staging: lustre: llite: Remove filtering of seclabel xattr

The security.capability xattr is used to implement File
Capabilities in recent Linux versions. Capabilities are a
fine grained approach to granting executables elevated
privileges. eg. /bin/ping can have capabilities
cap_net_admin, cap_net_raw+ep instead of being setuid root.

This xattr has long been filtered out by llite, initially for
stability reasons (b15587), and later over performance
concerns as this xattr is read for every file with eg.
'ls --color'. Since LU-2869 xattr's are cached on clients,
alleviating most performance concerns.

Removing llite's filtering of the security.capability xattr
enables using Lustre as a root filesystem, which is used on
some large clusters.

Signed-off-by: Robin Humble <plaguedbypenguins@gmail.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-9562
Reviewed-on: https://review.whamcloud.com/27292
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Reviewed-by: Sebastien Buisson <sbuisson@ddn.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: lustre: llite: handle xattr cache refill race

In ll_xattr_cache_refill() if the xattr cache was invalid (and no
request was sent) then return -EAGAIN so that ll_getxattr_common()
caller will fetch the xattr from the MDT.

Signed-off-by: John L. Hammond <john.hammond@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-10132
Reviewed-on: https://review.whamcloud.com/29654
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Lai Siyao <lai.siyao@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: lustre: ldlm: xattr locks are lost on mdt

On the server side mdt_intent_getxattr() can return EFAULT if a
buffer cannot be found, it is returned after lock_replace, where a
new lock is installed into lockp. An error forces ldlm_lock_enqueue()
to destroy the original lock, but ldlm_handle_enqueue0() drops the
reference on the new lock. The xattr client code implied intent
error is returned under a lock, which is immediately cancelled.
Check if a lock obtained and cancel it properly for error cases.
Note: we should support both cases for interop needs, an intent
error under a lock and with a lock abort. Keep returning a lock
with an intent error for interop purposes for now, to be dropped
later when client will get old enough. make all intent ops to
work through md_intent_lock: getxattr and layout, which should
extract the intent error.

Signed-off-by: Vitaly Fertman <vitaly.fertman@seagate.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-7433
Seagate-bug-id: MRP-3072 MRP-3137
Reviewed-on: http://review.whamcloud.com/17220
Reviewed-by: Andrew Perepechko <andrew.perepechko@seagate.com>
Reviewed-by: Andriy Skulysh <andriy.skulysh@seagate.com>
Tested-by: Elena V. Gryaznova <elena.gryaznova@seagate.com>
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Reviewed-by: Lai Siyao <lai.siyao@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: lustre: obd: change debug reporting in lmv_enqueue()

Remove LL_IT2STR(it) from debug macros in lmv_enqueue(). The
removal makes it possible to simplify the md_enqueue() functions.

Signed-off-by: Vitaly Fertman <vitaly.fertman@seagate.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-7433
Seagate-bug-id: MRP-3072 MRP-3137
Reviewed-on: http://review.whamcloud.com/17220
Reviewed-by: Andrew Perepechko <andrew.perepechko@seagate.com>
Reviewed-by: Andriy Skulysh <andriy.skulysh@seagate.com>
Tested-by: Elena V. Gryaznova <elena.gryaznova@seagate.com>
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Reviewed-by: Lai Siyao <lai.siyao@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: lustre: obd: create it_has_reply_body()

The lookup_intent it_op fields in many cases will be compared
to the settings of IT_OPEN | IT_UNLINK | IT_LOOKUP | IT_GETATTR.
Create a simple inline function for this common case.

Signed-off-by: Vitaly Fertman <vitaly.fertman@seagate.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-7433
Seagate-bug-id: MRP-3072 MRP-3137
Reviewed-on: http://review.whamcloud.com/17220
Reviewed-by: Andrew Perepechko <andrew.perepechko@seagate.com>
Reviewed-by: Andriy Skulysh <andriy.skulysh@seagate.com>
Tested-by: Elena V. Gryaznova <elena.gryaznova@seagate.com>
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Reviewed-by: Lai Siyao <lai.siyao@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: lustre: llite: initialize xattr->xe_namelen

When the allocation of xattr->xe_name was moved to kstrdup()
setting xattr->xe_namelen was dropped. This field is used
in several parts of the xattr cache code so it broke xattr
handling. Initialize xattr->xe_namelen when allocating
xattr->xe_name succeeds. Also change the debugging statement
to really report the xattr name instead of its length which
wasn't event being set.

Fixes: b3dd8957c23a ("staging: lustre: lustre: llite: Use kstrdup"
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: lustre: libcfs: use dynamic minors for /dev/{lnet, obd}

Request dynamic minor allocation when registering /dev/lnet and
/dev/obd.

Signed-off-by: John L. Hammond <john.hammond@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-100086
Reviewed-on: https://review.whamcloud.com/29741
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Jian Yu <jian.yu@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
Reviewed-by: NeilBrown <neilb@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: lustre: remove cruft from libcfs/linux/libcfs.h

These defines are unused or nearly unused, and do not
help at all.

Signed-off-by: NeilBrown <neilb@suse.com>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: lustre: discard linux-time.h

Very little is left in linux-time.h.
Move CFS_TICK to libcfs.h discard the test.

Signed-off-by: NeilBrown <neilb@suse.com>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: lustre: discard cfs_time_before_64()

cfs_time_before_64 is the same as time_before64()
similarly cfs_time_beforeq_64() matsches time_before_eq64()
So just use the standard interfaces.

Signed-off-by: NeilBrown <neilb@suse.com>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: lustre: discard cfs_duration_sec()

cfs_duration_sec() simply divides by HZ.
It is mostly used to report durations in debug messages.
Remove and just use X/HZ.

Signed-off-by: NeilBrown <neilb@suse.com>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: lustre: libcfs: remove cfs_timeout_cap()

This wrapper is only used once, so open-code it as max().

This allows us to remove the libcfs_time.h include file.

Signed-off-by: NeilBrown <neilb@suse.com>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: lustre: libcfs: discard cfs_time_after()

cfs_time_after() behaves exactly like time_after()
similarly cfs_time_aftereq() matches time_after_eq()

so discard the cfs versions.

Signed-off-by: NeilBrown <neilb@suse.com>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: lustre: libcfs: discard cfs_time_shift().

This function simply multiplies by HZ and adds jiffies.
This is simple enough to be opencoded, and doing so
makes the code easier to read.

Same for cfs_time_shift_64()

Signed-off-by: NeilBrown <neilb@suse.com>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: lustre: libcfs: discard cfs_time_add/sub

cfs_time_add adds its arguments.
cfs_time_sub subtracts finds the difference.
Discard these and use '+' and '-' directly.

This change highlighted a type error.  The structure field
cr_queued_time was used to store jiffies, but was declared
as time_t (meant for seconds).  So the time is changed to
"unsigned long".

Signed-off-by: NeilBrown <neilb@suse.com>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: lustre: cfs_time_current() -> jiffies.

Discard cfs_time_current() and cfs_time_current64()
and use jiffies and get_jiffies_64() like the rest of the kernel.

Signed-off-by: NeilBrown <neilb@suse.com>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: Android: Add 'vsoc' driver for cuttlefish.

The cuttlefish system is a virtual SoC architecture based on QEMU. It
uses the QEMU ivshmem feature to share memory regions between guest and
host with a custom protocol.

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Arve Hjønnevåg <arve@android.com>
Cc: Todd Kjos <tkjos@android.com>
Cc: Martijn Coenen <maco@android.com>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Cc: devel@driverdev.osuosl.org
Cc: kernel-team@android.com
Signed-off-by: Greg Hartman <ghartman@google.com>
[astrachan: rebased against 4.16, added TODO, fixed checkpatch issues]
Signed-off-by: Alistair Strachan <astrachan@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: android: ion: remove duplicate buffer field initializes

As a result of various previous patches, ion_buffer_create() now
has two sets of identical statements for initializing two fields of
the buffer struct, next to each other.  Remove one set.

Move the initialization of these two fields together with the
statements that initialize the other two fields from the function
parameters, prior to the heap allocate() call, for consistency.

Signed-off-by: Todd Poynor <toddpoynor@google.com>
Acked-by: Sumit Semwal <sumit.semwal@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: lustre: ldlm: free resource when ldlm_lock_create() fails.

ldlm_lock_create() gets a resource, but don't put it on
all failure paths. It should.

Signed-off-by: NeilBrown <neilb@suse.com>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: lustre: tidy up ldlm_resource_putref()

1/ the return value of ldlm_resource_putref() is never
  used, so change it to return 'void'.
2/ Move all of the code to run on the last putref to
   __ldlm_resource_putref_final().  This means a lock
   is taken in one function and dropped in another, but
   that isn't too uncommon, and will disappear in a future
   patch.
   Now that the code it together, it becomes apparent that
   we are dropping a ref on the namespace *before* the last
   use.  So keep the ref until after.

Signed-off-by: NeilBrown <neilb@suse.com>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: lustre: remove unneeded include.

cfs_hash usage was removed from cl_object.c
some time ago, so remove the #include as well.

Signed-off-by: NeilBrown <neilb@suse.com>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: lustre: remove unused hash tables.

exp_lock_hash and exp_flock_hash are unused in
the client, so remove all references.

Also remove unused hashtable size definitions.

Signed-off-by: NeilBrown <neilb@suse.com>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: lustre: remove unused ldlm_completion_ast_async()

This function is unused.

Signed-off-by: NeilBrown <neilb@suse.com>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: lustre: remove invariant in cl_io_read_ahead()

This invariant can fail as ci_type is somtimes CIS_INIT.

According to Jinshan Xiong, or of the most recent significant
change to this code, "We should get rid of it."

So do that.

Fixes: 1e1db2a97be5 ("staging: lustre: clio: Revise read ahead implementation")
Cc: Jinshan Xiong <jinshan.xiong@intel.com>
Signed-off-by: NeilBrown <neilb@suse.com>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: nvec: convert to use GPIO descriptors

Use GPIO descriptors instead of relying on the old method.

Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Marc Dietrich <marvin24@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: nvec: cleanup use of dev in probe function

This cleanups the probe function a bit by using a dev variable instead
of &pdev-dev.

Signed-off-by: Marc Dietrich <marvin24@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: nvec: simplify getting .drvdata

We should get drvdata from struct device directly. Going via
platform_device is an unneeded step back and forth.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Marc Dietrich <marvin24@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: fbtft: Fixed lines exceeding columns limit

Fix checkpatch.pl warnings of lines exceeding 80 columns.
Break lines in order to reduce instructions lengths to less than 80 columns.

Signed-off-by: Renato Soma <renatoys08@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: Augment TODO file with GPIO work item

To make sure that this driver does not leave staging before it
is properly converted to use the new GPIO descriptor API,
augment the TODO file with this work item.

Cc: Johnny Kim <johnny.kim@microchip.com>
Cc: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Ajay Singh <ajay.kathat@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: olpc_dcon: Augment TODO file with GPIO work item

To make sure that this driver does not leave staging before it
is properly converted to use the new GPIO descriptor API,
augment the TODO file with this work item.

Cc: Andres Salomon <dilinger@queued.net>
Cc: Jens Frederich <jfrederich@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: nvec: Augment TODO file with GPIO work item

To make sure that this driver does not leave staging before it
is properly converted to use the new GPIO descriptor API,
augment the TODO file with this work item.

Cc: Marc Dietrich <marvin24@gmx.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: gpio-mt7621: Include the right header

GPIO drivers should include <linux/gpio/driver.h> only, the
<linux/gpio.h> header is deprecated.

Cc: John Crispin <john@phrozen.org>
Cc: Zhiyong Tao <zhiyong.tao@mediatek.com>
Cc: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: atomisp: Augment TODO file with GPIO work item

To make sure that these drivers do not leave staging before they
are properly converted to use the new GPIO descriptor API,
augment the TODO file with this work item.

Cc: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: iio: Augment TODO file with GPIO work item

To make sure that these drivers do not leave staging before they
are properly converted to use the new GPIO descriptor API,
augment the TODO file with this work item.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Jonathan Cameron <jonathan.cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: greybus: Add TODO file with GPIO work items

To make sure that these drivers do not leave staging before they
are properly converted to use the new GPIO descriptor API, and the
GPIOLIB_IRQCHIP helper library, create the TODO file with these work
items.

Cc: Johan Hovold <johan@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: fbtft: Add TODO file with GPIO work item

To make sure that these drivers do not leave staging before they
are properly converted to use the new GPIO descriptor API, create
the TODO file with this work item.

Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Noralf Tronnes <notro@tronnes.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: emxx_udc: Add GPIO descriptor work to TODO

To make sure this driver does not leave staging without a proper
conversion to the GPIO descriptor API, leave a note in the TODO.

Cc: Magnus Damm <damm+renesas@opensource.se>
Cc: Simon Horman <horms+renesas@verge.net.au>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010: init local variables when they are declared in ks7010_sdio_probe

This commit change init point of two variables to forward them to
init time. This variables are just being assigned some lines after
and it is more clear to init them when the init value is known and
in this case this is known when they are declared.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010: align comments in ks_wlan_private_handler

This commit align comment inside ks_wlan_private_handler
WEXT private driver operations. This improves readability.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010: review includes of michael_mic.c file

This commit reviews includes of michael_mic.c source file
removing those which are not being used at all and
reordering the remaining ones in alphabetically order.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010: review includes of ks7010_sdio file

This commit reviews includes of ks7010_sdio.c source
file removing those which are not being used at all.
Kernel header includes have been ordered alphabetically
also.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010: remove enum from ks_wlan.h header

This commit removes an enum which is in ks_wlan.h
and it is not being used at all.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010: review includes of ks_wlan.h file

This commit reviews includes of ks_wlan.h header file.
It removes those which are not being used at all. It
also reorder remaining ones in alphabetical order.
The linux/module.h include file has been moved to the
correct file which is ks7010_sdio.c in order to be able
to compile the driver without problems.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010: review includes of ks_wlan_net.c file

This commit reviews really needed includes in ks_wlan_net.c
source file. It removes those which are not needed at all.
It also reorder the remaining ones in alphabetical order.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010: refactor ks_wlan_set_wps_enable function

This commit refactors ks_wlan_set_wps_enable function to
improve readability handling the error first to avoid an
'else'.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010: refactor ks_wlan_set_tx_gain function

This commit refactors ks_wlan_set_rx_gain function to
improve readability:
    - error condition is handling the error to avoid an 'else'
    - ternary operator is used to clean if-else block assignment.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010: refactor ks_wlan_set_rx_gain function

This commit refactors ks_wlan_set_rx_gain function to
improve readability:
    - error condition is handling the error to avoid an 'else'
    - ternary operator is used to clean if-else block assignment.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010: change if-else condition assignment to use ternary operator

This commit changes an if-else block used to just assign a
variable to use a ternary operator to do the same improving
readability.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010: refactor ks_wlan_set_encode function

This commit refactors ks_wlan_set_encode function to improve
readability. It just removes level indentation in some paths
as well as removes not needed conditions paths which was
checked before. Changes are as follows:

 - (dwrq->length > MAX_KEY_SIZE) check has been moved to the top.
 - extra check about (dwrq->length > 0) inside an if block where
   that was the condition to enter inside it has been removed.
 - (dwrq->flags & IW_ENCODE_NOKEY) check has been turned to avoid
   one level indentation.
 - extra check (index >= 0) && (index < 4) has been removed. In
   the top of the file invalid index values are being checked
   so it has no sense to check that again.
 - remove commented line.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010: remove auxiliar zeros buffer in ks_wlan_get_encode

This commit removes the local buffer zeros in ks_wlan_get_encode
function. It also refactors related conditions in order to fill
'extra' output parameter of the function. Originally this zeros
is just memset to zeros and only being used if drw->length is
truncated to zero because of priv->reg.wep_key[index].size is
greater than 16 chars. In those cases the final if statement is
just using zeros but it is using memcpy with a length of zero
bytes which has no sense. Instead of that just handle the good
case copying from the same source the number of bytes of
priv->reg.wep_key[index].size. If it is zero the final 'extra'
parameter won't be copied at all because the number of bytes to
copy will be zero. With this change the code gets simplified.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010: remove not used enum in eap_packet header file

This commit removes an anonymous enumerator inside eap_packet
header file because it is not being used anymore.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010: remove struct ieee802_1x_eapol_key

This commit removes ieee802_1x_eapol_key struct because
it is not being used at all. It also removes definitions
related to some fields of the removed struct.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010: group some cases in switch-case block in hostif_mib_set_confirm

This commit groups some case statements because its behaviour is
just do nothing which is the same as the default. Clean 'break'
keyword in those which are affected.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010: refactor code for hostif_sme_sleep_set function

This commit refactors code for hostif_sme_sleep_set function. This
function was using a switch-case block to handle only two states
where the action to do for them is the same. Just refactor a bit
to check for return condition at first and doing the common action
after in other case.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010: remove nonsense break from case block

This commit removes 'break' from case block because the
code is just using the 'default' break for some cases and
this one can be included also there.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010: change return value of ks_wlan_do_power_save function

This commit change return value of ks_wlan_do_power_save function
from int to void. This function is just returning zero and return
value is not being checked also, so it is nonsense to return an
integer.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010: use linux circular buffer header macros to handle tx and rx queues

This commit replace current custom implementation of some circular
buffer head and tail logic in favour of the use of macros defined
in linux circ_buf.h header. Queue related inline function names
have been review also.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010: use msecs_to_jiffies in ks7010_rw_function function

This commit replaces custom time calculations done in ks7010_rw_function
with msecs_to_jiffies() function which has the same behaviour.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010: change sdio related read/write function parameter types

This commit reviews and changes SDIO related read and write
functions parameter types to use the preferred u* kernel types.
Also length parameter which was defined as int has nonsense
because calls to this functions are called useing an unsigned
instead. Because of this length parameters have been changed
also into unsigned int.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010: fix remaining long line warnings in ks7010_sdio source

This commit fixes remaining checkpatch warnings because of
the use of lines longer than 80 characters in ks7010_sdio
source file. After this clean, this file has no remaining
warnings around.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010: remove nonsense comment

This commit removes a comment which has nonsense because
it is obvious what the code does just reading SET_NETDEV_DEV
declaration. This also fixes a checkpatch warning because a
line longer than 80 characters.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010: remove '\' character from michael_block function

This commit removes '\' character from michael_block function.
It seems these two were not removed properly in the following
commit:
 - staging: ks7010: replace MichaelBlockFunction macro with
   inline function (c61cc2cc3be358da10121d119356dfe67fe240f2).

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010: remove nosense #if 1 directive

This commit removes #if 1 directive from code to
improve readability. It is always true, so it makes
no sense to have it there.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010: remove KS_WLAN_MEM_FLAG definition

This commit removes KS_WLAN_MEM_FLAG definition which is
hiding GFP_ATOMIC along the code. It is better to use directly
GFP_ATOMIC in kmalloc's because this it is easier to read.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010: rewrite hif_align_size inline function

This commit rewrites hif_align_size inline function to
improve readability. It also change parameters and return
type from int to size_t which is the correct and the one
which is being used when this function is called from
several points of the code.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010: remove KS_ATOM preprocessor condtional code

This commit removes KS_ATOM preprocessor conditional code from
hif_align_size because it is not defined anywhere.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010: move and rename DEVICE_ALIGNMENT into correct header

This commit moves DEVICE_ALIGNMENT definition into the header ks_hostif.h
which is where it is being used. This is also defined always so just
remove nosense undef definitions also and clean some preprocessor
conditional directives in hif_align_size function.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010: indent enum properly in eap_packet.h header file

This commit indents properly some enumeration values to improve
code readability a bit.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010: change ETHER_HDR_SIZE definition to use the size of struct ether_hdr

This commit changes ETHER_HDR_SIZE definition which is a hardcoded
number using the size of the structure ether_hdr which is the one
for what this definition has been created. This improves readability
and makes clear the intention of this definition along the code.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010: remove two redefined defines in eap_packet.h header

This commit removes GENERIC_INFO_ELEM and RSN_INFO_ELEM definitions
from eap_packet.h header file which are not being used at all.
These two are also defined in the ks_wlan_net.c source file as
GENERIC_INFO_ELEM_ID and RSN_INFO_ELEM_ID with the same values.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010: remove EAPOL_VERSION preprocessor definition

This commit removes EAPOL_VERSION define from eap_packet.h
header file because it is not being used anywhere.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010: remove not used enum values from eap_packet.h header

This commit removes not used at all enum values from eap_packet.h
header file. This values are defined in the kernel ieee80211.h
header and the only one that is being used in ks_wlan_net.c source
which is WLAN_REASON_MIC_FAILURE is being used from this header.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010_sdio: fix NULL pointer dereference and memory leak

priv is being explicitly dereferenced when it is still null, when
jumping to goto label err_free_netdev, before it is properly
updated with a valid memory address.

Also, when this happens, memory allocated for netdev at line 854:
netdev = alloc_etherdev(sizeof(*priv)) is not being free'd before
return, hence there is a memory leak.

The current code looks a bit too complicated and can be replaced
by just directly freeing netdev before return.

Notice that card->priv = NULL isn't required because the next thing
we do to card is kfree(card).

Addresses-Coverity-ID: 1467844 ("Explicit null dereferenced")
Suggested-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010: Replace mdelay with usleep_range in ks7010_upload_firmware

ks7010_upload_firmware() is never called in atomic context.

The call chain ending up at ks7010_upload_firmware() is:
[1] ks7010_upload_firmware() <- ks7010_sdio_probe()

ks7010_sdio_probe() is set as ".probe" in struct sdio_driver.
This function is not called in atomic context.

Despite never getting called from atomic context, ks7010_upload_firmware()
calls mdelay() to busily wait.
This is not necessary and can be replaced with usleep_range() to
avoid busy waiting.

This is found by a static analysis tool named DCNS written by myself.
And I also manually check it.

Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010: replace kmalloc() + memcpy() with kmemdup()

Use kmemdup rather than duplicating its implementation.

Signed-off-by: Ji-Hun Kim <ji_hun.kim@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010: fix some style issues about long lines

This commit just fixes some checkpatch reported issues about
lines longer than 80 characters.

A new blank line has been added also to improve readability.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010: ks7010: factor out firmware copy process into ks7010_copy_firmware

This commit extracts firmware copy process into a new function
ks7010_copy_firmware. Because rom_buf is only needed for this
process, memory request for it has been also moved to this new
function so the error handling label release_host_and_free has
been renamed to release_host into ks7010_upload_firmware original
function.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010: fix error handling in ks7010_upload_firmware

This commit checks missing error code check when checking
if the firmware is running reading General Communication
Register A (GCR_A).

It also set ret to EBUSY if firmware is running before
copying it.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010: factor out initial enqueue process into ks7010_sme_enqueue_events

This commit extract initial enqueue process into a new
ks7010_sme_enqueue_events function.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010: factor out ks_wlan_private init process into ks7010_private_init

This commit extract ks_wlan_private initialization process
into a new function ks7010_private_init to improve a bit
readability.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010: factor out irq setup process to ks7010_sdio_setup_irqs

This commit extract sdio irq setup process into a new
function ks7010_sdio_setup_irqs to improve readability.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010: fix label to jump to in error case

This commit fixs the label to jump to when in case
an error occurs disabling interrupts. At this point
of the code sdio_enable_func() function has been
successfully called.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010: factor out irq enable process to ks7010_sdio_init_irqs

This commit extracts sdio irq enable process to a new function
ks7010_sdio_init_irqs to improve readability.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010: remove unnecessary 'out of memory' message

This commit removes unnecessay out of memory message
fixing the following checkpach.pl warning:
WARNING: Possible unnecessary 'out of memory' message

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010: Remove unnecessary casts in 'struct ks_wlan_handler_def'.

The casts used when initializing members of this data structure mirror
the types the variables already have.  Remove the casts.

Signed-off-by: Quytelda Kahja <quytelda@tamalin.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010: Change 'device_open_status' to a bool.

The 'device_open_status' member of 'struct ks_wlan_private' is only
ever set to zero or one, so it makes more sense for it to be a bool
instead of an int.

Signed-off-by: Quytelda Kahja <quytelda@tamalin.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010: Rename ks_wlan_set_multicast_list()

All of the net_device_ops callbacks are named after their counterparts
in the kernel's 'struct net_device_ops', except
ks_wlan_set_multicast_list().  Rename it to ks_wlan_set_rx_mode() for
greater consistency.

Signed-off-by: Quytelda Kahja <quytelda@tamalin.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010: Remove trailing _t from 'struct michael_mic_t'.

The "_t" suffix is not needed for structure names in this driver, and is a
reflection of an older typedef system that is no longer in place. Replace
all occurences of 'struct michael_mic_t' with 'struct michael_mic'.

Signed-off-by: Quytelda Kahja <quytelda@tamalin.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010: Remove trailing _t from 'struct wps_status_t'.

The "_t" suffix is not needed for structure names in this driver, and is a
reflection of an older typedef system that is no longer in place. Replace
all occurences of 'struct wps_status_t' with 'struct wps_status'.

Signed-off-by: Quytelda Kahja <quytelda@tamalin.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010: Remove trailing _t from 'struct pmk_t'.

The "_t" suffix is not needed for structure names in this driver, and is a
reflection of an older typedef system that is no longer in place. Replace
all occurences of 'struct pmk_t' with 'struct pmk'.

Signed-off-by: Quytelda Kahja <quytelda@tamalin.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010: Remove trailing _t from 'struct pmk_list_t'.

The "_t" suffix is not needed for structure names in this driver, and is a
reflection of an older typedef system that is no longer in place. Replace
all occurences of 'struct pmk_list_t' with 'struct pmk_list'.

Signed-off-by: Quytelda Kahja <quytelda@tamalin.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010: Remove trailing _t from 'struct wpa_status_t'.

The "_t" suffix is not needed for structure names in this driver, and is a
reflection of an older typedef system that is no longer in place. Replace
all occurences of 'struct wpa_status_t' with 'struct wpa_status'.

Signed-off-by: Quytelda Kahja <quytelda@tamalin.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010: Remove trailing _t from 'struct mic_failure_t'.

The "_t" suffix is not needed for structure names in this driver, and is a
reflection of an older typedef system that is no longer in place. Replace
all occurences of 'struct mic_failure_t' with 'struct mic_failure'.

Signed-off-by: Quytelda Kahja <quytelda@tamalin.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010: Remove trailing _t from 'struct wpa_key_t'.

The "_t" suffix is not needed for structure names in this driver, and is a
reflection of an older typedef system that is no longer in place. Replace
all occurences of 'struct wpa_key_t' with 'struct wpa_key'.

Signed-off-by: Quytelda Kahja <quytelda@tamalin.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010: Remove trailing _t from 'struct scan_ext_t'.

The "_t" suffix is not needed for structure names in this driver, and is a
reflection of an older typedef system that is no longer in place. Replace
all occurences of 'struct scan_ext_t' with 'struct scan_ext'.

Signed-off-by: Quytelda Kahja <quytelda@tamalin.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010: Remove trailing _t from 'struct sleep_status_t'.

The "_t" suffix is not needed for structure names in this driver, and is a
reflection of an older typedef system that is no longer in place. Replace
all occurences of 'struct sleep_status_t' with 'struct sleep_status'.

Signed-off-by: Quytelda Kahja <quytelda@tamalin.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010: Remove trailing _t from 'struct power_save_status_t'.

The "_t" suffix is not needed for structure names in this driver, and is a
reflection of an older typedef system that is no longer in place. Replace
all occurences of 'struct power_save_status_t' with 'struct
power_save_status'.

Signed-off-by: Quytelda Kahja <quytelda@tamalin.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010: Remove trailing _t from 'struct local_eeprom_sum_t'.

The "_t" suffix is not needed for structure names in this driver, and is a
reflection of an older typedef system that is no longer in place. Replace
all occurences of 'struct local_eeprom_sum_t' with 'struct
local_eeprom_sum'.

Signed-off-by: Quytelda Kahja <quytelda@tamalin.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010: Remove trailing _t from 'struct local_gain_t'.

The "_t" suffix is not needed for structure names in this driver, and is a
reflection of an older typedef system that is no longer in place. Replace
all occurences of 'struct local_gain_t' with 'struct local_gain'.

Signed-off-by: Quytelda Kahja <quytelda@tamalin.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ks7010: Remove trailing _t from 'struct local_aplist_t'.

The "_t" suffix is not needed for structure names in this driver, and is a
reflection of an older typedef system that is no longer in place. Replace
all occurences of 'struct local_aplist_t' with 'struct local_aplist'.

Signed-off-by: Quytelda Kahja <quytelda@tamalin.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>