| Commit message (Collapse) | Author | Age | Files | Lines |
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Mark volume_alsa_control_vol and volume_alsa_control_mute as __initdata,
as snd_ctl_new1() will copy the relevant parts, so there is no need to
keep the master copies around after initialization.
Signed-off-by: Mathias Krause <minipli@googlemail.com>
Cc: Henrique de Moraes Holschuh <ibm-acpi@hmh.eng.br>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
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Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=80231
Reported-by: David Binderman <dcb314@hotmail.com>
Signed-off-by: Andrey Utkin <andrey.krieger.utkin@gmail.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
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The new keyboard found on the *40 models is also being sold as a standalone
keyboard (with trackpoint):
http://shop.lenovo.com/us/en/itemdetails/0B47189/460/60AC6A0372B14F5BA7B12F1FF88E33C7
This uses a standard HUT code for the F12 key with the 6 square boxes on it,
which gets mapped to KEY_FILE by the kernel. Change the mapping done of
identical laptop key done by thinkpad_acpi to also send KEY_FILE for
consistency.
Cc: Jamie Lentin <jm@lentin.co.uk>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
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The T440s user guide says that when Fn-lock is not active, the *40s' F9 - F12
keys should be mapped to: control-panel, search, show-all-windows and Computer.
These keys generate the sofar unused 28 - 31 hotkey scancodes.
For the first 2 this nicely matches the icons on the keys, for the latter 2
the icons are somewhat creative, which is why I ended up looking them up in
the user manual.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
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The only real change is passing in event_mask to the formerly nested functions.
Otherwise it's just moving around function and macro code.
This is the only place in the Linux kernel where nested functions are still in
use. Nested functions aren't part of the C standards, and complicate the
generated code. Although the Linux Kernel has never set out to be entirely C
standard compliant, it is increasingly compliant to the standard which is
supported by other compilers such as Clang. The LLVMLinux project is working on
being able to compile the Linux kernel with Clang. The use of nested functions
blocks this effort.
Signed-off-by: Behan Webster <behanw@converseincode.com>
Signed-off-by: Jan-Simon Möller <dl9pf@gmx.de>
CC: David Woodhouse <David.Woodhouse@intel.com>
CC: Matthew Garrett <matthew.garrett@nebula.com>
CC: ibm-acpi-devel@lists.sourceforge.net
CC: platform-driver-x86@vger.kernel.org
CC: linux-kernel@vger.kernel.org
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
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Dan Aloni has submitted a patch to set adaptive mode to function mode
when system resume back. Thanks Dan. :)
Following patch can make it to be restored to previous mode like What
Windows does.
Thanks,
Shuduo
>From 0ca960138518ceab23110141a0d7c0cafd54a859 Mon Sep 17 00:00:00 2001
From: Shuduo Sang <shuduo.sang@canonical.com>
Date: Thu, 27 Mar 2014 17:51:24 +0800
Subject: [PATCH] save and restore adaptive keyboard mode for suspend and
resume
The mode of adaptive keyboard on X1 Carbon need be saved first before
suspend then it can be restored after resume. Otherwise it will be
unusable.
Signed-off-by: Bruce Ma <bruce.ma@canonical.com>
Signed-off-by: Shuduo Sang <shuduo.sang@canonical.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
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Submit patch V4 to support Adaptive Keyboard on Thinkpad X1 Carbon 2nd
generation according to Tobias's comments.
Thanks,
Shuduo
>From b153a7b14791c6e01892c0e274e23eefd625fb8d Mon Sep 17 00:00:00 2001
From: Shuduo Sang <shuduo.sang@canonical.com>
Date: Mon, 3 Mar 2014 14:29:32 +0800
Subject: [PATCH] support thinkpad X1 Carbon's adaptive keyboard
Thinkpad X1 Carbon's adaptive keyboard has five modes including Home
mode, Web browser mode, Web conference mode, Function mode and Lay-flat
mode. We support Home mode and Function mode currently.
Signed-off-by: Bruce Ma <bruce.ma@canonical.com>
Signed-off-by: Shuduo Sang <shuduo.sang@canonical.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
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The mute LED states have to be restored after resume.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=70351
Cc: <stable@vger.kernel.org> [v3.13+]
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
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Also remove superfluous snd_card_set_dev() calls.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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* acpi-cleanup: (22 commits)
ACPI / tables: Return proper error codes from acpi_table_parse() and fix comment.
ACPI / tables: Check if id is NULL in acpi_table_parse()
ACPI / proc: Include appropriate header file in proc.c
ACPI / EC: Remove unused functions and add prototype declaration in internal.h
ACPI / dock: Include appropriate header file in dock.c
ACPI / PCI: Include appropriate header file in pci_link.c
ACPI / PCI: Include appropriate header file in pci_slot.c
ACPI / EC: Mark the function acpi_ec_add_debugfs() as static in ec_sys.c
ACPI / NVS: Include appropriate header file in nvs.c
ACPI / OSL: Mark the function acpi_table_checksum() as static
ACPI / processor: initialize a variable to silence compiler warning
ACPI / processor: use ACPI_COMPANION() to get ACPI device
ACPI: correct minor typos
ACPI / sleep: Drop redundant acpi_disabled check
ACPI / dock: Drop redundant acpi_disabled check
ACPI / table: Replace '1' with specific error return values
ACPI: remove trailing whitespace
ACPI / IBFT: Fix incorrect <acpi/acpi.h> inclusion in iSCSI boot firmware module
ACPI / i915: Fix incorrect <acpi/acpi.h> inclusions via <linux/acpi_io.h>
SFI / ACPI: Fix warnings reported during builds with W=1
...
Conflicts:
drivers/acpi/nvs.c
drivers/hwmon/asus_atk0110.c
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Replace direct inclusions of <acpi/acpi.h>, <acpi/acpi_bus.h> and
<acpi/acpi_drivers.h>, which are incorrect, with <linux/acpi.h>
inclusions and remove some inclusions of those files that aren't
necessary.
First of all, <acpi/acpi.h>, <acpi/acpi_bus.h> and <acpi/acpi_drivers.h>
should not be included directly from any files that are built for
CONFIG_ACPI unset, because that generally leads to build warnings about
undefined symbols in !CONFIG_ACPI builds. For CONFIG_ACPI set,
<linux/acpi.h> includes those files and for CONFIG_ACPI unset it
provides stub ACPI symbols to be used in that case.
Second, there are ordering dependencies between those files that always
have to be met. Namely, it is required that <acpi/acpi_bus.h> be included
prior to <acpi/acpi_drivers.h> so that the acpi_pci_root declarations the
latter depends on are always there. And <acpi/acpi.h> which provides
basic ACPICA type declarations should always be included prior to any other
ACPI headers in CONFIG_ACPI builds. That also is taken care of including
<linux/acpi.h> as appropriate.
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Matthew Garrett <mjg59@srcf.ucam.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com> (drivers/pci stuff)
Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> (Xen stuff)
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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SNDRV_CARDS can be specified via Kconfig since 3.11 kernel, so this
can be over 32bit integer range, which leads to a build error.
Cc: <stable@vger.kernel.org> [v3.11+]
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
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Emitting an OOM message isn't necessary after input_allocate_device
as there's a generic OOM and a dump_stack already done.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI and power management updates from Rafael J Wysocki:
- New power capping framework and the the Intel Running Average Power
Limit (RAPL) driver using it from Srinivas Pandruvada and Jacob Pan.
- Addition of the in-kernel switching feature to the arm_big_little
cpufreq driver from Viresh Kumar and Nicolas Pitre.
- cpufreq support for iMac G5 from Aaro Koskinen.
- Baytrail processors support for intel_pstate from Dirk Brandewie.
- cpufreq support for Midway/ECX-2000 from Mark Langsdorf.
- ARM vexpress/TC2 cpufreq support from Sudeep KarkadaNagesha.
- ACPI power management support for the I2C and SPI bus types from Mika
Westerberg and Lv Zheng.
- cpufreq core fixes and cleanups from Viresh Kumar, Srivatsa S Bhat,
Stratos Karafotis, Xiaoguang Chen, Lan Tianyu.
- cpufreq drivers updates (mostly fixes and cleanups) from Viresh
Kumar, Aaro Koskinen, Jungseok Lee, Sudeep KarkadaNagesha, Lukasz
Majewski, Manish Badarkhe, Hans-Christian Egtvedt, Evgeny Kapaev.
- intel_pstate updates from Dirk Brandewie and Adrian Huang.
- ACPICA update to version 20130927 includig fixes and cleanups and
some reduction of divergences between the ACPICA code in the kernel
and ACPICA upstream in order to improve the automatic ACPICA patch
generation process. From Bob Moore, Lv Zheng, Tomasz Nowicki, Naresh
Bhat, Bjorn Helgaas, David E Box.
- ACPI IPMI driver fixes and cleanups from Lv Zheng.
- ACPI hotplug fixes and cleanups from Bjorn Helgaas, Toshi Kani, Zhang
Yanfei, Rafael J Wysocki.
- Conversion of the ACPI AC driver to the platform bus type and
multiple driver fixes and cleanups related to ACPI from Zhang Rui.
- ACPI processor driver fixes and cleanups from Hanjun Guo, Jiang Liu,
Bartlomiej Zolnierkiewicz, Mathieu Rhéaume, Rafael J Wysocki.
- Fixes and cleanups and new blacklist entries related to the ACPI
video support from Aaron Lu, Felipe Contreras, Lennart Poettering,
Kirill Tkhai.
- cpuidle core cleanups from Viresh Kumar and Lorenzo Pieralisi.
- cpuidle drivers fixes and cleanups from Daniel Lezcano, Jingoo Han,
Bartlomiej Zolnierkiewicz, Prarit Bhargava.
- devfreq updates from Sachin Kamat, Dan Carpenter, Manish Badarkhe.
- Operation Performance Points (OPP) core updates from Nishanth Menon.
- Runtime power management core fix from Rafael J Wysocki and update
from Ulf Hansson.
- Hibernation fixes from Aaron Lu and Rafael J Wysocki.
- Device suspend/resume lockup detection mechanism from Benoit Goby.
- Removal of unused proc directories created for various ACPI drivers
from Lan Tianyu.
- ACPI LPSS driver fix and new device IDs for the ACPI platform scan
handler from Heikki Krogerus and Jarkko Nikula.
- New ACPI _OSI blacklist entry for Toshiba NB100 from Levente Kurusa.
- Assorted fixes and cleanups related to ACPI from Andy Shevchenko, Al
Stone, Bartlomiej Zolnierkiewicz, Colin Ian King, Dan Carpenter,
Felipe Contreras, Jianguo Wu, Lan Tianyu, Yinghai Lu, Mathias Krause,
Liu Chuansheng.
- Assorted PM fixes and cleanups from Andy Shevchenko, Thierry Reding,
Jean-Christophe Plagniol-Villard.
* tag 'pm+acpi-3.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (386 commits)
cpufreq: conservative: fix requested_freq reduction issue
ACPI / hotplug: Consolidate deferred execution of ACPI hotplug routines
PM / runtime: Use pm_runtime_put_sync() in __device_release_driver()
ACPI / event: remove unneeded NULL pointer check
Revert "ACPI / video: Ignore BIOS initial backlight value for HP 250 G1"
ACPI / video: Quirk initial backlight level 0
ACPI / video: Fix initial level validity test
intel_pstate: skip the driver if ACPI has power mgmt option
PM / hibernate: Avoid overflow in hibernate_preallocate_memory()
ACPI / hotplug: Do not execute "insert in progress" _OST
ACPI / hotplug: Carry out PCI root eject directly
ACPI / hotplug: Merge device hot-removal routines
ACPI / hotplug: Make acpi_bus_hot_remove_device() internal
ACPI / hotplug: Simplify device ejection routines
ACPI / hotplug: Fix handle_root_bridge_removal()
ACPI / hotplug: Refuse to hot-remove all objects with disabled hotplug
ACPI / scan: Start matching drivers after trying scan handlers
ACPI: Remove acpi_pci_slot_init() headers from internal.h
ACPI / blacklist: fix name of ThinkPad Edge E530
PowerCap: Fix build error with option -Werror=format-security
...
Conflicts:
arch/arm/mach-omap2/opp.c
drivers/Kconfig
drivers/spi/spi.c
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The tpacpi_acpi_handle_locate function makes use of acpi_get_devices to
locate handle for ACPI video by HID, the problem is, ACPI video node
doesn't really have HID defined(i.e. no _HID control method is defined
for video device), so.. that function would fail. This can be solved by
enhancing the callback function for acpi_get_devices, where we can use
acpi_device_hid function to check if the ACPI node corresponds to a
video controller.
In addition to that, the _BCL control method only exists under a video
output device node, not a video controller device node. So to evaluate
_BCL, we need the handle of a video output device node, which is child
of the located video controller node from tpacpi_acpi_handle_locate.
The two fix are necessary for some Thinkpad models to emit notification
on backlight hotkey press as a result of evaluation of _BCL.
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Tested-by: Igor Gnatenko <i.gnatenko.brain@gmail.com>
Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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The LEDs are currently not visible to userspace, for security
reasons. They are exported through thinkpad_acpi.h for use by the
snd-hda-intel driver.
Thanks to Alex Hung <alex.hung@canonical.com> and Takashi Iwai
<tiwai@suse.de> for writing parts of this patch.
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Some new Lenovo or ThinkPad laptops don't have EC controllable LEDs,
their LED quirks are 0. This patch set led_supported=TPACPI_LED_NONE
when quirk equals 0.
Signed-off-by: Adam Lee <adam.lee@canonical.com>
Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
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Not all 0-15 LEDs are available for all models, sometimes it's even not
safe. This patch return -NODEV while operating uninitialized LEDs.
Signed-off-by: Adam Lee <adam.lee@canonical.com>
Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
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It is somewhat strange that the default value to support the
depracated interface is set (1).
Anyway this has existed for years. The previous patch already
removed the functionality to still export events through /proc.
Now this param is useless and should vanish too.
Signed-off-by: Thomas Renninger <trenn@suse.de>
Acked-by: Matthew Garrett <matthew.garrett@nebula.com>
Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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It is quite some time that this one has been deprecated.
Get rid of it.
Should some really important user be overseen, it may be reverted and
the userspace program worked on first, but it is time to do something
to get rid of this old stuff...
Signed-off-by: Thomas Renninger <trenn@suse.de>
Acked-by: Matthew Garrett <matthew.garrett@nebula.com>
Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull VFS updates from Al Viro,
Misc cleanups all over the place, mainly wrt /proc interfaces (switch
create_proc_entry to proc_create(), get rid of the deprecated
create_proc_read_entry() in favor of using proc_create_data() and
seq_file etc).
7kloc removed.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (204 commits)
don't bother with deferred freeing of fdtables
proc: Move non-public stuff from linux/proc_fs.h to fs/proc/internal.h
proc: Make the PROC_I() and PDE() macros internal to procfs
proc: Supply a function to remove a proc entry by PDE
take cgroup_open() and cpuset_open() to fs/proc/base.c
ppc: Clean up scanlog
ppc: Clean up rtas_flash driver somewhat
hostap: proc: Use remove_proc_subtree()
drm: proc: Use remove_proc_subtree()
drm: proc: Use minor->index to label things, not PDE->name
drm: Constify drm_proc_list[]
zoran: Don't print proc_dir_entry data in debug
reiserfs: Don't access the proc_dir_entry in r_open(), r_start() r_show()
proc: Supply an accessor for getting the data from a PDE's parent
airo: Use remove_proc_subtree()
rtl8192u: Don't need to save device proc dir PDE
rtl8187se: Use a dir under /proc/net/r8180/
proc: Add proc_mkdir_data()
proc: Move some bits from linux/proc_fs.h to linux/{of.h,signal.h,tty.h}
proc: Move PDE_NET() to fs/proc/proc_net.c
...
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The only part of proc_dir_entry the code outside of fs/proc
really cares about is PDE(inode)->data. Provide a helper
for that; static inline for now, eventually will be moved
to fs/proc, along with the knowledge of struct proc_dir_entry
layout.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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hotkey_kthread() does try_to_freeze() under hotkey_thread_mutex.
We can simply kill this mutex, hotkey_poll_stop_sync() does not need to
serialize with hotkey_kthread(). When kthread_stop() returns the thread
is already dead, it called do_exit()->complete_vfork_done().
Reported-by: Artem Savkov <artem.savkov@gmail.com>
Reported-by: Maciej Rutecki <maciej.rutecki@gmail.com>
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: Matthew Garrett <matthew.garrett@nebula.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Reviewed-by: Mandeep Singh Baines <msb@chromium.org>
Cc: Aaron Lu <aaron.lu@intel.com>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Pull x86 platform driver updates from Matthew Garrett:
"Mostly relatively small updates, along with some hardware enablement
for Sony hardware and a pile of updates to Google's Chromebook driver"
* 'for_linus' of git://cavan.codon.org.uk/platform-drivers-x86: (49 commits)
ideapad-laptop: Depend on BACKLIGHT_CLASS_DEVICE instead of selecting it
ideapad: depends on backlight subsystem and update comment
Platform: x86: chromeos_laptop - add i915 gmbuses to adapter names
Platform: x86: chromeos_laptop - Add isl light sensor for Pixel
Platform: x86: chromeos_laptop - Add a more general add_i2c_device
Platform: x86: chromeos_laptop - Add Pixel Touchscreen
Platform: x86: chromeos_laptop - Add support for probing devices
Platform: x86: chromeos_laptop - Add Pixel Trackpad
hp-wmi: fix handling of platform device
sony-laptop: leak in error handling sony_nc_lid_resume_setup()
hp-wmi: Add support for SMBus hotkeys
asus-wmi: Fix unused function build warning
acer-wmi: avoid the warning of 'devices' may be used uninitialized
drivers/platform/x86/thinkpad_acpi.c: Handle HKEY event 0x6040
Platform: x86: chromeos_laptop - Add HP Pavilion 14
Platform: x86: chromeos_laptop - Add Taos tsl2583 device
Platform: x86: chromeos_laptop - Add Taos tsl2563 device
Platform: x86: chromeos_laptop - Add Acer C7 trackpad
Platform: x86: chromeos_laptop - Rename setup_lumpy_tp to setup_cyapa_smbus_tp
asus-laptop: always report brightness key events
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Handle HKEY event generated on AC power change. The current message
asks users to submit data related to this event which leads to
a lot of confusion and noise on the mailing list.
The following is a list affected models and 'Message-Id'
from ibm-acpi-devel@lists.sourceforge.net of people who saw this
event when either plugging or unplugging the AC adapter or
docking or undocking their laptop.
X120e - CAAAujb5v9dHdbdxDVvhNJoG4UrZC1TgKqeB_zGpAy7q8kZHMEQ@mail.gmail.com
X121e - 20120817143459.GB3462@x1.osrc.amd.com
X220 - Confirmed by Richard Hartmann
X220i - 4F406274.7070807@gmail.com
X220t - 4F489F5B.9040705@cs.tu-berlin.de
X230 - CAKx4u7kqvVH0-gstomsiVYdGC0i6=bGxzaQ8sq9gbg76TGme3w@mail.gmail.com
T420 - 9c848ee30b006737d0534d906bab0cf6@niklaas-baudet.net
T420s - 20120608080824.GS25324@hexapodia.org
W520 - 20121008181050.GF2549@ericlaptop.home.christensenplace.us
Signed-off-by: Richard Hartmann <richih.mailinglist@gmail.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
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The new B series BIOS has version string 43CN46WW. The driver
requires that 2nd and 3rd characters be 'E' and 'T' respectively,
where as the newer BIOS has 'C' and 'N' respectively. Failing to
load the module causes some of the hotkeys to not work.
Before the patch
================
sudo modprobe thinkpad_acpi
FATAL: Error inserting thinkpad_acpi (/lib/modules/3.5.0-15-generic/kernel/drivers/platform/x86/thinkpad_acpi.ko): No such device
After the patch
===============
[44937.265438] thinkpad_acpi: ThinkPad ACPI Extras v0.24
[44937.265445] thinkpad_acpi: http://ibm-acpi.sf.net/
[44937.265449] thinkpad_acpi: ThinkPad BIOS 43CN46WW, EC unknown
[44937.265453] thinkpad_acpi: Lenovo Lenovo B470e, model HuronRiver Platform
[44937.266479] thinkpad_acpi: detected a 8-level brightness capable ThinkPad
[44937.266557] thinkpad_acpi: Standard ACPI backlight interface available, not loading native one
[44937.267846] thinkpad_acpi: Console audio control enabled, mode: monitor (read only)
[44937.268131] input: ThinkPad Extra Buttons as /devices/platform/thinkpad_acpi/input/input17
Signed-off-by: Manoj Iyer <manoj.iyer@canonical.com>
Tested-by: James Ferguson <james.ferguson@canonical.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs pile (part one) from Al Viro:
"Assorted stuff - cleaning namei.c up a bit, fixing ->d_name/->d_parent
locking violations, etc.
The most visible changes here are death of FS_REVAL_DOT (replaced with
"has ->d_weak_revalidate()") and a new helper getting from struct file
to inode. Some bits of preparation to xattr method interface changes.
Misc patches by various people sent this cycle *and* ocfs2 fixes from
several cycles ago that should've been upstream right then.
PS: the next vfs pile will be xattr stuff."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (46 commits)
saner proc_get_inode() calling conventions
proc: avoid extra pde_put() in proc_fill_super()
fs: change return values from -EACCES to -EPERM
fs/exec.c: make bprm_mm_init() static
ocfs2/dlm: use GFP_ATOMIC inside a spin_lock
ocfs2: fix possible use-after-free with AIO
ocfs2: Fix oops in ocfs2_fast_symlink_readpage() code path
get_empty_filp()/alloc_file() leave both ->f_pos and ->f_version zero
target: writev() on single-element vector is pointless
export kernel_write(), convert open-coded instances
fs: encode_fh: return FILEID_INVALID if invalid fid_type
kill f_vfsmnt
vfs: kill FS_REVAL_DOT by adding a d_weak_revalidate dentry op
nfsd: handle vfs_getattr errors in acl protocol
switch vfs_getattr() to struct path
default SET_PERSONALITY() in linux/elf.h
ceph: prepopulate inodes only when request is aborted
d_hash_and_lookup(): export, switch open-coded instances
9p: switch v9fs_set_create_acl() to inode+fid, do it before d_instantiate()
9p: split dropping the acls from v9fs_set_create_acl()
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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
Pull workqueue [delayed_]work_pending() cleanups from Tejun Heo:
"This is part of on-going cleanups to remove / minimize usages of
workqueue interfaces which are deprecated and/or misleading.
This round drops a number of usages of [delayed_]work_pending(), which
are dangerous as they lack any form of synchronization and thus often
lead to buggy / unnecessary code. There are a couple legitimate use
cases in kernel. Hopefully, they can be converted and
[delayed_]work_pending() can be removed completely. Even if not,
removing most of misuses should make it more difficult to find
examples of misuses and thus slow down growth of them.
These changes are independent from other workqueue changes."
* 'for-3.9-cleanups' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
wimax/i2400m: fix i2400m->wake_tx_skb handling
kprobes: fix wait_for_kprobe_optimizer()
ipw2x00: simplify scan_event handling
video/exynos: don't use [delayed_]work_pending()
tty/max3100: don't use [delayed_]work_pending()
x86/mce: don't use [delayed_]work_pending()
rfkill: don't use [delayed_]work_pending()
wl1251: don't use [delayed_]work_pending()
thinkpad_acpi: don't use [delayed_]work_pending()
mwifiex: don't use [delayed_]work_pending()
sja1000: don't use [delayed_]work_pending()
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There's no need to test whether a (delayed) work item in pending
before queueing, flushing or cancelling it. Most uses are unnecessary
and quite a few of them are buggy.
Remove unnecessary pending tests from thinkpad_acpi. Only compile
tested.
Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: ibm-acpi-devel@lists.sourceforge.net
Cc: platform-driver-x86@vger.kernel.org
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CONFIG_HOTPLUG is going away as an option. As a result, the __dev*
markings need to be removed.
This change removes the use of __devinit, __devexit_p, __devinitdata,
__devinitconst, and __devexit from these drivers.
Based on patches originally written by Bill Pemberton, but redone by me
in order to handle some of the coding style issues better, by hand.
Cc: Bill Pemberton <wfp5p@virginia.edu>
Cc: Joey Lee <jlee@novell.com>
Cc: Matthew Garrett <mjg@redhat.com>
Cc: Peter Feuerer <peter@piie.net>
Cc: Corentin Chary <corentin.chary@gmail.com>
Cc: Cezary Jackiewicz <cezary.jackiewicz@gmail.com>
Cc: Robert Gerlach <khnz@gmx.de>
Cc: Ike Panhc <ike.pan@canonical.com>
Cc: Henrique de Moraes Holschuh <ibm-acpi@hmh.eng.br>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Signed-off-by: Andi Kleen <ak@linux.intel.com>
Cc: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Pull workqueue changes from Tejun Heo:
"This is workqueue updates for v3.7-rc1. A lot of activities this
round including considerable API and behavior cleanups.
* delayed_work combines a timer and a work item. The handling of the
timer part has always been a bit clunky leading to confusing
cancelation API with weird corner-case behaviors. delayed_work is
updated to use new IRQ safe timer and cancelation now works as
expected.
* Another deficiency of delayed_work was lack of the counterpart of
mod_timer() which led to cancel+queue combinations or open-coded
timer+work usages. mod_delayed_work[_on]() are added.
These two delayed_work changes make delayed_work provide interface
and behave like timer which is executed with process context.
* A work item could be executed concurrently on multiple CPUs, which
is rather unintuitive and made flush_work() behavior confusing and
half-broken under certain circumstances. This problem doesn't
exist for non-reentrant workqueues. While non-reentrancy check
isn't free, the overhead is incurred only when a work item bounces
across different CPUs and even in simulated pathological scenario
the overhead isn't too high.
All workqueues are made non-reentrant. This removes the
distinction between flush_[delayed_]work() and
flush_[delayed_]_work_sync(). The former is now as strong as the
latter and the specified work item is guaranteed to have finished
execution of any previous queueing on return.
* In addition to the various bug fixes, Lai redid and simplified CPU
hotplug handling significantly.
* Joonsoo introduced system_highpri_wq and used it during CPU
hotplug.
There are two merge commits - one to pull in IRQ safe timer from
tip/timers/core and the other to pull in CPU hotplug fixes from
wq/for-3.6-fixes as Lai's hotplug restructuring depended on them."
Fixed a number of trivial conflicts, but the more interesting conflicts
were silent ones where the deprecated interfaces had been used by new
code in the merge window, and thus didn't cause any real data conflicts.
Tejun pointed out a few of them, I fixed a couple more.
* 'for-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq: (46 commits)
workqueue: remove spurious WARN_ON_ONCE(in_irq()) from try_to_grab_pending()
workqueue: use cwq_set_max_active() helper for workqueue_set_max_active()
workqueue: introduce cwq_set_max_active() helper for thaw_workqueues()
workqueue: remove @delayed from cwq_dec_nr_in_flight()
workqueue: fix possible stall on try_to_grab_pending() of a delayed work item
workqueue: use hotcpu_notifier() for workqueue_cpu_down_callback()
workqueue: use __cpuinit instead of __devinit for cpu callbacks
workqueue: rename manager_mutex to assoc_mutex
workqueue: WORKER_REBIND is no longer necessary for idle rebinding
workqueue: WORKER_REBIND is no longer necessary for busy rebinding
workqueue: reimplement idle worker rebinding
workqueue: deprecate __cancel_delayed_work()
workqueue: reimplement cancel_delayed_work() using try_to_grab_pending()
workqueue: use mod_delayed_work() instead of __cancel + queue
workqueue: use irqsafe timer for delayed_work
workqueue: clean up delayed_work initializers and add missing one
workqueue: make deferrable delayed_work initializer names consistent
workqueue: cosmetic whitespace updates for macro definitions
workqueue: deprecate system_nrt[_freezable]_wq
workqueue: deprecate flush[_delayed]_work_sync()
...
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Convert delayed_work users doing cancel_delayed_work() followed by
queue_delayed_work() to mod_delayed_work().
Most conversions are straight-forward. Ones worth mentioning are,
* drivers/edac/edac_mc.c: edac_mc_workq_setup() converted to always
use mod_delayed_work() and cancel loop in
edac_mc_reset_delay_period() is dropped.
* drivers/platform/x86/thinkpad_acpi.c: No need to remember whether
watchdog is active or not. @fan_watchdog_active and related code
dropped.
* drivers/power/charger-manager.c: Seemingly a lot of
delayed_work_pending() abuse going on here.
[delayed_]work_pending() are unsynchronized and racy when used like
this. I converted one instance in fullbatt_handler(). Please
conver the rest so that it invokes workqueue APIs for the intended
target state rather than trying to game work item pending state
transitions. e.g. if timer should be modified - call
mod_delayed_work(), canceled - call cancel_delayed_work[_sync]().
* drivers/thermal/thermal_sys.c: thermal_zone_device_set_polling()
simplified. Note that round_jiffies() calls in this function are
meaningless. round_jiffies() work on absolute jiffies not delta
delay used by delayed_work.
v2: Tomi pointed out that __cancel_delayed_work() users can't be
safely converted to mod_delayed_work(). They could be calling it
from irq context and if that happens while delayed_work_timer_fn()
is running, it could deadlock. __cancel_delayed_work() users are
dropped.
Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Anton Vorontsov <cbouatmailru@gmail.com>
Acked-by: David Howells <dhowells@redhat.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: Doug Thompson <dougthompson@xmission.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Roland Dreier <roland@kernel.org>
Cc: "John W. Linville" <linville@tuxdriver.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Len Brown <len.brown@intel.com>
Cc: "J. Bruce Fields" <bfields@fieldses.org>
Cc: Johannes Berg <johannes@sipsolutions.net>
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The acpi_evalf() function modifies four bytes of data but in
fan_get_status() we pass a pointer to u8. I have modified the
function to use type checking now.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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In the latest V-series bios DMI_PRODUCT_VERSION does not contain
the string Lenovo or Thinkpad, but is set to the model number, this
causes the thinkpad_acpi module to fail to load. Recognize laptop
as Lenovo using DMI_BIOS_VENDOR instead, which is set to Lenovo.
Test on V490u
=============
== After the patch ==
[ 1350.295757] thinkpad_acpi: ThinkPad ACPI Extras v0.24
[ 1350.295760] thinkpad_acpi: http://ibm-acpi.sf.net/
[ 1350.295761] thinkpad_acpi: ThinkPad BIOS H7ET21WW (1.00 ), EC unknown
[ 1350.295763] thinkpad_acpi: Lenovo LENOVO, model LV5DXXX
[ 1350.296086] thinkpad_acpi: detected a 8-level brightness capable ThinkPad
[ 1350.296694] thinkpad_acpi: radio switch found; radios are enabled
[ 1350.296703] thinkpad_acpi: possible tablet mode switch found; ThinkPad in laptop mode
[ 1350.306466] thinkpad_acpi: rfkill switch tpacpi_bluetooth_sw: radio is unblocked
[ 1350.307082] Registered led device: tpacpi::thinklight
[ 1350.307215] Registered led device: tpacpi::power
[ 1350.307255] Registered led device: tpacpi::standby
[ 1350.307294] Registered led device: tpacpi::thinkvantage
[ 1350.308160] thinkpad_acpi: Standard ACPI backlight interface available, not loading native one
[ 1350.308333] thinkpad_acpi: Console audio control enabled, mode: monitor (read only)
[ 1350.312287] input: ThinkPad Extra Buttons as /devices/platform/thinkpad_acpi/input/input14
== Before the patch ==
sudo modprobe thinkpad_acpi
FATAL: Error inserting thinkpad_acpi (/lib/modules/3.2.0-27-generic/kernel/drivers/platform/x86/thinkpad_acpi.ko): No such device
Test on B485
=============
This patch was also test in a B485 where the thinkpad_acpi module does not
have any issues loading. But, I tested it to make sure this patch does not
break on already functioning models of Lenovo products.
[13486.746359] thinkpad_acpi: ThinkPad ACPI Extras v0.24
[13486.746364] thinkpad_acpi: http://ibm-acpi.sf.net/
[13486.746368] thinkpad_acpi: ThinkPad BIOS HJET15WW(1.01), EC unknown
[13486.746373] thinkpad_acpi: Lenovo Lenovo LB485, model 814TR01
[13486.747300] thinkpad_acpi: detected a 8-level brightness capable ThinkPad
[13486.752435] thinkpad_acpi: rfkill switch tpacpi_bluetooth_sw: radio is unblocked
[13486.752883] Registered led device: tpacpi::thinklight
[13486.752915] thinkpad_acpi: Standard ACPI backlight interface available, not loading native one
[13486.753216] thinkpad_acpi: Console audio control enabled, mode: monitor (read only)
[13486.757147] input: ThinkPad Extra Buttons as /devices/platform/thinkpad_acpi/input/input15
Signed-off-by: Manoj Iyer <manoj.iyer@canonical.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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According to compiler warnings, quite some suspend/resume functions
in platform x86 drivers are not used for CONFIG_PM_SLEEP unset, so
add #ifdefs to prevent them from being built in that case.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
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We should free hotkey_keycode_map after unregistering tpacpi_inputdev, to aviod
use after free like this:
[ 99.408388] =============================================================================
[ 99.408393] BUG kmalloc-64 (Not tainted): Poison overwritten
[ 99.408394] -----------------------------------------------------------------------------
[ 99.408394]
[ 99.408398] INFO: 0xf2751962-0xf2751995. First byte 0x98 instead of 0x6b
[ 99.408402] INFO: Allocated in 0xfdc88c28 age=79 cpu=0 pid=1329
[ 99.408407] __slab_alloc.isra.50.constprop.56+0x49f/0x533
[ 99.408410] kmem_cache_alloc_trace+0x10d/0x140
[ 99.408412] 0xfdc88c28
[ 99.408414] 0xfdc898cc
[ 99.408417] do_one_initcall+0x112/0x160
[ 99.408420] sys_init_module+0xe6d/0x1bc0
[ 99.408422] sysenter_do_call+0x12/0x28
[ 99.408427] INFO: Freed in hotkey_exit+0x50/0xb0 [thinkpad_acpi] age=14 cpu=1 pid=1333
[ 99.408429] __slab_free+0x3d/0x30b
[ 99.408431] kfree+0x129/0x140
[ 99.408435] hotkey_exit+0x50/0xb0 [thinkpad_acpi]
[ 99.408438] ibm_exit+0xe3/0x1a0 [thinkpad_acpi]
[ 99.408441] thinkpad_acpi_module_exit+0x35/0x208 [thinkpad_acpi]
[ 99.408443] sys_delete_module+0x11f/0x280
[ 99.408445] sysenter_do_call+0x12/0x28
[ 99.408447] INFO: Slab 0xf4d5ea20 objects=17 used=17 fp=0x (null) flags=0x40000080
[ 99.408449] INFO: Object 0xf2751960 @offset=2400 fp=0xf2751780
[ 99.408449]
[ 99.408452] Bytes b4 f2751950: 64 02 00 00 ae ce fe ff 5a 5a 5a 5a 5a 5a 5a 5a d.......ZZZZZZZZ
[ 99.408454] Object f2751960: 6b 6b 98 00 ec 00 8e 00 ee 00 6b 6b e3 00 bf 00 kk........kk....
[ 99.408456] Object f2751970: c2 00 6b 6b 6b 6b cd 00 6b 6b 6b 6b 6b 6b e1 00 ..kkkk..kkkkkk..
[ 99.408458] Object f2751980: e0 00 e4 00 6b 6b 74 01 73 00 72 00 71 00 94 00 ....kkt.s.r.q...
[ 99.408460] Object f2751990: 6b 6b 6b 6b f8 00 6b 6b 6b 6b 6b 6b 6b 6b 6b a5 kkkk..kkkkkkkkk.
[ 99.408462] Redzone f27519a0: bb bb bb bb ....
Signed-off-by: Li Dongyang <Jerry87905@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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We should free the thinkpad_id.nummodel_str during exit as it's allocated
in get_thinkpad_module_data().
Signed-off-by: Li Dongyang <Jerry87905@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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We init work_struct within tpacpi_leds, and we should free tpacpi_leds after
the workqueue is empty, in case of the work_struct is referenced after free.
This script could trigger the OOPS:
#!/bin/sh
while true
do
modprobe -r thinkpad_acpi
modprobe thinkpad_acpi
done
And the OOPS looks like this:
[ 73.863557] BUG: unable to handle kernel paging request at 45440000
[ 73.863925] IP: [<c1051d65>] process_one_work+0x25/0x3b0
[ 73.864749] *pde = 00000000
[ 73.865571] Oops: 0000 [#1] PREEMPT SMP
[ 73.866443] Modules linked in: thinkpad_acpi(-) nvram netconsole configfs
aes_i586 cryptd aes_generic joydev btusb bluetooth arc4 snd_hda_codec_analog
iwl4965 uhci_hcd pcmcia microcode iwlegacy mac80211 cfg80211 firewire_ohci
firewire_core kvm_intel kvm snd_hda_intel acpi_cpufreq mperf ehci_hcd yenta_socket
pcmcia_rsrc crc_itu_t sr_mod snd_hda_codec processor pcmcia_core i2c_i801 usbcore
lpc_ich cdrom serio_raw psmouse coretemp rfkill e1000e snd_pcm snd_page_alloc
snd_hwdep snd_timer snd pcspkr evdev ac battery thermal soundcore usb_common
intel_agp intel_gtt tp_smapi(O) thinkpad_ec(O) ext4 crc16 jbd2 mbcache sd_mod
ata_piix ahci libahci libata scsi_mod nouveau button video mxm_wmi wmi
i2c_algo_bit drm_kms_helper ttm drm agpgart i2c_core [last unloaded: nvram]
[ 73.866676]
[ 73.866676] Pid: 62, comm: kworker/u:4 Tainted: G O 3.5.0-1-ARCH
#1 LENOVO 7662CTO/7662CTO
[ 73.866676] EIP: 0060:[<c1051d65>] EFLAGS: 00010002 CPU: 1
[ 73.866676] EIP is at process_one_work+0x25/0x3b0
[ 73.866676] EAX: 45440065 EBX: f5545090 ECX: 00000088 EDX: 45440000
[ 73.866676] ESI: f568ff40 EDI: c164dd40 EBP: f5705f98 ESP: f5705f68
[ 73.866676] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
[ 73.866676] CR0: 8005003b CR2: 45440000 CR3: 357ed000 CR4: 000007d0
[ 73.866676] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000
[ 73.866676] DR6: ffff0ff0 DR7: 00000400
[ 73.866676] Process kworker/u:4 (pid: 62, ti=f5704000 task=f5700540 task.ti=f5704000)
[ 73.866676] Stack:
[ 73.866676] f56fbf24 00000001 f5705f78 c10683e0 c1294950 00000000 00000000 f568ff40
[ 73.866676] 00000000 f568ff40 f568ff50 c164dd40 f5705fb8 c1052589 c1060c7e c15b9300
[ 73.866676] c164dd40 00000000 f568ff40 c1052490 f5705fe4 c10570b2 00000000 f568ff40
[ 73.866676] Call Trace:
[ 73.866676] [<c10683e0>] ? default_wake_function+0x10/0x20
[ 73.866676] [<c1294950>] ? dev_get_drvdata+0x20/0x20
[ 73.866676] [<c1052589>] worker_thread+0xf9/0x280
[ 73.866676] [<c1060c7e>] ? complete+0x4e/0x60
[ 73.866676] [<c1052490>] ? manage_workers.isra.24+0x1c0/0x1c0
[ 73.866676] [<c10570b2>] kthread+0x72/0x80
[ 73.866676] [<c1057040>] ? kthread_freezable_should_stop+0x50/0x50
[ 73.866676] [<c13c20fe>] kernel_thread_helper+0x6/0x10
[ 73.866676] Code: bc 27 00 00 00 00 55 89 e5 57 56 53 83 ec 24 3e 8d 74 26
00 89 c6 8b 02 89 d3 c7 45 f0 00 00 00 00 89 c2 30 d2 a8 04 0f 44 55 f0 <8b> 02 89 55 f0 89 da c1 ea
0a 89 45 ec 89 d8 8b 4d ec c1 e8 04
[ 73.866676] EIP: [<c1051d65>] process_one_work+0x25/0x3b0 SS:ESP 0068:f5705f68
[ 73.866676] CR2: 0000000045440000
[ 73.866676] ---[ end trace 4d8a1887edca08c5 ]---
[ 73.866676] note: kworker/u:4[62] exited with preempt_count 1
Signed-off-by: Li Dongyang <Jerry87905@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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Make the thinkpad_acpi driver define its PM callbacks through
a struct dev_pm_ops object rather than by using legacy PM hooks
in struct platform_driver.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Acked-by: Matthew Garrett <mjg@redhat.com>
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Multiple suspend routines in drivers/platform/x86/thinkpad_acpi.c
use take pm_message_t arguments that aren't used by any of them.
Make those routines take no arguments as that's what they should do.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Acked-by: Matthew Garrett <mjg@redhat.com>
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The tp_features.bright_acpimode will not be set correctly for brightness
control because ACPI_VIDEO_HID will not be located in ACPI. As a result,
a duplicated key event will always be sent. acpi_video_backlight_support()
is sufficient to detect standard ACPI brightness control.
Signed-off-by: Alex Hung <alex.hung@canonical.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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The newer V series bios reports product version as 'Lenovo'
instead of 'ThinkPad'. Recoginze this new string so that
the module can load.
Signed-off-by: Manoj Iyer <manoj.iyer@canonical.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Tested-by: James Ferguson <james.ferguson@canonical.com>
Tested-by: Dennis Chua <dennis.chua@canonical.com>
Tested-by: Ike Pan <ike.pan@canonical.com>
Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
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module_param(bool) used to counter-intuitively take an int. In
fddd5201 (mid-2009) we allowed bool or int/unsigned int using a messy
trick.
It's time to remove the int/unsigned int option. For this version
it'll simply give a warning, but it'll break next kernel version.
Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
* 'pm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (76 commits)
PM / Hibernate: Implement compat_ioctl for /dev/snapshot
PM / Freezer: fix return value of freezable_schedule_timeout_killable()
PM / shmobile: Allow the A4R domain to be turned off at run time
PM / input / touchscreen: Make st1232 use device PM QoS constraints
PM / QoS: Introduce dev_pm_qos_add_ancestor_request()
PM / shmobile: Remove the stay_on flag from SH7372's PM domains
PM / shmobile: Don't include SH7372's INTCS in syscore suspend/resume
PM / shmobile: Add support for the sh7372 A4S power domain / sleep mode
PM: Drop generic_subsys_pm_ops
PM / Sleep: Remove forward-only callbacks from AMBA bus type
PM / Sleep: Remove forward-only callbacks from platform bus type
PM: Run the driver callback directly if the subsystem one is not there
PM / Sleep: Make pm_op() and pm_noirq_op() return callback pointers
PM/Devfreq: Add Exynos4-bus device DVFS driver for Exynos4210/4212/4412.
PM / Sleep: Merge internal functions in generic_ops.c
PM / Sleep: Simplify generic system suspend callbacks
PM / Hibernate: Remove deprecated hibernation snapshot ioctls
PM / Sleep: Fix freezer failures due to racy usermodehelper_is_disabled()
ARM: S3C64XX: Implement basic power domain support
PM / shmobile: Use common always on power domain governor
...
Fix up trivial conflict in fs/xfs/xfs_buf.c due to removal of unused
XBT_FORCE_SLEEP bit
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Writeback and thinkpad_acpi have been using thaw_process() to prevent
deadlock between the freezer and kthread_stop(); unfortunately, this
is inherently racy - nothing prevents freezing from happening between
thaw_process() and kthread_stop().
This patch implements kthread_freezable_should_stop() which enters
refrigerator if necessary but is guaranteed to return if
kthread_stop() is invoked. Both thaw_process() users are converted to
use the new function.
Note that this deadlock condition exists for many of freezable
kthreads. They need to be converted to use the new should_stop or
freezable workqueue.
Tested with synthetic test case.
Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Henrique de Moraes Holschuh <ibm-acpi@hmh.eng.br>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Oleg Nesterov <oleg@redhat.com>
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both proc_dir_entry ->mode and populating functions
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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I suspect that this works on T410.
Signed-off-by: Andy Lutomirski <luto@mit.edu>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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