GitHub/mt8127/android_kernel_alcatel_ttab.git
15 years agoMerge branch 'suspend' into release
Len Brown [Fri, 9 Jan 2009 08:38:15 +0000 (03:38 -0500)]
Merge branch 'suspend' into release

15 years agoMerge branch 'misc' into release
Len Brown [Fri, 9 Jan 2009 08:37:48 +0000 (03:37 -0500)]
Merge branch 'misc' into release

Conflicts:
include/acpi/acpixf.h

Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoMerge branch 'fujitsu-laptop' into release
Len Brown [Fri, 9 Jan 2009 08:37:26 +0000 (03:37 -0500)]
Merge branch 'fujitsu-laptop' into release

15 years agoMerge branch 'fluff' into release
Len Brown [Fri, 9 Jan 2009 08:37:20 +0000 (03:37 -0500)]
Merge branch 'fluff' into release

15 years agoMerge branches 'release', 'bugzilla-11880', 'bugzilla-12037' and 'bugzilla-12257...
Len Brown [Fri, 9 Jan 2009 08:37:11 +0000 (03:37 -0500)]
Merge branches 'release', 'bugzilla-11880', 'bugzilla-12037' and 'bugzilla-12257' into release

15 years agoMerge branch 'battery' into release
Len Brown [Fri, 9 Jan 2009 08:36:59 +0000 (03:36 -0500)]
Merge branch 'battery' into release

15 years agoMerge branch 'asus-eeepc' into release
Len Brown [Fri, 9 Jan 2009 08:36:53 +0000 (03:36 -0500)]
Merge branch 'asus-eeepc' into release

15 years agoMerge branch 'alarm' into release
Len Brown [Fri, 9 Jan 2009 08:36:32 +0000 (03:36 -0500)]
Merge branch 'alarm' into release

15 years agoACPICA: hide private headers
Len Brown [Fri, 9 Jan 2009 05:30:03 +0000 (00:30 -0500)]
ACPICA: hide private headers

Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoACPICA: create acpica/ directory
Len Brown [Fri, 9 Jan 2009 05:13:17 +0000 (00:13 -0500)]
ACPICA: create acpica/ directory

also, delete sleep/ and delete ACPI_CFLAGS from Makefile

Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoACPI: fix build warning
Len Brown [Fri, 9 Jan 2009 07:10:16 +0000 (02:10 -0500)]
ACPI: fix build warning

when CONFIG_RTC_DRV_CMOS=m
and thus !defined(HAVE_ACPI_LEGACY_ALARM)

drivers/acpi/proc.c:85: warning: ‘cmos_bcd_read’ declared ‘static’ but
never defined

Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoACPI : Use RSDT instead of XSDT by adding boot option of "acpi=rsdt"
Zhao Yakui [Wed, 17 Dec 2008 08:55:18 +0000 (16:55 +0800)]
ACPI : Use RSDT instead of XSDT by adding boot option of "acpi=rsdt"

On some boxes there exist both RSDT and XSDT table. But unfortunately
sometimes there exists the following error when XSDT table is used:
   a. 32/64X address mismatch
   b. The 32/64X FACS address mismatch

   In such case the boot option of "acpi=rsdt" is provided so that
RSDT is tried instead of XSDT table when the system can't work well.

http://bugzilla.kernel.org/show_bug.cgi?id=8246

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
cc:Thomas Renninger <trenn@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoACPI: Avoid array address overflow when _CST MWAIT hint bits are set
Zhao Yakui [Sun, 4 Jan 2009 04:04:21 +0000 (12:04 +0800)]
ACPI: Avoid array address overflow when _CST MWAIT hint bits are set

The Cx Register address obtained from the _CST object is used as the MWAIT
hints if the register type is FFixedHW. And it is used to check whether
the Cx type is supported or not.

On some boxes the following Cx state package is obtained from _CST object:
    >{
                ResourceTemplate ()
                {
                    Register (FFixedHW,
                        0x01,               // Bit Width
                        0x02,               // Bit Offset
                        0x0000000000889759, // Address
                        0x03,               // Access Size
                        )
                },

                0x03,
                0xF5,
                0x015E }

   In such case we should use the bit[7:4] of Cx address to check whether
the Cx type is supported or not.

mask the MWAIT hint to avoid array address overflow

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Acked-by:Venki Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agofujitsu-laptop: Simplify SBLL/SBL2 backlight handling
Tony Vroon [Wed, 7 Jan 2009 10:11:24 +0000 (10:11 +0000)]
fujitsu-laptop: Simplify SBLL/SBL2 backlight handling

GBLS and GBLL only differ in the clearing of the GHKS flag, so there is no need
to have two backlight level readouts. Also, per Peter Gruber, the need for the
BLNF check has disappeared.
As a result, cleanups can be made in the code. This has been tested on the both
the S6410 and the S6420 platforms and causes no functionality regressions, on
the console without X or within X. One module parameter to disable the hotkeys
is dropped, as we only ever took one codepath anyway.

Signed-off-by: Tony Vroon <tony@linx.net>
Tested-by: Peter Gruber <nokos@gmx.net>
Tested-By: Stephen Gildea <stepheng+linux@gildea.com>
Acked-by: Jonathan Woithe <jwoithe@physics.adelaide.edu.au>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agofujitsu-laptop: Add BL power, LED control and radio state information
Tony Vroon [Wed, 31 Dec 2008 18:19:59 +0000 (18:19 +0000)]
fujitsu-laptop: Add BL power, LED control and radio state information

The FUNC interface in the Fujitsu-Siemens DSDT was unused until now. It exposes
state information that is now reported in additional platform files (whether the
radios are killed by the hardware switch or operational, whether the machine is
docked and whether the lid is open).
Support for the backlight class is now extended with the ability to power the
backlight on & off. Optional support for the LED class allows the keyboard
headlamps found on the U810 netbook and the Fujitsu logo illumination on the
P8010 notebook to be turned on & off.

This was fed through checkpatch.pl and tested on the S6420, P8010 & U810 platforms.

Signed-off-by: Stephen Gildea <stepheng+linux@gildea.com>
Tested-by: Stephen Gildea <stepheng+linux@gildea.com>
Tested-by: Julian Brown <jules@panic.cs-bristol.org.uk>
Signed-off-by: Tony Vroon <tony@linx.net>
Tested-by: Peter Gruber <nokos@gmx.net>
Acked-by: Jonathan Woithe <jwoithe@physics.adelaide.edu.au>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoACPICA: delete utcache.c
Len Brown [Fri, 9 Jan 2009 04:46:09 +0000 (23:46 -0500)]
ACPICA: delete utcache.c

ACPI_USE_LOCAL_CACHE will never be defined by the Linux kernel,
and thus utcache.c will always be dead code.

Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoACPICA: delete acdisasm.h
Len Brown [Fri, 9 Jan 2009 04:44:17 +0000 (23:44 -0500)]
ACPICA: delete acdisasm.h

it is referenced only #ifdef ACPI_DISASSEMBLER,
which is never set by the kernel.

Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoACPICA: Update version to 20081204.
robert.moore@intel.com [Wed, 31 Dec 2008 05:15:01 +0000 (13:15 +0800)]
ACPICA: Update version to 20081204.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoACPICA: FADT: Update error msgs for consistency
Bob Moore [Tue, 16 Dec 2008 10:22:01 +0000 (18:22 +0800)]
ACPICA: FADT: Update error msgs for consistency

Update all messages so they look consistent.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoACPICA: FADT: set acpi_gbl_use_default_register_widths to TRUE by default
robert.moore@intel.com [Wed, 31 Dec 2008 05:07:26 +0000 (13:07 +0800)]
ACPICA: FADT: set acpi_gbl_use_default_register_widths to TRUE by default

This returns the FADT support to the original behavior, which is
to use default register widths. However, now check each register
definition and report a warning if it differs from the default.
This is a first step to moving away from the default widths,
rather than outright believing the widths in all FADTs for all
machines, considered rather dangerous until more data is obtained.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoACPICA: FADT parsing changes and fixes
Bob Moore [Tue, 30 Dec 2008 19:06:06 +0000 (03:06 +0800)]
ACPICA: FADT parsing changes and fixes

1) Update the register lengths for the PM1 event blocks. The
length must be divided by two in order to use these to access
the status registers.
2) Add run-time option to use default register lengths to override a
faulty FADT.
3) Add warning message if any of the X64 address structures contain a length
that does not match the legacy length earlier in the FADT.
4) Move all FADT warning messages into the ValidateFadt function.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoACPICA: Add ACPI_MUTEX_TYPE configuration option
Bob Moore [Tue, 30 Dec 2008 19:03:29 +0000 (03:03 +0800)]
ACPICA: Add ACPI_MUTEX_TYPE configuration option

Used to specify whether the OSL mutex interfaces should be used,
or binary semaphores instead.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoACPICA: Fixes for various ACPI data tables
Bob Moore [Tue, 16 Dec 2008 08:04:29 +0000 (16:04 +0800)]
ACPICA: Fixes for various ACPI data tables

Eliminate extraneous "zero length subtable" messages.
Fix subtable output for ERST, MCFG, EINJ tables.
Implement all subtables for HEST.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoACPICA: Restructure includes into public/private
Bob Moore [Tue, 30 Dec 2008 19:01:23 +0000 (03:01 +0800)]
ACPICA: Restructure includes into public/private

acpi.h now includes only the "public" acpica headers. All other
acpica headers are "private" and should not be included by acpica
users. One new file, accommon.h is used to include the commonly
used private headers for acpica code generation. Future plans
are to move all private headers to a new subdirectory.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoACPI: remove private acpica headers from driver files
Lin Ming [Tue, 16 Dec 2008 08:28:17 +0000 (16:28 +0800)]
ACPI: remove private acpica headers from driver files

External driver files should not include any private acpica headers.

Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoACPI: reboot.c: use new acpi_reset interface
Lin Ming [Tue, 16 Dec 2008 08:40:31 +0000 (16:40 +0800)]
ACPI: reboot.c: use new acpi_reset interface

Use new acpi_reset interface to write to reset register

Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoACPICA: New: acpi_reset interface - write to reset register
Bob Moore [Tue, 30 Dec 2008 03:11:57 +0000 (11:11 +0800)]
ACPICA: New: acpi_reset interface - write to reset register

Uses the FADT-defined reset register and reset value. Checks the
FADT flags for the reset register supported bit. Supports reset
register in memory or I/O space, but not in PCI config space
since the host has the information to do it.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoACPICA: Move all public H/W interfaces to new hwxface
Bob Moore [Tue, 30 Dec 2008 03:04:48 +0000 (11:04 +0800)]
ACPICA: Move all public H/W interfaces to new hwxface

Move public interfaces from hwregs.c to new file, hwxface.c -
similar to the structure of the other ACPICA components.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoACPICA: New: acpi_read and acpi_write public interfaces
Bob Moore [Tue, 30 Dec 2008 18:55:32 +0000 (02:55 +0800)]
ACPICA: New: acpi_read and acpi_write public interfaces

Changed the acpi_hw_low_level_read and acpi_hw_low_level_write functions to
the public acpi_read and acpi_write to allow direct access to
ACPI registers.  Removed the "width" parameter since the width
can be obtained from the input GAS structure. Updated the FADT
initialization to setup the GAS structures with the proper
widths. Some widths are still hardcoded because many FADTs have
incorrect register lengths.

Signed-off-by: Bob Moore <robert.moore@intel.com
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoACPI: io_common.c: call acpi_get_table to avoid using ACPI_SIG_DSDT
Lin Ming [Tue, 16 Dec 2008 09:08:57 +0000 (17:08 +0800)]
ACPI: io_common.c: call acpi_get_table to avoid using ACPI_SIG_DSDT

ACPI_SIG_DSDT is acpica internal used only.
call acpi_get_table to avoid using ACPI_SIG_DSDT.

Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoACPI: io_acpi_init.c: call acpi_get_name to get node fullname
Lin Ming [Tue, 16 Dec 2008 09:07:01 +0000 (17:07 +0800)]
ACPI: io_acpi_init.c: call acpi_get_name to get node fullname

acpi_ns_print_node_pathname is internal used only
use acpi_get_name instead to get node fullname

Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoACPI: panasonic-laptop.c: remove ACPI_FUNCTION_TRACE
Lin Ming [Tue, 16 Dec 2008 09:04:24 +0000 (17:04 +0800)]
ACPI: panasonic-laptop.c: remove ACPI_FUNCTION_TRACE

ACPI_FUNCTION_TRACE is an internal acpica function.
remove ACPI_FUNCTION_TRACE from driver file

Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoACPI: power.c: call acpi_get_name to get node name
Lin Ming [Tue, 16 Dec 2008 09:02:22 +0000 (17:02 +0800)]
ACPI: power.c: call acpi_get_name to get node name

acpi_ut_get_node_name is an internal acpica function.
use acpi_get_name to get node ascii name

Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoACPI: sony-laptop.c: call acpi_get_object_info to get node info
Lin Ming [Tue, 16 Dec 2008 08:59:35 +0000 (16:59 +0800)]
ACPI: sony-laptop.c: call acpi_get_object_info to get node info

Avoid using internal acpica structures acpi_namespace_node and acpi_operand_object
Call acpi_get_object_info to get node ascii name and method arg count

Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoACPI: main.c: use new public GPE group enable/disable interfaces
Lin Ming [Tue, 16 Dec 2008 08:57:46 +0000 (16:57 +0800)]
ACPI: main.c: use new public GPE group enable/disable interfaces

Avoid using internal functions: acpi_hw_disable_all_gpes and acpi_hw_enable_all_runtime_gpes
Use new public GPE group enable/disable interfaces: acpi_disable_all_gpes and acpi_enable_all_runtime_gpes

Also avoid using internal symbol ACPI_TABLE_INDEX_FACS, call acpi_get_table.

Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoACPICA: New: Public GPE group enable/disable interfaces
Bob Moore [Tue, 30 Dec 2008 01:55:48 +0000 (09:55 +0800)]
ACPICA: New: Public GPE group enable/disable interfaces

Added acpi_disable_all_gpes and acpi_enable_all_runtime_gpes for
public use.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoACPICA: New: acpi_get_gpe_device interface
Bob Moore [Tue, 30 Dec 2008 01:45:17 +0000 (09:45 +0800)]
ACPICA: New: acpi_get_gpe_device interface

This function maps an input GPE index to a GPE block device. Also
Added acpi_current_gpe_count to track the current number of GPEs
that are being managed by the ACPICA core (both FADT-based GPEs
and the GPEs contained in GPE block devices.)

Modify drivers/acpi/system.c to use these 2 new interfaces

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoACPI: wakeup.c: remove ACPI_FUNCTION_TRACE
Lin Ming [Tue, 16 Dec 2008 08:51:19 +0000 (16:51 +0800)]
ACPI: wakeup.c: remove ACPI_FUNCTION_TRACE

ACPI_FUNCTION_TRACE is an internal acpica function.
remove ACPI_FUNCTION_TRACE

Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoACPI: proc.c: remove ACPI_FUNCTION_TRACE
Lin Ming [Tue, 16 Dec 2008 08:49:26 +0000 (16:49 +0800)]
ACPI: proc.c: remove ACPI_FUNCTION_TRACE

ACPI_FUNCTION_TRACE and return_VALUE are internal acpica functions.
remove ACPI_FUNCTION_TRACE
replace return_VALUE with return

Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoACPI: ec.c: call acpi_get_name to get node name
Lin Ming [Tue, 16 Dec 2008 08:46:12 +0000 (16:46 +0800)]
ACPI: ec.c: call acpi_get_name to get node name

acpi_namespace_node is internal struct, it should not be used outside of ACPICA
call acpi_get_name to get node ascii name

Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoACPI: osl.c: replace return_ACPI_STATUS with return
Lin Ming [Wed, 31 Dec 2008 01:23:57 +0000 (09:23 +0800)]
ACPI: osl.c: replace return_ACPI_STATUS with return

return_ACPI_STATUS is an internal acpica function, replace it with return.
acpi_gbl_permanent_mmap moved from acglobal.h to acpixf.h for external use

Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agovideo: always update the brightness when poking "brightness"
Zhang Rui [Wed, 31 Dec 2008 02:58:48 +0000 (10:58 +0800)]
video: always update the brightness when poking "brightness"

always update props.brightness no matter the backlight is changed
via procfs, hotkeys or sysfs.

Sighed-off-by: Zhang Rui <rui.zhang@intel.com>
Acked-by: Matthew Garrett <mjg59@srcf.ucam.org>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoACPI: ec.c, pci_link.c, video_detec.c: static
Roel Kluin [Tue, 9 Dec 2008 19:45:30 +0000 (20:45 +0100)]
ACPI: ec.c, pci_link.c, video_detec.c: static

Sparse asked whether these could be static.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoACPI: Do not modify SCI_EN directly
Rafael J. Wysocki [Mon, 29 Dec 2008 18:19:07 +0000 (19:19 +0100)]
ACPI: Do not modify SCI_EN directly

According to the ACPI specification the SCI_EN flag is controlled by
the hardware, which sets this flag to inform the kernel that ACPI is
enabled.  For this reason, we shouldn't try to modify SCI_EN
directly.  Also, we don't need to do it in irqrouter_resume(), since
lower-level resume code takes care of enabling ACPI in case it hasn't
been enabled by the BIOS before passing control to the kernel (which
by the way is against the ACPI specification).

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agocpuidle: Add decaying history logic to menu idle predictor
Pallipadi, Venkatesh [Tue, 30 Dec 2008 22:46:02 +0000 (14:46 -0800)]
cpuidle: Add decaying history logic to menu idle predictor

Add decaying history of predicted idle time, instead of using the last early
wakeup. This logic helps menu governor do better job of predicting idle time.

With this change, we also measured noticable (~8%) power savings on
a DP server system with CPUs supporting deep C states, when system
was lightly loaded. There was no change to power or perf on other load
conditions.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoACPICA: Update version to 20081031
Bob Moore [Thu, 27 Nov 2008 07:20:20 +0000 (15:20 +0800)]
ACPICA: Update version to 20081031

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoACPICA: Enhance implicit return mechanism
Lin Ming [Thu, 13 Nov 2008 03:25:22 +0000 (11:25 +0800)]
ACPICA: Enhance implicit return mechanism

For Windows compatibility, return an implicit integer of value
zero for methods that have no executable code. A default implicit
value of zero is provided for methods. Lin Ming.

Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoACPICA: Consolidate method arg count validation code
Bob Moore [Thu, 13 Nov 2008 03:19:24 +0000 (11:19 +0800)]
ACPICA: Consolidate method arg count validation code

Merge the code that validates control method argument counts into
the predefined validation module. Eliminates possible multiple
warnings for incorrect counts.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoACPICA: Add Buffer->String conversion for predefined methods
Bob Moore [Fri, 14 Nov 2008 00:44:39 +0000 (08:44 +0800)]
ACPICA: Add Buffer->String conversion for predefined methods

For predefined methods (such as _BIF), add automatic conversion for
objects that are required to be a String, but a Buffer was found
instead. This can happen when reading string battery data from
an operation region, because it used to be difficult to convert
the data from buffer to string from within the ASL. Linux BZ 11822.

http://bugzilla.kernel.org/show_bug.cgi?id=11822

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoACPICA: Allow multiple backslash prefix in namepaths
Lin Ming [Thu, 13 Nov 2008 02:54:39 +0000 (10:54 +0800)]
ACPICA: Allow multiple backslash prefix in namepaths

In a fully qualified namepath, allow multiple backslash prefixes.
This can happen because of the use of a double-backslash in strings
(since backslash is the escape character) causing confusion.
ACPICA BZ 739 Lin Ming.

http://www.acpica.org/bugzilla/show_bug.cgi?id=739

Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoACPICA: Fix to allow aliases within ASL namepaths
Bob Moore [Thu, 13 Nov 2008 02:51:49 +0000 (10:51 +0800)]
ACPICA: Fix to allow aliases within ASL namepaths

Fixes a problem where the use of an alias within a namepath
would result in a not found error or cause the compiler to fault.
Also now allows forward references from the Alias operator itself.
ACPICA BZ 738.

http://www.acpica.org/bugzilla/show_bug.cgi?id=738

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoACPICA: Remove references to obsolete ACPI_DUMP_APP
Bob Moore [Thu, 13 Nov 2008 02:48:00 +0000 (10:48 +0800)]
ACPICA: Remove references to obsolete ACPI_DUMP_APP

This define is no longer used.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoACPICA: Add support to externally execute _OSI method
Bob Moore [Thu, 13 Nov 2008 01:45:35 +0000 (09:45 +0800)]
ACPICA: Add support to externally execute _OSI method

The current implemenation of _OSI within ACPICA only allows other
control methods to execute _OSI. This change allows the host
OS to execute _OSI via the AcpiEvaluateObject interface. _OSI
is a special method -- it does not exist in the AML code, it is
implemented within ACPICA.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoACPICA: Reformat comments, no functional changes
Bob Moore [Wed, 12 Nov 2008 08:01:56 +0000 (16:01 +0800)]
ACPICA: Reformat comments, no functional changes

Reformat comments to use fewer lines.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoACPICA: Add global pointer for FACS table to simplify FACS access
Bob Moore [Wed, 12 Nov 2008 07:34:52 +0000 (15:34 +0800)]
ACPICA: Add global pointer for FACS table to simplify FACS access

Use a global pointer instead of using AcpiGetTableByIndex for
each FACS access. This simplifies the code for the Global Lock
and the Firmware Waking Vector(s).

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoACPICA: Emit warning if two FACS or DSDT tables found in the FADT
Bob Moore [Wed, 12 Nov 2008 07:23:20 +0000 (15:23 +0800)]
ACPICA: Emit warning if two FACS or DSDT tables found in the FADT

Checks if there are two valid but different addresses for the
FACS and DSDT within the FADT (mismatch between the 32-bit and
64-bit fields.)

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoACPICA: Fix namestring for the SystemCMOS address space
Bob Moore [Wed, 12 Nov 2008 07:17:41 +0000 (15:17 +0800)]
ACPICA: Fix namestring for the SystemCMOS address space

This fixes the name of this address space, changing it from the
incorrect CMOS to the correct SystemCMOS.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoACPICA: Update debug output for IndexField I/O
Bob Moore [Wed, 12 Nov 2008 07:16:49 +0000 (15:16 +0800)]
ACPICA: Update debug output for IndexField I/O

Split the "data register I/O" with more informative read and
write messages.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoACPICA: Add a mechanism to escape infinite AML While() loops
Bob Moore [Wed, 12 Nov 2008 07:15:29 +0000 (15:15 +0800)]
ACPICA: Add a mechanism to escape infinite AML While() loops

Add a loop counter to force exit from AML While loops if the
count becomes too large. This can occur in poorly written AML
when the hardware does not respond within a while loop and the
loop does not implement a timeout. The maximum loop count is
configurable. A new exception code is returned when a loop is
broken, AE_AML_INFINITE_LOOP.  Bob Moore, Alexey Starikovskiy.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoACPICA: Optimize execution of AML While loops
Bob Moore [Wed, 12 Nov 2008 07:02:00 +0000 (15:02 +0800)]
ACPICA: Optimize execution of AML While loops

Previously, a control state object was allocated and freed for
each execution of the loop. The optimization is to simply reuse
the control state for each iteration. This speeds up the raw loop
execution time by about 5%.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoACPICA: Fix possible memory leak on error in parser
Lin Ming [Wed, 12 Nov 2008 06:56:59 +0000 (14:56 +0800)]
ACPICA: Fix possible memory leak on error in parser

Fixes a possible memory leak if an allocation failure happens in
the parse loop. Must terminate an executing control method.
Lin Ming, Bob Moore. ACPICA BZ 489.

http://www.acpica.org/bugzilla/show_bug.cgi?id=489

Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoACPICA: Update FACS waking vector interfaces
Bob Moore [Wed, 12 Nov 2008 06:54:05 +0000 (14:54 +0800)]
ACPICA: Update FACS waking vector interfaces

Split AcpiSetFirmwareWakingVector into two: one for the 32-bit
vector, another for the 64-bit vector. This is required because the
host OS must setup the wake much differently for each vector (real
vs. protected mode, etc.) and the interface should not be deciding
which vector to use.  Also eliminate the GetFirmwareWakingVector
interface, as it served no purpose (only the firmware reads the
vector, OS only writes the vector.)  ACPICA BZ 731.

http://www.acpica.org/bugzilla/show_bug.cgi?id=731

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoACPICA: Fix several warnings under gcc 4 compiler
Bob Moore [Wed, 12 Nov 2008 06:16:21 +0000 (14:16 +0800)]
ACPICA: Fix several warnings under gcc 4 compiler

New compiler is pickier than older versions.
Joerg Sonnenberger. From ACPICA BZ 732.

http://www.acpica.org/bugzilla/show_bug.cgi?id=732

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoLinux 2.6.28
Linus Torvalds [Wed, 24 Dec 2008 23:26:37 +0000 (15:26 -0800)]
Linux 2.6.28

Happy holidays..

15 years agoMerge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab...
Linus Torvalds [Wed, 24 Dec 2008 18:24:52 +0000 (10:24 -0800)]
Merge branch 'for_linus' of git://git./linux/kernel/git/mchehab/linux-2.6

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6:
  V4L/DVB (9920): em28xx: fix NULL pointer dereference in call to VIDIOC_INT_RESET command
  V4L/DVB (9908a): MAINTAINERS: mark linux-uvc-devel as subscribers only
  V4L/DVB (9906): v4l2-compat: test for unlocked_ioctl as well.
  V4L/DVB (9885): drivers/media Kconfig's: fix bugzilla #12204
  V4L/DVB (9875): gspca - main: Fix vidioc_s_jpegcomp locking.
  V4L/DVB (9781): [PATCH] Cablestar 2 I2C retries (fix CableStar2 support)
  V4L/DVB (9780): dib0700: Stop repeating after user stops pushing button

15 years agoMerge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Wed, 24 Dec 2008 18:24:14 +0000 (10:24 -0800)]
Merge branch 'x86-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86: disable X86_PTRACE_BTS

15 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
Linus Torvalds [Wed, 24 Dec 2008 18:23:21 +0000 (10:23 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/tiwai/sound-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
  ALSA: hda - Add missing terminators in patch_sigmatel.c

15 years agoALSA: hda - Add missing terminators in patch_sigmatel.c
Herton Ronaldo Krzesinski [Tue, 23 Dec 2008 18:53:00 +0000 (16:53 -0200)]
ALSA: hda - Add missing terminators in patch_sigmatel.c

Signed-off-by: Herton Ronaldo Krzesinski <herton@mandriva.com.br>
Cc: stable@kernel.org
Signed-off-by: Takashi Iwai <tiwai@suse.de>
15 years agox86: disable X86_PTRACE_BTS
Ingo Molnar [Wed, 24 Dec 2008 09:49:51 +0000 (10:49 +0100)]
x86: disable X86_PTRACE_BTS

there's a new ptrace arch level feature in .28:

  config X86_PTRACE_BTS
  bool "Branch Trace Store"

it has broken fork() handling: the old DS area gets copied over into
a new task without clearing it.

Fixes exist but they came too late:

  c5dee61: x86, bts: memory accounting
  bf53de9: x86, bts: add fork and exit handling

and are queued up for v2.6.29. This shows that the facility is still not
tested well enough to release into a stable kernel - disable it for now and
reactivate in .29. In .29 the hardware-branch-tracer will use the DS/BTS
facilities too - hopefully resulting in better code.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
15 years agoparisc: disable UP-optimized flush_tlb_mm
Kyle McMartin [Tue, 23 Dec 2008 13:44:30 +0000 (08:44 -0500)]
parisc: disable UP-optimized flush_tlb_mm

flush_tlb_mm's "optimized" uniprocessor case of allocating a new
context for userspace is exposing a race where we can suddely return
to a syscall with the protection id and space id out of sync, trapping
on the next userspace access.

Debugged-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Tested-by: Helge Deller <deller@gmx.de>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoMerge branch 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied...
Linus Torvalds [Wed, 24 Dec 2008 01:01:40 +0000 (17:01 -0800)]
Merge branch 'drm-fixes' of git://git./linux/kernel/git/airlied/drm-2.6

* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
  drm/radeon: fix correctness of irq_enabled check for radeon.

15 years agoedac: fix edac core deadlock when removing a device
Harry Ciao [Tue, 23 Dec 2008 21:57:16 +0000 (13:57 -0800)]
edac: fix edac core deadlock when removing a device

When deleting an edac device, we have to wait for its edac_dev.work to be
completed before deleting the whole edac_dev structure.  Since we have no
idea which work in current edac_poller's workqueue is the work we are
conerned about, we wait for all work in the edac_poller's workqueue to be
proceseed.  This is done via flush_cpu_workqueue() which inserts a
wq_barrier into the tail of the workqueue and then sleeping on the
completion of this wq_barrier.  The edac_poller will wake up sleepers when
it is found.

EDAC core creates only one kernel worker thread, edac_poller, to run the
works of all current edac devices.  They share the same callback function
of edac_device_workq_function(), which would grab the mutex of
device_ctls_mutex first before it checks the device.  This is exactly
where edac_poller and rmmod would have a great chance to deadlock.

In below call trace of rmmod > ... >
edac_device_del_device >
edac_device_workq_teardown > flush_workqueue > flush_cpu_workqueue,

device_ctls_mutex would have already been grabbed by
edac_device_del_device().  So, on one hand rmmod would sleep on the
completion of a wq_barrier, holding device_ctls_mutex; on the other hand
edac_poller would be blocked on the same mutex when it's running any one
of works of existing edac evices(Note, this edac_dev.work is likely to be
totally irrelevant to the one that is being removed right now)and never
would have a chance to run the work of above wq_barrier to wake rmmod up.

edac_device_workq_teardown() should not be called within the critical
region of device_ctls_mutex.  Just like is done in edac_pci_del_device()
and edac_mc_del_mc(), where edac_pci_workq_teardown() and
edac_mc_workq_teardown() are called after related mutex are released.

Moreover, an edac_dev.work should check first if it is being removed.  If
this is the case, then it should bail out immediately.  Since not all of
existing edac devices are to be removed, this "shutting flag" should be
contained to edac device being removed.  The current edac_dev.op_state can
be used to serve this purpose.

The original deadlock problem and the solution have been witnessed and
tested on actual hardware.  Without the solution, rmmod an edac driver
would result in below deadlock:

root@localhost:/root> rmmod mv64x60_edac
EDAC DEBUG: mv64x60_dma_err_remove()
EDAC DEBUG: edac_device_del_device()
EDAC DEBUG: find_edac_device_by_dev()

(hang for a moment)

INFO: task edac-poller:2030 blocked for more than 120 seconds.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
edac-poller   D 00000000     0  2030      2
Call Trace:
[df159dc0] [c0071e3c] free_hot_cold_page+0x17c/0x304 (unreliable)
[df159e80] [c000a024] __switch_to+0x6c/0xa0
[df159ea0] [c03587d8] schedule+0x2f4/0x4d8
[df159f00] [c03598a8] __mutex_lock_slowpath+0xa0/0x174
[df159f40] [e1030434] edac_device_workq_function+0x28/0xd8 [edac_core]
[df159f60] [c003beb4] run_workqueue+0x114/0x218
[df159f90] [c003c674] worker_thread+0x5c/0xc8
[df159fd0] [c004106c] kthread+0x5c/0xa0
[df159ff0] [c0013538] original_kernel_thread+0x44/0x60
INFO: task rmmod:2062 blocked for more than 120 seconds.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
rmmod         D 0ff2c9fc     0  2062   1839
Call Trace:
[df119c00] [c0437a74] 0xc0437a74 (unreliable)
[df119cc0] [c000a024] __switch_to+0x6c/0xa0
[df119ce0] [c03587d8] schedule+0x2f4/0x4d8
[df119d40] [c03591dc] schedule_timeout+0xb0/0xf4

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agocgroups: avoid accessing uninitialized data in failure path
Li Zefan [Tue, 23 Dec 2008 21:57:14 +0000 (13:57 -0800)]
cgroups: avoid accessing uninitialized data in failure path

If cgroup_get_rootdir() failed, free_cg_links() will be called in the
failure path, but tmp_cg_links hasn't been initialized at that time.

I introduced this bug in the 2.6.27 merge window.

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Acked-by: Serge Hallyn <serue@us.ibm.com>
Cc: Paul Menage <menage@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agocgroups: suppress bogus warning messages
Sharyathi Nagesh [Tue, 23 Dec 2008 21:57:12 +0000 (13:57 -0800)]
cgroups: suppress bogus warning messages

Remove spurious warning messages that are thrown onto the console during
cgroup operations.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Sharyathi Nagesh <sharyathi@in.ibm.com>
Acked-by: Serge E. Hallyn <serge@hallyn.com>
Cc: Paul Menage <menage@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agow1: fix slave selection on big-endian systems
Evgeniy Polyakov [Tue, 23 Dec 2008 21:57:12 +0000 (13:57 -0800)]
w1: fix slave selection on big-endian systems

During test of the w1-gpio driver i found that in "w1.c:679
w1_slave_found()" the device id is converted to little-endian with
"cpu_to_le64()", but its not converted back to cpu format in "w1_io.c:293
w1_reset_select_slave()".

Based on a patch created by Andreas Hummel.

[akpm@linux-foundation.org: remove unneeded cast]
Reported-by: Andreas Hummel <andi_hummel@gmx.de>
Signed-off-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agortc: rtc-isl1208: reject invalid dates
Chris Elston [Tue, 23 Dec 2008 21:57:10 +0000 (13:57 -0800)]
rtc: rtc-isl1208: reject invalid dates

This patch for the rtc-isl1208 driver makes it reject invalid dates.

Signed-off-by: Chris Elston <celston@katalix.com>
[a.zummo@towertech.it: added comment explaining the check]
Signed-off-by: Alessandro Zummo <a.zummo@towertech.it>
Cc: Hebert Valerio Riedel <hvr@gnu.org>
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>
15 years agoeeepc-laptop: use select and not depends on
Corentin Chary [Tue, 23 Dec 2008 20:08:29 +0000 (21:08 +0100)]
eeepc-laptop: use select and not depends on

As len said:
"Kconfig should offer users features, and not make users
devine their dependencies.

Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoV4L/DVB (9920): em28xx: fix NULL pointer dereference in call to VIDIOC_INT_RESET...
Devin Heitmueller [Wed, 17 Dec 2008 02:09:35 +0000 (23:09 -0300)]
V4L/DVB (9920): em28xx: fix NULL pointer dereference in call to VIDIOC_INT_RESET command

Fix a NULL pointer dereference that would occur if the video decoder tied to
the em28xx supports the VIDIOC_INT_RESET call (for example: the cx25840 driver)

Signed-off-by: Devin Heitmueller <dheitmueller@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
15 years agoACPI: disable MPS when NO APIC-table found
Len Brown [Tue, 23 Dec 2008 06:47:42 +0000 (01:47 -0500)]
ACPI: disable MPS when NO APIC-table found

When ACPI is asked to find an MADT (APIC table)
and fails, then ACPI expects to run in PIC mode.

However, if an MP Table is was found, IRQs will be
registered as if an IOAPIC is being used, even
though ACPI is configuring interrupt links links for PIC mode.

In this scenario, disable MPS so that IRQs
are registered in PIC mode, consistent with ACPI.

http://bugzilla.kernel.org/show_bug.cgi?id=12257

Signed-off-by: Len Brown <len.brown@intel.com>
15 years agodrm/radeon: fix correctness of irq_enabled check for radeon.
Dave Airlie [Mon, 22 Dec 2008 07:11:02 +0000 (17:11 +1000)]
drm/radeon: fix correctness of irq_enabled check for radeon.

This check was introduced with the logic the wrong way around.

Fixes regression: http://bugzilla.kernel.org/show_bug.cgi?id=12216

Tested-by: François Valenduc <francois.valenduc@tvcablenet.be>
Signed-off-by: Dave Airlie <airlied@redhat.com>
15 years agoNewly inserted battery might differ from one just removed, so
Alexey Starikovskiy [Mon, 22 Dec 2008 23:44:54 +0000 (02:44 +0300)]
Newly inserted battery might differ from one just removed, so
update of battery info fields is required.

Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Acked-by: Andy Neitzke <neitzke@ias.edu>
Signed-off-by: Alexey Starikovskiy <astarikovskiy <at> suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoMerge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux...
Linus Torvalds [Mon, 22 Dec 2008 22:52:00 +0000 (14:52 -0800)]
Merge branch 'release' of git://git./linux/kernel/git/lenb/linux-acpi-2.6

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6:
  ACPI: don't cond_resched() when irqs_disabled()
  ACPI: fix 2.6.28 acpi.debug_level regression

15 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6
Linus Torvalds [Mon, 22 Dec 2008 22:40:48 +0000 (14:40 -0800)]
Merge git://git./linux/kernel/git/bart/ide-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6:
  drivers/ide/{cs5530.c,sc1200.c}: Move a dereference below a NULL test

15 years agodrivers/ide/{cs5530.c,sc1200.c}: Move a dereference below a NULL test
Julia Lawall [Mon, 22 Dec 2008 22:05:06 +0000 (23:05 +0100)]
drivers/ide/{cs5530.c,sc1200.c}: Move a dereference below a NULL test

In each case, if the NULL test is necessary, then the dereference should be
moved below the NULL test.

The semantic patch that makes this change is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@@
type T;
expression E;
identifier i,fld;
statement S;
@@

- T i = E->fld;
+ T i;
  ... when != E
      when != i
  if (E == NULL) S
+ i = E->fld;
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
15 years agoMerge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
Linus Torvalds [Mon, 22 Dec 2008 18:17:19 +0000 (10:17 -0800)]
Merge branch 'upstream' of git://ftp.linux-mips.org/upstream-linus

* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
  MIPS: MIPS64R2: Fix buggy __arch_swab64
  MIPS: Fix preprocessor warnings flaged by GCC 4.4

15 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
Linus Torvalds [Mon, 22 Dec 2008 18:12:54 +0000 (10:12 -0800)]
Merge git://git./linux/kernel/git/davem/net-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
  ppp: fix segfaults introduced by netdev_priv changes
  net: Fix module refcount leak in kernel_accept()

15 years agoMIPS: MIPS64R2: Fix buggy __arch_swab64
David Daney [Wed, 17 Dec 2008 21:28:39 +0000 (13:28 -0800)]
MIPS: MIPS64R2: Fix buggy __arch_swab64

The way the code is written it was assuming dshd has the function of a
hypothetical dshw instruction ...

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
15 years agoMIPS: Fix preprocessor warnings flaged by GCC 4.4
David Daney [Thu, 18 Dec 2008 02:19:18 +0000 (18:19 -0800)]
MIPS: Fix preprocessor warnings flaged by GCC 4.4

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
15 years agoNull pointer deref with hrtimer_try_to_cancel()
Thomas Gleixner [Sat, 20 Dec 2008 20:27:34 +0000 (21:27 +0100)]
Null pointer deref with hrtimer_try_to_cancel()

Impact: Prevent kernel crash with posix timer clockid CLOCK_MONOTONIC_RAW

commit 2d42244ae71d6c7b0884b5664cf2eda30fb2ae68 (clocksource:
introduce CLOCK_MONOTONIC_RAW) introduced a new clockid, which is only
available to read out the raw not NTP adjusted system time.

The above commit did not prevent that a posix timer can be created
with that clockid. The timer_create() syscall succeeds and initializes
the timer to a non existing hrtimer base. When the timer is deleted
either by timer_delete() or by the exit() cleanup the kernel crashes.

Prevent the creation of timers for CLOCK_MONOTONIC_RAW by setting the
posix clock function to no_timer_create which returns an error code.

Reported-and-tested-by: Eric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh...
Linus Torvalds [Sat, 20 Dec 2008 19:07:31 +0000 (11:07 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/ericvh/v9fs

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs:
  fs/9p: change simple_strtol to simple_strtoul
  9p: convert d_iname references to d_name.name
  9p: Remove potentially bad parameter from function entry debug print.

15 years agoMerge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sat, 20 Dec 2008 19:07:18 +0000 (11:07 -0800)]
Merge branch 'x86-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86: fix resume (S2R) broken by Intel microcode module, on A110L
  x86 gart: don't complain if no AMD GART found
  AMD IOMMU: panic if completion wait loop fails
  AMD IOMMU: set cmd buffer pointers to zero manually
  x86: re-enable MCE on secondary CPUS after suspend/resume
  AMD IOMMU: allocate rlookup_table with __GFP_ZERO

15 years agox86: fix resume (S2R) broken by Intel microcode module, on A110L
Dmitry Adamushko [Fri, 19 Dec 2008 23:15:24 +0000 (00:15 +0100)]
x86: fix resume (S2R) broken by Intel microcode module, on A110L

Impact: fix deadlock

This is in response to the following bug report:

Bug-Entry       : http://bugzilla.kernel.org/show_bug.cgi?id=12100
Subject         : resume (S2R) broken by Intel microcode module, on A110L
Submitter       : Andreas Mohr <andi@lisas.de>
Date            : 2008-11-25 08:48 (19 days old)
Handled-By      : Dmitry Adamushko <dmitry.adamushko@gmail.com>

[ The deadlock scenario has been discovered by Andreas Mohr ]

I think I might have a logical explanation why the system:

  (http://bugzilla.kernel.org/show_bug.cgi?id=12100)

might hang upon resuming, OTOH it should have likely hanged each and every time.

(1) possible deadlock in microcode_resume_cpu() if either 'if' section is
taken;

(2) now, I don't see it in spec. and can't experimentally verify it (newer
ucodes don't seem to be available for my Core2duo)... but logically-wise, I'd
think that when read upon resuming, the 'microcode revision' (MSR 0x8B) should
be back to its original one (we need to reload ucode anyway so it doesn't seem
logical if a cpu doesn't drop the version)... if so, the comparison with
memcmp() for the full 'struct cpu_signature' is wrong... and that's how one of
the aforementioned 'if' sections might have been triggered - leading to a
deadlock.

Obviously, in my tests I simulated loading/resuming with the ucode of the same
version (just to see that the file is loaded/re-loaded upon resuming) so this
issue has never popped up.

I'd appreciate if someone with an appropriate system might give a try to the
2nd patch (titled "fix a comparison && deadlock...").

In any case, the deadlock situation is a must-have fix.

Reported-by: Andreas Mohr <andi@lisas.de>
Signed-off-by: Dmitry Adamushko <dmitry.adamushko@gmail.com>
Tested-by: Andreas Mohr <andi@lisas.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: <stable@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
15 years agofs/9p: change simple_strtol to simple_strtoul
Julia Lawall [Fri, 19 Dec 2008 22:50:22 +0000 (16:50 -0600)]
fs/9p: change simple_strtol to simple_strtoul

Since v9ses->uid is unsigned, it would seem better to use simple_strtoul that
simple_strtol.

A simplified version of the semantic patch that makes this change is as
follows: (http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@r2@
long e;
position p;
@@

e = simple_strtol@p(...)

@@
position p != r2.p;
type T;
T e;
@@

e =
- simple_strtol@p
+ simple_strtoul
  (...)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Acked-by: Eric Van Hensbergen <ericvh@gmail.com>
15 years ago9p: convert d_iname references to d_name.name
Wu Fengguang [Fri, 19 Dec 2008 22:47:40 +0000 (16:47 -0600)]
9p: convert d_iname references to d_name.name

d_iname is rubbish for long file names.
Use d_name.name in printks instead.

Signed-off-by: Wu Fengguang <wfg@linux.intel.com>
Acked-by: Eric Van Hensbergen <ericvh@gmail.com>
15 years ago9p: Remove potentially bad parameter from function entry debug print.
Duane Griffin [Fri, 19 Dec 2008 22:45:21 +0000 (16:45 -0600)]
9p: Remove potentially bad parameter from function entry debug print.

Signed-off-by: Duane Griffin <duaneg@dghda.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
15 years agodoc: fix kernel-parameters.txt formatting
Randy Dunlap [Fri, 19 Dec 2008 18:57:32 +0000 (10:57 -0800)]
doc: fix kernel-parameters.txt formatting

Spell out "wrt".  I suspect plenty of people won't know
what that means.

Fix a '}' that should be a ']'.

Reformat long lines into shorter lines.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6
Linus Torvalds [Fri, 19 Dec 2008 19:37:23 +0000 (11:37 -0800)]
Merge git://git./linux/kernel/git/jejb/scsi-rc-fixes-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6:
  [SCSI] mpt fusion: clear list of outstanding commands on host reset
  [SCSI] scsi_lib: only call scsi_unprep_request() under queue lock
  [SCSI] ibmvstgt: move crq_queue_create to the end of initialization
  [SCSI] libiscsi REGRESSION: fix passthrough support with older iscsi tools
  [SCSI] aacraid: disable Dell Percraid quirk on Adaptec 2200S and 2120S

15 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
Linus Torvalds [Fri, 19 Dec 2008 19:37:07 +0000 (11:37 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/tiwai/sound-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
  ALSA: Fix a Oops bug in omap soc driver.
  ALSA: hda - Remove non-working headphone control for Dell laptops
  ALSA: hda - Add no-jd model for IDT 92HD73xx
  ALSA: Revert "ALSA: hda: removed unneeded hp_nid references"
  ALSA: hda - Add quirk for Dell Studio 17
  ALSA: hda - Fix silent HP output on D975

15 years agoMerge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block
Linus Torvalds [Fri, 19 Dec 2008 19:36:49 +0000 (11:36 -0800)]
Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block

* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
  cciss: fix problem that deleting multiple logical drives could cause a panic

15 years agoMerge branch 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied...
Linus Torvalds [Fri, 19 Dec 2008 19:36:04 +0000 (11:36 -0800)]
Merge branch 'drm-fixes' of git://git./linux/kernel/git/airlied/drm-2.6

* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
  drm/i915: GEM on PAE has problems - disable it for now.
  drm/i915: Don't return busy for buffers left on the flushing list.