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SubjectACPI & driver patches for 2.6.30-rc7
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 Brown
Intel Open Source Technology Center


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/2.6.30/acpi-release-20090521-2.6.30-rc7.diff.gz

arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c | 4 ++--
drivers/acpi/pci_bind.c | 24 ++++++------------------
drivers/acpi/processor_idle.c | 8 +++++++-
drivers/acpi/processor_perflib.c | 12 +++++++++---
drivers/acpi/processor_throttling.c | 2 +-
drivers/acpi/video.c | 18 +++++++++++++++++-
drivers/dma/ioat_dma.c | 2 +-
drivers/gpu/drm/Kconfig | 14 +++++++-------
drivers/idle/i7300_idle.c | 6 +++++-
include/linux/i7300_idle.h | 20 ++++++++++----------
10 files changed, 65 insertions(+), 45 deletions(-)

through these commits:

Frans Pop (1):
ACPI processor: remove spurious newline from warning message

Jaswinder Singh Rajput (1):
drm/i915: acpi/video.c fix section mismatch warning

Joe Perches (1):
acpi-cpufreq: fix printk typo and indentation

Kenji Kaneshige (1):
PCI/ACPI: fix wrong ref count handling in acpi_pci_bind()

Len Brown (3):
i7300_idle: allow testing on i5000-series hardware w/o re-compile
ACPI: sanity check _PSS frequency to prevent cpufreq crash
ACPI, i915: build fix (v2)

Shaohua Li (2):
cpuidle: makes AMD C1E work in acpi_idle
cpuidle: fix AMD C1E suspend hang

Zhang Rui (2):
ACPI: video: DMI workaround broken eMachines E510 BIOS enabling display brightness
ACPI: video: DMI workaround broken Acer 5315 BIOS enabling display brightness

with this log:

commit 6afec830acc75a4dc4a7547c66fbf18152c946ef
Merge: 93bcece 7d60e8a 34d531e dacd254 31db564 2f10260
Author: Len Brown <len.brown@intel.com>
Date: Fri May 29 21:30:01 2009 -0400

Merge branches 'bugzilla-13121+', 'bugzilla-13233', 'redhat-bugzilla-500311', 'pci-bind-oops', 'misc-2.6.30' and 'i7300_idle' into release

commit 31db5645bda24682dadbc97d5e8a7918ade2a298
Author: Len Brown <len.brown@intel.com>
Date: Fri May 29 21:11:27 2009 -0400

ACPI, i915: build fix (v2)

drivers/built-in.o: In function `intel_opregion_init':
(.text+0x9d540): undefined reference to `acpi_video_register'

v2: move under DRM_I915 from DRM_I915_KMS

Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>

commit 61c8c67e3ad67ea1d1360f2e88688bd942834756
Author: Joe Perches <joe@perches.com>
Date: Tue May 26 14:58:39 2009 -0700

acpi-cpufreq: fix printk typo and indentation

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>

commit 21671b88be331fb9c95891d5ee7d2e940e6b024c
Author: Frans Pop <elendil@planet.nl>
Date: Fri May 22 10:23:40 2009 +0200

ACPI processor: remove spurious newline from warning message

Commit 4973b22a ("ACPI processor: reset the throttling state once it's
invalid") introduced a new warning which prints a spurious newline.

The ACPI_WARNING macro that is used already takes care of adding a
newline, after adding ACPI_CA_VERSION to the message. Remove the newline
to avoid the message getting split into two lines.

Signed-off-by: Frans Pop <elendil@planet.nl>
Signed-off-by: Len Brown <len.brown@intel.com>

commit 1fc8d33acafe68bdcc21b327d22ef3820b819727
Author: Jaswinder Singh Rajput <jaswinder@kernel.org>
Date: Wed May 20 11:56:08 2009 +0530

drm/i915: acpi/video.c fix section mismatch warning

Currently acpi_video_exit() is exported as well as using __exit which causes:

WARNING: drivers/acpi/video.o(__ksymtab+0x0): Section mismatch in reference from the variable __ksymtab_acpi_video_exit to the function .exit.text:acpi_video_exit()
The symbol acpi_video_exit is exported and annotated __exit
Fix this by removing the __exit annotation of acpi_video_exit or drop the export.

Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>

commit 93bcece20ef87c29548ec7e66532f1018572cea0
Author: Zhang Rui <rui.zhang@intel.com>
Date: Tue May 19 15:08:41 2009 -0400

ACPI: video: DMI workaround broken Acer 5315 BIOS enabling display brightness

http://bugzilla.kernel.org/show_bug.cgi?id=13121

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

commit 34ac272b3aaef11a91e19a72f3ac5772a96ffbc5
Author: Zhang Rui <rui.zhang@intel.com>
Date: Tue May 26 23:35:34 2009 -0400

ACPI: video: DMI workaround broken eMachines E510 BIOS enabling display brightness

http://bugzilla.kernel.org/show_bug.cgi?id=13376

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

commit 34d531e640cb805973cf656b15c716b961565cea
Author: Len Brown <len.brown@intel.com>
Date: Tue May 26 15:11:06 2009 -0400

ACPI: sanity check _PSS frequency to prevent cpufreq crash

When BIOS SETUP is changed to disable EIST, some BIOS
hand the OS an un-initialized _PSS:

Name (_PSS, Package (0x06)
{
Package (0x06)
{
0x80000000, // frequency [MHz]
0x80000000, // power [mW]
0x80000000, // latency [us]
0x80000000, // BM latency [us]
0x80000000, // control
0x80000000 // status
},
...

These are outrageous values for frequency,
power and latency, raising the question where to draw
the line between legal and illegal. We tend to survive
garbage in the power and latency fields, but we can BUG_ON
when garbage is in the frequency field.

Cpufreq multiplies the frequency by 1000 and stores it in a u32 KHz.
So disregard a _PSS with a frequency so large
that it can't be represented by cpufreq.

https://bugzilla.redhat.com/show_bug.cgi?id=500311

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

commit 2f102607ac77354b02a76cf2748598ce9f270f08
Author: Len Brown <len.brown@intel.com>
Date: Wed May 27 23:59:58 2009 -0400

i7300_idle: allow testing on i5000-series hardware w/o re-compile

Testing the i7300_idle driver on i5000-series hardware required
an edit to i7300_idle.h to "#define SUPPORT_I5000 1" and a re-build
of both i7300_idle and ioat_dma.

Replace that build-time scheme with a load-time module parameter:
"7300_idle.forceload=1" to make it easier to test the driver
on hardware that while not officially validated, works fine
and is much more commonly available.

By default (no modparam) the driver will continue to load
only on the i7300.

Note that ioat_dma runs a copy of i7300_idle's probe routine
to know to reserve an IOAT channel for i7300_idle.
This change makes ioat_dma do that always on the i5000,
just like it does on the i7300.

Signed-off-by: Len Brown <len.brown@intel.com>
Acked-by: Andrew Henroid <andrew.d.henroid@intel.com>

commit dacd2549ca61ddbdd1ed62a76ca95dea3f0e02c6
Author: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Date: Tue May 26 09:08:03 2009 +0900

PCI/ACPI: fix wrong ref count handling in acpi_pci_bind()

The 'dev' field of struct acpi_pci_data is having a pointer to struct
pci_dev without incrementing the reference counter. Because of this, I
got the following kernel oops when I was doing some pci hotplug
operations. This patch fixes this bug by replacing wrong hand-made
pci_find_slot() with pci_get_slot() in acpi_pci_bind().

BUG: unable to handle kernel NULL pointer dereference at 00000000000000e8
IP: [<ffffffff803f0e9b>] acpi_pci_unbind+0xb1/0xdd

Call Trace:
[<ffffffff803ecee4>] acpi_bus_remove+0x54/0x68
[<ffffffff803ecf6d>] acpi_bus_trim+0x75/0xe3
[<ffffffffa0345ddd>] acpiphp_disable_slot+0x16d/0x1e0 [acpiphp]
[<ffffffffa03441f0>] disable_slot+0x20/0x60 [acpiphp]
[<ffffffff803cfc18>] power_write_file+0xc8/0x110
[<ffffffff803c6a54>] pci_slot_attr_store+0x24/0x30
[<ffffffff803469ce>] sysfs_write_file+0xce/0x140
[<ffffffff802e94e7>] vfs_write+0xc7/0x170
[<ffffffff802e9aa0>] sys_write+0x50/0x90
[<ffffffff8020bd6b>] system_call_fastpath+0x16/0x1b

Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Reviewed-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Reviewed-by: Alex Chiang <achiang@hp.com>
Tested-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>

commit 7d60e8ab0d5507229dfbdf456501cc378610fa01
Author: Shaohua Li <shaohua.li@intel.com>
Date: Tue May 19 16:09:54 2009 +0800

cpuidle: fix AMD C1E suspend hang

When AMD C1E is enabled, local APIC timer will stop even in C1. To avoid
suspend/resume hang, this patch removes C1 and replace it with a cpu_relax() in
suspend/resume path. This hasn't any impact in runtime path.

http://bugzilla.kernel.org/show_bug.cgi?id=13233

[ impact: avoid suspend/resume hang in AMD CPU with C1E enabled ]

Tested-by: Dmitry Lyzhyn <thisistempbox@yahoo.com>
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>

commit 87ad57bacb25c3f24c54f142ef445f68277705f0
Author: Shaohua Li <shaohua.li@intel.com>
Date: Tue May 19 16:09:42 2009 +0800

cpuidle: makes AMD C1E work in acpi_idle

When AMD C1E is enabled, local APIC timer will stop even in C1.
This patch uses broadcast IPI to replace local APIC timer in C1.

http://bugzilla.kernel.org/show_bug.cgi?id=13233

[ impact: avoid boot hang in AMD CPU with C1E enabled ]

Tested-by: Dmitry Lyzhyn <thisistempbox@yahoo.com>
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>


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