iio: fix drivers that consider 0 as a valid IRQ in client->irq

Since patch "i2c / ACPI: Use 0 to indicate that device does not have
interrupt assigned" [1], 0 is not a valid i2c client irq anymore, so
change all driver's checks accordingly.

The same issue occurs when the device is instantiated via device tree
with no IRQ, or from the i2c sysfs interface, even before the patch
above.

[1] http://lkml.kernel.org/g/<1430908148-201129-3-git-send-email-mika.westerberg@linux.intel.com>

Signed-off-by: Octavian Purdila <octavian.purdila@intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

tools: iio: Send error messages to stderr

This patch indends to make some cleanup and send printf
error messages to stderr. The changes were performed with coccinelle
for failure messages and manual for other cases, such as wrong usage
messages.

Signed-off-by: Cristina Opriceana <cristina.opriceana@gmail.com>
Reviewed-by: Hartmut Knaack <knaack.h@gmx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

tools: iio: Add ARRAY_SIZE macro

Calculation of the length of an array can be done with the ARRAY_SIZE
macro to make code more abstract and remove the associated
checkpatch.pl warning.

Signed-off-by: Cristina Opriceana <cristina.opriceana@gmail.com>
Acked-by: Hartmut Knaack <knaack.h@gmx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

tools: iio: Remove unnecessary braces

Single statement blocks don’t need braces.
Found with checkpatch.pl.

Signed-off-by: Cristina Opriceana <cristina.opriceana@gmail.com>
Acked-by: Hartmut Knaack <knaack.h@gmx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

tools: iio: Remove explicit NULL comparison

Remove explicit NULL comparison and write it in its simpler form as
recommended by checkpatch.pl.

Signed-off-by: Cristina Opriceana <cristina.opriceana@gmail.com>
Reviewed-by: Hartmut Knaack <knaack.h@gmx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

iio: light: Add support for TXC PA12 als and proximity sensor

Add support for TXC PA12203001 als and proximity sensor.
Support for raw illuminance and proximity readings.

Signed-off-by: Adriana Reus <adriana.reus@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

iio: light: add support for TI's opt3001 light sensor

TI's opt3001 light sensor is a simple and yet powerful
little device. The device provides 99% IR rejection,
automatic full-scale, very low power consumption and
measurements from 0.01 to 83k lux.

This patch adds support for that device using the IIO
framework.

See http://www.ti.com/product/opt3001 for more information.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Andreas Dannenberg <dannenberg@ti.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

iio: dht11: Use new function ktime_get_resolution_ns()

This cleans up the most ugly workaround in this driver. There are no
functional changes yet in the decoding algorithm, but we improve the
following things:
 * Get rid of spurious warning messages on systems with fast HRTIMER.
 * If the clock is not fast enough for decoding to work, we give
   up immediately.
 * In that case we return EAGAIN instead of EIO, so it's easier to
   discriminate causes of failure.

Returning EAGAIN is somewhat controversial: It's technically correct
as a faster clock might become available. OTOH once all clocks are
enabled this is a permanent error. There is no ECLOCKTOOSLOW error
code.

Signed-off-by: Harald Geyer <harald@ccbib.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

iio: dht11: avoid multiple assignments to make checkpatch.pl --strict happy

We just do the assignments in two steps.

Signed-off-by: Harald Geyer <harald@ccbib.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

iio: dht11: add comment to make checkpatch.pl --strict happy

Explain why the driver needs a mutex.

Signed-off-by: Harald Geyer <harald@ccbib.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

iio: dht11: whitespace changes to make checkpatch.pl --strict happy

* add spaces around binary operators in cases where it reduces readability
* align multiline statements around opening parenthesis

Reported-by: Hartmut Knaack <knaack.h@gmx.de>
in Message-ID: <55919E72.3010807@gmx.de>

Signed-off-by: Harald Geyer <harald@ccbib.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

iio: adc: vf610: Determine sampling frequencies by using minimum sample time

The driver currently does not take into account the minimum sample time
as per the Figure 6-8 Chapter 9.1.1 12-bit ADC electrical characteristics.
We set a static amount of cycles instead of considering the sample time
as a given value, which depends on hardware characteristics.

Determine sampling frequencies by first reading the device tree property
node and then calculating the required Long Sample Time Adder (LSTAdder)
value, based on the ADC clock frequency and sample time value obtained
from the device tree. This LSTAdder value is then used for calculating
the sampling frequencies possible.

In case the sample time property is not specified through the device
tree, a safe default value of 1000ns is assumed.

Signed-off-by: Sanchayan Maity <maitysanchayan@gmail.com>
Acked-by: Stefan Agner <stefan@agner.ch>
Acked-by: Fugang Duan <B38611@freescale.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

iio: adc: mcp320x: Add support for mcp3301

This adds support for Microchip's 13 bit 1 channel AD converter MCP3301

Signed-off-by: Andrea Galbusera <gizero@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

iio:magnetometer:bmc150_magn: replace magic value

Construct the scanmask using its descriptive axis names (as used in
iio_chan_spec) instead of a 'magic' value.

Signed-off-by: Hartmut Knaack <knaack.h@gmx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

iio: magnetometer: mmc35240: Add DT binding doc

Signed-off-by: Jandy Gou <qingsong.gou@ck-telecom.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

iio: magnetometer: mmc35240: Add DT binding

Signed-off-by: Jandy Gou <qingsong.gou@ck-telecom.com>
Acked-by: Daniel Baluta <daniel.baluta@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

iio:light:acpi-als: add missing prefixes

Some macros and a function were missing the acpi_als_ prefix, so add it.

Signed-off-by: Hartmut Knaack <knaack.h@gmx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

iio: mxs-lradc: add datasheet name for every usable channel

In order to provide a channel name to in kernel consumers add the
datasheet names for every usable AD channel. Since the channel names
differ between i.MX23 and i.MX28, we need to separate the channel
specs.

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

iio: mxs-lradc: reorder header includes

This patch reorder the header includes alphabetically.

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

iio: mxs-lradc: remove unnecessary header includes

This patch removes the unnecessary header includes.

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

iio: mxs-lradc: add missing include

This patch adds the missing include for mutex handling.

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

iio: mxs-lradc: fix some spelling errors

This patch fix some spelling errors in the comments.

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

iio: mxs-lradc: clarify supported devices

At the beginning the driver supported only i.MX28 SoC, but now the
whole MXS platform. So remove any confusing comments which apply
only to i.MX28.

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

iio: Documentation: Remove bytes_per_datum attribute

Remove sysfs bytes_per_datum device attribute ABI documentation
since the attribute is not present anymore.

Signed-off-by: Cristina Opriceana <cristina.opriceana@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

staging: dgap: remove duplicate code

Remove the duplicate code of dgap_remove_one() and dgap_stop().

Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: dgap: new arguments to dgap_stop

In a later patch we will remove the duplicate codes. But the code also
needs to execute dgap_remove_driver_sysfiles() if it is being called
from dgap_remove_one() but if being called fron the error path of the
dgap_init_module() then the sysfiles should not be removed.

Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: dgap: rearrange function

Relocate the function dgap_stop() so that in a later patch we can remove
the duplicate codes between dgap_stop() and dgap_remove_one().

Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: dgap: fix error path

The code in dgap_stop() is almost a duplicate of the code that will be
executed on pci_unregister_driver(). So the error code was stopping and
unregistering everything twice.

Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8188eu: remove unneeded ret

The variable ret was always 0. So remove the variable and always
return 0 from the function.

Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8188eu: stop using DBG_88E

Stop using DBG_88E which is a custom macro for printing debugging
messages. Instead start using pr_debug and in the process define
pr_fmt.

Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8188eu: remove unneeded variable

The default value of status was _FAIL, it was only changed if kzalloc
succeeds and the check for status is immediately following kzalloc. We
can have the failure code in the else part as the failure code will be
executed only if kzalloc fails.

Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8188eu: remove goto label

By checking for the success of kzalloc we were able to remove the goto
label thus making the code more readable.

Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8188eu: remove redundant NULL check

The check for pstat and pdvobjpriv is not required here as we have
already checked for them before.

Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8188eu: remove unused function

The inline function rtw_set_ips_deny() was only defined but was never
used.

Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: sm7xxfb: usr fb_read and fb_write

Now since the Big-Endian and Little-Endian based calculations are moved
into a macro we can make fb_read() and fb_write() common for both
Little-Endian and Big-Endian.

Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: sm7xxfb: define new macros

Define and use some new macros to work with different situations
based on little-endian and big-endian.

Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8188eu: remove unused rtw_hal_write_rfreg

rtw_hal_write_rfreg() is never referenced, so remove it.

It used to be the only place where the write_rfreg callback was
called, so get rid of the function pointer as well.

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Cc: Greg Kroah-Hartman <gregkh@linux.com>
Cc: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8188eu: remove unused rtw_hal_set_def_var

rtw_hal_set_def_var() is never referenced, so remove it.

It used to be the only place where the SetHalDefVarHandler callback was
called, so get rid of the function pointer as well.

Also remove the callback itself, SetHalDefVar8188EUsb(), which was not
called anywhere else.

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Cc: Greg Kroah-Hartman <gregkh@linux.com>
Cc: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8188eu: remove unused {en,dis}able_interrupt

rtw_hal_enable_interrupt() and rtw_hal_disable_interrupt() are never
referenced, so remove them.

They used to be the only place where the enable_interrupt() and
disable_interrupt() callbacks were called, and the function pointer
is never set, so get rid of the function pointer as well.

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Cc: Greg Kroah-Hartman <gregkh@linux.com>
Cc: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ft1000: ft1000-usb: remove unnecessary out of memory warning

fixes "Possible unnecessary 'out of memory' message"

Signed-off-by: CHANG FU CHIAO <zector1030@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Staging: lustre: make obd_device_cachep static

Variable obd_device_cachep is only used inside the file it is declared,
so it is better set as static

Signed-off-by: Pedro Marzo Perez <marzo.pedro@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging/lustre/ldlm: Unregister ldlm namespace from sysfs on free

ldlm_namespace_sysfs_unregister needs to be called ldlm_namespace_free_post
so that we don't have this dangling object there after the namespace
has disappeared.

Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: lustre: obdclass: simplify class_uuid_unparse

This patch simplifies uuid unparse logic by using sprintf "%pU" extension.
And eliminates the code with a coding style error:

ERROR: Macros with complex values should be enclosed in parentheses
+#define CONSUME(val, ptr) (val) = consume(sizeof(val), (ptr))

Signed-off-by: Vasiliy Korchagin <vasiliy.korchagin@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: unisys: fix copyright statements

The copyright statements in the drivers need to be correct and
consistent; this patch fixes the year for all of them, and makes the
statement text cover just the GPL V2.

Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Merge tag 'iio-for-4.3a' of git://git./linux/kernel/git/jic23/iio into staging-next

Jonathan writes:

First round of new drivers, cleanups and functionality for IIO in the 4.3 cycle.

Core and tools new stuff
* Allow explicit flush of hardware fifo by using an non blocking read.
  This is needed to support some of the Android requirements for HW fifo
  devices - also makes sense generally and clarifies a corner of the ABI.
* Add some missing modifier names.  Mostly these exist for weird and
  wonderful event types, but should still be present in the name array.
* Update iio_event_monitor to cope with new channel types.
* generic_buffer gains support for single byte scan elements (no idea
  how this never got implemented before!)

New device support
* ROHM rpr0521 light and proximity sensor driver.
* bmc150 gains bmc156 support.
* ms5611 gains ms5607 temperature and pressure sensor support.

Driver functionality
* inv-mpu - add scale_available attributes to aid userspace in
  configuring these devices.
* isl29125 - add scale_available attributes.
* stk8ba50 - sampling frequency control, triggered buffer support.
* stk8312 - sampling frequency control, triggered buffer support.
* cc10001 - ensure ADC powered up at probe time if shared by non linux
  running CPUs.
* bmc150-magn - decouple the buffer and trigger allowing other triggers
  to be used to drive this device's sampling.
Documentation
* Add some previously missed *scale_available attributes to the ABI docs.

Cleanups
* Clarify some crazy naming in iio_triggered_buffer_setup that seems to
  have somehow ended up backwards (dates back a long way).  Avoid the top
  half and bottom half naming entirely given we are how dealing with a
  handler and a thread in all cases.
* Tools cleanup including coding style, variable naming improvements, also
  a new sanity check on a full event having been read.
* stk8ba50 - replace the scale table with a struct for clarity. Also suspend
  the sensor if an error occurs in init.
* hid-sensor-prox - drop uneeded line break.
* mma9551 - use size in words for word read / write avoiding accidental
  sending of an odd number of bytes.
* mma9553 - fix code alignment and document the use of a mutex.
* light/Kconfig - typo fix in commment.
* cm3323 - don't eat an error value, replace an unneeded local variable with
  a generic local variable with the same use, add some blank lines for clarity.
* pressure/Kconfig - typo in Measurement Specialties name.
* bmc150-accel - actually use a mask definition rather than repeating the
  value inline, code style cleanup.
* adc/Kconfig - general help description cleanup.
* ssp_sensors - drop redundant spi driver bus initialization (done in the
  spi core)
* tmp006 - use genmask rather than hand generated masks.
* ms5611 - drop IIO_CHAN_INFO_SCALE as this driver provides a processed
  output and as such the read only scale adds nothing useful.
* kxcjk-1013, adf4350, dummy - drop unwanted blank lines.
* Drop all owner assignments from i2c_drivers and this is done in the
  i2c core.

staging: sm750fb: add missing blank line after declarations

Fixes checkpatch.pl
WARNING: Missing a blank line after declarations

Signed-off-by: Juston Li <juston.h.li@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: sm750fb: remove unnecessary braces

Fixes checkpatch.pl warning:
WARNING: braces {} are not necessary for single statement blocks

Signed-off-by: Juston Li <juston.h.li@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: sm750fb: move while to follow do close brace

Fixes checkpatch.pl error:
ERROR: while should follow close brace '}'

Signed-off-by: Juston Li <juston.h.li@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: sm750fb: fix brace placement

Fix brace placement errors caught by checkpatch.pl
ERROR: that open brace { should be on the previous line

Signed-off-by: Juston Li <juston.h.li@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: sm750fb: remove unnecessary whitespace

Fixes checkpatch.pl warning:
WARNING: unnecessary whitespace before a quoted newline

Signed-off-by: Juston Li <juston.h.li@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: sm750fb: remove trailing whitespace

Fixes checkpatch.pl error:
ERROR: trailing whitespace

Signed-off-by: Juston Li <juston.h.li@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: sm750fb: add space after semicolon

Fixes checkpatch.pl error:
ERROR: space required after that ';'

Signed-off-by: Juston Li <juston.h.li@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: sm750fb: add spaces around operators

Fixes checkpath.pl error:
ERROR: spaces required around that operator

Note running checkpatch.pl with '--strict' catches more
of these errors along with cases where spacing is optional
but preferred. Take care of these in a future patch.

Signed-off-by: Juston Li <juston.h.li@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: sm750fb: consistent spacing around operators

Fixes checkpatch.pl error:
ERROR: need consistent spacing around operator

Signed-off-by: Juston Li <juston.h.li@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: sm750fb: add space after return type

Fixes checkpatch.pl warning:
WARNING: missing space after return type

Signed-off-by: Juston Li <juston.h.li@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: sm750fb: add space after struct definition

Fixes checkpatch.pl warning:
WARNING: missing space after struct definition

Signed-off-by: Juston Li <juston.h.li@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: sm750fb: add space after enum definition

Fixes checkpatch.pl warning:
WARNING: missing space after enum definition

Signed-off-by: Juston Li <juston.h.li@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: sm750fb: add space after close brace

Fixes checkpatch.pl error:
ERROR: space required after that close brace '}'

Signed-off-by: Juston Li <juston.h.li@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: sm750fb: add space before open brace

Fixes checkpatch.pl error:
ERROR: space required before the open brace '{'

Signed-off-by: Juston Li <juston.h.li@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: sm750fb: remove space between function name and parenthesis

Fixes checkpatch.pl warning:
WARNING: space prohibited between function name and open parenthesis '('

Signed-off-by: Juston Li <juston.h.li@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: sm750fb: add space before open parenthesis

Fixes checkpatch.pl error:
ERROR: space required before the open parenthesis '('

Signed-off-by: Juston Li <juston.h.li@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: sm750fb: remove space before close parenthesis

Fixes checkpatch.pl error:
ERROR: space prohibited before that close parenthesis ')'

Signed-off-by: Juston Li <juston.h.li@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: sm750fb: remove spacing after open parenthesis

Fixes checkpatch.pl warning:
ERROR: space prohibited after that open parenthesis '('

Signed-off-by: Juston Li <juston.h.li@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: sm750fb: use tabs for indentation

Replace spaces with tabs for indentation to fix the checkpatch.pl error
ERROR: code indent should use tabs where possible
WARNING: please, no spaces at the start of a line

Signed-off-by: Juston Li <juston.h.li@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: vme_user: remove okcount variable

Signed-off-by: Dmitry Kalinkin <dmitry.kalinkin@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: vme_user: remove distracting comment

Signed-off-by: Dmitry Kalinkin <dmitry.kalinkin@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: vme_user: remove unused variable

Signed-off-by: Dmitry Kalinkin <dmitry.kalinkin@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: vme_user: switch to returning -EFAULT on __copy_*_user errors

Signed-off-by: Dmitry Kalinkin <dmitry.kalinkin@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: vme_user: allow large read()/write()

This changes large master transfers to do shorter read/write rather than
return -EINVAL. User space will now be able to optimistically request a
large transfer and get at least some data.

This also removes comments suggesting on how to implement large
transfers. Current vme_master_* read and write implementations use CPU
copies that don't produce burst PCI accesses and subsequently no block
transfer on VME bus. In the end overall performance is quiet low and it
can't be fixed by doing direct copy to user space. Much easier solution
would be to just reuse kernel buffer.

Signed-off-by: Dmitry Kalinkin <dmitry.kalinkin@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: vme_user: fix kmalloc style

Signed-off-by: Dmitry Kalinkin <dmitry.kalinkin@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: vme_user: fix NULL comparison style

Signed-off-by: Dmitry Kalinkin <dmitry.kalinkin@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: vme_user: fix blank lines

Signed-off-by: Dmitry Kalinkin <dmitry.kalinkin@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: vme_user: fix code alignment

Signed-off-by: Dmitry Kalinkin <dmitry.kalinkin@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging:vt6655: remove checks around dev_kfree_skb

dev_kfree_skb checks for NULL pointer itself,
Thus no need of explicit NULL check.

Signed-off-by: Maninder Singh <maninder1.s@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ion: debugfs to shrink pool

This patch enables debugfs file /sys/kernel/debug/ion/heaps/system_shrink
to shrink pool and get pool size. This technically enables debugfs
shrinking for all heaps, not just the system heap although the system heap
is the only one with a shrinker right now. It is already implemented
but not complete. This patch completes and enables it.

Reading the file returns pool size
in page unit and writing the number of pages shrinks pool.
It flushes all pages to write zero at the file.

Signed-off-by: Gioh Kim <gioh.kim@lge.com>
Reviewed-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ion: shrink page-pool by page unit

This patch shrink page-pool by page unit.

The system shrinker calls ion_heap_shrink_count() to get nr_to_scan,
and pass it to ion_heap_shrink_scan().
The problem is the return value of ion_heap_shrink_count() is the number
of pages but ion_system_heap_shrink(), which is called by
ion_heap_shrink_scan(), gets the number of chunk.

The main root of this is that ion_page_pool_shrink() returns page count
via ion_page_pool_total() if it have to check pool size. But it frees
chunks of pages if it have to free pools.

This patch first fix ion_page_pool_shrink() to count only pages,
not chunks. And then ion_system_heap_shrink() to work on pages.

Signed-off-by: Gioh Kim <gioh.kim@lge.com>
Reviewed-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Staging: rtl8192e: Replace memset with eth_zero_addr

Use eth_zero_addr to assign the zero address to the given address
array instead of memset when second argument is address of zero.
Note that the 6 in the third argument of memset appears to represent
an ethernet address size (ETH_ALEN).

The Coccinelle semantic patch that makes this change is as follows:

// <smpl>
@eth_zero_addr@
expression e;
@@

-memset(e,0x00,6);
+eth_zero_addr(e);
// </smpl>

Signed-off-by: Vaishali Thakkar <vthakkar1994@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8192e: rtllib_softmac: Make functions static

Make as many functions as possible static in rtllib_softmac.c.

The following functions were affected:
- rtllib_sta_wakeup
- rtllib_TURBO_Info
- rtllib_get_beacon_
- rtllib_send_probe_requests
- rtllib_update_active_chan_map
- rtllib_softmac_scan_syncro

Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8192e: Make rtllib_rx_mgt() static

Function is not referenced outside of rtllib_rx.c

Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8192e: rtllib_tx: Make functions static

Make as many functions as possible static in rtllib_tx.c.

The following functions were affected:
- rtllib_xmit_inter
- rtllib_query_seqnum
- rtllib_put_snap

Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8192e: Make rtl8192_QueryIsShort() static

Relocate function within file to avoid unnecessary fw decl.

Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8192e: r8192e_phy: Make functions static

Make as many functions as possible static in r8192E_phy.c.

The following functions were affected:
- rtl8192_phyConfigBB
- rtl8192_SwChnl_WorkItem
- rtl8192_SetBWModeWorkItem

Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8192e: rtl_core: Make functions static

Make as many functions as possible static in rtl_core.c.
If needed - move fw declaration from header.

The following functions were affected:
- rtl8192_is_tx_queue_empty
- rtl819x_watchdog_wqcallback
- watch_dog_timer_callback
- rtl8192_data_hard_stop
- rtl8192_data_hard_resume
- rtl8192_hard_data_xmit
- rtl8192_hard_start_xmit
- rtl8192_tx_cmd
- rtl8192_tx
- rtl8192_pci_initdescring
- rtl8192_irq_tx_tasklet
- rtl8192_irq_rx_tasklet
- rtl8192_cancel_deferred_work
- _rtl8192_up
- rtl8192_up
- rtl8192_down
- rtl8192_restart
- rtl8192_update_cap

Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8192e: Make phy_RF8256_Config_ParaFile() static

Relocate function in driver to avoid adding unnecessary fw decl.

Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8192e: rtllib_HTProc: Make functions static

Make as many functions as possible static in rtllib_HTProc.c.

The following functions were affected:
- HTMcsToDataRate
- HTFilterMCSRate

Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8192e: rtl_dm: Make functions static

Make as many functions as possible static in rtllib_dm.c.

The following functions were affected:
- dm_check_fsync
- dm_CheckRfCtrlGPIO
- dm_fsync_timer_callback

Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8192e: Remove rtl8192_rx_cmd()

Function is empty.

Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8192e: probe: Remove bdma64 check

It is always false.

Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8192e: Remove rtl819x_process_cck_rxpathsel()

Function is empty.

Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8192e: Remove DMESG macro

It is used in several places, but expands to nothing.

Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8192e: Remove read|write_nic_io_(d)word|byte()

None of this functions was used.
Also remove PlatformIOCheckPageLegalAndGetRegMask() used by them.

Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8192e: Remove DOT11D_GetMaxTxPwrInDbm()

Function is not used.

Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8192e: Remove unused rtllib_device::freq_band

Member is never referenced.

Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8192e: Remove unused ether_header structure

Structure is not used in the driver.

Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8192e: Remove rtllib_stats structure

Two remaining fields of rtllib_stats are only incremented, but
never read.

Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8192e: Remove unused fields from rtllib_stats

None of them are used in the driver.

Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8192e: Remove unused enums

Remove ack_policy enum and some unused RTL_DEBUG enums.

Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8192e: Remove undefs

They relate to macros that are not used in the driver.

Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8192e: Remove unused defines

Remove most of unused defines (excluding phyreg/hw registers).

Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8192e: Remove ToLegalChannel()

Function is not used.

Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>