openwrt/staging/blogic.git
9 years agoSTAGING: Fix pcl818.c coding style issue: line over 80 characters
Simon Guo [Thu, 29 Jan 2015 05:34:28 +0000 (13:34 +0800)]
STAGING: Fix pcl818.c coding style issue: line over 80 characters

Correct one coding style problem(detected by checkpatch.pl) in pcl818.c.
- line over 80 characters

Signed-off-by: Simon Guo <wei.guo.simon@gmail.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agoSTAGING: Fix pcl818.c coding style issue: code indent should use tabs where possible
Simon Guo [Thu, 29 Jan 2015 05:33:17 +0000 (13:33 +0800)]
STAGING: Fix pcl818.c coding style issue: code indent should use tabs where possible

Correct one coding style problem(detected by checkpatch.pl) in pcl818.c.
- code indent should use tabs where possible
It is fixed by reformatting the comment block to usual comment style.

And with the reformatting, following coding style problem is also fixed:
- please, no space before tabs

Signed-off-by: Simon Guo <wei.guo.simon@gmail.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agostaging: speakup: Remove unnecessary space
Bastian Plettner [Wed, 28 Jan 2015 19:25:02 +0000 (20:25 +0100)]
staging: speakup: Remove unnecessary space

This patch fixes the checkpath.pl warning:

ERROR: space prohibited before that ',' (ctx:WxE)
+       MSG_FIRST_INDEX ,

And removes the unnecessary space.

Signed-off-by: Bastian Plettner <b.plettner@archlinux.info>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agostaging: comedi: dt282x: condition with no effect - if identical to else
Nicholas Mc Guire [Wed, 4 Feb 2015 17:02:33 +0000 (12:02 -0500)]
staging: comedi: dt282x: condition with no effect - if identical to else

The if and the else branch code are identical - so the condition has no
effect on the effective code - this patch removes the condition and the
duplicated code.

Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agostaging: comedi: comedi_pcmcia.h: move PCMCIA stuff out of comedidev.h
Ian Abbott [Fri, 30 Jan 2015 09:57:26 +0000 (09:57 +0000)]
staging: comedi: comedi_pcmcia.h: move PCMCIA stuff out of comedidev.h

Move the PCMCIA-specific stuff out of "comedidev.h" into
"comedi_pcmcia.h".  Comedi PCMCIA drivers now include "comedi_pcmcia.h"
instead of "comedidev.h", which now gets pulled in indirectly.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agostaging: comedi: quatech_daqp_cs: include new "comedi_pcmcia.h" header
Ian Abbott [Fri, 30 Jan 2015 09:57:25 +0000 (09:57 +0000)]
staging: comedi: quatech_daqp_cs: include new "comedi_pcmcia.h" header

Include the new "../comedi_pcmcia.h" header instead of
<pcmcia/cistpl.h>, <pcmcia/cisreg.h>, <pcmcia/ds.h> and
"../comedidev.h".  <pcmcia/cisreg.h> isn't needed and the others will
now get included indirectly.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agostaging: comedi: ni_mio_cs: include new "comedi_pcmcia.h" header
Ian Abbott [Fri, 30 Jan 2015 09:57:24 +0000 (09:57 +0000)]
staging: comedi: ni_mio_cs: include new "comedi_pcmcia.h" header

Include the new "../comedi_pcmcia.h" header instead of
<pcmcia/cistpl.h>, <pcmcia/ds.h> and "../comedidev.h", which will now
get included indirectly.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agostaging: comedi: ni_labpc_cs: include new "comedi_pcmcia.h" header
Ian Abbott [Fri, 30 Jan 2015 09:57:23 +0000 (09:57 +0000)]
staging: comedi: ni_labpc_cs: include new "comedi_pcmcia.h" header

Include the new "../comedi_pcmcia.h" header instead of
<pcmcia/cistpl.h>, <pcmcia/cisreg.h>, <pcmcia/ds.h> and
"../comedidev.h".  <pcmcia/cisreg.h> isn't needed and the others will
now get included indirectly.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agostaging: comedi: ni_daq_dio24: include new "comedi_pcmcia.h" header
Ian Abbott [Fri, 30 Jan 2015 09:57:22 +0000 (09:57 +0000)]
staging: comedi: ni_daq_dio24: include new "comedi_pcmcia.h" header

Include the new "../comedi_pcmcia.h" header instead of
<pcmcia/cistpl.h>, <pcmcia/cisreg.h>, <pcmcia/ds.h> and
"../comedidev.h".  <pcmcia/cisreg.h> isn't needed and the others will
now get included indirectly.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agostaging: comedi: ni_daq_700: include new "comedi_pcmcia.h" header
Ian Abbott [Fri, 30 Jan 2015 09:57:21 +0000 (09:57 +0000)]
staging: comedi: ni_daq_700: include new "comedi_pcmcia.h" header

Include the new "../comedi_pcmcia.h" header instead of
<pcmcia/cistpl.h>, <pcmcia/ds.h> and "../comedidev.h", which will now
get included indirectly.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agostaging: comedi: das08_cs: include new "comedi_pcmcia.h" header
Ian Abbott [Fri, 30 Jan 2015 09:57:20 +0000 (09:57 +0000)]
staging: comedi: das08_cs: include new "comedi_pcmcia.h" header

Include the new "../comedi_pcmcia.h" header instead of
<pcmcia/cistpl.h>, <pcmcia/ds.h> and "../comedidev.h", which will now
get included indirectly.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agostaging: comedi: cb_das16_cs: include new "comedi_pcmcia.h" header
Ian Abbott [Fri, 30 Jan 2015 09:57:19 +0000 (09:57 +0000)]
staging: comedi: cb_das16_cs: include new "comedi_pcmcia.h" header

Include the new "../comedi_pcmcia.h" header instead of
<pcmcia/cistpl.h>, <pcmcia/ds.h> and "../comedidev.h", which will now
get included indirectly.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agostaging: comedi: comedi_pcmcia.c: include new "comedi_pcmcia.h" header
Ian Abbott [Fri, 30 Jan 2015 09:57:18 +0000 (09:57 +0000)]
staging: comedi: comedi_pcmcia.c: include new "comedi_pcmcia.h" header

Include the new "comedi_pcmcia.h" header instead of <pcmcia/cistpl.h>,
<pcmcia/ds.h> and "comedidev.h", which will now get included indirectly.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agostaging: comedi: add comedi_pcmcia.h
Ian Abbott [Fri, 30 Jan 2015 09:57:17 +0000 (09:57 +0000)]
staging: comedi: add comedi_pcmcia.h

Add a new header that Comedi PCMCIA drivers can include instead of
"comedidev.h".  Currently, it just pulls in <pcmcia/cistpl.h>,
<pcmcia/ds.h> and "comedidev.h", but the plan is to migrate the
PCMCIA-specific stuff from "comedidev.h" here.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agostaging: comedi: comedi_fops.c: reformat remaining block comments
Ian Abbott [Wed, 28 Jan 2015 18:41:50 +0000 (18:41 +0000)]
staging: comedi: comedi_fops.c: reformat remaining block comments

Reformat remaining block comments to use the usual block comment style.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agostaging: comedi: range.c: reformat copyright comment
Ian Abbott [Wed, 28 Jan 2015 18:41:49 +0000 (18:41 +0000)]
staging: comedi: range.c: reformat copyright comment

Use the usual block comment style.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agostaging: comedi: range.c: reformat ioctl handler comment
Ian Abbott [Wed, 28 Jan 2015 18:41:48 +0000 (18:41 +0000)]
staging: comedi: range.c: reformat ioctl handler comment

The unlocked_ioctl handler in "comedi_fops.c" calls a different function
to handle each supported ioctl command code.  Most of these have a block
comment indicating which command code it handles, a brief description,
and an informal description of the inputs and outputs.  These block
comments were formatted in various styles, but have been reformatted to
use the usual block comment style.

The block comment for the handler function for the `COMEDI_RANGEINFO`
ioctl code is in "range.c".  Reformat it to use the usual block command
style to match the others.  Reword it a bit for consistency.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agostaging: comedi: comedi_fops.c: reformat ioctl handler comments
Ian Abbott [Wed, 28 Jan 2015 18:41:47 +0000 (18:41 +0000)]
staging: comedi: comedi_fops.c: reformat ioctl handler comments

The unlocked_ioctl handler calls a different function to handle each
supported ioctl command code.  Most of these have a block comment
indicating which command code it handles, a brief description, and an
informal description of the inputs and outputs.  These block comments
are formatted in various styles.  Reformat them to the usual block
comment style and do a bit of rewording for consistency.  The comment
block for the `COMEDI_CMD` ioctl is missing, so add one.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agostaging: comedi: comedi_fops.c: document exported functions
Ian Abbott [Wed, 28 Jan 2015 18:41:46 +0000 (18:41 +0000)]
staging: comedi: comedi_fops.c: document exported functions

Add kerneldoc for exported functions `comedi_dev_put()`,
`comedi_dev_get_from_minor()`, `comedi_is_subdevice_running()`, and
`comedi_event()`.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agostaging: comedi: comedi_fops.c: reformat copyright header
Ian Abbott [Wed, 28 Jan 2015 18:41:45 +0000 (18:41 +0000)]
staging: comedi: comedi_fops.c: reformat copyright header

Use the usual block comment style.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agostaging: comedi: drivers: usbduxsigma: Removed variables that is never used
Rickard Strandqvist [Thu, 29 Jan 2015 22:50:09 +0000 (23:50 +0100)]
staging: comedi: drivers: usbduxsigma: Removed variables that is never used

Variable was assigned a value that was never used.
I have also removed all the code that thereby serves no purpose.

This was found using a static code analysis program called cppcheck

Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: Bernd Porr <mail@berndporr.me.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agostaging: comedi: drivers: addi_apci_3501: Removed variables that is never used
Rickard Strandqvist [Thu, 29 Jan 2015 22:34:55 +0000 (23:34 +0100)]
staging: comedi: drivers: addi_apci_3501: Removed variables that is never used

Variable was assigned a value that was never used.
I have also removed all the code that thereby serves no purpose.

This was found using a static code analysis program called cppcheck

Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agostaging: comedi: drivers: rtd520: Removed variables that is never used
Rickard Strandqvist [Thu, 29 Jan 2015 22:43:36 +0000 (23:43 +0100)]
staging: comedi: drivers: rtd520: Removed variables that is never used

Variable was assigned a value that was never used.
I have also removed all the code that thereby serves no purpose.

This was found using a static code analysis program called cppcheck

Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agostaging: comedi: drivers: addi-data: hwdrv_apci3501: Removed variables that is never...
Rickard Strandqvist [Thu, 29 Jan 2015 22:30:47 +0000 (23:30 +0100)]
staging: comedi: drivers: addi-data: hwdrv_apci3501: Removed variables that is never used

Variable was assigned a value that was never used.
I have also removed all the code that thereby serves no purpose.

This was found using a static code analysis program called cppcheck

Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agostaging: comedi: drivers: mite: Removed variables that is never used
Rickard Strandqvist [Thu, 29 Jan 2015 22:25:51 +0000 (23:25 +0100)]
staging: comedi: drivers: mite: Removed variables that is never used

Variable was assigned a value that was never used.
I have also removed all the code that thereby serves no purpose.

This was found using a static code analysis program called cppcheck

Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agostaging: comedi: drivers: ni_mio_cs: Removed variables that is never used
Rickard Strandqvist [Wed, 28 Jan 2015 22:37:40 +0000 (23:37 +0100)]
staging: comedi: drivers: ni_mio_cs: Removed variables that is never used

Variable ar assigned a value that is never used.
I have also removed all the code that thereby serves no purpose.

This was found using a static code analysis program called cppcheck

Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agostaging: comedi: drivers: ni_atmio: Removed variables that is never used
Rickard Strandqvist [Wed, 28 Jan 2015 22:37:01 +0000 (23:37 +0100)]
staging: comedi: drivers: ni_atmio: Removed variables that is never used

Variable ar assigned a value that is never used.
I have also removed all the code that thereby serves no purpose.

This was found using a static code analysis program called cppcheck

Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agostaging: comedi: addi_apci_1500: fix array access out of bounds error
H Hartley Sweeten [Wed, 28 Jan 2015 16:58:56 +0000 (09:58 -0700)]
staging: comedi: addi_apci_1500: fix array access out of bounds error

The private data 'pm', 'pt', and 'pp' array members hold the trigger mode
parameters for ports A and B. Both ports are 8-bits and the arrays are 16-bits.
Array index 0 defines the AND mode and index 1 the OR mode parameters for both
ports.

The valid triggers to start the async command are 0 to 3 which select the
AND/OR mode for each port.

The 'pb_trig' (the array index for port B) in apci1500_di_inttrig_start() is
incorrect and results in an index of 0 or 2. Fix the calc so that the correct
index (0/1) is used.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reported-by: Asaf Vertz <asaf.vertz@tandemg.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agostaging: cptm1217: blow it all away
Alan Cox [Tue, 3 Feb 2015 13:18:03 +0000 (13:18 +0000)]
staging: cptm1217: blow it all away

We have a drivers/input layer for Synaptics products and nothing should now
be using the staging driver.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agoi2o: move to staging
Alan Cox [Tue, 3 Feb 2015 13:18:55 +0000 (13:18 +0000)]
i2o: move to staging

The I2O layer deals with a technology that to say the least didn't catch on
in the market.

The only relevant products are some of the AMI MegaRAID - which supported I2O
and its native mode (The native mode is faster and runs on Linux), an
obscure crypto ethernet card that's now so many years out of date nobody
would use it, the old DPT controllers, which speak their own dialect and
have their own driver - and ermm.. thats about it.

We also know the code isn't in good shape as recently a patch was proposed
and queried as buggy, which in turn showed the existing code was broken
already by prior "clean up" and nobody had noticed that either.

It's coding style robot code nothing more. Like some forgotten corridor
cleaned relentlessly by a lost Roomba but where no user has trodden in years.

Move it to staging and then to /dev/null.

The headers remain as they are shared with dpt_i2o.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agoMerge 3.19-rc7 into staging-next
Greg Kroah-Hartman [Mon, 2 Feb 2015 16:41:02 +0000 (08:41 -0800)]
Merge 3.19-rc7 into staging-next

We want those fixes in here for testing.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agoLinux 3.19-rc7
Linus Torvalds [Mon, 2 Feb 2015 04:07:21 +0000 (20:07 -0800)]
Linux 3.19-rc7

9 years agoMerge tag 'armsoc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm...
Linus Torvalds [Sun, 1 Feb 2015 21:20:47 +0000 (13:20 -0800)]
Merge tag 'armsoc-for-linus' of git://git./linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Olof Johansson:
 "One more week's worth of fixes.  Worth pointing out here are:

   - A patch fixing detaching of iommu registrations when a device is
     removed -- earlier the ops pointer wasn't managed properly
   - Another set of Renesas boards get the same GIC setup fixup as
     others have in previous -rcs
   - Serial port aliases fixups for sunxi.  We did the same to tegra but
     we caught that in time before the merge window due to more machines
     being affected.  Here it took longer for anyone to notice.
   - A couple more DT tweaks on sunxi
   - A follow-up patch for the mvebu coherency disabling in last -rc
     batch"

* tag 'armsoc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  arm: dma-mapping: Set DMA IOMMU ops in arm_iommu_attach_device()
  ARM: shmobile: r8a7790: Instantiate GIC from C board code in legacy builds
  ARM: shmobile: r8a73a4: Instantiate GIC from C board code in legacy builds
  ARM: mvebu: don't set the PL310 in I/O coherency mode when I/O coherency is disabled
  ARM: sunxi: dt: Fix aliases
  ARM: dts: sun4i: Add simplefb node with de_fe0-de_be0-lcd0-hdmi pipeline
  ARM: dts: sun6i: ippo-q8h-v5: Fix serial0 alias
  ARM: dts: sunxi: Fix usb-phy support for sun4i/sun5i

9 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Linus Torvalds [Sun, 1 Feb 2015 21:16:40 +0000 (13:16 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/dtor/input

Pull input layer updates from Dmitry Torokhov:
 "Just a few quirks for PS/2 this time"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: elantech - add more Fujtisu notebooks to force crc_enabled
  Input: i8042 - add noloop quirk for Medion Akoya E7225 (MD98857)
  Input: synaptics - adjust min/max for Lenovo ThinkPad X1 Carbon 2nd

9 years agosched: don't cause task state changes in nested sleep debugging
Linus Torvalds [Sun, 1 Feb 2015 20:23:32 +0000 (12:23 -0800)]
sched: don't cause task state changes in nested sleep debugging

Commit 8eb23b9f35aa ("sched: Debug nested sleeps") added code to report
on nested sleep conditions, which we generally want to avoid because the
inner sleeping operation can re-set the thread state to TASK_RUNNING,
but that will then cause the outer sleep loop not actually sleep when it
calls schedule.

However, that's actually valid traditional behavior, with the inner
sleep being some fairly rare case (like taking a sleeping lock that
normally doesn't actually need to sleep).

And the debug code would actually change the state of the task to
TASK_RUNNING internally, which makes that kind of traditional and
working code not work at all, because now the nested sleep doesn't just
sometimes cause the outer one to not block, but will cause it to happen
every time.

In particular, it will cause the cardbus kernel daemon (pccardd) to
basically busy-loop doing scheduling, converting a laptop into a heater,
as reported by Bruno Prémont.  But there may be other legacy uses of
that nested sleep model in other drivers that are also likely to never
get converted to the new model.

This fixes both cases:

 - don't set TASK_RUNNING when the nested condition happens (note: even
   if WARN_ONCE() only _warns_ once, the return value isn't whether the
   warning happened, but whether the condition for the warning was true.
   So despite the warning only happening once, the "if (WARN_ON(..))"
   would trigger for every nested sleep.

 - in the cases where we knowingly disable the warning by using
   "sched_annotate_sleep()", don't change the task state (that is used
   for all core scheduling decisions), instead use '->task_state_change'
   that is used for the debugging decision itself.

(Credit for the second part of the fix goes to Oleg Nesterov: "Can't we
avoid this subtle change in behaviour DEBUG_ATOMIC_SLEEP adds?" with the
suggested change to use 'task_state_change' as part of the test)

Reported-and-bisected-by: Bruno Prémont <bonbons@linux-vserver.org>
Tested-by: Rafael J Wysocki <rjw@rjwysocki.net>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>,
Cc: Ilya Dryomov <ilya.dryomov@inktank.com>,
Cc: Mike Galbraith <umgwanakikbuti@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Peter Hurley <peter@hurleysoftware.com>,
Cc: Davidlohr Bueso <dave@stgolabs.net>,
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
9 years agoInput: elantech - add more Fujtisu notebooks to force crc_enabled
Rainer Koenig [Tue, 27 Jan 2015 23:15:11 +0000 (15:15 -0800)]
Input: elantech - add more Fujtisu notebooks to force crc_enabled

Add two more Fujitsu LIFEBOOK models that also ship with the Elantech
touchpad and don't work with crc_disabled to the quirk list.

Signed-off-by: Rainer Koenig <Rainer.Koenig@ts.fujitsu.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoMerge tag 'renesas-soc-fixes3-for-v3.19' of git://git.kernel.org/pub/scm/linux/kernel...
Olof Johansson [Sun, 1 Feb 2015 16:51:12 +0000 (08:51 -0800)]
Merge tag 'renesas-soc-fixes3-for-v3.19' of git://git./linux/kernel/git/horms/renesas into fixes

Merge "Third Round of Renesas ARM Based SoC Fixes for v3.19" from Simon Horman:

* Instantiate GIC from C board code in legacy builds on r8a7790 and r8a73a4

* tag 'renesas-soc-fixes3-for-v3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  ARM: shmobile: r8a7790: Instantiate GIC from C board code in legacy builds
  ARM: shmobile: r8a73a4: Instantiate GIC from C board code in legacy builds

Signed-off-by: Olof Johansson <olof@lixom.net>
9 years agoMerge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa...
Linus Torvalds [Sat, 31 Jan 2015 18:34:25 +0000 (10:34 -0800)]
Merge branch 'i2c/for-current' of git://git./linux/kernel/git/wsa/linux

Pull i2c fixes from Wolfram Sang:
 "i2c driver bugfixes (s3c2410, slave-eeprom, sh_mobile), size
  regression "bugfix" (i2c slave), documentation bugfix (st).

  Also, one documentation update (da9063), so some devicetrees can now
  be verified"

* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: sh_mobile: terminate DMA reads properly
  i2c: Only include slave support if selected
  i2c: s3c2410: fix ABBA deadlock by keeping clock prepared
  i2c: slave-eeprom: fix boundary check when using sysfs
  i2c: st: Rename clock reference to something that exists
  DT: i2c: Add devices handled by the da9063 MFD driver

9 years agoMerge tag 'iio-for-3.20b' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23...
Greg Kroah-Hartman [Sat, 31 Jan 2015 16:43:49 +0000 (08:43 -0800)]
Merge tag 'iio-for-3.20b' of git://git./linux/kernel/git/jic23/iio into staging-testing

Jonathan writes:

Second round of IIO new drivers, functionality and cleanups for the 3.20 cycle.

New drivers and device support:
* Capella cm3232 ambient light sensor driver.
* Freescale MMA9553 pedometer and activity monitor. Note this involved a
  refactor of the mma9551 driver to pull out shared elements.
* Samsung sensor hub (as used in the galaxy gear 2 watch) Core support
  and initial drivers (gyro and accelerometer) more to follow.
  An additional fix was applied on top of this for a build issue
  thrown up by the autobuilders on some platforms.
* Cosmic Circuits 10001 ADC driver
* Qualcomm SPMI PMIC voltage ADC driver (current adc merged a while back).
* Add binding for AK8963 (in capitals) as unfortunately there are bios'
  out there not using lower case.

New functionality
* Add newe operating mode to the core to allow for non triggered software
  buffers.  This is mostly semantics as previously drivers just claimed they
  had a hardware buffer (when they didn't).
* Add distance channel type.
* Add energy channel type.
* Add velocity channel type and IIO_MOD_ROOT_SUM_SQUARED (i.e. speed when
  our channel type is velocity).
* Add _debounce_count and _debounce_time filter attributes.  Only really
  make sense for counting types of measurements.  First use is for avoiding
  miss detection of steps prior to walking.
* Add change event type.   This replaces the briefly present INSTANCE type
  (which hadn't gained any users).  It is more generic as it allows for
  events say every 10 steps rather than every step.
* Add _calibweight attributes to the ABI (and core support).  Used by
  activity monitors to estimate energy use.  Can imagine there will be
  other uses for this one.

Driver new functionality
* mma9551 gains runtime pm support.
* hid-sensors gain PM support.

Cleanup
* Change calibheight unit to m from cm.  As there are no prior users
  and this was inconsistent with other distance units, it makes sense
  to fix it before hte mma9553 driver which uses it.
* mpu6050 cleanups and devm_ use.
* as3935 switch over to PM ops.
* Fix a few format strings for signed vs unsigned.
* Fix tcs3414 missindentation
* Typo in industrialio-event
* Stop requiring IIO_TRIGGER for IIO_KFIFO_BUF as we have drivers that don't
  need it. No one is quite sure why that dependency was there and it
  seems to not matter.

9 years agoiio:common:ssp_sensors fix warnings due to 32 bit instead of 64 bit passed to do_div
Jonathan Cameron [Sat, 31 Jan 2015 09:41:14 +0000 (09:41 +0000)]
iio:common:ssp_sensors fix warnings due to 32 bit instead of 64 bit passed to do_div

Also change to div64_u64 in one place to avoid loss of precision
(was dividing a 32 bit number by a 64 bit number, but casting this
to 64 bit divided by 32 bit)  Those divide functions certainly have
esoteric naming!

Fixes warnings with asm-generic/div64.h do_div such as:
   In file included from drivers/iio/common/ssp_sensors/ssp_iio.c:20:0:
   drivers/iio/common/ssp_sensors/ssp_iio_sensor.h: In function 'ssp_convert_to_freq':
>> drivers/iio/common/ssp_sensors/ssp_iio_sensor.h:56:16: warning: comparison of distinct pointer types lacks a cast [enabled by default]
   drivers/iio/common/ssp_sensors/ssp_iio_sensor.h:56:2: warning: right shift count >= width of type [enabled by default]
>> drivers/iio/common/ssp_sensors/ssp_iio_sensor.h:56:2: warning: passing argument 1 of '__div64_32' from incompatible pointer type [enabled by default]
   include/asm-generic/div64.h:35:17: note: expected 'uint64_t *' but argument is of type 'int *'
   drivers/iio/common/ssp_sensors/ssp_iio.c: In function 'ssp_common_process_data':
   include/linux/iio/buffer.h:142:32: warning: 'calculated_time' may be used uninitialized in this function [-Wuninitialized]
   drivers/iio/common/ssp_sensors/ssp_iio.c:83:10: note: 'calculated_time' was declared here

Fixed by using straight coded version as per the description in the
div64.h header, thus ensuring no issue with 32 bit integers.

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoMerge tag 'char-misc-3.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregk...
Linus Torvalds [Sat, 31 Jan 2015 03:49:44 +0000 (19:49 -0800)]
Merge tag 'char-misc-3.19-rc7' of git://git./linux/kernel/git/gregkh/char-misc

Pull char/misc driver fixes from Greg KH:
 "Here are two tiny patches, one fixing up the drivers/Kconfig file, and
  one adding a MAINTAINERS entry for the UIO git tree"

* tag 'char-misc-3.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  drivers/Kconfig: remove duplicate entry for soc
  MAINTAINERS: add git url entry for UIO

9 years agoMerge tag 'staging-3.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh...
Linus Torvalds [Sat, 31 Jan 2015 03:44:56 +0000 (19:44 -0800)]
Merge tag 'staging-3.19-rc7' of git://git./linux/kernel/git/gregkh/staging

Pull staging tree fixes from Greg KH:
 "Here are two tiny staging tree fixes.  One for the nvec driver to
  resolve a reported problem, and one to add a MAINTAINERS entry for the
  Android drivers"

* tag 'staging-3.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  MAINTAINERS: add Android driver entries
  staging: nvec: specify a platform-device base id

9 years agoMerge tag 'usb-3.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Linus Torvalds [Sat, 31 Jan 2015 03:35:35 +0000 (19:35 -0800)]
Merge tag 'usb-3.19-rc7' of git://git./linux/kernel/git/gregkh/usb

Pull USB fixes from Greg KH:
 "Here are some small USB fixes and quirk additions for 3.19-rc7.

  All have been in linux-next for a while with no reported problems"

* tag 'usb-3.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  USB: Add OTG PET device to TPL
  usb-storage/SCSI: blacklist FUA on JMicron 152d:2566 USB-SATA controller
  uas: Add no-report-opcodes quirk for Simpletech devices with id 4971:8017
  storage: Revise/fix quirk for 04E6:000F SCM USB-SCSI converter
  usb: phy: never defer probe in non-OF case
  usb: dwc2: call dwc2_is_controller_alive() under spinlock

9 years agoMerge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 30 Jan 2015 22:34:55 +0000 (14:34 -0800)]
Merge branch 'perf-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull perf fixes from Ingo Molnar:
 "Mostly tooling fixes, but also an event groups fix, two PMU driver
  fixes and a CPU model variant addition"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf: Tighten (and fix) the grouping condition
  perf/x86/intel: Add model number for Airmont
  perf/rapl: Fix crash in rapl_scale()
  perf/x86/intel/uncore: Move uncore_box_init() out of driver initialization
  perf probe: Fix probing kretprobes
  perf symbols: Introduce 'for' method to iterate over the symbols with a given name
  perf probe: Do not rely on map__load() filter to find symbols
  perf symbols: Introduce method to iterate symbols ordered by name
  perf symbols: Return the first entry with a given name in find_by_name method
  perf annotate: Fix memory leaks in LOCK handling
  perf annotate: Handle ins parsing failures
  perf scripting perl: Force to use stdbool
  perf evlist: Remove extraneous 'was' on error message

9 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux...
Linus Torvalds [Fri, 30 Jan 2015 22:25:52 +0000 (14:25 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/mason/linux-btrfs

Pull btrfs fix from Chris Mason:
 "We have one more fix for btrfs in my for-linus branch - this was a bug
  in the new raid5/6 scrubbing support"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
  btrfs: fix raid56 scrub failed in xfstests btrfs/072

9 years agoMerge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Linus Torvalds [Fri, 30 Jan 2015 21:46:04 +0000 (13:46 -0800)]
Merge branch 'for_linus' of git://git./linux/kernel/git/jack/linux-fs

Pull quota and UDF fix from Jan Kara:
 "A fix for UDF to properly free preallocated blocks and a fix for quota
  so that Q_GETQUOTA quotactl reports correct numbers for XFS filesystem
  (and similarly Q_XGETQUOTA quotactl works properly for other
  filesystems)"

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
  quota: Switch ->get_dqblk() and ->set_dqblk() to use bytes as space units
  udf: Release preallocation on last writeable close

9 years agoiio: add driver for Freescale MMA9553
Irina Tirdea [Thu, 29 Jan 2015 18:45:10 +0000 (18:45 +0000)]
iio: add driver for Freescale MMA9553

Add support for Freescale MMA9553L Intelligent Pedometer Platform.

The following functionalities are supported:
 - step counter (counts the number of steps using a HW register)
 - step detector (generates an iio event at every step the user takes)
 - activity recognition (rest, walking, jogging, running)
 - speed
 - calories
 - distance

To get accurate pedometer results, the user's height, weight and gender
need to be configured.

The specifications can be downloaded from:
http://www.freescale.com/files/sensors/doc/ref_manual/MMA955xLSWRM.pdf
http://www.freescale.com/files/sensors/doc/ref_manual/MMA9553LSWRM.pdf

Signed-off-by: Irina Tirdea <irina.tirdea@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoMerge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Linus Torvalds [Fri, 30 Jan 2015 18:45:24 +0000 (10:45 -0800)]
Merge tag 'for-linus' of git://git./virt/kvm/kvm

Pull KVM fixes from Paolo Bonzini:
 "The ARM changes are largish, but not too scary.  And a simple fix for
  x86 (bug introduced in 3.19)"

(Paolo sayus these are the "Final" fixes. We'll see).

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: x86: check LAPIC presence when building apic_map
  arm/arm64: KVM: Use kernel mapping to perform invalidation on page fault
  arm/arm64: KVM: Invalidate data cache on unmap
  arm/arm64: KVM: Use set/way op trapping to track the state of the caches

9 years agoMerge tag 'iommu-fixes-v3.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 30 Jan 2015 18:41:26 +0000 (10:41 -0800)]
Merge tag 'iommu-fixes-v3.19-rc6' of git://git./linux/kernel/git/joro/iommu

Pull IOMMU fixes from Joerg Roedel:
 "Two small fixes for the Tegra GART IOMMU driver:

   - provide a .map_sg function for iommu_ops
   - do not register Tegra GART driver as a workaround because of issues
     with it when used from DRM code"

* tag 'iommu-fixes-v3.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
  iommu/tegra: gart: Provide default ->map_sg() callback
  iommu/tegra: gart: Do not register with bus

9 years agoMerge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Linus Torvalds [Fri, 30 Jan 2015 18:34:24 +0000 (10:34 -0800)]
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux

Pull intel and dp mst drm fixes from Dave Airlie:
 "Intel had a few more fixes lined up and no point me sitting on them,
  along with a DP MST fix from Rob for a race at undock + vt switch"

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  drm: fix fb-helper vs MST dangling connector ptrs (v2)
  drm/i915: BDW Fix Halo PCI IDs marked as ULT.
  drm/i915: Fix and clean BDW PCH identification
  drm/i915: Only fence tiled region of object.
  drm/i915: fix inconsistent brightness after resume
  drm/i915: Init PPGTT before context enable

9 years agoarc: mm: Fix build failure
Guenter Roeck [Fri, 30 Jan 2015 03:15:33 +0000 (19:15 -0800)]
arc: mm: Fix build failure

Fix misspelled define.

Fixes: 33692f27597f ("vm: add VM_FAULT_SIGSEGV handling support")
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
9 years agoi2c: sh_mobile: terminate DMA reads properly
Wolfram Sang [Thu, 29 Jan 2015 17:33:16 +0000 (18:33 +0100)]
i2c: sh_mobile: terminate DMA reads properly

DMA read requests could miss proper termination, so two more bytes would
have been read via PIO overwriting the end of the buffer with wrong
data. Make DMA stop handling more readable while we are here.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
9 years agoKVM: x86: check LAPIC presence when building apic_map
Radim Krčmář [Thu, 29 Jan 2015 21:33:35 +0000 (22:33 +0100)]
KVM: x86: check LAPIC presence when building apic_map

We forgot to re-check LAPIC after splitting the loop in commit
173beedc1601 (KVM: x86: Software disabled APIC should still deliver
NMIs, 2014-11-02).

Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Fixes: 173beedc1601f51dae9d579aa7a414c5aa8f700b
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
9 years agoMerge tag 'kvm-arm-fixes-3.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git...
Paolo Bonzini [Fri, 30 Jan 2015 08:41:38 +0000 (09:41 +0100)]
Merge tag 'kvm-arm-fixes-3.19-2' of git://git./linux/kernel/git/kvmarm/kvmarm into kvm-master

Second round of fixes for KVM/ARM for 3.19.

Fixes memory corruption issues on APM platforms and swapping issues on
DMA-coherent systems.

9 years agoMerge tag 'drm-intel-fixes-2015-01-29' of git://anongit.freedesktop.org/drm-intel...
Dave Airlie [Fri, 30 Jan 2015 03:32:24 +0000 (13:32 +1000)]
Merge tag 'drm-intel-fixes-2015-01-29' of git://anongit.freedesktop.org/drm-intel into drm-fixes

misc i915 fixes, mostly all stable material as well.

* tag 'drm-intel-fixes-2015-01-29' of git://anongit.freedesktop.org/drm-intel:
  drm/i915: BDW Fix Halo PCI IDs marked as ULT.
  drm/i915: Fix and clean BDW PCH identification
  drm/i915: Only fence tiled region of object.
  drm/i915: fix inconsistent brightness after resume
  drm/i915: Init PPGTT before context enable

9 years agodrm: fix fb-helper vs MST dangling connector ptrs (v2)
Rob Clark [Mon, 26 Jan 2015 15:11:08 +0000 (10:11 -0500)]
drm: fix fb-helper vs MST dangling connector ptrs (v2)

VT switch back/forth from console to xserver (for example) has potential
to go horribly wrong if a dynamic DP MST connector ends up in the saved
modeset that is restored when switching back to fbcon.

When removing a dynamic connector, don't forget to clean up the saved
state.

v1: original
v2: null out set->fb if no more connectors to avoid making i915 cranky

Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1184968
Cc: stable@vger.kernel.org #v3.17+
Signed-off-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
9 years agoMerge tag 'dm-3.19-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/device...
Linus Torvalds [Thu, 29 Jan 2015 23:41:27 +0000 (15:41 -0800)]
Merge tag 'dm-3.19-fixes-3' of git://git./linux/kernel/git/device-mapper/linux-dm

Pull device mapper fixes from Mike Snitzer:
 "One stable fix for a dm-cache 3.19-rc6 regression and one stable fix
  for dm-thin:

   - fix DM cache metadata open/lookup error paths to properly use
     ERR_PTR and IS_ERR (fixes: 3.19-rc6 "stable" commit 9b1cc9f251)

   - fix DM thin-provisioning to disallow userspace from sending
     messages to the thin-pool if the pool is in READ_ONLY or FAIL mode
     since no metadata changes are allowed in these modes"

* tag 'dm-3.19-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
  dm thin: don't allow messages to be sent to a pool target in READ_ONLY or FAIL mode
  dm cache: fix missing ERR_PTR returns and handling

9 years agoMerge tag 'nfs-for-3.19-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Linus Torvalds [Thu, 29 Jan 2015 23:18:12 +0000 (15:18 -0800)]
Merge tag 'nfs-for-3.19-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

Pull NFS client bugfixes from Trond Myklebust:
 "Highlights include:

   - Stable fix for a NFSv4.1 Oops on mount
   - Stable fix for an O_DIRECT deadlock condition
   - Fix an issue with submounted volumes and fake duplicate inode
     numbers"

* tag 'nfs-for-3.19-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
  NFS: Fix use of nfs_attr_use_mounted_on_fileid()
  NFSv4.1: Fix an Oops in nfs41_walk_client_list
  nfs: fix dio deadlock when O_DIRECT flag is flipped

9 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph...
Linus Torvalds [Thu, 29 Jan 2015 23:13:56 +0000 (15:13 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/sage/ceph-client

Pull Ceph fixes from Sage Weil:
 "These paches from Ilya finally squash a race condition with layered
  images that he's been chasing for a while"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
  rbd: drop parent_ref in rbd_dev_unprobe() unconditionally
  rbd: fix rbd_dev_parent_get() when parent_overlap == 0

9 years agoarm/arm64: KVM: Use kernel mapping to perform invalidation on page fault
Marc Zyngier [Mon, 5 Jan 2015 21:13:24 +0000 (21:13 +0000)]
arm/arm64: KVM: Use kernel mapping to perform invalidation on page fault

When handling a fault in stage-2, we need to resync I$ and D$, just
to be sure we don't leave any old cache line behind.

That's very good, except that we do so using the *user* address.
Under heavy load (swapping like crazy), we may end up in a situation
where the page gets mapped in stage-2 while being unmapped from
userspace by another CPU.

At that point, the DC/IC instructions can generate a fault, which
we handle with kvm->mmu_lock held. The box quickly deadlocks, user
is unhappy.

Instead, perform this invalidation through the kernel mapping,
which is guaranteed to be present. The box is much happier, and so
am I.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
9 years agoarm/arm64: KVM: Invalidate data cache on unmap
Marc Zyngier [Fri, 19 Dec 2014 16:48:06 +0000 (16:48 +0000)]
arm/arm64: KVM: Invalidate data cache on unmap

Let's assume a guest has created an uncached mapping, and written
to that page. Let's also assume that the host uses a cache-coherent
IO subsystem. Let's finally assume that the host is under memory
pressure and starts to swap things out.

Before this "uncached" page is evicted, we need to make sure
we invalidate potential speculated, clean cache lines that are
sitting there, or the IO subsystem is going to swap out the
cached view, loosing the data that has been written directly
into memory.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
9 years agoarm/arm64: KVM: Use set/way op trapping to track the state of the caches
Marc Zyngier [Fri, 19 Dec 2014 16:05:31 +0000 (16:05 +0000)]
arm/arm64: KVM: Use set/way op trapping to track the state of the caches

Trying to emulate the behaviour of set/way cache ops is fairly
pointless, as there are too many ways we can end-up missing stuff.
Also, there is some system caches out there that simply ignore
set/way operations.

So instead of trying to implement them, let's convert it to VA ops,
and use them as a way to re-enable the trapping of VM ops. That way,
we can detect the point when the MMU/caches are turned off, and do
a full VM flush (which is what the guest was trying to do anyway).

This allows a 32bit zImage to boot on the APM thingy, and will
probably help bootloaders in general.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
9 years agoMerge tag 'sound-3.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai...
Linus Torvalds [Thu, 29 Jan 2015 19:48:36 +0000 (11:48 -0800)]
Merge tag 'sound-3.19-rc7' of git://git./linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "This batch ended up being larger than wished, but there is nothing to
  worry too much there.

  Most of commits are for ASoC, a compress NULL dereference fix, a fix
  for probe error handling, and the rest are device-specific fixes.  In
  addition, we have a fix for a long-standing but of seq-dummy driver,
  which just cuts off the buggy part in the end"

* tag 'sound-3.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: seq-dummy: remove deadlock-causing events on close
  ASoC: omap-mcbsp: Correct CBM_CFS dai format configuration
  ASoC: soc-compress.c: fix NULL dereference
  ASoC: rt286: set the same format for dac and adc
  ASoC: wm8904: fix runtime warning
  ASoC: simple-card: Fix crash in asoc_simple_card_unref()
  ASoC: fsl: imx-wm8962: Set the card owner field
  ASoC: pcm512x: Fix DSP program selection
  ASoC: rt5677: Modify the behavior that updates the PLL parameter.
  ASoC: fsl_ssi: Fix irq error check
  ASoC: rockchip: i2s: applys rate symmetry for CPU DAI
  ASoC: Intel: Add NULL checks for the stream pointer
  ASoC: wm8960: Fix capture sample rate from 11250 to 11025
  ASoC: adi: Add missing return statement.
  ASoC: Intel: Don't change offset of block allocator during fixed allocate
  ASoC: ts3a227e: Check and report jack status at probe
  ASoC: fsl_esai: Fix incorrect xDC field width of xCCR registers

9 years agoMerge tag 'pinctrl-v3.19-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw...
Linus Torvalds [Thu, 29 Jan 2015 19:43:43 +0000 (11:43 -0800)]
Merge tag 'pinctrl-v3.19-4' of git://git./linux/kernel/git/linusw/linux-pinctrl

Pull final pin control fix from Linus Walleij:
 "A late pin control fix for the v3.19 series: The AT91 gpio controller
  would miss wakeup events, this single fix make it work properly"

[ "Final"? Yeah, I'll believe that once I've actually released 3.19 ;)   - Linus ]

* tag 'pinctrl-v3.19-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
  pinctrl: at91: allow to have disabled gpio bank

9 years agovm: make stack guard page errors return VM_FAULT_SIGSEGV rather than SIGBUS
Linus Torvalds [Thu, 29 Jan 2015 19:15:17 +0000 (11:15 -0800)]
vm: make stack guard page errors return VM_FAULT_SIGSEGV rather than SIGBUS

The stack guard page error case has long incorrectly caused a SIGBUS
rather than a SIGSEGV, but nobody actually noticed until commit
fee7e49d4514 ("mm: propagate error from stack expansion even for guard
page") because that error case was never actually triggered in any
normal situations.

Now that we actually report the error, people noticed the wrong signal
that resulted.  So far, only the test suite of libsigsegv seems to have
actually cared, but there are real applications that use libsigsegv, so
let's not wait for any of those to break.

Reported-and-tested-by: Takashi Iwai <tiwai@suse.de>
Tested-by: Jan Engelhardt <jengelh@inai.de>
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com> # "s390 still compiles and boots"
Cc: linux-arch@vger.kernel.org
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
9 years agoarm: dma-mapping: Set DMA IOMMU ops in arm_iommu_attach_device()
Laurent Pinchart [Fri, 23 Jan 2015 14:21:49 +0000 (16:21 +0200)]
arm: dma-mapping: Set DMA IOMMU ops in arm_iommu_attach_device()

Commit 4bb25789ed28228a ("arm: dma-mapping: plumb our iommu mapping ops
into arch_setup_dma_ops") moved the setting of the DMA operations from
arm_iommu_attach_device() to arch_setup_dma_ops() where the DMA
operations to be used are selected based on whether the device is
connected to an IOMMU. However, the IOMMU detection scheme requires the
IOMMU driver to be ported to the new IOMMU of_xlate API. As no driver
has been ported yet, this effectively breaks all IOMMU ARM users that
depend on the IOMMU being handled transparently by the DMA mapping API.

Fix this by restoring the setting of DMA IOMMU ops in
arm_iommu_attach_device() and splitting the rest of the function into a
new internal __arm_iommu_attach_device() function, called by
arch_setup_dma_ops().

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Olof Johansson <olof@lixom.net>
9 years agovm: add VM_FAULT_SIGSEGV handling support
Linus Torvalds [Thu, 29 Jan 2015 18:51:32 +0000 (10:51 -0800)]
vm: add VM_FAULT_SIGSEGV handling support

The core VM already knows about VM_FAULT_SIGBUS, but cannot return a
"you should SIGSEGV" error, because the SIGSEGV case was generally
handled by the caller - usually the architecture fault handler.

That results in lots of duplication - all the architecture fault
handlers end up doing very similar "look up vma, check permissions, do
retries etc" - but it generally works.  However, there are cases where
the VM actually wants to SIGSEGV, and applications _expect_ SIGSEGV.

In particular, when accessing the stack guard page, libsigsegv expects a
SIGSEGV.  And it usually got one, because the stack growth is handled by
that duplicated architecture fault handler.

However, when the generic VM layer started propagating the error return
from the stack expansion in commit fee7e49d4514 ("mm: propagate error
from stack expansion even for guard page"), that now exposed the
existing VM_FAULT_SIGBUS result to user space.  And user space really
expected SIGSEGV, not SIGBUS.

To fix that case, we need to add a VM_FAULT_SIGSEGV, and teach all those
duplicate architecture fault handlers about it.  They all already have
the code to handle SIGSEGV, so it's about just tying that new return
value to the existing code, but it's all a bit annoying.

This is the mindless minimal patch to do this.  A more extensive patch
would be to try to gather up the mostly shared fault handling logic into
one generic helper routine, and long-term we really should do that
cleanup.

Just from this patch, you can generally see that most architectures just
copied (directly or indirectly) the old x86 way of doing things, but in
the meantime that original x86 model has been improved to hold the VM
semaphore for shorter times etc and to handle VM_FAULT_RETRY and other
"newer" things, so it would be a good idea to bring all those
improvements to the generic case and teach other architectures about
them too.

Reported-and-tested-by: Takashi Iwai <tiwai@suse.de>
Tested-by: Jan Engelhardt <jengelh@inai.de>
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com> # "s390 still compiles and boots"
Cc: linux-arch@vger.kernel.org
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
9 years agoiio: Documentation: Fix calibheight unit
Irina Tirdea [Tue, 27 Jan 2015 18:41:53 +0000 (20:41 +0200)]
iio: Documentation: Fix calibheight unit

Change calibheight unit from centimeters to meters
to follow iio guidelines of using SI units.

Signed-off-by: Irina Tirdea <irina.tirdea@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio: core: Introduce IIO_CHAN_INFO_DEBOUNCE_COUNT and _TIME
Irina Tirdea [Tue, 27 Jan 2015 18:41:52 +0000 (20:41 +0200)]
iio: core: Introduce IIO_CHAN_INFO_DEBOUNCE_COUNT and _TIME

The pedometer needs to filter out false steps that might be generated by
tapping the foot, sitting, etc. To do that it computes the number of
steps that occur in a given time and decides the user is moving only
if this value is over a threshold. E.g.: the user starts moving only
if he takes 4 steps in 3 seconds. This filter is applied only when
the user starts moving.

A device that has such pedometer functionality is Freescale's MMA9553L:
http://www.freescale.com/files/sensors/doc/ref_manual/MMA9553LSWRM.pdf.

To export this feature, this patch introduces IIO_CHAN_INFO_DEBOUNCE_COUNT
and IIO_CHAN_INFO_DEBOUNCE_TIME. For the pedometer, in_steps_debounce_count
will specify the number of steps that need to occur in
in_steps_debounce_time seconds so that the pedometer decides the user is
moving.

Signed-off-by: Irina Tirdea <irina.tirdea@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio: common: ssp_sensors: Add sensorhub gyroscope sensor
Karol Wrona [Wed, 28 Jan 2015 14:05:54 +0000 (15:05 +0100)]
iio: common: ssp_sensors: Add sensorhub gyroscope sensor

This patch adds gyroscope iio driver which uses sensorhub as data
provider.

Signed-off-by: Karol Wrona <k.wrona@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio: common: ssp_sensors: Add sensorhub accelerometer sensor
Karol Wrona [Wed, 28 Jan 2015 14:05:53 +0000 (15:05 +0100)]
iio: common: ssp_sensors: Add sensorhub accelerometer sensor

This patch adds accelerometer iio driver which uses sensorhub as data
provider.

Signed-off-by: Karol Wrona <k.wrona@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio: common: ssp_sensors: Add sensorhub iio commons
Karol Wrona [Wed, 28 Jan 2015 14:05:52 +0000 (15:05 +0100)]
iio: common: ssp_sensors: Add sensorhub iio commons

This patch adds common library for sensorhub iio drivers.

Signed-off-by: Karol Wrona <k.wrona@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio: sensorhub: Add sensorhub bindings
Karol Wrona [Wed, 28 Jan 2015 14:05:51 +0000 (15:05 +0100)]
iio: sensorhub: Add sensorhub bindings

Add sensorhub bindings for sensorhub on Galaxy Gear 2.

Signed-off-by: Karol Wrona <k.wrona@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio: common: ssp_sensors: Add sensorhub driver
Karol Wrona [Wed, 28 Jan 2015 14:05:50 +0000 (15:05 +0100)]
iio: common: ssp_sensors: Add sensorhub driver

Sensorhub  is MCU dedicated to collect data and manage several sensors.
Sensorhub is a spi device which provides a layer for IIO devices. It provides
some data parsing and common mechanism for sensorhub sensors.

Adds common sensorhub library for sensorhub driver and iio drivers
which uses sensorhub MCU to communicate with sensors.

Signed-off-by: Karol Wrona <k.wrona@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio: adc: Cosmic Circuits 10001 ADC driver
Phani Movva [Tue, 6 Jan 2015 20:47:35 +0000 (17:47 -0300)]
iio: adc: Cosmic Circuits 10001 ADC driver

This commit adds support for Cosmic Circuits 10001 10-bit ADC device.

Reviewed-by: Andrew Bresticker <abrestic@chromium.org>
Signed-off-by: Phani Movva <Phani.Movva@imgtec.com>
Signed-off-by: Naidu Tellapati <Naidu.Tellapati@imgtec.com>
[ezequiel: code style cleaning]
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@imgtec.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoARM: shmobile: r8a7790: Instantiate GIC from C board code in legacy builds
Magnus Damm [Thu, 29 Jan 2015 07:25:32 +0000 (16:25 +0900)]
ARM: shmobile: r8a7790: Instantiate GIC from C board code in legacy builds

As of commit 9a1091ef0017c40a ("irqchip: gic: Support hierarchy irq
domain."), the Lager legacy board support is known to be broken.

The IRQ numbers of the GIC are now virtual, and no longer match the
hardcoded hardware IRQ numbers in the legacy platform board code.

To fix this issue specific to non-multiplatform r8a7790 and Lager:
 1) Instantiate the GIC from platform board code and also
 2) Skip over the DT arch timer as well as
 3) Force delay setup based on DT CPU frequency

With these 3 fixes in place interrupts on Lager are now unbroken.

Partially based on legacy GIC fix by Geert Uytterhoeven, thanks to
him for the initial work.

Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
9 years agoARM: shmobile: r8a73a4: Instantiate GIC from C board code in legacy builds
Magnus Damm [Wed, 28 Jan 2015 12:46:45 +0000 (21:46 +0900)]
ARM: shmobile: r8a73a4: Instantiate GIC from C board code in legacy builds

As of commit 9a1091ef0017c40a ("irqchip: gic: Support hierarchy irq
domain."), the APE6EVM legacy board support is known to be broken.

The IRQ numbers of the GIC are now virtual, and no longer match the
hardcoded hardware IRQ numbers in the legacy platform board code.

To fix this issue specific to non-muliplatform r8a73a4 and APE6EVM:
 1) Instantiate the GIC from platform board code and also
 2) Skip over the DT arch timer as well as
 3) Force delay setup based on DT CPU frequency

With these 3 fixes in place interrupts on APE6EVM are now unbroken.

Partially based on legacy GIC fix by Geert Uytterhoeven, thanks to
him for the initial work.

Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
9 years agoMerge tag 'mvebu-fixes-3.19-6' of git://git.infradead.org/linux-mvebu into fixes
Olof Johansson [Wed, 28 Jan 2015 22:59:33 +0000 (14:59 -0800)]
Merge tag 'mvebu-fixes-3.19-6' of git://git.infradead.org/linux-mvebu into fixes

Merge "mvebu-fixes-6" from Andrew Lunn:

The previous fix for Armada XP, disabling I/O coherency, broke Armada
375/38x.  Only switch the PL310 to I/O coherent mode if I/O coherency
is enabled.

* tag 'mvebu-fixes-3.19-6' of git://git.infradead.org/linux-mvebu:
  ARM: mvebu: don't set the PL310 in I/O coherency mode when I/O coherency is disabled

Signed-off-by: Olof Johansson <olof@lixom.net>
9 years agostaging: Remove logger and alarm-dev from android Makefile
John Stultz [Tue, 27 Jan 2015 15:22:21 +0000 (07:22 -0800)]
staging: Remove logger and alarm-dev from android Makefile

My previous patches deleting logger and alarm-dev from staging
missed the android Makefile.

This patch cleans up the Makefile to remove the now non-existent
files.

Cc: Rom Lemarchand <romlem@google.com>,
Cc: Mark Salyzyn <salyzyn@google.com>,
Cc: Kees Cook <keescook@chromium.org>,
Cc: Android Kernel Team <kernel-team@android.com>,
Cc: Valentin Rothberg <valentinrothberg@gmail.com>,
Cc: Greg Hackmann <ghackmann@google.com>,
Cc: Elliott Hughes <enh@google.com>,
Cc: Todd Poynor <toddpoynor@google.com>,
Reported-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agostaging: Remove the Android logger driver
John Stultz [Mon, 26 Jan 2015 20:07:32 +0000 (12:07 -0800)]
staging: Remove the Android logger driver

With the relase of Lollipop, Android no longer
requires the logger driver.

There are three patches which the android dev's
still need before they drop logger on all their
devices:

[PATCH v4 1/5] pstores: use scnprintf
[PATCH v2 2/5] pstore: remove superfluous memory size check
[PATCH 3/5] pstore: handle zero-sized prz in series
[PATCH v4 4/5] pstore: add pmsg
[PATCH 5/5] pstore: selinux: add security in-core xattr support for pstore and debugfs

But these seem to have been acked and are hopefully
queued for upstream.

So this patch removes the logger driver from staging.

Cc: Rom Lemarchand <romlem@google.com>,
Cc: Mark Salyzyn <salyzyn@google.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Android Kernel Team <kernel-team@android.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agostaging: fbtft: remove redundant .owner
Heba Aamer [Wed, 28 Jan 2015 13:29:05 +0000 (15:29 +0200)]
staging: fbtft: remove redundant .owner

This patch fixes the following coccicheck warning:
No need to set .owner here. The core will do it.

Signed-off-by: Heba Aamer <heba93aamer@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agostaging: fbtft: fix trailing whitespace
Heba Aamer [Tue, 27 Jan 2015 20:46:25 +0000 (22:46 +0200)]
staging: fbtft: fix trailing whitespace

This patch fixes the following checkpatch.pl error:
fix trailing whitespace

Signed-off-by: Heba Aamer <heba93aamer@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agostaging: fbtft: fix do not initialise statics to 0 or NULL
Heba Aamer [Tue, 27 Jan 2015 20:42:59 +0000 (22:42 +0200)]
staging: fbtft: fix do not initialise statics to 0 or NULL

This patch fixes the following checkpatch.pl error:
fix do not initialise statics to 0 or NULL

Signed-off-by: Heba Aamer <heba93aamer@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agostaging: fbtft: fix Macros with complex values should be enclosed in parentheses
Heba Aamer [Tue, 27 Jan 2015 20:39:56 +0000 (22:39 +0200)]
staging: fbtft: fix Macros with complex values should be enclosed in parentheses

This patch fixes the following checkpatch.pl error:
fix Macros with complex values should be enclosed in parentheses

Signed-off-by: Heba Aamer <heba93aamer@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agostaging: fbtft: fix spaces required around that '<'
Heba Aamer [Tue, 27 Jan 2015 20:37:24 +0000 (22:37 +0200)]
staging: fbtft: fix spaces required around that '<'

This patch fixes the following checkpatch.pl error:
fix spaces required around that '<'

Signed-off-by: Heba Aamer <heba93aamer@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agostaging: fbtft: fix spaces required around that '='
Heba Aamer [Tue, 27 Jan 2015 20:35:30 +0000 (22:35 +0200)]
staging: fbtft: fix spaces required around that '='

This patch fixes the following checkpatch.pl error:
fix spaces required around that '='

Signed-off-by: Heba Aamer <heba93aamer@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agostaging: fbtft: fix space required after that ';'
Heba Aamer [Tue, 27 Jan 2015 20:33:03 +0000 (22:33 +0200)]
staging: fbtft: fix space required after that ';'

This patch fixes the following checkpatch.pl error:
fix space required after that ';'

Signed-off-by: Heba Aamer <heba93aamer@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agodrivers/staging: use current->state helpers
Davidlohr Bueso [Mon, 26 Jan 2015 10:15:02 +0000 (02:15 -0800)]
drivers/staging: use current->state helpers

Call __set_current_state() instead of assigning the new state directly.
These interfaces also aid CONFIG_DEBUG_ATOMIC_SLEEP environments,
keeping track of who changed the state.

Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agostaging: vt6655: fix that open brace { should be on the previous line
Mariam Mohamed Fawzy [Mon, 26 Jan 2015 09:24:36 +0000 (11:24 +0200)]
staging: vt6655: fix that open brace { should be on the previous line

This patch fixes the following checkpatch.pl error:
fix that open brace { should be on the previous line

Signed-off-by: Mariam Mohamed Fawzy <maryammohamed61@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agostaging: flexfb: Remove initialization to 0
Mauro Stettler [Sun, 25 Jan 2015 11:26:17 +0000 (20:26 +0900)]
staging: flexfb: Remove initialization to 0

(the initial post had a typo in the short summary, reposting)

This fixes some of the code style issues in the flexfb driver by removing
unnecessary initializations of static variables to 0 or to NULL.

Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Noralf Tronnes <notro@tronnes.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agostaging: comedi: comedi_compat32.c: absorb raw_ioctl()
Ian Abbott [Tue, 27 Jan 2015 18:16:56 +0000 (18:16 +0000)]
staging: comedi: comedi_compat32.c: absorb raw_ioctl()

`comedi_compat_ioctl()` just calls static inline function `raw_ioctl()`
with the same parameters (although the former returns a `long` and the
latter returns an `int`).  Since `raw_ioctl()` is not called from
anywhere else, just absorb its body into `comedi_compat_ioctl()`.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agostaging: comedi: comedi_compat32.c: align some comments
Ian Abbott [Tue, 27 Jan 2015 18:16:55 +0000 (18:16 +0000)]
staging: comedi: comedi_compat32.c: align some comments

Align some comments attached to members of the 32-bit compatibility
structure definitions.  These comments describe the original pointer
types that are being represented by a `compat_uptr_t`.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agostaging: comedi: comedi_compat32.c: reformat other block comments
Ian Abbott [Tue, 27 Jan 2015 18:16:54 +0000 (18:16 +0000)]
staging: comedi: comedi_compat32.c: reformat other block comments

Use the usual block comment style.  Combine some consecutive comments
into block comments.  Also remove part of a comment referring to
`ptr_to_compat()` not being implemented until kernel version 2.6.11 as
it's irrelevant.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agostaging: comedi: comedi_compat32.c: reformat copyright comment
Ian Abbott [Tue, 27 Jan 2015 18:26:55 +0000 (18:26 +0000)]
staging: comedi: comedi_compat32.c: reformat copyright comment

Use the usual block comment style.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agostaging: comedi: comedi_compat32.h: reformat copyright comment
Ian Abbott [Tue, 27 Jan 2015 18:16:52 +0000 (18:16 +0000)]
staging: comedi: comedi_compat32.h: reformat copyright comment

Use the usual block comment style.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agostaging: comedi: comedi_compat32.c: fix COMEDI_CMD copy back
Ian Abbott [Tue, 27 Jan 2015 18:16:51 +0000 (18:16 +0000)]
staging: comedi: comedi_compat32.c: fix COMEDI_CMD copy back

`do_cmd_ioctl()` in "comedi_fops.c" handles the `COMEDI_CMD` ioctl.
This returns `-EAGAIN` if it has copied a modified `struct comedi_cmd`
back to user-space.  (This occurs when the low-level Comedi driver's
`do_cmdtest()` handler returns non-zero to indicate a problem with the
contents of the `struct comedi_cmd`, or when the `struct comedi_cmd` has
the `CMDF_BOGUS` flag set.)

`compat_cmd()` in "comedi_compat32.c" handles the 32-bit compatible
version of the `COMEDI_CMD` ioctl.  Currently, it never copies a 32-bit
compatible version of `struct comedi_cmd` back to user-space, which is
at odds with the way the regular `COMEDI_CMD` ioctl is handled.  To fix
it, change `compat_cmd()` to copy a 32-bit compatible version of the
`struct comedi_cmd` back to user-space when the main ioctl handler
returns `-EAGAIN`.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agostaging: comedi: comedi_usb.h: move USB stuff out of comedidev.h
Ian Abbott [Tue, 27 Jan 2015 17:49:09 +0000 (17:49 +0000)]
staging: comedi: comedi_usb.h: move USB stuff out of comedidev.h

Move the USB-specific stuff out of "comedidev.h" into "comedi_usb.h".
Comedi USB drivers now include "comedi_usb.h" instead of "comedidev.h",
which now gets pulled in indirectly.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agostaging: comedi: vmk80xx: include new "comedi_usb.h" header
Ian Abbott [Tue, 27 Jan 2015 17:49:08 +0000 (17:49 +0000)]
staging: comedi: vmk80xx: include new "comedi_usb.h" header

Include the new "../comedi_usb.h" header instead of <linux/usb.h> and
"../comedidev.h", which will now get included indirectly.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agostaging: comedi: usbduxsigma: include new "comedi_usb.h" header
Ian Abbott [Tue, 27 Jan 2015 17:49:07 +0000 (17:49 +0000)]
staging: comedi: usbduxsigma: include new "comedi_usb.h" header

Include the new "../comedi_usb.h" header instead of <linux/usb.h> and
"../comedidev.h", which will now get included indirectly.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agostaging: comedi: usbduxfast: include new "comedi_usb.h" header
Ian Abbott [Tue, 27 Jan 2015 17:49:06 +0000 (17:49 +0000)]
staging: comedi: usbduxfast: include new "comedi_usb.h" header

Include the new "../comedi_usb.h" header instead of <linux/usb.h> and
"../comedidev.h", which will now get included indirectly.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>