iio: max31856: add missing of_node and parent references to iio_dev

Adding missing indio_dev->dev.of_node references so that, in case multiple
max31856 are present, users can get some clues to being able to distinguish
each of them. While at it, add also the missing parent reference.

Signed-off-by: Andrea Merello <andrea.merello@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

iio: imu: st_lsm6dsx: enable clear on read for latched interrupts

Enable clear on read feature for latched interrupts. This bit allows
immediately clearing the latched interrupts of an event detection upon
the read of the corresponding status register.
It must be set to 1 together with LIR.
This feature is available just on LSM6DS0/LSM6DSR/ASM330LHH

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Tested-by: Sean Nyekjaer <sean@geanix.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

iio: imu: st_lsm6dsx: enable LIR for sensor events

Enable Latched interrupt by default for sensor events

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Tested-by: Sean Nyekjaer <sean@geanix.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

iio: ad7949: kill pointless "readback"-handling code

The device could be configured to spit out also the configuration word
while reading the AD result value (in the same SPI xfer) - this is called
"readback" in the device datasheet.

The driver checks if readback is enabled and it eventually adjusts the SPI
xfer length and it applies proper shifts to still get the data, discarding
the configuration word.

The readback option is actually never enabled (the driver disables it), so
the said checks do not serve for any purpose.

Since enabling the readback option seems not to provide any advantage (the
driver entirely sets the configuration word without relying on any default
value), just kill the said, unused, code.

Signed-off-by: Andrea Merello <andrea.merello@gmail.com>
Reviewed-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

staging: iio: ADIS16240: Remove unused include

'#include<linux/gpio.h>' isn't being used anywhere. Remove it.

Signed-off-by: Rohit Sarkar <rohitsarkar5398@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

iio: light: bh1750: Resolve compiler warning and make code more readable

Separate the declaration of struct bh1750_chip_info from definition
of bh1750_chip_info_tbl[] in a single statement as it makes the code
hard to read, and with the extra newline it makes it look as if the
bh1750_chip_info_tbl[] had no explicit type.

This change also resolves the following compiler warning about the
unusual position of the static keyword that can be seen when building
with warnings enabled (W=1):

drivers/iio/light/bh1750.c:64:1: warning:
  ‘static’ is not at beginning of declaration [-Wold-style-declaration]

Related to commit 3a11fbb037a1 ("iio: light: add support for ROHM
BH1710/BH1715/BH1721/BH1750/BH1751 ambient light sensors").

Signed-off-by: Krzysztof Wilczynski <kw@linux.com>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

IIO: Ingenic JZ47xx: Add support for JZ4770 SoC ADC.

Add support for the ADC hardware present on Ingenic JZ4770 SoC.

Signed-off-by: Artur Rojek <contact@artur-rojek.eu>
Tested-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

dt-bindings: iio/adc: Add AUX2 channel idx for JZ4770 SoC ADC

Introduce support for AUX2 channel found in ADC hardware present on
Ingenic JZ4770 SoC.

Signed-off-by: Artur Rojek <contact@artur-rojek.eu>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

dt-bindings: iio/adc: Add a compatible string for JZ4770 SoC ADC

Add a compatible string for the ADC controller present on
Ingenic JZ4770 SoC.

Signed-off-by: Artur Rojek <contact@artur-rojek.eu>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

iio: light: cm36651: redundant assignment to variable ret

Variable ret is being assigned a value that is never read and
is being re-assigned a little later on. The assignment is redundant
and hence can be removed.

Addresses-Coverity: ("Ununsed value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

staging: iio: adc: ad7192: Add system calibration support

This patch will add a system calibration attribute for each channel. Using
this option the user will have the ability to calibrate each channel for
zero scale and full scale. It uses the iio_chan_spec_ext_info and IIO_ENUM
to implement the functionality.

Signed-off-by: Mircea Caprioru <mircea.caprioru@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

iio: adc: ad_sigma_delta: Export ad_sd_calibrate

This patch exports the ad_sd_calibrate function in order to be able to
call it from outside ad_sigma_delta.

There are cases where the option to calibrate one channel at a time is
necessary (ex. system calibration for zero scale and full scale).

Signed-off-by: Mircea Caprioru <mircea.caprioru@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

iio: adc: ad7192: Add sysfs ABI documentation

Add initial ABI documentation for ad7192 adc sysfs interfaces.

Signed-off-by: Mircea Caprioru <mircea.caprioru@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

iio: hid-sensor-attributes: Fix divisions for 32-bit platforms

The commit 473d12f7638c

  ("iio: hid-sensor-attributes: Convert to use int_pow()")

converted to use generic int_pow() helper. Though, the generic one returns
64-bit value and, in cases when it is used as divisor, it compels 64-bit
division from compiler.

In order to fix this, introduce a temporary 32-bit variable to hold the result
of int_pow() and use it as divisor afterwards.

In couple of cases, replace int_pow() with a predefined unit factors for time
and frequency.

Fixes: 473d12f7638c ("iio: hid-sensor-attributes: Convert to use int_pow()")
Reported-by: kbuild test robot <lkp@intel.com>
Reported-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Link: https://lore.kernel.org/r/20190905112759.13035-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

erofs: use read_cache_page_gfp for erofs_get_meta_page

As Christoph said [1], "I'd much prefer to just use
read_cache_page_gfp, and live with the fact that this
allocates bufferheads behind you for now.  I'll try to
speed up my attempts to get rid of the buffer heads on
the block device mapping instead. "

This simplifies the code a lot and a minor thing is
"no REQ_META (e.g. for blktrace) on metadata at all..."

[1] https://lore.kernel.org/r/20190903153704.GA2201@infradead.org/
Reported-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
Link: https://lore.kernel.org/r/20190904020912.63925-26-gaoxiang25@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

erofs: always use iget5_locked

As Christoph said [1] [2], "Just use the slightly
more complicated 32-bit version everywhere so that
you have a single actually tested code path.
And then remove this helper. "

[1] https://lore.kernel.org/r/20190829102426.GE20598@infradead.org/
[2] https://lore.kernel.org/r/20190902125320.GA16726@infradead.org/
Reported-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
Link: https://lore.kernel.org/r/20190904020912.63925-25-gaoxiang25@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

erofs: use read_mapping_page instead of sb_bread

As Christoph said [1], "This seems to be your only direct
use of buffer heads, which while not deprecated are a bit
of an ugly step child.  So if you can easily avoid creating
a buffer_head dependency in a new filesystem I think you
should avoid it. "

[1] https://lore.kernel.org/r/20190902125109.GA9826@infradead.org/
Reported-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
Link: https://lore.kernel.org/r/20190904020912.63925-24-gaoxiang25@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

erofs: rename errln/infoln/debugln to erofs_{err, info, dbg}

Add prefix "erofs_" to these functions and print
sb->s_id as a prefix to erofs_{err, info} so that
the user knows which file system is affected.

Reported-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
Link: https://lore.kernel.org/r/20190904020912.63925-23-gaoxiang25@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

erofs: save one level of indentation

As Christoph said [1], ".. and save one
level of indentation."

[1] https://lore.kernel.org/r/20190829102426.GE20598@infradead.org/
Reported-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
Link: https://lore.kernel.org/r/20190904020912.63925-22-gaoxiang25@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

erofs: kill use_vmap module parameter

As Christoph said [1],
"vm_map_ram is supposed to generally behave better.  So if
it doesn't please report that that to the arch maintainer
and linux-mm so that they can look into the issue.  Having
user make choices of deep down kernel internals is just
a horrible interface.

Please talk to maintainers of other bits of the kernel
if you see issues and / or need enhancements. "

Let's redo the previous conclusion and kill the vmap
approach.

[1] https://lore.kernel.org/r/20190830165533.GA10909@infradead.org/
Reported-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
Link: https://lore.kernel.org/r/20190904020912.63925-21-gaoxiang25@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

erofs: kill all erofs specific fault injection

As Christoph suggested [1], "Please just use plain kmalloc
everywhere and let the normal kernel error injection code
take care of injeting any errors."

[1] https://lore.kernel.org/r/20190829102426.GE20598@infradead.org/
Reported-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
Link: https://lore.kernel.org/r/20190904020912.63925-20-gaoxiang25@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

erofs: add "erofs_" prefix for common and short functions

Add erofs_ prefix to free_inode, alloc_inode, ...

Reported-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
Link: https://lore.kernel.org/r/20190904020912.63925-19-gaoxiang25@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

erofs: kill __submit_bio()

As Christoph pointed out [1], "
Why is there __submit_bio which really just obsfucates
what is going on?  Also why is __submit_bio using
bio_set_op_attrs instead of opencode it as the comment
right next to it asks you to? "

Let's use submit_bio directly instead.

[1] https://lore.kernel.org/r/20190830162812.GA10694@infradead.org/
Reported-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
Link: https://lore.kernel.org/r/20190904020912.63925-18-gaoxiang25@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

erofs: kill prio and nofail of erofs_get_meta_page()

As Christoph pointed out [1],
"Why is there __erofs_get_meta_page with the two weird
booleans instead of a single erofs_get_meta_page that
gets and gfp_t for additional flags and an unsigned int
for additional bio op flags."

And since all callers can handle errors, let's kill
prio and nofail and erofs_get_inline_page() now.

[1] https://lore.kernel.org/r/20190830162812.GA10694@infradead.org/
Reported-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
Link: https://lore.kernel.org/r/20190904020912.63925-17-gaoxiang25@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

erofs: localize erofs_grab_bio()

As Christoph pointed out [1], "erofs_grab_bio tries to
handle a bio_alloc failure, except that the function will
not actually fail due the mempool backing it."

Sorry about useless code, fix it now and
localize erofs_grab_bio [2].

[1] https://lore.kernel.org/r/20190830162812.GA10694@infradead.org/
[2] https://lore.kernel.org/r/20190902122016.GL15931@infradead.org/
Reported-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
Link: https://lore.kernel.org/r/20190904020912.63925-16-gaoxiang25@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

erofs: kill verbose debug info in erofs_fill_super

As Christoph said [1], "That is some very verbose
debug info.  We usually don't add that and let
people trace the function instead. "

[1] https://lore.kernel.org/r/20190829101545.GC20598@infradead.org/
Reported-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
Link: https://lore.kernel.org/r/20190904020912.63925-15-gaoxiang25@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

erofs: use dsb instead of layout for ondisk super_block

As Christoph pointed out [1], "Why is the variable name
for the on-disk subperblock layout? We usually still
calls this something with sb in the name, e.g. dsb.
for disksuper block. " Let's fix it.

[1] https://lore.kernel.org/r/20190829101545.GC20598@infradead.org/
Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
Link: https://lore.kernel.org/r/20190904020912.63925-14-gaoxiang25@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

erofs: better erofs symlink stuffs

Fix as Christoph suggested [1] [2], "remove is_inode_fast_symlink
and just opencode it in the few places using it"

and
"Please just set the ops directly instead of obsfucating that in
a single caller, single line inline function.  And please set it
instead of the normal symlink iops in the same place where you
also set those."

[1] https://lore.kernel.org/r/20190830163910.GB29603@infradead.org/
[2] https://lore.kernel.org/r/20190829102426.GE20598@infradead.org/
Reported-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
Link: https://lore.kernel.org/r/20190904020912.63925-13-gaoxiang25@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

erofs: update comments in inode.c

As Christoph suggested [1], update them all.

[1] https://lore.kernel.org/r/20190829102426.GE20598@infradead.org/
Reported-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
Link: https://lore.kernel.org/r/20190904020912.63925-12-gaoxiang25@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

erofs: update erofs_fs.h comments

As Christoph said [1] [2], update it now.

[1] https://lore.kernel.org/r/20190902124521.GA22153@infradead.org/
[2] https://lore.kernel.org/r/20190902120548.GB15931@infradead.org/
Reported-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
Link: https://lore.kernel.org/r/20190904020912.63925-11-gaoxiang25@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

erofs: use erofs_inode naming

As Christoph suggested [1], "Why is this called vnode instead
of inode?  That seems like a rather odd naming for a Linux
file system."

[1] https://lore.kernel.org/r/20190829101545.GC20598@infradead.org/
Reported-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
Link: https://lore.kernel.org/r/20190904020912.63925-10-gaoxiang25@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

erofs: kill erofs_{init,exit}_inode_cache

As Christoph said [1] "having this function seems
entirely pointless", let's kill those.

filesystem                              function name
ext2,f2fs,ext4,isofs,squashfs,cifs,...  init_inodecache

In addition, add a necessary "rcu_barrier()" on exit_fs();

[1] https://lore.kernel.org/r/20190829101545.GC20598@infradead.org/
Reported-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
Link: https://lore.kernel.org/r/20190904020912.63925-9-gaoxiang25@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

erofs: better naming for erofs inode related stuffs

updates inode naming
 - kill is_inode_layout_compression [1]
 - kill magic underscores [2] [3]
 - better naming for datamode & data_mapping_mode [3]
 - better naming erofs_inode_{compact, extended} [4]

[1] https://lore.kernel.org/r/20190829102426.GE20598@infradead.org/
[2] https://lore.kernel.org/r/20190829102426.GE20598@infradead.org/
[3] https://lore.kernel.org/r/20190902122627.GN15931@infradead.org/
[4] https://lore.kernel.org/r/20190902125438.GA17750@infradead.org/
Reported-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
Link: https://lore.kernel.org/r/20190904020912.63925-8-gaoxiang25@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

erofs: use feature_incompat rather than requirements

As Christoph said [1], "This is only cosmetic, why
not stick to feature_compat and feature_incompat?"

In my thought, requirements means "incompatible"
instead of "feature" though.

[1] https://lore.kernel.org/r/20190902125109.GA9826@infradead.org/
Reported-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
Link: https://lore.kernel.org/r/20190904020912.63925-7-gaoxiang25@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

erofs: update erofs_inode_is_data_compressed helper

As Christoph said, "This looks like a really obsfucated
way to write:
return datamode == EROFS_INODE_FLAT_COMPRESSION ||
datamode == EROFS_INODE_FLAT_COMPRESSION_LEGACY; "

Although I had my own consideration, it's the right way for now.

[1] https://lore.kernel.org/r/20190829095954.GB20598@infradead.org/
Reported-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
Link: https://lore.kernel.org/r/20190904020912.63925-6-gaoxiang25@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

erofs: kill __packed for on-disk structures

As Christoph suggested "Please don't add __packed" [1],
remove all __packed except struct erofs_dirent here.

Note that all on-disk fields except struct erofs_dirent
(12 bytes with a 8-byte nid) in EROFS are naturally aligned.

[1] https://lore.kernel.org/r/20190829095954.GB20598@infradead.org/
Reported-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
Link: https://lore.kernel.org/r/20190904020912.63925-5-gaoxiang25@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

erofs: some macros are much more readable as a function

As Christoph suggested [1], these macros are much
more readable as a function.

[1] https://lore.kernel.org/r/20190829095954.GB20598@infradead.org/
Reported-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
Link: https://lore.kernel.org/r/20190904020912.63925-4-gaoxiang25@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

erofs: on-disk format should have explicitly assigned numbers

As Christoph suggested [1], on-disk format should have
explicitly assigned numbers.

[1] https://lore.kernel.org/r/20190829095954.GB20598@infradead.org/
Reported-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
Link: https://lore.kernel.org/r/20190904020912.63925-3-gaoxiang25@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

erofs: remove all the byte offset comments

As Christoph suggested [1], "Please remove all the byte offset comments.
that is something that can easily be checked with gdb or pahole."

[1] https://lore.kernel.org/r/20190829095954.GB20598@infradead.org/
Reported-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
Link: https://lore.kernel.org/r/20190904020912.63925-2-gaoxiang25@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8723bs: Remove return statement from void function

Fix the following checkpatch warning:

"WARNING: void function return statements are not generally useful"

Signed-off-by: Leandro Ribeiro <leandrohr@riseup.net>
Link: https://lore.kernel.org/r/20190904210631.13599-1-leandrohr@riseup.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8192e: remove unnecessary blank line

Fix checkpath error "CHECK: Blank lines aren't necessary after an open
brace '{'"
in rtllib.h:482.

Signed-off-by: Beatriz Martins de Carvalho <martinsdecarvalhobeatriz@gmail.com>
Link: https://lore.kernel.org/r/20190904210326.17983-1-martinsdecarvalhobeatriz@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: exfat: Use kmemdup in exfat_symlink()

Use kmemdup rather than duplicating its implementation

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20190905030047.88401-1-yuehaibing@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: exfat: remove unused including <linux/version.h>

Remove including <linux/version.h> that don't need it.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20190905025623.63210-1-yuehaibing@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: exfat: remove duplicated include from exfat_super.c

Remove duplicated include.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20190905025608.61884-1-yuehaibing@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: exfat: remove the redundant check when kfree an object in exfat_destroy_inode

kfree has taken the null check in account. hence it is unnecessary to add the
null check before kfree the object. Just remove it.

Reported-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: zhong jiang <zhongjiang@huawei.com>
Link: https://lore.kernel.org/r/1567591408-24268-1-git-send-email-zhongjiang@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: exfat: Fix two missing unlocks on error paths

These two error paths need to unlock before we can return.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20190904095908.GA7007@mwanda
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

erofs: using switch-case while checking the inode type.

while filling the linux inode, using switch-case statement to check
the type of inode.
switch-case statement looks more clean here.

Signed-off-by: Pratik Shinde <pratikshinde320@gmail.com>
Reviewed-by: Gao Xiang <gaoxiang25@huawei.com>
Link: https://lore.kernel.org/r/20190830095615.10995-1-pratikshinde320@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: exfat: cleanup explicit comparisons to NULL

Fixes checkpatch.pl warnings:

  CHECK: Comparison to NULL could be written "expr"
  CHECK: Comparison to NULL could be written "!expr"

Signed-off-by: Valentin Vidic <vvidic@valentin-vidic.from.hr>
Link: https://lore.kernel.org/r/20190903205659.18856-1-vvidic@valentin-vidic.from.hr
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Staging: rtl8723bs: Use kzfree rather than its implementation

Use kzfree instead of memset() + kfree().

Signed-off-by: zhong jiang <zhongjiang@huawei.com>
Link: https://lore.kernel.org/r/1567566079-7412-4-git-send-email-zhongjiang@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Merge tag 'iio-for-5.4b-take3' of git://git./linux/kernel/git/jic23/iio into staging-next

Jonathan writes:

Second set of new device support, cleanups and features for IIO in the 5.4 cycle

Revised pull request to fix up a missing Signed-off-by and roll in
a fix in the lsm9ds1 support after I broke it when applying.
Revised again because the fix changed a hash meaning a fix
that previously followed it now had the wrong fixes tag.

A few fixes in here that could have gone a faster path but aren't quite
worth the rush for 5.3.

New device support
* ad7606
  - Support the ad7606b which adds a software controlled mode alongside
    the pin controlled only approach of the ad7606. Including dt-bindings.
* lsm6dsx
  - Add support for the gyro and accelerometer part of the lsm9ds1 which is
    a compound device also including a magnetometer (st_sensors driver).
    Includes bindings and precursor rework of the driver.

Features
* ad7192
  - Add support for low pass filter control.
  - DT binding docs.

Cleanups and minor fixes
* MAINTAINERS
  - Fix a typo in a path.
  - Add entry for ad7606
* ad5380
  - Fix a failure to dereference a pointer before atempting to assign the
    value.
* ad7192
  - Drop platform data as not used in mainline and we now have full DT bindings.
* ad7606
  - YAML conversion for dt-bindings.
* adis16240
  - Rework write_raw to make it more readable using GENMASK.
* adis16460
  - Fix and issue with an unsigned variable holding potential negatives.
* cros_ec
  - Fix missing default of calibration vector so that we get 'something'
    before calibration is complete on a given axis.
* hid-sensors
  - Use int_pow instead of opencoding.
* isl29501
  - rename dt-binding docs to include renesas inline with other renesas parts
    and general current convention.
* kxcjk1013
  - Improve comments on the 'unusual' ACPI ids used to identify which sensor
    is which in certain laptops.
* lsm6dsx
  - Add one bit to the fifo status masks for a number of parts.
  - Drop a reserved entry from the sensitivity values to tidy up interface.
  - Use core conversion macro from G to m/s^2 for lsm9ds1 to make it easier
    to relate to the datasheet and consistent with other parts supported.
* max1027
  - Use device managed APIs to avoid manual error handling and cleanup.
* rfd77402
  - Typo in Kconfig help.
* sc27xx
  - Switch to polling mode from interrupts as interrupt handling typically
    to slow for very short sleeps.
* st-sensors
  - Fix some missing selects for regmap.
* tools
  - Add a .gitignore containing the binary outputs.

* tag 'iio-for-5.4b-take3' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (27 commits)
  iio: imu: st_lsm6dsx: rely on IIO_G_TO_M_S_2 for gain definition for LSM9DS1
  iio: imu: st_lsm6dsx: remove invalid gain value for LSM9DS1
  iio: cros_ec: set calibscale for 3d MEMS to unit vector
  iio: dac: ad5380: fix incorrect assignment to val
  iio: imu: st_lsm6dsx: Fix FIFO diff mask for tagged fifo
  dt-bindings: iio: imu: st_lsm6dsx: add lsm9ds1 device bindings
  iio: imu: st_lsm6dsx: add support for accel/gyro unit of lsm9ds1
  iio: imu: st_lsm6dsx: move register definitions to sensor_settings struct
  iio: imu: st_lsm6dsx: introduce update_fifo function pointer
  dt-bindings: iio: light: isl29501: Rename bindings documentation file
  Kconfig: Fix the reference to the RFD77402 ToF sensor in the 'help' section
  iio: st_sensors: Fix build error
  dt-bindings: iio: adc: Add AD7606B ADC documentation
  dt-bindings: iio: adc: Migrate AD7606 documentation to yaml
  MAINTAINERS: Add Beniamin Bia for AD7606 driver
  iio: adc: ad7606: Add support for AD7606B ADC
  tools: iio: add .gitignore
  iio: adc: sc27xx: Change to polling mode to read data
  iio: hid-sensor-attributes: Convert to use int_pow()
  iio: adc: max1027: Use device-managed APIs
  ...

iio: imu: st_lsm6dsx: rely on IIO_G_TO_M_S_2 for gain definition for LSM9DS1

Rely on IIO_G_TO_M_S_2 macro for LSM9DS1 accelerometer gain definitions

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

iio: imu: st_lsm6dsx: remove invalid gain value for LSM9DS1

Get rid of invalid sensitivity value for LSM9DS1 gyro sensor

Fixes: 52f4b1f19679 ("iio: imu: st_lsm6dsx: add support for accel/gyro unit of lsm9ds1")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

staging: exfat: drop local TRUE/FALSE defines

Replace with bool where it makes sense. Also drop unused local
variable lossy in fat_find_dir_entry.

Reported-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Valentin Vidic <vvidic@valentin-vidic.from.hr>
Link: https://lore.kernel.org/r/20190903185537.25099-1-vvidic@valentin-vidic.from.hr
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: exfat: fix spelling errors in comments

Fixes checkpatch.pl warnings:

  CHECK: 'consistancy' may be misspelled - perhaps 'consistency'?
  CHECK: 'stuct' may be misspelled - perhaps 'struct'?

Signed-off-by: Valentin Vidic <vvidic@valentin-vidic.from.hr>
Link: https://lore.kernel.org/r/20190903165408.16010-1-vvidic@valentin-vidic.from.hr
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: exfat: cleanup braces for if/else statements

Fixes checkpatch.pl warnings:

  CHECK: Unbalanced braces around else statement
  CHECK: braces {} should be used on all arms of this statement

Signed-off-by: Valentin Vidic <vvidic@valentin-vidic.from.hr>
Link: https://lore.kernel.org/r/20190903164732.14194-1-vvidic@valentin-vidic.from.hr
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

iio: cros_ec: set calibscale for 3d MEMS to unit vector

By default, set the calibscale vector to unit vector.
When calibrating one axis, the other axis calibrations  are sent as well.
If left to 0, sensor data from uncalibrated axis are zero'ed out until
all axis are calibrated.

Fixes: ed1f2e85da79 ("iio: cros_ec: Add calibscale for 3d MEMS ")
Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

iio: dac: ad5380: fix incorrect assignment to val

Currently the pointer val is being incorrectly incremented
instead of the value pointed to by val. Fix this by adding
in the missing * indirection operator.

Addresses-Coverity: ("Unused value")
Fixes: c03f2c536818 ("staging:iio:dac: Add AD5380 driver")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

iio: imu: st_lsm6dsx: Fix FIFO diff mask for tagged fifo

According to the latest version of datasheet the mask
for number of unread sensor data in FIFO_STATUS registers
has been extended to 10 bits

The devices involved are:
 - LSM6DSO
 - LSM6DSOX
 - ASM330LHH
 - LSM6DSR
 - ISM330DHCX

Signed-off-by: mario tesi <mario.tesi@st.com>
Acked-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

dt-bindings: iio: imu: st_lsm6dsx: add lsm9ds1 device bindings

Note the binding is st,lsm9ds1-imu.  This device is effectively
two separate devices in the same package. (separate addreses,
chip selects etc) The magnetometer is already supported
as lsm9ds1-mag.  imu may not be the best name but it's the best
that anyone has yet come up with for a gyro and accel part.

Signed-off-by: Martin Kepplinger <martin.kepplinger@puri.sm>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

iio: imu: st_lsm6dsx: add support for accel/gyro unit of lsm9ds1

The LSM9DS1's accelerometer / gyroscope unit and it's magnetometer (separately
supported in iio/magnetometer/st_magn*) are located on a separate i2c addresses
on the bus.

For the datasheet, see https://www.st.com/resource/en/datasheet/lsm9ds1.pdf

Treat it just like the LSM6* devices and, despite it's name, hook it up
to the st_lsm6dsx driver, using it's basic functionality.

accelerometer and gyroscope are not independently clocked. It runs at the gyro
frequencies if both are enabled, see chapter 7.12 of the datasheet.
We could have handled this as a single IIO device but we have split
it up to be more consistent with the other more flexible devices.

Despite supporting and testing the LSM9DS1, we call the gyro channels
iio_chan_spec struct "st_lsm6ds0_gyro_channels" because the register
description is equal. This suggests that supporting LSM6DS0 should be
trivial to do.

Signed-off-by: Martin Kepplinger <martin.kepplinger@puri.sm>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

staging: rtl8723bs: replace __inline by inline

Currently, __inline is #defined as inline in compiler_types.h, so this
should not change functionality. It is preparation for removing said
#define.

While at it, change some "inline static" to the customary "static
inline" order.

Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Link: https://lore.kernel.org/r/20190830231527.22304-2-linux@rasmusvillemoes.dk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: use skb_put_data instead of skb_put/memcpy pair

skb_put_data is shorter and clear.

Signed-off-by: Ivan Safonov <insafonov@gmail.com>
Link: https://lore.kernel.org/r/20190901195301.GA16043@alpha
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: kpc2000: Fix long constant sparse warning

It fixed following warning in kpc2000 driver
"constant XXXX is so big it is unsigned long"

Signed-off-by: Harsh Jain <harshjain32@gmail.com>
Link: https://lore.kernel.org/r/20190831115532.2398-1-harshjain32@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: exfat: check for null return from call to FAT_getblk

A call to FAT_getblk is missing a null return check which can
lead to a null pointer dereference.  Fix this by adding a null
check to match all the other FAT_getblk return sanity checks.

Addresses-Coverity: ("Dereference null return")
Fixes: c48c9f7ff32b ("staging: exfat: add exfat filesystem code to staging")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/20190830175050.12706-1-colin.king@canonical.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: greybus: light: fix a couple double frees

The problem is in gb_lights_request_handler().  If we get a request to
change the config then we release the light with gb_lights_light_release()
and re-allocated it.  However, if the allocation fails part way through
then we call gb_lights_light_release() again.  This can lead to a couple
different double frees where we haven't cleared out the original values:

gb_lights_light_v4l2_unregister(light);
...
kfree(light->channels);
kfree(light->name);

I also made a small change to how we set "light->channels_count = 0;".
The original code handled this part fine and did not cause a use after
free but it was sort of complicated to read.

Fixes: 2870b52bae4c ("greybus: lights: add lights implementation")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Rui Miguel Silva <rmfrfs@gmail.com>
Link: https://lore.kernel.org/r/20190829122839.GA20116@mwanda
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rts5208: Fix checkpath warning

This patch fixes the following checkpath warning
in the file drivers/staging/rts5208/rtsx_transport.c:546

WARNING: line over 80 characters
+                               option = RTSX_SG_VALID | RTSX_SG_END |
RTSX_SG_TRANS_DATA;

Signed-off-by: P SAI PRASANTH <saip2823@gmail.com>
Link: https://lore.kernel.org/r/20190831034926.GA17810@dell-inspiron
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rts5208: Fixed checkpath warning.

This patch solves the following checkpatch.pl's message in drivers/staging/rts5208/rtsx_transport.c:397.

WARNING: line over 80 characters
+                               option = RTSX_SG_VALID | RTSX_SG_END | RTSX_SG_TRANS_DATA;

Signed-off-by: Prakhar Sinha <prakharsinha2808@gmail.com>
Link: https://lore.kernel.org/r/20190830121656.GA2740@MeraComputer
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rts5208: remove redundant sd30_mode checks

There are two hunks of code that check if sd30_mode is true however
an earlier check in an outer code block on sd30_mode being false means
that sd30_mode can never be true at these points so these checks are
redundant.  Remove the dead code.

Addresses-Coverity: ("Logically dead code")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/20190830081047.13630-1-colin.king@canonical.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: exfat: remove return and error return via a goto

The return statement is incorrect, the error exit should be by
assigning ret with the error code and exiting via label out.
Thanks to Valdis Klētnieks for correcting my original fix.

Addresses-Coverity: ("Structurally dead code")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/20190902094052.28029-1-colin.king@canonical.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: exfat: fix uninitialized variable ret

Currently there are error return paths in ffsReadFile that
exit via lable err_out that return and uninitialized error
return in variable ret. Fix this by initializing ret to zero.

Addresses-Coverity: ("Uninitialized scalar variable")
Fixes: c48c9f7ff32b ("staging: exfat: add exfat filesystem code to staging")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Cc: Valdis Kletnieks <valdis.kletnieks@vt.edu>,
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Link: https://lore.kernel.org/r/20190830184644.15590-1-colin.king@canonical.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: exfat: use BIT macro for defining sizes

Fixes checkpatch.pl warning:

  CHECK: Prefer using the BIT macro

Signed-off-by: Valentin Vidic <vvidic@valentin-vidic.from.hr>
Link: https://lore.kernel.org/r/20190902184319.11971-1-vvidic@valentin-vidic.from.hr
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: exfat: cleanup blank line warnings

Fixes checkpatch.pl warnings:

  CHECK: Please don't use multiple blank lines
  CHECK: Blank lines aren't necessary after an open brace '{'
  CHECK: Please use a blank line after function/struct/union/enum
         declarations

Signed-off-by: Valentin Vidic <vvidic@valentin-vidic.from.hr>
Link: https://lore.kernel.org/r/20190902190329.18685-1-vvidic@valentin-vidic.from.hr
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: exfat: make exfat depend on BLOCK

This should fix a build error in some configurations when CONFIG_BLOCK
is not selected.  Also properly set the dependancy for no FAT support at
the same time.

Reported-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Valdis Kletnieks <valdis.kletnieks@vt.edu>
Link: https://lore.kernel.org/r/20190902174631.GB31445@kroah.com
Acked-by: Randy Dunlap <rdunlap@infradead.org> # build-tested
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/exfat - by default, prohibit mount of fat/vfat

Concerns have been raised about the exfat driver accidentally mounting
fat/vfat file systems.  Add an extra configure option to help prevent that.

Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu>
Link: https://lore.kernel.org/r/245727.1567183359@turing-police
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

erofs: reduntant assignment in __erofs_get_meta_page()

As Joe Perches suggested [1],
  err = bio_add_page(bio, page, PAGE_SIZE, 0);
- if (unlikely(err != PAGE_SIZE)) {
+ if (err != PAGE_SIZE) {
  err = -EFAULT;
  goto err_out;
  }

The initial assignment to err is odd as it's not
actually an error value -E<FOO> but a int size
from a unsigned int len.

Here the return is either 0 or PAGE_SIZE.

This would be more legible to me as:

if (bio_add_page(bio, page, PAGE_SIZE, 0) != PAGE_SIZE) {
err = -EFAULT;
goto err_out;
}

[1] https://lore.kernel.org/r/74c4784319b40deabfbaea92468f7e3ef44f1c96.camel@perches.com/
Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
Link: https://lore.kernel.org/r/20190829171741.225219-1-gaoxiang25@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

erofs: remove all likely/unlikely annotations

As Dan Carpenter suggested [1], I have to remove
all erofs likely/unlikely annotations.

[1] https://lore.kernel.org/linux-fsdevel/20190829154346.GK23584@kadam/
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
Link: https://lore.kernel.org/r/20190829163827.203274-1-gaoxiang25@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

MAINTAINERS: fix up exfat directory location

I messed up on the exfat MAINTAINER entry, the code is in
drivers/staging/exfat/ not fs/exfat/

Cc: Valdis Kletnieks <valdis.kletnieks@vt.edu>
Reported-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: exfat: add exfat filesystem code to staging

The exfat code needs a lot of work to get it into "real" shape for
the fs/ part of the kernel, so put it into drivers/staging/ for now so
that it can be worked on by everyone in the community.

The full specification of the filesystem can be found at:
  https://docs.microsoft.com/en-us/windows/win32/fileio/exfat-specification

Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20190828160817.6250-1-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: most: sound: Fix error path of audio_init

If most_register_configfs_subsys() fails, we should
call most_deregister_component() do cleanup.

Reported-by: Hulk Robot <hulkci@huawei.com>
Fixes: 919c03ae11b9 ("staging: most: enable configfs support")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20190827131346.12704-1-yuehaibing@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8192u: Fix indentation

Checkpatch reports WARNING:SUSPECT_CODE_INDENT in several places. Fix
this by aligning code properly with tabs.

Signed-off-by: Stephen Brennan <stephen@brennan.io>
Link: https://lore.kernel.org/r/20190828043542.3753-1-stephen@brennan.io
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: greybus: fix more header declarations

More headers needed to be fixed when moving greybus out of staging and
enabling the COMPILE_TEST option.

Add forward declarations for the needed structures.

Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Rui Miguel Silva <rui.silva@linaro.org>
Reviewed-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20190828124825.20800-1-rui.silva@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

iio: imu: st_lsm6dsx: move register definitions to sensor_settings struct

Move some register definitions to the per-device array of struct
st_lsm6dsx_sensor_settings in order to simplify adding new sensor
devices to the driver.

Also, remove completely unused register definitions.

Signed-off-by: Martin Kepplinger <martin.kepplinger@puri.sm>
Acked-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

staging: greybus: add missing includes

Before moving greybus core out of staging and moving header files to
include/linux some greybus header files were missing the necessary
includes. This would trigger compilation faillures with some example
errors logged bellow for with CONFIG_KERNEL_HEADER_TEST=y.

So, add the necessary headers to compile clean before relocating the
header files.

./include/linux/greybus/hd.h:23:50: error: unknown type name 'u16'
  int (*cport_disable)(struct gb_host_device *hd, u16 cport_id); ^~~
./include/linux/greybus/greybus_protocols.h:1314:2: error: unknown type name '__u8'
  __u8 data[0];
  ^~~~
./include/linux/greybus/hd.h:24:52: error: unknown type name 'u16'
  int (*cport_connected)(struct gb_host_device *hd, u16 cport_id); ^~~
./include/linux/greybus/hd.h:25:48: error: unknown type name 'u16'
  int (*cport_flush)(struct gb_host_device *hd, u16 cport_id); ^~~
./include/linux/greybus/hd.h:26:51: error: unknown type name 'u16'
  int (*cport_shutdown)(struct gb_host_device *hd, u16 cport_id, ^~~
./include/linux/greybus/hd.h:27:5: error: unknown type name 'u8'
u8 phase, unsigned int timeout);
     ^~
./include/linux/greybus/hd.h:28:50: error: unknown type name 'u16'
  int (*cport_quiesce)(struct gb_host_device *hd, u16 cport_id, ^~~
./include/linux/greybus/hd.h:29:5: error: unknown type name 'size_t'
     size_t peer_space, unsigned int timeout);
     ^~~~~~
./include/linux/greybus/hd.h:29:5: note: 'size_t' is defined in header '<stddef.h>'; did you forget to '#include <stddef.h>'?
./include/linux/greybus/hd.h:1:1:
+#include <stddef.h>
 /* SPDX-License-Identifier: GPL-2.0 */
./include/linux/greybus/hd.h:29:5:
     size_t peer_space, unsigned int timeout);
     ^~~~~~
./include/linux/greybus/hd.h:30:48: error: unknown type name 'u16'
  int (*cport_clear)(struct gb_host_device *hd, u16 cport_id); ^~~
./include/linux/greybus/hd.h:32:49: error: unknown type name 'u16'
  int (*message_send)(struct gb_host_device *hd, u16 dest_cport_id, ^~~
./include/linux/greybus/hd.h:33:32: error: unknown type name 'gfp_t'
struct gb_message *message, gfp_t gfp_mask); ^~~~~
./include/linux/greybus/hd.h:35:55: error: unknown type name 'u16'
  int (*latency_tag_enable)(struct gb_host_device *hd, u16 cport_id);

Reported-by: kbuild test robot <lkp@intel.com>
Reported-by: Gao Xiang <hsiangkao@aol.com>
Signed-off-by: Rui Miguel Silva <rmfrfs@gmail.com>
Signed-off-by: Rui Miguel Silva <rui.silva@linaro.org>
Link: https://lore.kernel.org/r/20190827155302.25704-1-rui.silva@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: greybus: move es2 to drivers/greybus/

The es2 Greybus host controller has long been stable, so move it out of
drivers/staging/ to drivers/greybus/

Cc: Johan Hovold <johan@kernel.org>
Cc: greybus-dev@lists.linaro.org
Cc: linux-kernel@vger.kernel.org
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Alex Elder <elder@kernel.org>
Link: https://lore.kernel.org/r/20190825055429.18547-10-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: greybus: move the greybus core to drivers/greybus

The Greybus core code has been stable for a long time, and has been
shipping for many years in millions of phones.  With the advent of a
recent Google Summer of Code project, and a number of new devices in the
works from various companies, it is time to get the core greybus code
out of staging as it really is going to be with us for a while.

Cc: Johan Hovold <johan@kernel.org>
Cc: linux-kernel@vger.kernel.org
Cc: greybus-dev@lists.linaro.org
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Alex Elder <elder@kernel.org>
Link: https://lore.kernel.org/r/20190825055429.18547-9-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: greybus: move core include files to include/linux/greybus/

With the goal of moving the core of the greybus code out of staging, the
include files need to be moved to include/linux/greybus.h and
include/linux/greybus/

Cc: Vaibhav Hiremath <hvaibhav.linux@gmail.com>
Cc: Johan Hovold <johan@kernel.org>
Cc: Vaibhav Agarwal <vaibhav.sr@gmail.com>
Cc: Rui Miguel Silva <rmfrfs@gmail.com>
Cc: David Lin <dtwlin@gmail.com>
Cc: "Bryan O'Donoghue" <pure.logic@nexus-software.ie>
Cc: greybus-dev@lists.linaro.org
Cc: devel@driverdev.osuosl.org
Acked-by: Mark Greer <mgreer@animalcreek.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Alex Elder <elder@kernel.org>
Link: https://lore.kernel.org/r/20190825055429.18547-8-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: greybus: loopback: Fix up some alignment checkpatch issues

Some function prototypes do not match the expected alignment formatting
so fix that up so that checkpatch is happy.

Cc: "Bryan O'Donoghue" <pure.logic@nexus-software.ie>
Cc: Johan Hovold <johan@kernel.org>
Cc: greybus-dev@lists.linaro.org
Cc: devel@driverdev.osuosl.org
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Alex Elder <elder@kernel.org>
Link: https://lore.kernel.org/r/20190825055429.18547-7-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: greybus: log: Fix up some alignment checkpatch issues

Some function prototypes do not match the expected alignment formatting
so fix that up so that checkpatch is happy.

Cc: David Lin <dtwlin@gmail.com>
Cc: Johan Hovold <johan@kernel.org>
Cc: greybus-dev@lists.linaro.org
Cc: devel@driverdev.osuosl.org
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Alex Elder <elder@kernel.org>
Link: https://lore.kernel.org/r/20190825055429.18547-6-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: greybus: manifest: Fix up some alignment checkpatch issues

Some function prototypes do not match the expected alignment formatting
so fix that up so that checkpatch is happy.

Cc: Johan Hovold <johan@kernel.org>
Cc: greybus-dev@lists.linaro.org
Cc: devel@driverdev.osuosl.org
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Alex Elder <elder@kernel.org>
Link: https://lore.kernel.org/r/20190825055429.18547-5-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: greybus: hd: Fix up some alignment checkpatch issues

Some function prototypes do not match the expected alignment formatting
so fix that up so that checkpatch is happy.

Cc: Johan Hovold <johan@kernel.org>
Cc: greybus-dev@lists.linaro.org
Cc: devel@driverdev.osuosl.org
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Alex Elder <elder@kernel.org>
Link: https://lore.kernel.org/r/20190825055429.18547-4-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: greybus: remove license "boilerplate"

When the greybus drivers were converted to SPDX identifiers for the
license text, some license boilerplate was not removed.  Clean this up
by removing this unneeded text now.

Cc: Johan Hovold <johan@kernel.org>
Cc: Vaibhav Agarwal <vaibhav.sr@gmail.com>
Cc: "Bryan O'Donoghue" <pure.logic@nexus-software.ie>
Cc: greybus-dev@lists.linaro.org
Cc: devel@driverdev.osuosl.org
Acked-by: Mark Greer <mgreer@animalcreekk.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Alex Elder <elder@kernel.org>
Link: https://lore.kernel.org/r/20190825055429.18547-3-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: greybus: fix up SPDX comment in .h files

When these files originally got an SPDX tag, I used // instead of /* */
for the .h files.  Fix this up to use // properly.

Cc: Johan Hovold <johan@kernel.org>
Cc: greybus-dev@lists.linaro.org
Cc: devel@driverdev.osuosl.org
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Alex Elder <elder@kernel.org>
Link: https://lore.kernel.org/r/20190825055429.18547-2-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

erofs: fix compile warnings when moving out include/trace/events/erofs.h

As Stephon reported [1], many compile warnings are raised when
moving out include/trace/events/erofs.h:

In file included from include/trace/events/erofs.h:8,
                 from <command-line>:
include/trace/events/erofs.h:28:37: warning: 'struct dentry' declared inside parameter list will not be visible outside of this definition or declaration
  TP_PROTO(struct inode *dir, struct dentry *dentry, unsigned int flags),
                                     ^~~~~~
include/linux/tracepoint.h:233:34: note: in definition of macro '__DECLARE_TRACE'
  static inline void trace_##name(proto)    \
                                  ^~~~~
include/linux/tracepoint.h:396:24: note: in expansion of macro 'PARAMS'
  __DECLARE_TRACE(name, PARAMS(proto), PARAMS(args),  \
                        ^~~~~~
include/linux/tracepoint.h:532:2: note: in expansion of macro 'DECLARE_TRACE'
  DECLARE_TRACE(name, PARAMS(proto), PARAMS(args))
  ^~~~~~~~~~~~~
include/linux/tracepoint.h:532:22: note: in expansion of macro 'PARAMS'
  DECLARE_TRACE(name, PARAMS(proto), PARAMS(args))
                      ^~~~~~
include/trace/events/erofs.h:26:1: note: in expansion of macro 'TRACE_EVENT'
 TRACE_EVENT(erofs_lookup,
 ^~~~~~~~~~~
include/trace/events/erofs.h:28:2: note: in expansion of macro 'TP_PROTO'
  TP_PROTO(struct inode *dir, struct dentry *dentry, unsigned int flags),
  ^~~~~~~~

That makes me very confused since most original EROFS tracepoint code
was taken from f2fs, and finally I found

commit 43c78d88036e ("kbuild: compile-test kernel headers to ensure they are self-contained")

It seems these warnings are generated from KERNEL_HEADER_TEST feature and
ext4/f2fs tracepoint files were in blacklist.

Anyway, let's fix these issues for KERNEL_HEADER_TEST feature instead
of adding to blacklist...

[1] https://lore.kernel.org/lkml/20190826162432.11100665@canb.auug.org.au/

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Link: https://lore.kernel.org/r/20190826132653.100731-1-gaoxiang25@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8192u: Add or remove blank lines as required

This patch fixes the file r8190_rtl8256.c to avoid the following
checkpatch.pl warnings:
CHECK: Blank lines aren't necessary before a close brace '}'
CHECK: Please use a blank line after function/struct/union/enum declarations
CHECK: Please don't use multiple blank line

Signed-off-by: Sumera Priyadarsini <sylphrenadin@gmail.com>
Link: https://lore.kernel.org/r/20190826182227.30738-1-sylphrenadin@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8192u: Add or remove spaces to fix style issues

This patch fixes the file r8190_rtl8256.c to avoid the following
checkpatch.pl warnings:
CHECK: spaces preferred around that '<<' (ctx:VxV)
CHECK: spaces preferred around that '-' (ctx:VxV)
CHECK: No space is necessary after a cast

Signed-off-by: Sumera Priyadarsini <sylphrenadin@gmail.com>
Link: https://lore.kernel.org/r/20190826180909.27775-1-sylphrenadin@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8712: wifi: checkpatch style fix

Remove multiple blank lines.

Signed-off-by: Taihsiang Ho (tai271828) <tai271828@gmail.com>
Link: https://lore.kernel.org/r/20190826052018.18649-1-tai271828@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: most-core: Fix checkpatch warnings

Hi,

This patch solves the following checkpatch.pl's messages in drivers/staging/most/core.c.

WARNING: line over 80 characters
+ return snprintf(buf, PAGE_SIZE, "%s", ch_data_type[i].name);

CHECK: Please use a blank line after function/struct/union/enum declarations
+}
+/**

Signed-off-by: Peikan Tsai <peikantsai@gmail.com>
Link: https://lore.kernel.org/r/20190825175849.GA74586@MarkdeMacBook-Pro.local
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

iio: imu: st_lsm6dsx: introduce update_fifo function pointer

Introduce update_fifo routine pointer in st_lsm6dsx_fifo_ops data
structure since we will need a different update FIFO configuration
callback adding support for lsm6ds0/lsm9ds1 imu device

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Tested-by: Martin Kepplinger <martin.kepplinger@puri.sm>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

dt-bindings: iio: light: isl29501: Rename bindings documentation file

Rename the bindings documentation file for Renesas ISL29501 Time-of-flight
sensor from isl29501.txt to renesas,isl29501.txt.

This is part of an ongoing effort to name bindings documentation files for
Renesas IP blocks consistently, in line with the compat strings they
document.

Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

Kconfig: Fix the reference to the RFD77402 ToF sensor in the 'help' section

This should be RFD77402, not RFD77420.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>