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560,571 commits

Author SHA1 Message Date
Sakari Ailus
234bc0d667 iommu: Make the iova library a module
The iova library has use outside the intel-iommu driver, thus make it a
module.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-04 12:46:06 +01:00
Sakari Ailus
11e33955b9 iommu: iova: Export symbols
Use EXPORT_SYMBOL_GPL() to export the iova library symbols. The symbols
include:

	init_iova_domain();
	iova_cache_get();
	iova_cache_put();
	iova_cache_init();
	alloc_iova();
	find_iova();
	__free_iova();
	free_iova();
	put_iova_domain();
	reserve_iova();
	copy_reserved_iova();

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-04 12:46:06 +01:00
Sakari Ailus
09e8b485ee iommu: iova: Move iova cache management to the iova library
This is necessary to separate intel-iommu from the iova library.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-04 12:46:06 +01:00
Sebastian Ott
19f7767e29 misc/genwqe: get rid of atomic allocations
we received reports of failed allocations in genwqe code:

[  733.550955] genwqe_gzip: page allocation failure: order:1, mode:0x20
[  733.550964] CPU: 2 PID: 1846 Comm: genwqe_gzip Not tainted 4.3.0-rc3-00042-g3225031 #78
[  733.550968]        000000002782b830 000000002782b8c0 0000000000000002 0000000000000000
       000000002782b960 000000002782b8d8 000000002782b8d8 00000000001134a0
       0000000000000000 0000000000892b2a 0000000000871d0a 000000000000000b
       000000002782b920 000000002782b8c0 0000000000000000 0000000000000000
       0000000000000000 00000000001134a0 000000002782b8c0 000000002782b920
[  733.551003] Call Trace:
[  733.551013] ([<0000000000113388>] show_trace+0xf8/0x158)
[  733.551018]  [<0000000000113452>] show_stack+0x6a/0xe8
[  733.551024]  [<00000000004611d4>] dump_stack+0x7c/0xd8
[  733.551031]  [<000000000024dc22>] warn_alloc_failed+0xda/0x150
[  733.551036]  [<000000000025268e>] __alloc_pages_nodemask+0x94e/0xbc0
[  733.551041]  [<000000000012bcd8>] s390_dma_alloc+0x70/0x1a0
[  733.551054]  [<000003ff804d8e8c>] __genwqe_alloc_consistent+0x84/0xd0 [genwqe_card]
[  733.551063]  [<000003ff804d90c2>] genwqe_alloc_sync_sgl+0x13a/0x328 [genwqe_card]
[  733.551066]  [<000003ff804d41a0>] do_execute_ddcb+0x1f8/0x388 [genwqe_card]
[  733.551069]  [<000003ff804d48c8>] genwqe_ioctl+0x598/0xd50 [genwqe_card]
[  733.551072]  [<00000000002cc90c>] do_vfs_ioctl+0x3f4/0x590
[  733.551074]  [<00000000002ccb46>] SyS_ioctl+0x9e/0xb0
[  733.551078]  [<00000000006c8166>] system_call+0xd6/0x258
[  733.551080]  [<000003fffd25819a>] 0x3fffd25819a
[  733.551082] no locks held by genwqe_gzip/1846.

This specific allocation and some others in genwqe are unnecessary flagged
as atomic.

All of genwqe's atomic allocations happen in a context where it's allowed
to sleep. Change these to use GFP_KERNEL.

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Acked-by: Frank Haverkamp <haver@linux.vnet.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-04 12:42:33 +01:00
Masanari Iida
6b1eb14502 misc: hpilo: Change e-mail address from hp.com to hpe.com
This patch changes maintainer's email address from
hp.com to hpe.com in hpilo.c.

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Acked-by: David Altobelli <david.altobelli@hpe.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-04 12:42:33 +01:00
Masanari Iida
7a56f329c7 misc: hpilo: Add min and max value of module parameter in description
This patch add minimum and maximum value of module parameter
max_ccb in hpilo.c.

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-04 12:42:33 +01:00
Michal Hocko
edce5e6f33 uio: fix false positive __might_sleep warning splat
Andy has reported a __might_sleep warning
[ 5174.883617] WARNING: CPU: 0 PID: 1532 at
/home/agrover/git/kernel/kernel/sched/core.c:7389 __might_sleep+0x7d/0x90()
[ 5174.884407] do not call blocking ops when !TASK_RUNNING; state=1 set at [<ffffffffa02a5821>] uio_read+0x91/0x170 [uio]
[ 5174.885198] Modules linked in: tcm_loop target_core_user uio target_core_pscsi target_core_file target_core_iblock iscsi_target_mod  target_core_mod uinput fuse nfsv3 nfs_acl nfs lockd grace fscache sunrpc microcode i2c_piix4 virtio_balloon i2c_core xfs libcrc32c crc32c_intel  virtio_net virtio_blk
[ 5174.887351] CPU: 0 PID: 1532 Comm: tcmu-runner Not tainted 4.2.0-rc7+
[ 5174.887853] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996),
BIOS 1.8.1-20150318_183358- 04/01/2014
[ 5174.888633]  ffffffff81a3b870 ffff880045393ca8 ffffffff817afaae
0000000000000000
[ 5174.889224]  ffff880045393cf8 ffff880045393ce8 ffffffff8109a846
ffff880045393cd8
[ 5174.889793]  ffffffffa02a7150 00000000000002dc 0000000000000000
ffff880045008000
[ 5174.890375] Call Trace:
[ 5174.890562]  [<ffffffff817afaae>] dump_stack+0x4c/0x65
[ 5174.890938]  [<ffffffff8109a846>] warn_slowpath_common+0x86/0xc0
[ 5174.891388]  [<ffffffff8109a8c6>] warn_slowpath_fmt+0x46/0x50
[ 5174.891808]  [<ffffffffa02a5821>] ? uio_read+0x91/0x170 [uio]
[ 5174.892237]  [<ffffffffa02a5821>] ? uio_read+0x91/0x170 [uio]
[ 5174.892653]  [<ffffffff810c584d>] __might_sleep+0x7d/0x90
[ 5174.893055]  [<ffffffff811ea023>] __might_fault+0x43/0xa0
[ 5174.893448]  [<ffffffff817b31ce>] ? schedule+0x3e/0x90
[ 5174.893820]  [<ffffffffa02a58c2>] uio_read+0x132/0x170 [uio]
[ 5174.894240]  [<ffffffff810cbb80>] ? wake_up_q+0x70/0x70
[ 5174.894620]  [<ffffffff81236168>] __vfs_read+0x28/0xe0
[ 5174.894993]  [<ffffffff81353233>] ? security_file_permission+0xa3/0xc0
[ 5174.895541]  [<ffffffff8123678f>] ? rw_verify_area+0x4f/0xf0
[ 5174.896006]  [<ffffffff812368ba>] vfs_read+0x8a/0x140
[ 5174.896391]  [<ffffffff817b28f5>] ? __schedule+0x425/0xcc0
[ 5174.896788]  [<ffffffff812375d9>] SyS_read+0x49/0xb0

The warning is a false positive because uio_read doesn't depent on
TASK_INTERRUPTIBLE after copy_to_user so it is safe to silence the
warning by an explicit setting the state to TASK_RUNNING in the path
which might call into TASK_RUNNING.

Reported-by: Andy Grover <agrover@redhat.com>
Signed-off-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-04 12:32:25 +01:00
Luis de Bethencourt
0049ef9c8d uio: uio_fsl_elbc_gpcm: Fix module autoload for OF platform driver
This platform driver has a OF device ID table but the OF module
alias information is not created so module autoloading won't work.

Signed-off-by: Luis de Bethencourt <luis@debethencourt.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-04 12:32:25 +01:00
Alexander Usyskin
84dfe03ae2 mei: hbm: fix error in state check logic
Use || instead && in state check.
The latter is bogus and leads to following warning:

drivers/misc/mei/hbm.c:1212:46: warning: logical ‘and’ of mutually exclusive tests is always false [-Wlogical-op]

Fixes: 70ef835c84 ("mei: support for dynamic clients")
Reported-by: David Binderman <dcb314@hotmail.com>
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>
2015-10-04 12:19:23 +01:00
Maxime Ripard
fb727077b0 nvmem: sunxi: Check for memory allocation failure
The sunxi_sid driver doesn't check for kmalloc return status before
derefencing the returned pointer, which could lead to a NULL pointer
dereference if kmalloc failed. Check for its return code to make sure it
deosn't happen.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-04 12:09:43 +01:00
Axel Lin
ace2217065 nvmem: core: Fix memory leak in nvmem_cell_write
A tmp buffer is allocated if cell->bit_offset || cell->nbits.
So the tmp buffer needs to be freed at the same condition to avoid leak.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-04 12:09:43 +01:00
Axel Lin
cbf854ab36 nvmem: core: Handle shift bits in-place if cell->nbits is non-zero
It's pointless to test (cell->bit_offset || cell->bit_offset).
nvmem_shift_read_buffer_in_place() should be called when
(cell->bit_offset || cell->nbits).

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-04 12:09:43 +01:00
ZhengShunQian
7c806883e1 nvmem: core: fix the out-of-range leak in read/write()
The position to read/write must be less than max
register size.

Signed-off-by: ZhengShunQian <zhengsq@rock-chips.com>
Acked-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-04 12:09:43 +01:00
kbuild test robot
7e532f7925 nvmem: rockchip_efuse_regmap_config can be static
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Acked-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-04 12:08:14 +01:00
ZhengShunQian
03a69568e0 nvmem: Adding bindings for rockchip-efuse
There are some SoC specified values store in eFuse,
such as the cpu_leakage and cpu_version,
this driver can expose these values to /sys base on nvmem.

Signed-off-by: Caesar Wang <caesar.wang@rock-chips.com>
Signed-off-by: ZhengShunQian <zhengsq@rock-chips.com>
Acked-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-04 12:08:14 +01:00
ZhengShunQian
faf25a9089 nvmem: rockchip-efuse: describe the usage of eFuse
This patch add the bindings document of rockchip eFuse driver.

Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Cc: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: ZhengShunQian <zhengsq@rock-chips.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-04 12:06:13 +01:00
Stefan Wahren
c01e9a11ab nvmem: add driver for ocotp in i.MX23 and i.MX28
This patch brings read-only support for the On-Chip OTP cells
in the i.MX23 and i.MX28 processor. The driver implements the
new NVMEM provider API.

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-04 12:06:13 +01:00
Stefan Wahren
fb86de91c2 nvmem: add binding for mxs-ocotp
This patch adds the devicetree bindings for the Freescale MXS On Chip
OTP driver.

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-04 12:06:13 +01:00
Philipp Zabel
3edba6b47e nvmem: imx-ocotp: Add i.MX6 OCOTP driver
This driver handles the i.MX On-Chip OTP Controller found in
i.MX6Q/D, i.MX6S/DL, i.MX6SL, and i.MX6SX SoCs. Currently it
just returns the values stored in the shadow registers.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-04 12:06:13 +01:00
Philipp Zabel
5380a9a6ac nvmem: Add i.MX6 OCOTP device tree binding documentation
This patch documents the i.MX6 OCOTP device tree binding.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-04 12:06:13 +01:00
Sanchayan Maity
22dbdb7cbf nvmem: Add Vybrid OCOTP support
The patch adds support for the On Chip One Time Programmable Peripheral
(OCOTP) on the Vybrid platform.

Signed-off-by: Sanchayan Maity <maitysanchayan@gmail.com>
Acked-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-04 12:06:13 +01:00
Sanchayan Maity
6230699469 nvmem: Add DT binding documentation for Vybrid OCOTP driver
Add the devicetree bindings for the Freescale Vybrid On-Chip
OTP driver.

Signed-off-by: Sanchayan Maity <maitysanchayan@gmail.com>
Acked-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-04 12:06:13 +01:00
Linus Torvalds
15ecf9a986 Assorted fixes for md in 4.3-rc
Two tagged for -stable
 One is really a cleanup to match and improve kmemcache interface.
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Merge tag 'md/4.3-fixes' of git://neil.brown.name/md

Pull md fixes from Neil Brown:
 "Assorted fixes for md in 4.3-rc.

  Two tagged for -stable, and one is really a cleanup to match and
  improve kmemcache interface.

* tag 'md/4.3-fixes' of git://neil.brown.name/md:
  md/bitmap: don't pass -1 to bitmap_storage_alloc.
  md/raid1: Avoid raid1 resync getting stuck
  md: drop null test before destroy functions
  md: clear CHANGE_PENDING in readonly array
  md/raid0: apply base queue limits *before* disk_stack_limits
  md/raid5: don't index beyond end of array in need_this_block().
  raid5: update analysis state for failed stripe
  md: wait for pending superblock updates before switching to read-only
2015-10-04 11:47:28 +01:00
Gabriel Somlo
fa40ae3444 kobject: move EXPORT_SYMBOL() macros next to corresponding definitions
Move EXPORT_SYMBOL() macros in kobject.c from the end of the file
next to the function definitions to which they belong.

Signed-off-by: Gabriel Somlo <somlo@cmu.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-04 11:46:16 +01:00
Ulf Magnusson
f7025709e2 kobject: explain what kobject's sd field is
(More) unclear, especially name-wise, after sysfs_dirent became
kernfs_node.

Signed-off-by: Ulf Magnusson <ulfalizer@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-04 11:46:16 +01:00
Linus Torvalds
0d8770815f Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS updates from Ralf Baechle:
 "This week's round of MIPS fixes:
   - Fix JZ4740 build
   - Fix fallback to GFP_DMA
   - FP seccomp in case of ENOSYS
   - Fix bootmem panic
   - A number of FP and CPS fixes
   - Wire up new syscalls
   - Make sure BPF assembler objects can properly be disassembled
   - Fix BPF assembler code for MIPS I"

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
  MIPS: scall: Always run the seccomp syscall filters
  MIPS: Octeon: Fix kernel panic on startup from memory corruption
  MIPS: Fix R2300 FP context switch handling
  MIPS: Fix octeon FP context switch handling
  MIPS: BPF: Fix load delay slots.
  MIPS: BPF: Do all exports of symbols with FEXPORT().
  MIPS: Fix the build on jz4740 after removing the custom gpio.h
  MIPS: CPS: #ifdef on CONFIG_MIPS_MT_SMP rather than CONFIG_MIPS_MT
  MIPS: CPS: Don't include MT code in non-MT kernels.
  MIPS: CPS: Stop dangling delay slot from has_mt.
  MIPS: dma-default: Fix 32-bit fall back to GFP_DMA
  MIPS: Wire up userfaultfd and membarrier syscalls.
2015-10-04 11:41:58 +01:00
Linus Torvalds
3e519dde1e Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fixes from Thomas Gleixner:
 "This update contains:

   - Fix for a long standing race affecting /proc/irq/NNN

   - One line fix for ARM GICV3-ITS counting the wrong data

   - Warning silencing in ARM GICV3-ITS.  Another GCC trying to be
     overly clever issue"

* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  irqchip/gic-v3-its: Count additional LPIs for the aliased devices
  irqchip/gic-v3-its: Silence warning when its_lpi_alloc_chunks gets inlined
  genirq: Fix race in register_irq_proc()
2015-10-04 11:40:09 +01:00
Ulf Magnusson
398dc4ad52 debugfs: document that debugfs_remove*() accepts NULL and error values
According to commit a59d6293e5 ("debugfs: change parameter check in
debugfs_remove() functions"), this is meant to make cleanup easier for
callers. In that case it ought to be documented.

Signed-off-by: Ulf Magnusson <ulfalizer@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-04 11:36:07 +01:00
Viresh Kumar
621a5f7ad9 debugfs: Pass bool pointer to debugfs_create_bool()
Its a bit odd that debugfs_create_bool() takes 'u32 *' as an argument,
when all it needs is a boolean pointer.

It would be better to update this API to make it accept 'bool *'
instead, as that will make it more consistent and often more convenient.
Over that bool takes just a byte.

That required updates to all user sites as well, in the same commit
updating the API. regmap core was also using
debugfs_{read|write}_file_bool(), directly and variable types were
updated for that to be bool as well.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-04 11:36:07 +01:00
Viresh Kumar
6e58f752a6 ACPI / EC: Fix broken 64bit big-endian users of 'global_lock'
global_lock is defined as an unsigned long and accessing only its lower
32 bits from sysfs is incorrect, as we need to consider other 32 bits
for big endian 64-bit systems. There are no such platforms yet, but the
code needs to be robust for such a case.

Fix that by changing type of 'global_lock' to u32.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-04 11:36:07 +01:00
Shraddha Barke
5cc95cd81b Staging: lustre: obdclass: Remove unused function obd_export_nid2str
Remove obd_export_nid2str as it is defined but not used anymore.

Signed-off-by: Shraddha Barke <shraddha.6596@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-04 11:14:24 +01:00
Markos Chandras
d218af7849 MIPS: scall: Always run the seccomp syscall filters
The MIPS syscall handler code used to return -ENOSYS on invalid
syscalls. Whilst this is expected, it caused problems for seccomp
filters because the said filters never had the change to run since
the code returned -ENOSYS before triggering them. This caused
problems on the chromium testsuite for filters looking for invalid
syscalls. This has now changed and the seccomp filters are always
run even if the syscall is invalid. We return -ENOSYS once we
return from the seccomp filters. Moreover, similar codepaths have
been merged in the process which simplifies somewhat the overall
syscall code.

Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11236/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-10-04 12:10:56 +02:00
Vincent Palatin
72194739f5 usb: Add device quirk for Logitech PTZ cameras
Add a device quirk for the Logitech PTZ Pro Camera and its sibling the
ConferenceCam CC3000e Camera.
This fixes the failed camera enumeration on some boot, particularly on
machines with fast CPU.

Tested by connecting a Logitech PTZ Pro Camera to a machine with a
Haswell Core i7-4600U CPU @ 2.10GHz, and doing thousands of reboot cycles
while recording the kernel logs and taking camera picture after each boot.
Before the patch, more than 7% of the boots show some enumeration transfer
failures and in a few of them, the kernel is giving up before actually
enumerating the webcam. After the patch, the enumeration has been correct
on every reboot.

Signed-off-by: Vincent Palatin <vpalatin@chromium.org>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-04 11:01:13 +01:00
Alexander Inyukhin
1d5c47f555 USB: chaoskey read offset bug
Rng reads in chaoskey driver could return the same data under
the certain conditions.

Signed-off-by: Alexander Inyukhin <shurick@sectorb.msk.ru>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-04 11:01:13 +01:00
Yao-Wen Mao
8484bf2981 USB: Add reset-resume quirk for two Plantronics usb headphones.
These two headphones need a reset-resume quirk to properly resume to
original volume level.

Signed-off-by: Yao-Wen Mao <yaowen@google.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-04 11:01:13 +01:00
Yoshihiro Shimoda
5119dd1e3f usb: renesas_usbhs: Add support for R-Car H3
This patch adds a compatible string to support for R-Car H3.

Since the HS-USB controller of R-Car H3 is almost the same specification
with R-Car Gen2 (these have 16 pipes and usb-dmac), this patch
sets the "type" of renesas_usbhs_driver_param to USBHS_TYPE_RCAR_GEN2.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-04 10:59:03 +01:00
Yoshihiro Shimoda
f975c5cdb5 usb: renesas_usbhs: fix build warning if 64-bit architecture
This patch fixes the following warning if 64-bit architecture environment:

./drivers/usb/renesas_usbhs/common.c:496:25: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
  dparam->type = of_id ? (u32)of_id->data : 0;

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-04 10:59:03 +01:00
Igor Kotrasinski
635e664a6b usbip: vhci_hcd: at unlink, return -EIDRM if vhci_rx took the urb
In a situation where the urb is about to be returned or was never
there, we should return -EIDRM (as per usb_hcd_check_unlink_urb).
This is exactly the situation when the urb is picked up by vhci_rx
before we access priv.

Return -EIDRM rather than 0 when this happens.

Signed-off-by: Igor Kotrasinski <i.kotrasinsk@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-04 10:59:03 +01:00
Igor Kotrasinski
03b0a52822 usbip: vhci_hcd: only return urb at enqueue when served
We handle USB_REQ_SET_ADDRESS at enqueue, so we want to perform
cleanup and giveback the urb. We should not call usb_hcd_giveback_urb
when we're cleaning up after a failed enqueue, though.

Only giveback the urb at cleanup when we claim to have served it.

Signed-off-by: Igor Kotrasinski <i.kotrasinsk@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-04 10:59:03 +01:00
Andrzej Hajda
0c43e9d835 usb: host: ehci-msm: fix handling platform_get_irq result
The function can return negative values.

The problem has been detected using proposed semantic patch
scripts/coccinelle/tests/unsigned_lesser_than_zero.cocci [1].

[1]: http://permalink.gmane.org/gmane.linux.kernel/2038576

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-04 10:59:03 +01:00
Kris Borer
8091e0cafb USB: rewrite isd200_init_info for readability
Previously, Coccinelle would issue the following false positive:

isd200.c:1478:14-18: ERROR: reference preceded by free on line 1472

This change rewrites the isd200_init_info function to have more explicit
execution pathways to make it easier for scripts and humans to parse.

Signed-off-by: Kris Borer <kborer@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-04 10:51:58 +01:00
Luis de Bethencourt
d0452fe09a usb: host: fotg210: remove unreachable code
Before running the platform_driver_unregister() the code will either return
retval or jump to clean. Removing this line that is unreachable.

Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-04 10:51:58 +01:00
Luis de Bethencourt
e2f3951110 usb: host: uhci-platform: Fix module autoload for OF platform driver
This platform driver has a OF device ID table but the OF module
alias information is not created so module autoloading won't work.

Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-04 10:51:58 +01:00
Luis de Bethencourt
04c0b76660 usb: host: ohci-spear: Fix module autoload for OF platform driver
This platform driver has a OF device ID table but the OF module
alias information is not created so module autoloading won't work.

Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-04 10:51:58 +01:00
Luis de Bethencourt
8ddb9b8881 usb: host: fsl-mph-dr-of: Fix module autoload for OF platform driver
This platform driver has a OF device ID table but the OF module
alias information is not created so module autoloading won't work.

Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-04 10:51:58 +01:00
Luis de Bethencourt
e76eaefde8 usb: host: ehci-spear: Fix module autoload for OF platform driver
This platform driver has a OF device ID table but the OF module
alias information is not created so module autoloading won't work.

Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-04 10:51:58 +01:00
Li Jun
7d2d641c44 usb: otg: don't set a_alt_hnp_support feature for OTG 2.0 device
Since a_alt_hnp_support is obsolete in OTG 2.0, HNP capable host should
send this set feature request only if the otg device is connecting to a
non-HNP port and it's compliant with OTG 1.x revision. This is done by
checking its otg descriptor length, OTG 2.0 uses usb_otg20_descriptor
which has different length than OTG 1.x using usb_otg_descriptor.

Signed-off-by: Li Jun <jun.li@freescale.com>
Acked-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-04 10:51:58 +01:00
Muhammad Falak R Wani
9766f2517e usb: core: driver: Use kmalloc_array
Use kmalloc_array instead of kmalloc to allocate memory for an array.
Also, remove the dev_warn for a memory leak, making the if check more
sleek.

Signed-off-by: Muhammad Falak R Wani <falakreyaz@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-04 10:47:19 +01:00
Jeremy Linton
776c15d0ad USB: ehci-platform: Add ACPI bindings for the EHCI platform driver.
This enables USB on the ARM juno board when booted with
an ACPI kernel. The PNP id comes from the PNP/ACPI registry
and describes an EHCI controller without debug.

Tested-by: Huang Shijie <shijie.huang@arm.com>
Reviewed-by: Graeme Gregory <graeme.gregory@linaro.org>
Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-04 10:47:13 +01:00
Jeremy Linton
17f69b5fa6 USB: ehci-platform: Display a DMA configuration error message
If the ehci driver fails to configure the dma settings then display
a dev error instead of simply failing. This is triggered in an
ACPI world if the user fails to set the _CCA on the device.

Tested-by: Huang Shijie <shijie.huang@arm.com>
Reviewed-by: Graeme Gregory <graeme.gregory@linaro.org>
Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-04 10:47:13 +01:00