Commit Graph

664241 Commits

Author SHA1 Message Date
Tobin C. Harding 07e483c14b staging: ks7010: rename wakeup work struct
struct work_struct uses identifier ks_wlan_wakeup_task, this is
confusing because the 'task' suffix implies that this is a
tasklet_struct instead of a work struct. Suffix 'work' would be more
clear. The code would be easier to read if it followed the principle
of least surprise and used the 'work' suffix for a work_struct
identifier.

Rename work_struct structure 'ks_wlan_wakeup_task' to 'wakeup_work'.

Signed-off-by: Tobin C. Harding <me@tobin.cc>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-18 13:33:17 +02:00
Tobin C. Harding b9ca8bb4e4 staging: ks7010: clean up SDIO header comments
SDIO header file does not use kernel doc format struct
comments. Adding them aids readability and enables documentation to be
built from the source code. Other comments may be tidied up as we do this.

Add kernel format struct comments. Tidy up comments.

Signed-off-by: Tobin C. Harding <me@tobin.cc>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-18 13:33:17 +02:00
Tobin C. Harding 055da4f9b9 staging: ks7010: fix complete_handler
complete_handler() takes void * types as parameters. void * parameters are then
cast to struct types. Call sites for this function either pass in NULL
or pointers to the struct types cast to void *. This casting is
unnecessary and can be removed.

Struct tx_device_buffer (which contains a pointer member to the
complete_handler() function) has as member 'ks_wlan_priv *priv' this is
unnecessary, we always have a pointer to this struct there is no need
to store it here.

The complete_handler can be more clearly defined by using struct
pointer types instead of void * types. The code is currently
unnecessarily complex, storing and passing extraneous pointer
parameters.

Remove unnecessary parameters, unnecessary casting to/from 'void
*'. Fix all call sites involving complete_handler().

Signed-off-by: Tobin C. Harding <me@tobin.cc>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-18 13:33:17 +02:00
Tobin C. Harding 68711cebcb staging: ks7010: replace defines with enum types
Header has multiple constants defined using preprocessor
directive. In the cases where these are an integer progression an
enumeration type can be used. Doing so adds documentation to the code
and makes the usage explicit. Maintain original constant value, this
value is returned by the device.

Replace (integer progression) preprocessor constants with enumeration
type.

Signed-off-by: Tobin C. Harding <me@tobin.cc>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-18 13:33:17 +02:00
Tobin C. Harding bfee6a2319 staging: ks7010: create reg_status_type enum type
SDIO header currently defines unused constants READ_STATUS_BUSY and
WRITE_STATUS_IDLE. There are reciprocal constants that are used
READ_STATUS_IDLE and WRITE_STATUS_BUSY. We can roll these into a
single enumeration type and remove the two that are unused.

Add enumeration type containing IDLE/BUSY pair that are currently used
within the SDIO source. Change source to use new enum types.

Signed-off-by: Tobin C. Harding <me@tobin.cc>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-18 13:33:17 +02:00
Darryl T. Agostinelli 4330887f2e staging: greybus: uart.c: Remove include linux/serial.h
$ make includecheck | grep staging
./drivers/staging/greybus/uart.c: linux/serial.h is included more than once.

Signed-off-by: Darryl T. Agostinelli <dagostinelli@gmail.com>
Reviewed-by: Alex Elder <elder@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-18 13:27:16 +02:00
Darryl T. Agostinelli 6163904e01 staging: greybus: light.c: Remove include linux/version.h
Fixes:
$ make versioncheck | grep staging
./drivers/staging/greybus/light.c: 15 linux/version.h not needed.

Signed-off-by: Darryl T. Agostinelli <dagostinelli@gmail.com>
Reviewed-by: Rui Miguel Silva <rmfrfs@gmail.com>
Reviewed-by: Alex Elder <elder@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-18 13:27:15 +02:00
Skanda Guruanand 54094ee812 staging: lustre: Fix sparse endianness warnings cast to restricted __le64 and __le32
The struct lu_dirpage elements in lustre_idl.h file are modified to
__le64 and __le32 types since the  elements are always converted from
litte endian to processor native format in mdc_request.c file.

Following warnings are removed by this fix.

drivers/staging/lustre/lustre/mdc/mdc_request.c:958:42: warning: cast to restricted __le64
drivers/staging/lustre/lustre/mdc/mdc_request.c:959:42: warning: cast to restricted __le64
drivers/staging/lustre/lustre/mdc/mdc_request.c:962:42: warning: cast to restricted __le64
drivers/staging/lustre/lustre/mdc/mdc_request.c:963:42: warning: cast to restricted __le64
drivers/staging/lustre/lustre/mdc/mdc_request.c:985:50: warning: cast to restricted __le32
drivers/staging/lustre/lustre/mdc/mdc_request.c:1193:24: warning: cast to restricted __le64
drivers/staging/lustre/lustre/mdc/mdc_request.c:1328:25: warning: cast to restricted __le64
drivers/staging/lustre/lustre/mdc/mdc_request.c:1329:23: warning: cast to restricted __le64
drivers/staging/lustre/lustre/mdc/mdc_request.c:1332:25: warning: cast to restricted __le64
drivers/staging/lustre/lustre/mdc/mdc_request.c:1333:23: warning: cast to restricted __le64

Signed-off-by: Skanda Guruanand <skanda.kashyap@gmail.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-18 13:27:15 +02:00
Craig Inches 983ca9b321 Staging: lustre cleanup macros in libcfs_private.h
This resolves a checkpatch warning that "Single statement macros should
not use a do {} while (0) loop" by removing the loop and adjusting line
length accordingly.

Signed-off-by: Craig Inches <Craig@craiginches.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-18 13:27:15 +02:00
Alexandre Bailon 2e2fd6be42 staging: greybus: make cport_quiesce() method optional
The cport_quiesce() method is mandatory in the case of
the es2 Greybus hd controller to shutdown the cports on
the es2 controller.
In order to add support of another controller which may not
need to shutdown its cports, make the cport_quiesce() optional,
and check if the controller implement it before to use it.

Signed-off-by: Alexandre Bailon <abailon@baylibre.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-18 13:27:15 +02:00
Paul Gortmaker 4064771da8 staging/media: make atomisp vlv2_plat_clock explicitly non-modular
The Makefile / Kconfig currently controlling compilation of this code is:

clock/Makefile:obj-$(CONFIG_INTEL_ATOMISP)     += vlv2_plat_clock.o

atomisp/Kconfig:menuconfig INTEL_ATOMISP
atomisp/Kconfig:        bool "Enable support to Intel MIPI camera drivers"

...meaning that it currently is not being built as a module by anyone.

Lets remove the modular code that is essentially orphaned, so that
when reading the driver there is no doubt it is builtin-only.

Since module_init was already not in use by this driver, the init
ordering remains unchanged with this commit.

Also note that MODULE_DEVICE_TABLE is a no-op for non-modular code.

We also delete the MODULE_LICENSE tag etc. since all that information
is already contained at the top of the file in the comments.

Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Alan Cox <alan@linux.intel.com>
Cc: linux-media@vger.kernel.org
Cc: devel@driverdev.osuosl.org
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-18 13:27:15 +02:00
Greg Kroah-Hartman cf3112e910 staging: atomisp: remove odd 'list' file
This removes a strange 'list' file in
drivers/staging/media/atomisp/pci/atomisp2/ that was not being used for
anything.

Cc: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-18 13:20:22 +02:00
Greg Kroah-Hartman e6642ef052 staging: atomisp: fix build breakage from files going away
Previous patches deleted files, but the Makefile still referenced their
.o files.  Fix this up by removing them in the Makefile.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-18 13:19:16 +02:00
Tobin C. Harding 4f22b8954b staging: ks7010: remove unused spin_lock
Driver SDIO private data structure description includes a spin_lock
that is never used. This data structure only contains a pointer to the
sdio_func and a pointer to the main device private data. A spin_lock
is not required here.

Remove unused spin_lock.

Signed-off-by: Tobin C. Harding <me@tobin.cc>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-14 10:22:03 +02:00
Tobin C. Harding d2729c6e94 staging: ks7010: remove unused structure description
Driver SDIO header describes a structure that is never used. It can be
safely removed.

Remove unused structure description.

Signed-off-by: Tobin C. Harding <me@tobin.cc>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-14 10:22:03 +02:00
Tobin C. Harding cf10e78e1b staging: ks7010: remove unused read_buf
Driver SDIO code allocates memory for a buffer that is never used. It
can be safely removed.

Remove unused buffer, including allocation and freeing of memory.

Signed-off-by: Tobin C. Harding <me@tobin.cc>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-14 10:22:03 +02:00
Tobin C. Harding fa125ae482 staging: ks7010: remove unused completion
Driver SDIO code initializes a completion that is never used. It can
be safely removed.

Remove unused completion.

Signed-off-by: Tobin C. Harding <me@tobin.cc>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-14 10:22:03 +02:00
Colin Ian King 2e85ccf13a staging: rtl8723bs: ensure cmd is large enough for %4s scanf format
char array cmd is being scanned in using a %4s scanf format
specifier and so cmd must be an array of 5 chars. Increase size
to 5 chars to ensure we don't have an overflow.

Detected with static analysis by cppcheck:

"(error) Width 4 given in format string (no. 1) is larger than
destination buffer 'cmd[4]', use %3s to prevent overflowing it."

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-14 10:22:03 +02:00
Dan Carpenter 73bd2eaa87 staging: lustre: checking for NULL instead if IS_ERR
lustre_cfg_new() returns error pointers and never NULL.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-14 10:22:03 +02:00
Valerio Genovese 33a2e390c4 staging: media: atomisp: i2c: removed unnecessary white space before comma in memset()
Removed extra space before comma in memset() as a part of
checkpatch.pl fix-up.

Signed-off-by: Valerio Genovese <valerio.click@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-14 10:13:09 +02:00
Arnd Bergmann 8d7cd91da4 staging: atomisp: avoid false-positive maybe-uninitialized warning
In combination with CONFIG_PROFILE_ANNOTATED_BRANCHES=y, the unlikely()
inside of the WARN() macro becomes too complex for gcc to see that
we don't use the output arguments of mt9m114_to_res() are used
correctly:

drivers/staging/media/atomisp/i2c/mt9m114.c: In function 'mt9m114_get_fmt':
drivers/staging/media/atomisp/i2c/mt9m114.c:817:13: error: 'height' may be used uninitialized in this function [-Werror=maybe-uninitialized]
  int width, height;
             ^~~~~~
drivers/staging/media/atomisp/i2c/mt9m114.c: In function 'mt9m114_s_exposure_selection':
drivers/staging/media/atomisp/i2c/mt9m114.c:1179:13: error: 'height' may be used uninitialized in this function [-Werror=maybe-uninitialized]

Without WARN_ON(), there is no problem, so by simply replacing it with
v4l2_err(), the warnings go away. The WARN() output is also not needed
here, as we'd probably catch the problem before even getting here,
and other checks for the same condition already use v4l2_err.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-14 10:11:50 +02:00
Alan Cox 7afe8f84f7 atomisp: remove UDS kernel code
UDS is another layer which actually boils down to some trivial assignments so
remove it so inline the code.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-14 10:10:21 +02:00
Alan Cox fdeb24d4a7 atomisp: remove xnr3_0_5 and xnr3_0_11
These are not used in the driver so can go away.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-14 10:09:39 +02:00
Alan Cox 37fd9c35e6 atomisp: remove fixedbds kernel code
This is a whole pile of code that wraps a single assignment. Remove it and
put the assignment in the caller. Once we have the kernels sorted we should
revisit these and remove all the pointless 1 item structs that go with it.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-14 10:08:32 +02:00
Alan Cox 184f8e0981 atomisp: remove satm kernel
This isn't used so it can go in the bitbucket.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-14 10:07:27 +02:00
Alan Cox d6f2b57159 atomisp: remove contiguous handling
The base hmm MMU code doesn't support contiguous allocations (they BUG), so
remove support from them from the higher levels of the heirarchy.

We still need to unwind all these layers but it turns out that some of the init
order stuff is rather sensitive and the simple cleanup breaks everything

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-14 10:07:27 +02:00
Alan Cox 94853b658a atomisp: remove sh_css_malloc indirections where we can
Where we know the buffer size is reasonably constrained we can just use kmalloc,
and where it will be large vmalloc. This still leaves a pile in the middle.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-14 10:07:27 +02:00
Alan Cox da22013f7d atomisp: remove indirection from sh_css_malloc
We have one hard coded set of behaviour so unpick the indirection and function
pointers. This isn't the whole story. A lot of the callers are known sizes and
use cases so we can switch them directly to kmalloc later on.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-14 10:07:27 +02:00
Alan Cox 83fceac050 atomisp: unwrap the _ex malloc/free functions
We are not using these for debugging or debug logging so remove the defines,
trim and rename the functions.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-14 10:06:26 +02:00
Alan Cox b35530650f atomisp: remove most of the uses of atomisp_kernel_malloc
They can be replaced by kmalloc. There are a few that do need to pick kmalloc
or vmalloc. Those we leave for the moment.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-14 10:06:26 +02:00
Daeseok Youn 5eb328740d staging: atomisp: move mipi_info assignment to next line in __get_asd_from_port()
The line which is initializing mipi_info variable is too long
to read. It would be placed in next line.

Signed-off-by: Daeseok Youn <daeseok.youn@gmail.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-14 10:06:26 +02:00
Daeseok Youn 7eb21a8818 staging: atomisp: replace "&isp->asd[i]" with "asd" in __get_asd_from_port()
The address of isp->asd[i] is already assigned to
local "asd" variable. "&isp->asd[i]" would be replaced with
just "asd".

Signed-off-by: Daeseok Youn <daeseok.youn@gmail.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-14 10:06:26 +02:00
Daeseok Youn 287666dfe8 staging: atomisp: remove enable_isp_irq function and add disable_isp_irq
Enable/Disable ISP irq is switched with "enable" parameter of
enable_isp_irq(). It would be better splited to two such as
enable_isp_irq()/disable_isp_irq().

But the enable_isp_irq() is no use in atomisp_cmd.c file.
So remove the enable_isp_irq() function and add
disable_isp_irq function only.

Signed-off-by: Daeseok Youn <daeseok.youn@gmail.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-14 10:06:26 +02:00
Colin Ian King 31991c8cbf staging/atomisp: fix spelling mistake: "falied" -> "failed"
trivial fix to spelling mistake in dev_err error message

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-14 10:06:18 +02:00
Daeseok Youn 7469cd3c7f staging: atomisp: use local variable to reduce number of references
Define new local variable to reduce the number of reference.
The new local variable is added to save the addess of dfs
and used in atomisp_freq_scaling() function.

Signed-off-by: Daeseok Youn <daeseok.youn@gmail.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-14 10:06:18 +02:00
Tobin C. Harding d317d054b1 staging: ks7010: move check and break to top of loop
Function uses an if statement within a for loop to guard a block of
code. If 'if' statement conditional evaluates to false, loop breaks. The
same logic can be expressed by inverting the conditional and breaking
when new conditional evaluates to true. This allows the subsequent code
to be indented one level less, aiding readability. Reduced indentation
also allows for the code to be laid out more clearly and fixes two
checkpatch warnings.

Invert if statement conditional, break from for loop if new
conditional evaluates to true. Reduce indentation in subsequent code,
fix whitespace issues. Do not change program logic.

Signed-off-by: Tobin C. Harding <me@tobin.cc>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-11 16:14:33 +02:00
Tobin C. Harding eb8c4e5469 staging: ks7010: remove multi-way decision
Function uses multi-way decision for control flow. Final statement of
function is spin_unlock(). Code can be simplified by adding a goto label
labelling the call to spin_unlock() and jumping to label instead of
using multi-way decision. This allows the code to be indented one
level less which adds to the readability.

Add goto label. Remove multi-way decision by jumping to label. Reduce
indentation in subsequent code. Do not change program logic.

Signed-off-by: Tobin C. Harding <me@tobin.cc>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-11 16:14:33 +02:00
Tobin C. Harding 1e0aa795da staging: ks7010: remove unused macro
Macro CHECK_ALINE is defined and never used.

Remove unused macro.

Signed-off-by: Tobin C. Harding <me@tobin.cc>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-11 16:14:33 +02:00
Tobin C. Harding 4906be2486 staging: ks7010: fix checkpatch MULTILINE_DEREFERENCE
Checkpatch emits WARNING: Avoid multiple line dereference.

Fix up layout of function call, move dereference to single line.

Signed-off-by: Tobin C. Harding <me@tobin.cc>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-11 16:14:33 +02:00
Tobin C. Harding 331454f438 staging: ks7010: fix checkpatch LOGICAL_CONTINUATIONS
Checkpatch emits multiple CHECK: Logical continuations should be on the
previous line.

Move logical continuations to the end of the previous line.

Signed-off-by: Tobin C. Harding <me@tobin.cc>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-11 16:14:33 +02:00
Tobin C. Harding 78037ef122 staging: ks7010: rename identifier packet to skb
Kernel networking code predominately uses the identifier 'skb' for a struct
sk_buff pointer. Of 8088 instances of 'struct sk_buff *' within
net/ 6670 are named 'skb'. Following the principle of least surprise,
new networking code should use the identifier 'skb' for variables of
type 'struct sk_buff *'.

Rename identifier 'packet' to 'skb'.

Signed-off-by: Tobin C. Harding <me@tobin.cc>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-11 16:14:33 +02:00
Tobin C. Harding dd85d7120f staging: ks7010: add task to TODO file
Driver uses custom Michael MIC implementation. There is already an
implementation within the kernel. There is at least one other driver
already using the kernel implementation
(drivers/net/wireless/intersil/orinoco).

Add task to TODO file.

Signed-off-by: Tobin C. Harding <me@tobin.cc>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-11 16:05:51 +02:00
Tobin C. Harding 37ab542e9a staging: ks7010: rename RecvMIC to recv_mic
Identifier uses camel case, standard kernel style does not use camel
case.

Rename buffer 'RecvMIC' to 'recv_mic'.

Signed-off-by: Tobin C. Harding <me@tobin.cc>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-11 16:05:50 +02:00
Tobin C. Harding ba9328768b staging: ks7010: fix checkpatch UNNECESSARY_ELSE
Checkpatch emits WARNING: else is not generally useful after a break
or return. Two warnings of this type are emitted for this code block,
in both cases 'else' statements are unnecessary.

Remove unnecessary 'else' statements, reduce indentation in subsequent
code.

Signed-off-by: Tobin C. Harding <me@tobin.cc>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-11 16:05:50 +02:00
Tobin C. Harding 8f0ef774b8 staging: ks7010: fix checkpatch PARENTHESIS_ALIGNMENT
Checkpatch emits CHECK: Alignment should match open parenthesis.

Align argument to open parenthesis.

Signed-off-by: Tobin C. Harding <me@tobin.cc>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-11 16:05:50 +02:00
Tobin C. Harding 3da1b2371e staging: ks7010: utilize local variable
Function contains a local pointer variable defined to a memory location
within a structure. This memory location is later used by
dereferencing the struct instead of using the local pointer. The code
is cleaner if all references of the same memory location use the
local variable.

Utilize existing local pointer variable instead of dereferencing
struct.

Signed-off-by: Tobin C. Harding <me@tobin.cc>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-11 16:05:50 +02:00
Tobin C. Harding b121d84882 staging: ks7010: simplify calls to memcpy()
Function uses overly complex calls to memcpy(). Code may be simplified
by the use of a local variable. Code sometimes uses explicit address
of initial array element and sometimes does not. Uniformity aids
readability. If array pointers are explicit it aids readability further.

Simplify calls to memcpy(). Add local pointer variable, define it to
the correct memory location. Use newly defined variable in calls to
memcpy(). Be uniform in use of explicit address of first element of
array (&foo[0]).

Signed-off-by: Tobin C. Harding <me@tobin.cc>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-11 16:05:50 +02:00
Tobin C. Harding 9ff19a6e35 staging: ks7010: move null check before dereference
Function parameter is cast to a local pointer which is then
dereferenced before it is checked to be non-NULL.

Move pointer null check to be before the pointer is dereferenced.

Signed-off-by: Tobin C. Harding <me@tobin.cc>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-11 16:05:50 +02:00
Tobin C. Harding dc59ef2af2 staging: ks7010: fix multi-way decision
Multi-way decision contains two anomalies.

Firstly, a local variable is defined to be the inverse truth variable
of a struct member. This local variable is used as the conditional to
the multi-way decision. This is unnecessary, the same logic can be
expressed using the struct member directly.

Secondly, there are four branches in the multi-way decision, two of
which can never be executed. This is dead code.

Remove unnecessary local variable. Remove two branches of multi-way
decision statement that can never be executed.

Signed-off-by: Tobin C. Harding <me@tobin.cc>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-11 16:05:50 +02:00
Tobin C. Harding 2ab6fd5963 staging: ks7010: factor out send stop request
Function contains compound statement delineated by lone braces. This
statement represents a discreet set of functionality and thus can be
factored out into a separate function. Using a separate function
instead of a compound statement increases readability, reduces code
indentation, reduces function length, and generally looks more tidy.

Factor compound statement out to separate function.

Signed-off-by: Tobin C. Harding <me@tobin.cc>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-11 16:03:36 +02:00