Elise Lennion [Wed, 26 Oct 2016 02:03:43 +0000 (00:03 -0200)]
staging: sm750fb: Refine the code and remove unused code.
Every call to the function waitNextVerticalSync() used the macro
primaryWaitVerticalSync(), so the macro was removed and the function
waitNextVerticalSync() renamed to primary_wait_vertical_sync().
With this change, an unnecessary 'if' statement was removed together
with the lines within the 'else' statement, because it was never
satisfied.
The modified function was refined to better match the Kernel coding
style.
Ioana Ciornei [Wed, 26 Oct 2016 16:20:34 +0000 (11:20 -0500)]
staging: fsl-mc: uprev binary interface to match MC v10.x
DPAA2 will not support MC firmware versions prior to MC v10.x.
Update the MC interface code and drivers to reflect this.
-update the object .h files and code that builds commands to include
the new command version in the command header
-object versions are no longer available in the object attributes,
so remove references to them and instead get the version from the
new get_api_version() command
-create/destroy commands for all objects have new arguments
-dpmng_get_container_id() is replaced by dprc_get_container_id()
This supports a hardware ABI change and thus to match the new ABI
all the above changes need to happen in a single patch.
All MC firmware versions >= 10 will be supported going forward.
Ioana Ciornei [Wed, 26 Oct 2016 16:20:27 +0000 (11:20 -0500)]
staging: fsl-mc: whitespace cleanup: improve alignment in prototypes
To improve readability for structs and function definitions, separate type
and variable name by a single space, instead of an inconsistent number of
tabs.
Stuart Yoder [Wed, 26 Oct 2016 16:20:23 +0000 (11:20 -0500)]
staging: fsl-mc: update MAINTAINERS
-German has moved on to other things and wished to be
removed as a maintainer
-cleanup the driver description to use the proper name
of the driver (i.e. the fsl-mc bus driver) and remove incorrect
references to Freescale
Signed-off-by: Stuart Yoder <stuart.yoder@nxp.com> Acked-by: J. German Rivera <German.Rivera@freescale.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Andrey Shvetsov [Tue, 25 Oct 2016 15:44:20 +0000 (17:44 +0200)]
staging: most: hdm-usb: do h/w specific synchronization at configuration time
This patch puts the synchronization procedure trigger for asynchronous
channels into the function hdm_configure_channel. Likewise, it removes
triggering of hardware specific synchronization for other channel types
from the probe function as it is not required.
Andrey Shvetsov [Tue, 25 Oct 2016 15:44:19 +0000 (17:44 +0200)]
staging: most: aim-networking: keep channels closed if ndo_open fails
This patch stops all started channels whenever the function most_nd_open
returns an error. Additionally, it renames variable wait_res to ret for
the consistency.
Arnd Bergmann [Mon, 24 Oct 2016 15:22:01 +0000 (17:22 +0200)]
staging: iio: ad5933: avoid uninitialized variable in error case
The ad5933_i2c_read function returns an error code to indicate
whether it could read data or not. However ad5933_work() ignores
this return code and just accesses the data unconditionally,
which gets detected by gcc as a possible bug:
drivers/staging/iio/impedance-analyzer/ad5933.c: In function 'ad5933_work':
drivers/staging/iio/impedance-analyzer/ad5933.c:649:16: warning: 'status' may be used uninitialized in this function [-Wmaybe-uninitialized]
This adds minimal error handling so we only evaluate the
data if it was correctly read.
Cathal Mullaney [Wed, 19 Oct 2016 21:43:25 +0000 (22:43 +0100)]
staging: unisys: visorbus: visorchannel: Refactor locking code to be statically deterministic.
This patch makes locking in visorchannel_signalempty statically
deterministic.
As a result this patch fixes the sparse warning:
Context imbalance in 'visorchannel_signalempty' - different lock
contexts for basic block.
The logic of the locking code doesn't change but the layout of the
original code is "frowned upon"
according to mails on sparse context checking.
Refactoring removes the warning and makes the code more readable.
Wei Yongjun [Mon, 17 Oct 2016 15:05:36 +0000 (15:05 +0000)]
staging: bcm2708_vchiq: fix return value check in vchiq_init_state()
In case of error, the function kthread_create() returns ERR_PTR() and
never returns NULL. The NULL test in the return value check should be
replaced with IS_ERR().
Wei Yongjun [Mon, 17 Oct 2016 15:06:07 +0000 (15:06 +0000)]
staging: bcm2708_vchiq: fix return value check in vchiq_platform_conn_state_changed()
In case of error, the function kthread_create() returns ERR_PTR() and
never returns NULL. The NULL test in the return value check should be
replaced with IS_ERR().
Eric Anholt [Mon, 17 Oct 2016 19:44:05 +0000 (12:44 -0700)]
staging/vchi: Add a TODO file of things I know we need to deal with.
I've left out the downstream HDMI audio driver from the "to be
imported" section, as we'll want to handle it natively in vc4. The
downstream kernel will likely continue to use that driver for a while
due to using the interim "vc4 firmware KMS" mode while vc4 gets its
featureset (such as HDMI audio!) completed.
I've also left out VC-CMA, which appears to be about having Linux
manage a CMA area that the firmware gets to make allocations out of.
I'm not clear on if this is useful (the firmware's need for memory
drops massively with vc4 present, and may drop even more depending on
how we resolve dmabuf handling for camera and video decode)
Signed-off-by: Eric Anholt <eric@anholt.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Arnd Bergmann [Mon, 17 Oct 2016 22:08:56 +0000 (00:08 +0200)]
staging: lustre: remove broken dead code in cfs_cpt_table_create_pattern
After a recent bugfix, we get a warning about the use of an uninitialized
variable:
drivers/staging/lustre/lnet/libcfs/linux/linux-cpu.c: In function 'cfs_cpt_table_create_pattern':
drivers/staging/lustre/lnet/libcfs/linux/linux-cpu.c:833:7: error: 'str' may be used uninitialized in this function [-Werror=maybe-uninitialized]
This part of the function used to not do anything as we would reassign
the 'str' pointer to something else right away, but now we pass an
uninitialized pointer into 'strchr', which can cause a kernel page fault
or worse.
Fixes: 239fd5d41f9b ("staging: lustre: libcfs: shortcut to create CPT from NUMA topology") Cc: Liang Zhen <liang.zhen@intel.com> Cc: James Simmons <jsimmons@infradead.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Arnd Bergmann [Mon, 17 Oct 2016 22:42:27 +0000 (00:42 +0200)]
staging: lustre: restore initialization of return code
A recent rework dropped the initialization of the initialization of the
successful return code in lov_getstripe:
drivers/staging/lustre/lustre/lov/lov_pack.c: In function 'lov_getstripe':
drivers/staging/lustre/lustre/lov/lov_pack.c:426:9: error: 'rc' may be used uninitialized in this function [-Werror=maybe-uninitialized]
drivers/staging/lustre/lustre/lov/lov_pack.c:313:6: note: 'rc' was declared here
Javier Martinez Canillas [Mon, 17 Oct 2016 19:21:21 +0000 (16:21 -0300)]
staging: fbtft: Fix module autoload
If the driver is built as a module, autoload won't work because the module
alias information is not filled. So user-space can't match the registered
device with the corresponding module.
Export the module alias information using the MODULE_DEVICE_TABLE() macro.
Before this patch:
$ modinfo drivers/staging/fbtft/flexfb.ko | grep alias
$
After this patch:
$ modinfo drivers/staging/fbtft/flexfb.ko | grep alias
alias: platform:flexpfb
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Stuart Yoder [Mon, 17 Oct 2016 18:43:01 +0000 (13:43 -0500)]
staging: fsl-mc: dprc: shorten DPRC interrupt name
improve readibility of the DPRC interrupt name in sysfs by
shortening this and just using the device name. There is only
one interrupt DPRC used, so no further differentiation is needed.
Signed-off-by: Stuart Yoder <stuart.yoder@nxp.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Stuart Yoder [Mon, 17 Oct 2016 18:42:53 +0000 (13:42 -0500)]
staging: fsl-mc: irq: shorten name of interrupt name
For /proc/interrupts readability, platform bus MSIs are named
"ITS-pMSI" in the GIC ITS implementation for that bus. Follow
a similar naming convention and call fsl-mc bus MSIs
"ITS-fMSI".
Signed-off-by: Stuart Yoder <stuart.yoder@nxp.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Stuart Yoder [Mon, 17 Oct 2016 18:42:40 +0000 (13:42 -0500)]
staging: fsl-mc: update Kconfig dependency
The Kconfig dependency previously included ARM64, which is not
strictly correct. Change it to ARCH_LAYERSCAPE which is the
SoC platform that includes the DPAA2 hardware.
Signed-off-by: Stuart Yoder <stuart.yoder@nxp.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Stuart Yoder [Mon, 17 Oct 2016 18:42:34 +0000 (13:42 -0500)]
staging: fsl-mc: clean up Kconfig description
Except for copyrights we are avoiding all references
to Freescale, which no longer exists as a brand. Cleanup
Freescale references and simplify the Kconfig description
of the fsl-mc bus.
Signed-off-by: Stuart Yoder <stuart.yoder@nxp.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Stuart Yoder [Mon, 17 Oct 2016 18:42:28 +0000 (13:42 -0500)]
staging: fsl-mc: add missing includes to fsl-mc-private.h
fsl-mc-private.h references several definitions that it does not explicitly
have includes for. Up until now we've gotten lucky due to include ordering
that things compile. Add the missing includes.
Signed-off-by: Stuart Yoder <stuart.yoder@nxp.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The rtllib_rx_extract_addr() is supposed to set up the mac addresses
for four possible cases, based on two bits of input data. For
some reason, gcc decides that it's possible that none of the these
four cases apply and the addresses remain uninitialized:
drivers/staging/rtl8192e/rtllib_rx.c: In function ‘rtllib_rx_InfraAdhoc’:
include/linux/etherdevice.h:316:61: error: ‘*((void *)&dst+4)’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
drivers/staging/rtl8192e/rtllib_rx.c:1318:5: note: ‘*((void *)&dst+4)’ was declared here
ded from /git/arm-soc/drivers/staging/rtl8192e/rtllib_rx.c:40:0:
include/linux/etherdevice.h:316:36: error: ‘dst’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
drivers/staging/rtl8192e/rtllib_rx.c:1318:5: note: ‘dst’ was declared here
This warning is clearly nonsense, but changing the last case into
'default' makes it obvious to the compiler too, which avoids the
warning and probably leads to better object code too.
As the same warning appears in other files that have the exact
same code, I'm fixing it in both rtl8192e and rtl8192u, even
though I did not observe it for the latter.
Pankaj Bharadiya [Mon, 17 Oct 2016 10:47:07 +0000 (16:17 +0530)]
staging: dgnc: Remove some redundant functions
dgnc_tty_preinit() and dgnc_tty_post_uninit() functions are used to
allocate and free "dgnc_TmpWriteBuf" and this "dgnc_TmpWriteBuf" is
not really getting used. Hence remove these redundant functions.
Also remove dgnc_TmpWriteBuf variable as it is not used anymore.
Pankaj Bharadiya [Mon, 17 Oct 2016 09:12:36 +0000 (14:42 +0530)]
staging: greybus: audio: remove redundant slot field
gb_audio_manager_module_descriptor's intf_id field maintains the
information about the interface on which module is connected hence
having an extra slot field is redundant.
Thus remove the slot field and its associated code.
Michael Zoran [Wed, 19 Oct 2016 22:58:54 +0000 (15:58 -0700)]
staging: vc04_services: Add casts to remove warnings in vchiq_core.c
When compiling vchiq_core.c for 64 bit, the compiler
emits a few warnings that are not actual issues. This
change adds a few casts to remove the extra unnecessary
warnings.
Signed-off-by: Michael Zoran <mzoran@crowfest.net> Reviewed-by: Eric Anholt <eric@anholt.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Michael Zoran [Wed, 19 Oct 2016 22:58:48 +0000 (15:58 -0700)]
staging: vc04_services: Handle conversion from VCHIQ_SERVICE_HANDLE_T to VCHI_SERVICE_HANDLE_T
A VCHIQ_SERVICE_HANDLE_T which is an int is stuffed into a
VCHI_SERVICE_HANDLE_T which is a pointer, passed around, then
converted back to a VCHIQ_SERVICE_HANDLE_T. Since the data is
always actually a VCHIQ_SERVICE_HANDLE_T(int), never actually a
pointer, it is safe to simply cast the two back in forth.
Note that pointers are never stuffed into an int.
Signed-off-by: Michael Zoran <mzoran@crowfest.net> Reviewed-by: Eric Anholt <eric@anholt.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Michael Zoran [Wed, 19 Oct 2016 22:58:34 +0000 (15:58 -0700)]
staging: vc04_services: Convert pointers in shared state to offsets
The arm processor core and the GPU have a shared data structure.
This structure contains pointers to base linux kernel objects such as
events. The size of the pointer changes between 32 bit and 64 bit,
so it is necessary to convert these pointers to offsets from the
beginning of the state structure.
Luckly, the GPU does not interpret these pointers/offsets,
but this change is necessary to keep the structure the same since
the GPU code is outside the scope of the linux kernel
and can't be easily changed.
Signed-off-by: Michael Zoran <mzoran@crowfest.net> Reviewed-by: Eric Anholt <eric@anholt.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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