The "translate_scan" function in rtl8712 uses a lot of stack, and
gets inlined into its single caller, r8711_wx_get_scan, which
in some configurations now blows the 1024 byte stack warning
limit:

drivers/staging/rtl8712/rtl871x_ioctl_linux.c: In function 'r8711_wx_get_scan':
drivers/staging/rtl8712/rtl871x_ioctl_linux.c:1227:1: error: the frame size of 1032 bytes is larger than 1024 bytes [-Werror=frame-larger-than=]

This somewhat reduces the stack usage by moving the translate_scan
function out of line with the noinline_for_stack annotation.
It might be possible to modify translate_scan() a little further
to reduce the stack usage, but with this patch, we can build without
the warning, the the call chain to get here is rather predictable
(sys_ioctl->vfs_ioctl->sock_ioctl->dev_ioctl->wext_ioctl->
r8711_wx_get_scan).
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Acked-by: NLarry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Fix a driver hang caused by earlier suspend/resume cycles. By handling a
ENODEV error during suspend as a real error we eventually end up stopping
the whole driver.

Fix this by handling the ENODEV error (during suspend) essentially by
retrying.
Signed-off-by: NHemmo Nieminen <hemmo.nieminen@iki.fi>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Declare rtl871x_intf_resume() function static since it is defined and called
in this file only.

This fixes the following sparse warning:
warning: symbol 'rtl871x_intf_resume' was not declared. Should it be static?
Signed-off-by: NAmitoj Kaur Chawla <amitoj1606@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Remove unnecessary else when there is a return statement in the
corresponding if block. Coccinelle patch used:

@rule1@
expression e1;
@@

	if (e1) { ... return ...; }
-       else{
	        ...
-       }

@rule2@
expression e2;
statement s1;
@@

	if(e2) { ... return ...; }
-       else
               s1
Signed-off-by: NJanani Ravichandran <janani.rvchndrn@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

For platform_driver, we don't need to set .owner field as is set by
platform driver core. The semantic patch used here first checks whether
platform_driver struct was actually used in a call to set the .owner
field.
The coccinelle script that generated the patch can be found here:
http://www.spinics.net/lists/kernel/msg2029903.htmlSigned-off-by: NBhumika Goyal <bhumirks@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

This patch fixes "blank lines aren't necessary after an open brace '{'"
checkpatch.pl warning in ethernet.c
Signed-off-by: NDilek Uzulmez <dilekuzulmez@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

We have only one NAPI poll running at a time, so virtual port rx counters
can be updated normally.

Update of rx_dropped can still race with the gathering of statistics,
but full accuracy is not required there.
Signed-off-by: NAaro Koskinen <aaro.koskinen@iki.fi>
Acked-by: NDavid Daney <david.daney@cavium.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Make driver name to match the file name.
Signed-off-by: NAaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Add spaces around operator to improve readability.
Signed-off-by: NAaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Switch to use kernel types:

	uint64_t -> u64
	uint32_t -> u32
	uint16_t -> u16
	uint8_t  -> u8
	int8_t   -> s8
Signed-off-by: NAaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Clean up includes.
Signed-off-by: NAaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Delete space after cast.
Signed-off-by: NAaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Some if branches are missing braces as required by coding style.
Signed-off-by: NAaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Delete redundant blank lines.
Signed-off-by: NAaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Removed initialisation of a varible if it is immediately reassigned.

Changes were made using Coccinelle.

@@
type T;
constant C;
expression e;
identifier i;
@@
T i
- = C
;
i = e;
Signed-off-by: NBhaktipriya Shridhar <bhaktipriya96@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

In this file, the values returned by rtllib_priv() are unnecessarily cast
into a pointer type in some assignment statements. Remove the cast as it
is unneeded.
Signed-off-by: NJanani Ravichandran <janani.rvchndrn@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

With cmwq, use of dedicated workqueues can be replaced by system_wq.
Removed the dedicated workqueue and used system_wq instead.

Since the work items in the workqueues do not need to
be ordered, increase of concurrency by switching to system_wq should
not break anything.

All work items are sync canceled so it is guaranteed that no work is
running when driver is detached.
Signed-off-by: NBhaktipriya Shridhar <bhaktipriya96@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Replace long if-else block with switch-case to make it more readable and
compact.
Signed-off-by: NBhumika Goyal <bhumirks@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Add the required leading * on subsequent lines as well as
move the */ on a separate line. Checkpatch found this issue.
Signed-off-by: NAnchal Jain <anchalj109@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

This patch removes braces for single statement blocks. The warning
was detected using checkpatch.pl.
Coccinelle was used to make the change.

@@
expression e,e1;
@@

- if (e) {
+ if (e)
  e1;
- }
Signed-off-by: NBhaktipriya Shridhar <bhaktipriya96@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

RTL8188EE has a maximum of 2 RF paths (chains) so paths C and D are not
needed to support this part.
Signed-off-by: NAndrew Bradford <andrew@bradfordembedded.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Jump a new line after and operator of the test. It avoids to exceed 80
chars line, and remove a checkpatch warning.
Signed-off-by: NColin Vidal <colin@cvidal.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Remove a checkpatch warning, putting constant operant on right of two tests.
Signed-off-by: NColin Vidal <colin@cvidal.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

And a space after include keyword, making the preprocessor more
readable, and remove an unexpected space between a type and variable
name.
Signed-off-by: NColin Vidal <colin@cvidal.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

As FSF address changed in the past, and can change in the future,
remove the address paragraph in the comment header, and avoid a warning
of checkpatch.
Signed-off-by: NColin Vidal <colin@cvidal.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Introduce the use of function put_unaligned_le16.
This is done using the following Coccinelle semantic patch:

//<smpl>
@@ identifier tmp; expression ptr; expression y,e; type T; @@

- tmp = cpu_to_le16(y);

  <+... when != tmp
- memcpy(ptr, (T)&tmp, ...);
+ put_unaligned_le16(y,ptr);
  ...+>
? tmp = e

@@ type T; identifier tmp; @@

- T tmp;
...when != tmp
//</smpl>

Corresponding header file has been added too.
Signed-off-by: NAmitoj Kaur Chawla <amitoj1606@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

The function vfree tests whether the argument is NULL and returns
immediately. So NULL test is not needed before vfree. Also remove blank
line between function calls.
Signed-off-by: NBhumika Goyal <bhumirks@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

The function vfree tests whether the argument is NULL and returns
immediately. So NULL test before vfree is not needed. Also remove braces
around if branch as they are no longer needed.
Signed-off-by: NBhumika Goyal <bhumirks@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

The macro ARRAY_SIZE is more concise to use instead of dividing
size of the array by the size of its type.

Changes were made using Coccinelle.

@@
type T;
T[] E;
@@

- (sizeof(E)/sizeof(T))
+ ARRAY_SIZE(E)
Signed-off-by: NBhaktipriya Shridhar <bhaktipriya96@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Remove unnecessary else when there is a return statement in the
corresponding if block.
Coccinelle patch used:

@rule1@
expression e1;
@@

	if (e1) { ... return ...; }
-       else{
	        ...
-            }

@rule2@
expression e2;
statement s1;
@@

	if(e2) { ... return ...; }
-       else
		s1
Signed-off-by: NJanani Ravichandran <janani.rvchndrn@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

This patch cleans whitespaces and blank lines involved with
previous two patchs in this patch set.
Signed-off-by: NGeliang Tang <geliangtang@163.com>
Acked-by: NJes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

There are some useless codes in rtw_free_recvframe23a_queue() and
recvframe_defrag(), so remove them.
Signed-off-by: NGeliang Tang <geliangtang@163.com>
Acked-by: NJes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Use list_for_each_entry*() instead of list_for_each*() to simplify
the code.
Signed-off-by: NGeliang Tang <geliangtang@163.com>
Acked-by: NJes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

The macros PlatformProcessHCICommands and PlatformTxBTQueuedPackets
are not used anywhere in the kernel so remove them.
Signed-off-by: NBhumika Goyal <bhumirks@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

With concurrency managed workqueues, use of dedicated workqueues can
be replaced by using system_wq. Drop schedule_usb_work by using
system_wq.

Since there is only one work item per buf_anchor and most_dev and they
do not need to be ordered, increase of concurrency by switching to
system_wq should not break anything.

Both work items are sync canceled before the driver can be
unregistered, to ensure no work item is pending or executing on any
CPU by the time exit path is in flight.
Signed-off-by: NAmitoj Kaur Chawla <amitoj1606@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Replace pr_err with dev_err when a appropriate device structure is
present.
Signed-off-by: NAmitoj Kaur Chawla <amitoj1606@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Devm_ functions allocate memory that is released when a driver
detaches. Replace request_irq with devm_request_irq to get the
interrupt for device which is automatically freed on exit. Remove
corresponding free_irq from probe and remove functions of a platform
device.

Also, remove an unnecessary label.
Signed-off-by: NAmitoj Kaur Chawla <amitoj1606@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Devm_ functions allocate memory that is released when a driver
detaches. Replace request_mem_region and ioremap with
devm_ioremap_resource and remove corresponding freeing functions
release_mem_region and iounmap from probe and remove functions of a
platform device.

Also, an unnecessary platform_set_drvdata() has been removed since the
driver core clears the driver data to NULL after device release or on
probe failure. There is no need to manually clear the device driver
data to NULL.

Lastly, unnecessary labels have been removed.
Signed-off-by: NAmitoj Kaur Chawla <amitoj1606@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Devm_ functions allocate memory that is released when a driver detaches.
Replace kzalloc with devm_kzalloc and remove corresponding
kfrees from probe and remove functions of a platform
device.

Also, an unnecessary label has been removed.
Signed-off-by: NAmitoj Kaur Chawla <amitoj1606@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Return a ZERO_SIZE_PTR in the xlr_config_spill function if the
kmalloc returns an invalid value. This change prevents a possible
segmentation fault as the invalid pointer is fed into PTR_ALIGN macro.
Signed-off-by: NLaura Garcia Liebana <nevola@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>