staging: zcache: fix possible sleep under lock

zcache_new_pool() calls kmalloc() with GFP_KERNEL which has
__GFP_WAIT set.  However, zcache_new_pool() gets called on
a stack that holds the swap_lock spinlock, leading to a
possible sleep-with-lock situation. The lock is obtained
in enable_swap_info().

The patch replaces GFP_KERNEL with GFP_ATOMIC.

v2: replace with GFP_ATOMIC, not GFP_IOFS

Signed-off-by: Seth Jennings <sjenning@linux.vnet.ibm.com>
Acked-by: Dan Magenheimer <dan.magenheimer@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/rtl8192u: Don't pass huge struct by value

struct ieee80211_network is fairly large (more than half a kilobyte),
so let's pass a pointer instead of passing the entire structure by
value when ieee80211_is_54g() and ieee80211_is_shortslot() need to
look at a few members.
Also remove parentheses around the values being returned from those
two functions - 'return' is not a function.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/rtl8187se: Don't pass huge struct by value

struct ieee80211_network is fairly large (more than half a kilobyte),
so let's pass a pointer instead of passing the entire structure by
value when ieee80211_is_54g() and ieee80211_is_shortslot() need to
look at a few members.
Also remove parentheses around the values being returned from those
two functions - 'return' is not a function.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/usbip/userspace/libsrc/vhci_driver.c: test the just-initialized value

Test the just-initialized value rather than some other one.

The semantic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@r@
identifier x,y,f!={PTR_ERR,ERR_PTR,ERR_CAST};
statement S;
@@

x = f(...);
(
if (\(x == NULL\|IS_ERR(x)\)) S
|
*if (\(y == NULL\|IS_ERR(y)\))
 { ... when != x
   return ...; }
)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Acked-by: David Chang <dchang@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging: usbip: Add header guards to stub.h and vhci.h

stub.h and vhci.h are missing proper #ifndef/#define header guards, so
add them.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging: usbip: add a usbip protocol document

Initial version of USBIP protocol document.

Signed-off-by: David Chang <dchang@suse.com>
Acked-by: matt mooney <mfm@muteddisk.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging: usbip: userspace: Check return value for mkdir()

mkdir() could fail, so we should check its return value.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

Staging: usbip: Fix braces and spaces to match coding style.

Fix brace positioning and spaces at the start of lines in order to
comply with the kernel coding style.

Signed-off-by: Akshay Joshi <me@akshayjoshi.com>
Acked-by: matt mooney <mfm@muteddisk.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

Staging: usbip: Remove trailing spaces.

Remove trailing spaces to comply with the kernel coding style.

Signed-off-by: Akshay Joshi <me@akshayjoshi.com>
Acked-by: matt mooney <mfm@muteddisk.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

Staging: keucr: fix comments, braces, whitespaces coding style issue in tm6000.h

This is a patch to the smilsub.c file that fixed up comment, braces,
whitespaces error found by the checkpatch.pl tools.

Signed-off-by: Ruslan Pisarev <ruslan@rpisarev.org.ua>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

Staging: keucr: Remove dead (comment) code in drivers/staging/keucr/smilsub.c

Remove dead (comment) code in drivers/staging/keucr/smilsub.c

Signed-off-by: Ruslan Pisarev <ruslan@rpisarev.org.ua>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

Staging: keucr: Coding style fixes in scsiglue.c

Fixed macros in scsiglue.c

Signed-off-by: Ruslan Pisarev <ruslan@rpisarev.org.ua>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

Staging: keucr: Coding style fixes in smil.h

Fixed brace style in smil.h

Signed-off-by: Ruslan Pisarev <ruslan@rpisarev.org.ua>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

Staging: keucr: Coding style fixes in smscsi.c

I fixed whitespace, brace style and commetnt in smscsi.c

Signed-off-by: Ruslan Pisarev <ruslan@rpisarev.org.ua>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging: olpc_dcon: replace remaining calls to i2c_smbus_read/write

Use dcon_read and dcon_write; shorter, and understands the dcon_priv
struct.  This transition was started long ago.  This converts the
last few i2c_smbus_* callers.

Signed-off-by: Andres Salomon <dilinger@queued.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging: olpc_dcon: drop support for DCON v1

The v1 DCONs only existed for XO-1 prototypes (and even then, very very
early prototypes).  Drop support for v1 DCON.

Signed-off-by: Andres Salomon <dilinger@queued.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging: olpc_dcon: remove noinit module variable

This came from Jordan's original 2007 gxfb_dcon commit.  I've never
seen or heard of it actually being used.  Presumably it was once
useful for skipping hardware initialization when reloading the module
over and over during driver development..

Signed-off-by: Andres Salomon <dilinger@queued.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging: vt6656: use %pM for printing MACs

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging: vt6655: simplify MAC printing by using %pM

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging: zram: make global var "num_devices" use unique name

The global variable "num_devices" is too general to be
global. This patch switches the name to be "zram_num_devices".

Signed-off-by: Noah Watkins <noahwatkins@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging: zram: make global var "devices" use unique name

The global variable "devices" is too general to be global.
This patch switches the name to be "zram_devices".

Signed-off-by: Noah Watkins <noahwatkins@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging: remove ath6kl

ath6kl is now in drivers/net/wireless/ath so the staging driver
is not supported anymore and should be removed.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

Staging: pohmelfs: Coding style fixes in trans.c

I fixed whitespace in drivers/staging/pohmelfs/trans.c

Signed-off-by: Ruslan Pisarev <ruslan@rpisarev.org.ua>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging: xgifb: replace video_type with FB_TYPE_PACKED_PIXELS

Replace a global variable with a constant.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Reviewed-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging: xgifb: probe: delete checks for mode "none"

The driver does not allow selecting the mode "none", so no need to check
for that in probe.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Reviewed-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging: xgifb: eliminate #ifdef XGIFB_PAN

XGIFB_PAN is always defined and checks can be eliminated.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Reviewed-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging: xgifb: delete unused structs

Delete unused struct declarations.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Reviewed-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging: xgifb: vb_table: delete unused data

Delete unused data.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Reviewed-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging: xgifb: delete unused definitions

Delete some more unused definitions.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Reviewed-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging: xgifb: delete duplicate #defines

Delete duplicate identical #defines.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Reviewed-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging: xgifb: eliminate #ifdef NewScratch

NewScratch is always defined so all checks can be eliminated.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Reviewed-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

Staging: xgifb: Delete define XGIINITSTATIC in XGI_main_26.c and XGI_main.h

This is a patch to the XGI_main.h and XGI_main_26.c file that fixed up a define warrning found by the checkpatch.pl tools.

Signed-off-by: Ruslan Pisarev <ruslan@rpisarev.org.ua>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

Staging: xgifb: Fixed up a errors "do not initialise statics to 0 or NULL" in XGI_main_26.c

This is a patch to the XGI_main_26.c file that fixed up a errors "do not initialise statics to 0 or NULL" found by the checkpatch.pl tools.

Signed-off-by: Ruslan Pisarev <ruslan@rpisarev.org.ua>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

Staging: xgifb: Fixed up a errors "do not initialise statics to 0 or NULL" in XGI_main.h

This is a patch to the XGI_main.h file that fixed up a errors "do not initialise statics to 0 or NULL" found by the checkpatch.pl tools.

Signed-off-by: Ruslan Pisarev <ruslan@rpisarev.org.ua>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

IIO: ADC: New driver for AD7190/AD7192/AD7195 4 Channel SPI ADC

New driver for AD7190/AD7192/AD7195 4.8 kHz, Ultralow Noise, 24-Bit
Sigma-Delta ADC with PGA

These devices features a dual use data out ready DOUT/RDY output.
In order to avoid contentions on the SPI bus, it's necessary to use
spi bus locking. The DOUT/RDY output must also be wired to an
interrupt capable GPIO.

In INDIO_RING_TRIGGERED mode, this driver may block its SPI bus segment
for an extended period of time.

Changes since V1:

Add missing documentation.
Remove obsoleted include files.
Fix typos and style issues.
Fix buffer size.
Split ad7192_show() into two functions.
Avoid race condition add mutex.
Abandon IIO_CHAN macro.
Reorder elements in ad7192_platform_data.
Remove driver bus type.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging:iio:imu:adis16344 support

Simple device. Note the sparse scan mask used.

Done from datasheet as very similar to existing parts.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

STAGING:iio:light: fix ISL29018 init to handle brownout

After a voltage brownout, sensor will now operate correctly.

Page 10 of ISL29018 data sheet and the Intersil Application Note 1534
describe the required initialization sequence:
1. Write 0x00 to register 0x08 (TEST)
2. Write 0x00 to register 0x00 (CMD1)
3. msleep(1)
4. program remaining registers as before

Signed-off-by: Grant Grundler <grundler@chromium.org>
Reviewed-by: Bryan Freed <bfreed@chromium.org>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

iio: impedance-analyzer: New driver for AD5933/4 Impedance Converter, Network Analyzer

The AD5933 is a high precision impedance converter system solution
that combines an on-board frequency generator with a 12-bit, 1 MSPS,
analog-to-digital converter (ADC). The frequency generator allows an
external complex impedance to be excited with a known frequency.

The response signal from the impedance is sampled by the on-board ADC
and a discrete Fourier transform (DFT) is processed by an on-chip DSP engine.
The DFT algorithm returns a real (R) and imaginary (I) data-word at each
output frequency.

Changes since V1:

Apply list review feedback:
Consistently use poll_time_jiffies.
Use be|le cpu endian helpers where applicable.
Add various comments.

Changes since V2:

Fix KernelVersion tag in Documentation.
Declare ad5933_default_pdata static.
Fix typos.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

iio: adc: New driver for AD7280A Lithium Ion Battery Monitoring System

The AD7280A monitoring system contains all the functions required for
general purpose monitoring and maintenance of stacked
lithium ion batteries as used in hybrid electric vehicles,
battery backup applications, etc.

Changes since V1:

Make cell channels all type IIO_IN_DIFF, update documentation accordingly.
Remove unused and redundant defines.
Use SI units where applicable.
Remove unnecessary wrapper function.
Remove redundant initialization.
Add comments where requested.
Revise event handler.
Use const where applicable.

Changes since V2:

Remove redundant adc.h include file, scheduled for removal.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

iio: core: deconstify members of struct iio_chan_spec

Allow dynamic allocation and population of channel spec.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging:iio: remove unneeded include

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging:iio:events: use IIO_<TYPE> and IIO_MOD_<> instead of IIO_EV_CLASS_<TYPE> etc

The original definitions were duplicated to reduce tree churn during introduction of chan_spec
registration.  Now there is no point in maintaining the two sets of definitions.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging:iio: Introduce iio_core.h and move all core only stuff out of iio.h.

Also get rid of a few function defs where they are only now in one core file
anyway.
Whilst here add mask = 0 to get rid of warning.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging:iio:adc remove unused adc.h.

Another header unused after chan_spec conversions.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging:iio:accel remove unused accel.h header.

The chan spec conversions and a small amount of pushdown of defines
mean this header is no longer used.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging:iio:gyro: remove gyro.h

Not longer needed now all devices with gyro channels are using
iio_chan_spec registration.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging:iio:magnetometer: remove unused header magnet.h

Now all magnetomers are using iio_chan_spec there is no need for
the macros in magnet.h

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging:iio:magnetometer:ak8975 convert to iio_chan_spec + cleanups.

iio_chan_spec conversion is straight forward.

Other changes:
* use i2c_smbus_write_byte_data in write_data
* c99 isms to setup various structures.
* move the comment about the scale factor and kill off trivial access func.
* make mode setting code use a bool rather than a ulong.

Ultimately I'd like to get rid of that mode bit entirely and handle it through
core pm routines, but have left it for now.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging:iio:accel:adis16220 iio_chan_spec conversion.

I still have numerous issues with this driver and it
needs a substantial rewrite.

Whilst doing this patch at least one bug has been fixed (temp
reading didn't have an address) and a number of missing channel
info elements added.

Untested!

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging:iio:accel:adis16204: use peak_raw info_mask element + push some defs down from header.

Currently this is the only driver using some of the defines in accel.h.
If these become common we'll just add them to the channel_spec options,
for now push down into this driver.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging:iio:gyro:adis16060 convert to iio_chan_spec

Still a very odd driver. This patch has the side effect of changing
it's name slightly.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging:iio:gyro:adis16130 move to iio_chan_spec registration.

Simple conversion now we've dropped the type attributes.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging:iio:magnetometer:hmc5843 iio_chan_spec conversion.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging:iio:gyro:adis16080 convert to iio_chan_spec.

This is a rare driver that is so simple it actually gets longer
as a result of this conversion.  Oh well, swings and roundabouts.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging:iio:gyro:adxrs450 squish some trivial single call point wrappers functions.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging:iio:gyro:adxrs450 make more use of spi_read and spi_write.

This needs confirmation that the devices is happy if another part is
talked to in between the request for a register and the read back.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging:iio:gyro:adxrs450 move to iio_chan_spec registration

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging:iio: add quadrature correction to chan info types.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging:iio:accel:kxsd9 cleanup and conversion to iio_chan_spec.

Lots of minor bits and pieces.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging:iio: Remove deprecated dev_data from iio_dev.

The equivalent should always be done using iio_alllocate_device
with to create a private area for the driver and then iio_priv
to access it.  There may be other uses for a private data pointer
but right now it just leads driver writers astray.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging:iio:light:tsl2583 allocate chip state with iio_dev

There are some unusual corners in the probe function of this
driver, so may need another look.

V2: Now with the check for allocation success not inverted.
V3: Now with the i2c devdata calls actually being correctly cast.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Tested-by: Jon Brenner <jbrenner@TAOSinc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging:iio:sysfs cleanout header for unused definitions.

Also push one down into the only driver that actually uses it.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging:iio:core squash trivial wrappers and use ida allocation func.

Reorder to remove need for definitions currently in header.
Remove ida related utility function defs from header.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging:iio:core flatten convenience function that only has one user.

Fix trivial wrong index (no effect on any current drivers).

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging:iio:gyro and meter: header housecleaning.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging:iio:accel header housekeeping - remove unecessary includes.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging:iio:adc: header cleanup - remove unused.

Clear out all the excessive includes in the *_ring.c files.
Mixture of cut and paste bloat and things needed for code that
has gone away.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging:iio:various header includes that should never have been.

I will assume these were cut and pastes messup.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging:iio:inclinometer.h remove as now unused.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging:iio:adc: unused header removals.

More headers now not needed after iio_chan_spec conversions.
A couple of drivers were using helpers from adc.h.

Given these were trivial, they are pushed down into the drivers.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging:iio:accel: usused header removals.

Missing from the iio_chan_spec conversion patches.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging:iio:gyro:adis16130 drop control of adc resolution.

There is no clear use case for this functionality in a driver
that only supports slow reading via sysfs. The interface
use was non compliant with the abi motiving it being dropped.

It can go back in if anyone ever implements buffered reading
support for this device.  Then it will be controlled as
part of the buffering abi where this should indeed be correctly
supported.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging:iio:imu:adis16400 remove unused headers.

These should have gone with the iio_chan_spec conversion.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging:iio:gyro:adis16260 remove some unused headers

These should have gone with the iio_chan_spec conversion patch.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging:iio:triggers introduce iio_trigger_ops to take const bits out of iio_trig_structure.

Right now this results in increased code, but I still think it is worth doing to avoid
replication across instances of drivers etc and move as much stuff as possible to constant.
Ops structure is optional for the occasional driver that uses none of it (currently
only the ad7793).

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging:iio:imu:adis16400 remove now unused headers.

These should really have gone away with the code that needed them.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging:iio:imu:adis16400: use strtobool for reset sysfs and don't assign unused tx members.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging:iio:trivial sparse related cleanups.

Getting rid of messages that make it harder to spot important issues.
Some code removed that will be useful one day.  Can put it back then.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging:iio:documentation trivial typo fix

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging:iio:various Stop drivers putting sysfs attributes in a directory named after the device.

No idea how this particularly 'quirk' got in there in the first
place.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging:iio: in case of buggy drivers avoid using undefined mask.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging:iio: dummy sysfs group for autogenerated base directories.

Needed to ensure the reference counting is correct.
Temporary fix whilst discussions are ongoing.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging:iio:accel:adis16201 overflow tx buffer.

Smatch caught bug.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging:iio:dac:ad5504 dereferencing just freed st in error path.

Introduced when I did the iio_chan_spec conversion. Detected by smatch.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging:iio:addac:adt7316 make interrupt mask sane.

Coccinelle found this one. I'm not certain what
the intent is, but this fix makes no functional changes.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging:iio: sysfs.h remove unused val2 and dead macro.

Vivien pointed out that 99e5dc45b854b4b661044e807905152911ed3fdb
removed the IIO_DEVICE_ATTR_2 macro but didn't clean up the other
macros that used it.

As it turns out, no one is using val2 in tree, so lets scrap that
until it is needed.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Reported-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging:iio:core simplify and fix a bug in iio_device_(un)register_event_set.

The unwinding index was j, not i and it is much simpler to do these as a single
loop unwinding those elements necessary in before jumping to the error handler.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging:iio:adc: max1363 fix 2 raw sysfs issues.

indio_dev->channels was accidentally removed thus preventing any sysfs
registrations occuring for direct reading.  That hid the other issue.

Unfortunately the incorrect handling leads to misspresentation of data
in sysfs reads.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging:iio:gyro:adis16130 fix adis16130_spi_read which was never selecting the channel

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging: vt6655: Fixed all the indents and other errors in IEEE11h.c

Signed-off-by: Toon Schoenmakers <nighteyes1993@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging: rtl8192u: Follow all suggestions from checkpatch on compress.c

Signed-off-by: Toon Schoenmakers <nighteyes1993@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

Staging: nvec: fixes coding style issues in nvec_kbd.c

This patches nvec_kbd.c to the file that fixes up errors found by
the checkpath.pl tool.

Signed-off-by: Colin Brophy <colin@brophys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging: brcm80211: use kstrdup()

 Use kstrdup rather than duplicating its implementation

 The semantic patch that makes this output is available
 in scripts/coccinelle/api/kstrdup.cocci.

 More information about semantic patching is available at
 http://coccinelle.lip6.fr/

Signed-off-by: Thomas Meyer <thomas@m3y3r.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging: brcm80211: use kzalloc()

Use kzalloc rather than kmalloc followed by memset with 0

This considers some simple cases that are common and easy to validate
Note in particular that there are no ...s in the rule, so all of the
matched code has to be contiguous

The semantic patch that makes this output is available
in scripts/coccinelle/api/alloc/kzalloc-simple.cocci.

More information about semantic patching is available at
http://coccinelle.lip6.fr/

Signed-off-by: Thomas Meyer <thomas@m3y3r.de>
Acked-by: Roland Vossen <rvossen@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging: brcm80211: fill in proper rx rate in mac80211 rx status

The brcmsmac driver supports different rates on 5GHz but this is not
taken into account when providing the rate index in the receive
status information passed to mac80211.

Reviewed-by: Roland Vossen <rvossen@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Henry Ptasinski <henryp@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging: brcm80211: bugfix for fifo problem on 64 bits platforms.

Message 'receive fifo overflow' appeared in the log. Root cause was an
invalid physical address being programmed into the DMA engine. This was
caused by an invalid pointer cast in the dma code. Issue was observed on
a Sparc (Sun Fire V120) machine but could theoretically also pop up
on other architectures.

Driver was tested to scan and ping on aforementioned machine.

Reviewed-by: Arend van Spriel <arend@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging: brcm80211: bugfix for exception on Sparc platforms

Problem would pop up during driver load on a Sun Fire V120 and manifested
itself as an exception. This was caused by int* pointers provided to memcpy()
that were not aligned on an int boundary. The pointer type provided to
memcpy() is used by the compiler for optimization purposes. Fix was to cast
the int* pointers to void* pointers.

Bernhard R. Link and David S. Miller provided valuable feedback, thanks gents.

Reviewed-by: Arend van Spriel <arend@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging: brcm80211: fix rtnl_lock issue when bringing down brcmfmac

When bringing down the netdevice interface a deadlock occurred
sporadically due to the rtnl_lock being held by a task that was
waiting for another task trying to get the lock. This patch fixes
that issue.

Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Reviewed-by: Roland Vossen <rvossen@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging: brcm80211: fix checkpatch warning in fullmac

Fix the __aligned checkpatch warning in wl_cfg80211.h

Reviewed-by: Roland Vossen <rvossen@broadcom.com>
Reviewed-by: Henry Ptasinski <henryp@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

staging: brcm80211: make use of cordic library function

The cordic function which calculates cosine and sine values for given
angle is now provided in library module. The phy code now uses this
module function.

Reviewed-by: Henry Ptasinski <henryp@broadcom.com>
Reviewed-by: Roland Vossen <rvossen@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>