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Subject[GIT PATCH] ACPI patches for 2.6.26-rc5
Hi Linus,

please pull from:

git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6.git release

This will update the files shown below.

thanks!

-Len

ps. individual patches are available on linux-acpi@vger.kernel.org
and a consolidated plain patch is available here:
ftp://ftp.kernel.org/pub/linux/kernel/people/lenb/acpi/patches/release/2.6.26/acpi-release-20080321-2.6.26-rc5.diff.gz

Documentation/laptops/thinkpad-acpi.txt | 2 +-
MAINTAINERS | 10 +-
arch/ia64/kernel/acpi.c | 9 ++-
arch/x86/mm/srat_64.c | 27 ------
drivers/acpi/bay.c | 16 ++--
drivers/acpi/dispatcher/dsfield.c | 5 +-
drivers/acpi/dock.c | 2 +-
drivers/acpi/ec.c | 2 +-
drivers/acpi/executer/exconfig.c | 10 ++-
drivers/acpi/glue.c | 6 ++
drivers/acpi/hardware/hwsleep.c | 8 +-
drivers/acpi/numa.c | 31 ++++++-
drivers/acpi/parser/psargs.c | 4 +-
drivers/acpi/processor_core.c | 1 -
drivers/acpi/processor_idle.c | 7 +-
drivers/acpi/sleep/proc.c | 6 ++
drivers/acpi/system.c | 15 +---
drivers/acpi/tables/tbinstal.c | 25 ++----
drivers/acpi/tables/tbxface.c | 2 +-
drivers/acpi/thermal.c | 11 ++-
drivers/acpi/utilities/utmisc.c | 2 +-
drivers/cpuidle/cpuidle.c | 40 ++++++++-
drivers/misc/thinkpad_acpi.c | 140 ++++++++++++++++++-------------
drivers/pnp/pnpacpi/rsparser.c | 46 +++++++----
include/acpi/processor.h | 1 +
include/linux/cpuidle.h | 1 +
include/linux/ioport.h | 6 +-
27 files changed, 255 insertions(+), 180 deletions(-)

through these commits:

Adrian Bunk (2):
MAINTAINERS: update ACPI homepage
proper prototype for acpi_processor_tstate_has_changed()

Akinobu Mita (1):
ACPI: use memory_read_from_buffer()

Alexey Starikovskiy (1):
ACPI: EC: Use msleep instead of udelay while waiting for event.

Alistair John Strachan (1):
ACPI 2.6.26-rc2: Add missing newline to DSDT/SSDT warning message

Arjan van de Ven (1):
ACPI: Reject below-freezing temperatures as invalid critical temperatures

Bjorn Helgaas (3):
pnpacpi: fix IRQ flag decoding
pnpacpi: fix shareable IRQ encode/decode
PNPACPI: use _CRS IRQ descriptor length for _SRS

Bob Moore (5):
ACPICA: Fix to allow zero-length ASL field declarations
ACPICA: Ignore ACPI table signature for Load() operator
ACPICA: Fix for Load operator, load table at the namespace root
ACPICA: Fix to make _SST method optional
ACPICA: Fix for access to deleted object <regression>

Fenghua Yu (1):
ACPI: handle invalid ACPI SLIT table

Henrique de Moraes Holschuh (3):
thinkpad-acpi: SW_RADIO to SW_RFKILL_ALL rename
thinkpad-acpi: fix initialization error paths
thinkpad-acpi: fix LED handling on older ThinkPads

Holger Macht (1):
bay: exit if notify handler cannot be installed

Len Brown (1):
ACPICA: fix stray va_end() caused by mis-merge

Tim Pepper (1):
dock.c remove trailing printk whitespace

Venkatesh Pallipadi (1):
cpuidle acpi driver: fix oops on AC<->DC

Zhao Yakui (1):
ACPI: Disable Fixed_RTC event when installing RTC handler

with this log:

commit 3549dba2c334e82df90f5e00ff85d2a7a2cdd1af
Author: Len Brown <len.brown@intel.com>
Date: Fri Jun 6 15:32:39 2008 -0400

ACPICA: fix stray va_end() caused by mis-merge

Signed-off-by: Len Brown <len.brown@intel.com>

commit a39a2d7c72b358c6253a2ec28e17b023b7f6f41c
Author: Arjan van de Ven <arjan@linux.intel.com>
Date: Mon May 19 15:55:15 2008 -0700

ACPI: Reject below-freezing temperatures as invalid critical temperatures

My laptop thinks that it's a good idea to give -73C as the critical
CPU temperature.... which isn't the best thing since it causes a shutdown
right at bootup.

Temperatures below freezing are clearly invalid critical thresholds
so just reject these as such.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Acked-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>

commit 8410565f540db87ca938f56f92780d251e4f157d
Author: Bob Moore <robert.moore@intel.com>
Date: Tue Jun 10 14:29:26 2008 +0800

ACPICA: Fix for access to deleted object <regression>

Fixes problem introduced in 20080123, with fix for Unload operator.
Parse tree object can be already deleted; must use the opcode
within the WalkState.

ACPI: kmemcheck: Caught 16-bit read from freed memory
http://bugzilla.kernel.org/show_bug.cgi?id=10669

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>

commit d52c79ace60a2e2b22455fd195ff4bc8e7afa177
Author: Bob Moore <robert.moore@intel.com>
Date: Tue Jun 10 14:26:57 2008 +0800

ACPICA: Fix to make _SST method optional

Fixes a problem introduced in 20080514 where the status of
execution of _SST is incorrectly returned to the caller. _SST
is optional, and if it is AE_NOT_FOUND, the exception should be
ignored.

http://www.acpica.org/bugzilla/show_bug.cgi?id=716

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>

commit 0bda3f2f86e233b00b46d91b07db25dd23ec15bc
Author: Bob Moore <robert.moore@intel.com>
Date: Tue Jun 10 14:14:17 2008 +0800

ACPICA: Fix for Load operator, load table at the namespace root

This reverts a change introduced in version 20071019. The table
is now loaded at the namespace root even though this goes against
the ACPI specification. This provides compatibility with other
ACPI implementations.

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>

commit bc45b1d39a925b56796bebf8a397a0491489d85c
Author: Bob Moore <robert.moore@intel.com>
Date: Tue Jun 10 14:12:50 2008 +0800

ACPICA: Ignore ACPI table signature for Load() operator

Only "SSDT" is acceptable to the ACPI spec, but tables are
seen with OEMx and null sigs. Therefore, signature validation
is worthless. Apparently MS ACPI accepts such signatures, ACPICA
must be compatible.

http://bugzilla.kernel.org/show_bug.cgi?id=10454

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>

commit 7aa7d4336df34e32195557a1ad422627bd69ef0b
Author: Bob Moore <robert.moore@intel.com>
Date: Tue Jun 10 13:00:32 2008 +0800

ACPICA: Fix to allow zero-length ASL field declarations

Allows null field list in Field(), BankField(), and IndexField().

2.6.26-rc1 regression: ACPI fails to load SDT. - Dell M1530
http://bugzilla.kernel.org/show_bug.cgi?id=10606

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>

commit 46a21e465e506bcd4dba759a39e7ef79978a705d
Author: Akinobu Mita <akinobu.mita@gmail.com>
Date: Mon Jun 9 16:22:26 2008 -0700

ACPI: use memory_read_from_buffer()

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Acked-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>

commit 7efd52a407bed6a2b02015b8ebbff7beba155392
Author: Holger Macht <hmacht@suse.de>
Date: Mon Jun 9 16:22:24 2008 -0700

bay: exit if notify handler cannot be installed

If acpi_install_notify_handler() for a bay device fails, the bay driver is
superfluous. Most likely, another driver (like libata) is already caring
about this device anyway. Furthermore,
register_hotplug_dock_device(acpi_handle) from the dock driver must not be
called twice with the same handler. This would result in an endless loop
consuming 100% of CPU. So clean up and exit.

Signed-off-by: Holger Macht <hmacht@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>

commit 1fdd68608614cd1e951fd93873fe5597374e8c54
Author: Tim Pepper <lnxninja@linux.vnet.ibm.com>
Date: Mon Jun 9 16:22:25 2008 -0700

dock.c remove trailing printk whitespace

Signed-off-by: Tim Pepper <lnxninja@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>

commit a66b34b26fe1b0983c6d91b6381df806cd98886e
Author: Adrian Bunk <bunk@kernel.org>
Date: Mon Jun 9 16:22:24 2008 -0700

proper prototype for acpi_processor_tstate_has_changed()

This patch adds a proper prototype for acpi_processor_tstate_has_changed()
in include/acpi/processor.h

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Cc: Len Brown <lenb@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>

commit 39b8931b5cad9a7cbcd2394a40a088311e783a82
Author: Fenghua Yu <fenghua.yu@intel.com>
Date: Mon Jun 9 16:48:18 2008 -0700

ACPI: handle invalid ACPI SLIT table

This is a SLIT sanity checking patch. It moves slit_valid() function to
generic ACPI code and does sanity checking for both x86 and ia64. It sets up
node_distance with LOCAL_DISTANCE and REMOTE_DISTANCE when hitting invalid
SLIT table on ia64. It also cleans up unused variable localities in
acpi_parse_slit() on x86.

Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>

commit 36d872a370d3d10e5a7faa9dcacce744260fb13b
Author: Bjorn Helgaas <bjorn.helgaas@hp.com>
Date: Mon Jun 9 16:52:06 2008 -0700

PNPACPI: use _CRS IRQ descriptor length for _SRS

When configuring the resources of an ACPI device, we first evaluate _CRS
to get a template of resource descriptors, then fill in the specific
resource values we want, and finally evaluate _SRS to actually configure
the device.

Some resources have optional fields, so the size of encoded descriptors
varies depending on the specific values. For example, IRQ descriptors can
be either two or three bytes long. The third byte contains triggering
information and can be omitted if the IRQ is edge-triggered and active
high.

The BIOS often assumes that IRQ descriptors in the _SRS buffer use the
same format as those in the _CRS buffer, so this patch enforces that
constraint.

The "Start Dependent Function" descriptor also has an optional byte, but
we don't currently encode those descriptors, so I didn't do anything for
those.

I have tested this patch on a Toshiba Portege 4000. Without the patch,
parport_pc claims the parallel port only if I use "pnpacpi=off". This
patch makes it work with PNPACPI.

This is an extension of a patch by Tom Jaeger:
http://bugzilla.kernel.org/show_bug.cgi?id=9487#c42

References:
http://bugzilla.kernel.org/show_bug.cgi?id=5832 Enabling ACPI Plug and Play in kernels >2.6.9 kills Parallel support
http://bugzilla.kernel.org/show_bug.cgi?id=9487 buggy firmware expects four-byte IRQ resource descriptor (was: Serial port disappears after Suspend on Toshiba R25)
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=1d5b285da1893b90507b081664ac27f1a8a3dc5b related ACPICA fix

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>

commit a993273beae8022390e48fe9205480565ad470ab
Author: Bjorn Helgaas <bjorn.helgaas@hp.com>
Date: Mon Jun 9 16:52:05 2008 -0700

pnpacpi: fix shareable IRQ encode/decode

When we encode IRQ resources, we should use the "shareable" flag we got
from _PRS rather than guessing based on the IRQ trigger mode.

This is based on a patch by Tom Jaeger:
http://bugzilla.kernel.org/show_bug.cgi?id=9487#c32

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>

commit e9fe9e188118a0a34c6200d9b10ea6247f53592d
Author: Bjorn Helgaas <bjorn.helgaas@hp.com>
Date: Mon Jun 9 16:52:04 2008 -0700

pnpacpi: fix IRQ flag decoding

When decoding IRQ trigger mode and polarity, it is not enough to mask by
IORESOURCE_BITS because there are now additional bits defined. For
example, if IORESOURCE_IRQ_SHAREABLE was set, we failed to set *triggering
and *polarity at all.

I can't point to a failure that this patch fixes, but
bugs in this area have caused problems when resuming after
suspend, for example:

http://bugzilla.kernel.org/show_bug.cgi?id=6316
http://bugzilla.kernel.org/show_bug.cgi?id=9487
https://bugs.launchpad.net/ubuntu/+source/linux-source-2.6.22/+bug/152187

This is based on a patch by Tom Jaeger:
http://bugzilla.kernel.org/show_bug.cgi?id=9487#c32

[rene.herman@keyaccess.nl: fix comment]
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>

commit 0638bc8dc037d844efe1d4abf44488c037705905
Author: Adrian Bunk <bunk@kernel.org>
Date: Tue May 20 01:08:23 2008 +0300

MAINTAINERS: update ACPI homepage

This patch updates the location of the ACPI homepage in MAINTAINERS.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Len Brown <len.brown@intel.com>

commit c21d1e7f53ffd9c0f162c42e7fde07d1c45fa127
Author: Alistair John Strachan <alistair@devzero.co.uk>
Date: Mon May 12 19:13:09 2008 +0100

ACPI 2.6.26-rc2: Add missing newline to DSDT/SSDT warning message

As of recently (probably 2.6.26-rc1) I've been getting the following mangling
in the kernel log:

[4294014.568167] ACPI: DSDT override uses original SSDTs unless "acpi_no_auto_ssdt"<6>CPU0: Intel(R) Pentium(R) Dual CPU E2160 @ 1.80GHz stepping 0d

This is due to a missing newline character in the first message. The following
patch against 2.6.26-rc2 fixes it. Please apply.

Signed-off-by: Alistair John Strachan <alistair@devzero.co.uk>
Signed-off-by: Len Brown <len.brown@intel.com>

commit 1b7fc5aae8867046f8d3d45808309d5b7f2e036a
Author: Alexey Starikovskiy <astarikovskiy@suse.de>
Date: Fri Jun 6 11:49:33 2008 -0400

ACPI: EC: Use msleep instead of udelay while waiting for event.

http://bugzilla.kernel.org/show_bug.cgi?id=10724

Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>

commit 24e45bbe695719dca8c20e03d386eb6ea86526b5
Author: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Date: Tue Jun 3 23:36:11 2008 -0300

thinkpad-acpi: fix LED handling on older ThinkPads

The less tested codepaths for LED handling, used on ThinkPads 570, 600e/x,
770e, 770x, A21e, A2xm/p, T20-22, X20 and maybe a few others, would write
data to kernel memory it had no business touching, for leds number 3 and
above. If one is lucky, that illegal write would cause an OOPS, but
chances are it would silently corrupt a byte.

The problem was introduced in commit af116101, "ACPI: thinkpad-acpi: add
sysfs led class support to thinkpad leds (v3.2)".

Fix the bug by refactoring the entire code to be far more obvious on what
it wants to do. Also do some defensive "constification".

Issue reported by Karol Lewandowski <lmctlx@gmail.com> (he's an lucky guy
and got an OOPS instead of silent corruption :-) ).

Root cause of the OOPS identified by Adrian Bunk <bunk@kernel.org>.
Thanks, Adrian!

Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Tested-by: Karol Lewandowski <lmctlx@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>

commit 9c0a76e16ee6648f4bd19563e9fe12a4f4fabba1
Author: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Date: Tue Jun 3 23:36:10 2008 -0300

thinkpad-acpi: fix initialization error paths

Rework some subdriver init and exit handlers, in order to fix some
initialization error paths that were missing, or broken.

Hitting those bugs should be extremely rare in the real world, but should
that happen, thinkpad-acpi would fail to dealocate some resources and a
reboot might well be needed to be able to load the driver again.

Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>

commit 197a2cd907e3a5278a1cfd48c86402133f38a9ba
Author: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Date: Tue Jun 3 23:36:09 2008 -0300

thinkpad-acpi: SW_RADIO to SW_RFKILL_ALL rename

Rename SW_RADIO to SW_RFKILL_ALL in thinkpad-acpi code and docs, following
5adad0133907790c50283bf03271d920d6897043 "Input: rename SW_RADIO to
SW_RFKILL_ALL".

Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>

commit dcb84f335bee9c9a7781cfc5d74492dccaf066d2
Author: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Date: Mon May 19 19:09:27 2008 -0400

cpuidle acpi driver: fix oops on AC<->DC

cpuidle and acpi driver interaction bug with the way cpuidle_register_driver()
is called. Due to this bug, there will be oops on
AC<->DC on some systems, where they support C-states in one DC and not in AC.

The current code does
ON BOOT:
Look at CST and other C-state info to see whether more than C1 is
supported. If it is, then acpi processor_idle does a
cpuidle_register_driver() call, which internally enables the device.

ON CST change notification (AC<->DC) and on suspend-resume:
acpi driver temporarily disables device, updates the device with
any new C-states, and reenables the device.

The problem is is on boot, there are no C2, C3 states supported and we skip
the register. Later on AC<->DC, we may get a CST notification and we try
to reevaluate CST and enabled the device, without actually registering it.
This causes breakage as we try to create /sys fs sub directory, without the
parent directory which is created at register time.

Thanks to Sanjeev for reporting the problem here.
http://bugzilla.kernel.org/show_bug.cgi?id=10394

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>

commit e1094bfa26e5e94af2fea79e004614dbce42b008
Author: Zhao Yakui <yakui.zhao@intel.com>
Date: Wed May 14 11:32:59 2008 +0800

ACPI: Disable Fixed_RTC event when installing RTC handler

The Fixed_RTC event should be disabled when installing RTC handler.
Only when RTC alarm is set will it be enabled again. If it is not
disabled, maybe some machines will be powered on automatically after
the system is shutdown even when the RTC alarm is not set.

http://bugzilla.kernel.org/show_bug.cgi?id=10010

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>


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