To give people easily an idea what could be WMI driven on their system.
Introduces:
wmi.debug=[01]

Tested on an acer:
ACPI: WMI: DEBUG Event INTEGER_TYPE - 65535

Situation where a driver registers for specific event and debug
handler gets overridden and set again if the registering driver gets
unloaded again is untested, but should work.
Signed-off-by: NThomas Renninger <trenn@suse.de>
CC: platform-driver-x86@vger.kernel.org
CC: mjg59@srcf.ucam.org
CC: corentin.chary@gmail.com
Signed-off-by: NCarlos Corbacho <carlos@strangeworlds.co.uk>
Signed-off-by: NMatthew Garrett <mjg@redhat.com>

Clean up i8042 filter, rfkill and cancel delayed work when msi-laptop driver initial fail or exit on MSI scm model.
Signed-off-by: NLee, Chun-Yi <jlee@novell.com>

Cc: Lee, Chun-Yi <jlee@novell.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

There have some MSI netbook change devices state by EC when user press
wlan/bluetooth/wwan function keys. So, add a i8042 filter to sync sw
state with BIOS when function keys pressed.
Signed-off-by: NLee, Chun-Yi <jlee@novell.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Setup Wlan/Bluetooth/3G rfkill initial state to sync with the hardware
state from EC 0x2e address.
Signed-off-by: NLee, Chun-Yi <jlee@novell.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Add new MSI notebook CR620 dmi information to scm models table.
Signed-off-by: NLee, Chun-Yi <jlee@novell.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Add new MSI netbook N014 and N051 dmi information to scm models table.
Signed-off-by: NLee, Chun-Yi <jlee@novell.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Use kmemdup when some other buffer is immediately copied into the
allocated region.

A simplified version of the semantic patch that makes this change is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
expression from,to,size,flag;
statement S;
@@

-  to = \(kmalloc\|kzalloc\)(size,flag);
+  to = kmemdup(from,size,flag);
   if (to==NULL || ...) S
-  memcpy(to, from, size);
// </smpl>
Signed-off-by: NJulia Lawall <julia@diku.dk>

Use kzalloc rather than the combination of kmalloc and memset.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
expression x,size,flags;
statement S;
@@

-x = kmalloc(size,flags);
+x = kzalloc(size,flags);
 if (x == NULL) S
-memset(x, 0, size);
// </smpl>
Signed-off-by: NJulia Lawall <julia@diku.dk>

Merge branch 'for-upstream/platform-x86_tpacpi' of git://repo.or.cz/linux-2.6/linux-acpi-2.6/ibm-acpi-2.6 into x86-platform

Make it clear that this driver is only needed for embedded hardware,
not PCs.
Signed-off-by: NMatthew Garrett <mjg@redhat.com>

eeepc-wmi uses backlight*() interfaces so it should depend on
BACKLIGHT_CLASS_DEVICE.

eeepc-wmi.c:(.text+0x2d7f54): undefined reference to `backlight_force_update'
eeepc-wmi.c:(.text+0x2d8012): undefined reference to `backlight_device_register'
eeepc-wmi.c:(.devinit.text+0x1c31c): undefined reference to `backlight_device_unregister'
eeepc-wmi.c:(.devexit.text+0x2f8b): undefined reference to `backlight_device_unregister'
Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com>
Cc: stable@kernel.org

The IPC (inter processor communications) is used to provide the
communications between kernel and system control units on some embedded
Intel x86 platforms.

(Various bits of clean up and restructuring by Alan Cox)
Signed-off-by: NSreedhara DS <sreedhara.ds@intel.com>
Signed-off-by: NAlan Cox <alan@linux.intel.com>

The RFKILL device shares the same ACPI device used for backlight. So, it
required a new struct sharing both a backlight_device and a rfkill
device.
Signed-off-by: NThadeu Lima de Souza Cascardo <cascardo@holoscopio.com>

Document this, it is no fun to try to second guess why this sort of
stuff is in place years after it was added...
Signed-off-by: NHenrique de Moraes Holschuh <hmh@hmh.eng.br>

1. Remove <handle>_path, as its only user was already removed in
   a previous commit

2. Move all handle initialization, as well as <handle>_parent and
   <handle>_paths to __init.* sections.  This reduces the driver's
   runtime footprint nicely.
Signed-off-by: NHenrique de Moraes Holschuh <hmh@hmh.eng.br>

Don't depend on the contents of led_path to know which LED interface
the firmware wants.

This removes the only user of *_path for the thinkpad-acpi ACPI
handlers, which will simplify future code.
Signed-off-by: NHenrique de Moraes Holschuh <hmh@hmh.eng.br>

Log more human-friendly errors instead of numeric values when
setup_acpi_notify() fails to install a notification handler.
Signed-off-by: NHenrique de Moraes Holschuh <hmh@hmh.eng.br>

Use acpi_format_exception() in acpi_evalf() instead of logging numeric
errors.

Also, when ACPICA returns an error, we should not be touching the return
object, as it is invalid.  In debug mode, acpi_evalf() callers would
printk the returned crap (but fortunately, not use it).
Signed-off-by: NHenrique de Moraes Holschuh <hmh@hmh.eng.br>

Use the EC HID (PNP0C09) to locate its main node, instead of a static
list.
Suggested-by: NMatthew Garrett <mjg@redhat.com>
Signed-off-by: NHenrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: Matthew Garrett <mjg@redhat.com>

Disclose the user task doing ALSA access when requested by
the debug bitmask.
Signed-off-by: NHenrique de Moraes Holschuh <hmh@hmh.eng.br>

Update the hotkey driver documentation to match the behaviour
of the fixed NVRAM polling code.

This also documents some HKEY events such as the alarms,
which is very important information.
Signed-off-by: NHenrique de Moraes Holschuh <hmh@hmh.eng.br>

Handle multiple brightness hotkey presses between two polling cycles.
Signed-off-by: NHenrique de Moraes Holschuh <hmh@hmh.eng.br>

Extract the backlight level range size detection from the brightness
subdriver, and allow the other subdrivers access to that information.

This also allows us to relocate some code to a more convenient place.
The moved code was largerly unmodified, except for the return type of
tpacpi_check_std_acpi_brightness_support(), which now is correctly
marked as returning "unsigned int", and and two cosmetic fixes to make
checkpatch.pl happy.

Fixes for the NVRAM polling mode for the brightness hotkeys will need
this.
Signed-off-by: NHenrique de Moraes Holschuh <hmh@hmh.eng.br>

Move the driver initial greetings out of the first subdriver, as we do a
lot of other initialization before that point, and the initial greetings
should go as soon as the driver decides that it should load.

These greetings are not cosmetic, they make my life easier when users
report bugs.
Signed-off-by: NHenrique de Moraes Holschuh <hmh@hmh.eng.br>

The hotkey polling code is supposed to generate hotkey messages as
close to the way the IBM event-based volume hotkey firmware does as
possible, i.e:

* Pressing MUTE issues a mute hotkey event, even if already mute;

* Pressing Volume up/down issues a volume up/down hotkey event,
  even if already at maximum or minumum volume;

* The act of unmuting issues a volume up/down event, depending on
  which hotkey was used to unmute.

Fix the code to do just that (mute handling was incorrect), and handle
multiple hotkey presses between two polling cycles.

The new code uses the volume_toggle bit in NVRAM only to detect
repeated presses of the mute key and multiple presses of the volume
keys trying to go past the end of the volume scale.  This will work
around a bug in recent Lenovo firmware (e.g. T400), which causes the
firmware to not update the volume_toggle bit in certain situations.
Reported-by: NYang Zhe <yangzhe1990@gmail.com>
Signed-off-by: NHenrique de Moraes Holschuh <hmh@hmh.eng.br>

The X100e needs some quick fixes to work semi-right with this driver.
There are much better ways to do this, but we can start with a quick
update and do it properly later.
Signed-off-by: NHenrique de Moraes Holschuh <hmh@hmh.eng.br>

Lenovo is playing around with its ACPI BIOS, and will end up reusing
method names.  Their memory is not nearly as long as thinkpad-acpi's...

Secure most of the old IBM codepaths against running in a non-IBM box.
This would happen on the Lenovo X100e in video_init(), for example.  We
would misdetect it as an ancient model 570 firmware.

Also, refuse to load the driver if we cannot identify the vendor.  No
ACPI ThinkPad in existence lacks this information, AFAIK.
Signed-off-by: NHenrique de Moraes Holschuh <hmh@hmh.eng.br>

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
  rtnetlink: make SR-IOV VF interface symmetric
  sctp: delete active ICMP proto unreachable timer when free transport
  tcp: fix MD5 (RFC2385) support

* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
  MIPS: Oprofile: Fix Loongson irq handler
  MIPS: N32: Use compat version for sys_ppoll.
  MIPS FPU emulator: allow Cause bits of FCSR to be writeable by ctc1

Now we have a set of nested attributes:

  IFLA_VFINFO_LIST (NESTED)
    IFLA_VF_INFO (NESTED)
      IFLA_VF_MAC
      IFLA_VF_VLAN
      IFLA_VF_TX_RATE

This allows a single set to operate on multiple attributes if desired.
Among other things, it means a dump can be replayed to set state.

The current interface has yet to be released, so this seems like
something to consider for 2.6.34.
Signed-off-by: NChris Wright <chrisw@sous-sol.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

transport may be free before ICMP proto unreachable timer expire, so
we should delete active ICMP proto unreachable timer when transport
is going away.
Signed-off-by: NWei Yongjun <yjwei@cn.fujitsu.com>
Acked-by: NVlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

TCP MD5 support uses percpu data for temporary storage. It currently
disables preemption so that same storage cannot be reclaimed by another
thread on same cpu.

We also have to make sure a softirq handler wont try to use also same
context. Various bug reports demonstrated corruptions.

Fix is to disable preemption and BH.
Reported-by: NBhaskar Dutta <bhaskie@gmail.com>
Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

    
    The interrupt enable bit for the performance counters is in the Control
    Register $24, not in the counter register.
    loongson2_perfcount_handler(), we need to use
Reported-by: NXu Hengyang <hengyang@mail.ustc.edu.cn>
Signed-off-by: NWu Zhangjin <wuzhangjin@gmail.com>
    Cc: linux-mips@linux-mips.org
    Patchwork: http://patchwork.linux-mips.org/patch/1198/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

---

    
    The sys_ppoll() takes struct 'struct timespec'. This is different for the
    N32 and N64 ABIs. Use the compat version to do the proper conversions.
Signed-off-by: NDavid Daney <ddaney@caviumnetworks.com>
    To: linux-mips@linux-mips.org
    Patchwork: http://patchwork.linux-mips.org/patch/1210/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

---

    
    In the FPU emulator code of the MIPS, the Cause bits of the FCSR register
    are not currently writeable by the ctc1 instruction.  In odd corner cases,
    this can cause problems.  For example, a case existed where a divide-by-zero
    exception was generated by the FPU, and the signal handler attempted to
    restore the FPU registers to their state before the exception occurred.  In
    this particular setup, writing the old value to the FCSR register would
    cause another divide-by-zero exception to occur immediately.  The solution
    is to change the ctc1 instruction emulator code to allow the Cause bits of
    the FCSR register to be writeable.  This is the behaviour of the hardware
    that the code is emulating.
    
    This problem was found by Shane McDonald, but the credit for the fix goes
    to Kevin Kissell.  In Kevin's words:
    
    I submit that the bug is indeed in that ctc_op:  case of the emulator.  The
    Cause bits (17:12) are supposed to be writable by that instruction, but the
    CTC1 emulation won't let them be updated by the instruction.  I think that
    actually if you just completely removed lines 387-388 [...] things would
    work a good deal better.  At least, it would be a more accurate emulation of
    the architecturally defined FPU.  If I wanted to be really, really pedantic
    (which I sometimes do), I'd also protect the reserved bits that aren't
    necessarily writable.
Signed-off-by: NShane McDonald <mcdonald.shane@gmail.com>
    To: anemo@mba.ocn.ne.jp
    To: kevink@paralogos.com
    To: sshtylyov@mvista.com
    Patchwork: http://patchwork.linux-mips.org/patch/1205/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

---

* git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable:
  Btrfs: check for read permission on src file in the clone ioctl