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519693 commits

Author SHA1 Message Date
Alexander Usyskin c241e9b1d9 mei: reset flow control on the last client disconnection
The FW resets the flow control for single buffer clients when the last
host client disconnects, also the driver has to follow this policy and
zero the flow control counter in such case.

Cc: <stable@vger.kernel.org> #4.1
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-13 19:48:02 -07:00
Tomas Winkler 5069288bd4 MAINTAINERS: mei: add mei_cl_bus.h to maintained file list
mei_cl_bus.h was overlooked when we added the mei bus

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-13 14:24:44 -07:00
Vladimir Zapolskiy 98ce2d27a3 misc: sram: sort and clean up included headers
Most of the included header files are already included as
dependencies.

Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:03:57 -07:00
Vladimir Zapolskiy a0a5be0b36 misc: sram: move reserved block logic out of probe function
No functional change, but now previously overloaded sram_probe() is
greatly simplified and perceptible, reserved regions logic also has
its own space.

Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:03:56 -07:00
Vladimir Zapolskiy 665d82fbbc misc: sram: add private struct device and virt_base members
No functional change, this is a preceding change to simplify
separation of reserved partition handling logic from probe()
function.

Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:03:56 -07:00
Vladimir Zapolskiy 4914f1c717 misc: sram: report correct SRAM pool size
Since some space in SRAM may be reserved, report the left free space
in the allocated memory pool instead of total physical size of the
SRAM device.

Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:03:56 -07:00
Vladimir Zapolskiy d687b1fa67 misc: sram: bump error message level on unclean driver unbinding
Report an error level message to a user, if the driver is unbound
while there are still some pool allocations.

Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:03:56 -07:00
Vladimir Zapolskiy b13365bbec misc: sram: fix device node reference leak on error
A pointer device node reference should be decremented on manual exit
from for_each_available_child_of_node() loop.

Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:03:56 -07:00
Vladimir Zapolskiy ee895ccdf7 misc: sram: fix enabled clock leak on error path
If devm_gen_pool_create() fails, the previously enabled sram->clk is
not disabled on probe() exit.

Because reserved block logic relies only on information from device tree,
there is no need to get and enable device clock in advance, especially
because not provided clock is not considered as an error, so it is
safe to place devm_clk_get() at the end of probe(). No functional
change.

Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:03:56 -07:00
Sudeep Dutt 0a3405d35c misc: mic: Fix reported static checker warning
Delete unnecessary prints resulting in an "spdev could be null"
warning from a static checker in scif_peer_remove(..).

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Signed-off-by: Sudeep Dutt <sudeep.dutt@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:01:43 -07:00
Sudeep Dutt 24732e7ee9 misc: mic: Fix randconfig build error by including errno.h
This issue was reported @ https://lkml.org/lkml/2015/6/9/731

Reported-by: Jim Davis <jim.epost@gmail.com>
Reviewed-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Signed-off-by: Sudeep Dutt <sudeep.dutt@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:01:43 -07:00
Matwey V. Kornilov e040c4d97a uio: pruss: Drop depends on ARCH_DAVINCI_DA850 from config
mach-dependant stuff has been removed by
    2eb2478d47 ("uio: uio_pruss: replace private SRAM API with genalloc")

There is no need to keep
    depends on ARCH_DAVINCI_DA850

Signed-off-by: Matwey V. Kornilov <matwey@sai.msu.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:01:43 -07:00
Matwey V. Kornilov b42df9c262 uio: pruss: Add CONFIG_HAS_IOMEM dependence
uio_pruss uses io memory, that should be explicitly depend on it

Signed-off-by: Matwey V. Kornilov <matwey@sai.msu.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:01:43 -07:00
Matwey V. Kornilov 8767267602 uio: pruss: Include <linux/sizes.h>
uio_pruss references SZ_16K and SZ_256K defines, but linux/sizes.h is not included.

Signed-off-by: Matwey V. Kornilov <matwey@sai.msu.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:01:43 -07:00
Chanwoo Choi 73b6ecdb93 extcon: Redefine the unique id of supported external connectors without 'enum extcon' type
This patch just redefine the unique id of supported external connectors without
'enum extcon' type. Because unique id would be used on devictree file(*.dts) to
indicate the specific external connectors like key number of input framework.
So, I have the plan to move this definitions to following header file which
includes the unique id of supported external connectors.
- include/dt-bindings/extcon/extcon.h

Fixes: 2a9de9c0f0 ("extcon: Use the unique id for external connector instead of string")
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:01:42 -07:00
Shailendra Verma 03cb050301 char:xilinx_hwicap:buffer_icap - change 1/0 to true/false for bool type variable in function buffer_icap_set_configuration().
The variable dirty is bool type. Hence assign the variable with
bool value true/false instead of 1/0.

Signed-off-by: Shailendra Verma <shailendra.capricorn@gmail.com>
Tested-by: Michal Simek <michal.simek@xilinx.com>
Acked-by: Moritz Fischer <moritz.fischer@ettus.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 16:58:33 -07:00
K. Y. Srinivasan 294409d205 Drivers: hv: vmbus: Allocate ring buffer memory in NUMA aware fashion
Allocate ring buffer memory from the NUMA node assigned to the channel.
Since this is a performance and not a correctness issue, if the node specific
allocation were to fail, fall back and allocate without specifying the node.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 16:58:33 -07:00
Sudip Mukherjee 50566ac870 parport: check exclusive access before register
As of now we were starting the registration process and after the device
is registered we were checking if the device can be used by the
parport. Now lets check it first so that we do not need to go through
the registration process only to fail at the end.
The original exclusive access check at the end is still there so that we
do not get any surprises if two different process registers its device
with same parport and with exclusive access at the same time.

Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 16:58:33 -07:00
Dan Carpenter 0c6d5c89a1 w1: use correct lock on error in w1_seq_show()
I noticed there was a problem here because Smatch complained:

	drivers/w1/slaves/w1_therm.c:416 w1_seq_show() warn:
	inconsistent returns 'mutex:&sl->master->mutex'.
	  Locked on:   line 416
	  Unlocked on: line 413

The problem is that we lock ->mutex but we unlock ->bus_mutex on error.
David Fries says that ->bus_mutex is correct and ->mutex is incorrect.

Fixes: d9411e57dc ('w1: Add support for DS28EA00 sequence to w1-therm')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 16:58:33 -07:00
Dan Carpenter a14ef24b07 w1: fix for loop exit condition in w1_seq_show()
The W1_42_FINISHED_BYTE is 0xFF so the cast means the condition is
never true.

Fixes: d9411e57dc ('w1: Add support for DS28EA00 sequence to w1-therm')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 16:58:33 -07:00
Paul Gortmaker fc368ea1ea drivers/hwtracing: fix coresight-etm4x implicit <module.h> usage
In commit 2e1cdfe184 ("coresight-etm4x:
Adding CoreSight ETM4x driver") this driver was added.

It uses module_amba_driver() to register itself with the system,
which is just an alias for module_driver.  This currently works by
relying on getting that via init.h but we are planning to move that
code[1] to module.h -- at which time this will fail to compile since
it does not include module.h currently, resulting in:

drivers/hwtracing/coresight/coresight-etm4x.c:2701:1: note: in expansion of macro ‘module_amba_driver’
 module_amba_driver(etm4x_driver);
 ^
include/linux/device.h:1296:1: error: type defaults to ‘int’ in declaration of ‘module_init’ [-Werror=implicit-int]
 module_init(__driver##_init); \
 ^

In the future, the amba support may want to create another alias that
uses builtin_driver[2] for cases like this which are using bool Kconfig
triggers, but for now we just fix the implicit include.

[1] https://lkml.kernel.org/r/1433276168-21550-1-git-send-email-paul.gortmaker@windriver.com
[2] https://lkml.kernel.org/r/1431287385-1526-1-git-send-email-paul.gortmaker@windriver.com

Cc: Pratik Patel <pratikp@codeaurora.org>
Cc: Kaixu Xia <xiakaixu@huawei.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Acked-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-08 13:46:43 -07:00
Paul Gortmaker 5a6a7cd05c drivers/hwtracing: fix coresight-replicator-qcom implicit <module.h> usage
In commit 620cf787c1 ("coresight: replicator:
Add Qualcomm CoreSight Replicator driver") this driver was added.

It uses module_amba_driver(replicator_driver) to register itself with
the system -- which is just an alias for module_driver.  This currently
works by relying on getting that via init.h but we are planning to move
that code[1] to module.h -- at which time this will fail to compile since
it does not include module.h currently, resulting in:

drivers/hwtracing/coresight/coresight-replicator-qcom.c:214:1: error: type defaults to 'int' in declaration of 'module_init' [-Werror=implicit-int]
drivers/hwtracing/coresight/coresight-replicator-qcom.c:214:1: error: type defaults to 'int' in declaration of 'module_exit' [-Werror=implicit-int]

In the future, the amba support may want to create another alias that
uses builtin_driver[2] for cases like this which are using bool Kconfig
triggers, but for now we just fix the implicit include.

[1] https://lkml.kernel.org/r/1433276168-21550-1-git-send-email-paul.gortmaker@windriver.com
[2] https://lkml.kernel.org/r/1431287385-1526-1-git-send-email-paul.gortmaker@windriver.com

Cc: Pratik Patel <pratikp@codeaurora.org>
Cc: Ivan T. Ivanov <ivan.ivanov@linaro.org>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Acked-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-08 13:46:43 -07:00
Greg Kroah-Hartman 00465f4c84 Update extcon for v4.2
This patchset include the huge update of extcon core and add the new one extcon
 driver and fix minor isseu of extcon drivers.
 
 Detailed description for patchset:
 1. Update the extcon core.
 - Modify the extcon device name on sysfs from device name name to 'extcon[X]'
 as following because if same extcon device are included in H/W development board,
 the one of the two device driver might be failed on the probe().
 : /sys/class/extcon/[device name] -> /sys/class/extcon/extcon[X]
 
 - Use the unique id for external connectors instead of legacy string name.
 Previously, extcon used the string name to identify the type of external
 connectors. This way have the many potential issues. So, extcon core define the
 unique id for each external connectors as following:
 
 	enum extcon {
 		EXTCON_NONE             = 0x0,
 
 		/* USB external connector */
 		EXTCON_USB              = 0x1,
 		EXTCON_USB_HOST		= 0x2,
 
 		/* Charger external connector */
 		EXTCON_TA		= 0x10,
 		EXTCON_FAST_CHARGER	= 0x11,
 		EXTCON_SLOW_CHARGER	= 0x12,
 		EXTCON_CHARGE_DOWNSTREAM = 0x13,
 
 		/* Audio and video external connector */
 		EXTCON_LINE_IN		= 0x20,
 		EXTCON_LINE_OUT		= 0x21,
 		EXTCON_MICROPHONE	= 0x22,
 		EXTCON_HEADPHONE	= 0x23,
 		...
 	};
 
 - Update tye prototype of extcon_register_notifier() by using the unique id
 (enum extcon) of external connectors.
 
 - Add extcon_get_edev_name() API to get the name of extcon device on extcon
 client driver because the name is included in 'struct extcon_dev' and 'struct
 extcon_dev' should be handled in only drivers/extcon directory. So. if extcon
 client need the name of extcon device, they could use this function.
 
 - Unify the jig/dock and MHL-TA cable name on extcon driver.
 : JIG-{USB-ON|USB-OFF|UART-ON|UART-OFF} -> JIG
 : Dock-{Smart|Desk|Audio|Card} -> DOCK
 : MHL-TA -> TA
 
 - Use the capital letter for the name of all external connectors.
 - Remove the optional print_name() function pointer from struct extcon_dev to
 maintain the consistent name of extcon device.
 
 2. Add the new extcon-axp288.c extcon driver.
 - The extcon-axp288.c driver support for AXP288 PMIC which has the BC1.2
 charger detection capability. So this extcon driver can detect the
 EXTCON_SLOW_CHARGER, EXTCON_CHARGE_DOWNSTREAM and EXTCON_FAST_CHARGER.
 
 3. Update the extcon-arizona.c driver.
 - Add support for selective detection mode when headphone detection.
 - Apply HP clamps for WM8280
 
 4. Clean-up the extcon core and drivers.
 - Add manufactor information of each extcon device.
 - Fix checkpatch warning and minor coding style on extcon.c.c
 - Fix build break if GPIOLIB is not enabled on extcon-usb-gpiio.c.
 - Set the direction of gpio when calling devm_gpiod_get() on extcon-usb-gpio.c
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Merge tag 'extcon-next-for-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/extcon into char-misc-next

Chanwoo writes:

Update extcon for v4.2

This patchset include the huge update of extcon core and add the new one extcon
driver and fix minor isseu of extcon drivers.

Detailed description for patchset:
1. Update the extcon core.
- Modify the extcon device name on sysfs from device name name to 'extcon[X]'
as following because if same extcon device are included in H/W development board,
the one of the two device driver might be failed on the probe().
: /sys/class/extcon/[device name] -> /sys/class/extcon/extcon[X]

- Use the unique id for external connectors instead of legacy string name.
Previously, extcon used the string name to identify the type of external
connectors. This way have the many potential issues. So, extcon core define the
unique id for each external connectors as following:

	enum extcon {
		EXTCON_NONE             = 0x0,

		/* USB external connector */
		EXTCON_USB              = 0x1,
		EXTCON_USB_HOST		= 0x2,

		/* Charger external connector */
		EXTCON_TA		= 0x10,
		EXTCON_FAST_CHARGER	= 0x11,
		EXTCON_SLOW_CHARGER	= 0x12,
		EXTCON_CHARGE_DOWNSTREAM = 0x13,

		/* Audio and video external connector */
		EXTCON_LINE_IN		= 0x20,
		EXTCON_LINE_OUT		= 0x21,
		EXTCON_MICROPHONE	= 0x22,
		EXTCON_HEADPHONE	= 0x23,
		...
	};

- Update tye prototype of extcon_register_notifier() by using the unique id
(enum extcon) of external connectors.

- Add extcon_get_edev_name() API to get the name of extcon device on extcon
client driver because the name is included in 'struct extcon_dev' and 'struct
extcon_dev' should be handled in only drivers/extcon directory. So. if extcon
client need the name of extcon device, they could use this function.

- Unify the jig/dock and MHL-TA cable name on extcon driver.
: JIG-{USB-ON|USB-OFF|UART-ON|UART-OFF} -> JIG
: Dock-{Smart|Desk|Audio|Card} -> DOCK
: MHL-TA -> TA

- Use the capital letter for the name of all external connectors.
- Remove the optional print_name() function pointer from struct extcon_dev to
maintain the consistent name of extcon device.

2. Add the new extcon-axp288.c extcon driver.
- The extcon-axp288.c driver support for AXP288 PMIC which has the BC1.2
charger detection capability. So this extcon driver can detect the
EXTCON_SLOW_CHARGER, EXTCON_CHARGE_DOWNSTREAM and EXTCON_FAST_CHARGER.

3. Update the extcon-arizona.c driver.
- Add support for selective detection mode when headphone detection.
- Apply HP clamps for WM8280

4. Clean-up the extcon core and drivers.
- Add manufactor information of each extcon device.
- Fix checkpatch warning and minor coding style on extcon.c.c
- Fix build break if GPIOLIB is not enabled on extcon-usb-gpiio.c.
- Set the direction of gpio when calling devm_gpiod_get() on extcon-usb-gpio.c
2015-06-03 14:09:12 +09:00
K. Y. Srinivasan 1f656ff3fd Drivers: hv: vmbus: Implement NUMA aware CPU affinity for channels
Channels/sub-channels can be affinitized to VCPUs in the guest. Implement
this affinity in a way that is NUMA aware. The current protocol distributed
the primary channels uniformly across all available CPUs. The new protocol
is NUMA aware: primary channels are distributed across the available NUMA
nodes while the sub-channels within a primary channel are distributed amongst
CPUs within the NUMA node assigned to the primary channel.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-01 10:56:31 +09:00
K. Y. Srinivasan 9c6e64adf2 Drivers: hv: vmbus: Use the vp_index map even for channels bound to CPU 0
Map target_cpu to target_vcpu using the mapping table.
We should use the mapping table to transform guest CPU ID to VP Index
as is done for the non-performance critical channels.
While the value CPU 0 is special and will
map to VP index 0, it is good to be consistent.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-01 10:56:31 +09:00
Ludek Hlavacek 0dcacd768e w1: ds2482: Add i2c module alias name
Add i2c alias to enable autoloading of the module for device specified
in device-tree.

Signed-off-by: Ludek Hlavacek <ludek_h@seznam.cz>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-01 10:29:50 +09:00
Nicholas Mc Guire fdd2db290d snsc: pass timeout as HZ independent value
schedule_timeout takes a timeout in jiffies but the code currently is
passing in a constant SCDRV_TIMEOUT which makes this timeout HZ
dependent, so pass it through msecs_to_jiffies() to fix this up.

patch was compile tested with generic_defconfig (implies CONFIG_SGI_SNSC=y)

Patch is against 4.0-rc5 (localversion-next is -next-20150527)

Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-01 10:29:50 +09:00
Lee Campbell 0e4a566b9e MAINTAINERS: Fix typo in Android drivers git path
Fix typo in staging git location for the ANDROID DRIVERS
secion.

Signed-off-by: Lee Campbell <leecam@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-01 10:29:50 +09:00
Sudip Mukherjee 64dfff038c MAINTAINERS: maintain parport
Lets give the parport subsystem a proper name and start
maintaining the files.

Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-01 10:10:49 +09:00
Sudip Mukherjee 9f4ba6b058 paride: use new parport device model
Modify paride driver to use the new parallel port device model.

Tested-by: Alan Cox <gnomes@lxorguk.ukuu.org.uk>
Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-01 07:10:23 +09:00
Sudip Mukherjee 8891f41a78 i2c-parport: use new parport device model
Modify i2c-parport driver to use the new parallel port device model.

Tested-by: Jean Delvare <jdelvare@suse.de>
Acked-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-01 07:10:23 +09:00
Sudip Mukherjee 19a4fb21f8 i2c-parport: define ports to connect
As of now i2c-parport was connecting to all the available parallel
ports. Lets limit that to maximum of 4 instances and at the same time
define which instance connects to which parallel port.

Tested-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Acked-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-01 07:08:19 +09:00
Sudip Mukherjee 9be83c0a44 staging: panel: use new parport device model
Converted to use the new device-model parallel port.

Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-01 07:08:19 +09:00
Sudip Mukherjee 6fa45a2268 parport: add device-model to parport subsystem
parport subsystem starts using the device-model. Drivers using the
device-model has to define devmodel as true and should register the
device with parport using parport_register_dev_model().

Tested-by: Jean Delvare <jdelvare@suse.de>
Tested-by: Alan Cox <gnomes@lxorguk.ukuu.org.uk>
Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-01 07:08:18 +09:00
Shailendra Verma 208250dd4c char:pcmcia:synclink_cs - Do not initialise statics to 0.
Static variables are initialised to 0 by GCC.
Fixes the following checkpatch error:
ERROR: do not initialise statics to 0 or NULL
FILE: drivers/char/pcmcia/synclink_cs.c:440:
static bool break_on_load = 0;

Signed-off-by: Shailendra Verma <shailendra.capricorn@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-01 06:38:21 +09:00
Vitaly Kuznetsov 4e4bd36f97 Drivers: hv: balloon: check if ha_region_mutex was acquired in MEM_CANCEL_ONLINE case
Memory notifiers are being executed in a sequential order and when one of
them fails returning something different from NOTIFY_OK the remainder of
the notification chain is not being executed. When a memory block is being
onlined in online_pages() we do memory_notify(MEM_GOING_ONLINE, ) and if
one of the notifiers in the chain fails we end up doing
memory_notify(MEM_CANCEL_ONLINE, ) so it is possible for a notifier to see
MEM_CANCEL_ONLINE without seeing the corresponding MEM_GOING_ONLINE event.
E.g. when CONFIG_KASAN is enabled the kasan_mem_notifier() is being used
to prevent memory hotplug, it returns NOTIFY_BAD for all MEM_GOING_ONLINE
events. As kasan_mem_notifier() comes before the hv_memory_notifier() in
the notification chain we don't see the MEM_GOING_ONLINE event and we do
not take the ha_region_mutex. We, however, see the MEM_CANCEL_ONLINE event
and unconditionally try to release the lock, the following is observed:

[  110.850927] =====================================
[  110.850927] [ BUG: bad unlock balance detected! ]
[  110.850927] 4.1.0-rc3_bugxxxxxxx_test_xxxx #595 Not tainted
[  110.850927] -------------------------------------
[  110.850927] systemd-udevd/920 is trying to release lock
(&dm_device.ha_region_mutex) at:
[  110.850927] [<ffffffff81acda0e>] mutex_unlock+0xe/0x10
[  110.850927] but there are no more locks to release!

At the same time we can have the ha_region_mutex taken when we get the
MEM_CANCEL_ONLINE event in case one of the memory notifiers after the
hv_memory_notifier() in the notification chain failed so we need to add
the mutex_is_locked() check. In case of MEM_ONLINE we are always supposed
to have the mutex locked.

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-01 06:38:21 +09:00
Keith Mange 6c4e5f9c9f Drivers: hv: vmbus:Update preferred vmbus protocol version to windows 10.
Add support for Windows 10.

Signed-off-by: Keith Mange <keith.mange@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-01 06:38:21 +09:00
Vladimir Zapolskiy b575f7124a char: misc: restore MISC_DYNAMIC_MINOR on device_create() failure
On attempt to register a dynamic minor misc device its minor number is
updated to a virtual minor number prior to device_create() call,
however on error path misc->minor == MISC_DYNAMIC_MINOR is not
restored.

Following the rule of thumb that a function returning an error must
not change the state of the caller, assign MISC_DYNAMIC_MINOR back.

The problem is met in a sutuation, when subsys_initcall(misc_init) is
not yet called and misc_class is not created, but misc_register()
modifies statically defined ".minor = MISC_DYNAMIC_MINOR", therefore
implicitly changing the client's logic on next attempt (e.g. retrying
from deferred list) to register a misc device, whose minor number is
converted from dynamic to some unknown static one.

Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-01 06:38:21 +09:00
Greg Kroah-Hartman b144ce2d37 mei: fix up uuid matching
A previous commit, c93b76b34b ("mei: bus: report also uuid in module
alias") caused a build error as I missed applying a needed patch to add
some macros to uapi/linux/uuid.h.  Instead of those additional macros,
change the mei code to use the existing uuid structure directly.

Fixes: c93b76b34b
Cc: Tomas Winkler <tomas.winkler@intel.com>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-05-31 12:14:00 +09:00
Chanwoo Choi f8df880811 extcon: Remove optional print_name() function pointer of extcon_dev
This patch removes the optional print_name() function pointer included in
'struct extcon_dev' because the extcon must maintain the consistent name of
extcon device on sysfs instead of inconsistent name. After merged patch[1],
extcon can maintain the consistent name of extcon device without any hard-coded
device name.
[1] https://lkml.org/lkml/2015/4/27/258

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2015-05-29 19:56:11 +09:00
Pali Rohár 039ae58503 hwmon: Allow to compile dell-smm-hwmon driver without /proc/i8k
This patch splits CONFIG_I8K compile option to SENSORS_DELL_SMM and CONFIG_I8K.
Option SENSORS_DELL_SMM is now used to enable compilation of dell-smm-hwmon
driver and old CONFIG_I8K option to enable /proc/i8k interface in driver.

So this change allows to compile dell-smm-hwmon driver without legacy /proc/i8k
interface which is needed only for old Dell Inspirion models or for userspace
i8kutils package.

For backward compatibility when CONFIG_I8K is enabled then also SENSORS_DELL_SMM
is enabled and so driver dell-smm-hwmon (with /proc/i8k) is compiled.

Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-05-24 12:48:12 -07:00
Pali Rohár a5afba16c6 hwmon: Rename i8k driver to dell-smm-hwmon and move it to hwmon tree
This commit moves i8k driver to hwmon tree under name dell-smm-hwmon which is
better name then abbreviation i8k. For backward compatibility is added macro
MODULE_ALIAS("i8k") so modprobe will load driver also old name i8k. CONFIG_I8K
compile option was not changed.

This commit also adds me as maintainer of this new dell-smm-hwmon driver and
remove Guenter Roeck from list who is implicit maintainer all hwmon drivers.

Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-05-24 12:48:12 -07:00
Dan Carpenter db1700685c virtio_console: silence a static checker warning
My static checker complains that this sprintf() can overflow but really
it can't.  Just silence the warning by using snprintf().

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-05-24 12:24:35 -07:00
Geert Uytterhoeven 45c554ece9 xillybus: XILLYBUS_OF should depend on HAS_DMA
If NO_DMA=y:

    drivers/built-in.o: In function `xilly_of_unmap':
    xillybus_of.c:(.text+0xa860e): undefined reference to `dma_unmap_single'
    drivers/built-in.o: In function `xilly_map_single_of':
    xillybus_of.c:(.text+0xa8668): undefined reference to `dma_map_single'
    xillybus_of.c:(.text+0xa8676): undefined reference to `dma_mapping_error'
    xillybus_of.c:(.text+0xa86ca): undefined reference to `dma_unmap_single'
    drivers/built-in.o: In function `xilly_dma_sync_single_for_device_of':
    xillybus_of.c:(.text+0xa8700): undefined reference to `dma_sync_single_for_cpu'
    drivers/built-in.o: In function `xilly_dma_sync_single_for_cpu_of':
    xillybus_of.c:(.text+0xa8726): undefined reference to `dma_sync_single_for_cpu'

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Eli Billauer <eli.billauer@gmail.com>
--
v2:
  - Add Acked-by, send to char and misc drivers maintainers.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-05-24 12:24:35 -07:00
Joe Perches 3411d035eb goldfish_pipe: Fix unlikely() misuse
Move the close parenthesis.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-05-24 12:24:35 -07:00
Dmitry Eremin-Solenikov d3046ba809 pcmcia: fix a boot time warning in pcmcia cs code
During bootup pcmcia (pccardd) code enforces the following warning
backtrace:

do not call blocking ops when !TASK_RUNNING; state=1 set at [<c0319e74>] pccardd+0xb8/0x3fc
Modules linked in:
CPU: 0 PID: 14 Comm: pccardd Not tainted 4.0.0-rc6+ #11
Hardware name: Sharp-Collie
[<c0105cd8>] (unwind_backtrace) from [<c0103ef8>] (show_stack+0x10/0x14)
[<c0103ef8>] (show_stack) from [<c010e9b8>] (warn_slowpath_common+0x74/0xac)
[<c010e9b8>] (warn_slowpath_common) from [<c010ea20>] (warn_slowpath_fmt+0x30/0x40)
[<c010ea20>] (warn_slowpath_fmt) from [<c012b1b4>] (__might_sleep+0x84/0xa0)
[<c012b1b4>] (__might_sleep) from [<c040fbb0>] (mutex_lock_nested+0x24/0x388)
[<c040fbb0>] (mutex_lock_nested) from [<c0319eb4>] (pccardd+0xf8/0x3fc)
[<c0319eb4>] (pccardd) from [<c0127370>] (kthread+0xdc/0xfc)
[<c0127370>] (kthread) from [<c01013a8>] (ret_from_fork+0x14/0x2c)
---[ end trace fd94911637eed4ba ]---

This happens due to kthread trying to lock mutex in a TASK_INTERRUPTIBLE
state. Limit TASK_INTERRUPTIBLE task state to the schedule() call only,
so that the rest of the code runs in TASK_RUNNING state.

Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-05-24 12:24:35 -07:00
Alan 7879b1d94b um,ethertap: use strncpy
[um maintainers appear to be vanished]

I can't prove the case pointed out in
https://bugzilla.kernel.org/show_bug.cgi?id=82341
is correct so let us play safe.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-05-24 12:24:35 -07:00
Stephen Boyd f0c7b47466 drivers/char: Remove msm_smd_pkt driver
This code is no longer used now that mach-msm has been removed.
Delete it.

Cc: David Brown <davidb@codeaurora.org>
Cc: Bryan Huntsman <bryanh@codeaurora.org>
Cc: Daniel Walker <dwalker@fifo99.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-05-24 12:24:35 -07:00
Vitaly Kuznetsov ce59fec836 Drivers: hv: vmbus: distribute subchannels among all vcpus
Primary channels are distributed evenly across all vcpus we have. When the host
asks us to create subchannels it usually makes us num_cpus-1 offers and we are
supposed to distribute the work evenly among the channel itself and all its
subchannels. Make sure they are all assigned to different vcpus.

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-05-24 12:19:00 -07:00
Vitaly Kuznetsov f38e7dd723 Drivers: hv: vmbus: move init_vp_index() call to vmbus_process_offer()
We need to call init_vp_index() after we added the channel to the appropriate
list (global or subchannel) to be able to use this information when assigning
the channel to the particular vcpu. To do so we need to move a couple of
functions around. The only real change is the init_vp_index() call. This is a
small refactoring without a functional change.

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-05-24 12:19:00 -07:00