Hi Linus, please pull from: git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6.git release Some regression fixes, some bug fixes, some cleanups... The hpet fix is fresh, but it works for me and I figured it makes more sense to test it upstream now than wait. This will update the files shown below. thanks! -- Len Brown Intel Open Source Technology Center ps. individual patches are available on linux-acpi@xxxxxxxxxxxxxxx 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-20090422-2.6.30-rc3.diff.gz Documentation/ABI/testing/sysfs-firmware-acpi | 8 +- Documentation/laptops/thinkpad-acpi.txt | 4 +- arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c | 30 +++--- arch/x86/kernel/quirks.c | 2 - drivers/acpi/acpica/hwsleep.c | 43 +++++--- drivers/acpi/acpica/hwvalid.c | 86 +++++++++++++--- drivers/acpi/acpica/rscreate.c | 27 +----- drivers/acpi/button.c | 140 ++++++++----------------- drivers/acpi/ec.c | 1 + drivers/acpi/osl.c | 4 +- drivers/acpi/processor_idle.c | 28 ++--- drivers/acpi/sleep.c | 27 +++++ drivers/acpi/system.c | 11 ++- drivers/acpi/thermal.c | 2 +- drivers/acpi/video.c | 51 +++++---- drivers/gpu/drm/Kconfig | 1 + drivers/gpu/drm/i915/i915_opregion.c | 9 +- drivers/platform/x86/sony-laptop.c | 27 ++++-- drivers/platform/x86/thinkpad_acpi.c | 81 ++++++++------- include/acpi/processor.h | 1 - include/linux/acpi.h | 1 + 21 files changed, 319 insertions(+), 265 deletions(-) through these commits: Almer S. Tigelaar (4): sony-laptop: Duplicate SNC 127 Event Fix sony-laptop: SNC 127 Initialization Fix sony-laptop: SNC input event 38 fix ACPI: EC: Fix ACPI EC resume non-query interrupt message Bjorn Helgaas (6): ACPI: button: whitespace changes ACPI: button: remove unnecessary null pointer checks ACPI: button: use Linux style for getting driver_data ACPI: button: cache hid/name/class pointers ACPI: button: remove button->device pointer ACPI: button: remove control method/fixed hardware distinctions Henrique de Moraes Holschuh (5): thinkpad-acpi: silence hotkey enable warning for module parameter thinkpad-acpi: fix LED blinking through timer trigger thinkpad-acpi: fix use of MODULE_AUTHOR thinkpad-acpi: simplify module autoloading thinkpad-acpi: bump up version to 0.23 Len Brown (8): ACPI: Disable _GTS and _BFS support by default ACPI: add /sys/firmware/acpi/interrupts/sci_not counter ACPI: idle: mark_tsc_unstable() at init-time, not run-time ACPI: delete obsolete "bus master activity" proc field ACPI/hpet: prevent boot hang when hpet=force used on ICH-4M HPET: stop soliciting hpet=force users on ICH4M ACPI: prevent processor.max_cstate=0 boot crash Revert "ACPICA: delete check for AML access to port 0x81-83" Lin Ming (1): I/O port protection: update for windows compatibility. Matthew Garrett (3): thermal: Fix polling frequency for systems without passive cooling ACPI/i915: build fix ACPI, i915: Register ACPI video even when not modesetting Mattia Dongili (2): sony-laptop: fix bogus error message display on resume sony-laptop: always try to unblock rfkill on load Pallipadi, Venkatesh (1): x86, acpi_cpufreq: Fix the NULL pointer dereference in get_measured_perf Thomas Renninger (3): acpi-cpufreq: Cleanup: Use printk_once acpi-cpufreq: style-only: add parens to math expression acpi-cpufreq: Do not let get_measured perf depend on internal variable Zhang Rui (3): ACPI: Revert conflicting workaround for BIOS w/ mangled PRT entries ACPI video: handle indexed _BQC correctly ACPI video: fix an error when the brightness levels on AC and on Battery are same with this log: commit 042ff65872b4c75b26827a5bc95545375f84ee8a Merge: a76750c d68b597 Author: Len Brown <len.brown@xxxxxxxxx> Date: Fri Apr 24 01:38:22 2009 -0400 Merge branch 'bjorn.button' into release commit a76750c596d3947f5a19a1073faca502ab1ccc67 Merge: 31bf1f9 a38d75f Author: Len Brown <len.brown@xxxxxxxxx> Date: Fri Apr 24 01:38:15 2009 -0400 Merge branch 'bugzilla-13036' into release commit 31bf1f944bf861338c34c9ab116e0e65e7fe6766 Merge: fca0f58 b7f0ab4 Author: Len Brown <len.brown@xxxxxxxxx> Date: Fri Apr 24 01:38:08 2009 -0400 Merge branch 'bugzilla-13048' into release commit fca0f58060c36739553566cffd55e2e39ab86c2c Merge: 75e9c05 615dfd9 Author: Len Brown <len.brown@xxxxxxxxx> Date: Fri Apr 24 01:38:01 2009 -0400 Merge branch 'bugzilla-13142' into release commit 75e9c055e926c757a909e5f847c0bfeffe5fdf54 Merge: 6a33e55 f4b9c75 Author: Len Brown <len.brown@xxxxxxxxx> Date: Fri Apr 24 01:37:49 2009 -0400 Merge branch 'hpet' into release commit 6a33e5590fab46244e4a79ac52a118d795b14400 Merge: 2d40570 4b10fee2 Author: Len Brown <len.brown@xxxxxxxxx> Date: Fri Apr 24 01:37:41 2009 -0400 Merge branch 'i915' into release commit 2d40570786c7c208539c65893818119557327ba0 Merge: 04a2e62 e047cca Author: Len Brown <len.brown@xxxxxxxxx> Date: Fri Apr 24 01:35:46 2009 -0400 Merge branch 'bugzilla-12249' into release commit 04a2e6297df5ff04ddfbd6f2bdeefc218195ce96 Merge: ac0849f 82babbb Author: Len Brown <len.brown@xxxxxxxxx> Date: Fri Apr 24 01:35:33 2009 -0400 Merge branch 'bugzilla-12270' into release commit ac0849fb6c66ca865270fda32bcbc39f6dd52de1 Merge: 09041da 96f15ef Author: Len Brown <len.brown@xxxxxxxxx> Date: Fri Apr 24 01:35:24 2009 -0400 Merge branch 'bugzilla-13041' into release commit 09041daeea467090f57507473a3ec8ec0e68be6d Merge: f752a09 d876dfb Author: Len Brown <len.brown@xxxxxxxxx> Date: Fri Apr 24 01:35:15 2009 -0400 Merge branch 'cpufreq' into release commit f752a091abd1f9d38f926823bfd5c8480dd1132b Merge: 6e6c348 9261461 Author: Len Brown <len.brown@xxxxxxxxx> Date: Fri Apr 24 01:35:08 2009 -0400 Merge branch 'idle' into release commit 6e6c348fb23122c6faf89ef10f1b9f034dba0da5 Merge: 7f3745a 88bea18 Author: Len Brown <len.brown@xxxxxxxxx> Date: Fri Apr 24 01:34:59 2009 -0400 Merge branch 'irq' into release commit 7f3745ad7aca48b946136e3173861821fa8b24c5 Merge: 771e5ce 53005a0 Author: Len Brown <len.brown@xxxxxxxxx> Date: Fri Apr 24 01:34:52 2009 -0400 Merge branch 'sony-laptop' into release commit 771e5ce3bd96f315e213f6263e40b2b2ee7e5201 Merge: 7b80601 6740543 Author: Len Brown <len.brown@xxxxxxxxx> Date: Fri Apr 24 01:34:45 2009 -0400 Merge branch 'thermal-regression' into release commit 7b806016b14532b4206b81ba16062cf82c68e430 Merge: 60cd8ad b57f7e7 Author: Len Brown <len.brown@xxxxxxxxx> Date: Fri Apr 24 01:34:37 2009 -0400 Merge branch 'thinkpad-acpi' into release commit 60cd8adc6bfddd5139a4400ba5127863f0381dac Merge: 0910697 90af2cf Author: Len Brown <len.brown@xxxxxxxxx> Date: Fri Apr 24 01:34:29 2009 -0400 Merge branch 'video-ac-dc' into release commit b7f0ab460f772b09a9c664d746236a280fec714c Author: Matthew Garrett <mjg59@xxxxxxxxxxxxx> Date: Wed Apr 15 21:46:36 2009 +0100 ACPI, i915: Register ACPI video even when not modesetting The ACPI video driver defers registration to the i915 driver if the system supports opregion-mediated backlight control. This registration was only being performed in the KMS case. Ensure it's done even if we don't have modesetting enabled. http://bugzilla.kernel.org/show_bug.cgi?id=13048 Signed-off-by: Matthew Garrett <mjg@xxxxxxxxxx> Signed-off-by: Len Brown <len.brown@xxxxxxxxx> commit a38d75fa2e48d4960b656eac39bc8a6b584a83c0 Author: Len Brown <len.brown@xxxxxxxxx> Date: Fri Apr 24 00:32:52 2009 -0400 Revert "ACPICA: delete check for AML access to port 0x81-83" This reverts commit fdbdc7fc79c02ae4ede869d514179a2c65633d28. That temporary quick-fix is no longer necessary, as the previous patch, a65131e942e25c707a652fa4ec2cfcd8b63fec11, "I/O port protection: update for windows compatibility" should handle this issue for all ports, including this one. Signed-off-by: Len Brown <len.brown@xxxxxxxxx> commit a65131e942e25c707a652fa4ec2cfcd8b63fec11 Author: Lin Ming <ming.m.lin@xxxxxxxxx> Date: Thu Apr 16 15:18:16 2009 +0800 I/O port protection: update for windows compatibility. For windows compatibility, 1) On a port protection violation, simply ignore the request and do not return an exception (allow the control method to continue execution.) 2) If only part of the request overlaps a protected port, read/write the individual ports that are not protected. http://bugzilla.kernel.org/show_bug.cgi?id=13036 Signed-off-by: Lin Ming <ming.m.lin@xxxxxxxxx> Signed-off-by: Bob Moore <robert.moore@xxxxxxxxx> Signed-off-by: Len Brown <len.brown@xxxxxxxxx> commit 53005a0a1b53bda5810c45efe3025d1884aa6bb3 Author: Mattia Dongili <malattia@xxxxxxxx> Date: Sun Apr 12 11:26:31 2009 +0000 sony-laptop: always try to unblock rfkill on load This fixes an inconsistent behaviour when loading the driver with the switch on or off. In the former case you would also need to soft unblock the switch via the sysfs file entries to really disable rfkill, in the latter you wouldn't. Signed-off-by: Mattia Dongili <malattia@xxxxxxxx> Cc: Matthias Welwarsky <matze@xxxxxxxxxxxx> Acked-by: Matthew Garrett <mjg@xxxxxxxxxx> Signed-off-by: Len Brown <len.brown@xxxxxxxxx> commit c35d4b3532ed3e2076fb14c25385cf6cef41cc69 Author: Mattia Dongili <malattia@xxxxxxxx> Date: Sun Apr 12 11:26:30 2009 +0000 sony-laptop: fix bogus error message display on resume sony_backlight_update_status returns 0 on success -1 on failure (i.e.: the return value from acpi_callsetfunc. The return value in the resume path was broken and thus always displaying a bogus warning about not being able to restore the brightness level. Signed-off-by: Mattia Dongili <malattia@xxxxxxxx> Signed-off-by: Len Brown <len.brown@xxxxxxxxx> commit 5aa63f038f042fd1acd6e720a95df72857db0bc7 Author: Almer S. Tigelaar <almer@xxxxxxxxx> Date: Sun Apr 12 11:26:29 2009 +0000 ACPI: EC: Fix ACPI EC resume non-query interrupt message When resuming from standby (on a laptop) I see the following message in my kernel.log: "ACPI: EC: non-query interrupt received, switching to interrupt mode" This apparently prevented sony-laptop to properly restore the brightness level on resume. The cause: In drivers/acpi/ec.c the acpi_ec_suspend function clears the GPE mode bit, but this is not restored in acpi_ec_resume (the function below it). The patch below fixes this by properly restoring the GPE_MODE bit. Tested and confirmed to work. Signed-off-by: Almer S. Tigelaar <almer@xxxxxxxxx> Signed-off-by: Mattia Dongili <malattia@xxxxxxxx> Acked-by: Alexey Starikovskiy <astarikovskiy@xxxxxxx> Signed-off-by: Len Brown <len.brown@xxxxxxxxx> commit a83021a229016f93b4e532d9cef21b01be5a8bb7 Author: Almer S. Tigelaar <almer@xxxxxxxxx> Date: Sun Apr 12 11:26:28 2009 +0000 sony-laptop: SNC input event 38 fix Fixes the "unknown input event 38" messages. ANYBUTTON_RELEASED is now treated the same way as FN_KEY_RELEASED. Signed-off-by: Almer S. Tigelaar <almer@xxxxxxxxx> Signed-off-by: Mattia Dongili <malattia@xxxxxxxx> Signed-off-by: Len Brown <len.brown@xxxxxxxxx> commit 560e84ac1b92d2a704fbfda29b46ad1b0a8d457e Author: Almer S. Tigelaar <almer@xxxxxxxxx> Date: Sun Apr 12 11:26:27 2009 +0000 sony-laptop: SNC 127 Initialization Fix Fixes additional special key initialization for SNC 127 key events. Verified / tested on a Sony VAIO SR model. Signed-off-by: Almer S. Tigelaar <almer@xxxxxxxxx> Signed-off-by: Mattia Dongili <malattia@xxxxxxxx> Signed-off-by: Len Brown <len.brown@xxxxxxxxx> commit 226fced325e2865369cbeac41c6a97536d4daa1b Author: Almer S. Tigelaar <almer@xxxxxxxxx> Date: Sun Apr 12 11:26:26 2009 +0000 sony-laptop: Duplicate SNC 127 Event Fix Fixes a duplicate mapping in the SNC sony_127_events structure. Signed-off-by: Almer S. Tigelaar <almer@xxxxxxxxx> Signed-off-by: Mattia Dongili <malattia@xxxxxxxx> Signed-off-by: Len Brown <len.brown@xxxxxxxxx> commit 615dfd93e2346b604232b559e7ea0835d24abe26 Author: Len Brown <len.brown@xxxxxxxxx> Date: Thu Apr 23 23:21:29 2009 -0400 ACPI: prevent processor.max_cstate=0 boot crash As processor.max_cstate is an init-time-only modparam, sanity checking it at init-time is sufficient. http://bugzilla.kernel.org/show_bug.cgi?id=13142 Signed-off-by: Len Brown <len.brown@xxxxxxxxx> commit f4b9c759cb9a6c0f1bc221a7fe617ba5e3555582 Author: Len Brown <len.brown@xxxxxxxxx> Date: Thu Apr 23 19:14:21 2009 -0400 HPET: stop soliciting hpet=force users on ICH4M The HPET in the ICH4M is not documented in the data sheet because it was not officially validated. While it is fine for hackers to continue to use "hpet=force" to enable the hardware that they have, it is not prudent to solicit additional "hpet=force" users on this hardware. Acked-by: Venkatesh Pallipadi <venkatesh.pallipadi@xxxxxxxxx> Signed-off-by: Len Brown <len.brown@xxxxxxxxx> commit f461ddea0af8b98e2b7940eba9c693b0ee44d64a Author: Len Brown <len.brown@xxxxxxxxx> Date: Thu Apr 23 18:59:43 2009 -0400 ACPI/hpet: prevent boot hang when hpet=force used on ICH-4M Linux tells ICH4 users that they can (manually) invoke "hpet=force" to enable the undocumented ICH-4M HPET. The HPET becomes available for both clocksource and clockevents. But as of ff69f2bba67bd45514923aaedbf40fe351787c59 (acpi: fix of pmtimer overflow that make Cx states time incorrect) the HPET may be used via clocksource for idle accounting, and hpet=force on an ICH4 box hangs boot. It turns out that touching the MMIO HPET withing the ARB_DIS part of C3 will hang the hardware. The fix is to simply move the timer access outside the ARB_DIS region. This is a no-op on modern hardware because ARB_DIS is no longer used. http://bugzilla.kernel.org/show_bug.cgi?id=13087 Acked-by: Venkatesh Pallipadi <venkatesh.pallipadi@xxxxxxxxx> Signed-off-by: Len Brown <len.brown@xxxxxxxxx> commit 4b10fee2ec45eae912c2c81730f4eee82e61a247 Author: Matthew Garrett <mjg59@xxxxxxxxxxxxx> Date: Wed Apr 15 21:56:56 2009 +0100 ACPI/i915: build fix CONFIG_DRM_I915=y CONFIG_ACPI_VIDEO=m drivers/built-in.o: In function `intel_opregion_init': (.text+0x9d540): undefined reference to `acpi_video_register' Signed-off-by: Matthew Garrett <mjg59@xxxxxxxxxxxxx> Signed-off-by: Len Brown <len.brown@xxxxxxxxx> commit 92614610774072ea68131f16e024ee8fc15be9be Author: Len Brown <len.brown@xxxxxxxxx> Date: Wed Apr 22 19:28:15 2009 -0400 ACPI: delete obsolete "bus master activity" proc field Linux-2.6.29 deleted the legacy ACPI idle handler, leaving the CPU_IDLE handler, which does not track bus master activity. So delete the unused bm_activity field -- it is confusing to print an always zero value. This patch could break programs that parse /proc/acpi/processor/*/power, since it deletes this line from that file: bus master activity: 00000000 http://bugzilla.kernel.org/show_bug.cgi?id=13145 is not fixed by this patch, but provoked this patch. Signed-off-by: Len Brown <len.brown@xxxxxxxxx> commit a71e4917dc0ebbcb5a0ecb7ca3486643c1c9a6e2 Author: Len Brown <len.brown@xxxxxxxxx> Date: Tue Apr 21 00:50:11 2009 -0400 ACPI: idle: mark_tsc_unstable() at init-time, not run-time The c2 and c3 idle handlers check tsc_halts_in_c() after every time they return from idle. Um, when?:-) Move this check to init-time to remove the unnecessary run-time overhead, and also to have the check complete before the first entry into the idle handler. ff69f2bba67bd45514923aaedbf40fe351787c59 (acpi: fix of pmtimer overflow that make Cx states time incorrect) replaced the hard-coded use of the PM-timer inside idle, with ktime_get_readl(), which possibly uses the TSC -- so it is now especially prudent to detect a broken TSC before entering idle. http://bugzilla.kernel.org/show_bug.cgi?id=13087 Signed-off-by: Len Brown <len.brown@xxxxxxxxx> commit 88bea188b85f9cefefbbd56b8a48d0f798409177 Author: Len Brown <len.brown@xxxxxxxxx> Date: Tue Apr 21 00:35:47 2009 -0400 ACPI: add /sys/firmware/acpi/interrupts/sci_not counter This counter may prove useful in debugging some spurious interrupt issues seen in the field. Signed-off-by: Len Brown <len.brown@xxxxxxxxx> commit 90af2cf6205bfc8def8c5a64c9134031d60b10fb Author: Zhang Rui <rui.zhang@xxxxxxxxx> Date: Tue Apr 14 11:02:18 2009 +0800 ACPI video: fix an error when the brightness levels on AC and on Battery are same when the brightness level on AC and brightness level on Battery are same, the level_ac_battery is 1 in the current code, which is wrong. Signed-off-by: Zhang Rui <rui.zhang@xxxxxxxxx> Signed-off-by: Len Brown <len.brown@xxxxxxxxx> commit d876dfbbf5c8728102fb4f683450fa9ae3259cda Author: Thomas Renninger <trenn@xxxxxxx> Date: Fri Apr 17 16:22:08 2009 +0200 acpi-cpufreq: Do not let get_measured perf depend on internal variable Take already available policy->cpuinfo.max_freq and get rid of acpi-cpufreq specific max_freq variable. This implies that P0 is always the highest frequency which should always be true as ACPI spec says: As a result, the zeroth entry describes the highest performance state Signed-off-by: Thomas Renninger <trenn@xxxxxxx> Acked-by: Venkatesh Pallipadi <venkatesh.pallipadi@xxxxxxxxx> Signed-off-by: Len Brown <len.brown@xxxxxxxxx> commit d91758f5ddb80e91176fa2cf80c88c1633950b3d Author: Thomas Renninger <trenn@xxxxxxx> Date: Fri Apr 17 16:22:07 2009 +0200 acpi-cpufreq: style-only: add parens to math expression Signed-off-by: Thomas Renninger <trenn@xxxxxxx> Signed-off-by: Len Brown <len.brown@xxxxxxxxx> commit e0e8c4e512e92bc25c19bd8d4926de17d2f8fbf2 Author: Thomas Renninger <trenn@xxxxxxx> Date: Fri Apr 17 16:22:06 2009 +0200 acpi-cpufreq: Cleanup: Use printk_once Signed-off-by: Thomas Renninger <trenn@xxxxxxx> Signed-off-by: Len Brown <len.brown@xxxxxxxxx> commit 093f13e23137b9e5f7629dd5932ceea1419e2b61 Author: Pallipadi, Venkatesh <venkatesh.pallipadi@xxxxxxxxx> Date: Wed Apr 15 10:37:33 2009 -0700 x86, acpi_cpufreq: Fix the NULL pointer dereference in get_measured_perf Fix for a regression that was introduced by earlier commit 18b2646fe3babeb40b34a0c1751e0bf5adfdc64c on Mon Apr 6 11:26:08 2009 Regression resulted in the below error happened on systems with software coordination where per_cpu acpi data will not be initiated for secondary CPUs in a P-state domain. On Tue, 2009-04-14 at 23:01 -0700, Zhang, Yanmin wrote: My machine hanged with kernel 2.6.30-rc2 when script read > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor. > > opps happens in get_measured_perf: > > cur.aperf.whole = readin.aperf.whole - > per_cpu(drv_data, cpu)->saved_aperf; > > Because per_cpu(drv_data, cpu)=NULL. > > So function get_measured_perf should check if (per_cpu(drv_data, > cpu)==NULL) > and return 0 if it's NULL. --------------sys log------------------ BUG: unable to handle kernel NULL pointer dereference at 0000000000000020 IP: [<ffffffff8021af75>] get_measured_perf+0x4a/0xf9 PGD a7dd88067 PUD a7ccf5067 PMD 0 Oops: 0000 [#1] SMP last sysfs file: /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor CPU 0 Modules linked in: video output Pid: 2091, comm: kondemand/0 Not tainted 2.6.30-rc2 #1 MP Server RIP: 0010:[<ffffffff8021af75>] [<ffffffff8021af75>] get_measured_perf+0x4a/0xf9 RSP: 0018:ffff880a7d56de20 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 00000046241a42b6 RCX: ffff88004d219000 RDX: 000000000000b660 RSI: 0000000000000020 RDI: 0000000000000001 RBP: ffff880a7f052000 R08: 00000046241a42b6 R09: ffffffff807639f0 R10: 00000000ffffffea R11: ffffffff802207f4 R12: ffff880a7f052000 R13: ffff88004d20e460 R14: 0000000000ddd5a6 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff88004d200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b CR2: 0000000000000020 CR3: 0000000a7f1bf000 CR4: 00000000000006e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process kondemand/0 (pid: 2091, threadinfo ffff880a7d56c000, task ffff880a7d4d18c0) Stack: ffff880a7f052078 ffffffff803efd54 00000046241a42b6 000000462ffa9e95 0000000000000001 0000000000000001 00000000ffffffea ffffffff8064f41a 0000000000000012 0000000000000012 ffff880a7f052000 ffffffff80650547 Call Trace: [<ffffffff803efd54>] ? kobject_get+0x12/0x17 [<ffffffff8064f41a>] ? __cpufreq_driver_getavg+0x42/0x57 [<ffffffff80650547>] ? do_dbs_timer+0x147/0x272 [<ffffffff80650400>] ? do_dbs_timer+0x0/0x272 [<ffffffff802474ca>] ? worker_thread+0x15b/0x1f5 [<ffffffff8024a02c>] ? autoremove_wake_function+0x0/0x2e [<ffffffff8024736f>] ? worker_thread+0x0/0x1f5 [<ffffffff80249f0d>] ? kthread+0x54/0x83 [<ffffffff8020c87a>] ? child_rip+0xa/0x20 [<ffffffff80249eb9>] ? kthread+0x0/0x83 [<ffffffff8020c870>] ? child_rip+0x0/0x20 Code: 99 a6 03 00 31 c9 85 c0 0f 85 c3 00 00 00 89 df 4c 8b 44 24 10 48 c7 c2 60 b6 00 00 48 8b 0c fd e0 30 a5 80 4c 89 c3 48 8b 04 0a <48> 2b 58 20 48 8b 44 24 18 48 89 1c 24 48 8b 34 0a 48 2b 46 28 RIP [<ffffffff8021af75>] get_measured_perf+0x4a/0xf9 RSP <ffff880a7d56de20> CR2: 0000000000000020 ---[ end trace 2b8fac9a49e19ad4 ]--- Tested-by: "Zhang, Yanmin" <yanmin_zhang@xxxxxxxxxxxxxxx> Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@xxxxxxxxx> Signed-off-by: Len Brown <len.brown@xxxxxxxxx> commit b57f7e7b836d271902b8b7b1ec8cf9312dc5d228 Author: Henrique de Moraes Holschuh <hmh@xxxxxxxxxx> Date: Tue Apr 14 02:44:14 2009 +0000 thinkpad-acpi: bump up version to 0.23 Plenty of high-profile changes, so it deserves a new version number. Features added since 0.22: * Restrict unsafe LEDs * New race-less brightness control strategy for IBM ThinkPads * Disclose TGID of driver access from userspace (debug) * Warn when deprecated functions are used Other changes: * Better debug messages in some subdrivers * Removed "hotkey disable" support, since it breaks the driver * Dropped "ibm-acpi" alias Signed-off-by: Henrique de Moraes Holschuh <hmh@xxxxxxxxxx> Signed-off-by: Len Brown <len.brown@xxxxxxxxx> commit 922fe097b1e8f2f2f23dbed61cfe6e0316fecff1 Author: Henrique de Moraes Holschuh <hmh@xxxxxxxxxx> Date: Tue Apr 14 02:44:13 2009 +0000 thinkpad-acpi: simplify module autoloading Simplify the module autoloading a great deal, by keying to the HID for the HKEY interface. Only _really_ ancient IBM ThinkPad models like the 240, 240x and 570 lack the HKEY interface, and they're getting their own trimmed-down driver one of these days. Signed-off-by: Henrique de Moraes Holschuh <hmh@xxxxxxxxxx> Signed-off-by: Len Brown <len.brown@xxxxxxxxx> commit f68f53a217b827580647d23fdc34eecdcb3739c6 Author: Henrique de Moraes Holschuh <hmh@xxxxxxxxxx> Date: Tue Apr 14 02:44:12 2009 +0000 thinkpad-acpi: fix use of MODULE_AUTHOR Fix the module to use one instance of MODULE_AUTHOR per author. Signed-off-by: Henrique de Moraes Holschuh <hmh@xxxxxxxxxx> Signed-off-by: Len Brown <len.brown@xxxxxxxxx> commit 75bd3bf2ade9d548be0d2bde60b5ee0fdce0b127 Author: Henrique de Moraes Holschuh <hmh@xxxxxxxxxx> Date: Tue Apr 14 02:44:11 2009 +0000 thinkpad-acpi: fix LED blinking through timer trigger The set_blink hook code in the LED subdriver would never manage to get a LED to blink, and instead it would just turn it on. The consequence of this is that the "timer" trigger would not cause the LED to blink if given default parameters. This problem exists since 2.6.26-rc1. To fix it, switch the deferred LED work handling to use the thinkpad-acpi-specific LED status (off/on/blink) directly. This also makes the code easier to read, and to extend later. Signed-off-by: Henrique de Moraes Holschuh <hmh@xxxxxxxxxx> Cc: stable@xxxxxxxxxx Signed-off-by: Len Brown <len.brown@xxxxxxxxx> commit 406e988bef742aa74cdc1f5fafc812ecebf7c02b Author: Henrique de Moraes Holschuh <hmh@xxxxxxxxxx> Date: Tue Apr 14 02:44:10 2009 +0000 thinkpad-acpi: silence hotkey enable warning for module parameter Avoid the WARN() when the procfs handler for hotkey enable is used by a module parameter. Instead, urge the user to stop doing that. Reported-by: Niel Lambrechts <niel.lambrechts@xxxxxxxxx> Signed-off-by: Henrique de Moraes Holschuh <hmh@xxxxxxxxxx> Signed-off-by: Len Brown <len.brown@xxxxxxxxx> commit 67405439bca28c4dbecd3fefd97fbdb282a302d9 Author: Matthew Garrett <mjg59@xxxxxxxxxxxxx> Date: Tue Apr 14 20:16:45 2009 +0100 thermal: Fix polling frequency for systems without passive cooling The polling interval (in deciseconds) was accidently interpreted as being in milliseconds in one codepath, resulting in excessively frequent polling. Ensure that the conversion is performed. Signed-off-by: Matthew Garrett <mjg@xxxxxxxxxx> Acked-by: Zhang Rui <rui.zhang@xxxxxxxxx> Signed-off-by: Len Brown <len.brown@xxxxxxxxx> commit 96f15efcea94545987715f453a8c2b8ea592d000 Author: Len Brown <len.brown@xxxxxxxxx> Date: Fri Apr 17 23:32:20 2009 -0400 ACPI: Disable _GTS and _BFS support by default Executing BIOS code paths not exercised by Windows tends to get Linux into trouble. However, if a system does benefit from _GTS or _BFS, acpi.gts=1 an acpi.bfs=1 are now available to enable them. http://bugzilla.kernel.org/show_bug.cgi?id=13041 Signed-off-by: Len Brown <len.brown@xxxxxxxxx> commit e047cca66c6bb0b1c346e91305011aab79dfc4b0 Author: Zhang Rui <rui.zhang@xxxxxxxxx> Date: Thu Apr 9 14:24:35 2009 +0800 ACPI video: handle indexed _BQC correctly In the current code, for a box with an indexed _BQC method, we 1. get the current brightness level by evaluating _BQC 2. set the value gotten in step 1 to _BCM 3. get the current brightness level again 4. set the _BQC_use_index flag if the results gotten in step 1 and in step 3 don't equal. But this logic doesn't work actually, because the _BQC_use_index is not set when acpi_video_device_lcd_set_level is invoked. This results in a failure in step 2. http://bugzilla.kernel.org/show_bug.cgi?id=12249#c83 Now, we set the _BQC_use_index flag after invoking _BQC for the first time. And reevaluate the _BQC to get the correct brightness level. Signed-off-by: Zhang Rui <rui.zhang@xxxxxxxxx> Signed-off-by: Len Brown <len.brown@xxxxxxxxx> commit 82babbb3887e234c995626e4121d411ea9070ca5 Author: Zhang Rui <rui.zhang@xxxxxxxxx> Date: Wed Apr 8 09:44:29 2009 +0800 ACPI: Revert conflicting workaround for BIOS w/ mangled PRT entries 2f894ef9c8b36a35d80709bedca276d2fc691941 in Linux-2.6.21 worked around BIOS with mangled _PRT entries: http://bugzilla.kernel.org/show_bug.cgi?id=6859 d0e184abc5983281ef189db2c759d65d56eb1b80 worked around the same issue via ACPICA, and shipped in 2.6.27. Unfortunately the two workarounds conflict: http://bugzilla.kernel.org/show_bug.cgi?id=12270 So revert the Linux specific one. Signed-off-by: Zhang Rui <rui.zhang@xxxxxxxxx> Signed-off-by: Len Brown <len.brown@xxxxxxxxx> commit d68b597c883cf863c7216564cae08a4730d56cc1 Author: Bjorn Helgaas <bjorn.helgaas@xxxxxx> Date: Wed Apr 8 15:40:04 2009 +0000 ACPI: button: remove control method/fixed hardware distinctions This patch removes the driver distinction between control method (CM) and fixed hardware (FF) buttons. We previously needed that so we could install either a fixed event handler or a notify handler, but the Linux/ACPI code now handles that for us, so we don't need to worry about it. Note that this removes the FF/CM annotation from the "info" files in /proc. For example, /proc/acpi/button/PWRF/info: -type: Power Button (FF) +type: Power Button I don't think there's anything meaningful user-space can do by knowing whether a button is a control method or a fixed hardware button, so nobody should be looking at the FF/CM. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@xxxxxx> Signed-off-by: Len Brown <len.brown@xxxxxxxxx> commit 106c19e7b978e1b84ea5cabbd470a0ddced577c8 Author: Bjorn Helgaas <bjorn.helgaas@xxxxxx> Date: Wed Apr 8 15:39:59 2009 +0000 ACPI: button: remove button->device pointer We no longer need a pointer from struct acpi_button back to the struct acpi_device. Everywhere we used that pointer, we either already have, or can easily get, the acpi_device pointer without using the copy from acpi_button. So this patch removes the structure element. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@xxxxxx> Signed-off-by: Len Brown <len.brown@xxxxxxxxx> commit bf04a77227db76f163bc2355ef4e176794987be2 Author: Bjorn Helgaas <bjorn.helgaas@xxxxxx> Date: Wed Apr 8 15:39:54 2009 +0000 ACPI: button: cache hid/name/class pointers This patch adds temporaries to cache the acpi_device_hid(), acpi_device_name(), and acpi_device_class() pointers so we don't have to clutter the code with so many uses of those interfaces. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@xxxxxx> Signed-off-by: Len Brown <len.brown@xxxxxxxxx> commit 1bce81131c71064bc3163078f24545b839a31967 Author: Bjorn Helgaas <bjorn.helgaas@xxxxxx> Date: Wed Apr 8 15:39:49 2009 +0000 ACPI: button: use Linux style for getting driver_data It's typical and slightly more compact to look up the driver_data structure by initializing the automatic variable at its definition. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@xxxxxx> Signed-off-by: Len Brown <len.brown@xxxxxxxxx> commit e2fb9754d27513918a4936e8cbaad50ff56cfd3d Author: Bjorn Helgaas <bjorn.helgaas@xxxxxx> Date: Wed Apr 8 15:39:43 2009 +0000 ACPI: button: remove unnecessary null pointer checks Better to oops and learn about a bug than to silently cover it up. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@xxxxxx> Signed-off-by: Len Brown <len.brown@xxxxxxxxx> commit 50a4da890102a455e5cd3dd358c38650d07178d3 Author: Bjorn Helgaas <bjorn.helgaas@xxxxxx> Date: Wed Apr 8 15:39:38 2009 +0000 ACPI: button: whitespace changes This patch changes a bit of whitespace to follow Linux conventions. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@xxxxxx> Signed-off-by: Len Brown <len.brown@xxxxxxxxx>
