killed now:
	const __setup("all-generic-ide", ide_generic_all_on);

and the module name "generic.ko" is not descriptive to its functionality,
can be changed in Makefile, the "ide-pci-generic.ko" is better.

the ide-pci-generic.all-generic-ide parameter also documented
in Documentation/kernel-parameters.txt

Signed-off-by: Denis Cheng <crquan@gmail.com>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-02-06 02:57:49 +01:00
Linus Torvalds
21511abd0a Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
  [IA64] make pfm_get_task work with virtual pids
  [IA64] honor notify_die() returning NOTIFY_STOP
  [IA64] remove dead code: __cpu_{down,die} from !HOTPLUG_CPU
  [IA64] Appoint kvm/ia64 Maintainers
  [IA64] ia64_set_psr should use srlz.i
  [IA64] Export three symbols for module use
  [IA64] mca style cleanup
  [IA64] sn_hwperf semaphore to mutex
  [IA64] generalize attribute of fsyscall_gtod_data
  [IA64] efi.c Add /* never reached */ annotation
  [IA64] efi.c Spelling/punctuation fixes
  [IA64] Make efi.c mostly fit in 80 columns
  [IA64] aliasing-test: fix gcc warnings on non-ia64
  [IA64] Slim-down __clear_bit_unlock
  [IA64] Fix the order of atomic operations in restore_previous_kprobes on ia64
  [IA64] constify function pointer tables
  [IA64] fix userspace compile error in gcc_intrin.h
2008-02-05 10:24:52 -08:00
Linus Torvalds
39ce941ec1 Merge branch 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6
* 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6:
  [S390] dcss: Initialize workqueue before using it.
  [S390] Remove BUILD_BUG_ON() in vmem code.
  [S390] sclp_tty/sclp_vt220: Fix scheduling while atomic
  [S390] dasd: fix panic caused by alias device offline
  [S390] dasd: add ifcc handling
  [S390] latencytop s390 support.
  [S390] Implement ext2_find_next_bit.
  [S390] Cleanup & optimize bitops.
  [S390] Define GENERIC_LOCKBREAK.
  [S390] console: allow vt220 console to be the only console
  [S390] Fix couple of section mismatches.
  [S390] Fix smp_call_function_mask semantics.
  [S390] Fix linker script.
  [S390] DEBUG_PAGEALLOC support for s390.
  [S390] cio: Add shutdown callback for ccwgroup.
  [S390] cio: Update documentation.
  [S390] cio: Clean up chsc response code handling.
  [S390] cio: make sense id procedure work with partial hardware response
2008-02-05 10:11:02 -08:00
Mark Gross
d82b35186e pm qos infrastructure and interface
The following patch is a generalization of the latency.c implementation done
by Arjan last year.  It provides infrastructure for more than one parameter,
and exposes a user mode interface for processes to register pm_qos
expectations of processes.

This interface provides a kernel and user mode interface for registering
performance expectations by drivers, subsystems and user space applications on
one of the parameters.

Currently we have {cpu_dma_latency, network_latency, network_throughput} as
the initial set of pm_qos parameters.

The infrastructure exposes multiple misc device nodes one per implemented
parameter.  The set of parameters implement is defined by pm_qos_power_init()
and pm_qos_params.h.  This is done because having the available parameters
being runtime configurable or changeable from a driver was seen as too easy to
abuse.

For each parameter a list of performance requirements is maintained along with
an aggregated target value.  The aggregated target value is updated with
changes to the requirement list or elements of the list.  Typically the
aggregated target value is simply the max or min of the requirement values
held in the parameter list elements.

>From kernel mode the use of this interface is simple:

pm_qos_add_requirement(param_id, name, target_value):

  Will insert a named element in the list for that identified PM_QOS
  parameter with the target value.  Upon change to this list the new target is
  recomputed and any registered notifiers are called only if the target value
  is now different.

pm_qos_update_requirement(param_id, name, new_target_value):

  Will search the list identified by the param_id for the named list element
  and then update its target value, calling the notification tree if the
  aggregated target is changed.  with that name is already registered.

pm_qos_remove_requirement(param_id, name):

  Will search the identified list for the named element and remove it, after
  removal it will update the aggregate target and call the notification tree
  if the target was changed as a result of removing the named requirement.

>From user mode:

  Only processes can register a pm_qos requirement.  To provide for
  automatic cleanup for process the interface requires the process to register
  its parameter requirements in the following way:

  To register the default pm_qos target for the specific parameter, the
  process must open one of /dev/[cpu_dma_latency, network_latency,
  network_throughput]

  As long as the device node is held open that process has a registered
  requirement on the parameter.  The name of the requirement is
  "process_<PID>" derived from the current->pid from within the open system
  call.

  To change the requested target value the process needs to write a s32
  value to the open device node.  This translates to a
  pm_qos_update_requirement call.

  To remove the user mode request for a target value simply close the device
  node.

[akpm@linux-foundation.org: fix warnings]
[akpm@linux-foundation.org: fix build]
[akpm@linux-foundation.org: fix build again]
[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: mark gross <mgross@linux.intel.com>
Cc: "John W. Linville" <linville@tuxdriver.com>
Cc: Len Brown <lenb@kernel.org>
Cc: Jaroslav Kysela <perex@suse.cz>
Cc: Takashi Iwai <tiwai@suse.de>
Cc: Arjan van de Ven <arjan@infradead.org>
Cc: Venki Pallipadi <venkatesh.pallipadi@intel.com>
Cc: Adam Belay <abelay@novell.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-05 09:44:22 -08:00
Casey Schaufler
e114e47377 Smack: Simplified Mandatory Access Control Kernel
Smack is the Simplified Mandatory Access Control Kernel.

Smack implements mandatory access control (MAC) using labels
attached to tasks and data containers, including files, SVIPC,
and other tasks. Smack is a kernel based scheme that requires
an absolute minimum of application support and a very small
amount of configuration data.

Smack uses extended attributes and
provides a set of general mount options, borrowing technics used
elsewhere. Smack uses netlabel for CIPSO labeling. Smack provides
a pseudo-filesystem smackfs that is used for manipulation of
system Smack attributes.

The patch, patches for ls and sshd, a README, a startup script,
and x86 binaries for ls and sshd are also available on

    http://www.schaufler-ca.com

Development has been done using Fedora Core 7 in a virtual machine
environment and on an old Sony laptop.

Smack provides mandatory access controls based on the label attached
to a task and the label attached to the object it is attempting to
access. Smack labels are deliberately short (1-23 characters) text
strings. Single character labels using special characters are reserved
for system use. The only operation applied to Smack labels is equality
comparison. No wildcards or expressions, regular or otherwise, are
used. Smack labels are composed of printable characters and may not
include "/".

A file always gets the Smack label of the task that created it.

Smack defines and uses these labels:

    "*" - pronounced "star"
    "_" - pronounced "floor"
    "^" - pronounced "hat"
    "?" - pronounced "huh"

The access rules enforced by Smack are, in order:

1. Any access requested by a task labeled "*" is denied.
2. A read or execute access requested by a task labeled "^"
   is permitted.
3. A read or execute access requested on an object labeled "_"
   is permitted.
4. Any access requested on an object labeled "*" is permitted.
5. Any access requested by a task on an object with the same
   label is permitted.
6. Any access requested that is explicitly defined in the loaded
   rule set is permitted.
7. Any other access is denied.

Rules may be explicitly defined by writing subject,object,access
triples to /smack/load.

Smack rule sets can be easily defined that describe Bell&LaPadula
sensitivity, Biba integrity, and a variety of interesting
configurations. Smack rule sets can be modified on the fly to
accommodate changes in the operating environment or even the time
of day.

Some practical use cases:

Hierarchical levels. The less common of the two usual uses
for MLS systems is to define hierarchical levels, often
unclassified, confidential, secret, and so on. To set up smack
to support this, these rules could be defined:

   C        Unclass rx
   S        C       rx
   S        Unclass rx
   TS       S       rx
   TS       C       rx
   TS       Unclass rx

A TS process can read S, C, and Unclass data, but cannot write it.
An S process can read C and Unclass. Note that specifying that
TS can read S and S can read C does not imply TS can read C, it
has to be explicitly stated.

Non-hierarchical categories. This is the more common of the
usual uses for an MLS system. Since the default rule is that a
subject cannot access an object with a different label no
access rules are required to implement compartmentalization.

A case that the Bell & LaPadula policy does not allow is demonstrated
with this Smack access rule:

A case that Bell&LaPadula does not allow that Smack does:

    ESPN    ABC   r
    ABC     ESPN  r

On my portable video device I have two applications, one that
shows ABC programming and the other ESPN programming. ESPN wants
to show me sport stories that show up as news, and ABC will
only provide minimal information about a sports story if ESPN
is covering it. Each side can look at the other's info, neither
can change the other. Neither can see what FOX is up to, which
is just as well all things considered.

Another case that I especially like:

    SatData Guard   w
    Guard   Publish w

A program running with the Guard label opens a UDP socket and
accepts messages sent by a program running with a SatData label.
The Guard program inspects the message to ensure it is wholesome
and if it is sends it to a program running with the Publish label.
This program then puts the information passed in an appropriate
place. Note that the Guard program cannot write to a Publish
file system object because file system semanitic require read as
well as write.

The four cases (categories, levels, mutual read, guardbox) here
are all quite real, and problems I've been asked to solve over
the years. The first two are easy to do with traditonal MLS systems
while the last two you can't without invoking privilege, at least
for a while.

Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
Cc: Joshua Brindle <method@manicmethod.com>
Cc: Paul Moore <paul.moore@hp.com>
Cc: Stephen Smalley <sds@tycho.nsa.gov>
Cc: Chris Wright <chrisw@sous-sol.org>
Cc: James Morris <jmorris@namei.org>
Cc: "Ahmed S. Darwish" <darwish.07@gmail.com>
Cc: Andrew G. Morgan <morgan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-05 09:44:20 -08:00
Yasunori Goto
7786fa9ac5 Document lowmem_reserve_ratio
Though the lower_zone_protection was changed to lowmem_reserve_ratio, the
document has been not changed.  The lowmem_reserve_ratio seems quite hard
to estimate, but there is no guidance.  This patch is to change document
for it.

Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com>
Cc: Andrea Arcangeli <andrea@cpushare.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-05 09:44:19 -08:00
Bron Gondwana
195cf453d2 mm/page-writeback: highmem_is_dirtyable option
Add vm.highmem_is_dirtyable toggle

A 32 bit machine with HIGHMEM64 enabled running DCC has an MMAPed file of
approximately 2Gb size which contains a hash format that is written
randomly by the dbclean process.  On 2.6.16 this process took a few
minutes.  With lowmem only accounting of dirty ratios, this takes about 12
hours of 100% disk IO, all random writes.

Include a toggle in /proc/sys/vm/highmem_is_dirtyable which can be set to 1 to
add the highmem back to the total available memory count.

[akpm@linux-foundation.org: Fix the CONFIG_DETECT_SOFTLOCKUP=y build]
Signed-off-by: Bron Gondwana <brong@fastmail.fm>
Cc: Ethan Solomita <solo@google.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: WU Fengguang <wfg@mail.ustc.edu.cn>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-05 09:44:18 -08:00
eric miao
b72540c30c deprecate obsolete pca9539 driver
Use drivers/gpio/pca9539.c instead.

Signed-off-by: eric miao <eric.miao@marvell.com>
Acked-by: Ben Gardner <bgardner@wabtec.com>
Acked-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: Philipp Zabel <philipp.zabel@gmail.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-05 09:44:13 -08:00
David Brownell
7c2db759ec gpiolib: update Documentation/gpio.txt
Update Documentation/gpio.txt, primarily to include the new "gpiolib"
infrastructure.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Jean Delvare <khali@linux-fr.org>
Cc: Eric Miao <eric.miao@marvell.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: Philipp Zabel <philipp.zabel@gmail.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Ben Gardner <bgardner@wabtec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-05 09:44:13 -08:00
Olof Johansson
906da809c5 pcmcia: replace kio_addr_t with unsigned int everywhere
Remove kio_addr_t, and replace it with unsigned int.  No known architecture
needs more than 32 bits for IO addresses and ports and having a separate type
for it is just messy.

Signed-off-by: Olof Johansson <olof@lixom.net>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Matthew Wilcox <matthew@wil.cx>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-05 09:44:08 -08:00
Cornelia Huck
2fffc9355e [S390] cio: Update documentation.
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2008-02-05 16:50:53 +01:00
Randy Dunlap
cdef24c9cd [IA64] aliasing-test: fix gcc warnings on non-ia64
Eliminate all build warnings.  OK, these build warnings are from
a build on x86_64.  When I build on ia64, I don't see warnings.

Now builds cleanly on ia64 and x86_64.

Documentation/ia64/aliasing-test.c: In function 'map_mem':
Documentation/ia64/aliasing-test.c:39: warning: implicit declaration of function 'ioctl'
Documentation/ia64/aliasing-test.c: In function 'scan_rom':
Documentation/ia64/aliasing-test.c:183: warning: format '%ld' expects type 'long int', but argument 4 has type 'int'
Documentation/ia64/aliasing-test.c: At top level:
Documentation/ia64/aliasing-test.c:208: warning: function declaration isn't a prototype
Documentation/ia64/aliasing-test.c: In function 'main':
Documentation/ia64/aliasing-test.c:259: warning: control reaches end of non-void function
Documentation/ia64/aliasing-test.c: In function 'scan_rom':
Documentation/ia64/aliasing-test.c:152: warning: 'rc' may be used uninitialized in this function
Documentation/ia64/aliasing-test.c: In function 'scan_tree':
Documentation/ia64/aliasing-test.c:68: warning: 'rc' may be used uninitialized in this function

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2008-02-04 15:23:10 -08:00
Linus Torvalds
d2fc0bacd5 Merge git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86
* git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86: (78 commits)
  x86: fix RTC lockdep warning: potential hardirq recursion
  x86: cpa, micro-optimization
  x86: cpa, clean up code flow
  x86: cpa, eliminate CPA_ enum
  x86: cpa, cleanups
  x86: implement gbpages support in change_page_attr()
  x86: support gbpages in pagetable dump
  x86: add gbpages support to lookup_address
  x86: add pgtable accessor functions for gbpages
  x86: add PUD_PAGE_SIZE
  x86: add feature macros for the gbpages cpuid bit
  x86: switch direct mapping setup over to set_pte
  x86: fix page-present check in cpa_flush_range
  x86: remove cpa warning
  x86: remove now unused clear_kernel_mapping
  x86: switch pci-gart over to using set_memory_np() instead of clear_kernel_mapping()
  x86: cpa selftest, skip non present entries
  x86: CPA fix pagetable split
  x86: rename LARGE_PAGE_SIZE to PMD_PAGE_SIZE
  x86: cpa, fix lookup_address
  ...
2008-02-04 09:16:03 -08:00
Linus Torvalds
93890b71a3 Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus
* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus: (25 commits)
  virtio: balloon driver
  virtio: Use PCI revision field to indicate virtio PCI ABI version
  virtio: PCI device
  virtio_blk: implement naming for vda-vdz,vdaa-vdzz,vdaaa-vdzzz
  virtio_blk: Dont waste major numbers
  virtio_blk: provide getgeo
  virtio_net: parametrize the napi_weight for virtio receive queue.
  virtio: free transmit skbs when notified, not on next xmit.
  virtio: flush buffers on open
  virtnet: remove double ether_setup
  virtio: Allow virtio to be modular and used by modules
  virtio: Use the sg_phys convenience function.
  virtio: Put the virtio under the virtualization menu
  virtio: handle interrupts after callbacks turned off
  virtio: reset function
  virtio: populate network rings in the probe routine, not open
  virtio: Tweak virtio_net defines
  virtio: Net header needs hdr_len
  virtio: remove unused id field from struct virtio_blk_outhdr
  virtio: clarify NO_NOTIFY flag usage
  ...
2008-02-04 08:00:54 -08:00
Linus Torvalds
f5bb3a5e9d Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial
* git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial: (79 commits)
  Jesper Juhl is the new trivial patches maintainer
  Documentation: mention email-clients.txt in SubmittingPatches
  fs/binfmt_elf.c: spello fix
  do_invalidatepage() comment typo fix
  Documentation/filesystems/porting fixes
  typo fixes in net/core/net_namespace.c
  typo fix in net/rfkill/rfkill.c
  typo fixes in net/sctp/sm_statefuns.c
  lib/: Spelling fixes
  kernel/: Spelling fixes
  include/scsi/: Spelling fixes
  include/linux/: Spelling fixes
  include/asm-m68knommu/: Spelling fixes
  include/asm-frv/: Spelling fixes
  fs/: Spelling fixes
  drivers/watchdog/: Spelling fixes
  drivers/video/: Spelling fixes
  drivers/ssb/: Spelling fixes
  drivers/serial/: Spelling fixes
  drivers/scsi/: Spelling fixes
  ...
2008-02-04 07:58:52 -08:00
Rob Landley
c66315e0a7 documentation: add Documentation/x86-64/00-INDEX
Signed-off-by: Rob Landley <rob@landley.net>
Cc: Vojtech Pavlik <vojtech@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-02-04 16:48:02 +01:00
Linus Torvalds
a6cc48eeea Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-2.6:
  Driver core: Remove unneeded get_{device,driver}() calls.
  Driver core: Update some prototypes in platform.txt
  driver core: convert to use class_find_device api
  PM: Export device_pm_schedule_removal
  nozomi: finish constification
  nozomi: constify driver
  nozomi driver update
  Add ja_JP translation of stable_kernel_rules.txt
  kobject: kerneldoc comment fix
  kobject: Always build in kernel/ksysfs.o.
2008-02-04 07:42:46 -08:00
Rusty Russell
6e5aa7efb2 virtio: reset function
A reset function solves three problems:

1) It allows us to renegotiate features, eg. if we want to upgrade a
   guest driver without rebooting the guest.

2) It gives us a clean way of shutting down virtqueues: after a reset,
   we know that the buffers won't be used by the host, and

3) It helps the guest recover from messed-up drivers.

So we remove the ->shutdown hook, and the only way we now remove
feature bits is via reset.

We leave it to the driver to do the reset before it deletes queues:
the balloon driver, for example, needs to chat to the host in its
remove function.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2008-02-04 23:50:03 +11:00
Rusty Russell
426e3e0af5 virtio: clarify NO_NOTIFY flag usage
The other side (host) can set the NO_NOTIFY flag as an optimization,
to say "no need to kick me when you add things".  Make it clear that
this is advisory only; especially that we should always notify when
the ring is full.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2008-02-04 23:50:00 +11:00
Rusty Russell
a586d4f601 virtio: simplify config mechanism.
Previously we used a type/len pair within the config space, but this
seems overkill.  We now simply define a structure which represents the
layout in the config space: the config space can now only be extended
at the end.

The main driver-visible changes:
1) We indicate what fields are present with an explicit feature bit.
2) Virtqueues are explicitly numbered, and not in the config space.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2008-02-04 23:49:57 +11:00
Michael Opdenacker
097091c0a8 Documentation: mention email-clients.txt in SubmittingPatches
I was struggling to get my email-client no to mangle my patch files,
and I didn't find enough information in the SubmittingPatches file.
By looking for more information on the web, I eventually found the
email-clients.txt file, and it answered all my needs

This patch adds a reference to email-clients.txt in SubmittingPatches,
and Mozilla related information which is no longer accurate
(as opposed to the details found in email-clients.txt).

This should be helpful for people sending their first patches,
or not sending patches on a frequent basis.

Signed-off-by: Michael Opdenacker <michael@free-electrons.com>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
2008-02-03 18:06:58 +02:00
Oliver Pinter
3eb43f689c Documentation/filesystems/porting fixes
typo fix and whitespace cleanup

Signed-off-by: Oliver Pinter <oliver.pntr@gmail.com>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
2008-02-03 17:59:17 +02:00
Randy Dunlap
254012fd51 doc: use correct debugfs mountpoint
Use the normal, expected mountpoint in the relay(fs) example
for debugfs.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
2008-02-03 16:30:51 +02:00
Clemens Koller
d81919c9c2 Documentation/BUG-HUNTING whitespace cleanup
Just a little whitespace cleanup patch for Documentation/BUG-HUNTING

Signed-off-by: Clemens Koller <clemens.koller@anagramm.de>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
2008-02-03 16:26:36 +02:00
Leonardo Chiquitto
2e01e00e76 Documentation: missing proc/$PID/stat field
There's a missing field in the /proc/$PID/stat output documented in
Documentation/filesystems/proc.txt.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
2008-02-03 16:17:16 +02:00
Masatake YAMATO
48cc7ec93f correct missing a double quote in configfs.txt
Signed-off-by: Masatake YAMATO <jet@gyve.org>
Acked-by: Joel Becker <Joel.Becker@oracle.com>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
2008-02-03 16:10:08 +02:00
Adrian Bunk
0868ff7a42 move frv docs one level up
My first guess for "fujitsu" was it might be related to the
fujitsu-laptop.c driver...

Move the frv directory one level up since frv is the name of the
architecture in the Linux kernel.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
2008-02-03 15:54:28 +02:00
Adrian Bunk
03502faa25 remove Documentation/smp.txt
After seeing the filename I'd have expected something about the
implementation of SMP in the Linux kernel - not some notes on kernel
configuration and building trivialities noone would search at this
place.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Acked-by: Alan Cox <alan@redhat.com>
2008-02-03 15:50:21 +02:00
Robert P. J. Day
0cadfc0953 Documentation: Clarify when module debugging actually works.
Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
2008-02-03 15:27:38 +02:00
Robert P. J. Day
3239c49cf1 Documentation: Remove references to dead "st0x" and "tmc8xx" parms.
Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
2008-02-03 15:23:00 +02:00
Robert P. J. Day
24aaef8d7f Documentation: Update to refer to correct "rcupdate" module name
Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
2008-02-03 15:20:26 +02:00
Robert P. J. Day
2d27a96614 Documentation: "decnet=" should read "decnet.addr=".
Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
2008-02-03 15:18:45 +02:00
Uwe Kleine-König
a247b5d594 fix typo 'the same the\>'
Signed-off-by: Uwe Kleine-König <Uwe.Kleine-Koenig@digi.com>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
2008-02-03 14:59:11 +02:00
Uwe Kleine-König
a7b1a68b25 use the newc archive format as requested by initramfs
This is a documentation followup to 2e591bbc0d

Signed-off-by: Uwe Kleine-König <Uwe.Kleine-Koenig@digi.com>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
2008-02-03 14:54:41 +02:00
Denis Cheng
33b1302545 Documentation: fix type error
Signed-off-by: Denis Cheng <crquan@gmail.com>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
2008-02-03 14:50:11 +02:00
Stephen Rothwell
44414e14af Driver core: Update some prototypes in platform.txt
Just make these match the actual code.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-02 15:14:49 -08:00
Tsugikazu Shibata
996a3eb87f Add ja_JP translation of stable_kernel_rules.txt
Contents are reviewed by Japanese translation community called "JF".
Thanks a lot!

Singed-off-by: Tsugikazu Shibata <tshibata@ab.jp.nec.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-02 15:14:48 -08:00
Borislav Petkov
5ce78af4be ide-tape: move historical changelog to Documentation/ide/ChangeLog.ide-tape.1995-2002
Also, cleanup whitespace and update comments.

Bart:
- remove reference to drivers/block/ide.c
- move driver documentation to Documentation/ide/ide-tape.txt

Signed-off-by: Borislav Petkov <bbpetkov@yahoo.de>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-02-02 19:56:48 +01:00
Linus Torvalds
ae9458d6a0 Merge git://git.infradead.org/battery-2.6
* git://git.infradead.org/battery-2.6:
  apm_power: check I.intval for zero value, we use it as the divisor
  MAINTAINERS: remove kernel-discuss@handhelds.org list
  pda_power: implement polling
  pda_power: various cleanups
  apm_power: support using VOLTAGE_* properties for apm calculations
  pda_power: add suspend/resume support
  power_supply: add few more values and props
  pda_power: only register available psu
  power: fix incorrect unregistration in power_supply_create_attrs error path
  power: remove POWER_SUPPLY_PROP_CAPACITY_LEVEL
  [BATTERY] power_supply_leds: use kasprintf
  [BATTERY] Every file should include the headers containing the prototypes for its global functions.
2008-02-02 15:13:05 +11:00
Zhang Rui
203d3d4aa4 the generic thermal sysfs driver
The Generic Thermal sysfs driver for thermal management.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Thomas Sujith <sujith.thomas@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-01 23:12:19 -05:00
Linus Torvalds
687fcdf741 Merge branch 'suspend' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6
* 'suspend' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (38 commits)
  suspend: cleanup reference to swsusp_pg_dir[]
  PM: Remove obsolete /sys/devices/.../power/state docs
  Hibernation: Invoke suspend notifications after console switch
  Suspend: Invoke suspend notifications after console switch
  Suspend: Clean up suspend_64.c
  Suspend: Add config option to disable the freezer if architecture wants that
  ACPI: Print message before calling _PTS
  ACPI hibernation: Call _PTS before suspending devices
  Hibernation: Introduce begin() and end() callbacks
  ACPI suspend: Call _PTS before suspending devices
  ACPI: Separate disabling of GPEs from _PTS
  ACPI: Separate invocations of _GTS and _BFS from _PTS and _WAK
  Suspend: Introduce begin() and end() callbacks
  suspend: fix ia64 allmodconfig build
  ACPI: clear GPE earily in resume to avoid warning
  Suspend: Clean up Kconfig (V2)
  Hibernation: Clean up Kconfig (V2)
  Hibernation: Update messages
  Suspend: Use common prefix in messages
  Hibernation: Remove unnecessary variable declaration
  ...
2008-02-02 14:29:57 +11:00
Linus Torvalds
215e871aaa Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/pci-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/pci-2.6: (64 commits)
  PCI: make pci_bus a struct device
  PCI: fix codingstyle issues in include/linux/pci.h
  PCI: fix codingstyle issues in drivers/pci/pci.h
  PCI: PCIE ASPM support
  PCI: Fix fakephp deadlock
  PCI: modify SB700 SATA MSI quirk
  PCI: Run ACPI _OSC method on root bridges only
  PCI ACPI: AER driver should only register PCIe devices with _OSC
  PCI ACPI: Added a function to register _OSC with only PCIe devices.
  PCI: constify function pointer tables
  PCI: Convert drivers/pci/proc.c to use unlocked_ioctl
  pciehp: block new requests from the device before power off
  pciehp: workaround against Bad DLLP during power off
  pciehp: wait for 1000ms before LED operation after power off
  PCI: Remove pci_enable_device_bars() from documentation
  PCI: Remove pci_enable_device_bars()
  PCI: Remove users of pci_enable_device_bars()
  PCI: Add pci_enable_device_{io,mem} intefaces
  PCI: avoid save the same type of cap multiple times
  PCI: correctly initialize a structure for pcie_save_pcix_state()
  ...
2008-02-02 14:29:33 +11:00
Linus Torvalds
b6cf160c4b Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (128 commits)
  USB: fix codingstyle issues in drivers/usb/core/*.c
  USB: fix codingstyle issues in drivers/usb/core/message.c
  USB: fix codingstyle issues in drivers/usb/core/hcd-pci.c
  USB: fix codingstyle issues in drivers/usb/core/devio.c
  USB: fix codingstyle issues in drivers/usb/core/devices.c
  USB: fix codingstyle issues in drivers/usb/core/*.h
  USB: fix codingstyle issues in include/linux/usb/
  USB: fix codingstyle issues in include/linux/usb.h
  USB: mark USB drivers as being GPL only
  USB: use a real vendor and product id for root hubs
  USB: mount options: fix usbfs
  USB: Fix usb_serial_driver structure for Kobil cardreader driver.
  usb: ehci should use u16 for isochronous intervals
  usb: ehci, remove false clear-reset path
  USB: Use menuconfig objects
  usb: ohci-sm501 driver
  usb: dma bounce buffer support
  USB: last abuses of intfdata in close for usb-serial drivers
  USB: kl5kusb105 don't flush to logically disconnected devices
  USB: oti6858: cleanup
  ...
2008-02-02 14:28:57 +11:00
Henrique de Moraes Holschuh
1cee5cce97 ACPI: thinkpad-acpi: bump up version to 0.19
The major code reorganization and cleanups, and new HKEY events, plus
poll()/select() support are good reasons to checkpoint a new version...

Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-01 22:26:08 -05:00
Henrique de Moraes Holschuh
50ebec09f1 ACPI: thinkpad-acpi: add poll() support to some sysfs attributes
Implement poll()/select() support through sysfs_notify() for some key
attributes which userspace might want to poll() or select() on.

In order to let userspace know poll()/select() support is available for an
attribute, the thinkpad-acpi sysfs interface version is also bumped up.
Further changes that add poll()/select() capabilities to any pre-existing
attributes will also increment the sysfs interface version.

Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-01 22:26:08 -05:00
Henrique de Moraes Holschuh
d1edb2b5f1 ACPI: thinkpad-acpi: add X61t HKEY events
Tomas Carnecky reports that events 0x5009 and 0x500a are swivel events, and
that 0x500b/0x500c are tablet pen storage bay events.

Document these events, and avoid nasty messages when they happen.

Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-01 22:26:08 -05:00
Henrique de Moraes Holschuh
a713b4d7bc ACPI: thinkpad-acpi: wakeup on hotunplug reporting
Handle some HKEY events that the firmware uses to report the reason for a
wake up, and to also notify that the system could go back to sleep (if it
woke up just to eject something from the bay, or to undock).

The driver will report the reason of the last wake up in the sysfs
attribute "wakeup_reason": 0 for "none, unknown, or standard ACPI wake up
event", 1 for "bay ejection request" and 2 for "undock request".

The firmware will also report if the operation that triggered the wake up
has been completed, by issuing an HKEY 0x3003 or 0x4003 event.  If the
operation fails, no event is sent.  When such a hotunplug sucessfull
notification is issued, the driver sets the attribute
"wakeup_hotunplug_complete" to 1.

While the firmware does tell us whether we are waking from a suspend or
hibernation scenario, the Linux way of hibernating makes this information
not reliable, and therefore it is not reported.

The idea is that if any of these attributes are non-zero, userspace might
want to do something at the end of the "wake up from sleep" procedures,
such as offering to send the machine back into sleep as soon as it is safe
to do so.

Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-01 22:26:08 -05:00
Henrique de Moraes Holschuh
3b64b51d20 ACPI: thinkpad-acpi: cleanup hotkey_notify and HKEY log messages
Use a generic message on hotkey_notify to log unknown and unhandled events,
and cleanup hotkey_notify a little.

Also, document event 0x5010 (brightness changed notification) and do not
log it as an unknown event (even if we do not use it for anything right
now).

Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-01 22:26:08 -05:00
Henrique de Moraes Holschuh
50efd8310f ACPI: thinkpad-acpi: bump up version to 0.18
The NVRAM polling support for hot keys is reason enough to
bump up the version string.  Do it.

Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-01 22:26:06 -05:00
Henrique de Moraes Holschuh
01e88f2598 ACPI: thinkpad-acpi: add CMOS NVRAM polling for hot keys (v9)
Older ThinkPad models do not export some of the hot keys over the
event-based ACPI hot key interface.  For these models, one has to poll
the CMOS NVRAM to check the key state at a rate faster than the expected
rate at which the user might repeatedly press the same hot key.

This patch implements this functionality for many of the hotkeys in a
transparent way: hot keys will now Just Work, and the driver knows the
best approach (events or NVRAM polling) to employ, based on the
HKEY.MHKA ACPI method.

Also, the driver can turn off the polling when there are no users for
the hot keys that need such polling.

The NVRAM-based hot keys of the A3x series that have never been
implemented by later models are not supported, to avoid changes in the
keymap of the input devices that could cause headaches in the future.

There is a Kconfig option to avoid compiling the NVRAM polling code, as
it is not very small, and unlikely to be useful on any ThinkPad newer
than a T40, X31 or R52.

This feature is based on a previous effort by Richard Hughes.

Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: Richard Hughes <hughsient@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-01 22:26:06 -05:00
Dmitry Baryshkov
c7cc930f9a power_supply: add few more values and props
Add LiMn (one of the most common for small non-rechargable batteries)
battery technology and voltage_min/_max properties support.

Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
Signed-off-by: Anton Vorontsov <cbou@mail.ru>
2008-02-02 02:43:00 +03:00
Andres Salomon
8efe444038 power: remove POWER_SUPPLY_PROP_CAPACITY_LEVEL
The CAPACITY_LEVEL stuff defines various levels of charge; however, what
is the difference between them?  What differentiates between HIGH and NORMAL,
LOW and CRITICAL, etc?

As it appears that these are fairly arbitrary, we end up making such policy
decisions in the kernel (or in hardware).  This is the sort of decision that
should be made in userspace, not in the kernel.

If the hardware does not support _CAPACITY and it cannot be easily calculated,
then perhaps the driver should register a custom CAPACITY_LEVEL attribute;
however, userspace should not become accustomed to looking for such a thing,
and we should certainly not encourage drivers to provide CAPACITY_LEVEL
stubs.

The following removes support for POWER_SUPPLY_PROP_CAPACITY_LEVEL.  The
OLPC battery driver is the only driver making use of this, so it's
removed from there as well.

Signed-off-by: Andres Salomon <dilinger@debian.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2008-02-02 02:42:59 +03:00
David Brownell
ffffa4b502 PM: Remove obsolete /sys/devices/.../power/state docs
The /sys/devices/.../power/state files have been gone for a while
now, but I just noticed some documentation that still refers to
them.  (Fortunately described as DEPRECATED and WILL REMOVE).

Time to remove that obsolete documentation too ...

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-01 18:30:59 -05:00
Rafael J. Wysocki
60417f5976 ACPI suspend: Call _PTS before suspending devices
The ACPI 1.0 specification wants us to put devices into low power
states after executing the _PTS global control method, while ACPI
2.0 and later want us to do that in the reverse order.  The current
suspend code follows ACPI 2.0 in that respect which causes some
ACPI 1.0x systems to hang during suspend (ref.
http://bugzilla.kernel.org/show_bug.cgi?id=9528).

Make the suspend code execute _PTS before putting devices into low
power states (ie. in accordance with ACPI 1.0x) and provide a command
line option to override the default if need be.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-01 18:30:58 -05:00
Rafael J. Wysocki
ce2b7147bb PM: Suspend/hibernation debug documentation update (rev. 2)
Update the suspend/hibernation debugging and testing documentation to describe
the newly introduced testing facilities.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-01 18:30:54 -05:00
Alan Stern
c3e94d899c Hibernation: Add PM_RESTORE_PREPARE and PM_POST_RESTORE notifiers (rev. 2)
Add PM_RESTORE_PREPARE and PM_POST_RESTORE notifiers to the PM core, to be used
in analogy with the existing PM_HIBERNATION_PREPARE and PM_POST_HIBERNATION
notifiers.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: "Rafael J. Wysocki" <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-01 18:30:53 -05:00
Rafael J. Wysocki
3010f8caa4 Hibernation: Introduce exportable suspend ioctls header (rev. 2)
Move the definitions of hibernation ioctls to a separate header file in
include/linux, which can be exported to the user space.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-01 18:30:53 -05:00
Rafael J. Wysocki
cc5d207c85 Hibernation: Correct definitions of some ioctls (rev. 2)
Three ioctl numbers belonging to the hibernation userland interface,
SNAPSHOT_ATOMIC_SNAPSHOT, SNAPSHOT_AVAIL_SWAP, SNAPSHOT_GET_SWAP_PAGE,
are defined in a wrong way (eg. not portable).  Provide new ioctl numbers for
these ioctls and mark the existing ones as deprecated.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-01 18:30:53 -05:00
Rafael J. Wysocki
96f737490c Hibernation: Mark SNAPSHOT_SET_SWAP_FILE ioctl as deprecated (rev. 2)
Mark the SNAPSHOT_SET_SWAP_FILE ioctl belonging to the hibernation userland
interface as deprecated.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-01 18:30:53 -05:00
Rafael J. Wysocki
eb57c1cf05 Hibernation: Rework platform support ioctls (rev. 2)
Modify the hibernation userland interface by adding two new ioctls to it,
SNAPSHOT_PLATFORM_SUPPORT and SNAPSHOT_POWER_OFF, that can be used,
respectively, to switch the hibernation platform support on/off and to make the
kernel transition the system to the hibernation state (eg. ACPI S4) using the
platform (eg. ACPI) driver.

These ioctls are intended to replace the misdesigned SNAPSHOT_PMOPS ioctl,
which from now is regarded as obsolete and will be removed in the future.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-01 18:30:53 -05:00
Rafael J. Wysocki
af508b34d2 Hibernation: Introduce SNAPSHOT_GET_IMAGE_SIZE ioctl
Add a new ioctl, SNAPSHOT_GET_IMAGE_SIZE, returning the size of the (just
created) hibernation image, to the hibernation userland interface.

This ioctl is necessary so that the userland utilities using the interface need
not access the hibernation image header, owned by the kernel, in order to obtain
the size of the image.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-01 18:30:52 -05:00
Grant Grundler
d48b5d3a50 PCI: Remove pci_enable_device_bars() from documentation
Patch below removes pci_enable_device_bars() from Documentation/pci.txt .

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 15:04:28 -08:00
Linus Torvalds
f3191248bf Merge git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6: (100 commits)
  ide: move hwif_register() call out of ide_probe_port()
  ide: factor out code for tuning devices from ide_probe_port()
  ide: move handling of I/O resources out of ide_probe_port()
  ide: make probe_hwif() return an error value
  ide: use ide_remove_port_from_hwgroup in init_irq()
  ide: prepare init_irq() for using ide_remove_port_from_hwgroup()
  ide: factor out code removing port from hwgroup from ide_unregister()
  ide: I/O resources are released too early in ide_unregister()
  ide: cleanup ide_system_bus_speed()
  ide: remove needless zeroing of hwgroup fields from init_irq()
  ide: remove unused ide_hwgroup_t fields
  ide_platform: remove struct hwif_prop
  ide: remove hwif->present manipulations from hwif_init()
  ide: move wait_hwif_ready() documentation in the right place
  ide: fix handling of busy I/O resources in probe_hwif()
  <linux/hdsmart.h> is not used by kernel code
  ide: don't include <linux/hdsmart.h>
  ide-floppy: cleanup header
  ide: update/add my Copyrights
  ide: delete filenames/versions from comments
  ...
2008-02-02 09:58:02 +11:00
Greg Kroah-Hartman
782e70c6fc USB: mark USB drivers as being GPL only
Over two years ago, the Linux USB developers stated that they believed
there was no way to create a USB kernel driver that was not under the
GPL.  This patch moves the USB apis to enforce that decision.

There are no known closed source USB drivers in the wild, so this patch
should cause no problems.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 14:35:07 -08:00
Sarah Sharp
979e524a9c USB: Add documentation for USB suspend statistics.
This documents two newly created files:
/sys/bus/usb/device/.../power/connected_duration
/sys/bus/usb/device/.../power/active_duration

Documentation was placed in Documentation/ABI/testing, since that's where the
documentation is for the other USB sysfs power files.

Signed-off-by: Sarah Sharp <sarah.a.sharp@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 14:35:00 -08:00
Craig W. Nadler
25a010c8c1 USB: add Printer Gadget Driver
G_PRINTER: Adds a USB printer gadget driver for use in printer firmware.

This adds a USB printer gadget driver for use in printer firmware.
The printer gadget channels data between the USB host and a userspace
program driving the print engine. The user space program reads and
writes the device file /dev/g_printer to receive or send printer data.
It can use ioctl calls to the device file to get or set printer status.

Signed-off-by: Craig W. Nadler <craig@nadler.us>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 14:34:49 -08:00
Alain Degreffe
60a8fc0171 USB: add iuu_phoenix driver
Signed-off-by: Alain Degreffe <eczema@ecze.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 14:34:47 -08:00
Borislav Petkov
d3f208488f ide-floppy: cleanup header
Move ide-floppy historical changelog to
Documentation/ide/ChangeLog.ide-floppy.1996-2002

Signed-off-by: Borislav Petkov <bbpetkov@yahoo.de>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-02-01 23:09:33 +01:00
Bartlomiej Zolnierkiewicz
03553353e9 ide-cd: move historical changelog to Documentation/ide/ChangeLog.ide-cd.1994-2004
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-02-01 23:09:18 +01:00
Eric Paris
de6bbd1d30 [AUDIT] break large execve argument logging into smaller messages
execve arguments can be quite large.  There is no limit on the number of
arguments and a 4G limit on the size of an argument.

this patch prints those aruguments in bite sized pieces.  a userspace size
limitation of 8k was discovered so this keeps messages around 7.5k

single arguments larger than 7.5k in length are split into multiple records
and can be identified as aX[Y]=

Signed-off-by: Eric Paris <eparis@redhat.com>
2008-02-01 14:23:55 -05:00
Randy Dunlap
31fa5d2868 docbook: rapidio: fix fatal filename error
Fix docbook fatal error (files were renamed):
docproc: linux-2.6.24-git9/arch/ppc/kernel/rio.c: No such file or directory

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-01 21:11:40 +11:00
Masahide NAKAMURA
9472c9ef64 [XFRM]: Fix statistics.
o Outbound sequence number overflow error status
  is counted as XfrmOutStateSeqError.
o Additionaly, it changes inbound sequence number replay
  error name from XfrmInSeqOutOfWindow to XfrmInStateSeqError
  to apply name scheme above.
o Inbound IPv4 UDP encapsuling type mismatch error is wrongly
  mapped to XfrmInStateInvalid then this patch fiex the error
  to XfrmInStateMismatch.

Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-31 19:28:30 -08:00
Eric Dumazet
29e75252da [IPV4] route cache: Introduce rt_genid for smooth cache invalidation
Current ip route cache implementation is not suited to large caches.

We can consume a lot of CPU when cache must be invalidated, since we
currently need to evict all cache entries, and this eviction is
sometimes asynchronous. min_delay & max_delay can somewhat control this
asynchronism behavior, but whole thing is a kludge, regularly triggering
infamous soft lockup messages. When entries are still in use, this also
consumes a lot of ram, filling dst_garbage.list.

A better scheme is to use a generation identifier on each entry,
so that cache invalidation can be performed by changing the table
identifier, without having to scan all entries.
No more delayed flushing, no more stalling when secret_interval expires.

Invalidated entries will then be freed at GC time (controled by
ip_rt_gc_timeout or stress), or when an invalidated entry is found
in a chain when an insert is done.
Thus we keep a normal equilibrium.

This patch :
- renames rt_hash_rnd to rt_genid (and makes it an atomic_t)
- Adds a new rt_genid field to 'struct rtable' (filling a hole on 64bit)
- Checks entry->rt_genid at appropriate places :
2008-01-31 19:28:27 -08:00
Douglas Kosovic
0aaa22e554 [ALSA] hda-codec - Add Dell T3400 support
Added the support for Dell T3400 with AD1984 codec chip.
ALSA bug#3699:
	https://bugtrack.alsa-project.org/alsa-bug/view.php?id=3699

Signed-off-by: Douglas Kosovic <douglask@itee.uq.edu.au>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-01-31 17:30:22 +01:00
Takashi Iwai
461e2c78b1 [ALSA] hda-codec - Add Conexant 5051 codec support
Added the support for Conexant 5051 audio codec.
Right now there are two preset models, laptop and hp.
The whole patch is based on the information from the base patch by
Linuxant.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-01-31 17:30:16 +01:00
Clemens Ladisch
c626026dd7 [ALSA] add TempoTec HiFier driver
Add a driver for the MediaTek/TempoTec HiFier Fantasia sound card.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-01-31 17:30:15 +01:00